aboutsummaryrefslogtreecommitdiffstats
path: root/src
diff options
context:
space:
mode:
Diffstat (limited to 'src')
-rw-r--r--src/80003es2lan.c1415
-rw-r--r--src/80003es2lan.h70
-rw-r--r--src/82571.c2079
-rw-r--r--src/82571.h35
-rw-r--r--src/Makefile156
-rw-r--r--src/Module.supported1
-rw-r--r--src/common.mk358
-rw-r--r--src/defines.h813
-rw-r--r--src/e1000.h682
-rw-r--r--src/ethtool.c2878
-rw-r--r--src/hw.h755
-rw-r--r--src/ich8lan.c5984
-rw-r--r--src/ich8lan.h308
-rw-r--r--src/kcompat.c2585
-rw-r--r--src/kcompat.h7254
-rw-r--r--src/kcompat_ethtool.c1150
-rw-r--r--src/kcompat_overflow.h315
-rw-r--r--src/mac.c1816
-rw-r--r--src/mac.h51
-rw-r--r--src/manage.c330
-rw-r--r--src/manage.h46
-rw-r--r--src/netdev.c9083
-rw-r--r--src/nvm.c616
-rw-r--r--src/nvm.h22
-rw-r--r--src/param.c600
-rw-r--r--src/phy.c3222
-rw-r--r--src/phy.h223
-rw-r--r--src/ptp.c416
-rw-r--r--src/regs.h258
29 files changed, 43521 insertions, 0 deletions
diff --git a/src/80003es2lan.c b/src/80003es2lan.c
new file mode 100644
index 0000000..0be387b
--- /dev/null
+++ b/src/80003es2lan.c
@@ -0,0 +1,1415 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright(c) 1999 - 2020 Intel Corporation. */
+
+/* 80003ES2LAN Gigabit Ethernet Controller (Copper)
+ * 80003ES2LAN Gigabit Ethernet Controller (Serdes)
+ */
+
+#include "e1000.h"
+
+/* A table for the GG82563 cable length where the range is defined
+ * with a lower bound at "index" and the upper bound at
+ * "index + 5".
+ */
+static const u16 e1000_gg82563_cable_length_table[] = {
+ 0, 60, 115, 150, 150, 60, 115, 150, 180, 180, 0xFF
+};
+
+#define GG82563_CABLE_LENGTH_TABLE_SIZE \
+ (sizeof(e1000_gg82563_cable_length_table) / \
+ sizeof(e1000_gg82563_cable_length_table[0]))
+
+static s32 e1000_setup_copper_link_80003es2lan(struct e1000_hw *hw);
+static s32 e1000_acquire_swfw_sync_80003es2lan(struct e1000_hw *hw, u16 mask);
+static void e1000_release_swfw_sync_80003es2lan(struct e1000_hw *hw, u16 mask);
+static void e1000_initialize_hw_bits_80003es2lan(struct e1000_hw *hw);
+static void e1000_clear_hw_cntrs_80003es2lan(struct e1000_hw *hw);
+static s32 e1000_cfg_kmrn_1000_80003es2lan(struct e1000_hw *hw);
+static s32 e1000_cfg_kmrn_10_100_80003es2lan(struct e1000_hw *hw, u16 duplex);
+static s32 e1000_read_kmrn_reg_80003es2lan(struct e1000_hw *hw, u32 offset,
+ u16 *data);
+static s32 e1000_write_kmrn_reg_80003es2lan(struct e1000_hw *hw, u32 offset,
+ u16 data);
+static void e1000_power_down_phy_copper_80003es2lan(struct e1000_hw *hw);
+
+/**
+ * e1000_init_phy_params_80003es2lan - Init ESB2 PHY func ptrs.
+ * @hw: pointer to the HW structure
+ **/
+static s32 e1000_init_phy_params_80003es2lan(struct e1000_hw *hw)
+{
+ struct e1000_phy_info *phy = &hw->phy;
+ s32 ret_val;
+
+ if (hw->phy.media_type != e1000_media_type_copper) {
+ phy->type = e1000_phy_none;
+ return 0;
+ } else {
+ phy->ops.power_up = e1000_power_up_phy_copper;
+ phy->ops.power_down = e1000_power_down_phy_copper_80003es2lan;
+ }
+
+ phy->addr = 1;
+ phy->autoneg_mask = AUTONEG_ADVERTISE_SPEED_DEFAULT;
+ phy->reset_delay_us = 100;
+ phy->type = e1000_phy_gg82563;
+
+ /* This can only be done after all function pointers are setup. */
+ ret_val = e1000e_get_phy_id(hw);
+
+ /* Verify phy id */
+ if (phy->id != GG82563_E_PHY_ID)
+ return -E1000_ERR_PHY;
+
+ return ret_val;
+}
+
+/**
+ * e1000_init_nvm_params_80003es2lan - Init ESB2 NVM func ptrs.
+ * @hw: pointer to the HW structure
+ **/
+static s32 e1000_init_nvm_params_80003es2lan(struct e1000_hw *hw)
+{
+ struct e1000_nvm_info *nvm = &hw->nvm;
+ u32 eecd = er32(EECD);
+ u16 size;
+
+ nvm->opcode_bits = 8;
+ nvm->delay_usec = 1;
+ switch (nvm->override) {
+ case e1000_nvm_override_spi_large:
+ nvm->page_size = 32;
+ nvm->address_bits = 16;
+ break;
+ case e1000_nvm_override_spi_small:
+ nvm->page_size = 8;
+ nvm->address_bits = 8;
+ break;
+ default:
+ nvm->page_size = eecd & E1000_EECD_ADDR_BITS ? 32 : 8;
+ nvm->address_bits = eecd & E1000_EECD_ADDR_BITS ? 16 : 8;
+ break;
+ }
+
+ nvm->type = e1000_nvm_eeprom_spi;
+
+ size = (u16)((eecd & E1000_EECD_SIZE_EX_MASK) >>
+ E1000_EECD_SIZE_EX_SHIFT);
+
+ /* Added to a constant, "size" becomes the left-shift value
+ * for setting word_size.
+ */
+ size += NVM_WORD_SIZE_BASE_SHIFT;
+
+ /* EEPROM access above 16k is unsupported */
+ if (size > 14)
+ size = 14;
+ nvm->word_size = 1 << size;
+
+ return 0;
+}
+
+/**
+ * e1000_init_mac_params_80003es2lan - Init ESB2 MAC func ptrs.
+ * @hw: pointer to the HW structure
+ **/
+static s32 e1000_init_mac_params_80003es2lan(struct e1000_hw *hw)
+{
+ struct e1000_mac_info *mac = &hw->mac;
+
+ /* Set media type and media-dependent function pointers */
+ switch (hw->adapter->pdev->device) {
+ case E1000_DEV_ID_80003ES2LAN_SERDES_DPT:
+ hw->phy.media_type = e1000_media_type_internal_serdes;
+ mac->ops.check_for_link = e1000e_check_for_serdes_link;
+ mac->ops.setup_physical_interface =
+ e1000e_setup_fiber_serdes_link;
+ break;
+ default:
+ hw->phy.media_type = e1000_media_type_copper;
+ mac->ops.check_for_link = e1000e_check_for_copper_link;
+ mac->ops.setup_physical_interface =
+ e1000_setup_copper_link_80003es2lan;
+ break;
+ }
+
+ /* Set mta register count */
+ mac->mta_reg_count = 128;
+ /* Set rar entry count */
+ mac->rar_entry_count = E1000_RAR_ENTRIES;
+ /* FWSM register */
+ mac->has_fwsm = true;
+ /* ARC supported; valid only if manageability features are enabled. */
+ mac->arc_subsystem_valid = !!(er32(FWSM) & E1000_FWSM_MODE_MASK);
+ /* Adaptive IFS not supported */
+ mac->adaptive_ifs = false;
+
+ /* set lan id for port to determine which phy lock to use */
+ hw->mac.ops.set_lan_id(hw);
+
+ return 0;
+}
+
+static s32 e1000_get_variants_80003es2lan(struct e1000_adapter *adapter)
+{
+ struct e1000_hw *hw = &adapter->hw;
+ s32 rc;
+
+ rc = e1000_init_mac_params_80003es2lan(hw);
+ if (rc)
+ return rc;
+
+ rc = e1000_init_nvm_params_80003es2lan(hw);
+ if (rc)
+ return rc;
+
+ rc = e1000_init_phy_params_80003es2lan(hw);
+ if (rc)
+ return rc;
+
+ return 0;
+}
+
+/**
+ * e1000_acquire_phy_80003es2lan - Acquire rights to access PHY
+ * @hw: pointer to the HW structure
+ *
+ * A wrapper to acquire access rights to the correct PHY.
+ **/
+static s32 e1000_acquire_phy_80003es2lan(struct e1000_hw *hw)
+{
+ u16 mask;
+
+ mask = hw->bus.func ? E1000_SWFW_PHY1_SM : E1000_SWFW_PHY0_SM;
+ return e1000_acquire_swfw_sync_80003es2lan(hw, mask);
+}
+
+/**
+ * e1000_release_phy_80003es2lan - Release rights to access PHY
+ * @hw: pointer to the HW structure
+ *
+ * A wrapper to release access rights to the correct PHY.
+ **/
+static void e1000_release_phy_80003es2lan(struct e1000_hw *hw)
+{
+ u16 mask;
+
+ mask = hw->bus.func ? E1000_SWFW_PHY1_SM : E1000_SWFW_PHY0_SM;
+ e1000_release_swfw_sync_80003es2lan(hw, mask);
+}
+
+/**
+ * e1000_acquire_mac_csr_80003es2lan - Acquire right to access Kumeran register
+ * @hw: pointer to the HW structure
+ *
+ * Acquire the semaphore to access the Kumeran interface.
+ *
+ **/
+static s32 e1000_acquire_mac_csr_80003es2lan(struct e1000_hw *hw)
+{
+ u16 mask;
+
+ mask = E1000_SWFW_CSR_SM;
+
+ return e1000_acquire_swfw_sync_80003es2lan(hw, mask);
+}
+
+/**
+ * e1000_release_mac_csr_80003es2lan - Release right to access Kumeran Register
+ * @hw: pointer to the HW structure
+ *
+ * Release the semaphore used to access the Kumeran interface
+ **/
+static void e1000_release_mac_csr_80003es2lan(struct e1000_hw *hw)
+{
+ u16 mask;
+
+ mask = E1000_SWFW_CSR_SM;
+
+ e1000_release_swfw_sync_80003es2lan(hw, mask);
+}
+
+/**
+ * e1000_acquire_nvm_80003es2lan - Acquire rights to access NVM
+ * @hw: pointer to the HW structure
+ *
+ * Acquire the semaphore to access the EEPROM.
+ **/
+static s32 e1000_acquire_nvm_80003es2lan(struct e1000_hw *hw)
+{
+ s32 ret_val;
+
+ ret_val = e1000_acquire_swfw_sync_80003es2lan(hw, E1000_SWFW_EEP_SM);
+ if (ret_val)
+ return ret_val;
+
+ ret_val = e1000e_acquire_nvm(hw);
+
+ if (ret_val)
+ e1000_release_swfw_sync_80003es2lan(hw, E1000_SWFW_EEP_SM);
+
+ return ret_val;
+}
+
+/**
+ * e1000_release_nvm_80003es2lan - Relinquish rights to access NVM
+ * @hw: pointer to the HW structure
+ *
+ * Release the semaphore used to access the EEPROM.
+ **/
+static void e1000_release_nvm_80003es2lan(struct e1000_hw *hw)
+{
+ e1000e_release_nvm(hw);
+ e1000_release_swfw_sync_80003es2lan(hw, E1000_SWFW_EEP_SM);
+}
+
+/**
+ * e1000_acquire_swfw_sync_80003es2lan - Acquire SW/FW semaphore
+ * @hw: pointer to the HW structure
+ * @mask: specifies which semaphore to acquire
+ *
+ * Acquire the SW/FW semaphore to access the PHY or NVM. The mask
+ * will also specify which port we're acquiring the lock for.
+ **/
+static s32 e1000_acquire_swfw_sync_80003es2lan(struct e1000_hw *hw, u16 mask)
+{
+ u32 swfw_sync;
+ u32 swmask = mask;
+ u32 fwmask = mask << 16;
+ s32 i = 0;
+ s32 timeout = 50;
+
+ while (i < timeout) {
+ if (e1000e_get_hw_semaphore(hw))
+ return -E1000_ERR_SWFW_SYNC;
+
+ swfw_sync = er32(SW_FW_SYNC);
+ if (!(swfw_sync & (fwmask | swmask)))
+ break;
+
+ /* Firmware currently using resource (fwmask)
+ * or other software thread using resource (swmask)
+ */
+ e1000e_put_hw_semaphore(hw);
+ mdelay(5);
+ i++;
+ }
+
+ if (i == timeout) {
+ e_dbg("Driver can't access resource, SW_FW_SYNC timeout.\n");
+ return -E1000_ERR_SWFW_SYNC;
+ }
+
+ swfw_sync |= swmask;
+ ew32(SW_FW_SYNC, swfw_sync);
+
+ e1000e_put_hw_semaphore(hw);
+
+ return 0;
+}
+
+/**
+ * e1000_release_swfw_sync_80003es2lan - Release SW/FW semaphore
+ * @hw: pointer to the HW structure
+ * @mask: specifies which semaphore to acquire
+ *
+ * Release the SW/FW semaphore used to access the PHY or NVM. The mask
+ * will also specify which port we're releasing the lock for.
+ **/
+static void e1000_release_swfw_sync_80003es2lan(struct e1000_hw *hw, u16 mask)
+{
+ u32 swfw_sync;
+
+ while (e1000e_get_hw_semaphore(hw) != 0)
+ ; /* Empty */
+
+ swfw_sync = er32(SW_FW_SYNC);
+ swfw_sync &= ~mask;
+ ew32(SW_FW_SYNC, swfw_sync);
+
+ e1000e_put_hw_semaphore(hw);
+}
+
+/**
+ * e1000_read_phy_reg_gg82563_80003es2lan - Read GG82563 PHY register
+ * @hw: pointer to the HW structure
+ * @offset: offset of the register to read
+ * @data: pointer to the data returned from the operation
+ *
+ * Read the GG82563 PHY register.
+ **/
+static s32 e1000_read_phy_reg_gg82563_80003es2lan(struct e1000_hw *hw,
+ u32 offset, u16 *data)
+{
+ s32 ret_val;
+ u32 page_select;
+ u16 temp;
+
+ ret_val = e1000_acquire_phy_80003es2lan(hw);
+ if (ret_val)
+ return ret_val;
+
+ /* Select Configuration Page */
+ if ((offset & MAX_PHY_REG_ADDRESS) < GG82563_MIN_ALT_REG) {
+ page_select = GG82563_PHY_PAGE_SELECT;
+ } else {
+ /* Use Alternative Page Select register to access
+ * registers 30 and 31
+ */
+ page_select = GG82563_PHY_PAGE_SELECT_ALT;
+ }
+
+ temp = (u16)((u16)offset >> GG82563_PAGE_SHIFT);
+ ret_val = e1000e_write_phy_reg_mdic(hw, page_select, temp);
+ if (ret_val) {
+ e1000_release_phy_80003es2lan(hw);
+ return ret_val;
+ }
+
+ if (hw->dev_spec.e80003es2lan.mdic_wa_enable) {
+ /* The "ready" bit in the MDIC register may be incorrectly set
+ * before the device has completed the "Page Select" MDI
+ * transaction. So we wait 200us after each MDI command...
+ */
+ usleep_range(200, 400);
+
+ /* ...and verify the command was successful. */
+ ret_val = e1000e_read_phy_reg_mdic(hw, page_select, &temp);
+
+ if (((u16)offset >> GG82563_PAGE_SHIFT) != temp) {
+ e1000_release_phy_80003es2lan(hw);
+ return -E1000_ERR_PHY;
+ }
+
+ usleep_range(200, 400);
+
+ ret_val = e1000e_read_phy_reg_mdic(hw,
+ MAX_PHY_REG_ADDRESS & offset,
+ data);
+
+ usleep_range(200, 400);
+ } else {
+ ret_val = e1000e_read_phy_reg_mdic(hw,
+ MAX_PHY_REG_ADDRESS & offset,
+ data);
+ }
+
+ e1000_release_phy_80003es2lan(hw);
+
+ return ret_val;
+}
+
+/**
+ * e1000_write_phy_reg_gg82563_80003es2lan - Write GG82563 PHY register
+ * @hw: pointer to the HW structure
+ * @offset: offset of the register to read
+ * @data: value to write to the register
+ *
+ * Write to the GG82563 PHY register.
+ **/
+static s32 e1000_write_phy_reg_gg82563_80003es2lan(struct e1000_hw *hw,
+ u32 offset, u16 data)
+{
+ s32 ret_val;
+ u32 page_select;
+ u16 temp;
+
+ ret_val = e1000_acquire_phy_80003es2lan(hw);
+ if (ret_val)
+ return ret_val;
+
+ /* Select Configuration Page */
+ if ((offset & MAX_PHY_REG_ADDRESS) < GG82563_MIN_ALT_REG) {
+ page_select = GG82563_PHY_PAGE_SELECT;
+ } else {
+ /* Use Alternative Page Select register to access
+ * registers 30 and 31
+ */
+ page_select = GG82563_PHY_PAGE_SELECT_ALT;
+ }
+
+ temp = (u16)((u16)offset >> GG82563_PAGE_SHIFT);
+ ret_val = e1000e_write_phy_reg_mdic(hw, page_select, temp);
+ if (ret_val) {
+ e1000_release_phy_80003es2lan(hw);
+ return ret_val;
+ }
+
+ if (hw->dev_spec.e80003es2lan.mdic_wa_enable) {
+ /* The "ready" bit in the MDIC register may be incorrectly set
+ * before the device has completed the "Page Select" MDI
+ * transaction. So we wait 200us after each MDI command...
+ */
+ usleep_range(200, 400);
+
+ /* ...and verify the command was successful. */
+ ret_val = e1000e_read_phy_reg_mdic(hw, page_select, &temp);
+
+ if (((u16)offset >> GG82563_PAGE_SHIFT) != temp) {
+ e1000_release_phy_80003es2lan(hw);
+ return -E1000_ERR_PHY;
+ }
+
+ usleep_range(200, 400);
+
+ ret_val = e1000e_write_phy_reg_mdic(hw,
+ MAX_PHY_REG_ADDRESS &
+ offset, data);
+
+ usleep_range(200, 400);
+ } else {
+ ret_val = e1000e_write_phy_reg_mdic(hw,
+ MAX_PHY_REG_ADDRESS &
+ offset, data);
+ }
+
+ e1000_release_phy_80003es2lan(hw);
+
+ return ret_val;
+}
+
+/**
+ * e1000_write_nvm_80003es2lan - Write to ESB2 NVM
+ * @hw: pointer to the HW structure
+ * @offset: offset of the register to read
+ * @words: number of words to write
+ * @data: buffer of data to write to the NVM
+ *
+ * Write "words" of data to the ESB2 NVM.
+ **/
+static s32 e1000_write_nvm_80003es2lan(struct e1000_hw *hw, u16 offset,
+ u16 words, u16 *data)
+{
+ return e1000e_write_nvm_spi(hw, offset, words, data);
+}
+
+/**
+ * e1000_get_cfg_done_80003es2lan - Wait for configuration to complete
+ * @hw: pointer to the HW structure
+ *
+ * Wait a specific amount of time for manageability processes to complete.
+ * This is a function pointer entry point called by the phy module.
+ **/
+static s32 e1000_get_cfg_done_80003es2lan(struct e1000_hw *hw)
+{
+ s32 timeout = PHY_CFG_TIMEOUT;
+ u32 mask = E1000_NVM_CFG_DONE_PORT_0;
+
+ if (hw->bus.func == 1)
+ mask = E1000_NVM_CFG_DONE_PORT_1;
+
+ while (timeout) {
+ if (er32(EEMNGCTL) & mask)
+ break;
+ usleep_range(1000, 2000);
+ timeout--;
+ }
+ if (!timeout) {
+ e_dbg("MNG configuration cycle has not completed.\n");
+ return -E1000_ERR_RESET;
+ }
+
+ return 0;
+}
+
+/**
+ * e1000_phy_force_speed_duplex_80003es2lan - Force PHY speed and duplex
+ * @hw: pointer to the HW structure
+ *
+ * Force the speed and duplex settings onto the PHY. This is a
+ * function pointer entry point called by the phy module.
+ **/
+static s32 e1000_phy_force_speed_duplex_80003es2lan(struct e1000_hw *hw)
+{
+ s32 ret_val;
+ u16 phy_data;
+ bool link;
+
+ /* Clear Auto-Crossover to force MDI manually. M88E1000 requires MDI
+ * forced whenever speed and duplex are forced.
+ */
+ ret_val = e1e_rphy(hw, M88E1000_PHY_SPEC_CTRL, &phy_data);
+ if (ret_val)
+ return ret_val;
+
+ phy_data &= ~GG82563_PSCR_CROSSOVER_MODE_AUTO;
+ ret_val = e1e_wphy(hw, GG82563_PHY_SPEC_CTRL, phy_data);
+ if (ret_val)
+ return ret_val;
+
+ e_dbg("GG82563 PSCR: %X\n", phy_data);
+
+ ret_val = e1e_rphy(hw, MII_BMCR, &phy_data);
+ if (ret_val)
+ return ret_val;
+
+ e1000e_phy_force_speed_duplex_setup(hw, &phy_data);
+
+ /* Reset the phy to commit changes. */
+ phy_data |= BMCR_RESET;
+
+ ret_val = e1e_wphy(hw, MII_BMCR, phy_data);
+ if (ret_val)
+ return ret_val;
+
+ udelay(1);
+
+ if (hw->phy.autoneg_wait_to_complete) {
+ e_dbg("Waiting for forced speed/duplex link on GG82563 phy.\n");
+
+ ret_val = e1000e_phy_has_link_generic(hw, PHY_FORCE_LIMIT,
+ 100000, &link);
+ if (ret_val)
+ return ret_val;
+
+ if (!link) {
+ /* We didn't get link.
+ * Reset the DSP and cross our fingers.
+ */
+ ret_val = e1000e_phy_reset_dsp(hw);
+ if (ret_val)
+ return ret_val;
+ }
+
+ /* Try once more */
+ ret_val = e1000e_phy_has_link_generic(hw, PHY_FORCE_LIMIT,
+ 100000, &link);
+ if (ret_val)
+ return ret_val;
+ }
+
+ ret_val = e1e_rphy(hw, GG82563_PHY_MAC_SPEC_CTRL, &phy_data);
+ if (ret_val)
+ return ret_val;
+
+ /* Resetting the phy means we need to verify the TX_CLK corresponds
+ * to the link speed. 10Mbps -> 2.5MHz, else 25MHz.
+ */
+ phy_data &= ~GG82563_MSCR_TX_CLK_MASK;
+ if (hw->mac.forced_speed_duplex & E1000_ALL_10_SPEED)
+ phy_data |= GG82563_MSCR_TX_CLK_10MBPS_2_5;
+ else
+ phy_data |= GG82563_MSCR_TX_CLK_100MBPS_25;
+
+ /* In addition, we must re-enable CRS on Tx for both half and full
+ * duplex.
+ */
+ phy_data |= GG82563_MSCR_ASSERT_CRS_ON_TX;
+ ret_val = e1e_wphy(hw, GG82563_PHY_MAC_SPEC_CTRL, phy_data);
+
+ return ret_val;
+}
+
+/**
+ * e1000_get_cable_length_80003es2lan - Set approximate cable length
+ * @hw: pointer to the HW structure
+ *
+ * Find the approximate cable length as measured by the GG82563 PHY.
+ * This is a function pointer entry point called by the phy module.
+ **/
+static s32 e1000_get_cable_length_80003es2lan(struct e1000_hw *hw)
+{
+ struct e1000_phy_info *phy = &hw->phy;
+ s32 ret_val;
+ u16 phy_data, index;
+
+ ret_val = e1e_rphy(hw, GG82563_PHY_DSP_DISTANCE, &phy_data);
+ if (ret_val)
+ return ret_val;
+
+ index = phy_data & GG82563_DSPD_CABLE_LENGTH;
+
+ if (index >= GG82563_CABLE_LENGTH_TABLE_SIZE - 5)
+ return -E1000_ERR_PHY;
+
+ phy->min_cable_length = e1000_gg82563_cable_length_table[index];
+ phy->max_cable_length = e1000_gg82563_cable_length_table[index + 5];
+
+ phy->cable_length = (phy->min_cable_length + phy->max_cable_length) / 2;
+
+ return 0;
+}
+
+/**
+ * e1000_get_link_up_info_80003es2lan - Report speed and duplex
+ * @hw: pointer to the HW structure
+ * @speed: pointer to speed buffer
+ * @duplex: pointer to duplex buffer
+ *
+ * Retrieve the current speed and duplex configuration.
+ **/
+static s32 e1000_get_link_up_info_80003es2lan(struct e1000_hw *hw, u16 *speed,
+ u16 *duplex)
+{
+ s32 ret_val;
+
+ if (hw->phy.media_type == e1000_media_type_copper) {
+ ret_val = e1000e_get_speed_and_duplex_copper(hw, speed, duplex);
+ hw->phy.ops.cfg_on_link_up(hw);
+ } else {
+ ret_val = e1000e_get_speed_and_duplex_fiber_serdes(hw,
+ speed,
+ duplex);
+ }
+
+ return ret_val;
+}
+
+/**
+ * e1000_reset_hw_80003es2lan - Reset the ESB2 controller
+ * @hw: pointer to the HW structure
+ *
+ * Perform a global reset to the ESB2 controller.
+ **/
+static s32 e1000_reset_hw_80003es2lan(struct e1000_hw *hw)
+{
+ u32 ctrl;
+ s32 ret_val;
+ u16 kum_reg_data;
+
+ /* Prevent the PCI-E bus from sticking if there is no TLP connection
+ * on the last TLP read/write transaction when MAC is reset.
+ */
+ ret_val = e1000e_disable_pcie_master(hw);
+ if (ret_val)
+ e_dbg("PCI-E Master disable polling has failed.\n");
+
+ e_dbg("Masking off all interrupts\n");
+ ew32(IMC, 0xffffffff);
+
+ ew32(RCTL, 0);
+ ew32(TCTL, E1000_TCTL_PSP);
+ e1e_flush();
+
+ usleep_range(10000, 20000);
+
+ ctrl = er32(CTRL);
+
+ ret_val = e1000_acquire_phy_80003es2lan(hw);
+ if (ret_val)
+ return ret_val;
+
+ e_dbg("Issuing a global reset to MAC\n");
+ ew32(CTRL, ctrl | E1000_CTRL_RST);
+ e1000_release_phy_80003es2lan(hw);
+
+ /* Disable IBIST slave mode (far-end loopback) */
+ ret_val = e1000_read_kmrn_reg_80003es2lan(hw,
+ E1000_KMRNCTRLSTA_INBAND_PARAM,
+ &kum_reg_data);
+ if (!ret_val) {
+ kum_reg_data |= E1000_KMRNCTRLSTA_IBIST_DISABLE;
+ ret_val = e1000_write_kmrn_reg_80003es2lan(hw,
+ E1000_KMRNCTRLSTA_INBAND_PARAM,
+ kum_reg_data);
+ if (ret_val)
+ e_dbg("Error disabling far-end loopback\n");
+ } else
+ e_dbg("Error disabling far-end loopback\n");
+
+ ret_val = e1000e_get_auto_rd_done(hw);
+ if (ret_val)
+ /* We don't want to continue accessing MAC registers. */
+ return ret_val;
+
+ /* Clear any pending interrupt events. */
+ ew32(IMC, 0xffffffff);
+ er32(ICR);
+
+ return e1000_check_alt_mac_addr_generic(hw);
+}
+
+/**
+ * e1000_init_hw_80003es2lan - Initialize the ESB2 controller
+ * @hw: pointer to the HW structure
+ *
+ * Initialize the hw bits, LED, VFTA, MTA, link and hw counters.
+ **/
+static s32 e1000_init_hw_80003es2lan(struct e1000_hw *hw)
+{
+ struct e1000_mac_info *mac = &hw->mac;
+ u32 reg_data;
+ s32 ret_val;
+ u16 kum_reg_data;
+ u16 i;
+
+ e1000_initialize_hw_bits_80003es2lan(hw);
+
+ /* Initialize identification LED */
+ ret_val = mac->ops.id_led_init(hw);
+ /* An error is not fatal and we should not stop init due to this */
+ if (ret_val)
+ e_dbg("Error initializing identification LED\n");
+
+ /* Disabling VLAN filtering */
+ e_dbg("Initializing the IEEE VLAN\n");
+ mac->ops.clear_vfta(hw);
+
+ /* Setup the receive address. */
+ e1000e_init_rx_addrs(hw, mac->rar_entry_count);
+
+ /* Zero out the Multicast HASH table */
+ e_dbg("Zeroing the MTA\n");
+ for (i = 0; i < mac->mta_reg_count; i++)
+ E1000_WRITE_REG_ARRAY(hw, E1000_MTA, i, 0);
+
+ /* Setup link and flow control */
+ ret_val = mac->ops.setup_link(hw);
+ if (ret_val)
+ return ret_val;
+
+ /* Disable IBIST slave mode (far-end loopback) */
+ ret_val =
+ e1000_read_kmrn_reg_80003es2lan(hw, E1000_KMRNCTRLSTA_INBAND_PARAM,
+ &kum_reg_data);
+ if (!ret_val) {
+ kum_reg_data |= E1000_KMRNCTRLSTA_IBIST_DISABLE;
+ ret_val = e1000_write_kmrn_reg_80003es2lan(hw,
+ E1000_KMRNCTRLSTA_INBAND_PARAM,
+ kum_reg_data);
+ if (ret_val)
+ e_dbg("Error disabling far-end loopback\n");
+ } else
+ e_dbg("Error disabling far-end loopback\n");
+
+ /* Set the transmit descriptor write-back policy */
+ reg_data = er32(TXDCTL(0));
+ reg_data = ((reg_data & ~E1000_TXDCTL_WTHRESH) |
+ E1000_TXDCTL_FULL_TX_DESC_WB | E1000_TXDCTL_COUNT_DESC);
+ ew32(TXDCTL(0), reg_data);
+
+ /* ...for both queues. */
+ reg_data = er32(TXDCTL(1));
+ reg_data = ((reg_data & ~E1000_TXDCTL_WTHRESH) |
+ E1000_TXDCTL_FULL_TX_DESC_WB | E1000_TXDCTL_COUNT_DESC);
+ ew32(TXDCTL(1), reg_data);
+
+ /* Enable retransmit on late collisions */
+ reg_data = er32(TCTL);
+ reg_data |= E1000_TCTL_RTLC;
+ ew32(TCTL, reg_data);
+
+ /* Configure Gigabit Carry Extend Padding */
+ reg_data = er32(TCTL_EXT);
+ reg_data &= ~E1000_TCTL_EXT_GCEX_MASK;
+ reg_data |= DEFAULT_TCTL_EXT_GCEX_80003ES2LAN;
+ ew32(TCTL_EXT, reg_data);
+
+ /* Configure Transmit Inter-Packet Gap */
+ reg_data = er32(TIPG);
+ reg_data &= ~E1000_TIPG_IPGT_MASK;
+ reg_data |= DEFAULT_TIPG_IPGT_1000_80003ES2LAN;
+ ew32(TIPG, reg_data);
+
+ reg_data = E1000_READ_REG_ARRAY(hw, E1000_FFLT, 0x0001);
+ reg_data &= ~0x00100000;
+ E1000_WRITE_REG_ARRAY(hw, E1000_FFLT, 0x0001, reg_data);
+
+ /* default to true to enable the MDIC W/A */
+ hw->dev_spec.e80003es2lan.mdic_wa_enable = true;
+
+ ret_val =
+ e1000_read_kmrn_reg_80003es2lan(hw, E1000_KMRNCTRLSTA_OFFSET >>
+ E1000_KMRNCTRLSTA_OFFSET_SHIFT, &i);
+ if (!ret_val) {
+ if ((i & E1000_KMRNCTRLSTA_OPMODE_MASK) ==
+ E1000_KMRNCTRLSTA_OPMODE_INBAND_MDIO)
+ hw->dev_spec.e80003es2lan.mdic_wa_enable = false;
+ }
+
+ /* Clear all of the statistics registers (clear on read). It is
+ * important that we do this after we have tried to establish link
+ * because the symbol error count will increment wildly if there
+ * is no link.
+ */
+ e1000_clear_hw_cntrs_80003es2lan(hw);
+
+ return ret_val;
+}
+
+/**
+ * e1000_initialize_hw_bits_80003es2lan - Init hw bits of ESB2
+ * @hw: pointer to the HW structure
+ *
+ * Initializes required hardware-dependent bits needed for normal operation.
+ **/
+static void e1000_initialize_hw_bits_80003es2lan(struct e1000_hw *hw)
+{
+ u32 reg;
+
+ /* Transmit Descriptor Control 0 */
+ reg = er32(TXDCTL(0));
+ reg |= (1 << 22);
+ ew32(TXDCTL(0), reg);
+
+ /* Transmit Descriptor Control 1 */
+ reg = er32(TXDCTL(1));
+ reg |= (1 << 22);
+ ew32(TXDCTL(1), reg);
+
+ /* Transmit Arbitration Control 0 */
+ reg = er32(TARC(0));
+ reg &= ~(0xF << 27); /* 30:27 */
+ if (hw->phy.media_type != e1000_media_type_copper)
+ reg &= ~(1 << 20);
+ ew32(TARC(0), reg);
+
+ /* Transmit Arbitration Control 1 */
+ reg = er32(TARC(1));
+ if (er32(TCTL) & E1000_TCTL_MULR)
+ reg &= ~(1 << 28);
+ else
+ reg |= (1 << 28);
+ ew32(TARC(1), reg);
+
+ /* Disable IPv6 extension header parsing because some malformed
+ * IPv6 headers can hang the Rx.
+ */
+ reg = er32(RFCTL);
+ reg |= (E1000_RFCTL_IPV6_EX_DIS | E1000_RFCTL_NEW_IPV6_EXT_DIS);
+ ew32(RFCTL, reg);
+}
+
+/**
+ * e1000_copper_link_setup_gg82563_80003es2lan - Configure GG82563 Link
+ * @hw: pointer to the HW structure
+ *
+ * Setup some GG82563 PHY registers for obtaining link
+ **/
+static s32 e1000_copper_link_setup_gg82563_80003es2lan(struct e1000_hw *hw)
+{
+ struct e1000_phy_info *phy = &hw->phy;
+ s32 ret_val;
+ u32 reg;
+ u16 data;
+
+ ret_val = e1e_rphy(hw, GG82563_PHY_MAC_SPEC_CTRL, &data);
+ if (ret_val)
+ return ret_val;
+
+ data |= GG82563_MSCR_ASSERT_CRS_ON_TX;
+ /* Use 25MHz for both link down and 1000Base-T for Tx clock. */
+ data |= GG82563_MSCR_TX_CLK_1000MBPS_25;
+
+ ret_val = e1e_wphy(hw, GG82563_PHY_MAC_SPEC_CTRL, data);
+ if (ret_val)
+ return ret_val;
+
+ /* Options:
+ * MDI/MDI-X = 0 (default)
+ * 0 - Auto for all speeds
+ * 1 - MDI mode
+ * 2 - MDI-X mode
+ * 3 - Auto for 1000Base-T only (MDI-X for 10/100Base-T modes)
+ */
+ ret_val = e1e_rphy(hw, GG82563_PHY_SPEC_CTRL, &data);
+ if (ret_val)
+ return ret_val;
+
+ data &= ~GG82563_PSCR_CROSSOVER_MODE_MASK;
+
+ switch (phy->mdix) {
+ case 1:
+ data |= GG82563_PSCR_CROSSOVER_MODE_MDI;
+ break;
+ case 2:
+ data |= GG82563_PSCR_CROSSOVER_MODE_MDIX;
+ break;
+ case 0:
+ default:
+ data |= GG82563_PSCR_CROSSOVER_MODE_AUTO;
+ break;
+ }
+
+ /* Options:
+ * disable_polarity_correction = 0 (default)
+ * Automatic Correction for Reversed Cable Polarity
+ * 0 - Disabled
+ * 1 - Enabled
+ */
+ data &= ~GG82563_PSCR_POLARITY_REVERSAL_DISABLE;
+ if (phy->disable_polarity_correction)
+ data |= GG82563_PSCR_POLARITY_REVERSAL_DISABLE;
+
+ ret_val = e1e_wphy(hw, GG82563_PHY_SPEC_CTRL, data);
+ if (ret_val)
+ return ret_val;
+
+ /* SW Reset the PHY so all changes take effect */
+ ret_val = hw->phy.ops.commit(hw);
+ if (ret_val) {
+ e_dbg("Error Resetting the PHY\n");
+ return ret_val;
+ }
+
+ /* Bypass Rx and Tx FIFO's */
+ reg = E1000_KMRNCTRLSTA_OFFSET_FIFO_CTRL;
+ data = (E1000_KMRNCTRLSTA_FIFO_CTRL_RX_BYPASS |
+ E1000_KMRNCTRLSTA_FIFO_CTRL_TX_BYPASS);
+ ret_val = e1000_write_kmrn_reg_80003es2lan(hw, reg, data);
+ if (ret_val)
+ return ret_val;
+
+ reg = E1000_KMRNCTRLSTA_OFFSET_MAC2PHY_OPMODE;
+ ret_val = e1000_read_kmrn_reg_80003es2lan(hw, reg, &data);
+ if (ret_val)
+ return ret_val;
+ data |= E1000_KMRNCTRLSTA_OPMODE_E_IDLE;
+ ret_val = e1000_write_kmrn_reg_80003es2lan(hw, reg, data);
+ if (ret_val)
+ return ret_val;
+
+ ret_val = e1e_rphy(hw, GG82563_PHY_SPEC_CTRL_2, &data);
+ if (ret_val)
+ return ret_val;
+
+ data &= ~GG82563_PSCR2_REVERSE_AUTO_NEG;
+ ret_val = e1e_wphy(hw, GG82563_PHY_SPEC_CTRL_2, data);
+ if (ret_val)
+ return ret_val;
+
+ reg = er32(CTRL_EXT);
+ reg &= ~E1000_CTRL_EXT_LINK_MODE_MASK;
+ ew32(CTRL_EXT, reg);
+
+ ret_val = e1e_rphy(hw, GG82563_PHY_PWR_MGMT_CTRL, &data);
+ if (ret_val)
+ return ret_val;
+
+ /* Do not init these registers when the HW is in IAMT mode, since the
+ * firmware will have already initialized them. We only initialize
+ * them if the HW is not in IAMT mode.
+ */
+ if (!hw->mac.ops.check_mng_mode(hw)) {
+ /* Enable Electrical Idle on the PHY */
+ data |= GG82563_PMCR_ENABLE_ELECTRICAL_IDLE;
+ ret_val = e1e_wphy(hw, GG82563_PHY_PWR_MGMT_CTRL, data);
+ if (ret_val)
+ return ret_val;
+
+ ret_val = e1e_rphy(hw, GG82563_PHY_KMRN_MODE_CTRL, &data);
+ if (ret_val)
+ return ret_val;
+
+ data &= ~GG82563_KMCR_PASS_FALSE_CARRIER;
+ ret_val = e1e_wphy(hw, GG82563_PHY_KMRN_MODE_CTRL, data);
+ if (ret_val)
+ return ret_val;
+ }
+
+ /* Workaround: Disable padding in Kumeran interface in the MAC
+ * and in the PHY to avoid CRC errors.
+ */
+ ret_val = e1e_rphy(hw, GG82563_PHY_INBAND_CTRL, &data);
+ if (ret_val)
+ return ret_val;
+
+ data |= GG82563_ICR_DIS_PADDING;
+ ret_val = e1e_wphy(hw, GG82563_PHY_INBAND_CTRL, data);
+ if (ret_val)
+ return ret_val;
+
+ return 0;
+}
+
+/**
+ * e1000_setup_copper_link_80003es2lan - Setup Copper Link for ESB2
+ * @hw: pointer to the HW structure
+ *
+ * Essentially a wrapper for setting up all things "copper" related.
+ * This is a function pointer entry point called by the mac module.
+ **/
+static s32 e1000_setup_copper_link_80003es2lan(struct e1000_hw *hw)
+{
+ u32 ctrl;
+ s32 ret_val;
+ u16 reg_data;
+
+ ctrl = er32(CTRL);
+ ctrl |= E1000_CTRL_SLU;
+ ctrl &= ~(E1000_CTRL_FRCSPD | E1000_CTRL_FRCDPX);
+ ew32(CTRL, ctrl);
+
+ /* Set the mac to wait the maximum time between each
+ * iteration and increase the max iterations when
+ * polling the phy; this fixes erroneous timeouts at 10Mbps.
+ */
+ ret_val = e1000_write_kmrn_reg_80003es2lan(hw, GG82563_REG(0x34, 4),
+ 0xFFFF);
+ if (ret_val)
+ return ret_val;
+ ret_val = e1000_read_kmrn_reg_80003es2lan(hw, GG82563_REG(0x34, 9),
+ &reg_data);
+ if (ret_val)
+ return ret_val;
+ reg_data |= 0x3F;
+ ret_val = e1000_write_kmrn_reg_80003es2lan(hw, GG82563_REG(0x34, 9),
+ reg_data);
+ if (ret_val)
+ return ret_val;
+ ret_val =
+ e1000_read_kmrn_reg_80003es2lan(hw,
+ E1000_KMRNCTRLSTA_OFFSET_INB_CTRL,
+ &reg_data);
+ if (ret_val)
+ return ret_val;
+ reg_data |= E1000_KMRNCTRLSTA_INB_CTRL_DIS_PADDING;
+ ret_val =
+ e1000_write_kmrn_reg_80003es2lan(hw,
+ E1000_KMRNCTRLSTA_OFFSET_INB_CTRL,
+ reg_data);
+ if (ret_val)
+ return ret_val;
+
+ ret_val = e1000_copper_link_setup_gg82563_80003es2lan(hw);
+ if (ret_val)
+ return ret_val;
+
+ return e1000e_setup_copper_link(hw);
+}
+
+/**
+ * e1000_cfg_on_link_up_80003es2lan - es2 link configuration after link-up
+ * @hw: pointer to the HW structure
+ *
+ * Configure the KMRN interface by applying last minute quirks for
+ * 10/100 operation.
+ **/
+static s32 e1000_cfg_on_link_up_80003es2lan(struct e1000_hw *hw)
+{
+ s32 ret_val = 0;
+ u16 speed;
+ u16 duplex;
+
+ if (hw->phy.media_type == e1000_media_type_copper) {
+ ret_val = e1000e_get_speed_and_duplex_copper(hw, &speed,
+ &duplex);
+ if (ret_val)
+ return ret_val;
+
+ if (speed == SPEED_1000)
+ ret_val = e1000_cfg_kmrn_1000_80003es2lan(hw);
+ else
+ ret_val = e1000_cfg_kmrn_10_100_80003es2lan(hw, duplex);
+ }
+
+ return ret_val;
+}
+
+/**
+ * e1000_cfg_kmrn_10_100_80003es2lan - Apply "quirks" for 10/100 operation
+ * @hw: pointer to the HW structure
+ * @duplex: current duplex setting
+ *
+ * Configure the KMRN interface by applying last minute quirks for
+ * 10/100 operation.
+ **/
+static s32 e1000_cfg_kmrn_10_100_80003es2lan(struct e1000_hw *hw, u16 duplex)
+{
+ s32 ret_val;
+ u32 tipg;
+ u32 i = 0;
+ u16 reg_data, reg_data2;
+
+ reg_data = E1000_KMRNCTRLSTA_HD_CTRL_10_100_DEFAULT;
+ ret_val =
+ e1000_write_kmrn_reg_80003es2lan(hw,
+ E1000_KMRNCTRLSTA_OFFSET_HD_CTRL,
+ reg_data);
+ if (ret_val)
+ return ret_val;
+
+ /* Configure Transmit Inter-Packet Gap */
+ tipg = er32(TIPG);
+ tipg &= ~E1000_TIPG_IPGT_MASK;
+ tipg |= DEFAULT_TIPG_IPGT_10_100_80003ES2LAN;
+ ew32(TIPG, tipg);
+
+ do {
+ ret_val = e1e_rphy(hw, GG82563_PHY_KMRN_MODE_CTRL, &reg_data);
+ if (ret_val)
+ return ret_val;
+
+ ret_val = e1e_rphy(hw, GG82563_PHY_KMRN_MODE_CTRL, &reg_data2);
+ if (ret_val)
+ return ret_val;
+ i++;
+ } while ((reg_data != reg_data2) && (i < GG82563_MAX_KMRN_RETRY));
+
+ if (duplex == HALF_DUPLEX)
+ reg_data |= GG82563_KMCR_PASS_FALSE_CARRIER;
+ else
+ reg_data &= ~GG82563_KMCR_PASS_FALSE_CARRIER;
+
+ return e1e_wphy(hw, GG82563_PHY_KMRN_MODE_CTRL, reg_data);
+}
+
+/**
+ * e1000_cfg_kmrn_1000_80003es2lan - Apply "quirks" for gigabit operation
+ * @hw: pointer to the HW structure
+ *
+ * Configure the KMRN interface by applying last minute quirks for
+ * gigabit operation.
+ **/
+static s32 e1000_cfg_kmrn_1000_80003es2lan(struct e1000_hw *hw)
+{
+ s32 ret_val;
+ u16 reg_data, reg_data2;
+ u32 tipg;
+ u32 i = 0;
+
+ reg_data = E1000_KMRNCTRLSTA_HD_CTRL_1000_DEFAULT;
+ ret_val =
+ e1000_write_kmrn_reg_80003es2lan(hw,
+ E1000_KMRNCTRLSTA_OFFSET_HD_CTRL,
+ reg_data);
+ if (ret_val)
+ return ret_val;
+
+ /* Configure Transmit Inter-Packet Gap */
+ tipg = er32(TIPG);
+ tipg &= ~E1000_TIPG_IPGT_MASK;
+ tipg |= DEFAULT_TIPG_IPGT_1000_80003ES2LAN;
+ ew32(TIPG, tipg);
+
+ do {
+ ret_val = e1e_rphy(hw, GG82563_PHY_KMRN_MODE_CTRL, &reg_data);
+ if (ret_val)
+ return ret_val;
+
+ ret_val = e1e_rphy(hw, GG82563_PHY_KMRN_MODE_CTRL, &reg_data2);
+ if (ret_val)
+ return ret_val;
+ i++;
+ } while ((reg_data != reg_data2) && (i < GG82563_MAX_KMRN_RETRY));
+
+ reg_data &= ~GG82563_KMCR_PASS_FALSE_CARRIER;
+
+ return e1e_wphy(hw, GG82563_PHY_KMRN_MODE_CTRL, reg_data);
+}
+
+/**
+ * e1000_read_kmrn_reg_80003es2lan - Read kumeran register
+ * @hw: pointer to the HW structure
+ * @offset: register offset to be read
+ * @data: pointer to the read data
+ *
+ * Acquire semaphore, then read the PHY register at offset
+ * using the kumeran interface. The information retrieved is stored in data.
+ * Release the semaphore before exiting.
+ **/
+static s32 e1000_read_kmrn_reg_80003es2lan(struct e1000_hw *hw, u32 offset,
+ u16 *data)
+{
+ u32 kmrnctrlsta;
+ s32 ret_val;
+
+ ret_val = e1000_acquire_mac_csr_80003es2lan(hw);
+ if (ret_val)
+ return ret_val;
+
+ kmrnctrlsta = ((offset << E1000_KMRNCTRLSTA_OFFSET_SHIFT) &
+ E1000_KMRNCTRLSTA_OFFSET) | E1000_KMRNCTRLSTA_REN;
+ ew32(KMRNCTRLSTA, kmrnctrlsta);
+ e1e_flush();
+
+ udelay(2);
+
+ kmrnctrlsta = er32(KMRNCTRLSTA);
+ *data = (u16)kmrnctrlsta;
+
+ e1000_release_mac_csr_80003es2lan(hw);
+
+ return ret_val;
+}
+
+/**
+ * e1000_write_kmrn_reg_80003es2lan - Write kumeran register
+ * @hw: pointer to the HW structure
+ * @offset: register offset to write to
+ * @data: data to write at register offset
+ *
+ * Acquire semaphore, then write the data to PHY register
+ * at the offset using the kumeran interface. Release semaphore
+ * before exiting.
+ **/
+static s32 e1000_write_kmrn_reg_80003es2lan(struct e1000_hw *hw, u32 offset,
+ u16 data)
+{
+ u32 kmrnctrlsta;
+ s32 ret_val;
+
+ ret_val = e1000_acquire_mac_csr_80003es2lan(hw);
+ if (ret_val)
+ return ret_val;
+
+ kmrnctrlsta = ((offset << E1000_KMRNCTRLSTA_OFFSET_SHIFT) &
+ E1000_KMRNCTRLSTA_OFFSET) | data;
+ ew32(KMRNCTRLSTA, kmrnctrlsta);
+ e1e_flush();
+
+ udelay(2);
+
+ e1000_release_mac_csr_80003es2lan(hw);
+
+ return ret_val;
+}
+
+/**
+ * e1000_read_mac_addr_80003es2lan - Read device MAC address
+ * @hw: pointer to the HW structure
+ **/
+static s32 e1000_read_mac_addr_80003es2lan(struct e1000_hw *hw)
+{
+ s32 ret_val;
+
+ /* If there's an alternate MAC address place it in RAR0
+ * so that it will override the Si installed default perm
+ * address.
+ */
+ ret_val = e1000_check_alt_mac_addr_generic(hw);
+ if (ret_val)
+ return ret_val;
+
+ return e1000_read_mac_addr_generic(hw);
+}
+
+/**
+ * e1000_power_down_phy_copper_80003es2lan - Remove link during PHY power down
+ * @hw: pointer to the HW structure
+ *
+ * In the case of a PHY power down to save power, or to turn off link during a
+ * driver unload, or wake on lan is not enabled, remove the link.
+ **/
+static void e1000_power_down_phy_copper_80003es2lan(struct e1000_hw *hw)
+{
+ /* If the management interface is not enabled, then power down */
+ if (!(hw->mac.ops.check_mng_mode(hw) ||
+ hw->phy.ops.check_reset_block(hw)))
+ e1000_power_down_phy_copper(hw);
+}
+
+/**
+ * e1000_clear_hw_cntrs_80003es2lan - Clear device specific hardware counters
+ * @hw: pointer to the HW structure
+ *
+ * Clears the hardware counters by reading the counter registers.
+ **/
+static void e1000_clear_hw_cntrs_80003es2lan(struct e1000_hw *hw)
+{
+ e1000e_clear_hw_cntrs_base(hw);
+
+ er32(PRC64);
+ er32(PRC127);
+ er32(PRC255);
+ er32(PRC511);
+ er32(PRC1023);
+ er32(PRC1522);
+ er32(PTC64);
+ er32(PTC127);
+ er32(PTC255);
+ er32(PTC511);
+ er32(PTC1023);
+ er32(PTC1522);
+
+ er32(ALGNERRC);
+ er32(RXERRC);
+ er32(TNCRS);
+ er32(CEXTERR);
+ er32(TSCTC);
+ er32(TSCTFC);
+
+ er32(MGTPRC);
+ er32(MGTPDC);
+ er32(MGTPTC);
+
+ er32(IAC);
+ er32(ICRXOC);
+
+ er32(ICRXPTC);
+ er32(ICRXATC);
+ er32(ICTXPTC);
+ er32(ICTXATC);
+ er32(ICTXQEC);
+ er32(ICTXQMTC);
+ er32(ICRXDMTC);
+}
+
+static const struct e1000_mac_operations es2_mac_ops = {
+ .read_mac_addr = e1000_read_mac_addr_80003es2lan,
+ .id_led_init = e1000e_id_led_init_generic,
+ .blink_led = e1000e_blink_led_generic,
+ .check_mng_mode = e1000e_check_mng_mode_generic,
+ /* check_for_link dependent on media type */
+ .cleanup_led = e1000e_cleanup_led_generic,
+ .clear_hw_cntrs = e1000_clear_hw_cntrs_80003es2lan,
+ .get_bus_info = e1000e_get_bus_info_pcie,
+ .set_lan_id = e1000_set_lan_id_multi_port_pcie,
+ .get_link_up_info = e1000_get_link_up_info_80003es2lan,
+ .led_on = e1000e_led_on_generic,
+ .led_off = e1000e_led_off_generic,
+ .update_mc_addr_list = e1000e_update_mc_addr_list_generic,
+ .write_vfta = e1000_write_vfta_generic,
+ .clear_vfta = e1000_clear_vfta_generic,
+ .reset_hw = e1000_reset_hw_80003es2lan,
+ .init_hw = e1000_init_hw_80003es2lan,
+ .setup_link = e1000e_setup_link_generic,
+ /* setup_physical_interface dependent on media type */
+ .setup_led = e1000e_setup_led_generic,
+ .config_collision_dist = e1000e_config_collision_dist_generic,
+ .rar_set = e1000e_rar_set_generic,
+ .rar_get_count = e1000e_rar_get_count_generic,
+ .validate_mdi_setting = e1000e_validate_mdi_setting_generic,
+};
+
+static const struct e1000_phy_operations es2_phy_ops = {
+ .acquire = e1000_acquire_phy_80003es2lan,
+ .check_polarity = e1000_check_polarity_m88,
+ .check_reset_block = e1000e_check_reset_block_generic,
+ .commit = e1000e_phy_sw_reset,
+ .force_speed_duplex = e1000_phy_force_speed_duplex_80003es2lan,
+ .get_cfg_done = e1000_get_cfg_done_80003es2lan,
+ .get_cable_length = e1000_get_cable_length_80003es2lan,
+ .get_info = e1000e_get_phy_info_m88,
+ .read_reg = e1000_read_phy_reg_gg82563_80003es2lan,
+ .release = e1000_release_phy_80003es2lan,
+ .reset = e1000e_phy_hw_reset_generic,
+ .set_d0_lplu_state = NULL,
+ .set_d3_lplu_state = e1000e_set_d3_lplu_state,
+ .write_reg = e1000_write_phy_reg_gg82563_80003es2lan,
+ .cfg_on_link_up = e1000_cfg_on_link_up_80003es2lan,
+};
+
+static const struct e1000_nvm_operations es2_nvm_ops = {
+ .acquire = e1000_acquire_nvm_80003es2lan,
+ .read = e1000e_read_nvm_eerd,
+ .release = e1000_release_nvm_80003es2lan,
+ .reload = e1000e_reload_nvm_generic,
+ .update = e1000e_update_nvm_checksum_generic,
+ .valid_led_default = e1000e_valid_led_default,
+ .validate = e1000e_validate_nvm_checksum_generic,
+ .write = e1000_write_nvm_80003es2lan,
+};
+
+const struct e1000_info e1000_es2_info = {
+ .mac = e1000_80003es2lan,
+ .flags = FLAG_HAS_HW_VLAN_FILTER
+ | FLAG_HAS_JUMBO_FRAMES
+ | FLAG_HAS_WOL
+ | FLAG_APME_IN_CTRL3
+#ifndef HAVE_NDO_SET_FEATURES
+ | FLAG_RX_CSUM_ENABLED
+#endif
+ | FLAG_HAS_CTRLEXT_ON_LOAD
+ | FLAG_RX_NEEDS_RESTART /* errata */
+ | FLAG_TARC_SET_BIT_ZERO /* errata */
+ | FLAG_APME_CHECK_PORT_B
+ | FLAG_DISABLE_FC_PAUSE_TIME, /* errata */
+ .flags2 = FLAG2_DMA_BURST,
+ .pba = 38,
+ .max_hw_frame_size = DEFAULT_JUMBO,
+ .get_variants = e1000_get_variants_80003es2lan,
+ .mac_ops = &es2_mac_ops,
+ .phy_ops = &es2_phy_ops,
+ .nvm_ops = &es2_nvm_ops,
+};
diff --git a/src/80003es2lan.h b/src/80003es2lan.h
new file mode 100644
index 0000000..54f2890
--- /dev/null
+++ b/src/80003es2lan.h
@@ -0,0 +1,70 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/* Copyright(c) 1999 - 2020 Intel Corporation. */
+
+#ifndef _E1000E_80003ES2LAN_H_
+#define _E1000E_80003ES2LAN_H_
+
+#define E1000_KMRNCTRLSTA_OFFSET_FIFO_CTRL 0x00
+#define E1000_KMRNCTRLSTA_OFFSET_INB_CTRL 0x02
+#define E1000_KMRNCTRLSTA_OFFSET_HD_CTRL 0x10
+#define E1000_KMRNCTRLSTA_OFFSET_MAC2PHY_OPMODE 0x1F
+
+#define E1000_KMRNCTRLSTA_FIFO_CTRL_RX_BYPASS 0x0008
+#define E1000_KMRNCTRLSTA_FIFO_CTRL_TX_BYPASS 0x0800
+#define E1000_KMRNCTRLSTA_INB_CTRL_DIS_PADDING 0x0010
+
+#define E1000_KMRNCTRLSTA_HD_CTRL_10_100_DEFAULT 0x0004
+#define E1000_KMRNCTRLSTA_HD_CTRL_1000_DEFAULT 0x0000
+#define E1000_KMRNCTRLSTA_OPMODE_E_IDLE 0x2000
+
+#define E1000_KMRNCTRLSTA_OPMODE_MASK 0x000C
+#define E1000_KMRNCTRLSTA_OPMODE_INBAND_MDIO 0x0004
+
+#define E1000_TCTL_EXT_GCEX_MASK 0x000FFC00 /* Gig Carry Extend Padding */
+#define DEFAULT_TCTL_EXT_GCEX_80003ES2LAN 0x00010000
+
+#define DEFAULT_TIPG_IPGT_1000_80003ES2LAN 0x8
+#define DEFAULT_TIPG_IPGT_10_100_80003ES2LAN 0x9
+
+/* GG82563 PHY Specific Status Register (Page 0, Register 16 */
+#define GG82563_PSCR_POLARITY_REVERSAL_DISABLE 0x0002 /* 1=Reversal Dis */
+#define GG82563_PSCR_CROSSOVER_MODE_MASK 0x0060
+#define GG82563_PSCR_CROSSOVER_MODE_MDI 0x0000 /* 00=Manual MDI */
+#define GG82563_PSCR_CROSSOVER_MODE_MDIX 0x0020 /* 01=Manual MDIX */
+#define GG82563_PSCR_CROSSOVER_MODE_AUTO 0x0060 /* 11=Auto crossover */
+
+/* PHY Specific Control Register 2 (Page 0, Register 26) */
+#define GG82563_PSCR2_REVERSE_AUTO_NEG 0x2000 /* 1=Reverse Auto-Neg */
+
+/* MAC Specific Control Register (Page 2, Register 21) */
+/* Tx clock speed for Link Down and 1000BASE-T for the following speeds */
+#define GG82563_MSCR_TX_CLK_MASK 0x0007
+#define GG82563_MSCR_TX_CLK_10MBPS_2_5 0x0004
+#define GG82563_MSCR_TX_CLK_100MBPS_25 0x0005
+#define GG82563_MSCR_TX_CLK_1000MBPS_25 0x0007
+
+#define GG82563_MSCR_ASSERT_CRS_ON_TX 0x0010 /* 1=Assert */
+
+/* DSP Distance Register (Page 5, Register 26)
+ * 0 = <50M
+ * 1 = 50-80M
+ * 2 = 80-100M
+ * 3 = 110-140M
+ * 4 = >140M
+ */
+#define GG82563_DSPD_CABLE_LENGTH 0x0007
+
+/* Kumeran Mode Control Register (Page 193, Register 16) */
+#define GG82563_KMCR_PASS_FALSE_CARRIER 0x0800
+
+/* Max number of times Kumeran read/write should be validated */
+#define GG82563_MAX_KMRN_RETRY 0x5
+
+/* Power Management Control Register (Page 193, Register 20) */
+/* 1=Enable SERDES Electrical Idle */
+#define GG82563_PMCR_ENABLE_ELECTRICAL_IDLE 0x0001
+
+/* In-Band Control Register (Page 194, Register 18) */
+#define GG82563_ICR_DIS_PADDING 0x0010 /* Disable Padding */
+
+#endif
diff --git a/src/82571.c b/src/82571.c
new file mode 100644
index 0000000..714e050
--- /dev/null
+++ b/src/82571.c
@@ -0,0 +1,2079 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright(c) 1999 - 2020 Intel Corporation. */
+
+/* 82571EB Gigabit Ethernet Controller
+ * 82571EB Gigabit Ethernet Controller (Copper)
+ * 82571EB Gigabit Ethernet Controller (Fiber)
+ * 82571EB Dual Port Gigabit Mezzanine Adapter
+ * 82571EB Quad Port Gigabit Mezzanine Adapter
+ * 82571PT Gigabit PT Quad Port Server ExpressModule
+ * 82572EI Gigabit Ethernet Controller (Copper)
+ * 82572EI Gigabit Ethernet Controller (Fiber)
+ * 82572EI Gigabit Ethernet Controller
+ * 82573V Gigabit Ethernet Controller (Copper)
+ * 82573E Gigabit Ethernet Controller (Copper)
+ * 82573L Gigabit Ethernet Controller
+ * 82574L Gigabit Network Connection
+ * 82583V Gigabit Network Connection
+ */
+
+#include "e1000.h"
+
+static s32 e1000_get_phy_id_82571(struct e1000_hw *hw);
+static s32 e1000_setup_copper_link_82571(struct e1000_hw *hw);
+static s32 e1000_setup_fiber_serdes_link_82571(struct e1000_hw *hw);
+static s32 e1000_check_for_serdes_link_82571(struct e1000_hw *hw);
+static s32 e1000_write_nvm_eewr_82571(struct e1000_hw *hw, u16 offset,
+ u16 words, u16 *data);
+static s32 e1000_fix_nvm_checksum_82571(struct e1000_hw *hw);
+static void e1000_initialize_hw_bits_82571(struct e1000_hw *hw);
+static void e1000_clear_hw_cntrs_82571(struct e1000_hw *hw);
+static bool e1000_check_mng_mode_82574(struct e1000_hw *hw);
+static s32 e1000_led_on_82574(struct e1000_hw *hw);
+static void e1000_put_hw_semaphore_82571(struct e1000_hw *hw);
+static void e1000_power_down_phy_copper_82571(struct e1000_hw *hw);
+static void e1000_put_hw_semaphore_82573(struct e1000_hw *hw);
+static s32 e1000_get_hw_semaphore_82574(struct e1000_hw *hw);
+static void e1000_put_hw_semaphore_82574(struct e1000_hw *hw);
+static s32 e1000_set_d0_lplu_state_82574(struct e1000_hw *hw, bool active);
+static s32 e1000_set_d3_lplu_state_82574(struct e1000_hw *hw, bool active);
+
+/**
+ * e1000_init_phy_params_82571 - Init PHY func ptrs.
+ * @hw: pointer to the HW structure
+ **/
+static s32 e1000_init_phy_params_82571(struct e1000_hw *hw)
+{
+ struct e1000_phy_info *phy = &hw->phy;
+ s32 ret_val;
+
+ if (hw->phy.media_type != e1000_media_type_copper) {
+ phy->type = e1000_phy_none;
+ return 0;
+ }
+
+ phy->addr = 1;
+ phy->autoneg_mask = AUTONEG_ADVERTISE_SPEED_DEFAULT;
+ phy->reset_delay_us = 100;
+
+ phy->ops.power_up = e1000_power_up_phy_copper;
+ phy->ops.power_down = e1000_power_down_phy_copper_82571;
+
+ switch (hw->mac.type) {
+ case e1000_82571:
+ case e1000_82572:
+ phy->type = e1000_phy_igp_2;
+ break;
+ case e1000_82573:
+ phy->type = e1000_phy_m88;
+ break;
+ case e1000_82574:
+ case e1000_82583:
+ phy->type = e1000_phy_bm;
+ phy->ops.acquire = e1000_get_hw_semaphore_82574;
+ phy->ops.release = e1000_put_hw_semaphore_82574;
+ phy->ops.set_d0_lplu_state = e1000_set_d0_lplu_state_82574;
+ phy->ops.set_d3_lplu_state = e1000_set_d3_lplu_state_82574;
+ break;
+ default:
+ return -E1000_ERR_PHY;
+ break;
+ }
+
+ /* This can only be done after all function pointers are setup. */
+ ret_val = e1000_get_phy_id_82571(hw);
+ if (ret_val) {
+ e_dbg("Error getting PHY ID\n");
+ return ret_val;
+ }
+
+ /* Verify phy id */
+ switch (hw->mac.type) {
+ case e1000_82571:
+ case e1000_82572:
+ if (phy->id != IGP01E1000_I_PHY_ID)
+ ret_val = -E1000_ERR_PHY;
+ break;
+ case e1000_82573:
+ if (phy->id != M88E1111_I_PHY_ID)
+ ret_val = -E1000_ERR_PHY;
+ break;
+ case e1000_82574:
+ case e1000_82583:
+ if (phy->id != BME1000_E_PHY_ID_R2)
+ ret_val = -E1000_ERR_PHY;
+ break;
+ default:
+ ret_val = -E1000_ERR_PHY;
+ break;
+ }
+
+ if (ret_val)
+ e_dbg("PHY ID unknown: type = 0x%08x\n", phy->id);
+
+ return ret_val;
+}
+
+/**
+ * e1000_init_nvm_params_82571 - Init NVM func ptrs.
+ * @hw: pointer to the HW structure
+ **/
+static s32 e1000_init_nvm_params_82571(struct e1000_hw *hw)
+{
+ struct e1000_nvm_info *nvm = &hw->nvm;
+ u32 eecd = er32(EECD);
+ u16 size;
+
+ nvm->opcode_bits = 8;
+ nvm->delay_usec = 1;
+ switch (nvm->override) {
+ case e1000_nvm_override_spi_large:
+ nvm->page_size = 32;
+ nvm->address_bits = 16;
+ break;
+ case e1000_nvm_override_spi_small:
+ nvm->page_size = 8;
+ nvm->address_bits = 8;
+ break;
+ default:
+ nvm->page_size = eecd & E1000_EECD_ADDR_BITS ? 32 : 8;
+ nvm->address_bits = eecd & E1000_EECD_ADDR_BITS ? 16 : 8;
+ break;
+ }
+
+ switch (hw->mac.type) {
+ case e1000_82573:
+ case e1000_82574:
+ case e1000_82583:
+ if (((eecd >> 15) & 0x3) == 0x3) {
+ nvm->type = e1000_nvm_flash_hw;
+ nvm->word_size = 2048;
+ /* Autonomous Flash update bit must be cleared due
+ * to Flash update issue.
+ */
+ eecd &= ~E1000_EECD_AUPDEN;
+ ew32(EECD, eecd);
+ break;
+ }
+ /* Fall Through */
+ default:
+ nvm->type = e1000_nvm_eeprom_spi;
+ size = (u16)((eecd & E1000_EECD_SIZE_EX_MASK) >>
+ E1000_EECD_SIZE_EX_SHIFT);
+ /* Added to a constant, "size" becomes the left-shift value
+ * for setting word_size.
+ */
+ size += NVM_WORD_SIZE_BASE_SHIFT;
+
+ /* EEPROM access above 16k is unsupported */
+ if (size > 14)
+ size = 14;
+ nvm->word_size = 1 << size;
+ break;
+ }
+
+ /* Function Pointers */
+ switch (hw->mac.type) {
+ case e1000_82574:
+ case e1000_82583:
+ nvm->ops.acquire = e1000_get_hw_semaphore_82574;
+ nvm->ops.release = e1000_put_hw_semaphore_82574;
+ break;
+ default:
+ break;
+ }
+
+ return 0;
+}
+
+/**
+ * e1000_init_mac_params_82571 - Init MAC func ptrs.
+ * @hw: pointer to the HW structure
+ **/
+static s32 e1000_init_mac_params_82571(struct e1000_hw *hw)
+{
+ struct e1000_mac_info *mac = &hw->mac;
+ u32 swsm = 0;
+ u32 swsm2 = 0;
+ bool force_clear_smbi = false;
+
+ /* Set media type and media-dependent function pointers */
+ switch (hw->adapter->pdev->device) {
+ case E1000_DEV_ID_82571EB_FIBER:
+ case E1000_DEV_ID_82572EI_FIBER:
+ case E1000_DEV_ID_82571EB_QUAD_FIBER:
+ hw->phy.media_type = e1000_media_type_fiber;
+ mac->ops.setup_physical_interface =
+ e1000_setup_fiber_serdes_link_82571;
+ mac->ops.check_for_link = e1000e_check_for_fiber_link;
+ mac->ops.get_link_up_info =
+ e1000e_get_speed_and_duplex_fiber_serdes;
+ break;
+ case E1000_DEV_ID_82571EB_SERDES:
+ case E1000_DEV_ID_82571EB_SERDES_DUAL:
+ case E1000_DEV_ID_82571EB_SERDES_QUAD:
+ case E1000_DEV_ID_82572EI_SERDES:
+ hw->phy.media_type = e1000_media_type_internal_serdes;
+ mac->ops.setup_physical_interface =
+ e1000_setup_fiber_serdes_link_82571;
+ mac->ops.check_for_link = e1000_check_for_serdes_link_82571;
+ mac->ops.get_link_up_info =
+ e1000e_get_speed_and_duplex_fiber_serdes;
+ break;
+ default:
+ hw->phy.media_type = e1000_media_type_copper;
+ mac->ops.setup_physical_interface =
+ e1000_setup_copper_link_82571;
+ mac->ops.check_for_link = e1000e_check_for_copper_link;
+ mac->ops.get_link_up_info = e1000e_get_speed_and_duplex_copper;
+ break;
+ }
+
+ /* Set mta register count */
+ mac->mta_reg_count = 128;
+ /* Set rar entry count */
+ mac->rar_entry_count = E1000_RAR_ENTRIES;
+ /* Adaptive IFS supported */
+ mac->adaptive_ifs = true;
+
+ /* MAC-specific function pointers */
+ switch (hw->mac.type) {
+ case e1000_82573:
+ mac->ops.set_lan_id = e1000_set_lan_id_single_port;
+ mac->ops.check_mng_mode = e1000e_check_mng_mode_generic;
+ mac->ops.led_on = e1000e_led_on_generic;
+ mac->ops.blink_led = e1000e_blink_led_generic;
+
+ /* FWSM register */
+ mac->has_fwsm = true;
+ /* ARC supported; valid only if manageability features are
+ * enabled.
+ */
+ mac->arc_subsystem_valid = !!(er32(FWSM) &
+ E1000_FWSM_MODE_MASK);
+ break;
+ case e1000_82574:
+ case e1000_82583:
+ mac->ops.set_lan_id = e1000_set_lan_id_single_port;
+ mac->ops.check_mng_mode = e1000_check_mng_mode_82574;
+ mac->ops.led_on = e1000_led_on_82574;
+ break;
+ default:
+ mac->ops.check_mng_mode = e1000e_check_mng_mode_generic;
+ mac->ops.led_on = e1000e_led_on_generic;
+ mac->ops.blink_led = e1000e_blink_led_generic;
+
+ /* FWSM register */
+ mac->has_fwsm = true;
+ break;
+ }
+
+ /* Ensure that the inter-port SWSM.SMBI lock bit is clear before
+ * first NVM or PHY access. This should be done for single-port
+ * devices, and for one port only on dual-port devices so that
+ * for those devices we can still use the SMBI lock to synchronize
+ * inter-port accesses to the PHY & NVM.
+ */
+ switch (hw->mac.type) {
+ case e1000_82571:
+ case e1000_82572:
+ swsm2 = er32(SWSM2);
+
+ if (!(swsm2 & E1000_SWSM2_LOCK)) {
+ /* Only do this for the first interface on this card */
+ ew32(SWSM2, swsm2 | E1000_SWSM2_LOCK);
+ force_clear_smbi = true;
+ } else {
+ force_clear_smbi = false;
+ }
+ break;
+ default:
+ force_clear_smbi = true;
+ break;
+ }
+
+ if (force_clear_smbi) {
+ /* Make sure SWSM.SMBI is clear */
+ swsm = er32(SWSM);
+ if (swsm & E1000_SWSM_SMBI) {
+ /* This bit should not be set on a first interface, and
+ * indicates that the bootagent or EFI code has
+ * improperly left this bit enabled
+ */
+ e_dbg("Please update your 82571 Bootagent\n");
+ }
+ ew32(SWSM, swsm & ~E1000_SWSM_SMBI);
+ }
+
+ /* Initialize device specific counter of SMBI acquisition timeouts. */
+ hw->dev_spec.e82571.smb_counter = 0;
+
+ return 0;
+}
+
+static s32 e1000_get_variants_82571(struct e1000_adapter *adapter)
+{
+ struct e1000_hw *hw = &adapter->hw;
+ static int global_quad_port_a; /* global port a indication */
+ struct pci_dev *pdev = adapter->pdev;
+ int is_port_b = er32(STATUS) & E1000_STATUS_FUNC_1;
+ s32 rc;
+
+ rc = e1000_init_mac_params_82571(hw);
+ if (rc)
+ return rc;
+
+ rc = e1000_init_nvm_params_82571(hw);
+ if (rc)
+ return rc;
+
+ rc = e1000_init_phy_params_82571(hw);
+ if (rc)
+ return rc;
+
+ /* tag quad port adapters first, it's used below */
+ switch (pdev->device) {
+ case E1000_DEV_ID_82571EB_QUAD_COPPER:
+ case E1000_DEV_ID_82571EB_QUAD_FIBER:
+ case E1000_DEV_ID_82571EB_QUAD_COPPER_LP:
+ case E1000_DEV_ID_82571PT_QUAD_COPPER:
+ adapter->flags |= FLAG_IS_QUAD_PORT;
+ /* mark the first port */
+ if (global_quad_port_a == 0)
+ adapter->flags |= FLAG_IS_QUAD_PORT_A;
+ /* Reset for multiple quad port adapters */
+ global_quad_port_a++;
+ if (global_quad_port_a == 4)
+ global_quad_port_a = 0;
+ break;
+ default:
+ break;
+ }
+
+ switch (adapter->hw.mac.type) {
+ case e1000_82571:
+ /* these dual ports don't have WoL on port B at all */
+ if (((pdev->device == E1000_DEV_ID_82571EB_FIBER) ||
+ (pdev->device == E1000_DEV_ID_82571EB_SERDES) ||
+ (pdev->device == E1000_DEV_ID_82571EB_COPPER)) &&
+ (is_port_b))
+ adapter->flags &= ~FLAG_HAS_WOL;
+ /* quad ports only support WoL on port A */
+ if (adapter->flags & FLAG_IS_QUAD_PORT &&
+ (!(adapter->flags & FLAG_IS_QUAD_PORT_A)))
+ adapter->flags &= ~FLAG_HAS_WOL;
+ /* Does not support WoL on any port */
+ if (pdev->device == E1000_DEV_ID_82571EB_SERDES_QUAD)
+ adapter->flags &= ~FLAG_HAS_WOL;
+ break;
+ case e1000_82573:
+ if (pdev->device == E1000_DEV_ID_82573L) {
+ adapter->flags |= FLAG_HAS_JUMBO_FRAMES;
+ adapter->max_hw_frame_size = DEFAULT_JUMBO;
+ }
+ break;
+ default:
+ break;
+ }
+
+ return 0;
+}
+
+/**
+ * e1000_get_phy_id_82571 - Retrieve the PHY ID and revision
+ * @hw: pointer to the HW structure
+ *
+ * Reads the PHY registers and stores the PHY ID and possibly the PHY
+ * revision in the hardware structure.
+ **/
+static s32 e1000_get_phy_id_82571(struct e1000_hw *hw)
+{
+ struct e1000_phy_info *phy = &hw->phy;
+ s32 ret_val;
+ u16 phy_id = 0;
+
+ switch (hw->mac.type) {
+ case e1000_82571:
+ case e1000_82572:
+ /* The 82571 firmware may still be configuring the PHY.
+ * In this case, we cannot access the PHY until the
+ * configuration is done. So we explicitly set the
+ * PHY ID.
+ */
+ phy->id = IGP01E1000_I_PHY_ID;
+ break;
+ case e1000_82573:
+ return e1000e_get_phy_id(hw);
+ break;
+ case e1000_82574:
+ case e1000_82583:
+ ret_val = e1e_rphy(hw, MII_PHYSID1, &phy_id);
+ if (ret_val)
+ return ret_val;
+
+ phy->id = (u32)(phy_id << 16);
+ usleep_range(20, 40);
+ ret_val = e1e_rphy(hw, MII_PHYSID2, &phy_id);
+ if (ret_val)
+ return ret_val;
+
+ phy->id |= (u32)(phy_id);
+ phy->revision = (u32)(phy_id & ~PHY_REVISION_MASK);
+ break;
+ default:
+ return -E1000_ERR_PHY;
+ break;
+ }
+
+ return 0;
+}
+
+/**
+ * e1000_get_hw_semaphore_82571 - Acquire hardware semaphore
+ * @hw: pointer to the HW structure
+ *
+ * Acquire the HW semaphore to access the PHY or NVM
+ **/
+static s32 e1000_get_hw_semaphore_82571(struct e1000_hw *hw)
+{
+ u32 swsm;
+ s32 sw_timeout = hw->nvm.word_size + 1;
+ s32 fw_timeout = hw->nvm.word_size + 1;
+ s32 i = 0;
+
+ /* If we have timedout 3 times on trying to acquire
+ * the inter-port SMBI semaphore, there is old code
+ * operating on the other port, and it is not
+ * releasing SMBI. Modify the number of times that
+ * we try for the semaphore to interwork with this
+ * older code.
+ */
+ if (hw->dev_spec.e82571.smb_counter > 2)
+ sw_timeout = 1;
+
+ /* Get the SW semaphore */
+ while (i < sw_timeout) {
+ swsm = er32(SWSM);
+ if (!(swsm & E1000_SWSM_SMBI))
+ break;
+
+ usleep_range(50, 100);
+ i++;
+ }
+
+ if (i == sw_timeout) {
+ e_dbg("Driver can't access device - SMBI bit is set.\n");
+ hw->dev_spec.e82571.smb_counter++;
+ }
+ /* Get the FW semaphore. */
+ for (i = 0; i < fw_timeout; i++) {
+ swsm = er32(SWSM);
+ ew32(SWSM, swsm | E1000_SWSM_SWESMBI);
+
+ /* Semaphore acquired if bit latched */
+ if (er32(SWSM) & E1000_SWSM_SWESMBI)
+ break;
+
+ usleep_range(50, 100);
+ }
+
+ if (i == fw_timeout) {
+ /* Release semaphores */
+ e1000_put_hw_semaphore_82571(hw);
+ e_dbg("Driver can't access the NVM\n");
+ return -E1000_ERR_NVM;
+ }
+
+ return 0;
+}
+
+/**
+ * e1000_put_hw_semaphore_82571 - Release hardware semaphore
+ * @hw: pointer to the HW structure
+ *
+ * Release hardware semaphore used to access the PHY or NVM
+ **/
+static void e1000_put_hw_semaphore_82571(struct e1000_hw *hw)
+{
+ u32 swsm;
+
+ swsm = er32(SWSM);
+
+ swsm &= ~(E1000_SWSM_SMBI | E1000_SWSM_SWESMBI);
+
+ ew32(SWSM, swsm);
+}
+
+/**
+ * e1000_get_hw_semaphore_82573 - Acquire hardware semaphore
+ * @hw: pointer to the HW structure
+ *
+ * Acquire the HW semaphore during reset.
+ *
+ **/
+static s32 e1000_get_hw_semaphore_82573(struct e1000_hw *hw)
+{
+ u32 extcnf_ctrl;
+ s32 i = 0;
+
+ extcnf_ctrl = er32(EXTCNF_CTRL);
+ do {
+ extcnf_ctrl |= E1000_EXTCNF_CTRL_MDIO_SW_OWNERSHIP;
+ ew32(EXTCNF_CTRL, extcnf_ctrl);
+ extcnf_ctrl = er32(EXTCNF_CTRL);
+
+ if (extcnf_ctrl & E1000_EXTCNF_CTRL_MDIO_SW_OWNERSHIP)
+ break;
+
+ usleep_range(2000, 4000);
+ i++;
+ } while (i < MDIO_OWNERSHIP_TIMEOUT);
+
+ if (i == MDIO_OWNERSHIP_TIMEOUT) {
+ /* Release semaphores */
+ e1000_put_hw_semaphore_82573(hw);
+ e_dbg("Driver can't access the PHY\n");
+ return -E1000_ERR_PHY;
+ }
+
+ return 0;
+}
+
+/**
+ * e1000_put_hw_semaphore_82573 - Release hardware semaphore
+ * @hw: pointer to the HW structure
+ *
+ * Release hardware semaphore used during reset.
+ *
+ **/
+static void e1000_put_hw_semaphore_82573(struct e1000_hw *hw)
+{
+ u32 extcnf_ctrl;
+
+ extcnf_ctrl = er32(EXTCNF_CTRL);
+ extcnf_ctrl &= ~E1000_EXTCNF_CTRL_MDIO_SW_OWNERSHIP;
+ ew32(EXTCNF_CTRL, extcnf_ctrl);
+}
+
+static DEFINE_MUTEX(swflag_mutex);
+
+/**
+ * e1000_get_hw_semaphore_82574 - Acquire hardware semaphore
+ * @hw: pointer to the HW structure
+ *
+ * Acquire the HW semaphore to access the PHY or NVM.
+ *
+ **/
+static s32 e1000_get_hw_semaphore_82574(struct e1000_hw *hw)
+{
+ s32 ret_val;
+
+ mutex_lock(&swflag_mutex);
+ ret_val = e1000_get_hw_semaphore_82573(hw);
+ if (ret_val)
+ mutex_unlock(&swflag_mutex);
+ return ret_val;
+}
+
+/**
+ * e1000_put_hw_semaphore_82574 - Release hardware semaphore
+ * @hw: pointer to the HW structure
+ *
+ * Release hardware semaphore used to access the PHY or NVM
+ *
+ **/
+static void e1000_put_hw_semaphore_82574(struct e1000_hw *hw)
+{
+ e1000_put_hw_semaphore_82573(hw);
+ mutex_unlock(&swflag_mutex);
+}
+
+/**
+ * e1000_set_d0_lplu_state_82574 - Set Low Power Linkup D0 state
+ * @hw: pointer to the HW structure
+ * @active: true to enable LPLU, false to disable
+ *
+ * Sets the LPLU D0 state according to the active flag.
+ * LPLU will not be activated unless the
+ * device autonegotiation advertisement meets standards of
+ * either 10 or 10/100 or 10/100/1000 at all duplexes.
+ * This is a function pointer entry point only called by
+ * PHY setup routines.
+ **/
+static s32 e1000_set_d0_lplu_state_82574(struct e1000_hw *hw, bool active)
+{
+ u32 data = er32(POEMB);
+
+ if (active)
+ data |= E1000_PHY_CTRL_D0A_LPLU;
+ else
+ data &= ~E1000_PHY_CTRL_D0A_LPLU;
+
+ ew32(POEMB, data);
+ return 0;
+}
+
+/**
+ * e1000_set_d3_lplu_state_82574 - Sets low power link up state for D3
+ * @hw: pointer to the HW structure
+ * @active: boolean used to enable/disable lplu
+ *
+ * The low power link up (lplu) state is set to the power management level D3
+ * when active is true, else clear lplu for D3. LPLU
+ * is used during Dx states where the power conservation is most important.
+ * During driver activity, SmartSpeed should be enabled so performance is
+ * maintained.
+ **/
+static s32 e1000_set_d3_lplu_state_82574(struct e1000_hw *hw, bool active)
+{
+ u32 data = er32(POEMB);
+
+ if (!active) {
+ data &= ~E1000_PHY_CTRL_NOND0A_LPLU;
+ } else if ((hw->phy.autoneg_advertised == E1000_ALL_SPEED_DUPLEX) ||
+ (hw->phy.autoneg_advertised == E1000_ALL_NOT_GIG) ||
+ (hw->phy.autoneg_advertised == E1000_ALL_10_SPEED)) {
+ data |= E1000_PHY_CTRL_NOND0A_LPLU;
+ }
+
+ ew32(POEMB, data);
+ return 0;
+}
+
+/**
+ * e1000_acquire_nvm_82571 - Request for access to the EEPROM
+ * @hw: pointer to the HW structure
+ *
+ * To gain access to the EEPROM, first we must obtain a hardware semaphore.
+ * Then for non-82573 hardware, set the EEPROM access request bit and wait
+ * for EEPROM access grant bit. If the access grant bit is not set, release
+ * hardware semaphore.
+ **/
+static s32 e1000_acquire_nvm_82571(struct e1000_hw *hw)
+{
+ s32 ret_val;
+
+ ret_val = e1000_get_hw_semaphore_82571(hw);
+ if (ret_val)
+ return ret_val;
+
+ switch (hw->mac.type) {
+ case e1000_82573:
+ break;
+ default:
+ ret_val = e1000e_acquire_nvm(hw);
+ break;
+ }
+
+ if (ret_val)
+ e1000_put_hw_semaphore_82571(hw);
+
+ return ret_val;
+}
+
+/**
+ * e1000_release_nvm_82571 - Release exclusive access to EEPROM
+ * @hw: pointer to the HW structure
+ *
+ * Stop any current commands to the EEPROM and clear the EEPROM request bit.
+ **/
+static void e1000_release_nvm_82571(struct e1000_hw *hw)
+{
+ e1000e_release_nvm(hw);
+ e1000_put_hw_semaphore_82571(hw);
+}
+
+/**
+ * e1000_write_nvm_82571 - Write to EEPROM using appropriate interface
+ * @hw: pointer to the HW structure
+ * @offset: offset within the EEPROM to be written to
+ * @words: number of words to write
+ * @data: 16 bit word(s) to be written to the EEPROM
+ *
+ * For non-82573 silicon, write data to EEPROM at offset using SPI interface.
+ *
+ * If e1000e_update_nvm_checksum is not called after this function, the
+ * EEPROM will most likely contain an invalid checksum.
+ **/
+static s32 e1000_write_nvm_82571(struct e1000_hw *hw, u16 offset, u16 words,
+ u16 *data)
+{
+ s32 ret_val;
+
+ switch (hw->mac.type) {
+ case e1000_82573:
+ case e1000_82574:
+ case e1000_82583:
+ ret_val = e1000_write_nvm_eewr_82571(hw, offset, words, data);
+ break;
+ case e1000_82571:
+ case e1000_82572:
+ ret_val = e1000e_write_nvm_spi(hw, offset, words, data);
+ break;
+ default:
+ ret_val = -E1000_ERR_NVM;
+ break;
+ }
+
+ return ret_val;
+}
+
+/**
+ * e1000_update_nvm_checksum_82571 - Update EEPROM checksum
+ * @hw: pointer to the HW structure
+ *
+ * Updates the EEPROM checksum by reading/adding each word of the EEPROM
+ * up to the checksum. Then calculates the EEPROM checksum and writes the
+ * value to the EEPROM.
+ **/
+static s32 e1000_update_nvm_checksum_82571(struct e1000_hw *hw)
+{
+ u32 eecd;
+ s32 ret_val;
+ u16 i;
+
+ ret_val = e1000e_update_nvm_checksum_generic(hw);
+ if (ret_val)
+ return ret_val;
+
+ /* If our nvm is an EEPROM, then we're done
+ * otherwise, commit the checksum to the flash NVM.
+ */
+ if (hw->nvm.type != e1000_nvm_flash_hw)
+ return 0;
+
+ /* Check for pending operations. */
+ for (i = 0; i < E1000_FLASH_UPDATES; i++) {
+ usleep_range(1000, 2000);
+ if (!(er32(EECD) & E1000_EECD_FLUPD))
+ break;
+ }
+
+ if (i == E1000_FLASH_UPDATES)
+ return -E1000_ERR_NVM;
+
+ /* Reset the firmware if using STM opcode. */
+ if ((er32(FLOP) & 0xFF00) == E1000_STM_OPCODE) {
+ /* The enabling of and the actual reset must be done
+ * in two write cycles.
+ */
+ ew32(HICR, E1000_HICR_FW_RESET_ENABLE);
+ e1e_flush();
+ ew32(HICR, E1000_HICR_FW_RESET);
+ }
+
+ /* Commit the write to flash */
+ eecd = er32(EECD) | E1000_EECD_FLUPD;
+ ew32(EECD, eecd);
+
+ for (i = 0; i < E1000_FLASH_UPDATES; i++) {
+ usleep_range(1000, 2000);
+ if (!(er32(EECD) & E1000_EECD_FLUPD))
+ break;
+ }
+
+ if (i == E1000_FLASH_UPDATES)
+ return -E1000_ERR_NVM;
+
+ return 0;
+}
+
+/**
+ * e1000_validate_nvm_checksum_82571 - Validate EEPROM checksum
+ * @hw: pointer to the HW structure
+ *
+ * Calculates the EEPROM checksum by reading/adding each word of the EEPROM
+ * and then verifies that the sum of the EEPROM is equal to 0xBABA.
+ **/
+static s32 e1000_validate_nvm_checksum_82571(struct e1000_hw *hw)
+{
+ if (hw->nvm.type == e1000_nvm_flash_hw)
+ e1000_fix_nvm_checksum_82571(hw);
+
+ return e1000e_validate_nvm_checksum_generic(hw);
+}
+
+/**
+ * e1000_write_nvm_eewr_82571 - Write to EEPROM for 82573 silicon
+ * @hw: pointer to the HW structure
+ * @offset: offset within the EEPROM to be written to
+ * @words: number of words to write
+ * @data: 16 bit word(s) to be written to the EEPROM
+ *
+ * After checking for invalid values, poll the EEPROM to ensure the previous
+ * command has completed before trying to write the next word. After write
+ * poll for completion.
+ *
+ * If e1000e_update_nvm_checksum is not called after this function, the
+ * EEPROM will most likely contain an invalid checksum.
+ **/
+static s32 e1000_write_nvm_eewr_82571(struct e1000_hw *hw, u16 offset,
+ u16 words, u16 *data)
+{
+ struct e1000_nvm_info *nvm = &hw->nvm;
+ u32 i, eewr = 0;
+ s32 ret_val = 0;
+
+ /* A check for invalid values: offset too large, too many words,
+ * and not enough words.
+ */
+ if ((offset >= nvm->word_size) || (words > (nvm->word_size - offset)) ||
+ (words == 0)) {
+ e_dbg("nvm parameter(s) out of bounds\n");
+ return -E1000_ERR_NVM;
+ }
+
+ for (i = 0; i < words; i++) {
+ eewr = ((data[i] << E1000_NVM_RW_REG_DATA) |
+ ((offset + i) << E1000_NVM_RW_ADDR_SHIFT) |
+ E1000_NVM_RW_REG_START);
+
+ ret_val = e1000e_poll_eerd_eewr_done(hw, E1000_NVM_POLL_WRITE);
+ if (ret_val)
+ break;
+
+ ew32(EEWR, eewr);
+
+ ret_val = e1000e_poll_eerd_eewr_done(hw, E1000_NVM_POLL_WRITE);
+ if (ret_val)
+ break;
+ }
+
+ return ret_val;
+}
+
+/**
+ * e1000_get_cfg_done_82571 - Poll for configuration done
+ * @hw: pointer to the HW structure
+ *
+ * Reads the management control register for the config done bit to be set.
+ **/
+static s32 e1000_get_cfg_done_82571(struct e1000_hw *hw)
+{
+ s32 timeout = PHY_CFG_TIMEOUT;
+
+ while (timeout) {
+ if (er32(EEMNGCTL) & E1000_NVM_CFG_DONE_PORT_0)
+ break;
+ usleep_range(1000, 2000);
+ timeout--;
+ }
+ if (!timeout) {
+ e_dbg("MNG configuration cycle has not completed.\n");
+ return -E1000_ERR_RESET;
+ }
+
+ return 0;
+}
+
+/**
+ * e1000_set_d0_lplu_state_82571 - Set Low Power Linkup D0 state
+ * @hw: pointer to the HW structure
+ * @active: true to enable LPLU, false to disable
+ *
+ * Sets the LPLU D0 state according to the active flag. When activating LPLU
+ * this function also disables smart speed and vice versa. LPLU will not be
+ * activated unless the device autonegotiation advertisement meets standards
+ * of either 10 or 10/100 or 10/100/1000 at all duplexes. This is a function
+ * pointer entry point only called by PHY setup routines.
+ **/
+static s32 e1000_set_d0_lplu_state_82571(struct e1000_hw *hw, bool active)
+{
+ struct e1000_phy_info *phy = &hw->phy;
+ s32 ret_val;
+ u16 data;
+
+ ret_val = e1e_rphy(hw, IGP02E1000_PHY_POWER_MGMT, &data);
+ if (ret_val)
+ return ret_val;
+
+ if (active) {
+ data |= IGP02E1000_PM_D0_LPLU;
+ ret_val = e1e_wphy(hw, IGP02E1000_PHY_POWER_MGMT, data);
+ if (ret_val)
+ return ret_val;
+
+ /* When LPLU is enabled, we should disable SmartSpeed */
+ ret_val = e1e_rphy(hw, IGP01E1000_PHY_PORT_CONFIG, &data);
+ if (ret_val)
+ return ret_val;
+ data &= ~IGP01E1000_PSCFR_SMART_SPEED;
+ ret_val = e1e_wphy(hw, IGP01E1000_PHY_PORT_CONFIG, data);
+ if (ret_val)
+ return ret_val;
+ } else {
+ data &= ~IGP02E1000_PM_D0_LPLU;
+ ret_val = e1e_wphy(hw, IGP02E1000_PHY_POWER_MGMT, data);
+ /* LPLU and SmartSpeed are mutually exclusive. LPLU is used
+ * during Dx states where the power conservation is most
+ * important. During driver activity we should enable
+ * SmartSpeed, so performance is maintained.
+ */
+ if (phy->smart_speed == e1000_smart_speed_on) {
+ ret_val = e1e_rphy(hw,
+ IGP01E1000_PHY_PORT_CONFIG, &data);
+ if (ret_val)
+ return ret_val;
+
+ data |= IGP01E1000_PSCFR_SMART_SPEED;
+ ret_val = e1e_wphy(hw,
+ IGP01E1000_PHY_PORT_CONFIG, data);
+ if (ret_val)
+ return ret_val;
+ } else if (phy->smart_speed == e1000_smart_speed_off) {
+ ret_val = e1e_rphy(hw,
+ IGP01E1000_PHY_PORT_CONFIG, &data);
+ if (ret_val)
+ return ret_val;
+
+ data &= ~IGP01E1000_PSCFR_SMART_SPEED;
+ ret_val = e1e_wphy(hw,
+ IGP01E1000_PHY_PORT_CONFIG, data);
+ if (ret_val)
+ return ret_val;
+ }
+ }
+
+ return 0;
+}
+
+/**
+ * e1000_reset_hw_82571 - Reset hardware
+ * @hw: pointer to the HW structure
+ *
+ * This resets the hardware into a known state.
+ **/
+static s32 e1000_reset_hw_82571(struct e1000_hw *hw)
+{
+ u32 ctrl, ctrl_ext, eecd, tctl;
+ s32 ret_val;
+
+ /* Prevent the PCI-E bus from sticking if there is no TLP connection
+ * on the last TLP read/write transaction when MAC is reset.
+ */
+ ret_val = e1000e_disable_pcie_master(hw);
+ if (ret_val)
+ e_dbg("PCI-E Master disable polling has failed.\n");
+
+ e_dbg("Masking off all interrupts\n");
+ ew32(IMC, 0xffffffff);
+
+ ew32(RCTL, 0);
+ tctl = er32(TCTL);
+ tctl &= ~E1000_TCTL_EN;
+ ew32(TCTL, tctl);
+ e1e_flush();
+
+ usleep_range(10000, 20000);
+
+ /* Must acquire the MDIO ownership before MAC reset.
+ * Ownership defaults to firmware after a reset.
+ */
+ switch (hw->mac.type) {
+ case e1000_82573:
+ ret_val = e1000_get_hw_semaphore_82573(hw);
+ break;
+ case e1000_82574:
+ case e1000_82583:
+ ret_val = e1000_get_hw_semaphore_82574(hw);
+ break;
+ default:
+ break;
+ }
+
+ ctrl = er32(CTRL);
+
+ e_dbg("Issuing a global reset to MAC\n");
+ ew32(CTRL, ctrl | E1000_CTRL_RST);
+
+ /* Must release MDIO ownership and mutex after MAC reset. */
+ switch (hw->mac.type) {
+ case e1000_82573:
+ /* Release mutex only if the hw semaphore is acquired */
+ if (!ret_val)
+ e1000_put_hw_semaphore_82573(hw);
+ break;
+ case e1000_82574:
+ case e1000_82583:
+ /* Release mutex only if the hw semaphore is acquired */
+ if (!ret_val)
+ e1000_put_hw_semaphore_82574(hw);
+ break;
+ default:
+ break;
+ }
+
+ if (hw->nvm.type == e1000_nvm_flash_hw) {
+ usleep_range(10, 20);
+ ctrl_ext = er32(CTRL_EXT);
+ ctrl_ext |= E1000_CTRL_EXT_EE_RST;
+ ew32(CTRL_EXT, ctrl_ext);
+ e1e_flush();
+ }
+
+ ret_val = e1000e_get_auto_rd_done(hw);
+ if (ret_val)
+ /* We don't want to continue accessing MAC registers. */
+ return ret_val;
+
+ /* Phy configuration from NVM just starts after EECD_AUTO_RD is set.
+ * Need to wait for Phy configuration completion before accessing
+ * NVM and Phy.
+ */
+
+ switch (hw->mac.type) {
+ case e1000_82571:
+ case e1000_82572:
+ /* REQ and GNT bits need to be cleared when using AUTO_RD
+ * to access the EEPROM.
+ */
+ eecd = er32(EECD);
+ eecd &= ~(E1000_EECD_REQ | E1000_EECD_GNT);
+ ew32(EECD, eecd);
+ break;
+ case e1000_82573:
+ case e1000_82574:
+ case e1000_82583:
+ msleep(25);
+ break;
+ default:
+ break;
+ }
+
+ /* Clear any pending interrupt events. */
+ ew32(IMC, 0xffffffff);
+ er32(ICR);
+
+ if (hw->mac.type == e1000_82571) {
+ /* Install any alternate MAC address into RAR0 */
+ ret_val = e1000_check_alt_mac_addr_generic(hw);
+ if (ret_val)
+ return ret_val;
+
+ e1000e_set_laa_state_82571(hw, true);
+ }
+
+ /* Reinitialize the 82571 serdes link state machine */
+ if (hw->phy.media_type == e1000_media_type_internal_serdes)
+ hw->mac.serdes_link_state = e1000_serdes_link_down;
+
+ return 0;
+}
+
+/**
+ * e1000_init_hw_82571 - Initialize hardware
+ * @hw: pointer to the HW structure
+ *
+ * This inits the hardware readying it for operation.
+ **/
+static s32 e1000_init_hw_82571(struct e1000_hw *hw)
+{
+ struct e1000_mac_info *mac = &hw->mac;
+ u32 reg_data;
+ s32 ret_val;
+ u16 i, rar_count = mac->rar_entry_count;
+
+ e1000_initialize_hw_bits_82571(hw);
+
+ /* Initialize identification LED */
+ ret_val = mac->ops.id_led_init(hw);
+ /* An error is not fatal and we should not stop init due to this */
+ if (ret_val)
+ e_dbg("Error initializing identification LED\n");
+
+ /* Disabling VLAN filtering */
+ e_dbg("Initializing the IEEE VLAN\n");
+ mac->ops.clear_vfta(hw);
+
+ /* Setup the receive address.
+ * If, however, a locally administered address was assigned to the
+ * 82571, we must reserve a RAR for it to work around an issue where
+ * resetting one port will reload the MAC on the other port.
+ */
+ if (e1000e_get_laa_state_82571(hw))
+ rar_count--;
+ e1000e_init_rx_addrs(hw, rar_count);
+
+ /* Zero out the Multicast HASH table */
+ e_dbg("Zeroing the MTA\n");
+ for (i = 0; i < mac->mta_reg_count; i++)
+ E1000_WRITE_REG_ARRAY(hw, E1000_MTA, i, 0);
+
+ /* Setup link and flow control */
+ ret_val = mac->ops.setup_link(hw);
+
+ /* Set the transmit descriptor write-back policy */
+ reg_data = er32(TXDCTL(0));
+ reg_data = ((reg_data & ~E1000_TXDCTL_WTHRESH) |
+ E1000_TXDCTL_FULL_TX_DESC_WB | E1000_TXDCTL_COUNT_DESC);
+ ew32(TXDCTL(0), reg_data);
+
+ /* ...for both queues. */
+ switch (mac->type) {
+ case e1000_82573:
+ e1000e_enable_tx_pkt_filtering(hw);
+ /* fall through */
+ case e1000_82574:
+ case e1000_82583:
+ reg_data = er32(GCR);
+ reg_data |= E1000_GCR_L1_ACT_WITHOUT_L0S_RX;
+ ew32(GCR, reg_data);
+ break;
+ default:
+ reg_data = er32(TXDCTL(1));
+ reg_data = ((reg_data & ~E1000_TXDCTL_WTHRESH) |
+ E1000_TXDCTL_FULL_TX_DESC_WB |
+ E1000_TXDCTL_COUNT_DESC);
+ ew32(TXDCTL(1), reg_data);
+ break;
+ }
+
+ /* Clear all of the statistics registers (clear on read). It is
+ * important that we do this after we have tried to establish link
+ * because the symbol error count will increment wildly if there
+ * is no link.
+ */
+ e1000_clear_hw_cntrs_82571(hw);
+
+ return ret_val;
+}
+
+/**
+ * e1000_initialize_hw_bits_82571 - Initialize hardware-dependent bits
+ * @hw: pointer to the HW structure
+ *
+ * Initializes required hardware-dependent bits needed for normal operation.
+ **/
+static void e1000_initialize_hw_bits_82571(struct e1000_hw *hw)
+{
+ u32 reg;
+
+ /* Transmit Descriptor Control 0 */
+ reg = er32(TXDCTL(0));
+ reg |= (1 << 22);
+ ew32(TXDCTL(0), reg);
+
+ /* Transmit Descriptor Control 1 */
+ reg = er32(TXDCTL(1));
+ reg |= (1 << 22);
+ ew32(TXDCTL(1), reg);
+
+ /* Transmit Arbitration Control 0 */
+ reg = er32(TARC(0));
+ reg &= ~(0xF << 27); /* 30:27 */
+ switch (hw->mac.type) {
+ case e1000_82571:
+ case e1000_82572:
+ reg |= (1 << 23) | (1 << 24) | (1 << 25) | (1 << 26);
+ break;
+ case e1000_82574:
+ case e1000_82583:
+ reg |= (1 << 26);
+ break;
+ default:
+ break;
+ }
+ ew32(TARC(0), reg);
+
+ /* Transmit Arbitration Control 1 */
+ reg = er32(TARC(1));
+ switch (hw->mac.type) {
+ case e1000_82571:
+ case e1000_82572:
+ reg &= ~((1 << 29) | (1 << 30));
+ reg |= (1 << 22) | (1 << 24) | (1 << 25) | (1 << 26);
+ if (er32(TCTL) & E1000_TCTL_MULR)
+ reg &= ~(1 << 28);
+ else
+ reg |= (1 << 28);
+ ew32(TARC(1), reg);
+ break;
+ default:
+ break;
+ }
+
+ /* Device Control */
+ switch (hw->mac.type) {
+ case e1000_82573:
+ case e1000_82574:
+ case e1000_82583:
+ reg = er32(CTRL);
+ reg &= ~(1 << 29);
+ ew32(CTRL, reg);
+ break;
+ default:
+ break;
+ }
+
+ /* Extended Device Control */
+ switch (hw->mac.type) {
+ case e1000_82573:
+ case e1000_82574:
+ case e1000_82583:
+ reg = er32(CTRL_EXT);
+ reg &= ~(1 << 23);
+ reg |= (1 << 22);
+ ew32(CTRL_EXT, reg);
+ break;
+ default:
+ break;
+ }
+
+ if (hw->mac.type == e1000_82571) {
+ reg = er32(PBA_ECC);
+ reg |= E1000_PBA_ECC_CORR_EN;
+ ew32(PBA_ECC, reg);
+ }
+
+ /* Workaround for hardware errata.
+ * Ensure that DMA Dynamic Clock gating is disabled on 82571 and 82572
+ */
+ if ((hw->mac.type == e1000_82571) || (hw->mac.type == e1000_82572)) {
+ reg = er32(CTRL_EXT);
+ reg &= ~E1000_CTRL_EXT_DMA_DYN_CLK_EN;
+ ew32(CTRL_EXT, reg);
+ }
+
+ /* Disable IPv6 extension header parsing because some malformed
+ * IPv6 headers can hang the Rx.
+ */
+ if (hw->mac.type <= e1000_82573) {
+ reg = er32(RFCTL);
+ reg |= (E1000_RFCTL_IPV6_EX_DIS | E1000_RFCTL_NEW_IPV6_EXT_DIS);
+ ew32(RFCTL, reg);
+ }
+
+ /* PCI-Ex Control Registers */
+ switch (hw->mac.type) {
+ case e1000_82574:
+ case e1000_82583:
+ reg = er32(GCR);
+ reg |= (1 << 22);
+ ew32(GCR, reg);
+
+ /* Workaround for hardware errata.
+ * apply workaround for hardware errata documented in errata
+ * docs Fixes issue where some error prone or unreliable PCIe
+ * completions are occurring, particularly with ASPM enabled.
+ * Without fix, issue can cause Tx timeouts.
+ */
+ reg = er32(GCR2);
+ reg |= 1;
+ ew32(GCR2, reg);
+ break;
+ default:
+ break;
+ }
+}
+
+/**
+ * e1000_clear_vfta_82571 - Clear VLAN filter table
+ * @hw: pointer to the HW structure
+ *
+ * Clears the register array which contains the VLAN filter table by
+ * setting all the values to 0.
+ **/
+static void e1000_clear_vfta_82571(struct e1000_hw *hw)
+{
+ u32 offset;
+ u32 vfta_value = 0;
+ u32 vfta_offset = 0;
+ u32 vfta_bit_in_reg = 0;
+
+ switch (hw->mac.type) {
+ case e1000_82573:
+ case e1000_82574:
+ case e1000_82583:
+ if (hw->mng_cookie.vlan_id != 0) {
+ /* The VFTA is a 4096b bit-field, each identifying
+ * a single VLAN ID. The following operations
+ * determine which 32b entry (i.e. offset) into the
+ * array we want to set the VLAN ID (i.e. bit) of
+ * the manageability unit.
+ */
+ vfta_offset = (hw->mng_cookie.vlan_id >>
+ E1000_VFTA_ENTRY_SHIFT) &
+ E1000_VFTA_ENTRY_MASK;
+ vfta_bit_in_reg =
+ 1 << (hw->mng_cookie.vlan_id &
+ E1000_VFTA_ENTRY_BIT_SHIFT_MASK);
+ }
+ break;
+ default:
+ break;
+ }
+ for (offset = 0; offset < E1000_VLAN_FILTER_TBL_SIZE; offset++) {
+ /* If the offset we want to clear is the same offset of the
+ * manageability VLAN ID, then clear all bits except that of
+ * the manageability unit.
+ */
+ vfta_value = (offset == vfta_offset) ? vfta_bit_in_reg : 0;
+ E1000_WRITE_REG_ARRAY(hw, E1000_VFTA, offset, vfta_value);
+ e1e_flush();
+ }
+}
+
+/**
+ * e1000_check_mng_mode_82574 - Check manageability is enabled
+ * @hw: pointer to the HW structure
+ *
+ * Reads the NVM Initialization Control Word 2 and returns true
+ * (>0) if any manageability is enabled, else false (0).
+ **/
+static bool e1000_check_mng_mode_82574(struct e1000_hw *hw)
+{
+ u16 data;
+ s32 ret_val;
+
+ ret_val = e1000_read_nvm(hw, NVM_INIT_CONTROL2_REG, 1, &data);
+ if (ret_val)
+ return false;
+
+ return (data & E1000_NVM_INIT_CTRL2_MNGM) != 0;
+}
+
+/**
+ * e1000_led_on_82574 - Turn LED on
+ * @hw: pointer to the HW structure
+ *
+ * Turn LED on.
+ **/
+static s32 e1000_led_on_82574(struct e1000_hw *hw)
+{
+ u32 ctrl;
+ u32 i;
+
+ ctrl = hw->mac.ledctl_mode2;
+ if (!(E1000_STATUS_LU & er32(STATUS))) {
+ /* If no link, then turn LED on by setting the invert bit
+ * for each LED that's "on" (0x0E) in ledctl_mode2.
+ */
+ for (i = 0; i < 4; i++)
+ if (((hw->mac.ledctl_mode2 >> (i * 8)) & 0xFF) ==
+ E1000_LEDCTL_MODE_LED_ON)
+ ctrl |= (E1000_LEDCTL_LED0_IVRT << (i * 8));
+ }
+ ew32(LEDCTL, ctrl);
+
+ return 0;
+}
+
+/**
+ * e1000_check_phy_82574 - check 82574 phy hung state
+ * @hw: pointer to the HW structure
+ *
+ * Returns whether phy is hung or not
+ **/
+bool e1000_check_phy_82574(struct e1000_hw *hw)
+{
+ u16 status_1kbt = 0;
+ u16 receive_errors = 0;
+ s32 ret_val;
+
+ /* Read PHY Receive Error counter first, if its is max - all F's then
+ * read the Base1000T status register If both are max then PHY is hung.
+ */
+ ret_val = e1e_rphy(hw, E1000_RECEIVE_ERROR_COUNTER, &receive_errors);
+ if (ret_val)
+ return false;
+ if (receive_errors == E1000_RECEIVE_ERROR_MAX) {
+ ret_val = e1e_rphy(hw, E1000_BASE1000T_STATUS, &status_1kbt);
+ if (ret_val)
+ return false;
+ if ((status_1kbt & E1000_IDLE_ERROR_COUNT_MASK) ==
+ E1000_IDLE_ERROR_COUNT_MASK)
+ return true;
+ }
+
+ return false;
+}
+
+/**
+ * e1000_setup_link_82571 - Setup flow control and link settings
+ * @hw: pointer to the HW structure
+ *
+ * Determines which flow control settings to use, then configures flow
+ * control. Calls the appropriate media-specific link configuration
+ * function. Assuming the adapter has a valid link partner, a valid link
+ * should be established. Assumes the hardware has previously been reset
+ * and the transmitter and receiver are not enabled.
+ **/
+static s32 e1000_setup_link_82571(struct e1000_hw *hw)
+{
+ /* 82573 does not have a word in the NVM to determine
+ * the default flow control setting, so we explicitly
+ * set it to full.
+ */
+ switch (hw->mac.type) {
+ case e1000_82573:
+ case e1000_82574:
+ case e1000_82583:
+ if (hw->fc.requested_mode == e1000_fc_default)
+ hw->fc.requested_mode = e1000_fc_full;
+ break;
+ default:
+ break;
+ }
+
+ return e1000e_setup_link_generic(hw);
+}
+
+/**
+ * e1000_setup_copper_link_82571 - Configure copper link settings
+ * @hw: pointer to the HW structure
+ *
+ * Configures the link for auto-neg or forced speed and duplex. Then we check
+ * for link, once link is established calls to configure collision distance
+ * and flow control are called.
+ **/
+static s32 e1000_setup_copper_link_82571(struct e1000_hw *hw)
+{
+ u32 ctrl;
+ s32 ret_val;
+
+ ctrl = er32(CTRL);
+ ctrl |= E1000_CTRL_SLU;
+ ctrl &= ~(E1000_CTRL_FRCSPD | E1000_CTRL_FRCDPX);
+ ew32(CTRL, ctrl);
+
+ switch (hw->phy.type) {
+ case e1000_phy_m88:
+ case e1000_phy_bm:
+ ret_val = e1000e_copper_link_setup_m88(hw);
+ break;
+ case e1000_phy_igp_2:
+ ret_val = e1000e_copper_link_setup_igp(hw);
+ break;
+ default:
+ return -E1000_ERR_PHY;
+ break;
+ }
+
+ if (ret_val)
+ return ret_val;
+
+ return e1000e_setup_copper_link(hw);
+}
+
+/**
+ * e1000_setup_fiber_serdes_link_82571 - Setup link for fiber/serdes
+ * @hw: pointer to the HW structure
+ *
+ * Configures collision distance and flow control for fiber and serdes links.
+ * Upon successful setup, poll for link.
+ **/
+static s32 e1000_setup_fiber_serdes_link_82571(struct e1000_hw *hw)
+{
+ switch (hw->mac.type) {
+ case e1000_82571:
+ case e1000_82572:
+ /* If SerDes loopback mode is entered, there is no form
+ * of reset to take the adapter out of that mode. So we
+ * have to explicitly take the adapter out of loopback
+ * mode. This prevents drivers from twiddling their thumbs
+ * if another tool failed to take it out of loopback mode.
+ */
+ ew32(SCTL, E1000_SCTL_DISABLE_SERDES_LOOPBACK);
+ break;
+ default:
+ break;
+ }
+
+ return e1000e_setup_fiber_serdes_link(hw);
+}
+
+/**
+ * e1000_check_for_serdes_link_82571 - Check for link (Serdes)
+ * @hw: pointer to the HW structure
+ *
+ * Reports the link state as up or down.
+ *
+ * If autonegotiation is supported by the link partner, the link state is
+ * determined by the result of autonegotiation. This is the most likely case.
+ * If autonegotiation is not supported by the link partner, and the link
+ * has a valid signal, force the link up.
+ *
+ * The link state is represented internally here by 4 states:
+ *
+ * 1) down
+ * 2) autoneg_progress
+ * 3) autoneg_complete (the link successfully autonegotiated)
+ * 4) forced_up (the link has been forced up, it did not autonegotiate)
+ *
+ **/
+static s32 e1000_check_for_serdes_link_82571(struct e1000_hw *hw)
+{
+ struct e1000_mac_info *mac = &hw->mac;
+ u32 rxcw;
+ u32 ctrl;
+ u32 status;
+ u32 txcw;
+ u32 i;
+ s32 ret_val = 0;
+
+ ctrl = er32(CTRL);
+ status = er32(STATUS);
+ er32(RXCW);
+ /* SYNCH bit and IV bit are sticky */
+ usleep_range(10, 20);
+ rxcw = er32(RXCW);
+
+ if ((rxcw & E1000_RXCW_SYNCH) && !(rxcw & E1000_RXCW_IV)) {
+ /* Receiver is synchronized with no invalid bits. */
+ switch (mac->serdes_link_state) {
+ case e1000_serdes_link_autoneg_complete:
+ if (!(status & E1000_STATUS_LU)) {
+ /* We have lost link, retry autoneg before
+ * reporting link failure
+ */
+ mac->serdes_link_state =
+ e1000_serdes_link_autoneg_progress;
+ mac->serdes_has_link = false;
+ e_dbg("AN_UP -> AN_PROG\n");
+ } else {
+ mac->serdes_has_link = true;
+ }
+ break;
+
+ case e1000_serdes_link_forced_up:
+ /* If we are receiving /C/ ordered sets, re-enable
+ * auto-negotiation in the TXCW register and disable
+ * forced link in the Device Control register in an
+ * attempt to auto-negotiate with our link partner.
+ */
+ if (rxcw & E1000_RXCW_C) {
+ /* Enable autoneg, and unforce link up */
+ ew32(TXCW, mac->txcw);
+ ew32(CTRL, (ctrl & ~E1000_CTRL_SLU));
+ mac->serdes_link_state =
+ e1000_serdes_link_autoneg_progress;
+ mac->serdes_has_link = false;
+ e_dbg("FORCED_UP -> AN_PROG\n");
+ } else {
+ mac->serdes_has_link = true;
+ }
+ break;
+
+ case e1000_serdes_link_autoneg_progress:
+ if (rxcw & E1000_RXCW_C) {
+ /* We received /C/ ordered sets, meaning the
+ * link partner has autonegotiated, and we can
+ * trust the Link Up (LU) status bit.
+ */
+ if (status & E1000_STATUS_LU) {
+ mac->serdes_link_state =
+ e1000_serdes_link_autoneg_complete;
+ e_dbg("AN_PROG -> AN_UP\n");
+ mac->serdes_has_link = true;
+ } else {
+ /* Autoneg completed, but failed. */
+ mac->serdes_link_state =
+ e1000_serdes_link_down;
+ e_dbg("AN_PROG -> DOWN\n");
+ }
+ } else {
+ /* The link partner did not autoneg.
+ * Force link up and full duplex, and change
+ * state to forced.
+ */
+ ew32(TXCW, (mac->txcw & ~E1000_TXCW_ANE));
+ ctrl |= (E1000_CTRL_SLU | E1000_CTRL_FD);
+ ew32(CTRL, ctrl);
+
+ /* Configure Flow Control after link up. */
+ ret_val = e1000e_config_fc_after_link_up(hw);
+ if (ret_val) {
+ e_dbg("Error config flow control\n");
+ break;
+ }
+ mac->serdes_link_state =
+ e1000_serdes_link_forced_up;
+ mac->serdes_has_link = true;
+ e_dbg("AN_PROG -> FORCED_UP\n");
+ }
+ break;
+
+ case e1000_serdes_link_down:
+ default:
+ /* The link was down but the receiver has now gained
+ * valid sync, so lets see if we can bring the link
+ * up.
+ */
+ ew32(TXCW, mac->txcw);
+ ew32(CTRL, (ctrl & ~E1000_CTRL_SLU));
+ mac->serdes_link_state =
+ e1000_serdes_link_autoneg_progress;
+ mac->serdes_has_link = false;
+ e_dbg("DOWN -> AN_PROG\n");
+ break;
+ }
+ } else {
+ if (!(rxcw & E1000_RXCW_SYNCH)) {
+ mac->serdes_has_link = false;
+ mac->serdes_link_state = e1000_serdes_link_down;
+ e_dbg("ANYSTATE -> DOWN\n");
+ } else {
+ /* Check several times, if SYNCH bit and CONFIG
+ * bit both are consistently 1 then simply ignore
+ * the IV bit and restart Autoneg
+ */
+ for (i = 0; i < AN_RETRY_COUNT; i++) {
+ usleep_range(10, 20);
+ rxcw = er32(RXCW);
+ if ((rxcw & E1000_RXCW_SYNCH) &&
+ (rxcw & E1000_RXCW_C))
+ continue;
+
+ if (rxcw & E1000_RXCW_IV) {
+ mac->serdes_has_link = false;
+ mac->serdes_link_state =
+ e1000_serdes_link_down;
+ e_dbg("ANYSTATE -> DOWN\n");
+ break;
+ }
+ }
+
+ if (i == AN_RETRY_COUNT) {
+ txcw = er32(TXCW);
+ txcw |= E1000_TXCW_ANE;
+ ew32(TXCW, txcw);
+ mac->serdes_link_state =
+ e1000_serdes_link_autoneg_progress;
+ mac->serdes_has_link = false;
+ e_dbg("ANYSTATE -> AN_PROG\n");
+ }
+ }
+ }
+
+ return ret_val;
+}
+
+/**
+ * e1000_valid_led_default_82571 - Verify a valid default LED config
+ * @hw: pointer to the HW structure
+ * @data: pointer to the NVM (EEPROM)
+ *
+ * Read the EEPROM for the current default LED configuration. If the
+ * LED configuration is not valid, set to a valid LED configuration.
+ **/
+static s32 e1000_valid_led_default_82571(struct e1000_hw *hw, u16 *data)
+{
+ s32 ret_val;
+
+ ret_val = e1000_read_nvm(hw, NVM_ID_LED_SETTINGS, 1, data);
+ if (ret_val) {
+ e_dbg("NVM Read Error\n");
+ return ret_val;
+ }
+
+ switch (hw->mac.type) {
+ case e1000_82573:
+ case e1000_82574:
+ case e1000_82583:
+ if (*data == ID_LED_RESERVED_F746)
+ *data = ID_LED_DEFAULT_82573;
+ break;
+ default:
+ if (*data == ID_LED_RESERVED_0000 ||
+ *data == ID_LED_RESERVED_FFFF)
+ *data = ID_LED_DEFAULT;
+ break;
+ }
+
+ return 0;
+}
+
+/**
+ * e1000e_get_laa_state_82571 - Get locally administered address state
+ * @hw: pointer to the HW structure
+ *
+ * Retrieve and return the current locally administered address state.
+ **/
+bool e1000e_get_laa_state_82571(struct e1000_hw *hw)
+{
+ if (hw->mac.type != e1000_82571)
+ return false;
+
+ return hw->dev_spec.e82571.laa_is_present;
+}
+
+/**
+ * e1000e_set_laa_state_82571 - Set locally administered address state
+ * @hw: pointer to the HW structure
+ * @state: enable/disable locally administered address
+ *
+ * Enable/Disable the current locally administered address state.
+ **/
+void e1000e_set_laa_state_82571(struct e1000_hw *hw, bool state)
+{
+ if (hw->mac.type != e1000_82571)
+ return;
+
+ hw->dev_spec.e82571.laa_is_present = state;
+
+ /* If workaround is activated... */
+ if (state)
+ /* Hold a copy of the LAA in RAR[14] This is done so that
+ * between the time RAR[0] gets clobbered and the time it
+ * gets fixed, the actual LAA is in one of the RARs and no
+ * incoming packets directed to this port are dropped.
+ * Eventually the LAA will be in RAR[0] and RAR[14].
+ */
+ hw->mac.ops.rar_set(hw, hw->mac.addr,
+ hw->mac.rar_entry_count - 1);
+}
+
+/**
+ * e1000_fix_nvm_checksum_82571 - Fix EEPROM checksum
+ * @hw: pointer to the HW structure
+ *
+ * Verifies that the EEPROM has completed the update. After updating the
+ * EEPROM, we need to check bit 15 in work 0x23 for the checksum fix. If
+ * the checksum fix is not implemented, we need to set the bit and update
+ * the checksum. Otherwise, if bit 15 is set and the checksum is incorrect,
+ * we need to return bad checksum.
+ **/
+static s32 e1000_fix_nvm_checksum_82571(struct e1000_hw *hw)
+{
+ struct e1000_nvm_info *nvm = &hw->nvm;
+ s32 ret_val;
+ u16 data;
+
+ if (nvm->type != e1000_nvm_flash_hw)
+ return 0;
+
+ /* Check bit 4 of word 10h. If it is 0, firmware is done updating
+ * 10h-12h. Checksum may need to be fixed.
+ */
+ ret_val = e1000_read_nvm(hw, 0x10, 1, &data);
+ if (ret_val)
+ return ret_val;
+
+ if (!(data & 0x10)) {
+ /* Read 0x23 and check bit 15. This bit is a 1
+ * when the checksum has already been fixed. If
+ * the checksum is still wrong and this bit is a
+ * 1, we need to return bad checksum. Otherwise,
+ * we need to set this bit to a 1 and update the
+ * checksum.
+ */
+ ret_val = e1000_read_nvm(hw, 0x23, 1, &data);
+ if (ret_val)
+ return ret_val;
+
+ if (!(data & 0x8000)) {
+ data |= 0x8000;
+ ret_val = e1000_write_nvm(hw, 0x23, 1, &data);
+ if (ret_val)
+ return ret_val;
+ ret_val = e1000e_update_nvm_checksum(hw);
+ if (ret_val)
+ return ret_val;
+ }
+ }
+
+ return 0;
+}
+
+/**
+ * e1000_read_mac_addr_82571 - Read device MAC address
+ * @hw: pointer to the HW structure
+ **/
+static s32 e1000_read_mac_addr_82571(struct e1000_hw *hw)
+{
+ if (hw->mac.type == e1000_82571) {
+ s32 ret_val;
+
+ /* If there's an alternate MAC address place it in RAR0
+ * so that it will override the Si installed default perm
+ * address.
+ */
+ ret_val = e1000_check_alt_mac_addr_generic(hw);
+ if (ret_val)
+ return ret_val;
+ }
+
+ return e1000_read_mac_addr_generic(hw);
+}
+
+/**
+ * e1000_power_down_phy_copper_82571 - Remove link during PHY power down
+ * @hw: pointer to the HW structure
+ *
+ * In the case of a PHY power down to save power, or to turn off link during a
+ * driver unload, or wake on lan is not enabled, remove the link.
+ **/
+static void e1000_power_down_phy_copper_82571(struct e1000_hw *hw)
+{
+ struct e1000_phy_info *phy = &hw->phy;
+ struct e1000_mac_info *mac = &hw->mac;
+
+ if (!phy->ops.check_reset_block)
+ return;
+
+ /* If the management interface is not enabled, then power down */
+ if (!(mac->ops.check_mng_mode(hw) || phy->ops.check_reset_block(hw)))
+ e1000_power_down_phy_copper(hw);
+}
+
+/**
+ * e1000_clear_hw_cntrs_82571 - Clear device specific hardware counters
+ * @hw: pointer to the HW structure
+ *
+ * Clears the hardware counters by reading the counter registers.
+ **/
+static void e1000_clear_hw_cntrs_82571(struct e1000_hw *hw)
+{
+ e1000e_clear_hw_cntrs_base(hw);
+
+ er32(PRC64);
+ er32(PRC127);
+ er32(PRC255);
+ er32(PRC511);
+ er32(PRC1023);
+ er32(PRC1522);
+ er32(PTC64);
+ er32(PTC127);
+ er32(PTC255);
+ er32(PTC511);
+ er32(PTC1023);
+ er32(PTC1522);
+
+ er32(ALGNERRC);
+ er32(RXERRC);
+ er32(TNCRS);
+ er32(CEXTERR);
+ er32(TSCTC);
+ er32(TSCTFC);
+
+ er32(MGTPRC);
+ er32(MGTPDC);
+ er32(MGTPTC);
+
+ er32(IAC);
+ er32(ICRXOC);
+
+ er32(ICRXPTC);
+ er32(ICRXATC);
+ er32(ICTXPTC);
+ er32(ICTXATC);
+ er32(ICTXQEC);
+ er32(ICTXQMTC);
+ er32(ICRXDMTC);
+}
+
+static const struct e1000_mac_operations e82571_mac_ops = {
+ /* .check_mng_mode: mac type dependent */
+ /* .check_for_link: media type dependent */
+ .id_led_init = e1000e_id_led_init_generic,
+ .cleanup_led = e1000e_cleanup_led_generic,
+ .clear_hw_cntrs = e1000_clear_hw_cntrs_82571,
+ .get_bus_info = e1000e_get_bus_info_pcie,
+ .set_lan_id = e1000_set_lan_id_multi_port_pcie,
+ /* .get_link_up_info: media type dependent */
+ /* .led_on: mac type dependent */
+ .led_off = e1000e_led_off_generic,
+ .update_mc_addr_list = e1000e_update_mc_addr_list_generic,
+ .write_vfta = e1000_write_vfta_generic,
+ .clear_vfta = e1000_clear_vfta_82571,
+ .reset_hw = e1000_reset_hw_82571,
+ .init_hw = e1000_init_hw_82571,
+ .setup_link = e1000_setup_link_82571,
+ /* .setup_physical_interface: media type dependent */
+ .setup_led = e1000e_setup_led_generic,
+ .config_collision_dist = e1000e_config_collision_dist_generic,
+ .read_mac_addr = e1000_read_mac_addr_82571,
+ .rar_set = e1000e_rar_set_generic,
+ .rar_get_count = e1000e_rar_get_count_generic,
+ .validate_mdi_setting = e1000e_validate_mdi_setting_generic,
+};
+
+static const struct e1000_phy_operations e82_phy_ops_igp = {
+ .acquire = e1000_get_hw_semaphore_82571,
+ .check_polarity = e1000_check_polarity_igp,
+ .check_reset_block = e1000e_check_reset_block_generic,
+ .commit = NULL,
+ .force_speed_duplex = e1000e_phy_force_speed_duplex_igp,
+ .get_cfg_done = e1000_get_cfg_done_82571,
+ .get_cable_length = e1000e_get_cable_length_igp_2,
+ .get_info = e1000e_get_phy_info_igp,
+ .read_reg = e1000e_read_phy_reg_igp,
+ .release = e1000_put_hw_semaphore_82571,
+ .reset = e1000e_phy_hw_reset_generic,
+ .set_d0_lplu_state = e1000_set_d0_lplu_state_82571,
+ .set_d3_lplu_state = e1000e_set_d3_lplu_state,
+ .write_reg = e1000e_write_phy_reg_igp,
+ .cfg_on_link_up = NULL,
+};
+
+static const struct e1000_phy_operations e82_phy_ops_m88 = {
+ .acquire = e1000_get_hw_semaphore_82571,
+ .check_polarity = e1000_check_polarity_m88,
+ .check_reset_block = e1000e_check_reset_block_generic,
+ .commit = e1000e_phy_sw_reset,
+ .force_speed_duplex = e1000e_phy_force_speed_duplex_m88,
+ .get_cfg_done = e1000e_get_cfg_done_generic,
+ .get_cable_length = e1000e_get_cable_length_m88,
+ .get_info = e1000e_get_phy_info_m88,
+ .read_reg = e1000e_read_phy_reg_m88,
+ .release = e1000_put_hw_semaphore_82571,
+ .reset = e1000e_phy_hw_reset_generic,
+ .set_d0_lplu_state = e1000_set_d0_lplu_state_82571,
+ .set_d3_lplu_state = e1000e_set_d3_lplu_state,
+ .write_reg = e1000e_write_phy_reg_m88,
+ .cfg_on_link_up = NULL,
+};
+
+static const struct e1000_phy_operations e82_phy_ops_bm = {
+ .acquire = e1000_get_hw_semaphore_82571,
+ .check_polarity = e1000_check_polarity_m88,
+ .check_reset_block = e1000e_check_reset_block_generic,
+ .commit = e1000e_phy_sw_reset,
+ .force_speed_duplex = e1000e_phy_force_speed_duplex_m88,
+ .get_cfg_done = e1000e_get_cfg_done_generic,
+ .get_cable_length = e1000e_get_cable_length_m88,
+ .get_info = e1000e_get_phy_info_m88,
+ .read_reg = e1000e_read_phy_reg_bm2,
+ .release = e1000_put_hw_semaphore_82571,
+ .reset = e1000e_phy_hw_reset_generic,
+ .set_d0_lplu_state = e1000_set_d0_lplu_state_82571,
+ .set_d3_lplu_state = e1000e_set_d3_lplu_state,
+ .write_reg = e1000e_write_phy_reg_bm2,
+ .cfg_on_link_up = NULL,
+};
+
+static const struct e1000_nvm_operations e82571_nvm_ops = {
+ .acquire = e1000_acquire_nvm_82571,
+ .read = e1000e_read_nvm_eerd,
+ .release = e1000_release_nvm_82571,
+ .reload = e1000e_reload_nvm_generic,
+ .update = e1000_update_nvm_checksum_82571,
+ .valid_led_default = e1000_valid_led_default_82571,
+ .validate = e1000_validate_nvm_checksum_82571,
+ .write = e1000_write_nvm_82571,
+};
+
+const struct e1000_info e1000_82571_info = {
+ .mac = e1000_82571,
+ .flags = FLAG_HAS_HW_VLAN_FILTER
+ | FLAG_HAS_JUMBO_FRAMES
+ | FLAG_HAS_WOL
+ | FLAG_APME_IN_CTRL3
+#ifndef HAVE_NDO_SET_FEATURES
+ | FLAG_RX_CSUM_ENABLED
+#endif
+ | FLAG_HAS_CTRLEXT_ON_LOAD
+ | FLAG_HAS_SMART_POWER_DOWN
+ | FLAG_RESET_OVERWRITES_LAA /* errata */
+ | FLAG_TARC_SPEED_MODE_BIT /* errata */
+ | FLAG_APME_CHECK_PORT_B,
+ .flags2 = FLAG2_DISABLE_ASPM_L1 /* errata 13 */
+ | FLAG2_DMA_BURST,
+ .pba = 38,
+ .max_hw_frame_size = DEFAULT_JUMBO,
+ .get_variants = e1000_get_variants_82571,
+ .mac_ops = &e82571_mac_ops,
+ .phy_ops = &e82_phy_ops_igp,
+ .nvm_ops = &e82571_nvm_ops,
+};
+
+const struct e1000_info e1000_82572_info = {
+ .mac = e1000_82572,
+ .flags = FLAG_HAS_HW_VLAN_FILTER
+ | FLAG_HAS_JUMBO_FRAMES
+ | FLAG_HAS_WOL
+ | FLAG_APME_IN_CTRL3
+#ifndef HAVE_NDO_SET_FEATURES
+ | FLAG_RX_CSUM_ENABLED
+#endif
+ | FLAG_HAS_CTRLEXT_ON_LOAD
+ | FLAG_TARC_SPEED_MODE_BIT, /* errata */
+ .flags2 = FLAG2_DISABLE_ASPM_L1 /* errata 13 */
+ | FLAG2_DMA_BURST,
+ .pba = 38,
+ .max_hw_frame_size = DEFAULT_JUMBO,
+ .get_variants = e1000_get_variants_82571,
+ .mac_ops = &e82571_mac_ops,
+ .phy_ops = &e82_phy_ops_igp,
+ .nvm_ops = &e82571_nvm_ops,
+};
+
+const struct e1000_info e1000_82573_info = {
+ .mac = e1000_82573,
+ .flags = FLAG_HAS_HW_VLAN_FILTER
+ | FLAG_HAS_WOL
+ | FLAG_APME_IN_CTRL3
+#ifndef HAVE_NDO_SET_FEATURES
+ | FLAG_RX_CSUM_ENABLED
+#endif
+ | FLAG_HAS_SMART_POWER_DOWN
+ | FLAG_HAS_AMT
+ | FLAG_HAS_SWSM_ON_LOAD,
+ .flags2 = FLAG2_DISABLE_ASPM_L1
+ | FLAG2_DISABLE_ASPM_L0S,
+ .pba = 20,
+ .max_hw_frame_size = VLAN_ETH_FRAME_LEN + ETH_FCS_LEN,
+ .get_variants = e1000_get_variants_82571,
+ .mac_ops = &e82571_mac_ops,
+ .phy_ops = &e82_phy_ops_m88,
+ .nvm_ops = &e82571_nvm_ops,
+};
+
+const struct e1000_info e1000_82574_info = {
+ .mac = e1000_82574,
+ .flags = FLAG_HAS_HW_VLAN_FILTER
+ | FLAG_HAS_MSIX
+ | FLAG_HAS_JUMBO_FRAMES
+ | FLAG_HAS_WOL
+ | FLAG_HAS_HW_TIMESTAMP
+ | FLAG_APME_IN_CTRL3
+#ifndef HAVE_NDO_SET_FEATURES
+ | FLAG_RX_CSUM_ENABLED
+#endif
+ | FLAG_HAS_SMART_POWER_DOWN
+ | FLAG_HAS_AMT
+ | FLAG_HAS_CTRLEXT_ON_LOAD,
+ .flags2 = FLAG2_CHECK_PHY_HANG
+ | FLAG2_DISABLE_ASPM_L0S
+ | FLAG2_DISABLE_ASPM_L1
+ | FLAG2_NO_DISABLE_RX
+ | FLAG2_DMA_BURST
+ /* Factor out systim sanitization,
+ * added flag.
+ */
+ | FLAG2_CHECK_SYSTIM_OVERFLOW,
+ .pba = 32,
+ .max_hw_frame_size = DEFAULT_JUMBO,
+ .get_variants = e1000_get_variants_82571,
+ .mac_ops = &e82571_mac_ops,
+ .phy_ops = &e82_phy_ops_bm,
+ .nvm_ops = &e82571_nvm_ops,
+};
+
+const struct e1000_info e1000_82583_info = {
+ .mac = e1000_82583,
+ .flags = FLAG_HAS_HW_VLAN_FILTER
+ | FLAG_HAS_WOL
+ | FLAG_HAS_HW_TIMESTAMP
+ | FLAG_APME_IN_CTRL3
+#ifndef HAVE_NDO_SET_FEATURES
+ | FLAG_RX_CSUM_ENABLED
+#endif
+ | FLAG_HAS_SMART_POWER_DOWN
+ | FLAG_HAS_AMT
+ | FLAG_HAS_JUMBO_FRAMES
+ | FLAG_HAS_CTRLEXT_ON_LOAD,
+ .flags2 = FLAG2_DISABLE_ASPM_L0S
+ | FLAG2_DISABLE_ASPM_L1
+ | FLAG2_NO_DISABLE_RX
+ /* Factor out systim sanitization,
+ * added flag.
+ */
+ | FLAG2_CHECK_SYSTIM_OVERFLOW,
+ .pba = 32,
+ .max_hw_frame_size = DEFAULT_JUMBO,
+ .get_variants = e1000_get_variants_82571,
+ .mac_ops = &e82571_mac_ops,
+ .phy_ops = &e82_phy_ops_bm,
+ .nvm_ops = &e82571_nvm_ops,
+};
diff --git a/src/82571.h b/src/82571.h
new file mode 100644
index 0000000..b24e6d6
--- /dev/null
+++ b/src/82571.h
@@ -0,0 +1,35 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/* Copyright(c) 1999 - 2020 Intel Corporation. */
+
+#ifndef _E1000E_82571_H_
+#define _E1000E_82571_H_
+
+#define ID_LED_RESERVED_F746 0xF746
+#define ID_LED_DEFAULT_82573 ((ID_LED_DEF1_DEF2 << 12) | \
+ (ID_LED_OFF1_ON2 << 8) | \
+ (ID_LED_DEF1_DEF2 << 4) | \
+ (ID_LED_DEF1_DEF2))
+
+#define E1000_GCR_L1_ACT_WITHOUT_L0S_RX 0x08000000
+#define AN_RETRY_COUNT 5 /* Autoneg Retry Count value */
+
+/* Intr Throttling - RW */
+#define E1000_EITR_82574(_n) (0x000E8 + (0x4 * (_n)))
+
+#define E1000_EIAC_82574 0x000DC /* Ext. Interrupt Auto Clear - RW */
+#define E1000_EIAC_MASK_82574 0x01F00000
+
+#define E1000_IVAR_INT_ALLOC_VALID 0x8
+
+/* Manageability Operation Mode mask */
+#define E1000_NVM_INIT_CTRL2_MNGM 0x6000
+
+#define E1000_BASE1000T_STATUS 10
+#define E1000_IDLE_ERROR_COUNT_MASK 0xFF
+#define E1000_RECEIVE_ERROR_COUNTER 21
+#define E1000_RECEIVE_ERROR_MAX 0xFFFF
+bool e1000_check_phy_82574(struct e1000_hw *hw);
+bool e1000e_get_laa_state_82571(struct e1000_hw *hw);
+void e1000e_set_laa_state_82571(struct e1000_hw *hw, bool state);
+
+#endif
diff --git a/src/Makefile b/src/Makefile
new file mode 100644
index 0000000..9af58b1
--- /dev/null
+++ b/src/Makefile
@@ -0,0 +1,156 @@
+# SPDX-License-Identifier: GPL-2.0
+# Copyright(c) 1999 - 2020 Intel Corporation.
+
+#ifndef REMOVE_COMPAT
+ifneq ($(KERNELRELEASE),)
+# kbuild part of makefile
+#endif /* REMOVE_COMPAT */
+#
+# Makefile for the @SUMMARY@
+#
+
+obj-$(CONFIG_E1000E) += e1000e.o
+
+define e1000e-y
+ netdev.o
+ ethtool.o
+ ich8lan.o
+ mac.o
+ nvm.o
+ phy.o
+ manage.o
+ 80003es2lan.o
+ 82571.o
+ param.o
+endef
+e1000e-y := $(strip ${e1000e-y})
+
+#ifdef BUILD_PTP_SUPPORT
+e1000e-$(CONFIG_PTP_1588_CLOCK:m=y) += ptp.o
+#endif
+
+#ifndef REMOVE_COMPAT
+
+e1000e-y += kcompat.o
+
+else # ifneq($(KERNELRELEASE),)
+# normal makefile
+
+DRIVER := e1000e
+
+ifeq (,$(wildcard common.mk))
+ $(error Cannot find common.mk build rules)
+else
+ include common.mk
+endif
+
+# Check that kernel version is at least 2.4.17
+ifeq (0,$(shell [ ${KVER_CODE} -lt $(call get_kvercode,2,4,17) ]; echo "$?"))
+ $(warning *** Aborting the build.)
+ $(error This driver is not supported on kernel versions older than 2.4.17)
+endif
+
+######################
+# Kernel Build Macro #
+######################
+
+# customized kernelbuild function
+#
+# ${1} is the kernel build target
+# ${2} may contain extra rules to pass to kernelbuild macro
+#
+# We customize the kernelbuild target in order to provide our hack to disable
+# CONFIG_PTP_1588_CLOCK support should -DNO_PTP_SUPPORT be defined in the extra
+# cflags given on the command line.
+devkernelbuild = $(call kernelbuild,$(if $(filter -DNO_PTP_SUPPORT,${EXTRA_CFLAGS}),CONFIG_PTP_1588_CLOCK=n) ${2},${1})
+
+###############
+# Build rules #
+###############
+
+# Standard compilation, with regular output
+default:
+ @+$(call devkernelbuild,modules)
+
+# Noisy output, for extra debugging
+noisy:
+ @+$(call devkernelbuild,modules,V=1)
+
+# Silence any output generated
+silent:
+ @+$(call devkernelbuild,modules,>/dev/null)
+
+# Enable higher warning level
+checkwarnings: clean
+ @+$(call devkernelbuild,modules,W=1)
+
+# Run sparse static analyzer
+sparse: clean
+ @+$(call devkernelbuild,modules,C=2 CF="-D__CHECK_ENDIAN__ -Wbitwise -Wcontext")
+
+# Run coccicheck static analyzer
+ccc: clean
+ @+$(call devkernelbuild,modules,coccicheck MODE=report))
+
+# Build manfiles
+manfile:
+ @gzip -c ../${DRIVER}.${MANSECTION} > ${DRIVER}.${MANSECTION}.gz
+
+# Clean the module subdirectories
+clean:
+ @+$(call devkernelbuild,clean)
+ @-rm -rf *.${MANSECTION}.gz *.ko
+
+# Install the modules and manpage
+install: default manfile
+ @echo "Copying manpages..."
+ @install -D -m 644 ${DRIVER}.${MANSECTION}.gz ${INSTALL_MOD_PATH}${MANDIR}/man${MANSECTION}/${DRIVER}.${MANSECTION}.gz
+ @echo "Installing modules..."
+ @+$(call devkernelbuild,modules_install)
+ @echo "Running depmod..."
+ @$(call cmd_depmod)
+
+# Target used by rpmbuild spec file
+rpm: default manfile
+ @install -D -m 644 ${DRIVER}.${MANSECTION}.gz ${INSTALL_MOD_PATH}${MANDIR}/man${MANSECTION}/${DRIVER}.${MANSECTION}.gz
+ @install -D -m 644 ${DRIVER}.ko ${INSTALL_MOD_PATH}/lib/modules/${KVER}/${INSTALL_MOD_DIR}/${DRIVER}.ko
+
+uninstall:
+ rm -f ${INSTALL_MOD_PATH}/lib/modules/${KVER}/${INSTALL_MOD_DIR}/${DRIVER}.ko;
+ $(call cmd_depmod)
+ if [ -e ${INSTALL_MOD_PATH}${MANDIR}/man${MANSECTION}/${DRIVER}.${MANSECTION}.gz ] ; then \
+ rm -f ${INSTALL_MOD_PATH}${MANDIR}/man${MANSECTION}/${DRIVER}.${MANSECTION}.gz ; \
+ fi;
+
+########
+# Help #
+########
+help:
+ @echo 'Cleaning targets:'
+ @echo ' clean - Clean files generated by kernel module build'
+ @echo 'Build targets:'
+ @echo ' default - Build module(s) with standard verbosity'
+ @echo ' noisy - Build module(s) with V=1 verbosity -- very noisy'
+ @echo ' silent - Build module(s), squelching all output'
+ @echo 'Static Analysis:'
+ @echo ' checkwarnings - Clean, then build module(s) with W=1 warnings enabled'
+ @echo ' sparse - Clean, then check module(s) using sparse'
+ @echo ' ccc - Clean, then check module(s) using coccicheck'
+ @echo 'Other targets:'
+ @echo ' manfile - Generate a gzipped manpage'
+ @echo ' install - Build then install the module(s) and manpage'
+ @echo ' uninstall - Uninstall the module(s) and manpage'
+ @echo ' help - Display this help message'
+ @echo 'Variables:'
+ @echo ' LINUX_VERSION - Debug tool to force kernel LINUX_VERSION_CODE. Use at your own risk.'
+ @echo ' W=N - Kernel variable for setting warning levels'
+ @echo ' V=N - Kernel variable for setting output verbosity'
+ @echo ' INSTALL_MOD_PATH - Add prefix for the module and manpage installation path'
+ @echo ' INSTALL_MOD_DIR - Use module directory other than updates/drivers/net/ethernet/intel/${DRIVER}'
+ @echo ' Other variables may be available for tuning make process, see'
+ @echo ' Kernel Kbuild documentation for more information'
+
+.PHONY: default noisy clean manfile silent sparse ccc install uninstall help
+
+endif # ifneq($(KERNELRELEASE),)
+#endif /* REMOVE_COMPAT */
diff --git a/src/Module.supported b/src/Module.supported
new file mode 100644
index 0000000..e01fe91
--- /dev/null
+++ b/src/Module.supported
@@ -0,0 +1 @@
+e1000e.ko external
diff --git a/src/common.mk b/src/common.mk
new file mode 100644
index 0000000..c1fc2ad
--- /dev/null
+++ b/src/common.mk
@@ -0,0 +1,358 @@
+#ifdef DEFAULT_LICENSE
+# SPDX-License-Identifier: GPL-2.0-only
+#endif
+#ifdef DEFAULT_COPYRIGHT
+# Copyright (C) 2015-2019 Intel Corporation
+#endif
+#
+# common Makefile rules useful for out-of-tree Linux driver builds
+#
+# Usage: include common.mk
+#
+# After including, you probably want to add a minimum_kver_check call
+#
+# Required Variables:
+# DRIVER
+# -- Set to the lowercase driver name
+
+#####################
+# Helpful functions #
+#####################
+
+readlink = $(shell readlink -f ${1})
+
+# helper functions for converting kernel version to version codes
+get_kver = $(or $(word ${2},$(subst ., ,${1})),0)
+get_kvercode = $(shell [ "${1}" -ge 0 -a "${1}" -le 255 2>/dev/null ] && \
+ [ "${2}" -ge 0 -a "${2}" -le 255 2>/dev/null ] && \
+ [ "${3}" -ge 0 -a "${3}" -le 255 2>/dev/null ] && \
+ printf %d $$(( ( ${1} << 16 ) + ( ${2} << 8 ) + ( ${3} ) )) )
+
+################
+# depmod Macro #
+################
+
+cmd_depmod = /sbin/depmod $(if ${SYSTEM_MAP_FILE},-e -F ${SYSTEM_MAP_FILE}) \
+ $(if $(strip ${INSTALL_MOD_PATH}),-b ${INSTALL_MOD_PATH}) \
+ -a ${KVER}
+
+################
+# dracut Macro #
+################
+
+cmd_initrd := $(shell \
+ if which dracut > /dev/null 2>&1 ; then \
+ echo "dracut --force"; \
+ elif which update-initramfs > /dev/null 2>&1 ; then \
+ echo "update-initramfs -u"; \
+ fi )
+
+#####################
+# Environment tests #
+#####################
+
+DRIVER_UPPERCASE := $(shell echo ${DRIVER} | tr "[:lower:]" "[:upper:]")
+
+ifeq (,${BUILD_KERNEL})
+BUILD_KERNEL=$(shell uname -r)
+endif
+
+# Kernel Search Path
+# All the places we look for kernel source
+KSP := /lib/modules/${BUILD_KERNEL}/source \
+ /lib/modules/${BUILD_KERNEL}/build \
+ /usr/src/linux-${BUILD_KERNEL} \
+ /usr/src/linux-$(${BUILD_KERNEL} | sed 's/-.*//') \
+ /usr/src/kernel-headers-${BUILD_KERNEL} \
+ /usr/src/kernel-source-${BUILD_KERNEL} \
+ /usr/src/linux-$(${BUILD_KERNEL} | sed 's/\([0-9]*\.[0-9]*\)\..*/\1/') \
+ /usr/src/linux \
+ /usr/src/kernels/${BUILD_KERNEL} \
+ /usr/src/kernels
+
+# prune the list down to only values that exist and have an include/linux
+# sub-directory. We can't use include/config because some older kernels don't
+# have this.
+test_dir = $(shell [ -e ${dir}/include/linux ] && echo ${dir})
+KSP := $(foreach dir, ${KSP}, ${test_dir})
+
+# we will use this first valid entry in the search path
+ifeq (,${KSRC})
+ KSRC := $(firstword ${KSP})
+endif
+
+ifeq (,${KSRC})
+ $(warning *** Kernel header files not in any of the expected locations.)
+ $(warning *** Install the appropriate kernel development package, e.g.)
+ $(error kernel-devel, for building kernel modules and try again)
+else
+ifeq (/lib/modules/${BUILD_KERNEL}/source, ${KSRC})
+ KOBJ := /lib/modules/${BUILD_KERNEL}/build
+else
+ KOBJ := ${KSRC}
+endif
+endif
+
+# Version file Search Path
+VSP := ${KOBJ}/include/generated/utsrelease.h \
+ ${KOBJ}/include/linux/utsrelease.h \
+ ${KOBJ}/include/linux/version.h \
+ ${KOBJ}/include/generated/uapi/linux/version.h \
+ /boot/vmlinuz.version.h
+
+# Config file Search Path
+CSP := ${KOBJ}/include/generated/autoconf.h \
+ ${KOBJ}/include/linux/autoconf.h \
+ /boot/vmlinuz.autoconf.h
+
+# System.map Search Path (for depmod)
+MSP := ${KSRC}/System.map \
+ /boot/System.map-${BUILD_KERNEL}
+
+# prune the lists down to only files that exist
+test_file = $(shell [ -f ${file} ] && echo ${file})
+VSP := $(foreach file, ${VSP}, ${test_file})
+CSP := $(foreach file, ${CSP}, ${test_file})
+MSP := $(foreach file, ${MSP}, ${test_file})
+
+#ifdef CORE_MAKE_USE_ISYSTEM
+ifneq ($(wildcard ./gcc-i-sys.sh),)
+GCC_I_SYS := $(call readlink,./gcc-i-sys.sh)
+$(shell chmod +x ${GCC_I_SYS})
+export REAL_CC := ${CC}
+endif
+#endif
+
+# and use the first valid entry in the Search Paths
+ifeq (,${VERSION_FILE})
+ VERSION_FILE := $(firstword ${VSP})
+endif
+
+ifeq (,${CONFIG_FILE})
+ CONFIG_FILE := $(firstword ${CSP})
+endif
+
+ifeq (,${SYSTEM_MAP_FILE})
+ SYSTEM_MAP_FILE := $(firstword ${MSP})
+endif
+
+ifeq (,$(wildcard ${VERSION_FILE}))
+ $(error Linux kernel source not configured - missing version header file)
+endif
+
+ifeq (,$(wildcard ${CONFIG_FILE}))
+ $(error Linux kernel source not configured - missing autoconf.h)
+endif
+
+ifeq (,$(wildcard ${SYSTEM_MAP_FILE}))
+ $(warning Missing System.map file - depmod will not check for missing symbols)
+endif
+
+ifneq ($(words $(subst :, ,$(CURDIR))), 1)
+ $(error Sources directory '$(CURDIR)' cannot contain spaces nor colons. Rename directory or move sources to another path)
+endif
+
+########################
+# Extract config value #
+########################
+
+get_config_value = $(shell ${CC} -E -dM ${CONFIG_FILE} 2> /dev/null |\
+ grep -m 1 ${1} | awk '{ print $$3 }')
+
+########################
+# Check module signing #
+########################
+
+CONFIG_MODULE_SIG_ALL := $(call get_config_value,CONFIG_MODULE_SIG_ALL)
+CONFIG_MODULE_SIG_FORCE := $(call get_config_value,CONFIG_MODULE_SIG_FORCE)
+CONFIG_MODULE_SIG_KEY := $(call get_config_value,CONFIG_MODULE_SIG_KEY)
+
+SIG_KEY_SP := ${KOBJ}/${CONFIG_MODULE_SIG_KEY} \
+ ${KOBJ}/certs/signing_key.pem
+
+SIG_KEY_FILE := $(firstword $(foreach file, ${SIG_KEY_SP}, ${test_file}))
+
+# print a warning if the kernel configuration attempts to sign modules but
+# the signing key can't be found.
+ifneq (${SIG_KEY_FILE},)
+warn_signed_modules := : ;
+else
+warn_signed_modules :=
+ifeq (${CONFIG_MODULE_SIG_ALL},1)
+warn_signed_modules += \
+ echo "*** The target kernel has CONFIG_MODULE_SIG_ALL enabled, but" ; \
+ echo "*** the signing key cannot be found. Module signing has been" ; \
+ echo "*** disabled for this build." ;
+endif # CONFIG_MODULE_SIG_ALL=y
+ifeq (${CONFIG_MODULE_SIG_FORCE},1)
+ echo "warning: The target kernel has CONFIG_MODULE_SIG_FORCE enabled," ; \
+ echo "warning: but the signing key cannot be found. The module must" ; \
+ echo "warning: be signed manually using 'scripts/sign-file'." ;
+endif # CONFIG_MODULE_SIG_FORCE
+DISABLE_MODULE_SIGNING := Yes
+endif
+
+#######################
+# Linux Version Setup #
+#######################
+
+# The following command line parameter is intended for development of KCOMPAT
+# against upstream kernels such as net-next which have broken or non-updated
+# version codes in their Makefile. They are intended for debugging and
+# development purpose only so that we can easily test new KCOMPAT early. If you
+# don't know what this means, you do not need to set this flag. There is no
+# arcane magic here.
+
+# Convert LINUX_VERSION into LINUX_VERSION_CODE
+ifneq (${LINUX_VERSION},)
+ LINUX_VERSION_CODE=$(call get_kvercode,$(call get_kver,${LINUX_VERSION},1),$(call get_kver,${LINUX_VERSION},2),$(call get_kver,${LINUX_VERSION},3))
+endif
+
+# Honor LINUX_VERSION_CODE
+ifneq (${LINUX_VERSION_CODE},)
+ $(warning Forcing target kernel to build with LINUX_VERSION_CODE of ${LINUX_VERSION_CODE}$(if ${LINUX_VERSION}, from LINUX_VERSION=${LINUX_VERSION}). Do this at your own risk.)
+ KVER_CODE := ${LINUX_VERSION_CODE}
+ EXTRA_CFLAGS += -DLINUX_VERSION_CODE=${LINUX_VERSION_CODE}
+endif
+
+# Determine SLE_LOCALVERSION_CODE for SuSE SLE >= 11 (needed by kcompat)
+# This assumes SuSE will continue setting CONFIG_LOCALVERSION to the string
+# appended to the stable kernel version on which their kernel is based with
+# additional versioning information (up to 3 numbers), a possible abbreviated
+# git SHA1 commit id and a kernel type, e.g. CONFIG_LOCALVERSION=-1.2.3-default
+# or CONFIG_LOCALVERSION=-999.gdeadbee-default
+ifeq (1,$(call get_config_value,CONFIG_SUSE_KERNEL))
+
+ifneq (10,$(call get_config_value,CONFIG_SLE_VERSION))
+
+ CONFIG_LOCALVERSION := $(call get_config_value,CONFIG_LOCALVERSION)
+ LOCALVERSION := $(shell echo ${CONFIG_LOCALVERSION} | \
+ cut -d'-' -f2 | sed 's/\.g[[:xdigit:]]\{7\}//')
+ LOCALVER_A := $(shell echo ${LOCALVERSION} | cut -d'.' -f1)
+ LOCALVER_B := $(shell echo ${LOCALVERSION} | cut -s -d'.' -f2)
+ LOCALVER_C := $(shell echo ${LOCALVERSION} | cut -s -d'.' -f3)
+ SLE_LOCALVERSION_CODE := $(shell expr ${LOCALVER_A} \* 65536 + \
+ 0${LOCALVER_B} \* 256 + 0${LOCALVER_C})
+ EXTRA_CFLAGS += -DSLE_LOCALVERSION_CODE=${SLE_LOCALVERSION_CODE}
+endif
+endif
+
+EXTRA_CFLAGS += ${CFLAGS_EXTRA}
+
+# get the kernel version - we use this to find the correct install path
+KVER := $(shell ${CC} ${EXTRA_CFLAGS} -E -dM ${VERSION_FILE} | grep UTS_RELEASE | \
+ awk '{ print $$3 }' | sed 's/\"//g')
+
+# assume source symlink is the same as build, otherwise adjust KOBJ
+ifneq (,$(wildcard /lib/modules/${KVER}/build))
+ ifneq (${KSRC},$(call readlink,/lib/modules/${KVER}/build))
+ KOBJ=/lib/modules/${KVER}/build
+ endif
+endif
+
+ifeq (${KVER_CODE},)
+ KVER_CODE := $(shell ${CC} ${EXTRA_CFLAGS} -E -dM ${VSP} 2> /dev/null |\
+ grep -m 1 LINUX_VERSION_CODE | awk '{ print $$3 }' | sed 's/\"//g')
+endif
+
+# minimum_kver_check
+#
+# helper function to provide uniform output for different drivers to abort the
+# build based on kernel version check. Usage: "$(call minimum_kver_check,2,6,XX)".
+define _minimum_kver_check
+ifeq (0,$(shell [ ${KVER_CODE} -lt $(call get_kvercode,${1},${2},${3}) ]; echo "$$?"))
+ $$(warning *** Aborting the build.)
+ $$(error This driver is not supported on kernel versions older than ${1}.${2}.${3})
+endif
+endef
+minimum_kver_check = $(eval $(call _minimum_kver_check,${1},${2},${3}))
+
+################
+# Manual Pages #
+################
+
+MANSECTION = 7
+
+ifeq (,${MANDIR})
+ # find the best place to install the man page
+ MANPATH := $(shell (manpath 2>/dev/null || echo $MANPATH) | sed 's/:/ /g')
+ ifneq (,${MANPATH})
+ # test based on inclusion in MANPATH
+ test_dir = $(findstring ${dir}, ${MANPATH})
+ else
+ # no MANPATH, test based on directory existence
+ test_dir = $(shell [ -e ${dir} ] && echo ${dir})
+ endif
+ # our preferred install path
+ # should /usr/local/man be in here ?
+ MANDIR := /usr/share/man /usr/man
+ MANDIR := $(foreach dir, ${MANDIR}, ${test_dir})
+ MANDIR := $(firstword ${MANDIR})
+endif
+ifeq (,${MANDIR})
+ # fallback to /usr/man
+ MANDIR := /usr/man
+endif
+
+####################
+# CCFLAGS variable #
+####################
+
+# set correct CCFLAGS variable for kernels older than 2.6.24
+ifeq (0,$(shell [ ${KVER_CODE} -lt $(call get_kvercode,2,6,24) ]; echo $$?))
+CCFLAGS_VAR := EXTRA_CFLAGS
+else
+CCFLAGS_VAR := ccflags-y
+endif
+
+#################
+# KBUILD_OUTPUT #
+#################
+
+# Only set KBUILD_OUTPUT if the real paths of KOBJ and KSRC differ
+ifneq ($(call readlink,${KSRC}),$(call readlink,${KOBJ}))
+export KBUILD_OUTPUT ?= ${KOBJ}
+endif
+
+############################
+# Module Install Directory #
+############################
+
+# Default to using updates/drivers/net/ethernet/intel/ path, since depmod since
+# v3.1 defaults to checking updates folder first, and only checking kernels/
+# and extra afterwards. We use updates instead of kernel/* due to desire to
+# prevent over-writing built-in modules files.
+export INSTALL_MOD_DIR ?= updates/drivers/net/ethernet/intel/${DRIVER}
+
+######################
+# Kernel Build Macro #
+######################
+
+# kernel build function
+# ${1} is the kernel build target
+# ${2} may contain any extra rules to pass directly to the sub-make process
+#
+# This function is expected to be executed by
+# @+$(call kernelbuild,<target>,<extra parameters>)
+# from within a Makefile recipe.
+#
+# The following variables are expected to be defined for its use:
+# GCC_I_SYS -- if set it will enable use of gcc-i-sys.sh wrapper to use -isystem
+# CCFLAGS_VAR -- the CCFLAGS variable to set extra CFLAGS
+# EXTRA_CFLAGS -- a set of extra CFLAGS to pass into the ccflags-y variable
+# KSRC -- the location of the kernel source tree to build against
+# DRIVER_UPPERCASE -- the uppercase name of the kernel module, set from DRIVER
+# W -- if set, enables the W= kernel warnings options
+# C -- if set, enables the C= kernel sparse build options
+#
+kernelbuild = $(call warn_signed_modules) \
+ ${MAKE} $(if ${GCC_I_SYS},CC="${GCC_I_SYS}") \
+ ${CCFLAGS_VAR}="${EXTRA_CFLAGS}" \
+ -C "${KSRC}" \
+ CONFIG_${DRIVER_UPPERCASE}=m \
+ $(if ${DISABLE_MODULE_SIGNING},CONFIG_MODULE_SIG=n) \
+ $(if ${DISABLE_MODULE_SIGNING},CONFIG_MODULE_SIG_ALL=) \
+ M="${CURDIR}" \
+ $(if ${W},W="${W}") \
+ $(if ${C},C="${C}") \
+ ${2} ${1}
diff --git a/src/defines.h b/src/defines.h
new file mode 100644
index 0000000..f46802c
--- /dev/null
+++ b/src/defines.h
@@ -0,0 +1,813 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/* Copyright(c) 1999 - 2020 Intel Corporation. */
+
+#ifndef _E1000E_DEFINES_H_
+#define _E1000E_DEFINES_H_
+
+/* Number of Transmit and Receive Descriptors must be a multiple of 8 */
+#define REQ_TX_DESCRIPTOR_MULTIPLE 8
+#define REQ_RX_DESCRIPTOR_MULTIPLE 8
+
+/* Definitions for power management and wakeup registers */
+/* Wake Up Control */
+#define E1000_WUC_APME 0x00000001 /* APM Enable */
+#define E1000_WUC_PME_EN 0x00000002 /* PME Enable */
+#define E1000_WUC_PME_STATUS 0x00000004 /* PME Status */
+#define E1000_WUC_APMPME 0x00000008 /* Assert PME on APM Wakeup */
+#define E1000_WUC_PHY_WAKE 0x00000100 /* if PHY supports wakeup */
+
+/* Wake Up Filter Control */
+#define E1000_WUFC_LNKC 0x00000001 /* Link Status Change Wakeup Enable */
+#define E1000_WUFC_MAG 0x00000002 /* Magic Packet Wakeup Enable */
+#define E1000_WUFC_EX 0x00000004 /* Directed Exact Wakeup Enable */
+#define E1000_WUFC_MC 0x00000008 /* Directed Multicast Wakeup Enable */
+#define E1000_WUFC_BC 0x00000010 /* Broadcast Wakeup Enable */
+#define E1000_WUFC_ARP 0x00000020 /* ARP Request Packet Wakeup Enable */
+
+/* Wake Up Status */
+#define E1000_WUS_LNKC E1000_WUFC_LNKC
+#define E1000_WUS_MAG E1000_WUFC_MAG
+#define E1000_WUS_EX E1000_WUFC_EX
+#define E1000_WUS_MC E1000_WUFC_MC
+#define E1000_WUS_BC E1000_WUFC_BC
+
+/* Extended Device Control */
+#define E1000_CTRL_EXT_LPCD 0x00000004 /* LCD Power Cycle Done */
+#define E1000_CTRL_EXT_SDP3_DATA 0x00000080 /* SW Definable Pin 3 data */
+#define E1000_CTRL_EXT_FORCE_SMBUS 0x00000800 /* Force SMBus mode */
+#define E1000_CTRL_EXT_EE_RST 0x00002000 /* Reinitialize from EEPROM */
+#define E1000_CTRL_EXT_SPD_BYPS 0x00008000 /* Speed Select Bypass */
+#define E1000_CTRL_EXT_RO_DIS 0x00020000 /* Relaxed Ordering disable */
+#define E1000_CTRL_EXT_DMA_DYN_CLK_EN 0x00080000 /* DMA Dynamic Clk Gating */
+#define E1000_CTRL_EXT_LINK_MODE_MASK 0x00C00000
+#define E1000_CTRL_EXT_LINK_MODE_PCIE_SERDES 0x00C00000
+#define E1000_CTRL_EXT_EIAME 0x01000000
+#define E1000_CTRL_EXT_DRV_LOAD 0x10000000 /* Drv loaded bit for FW */
+#define E1000_CTRL_EXT_IAME 0x08000000 /* Int ACK Auto-mask */
+#define E1000_CTRL_EXT_PBA_CLR 0x80000000 /* PBA Clear */
+#define E1000_CTRL_EXT_LSECCK 0x00001000
+#define E1000_CTRL_EXT_PHYPDEN 0x00100000
+
+/* Receive Descriptor bit definitions */
+#define E1000_RXD_STAT_DD 0x01 /* Descriptor Done */
+#define E1000_RXD_STAT_EOP 0x02 /* End of Packet */
+#define E1000_RXD_STAT_IXSM 0x04 /* Ignore checksum */
+#define E1000_RXD_STAT_VP 0x08 /* IEEE VLAN Packet */
+#define E1000_RXD_STAT_UDPCS 0x10 /* UDP xsum calculated */
+#define E1000_RXD_STAT_TCPCS 0x20 /* TCP xsum calculated */
+#define E1000_RXD_ERR_CE 0x01 /* CRC Error */
+#define E1000_RXD_ERR_SE 0x02 /* Symbol Error */
+#define E1000_RXD_ERR_SEQ 0x04 /* Sequence Error */
+#define E1000_RXD_ERR_CXE 0x10 /* Carrier Extension Error */
+#define E1000_RXD_ERR_TCPE 0x20 /* TCP/UDP Checksum Error */
+#define E1000_RXD_ERR_IPE 0x40 /* IP Checksum Error */
+#define E1000_RXD_ERR_RXE 0x80 /* Rx Data Error */
+#define E1000_RXD_SPC_VLAN_MASK 0x0FFF /* VLAN ID is in lower 12 bits */
+
+#define E1000_RXDEXT_STATERR_TST 0x00000100 /* Time Stamp taken */
+#define E1000_RXDEXT_STATERR_CE 0x01000000
+#define E1000_RXDEXT_STATERR_SE 0x02000000
+#define E1000_RXDEXT_STATERR_SEQ 0x04000000
+#define E1000_RXDEXT_STATERR_CXE 0x10000000
+#define E1000_RXDEXT_STATERR_RXE 0x80000000
+
+/* mask to determine if packets should be dropped due to frame errors */
+#define E1000_RXD_ERR_FRAME_ERR_MASK ( \
+ E1000_RXD_ERR_CE | \
+ E1000_RXD_ERR_SE | \
+ E1000_RXD_ERR_SEQ | \
+ E1000_RXD_ERR_CXE | \
+ E1000_RXD_ERR_RXE)
+
+/* Same mask, but for extended and packet split descriptors */
+#define E1000_RXDEXT_ERR_FRAME_ERR_MASK ( \
+ E1000_RXDEXT_STATERR_CE | \
+ E1000_RXDEXT_STATERR_SE | \
+ E1000_RXDEXT_STATERR_SEQ | \
+ E1000_RXDEXT_STATERR_CXE | \
+ E1000_RXDEXT_STATERR_RXE)
+
+#define E1000_MRQC_RSS_FIELD_MASK 0xFFFF0000
+#define E1000_MRQC_RSS_FIELD_IPV4_TCP 0x00010000
+#define E1000_MRQC_RSS_FIELD_IPV4 0x00020000
+#define E1000_MRQC_RSS_FIELD_IPV6_TCP_EX 0x00040000
+#define E1000_MRQC_RSS_FIELD_IPV6 0x00100000
+#define E1000_MRQC_RSS_FIELD_IPV6_TCP 0x00200000
+
+#define E1000_RXDPS_HDRSTAT_HDRSP 0x00008000
+
+/* Management Control */
+#define E1000_MANC_SMBUS_EN 0x00000001 /* SMBus Enabled - RO */
+#define E1000_MANC_ASF_EN 0x00000002 /* ASF Enabled - RO */
+#define E1000_MANC_ARP_EN 0x00002000 /* Enable ARP Request Filtering */
+#define E1000_MANC_RCV_TCO_EN 0x00020000 /* Receive TCO Packets Enabled */
+#define E1000_MANC_BLK_PHY_RST_ON_IDE 0x00040000 /* Block phy resets */
+/* Enable MAC address filtering */
+#define E1000_MANC_EN_MAC_ADDR_FILTER 0x00100000
+/* Enable MNG packets to host memory */
+#define E1000_MANC_EN_MNG2HOST 0x00200000
+
+#define E1000_MANC2H_PORT_623 0x00000020 /* Port 0x26f */
+#define E1000_MANC2H_PORT_664 0x00000040 /* Port 0x298 */
+#define E1000_MDEF_PORT_623 0x00000800 /* Port 0x26f */
+#define E1000_MDEF_PORT_664 0x00000400 /* Port 0x298 */
+
+/* Receive Control */
+#define E1000_RCTL_EN 0x00000002 /* enable */
+#define E1000_RCTL_SBP 0x00000004 /* store bad packet */
+#define E1000_RCTL_UPE 0x00000008 /* unicast promisc enable */
+#define E1000_RCTL_MPE 0x00000010 /* multicast promisc enable */
+#define E1000_RCTL_LPE 0x00000020 /* long packet enable */
+#define E1000_RCTL_LBM_NO 0x00000000 /* no loopback mode */
+#define E1000_RCTL_LBM_MAC 0x00000040 /* MAC loopback mode */
+#define E1000_RCTL_LBM_TCVR 0x000000C0 /* tcvr loopback mode */
+#define E1000_RCTL_DTYP_PS 0x00000400 /* Packet Split descriptor */
+#define E1000_RCTL_RDMTS_HALF 0x00000000 /* Rx desc min thresh size */
+#define E1000_RCTL_RDMTS_HEX 0x00010000
+#define E1000_RCTL_RDMTS1_HEX E1000_RCTL_RDMTS_HEX
+#define E1000_RCTL_MO_SHIFT 12 /* multicast offset shift */
+#define E1000_RCTL_MO_3 0x00003000 /* multicast offset 15:4 */
+#define E1000_RCTL_BAM 0x00008000 /* broadcast enable */
+/* these buffer sizes are valid if E1000_RCTL_BSEX is 0 */
+#define E1000_RCTL_SZ_2048 0x00000000 /* Rx buffer size 2048 */
+#define E1000_RCTL_SZ_1024 0x00010000 /* Rx buffer size 1024 */
+#define E1000_RCTL_SZ_512 0x00020000 /* Rx buffer size 512 */
+#define E1000_RCTL_SZ_256 0x00030000 /* Rx buffer size 256 */
+/* these buffer sizes are valid if E1000_RCTL_BSEX is 1 */
+#define E1000_RCTL_SZ_16384 0x00010000 /* Rx buffer size 16384 */
+#define E1000_RCTL_SZ_8192 0x00020000 /* Rx buffer size 8192 */
+#define E1000_RCTL_SZ_4096 0x00030000 /* Rx buffer size 4096 */
+#define E1000_RCTL_VFE 0x00040000 /* vlan filter enable */
+#define E1000_RCTL_CFIEN 0x00080000 /* canonical form enable */
+#define E1000_RCTL_CFI 0x00100000 /* canonical form indicator */
+#define E1000_RCTL_DPF 0x00400000 /* discard pause frames */
+#define E1000_RCTL_PMCF 0x00800000 /* pass MAC control frames */
+#define E1000_RCTL_BSEX 0x02000000 /* Buffer size extension */
+#define E1000_RCTL_SECRC 0x04000000 /* Strip Ethernet CRC */
+
+/* Use byte values for the following shift parameters
+ * Usage:
+ * psrctl |= (((ROUNDUP(value0, 128) >> E1000_PSRCTL_BSIZE0_SHIFT) &
+ * E1000_PSRCTL_BSIZE0_MASK) |
+ * ((ROUNDUP(value1, 1024) >> E1000_PSRCTL_BSIZE1_SHIFT) &
+ * E1000_PSRCTL_BSIZE1_MASK) |
+ * ((ROUNDUP(value2, 1024) << E1000_PSRCTL_BSIZE2_SHIFT) &
+ * E1000_PSRCTL_BSIZE2_MASK) |
+ * ((ROUNDUP(value3, 1024) << E1000_PSRCTL_BSIZE3_SHIFT) |;
+ * E1000_PSRCTL_BSIZE3_MASK))
+ * where value0 = [128..16256], default=256
+ * value1 = [1024..64512], default=4096
+ * value2 = [0..64512], default=4096
+ * value3 = [0..64512], default=0
+ */
+
+#define E1000_PSRCTL_BSIZE0_MASK 0x0000007F
+#define E1000_PSRCTL_BSIZE1_MASK 0x00003F00
+#define E1000_PSRCTL_BSIZE2_MASK 0x003F0000
+#define E1000_PSRCTL_BSIZE3_MASK 0x3F000000
+
+#define E1000_PSRCTL_BSIZE0_SHIFT 7 /* Shift _right_ 7 */
+#define E1000_PSRCTL_BSIZE1_SHIFT 2 /* Shift _right_ 2 */
+#define E1000_PSRCTL_BSIZE2_SHIFT 6 /* Shift _left_ 6 */
+#define E1000_PSRCTL_BSIZE3_SHIFT 14 /* Shift _left_ 14 */
+
+/* SWFW_SYNC Definitions */
+#define E1000_SWFW_EEP_SM 0x01
+#define E1000_SWFW_PHY0_SM 0x02
+#define E1000_SWFW_PHY1_SM 0x04
+#define E1000_SWFW_CSR_SM 0x08
+
+/* Device Control */
+#define E1000_CTRL_FD 0x00000001 /* Full duplex.0=half; 1=full */
+#define E1000_CTRL_GIO_MASTER_DISABLE 0x00000004 /*Blocks new Master reqs */
+#define E1000_CTRL_LRST 0x00000008 /* Link reset. 0=normal,1=reset */
+#define E1000_CTRL_ASDE 0x00000020 /* Auto-speed detect enable */
+#define E1000_CTRL_SLU 0x00000040 /* Set link up (Force Link) */
+#define E1000_CTRL_ILOS 0x00000080 /* Invert Loss-Of Signal */
+#define E1000_CTRL_SPD_SEL 0x00000300 /* Speed Select Mask */
+#define E1000_CTRL_SPD_10 0x00000000 /* Force 10Mb */
+#define E1000_CTRL_SPD_100 0x00000100 /* Force 100Mb */
+#define E1000_CTRL_SPD_1000 0x00000200 /* Force 1Gb */
+#define E1000_CTRL_FRCSPD 0x00000800 /* Force Speed */
+#define E1000_CTRL_FRCDPX 0x00001000 /* Force Duplex */
+#define E1000_CTRL_LANPHYPC_OVERRIDE 0x00010000 /* SW control of LANPHYPC */
+#define E1000_CTRL_LANPHYPC_VALUE 0x00020000 /* SW value of LANPHYPC */
+#define E1000_CTRL_MEHE 0x00080000 /* Memory Error Handling Enable */
+#define E1000_CTRL_SWDPIN0 0x00040000 /* SWDPIN 0 value */
+#define E1000_CTRL_SWDPIN1 0x00080000 /* SWDPIN 1 value */
+#define E1000_CTRL_ADVD3WUC 0x00100000 /* D3 WUC */
+#define E1000_CTRL_EN_PHY_PWR_MGMT 0x00200000 /* PHY PM enable */
+#define E1000_CTRL_SWDPIO0 0x00400000 /* SWDPIN 0 Input or output */
+#define E1000_CTRL_RST 0x04000000 /* Global reset */
+#define E1000_CTRL_RFCE 0x08000000 /* Receive Flow Control enable */
+#define E1000_CTRL_TFCE 0x10000000 /* Transmit flow control enable */
+#define E1000_CTRL_VME 0x40000000 /* IEEE VLAN mode enable */
+#define E1000_CTRL_PHY_RST 0x80000000 /* PHY Reset */
+
+#define E1000_PCS_LCTL_FORCE_FCTRL 0x80
+
+#define E1000_PCS_LSTS_AN_COMPLETE 0x10000
+
+/* Device Status */
+#define E1000_STATUS_FD 0x00000001 /* Duplex 0=half 1=full */
+#define E1000_STATUS_LU 0x00000002 /* Link up.0=no,1=link */
+#define E1000_STATUS_FUNC_MASK 0x0000000C /* PCI Function Mask */
+#define E1000_STATUS_FUNC_SHIFT 2
+#define E1000_STATUS_FUNC_1 0x00000004 /* Function 1 */
+#define E1000_STATUS_TXOFF 0x00000010 /* transmission paused */
+#define E1000_STATUS_SPEED_MASK 0x000000C0
+#define E1000_STATUS_SPEED_10 0x00000000 /* Speed 10Mb/s */
+#define E1000_STATUS_SPEED_100 0x00000040 /* Speed 100Mb/s */
+#define E1000_STATUS_SPEED_1000 0x00000080 /* Speed 1000Mb/s */
+#define E1000_STATUS_LAN_INIT_DONE 0x00000200 /* Lan Init Compltn by NVM */
+#define E1000_STATUS_PHYRA 0x00000400 /* PHY Reset Asserted */
+#define E1000_STATUS_GIO_MASTER_ENABLE 0x00080000 /* Master request status */
+#define E1000_STATUS_2P5_SKU 0x00001000 /* Val of 2.5GBE SKU strap */
+#define E1000_STATUS_2P5_SKU_OVER 0x00002000 /* Val of 2.5GBE SKU Over */
+#define E1000_STATUS_PCIM_STATE 0x40000000 /* PCIm function state */
+#define PCIM_DMOFF_EXIT_TIMEOUT 100
+
+#define SPEED_2500 2500
+#define HALF_DUPLEX 1
+#define FULL_DUPLEX 2
+
+#define ADVERTISE_10_HALF 0x0001
+#define ADVERTISE_10_FULL 0x0002
+#define ADVERTISE_100_HALF 0x0004
+#define ADVERTISE_100_FULL 0x0008
+#define ADVERTISE_1000_HALF 0x0010 /* Not used, just FYI */
+#define ADVERTISE_1000_FULL 0x0020
+#define ADVERTISE_2500_HALF 0x0040 /* NOT used, just FYI */
+#define ADVERTISE_2500_FULL 0x0080
+
+/* 1000/H is not supported, nor spec-compliant. */
+#define E1000_ALL_SPEED_DUPLEX ( \
+ ADVERTISE_10_HALF | ADVERTISE_10_FULL | ADVERTISE_100_HALF | \
+ ADVERTISE_100_FULL | ADVERTISE_1000_FULL)
+#define E1000_ALL_SPEED_DUPLEX_2500 ( \
+ ADVERTISE_10_HALF | ADVERTISE_10_FULL | ADVERTISE_100_HALF | \
+ ADVERTISE_100_FULL | ADVERTISE_1000_FULL | ADVERTISE_2500_FULL)
+#define E1000_ALL_NOT_GIG ( \
+ ADVERTISE_10_HALF | ADVERTISE_10_FULL | ADVERTISE_100_HALF | \
+ ADVERTISE_100_FULL)
+#define E1000_ALL_100_SPEED (ADVERTISE_100_HALF | ADVERTISE_100_FULL)
+#define E1000_ALL_10_SPEED (ADVERTISE_10_HALF | ADVERTISE_10_FULL)
+#define E1000_ALL_HALF_DUPLEX (ADVERTISE_10_HALF | ADVERTISE_100_HALF)
+
+#define AUTONEG_ADVERTISE_SPEED_DEFAULT E1000_ALL_SPEED_DUPLEX
+#define AUTONEG_ADVERTISE_SPEED_DEFAULT_2500 E1000_ALL_SPEED_DUPLEX_2500
+
+/* LED Control */
+#define E1000_PHY_LED0_MODE_MASK 0x00000007
+#define E1000_PHY_LED0_IVRT 0x00000008
+#define E1000_PHY_LED0_MASK 0x0000001F
+
+#define E1000_LEDCTL_LED0_MODE_MASK 0x0000000F
+#define E1000_LEDCTL_LED0_MODE_SHIFT 0
+#define E1000_LEDCTL_LED0_IVRT 0x00000040
+#define E1000_LEDCTL_LED0_BLINK 0x00000080
+
+#define E1000_LEDCTL_MODE_LINK_UP 0x2
+#define E1000_LEDCTL_MODE_LED_ON 0xE
+#define E1000_LEDCTL_MODE_LED_OFF 0xF
+
+/* Transmit Descriptor bit definitions */
+#define E1000_TXD_DTYP_D 0x00100000 /* Data Descriptor */
+#define E1000_TXD_POPTS_IXSM 0x01 /* Insert IP checksum */
+#define E1000_TXD_POPTS_TXSM 0x02 /* Insert TCP/UDP checksum */
+#define E1000_TXD_CMD_EOP 0x01000000 /* End of Packet */
+#define E1000_TXD_CMD_IFCS 0x02000000 /* Insert FCS (Ethernet CRC) */
+#define E1000_TXD_CMD_IC 0x04000000 /* Insert Checksum */
+#define E1000_TXD_CMD_RS 0x08000000 /* Report Status */
+#define E1000_TXD_CMD_RPS 0x10000000 /* Report Packet Sent */
+#define E1000_TXD_CMD_DEXT 0x20000000 /* Desc extension (0 = legacy) */
+#define E1000_TXD_CMD_VLE 0x40000000 /* Add VLAN tag */
+#define E1000_TXD_CMD_IDE 0x80000000 /* Enable Tidv register */
+#define E1000_TXD_STAT_DD 0x00000001 /* Descriptor Done */
+#define E1000_TXD_STAT_EC 0x00000002 /* Excess Collisions */
+#define E1000_TXD_STAT_LC 0x00000004 /* Late Collisions */
+#define E1000_TXD_STAT_TU 0x00000008 /* Transmit underrun */
+#define E1000_TXD_CMD_TCP 0x01000000 /* TCP packet */
+#define E1000_TXD_CMD_IP 0x02000000 /* IP packet */
+#define E1000_TXD_CMD_TSE 0x04000000 /* TCP Seg enable */
+#define E1000_TXD_STAT_TC 0x00000004 /* Tx Underrun */
+#define E1000_TXD_EXTCMD_TSTAMP 0x00000010 /* IEEE1588 Timestamp packet */
+
+/* Transmit Control */
+#define E1000_TCTL_EN 0x00000002 /* enable Tx */
+#define E1000_TCTL_PSP 0x00000008 /* pad short packets */
+#define E1000_TCTL_CT 0x00000ff0 /* collision threshold */
+#define E1000_TCTL_COLD 0x003ff000 /* collision distance */
+#define E1000_TCTL_RTLC 0x01000000 /* Re-transmit on late collision */
+#define E1000_TCTL_MULR 0x10000000 /* Multiple request support */
+
+/* SerDes Control */
+#define E1000_SCTL_DISABLE_SERDES_LOOPBACK 0x0400
+#define E1000_SCTL_ENABLE_SERDES_LOOPBACK 0x0410
+
+/* Receive Checksum Control */
+#define E1000_RXCSUM_TUOFL 0x00000200 /* TCP / UDP checksum offload */
+#define E1000_RXCSUM_IPPCSE 0x00001000 /* IP payload checksum enable */
+#define E1000_RXCSUM_PCSD 0x00002000 /* packet checksum disabled */
+
+/* Header split receive */
+#define E1000_RFCTL_NFSW_DIS 0x00000040
+#define E1000_RFCTL_NFSR_DIS 0x00000080
+#define E1000_RFCTL_ACK_DIS 0x00001000
+#define E1000_RFCTL_EXTEN 0x00008000
+#define E1000_RFCTL_IPV6_EX_DIS 0x00010000
+#define E1000_RFCTL_NEW_IPV6_EXT_DIS 0x00020000
+
+/* Collision related configuration parameters */
+#define E1000_CT_SHIFT 4
+#define E1000_COLLISION_THRESHOLD 15
+#define E1000_COLLISION_DISTANCE 63
+#define E1000_COLD_SHIFT 12
+
+/* Default values for the transmit IPG register */
+#define DEFAULT_82543_TIPG_IPGT_COPPER 8
+
+#define E1000_TIPG_IPGT_MASK 0x000003FF
+
+#define DEFAULT_82543_TIPG_IPGR1 8
+#define E1000_TIPG_IPGR1_SHIFT 10
+
+#define DEFAULT_82543_TIPG_IPGR2 6
+#define DEFAULT_80003ES2LAN_TIPG_IPGR2 7
+#define E1000_TIPG_IPGR2_SHIFT 20
+
+#define MAX_JUMBO_FRAME_SIZE 0x3F00
+/* The datasheet maximum supported RX size is 9.5KB (9728 bytes) */
+#define MAX_RX_JUMBO_FRAME_SIZE 0x2600
+#define E1000_TX_PTR_GAP 0x1F
+
+/* Extended Configuration Control and Size */
+#define E1000_EXTCNF_CTRL_MDIO_SW_OWNERSHIP 0x00000020
+#define E1000_EXTCNF_CTRL_LCD_WRITE_ENABLE 0x00000001
+#define E1000_EXTCNF_CTRL_OEM_WRITE_ENABLE 0x00000008
+#define E1000_EXTCNF_CTRL_SWFLAG 0x00000020
+#define E1000_EXTCNF_CTRL_GATE_PHY_CFG 0x00000080
+#define E1000_EXTCNF_SIZE_EXT_PCIE_LENGTH_MASK 0x00FF0000
+#define E1000_EXTCNF_SIZE_EXT_PCIE_LENGTH_SHIFT 16
+#define E1000_EXTCNF_CTRL_EXT_CNF_POINTER_MASK 0x0FFF0000
+#define E1000_EXTCNF_CTRL_EXT_CNF_POINTER_SHIFT 16
+
+#define E1000_PHY_CTRL_D0A_LPLU 0x00000002
+#define E1000_PHY_CTRL_NOND0A_LPLU 0x00000004
+#define E1000_PHY_CTRL_NOND0A_GBE_DISABLE 0x00000008
+#define E1000_PHY_CTRL_GBE_DISABLE 0x00000040
+
+#define E1000_KABGTXD_BGSQLBIAS 0x00050000
+
+/* Low Power IDLE Control */
+#define E1000_LPIC_LPIET_SHIFT 24 /* Low Power Idle Entry Time */
+
+/* PBA constants */
+#define E1000_PBA_8K 0x0008 /* 8KB */
+#define E1000_PBA_16K 0x0010 /* 16KB */
+
+#define E1000_PBA_RXA_MASK 0xFFFF
+
+#define E1000_PBS_16K E1000_PBA_16K
+
+/* Uncorrectable/correctable ECC Error counts and enable bits */
+#define E1000_PBECCSTS_CORR_ERR_CNT_MASK 0x000000FF
+#define E1000_PBECCSTS_UNCORR_ERR_CNT_MASK 0x0000FF00
+#define E1000_PBECCSTS_UNCORR_ERR_CNT_SHIFT 8
+#define E1000_PBECCSTS_ECC_ENABLE 0x00010000
+
+#define IFS_MAX 80
+#define IFS_MIN 40
+#define IFS_RATIO 4
+#define IFS_STEP 10
+#define MIN_NUM_XMITS 1000
+
+/* SW Semaphore Register */
+#define E1000_SWSM_SMBI 0x00000001 /* Driver Semaphore bit */
+#define E1000_SWSM_SWESMBI 0x00000002 /* FW Semaphore bit */
+#define E1000_SWSM_DRV_LOAD 0x00000008 /* Driver Loaded Bit */
+
+#define E1000_SWSM2_LOCK 0x00000002 /* Secondary driver semaphore bit */
+
+/* Interrupt Cause Read */
+#define E1000_ICR_TXDW 0x00000001 /* Transmit desc written back */
+#define E1000_ICR_LSC 0x00000004 /* Link Status Change */
+#define E1000_ICR_RXSEQ 0x00000008 /* Rx sequence error */
+#define E1000_ICR_RXDMT0 0x00000010 /* Rx desc min. threshold (0) */
+#define E1000_ICR_RXT0 0x00000080 /* Rx timer intr (ring 0) */
+#define E1000_ICR_ECCER 0x00400000 /* Uncorrectable ECC Error */
+/* If this bit asserted, the driver should claim the interrupt */
+#define E1000_ICR_INT_ASSERTED 0x80000000
+#define E1000_ICR_RXQ0 0x00100000 /* Rx Queue 0 Interrupt */
+#define E1000_ICR_RXQ1 0x00200000 /* Rx Queue 1 Interrupt */
+#define E1000_ICR_TXQ0 0x00400000 /* Tx Queue 0 Interrupt */
+#define E1000_ICR_TXQ1 0x00800000 /* Tx Queue 1 Interrupt */
+#define E1000_ICR_OTHER 0x01000000 /* Other Interrupts */
+
+/* PBA ECC Register */
+#define E1000_PBA_ECC_COUNTER_MASK 0xFFF00000 /* ECC counter mask */
+#define E1000_PBA_ECC_COUNTER_SHIFT 20 /* ECC counter shift value */
+#define E1000_PBA_ECC_CORR_EN 0x00000001 /* Enable ECC error correction */
+#define E1000_PBA_ECC_STAT_CLR 0x00000002 /* Clear ECC error counter */
+#define E1000_PBA_ECC_INT_EN 0x00000004 /* Enable ICR bit 5 on ECC error */
+
+/* This defines the bits that are set in the Interrupt Mask
+ * Set/Read Register. Each bit is documented below:
+ * o RXT0 = Receiver Timer Interrupt (ring 0)
+ * o TXDW = Transmit Descriptor Written Back
+ * o RXDMT0 = Receive Descriptor Minimum Threshold hit (ring 0)
+ * o RXSEQ = Receive Sequence Error
+ * o LSC = Link Status Change
+ */
+#define IMS_ENABLE_MASK ( \
+ E1000_IMS_RXT0 | \
+ E1000_IMS_TXDW | \
+ E1000_IMS_RXDMT0 | \
+ E1000_IMS_RXSEQ | \
+ E1000_IMS_LSC)
+
+/* Interrupt Mask Set */
+#define E1000_IMS_TXDW E1000_ICR_TXDW /* Tx desc written back */
+#define E1000_IMS_LSC E1000_ICR_LSC /* Link Status Change */
+#define E1000_IMS_RXSEQ E1000_ICR_RXSEQ /* Rx sequence error */
+#define E1000_IMS_RXDMT0 E1000_ICR_RXDMT0 /* Rx desc min. threshold */
+#define E1000_IMS_RXT0 E1000_ICR_RXT0 /* Rx timer intr */
+#define E1000_IMS_ECCER E1000_ICR_ECCER /* Uncorrectable ECC Error */
+#define E1000_IMS_RXQ0 E1000_ICR_RXQ0 /* Rx Queue 0 Interrupt */
+#define E1000_IMS_RXQ1 E1000_ICR_RXQ1 /* Rx Queue 1 Interrupt */
+#define E1000_IMS_TXQ0 E1000_ICR_TXQ0 /* Tx Queue 0 Interrupt */
+#define E1000_IMS_TXQ1 E1000_ICR_TXQ1 /* Tx Queue 1 Interrupt */
+#define E1000_IMS_OTHER E1000_ICR_OTHER /* Other Interrupt */
+
+/* Interrupt Cause Set */
+#define E1000_ICS_LSC E1000_ICR_LSC /* Link Status Change */
+#define E1000_ICS_RXSEQ E1000_ICR_RXSEQ /* Rx sequence error */
+#define E1000_ICS_RXDMT0 E1000_ICR_RXDMT0 /* Rx desc min. threshold */
+#define E1000_ICS_OTHER E1000_ICR_OTHER /* Other Interrupt */
+
+/* Transmit Descriptor Control */
+#define E1000_TXDCTL_PTHRESH 0x0000003F /* TXDCTL Prefetch Threshold */
+#define E1000_TXDCTL_HTHRESH 0x00003F00 /* TXDCTL Host Threshold */
+#define E1000_TXDCTL_WTHRESH 0x003F0000 /* TXDCTL Writeback Threshold */
+#define E1000_TXDCTL_GRAN 0x01000000 /* TXDCTL Granularity */
+#define E1000_TXDCTL_FULL_TX_DESC_WB 0x01010000 /* GRAN=1, WTHRESH=1 */
+#define E1000_TXDCTL_MAX_TX_DESC_PREFETCH 0x0100001F /* GRAN=1, PTHRESH=31 */
+/* Enable the counting of descriptors still to be processed. */
+#define E1000_TXDCTL_COUNT_DESC 0x00400000
+
+/* Flow Control Constants */
+#define FLOW_CONTROL_ADDRESS_LOW 0x00C28001
+#define FLOW_CONTROL_ADDRESS_HIGH 0x00000100
+#define FLOW_CONTROL_TYPE 0x8808
+
+/* 802.1q VLAN Packet Size */
+#define E1000_VLAN_FILTER_TBL_SIZE 128 /* VLAN Filter Table (4096 bits) */
+
+/* Receive Address
+ * Number of high/low register pairs in the RAR. The RAR (Receive Address
+ * Registers) holds the directed and multicast addresses that we monitor.
+ * Technically, we have 16 spots. However, we reserve one of these spots
+ * (RAR[15]) for our directed address used by controllers with
+ * manageability enabled, allowing us room for 15 multicast addresses.
+ */
+#define E1000_RAR_ENTRIES 15
+#define E1000_RAH_AV 0x80000000 /* Receive descriptor valid */
+#define E1000_RAL_MAC_ADDR_LEN 4
+#define E1000_RAH_MAC_ADDR_LEN 2
+
+/* Error Codes */
+#define E1000_ERR_NVM 1
+#define E1000_ERR_PHY 2
+#define E1000_ERR_CONFIG 3
+#define E1000_ERR_PARAM 4
+#define E1000_ERR_MAC_INIT 5
+#define E1000_ERR_PHY_TYPE 6
+#define E1000_ERR_RESET 9
+#define E1000_ERR_MASTER_REQUESTS_PENDING 10
+#define E1000_ERR_HOST_INTERFACE_COMMAND 11
+#define E1000_BLK_PHY_RESET 12
+#define E1000_ERR_SWFW_SYNC 13
+#define E1000_NOT_IMPLEMENTED 14
+#define E1000_ERR_INVALID_ARGUMENT 16
+#define E1000_ERR_NO_SPACE 17
+#define E1000_ERR_NVM_PBA_SECTION 18
+
+/* Loop limit on how long we wait for auto-negotiation to complete */
+#define FIBER_LINK_UP_LIMIT 50
+#define COPPER_LINK_UP_LIMIT 10
+#define PHY_AUTO_NEG_LIMIT 45
+#define PHY_FORCE_LIMIT 20
+/* Number of 100 microseconds we wait for PCI Express master disable */
+#define MASTER_DISABLE_TIMEOUT 800
+/* Number of milliseconds we wait for PHY configuration done after MAC reset */
+#define PHY_CFG_TIMEOUT 100
+/* Number of 2 milliseconds we wait for acquiring MDIO ownership. */
+#define MDIO_OWNERSHIP_TIMEOUT 10
+/* Number of milliseconds for NVM auto read done after MAC reset. */
+#define AUTO_READ_DONE_TIMEOUT 10
+
+/* Flow Control */
+#define E1000_FCRTH_RTH 0x0000FFF8 /* Mask Bits[15:3] for RTH */
+#define E1000_FCRTL_RTL 0x0000FFF8 /* Mask Bits[15:3] for RTL */
+#define E1000_FCRTL_XONE 0x80000000 /* Enable XON frame transmission */
+
+/* Transmit Configuration Word */
+#define E1000_TXCW_FD 0x00000020 /* TXCW full duplex */
+#define E1000_TXCW_PAUSE 0x00000080 /* TXCW sym pause request */
+#define E1000_TXCW_ASM_DIR 0x00000100 /* TXCW astm pause direction */
+#define E1000_TXCW_PAUSE_MASK 0x00000180 /* TXCW pause request mask */
+#define E1000_TXCW_ANE 0x80000000 /* Auto-neg enable */
+
+/* Receive Configuration Word */
+#define E1000_RXCW_CW 0x0000ffff /* RxConfigWord mask */
+#define E1000_RXCW_IV 0x08000000 /* Receive config invalid */
+#define E1000_RXCW_C 0x20000000 /* Receive config */
+#define E1000_RXCW_SYNCH 0x40000000 /* Receive config synch */
+
+#define E1000_TSYNCTXCTL_VALID 0x00000001 /* Tx timestamp valid */
+#define E1000_TSYNCTXCTL_ENABLED 0x00000010 /* enable Tx timestamping */
+
+/* HH Time Sync */
+#define E1000_TSYNCTXCTL_MAX_ALLOWED_DLY_MASK 0x0000F000 /* max delay */
+#define E1000_TSYNCTXCTL_SYNC_COMP_ERR 0x20000000 /* sync err */
+#define E1000_TSYNCTXCTL_SYNC_COMP 0x40000000 /* sync complete */
+#define E1000_TSYNCTXCTL_START_SYNC 0x80000000 /* initiate sync */
+
+#define E1000_TSYNCRXCTL_VALID 0x00000001 /* Rx timestamp valid */
+#define E1000_TSYNCRXCTL_TYPE_MASK 0x0000000E /* Rx type mask */
+#define E1000_TSYNCRXCTL_TYPE_L2_V2 0x00
+#define E1000_TSYNCRXCTL_TYPE_L4_V1 0x02
+#define E1000_TSYNCRXCTL_TYPE_L2_L4_V2 0x04
+#define E1000_TSYNCRXCTL_TYPE_ALL 0x08
+#define E1000_TSYNCRXCTL_TYPE_EVENT_V2 0x0A
+#define E1000_TSYNCRXCTL_ENABLED 0x00000010 /* enable Rx timestamping */
+#define E1000_TSYNCRXCTL_SYSCFI 0x00000020 /* Sys clock frequency */
+
+#define E1000_RXMTRL_PTP_V1_SYNC_MESSAGE 0x00000000
+#define E1000_RXMTRL_PTP_V1_DELAY_REQ_MESSAGE 0x00010000
+
+#define E1000_RXMTRL_PTP_V2_SYNC_MESSAGE 0x00000000
+#define E1000_RXMTRL_PTP_V2_DELAY_REQ_MESSAGE 0x01000000
+
+#define E1000_TIMINCA_INCPERIOD_SHIFT 24
+#define E1000_TIMINCA_INCVALUE_MASK 0x00FFFFFF
+
+/* ETQF register bit definitions */
+#define E1000_ETQF_1588 (1 << 30)
+#define E1000_FTQF_VF_BP 0x00008000
+#define E1000_FTQF_1588_TIME_STAMP 0x08000000
+#define E1000_FTQF_MASK 0xF0000000
+#define E1000_FTQF_MASK_PROTO_BP 0x10000000
+/* Immediate Interrupt Rx (A.K.A. Low Latency Interrupt) */
+#define E1000_IMIREXT_CTRL_BP 0x00080000 /* Bypass check of ctrl bits */
+#define E1000_IMIREXT_SIZE_BP 0x00001000 /* Packet size bypass */
+
+/* PCI Express Control */
+#define E1000_GCR_RXD_NO_SNOOP 0x00000001
+#define E1000_GCR_RXDSCW_NO_SNOOP 0x00000002
+#define E1000_GCR_RXDSCR_NO_SNOOP 0x00000004
+#define E1000_GCR_TXD_NO_SNOOP 0x00000008
+#define E1000_GCR_TXDSCW_NO_SNOOP 0x00000010
+#define E1000_GCR_TXDSCR_NO_SNOOP 0x00000020
+
+#define PCIE_NO_SNOOP_ALL (E1000_GCR_RXD_NO_SNOOP | \
+ E1000_GCR_RXDSCW_NO_SNOOP | \
+ E1000_GCR_RXDSCR_NO_SNOOP | \
+ E1000_GCR_TXD_NO_SNOOP | \
+ E1000_GCR_TXDSCW_NO_SNOOP | \
+ E1000_GCR_TXDSCR_NO_SNOOP)
+
+#define E1000_MMDAC_FUNC_DATA 0x4000 /* Data, no post increment */
+
+/* NVM Control */
+#define E1000_EECD_SK 0x00000001 /* NVM Clock */
+#define E1000_EECD_CS 0x00000002 /* NVM Chip Select */
+#define E1000_EECD_DI 0x00000004 /* NVM Data In */
+#define E1000_EECD_DO 0x00000008 /* NVM Data Out */
+#define E1000_EECD_REQ 0x00000040 /* NVM Access Request */
+#define E1000_EECD_GNT 0x00000080 /* NVM Access Grant */
+#define E1000_EECD_PRES 0x00000100 /* NVM Present */
+#define E1000_EECD_SIZE 0x00000200 /* NVM Size (0=64 word 1=256 word) */
+/* NVM Addressing bits based on type 0=small, 1=large */
+#define E1000_EECD_ADDR_BITS 0x00000400
+#define E1000_NVM_GRANT_ATTEMPTS 1000 /* NVM # attempts to gain grant */
+#define E1000_EECD_AUTO_RD 0x00000200 /* NVM Auto Read done */
+#define E1000_EECD_SIZE_EX_MASK 0x00007800 /* NVM Size */
+#define E1000_EECD_SIZE_EX_SHIFT 11
+#define E1000_EECD_FLUPD 0x00080000 /* Update FLASH */
+#define E1000_EECD_AUPDEN 0x00100000 /* Ena Auto FLASH update */
+#define E1000_EECD_SEC1VAL 0x00400000 /* Sector One Valid */
+#define E1000_EECD_SEC1VAL_VALID_MASK (E1000_EECD_AUTO_RD | E1000_EECD_PRES)
+
+#define E1000_NVM_RW_REG_DATA 16 /* Offset to data in NVM read/write regs */
+#define E1000_NVM_RW_REG_DONE 2 /* Offset to READ/WRITE done bit */
+#define E1000_NVM_RW_REG_START 1 /* Start operation */
+#define E1000_NVM_RW_ADDR_SHIFT 2 /* Shift to the address bits */
+#define E1000_NVM_POLL_WRITE 1 /* Flag for polling for write complete */
+#define E1000_NVM_POLL_READ 0 /* Flag for polling for read complete */
+#define E1000_FLASH_UPDATES 2000
+
+/* NVM Word Offsets */
+#define NVM_COMPAT 0x0003
+#define NVM_ID_LED_SETTINGS 0x0004
+#define NVM_FUTURE_INIT_WORD1 0x0019
+#define NVM_COMPAT_VALID_CSUM 0x0001
+#define NVM_FUTURE_INIT_WORD1_VALID_CSUM 0x0040
+
+#define NVM_INIT_CONTROL2_REG 0x000F
+#define NVM_INIT_CONTROL3_PORT_B 0x0014
+#define NVM_INIT_3GIO_3 0x001A
+#define NVM_INIT_CONTROL3_PORT_A 0x0024
+#define NVM_CFG 0x0012
+#define NVM_ALT_MAC_ADDR_PTR 0x0037
+#define NVM_CHECKSUM_REG 0x003F
+
+#define E1000_NVM_CFG_DONE_PORT_0 0x040000 /* MNG config cycle done */
+#define E1000_NVM_CFG_DONE_PORT_1 0x080000 /* ...for second port */
+
+/* Mask bits for fields in Word 0x0f of the NVM */
+#define NVM_WORD0F_PAUSE_MASK 0x3000
+#define NVM_WORD0F_PAUSE 0x1000
+#define NVM_WORD0F_ASM_DIR 0x2000
+
+/* Mask bits for fields in Word 0x1a of the NVM */
+#define NVM_WORD1A_ASPM_MASK 0x000C
+
+/* Mask bits for fields in Word 0x03 of the EEPROM */
+#define NVM_COMPAT_LOM 0x0800
+
+/* length of string needed to store PBA number */
+#define E1000_PBANUM_LENGTH 11
+
+/* For checksumming, the sum of all words in the NVM should equal 0xBABA. */
+#define NVM_SUM 0xBABA
+
+/* PBA (printed board assembly) number words */
+#define NVM_PBA_OFFSET_0 8
+#define NVM_PBA_OFFSET_1 9
+#define NVM_PBA_PTR_GUARD 0xFAFA
+#define NVM_WORD_SIZE_BASE_SHIFT 6
+
+/* NVM Commands - SPI */
+#define NVM_MAX_RETRY_SPI 5000 /* Max wait of 5ms, for RDY signal */
+#define NVM_READ_OPCODE_SPI 0x03 /* NVM read opcode */
+#define NVM_WRITE_OPCODE_SPI 0x02 /* NVM write opcode */
+#define NVM_A8_OPCODE_SPI 0x08 /* opcode bit-3 = address bit-8 */
+#define NVM_WREN_OPCODE_SPI 0x06 /* NVM set Write Enable latch */
+#define NVM_RDSR_OPCODE_SPI 0x05 /* NVM read Status register */
+
+/* SPI NVM Status Register */
+#define NVM_STATUS_RDY_SPI 0x01
+
+/* Word definitions for ID LED Settings */
+#define ID_LED_RESERVED_0000 0x0000
+#define ID_LED_RESERVED_FFFF 0xFFFF
+#define ID_LED_DEFAULT ((ID_LED_OFF1_ON2 << 12) | \
+ (ID_LED_OFF1_OFF2 << 8) | \
+ (ID_LED_DEF1_DEF2 << 4) | \
+ (ID_LED_DEF1_DEF2))
+#define ID_LED_DEF1_DEF2 0x1
+#define ID_LED_DEF1_ON2 0x2
+#define ID_LED_DEF1_OFF2 0x3
+#define ID_LED_ON1_DEF2 0x4
+#define ID_LED_ON1_ON2 0x5
+#define ID_LED_ON1_OFF2 0x6
+#define ID_LED_OFF1_DEF2 0x7
+#define ID_LED_OFF1_ON2 0x8
+#define ID_LED_OFF1_OFF2 0x9
+
+#define IGP_ACTIVITY_LED_MASK 0xFFFFF0FF
+#define IGP_ACTIVITY_LED_ENABLE 0x0300
+#define IGP_LED3_MODE 0x07000000
+
+/* PCI/PCI-X/PCI-EX Config space */
+#define PCI_HEADER_TYPE_REGISTER 0x0E
+#define PCIE_LINK_STATUS 0x12
+
+#define PCI_HEADER_TYPE_MULTIFUNC 0x80
+#define PCIE_LINK_WIDTH_MASK 0x3F0
+#define PCIE_LINK_WIDTH_SHIFT 4
+
+#define PHY_REVISION_MASK 0xFFFFFFF0
+#define MAX_PHY_REG_ADDRESS 0x1F /* 5 bit address bus (0-0x1F) */
+#define MAX_PHY_MULTI_PAGE_REG 0xF
+
+/* Bit definitions for valid PHY IDs.
+ * I = Integrated
+ * E = External
+ */
+#define M88E1000_E_PHY_ID 0x01410C50
+#define M88E1000_I_PHY_ID 0x01410C30
+#define M88E1011_I_PHY_ID 0x01410C20
+#define IGP01E1000_I_PHY_ID 0x02A80380
+#define M88E1111_I_PHY_ID 0x01410CC0
+#define GG82563_E_PHY_ID 0x01410CA0
+#define IGP03E1000_E_PHY_ID 0x02A80390
+#define IFE_E_PHY_ID 0x02A80330
+#define IFE_PLUS_E_PHY_ID 0x02A80320
+#define IFE_C_E_PHY_ID 0x02A80310
+#define BME1000_E_PHY_ID 0x01410CB0
+#define BME1000_E_PHY_ID_R2 0x01410CB1
+#define I82577_E_PHY_ID 0x01540050
+#define I82578_E_PHY_ID 0x004DD040
+#define I82579_E_PHY_ID 0x01540090
+#define I217_E_PHY_ID 0x015400A0
+
+/* M88E1000 Specific Registers */
+#define M88E1000_PHY_SPEC_CTRL 0x10 /* PHY Specific Control Reg */
+#define M88E1000_PHY_SPEC_STATUS 0x11 /* PHY Specific Status Reg */
+#define M88E1000_EXT_PHY_SPEC_CTRL 0x14 /* Extended PHY Specific Cntrl */
+
+#define M88E1000_PHY_PAGE_SELECT 0x1D /* Reg 29 for pg number setting */
+#define M88E1000_PHY_GEN_CONTROL 0x1E /* meaning depends on reg 29 */
+
+/* M88E1000 PHY Specific Control Register */
+#define M88E1000_PSCR_POLARITY_REVERSAL 0x0002 /* 1=Polarity Reverse enabled */
+/* MDI Crossover Mode bits 6:5 Manual MDI configuration */
+#define M88E1000_PSCR_MDI_MANUAL_MODE 0x0000
+#define M88E1000_PSCR_MDIX_MANUAL_MODE 0x0020 /* Manual MDIX configuration */
+/* 1000BASE-T: Auto crossover, 100BASE-TX/10BASE-T: MDI Mode */
+#define M88E1000_PSCR_AUTO_X_1000T 0x0040
+/* Auto crossover enabled all speeds */
+#define M88E1000_PSCR_AUTO_X_MODE 0x0060
+#define M88E1000_PSCR_ASSERT_CRS_ON_TX 0x0800 /* 1=Assert CRS on Tx */
+
+/* M88E1000 PHY Specific Status Register */
+#define M88E1000_PSSR_REV_POLARITY 0x0002 /* 1=Polarity reversed */
+#define M88E1000_PSSR_DOWNSHIFT 0x0020 /* 1=Downshifted */
+#define M88E1000_PSSR_MDIX 0x0040 /* 1=MDIX; 0=MDI */
+/* 0 = <50M
+ * 1 = 50-80M
+ * 2 = 80-110M
+ * 3 = 110-140M
+ * 4 = >140M
+ */
+#define M88E1000_PSSR_CABLE_LENGTH 0x0380
+#define M88E1000_PSSR_SPEED 0xC000 /* Speed, bits 14:15 */
+#define M88E1000_PSSR_1000MBS 0x8000 /* 10=1000Mbs */
+
+#define M88E1000_PSSR_CABLE_LENGTH_SHIFT 7
+
+/* Number of times we will attempt to autonegotiate before downshifting if we
+ * are the master
+ */
+#define M88E1000_EPSCR_MASTER_DOWNSHIFT_MASK 0x0C00
+#define M88E1000_EPSCR_MASTER_DOWNSHIFT_1X 0x0000
+/* Number of times we will attempt to autonegotiate before downshifting if we
+ * are the slave
+ */
+#define M88E1000_EPSCR_SLAVE_DOWNSHIFT_MASK 0x0300
+#define M88E1000_EPSCR_SLAVE_DOWNSHIFT_1X 0x0100
+#define M88E1000_EPSCR_TX_CLK_25 0x0070 /* 25 MHz TX_CLK */
+
+/* M88EC018 Rev 2 specific DownShift settings */
+#define M88EC018_EPSCR_DOWNSHIFT_COUNTER_MASK 0x0E00
+#define M88EC018_EPSCR_DOWNSHIFT_COUNTER_5X 0x0800
+
+#define I82578_EPSCR_DOWNSHIFT_ENABLE 0x0020
+#define I82578_EPSCR_DOWNSHIFT_COUNTER_MASK 0x001C
+
+/* BME1000 PHY Specific Control Register */
+#define BME1000_PSCR_ENABLE_DOWNSHIFT 0x0800 /* 1 = enable downshift */
+
+/* Bits...
+ * 15-5: page
+ * 4-0: register offset
+ */
+#define GG82563_PAGE_SHIFT 5
+#define GG82563_REG(page, reg) \
+ (((page) << GG82563_PAGE_SHIFT) | ((reg) & MAX_PHY_REG_ADDRESS))
+#define GG82563_MIN_ALT_REG 30
+
+/* GG82563 Specific Registers */
+#define GG82563_PHY_SPEC_CTRL GG82563_REG(0, 16) /* PHY Spec Cntrl */
+#define GG82563_PHY_PAGE_SELECT GG82563_REG(0, 22) /* Page Select */
+#define GG82563_PHY_SPEC_CTRL_2 GG82563_REG(0, 26) /* PHY Spec Cntrl2 */
+#define GG82563_PHY_PAGE_SELECT_ALT GG82563_REG(0, 29) /* Alt Page Select */
+
+/* MAC Specific Control Register */
+#define GG82563_PHY_MAC_SPEC_CTRL GG82563_REG(2, 21)
+
+#define GG82563_PHY_DSP_DISTANCE GG82563_REG(5, 26) /* DSP Distance */
+
+/* Page 193 - Port Control Registers */
+/* Kumeran Mode Control */
+#define GG82563_PHY_KMRN_MODE_CTRL GG82563_REG(193, 16)
+#define GG82563_PHY_PWR_MGMT_CTRL GG82563_REG(193, 20) /* Pwr Mgt Ctrl */
+
+/* Page 194 - KMRN Registers */
+#define GG82563_PHY_INBAND_CTRL GG82563_REG(194, 18) /* Inband Ctrl */
+
+/* MDI Control */
+#define E1000_MDIC_REG_MASK 0x001F0000
+#define E1000_MDIC_REG_SHIFT 16
+#define E1000_MDIC_PHY_SHIFT 21
+#define E1000_MDIC_OP_WRITE 0x04000000
+#define E1000_MDIC_OP_READ 0x08000000
+#define E1000_MDIC_READY 0x10000000
+#define E1000_MDIC_ERROR 0x40000000
+
+/* SerDes Control */
+#define E1000_GEN_POLL_TIMEOUT 640
+
+#endif /* _E1000E_DEFINES_H_ */
diff --git a/src/e1000.h b/src/e1000.h
new file mode 100644
index 0000000..5bf3d4f
--- /dev/null
+++ b/src/e1000.h
@@ -0,0 +1,682 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/* Copyright(c) 1999 - 2020 Intel Corporation. */
+
+/* Linux PRO/1000 Ethernet Driver main header file */
+
+#ifndef _E1000_H_
+#define _E1000_H_
+
+#include <linux/bitops.h>
+#include <linux/types.h>
+#include <linux/netdevice.h>
+#include <linux/pci.h>
+#include <linux/if_vlan.h>
+#include "kcompat.h"
+#ifdef HAVE_HW_TIME_STAMP
+#ifdef HAVE_INCLUDE_LINUX_TIMECOUNTER_H
+#include <linux/timecounter.h>
+#else
+#include <linux/clocksource.h>
+#endif /* HAVE_INCLUDE_LINUX_TIMECOUNTER_H */
+#include <linux/net_tstamp.h>
+#endif /* HAVE_HW_TIME_STAMP */
+#ifdef HAVE_PTP_1588_CLOCK
+#include <linux/ptp_clock_kernel.h>
+#include <linux/ptp_classify.h>
+#endif
+#include <linux/mii.h>
+#ifdef ETHTOOL_GEEE
+#include <linux/mdio.h>
+#endif
+#include "hw.h"
+
+struct e1000_info;
+
+#define e_dbg(format, arg...) \
+ netdev_dbg(hw->adapter->netdev, format, ## arg)
+#define e_err(format, arg...) \
+ netdev_err(adapter->netdev, format, ## arg)
+#define e_info(format, arg...) \
+ netdev_info(adapter->netdev, format, ## arg)
+#define e_warn(format, arg...) \
+ netdev_warn(adapter->netdev, format, ## arg)
+#define e_notice(format, arg...) \
+ netdev_notice(adapter->netdev, format, ## arg)
+
+/* Interrupt modes, as used by the IntMode parameter */
+#define E1000E_INT_MODE_LEGACY 0
+#define E1000E_INT_MODE_MSI 1
+#define E1000E_INT_MODE_MSIX 2
+
+#ifndef CONFIG_E1000E_NAPI
+#define E1000_MAX_INTR 10
+
+#endif /* CONFIG_E1000E_NAPI */
+/* Tx/Rx descriptor defines */
+#define E1000_DEFAULT_TXD 256
+#define E1000_MAX_TXD 4096
+#define E1000_MIN_TXD 64
+
+#define E1000_DEFAULT_RXD 256
+#define E1000_MAX_RXD 4096
+#define E1000_MIN_RXD 64
+
+#define E1000_MIN_ITR_USECS 10 /* 100000 irq/sec */
+#define E1000_MAX_ITR_USECS 10000 /* 100 irq/sec */
+
+#define E1000_FC_PAUSE_TIME 0x0680 /* 858 usec */
+
+/* How many Tx Descriptors do we need to call netif_wake_queue ? */
+/* How many Rx Buffers do we bundle into one write to the hardware ? */
+#define E1000_RX_BUFFER_WRITE 16 /* Must be power of 2 */
+
+#define AUTO_ALL_MODES 0
+#define E1000_EEPROM_APME 0x0400
+
+#define E1000_MNG_VLAN_NONE (-1)
+
+#define DEFAULT_JUMBO 9234
+
+/* Time to wait before putting the device into D3 if there's no link (in ms). */
+#define LINK_TIMEOUT 100
+
+/* Count for polling __E1000_RESET condition every 10-20msec.
+ * Experimentation has shown the reset can take approximately 210msec.
+ */
+#define E1000_CHECK_RESET_COUNT 25
+
+#define DEFAULT_RDTR 0
+#define DEFAULT_RADV 8
+#define BURST_RDTR 0x20
+#define BURST_RADV 0x20
+#define PCICFG_DESC_RING_STATUS 0xe4
+#define FLUSH_DESC_REQUIRED 0x100
+
+/* in the case of WTHRESH, it appears at least the 82571/2 hardware
+ * writes back 4 descriptors when WTHRESH=5, and 3 descriptors when
+ * WTHRESH=4, so a setting of 5 gives the most efficient bus
+ * utilization but to avoid possible Tx stalls, set it to 1
+ */
+#define E1000_TXDCTL_DMA_BURST_ENABLE \
+ (E1000_TXDCTL_GRAN | /* set descriptor granularity */ \
+ E1000_TXDCTL_COUNT_DESC | \
+ (1u << 16) | /* wthresh must be +1 more than desired */\
+ (1u << 8) | /* hthresh */ \
+ 0x1f) /* pthresh */
+
+#define E1000_RXDCTL_DMA_BURST_ENABLE \
+ (0x01000000 | /* set descriptor granularity */ \
+ (4u << 16) | /* set writeback threshold */ \
+ (4u << 8) | /* set prefetch threshold */ \
+ 0x20) /* set hthresh */
+
+#define E1000_TIDV_FPD BIT(31)
+#define E1000_RDTR_FPD BIT(31)
+
+enum e1000_boards {
+ board_82571,
+ board_82572,
+ board_82573,
+ board_82574,
+ board_82583,
+ board_80003es2lan,
+ board_ich8lan,
+ board_ich9lan,
+ board_ich10lan,
+ board_pchlan,
+ board_pch2lan,
+ board_pch_lpt,
+ board_pch_spt,
+ board_pch_cnp
+};
+
+struct e1000_ps_page {
+ struct page *page;
+ u64 dma; /* must be u64 - written to hw */
+};
+
+/* wrappers around a pointer to a socket buffer,
+ * so a DMA handle can be stored along with the buffer
+ */
+struct e1000_buffer {
+ dma_addr_t dma;
+ struct sk_buff *skb;
+ union {
+ /* Tx */
+ struct {
+ unsigned long time_stamp;
+ u16 length;
+ u16 next_to_watch;
+ unsigned int segs;
+ unsigned int bytecount;
+ u16 mapped_as_page;
+ };
+ /* Rx */
+ struct {
+ /* arrays of page information for packet split */
+ struct e1000_ps_page *ps_pages;
+ struct page *page;
+ };
+ };
+};
+
+struct e1000_ring {
+ struct e1000_adapter *adapter; /* back pointer to adapter */
+ void *desc; /* pointer to ring memory */
+ dma_addr_t dma; /* phys address of ring */
+ unsigned int size; /* length of ring in bytes */
+ unsigned int count; /* number of desc. in ring */
+
+ u16 next_to_use;
+ u16 next_to_clean;
+
+ void __iomem *head;
+ void __iomem *tail;
+
+ /* array of buffer information structs */
+ struct e1000_buffer *buffer_info;
+
+ char name[IFNAMSIZ + 5];
+ u32 ims_val;
+ u32 itr_val;
+ void __iomem *itr_register;
+ int set_itr;
+
+ struct sk_buff *rx_skb_top;
+};
+
+#ifdef SIOCGMIIPHY
+/* PHY register snapshot values */
+struct e1000_phy_regs {
+ u16 bmcr; /* basic mode control register */
+ u16 bmsr; /* basic mode status register */
+ u16 advertise; /* auto-negotiation advertisement */
+ u16 lpa; /* link partner ability register */
+ u16 expansion; /* auto-negotiation expansion reg */
+ u16 ctrl1000; /* 1000BASE-T control register */
+ u16 stat1000; /* 1000BASE-T status register */
+ u16 estatus; /* extended status register */
+};
+#endif
+
+/* board specific private data structure */
+struct e1000_adapter {
+ struct timer_list watchdog_timer;
+ struct timer_list phy_info_timer;
+ struct timer_list blink_timer;
+
+ struct work_struct reset_task;
+ struct work_struct watchdog_task;
+
+ const struct e1000_info *ei;
+
+#ifdef HAVE_VLAN_RX_REGISTER
+ struct vlan_group *vlgrp;
+#else
+ unsigned long active_vlans[BITS_TO_LONGS(VLAN_N_VID)];
+#endif
+ u32 bd_number;
+ u32 rx_buffer_len;
+ u16 mng_vlan_id;
+ u16 link_speed;
+ u16 link_duplex;
+ u16 eeprom_vers;
+
+ /* track device up/down/testing state */
+ unsigned long state;
+
+ /* Interrupt Throttle Rate */
+ u32 itr;
+ u32 itr_setting;
+ u16 tx_itr;
+ u16 rx_itr;
+
+ /* Tx - one ring per active queue */
+ struct e1000_ring *tx_ring ____cacheline_aligned_in_smp;
+ u32 tx_fifo_limit;
+
+#ifdef CONFIG_E1000E_NAPI
+ struct napi_struct napi;
+#endif
+
+ unsigned int uncorr_errors; /* uncorrectable ECC errors */
+ unsigned int corr_errors; /* correctable ECC errors */
+ unsigned int restart_queue;
+ u32 txd_cmd;
+
+ bool detect_tx_hung;
+ bool tx_hang_recheck;
+ u8 tx_timeout_factor;
+
+ u32 tx_int_delay;
+ u32 tx_abs_int_delay;
+
+ unsigned int total_tx_bytes;
+ unsigned int total_tx_packets;
+ unsigned int total_rx_bytes;
+ unsigned int total_rx_packets;
+
+ /* Tx stats */
+ u64 tpt_old;
+ u64 colc_old;
+ u32 gotc;
+ u64 gotc_old;
+ u32 tx_timeout_count;
+ u32 tx_fifo_head;
+ u32 tx_head_addr;
+ u32 tx_fifo_size;
+ u32 tx_dma_failed;
+ u32 tx_hwtstamp_timeouts;
+ u32 tx_hwtstamp_skipped;
+
+ /* Rx */
+#ifdef CONFIG_E1000E_NAPI
+ bool (*clean_rx)(struct e1000_ring *ring, int *work_done,
+ int work_to_do) ____cacheline_aligned_in_smp;
+#else
+ bool (*clean_rx)(struct e1000_ring *ring) ____cacheline_aligned_in_smp;
+#endif
+ void (*alloc_rx_buf)(struct e1000_ring *ring, int cleaned_count,
+ gfp_t gfp);
+ struct e1000_ring *rx_ring;
+
+ u32 rx_int_delay;
+ u32 rx_abs_int_delay;
+
+ /* Rx stats */
+ u64 hw_csum_err;
+ u64 hw_csum_good;
+ u64 rx_hdr_split;
+ u32 gorc;
+ u64 gorc_old;
+ u32 alloc_rx_buff_failed;
+ u32 rx_dma_failed;
+#ifdef HAVE_HW_TIME_STAMP
+ u32 rx_hwtstamp_cleared;
+#endif
+#ifdef DYNAMIC_LTR_SUPPORT
+ u64 c10_mpc_count; /* frequently updated MPC count */
+ u64 c10_rx_bytes; /* frequently updated RX bytes count */
+ u32 c10_pba_bytes; /* current PBA RXA converted to bytes*/
+ bool c10_demote_ltr; /* is/should LTR be demoted */
+#endif /* DYNAMIC_LTR_SUPPORT */
+
+ unsigned int rx_ps_pages;
+ u16 rx_ps_bsize0;
+#ifndef CONFIG_E1000E_NAPI
+ u64 rx_dropped_backlog; /* count drops from rx int handler */
+#endif
+ u32 max_frame_size;
+ u32 min_frame_size;
+
+ /* OS defined structs */
+ struct net_device *netdev;
+ struct pci_dev *pdev;
+#ifndef HAVE_NETDEV_STATS_IN_NETDEV
+ struct net_device_stats net_stats;
+#endif
+
+ /* structs defined in e1000_hw.h */
+ struct e1000_hw hw;
+
+#ifdef HAVE_NDO_GET_STATS64
+ spinlock_t stats64_lock; /* protects statistics counters */
+#endif
+ struct e1000_hw_stats stats;
+ struct e1000_phy_info phy_info;
+ struct e1000_phy_stats phy_stats;
+
+#ifdef SIOCGMIIPHY
+ /* Snapshot of PHY registers */
+ struct e1000_phy_regs phy_regs;
+#endif
+
+ struct e1000_ring test_tx_ring;
+ struct e1000_ring test_rx_ring;
+ u32 test_icr;
+
+ u32 msg_enable;
+ unsigned int num_vectors;
+ struct msix_entry *msix_entries;
+ int int_mode;
+ u32 eiac_mask;
+
+ u32 eeprom_wol;
+ u32 wol;
+ u32 pba;
+ u32 max_hw_frame_size;
+
+ bool fc_autoneg;
+
+#ifndef HAVE_ETHTOOL_SET_PHYS_ID
+ unsigned long led_status;
+
+#endif
+ unsigned int flags;
+ unsigned int flags2;
+ struct work_struct downshift_task;
+ struct work_struct update_phy_task;
+#ifndef HAVE_ETHTOOL_SET_PHYS_ID
+ struct work_struct led_blink_task;
+#endif
+ struct work_struct print_hang_task;
+ u32 *config_space;
+
+ int node; /* store the node to allocate memory on */
+ int phy_hang_count;
+
+ u16 tx_ring_count;
+ u16 rx_ring_count;
+ u8 revision_id;
+
+#ifdef HAVE_HW_TIME_STAMP
+ struct hwtstamp_config hwtstamp_config;
+ struct delayed_work systim_overflow_work;
+ struct sk_buff *tx_hwtstamp_skb;
+ unsigned long tx_hwtstamp_start;
+ struct work_struct tx_hwtstamp_work;
+ spinlock_t systim_lock; /* protects SYSTIML/H regsters */
+ struct cyclecounter cc;
+ struct timecounter tc;
+#endif
+#ifdef HAVE_PTP_1588_CLOCK
+ struct ptp_clock *ptp_clock;
+ struct ptp_clock_info ptp_clock_info;
+#endif
+#ifdef HAVE_PM_QOS_REQUEST_LIST_NEW
+ struct pm_qos_request pm_qos_req;
+
+#elif defined(HAVE_PM_QOS_REQUEST_LIST)
+ struct pm_qos_request_list pm_qos_req;
+#endif
+ s32 ptp_delta;
+ u16 eee_advert;
+};
+
+struct e1000_info {
+ enum e1000_mac_type mac;
+ unsigned int flags;
+ unsigned int flags2;
+ u32 pba;
+ u32 max_hw_frame_size;
+ s32 (*get_variants)(struct e1000_adapter *);
+ const struct e1000_mac_operations *mac_ops;
+ const struct e1000_phy_operations *phy_ops;
+ const struct e1000_nvm_operations *nvm_ops;
+};
+
+#ifdef HAVE_HW_TIME_STAMP
+#ifdef HAVE_PTP_1588_CLOCK
+s32 e1000e_get_base_timinca(struct e1000_adapter *adapter, u32 *timinca);
+#endif
+
+/* The system time is maintained by a 64-bit counter comprised of the 32-bit
+ * SYSTIMH and SYSTIML registers. How the counter increments (and therefore
+ * its resolution) is based on the contents of the TIMINCA register - it
+ * increments every incperiod (bits 31:24) clock ticks by incvalue (bits 23:0).
+ * For the best accuracy, the incperiod should be as small as possible. The
+ * incvalue is scaled by a factor as large as possible (while still fitting
+ * in bits 23:0) so that relatively small clock corrections can be made.
+ *
+ * As a result, a shift of INCVALUE_SHIFT_n is used to fit a value of
+ * INCVALUE_n into the TIMINCA register allowing 32+8+(24-INCVALUE_SHIFT_n)
+ * bits to count nanoseconds leaving the rest for fractional nonseconds.
+ */
+#define INCVALUE_96MHZ 125
+#define INCVALUE_SHIFT_96MHZ 17
+#define INCPERIOD_SHIFT_96MHZ 2
+#define INCPERIOD_96MHZ (12 >> INCPERIOD_SHIFT_96MHZ)
+
+#define INCVALUE_25MHZ 40
+#define INCVALUE_SHIFT_25MHZ 18
+#define INCPERIOD_25MHZ 1
+
+#define INCVALUE_24MHZ 125
+#define INCVALUE_SHIFT_24MHZ 14
+#define INCPERIOD_24MHZ 3
+
+#define INCVALUE_38400KHZ 26
+#define INCVALUE_SHIFT_38400KHZ 19
+#define INCPERIOD_38400KHZ 1
+
+/* Another drawback of scaling the incvalue by a large factor is the
+ * 64-bit SYSTIM register overflows more quickly. This is dealt with
+ * by simply reading the clock before it overflows.
+ *
+ * Clock ns bits Overflows after
+ * ~~~~~~ ~~~~~~~ ~~~~~~~~~~~~~~~
+ * 96MHz 47-bit 2^(47-INCPERIOD_SHIFT_96MHz) / 10^9 / 3600 = 9.77 hrs
+ * 25MHz 46-bit 2^46 / 10^9 / 3600 = 19.55 hours
+ */
+#define E1000_SYSTIM_OVERFLOW_PERIOD (HZ * 60 * 60 * 4)
+#define E1000_MAX_82574_SYSTIM_REREADS 50
+#define E1000_82574_SYSTIM_EPSILON (1ULL << 35ULL)
+#endif /* HAVE_HW_TIME_STAMP */
+
+/* hardware capability, feature, and workaround flags */
+#define FLAG_HAS_AMT BIT(0)
+#define FLAG_HAS_FLASH BIT(1)
+#define FLAG_HAS_HW_VLAN_FILTER BIT(2)
+#define FLAG_HAS_WOL BIT(3)
+/* reserved BIT(4) */
+#define FLAG_HAS_CTRLEXT_ON_LOAD BIT(5)
+#define FLAG_HAS_SWSM_ON_LOAD BIT(6)
+#define FLAG_HAS_JUMBO_FRAMES BIT(7)
+/* reserved BIT(8) */
+#define FLAG_IS_ICH BIT(9)
+#define FLAG_HAS_MSIX BIT(10)
+#define FLAG_HAS_SMART_POWER_DOWN BIT(11)
+#define FLAG_IS_QUAD_PORT_A BIT(12)
+#define FLAG_IS_QUAD_PORT BIT(13)
+#define FLAG_HAS_HW_TIMESTAMP BIT(14)
+#define FLAG_APME_IN_WUC BIT(15)
+#define FLAG_APME_IN_CTRL3 BIT(16)
+#define FLAG_APME_CHECK_PORT_B BIT(17)
+#define FLAG_DISABLE_FC_PAUSE_TIME BIT(18)
+#define FLAG_NO_WAKE_UCAST BIT(19)
+#define FLAG_MNG_PT_ENABLED BIT(20)
+#define FLAG_RESET_OVERWRITES_LAA BIT(21)
+#define FLAG_TARC_SPEED_MODE_BIT BIT(22)
+#define FLAG_TARC_SET_BIT_ZERO BIT(23)
+#define FLAG_RX_NEEDS_RESTART BIT(24)
+#define FLAG_LSC_GIG_SPEED_DROP BIT(25)
+#define FLAG_SMART_POWER_DOWN BIT(26)
+#define FLAG_MSI_ENABLED BIT(27)
+#ifndef HAVE_NDO_SET_FEATURES
+#define FLAG_RX_CSUM_ENABLED BIT(28)
+#else
+/* reserved BIT(28) */
+#endif
+#define FLAG_TSO_FORCE BIT(29)
+#define FLAG_RESTART_NOW BIT(30)
+#define FLAG_MSI_TEST_FAILED BIT(31)
+
+#define FLAG2_CRC_STRIPPING BIT(0)
+#define FLAG2_HAS_PHY_WAKEUP BIT(1)
+#define FLAG2_IS_DISCARDING BIT(2)
+#define FLAG2_DISABLE_ASPM_L1 BIT(3)
+#define FLAG2_HAS_PHY_STATS BIT(4)
+#define FLAG2_HAS_EEE BIT(5)
+#define FLAG2_DMA_BURST BIT(6)
+#define FLAG2_DISABLE_ASPM_L0S BIT(7)
+#define FLAG2_DISABLE_AIM BIT(8)
+#define FLAG2_CHECK_PHY_HANG BIT(9)
+#define FLAG2_NO_DISABLE_RX BIT(10)
+#define FLAG2_PCIM2PCI_ARBITER_WA BIT(11)
+#define FLAG2_DFLT_CRC_STRIPPING BIT(12)
+#define FLAG2_CHECK_RX_HWTSTAMP BIT(13)
+#define FLAG2_CHECK_SYSTIM_OVERFLOW BIT(14)
+
+#define E1000_RX_DESC_PS(R, i) \
+ (&(((union e1000_rx_desc_packet_split *)((R).desc))[i]))
+#define E1000_RX_DESC_EXT(R, i) \
+ (&(((union e1000_rx_desc_extended *)((R).desc))[i]))
+#define E1000_GET_DESC(R, i, type) (&(((struct type *)((R).desc))[i]))
+#define E1000_TX_DESC(R, i) E1000_GET_DESC(R, i, e1000_tx_desc)
+#define E1000_CONTEXT_DESC(R, i) E1000_GET_DESC(R, i, e1000_context_desc)
+
+enum e1000_state_t {
+ __E1000_OBFF_DISABLED,
+ __E1000_TESTING,
+ __E1000_RESETTING,
+ __E1000_ACCESS_SHARED_RESOURCE,
+ __E1000_DOWN
+};
+
+enum latency_range {
+ lowest_latency = 0,
+ low_latency = 1,
+ bulk_latency = 2,
+ latency_invalid = 255
+};
+
+extern char e1000e_driver_name[];
+extern const char e1000e_driver_version[];
+
+void e1000e_check_options(struct e1000_adapter *adapter);
+void e1000e_set_ethtool_ops(struct net_device *netdev);
+#ifndef HAVE_ETHTOOL_SET_PHYS_ID
+extern void e1000e_led_blink_task(struct work_struct *work);
+#endif
+#ifdef ETHTOOL_OPS_COMPAT
+extern int ethtool_ioctl(struct ifreq *ifr);
+#endif
+
+int e1000e_open(struct net_device *netdev);
+int e1000e_close(struct net_device *netdev);
+void e1000e_up(struct e1000_adapter *adapter);
+void e1000e_down(struct e1000_adapter *adapter, bool reset);
+void e1000e_reinit_locked(struct e1000_adapter *adapter);
+void e1000e_reset(struct e1000_adapter *adapter);
+void e1000e_power_up_phy(struct e1000_adapter *adapter);
+int e1000e_setup_rx_resources(struct e1000_ring *ring);
+int e1000e_setup_tx_resources(struct e1000_ring *ring);
+void e1000e_free_rx_resources(struct e1000_ring *ring);
+void e1000e_free_tx_resources(struct e1000_ring *ring);
+#ifdef HAVE_NDO_GET_STATS64
+#ifdef HAVE_VOID_NDO_GET_STATS64
+void e1000e_get_stats64(struct net_device *netdev,
+ struct rtnl_link_stats64 *stats);
+#else
+struct rtnl_link_stats64 *e1000e_get_stats64(struct net_device *netdev,
+ struct rtnl_link_stats64 *stats);
+#endif /* HAVE_VOID_NDO_GET_STATS64 */
+#else /* HAVE_NDO_GET_STATS64 */
+extern void e1000e_update_stats(struct e1000_adapter *adapter);
+#endif /* HAVE_NDO_GET_STATS64 */
+void e1000e_set_interrupt_capability(struct e1000_adapter *adapter);
+void e1000e_reset_interrupt_capability(struct e1000_adapter *adapter);
+void e1000e_get_hw_control(struct e1000_adapter *adapter);
+void e1000e_release_hw_control(struct e1000_adapter *adapter);
+void e1000e_write_itr(struct e1000_adapter *adapter, u32 itr);
+
+extern unsigned int copybreak;
+
+extern const struct e1000_info e1000_82571_info;
+extern const struct e1000_info e1000_82572_info;
+extern const struct e1000_info e1000_82573_info;
+extern const struct e1000_info e1000_82574_info;
+extern const struct e1000_info e1000_82583_info;
+extern const struct e1000_info e1000_ich8_info;
+extern const struct e1000_info e1000_ich9_info;
+extern const struct e1000_info e1000_ich10_info;
+extern const struct e1000_info e1000_pch_info;
+extern const struct e1000_info e1000_pch2_info;
+extern const struct e1000_info e1000_pch_lpt_info;
+extern const struct e1000_info e1000_pch_spt_info;
+extern const struct e1000_info e1000_pch_cnp_info;
+extern const struct e1000_info e1000_es2_info;
+
+#ifdef HAVE_PTP_1588_CLOCK
+void e1000e_ptp_init(struct e1000_adapter *adapter);
+void e1000e_ptp_remove(struct e1000_adapter *adapter);
+u64 e1000e_read_systim(struct e1000_adapter *adapter,
+ struct ptp_system_timestamp *sts);
+#else
+#define e1000e_ptp_init(adapter) do {} while (0)
+#define e1000e_ptp_remove(adapter) do {} while (0)
+#endif
+
+static inline s32 e1000_phy_hw_reset(struct e1000_hw *hw)
+{
+ return hw->phy.ops.reset(hw);
+}
+
+static inline s32 e1e_rphy(struct e1000_hw *hw, u32 offset, u16 *data)
+{
+ return hw->phy.ops.read_reg(hw, offset, data);
+}
+
+static inline s32 e1e_rphy_locked(struct e1000_hw *hw, u32 offset, u16 *data)
+{
+ return hw->phy.ops.read_reg_locked(hw, offset, data);
+}
+
+static inline s32 e1e_wphy(struct e1000_hw *hw, u32 offset, u16 data)
+{
+ return hw->phy.ops.write_reg(hw, offset, data);
+}
+
+static inline s32 e1e_wphy_locked(struct e1000_hw *hw, u32 offset, u16 data)
+{
+ return hw->phy.ops.write_reg_locked(hw, offset, data);
+}
+
+void e1000e_reload_nvm_generic(struct e1000_hw *hw);
+
+static inline s32 e1000e_read_mac_addr(struct e1000_hw *hw)
+{
+ if (hw->mac.ops.read_mac_addr)
+ return hw->mac.ops.read_mac_addr(hw);
+
+ return e1000_read_mac_addr_generic(hw);
+}
+
+static inline s32 e1000_validate_nvm_checksum(struct e1000_hw *hw)
+{
+ return hw->nvm.ops.validate(hw);
+}
+
+static inline s32 e1000e_update_nvm_checksum(struct e1000_hw *hw)
+{
+ return hw->nvm.ops.update(hw);
+}
+
+static inline s32 e1000_read_nvm(struct e1000_hw *hw, u16 offset, u16 words,
+ u16 *data)
+{
+ return hw->nvm.ops.read(hw, offset, words, data);
+}
+
+static inline s32 e1000_write_nvm(struct e1000_hw *hw, u16 offset, u16 words,
+ u16 *data)
+{
+ return hw->nvm.ops.write(hw, offset, words, data);
+}
+
+static inline s32 e1000_get_phy_info(struct e1000_hw *hw)
+{
+ return hw->phy.ops.get_info(hw);
+}
+
+static inline u32 __er32(struct e1000_hw *hw, unsigned long reg)
+{
+ return readl(hw->hw_addr + reg);
+}
+
+#define er32(reg) __er32(hw, E1000_##reg)
+
+s32 __ew32_prepare(struct e1000_hw *hw);
+void __ew32(struct e1000_hw *hw, unsigned long reg, u32 val);
+
+#define ew32(reg, val) __ew32(hw, E1000_##reg, (val))
+
+#define e1e_flush() er32(STATUS)
+
+#define E1000_WRITE_REG_ARRAY(a, reg, offset, value) \
+ (__ew32((a), (reg + ((offset) << 2)), (value)))
+
+#define E1000_READ_REG_ARRAY(a, reg, offset) \
+ (readl((a)->hw_addr + reg + ((offset) << 2)))
+
+#endif /* _E1000_H_ */
diff --git a/src/ethtool.c b/src/ethtool.c
new file mode 100644
index 0000000..891f06d
--- /dev/null
+++ b/src/ethtool.c
@@ -0,0 +1,2878 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright(c) 1999 - 2020 Intel Corporation. */
+
+/* ethtool support for e1000 */
+
+#include <linux/netdevice.h>
+#include <linux/interrupt.h>
+#ifdef SIOCETHTOOL
+#include <linux/ethtool.h>
+#include <linux/pci.h>
+#include <linux/slab.h>
+#include <linux/delay.h>
+#include <linux/vmalloc.h>
+
+#include "e1000.h"
+#ifndef HAVE_NETDEV_VLAN_FEATURES
+#include <linux/if_vlan.h>
+#endif
+#ifdef ETHTOOL_OPS_COMPAT
+#include "kcompat_ethtool.c"
+#endif
+
+enum { NETDEV_STATS, E1000_STATS };
+
+struct e1000_stats {
+ char stat_string[ETH_GSTRING_LEN];
+ int type;
+ int sizeof_stat;
+ int stat_offset;
+};
+
+#define E1000_STAT(str, m) { \
+ .stat_string = str, \
+ .type = E1000_STATS, \
+ .sizeof_stat = sizeof(((struct e1000_adapter *)0)->m), \
+ .stat_offset = offsetof(struct e1000_adapter, m) }
+#ifdef HAVE_NDO_GET_STATS64
+#define E1000_NETDEV_STAT(str, m) { \
+ .stat_string = str, \
+ .type = NETDEV_STATS, \
+ .sizeof_stat = sizeof(((struct rtnl_link_stats64 *)0)->m), \
+ .stat_offset = offsetof(struct rtnl_link_stats64, m) }
+#elif defined(HAVE_NETDEV_STATS_IN_NETDEV)
+#define E1000_NETDEV_STAT(str, m) { \
+ .stat_string = str, \
+ .type = NETDEV_STATS, \
+ .sizeof_stat = sizeof(((struct net_device *)0)->m), \
+ .stat_offset = offsetof(struct net_device, m) }
+#else /* HAVE_NETDEV_STATS_IN_NETDEV */
+#define E1000_NETDEV_STAT(str, m) E1000_STAT(str, net_##m)
+#endif /* HAVE_NETDEV_STATS_IN_NETDEV */
+
+static const struct e1000_stats e1000_gstrings_stats[] = {
+ E1000_STAT("rx_packets", stats.gprc),
+ E1000_STAT("tx_packets", stats.gptc),
+ E1000_STAT("rx_bytes", stats.gorc),
+ E1000_STAT("tx_bytes", stats.gotc),
+ E1000_STAT("rx_broadcast", stats.bprc),
+ E1000_STAT("tx_broadcast", stats.bptc),
+ E1000_STAT("rx_multicast", stats.mprc),
+ E1000_STAT("tx_multicast", stats.mptc),
+#ifdef HAVE_NDO_GET_STATS64
+ E1000_NETDEV_STAT("rx_errors", rx_errors),
+ E1000_NETDEV_STAT("tx_errors", tx_errors),
+#else /* HAVE_NDO_GET_STATS64 */
+ E1000_NETDEV_STAT("rx_errors", stats.rx_errors),
+ E1000_NETDEV_STAT("tx_errors", stats.tx_errors),
+#endif /* HAVE_NDO_GET_STATS64 */
+#ifndef CONFIG_E1000E_NAPI
+ E1000_STAT("rx_dropped_backlog", rx_dropped_backlog),
+#endif
+#ifdef HAVE_NDO_GET_STATS64
+ E1000_NETDEV_STAT("tx_dropped", tx_dropped),
+#else /* HAVE_NDO_GET_STATS64 */
+ E1000_NETDEV_STAT("tx_dropped", stats.tx_dropped),
+#endif /* HAVE_NDO_GET_STATS64 */
+ E1000_STAT("multicast", stats.mprc),
+ E1000_STAT("collisions", stats.colc),
+#ifdef HAVE_NDO_GET_STATS64
+ E1000_NETDEV_STAT("rx_length_errors", rx_length_errors),
+ E1000_NETDEV_STAT("rx_over_errors", rx_over_errors),
+#else /* HAVE_NDO_GET_STATS64 */
+ E1000_NETDEV_STAT("rx_length_errors", stats.rx_length_errors),
+ E1000_NETDEV_STAT("rx_over_errors", stats.rx_over_errors),
+#endif /* HAVE_NDO_GET_STATS64 */
+ E1000_STAT("rx_crc_errors", stats.crcerrs),
+#ifdef HAVE_NDO_GET_STATS64
+ E1000_NETDEV_STAT("rx_frame_errors", rx_frame_errors),
+#else /* HAVE_NDO_GET_STATS64 */
+ E1000_NETDEV_STAT("rx_frame_errors", stats.rx_frame_errors),
+#endif /* HAVE_NDO_GET_STATS64 */
+ E1000_STAT("rx_no_buffer_count", stats.rnbc),
+ E1000_STAT("rx_missed_errors", stats.mpc),
+ E1000_STAT("tx_aborted_errors", stats.ecol),
+ E1000_STAT("tx_carrier_errors", stats.tncrs),
+#ifdef HAVE_NDO_GET_STATS64
+ E1000_NETDEV_STAT("tx_fifo_errors", tx_fifo_errors),
+ E1000_NETDEV_STAT("tx_heartbeat_errors", tx_heartbeat_errors),
+#else /* HAVE_NDO_GET_STATS64 */
+ E1000_NETDEV_STAT("tx_fifo_errors", stats.tx_fifo_errors),
+ E1000_NETDEV_STAT("tx_heartbeat_errors", stats.tx_heartbeat_errors),
+#endif /* HAVE_NDO_GET_STATS64 */
+ E1000_STAT("tx_window_errors", stats.latecol),
+ E1000_STAT("tx_abort_late_coll", stats.latecol),
+ E1000_STAT("tx_deferred_ok", stats.dc),
+ E1000_STAT("tx_single_coll_ok", stats.scc),
+ E1000_STAT("tx_multi_coll_ok", stats.mcc),
+ E1000_STAT("tx_timeout_count", tx_timeout_count),
+ E1000_STAT("tx_restart_queue", restart_queue),
+ E1000_STAT("rx_long_length_errors", stats.roc),
+ E1000_STAT("rx_short_length_errors", stats.ruc),
+ E1000_STAT("rx_align_errors", stats.algnerrc),
+ E1000_STAT("tx_tcp_seg_good", stats.tsctc),
+ E1000_STAT("tx_tcp_seg_failed", stats.tsctfc),
+ E1000_STAT("rx_flow_control_xon", stats.xonrxc),
+ E1000_STAT("rx_flow_control_xoff", stats.xoffrxc),
+ E1000_STAT("tx_flow_control_xon", stats.xontxc),
+ E1000_STAT("tx_flow_control_xoff", stats.xofftxc),
+ E1000_STAT("rx_csum_offload_good", hw_csum_good),
+ E1000_STAT("rx_csum_offload_errors", hw_csum_err),
+ E1000_STAT("rx_header_split", rx_hdr_split),
+ E1000_STAT("alloc_rx_buff_failed", alloc_rx_buff_failed),
+ E1000_STAT("tx_smbus", stats.mgptc),
+ E1000_STAT("rx_smbus", stats.mgprc),
+ E1000_STAT("dropped_smbus", stats.mgpdc),
+ E1000_STAT("rx_dma_failed", rx_dma_failed),
+ E1000_STAT("tx_dma_failed", tx_dma_failed),
+#ifdef HAVE_HW_TIME_STAMP
+ E1000_STAT("rx_hwtstamp_cleared", rx_hwtstamp_cleared),
+#endif
+ E1000_STAT("uncorr_ecc_errors", uncorr_errors),
+ E1000_STAT("corr_ecc_errors", corr_errors),
+#ifdef HAVE_HW_TIME_STAMP
+ E1000_STAT("tx_hwtstamp_timeouts", tx_hwtstamp_timeouts),
+ E1000_STAT("tx_hwtstamp_skipped", tx_hwtstamp_skipped),
+#endif
+};
+
+#define E1000_GLOBAL_STATS_LEN ARRAY_SIZE(e1000_gstrings_stats)
+#define E1000_STATS_LEN (E1000_GLOBAL_STATS_LEN)
+static const char e1000_gstrings_test[][ETH_GSTRING_LEN] = {
+ "Register test (offline)", "Eeprom test (offline)",
+ "Interrupt test (offline)", "Loopback test (offline)",
+ "Link test (on/offline)"
+};
+
+#define E1000_TEST_LEN ARRAY_SIZE(e1000_gstrings_test)
+
+#ifdef HAVE_ETHTOOL_CONVERT_U32_AND_LINK_MODE
+static int e1000_get_link_ksettings(struct net_device *netdev,
+ struct ethtool_link_ksettings *cmd)
+{
+ struct e1000_adapter *adapter = netdev_priv(netdev);
+ struct e1000_hw *hw = &adapter->hw;
+ u32 speed, supported, advertising;
+
+ if (hw->phy.media_type == e1000_media_type_copper) {
+ supported = (SUPPORTED_10baseT_Half |
+ SUPPORTED_10baseT_Full |
+ SUPPORTED_100baseT_Half |
+ SUPPORTED_100baseT_Full |
+ SUPPORTED_1000baseT_Full |
+ SUPPORTED_Autoneg |
+ SUPPORTED_TP);
+ if (hw->phy.type == e1000_phy_ife)
+ supported &= ~SUPPORTED_1000baseT_Full;
+ advertising = ADVERTISED_TP;
+
+ if (hw->mac.autoneg == 1) {
+ advertising |= ADVERTISED_Autoneg;
+ /* the e1000 autoneg seems to match ethtool nicely */
+ advertising |= hw->phy.autoneg_advertised;
+ }
+
+ cmd->base.port = PORT_TP;
+ cmd->base.phy_address = hw->phy.addr;
+
+ } else {
+ supported = (SUPPORTED_1000baseT_Full |
+ SUPPORTED_FIBRE |
+ SUPPORTED_Autoneg);
+
+ advertising = (ADVERTISED_1000baseT_Full |
+ ADVERTISED_FIBRE |
+ ADVERTISED_Autoneg);
+
+ cmd->base.port = PORT_FIBRE;
+ }
+
+ speed = SPEED_UNKNOWN;
+ cmd->base.duplex = DUPLEX_UNKNOWN;
+
+ if (netif_running(netdev)) {
+ if (netif_carrier_ok(netdev)) {
+ speed = adapter->link_speed;
+ cmd->base.duplex = adapter->link_duplex - 1;
+ }
+ } else if (!pm_runtime_suspended((netdev_to_dev(netdev))->parent)) {
+ u32 status = er32(STATUS);
+
+ if (status & E1000_STATUS_LU) {
+ if (status & E1000_STATUS_SPEED_1000)
+ speed = SPEED_1000;
+ else if (status & E1000_STATUS_SPEED_100)
+ speed = SPEED_100;
+ else
+ speed = SPEED_10;
+
+ if (status & E1000_STATUS_FD)
+ cmd->base.duplex = DUPLEX_FULL;
+ else
+ cmd->base.duplex = DUPLEX_HALF;
+ }
+ }
+
+ cmd->base.speed = speed;
+ cmd->base.autoneg = ((hw->phy.media_type == e1000_media_type_fiber) ||
+ hw->mac.
+ autoneg) ? AUTONEG_ENABLE : AUTONEG_DISABLE;
+
+#ifdef ETH_TP_MDI_X
+ /* MDI-X => 2; MDI =>1; Invalid =>0 */
+ if (hw->phy.media_type == e1000_media_type_copper &&
+ netif_carrier_ok(netdev))
+ cmd->base.eth_tp_mdix = hw->phy.is_mdix ?
+ ETH_TP_MDI_X : ETH_TP_MDI;
+ else
+ cmd->base.eth_tp_mdix = ETH_TP_MDI_INVALID;
+
+#ifdef ETH_TP_MDI_AUTO
+ if (hw->phy.mdix == AUTO_ALL_MODES)
+ cmd->base.eth_tp_mdix_ctrl = ETH_TP_MDI_AUTO;
+ else
+ cmd->base.eth_tp_mdix_ctrl = hw->phy.mdix;
+
+ if (hw->phy.media_type != e1000_media_type_copper)
+ cmd->base.eth_tp_mdix_ctrl = ETH_TP_MDI_INVALID;
+#endif
+#endif /* ETH_TP_MDI_X */
+
+ ethtool_convert_legacy_u32_to_link_mode(cmd->link_modes.supported,
+ supported);
+ ethtool_convert_legacy_u32_to_link_mode(cmd->link_modes.advertising,
+ advertising);
+
+ return 0;
+}
+
+#else /* !HAVE_ETHTOOL_CONVERT_U32_AND_LINK_MODE */
+static int e1000_get_settings(struct net_device *netdev,
+ struct ethtool_cmd *ecmd)
+{
+ struct e1000_adapter *adapter = netdev_priv(netdev);
+ struct e1000_hw *hw = &adapter->hw;
+ u32 speed;
+
+ if (hw->phy.media_type == e1000_media_type_copper) {
+ ecmd->supported = (SUPPORTED_10baseT_Half |
+ SUPPORTED_10baseT_Full |
+ SUPPORTED_100baseT_Half |
+ SUPPORTED_100baseT_Full |
+ SUPPORTED_1000baseT_Full |
+ SUPPORTED_Autoneg |
+ SUPPORTED_TP);
+ if (hw->phy.type == e1000_phy_ife)
+ ecmd->supported &= ~SUPPORTED_1000baseT_Full;
+ ecmd->advertising = ADVERTISED_TP;
+
+ if (hw->mac.autoneg == 1) {
+ ecmd->advertising |= ADVERTISED_Autoneg;
+ /* the e1000 autoneg seems to match ethtool nicely */
+ ecmd->advertising |= hw->phy.autoneg_advertised;
+ }
+
+ ecmd->port = PORT_TP;
+ ecmd->phy_address = hw->phy.addr;
+ ecmd->transceiver = XCVR_INTERNAL;
+
+ } else {
+ ecmd->supported = (SUPPORTED_1000baseT_Full |
+ SUPPORTED_FIBRE |
+ SUPPORTED_Autoneg);
+
+ ecmd->advertising = (ADVERTISED_1000baseT_Full |
+ ADVERTISED_FIBRE |
+ ADVERTISED_Autoneg);
+
+ ecmd->port = PORT_FIBRE;
+ ecmd->transceiver = XCVR_EXTERNAL;
+ }
+
+ speed = SPEED_UNKNOWN;
+ ecmd->duplex = DUPLEX_UNKNOWN;
+
+ if (netif_running(netdev)) {
+ if (netif_carrier_ok(netdev)) {
+ speed = adapter->link_speed;
+ ecmd->duplex = adapter->link_duplex - 1;
+ }
+ } else if (!pm_runtime_suspended((netdev_to_dev(netdev))->parent)) {
+ u32 status = er32(STATUS);
+
+ if (status & E1000_STATUS_LU) {
+ if (status & E1000_STATUS_SPEED_1000)
+ speed = SPEED_1000;
+ else if (status & E1000_STATUS_SPEED_100)
+ speed = SPEED_100;
+ else
+ speed = SPEED_10;
+
+ if (status & E1000_STATUS_FD)
+ ecmd->duplex = DUPLEX_FULL;
+ else
+ ecmd->duplex = DUPLEX_HALF;
+ }
+ }
+
+ ethtool_cmd_speed_set(ecmd, speed);
+ ecmd->autoneg = ((hw->phy.media_type == e1000_media_type_fiber) ||
+ hw->mac.autoneg) ? AUTONEG_ENABLE : AUTONEG_DISABLE;
+
+#ifdef ETH_TP_MDI_X
+ /* MDI-X => 2; MDI =>1; Invalid =>0 */
+ if ((hw->phy.media_type == e1000_media_type_copper) &&
+ netif_carrier_ok(netdev))
+ ecmd->eth_tp_mdix = hw->phy.is_mdix ? ETH_TP_MDI_X : ETH_TP_MDI;
+ else
+ ecmd->eth_tp_mdix = ETH_TP_MDI_INVALID;
+
+#ifdef ETH_TP_MDI_AUTO
+ if (hw->phy.mdix == AUTO_ALL_MODES)
+ ecmd->eth_tp_mdix_ctrl = ETH_TP_MDI_AUTO;
+ else
+ ecmd->eth_tp_mdix_ctrl = hw->phy.mdix;
+ if (hw->phy.media_type != e1000_media_type_copper)
+ ecmd->eth_tp_mdix_ctrl = ETH_TP_MDI_INVALID;
+#endif
+#endif /* ETH_TP_MDI_X */
+ return 0;
+}
+#endif /* HAVE_ETHTOOL_CONVERT_U32_AND_LINK_MODE */
+
+static int e1000_set_spd_dplx(struct e1000_adapter *adapter, u32 spd, u8 dplx)
+{
+ struct e1000_mac_info *mac = &adapter->hw.mac;
+
+ mac->autoneg = 0;
+
+ /* Make sure dplx is at most 1 bit and lsb of speed is not set
+ * for the switch() below to work
+ */
+ if ((spd & 1) || (dplx & ~1))
+ goto err_inval;
+
+ /* Fiber NICs only allow 1000 gbps Full duplex */
+ if ((adapter->hw.phy.media_type == e1000_media_type_fiber) &&
+ (spd != SPEED_1000) && (dplx != DUPLEX_FULL)) {
+ goto err_inval;
+ }
+
+ switch (spd + dplx) {
+ case SPEED_10 + DUPLEX_HALF:
+ mac->forced_speed_duplex = ADVERTISE_10_HALF;
+ break;
+ case SPEED_10 + DUPLEX_FULL:
+ mac->forced_speed_duplex = ADVERTISE_10_FULL;
+ break;
+ case SPEED_100 + DUPLEX_HALF:
+ mac->forced_speed_duplex = ADVERTISE_100_HALF;
+ break;
+ case SPEED_100 + DUPLEX_FULL:
+ mac->forced_speed_duplex = ADVERTISE_100_FULL;
+ break;
+ case SPEED_1000 + DUPLEX_FULL:
+ if (adapter->hw.phy.media_type == e1000_media_type_copper) {
+ mac->autoneg = 1;
+ adapter->hw.phy.autoneg_advertised =
+ ADVERTISE_1000_FULL;
+ } else {
+ mac->forced_speed_duplex = ADVERTISE_1000_FULL;
+ }
+ break;
+ case SPEED_1000 + DUPLEX_HALF: /* not supported */
+ default:
+ goto err_inval;
+ }
+
+ /* clear MDI, MDI(-X) override is only allowed when autoneg enabled */
+ adapter->hw.phy.mdix = AUTO_ALL_MODES;
+
+ return 0;
+
+err_inval:
+ e_err("Unsupported Speed/Duplex configuration\n");
+ return -EINVAL;
+}
+
+#ifdef HAVE_ETHTOOL_CONVERT_U32_AND_LINK_MODE
+static int e1000_set_link_ksettings(struct net_device *netdev,
+ const struct ethtool_link_ksettings *cmd)
+{
+ struct e1000_adapter *adapter = netdev_priv(netdev);
+ struct e1000_hw *hw = &adapter->hw;
+ int ret_val = 0;
+ u32 advertising;
+
+ ethtool_convert_link_mode_to_legacy_u32(&advertising,
+ cmd->link_modes.advertising);
+
+ pm_runtime_get_sync((netdev_to_dev(netdev))->parent);
+
+ /* When SoL/IDER sessions are active, autoneg/speed/duplex
+ * cannot be changed
+ */
+ if (hw->phy.ops.check_reset_block &&
+ hw->phy.ops.check_reset_block(hw)) {
+ e_err("Cannot change link characteristics when SoL/IDER is active.\n");
+ ret_val = -EINVAL;
+ goto out;
+ }
+
+#ifdef ETH_TP_MDI_AUTO
+ /* MDI setting is only allowed when autoneg enabled because
+ * some hardware doesn't allow MDI setting when speed or
+ * duplex is forced.
+ */
+ if (cmd->base.eth_tp_mdix_ctrl) {
+ if (hw->phy.media_type != e1000_media_type_copper) {
+ ret_val = -EOPNOTSUPP;
+ goto out;
+ }
+
+ if (cmd->base.eth_tp_mdix_ctrl != ETH_TP_MDI_AUTO &&
+ cmd->base.autoneg != AUTONEG_ENABLE) {
+ e_err("forcing MDI/MDI-X state is not supported when link speed and/or duplex are forced\n");
+ ret_val = -EINVAL;
+ goto out;
+ }
+ }
+#endif /* ETH_TP_MDI_AUTO */
+ while (test_and_set_bit(__E1000_RESETTING, &adapter->state))
+ usleep_range(1000, 2000);
+
+ if (cmd->base.autoneg == AUTONEG_ENABLE) {
+ hw->mac.autoneg = 1;
+ if (hw->phy.media_type == e1000_media_type_fiber)
+ hw->phy.autoneg_advertised = ADVERTISED_1000baseT_Full |
+ ADVERTISED_FIBRE | ADVERTISED_Autoneg;
+ else
+ hw->phy.autoneg_advertised = advertising |
+ ADVERTISED_TP | ADVERTISED_Autoneg;
+ advertising = hw->phy.autoneg_advertised;
+ if (adapter->fc_autoneg)
+ hw->fc.requested_mode = e1000_fc_default;
+ } else {
+ u32 speed = cmd->base.speed;
+ /* calling this overrides forced MDI setting */
+ if (e1000_set_spd_dplx(adapter, speed, cmd->base.duplex)) {
+ ret_val = -EINVAL;
+ goto out;
+ }
+ }
+
+#ifdef ETH_TP_MDI_AUTO
+ /* MDI-X => 2; MDI => 1; Auto => 3 */
+ if (cmd->base.eth_tp_mdix_ctrl) {
+ /* fix up the value for auto (3 => 0) as zero is mapped
+ * internally to auto
+ */
+ if (cmd->base.eth_tp_mdix_ctrl == ETH_TP_MDI_AUTO)
+ hw->phy.mdix = AUTO_ALL_MODES;
+ else
+ hw->phy.mdix = cmd->base.eth_tp_mdix_ctrl;
+ }
+#endif
+ /* reset the link */
+ if (netif_running(adapter->netdev)) {
+ e1000e_down(adapter, true);
+ e1000e_up(adapter);
+ } else {
+ e1000e_reset(adapter);
+ }
+
+out:
+ pm_runtime_put_sync(netdev->dev.parent);
+ clear_bit(__E1000_RESETTING, &adapter->state);
+ return ret_val;
+}
+#else /* !HAVE_ETHTOOL_CONVERT_U32_AND_LINK_MODE */
+static int e1000_set_settings(struct net_device *netdev,
+ struct ethtool_cmd *ecmd)
+{
+ struct e1000_adapter *adapter = netdev_priv(netdev);
+ struct e1000_hw *hw = &adapter->hw;
+ int ret_val = 0;
+
+ pm_runtime_get_sync((netdev_to_dev(netdev))->parent);
+
+ /* When SoL/IDER sessions are active, autoneg/speed/duplex
+ * cannot be changed
+ */
+ if (hw->phy.ops.check_reset_block &&
+ hw->phy.ops.check_reset_block(hw)) {
+ e_err("Cannot change link characteristics when SoL/IDER is active.\n");
+ ret_val = -EINVAL;
+ goto out;
+ }
+
+#ifdef ETH_TP_MDI_AUTO
+ /* MDI setting is only allowed when autoneg enabled because
+ * some hardware doesn't allow MDI setting when speed or
+ * duplex is forced.
+ */
+ if (ecmd->eth_tp_mdix_ctrl) {
+ if (hw->phy.media_type != e1000_media_type_copper) {
+ ret_val = -EOPNOTSUPP;
+ goto out;
+ }
+
+ if ((ecmd->eth_tp_mdix_ctrl != ETH_TP_MDI_AUTO) &&
+ (ecmd->autoneg != AUTONEG_ENABLE)) {
+ e_err("forcing MDI/MDI-X state is not supported when link speed and/or duplex are forced\n");
+ ret_val = -EINVAL;
+ goto out;
+ }
+ }
+#endif /* ETH_TP_MDI_AUTO */
+ while (test_and_set_bit(__E1000_RESETTING, &adapter->state))
+ usleep_range(1000, 2000);
+
+ if (ecmd->autoneg == AUTONEG_ENABLE) {
+ hw->mac.autoneg = 1;
+ if (hw->phy.media_type == e1000_media_type_fiber)
+ hw->phy.autoneg_advertised = ADVERTISED_1000baseT_Full |
+ ADVERTISED_FIBRE | ADVERTISED_Autoneg;
+ else
+ hw->phy.autoneg_advertised = ecmd->advertising |
+ ADVERTISED_TP | ADVERTISED_Autoneg;
+ ecmd->advertising = hw->phy.autoneg_advertised;
+ if (adapter->fc_autoneg)
+ hw->fc.requested_mode = e1000_fc_default;
+ } else {
+ u32 speed = ethtool_cmd_speed(ecmd);
+ /* calling this overrides forced MDI setting */
+ if (e1000_set_spd_dplx(adapter, speed, ecmd->duplex)) {
+ ret_val = -EINVAL;
+ goto out;
+ }
+ }
+
+#ifdef ETH_TP_MDI_AUTO
+ /* MDI-X => 2; MDI => 1; Auto => 3 */
+ if (ecmd->eth_tp_mdix_ctrl) {
+ /* fix up the value for auto (3 => 0) as zero is mapped
+ * internally to auto
+ */
+ if (ecmd->eth_tp_mdix_ctrl == ETH_TP_MDI_AUTO)
+ hw->phy.mdix = AUTO_ALL_MODES;
+ else
+ hw->phy.mdix = ecmd->eth_tp_mdix_ctrl;
+ }
+#endif /* ETH_TP_MDI_AUTO */
+ /* reset the link */
+ if (netif_running(adapter->netdev)) {
+ e1000e_down(adapter, true);
+ e1000e_up(adapter);
+ } else {
+ e1000e_reset(adapter);
+ }
+
+out:
+ pm_runtime_put_sync(netdev->dev.parent);
+ clear_bit(__E1000_RESETTING, &adapter->state);
+ return ret_val;
+}
+#endif /* HAVE_ETHTOOL_CONVERT_U32_AND_LINK_MODE */
+
+static void e1000_get_pauseparam(struct net_device *netdev,
+ struct ethtool_pauseparam *pause)
+{
+ struct e1000_adapter *adapter = netdev_priv(netdev);
+ struct e1000_hw *hw = &adapter->hw;
+
+ pause->autoneg =
+ (adapter->fc_autoneg ? AUTONEG_ENABLE : AUTONEG_DISABLE);
+
+ if (hw->fc.current_mode == e1000_fc_rx_pause) {
+ pause->rx_pause = 1;
+ } else if (hw->fc.current_mode == e1000_fc_tx_pause) {
+ pause->tx_pause = 1;
+ } else if (hw->fc.current_mode == e1000_fc_full) {
+ pause->rx_pause = 1;
+ pause->tx_pause = 1;
+ }
+}
+
+static int e1000_set_pauseparam(struct net_device *netdev,
+ struct ethtool_pauseparam *pause)
+{
+ struct e1000_adapter *adapter = netdev_priv(netdev);
+ struct e1000_hw *hw = &adapter->hw;
+ int retval = 0;
+
+ adapter->fc_autoneg = pause->autoneg;
+
+ while (test_and_set_bit(__E1000_RESETTING, &adapter->state))
+ usleep_range(1000, 2000);
+
+ pm_runtime_get_sync((netdev_to_dev(netdev))->parent);
+
+ if (adapter->fc_autoneg == AUTONEG_ENABLE) {
+ hw->fc.requested_mode = e1000_fc_default;
+ if (netif_running(adapter->netdev)) {
+ e1000e_down(adapter, true);
+ e1000e_up(adapter);
+ } else {
+ e1000e_reset(adapter);
+ }
+ } else {
+ if (pause->rx_pause && pause->tx_pause)
+ hw->fc.requested_mode = e1000_fc_full;
+ else if (pause->rx_pause && !pause->tx_pause)
+ hw->fc.requested_mode = e1000_fc_rx_pause;
+ else if (!pause->rx_pause && pause->tx_pause)
+ hw->fc.requested_mode = e1000_fc_tx_pause;
+ else if (!pause->rx_pause && !pause->tx_pause)
+ hw->fc.requested_mode = e1000_fc_none;
+
+ hw->fc.current_mode = hw->fc.requested_mode;
+
+ if (hw->phy.media_type == e1000_media_type_fiber) {
+ retval = hw->mac.ops.setup_link(hw);
+ /* implicit goto out */
+ } else {
+ retval = e1000e_force_mac_fc(hw);
+ if (retval)
+ goto out;
+ e1000e_set_fc_watermarks(hw);
+ }
+ }
+
+out:
+ pm_runtime_put_sync(netdev->dev.parent);
+ clear_bit(__E1000_RESETTING, &adapter->state);
+ return retval;
+}
+
+#ifndef HAVE_NDO_SET_FEATURES
+static u32 e1000_get_rx_csum(struct net_device *netdev)
+{
+ struct e1000_adapter *adapter = netdev_priv(netdev);
+ return adapter->flags & FLAG_RX_CSUM_ENABLED;
+}
+
+static int e1000_set_rx_csum(struct net_device *netdev, u32 data)
+{
+ struct e1000_adapter *adapter = netdev_priv(netdev);
+
+ if (data)
+ adapter->flags |= FLAG_RX_CSUM_ENABLED;
+ else
+ adapter->flags &= ~FLAG_RX_CSUM_ENABLED;
+
+ pm_runtime_get_sync((netdev_to_dev(netdev))->parent);
+
+ if (netif_running(netdev))
+ e1000e_reinit_locked(adapter);
+ else
+ e1000e_reset(adapter);
+
+ pm_runtime_put_sync(netdev->dev.parent);
+
+ return 0;
+}
+
+static u32 e1000_get_tx_csum(struct net_device *netdev)
+{
+ return (netdev->features & NETIF_F_HW_CSUM) != 0;
+}
+
+static int e1000_set_tx_csum(struct net_device *netdev, u32 data)
+{
+ if (data)
+ netdev->features |= NETIF_F_HW_CSUM;
+ else
+ netdev->features &= ~NETIF_F_HW_CSUM;
+
+ return 0;
+}
+
+#ifdef NETIF_F_TSO
+static int e1000_set_tso(struct net_device *netdev, u32 data)
+{
+ struct e1000_adapter *adapter = netdev_priv(netdev);
+#ifndef HAVE_NETDEV_VLAN_FEATURES
+ int i;
+ struct net_device *v_netdev;
+#endif /* HAVE_NETDEV_VLAN_FEATURES */
+
+ if (data) {
+ netdev->features |= NETIF_F_TSO;
+#ifdef NETIF_F_TSO6
+ netdev->features |= NETIF_F_TSO6;
+#endif
+ } else {
+ netdev->features &= ~NETIF_F_TSO;
+#ifdef NETIF_F_TSO6
+ netdev->features &= ~NETIF_F_TSO6;
+#endif
+#ifndef HAVE_NETDEV_VLAN_FEATURES
+ /* disable TSO on all VLANs if they're present */
+ if (!adapter->vlgrp)
+ goto tso_out;
+ for (i = 0; i < VLAN_GROUP_ARRAY_LEN; i++) {
+ v_netdev = vlan_group_get_device(adapter->vlgrp, i);
+ if (!v_netdev)
+ continue;
+
+ v_netdev->features &= ~NETIF_F_TSO;
+#ifdef NETIF_F_TSO6
+ v_netdev->features &= ~NETIF_F_TSO6;
+#endif
+ vlan_group_set_device(adapter->vlgrp, i, v_netdev);
+ }
+#endif /* HAVE_NETDEV_VLAN_FEATURES */
+ }
+
+#ifndef HAVE_NETDEV_VLAN_FEATURES
+tso_out:
+#endif /* HAVE_NETDEV_VLAN_FEATURES */
+ adapter->flags |= FLAG_TSO_FORCE;
+ return 0;
+}
+
+#endif /* NETIF_F_TSO */
+#if defined(ETHTOOL_SFLAGS) && (defined(NETIF_F_RXHASH) || !defined(HAVE_VLAN_RX_REGISTER))
+static int e1000e_set_flags(struct net_device *netdev, u32 data)
+{
+ struct e1000_adapter *adapter = netdev_priv(netdev);
+ u32 supported = 0, changed = netdev->features ^ data;
+ int rc;
+
+#ifdef NETIF_F_RXHASH
+ supported |= ETH_FLAG_RXHASH;
+#endif
+#ifndef HAVE_VLAN_RX_REGISTER
+ supported |= ETH_FLAG_RXVLAN | ETH_FLAG_TXVLAN;
+#endif
+
+ rc = ethtool_op_set_flags(netdev, data, supported);
+ if (rc)
+ return rc;
+
+ if (changed & supported) {
+ pm_runtime_get_sync((netdev_to_dev(netdev))->parent);
+
+ if (netif_running(netdev))
+ e1000e_reinit_locked(adapter);
+ else
+ e1000e_reset(adapter);
+
+ pm_runtime_put_sync(netdev->dev.parent);
+ }
+
+ return 0;
+}
+
+#endif /* ETHTOOL_SFLAGS */
+#endif /* HAVE_NDO_SET_FEATURES */
+static u32 e1000_get_msglevel(struct net_device *netdev)
+{
+ struct e1000_adapter *adapter = netdev_priv(netdev);
+ return adapter->msg_enable;
+}
+
+static void e1000_set_msglevel(struct net_device *netdev, u32 data)
+{
+ struct e1000_adapter *adapter = netdev_priv(netdev);
+ adapter->msg_enable = data;
+}
+
+static int e1000_get_regs_len(struct net_device __always_unused *netdev)
+{
+#define E1000_REGS_LEN 32 /* overestimate */
+ return E1000_REGS_LEN * sizeof(u32);
+}
+
+static void e1000_get_regs(struct net_device *netdev,
+ struct ethtool_regs *regs, void *p)
+{
+ struct e1000_adapter *adapter = netdev_priv(netdev);
+ struct e1000_hw *hw = &adapter->hw;
+ u32 *regs_buff = p;
+ u16 phy_data;
+ u8 revision_id;
+
+ pm_runtime_get_sync((netdev_to_dev(netdev))->parent);
+
+ memset(p, 0, E1000_REGS_LEN * sizeof(u32));
+
+ pci_read_config_byte(adapter->pdev, PCI_REVISION_ID, &revision_id);
+
+ regs->version =
+ (1u << 24) | (revision_id << 16) | adapter->pdev->device;
+
+ regs_buff[0] = er32(CTRL);
+ regs_buff[1] = er32(STATUS);
+
+ regs_buff[2] = er32(RCTL);
+ regs_buff[3] = er32(RDLEN(0));
+ regs_buff[4] = er32(RDH(0));
+ regs_buff[5] = er32(RDT(0));
+ regs_buff[6] = er32(RDTR);
+
+ regs_buff[7] = er32(TCTL);
+ regs_buff[8] = er32(TDLEN(0));
+ regs_buff[9] = er32(TDH(0));
+ regs_buff[10] = er32(TDT(0));
+ regs_buff[11] = er32(TIDV);
+
+ regs_buff[12] = adapter->hw.phy.type; /* PHY type (IGP=1, M88=0) */
+
+ /* ethtool doesn't use anything past this point, so all this
+ * code is likely legacy junk for apps that may or may not exist
+ */
+ if (hw->phy.type == e1000_phy_m88) {
+ e1e_rphy(hw, M88E1000_PHY_SPEC_STATUS, &phy_data);
+ regs_buff[13] = (u32)phy_data; /* cable length */
+ regs_buff[14] = 0; /* Dummy (to align w/ IGP phy reg dump) */
+ regs_buff[15] = 0; /* Dummy (to align w/ IGP phy reg dump) */
+ regs_buff[16] = 0; /* Dummy (to align w/ IGP phy reg dump) */
+ e1e_rphy(hw, M88E1000_PHY_SPEC_CTRL, &phy_data);
+ regs_buff[17] = (u32)phy_data; /* extended 10bt distance */
+ regs_buff[18] = regs_buff[13]; /* cable polarity */
+ regs_buff[19] = 0; /* Dummy (to align w/ IGP phy reg dump) */
+ regs_buff[20] = regs_buff[17]; /* polarity correction */
+ /* phy receive errors */
+ regs_buff[22] = adapter->phy_stats.receive_errors;
+ regs_buff[23] = regs_buff[13]; /* mdix mode */
+ }
+ regs_buff[21] = 0; /* was idle_errors */
+ e1e_rphy(hw, MII_STAT1000, &phy_data);
+ regs_buff[24] = (u32)phy_data; /* phy local receiver status */
+ regs_buff[25] = regs_buff[24]; /* phy remote receiver status */
+
+ pm_runtime_put_sync(netdev->dev.parent);
+}
+
+static int e1000_get_eeprom_len(struct net_device *netdev)
+{
+ struct e1000_adapter *adapter = netdev_priv(netdev);
+ return adapter->hw.nvm.word_size * 2;
+}
+
+static int e1000_get_eeprom(struct net_device *netdev,
+ struct ethtool_eeprom *eeprom, u8 *bytes)
+{
+ struct e1000_adapter *adapter = netdev_priv(netdev);
+ struct e1000_hw *hw = &adapter->hw;
+ u16 *eeprom_buff;
+ int first_word;
+ int last_word;
+ int ret_val = 0;
+ u16 i;
+
+ if (eeprom->len == 0)
+ return -EINVAL;
+
+ eeprom->magic = adapter->pdev->vendor | (adapter->pdev->device << 16);
+
+ first_word = eeprom->offset >> 1;
+ last_word = (eeprom->offset + eeprom->len - 1) >> 1;
+
+ eeprom_buff = kmalloc(sizeof(u16) * (last_word - first_word + 1),
+ GFP_KERNEL);
+ if (!eeprom_buff)
+ return -ENOMEM;
+
+ pm_runtime_get_sync((netdev_to_dev(netdev))->parent);
+
+ if (hw->nvm.type == e1000_nvm_eeprom_spi) {
+ ret_val = e1000_read_nvm(hw, first_word,
+ last_word - first_word + 1,
+ eeprom_buff);
+ } else {
+ for (i = 0; i < last_word - first_word + 1; i++) {
+ ret_val = e1000_read_nvm(hw, first_word + i, 1,
+ &eeprom_buff[i]);
+ if (ret_val)
+ break;
+ }
+ }
+
+ pm_runtime_put_sync(netdev->dev.parent);
+
+ if (ret_val) {
+ /* a read error occurred, throw away the result */
+ memset(eeprom_buff, 0xff, sizeof(u16) *
+ (last_word - first_word + 1));
+ } else {
+ /* Device's eeprom is always little-endian, word addressable */
+ for (i = 0; i < last_word - first_word + 1; i++)
+ le16_to_cpus(&eeprom_buff[i]);
+ }
+
+ memcpy(bytes, (u8 *)eeprom_buff + (eeprom->offset & 1), eeprom->len);
+ kfree(eeprom_buff);
+
+ return ret_val;
+}
+
+static int e1000_set_eeprom(struct net_device *netdev,
+ struct ethtool_eeprom *eeprom, u8 *bytes)
+{
+ struct e1000_adapter *adapter = netdev_priv(netdev);
+ struct e1000_hw *hw = &adapter->hw;
+ u16 *eeprom_buff;
+ void *ptr;
+ int max_len;
+ int first_word;
+ int last_word;
+ int ret_val = 0;
+ u16 i;
+
+ if (eeprom->len == 0)
+ return -EOPNOTSUPP;
+
+ if (eeprom->magic !=
+ (adapter->pdev->vendor | (adapter->pdev->device << 16)))
+ return -EFAULT;
+
+ max_len = hw->nvm.word_size * 2;
+
+ first_word = eeprom->offset >> 1;
+ last_word = (eeprom->offset + eeprom->len - 1) >> 1;
+ eeprom_buff = kmalloc(max_len, GFP_KERNEL);
+ if (!eeprom_buff)
+ return -ENOMEM;
+
+ ptr = (void *)eeprom_buff;
+
+ pm_runtime_get_sync((netdev_to_dev(netdev))->parent);
+
+ if (eeprom->offset & 1) {
+ /* need read/modify/write of first changed EEPROM word */
+ /* only the second byte of the word is being modified */
+ ret_val = e1000_read_nvm(hw, first_word, 1, &eeprom_buff[0]);
+ ptr++;
+ }
+ if (((eeprom->offset + eeprom->len) & 1) && (!ret_val))
+ /* need read/modify/write of last changed EEPROM word */
+ /* only the first byte of the word is being modified */
+ ret_val = e1000_read_nvm(hw, last_word, 1,
+ &eeprom_buff[last_word - first_word]);
+
+ if (ret_val)
+ goto out;
+
+ /* Device's eeprom is always little-endian, word addressable */
+ for (i = 0; i < last_word - first_word + 1; i++)
+ le16_to_cpus(&eeprom_buff[i]);
+
+ memcpy(ptr, bytes, eeprom->len);
+
+ for (i = 0; i < last_word - first_word + 1; i++)
+ cpu_to_le16s(&eeprom_buff[i]);
+
+ ret_val = e1000_write_nvm(hw, first_word,
+ last_word - first_word + 1, eeprom_buff);
+
+ if (ret_val)
+ goto out;
+
+ /* Update the checksum over the first part of the EEPROM if needed
+ * and flush shadow RAM for applicable controllers
+ */
+ if ((first_word <= NVM_CHECKSUM_REG) ||
+ (hw->mac.type == e1000_82583) ||
+ (hw->mac.type == e1000_82574) ||
+ (hw->mac.type == e1000_82573))
+ ret_val = e1000e_update_nvm_checksum(hw);
+
+out:
+ pm_runtime_put_sync(netdev->dev.parent);
+ kfree(eeprom_buff);
+ return ret_val;
+}
+
+static void e1000_get_drvinfo(struct net_device *netdev,
+ struct ethtool_drvinfo *drvinfo)
+{
+ struct e1000_adapter *adapter = netdev_priv(netdev);
+
+ strlcpy(drvinfo->driver, e1000e_driver_name, sizeof(drvinfo->driver));
+ strlcpy(drvinfo->version, e1000e_driver_version,
+ sizeof(drvinfo->version));
+
+ /* EEPROM image version # is reported as firmware version # for
+ * PCI-E controllers
+ */
+ snprintf(drvinfo->fw_version, sizeof(drvinfo->fw_version),
+ "%d.%d-%d",
+ (adapter->eeprom_vers & 0xF000) >> 12,
+ (adapter->eeprom_vers & 0x0FF0) >> 4,
+ (adapter->eeprom_vers & 0x000F));
+
+ strlcpy(drvinfo->bus_info, pci_name(adapter->pdev),
+ sizeof(drvinfo->bus_info));
+}
+
+static void e1000_get_ringparam(struct net_device *netdev,
+ struct ethtool_ringparam *ring)
+{
+ struct e1000_adapter *adapter = netdev_priv(netdev);
+
+ ring->rx_max_pending = E1000_MAX_RXD;
+ ring->tx_max_pending = E1000_MAX_TXD;
+ ring->rx_pending = adapter->rx_ring_count;
+ ring->tx_pending = adapter->tx_ring_count;
+}
+
+static int e1000_set_ringparam(struct net_device *netdev,
+ struct ethtool_ringparam *ring)
+{
+ struct e1000_adapter *adapter = netdev_priv(netdev);
+ struct e1000_ring *temp_tx = NULL, *temp_rx = NULL;
+ int err = 0, size = sizeof(struct e1000_ring);
+ bool set_tx = false, set_rx = false;
+ u16 new_rx_count, new_tx_count;
+
+ if ((ring->rx_mini_pending) || (ring->rx_jumbo_pending))
+ return -EINVAL;
+
+ new_rx_count = clamp_t(u32, ring->rx_pending, E1000_MIN_RXD,
+ E1000_MAX_RXD);
+ new_rx_count = ALIGN(new_rx_count, REQ_RX_DESCRIPTOR_MULTIPLE);
+
+ new_tx_count = clamp_t(u32, ring->tx_pending, E1000_MIN_TXD,
+ E1000_MAX_TXD);
+ new_tx_count = ALIGN(new_tx_count, REQ_TX_DESCRIPTOR_MULTIPLE);
+
+ if ((new_tx_count == adapter->tx_ring_count) &&
+ (new_rx_count == adapter->rx_ring_count))
+ /* nothing to do */
+ return 0;
+
+ while (test_and_set_bit(__E1000_RESETTING, &adapter->state))
+ usleep_range(1000, 2000);
+
+ if (!netif_running(adapter->netdev)) {
+ /* Set counts now and allocate resources during open() */
+ adapter->tx_ring->count = new_tx_count;
+ adapter->rx_ring->count = new_rx_count;
+ adapter->tx_ring_count = new_tx_count;
+ adapter->rx_ring_count = new_rx_count;
+ goto clear_reset;
+ }
+
+ set_tx = (new_tx_count != adapter->tx_ring_count);
+ set_rx = (new_rx_count != adapter->rx_ring_count);
+
+ /* Allocate temporary storage for ring updates */
+ if (set_tx) {
+ temp_tx = vmalloc(size);
+ if (!temp_tx) {
+ err = -ENOMEM;
+ goto free_temp;
+ }
+ }
+ if (set_rx) {
+ temp_rx = vmalloc(size);
+ if (!temp_rx) {
+ err = -ENOMEM;
+ goto free_temp;
+ }
+ }
+
+ pm_runtime_get_sync((netdev_to_dev(netdev))->parent);
+
+ e1000e_down(adapter, true);
+
+ /* We can't just free everything and then setup again, because the
+ * ISRs in MSI-X mode get passed pointers to the Tx and Rx ring
+ * structs. First, attempt to allocate new resources...
+ */
+ if (set_tx) {
+ memcpy(temp_tx, adapter->tx_ring, size);
+ temp_tx->count = new_tx_count;
+ err = e1000e_setup_tx_resources(temp_tx);
+ if (err)
+ goto err_setup;
+ }
+ if (set_rx) {
+ memcpy(temp_rx, adapter->rx_ring, size);
+ temp_rx->count = new_rx_count;
+ err = e1000e_setup_rx_resources(temp_rx);
+ if (err)
+ goto err_setup_rx;
+ }
+
+ /* ...then free the old resources and copy back any new ring data */
+ if (set_tx) {
+ e1000e_free_tx_resources(adapter->tx_ring);
+ memcpy(adapter->tx_ring, temp_tx, size);
+ adapter->tx_ring_count = new_tx_count;
+ }
+ if (set_rx) {
+ e1000e_free_rx_resources(adapter->rx_ring);
+ memcpy(adapter->rx_ring, temp_rx, size);
+ adapter->rx_ring_count = new_rx_count;
+ }
+
+err_setup_rx:
+ if (err && set_tx)
+ e1000e_free_tx_resources(temp_tx);
+err_setup:
+ e1000e_up(adapter);
+ pm_runtime_put_sync(netdev->dev.parent);
+free_temp:
+ vfree(temp_tx);
+ vfree(temp_rx);
+clear_reset:
+ clear_bit(__E1000_RESETTING, &adapter->state);
+ return err;
+}
+
+static bool reg_pattern_test(struct e1000_adapter *adapter, u64 *data,
+ int reg, int offset, u32 mask, u32 write)
+{
+ u32 pat, val;
+ static const u32 test[] = {
+ 0x5A5A5A5A, 0xA5A5A5A5, 0x00000000, 0xFFFFFFFF
+ };
+ for (pat = 0; pat < ARRAY_SIZE(test); pat++) {
+ E1000_WRITE_REG_ARRAY(&adapter->hw, reg, offset,
+ (test[pat] & write));
+ val = E1000_READ_REG_ARRAY(&adapter->hw, reg, offset);
+ if (val != (test[pat] & write & mask)) {
+ e_err("pattern test failed (reg 0x%05X): got 0x%08X expected 0x%08X\n",
+ reg + (offset << 2), val,
+ (test[pat] & write & mask));
+ *data = reg;
+ return true;
+ }
+ }
+ return false;
+}
+
+static bool reg_set_and_check(struct e1000_adapter *adapter, u64 *data,
+ int reg, u32 mask, u32 write)
+{
+ u32 val;
+
+ __ew32(&adapter->hw, reg, write & mask);
+ val = __er32(&adapter->hw, reg);
+ if ((write & mask) != (val & mask)) {
+ e_err("set/check test failed (reg 0x%05X): got 0x%08X expected 0x%08X\n",
+ reg, (val & mask), (write & mask));
+ *data = reg;
+ return true;
+ }
+ return false;
+}
+
+#define REG_PATTERN_TEST_ARRAY(reg, offset, mask, write) \
+ do { \
+ if (reg_pattern_test(adapter, data, reg, offset, mask, write)) \
+ return 1; \
+ } while (0)
+#define REG_PATTERN_TEST(reg, mask, write) \
+ REG_PATTERN_TEST_ARRAY(reg, 0, mask, write)
+
+#define REG_SET_AND_CHECK(reg, mask, write) \
+ do { \
+ if (reg_set_and_check(adapter, data, reg, mask, write)) \
+ return 1; \
+ } while (0)
+
+static int e1000_reg_test(struct e1000_adapter *adapter, u64 *data)
+{
+ struct e1000_hw *hw = &adapter->hw;
+ struct e1000_mac_info *mac = &adapter->hw.mac;
+ u32 value;
+ u32 before;
+ u32 after;
+ u32 i;
+ u32 toggle;
+ u32 mask;
+ u32 wlock_mac = 0;
+
+ /* The status register is Read Only, so a write should fail.
+ * Some bits that get toggled are ignored. There are several bits
+ * on newer hardware that are r/w.
+ */
+ switch (mac->type) {
+ case e1000_82571:
+ case e1000_82572:
+ case e1000_80003es2lan:
+ toggle = 0x7FFFF3FF;
+ break;
+ default:
+ toggle = 0x7FFFF033;
+ break;
+ }
+
+ before = er32(STATUS);
+ value = (er32(STATUS) & toggle);
+ ew32(STATUS, toggle);
+ after = er32(STATUS) & toggle;
+ if (value != after) {
+ e_err("failed STATUS register test got: 0x%08X expected: 0x%08X\n",
+ after, value);
+ *data = 1;
+ return 1;
+ }
+ /* restore previous status */
+ ew32(STATUS, before);
+
+ if (!(adapter->flags & FLAG_IS_ICH)) {
+ REG_PATTERN_TEST(E1000_FCAL, 0xFFFFFFFF, 0xFFFFFFFF);
+ REG_PATTERN_TEST(E1000_FCAH, 0x0000FFFF, 0xFFFFFFFF);
+ REG_PATTERN_TEST(E1000_FCT, 0x0000FFFF, 0xFFFFFFFF);
+ REG_PATTERN_TEST(E1000_VET, 0x0000FFFF, 0xFFFFFFFF);
+ }
+
+ REG_PATTERN_TEST(E1000_RDTR, 0x0000FFFF, 0xFFFFFFFF);
+ REG_PATTERN_TEST(E1000_RDBAH(0), 0xFFFFFFFF, 0xFFFFFFFF);
+ REG_PATTERN_TEST(E1000_RDLEN(0), 0x000FFF80, 0x000FFFFF);
+ REG_PATTERN_TEST(E1000_RDH(0), 0x0000FFFF, 0x0000FFFF);
+ REG_PATTERN_TEST(E1000_RDT(0), 0x0000FFFF, 0x0000FFFF);
+ REG_PATTERN_TEST(E1000_FCRTH, 0x0000FFF8, 0x0000FFF8);
+ REG_PATTERN_TEST(E1000_FCTTV, 0x0000FFFF, 0x0000FFFF);
+ REG_PATTERN_TEST(E1000_TIPG, 0x3FFFFFFF, 0x3FFFFFFF);
+ REG_PATTERN_TEST(E1000_TDBAH(0), 0xFFFFFFFF, 0xFFFFFFFF);
+ REG_PATTERN_TEST(E1000_TDLEN(0), 0x000FFF80, 0x000FFFFF);
+
+ REG_SET_AND_CHECK(E1000_RCTL, 0xFFFFFFFF, 0x00000000);
+
+ before = ((adapter->flags & FLAG_IS_ICH) ? 0x06C3B33E : 0x06DFB3FE);
+ REG_SET_AND_CHECK(E1000_RCTL, before, 0x003FFFFB);
+ REG_SET_AND_CHECK(E1000_TCTL, 0xFFFFFFFF, 0x00000000);
+
+ REG_SET_AND_CHECK(E1000_RCTL, before, 0xFFFFFFFF);
+ REG_PATTERN_TEST(E1000_RDBAL(0), 0xFFFFFFF0, 0xFFFFFFFF);
+ if (!(adapter->flags & FLAG_IS_ICH))
+ REG_PATTERN_TEST(E1000_TXCW, 0xC000FFFF, 0x0000FFFF);
+ REG_PATTERN_TEST(E1000_TDBAL(0), 0xFFFFFFF0, 0xFFFFFFFF);
+ REG_PATTERN_TEST(E1000_TIDV, 0x0000FFFF, 0x0000FFFF);
+ mask = 0x8003FFFF;
+ switch (mac->type) {
+ case e1000_ich10lan:
+ case e1000_pchlan:
+ case e1000_pch2lan:
+ case e1000_pch_lpt:
+ case e1000_pch_spt:
+ case e1000_pch_cnp:
+ /* fall through */
+ case e1000_pch_tgp:
+ case e1000_pch_adp:
+ mask |= BIT(18);
+ break;
+ default:
+ break;
+ }
+
+ if (mac->type >= e1000_pch_lpt)
+ wlock_mac = (er32(FWSM) & E1000_FWSM_WLOCK_MAC_MASK) >>
+ E1000_FWSM_WLOCK_MAC_SHIFT;
+
+ for (i = 0; i < mac->rar_entry_count; i++) {
+ if (mac->type >= e1000_pch_lpt) {
+ /* Cannot test write-protected SHRAL[n] registers */
+ if ((wlock_mac == 1) || (wlock_mac && (i > wlock_mac)))
+ continue;
+
+ /* SHRAH[9] different than the others */
+ if (i == 10)
+ mask |= BIT(30);
+ else
+ mask &= ~BIT(30);
+ }
+ if (mac->type == e1000_pch2lan) {
+ /* SHRAH[0,1,2] different than previous */
+ if (i == 1)
+ mask &= 0xFFF4FFFF;
+ /* SHRAH[3] different than SHRAH[0,1,2] */
+ if (i == 4)
+ mask |= BIT(30);
+ /* RAR[1-6] owned by management engine - skipping */
+ if (i > 0)
+ i += 6;
+ }
+
+ REG_PATTERN_TEST_ARRAY(E1000_RA, ((i << 1) + 1), mask,
+ 0xFFFFFFFF);
+ /* reset index to actual value */
+ if ((mac->type == e1000_pch2lan) && (i > 6))
+ i -= 6;
+ }
+
+ for (i = 0; i < mac->mta_reg_count; i++)
+ REG_PATTERN_TEST_ARRAY(E1000_MTA, i, 0xFFFFFFFF, 0xFFFFFFFF);
+
+ *data = 0;
+
+ return 0;
+}
+
+static int e1000_eeprom_test(struct e1000_adapter *adapter, u64 *data)
+{
+ u16 temp;
+ u16 checksum = 0;
+ u16 i;
+
+ *data = 0;
+ /* Read and add up the contents of the EEPROM */
+ for (i = 0; i < (NVM_CHECKSUM_REG + 1); i++) {
+ if ((e1000_read_nvm(&adapter->hw, i, 1, &temp)) < 0) {
+ *data = 1;
+ return *data;
+ }
+ checksum += temp;
+ }
+
+ /* If Checksum is not Correct return error else test passed */
+ if ((checksum != (u16)NVM_SUM) && !(*data))
+ *data = 2;
+
+ return *data;
+}
+
+static irqreturn_t e1000_test_intr(int __always_unused irq, void *data)
+{
+ struct net_device *netdev = (struct net_device *)data;
+ struct e1000_adapter *adapter = netdev_priv(netdev);
+ struct e1000_hw *hw = &adapter->hw;
+
+ adapter->test_icr |= er32(ICR);
+
+ return IRQ_HANDLED;
+}
+
+static int e1000_intr_test(struct e1000_adapter *adapter, u64 *data)
+{
+ struct net_device *netdev = adapter->netdev;
+ struct e1000_hw *hw = &adapter->hw;
+ u32 mask;
+ u32 shared_int = 1;
+ u32 irq = adapter->pdev->irq;
+ int i;
+ int ret_val = 0;
+ int int_mode = E1000E_INT_MODE_LEGACY;
+
+ *data = 0;
+
+ /* NOTE: we don't test MSI/MSI-X interrupts here, yet */
+ if (adapter->int_mode == E1000E_INT_MODE_MSIX) {
+ int_mode = adapter->int_mode;
+ e1000e_reset_interrupt_capability(adapter);
+ adapter->int_mode = E1000E_INT_MODE_LEGACY;
+ e1000e_set_interrupt_capability(adapter);
+ }
+ /* Hook up test interrupt handler just for this test */
+ if (!request_irq(irq, e1000_test_intr, IRQF_PROBE_SHARED, netdev->name,
+ netdev)) {
+ shared_int = 0;
+ } else if (request_irq(irq, e1000_test_intr, IRQF_SHARED, netdev->name,
+ netdev)) {
+ *data = 1;
+ ret_val = -1;
+ goto out;
+ }
+ e_info("testing %s interrupt\n", (shared_int ? "shared" : "unshared"));
+
+ /* Disable all the interrupts */
+ ew32(IMC, 0xFFFFFFFF);
+ e1e_flush();
+ usleep_range(10000, 11000);
+
+ /* Test each interrupt */
+ for (i = 0; i < 10; i++) {
+ /* Interrupt to test */
+ mask = BIT(i);
+
+ if (adapter->flags & FLAG_IS_ICH) {
+ switch (mask) {
+ case E1000_ICR_RXSEQ:
+ continue;
+ case 0x00000100:
+ if (adapter->hw.mac.type == e1000_ich8lan ||
+ adapter->hw.mac.type == e1000_ich9lan)
+ continue;
+ break;
+ default:
+ break;
+ }
+ }
+
+ if (!shared_int) {
+ /* Disable the interrupt to be reported in
+ * the cause register and then force the same
+ * interrupt and see if one gets posted. If
+ * an interrupt was posted to the bus, the
+ * test failed.
+ */
+ adapter->test_icr = 0;
+ ew32(IMC, mask);
+ ew32(ICS, mask);
+ e1e_flush();
+ usleep_range(10000, 11000);
+ if (adapter->test_icr & mask) {
+ *data = 3;
+ break;
+ }
+ }
+
+ /* Enable the interrupt to be reported in
+ * the cause register and then force the same
+ * interrupt and see if one gets posted. If
+ * an interrupt was not posted to the bus, the
+ * test failed.
+ */
+ adapter->test_icr = 0;
+ ew32(IMS, mask);
+ ew32(ICS, mask);
+ e1e_flush();
+ usleep_range(10000, 11000);
+ if (!(adapter->test_icr & mask)) {
+ *data = 4;
+ break;
+ }
+
+ if (!shared_int) {
+ /* Disable the other interrupts to be reported in
+ * the cause register and then force the other
+ * interrupts and see if any get posted. If
+ * an interrupt was posted to the bus, the
+ * test failed.
+ */
+ adapter->test_icr = 0;
+ ew32(IMC, ~mask & 0x00007FFF);
+ ew32(ICS, ~mask & 0x00007FFF);
+ e1e_flush();
+ usleep_range(10000, 11000);
+ if (adapter->test_icr) {
+ *data = 5;
+ break;
+ }
+ }
+ }
+
+ /* Disable all the interrupts */
+ ew32(IMC, 0xFFFFFFFF);
+ e1e_flush();
+ usleep_range(10000, 11000);
+
+ /* Unhook test interrupt handler */
+ free_irq(irq, netdev);
+
+out:
+ if (int_mode == E1000E_INT_MODE_MSIX) {
+ e1000e_reset_interrupt_capability(adapter);
+ adapter->int_mode = int_mode;
+ e1000e_set_interrupt_capability(adapter);
+ }
+
+ return ret_val;
+}
+
+static void e1000_free_desc_rings(struct e1000_adapter *adapter)
+{
+ struct e1000_ring *tx_ring = &adapter->test_tx_ring;
+ struct e1000_ring *rx_ring = &adapter->test_rx_ring;
+ struct pci_dev *pdev = adapter->pdev;
+ struct e1000_buffer *buffer_info;
+ int i;
+
+ if (tx_ring->desc && tx_ring->buffer_info) {
+ for (i = 0; i < tx_ring->count; i++) {
+ buffer_info = &tx_ring->buffer_info[i];
+
+ if (buffer_info->dma)
+ dma_unmap_single(pci_dev_to_dev(pdev),
+ buffer_info->dma,
+ buffer_info->length,
+ DMA_TO_DEVICE);
+ if (buffer_info->skb)
+ dev_kfree_skb(buffer_info->skb);
+ }
+ }
+
+ if (rx_ring->desc && rx_ring->buffer_info) {
+ for (i = 0; i < rx_ring->count; i++) {
+ buffer_info = &rx_ring->buffer_info[i];
+
+ if (buffer_info->dma)
+ dma_unmap_single(pci_dev_to_dev(pdev),
+ buffer_info->dma,
+ 2048, DMA_FROM_DEVICE);
+ if (buffer_info->skb)
+ dev_kfree_skb(buffer_info->skb);
+ }
+ }
+
+ if (tx_ring->desc) {
+ dma_free_coherent(pci_dev_to_dev(pdev), tx_ring->size,
+ tx_ring->desc, tx_ring->dma);
+ tx_ring->desc = NULL;
+ }
+ if (rx_ring->desc) {
+ dma_free_coherent(pci_dev_to_dev(pdev), rx_ring->size,
+ rx_ring->desc, rx_ring->dma);
+ rx_ring->desc = NULL;
+ }
+
+ kfree(tx_ring->buffer_info);
+ tx_ring->buffer_info = NULL;
+ kfree(rx_ring->buffer_info);
+ rx_ring->buffer_info = NULL;
+}
+
+static int e1000_setup_desc_rings(struct e1000_adapter *adapter)
+{
+ struct e1000_ring *tx_ring = &adapter->test_tx_ring;
+ struct e1000_ring *rx_ring = &adapter->test_rx_ring;
+ struct pci_dev *pdev = adapter->pdev;
+ struct e1000_hw *hw = &adapter->hw;
+ u32 rctl;
+ int i;
+ int ret_val;
+
+ /* Setup Tx descriptor ring and Tx buffers */
+
+ if (!tx_ring->count)
+ tx_ring->count = E1000_DEFAULT_TXD;
+
+ tx_ring->buffer_info = kcalloc(tx_ring->count,
+ sizeof(struct e1000_buffer), GFP_KERNEL);
+ if (!tx_ring->buffer_info) {
+ ret_val = 1;
+ goto err_nomem;
+ }
+
+ tx_ring->size = tx_ring->count * sizeof(struct e1000_tx_desc);
+ tx_ring->size = ALIGN(tx_ring->size, 4096);
+ tx_ring->desc = dma_alloc_coherent(pci_dev_to_dev(pdev), tx_ring->size,
+ &tx_ring->dma, GFP_KERNEL);
+ if (!tx_ring->desc) {
+ ret_val = 2;
+ goto err_nomem;
+ }
+ tx_ring->next_to_use = 0;
+ tx_ring->next_to_clean = 0;
+
+ ew32(TDBAL(0), ((u64)tx_ring->dma & 0x00000000FFFFFFFF));
+ ew32(TDBAH(0), ((u64)tx_ring->dma >> 32));
+ ew32(TDLEN(0), tx_ring->count * sizeof(struct e1000_tx_desc));
+ ew32(TDH(0), 0);
+ ew32(TDT(0), 0);
+ ew32(TCTL, E1000_TCTL_PSP | E1000_TCTL_EN | E1000_TCTL_MULR |
+ E1000_COLLISION_THRESHOLD << E1000_CT_SHIFT |
+ E1000_COLLISION_DISTANCE << E1000_COLD_SHIFT);
+
+ for (i = 0; i < tx_ring->count; i++) {
+ struct e1000_tx_desc *tx_desc = E1000_TX_DESC(*tx_ring, i);
+ struct sk_buff *skb;
+ unsigned int skb_size = 1024;
+
+ skb = alloc_skb(skb_size, GFP_KERNEL);
+ if (!skb) {
+ ret_val = 3;
+ goto err_nomem;
+ }
+ skb_put(skb, skb_size);
+ tx_ring->buffer_info[i].skb = skb;
+ tx_ring->buffer_info[i].length = skb->len;
+ tx_ring->buffer_info[i].dma =
+ dma_map_single(pci_dev_to_dev(pdev), skb->data, skb->len,
+ DMA_TO_DEVICE);
+ if (dma_mapping_error(pci_dev_to_dev(pdev),
+ tx_ring->buffer_info[i].dma)) {
+ ret_val = 4;
+ goto err_nomem;
+ }
+ tx_desc->buffer_addr = cpu_to_le64(tx_ring->buffer_info[i].dma);
+ tx_desc->lower.data = cpu_to_le32(skb->len);
+ tx_desc->lower.data |= cpu_to_le32(E1000_TXD_CMD_EOP |
+ E1000_TXD_CMD_IFCS |
+ E1000_TXD_CMD_RS);
+ tx_desc->upper.data = 0;
+ }
+
+ /* Setup Rx descriptor ring and Rx buffers */
+
+ if (!rx_ring->count)
+ rx_ring->count = E1000_DEFAULT_RXD;
+
+ rx_ring->buffer_info = kcalloc(rx_ring->count,
+ sizeof(struct e1000_buffer), GFP_KERNEL);
+ if (!rx_ring->buffer_info) {
+ ret_val = 5;
+ goto err_nomem;
+ }
+
+ rx_ring->size = rx_ring->count * sizeof(union e1000_rx_desc_extended);
+ rx_ring->desc = dma_alloc_coherent(pci_dev_to_dev(pdev), rx_ring->size,
+ &rx_ring->dma, GFP_KERNEL);
+ if (!rx_ring->desc) {
+ ret_val = 6;
+ goto err_nomem;
+ }
+ rx_ring->next_to_use = 0;
+ rx_ring->next_to_clean = 0;
+
+ rctl = er32(RCTL);
+ if (!(adapter->flags2 & FLAG2_NO_DISABLE_RX))
+ ew32(RCTL, rctl & ~E1000_RCTL_EN);
+ ew32(RDBAL(0), ((u64)rx_ring->dma & 0xFFFFFFFF));
+ ew32(RDBAH(0), ((u64)rx_ring->dma >> 32));
+ ew32(RDLEN(0), rx_ring->size);
+ ew32(RDH(0), 0);
+ ew32(RDT(0), 0);
+ rctl = E1000_RCTL_EN | E1000_RCTL_BAM | E1000_RCTL_SZ_2048 |
+ E1000_RCTL_UPE | E1000_RCTL_MPE | E1000_RCTL_LPE |
+ E1000_RCTL_SBP | E1000_RCTL_SECRC |
+ E1000_RCTL_LBM_NO | E1000_RCTL_RDMTS_HALF |
+ (adapter->hw.mac.mc_filter_type << E1000_RCTL_MO_SHIFT);
+ ew32(RCTL, rctl);
+
+ for (i = 0; i < rx_ring->count; i++) {
+ union e1000_rx_desc_extended *rx_desc;
+ struct sk_buff *skb;
+
+ skb = alloc_skb(2048 + NET_IP_ALIGN, GFP_KERNEL);
+ if (!skb) {
+ ret_val = 7;
+ goto err_nomem;
+ }
+ skb_reserve(skb, NET_IP_ALIGN);
+ rx_ring->buffer_info[i].skb = skb;
+ rx_ring->buffer_info[i].dma =
+ dma_map_single(pci_dev_to_dev(pdev), skb->data, 2048,
+ DMA_FROM_DEVICE);
+ if (dma_mapping_error(pci_dev_to_dev(pdev),
+ rx_ring->buffer_info[i].dma)) {
+ ret_val = 8;
+ goto err_nomem;
+ }
+ rx_desc = E1000_RX_DESC_EXT(*rx_ring, i);
+ rx_desc->read.buffer_addr =
+ cpu_to_le64(rx_ring->buffer_info[i].dma);
+ memset(skb->data, 0x00, skb->len);
+ }
+
+ return 0;
+
+err_nomem:
+ e1000_free_desc_rings(adapter);
+ return ret_val;
+}
+
+static void e1000_phy_disable_receiver(struct e1000_adapter *adapter)
+{
+ /* Write out to PHY registers 29 and 30 to disable the Receiver. */
+ e1e_wphy(&adapter->hw, 29, 0x001F);
+ e1e_wphy(&adapter->hw, 30, 0x8FFC);
+ e1e_wphy(&adapter->hw, 29, 0x001A);
+ e1e_wphy(&adapter->hw, 30, 0x8FF0);
+}
+
+static int e1000_integrated_phy_loopback(struct e1000_adapter *adapter)
+{
+ struct e1000_hw *hw = &adapter->hw;
+ u32 ctrl_reg = 0;
+ u16 phy_reg = 0;
+ s32 ret_val = 0;
+
+ hw->mac.autoneg = 0;
+
+ if (hw->phy.type == e1000_phy_ife) {
+ /* force 100, set loopback */
+ e1e_wphy(hw, MII_BMCR, 0x6100);
+
+ /* Now set up the MAC to the same speed/duplex as the PHY. */
+ ctrl_reg = er32(CTRL);
+ ctrl_reg &= ~E1000_CTRL_SPD_SEL; /* Clear the speed sel bits */
+ ctrl_reg |= (E1000_CTRL_FRCSPD | /* Set the Force Speed Bit */
+ E1000_CTRL_FRCDPX | /* Set the Force Duplex Bit */
+ E1000_CTRL_SPD_100 |/* Force Speed to 100 */
+ E1000_CTRL_FD); /* Force Duplex to FULL */
+
+ ew32(CTRL, ctrl_reg);
+ e1e_flush();
+ usleep_range(500, 1000);
+
+ return 0;
+ }
+
+ /* Specific PHY configuration for loopback */
+ switch (hw->phy.type) {
+ case e1000_phy_m88:
+ /* Auto-MDI/MDIX Off */
+ e1e_wphy(hw, M88E1000_PHY_SPEC_CTRL, 0x0808);
+ /* reset to update Auto-MDI/MDIX */
+ e1e_wphy(hw, MII_BMCR, 0x9140);
+ /* autoneg off */
+ e1e_wphy(hw, MII_BMCR, 0x8140);
+ break;
+ case e1000_phy_gg82563:
+ e1e_wphy(hw, GG82563_PHY_KMRN_MODE_CTRL, 0x1CC);
+ break;
+ case e1000_phy_bm:
+ /* Set Default MAC Interface speed to 1GB */
+ e1e_rphy(hw, PHY_REG(2, 21), &phy_reg);
+ phy_reg &= ~0x0007;
+ phy_reg |= 0x006;
+ e1e_wphy(hw, PHY_REG(2, 21), phy_reg);
+ /* Assert SW reset for above settings to take effect */
+ hw->phy.ops.commit(hw);
+ usleep_range(1000, 2000);
+ /* Force Full Duplex */
+ e1e_rphy(hw, PHY_REG(769, 16), &phy_reg);
+ e1e_wphy(hw, PHY_REG(769, 16), phy_reg | 0x000C);
+ /* Set Link Up (in force link) */
+ e1e_rphy(hw, PHY_REG(776, 16), &phy_reg);
+ e1e_wphy(hw, PHY_REG(776, 16), phy_reg | 0x0040);
+ /* Force Link */
+ e1e_rphy(hw, PHY_REG(769, 16), &phy_reg);
+ e1e_wphy(hw, PHY_REG(769, 16), phy_reg | 0x0040);
+ /* Set Early Link Enable */
+ e1e_rphy(hw, PHY_REG(769, 20), &phy_reg);
+ e1e_wphy(hw, PHY_REG(769, 20), phy_reg | 0x0400);
+ break;
+ case e1000_phy_82577:
+ case e1000_phy_82578:
+ /* Workaround: K1 must be disabled for stable 1Gbps operation */
+ ret_val = hw->phy.ops.acquire(hw);
+ if (ret_val) {
+ e_err("Cannot setup 1Gbps loopback.\n");
+ return ret_val;
+ }
+ e1000_configure_k1_ich8lan(hw, false);
+ hw->phy.ops.release(hw);
+ break;
+ case e1000_phy_82579:
+ /* Disable PHY energy detect power down */
+ e1e_rphy(hw, PHY_REG(0, 21), &phy_reg);
+ e1e_wphy(hw, PHY_REG(0, 21), phy_reg & ~BIT(3));
+ /* Disable full chip energy detect */
+ e1e_rphy(hw, PHY_REG(776, 18), &phy_reg);
+ e1e_wphy(hw, PHY_REG(776, 18), phy_reg | 1);
+ /* Enable loopback on the PHY */
+ e1e_wphy(hw, I82577_PHY_LBK_CTRL, 0x8001);
+ break;
+ default:
+ break;
+ }
+
+ /* force 1000, set loopback */
+ e1e_wphy(hw, MII_BMCR, 0x4140);
+ msleep(250);
+
+ /* Now set up the MAC to the same speed/duplex as the PHY. */
+ ctrl_reg = er32(CTRL);
+ ctrl_reg &= ~E1000_CTRL_SPD_SEL; /* Clear the speed sel bits */
+ ctrl_reg |= (E1000_CTRL_FRCSPD | /* Set the Force Speed Bit */
+ E1000_CTRL_FRCDPX | /* Set the Force Duplex Bit */
+ E1000_CTRL_SPD_1000 |/* Force Speed to 1000 */
+ E1000_CTRL_FD); /* Force Duplex to FULL */
+
+ if (adapter->flags & FLAG_IS_ICH)
+ ctrl_reg |= E1000_CTRL_SLU; /* Set Link Up */
+
+ if (hw->phy.media_type == e1000_media_type_copper &&
+ hw->phy.type == e1000_phy_m88) {
+ ctrl_reg |= E1000_CTRL_ILOS; /* Invert Loss of Signal */
+ } else {
+ /* Set the ILOS bit on the fiber Nic if half duplex link is
+ * detected.
+ */
+ if ((er32(STATUS) & E1000_STATUS_FD) == 0)
+ ctrl_reg |= (E1000_CTRL_ILOS | E1000_CTRL_SLU);
+ }
+
+ ew32(CTRL, ctrl_reg);
+
+ /* Disable the receiver on the PHY so when a cable is plugged in, the
+ * PHY does not begin to autoneg when a cable is reconnected to the NIC.
+ */
+ if (hw->phy.type == e1000_phy_m88)
+ e1000_phy_disable_receiver(adapter);
+
+ usleep_range(500, 1000);
+
+ return 0;
+}
+
+static int e1000_set_82571_fiber_loopback(struct e1000_adapter *adapter)
+{
+ struct e1000_hw *hw = &adapter->hw;
+ u32 ctrl = er32(CTRL);
+ int link;
+
+ /* special requirements for 82571/82572 fiber adapters */
+
+ /* jump through hoops to make sure link is up because serdes
+ * link is hardwired up
+ */
+ ctrl |= E1000_CTRL_SLU;
+ ew32(CTRL, ctrl);
+
+ /* disable autoneg */
+ ctrl = er32(TXCW);
+ ctrl &= ~BIT(31);
+ ew32(TXCW, ctrl);
+
+ link = (er32(STATUS) & E1000_STATUS_LU);
+
+ if (!link) {
+ /* set invert loss of signal */
+ ctrl = er32(CTRL);
+ ctrl |= E1000_CTRL_ILOS;
+ ew32(CTRL, ctrl);
+ }
+
+ /* special write to serdes control register to enable SerDes analog
+ * loopback
+ */
+ ew32(SCTL, E1000_SCTL_ENABLE_SERDES_LOOPBACK);
+ e1e_flush();
+ usleep_range(10000, 11000);
+
+ return 0;
+}
+
+/* only call this for fiber/serdes connections to es2lan */
+static int e1000_set_es2lan_mac_loopback(struct e1000_adapter *adapter)
+{
+ struct e1000_hw *hw = &adapter->hw;
+ u32 ctrlext = er32(CTRL_EXT);
+ u32 ctrl = er32(CTRL);
+
+ /* save CTRL_EXT to restore later, reuse an empty variable (unused
+ * on mac_type 80003es2lan)
+ */
+ adapter->tx_fifo_head = ctrlext;
+
+ /* clear the serdes mode bits, putting the device into mac loopback */
+ ctrlext &= ~E1000_CTRL_EXT_LINK_MODE_PCIE_SERDES;
+ ew32(CTRL_EXT, ctrlext);
+
+ /* force speed to 1000/FD, link up */
+ ctrl &= ~(E1000_CTRL_SPD_1000 | E1000_CTRL_SPD_100);
+ ctrl |= (E1000_CTRL_SLU | E1000_CTRL_FRCSPD | E1000_CTRL_FRCDPX |
+ E1000_CTRL_SPD_1000 | E1000_CTRL_FD);
+ ew32(CTRL, ctrl);
+
+ /* set mac loopback */
+ ctrl = er32(RCTL);
+ ctrl |= E1000_RCTL_LBM_MAC;
+ ew32(RCTL, ctrl);
+
+ /* set testing mode parameters (no need to reset later) */
+#define KMRNCTRLSTA_OPMODE (0x1F << 16)
+#define KMRNCTRLSTA_OPMODE_1GB_FD_GMII 0x0582
+ ew32(KMRNCTRLSTA,
+ (KMRNCTRLSTA_OPMODE | KMRNCTRLSTA_OPMODE_1GB_FD_GMII));
+
+ return 0;
+}
+
+static int e1000_setup_loopback_test(struct e1000_adapter *adapter)
+{
+ struct e1000_hw *hw = &adapter->hw;
+ u32 rctl, fext_nvm11, tarc0;
+
+ if (hw->mac.type >= e1000_pch_spt) {
+ fext_nvm11 = er32(FEXTNVM11);
+ fext_nvm11 |= E1000_FEXTNVM11_DISABLE_MULR_FIX;
+ ew32(FEXTNVM11, fext_nvm11);
+ tarc0 = er32(TARC(0));
+ /* clear bits 28 & 29 (control of MULR concurrent requests) */
+ tarc0 &= 0xcfffffff;
+ /* set bit 29 (value of MULR requests is now 2) */
+ tarc0 |= 0x20000000;
+ ew32(TARC(0), tarc0);
+ }
+ if (hw->phy.media_type == e1000_media_type_fiber ||
+ hw->phy.media_type == e1000_media_type_internal_serdes) {
+ switch (hw->mac.type) {
+ case e1000_80003es2lan:
+ return e1000_set_es2lan_mac_loopback(adapter);
+ case e1000_82571:
+ case e1000_82572:
+ return e1000_set_82571_fiber_loopback(adapter);
+ default:
+ rctl = er32(RCTL);
+ rctl |= E1000_RCTL_LBM_TCVR;
+ ew32(RCTL, rctl);
+ return 0;
+ }
+ } else if (hw->phy.media_type == e1000_media_type_copper) {
+ return e1000_integrated_phy_loopback(adapter);
+ }
+
+ return 7;
+}
+
+static void e1000_loopback_cleanup(struct e1000_adapter *adapter)
+{
+ struct e1000_hw *hw = &adapter->hw;
+ u32 rctl, fext_nvm11, tarc0;
+ u16 phy_reg;
+
+ rctl = er32(RCTL);
+ rctl &= ~(E1000_RCTL_LBM_TCVR | E1000_RCTL_LBM_MAC);
+ ew32(RCTL, rctl);
+
+ switch (hw->mac.type) {
+ case e1000_pch_spt:
+ case e1000_pch_cnp:
+ case e1000_pch_tgp:
+ case e1000_pch_adp:
+ fext_nvm11 = er32(FEXTNVM11);
+ fext_nvm11 &= ~E1000_FEXTNVM11_DISABLE_MULR_FIX;
+ ew32(FEXTNVM11, fext_nvm11);
+ tarc0 = er32(TARC(0));
+ /* clear bits 28 & 29 (control of MULR concurrent requests) */
+ /* set bit 29 (value of MULR requests is now 0) */
+ tarc0 &= 0xcfffffff;
+ ew32(TARC(0), tarc0);
+ /* fall through */
+ case e1000_80003es2lan:
+ if (hw->phy.media_type == e1000_media_type_fiber ||
+ hw->phy.media_type == e1000_media_type_internal_serdes) {
+ /* restore CTRL_EXT, stealing space from tx_fifo_head */
+ ew32(CTRL_EXT, adapter->tx_fifo_head);
+ adapter->tx_fifo_head = 0;
+ }
+ /* fall through */
+ case e1000_82571:
+ case e1000_82572:
+ if (hw->phy.media_type == e1000_media_type_fiber ||
+ hw->phy.media_type == e1000_media_type_internal_serdes) {
+ ew32(SCTL, E1000_SCTL_DISABLE_SERDES_LOOPBACK);
+ e1e_flush();
+ usleep_range(10000, 11000);
+ break;
+ }
+ /* Fall Through */
+ default:
+ hw->mac.autoneg = 1;
+ if (hw->phy.type == e1000_phy_gg82563)
+ e1e_wphy(hw, GG82563_PHY_KMRN_MODE_CTRL, 0x180);
+ e1e_rphy(hw, MII_BMCR, &phy_reg);
+ if (phy_reg & BMCR_LOOPBACK) {
+ phy_reg &= ~BMCR_LOOPBACK;
+ e1e_wphy(hw, MII_BMCR, phy_reg);
+ if (hw->phy.ops.commit)
+ hw->phy.ops.commit(hw);
+ }
+ break;
+ }
+}
+
+static void e1000_create_lbtest_frame(struct sk_buff *skb,
+ unsigned int frame_size)
+{
+ memset(skb->data, 0xFF, frame_size);
+ frame_size &= ~1;
+ memset(&skb->data[frame_size / 2], 0xAA, frame_size / 2 - 1);
+ memset(&skb->data[frame_size / 2 + 10], 0xBE, 1);
+ memset(&skb->data[frame_size / 2 + 12], 0xAF, 1);
+}
+
+static int e1000_check_lbtest_frame(struct sk_buff *skb,
+ unsigned int frame_size)
+{
+ frame_size &= ~1;
+ if (*(skb->data + 3) == 0xFF)
+ if ((*(skb->data + frame_size / 2 + 10) == 0xBE) &&
+ (*(skb->data + frame_size / 2 + 12) == 0xAF))
+ return 0;
+ return 13;
+}
+
+static int e1000_run_loopback_test(struct e1000_adapter *adapter)
+{
+ struct e1000_ring *tx_ring = &adapter->test_tx_ring;
+ struct e1000_ring *rx_ring = &adapter->test_rx_ring;
+ struct pci_dev *pdev = adapter->pdev;
+ struct e1000_hw *hw = &adapter->hw;
+ struct e1000_buffer *buffer_info;
+ int i, j, k, l;
+ int lc;
+ int good_cnt;
+ int ret_val = 0;
+ unsigned long time;
+
+ ew32(RDT(0), rx_ring->count - 1);
+
+ /* Calculate the loop count based on the largest descriptor ring
+ * The idea is to wrap the largest ring a number of times using 64
+ * send/receive pairs during each loop
+ */
+
+ if (rx_ring->count <= tx_ring->count)
+ lc = ((tx_ring->count / 64) * 2) + 1;
+ else
+ lc = ((rx_ring->count / 64) * 2) + 1;
+
+ k = 0;
+ l = 0;
+ /* loop count loop */
+ for (j = 0; j <= lc; j++) {
+ /* send the packets */
+ for (i = 0; i < 64; i++) {
+ buffer_info = &tx_ring->buffer_info[k];
+
+ e1000_create_lbtest_frame(buffer_info->skb, 1024);
+ dma_sync_single_for_device(pci_dev_to_dev(pdev),
+ buffer_info->dma,
+ buffer_info->length,
+ DMA_TO_DEVICE);
+ k++;
+ if (k == tx_ring->count)
+ k = 0;
+ }
+ ew32(TDT(0), k);
+ e1e_flush();
+ msleep(200);
+ time = jiffies; /* set the start time for the receive */
+ good_cnt = 0;
+ /* receive the sent packets */
+ do {
+ buffer_info = &rx_ring->buffer_info[l];
+
+ dma_sync_single_for_cpu(pci_dev_to_dev(pdev),
+ buffer_info->dma, 2048,
+ DMA_FROM_DEVICE);
+
+ ret_val = e1000_check_lbtest_frame(buffer_info->skb,
+ 1024);
+ if (!ret_val)
+ good_cnt++;
+ l++;
+ if (l == rx_ring->count)
+ l = 0;
+ /* time + 20 msecs (200 msecs on 2.4) is more than
+ * enough time to complete the receives, if it's
+ * exceeded, break and error off
+ */
+ } while ((good_cnt < 64) && !time_after(jiffies, time + 20));
+ if (good_cnt != 64) {
+ ret_val = 13; /* ret_val is the same as mis-compare */
+ break;
+ }
+ if (time_after(jiffies, time + 20)) {
+ ret_val = 14; /* error code for time out error */
+ break;
+ }
+ }
+ return ret_val;
+}
+
+static int e1000_loopback_test(struct e1000_adapter *adapter, u64 *data)
+{
+ struct e1000_hw *hw = &adapter->hw;
+
+ /* PHY loopback cannot be performed if SoL/IDER sessions are active */
+ if (hw->phy.ops.check_reset_block &&
+ hw->phy.ops.check_reset_block(hw)) {
+ e_err("Cannot do PHY loopback test when SoL/IDER is active.\n");
+ *data = 0;
+ goto out;
+ }
+
+ *data = e1000_setup_desc_rings(adapter);
+ if (*data)
+ goto out;
+
+ *data = e1000_setup_loopback_test(adapter);
+ if (*data)
+ goto err_loopback;
+
+ *data = e1000_run_loopback_test(adapter);
+ e1000_loopback_cleanup(adapter);
+
+err_loopback:
+ e1000_free_desc_rings(adapter);
+out:
+ return *data;
+}
+
+static int e1000_link_test(struct e1000_adapter *adapter, u64 *data)
+{
+ struct e1000_hw *hw = &adapter->hw;
+
+ *data = 0;
+ if (hw->phy.media_type == e1000_media_type_internal_serdes) {
+ int i = 0;
+
+ hw->mac.serdes_has_link = false;
+
+ /* On some blade server designs, link establishment
+ * could take as long as 2-3 minutes
+ */
+ do {
+ hw->mac.ops.check_for_link(hw);
+ if (hw->mac.serdes_has_link)
+ return *data;
+ msleep(20);
+ } while (i++ < 3750);
+
+ *data = 1;
+ } else {
+ hw->mac.ops.check_for_link(hw);
+ if (hw->mac.autoneg)
+ /* On some Phy/switch combinations, link establishment
+ * can take a few seconds more than expected.
+ */
+ msleep_interruptible(5000);
+
+ if (!(er32(STATUS) & E1000_STATUS_LU))
+ *data = 1;
+ }
+ return *data;
+}
+
+#ifdef HAVE_ETHTOOL_GET_SSET_COUNT
+static int e1000e_get_sset_count(struct net_device __always_unused *netdev,
+ int sset)
+{
+ switch (sset) {
+ case ETH_SS_TEST:
+ return E1000_TEST_LEN;
+ case ETH_SS_STATS:
+ return E1000_STATS_LEN;
+ default:
+ return -EOPNOTSUPP;
+ }
+}
+#else
+static int e1000_get_self_test_count(struct net_device __always_unused *netdev)
+{
+ return E1000_TEST_LEN;
+}
+
+static int e1000_get_stats_count(struct net_device __always_unused *netdev)
+{
+ return E1000_STATS_LEN;
+}
+#endif
+
+static void e1000_diag_test(struct net_device *netdev,
+ struct ethtool_test *eth_test, u64 *data)
+{
+ struct e1000_adapter *adapter = netdev_priv(netdev);
+ u16 autoneg_advertised;
+ u8 forced_speed_duplex;
+ u8 autoneg;
+ bool if_running = netif_running(netdev);
+
+ pm_runtime_get_sync((netdev_to_dev(netdev))->parent);
+
+ set_bit(__E1000_TESTING, &adapter->state);
+
+ if (!if_running) {
+ /* Get control of and reset hardware */
+ if (adapter->flags & FLAG_HAS_AMT)
+ e1000e_get_hw_control(adapter);
+
+ e1000e_power_up_phy(adapter);
+
+ adapter->hw.phy.autoneg_wait_to_complete = 1;
+ e1000e_reset(adapter);
+ adapter->hw.phy.autoneg_wait_to_complete = 0;
+ }
+
+ if (eth_test->flags == ETH_TEST_FL_OFFLINE) {
+ /* Offline tests */
+
+ /* save speed, duplex, autoneg settings */
+ autoneg_advertised = adapter->hw.phy.autoneg_advertised;
+ forced_speed_duplex = adapter->hw.mac.forced_speed_duplex;
+ autoneg = adapter->hw.mac.autoneg;
+
+ e_info("offline testing starting\n");
+
+ if (if_running)
+ /* indicate we're in test mode */
+ e1000e_close(netdev);
+
+ if (e1000_reg_test(adapter, &data[0]))
+ eth_test->flags |= ETH_TEST_FL_FAILED;
+
+ e1000e_reset(adapter);
+ if (e1000_eeprom_test(adapter, &data[1]))
+ eth_test->flags |= ETH_TEST_FL_FAILED;
+
+ e1000e_reset(adapter);
+ if (e1000_intr_test(adapter, &data[2]))
+ eth_test->flags |= ETH_TEST_FL_FAILED;
+
+ e1000e_reset(adapter);
+ if (e1000_loopback_test(adapter, &data[3]))
+ eth_test->flags |= ETH_TEST_FL_FAILED;
+
+ /* force this routine to wait until autoneg complete/timeout */
+ adapter->hw.phy.autoneg_wait_to_complete = 1;
+ e1000e_reset(adapter);
+ adapter->hw.phy.autoneg_wait_to_complete = 0;
+
+ if (e1000_link_test(adapter, &data[4]))
+ eth_test->flags |= ETH_TEST_FL_FAILED;
+
+ /* restore speed, duplex, autoneg settings */
+ adapter->hw.phy.autoneg_advertised = autoneg_advertised;
+ adapter->hw.mac.forced_speed_duplex = forced_speed_duplex;
+ adapter->hw.mac.autoneg = autoneg;
+ e1000e_reset(adapter);
+
+ clear_bit(__E1000_TESTING, &adapter->state);
+ if (if_running)
+ e1000e_open(netdev);
+ } else {
+ /* Online tests */
+
+ e_info("online testing starting\n");
+
+ /* register, eeprom, intr and loopback tests not run online */
+ data[0] = 0;
+ data[1] = 0;
+ data[2] = 0;
+ data[3] = 0;
+
+ if (e1000_link_test(adapter, &data[4]))
+ eth_test->flags |= ETH_TEST_FL_FAILED;
+
+ clear_bit(__E1000_TESTING, &adapter->state);
+ }
+
+ if (!if_running) {
+ e1000e_reset(adapter);
+
+ if (adapter->flags & FLAG_HAS_AMT)
+ e1000e_release_hw_control(adapter);
+ }
+
+ msleep_interruptible(4 * 1000);
+
+ pm_runtime_put_sync(netdev->dev.parent);
+}
+
+static void e1000_get_wol(struct net_device *netdev,
+ struct ethtool_wolinfo *wol)
+{
+ struct e1000_adapter *adapter = netdev_priv(netdev);
+
+ wol->supported = 0;
+ wol->wolopts = 0;
+
+ if (!(adapter->flags & FLAG_HAS_WOL) ||
+ !device_can_wakeup(pci_dev_to_dev(adapter->pdev)))
+ return;
+
+ wol->supported = WAKE_UCAST | WAKE_MCAST |
+ WAKE_BCAST | WAKE_MAGIC | WAKE_PHY;
+
+ /* apply any specific unsupported masks here */
+ if (adapter->flags & FLAG_NO_WAKE_UCAST) {
+ wol->supported &= ~WAKE_UCAST;
+
+ if (adapter->wol & E1000_WUFC_EX)
+ e_err("Interface does not support directed (unicast) frame wake-up packets\n");
+ }
+
+ if (adapter->wol & E1000_WUFC_EX)
+ wol->wolopts |= WAKE_UCAST;
+ if (adapter->wol & E1000_WUFC_MC)
+ wol->wolopts |= WAKE_MCAST;
+ if (adapter->wol & E1000_WUFC_BC)
+ wol->wolopts |= WAKE_BCAST;
+ if (adapter->wol & E1000_WUFC_MAG)
+ wol->wolopts |= WAKE_MAGIC;
+ if (adapter->wol & E1000_WUFC_LNKC)
+ wol->wolopts |= WAKE_PHY;
+}
+
+static int e1000_set_wol(struct net_device *netdev, struct ethtool_wolinfo *wol)
+{
+ struct e1000_adapter *adapter = netdev_priv(netdev);
+
+ if (!(adapter->flags & FLAG_HAS_WOL) ||
+ !device_can_wakeup(pci_dev_to_dev(adapter->pdev)) ||
+ (wol->wolopts & ~(WAKE_UCAST | WAKE_MCAST | WAKE_BCAST |
+ WAKE_MAGIC | WAKE_PHY)))
+ return -EOPNOTSUPP;
+
+ /* these settings will always override what we currently have */
+ adapter->wol = 0;
+
+ if (wol->wolopts & WAKE_UCAST)
+ adapter->wol |= E1000_WUFC_EX;
+ if (wol->wolopts & WAKE_MCAST)
+ adapter->wol |= E1000_WUFC_MC;
+ if (wol->wolopts & WAKE_BCAST)
+ adapter->wol |= E1000_WUFC_BC;
+ if (wol->wolopts & WAKE_MAGIC)
+ adapter->wol |= E1000_WUFC_MAG;
+ if (wol->wolopts & WAKE_PHY)
+ adapter->wol |= E1000_WUFC_LNKC;
+
+ device_set_wakeup_enable(pci_dev_to_dev(adapter->pdev), adapter->wol);
+
+ return 0;
+}
+
+#ifdef HAVE_ETHTOOL_SET_PHYS_ID
+static int e1000_set_phys_id(struct net_device *netdev,
+ enum ethtool_phys_id_state state)
+{
+ struct e1000_adapter *adapter = netdev_priv(netdev);
+ struct e1000_hw *hw = &adapter->hw;
+
+ switch (state) {
+ case ETHTOOL_ID_ACTIVE:
+ pm_runtime_get_sync((netdev_to_dev(netdev))->parent);
+
+ if (!hw->mac.ops.blink_led)
+ return 2; /* cycle on/off twice per second */
+
+ hw->mac.ops.blink_led(hw);
+ break;
+
+ case ETHTOOL_ID_INACTIVE:
+ if (hw->phy.type == e1000_phy_ife)
+ e1e_wphy(hw, IFE_PHY_SPECIAL_CONTROL_LED, 0);
+ hw->mac.ops.led_off(hw);
+ hw->mac.ops.cleanup_led(hw);
+ pm_runtime_put_sync(netdev->dev.parent);
+ break;
+
+ case ETHTOOL_ID_ON:
+ hw->mac.ops.led_on(hw);
+ break;
+
+ case ETHTOOL_ID_OFF:
+ hw->mac.ops.led_off(hw);
+ break;
+ }
+
+ return 0;
+}
+#else /* HAVE_ETHTOOL_SET_PHYS_ID */
+/* toggle LED 4 times per second = 2 "blinks" per second */
+#define E1000_ID_INTERVAL (HZ/4)
+
+/* bit defines for adapter->led_status */
+#define E1000_LED_ON 0
+
+void e1000e_led_blink_task(struct work_struct *work)
+{
+ struct e1000_adapter *adapter = container_of(work,
+ struct e1000_adapter,
+ led_blink_task);
+
+ if (test_and_change_bit(E1000_LED_ON, &adapter->led_status))
+ adapter->hw.mac.ops.led_off(&adapter->hw);
+ else
+ adapter->hw.mac.ops.led_on(&adapter->hw);
+}
+
+static void e1000_led_blink_callback(unsigned long data)
+{
+ struct e1000_adapter *adapter = (struct e1000_adapter *)data;
+
+ schedule_work(&adapter->led_blink_task);
+ mod_timer(&adapter->blink_timer, jiffies + E1000_ID_INTERVAL);
+}
+
+static int e1000_phys_id(struct net_device *netdev, u32 data)
+{
+ struct e1000_adapter *adapter = netdev_priv(netdev);
+ struct e1000_hw *hw = &adapter->hw;
+
+ if (!data)
+ data = INT_MAX;
+
+ if ((hw->phy.type == e1000_phy_ife) ||
+ (hw->mac.type == e1000_pchlan) ||
+ (hw->mac.type == e1000_pch2lan) ||
+ (hw->mac.type == e1000_pch_lpt) ||
+ (hw->mac.type == e1000_pch_spt) ||
+ (hw->mac.type == e1000_pch_cnp) ||
+ (hw->mac.type == e1000_pch_tgp) ||
+ (hw->mac.type == e1000_pch_adp) ||
+ (hw->mac.type == e1000_82583) || (hw->mac.type == e1000_82574)) {
+ if (!adapter->blink_timer.function) {
+ init_timer(&adapter->blink_timer);
+ adapter->blink_timer.function =
+ e1000_led_blink_callback;
+ adapter->blink_timer.data = (unsigned long)adapter;
+ }
+ mod_timer(&adapter->blink_timer, jiffies);
+ msleep_interruptible(data * 1000);
+ del_timer_sync(&adapter->blink_timer);
+ if (hw->phy.type == e1000_phy_ife)
+ e1e_wphy(hw, IFE_PHY_SPECIAL_CONTROL_LED, 0);
+ } else {
+ e1000e_blink_led_generic(hw);
+ msleep_interruptible(data * 1000);
+ }
+
+ hw->mac.ops.led_off(hw);
+ clear_bit(E1000_LED_ON, &adapter->led_status);
+ hw->mac.ops.cleanup_led(hw);
+
+ return 0;
+}
+#endif /* HAVE_ETHTOOL_SET_PHYS_ID */
+
+static int e1000_get_coalesce(struct net_device *netdev,
+ struct ethtool_coalesce *ec)
+{
+ struct e1000_adapter *adapter = netdev_priv(netdev);
+
+ if (adapter->itr_setting <= 4)
+ ec->rx_coalesce_usecs = adapter->itr_setting;
+ else
+ ec->rx_coalesce_usecs = 1000000 / adapter->itr_setting;
+
+ return 0;
+}
+
+static int e1000_set_coalesce(struct net_device *netdev,
+ struct ethtool_coalesce *ec)
+{
+ struct e1000_adapter *adapter = netdev_priv(netdev);
+
+ if ((ec->rx_coalesce_usecs > E1000_MAX_ITR_USECS) ||
+ ((ec->rx_coalesce_usecs > 4) &&
+ (ec->rx_coalesce_usecs < E1000_MIN_ITR_USECS)) ||
+ (ec->rx_coalesce_usecs == 2))
+ return -EINVAL;
+
+ if (ec->rx_coalesce_usecs == 4) {
+ adapter->itr_setting = 4;
+ adapter->itr = adapter->itr_setting;
+ } else if (ec->rx_coalesce_usecs <= 3) {
+ adapter->itr = 20000;
+ adapter->itr_setting = ec->rx_coalesce_usecs;
+ } else {
+ adapter->itr = (1000000 / ec->rx_coalesce_usecs);
+ adapter->itr_setting = adapter->itr & ~3;
+ }
+
+ pm_runtime_get_sync((netdev_to_dev(netdev))->parent);
+
+ if (adapter->itr_setting != 0)
+ e1000e_write_itr(adapter, adapter->itr);
+ else
+ e1000e_write_itr(adapter, 0);
+
+ pm_runtime_put_sync(netdev->dev.parent);
+
+ return 0;
+}
+
+static int e1000_nway_reset(struct net_device *netdev)
+{
+ struct e1000_adapter *adapter = netdev_priv(netdev);
+
+ if (!netif_running(netdev))
+ return -EAGAIN;
+
+ if (!adapter->hw.mac.autoneg)
+ return -EINVAL;
+
+ pm_runtime_get_sync((netdev_to_dev(netdev))->parent);
+ e1000e_reinit_locked(adapter);
+ pm_runtime_put_sync(netdev->dev.parent);
+
+ return 0;
+}
+
+static void e1000_get_ethtool_stats(struct net_device *netdev,
+ struct ethtool_stats __always_unused *stats,
+ u64 *data)
+{
+ struct e1000_adapter *adapter = netdev_priv(netdev);
+#ifdef HAVE_NDO_GET_STATS64
+ struct rtnl_link_stats64 net_stats;
+#endif
+ int i;
+ char *p = NULL;
+
+ pm_runtime_get_sync((netdev_to_dev(netdev))->parent);
+
+#ifdef HAVE_NDO_GET_STATS64
+ dev_get_stats(netdev, &net_stats);
+#else
+ e1000e_update_stats(adapter);
+#endif
+
+ pm_runtime_put_sync(netdev->dev.parent);
+
+ for (i = 0; i < E1000_GLOBAL_STATS_LEN; i++) {
+ switch (e1000_gstrings_stats[i].type) {
+ case NETDEV_STATS:
+#ifdef HAVE_NDO_GET_STATS64
+ p = (char *)&net_stats +
+#else
+ p = (char *)netdev +
+#endif
+ e1000_gstrings_stats[i].stat_offset;
+ break;
+ case E1000_STATS:
+ p = (char *)adapter +
+ e1000_gstrings_stats[i].stat_offset;
+ break;
+ default:
+ data[i] = 0;
+ continue;
+ }
+
+ data[i] = (e1000_gstrings_stats[i].sizeof_stat ==
+ sizeof(u64)) ? *(u64 *)p : *(u32 *)p;
+ }
+}
+
+static void e1000_get_strings(struct net_device __always_unused *netdev,
+ u32 stringset, u8 *data)
+{
+ u8 *p = data;
+ int i;
+
+ switch (stringset) {
+ case ETH_SS_TEST:
+ memcpy(data, e1000_gstrings_test, sizeof(e1000_gstrings_test));
+ break;
+ case ETH_SS_STATS:
+ for (i = 0; i < E1000_GLOBAL_STATS_LEN; i++) {
+ memcpy(p, e1000_gstrings_stats[i].stat_string,
+ ETH_GSTRING_LEN);
+ p += ETH_GSTRING_LEN;
+ }
+ break;
+ }
+}
+
+#ifdef ETHTOOL_GRXRINGS
+#ifdef HAVE_ETHTOOL_GET_RXNFC_VOID_RULE_LOCS
+static int e1000_get_rxnfc(struct net_device *netdev,
+ struct ethtool_rxnfc *info,
+ void __always_unused *rule_locs)
+#else
+static int e1000_get_rxnfc(struct net_device *netdev,
+ struct ethtool_rxnfc *info,
+ u32 __always_unused *rule_locs)
+#endif
+{
+ info->data = 0;
+
+ switch (info->cmd) {
+ case ETHTOOL_GRXFH: {
+ struct e1000_adapter *adapter = netdev_priv(netdev);
+ struct e1000_hw *hw = &adapter->hw;
+ u32 mrqc;
+
+ pm_runtime_get_sync((netdev_to_dev(netdev))->parent);
+ mrqc = er32(MRQC);
+ pm_runtime_put_sync(netdev->dev.parent);
+
+ if (!(mrqc & E1000_MRQC_RSS_FIELD_MASK))
+ return 0;
+
+ switch (info->flow_type) {
+ case TCP_V4_FLOW:
+ if (mrqc & E1000_MRQC_RSS_FIELD_IPV4_TCP)
+ info->data |= RXH_L4_B_0_1 | RXH_L4_B_2_3;
+ /* fall through */
+ case UDP_V4_FLOW:
+ case SCTP_V4_FLOW:
+ case AH_ESP_V4_FLOW:
+ case IPV4_FLOW:
+ if (mrqc & E1000_MRQC_RSS_FIELD_IPV4)
+ info->data |= RXH_IP_SRC | RXH_IP_DST;
+ break;
+ case TCP_V6_FLOW:
+ if (mrqc & E1000_MRQC_RSS_FIELD_IPV6_TCP)
+ info->data |= RXH_L4_B_0_1 | RXH_L4_B_2_3;
+ /* fall through */
+ case UDP_V6_FLOW:
+ case SCTP_V6_FLOW:
+ case AH_ESP_V6_FLOW:
+ case IPV6_FLOW:
+ if (mrqc & E1000_MRQC_RSS_FIELD_IPV6)
+ info->data |= RXH_IP_SRC | RXH_IP_DST;
+ break;
+ default:
+ break;
+ }
+ return 0;
+ }
+ default:
+ return -EOPNOTSUPP;
+ }
+}
+#endif /* ETHTOOL_GRXRINGS */
+
+#ifdef ETHTOOL_GEEE
+static int e1000e_get_eee(struct net_device *netdev, struct ethtool_eee *edata)
+{
+ struct e1000_adapter *adapter = netdev_priv(netdev);
+ struct e1000_hw *hw = &adapter->hw;
+ u16 cap_addr, lpa_addr, pcs_stat_addr, phy_data;
+ u32 ret_val;
+
+ if (!(adapter->flags2 & FLAG2_HAS_EEE))
+ return -EOPNOTSUPP;
+
+ switch (hw->phy.type) {
+ case e1000_phy_82579:
+ cap_addr = I82579_EEE_CAPABILITY;
+ lpa_addr = I82579_EEE_LP_ABILITY;
+ pcs_stat_addr = I82579_EEE_PCS_STATUS;
+ break;
+ case e1000_phy_i217:
+ cap_addr = I217_EEE_CAPABILITY;
+ lpa_addr = I217_EEE_LP_ABILITY;
+ pcs_stat_addr = I217_EEE_PCS_STATUS;
+ break;
+ default:
+ return -EOPNOTSUPP;
+ }
+
+ pm_runtime_get_sync((netdev_to_dev(netdev))->parent);
+
+ ret_val = hw->phy.ops.acquire(hw);
+ if (ret_val) {
+ pm_runtime_put_sync(netdev->dev.parent);
+ return -EBUSY;
+ }
+
+ /* EEE Capability */
+ ret_val = e1000_read_emi_reg_locked(hw, cap_addr, &phy_data);
+ if (ret_val)
+ goto release;
+ edata->supported = mmd_eee_cap_to_ethtool_sup_t(phy_data);
+
+ /* EEE Advertised */
+ edata->advertised = mmd_eee_adv_to_ethtool_adv_t(adapter->eee_advert);
+
+ /* EEE Link Partner Advertised */
+ ret_val = e1000_read_emi_reg_locked(hw, lpa_addr, &phy_data);
+ if (ret_val)
+ goto release;
+ edata->lp_advertised = mmd_eee_adv_to_ethtool_adv_t(phy_data);
+
+ /* EEE PCS Status */
+ ret_val = e1000_read_emi_reg_locked(hw, pcs_stat_addr, &phy_data);
+ if (ret_val)
+ goto release;
+ if (hw->phy.type == e1000_phy_82579)
+ phy_data <<= 8;
+
+ /* Result of the EEE auto negotiation - there is no register that
+ * has the status of the EEE negotiation so do a best-guess based
+ * on whether Tx or Rx LPI indications have been received.
+ */
+ if (phy_data & (E1000_EEE_TX_LPI_RCVD | E1000_EEE_RX_LPI_RCVD))
+ edata->eee_active = true;
+
+ edata->eee_enabled = !hw->dev_spec.ich8lan.eee_disable;
+ edata->tx_lpi_enabled = true;
+ edata->tx_lpi_timer = er32(LPIC) >> E1000_LPIC_LPIET_SHIFT;
+
+release:
+ hw->phy.ops.release(hw);
+ if (ret_val)
+ ret_val = -ENODATA;
+
+ pm_runtime_put_sync(netdev->dev.parent);
+
+ return ret_val;
+}
+#endif /* ETHTOOL_GEEE */
+
+#ifdef ETHTOOL_SEEE
+static int e1000e_set_eee(struct net_device *netdev, struct ethtool_eee *edata)
+{
+ struct e1000_adapter *adapter = netdev_priv(netdev);
+ struct e1000_hw *hw = &adapter->hw;
+ struct ethtool_eee eee_curr;
+ s32 ret_val;
+
+ ret_val = e1000e_get_eee(netdev, &eee_curr);
+ if (ret_val)
+ return ret_val;
+
+ if (eee_curr.tx_lpi_enabled != edata->tx_lpi_enabled) {
+ e_err("Setting EEE tx-lpi is not supported\n");
+ return -EINVAL;
+ }
+
+ if (eee_curr.tx_lpi_timer != edata->tx_lpi_timer) {
+ e_err("Setting EEE Tx LPI timer is not supported\n");
+ return -EINVAL;
+ }
+
+ if (edata->advertised & ~(ADVERTISE_100_FULL | ADVERTISE_1000_FULL)) {
+ e_err("EEE advertisement supports only 100TX and/or 1000T full-duplex\n");
+ return -EINVAL;
+ }
+
+ adapter->eee_advert = ethtool_adv_to_mmd_eee_adv_t(edata->advertised);
+
+ hw->dev_spec.ich8lan.eee_disable = !edata->eee_enabled;
+
+ pm_runtime_get_sync((netdev_to_dev(netdev))->parent);
+
+ /* reset the link */
+ if (netif_running(netdev))
+ e1000e_reinit_locked(adapter);
+ else
+ e1000e_reset(adapter);
+
+ pm_runtime_put_sync(netdev->dev.parent);
+
+ return 0;
+}
+#endif /* ETHTOOL_SEEE */
+
+#ifdef ETHTOOL_GET_TS_INFO
+static int e1000e_get_ts_info(struct net_device *netdev,
+ struct ethtool_ts_info *info)
+{
+ struct e1000_adapter *adapter = netdev_priv(netdev);
+
+ ethtool_op_get_ts_info(netdev, info);
+
+ if (!(adapter->flags & FLAG_HAS_HW_TIMESTAMP))
+ return 0;
+
+#ifdef HAVE_HW_TIME_STAMP
+ info->so_timestamping |= (SOF_TIMESTAMPING_TX_HARDWARE |
+ SOF_TIMESTAMPING_RX_HARDWARE |
+ SOF_TIMESTAMPING_RAW_HARDWARE);
+
+ info->tx_types = BIT(HWTSTAMP_TX_OFF) | BIT(HWTSTAMP_TX_ON);
+
+ info->rx_filters = (BIT(HWTSTAMP_FILTER_NONE) |
+#ifdef HAVE_PTP_1588_CLOCK
+ BIT(HWTSTAMP_FILTER_PTP_V1_L4_SYNC) |
+ BIT(HWTSTAMP_FILTER_PTP_V1_L4_DELAY_REQ) |
+ BIT(HWTSTAMP_FILTER_PTP_V2_L4_SYNC) |
+ BIT(HWTSTAMP_FILTER_PTP_V2_L4_DELAY_REQ) |
+ BIT(HWTSTAMP_FILTER_PTP_V2_L2_SYNC) |
+ BIT(HWTSTAMP_FILTER_PTP_V2_L2_DELAY_REQ) |
+ BIT(HWTSTAMP_FILTER_PTP_V2_EVENT) |
+ BIT(HWTSTAMP_FILTER_PTP_V2_SYNC) |
+ BIT(HWTSTAMP_FILTER_PTP_V2_DELAY_REQ) |
+#endif
+ BIT(HWTSTAMP_FILTER_ALL));
+
+#ifdef HAVE_PTP_1588_CLOCK
+ if (adapter->ptp_clock)
+ info->phc_index = ptp_clock_index(adapter->ptp_clock);
+#endif /* HAVE_PTP_1588_CLOCK */
+#endif /* HAVE_HW_TIME_STAMP */
+
+ return 0;
+}
+#endif /* ETHTOOL_GET_TS_INFO */
+
+static const struct ethtool_ops e1000_ethtool_ops = {
+#ifdef ETHTOOL_COALESCE_USECS
+ .supported_coalesce_params = ETHTOOL_COALESCE_USECS,
+#endif /* ETHTOOL_COALESCE_USECS */
+#ifndef HAVE_ETHTOOL_CONVERT_U32_AND_LINK_MODE
+ .get_settings = e1000_get_settings,
+ .set_settings = e1000_set_settings,
+#endif /* HAVE_ETHTOOL_CONVERT_U32_AND_LINK_MODE */
+ .get_drvinfo = e1000_get_drvinfo,
+ .get_regs_len = e1000_get_regs_len,
+ .get_regs = e1000_get_regs,
+ .get_wol = e1000_get_wol,
+ .set_wol = e1000_set_wol,
+ .get_msglevel = e1000_get_msglevel,
+ .set_msglevel = e1000_set_msglevel,
+ .nway_reset = e1000_nway_reset,
+ .get_link = ethtool_op_get_link,
+ .get_eeprom_len = e1000_get_eeprom_len,
+ .get_eeprom = e1000_get_eeprom,
+ .set_eeprom = e1000_set_eeprom,
+ .get_ringparam = e1000_get_ringparam,
+ .set_ringparam = e1000_set_ringparam,
+ .get_pauseparam = e1000_get_pauseparam,
+ .set_pauseparam = e1000_set_pauseparam,
+#ifndef HAVE_NDO_SET_FEATURES
+ .get_rx_csum = e1000_get_rx_csum,
+ .set_rx_csum = e1000_set_rx_csum,
+ .get_tx_csum = e1000_get_tx_csum,
+ .set_tx_csum = e1000_set_tx_csum,
+ .get_sg = ethtool_op_get_sg,
+ .set_sg = ethtool_op_set_sg,
+#ifdef NETIF_F_TSO
+ .get_tso = ethtool_op_get_tso,
+ .set_tso = e1000_set_tso,
+#endif
+#ifdef ETHTOOL_GFLAGS
+ .get_flags = ethtool_op_get_flags,
+#endif
+#if defined(ETHTOOL_SFLAGS) && (defined(NETIF_F_RXHASH) || !defined(HAVE_VLAN_RX_REGISTER))
+ .set_flags = e1000e_set_flags,
+#endif
+#endif /* HAVE_NDO_SET_FEATURES */
+ .self_test = e1000_diag_test,
+ .get_strings = e1000_get_strings,
+#ifdef HAVE_ETHTOOL_SET_PHYS_ID
+#ifndef HAVE_RHEL6_ETHTOOL_OPS_EXT_STRUCT
+ .set_phys_id = e1000_set_phys_id,
+#endif /* !HAVE_RHEL6_ETHTOOL_OPS_EXT_STRUCT */
+#else
+ .phys_id = e1000_phys_id,
+#endif
+ .get_ethtool_stats = e1000_get_ethtool_stats,
+#ifdef HAVE_ETHTOOL_GET_SSET_COUNT
+ .get_sset_count = e1000e_get_sset_count,
+#else
+ .self_test_count = e1000_get_self_test_count,
+ .get_stats_count = e1000_get_stats_count,
+#endif
+#ifdef HAVE_ETHTOOL_GET_PERM_ADDR
+ .get_perm_addr = ethtool_op_get_perm_addr,
+#endif
+ .get_coalesce = e1000_get_coalesce,
+ .set_coalesce = e1000_set_coalesce,
+#ifdef ETHTOOL_GRXRINGS
+ .get_rxnfc = e1000_get_rxnfc,
+#endif
+#ifndef HAVE_RHEL6_ETHTOOL_OPS_EXT_STRUCT
+#ifdef ETHTOOL_GET_TS_INFO
+ .get_ts_info = e1000e_get_ts_info,
+#endif
+#ifdef ETHTOOL_GEEE
+ .get_eee = e1000e_get_eee,
+#endif
+#ifdef ETHTOOL_SEEE
+ .set_eee = e1000e_set_eee,
+#endif
+#endif /* !HAVE_RHEL6_ETHTOOL_OPS_EXT_STRUCT */
+#ifdef HAVE_ETHTOOL_CONVERT_U32_AND_LINK_MODE
+ .get_link_ksettings = e1000_get_link_ksettings,
+ .set_link_ksettings = e1000_set_link_ksettings,
+#endif /* HAVE_ETHTOOL_CONVERT_U32_AND_LINK_MODE */
+};
+
+#ifdef HAVE_RHEL6_ETHTOOL_OPS_EXT_STRUCT
+static const struct ethtool_ops_ext e1000e_ethtool_ops_ext = {
+ .size = sizeof(struct ethtool_ops_ext),
+ .set_phys_id = e1000_set_phys_id,
+ .get_ts_info = e1000e_get_ts_info,
+ .get_eee = e1000e_get_eee,
+ .set_eee = e1000e_set_eee,
+};
+
+#endif /* HAVE_RHEL6_ETHTOOL_OPS_EXT_STRUCT */
+void e1000e_set_ethtool_ops(struct net_device *netdev)
+{
+ /* have to "undeclare" const on this struct to remove warnings */
+ netdev->ethtool_ops = (struct ethtool_ops *)&e1000_ethtool_ops;
+#ifdef HAVE_RHEL6_ETHTOOL_OPS_EXT_STRUCT
+ set_ethtool_ops_ext(netdev, &e1000e_ethtool_ops_ext);
+#endif /* HAVE_RHEL6_ETHTOOL_OPS_EXT_STRUCT */
+}
+#endif /* SIOCETHTOOL */
diff --git a/src/hw.h b/src/hw.h
new file mode 100644
index 0000000..ec6014b
--- /dev/null
+++ b/src/hw.h
@@ -0,0 +1,755 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/* Copyright(c) 1999 - 2020 Intel Corporation. */
+
+#ifndef _E1000E_HW_H_
+#define _E1000E_HW_H_
+
+#include "regs.h"
+#include "defines.h"
+
+struct e1000_hw;
+
+#define E1000_DEV_ID_82571EB_COPPER 0x105E
+#define E1000_DEV_ID_82571EB_FIBER 0x105F
+#define E1000_DEV_ID_82571EB_SERDES 0x1060
+#define E1000_DEV_ID_82571EB_QUAD_COPPER 0x10A4
+#define E1000_DEV_ID_82571PT_QUAD_COPPER 0x10D5
+#define E1000_DEV_ID_82571EB_QUAD_FIBER 0x10A5
+#define E1000_DEV_ID_82571EB_QUAD_COPPER_LP 0x10BC
+#define E1000_DEV_ID_82571EB_SERDES_DUAL 0x10D9
+#define E1000_DEV_ID_82571EB_SERDES_QUAD 0x10DA
+#define E1000_DEV_ID_82572EI_COPPER 0x107D
+#define E1000_DEV_ID_82572EI_FIBER 0x107E
+#define E1000_DEV_ID_82572EI_SERDES 0x107F
+#define E1000_DEV_ID_82572EI 0x10B9
+#define E1000_DEV_ID_82573E 0x108B
+#define E1000_DEV_ID_82573E_IAMT 0x108C
+#define E1000_DEV_ID_82573L 0x109A
+#define E1000_DEV_ID_82574L 0x10D3
+#define E1000_DEV_ID_82574LA 0x10F6
+#define E1000_DEV_ID_82583V 0x150C
+#define E1000_DEV_ID_80003ES2LAN_COPPER_DPT 0x1096
+#define E1000_DEV_ID_80003ES2LAN_SERDES_DPT 0x1098
+#define E1000_DEV_ID_80003ES2LAN_COPPER_SPT 0x10BA
+#define E1000_DEV_ID_80003ES2LAN_SERDES_SPT 0x10BB
+#define E1000_DEV_ID_ICH8_82567V_3 0x1501
+#define E1000_DEV_ID_ICH8_IGP_M_AMT 0x1049
+#define E1000_DEV_ID_ICH8_IGP_AMT 0x104A
+#define E1000_DEV_ID_ICH8_IGP_C 0x104B
+#define E1000_DEV_ID_ICH8_IFE 0x104C
+#define E1000_DEV_ID_ICH8_IFE_GT 0x10C4
+#define E1000_DEV_ID_ICH8_IFE_G 0x10C5
+#define E1000_DEV_ID_ICH8_IGP_M 0x104D
+#define E1000_DEV_ID_ICH9_IGP_AMT 0x10BD
+#define E1000_DEV_ID_ICH9_BM 0x10E5
+#define E1000_DEV_ID_ICH9_IGP_M_AMT 0x10F5
+#define E1000_DEV_ID_ICH9_IGP_M 0x10BF
+#define E1000_DEV_ID_ICH9_IGP_M_V 0x10CB
+#define E1000_DEV_ID_ICH9_IGP_C 0x294C
+#define E1000_DEV_ID_ICH9_IFE 0x10C0
+#define E1000_DEV_ID_ICH9_IFE_GT 0x10C3
+#define E1000_DEV_ID_ICH9_IFE_G 0x10C2
+#define E1000_DEV_ID_ICH10_R_BM_LM 0x10CC
+#define E1000_DEV_ID_ICH10_R_BM_LF 0x10CD
+#define E1000_DEV_ID_ICH10_R_BM_V 0x10CE
+#define E1000_DEV_ID_ICH10_D_BM_LM 0x10DE
+#define E1000_DEV_ID_ICH10_D_BM_LF 0x10DF
+#define E1000_DEV_ID_ICH10_D_BM_V 0x1525
+#define E1000_DEV_ID_PCH_M_HV_LM 0x10EA
+#define E1000_DEV_ID_PCH_M_HV_LC 0x10EB
+#define E1000_DEV_ID_PCH_D_HV_DM 0x10EF
+#define E1000_DEV_ID_PCH_D_HV_DC 0x10F0
+#define E1000_DEV_ID_PCH2_LV_LM 0x1502
+#define E1000_DEV_ID_PCH2_LV_V 0x1503
+#define E1000_DEV_ID_PCH_LPT_I217_LM 0x153A
+#define E1000_DEV_ID_PCH_LPT_I217_V 0x153B
+#define E1000_DEV_ID_PCH_LPTLP_I218_LM 0x155A
+#define E1000_DEV_ID_PCH_LPTLP_I218_V 0x1559
+#define E1000_DEV_ID_PCH_I218_LM2 0x15A0
+#define E1000_DEV_ID_PCH_I218_V2 0x15A1
+#define E1000_DEV_ID_PCH_I218_LM3 0x15A2 /* Wildcat Point PCH */
+#define E1000_DEV_ID_PCH_I218_V3 0x15A3 /* Wildcat Point PCH */
+#define E1000_DEV_ID_PCH_SPT_I219_LM 0x156F /* Sunrise Point PCH */
+#define E1000_DEV_ID_PCH_SPT_I219_V 0x1570 /* Sunrise Point PCH */
+#define E1000_DEV_ID_PCH_SPT_I219_LM2 0x15B7 /* Sunrise Point-H PCH */
+#define E1000_DEV_ID_PCH_SPT_I219_V2 0x15B8 /* Sunrise Point-H PCH */
+#define E1000_DEV_ID_PCH_LBG_I219_LM3 0x15B9 /* LEWISBURG PCH */
+#define E1000_DEV_ID_PCH_SPT_I219_LM4 0x15D7
+#define E1000_DEV_ID_PCH_SPT_I219_V4 0x15D8
+#define E1000_DEV_ID_PCH_SPT_I219_LM5 0x15E3
+#define E1000_DEV_ID_PCH_SPT_I219_V5 0x15D6
+#define E1000_DEV_ID_PCH_CNP_I219_LM6 0x15BD
+#define E1000_DEV_ID_PCH_CNP_I219_V6 0x15BE
+#define E1000_DEV_ID_PCH_CNP_I219_LM7 0x15BB
+#define E1000_DEV_ID_PCH_CNP_I219_V7 0x15BC
+#define E1000_DEV_ID_PCH_ICP_I219_LM8 0x15DF
+#define E1000_DEV_ID_PCH_ICP_I219_V8 0x15E0
+#define E1000_DEV_ID_PCH_ICP_I219_LM9 0x15E1
+#define E1000_DEV_ID_PCH_ICP_I219_V9 0x15E2
+#define E1000_DEV_ID_PCH_CMP_I219_LM10 0x0D4E
+#define E1000_DEV_ID_PCH_CMP_I219_V10 0x0D4F
+#define E1000_DEV_ID_PCH_CMP_I219_LM11 0x0D4C
+#define E1000_DEV_ID_PCH_CMP_I219_V11 0x0D4D
+#define E1000_DEV_ID_PCH_CMP_I219_LM12 0x0D53
+#define E1000_DEV_ID_PCH_CMP_I219_V12 0x0D55
+#define E1000_DEV_ID_PCH_TGP_I219_LM13 0x15FB
+#define E1000_DEV_ID_PCH_TGP_I219_V13 0x15FC
+#define E1000_DEV_ID_PCH_TGP_I219_LM14 0x15F9
+#define E1000_DEV_ID_PCH_TGP_I219_V14 0x15FA
+#define E1000_DEV_ID_PCH_TGP_I219_LM15 0x15F4
+#define E1000_DEV_ID_PCH_TGP_I219_V15 0x15F5
+#define E1000_DEV_ID_PCH_ADL_I219_LM16 0x1A1E
+#define E1000_DEV_ID_PCH_ADL_I219_V16 0x1A1F
+#define E1000_DEV_ID_PCH_ADL_I219_LM17 0x1A1C
+#define E1000_DEV_ID_PCH_ADL_I219_V17 0x1A1D
+
+#define E1000_REVISION_4 4
+
+#define E1000_FUNC_1 1
+
+#define E1000_ALT_MAC_ADDRESS_OFFSET_LAN0 0
+#define E1000_ALT_MAC_ADDRESS_OFFSET_LAN1 3
+
+enum e1000_mac_type {
+ e1000_82571,
+ e1000_82572,
+ e1000_82573,
+ e1000_82574,
+ e1000_82583,
+ e1000_80003es2lan,
+ e1000_ich8lan,
+ e1000_ich9lan,
+ e1000_ich10lan,
+ e1000_pchlan,
+ e1000_pch2lan,
+ e1000_pch_lpt,
+ e1000_pch_spt,
+ e1000_pch_cnp,
+ e1000_pch_tgp,
+ e1000_pch_adp,
+};
+
+enum e1000_media_type {
+ e1000_media_type_unknown = 0,
+ e1000_media_type_copper = 1,
+ e1000_media_type_fiber = 2,
+ e1000_media_type_internal_serdes = 3,
+ e1000_num_media_types
+};
+
+enum e1000_nvm_type {
+ e1000_nvm_unknown = 0,
+ e1000_nvm_none,
+ e1000_nvm_eeprom_spi,
+ e1000_nvm_flash_hw,
+ e1000_nvm_flash_sw
+};
+
+enum e1000_nvm_override {
+ e1000_nvm_override_none = 0,
+ e1000_nvm_override_spi_small,
+ e1000_nvm_override_spi_large
+};
+
+enum e1000_phy_type {
+ e1000_phy_unknown = 0,
+ e1000_phy_none,
+ e1000_phy_m88,
+ e1000_phy_igp,
+ e1000_phy_igp_2,
+ e1000_phy_gg82563,
+ e1000_phy_igp_3,
+ e1000_phy_ife,
+ e1000_phy_bm,
+ e1000_phy_82578,
+ e1000_phy_82577,
+ e1000_phy_82579,
+ e1000_phy_i217,
+};
+
+enum e1000_bus_type {
+ e1000_bus_type_unknown = 0,
+ e1000_bus_type_pci,
+ e1000_bus_type_pcix,
+ e1000_bus_type_pci_express,
+ e1000_bus_type_reserved
+};
+
+enum e1000_bus_speed {
+ e1000_bus_speed_unknown = 0,
+ e1000_bus_speed_33,
+ e1000_bus_speed_66,
+ e1000_bus_speed_100,
+ e1000_bus_speed_120,
+ e1000_bus_speed_133,
+ e1000_bus_speed_2500,
+ e1000_bus_speed_5000,
+ e1000_bus_speed_reserved
+};
+
+enum e1000_bus_width {
+ e1000_bus_width_unknown = 0,
+ e1000_bus_width_pcie_x1,
+ e1000_bus_width_pcie_x2,
+ e1000_bus_width_pcie_x4 = 4,
+ e1000_bus_width_pcie_x8 = 8,
+ e1000_bus_width_32,
+ e1000_bus_width_64,
+ e1000_bus_width_reserved
+};
+
+enum e1000_1000t_rx_status {
+ e1000_1000t_rx_status_not_ok = 0,
+ e1000_1000t_rx_status_ok,
+ e1000_1000t_rx_status_undefined = 0xFF
+};
+
+enum e1000_rev_polarity {
+ e1000_rev_polarity_normal = 0,
+ e1000_rev_polarity_reversed,
+ e1000_rev_polarity_undefined = 0xFF
+};
+
+enum e1000_fc_mode {
+ e1000_fc_none = 0,
+ e1000_fc_rx_pause,
+ e1000_fc_tx_pause,
+ e1000_fc_full,
+ e1000_fc_default = 0xFF
+};
+
+enum e1000_ms_type {
+ e1000_ms_hw_default = 0,
+ e1000_ms_force_master,
+ e1000_ms_force_slave,
+ e1000_ms_auto
+};
+
+enum e1000_smart_speed {
+ e1000_smart_speed_default = 0,
+ e1000_smart_speed_on,
+ e1000_smart_speed_off
+};
+
+enum e1000_serdes_link_state {
+ e1000_serdes_link_down = 0,
+ e1000_serdes_link_autoneg_progress,
+ e1000_serdes_link_autoneg_complete,
+ e1000_serdes_link_forced_up
+};
+
+#ifndef __le16
+#define __le16 u16
+#endif
+#ifndef __le32
+#define __le32 u32
+#endif
+#ifndef __le64
+#define __le64 u64
+#endif
+/* Receive Descriptor - Extended */
+union e1000_rx_desc_extended {
+ struct {
+ __le64 buffer_addr;
+ __le64 reserved;
+ } read;
+ struct {
+ struct {
+ __le32 mrq; /* Multiple Rx Queues */
+ union {
+ __le32 rss; /* RSS Hash */
+ struct {
+ __le16 ip_id; /* IP id */
+ __le16 csum; /* Packet Checksum */
+ } csum_ip;
+ } hi_dword;
+ } lower;
+ struct {
+ __le32 status_error; /* ext status/error */
+ __le16 length;
+ __le16 vlan; /* VLAN tag */
+ } upper;
+ } wb; /* writeback */
+};
+
+#define MAX_PS_BUFFERS 4
+
+/* Number of packet split data buffers (not including the header buffer) */
+#define PS_PAGE_BUFFERS (MAX_PS_BUFFERS - 1)
+
+/* Receive Descriptor - Packet Split */
+union e1000_rx_desc_packet_split {
+ struct {
+ /* one buffer for protocol header(s), three data buffers */
+ __le64 buffer_addr[MAX_PS_BUFFERS];
+ } read;
+ struct {
+ struct {
+ __le32 mrq; /* Multiple Rx Queues */
+ union {
+ __le32 rss; /* RSS Hash */
+ struct {
+ __le16 ip_id; /* IP id */
+ __le16 csum; /* Packet Checksum */
+ } csum_ip;
+ } hi_dword;
+ } lower;
+ struct {
+ __le32 status_error; /* ext status/error */
+ __le16 length0; /* length of buffer 0 */
+ __le16 vlan; /* VLAN tag */
+ } middle;
+ struct {
+ __le16 header_status;
+ /* length of buffers 1-3 */
+ __le16 length[PS_PAGE_BUFFERS];
+ } upper;
+ __le64 reserved;
+ } wb; /* writeback */
+};
+
+/* Transmit Descriptor */
+struct e1000_tx_desc {
+ __le64 buffer_addr; /* Address of the descriptor's data buffer */
+ union {
+ __le32 data;
+ struct {
+ __le16 length; /* Data buffer length */
+ u8 cso; /* Checksum offset */
+ u8 cmd; /* Descriptor control */
+ } flags;
+ } lower;
+ union {
+ __le32 data;
+ struct {
+ u8 status; /* Descriptor status */
+ u8 css; /* Checksum start */
+ __le16 special;
+ } fields;
+ } upper;
+};
+
+/* Offload Context Descriptor */
+struct e1000_context_desc {
+ union {
+ __le32 ip_config;
+ struct {
+ u8 ipcss; /* IP checksum start */
+ u8 ipcso; /* IP checksum offset */
+ __le16 ipcse; /* IP checksum end */
+ } ip_fields;
+ } lower_setup;
+ union {
+ __le32 tcp_config;
+ struct {
+ u8 tucss; /* TCP checksum start */
+ u8 tucso; /* TCP checksum offset */
+ __le16 tucse; /* TCP checksum end */
+ } tcp_fields;
+ } upper_setup;
+ __le32 cmd_and_length;
+ union {
+ __le32 data;
+ struct {
+ u8 status; /* Descriptor status */
+ u8 hdr_len; /* Header length */
+ __le16 mss; /* Maximum segment size */
+ } fields;
+ } tcp_seg_setup;
+};
+
+/* Offload data descriptor */
+struct e1000_data_desc {
+ __le64 buffer_addr; /* Address of the descriptor's buffer address */
+ union {
+ __le32 data;
+ struct {
+ __le16 length; /* Data buffer length */
+ u8 typ_len_ext;
+ u8 cmd;
+ } flags;
+ } lower;
+ union {
+ __le32 data;
+ struct {
+ u8 status; /* Descriptor status */
+ u8 popts; /* Packet Options */
+ __le16 special;
+ } fields;
+ } upper;
+};
+
+/* Statistics counters collected by the MAC */
+struct e1000_hw_stats {
+ u64 crcerrs;
+ u64 algnerrc;
+ u64 symerrs;
+ u64 rxerrc;
+ u64 mpc;
+ u64 scc;
+ u64 ecol;
+ u64 mcc;
+ u64 latecol;
+ u64 colc;
+ u64 dc;
+ u64 tncrs;
+ u64 sec;
+ u64 cexterr;
+ u64 rlec;
+ u64 xonrxc;
+ u64 xontxc;
+ u64 xoffrxc;
+ u64 xofftxc;
+ u64 fcruc;
+ u64 prc64;
+ u64 prc127;
+ u64 prc255;
+ u64 prc511;
+ u64 prc1023;
+ u64 prc1522;
+ u64 gprc;
+ u64 bprc;
+ u64 mprc;
+ u64 gptc;
+ u64 gorc;
+ u64 gotc;
+ u64 rnbc;
+ u64 ruc;
+ u64 rfc;
+ u64 roc;
+ u64 rjc;
+ u64 mgprc;
+ u64 mgpdc;
+ u64 mgptc;
+ u64 tor;
+ u64 tot;
+ u64 tpr;
+ u64 tpt;
+ u64 ptc64;
+ u64 ptc127;
+ u64 ptc255;
+ u64 ptc511;
+ u64 ptc1023;
+ u64 ptc1522;
+ u64 mptc;
+ u64 bptc;
+ u64 tsctc;
+ u64 tsctfc;
+ u64 iac;
+ u64 icrxptc;
+ u64 icrxatc;
+ u64 ictxptc;
+ u64 ictxatc;
+ u64 ictxqec;
+ u64 ictxqmtc;
+ u64 icrxdmtc;
+ u64 icrxoc;
+};
+
+struct e1000_phy_stats {
+ u32 idle_errors;
+ u32 receive_errors;
+};
+
+struct e1000_host_mng_dhcp_cookie {
+ u32 signature;
+ u8 status;
+ u8 reserved0;
+ u16 vlan_id;
+ u32 reserved1;
+ u16 reserved2;
+ u8 reserved3;
+ u8 checksum;
+};
+
+/* Host Interface "Rev 1" */
+struct e1000_host_command_header {
+ u8 command_id;
+ u8 command_length;
+ u8 command_options;
+ u8 checksum;
+};
+
+#define E1000_HI_MAX_DATA_LENGTH 252
+struct e1000_host_command_info {
+ struct e1000_host_command_header command_header;
+ u8 command_data[E1000_HI_MAX_DATA_LENGTH];
+};
+
+/* Host Interface "Rev 2" */
+struct e1000_host_mng_command_header {
+ u8 command_id;
+ u8 checksum;
+ u16 reserved1;
+ u16 reserved2;
+ u16 command_length;
+};
+
+#define E1000_HI_MAX_MNG_DATA_LENGTH 0x6F8
+struct e1000_host_mng_command_info {
+ struct e1000_host_mng_command_header command_header;
+ u8 command_data[E1000_HI_MAX_MNG_DATA_LENGTH];
+};
+
+#include "mac.h"
+#include "phy.h"
+#include "nvm.h"
+#include "manage.h"
+
+/* Function pointers for the MAC. */
+struct e1000_mac_operations {
+ s32 (*id_led_init) (struct e1000_hw *);
+ s32 (*blink_led) (struct e1000_hw *);
+ bool (*check_mng_mode) (struct e1000_hw *);
+ s32 (*check_for_link) (struct e1000_hw *);
+ s32 (*cleanup_led) (struct e1000_hw *);
+ void (*clear_hw_cntrs) (struct e1000_hw *);
+ void (*clear_vfta) (struct e1000_hw *);
+ s32 (*get_bus_info) (struct e1000_hw *);
+ void (*set_lan_id) (struct e1000_hw *);
+ s32 (*get_link_up_info) (struct e1000_hw *, u16 *, u16 *);
+ s32 (*led_on) (struct e1000_hw *);
+ s32 (*led_off) (struct e1000_hw *);
+ void (*update_mc_addr_list) (struct e1000_hw *, u8 *, u32);
+ s32 (*reset_hw) (struct e1000_hw *);
+ s32 (*init_hw) (struct e1000_hw *);
+ s32 (*setup_link) (struct e1000_hw *);
+ s32 (*setup_physical_interface) (struct e1000_hw *);
+ s32 (*setup_led) (struct e1000_hw *);
+ void (*write_vfta) (struct e1000_hw *, u32, u32);
+ void (*config_collision_dist) (struct e1000_hw *);
+ int (*rar_set) (struct e1000_hw *, u8 *, u32);
+ u32 (*rar_get_count) (struct e1000_hw *);
+ s32 (*read_mac_addr) (struct e1000_hw *);
+ s32 (*validate_mdi_setting) (struct e1000_hw *);
+};
+
+/* When to use various PHY register access functions:
+ *
+ * Func Caller
+ * Function Does Does When to use
+ * ~~~~~~~~~~~~ ~~~~~ ~~~~~~ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+ * X_reg L,P,A n/a for simple PHY reg accesses
+ * X_reg_locked P,A L for multiple accesses of different regs
+ * on different pages
+ * X_reg_page A L,P for multiple accesses of different regs
+ * on the same page
+ *
+ * Where X=[read|write], L=locking, P=sets page, A=register access
+ *
+ */
+struct e1000_phy_operations {
+ s32 (*acquire) (struct e1000_hw *);
+ s32 (*cfg_on_link_up) (struct e1000_hw *);
+ s32 (*check_polarity) (struct e1000_hw *);
+ s32 (*check_reset_block) (struct e1000_hw *);
+ s32 (*commit) (struct e1000_hw *);
+ s32 (*force_speed_duplex) (struct e1000_hw *);
+ s32 (*get_cfg_done) (struct e1000_hw *hw);
+ s32 (*get_cable_length) (struct e1000_hw *);
+ s32 (*get_info) (struct e1000_hw *);
+ s32 (*set_page) (struct e1000_hw *, u16);
+ s32 (*read_reg) (struct e1000_hw *, u32, u16 *);
+ s32 (*read_reg_locked) (struct e1000_hw *, u32, u16 *);
+ s32 (*read_reg_page) (struct e1000_hw *, u32, u16 *);
+ void (*release) (struct e1000_hw *);
+ s32 (*reset) (struct e1000_hw *);
+ s32 (*set_d0_lplu_state) (struct e1000_hw *, bool);
+ s32 (*set_d3_lplu_state) (struct e1000_hw *, bool);
+ s32 (*write_reg) (struct e1000_hw *, u32, u16);
+ s32 (*write_reg_locked) (struct e1000_hw *, u32, u16);
+ s32 (*write_reg_page) (struct e1000_hw *, u32, u16);
+ void (*power_up) (struct e1000_hw *);
+ void (*power_down) (struct e1000_hw *);
+};
+
+/* Function pointers for the NVM. */
+struct e1000_nvm_operations {
+ s32 (*acquire) (struct e1000_hw *);
+ s32 (*read) (struct e1000_hw *, u16, u16, u16 *);
+ void (*release) (struct e1000_hw *);
+ void (*reload) (struct e1000_hw *);
+ s32 (*update) (struct e1000_hw *);
+ s32 (*valid_led_default) (struct e1000_hw *, u16 *);
+ s32 (*validate) (struct e1000_hw *);
+ s32 (*write) (struct e1000_hw *, u16, u16, u16 *);
+};
+
+struct e1000_mac_info {
+ struct e1000_mac_operations ops;
+ u8 addr[ETH_ALEN];
+ u8 perm_addr[ETH_ALEN];
+
+ enum e1000_mac_type type;
+
+ u32 collision_delta;
+ u32 ledctl_default;
+ u32 ledctl_mode1;
+ u32 ledctl_mode2;
+ u32 mc_filter_type;
+ u32 tx_packet_delta;
+ u32 txcw;
+
+ u16 current_ifs_val;
+ u16 ifs_max_val;
+ u16 ifs_min_val;
+ u16 ifs_ratio;
+ u16 ifs_step_size;
+ u16 mta_reg_count;
+
+ /* Maximum size of the MTA register table in all supported adapters */
+#define MAX_MTA_REG 128
+ u32 mta_shadow[MAX_MTA_REG];
+ u16 rar_entry_count;
+
+ u8 forced_speed_duplex;
+
+ bool adaptive_ifs;
+ bool has_fwsm;
+ bool arc_subsystem_valid;
+ bool autoneg;
+ bool autoneg_failed;
+ bool get_link_status;
+ bool in_ifs_mode;
+ bool serdes_has_link;
+ bool tx_pkt_filtering;
+ enum e1000_serdes_link_state serdes_link_state;
+};
+
+struct e1000_phy_info {
+ struct e1000_phy_operations ops;
+
+ enum e1000_phy_type type;
+
+ enum e1000_1000t_rx_status local_rx;
+ enum e1000_1000t_rx_status remote_rx;
+ enum e1000_ms_type ms_type;
+ enum e1000_ms_type original_ms_type;
+ enum e1000_rev_polarity cable_polarity;
+ enum e1000_smart_speed smart_speed;
+
+ u32 addr;
+ u32 id;
+ u32 reset_delay_us; /* in usec */
+ u32 revision;
+
+ enum e1000_media_type media_type;
+
+ u16 autoneg_advertised;
+ u16 autoneg_mask;
+ u16 cable_length;
+ u16 max_cable_length;
+ u16 min_cable_length;
+
+ u8 mdix;
+
+ bool disable_polarity_correction;
+ bool is_mdix;
+ bool polarity_correction;
+ bool speed_downgraded;
+ bool autoneg_wait_to_complete;
+};
+
+struct e1000_nvm_info {
+ struct e1000_nvm_operations ops;
+
+ enum e1000_nvm_type type;
+ enum e1000_nvm_override override;
+
+ u32 flash_bank_size;
+ u32 flash_base_addr;
+
+ u16 word_size;
+ u16 delay_usec;
+ u16 address_bits;
+ u16 opcode_bits;
+ u16 page_size;
+};
+
+struct e1000_bus_info {
+ enum e1000_bus_type type;
+ enum e1000_bus_speed speed;
+ enum e1000_bus_width width;
+
+ u16 func;
+};
+
+struct e1000_fc_info {
+ u32 high_water; /* Flow control high-water mark */
+ u32 low_water; /* Flow control low-water mark */
+ u16 pause_time; /* Flow control pause timer */
+ u16 refresh_time; /* Flow control refresh timer */
+ bool send_xon; /* Flow control send XON */
+ bool strict_ieee; /* Strict IEEE mode */
+ enum e1000_fc_mode current_mode; /* FC mode in effect */
+ enum e1000_fc_mode requested_mode; /* FC mode requested by caller */
+};
+
+struct e1000_dev_spec_82571 {
+ bool laa_is_present;
+ u32 smb_counter;
+};
+
+struct e1000_dev_spec_80003es2lan {
+ bool mdic_wa_enable;
+};
+
+struct e1000_shadow_ram {
+ u16 value;
+ bool modified;
+};
+
+#define E1000_ICH8_SHADOW_RAM_WORDS 2048
+
+/* I218 PHY Ultra Low Power (ULP) states */
+enum e1000_ulp_state {
+ e1000_ulp_state_unknown,
+ e1000_ulp_state_off,
+ e1000_ulp_state_on,
+};
+
+struct e1000_dev_spec_ich8lan {
+ bool kmrn_lock_loss_workaround_enabled;
+ struct e1000_shadow_ram shadow_ram[E1000_ICH8_SHADOW_RAM_WORDS];
+ bool nvm_k1_enabled;
+ bool disable_k1_off;
+ bool eee_disable;
+ u16 eee_lp_ability;
+ enum e1000_ulp_state ulp_state;
+ bool ulp_capability_disabled;
+ bool during_suspend_flow;
+ bool during_dpg_exit;
+#ifdef DYNAMIC_LTR_SUPPORT
+ u16 lat_enc;
+ u16 max_ltr_enc;
+#endif
+};
+
+struct e1000_hw {
+ struct e1000_adapter *adapter;
+
+ void __iomem *hw_addr;
+ void __iomem *flash_address;
+
+ struct e1000_mac_info mac;
+ struct e1000_fc_info fc;
+ struct e1000_phy_info phy;
+ struct e1000_nvm_info nvm;
+ struct e1000_bus_info bus;
+ struct e1000_host_mng_dhcp_cookie mng_cookie;
+
+ union {
+ struct e1000_dev_spec_82571 e82571;
+ struct e1000_dev_spec_80003es2lan e80003es2lan;
+ struct e1000_dev_spec_ich8lan ich8lan;
+ } dev_spec;
+};
+
+#include "82571.h"
+#include "80003es2lan.h"
+#include "ich8lan.h"
+
+/* These functions must be implemented by drivers */
+s32 e1000_read_pcie_cap_reg(struct e1000_hw *hw, u32 reg, u16 *value);
+
+#endif
diff --git a/src/ich8lan.c b/src/ich8lan.c
new file mode 100644
index 0000000..4a2342a
--- /dev/null
+++ b/src/ich8lan.c
@@ -0,0 +1,5984 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright(c) 1999 - 2020 Intel Corporation. */
+
+/* 82562G 10/100 Network Connection
+ * 82562G-2 10/100 Network Connection
+ * 82562GT 10/100 Network Connection
+ * 82562GT-2 10/100 Network Connection
+ * 82562V 10/100 Network Connection
+ * 82562V-2 10/100 Network Connection
+ * 82566DC-2 Gigabit Network Connection
+ * 82566DC Gigabit Network Connection
+ * 82566DM-2 Gigabit Network Connection
+ * 82566DM Gigabit Network Connection
+ * 82566MC Gigabit Network Connection
+ * 82566MM Gigabit Network Connection
+ * 82567LM Gigabit Network Connection
+ * 82567LF Gigabit Network Connection
+ * 82567V Gigabit Network Connection
+ * 82567LM-2 Gigabit Network Connection
+ * 82567LF-2 Gigabit Network Connection
+ * 82567V-2 Gigabit Network Connection
+ * 82567LF-3 Gigabit Network Connection
+ * 82567LM-3 Gigabit Network Connection
+ * 82567LM-4 Gigabit Network Connection
+ * 82577LM Gigabit Network Connection
+ * 82577LC Gigabit Network Connection
+ * 82578DM Gigabit Network Connection
+ * 82578DC Gigabit Network Connection
+ * 82579LM Gigabit Network Connection
+ * 82579V Gigabit Network Connection
+ * Ethernet Connection I217-LM
+ * Ethernet Connection I217-V
+ * Ethernet Connection I218-V
+ * Ethernet Connection I218-LM
+ * Ethernet Connection (2) I218-LM
+ * Ethernet Connection (2) I218-V
+ * Ethernet Connection (3) I218-LM
+ * Ethernet Connection (3) I218-V
+ */
+
+#include "e1000.h"
+
+/* ICH GbE Flash Hardware Sequencing Flash Status Register bit breakdown */
+/* Offset 04h HSFSTS */
+union ich8_hws_flash_status {
+ struct ich8_hsfsts {
+ u16 flcdone:1; /* bit 0 Flash Cycle Done */
+ u16 flcerr:1; /* bit 1 Flash Cycle Error */
+ u16 dael:1; /* bit 2 Direct Access error Log */
+ u16 berasesz:2; /* bit 4:3 Sector Erase Size */
+ u16 flcinprog:1; /* bit 5 flash cycle in Progress */
+ u16 reserved1:2; /* bit 13:6 Reserved */
+ u16 reserved2:6; /* bit 13:6 Reserved */
+ u16 fldesvalid:1; /* bit 14 Flash Descriptor Valid */
+ u16 flockdn:1; /* bit 15 Flash Config Lock-Down */
+ } hsf_status;
+ u16 regval;
+};
+
+/* ICH GbE Flash Hardware Sequencing Flash control Register bit breakdown */
+/* Offset 06h FLCTL */
+union ich8_hws_flash_ctrl {
+ struct ich8_hsflctl {
+ u16 flcgo:1; /* 0 Flash Cycle Go */
+ u16 flcycle:2; /* 2:1 Flash Cycle */
+ u16 reserved:5; /* 7:3 Reserved */
+ u16 fldbcount:2; /* 9:8 Flash Data Byte Count */
+ u16 flockdn:6; /* 15:10 Reserved */
+ } hsf_ctrl;
+ u16 regval;
+};
+
+/* ICH Flash Region Access Permissions */
+union ich8_hws_flash_regacc {
+ struct ich8_flracc {
+ u32 grra:8; /* 0:7 GbE region Read Access */
+ u32 grwa:8; /* 8:15 GbE region Write Access */
+ u32 gmrag:8; /* 23:16 GbE Master Read Access Grant */
+ u32 gmwag:8; /* 31:24 GbE Master Write Access Grant */
+ } hsf_flregacc;
+ u16 regval;
+};
+
+static bool e1000_check_mng_mode_ich8lan(struct e1000_hw *hw);
+static bool e1000_check_mng_mode_pchlan(struct e1000_hw *hw);
+static int e1000_rar_set_pch2lan(struct e1000_hw *hw, u8 *addr, u32 index);
+static int e1000_rar_set_pch_lpt(struct e1000_hw *hw, u8 *addr, u32 index);
+static s32 e1000_set_lplu_state_pchlan(struct e1000_hw *hw, bool active);
+static s32 e1000_id_led_init_pchlan(struct e1000_hw *hw);
+static s32 e1000_disable_ulp_lpt_lp(struct e1000_hw *hw, bool force);
+static s32 e1000_setup_copper_link_pch_lpt(struct e1000_hw *hw);
+static s32 e1000_cleanup_led_ich8lan(struct e1000_hw *hw);
+static s32 e1000_led_on_ich8lan(struct e1000_hw *hw);
+static s32 e1000_led_off_ich8lan(struct e1000_hw *hw);
+static s32 e1000_k1_gig_workaround_hv(struct e1000_hw *hw, bool link);
+static s32 e1000_setup_led_pchlan(struct e1000_hw *hw);
+static s32 e1000_cleanup_led_pchlan(struct e1000_hw *hw);
+static s32 e1000_led_on_pchlan(struct e1000_hw *hw);
+static s32 e1000_led_off_pchlan(struct e1000_hw *hw);
+static void e1000_clear_hw_cntrs_ich8lan(struct e1000_hw *hw);
+static s32 e1000_erase_flash_bank_ich8lan(struct e1000_hw *hw, u32 bank);
+static void e1000_initialize_hw_bits_ich8lan(struct e1000_hw *hw);
+static s32 e1000_kmrn_lock_loss_workaround_ich8lan(struct e1000_hw *hw);
+static s32 e1000_read_flash_byte_ich8lan(struct e1000_hw *hw,
+ u32 offset, u8 *data);
+static s32 e1000_read_flash_data_ich8lan(struct e1000_hw *hw, u32 offset,
+ u8 size, u16 *data);
+static s32 e1000_read_flash_data32_ich8lan(struct e1000_hw *hw, u32 offset,
+ u32 *data);
+static s32 e1000_read_flash_dword_ich8lan(struct e1000_hw *hw,
+ u32 offset, u32 *data);
+static s32 e1000_write_flash_data32_ich8lan(struct e1000_hw *hw,
+ u32 offset, u32 data);
+static s32 e1000_retry_write_flash_dword_ich8lan(struct e1000_hw *hw,
+ u32 offset, u32 dword);
+static s32 e1000_read_flash_word_ich8lan(struct e1000_hw *hw,
+ u32 offset, u16 *data);
+static s32 e1000_retry_write_flash_byte_ich8lan(struct e1000_hw *hw,
+ u32 offset, u8 byte);
+static void e1000_power_down_phy_copper_ich8lan(struct e1000_hw *hw);
+static s32 e1000_set_mdio_slow_mode_hv(struct e1000_hw *hw);
+static u32 e1000_rar_get_count_pch_lpt(struct e1000_hw *hw);
+static s32 e1000_k1_workaround_lv(struct e1000_hw *hw);
+static void e1000_gate_hw_phy_config_ich8lan(struct e1000_hw *hw, bool gate);
+
+static inline u16 __er16flash(struct e1000_hw *hw, unsigned long reg)
+{
+ return readw(hw->flash_address + reg);
+}
+
+static inline u32 __er32flash(struct e1000_hw *hw, unsigned long reg)
+{
+ return readl(hw->flash_address + reg);
+}
+
+static inline void __ew16flash(struct e1000_hw *hw, unsigned long reg, u16 val)
+{
+ writew(val, hw->flash_address + reg);
+}
+
+static inline void __ew32flash(struct e1000_hw *hw, unsigned long reg, u32 val)
+{
+ writel(val, hw->flash_address + reg);
+}
+
+#define er16flash(reg) __er16flash(hw, (reg))
+#define er32flash(reg) __er32flash(hw, (reg))
+#define ew16flash(reg, val) __ew16flash(hw, (reg), (val))
+#define ew32flash(reg, val) __ew32flash(hw, (reg), (val))
+
+/**
+ * e1000_phy_is_accessible_pchlan - Check if able to access PHY registers
+ * @hw: pointer to the HW structure
+ *
+ * Test access to the PHY registers by reading the PHY ID registers. If
+ * the PHY ID is already known (e.g. resume path) compare it with known ID,
+ * otherwise assume the read PHY ID is correct if it is valid.
+ *
+ * Assumes the sw/fw/hw semaphore is already acquired.
+ **/
+static bool e1000_phy_is_accessible_pchlan(struct e1000_hw *hw)
+{
+ u16 phy_reg = 0;
+ u32 phy_id = 0;
+ s32 ret_val = 0;
+ u16 retry_count;
+ u32 mac_reg = 0;
+
+ for (retry_count = 0; retry_count < 2; retry_count++) {
+ ret_val = e1e_rphy_locked(hw, MII_PHYSID1, &phy_reg);
+ if (ret_val || (phy_reg == 0xFFFF))
+ continue;
+ phy_id = (u32)(phy_reg << 16);
+
+ ret_val = e1e_rphy_locked(hw, MII_PHYSID2, &phy_reg);
+ if (ret_val || (phy_reg == 0xFFFF)) {
+ phy_id = 0;
+ continue;
+ }
+ phy_id |= (u32)(phy_reg & PHY_REVISION_MASK);
+ break;
+ }
+
+ if (hw->phy.id) {
+ if (hw->phy.id == phy_id)
+ goto out;
+ } else if (phy_id) {
+ hw->phy.id = phy_id;
+ hw->phy.revision = (u32)(phy_reg & ~PHY_REVISION_MASK);
+ goto out;
+ }
+
+ /* In case the PHY needs to be in mdio slow mode,
+ * set slow mode and try to get the PHY id again.
+ */
+ if (hw->mac.type < e1000_pch_lpt) {
+ hw->phy.ops.release(hw);
+ ret_val = e1000_set_mdio_slow_mode_hv(hw);
+ if (!ret_val)
+ ret_val = e1000e_get_phy_id(hw);
+ hw->phy.ops.acquire(hw);
+ }
+
+ if (ret_val)
+ return false;
+out:
+ if (hw->mac.type >= e1000_pch_lpt) {
+ /* Only unforce SMBus if ME is not active */
+ if (!(er32(FWSM) & E1000_ICH_FWSM_FW_VALID)) {
+ /* Unforce SMBus mode in PHY */
+ e1e_rphy_locked(hw, CV_SMB_CTRL, &phy_reg);
+ phy_reg &= ~CV_SMB_CTRL_FORCE_SMBUS;
+ e1e_wphy_locked(hw, CV_SMB_CTRL, phy_reg);
+
+ /* Unforce SMBus mode in MAC */
+ mac_reg = er32(CTRL_EXT);
+ mac_reg &= ~E1000_CTRL_EXT_FORCE_SMBUS;
+ ew32(CTRL_EXT, mac_reg);
+ }
+ }
+
+ return true;
+}
+
+/**
+ * e1000_toggle_lanphypc_pch_lpt - toggle the LANPHYPC pin value
+ * @hw: pointer to the HW structure
+ *
+ * Toggling the LANPHYPC pin value fully power-cycles the PHY and is
+ * used to reset the PHY to a quiescent state when necessary.
+ **/
+static void e1000_toggle_lanphypc_pch_lpt(struct e1000_hw *hw)
+{
+ u32 mac_reg;
+
+ /* Set Phy Config Counter to 50msec */
+ mac_reg = er32(FEXTNVM3);
+ mac_reg &= ~E1000_FEXTNVM3_PHY_CFG_COUNTER_MASK;
+ mac_reg |= E1000_FEXTNVM3_PHY_CFG_COUNTER_50MSEC;
+ ew32(FEXTNVM3, mac_reg);
+
+ /* Toggle LANPHYPC Value bit */
+ mac_reg = er32(CTRL);
+ mac_reg |= E1000_CTRL_LANPHYPC_OVERRIDE;
+ mac_reg &= ~E1000_CTRL_LANPHYPC_VALUE;
+ ew32(CTRL, mac_reg);
+ e1e_flush();
+ usleep_range(1000, 2000);
+ mac_reg &= ~E1000_CTRL_LANPHYPC_OVERRIDE;
+ ew32(CTRL, mac_reg);
+ e1e_flush();
+
+ if (hw->mac.type < e1000_pch_lpt) {
+ msleep(50);
+ } else {
+ u16 count = 20;
+
+ do {
+ usleep_range(5000, 10000);
+ } while (!(er32(CTRL_EXT) & E1000_CTRL_EXT_LPCD) && count--);
+
+ msleep(30);
+ }
+}
+
+/**
+ * e1000_init_phy_workarounds_pchlan - PHY initialization workarounds
+ * @hw: pointer to the HW structure
+ *
+ * Workarounds/flow necessary for PHY initialization during driver load
+ * and resume paths.
+ **/
+static s32 e1000_init_phy_workarounds_pchlan(struct e1000_hw *hw)
+{
+ struct e1000_adapter *adapter = hw->adapter;
+ u32 mac_reg, fwsm = er32(FWSM);
+ s32 ret_val;
+
+ /* Gate automatic PHY configuration by hardware on managed and
+ * non-managed 82579 and newer adapters.
+ */
+ e1000_gate_hw_phy_config_ich8lan(hw, true);
+
+ /* It is not possible to be certain of the current state of ULP
+ * so forcibly disable it.
+ */
+ hw->dev_spec.ich8lan.ulp_state = e1000_ulp_state_unknown;
+ e1000_disable_ulp_lpt_lp(hw, true);
+
+ ret_val = hw->phy.ops.acquire(hw);
+ if (ret_val) {
+ e_dbg("Failed to initialize PHY flow\n");
+ goto out;
+ }
+
+ /* The MAC-PHY interconnect may be in SMBus mode. If the PHY is
+ * inaccessible and resetting the PHY is not blocked, toggle the
+ * LANPHYPC Value bit to force the interconnect to PCIe mode.
+ */
+ switch (hw->mac.type) {
+ case e1000_pch_lpt:
+ case e1000_pch_spt:
+ case e1000_pch_cnp:
+ case e1000_pch_tgp:
+ case e1000_pch_adp:
+ if (e1000_phy_is_accessible_pchlan(hw))
+ break;
+
+ /* Before toggling LANPHYPC, see if PHY is accessible by
+ * forcing MAC to SMBus mode first.
+ */
+ mac_reg = er32(CTRL_EXT);
+ mac_reg |= E1000_CTRL_EXT_FORCE_SMBUS;
+ ew32(CTRL_EXT, mac_reg);
+
+ /* Wait 50 milliseconds for MAC to finish any retries
+ * that it might be trying to perform from previous
+ * attempts to acknowledge any phy read requests.
+ */
+ msleep(50);
+
+ /* fall-through */
+ case e1000_pch2lan:
+ if (e1000_phy_is_accessible_pchlan(hw))
+ break;
+
+ /* fall-through */
+ case e1000_pchlan:
+ if ((hw->mac.type == e1000_pchlan) &&
+ (fwsm & E1000_ICH_FWSM_FW_VALID))
+ break;
+
+ if (hw->phy.ops.check_reset_block(hw)) {
+ e_dbg("Required LANPHYPC toggle blocked by ME\n");
+ ret_val = -E1000_ERR_PHY;
+ break;
+ }
+
+ /* Toggle LANPHYPC Value bit */
+ e1000_toggle_lanphypc_pch_lpt(hw);
+ if (hw->mac.type >= e1000_pch_lpt) {
+ if (e1000_phy_is_accessible_pchlan(hw))
+ break;
+
+ /* Toggling LANPHYPC brings the PHY out of SMBus mode
+ * so ensure that the MAC is also out of SMBus mode
+ */
+ mac_reg = er32(CTRL_EXT);
+ mac_reg &= ~E1000_CTRL_EXT_FORCE_SMBUS;
+ ew32(CTRL_EXT, mac_reg);
+
+ if (e1000_phy_is_accessible_pchlan(hw))
+ break;
+
+ ret_val = -E1000_ERR_PHY;
+ }
+ break;
+ default:
+ break;
+ }
+
+ hw->phy.ops.release(hw);
+ if (!ret_val) {
+
+ /* Check to see if able to reset PHY. Print error if not */
+ if (hw->phy.ops.check_reset_block(hw)) {
+ e_err("Reset blocked by ME\n");
+ goto out;
+ }
+
+ /* Reset the PHY before any access to it. Doing so, ensures
+ * that the PHY is in a known good state before we read/write
+ * PHY registers. The generic reset is sufficient here,
+ * because we haven't determined the PHY type yet.
+ */
+ ret_val = e1000e_phy_hw_reset_generic(hw);
+ if (ret_val)
+ goto out;
+
+ /* On a successful reset, possibly need to wait for the PHY
+ * to quiesce to an accessible state before returning control
+ * to the calling function. If the PHY does not quiesce, then
+ * return E1000E_BLK_PHY_RESET, as this is the condition that
+ * the PHY is in.
+ */
+ ret_val = hw->phy.ops.check_reset_block(hw);
+ if (ret_val)
+ e_err("ME blocked access to PHY after reset\n");
+ }
+
+out:
+ /* Ungate automatic PHY configuration on non-managed 82579 */
+ if ((hw->mac.type == e1000_pch2lan) &&
+ !(fwsm & E1000_ICH_FWSM_FW_VALID)) {
+ usleep_range(10000, 20000);
+ e1000_gate_hw_phy_config_ich8lan(hw, false);
+ }
+
+ return ret_val;
+}
+
+/**
+ * e1000_init_phy_params_pchlan - Initialize PHY function pointers
+ * @hw: pointer to the HW structure
+ *
+ * Initialize family-specific PHY parameters and function pointers.
+ **/
+static s32 e1000_init_phy_params_pchlan(struct e1000_hw *hw)
+{
+ struct e1000_phy_info *phy = &hw->phy;
+ s32 ret_val;
+
+ phy->addr = 1;
+ phy->reset_delay_us = 100;
+
+ phy->ops.set_page = e1000_set_page_igp;
+ phy->ops.read_reg = e1000_read_phy_reg_hv;
+ phy->ops.read_reg_locked = e1000_read_phy_reg_hv_locked;
+ phy->ops.read_reg_page = e1000_read_phy_reg_page_hv;
+ phy->ops.set_d0_lplu_state = e1000_set_lplu_state_pchlan;
+ phy->ops.set_d3_lplu_state = e1000_set_lplu_state_pchlan;
+ phy->ops.write_reg = e1000_write_phy_reg_hv;
+ phy->ops.write_reg_locked = e1000_write_phy_reg_hv_locked;
+ phy->ops.write_reg_page = e1000_write_phy_reg_page_hv;
+ phy->ops.power_up = e1000_power_up_phy_copper;
+ phy->ops.power_down = e1000_power_down_phy_copper_ich8lan;
+ phy->autoneg_mask = AUTONEG_ADVERTISE_SPEED_DEFAULT;
+
+ phy->id = e1000_phy_unknown;
+
+ ret_val = e1000_init_phy_workarounds_pchlan(hw);
+ if (ret_val)
+ return ret_val;
+
+ if (phy->id == e1000_phy_unknown)
+ switch (hw->mac.type) {
+ default:
+ ret_val = e1000e_get_phy_id(hw);
+ if (ret_val)
+ return ret_val;
+ if ((phy->id != 0) && (phy->id != PHY_REVISION_MASK))
+ break;
+ /* fall-through */
+ case e1000_pch2lan:
+ case e1000_pch_lpt:
+ case e1000_pch_spt:
+ case e1000_pch_cnp:
+ case e1000_pch_tgp:
+ case e1000_pch_adp:
+ /* In case the PHY needs to be in mdio slow mode,
+ * set slow mode and try to get the PHY id again.
+ */
+ ret_val = e1000_set_mdio_slow_mode_hv(hw);
+ if (ret_val)
+ return ret_val;
+ ret_val = e1000e_get_phy_id(hw);
+ if (ret_val)
+ return ret_val;
+ break;
+ }
+ phy->type = e1000e_get_phy_type_from_id(phy->id);
+
+ switch (phy->type) {
+ case e1000_phy_82577:
+ case e1000_phy_82579:
+ case e1000_phy_i217:
+ phy->ops.check_polarity = e1000_check_polarity_82577;
+ phy->ops.force_speed_duplex =
+ e1000_phy_force_speed_duplex_82577;
+ phy->ops.get_cable_length = e1000_get_cable_length_82577;
+ phy->ops.get_info = e1000_get_phy_info_82577;
+ phy->ops.commit = e1000e_phy_sw_reset;
+ break;
+ case e1000_phy_82578:
+ phy->ops.check_polarity = e1000_check_polarity_m88;
+ phy->ops.force_speed_duplex = e1000e_phy_force_speed_duplex_m88;
+ phy->ops.get_cable_length = e1000e_get_cable_length_m88;
+ phy->ops.get_info = e1000e_get_phy_info_m88;
+ break;
+ default:
+ ret_val = -E1000_ERR_PHY;
+ break;
+ }
+
+ return ret_val;
+}
+
+/**
+ * e1000_init_phy_params_ich8lan - Initialize PHY function pointers
+ * @hw: pointer to the HW structure
+ *
+ * Initialize family-specific PHY parameters and function pointers.
+ **/
+static s32 e1000_init_phy_params_ich8lan(struct e1000_hw *hw)
+{
+ struct e1000_phy_info *phy = &hw->phy;
+ s32 ret_val;
+ u16 i = 0;
+
+ phy->addr = 1;
+ phy->reset_delay_us = 100;
+
+ phy->ops.power_up = e1000_power_up_phy_copper;
+ phy->ops.power_down = e1000_power_down_phy_copper_ich8lan;
+
+ /* We may need to do this twice - once for IGP and if that fails,
+ * we'll set BM func pointers and try again
+ */
+ ret_val = e1000e_determine_phy_address(hw);
+ if (ret_val) {
+ phy->ops.write_reg = e1000e_write_phy_reg_bm;
+ phy->ops.read_reg = e1000e_read_phy_reg_bm;
+ ret_val = e1000e_determine_phy_address(hw);
+ if (ret_val) {
+ e_dbg("Cannot determine PHY addr. Erroring out\n");
+ return ret_val;
+ }
+ }
+
+ phy->id = 0;
+ while ((e1000_phy_unknown == e1000e_get_phy_type_from_id(phy->id)) &&
+ (i++ < 100)) {
+ usleep_range(1000, 2000);
+ ret_val = e1000e_get_phy_id(hw);
+ if (ret_val)
+ return ret_val;
+ }
+
+ /* Verify phy id */
+ switch (phy->id) {
+ case IGP03E1000_E_PHY_ID:
+ phy->type = e1000_phy_igp_3;
+ phy->autoneg_mask = AUTONEG_ADVERTISE_SPEED_DEFAULT;
+ phy->ops.read_reg_locked = e1000e_read_phy_reg_igp_locked;
+ phy->ops.write_reg_locked = e1000e_write_phy_reg_igp_locked;
+ phy->ops.get_info = e1000e_get_phy_info_igp;
+ phy->ops.check_polarity = e1000_check_polarity_igp;
+ phy->ops.force_speed_duplex = e1000e_phy_force_speed_duplex_igp;
+ break;
+ case IFE_E_PHY_ID:
+ case IFE_PLUS_E_PHY_ID:
+ case IFE_C_E_PHY_ID:
+ phy->type = e1000_phy_ife;
+ phy->autoneg_mask = E1000_ALL_NOT_GIG;
+ phy->ops.get_info = e1000_get_phy_info_ife;
+ phy->ops.check_polarity = e1000_check_polarity_ife;
+ phy->ops.force_speed_duplex = e1000_phy_force_speed_duplex_ife;
+ break;
+ case BME1000_E_PHY_ID:
+ phy->type = e1000_phy_bm;
+ phy->autoneg_mask = AUTONEG_ADVERTISE_SPEED_DEFAULT;
+ phy->ops.read_reg = e1000e_read_phy_reg_bm;
+ phy->ops.write_reg = e1000e_write_phy_reg_bm;
+ phy->ops.commit = e1000e_phy_sw_reset;
+ phy->ops.get_info = e1000e_get_phy_info_m88;
+ phy->ops.check_polarity = e1000_check_polarity_m88;
+ phy->ops.force_speed_duplex = e1000e_phy_force_speed_duplex_m88;
+ break;
+ default:
+ return -E1000_ERR_PHY;
+ }
+
+ return 0;
+}
+
+/**
+ * e1000_init_nvm_params_ich8lan - Initialize NVM function pointers
+ * @hw: pointer to the HW structure
+ *
+ * Initialize family-specific NVM parameters and function
+ * pointers.
+ **/
+static s32 e1000_init_nvm_params_ich8lan(struct e1000_hw *hw)
+{
+ struct e1000_nvm_info *nvm = &hw->nvm;
+ struct e1000_dev_spec_ich8lan *dev_spec = &hw->dev_spec.ich8lan;
+ u32 gfpreg, sector_base_addr, sector_end_addr;
+ u16 i;
+ u32 nvm_size;
+
+ nvm->type = e1000_nvm_flash_sw;
+
+ if (hw->mac.type >= e1000_pch_spt) {
+ /* in SPT, gfpreg doesn't exist. NVM size is taken from the
+ * STRAP register. This is because in SPT the GbE Flash region
+ * is no longer accessed through the flash registers. Instead,
+ * the mechanism has changed, and the Flash region access
+ * registers are now implemented in GbE memory space.
+ */
+ nvm->flash_base_addr = 0;
+ nvm_size = (((er32(STRAP) >> 1) & 0x1F) + 1)
+ * NVM_SIZE_MULTIPLIER;
+ nvm->flash_bank_size = nvm_size / 2;
+ /* Adjust to word count */
+ nvm->flash_bank_size /= sizeof(u16);
+ /* Set the base address for flash register access */
+ hw->flash_address = hw->hw_addr + E1000_FLASH_BASE_ADDR;
+ } else {
+ /* Can't read flash registers if register set isn't mapped. */
+ if (!hw->flash_address) {
+ e_dbg("ERROR: Flash registers not mapped\n");
+ return -E1000_ERR_CONFIG;
+ }
+
+ gfpreg = er32flash(ICH_FLASH_GFPREG);
+
+ /* sector_X_addr is a "sector"-aligned address (4096 bytes)
+ * Add 1 to sector_end_addr since this sector is included in
+ * the overall size.
+ */
+ sector_base_addr = gfpreg & FLASH_GFPREG_BASE_MASK;
+ sector_end_addr = ((gfpreg >> 16) & FLASH_GFPREG_BASE_MASK) + 1;
+
+ /* flash_base_addr is byte-aligned */
+ nvm->flash_base_addr = sector_base_addr
+ << FLASH_SECTOR_ADDR_SHIFT;
+
+ /* find total size of the NVM, then cut in half since the total
+ * size represents two separate NVM banks.
+ */
+ nvm->flash_bank_size = ((sector_end_addr - sector_base_addr)
+ << FLASH_SECTOR_ADDR_SHIFT);
+ nvm->flash_bank_size /= 2;
+ /* Adjust to word count */
+ nvm->flash_bank_size /= sizeof(u16);
+ }
+
+ nvm->word_size = E1000_ICH8_SHADOW_RAM_WORDS;
+
+ /* Clear shadow ram */
+ for (i = 0; i < nvm->word_size; i++) {
+ dev_spec->shadow_ram[i].modified = false;
+ dev_spec->shadow_ram[i].value = 0xFFFF;
+ }
+
+ return 0;
+}
+
+/**
+ * e1000_init_mac_params_ich8lan - Initialize MAC function pointers
+ * @hw: pointer to the HW structure
+ *
+ * Initialize family-specific MAC parameters and function
+ * pointers.
+ **/
+static s32 e1000_init_mac_params_ich8lan(struct e1000_hw *hw)
+{
+ struct e1000_mac_info *mac = &hw->mac;
+ u16 pci_cfg;
+
+ /* Set media type function pointer */
+ hw->phy.media_type = e1000_media_type_copper;
+
+ /* Set mta register count */
+ mac->mta_reg_count = 32;
+ /* Set rar entry count */
+ mac->rar_entry_count = E1000_ICH_RAR_ENTRIES;
+ if (mac->type == e1000_ich8lan)
+ mac->rar_entry_count--;
+ /* FWSM register */
+ mac->has_fwsm = true;
+ /* ARC subsystem not supported */
+ mac->arc_subsystem_valid = false;
+ /* Adaptive IFS supported */
+ mac->adaptive_ifs = true;
+
+ /* LED and other operations */
+ switch (mac->type) {
+ case e1000_ich8lan:
+ case e1000_ich9lan:
+ case e1000_ich10lan:
+ /* check management mode */
+ mac->ops.check_mng_mode = e1000_check_mng_mode_ich8lan;
+ /* ID LED init */
+ mac->ops.id_led_init = e1000e_id_led_init_generic;
+ /* blink LED */
+ mac->ops.blink_led = e1000e_blink_led_generic;
+ /* setup LED */
+ mac->ops.setup_led = e1000e_setup_led_generic;
+ /* cleanup LED */
+ mac->ops.cleanup_led = e1000_cleanup_led_ich8lan;
+ /* turn on/off LED */
+ mac->ops.led_on = e1000_led_on_ich8lan;
+ mac->ops.led_off = e1000_led_off_ich8lan;
+ break;
+ case e1000_pch2lan:
+ mac->rar_entry_count = E1000_PCH2_RAR_ENTRIES;
+ mac->ops.rar_set = e1000_rar_set_pch2lan;
+ /* fall-through */
+ case e1000_pch_lpt:
+ case e1000_pch_spt:
+ case e1000_pch_cnp:
+ case e1000_pch_tgp:
+ case e1000_pch_adp:
+ case e1000_pchlan:
+ /* save PCH revision_id */
+ pci_read_config_word(hw->adapter->pdev,
+ E1000_PCI_REVISION_ID_REG, &pci_cfg);
+ /* SPT uses full byte for revision ID,
+ * as opposed to previous generations
+ */
+ if (hw->mac.type >= e1000_pch_spt)
+ hw->adapter->revision_id = (u8)(pci_cfg &= 0x00FF);
+ else
+ hw->adapter->revision_id = (u8)(pci_cfg &= 0x000F);
+ /* check management mode */
+ mac->ops.check_mng_mode = e1000_check_mng_mode_pchlan;
+ /* ID LED init */
+ mac->ops.id_led_init = e1000_id_led_init_pchlan;
+ /* setup LED */
+ mac->ops.setup_led = e1000_setup_led_pchlan;
+ /* cleanup LED */
+ mac->ops.cleanup_led = e1000_cleanup_led_pchlan;
+ /* turn on/off LED */
+ mac->ops.led_on = e1000_led_on_pchlan;
+ mac->ops.led_off = e1000_led_off_pchlan;
+ break;
+ default:
+ break;
+ }
+
+ if (mac->type >= e1000_pch_lpt) {
+ mac->rar_entry_count = E1000_PCH_LPT_RAR_ENTRIES;
+ mac->ops.rar_set = e1000_rar_set_pch_lpt;
+ mac->ops.setup_physical_interface =
+ e1000_setup_copper_link_pch_lpt;
+ mac->ops.rar_get_count = e1000_rar_get_count_pch_lpt;
+ }
+
+ /* Enable PCS Lock-loss workaround for ICH8 */
+ if (mac->type == e1000_ich8lan)
+ e1000e_set_kmrn_lock_loss_workaround_ich8lan(hw, true);
+
+ return 0;
+}
+
+/**
+ * __e1000_access_emi_reg_locked - Read/write EMI register
+ * @hw: pointer to the HW structure
+ * @address: EMI address to program
+ * @data: pointer to value to read/write from/to the EMI address
+ * @read: boolean flag to indicate read or write
+ *
+ * This helper function assumes the SW/FW/HW Semaphore is already acquired.
+ **/
+static s32 __e1000_access_emi_reg_locked(struct e1000_hw *hw, u16 address,
+ u16 *data, bool read)
+{
+ s32 ret_val;
+
+ ret_val = e1e_wphy_locked(hw, I82579_EMI_ADDR, address);
+ if (ret_val)
+ return ret_val;
+
+ if (read)
+ ret_val = e1e_rphy_locked(hw, I82579_EMI_DATA, data);
+ else
+ ret_val = e1e_wphy_locked(hw, I82579_EMI_DATA, *data);
+
+ return ret_val;
+}
+
+/**
+ * e1000_read_emi_reg_locked - Read Extended Management Interface register
+ * @hw: pointer to the HW structure
+ * @addr: EMI address to program
+ * @data: value to be read from the EMI address
+ *
+ * Assumes the SW/FW/HW Semaphore is already acquired.
+ **/
+s32 e1000_read_emi_reg_locked(struct e1000_hw *hw, u16 addr, u16 *data)
+{
+ return __e1000_access_emi_reg_locked(hw, addr, data, true);
+}
+
+/**
+ * e1000_write_emi_reg_locked - Write Extended Management Interface register
+ * @hw: pointer to the HW structure
+ * @addr: EMI address to program
+ * @data: value to be written to the EMI address
+ *
+ * Assumes the SW/FW/HW Semaphore is already acquired.
+ **/
+s32 e1000_write_emi_reg_locked(struct e1000_hw *hw, u16 addr, u16 data)
+{
+ return __e1000_access_emi_reg_locked(hw, addr, &data, false);
+}
+
+/**
+ * e1000_set_eee_pchlan - Enable/disable EEE support
+ * @hw: pointer to the HW structure
+ *
+ * Enable/disable EEE based on setting in dev_spec structure, the duplex of
+ * the link and the EEE capabilities of the link partner. The LPI Control
+ * register bits will remain set only if/when link is up.
+ *
+ * EEE LPI must not be asserted earlier than one second after link is up.
+ * On 82579, EEE LPI should not be enabled until such time otherwise there
+ * can be link issues with some switches. Other devices can have EEE LPI
+ * enabled immediately upon link up since they have a timer in hardware which
+ * prevents LPI from being asserted too early.
+ **/
+s32 e1000_set_eee_pchlan(struct e1000_hw *hw)
+{
+ struct e1000_dev_spec_ich8lan *dev_spec = &hw->dev_spec.ich8lan;
+ s32 ret_val;
+ u16 lpa, pcs_status, adv, adv_addr, lpi_ctrl, data;
+
+ switch (hw->phy.type) {
+ case e1000_phy_82579:
+ lpa = I82579_EEE_LP_ABILITY;
+ pcs_status = I82579_EEE_PCS_STATUS;
+ adv_addr = I82579_EEE_ADVERTISEMENT;
+ break;
+ case e1000_phy_i217:
+ lpa = I217_EEE_LP_ABILITY;
+ pcs_status = I217_EEE_PCS_STATUS;
+ adv_addr = I217_EEE_ADVERTISEMENT;
+ break;
+ default:
+ return 0;
+ }
+
+ ret_val = hw->phy.ops.acquire(hw);
+ if (ret_val)
+ return ret_val;
+
+ ret_val = e1e_rphy_locked(hw, I82579_LPI_CTRL, &lpi_ctrl);
+ if (ret_val)
+ goto release;
+
+ /* Clear bits that enable EEE in various speeds */
+ lpi_ctrl &= ~I82579_LPI_CTRL_ENABLE_MASK;
+
+ /* Enable EEE if not disabled by user */
+ if (!dev_spec->eee_disable) {
+ /* Save off link partner's EEE ability */
+ ret_val = e1000_read_emi_reg_locked(hw, lpa,
+ &dev_spec->eee_lp_ability);
+ if (ret_val)
+ goto release;
+
+ /* Read EEE advertisement */
+ ret_val = e1000_read_emi_reg_locked(hw, adv_addr, &adv);
+ if (ret_val)
+ goto release;
+
+ /* Enable EEE only for speeds in which the link partner is
+ * EEE capable and for which we advertise EEE.
+ */
+ if (adv & dev_spec->eee_lp_ability & I82579_EEE_1000_SUPPORTED)
+ lpi_ctrl |= I82579_LPI_CTRL_1000_ENABLE;
+
+ if (adv & dev_spec->eee_lp_ability & I82579_EEE_100_SUPPORTED) {
+ e1e_rphy_locked(hw, MII_LPA, &data);
+ if (data & LPA_100FULL)
+ lpi_ctrl |= I82579_LPI_CTRL_100_ENABLE;
+ else
+ /* EEE is not supported in 100Half, so ignore
+ * partner's EEE in 100 ability if full-duplex
+ * is not advertised.
+ */
+ dev_spec->eee_lp_ability &=
+ ~I82579_EEE_100_SUPPORTED;
+ }
+ }
+
+ if (hw->phy.type == e1000_phy_82579) {
+ ret_val = e1000_read_emi_reg_locked(hw, I82579_LPI_PLL_SHUT,
+ &data);
+ if (ret_val)
+ goto release;
+
+ data &= ~I82579_LPI_100_PLL_SHUT;
+ ret_val = e1000_write_emi_reg_locked(hw, I82579_LPI_PLL_SHUT,
+ data);
+ }
+
+ /* R/Clr IEEE MMD 3.1 bits 11:10 - Tx/Rx LPI Received */
+ ret_val = e1000_read_emi_reg_locked(hw, pcs_status, &data);
+ if (ret_val)
+ goto release;
+
+ ret_val = e1e_wphy_locked(hw, I82579_LPI_CTRL, lpi_ctrl);
+release:
+ hw->phy.ops.release(hw);
+
+ return ret_val;
+}
+
+/**
+ * e1000_k1_workaround_lpt_lp - K1 workaround on Lynxpoint-LP
+ * @hw: pointer to the HW structure
+ * @link: link up bool flag
+ *
+ * When K1 is enabled for 1Gbps, the MAC can miss 2 DMA completion indications
+ * preventing further DMA write requests. Workaround the issue by disabling
+ * the de-assertion of the clock request when in 1Gpbs mode.
+ * Also, set appropriate Tx re-transmission timeouts for 10 and 100Half link
+ * speeds in order to avoid Tx hangs.
+ **/
+static s32 e1000_k1_workaround_lpt_lp(struct e1000_hw *hw, bool link)
+{
+ u32 fextnvm6 = er32(FEXTNVM6);
+ u32 status = er32(STATUS);
+ s32 ret_val = 0;
+ u16 reg;
+
+ if (link && (status & E1000_STATUS_SPEED_1000)) {
+ ret_val = hw->phy.ops.acquire(hw);
+ if (ret_val)
+ return ret_val;
+
+ ret_val =
+ e1000e_read_kmrn_reg_locked(hw, E1000_KMRNCTRLSTA_K1_CONFIG,
+ &reg);
+ if (ret_val)
+ goto release;
+
+ ret_val =
+ e1000e_write_kmrn_reg_locked(hw,
+ E1000_KMRNCTRLSTA_K1_CONFIG,
+ reg &
+ ~E1000_KMRNCTRLSTA_K1_ENABLE);
+ if (ret_val)
+ goto release;
+
+ usleep_range(10, 20);
+
+ ew32(FEXTNVM6, fextnvm6 | E1000_FEXTNVM6_REQ_PLL_CLK);
+
+ ret_val =
+ e1000e_write_kmrn_reg_locked(hw,
+ E1000_KMRNCTRLSTA_K1_CONFIG,
+ reg);
+release:
+ hw->phy.ops.release(hw);
+ } else {
+ /* clear FEXTNVM6 bit 8 on link down or 10/100 */
+ fextnvm6 &= ~E1000_FEXTNVM6_REQ_PLL_CLK;
+
+ if ((hw->phy.revision > 5) || !link ||
+ ((status & E1000_STATUS_SPEED_100) &&
+ (status & E1000_STATUS_FD)))
+ goto update_fextnvm6;
+
+ ret_val = e1e_rphy(hw, I217_INBAND_CTRL, &reg);
+ if (ret_val)
+ return ret_val;
+
+ /* Clear link status transmit timeout */
+ reg &= ~I217_INBAND_CTRL_LINK_STAT_TX_TIMEOUT_MASK;
+
+ if (status & E1000_STATUS_SPEED_100) {
+ /* Set inband Tx timeout to 5x10us for 100Half */
+ reg |= 5 << I217_INBAND_CTRL_LINK_STAT_TX_TIMEOUT_SHIFT;
+
+ /* Do not extend the K1 entry latency for 100Half */
+ fextnvm6 &= ~E1000_FEXTNVM6_ENABLE_K1_ENTRY_CONDITION;
+ } else {
+ /* Set inband Tx timeout to 50x10us for 10Full/Half */
+ reg |= 50 <<
+ I217_INBAND_CTRL_LINK_STAT_TX_TIMEOUT_SHIFT;
+
+ /* Extend the K1 entry latency for 10 Mbps */
+ fextnvm6 |= E1000_FEXTNVM6_ENABLE_K1_ENTRY_CONDITION;
+ }
+
+ ret_val = e1e_wphy(hw, I217_INBAND_CTRL, reg);
+ if (ret_val)
+ return ret_val;
+
+update_fextnvm6:
+ ew32(FEXTNVM6, fextnvm6);
+ }
+
+ return ret_val;
+}
+
+/**
+ * e1000_platform_pm_pch_lpt - Set platform power management values
+ * @hw: pointer to the HW structure
+ * @link: bool indicating link status
+ *
+ * Set the Latency Tolerance Reporting (LTR) values for the "PCIe-like"
+ * GbE MAC in the Lynx Point PCH based on Rx buffer size and link speed
+ * when link is up (which must not exceed the maximum latency supported
+ * by the platform), otherwise specify there is no LTR requirement.
+ * Unlike true-PCIe devices which set the LTR maximum snoop/no-snoop
+ * latencies in the LTR Extended Capability Structure in the PCIe Extended
+ * Capability register set, on this device LTR is set by writing the
+ * equivalent snoop/no-snoop latencies in the LTRV register in the MAC and
+ * set the SEND bit to send an Intel On-chip System Fabric sideband (IOSF-SB)
+ * message to the PMC.
+ **/
+static s32 e1000_platform_pm_pch_lpt(struct e1000_hw *hw, bool link)
+{
+ u32 reg = link << (E1000_LTRV_REQ_SHIFT + E1000_LTRV_NOSNOOP_SHIFT) |
+ link << E1000_LTRV_REQ_SHIFT | E1000_LTRV_SEND;
+ u16 lat_enc = 0; /* latency encoded */
+
+ if (link) {
+ u16 speed, duplex, scale = 0;
+ u16 max_snoop, max_nosnoop;
+ u16 max_ltr_enc; /* max LTR latency encoded */
+ s64 value;
+ u32 rxa;
+
+ if (!hw->adapter->max_frame_size) {
+ e_dbg("max_frame_size not set.\n");
+ return -E1000_ERR_CONFIG;
+ }
+
+ hw->mac.ops.get_link_up_info(hw, &speed, &duplex);
+ if (!speed) {
+ e_dbg("Speed not set.\n");
+ return -E1000_ERR_CONFIG;
+ }
+
+ /* Rx Packet Buffer Allocation size (KB) */
+ rxa = er32(PBA) & E1000_PBA_RXA_MASK;
+
+ /* Determine the maximum latency tolerated by the device.
+ *
+ * Per the PCIe spec, the tolerated latencies are encoded as
+ * a 3-bit encoded scale (only 0-5 are valid) multiplied by
+ * a 10-bit value (0-1023) to provide a range from 1 ns to
+ * 2^25*(2^10-1) ns. The scale is encoded as 0=2^0ns,
+ * 1=2^5ns, 2=2^10ns,...5=2^25ns.
+ */
+ rxa *= 512;
+ value = (rxa > hw->adapter->max_frame_size) ?
+ (rxa - hw->adapter->max_frame_size) * (16000 / speed) : 0;
+
+ while (value > PCI_LTR_VALUE_MASK) {
+ scale++;
+ value = DIV_ROUND_UP(value, (1 << 5));
+ }
+ if (scale > E1000_LTRV_SCALE_MAX) {
+ e_dbg("Invalid LTR latency scale %d\n", scale);
+ return -E1000_ERR_CONFIG;
+ }
+ lat_enc = (u16)((scale << PCI_LTR_SCALE_SHIFT) | value);
+
+ /* Determine the maximum latency tolerated by the platform */
+ pci_read_config_word(hw->adapter->pdev, E1000_PCI_LTR_CAP_LPT,
+ &max_snoop);
+ pci_read_config_word(hw->adapter->pdev,
+ E1000_PCI_LTR_CAP_LPT + 2, &max_nosnoop);
+ max_ltr_enc = max_t(u16, max_snoop, max_nosnoop);
+
+ if (lat_enc > max_ltr_enc)
+ lat_enc = max_ltr_enc;
+#ifdef DYNAMIC_LTR_SUPPORT
+ hw->dev_spec.ich8lan.lat_enc = lat_enc;
+ hw->dev_spec.ich8lan.max_ltr_enc = max_ltr_enc;
+ if ((hw->adapter->pdev->device == E1000_DEV_ID_PCH_I218_LM3) ||
+ (hw->adapter->pdev->device == E1000_DEV_ID_PCH_I218_V3) ||
+ (hw->mac.type >= e1000_pch_spt))
+ lat_enc = max_ltr_enc;
+
+#endif /* DYNAMIC_LTR_SUPPORT */
+ }
+
+ /* Set Snoop and No-Snoop latencies the same */
+ reg |= lat_enc | (lat_enc << E1000_LTRV_NOSNOOP_SHIFT);
+ ew32(LTRV, reg);
+
+ return 0;
+}
+
+#ifdef DYNAMIC_LTR_SUPPORT
+/**
+ * e1000_demote_ltr - Demote/Promote the LTR value
+ * @hw: pointer to the HW structure
+ * @demote: boolean value to control whether we are demoting or promoting
+ * the LTR value (promoting allows deeper C-States).
+ * @link: boolean value stating whether we currently have link
+ *
+ * Configure the LTRV register with the proper LTR value
+ **/
+void e1000_demote_ltr(struct e1000_hw *hw, bool demote, bool link)
+{
+ u32 reg = link << (E1000_LTRV_REQ_SHIFT + E1000_LTRV_NOSNOOP_SHIFT) |
+ link << E1000_LTRV_REQ_SHIFT | E1000_LTRV_SEND;
+
+ if ((hw->adapter->pdev->device != E1000_DEV_ID_PCH_I218_LM3) &&
+ (hw->adapter->pdev->device != E1000_DEV_ID_PCH_I218_V3) &&
+ (hw->mac.type < e1000_pch_spt))
+ return;
+
+ if (demote) {
+ reg |= hw->dev_spec.ich8lan.lat_enc |
+ (hw->dev_spec.ich8lan.lat_enc << E1000_LTRV_NOSNOOP_SHIFT);
+ } else {
+ reg |= hw->dev_spec.ich8lan.max_ltr_enc |
+ (hw->dev_spec.ich8lan.max_ltr_enc <<
+ E1000_LTRV_NOSNOOP_SHIFT);
+ }
+
+ ew32(LTRV, reg);
+ return;
+}
+
+#endif /* DYNAMIC_LTR_SUPPORT */
+/**
+ * e1000_enable_ulp_lpt_lp - configure Ultra Low Power mode for LynxPoint-LP
+ * @hw: pointer to the HW structure
+ * @to_sx: boolean indicating a system power state transition to Sx
+ *
+ * When link is down, configure ULP mode to significantly reduce the power
+ * to the PHY. If on a Manageability Engine (ME) enabled system, tell the
+ * ME firmware to start the ULP configuration. If not on an ME enabled
+ * system, configure the ULP mode by software.
+ */
+s32 e1000_enable_ulp_lpt_lp(struct e1000_hw *hw, bool to_sx)
+{
+ u32 mac_reg;
+ s32 ret_val = 0;
+ u16 phy_reg;
+ u16 oem_reg = 0;
+
+ if ((hw->mac.type < e1000_pch_lpt) ||
+ (hw->adapter->pdev->device == E1000_DEV_ID_PCH_LPT_I217_LM) ||
+ (hw->adapter->pdev->device == E1000_DEV_ID_PCH_LPT_I217_V) ||
+ (hw->adapter->pdev->device == E1000_DEV_ID_PCH_I218_LM2) ||
+ (hw->adapter->pdev->device == E1000_DEV_ID_PCH_I218_V2) ||
+ (hw->dev_spec.ich8lan.ulp_state == e1000_ulp_state_on))
+ return 0;
+
+ if (er32(FWSM) & E1000_ICH_FWSM_FW_VALID) {
+ /* Request ME configure ULP mode in the PHY */
+ mac_reg = er32(H2ME);
+ mac_reg |= E1000_H2ME_ULP | E1000_H2ME_ENFORCE_SETTINGS;
+ ew32(H2ME, mac_reg);
+
+ goto out;
+ }
+
+ if (!to_sx) {
+ int i = 0;
+
+ /* Poll up to 5 seconds for Cable Disconnected indication */
+ while (!(er32(FEXT) & E1000_FEXT_PHY_CABLE_DISCONNECTED)) {
+ /* Bail if link is re-acquired */
+ if (er32(STATUS) & E1000_STATUS_LU)
+ return -E1000_ERR_PHY;
+
+ if (i++ == 100)
+ break;
+
+ msleep(50);
+ }
+ e_dbg("CABLE_DISCONNECTED %s set after %dmsec\n",
+ (er32(FEXT) &
+ E1000_FEXT_PHY_CABLE_DISCONNECTED) ? "" : "not", i * 50);
+ }
+
+ ret_val = hw->phy.ops.acquire(hw);
+ if (ret_val)
+ goto out;
+
+ /* Force SMBus mode in PHY */
+ ret_val = e1000_read_phy_reg_hv_locked(hw, CV_SMB_CTRL, &phy_reg);
+ if (ret_val)
+ goto release;
+ phy_reg |= CV_SMB_CTRL_FORCE_SMBUS;
+ e1000_write_phy_reg_hv_locked(hw, CV_SMB_CTRL, phy_reg);
+
+ /* Force SMBus mode in MAC */
+ mac_reg = er32(CTRL_EXT);
+ mac_reg |= E1000_CTRL_EXT_FORCE_SMBUS;
+ ew32(CTRL_EXT, mac_reg);
+
+ /* Si workaround for ULP entry flow on i127/rev6 h/w. Enable
+ * LPLU and disable Gig speed when entering ULP
+ */
+ if ((hw->phy.type == e1000_phy_i217) && (hw->phy.revision == 6)) {
+ ret_val = e1000_read_phy_reg_hv_locked(hw, HV_OEM_BITS,
+ &oem_reg);
+ if (ret_val)
+ goto release;
+
+ phy_reg = oem_reg;
+ phy_reg |= HV_OEM_BITS_LPLU | HV_OEM_BITS_GBE_DIS;
+
+ ret_val = e1000_write_phy_reg_hv_locked(hw, HV_OEM_BITS,
+ phy_reg);
+
+ if (ret_val)
+ goto release;
+ }
+
+ /* Set Inband ULP Exit, Reset to SMBus mode and
+ * Disable SMBus Release on PERST# in PHY
+ */
+ ret_val = e1000_read_phy_reg_hv_locked(hw, I218_ULP_CONFIG1, &phy_reg);
+ if (ret_val)
+ goto release;
+ phy_reg |= (I218_ULP_CONFIG1_RESET_TO_SMBUS |
+ I218_ULP_CONFIG1_DISABLE_SMB_PERST);
+ if (to_sx) {
+ if (er32(WUFC) & E1000_WUFC_LNKC)
+ phy_reg |= I218_ULP_CONFIG1_WOL_HOST;
+ else
+ phy_reg &= ~I218_ULP_CONFIG1_WOL_HOST;
+
+ phy_reg |= I218_ULP_CONFIG1_STICKY_ULP;
+ phy_reg &= ~I218_ULP_CONFIG1_INBAND_EXIT;
+ } else {
+ phy_reg |= I218_ULP_CONFIG1_INBAND_EXIT;
+ phy_reg &= ~I218_ULP_CONFIG1_STICKY_ULP;
+ phy_reg &= ~I218_ULP_CONFIG1_WOL_HOST;
+ }
+ e1000_write_phy_reg_hv_locked(hw, I218_ULP_CONFIG1, phy_reg);
+
+ /* Set Disable SMBus Release on PERST# in MAC */
+ mac_reg = er32(FEXTNVM7);
+ mac_reg |= E1000_FEXTNVM7_DISABLE_SMB_PERST;
+ ew32(FEXTNVM7, mac_reg);
+
+ /* Commit ULP changes in PHY by starting auto ULP configuration */
+ phy_reg |= I218_ULP_CONFIG1_START;
+ e1000_write_phy_reg_hv_locked(hw, I218_ULP_CONFIG1, phy_reg);
+
+ if ((hw->phy.type == e1000_phy_i217) && (hw->phy.revision == 6) &&
+ to_sx && (er32(STATUS) & E1000_STATUS_LU)) {
+ ret_val = e1000_write_phy_reg_hv_locked(hw, HV_OEM_BITS,
+ oem_reg);
+ if (ret_val)
+ goto release;
+ }
+
+release:
+ hw->phy.ops.release(hw);
+out:
+ if (ret_val)
+ e_dbg("Error in ULP enable flow: %d\n", ret_val);
+ else
+ hw->dev_spec.ich8lan.ulp_state = e1000_ulp_state_on;
+
+ return ret_val;
+}
+
+/**
+ * e1000_disable_ulp_lpt_lp - unconfigure Ultra Low Power mode for LynxPoint-LP
+ * @hw: pointer to the HW structure
+ * @force: boolean indicating whether or not to force disabling ULP
+ *
+ * Un-configure ULP mode when link is up, the system is transitioned from
+ * Sx or the driver is unloaded. If on a Manageability Engine (ME) enabled
+ * system, poll for an indication from ME that ULP has been un-configured.
+ * If not on an ME enabled system, un-configure the ULP mode by software.
+ *
+ * During nominal operation, this function is called when link is acquired
+ * to disable ULP mode (force=false); otherwise, for example when unloading
+ * the driver or during Sx->S0 transitions, this is called with force=true
+ * to forcibly disable ULP.
+ */
+static s32 e1000_disable_ulp_lpt_lp(struct e1000_hw *hw, bool force)
+{
+ s32 ret_val = 0;
+ u8 ulp_exit_timeout = 30;
+ u32 mac_reg;
+ u16 phy_reg;
+ int i = 0;
+
+ if ((hw->mac.type < e1000_pch_lpt) ||
+ (hw->adapter->pdev->device == E1000_DEV_ID_PCH_LPT_I217_LM) ||
+ (hw->adapter->pdev->device == E1000_DEV_ID_PCH_LPT_I217_V) ||
+ (hw->adapter->pdev->device == E1000_DEV_ID_PCH_I218_LM2) ||
+ (hw->adapter->pdev->device == E1000_DEV_ID_PCH_I218_V2) ||
+ (hw->dev_spec.ich8lan.ulp_state == e1000_ulp_state_off))
+ return 0;
+
+ if (er32(FWSM) & E1000_ICH_FWSM_FW_VALID) {
+ if (force) {
+ /* Request ME un-configure ULP mode in the PHY */
+ mac_reg = er32(H2ME);
+ mac_reg &= ~E1000_H2ME_ULP;
+ mac_reg |= E1000_H2ME_ENFORCE_SETTINGS;
+ ew32(H2ME, mac_reg);
+ }
+
+ if (hw->mac.type == e1000_pch_cnp)
+ ulp_exit_timeout = 100;
+
+ while (er32(FWSM) & E1000_FWSM_ULP_CFG_DONE) {
+ if (i++ == ulp_exit_timeout) {
+ ret_val = -E1000_ERR_PHY;
+ goto out;
+ }
+
+ usleep_range(10000, 20000);
+ }
+ e_dbg("ULP_CONFIG_DONE cleared after %dmsec\n", i * 10);
+
+ if (force) {
+ mac_reg = er32(H2ME);
+ mac_reg &= ~E1000_H2ME_ENFORCE_SETTINGS;
+ ew32(H2ME, mac_reg);
+ } else {
+ /* Clear H2ME.ULP after ME ULP configuration */
+ mac_reg = er32(H2ME);
+ mac_reg &= ~E1000_H2ME_ULP;
+ ew32(H2ME, mac_reg);
+ }
+
+ goto out;
+ }
+
+ ret_val = hw->phy.ops.acquire(hw);
+ if (ret_val)
+ goto out;
+
+ if (force)
+ /* Toggle LANPHYPC Value bit */
+ e1000_toggle_lanphypc_pch_lpt(hw);
+
+ /* Unforce SMBus mode in PHY */
+ ret_val = e1000_read_phy_reg_hv_locked(hw, CV_SMB_CTRL, &phy_reg);
+ if (ret_val) {
+ /* The MAC might be in PCIe mode, so temporarily force to
+ * SMBus mode in order to access the PHY.
+ */
+ mac_reg = er32(CTRL_EXT);
+ mac_reg |= E1000_CTRL_EXT_FORCE_SMBUS;
+ ew32(CTRL_EXT, mac_reg);
+
+ msleep(50);
+
+ ret_val = e1000_read_phy_reg_hv_locked(hw, CV_SMB_CTRL,
+ &phy_reg);
+ if (ret_val)
+ goto release;
+ }
+ phy_reg &= ~CV_SMB_CTRL_FORCE_SMBUS;
+ e1000_write_phy_reg_hv_locked(hw, CV_SMB_CTRL, phy_reg);
+
+ /* Unforce SMBus mode in MAC */
+ mac_reg = er32(CTRL_EXT);
+ mac_reg &= ~E1000_CTRL_EXT_FORCE_SMBUS;
+ ew32(CTRL_EXT, mac_reg);
+
+ /* When ULP mode was previously entered, K1 was disabled by the
+ * hardware. Re-Enable K1 in the PHY when exiting ULP.
+ */
+ ret_val = e1000_read_phy_reg_hv_locked(hw, HV_PM_CTRL, &phy_reg);
+ if (ret_val)
+ goto release;
+ phy_reg |= HV_PM_CTRL_K1_ENABLE;
+ e1000_write_phy_reg_hv_locked(hw, HV_PM_CTRL, phy_reg);
+
+ /* Clear ULP enabled configuration */
+ ret_val = e1000_read_phy_reg_hv_locked(hw, I218_ULP_CONFIG1, &phy_reg);
+ if (ret_val)
+ goto release;
+ phy_reg &= ~(I218_ULP_CONFIG1_IND |
+ I218_ULP_CONFIG1_STICKY_ULP |
+ I218_ULP_CONFIG1_RESET_TO_SMBUS |
+ I218_ULP_CONFIG1_WOL_HOST |
+ I218_ULP_CONFIG1_INBAND_EXIT |
+ I218_ULP_CONFIG1_EN_ULP_LANPHYPC |
+ I218_ULP_CONFIG1_DIS_CLR_STICKY_ON_PERST |
+ I218_ULP_CONFIG1_DISABLE_SMB_PERST);
+ e1000_write_phy_reg_hv_locked(hw, I218_ULP_CONFIG1, phy_reg);
+
+ /* Commit ULP changes by starting auto ULP configuration */
+ phy_reg |= I218_ULP_CONFIG1_START;
+ e1000_write_phy_reg_hv_locked(hw, I218_ULP_CONFIG1, phy_reg);
+
+ /* Clear Disable SMBus Release on PERST# in MAC */
+ mac_reg = er32(FEXTNVM7);
+ mac_reg &= ~E1000_FEXTNVM7_DISABLE_SMB_PERST;
+ ew32(FEXTNVM7, mac_reg);
+
+release:
+ hw->phy.ops.release(hw);
+ if (force) {
+ e1000_phy_hw_reset(hw);
+ msleep(50);
+ }
+out:
+ if (ret_val)
+ e_dbg("Error in ULP disable flow: %d\n", ret_val);
+ else
+ hw->dev_spec.ich8lan.ulp_state = e1000_ulp_state_off;
+
+ return ret_val;
+}
+
+/**
+ * e1000_check_for_copper_link_ich8lan - Check for link (Copper)
+ * @hw: pointer to the HW structure
+ *
+ * Checks to see of the link status of the hardware has changed. If a
+ * change in link status has been detected, then we read the PHY registers
+ * to get the current speed/duplex if link exists.
+ **/
+static s32 e1000_check_for_copper_link_ich8lan(struct e1000_hw *hw)
+{
+ struct e1000_mac_info *mac = &hw->mac;
+ s32 ret_val, tipg_reg = 0;
+ u16 emi_addr, emi_val = 0;
+ bool link;
+ u16 phy_reg;
+
+ /* We only want to go out to the PHY registers to see if Auto-Neg
+ * has completed and/or if our link status has changed. The
+ * get_link_status flag is set upon receiving a Link Status
+ * Change or Rx Sequence Error interrupt.
+ */
+ if (!mac->get_link_status)
+ return 0;
+
+ /* First we want to see if the MII Status Register reports
+ * link. If so, then we want to get the current speed/duplex
+ * of the PHY.
+ */
+ ret_val = e1000e_phy_has_link_generic(hw, 1, 0, &link);
+ if (ret_val)
+ return ret_val;
+
+ if (hw->mac.type == e1000_pchlan) {
+ ret_val = e1000_k1_gig_workaround_hv(hw, link);
+ if (ret_val)
+ return ret_val;
+ }
+
+ /* When connected at 10Mbps half-duplex, some parts are excessively
+ * aggressive resulting in many collisions. To avoid this, increase
+ * the IPG and reduce Rx latency in the PHY.
+ */
+ if ((hw->mac.type >= e1000_pch2lan) && link) {
+ u16 speed, duplex;
+
+ e1000e_get_speed_and_duplex_copper(hw, &speed, &duplex);
+ tipg_reg = er32(TIPG);
+ tipg_reg &= ~E1000_TIPG_IPGT_MASK;
+
+ if (duplex == HALF_DUPLEX && speed == SPEED_10) {
+ tipg_reg |= 0xFF;
+ /* Reduce Rx latency in analog PHY */
+ emi_val = 0;
+ } else if (hw->mac.type >= e1000_pch_spt &&
+ duplex == FULL_DUPLEX && speed != SPEED_1000) {
+ tipg_reg |= 0xC;
+ emi_val = 1;
+ } else {
+ /* Roll back the default values */
+ tipg_reg |= 0x08;
+ emi_val = 1;
+ }
+
+ ew32(TIPG, tipg_reg);
+
+ ret_val = hw->phy.ops.acquire(hw);
+ if (ret_val)
+ return ret_val;
+
+ if (hw->mac.type == e1000_pch2lan)
+ emi_addr = I82579_RX_CONFIG;
+ else
+ emi_addr = I217_RX_CONFIG;
+ ret_val = e1000_write_emi_reg_locked(hw, emi_addr, emi_val);
+
+ if (hw->mac.type >= e1000_pch_lpt) {
+ e1e_rphy_locked(hw, I217_PLL_CLOCK_GATE_REG, &phy_reg);
+ phy_reg &= ~I217_PLL_CLOCK_GATE_MASK;
+ if (speed == SPEED_100 || speed == SPEED_10)
+ phy_reg |= 0x3E8;
+ else
+ phy_reg |= 0xFA;
+ e1e_wphy_locked(hw, I217_PLL_CLOCK_GATE_REG, phy_reg);
+
+ if (speed == SPEED_1000) {
+ e1e_rphy_locked(hw, HV_PM_CTRL, &phy_reg);
+
+ phy_reg |= HV_PM_CTRL_K1_CLK_REQ;
+
+ e1e_wphy_locked(hw, HV_PM_CTRL, phy_reg);
+ }
+ }
+ hw->phy.ops.release(hw);
+
+ if (ret_val)
+ return ret_val;
+
+ if (hw->mac.type >= e1000_pch_spt) {
+ u16 data;
+ u16 ptr_gap;
+
+ if (speed == SPEED_1000) {
+ ret_val = hw->phy.ops.acquire(hw);
+ if (ret_val)
+ return ret_val;
+
+ ret_val = e1e_rphy_locked(hw,
+ PHY_REG(776, 20),
+ &data);
+ if (ret_val) {
+ hw->phy.ops.release(hw);
+ return ret_val;
+ }
+
+ ptr_gap = (data & (0x3FF << 2)) >> 2;
+ if (ptr_gap < 0x18) {
+ data &= ~(0x3FF << 2);
+ data |= (0x18 << 2);
+ ret_val =
+ e1e_wphy_locked(hw,
+ PHY_REG(776, 20),
+ data);
+ }
+ hw->phy.ops.release(hw);
+ if (ret_val)
+ return ret_val;
+ } else {
+ ret_val = hw->phy.ops.acquire(hw);
+ if (ret_val)
+ return ret_val;
+
+ ret_val = e1e_wphy_locked(hw,
+ PHY_REG(776, 20),
+ 0xC023);
+ hw->phy.ops.release(hw);
+ if (ret_val)
+ return ret_val;
+
+ }
+ }
+ }
+
+ /* I217 Packet Loss issue:
+ * ensure that FEXTNVM4 Beacon Duration is set correctly
+ * on power up.
+ * Set the Beacon Duration for I217 to 8 usec
+ */
+ if (hw->mac.type >= e1000_pch_lpt) {
+ u32 mac_reg;
+
+ mac_reg = er32(FEXTNVM4);
+ mac_reg &= ~E1000_FEXTNVM4_BEACON_DURATION_MASK;
+ mac_reg |= E1000_FEXTNVM4_BEACON_DURATION_8USEC;
+ ew32(FEXTNVM4, mac_reg);
+ }
+
+ /* Work-around I218 hang issue */
+ if ((hw->adapter->pdev->device == E1000_DEV_ID_PCH_LPTLP_I218_LM) ||
+ (hw->adapter->pdev->device == E1000_DEV_ID_PCH_LPTLP_I218_V) ||
+ (hw->adapter->pdev->device == E1000_DEV_ID_PCH_I218_LM3) ||
+ (hw->adapter->pdev->device == E1000_DEV_ID_PCH_I218_V3)) {
+ ret_val = e1000_k1_workaround_lpt_lp(hw, link);
+ if (ret_val)
+ return ret_val;
+ }
+ if (hw->mac.type >= e1000_pch_lpt) {
+ /* Set platform power management values for
+ * Latency Tolerance Reporting (LTR)
+ */
+ ret_val = e1000_platform_pm_pch_lpt(hw, link);
+ if (ret_val)
+ return ret_val;
+ }
+
+ /* Clear link partner's EEE ability */
+ hw->dev_spec.ich8lan.eee_lp_ability = 0;
+
+ if (hw->mac.type >= e1000_pch_lpt) {
+ u32 fextnvm6 = er32(FEXTNVM6);
+
+ if (hw->mac.type == e1000_pch_spt) {
+ /* FEXTNVM6 K1-off workaround - for SPT only */
+ u32 pcieanacfg = er32(PCIEANACFG);
+
+ if (pcieanacfg & E1000_FEXTNVM6_K1_OFF_ENABLE)
+ fextnvm6 |= E1000_FEXTNVM6_K1_OFF_ENABLE;
+ else
+ fextnvm6 &= ~E1000_FEXTNVM6_K1_OFF_ENABLE;
+ }
+
+ if (hw->dev_spec.ich8lan.disable_k1_off == true)
+ fextnvm6 &= ~E1000_FEXTNVM6_K1_OFF_ENABLE;
+
+ ew32(FEXTNVM6, fextnvm6);
+ }
+
+ if (!link)
+ return 0; /* No link detected */
+
+ mac->get_link_status = false;
+
+ switch (hw->mac.type) {
+ case e1000_pch2lan:
+ ret_val = e1000_k1_workaround_lv(hw);
+ if (ret_val)
+ return ret_val;
+ /* fall-thru */
+ case e1000_pchlan:
+ if (hw->phy.type == e1000_phy_82578) {
+ ret_val = e1000_link_stall_workaround_hv(hw);
+ if (ret_val)
+ return ret_val;
+ }
+
+ /* Workaround for PCHx parts in half-duplex:
+ * Set the number of preambles removed from the packet
+ * when it is passed from the PHY to the MAC to prevent
+ * the MAC from misinterpreting the packet type.
+ */
+ e1e_rphy(hw, HV_KMRN_FIFO_CTRLSTA, &phy_reg);
+ phy_reg &= ~HV_KMRN_FIFO_CTRLSTA_PREAMBLE_MASK;
+
+ if ((er32(STATUS) & E1000_STATUS_FD) != E1000_STATUS_FD)
+ phy_reg |= (1 << HV_KMRN_FIFO_CTRLSTA_PREAMBLE_SHIFT);
+
+ e1e_wphy(hw, HV_KMRN_FIFO_CTRLSTA, phy_reg);
+ break;
+ default:
+ break;
+ }
+
+ /* Check if there was DownShift, must be checked
+ * immediately after link-up
+ */
+ e1000e_check_downshift(hw);
+
+ /* Enable/Disable EEE after link up */
+ if (hw->phy.type > e1000_phy_82579) {
+ ret_val = e1000_set_eee_pchlan(hw);
+ if (ret_val)
+ return ret_val;
+ }
+
+ /* If we are forcing speed/duplex, then we simply return since
+ * we have already determined whether we have link or not.
+ */
+ if (!mac->autoneg)
+ return -E1000_ERR_CONFIG;
+
+ /* Auto-Neg is enabled. Auto Speed Detection takes care
+ * of MAC speed/duplex configuration. So we only need to
+ * configure Collision Distance in the MAC.
+ */
+ mac->ops.config_collision_dist(hw);
+
+ /* Configure Flow Control now that Auto-Neg has completed.
+ * First, we need to restore the desired flow control
+ * settings because we may have had to re-autoneg with a
+ * different link partner.
+ */
+ ret_val = e1000e_config_fc_after_link_up(hw);
+ if (ret_val)
+ e_dbg("Error configuring flow control\n");
+
+ return ret_val;
+}
+
+static s32 e1000_get_variants_ich8lan(struct e1000_adapter *adapter)
+{
+ struct e1000_hw *hw = &adapter->hw;
+ s32 rc;
+
+ rc = e1000_init_mac_params_ich8lan(hw);
+ if (rc)
+ return rc;
+
+ rc = e1000_init_nvm_params_ich8lan(hw);
+ if (rc)
+ return rc;
+
+ switch (hw->mac.type) {
+ case e1000_ich8lan:
+ case e1000_ich9lan:
+ case e1000_ich10lan:
+ rc = e1000_init_phy_params_ich8lan(hw);
+ break;
+ case e1000_pchlan:
+ case e1000_pch2lan:
+ case e1000_pch_lpt:
+ case e1000_pch_spt:
+ case e1000_pch_cnp:
+ case e1000_pch_tgp:
+ case e1000_pch_adp:
+ rc = e1000_init_phy_params_pchlan(hw);
+ break;
+ default:
+ break;
+ }
+ if (rc)
+ return rc;
+
+ /* Disable Jumbo Frame support on parts with Intel 10/100 PHY or
+ * on parts with MACsec enabled in NVM (reflected in CTRL_EXT).
+ */
+ if ((adapter->hw.phy.type == e1000_phy_ife) ||
+ ((adapter->hw.mac.type >= e1000_pch2lan) &&
+ (!(er32(CTRL_EXT) & E1000_CTRL_EXT_LSECCK)))) {
+ adapter->flags &= ~FLAG_HAS_JUMBO_FRAMES;
+ adapter->max_hw_frame_size = VLAN_ETH_FRAME_LEN + ETH_FCS_LEN;
+
+ hw->mac.ops.blink_led = NULL;
+ }
+
+ if ((adapter->hw.mac.type == e1000_ich8lan) &&
+ (adapter->hw.phy.type != e1000_phy_ife))
+ adapter->flags |= FLAG_LSC_GIG_SPEED_DROP;
+
+ /* Enable workaround for 82579 w/ ME enabled */
+ if ((adapter->hw.mac.type == e1000_pch2lan) &&
+ (er32(FWSM) & E1000_ICH_FWSM_FW_VALID))
+ adapter->flags2 |= FLAG2_PCIM2PCI_ARBITER_WA;
+
+ return 0;
+}
+
+static DEFINE_MUTEX(nvm_mutex);
+
+/**
+ * e1000_acquire_nvm_ich8lan - Acquire NVM mutex
+ * @hw: pointer to the HW structure
+ *
+ * Acquires the mutex for performing NVM operations.
+ **/
+static s32 e1000_acquire_nvm_ich8lan(struct e1000_hw __always_unused *hw)
+{
+ mutex_lock(&nvm_mutex);
+
+ return 0;
+}
+
+/**
+ * e1000_release_nvm_ich8lan - Release NVM mutex
+ * @hw: pointer to the HW structure
+ *
+ * Releases the mutex used while performing NVM operations.
+ **/
+static void e1000_release_nvm_ich8lan(struct e1000_hw __always_unused *hw)
+{
+ mutex_unlock(&nvm_mutex);
+}
+
+/**
+ * e1000_acquire_swflag_ich8lan - Acquire software control flag
+ * @hw: pointer to the HW structure
+ *
+ * Acquires the software control flag for performing PHY and select
+ * MAC CSR accesses.
+ **/
+static s32 e1000_acquire_swflag_ich8lan(struct e1000_hw *hw)
+{
+ u32 extcnf_ctrl, timeout = PHY_CFG_TIMEOUT;
+ s32 ret_val = 0;
+
+ if (test_and_set_bit(__E1000_ACCESS_SHARED_RESOURCE,
+ &hw->adapter->state)) {
+ e_dbg("contention for Phy access\n");
+ return -E1000_ERR_PHY;
+ }
+
+ while (timeout) {
+ extcnf_ctrl = er32(EXTCNF_CTRL);
+ if (!(extcnf_ctrl & E1000_EXTCNF_CTRL_SWFLAG))
+ break;
+
+ mdelay(1);
+ timeout--;
+ }
+
+ if (!timeout) {
+ e_dbg("SW has already locked the resource.\n");
+ ret_val = -E1000_ERR_CONFIG;
+ goto out;
+ }
+
+ timeout = SW_FLAG_TIMEOUT;
+
+ extcnf_ctrl |= E1000_EXTCNF_CTRL_SWFLAG;
+ ew32(EXTCNF_CTRL, extcnf_ctrl);
+
+ while (timeout) {
+ extcnf_ctrl = er32(EXTCNF_CTRL);
+ if (extcnf_ctrl & E1000_EXTCNF_CTRL_SWFLAG)
+ break;
+
+ mdelay(1);
+ timeout--;
+ }
+
+ if (!timeout) {
+ e_dbg("Failed to acquire the semaphore, FW or HW has it: FWSM=0x%8.8x EXTCNF_CTRL=0x%8.8x)\n",
+ er32(FWSM), extcnf_ctrl);
+ extcnf_ctrl &= ~E1000_EXTCNF_CTRL_SWFLAG;
+ ew32(EXTCNF_CTRL, extcnf_ctrl);
+ ret_val = -E1000_ERR_CONFIG;
+ goto out;
+ }
+
+out:
+ if (ret_val)
+ clear_bit(__E1000_ACCESS_SHARED_RESOURCE, &hw->adapter->state);
+
+ return ret_val;
+}
+
+/**
+ * e1000_release_swflag_ich8lan - Release software control flag
+ * @hw: pointer to the HW structure
+ *
+ * Releases the software control flag for performing PHY and select
+ * MAC CSR accesses.
+ **/
+static void e1000_release_swflag_ich8lan(struct e1000_hw *hw)
+{
+ u32 extcnf_ctrl;
+
+ extcnf_ctrl = er32(EXTCNF_CTRL);
+
+ if (extcnf_ctrl & E1000_EXTCNF_CTRL_SWFLAG) {
+ extcnf_ctrl &= ~E1000_EXTCNF_CTRL_SWFLAG;
+ ew32(EXTCNF_CTRL, extcnf_ctrl);
+ } else {
+ e_dbg("Semaphore unexpectedly released by sw/fw/hw\n");
+ }
+
+ clear_bit(__E1000_ACCESS_SHARED_RESOURCE, &hw->adapter->state);
+}
+
+/**
+ * e1000_check_mng_mode_ich8lan - Checks management mode
+ * @hw: pointer to the HW structure
+ *
+ * This checks if the adapter has any manageability enabled.
+ * This is a function pointer entry point only called by read/write
+ * routines for the PHY and NVM parts.
+ **/
+static bool e1000_check_mng_mode_ich8lan(struct e1000_hw *hw)
+{
+ u32 fwsm;
+
+ fwsm = er32(FWSM);
+
+ return (fwsm & E1000_ICH_FWSM_FW_VALID) &&
+ ((fwsm & E1000_FWSM_MODE_MASK) ==
+ (E1000_ICH_MNG_IAMT_MODE << E1000_FWSM_MODE_SHIFT));
+}
+
+/**
+ * e1000_check_mng_mode_pchlan - Checks management mode
+ * @hw: pointer to the HW structure
+ *
+ * This checks if the adapter has iAMT enabled.
+ * This is a function pointer entry point only called by read/write
+ * routines for the PHY and NVM parts.
+ **/
+static bool e1000_check_mng_mode_pchlan(struct e1000_hw *hw)
+{
+ u32 fwsm;
+
+ fwsm = er32(FWSM);
+
+ return (fwsm & E1000_ICH_FWSM_FW_VALID) &&
+ (fwsm & (E1000_ICH_MNG_IAMT_MODE << E1000_FWSM_MODE_SHIFT));
+}
+
+/**
+ * e1000_rar_set_pch2lan - Set receive address register
+ * @hw: pointer to the HW structure
+ * @addr: pointer to the receive address
+ * @index: receive address array register
+ *
+ * Sets the receive address array register at index to the address passed
+ * in by addr. For 82579, RAR[0] is the base address register that is to
+ * contain the MAC address but RAR[1-6] are reserved for manageability (ME).
+ * Use SHRA[0-3] in place of those reserved for ME.
+ **/
+static int e1000_rar_set_pch2lan(struct e1000_hw *hw, u8 *addr, u32 index)
+{
+ u32 rar_low, rar_high;
+
+ /* HW expects these in little endian so we reverse the byte order
+ * from network order (big endian) to little endian
+ */
+ rar_low = ((u32)addr[0] |
+ ((u32)addr[1] << 8) |
+ ((u32)addr[2] << 16) | ((u32)addr[3] << 24));
+
+ rar_high = ((u32)addr[4] | ((u32)addr[5] << 8));
+
+ /* If MAC address zero, no need to set the AV bit */
+ if (rar_low || rar_high)
+ rar_high |= E1000_RAH_AV;
+
+ if (index == 0) {
+ ew32(RAL(index), rar_low);
+ e1e_flush();
+ ew32(RAH(index), rar_high);
+ e1e_flush();
+ return 0;
+ }
+
+ /* RAR[1-6] are owned by manageability. Skip those and program the
+ * next address into the SHRA register array.
+ */
+ if (index < (u32)(hw->mac.rar_entry_count)) {
+ s32 ret_val;
+
+ ret_val = e1000_acquire_swflag_ich8lan(hw);
+ if (ret_val)
+ goto out;
+
+ ew32(SHRAL(index - 1), rar_low);
+ e1e_flush();
+ ew32(SHRAH(index - 1), rar_high);
+ e1e_flush();
+
+ e1000_release_swflag_ich8lan(hw);
+
+ /* verify the register updates */
+ if ((er32(SHRAL(index - 1)) == rar_low) &&
+ (er32(SHRAH(index - 1)) == rar_high))
+ return 0;
+
+ e_dbg("SHRA[%d] might be locked by ME - FWSM=0x%8.8x\n",
+ (index - 1), er32(FWSM));
+ }
+
+out:
+ e_dbg("Failed to write receive address at index %d\n", index);
+ return -E1000_ERR_CONFIG;
+}
+
+/**
+ * e1000_rar_get_count_pch_lpt - Get the number of available SHRA
+ * @hw: pointer to the HW structure
+ *
+ * Get the number of available receive registers that the Host can
+ * program. SHRA[0-10] are the shared receive address registers
+ * that are shared between the Host and manageability engine (ME).
+ * ME can reserve any number of addresses and the host needs to be
+ * able to tell how many available registers it has access to.
+ **/
+static u32 e1000_rar_get_count_pch_lpt(struct e1000_hw *hw)
+{
+ u32 wlock_mac;
+ u32 num_entries;
+
+ wlock_mac = er32(FWSM) & E1000_FWSM_WLOCK_MAC_MASK;
+ wlock_mac >>= E1000_FWSM_WLOCK_MAC_SHIFT;
+
+ switch (wlock_mac) {
+ case 0:
+ /* All SHRA[0..10] and RAR[0] available */
+ num_entries = hw->mac.rar_entry_count;
+ break;
+ case 1:
+ /* Only RAR[0] available */
+ num_entries = 1;
+ break;
+ default:
+ /* SHRA[0..(wlock_mac - 1)] available + RAR[0] */
+ num_entries = wlock_mac + 1;
+ break;
+ }
+
+ return num_entries;
+}
+
+/**
+ * e1000_rar_set_pch_lpt - Set receive address registers
+ * @hw: pointer to the HW structure
+ * @addr: pointer to the receive address
+ * @index: receive address array register
+ *
+ * Sets the receive address register array at index to the address passed
+ * in by addr. For LPT, RAR[0] is the base address register that is to
+ * contain the MAC address. SHRA[0-10] are the shared receive address
+ * registers that are shared between the Host and manageability engine (ME).
+ **/
+static int e1000_rar_set_pch_lpt(struct e1000_hw *hw, u8 *addr, u32 index)
+{
+ u32 rar_low, rar_high;
+ u32 wlock_mac;
+
+ /* HW expects these in little endian so we reverse the byte order
+ * from network order (big endian) to little endian
+ */
+ rar_low = ((u32)addr[0] | ((u32)addr[1] << 8) |
+ ((u32)addr[2] << 16) | ((u32)addr[3] << 24));
+
+ rar_high = ((u32)addr[4] | ((u32)addr[5] << 8));
+
+ /* If MAC address zero, no need to set the AV bit */
+ if (rar_low || rar_high)
+ rar_high |= E1000_RAH_AV;
+
+ if (index == 0) {
+ ew32(RAL(index), rar_low);
+ e1e_flush();
+ ew32(RAH(index), rar_high);
+ e1e_flush();
+ return 0;
+ }
+
+ /* The manageability engine (ME) can lock certain SHRAR registers that
+ * it is using - those registers are unavailable for use.
+ */
+ if (index < hw->mac.rar_entry_count) {
+ wlock_mac = er32(FWSM) & E1000_FWSM_WLOCK_MAC_MASK;
+ wlock_mac >>= E1000_FWSM_WLOCK_MAC_SHIFT;
+
+ /* Check if all SHRAR registers are locked */
+ if (wlock_mac == 1)
+ goto out;
+
+ if ((wlock_mac == 0) || (index <= wlock_mac)) {
+ s32 ret_val;
+
+ ret_val = e1000_acquire_swflag_ich8lan(hw);
+
+ if (ret_val)
+ goto out;
+
+ ew32(SHRAL_PCH_LPT(index - 1), rar_low);
+ e1e_flush();
+ ew32(SHRAH_PCH_LPT(index - 1), rar_high);
+ e1e_flush();
+
+ e1000_release_swflag_ich8lan(hw);
+
+ /* verify the register updates */
+ if ((er32(SHRAL_PCH_LPT(index - 1)) == rar_low) &&
+ (er32(SHRAH_PCH_LPT(index - 1)) == rar_high))
+ return 0;
+ }
+ }
+
+out:
+ e_dbg("Failed to write receive address at index %d\n", index);
+ return -E1000_ERR_CONFIG;
+}
+
+/**
+ * e1000_check_reset_block_ich8lan - Check if PHY reset is blocked
+ * @hw: pointer to the HW structure
+ *
+ * Checks if firmware is blocking the reset of the PHY.
+ * This is a function pointer entry point only called by
+ * reset routines.
+ **/
+static s32 e1000_check_reset_block_ich8lan(struct e1000_hw *hw)
+{
+ bool blocked = false;
+ int i = 0;
+
+ while ((blocked = !(er32(FWSM) & E1000_ICH_FWSM_RSPCIPHY)) &&
+ (i++ < 30))
+ usleep_range(10000, 20000);
+ return blocked ? E1000_BLK_PHY_RESET : 0;
+}
+
+/**
+ * e1000_write_smbus_addr - Write SMBus address to PHY needed during Sx states
+ * @hw: pointer to the HW structure
+ *
+ * Assumes semaphore already acquired.
+ *
+ **/
+static s32 e1000_write_smbus_addr(struct e1000_hw *hw)
+{
+ u16 phy_data;
+ u32 strap = er32(STRAP);
+ u32 freq = (strap & E1000_STRAP_SMT_FREQ_MASK) >>
+ E1000_STRAP_SMT_FREQ_SHIFT;
+ s32 ret_val;
+
+ strap &= E1000_STRAP_SMBUS_ADDRESS_MASK;
+
+ ret_val = e1000_read_phy_reg_hv_locked(hw, HV_SMB_ADDR, &phy_data);
+ if (ret_val)
+ return ret_val;
+
+ phy_data &= ~HV_SMB_ADDR_MASK;
+ phy_data |= (strap >> E1000_STRAP_SMBUS_ADDRESS_SHIFT);
+ phy_data |= HV_SMB_ADDR_PEC_EN | HV_SMB_ADDR_VALID;
+
+ if (hw->phy.type == e1000_phy_i217) {
+ /* Restore SMBus frequency */
+ if (freq--) {
+ phy_data &= ~HV_SMB_ADDR_FREQ_MASK;
+ phy_data |= (freq & (1 << 0)) <<
+ HV_SMB_ADDR_FREQ_LOW_SHIFT;
+ phy_data |= (freq & (1 << 1)) <<
+ (HV_SMB_ADDR_FREQ_HIGH_SHIFT - 1);
+ } else {
+ e_dbg("Unsupported SMB frequency in PHY\n");
+ }
+ }
+
+ return e1000_write_phy_reg_hv_locked(hw, HV_SMB_ADDR, phy_data);
+}
+
+/**
+ * e1000_sw_lcd_config_ich8lan - SW-based LCD Configuration
+ * @hw: pointer to the HW structure
+ *
+ * SW should configure the LCD from the NVM extended configuration region
+ * as a workaround for certain parts.
+ **/
+static s32 e1000_sw_lcd_config_ich8lan(struct e1000_hw *hw)
+{
+ struct e1000_phy_info *phy = &hw->phy;
+ u32 i, data, cnf_size, cnf_base_addr, sw_cfg_mask;
+ s32 ret_val = 0;
+ u16 word_addr, reg_data, reg_addr, phy_page = 0;
+
+ /* Initialize the PHY from the NVM on ICH platforms. This
+ * is needed due to an issue where the NVM configuration is
+ * not properly autoloaded after power transitions.
+ * Therefore, after each PHY reset, we will load the
+ * configuration data out of the NVM manually.
+ */
+ switch (hw->mac.type) {
+ case e1000_ich8lan:
+ if (phy->type != e1000_phy_igp_3)
+ return ret_val;
+
+ if ((hw->adapter->pdev->device == E1000_DEV_ID_ICH8_IGP_AMT) ||
+ (hw->adapter->pdev->device == E1000_DEV_ID_ICH8_IGP_C)) {
+ sw_cfg_mask = E1000_FEXTNVM_SW_CONFIG;
+ break;
+ }
+ /* Fall-thru */
+ case e1000_pchlan:
+ case e1000_pch2lan:
+ case e1000_pch_lpt:
+ case e1000_pch_spt:
+ case e1000_pch_cnp:
+ case e1000_pch_tgp:
+ case e1000_pch_adp:
+ sw_cfg_mask = E1000_FEXTNVM_SW_CONFIG_ICH8M;
+ break;
+ default:
+ return ret_val;
+ }
+
+ ret_val = hw->phy.ops.acquire(hw);
+ if (ret_val)
+ return ret_val;
+
+ data = er32(FEXTNVM);
+ if (!(data & sw_cfg_mask))
+ goto release;
+
+ /* Make sure HW does not configure LCD from PHY
+ * extended configuration before SW configuration
+ */
+ data = er32(EXTCNF_CTRL);
+ if ((hw->mac.type < e1000_pch2lan) &&
+ (data & E1000_EXTCNF_CTRL_LCD_WRITE_ENABLE))
+ goto release;
+
+ cnf_size = er32(EXTCNF_SIZE);
+ cnf_size &= E1000_EXTCNF_SIZE_EXT_PCIE_LENGTH_MASK;
+ cnf_size >>= E1000_EXTCNF_SIZE_EXT_PCIE_LENGTH_SHIFT;
+ if (!cnf_size)
+ goto release;
+
+ cnf_base_addr = data & E1000_EXTCNF_CTRL_EXT_CNF_POINTER_MASK;
+ cnf_base_addr >>= E1000_EXTCNF_CTRL_EXT_CNF_POINTER_SHIFT;
+
+ if (((hw->mac.type == e1000_pchlan) &&
+ !(data & E1000_EXTCNF_CTRL_OEM_WRITE_ENABLE)) ||
+ (hw->mac.type > e1000_pchlan)) {
+ /* HW configures the SMBus address and LEDs when the
+ * OEM and LCD Write Enable bits are set in the NVM.
+ * When both NVM bits are cleared, SW will configure
+ * them instead.
+ */
+ ret_val = e1000_write_smbus_addr(hw);
+ if (ret_val)
+ goto release;
+
+ data = er32(LEDCTL);
+ ret_val = e1000_write_phy_reg_hv_locked(hw, HV_LED_CONFIG,
+ (u16)data);
+ if (ret_val)
+ goto release;
+ }
+
+ /* Configure LCD from extended configuration region. */
+
+ /* cnf_base_addr is in DWORD */
+ word_addr = (u16)(cnf_base_addr << 1);
+
+ for (i = 0; i < cnf_size; i++) {
+ ret_val = e1000_read_nvm(hw, (word_addr + i * 2), 1, &reg_data);
+ if (ret_val)
+ goto release;
+
+ ret_val = e1000_read_nvm(hw, (word_addr + i * 2 + 1),
+ 1, &reg_addr);
+ if (ret_val)
+ goto release;
+
+ /* Save off the PHY page for future writes. */
+ if (reg_addr == IGP01E1000_PHY_PAGE_SELECT) {
+ phy_page = reg_data;
+ continue;
+ }
+
+ reg_addr &= PHY_REG_MASK;
+ reg_addr |= phy_page;
+
+ ret_val = e1e_wphy_locked(hw, (u32)reg_addr, reg_data);
+ if (ret_val)
+ goto release;
+ }
+
+release:
+ hw->phy.ops.release(hw);
+ return ret_val;
+}
+
+/**
+ * e1000_k1_gig_workaround_hv - K1 Si workaround
+ * @hw: pointer to the HW structure
+ * @link: link up bool flag
+ *
+ * If K1 is enabled for 1Gbps, the MAC might stall when transitioning
+ * from a lower speed. This workaround disables K1 whenever link is at 1Gig
+ * If link is down, the function will restore the default K1 setting located
+ * in the NVM.
+ **/
+static s32 e1000_k1_gig_workaround_hv(struct e1000_hw *hw, bool link)
+{
+ s32 ret_val = 0;
+ u16 status_reg = 0;
+ bool k1_enable = hw->dev_spec.ich8lan.nvm_k1_enabled;
+
+ if (hw->mac.type != e1000_pchlan)
+ return 0;
+
+ /* Wrap the whole flow with the sw flag */
+ ret_val = hw->phy.ops.acquire(hw);
+ if (ret_val)
+ return ret_val;
+
+ /* Disable K1 when link is 1Gbps, otherwise use the NVM setting */
+ if (link) {
+ if (hw->phy.type == e1000_phy_82578) {
+ ret_val = e1e_rphy_locked(hw, BM_CS_STATUS,
+ &status_reg);
+ if (ret_val)
+ goto release;
+
+ status_reg &= (BM_CS_STATUS_LINK_UP |
+ BM_CS_STATUS_RESOLVED |
+ BM_CS_STATUS_SPEED_MASK);
+
+ if (status_reg == (BM_CS_STATUS_LINK_UP |
+ BM_CS_STATUS_RESOLVED |
+ BM_CS_STATUS_SPEED_1000))
+ k1_enable = false;
+ }
+
+ if (hw->phy.type == e1000_phy_82577) {
+ ret_val = e1e_rphy_locked(hw, HV_M_STATUS, &status_reg);
+ if (ret_val)
+ goto release;
+
+ status_reg &= (HV_M_STATUS_LINK_UP |
+ HV_M_STATUS_AUTONEG_COMPLETE |
+ HV_M_STATUS_SPEED_MASK);
+
+ if (status_reg == (HV_M_STATUS_LINK_UP |
+ HV_M_STATUS_AUTONEG_COMPLETE |
+ HV_M_STATUS_SPEED_1000))
+ k1_enable = false;
+ }
+
+ /* Link stall fix for link up */
+ ret_val = e1e_wphy_locked(hw, PHY_REG(770, 19), 0x0100);
+ if (ret_val)
+ goto release;
+
+ } else {
+ /* Link stall fix for link down */
+ ret_val = e1e_wphy_locked(hw, PHY_REG(770, 19), 0x4100);
+ if (ret_val)
+ goto release;
+ }
+
+ ret_val = e1000_configure_k1_ich8lan(hw, k1_enable);
+
+release:
+ hw->phy.ops.release(hw);
+
+ return ret_val;
+}
+
+/**
+ * e1000_configure_k1_ich8lan - Configure K1 power state
+ * @hw: pointer to the HW structure
+ * @k1_enable: K1 state to configure
+ *
+ * Configure the K1 power state based on the provided parameter.
+ * Assumes semaphore already acquired.
+ *
+ * Success returns 0, Failure returns -E1000_ERR_PHY (-2)
+ **/
+s32 e1000_configure_k1_ich8lan(struct e1000_hw *hw, bool k1_enable)
+{
+ s32 ret_val;
+ u32 ctrl_reg = 0;
+ u32 ctrl_ext = 0;
+ u32 reg = 0;
+ u16 kmrn_reg = 0;
+
+ ret_val = e1000e_read_kmrn_reg_locked(hw, E1000_KMRNCTRLSTA_K1_CONFIG,
+ &kmrn_reg);
+ if (ret_val)
+ return ret_val;
+
+ if (k1_enable)
+ kmrn_reg |= E1000_KMRNCTRLSTA_K1_ENABLE;
+ else
+ kmrn_reg &= ~E1000_KMRNCTRLSTA_K1_ENABLE;
+
+ ret_val = e1000e_write_kmrn_reg_locked(hw, E1000_KMRNCTRLSTA_K1_CONFIG,
+ kmrn_reg);
+ if (ret_val)
+ return ret_val;
+
+ usleep_range(20, 40);
+ ctrl_ext = er32(CTRL_EXT);
+ ctrl_reg = er32(CTRL);
+
+ reg = ctrl_reg & ~(E1000_CTRL_SPD_1000 | E1000_CTRL_SPD_100);
+ reg |= E1000_CTRL_FRCSPD;
+ ew32(CTRL, reg);
+
+ ew32(CTRL_EXT, ctrl_ext | E1000_CTRL_EXT_SPD_BYPS);
+ e1e_flush();
+ usleep_range(20, 40);
+ ew32(CTRL, ctrl_reg);
+ ew32(CTRL_EXT, ctrl_ext);
+ e1e_flush();
+ usleep_range(20, 40);
+
+ return 0;
+}
+
+/**
+ * e1000_oem_bits_config_ich8lan - SW-based LCD Configuration
+ * @hw: pointer to the HW structure
+ * @d0_state: boolean if entering d0 or d3 device state
+ *
+ * SW will configure Gbe Disable and LPLU based on the NVM. The four bits are
+ * collectively called OEM bits. The OEM Write Enable bit and SW Config bit
+ * in NVM determines whether HW should configure LPLU and Gbe Disable.
+ **/
+static s32 e1000_oem_bits_config_ich8lan(struct e1000_hw *hw, bool d0_state)
+{
+ s32 ret_val = 0;
+ u32 mac_reg;
+ u16 oem_reg;
+
+ if (hw->mac.type < e1000_pchlan)
+ return ret_val;
+
+ ret_val = hw->phy.ops.acquire(hw);
+ if (ret_val)
+ return ret_val;
+
+ if (hw->mac.type == e1000_pchlan) {
+ mac_reg = er32(EXTCNF_CTRL);
+ if (mac_reg & E1000_EXTCNF_CTRL_OEM_WRITE_ENABLE)
+ goto release;
+ }
+
+ mac_reg = er32(FEXTNVM);
+ if (!(mac_reg & E1000_FEXTNVM_SW_CONFIG_ICH8M))
+ goto release;
+
+ mac_reg = er32(PHY_CTRL);
+
+ ret_val = e1e_rphy_locked(hw, HV_OEM_BITS, &oem_reg);
+ if (ret_val)
+ goto release;
+
+ oem_reg &= ~(HV_OEM_BITS_GBE_DIS | HV_OEM_BITS_LPLU);
+
+ if (d0_state) {
+ if (mac_reg & E1000_PHY_CTRL_GBE_DISABLE)
+ oem_reg |= HV_OEM_BITS_GBE_DIS;
+
+ if (mac_reg & E1000_PHY_CTRL_D0A_LPLU)
+ oem_reg |= HV_OEM_BITS_LPLU;
+ } else {
+ if (mac_reg & (E1000_PHY_CTRL_GBE_DISABLE |
+ E1000_PHY_CTRL_NOND0A_GBE_DISABLE))
+ oem_reg |= HV_OEM_BITS_GBE_DIS;
+
+ if (mac_reg & (E1000_PHY_CTRL_D0A_LPLU |
+ E1000_PHY_CTRL_NOND0A_LPLU))
+ oem_reg |= HV_OEM_BITS_LPLU;
+ }
+
+ /* Set Restart auto-neg to activate the bits */
+ if ((d0_state || (hw->mac.type != e1000_pchlan)) &&
+ !hw->phy.ops.check_reset_block(hw))
+ oem_reg |= HV_OEM_BITS_RESTART_AN;
+
+ ret_val = e1e_wphy_locked(hw, HV_OEM_BITS, oem_reg);
+
+release:
+ hw->phy.ops.release(hw);
+
+ return ret_val;
+}
+
+/**
+ * e1000_set_mdio_slow_mode_hv - Set slow MDIO access mode
+ * @hw: pointer to the HW structure
+ **/
+static s32 e1000_set_mdio_slow_mode_hv(struct e1000_hw *hw)
+{
+ s32 ret_val;
+ u16 data;
+
+ ret_val = e1e_rphy(hw, HV_KMRN_MODE_CTRL, &data);
+ if (ret_val)
+ return ret_val;
+
+ data |= HV_KMRN_MDIO_SLOW;
+
+ ret_val = e1e_wphy(hw, HV_KMRN_MODE_CTRL, data);
+
+ return ret_val;
+}
+
+/**
+ * e1000_hv_phy_workarounds_ich8lan - A series of Phy workarounds to be
+ * done after every PHY reset.
+ * @hw: pointer to the HW structure
+ **/
+static s32 e1000_hv_phy_workarounds_ich8lan(struct e1000_hw *hw)
+{
+ s32 ret_val = 0;
+ u16 phy_data;
+
+ if (hw->mac.type != e1000_pchlan)
+ return 0;
+
+ /* Set MDIO slow mode before any other MDIO access */
+ if (hw->phy.type == e1000_phy_82577) {
+ ret_val = e1000_set_mdio_slow_mode_hv(hw);
+ if (ret_val)
+ return ret_val;
+ }
+
+ if (((hw->phy.type == e1000_phy_82577) &&
+ ((hw->phy.revision == 1) || (hw->phy.revision == 2))) ||
+ ((hw->phy.type == e1000_phy_82578) && (hw->phy.revision == 1))) {
+ /* Disable generation of early preamble */
+ ret_val = e1e_wphy(hw, PHY_REG(769, 25), 0x4431);
+ if (ret_val)
+ return ret_val;
+
+ /* Preamble tuning for SSC */
+ ret_val = e1e_wphy(hw, HV_KMRN_FIFO_CTRLSTA, 0xA204);
+ if (ret_val)
+ return ret_val;
+ }
+
+ if (hw->phy.type == e1000_phy_82578) {
+ /* Return registers to default by doing a soft reset then
+ * writing 0x3140 to the control register.
+ */
+ if (hw->phy.revision < 2) {
+ e1000e_phy_sw_reset(hw);
+ ret_val = e1e_wphy(hw, MII_BMCR, 0x3140);
+ }
+ }
+
+ /* Select page 0 */
+ ret_val = hw->phy.ops.acquire(hw);
+ if (ret_val)
+ return ret_val;
+
+ hw->phy.addr = 1;
+ ret_val = e1000e_write_phy_reg_mdic(hw, IGP01E1000_PHY_PAGE_SELECT, 0);
+ hw->phy.ops.release(hw);
+ if (ret_val)
+ return ret_val;
+
+ /* Configure the K1 Si workaround during phy reset assuming there is
+ * link so that it disables K1 if link is in 1Gbps.
+ */
+ ret_val = e1000_k1_gig_workaround_hv(hw, true);
+ if (ret_val)
+ return ret_val;
+
+ /* Workaround for link disconnects on a busy hub in half duplex */
+ ret_val = hw->phy.ops.acquire(hw);
+ if (ret_val)
+ return ret_val;
+ ret_val = e1e_rphy_locked(hw, BM_PORT_GEN_CFG, &phy_data);
+ if (ret_val)
+ goto release;
+ ret_val = e1e_wphy_locked(hw, BM_PORT_GEN_CFG, phy_data & 0x00FF);
+ if (ret_val)
+ goto release;
+
+ /* set MSE higher to enable link to stay up when noise is high */
+ ret_val = e1000_write_emi_reg_locked(hw, I82577_MSE_THRESHOLD, 0x0034);
+release:
+ hw->phy.ops.release(hw);
+
+ return ret_val;
+}
+
+/**
+ * e1000_copy_rx_addrs_to_phy_ich8lan - Copy Rx addresses from MAC to PHY
+ * @hw: pointer to the HW structure
+ **/
+void e1000_copy_rx_addrs_to_phy_ich8lan(struct e1000_hw *hw)
+{
+ u32 mac_reg;
+ u16 i, phy_reg = 0;
+ s32 ret_val;
+
+ ret_val = hw->phy.ops.acquire(hw);
+ if (ret_val)
+ return;
+ ret_val = e1000_enable_phy_wakeup_reg_access_bm(hw, &phy_reg);
+ if (ret_val)
+ goto release;
+
+ /* Copy both RAL/H (rar_entry_count) and SHRAL/H to PHY */
+ for (i = 0; i < (hw->mac.rar_entry_count); i++) {
+ mac_reg = er32(RAL(i));
+ hw->phy.ops.write_reg_page(hw, BM_RAR_L(i),
+ (u16)(mac_reg & 0xFFFF));
+ hw->phy.ops.write_reg_page(hw, BM_RAR_M(i),
+ (u16)((mac_reg >> 16) & 0xFFFF));
+
+ mac_reg = er32(RAH(i));
+ hw->phy.ops.write_reg_page(hw, BM_RAR_H(i),
+ (u16)(mac_reg & 0xFFFF));
+ hw->phy.ops.write_reg_page(hw, BM_RAR_CTRL(i),
+ (u16)((mac_reg & E1000_RAH_AV)
+ >> 16));
+ }
+
+ e1000_disable_phy_wakeup_reg_access_bm(hw, &phy_reg);
+
+release:
+ hw->phy.ops.release(hw);
+}
+
+/**
+ * e1000_lv_jumbo_workaround_ich8lan - required for jumbo frame operation
+ * with 82579 PHY
+ * @hw: pointer to the HW structure
+ * @enable: flag to enable/disable workaround when enabling/disabling jumbos
+ **/
+s32 e1000_lv_jumbo_workaround_ich8lan(struct e1000_hw *hw, bool enable)
+{
+ s32 ret_val = 0;
+ u16 phy_reg, data;
+ u32 mac_reg;
+ u16 i;
+
+ if (hw->mac.type < e1000_pch2lan)
+ return 0;
+
+ /* disable Rx path while enabling/disabling workaround */
+ e1e_rphy(hw, PHY_REG(769, 20), &phy_reg);
+ ret_val = e1e_wphy(hw, PHY_REG(769, 20), phy_reg | (1 << 14));
+ if (ret_val)
+ return ret_val;
+
+ if (enable) {
+ /* Write Rx addresses (rar_entry_count for RAL/H, and
+ * SHRAL/H) and initial CRC values to the MAC
+ */
+ for (i = 0; i < hw->mac.rar_entry_count; i++) {
+ u8 mac_addr[ETH_ALEN] = { 0 };
+ u32 addr_high, addr_low;
+
+ addr_high = er32(RAH(i));
+ if (!(addr_high & E1000_RAH_AV))
+ continue;
+ addr_low = er32(RAL(i));
+ mac_addr[0] = (addr_low & 0xFF);
+ mac_addr[1] = ((addr_low >> 8) & 0xFF);
+ mac_addr[2] = ((addr_low >> 16) & 0xFF);
+ mac_addr[3] = ((addr_low >> 24) & 0xFF);
+ mac_addr[4] = (addr_high & 0xFF);
+ mac_addr[5] = ((addr_high >> 8) & 0xFF);
+
+ ew32(PCH_RAICC(i), ~ether_crc_le(ETH_ALEN, mac_addr));
+ }
+
+ /* Write Rx addresses to the PHY */
+ e1000_copy_rx_addrs_to_phy_ich8lan(hw);
+
+ /* Enable jumbo frame workaround in the MAC */
+ mac_reg = er32(FFLT_DBG);
+ mac_reg &= ~(1 << 14);
+ mac_reg |= (7 << 15);
+ ew32(FFLT_DBG, mac_reg);
+
+ mac_reg = er32(RCTL);
+ mac_reg |= E1000_RCTL_SECRC;
+ ew32(RCTL, mac_reg);
+
+ ret_val = e1000e_read_kmrn_reg(hw,
+ E1000_KMRNCTRLSTA_CTRL_OFFSET,
+ &data);
+ if (ret_val)
+ return ret_val;
+ ret_val = e1000e_write_kmrn_reg(hw,
+ E1000_KMRNCTRLSTA_CTRL_OFFSET,
+ data | (1 << 0));
+ if (ret_val)
+ return ret_val;
+ ret_val = e1000e_read_kmrn_reg(hw,
+ E1000_KMRNCTRLSTA_HD_CTRL,
+ &data);
+ if (ret_val)
+ return ret_val;
+ data &= ~(0xF << 8);
+ data |= (0xB << 8);
+ ret_val = e1000e_write_kmrn_reg(hw,
+ E1000_KMRNCTRLSTA_HD_CTRL,
+ data);
+ if (ret_val)
+ return ret_val;
+
+ /* Enable jumbo frame workaround in the PHY */
+ e1e_rphy(hw, PHY_REG(769, 23), &data);
+ data &= ~(0x7F << 5);
+ data |= (0x37 << 5);
+ ret_val = e1e_wphy(hw, PHY_REG(769, 23), data);
+ if (ret_val)
+ return ret_val;
+ e1e_rphy(hw, PHY_REG(769, 16), &data);
+ data &= ~(1 << 13);
+ ret_val = e1e_wphy(hw, PHY_REG(769, 16), data);
+ if (ret_val)
+ return ret_val;
+ e1e_rphy(hw, PHY_REG(776, 20), &data);
+ data &= ~(0x3FF << 2);
+ data |= (E1000_TX_PTR_GAP << 2);
+ ret_val = e1e_wphy(hw, PHY_REG(776, 20), data);
+ if (ret_val)
+ return ret_val;
+ ret_val = e1e_wphy(hw, PHY_REG(776, 23), 0xF100);
+ if (ret_val)
+ return ret_val;
+ e1e_rphy(hw, HV_PM_CTRL, &data);
+ ret_val = e1e_wphy(hw, HV_PM_CTRL, data | (1 << 10));
+ if (ret_val)
+ return ret_val;
+ } else {
+ /* Write MAC register values back to h/w defaults */
+ mac_reg = er32(FFLT_DBG);
+ mac_reg &= ~(0xF << 14);
+ ew32(FFLT_DBG, mac_reg);
+
+ mac_reg = er32(RCTL);
+ mac_reg &= ~E1000_RCTL_SECRC;
+ ew32(RCTL, mac_reg);
+
+ ret_val = e1000e_read_kmrn_reg(hw,
+ E1000_KMRNCTRLSTA_CTRL_OFFSET,
+ &data);
+ if (ret_val)
+ return ret_val;
+ ret_val = e1000e_write_kmrn_reg(hw,
+ E1000_KMRNCTRLSTA_CTRL_OFFSET,
+ data & ~(1 << 0));
+ if (ret_val)
+ return ret_val;
+ ret_val = e1000e_read_kmrn_reg(hw,
+ E1000_KMRNCTRLSTA_HD_CTRL,
+ &data);
+ if (ret_val)
+ return ret_val;
+ data &= ~(0xF << 8);
+ data |= (0xB << 8);
+ ret_val = e1000e_write_kmrn_reg(hw,
+ E1000_KMRNCTRLSTA_HD_CTRL,
+ data);
+ if (ret_val)
+ return ret_val;
+
+ /* Write PHY register values back to h/w defaults */
+ e1e_rphy(hw, PHY_REG(769, 23), &data);
+ data &= ~(0x7F << 5);
+ ret_val = e1e_wphy(hw, PHY_REG(769, 23), data);
+ if (ret_val)
+ return ret_val;
+ e1e_rphy(hw, PHY_REG(769, 16), &data);
+ data |= (1 << 13);
+ ret_val = e1e_wphy(hw, PHY_REG(769, 16), data);
+ if (ret_val)
+ return ret_val;
+ e1e_rphy(hw, PHY_REG(776, 20), &data);
+ data &= ~(0x3FF << 2);
+ data |= (0x8 << 2);
+ ret_val = e1e_wphy(hw, PHY_REG(776, 20), data);
+ if (ret_val)
+ return ret_val;
+ ret_val = e1e_wphy(hw, PHY_REG(776, 23), 0x7E00);
+ if (ret_val)
+ return ret_val;
+ e1e_rphy(hw, HV_PM_CTRL, &data);
+ ret_val = e1e_wphy(hw, HV_PM_CTRL, data & ~(1 << 10));
+ if (ret_val)
+ return ret_val;
+ }
+
+ /* re-enable Rx path after enabling/disabling workaround */
+ return e1e_wphy(hw, PHY_REG(769, 20), phy_reg & ~(1 << 14));
+}
+
+/**
+ * e1000_lv_phy_workarounds_ich8lan - A series of Phy workarounds to be
+ * done after every PHY reset.
+ * @hw: pointer to the HW structure
+ **/
+static s32 e1000_lv_phy_workarounds_ich8lan(struct e1000_hw *hw)
+{
+ s32 ret_val = 0;
+
+ if (hw->mac.type != e1000_pch2lan)
+ return 0;
+
+ /* Set MDIO slow mode before any other MDIO access */
+ ret_val = e1000_set_mdio_slow_mode_hv(hw);
+ if (ret_val)
+ return ret_val;
+
+ ret_val = hw->phy.ops.acquire(hw);
+ if (ret_val)
+ return ret_val;
+ /* set MSE higher to enable link to stay up when noise is high */
+ ret_val = e1000_write_emi_reg_locked(hw, I82579_MSE_THRESHOLD, 0x0034);
+ if (ret_val)
+ goto release;
+ /* drop link after 5 times MSE threshold was reached */
+ ret_val = e1000_write_emi_reg_locked(hw, I82579_MSE_LINK_DOWN, 0x0005);
+release:
+ hw->phy.ops.release(hw);
+
+ return ret_val;
+}
+
+/**
+ * e1000_k1_gig_workaround_lv - K1 Si workaround
+ * @hw: pointer to the HW structure
+ *
+ * Workaround to set the K1 beacon duration for 82579 parts in 10Mbps
+ * Disable K1 in 1000Mbps and 100Mbps
+ **/
+static s32 e1000_k1_workaround_lv(struct e1000_hw *hw)
+{
+ s32 ret_val = 0;
+ u16 status_reg = 0;
+
+ if (hw->mac.type != e1000_pch2lan)
+ return 0;
+
+ /* Set K1 beacon duration based on 10Mbs speed */
+ ret_val = e1e_rphy(hw, HV_M_STATUS, &status_reg);
+ if (ret_val)
+ return ret_val;
+
+ if ((status_reg & (HV_M_STATUS_LINK_UP | HV_M_STATUS_AUTONEG_COMPLETE))
+ == (HV_M_STATUS_LINK_UP | HV_M_STATUS_AUTONEG_COMPLETE)) {
+ if (status_reg &
+ (HV_M_STATUS_SPEED_1000 | HV_M_STATUS_SPEED_100)) {
+ u16 pm_phy_reg;
+
+ /* LV 1G/100 Packet drop issue wa */
+ ret_val = e1e_rphy(hw, HV_PM_CTRL, &pm_phy_reg);
+ if (ret_val)
+ return ret_val;
+ pm_phy_reg &= ~HV_PM_CTRL_K1_ENABLE;
+ ret_val = e1e_wphy(hw, HV_PM_CTRL, pm_phy_reg);
+ if (ret_val)
+ return ret_val;
+ } else {
+ u32 mac_reg;
+ mac_reg = er32(FEXTNVM4);
+ mac_reg &= ~E1000_FEXTNVM4_BEACON_DURATION_MASK;
+ mac_reg |= E1000_FEXTNVM4_BEACON_DURATION_16USEC;
+ ew32(FEXTNVM4, mac_reg);
+ }
+ }
+
+ return ret_val;
+}
+
+/**
+ * e1000_gate_hw_phy_config_ich8lan - disable PHY config via hardware
+ * @hw: pointer to the HW structure
+ * @gate: boolean set to true to gate, false to ungate
+ *
+ * Gate/ungate the automatic PHY configuration via hardware; perform
+ * the configuration via software instead.
+ **/
+static void e1000_gate_hw_phy_config_ich8lan(struct e1000_hw *hw, bool gate)
+{
+ u32 extcnf_ctrl;
+
+ if (hw->mac.type < e1000_pch2lan)
+ return;
+
+ extcnf_ctrl = er32(EXTCNF_CTRL);
+
+ if (gate)
+ extcnf_ctrl |= E1000_EXTCNF_CTRL_GATE_PHY_CFG;
+ else
+ extcnf_ctrl &= ~E1000_EXTCNF_CTRL_GATE_PHY_CFG;
+
+ ew32(EXTCNF_CTRL, extcnf_ctrl);
+}
+
+/**
+ * e1000_lan_init_done_ich8lan - Check for PHY config completion
+ * @hw: pointer to the HW structure
+ *
+ * Check the appropriate indication the MAC has finished configuring the
+ * PHY after a software reset.
+ **/
+static void e1000_lan_init_done_ich8lan(struct e1000_hw *hw)
+{
+ u32 data, loop = E1000_ICH8_LAN_INIT_TIMEOUT;
+
+ /* Wait for basic configuration completes before proceeding */
+ do {
+ data = er32(STATUS);
+ data &= E1000_STATUS_LAN_INIT_DONE;
+ usleep_range(100, 200);
+ } while ((!data) && --loop);
+
+ /* If basic configuration is incomplete before the above loop
+ * count reaches 0, loading the configuration from NVM will
+ * leave the PHY in a bad state possibly resulting in no link.
+ */
+ if (loop == 0)
+ e_dbg("LAN_INIT_DONE not set, increase timeout\n");
+
+ /* Clear the Init Done bit for the next init event */
+ data = er32(STATUS);
+ data &= ~E1000_STATUS_LAN_INIT_DONE;
+ ew32(STATUS, data);
+}
+
+/**
+ * e1000_post_phy_reset_ich8lan - Perform steps required after a PHY reset
+ * @hw: pointer to the HW structure
+ **/
+static s32 e1000_post_phy_reset_ich8lan(struct e1000_hw *hw)
+{
+ s32 ret_val = 0;
+ u16 reg;
+
+ if (hw->phy.ops.check_reset_block(hw))
+ return 0;
+
+ /* Allow time for h/w to get to quiescent state after reset */
+ usleep_range(10000, 20000);
+
+ /* Perform any necessary post-reset workarounds */
+ switch (hw->mac.type) {
+ case e1000_pchlan:
+ ret_val = e1000_hv_phy_workarounds_ich8lan(hw);
+ if (ret_val)
+ return ret_val;
+ break;
+ case e1000_pch2lan:
+ ret_val = e1000_lv_phy_workarounds_ich8lan(hw);
+ if (ret_val)
+ return ret_val;
+ break;
+ default:
+ break;
+ }
+
+ /* Clear the host wakeup bit after lcd reset */
+ if (hw->mac.type >= e1000_pchlan) {
+ e1e_rphy(hw, BM_PORT_GEN_CFG, &reg);
+ reg &= ~BM_WUC_HOST_WU_BIT;
+ e1e_wphy(hw, BM_PORT_GEN_CFG, reg);
+ }
+
+ /* Configure the LCD with the extended configuration region in NVM */
+ ret_val = e1000_sw_lcd_config_ich8lan(hw);
+ if (ret_val)
+ return ret_val;
+
+ /* Configure the LCD with the OEM bits in NVM */
+ ret_val = e1000_oem_bits_config_ich8lan(hw, true);
+
+ if (hw->mac.type == e1000_pch2lan) {
+ /* Ungate automatic PHY configuration on non-managed 82579 */
+ if (!(er32(FWSM) & E1000_ICH_FWSM_FW_VALID)) {
+ usleep_range(10000, 20000);
+ e1000_gate_hw_phy_config_ich8lan(hw, false);
+ }
+
+ /* Set EEE LPI Update Timer to 200usec */
+ ret_val = hw->phy.ops.acquire(hw);
+ if (ret_val)
+ return ret_val;
+ ret_val = e1000_write_emi_reg_locked(hw,
+ I82579_LPI_UPDATE_TIMER,
+ 0x1387);
+ hw->phy.ops.release(hw);
+ }
+
+ return ret_val;
+}
+
+/**
+ * e1000_phy_hw_reset_ich8lan - Performs a PHY reset
+ * @hw: pointer to the HW structure
+ *
+ * Resets the PHY
+ * This is a function pointer entry point called by drivers
+ * or other shared routines.
+ **/
+static s32 e1000_phy_hw_reset_ich8lan(struct e1000_hw *hw)
+{
+ s32 ret_val = 0;
+
+ /* Gate automatic PHY configuration by hardware on non-managed 82579 */
+ if ((hw->mac.type == e1000_pch2lan) &&
+ !(er32(FWSM) & E1000_ICH_FWSM_FW_VALID))
+ e1000_gate_hw_phy_config_ich8lan(hw, true);
+
+ ret_val = e1000e_phy_hw_reset_generic(hw);
+ if (ret_val)
+ return ret_val;
+
+ return e1000_post_phy_reset_ich8lan(hw);
+}
+
+/**
+ * e1000_set_lplu_state_pchlan - Set Low Power Link Up state
+ * @hw: pointer to the HW structure
+ * @active: true to enable LPLU, false to disable
+ *
+ * Sets the LPLU state according to the active flag. For PCH, if OEM write
+ * bit are disabled in the NVM, writing the LPLU bits in the MAC will not set
+ * the phy speed. This function will manually set the LPLU bit and restart
+ * auto-neg as hw would do. D3 and D0 LPLU will call the same function
+ * since it configures the same bit.
+ **/
+static s32 e1000_set_lplu_state_pchlan(struct e1000_hw *hw, bool active)
+{
+ s32 ret_val;
+ u16 oem_reg;
+
+ ret_val = e1e_rphy(hw, HV_OEM_BITS, &oem_reg);
+ if (ret_val)
+ return ret_val;
+
+ if (active)
+ oem_reg |= HV_OEM_BITS_LPLU;
+ else
+ oem_reg &= ~HV_OEM_BITS_LPLU;
+
+ if (!hw->phy.ops.check_reset_block(hw))
+ oem_reg |= HV_OEM_BITS_RESTART_AN;
+
+ return e1e_wphy(hw, HV_OEM_BITS, oem_reg);
+}
+
+/**
+ * e1000_set_d0_lplu_state_ich8lan - Set Low Power Linkup D0 state
+ * @hw: pointer to the HW structure
+ * @active: true to enable LPLU, false to disable
+ *
+ * Sets the LPLU D0 state according to the active flag. When
+ * activating LPLU this function also disables smart speed
+ * and vice versa. LPLU will not be activated unless the
+ * device autonegotiation advertisement meets standards of
+ * either 10 or 10/100 or 10/100/1000 at all duplexes.
+ * This is a function pointer entry point only called by
+ * PHY setup routines.
+ **/
+static s32 e1000_set_d0_lplu_state_ich8lan(struct e1000_hw *hw, bool active)
+{
+ struct e1000_phy_info *phy = &hw->phy;
+ u32 phy_ctrl;
+ s32 ret_val = 0;
+ u16 data;
+
+ if (phy->type == e1000_phy_ife)
+ return 0;
+
+ phy_ctrl = er32(PHY_CTRL);
+
+ if (active) {
+ phy_ctrl |= E1000_PHY_CTRL_D0A_LPLU;
+ ew32(PHY_CTRL, phy_ctrl);
+
+ if (phy->type != e1000_phy_igp_3)
+ return 0;
+
+ /* Call gig speed drop workaround on LPLU before accessing
+ * any PHY registers
+ */
+ if (hw->mac.type == e1000_ich8lan)
+ e1000e_gig_downshift_workaround_ich8lan(hw);
+
+ /* When LPLU is enabled, we should disable SmartSpeed */
+ ret_val = e1e_rphy(hw, IGP01E1000_PHY_PORT_CONFIG, &data);
+ if (ret_val)
+ return ret_val;
+ data &= ~IGP01E1000_PSCFR_SMART_SPEED;
+ ret_val = e1e_wphy(hw, IGP01E1000_PHY_PORT_CONFIG, data);
+ if (ret_val)
+ return ret_val;
+ } else {
+ phy_ctrl &= ~E1000_PHY_CTRL_D0A_LPLU;
+ ew32(PHY_CTRL, phy_ctrl);
+
+ if (phy->type != e1000_phy_igp_3)
+ return 0;
+
+ /* LPLU and SmartSpeed are mutually exclusive. LPLU is used
+ * during Dx states where the power conservation is most
+ * important. During driver activity we should enable
+ * SmartSpeed, so performance is maintained.
+ */
+ if (phy->smart_speed == e1000_smart_speed_on) {
+ ret_val = e1e_rphy(hw,
+ IGP01E1000_PHY_PORT_CONFIG, &data);
+ if (ret_val)
+ return ret_val;
+
+ data |= IGP01E1000_PSCFR_SMART_SPEED;
+ ret_val = e1e_wphy(hw,
+ IGP01E1000_PHY_PORT_CONFIG, data);
+ if (ret_val)
+ return ret_val;
+ } else if (phy->smart_speed == e1000_smart_speed_off) {
+ ret_val = e1e_rphy(hw,
+ IGP01E1000_PHY_PORT_CONFIG, &data);
+ if (ret_val)
+ return ret_val;
+
+ data &= ~IGP01E1000_PSCFR_SMART_SPEED;
+ ret_val = e1e_wphy(hw,
+ IGP01E1000_PHY_PORT_CONFIG, data);
+ if (ret_val)
+ return ret_val;
+ }
+ }
+
+ return 0;
+}
+
+/**
+ * e1000_set_d3_lplu_state_ich8lan - Set Low Power Linkup D3 state
+ * @hw: pointer to the HW structure
+ * @active: true to enable LPLU, false to disable
+ *
+ * Sets the LPLU D3 state according to the active flag. When
+ * activating LPLU this function also disables smart speed
+ * and vice versa. LPLU will not be activated unless the
+ * device autonegotiation advertisement meets standards of
+ * either 10 or 10/100 or 10/100/1000 at all duplexes.
+ * This is a function pointer entry point only called by
+ * PHY setup routines.
+ **/
+static s32 e1000_set_d3_lplu_state_ich8lan(struct e1000_hw *hw, bool active)
+{
+ struct e1000_phy_info *phy = &hw->phy;
+ u32 phy_ctrl;
+ s32 ret_val = 0;
+ u16 data;
+
+ phy_ctrl = er32(PHY_CTRL);
+
+ if (!active) {
+ phy_ctrl &= ~E1000_PHY_CTRL_NOND0A_LPLU;
+ ew32(PHY_CTRL, phy_ctrl);
+
+ if (phy->type != e1000_phy_igp_3)
+ return 0;
+
+ /* LPLU and SmartSpeed are mutually exclusive. LPLU is used
+ * during Dx states where the power conservation is most
+ * important. During driver activity we should enable
+ * SmartSpeed, so performance is maintained.
+ */
+ if (phy->smart_speed == e1000_smart_speed_on) {
+ ret_val = e1e_rphy(hw,
+ IGP01E1000_PHY_PORT_CONFIG, &data);
+ if (ret_val)
+ return ret_val;
+
+ data |= IGP01E1000_PSCFR_SMART_SPEED;
+ ret_val = e1e_wphy(hw,
+ IGP01E1000_PHY_PORT_CONFIG, data);
+ if (ret_val)
+ return ret_val;
+ } else if (phy->smart_speed == e1000_smart_speed_off) {
+ ret_val = e1e_rphy(hw,
+ IGP01E1000_PHY_PORT_CONFIG, &data);
+ if (ret_val)
+ return ret_val;
+
+ data &= ~IGP01E1000_PSCFR_SMART_SPEED;
+ ret_val = e1e_wphy(hw,
+ IGP01E1000_PHY_PORT_CONFIG, data);
+ if (ret_val)
+ return ret_val;
+ }
+ } else if ((phy->autoneg_advertised == E1000_ALL_SPEED_DUPLEX) ||
+ (phy->autoneg_advertised == E1000_ALL_NOT_GIG) ||
+ (phy->autoneg_advertised == E1000_ALL_10_SPEED)) {
+ phy_ctrl |= E1000_PHY_CTRL_NOND0A_LPLU;
+ ew32(PHY_CTRL, phy_ctrl);
+
+ if (phy->type != e1000_phy_igp_3)
+ return 0;
+
+ /* Call gig speed drop workaround on LPLU before accessing
+ * any PHY registers
+ */
+ if (hw->mac.type == e1000_ich8lan)
+ e1000e_gig_downshift_workaround_ich8lan(hw);
+
+ /* When LPLU is enabled, we should disable SmartSpeed */
+ ret_val = e1e_rphy(hw, IGP01E1000_PHY_PORT_CONFIG, &data);
+ if (ret_val)
+ return ret_val;
+
+ data &= ~IGP01E1000_PSCFR_SMART_SPEED;
+ ret_val = e1e_wphy(hw, IGP01E1000_PHY_PORT_CONFIG, data);
+ }
+
+ return ret_val;
+}
+
+/**
+ * e1000_valid_nvm_bank_detect_ich8lan - finds out the valid bank 0 or 1
+ * @hw: pointer to the HW structure
+ * @bank: pointer to the variable that returns the active bank
+ *
+ * Reads signature byte from the NVM using the flash access registers.
+ * Word 0x13 bits 15:14 = 10b indicate a valid signature for that bank.
+ **/
+static s32 e1000_valid_nvm_bank_detect_ich8lan(struct e1000_hw *hw, u32 *bank)
+{
+ u32 eecd;
+ struct e1000_nvm_info *nvm = &hw->nvm;
+ u32 bank1_offset = nvm->flash_bank_size * sizeof(u16);
+ u32 act_offset = E1000_ICH_NVM_SIG_WORD * 2 + 1;
+ u32 nvm_dword = 0;
+ u8 sig_byte = 0;
+ s32 ret_val;
+
+ switch (hw->mac.type) {
+ case e1000_pch_spt:
+ case e1000_pch_cnp:
+ case e1000_pch_tgp:
+ case e1000_pch_adp:
+ bank1_offset = nvm->flash_bank_size;
+ act_offset = E1000_ICH_NVM_SIG_WORD;
+
+ /* set bank to 0 in case flash read fails */
+ *bank = 0;
+
+ /* Check bank 0 */
+ ret_val = e1000_read_flash_dword_ich8lan(hw, act_offset,
+ &nvm_dword);
+ if (ret_val)
+ return ret_val;
+ sig_byte = (u8)((nvm_dword & 0xFF00) >> 8);
+ if ((sig_byte & E1000_ICH_NVM_VALID_SIG_MASK) ==
+ E1000_ICH_NVM_SIG_VALUE) {
+ *bank = 0;
+ return 0;
+ }
+
+ /* Check bank 1 */
+ ret_val = e1000_read_flash_dword_ich8lan(hw, act_offset +
+ bank1_offset,
+ &nvm_dword);
+ if (ret_val)
+ return ret_val;
+ sig_byte = (u8)((nvm_dword & 0xFF00) >> 8);
+ if ((sig_byte & E1000_ICH_NVM_VALID_SIG_MASK) ==
+ E1000_ICH_NVM_SIG_VALUE) {
+ *bank = 1;
+ return 0;
+ }
+
+ e_dbg("ERROR: No valid NVM bank present\n");
+ return -E1000_ERR_NVM;
+ case e1000_ich8lan:
+ case e1000_ich9lan:
+ eecd = er32(EECD);
+ if ((eecd & E1000_EECD_SEC1VAL_VALID_MASK) ==
+ E1000_EECD_SEC1VAL_VALID_MASK) {
+ if (eecd & E1000_EECD_SEC1VAL)
+ *bank = 1;
+ else
+ *bank = 0;
+
+ return 0;
+ }
+ e_dbg("Unable to determine valid NVM bank via EEC - reading flash signature\n");
+ /* fall-thru */
+ default:
+ /* set bank to 0 in case flash read fails */
+ *bank = 0;
+
+ /* Check bank 0 */
+ ret_val = e1000_read_flash_byte_ich8lan(hw, act_offset,
+ &sig_byte);
+ if (ret_val)
+ return ret_val;
+ if ((sig_byte & E1000_ICH_NVM_VALID_SIG_MASK) ==
+ E1000_ICH_NVM_SIG_VALUE) {
+ *bank = 0;
+ return 0;
+ }
+
+ /* Check bank 1 */
+ ret_val = e1000_read_flash_byte_ich8lan(hw, act_offset +
+ bank1_offset,
+ &sig_byte);
+ if (ret_val)
+ return ret_val;
+ if ((sig_byte & E1000_ICH_NVM_VALID_SIG_MASK) ==
+ E1000_ICH_NVM_SIG_VALUE) {
+ *bank = 1;
+ return 0;
+ }
+
+ e_dbg("ERROR: No valid NVM bank present\n");
+ return -E1000_ERR_NVM;
+ }
+}
+
+/**
+ * e1000_read_nvm_spt - NVM access for SPT
+ * @hw: pointer to the HW structure
+ * @offset: The offset (in bytes) of the word(s) to read.
+ * @words: Size of data to read in words.
+ * @data: pointer to the word(s) to read at offset.
+ *
+ * Reads a word(s) from the NVM
+ **/
+static s32 e1000_read_nvm_spt(struct e1000_hw *hw, u16 offset, u16 words,
+ u16 *data)
+{
+ struct e1000_nvm_info *nvm = &hw->nvm;
+ struct e1000_dev_spec_ich8lan *dev_spec = &hw->dev_spec.ich8lan;
+ u32 act_offset;
+ s32 ret_val = 0;
+ u32 bank = 0;
+ u32 dword = 0;
+ u16 offset_to_read;
+ u16 i;
+
+ if ((offset >= nvm->word_size) || (words > nvm->word_size - offset) ||
+ (words == 0)) {
+ e_dbg("nvm parameter(s) out of bounds\n");
+ ret_val = -E1000_ERR_NVM;
+ goto out;
+ }
+
+ nvm->ops.acquire(hw);
+
+ ret_val = e1000_valid_nvm_bank_detect_ich8lan(hw, &bank);
+ if (ret_val) {
+ e_dbg("Could not detect valid bank, assuming bank 0\n");
+ bank = 0;
+ }
+
+ act_offset = (bank) ? nvm->flash_bank_size : 0;
+ act_offset += offset;
+
+ ret_val = 0;
+
+ for (i = 0; i < words; i += 2) {
+ if (words - i == 1) {
+ if (dev_spec->shadow_ram[offset + i].modified) {
+ data[i] =
+ dev_spec->shadow_ram[offset + i].value;
+ } else {
+ offset_to_read = act_offset + i -
+ ((act_offset + i) % 2);
+ ret_val =
+ e1000_read_flash_dword_ich8lan(hw,
+ offset_to_read,
+ &dword);
+ if (ret_val)
+ break;
+ if ((act_offset + i) % 2 == 0)
+ data[i] = (u16)(dword & 0xFFFF);
+ else
+ data[i] = (u16)((dword >> 16) & 0xFFFF);
+ }
+ } else {
+ offset_to_read = act_offset + i;
+ if (!(dev_spec->shadow_ram[offset + i].modified) ||
+ !(dev_spec->shadow_ram[offset + i + 1].modified)) {
+ ret_val =
+ e1000_read_flash_dword_ich8lan(hw,
+ offset_to_read,
+ &dword);
+ if (ret_val)
+ break;
+ }
+ if (dev_spec->shadow_ram[offset + i].modified)
+ data[i] =
+ dev_spec->shadow_ram[offset + i].value;
+ else
+ data[i] = (u16)(dword & 0xFFFF);
+ if (dev_spec->shadow_ram[offset + i + 1].modified)
+ data[i + 1] =
+ dev_spec->shadow_ram[offset + i + 1].value;
+ else
+ data[i + 1] = (u16)(dword >> 16 & 0xFFFF);
+ }
+ }
+
+ nvm->ops.release(hw);
+
+out:
+ if (ret_val)
+ e_dbg("NVM read error: %d\n", ret_val);
+
+ return ret_val;
+}
+
+/**
+ * e1000_read_nvm_ich8lan - Read word(s) from the NVM
+ * @hw: pointer to the HW structure
+ * @offset: The offset (in bytes) of the word(s) to read.
+ * @words: Size of data to read in words
+ * @data: Pointer to the word(s) to read at offset.
+ *
+ * Reads a word(s) from the NVM using the flash access registers.
+ **/
+static s32 e1000_read_nvm_ich8lan(struct e1000_hw *hw, u16 offset, u16 words,
+ u16 *data)
+{
+ struct e1000_nvm_info *nvm = &hw->nvm;
+ struct e1000_dev_spec_ich8lan *dev_spec = &hw->dev_spec.ich8lan;
+ u32 act_offset;
+ s32 ret_val = 0;
+ u32 bank = 0;
+ u16 i, word;
+
+ if ((offset >= nvm->word_size) || (words > nvm->word_size - offset) ||
+ (words == 0)) {
+ e_dbg("nvm parameter(s) out of bounds\n");
+ ret_val = -E1000_ERR_NVM;
+ goto out;
+ }
+
+ nvm->ops.acquire(hw);
+
+ ret_val = e1000_valid_nvm_bank_detect_ich8lan(hw, &bank);
+ if (ret_val) {
+ e_dbg("Could not detect valid bank, assuming bank 0\n");
+ bank = 0;
+ }
+
+ act_offset = (bank) ? nvm->flash_bank_size : 0;
+ act_offset += offset;
+
+ ret_val = 0;
+ for (i = 0; i < words; i++) {
+ if (dev_spec->shadow_ram[offset + i].modified) {
+ data[i] = dev_spec->shadow_ram[offset + i].value;
+ } else {
+ ret_val = e1000_read_flash_word_ich8lan(hw,
+ act_offset + i,
+ &word);
+ if (ret_val)
+ break;
+ data[i] = word;
+ }
+ }
+
+ nvm->ops.release(hw);
+
+out:
+ if (ret_val)
+ e_dbg("NVM read error: %d\n", ret_val);
+
+ return ret_val;
+}
+
+/**
+ * e1000_flash_cycle_init_ich8lan - Initialize flash
+ * @hw: pointer to the HW structure
+ *
+ * This function does initial flash setup so that a new read/write/erase cycle
+ * can be started.
+ **/
+static s32 e1000_flash_cycle_init_ich8lan(struct e1000_hw *hw)
+{
+ union ich8_hws_flash_status hsfsts;
+ s32 ret_val = -E1000_ERR_NVM;
+
+ hsfsts.regval = er16flash(ICH_FLASH_HSFSTS);
+
+ /* Check if the flash descriptor is valid */
+ if (!hsfsts.hsf_status.fldesvalid) {
+ e_dbg("Flash descriptor invalid. SW Sequencing must be used.\n");
+ return -E1000_ERR_NVM;
+ }
+
+ /* Clear FCERR and DAEL in hw status by writing 1 */
+ hsfsts.hsf_status.flcerr = 1;
+ hsfsts.hsf_status.dael = 1;
+ if (hw->mac.type >= e1000_pch_spt)
+ ew32flash(ICH_FLASH_HSFSTS, hsfsts.regval & 0xFFFF);
+ else
+ ew16flash(ICH_FLASH_HSFSTS, hsfsts.regval);
+
+ /* Either we should have a hardware SPI cycle in progress
+ * bit to check against, in order to start a new cycle or
+ * FDONE bit should be changed in the hardware so that it
+ * is 1 after hardware reset, which can then be used as an
+ * indication whether a cycle is in progress or has been
+ * completed.
+ */
+
+ if (!hsfsts.hsf_status.flcinprog) {
+ /* There is no cycle running at present,
+ * so we can start a cycle.
+ * Begin by setting Flash Cycle Done.
+ */
+ hsfsts.hsf_status.flcdone = 1;
+ if (hw->mac.type >= e1000_pch_spt)
+ ew32flash(ICH_FLASH_HSFSTS, hsfsts.regval & 0xFFFF);
+ else
+ ew16flash(ICH_FLASH_HSFSTS, hsfsts.regval);
+ ret_val = 0;
+ } else {
+ s32 i;
+
+ /* Otherwise poll for sometime so the current
+ * cycle has a chance to end before giving up.
+ */
+ for (i = 0; i < ICH_FLASH_READ_COMMAND_TIMEOUT; i++) {
+ hsfsts.regval = er16flash(ICH_FLASH_HSFSTS);
+ if (!hsfsts.hsf_status.flcinprog) {
+ ret_val = 0;
+ break;
+ }
+ udelay(1);
+ }
+ if (!ret_val) {
+ /* Successful in waiting for previous cycle to timeout,
+ * now set the Flash Cycle Done.
+ */
+ hsfsts.hsf_status.flcdone = 1;
+ if (hw->mac.type >= e1000_pch_spt)
+ ew32flash(ICH_FLASH_HSFSTS,
+ hsfsts.regval & 0xFFFF);
+ else
+ ew16flash(ICH_FLASH_HSFSTS, hsfsts.regval);
+ } else {
+ e_dbg("Flash controller busy, cannot get access\n");
+ }
+ }
+
+ return ret_val;
+}
+
+/**
+ * e1000_flash_cycle_ich8lan - Starts flash cycle (read/write/erase)
+ * @hw: pointer to the HW structure
+ * @timeout: maximum time to wait for completion
+ *
+ * This function starts a flash cycle and waits for its completion.
+ **/
+static s32 e1000_flash_cycle_ich8lan(struct e1000_hw *hw, u32 timeout)
+{
+ union ich8_hws_flash_ctrl hsflctl;
+ union ich8_hws_flash_status hsfsts;
+ u32 i = 0;
+
+ /* Start a cycle by writing 1 in Flash Cycle Go in Hw Flash Control */
+ if (hw->mac.type >= e1000_pch_spt)
+ hsflctl.regval = er32flash(ICH_FLASH_HSFSTS) >> 16;
+ else
+ hsflctl.regval = er16flash(ICH_FLASH_HSFCTL);
+ hsflctl.hsf_ctrl.flcgo = 1;
+
+ if (hw->mac.type >= e1000_pch_spt)
+ ew32flash(ICH_FLASH_HSFSTS, hsflctl.regval << 16);
+ else
+ ew16flash(ICH_FLASH_HSFCTL, hsflctl.regval);
+
+ /* wait till FDONE bit is set to 1 */
+ do {
+ hsfsts.regval = er16flash(ICH_FLASH_HSFSTS);
+ if (hsfsts.hsf_status.flcdone)
+ break;
+ udelay(1);
+ } while (i++ < timeout);
+
+ if (hsfsts.hsf_status.flcdone && !hsfsts.hsf_status.flcerr)
+ return 0;
+
+ return -E1000_ERR_NVM;
+}
+
+/**
+ * e1000_read_flash_dword_ich8lan - Read dword from flash
+ * @hw: pointer to the HW structure
+ * @offset: offset to data location
+ * @data: pointer to the location for storing the data
+ *
+ * Reads the flash dword at offset into data. Offset is converted
+ * to bytes before read.
+ **/
+static s32 e1000_read_flash_dword_ich8lan(struct e1000_hw *hw, u32 offset,
+ u32 *data)
+{
+ /* Must convert word offset into bytes. */
+ offset <<= 1;
+
+ return e1000_read_flash_data32_ich8lan(hw, offset, data);
+}
+
+/**
+ * e1000_read_flash_word_ich8lan - Read word from flash
+ * @hw: pointer to the HW structure
+ * @offset: offset to data location
+ * @data: pointer to the location for storing the data
+ *
+ * Reads the flash word at offset into data. Offset is converted
+ * to bytes before read.
+ **/
+static s32 e1000_read_flash_word_ich8lan(struct e1000_hw *hw, u32 offset,
+ u16 *data)
+{
+ /* Must convert offset into bytes. */
+ offset <<= 1;
+
+ return e1000_read_flash_data_ich8lan(hw, offset, 2, data);
+}
+
+/**
+ * e1000_read_flash_byte_ich8lan - Read byte from flash
+ * @hw: pointer to the HW structure
+ * @offset: The offset of the byte to read.
+ * @data: Pointer to a byte to store the value read.
+ *
+ * Reads a single byte from the NVM using the flash access registers.
+ **/
+static s32 e1000_read_flash_byte_ich8lan(struct e1000_hw *hw, u32 offset,
+ u8 *data)
+{
+ s32 ret_val;
+ u16 word = 0;
+
+ /* In SPT, only 32 bits access is supported,
+ * so this function should not be called.
+ */
+ if (hw->mac.type >= e1000_pch_spt)
+ return -E1000_ERR_NVM;
+ else
+ ret_val = e1000_read_flash_data_ich8lan(hw, offset, 1, &word);
+
+ if (ret_val)
+ return ret_val;
+
+ *data = (u8)word;
+
+ return 0;
+}
+
+/**
+ * e1000_read_flash_data_ich8lan - Read byte or word from NVM
+ * @hw: pointer to the HW structure
+ * @offset: The offset (in bytes) of the byte or word to read.
+ * @size: Size of data to read, 1=byte 2=word
+ * @data: Pointer to the word to store the value read.
+ *
+ * Reads a byte or word from the NVM using the flash access registers.
+ **/
+static s32 e1000_read_flash_data_ich8lan(struct e1000_hw *hw, u32 offset,
+ u8 size, u16 *data)
+{
+ union ich8_hws_flash_status hsfsts;
+ union ich8_hws_flash_ctrl hsflctl;
+ u32 flash_linear_addr;
+ u32 flash_data = 0;
+ s32 ret_val = -E1000_ERR_NVM;
+ u8 count = 0;
+
+ if (size < 1 || size > 2 || offset > ICH_FLASH_LINEAR_ADDR_MASK)
+ return -E1000_ERR_NVM;
+ flash_linear_addr = ((ICH_FLASH_LINEAR_ADDR_MASK & offset) +
+ hw->nvm.flash_base_addr);
+
+ do {
+ udelay(1);
+ /* Steps */
+ ret_val = e1000_flash_cycle_init_ich8lan(hw);
+ if (ret_val)
+ break;
+ hsflctl.regval = er16flash(ICH_FLASH_HSFCTL);
+
+ /* 0b/1b corresponds to 1 or 2 byte size, respectively. */
+ hsflctl.hsf_ctrl.fldbcount = size - 1;
+ hsflctl.hsf_ctrl.flcycle = ICH_CYCLE_READ;
+ ew16flash(ICH_FLASH_HSFCTL, hsflctl.regval);
+ ew32flash(ICH_FLASH_FADDR, flash_linear_addr);
+
+ ret_val = e1000_flash_cycle_ich8lan(hw,
+ ICH_FLASH_READ_COMMAND_TIMEOUT);
+
+ /* Check if FCERR is set to 1, if set to 1, clear it
+ * and try the whole sequence a few more times, else
+ * read in (shift in) the Flash Data0, the order is
+ * least significant byte first msb to lsb
+ */
+ if (!ret_val) {
+ flash_data = er32flash(ICH_FLASH_FDATA0);
+ if (size == 1)
+ *data = (u8)(flash_data & 0x000000FF);
+ else if (size == 2)
+ *data = (u16)(flash_data & 0x0000FFFF);
+ break;
+ } else {
+ /* If we've gotten here, then things are probably
+ * completely hosed, but if the error condition is
+ * detected, it won't hurt to give it another try...
+ * ICH_FLASH_CYCLE_REPEAT_COUNT times.
+ */
+ hsfsts.regval = er16flash(ICH_FLASH_HSFSTS);
+ if (hsfsts.hsf_status.flcerr) {
+ /* Repeat for some time before giving up. */
+ continue;
+ } else if (!hsfsts.hsf_status.flcdone) {
+ e_dbg("Timeout error - flash cycle did not complete.\n");
+ break;
+ }
+ }
+ } while (count++ < ICH_FLASH_CYCLE_REPEAT_COUNT);
+
+ return ret_val;
+}
+
+/**
+ * e1000_read_flash_data32_ich8lan - Read dword from NVM
+ * @hw: pointer to the HW structure
+ * @offset: The offset (in bytes) of the dword to read.
+ * @data: Pointer to the dword to store the value read.
+ *
+ * Reads a byte or word from the NVM using the flash access registers.
+ **/
+
+static s32 e1000_read_flash_data32_ich8lan(struct e1000_hw *hw, u32 offset,
+ u32 *data)
+{
+ union ich8_hws_flash_status hsfsts;
+ union ich8_hws_flash_ctrl hsflctl;
+ u32 flash_linear_addr;
+ s32 ret_val = -E1000_ERR_NVM;
+ u8 count = 0;
+
+ if (offset > ICH_FLASH_LINEAR_ADDR_MASK || hw->mac.type < e1000_pch_spt)
+ return -E1000_ERR_NVM;
+ flash_linear_addr = ((ICH_FLASH_LINEAR_ADDR_MASK & offset) +
+ hw->nvm.flash_base_addr);
+
+ do {
+ udelay(1);
+ /* Steps */
+ ret_val = e1000_flash_cycle_init_ich8lan(hw);
+ if (ret_val)
+ break;
+ /* In SPT, This register is in Lan memory space, not flash.
+ * Therefore, only 32 bit access is supported
+ */
+ hsflctl.regval = er32flash(ICH_FLASH_HSFSTS) >> 16;
+
+ /* 0b/1b corresponds to 1 or 2 byte size, respectively. */
+ hsflctl.hsf_ctrl.fldbcount = sizeof(u32) - 1;
+ hsflctl.hsf_ctrl.flcycle = ICH_CYCLE_READ;
+ /* In SPT, This register is in Lan memory space, not flash.
+ * Therefore, only 32 bit access is supported
+ */
+ ew32flash(ICH_FLASH_HSFSTS, (u32)hsflctl.regval << 16);
+ ew32flash(ICH_FLASH_FADDR, flash_linear_addr);
+
+ ret_val = e1000_flash_cycle_ich8lan(hw,
+ ICH_FLASH_READ_COMMAND_TIMEOUT);
+
+ /* Check if FCERR is set to 1, if set to 1, clear it
+ * and try the whole sequence a few more times, else
+ * read in (shift in) the Flash Data0, the order is
+ * least significant byte first msb to lsb
+ */
+ if (!ret_val) {
+ *data = er32flash(ICH_FLASH_FDATA0);
+ break;
+ } else {
+ /* If we've gotten here, then things are probably
+ * completely hosed, but if the error condition is
+ * detected, it won't hurt to give it another try...
+ * ICH_FLASH_CYCLE_REPEAT_COUNT times.
+ */
+ hsfsts.regval = er16flash(ICH_FLASH_HSFSTS);
+ if (hsfsts.hsf_status.flcerr) {
+ /* Repeat for some time before giving up. */
+ continue;
+ } else if (!hsfsts.hsf_status.flcdone) {
+ e_dbg("Timeout error - flash cycle did not complete.\n");
+ break;
+ }
+ }
+ } while (count++ < ICH_FLASH_CYCLE_REPEAT_COUNT);
+
+ return ret_val;
+}
+
+/**
+ * e1000_write_nvm_ich8lan - Write word(s) to the NVM
+ * @hw: pointer to the HW structure
+ * @offset: The offset (in bytes) of the word(s) to write.
+ * @words: Size of data to write in words
+ * @data: Pointer to the word(s) to write at offset.
+ *
+ * Writes a byte or word to the NVM using the flash access registers.
+ **/
+static s32 e1000_write_nvm_ich8lan(struct e1000_hw *hw, u16 offset, u16 words,
+ u16 *data)
+{
+ struct e1000_nvm_info *nvm = &hw->nvm;
+ struct e1000_dev_spec_ich8lan *dev_spec = &hw->dev_spec.ich8lan;
+ u16 i;
+
+ if ((offset >= nvm->word_size) || (words > nvm->word_size - offset) ||
+ (words == 0)) {
+ e_dbg("nvm parameter(s) out of bounds\n");
+ return -E1000_ERR_NVM;
+ }
+
+ nvm->ops.acquire(hw);
+
+ for (i = 0; i < words; i++) {
+ dev_spec->shadow_ram[offset + i].modified = true;
+ dev_spec->shadow_ram[offset + i].value = data[i];
+ }
+
+ nvm->ops.release(hw);
+
+ return 0;
+}
+
+/**
+ * e1000_update_nvm_checksum_spt - Update the checksum for NVM
+ * @hw: pointer to the HW structure
+ *
+ * The NVM checksum is updated by calling the generic update_nvm_checksum,
+ * which writes the checksum to the shadow ram. The changes in the shadow
+ * ram are then committed to the EEPROM by processing each bank at a time
+ * checking for the modified bit and writing only the pending changes.
+ * After a successful commit, the shadow ram is cleared and is ready for
+ * future writes.
+ **/
+static s32 e1000_update_nvm_checksum_spt(struct e1000_hw *hw)
+{
+ struct e1000_nvm_info *nvm = &hw->nvm;
+ struct e1000_dev_spec_ich8lan *dev_spec = &hw->dev_spec.ich8lan;
+ u32 i, act_offset, new_bank_offset, old_bank_offset, bank;
+ s32 ret_val;
+ u32 dword = 0;
+
+ ret_val = e1000e_update_nvm_checksum_generic(hw);
+ if (ret_val)
+ goto out;
+
+ if (nvm->type != e1000_nvm_flash_sw)
+ goto out;
+
+ nvm->ops.acquire(hw);
+
+ /* We're writing to the opposite bank so if we're on bank 1,
+ * write to bank 0 etc. We also need to erase the segment that
+ * is going to be written
+ */
+ ret_val = e1000_valid_nvm_bank_detect_ich8lan(hw, &bank);
+ if (ret_val) {
+ e_dbg("Could not detect valid bank, assuming bank 0\n");
+ bank = 0;
+ }
+
+ if (bank == 0) {
+ new_bank_offset = nvm->flash_bank_size;
+ old_bank_offset = 0;
+ ret_val = e1000_erase_flash_bank_ich8lan(hw, 1);
+ if (ret_val)
+ goto release;
+ } else {
+ old_bank_offset = nvm->flash_bank_size;
+ new_bank_offset = 0;
+ ret_val = e1000_erase_flash_bank_ich8lan(hw, 0);
+ if (ret_val)
+ goto release;
+ }
+ for (i = 0; i < E1000_ICH8_SHADOW_RAM_WORDS; i += 2) {
+ /* Determine whether to write the value stored
+ * in the other NVM bank or a modified value stored
+ * in the shadow RAM
+ */
+ ret_val = e1000_read_flash_dword_ich8lan(hw,
+ i + old_bank_offset,
+ &dword);
+
+ if (dev_spec->shadow_ram[i].modified) {
+ dword &= 0xffff0000;
+ dword |= (dev_spec->shadow_ram[i].value & 0xffff);
+ }
+ if (dev_spec->shadow_ram[i + 1].modified) {
+ dword &= 0x0000ffff;
+ dword |= ((dev_spec->shadow_ram[i + 1].value & 0xffff)
+ << 16);
+ }
+ if (ret_val)
+ break;
+
+ /* If the word is 0x13, then make sure the signature bits
+ * (15:14) are 11b until the commit has completed.
+ * This will allow us to write 10b which indicates the
+ * signature is valid. We want to do this after the write
+ * has completed so that we don't mark the segment valid
+ * while the write is still in progress
+ */
+ if (i == E1000_ICH_NVM_SIG_WORD - 1)
+ dword |= E1000_ICH_NVM_SIG_MASK << 16;
+
+ /* Convert offset to bytes. */
+ act_offset = (i + new_bank_offset) << 1;
+
+ usleep_range(100, 200);
+
+ /* Write the data to the new bank. Offset in words */
+ act_offset = i + new_bank_offset;
+ ret_val = e1000_retry_write_flash_dword_ich8lan(hw, act_offset,
+ dword);
+ if (ret_val)
+ break;
+ }
+
+ /* Don't bother writing the segment valid bits if sector
+ * programming failed.
+ */
+ if (ret_val) {
+ e_dbg("Flash commit failed.\n");
+ goto release;
+ }
+
+ /* Finally validate the new segment by setting bit 15:14
+ * to 10b in word 0x13 , this can be done without an
+ * erase as well since these bits are 11 to start with
+ * and we need to change bit 14 to 0b
+ */
+ act_offset = new_bank_offset + E1000_ICH_NVM_SIG_WORD;
+
+ /*offset in words but we read dword */
+ --act_offset;
+ ret_val = e1000_read_flash_dword_ich8lan(hw, act_offset, &dword);
+
+ if (ret_val)
+ goto release;
+
+ dword &= 0xBFFFFFFF;
+ ret_val = e1000_retry_write_flash_dword_ich8lan(hw, act_offset, dword);
+
+ if (ret_val)
+ goto release;
+
+ /* offset in words but we read dword */
+ act_offset = old_bank_offset + E1000_ICH_NVM_SIG_WORD - 1;
+ ret_val = e1000_read_flash_dword_ich8lan(hw, act_offset, &dword);
+
+ if (ret_val)
+ goto release;
+
+ dword &= 0x00FFFFFF;
+ ret_val = e1000_retry_write_flash_dword_ich8lan(hw, act_offset, dword);
+
+ if (ret_val)
+ goto release;
+
+ /* Great! Everything worked, we can now clear the cached entries. */
+ for (i = 0; i < E1000_ICH8_SHADOW_RAM_WORDS; i++) {
+ dev_spec->shadow_ram[i].modified = false;
+ dev_spec->shadow_ram[i].value = 0xFFFF;
+ }
+
+release:
+ nvm->ops.release(hw);
+
+ /* Reload the EEPROM, or else modifications will not appear
+ * until after the next adapter reset.
+ */
+ if (!ret_val) {
+ nvm->ops.reload(hw);
+ usleep_range(10000, 20000);
+ }
+
+out:
+ if (ret_val)
+ e_dbg("NVM update error: %d\n", ret_val);
+
+ return ret_val;
+}
+
+/**
+ * e1000_update_nvm_checksum_ich8lan - Update the checksum for NVM
+ * @hw: pointer to the HW structure
+ *
+ * The NVM checksum is updated by calling the generic update_nvm_checksum,
+ * which writes the checksum to the shadow ram. The changes in the shadow
+ * ram are then committed to the EEPROM by processing each bank at a time
+ * checking for the modified bit and writing only the pending changes.
+ * After a successful commit, the shadow ram is cleared and is ready for
+ * future writes.
+ **/
+static s32 e1000_update_nvm_checksum_ich8lan(struct e1000_hw *hw)
+{
+ struct e1000_nvm_info *nvm = &hw->nvm;
+ struct e1000_dev_spec_ich8lan *dev_spec = &hw->dev_spec.ich8lan;
+ u32 i, act_offset, new_bank_offset, old_bank_offset, bank;
+ s32 ret_val;
+ u16 data = 0;
+
+ ret_val = e1000e_update_nvm_checksum_generic(hw);
+ if (ret_val)
+ goto out;
+
+ if (nvm->type != e1000_nvm_flash_sw)
+ goto out;
+
+ nvm->ops.acquire(hw);
+
+ /* We're writing to the opposite bank so if we're on bank 1,
+ * write to bank 0 etc. We also need to erase the segment that
+ * is going to be written
+ */
+ ret_val = e1000_valid_nvm_bank_detect_ich8lan(hw, &bank);
+ if (ret_val) {
+ e_dbg("Could not detect valid bank, assuming bank 0\n");
+ bank = 0;
+ }
+
+ if (bank == 0) {
+ new_bank_offset = nvm->flash_bank_size;
+ old_bank_offset = 0;
+ ret_val = e1000_erase_flash_bank_ich8lan(hw, 1);
+ if (ret_val)
+ goto release;
+ } else {
+ old_bank_offset = nvm->flash_bank_size;
+ new_bank_offset = 0;
+ ret_val = e1000_erase_flash_bank_ich8lan(hw, 0);
+ if (ret_val)
+ goto release;
+ }
+ for (i = 0; i < E1000_ICH8_SHADOW_RAM_WORDS; i++) {
+ if (dev_spec->shadow_ram[i].modified) {
+ data = dev_spec->shadow_ram[i].value;
+ } else {
+ ret_val = e1000_read_flash_word_ich8lan(hw, i +
+ old_bank_offset,
+ &data);
+ if (ret_val)
+ break;
+ }
+ /* If the word is 0x13, then make sure the signature bits
+ * (15:14) are 11b until the commit has completed.
+ * This will allow us to write 10b which indicates the
+ * signature is valid. We want to do this after the write
+ * has completed so that we don't mark the segment valid
+ * while the write is still in progress
+ */
+ if (i == E1000_ICH_NVM_SIG_WORD)
+ data |= E1000_ICH_NVM_SIG_MASK;
+
+ /* Convert offset to bytes. */
+ act_offset = (i + new_bank_offset) << 1;
+
+ usleep_range(100, 200);
+
+ /* Write the bytes to the new bank. */
+ ret_val = e1000_retry_write_flash_byte_ich8lan(hw,
+ act_offset,
+ (u8)data);
+ if (ret_val)
+ break;
+
+ usleep_range(100, 200);
+ ret_val = e1000_retry_write_flash_byte_ich8lan(hw,
+ act_offset + 1,
+ (u8)(data >> 8));
+ if (ret_val)
+ break;
+ }
+
+ /* Don't bother writing the segment valid bits if sector
+ * programming failed.
+ */
+ if (ret_val) {
+ e_dbg("Flash commit failed.\n");
+ goto release;
+ }
+
+ /* Finally validate the new segment by setting bit 15:14
+ * to 10b in word 0x13 , this can be done without an
+ * erase as well since these bits are 11 to start with
+ * and we need to change bit 14 to 0b
+ */
+ act_offset = new_bank_offset + E1000_ICH_NVM_SIG_WORD;
+ ret_val = e1000_read_flash_word_ich8lan(hw, act_offset, &data);
+ if (ret_val)
+ goto release;
+
+ data &= 0xBFFF;
+ ret_val = e1000_retry_write_flash_byte_ich8lan(hw, act_offset * 2 + 1,
+ (u8)(data >> 8));
+ if (ret_val)
+ goto release;
+
+ /* And invalidate the previously valid segment by setting
+ * its signature word (0x13) high_byte to 0b. This can be
+ * done without an erase because flash erase sets all bits
+ * to 1's. We can write 1's to 0's without an erase
+ */
+ act_offset = (old_bank_offset + E1000_ICH_NVM_SIG_WORD) * 2 + 1;
+
+ ret_val = e1000_retry_write_flash_byte_ich8lan(hw, act_offset, 0);
+
+ if (ret_val)
+ goto release;
+
+ /* Great! Everything worked, we can now clear the cached entries. */
+ for (i = 0; i < E1000_ICH8_SHADOW_RAM_WORDS; i++) {
+ dev_spec->shadow_ram[i].modified = false;
+ dev_spec->shadow_ram[i].value = 0xFFFF;
+ }
+
+release:
+ nvm->ops.release(hw);
+
+ /* Reload the EEPROM, or else modifications will not appear
+ * until after the next adapter reset.
+ */
+ if (!ret_val) {
+ nvm->ops.reload(hw);
+ usleep_range(10000, 20000);
+ }
+
+out:
+ if (ret_val)
+ e_dbg("NVM update error: %d\n", ret_val);
+
+ return ret_val;
+}
+
+/**
+ * e1000_validate_nvm_checksum_ich8lan - Validate EEPROM checksum
+ * @hw: pointer to the HW structure
+ *
+ * Check to see if checksum needs to be fixed by reading bit 6 in word 0x19.
+ * If the bit is 0, that the EEPROM had been modified, but the checksum was not
+ * calculated, in which case we need to calculate the checksum and set bit 6.
+ **/
+static s32 e1000_validate_nvm_checksum_ich8lan(struct e1000_hw *hw)
+{
+ s32 ret_val;
+ u16 data;
+ u16 word;
+ u16 valid_csum_mask;
+
+ /* Read NVM and check Invalid Image CSUM bit. If this bit is 0,
+ * the checksum needs to be fixed. This bit is an indication that
+ * the NVM was prepared by OEM software and did not calculate
+ * the checksum...a likely scenario.
+ */
+ switch (hw->mac.type) {
+ case e1000_pch_lpt:
+ case e1000_pch_spt:
+ case e1000_pch_cnp:
+ case e1000_pch_tgp:
+ case e1000_pch_adp:
+ word = NVM_COMPAT;
+ valid_csum_mask = NVM_COMPAT_VALID_CSUM;
+ break;
+ default:
+ word = NVM_FUTURE_INIT_WORD1;
+ valid_csum_mask = NVM_FUTURE_INIT_WORD1_VALID_CSUM;
+ break;
+ }
+
+ ret_val = e1000_read_nvm(hw, word, 1, &data);
+ if (ret_val)
+ return ret_val;
+
+ if (!(data & valid_csum_mask)) {
+ data |= valid_csum_mask;
+ ret_val = e1000_write_nvm(hw, word, 1, &data);
+ if (ret_val)
+ return ret_val;
+ ret_val = e1000e_update_nvm_checksum(hw);
+ if (ret_val)
+ return ret_val;
+ }
+
+ return e1000e_validate_nvm_checksum_generic(hw);
+}
+
+/**
+ * e1000_write_flash_data_ich8lan - Writes bytes to the NVM
+ * @hw: pointer to the HW structure
+ * @offset: The offset (in bytes) of the byte/word to read.
+ * @size: Size of data to read, 1=byte 2=word
+ * @data: The byte(s) to write to the NVM.
+ *
+ * Writes one/two bytes to the NVM using the flash access registers.
+ **/
+static s32 e1000_write_flash_data_ich8lan(struct e1000_hw *hw, u32 offset,
+ u8 size, u16 data)
+{
+ union ich8_hws_flash_status hsfsts;
+ union ich8_hws_flash_ctrl hsflctl;
+ u32 flash_linear_addr;
+ u32 flash_data = 0;
+ s32 ret_val;
+ u8 count = 0;
+
+ if (hw->mac.type >= e1000_pch_spt) {
+ if (size != 4 || offset > ICH_FLASH_LINEAR_ADDR_MASK)
+ return -E1000_ERR_NVM;
+ } else {
+ if (size < 1 || size > 2 || offset > ICH_FLASH_LINEAR_ADDR_MASK)
+ return -E1000_ERR_NVM;
+ }
+
+ flash_linear_addr = ((ICH_FLASH_LINEAR_ADDR_MASK & offset) +
+ hw->nvm.flash_base_addr);
+
+ do {
+ udelay(1);
+ /* Steps */
+ ret_val = e1000_flash_cycle_init_ich8lan(hw);
+ if (ret_val)
+ break;
+ /* In SPT, This register is in Lan memory space, not
+ * flash. Therefore, only 32 bit access is supported
+ */
+ if (hw->mac.type >= e1000_pch_spt)
+ hsflctl.regval = er32flash(ICH_FLASH_HSFSTS) >> 16;
+ else
+ hsflctl.regval = er16flash(ICH_FLASH_HSFCTL);
+
+ /* 0b/1b corresponds to 1 or 2 byte size, respectively. */
+ hsflctl.hsf_ctrl.fldbcount = size - 1;
+ hsflctl.hsf_ctrl.flcycle = ICH_CYCLE_WRITE;
+ /* In SPT, This register is in Lan memory space,
+ * not flash. Therefore, only 32 bit access is
+ * supported
+ */
+ if (hw->mac.type >= e1000_pch_spt)
+ ew32flash(ICH_FLASH_HSFSTS, hsflctl.regval << 16);
+ else
+ ew16flash(ICH_FLASH_HSFCTL, hsflctl.regval);
+
+ ew32flash(ICH_FLASH_FADDR, flash_linear_addr);
+
+ if (size == 1)
+ flash_data = (u32)data & 0x00FF;
+ else
+ flash_data = (u32)data;
+
+ ew32flash(ICH_FLASH_FDATA0, flash_data);
+
+ /* check if FCERR is set to 1 , if set to 1, clear it
+ * and try the whole sequence a few more times else done
+ */
+ ret_val =
+ e1000_flash_cycle_ich8lan(hw,
+ ICH_FLASH_WRITE_COMMAND_TIMEOUT);
+ if (!ret_val)
+ break;
+
+ /* If we're here, then things are most likely
+ * completely hosed, but if the error condition
+ * is detected, it won't hurt to give it another
+ * try...ICH_FLASH_CYCLE_REPEAT_COUNT times.
+ */
+ hsfsts.regval = er16flash(ICH_FLASH_HSFSTS);
+ if (hsfsts.hsf_status.flcerr)
+ /* Repeat for some time before giving up. */
+ continue;
+ if (!hsfsts.hsf_status.flcdone) {
+ e_dbg("Timeout error - flash cycle did not complete.\n");
+ break;
+ }
+ } while (count++ < ICH_FLASH_CYCLE_REPEAT_COUNT);
+
+ return ret_val;
+}
+
+/**
+* e1000_write_flash_data32_ich8lan - Writes 4 bytes to the NVM
+* @hw: pointer to the HW structure
+* @offset: The offset (in bytes) of the dwords to read.
+* @data: The 4 bytes to write to the NVM.
+*
+* Writes one/two/four bytes to the NVM using the flash access registers.
+**/
+static s32 e1000_write_flash_data32_ich8lan(struct e1000_hw *hw, u32 offset,
+ u32 data)
+{
+ union ich8_hws_flash_status hsfsts;
+ union ich8_hws_flash_ctrl hsflctl;
+ u32 flash_linear_addr;
+ s32 ret_val;
+ u8 count = 0;
+
+ if (hw->mac.type >= e1000_pch_spt) {
+ if (offset > ICH_FLASH_LINEAR_ADDR_MASK)
+ return -E1000_ERR_NVM;
+ }
+ flash_linear_addr = ((ICH_FLASH_LINEAR_ADDR_MASK & offset) +
+ hw->nvm.flash_base_addr);
+ do {
+ udelay(1);
+ /* Steps */
+ ret_val = e1000_flash_cycle_init_ich8lan(hw);
+ if (ret_val)
+ break;
+
+ /* In SPT, This register is in Lan memory space, not
+ * flash. Therefore, only 32 bit access is supported
+ */
+ if (hw->mac.type >= e1000_pch_spt)
+ hsflctl.regval = er32flash(ICH_FLASH_HSFSTS)
+ >> 16;
+ else
+ hsflctl.regval = er16flash(ICH_FLASH_HSFCTL);
+
+ hsflctl.hsf_ctrl.fldbcount = sizeof(u32) - 1;
+ hsflctl.hsf_ctrl.flcycle = ICH_CYCLE_WRITE;
+
+ /* In SPT, This register is in Lan memory space,
+ * not flash. Therefore, only 32 bit access is
+ * supported
+ */
+ if (hw->mac.type >= e1000_pch_spt)
+ ew32flash(ICH_FLASH_HSFSTS, hsflctl.regval << 16);
+ else
+ ew16flash(ICH_FLASH_HSFCTL, hsflctl.regval);
+
+ ew32flash(ICH_FLASH_FADDR, flash_linear_addr);
+
+ ew32flash(ICH_FLASH_FDATA0, data);
+
+ /* check if FCERR is set to 1 , if set to 1, clear it
+ * and try the whole sequence a few more times else done
+ */
+ ret_val = e1000_flash_cycle_ich8lan(hw,
+ ICH_FLASH_WRITE_COMMAND_TIMEOUT);
+
+ if (!ret_val)
+ break;
+
+ /* If we're here, then things are most likely
+ * completely hosed, but if the error condition
+ * is detected, it won't hurt to give it another
+ * try...ICH_FLASH_CYCLE_REPEAT_COUNT times.
+ */
+ hsfsts.regval = er16flash(ICH_FLASH_HSFSTS);
+
+ if (hsfsts.hsf_status.flcerr)
+ /* Repeat for some time before giving up. */
+ continue;
+ if (!hsfsts.hsf_status.flcdone) {
+ e_dbg("Timeout error - flash cycle did not complete.\n");
+ break;
+ }
+ } while (count++ < ICH_FLASH_CYCLE_REPEAT_COUNT);
+
+ return ret_val;
+}
+
+/**
+ * e1000_write_flash_byte_ich8lan - Write a single byte to NVM
+ * @hw: pointer to the HW structure
+ * @offset: The index of the byte to read.
+ * @data: The byte to write to the NVM.
+ *
+ * Writes a single byte to the NVM using the flash access registers.
+ **/
+static s32 e1000_write_flash_byte_ich8lan(struct e1000_hw *hw, u32 offset,
+ u8 data)
+{
+ u16 word = (u16)data;
+
+ return e1000_write_flash_data_ich8lan(hw, offset, 1, word);
+}
+
+/**
+* e1000_retry_write_flash_dword_ich8lan - Writes a dword to NVM
+* @hw: pointer to the HW structure
+* @offset: The offset of the word to write.
+* @dword: The dword to write to the NVM.
+*
+* Writes a single dword to the NVM using the flash access registers.
+* Goes through a retry algorithm before giving up.
+**/
+static s32 e1000_retry_write_flash_dword_ich8lan(struct e1000_hw *hw,
+ u32 offset, u32 dword)
+{
+ s32 ret_val;
+ u16 program_retries;
+
+ /* Must convert word offset into bytes. */
+ offset <<= 1;
+
+ ret_val = e1000_write_flash_data32_ich8lan(hw, offset, dword);
+
+ if (!ret_val)
+ return ret_val;
+ for (program_retries = 0; program_retries < 100; program_retries++) {
+ e_dbg("Retrying Byte %8.8X at offset %u\n", dword, offset);
+ usleep_range(100, 200);
+ ret_val = e1000_write_flash_data32_ich8lan(hw, offset, dword);
+ if (!ret_val)
+ break;
+ }
+ if (program_retries == 100)
+ return -E1000_ERR_NVM;
+
+ return 0;
+}
+
+/**
+ * e1000_retry_write_flash_byte_ich8lan - Writes a single byte to NVM
+ * @hw: pointer to the HW structure
+ * @offset: The offset of the byte to write.
+ * @byte: The byte to write to the NVM.
+ *
+ * Writes a single byte to the NVM using the flash access registers.
+ * Goes through a retry algorithm before giving up.
+ **/
+static s32 e1000_retry_write_flash_byte_ich8lan(struct e1000_hw *hw,
+ u32 offset, u8 byte)
+{
+ s32 ret_val;
+ u16 program_retries;
+
+ ret_val = e1000_write_flash_byte_ich8lan(hw, offset, byte);
+ if (!ret_val)
+ return ret_val;
+
+ for (program_retries = 0; program_retries < 100; program_retries++) {
+ e_dbg("Retrying Byte %2.2X at offset %u\n", byte, offset);
+ usleep_range(100, 200);
+ ret_val = e1000_write_flash_byte_ich8lan(hw, offset, byte);
+ if (!ret_val)
+ break;
+ }
+ if (program_retries == 100)
+ return -E1000_ERR_NVM;
+
+ return 0;
+}
+
+/**
+ * e1000_erase_flash_bank_ich8lan - Erase a bank (4k) from NVM
+ * @hw: pointer to the HW structure
+ * @bank: 0 for first bank, 1 for second bank, etc.
+ *
+ * Erases the bank specified. Each bank is a 4k block. Banks are 0 based.
+ * bank N is 4096 * N + flash_reg_addr.
+ **/
+static s32 e1000_erase_flash_bank_ich8lan(struct e1000_hw *hw, u32 bank)
+{
+ struct e1000_nvm_info *nvm = &hw->nvm;
+ union ich8_hws_flash_status hsfsts;
+ union ich8_hws_flash_ctrl hsflctl;
+ u32 flash_linear_addr;
+ /* bank size is in 16bit words - adjust to bytes */
+ u32 flash_bank_size = nvm->flash_bank_size * 2;
+ s32 ret_val;
+ s32 count = 0;
+ s32 j, iteration, sector_size;
+
+ hsfsts.regval = er16flash(ICH_FLASH_HSFSTS);
+
+ /* Determine HW Sector size: Read BERASE bits of hw flash status
+ * register
+ * 00: The Hw sector is 256 bytes, hence we need to erase 16
+ * consecutive sectors. The start index for the nth Hw sector
+ * can be calculated as = bank * 4096 + n * 256
+ * 01: The Hw sector is 4K bytes, hence we need to erase 1 sector.
+ * The start index for the nth Hw sector can be calculated
+ * as = bank * 4096
+ * 10: The Hw sector is 8K bytes, nth sector = bank * 8192
+ * (ich9 only, otherwise error condition)
+ * 11: The Hw sector is 64K bytes, nth sector = bank * 65536
+ */
+ switch (hsfsts.hsf_status.berasesz) {
+ case 0:
+ /* Hw sector size 256 */
+ sector_size = ICH_FLASH_SEG_SIZE_256;
+ iteration = flash_bank_size / ICH_FLASH_SEG_SIZE_256;
+ break;
+ case 1:
+ sector_size = ICH_FLASH_SEG_SIZE_4K;
+ iteration = 1;
+ break;
+ case 2:
+ sector_size = ICH_FLASH_SEG_SIZE_8K;
+ iteration = 1;
+ break;
+ case 3:
+ sector_size = ICH_FLASH_SEG_SIZE_64K;
+ iteration = 1;
+ break;
+ default:
+ return -E1000_ERR_NVM;
+ }
+
+ /* Start with the base address, then add the sector offset. */
+ flash_linear_addr = hw->nvm.flash_base_addr;
+ flash_linear_addr += (bank) ? flash_bank_size : 0;
+
+ for (j = 0; j < iteration; j++) {
+ do {
+ u32 timeout = ICH_FLASH_ERASE_COMMAND_TIMEOUT;
+
+ /* Steps */
+ ret_val = e1000_flash_cycle_init_ich8lan(hw);
+ if (ret_val)
+ return ret_val;
+
+ /* Write a value 11 (block Erase) in Flash
+ * Cycle field in hw flash control
+ */
+ if (hw->mac.type >= e1000_pch_spt)
+ hsflctl.regval =
+ er32flash(ICH_FLASH_HSFSTS) >> 16;
+ else
+ hsflctl.regval = er16flash(ICH_FLASH_HSFCTL);
+
+ hsflctl.hsf_ctrl.flcycle = ICH_CYCLE_ERASE;
+ if (hw->mac.type >= e1000_pch_spt)
+ ew32flash(ICH_FLASH_HSFSTS,
+ hsflctl.regval << 16);
+ else
+ ew16flash(ICH_FLASH_HSFCTL, hsflctl.regval);
+
+ /* Write the last 24 bits of an index within the
+ * block into Flash Linear address field in Flash
+ * Address.
+ */
+ flash_linear_addr += (j * sector_size);
+ ew32flash(ICH_FLASH_FADDR, flash_linear_addr);
+
+ ret_val = e1000_flash_cycle_ich8lan(hw, timeout);
+ if (!ret_val)
+ break;
+
+ /* Check if FCERR is set to 1. If 1,
+ * clear it and try the whole sequence
+ * a few more times else Done
+ */
+ hsfsts.regval = er16flash(ICH_FLASH_HSFSTS);
+ if (hsfsts.hsf_status.flcerr)
+ /* repeat for some time before giving up */
+ continue;
+ else if (!hsfsts.hsf_status.flcdone)
+ return ret_val;
+ } while (++count < ICH_FLASH_CYCLE_REPEAT_COUNT);
+ }
+
+ return 0;
+}
+
+/**
+ * e1000_valid_led_default_ich8lan - Set the default LED settings
+ * @hw: pointer to the HW structure
+ * @data: Pointer to the LED settings
+ *
+ * Reads the LED default settings from the NVM to data. If the NVM LED
+ * settings is all 0's or F's, set the LED default to a valid LED default
+ * setting.
+ **/
+static s32 e1000_valid_led_default_ich8lan(struct e1000_hw *hw, u16 *data)
+{
+ s32 ret_val;
+
+ ret_val = e1000_read_nvm(hw, NVM_ID_LED_SETTINGS, 1, data);
+ if (ret_val) {
+ e_dbg("NVM Read Error\n");
+ return ret_val;
+ }
+
+ if (*data == ID_LED_RESERVED_0000 || *data == ID_LED_RESERVED_FFFF)
+ *data = ID_LED_DEFAULT_ICH8LAN;
+
+ return 0;
+}
+
+/**
+ * e1000_id_led_init_pchlan - store LED configurations
+ * @hw: pointer to the HW structure
+ *
+ * PCH does not control LEDs via the LEDCTL register, rather it uses
+ * the PHY LED configuration register.
+ *
+ * PCH also does not have an "always on" or "always off" mode which
+ * complicates the ID feature. Instead of using the "on" mode to indicate
+ * in ledctl_mode2 the LEDs to use for ID (see e1000e_id_led_init_generic()),
+ * use "link_up" mode. The LEDs will still ID on request if there is no
+ * link based on logic in e1000_led_[on|off]_pchlan().
+ **/
+static s32 e1000_id_led_init_pchlan(struct e1000_hw *hw)
+{
+ struct e1000_mac_info *mac = &hw->mac;
+ s32 ret_val;
+ const u32 ledctl_on = E1000_LEDCTL_MODE_LINK_UP;
+ const u32 ledctl_off = E1000_LEDCTL_MODE_LINK_UP | E1000_PHY_LED0_IVRT;
+ u16 data, i, temp, shift;
+
+ /* Get default ID LED modes */
+ ret_val = hw->nvm.ops.valid_led_default(hw, &data);
+ if (ret_val)
+ return ret_val;
+
+ mac->ledctl_default = er32(LEDCTL);
+ mac->ledctl_mode1 = mac->ledctl_default;
+ mac->ledctl_mode2 = mac->ledctl_default;
+
+ for (i = 0; i < 4; i++) {
+ temp = (data >> (i << 2)) & E1000_LEDCTL_LED0_MODE_MASK;
+ shift = (i * 5);
+ switch (temp) {
+ case ID_LED_ON1_DEF2:
+ case ID_LED_ON1_ON2:
+ case ID_LED_ON1_OFF2:
+ mac->ledctl_mode1 &= ~(E1000_PHY_LED0_MASK << shift);
+ mac->ledctl_mode1 |= (ledctl_on << shift);
+ break;
+ case ID_LED_OFF1_DEF2:
+ case ID_LED_OFF1_ON2:
+ case ID_LED_OFF1_OFF2:
+ mac->ledctl_mode1 &= ~(E1000_PHY_LED0_MASK << shift);
+ mac->ledctl_mode1 |= (ledctl_off << shift);
+ break;
+ default:
+ /* Do nothing */
+ break;
+ }
+ switch (temp) {
+ case ID_LED_DEF1_ON2:
+ case ID_LED_ON1_ON2:
+ case ID_LED_OFF1_ON2:
+ mac->ledctl_mode2 &= ~(E1000_PHY_LED0_MASK << shift);
+ mac->ledctl_mode2 |= (ledctl_on << shift);
+ break;
+ case ID_LED_DEF1_OFF2:
+ case ID_LED_ON1_OFF2:
+ case ID_LED_OFF1_OFF2:
+ mac->ledctl_mode2 &= ~(E1000_PHY_LED0_MASK << shift);
+ mac->ledctl_mode2 |= (ledctl_off << shift);
+ break;
+ default:
+ /* Do nothing */
+ break;
+ }
+ }
+
+ return 0;
+}
+
+/**
+ * e1000_get_bus_info_ich8lan - Get/Set the bus type and width
+ * @hw: pointer to the HW structure
+ *
+ * ICH8 use the PCI Express bus, but does not contain a PCI Express Capability
+ * register, so the the bus width is hard coded.
+ **/
+static s32 e1000_get_bus_info_ich8lan(struct e1000_hw *hw)
+{
+ struct e1000_bus_info *bus = &hw->bus;
+ s32 ret_val;
+
+ ret_val = e1000e_get_bus_info_pcie(hw);
+
+ /* ICH devices are "PCI Express"-ish. They have
+ * a configuration space, but do not contain
+ * PCI Express Capability registers, so bus width
+ * must be hardcoded.
+ */
+ if (bus->width == e1000_bus_width_unknown)
+ bus->width = e1000_bus_width_pcie_x1;
+
+ return ret_val;
+}
+
+/**
+ * e1000_reset_hw_ich8lan - Reset the hardware
+ * @hw: pointer to the HW structure
+ *
+ * Does a full reset of the hardware which includes a reset of the PHY and
+ * MAC.
+ **/
+static s32 e1000_reset_hw_ich8lan(struct e1000_hw *hw)
+{
+ struct e1000_dev_spec_ich8lan *dev_spec = &hw->dev_spec.ich8lan;
+ u16 kum_cfg;
+ u32 ctrl, reg;
+ s32 ret_val;
+ u16 pci_cfg;
+
+ /* Prevent the PCI-E bus from sticking if there is no TLP connection
+ * on the last TLP read/write transaction when MAC is reset.
+ */
+ ret_val = e1000e_disable_pcie_master(hw);
+ if (ret_val)
+ e_dbg("PCI-E Master disable polling has failed.\n");
+
+ e_dbg("Masking off all interrupts\n");
+ ew32(IMC, 0xffffffff);
+
+ /* Disable the Transmit and Receive units. Then delay to allow
+ * any pending transactions to complete before we hit the MAC
+ * with the global reset.
+ */
+ ew32(RCTL, 0);
+ ew32(TCTL, E1000_TCTL_PSP);
+ e1e_flush();
+
+ usleep_range(10000, 20000);
+
+ /* Workaround for ICH8 bit corruption issue in FIFO memory */
+ if (hw->mac.type == e1000_ich8lan) {
+ /* Set Tx and Rx buffer allocation to 8k apiece. */
+ ew32(PBA, E1000_PBA_8K);
+ /* Set Packet Buffer Size to 16k. */
+ ew32(PBS, E1000_PBS_16K);
+ }
+
+ if (hw->mac.type == e1000_pchlan) {
+ /* Save the NVM K1 bit setting */
+ ret_val = e1000_read_nvm(hw, E1000_NVM_K1_CONFIG, 1, &kum_cfg);
+ if (ret_val)
+ return ret_val;
+
+ if (kum_cfg & E1000_NVM_K1_ENABLE)
+ dev_spec->nvm_k1_enabled = true;
+ else
+ dev_spec->nvm_k1_enabled = false;
+ }
+
+ ctrl = er32(CTRL);
+
+ if (!hw->phy.ops.check_reset_block(hw)) {
+ /* Full-chip reset requires MAC and PHY reset at the same
+ * time to make sure the interface between MAC and the
+ * external PHY is reset.
+ */
+ ctrl |= E1000_CTRL_PHY_RST;
+
+ /* Gate automatic PHY configuration by hardware on
+ * non-managed 82579
+ */
+ if ((hw->mac.type == e1000_pch2lan) &&
+ !(er32(FWSM) & E1000_ICH_FWSM_FW_VALID))
+ e1000_gate_hw_phy_config_ich8lan(hw, true);
+ }
+ ret_val = e1000_acquire_swflag_ich8lan(hw);
+
+ /* Read from EXTCNF_CTRL in e1000_acquire_swflag_ich8lan function
+ * may occur during global reset and cause system hang.
+ * Configuration space access creates the needed delay.
+ * Write to E1000_STRAP RO register E1000_PCI_VENDOR_ID_REGISTER value
+ * insures configuration space read is done before global reset.
+ */
+ pci_read_config_word(hw->adapter->pdev, E1000_PCI_VENDOR_ID_REGISTER,
+ &pci_cfg);
+ ew32(STRAP, pci_cfg);
+ e_dbg("Issuing a global reset to ich8lan\n");
+ ew32(CTRL, (ctrl | E1000_CTRL_RST));
+ /* cannot issue a flush here because it hangs the hardware */
+ msleep(20);
+
+ /* Configuration space access improve HW level time sync mechanism.
+ * Write to E1000_STRAP RO register E1000_PCI_VENDOR_ID_REGISTER
+ * value to insure configuration space read is done
+ * before any access to mac register.
+ */
+ pci_read_config_word(hw->adapter->pdev, E1000_PCI_VENDOR_ID_REGISTER,
+ &pci_cfg);
+ ew32(STRAP, pci_cfg);
+
+ /* Set Phy Config Counter to 50msec */
+ if (hw->mac.type == e1000_pch2lan) {
+ reg = er32(FEXTNVM3);
+ reg &= ~E1000_FEXTNVM3_PHY_CFG_COUNTER_MASK;
+ reg |= E1000_FEXTNVM3_PHY_CFG_COUNTER_50MSEC;
+ ew32(FEXTNVM3, reg);
+ }
+
+ if (!ret_val)
+ clear_bit(__E1000_ACCESS_SHARED_RESOURCE, &hw->adapter->state);
+
+ if (ctrl & E1000_CTRL_PHY_RST) {
+ ret_val = hw->phy.ops.get_cfg_done(hw);
+ if (ret_val)
+ return ret_val;
+
+ ret_val = e1000_post_phy_reset_ich8lan(hw);
+ if (ret_val)
+ return ret_val;
+ }
+
+ /* For PCH, this write will make sure that any noise
+ * will be detected as a CRC error and be dropped rather than show up
+ * as a bad packet to the DMA engine.
+ */
+ if (hw->mac.type == e1000_pchlan)
+ ew32(CRC_OFFSET, 0x65656565);
+
+ ew32(IMC, 0xffffffff);
+ er32(ICR);
+
+ reg = er32(KABGTXD);
+ reg |= E1000_KABGTXD_BGSQLBIAS;
+ ew32(KABGTXD, reg);
+
+ return 0;
+}
+
+/**
+ * e1000_init_hw_ich8lan - Initialize the hardware
+ * @hw: pointer to the HW structure
+ *
+ * Prepares the hardware for transmit and receive by doing the following:
+ * - initialize hardware bits
+ * - initialize LED identification
+ * - setup receive address registers
+ * - setup flow control
+ * - setup transmit descriptors
+ * - clear statistics
+ **/
+static s32 e1000_init_hw_ich8lan(struct e1000_hw *hw)
+{
+ struct e1000_mac_info *mac = &hw->mac;
+ u32 ctrl_ext, txdctl, snoop;
+ s32 ret_val;
+ u16 i;
+
+ e1000_initialize_hw_bits_ich8lan(hw);
+
+ /* Initialize identification LED */
+ ret_val = mac->ops.id_led_init(hw);
+ /* An error is not fatal and we should not stop init due to this */
+ if (ret_val)
+ e_dbg("Error initializing identification LED\n");
+
+ /* Setup the receive address. */
+ e1000e_init_rx_addrs(hw, mac->rar_entry_count);
+
+ /* Zero out the Multicast HASH table */
+ e_dbg("Zeroing the MTA\n");
+ for (i = 0; i < mac->mta_reg_count; i++)
+ E1000_WRITE_REG_ARRAY(hw, E1000_MTA, i, 0);
+
+ /* The 82578 Rx buffer will stall if wakeup is enabled in host and
+ * the ME. Disable wakeup by clearing the host wakeup bit.
+ * Reset the phy after disabling host wakeup to reset the Rx buffer.
+ */
+ if (hw->phy.type == e1000_phy_82578) {
+ e1e_rphy(hw, BM_PORT_GEN_CFG, &i);
+ i &= ~BM_WUC_HOST_WU_BIT;
+ e1e_wphy(hw, BM_PORT_GEN_CFG, i);
+ ret_val = e1000_phy_hw_reset_ich8lan(hw);
+ if (ret_val)
+ return ret_val;
+ }
+
+ /* Setup link and flow control */
+ ret_val = mac->ops.setup_link(hw);
+
+ /* Set the transmit descriptor write-back policy for both queues */
+ txdctl = er32(TXDCTL(0));
+ txdctl = ((txdctl & ~E1000_TXDCTL_WTHRESH) |
+ E1000_TXDCTL_FULL_TX_DESC_WB);
+ txdctl = ((txdctl & ~E1000_TXDCTL_PTHRESH) |
+ E1000_TXDCTL_MAX_TX_DESC_PREFETCH);
+ ew32(TXDCTL(0), txdctl);
+ txdctl = er32(TXDCTL(1));
+ txdctl = ((txdctl & ~E1000_TXDCTL_WTHRESH) |
+ E1000_TXDCTL_FULL_TX_DESC_WB);
+ txdctl = ((txdctl & ~E1000_TXDCTL_PTHRESH) |
+ E1000_TXDCTL_MAX_TX_DESC_PREFETCH);
+ ew32(TXDCTL(1), txdctl);
+
+ /* ICH8 has opposite polarity of no_snoop bits.
+ * By default, we should use snoop behavior.
+ */
+ if (mac->type == e1000_ich8lan)
+ snoop = PCIE_ICH8_SNOOP_ALL;
+ else
+ snoop = (u32)~(PCIE_NO_SNOOP_ALL);
+ e1000e_set_pcie_no_snoop(hw, snoop);
+
+ ctrl_ext = er32(CTRL_EXT);
+ ctrl_ext |= E1000_CTRL_EXT_RO_DIS;
+ ew32(CTRL_EXT, ctrl_ext);
+
+ /* Clear all of the statistics registers (clear on read). It is
+ * important that we do this after we have tried to establish link
+ * because the symbol error count will increment wildly if there
+ * is no link.
+ */
+ e1000_clear_hw_cntrs_ich8lan(hw);
+
+ return ret_val;
+}
+
+/**
+ * e1000_initialize_hw_bits_ich8lan - Initialize required hardware bits
+ * @hw: pointer to the HW structure
+ *
+ * Sets/Clears required hardware bits necessary for correctly setting up the
+ * hardware for transmit and receive.
+ **/
+static void e1000_initialize_hw_bits_ich8lan(struct e1000_hw *hw)
+{
+ u32 reg;
+
+ /* Extended Device Control */
+ reg = er32(CTRL_EXT);
+ reg |= (1 << 22);
+ /* Enable PHY low-power state when MAC is at D3 w/o WoL */
+ if (hw->mac.type >= e1000_pchlan)
+ reg |= E1000_CTRL_EXT_PHYPDEN;
+ ew32(CTRL_EXT, reg);
+
+ /* Transmit Descriptor Control 0 */
+ reg = er32(TXDCTL(0));
+ reg |= (1 << 22);
+ ew32(TXDCTL(0), reg);
+
+ /* Transmit Descriptor Control 1 */
+ reg = er32(TXDCTL(1));
+ reg |= (1 << 22);
+ ew32(TXDCTL(1), reg);
+
+ /* Transmit Arbitration Control 0 */
+ reg = er32(TARC(0));
+ if (hw->mac.type == e1000_ich8lan)
+ reg |= (1 << 28) | (1 << 29);
+ reg |= (1 << 23) | (1 << 24) | (1 << 26) | (1 << 27);
+ ew32(TARC(0), reg);
+
+ /* Transmit Arbitration Control 1 */
+ reg = er32(TARC(1));
+ if (er32(TCTL) & E1000_TCTL_MULR)
+ reg &= ~(1 << 28);
+ else
+ reg |= (1 << 28);
+ reg |= (1 << 24) | (1 << 26) | (1 << 30);
+ ew32(TARC(1), reg);
+
+ /* Device Status */
+ if (hw->mac.type == e1000_ich8lan) {
+ reg = er32(STATUS);
+ reg &= ~(1 << 31);
+ ew32(STATUS, reg);
+ }
+
+ /* work-around descriptor data corruption issue during nfs v2 udp
+ * traffic, just disable the nfs filtering capability
+ */
+ reg = er32(RFCTL);
+ reg |= (E1000_RFCTL_NFSW_DIS | E1000_RFCTL_NFSR_DIS);
+
+ /* Disable IPv6 extension header parsing because some malformed
+ * IPv6 headers can hang the Rx.
+ */
+ if (hw->mac.type == e1000_ich8lan)
+ reg |= (E1000_RFCTL_IPV6_EX_DIS | E1000_RFCTL_NEW_IPV6_EXT_DIS);
+ ew32(RFCTL, reg);
+
+ /* Enable ECC on Lynxpoint */
+ if (hw->mac.type >= e1000_pch_lpt) {
+ reg = er32(PBECCSTS);
+ reg |= E1000_PBECCSTS_ECC_ENABLE;
+ ew32(PBECCSTS, reg);
+
+ reg = er32(CTRL);
+ reg |= E1000_CTRL_MEHE;
+ ew32(CTRL, reg);
+ }
+}
+
+/**
+ * e1000_setup_link_ich8lan - Setup flow control and link settings
+ * @hw: pointer to the HW structure
+ *
+ * Determines which flow control settings to use, then configures flow
+ * control. Calls the appropriate media-specific link configuration
+ * function. Assuming the adapter has a valid link partner, a valid link
+ * should be established. Assumes the hardware has previously been reset
+ * and the transmitter and receiver are not enabled.
+ **/
+static s32 e1000_setup_link_ich8lan(struct e1000_hw *hw)
+{
+ s32 ret_val;
+
+ /* ICH parts do not have a word in the NVM to determine
+ * the default flow control setting, so we explicitly
+ * set it to full.
+ */
+ if (hw->fc.requested_mode == e1000_fc_default) {
+ /* Workaround h/w hang when Tx flow control enabled */
+ if (hw->mac.type == e1000_pchlan)
+ hw->fc.requested_mode = e1000_fc_rx_pause;
+ else
+ hw->fc.requested_mode = e1000_fc_full;
+ }
+
+ /* Save off the requested flow control mode for use later. Depending
+ * on the link partner's capabilities, we may or may not use this mode.
+ */
+ hw->fc.current_mode = hw->fc.requested_mode;
+
+ e_dbg("After fix-ups FlowControl is now = %x\n", hw->fc.current_mode);
+
+ if (!hw->phy.ops.check_reset_block(hw)) {
+ /* Continue to configure the copper link. */
+ ret_val = hw->mac.ops.setup_physical_interface(hw);
+ if (ret_val)
+ return ret_val;
+ }
+
+ ew32(FCTTV, hw->fc.pause_time);
+ if ((hw->phy.type == e1000_phy_82578) ||
+ (hw->phy.type == e1000_phy_82579) ||
+ (hw->phy.type == e1000_phy_i217) ||
+ (hw->phy.type == e1000_phy_82577)) {
+ ew32(FCRTV_PCH, hw->fc.refresh_time);
+
+ ret_val = e1e_wphy(hw,
+ PHY_REG(BM_PORT_CTRL_PAGE, 27),
+ hw->fc.pause_time);
+ if (ret_val)
+ return ret_val;
+ }
+
+ return e1000e_set_fc_watermarks(hw);
+}
+
+/**
+ * e1000_setup_copper_link_ich8lan - Configure MAC/PHY interface
+ * @hw: pointer to the HW structure
+ *
+ * Configures the kumeran interface to the PHY to wait the appropriate time
+ * when polling the PHY, then call the generic setup_copper_link to finish
+ * configuring the copper link.
+ **/
+static s32 e1000_setup_copper_link_ich8lan(struct e1000_hw *hw)
+{
+ u32 ctrl;
+ s32 ret_val;
+ u16 reg_data;
+
+ ctrl = er32(CTRL);
+ ctrl |= E1000_CTRL_SLU;
+ ctrl &= ~(E1000_CTRL_FRCSPD | E1000_CTRL_FRCDPX);
+ ew32(CTRL, ctrl);
+
+ /* Set the mac to wait the maximum time between each iteration
+ * and increase the max iterations when polling the phy;
+ * this fixes erroneous timeouts at 10Mbps.
+ */
+ ret_val = e1000e_write_kmrn_reg(hw, E1000_KMRNCTRLSTA_TIMEOUTS, 0xFFFF);
+ if (ret_val)
+ return ret_val;
+ ret_val = e1000e_read_kmrn_reg(hw,
+ E1000_KMRNCTRLSTA_INBAND_PARAM,
+ &reg_data);
+ if (ret_val)
+ return ret_val;
+ reg_data |= 0x3F;
+ ret_val = e1000e_write_kmrn_reg(hw,
+ E1000_KMRNCTRLSTA_INBAND_PARAM,
+ reg_data);
+ if (ret_val)
+ return ret_val;
+
+ switch (hw->phy.type) {
+ case e1000_phy_igp_3:
+ ret_val = e1000e_copper_link_setup_igp(hw);
+ if (ret_val)
+ return ret_val;
+ break;
+ case e1000_phy_bm:
+ case e1000_phy_82578:
+ ret_val = e1000e_copper_link_setup_m88(hw);
+ if (ret_val)
+ return ret_val;
+ break;
+ case e1000_phy_82577:
+ case e1000_phy_82579:
+ ret_val = e1000_copper_link_setup_82577(hw);
+ if (ret_val)
+ return ret_val;
+ break;
+ case e1000_phy_ife:
+ ret_val = e1e_rphy(hw, IFE_PHY_MDIX_CONTROL, &reg_data);
+ if (ret_val)
+ return ret_val;
+
+ reg_data &= ~IFE_PMC_AUTO_MDIX;
+
+ switch (hw->phy.mdix) {
+ case 1:
+ reg_data &= ~IFE_PMC_FORCE_MDIX;
+ break;
+ case 2:
+ reg_data |= IFE_PMC_FORCE_MDIX;
+ break;
+ case 0:
+ default:
+ reg_data |= IFE_PMC_AUTO_MDIX;
+ break;
+ }
+ ret_val = e1e_wphy(hw, IFE_PHY_MDIX_CONTROL, reg_data);
+ if (ret_val)
+ return ret_val;
+ break;
+ default:
+ break;
+ }
+
+ return e1000e_setup_copper_link(hw);
+}
+
+/**
+ * e1000_setup_copper_link_pch_lpt - Configure MAC/PHY interface
+ * @hw: pointer to the HW structure
+ *
+ * Calls the PHY specific link setup function and then calls the
+ * generic setup_copper_link to finish configuring the link for
+ * Lynxpoint PCH devices
+ **/
+static s32 e1000_setup_copper_link_pch_lpt(struct e1000_hw *hw)
+{
+ u32 ctrl;
+ s32 ret_val;
+
+ ctrl = er32(CTRL);
+ ctrl |= E1000_CTRL_SLU;
+ ctrl &= ~(E1000_CTRL_FRCSPD | E1000_CTRL_FRCDPX);
+ ew32(CTRL, ctrl);
+
+ ret_val = e1000_copper_link_setup_82577(hw);
+ if (ret_val)
+ return ret_val;
+
+ return e1000e_setup_copper_link(hw);
+}
+
+/**
+ * e1000_get_link_up_info_ich8lan - Get current link speed and duplex
+ * @hw: pointer to the HW structure
+ * @speed: pointer to store current link speed
+ * @duplex: pointer to store the current link duplex
+ *
+ * Calls the generic get_speed_and_duplex to retrieve the current link
+ * information and then calls the Kumeran lock loss workaround for links at
+ * gigabit speeds.
+ **/
+static s32 e1000_get_link_up_info_ich8lan(struct e1000_hw *hw, u16 *speed,
+ u16 *duplex)
+{
+ s32 ret_val;
+
+ ret_val = e1000e_get_speed_and_duplex_copper(hw, speed, duplex);
+ if (ret_val)
+ return ret_val;
+
+ if ((hw->mac.type == e1000_ich8lan) &&
+ (hw->phy.type == e1000_phy_igp_3) && (*speed == SPEED_1000)) {
+ ret_val = e1000_kmrn_lock_loss_workaround_ich8lan(hw);
+ }
+
+ return ret_val;
+}
+
+/**
+ * e1000_kmrn_lock_loss_workaround_ich8lan - Kumeran workaround
+ * @hw: pointer to the HW structure
+ *
+ * Work-around for 82566 Kumeran PCS lock loss:
+ * On link status change (i.e. PCI reset, speed change) and link is up and
+ * speed is gigabit-
+ * 0) if workaround is optionally disabled do nothing
+ * 1) wait 1ms for Kumeran link to come up
+ * 2) check Kumeran Diagnostic register PCS lock loss bit
+ * 3) if not set the link is locked (all is good), otherwise...
+ * 4) reset the PHY
+ * 5) repeat up to 10 times
+ * Note: this is only called for IGP3 copper when speed is 1gb.
+ **/
+static s32 e1000_kmrn_lock_loss_workaround_ich8lan(struct e1000_hw *hw)
+{
+ struct e1000_dev_spec_ich8lan *dev_spec = &hw->dev_spec.ich8lan;
+ u32 phy_ctrl;
+ s32 ret_val;
+ u16 i, data;
+ bool link;
+
+ if (!dev_spec->kmrn_lock_loss_workaround_enabled)
+ return 0;
+
+ /* Make sure link is up before proceeding. If not just return.
+ * Attempting this while link is negotiating fouled up link
+ * stability
+ */
+ ret_val = e1000e_phy_has_link_generic(hw, 1, 0, &link);
+ if (!link)
+ return 0;
+
+ for (i = 0; i < 10; i++) {
+ /* read once to clear */
+ ret_val = e1e_rphy(hw, IGP3_KMRN_DIAG, &data);
+ if (ret_val)
+ return ret_val;
+ /* and again to get new status */
+ ret_val = e1e_rphy(hw, IGP3_KMRN_DIAG, &data);
+ if (ret_val)
+ return ret_val;
+
+ /* check for PCS lock */
+ if (!(data & IGP3_KMRN_DIAG_PCS_LOCK_LOSS))
+ return 0;
+
+ /* Issue PHY reset */
+ e1000_phy_hw_reset(hw);
+ mdelay(5);
+ }
+ /* Disable GigE link negotiation */
+ phy_ctrl = er32(PHY_CTRL);
+ phy_ctrl |= (E1000_PHY_CTRL_GBE_DISABLE |
+ E1000_PHY_CTRL_NOND0A_GBE_DISABLE);
+ ew32(PHY_CTRL, phy_ctrl);
+
+ /* Call gig speed drop workaround on Gig disable before accessing
+ * any PHY registers
+ */
+ e1000e_gig_downshift_workaround_ich8lan(hw);
+
+ /* unable to acquire PCS lock */
+ return -E1000_ERR_PHY;
+}
+
+/**
+ * e1000e_set_kmrn_lock_loss_workaround_ich8lan - Set Kumeran workaround state
+ * @hw: pointer to the HW structure
+ * @state: boolean value used to set the current Kumeran workaround state
+ *
+ * If ICH8, set the current Kumeran workaround state (enabled - true
+ * /disabled - false).
+ **/
+void e1000e_set_kmrn_lock_loss_workaround_ich8lan(struct e1000_hw *hw,
+ bool state)
+{
+ struct e1000_dev_spec_ich8lan *dev_spec = &hw->dev_spec.ich8lan;
+
+ if (hw->mac.type != e1000_ich8lan) {
+ e_dbg("Workaround applies to ICH8 only.\n");
+ return;
+ }
+
+ dev_spec->kmrn_lock_loss_workaround_enabled = state;
+}
+
+/**
+ * e1000_ipg3_phy_powerdown_workaround_ich8lan - Power down workaround on D3
+ * @hw: pointer to the HW structure
+ *
+ * Workaround for 82566 power-down on D3 entry:
+ * 1) disable gigabit link
+ * 2) write VR power-down enable
+ * 3) read it back
+ * Continue if successful, else issue LCD reset and repeat
+ **/
+void e1000e_igp3_phy_powerdown_workaround_ich8lan(struct e1000_hw *hw)
+{
+ u32 reg;
+ u16 data;
+ u8 retry = 0;
+
+ if (hw->phy.type != e1000_phy_igp_3)
+ return;
+
+ /* Try the workaround twice (if needed) */
+ do {
+ /* Disable link */
+ reg = er32(PHY_CTRL);
+ reg |= (E1000_PHY_CTRL_GBE_DISABLE |
+ E1000_PHY_CTRL_NOND0A_GBE_DISABLE);
+ ew32(PHY_CTRL, reg);
+
+ /* Call gig speed drop workaround on Gig disable before
+ * accessing any PHY registers
+ */
+ if (hw->mac.type == e1000_ich8lan)
+ e1000e_gig_downshift_workaround_ich8lan(hw);
+
+ /* Write VR power-down enable */
+ e1e_rphy(hw, IGP3_VR_CTRL, &data);
+ data &= ~IGP3_VR_CTRL_DEV_POWERDOWN_MODE_MASK;
+ e1e_wphy(hw, IGP3_VR_CTRL, data | IGP3_VR_CTRL_MODE_SHUTDOWN);
+
+ /* Read it back and test */
+ e1e_rphy(hw, IGP3_VR_CTRL, &data);
+ data &= IGP3_VR_CTRL_DEV_POWERDOWN_MODE_MASK;
+ if ((data == IGP3_VR_CTRL_MODE_SHUTDOWN) || retry)
+ break;
+
+ /* Issue PHY reset and repeat at most one more time */
+ reg = er32(CTRL);
+ ew32(CTRL, reg | E1000_CTRL_PHY_RST);
+ retry++;
+ } while (retry);
+}
+
+/**
+ * e1000e_gig_downshift_workaround_ich8lan - WoL from S5 stops working
+ * @hw: pointer to the HW structure
+ *
+ * Steps to take when dropping from 1Gb/s (eg. link cable removal (LSC),
+ * LPLU, Gig disable, MDIC PHY reset):
+ * 1) Set Kumeran Near-end loopback
+ * 2) Clear Kumeran Near-end loopback
+ * Should only be called for ICH8[m] devices with any 1G Phy.
+ **/
+void e1000e_gig_downshift_workaround_ich8lan(struct e1000_hw *hw)
+{
+ s32 ret_val;
+ u16 reg_data;
+
+ if ((hw->mac.type != e1000_ich8lan) || (hw->phy.type == e1000_phy_ife))
+ return;
+
+ ret_val = e1000e_read_kmrn_reg(hw, E1000_KMRNCTRLSTA_DIAG_OFFSET,
+ &reg_data);
+ if (ret_val)
+ return;
+ reg_data |= E1000_KMRNCTRLSTA_DIAG_NELPBK;
+ ret_val = e1000e_write_kmrn_reg(hw,
+ E1000_KMRNCTRLSTA_DIAG_OFFSET,
+ reg_data);
+ if (ret_val)
+ return;
+ reg_data &= ~E1000_KMRNCTRLSTA_DIAG_NELPBK;
+ e1000e_write_kmrn_reg(hw, E1000_KMRNCTRLSTA_DIAG_OFFSET, reg_data);
+}
+
+/**
+ * e1000_suspend_workarounds_ich8lan - workarounds needed during S0->Sx
+ * @hw: pointer to the HW structure
+ *
+ * During S0 to Sx transition, it is possible the link remains at gig
+ * instead of negotiating to a lower speed. Before going to Sx, set
+ * 'Gig Disable' to force link speed negotiation to a lower speed based on
+ * the LPLU setting in the NVM or custom setting. For PCH and newer parts,
+ * the OEM bits PHY register (LED, GbE disable and LPLU configurations) also
+ * needs to be written.
+ * Parts that support (and are linked to a partner which support) EEE in
+ * 100Mbps should disable LPLU since 100Mbps w/ EEE requires less power
+ * than 10Mbps w/o EEE.
+ **/
+void e1000_suspend_workarounds_ich8lan(struct e1000_hw *hw)
+{
+ struct e1000_dev_spec_ich8lan *dev_spec = &hw->dev_spec.ich8lan;
+ u32 phy_ctrl;
+ s32 ret_val;
+
+ phy_ctrl = er32(PHY_CTRL);
+ phy_ctrl |= E1000_PHY_CTRL_GBE_DISABLE;
+
+ if (hw->phy.type == e1000_phy_i217) {
+ u16 phy_reg, device_id = hw->adapter->pdev->device;
+
+ if ((device_id == E1000_DEV_ID_PCH_LPTLP_I218_LM) ||
+ (device_id == E1000_DEV_ID_PCH_LPTLP_I218_V) ||
+ (device_id == E1000_DEV_ID_PCH_I218_LM3) ||
+ (device_id == E1000_DEV_ID_PCH_I218_V3) ||
+ (hw->mac.type >= e1000_pch_spt)) {
+ u32 fextnvm6 = er32(FEXTNVM6);
+
+ ew32(FEXTNVM6, fextnvm6 & ~E1000_FEXTNVM6_REQ_PLL_CLK);
+ }
+
+ ret_val = hw->phy.ops.acquire(hw);
+ if (ret_val)
+ goto out;
+
+ if (!dev_spec->eee_disable) {
+ u16 eee_advert;
+
+ ret_val =
+ e1000_read_emi_reg_locked(hw,
+ I217_EEE_ADVERTISEMENT,
+ &eee_advert);
+ if (ret_val)
+ goto release;
+
+ /* Disable LPLU if both link partners support 100BaseT
+ * EEE and 100Full is advertised on both ends of the
+ * link, and enable Auto Enable LPI since there will
+ * be no driver to enable LPI while in Sx.
+ */
+ if ((eee_advert & I82579_EEE_100_SUPPORTED) &&
+ (dev_spec->eee_lp_ability &
+ I82579_EEE_100_SUPPORTED) &&
+ (hw->phy.autoneg_advertised & ADVERTISE_100_FULL)) {
+ phy_ctrl &= ~(E1000_PHY_CTRL_D0A_LPLU |
+ E1000_PHY_CTRL_NOND0A_LPLU);
+
+ /* Set Auto Enable LPI after link up */
+ e1e_rphy_locked(hw,
+ I217_LPI_GPIO_CTRL, &phy_reg);
+ phy_reg |= I217_LPI_GPIO_CTRL_AUTO_EN_LPI;
+ e1e_wphy_locked(hw,
+ I217_LPI_GPIO_CTRL, phy_reg);
+ }
+ }
+
+ /* For i217 Intel Rapid Start Technology support,
+ * when the system is going into Sx and no manageability engine
+ * is present, the driver must configure proxy to reset only on
+ * power good. LPI (Low Power Idle) state must also reset only
+ * on power good, as well as the MTA (Multicast table array).
+ * The SMBus release must also be disabled on LCD reset.
+ */
+ if (!(er32(FWSM) & E1000_ICH_FWSM_FW_VALID)) {
+ /* Enable proxy to reset only on power good. */
+ e1e_rphy_locked(hw, I217_PROXY_CTRL, &phy_reg);
+ phy_reg |= I217_PROXY_CTRL_AUTO_DISABLE;
+ e1e_wphy_locked(hw, I217_PROXY_CTRL, phy_reg);
+
+ /* Set bit enable LPI (EEE) to reset only on
+ * power good.
+ */
+ e1e_rphy_locked(hw, I217_SxCTRL, &phy_reg);
+ phy_reg |= I217_SxCTRL_ENABLE_LPI_RESET;
+ e1e_wphy_locked(hw, I217_SxCTRL, phy_reg);
+
+ /* Disable the SMB release on LCD reset. */
+ e1e_rphy_locked(hw, I217_MEMPWR, &phy_reg);
+ phy_reg &= ~I217_MEMPWR_DISABLE_SMB_RELEASE;
+ e1e_wphy_locked(hw, I217_MEMPWR, phy_reg);
+ }
+
+ /* Enable MTA to reset for Intel Rapid Start Technology
+ * Support
+ */
+ e1e_rphy_locked(hw, I217_CGFREG, &phy_reg);
+ phy_reg |= I217_CGFREG_ENABLE_MTA_RESET;
+ e1e_wphy_locked(hw, I217_CGFREG, phy_reg);
+
+release:
+ hw->phy.ops.release(hw);
+ }
+out:
+ ew32(PHY_CTRL, phy_ctrl);
+
+ if (hw->mac.type == e1000_ich8lan)
+ e1000e_gig_downshift_workaround_ich8lan(hw);
+
+ if (hw->mac.type >= e1000_pchlan) {
+ e1000_oem_bits_config_ich8lan(hw, false);
+
+ /* Reset PHY to activate OEM bits on 82577/8 */
+ if (hw->mac.type == e1000_pchlan)
+ e1000e_phy_hw_reset_generic(hw);
+
+ ret_val = hw->phy.ops.acquire(hw);
+ if (ret_val)
+ return;
+ e1000_write_smbus_addr(hw);
+ hw->phy.ops.release(hw);
+ }
+}
+
+/**
+ * e1000_resume_workarounds_pchlan - workarounds needed during Sx->S0
+ * @hw: pointer to the HW structure
+ *
+ * During Sx to S0 transitions on non-managed devices or managed devices
+ * on which PHY resets are not blocked, if the PHY registers cannot be
+ * accessed properly by the s/w toggle the LANPHYPC value to power cycle
+ * the PHY.
+ * On i217, setup Intel Rapid Start Technology.
+ **/
+void e1000_resume_workarounds_pchlan(struct e1000_hw *hw)
+{
+ s32 ret_val;
+
+ if (hw->mac.type < e1000_pch2lan)
+ return;
+
+ ret_val = e1000_init_phy_workarounds_pchlan(hw);
+ if (ret_val) {
+ e_dbg("Failed to init PHY flow ret_val=%d\n", ret_val);
+ return;
+ }
+
+ /* For i217 Intel Rapid Start Technology support when the system
+ * is transitioning from Sx and no manageability engine is present
+ * configure SMBus to restore on reset, disable proxy, and enable
+ * the reset on MTA (Multicast table array).
+ */
+ if (hw->phy.type == e1000_phy_i217) {
+ u16 phy_reg;
+
+ ret_val = hw->phy.ops.acquire(hw);
+ if (ret_val) {
+ e_dbg("Failed to setup iRST\n");
+ return;
+ }
+
+ /* Clear Auto Enable LPI after link up */
+ e1e_rphy_locked(hw, I217_LPI_GPIO_CTRL, &phy_reg);
+ phy_reg &= ~I217_LPI_GPIO_CTRL_AUTO_EN_LPI;
+ e1e_wphy_locked(hw, I217_LPI_GPIO_CTRL, phy_reg);
+
+ if (!(er32(FWSM) & E1000_ICH_FWSM_FW_VALID)) {
+ /* Restore clear on SMB if no manageability engine
+ * is present
+ */
+ ret_val = e1e_rphy_locked(hw, I217_MEMPWR, &phy_reg);
+ if (ret_val)
+ goto release;
+ phy_reg |= I217_MEMPWR_DISABLE_SMB_RELEASE;
+ e1e_wphy_locked(hw, I217_MEMPWR, phy_reg);
+
+ /* Disable Proxy */
+ e1e_wphy_locked(hw, I217_PROXY_CTRL, 0);
+ }
+ /* Enable reset on MTA */
+ ret_val = e1e_rphy_locked(hw, I217_CGFREG, &phy_reg);
+ if (ret_val)
+ goto release;
+ phy_reg &= ~I217_CGFREG_ENABLE_MTA_RESET;
+ e1e_wphy_locked(hw, I217_CGFREG, phy_reg);
+release:
+ if (ret_val)
+ e_dbg("Error %d in resume workarounds\n", ret_val);
+ hw->phy.ops.release(hw);
+ }
+}
+
+/**
+ * e1000_cleanup_led_ich8lan - Restore the default LED operation
+ * @hw: pointer to the HW structure
+ *
+ * Return the LED back to the default configuration.
+ **/
+static s32 e1000_cleanup_led_ich8lan(struct e1000_hw *hw)
+{
+ if (hw->phy.type == e1000_phy_ife)
+ return e1e_wphy(hw, IFE_PHY_SPECIAL_CONTROL_LED, 0);
+
+ ew32(LEDCTL, hw->mac.ledctl_default);
+ return 0;
+}
+
+/**
+ * e1000_led_on_ich8lan - Turn LEDs on
+ * @hw: pointer to the HW structure
+ *
+ * Turn on the LEDs.
+ **/
+static s32 e1000_led_on_ich8lan(struct e1000_hw *hw)
+{
+ if (hw->phy.type == e1000_phy_ife)
+ return e1e_wphy(hw, IFE_PHY_SPECIAL_CONTROL_LED,
+ (IFE_PSCL_PROBE_MODE | IFE_PSCL_PROBE_LEDS_ON));
+
+ ew32(LEDCTL, hw->mac.ledctl_mode2);
+ return 0;
+}
+
+/**
+ * e1000_led_off_ich8lan - Turn LEDs off
+ * @hw: pointer to the HW structure
+ *
+ * Turn off the LEDs.
+ **/
+static s32 e1000_led_off_ich8lan(struct e1000_hw *hw)
+{
+ if (hw->phy.type == e1000_phy_ife)
+ return e1e_wphy(hw, IFE_PHY_SPECIAL_CONTROL_LED,
+ (IFE_PSCL_PROBE_MODE |
+ IFE_PSCL_PROBE_LEDS_OFF));
+
+ ew32(LEDCTL, hw->mac.ledctl_mode1);
+ return 0;
+}
+
+/**
+ * e1000_setup_led_pchlan - Configures SW controllable LED
+ * @hw: pointer to the HW structure
+ *
+ * This prepares the SW controllable LED for use.
+ **/
+static s32 e1000_setup_led_pchlan(struct e1000_hw *hw)
+{
+ return e1e_wphy(hw, HV_LED_CONFIG, (u16)hw->mac.ledctl_mode1);
+}
+
+/**
+ * e1000_cleanup_led_pchlan - Restore the default LED operation
+ * @hw: pointer to the HW structure
+ *
+ * Return the LED back to the default configuration.
+ **/
+static s32 e1000_cleanup_led_pchlan(struct e1000_hw *hw)
+{
+ return e1e_wphy(hw, HV_LED_CONFIG, (u16)hw->mac.ledctl_default);
+}
+
+/**
+ * e1000_led_on_pchlan - Turn LEDs on
+ * @hw: pointer to the HW structure
+ *
+ * Turn on the LEDs.
+ **/
+static s32 e1000_led_on_pchlan(struct e1000_hw *hw)
+{
+ u16 data = (u16)hw->mac.ledctl_mode2;
+ u32 i, led;
+
+ /* If no link, then turn LED on by setting the invert bit
+ * for each LED that's mode is "link_up" in ledctl_mode2.
+ */
+ if (!(er32(STATUS) & E1000_STATUS_LU)) {
+ for (i = 0; i < 3; i++) {
+ led = (data >> (i * 5)) & E1000_PHY_LED0_MASK;
+ if ((led & E1000_PHY_LED0_MODE_MASK) !=
+ E1000_LEDCTL_MODE_LINK_UP)
+ continue;
+ if (led & E1000_PHY_LED0_IVRT)
+ data &= ~(E1000_PHY_LED0_IVRT << (i * 5));
+ else
+ data |= (E1000_PHY_LED0_IVRT << (i * 5));
+ }
+ }
+
+ return e1e_wphy(hw, HV_LED_CONFIG, data);
+}
+
+/**
+ * e1000_led_off_pchlan - Turn LEDs off
+ * @hw: pointer to the HW structure
+ *
+ * Turn off the LEDs.
+ **/
+static s32 e1000_led_off_pchlan(struct e1000_hw *hw)
+{
+ u16 data = (u16)hw->mac.ledctl_mode1;
+ u32 i, led;
+
+ /* If no link, then turn LED off by clearing the invert bit
+ * for each LED that's mode is "link_up" in ledctl_mode1.
+ */
+ if (!(er32(STATUS) & E1000_STATUS_LU)) {
+ for (i = 0; i < 3; i++) {
+ led = (data >> (i * 5)) & E1000_PHY_LED0_MASK;
+ if ((led & E1000_PHY_LED0_MODE_MASK) !=
+ E1000_LEDCTL_MODE_LINK_UP)
+ continue;
+ if (led & E1000_PHY_LED0_IVRT)
+ data &= ~(E1000_PHY_LED0_IVRT << (i * 5));
+ else
+ data |= (E1000_PHY_LED0_IVRT << (i * 5));
+ }
+ }
+
+ return e1e_wphy(hw, HV_LED_CONFIG, data);
+}
+
+/**
+ * e1000_get_cfg_done_ich8lan - Read config done bit after Full or PHY reset
+ * @hw: pointer to the HW structure
+ *
+ * Read appropriate register for the config done bit for completion status
+ * and configure the PHY through s/w for EEPROM-less parts.
+ *
+ * NOTE: some silicon which is EEPROM-less will fail trying to read the
+ * config done bit, so only an error is logged and continues. If we were
+ * to return with error, EEPROM-less silicon would not be able to be reset
+ * or change link.
+ **/
+static s32 e1000_get_cfg_done_ich8lan(struct e1000_hw *hw)
+{
+ s32 ret_val = 0;
+ u32 bank = 0;
+ u32 status;
+
+ e1000e_get_cfg_done_generic(hw);
+
+ /* Wait for indication from h/w that it has completed basic config */
+ if (hw->mac.type >= e1000_ich10lan) {
+ e1000_lan_init_done_ich8lan(hw);
+ } else {
+ ret_val = e1000e_get_auto_rd_done(hw);
+ if (ret_val) {
+ /* When auto config read does not complete, do not
+ * return with an error. This can happen in situations
+ * where there is no eeprom and prevents getting link.
+ */
+ e_dbg("Auto Read Done did not complete\n");
+ ret_val = 0;
+ }
+ }
+
+ /* Clear PHY Reset Asserted bit */
+ status = er32(STATUS);
+ if (status & E1000_STATUS_PHYRA)
+ ew32(STATUS, status & ~E1000_STATUS_PHYRA);
+ else
+ e_dbg("PHY Reset Asserted not set - needs delay\n");
+
+ /* If EEPROM is not marked present, init the IGP 3 PHY manually */
+ if (hw->mac.type <= e1000_ich9lan) {
+ if (!(er32(EECD) & E1000_EECD_PRES) &&
+ (hw->phy.type == e1000_phy_igp_3)) {
+ e1000e_phy_init_script_igp3(hw);
+ }
+ } else {
+ if (e1000_valid_nvm_bank_detect_ich8lan(hw, &bank)) {
+ /* Maybe we should do a basic PHY config */
+ e_dbg("EEPROM not present\n");
+ ret_val = -E1000_ERR_CONFIG;
+ }
+ }
+
+ return ret_val;
+}
+
+/**
+ * e1000_power_down_phy_copper_ich8lan - Remove link during PHY power down
+ * @hw: pointer to the HW structure
+ *
+ * In the case of a PHY power down to save power, or to turn off link during a
+ * driver unload, or wake on lan is not enabled, remove the link.
+ **/
+static void e1000_power_down_phy_copper_ich8lan(struct e1000_hw *hw)
+{
+ /* If the management interface is not enabled, then power down */
+ if (!(hw->mac.ops.check_mng_mode(hw) ||
+ hw->phy.ops.check_reset_block(hw)))
+ e1000_power_down_phy_copper(hw);
+}
+
+/**
+ * e1000_clear_hw_cntrs_ich8lan - Clear statistical counters
+ * @hw: pointer to the HW structure
+ *
+ * Clears hardware counters specific to the silicon family and calls
+ * clear_hw_cntrs_generic to clear all general purpose counters.
+ **/
+static void e1000_clear_hw_cntrs_ich8lan(struct e1000_hw *hw)
+{
+ u16 phy_data;
+ s32 ret_val;
+
+ e1000e_clear_hw_cntrs_base(hw);
+
+ er32(ALGNERRC);
+ er32(RXERRC);
+ er32(TNCRS);
+ er32(CEXTERR);
+ er32(TSCTC);
+ er32(TSCTFC);
+
+ er32(MGTPRC);
+ er32(MGTPDC);
+ er32(MGTPTC);
+
+ er32(IAC);
+ er32(ICRXOC);
+
+ /* Clear PHY statistics registers */
+ if ((hw->phy.type == e1000_phy_82578) ||
+ (hw->phy.type == e1000_phy_82579) ||
+ (hw->phy.type == e1000_phy_i217) ||
+ (hw->phy.type == e1000_phy_82577)) {
+ ret_val = hw->phy.ops.acquire(hw);
+ if (ret_val)
+ return;
+ ret_val = hw->phy.ops.set_page(hw,
+ HV_STATS_PAGE << IGP_PAGE_SHIFT);
+ if (ret_val)
+ goto release;
+ hw->phy.ops.read_reg_page(hw, HV_SCC_UPPER, &phy_data);
+ hw->phy.ops.read_reg_page(hw, HV_SCC_LOWER, &phy_data);
+ hw->phy.ops.read_reg_page(hw, HV_ECOL_UPPER, &phy_data);
+ hw->phy.ops.read_reg_page(hw, HV_ECOL_LOWER, &phy_data);
+ hw->phy.ops.read_reg_page(hw, HV_MCC_UPPER, &phy_data);
+ hw->phy.ops.read_reg_page(hw, HV_MCC_LOWER, &phy_data);
+ hw->phy.ops.read_reg_page(hw, HV_LATECOL_UPPER, &phy_data);
+ hw->phy.ops.read_reg_page(hw, HV_LATECOL_LOWER, &phy_data);
+ hw->phy.ops.read_reg_page(hw, HV_COLC_UPPER, &phy_data);
+ hw->phy.ops.read_reg_page(hw, HV_COLC_LOWER, &phy_data);
+ hw->phy.ops.read_reg_page(hw, HV_DC_UPPER, &phy_data);
+ hw->phy.ops.read_reg_page(hw, HV_DC_LOWER, &phy_data);
+ hw->phy.ops.read_reg_page(hw, HV_TNCRS_UPPER, &phy_data);
+ hw->phy.ops.read_reg_page(hw, HV_TNCRS_LOWER, &phy_data);
+release:
+ hw->phy.ops.release(hw);
+ }
+}
+
+static const struct e1000_mac_operations ich8_mac_ops = {
+ /* check_mng_mode dependent on mac type */
+ .check_for_link = e1000_check_for_copper_link_ich8lan,
+ /* cleanup_led dependent on mac type */
+ .clear_hw_cntrs = e1000_clear_hw_cntrs_ich8lan,
+ .get_bus_info = e1000_get_bus_info_ich8lan,
+ .set_lan_id = e1000_set_lan_id_single_port,
+ .get_link_up_info = e1000_get_link_up_info_ich8lan,
+ /* led_on dependent on mac type */
+ /* led_off dependent on mac type */
+ .update_mc_addr_list = e1000e_update_mc_addr_list_generic,
+ .reset_hw = e1000_reset_hw_ich8lan,
+ .init_hw = e1000_init_hw_ich8lan,
+ .setup_link = e1000_setup_link_ich8lan,
+ .setup_physical_interface = e1000_setup_copper_link_ich8lan,
+ /* id_led_init dependent on mac type */
+ .config_collision_dist = e1000e_config_collision_dist_generic,
+ .rar_set = e1000e_rar_set_generic,
+ .rar_get_count = e1000e_rar_get_count_generic,
+ .validate_mdi_setting = e1000e_validate_mdi_setting_generic,
+};
+
+static const struct e1000_phy_operations ich8_phy_ops = {
+ .acquire = e1000_acquire_swflag_ich8lan,
+ .check_reset_block = e1000_check_reset_block_ich8lan,
+ .commit = NULL,
+ .get_cfg_done = e1000_get_cfg_done_ich8lan,
+ .get_cable_length = e1000e_get_cable_length_igp_2,
+ .read_reg = e1000e_read_phy_reg_igp,
+ .release = e1000_release_swflag_ich8lan,
+ .reset = e1000_phy_hw_reset_ich8lan,
+ .set_d0_lplu_state = e1000_set_d0_lplu_state_ich8lan,
+ .set_d3_lplu_state = e1000_set_d3_lplu_state_ich8lan,
+ .write_reg = e1000e_write_phy_reg_igp,
+};
+
+static const struct e1000_nvm_operations ich8_nvm_ops = {
+ .acquire = e1000_acquire_nvm_ich8lan,
+ .read = e1000_read_nvm_ich8lan,
+ .release = e1000_release_nvm_ich8lan,
+ .reload = e1000e_reload_nvm_generic,
+ .update = e1000_update_nvm_checksum_ich8lan,
+ .valid_led_default = e1000_valid_led_default_ich8lan,
+ .validate = e1000_validate_nvm_checksum_ich8lan,
+ .write = e1000_write_nvm_ich8lan,
+};
+
+static const struct e1000_nvm_operations spt_nvm_ops = {
+ .acquire = e1000_acquire_nvm_ich8lan,
+ .release = e1000_release_nvm_ich8lan,
+ .read = e1000_read_nvm_spt,
+ .update = e1000_update_nvm_checksum_spt,
+ .reload = e1000e_reload_nvm_generic,
+ .valid_led_default = e1000_valid_led_default_ich8lan,
+ .validate = e1000_validate_nvm_checksum_ich8lan,
+ .write = e1000_write_nvm_ich8lan,
+};
+
+const struct e1000_info e1000_ich8_info = {
+ .mac = e1000_ich8lan,
+ .flags = FLAG_HAS_WOL
+ | FLAG_IS_ICH
+#ifndef HAVE_NDO_SET_FEATURES
+ | FLAG_RX_CSUM_ENABLED
+#endif
+ | FLAG_HAS_CTRLEXT_ON_LOAD
+ | FLAG_HAS_AMT
+ | FLAG_HAS_FLASH
+ | FLAG_APME_IN_WUC,
+ .pba = 8,
+ .max_hw_frame_size = VLAN_ETH_FRAME_LEN + ETH_FCS_LEN,
+ .get_variants = e1000_get_variants_ich8lan,
+ .mac_ops = &ich8_mac_ops,
+ .phy_ops = &ich8_phy_ops,
+ .nvm_ops = &ich8_nvm_ops,
+};
+
+const struct e1000_info e1000_ich9_info = {
+ .mac = e1000_ich9lan,
+ .flags = FLAG_HAS_JUMBO_FRAMES
+ | FLAG_IS_ICH
+ | FLAG_HAS_WOL
+#ifndef HAVE_NDO_SET_FEATURES
+ | FLAG_RX_CSUM_ENABLED
+#endif
+ | FLAG_HAS_CTRLEXT_ON_LOAD
+ | FLAG_HAS_AMT
+ | FLAG_HAS_FLASH
+ | FLAG_APME_IN_WUC,
+ .pba = 18,
+ .max_hw_frame_size = DEFAULT_JUMBO,
+ .get_variants = e1000_get_variants_ich8lan,
+ .mac_ops = &ich8_mac_ops,
+ .phy_ops = &ich8_phy_ops,
+ .nvm_ops = &ich8_nvm_ops,
+};
+
+const struct e1000_info e1000_ich10_info = {
+ .mac = e1000_ich10lan,
+ .flags = FLAG_HAS_JUMBO_FRAMES
+ | FLAG_IS_ICH
+ | FLAG_HAS_WOL
+#ifndef HAVE_NDO_SET_FEATURES
+ | FLAG_RX_CSUM_ENABLED
+#endif
+ | FLAG_HAS_CTRLEXT_ON_LOAD
+ | FLAG_HAS_AMT
+ | FLAG_HAS_FLASH
+ | FLAG_APME_IN_WUC,
+ .pba = 18,
+ .max_hw_frame_size = DEFAULT_JUMBO,
+ .get_variants = e1000_get_variants_ich8lan,
+ .mac_ops = &ich8_mac_ops,
+ .phy_ops = &ich8_phy_ops,
+ .nvm_ops = &ich8_nvm_ops,
+};
+
+const struct e1000_info e1000_pch_info = {
+ .mac = e1000_pchlan,
+ .flags = FLAG_IS_ICH
+ | FLAG_HAS_WOL
+#ifndef HAVE_NDO_SET_FEATURES
+ | FLAG_RX_CSUM_ENABLED
+#endif
+ | FLAG_HAS_CTRLEXT_ON_LOAD
+ | FLAG_HAS_AMT
+ | FLAG_HAS_FLASH
+ | FLAG_HAS_JUMBO_FRAMES
+ | FLAG_DISABLE_FC_PAUSE_TIME /* errata */
+ | FLAG_APME_IN_WUC,
+ .flags2 = FLAG2_HAS_PHY_STATS,
+ .pba = 26,
+ .max_hw_frame_size = 4096,
+ .get_variants = e1000_get_variants_ich8lan,
+ .mac_ops = &ich8_mac_ops,
+ .phy_ops = &ich8_phy_ops,
+ .nvm_ops = &ich8_nvm_ops,
+};
+
+const struct e1000_info e1000_pch2_info = {
+ .mac = e1000_pch2lan,
+ .flags = FLAG_IS_ICH
+ | FLAG_HAS_WOL
+ | FLAG_HAS_HW_TIMESTAMP
+#ifndef HAVE_NDO_SET_FEATURES
+ | FLAG_RX_CSUM_ENABLED
+#endif
+ | FLAG_HAS_CTRLEXT_ON_LOAD
+ | FLAG_HAS_AMT
+ | FLAG_HAS_FLASH
+ | FLAG_HAS_JUMBO_FRAMES
+ | FLAG_APME_IN_WUC,
+ .flags2 = FLAG2_HAS_PHY_STATS
+ | FLAG2_HAS_EEE,
+ .pba = 26,
+ .max_hw_frame_size = 9022,
+ .get_variants = e1000_get_variants_ich8lan,
+ .mac_ops = &ich8_mac_ops,
+ .phy_ops = &ich8_phy_ops,
+ .nvm_ops = &ich8_nvm_ops,
+};
+
+const struct e1000_info e1000_pch_lpt_info = {
+ .mac = e1000_pch_lpt,
+ .flags = FLAG_IS_ICH
+ | FLAG_HAS_WOL
+ | FLAG_HAS_HW_TIMESTAMP
+#ifndef HAVE_NDO_SET_FEATURES
+ | FLAG_RX_CSUM_ENABLED
+#endif
+ | FLAG_HAS_CTRLEXT_ON_LOAD
+ | FLAG_HAS_AMT
+ | FLAG_HAS_FLASH
+ | FLAG_HAS_JUMBO_FRAMES
+ | FLAG_APME_IN_WUC,
+ .flags2 = FLAG2_HAS_PHY_STATS
+ | FLAG2_HAS_EEE,
+ .pba = 26,
+ .max_hw_frame_size = 9022,
+ .get_variants = e1000_get_variants_ich8lan,
+ .mac_ops = &ich8_mac_ops,
+ .phy_ops = &ich8_phy_ops,
+ .nvm_ops = &ich8_nvm_ops,
+};
+
+const struct e1000_info e1000_pch_spt_info = {
+ .mac = e1000_pch_spt,
+ .flags = FLAG_IS_ICH
+ | FLAG_HAS_WOL
+ | FLAG_HAS_HW_TIMESTAMP
+#ifndef HAVE_NDO_SET_FEATURES
+ | FLAG_RX_CSUM_ENABLED
+#endif
+ | FLAG_HAS_CTRLEXT_ON_LOAD
+ | FLAG_HAS_AMT
+ | FLAG_HAS_FLASH
+ | FLAG_HAS_JUMBO_FRAMES
+ | FLAG_APME_IN_WUC,
+ .flags2 = FLAG2_HAS_PHY_STATS
+ | FLAG2_HAS_EEE,
+ .pba = 26,
+ .max_hw_frame_size = 9022,
+ .get_variants = e1000_get_variants_ich8lan,
+ .mac_ops = &ich8_mac_ops,
+ .phy_ops = &ich8_phy_ops,
+ .nvm_ops = &spt_nvm_ops,
+};
+
+const struct e1000_info e1000_pch_cnp_info = {
+ .mac = e1000_pch_cnp,
+ .flags = FLAG_IS_ICH
+ | FLAG_HAS_WOL
+ | FLAG_HAS_HW_TIMESTAMP
+#ifndef HAVE_NDO_SET_FEATURES
+ | FLAG_RX_CSUM_ENABLED
+#endif
+ | FLAG_HAS_CTRLEXT_ON_LOAD
+ | FLAG_HAS_AMT
+ | FLAG_HAS_FLASH
+ | FLAG_HAS_JUMBO_FRAMES
+ | FLAG_APME_IN_WUC,
+ .flags2 = FLAG2_HAS_PHY_STATS
+ | FLAG2_HAS_EEE,
+ .pba = 26,
+ .max_hw_frame_size = 9022,
+ .get_variants = e1000_get_variants_ich8lan,
+ .mac_ops = &ich8_mac_ops,
+ .phy_ops = &ich8_phy_ops,
+ .nvm_ops = &spt_nvm_ops,
+};
diff --git a/src/ich8lan.h b/src/ich8lan.h
new file mode 100644
index 0000000..f7a3ba3
--- /dev/null
+++ b/src/ich8lan.h
@@ -0,0 +1,308 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/* Copyright(c) 1999 - 2020 Intel Corporation. */
+
+#ifndef _E1000E_ICH8LAN_H_
+#define _E1000E_ICH8LAN_H_
+
+#define ICH_FLASH_GFPREG 0x0000
+#define ICH_FLASH_HSFSTS 0x0004
+#define ICH_FLASH_HSFCTL 0x0006
+#define ICH_FLASH_FADDR 0x0008
+#define ICH_FLASH_FDATA0 0x0010
+
+/* Requires up to 10 seconds when MNG might be accessing part. */
+#define ICH_FLASH_READ_COMMAND_TIMEOUT 10000000
+#define ICH_FLASH_WRITE_COMMAND_TIMEOUT 10000000
+#define ICH_FLASH_ERASE_COMMAND_TIMEOUT 10000000
+#define ICH_FLASH_LINEAR_ADDR_MASK 0x00FFFFFF
+#define ICH_FLASH_CYCLE_REPEAT_COUNT 10
+
+#define ICH_CYCLE_READ 0
+#define ICH_CYCLE_WRITE 2
+#define ICH_CYCLE_ERASE 3
+
+#define FLASH_GFPREG_BASE_MASK 0x1FFF
+#define FLASH_SECTOR_ADDR_SHIFT 12
+
+#define ICH_FLASH_SEG_SIZE_256 256
+#define ICH_FLASH_SEG_SIZE_4K 4096
+#define ICH_FLASH_SEG_SIZE_8K 8192
+#define ICH_FLASH_SEG_SIZE_64K 65536
+
+#define E1000_ICH_FWSM_RSPCIPHY 0x00000040 /* Reset PHY on PCI Reset */
+/* FW established a valid mode */
+#define E1000_ICH_FWSM_FW_VALID 0x00008000
+#define E1000_ICH_FWSM_PCIM2PCI 0x01000000 /* ME PCIm-to-PCI active */
+#define E1000_ICH_FWSM_PCIM2PCI_COUNT 2000
+
+#define E1000_ICH_MNG_IAMT_MODE 0x2
+
+#define E1000_FWSM_WLOCK_MAC_MASK 0x0380
+#define E1000_FWSM_WLOCK_MAC_SHIFT 7
+#define E1000_FWSM_ULP_CFG_DONE 0x00000400 /* Low power cfg done */
+
+/* Shared Receive Address Registers */
+#define E1000_SHRAL_PCH_LPT(_i) (0x05408 + ((_i) * 8))
+#define E1000_SHRAH_PCH_LPT(_i) (0x0540C + ((_i) * 8))
+
+#define E1000_H2ME 0x05B50 /* Host to ME */
+#define E1000_H2ME_ULP 0x00000800 /* ULP Indication Bit */
+#define E1000_H2ME_ENFORCE_SETTINGS 0x00001000 /* Enforce Settings */
+
+#define ID_LED_DEFAULT_ICH8LAN ((ID_LED_DEF1_DEF2 << 12) | \
+ (ID_LED_OFF1_OFF2 << 8) | \
+ (ID_LED_OFF1_ON2 << 4) | \
+ (ID_LED_DEF1_DEF2))
+
+#define E1000_ICH_NVM_SIG_WORD 0x13
+#define E1000_ICH_NVM_SIG_MASK 0xC000
+#define E1000_ICH_NVM_VALID_SIG_MASK 0xC0
+#define E1000_ICH_NVM_SIG_VALUE 0x80
+
+#define E1000_ICH8_LAN_INIT_TIMEOUT 1500
+
+/* FEXT register bit definition */
+#define E1000_FEXT_PHY_CABLE_DISCONNECTED 0x00000004
+
+#define E1000_FEXTNVM_SW_CONFIG 1
+#define E1000_FEXTNVM_SW_CONFIG_ICH8M (1 << 27) /* different on ICH8M */
+
+#define E1000_FEXTNVM3_PHY_CFG_COUNTER_MASK 0x0C000000
+#define E1000_FEXTNVM3_PHY_CFG_COUNTER_50MSEC 0x08000000
+
+#define E1000_FEXTNVM4_BEACON_DURATION_MASK 0x7
+#define E1000_FEXTNVM4_BEACON_DURATION_8USEC 0x7
+#define E1000_FEXTNVM4_BEACON_DURATION_16USEC 0x3
+
+#define E1000_FEXTNVM6_REQ_PLL_CLK 0x00000100
+#define E1000_FEXTNVM6_ENABLE_K1_ENTRY_CONDITION 0x00000200
+#define E1000_FEXTNVM6_K1_OFF_ENABLE 0x80000000
+/* bit for disabling packet buffer read */
+#define E1000_FEXTNVM7_DISABLE_PB_READ 0x00040000
+#define E1000_FEXTNVM7_SIDE_CLK_UNGATE 0x00000004
+#define E1000_FEXTNVM7_DISABLE_SMB_PERST 0x00000020
+#define E1000_FEXTNVM8_UNBIND_DPG_FROM_MPHY 0x00000400
+#define E1000_FEXTNVM9_IOSFSB_CLKGATE_DIS 0x00000800
+#define E1000_FEXTNVM9_IOSFSB_CLKREQ_DIS 0x00001000
+#define E1000_FEXTNVM11_DISABLE_PB_READ 0x00000200
+#define E1000_FEXTNVM11_DISABLE_MULR_FIX 0x00002000
+#define E1000_FEXTNVM12_DONT_WAK_DPG_CLKREQ 0x00001000
+/* bit24: RXDCTL thresholds granularity: 0 - cache lines, 1 - descriptors */
+#define E1000_RXDCTL_THRESH_UNIT_DESC 0x01000000
+
+#define NVM_SIZE_MULTIPLIER 4096 /*multiplier for NVMS field */
+#define E1000_FLASH_BASE_ADDR 0xE000 /*offset of NVM access regs */
+#define E1000_CTRL_EXT_NVMVS 0x3 /*NVM valid sector */
+#define E1000_TARC0_CB_MULTIQ_3_REQ 0x30000000
+#define E1000_TARC0_CB_MULTIQ_2_REQ 0x20000000
+#define PCIE_ICH8_SNOOP_ALL PCIE_NO_SNOOP_ALL
+
+#define E1000_ICH_RAR_ENTRIES 7
+#define E1000_PCH2_RAR_ENTRIES 5 /* RAR[0], SHRA[0-3] */
+#define E1000_PCH_LPT_RAR_ENTRIES 12 /* RAR[0], SHRA[0-10] */
+
+#define PHY_PAGE_SHIFT 5
+#define PHY_REG(page, reg) (((page) << PHY_PAGE_SHIFT) | \
+ ((reg) & MAX_PHY_REG_ADDRESS))
+#define IGP3_KMRN_DIAG PHY_REG(770, 19) /* KMRN Diagnostic */
+#define IGP3_VR_CTRL PHY_REG(776, 18) /* Voltage Regulator Control */
+
+#define IGP3_KMRN_DIAG_PCS_LOCK_LOSS 0x0002
+#define IGP3_VR_CTRL_DEV_POWERDOWN_MODE_MASK 0x0300
+#define IGP3_VR_CTRL_MODE_SHUTDOWN 0x0200
+
+/* PHY Wakeup Registers and defines */
+#define BM_PORT_GEN_CFG PHY_REG(BM_PORT_CTRL_PAGE, 17)
+#define BM_RCTL PHY_REG(BM_WUC_PAGE, 0)
+#define BM_WUC PHY_REG(BM_WUC_PAGE, 1)
+#define BM_WUFC PHY_REG(BM_WUC_PAGE, 2)
+#define BM_WUS PHY_REG(BM_WUC_PAGE, 3)
+#define BM_RAR_L(_i) (BM_PHY_REG(BM_WUC_PAGE, 16 + ((_i) << 2)))
+#define BM_RAR_M(_i) (BM_PHY_REG(BM_WUC_PAGE, 17 + ((_i) << 2)))
+#define BM_RAR_H(_i) (BM_PHY_REG(BM_WUC_PAGE, 18 + ((_i) << 2)))
+#define BM_RAR_CTRL(_i) (BM_PHY_REG(BM_WUC_PAGE, 19 + ((_i) << 2)))
+#define BM_MTA(_i) (BM_PHY_REG(BM_WUC_PAGE, 128 + ((_i) << 1)))
+
+#define BM_RCTL_UPE 0x0001 /* Unicast Promiscuous Mode */
+#define BM_RCTL_MPE 0x0002 /* Multicast Promiscuous Mode */
+#define BM_RCTL_MO_SHIFT 3 /* Multicast Offset Shift */
+#define BM_RCTL_MO_MASK (3 << 3) /* Multicast Offset Mask */
+#define BM_RCTL_BAM 0x0020 /* Broadcast Accept Mode */
+#define BM_RCTL_PMCF 0x0040 /* Pass MAC Control Frames */
+#define BM_RCTL_RFCE 0x0080 /* Rx Flow Control Enable */
+
+#define HV_LED_CONFIG PHY_REG(768, 30) /* LED Configuration */
+#define HV_MUX_DATA_CTRL PHY_REG(776, 16)
+#define HV_MUX_DATA_CTRL_GEN_TO_MAC 0x0400
+#define HV_MUX_DATA_CTRL_FORCE_SPEED 0x0004
+#define HV_STATS_PAGE 778
+/* Half-duplex collision counts */
+#define HV_SCC_UPPER PHY_REG(HV_STATS_PAGE, 16) /* Single Collision */
+#define HV_SCC_LOWER PHY_REG(HV_STATS_PAGE, 17)
+#define HV_ECOL_UPPER PHY_REG(HV_STATS_PAGE, 18) /* Excessive Coll. */
+#define HV_ECOL_LOWER PHY_REG(HV_STATS_PAGE, 19)
+#define HV_MCC_UPPER PHY_REG(HV_STATS_PAGE, 20) /* Multiple Collision */
+#define HV_MCC_LOWER PHY_REG(HV_STATS_PAGE, 21)
+#define HV_LATECOL_UPPER PHY_REG(HV_STATS_PAGE, 23) /* Late Collision */
+#define HV_LATECOL_LOWER PHY_REG(HV_STATS_PAGE, 24)
+#define HV_COLC_UPPER PHY_REG(HV_STATS_PAGE, 25) /* Collision */
+#define HV_COLC_LOWER PHY_REG(HV_STATS_PAGE, 26)
+#define HV_DC_UPPER PHY_REG(HV_STATS_PAGE, 27) /* Defer Count */
+#define HV_DC_LOWER PHY_REG(HV_STATS_PAGE, 28)
+#define HV_TNCRS_UPPER PHY_REG(HV_STATS_PAGE, 29) /* Tx with no CRS */
+#define HV_TNCRS_LOWER PHY_REG(HV_STATS_PAGE, 30)
+
+#define E1000_FCRTV_PCH 0x05F40 /* PCH Flow Control Refresh Timer Value */
+
+#define E1000_NVM_K1_CONFIG 0x1B /* NVM K1 Config Word */
+#define E1000_NVM_K1_ENABLE 0x1 /* NVM Enable K1 bit */
+#define K1_ENTRY_LATENCY 0
+#define K1_MIN_TIME 1
+
+/* SMBus Control Phy Register */
+#define CV_SMB_CTRL PHY_REG(769, 23)
+#define CV_SMB_CTRL_FORCE_SMBUS 0x0001
+
+/* I218 Ultra Low Power Configuration 1 Register */
+#define I218_ULP_CONFIG1 PHY_REG(779, 16)
+#define I218_ULP_CONFIG1_START 0x0001 /* Start auto ULP config */
+#define I218_ULP_CONFIG1_IND 0x0004 /* Pwr up from ULP indication */
+#define I218_ULP_CONFIG1_STICKY_ULP 0x0010 /* Set sticky ULP mode */
+#define I218_ULP_CONFIG1_INBAND_EXIT 0x0020 /* Inband on ULP exit */
+#define I218_ULP_CONFIG1_WOL_HOST 0x0040 /* WoL Host on ULP exit */
+#define I218_ULP_CONFIG1_RESET_TO_SMBUS 0x0100 /* Reset to SMBus mode */
+/* enable ULP even if when phy powered down via lanphypc */
+#define I218_ULP_CONFIG1_EN_ULP_LANPHYPC 0x0400
+/* disable clear of sticky ULP on PERST */
+#define I218_ULP_CONFIG1_DIS_CLR_STICKY_ON_PERST 0x0800
+#define I218_ULP_CONFIG1_DISABLE_SMB_PERST 0x1000 /* Disable on PERST# */
+
+/* SMBus Address Phy Register */
+#define HV_SMB_ADDR PHY_REG(768, 26)
+#define HV_SMB_ADDR_MASK 0x007F
+#define HV_SMB_ADDR_PEC_EN 0x0200
+#define HV_SMB_ADDR_VALID 0x0080
+#define HV_SMB_ADDR_FREQ_MASK 0x1100
+#define HV_SMB_ADDR_FREQ_LOW_SHIFT 8
+#define HV_SMB_ADDR_FREQ_HIGH_SHIFT 12
+
+/* Strapping Option Register - RO */
+#define E1000_STRAP 0x0000C
+#define E1000_STRAP_SMBUS_ADDRESS_MASK 0x00FE0000
+#define E1000_STRAP_SMBUS_ADDRESS_SHIFT 17
+#define E1000_STRAP_SMT_FREQ_MASK 0x00003000
+#define E1000_STRAP_SMT_FREQ_SHIFT 12
+
+/* OEM Bits Phy Register */
+#define HV_OEM_BITS PHY_REG(768, 25)
+#define HV_OEM_BITS_LPLU 0x0004 /* Low Power Link Up */
+#define HV_OEM_BITS_GBE_DIS 0x0040 /* Gigabit Disable */
+#define HV_OEM_BITS_RESTART_AN 0x0400 /* Restart Auto-negotiation */
+
+/* KMRN Mode Control */
+#define HV_KMRN_MODE_CTRL PHY_REG(769, 16)
+#define HV_KMRN_MDIO_SLOW 0x0400
+
+/* KMRN FIFO Control and Status */
+#define HV_KMRN_FIFO_CTRLSTA PHY_REG(770, 16)
+#define HV_KMRN_FIFO_CTRLSTA_PREAMBLE_MASK 0x7000
+#define HV_KMRN_FIFO_CTRLSTA_PREAMBLE_SHIFT 12
+
+/* PHY Power Management Control */
+#define HV_PM_CTRL PHY_REG(770, 17)
+#define HV_PM_CTRL_K1_CLK_REQ 0x200
+#define HV_PM_CTRL_K1_ENABLE 0x4000
+
+#define I217_PLL_CLOCK_GATE_REG PHY_REG(772, 28)
+#define I217_PLL_CLOCK_GATE_MASK 0x07FF
+
+#define SW_FLAG_TIMEOUT 1000 /* SW Semaphore flag timeout in ms */
+
+/* Inband Control */
+#define I217_INBAND_CTRL PHY_REG(770, 18)
+#define I217_INBAND_CTRL_LINK_STAT_TX_TIMEOUT_MASK 0x3F00
+#define I217_INBAND_CTRL_LINK_STAT_TX_TIMEOUT_SHIFT 8
+
+/* Low Power Idle GPIO Control */
+#define I217_LPI_GPIO_CTRL PHY_REG(772, 18)
+#define I217_LPI_GPIO_CTRL_AUTO_EN_LPI 0x0800
+
+/* PHY Low Power Idle Control */
+#define I82579_LPI_CTRL PHY_REG(772, 20)
+#define I82579_LPI_CTRL_100_ENABLE 0x2000
+#define I82579_LPI_CTRL_1000_ENABLE 0x4000
+#define I82579_LPI_CTRL_ENABLE_MASK 0x6000
+
+/* 82579 DFT Control */
+#define I82579_DFT_CTRL PHY_REG(769, 20)
+#define I82579_DFT_CTRL_GATE_PHY_RESET 0x0040 /* Gate PHY Reset on MAC Reset */
+
+/* Extended Management Interface (EMI) Registers */
+#define I82579_EMI_ADDR 0x10
+#define I82579_EMI_DATA 0x11
+#define I82579_LPI_UPDATE_TIMER 0x4805 /* in 40ns units + 40 ns base value */
+#define I82579_MSE_THRESHOLD 0x084F /* 82579 Mean Square Error Threshold */
+#define I82577_MSE_THRESHOLD 0x0887 /* 82577 Mean Square Error Threshold */
+#define I82579_MSE_LINK_DOWN 0x2411 /* MSE count before dropping link */
+#define I82579_RX_CONFIG 0x3412 /* Receive configuration */
+#define I82579_LPI_PLL_SHUT 0x4412 /* LPI PLL Shut Enable */
+#define I82579_EEE_PCS_STATUS 0x182E /* IEEE MMD Register 3.1 >> 8 */
+#define I82579_EEE_CAPABILITY 0x0410 /* IEEE MMD Register 3.20 */
+#define I82579_EEE_ADVERTISEMENT 0x040E /* IEEE MMD Register 7.60 */
+#define I82579_EEE_LP_ABILITY 0x040F /* IEEE MMD Register 7.61 */
+#define I82579_EEE_100_SUPPORTED (1 << 1) /* 100BaseTx EEE */
+#define I82579_EEE_1000_SUPPORTED (1 << 2) /* 1000BaseTx EEE */
+#define I82579_LPI_100_PLL_SHUT (1 << 2) /* 100M LPI PLL Shut Enabled */
+#define I217_EEE_PCS_STATUS 0x9401 /* IEEE MMD Register 3.1 */
+#define I217_EEE_CAPABILITY 0x8000 /* IEEE MMD Register 3.20 */
+#define I217_EEE_ADVERTISEMENT 0x8001 /* IEEE MMD Register 7.60 */
+#define I217_EEE_LP_ABILITY 0x8002 /* IEEE MMD Register 7.61 */
+#define I217_RX_CONFIG 0xB20C /* Receive configuration */
+
+#define E1000_EEE_RX_LPI_RCVD 0x0400 /* Tx LP idle received */
+#define E1000_EEE_TX_LPI_RCVD 0x0800 /* Rx LP idle received */
+
+/* Intel Rapid Start Technology Support */
+#define I217_PROXY_CTRL BM_PHY_REG(BM_WUC_PAGE, 70)
+#define I217_PROXY_CTRL_AUTO_DISABLE 0x0080
+#define I217_SxCTRL PHY_REG(BM_PORT_CTRL_PAGE, 28)
+#define I217_SxCTRL_ENABLE_LPI_RESET 0x1000
+#define I217_CGFREG PHY_REG(772, 29)
+#define I217_CGFREG_ENABLE_MTA_RESET 0x0002
+#define I217_MEMPWR PHY_REG(772, 26)
+#define I217_MEMPWR_DISABLE_SMB_RELEASE 0x0010
+
+/* Receive Address Initial CRC Calculation */
+#define E1000_PCH_RAICC(_n) (0x05F50 + ((_n) * 4))
+
+/* Latency Tolerance Reporting */
+#define E1000_LTRV 0x000F8
+#define E1000_LTRV_SCALE_MAX 5
+#define E1000_LTRV_SCALE_FACTOR 5
+#define E1000_LTRV_REQ_SHIFT 15
+#define E1000_LTRV_NOSNOOP_SHIFT 16
+#define E1000_LTRV_SEND (1 << 30)
+
+/* Proprietary Latency Tolerance Reporting PCI Capability */
+#define E1000_PCI_LTR_CAP_LPT 0xA8
+
+#define E1000_PCI_VENDOR_ID_REGISTER 0x00
+
+#define E1000_PCI_REVISION_ID_REG 0x08
+void e1000e_set_kmrn_lock_loss_workaround_ich8lan(struct e1000_hw *hw,
+ bool state);
+void e1000e_igp3_phy_powerdown_workaround_ich8lan(struct e1000_hw *hw);
+void e1000e_gig_downshift_workaround_ich8lan(struct e1000_hw *hw);
+void e1000_suspend_workarounds_ich8lan(struct e1000_hw *hw);
+void e1000_resume_workarounds_pchlan(struct e1000_hw *hw);
+s32 e1000_configure_k1_ich8lan(struct e1000_hw *hw, bool k1_enable);
+void e1000_copy_rx_addrs_to_phy_ich8lan(struct e1000_hw *hw);
+s32 e1000_lv_jumbo_workaround_ich8lan(struct e1000_hw *hw, bool enable);
+s32 e1000_read_emi_reg_locked(struct e1000_hw *hw, u16 addr, u16 *data);
+s32 e1000_write_emi_reg_locked(struct e1000_hw *hw, u16 addr, u16 data);
+s32 e1000_set_eee_pchlan(struct e1000_hw *hw);
+s32 e1000_enable_ulp_lpt_lp(struct e1000_hw *hw, bool to_sx);
+#endif /* _E1000E_ICH8LAN_H_ */
+#ifdef DYNAMIC_LTR_SUPPORT
+void e1000_demote_ltr(struct e1000_hw *hw, bool demote, bool link);
+#endif /* DYNAMIC_LTR_SUPPORT */
diff --git a/src/kcompat.c b/src/kcompat.c
new file mode 100644
index 0000000..26247e3
--- /dev/null
+++ b/src/kcompat.c
@@ -0,0 +1,2585 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright(c) 1999 - 2020 Intel Corporation. */
+
+#include "e1000.h"
+#include "kcompat.h"
+
+/*****************************************************************************/
+#if ( LINUX_VERSION_CODE < KERNEL_VERSION(2,4,8) ) || defined __VMKLNX__
+/* From lib/vsprintf.c */
+#include <asm/div64.h>
+
+static int skip_atoi(const char **s)
+{
+ int i = 0;
+
+ while (isdigit(**s))
+ i = i * 10 + *((*s)++) - '0';
+ return i;
+}
+
+#define _kc_ZEROPAD 1 /* pad with zero */
+#define _kc_SIGN 2 /* unsigned/signed long */
+#define _kc_PLUS 4 /* show plus */
+#define _kc_SPACE 8 /* space if plus */
+#define _kc_LEFT 16 /* left justified */
+#define _kc_SPECIAL 32 /* 0x */
+#define _kc_LARGE 64 /* use 'ABCDEF' instead of 'abcdef' */
+
+static char *number(char *buf, char *end, long long num, int base, int size,
+ int precision, int type)
+{
+ char c, sign, tmp[66];
+ const char *digits;
+ const char small_digits[] = "0123456789abcdefghijklmnopqrstuvwxyz";
+ const char large_digits[] = "0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZ";
+ int i;
+
+ digits = (type & _kc_LARGE) ? large_digits : small_digits;
+ if (type & _kc_LEFT)
+ type &= ~_kc_ZEROPAD;
+ if (base < 2 || base > 36)
+ return 0;
+ c = (type & _kc_ZEROPAD) ? '0' : ' ';
+ sign = 0;
+ if (type & _kc_SIGN) {
+ if (num < 0) {
+ sign = '-';
+ num = -num;
+ size--;
+ } else if (type & _kc_PLUS) {
+ sign = '+';
+ size--;
+ } else if (type & _kc_SPACE) {
+ sign = ' ';
+ size--;
+ }
+ }
+ if (type & _kc_SPECIAL) {
+ if (base == 16)
+ size -= 2;
+ else if (base == 8)
+ size--;
+ }
+ i = 0;
+ if (num == 0)
+ tmp[i++] = '0';
+ else
+ while (num != 0)
+ tmp[i++] = digits[do_div(num, base)];
+ if (i > precision)
+ precision = i;
+ size -= precision;
+ if (!(type & (_kc_ZEROPAD + _kc_LEFT))) {
+ while (size-- > 0) {
+ if (buf <= end)
+ *buf = ' ';
+ ++buf;
+ }
+ }
+ if (sign) {
+ if (buf <= end)
+ *buf = sign;
+ ++buf;
+ }
+ if (type & _kc_SPECIAL) {
+ if (base == 8) {
+ if (buf <= end)
+ *buf = '0';
+ ++buf;
+ } else if (base == 16) {
+ if (buf <= end)
+ *buf = '0';
+ ++buf;
+ if (buf <= end)
+ *buf = digits[33];
+ ++buf;
+ }
+ }
+ if (!(type & _kc_LEFT)) {
+ while (size-- > 0) {
+ if (buf <= end)
+ *buf = c;
+ ++buf;
+ }
+ }
+ while (i < precision--) {
+ if (buf <= end)
+ *buf = '0';
+ ++buf;
+ }
+ while (i-- > 0) {
+ if (buf <= end)
+ *buf = tmp[i];
+ ++buf;
+ }
+ while (size-- > 0) {
+ if (buf <= end)
+ *buf = ' ';
+ ++buf;
+ }
+ return buf;
+}
+
+int _kc_vsnprintf(char *buf, size_t size, const char *fmt, va_list args)
+{
+ int len;
+ unsigned long long num;
+ int i, base;
+ char *str, *end, c;
+ const char *s;
+
+ int flags; /* flags to number() */
+
+ int field_width; /* width of output field */
+ int precision; /* min. # of digits for integers; max
+ number of chars for from string */
+ int qualifier; /* 'h', 'l', or 'L' for integer fields */
+ /* 'z' support added 23/7/1999 S.H. */
+ /* 'z' changed to 'Z' --davidm 1/25/99 */
+
+ str = buf;
+ end = buf + size - 1;
+
+ if (end < buf - 1) {
+ end = ((void *)-1);
+ size = end - buf + 1;
+ }
+
+ for (; *fmt; ++fmt) {
+ if (*fmt != '%') {
+ if (str <= end)
+ *str = *fmt;
+ ++str;
+ continue;
+ }
+
+ /* process flags */
+ flags = 0;
+repeat:
+ ++fmt; /* this also skips first '%' */
+ switch (*fmt) {
+ case '-':
+ flags |= _kc_LEFT;
+ goto repeat;
+ case '+':
+ flags |= _kc_PLUS;
+ goto repeat;
+ case ' ':
+ flags |= _kc_SPACE;
+ goto repeat;
+ case '#':
+ flags |= _kc_SPECIAL;
+ goto repeat;
+ case '0':
+ flags |= _kc_ZEROPAD;
+ goto repeat;
+ }
+
+ /* get field width */
+ field_width = -1;
+ if (isdigit(*fmt))
+ field_width = skip_atoi(&fmt);
+ else if (*fmt == '*') {
+ ++fmt;
+ /* it's the next argument */
+ field_width = va_arg(args, int);
+ if (field_width < 0) {
+ field_width = -field_width;
+ flags |= _kc_LEFT;
+ }
+ }
+
+ /* get the precision */
+ precision = -1;
+ if (*fmt == '.') {
+ ++fmt;
+ if (isdigit(*fmt))
+ precision = skip_atoi(&fmt);
+ else if (*fmt == '*') {
+ ++fmt;
+ /* it's the next argument */
+ precision = va_arg(args, int);
+ }
+ if (precision < 0)
+ precision = 0;
+ }
+
+ /* get the conversion qualifier */
+ qualifier = -1;
+ if (*fmt == 'h' || *fmt == 'l' || *fmt == 'L' || *fmt == 'Z') {
+ qualifier = *fmt;
+ ++fmt;
+ }
+
+ /* default base */
+ base = 10;
+
+ switch (*fmt) {
+ case 'c':
+ if (!(flags & _kc_LEFT)) {
+ while (--field_width > 0) {
+ if (str <= end)
+ *str = ' ';
+ ++str;
+ }
+ }
+ c = (unsigned char)va_arg(args, int);
+ if (str <= end)
+ *str = c;
+ ++str;
+ while (--field_width > 0) {
+ if (str <= end)
+ *str = ' ';
+ ++str;
+ }
+ continue;
+
+ case 's':
+ s = va_arg(args, char *);
+ if (!s)
+ s = "<NULL>";
+
+ len = strnlen(s, precision);
+
+ if (!(flags & _kc_LEFT)) {
+ while (len < field_width--) {
+ if (str <= end)
+ *str = ' ';
+ ++str;
+ }
+ }
+ for (i = 0; i < len; ++i) {
+ if (str <= end)
+ *str = *s;
+ ++str;
+ ++s;
+ }
+ while (len < field_width--) {
+ if (str <= end)
+ *str = ' ';
+ ++str;
+ }
+ continue;
+
+ case 'p':
+ if ('M' == *(fmt + 1)) {
+ str =
+ get_mac(str, end,
+ va_arg(args, unsigned char *));
+ fmt++;
+ } else {
+ if (field_width == -1) {
+ field_width = 2 * sizeof(void *);
+ flags |= _kc_ZEROPAD;
+ }
+ str = number(str, end,
+ (unsigned long)va_arg(args,
+ void *), 16,
+ field_width, precision, flags);
+ }
+ continue;
+
+ case 'n':
+ /* FIXME:
+ * What does C99 say about the overflow case here? */
+ if (qualifier == 'l') {
+ long *ip = va_arg(args, long *);
+ *ip = (str - buf);
+ } else if (qualifier == 'Z') {
+ size_t *ip = va_arg(args, size_t *);
+ *ip = (str - buf);
+ } else {
+ int *ip = va_arg(args, int *);
+ *ip = (str - buf);
+ }
+ continue;
+
+ case '%':
+ if (str <= end)
+ *str = '%';
+ ++str;
+ continue;
+
+ /* integer number formats - set up the flags and "break" */
+ case 'o':
+ base = 8;
+ break;
+
+ case 'X':
+ flags |= _kc_LARGE;
+ case 'x':
+ base = 16;
+ break;
+
+ case 'd':
+ case 'i':
+ flags |= _kc_SIGN;
+ case 'u':
+ break;
+
+ default:
+ if (str <= end)
+ *str = '%';
+ ++str;
+ if (*fmt) {
+ if (str <= end)
+ *str = *fmt;
+ ++str;
+ } else {
+ --fmt;
+ }
+ continue;
+ }
+ if (qualifier == 'L')
+ num = va_arg(args, long long);
+ else if (qualifier == 'l') {
+ num = va_arg(args, unsigned long);
+ if (flags & _kc_SIGN)
+ num = (signed long)num;
+ } else if (qualifier == 'Z') {
+ num = va_arg(args, size_t);
+ } else if (qualifier == 'h') {
+ num = (unsigned short)va_arg(args, int);
+ if (flags & _kc_SIGN)
+ num = (signed short)num;
+ } else {
+ num = va_arg(args, unsigned int);
+ if (flags & _kc_SIGN)
+ num = (signed int)num;
+ }
+ str = number(str, end, num, base,
+ field_width, precision, flags);
+ }
+ if (str <= end)
+ *str = '\0';
+ else if (size > 0)
+ /* don't write out a null byte if the buf size is zero */
+ *end = '\0';
+ /* the trailing null byte doesn't count towards the total
+ * ++str;
+ */
+ return str - buf;
+}
+
+int _kc_snprintf(char *buf, size_t size, const char *fmt, ...)
+{
+ va_list args;
+ int i;
+
+ va_start(args, fmt);
+ i = _kc_vsnprintf(buf, size, fmt, args);
+ va_end(args);
+ return i;
+}
+#endif /* < 2.4.8 */
+
+/*****************************************************************************/
+#if ( LINUX_VERSION_CODE < KERNEL_VERSION(2,4,13) )
+
+/**************************************/
+/* PCI DMA MAPPING */
+
+#if defined(CONFIG_HIGHMEM)
+
+#ifndef PCI_DRAM_OFFSET
+#define PCI_DRAM_OFFSET 0
+#endif
+
+u64
+_kc_pci_map_page(struct pci_dev *dev, struct page *page, unsigned long offset,
+ size_t size, int direction)
+{
+ return (((u64)(page - mem_map) << PAGE_SHIFT) + offset +
+ PCI_DRAM_OFFSET);
+}
+
+#else /* CONFIG_HIGHMEM */
+
+u64
+_kc_pci_map_page(struct pci_dev *dev, struct page *page, unsigned long offset,
+ size_t size, int direction)
+{
+ return pci_map_single(dev, (void *)page_address(page) + offset, size,
+ direction);
+}
+
+#endif /* CONFIG_HIGHMEM */
+
+void
+_kc_pci_unmap_page(struct pci_dev *dev, u64 dma_addr, size_t size,
+ int direction)
+{
+ return pci_unmap_single(dev, dma_addr, size, direction);
+}
+
+#endif /* 2.4.13 => 2.4.3 */
+
+/*****************************************************************************/
+#if ( LINUX_VERSION_CODE < KERNEL_VERSION(2,4,3) )
+
+/**************************************/
+/* PCI DRIVER API */
+
+int _kc_pci_set_dma_mask(struct pci_dev *dev, dma_addr_t mask)
+{
+ if (!pci_dma_supported(dev, mask))
+ return -EIO;
+ dev->dma_mask = mask;
+ return 0;
+}
+
+int _kc_pci_request_regions(struct pci_dev *dev, char *res_name)
+{
+ int i;
+
+ for (i = 0; i < 6; i++) {
+ if (pci_resource_len(dev, i) == 0)
+ continue;
+
+ if (pci_resource_flags(dev, i) & IORESOURCE_IO) {
+ if (!request_region
+ (pci_resource_start(dev, i),
+ pci_resource_len(dev, i), res_name)) {
+ pci_release_regions(dev);
+ return -EBUSY;
+ }
+ } else if (pci_resource_flags(dev, i) & IORESOURCE_MEM) {
+ if (!request_mem_region
+ (pci_resource_start(dev, i),
+ pci_resource_len(dev, i), res_name)) {
+ pci_release_regions(dev);
+ return -EBUSY;
+ }
+ }
+ }
+ return 0;
+}
+
+void _kc_pci_release_regions(struct pci_dev *dev)
+{
+ int i;
+
+ for (i = 0; i < 6; i++) {
+ if (pci_resource_len(dev, i) == 0)
+ continue;
+
+ if (pci_resource_flags(dev, i) & IORESOURCE_IO)
+ release_region(pci_resource_start(dev, i),
+ pci_resource_len(dev, i));
+
+ else if (pci_resource_flags(dev, i) & IORESOURCE_MEM)
+ release_mem_region(pci_resource_start(dev, i),
+ pci_resource_len(dev, i));
+ }
+}
+
+/**************************************/
+/* NETWORK DRIVER API */
+
+struct net_device *_kc_alloc_etherdev(int sizeof_priv)
+{
+ struct net_device *dev;
+ int alloc_size;
+
+ alloc_size = sizeof(*dev) + sizeof_priv + IFNAMSIZ + 31;
+ dev = kzalloc(alloc_size, GFP_KERNEL);
+ if (!dev)
+ return NULL;
+
+ if (sizeof_priv)
+ dev->priv = (void *)(((unsigned long)(dev + 1) + 31) & ~31);
+ dev->name[0] = '\0';
+ ether_setup(dev);
+
+ return dev;
+}
+
+int _kc_is_valid_ether_addr(u8 *addr)
+{
+ const char zaddr[6] = { 0, };
+
+ return !(addr[0] & 1) && memcmp(addr, zaddr, 6);
+}
+
+#endif /* 2.4.3 => 2.4.0 */
+
+/*****************************************************************************/
+#if ( LINUX_VERSION_CODE < KERNEL_VERSION(2,4,6) )
+
+int _kc_pci_set_power_state(struct pci_dev *dev, int state)
+{
+ return 0;
+}
+
+int _kc_pci_enable_wake(struct pci_dev *pdev, u32 state, int enable)
+{
+ return 0;
+}
+
+#endif /* 2.4.6 => 2.4.3 */
+
+/*****************************************************************************/
+#if ( LINUX_VERSION_CODE < KERNEL_VERSION(2,6,0) )
+void _kc_skb_fill_page_desc(struct sk_buff *skb, int i, struct page *page,
+ int off, int size)
+{
+ skb_frag_t *frag = &skb_shinfo(skb)->frags[i];
+ frag->page = page;
+ frag->page_offset = off;
+ frag->size = size;
+ skb_shinfo(skb)->nr_frags = i + 1;
+}
+
+/*
+ * Original Copyright:
+ * find_next_bit.c: fallback find next bit implementation
+ *
+ * Copyright (C) 2004 Red Hat, Inc. All Rights Reserved.
+ * Written by David Howells (dhowells@redhat.com)
+ */
+
+/**
+ * find_next_bit - find the next set bit in a memory region
+ * @addr: The address to base the search on
+ * @offset: The bitnumber to start searching at
+ * @size: The maximum size to search
+ */
+unsigned long find_next_bit(const unsigned long *addr, unsigned long size,
+ unsigned long offset)
+{
+ const unsigned long *p = addr + BITOP_WORD(offset);
+ unsigned long result = offset & ~(BITS_PER_LONG - 1);
+ unsigned long tmp;
+
+ if (offset >= size)
+ return size;
+ size -= result;
+ offset %= BITS_PER_LONG;
+ if (offset) {
+ tmp = *(p++);
+ tmp &= (~0UL << offset);
+ if (size < BITS_PER_LONG)
+ goto found_first;
+ if (tmp)
+ goto found_middle;
+ size -= BITS_PER_LONG;
+ result += BITS_PER_LONG;
+ }
+ while (size & ~(BITS_PER_LONG - 1)) {
+ if ((tmp = *(p++)))
+ goto found_middle;
+ result += BITS_PER_LONG;
+ size -= BITS_PER_LONG;
+ }
+ if (!size)
+ return result;
+ tmp = *p;
+
+found_first:
+ tmp &= (~0UL >> (BITS_PER_LONG - size));
+ if (tmp == 0UL) /* Are any bits set? */
+ return result + size; /* Nope. */
+found_middle:
+ return result + ffs(tmp);
+}
+
+size_t _kc_strlcpy(char *dest, const char *src, size_t size)
+{
+ size_t ret = strlen(src);
+
+ if (size) {
+ size_t len = (ret >= size) ? size - 1 : ret;
+ memcpy(dest, src, len);
+ dest[len] = '\0';
+ }
+ return ret;
+}
+
+#ifndef do_div
+#if BITS_PER_LONG == 32
+uint32_t __attribute__ ((weak)) _kc__div64_32(uint64_t * n, uint32_t base)
+{
+ uint64_t rem = *n;
+ uint64_t b = base;
+ uint64_t res, d = 1;
+ uint32_t high = rem >> 32;
+
+ /* Reduce the thing a bit first */
+ res = 0;
+ if (high >= base) {
+ high /= base;
+ res = (uint64_t) high << 32;
+ rem -= (uint64_t) (high * base) << 32;
+ }
+
+ while ((int64_t) b > 0 && b < rem) {
+ b = b + b;
+ d = d + d;
+ }
+
+ do {
+ if (rem >= b) {
+ rem -= b;
+ res += d;
+ }
+ b >>= 1;
+ d >>= 1;
+ } while (d);
+
+ *n = res;
+ return rem;
+}
+#endif /* BITS_PER_LONG == 32 */
+#endif /* do_div */
+#endif /* 2.6.0 => 2.4.6 */
+
+/*****************************************************************************/
+#if ( LINUX_VERSION_CODE < KERNEL_VERSION(2,6,4) )
+int _kc_scnprintf(char *buf, size_t size, const char *fmt, ...)
+{
+ va_list args;
+ int i;
+
+ va_start(args, fmt);
+ i = vsnprintf(buf, size, fmt, args);
+ va_end(args);
+ return (i >= size) ? (size - 1) : i;
+}
+#endif /* < 2.6.4 */
+
+/*****************************************************************************/
+#if ( LINUX_VERSION_CODE < KERNEL_VERSION(2,6,10) )
+DECLARE_BITMAP(_kcompat_node_online_map, MAX_NUMNODES) = {
+1};
+#endif /* < 2.6.10 */
+
+/*****************************************************************************/
+#if ( LINUX_VERSION_CODE < KERNEL_VERSION(2,6,13) )
+char *_kc_kstrdup(const char *s, unsigned int gfp)
+{
+ size_t len;
+ char *buf;
+
+ if (!s)
+ return NULL;
+
+ len = strlen(s) + 1;
+ buf = kmalloc(len, gfp);
+ if (buf)
+ memcpy(buf, s, len);
+ return buf;
+}
+#endif /* < 2.6.13 */
+
+/*****************************************************************************/
+#if ( LINUX_VERSION_CODE < KERNEL_VERSION(2,6,14) )
+void *_kc_kzalloc(size_t size, int flags)
+{
+ void *ret = kmalloc(size, flags);
+ if (ret)
+ memset(ret, 0, size);
+ return ret;
+}
+#endif /* <= 2.6.13 */
+
+/*****************************************************************************/
+#if ( LINUX_VERSION_CODE < KERNEL_VERSION(2,6,19) )
+int _kc_skb_pad(struct sk_buff *skb, int pad)
+{
+ int ntail;
+
+ /* If the skbuff is non linear tailroom is always zero.. */
+ if (!skb_cloned(skb) && skb_tailroom(skb) >= pad) {
+ memset(skb->data + skb->len, 0, pad);
+ return 0;
+ }
+
+ ntail = skb->data_len + pad - (skb->end - skb->tail);
+ if (likely(skb_cloned(skb) || ntail > 0)) {
+ if (pskb_expand_head(skb, 0, ntail, GFP_ATOMIC))
+ goto free_skb;
+ }
+#ifdef MAX_SKB_FRAGS
+ if (skb_is_nonlinear(skb) && !__pskb_pull_tail(skb, skb->data_len))
+ goto free_skb;
+
+#endif
+ memset(skb->data + skb->len, 0, pad);
+ return 0;
+
+free_skb:
+ kfree_skb(skb);
+ return -ENOMEM;
+}
+
+#if (!(RHEL_RELEASE_CODE && RHEL_RELEASE_CODE >= RHEL_RELEASE_VERSION(5,4)))
+int _kc_pci_save_state(struct pci_dev *pdev)
+{
+ struct net_device *netdev = pci_get_drvdata(pdev);
+ struct adapter_struct *adapter = netdev_priv(netdev);
+ int size = PCI_CONFIG_SPACE_LEN, i;
+ u16 pcie_cap_offset, pcie_link_status;
+
+#if ( LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,0) )
+ /* no ->dev for 2.4 kernels */
+ WARN_ON(pdev->dev.driver_data == NULL);
+#endif
+ pcie_cap_offset = pci_find_capability(pdev, PCI_CAP_ID_EXP);
+ if (pcie_cap_offset) {
+ if (!pci_read_config_word(pdev,
+ pcie_cap_offset + PCIE_LINK_STATUS,
+ &pcie_link_status))
+ size = PCIE_CONFIG_SPACE_LEN;
+ }
+ pci_config_space_ich8lan();
+#ifdef HAVE_PCI_ERS
+ if (adapter->config_space == NULL)
+#else
+ WARN_ON(adapter->config_space != NULL);
+#endif
+ adapter->config_space = kmalloc(size, GFP_KERNEL);
+ if (!adapter->config_space) {
+ printk(KERN_ERR "Out of memory in pci_save_state\n");
+ return -ENOMEM;
+ }
+ for (i = 0; i < (size / 4); i++)
+ pci_read_config_dword(pdev, i * 4, &adapter->config_space[i]);
+ return 0;
+}
+
+void _kc_pci_restore_state(struct pci_dev *pdev)
+{
+ struct net_device *netdev = pci_get_drvdata(pdev);
+ struct adapter_struct *adapter = netdev_priv(netdev);
+ int size = PCI_CONFIG_SPACE_LEN, i;
+ u16 pcie_cap_offset;
+ u16 pcie_link_status;
+
+ if (adapter->config_space != NULL) {
+ pcie_cap_offset = pci_find_capability(pdev, PCI_CAP_ID_EXP);
+ if (pcie_cap_offset &&
+ !pci_read_config_word(pdev,
+ pcie_cap_offset + PCIE_LINK_STATUS,
+ &pcie_link_status))
+ size = PCIE_CONFIG_SPACE_LEN;
+
+ pci_config_space_ich8lan();
+ for (i = 0; i < (size / 4); i++)
+ pci_write_config_dword(pdev, i * 4,
+ adapter->config_space[i]);
+#ifndef HAVE_PCI_ERS
+ kfree(adapter->config_space);
+ adapter->config_space = NULL;
+#endif
+ }
+}
+#endif /* !(RHEL_RELEASE_CODE >= RHEL 5.4) */
+
+#ifdef HAVE_PCI_ERS
+void _kc_free_netdev(struct net_device *netdev)
+{
+ struct adapter_struct *adapter = netdev_priv(netdev);
+
+ kfree(adapter->config_space);
+#ifdef CONFIG_SYSFS
+ if (netdev->reg_state == NETREG_UNINITIALIZED) {
+ kfree((char *)netdev - netdev->padded);
+ } else {
+ BUG_ON(netdev->reg_state != NETREG_UNREGISTERED);
+ netdev->reg_state = NETREG_RELEASED;
+ class_device_put(&netdev->class_dev);
+ }
+#else
+ kfree((char *)netdev - netdev->padded);
+#endif
+}
+#endif
+
+void *_kc_kmemdup(const void *src, size_t len, unsigned gfp)
+{
+ void *p;
+
+ p = kzalloc(len, gfp);
+ if (p)
+ memcpy(p, src, len);
+ return p;
+}
+#endif /* <= 2.6.19 */
+
+/*****************************************************************************/
+#if ( LINUX_VERSION_CODE < KERNEL_VERSION(2,6,21) )
+struct pci_dev *_kc_netdev_to_pdev(struct net_device *netdev)
+{
+ return ((struct adapter_struct *)netdev_priv(netdev))->pdev;
+}
+#endif /* < 2.6.21 */
+
+/*****************************************************************************/
+#if ( LINUX_VERSION_CODE < KERNEL_VERSION(2,6,22) )
+/* hexdump code taken from lib/hexdump.c */
+static void _kc_hex_dump_to_buffer(const void *buf, size_t len, int rowsize,
+ int groupsize, unsigned char *linebuf,
+ size_t linebuflen, bool ascii)
+{
+ const u8 *ptr = buf;
+ u8 ch;
+ int j, lx = 0;
+ int ascii_column;
+
+ if (rowsize != 16 && rowsize != 32)
+ rowsize = 16;
+
+ if (!len)
+ goto nil;
+ if (len > rowsize) /* limit to one line at a time */
+ len = rowsize;
+ if ((len % groupsize) != 0) /* no mixed size output */
+ groupsize = 1;
+
+ switch (groupsize) {
+ case 8:{
+ const u64 *ptr8 = buf;
+ int ngroups = len / groupsize;
+
+ for (j = 0; j < ngroups; j++)
+ lx +=
+ scnprintf((char *)(linebuf + lx),
+ linebuflen - lx, "%s%16.16llx",
+ j ? " " : "",
+ (unsigned long long)*(ptr8 + j));
+ ascii_column = 17 * ngroups + 2;
+ break;
+ }
+
+ case 4:{
+ const u32 *ptr4 = buf;
+ int ngroups = len / groupsize;
+
+ for (j = 0; j < ngroups; j++)
+ lx +=
+ scnprintf((char *)(linebuf + lx),
+ linebuflen - lx, "%s%8.8x",
+ j ? " " : "", *(ptr4 + j));
+ ascii_column = 9 * ngroups + 2;
+ break;
+ }
+
+ case 2:{
+ const u16 *ptr2 = buf;
+ int ngroups = len / groupsize;
+
+ for (j = 0; j < ngroups; j++)
+ lx +=
+ scnprintf((char *)(linebuf + lx),
+ linebuflen - lx, "%s%4.4x",
+ j ? " " : "", *(ptr2 + j));
+ ascii_column = 5 * ngroups + 2;
+ break;
+ }
+
+ default:
+ for (j = 0; (j < len) && (lx + 3) <= linebuflen; j++) {
+ ch = ptr[j];
+ linebuf[lx++] = hex_asc(ch >> 4);
+ linebuf[lx++] = hex_asc(ch & 0x0f);
+ linebuf[lx++] = ' ';
+ }
+ if (j)
+ lx--;
+
+ ascii_column = 3 * rowsize + 2;
+ break;
+ }
+ if (!ascii)
+ goto nil;
+
+ while (lx < (linebuflen - 1) && lx < (ascii_column - 1))
+ linebuf[lx++] = ' ';
+ for (j = 0; (j < len) && (lx + 2) < linebuflen; j++)
+ linebuf[lx++] = (isascii(ptr[j]) && isprint(ptr[j])) ? ptr[j]
+ : '.';
+nil:
+ linebuf[lx++] = '\0';
+}
+
+void _kc_print_hex_dump(const char *level,
+ const char *prefix_str, int prefix_type,
+ int rowsize, int groupsize,
+ const void *buf, size_t len, bool ascii)
+{
+ const u8 *ptr = buf;
+ int i, linelen, remaining = len;
+ unsigned char linebuf[200];
+
+ if (rowsize != 16 && rowsize != 32)
+ rowsize = 16;
+
+ for (i = 0; i < len; i += rowsize) {
+ linelen = min(remaining, rowsize);
+ remaining -= rowsize;
+ _kc_hex_dump_to_buffer(ptr + i, linelen, rowsize, groupsize,
+ linebuf, sizeof(linebuf), ascii);
+
+ switch (prefix_type) {
+ case DUMP_PREFIX_ADDRESS:
+ printk("%s%s%*p: %s\n", level, prefix_str,
+ (int)(2 * sizeof(void *)), ptr + i, linebuf);
+ break;
+ case DUMP_PREFIX_OFFSET:
+ printk("%s%s%.8x: %s\n", level, prefix_str, i, linebuf);
+ break;
+ default:
+ printk("%s%s%s\n", level, prefix_str, linebuf);
+ break;
+ }
+ }
+}
+
+#endif /* < 2.6.22 */
+
+/*****************************************************************************/
+#if ( LINUX_VERSION_CODE < KERNEL_VERSION(2,6,24) )
+#ifdef NAPI
+
+int __kc_adapter_clean(struct net_device *netdev, int *budget)
+{
+ int work_done;
+ int work_to_do = min(*budget, netdev->quota);
+ struct adapter_struct *adapter = netdev_priv(netdev);
+ struct napi_struct *napi = &adapter->napi;
+ work_done = napi->poll(napi, work_to_do);
+ *budget -= work_done;
+ netdev->quota -= work_done;
+ return (work_done >= work_to_do) ? 1 : 0;
+}
+#endif /* NAPI */
+#endif /* <= 2.6.24 */
+
+/*****************************************************************************/
+#if ( LINUX_VERSION_CODE < KERNEL_VERSION(2,6,26) )
+void _kc_pci_disable_link_state(struct pci_dev *pdev, int state)
+{
+ struct pci_dev *parent = pdev->bus->self;
+ u16 link_state;
+ int pos;
+
+ if (!parent)
+ return;
+
+ pos = pci_find_capability(parent, PCI_CAP_ID_EXP);
+ if (pos) {
+ pci_read_config_word(parent, pos + PCI_EXP_LNKCTL, &link_state);
+ link_state &= ~state;
+ pci_write_config_word(parent, pos + PCI_EXP_LNKCTL, link_state);
+ }
+}
+#endif /* < 2.6.26 */
+
+/*****************************************************************************/
+#if ( LINUX_VERSION_CODE < KERNEL_VERSION(2,6,27) )
+#ifdef HAVE_TX_MQ
+void _kc_netif_tx_stop_all_queues(struct net_device *netdev)
+{
+ struct adapter_struct *adapter = netdev_priv(netdev);
+ int i;
+
+ netif_stop_queue(netdev);
+ if (netif_is_multiqueue(netdev))
+ for (i = 0; i < adapter->num_tx_queues; i++)
+ netif_stop_subqueue(netdev, i);
+}
+
+void _kc_netif_tx_wake_all_queues(struct net_device *netdev)
+{
+ struct adapter_struct *adapter = netdev_priv(netdev);
+ int i;
+
+ netif_wake_queue(netdev);
+ if (netif_is_multiqueue(netdev))
+ for (i = 0; i < adapter->num_tx_queues; i++)
+ netif_wake_subqueue(netdev, i);
+}
+
+void _kc_netif_tx_start_all_queues(struct net_device *netdev)
+{
+ struct adapter_struct *adapter = netdev_priv(netdev);
+ int i;
+
+ netif_start_queue(netdev);
+ if (netif_is_multiqueue(netdev))
+ for (i = 0; i < adapter->num_tx_queues; i++)
+ netif_start_subqueue(netdev, i);
+}
+#endif /* HAVE_TX_MQ */
+
+void __kc_warn_slowpath(const char *file, int line, const char *fmt, ...)
+{
+ va_list args;
+
+ printk(KERN_WARNING "------------[ cut here ]------------\n");
+ printk(KERN_WARNING "WARNING: at %s:%d \n", file, line);
+ va_start(args, fmt);
+ vprintk(fmt, args);
+ va_end(args);
+
+ dump_stack();
+}
+#endif /* __VMKLNX__ */
+
+/*****************************************************************************/
+#if ( LINUX_VERSION_CODE < KERNEL_VERSION(2,6,28) )
+
+int _kc_pci_prepare_to_sleep(struct pci_dev *dev)
+{
+ pci_power_t target_state;
+ int error;
+
+ target_state = pci_choose_state(dev, PMSG_SUSPEND);
+
+ pci_enable_wake(dev, target_state, true);
+
+ error = pci_set_power_state(dev, target_state);
+
+ if (error)
+ pci_enable_wake(dev, target_state, false);
+
+ return error;
+}
+
+int _kc_pci_wake_from_d3(struct pci_dev *dev, bool enable)
+{
+ int err;
+
+ err = pci_enable_wake(dev, PCI_D3cold, enable);
+ if (err)
+ goto out;
+
+ err = pci_enable_wake(dev, PCI_D3hot, enable);
+
+out:
+ return err;
+}
+#endif /* < 2.6.28 */
+
+/*****************************************************************************/
+#if ( LINUX_VERSION_CODE < KERNEL_VERSION(2,6,29) )
+static void __kc_pci_set_master(struct pci_dev *pdev, bool enable)
+{
+ u16 old_cmd, cmd;
+
+ pci_read_config_word(pdev, PCI_COMMAND, &old_cmd);
+ if (enable)
+ cmd = old_cmd | PCI_COMMAND_MASTER;
+ else
+ cmd = old_cmd & ~PCI_COMMAND_MASTER;
+ if (cmd != old_cmd) {
+ dev_dbg(pci_dev_to_dev(pdev), "%s bus mastering\n",
+ enable ? "enabling" : "disabling");
+ pci_write_config_word(pdev, PCI_COMMAND, cmd);
+ }
+#if ( LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,7) )
+ pdev->is_busmaster = enable;
+#endif
+}
+
+void _kc_pci_clear_master(struct pci_dev *dev)
+{
+ __kc_pci_set_master(dev, false);
+}
+#endif /* < 2.6.29 */
+
+#if ( LINUX_VERSION_CODE < KERNEL_VERSION(2,6,34) )
+#if (RHEL_RELEASE_CODE < RHEL_RELEASE_VERSION(6,0))
+int _kc_pci_num_vf(struct pci_dev __maybe_unused * dev)
+{
+ int num_vf = 0;
+#ifdef CONFIG_PCI_IOV
+ struct pci_dev *vfdev;
+
+ /* loop through all ethernet devices starting at PF dev */
+ vfdev = pci_get_class(PCI_CLASS_NETWORK_ETHERNET << 8, NULL);
+ while (vfdev) {
+ if (vfdev->is_virtfn && vfdev->physfn == dev)
+ num_vf++;
+
+ vfdev = pci_get_class(PCI_CLASS_NETWORK_ETHERNET << 8, vfdev);
+ }
+
+#endif
+ return num_vf;
+}
+#endif /* RHEL_RELEASE_CODE */
+#endif /* < 2.6.34 */
+
+#if ( LINUX_VERSION_CODE < KERNEL_VERSION(2,6,35) )
+#endif /* < 2.6.35 */
+
+/*****************************************************************************/
+#if ( LINUX_VERSION_CODE < KERNEL_VERSION(2,6,36) )
+static const u32 _kc_flags_dup_features =
+ (ETH_FLAG_LRO | ETH_FLAG_NTUPLE | ETH_FLAG_RXHASH);
+
+u32 _kc_ethtool_op_get_flags(struct net_device *dev)
+{
+ return dev->features & _kc_flags_dup_features;
+}
+
+int _kc_ethtool_op_set_flags(struct net_device *dev, u32 data, u32 supported)
+{
+ if (data & ~supported)
+ return -EINVAL;
+
+ dev->features = ((dev->features & ~_kc_flags_dup_features) |
+ (data & _kc_flags_dup_features));
+ return 0;
+}
+#endif /* < 2.6.36 */
+
+/******************************************************************************/
+#if ( LINUX_VERSION_CODE < KERNEL_VERSION(2,6,39) )
+#if (!(RHEL_RELEASE_CODE && RHEL_RELEASE_CODE > RHEL_RELEASE_VERSION(6,0)))
+
+#endif /* !(RHEL_RELEASE_CODE > RHEL_RELEASE_VERSION(6,0)) */
+#endif /* < 2.6.39 */
+
+/******************************************************************************/
+#if ( LINUX_VERSION_CODE < KERNEL_VERSION(3,4,0) )
+void _kc_skb_add_rx_frag(struct sk_buff *skb, int i, struct page *page,
+ int off, int size, unsigned int truesize)
+{
+ skb_fill_page_desc(skb, i, page, off, size);
+ skb->len += size;
+ skb->data_len += size;
+ skb->truesize += truesize;
+}
+
+#if !(SLE_VERSION_CODE && SLE_VERSION_CODE >= SLE_VERSION(11,3,0))
+int _kc_simple_open(struct inode *inode, struct file *file)
+{
+ if (inode->i_private)
+ file->private_data = inode->i_private;
+
+ return 0;
+}
+#endif /* SLE_VERSION < 11,3,0 */
+
+#endif /* < 3.4.0 */
+
+/******************************************************************************/
+#if ( LINUX_VERSION_CODE < KERNEL_VERSION(3,7,0) )
+static inline int __kc_pcie_cap_version(struct pci_dev *dev)
+{
+ int pos;
+ u16 reg16;
+
+ pos = pci_find_capability(dev, PCI_CAP_ID_EXP);
+ if (!pos)
+ return 0;
+ pci_read_config_word(dev, pos + PCI_EXP_FLAGS, &reg16);
+ return reg16 & PCI_EXP_FLAGS_VERS;
+}
+
+static inline bool __kc_pcie_cap_has_devctl(const struct pci_dev __always_unused
+ *dev)
+{
+ return true;
+}
+
+static inline bool __kc_pcie_cap_has_lnkctl(struct pci_dev *dev)
+{
+ int type = pci_pcie_type(dev);
+
+ return __kc_pcie_cap_version(dev) > 1 ||
+ type == PCI_EXP_TYPE_ROOT_PORT ||
+ type == PCI_EXP_TYPE_ENDPOINT || type == PCI_EXP_TYPE_LEG_END;
+}
+
+static inline bool __kc_pcie_cap_has_sltctl(struct pci_dev *dev)
+{
+ int type = pci_pcie_type(dev);
+ int pos;
+ u16 pcie_flags_reg;
+
+ pos = pci_find_capability(dev, PCI_CAP_ID_EXP);
+ if (!pos)
+ return false;
+ pci_read_config_word(dev, pos + PCI_EXP_FLAGS, &pcie_flags_reg);
+
+ return __kc_pcie_cap_version(dev) > 1 ||
+ type == PCI_EXP_TYPE_ROOT_PORT ||
+ (type == PCI_EXP_TYPE_DOWNSTREAM &&
+ pcie_flags_reg & PCI_EXP_FLAGS_SLOT);
+}
+
+static inline bool __kc_pcie_cap_has_rtctl(struct pci_dev *dev)
+{
+ int type = pci_pcie_type(dev);
+
+ return __kc_pcie_cap_version(dev) > 1 ||
+ type == PCI_EXP_TYPE_ROOT_PORT || type == PCI_EXP_TYPE_RC_EC;
+}
+
+static bool __kc_pcie_capability_reg_implemented(struct pci_dev *dev, int pos)
+{
+ if (!pci_is_pcie(dev))
+ return false;
+
+ switch (pos) {
+ case PCI_EXP_FLAGS_TYPE:
+ return true;
+ case PCI_EXP_DEVCAP:
+ case PCI_EXP_DEVCTL:
+ case PCI_EXP_DEVSTA:
+ return __kc_pcie_cap_has_devctl(dev);
+ case PCI_EXP_LNKCAP:
+ case PCI_EXP_LNKCTL:
+ case PCI_EXP_LNKSTA:
+ return __kc_pcie_cap_has_lnkctl(dev);
+ case PCI_EXP_SLTCAP:
+ case PCI_EXP_SLTCTL:
+ case PCI_EXP_SLTSTA:
+ return __kc_pcie_cap_has_sltctl(dev);
+ case PCI_EXP_RTCTL:
+ case PCI_EXP_RTCAP:
+ case PCI_EXP_RTSTA:
+ return __kc_pcie_cap_has_rtctl(dev);
+ case PCI_EXP_DEVCAP2:
+ case PCI_EXP_DEVCTL2:
+ case PCI_EXP_LNKCAP2:
+ case PCI_EXP_LNKCTL2:
+ case PCI_EXP_LNKSTA2:
+ return __kc_pcie_cap_version(dev) > 1;
+ default:
+ return false;
+ }
+}
+
+/*
+ * Note that these accessor functions are only for the "PCI Express
+ * Capability" (see PCIe spec r3.0, sec 7.8). They do not apply to the
+ * other "PCI Express Extended Capabilities" (AER, VC, ACS, MFVC, etc.)
+ */
+int __kc_pcie_capability_read_word(struct pci_dev *dev, int pos, u16 *val)
+{
+ int ret;
+
+ *val = 0;
+ if (pos & 1)
+ return -EINVAL;
+
+ if (__kc_pcie_capability_reg_implemented(dev, pos)) {
+ ret = pci_read_config_word(dev, pci_pcie_cap(dev) + pos, val);
+ /*
+ * Reset *val to 0 if pci_read_config_word() fails, it may
+ * have been written as 0xFFFF if hardware error happens
+ * during pci_read_config_word().
+ */
+ if (ret)
+ *val = 0;
+ return ret;
+ }
+
+ /*
+ * For Functions that do not implement the Slot Capabilities,
+ * Slot Status, and Slot Control registers, these spaces must
+ * be hardwired to 0b, with the exception of the Presence Detect
+ * State bit in the Slot Status register of Downstream Ports,
+ * which must be hardwired to 1b. (PCIe Base Spec 3.0, sec 7.8)
+ */
+ if (pci_is_pcie(dev) && pos == PCI_EXP_SLTSTA &&
+ pci_pcie_type(dev) == PCI_EXP_TYPE_DOWNSTREAM) {
+ *val = PCI_EXP_SLTSTA_PDS;
+ }
+
+ return 0;
+}
+
+int __kc_pcie_capability_read_dword(struct pci_dev *dev, int pos, u32 *val)
+{
+ int ret;
+
+ *val = 0;
+ if (pos & 3)
+ return -EINVAL;
+
+ if (__kc_pcie_capability_reg_implemented(dev, pos)) {
+ ret = pci_read_config_dword(dev, pci_pcie_cap(dev) + pos, val);
+ /*
+ * Reset *val to 0 if pci_read_config_dword() fails, it may
+ * have been written as 0xFFFFFFFF if hardware error happens
+ * during pci_read_config_dword().
+ */
+ if (ret)
+ *val = 0;
+ return ret;
+ }
+
+ if (pci_is_pcie(dev) && pos == PCI_EXP_SLTSTA &&
+ pci_pcie_type(dev) == PCI_EXP_TYPE_DOWNSTREAM) {
+ *val = PCI_EXP_SLTSTA_PDS;
+ }
+
+ return 0;
+}
+
+int __kc_pcie_capability_write_word(struct pci_dev *dev, int pos, u16 val)
+{
+ if (pos & 1)
+ return -EINVAL;
+
+ if (!__kc_pcie_capability_reg_implemented(dev, pos))
+ return 0;
+
+ return pci_write_config_word(dev, pci_pcie_cap(dev) + pos, val);
+}
+
+int __kc_pcie_capability_clear_and_set_word(struct pci_dev *dev, int pos,
+ u16 clear, u16 set)
+{
+ int ret;
+ u16 val;
+
+ ret = __kc_pcie_capability_read_word(dev, pos, &val);
+ if (!ret) {
+ val &= ~clear;
+ val |= set;
+ ret = __kc_pcie_capability_write_word(dev, pos, val);
+ }
+
+ return ret;
+}
+
+int __kc_pcie_capability_clear_word(struct pci_dev *dev, int pos, u16 clear)
+{
+ return __kc_pcie_capability_clear_and_set_word(dev, pos, clear, 0);
+}
+#endif /* < 3.7.0 */
+
+/******************************************************************************/
+#if ( LINUX_VERSION_CODE < KERNEL_VERSION(3,9,0) )
+#endif /* 3.9.0 */
+
+/*****************************************************************************/
+#if ( LINUX_VERSION_CODE < KERNEL_VERSION(3,10,0) )
+#endif /* 3.10.0 */
+
+static const unsigned char __maybe_unused pcie_link_speed[] = {
+ PCI_SPEED_UNKNOWN, /* 0 */
+ PCIE_SPEED_2_5GT, /* 1 */
+ PCIE_SPEED_5_0GT, /* 2 */
+ PCIE_SPEED_8_0GT, /* 3 */
+ PCIE_SPEED_16_0GT, /* 4 */
+ PCI_SPEED_UNKNOWN, /* 5 */
+ PCI_SPEED_UNKNOWN, /* 6 */
+ PCI_SPEED_UNKNOWN, /* 7 */
+ PCI_SPEED_UNKNOWN, /* 8 */
+ PCI_SPEED_UNKNOWN, /* 9 */
+ PCI_SPEED_UNKNOWN, /* A */
+ PCI_SPEED_UNKNOWN, /* B */
+ PCI_SPEED_UNKNOWN, /* C */
+ PCI_SPEED_UNKNOWN, /* D */
+ PCI_SPEED_UNKNOWN, /* E */
+ PCI_SPEED_UNKNOWN /* F */
+};
+
+/*****************************************************************************/
+#if ( LINUX_VERSION_CODE < KERNEL_VERSION(3,12,0) )
+int __kc_pcie_get_minimum_link(struct pci_dev *dev, enum pci_bus_speed *speed,
+ enum pcie_link_width *width)
+{
+ int ret;
+
+ *speed = PCI_SPEED_UNKNOWN;
+ *width = PCIE_LNK_WIDTH_UNKNOWN;
+
+ while (dev) {
+ u16 lnksta;
+ enum pci_bus_speed next_speed;
+ enum pcie_link_width next_width;
+
+ ret = pcie_capability_read_word(dev, PCI_EXP_LNKSTA, &lnksta);
+ if (ret)
+ return ret;
+
+ next_speed = pcie_link_speed[lnksta & PCI_EXP_LNKSTA_CLS];
+ next_width = (lnksta & PCI_EXP_LNKSTA_NLW) >>
+ PCI_EXP_LNKSTA_NLW_SHIFT;
+
+ if (next_speed < *speed)
+ *speed = next_speed;
+
+ if (next_width < *width)
+ *width = next_width;
+
+ dev = dev->bus->self;
+ }
+
+ return 0;
+}
+
+#if (RHEL_RELEASE_CODE < RHEL_RELEASE_VERSION(6,7))
+int _kc_pci_wait_for_pending_transaction(struct pci_dev *dev)
+{
+ int i;
+ u16 status;
+
+ /* Wait for Transaction Pending bit clean */
+ for (i = 0; i < 4; i++) {
+ if (i)
+ msleep((1 << (i - 1)) * 100);
+
+ pcie_capability_read_word(dev, PCI_EXP_DEVSTA, &status);
+ if (!(status & PCI_EXP_DEVSTA_TRPND))
+ return 1;
+ }
+
+ return 0;
+}
+#endif /* <RHEL6.7 */
+
+#endif /* <3.12 */
+
+#if ( LINUX_VERSION_CODE < KERNEL_VERSION(3,13,0) )
+int __kc_dma_set_mask_and_coherent(struct device *dev, u64 mask)
+{
+ int err = dma_set_mask(dev, mask);
+
+ if (!err)
+ /* coherent mask for the same size will always succeed if
+ * dma_set_mask does. However we store the error anyways, due
+ * to some kernels which use gcc's warn_unused_result on their
+ * definition of dma_set_coherent_mask.
+ */
+ err = dma_set_coherent_mask(dev, mask);
+ return err;
+}
+
+#if (RHEL_RELEASE_CODE < RHEL_RELEASE_VERSION(7,0))
+static bool _kc_pci_bus_read_dev_vendor_id(struct pci_bus *bus, int devfn,
+ u32 *l, int crs_timeout)
+{
+ int delay = 1;
+
+ if (pci_bus_read_config_dword(bus, devfn, PCI_VENDOR_ID, l))
+ return false;
+
+ /* some broken boards return 0 or ~0 if a slot is empty: */
+ if (*l == 0xffffffff || *l == 0x00000000 ||
+ *l == 0x0000ffff || *l == 0xffff0000)
+ return false;
+
+ /* Configuration request Retry Status */
+ while (*l == 0xffff0001) {
+ if (!crs_timeout)
+ return false;
+
+ msleep(delay);
+ delay *= 2;
+ if (pci_bus_read_config_dword(bus, devfn, PCI_VENDOR_ID, l))
+ return false;
+ /* Card hasn't responded in 60 seconds? Must be stuck. */
+ if (delay > crs_timeout) {
+ printk(KERN_WARNING "pci %04x:%02x:%02x.%d: not "
+ "responding\n", pci_domain_nr(bus),
+ bus->number, PCI_SLOT(devfn), PCI_FUNC(devfn));
+ return false;
+ }
+ }
+
+ return true;
+}
+
+bool _kc_pci_device_is_present(struct pci_dev *pdev)
+{
+ u32 v;
+
+ return _kc_pci_bus_read_dev_vendor_id(pdev->bus, pdev->devfn, &v, 0);
+}
+#endif /* <RHEL7.0 */
+#endif /* 3.13.0 */
+
+#if ( LINUX_VERSION_CODE < KERNEL_VERSION(3,14,0) )
+/******************************************************************************
+ * ripped from linux/net/ipv6/exthdrs_core.c, GPL2, no direct copyright,
+ * inferred copyright from kernel
+ */
+int __kc_ipv6_find_hdr(const struct sk_buff *skb, unsigned int *offset,
+ int target, unsigned short *fragoff, int *flags)
+{
+ unsigned int start = skb_network_offset(skb) + sizeof(struct ipv6hdr);
+ u8 nexthdr = ipv6_hdr(skb)->nexthdr;
+ unsigned int len;
+ bool found;
+
+#define __KC_IP6_FH_F_FRAG BIT(0)
+#define __KC_IP6_FH_F_AUTH BIT(1)
+#define __KC_IP6_FH_F_SKIP_RH BIT(2)
+
+ if (fragoff)
+ *fragoff = 0;
+
+ if (*offset) {
+ struct ipv6hdr _ip6, *ip6;
+
+ ip6 = skb_header_pointer(skb, *offset, sizeof(_ip6), &_ip6);
+ if (!ip6 || (ip6->version != 6)) {
+ printk(KERN_ERR "IPv6 header not found\n");
+ return -EBADMSG;
+ }
+ start = *offset + sizeof(struct ipv6hdr);
+ nexthdr = ip6->nexthdr;
+ }
+ len = skb->len - start;
+
+ do {
+ struct ipv6_opt_hdr _hdr, *hp;
+ unsigned int hdrlen;
+ found = (nexthdr == target);
+
+ if ((!ipv6_ext_hdr(nexthdr)) || nexthdr == NEXTHDR_NONE) {
+ if (target < 0 || found)
+ break;
+ return -ENOENT;
+ }
+
+ hp = skb_header_pointer(skb, start, sizeof(_hdr), &_hdr);
+ if (!hp)
+ return -EBADMSG;
+
+ if (nexthdr == NEXTHDR_ROUTING) {
+ struct ipv6_rt_hdr _rh, *rh;
+
+ rh = skb_header_pointer(skb, start, sizeof(_rh), &_rh);
+ if (!rh)
+ return -EBADMSG;
+
+ if (flags && (*flags & __KC_IP6_FH_F_SKIP_RH) &&
+ rh->segments_left == 0)
+ found = false;
+ }
+
+ if (nexthdr == NEXTHDR_FRAGMENT) {
+ unsigned short _frag_off;
+ __be16 *fp;
+
+ if (flags) /* Indicate that this is a fragment */
+ *flags |= __KC_IP6_FH_F_FRAG;
+ fp = skb_header_pointer(skb,
+ start +
+ offsetof(struct frag_hdr,
+ frag_off),
+ sizeof(_frag_off), &_frag_off);
+ if (!fp)
+ return -EBADMSG;
+
+ _frag_off = ntohs(*fp) & ~0x7;
+ if (_frag_off) {
+ if (target < 0 &&
+ ((!ipv6_ext_hdr(hp->nexthdr)) ||
+ hp->nexthdr == NEXTHDR_NONE)) {
+ if (fragoff)
+ *fragoff = _frag_off;
+ return hp->nexthdr;
+ }
+ return -ENOENT;
+ }
+ hdrlen = 8;
+ } else if (nexthdr == NEXTHDR_AUTH) {
+ if (flags && (*flags & __KC_IP6_FH_F_AUTH)
+ && (target < 0))
+ break;
+ hdrlen = (hp->hdrlen + 2) << 2;
+ } else
+ hdrlen = ipv6_optlen(hp);
+
+ if (!found) {
+ nexthdr = hp->nexthdr;
+ len -= hdrlen;
+ start += hdrlen;
+ }
+ } while (!found);
+
+ *offset = start;
+ return nexthdr;
+}
+
+int __kc_pci_enable_msix_range(struct pci_dev *dev, struct msix_entry *entries,
+ int minvec, int maxvec)
+{
+ int nvec = maxvec;
+ int rc;
+
+ if (maxvec < minvec)
+ return -ERANGE;
+
+ do {
+ rc = pci_enable_msix(dev, entries, nvec);
+ if (rc < 0) {
+ return rc;
+ } else if (rc > 0) {
+ if (rc < minvec)
+ return -ENOSPC;
+ nvec = rc;
+ }
+ } while (rc);
+
+ return nvec;
+}
+#endif /* 3.14.0 */
+
+#if (LINUX_VERSION_CODE < KERNEL_VERSION(3,15,0))
+char *_kc_devm_kstrdup(struct device *dev, const char *s, gfp_t gfp)
+{
+ size_t size;
+ char *buf;
+
+ if (!s)
+ return NULL;
+
+ size = strlen(s) + 1;
+ buf = devm_kzalloc(dev, size, gfp);
+ if (buf)
+ memcpy(buf, s, size);
+ return buf;
+}
+
+void __kc_netdev_rss_key_fill(void *buffer, size_t len)
+{
+ /* Set of random keys generated using kernel random number generator */
+ static const u8 seed[NETDEV_RSS_KEY_LEN] = { 0xE6, 0xFA, 0x35, 0x62,
+ 0x95, 0x12, 0x3E, 0xA3, 0xFB, 0x46, 0xC1, 0x5F,
+ 0xB1, 0x43, 0x82, 0x5B, 0x6A, 0x49, 0x50, 0x95,
+ 0xCD, 0xAB, 0xD8, 0x11, 0x8F, 0xC5, 0xBD, 0xBC,
+ 0x6A, 0x4A, 0xB2, 0xD4, 0x1F, 0xFE, 0xBC, 0x41,
+ 0xBF, 0xAC, 0xB2, 0x9A, 0x8F, 0x70, 0xE9, 0x2A,
+ 0xD7, 0xB2, 0x80, 0xB6, 0x5B, 0xAA, 0x9D, 0x20
+ };
+
+ BUG_ON(len > NETDEV_RSS_KEY_LEN);
+ memcpy(buffer, seed, len);
+}
+#endif /* 3.15.0 */
+
+#if ( LINUX_VERSION_CODE < KERNEL_VERSION(3,16,0) )
+#ifdef HAVE_SET_RX_MODE
+#ifdef NETDEV_HW_ADDR_T_UNICAST
+int __kc_hw_addr_sync_dev(struct netdev_hw_addr_list *list,
+ struct net_device *dev,
+ int (*sync) (struct net_device *,
+ const unsigned char *),
+ int (*unsync) (struct net_device *,
+ const unsigned char *))
+{
+ struct netdev_hw_addr *ha, *tmp;
+ int err;
+
+ /* first go through and flush out any stale entries */
+ list_for_each_entry_safe(ha, tmp, &list->list, list) {
+#if ( LINUX_VERSION_CODE < KERNEL_VERSION(3,10,0) )
+ if (!ha->synced || ha->refcount != 1)
+#else
+ if (!ha->sync_cnt || ha->refcount != 1)
+#endif
+ continue;
+
+ if (unsync && unsync(dev, ha->addr))
+ continue;
+
+ list_del_rcu(&ha->list);
+ kfree_rcu(ha, rcu_head);
+ list->count--;
+ }
+
+ /* go through and sync new entries to the list */
+ list_for_each_entry_safe(ha, tmp, &list->list, list) {
+#if ( LINUX_VERSION_CODE < KERNEL_VERSION(3,10,0) )
+ if (ha->synced)
+#else
+ if (ha->sync_cnt)
+#endif
+ continue;
+
+ err = sync(dev, ha->addr);
+ if (err)
+ return err;
+#if ( LINUX_VERSION_CODE < KERNEL_VERSION(3,10,0) )
+ ha->synced = true;
+#else
+ ha->sync_cnt++;
+#endif
+ ha->refcount++;
+ }
+
+ return 0;
+}
+
+void __kc_hw_addr_unsync_dev(struct netdev_hw_addr_list *list,
+ struct net_device *dev,
+ int (*unsync) (struct net_device *,
+ const unsigned char *))
+{
+ struct netdev_hw_addr *ha, *tmp;
+
+ list_for_each_entry_safe(ha, tmp, &list->list, list) {
+#if ( LINUX_VERSION_CODE < KERNEL_VERSION(3,10,0) )
+ if (!ha->synced)
+#else
+ if (!ha->sync_cnt)
+#endif
+ continue;
+
+ if (unsync && unsync(dev, ha->addr))
+ continue;
+
+#if ( LINUX_VERSION_CODE < KERNEL_VERSION(3,10,0) )
+ ha->synced = false;
+#else
+ ha->sync_cnt--;
+#endif
+ if (--ha->refcount)
+ continue;
+
+ list_del_rcu(&ha->list);
+ kfree_rcu(ha, rcu_head);
+ list->count--;
+ }
+}
+
+#endif /* NETDEV_HW_ADDR_T_UNICAST */
+#ifndef NETDEV_HW_ADDR_T_MULTICAST
+int __kc_dev_addr_sync_dev(struct dev_addr_list **list, int *count,
+ struct net_device *dev,
+ int (*sync) (struct net_device *,
+ const unsigned char *),
+ int (*unsync) (struct net_device *,
+ const unsigned char *))
+{
+ struct dev_addr_list *da, **next = list;
+ int err;
+
+ /* first go through and flush out any stale entries */
+ while ((da = *next) != NULL) {
+ if (da->da_synced && da->da_users == 1) {
+ if (!unsync || !unsync(dev, da->da_addr)) {
+ *next = da->next;
+ kfree(da);
+ (*count)--;
+ continue;
+ }
+ }
+ next = &da->next;
+ }
+
+ /* go through and sync new entries to the list */
+ for (da = *list; da != NULL; da = da->next) {
+ if (da->da_synced)
+ continue;
+
+ err = sync(dev, da->da_addr);
+ if (err)
+ return err;
+
+ da->da_synced++;
+ da->da_users++;
+ }
+
+ return 0;
+}
+
+void __kc_dev_addr_unsync_dev(struct dev_addr_list **list, int *count,
+ struct net_device *dev,
+ int (*unsync) (struct net_device *,
+ const unsigned char *))
+{
+ struct dev_addr_list *da;
+
+ while ((da = *list) != NULL) {
+ if (da->da_synced) {
+ if (!unsync || !unsync(dev, da->da_addr)) {
+ da->da_synced--;
+ if (--da->da_users == 0) {
+ *list = da->next;
+ kfree(da);
+ (*count)--;
+ continue;
+ }
+ }
+ }
+ list = &da->next;
+ }
+}
+#endif /* NETDEV_HW_ADDR_T_MULTICAST */
+#endif /* HAVE_SET_RX_MODE */
+void *__kc_devm_kmemdup(struct device *dev, const void *src, size_t len,
+ gfp_t gfp)
+{
+ void *p;
+
+ p = devm_kzalloc(dev, len, gfp);
+ if (p)
+ memcpy(p, src, len);
+
+ return p;
+}
+#endif /* 3.16.0 */
+
+/******************************************************************************/
+#if ((LINUX_VERSION_CODE < KERNEL_VERSION(3,17,0)) && \
+ (RHEL_RELEASE_CODE < RHEL_RELEASE_VERSION(7,5)))
+#endif /* <3.17.0 && RHEL_RELEASE_CODE < RHEL7.5 */
+
+/******************************************************************************/
+#if ( LINUX_VERSION_CODE < KERNEL_VERSION(3,18,0) )
+#ifndef NO_PTP_SUPPORT
+static void __kc_sock_efree(struct sk_buff *skb)
+{
+ sock_put(skb->sk);
+}
+
+struct sk_buff *__kc_skb_clone_sk(struct sk_buff *skb)
+{
+ struct sock *sk = skb->sk;
+ struct sk_buff *clone;
+
+ if (!sk || !atomic_inc_not_zero(&sk->sk_refcnt))
+ return NULL;
+
+ clone = skb_clone(skb, GFP_ATOMIC);
+ if (!clone) {
+ sock_put(sk);
+ return NULL;
+ }
+
+ clone->sk = sk;
+ clone->destructor = __kc_sock_efree;
+
+ return clone;
+}
+
+void __kc_skb_complete_tx_timestamp(struct sk_buff *skb,
+ struct skb_shared_hwtstamps *hwtstamps)
+{
+ struct sock_exterr_skb *serr;
+ struct sock *sk = skb->sk;
+ int err;
+
+ sock_hold(sk);
+
+ *skb_hwtstamps(skb) = *hwtstamps;
+
+ serr = SKB_EXT_ERR(skb);
+ memset(serr, 0, sizeof(*serr));
+ serr->ee.ee_errno = ENOMSG;
+ serr->ee.ee_origin = SO_EE_ORIGIN_TIMESTAMPING;
+
+ err = sock_queue_err_skb(sk, skb);
+ if (err)
+ kfree_skb(skb);
+
+ sock_put(sk);
+}
+#endif
+
+/* include headers needed for get_headlen function */
+#if defined(CONFIG_FCOE) || defined(CONFIG_FCOE_MODULE)
+#include <scsi/fc/fc_fcoe.h>
+#endif
+#ifdef HAVE_SCTP
+#include <linux/sctp.h>
+#endif
+
+u32 __kc_eth_get_headlen(const struct net_device __always_unused *dev,
+ unsigned char *data, unsigned int max_len)
+{
+ union {
+ unsigned char *network;
+ /* l2 headers */
+ struct ethhdr *eth;
+ struct vlan_hdr *vlan;
+ /* l3 headers */
+ struct iphdr *ipv4;
+ struct ipv6hdr *ipv6;
+ } hdr;
+ __be16 proto;
+ u8 nexthdr = 0; /* default to not TCP */
+ u8 hlen;
+
+ /* this should never happen, but better safe than sorry */
+ if (max_len < ETH_HLEN)
+ return max_len;
+
+ /* initialize network frame pointer */
+ hdr.network = data;
+
+ /* set first protocol and move network header forward */
+ proto = hdr.eth->h_proto;
+ hdr.network += ETH_HLEN;
+
+again:
+ switch (proto) {
+ /* handle any vlan tag if present */
+ case __constant_htons(ETH_P_8021AD):
+ case __constant_htons(ETH_P_8021Q):
+ if ((hdr.network - data) > (max_len - VLAN_HLEN))
+ return max_len;
+
+ proto = hdr.vlan->h_vlan_encapsulated_proto;
+ hdr.network += VLAN_HLEN;
+ goto again;
+ /* handle L3 protocols */
+ case __constant_htons(ETH_P_IP):
+ if ((hdr.network - data) > (max_len - sizeof(struct iphdr)))
+ return max_len;
+
+ /* access ihl as a u8 to avoid unaligned access on ia64 */
+ hlen = (hdr.network[0] & 0x0F) << 2;
+
+ /* verify hlen meets minimum size requirements */
+ if (hlen < sizeof(struct iphdr))
+ return hdr.network - data;
+
+ /* record next protocol if header is present */
+ if (!(hdr.ipv4->frag_off & htons(IP_OFFSET)))
+ nexthdr = hdr.ipv4->protocol;
+
+ hdr.network += hlen;
+ break;
+#ifdef NETIF_F_TSO6
+ case __constant_htons(ETH_P_IPV6):
+ if ((hdr.network - data) > (max_len - sizeof(struct ipv6hdr)))
+ return max_len;
+
+ /* record next protocol */
+ nexthdr = hdr.ipv6->nexthdr;
+ hdr.network += sizeof(struct ipv6hdr);
+ break;
+#endif /* NETIF_F_TSO6 */
+#if defined(CONFIG_FCOE) || defined(CONFIG_FCOE_MODULE)
+ case __constant_htons(ETH_P_FCOE):
+ hdr.network += FCOE_HEADER_LEN;
+ break;
+#endif
+ default:
+ return hdr.network - data;
+ }
+
+ /* finally sort out L4 */
+ switch (nexthdr) {
+ case IPPROTO_TCP:
+ if ((hdr.network - data) > (max_len - sizeof(struct tcphdr)))
+ return max_len;
+
+ /* access doff as a u8 to avoid unaligned access on ia64 */
+ hdr.network += max_t(u8, sizeof(struct tcphdr),
+ (hdr.network[12] & 0xF0) >> 2);
+
+ break;
+ case IPPROTO_UDP:
+ case IPPROTO_UDPLITE:
+ hdr.network += sizeof(struct udphdr);
+ break;
+#ifdef HAVE_SCTP
+ case IPPROTO_SCTP:
+ hdr.network += sizeof(struct sctphdr);
+ break;
+#endif
+ }
+
+ /*
+ * If everything has gone correctly hdr.network should be the
+ * data section of the packet and will be the end of the header.
+ * If not then it probably represents the end of the last recognized
+ * header.
+ */
+ return min_t(unsigned int, hdr.network - data, max_len);
+}
+
+#endif /* < 3.18.0 */
+
+/******************************************************************************/
+#if ( LINUX_VERSION_CODE < KERNEL_VERSION(3,19,0) )
+#ifdef HAVE_NET_GET_RANDOM_ONCE
+static u8 __kc_netdev_rss_key[NETDEV_RSS_KEY_LEN];
+
+void __kc_netdev_rss_key_fill(void *buffer, size_t len)
+{
+ BUG_ON(len > sizeof(__kc_netdev_rss_key));
+ net_get_random_once(__kc_netdev_rss_key, sizeof(__kc_netdev_rss_key));
+ memcpy(buffer, __kc_netdev_rss_key, len);
+}
+#endif
+
+int _kc_bitmap_print_to_pagebuf(bool list, char *buf,
+ const unsigned long *maskp, int nmaskbits)
+{
+ ptrdiff_t len = PTR_ALIGN(buf + PAGE_SIZE - 1, PAGE_SIZE) - buf - 2;
+ int n = 0;
+
+ if (len > 1) {
+ n = list ? bitmap_scnlistprintf(buf, len, maskp, nmaskbits) :
+ bitmap_scnprintf(buf, len, maskp, nmaskbits);
+ buf[n++] = '\n';
+ buf[n] = '\0';
+ }
+ return n;
+}
+#endif
+
+/******************************************************************************/
+#if ( LINUX_VERSION_CODE < KERNEL_VERSION(4,1,0) )
+#if !((RHEL_RELEASE_CODE > RHEL_RELEASE_VERSION(6,8) && RHEL_RELEASE_CODE < RHEL_RELEASE_VERSION(7,0)) && \
+ (RHEL_RELEASE_CODE > RHEL_RELEASE_VERSION(7,2)) && \
+ (SLE_VERSION_CODE > SLE_VERSION(12,1,0)))
+unsigned int _kc_cpumask_local_spread(unsigned int i, int node)
+{
+ int cpu;
+
+ /* Wrap: we always want a cpu. */
+ i %= num_online_cpus();
+
+#if ( LINUX_VERSION_CODE < KERNEL_VERSION(2,6,28) )
+ /* Kernels prior to 2.6.28 do not have for_each_cpu or
+ * cpumask_of_node, so just use for_each_online_cpu()
+ */
+ for_each_online_cpu(cpu)
+ if (i-- == 0)
+ return cpu;
+
+ return 0;
+#else
+ if (node == -1) {
+ for_each_cpu(cpu, cpu_online_mask)
+ if (i-- == 0)
+ return cpu;
+ } else {
+ /* NUMA first. */
+ for_each_cpu_and(cpu, cpumask_of_node(node), cpu_online_mask)
+ if (i-- == 0)
+ return cpu;
+
+ for_each_cpu(cpu, cpu_online_mask) {
+ /* Skip NUMA nodes, done above. */
+ if (cpumask_test_cpu(cpu, cpumask_of_node(node)))
+ continue;
+
+ if (i-- == 0)
+ return cpu;
+ }
+ }
+#endif /* KERNEL_VERSION >= 2.6.28 */
+ BUG();
+}
+#endif
+#endif
+
+/******************************************************************************/
+#if (LINUX_VERSION_CODE < KERNEL_VERSION(4,3,0))
+#if (!(RHEL_RELEASE_CODE >= RHEL_RELEASE_VERSION(7,4)) && \
+ !(SLE_VERSION_CODE >= SLE_VERSION(12,2,0)))
+/**
+ * _kc_skb_flow_dissect_flow_keys - parse SKB to fill _kc_flow_keys
+ * @skb: SKB used to fille _kc_flow_keys
+ * @flow: _kc_flow_keys to set with SKB fields
+ * @flags: currently unused flags
+ *
+ * The purpose of using kcompat for this function is so the caller doesn't have
+ * to care about which kernel version they are on, which prevents a larger than
+ * normal #ifdef mess created by using a HAVE_* flag for this case. This is also
+ * done for 4.2 kernels to simplify calling skb_flow_dissect_flow_keys()
+ * because in 4.2 kernels skb_flow_dissect_flow_keys() exists, but only has 2
+ * arguments. Recent kernels have skb_flow_dissect_flow_keys() that has 3
+ * arguments.
+ *
+ * The caller needs to understand that this function was only implemented as a
+ * bare-minimum replacement for recent versions of skb_flow_dissect_flow_keys()
+ * and this function is in no way similar to skb_flow_dissect_flow_keys(). An
+ * example use can be found in the ice driver, specifically ice_arfs.c.
+ *
+ * This function is treated as a whitelist of supported fields the SKB can
+ * parse. If new functionality is added make sure to keep this format (i.e. only
+ * check for fields that are explicity wanted).
+ *
+ * Current whitelist:
+ *
+ * TCPv4, TCPv6, UDPv4, UDPv6
+ *
+ * If any unexpected protocol or other field is found this function memsets the
+ * flow passed in back to 0 and returns false. Otherwise the flow is populated
+ * and returns true.
+ */
+bool
+_kc_skb_flow_dissect_flow_keys(const struct sk_buff *skb,
+ struct _kc_flow_keys *flow,
+ unsigned int __always_unused flags)
+{
+ memset(flow, 0, sizeof(*flow));
+
+ flow->basic.n_proto = skb->protocol;
+ switch (flow->basic.n_proto) {
+ case htons(ETH_P_IP):
+ flow->basic.ip_proto = ip_hdr(skb)->protocol;
+ flow->addrs.v4addrs.src = ip_hdr(skb)->saddr;
+ flow->addrs.v4addrs.dst = ip_hdr(skb)->daddr;
+ break;
+ case htons(ETH_P_IPV6):
+ flow->basic.ip_proto = ipv6_hdr(skb)->nexthdr;
+ memcpy(&flow->addrs.v6addrs.src, &ipv6_hdr(skb)->saddr,
+ sizeof(struct in6_addr));
+ memcpy(&flow->addrs.v6addrs.dst, &ipv6_hdr(skb)->daddr,
+ sizeof(struct in6_addr));
+ break;
+ default:
+ netdev_dbg(skb->dev,
+ "%s: Unsupported/unimplemented layer 3 protocol %04x\n",
+ __func__, htons(flow->basic.n_proto));
+ goto unsupported;
+ }
+
+ switch (flow->basic.ip_proto) {
+ case IPPROTO_TCP:
+ {
+ struct tcphdr *tcph;
+
+ tcph = tcp_hdr(skb);
+ flow->ports.src = tcph->source;
+ flow->ports.dst = tcph->dest;
+ break;
+ }
+ case IPPROTO_UDP:
+ {
+ struct udphdr *udph;
+
+ udph = udp_hdr(skb);
+ flow->ports.src = udph->source;
+ flow->ports.dst = udph->dest;
+ break;
+ }
+ default:
+ netdev_dbg(skb->dev,
+ "%s: Unsupported/unimplemented layer 4 protocol %02x\n",
+ __func__, flow->basic.ip_proto);
+ return false;
+ }
+
+ return true;
+
+unsupported:
+ memset(flow, 0, sizeof(*flow));
+ return false;
+}
+#endif /* ! >= RHEL7.4 && ! >= SLES12.2 */
+#endif /* 4.3.0 */
+
+/******************************************************************************/
+#if ( LINUX_VERSION_CODE < KERNEL_VERSION(4,5,0) )
+#if (!(RHEL_RELEASE_CODE >= RHEL_RELEASE_VERSION(7,3)))
+#ifdef CONFIG_SPARC
+#include <asm/idprom.h>
+#include <asm/prom.h>
+#endif
+int _kc_eth_platform_get_mac_address(struct device *dev __maybe_unused,
+ u8 *mac_addr __maybe_unused)
+{
+#if (((LINUX_VERSION_CODE < KERNEL_VERSION(3,1,0)) && defined(CONFIG_OF) && \
+ !defined(HAVE_STRUCT_DEVICE_OF_NODE) || !defined(CONFIG_OF)) && \
+ !defined(CONFIG_SPARC))
+ return -ENODEV;
+#else
+ const unsigned char *addr;
+ struct device_node *dp;
+
+ if (dev_is_pci(dev))
+ dp = pci_device_to_OF_node(to_pci_dev(dev));
+ else
+#if defined(HAVE_STRUCT_DEVICE_OF_NODE) && defined(CONFIG_OF)
+ dp = dev->of_node;
+#else
+ dp = NULL;
+#endif
+
+ addr = NULL;
+ if (dp)
+ addr = of_get_mac_address(dp);
+#ifdef CONFIG_SPARC
+ /* Kernel hasn't implemented arch_get_platform_mac_address, but we
+ * should handle the SPARC case here since it was supported
+ * originally. This is replaced by arch_get_platform_mac_address()
+ * upstream.
+ */
+ if (!addr)
+ addr = idprom->id_ethaddr;
+#endif
+ if (!addr)
+ return -ENODEV;
+
+ ether_addr_copy(mac_addr, addr);
+ return 0;
+#endif
+}
+#endif /* !(RHEL_RELEASE >= 7.3) */
+#endif /* < 4.5.0 */
+
+/*****************************************************************************/
+#if ((LINUX_VERSION_CODE < KERNEL_VERSION(4,14,0)) || \
+ (SLE_VERSION_CODE && (SLE_VERSION_CODE <= SLE_VERSION(12,3,0))) || \
+ (RHEL_RELEASE_CODE && (RHEL_RELEASE_CODE <= RHEL_RELEASE_VERSION(7,5))))
+const char *_kc_phy_speed_to_str(int speed)
+{
+ switch (speed) {
+ case SPEED_10:
+ return "10Mbps";
+ case SPEED_100:
+ return "100Mbps";
+ case SPEED_1000:
+ return "1Gbps";
+ case SPEED_2500:
+ return "2.5Gbps";
+ case SPEED_5000:
+ return "5Gbps";
+ case SPEED_10000:
+ return "10Gbps";
+ case SPEED_14000:
+ return "14Gbps";
+ case SPEED_20000:
+ return "20Gbps";
+ case SPEED_25000:
+ return "25Gbps";
+ case SPEED_40000:
+ return "40Gbps";
+ case SPEED_50000:
+ return "50Gbps";
+ case SPEED_56000:
+ return "56Gbps";
+#ifdef SPEED_100000
+ case SPEED_100000:
+ return "100Gbps";
+#endif
+ case SPEED_UNKNOWN:
+ return "Unknown";
+ default:
+ return "Unsupported (update phy-core.c)";
+ }
+}
+#endif /* (LINUX < 4.14.0) || (SLES <= 12.3.0) || (RHEL <= 7.5) */
+
+/******************************************************************************/
+#if ( LINUX_VERSION_CODE < KERNEL_VERSION(4,15,0) )
+void _kc_ethtool_intersect_link_masks(struct ethtool_link_ksettings *dst,
+ struct ethtool_link_ksettings *src)
+{
+ unsigned int size = BITS_TO_LONGS(__ETHTOOL_LINK_MODE_MASK_NBITS);
+ unsigned int idx = 0;
+
+ for (; idx < size; idx++) {
+ dst->link_modes.supported[idx] &=
+ src->link_modes.supported[idx];
+ dst->link_modes.advertising[idx] &=
+ src->link_modes.advertising[idx];
+ }
+}
+#endif /* 4.15.0 */
+
+/*****************************************************************************/
+#if (LINUX_VERSION_CODE < KERNEL_VERSION(4,17,0))
+/* PCIe link information */
+#define PCIE_SPEED2STR(speed) \
+ ((speed) == PCIE_SPEED_16_0GT ? "16 GT/s" : \
+ (speed) == PCIE_SPEED_8_0GT ? "8 GT/s" : \
+ (speed) == PCIE_SPEED_5_0GT ? "5 GT/s" : \
+ (speed) == PCIE_SPEED_2_5GT ? "2.5 GT/s" : \
+ "Unknown speed")
+
+/* PCIe speed to Mb/s reduced by encoding overhead */
+#define PCIE_SPEED2MBS_ENC(speed) \
+ ((speed) == PCIE_SPEED_16_0GT ? 16000*128/130 : \
+ (speed) == PCIE_SPEED_8_0GT ? 8000*128/130 : \
+ (speed) == PCIE_SPEED_5_0GT ? 5000*8/10 : \
+ (speed) == PCIE_SPEED_2_5GT ? 2500*8/10 : \
+ 0)
+
+static u32
+_kc_pcie_bandwidth_available(struct pci_dev *dev,
+ struct pci_dev **limiting_dev,
+ enum pci_bus_speed *speed,
+ enum pcie_link_width *width)
+{
+ u16 lnksta;
+ enum pci_bus_speed next_speed;
+ enum pcie_link_width next_width;
+ u32 bw, next_bw;
+
+ if (speed)
+ *speed = PCI_SPEED_UNKNOWN;
+ if (width)
+ *width = PCIE_LNK_WIDTH_UNKNOWN;
+
+ bw = 0;
+
+ while (dev) {
+ pcie_capability_read_word(dev, PCI_EXP_LNKSTA, &lnksta);
+
+ next_speed = pcie_link_speed[lnksta & PCI_EXP_LNKSTA_CLS];
+ next_width = (lnksta & PCI_EXP_LNKSTA_NLW) >>
+ PCI_EXP_LNKSTA_NLW_SHIFT;
+
+ next_bw = next_width * PCIE_SPEED2MBS_ENC(next_speed);
+
+ /* Check if current device limits the total bandwidth */
+ if (!bw || next_bw <= bw) {
+ bw = next_bw;
+
+ if (limiting_dev)
+ *limiting_dev = dev;
+ if (speed)
+ *speed = next_speed;
+ if (width)
+ *width = next_width;
+ }
+
+ dev = pci_upstream_bridge(dev);
+ }
+
+ return bw;
+}
+
+static enum pci_bus_speed _kc_pcie_get_speed_cap(struct pci_dev *dev)
+{
+ u32 lnkcap2, lnkcap;
+
+ /*
+ * PCIe r4.0 sec 7.5.3.18 recommends using the Supported Link
+ * Speeds Vector in Link Capabilities 2 when supported, falling
+ * back to Max Link Speed in Link Capabilities otherwise.
+ */
+ pcie_capability_read_dword(dev, PCI_EXP_LNKCAP2, &lnkcap2);
+ if (lnkcap2) { /* PCIe r3.0-compliant */
+ if (lnkcap2 & PCI_EXP_LNKCAP2_SLS_16_0GB)
+ return PCIE_SPEED_16_0GT;
+ else if (lnkcap2 & PCI_EXP_LNKCAP2_SLS_8_0GB)
+ return PCIE_SPEED_8_0GT;
+ else if (lnkcap2 & PCI_EXP_LNKCAP2_SLS_5_0GB)
+ return PCIE_SPEED_5_0GT;
+ else if (lnkcap2 & PCI_EXP_LNKCAP2_SLS_2_5GB)
+ return PCIE_SPEED_2_5GT;
+ return PCI_SPEED_UNKNOWN;
+ }
+
+ pcie_capability_read_dword(dev, PCI_EXP_LNKCAP, &lnkcap);
+ if (lnkcap) {
+ if (lnkcap & PCI_EXP_LNKCAP_SLS_16_0GB)
+ return PCIE_SPEED_16_0GT;
+ else if (lnkcap & PCI_EXP_LNKCAP_SLS_8_0GB)
+ return PCIE_SPEED_8_0GT;
+ else if (lnkcap & PCI_EXP_LNKCAP_SLS_5_0GB)
+ return PCIE_SPEED_5_0GT;
+ else if (lnkcap & PCI_EXP_LNKCAP_SLS_2_5GB)
+ return PCIE_SPEED_2_5GT;
+ }
+
+ return PCI_SPEED_UNKNOWN;
+}
+
+static enum pcie_link_width _kc_pcie_get_width_cap(struct pci_dev *dev)
+{
+ u32 lnkcap;
+
+ pcie_capability_read_dword(dev, PCI_EXP_LNKCAP, &lnkcap);
+ if (lnkcap)
+ return (lnkcap & PCI_EXP_LNKCAP_MLW) >> 4;
+
+ return PCIE_LNK_WIDTH_UNKNOWN;
+}
+
+static u32
+_kc_pcie_bandwidth_capable(struct pci_dev *dev, enum pci_bus_speed *speed,
+ enum pcie_link_width *width)
+{
+ *speed = _kc_pcie_get_speed_cap(dev);
+ *width = _kc_pcie_get_width_cap(dev);
+
+ if (*speed == PCI_SPEED_UNKNOWN || *width == PCIE_LNK_WIDTH_UNKNOWN)
+ return 0;
+
+ return *width * PCIE_SPEED2MBS_ENC(*speed);
+}
+
+void _kc_pcie_print_link_status(struct pci_dev *dev)
+{
+ enum pcie_link_width width, width_cap;
+ enum pci_bus_speed speed, speed_cap;
+ struct pci_dev *limiting_dev = NULL;
+ u32 bw_avail, bw_cap;
+
+ bw_cap = _kc_pcie_bandwidth_capable(dev, &speed_cap, &width_cap);
+ bw_avail = _kc_pcie_bandwidth_available(dev, &limiting_dev, &speed,
+ &width);
+
+ if (bw_avail >= bw_cap)
+ pci_info(dev,
+ "%u.%03u Gb/s available PCIe bandwidth (%s x%d link)\n",
+ bw_cap / 1000, bw_cap % 1000,
+ PCIE_SPEED2STR(speed_cap), width_cap);
+ else
+ pci_info(dev,
+ "%u.%03u Gb/s available PCIe bandwidth, limited by %s x%d link at %s (capable of %u.%03u Gb/s with %s x%d link)\n",
+ bw_avail / 1000, bw_avail % 1000,
+ PCIE_SPEED2STR(speed), width,
+ limiting_dev ? pci_name(limiting_dev) : "<unknown>",
+ bw_cap / 1000, bw_cap % 1000,
+ PCIE_SPEED2STR(speed_cap), width_cap);
+}
+#endif /* 4.17.0 */
+
+/*****************************************************************************/
+#if (LINUX_VERSION_CODE < KERNEL_VERSION(5,1,0))
+#if (RHEL_RELEASE_CODE && (RHEL_RELEASE_CODE >= RHEL_RELEASE_VERSION(8,1)))
+#define HAVE_NDO_FDB_ADD_EXTACK
+#else /* !RHEL || RHEL < 8.1 */
+#ifdef HAVE_TC_SETUP_CLSFLOWER
+#define FLOW_DISSECTOR_MATCH(__rule, __type, __out) \
+ const struct flow_match *__m = &(__rule)->match; \
+ struct flow_dissector *__d = (__m)->dissector; \
+ \
+ (__out)->key = skb_flow_dissector_target(__d, __type, (__m)->key); \
+ (__out)->mask = skb_flow_dissector_target(__d, __type, (__m)->mask); \
+
+void flow_rule_match_basic(const struct flow_rule *rule,
+ struct flow_match_basic *out)
+{
+ FLOW_DISSECTOR_MATCH(rule, FLOW_DISSECTOR_KEY_BASIC, out);
+}
+
+void flow_rule_match_control(const struct flow_rule *rule,
+ struct flow_match_control *out)
+{
+ FLOW_DISSECTOR_MATCH(rule, FLOW_DISSECTOR_KEY_CONTROL, out);
+}
+
+void flow_rule_match_eth_addrs(const struct flow_rule *rule,
+ struct flow_match_eth_addrs *out)
+{
+ FLOW_DISSECTOR_MATCH(rule, FLOW_DISSECTOR_KEY_ETH_ADDRS, out);
+}
+
+#ifdef HAVE_TC_FLOWER_ENC
+void flow_rule_match_enc_keyid(const struct flow_rule *rule,
+ struct flow_match_enc_keyid *out)
+{
+ FLOW_DISSECTOR_MATCH(rule, FLOW_DISSECTOR_KEY_ENC_KEYID, out);
+}
+
+void flow_rule_match_enc_ports(const struct flow_rule *rule,
+ struct flow_match_ports *out)
+{
+ FLOW_DISSECTOR_MATCH(rule, FLOW_DISSECTOR_KEY_ENC_PORTS, out);
+}
+
+void flow_rule_match_enc_control(const struct flow_rule *rule,
+ struct flow_match_control *out)
+{
+ FLOW_DISSECTOR_MATCH(rule, FLOW_DISSECTOR_KEY_ENC_CONTROL, out);
+}
+
+void flow_rule_match_enc_ipv4_addrs(const struct flow_rule *rule,
+ struct flow_match_ipv4_addrs *out)
+{
+ FLOW_DISSECTOR_MATCH(rule, FLOW_DISSECTOR_KEY_ENC_IPV4_ADDRS, out);
+}
+
+void flow_rule_match_enc_ipv6_addrs(const struct flow_rule *rule,
+ struct flow_match_ipv6_addrs *out)
+{
+ FLOW_DISSECTOR_MATCH(rule, FLOW_DISSECTOR_KEY_ENC_IPV6_ADDRS, out);
+}
+#endif
+
+#ifndef HAVE_TC_FLOWER_VLAN_IN_TAGS
+void flow_rule_match_vlan(const struct flow_rule *rule,
+ struct flow_match_vlan *out)
+{
+ FLOW_DISSECTOR_MATCH(rule, FLOW_DISSECTOR_KEY_VLAN, out);
+}
+#endif
+
+void flow_rule_match_ipv4_addrs(const struct flow_rule *rule,
+ struct flow_match_ipv4_addrs *out)
+{
+ FLOW_DISSECTOR_MATCH(rule, FLOW_DISSECTOR_KEY_IPV4_ADDRS, out);
+}
+
+void flow_rule_match_ipv6_addrs(const struct flow_rule *rule,
+ struct flow_match_ipv6_addrs *out)
+{
+ FLOW_DISSECTOR_MATCH(rule, FLOW_DISSECTOR_KEY_IPV6_ADDRS, out);
+}
+
+void flow_rule_match_ports(const struct flow_rule *rule,
+ struct flow_match_ports *out)
+{
+ FLOW_DISSECTOR_MATCH(rule, FLOW_DISSECTOR_KEY_PORTS, out);
+}
+#endif /* HAVE_TC_SETUP_CLSFLOWER */
+#endif /* !RHEL || RHEL < 8.1 */
+#endif /* 5.1.0 */
+
+/*****************************************************************************/
+#if (LINUX_VERSION_CODE < KERNEL_VERSION(5,3,0))
+#if (!(RHEL_RELEASE_CODE && (RHEL_RELEASE_CODE >= RHEL_RELEASE_VERSION(8,2))))
+#ifdef HAVE_TC_CB_AND_SETUP_QDISC_MQPRIO
+int _kc_flow_block_cb_setup_simple(struct flow_block_offload *f,
+ struct list_head __always_unused
+ *driver_list, tc_setup_cb_t * cb,
+ void *cb_ident, void *cb_priv,
+ bool ingress_only)
+{
+ if (ingress_only &&
+ f->binder_type != TCF_BLOCK_BINDER_TYPE_CLSACT_INGRESS)
+ return -EOPNOTSUPP;
+
+ /* Note: Upstream has driver_block_list, but older kernels do not */
+ switch (f->command) {
+ case TC_BLOCK_BIND:
+#ifdef HAVE_TCF_BLOCK_CB_REGISTER_EXTACK
+ return tcf_block_cb_register(f->block, cb, cb_ident, cb_priv,
+ f->extack);
+#else
+ return tcf_block_cb_register(f->block, cb, cb_ident, cb_priv);
+#endif
+ case TC_BLOCK_UNBIND:
+ tcf_block_cb_unregister(f->block, cb, cb_ident);
+ return 0;
+ default:
+ return -EOPNOTSUPP;
+ }
+}
+#endif /* HAVE_TC_CB_AND_SETUP_QDISC_MQPRIO */
+#endif /* !RHEL >= 8.2 */
+#endif /* 5.3.0 */
+
+/*****************************************************************************/
+#if (LINUX_VERSION_CODE < KERNEL_VERSION(5,7,0))
+u64 _kc_pci_get_dsn(struct pci_dev *dev)
+{
+ u32 dword;
+ u64 dsn;
+ int pos;
+
+ pos = pci_find_ext_capability(dev, PCI_EXT_CAP_ID_DSN);
+ if (!pos)
+ return 0;
+
+ /*
+ * The Device Serial Number is two dwords offset 4 bytes from the
+ * capability position. The specification says that the first dword is
+ * the lower half, and the second dword is the upper half.
+ */
+ pos += 4;
+ pci_read_config_dword(dev, pos, &dword);
+ dsn = (u64)dword;
+ pci_read_config_dword(dev, pos + 4, &dword);
+ dsn |= ((u64)dword) << 32;
+
+ return dsn;
+}
+#endif /* 5.7.0 */
diff --git a/src/kcompat.h b/src/kcompat.h
new file mode 100644
index 0000000..c1edfde
--- /dev/null
+++ b/src/kcompat.h
@@ -0,0 +1,7254 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/* Copyright(c) 1999 - 2020 Intel Corporation. */
+
+#ifndef _KCOMPAT_H_
+#define _KCOMPAT_H_
+
+#ifndef LINUX_VERSION_CODE
+#include <linux/version.h>
+#else
+#define KERNEL_VERSION(a,b,c) (((a) << 16) + ((b) << 8) + (c))
+#endif
+#include <linux/io.h>
+#include <linux/delay.h>
+#include <linux/errno.h>
+#include <linux/etherdevice.h>
+#include <linux/ethtool.h>
+#include <linux/if_vlan.h>
+#include <linux/in.h>
+#include <linux/if_link.h>
+#include <linux/init.h>
+#include <linux/ioport.h>
+#include <linux/ip.h>
+#include <linux/ipv6.h>
+#include <linux/list.h>
+#include <linux/mii.h>
+#include <linux/module.h>
+#include <linux/netdevice.h>
+#include <linux/pci.h>
+#include <linux/sched.h>
+#include <linux/skbuff.h>
+#include <linux/slab.h>
+#include <linux/string.h>
+#include <linux/tcp.h>
+#include <linux/types.h>
+#include <linux/udp.h>
+#include <linux/vmalloc.h>
+
+#ifndef GCC_VERSION
+#define GCC_VERSION (__GNUC__ * 10000 \
+ + __GNUC_MINOR__ * 100 \
+ + __GNUC_PATCHLEVEL__)
+#endif /* GCC_VERSION */
+
+/* Backport macros for controlling GCC diagnostics */
+#if ( LINUX_VERSION_CODE < KERNEL_VERSION(4,18,0) )
+
+/* Compilers before gcc-4.6 do not understand "#pragma GCC diagnostic push" */
+#if GCC_VERSION >= 40600
+#define __diag_str1(s) #s
+#define __diag_str(s) __diag_str1(s)
+#define __diag(s) _Pragma(__diag_str(GCC diagnostic s))
+#else
+#define __diag(s)
+#endif /* GCC_VERSION >= 4.6 */
+#define __diag_push() __diag(push)
+#define __diag_pop() __diag(pop)
+#endif /* LINUX_VERSION < 4.18.0 */
+
+#ifndef NSEC_PER_MSEC
+#define NSEC_PER_MSEC 1000000L
+#endif
+#include <net/ipv6.h>
+/* UTS_RELEASE is in a different header starting in kernel 2.6.18 */
+#ifndef UTS_RELEASE
+/* utsrelease.h changed locations in 2.6.33 */
+#if ( LINUX_VERSION_CODE < KERNEL_VERSION(2,6,33) )
+#include <linux/utsrelease.h>
+#else
+#include <generated/utsrelease.h>
+#endif
+#endif
+
+/* NAPI enable/disable flags here */
+#define NAPI
+#ifdef E1000E_NO_NAPI
+#undef NAPI
+#endif
+
+#define adapter_struct e1000_adapter
+#define CONFIG_E1000E_MSIX
+
+/* and finally set defines so that the code sees the changes */
+#ifdef NAPI
+#ifndef CONFIG_E1000E_NAPI
+#define CONFIG_E1000E_NAPI
+#endif
+#else
+#undef CONFIG_E1000E_NAPI
+#endif /* NAPI */
+
+/* Dynamic LTR and deeper C-State support disable/enable */
+#if defined (E1000E_NO_DYN_LTR)
+#undef DYNAMIC_LTR_SUPPORT
+#else
+#define DYNAMIC_LTR_SUPPORT
+#endif /* E1000E_NO_DYN_LTR */
+
+/* packet split disable/enable */
+#ifdef DISABLE_PACKET_SPLIT
+#endif /* DISABLE_PACKET_SPLIT */
+
+/* MSI compatibility code for all kernels and drivers */
+#ifdef DISABLE_PCI_MSI
+#undef CONFIG_PCI_MSI
+#endif
+#ifndef CONFIG_PCI_MSI
+#if ( LINUX_VERSION_CODE < KERNEL_VERSION(2,6,8) )
+struct msix_entry {
+ u16 vector; /* kernel uses to write allocated vector */
+ u16 entry; /* driver uses to specify entry, OS writes */
+};
+#endif
+#undef pci_enable_msi
+#define pci_enable_msi(a) -ENOTSUPP
+#undef pci_disable_msi
+#define pci_disable_msi(a) do {} while (0)
+#undef pci_enable_msix
+#define pci_enable_msix(a, b, c) -ENOTSUPP
+#undef pci_disable_msix
+#define pci_disable_msix(a) do {} while (0)
+#define msi_remove_pci_irq_vectors(a) do {} while (0)
+#endif /* CONFIG_PCI_MSI */
+#ifdef DISABLE_PM
+#undef CONFIG_PM
+#endif
+
+#ifdef DISABLE_NET_POLL_CONTROLLER
+#undef CONFIG_NET_POLL_CONTROLLER
+#endif
+
+#ifndef PMSG_SUSPEND
+#define PMSG_SUSPEND 3
+#endif
+
+/* generic boolean compatibility */
+#undef TRUE
+#undef FALSE
+#define TRUE true
+#define FALSE false
+#ifdef GCC_VERSION
+#if ( GCC_VERSION < 3000 )
+#define _Bool char
+#endif
+#else
+#define _Bool char
+#endif
+
+#ifndef BIT
+#define BIT(nr) (1UL << (nr))
+#endif
+
+#undef __always_unused
+#define __always_unused __attribute__((__unused__))
+
+#undef __maybe_unused
+#define __maybe_unused __attribute__((__unused__))
+
+/* kernels less than 2.4.14 don't have this */
+#ifndef ETH_P_8021Q
+#define ETH_P_8021Q 0x8100
+#endif
+
+#ifndef module_param
+#define module_param(v,t,p) MODULE_PARM(v, "i");
+#endif
+
+#ifndef DMA_64BIT_MASK
+#define DMA_64BIT_MASK 0xffffffffffffffffULL
+#endif
+
+#ifndef DMA_32BIT_MASK
+#define DMA_32BIT_MASK 0x00000000ffffffffULL
+#endif
+
+#ifndef PCI_CAP_ID_EXP
+#define PCI_CAP_ID_EXP 0x10
+#endif
+
+#ifndef uninitialized_var
+#define uninitialized_var(x) x = x
+#endif
+
+#ifndef PCIE_LINK_STATE_L0S
+#define PCIE_LINK_STATE_L0S 1
+#endif
+#ifndef PCIE_LINK_STATE_L1
+#define PCIE_LINK_STATE_L1 2
+#endif
+
+#ifndef SET_NETDEV_DEV
+#define SET_NETDEV_DEV(net, pdev)
+#endif
+
+#if !defined(HAVE_FREE_NETDEV) && ( LINUX_VERSION_CODE < KERNEL_VERSION(3,1,0) )
+#define free_netdev(x) kfree(x)
+#endif
+
+#ifdef HAVE_POLL_CONTROLLER
+#define CONFIG_NET_POLL_CONTROLLER
+#endif
+
+#ifndef SKB_DATAREF_SHIFT
+/* if we do not have the infrastructure to detect if skb_header is cloned
+ just return false in all cases */
+#define skb_header_cloned(x) 0
+#endif
+
+#ifndef NETIF_F_GSO
+#define gso_size tso_size
+#define gso_segs tso_segs
+#endif
+
+#ifndef NETIF_F_GRO
+#define vlan_gro_receive(_napi, _vlgrp, _vlan, _skb) \
+ vlan_hwaccel_receive_skb(_skb, _vlgrp, _vlan)
+#define napi_gro_receive(_napi, _skb) netif_receive_skb(_skb)
+#endif
+
+#ifndef NETIF_F_SCTP_CSUM
+#define NETIF_F_SCTP_CSUM 0
+#endif
+
+#ifndef NETIF_F_LRO
+#define NETIF_F_LRO BIT(15)
+#endif
+
+#ifndef NETIF_F_NTUPLE
+#define NETIF_F_NTUPLE BIT(27)
+#endif
+
+#ifndef NETIF_F_ALL_FCOE
+#define NETIF_F_ALL_FCOE (NETIF_F_FCOE_CRC | NETIF_F_FCOE_MTU | \
+ NETIF_F_FSO)
+#endif
+
+#ifndef IPPROTO_SCTP
+#define IPPROTO_SCTP 132
+#endif
+
+#ifndef IPPROTO_UDPLITE
+#define IPPROTO_UDPLITE 136
+#endif
+
+#ifndef CHECKSUM_PARTIAL
+#define CHECKSUM_PARTIAL CHECKSUM_HW
+#define CHECKSUM_COMPLETE CHECKSUM_HW
+#endif
+
+#ifndef __read_mostly
+#define __read_mostly
+#endif
+
+#ifndef MII_RESV1
+#define MII_RESV1 0x17 /* Reserved... */
+#endif
+
+#ifndef unlikely
+#define unlikely(_x) _x
+#define likely(_x) _x
+#endif
+
+#ifndef WARN_ON
+#define WARN_ON(x)
+#endif
+
+#ifndef PCI_DEVICE
+#define PCI_DEVICE(vend,dev) \
+ .vendor = (vend), .device = (dev), \
+ .subvendor = PCI_ANY_ID, .subdevice = PCI_ANY_ID
+#endif
+
+#ifndef node_online
+#define node_online(node) ((node) == 0)
+#endif
+
+#ifndef cpu_online
+#define cpu_online(cpuid) test_bit((cpuid), &cpu_online_map)
+#endif
+
+#ifndef _LINUX_RANDOM_H
+#include <linux/random.h>
+#endif
+
+#ifndef BITS_PER_TYPE
+#define BITS_PER_TYPE(type) (sizeof(type) * BITS_PER_BYTE)
+#endif
+
+#ifndef BITS_TO_LONGS
+#define BITS_TO_LONGS(bits) (((bits)+BITS_PER_LONG-1)/BITS_PER_LONG)
+#endif
+
+#ifndef DECLARE_BITMAP
+#define DECLARE_BITMAP(name,bits) long name[BITS_TO_LONGS(bits)]
+#endif
+
+#ifndef VLAN_HLEN
+#define VLAN_HLEN 4
+#endif
+
+#ifndef VLAN_ETH_HLEN
+#define VLAN_ETH_HLEN 18
+#endif
+
+#ifndef VLAN_ETH_FRAME_LEN
+#define VLAN_ETH_FRAME_LEN 1518
+#endif
+
+#ifndef DCA_GET_TAG_TWO_ARGS
+#define dca3_get_tag(a,b) dca_get_tag(b)
+#endif
+
+#ifndef CONFIG_HAVE_EFFICIENT_UNALIGNED_ACCESS
+#if defined(__i386__) || defined(__x86_64__)
+#define CONFIG_HAVE_EFFICIENT_UNALIGNED_ACCESS
+#endif
+#endif
+
+/* taken from 2.6.24 definition in linux/kernel.h */
+#ifndef IS_ALIGNED
+#define IS_ALIGNED(x,a) (((x) % ((typeof(x))(a))) == 0)
+#endif
+
+#ifdef IS_ENABLED
+#undef IS_ENABLED
+#undef __ARG_PLACEHOLDER_1
+#undef config_enabled
+#undef _config_enabled
+#undef __config_enabled
+#undef ___config_enabled
+#endif
+
+#define __ARG_PLACEHOLDER_1 0,
+#define config_enabled(cfg) _config_enabled(cfg)
+#define _config_enabled(value) __config_enabled(__ARG_PLACEHOLDER_##value)
+#define __config_enabled(arg1_or_junk) ___config_enabled(arg1_or_junk 1, 0)
+#define ___config_enabled(__ignored, val, ...) val
+
+#define IS_ENABLED(option) \
+ (config_enabled(option) || config_enabled(option##_MODULE))
+
+#if !defined(NETIF_F_HW_VLAN_TX) && !defined(NETIF_F_HW_VLAN_CTAG_TX)
+struct _kc_vlan_ethhdr {
+ unsigned char h_dest[ETH_ALEN];
+ unsigned char h_source[ETH_ALEN];
+ __be16 h_vlan_proto;
+ __be16 h_vlan_TCI;
+ __be16 h_vlan_encapsulated_proto;
+};
+#define vlan_ethhdr _kc_vlan_ethhdr
+struct _kc_vlan_hdr {
+ __be16 h_vlan_TCI;
+ __be16 h_vlan_encapsulated_proto;
+};
+#define vlan_hdr _kc_vlan_hdr
+#define vlan_tx_tag_present(_skb) 0
+#define vlan_tx_tag_get(_skb) 0
+#endif /* NETIF_F_HW_VLAN_TX && NETIF_F_HW_VLAN_CTAG_TX */
+
+#ifndef VLAN_PRIO_SHIFT
+#define VLAN_PRIO_SHIFT 13
+#endif
+
+#ifndef PCI_EXP_LNKSTA_CLS_2_5GB
+#define PCI_EXP_LNKSTA_CLS_2_5GB 0x0001
+#endif
+
+#ifndef PCI_EXP_LNKSTA_CLS_5_0GB
+#define PCI_EXP_LNKSTA_CLS_5_0GB 0x0002
+#endif
+
+#ifndef PCI_EXP_LNKSTA_CLS_8_0GB
+#define PCI_EXP_LNKSTA_CLS_8_0GB 0x0003
+#endif
+
+#ifndef PCI_EXP_LNKSTA_NLW_X1
+#define PCI_EXP_LNKSTA_NLW_X1 0x0010
+#endif
+
+#ifndef PCI_EXP_LNKSTA_NLW_X2
+#define PCI_EXP_LNKSTA_NLW_X2 0x0020
+#endif
+
+#ifndef PCI_EXP_LNKSTA_NLW_X4
+#define PCI_EXP_LNKSTA_NLW_X4 0x0040
+#endif
+
+#ifndef PCI_EXP_LNKSTA_NLW_X8
+#define PCI_EXP_LNKSTA_NLW_X8 0x0080
+#endif
+
+#ifndef __GFP_COLD
+#define __GFP_COLD 0
+#endif
+
+#ifndef __GFP_COMP
+#define __GFP_COMP 0
+#endif
+
+#ifndef IP_OFFSET
+#define IP_OFFSET 0x1FFF /* "Fragment Offset" part */
+#endif
+
+/*****************************************************************************/
+/* Installations with ethtool version without eeprom, adapter id, or statistics
+ * support */
+
+#ifndef ETH_GSTRING_LEN
+#define ETH_GSTRING_LEN 32
+#endif
+
+#ifndef ETHTOOL_GSTATS
+#define ETHTOOL_GSTATS 0x1d
+#undef ethtool_drvinfo
+#define ethtool_drvinfo k_ethtool_drvinfo
+struct k_ethtool_drvinfo {
+ u32 cmd;
+ char driver[32];
+ char version[32];
+ char fw_version[32];
+ char bus_info[32];
+ char reserved1[32];
+ char reserved2[16];
+ u32 n_stats;
+ u32 testinfo_len;
+ u32 eedump_len;
+ u32 regdump_len;
+};
+
+struct ethtool_stats {
+ u32 cmd;
+ u32 n_stats;
+ u64 data[0];
+};
+#endif /* ETHTOOL_GSTATS */
+
+#ifndef ETHTOOL_PHYS_ID
+#define ETHTOOL_PHYS_ID 0x1c
+#endif /* ETHTOOL_PHYS_ID */
+
+#ifndef ETHTOOL_GSTRINGS
+#define ETHTOOL_GSTRINGS 0x1b
+enum ethtool_stringset {
+ ETH_SS_TEST = 0,
+ ETH_SS_STATS,
+};
+struct ethtool_gstrings {
+ u32 cmd; /* ETHTOOL_GSTRINGS */
+ u32 string_set; /* string set id e.c. ETH_SS_TEST, etc */
+ u32 len; /* number of strings in the string set */
+ u8 data[0];
+};
+#endif /* ETHTOOL_GSTRINGS */
+
+#ifndef ETHTOOL_TEST
+#define ETHTOOL_TEST 0x1a
+enum ethtool_test_flags {
+ ETH_TEST_FL_OFFLINE = BIT(0),
+ ETH_TEST_FL_FAILED = BIT(1),
+};
+struct ethtool_test {
+ u32 cmd;
+ u32 flags;
+ u32 reserved;
+ u32 len;
+ u64 data[0];
+};
+#endif /* ETHTOOL_TEST */
+
+#ifndef ETHTOOL_GEEPROM
+#define ETHTOOL_GEEPROM 0xb
+#undef ETHTOOL_GREGS
+struct ethtool_eeprom {
+ u32 cmd;
+ u32 magic;
+ u32 offset;
+ u32 len;
+ u8 data[0];
+};
+
+struct ethtool_value {
+ u32 cmd;
+ u32 data;
+};
+#endif /* ETHTOOL_GEEPROM */
+
+#ifndef ETHTOOL_GLINK
+#define ETHTOOL_GLINK 0xa
+#endif /* ETHTOOL_GLINK */
+
+#ifndef ETHTOOL_GWOL
+#define ETHTOOL_GWOL 0x5
+#define ETHTOOL_SWOL 0x6
+#define SOPASS_MAX 6
+struct ethtool_wolinfo {
+ u32 cmd;
+ u32 supported;
+ u32 wolopts;
+ u8 sopass[SOPASS_MAX]; /* SecureOn(tm) password */
+};
+#endif /* ETHTOOL_GWOL */
+
+#ifndef ETHTOOL_GREGS
+#define ETHTOOL_GREGS 0x00000004 /* Get NIC registers */
+#define ethtool_regs _kc_ethtool_regs
+/* for passing big chunks of data */
+struct _kc_ethtool_regs {
+ u32 cmd;
+ u32 version; /* driver-specific, indicates different chips/revs */
+ u32 len; /* bytes */
+ u8 data[0];
+};
+#endif /* ETHTOOL_GREGS */
+
+#ifndef ETHTOOL_GMSGLVL
+#define ETHTOOL_GMSGLVL 0x00000007 /* Get driver message level */
+#endif
+#ifndef ETHTOOL_SMSGLVL
+#define ETHTOOL_SMSGLVL 0x00000008 /* Set driver msg level, priv. */
+#endif
+#ifndef ETHTOOL_NWAY_RST
+#define ETHTOOL_NWAY_RST 0x00000009 /* Restart autonegotiation, priv */
+#endif
+#ifndef ETHTOOL_GLINK
+#define ETHTOOL_GLINK 0x0000000a /* Get link status */
+#endif
+#ifndef ETHTOOL_GEEPROM
+#define ETHTOOL_GEEPROM 0x0000000b /* Get EEPROM data */
+#endif
+#ifndef ETHTOOL_SEEPROM
+#define ETHTOOL_SEEPROM 0x0000000c /* Set EEPROM data */
+#endif
+#ifndef ETHTOOL_GCOALESCE
+#define ETHTOOL_GCOALESCE 0x0000000e /* Get coalesce config */
+/* for configuring coalescing parameters of chip */
+#define ethtool_coalesce _kc_ethtool_coalesce
+struct _kc_ethtool_coalesce {
+ u32 cmd; /* ETHTOOL_{G,S}COALESCE */
+
+ /* How many usecs to delay an RX interrupt after
+ * a packet arrives. If 0, only rx_max_coalesced_frames
+ * is used.
+ */
+ u32 rx_coalesce_usecs;
+
+ /* How many packets to delay an RX interrupt after
+ * a packet arrives. If 0, only rx_coalesce_usecs is
+ * used. It is illegal to set both usecs and max frames
+ * to zero as this would cause RX interrupts to never be
+ * generated.
+ */
+ u32 rx_max_coalesced_frames;
+
+ /* Same as above two parameters, except that these values
+ * apply while an IRQ is being serviced by the host. Not
+ * all cards support this feature and the values are ignored
+ * in that case.
+ */
+ u32 rx_coalesce_usecs_irq;
+ u32 rx_max_coalesced_frames_irq;
+
+ /* How many usecs to delay a TX interrupt after
+ * a packet is sent. If 0, only tx_max_coalesced_frames
+ * is used.
+ */
+ u32 tx_coalesce_usecs;
+
+ /* How many packets to delay a TX interrupt after
+ * a packet is sent. If 0, only tx_coalesce_usecs is
+ * used. It is illegal to set both usecs and max frames
+ * to zero as this would cause TX interrupts to never be
+ * generated.
+ */
+ u32 tx_max_coalesced_frames;
+
+ /* Same as above two parameters, except that these values
+ * apply while an IRQ is being serviced by the host. Not
+ * all cards support this feature and the values are ignored
+ * in that case.
+ */
+ u32 tx_coalesce_usecs_irq;
+ u32 tx_max_coalesced_frames_irq;
+
+ /* How many usecs to delay in-memory statistics
+ * block updates. Some drivers do not have an in-memory
+ * statistic block, and in such cases this value is ignored.
+ * This value must not be zero.
+ */
+ u32 stats_block_coalesce_usecs;
+
+ /* Adaptive RX/TX coalescing is an algorithm implemented by
+ * some drivers to improve latency under low packet rates and
+ * improve throughput under high packet rates. Some drivers
+ * only implement one of RX or TX adaptive coalescing. Anything
+ * not implemented by the driver causes these values to be
+ * silently ignored.
+ */
+ u32 use_adaptive_rx_coalesce;
+ u32 use_adaptive_tx_coalesce;
+
+ /* When the packet rate (measured in packets per second)
+ * is below pkt_rate_low, the {rx,tx}_*_low parameters are
+ * used.
+ */
+ u32 pkt_rate_low;
+ u32 rx_coalesce_usecs_low;
+ u32 rx_max_coalesced_frames_low;
+ u32 tx_coalesce_usecs_low;
+ u32 tx_max_coalesced_frames_low;
+
+ /* When the packet rate is below pkt_rate_high but above
+ * pkt_rate_low (both measured in packets per second) the
+ * normal {rx,tx}_* coalescing parameters are used.
+ */
+
+ /* When the packet rate is (measured in packets per second)
+ * is above pkt_rate_high, the {rx,tx}_*_high parameters are
+ * used.
+ */
+ u32 pkt_rate_high;
+ u32 rx_coalesce_usecs_high;
+ u32 rx_max_coalesced_frames_high;
+ u32 tx_coalesce_usecs_high;
+ u32 tx_max_coalesced_frames_high;
+
+ /* How often to do adaptive coalescing packet rate sampling,
+ * measured in seconds. Must not be zero.
+ */
+ u32 rate_sample_interval;
+};
+#endif /* ETHTOOL_GCOALESCE */
+
+#ifndef ETHTOOL_SCOALESCE
+#define ETHTOOL_SCOALESCE 0x0000000f /* Set coalesce config. */
+#endif
+#ifndef ETHTOOL_GRINGPARAM
+#define ETHTOOL_GRINGPARAM 0x00000010 /* Get ring parameters */
+/* for configuring RX/TX ring parameters */
+#define ethtool_ringparam _kc_ethtool_ringparam
+struct _kc_ethtool_ringparam {
+ u32 cmd; /* ETHTOOL_{G,S}RINGPARAM */
+
+ /* Read only attributes. These indicate the maximum number
+ * of pending RX/TX ring entries the driver will allow the
+ * user to set.
+ */
+ u32 rx_max_pending;
+ u32 rx_mini_max_pending;
+ u32 rx_jumbo_max_pending;
+ u32 tx_max_pending;
+
+ /* Values changeable by the user. The valid values are
+ * in the range 1 to the "*_max_pending" counterpart above.
+ */
+ u32 rx_pending;
+ u32 rx_mini_pending;
+ u32 rx_jumbo_pending;
+ u32 tx_pending;
+};
+#endif /* ETHTOOL_GRINGPARAM */
+
+#ifndef ETHTOOL_SRINGPARAM
+#define ETHTOOL_SRINGPARAM 0x00000011 /* Set ring parameters, priv. */
+#endif
+#ifndef ETHTOOL_GPAUSEPARAM
+#define ETHTOOL_GPAUSEPARAM 0x00000012 /* Get pause parameters */
+/* for configuring link flow control parameters */
+#define ethtool_pauseparam _kc_ethtool_pauseparam
+struct _kc_ethtool_pauseparam {
+ u32 cmd; /* ETHTOOL_{G,S}PAUSEPARAM */
+
+ /* If the link is being auto-negotiated (via ethtool_cmd.autoneg
+ * being true) the user may set 'autoneg' here non-zero to have the
+ * pause parameters be auto-negotiated too. In such a case, the
+ * {rx,tx}_pause values below determine what capabilities are
+ * advertised.
+ *
+ * If 'autoneg' is zero or the link is not being auto-negotiated,
+ * then {rx,tx}_pause force the driver to use/not-use pause
+ * flow control.
+ */
+ u32 autoneg;
+ u32 rx_pause;
+ u32 tx_pause;
+};
+#endif /* ETHTOOL_GPAUSEPARAM */
+
+#ifndef ETHTOOL_SPAUSEPARAM
+#define ETHTOOL_SPAUSEPARAM 0x00000013 /* Set pause parameters. */
+#endif
+#ifndef ETHTOOL_GRXCSUM
+#define ETHTOOL_GRXCSUM 0x00000014 /* Get RX hw csum enable (ethtool_value) */
+#endif
+#ifndef ETHTOOL_SRXCSUM
+#define ETHTOOL_SRXCSUM 0x00000015 /* Set RX hw csum enable (ethtool_value) */
+#endif
+#ifndef ETHTOOL_GTXCSUM
+#define ETHTOOL_GTXCSUM 0x00000016 /* Get TX hw csum enable (ethtool_value) */
+#endif
+#ifndef ETHTOOL_STXCSUM
+#define ETHTOOL_STXCSUM 0x00000017 /* Set TX hw csum enable (ethtool_value) */
+#endif
+#ifndef ETHTOOL_GSG
+#define ETHTOOL_GSG 0x00000018 /* Get scatter-gather enable
+ * (ethtool_value) */
+#endif
+#ifndef ETHTOOL_SSG
+#define ETHTOOL_SSG 0x00000019 /* Set scatter-gather enable
+ * (ethtool_value). */
+#endif
+#ifndef ETHTOOL_TEST
+#define ETHTOOL_TEST 0x0000001a /* execute NIC self-test, priv. */
+#endif
+#ifndef ETHTOOL_GSTRINGS
+#define ETHTOOL_GSTRINGS 0x0000001b /* get specified string set */
+#endif
+#ifndef ETHTOOL_PHYS_ID
+#define ETHTOOL_PHYS_ID 0x0000001c /* identify the NIC */
+#endif
+#ifndef ETHTOOL_GSTATS
+#define ETHTOOL_GSTATS 0x0000001d /* get NIC-specific statistics */
+#endif
+#ifndef ETHTOOL_GTSO
+#define ETHTOOL_GTSO 0x0000001e /* Get TSO enable (ethtool_value) */
+#endif
+#ifndef ETHTOOL_STSO
+#define ETHTOOL_STSO 0x0000001f /* Set TSO enable (ethtool_value) */
+#endif
+
+#ifndef ETHTOOL_BUSINFO_LEN
+#define ETHTOOL_BUSINFO_LEN 32
+#endif
+
+#ifndef WAKE_FILTER
+#define WAKE_FILTER BIT(7)
+#endif
+
+#ifndef SPEED_2500
+#define SPEED_2500 2500
+#endif
+#ifndef SPEED_5000
+#define SPEED_5000 5000
+#endif
+#ifndef SPEED_14000
+#define SPEED_14000 14000
+#endif
+#ifndef SPEED_25000
+#define SPEED_25000 25000
+#endif
+#ifndef SPEED_50000
+#define SPEED_50000 50000
+#endif
+#ifndef SPEED_56000
+#define SPEED_56000 56000
+#endif
+#ifndef SPEED_100000
+#endif
+
+#ifndef RHEL_RELEASE_VERSION
+#define RHEL_RELEASE_VERSION(a,b) (((a) << 8) + (b))
+#endif
+#ifndef AX_RELEASE_VERSION
+#define AX_RELEASE_VERSION(a,b) (((a) << 8) + (b))
+#endif
+
+#ifndef AX_RELEASE_CODE
+#define AX_RELEASE_CODE 0
+#endif
+
+#if (AX_RELEASE_CODE && AX_RELEASE_CODE == AX_RELEASE_VERSION(3,0))
+#define RHEL_RELEASE_CODE RHEL_RELEASE_VERSION(5,0)
+#elif (AX_RELEASE_CODE && AX_RELEASE_CODE == AX_RELEASE_VERSION(3,1))
+#define RHEL_RELEASE_CODE RHEL_RELEASE_VERSION(5,1)
+#elif (AX_RELEASE_CODE && AX_RELEASE_CODE == AX_RELEASE_VERSION(3,2))
+#define RHEL_RELEASE_CODE RHEL_RELEASE_VERSION(5,3)
+#endif
+
+#ifndef RHEL_RELEASE_CODE
+/* NOTE: RHEL_RELEASE_* introduced in RHEL4.5 */
+#define RHEL_RELEASE_CODE 0
+#endif
+
+/* RHEL 7 didn't backport the parameter change in
+ * create_singlethread_workqueue.
+ * If/when RH corrects this we will want to tighten up the version check.
+ */
+#if (RHEL_RELEASE_CODE && RHEL_RELEASE_CODE >= RHEL_RELEASE_VERSION(7,0))
+#undef create_singlethread_workqueue
+#define create_singlethread_workqueue(name) \
+ alloc_ordered_workqueue("%s", WQ_MEM_RECLAIM, name)
+#endif
+
+/* Ubuntu Release ABI is the 4th digit of their kernel version. You can find
+ * it in /usr/src/linux/$(uname -r)/include/generated/utsrelease.h for new
+ * enough versions of Ubuntu. Otherwise you can simply see it in the output of
+ * uname as the 4th digit of the kernel. The UTS_UBUNTU_RELEASE_ABI is not in
+ * the linux-source package, but in the linux-headers package. It begins to
+ * appear in later releases of 14.04 and 14.10.
+ *
+ * Ex:
+ * <Ubuntu 14.04.1>
+ * $uname -r
+ * 3.13.0-45-generic
+ * ABI is 45
+ *
+ * <Ubuntu 14.10>
+ * $uname -r
+ * 3.16.0-23-generic
+ * ABI is 23
+ */
+#ifndef UTS_UBUNTU_RELEASE_ABI
+#define UTS_UBUNTU_RELEASE_ABI 0
+#define UBUNTU_VERSION_CODE 0
+#else
+/* Ubuntu does not provide actual release version macro, so we use the kernel
+ * version plus the ABI to generate a unique version code specific to Ubuntu.
+ * In addition, we mask the lower 8 bits of LINUX_VERSION_CODE in order to
+ * ignore differences in sublevel which are not important since we have the
+ * ABI value. Otherwise, it becomes impossible to correlate ABI to version for
+ * ordering checks.
+ */
+#define UBUNTU_VERSION_CODE (((~0xFF & LINUX_VERSION_CODE) << 8) + \
+ UTS_UBUNTU_RELEASE_ABI)
+
+#if UTS_UBUNTU_RELEASE_ABI > 255
+#error UTS_UBUNTU_RELEASE_ABI is too large...
+#endif /* UTS_UBUNTU_RELEASE_ABI > 255 */
+
+#if ( LINUX_VERSION_CODE <= KERNEL_VERSION(3,0,0) )
+/* Our version code scheme does not make sense for non 3.x or newer kernels,
+ * and we have no support in kcompat for this scenario. Thus, treat this as a
+ * non-Ubuntu kernel. Possibly might be better to error here.
+ */
+#define UTS_UBUNTU_RELEASE_ABI 0
+#define UBUNTU_VERSION_CODE 0
+#endif
+
+#endif
+
+/* Note that the 3rd digit is always zero, and will be ignored. This is
+ * because Ubuntu kernels are based on x.y.0-ABI values, and while their linux
+ * version codes are 3 digit, this 3rd digit is superseded by the ABI value.
+ */
+#define UBUNTU_VERSION(a,b,c,d) ((KERNEL_VERSION(a,b,0) << 8) + (d))
+
+/* SuSE version macros are the same as Linux kernel version macro */
+#ifndef SLE_VERSION
+#define SLE_VERSION(a,b,c) KERNEL_VERSION(a,b,c)
+#endif
+#define SLE_LOCALVERSION(a,b,c) KERNEL_VERSION(a,b,c)
+#ifdef CONFIG_SUSE_KERNEL
+#if ( LINUX_VERSION_CODE == KERNEL_VERSION(2,6,27) )
+/* SLES11 GA is 2.6.27 based */
+#define SLE_VERSION_CODE SLE_VERSION(11,0,0)
+#elif ( LINUX_VERSION_CODE == KERNEL_VERSION(2,6,32) )
+/* SLES11 SP1 is 2.6.32 based */
+#define SLE_VERSION_CODE SLE_VERSION(11,1,0)
+#elif ( LINUX_VERSION_CODE == KERNEL_VERSION(3,0,13) )
+/* SLES11 SP2 GA is 3.0.13-0.27 */
+#define SLE_VERSION_CODE SLE_VERSION(11,2,0)
+#elif ((LINUX_VERSION_CODE == KERNEL_VERSION(3,0,76)))
+/* SLES11 SP3 GA is 3.0.76-0.11 */
+#define SLE_VERSION_CODE SLE_VERSION(11,3,0)
+#elif (LINUX_VERSION_CODE == KERNEL_VERSION(3,0,101))
+#if (SLE_LOCALVERSION_CODE < SLE_LOCALVERSION(0,8,0))
+ /* some SLES11sp2 update kernels up to 3.0.101-0.7.x */
+#define SLE_VERSION_CODE SLE_VERSION(11,2,0)
+#elif (SLE_LOCALVERSION_CODE < SLE_LOCALVERSION(63,0,0))
+ /* most SLES11sp3 update kernels */
+#define SLE_VERSION_CODE SLE_VERSION(11,3,0)
+#else
+ /* SLES11 SP4 GA (3.0.101-63) and update kernels 3.0.101-63+ */
+#define SLE_VERSION_CODE SLE_VERSION(11,4,0)
+#endif
+#elif (LINUX_VERSION_CODE == KERNEL_VERSION(3,12,28))
+/* SLES12 GA is 3.12.28-4
+ * kernel updates 3.12.xx-<33 through 52>[.yy] */
+#define SLE_VERSION_CODE SLE_VERSION(12,0,0)
+#elif (LINUX_VERSION_CODE == KERNEL_VERSION(3,12,49))
+/* SLES12 SP1 GA is 3.12.49-11
+ * updates 3.12.xx-60.yy where xx={51..} */
+#define SLE_VERSION_CODE SLE_VERSION(12,1,0)
+#elif ((LINUX_VERSION_CODE >= KERNEL_VERSION(4,4,21) && \
+ (LINUX_VERSION_CODE <= KERNEL_VERSION(4,4,59))) || \
+ (LINUX_VERSION_CODE >= KERNEL_VERSION(4,4,74) && \
+ LINUX_VERSION_CODE < KERNEL_VERSION(4,5,0) && \
+ SLE_LOCALVERSION_CODE >= KERNEL_VERSION(92,0,0) && \
+ SLE_LOCALVERSION_CODE < KERNEL_VERSION(93,0,0)))
+/* SLES12 SP2 GA is 4.4.21-69.
+ * SLES12 SP2 updates before SLES12 SP3 are: 4.4.{21,38,49,59}
+ * SLES12 SP2 updates after SLES12 SP3 are: 4.4.{74,90,103,114,120}
+ * but they all use a SLE_LOCALVERSION_CODE matching 92.nn.y */
+#define SLE_VERSION_CODE SLE_VERSION(12,2,0)
+#elif ((LINUX_VERSION_CODE == KERNEL_VERSION(4,4,73) || \
+ LINUX_VERSION_CODE == KERNEL_VERSION(4,4,82) || \
+ LINUX_VERSION_CODE == KERNEL_VERSION(4,4,92)) || \
+ (LINUX_VERSION_CODE == KERNEL_VERSION(4,4,103) && \
+ (SLE_LOCALVERSION_CODE == KERNEL_VERSION(6,33,0) || \
+ SLE_LOCALVERSION_CODE == KERNEL_VERSION(6,38,0))) || \
+ (LINUX_VERSION_CODE >= KERNEL_VERSION(4,4,114) && \
+ LINUX_VERSION_CODE < KERNEL_VERSION(4,5,0) && \
+ SLE_LOCALVERSION_CODE >= KERNEL_VERSION(94,0,0) && \
+ SLE_LOCALVERSION_CODE < KERNEL_VERSION(95,0,0)) )
+/* SLES12 SP3 GM is 4.4.73-5 and update kernels are 4.4.82-6.3.
+ * SLES12 SP3 updates not conflicting with SP2 are: 4.4.{82,92}
+ * SLES12 SP3 updates conflicting with SP2 are:
+ * - 4.4.103-6.33.1, 4.4.103-6.38.1
+ * - 4.4.{114,120}-94.nn.y */
+#define SLE_VERSION_CODE SLE_VERSION(12,3,0)
+#elif (LINUX_VERSION_CODE == KERNEL_VERSION(4,12,14) && \
+ (SLE_LOCALVERSION_CODE == KERNEL_VERSION(94,41,0) || \
+ (SLE_LOCALVERSION_CODE >= KERNEL_VERSION(95,0,0) && \
+ SLE_LOCALVERSION_CODE < KERNEL_VERSION(96,0,0))))
+/* SLES12 SP4 GM is 4.12.14-94.41 and update kernel is 4.12.14-95.x. */
+#define SLE_VERSION_CODE SLE_VERSION(12,4,0)
+#elif (LINUX_VERSION_CODE == KERNEL_VERSION(4,12,14) && \
+ (SLE_LOCALVERSION_CODE == KERNEL_VERSION(23,0,0) || \
+ SLE_LOCALVERSION_CODE == KERNEL_VERSION(2,0,0) || \
+ SLE_LOCALVERSION_CODE == KERNEL_VERSION(136,0,0) || \
+ (SLE_LOCALVERSION_CODE >= KERNEL_VERSION(25,0,0) && \
+ SLE_LOCALVERSION_CODE < KERNEL_VERSION(26,0,0)) || \
+ (SLE_LOCALVERSION_CODE >= KERNEL_VERSION(150,0,0) && \
+ SLE_LOCALVERSION_CODE < KERNEL_VERSION(151,0,0))))
+/* SLES15 Beta1 is 4.12.14-2
+ * SLES15 GM is 4.12.14-23 and update kernel is 4.12.14-{25,136},
+ * and 4.12.14-150.14.
+ */
+#define SLE_VERSION_CODE SLE_VERSION(15,0,0)
+#elif (LINUX_VERSION_CODE == KERNEL_VERSION(4,12,14) && \
+ SLE_LOCALVERSION_CODE >= KERNEL_VERSION(25,23,0))
+/* SLES15 SP1 Beta1 is 4.12.14-25.23 */
+#define SLE_VERSION_CODE SLE_VERSION(15,1,0)
+#elif (LINUX_VERSION_CODE >= KERNEL_VERSION(5,3,13))
+/* SLES15 SP2 Beta1 is 5.3.13 */
+#define SLE_VERSION_CODE SLE_VERSION(15,2,0)
+
+/* new SLES kernels must be added here with >= based on kernel
+ * the idea is to order from newest to oldest and just catch all
+ * of them using the >=
+ */
+#endif /* LINUX_VERSION_CODE == KERNEL_VERSION(x,y,z) */
+#endif /* CONFIG_SUSE_KERNEL */
+#ifndef SLE_VERSION_CODE
+#define SLE_VERSION_CODE 0
+#endif /* SLE_VERSION_CODE */
+#ifndef SLE_LOCALVERSION_CODE
+#define SLE_LOCALVERSION_CODE 0
+#endif /* SLE_LOCALVERSION_CODE */
+
+/*
+ * ADQ depends on __TC_MQPRIO_MODE_MAX and related kernel code
+ * added around 4.15. Some distributions (e.g. Oracle Linux 7.7)
+ * have done a partial back-port of that to their kernels based
+ * on older mainline kernels that did not include all the necessary
+ * kernel enablement to support ADQ.
+ * Undefine __TC_MQPRIO_MODE_MAX for all OSV distributions with
+ * kernels based on mainline kernels older than 4.15 except for
+ * RHEL, SLES and Ubuntu which are known to have good back-ports.
+ */
+#if (!RHEL_RELEASE_CODE && !SLE_VERSION_CODE && !UBUNTU_VERSION_CODE)
+#if (LINUX_VERSION_CODE < KERNEL_VERSION(4,15,0))
+#undef __TC_MQPRIO_MODE_MAX
+#endif /* LINUX_VERSION_CODE == KERNEL_VERSION(4,15,0) */
+#endif /* if (NOT RHEL && NOT SLES && NOT UBUNTU) */
+
+#ifdef __KLOCWORK__
+/* The following are not compiled into the binary driver; they are here
+ * only to tune Klocwork scans to workaround false-positive issues.
+ */
+#ifdef ARRAY_SIZE
+#undef ARRAY_SIZE
+#define ARRAY_SIZE(x) (sizeof(x) / sizeof((x)[0]))
+#endif
+
+#define memcpy(dest, src, len) memcpy_s(dest, len, src, len)
+#define memset(dest, ch, len) memset_s(dest, len, ch, len)
+
+static inline int _kc_test_and_clear_bit(int nr, volatile unsigned long *addr)
+{
+ unsigned long mask = BIT_MASK(nr);
+ unsigned long *p = ((unsigned long *)addr) + BIT_WORD(nr);
+ unsigned long old;
+ unsigned long flags = 0;
+
+ _atomic_spin_lock_irqsave(p, flags);
+ old = *p;
+ *p = old & ~mask;
+ _atomic_spin_unlock_irqrestore(p, flags);
+
+ return (old & mask) != 0;
+}
+
+#define test_and_clear_bit(nr, addr) _kc_test_and_clear_bit(nr, addr)
+
+static inline int _kc_test_and_set_bit(int nr, volatile unsigned long *addr)
+{
+ unsigned long mask = BIT_MASK(nr);
+ unsigned long *p = ((unsigned long *)addr) + BIT_WORD(nr);
+ unsigned long old;
+ unsigned long flags = 0;
+
+ _atomic_spin_lock_irqsave(p, flags);
+ old = *p;
+ *p = old | mask;
+ _atomic_spin_unlock_irqrestore(p, flags);
+
+ return (old & mask) != 0;
+}
+
+#define test_and_set_bit(nr, addr) _kc_test_and_set_bit(nr, addr)
+
+#ifdef CONFIG_DYNAMIC_DEBUG
+#undef dev_dbg
+#define dev_dbg(dev, format, arg...) dev_printk(KERN_DEBUG, dev, format, ##arg)
+#undef pr_debug
+#define pr_debug(format, arg...) printk(KERN_DEBUG format, ##arg)
+#endif /* CONFIG_DYNAMIC_DEBUG */
+
+#undef hlist_for_each_entry_safe
+#define hlist_for_each_entry_safe(pos, n, head, member) \
+ for (n = NULL, pos = hlist_entry_safe((head)->first, typeof(*(pos)), \
+ member); \
+ pos; \
+ pos = hlist_entry_safe((pos)->member.next, typeof(*(pos)), member))
+
+#ifdef uninitialized_var
+#undef uninitialized_var
+#define uninitialized_var(x) x = *(&(x))
+#endif
+#endif /* __KLOCWORK__ */
+
+/* Older versions of GCC will trigger -Wformat-nonliteral warnings for const
+ * char * strings. Unfortunately, the implementation of do_trace_printk does
+ * this, in order to add a storage attribute to the memory. This was fixed in
+ * GCC 5.1, but we still use older distributions built with GCC 4.x.
+ *
+ * The string pointer is only passed as a const char * to the __trace_bprintk
+ * function. Since that function has the __printf attribute, it will trigger
+ * the warnings. We can't remove the attribute, so instead we'll use the
+ * __diag macro to disable -Wformat-nonliteral around the call to
+ * __trace_bprintk.
+ */
+#if GCC_VERSION < 50100
+#define __trace_bprintk(ip, fmt, args...) ({ \
+ int err; \
+ __diag_push(); \
+ __diag(ignored "-Wformat-nonliteral"); \
+ err = __trace_bprintk(ip, fmt, ##args); \
+ __diag_pop(); \
+ err; \
+})
+#endif /* GCC_VERSION < 5.1.0 */
+
+/* Newer kernels removed <linux/pci-aspm.h> */
+#if ( LINUX_VERSION_CODE < KERNEL_VERSION(5,4,0) )
+#define HAVE_PCI_ASPM_H
+#endif
+
+/*****************************************************************************/
+/* 2.4.3 => 2.4.0 */
+#if ( LINUX_VERSION_CODE < KERNEL_VERSION(2,4,3) )
+
+/**************************************/
+/* PCI DRIVER API */
+
+#ifndef pci_set_dma_mask
+#define pci_set_dma_mask _kc_pci_set_dma_mask
+int _kc_pci_set_dma_mask(struct pci_dev *dev, dma_addr_t mask);
+#endif
+
+#ifndef pci_request_regions
+#define pci_request_regions _kc_pci_request_regions
+int _kc_pci_request_regions(struct pci_dev *pdev, char *res_name);
+#endif
+
+#ifndef pci_release_regions
+#define pci_release_regions _kc_pci_release_regions
+void _kc_pci_release_regions(struct pci_dev *pdev);
+#endif
+
+/**************************************/
+/* NETWORK DRIVER API */
+
+#ifndef alloc_etherdev
+#define alloc_etherdev _kc_alloc_etherdev
+struct net_device *_kc_alloc_etherdev(int sizeof_priv);
+#endif
+
+#ifndef is_valid_ether_addr
+#define is_valid_ether_addr _kc_is_valid_ether_addr
+int _kc_is_valid_ether_addr(u8 *addr);
+#endif
+
+/**************************************/
+/* MISCELLANEOUS */
+
+#ifndef INIT_TQUEUE
+#define INIT_TQUEUE(_tq, _routine, _data) \
+ do { \
+ INIT_LIST_HEAD(&(_tq)->list); \
+ (_tq)->sync = 0; \
+ (_tq)->routine = _routine; \
+ (_tq)->data = _data; \
+ } while (0)
+#endif
+
+#endif /* 2.4.3 => 2.4.0 */
+
+/*****************************************************************************/
+#if ( LINUX_VERSION_CODE < KERNEL_VERSION(2,4,5) )
+/* Generic MII registers. */
+#define MII_BMCR 0x00 /* Basic mode control register */
+#define MII_BMSR 0x01 /* Basic mode status register */
+#define MII_PHYSID1 0x02 /* PHYS ID 1 */
+#define MII_PHYSID2 0x03 /* PHYS ID 2 */
+#define MII_ADVERTISE 0x04 /* Advertisement control reg */
+#define MII_LPA 0x05 /* Link partner ability reg */
+#define MII_EXPANSION 0x06 /* Expansion register */
+/* Basic mode control register. */
+#define BMCR_FULLDPLX 0x0100 /* Full duplex */
+#define BMCR_ANENABLE 0x1000 /* Enable auto negotiation */
+/* Basic mode status register. */
+#define BMSR_ERCAP 0x0001 /* Ext-reg capability */
+#define BMSR_ANEGCAPABLE 0x0008 /* Able to do auto-negotiation */
+#define BMSR_10HALF 0x0800 /* Can do 10mbps, half-duplex */
+#define BMSR_10FULL 0x1000 /* Can do 10mbps, full-duplex */
+#define BMSR_100HALF 0x2000 /* Can do 100mbps, half-duplex */
+#define BMSR_100FULL 0x4000 /* Can do 100mbps, full-duplex */
+/* Advertisement control register. */
+#define ADVERTISE_CSMA 0x0001 /* Only selector supported */
+#define ADVERTISE_10HALF 0x0020 /* Try for 10mbps half-duplex */
+#define ADVERTISE_10FULL 0x0040 /* Try for 10mbps full-duplex */
+#define ADVERTISE_100HALF 0x0080 /* Try for 100mbps half-duplex */
+#define ADVERTISE_100FULL 0x0100 /* Try for 100mbps full-duplex */
+#define ADVERTISE_ALL (ADVERTISE_10HALF | ADVERTISE_10FULL | \
+ ADVERTISE_100HALF | ADVERTISE_100FULL)
+/* Expansion register for auto-negotiation. */
+#define EXPANSION_ENABLENPAGE 0x0004 /* This enables npage words */
+#endif
+
+/*****************************************************************************/
+/* 2.4.6 => 2.4.3 */
+#if ( LINUX_VERSION_CODE < KERNEL_VERSION(2,4,6) )
+
+#ifndef pci_set_power_state
+#define pci_set_power_state _kc_pci_set_power_state
+int _kc_pci_set_power_state(struct pci_dev *dev, int state);
+#endif
+
+#ifndef pci_enable_wake
+#define pci_enable_wake _kc_pci_enable_wake
+int _kc_pci_enable_wake(struct pci_dev *pdev, u32 state, int enable);
+#endif
+
+#ifndef pci_disable_device
+#define pci_disable_device _kc_pci_disable_device
+void _kc_pci_disable_device(struct pci_dev *pdev);
+#endif
+
+/* PCI PM entry point syntax changed, so don't support suspend/resume */
+#undef CONFIG_PM
+
+#endif /* 2.4.6 => 2.4.3 */
+
+#ifndef HAVE_PCI_SET_MWI
+#define pci_set_mwi(X) pci_write_config_word(X, \
+ PCI_COMMAND_INVALIDATE);
+#define pci_clear_mwi(X) pci_write_config_word(X, \
+ ~PCI_COMMAND_INVALIDATE);
+#endif
+
+/*****************************************************************************/
+/* 2.4.10 => 2.4.9 */
+#if ( LINUX_VERSION_CODE < KERNEL_VERSION(2,4,10) )
+
+/**************************************/
+/* MODULE API */
+
+#ifndef MODULE_LICENSE
+#define MODULE_LICENSE(X)
+#endif
+
+/**************************************/
+/* OTHER */
+
+#undef min
+#define min(x,y) ({ \
+ const typeof(x) _x = (x); \
+ const typeof(y) _y = (y); \
+ (void) (&_x == &_y); \
+ _x < _y ? _x : _y; })
+
+#undef max
+#define max(x,y) ({ \
+ const typeof(x) _x = (x); \
+ const typeof(y) _y = (y); \
+ (void) (&_x == &_y); \
+ _x > _y ? _x : _y; })
+
+#define min_t(type,x,y) ({ \
+ type _x = (x); \
+ type _y = (y); \
+ _x < _y ? _x : _y; })
+
+#define max_t(type,x,y) ({ \
+ type _x = (x); \
+ type _y = (y); \
+ _x > _y ? _x : _y; })
+
+#ifndef list_for_each_safe
+#define list_for_each_safe(pos, n, head) \
+ for (pos = (head)->next, n = pos->next; pos != (head); \
+ pos = n, n = pos->next)
+#endif
+
+#ifndef ____cacheline_aligned_in_smp
+#ifdef CONFIG_SMP
+#define ____cacheline_aligned_in_smp ____cacheline_aligned
+#else
+#define ____cacheline_aligned_in_smp
+#endif /* CONFIG_SMP */
+#endif
+
+#if ( LINUX_VERSION_CODE < KERNEL_VERSION(2,4,8) )
+int _kc_snprintf(char *buf, size_t size, const char *fmt, ...);
+#define snprintf(buf, size, fmt, args...) _kc_snprintf(buf, size, fmt, ##args)
+int _kc_vsnprintf(char *buf, size_t size, const char *fmt, va_list args);
+#define vsnprintf(buf, size, fmt, args) _kc_vsnprintf(buf, size, fmt, args)
+#else /* 2.4.8 => 2.4.9 */
+int snprintf(char *buf, size_t size, const char *fmt, ...);
+int vsnprintf(char *buf, size_t size, const char *fmt, va_list args);
+#endif
+#endif /* 2.4.10 -> 2.4.6 */
+
+/*****************************************************************************/
+/* 2.4.12 => 2.4.10 */
+#if ( LINUX_VERSION_CODE < KERNEL_VERSION(2,4,12) )
+#ifndef HAVE_NETIF_MSG
+#define HAVE_NETIF_MSG 1
+enum {
+ NETIF_MSG_DRV = 0x0001,
+ NETIF_MSG_PROBE = 0x0002,
+ NETIF_MSG_LINK = 0x0004,
+ NETIF_MSG_TIMER = 0x0008,
+ NETIF_MSG_IFDOWN = 0x0010,
+ NETIF_MSG_IFUP = 0x0020,
+ NETIF_MSG_RX_ERR = 0x0040,
+ NETIF_MSG_TX_ERR = 0x0080,
+ NETIF_MSG_TX_QUEUED = 0x0100,
+ NETIF_MSG_INTR = 0x0200,
+ NETIF_MSG_TX_DONE = 0x0400,
+ NETIF_MSG_RX_STATUS = 0x0800,
+ NETIF_MSG_PKTDATA = 0x1000,
+ NETIF_MSG_HW = 0x2000,
+ NETIF_MSG_WOL = 0x4000,
+};
+
+#define netif_msg_drv(p) ((p)->msg_enable & NETIF_MSG_DRV)
+#define netif_msg_probe(p) ((p)->msg_enable & NETIF_MSG_PROBE)
+#define netif_msg_link(p) ((p)->msg_enable & NETIF_MSG_LINK)
+#define netif_msg_timer(p) ((p)->msg_enable & NETIF_MSG_TIMER)
+#define netif_msg_ifdown(p) ((p)->msg_enable & NETIF_MSG_IFDOWN)
+#define netif_msg_ifup(p) ((p)->msg_enable & NETIF_MSG_IFUP)
+#define netif_msg_rx_err(p) ((p)->msg_enable & NETIF_MSG_RX_ERR)
+#define netif_msg_tx_err(p) ((p)->msg_enable & NETIF_MSG_TX_ERR)
+#define netif_msg_tx_queued(p) ((p)->msg_enable & NETIF_MSG_TX_QUEUED)
+#define netif_msg_intr(p) ((p)->msg_enable & NETIF_MSG_INTR)
+#define netif_msg_tx_done(p) ((p)->msg_enable & NETIF_MSG_TX_DONE)
+#define netif_msg_rx_status(p) ((p)->msg_enable & NETIF_MSG_RX_STATUS)
+#define netif_msg_pktdata(p) ((p)->msg_enable & NETIF_MSG_PKTDATA)
+#endif /* !HAVE_NETIF_MSG */
+#endif /* 2.4.12 => 2.4.10 */
+
+/*****************************************************************************/
+/* 2.4.13 => 2.4.12 */
+#if ( LINUX_VERSION_CODE < KERNEL_VERSION(2,4,13) )
+
+/**************************************/
+/* PCI DMA MAPPING */
+
+#ifndef virt_to_page
+#define virt_to_page(v) (mem_map + (virt_to_phys(v) >> PAGE_SHIFT))
+#endif
+
+#ifndef pci_map_page
+#define pci_map_page _kc_pci_map_page
+u64 _kc_pci_map_page(struct pci_dev *dev, struct page *page,
+ unsigned long offset, size_t size, int direction);
+#endif
+
+#ifndef pci_unmap_page
+#define pci_unmap_page _kc_pci_unmap_page
+void _kc_pci_unmap_page(struct pci_dev *dev, u64 dma_addr, size_t size,
+ int direction);
+#endif
+
+/* pci_set_dma_mask takes dma_addr_t, which is only 32-bits prior to 2.4.13 */
+
+#undef DMA_32BIT_MASK
+#define DMA_32BIT_MASK 0xffffffff
+#undef DMA_64BIT_MASK
+#define DMA_64BIT_MASK 0xffffffff
+
+/**************************************/
+/* OTHER */
+
+#ifndef cpu_relax
+#define cpu_relax() rep_nop()
+#endif
+
+struct vlan_ethhdr {
+ unsigned char h_dest[ETH_ALEN];
+ unsigned char h_source[ETH_ALEN];
+ unsigned short h_vlan_proto;
+ unsigned short h_vlan_TCI;
+ unsigned short h_vlan_encapsulated_proto;
+};
+#endif /* 2.4.13 => 2.4.12 */
+
+/*****************************************************************************/
+/* 2.4.17 => 2.4.12 */
+#if ( LINUX_VERSION_CODE < KERNEL_VERSION(2,4,17) )
+
+#ifndef __devexit_p
+#define __devexit_p(x) &(x)
+#endif
+
+#endif /* 2.4.17 => 2.4.13 */
+
+/*****************************************************************************/
+#if ( LINUX_VERSION_CODE < KERNEL_VERSION(2,4,18) )
+#define NETIF_MSG_HW 0x2000
+#define NETIF_MSG_WOL 0x4000
+
+#ifndef netif_msg_hw
+#define netif_msg_hw(p) ((p)->msg_enable & NETIF_MSG_HW)
+#endif
+#ifndef netif_msg_wol
+#define netif_msg_wol(p) ((p)->msg_enable & NETIF_MSG_WOL)
+#endif
+#endif /* 2.4.18 */
+
+/*****************************************************************************/
+#if ( LINUX_VERSION_CODE < KERNEL_VERSION(2,4,19) ) || \
+ (( LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,0) ) && !defined(CONFIG_CRC32))
+#undef ether_crc_le
+#define ether_crc_le(length, data) _kc_ether_crc_le(length, data)
+static inline unsigned _kc_ether_crc_le(int length, unsigned char *data)
+{
+ unsigned int crc = 0xffffffff; /* Initial value. */
+ while (--length >= 0) {
+ unsigned char current_octet = *data++;
+ int bit;
+ for (bit = 8; --bit >= 0; current_octet >>= 1) {
+ if ((crc ^ current_octet) & 1) {
+ crc >>= 1;
+ crc ^= 0xedb88320U;
+ } else
+ crc >>= 1;
+ }
+ }
+ return crc;
+}
+#else /* < 2.4.19 || (>=2.6.0 && !defined(CONFIG_CRC32)) */
+#include <linux/crc32.h>
+#endif /* < 2.4.19 || (>=2.6.0 && !defined(CONFIG_CRC32)) */
+
+/*****************************************************************************/
+/* 2.4.20 => 2.4.19 */
+#if ( LINUX_VERSION_CODE < KERNEL_VERSION(2,4,20) )
+
+/* we won't support NAPI on less than 2.4.20 */
+#ifdef NAPI
+#undef NAPI
+#undef CONFIG_E1000E_NAPI
+#endif
+
+#endif /* 2.4.20 => 2.4.19 */
+
+/*****************************************************************************/
+/* 2.4.22 => 2.4.17 */
+#if ( LINUX_VERSION_CODE < KERNEL_VERSION(2,4,22) )
+#define pci_name(x) ((x)->slot_name)
+
+#ifndef SUPPORTED_10000baseT_Full
+#define SUPPORTED_10000baseT_Full BIT(12)
+#endif
+#ifndef ADVERTISED_10000baseT_Full
+#define ADVERTISED_10000baseT_Full BIT(12)
+#endif
+#endif
+
+/*****************************************************************************/
+/*****************************************************************************/
+/* 2.4.23 => 2.4.22 */
+#if ( LINUX_VERSION_CODE < KERNEL_VERSION(2,4,23) )
+/*****************************************************************************/
+#ifdef NAPI
+#ifndef netif_poll_disable
+#define netif_poll_disable(x) _kc_netif_poll_disable(x)
+static inline void _kc_netif_poll_disable(struct net_device *netdev)
+{
+ while (test_and_set_bit(__LINK_STATE_RX_SCHED, &netdev->state)) {
+ /* No hurry */
+ current->state = TASK_INTERRUPTIBLE;
+ schedule_timeout(1);
+ }
+}
+#endif
+#ifndef netif_poll_enable
+#define netif_poll_enable(x) _kc_netif_poll_enable(x)
+static inline void _kc_netif_poll_enable(struct net_device *netdev)
+{
+ clear_bit(__LINK_STATE_RX_SCHED, &netdev->state);
+}
+#endif
+#endif /* NAPI */
+#ifndef netif_tx_disable
+#define netif_tx_disable(x) _kc_netif_tx_disable(x)
+static inline void _kc_netif_tx_disable(struct net_device *dev)
+{
+ spin_lock_bh(&dev->xmit_lock);
+ netif_stop_queue(dev);
+ spin_unlock_bh(&dev->xmit_lock);
+}
+#endif
+#else /* 2.4.23 => 2.4.22 */
+#define HAVE_SCTP
+#endif /* 2.4.23 => 2.4.22 */
+
+/*****************************************************************************/
+/* 2.6.4 => 2.6.0 */
+#if ( LINUX_VERSION_CODE < KERNEL_VERSION(2,4,25) || \
+ ( LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,0) && \
+ LINUX_VERSION_CODE < KERNEL_VERSION(2,6,4) ) )
+#define ETHTOOL_OPS_COMPAT
+#endif /* 2.6.4 => 2.6.0 */
+
+/*****************************************************************************/
+#if ( LINUX_VERSION_CODE < KERNEL_VERSION(2,4,27) )
+#define __user
+#endif /* < 2.4.27 */
+
+/*****************************************************************************/
+/* 2.5.71 => 2.4.x */
+#if ( LINUX_VERSION_CODE < KERNEL_VERSION(2,5,71) )
+#define sk_protocol protocol
+#define pci_get_device pci_find_device
+#endif /* 2.5.70 => 2.4.x */
+
+/*****************************************************************************/
+/* < 2.4.27 or 2.6.0 <= 2.6.5 */
+#if ( LINUX_VERSION_CODE < KERNEL_VERSION(2,4,27) || \
+ ( LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,0) && \
+ LINUX_VERSION_CODE < KERNEL_VERSION(2,6,5) ) )
+
+#ifndef netif_msg_init
+#define netif_msg_init _kc_netif_msg_init
+static inline u32 _kc_netif_msg_init(int debug_value,
+ int default_msg_enable_bits)
+{
+ /* use default */
+ if (debug_value < 0 || debug_value >= (sizeof(u32) * 8))
+ return default_msg_enable_bits;
+ if (debug_value == 0) /* no output */
+ return 0;
+ /* set low N bits */
+ return (1 << debug_value) - 1;
+}
+#endif
+
+#endif /* < 2.4.27 or 2.6.0 <= 2.6.5 */
+/*****************************************************************************/
+#if (( LINUX_VERSION_CODE < KERNEL_VERSION(2,4,27) ) || \
+ (( LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,0) ) && \
+ ( LINUX_VERSION_CODE < KERNEL_VERSION(2,6,3) )))
+#define netdev_priv(x) x->priv
+#endif
+
+/*****************************************************************************/
+/* <= 2.5.0 */
+#if ( LINUX_VERSION_CODE < KERNEL_VERSION(2,5,0) )
+#include <linux/rtnetlink.h>
+#undef pci_register_driver
+#define pci_register_driver pci_module_init
+
+/*
+ * Most of the dma compat code is copied/modifed from the 2.4.37
+ * /include/linux/libata-compat.h header file
+ */
+/* These definitions mirror those in pci.h, so they can be used
+ * interchangeably with their PCI_ counterparts */
+enum dma_data_direction {
+ DMA_BIDIRECTIONAL = 0,
+ DMA_TO_DEVICE = 1,
+ DMA_FROM_DEVICE = 2,
+ DMA_NONE = 3,
+};
+
+struct device {
+ struct pci_dev pdev;
+};
+
+static inline struct pci_dev *to_pci_dev(struct device *dev)
+{
+ return (struct pci_dev *)dev;
+}
+
+static inline struct device *pci_dev_to_dev(struct pci_dev *pdev)
+{
+ return (struct device *)pdev;
+}
+
+#define pdev_printk(lvl, pdev, fmt, args...) \
+ printk("%s %s: " fmt, lvl, pci_name(pdev), ## args)
+#define dev_err(dev, fmt, args...) \
+ pdev_printk(KERN_ERR, to_pci_dev(dev), fmt, ## args)
+#define dev_info(dev, fmt, args...) \
+ pdev_printk(KERN_INFO, to_pci_dev(dev), fmt, ## args)
+#define dev_warn(dev, fmt, args...) \
+ pdev_printk(KERN_WARNING, to_pci_dev(dev), fmt, ## args)
+#define dev_notice(dev, fmt, args...) \
+ pdev_printk(KERN_NOTICE, to_pci_dev(dev), fmt, ## args)
+#define dev_dbg(dev, fmt, args...) \
+ pdev_printk(KERN_DEBUG, to_pci_dev(dev), fmt, ## args)
+
+/* NOTE: dangerous! we ignore the 'gfp' argument */
+#define dma_alloc_coherent(dev,sz,dma,gfp) \
+ pci_alloc_consistent(to_pci_dev(dev),(sz),(dma))
+#define dma_free_coherent(dev,sz,addr,dma_addr) \
+ pci_free_consistent(to_pci_dev(dev),(sz),(addr),(dma_addr))
+
+#define dma_map_page(dev,a,b,c,d) \
+ pci_map_page(to_pci_dev(dev),(a),(b),(c),(d))
+#define dma_unmap_page(dev,a,b,c) \
+ pci_unmap_page(to_pci_dev(dev),(a),(b),(c))
+
+#define dma_map_single(dev,a,b,c) \
+ pci_map_single(to_pci_dev(dev),(a),(b),(c))
+#define dma_unmap_single(dev,a,b,c) \
+ pci_unmap_single(to_pci_dev(dev),(a),(b),(c))
+
+#define dma_map_sg(dev, sg, nents, dir) \
+ pci_map_sg(to_pci_dev(dev), (sg), (nents), (dir)
+#define dma_unmap_sg(dev, sg, nents, dir) \
+ pci_unmap_sg(to_pci_dev(dev), (sg), (nents), (dir)
+
+#define dma_sync_single(dev,a,b,c) \
+ pci_dma_sync_single(to_pci_dev(dev),(a),(b),(c))
+
+/* for range just sync everything, that's all the pci API can do */
+#define dma_sync_single_range(dev,addr,off,sz,dir) \
+ pci_dma_sync_single(to_pci_dev(dev),(addr),(off)+(sz),(dir))
+
+#define dma_set_mask(dev,mask) \
+ pci_set_dma_mask(to_pci_dev(dev),(mask))
+
+/* hlist_* code - double linked lists */
+struct hlist_head {
+ struct hlist_node *first;
+};
+
+struct hlist_node {
+ struct hlist_node *next, **pprev;
+};
+
+static inline void __hlist_del(struct hlist_node *n)
+{
+ struct hlist_node *next = n->next;
+ struct hlist_node **pprev = n->pprev;
+ *pprev = next;
+ if (next)
+ next->pprev = pprev;
+}
+
+static inline void hlist_del(struct hlist_node *n)
+{
+ __hlist_del(n);
+ n->next = NULL;
+ n->pprev = NULL;
+}
+
+static inline void hlist_add_head(struct hlist_node *n, struct hlist_head *h)
+{
+ struct hlist_node *first = h->first;
+ n->next = first;
+ if (first)
+ first->pprev = &n->next;
+ h->first = n;
+ n->pprev = &h->first;
+}
+
+static inline int hlist_empty(const struct hlist_head *h)
+{
+ return !h->first;
+}
+
+#define HLIST_HEAD_INIT { .first = NULL }
+#define HLIST_HEAD(name) struct hlist_head name = { .first = NULL }
+#define INIT_HLIST_HEAD(ptr) ((ptr)->first = NULL)
+static inline void INIT_HLIST_NODE(struct hlist_node *h)
+{
+ h->next = NULL;
+ h->pprev = NULL;
+}
+
+#ifndef might_sleep
+#define might_sleep()
+#endif
+#else
+static inline struct device *pci_dev_to_dev(struct pci_dev *pdev)
+{
+ return &pdev->dev;
+}
+#endif /* <= 2.5.0 */
+
+/*****************************************************************************/
+/* 2.5.28 => 2.4.23 */
+#if ( LINUX_VERSION_CODE < KERNEL_VERSION(2,5,28) )
+
+#include <linux/tqueue.h>
+#define work_struct tq_struct
+#undef INIT_WORK
+#define INIT_WORK(a,b) INIT_TQUEUE(a,(void (*)(void *))b,a)
+#undef container_of
+#define container_of list_entry
+#define schedule_work schedule_task
+#define flush_scheduled_work flush_scheduled_tasks
+#define cancel_work_sync(x) flush_scheduled_work()
+
+#endif /* 2.5.28 => 2.4.17 */
+
+/*****************************************************************************/
+/* 2.6.0 => 2.5.28 */
+#if ( LINUX_VERSION_CODE < KERNEL_VERSION(2,6,0) )
+#ifndef read_barrier_depends
+#define read_barrier_depends() rmb()
+#endif
+
+#undef get_cpu
+#define get_cpu() smp_processor_id()
+#undef put_cpu
+#define put_cpu() do { } while(0)
+#define MODULE_INFO(version, _version)
+#ifndef CONFIG_E1000_DISABLE_PACKET_SPLIT
+#define CONFIG_E1000_DISABLE_PACKET_SPLIT 1
+#endif
+#ifndef CONFIG_IGB_DISABLE_PACKET_SPLIT
+#define CONFIG_IGB_DISABLE_PACKET_SPLIT 1
+#endif
+#ifndef CONFIG_IGC_DISABLE_PACKET_SPLIT
+#define CONFIG_IGC_DISABLE_PACKET_SPLIT 1
+#endif
+
+#define dma_set_coherent_mask(dev,mask) 1
+
+#undef dev_put
+#define dev_put(dev) __dev_put(dev)
+
+#ifndef skb_fill_page_desc
+#define skb_fill_page_desc _kc_skb_fill_page_desc
+void _kc_skb_fill_page_desc(struct sk_buff *skb, int i, struct page *page,
+ int off, int size);
+#endif
+
+#undef ALIGN
+#define ALIGN(x,a) (((x)+(a)-1)&~((a)-1))
+
+#ifndef page_count
+#define page_count(p) atomic_read(&(p)->count)
+#endif
+
+#ifdef MAX_NUMNODES
+#undef MAX_NUMNODES
+#endif
+#define MAX_NUMNODES 1
+
+/* find_first_bit and find_next bit are not defined for most
+ * 2.4 kernels (except for the redhat 2.4.21 kernels
+ */
+#include <linux/bitops.h>
+#define BITOP_WORD(nr) ((nr) / BITS_PER_LONG)
+#undef find_next_bit
+#define find_next_bit _kc_find_next_bit
+unsigned long _kc_find_next_bit(const unsigned long *addr, unsigned long size,
+ unsigned long offset);
+#define find_first_bit(addr, size) find_next_bit((addr), (size), 0)
+
+#ifndef netdev_name
+static inline const char *_kc_netdev_name(const struct net_device *dev)
+{
+ if (strchr(dev->name, '%'))
+ return "(unregistered net_device)";
+ return dev->name;
+}
+
+#define netdev_name(netdev) _kc_netdev_name(netdev)
+#endif /* netdev_name */
+
+#ifndef strlcpy
+#define strlcpy _kc_strlcpy
+size_t _kc_strlcpy(char *dest, const char *src, size_t size);
+#endif /* strlcpy */
+
+#ifndef do_div
+#if BITS_PER_LONG == 64
+#define do_div(n,base) ({ \
+ uint32_t __base = (base); \
+ uint32_t __rem; \
+ __rem = ((uint64_t)(n)) % __base; \
+ (n) = ((uint64_t)(n)) / __base; \
+ __rem; \
+ })
+#elif BITS_PER_LONG == 32
+uint32_t _kc__div64_32(uint64_t * dividend, uint32_t divisor);
+#define do_div(n,base) ({ \
+ uint32_t __base = (base); \
+ uint32_t __rem; \
+ if (likely(((n) >> 32) == 0)) { \
+ __rem = (uint32_t)(n) % __base; \
+ (n) = (uint32_t)(n) / __base; \
+ } else \
+ __rem = _kc__div64_32(&(n), __base); \
+ __rem; \
+ })
+#else /* BITS_PER_LONG == ?? */
+#error do_div() does not yet support the C64
+#endif /* BITS_PER_LONG */
+#endif /* do_div */
+
+#ifndef NSEC_PER_SEC
+#define NSEC_PER_SEC 1000000000L
+#endif
+
+#undef HAVE_I2C_SUPPORT
+#else /* 2.6.0 */
+
+#endif /* 2.6.0 => 2.5.28 */
+/*****************************************************************************/
+#if ( LINUX_VERSION_CODE < KERNEL_VERSION(2,6,3) )
+#define dma_pool pci_pool
+#define dma_pool_destroy pci_pool_destroy
+#define dma_pool_alloc pci_pool_alloc
+#define dma_pool_free pci_pool_free
+
+#define dma_pool_create(name,dev,size,align,allocation) \
+ pci_pool_create((name),to_pci_dev(dev),(size),(align),(allocation))
+#endif /* < 2.6.3 */
+
+/*****************************************************************************/
+/* 2.6.4 => 2.6.0 */
+#if ( LINUX_VERSION_CODE < KERNEL_VERSION(2,6,4) )
+#define MODULE_VERSION(_version) MODULE_INFO(version, _version)
+#endif /* 2.6.4 => 2.6.0 */
+
+/*****************************************************************************/
+/* 2.6.5 => 2.6.0 */
+#if ( LINUX_VERSION_CODE < KERNEL_VERSION(2,6,5) )
+#define dma_sync_single_for_cpu dma_sync_single
+#define dma_sync_single_for_device dma_sync_single
+#define dma_sync_single_range_for_cpu dma_sync_single_range
+#define dma_sync_single_range_for_device dma_sync_single_range
+#ifndef pci_dma_mapping_error
+#define pci_dma_mapping_error _kc_pci_dma_mapping_error
+static inline int _kc_pci_dma_mapping_error(dma_addr_t dma_addr)
+{
+ return dma_addr == 0;
+}
+#endif
+#endif /* 2.6.5 => 2.6.0 */
+
+/*****************************************************************************/
+#if ( LINUX_VERSION_CODE < KERNEL_VERSION(2,6,4) )
+int _kc_scnprintf(char *buf, size_t size, const char *fmt, ...);
+#define scnprintf(buf, size, fmt, args...) _kc_scnprintf(buf, size, fmt, ##args)
+#endif /* < 2.6.4 */
+
+/*****************************************************************************/
+#if ( LINUX_VERSION_CODE < KERNEL_VERSION(2,6,6) )
+/* taken from 2.6 include/linux/bitmap.h */
+#undef bitmap_zero
+#define bitmap_zero _kc_bitmap_zero
+static inline void _kc_bitmap_zero(unsigned long *dst, int nbits)
+{
+ if (nbits <= BITS_PER_LONG)
+ *dst = 0UL;
+ else {
+ int len = BITS_TO_LONGS(nbits) * sizeof(unsigned long);
+ memset(dst, 0, len);
+ }
+}
+
+#define page_to_nid(x) 0
+
+#endif /* < 2.6.6 */
+
+/*****************************************************************************/
+#if ( LINUX_VERSION_CODE < KERNEL_VERSION(2,6,7) )
+#undef if_mii
+#define if_mii _kc_if_mii
+static inline struct mii_ioctl_data *_kc_if_mii(struct ifreq *rq)
+{
+ return (struct mii_ioctl_data *)&rq->ifr_ifru;
+}
+
+#ifndef __force
+#define __force
+#endif
+#endif /* < 2.6.7 */
+
+/*****************************************************************************/
+#if ( LINUX_VERSION_CODE < KERNEL_VERSION(2,6,8) )
+#ifndef PCI_EXP_DEVCTL
+#define PCI_EXP_DEVCTL 8
+#endif
+#ifndef PCI_EXP_DEVCTL_CERE
+#define PCI_EXP_DEVCTL_CERE 0x0001
+#endif
+#define PCI_EXP_FLAGS 2 /* Capabilities register */
+#define PCI_EXP_FLAGS_VERS 0x000f /* Capability version */
+#define PCI_EXP_FLAGS_TYPE 0x00f0 /* Device/Port type */
+#define PCI_EXP_TYPE_ENDPOINT 0x0 /* Express Endpoint */
+#define PCI_EXP_TYPE_LEG_END 0x1 /* Legacy Endpoint */
+#define PCI_EXP_TYPE_ROOT_PORT 0x4 /* Root Port */
+#define PCI_EXP_TYPE_DOWNSTREAM 0x6 /* Downstream Port */
+#define PCI_EXP_FLAGS_SLOT 0x0100 /* Slot implemented */
+#define PCI_EXP_DEVCAP 4 /* Device capabilities */
+#define PCI_EXP_DEVSTA 10 /* Device Status */
+#define msleep(x) do { set_current_state(TASK_UNINTERRUPTIBLE); \
+ schedule_timeout((x * HZ)/1000 + 2); \
+ } while (0)
+
+#endif /* < 2.6.8 */
+
+/*****************************************************************************/
+#if ( LINUX_VERSION_CODE < KERNEL_VERSION(2,6,9))
+#include <net/dsfield.h>
+#define __iomem
+
+#ifndef kcalloc
+#define kcalloc(n, size, flags) _kc_kzalloc(((n) * (size)), flags)
+void *_kc_kzalloc(size_t size, int flags);
+#endif
+#define MSEC_PER_SEC 1000L
+static inline unsigned int _kc_jiffies_to_msecs(const unsigned long j)
+{
+#if HZ <= MSEC_PER_SEC && !(MSEC_PER_SEC % HZ)
+ return (MSEC_PER_SEC / HZ) * j;
+#elif HZ > MSEC_PER_SEC && !(HZ % MSEC_PER_SEC)
+ return (j + (HZ / MSEC_PER_SEC) - 1) / (HZ / MSEC_PER_SEC);
+#else
+ return (j * MSEC_PER_SEC) / HZ;
+#endif
+}
+
+static inline unsigned long _kc_msecs_to_jiffies(const unsigned int m)
+{
+ if (m > _kc_jiffies_to_msecs(MAX_JIFFY_OFFSET))
+ return MAX_JIFFY_OFFSET;
+#if HZ <= MSEC_PER_SEC && !(MSEC_PER_SEC % HZ)
+ return (m + (MSEC_PER_SEC / HZ) - 1) / (MSEC_PER_SEC / HZ);
+#elif HZ > MSEC_PER_SEC && !(HZ % MSEC_PER_SEC)
+ return m * (HZ / MSEC_PER_SEC);
+#else
+ return (m * HZ + MSEC_PER_SEC - 1) / MSEC_PER_SEC;
+#endif
+}
+
+#define msleep_interruptible _kc_msleep_interruptible
+static inline unsigned long _kc_msleep_interruptible(unsigned int msecs)
+{
+ unsigned long timeout = _kc_msecs_to_jiffies(msecs) + 1;
+
+ while (timeout && !signal_pending(current)) {
+ __set_current_state(TASK_INTERRUPTIBLE);
+ timeout = schedule_timeout(timeout);
+ }
+ return _kc_jiffies_to_msecs(timeout);
+}
+
+/* Basic mode control register. */
+#define BMCR_SPEED1000 0x0040 /* MSB of Speed (1000) */
+
+#ifndef __le16
+#define __le16 u16
+#endif
+#ifndef __le32
+#define __le32 u32
+#endif
+#ifndef __le64
+#define __le64 u64
+#endif
+#ifndef __be16
+#define __be16 u16
+#endif
+#ifndef __be32
+#define __be32 u32
+#endif
+#ifndef __be64
+#define __be64 u64
+#endif
+
+static inline struct vlan_ethhdr *vlan_eth_hdr(const struct sk_buff *skb)
+{
+ return (struct vlan_ethhdr *)skb->mac.raw;
+}
+
+/* Wake-On-Lan options. */
+#define WAKE_PHY BIT(0)
+#define WAKE_UCAST BIT(1)
+#define WAKE_MCAST BIT(2)
+#define WAKE_BCAST BIT(3)
+#define WAKE_ARP BIT(4)
+#define WAKE_MAGIC BIT(5)
+#define WAKE_MAGICSECURE BIT(6) /* only meaningful if WAKE_MAGIC */
+
+#define skb_header_pointer _kc_skb_header_pointer
+static inline void *_kc_skb_header_pointer(const struct sk_buff *skb,
+ int offset, int len, void *buffer)
+{
+ int hlen = skb_headlen(skb);
+
+ if (hlen - offset >= len)
+ return skb->data + offset;
+
+#ifdef MAX_SKB_FRAGS
+ if (skb_copy_bits(skb, offset, buffer, len) < 0)
+ return NULL;
+
+ return buffer;
+#else
+ return NULL;
+#endif
+
+#ifndef NETDEV_TX_OK
+#define NETDEV_TX_OK 0
+#endif
+#ifndef NETDEV_TX_BUSY
+#define NETDEV_TX_BUSY 1
+#endif
+#ifndef NETDEV_TX_LOCKED
+#define NETDEV_TX_LOCKED -1
+#endif
+}
+
+#ifndef __bitwise
+#define __bitwise
+#endif
+#endif /* < 2.6.9 */
+
+/*****************************************************************************/
+#if ( LINUX_VERSION_CODE < KERNEL_VERSION(2,6,10) )
+#ifdef module_param_array_named
+#undef module_param_array_named
+#define module_param_array_named(name, array, type, nump, perm) \
+ static struct kparam_array __param_arr_##name \
+ = { ARRAY_SIZE(array), nump, param_set_##type, param_get_##type, \
+ sizeof(array[0]), array }; \
+ module_param_call(name, param_array_set, param_array_get, \
+ &__param_arr_##name, perm)
+#endif /* module_param_array_named */
+/*
+ * num_online is broken for all < 2.6.10 kernels. This is needed to support
+ * Node module parameter of ixgbe.
+ */
+#undef num_online_nodes
+#define num_online_nodes(n) 1
+extern DECLARE_BITMAP(_kcompat_node_online_map, MAX_NUMNODES);
+#undef node_online_map
+#define node_online_map _kcompat_node_online_map
+#define pci_get_class pci_find_class
+#endif /* < 2.6.10 */
+
+/*****************************************************************************/
+#if ( LINUX_VERSION_CODE < KERNEL_VERSION(2,6,11) )
+#define PCI_D0 0
+#define PCI_D1 1
+#define PCI_D2 2
+#define PCI_D3hot 3
+#define PCI_D3cold 4
+typedef int pci_power_t;
+#define pci_choose_state(pdev,state) state
+#define PMSG_SUSPEND 3
+#define PCI_EXP_LNKCTL 16
+
+#undef NETIF_F_LLTX
+
+#ifndef ARCH_HAS_PREFETCH
+#define prefetch(X)
+#endif
+
+#ifndef NET_IP_ALIGN
+#define NET_IP_ALIGN 2
+#endif
+
+#define KC_USEC_PER_SEC 1000000L
+#define usecs_to_jiffies _kc_usecs_to_jiffies
+static inline unsigned int _kc_jiffies_to_usecs(const unsigned long j)
+{
+#if HZ <= KC_USEC_PER_SEC && !(KC_USEC_PER_SEC % HZ)
+ return (KC_USEC_PER_SEC / HZ) * j;
+#elif HZ > KC_USEC_PER_SEC && !(HZ % KC_USEC_PER_SEC)
+ return (j + (HZ / KC_USEC_PER_SEC) - 1) / (HZ / KC_USEC_PER_SEC);
+#else
+ return (j * KC_USEC_PER_SEC) / HZ;
+#endif
+}
+
+static inline unsigned long _kc_usecs_to_jiffies(const unsigned int m)
+{
+ if (m > _kc_jiffies_to_usecs(MAX_JIFFY_OFFSET))
+ return MAX_JIFFY_OFFSET;
+#if HZ <= KC_USEC_PER_SEC && !(KC_USEC_PER_SEC % HZ)
+ return (m + (KC_USEC_PER_SEC / HZ) - 1) / (KC_USEC_PER_SEC / HZ);
+#elif HZ > KC_USEC_PER_SEC && !(HZ % KC_USEC_PER_SEC)
+ return m * (HZ / KC_USEC_PER_SEC);
+#else
+ return (m * HZ + KC_USEC_PER_SEC - 1) / KC_USEC_PER_SEC;
+#endif
+}
+
+#define PCI_EXP_LNKCAP 12 /* Link Capabilities */
+#define PCI_EXP_LNKSTA 18 /* Link Status */
+#define PCI_EXP_SLTCAP 20 /* Slot Capabilities */
+#define PCI_EXP_SLTCTL 24 /* Slot Control */
+#define PCI_EXP_SLTSTA 26 /* Slot Status */
+#define PCI_EXP_RTCTL 28 /* Root Control */
+#define PCI_EXP_RTCAP 30 /* Root Capabilities */
+#define PCI_EXP_RTSTA 32 /* Root Status */
+#endif /* < 2.6.11 */
+
+/*****************************************************************************/
+#if ( LINUX_VERSION_CODE < KERNEL_VERSION(2,6,12) )
+#include <linux/reboot.h>
+#define USE_REBOOT_NOTIFIER
+
+/* Generic MII registers. */
+#define MII_CTRL1000 0x09 /* 1000BASE-T control */
+#define MII_STAT1000 0x0a /* 1000BASE-T status */
+/* Advertisement control register. */
+#define ADVERTISE_PAUSE_CAP 0x0400 /* Try for pause */
+#define ADVERTISE_PAUSE_ASYM 0x0800 /* Try for asymmetric pause */
+/* Link partner ability register. */
+#define LPA_PAUSE_CAP 0x0400 /* Can pause */
+#define LPA_PAUSE_ASYM 0x0800 /* Can pause asymetrically */
+/* 1000BASE-T Control register */
+#define ADVERTISE_1000FULL 0x0200 /* Advertise 1000BASE-T full duplex */
+#define ADVERTISE_1000HALF 0x0100 /* Advertise 1000BASE-T half duplex */
+/* 1000BASE-T Status register */
+#define LPA_1000LOCALRXOK 0x2000 /* Link partner local receiver status */
+#define LPA_1000REMRXOK 0x1000 /* Link partner remote receiver status */
+
+#ifndef is_zero_ether_addr
+#define is_zero_ether_addr _kc_is_zero_ether_addr
+static inline int _kc_is_zero_ether_addr(const u8 *addr)
+{
+ return !(addr[0] | addr[1] | addr[2] | addr[3] | addr[4] | addr[5]);
+}
+#endif /* is_zero_ether_addr */
+#ifndef is_multicast_ether_addr
+#define is_multicast_ether_addr _kc_is_multicast_ether_addr
+static inline int _kc_is_multicast_ether_addr(const u8 *addr)
+{
+ return addr[0] & 0x01;
+}
+#endif /* is_multicast_ether_addr */
+#endif /* < 2.6.12 */
+
+/*****************************************************************************/
+#if ( LINUX_VERSION_CODE < KERNEL_VERSION(2,6,13) )
+#ifndef kstrdup
+#define kstrdup _kc_kstrdup
+char *_kc_kstrdup(const char *s, unsigned int gfp);
+#endif
+#endif /* < 2.6.13 */
+
+/*****************************************************************************/
+#if ( LINUX_VERSION_CODE < KERNEL_VERSION(2,6,14) )
+#define pm_message_t u32
+#ifndef kzalloc
+#define kzalloc _kc_kzalloc
+void *_kc_kzalloc(size_t size, int flags);
+#endif
+
+/* Generic MII registers. */
+#define MII_ESTATUS 0x0f /* Extended Status */
+/* Basic mode status register. */
+#define BMSR_ESTATEN 0x0100 /* Extended Status in R15 */
+/* Extended status register. */
+#define ESTATUS_1000_TFULL 0x2000 /* Can do 1000BT Full */
+#define ESTATUS_1000_THALF 0x1000 /* Can do 1000BT Half */
+
+#define SUPPORTED_Pause BIT(13)
+#define SUPPORTED_Asym_Pause BIT(14)
+#define ADVERTISED_Pause BIT(13)
+#define ADVERTISED_Asym_Pause BIT(14)
+
+#if (!(RHEL_RELEASE_CODE && \
+ (RHEL_RELEASE_CODE > RHEL_RELEASE_VERSION(4,3)) && \
+ (RHEL_RELEASE_CODE < RHEL_RELEASE_VERSION(5,0))))
+#if ((LINUX_VERSION_CODE == KERNEL_VERSION(2,6,9)) && !defined(gfp_t))
+#define gfp_t unsigned
+#else
+typedef unsigned gfp_t;
+#endif
+#endif /* !RHEL4.3->RHEL5.0 */
+
+#if ( LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,9) )
+#ifdef CONFIG_X86_64
+#define dma_sync_single_range_for_cpu(dev, addr, off, sz, dir) \
+ dma_sync_single_for_cpu((dev), (addr), (off) + (sz), (dir))
+#define dma_sync_single_range_for_device(dev, addr, off, sz, dir) \
+ dma_sync_single_for_device((dev), (addr), (off) + (sz), (dir))
+#endif
+#endif
+#endif /* < 2.6.14 */
+
+/*****************************************************************************/
+#if ( LINUX_VERSION_CODE < KERNEL_VERSION(2,6,15) )
+#ifndef kfree_rcu
+/* this is placed here due to a lack of rcu_barrier in previous kernels */
+#define kfree_rcu(_ptr, _offset) kfree(_ptr)
+#endif /* kfree_rcu */
+#ifndef vmalloc_node
+#define vmalloc_node(a,b) vmalloc(a)
+#endif /* vmalloc_node */
+
+#define setup_timer(_timer, _function, _data) \
+do { \
+ (_timer)->function = _function; \
+ (_timer)->data = _data; \
+ init_timer(_timer); \
+} while (0)
+#ifndef device_can_wakeup
+#define device_can_wakeup(dev) (1)
+#endif
+#ifndef device_set_wakeup_enable
+#define device_set_wakeup_enable(dev, val) do{}while(0)
+#endif
+#ifndef device_init_wakeup
+#define device_init_wakeup(dev,val) do {} while (0)
+#endif
+static inline unsigned _kc_compare_ether_addr(const u8 *addr1, const u8 *addr2)
+{
+ const u16 *a = (const u16 *)addr1;
+ const u16 *b = (const u16 *)addr2;
+
+ return ((a[0] ^ b[0]) | (a[1] ^ b[1]) | (a[2] ^ b[2])) != 0;
+}
+
+#undef compare_ether_addr
+#define compare_ether_addr(addr1, addr2) _kc_compare_ether_addr(addr1, addr2)
+#endif /* < 2.6.15 */
+
+/*****************************************************************************/
+#if ( LINUX_VERSION_CODE < KERNEL_VERSION(2,6,16) )
+#undef DEFINE_MUTEX
+#define DEFINE_MUTEX(x) DECLARE_MUTEX(x)
+#define mutex_lock(x) down_interruptible(x)
+#define mutex_unlock(x) up(x)
+
+#ifndef ____cacheline_internodealigned_in_smp
+#ifdef CONFIG_SMP
+#define ____cacheline_internodealigned_in_smp ____cacheline_aligned_in_smp
+#else
+#define ____cacheline_internodealigned_in_smp
+#endif /* CONFIG_SMP */
+#endif /* ____cacheline_internodealigned_in_smp */
+#undef HAVE_PCI_ERS
+#else /* 2.6.16 and above */
+#undef HAVE_PCI_ERS
+#define HAVE_PCI_ERS
+#if ( SLE_VERSION_CODE && SLE_VERSION_CODE == SLE_VERSION(10,4,0) )
+#ifdef device_can_wakeup
+#undef device_can_wakeup
+#endif /* device_can_wakeup */
+#define device_can_wakeup(dev) 1
+#endif /* SLE_VERSION(10,4,0) */
+#endif /* < 2.6.16 */
+
+/*****************************************************************************/
+#if ( LINUX_VERSION_CODE < KERNEL_VERSION(2,6,17) )
+#ifndef dev_notice
+#define dev_notice(dev, fmt, args...) \
+ dev_printk(KERN_NOTICE, dev, fmt, ## args)
+#endif
+
+#ifndef first_online_node
+#define first_online_node 0
+#endif
+#ifndef NET_SKB_PAD
+#define NET_SKB_PAD 16
+#endif
+#endif /* < 2.6.17 */
+
+/*****************************************************************************/
+#if ( LINUX_VERSION_CODE < KERNEL_VERSION(2,6,18) )
+
+#ifndef IRQ_HANDLED
+#define irqreturn_t void
+#define IRQ_HANDLED
+#define IRQ_NONE
+#endif
+
+#ifndef IRQF_PROBE_SHARED
+#ifdef SA_PROBEIRQ
+#define IRQF_PROBE_SHARED SA_PROBEIRQ
+#else
+#define IRQF_PROBE_SHARED 0
+#endif
+#endif
+
+#ifndef IRQF_SHARED
+#define IRQF_SHARED SA_SHIRQ
+#endif
+
+#ifndef ARRAY_SIZE
+#define ARRAY_SIZE(x) (sizeof(x) / sizeof((x)[0]))
+#endif
+
+#ifndef skb_is_gso
+#ifdef NETIF_F_TSO
+#define skb_is_gso _kc_skb_is_gso
+static inline int _kc_skb_is_gso(const struct sk_buff *skb)
+{
+ return skb_shinfo(skb)->gso_size;
+}
+#else
+#define skb_is_gso(a) 0
+#endif
+#endif
+
+#ifndef resource_size_t
+#define resource_size_t unsigned long
+#endif
+
+#ifdef skb_pad
+#undef skb_pad
+#endif
+#define skb_pad(x,y) _kc_skb_pad(x, y)
+int _kc_skb_pad(struct sk_buff *skb, int pad);
+#ifdef skb_padto
+#undef skb_padto
+#endif
+#define skb_padto(x,y) _kc_skb_padto(x, y)
+static inline int _kc_skb_padto(struct sk_buff *skb, unsigned int len)
+{
+ unsigned int size = skb->len;
+ if (likely(size >= len))
+ return 0;
+ return _kc_skb_pad(skb, len - size);
+}
+
+#ifndef DECLARE_PCI_UNMAP_ADDR
+#define DECLARE_PCI_UNMAP_ADDR(ADDR_NAME) \
+ dma_addr_t ADDR_NAME
+#define DECLARE_PCI_UNMAP_LEN(LEN_NAME) \
+ u32 LEN_NAME
+#define pci_unmap_addr(PTR, ADDR_NAME) \
+ ((PTR)->ADDR_NAME)
+#define pci_unmap_addr_set(PTR, ADDR_NAME, VAL) \
+ (((PTR)->ADDR_NAME) = (VAL))
+#define pci_unmap_len(PTR, LEN_NAME) \
+ ((PTR)->LEN_NAME)
+#define pci_unmap_len_set(PTR, LEN_NAME, VAL) \
+ (((PTR)->LEN_NAME) = (VAL))
+#endif /* DECLARE_PCI_UNMAP_ADDR */
+#endif /* < 2.6.18 */
+
+/*****************************************************************************/
+#if ( LINUX_VERSION_CODE < KERNEL_VERSION(2,6,19) )
+enum pcie_link_width {
+ PCIE_LNK_WIDTH_RESRV = 0x00,
+ PCIE_LNK_X1 = 0x01,
+ PCIE_LNK_X2 = 0x02,
+ PCIE_LNK_X4 = 0x04,
+ PCIE_LNK_X8 = 0x08,
+ PCIE_LNK_X12 = 0x0C,
+ PCIE_LNK_X16 = 0x10,
+ PCIE_LNK_X32 = 0x20,
+ PCIE_LNK_WIDTH_UNKNOWN = 0xFF,
+};
+
+#if (!(RHEL_RELEASE_CODE && RHEL_RELEASE_CODE >= RHEL_RELEASE_VERSION(5,0)))
+#define i_private u.generic_ip
+#endif /* >= RHEL 5.0 */
+
+#ifndef DIV_ROUND_UP
+#define DIV_ROUND_UP(n,d) (((n) + (d) - 1) / (d))
+#endif
+#ifndef __ALIGN_MASK
+#define __ALIGN_MASK(x, mask) (((x) + (mask)) & ~(mask))
+#endif
+#if ( LINUX_VERSION_CODE >= KERNEL_VERSION(2,5,0) )
+#if (!((RHEL_RELEASE_CODE && \
+ ((RHEL_RELEASE_CODE > RHEL_RELEASE_VERSION(4,4) && \
+ RHEL_RELEASE_CODE < RHEL_RELEASE_VERSION(5,0)) || \
+ (RHEL_RELEASE_CODE > RHEL_RELEASE_VERSION(5,0))))))
+typedef irqreturn_t(*irq_handler_t) (int, void *, struct pt_regs *);
+#endif
+#if (RHEL_RELEASE_CODE && RHEL_RELEASE_CODE < RHEL_RELEASE_VERSION(6,0))
+#undef CONFIG_INET_LRO
+#undef CONFIG_INET_LRO_MODULE
+#endif
+typedef irqreturn_t(*new_handler_t) (int, void *);
+static inline irqreturn_t _kc_request_irq(unsigned int irq,
+ new_handler_t handler,
+ unsigned long flags,
+ const char *devname, void *dev_id)
+#else /* 2.4.x */
+typedef void (*irq_handler_t) (int, void *, struct pt_regs *);
+typedef void (*new_handler_t) (int, void *);
+static inline int _kc_request_irq(unsigned int irq, new_handler_t handler,
+ unsigned long flags, const char *devname,
+ void *dev_id)
+#endif /* >= 2.5.x */
+{
+ irq_handler_t new_handler = (irq_handler_t) handler;
+ return request_irq(irq, new_handler, flags, devname, dev_id);
+}
+
+#undef request_irq
+#define request_irq(irq, handler, flags, devname, dev_id) _kc_request_irq((irq), (handler), (flags), (devname), (dev_id))
+
+#define irq_handler_t new_handler_t
+
+#if ( LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,11) )
+#ifndef skb_checksum_help
+static inline int __kc_skb_checksum_help(struct sk_buff *skb)
+{
+ return skb_checksum_help(skb, 0);
+}
+
+#define skb_checksum_help(skb) __kc_skb_checksum_help((skb))
+#endif
+#endif /* < 2.6.19 && >= 2.6.11 */
+
+/* pci_restore_state and pci_save_state handles MSI/PCIE from 2.6.19 */
+#if (!(RHEL_RELEASE_CODE && RHEL_RELEASE_CODE >= RHEL_RELEASE_VERSION(5,4)))
+#define PCIE_CONFIG_SPACE_LEN 256
+#define PCI_CONFIG_SPACE_LEN 64
+#define PCIE_LINK_STATUS 0x12
+#define pci_config_space_ich8lan() { \
+ if (adapter->flags & FLAG_IS_ICH) \
+ size = PCIE_CONFIG_SPACE_LEN; \
+}
+#undef pci_save_state
+int _kc_pci_save_state(struct pci_dev *);
+#define pci_save_state(pdev) _kc_pci_save_state(pdev)
+#undef pci_restore_state
+void _kc_pci_restore_state(struct pci_dev *);
+#define pci_restore_state(pdev) _kc_pci_restore_state(pdev)
+#endif /* !(RHEL_RELEASE_CODE >= RHEL 5.4) */
+
+#ifdef HAVE_PCI_ERS
+#undef free_netdev
+void _kc_free_netdev(struct net_device *);
+#define free_netdev(netdev) _kc_free_netdev(netdev)
+#endif
+static inline int pci_enable_pcie_error_reporting(struct pci_dev __always_unused
+ *dev)
+{
+ return 0;
+}
+
+#define pci_disable_pcie_error_reporting(dev) do {} while (0)
+#define pci_cleanup_aer_uncorrect_error_status(dev) do {} while (0)
+
+void *_kc_kmemdup(const void *src, size_t len, unsigned gfp);
+#define kmemdup(src, len, gfp) _kc_kmemdup(src, len, gfp)
+#ifndef bool
+#define bool _Bool
+#define true 1
+#define false 0
+#endif
+#else /* 2.6.19 */
+#include <linux/aer.h>
+#include <linux/pci_hotplug.h>
+
+#define NEW_SKB_CSUM_HELP
+#endif /* < 2.6.19 */
+
+/*****************************************************************************/
+#if ( LINUX_VERSION_CODE < KERNEL_VERSION(2,6,20) )
+#if ( LINUX_VERSION_CODE >= KERNEL_VERSION(2,5,28) )
+#undef INIT_WORK
+#define INIT_WORK(_work, _func) \
+do { \
+ INIT_LIST_HEAD(&(_work)->entry); \
+ (_work)->pending = 0; \
+ (_work)->func = (void (*)(void *))_func; \
+ (_work)->data = _work; \
+ init_timer(&(_work)->timer); \
+} while (0)
+#endif
+
+#ifndef PCI_VDEVICE
+#define PCI_VDEVICE(ven, dev) \
+ PCI_VENDOR_ID_##ven, (dev), \
+ PCI_ANY_ID, PCI_ANY_ID, 0, 0
+#endif
+
+#ifndef PCI_VENDOR_ID_INTEL
+#define PCI_VENDOR_ID_INTEL 0x8086
+#endif
+
+#ifndef round_jiffies
+#define round_jiffies(x) x
+#endif
+
+#define csum_offset csum
+
+#define HAVE_EARLY_VMALLOC_NODE
+#define dev_to_node(dev) -1
+#undef set_dev_node
+/* remove compiler warning with b=b, for unused variable */
+#define set_dev_node(a, b) do { (b) = (b); } while(0)
+
+#if (!(RHEL_RELEASE_CODE && \
+ (((RHEL_RELEASE_CODE >= RHEL_RELEASE_VERSION(4,7)) && \
+ (RHEL_RELEASE_CODE < RHEL_RELEASE_VERSION(5,0))) || \
+ (RHEL_RELEASE_CODE >= RHEL_RELEASE_VERSION(5,6)))) && \
+ !(SLE_VERSION_CODE && SLE_VERSION_CODE >= SLE_VERSION(10,2,0)))
+typedef __u16 __bitwise __sum16;
+typedef __u32 __bitwise __wsum;
+#endif
+
+#if (!(RHEL_RELEASE_CODE && \
+ (((RHEL_RELEASE_CODE >= RHEL_RELEASE_VERSION(4,7)) && \
+ (RHEL_RELEASE_CODE < RHEL_RELEASE_VERSION(5,0))) || \
+ (RHEL_RELEASE_CODE >= RHEL_RELEASE_VERSION(5,4)))) && \
+ !(SLE_VERSION_CODE && SLE_VERSION_CODE >= SLE_VERSION(10,2,0)))
+static inline __wsum csum_unfold(__sum16 n)
+{
+ return (__force __wsum) n;
+}
+#endif
+
+#else /* < 2.6.20 */
+#define HAVE_DEVICE_NUMA_NODE
+#endif /* < 2.6.20 */
+
+/*****************************************************************************/
+#if ( LINUX_VERSION_CODE < KERNEL_VERSION(2,6,21) )
+#define to_net_dev(class) container_of(class, struct net_device, class_dev)
+#define NETDEV_CLASS_DEV
+#if (!(RHEL_RELEASE_CODE && RHEL_RELEASE_CODE > RHEL_RELEASE_VERSION(5,5)))
+#define vlan_group_get_device(vg, id) (vg->vlan_devices[id])
+#define vlan_group_set_device(vg, id, dev) \
+ do { \
+ if (vg) vg->vlan_devices[id] = dev; \
+ } while (0)
+#endif /* !(RHEL_RELEASE_CODE > RHEL_RELEASE_VERSION(5,5)) */
+#define pci_channel_offline(pdev) (pdev->error_state && \
+ pdev->error_state != pci_channel_io_normal)
+#define pci_request_selected_regions(pdev, bars, name) \
+ pci_request_regions(pdev, name)
+#define pci_release_selected_regions(pdev, bars) pci_release_regions(pdev);
+
+#ifndef __aligned
+#define __aligned(x) __attribute__((aligned(x)))
+#endif
+
+struct pci_dev *_kc_netdev_to_pdev(struct net_device *netdev);
+#define netdev_to_dev(netdev) \
+ pci_dev_to_dev(_kc_netdev_to_pdev(netdev))
+#define devm_kzalloc(dev, size, flags) kzalloc(size, flags)
+#define devm_kfree(dev, p) kfree(p)
+#else /* 2.6.21 */
+static inline struct device *netdev_to_dev(struct net_device *netdev)
+{
+ return &netdev->dev;
+}
+
+#endif /* < 2.6.21 */
+
+/*****************************************************************************/
+#if ( LINUX_VERSION_CODE < KERNEL_VERSION(2,6,22) )
+#define tcp_hdr(skb) (skb->h.th)
+#define tcp_hdrlen(skb) (skb->h.th->doff << 2)
+#define skb_transport_offset(skb) (skb->h.raw - skb->data)
+#define skb_transport_header(skb) (skb->h.raw)
+#define ipv6_hdr(skb) (skb->nh.ipv6h)
+#define ip_hdr(skb) (skb->nh.iph)
+#define skb_network_offset(skb) (skb->nh.raw - skb->data)
+#define skb_network_header(skb) (skb->nh.raw)
+#define skb_tail_pointer(skb) skb->tail
+#define skb_reset_tail_pointer(skb) \
+ do { \
+ skb->tail = skb->data; \
+ } while (0)
+#define skb_set_tail_pointer(skb, offset) \
+ do { \
+ skb->tail = skb->data + offset; \
+ } while (0)
+#define skb_copy_to_linear_data(skb, from, len) \
+ memcpy(skb->data, from, len)
+#define skb_copy_to_linear_data_offset(skb, offset, from, len) \
+ memcpy(skb->data + offset, from, len)
+#define skb_network_header_len(skb) (skb->h.raw - skb->nh.raw)
+#define pci_register_driver pci_module_init
+#define skb_mac_header(skb) skb->mac.raw
+
+#ifdef NETIF_F_MULTI_QUEUE
+#ifndef alloc_etherdev_mq
+#define alloc_etherdev_mq(_a, _b) alloc_etherdev(_a)
+#endif
+#endif /* NETIF_F_MULTI_QUEUE */
+
+#ifndef ETH_FCS_LEN
+#define ETH_FCS_LEN 4
+#endif
+#define cancel_work_sync(x) flush_scheduled_work()
+#ifndef udp_hdr
+#define udp_hdr _udp_hdr
+static inline struct udphdr *_udp_hdr(const struct sk_buff *skb)
+{
+ return (struct udphdr *)skb_transport_header(skb);
+}
+#endif
+
+#ifdef cpu_to_be16
+#undef cpu_to_be16
+#endif
+#define cpu_to_be16(x) __constant_htons(x)
+
+#if (!(RHEL_RELEASE_CODE && RHEL_RELEASE_CODE > RHEL_RELEASE_VERSION(5,1)))
+enum {
+ DUMP_PREFIX_NONE,
+ DUMP_PREFIX_ADDRESS,
+ DUMP_PREFIX_OFFSET
+};
+#endif /* !(RHEL_RELEASE_CODE > RHEL_RELEASE_VERSION(5,1)) */
+#ifndef hex_asc
+#define hex_asc(x) "0123456789abcdef"[x]
+#endif
+#include <linux/ctype.h>
+void _kc_print_hex_dump(const char *level, const char *prefix_str,
+ int prefix_type, int rowsize, int groupsize,
+ const void *buf, size_t len, bool ascii);
+#define print_hex_dump(lvl, s, t, r, g, b, l, a) \
+ _kc_print_hex_dump(lvl, s, t, r, g, b, l, a)
+#ifndef ADVERTISED_2500baseX_Full
+#define ADVERTISED_2500baseX_Full BIT(15)
+#endif
+#ifndef SUPPORTED_2500baseX_Full
+#define SUPPORTED_2500baseX_Full BIT(15)
+#endif
+
+#ifndef ETH_P_PAUSE
+#define ETH_P_PAUSE 0x8808
+#endif
+
+static inline int compound_order(struct page *page)
+{
+ return 0;
+}
+
+#define __must_be_array(a) 0
+
+#ifndef SKB_WITH_OVERHEAD
+#define SKB_WITH_OVERHEAD(X) \
+ ((X) - SKB_DATA_ALIGN(sizeof(struct skb_shared_info)))
+#endif
+#else /* 2.6.22 */
+#define ETH_TYPE_TRANS_SETS_DEV
+#define HAVE_NETDEV_STATS_IN_NETDEV
+#endif /* < 2.6.22 */
+
+/*****************************************************************************/
+#if ( LINUX_VERSION_CODE > KERNEL_VERSION(2,6,22) )
+#undef SET_MODULE_OWNER
+#define SET_MODULE_OWNER(dev) do { } while (0)
+#endif /* > 2.6.22 */
+
+/*****************************************************************************/
+#if ( LINUX_VERSION_CODE < KERNEL_VERSION(2,6,23) )
+#define netif_subqueue_stopped(_a, _b) 0
+#ifndef PTR_ALIGN
+#define PTR_ALIGN(p, a) ((typeof(p))ALIGN((unsigned long)(p), (a)))
+#endif
+
+#ifndef CONFIG_PM_SLEEP
+#define CONFIG_PM_SLEEP CONFIG_PM
+#endif
+
+#if ( LINUX_VERSION_CODE > KERNEL_VERSION(2,6,13) )
+#define HAVE_ETHTOOL_GET_PERM_ADDR
+#endif /* 2.6.14 through 2.6.22 */
+
+static inline int __kc_skb_cow_head(struct sk_buff *skb, unsigned int headroom)
+{
+ int delta = 0;
+
+ if (headroom > (skb->data - skb->head))
+ delta = headroom - (skb->data - skb->head);
+
+ if (delta || skb_header_cloned(skb))
+ return pskb_expand_head(skb, ALIGN(delta, NET_SKB_PAD), 0,
+ GFP_ATOMIC);
+ return 0;
+}
+
+#define skb_cow_head(s, h) __kc_skb_cow_head((s), (h))
+#endif /* < 2.6.23 */
+
+/*****************************************************************************/
+#if ( LINUX_VERSION_CODE < KERNEL_VERSION(2,6,24) )
+#ifndef ETH_FLAG_LRO
+#define ETH_FLAG_LRO NETIF_F_LRO
+#endif
+
+#ifndef ACCESS_ONCE
+#define ACCESS_ONCE(x) (*(volatile typeof(x) *)&(x))
+#endif
+
+/* if GRO is supported then the napi struct must already exist */
+#ifndef NETIF_F_GRO
+/* NAPI API changes in 2.6.24 break everything */
+struct napi_struct {
+ /* used to look up the real NAPI polling routine */
+ int (*poll) (struct napi_struct *, int);
+ struct net_device *dev;
+ int weight;
+};
+#endif
+
+#ifdef NAPI
+int __kc_adapter_clean(struct net_device *, int *);
+/* The following defines only provide limited support for NAPI calls and
+ * should only be used by drivers which are not multi-queue enabled.
+ */
+
+#define napi_to_poll_dev(_napi) (_napi)->dev
+
+static inline void __kc_netif_napi_add(struct net_device *dev,
+ struct napi_struct *napi,
+ int (*poll) (struct napi_struct *, int),
+ int weight)
+{
+ dev->poll = __kc_adapter_clean;
+ dev->weight = weight;
+ napi->poll = poll;
+ napi->dev = dev;
+}
+
+#define netif_napi_add __kc_netif_napi_add
+
+#define netif_napi_del(_a) do {} while (0)
+#define napi_schedule_prep(_napi) netif_rx_schedule_prep((_napi)->dev)
+#define napi_schedule(_napi) netif_rx_schedule((_napi)->dev)
+#define napi_enable(_napi) netif_poll_enable(napi_to_poll_dev(_napi))
+#define napi_disable(_napi) netif_poll_disable(napi_to_poll_dev(_napi))
+#ifdef CONFIG_SMP
+static inline void napi_synchronize(const struct napi_struct *n)
+{
+ struct net_device *dev = napi_to_poll_dev(n);
+
+ while (test_bit(__LINK_STATE_RX_SCHED, &dev->state)) {
+ /* No hurry. */
+ msleep(1);
+ }
+}
+#else
+#define napi_synchronize(n) barrier()
+#endif /* CONFIG_SMP */
+#define __napi_schedule(_napi) __netif_rx_schedule(napi_to_poll_dev(_napi))
+static inline void _kc_napi_complete(struct napi_struct *napi)
+{
+#ifdef NETIF_F_GRO
+ napi_gro_flush(napi);
+#endif
+ netif_rx_complete(napi_to_poll_dev(napi));
+}
+
+#define napi_complete _kc_napi_complete
+#else /* NAPI */
+
+/* The following definitions are only used if we don't support NAPI at all. */
+
+static inline __kc_netif_napi_add(struct net_device *dev,
+ struct napi_struct *napi,
+ int (*poll) (struct napi_struct *, int),
+ int weight)
+{
+ dev->poll = poll;
+ dev->weight = weight;
+ napi->poll = poll;
+ napi->weight = weight;
+ napi->dev = dev;
+}
+
+#define netif_napi_del(_a) do {} while (0)
+#endif /* NAPI */
+
+#undef dev_get_by_name
+#define dev_get_by_name(_a, _b) dev_get_by_name(_b)
+#define __netif_subqueue_stopped(_a, _b) netif_subqueue_stopped(_a, _b)
+#ifndef DMA_BIT_MASK
+#define DMA_BIT_MASK(n) (((n) == 64) ? DMA_64BIT_MASK : ((1ULL<<(n))-1))
+#endif
+
+#ifdef NETIF_F_TSO6
+#define skb_is_gso_v6 _kc_skb_is_gso_v6
+static inline int _kc_skb_is_gso_v6(const struct sk_buff *skb)
+{
+ return skb_shinfo(skb)->gso_type & SKB_GSO_TCPV6;
+}
+#endif /* NETIF_F_TSO6 */
+
+#ifndef KERN_CONT
+#define KERN_CONT ""
+#endif
+#ifndef pr_err
+#define pr_err(fmt, arg...) \
+ printk(KERN_ERR fmt, ##arg)
+#endif
+
+#ifndef rounddown_pow_of_two
+#define rounddown_pow_of_two(n) \
+ __builtin_constant_p(n) ? ( \
+ (n == 1) ? 0 : \
+ (1UL << ilog2(n))) : \
+ (1UL << (fls_long(n) - 1))
+#endif
+
+#else /* < 2.6.24 */
+#define HAVE_ETHTOOL_GET_SSET_COUNT
+#define HAVE_NETDEV_NAPI_LIST
+#endif /* < 2.6.24 */
+
+/*****************************************************************************/
+#if ( LINUX_VERSION_CODE > KERNEL_VERSION(2,6,24) )
+#if ( LINUX_VERSION_CODE < KERNEL_VERSION(3,2,0) )
+#define INCLUDE_PM_QOS_PARAMS_H
+#include <linux/pm_qos_params.h>
+#else /* >= 3.2.0 */
+#include <linux/pm_qos.h>
+#endif /* else >= 3.2.0 */
+#endif /* > 2.6.24 */
+
+/*****************************************************************************/
+#if ( LINUX_VERSION_CODE < KERNEL_VERSION(2,6,25) )
+#define PM_QOS_CPU_DMA_LATENCY 1
+
+#if ( LINUX_VERSION_CODE > KERNEL_VERSION(2,6,18) )
+#include <linux/latency.h>
+#define PM_QOS_DEFAULT_VALUE INFINITE_LATENCY
+#define pm_qos_add_requirement(pm_qos_class, name, value) \
+ set_acceptable_latency(name, value)
+#define pm_qos_remove_requirement(pm_qos_class, name) \
+ remove_acceptable_latency(name)
+#define pm_qos_update_requirement(pm_qos_class, name, value) \
+ modify_acceptable_latency(name, value)
+#else
+#define PM_QOS_DEFAULT_VALUE -1
+#define pm_qos_add_requirement(pm_qos_class, name, value)
+#define pm_qos_remove_requirement(pm_qos_class, name)
+#define pm_qos_update_requirement(pm_qos_class, name, value) { \
+ if (value != PM_QOS_DEFAULT_VALUE) { \
+ printk(KERN_WARNING "%s: unable to set PM QoS requirement\n", \
+ pci_name(adapter->pdev)); \
+ } \
+}
+
+#endif /* > 2.6.18 */
+
+#define pci_enable_device_mem(pdev) pci_enable_device(pdev)
+
+#ifndef DEFINE_PCI_DEVICE_TABLE
+#define DEFINE_PCI_DEVICE_TABLE(_table) struct pci_device_id _table[]
+#endif /* DEFINE_PCI_DEVICE_TABLE */
+
+#ifndef strict_strtol
+#define strict_strtol(s, b, r) _kc_strict_strtol(s, b, r)
+static inline int _kc_strict_strtol(const char *buf, unsigned int base,
+ long *res)
+{
+ /* adapted from strict_strtoul() in 2.6.25 */
+ char *tail;
+ long val;
+ size_t len;
+
+ *res = 0;
+ len = strlen(buf);
+ if (!len)
+ return -EINVAL;
+ val = simple_strtol(buf, &tail, base);
+ if (tail == buf)
+ return -EINVAL;
+ if ((*tail == '\0') ||
+ ((len == (size_t) (tail - buf) + 1) && (*tail == '\n'))) {
+ *res = val;
+ return 0;
+ }
+
+ return -EINVAL;
+}
+#endif
+
+#else /* < 2.6.25 */
+
+#endif /* < 2.6.25 */
+
+/*****************************************************************************/
+#if ( LINUX_VERSION_CODE < KERNEL_VERSION(2,6,26) )
+#ifndef clamp_t
+#define clamp_t(type, val, min, max) ({ \
+ type __val = (val); \
+ type __min = (min); \
+ type __max = (max); \
+ __val = __val < __min ? __min : __val; \
+ __val > __max ? __max : __val; })
+#endif /* clamp_t */
+#undef kzalloc_node
+#define kzalloc_node(_size, _flags, _node) kzalloc(_size, _flags)
+
+void _kc_pci_disable_link_state(struct pci_dev *dev, int state);
+#define pci_disable_link_state(p, s) _kc_pci_disable_link_state(p, s)
+#else /* < 2.6.26 */
+#define NETDEV_CAN_SET_GSO_MAX_SIZE
+#ifdef HAVE_PCI_ASPM_H
+#include <linux/pci-aspm.h>
+#endif
+#define HAVE_NETDEV_VLAN_FEATURES
+#ifndef PCI_EXP_LNKCAP_ASPMS
+#define PCI_EXP_LNKCAP_ASPMS 0x00000c00 /* ASPM Support */
+#endif /* PCI_EXP_LNKCAP_ASPMS */
+#endif /* < 2.6.26 */
+/*****************************************************************************/
+#if ( LINUX_VERSION_CODE < KERNEL_VERSION(2,6,27) )
+static inline void _kc_ethtool_cmd_speed_set(struct ethtool_cmd *ep,
+ __u32 speed)
+{
+ ep->speed = (__u16) speed;
+ /* ep->speed_hi = (__u16)(speed >> 16); */
+}
+
+#define ethtool_cmd_speed_set _kc_ethtool_cmd_speed_set
+
+static inline __u32 _kc_ethtool_cmd_speed(struct ethtool_cmd *ep)
+{
+ /* no speed_hi before 2.6.27, and probably no need for it yet */
+ return (__u32) ep->speed;
+}
+
+#define ethtool_cmd_speed _kc_ethtool_cmd_speed
+
+#if ( LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,15) )
+#if ((LINUX_VERSION_CODE < KERNEL_VERSION(2,6,23)) && defined(CONFIG_PM))
+#define ANCIENT_PM 1
+#elif ((LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,23)) && \
+ (LINUX_VERSION_CODE < KERNEL_VERSION(2,6,26)) && \
+ defined(CONFIG_PM_SLEEP))
+#define NEWER_PM 1
+#endif
+#if defined(ANCIENT_PM) || defined(NEWER_PM)
+#undef device_set_wakeup_enable
+#define device_set_wakeup_enable(dev, val) \
+ do { \
+ u16 pmc = 0; \
+ int pm = pci_find_capability(adapter->pdev, PCI_CAP_ID_PM); \
+ if (pm) { \
+ pci_read_config_word(adapter->pdev, pm + PCI_PM_PMC, \
+ &pmc); \
+ } \
+ (dev)->power.can_wakeup = !!(pmc >> 11); \
+ (dev)->power.should_wakeup = (val && (pmc >> 11)); \
+ } while (0)
+#endif /* 2.6.15-2.6.22 and CONFIG_PM or 2.6.23-2.6.25 and CONFIG_PM_SLEEP */
+#endif /* 2.6.15 through 2.6.27 */
+#ifndef netif_napi_del
+#define netif_napi_del(_a) do {} while (0)
+#ifdef NAPI
+#ifdef CONFIG_NETPOLL
+#undef netif_napi_del
+#define netif_napi_del(_a) list_del(&(_a)->dev_list);
+#endif
+#endif
+#endif /* netif_napi_del */
+#ifdef dma_mapping_error
+#undef dma_mapping_error
+#endif
+#define dma_mapping_error(dev, dma_addr) pci_dma_mapping_error(dma_addr)
+
+#ifndef DMA_ATTR_WEAK_ORDERING
+#define DMA_ATTR_WEAK_ORDERING 0
+#endif
+
+#ifdef HAVE_TX_MQ
+void _kc_netif_tx_stop_all_queues(struct net_device *);
+void _kc_netif_tx_wake_all_queues(struct net_device *);
+void _kc_netif_tx_start_all_queues(struct net_device *);
+#define netif_tx_stop_all_queues(a) _kc_netif_tx_stop_all_queues(a)
+#define netif_tx_wake_all_queues(a) _kc_netif_tx_wake_all_queues(a)
+#define netif_tx_start_all_queues(a) _kc_netif_tx_start_all_queues(a)
+#undef netif_stop_subqueue
+#define netif_stop_subqueue(_ndev,_qi) do { \
+ if (netif_is_multiqueue((_ndev))) \
+ netif_stop_subqueue((_ndev), (_qi)); \
+ else \
+ netif_stop_queue((_ndev)); \
+ } while (0)
+#undef netif_start_subqueue
+#define netif_start_subqueue(_ndev,_qi) do { \
+ if (netif_is_multiqueue((_ndev))) \
+ netif_start_subqueue((_ndev), (_qi)); \
+ else \
+ netif_start_queue((_ndev)); \
+ } while (0)
+#else /* HAVE_TX_MQ */
+#define netif_tx_stop_all_queues(a) netif_stop_queue(a)
+#define netif_tx_wake_all_queues(a) netif_wake_queue(a)
+#if ( LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,12) )
+#define netif_tx_start_all_queues(a) netif_start_queue(a)
+#else
+#define netif_tx_start_all_queues(a) do {} while (0)
+#endif
+#define netif_stop_subqueue(_ndev,_qi) netif_stop_queue((_ndev))
+#define netif_start_subqueue(_ndev,_qi) netif_start_queue((_ndev))
+#endif /* HAVE_TX_MQ */
+#ifndef NETIF_F_MULTI_QUEUE
+#define NETIF_F_MULTI_QUEUE 0
+#define netif_is_multiqueue(a) 0
+#define netif_wake_subqueue(a, b)
+#endif /* NETIF_F_MULTI_QUEUE */
+
+#ifndef __WARN_printf
+void __kc_warn_slowpath(const char *file, const int line,
+ const char *fmt, ...)
+ __attribute__ ((format(printf, 3, 4)));
+#define __WARN_printf(arg...) __kc_warn_slowpath(__FILE__, __LINE__, arg)
+#endif /* __WARN_printf */
+
+#ifndef WARN
+#define WARN(condition, format...) ({ \
+ int __ret_warn_on = !!(condition); \
+ if (unlikely(__ret_warn_on)) \
+ __WARN_printf(format); \
+ unlikely(__ret_warn_on); \
+})
+#endif /* WARN */
+#undef HAVE_IXGBE_DEBUG_FS
+#undef HAVE_IGB_DEBUG_FS
+#else /* < 2.6.27 */
+#define ethtool_cmd_speed_set _kc_ethtool_cmd_speed_set
+static inline void _kc_ethtool_cmd_speed_set(struct ethtool_cmd *ep,
+ __u32 speed)
+{
+ ep->speed = (__u16) (speed & 0xFFFF);
+ ep->speed_hi = (__u16) (speed >> 16);
+}
+
+#define HAVE_TX_MQ
+#define HAVE_NETDEV_SELECT_QUEUE
+#ifdef CONFIG_DEBUG_FS
+#define HAVE_IXGBE_DEBUG_FS
+#define HAVE_IGB_DEBUG_FS
+#endif /* CONFIG_DEBUG_FS */
+#endif /* < 2.6.27 */
+
+/*****************************************************************************/
+#if ( LINUX_VERSION_CODE < KERNEL_VERSION(2,6,28) )
+#define pci_ioremap_bar(pdev, bar) ioremap(pci_resource_start(pdev, bar), \
+ pci_resource_len(pdev, bar))
+#define pci_wake_from_d3 _kc_pci_wake_from_d3
+#define pci_prepare_to_sleep _kc_pci_prepare_to_sleep
+int _kc_pci_wake_from_d3(struct pci_dev *dev, bool enable);
+int _kc_pci_prepare_to_sleep(struct pci_dev *dev);
+#define netdev_alloc_page(a) alloc_page(GFP_ATOMIC)
+#ifndef __skb_queue_head_init
+static inline void __kc_skb_queue_head_init(struct sk_buff_head *list)
+{
+ list->prev = list->next = (struct sk_buff *)list;
+ list->qlen = 0;
+}
+
+#define __skb_queue_head_init(_q) __kc_skb_queue_head_init(_q)
+#endif
+
+#define PCI_EXP_DEVCAP2 36 /* Device Capabilities 2 */
+#define PCI_EXP_DEVCTL2 40 /* Device Control 2 */
+
+#define PCI_EXP_DEVCAP_FLR 0x10000000 /* Function Level Reset */
+#define PCI_EXP_DEVCTL_BCR_FLR 0x8000 /* Bridge Configuration Retry / FLR */
+
+#endif /* < 2.6.28 */
+
+/*****************************************************************************/
+#if ( LINUX_VERSION_CODE < KERNEL_VERSION(2,6,29) )
+#ifndef swap
+#define swap(a, b) \
+ do { typeof(a) __tmp = (a); (a) = (b); (b) = __tmp; } while (0)
+#endif
+#define pci_request_selected_regions_exclusive(pdev, bars, name) \
+ pci_request_selected_regions(pdev, bars, name)
+#ifndef CONFIG_NR_CPUS
+#define CONFIG_NR_CPUS 1
+#endif /* CONFIG_NR_CPUS */
+#ifndef pcie_aspm_enabled
+#define pcie_aspm_enabled() (1)
+#endif /* pcie_aspm_enabled */
+
+#define PCI_EXP_SLTSTA_PDS 0x0040 /* Presence Detect State */
+
+#ifndef PCI_EXP_LNKSTA_CLS
+#define PCI_EXP_LNKSTA_CLS 0x000f /* Current Link Speed */
+#endif
+#ifndef PCI_EXP_LNKSTA_NLW
+#define PCI_EXP_LNKSTA_NLW 0x03f0 /* Negotiated Link Width */
+#endif
+
+#ifndef pci_clear_master
+void _kc_pci_clear_master(struct pci_dev *dev);
+#define pci_clear_master(dev) _kc_pci_clear_master(dev)
+#endif
+
+#ifndef PCI_EXP_LNKCTL_ASPMC
+#define PCI_EXP_LNKCTL_ASPMC 0x0003 /* ASPM Control */
+#endif
+
+#ifndef PCI_EXP_LNKCAP_MLW
+#define PCI_EXP_LNKCAP_MLW 0x000003f0 /* Maximum Link Width */
+#endif
+
+#else /* < 2.6.29 */
+#ifndef HAVE_NET_DEVICE_OPS
+#define HAVE_NET_DEVICE_OPS
+#endif
+#ifdef CONFIG_DCB
+#define HAVE_PFC_MODE_ENABLE
+#endif /* CONFIG_DCB */
+#endif /* < 2.6.29 */
+
+/*****************************************************************************/
+#if ( LINUX_VERSION_CODE < KERNEL_VERSION(2,6,30) )
+#define NO_PTP_SUPPORT
+#define skb_rx_queue_recorded(a) false
+#define skb_get_rx_queue(a) 0
+#define skb_record_rx_queue(a, b) do {} while (0)
+#define skb_tx_hash(n, s) ___kc_skb_tx_hash((n), (s), (n)->real_num_tx_queues)
+#ifndef CONFIG_PCI_IOV
+#undef pci_enable_sriov
+#define pci_enable_sriov(a, b) -ENOTSUPP
+#undef pci_disable_sriov
+#define pci_disable_sriov(a) do {} while (0)
+#endif /* CONFIG_PCI_IOV */
+#ifndef pr_cont
+#define pr_cont(fmt, ...) \
+ printk(KERN_CONT fmt, ##__VA_ARGS__)
+#endif /* pr_cont */
+static inline void _kc_synchronize_irq(unsigned int a)
+{
+#if ( LINUX_VERSION_CODE < KERNEL_VERSION(2,5,28) )
+ synchronize_irq();
+#else /* < 2.5.28 */
+ synchronize_irq(a);
+#endif /* < 2.5.28 */
+}
+
+#undef synchronize_irq
+#define synchronize_irq(a) _kc_synchronize_irq(a)
+
+#define PCI_EXP_LNKCTL2 48 /* Link Control 2 */
+
+#ifdef nr_cpus_node
+#undef nr_cpus_node
+#define nr_cpus_node(node) cpumask_weight(cpumask_of_node(node))
+#endif
+
+#if (RHEL_RELEASE_CODE && RHEL_RELEASE_CODE >= RHEL_RELEASE_VERSION(5,5))
+#define HAVE_PCI_DEV_IS_VIRTFN_BIT
+#endif /* RHEL >= 5.5 */
+
+#if (!(RHEL_RELEASE_CODE && RHEL_RELEASE_CODE >= RHEL_RELEASE_VERSION(5,5)))
+static inline bool pci_is_root_bus(struct pci_bus *pbus)
+{
+ return !(pbus->parent);
+}
+#endif
+
+#else /* < 2.6.30 */
+#define HAVE_ASPM_QUIRKS
+#define HAVE_PCI_DEV_IS_VIRTFN_BIT
+#endif /* < 2.6.30 */
+
+/*****************************************************************************/
+#if ( LINUX_VERSION_CODE < KERNEL_VERSION(2,6,31) )
+#define ETH_P_1588 0x88F7
+#define ETH_P_FIP 0x8914
+#ifndef netdev_uc_count
+#define netdev_uc_count(dev) ((dev)->uc_count)
+#endif
+#ifndef netdev_for_each_uc_addr
+#define netdev_for_each_uc_addr(uclist, dev) \
+ for (uclist = dev->uc_list; uclist; uclist = uclist->next)
+#endif
+#ifndef PORT_OTHER
+#define PORT_OTHER 0xff
+#endif
+#ifndef MDIO_PHY_ID_PRTAD
+#define MDIO_PHY_ID_PRTAD 0x03e0
+#endif
+#ifndef MDIO_PHY_ID_DEVAD
+#define MDIO_PHY_ID_DEVAD 0x001f
+#endif
+#ifndef skb_dst
+#define skb_dst(s) ((s)->dst)
+#endif
+
+#ifndef SUPPORTED_1000baseKX_Full
+#define SUPPORTED_1000baseKX_Full BIT(17)
+#endif
+#ifndef SUPPORTED_10000baseKX4_Full
+#define SUPPORTED_10000baseKX4_Full BIT(18)
+#endif
+#ifndef SUPPORTED_10000baseKR_Full
+#define SUPPORTED_10000baseKR_Full BIT(19)
+#endif
+
+#ifndef ADVERTISED_1000baseKX_Full
+#define ADVERTISED_1000baseKX_Full BIT(17)
+#endif
+#ifndef ADVERTISED_10000baseKX4_Full
+#define ADVERTISED_10000baseKX4_Full BIT(18)
+#endif
+#ifndef ADVERTISED_10000baseKR_Full
+#define ADVERTISED_10000baseKR_Full BIT(19)
+#endif
+
+static inline unsigned long dev_trans_start(struct net_device *dev)
+{
+ return dev->trans_start;
+}
+#else /* < 2.6.31 */
+#ifndef HAVE_NETDEV_STORAGE_ADDRESS
+#define HAVE_NETDEV_STORAGE_ADDRESS
+#endif
+#ifndef HAVE_NETDEV_HW_ADDR
+#define HAVE_NETDEV_HW_ADDR
+#endif
+#ifndef HAVE_TRANS_START_IN_QUEUE
+#define HAVE_TRANS_START_IN_QUEUE
+#endif
+#ifndef HAVE_INCLUDE_LINUX_MDIO_H
+#define HAVE_INCLUDE_LINUX_MDIO_H
+#endif
+#include <linux/mdio.h>
+#endif /* < 2.6.31 */
+
+/*****************************************************************************/
+#if ( LINUX_VERSION_CODE < KERNEL_VERSION(2,6,32) )
+#undef netdev_tx_t
+#define netdev_tx_t int
+#if defined(CONFIG_FCOE) || defined(CONFIG_FCOE_MODULE)
+#ifndef NETIF_F_FCOE_MTU
+#define NETIF_F_FCOE_MTU BIT(26)
+#endif
+#endif /* CONFIG_FCOE || CONFIG_FCOE_MODULE */
+
+#if ( LINUX_VERSION_CODE < KERNEL_VERSION(2,6,0) )
+static inline int _kc_pm_runtime_get_sync()
+{
+ return 1;
+}
+
+#define pm_runtime_get_sync(dev) _kc_pm_runtime_get_sync()
+#else /* 2.6.0 => 2.6.32 */
+static inline int _kc_pm_runtime_get_sync(struct device __always_unused *dev)
+{
+ return 1;
+}
+
+#ifndef pm_runtime_get_sync
+#define pm_runtime_get_sync(dev) _kc_pm_runtime_get_sync(dev)
+#endif
+#endif /* 2.6.0 => 2.6.32 */
+#ifndef pm_runtime_put
+#define pm_runtime_put(dev) do {} while (0)
+#endif
+#ifndef pm_runtime_put_sync
+#define pm_runtime_put_sync(dev) do {} while (0)
+#endif
+#ifndef pm_runtime_resume
+#define pm_runtime_resume(dev) do {} while (0)
+#endif
+#ifndef pm_schedule_suspend
+#define pm_schedule_suspend(dev, t) do {} while (0)
+#endif
+#ifndef pm_runtime_set_suspended
+#define pm_runtime_set_suspended(dev) do {} while (0)
+#endif
+#ifndef pm_runtime_disable
+#define pm_runtime_disable(dev) do {} while (0)
+#endif
+#ifndef pm_runtime_put_noidle
+#define pm_runtime_put_noidle(dev) do {} while (0)
+#endif
+#ifndef pm_runtime_set_active
+#define pm_runtime_set_active(dev) do {} while (0)
+#endif
+#ifndef pm_runtime_enable
+#define pm_runtime_enable(dev) do {} while (0)
+#endif
+#ifndef pm_runtime_get_noresume
+#define pm_runtime_get_noresume(dev) do {} while (0)
+#endif
+#else /* < 2.6.32 */
+#if (RHEL_RELEASE_CODE && \
+ (RHEL_RELEASE_CODE >= RHEL_RELEASE_VERSION(6,2)) && \
+ (RHEL_RELEASE_CODE < RHEL_RELEASE_VERSION(7,0)))
+#define HAVE_RHEL6_NET_DEVICE_EXTENDED
+#endif /* RHEL >= 6.2 && RHEL < 7.0 */
+#if (RHEL_RELEASE_CODE && \
+ (RHEL_RELEASE_CODE >= RHEL_RELEASE_VERSION(6,6)) && \
+ (RHEL_RELEASE_CODE < RHEL_RELEASE_VERSION(7,0)))
+#define HAVE_RHEL6_NET_DEVICE_OPS_EXT
+#define HAVE_NDO_SET_FEATURES
+#endif /* RHEL >= 6.6 && RHEL < 7.0 */
+#if defined(CONFIG_FCOE) || defined(CONFIG_FCOE_MODULE)
+#ifndef HAVE_NETDEV_OPS_FCOE_ENABLE
+#define HAVE_NETDEV_OPS_FCOE_ENABLE
+#endif
+#endif /* CONFIG_FCOE || CONFIG_FCOE_MODULE */
+#ifdef CONFIG_DCB
+#ifndef HAVE_DCBNL_OPS_GETAPP
+#define HAVE_DCBNL_OPS_GETAPP
+#endif
+#endif /* CONFIG_DCB */
+#include <linux/pm_runtime.h>
+/* IOV bad DMA target work arounds require at least this kernel rev support */
+#define HAVE_PCIE_TYPE
+#endif /* < 2.6.32 */
+
+/*****************************************************************************/
+#if ( LINUX_VERSION_CODE < KERNEL_VERSION(2,6,33) )
+#ifndef pci_pcie_cap
+#define pci_pcie_cap(pdev) pci_find_capability(pdev, PCI_CAP_ID_EXP)
+#endif
+#ifndef IPV4_FLOW
+#define IPV4_FLOW 0x10
+#endif /* IPV4_FLOW */
+#ifndef IPV6_FLOW
+#define IPV6_FLOW 0x11
+#endif /* IPV6_FLOW */
+/* Features back-ported to RHEL6 or SLES11 SP1 after 2.6.32 */
+#if ( (RHEL_RELEASE_CODE && RHEL_RELEASE_CODE >= RHEL_RELEASE_VERSION(6,0)) || \
+ (SLE_VERSION_CODE && SLE_VERSION_CODE >= SLE_VERSION(11,1,0)) )
+#if defined(CONFIG_FCOE) || defined(CONFIG_FCOE_MODULE)
+#ifndef HAVE_NETDEV_OPS_FCOE_GETWWN
+#define HAVE_NETDEV_OPS_FCOE_GETWWN
+#endif
+#endif /* CONFIG_FCOE || CONFIG_FCOE_MODULE */
+#endif /* RHEL6 or SLES11 SP1 */
+#ifndef __percpu
+#define __percpu
+#endif /* __percpu */
+
+#ifndef PORT_DA
+#define PORT_DA PORT_OTHER
+#endif /* PORT_DA */
+#ifndef PORT_NONE
+#define PORT_NONE PORT_OTHER
+#endif
+
+#if ((RHEL_RELEASE_CODE && \
+ (RHEL_RELEASE_CODE >= RHEL_RELEASE_VERSION(6,3)) && \
+ (RHEL_RELEASE_CODE < RHEL_RELEASE_VERSION(7,0))))
+#if !defined(CONFIG_X86_32) && !defined(CONFIG_NEED_DMA_MAP_STATE)
+#undef DEFINE_DMA_UNMAP_ADDR
+#define DEFINE_DMA_UNMAP_ADDR(ADDR_NAME) dma_addr_t ADDR_NAME
+#undef DEFINE_DMA_UNMAP_LEN
+#define DEFINE_DMA_UNMAP_LEN(LEN_NAME) __u32 LEN_NAME
+#undef dma_unmap_addr
+#define dma_unmap_addr(PTR, ADDR_NAME) ((PTR)->ADDR_NAME)
+#undef dma_unmap_addr_set
+#define dma_unmap_addr_set(PTR, ADDR_NAME, VAL) (((PTR)->ADDR_NAME) = (VAL))
+#undef dma_unmap_len
+#define dma_unmap_len(PTR, LEN_NAME) ((PTR)->LEN_NAME)
+#undef dma_unmap_len_set
+#define dma_unmap_len_set(PTR, LEN_NAME, VAL) (((PTR)->LEN_NAME) = (VAL))
+#endif /* CONFIG_X86_64 && !CONFIG_NEED_DMA_MAP_STATE */
+#endif /* RHEL_RELEASE_CODE */
+
+#if (!(RHEL_RELEASE_CODE && \
+ (((RHEL_RELEASE_CODE >= RHEL_RELEASE_VERSION(5,8)) && \
+ (RHEL_RELEASE_CODE < RHEL_RELEASE_VERSION(6,0))) || \
+ ((RHEL_RELEASE_CODE >= RHEL_RELEASE_VERSION(6,1)) && \
+ (RHEL_RELEASE_CODE < RHEL_RELEASE_VERSION(7,0))))))
+static inline bool pci_is_pcie(struct pci_dev *dev)
+{
+ return !!pci_pcie_cap(dev);
+}
+#endif /* RHEL_RELEASE_CODE */
+
+#if (!(RHEL_RELEASE_CODE && \
+ (RHEL_RELEASE_CODE >= RHEL_RELEASE_VERSION(6,2))))
+#define sk_tx_queue_get(_sk) (-1)
+#define sk_tx_queue_set(_sk, _tx_queue) do {} while(0)
+#endif /* !(RHEL >= 6.2) */
+
+#if (RHEL_RELEASE_CODE && \
+ (RHEL_RELEASE_CODE >= RHEL_RELEASE_VERSION(6,4)) && \
+ (RHEL_RELEASE_CODE < RHEL_RELEASE_VERSION(7,0)))
+#define HAVE_RHEL6_ETHTOOL_OPS_EXT_STRUCT
+#define HAVE_ETHTOOL_GRXFHINDIR_SIZE
+#define HAVE_ETHTOOL_SET_PHYS_ID
+#define HAVE_ETHTOOL_GET_TS_INFO
+#if (RHEL_RELEASE_CODE > RHEL_RELEASE_VERSION(6,5))
+#define HAVE_ETHTOOL_GSRSSH
+#define HAVE_RHEL6_SRIOV_CONFIGURE
+#define HAVE_RXFH_NONCONST
+#endif /* RHEL > 6.5 */
+#endif /* RHEL >= 6.4 && RHEL < 7.0 */
+
+#else /* < 2.6.33 */
+#if defined(CONFIG_FCOE) || defined(CONFIG_FCOE_MODULE)
+#ifndef HAVE_NETDEV_OPS_FCOE_GETWWN
+#define HAVE_NETDEV_OPS_FCOE_GETWWN
+#endif
+#endif /* CONFIG_FCOE || CONFIG_FCOE_MODULE */
+#endif /* < 2.6.33 */
+
+/*****************************************************************************/
+#if ( LINUX_VERSION_CODE < KERNEL_VERSION(2,6,34) )
+#if (RHEL_RELEASE_CODE < RHEL_RELEASE_VERSION(6,0))
+#ifndef pci_num_vf
+#define pci_num_vf(pdev) _kc_pci_num_vf(pdev)
+int _kc_pci_num_vf(struct pci_dev *dev);
+#endif
+#endif /* RHEL_RELEASE_CODE */
+
+#ifndef dev_is_pci
+#define dev_is_pci(d) ((d)->bus == &pci_bus_type)
+#endif
+
+#ifndef ETH_FLAG_NTUPLE
+#define ETH_FLAG_NTUPLE NETIF_F_NTUPLE
+#endif
+
+#ifndef netdev_mc_count
+#define netdev_mc_count(dev) ((dev)->mc_count)
+#endif
+#ifndef netdev_mc_empty
+#define netdev_mc_empty(dev) (netdev_mc_count(dev) == 0)
+#endif
+#ifndef netdev_for_each_mc_addr
+#define netdev_for_each_mc_addr(mclist, dev) \
+ for (mclist = dev->mc_list; mclist; mclist = mclist->next)
+#endif
+#ifndef netdev_uc_count
+#define netdev_uc_count(dev) ((dev)->uc.count)
+#endif
+#ifndef netdev_uc_empty
+#define netdev_uc_empty(dev) (netdev_uc_count(dev) == 0)
+#endif
+#ifndef netdev_for_each_uc_addr
+#define netdev_for_each_uc_addr(ha, dev) \
+ list_for_each_entry(ha, &dev->uc.list, list)
+#endif
+#ifndef dma_set_coherent_mask
+#define dma_set_coherent_mask(dev,mask) \
+ pci_set_consistent_dma_mask(to_pci_dev(dev),(mask))
+#endif
+#ifndef pci_dev_run_wake
+#define pci_dev_run_wake(pdev) (0)
+#endif
+
+/* netdev logging taken from include/linux/netdevice.h */
+#ifndef netdev_name
+static inline const char *_kc_netdev_name(const struct net_device *dev)
+{
+ if (dev->reg_state != NETREG_REGISTERED)
+ return "(unregistered net_device)";
+ return dev->name;
+}
+
+#define netdev_name(netdev) _kc_netdev_name(netdev)
+#endif /* netdev_name */
+
+#undef netdev_printk
+#if ( LINUX_VERSION_CODE < KERNEL_VERSION(2,6,0) )
+#define netdev_printk(level, netdev, format, args...) \
+do { \
+ struct pci_dev *pdev = _kc_netdev_to_pdev(netdev); \
+ printk(level "%s: " format, pci_name(pdev), ##args); \
+} while(0)
+#elif ( LINUX_VERSION_CODE < KERNEL_VERSION(2,6,21) )
+#define netdev_printk(level, netdev, format, args...) \
+do { \
+ struct pci_dev *pdev = _kc_netdev_to_pdev(netdev); \
+ struct device *dev = pci_dev_to_dev(pdev); \
+ dev_printk(level, dev, "%s: " format, \
+ netdev_name(netdev), ##args); \
+} while(0)
+#else /* 2.6.21 => 2.6.34 */
+#define netdev_printk(level, netdev, format, args...) \
+ dev_printk(level, (netdev)->dev.parent, \
+ "%s: " format, \
+ netdev_name(netdev), ##args)
+#endif /* <2.6.0 <2.6.21 <2.6.34 */
+#undef netdev_emerg
+#define netdev_emerg(dev, format, args...) \
+ netdev_printk(KERN_EMERG, dev, format, ##args)
+#undef netdev_alert
+#define netdev_alert(dev, format, args...) \
+ netdev_printk(KERN_ALERT, dev, format, ##args)
+#undef netdev_crit
+#define netdev_crit(dev, format, args...) \
+ netdev_printk(KERN_CRIT, dev, format, ##args)
+#undef netdev_err
+#define netdev_err(dev, format, args...) \
+ netdev_printk(KERN_ERR, dev, format, ##args)
+#undef netdev_warn
+#define netdev_warn(dev, format, args...) \
+ netdev_printk(KERN_WARNING, dev, format, ##args)
+#undef netdev_notice
+#define netdev_notice(dev, format, args...) \
+ netdev_printk(KERN_NOTICE, dev, format, ##args)
+#undef netdev_info
+#define netdev_info(dev, format, args...) \
+ netdev_printk(KERN_INFO, dev, format, ##args)
+#undef netdev_dbg
+#if defined(CONFIG_DYNAMIC_DEBUG)
+#define netdev_dbg(__dev, format, args...) \
+do { \
+ dynamic_dev_dbg((__dev)->dev.parent, "%s: " format, \
+ netdev_name(__dev), ##args); \
+} while (0)
+#else /* DEBUG */
+#define netdev_dbg(__dev, format, args...) \
+({ \
+ if (0) \
+ netdev_printk(KERN_DEBUG, __dev, format, ##args); \
+ 0; \
+})
+#endif /* DEBUG */
+
+#undef netif_printk
+#define netif_printk(priv, type, level, dev, fmt, args...) \
+do { \
+ if (netif_msg_##type(priv)) \
+ netdev_printk(level, (dev), fmt, ##args); \
+} while (0)
+
+#undef netif_emerg
+#define netif_emerg(priv, type, dev, fmt, args...) \
+ netif_level(emerg, priv, type, dev, fmt, ##args)
+#undef netif_alert
+#define netif_alert(priv, type, dev, fmt, args...) \
+ netif_level(alert, priv, type, dev, fmt, ##args)
+#undef netif_crit
+#define netif_crit(priv, type, dev, fmt, args...) \
+ netif_level(crit, priv, type, dev, fmt, ##args)
+#undef netif_err
+#define netif_err(priv, type, dev, fmt, args...) \
+ netif_level(err, priv, type, dev, fmt, ##args)
+#undef netif_warn
+#define netif_warn(priv, type, dev, fmt, args...) \
+ netif_level(warn, priv, type, dev, fmt, ##args)
+#undef netif_notice
+#define netif_notice(priv, type, dev, fmt, args...) \
+ netif_level(notice, priv, type, dev, fmt, ##args)
+#undef netif_info
+#define netif_info(priv, type, dev, fmt, args...) \
+ netif_level(info, priv, type, dev, fmt, ##args)
+#undef netif_dbg
+#define netif_dbg(priv, type, dev, fmt, args...) \
+ netif_level(dbg, priv, type, dev, fmt, ##args)
+
+#ifdef SET_SYSTEM_SLEEP_PM_OPS
+#define HAVE_SYSTEM_SLEEP_PM_OPS
+#endif
+
+#ifndef for_each_set_bit
+#define for_each_set_bit(bit, addr, size) \
+ for ((bit) = find_first_bit((addr), (size)); \
+ (bit) < (size); \
+ (bit) = find_next_bit((addr), (size), (bit) + 1))
+#endif /* for_each_set_bit */
+
+#ifndef DEFINE_DMA_UNMAP_ADDR
+#define DEFINE_DMA_UNMAP_ADDR DECLARE_PCI_UNMAP_ADDR
+#define DEFINE_DMA_UNMAP_LEN DECLARE_PCI_UNMAP_LEN
+#define dma_unmap_addr pci_unmap_addr
+#define dma_unmap_addr_set pci_unmap_addr_set
+#define dma_unmap_len pci_unmap_len
+#define dma_unmap_len_set pci_unmap_len_set
+#endif /* DEFINE_DMA_UNMAP_ADDR */
+
+#if (RHEL_RELEASE_CODE < RHEL_RELEASE_VERSION(6,3))
+#ifdef IGB_HWMON
+#ifdef CONFIG_DEBUG_LOCK_ALLOC
+#define sysfs_attr_init(attr) \
+ do { \
+ static struct lock_class_key __key; \
+ (attr)->key = &__key; \
+ } while (0)
+#else
+#define sysfs_attr_init(attr) do {} while (0)
+#endif /* CONFIG_DEBUG_LOCK_ALLOC */
+#endif /* IGB_HWMON */
+#endif /* RHEL_RELEASE_CODE */
+
+#if ( LINUX_VERSION_CODE < KERNEL_VERSION(2,6,0) )
+static inline bool _kc_pm_runtime_suspended()
+{
+ return false;
+}
+
+#define pm_runtime_suspended(dev) _kc_pm_runtime_suspended()
+#else /* 2.6.0 => 2.6.34 */
+static inline bool _kc_pm_runtime_suspended(struct device __always_unused *dev)
+{
+ return false;
+}
+
+#ifndef pm_runtime_suspended
+#define pm_runtime_suspended(dev) _kc_pm_runtime_suspended(dev)
+#endif
+#endif /* 2.6.0 => 2.6.34 */
+
+#ifndef pci_bus_speed
+/* override pci_bus_speed introduced in 2.6.19 with an expanded enum type */
+enum _kc_pci_bus_speed {
+ _KC_PCIE_SPEED_2_5GT = 0x14,
+ _KC_PCIE_SPEED_5_0GT = 0x15,
+ _KC_PCIE_SPEED_8_0GT = 0x16,
+ _KC_PCI_SPEED_UNKNOWN = 0xff,
+};
+#define pci_bus_speed _kc_pci_bus_speed
+#define PCIE_SPEED_2_5GT _KC_PCIE_SPEED_2_5GT
+#define PCIE_SPEED_5_0GT _KC_PCIE_SPEED_5_0GT
+#define PCIE_SPEED_8_0GT _KC_PCIE_SPEED_8_0GT
+#define PCI_SPEED_UNKNOWN _KC_PCI_SPEED_UNKNOWN
+#endif /* pci_bus_speed */
+
+#else /* < 2.6.34 */
+#define HAVE_SYSTEM_SLEEP_PM_OPS
+#ifndef HAVE_SET_RX_MODE
+#define HAVE_SET_RX_MODE
+#endif
+
+#endif /* < 2.6.34 */
+
+/*****************************************************************************/
+#if ( LINUX_VERSION_CODE < KERNEL_VERSION(2,6,35) )
+ssize_t _kc_simple_write_to_buffer(void *to, size_t available, loff_t * ppos,
+ const void __user * from, size_t count);
+#define simple_write_to_buffer _kc_simple_write_to_buffer
+
+#if (!(RHEL_RELEASE_CODE && RHEL_RELEASE_CODE >= RHEL_RELEASE_VERSION(6,4)))
+static inline struct pci_dev *pci_physfn(struct pci_dev *dev)
+{
+#ifdef HAVE_PCI_DEV_IS_VIRTFN_BIT
+#ifdef CONFIG_PCI_IOV
+ if (dev->is_virtfn)
+ dev = dev->physfn;
+#endif /* CONFIG_PCI_IOV */
+#endif /* HAVE_PCI_DEV_IS_VIRTFN_BIT */
+ return dev;
+}
+#endif /* ! RHEL >= 6.4 */
+
+#ifndef PCI_EXP_LNKSTA_NLW_SHIFT
+#define PCI_EXP_LNKSTA_NLW_SHIFT 4
+#endif
+
+#ifndef numa_node_id
+#define numa_node_id() 0
+#endif
+#ifndef numa_mem_id
+#define numa_mem_id numa_node_id
+#endif
+#if (!(RHEL_RELEASE_CODE && RHEL_RELEASE_CODE >= RHEL_RELEASE_VERSION(6,0)))
+#ifdef HAVE_TX_MQ
+#include <net/sch_generic.h>
+#ifndef CONFIG_NETDEVICES_MULTIQUEUE
+int _kc_netif_set_real_num_tx_queues(struct net_device *, unsigned int);
+#else /* CONFIG_NETDEVICES_MULTI_QUEUE */
+static inline int _kc_netif_set_real_num_tx_queues(struct net_device *dev,
+ unsigned int txq)
+{
+ dev->egress_subqueue_count = txq;
+ return 0;
+}
+#endif /* CONFIG_NETDEVICES_MULTI_QUEUE */
+#else /* HAVE_TX_MQ */
+static inline int _kc_netif_set_real_num_tx_queues(struct net_device
+ __always_unused *dev,
+ unsigned int __always_unused
+ txq)
+{
+ return 0;
+}
+#endif /* HAVE_TX_MQ */
+#define netif_set_real_num_tx_queues(dev, txq) \
+ _kc_netif_set_real_num_tx_queues(dev, txq)
+#endif /* !(RHEL_RELEASE_CODE >= RHEL_RELEASE_VERSION(6,0)) */
+#ifndef ETH_FLAG_RXHASH
+#define ETH_FLAG_RXHASH (1<<28)
+#endif /* ETH_FLAG_RXHASH */
+#if (RHEL_RELEASE_CODE && RHEL_RELEASE_CODE >= RHEL_RELEASE_VERSION(6,0))
+#define HAVE_IRQ_AFFINITY_HINT
+#endif
+struct device_node;
+#else /* < 2.6.35 */
+#define HAVE_STRUCT_DEVICE_OF_NODE
+#define HAVE_PM_QOS_REQUEST_LIST
+#define HAVE_IRQ_AFFINITY_HINT
+#include <linux/of.h>
+#endif /* < 2.6.35 */
+
+/*****************************************************************************/
+#if ( LINUX_VERSION_CODE < KERNEL_VERSION(2,6,36) )
+int _kc_ethtool_op_set_flags(struct net_device *, u32, u32);
+#define ethtool_op_set_flags _kc_ethtool_op_set_flags
+u32 _kc_ethtool_op_get_flags(struct net_device *);
+#define ethtool_op_get_flags _kc_ethtool_op_get_flags
+
+enum {
+ WQ_UNBOUND = 0,
+ WQ_RESCUER = 0,
+};
+
+#ifdef CONFIG_HAVE_EFFICIENT_UNALIGNED_ACCESS
+#ifdef NET_IP_ALIGN
+#undef NET_IP_ALIGN
+#endif
+#define NET_IP_ALIGN 0
+#endif /* CONFIG_HAVE_EFFICIENT_UNALIGNED_ACCESS */
+
+#ifdef NET_SKB_PAD
+#undef NET_SKB_PAD
+#endif
+
+#if (L1_CACHE_BYTES > 32)
+#define NET_SKB_PAD L1_CACHE_BYTES
+#else
+#define NET_SKB_PAD 32
+#endif
+
+static inline struct sk_buff *_kc_netdev_alloc_skb_ip_align(struct net_device
+ *dev,
+ unsigned int length)
+{
+ struct sk_buff *skb;
+
+ skb = alloc_skb(length + NET_SKB_PAD + NET_IP_ALIGN, GFP_ATOMIC);
+ if (skb) {
+#if (NET_IP_ALIGN + NET_SKB_PAD)
+ skb_reserve(skb, NET_IP_ALIGN + NET_SKB_PAD);
+#endif
+ skb->dev = dev;
+ }
+ return skb;
+}
+
+#ifdef netdev_alloc_skb_ip_align
+#undef netdev_alloc_skb_ip_align
+#endif
+#define netdev_alloc_skb_ip_align(n, l) _kc_netdev_alloc_skb_ip_align(n, l)
+
+#undef netif_level
+#define netif_level(level, priv, type, dev, fmt, args...) \
+do { \
+ if (netif_msg_##type(priv)) \
+ netdev_##level(dev, fmt, ##args); \
+} while (0)
+
+#if (!(RHEL_RELEASE_CODE && RHEL_RELEASE_CODE >= RHEL_RELEASE_VERSION(6,3)))
+#undef usleep_range
+#define usleep_range(min, max) msleep(DIV_ROUND_UP(min, 1000))
+#endif
+
+#define u64_stats_update_begin(a) do { } while(0)
+#define u64_stats_update_end(a) do { } while(0)
+#define u64_stats_fetch_begin(a) do { } while(0)
+#define u64_stats_fetch_retry_bh(a,b) (0)
+#define u64_stats_fetch_begin_bh(a) (0)
+
+#if (RHEL_RELEASE_CODE && RHEL_RELEASE_CODE >= RHEL_RELEASE_VERSION(6,1))
+#define HAVE_8021P_SUPPORT
+#endif
+
+/* RHEL6.4 and SLES11sp2 backported skb_tx_timestamp */
+#if (!(RHEL_RELEASE_CODE >= RHEL_RELEASE_VERSION(6,4)) && \
+ !(SLE_VERSION_CODE >= SLE_VERSION(11,2,0)))
+static inline void skb_tx_timestamp(struct sk_buff __always_unused *skb)
+{
+ return;
+}
+#endif
+
+#else /* < 2.6.36 */
+
+#define HAVE_PM_QOS_REQUEST_ACTIVE
+#define HAVE_8021P_SUPPORT
+#define HAVE_NDO_GET_STATS64
+#endif /* < 2.6.36 */
+
+/*****************************************************************************/
+#if ( LINUX_VERSION_CODE < KERNEL_VERSION(2,6,37) )
+#define HAVE_NON_CONST_PCI_DRIVER_NAME
+#ifndef netif_set_real_num_tx_queues
+static inline int _kc_netif_set_real_num_tx_queues(struct net_device *dev,
+ unsigned int txq)
+{
+ netif_set_real_num_tx_queues(dev, txq);
+ return 0;
+}
+
+#define netif_set_real_num_tx_queues(dev, txq) \
+ _kc_netif_set_real_num_tx_queues(dev, txq)
+#endif
+#ifndef netif_set_real_num_rx_queues
+static inline int __kc_netif_set_real_num_rx_queues(struct net_device
+ __always_unused *dev,
+ unsigned int __always_unused
+ rxq)
+{
+ return 0;
+}
+
+#define netif_set_real_num_rx_queues(dev, rxq) \
+ __kc_netif_set_real_num_rx_queues((dev), (rxq))
+#endif
+#ifndef ETHTOOL_RXNTUPLE_ACTION_CLEAR
+#define ETHTOOL_RXNTUPLE_ACTION_CLEAR (-2)
+#endif
+#ifndef VLAN_N_VID
+#define VLAN_N_VID VLAN_GROUP_ARRAY_LEN
+#endif /* VLAN_N_VID */
+#ifndef ETH_FLAG_TXVLAN
+#define ETH_FLAG_TXVLAN BIT(7)
+#endif /* ETH_FLAG_TXVLAN */
+#ifndef ETH_FLAG_RXVLAN
+#define ETH_FLAG_RXVLAN BIT(8)
+#endif /* ETH_FLAG_RXVLAN */
+
+#define WQ_MEM_RECLAIM WQ_RESCUER
+
+static inline void _kc_skb_checksum_none_assert(struct sk_buff *skb)
+{
+ WARN_ON(skb->ip_summed != CHECKSUM_NONE);
+}
+
+#define skb_checksum_none_assert(skb) _kc_skb_checksum_none_assert(skb)
+
+static inline void *_kc_vzalloc_node(unsigned long size, int node)
+{
+ void *addr = vmalloc_node(size, node);
+ if (addr)
+ memset(addr, 0, size);
+ return addr;
+}
+
+#define vzalloc_node(_size, _node) _kc_vzalloc_node(_size, _node)
+
+static inline void *_kc_vzalloc(unsigned long size)
+{
+ void *addr = vmalloc(size);
+ if (addr)
+ memset(addr, 0, size);
+ return addr;
+}
+
+#define vzalloc(_size) _kc_vzalloc(_size)
+
+#if (!(RHEL_RELEASE_CODE >= RHEL_RELEASE_VERSION(5,7)) || \
+ (RHEL_RELEASE_CODE == RHEL_RELEASE_VERSION(6,0)))
+static inline __be16 vlan_get_protocol(const struct sk_buff *skb)
+{
+ if (vlan_tx_tag_present(skb) ||
+ skb->protocol != cpu_to_be16(ETH_P_8021Q))
+ return skb->protocol;
+
+ if (skb_headlen(skb) < sizeof(struct vlan_ethhdr))
+ return 0;
+
+ return ((struct vlan_ethhdr *)skb->data)->h_vlan_encapsulated_proto;
+}
+#endif /* !RHEL5.7+ || RHEL6.0 */
+
+#ifdef HAVE_HW_TIME_STAMP
+#define SKBTX_HW_TSTAMP BIT(0)
+#define SKBTX_IN_PROGRESS BIT(2)
+#define SKB_SHARED_TX_IS_UNION
+#endif
+
+#ifndef device_wakeup_enable
+#define device_wakeup_enable(dev) device_set_wakeup_enable(dev, true)
+#endif
+
+#if ( LINUX_VERSION_CODE > KERNEL_VERSION(2,4,18) )
+#ifndef HAVE_VLAN_RX_REGISTER
+#define HAVE_VLAN_RX_REGISTER
+#endif
+#endif /* > 2.4.18 */
+#endif /* < 2.6.37 */
+
+/*****************************************************************************/
+#if ( LINUX_VERSION_CODE < KERNEL_VERSION(2,6,38) )
+#if ( LINUX_VERSION_CODE < KERNEL_VERSION(2,6,22) )
+#define skb_checksum_start_offset(skb) skb_transport_offset(skb)
+#else /* 2.6.22 -> 2.6.37 */
+static inline int _kc_skb_checksum_start_offset(const struct sk_buff *skb)
+{
+ return skb->csum_start - skb_headroom(skb);
+}
+
+#define skb_checksum_start_offset(skb) _kc_skb_checksum_start_offset(skb)
+#endif /* 2.6.22 -> 2.6.37 */
+#if IS_ENABLED(CONFIG_DCB)
+#ifndef IEEE_8021QAZ_MAX_TCS
+#define IEEE_8021QAZ_MAX_TCS 8
+#endif
+#ifndef DCB_CAP_DCBX_HOST
+#define DCB_CAP_DCBX_HOST 0x01
+#endif
+#ifndef DCB_CAP_DCBX_LLD_MANAGED
+#define DCB_CAP_DCBX_LLD_MANAGED 0x02
+#endif
+#ifndef DCB_CAP_DCBX_VER_CEE
+#define DCB_CAP_DCBX_VER_CEE 0x04
+#endif
+#ifndef DCB_CAP_DCBX_VER_IEEE
+#define DCB_CAP_DCBX_VER_IEEE 0x08
+#endif
+#ifndef DCB_CAP_DCBX_STATIC
+#define DCB_CAP_DCBX_STATIC 0x10
+#endif
+#endif /* CONFIG_DCB */
+#if (RHEL_RELEASE_CODE >= RHEL_RELEASE_VERSION(6,2))
+#define CONFIG_XPS
+#endif /* RHEL_RELEASE_VERSION(6,2) */
+#endif /* < 2.6.38 */
+
+/*****************************************************************************/
+#if ( LINUX_VERSION_CODE < KERNEL_VERSION(2,6,39) )
+#ifndef TC_BITMASK
+#define TC_BITMASK 15
+#endif
+#ifndef NETIF_F_RXCSUM
+#define NETIF_F_RXCSUM BIT(29)
+#endif
+#ifndef skb_queue_reverse_walk_safe
+#define skb_queue_reverse_walk_safe(queue, skb, tmp) \
+ for (skb = (queue)->prev, tmp = skb->prev; \
+ skb != (struct sk_buff *)(queue); \
+ skb = tmp, tmp = skb->prev)
+#endif
+
+#ifndef udp_csum
+#define udp_csum __kc_udp_csum
+static inline __wsum __kc_udp_csum(struct sk_buff *skb)
+{
+ __wsum csum = csum_partial(skb_transport_header(skb),
+ sizeof(struct udphdr), skb->csum);
+
+ for (skb = skb_shinfo(skb)->frag_list; skb; skb = skb->next) {
+ csum = csum_add(csum, skb->csum);
+ }
+ return csum;
+}
+#endif /* udp_csum */
+#else /* < 2.6.39 */
+#if defined(CONFIG_FCOE) || defined(CONFIG_FCOE_MODULE)
+#ifndef HAVE_NETDEV_OPS_FCOE_DDP_TARGET
+#define HAVE_NETDEV_OPS_FCOE_DDP_TARGET
+#endif
+#endif /* CONFIG_FCOE || CONFIG_FCOE_MODULE */
+#ifndef HAVE_MQPRIO
+#define HAVE_MQPRIO
+#endif
+#ifndef HAVE_SETUP_TC
+#define HAVE_SETUP_TC
+#endif
+#ifdef CONFIG_DCB
+#ifndef HAVE_DCBNL_IEEE
+#define HAVE_DCBNL_IEEE
+#endif
+#endif /* CONFIG_DCB */
+#ifndef HAVE_NDO_SET_FEATURES
+#define HAVE_NDO_SET_FEATURES
+#endif
+#define HAVE_IRQ_AFFINITY_NOTIFY
+#endif /* < 2.6.39 */
+
+/*****************************************************************************/
+/* use < 2.6.40 because of a Fedora 15 kernel update where they
+ * updated the kernel version to 2.6.40.x and they back-ported 3.0 features
+ * like set_phys_id for ethtool.
+ */
+#if ( LINUX_VERSION_CODE < KERNEL_VERSION(2,6,40) )
+#ifdef ETHTOOL_GRXRINGS
+#ifndef FLOW_EXT
+#define FLOW_EXT 0x80000000
+union _kc_ethtool_flow_union {
+ struct ethtool_tcpip4_spec tcp_ip4_spec;
+ struct ethtool_usrip4_spec usr_ip4_spec;
+ __u8 hdata[60];
+};
+struct _kc_ethtool_flow_ext {
+ __be16 vlan_etype;
+ __be16 vlan_tci;
+ __be32 data[2];
+};
+struct _kc_ethtool_rx_flow_spec {
+ __u32 flow_type;
+ union _kc_ethtool_flow_union h_u;
+ struct _kc_ethtool_flow_ext h_ext;
+ union _kc_ethtool_flow_union m_u;
+ struct _kc_ethtool_flow_ext m_ext;
+ __u64 ring_cookie;
+ __u32 location;
+};
+#define ethtool_rx_flow_spec _kc_ethtool_rx_flow_spec
+#endif /* FLOW_EXT */
+#endif
+
+#define pci_disable_link_state_locked pci_disable_link_state
+
+#ifndef PCI_LTR_VALUE_MASK
+#define PCI_LTR_VALUE_MASK 0x000003ff
+#endif
+#ifndef PCI_LTR_SCALE_MASK
+#define PCI_LTR_SCALE_MASK 0x00001c00
+#endif
+#ifndef PCI_LTR_SCALE_SHIFT
+#define PCI_LTR_SCALE_SHIFT 10
+#endif
+
+#else /* < 2.6.40 */
+#define HAVE_ETHTOOL_SET_PHYS_ID
+#endif /* < 2.6.40 */
+
+/*****************************************************************************/
+#if ( LINUX_VERSION_CODE < KERNEL_VERSION(3,0,0) )
+#define USE_LEGACY_PM_SUPPORT
+#ifndef kfree_rcu
+#define kfree_rcu(_ptr, _rcu_head) kfree(_ptr)
+#endif /* kfree_rcu */
+
+#if (RHEL_RELEASE_CODE && (RHEL_RELEASE_CODE > RHEL_RELEASE_VERSION(7,0) || \
+ RHEL_RELEASE_CODE < RHEL_RELEASE_VERSION(5,7)))
+/* 20000base_blah_full Supported and Advertised Registers */
+#define SUPPORTED_20000baseMLD2_Full BIT(21)
+#define SUPPORTED_20000baseKR2_Full BIT(22)
+#define ADVERTISED_20000baseMLD2_Full BIT(21)
+#define ADVERTISED_20000baseKR2_Full BIT(22)
+#endif /* RHEL_RELEASE_CODE */
+#endif /* < 3.0.0 */
+
+/*****************************************************************************/
+#if ( LINUX_VERSION_CODE < KERNEL_VERSION(3,1,0) )
+#ifndef __netdev_alloc_skb_ip_align
+#define __netdev_alloc_skb_ip_align(d,l,_g) netdev_alloc_skb_ip_align(d,l)
+#endif /* __netdev_alloc_skb_ip_align */
+#define dcb_ieee_setapp(dev, app) dcb_setapp(dev, app)
+#define dcb_ieee_delapp(dev, app) 0
+#define dcb_ieee_getapp_mask(dev, app) (1 << app->priority)
+
+/* 1000BASE-T Control register */
+#define CTL1000_AS_MASTER 0x0800
+#define CTL1000_ENABLE_MASTER 0x1000
+
+/* kernels less than 3.0.0 don't have this */
+#ifndef ETH_P_8021AD
+#define ETH_P_8021AD 0x88A8
+#endif
+
+/* Stub definition for !CONFIG_OF is introduced later */
+#ifdef CONFIG_OF
+static inline struct device_node *pci_device_to_OF_node(struct pci_dev
+ __maybe_unused * pdev)
+{
+#ifdef HAVE_STRUCT_DEVICE_OF_NODE
+ return pdev ? pdev->dev.of_node : NULL;
+#else
+ return NULL;
+#endif /* !HAVE_STRUCT_DEVICE_OF_NODE */
+}
+#endif /* CONFIG_OF */
+#else /* < 3.1.0 */
+#ifndef HAVE_DCBNL_IEEE_DELAPP
+#define HAVE_DCBNL_IEEE_DELAPP
+#endif
+#endif /* < 3.1.0 */
+
+/*****************************************************************************/
+#if ( LINUX_VERSION_CODE < KERNEL_VERSION(3,2,0) )
+#ifndef dma_zalloc_coherent
+#define dma_zalloc_coherent(d, s, h, f) _kc_dma_zalloc_coherent(d, s, h, f)
+static inline void *_kc_dma_zalloc_coherent(struct device *dev, size_t size,
+ dma_addr_t * dma_handle, gfp_t flag)
+{
+ void *ret = dma_alloc_coherent(dev, size, dma_handle, flag);
+ if (ret)
+ memset(ret, 0, size);
+ return ret;
+}
+#endif
+#ifdef ETHTOOL_GRXRINGS
+#define HAVE_ETHTOOL_GET_RXNFC_VOID_RULE_LOCS
+#endif /* ETHTOOL_GRXRINGS */
+
+#ifndef skb_frag_size
+#define skb_frag_size(frag) _kc_skb_frag_size(frag)
+static inline unsigned int _kc_skb_frag_size(const skb_frag_t * frag)
+{
+ return frag->size;
+}
+#endif /* skb_frag_size */
+
+#ifndef skb_frag_size_sub
+#define skb_frag_size_sub(frag, delta) _kc_skb_frag_size_sub(frag, delta)
+static inline void _kc_skb_frag_size_sub(skb_frag_t * frag, int delta)
+{
+ frag->size -= delta;
+}
+#endif /* skb_frag_size_sub */
+
+#ifndef skb_frag_page
+#define skb_frag_page(frag) _kc_skb_frag_page(frag)
+static inline struct page *_kc_skb_frag_page(const skb_frag_t * frag)
+{
+ return frag->page;
+}
+#endif /* skb_frag_page */
+
+#ifndef skb_frag_address
+#define skb_frag_address(frag) _kc_skb_frag_address(frag)
+static inline void *_kc_skb_frag_address(const skb_frag_t * frag)
+{
+ return page_address(skb_frag_page(frag)) + frag->page_offset;
+}
+#endif /* skb_frag_address */
+
+#ifndef skb_frag_dma_map
+#if ( LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,0) )
+#include <linux/dma-mapping.h>
+#endif
+#define skb_frag_dma_map(dev,frag,offset,size,dir) \
+ _kc_skb_frag_dma_map(dev,frag,offset,size,dir)
+static inline dma_addr_t _kc_skb_frag_dma_map(struct device *dev,
+ const skb_frag_t * frag,
+ size_t offset, size_t size,
+ enum dma_data_direction dir)
+{
+ return dma_map_page(dev, skb_frag_page(frag),
+ frag->page_offset + offset, size, dir);
+}
+#endif /* skb_frag_dma_map */
+
+#ifndef __skb_frag_unref
+#define __skb_frag_unref(frag) __kc_skb_frag_unref(frag)
+static inline void __kc_skb_frag_unref(skb_frag_t * frag)
+{
+ put_page(skb_frag_page(frag));
+}
+#endif /* __skb_frag_unref */
+
+#ifndef SPEED_UNKNOWN
+#define SPEED_UNKNOWN -1
+#endif
+#ifndef DUPLEX_UNKNOWN
+#define DUPLEX_UNKNOWN 0xff
+#endif
+#if ((RHEL_RELEASE_CODE >= RHEL_RELEASE_VERSION(6,3)) ||\
+ (SLE_VERSION_CODE && SLE_VERSION_CODE >= SLE_VERSION(11,3,0)))
+#ifndef HAVE_PCI_DEV_FLAGS_ASSIGNED
+#define HAVE_PCI_DEV_FLAGS_ASSIGNED
+#endif
+#endif
+#else /* < 3.2.0 */
+#ifndef HAVE_PCI_DEV_FLAGS_ASSIGNED
+#define HAVE_PCI_DEV_FLAGS_ASSIGNED
+#define HAVE_VF_SPOOFCHK_CONFIGURE
+#endif
+#ifndef HAVE_SKB_L4_RXHASH
+#define HAVE_SKB_L4_RXHASH
+#endif
+#define HAVE_IOMMU_PRESENT
+#define HAVE_PM_QOS_REQUEST_LIST_NEW
+#endif /* < 3.2.0 */
+
+#if (RHEL_RELEASE_CODE && RHEL_RELEASE_CODE == RHEL_RELEASE_VERSION(6,2))
+#undef ixgbe_get_netdev_tc_txq
+#define ixgbe_get_netdev_tc_txq(dev, tc) (&netdev_extended(dev)->qos_data.tc_to_txq[tc])
+#endif
+/*****************************************************************************/
+#if ( LINUX_VERSION_CODE < KERNEL_VERSION(3,3,0) )
+/* NOTE: the order of parameters to _kc_alloc_workqueue() is different than
+ * alloc_workqueue() to avoid compiler warning from -Wvarargs
+ */
+static inline struct workqueue_struct * __attribute__ ((format(printf, 3, 4)))
+ _kc_alloc_workqueue(__maybe_unused int flags, __maybe_unused int max_active,
+ const char *fmt, ...)
+{
+ struct workqueue_struct *wq;
+ va_list args, temp;
+ unsigned int len;
+ char *p;
+
+ va_start(args, fmt);
+ va_copy(temp, args);
+ len = vsnprintf(NULL, 0, fmt, temp);
+ va_end(temp);
+
+ p = kmalloc(len + 1, GFP_KERNEL);
+ if (!p) {
+ va_end(args);
+ return NULL;
+ }
+
+ vsnprintf(p, len + 1, fmt, args);
+ va_end(args);
+#if ( LINUX_VERSION_CODE < KERNEL_VERSION(2,6,36) )
+ wq = create_workqueue(p);
+#else
+ wq = alloc_workqueue(p, flags, max_active);
+#endif
+ kfree(p);
+
+ return wq;
+}
+
+#ifdef alloc_workqueue
+#undef alloc_workqueue
+#endif
+#define alloc_workqueue(fmt, flags, max_active, args...) \
+ _kc_alloc_workqueue(flags, max_active, fmt, ##args)
+
+#if !(RHEL_RELEASE_CODE >= RHEL_RELEASE_VERSION(6,5))
+typedef u32 netdev_features_t;
+#endif
+#undef PCI_EXP_TYPE_RC_EC
+#define PCI_EXP_TYPE_RC_EC 0xa /* Root Complex Event Collector */
+#ifndef CONFIG_BQL
+#define netdev_tx_completed_queue(_q, _p, _b) do {} while (0)
+#define netdev_completed_queue(_n, _p, _b) do {} while (0)
+#define netdev_tx_sent_queue(_q, _b) do {} while (0)
+#define netdev_sent_queue(_n, _b) do {} while (0)
+#define netdev_tx_reset_queue(_q) do {} while (0)
+#define netdev_reset_queue(_n) do {} while (0)
+#endif
+#if (SLE_VERSION_CODE && SLE_VERSION_CODE >= SLE_VERSION(11,3,0))
+#define HAVE_ETHTOOL_GRXFHINDIR_SIZE
+#endif /* SLE_VERSION(11,3,0) */
+#define netif_xmit_stopped(_q) netif_tx_queue_stopped(_q)
+#if !(SLE_VERSION_CODE && SLE_VERSION_CODE >= SLE_VERSION(11,4,0))
+static inline int __kc_ipv6_skip_exthdr(const struct sk_buff *skb, int start,
+ u8 *nexthdrp,
+ __be16 __always_unused *frag_offp)
+{
+ return ipv6_skip_exthdr(skb, start, nexthdrp);
+}
+
+#undef ipv6_skip_exthdr
+#define ipv6_skip_exthdr(a,b,c,d) __kc_ipv6_skip_exthdr((a), (b), (c), (d))
+#endif /* !SLES11sp4 or greater */
+
+#if (!(RHEL_RELEASE_CODE >= RHEL_RELEASE_VERSION(6,4)) && \
+ !(SLE_VERSION_CODE >= SLE_VERSION(11,3,0)))
+static inline u32 ethtool_rxfh_indir_default(u32 index, u32 n_rx_rings)
+{
+ return index % n_rx_rings;
+}
+#endif
+
+#else /* ! < 3.3.0 */
+#define HAVE_ETHTOOL_GRXFHINDIR_SIZE
+#define HAVE_INT_NDO_VLAN_RX_ADD_VID
+#ifdef ETHTOOL_SRXNTUPLE
+#undef ETHTOOL_SRXNTUPLE
+#endif
+#endif /* < 3.3.0 */
+
+/*****************************************************************************/
+#if ( LINUX_VERSION_CODE < KERNEL_VERSION(3,4,0) )
+#ifndef NETIF_F_RXFCS
+#define NETIF_F_RXFCS 0
+#endif /* NETIF_F_RXFCS */
+#ifndef NETIF_F_RXALL
+#define NETIF_F_RXALL 0
+#endif /* NETIF_F_RXALL */
+
+#if !(SLE_VERSION_CODE && SLE_VERSION_CODE >= SLE_VERSION(11,3,0))
+#define NUMTCS_RETURNS_U8
+
+int _kc_simple_open(struct inode *inode, struct file *file);
+#define simple_open _kc_simple_open
+#endif /* !(SLE_VERSION_CODE && SLE_VERSION_CODE >= SLE_VERSION(11,3,0)) */
+
+#include <linux/highmem.h>
+static inline void *_kc_kmap_atomic(struct page *page)
+{
+ return kmap_atomic(page, KM_SKB_DATA_SOFTIRQ);
+}
+
+#undef kmap_atomic
+#define kmap_atomic(page) _kc_kmap_atomic((page))
+
+static inline void _kc_kunmap_atomic(void *addr)
+{
+ kunmap_atomic(addr, KM_SKB_DATA_SOFTIRQ);
+}
+
+#undef kunmap_atomic
+#define kunmap_atomic(addr) _kc_kunmap_atomic((addr))
+
+#ifndef skb_add_rx_frag
+#define skb_add_rx_frag _kc_skb_add_rx_frag
+void _kc_skb_add_rx_frag(struct sk_buff *skb, int i, struct page *page,
+ int off, int size, unsigned int truesize);
+#endif
+#ifdef NET_ADDR_RANDOM
+#define eth_hw_addr_random(N) do { \
+ eth_random_addr(N->dev_addr); \
+ N->addr_assign_type |= NET_ADDR_RANDOM; \
+ } while (0)
+#else /* NET_ADDR_RANDOM */
+#define eth_hw_addr_random(N) eth_random_addr(N->dev_addr)
+#endif /* NET_ADDR_RANDOM */
+
+#ifndef for_each_set_bit_from
+#define for_each_set_bit_from(bit, addr, size) \
+ for ((bit) = find_next_bit((addr), (size), (bit)); \
+ (bit) < (size); \
+ (bit) = find_next_bit((addr), (size), (bit) + 1))
+#endif /* for_each_set_bit_from */
+
+#else /* < 3.4.0 */
+#include <linux/kconfig.h>
+#endif /* >= 3.4.0 */
+
+/*****************************************************************************/
+#if ( LINUX_VERSION_CODE >= KERNEL_VERSION(3,0,0) ) || \
+ ( RHEL_RELEASE_CODE >= RHEL_RELEASE_VERSION(6,4) )
+#if !defined(NO_PTP_SUPPORT) && IS_ENABLED(CONFIG_PTP_1588_CLOCK)
+#define HAVE_PTP_1588_CLOCK
+#endif /* !NO_PTP_SUPPORT && IS_ENABLED(CONFIG_PTP_1588_CLOCK) */
+#endif /* >= 3.0.0 || RHEL_RELEASE > 6.4 */
+
+/*****************************************************************************/
+#if ( LINUX_VERSION_CODE < KERNEL_VERSION(3,5,0) )
+
+#ifndef SIZE_MAX
+#define SIZE_MAX (~(size_t)0)
+#endif
+
+#ifndef BITS_PER_LONG_LONG
+#define BITS_PER_LONG_LONG 64
+#endif
+
+#ifndef ether_addr_equal
+static inline bool __kc_ether_addr_equal(const u8 *addr1, const u8 *addr2)
+{
+ return !compare_ether_addr(addr1, addr2);
+}
+
+#define ether_addr_equal(_addr1, _addr2) __kc_ether_addr_equal((_addr1),(_addr2))
+#endif
+
+/* Definitions for !CONFIG_OF_NET are introduced in 3.10 */
+#ifdef CONFIG_OF_NET
+static inline int of_get_phy_mode(struct device_node __always_unused *np)
+{
+ return -ENODEV;
+}
+
+static inline const void *of_get_mac_address(struct device_node __always_unused
+ *np)
+{
+ return NULL;
+}
+#endif
+#else
+#include <linux/of_net.h>
+#define HAVE_FDB_OPS
+#define HAVE_ETHTOOL_GET_TS_INFO
+#endif /* < 3.5.0 */
+
+/*****************************************************************************/
+#if ( LINUX_VERSION_CODE < KERNEL_VERSION(3,6,0) )
+#define PCI_EXP_LNKCAP2 44 /* Link Capability 2 */
+
+#ifndef MDIO_EEE_100TX
+#define MDIO_EEE_100TX 0x0002 /* 100TX EEE cap */
+#endif
+#ifndef MDIO_EEE_1000T
+#define MDIO_EEE_1000T 0x0004 /* 1000T EEE cap */
+#endif
+#ifndef MDIO_EEE_10GT
+#define MDIO_EEE_10GT 0x0008 /* 10GT EEE cap */
+#endif
+#ifndef MDIO_EEE_1000KX
+#define MDIO_EEE_1000KX 0x0010 /* 1000KX EEE cap */
+#endif
+#ifndef MDIO_EEE_10GKX4
+#define MDIO_EEE_10GKX4 0x0020 /* 10G KX4 EEE cap */
+#endif
+#ifndef MDIO_EEE_10GKR
+#define MDIO_EEE_10GKR 0x0040 /* 10G KR EEE cap */
+#endif
+
+#ifndef __GFP_MEMALLOC
+#define __GFP_MEMALLOC 0
+#endif
+
+#ifndef eth_broadcast_addr
+#define eth_broadcast_addr _kc_eth_broadcast_addr
+static inline void _kc_eth_broadcast_addr(u8 *addr)
+{
+ memset(addr, 0xff, ETH_ALEN);
+}
+#endif
+
+#ifndef eth_random_addr
+#define eth_random_addr _kc_eth_random_addr
+static inline void _kc_eth_random_addr(u8 *addr)
+{
+ get_random_bytes(addr, ETH_ALEN);
+ addr[0] &= 0xfe; /* clear multicast */
+ addr[0] |= 0x02; /* set local assignment */
+}
+#endif /* eth_random_addr */
+
+#ifndef DMA_ATTR_SKIP_CPU_SYNC
+#define DMA_ATTR_SKIP_CPU_SYNC 0
+#endif
+#else /* < 3.6.0 */
+#define HAVE_STRUCT_PAGE_PFMEMALLOC
+#endif /* < 3.6.0 */
+
+/******************************************************************************/
+#if ( LINUX_VERSION_CODE < KERNEL_VERSION(3,7,0) )
+#include <linux/workqueue.h>
+#ifndef ADVERTISED_40000baseKR4_Full
+/* these defines were all added in one commit, so should be safe
+ * to trigger activiation on one define
+ */
+#define SUPPORTED_40000baseKR4_Full BIT(23)
+#define SUPPORTED_40000baseCR4_Full BIT(24)
+#define SUPPORTED_40000baseSR4_Full BIT(25)
+#define SUPPORTED_40000baseLR4_Full BIT(26)
+#define ADVERTISED_40000baseKR4_Full BIT(23)
+#define ADVERTISED_40000baseCR4_Full BIT(24)
+#define ADVERTISED_40000baseSR4_Full BIT(25)
+#define ADVERTISED_40000baseLR4_Full BIT(26)
+#endif
+
+#ifndef mmd_eee_cap_to_ethtool_sup_t
+/**
+ * mmd_eee_cap_to_ethtool_sup_t
+ * @eee_cap: value of the MMD EEE Capability register
+ *
+ * A small helper function that translates MMD EEE Capability (3.20) bits
+ * to ethtool supported settings.
+ */
+static inline u32 __kc_mmd_eee_cap_to_ethtool_sup_t(u16 eee_cap)
+{
+ u32 supported = 0;
+
+ if (eee_cap & MDIO_EEE_100TX)
+ supported |= SUPPORTED_100baseT_Full;
+ if (eee_cap & MDIO_EEE_1000T)
+ supported |= SUPPORTED_1000baseT_Full;
+ if (eee_cap & MDIO_EEE_10GT)
+ supported |= SUPPORTED_10000baseT_Full;
+ if (eee_cap & MDIO_EEE_1000KX)
+ supported |= SUPPORTED_1000baseKX_Full;
+ if (eee_cap & MDIO_EEE_10GKX4)
+ supported |= SUPPORTED_10000baseKX4_Full;
+ if (eee_cap & MDIO_EEE_10GKR)
+ supported |= SUPPORTED_10000baseKR_Full;
+
+ return supported;
+}
+
+#define mmd_eee_cap_to_ethtool_sup_t(eee_cap) \
+ __kc_mmd_eee_cap_to_ethtool_sup_t(eee_cap)
+#endif /* mmd_eee_cap_to_ethtool_sup_t */
+
+#ifndef mmd_eee_adv_to_ethtool_adv_t
+/**
+ * mmd_eee_adv_to_ethtool_adv_t
+ * @eee_adv: value of the MMD EEE Advertisement/Link Partner Ability registers
+ *
+ * A small helper function that translates the MMD EEE Advertisement (7.60)
+ * and MMD EEE Link Partner Ability (7.61) bits to ethtool advertisement
+ * settings.
+ */
+static inline u32 __kc_mmd_eee_adv_to_ethtool_adv_t(u16 eee_adv)
+{
+ u32 adv = 0;
+
+ if (eee_adv & MDIO_EEE_100TX)
+ adv |= ADVERTISED_100baseT_Full;
+ if (eee_adv & MDIO_EEE_1000T)
+ adv |= ADVERTISED_1000baseT_Full;
+ if (eee_adv & MDIO_EEE_10GT)
+ adv |= ADVERTISED_10000baseT_Full;
+ if (eee_adv & MDIO_EEE_1000KX)
+ adv |= ADVERTISED_1000baseKX_Full;
+ if (eee_adv & MDIO_EEE_10GKX4)
+ adv |= ADVERTISED_10000baseKX4_Full;
+ if (eee_adv & MDIO_EEE_10GKR)
+ adv |= ADVERTISED_10000baseKR_Full;
+
+ return adv;
+}
+
+#define mmd_eee_adv_to_ethtool_adv_t(eee_adv) \
+ __kc_mmd_eee_adv_to_ethtool_adv_t(eee_adv)
+#endif /* mmd_eee_adv_to_ethtool_adv_t */
+
+#ifndef ethtool_adv_to_mmd_eee_adv_t
+/**
+ * ethtool_adv_to_mmd_eee_adv_t
+ * @adv: the ethtool advertisement settings
+ *
+ * A small helper function that translates ethtool advertisement settings
+ * to EEE advertisements for the MMD EEE Advertisement (7.60) and
+ * MMD EEE Link Partner Ability (7.61) registers.
+ */
+static inline u16 __kc_ethtool_adv_to_mmd_eee_adv_t(u32 adv)
+{
+ u16 reg = 0;
+
+ if (adv & ADVERTISED_100baseT_Full)
+ reg |= MDIO_EEE_100TX;
+ if (adv & ADVERTISED_1000baseT_Full)
+ reg |= MDIO_EEE_1000T;
+ if (adv & ADVERTISED_10000baseT_Full)
+ reg |= MDIO_EEE_10GT;
+ if (adv & ADVERTISED_1000baseKX_Full)
+ reg |= MDIO_EEE_1000KX;
+ if (adv & ADVERTISED_10000baseKX4_Full)
+ reg |= MDIO_EEE_10GKX4;
+ if (adv & ADVERTISED_10000baseKR_Full)
+ reg |= MDIO_EEE_10GKR;
+
+ return reg;
+}
+
+#define ethtool_adv_to_mmd_eee_adv_t(adv) __kc_ethtool_adv_to_mmd_eee_adv_t(adv)
+#endif /* ethtool_adv_to_mmd_eee_adv_t */
+
+#ifndef pci_pcie_type
+#if ( LINUX_VERSION_CODE < KERNEL_VERSION(2,6,24) )
+static inline u8 pci_pcie_type(struct pci_dev *pdev)
+{
+ int pos;
+ u16 reg16;
+
+ pos = pci_find_capability(pdev, PCI_CAP_ID_EXP);
+ BUG_ON(!pos);
+ pci_read_config_word(pdev, pos + PCI_EXP_FLAGS, &reg16);
+ return (reg16 & PCI_EXP_FLAGS_TYPE) >> 4;
+}
+#else /* < 2.6.24 */
+#define pci_pcie_type(x) (x)->pcie_type
+#endif /* < 2.6.24 */
+#endif /* pci_pcie_type */
+
+#if ( ! ( RHEL_RELEASE_CODE >= RHEL_RELEASE_VERSION(6,4) ) ) && \
+ ( ! ( SLE_VERSION_CODE >= SLE_VERSION(11,3,0) ) ) && \
+ ( LINUX_VERSION_CODE >= KERNEL_VERSION(3,0,0) )
+#define ptp_clock_register(caps, args...) ptp_clock_register(caps)
+#endif
+
+#ifndef pcie_capability_read_word
+int __kc_pcie_capability_read_word(struct pci_dev *dev, int pos, u16 *val);
+#define pcie_capability_read_word(d,p,v) __kc_pcie_capability_read_word(d,p,v)
+#endif /* pcie_capability_read_word */
+
+#ifndef pcie_capability_read_dword
+int __kc_pcie_capability_read_dword(struct pci_dev *dev, int pos, u32 *val);
+#define pcie_capability_read_dword(d,p,v) __kc_pcie_capability_read_dword(d,p,v)
+#endif
+
+#ifndef pcie_capability_write_word
+int __kc_pcie_capability_write_word(struct pci_dev *dev, int pos, u16 val);
+#define pcie_capability_write_word(d,p,v) __kc_pcie_capability_write_word(d,p,v)
+#endif /* pcie_capability_write_word */
+
+#ifndef pcie_capability_clear_and_set_word
+int __kc_pcie_capability_clear_and_set_word(struct pci_dev *dev, int pos,
+ u16 clear, u16 set);
+#define pcie_capability_clear_and_set_word(d,p,c,s) \
+ __kc_pcie_capability_clear_and_set_word(d,p,c,s)
+#endif /* pcie_capability_clear_and_set_word */
+
+#ifndef pcie_capability_clear_word
+int __kc_pcie_capability_clear_word(struct pci_dev *dev, int pos, u16 clear);
+#define pcie_capability_clear_word(d, p, c) \
+ __kc_pcie_capability_clear_word(d, p, c)
+#endif /* pcie_capability_clear_word */
+
+#ifndef PCI_EXP_LNKSTA2
+#define PCI_EXP_LNKSTA2 50 /* Link Status 2 */
+#endif
+
+#if (SLE_VERSION_CODE && SLE_VERSION_CODE >= SLE_VERSION(11,3,0))
+#define USE_CONST_DEV_UC_CHAR
+#define HAVE_NDO_FDB_ADD_NLATTR
+#endif
+
+#if !(RHEL_RELEASE_CODE >= RHEL_RELEASE_VERSION(6,8))
+#define napi_gro_flush(_napi, _flush_old) napi_gro_flush(_napi)
+#endif /* !RHEL6.8+ */
+
+#if (RHEL_RELEASE_CODE && RHEL_RELEASE_CODE >= RHEL_RELEASE_VERSION(6,6))
+#include <linux/hashtable.h>
+#else
+
+#define DEFINE_HASHTABLE(name, bits) \
+ struct hlist_head name[1 << (bits)] = \
+ { [0 ... ((1 << (bits)) - 1)] = HLIST_HEAD_INIT }
+
+#define DEFINE_READ_MOSTLY_HASHTABLE(name, bits) \
+ struct hlist_head name[1 << (bits)] __read_mostly = \
+ { [0 ... ((1 << (bits)) - 1)] = HLIST_HEAD_INIT }
+
+#define DECLARE_HASHTABLE(name, bits) \
+ struct hlist_head name[1 << (bits)]
+
+#define HASH_SIZE(name) (ARRAY_SIZE(name))
+#define HASH_BITS(name) ilog2(HASH_SIZE(name))
+
+/* Use hash_32 when possible to allow for fast 32bit hashing in 64bit kernels. */
+#define hash_min(val, bits) \
+ (sizeof(val) <= 4 ? hash_32(val, bits) : hash_long(val, bits))
+
+static inline void __hash_init(struct hlist_head *ht, unsigned int sz)
+{
+ unsigned int i;
+
+ for (i = 0; i < sz; i++)
+ INIT_HLIST_HEAD(&ht[i]);
+}
+
+#define hash_init(hashtable) __hash_init(hashtable, HASH_SIZE(hashtable))
+
+#define hash_add(hashtable, node, key) \
+ hlist_add_head(node, &hashtable[hash_min(key, HASH_BITS(hashtable))])
+
+static inline bool hash_hashed(struct hlist_node *node)
+{
+ return !hlist_unhashed(node);
+}
+
+static inline bool __hash_empty(struct hlist_head *ht, unsigned int sz)
+{
+ unsigned int i;
+
+ for (i = 0; i < sz; i++)
+ if (!hlist_empty(&ht[i]))
+ return false;
+
+ return true;
+}
+
+#define hash_empty(hashtable) __hash_empty(hashtable, HASH_SIZE(hashtable))
+
+static inline void hash_del(struct hlist_node *node)
+{
+ hlist_del_init(node);
+}
+#endif /* RHEL >= 6.6 */
+
+/* We don't have @flags support prior to 3.7, so we'll simply ignore the flags
+ * parameter on these older kernels.
+ */
+#define __setup_timer(_timer, _fn, _data, _flags) \
+ setup_timer((_timer), (_fn), (_data)) \
+
+#if ( ! ( RHEL_RELEASE_CODE >= RHEL_RELEASE_VERSION(6,7) ) ) && \
+ ( ! ( SLE_VERSION_CODE >= SLE_VERSION(12,0,0) ) )
+
+#ifndef mod_delayed_work
+/**
+ * __mod_delayed_work - modify delay or queue delayed work
+ * @wq: workqueue to use
+ * @dwork: delayed work to queue
+ * @delay: number of jiffies to wait before queueing
+ *
+ * Return: %true if @dwork was pending and was rescheduled;
+ * %false if it wasn't pending
+ *
+ * Note: the dwork parameter was declared as a void*
+ * to avoid comptibility problems with early 2.6 kernels
+ * where struct delayed_work is not declared. Unlike the original
+ * implementation flags are not preserved and it shouldn't be
+ * used in the interrupt context.
+ */
+static inline bool __mod_delayed_work(struct workqueue_struct *wq,
+ void *dwork, unsigned long delay)
+{
+ bool ret = cancel_delayed_work(dwork);
+ queue_delayed_work(wq, dwork, delay);
+ return ret;
+}
+
+#define mod_delayed_work(wq, dwork, delay) __mod_delayed_work(wq, dwork, delay)
+#endif /* mod_delayed_work */
+
+#endif /* !(RHEL >= 6.7) && !(SLE >= 12.0) */
+#else /* >= 3.7.0 */
+#include <linux/hashtable.h>
+#define HAVE_CONST_STRUCT_PCI_ERROR_HANDLERS
+#define USE_CONST_DEV_UC_CHAR
+#define HAVE_NDO_FDB_ADD_NLATTR
+#endif /* >= 3.7.0 */
+
+/*****************************************************************************/
+#if ( LINUX_VERSION_CODE < KERNEL_VERSION(3,8,0) )
+#if (!(RHEL_RELEASE_CODE && RHEL_RELEASE_CODE >= RHEL_RELEASE_VERSION(6,5)) && \
+ !(SLE_VERSION_CODE && SLE_VERSION_CODE >= SLE_VERSION(11,4,0)))
+#ifndef pci_sriov_set_totalvfs
+static inline int __kc_pci_sriov_set_totalvfs(struct pci_dev __always_unused
+ *dev, u16 __always_unused numvfs)
+{
+ return 0;
+}
+
+#define pci_sriov_set_totalvfs(a, b) __kc_pci_sriov_set_totalvfs((a), (b))
+#endif
+#endif /* !(RHEL_RELEASE_CODE >= 6.5 && SLE_VERSION_CODE >= 11.4) */
+#ifndef PCI_EXP_LNKCTL_ASPM_L0S
+#define PCI_EXP_LNKCTL_ASPM_L0S 0x01 /* L0s Enable */
+#endif
+#ifndef PCI_EXP_LNKCTL_ASPM_L1
+#define PCI_EXP_LNKCTL_ASPM_L1 0x02 /* L1 Enable */
+#endif
+#define HAVE_CONFIG_HOTPLUG
+/* Reserved Ethernet Addresses per IEEE 802.1Q */
+static const u8 eth_reserved_addr_base[ETH_ALEN] __aligned(2) = {
+0x01, 0x80, 0xc2, 0x00, 0x00, 0x00};
+
+#ifndef is_link_local_ether_addr
+static inline bool __kc_is_link_local_ether_addr(const u8 *addr)
+{
+ __be16 *a = (__be16 *) addr;
+ static const __be16 *b = (const __be16 *)eth_reserved_addr_base;
+ static const __be16 m = cpu_to_be16(0xfff0);
+
+ return ((a[0] ^ b[0]) | (a[1] ^ b[1]) | ((a[2] ^ b[2]) & m)) == 0;
+}
+
+#define is_link_local_ether_addr(addr) __kc_is_link_local_ether_addr(addr)
+#endif /* is_link_local_ether_addr */
+
+#ifndef FLOW_MAC_EXT
+#define FLOW_MAC_EXT 0x40000000
+#endif /* FLOW_MAC_EXT */
+
+#if (SLE_VERSION_CODE && SLE_VERSION_CODE >= SLE_VERSION(11,4,0))
+#define HAVE_SRIOV_CONFIGURE
+#endif
+
+#ifndef PCI_EXP_LNKCAP_SLS_2_5GB
+#define PCI_EXP_LNKCAP_SLS_2_5GB 0x00000001 /* LNKCAP2 SLS Vector bit 0 */
+#endif
+
+#ifndef PCI_EXP_LNKCAP_SLS_5_0GB
+#define PCI_EXP_LNKCAP_SLS_5_0GB 0x00000002 /* LNKCAP2 SLS Vector bit 1 */
+#endif
+
+#undef PCI_EXP_LNKCAP2_SLS_2_5GB
+#define PCI_EXP_LNKCAP2_SLS_2_5GB 0x00000002 /* Supported Speed 2.5GT/s */
+
+#undef PCI_EXP_LNKCAP2_SLS_5_0GB
+#define PCI_EXP_LNKCAP2_SLS_5_0GB 0x00000004 /* Supported Speed 5GT/s */
+
+#undef PCI_EXP_LNKCAP2_SLS_8_0GB
+#define PCI_EXP_LNKCAP2_SLS_8_0GB 0x00000008 /* Supported Speed 8GT/s */
+
+#else /* >= 3.8.0 */
+#ifndef __devinit
+#define __devinit
+#endif
+
+#ifndef __devinitdata
+#define __devinitdata
+#endif
+
+#ifndef __devinitconst
+#define __devinitconst
+#endif
+
+#ifndef __devexit
+#define __devexit
+#endif
+
+#ifndef __devexit_p
+#define __devexit_p
+#endif
+
+#ifndef HAVE_ENCAP_CSUM_OFFLOAD
+#define HAVE_ENCAP_CSUM_OFFLOAD
+#endif
+
+#ifndef HAVE_GRE_ENCAP_OFFLOAD
+#define HAVE_GRE_ENCAP_OFFLOAD
+#endif
+
+#ifndef HAVE_SRIOV_CONFIGURE
+#define HAVE_SRIOV_CONFIGURE
+#endif
+
+#define HAVE_BRIDGE_ATTRIBS
+#ifndef BRIDGE_MODE_VEB
+#define BRIDGE_MODE_VEB 0 /* Default loopback mode */
+#endif /* BRIDGE_MODE_VEB */
+#ifndef BRIDGE_MODE_VEPA
+#define BRIDGE_MODE_VEPA 1 /* 802.1Qbg defined VEPA mode */
+#endif /* BRIDGE_MODE_VEPA */
+#endif /* >= 3.8.0 */
+
+/*****************************************************************************/
+#if ( LINUX_VERSION_CODE < KERNEL_VERSION(3,9,0) )
+
+#undef BUILD_BUG_ON
+#ifdef __CHECKER__
+#define BUILD_BUG_ON(condition) (0)
+#else /* __CHECKER__ */
+#ifndef __compiletime_warning
+#if defined(__GNUC__) && ((__GNUC__ * 10000 + __GNUC_MINOR__ * 100) >= 40400)
+#define __compiletime_warning(message) __attribute__((warning(message)))
+#else /* __GNUC__ */
+#define __compiletime_warning(message)
+#endif /* __GNUC__ */
+#endif /* __compiletime_warning */
+#ifndef __compiletime_error
+#if defined(__GNUC__) && ((__GNUC__ * 10000 + __GNUC_MINOR__ * 100) >= 40400)
+#define __compiletime_error(message) __attribute__((error(message)))
+#define __compiletime_error_fallback(condition) do { } while (0)
+#else /* __GNUC__ */
+#define __compiletime_error(message)
+#define __compiletime_error_fallback(condition) \
+ do { ((void)sizeof(char[1 - 2 * condition])); } while (0)
+#endif /* __GNUC__ */
+#else /* __compiletime_error */
+#define __compiletime_error_fallback(condition) do { } while (0)
+#endif /* __compiletime_error */
+#define __compiletime_assert(condition, msg, prefix, suffix) \
+ do { \
+ bool __cond = !(condition); \
+ extern void prefix ## suffix(void) __compiletime_error(msg); \
+ if (__cond) \
+ prefix ## suffix(); \
+ __compiletime_error_fallback(__cond); \
+ } while (0)
+
+#define _compiletime_assert(condition, msg, prefix, suffix) \
+ __compiletime_assert(condition, msg, prefix, suffix)
+#define compiletime_assert(condition, msg) \
+ _compiletime_assert(condition, msg, __compiletime_assert_, __LINE__)
+#define BUILD_BUG_ON_MSG(cond, msg) compiletime_assert(!(cond), msg)
+#ifndef __OPTIMIZE__
+#define BUILD_BUG_ON(condition) ((void)sizeof(char[1 - 2*!!(condition)]))
+#else /* __OPTIMIZE__ */
+#define BUILD_BUG_ON(condition) \
+ BUILD_BUG_ON_MSG(condition, "BUILD_BUG_ON failed: " #condition)
+#endif /* __OPTIMIZE__ */
+#endif /* __CHECKER__ */
+
+#undef hlist_entry
+#define hlist_entry(ptr, type, member) container_of(ptr,type,member)
+
+#undef hlist_entry_safe
+#define hlist_entry_safe(ptr, type, member) \
+ ({ typeof(ptr) ____ptr = (ptr); \
+ ____ptr ? hlist_entry(____ptr, type, member) : NULL; \
+ })
+
+#undef hlist_for_each_entry
+#define hlist_for_each_entry(pos, head, member) \
+ for (pos = hlist_entry_safe((head)->first, typeof(*(pos)), member); \
+ pos; \
+ pos = hlist_entry_safe((pos)->member.next, typeof(*(pos)), member))
+
+#undef hlist_for_each_entry_safe
+#define hlist_for_each_entry_safe(pos, n, head, member) \
+ for (pos = hlist_entry_safe((head)->first, typeof(*pos), member); \
+ pos && ({ n = pos->member.next; 1; }); \
+ pos = hlist_entry_safe(n, typeof(*pos), member))
+
+#undef hlist_for_each_entry_continue
+#define hlist_for_each_entry_continue(pos, member) \
+ for (pos = hlist_entry_safe((pos)->member.next, typeof(*(pos)), member);\
+ pos; \
+ pos = hlist_entry_safe((pos)->member.next, typeof(*(pos)), member))
+
+#undef hlist_for_each_entry_from
+#define hlist_for_each_entry_from(pos, member) \
+ for (; pos; \
+ pos = hlist_entry_safe((pos)->member.next, typeof(*(pos)), member))
+
+#undef hash_for_each
+#define hash_for_each(name, bkt, obj, member) \
+ for ((bkt) = 0, obj = NULL; obj == NULL && (bkt) < HASH_SIZE(name);\
+ (bkt)++)\
+ hlist_for_each_entry(obj, &name[bkt], member)
+
+#undef hash_for_each_safe
+#define hash_for_each_safe(name, bkt, tmp, obj, member) \
+ for ((bkt) = 0, obj = NULL; obj == NULL && (bkt) < HASH_SIZE(name);\
+ (bkt)++)\
+ hlist_for_each_entry_safe(obj, tmp, &name[bkt], member)
+
+#undef hash_for_each_possible
+#define hash_for_each_possible(name, obj, member, key) \
+ hlist_for_each_entry(obj, &name[hash_min(key, HASH_BITS(name))], member)
+
+#undef hash_for_each_possible_safe
+#define hash_for_each_possible_safe(name, obj, tmp, member, key) \
+ hlist_for_each_entry_safe(obj, tmp,\
+ &name[hash_min(key, HASH_BITS(name))], member)
+
+#else
+#define HAVE_BRIDGE_FILTER
+#define HAVE_FDB_DEL_NLATTR
+#endif /* < 3.9.0 */
+
+/*****************************************************************************/
+#if ( LINUX_VERSION_CODE < KERNEL_VERSION(3,10,0) )
+#ifndef NAPI_POLL_WEIGHT
+#define NAPI_POLL_WEIGHT 64
+#endif
+
+#ifndef list_first_entry_or_null
+#define list_first_entry_or_null(ptr, type, member) \
+ (!list_empty(ptr) ? list_first_entry(ptr, type, member) : NULL)
+#endif
+
+#ifndef VLAN_TX_COOKIE_MAGIC
+static inline struct sk_buff *__kc__vlan_hwaccel_put_tag(struct sk_buff *skb,
+ u16 vlan_tci)
+{
+#ifdef VLAN_TAG_PRESENT
+ vlan_tci |= VLAN_TAG_PRESENT;
+#endif
+ skb->vlan_tci = vlan_tci;
+ return skb;
+}
+
+#define __vlan_hwaccel_put_tag(skb, vlan_proto, vlan_tci) \
+ __kc__vlan_hwaccel_put_tag(skb, vlan_tci)
+#endif
+
+#ifdef HAVE_FDB_OPS
+#if defined(HAVE_NDO_FDB_ADD_NLATTR)
+int __kc_ndo_dflt_fdb_add(struct ndmsg *ndm, struct nlattr *tb[],
+ struct net_device *dev,
+ const unsigned char *addr, u16 flags);
+#elif defined(USE_CONST_DEV_UC_CHAR)
+int __kc_ndo_dflt_fdb_add(struct ndmsg *ndm, struct net_device *dev,
+ const unsigned char *addr, u16 flags);
+#else
+int __kc_ndo_dflt_fdb_add(struct ndmsg *ndm, struct net_device *dev,
+ unsigned char *addr, u16 flags);
+#endif /* HAVE_NDO_FDB_ADD_NLATTR */
+#if defined(HAVE_FDB_DEL_NLATTR)
+int __kc_ndo_dflt_fdb_del(struct ndmsg *ndm, struct nlattr *tb[],
+ struct net_device *dev, const unsigned char *addr);
+#elif defined(USE_CONST_DEV_UC_CHAR)
+int __kc_ndo_dflt_fdb_del(struct ndmsg *ndm, struct net_device *dev,
+ const unsigned char *addr);
+#else
+int __kc_ndo_dflt_fdb_del(struct ndmsg *ndm, struct net_device *dev,
+ unsigned char *addr);
+#endif /* HAVE_FDB_DEL_NLATTR */
+#define ndo_dflt_fdb_add __kc_ndo_dflt_fdb_add
+#define ndo_dflt_fdb_del __kc_ndo_dflt_fdb_del
+#endif /* HAVE_FDB_OPS */
+
+#ifndef PCI_DEVID
+#define PCI_DEVID(bus, devfn) ((((u16)(bus)) << 8) | (devfn))
+#endif
+
+/* The definitions for these functions when CONFIG_OF_NET is defined are
+ * pulled in from <linux/of_net.h>. For kernels older than 3.5 we already have
+ * backports for when CONFIG_OF_NET is true. These are separated and
+ * duplicated in order to cover all cases so that all kernels get either the
+ * real definitions (when CONFIG_OF_NET is defined) or the stub definitions
+ * (when CONFIG_OF_NET is not defined, or the kernel is too old to have real
+ * definitions).
+ */
+#ifndef CONFIG_OF_NET
+static inline int of_get_phy_mode(struct device_node __always_unused *np)
+{
+ return -ENODEV;
+}
+
+static inline const void *of_get_mac_address(struct device_node __always_unused
+ *np)
+{
+ return NULL;
+}
+#endif
+
+#else /* >= 3.10.0 */
+#define HAVE_ENCAP_TSO_OFFLOAD
+#define USE_DEFAULT_FDB_DEL_DUMP
+#define HAVE_SKB_INNER_NETWORK_HEADER
+
+#if (RHEL_RELEASE_CODE && \
+ (RHEL_RELEASE_CODE >= RHEL_RELEASE_VERSION(7,0)) && \
+ (RHEL_RELEASE_CODE < RHEL_RELEASE_VERSION(8,0)))
+#define HAVE_RHEL7_PCI_DRIVER_RH
+#if (RHEL_RELEASE_CODE >= RHEL_RELEASE_VERSION(7,2))
+#define HAVE_RHEL7_PCI_RESET_NOTIFY
+#endif /* RHEL >= 7.2 */
+#if (RHEL_RELEASE_CODE >= RHEL_RELEASE_VERSION(7,3))
+#if (RHEL_RELEASE_CODE < RHEL_RELEASE_VERSION(7,5))
+#define HAVE_GENEVE_RX_OFFLOAD
+#endif /* RHEL >=7.3 && RHEL < 7.5 */
+#define HAVE_ETHTOOL_FLOW_UNION_IP6_SPEC
+#define HAVE_RHEL7_NET_DEVICE_OPS_EXT
+#if !defined(HAVE_UDP_ENC_TUNNEL) && IS_ENABLED(CONFIG_GENEVE)
+#define HAVE_UDP_ENC_TUNNEL
+#endif
+#endif /* RHEL >= 7.3 */
+
+/* new hooks added to net_device_ops_extended in RHEL7.4 */
+#if (RHEL_RELEASE_CODE >= RHEL_RELEASE_VERSION(7,4))
+#define HAVE_RHEL7_NETDEV_OPS_EXT_NDO_SET_VF_VLAN
+#define HAVE_RHEL7_NETDEV_OPS_EXT_NDO_UDP_TUNNEL
+#define HAVE_UDP_ENC_RX_OFFLOAD
+#endif /* RHEL >= 7.4 */
+#endif /* RHEL >= 7.0 && RHEL < 8.0 */
+
+#if (RHEL_RELEASE_CODE >= RHEL_RELEASE_VERSION(8,0))
+#define HAVE_TCF_BLOCK_CB_REGISTER_EXTACK
+#define NO_NETDEV_BPF_PROG_ATTACHED
+#endif /* RHEL >= 8.0 */
+#endif /* >= 3.10.0 */
+
+/*****************************************************************************/
+#if ( LINUX_VERSION_CODE < KERNEL_VERSION(3,11,0) )
+#define netdev_notifier_info_to_dev(ptr) ptr
+#ifndef time_in_range64
+#define time_in_range64(a, b, c) \
+ (time_after_eq64(a, b) && \
+ time_before_eq64(a, c))
+#endif /* time_in_range64 */
+#if ((RHEL_RELEASE_CODE && RHEL_RELEASE_CODE >= RHEL_RELEASE_VERSION(6,6)) ||\
+ (SLE_VERSION_CODE && SLE_VERSION_CODE >= SLE_VERSION(11,4,0)))
+#define HAVE_NDO_SET_VF_LINK_STATE
+#endif
+#if RHEL_RELEASE_CODE && (RHEL_RELEASE_CODE > RHEL_RELEASE_VERSION(7,2))
+#define HAVE_NDO_SELECT_QUEUE_ACCEL_FALLBACK
+#endif
+#else /* >= 3.11.0 */
+#define HAVE_NDO_SET_VF_LINK_STATE
+#define HAVE_SKB_INNER_PROTOCOL
+#define HAVE_MPLS_FEATURES
+#endif /* >= 3.11.0 */
+
+/*****************************************************************************/
+#if ( LINUX_VERSION_CODE < KERNEL_VERSION(3,12,0) )
+int __kc_pcie_get_minimum_link(struct pci_dev *dev, enum pci_bus_speed *speed,
+ enum pcie_link_width *width);
+#ifndef pcie_get_minimum_link
+#define pcie_get_minimum_link(_p, _s, _w) __kc_pcie_get_minimum_link(_p, _s, _w)
+#endif
+
+#if (RHEL_RELEASE_CODE < RHEL_RELEASE_VERSION(6,7))
+int _kc_pci_wait_for_pending_transaction(struct pci_dev *dev);
+#define pci_wait_for_pending_transaction _kc_pci_wait_for_pending_transaction
+#endif /* <RHEL6.7 */
+
+#else /* >= 3.12.0 */
+#if ( SLE_VERSION_CODE && SLE_VERSION_CODE >= SLE_VERSION(12,0,0))
+#define HAVE_NDO_SELECT_QUEUE_ACCEL_FALLBACK
+#endif
+#if ( LINUX_VERSION_CODE < KERNEL_VERSION(4,8,0) )
+#define HAVE_VXLAN_RX_OFFLOAD
+#if !defined(HAVE_UDP_ENC_TUNNEL) && IS_ENABLED(CONFIG_VXLAN)
+#define HAVE_UDP_ENC_TUNNEL
+#endif
+#endif /* < 4.8.0 */
+#define HAVE_NDO_GET_PHYS_PORT_ID
+#define HAVE_NETIF_SET_XPS_QUEUE_CONST_MASK
+#endif /* >= 3.12.0 */
+
+/*****************************************************************************/
+#if ( LINUX_VERSION_CODE < KERNEL_VERSION(3,13,0) )
+#define dma_set_mask_and_coherent(_p, _m) __kc_dma_set_mask_and_coherent(_p, _m)
+int __kc_dma_set_mask_and_coherent(struct device *dev, u64 mask);
+#ifndef u64_stats_init
+#define u64_stats_init(a) do { } while(0)
+#endif
+#undef BIT_ULL
+#define BIT_ULL(n) (1ULL << (n))
+
+#if (!(SLE_VERSION_CODE && SLE_VERSION_CODE >= SLE_VERSION(12,0,0)) && \
+ !(RHEL_RELEASE_CODE && RHEL_RELEASE_CODE >= RHEL_RELEASE_VERSION(7,0)))
+static inline struct pci_dev *pci_upstream_bridge(struct pci_dev *dev)
+{
+ dev = pci_physfn(dev);
+ if (pci_is_root_bus(dev->bus))
+ return NULL;
+
+ return dev->bus->self;
+}
+#endif
+
+#if (SLE_VERSION_CODE && SLE_VERSION_CODE >= SLE_VERSION(12,1,0))
+#undef HAVE_STRUCT_PAGE_PFMEMALLOC
+#define HAVE_DCBNL_OPS_SETAPP_RETURN_INT
+#endif
+#ifndef list_next_entry
+#define list_next_entry(pos, member) \
+ list_entry((pos)->member.next, typeof(*(pos)), member)
+#endif
+#ifndef list_prev_entry
+#define list_prev_entry(pos, member) \
+ list_entry((pos)->member.prev, typeof(*(pos)), member)
+#endif
+
+#if ( LINUX_VERSION_CODE > KERNEL_VERSION(2,6,20) )
+#define devm_kcalloc(dev, cnt, size, flags) \
+ devm_kzalloc(dev, cnt * size, flags)
+#endif /* > 2.6.20 */
+
+#if (!(RHEL_RELEASE_CODE >= RHEL_RELEASE_VERSION(7,2)))
+#define list_last_entry(ptr, type, member) list_entry((ptr)->prev, type, member)
+#endif
+
+#if (RHEL_RELEASE_CODE < RHEL_RELEASE_VERSION(7,0))
+bool _kc_pci_device_is_present(struct pci_dev *pdev);
+#define pci_device_is_present _kc_pci_device_is_present
+#endif /* <RHEL7.0 */
+#else /* >= 3.13.0 */
+#define HAVE_VXLAN_CHECKS
+#if (UBUNTU_VERSION_CODE && UBUNTU_VERSION_CODE >= UBUNTU_VERSION(3,13,0,24))
+#define HAVE_NDO_SELECT_QUEUE_ACCEL_FALLBACK
+#else
+#define HAVE_NDO_SELECT_QUEUE_ACCEL
+#endif
+#define HAVE_HWMON_DEVICE_REGISTER_WITH_GROUPS
+#endif
+
+/*****************************************************************************/
+#if ( LINUX_VERSION_CODE < KERNEL_VERSION(3,14,0) )
+
+#ifndef U16_MAX
+#define U16_MAX ((u16)~0U)
+#endif
+
+#ifndef U32_MAX
+#define U32_MAX ((u32)~0U)
+#endif
+
+#ifndef U64_MAX
+#define U64_MAX ((u64)~0ULL)
+#endif
+
+#if (!(RHEL_RELEASE_CODE && RHEL_RELEASE_CODE >= RHEL_RELEASE_VERSION(7,2)))
+#define dev_consume_skb_any(x) dev_kfree_skb_any(x)
+#define dev_consume_skb_irq(x) dev_kfree_skb_irq(x)
+#endif
+
+#if (!(RHEL_RELEASE_CODE && RHEL_RELEASE_CODE >= RHEL_RELEASE_VERSION(7,0)) && \
+ !(SLE_VERSION_CODE && SLE_VERSION_CODE >= SLE_VERSION(12,0,0)))
+
+/* it isn't expected that this would be a #define unless we made it so */
+#ifndef skb_set_hash
+
+#define PKT_HASH_TYPE_NONE 0
+#define PKT_HASH_TYPE_L2 1
+#define PKT_HASH_TYPE_L3 2
+#define PKT_HASH_TYPE_L4 3
+
+enum _kc_pkt_hash_types {
+ _KC_PKT_HASH_TYPE_NONE = PKT_HASH_TYPE_NONE,
+ _KC_PKT_HASH_TYPE_L2 = PKT_HASH_TYPE_L2,
+ _KC_PKT_HASH_TYPE_L3 = PKT_HASH_TYPE_L3,
+ _KC_PKT_HASH_TYPE_L4 = PKT_HASH_TYPE_L4,
+};
+#define pkt_hash_types _kc_pkt_hash_types
+
+#define skb_set_hash __kc_skb_set_hash
+static inline void __kc_skb_set_hash(struct sk_buff __maybe_unused * skb,
+ u32 __maybe_unused hash,
+ int __maybe_unused type)
+{
+#ifdef HAVE_SKB_L4_RXHASH
+ skb->l4_rxhash = (type == PKT_HASH_TYPE_L4);
+#endif
+#ifdef NETIF_F_RXHASH
+ skb->rxhash = hash;
+#endif
+}
+#endif /* !skb_set_hash */
+
+#else /* RHEL_RELEASE_CODE >= 7.0 || SLE_VERSION_CODE >= 12.0 */
+
+#if (!(RHEL_RELEASE_CODE && RHEL_RELEASE_CODE >= RHEL_RELEASE_VERSION(7,5)))
+#ifndef HAVE_VXLAN_RX_OFFLOAD
+#define HAVE_VXLAN_RX_OFFLOAD
+#endif /* HAVE_VXLAN_RX_OFFLOAD */
+#endif
+
+#if !defined(HAVE_UDP_ENC_TUNNEL) && IS_ENABLED(CONFIG_VXLAN)
+#define HAVE_UDP_ENC_TUNNEL
+#endif
+
+#ifndef HAVE_VXLAN_CHECKS
+#define HAVE_VXLAN_CHECKS
+#endif /* HAVE_VXLAN_CHECKS */
+#endif /* !(RHEL_RELEASE_CODE >= 7.0 && SLE_VERSION_CODE >= 12.0) */
+
+#if ((RHEL_RELEASE_CODE && RHEL_RELEASE_CODE >= RHEL_RELEASE_VERSION(7,3)) ||\
+ (SLE_VERSION_CODE && SLE_VERSION_CODE >= SLE_VERSION(12,0,0)))
+#define HAVE_NDO_DFWD_OPS
+#endif
+
+#ifndef pci_enable_msix_range
+int __kc_pci_enable_msix_range(struct pci_dev *dev, struct msix_entry *entries,
+ int minvec, int maxvec);
+#define pci_enable_msix_range __kc_pci_enable_msix_range
+#endif
+
+#ifndef ether_addr_copy
+#define ether_addr_copy __kc_ether_addr_copy
+static inline void __kc_ether_addr_copy(u8 *dst, const u8 *src)
+{
+#if defined(CONFIG_HAVE_EFFICIENT_UNALIGNED_ACCESS)
+ *(u32 *)dst = *(const u32 *)src;
+ *(u16 *)(dst + 4) = *(const u16 *)(src + 4);
+#else
+ u16 *a = (u16 *)dst;
+ const u16 *b = (const u16 *)src;
+
+ a[0] = b[0];
+ a[1] = b[1];
+ a[2] = b[2];
+#endif
+}
+#endif /* ether_addr_copy */
+int __kc_ipv6_find_hdr(const struct sk_buff *skb, unsigned int *offset,
+ int target, unsigned short *fragoff, int *flags);
+#define ipv6_find_hdr(a, b, c, d, e) __kc_ipv6_find_hdr((a), (b), (c), (d), (e))
+
+#ifndef OPTIMIZE_HIDE_VAR
+#ifdef __GNUC__
+#define OPTIMIZER_HIDE_VAR(var) __asm__ ("" : "=r" (var) : "0" (var))
+#else
+#include <linux/barrier.h>
+#define OPTIMIZE_HIDE_VAR(var) barrier()
+#endif
+#endif
+
+#if (!(RHEL_RELEASE_CODE && RHEL_RELEASE_CODE > RHEL_RELEASE_VERSION(7,0)) && \
+ !(SLE_VERSION_CODE && SLE_VERSION_CODE >= SLE_VERSION(10,4,0)))
+static inline __u32 skb_get_hash_raw(const struct sk_buff *skb)
+{
+#ifdef NETIF_F_RXHASH
+ return skb->rxhash;
+#else
+ return 0;
+#endif /* NETIF_F_RXHASH */
+}
+#endif /* !RHEL > 5.9 && !SLES >= 10.4 */
+
+#if (RHEL_RELEASE_CODE < RHEL_RELEASE_VERSION(7,5))
+#define request_firmware_direct request_firmware
+#endif /* !RHEL || RHEL < 7.5 */
+
+#else /* >= 3.14.0 */
+
+/* for ndo_dfwd_ ops add_station, del_station and _start_xmit */
+#ifndef HAVE_NDO_DFWD_OPS
+#define HAVE_NDO_DFWD_OPS
+#endif
+#define HAVE_NDO_SELECT_QUEUE_ACCEL_FALLBACK
+#endif /* 3.14.0 */
+
+/*****************************************************************************/
+#if ( LINUX_VERSION_CODE < KERNEL_VERSION(3,15,0) )
+#if (!(RHEL_RELEASE_CODE && RHEL_RELEASE_CODE > RHEL_RELEASE_VERSION(7,1)) && \
+ !(UBUNTU_VERSION_CODE && UBUNTU_VERSION_CODE >= UBUNTU_VERSION(3,13,0,30)))
+#define u64_stats_fetch_begin_irq u64_stats_fetch_begin_bh
+#define u64_stats_fetch_retry_irq u64_stats_fetch_retry_bh
+#endif
+
+char *_kc_devm_kstrdup(struct device *dev, const char *s, gfp_t gfp);
+#define devm_kstrdup(dev, s, gfp) _kc_devm_kstrdup(dev, s, gfp)
+
+#else
+#define HAVE_NET_GET_RANDOM_ONCE
+#define HAVE_PTP_1588_CLOCK_PINS
+#define HAVE_NETDEV_PORT
+#endif /* 3.15.0 */
+
+/*****************************************************************************/
+#if ( LINUX_VERSION_CODE < KERNEL_VERSION(3,16,0) )
+#ifndef smp_mb__before_atomic
+#define smp_mb__before_atomic() smp_mb()
+#define smp_mb__after_atomic() smp_mb()
+#endif
+#ifndef __dev_uc_sync
+#ifdef HAVE_SET_RX_MODE
+#ifdef NETDEV_HW_ADDR_T_UNICAST
+int __kc_hw_addr_sync_dev(struct netdev_hw_addr_list *list,
+ struct net_device *dev,
+ int (*sync) (struct net_device *,
+ const unsigned char *),
+ int (*unsync) (struct net_device *,
+ const unsigned char *));
+void __kc_hw_addr_unsync_dev(struct netdev_hw_addr_list *list,
+ struct net_device *dev,
+ int (*unsync) (struct net_device *,
+ const unsigned char *));
+#endif
+#ifndef NETDEV_HW_ADDR_T_MULTICAST
+int __kc_dev_addr_sync_dev(struct dev_addr_list **list, int *count,
+ struct net_device *dev,
+ int (*sync) (struct net_device *,
+ const unsigned char *),
+ int (*unsync) (struct net_device *,
+ const unsigned char *));
+void __kc_dev_addr_unsync_dev(struct dev_addr_list **list, int *count,
+ struct net_device *dev,
+ int (*unsync) (struct net_device *,
+ const unsigned char *));
+#endif
+#endif /* HAVE_SET_RX_MODE */
+
+static inline int __kc_dev_uc_sync(struct net_device __maybe_unused * dev,
+ int __maybe_unused(*sync) (struct net_device
+ *,
+ const unsigned
+ char *),
+ int __maybe_unused(*unsync) (struct
+ net_device *,
+ const unsigned
+ char *))
+{
+#ifdef NETDEV_HW_ADDR_T_UNICAST
+ return __kc_hw_addr_sync_dev(&dev->uc, dev, sync, unsync);
+#elif defined(HAVE_SET_RX_MODE)
+ return __kc_dev_addr_sync_dev(&dev->uc_list, &dev->uc_count,
+ dev, sync, unsync);
+#else
+ return 0;
+#endif
+}
+
+#define __dev_uc_sync __kc_dev_uc_sync
+
+static inline void __kc_dev_uc_unsync(struct net_device __maybe_unused * dev,
+ int __maybe_unused(*unsync) (struct
+ net_device *,
+ const
+ unsigned char
+ *))
+{
+#ifdef HAVE_SET_RX_MODE
+#ifdef NETDEV_HW_ADDR_T_UNICAST
+ __kc_hw_addr_unsync_dev(&dev->uc, dev, unsync);
+#else /* NETDEV_HW_ADDR_T_MULTICAST */
+ __kc_dev_addr_unsync_dev(&dev->uc_list, &dev->uc_count, dev, unsync);
+#endif /* NETDEV_HW_ADDR_T_UNICAST */
+#endif /* HAVE_SET_RX_MODE */
+}
+
+#define __dev_uc_unsync __kc_dev_uc_unsync
+
+static inline int __kc_dev_mc_sync(struct net_device __maybe_unused * dev,
+ int __maybe_unused(*sync) (struct net_device
+ *,
+ const unsigned
+ char *),
+ int __maybe_unused(*unsync) (struct
+ net_device *,
+ const unsigned
+ char *))
+{
+#ifdef NETDEV_HW_ADDR_T_MULTICAST
+ return __kc_hw_addr_sync_dev(&dev->mc, dev, sync, unsync);
+#elif defined(HAVE_SET_RX_MODE)
+ return __kc_dev_addr_sync_dev(&dev->mc_list, &dev->mc_count,
+ dev, sync, unsync);
+#else
+ return 0;
+#endif
+
+}
+
+#define __dev_mc_sync __kc_dev_mc_sync
+
+static inline void __kc_dev_mc_unsync(struct net_device __maybe_unused * dev,
+ int __maybe_unused(*unsync) (struct
+ net_device *,
+ const
+ unsigned char
+ *))
+{
+#ifdef HAVE_SET_RX_MODE
+#ifdef NETDEV_HW_ADDR_T_MULTICAST
+ __kc_hw_addr_unsync_dev(&dev->mc, dev, unsync);
+#else /* NETDEV_HW_ADDR_T_MULTICAST */
+ __kc_dev_addr_unsync_dev(&dev->mc_list, &dev->mc_count, dev, unsync);
+#endif /* NETDEV_HW_ADDR_T_MULTICAST */
+#endif /* HAVE_SET_RX_MODE */
+}
+
+#define __dev_mc_unsync __kc_dev_mc_unsync
+#endif /* __dev_uc_sync */
+
+#if RHEL_RELEASE_CODE && (RHEL_RELEASE_CODE > RHEL_RELEASE_VERSION(7,1))
+#define HAVE_NDO_SET_VF_MIN_MAX_TX_RATE
+#endif
+
+#ifndef NETIF_F_GSO_UDP_TUNNEL_CSUM
+/* if someone backports this, hopefully they backport as a #define.
+ * declare it as zero on older kernels so that if it get's or'd in
+ * it won't effect anything, therefore preventing core driver changes
+ */
+#define NETIF_F_GSO_UDP_TUNNEL_CSUM 0
+#define SKB_GSO_UDP_TUNNEL_CSUM 0
+#endif
+void *__kc_devm_kmemdup(struct device *dev, const void *src, size_t len,
+ gfp_t gfp);
+#define devm_kmemdup __kc_devm_kmemdup
+
+#else
+#if ( ( LINUX_VERSION_CODE < KERNEL_VERSION(4,13,0) ) && \
+ ! ( SLE_VERSION_CODE && ( SLE_VERSION_CODE >= SLE_VERSION(12,4,0)) ) )
+#define HAVE_PCI_ERROR_HANDLER_RESET_NOTIFY
+#endif /* >= 3.16.0 && < 4.13.0 && !(SLES >= 12sp4) */
+#define HAVE_NDO_SET_VF_MIN_MAX_TX_RATE
+#endif /* 3.16.0 */
+
+/*****************************************************************************/
+#if ( LINUX_VERSION_CODE < KERNEL_VERSION(3,17,0) )
+#if !(RHEL_RELEASE_CODE >= RHEL_RELEASE_VERSION(6,8) && \
+ RHEL_RELEASE_CODE < RHEL_RELEASE_VERSION(7,0)) && \
+ !(RHEL_RELEASE_CODE >= RHEL_RELEASE_VERSION(7,2))
+#ifndef timespec64
+#define timespec64 timespec
+static inline struct timespec64 timespec_to_timespec64(const struct timespec ts)
+{
+ return ts;
+}
+
+static inline struct timespec timespec64_to_timespec(const struct timespec64
+ ts64)
+{
+ return ts64;
+}
+
+#define timespec64_equal timespec_equal
+#define timespec64_compare timespec_compare
+#define set_normalized_timespec64 set_normalized_timespec
+#define timespec64_add_safe timespec_add_safe
+#define timespec64_add timespec_add
+#define timespec64_sub timespec_sub
+#define timespec64_valid timespec_valid
+#define timespec64_valid_strict timespec_valid_strict
+#define timespec64_to_ns timespec_to_ns
+#define ns_to_timespec64 ns_to_timespec
+#define ktime_to_timespec64 ktime_to_timespec
+#define ktime_get_ts64 ktime_get_ts
+#define ktime_get_real_ts64 ktime_get_real_ts
+#define timespec64_add_ns timespec_add_ns
+#endif /* timespec64 */
+#endif /* !(RHEL6.8<RHEL7.0) && !RHEL7.2+ */
+
+#if (RHEL_RELEASE_CODE >= RHEL_RELEASE_VERSION(6,8) && \
+ RHEL_RELEASE_CODE < RHEL_RELEASE_VERSION(7,0))
+static inline void ktime_get_real_ts64(struct timespec64 *ts)
+{
+ *ts = ktime_to_timespec64(ktime_get_real());
+}
+
+static inline void ktime_get_ts64(struct timespec64 *ts)
+{
+ *ts = ktime_to_timespec64(ktime_get());
+}
+#endif
+
+#if !(RHEL_RELEASE_CODE && RHEL_RELEASE_CODE >= RHEL_RELEASE_VERSION(7,4))
+#define hlist_add_behind(_a, _b) hlist_add_after(_b, _a)
+#endif
+
+#if (RHEL_RELEASE_CODE < RHEL_RELEASE_VERSION(7,5))
+#endif /* RHEL_RELEASE_CODE < RHEL7.5 */
+
+#if (RHEL_RELEASE_CODE < RHEL_RELEASE_VERSION(7,3))
+static inline u64 ktime_get_ns(void)
+{
+ return ktime_to_ns(ktime_get());
+}
+
+static inline u64 ktime_get_real_ns(void)
+{
+ return ktime_to_ns(ktime_get_real());
+}
+
+static inline u64 ktime_get_boot_ns(void)
+{
+ return ktime_to_ns(ktime_get_boottime());
+}
+#endif /* RHEL < 7.3 */
+
+#else
+#define HAVE_DCBNL_OPS_SETAPP_RETURN_INT
+#include <linux/time64.h>
+#define HAVE_RHASHTABLE
+#endif /* 3.17.0 */
+
+/*****************************************************************************/
+#if ( LINUX_VERSION_CODE < KERNEL_VERSION(3,18,0) )
+#ifndef NO_PTP_SUPPORT
+#include <linux/errqueue.h>
+struct sk_buff *__kc_skb_clone_sk(struct sk_buff *skb);
+void __kc_skb_complete_tx_timestamp(struct sk_buff *skb,
+ struct skb_shared_hwtstamps *hwtstamps);
+#define skb_clone_sk __kc_skb_clone_sk
+#define skb_complete_tx_timestamp __kc_skb_complete_tx_timestamp
+#endif
+#if (!(RHEL_RELEASE_CODE && (RHEL_RELEASE_CODE >= RHEL_RELEASE_VERSION(8,2))))
+u32 __kc_eth_get_headlen(const struct net_device *dev, unsigned char *data,
+ unsigned int max_len);
+#else
+unsigned int __kc_eth_get_headlen(unsigned char *data, unsigned int max_len);
+#endif /* !RHEL >= 8.2 */
+
+#define eth_get_headlen __kc_eth_get_headlen
+#ifndef ETH_P_XDSA
+#define ETH_P_XDSA 0x00F8
+#endif
+/* RHEL 7.1 backported csum_level, but SLES 12 and 12-SP1 did not */
+#if RHEL_RELEASE_CODE && (RHEL_RELEASE_CODE >= RHEL_RELEASE_VERSION(7,1))
+#define HAVE_SKBUFF_CSUM_LEVEL
+#endif /* >= RH 7.1 */
+
+/* RHEL 7.3 backported xmit_more */
+#if (RHEL_RELEASE_CODE && RHEL_RELEASE_CODE >= RHEL_RELEASE_VERSION(7,3))
+#define HAVE_SKB_XMIT_MORE
+#endif /* >= RH 7.3 */
+
+#undef GENMASK
+#define GENMASK(h, l) \
+ (((~0UL) << (l)) & (~0UL >> (BITS_PER_LONG - 1 - (h))))
+#undef GENMASK_ULL
+#define GENMASK_ULL(h, l) \
+ (((~0ULL) << (l)) & (~0ULL >> (BITS_PER_LONG_LONG - 1 - (h))))
+
+#else /* 3.18.0 */
+#define HAVE_SKBUFF_CSUM_LEVEL
+#define HAVE_SKB_XMIT_MORE
+#define HAVE_SKB_INNER_PROTOCOL_TYPE
+#endif /* 3.18.0 */
+
+/*****************************************************************************/
+#if ( LINUX_VERSION_CODE < KERNEL_VERSION(3,18,4) )
+#else
+#define HAVE_NDO_FEATURES_CHECK
+#endif /* 3.18.4 */
+
+/*****************************************************************************/
+#if ( LINUX_VERSION_CODE < KERNEL_VERSION(3,18,13) )
+#ifndef WRITE_ONCE
+#define WRITE_ONCE(x, val) ({ ACCESS_ONCE(x) = (val); })
+#endif
+#endif /* 3.18.13 */
+
+/*****************************************************************************/
+#if ( LINUX_VERSION_CODE < KERNEL_VERSION(3,19,0) )
+/* netdev_phys_port_id renamed to netdev_phys_item_id */
+#define netdev_phys_item_id netdev_phys_port_id
+
+static inline void _kc_napi_complete_done(struct napi_struct *napi,
+ int __always_unused work_done)
+{
+ napi_complete(napi);
+}
+
+/* don't use our backport if the distro kernels already have it */
+#if (SLE_VERSION_CODE && (SLE_VERSION_CODE < SLE_VERSION(12,3,0))) || \
+ (RHEL_RELEASE_CODE && (RHEL_RELEASE_CODE < RHEL_RELEASE_VERSION(7,5)))
+#define napi_complete_done _kc_napi_complete_done
+#endif
+
+int _kc_bitmap_print_to_pagebuf(bool list, char *buf,
+ const unsigned long *maskp, int nmaskbits);
+#define bitmap_print_to_pagebuf _kc_bitmap_print_to_pagebuf
+
+#ifndef NETDEV_RSS_KEY_LEN
+#define NETDEV_RSS_KEY_LEN (13 * 4)
+#endif
+#if (!(RHEL_RELEASE_CODE && \
+ ((RHEL_RELEASE_CODE >= RHEL_RELEASE_VERSION(6,7) && RHEL_RELEASE_CODE < RHEL_RELEASE_VERSION(7,0)) || \
+ (RHEL_RELEASE_CODE >= RHEL_RELEASE_VERSION(7,2)))))
+#define netdev_rss_key_fill(buffer, len) __kc_netdev_rss_key_fill(buffer, len)
+#endif /* RHEL_RELEASE_CODE */
+void __kc_netdev_rss_key_fill(void *buffer, size_t len);
+#define SPEED_20000 20000
+#define SPEED_40000 40000
+#ifndef dma_rmb
+#define dma_rmb() rmb()
+#endif
+#ifndef dev_alloc_pages
+#ifndef NUMA_NO_NODE
+#define NUMA_NO_NODE -1
+#endif
+#define dev_alloc_pages(_order) alloc_pages_node(NUMA_NO_NODE, (GFP_ATOMIC | __GFP_COLD | __GFP_COMP | __GFP_MEMALLOC), (_order))
+#endif
+#ifndef dev_alloc_page
+#define dev_alloc_page() dev_alloc_pages(0)
+#endif
+#if !defined(eth_skb_pad) && !defined(skb_put_padto)
+/**
+ * __kc_skb_put_padto - increase size and pad an skbuff up to a minimal size
+ * @skb: buffer to pad
+ * @len: minimal length
+ *
+ * Pads up a buffer to ensure the trailing bytes exist and are
+ * blanked. If the buffer already contains sufficient data it
+ * is untouched. Otherwise it is extended. Returns zero on
+ * success. The skb is freed on error.
+ */
+static inline int __kc_skb_put_padto(struct sk_buff *skb, unsigned int len)
+{
+ unsigned int size = skb->len;
+
+ if (unlikely(size < len)) {
+ len -= size;
+ if (skb_pad(skb, len))
+ return -ENOMEM;
+ __skb_put(skb, len);
+ }
+ return 0;
+}
+
+#define skb_put_padto(skb, len) __kc_skb_put_padto(skb, len)
+
+static inline int __kc_eth_skb_pad(struct sk_buff *skb)
+{
+ return __kc_skb_put_padto(skb, ETH_ZLEN);
+}
+
+#define eth_skb_pad(skb) __kc_eth_skb_pad(skb)
+#endif /* eth_skb_pad && skb_put_padto */
+
+#ifndef SKB_ALLOC_NAPI
+/* RHEL 7.2 backported napi_alloc_skb and friends */
+static inline struct sk_buff *__kc_napi_alloc_skb(struct napi_struct *napi,
+ unsigned int length)
+{
+ return netdev_alloc_skb_ip_align(napi->dev, length);
+}
+
+#define napi_alloc_skb(napi,len) __kc_napi_alloc_skb(napi,len)
+#define __napi_alloc_skb(napi,len,mask) __kc_napi_alloc_skb(napi,len)
+#endif /* SKB_ALLOC_NAPI */
+#define HAVE_CONFIG_PM_RUNTIME
+#if (RHEL_RELEASE_CODE && (RHEL_RELEASE_CODE > RHEL_RELEASE_VERSION(6,7)) && \
+ (RHEL_RELEASE_CODE < RHEL_RELEASE_VERSION(7,0)))
+#define HAVE_RXFH_HASHFUNC
+#endif /* 6.7 < RHEL < 7.0 */
+#if RHEL_RELEASE_CODE && (RHEL_RELEASE_CODE > RHEL_RELEASE_VERSION(7,1))
+#define HAVE_RXFH_HASHFUNC
+#define NDO_DFLT_BRIDGE_GETLINK_HAS_BRFLAGS
+#endif /* RHEL > 7.1 */
+#ifndef napi_schedule_irqoff
+#define napi_schedule_irqoff napi_schedule
+#endif
+#ifndef READ_ONCE
+#define READ_ONCE(_x) ACCESS_ONCE(_x)
+#endif
+#if RHEL_RELEASE_CODE && (RHEL_RELEASE_CODE > RHEL_RELEASE_VERSION(7,2))
+#define HAVE_NDO_FDB_ADD_VID
+#endif
+#ifndef ETH_MODULE_SFF_8636
+#define ETH_MODULE_SFF_8636 0x3
+#endif
+#ifndef ETH_MODULE_SFF_8636_LEN
+#define ETH_MODULE_SFF_8636_LEN 256
+#endif
+#ifndef ETH_MODULE_SFF_8436
+#define ETH_MODULE_SFF_8436 0x4
+#endif
+#ifndef ETH_MODULE_SFF_8436_LEN
+#define ETH_MODULE_SFF_8436_LEN 256
+#endif
+#ifndef writel_relaxed
+#define writel_relaxed writel
+#endif
+#else /* 3.19.0 */
+#define HAVE_NDO_FDB_ADD_VID
+#define HAVE_RXFH_HASHFUNC
+#define NDO_DFLT_BRIDGE_GETLINK_HAS_BRFLAGS
+#endif /* 3.19.0 */
+
+/*****************************************************************************/
+#if ( LINUX_VERSION_CODE < KERNEL_VERSION(3,20,0) )
+/* vlan_tx_xx functions got renamed to skb_vlan */
+#ifndef skb_vlan_tag_get
+#define skb_vlan_tag_get vlan_tx_tag_get
+#endif
+#ifndef skb_vlan_tag_present
+#define skb_vlan_tag_present vlan_tx_tag_present
+#endif
+#if RHEL_RELEASE_CODE && (RHEL_RELEASE_CODE > RHEL_RELEASE_VERSION(7,1))
+#define HAVE_INCLUDE_LINUX_TIMECOUNTER_H
+#endif
+#if RHEL_RELEASE_CODE && (RHEL_RELEASE_CODE > RHEL_RELEASE_VERSION(7,2))
+#define HAVE_NDO_BRIDGE_SET_DEL_LINK_FLAGS
+#endif
+#else
+#define HAVE_INCLUDE_LINUX_TIMECOUNTER_H
+#define HAVE_NDO_BRIDGE_SET_DEL_LINK_FLAGS
+#endif /* 3.20.0 */
+
+/*****************************************************************************/
+#if ( LINUX_VERSION_CODE < KERNEL_VERSION(4,0,0) )
+/* Definition for CONFIG_OF was introduced earlier */
+#if !defined(CONFIG_OF) && \
+ !(RHEL_RELEASE_CODE && RHEL_RELEASE_CODE > RHEL_RELEASE_VERSION(7,2))
+static inline struct device_node *pci_device_to_OF_node(const struct pci_dev
+ __always_unused *pdev)
+{
+ return NULL;
+}
+#else /* !CONFIG_OF && RHEL < 7.3 */
+#define HAVE_DDP_PROFILE_UPLOAD_SUPPORT
+#endif /* !CONFIG_OF && RHEL < 7.3 */
+#else /* < 4.0 */
+#define HAVE_DDP_PROFILE_UPLOAD_SUPPORT
+#endif /* < 4.0 */
+
+/*****************************************************************************/
+#if ( LINUX_VERSION_CODE < KERNEL_VERSION(4,1,0) )
+#ifndef NO_PTP_SUPPORT
+#ifdef HAVE_INCLUDE_LINUX_TIMECOUNTER_H
+#include <linux/timecounter.h>
+#else
+#include <linux/clocksource.h>
+#endif
+static inline void __kc_timecounter_adjtime(struct timecounter *tc, s64 delta)
+{
+ tc->nsec += delta;
+}
+
+static inline struct net_device *of_find_net_device_by_node(struct device_node
+ __always_unused *np)
+{
+ return NULL;
+}
+
+#define timecounter_adjtime __kc_timecounter_adjtime
+#endif
+#if ((RHEL_RELEASE_CODE && (RHEL_RELEASE_CODE >= RHEL_RELEASE_VERSION(7,2))) || \
+ (SLE_VERSION_CODE && (SLE_VERSION_CODE >= SLE_VERSION(12,2,0))))
+#define HAVE_NDO_SET_VF_RSS_QUERY_EN
+#endif
+#if RHEL_RELEASE_CODE && (RHEL_RELEASE_CODE > RHEL_RELEASE_VERSION(7,2))
+#define HAVE_NDO_BRIDGE_GETLINK_NLFLAGS
+#endif
+#if !((RHEL_RELEASE_CODE > RHEL_RELEASE_VERSION(6,8) && RHEL_RELEASE_CODE < RHEL_RELEASE_VERSION(7,0)) && \
+ (RHEL_RELEASE_CODE > RHEL_RELEASE_VERSION(7,2)) && \
+ (SLE_VERSION_CODE > SLE_VERSION(12,1,0)))
+unsigned int _kc_cpumask_local_spread(unsigned int i, int node);
+#define cpumask_local_spread _kc_cpumask_local_spread
+#endif
+#ifdef HAVE_RHASHTABLE
+#define rhashtable_loopup_fast(ht, key, params) \
+ do { \
+ (void)params; \
+ rhashtable_lookup((ht), (key)); \
+ } while (0)
+
+#if ( LINUX_VERSION_CODE < KERNEL_VERSION(3,19,0) )
+#define rhashtable_insert_fast(ht, obj, params) \
+ do { \
+ (void)params; \
+ rhashtable_insert((ht), (obj), GFP_KERNEL); \
+ } while (0)
+
+#define rhashtable_remove_fast(ht, obj, params) \
+ do { \
+ (void)params; \
+ rhashtable_remove((ht), (obj), GFP_KERNEL); \
+ } while (0)
+
+#else /* >= 3,19,0 */
+#define rhashtable_insert_fast(ht, obj, params) \
+ do { \
+ (void)params; \
+ rhashtable_insert((ht), (obj)); \
+ } while (0)
+
+#define rhashtable_remove_fast(ht, obj, params) \
+ do { \
+ (void)params; \
+ rhashtable_remove((ht), (obj)); \
+ } while (0)
+
+#endif /* 3,19,0 */
+#endif /* HAVE_RHASHTABLE */
+#else /* >= 4,1,0 */
+#define HAVE_NDO_GET_PHYS_PORT_NAME
+#define HAVE_PTP_CLOCK_INFO_GETTIME64
+#define HAVE_NDO_BRIDGE_GETLINK_NLFLAGS
+#define HAVE_PASSTHRU_FEATURES_CHECK
+#define HAVE_NDO_SET_VF_RSS_QUERY_EN
+#define HAVE_NDO_SET_TX_MAXRATE
+#endif /* 4,1,0 */
+
+/*****************************************************************************/
+#if (LINUX_VERSION_CODE < KERNEL_VERSION(4,1,9))
+#if (!(RHEL_RELEASE_CODE > RHEL_RELEASE_VERSION(7,2)) && \
+ !((SLE_VERSION_CODE == SLE_VERSION(11,3,0)) && \
+ (SLE_LOCALVERSION_CODE >= SLE_LOCALVERSION(0,47,71))) && \
+ !((SLE_VERSION_CODE == SLE_VERSION(11,4,0)) && \
+ (SLE_LOCALVERSION_CODE >= SLE_LOCALVERSION(65,0,0))) && \
+ !(SLE_VERSION_CODE >= SLE_VERSION(12,1,0)))
+static inline bool page_is_pfmemalloc(struct page __maybe_unused * page)
+{
+#ifdef HAVE_STRUCT_PAGE_PFMEMALLOC
+ return page->pfmemalloc;
+#else
+ return false;
+#endif
+}
+#endif /* !RHEL7.2+ && !SLES11sp3(3.0.101-0.47.71+ update) && !SLES11sp4(3.0.101-65+ update) & !SLES12sp1+ */
+#else
+#undef HAVE_STRUCT_PAGE_PFMEMALLOC
+#endif /* 4.1.9 */
+
+/*****************************************************************************/
+#if (LINUX_VERSION_CODE < KERNEL_VERSION(4,2,0))
+#if (!(RHEL_RELEASE_CODE >= RHEL_RELEASE_VERSION(7,2)) && \
+ !(SLE_VERSION_CODE >= SLE_VERSION(12,1,0)))
+#define ETHTOOL_RX_FLOW_SPEC_RING 0x00000000FFFFFFFFULL
+#define ETHTOOL_RX_FLOW_SPEC_RING_VF 0x000000FF00000000ULL
+#define ETHTOOL_RX_FLOW_SPEC_RING_VF_OFF 32
+static inline __u64 ethtool_get_flow_spec_ring(__u64 ring_cookie)
+{
+ return ETHTOOL_RX_FLOW_SPEC_RING & ring_cookie;
+};
+
+static inline __u64 ethtool_get_flow_spec_ring_vf(__u64 ring_cookie)
+{
+ return (ETHTOOL_RX_FLOW_SPEC_RING_VF & ring_cookie) >>
+ ETHTOOL_RX_FLOW_SPEC_RING_VF_OFF;
+};
+#endif /* ! RHEL >= 7.2 && ! SLES >= 12.1 */
+#if (RHEL_RELEASE_CODE && RHEL_RELEASE_CODE >= RHEL_RELEASE_VERSION(7,4))
+#define HAVE_NDO_DFLT_BRIDGE_GETLINK_VLAN_SUPPORT
+#endif
+
+#if (LINUX_VERSION_CODE > KERNEL_VERSION(2,6,27))
+#if (!((RHEL_RELEASE_CODE >= RHEL_RELEASE_VERSION(6,8) && \
+ RHEL_RELEASE_CODE < RHEL_RELEASE_VERSION(7,0)) || \
+ RHEL_RELEASE_CODE >= RHEL_RELEASE_VERSION(7,2)))
+static inline bool pci_ari_enabled(struct pci_bus *bus)
+{
+ return bus->self && bus->self->ari_enabled;
+}
+
+#if (RHEL_RELEASE_CODE >= RHEL_RELEASE_VERSION(7,2))
+#define HAVE_VF_STATS
+#endif /* (RHEL7.2+) */
+#endif /* !(RHEL6.8+ || RHEL7.2+) */
+#else
+static inline bool pci_ari_enabled(struct pci_bus *bus)
+{
+ return false;
+}
+#endif /* 2.6.27 */
+#else
+#define HAVE_NDO_DFLT_BRIDGE_GETLINK_VLAN_SUPPORT
+#define HAVE_VF_STATS
+#endif /* 4.2.0 */
+
+/*****************************************************************************/
+#if (LINUX_VERSION_CODE < KERNEL_VERSION(4,3,0))
+#if (!(RHEL_RELEASE_CODE >= RHEL_RELEASE_VERSION(7,4)) && \
+ !(SLE_VERSION_CODE >= SLE_VERSION(12,2,0)))
+/**
+ * _kc_flow_dissector_key_ipv4_addrs:
+ * @src: source ip address
+ * @dst: destination ip address
+ */
+struct _kc_flow_dissector_key_ipv4_addrs {
+ __be32 src;
+ __be32 dst;
+};
+
+/**
+ * _kc_flow_dissector_key_ipv6_addrs:
+ * @src: source ip address
+ * @dst: destination ip address
+ */
+struct _kc_flow_dissector_key_ipv6_addrs {
+ struct in6_addr src;
+ struct in6_addr dst;
+};
+
+/**
+ * _kc_flow_dissector_key_addrs:
+ * @v4addrs: IPv4 addresses
+ * @v6addrs: IPv6 addresses
+ */
+struct _kc_flow_dissector_key_addrs {
+ union {
+ struct _kc_flow_dissector_key_ipv4_addrs v4addrs;
+ struct _kc_flow_dissector_key_ipv6_addrs v6addrs;
+ };
+};
+
+/**
+ * _kc_flow_dissector_key_tp_ports:
+ * @ports: port numbers of Transport header
+ * src: source port number
+ * dst: destination port number
+ */
+struct _kc_flow_dissector_key_ports {
+ union {
+ __be32 ports;
+ struct {
+ __be16 src;
+ __be16 dst;
+ };
+ };
+};
+
+/**
+ * _kc_flow_dissector_key_basic:
+ * @n_proto: Network header protocol (eg. IPv4/IPv6)
+ * @ip_proto: Transport header protocol (eg. TCP/UDP)
+ * @padding: padding for alignment
+ */
+struct _kc_flow_dissector_key_basic {
+ __be16 n_proto;
+ u8 ip_proto;
+ u8 padding;
+};
+
+struct _kc_flow_keys {
+ struct _kc_flow_dissector_key_basic basic;
+ struct _kc_flow_dissector_key_ports ports;
+ struct _kc_flow_dissector_key_addrs addrs;
+};
+
+/* These are all the include files for kernels inside this #ifdef block that
+ * have any reference to the in kernel definition of struct flow_keys. The
+ * reason for putting them here is to make 100% sure that these files do not get
+ * included after re-defining flow_keys to _kc_flow_keys. This is done to
+ * prevent any possible ABI issues that this structure re-definition could case.
+ */
+#if ((LINUX_VERSION_CODE >= KERNEL_VERSION(3,3,0) && \
+ LINUX_VERSION_CODE < KERNEL_VERSION(4,2,0)) || \
+ RHEL_RELEASE_CODE >= RHEL_RELEASE_VERSION(6,7) || \
+ SLE_VERSION_CODE >= SLE_VERSION(11,4,0))
+#include <net/flow_keys.h>
+#endif /* (>= 3.3.0 && < 4.2.0) || >= RHEL 6.7 || >= SLE 11.4 */
+#if (LINUX_VERSION_CODE == KERNEL_VERSION(4,2,0))
+#include <net/flow_dissector.h>
+#endif /* 4.2.0 */
+#include <linux/skbuff.h>
+#include <net/ip.h>
+#include <net/ipv6.h>
+#include <net/flow.h>
+
+#define flow_keys _kc_flow_keys
+bool
+_kc_skb_flow_dissect_flow_keys(const struct sk_buff *skb,
+ struct flow_keys *flow,
+ unsigned int __always_unused flags);
+#define skb_flow_dissect_flow_keys _kc_skb_flow_dissect_flow_keys
+#endif /* ! >= RHEL 7.4 && ! >= SLES 12.2 */
+#endif /* 4.3.0 */
+
+/*****************************************************************************/
+#if (LINUX_VERSION_CODE < KERNEL_VERSION(4,4,0))
+#if (RHEL_RELEASE_CODE && RHEL_RELEASE_CODE >= RHEL_RELEASE_VERSION(7,3))
+#define HAVE_NDO_SET_VF_TRUST
+#endif /* (RHEL_RELEASE >= 7.3) */
+#ifndef CONFIG_64BIT
+#if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,3,0))
+#include <asm-generic/io-64-nonatomic-lo-hi.h> /* 32-bit readq/writeq */
+#else /* 3.3.0 => 4.3.x */
+#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,26))
+#include <asm-generic/int-ll64.h>
+#endif /* 2.6.26 => 3.3.0 */
+#ifndef readq
+static inline __u64 readq(const volatile void __iomem *addr)
+{
+ const volatile u32 __iomem *p = addr;
+ u32 low, high;
+
+ low = readl(p);
+ high = readl(p + 1);
+
+ return low + ((u64)high << 32);
+}
+
+#define readq readq
+#endif
+
+#ifndef writeq
+static inline void writeq(__u64 val, volatile void __iomem *addr)
+{
+ writel(val, addr);
+ writel(val >> 32, addr + 4);
+}
+
+#define writeq writeq
+#endif
+#endif /* < 3.3.0 */
+#endif /* !CONFIG_64BIT */
+#else /* < 4.4.0 */
+#define HAVE_NDO_SET_VF_TRUST
+
+#ifndef CONFIG_64BIT
+#include <linux/io-64-nonatomic-lo-hi.h> /* 32-bit readq/writeq */
+#endif /* !CONFIG_64BIT */
+#endif /* 4.4.0 */
+
+/*****************************************************************************/
+#if (LINUX_VERSION_CODE < KERNEL_VERSION(4,5,0))
+/* protect against a likely backport */
+#ifndef NETIF_F_CSUM_MASK
+#define NETIF_F_CSUM_MASK NETIF_F_ALL_CSUM
+#endif /* NETIF_F_CSUM_MASK */
+#ifndef NETIF_F_SCTP_CRC
+#define NETIF_F_SCTP_CRC NETIF_F_SCTP_CSUM
+#endif /* NETIF_F_SCTP_CRC */
+#if (!(RHEL_RELEASE_CODE >= RHEL_RELEASE_VERSION(7,3)))
+#define eth_platform_get_mac_address _kc_eth_platform_get_mac_address
+int _kc_eth_platform_get_mac_address(struct device *dev __maybe_unused,
+ u8 *mac_addr __maybe_unused);
+#endif /* !(RHEL_RELEASE >= 7.3) */
+#else /* 4.5.0 */
+#if ( LINUX_VERSION_CODE < KERNEL_VERSION(4,8,0) )
+#define HAVE_GENEVE_RX_OFFLOAD
+#if !defined(HAVE_UDP_ENC_TUNNEL) && IS_ENABLED(CONFIG_GENEVE)
+#define HAVE_UDP_ENC_TUNNEL
+#endif
+#endif /* < 4.8.0 */
+#define HAVE_NETIF_NAPI_ADD_CALLS_NAPI_HASH_ADD
+#define HAVE_NETDEV_UPPER_INFO
+#endif /* 4.5.0 */
+
+/*****************************************************************************/
+#if (LINUX_VERSION_CODE < KERNEL_VERSION(4,6,0))
+#if !(RHEL_RELEASE_CODE && RHEL_RELEASE_CODE > RHEL_RELEASE_VERSION(7,3))
+static inline unsigned char *skb_checksum_start(const struct sk_buff *skb)
+{
+#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,22))
+ return skb->head + skb->csum_start;
+#else /* < 2.6.22 */
+ return skb_transport_header(skb);
+#endif
+}
+#endif
+
+#if !(UBUNTU_VERSION_CODE && \
+ UBUNTU_VERSION_CODE >= UBUNTU_VERSION(4,4,0,21)) && \
+ !(RHEL_RELEASE_CODE && \
+ (RHEL_RELEASE_CODE > RHEL_RELEASE_VERSION(7,2))) && \
+ !(SLE_VERSION_CODE && (SLE_VERSION_CODE >= SLE_VERSION(12,3,0)))
+static inline void napi_consume_skb(struct sk_buff *skb,
+ int __always_unused budget)
+{
+ dev_consume_skb_any(skb);
+}
+
+#endif /* UBUNTU 4,4,0,21, RHEL 7.2, SLES12 SP3 */
+#if !(SLE_VERSION_CODE && (SLE_VERSION_CODE >= SLE_VERSION(12,3,0))) && \
+ !(RHEL_RELEASE_CODE && RHEL_RELEASE_CODE >= RHEL_RELEASE_VERSION(7,4))
+static inline void csum_replace_by_diff(__sum16 *sum, __wsum diff)
+{
+ *sum = csum_fold(csum_add(diff, ~csum_unfold(*sum)));
+}
+#endif
+#if !(RHEL_RELEASE_CODE && (RHEL_RELEASE_CODE > RHEL_RELEASE_VERSION(7,2))) && \
+ !(SLE_VERSION_CODE && (SLE_VERSION_CODE > SLE_VERSION(12,3,0)))
+static inline void page_ref_inc(struct page *page)
+{
+ get_page(page);
+}
+#else
+#define HAVE_PAGE_COUNT_BULK_UPDATE
+#endif
+#ifndef IPV4_USER_FLOW
+#define IPV4_USER_FLOW 0x0d /* spec only (usr_ip4_spec) */
+#endif
+
+#if (RHEL_RELEASE_CODE >= RHEL_RELEASE_VERSION(7,4))
+#define HAVE_TC_SETUP_CLSFLOWER
+#define HAVE_TC_FLOWER_ENC
+#endif
+
+#if ((RHEL_RELEASE_CODE >= RHEL_RELEASE_VERSION(7,7)) || \
+ (SLE_VERSION_CODE >= SLE_VERSION(12,2,0)))
+#define HAVE_TC_SETUP_CLSU32
+#endif
+
+#if (SLE_VERSION_CODE >= SLE_VERSION(12,2,0))
+#define HAVE_TC_SETUP_CLSFLOWER
+#endif
+
+#else /* >= 4.6.0 */
+#define HAVE_PAGE_COUNT_BULK_UPDATE
+#define HAVE_ETHTOOL_FLOW_UNION_IP6_SPEC
+#define HAVE_PTP_CROSSTIMESTAMP
+#define HAVE_TC_SETUP_CLSFLOWER
+#define HAVE_TC_SETUP_CLSU32
+#endif /* 4.6.0 */
+
+/*****************************************************************************/
+#if (LINUX_VERSION_CODE < KERNEL_VERSION(4,7,0))
+#if ((SLE_VERSION_CODE >= SLE_VERSION(12,3,0)) ||\
+ (RHEL_RELEASE_CODE && RHEL_RELEASE_CODE >= RHEL_RELEASE_VERSION(7,4)))
+#define HAVE_NETIF_TRANS_UPDATE
+#endif /* SLES12sp3+ || RHEL7.4+ */
+#if ((RHEL_RELEASE_CODE >= RHEL_RELEASE_VERSION(7,3)) ||\
+ (SLE_VERSION_CODE >= SLE_VERSION(12,3,0)))
+#define HAVE_ETHTOOL_25G_BITS
+#define HAVE_ETHTOOL_50G_BITS
+#define HAVE_ETHTOOL_100G_BITS
+#endif /* RHEL7.3+ || SLES12sp3+ */
+#else /* 4.7.0 */
+#define HAVE_NETIF_TRANS_UPDATE
+#define HAVE_ETHTOOL_CONVERT_U32_AND_LINK_MODE
+#define HAVE_ETHTOOL_25G_BITS
+#define HAVE_ETHTOOL_50G_BITS
+#define HAVE_ETHTOOL_100G_BITS
+#define HAVE_TCF_MIRRED_REDIRECT
+#endif /* 4.7.0 */
+
+/*****************************************************************************/
+#if (LINUX_VERSION_CODE < KERNEL_VERSION(4,8,0))
+#if !(RHEL_RELEASE_CODE && RHEL_RELEASE_CODE >= RHEL_RELEASE_VERSION(7,4))
+enum udp_parsable_tunnel_type {
+ UDP_TUNNEL_TYPE_VXLAN,
+ UDP_TUNNEL_TYPE_GENEVE,
+};
+struct udp_tunnel_info {
+ unsigned short type;
+ sa_family_t sa_family;
+ __be16 port;
+};
+#endif
+
+#if (RHEL_RELEASE_CODE && RHEL_RELEASE_CODE >= RHEL_RELEASE_VERSION(7,5))
+#define HAVE_TCF_EXTS_TO_LIST
+#endif
+
+#if (UBUNTU_VERSION_CODE && UBUNTU_VERSION_CODE < UBUNTU_VERSION(4,8,0,0))
+#define tc_no_actions(_exts) true
+#define tc_for_each_action(_a, _exts) while (0)
+#endif
+#if !(SLE_VERSION_CODE && (SLE_VERSION_CODE >= SLE_VERSION(12,3,0))) &&\
+ !(RHEL_RELEASE_CODE && RHEL_RELEASE_CODE >= RHEL_RELEASE_VERSION(7,4))
+static inline int
+#ifdef HAVE_NON_CONST_PCI_DRIVER_NAME
+pci_request_io_regions(struct pci_dev *pdev, char *name)
+#else
+pci_request_io_regions(struct pci_dev *pdev, const char *name)
+#endif
+{
+ return pci_request_selected_regions(pdev,
+ pci_select_bars(pdev,
+ IORESOURCE_IO),
+ name);
+}
+
+static inline void pci_release_io_regions(struct pci_dev *pdev)
+{
+ return pci_release_selected_regions(pdev,
+ pci_select_bars(pdev,
+ IORESOURCE_IO));
+}
+
+static inline int
+#ifdef HAVE_NON_CONST_PCI_DRIVER_NAME
+pci_request_mem_regions(struct pci_dev *pdev, char *name)
+#else
+pci_request_mem_regions(struct pci_dev *pdev, const char *name)
+#endif
+{
+ return pci_request_selected_regions(pdev,
+ pci_select_bars(pdev,
+ IORESOURCE_MEM),
+ name);
+}
+
+static inline void pci_release_mem_regions(struct pci_dev *pdev)
+{
+ return pci_release_selected_regions(pdev,
+ pci_select_bars(pdev,
+ IORESOURCE_MEM));
+}
+#endif /* !SLE_VERSION(12,3,0) */
+#if ((RHEL_RELEASE_CODE >= RHEL_RELEASE_VERSION(7,4)) ||\
+ (SLE_VERSION_CODE >= SLE_VERSION(12,3,0)))
+#define HAVE_ETHTOOL_NEW_50G_BITS
+#endif /* RHEL7.4+ || SLES12sp3+ */
+#else
+#define HAVE_UDP_ENC_RX_OFFLOAD
+#define HAVE_TCF_EXTS_TO_LIST
+#define HAVE_ETHTOOL_NEW_50G_BITS
+#endif /* 4.8.0 */
+
+/*****************************************************************************/
+#if (LINUX_VERSION_CODE < KERNEL_VERSION(4,9,0))
+#ifdef HAVE_TC_SETUP_CLSFLOWER
+#if (!(RHEL_RELEASE_CODE) && !(SLE_VERSION_CODE) || \
+ (SLE_VERSION_CODE && (SLE_VERSION_CODE < SLE_VERSION(12,3,0))))
+#define HAVE_TC_FLOWER_VLAN_IN_TAGS
+#endif /* !RHEL_RELEASE_CODE && !SLE_VERSION_CODE || <SLE_VERSION(12,3,0) */
+#endif /* HAVE_TC_SETUP_CLSFLOWER */
+#if (RHEL_RELEASE_CODE >= RHEL_RELEASE_VERSION(7,4))
+#define HAVE_ETHTOOL_NEW_1G_BITS
+#define HAVE_ETHTOOL_NEW_10G_BITS
+#endif /* RHEL7.4+ */
+#if (!(SLE_VERSION_CODE) && !(RHEL_RELEASE_CODE)) || \
+ SLE_VERSION_CODE && (SLE_VERSION_CODE <= SLE_VERSION(12,3,0)) || \
+ RHEL_RELEASE_CODE && (RHEL_RELEASE_CODE <= RHEL_RELEASE_VERSION(7,5))
+#define time_is_before_jiffies64(a) time_after64(get_jiffies_64(), a)
+#endif /* !SLE_VERSION_CODE && !RHEL_RELEASE_CODE || (SLES <= 12.3.0) || (RHEL <= 7.5) */
+#if (RHEL_RELEASE_CODE < RHEL_RELEASE_VERSION(7,4))
+static inline void bitmap_from_u64(unsigned long *dst, u64 mask)
+{
+ dst[0] = mask & ULONG_MAX;
+
+ if (sizeof(mask) > sizeof(unsigned long))
+ dst[1] = mask >> 32;
+}
+#endif /* <RHEL7.4 */
+#if (!(RHEL_RELEASE_CODE >= RHEL_RELEASE_VERSION(7,4)) && \
+ !(SLE_VERSION_CODE >= SLE_VERSION(12,3,0)) && \
+ !(UBUNTU_VERSION_CODE >= UBUNTU_VERSION(4,13,0,16)))
+static inline bool eth_type_vlan(__be16 ethertype)
+{
+ switch (ethertype) {
+ case htons(ETH_P_8021Q):
+#ifdef ETH_P_8021AD
+ case htons(ETH_P_8021AD):
+#endif
+ return true;
+ default:
+ return false;
+ }
+}
+#endif /* Linux < 4.9 || RHEL < 7.4 || SLES < 12.3 || Ubuntu < 4.3.0-16 */
+#else /* >=4.9 */
+#define HAVE_FLOW_DISSECTOR_KEY_VLAN_PRIO
+#define HAVE_ETHTOOL_NEW_1G_BITS
+#define HAVE_ETHTOOL_NEW_10G_BITS
+#endif /* KERNEL_VERSION(4.9.0) */
+
+/*****************************************************************************/
+#if (LINUX_VERSION_CODE < KERNEL_VERSION(4,10,0))
+/* SLES 12.3 and RHEL 7.5 backported this interface */
+#if (!SLE_VERSION_CODE && !RHEL_RELEASE_CODE) || \
+ (SLE_VERSION_CODE && (SLE_VERSION_CODE < SLE_VERSION(12,3,0))) || \
+ (RHEL_RELEASE_CODE && (RHEL_RELEASE_CODE < RHEL_RELEASE_VERSION(7,5)))
+static inline bool _kc_napi_complete_done2(struct napi_struct *napi,
+ int __always_unused work_done)
+{
+ /* it was really hard to get napi_complete_done to be safe to call
+ * recursively without running into our own kcompat, so just use
+ * napi_complete
+ */
+ napi_complete(napi);
+
+ /* true means that the stack is telling the driver to go-ahead and
+ * re-enable interrupts
+ */
+ return true;
+}
+
+#ifdef napi_complete_done
+#undef napi_complete_done
+#endif
+#define napi_complete_done _kc_napi_complete_done2
+#endif /* sles and rhel exclusion for < 4.10 */
+#if (RHEL_RELEASE_CODE >= RHEL_RELEASE_VERSION(7,4))
+#define HAVE_DEV_WALK_API
+#define HAVE_ETHTOOL_NEW_2500MB_BITS
+#define HAVE_ETHTOOL_5G_BITS
+#endif /* RHEL7.4+ */
+#if (SLE_VERSION_CODE && (SLE_VERSION_CODE == SLE_VERSION(12,3,0)))
+#define HAVE_STRUCT_DMA_ATTRS
+#endif /* (SLES == 12.3.0) */
+#if (SLE_VERSION_CODE && (SLE_VERSION_CODE >= SLE_VERSION(12,3,0)))
+#define HAVE_NETDEVICE_MIN_MAX_MTU
+#endif /* (SLES >= 12.3.0) */
+#if (RHEL_RELEASE_CODE && (RHEL_RELEASE_CODE >= RHEL_RELEASE_VERSION(7,5)))
+#define HAVE_STRUCT_DMA_ATTRS
+#define HAVE_RHEL7_EXTENDED_MIN_MAX_MTU
+#define HAVE_NETDEVICE_MIN_MAX_MTU
+#endif
+#if (!(SLE_VERSION_CODE && (SLE_VERSION_CODE >= SLE_VERSION(12,3,0))) && \
+ !(RHEL_RELEASE_CODE && (RHEL_RELEASE_CODE >= RHEL_RELEASE_VERSION(7,5))))
+#ifndef dma_map_page_attrs
+#define dma_map_page_attrs __kc_dma_map_page_attrs
+static inline dma_addr_t __kc_dma_map_page_attrs(struct device *dev,
+ struct page *page,
+ size_t offset, size_t size,
+ enum dma_data_direction dir,
+ unsigned long __always_unused
+ attrs)
+{
+ return dma_map_page(dev, page, offset, size, dir);
+}
+#endif
+
+#ifndef dma_unmap_page_attrs
+#define dma_unmap_page_attrs __kc_dma_unmap_page_attrs
+static inline void __kc_dma_unmap_page_attrs(struct device *dev,
+ dma_addr_t addr, size_t size,
+ enum dma_data_direction dir,
+ unsigned long __always_unused
+ attrs)
+{
+ dma_unmap_page(dev, addr, size, dir);
+}
+#endif
+
+static inline void __page_frag_cache_drain(struct page *page,
+ unsigned int count)
+{
+#ifdef HAVE_PAGE_COUNT_BULK_UPDATE
+ if (!page_ref_sub_and_test(page, count))
+ return;
+
+ init_page_count(page);
+#else
+ BUG_ON(count > 1);
+ if (!count)
+ return;
+#endif
+ __free_pages(page, compound_order(page));
+}
+#endif /* !SLE_VERSION(12,3,0) && !RHEL_VERSION(7,5) */
+#if ((SLE_VERSION_CODE && (SLE_VERSION_CODE > SLE_VERSION(12,3,0))) ||\
+ (RHEL_RELEASE_CODE && RHEL_RELEASE_CODE >= RHEL_RELEASE_VERSION(7,5)))
+#define HAVE_SWIOTLB_SKIP_CPU_SYNC
+#endif
+
+#if ((SLE_VERSION_CODE && (SLE_VERSION_CODE < SLE_VERSION(15,0,0))) ||\
+ (RHEL_RELEASE_CODE && (RHEL_RELEASE_CODE <= RHEL_RELEASE_VERSION(7,4))))
+#define page_frag_free __free_page_frag
+#endif
+#ifndef ETH_MIN_MTU
+#define ETH_MIN_MTU 68
+#endif /* ETH_MIN_MTU */
+#else /* >= 4.10 */
+#define HAVE_TC_FLOWER_ENC
+#define HAVE_NETDEVICE_MIN_MAX_MTU
+#define HAVE_SWIOTLB_SKIP_CPU_SYNC
+#define HAVE_NETDEV_TC_RESETS_XPS
+#define HAVE_XPS_QOS_SUPPORT
+#define HAVE_DEV_WALK_API
+#define HAVE_ETHTOOL_NEW_2500MB_BITS
+#define HAVE_ETHTOOL_5G_BITS
+/* kernel 4.10 onwards, as part of busy_poll rewrite, new state were added
+ * which is part of NAPI:state. If NAPI:state=NAPI_STATE_IN_BUSY_POLL,
+ * it means napi_poll is invoked in busy_poll context
+ */
+#define HAVE_NAPI_STATE_IN_BUSY_POLL
+#define HAVE_TCF_MIRRED_EGRESS_REDIRECT
+#endif /* 4.10.0 */
+
+/*****************************************************************************/
+#if (LINUX_VERSION_CODE < KERNEL_VERSION(4,11,0))
+#ifdef CONFIG_NET_RX_BUSY_POLL
+#define HAVE_NDO_BUSY_POLL
+#endif /* CONFIG_NET_RX_BUSY_POLL */
+#if ((SLE_VERSION_CODE && (SLE_VERSION_CODE >= SLE_VERSION(12,3,0))) || \
+ (RHEL_RELEASE_CODE && (RHEL_RELEASE_CODE >= RHEL_RELEASE_VERSION(7,5))))
+#define HAVE_VOID_NDO_GET_STATS64
+#endif /* (SLES >= 12.3.0) && (RHEL >= 7.5) */
+
+static inline void _kc_dev_kfree_skb_irq(struct sk_buff *skb)
+{
+ if (!skb)
+ return;
+ dev_kfree_skb_irq(skb);
+}
+
+#undef dev_kfree_skb_irq
+#define dev_kfree_skb_irq _kc_dev_kfree_skb_irq
+
+static inline void _kc_dev_consume_skb_irq(struct sk_buff *skb)
+{
+ if (!skb)
+ return;
+ dev_consume_skb_irq(skb);
+}
+
+#undef dev_consume_skb_irq
+#define dev_consume_skb_irq _kc_dev_consume_skb_irq
+
+static inline void _kc_dev_kfree_skb_any(struct sk_buff *skb)
+{
+ if (!skb)
+ return;
+ dev_kfree_skb_any(skb);
+}
+
+#undef dev_kfree_skb_any
+#define dev_kfree_skb_any _kc_dev_kfree_skb_any
+
+static inline void _kc_dev_consume_skb_any(struct sk_buff *skb)
+{
+ if (!skb)
+ return;
+ dev_consume_skb_any(skb);
+}
+
+#undef dev_consume_skb_any
+#define dev_consume_skb_any _kc_dev_consume_skb_any
+
+#else /* > 4.11 */
+#define HAVE_VOID_NDO_GET_STATS64
+#define HAVE_VM_OPS_FAULT_NO_VMA
+#endif /* 4.11.0 */
+
+/*****************************************************************************/
+#if (LINUX_VERSION_CODE < KERNEL_VERSION(4,12,0))
+#if (RHEL_RELEASE_CODE >= RHEL_RELEASE_VERSION(7,7) && \
+ RHEL_RELEASE_CODE < RHEL_RELEASE_VERSION(8,0))
+/* The RHEL 7.7+ NL_SET_ERR_MSG_MOD triggers unused parameter warnings */
+#undef NL_SET_ERR_MSG_MOD
+#endif
+#ifndef NL_SET_ERR_MSG_MOD
+#define NL_SET_ERR_MSG_MOD(extack, msg) \
+ do { \
+ uninitialized_var(extack); \
+ pr_err(KBUILD_MODNAME ": " msg); \
+ } while (0)
+#endif /* !NL_SET_ERR_MSG_MOD */
+#endif /* 4.12 */
+
+/*****************************************************************************/
+#if (LINUX_VERSION_CODE < KERNEL_VERSION(4,13,0))
+#if ((SLE_VERSION_CODE && (SLE_VERSION_CODE > SLE_VERSION(12,3,0))) || \
+ (RHEL_RELEASE_CODE && RHEL_RELEASE_CODE >= RHEL_RELEASE_VERSION(7,5)))
+#define HAVE_TCF_EXTS_HAS_ACTION
+#endif
+#define PCI_EXP_LNKCAP_SLS_8_0GB 0x00000003 /* LNKCAP2 SLS Vector bit 2 */
+#if (SLE_VERSION_CODE && (SLE_VERSION_CODE >= SLE_VERSION(12,4,0)))
+#define HAVE_PCI_ERROR_HANDLER_RESET_PREPARE
+#endif /* SLES >= 12sp4 */
+#if (!(RHEL_RELEASE_CODE >= RHEL_RELEASE_VERSION(7,5)) && \
+ !(SLE_VERSION_CODE >= SLE_VERSION(12,4,0)))
+#define UUID_SIZE 16
+typedef struct {
+ __u8 b[UUID_SIZE];
+} uuid_t;
+#define UUID_INIT(a, b, c, d0, d1, d2, d3, d4, d5, d6, d7) \
+((uuid_t) \
+{{ ((a) >> 24) & 0xff, ((a) >> 16) & 0xff, ((a) >> 8) & 0xff, (a) & 0xff, \
+ ((b) >> 8) & 0xff, (b) & 0xff, \
+ ((c) >> 8) & 0xff, (c) & 0xff, \
+ (d0), (d1), (d2), (d3), (d4), (d5), (d6), (d7) }})
+
+static inline bool uuid_equal(const uuid_t * u1, const uuid_t * u2)
+{
+ return memcmp(u1, u2, sizeof(uuid_t)) == 0;
+}
+#endif /* !(RHEL >= 7.5) && !(SLES >= 12.4) */
+#else /* > 4.13 */
+#define HAVE_HWTSTAMP_FILTER_NTP_ALL
+#define HAVE_NDO_SETUP_TC_CHAIN_INDEX
+#define HAVE_PCI_ERROR_HANDLER_RESET_PREPARE
+#define HAVE_PTP_CLOCK_DO_AUX_WORK
+#endif /* 4.13.0 */
+
+/*****************************************************************************/
+#if (LINUX_VERSION_CODE < KERNEL_VERSION(4,14,0))
+#ifdef ETHTOOL_GLINKSETTINGS
+#ifndef ethtool_link_ksettings_del_link_mode
+#define ethtool_link_ksettings_del_link_mode(ptr, name, mode) \
+ __clear_bit(ETHTOOL_LINK_MODE_ ## mode ## _BIT, (ptr)->link_modes.name)
+#endif
+#endif /* ETHTOOL_GLINKSETTINGS */
+#if (SLE_VERSION_CODE && (SLE_VERSION_CODE >= SLE_VERSION(12,4,0)))
+#define HAVE_NDO_SETUP_TC_REMOVE_TC_TO_NETDEV
+#endif
+
+#if (RHEL_RELEASE_CODE && (RHEL_RELEASE_CODE >= RHEL_RELEASE_VERSION(7,5)))
+#define HAVE_NDO_SETUP_TC_REMOVE_TC_TO_NETDEV
+#define HAVE_RHEL7_NETDEV_OPS_EXT_NDO_SETUP_TC
+#endif
+
+#define TIMER_DATA_TYPE unsigned long
+#define TIMER_FUNC_TYPE void (*)(TIMER_DATA_TYPE)
+
+#define timer_setup(timer, callback, flags) \
+ __setup_timer((timer), (TIMER_FUNC_TYPE)(callback), \
+ (TIMER_DATA_TYPE)(timer), (flags))
+
+#define from_timer(var, callback_timer, timer_fieldname) \
+ container_of(callback_timer, typeof(*var), timer_fieldname)
+
+#ifndef xdp_do_flush_map
+#define xdp_do_flush_map() do {} while (0)
+#endif
+struct _kc_xdp_buff {
+ void *data;
+ void *data_end;
+ void *data_hard_start;
+};
+#define xdp_buff _kc_xdp_buff
+struct _kc_bpf_prog {
+};
+#define bpf_prog _kc_bpf_prog
+#ifndef DIV_ROUND_DOWN_ULL
+#define DIV_ROUND_DOWN_ULL(ll, d) \
+ ({ unsigned long long _tmp = (ll); do_div(_tmp, d); _tmp; })
+#endif /* DIV_ROUND_DOWN_ULL */
+#else /* > 4.14 */
+#define HAVE_XDP_SUPPORT
+#define HAVE_NDO_SETUP_TC_REMOVE_TC_TO_NETDEV
+#define HAVE_TCF_EXTS_HAS_ACTION
+#endif /* 4.14.0 */
+
+/*****************************************************************************/
+#ifndef ETHTOOL_GLINKSETTINGS
+
+#define __ETHTOOL_LINK_MODE_MASK_NBITS 32
+#define ETHTOOL_LINK_MASK_SIZE BITS_TO_LONGS(__ETHTOOL_LINK_MODE_MASK_NBITS)
+
+/**
+ * struct ethtool_link_ksettings
+ * @link_modes: supported and advertising, single item arrays
+ * @link_modes.supported: bitmask of supported link speeds
+ * @link_modes.advertising: bitmask of currently advertised speeds
+ * @base: base link details
+ * @base.speed: current link speed
+ * @base.port: current port type
+ * @base.duplex: current duplex mode
+ * @base.autoneg: current autonegotiation settings
+ *
+ * This struct and the following macros provide a way to support the old
+ * ethtool get/set_settings API on older kernels, but in the style of the new
+ * GLINKSETTINGS API. In this way, the same code can be used to support both
+ * APIs as seemlessly as possible.
+ *
+ * It should be noted the old API only has support up to the first 32 bits.
+ */
+struct ethtool_link_ksettings {
+ struct {
+ u32 speed;
+ u8 port;
+ u8 duplex;
+ u8 autoneg;
+ } base;
+ struct {
+ unsigned long supported[ETHTOOL_LINK_MASK_SIZE];
+ unsigned long advertising[ETHTOOL_LINK_MASK_SIZE];
+ } link_modes;
+};
+
+#define ETHTOOL_LINK_NAME_advertising(mode) ADVERTISED_ ## mode
+#define ETHTOOL_LINK_NAME_supported(mode) SUPPORTED_ ## mode
+#define ETHTOOL_LINK_NAME(name) ETHTOOL_LINK_NAME_ ## name
+#define ETHTOOL_LINK_CONVERT(name, mode) ETHTOOL_LINK_NAME(name)(mode)
+
+/**
+ * ethtool_link_ksettings_zero_link_mode
+ * @ptr: ptr to ksettings struct
+ * @name: supported or advertising
+ */
+#define ethtool_link_ksettings_zero_link_mode(ptr, name)\
+ (*((ptr)->link_modes.name) = 0x0)
+
+/**
+ * ethtool_link_ksettings_add_link_mode
+ * @ptr: ptr to ksettings struct
+ * @name: supported or advertising
+ * @mode: link mode to add
+ */
+#define ethtool_link_ksettings_add_link_mode(ptr, name, mode)\
+ (*((ptr)->link_modes.name) |= (typeof(*((ptr)->link_modes.name)))ETHTOOL_LINK_CONVERT(name, mode))
+
+/**
+ * ethtool_link_ksettings_del_link_mode
+ * @ptr: ptr to ksettings struct
+ * @name: supported or advertising
+ * @mode: link mode to delete
+ */
+#define ethtool_link_ksettings_del_link_mode(ptr, name, mode)\
+ (*((ptr)->link_modes.name) &= ~(typeof(*((ptr)->link_modes.name)))ETHTOOL_LINK_CONVERT(name, mode))
+
+/**
+ * ethtool_link_ksettings_test_link_mode
+ * @ptr: ptr to ksettings struct
+ * @name: supported or advertising
+ * @mode: link mode to add
+ */
+#define ethtool_link_ksettings_test_link_mode(ptr, name, mode)\
+ (!!(*((ptr)->link_modes.name) & ETHTOOL_LINK_CONVERT(name, mode)))
+
+/**
+ * _kc_ethtool_ksettings_to_cmd - Convert ethtool_link_ksettings to ethtool_cmd
+ * @ks: ethtool_link_ksettings struct
+ * @cmd: ethtool_cmd struct
+ *
+ * Convert an ethtool_link_ksettings structure into the older ethtool_cmd
+ * structure. We provide this in kcompat.h so that drivers can easily
+ * implement the older .{get|set}_settings as wrappers around the new api.
+ * Hence, we keep it prefixed with _kc_ to make it clear this isn't actually
+ * a real function in the kernel.
+ */
+static inline void
+_kc_ethtool_ksettings_to_cmd(struct ethtool_link_ksettings *ks,
+ struct ethtool_cmd *cmd)
+{
+ cmd->supported = (u32)ks->link_modes.supported[0];
+ cmd->advertising = (u32)ks->link_modes.advertising[0];
+ ethtool_cmd_speed_set(cmd, ks->base.speed);
+ cmd->duplex = ks->base.duplex;
+ cmd->autoneg = ks->base.autoneg;
+ cmd->port = ks->base.port;
+}
+
+#endif /* !ETHTOOL_GLINKSETTINGS */
+
+/*****************************************************************************/
+#if ((LINUX_VERSION_CODE < KERNEL_VERSION(4,14,0)) || \
+ (SLE_VERSION_CODE && (SLE_VERSION_CODE <= SLE_VERSION(12,3,0))) || \
+ (RHEL_RELEASE_CODE && (RHEL_RELEASE_CODE <= RHEL_RELEASE_VERSION(7,5))))
+#define phy_speed_to_str _kc_phy_speed_to_str
+const char *_kc_phy_speed_to_str(int speed);
+#else /* (LINUX >= 4.14.0) || (SLES > 12.3.0) || (RHEL > 7.5) */
+#include <linux/phy.h>
+#endif /* (LINUX < 4.14.0) || (SLES <= 12.3.0) || (RHEL <= 7.5) */
+
+/*****************************************************************************/
+#if (LINUX_VERSION_CODE < KERNEL_VERSION(4,15,0))
+#if ((RHEL_RELEASE_CODE && (RHEL_RELEASE_CODE >= RHEL_RELEASE_VERSION(7,6))) || \
+ (SLE_VERSION_CODE && (SLE_VERSION_CODE >= SLE_VERSION(15,1,0))))
+#define HAVE_TC_CB_AND_SETUP_QDISC_MQPRIO
+#define HAVE_TCF_BLOCK
+#else /* RHEL >= 7.6 || SLES >= 15.1 */
+#define TC_SETUP_QDISC_MQPRIO TC_SETUP_MQPRIO
+#endif /* !(RHEL >= 7.6) && !(SLES >= 15.1) */
+void _kc_ethtool_intersect_link_masks(struct ethtool_link_ksettings *dst,
+ struct ethtool_link_ksettings *src);
+#define ethtool_intersect_link_masks _kc_ethtool_intersect_link_masks
+#else /* >= 4.15 */
+#define HAVE_NDO_BPF
+#define HAVE_XDP_BUFF_DATA_META
+#define HAVE_TC_CB_AND_SETUP_QDISC_MQPRIO
+#define HAVE_TCF_BLOCK
+#endif /* 4.15.0 */
+
+/*****************************************************************************/
+#if (LINUX_VERSION_CODE < KERNEL_VERSION(4,16,0))
+#if (!(RHEL_RELEASE_CODE >= RHEL_RELEASE_VERSION(7,7)) && \
+ !(SLE_VERSION_CODE >= SLE_VERSION(12,4,0) && \
+ SLE_VERSION_CODE < SLE_VERSION(15,0,0)) && \
+ !(SLE_VERSION_CODE >= SLE_VERSION(15,1,0)))
+/* The return value of the strscpy() and strlcpy() functions is different.
+ * This could be potentially hazard for the future.
+ * To avoid this the void result is forced.
+ * So it is not possible use this function with the return value.
+ * Return value is required in kernel 4.3 through 4.15
+ */
+#define strscpy(...) (void)(strlcpy(__VA_ARGS__))
+#endif /* !RHEL >= 7.7 && !SLES12sp4+ && !SLES15sp1+ */
+
+#define pci_printk(level, pdev, fmt, arg...) \
+ dev_printk(level, &(pdev)->dev, fmt, ##arg)
+#define pci_emerg(pdev, fmt, arg...) dev_emerg(&(pdev)->dev, fmt, ##arg)
+#define pci_alert(pdev, fmt, arg...) dev_alert(&(pdev)->dev, fmt, ##arg)
+#define pci_crit(pdev, fmt, arg...) dev_crit(&(pdev)->dev, fmt, ##arg)
+#define pci_err(pdev, fmt, arg...) dev_err(&(pdev)->dev, fmt, ##arg)
+#define pci_warn(pdev, fmt, arg...) dev_warn(&(pdev)->dev, fmt, ##arg)
+#define pci_notice(pdev, fmt, arg...) dev_notice(&(pdev)->dev, fmt, ##arg)
+#define pci_info(pdev, fmt, arg...) dev_info(&(pdev)->dev, fmt, ##arg)
+#define pci_dbg(pdev, fmt, arg...) dev_dbg(&(pdev)->dev, fmt, ##arg)
+
+#ifndef array_index_nospec
+static inline unsigned long _kc_array_index_mask_nospec(unsigned long index,
+ unsigned long size)
+{
+ /*
+ * Always calculate and emit the mask even if the compiler
+ * thinks the mask is not needed. The compiler does not take
+ * into account the value of @index under speculation.
+ */
+ OPTIMIZER_HIDE_VAR(index);
+ return ~(long)(index | (size - 1UL - index)) >> (BITS_PER_LONG - 1);
+}
+
+#define array_index_nospec(index, size) \
+({ \
+ typeof(index) _i = (index); \
+ typeof(size) _s = (size); \
+ unsigned long _mask = _kc_array_index_mask_nospec(_i, _s); \
+ \
+ BUILD_BUG_ON(sizeof(_i) > sizeof(long)); \
+ BUILD_BUG_ON(sizeof(_s) > sizeof(long)); \
+ \
+ (typeof(_i)) (_i & _mask); \
+})
+#endif /* array_index_nospec */
+#if (!(RHEL_RELEASE_CODE && (RHEL_RELEASE_CODE >= RHEL_RELEASE_VERSION(7,6))) && \
+ !(SLE_VERSION_CODE && (SLE_VERSION_CODE >= SLE_VERSION(15,1,0))))
+#ifdef HAVE_TC_CB_AND_SETUP_QDISC_MQPRIO
+#include <net/pkt_cls.h>
+static inline bool
+tc_cls_can_offload_and_chain0(const struct net_device *dev,
+ struct tc_cls_common_offload *common)
+{
+ if (!tc_can_offload(dev))
+ return false;
+ if (common->chain_index)
+ return false;
+
+ return true;
+}
+#endif /* HAVE_TC_CB_AND_SETUP_QDISC_MQPRIO */
+#endif /* !(RHEL >= 7.6) && !(SLES >= 15.1) */
+#ifndef sizeof_field
+#define sizeof_field(TYPE, MEMBER) (sizeof((((TYPE *)0)->MEMBER)))
+#endif /* sizeof_field */
+#else /* >= 4.16 */
+#include <linux/nospec.h>
+#define HAVE_XDP_BUFF_RXQ
+#define HAVE_TC_FLOWER_OFFLOAD_COMMON_EXTACK
+#define HAVE_TCF_MIRRED_DEV
+#define HAVE_VF_STATS_DROPPED
+#endif /* 4.16.0 */
+
+/*****************************************************************************/
+#if (LINUX_VERSION_CODE < KERNEL_VERSION(4,17,0))
+#include <linux/pci_regs.h>
+#include <linux/pci.h>
+#define PCIE_SPEED_16_0GT 0x17
+#define PCI_EXP_LNKCAP_SLS_16_0GB 0x00000004 /* LNKCAP2 SLS Vector bit 3 */
+#define PCI_EXP_LNKSTA_CLS_16_0GB 0x0004 /* Current Link Speed 16.0GT/s */
+#define PCI_EXP_LNKCAP2_SLS_16_0GB 0x00000010 /* Supported Speed 16GT/s */
+void _kc_pcie_print_link_status(struct pci_dev *dev);
+#define pcie_print_link_status _kc_pcie_print_link_status
+#else /* >= 4.17.0 */
+#define HAVE_XDP_BUFF_IN_XDP_H
+#endif /* 4.17.0 */
+
+/*****************************************************************************/
+#if (LINUX_VERSION_CODE < KERNEL_VERSION(4,18,0))
+#ifdef NETIF_F_HW_L2FW_DOFFLOAD
+#include <linux/if_macvlan.h>
+#ifndef macvlan_supports_dest_filter
+#define macvlan_supports_dest_filter _kc_macvlan_supports_dest_filter
+static inline bool _kc_macvlan_supports_dest_filter(struct net_device *dev)
+{
+ struct macvlan_dev *macvlan = netdev_priv(dev);
+
+ return macvlan->mode == MACVLAN_MODE_PRIVATE ||
+ macvlan->mode == MACVLAN_MODE_VEPA ||
+ macvlan->mode == MACVLAN_MODE_BRIDGE;
+}
+#endif
+
+#if (!SLE_VERSION_CODE || (SLE_VERSION_CODE < SLE_VERSION(15,1,0)))
+#ifndef macvlan_accel_priv
+#define macvlan_accel_priv _kc_macvlan_accel_priv
+static inline void *_kc_macvlan_accel_priv(struct net_device *dev)
+{
+ struct macvlan_dev *macvlan = netdev_priv(dev);
+
+ return macvlan->fwd_priv;
+}
+#endif
+
+#ifndef macvlan_release_l2fw_offload
+#define macvlan_release_l2fw_offload _kc_macvlan_release_l2fw_offload
+static inline int _kc_macvlan_release_l2fw_offload(struct net_device *dev)
+{
+ struct macvlan_dev *macvlan = netdev_priv(dev);
+
+ macvlan->fwd_priv = NULL;
+ return dev_uc_add(macvlan->lowerdev, dev->dev_addr);
+}
+#endif
+#endif /* !SLES || SLES < 15.1 */
+#endif /* NETIF_F_HW_L2FW_DOFFLOAD */
+#include "kcompat_overflow.h"
+
+#if (SLE_VERSION_CODE < SLE_VERSION(15,1,0))
+#define firmware_request_nowarn request_firmware_direct
+
+#if (RHEL_RELEASE_CODE < RHEL_RELEASE_VERSION(7,7))
+#if IS_ENABLED(CONFIG_NET_DEVLINK)
+#include <net/devlink.h>
+
+enum devlink_port_flavour {
+ DEVLINK_PORT_FLAVOUR_PHYSICAL,
+ DEVLINK_PORT_FLAVOUR_CPU,
+ DEVLINK_PORT_FLAVOUR_DSA,
+ DEVLINK_PORT_FLAVOUR_PCI_PF,
+ DEVLINK_PORT_FLAVOUR_PCI_VF,
+};
+
+#ifndef devlink_port_attrs_set
+static inline void
+_kc_devlink_port_attrs_set(struct devlink_port *devlink_port,
+ enum devlink_port_flavour __always_unused flavour,
+ u32 port_number, bool split,
+ u32 __always_unused split_subport_number,
+ const unsigned char __always_unused *switch_id,
+ unsigned char __always_unused switch_id_len)
+{
+ if (split)
+ devlink_port_split_set(devlink_port, port_number);
+}
+
+#define devlink_port_attrs_set _kc_devlink_port_attrs_set
+#endif /* !devlink_port_attrs_set */
+#endif /* CONFIG_NET_DEVLINK */
+#endif /* <RHEL7.7 */
+#endif /* !SLES || SLES < 15.1 */
+
+#else
+#include <linux/overflow.h>
+#include <net/xdp_sock.h>
+#define HAVE_XDP_FRAME_STRUCT
+#define HAVE_XDP_SOCK
+#define HAVE_NDO_XDP_XMIT_BULK_AND_FLAGS
+#define NO_NDO_XDP_FLUSH
+#define HAVE_AF_XDP_SUPPORT
+#endif /* 4.18.0 */
+
+/*****************************************************************************/
+#if (LINUX_VERSION_CODE < KERNEL_VERSION(4,19,0))
+#if (RHEL_RELEASE_CODE && (RHEL_RELEASE_CODE >= RHEL_RELEASE_VERSION(8,0)))
+#define HAVE_DEVLINK_REGIONS
+#endif
+#define bitmap_alloc(nbits, flags) \
+ kmalloc_array(BITS_TO_LONGS(nbits), sizeof(unsigned long), flags)
+#define bitmap_zalloc(nbits, flags) bitmap_alloc(nbits, ((flags) | __GFP_ZERO))
+#define bitmap_free(bitmap) kfree(bitmap)
+#ifdef ETHTOOL_GLINKSETTINGS
+#define ethtool_ks_clear(ptr, name) \
+ ethtool_link_ksettings_zero_link_mode(ptr, name)
+#define ethtool_ks_add_mode(ptr, name, mode) \
+ ethtool_link_ksettings_add_link_mode(ptr, name, mode)
+#define ethtool_ks_del_mode(ptr, name, mode) \
+ ethtool_link_ksettings_del_link_mode(ptr, name, mode)
+#define ethtool_ks_test(ptr, name, mode) \
+ ethtool_link_ksettings_test_link_mode(ptr, name, mode)
+#endif /* ETHTOOL_GLINKSETTINGS */
+#define HAVE_NETPOLL_CONTROLLER
+#define REQUIRE_PCI_CLEANUP_AER_ERROR_STATUS
+#if (SLE_VERSION_CODE && (SLE_VERSION_CODE >= SLE_VERSION(15,1,0)))
+#define HAVE_TCF_MIRRED_DEV
+#define HAVE_NDO_SELECT_QUEUE_SB_DEV
+#define HAVE_TCF_BLOCK_CB_REGISTER_EXTACK
+#endif
+#if ((RHEL_RELEASE_CODE >= RHEL_RELEASE_VERSION(8,0)) ||\
+ (SLE_VERSION_CODE >= SLE_VERSION(15,1,0)))
+#define HAVE_TCF_EXTS_FOR_EACH_ACTION
+#undef HAVE_TCF_EXTS_TO_LIST
+#endif /* RHEL8.0+ */
+#else /* >= 4.19.0 */
+#define HAVE_TCF_BLOCK_CB_REGISTER_EXTACK
+#define NO_NETDEV_BPF_PROG_ATTACHED
+#define HAVE_NDO_SELECT_QUEUE_SB_DEV
+#define HAVE_NETDEV_SB_DEV
+#undef HAVE_TCF_EXTS_TO_LIST
+#define HAVE_TCF_EXTS_FOR_EACH_ACTION
+#define HAVE_TCF_VLAN_TPID
+#define HAVE_RHASHTABLE_TYPES
+#define HAVE_DEVLINK_REGIONS
+#define HAVE_DEVLINK_PARAMS
+#endif /* 4.19.0 */
+
+/*****************************************************************************/
+#if (LINUX_VERSION_CODE < KERNEL_VERSION(4,20,0))
+#define HAVE_XDP_UMEM_PROPS
+#ifdef HAVE_AF_XDP_SUPPORT
+#ifndef napi_if_scheduled_mark_missed
+static inline bool __kc_napi_if_scheduled_mark_missed(struct napi_struct *n)
+{
+ unsigned long val, new;
+
+ do {
+ val = READ_ONCE(n->state);
+ if (val & NAPIF_STATE_DISABLE)
+ return true;
+
+ if (!(val & NAPIF_STATE_SCHED))
+ return false;
+
+ new = val | NAPIF_STATE_MISSED;
+ } while (cmpxchg(&n->state, val, new) != val);
+
+ return true;
+}
+
+#define napi_if_scheduled_mark_missed __kc_napi_if_scheduled_mark_missed
+#endif /* !napi_if_scheduled_mark_missed */
+#endif /* HAVE_AF_XDP_SUPPORT */
+#if (RHEL_RELEASE_CODE && (RHEL_RELEASE_CODE >= RHEL_RELEASE_VERSION(8,0)))
+#define HAVE_DEVLINK_ESWITCH_OPS_EXTACK
+#endif /* RHEL >= 8.0 */
+#else /* >= 4.20.0 */
+#define HAVE_DEVLINK_ESWITCH_OPS_EXTACK
+#define HAVE_AF_XDP_ZC_SUPPORT
+#define HAVE_VXLAN_TYPE
+#define HAVE_ETF_SUPPORT /* Earliest TxTime First */
+#endif /* 4.20.0 */
+
+/*****************************************************************************/
+#if (LINUX_VERSION_CODE < KERNEL_VERSION(5,0,0))
+#if (!(RHEL_RELEASE_CODE && RHEL_RELEASE_CODE > RHEL_RELEASE_VERSION(8,0)))
+#if (LINUX_VERSION_CODE < KERNEL_VERSION(4,12,0))
+#define NETLINK_MAX_COOKIE_LEN 20
+struct netlink_ext_ack {
+ const char *_msg;
+ const struct nlattr *bad_attr;
+ u8 cookie[NETLINK_MAX_COOKIE_LEN];
+ u8 cookie_len;
+};
+
+#endif /* < 4.12 */
+static inline int _kc_dev_open(struct net_device *netdev,
+ struct netlink_ext_ack __always_unused *extack)
+{
+ return dev_open(netdev);
+}
+
+#define dev_open _kc_dev_open
+
+static inline int
+_kc_dev_change_flags(struct net_device *netdev, unsigned int flags,
+ struct netlink_ext_ack __always_unused *extack)
+{
+ return dev_change_flags(netdev, flags);
+}
+
+#define dev_change_flags _kc_dev_change_flags
+#endif /* !(RHEL_RELEASE_CODE && RHEL > RHEL(8,0)) */
+#if (RHEL_RELEASE_CODE && \
+ (RHEL_RELEASE_CODE >= RHEL_RELEASE_VERSION(7,7) && \
+ RHEL_RELEASE_CODE < RHEL_RELEASE_VERSION(8,0)) || \
+ (RHEL_RELEASE_CODE >= RHEL_RELEASE_VERSION(8,1)))
+#define HAVE_PTP_SYS_OFFSET_EXTENDED_IOCTL
+#else /* RHEL >= 7.7 && RHEL < 8.0 || RHEL >= 8.1 */
+struct ptp_system_timestamp {
+ struct timespec64 pre_ts;
+ struct timespec64 post_ts;
+};
+
+static inline void
+ptp_read_system_prets(struct ptp_system_timestamp __always_unused *sts)
+{
+ ;
+}
+
+static inline void
+ptp_read_system_postts(struct ptp_system_timestamp __always_unused *sts)
+{
+ ;
+}
+#endif /* !(RHEL >= 7.7 && RHEL != 8.0) */
+#if (RHEL_RELEASE_CODE && (RHEL_RELEASE_CODE >= RHEL_RELEASE_VERSION(8,1)))
+#define HAVE_NDO_BRIDGE_SETLINK_EXTACK
+#endif /* RHEL 8.1 */
+#if (RHEL_RELEASE_CODE >= RHEL_RELEASE_VERSION(8,2))
+#define HAVE_TC_INDIR_BLOCK
+#endif /* RHEL 8.2 */
+#else /* >= 5.0.0 */
+#define HAVE_PTP_SYS_OFFSET_EXTENDED_IOCTL
+#define HAVE_NDO_BRIDGE_SETLINK_EXTACK
+#define HAVE_DMA_ALLOC_COHERENT_ZEROES_MEM
+#define HAVE_GENEVE_TYPE
+#define HAVE_TC_INDIR_BLOCK
+#endif /* 5.0.0 */
+
+/*****************************************************************************/
+#if (LINUX_VERSION_CODE < KERNEL_VERSION(5,1,0))
+#if (RHEL_RELEASE_CODE && (RHEL_RELEASE_CODE >= RHEL_RELEASE_VERSION(8,1)))
+#define HAVE_TC_FLOW_RULE_INFRASTRUCTURE
+#define HAVE_NDO_FDB_ADD_EXTACK
+#define HAVE_DEVLINK_INFO_GET
+#define HAVE_DEVLINK_FLASH_UPDATE
+#else /* RHEL < 8.1 */
+#ifdef HAVE_TC_SETUP_CLSFLOWER
+#include <net/pkt_cls.h>
+
+struct flow_match {
+ struct flow_dissector *dissector;
+ void *mask;
+ void *key;
+};
+
+struct flow_match_basic {
+ struct flow_dissector_key_basic *key, *mask;
+};
+
+struct flow_match_control {
+ struct flow_dissector_key_control *key, *mask;
+};
+
+struct flow_match_eth_addrs {
+ struct flow_dissector_key_eth_addrs *key, *mask;
+};
+
+#ifdef HAVE_TC_FLOWER_ENC
+struct flow_match_enc_keyid {
+ struct flow_dissector_key_keyid *key, *mask;
+};
+#endif
+
+#ifndef HAVE_TC_FLOWER_VLAN_IN_TAGS
+struct flow_match_vlan {
+ struct flow_dissector_key_vlan *key, *mask;
+};
+#endif
+
+struct flow_match_ipv4_addrs {
+ struct flow_dissector_key_ipv4_addrs *key, *mask;
+};
+
+struct flow_match_ipv6_addrs {
+ struct flow_dissector_key_ipv6_addrs *key, *mask;
+};
+
+struct flow_match_ports {
+ struct flow_dissector_key_ports *key, *mask;
+};
+
+struct flow_rule {
+ struct flow_match match;
+#if 0
+ /* In 5.1+ kernels, action is a member of struct flow_rule but is
+ * not compatible with how we kcompat tc_cls_flower_offload_flow_rule
+ * below. By not declaring it here, any driver that attempts to use
+ * action as an element of struct flow_rule will fail to compile
+ * instead of silently trying to access memory that shouldn't be.
+ */
+ struct flow_action action;
+#endif
+};
+
+void flow_rule_match_basic(const struct flow_rule *rule,
+ struct flow_match_basic *out);
+void flow_rule_match_control(const struct flow_rule *rule,
+ struct flow_match_control *out);
+void flow_rule_match_eth_addrs(const struct flow_rule *rule,
+ struct flow_match_eth_addrs *out);
+#ifndef HAVE_TC_FLOWER_VLAN_IN_TAGS
+void flow_rule_match_vlan(const struct flow_rule *rule,
+ struct flow_match_vlan *out);
+#endif
+void flow_rule_match_ipv4_addrs(const struct flow_rule *rule,
+ struct flow_match_ipv4_addrs *out);
+void flow_rule_match_ipv6_addrs(const struct flow_rule *rule,
+ struct flow_match_ipv6_addrs *out);
+void flow_rule_match_ports(const struct flow_rule *rule,
+ struct flow_match_ports *out);
+#ifdef HAVE_TC_FLOWER_ENC
+void flow_rule_match_enc_ports(const struct flow_rule *rule,
+ struct flow_match_ports *out);
+void flow_rule_match_enc_control(const struct flow_rule *rule,
+ struct flow_match_control *out);
+void flow_rule_match_enc_ipv4_addrs(const struct flow_rule *rule,
+ struct flow_match_ipv4_addrs *out);
+void flow_rule_match_enc_ipv6_addrs(const struct flow_rule *rule,
+ struct flow_match_ipv6_addrs *out);
+void flow_rule_match_enc_keyid(const struct flow_rule *rule,
+ struct flow_match_enc_keyid *out);
+#endif
+
+static inline struct flow_rule *tc_cls_flower_offload_flow_rule(struct
+ tc_cls_flower_offload
+ *tc_flow_cmd)
+{
+ return (struct flow_rule *)&tc_flow_cmd->dissector;
+}
+
+static inline bool flow_rule_match_key(const struct flow_rule *rule,
+ enum flow_dissector_key_id key)
+{
+ return dissector_uses_key(rule->match.dissector, key);
+}
+#endif /* HAVE_TC_SETUP_CLSFLOWER */
+
+#endif /* RHEL < 8.1 */
+#else /* >= 5.1.0 */
+#define HAVE_NDO_FDB_ADD_EXTACK
+#define NO_XDP_QUERY_XSK_UMEM
+#define HAVE_TC_FLOW_RULE_INFRASTRUCTURE
+#define HAVE_TC_FLOWER_ENC_IP
+#define HAVE_DEVLINK_INFO_GET
+#define HAVE_DEVLINK_FLASH_UPDATE
+#define HAVE_DEVLINK_PORT_PARAMS
+#endif /* 5.1.0 */
+
+/*****************************************************************************/
+#if (LINUX_VERSION_CODE < KERNEL_VERSION(5,2,0))
+#if (defined HAVE_SKB_XMIT_MORE) && \
+(!(RHEL_RELEASE_CODE && (RHEL_RELEASE_CODE >= RHEL_RELEASE_VERSION(8,2))))
+#define netdev_xmit_more() (skb->xmit_more)
+#else
+#define netdev_xmit_more() (0)
+#endif
+
+#if (!(RHEL_RELEASE_CODE && (RHEL_RELEASE_CODE >= RHEL_RELEASE_VERSION(8,2))))
+#ifndef eth_get_headlen
+static inline u32
+__kc_eth_get_headlen(const struct net_device __always_unused *dev, void *data,
+ unsigned int len)
+{
+ return eth_get_headlen(data, len);
+}
+
+#define eth_get_headlen(dev, data, len) __kc_eth_get_headlen(dev, data, len)
+#endif /* !eth_get_headlen */
+#endif /* !RHEL >= 8.2 */
+
+#ifndef mmiowb
+#ifdef CONFIG_IA64
+#define mmiowb() asm volatile ("mf.a" ::: "memory")
+#else
+#define mmiowb()
+#endif
+#endif /* mmiowb */
+
+#if (RHEL_RELEASE_CODE < RHEL_RELEASE_VERSION(8,2))
+#if IS_ENABLED(CONFIG_NET_DEVLINK)
+#include <net/devlink.h>
+#ifndef devlink_port_attrs_set
+static inline void
+_kc_devlink_port_attrs_set(struct devlink_port *devlink_port,
+ enum devlink_port_flavour flavour,
+ u32 port_number, bool split,
+ u32 split_subport_number,
+ const unsigned char __always_unused *switch_id,
+ unsigned char __always_unused switch_id_len)
+{
+ devlink_port_attrs_set(devlink_port, flavour, port_number, split,
+ split_subport_number);
+}
+
+#define devlink_port_attrs_set _kc_devlink_port_attrs_set
+#endif /* !devlink_port_attrs_set */
+#endif /* CONFIG_NET_DEVLINK */
+#endif /* <RHEL8.2 */
+
+#else /* >= 5.2.0 */
+#define HAVE_NDO_SELECT_QUEUE_FALLBACK_REMOVED
+#define SPIN_UNLOCK_IMPLIES_MMIOWB
+#endif /* 5.2.0 */
+
+/*****************************************************************************/
+#if (LINUX_VERSION_CODE < KERNEL_VERSION(5,3,0))
+#if (!(RHEL_RELEASE_CODE >= RHEL_RELEASE_VERSION(8,2)))
+#define flow_block_offload tc_block_offload
+#define flow_block_command tc_block_command
+#define flow_cls_offload tc_cls_flower_offload
+#define flow_block_binder_type tcf_block_binder_type
+#define flow_cls_common_offload tc_cls_common_offload
+#define flow_cls_offload_flow_rule tc_cls_flower_offload_flow_rule
+#define FLOW_CLS_REPLACE TC_CLSFLOWER_REPLACE
+#define FLOW_CLS_DESTROY TC_CLSFLOWER_DESTROY
+#define FLOW_CLS_STATS TC_CLSFLOWER_STATS
+#define FLOW_CLS_TMPLT_CREATE TC_CLSFLOWER_TMPLT_CREATE
+#define FLOW_CLS_TMPLT_DESTROY TC_CLSFLOWER_TMPLT_DESTROY
+#define FLOW_BLOCK_BINDER_TYPE_CLSACT_INGRESS \
+ TCF_BLOCK_BINDER_TYPE_CLSACT_INGRESS
+#define FLOW_BLOCK_BIND TC_BLOCK_BIND
+#define FLOW_BLOCK_UNBIND TC_BLOCK_UNBIND
+
+#ifdef HAVE_TC_CB_AND_SETUP_QDISC_MQPRIO
+#include <net/pkt_cls.h>
+
+int _kc_flow_block_cb_setup_simple(struct flow_block_offload *f,
+ struct list_head *driver_list,
+ tc_setup_cb_t * cb,
+ void *cb_ident, void *cb_priv,
+ bool ingress_only);
+
+#define flow_block_cb_setup_simple(f, driver_list, cb, cb_ident, cb_priv, \
+ ingress_only) \
+ _kc_flow_block_cb_setup_simple(f, driver_list, cb, cb_ident, cb_priv, \
+ ingress_only)
+#endif /* HAVE_TC_CB_AND_SETUP_QDISC_MQPRIO */
+#else /* RHEL >= 8.2 */
+#define HAVE_FLOW_BLOCK_API
+#endif /* RHEL >= 8.2 */
+
+#ifndef ETH_P_LLDP
+#define ETH_P_LLDP 0x88CC
+#endif /* !ETH_P_LLDP */
+
+#if IS_ENABLED(CONFIG_NET_DEVLINK)
+static inline void
+devlink_flash_update_begin_notify(struct devlink __always_unused *devlink)
+{
+}
+
+static inline void
+devlink_flash_update_end_notify(struct devlink __always_unused *devlink)
+{
+}
+
+static inline void
+devlink_flash_update_status_notify(struct devlink __always_unused *devlink,
+ const char __always_unused *status_msg,
+ const char __always_unused *component,
+ unsigned long __always_unused done,
+ unsigned long __always_unused total)
+{
+}
+#endif /* CONFIG_NET_DEVLINK */
+#else /* >= 5.3.0 */
+#define XSK_UMEM_RETURNS_XDP_DESC
+#define HAVE_XSK_UMEM_HAS_ADDRS
+#define HAVE_FLOW_BLOCK_API
+#endif /* 5.3.0 */
+
+/*****************************************************************************/
+#if (LINUX_VERSION_CODE < KERNEL_VERSION(5,4,0))
+#if (!(RHEL_RELEASE_CODE >= RHEL_RELEASE_VERSION(8,2)) && \
+ !(SLE_VERSION_CODE >= SLE_VERSION(15,2,0)))
+static inline unsigned int skb_frag_off(const skb_frag_t * frag)
+{
+ return frag->page_offset;
+}
+
+static inline void skb_frag_off_add(skb_frag_t * frag, int delta)
+{
+ frag->page_offset += delta;
+}
+
+#define __flow_indr_block_cb_register __tc_indr_block_cb_register
+#define __flow_indr_block_cb_unregister __tc_indr_block_cb_unregister
+#endif /* !(RHEL >= 8.2) && !(SLES >= 15sp2) */
+#if (SLE_VERSION_CODE >= SLE_VERSION(15,2,0))
+#define HAVE_NDO_XSK_WAKEUP
+#endif /* SLES15sp2 */
+#else /* >= 5.4.0 */
+#define HAVE_NDO_XSK_WAKEUP
+#endif /* 5.4.0 */
+
+/*****************************************************************************/
+#if (LINUX_VERSION_CODE < KERNEL_VERSION(5,4,0))
+static inline unsigned long _kc_bitmap_get_value8(const unsigned long *map,
+ unsigned long start)
+{
+ const size_t index = BIT_WORD(start);
+ const unsigned long offset = start % BITS_PER_LONG;
+
+ return (map[index] >> offset) & 0xFF;
+}
+
+#define bitmap_get_value8 _kc_bitmap_get_value8
+
+static inline void _kc_bitmap_set_value8(unsigned long *map,
+ unsigned long value,
+ unsigned long start)
+{
+ const size_t index = BIT_WORD(start);
+ const unsigned long offset = start % BITS_PER_LONG;
+
+ map[index] &= ~(0xFFUL << offset);
+ map[index] |= value << offset;
+}
+
+#define bitmap_set_value8 _kc_bitmap_set_value8
+
+#endif /* 5.5.0 */
+
+/*****************************************************************************/
+#if (LINUX_VERSION_CODE < KERNEL_VERSION(5,6,0))
+#ifdef HAVE_AF_XDP_SUPPORT
+#define xsk_umem_release_addr xsk_umem_discard_addr
+#define xsk_umem_release_addr_rq xsk_umem_discard_addr_rq
+#endif /* HAVE_AF_XDP_SUPPORT */
+#else /* >= 5.6.0 */
+#define HAVE_TX_TIMEOUT_TXQUEUE
+#endif /* 5.6.0 */
+
+/*****************************************************************************/
+#if (LINUX_VERSION_CODE < KERNEL_VERSION(5,7,0))
+u64 _kc_pci_get_dsn(struct pci_dev *dev);
+#define pci_get_dsn(dev) _kc_pci_get_dsn(dev)
+#if !(SLE_VERSION_CODE > SLE_VERSION(15,2,0)) && \
+ !((LINUX_VERSION_CODE == KERNEL_VERSION(5,3,18)) && \
+ (SLE_LOCALVERSION_CODE >= KERNEL_VERSION(14,0,0)))
+#define pci_aer_clear_nonfatal_status pci_cleanup_aer_uncorrect_error_status
+#endif
+
+#define cpu_latency_qos_update_request pm_qos_update_request
+#define cpu_latency_qos_add_request(arg1, arg2) pm_qos_add_request(arg1, PM_QOS_CPU_DMA_LATENCY, arg2)
+#define cpu_latency_qos_remove_request pm_qos_remove_request
+
+#ifndef DEVLINK_INFO_VERSION_GENERIC_FW_BUNDLE_ID
+#define DEVLINK_INFO_VERSION_GENERIC_FW_BUNDLE_ID "fw.bundle_id"
+#endif
+
+#ifdef HAVE_DEVLINK_REGIONS
+#if IS_ENABLED(CONFIG_NET_DEVLINK)
+#include <net/devlink.h>
+
+struct devlink_region_ops {
+ const char *name;
+ void (*destructor) (const void *data);
+};
+
+#ifndef devlink_region_create
+static inline struct devlink_region *_kc_devlink_region_create(struct devlink
+ *devlink,
+ const struct
+ devlink_region_ops
+ *ops,
+ u32
+ region_max_snapshots,
+ u64 region_size)
+{
+ return devlink_region_create(devlink, ops->name, region_max_snapshots,
+ region_size);
+}
+
+#define devlink_region_create _kc_devlink_region_create
+#endif /* devlink_region_create */
+#endif /* CONFIG_NET_DEVLINK */
+#define HAVE_DEVLINK_SNAPSHOT_CREATE_DESTRUCTOR
+#endif /* HAVE_DEVLINK_REGIONS */
+#else /* >= 5.7.0 */
+#define HAVE_DEVLINK_REGION_OPS_SNAPSHOT
+#define HAVE_ETHTOOL_COALESCE_PARAMS_SUPPORT
+#endif /* 5.7.0 */
+
+/*****************************************************************************/
+#if (LINUX_VERSION_CODE < KERNEL_VERSION(5,8,0))
+#define xdp_convert_buff_to_frame convert_to_xdp_frame
+#else /* >= 5.8.0 */
+#undef HAVE_AF_XDP_ZC_SUPPORT
+#endif /* 5.8.0 */
+
+#endif /* _KCOMPAT_H_ */
diff --git a/src/kcompat_ethtool.c b/src/kcompat_ethtool.c
new file mode 100644
index 0000000..b693daa
--- /dev/null
+++ b/src/kcompat_ethtool.c
@@ -0,0 +1,1150 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright(c) 1999 - 2020 Intel Corporation. */
+
+/*
+ * net/core/ethtool.c - Ethtool ioctl handler
+ * Copyright (c) 2003 Matthew Wilcox <matthew@wil.cx>
+ *
+ * This file is where we call all the ethtool_ops commands to get
+ * the information ethtool needs. We fall back to calling do_ioctl()
+ * for drivers which haven't been converted to ethtool_ops yet.
+ *
+ * It's GPL, stupid.
+ *
+ * Modification by sfeldma@pobox.com to work as backward compat
+ * solution for pre-ethtool_ops kernels.
+ * - copied struct ethtool_ops from ethtool.h
+ * - defined SET_ETHTOOL_OPS
+ * - put in some #ifndef NETIF_F_xxx wrappers
+ * - changes refs to dev->ethtool_ops to ethtool_ops
+ * - changed dev_ethtool to ethtool_ioctl
+ * - remove EXPORT_SYMBOL()s
+ * - added _kc_ prefix in built-in ethtool_op_xxx ops.
+ */
+
+#include <linux/module.h>
+#include <linux/types.h>
+#include <linux/errno.h>
+#include <linux/mii.h>
+#include <linux/ethtool.h>
+#include <linux/netdevice.h>
+#include <asm/uaccess.h>
+
+#include "kcompat.h"
+
+#undef SUPPORTED_10000baseT_Full
+#define SUPPORTED_10000baseT_Full (1 << 12)
+#undef ADVERTISED_10000baseT_Full
+#define ADVERTISED_10000baseT_Full (1 << 12)
+#undef SPEED_10000
+
+#undef ethtool_ops
+#define ethtool_ops _kc_ethtool_ops
+
+struct _kc_ethtool_ops {
+ int (*get_settings) (struct net_device *, struct ethtool_cmd *);
+ int (*set_settings) (struct net_device *, struct ethtool_cmd *);
+ void (*get_drvinfo) (struct net_device *, struct ethtool_drvinfo *);
+ int (*get_regs_len) (struct net_device *);
+ void (*get_regs) (struct net_device *, struct ethtool_regs *, void *);
+ void (*get_wol) (struct net_device *, struct ethtool_wolinfo *);
+ int (*set_wol) (struct net_device *, struct ethtool_wolinfo *);
+ u32 (*get_msglevel) (struct net_device *);
+ void (*set_msglevel) (struct net_device *, u32);
+ int (*nway_reset) (struct net_device *);
+ u32 (*get_link) (struct net_device *);
+ int (*get_eeprom_len) (struct net_device *);
+ int (*get_eeprom) (struct net_device *, struct ethtool_eeprom *, u8 *);
+ int (*set_eeprom) (struct net_device *, struct ethtool_eeprom *, u8 *);
+ int (*get_coalesce) (struct net_device *, struct ethtool_coalesce *);
+ int (*set_coalesce) (struct net_device *, struct ethtool_coalesce *);
+ void (*get_ringparam) (struct net_device *, struct ethtool_ringparam *);
+ int (*set_ringparam) (struct net_device *, struct ethtool_ringparam *);
+ void (*get_pauseparam) (struct net_device *,
+ struct ethtool_pauseparam *);
+ int (*set_pauseparam) (struct net_device *,
+ struct ethtool_pauseparam *);
+ u32 (*get_rx_csum) (struct net_device *);
+ int (*set_rx_csum) (struct net_device *, u32);
+ u32 (*get_tx_csum) (struct net_device *);
+ int (*set_tx_csum) (struct net_device *, u32);
+ u32 (*get_sg) (struct net_device *);
+ int (*set_sg) (struct net_device *, u32);
+ u32 (*get_tso) (struct net_device *);
+ int (*set_tso) (struct net_device *, u32);
+ int (*self_test_count) (struct net_device *);
+ void (*self_test) (struct net_device *, struct ethtool_test *, u64 *);
+ void (*get_strings) (struct net_device *, u32 stringset, u8 *);
+ int (*phys_id) (struct net_device *, u32);
+ int (*get_stats_count) (struct net_device *);
+ void (*get_ethtool_stats) (struct net_device *, struct ethtool_stats *,
+ u64 *);
+} *ethtool_ops = NULL;
+
+#undef SET_ETHTOOL_OPS
+#define SET_ETHTOOL_OPS(netdev, ops) (ethtool_ops = (ops))
+
+/*
+ * Some useful ethtool_ops methods that are device independent. If we find that
+ * all drivers want to do the same thing here, we can turn these into dev_()
+ * function calls.
+ */
+
+#undef ethtool_op_get_link
+#define ethtool_op_get_link _kc_ethtool_op_get_link
+u32 _kc_ethtool_op_get_link(struct net_device *dev)
+{
+ return netif_carrier_ok(dev) ? 1 : 0;
+}
+
+#undef ethtool_op_get_tx_csum
+#define ethtool_op_get_tx_csum _kc_ethtool_op_get_tx_csum
+u32 _kc_ethtool_op_get_tx_csum(struct net_device *dev)
+{
+#ifdef NETIF_F_IP_CSUM
+ return (dev->features & NETIF_F_IP_CSUM) != 0;
+#else
+ return 0;
+#endif
+}
+
+#undef ethtool_op_set_tx_csum
+#define ethtool_op_set_tx_csum _kc_ethtool_op_set_tx_csum
+int _kc_ethtool_op_set_tx_csum(struct net_device *dev, u32 data)
+{
+#ifdef NETIF_F_IP_CSUM
+ if (data)
+#ifdef NETIF_F_IPV6_CSUM
+ dev->features |= (NETIF_F_IP_CSUM | NETIF_F_IPV6_CSUM);
+ else
+ dev->features &= ~(NETIF_F_IP_CSUM | NETIF_F_IPV6_CSUM);
+#else
+ dev->features |= NETIF_F_IP_CSUM;
+ else
+ dev->features &= ~NETIF_F_IP_CSUM;
+#endif
+#endif
+
+ return 0;
+}
+
+#undef ethtool_op_get_sg
+#define ethtool_op_get_sg _kc_ethtool_op_get_sg
+u32 _kc_ethtool_op_get_sg(struct net_device *dev)
+{
+#ifdef NETIF_F_SG
+ return (dev->features & NETIF_F_SG) != 0;
+#else
+ return 0;
+#endif
+}
+
+#undef ethtool_op_set_sg
+#define ethtool_op_set_sg _kc_ethtool_op_set_sg
+int _kc_ethtool_op_set_sg(struct net_device *dev, u32 data)
+{
+#ifdef NETIF_F_SG
+ if (data)
+ dev->features |= NETIF_F_SG;
+ else
+ dev->features &= ~NETIF_F_SG;
+#endif
+
+ return 0;
+}
+
+#undef ethtool_op_get_tso
+#define ethtool_op_get_tso _kc_ethtool_op_get_tso
+u32 _kc_ethtool_op_get_tso(struct net_device *dev)
+{
+#ifdef NETIF_F_TSO
+ return (dev->features & NETIF_F_TSO) != 0;
+#else
+ return 0;
+#endif
+}
+
+#undef ethtool_op_set_tso
+#define ethtool_op_set_tso _kc_ethtool_op_set_tso
+int _kc_ethtool_op_set_tso(struct net_device *dev, u32 data)
+{
+#ifdef NETIF_F_TSO
+ if (data)
+ dev->features |= NETIF_F_TSO;
+ else
+ dev->features &= ~NETIF_F_TSO;
+#endif
+
+ return 0;
+}
+
+/* Handlers for each ethtool command */
+
+static int ethtool_get_settings(struct net_device *dev, void *useraddr)
+{
+ struct ethtool_cmd cmd = { ETHTOOL_GSET };
+ int err;
+
+ if (!ethtool_ops->get_settings)
+ return -EOPNOTSUPP;
+
+ err = ethtool_ops->get_settings(dev, &cmd);
+ if (err < 0)
+ return err;
+
+ if (copy_to_user(useraddr, &cmd, sizeof(cmd)))
+ return -EFAULT;
+ return 0;
+}
+
+static int ethtool_set_settings(struct net_device *dev, void *useraddr)
+{
+ struct ethtool_cmd cmd;
+
+ if (!ethtool_ops->set_settings)
+ return -EOPNOTSUPP;
+
+ if (copy_from_user(&cmd, useraddr, sizeof(cmd)))
+ return -EFAULT;
+
+ return ethtool_ops->set_settings(dev, &cmd);
+}
+
+static int ethtool_get_drvinfo(struct net_device *dev, void *useraddr)
+{
+ struct ethtool_drvinfo info;
+ struct ethtool_ops *ops = ethtool_ops;
+
+ if (!ops->get_drvinfo)
+ return -EOPNOTSUPP;
+
+ memset(&info, 0, sizeof(info));
+ info.cmd = ETHTOOL_GDRVINFO;
+ ops->get_drvinfo(dev, &info);
+
+ if (ops->self_test_count)
+ info.testinfo_len = ops->self_test_count(dev);
+ if (ops->get_stats_count)
+ info.n_stats = ops->get_stats_count(dev);
+ if (ops->get_regs_len)
+ info.regdump_len = ops->get_regs_len(dev);
+ if (ops->get_eeprom_len)
+ info.eedump_len = ops->get_eeprom_len(dev);
+
+ if (copy_to_user(useraddr, &info, sizeof(info)))
+ return -EFAULT;
+ return 0;
+}
+
+static int ethtool_get_regs(struct net_device *dev, char *useraddr)
+{
+ struct ethtool_regs regs;
+ struct ethtool_ops *ops = ethtool_ops;
+ void *regbuf;
+ int reglen, ret;
+
+ if (!ops->get_regs || !ops->get_regs_len)
+ return -EOPNOTSUPP;
+
+ if (copy_from_user(&regs, useraddr, sizeof(regs)))
+ return -EFAULT;
+
+ reglen = ops->get_regs_len(dev);
+ if (regs.len > reglen)
+ regs.len = reglen;
+
+ regbuf = kmalloc(reglen, GFP_USER);
+ if (!regbuf)
+ return -ENOMEM;
+
+ ops->get_regs(dev, &regs, regbuf);
+
+ ret = -EFAULT;
+ if (copy_to_user(useraddr, &regs, sizeof(regs)))
+ goto out;
+ useraddr += offsetof(struct ethtool_regs, data);
+ if (copy_to_user(useraddr, regbuf, reglen))
+ goto out;
+ ret = 0;
+
+out:
+ kfree(regbuf);
+ return ret;
+}
+
+static int ethtool_get_wol(struct net_device *dev, char *useraddr)
+{
+ struct ethtool_wolinfo wol = { ETHTOOL_GWOL };
+
+ if (!ethtool_ops->get_wol)
+ return -EOPNOTSUPP;
+
+ ethtool_ops->get_wol(dev, &wol);
+
+ if (copy_to_user(useraddr, &wol, sizeof(wol)))
+ return -EFAULT;
+ return 0;
+}
+
+static int ethtool_set_wol(struct net_device *dev, char *useraddr)
+{
+ struct ethtool_wolinfo wol;
+
+ if (!ethtool_ops->set_wol)
+ return -EOPNOTSUPP;
+
+ if (copy_from_user(&wol, useraddr, sizeof(wol)))
+ return -EFAULT;
+
+ return ethtool_ops->set_wol(dev, &wol);
+}
+
+static int ethtool_get_msglevel(struct net_device *dev, char *useraddr)
+{
+ struct ethtool_value edata = { ETHTOOL_GMSGLVL };
+
+ if (!ethtool_ops->get_msglevel)
+ return -EOPNOTSUPP;
+
+ edata.data = ethtool_ops->get_msglevel(dev);
+
+ if (copy_to_user(useraddr, &edata, sizeof(edata)))
+ return -EFAULT;
+ return 0;
+}
+
+static int ethtool_set_msglevel(struct net_device *dev, char *useraddr)
+{
+ struct ethtool_value edata;
+
+ if (!ethtool_ops->set_msglevel)
+ return -EOPNOTSUPP;
+
+ if (copy_from_user(&edata, useraddr, sizeof(edata)))
+ return -EFAULT;
+
+ ethtool_ops->set_msglevel(dev, edata.data);
+ return 0;
+}
+
+static int ethtool_nway_reset(struct net_device *dev)
+{
+ if (!ethtool_ops->nway_reset)
+ return -EOPNOTSUPP;
+
+ return ethtool_ops->nway_reset(dev);
+}
+
+static int ethtool_get_link(struct net_device *dev, void *useraddr)
+{
+ struct ethtool_value edata = { ETHTOOL_GLINK };
+
+ if (!ethtool_ops->get_link)
+ return -EOPNOTSUPP;
+
+ edata.data = ethtool_ops->get_link(dev);
+
+ if (copy_to_user(useraddr, &edata, sizeof(edata)))
+ return -EFAULT;
+ return 0;
+}
+
+static int ethtool_get_eeprom(struct net_device *dev, void *useraddr)
+{
+ struct ethtool_eeprom eeprom;
+ struct ethtool_ops *ops = ethtool_ops;
+ u8 *data;
+ int ret;
+
+ if (!ops->get_eeprom || !ops->get_eeprom_len)
+ return -EOPNOTSUPP;
+
+ if (copy_from_user(&eeprom, useraddr, sizeof(eeprom)))
+ return -EFAULT;
+
+ /* Check for wrap and zero */
+ if (eeprom.offset + eeprom.len <= eeprom.offset)
+ return -EINVAL;
+
+ /* Check for exceeding total eeprom len */
+ if (eeprom.offset + eeprom.len > ops->get_eeprom_len(dev))
+ return -EINVAL;
+
+ data = kmalloc(eeprom.len, GFP_USER);
+ if (!data)
+ return -ENOMEM;
+
+ ret = -EFAULT;
+ if (copy_from_user(data, useraddr + sizeof(eeprom), eeprom.len))
+ goto out;
+
+ ret = ops->get_eeprom(dev, &eeprom, data);
+ if (ret)
+ goto out;
+
+ ret = -EFAULT;
+ if (copy_to_user(useraddr, &eeprom, sizeof(eeprom)))
+ goto out;
+ if (copy_to_user(useraddr + sizeof(eeprom), data, eeprom.len))
+ goto out;
+ ret = 0;
+
+out:
+ kfree(data);
+ return ret;
+}
+
+static int ethtool_set_eeprom(struct net_device *dev, void *useraddr)
+{
+ struct ethtool_eeprom eeprom;
+ struct ethtool_ops *ops = ethtool_ops;
+ u8 *data;
+ int ret;
+
+ if (!ops->set_eeprom || !ops->get_eeprom_len)
+ return -EOPNOTSUPP;
+
+ if (copy_from_user(&eeprom, useraddr, sizeof(eeprom)))
+ return -EFAULT;
+
+ /* Check for wrap and zero */
+ if (eeprom.offset + eeprom.len <= eeprom.offset)
+ return -EINVAL;
+
+ /* Check for exceeding total eeprom len */
+ if (eeprom.offset + eeprom.len > ops->get_eeprom_len(dev))
+ return -EINVAL;
+
+ data = kmalloc(eeprom.len, GFP_USER);
+ if (!data)
+ return -ENOMEM;
+
+ ret = -EFAULT;
+ if (copy_from_user(data, useraddr + sizeof(eeprom), eeprom.len))
+ goto out;
+
+ ret = ops->set_eeprom(dev, &eeprom, data);
+ if (ret)
+ goto out;
+
+ if (copy_to_user(useraddr + sizeof(eeprom), data, eeprom.len))
+ ret = -EFAULT;
+
+out:
+ kfree(data);
+ return ret;
+}
+
+static int ethtool_get_coalesce(struct net_device *dev, void *useraddr)
+{
+ struct ethtool_coalesce coalesce = { ETHTOOL_GCOALESCE };
+
+ if (!ethtool_ops->get_coalesce)
+ return -EOPNOTSUPP;
+
+ ethtool_ops->get_coalesce(dev, &coalesce);
+
+ if (copy_to_user(useraddr, &coalesce, sizeof(coalesce)))
+ return -EFAULT;
+ return 0;
+}
+
+static int ethtool_set_coalesce(struct net_device *dev, void *useraddr)
+{
+ struct ethtool_coalesce coalesce;
+
+ if (!ethtool_ops->get_coalesce)
+ return -EOPNOTSUPP;
+
+ if (copy_from_user(&coalesce, useraddr, sizeof(coalesce)))
+ return -EFAULT;
+
+ return ethtool_ops->set_coalesce(dev, &coalesce);
+}
+
+static int ethtool_get_ringparam(struct net_device *dev, void *useraddr)
+{
+ struct ethtool_ringparam ringparam = { ETHTOOL_GRINGPARAM };
+
+ if (!ethtool_ops->get_ringparam)
+ return -EOPNOTSUPP;
+
+ ethtool_ops->get_ringparam(dev, &ringparam);
+
+ if (copy_to_user(useraddr, &ringparam, sizeof(ringparam)))
+ return -EFAULT;
+ return 0;
+}
+
+static int ethtool_set_ringparam(struct net_device *dev, void *useraddr)
+{
+ struct ethtool_ringparam ringparam;
+
+ if (!ethtool_ops->get_ringparam)
+ return -EOPNOTSUPP;
+
+ if (copy_from_user(&ringparam, useraddr, sizeof(ringparam)))
+ return -EFAULT;
+
+ return ethtool_ops->set_ringparam(dev, &ringparam);
+}
+
+static int ethtool_get_pauseparam(struct net_device *dev, void *useraddr)
+{
+ struct ethtool_pauseparam pauseparam = { ETHTOOL_GPAUSEPARAM };
+
+ if (!ethtool_ops->get_pauseparam)
+ return -EOPNOTSUPP;
+
+ ethtool_ops->get_pauseparam(dev, &pauseparam);
+
+ if (copy_to_user(useraddr, &pauseparam, sizeof(pauseparam)))
+ return -EFAULT;
+ return 0;
+}
+
+static int ethtool_set_pauseparam(struct net_device *dev, void *useraddr)
+{
+ struct ethtool_pauseparam pauseparam;
+
+ if (!ethtool_ops->get_pauseparam)
+ return -EOPNOTSUPP;
+
+ if (copy_from_user(&pauseparam, useraddr, sizeof(pauseparam)))
+ return -EFAULT;
+
+ return ethtool_ops->set_pauseparam(dev, &pauseparam);
+}
+
+static int ethtool_get_rx_csum(struct net_device *dev, char *useraddr)
+{
+ struct ethtool_value edata = { ETHTOOL_GRXCSUM };
+
+ if (!ethtool_ops->get_rx_csum)
+ return -EOPNOTSUPP;
+
+ edata.data = ethtool_ops->get_rx_csum(dev);
+
+ if (copy_to_user(useraddr, &edata, sizeof(edata)))
+ return -EFAULT;
+ return 0;
+}
+
+static int ethtool_set_rx_csum(struct net_device *dev, char *useraddr)
+{
+ struct ethtool_value edata;
+
+ if (!ethtool_ops->set_rx_csum)
+ return -EOPNOTSUPP;
+
+ if (copy_from_user(&edata, useraddr, sizeof(edata)))
+ return -EFAULT;
+
+ ethtool_ops->set_rx_csum(dev, edata.data);
+ return 0;
+}
+
+static int ethtool_get_tx_csum(struct net_device *dev, char *useraddr)
+{
+ struct ethtool_value edata = { ETHTOOL_GTXCSUM };
+
+ if (!ethtool_ops->get_tx_csum)
+ return -EOPNOTSUPP;
+
+ edata.data = ethtool_ops->get_tx_csum(dev);
+
+ if (copy_to_user(useraddr, &edata, sizeof(edata)))
+ return -EFAULT;
+ return 0;
+}
+
+static int ethtool_set_tx_csum(struct net_device *dev, char *useraddr)
+{
+ struct ethtool_value edata;
+
+ if (!ethtool_ops->set_tx_csum)
+ return -EOPNOTSUPP;
+
+ if (copy_from_user(&edata, useraddr, sizeof(edata)))
+ return -EFAULT;
+
+ return ethtool_ops->set_tx_csum(dev, edata.data);
+}
+
+static int ethtool_get_sg(struct net_device *dev, char *useraddr)
+{
+ struct ethtool_value edata = { ETHTOOL_GSG };
+
+ if (!ethtool_ops->get_sg)
+ return -EOPNOTSUPP;
+
+ edata.data = ethtool_ops->get_sg(dev);
+
+ if (copy_to_user(useraddr, &edata, sizeof(edata)))
+ return -EFAULT;
+ return 0;
+}
+
+static int ethtool_set_sg(struct net_device *dev, char *useraddr)
+{
+ struct ethtool_value edata;
+
+ if (!ethtool_ops->set_sg)
+ return -EOPNOTSUPP;
+
+ if (copy_from_user(&edata, useraddr, sizeof(edata)))
+ return -EFAULT;
+
+ return ethtool_ops->set_sg(dev, edata.data);
+}
+
+static int ethtool_get_tso(struct net_device *dev, char *useraddr)
+{
+ struct ethtool_value edata = { ETHTOOL_GTSO };
+
+ if (!ethtool_ops->get_tso)
+ return -EOPNOTSUPP;
+
+ edata.data = ethtool_ops->get_tso(dev);
+
+ if (copy_to_user(useraddr, &edata, sizeof(edata)))
+ return -EFAULT;
+ return 0;
+}
+
+static int ethtool_set_tso(struct net_device *dev, char *useraddr)
+{
+ struct ethtool_value edata;
+
+ if (!ethtool_ops->set_tso)
+ return -EOPNOTSUPP;
+
+ if (copy_from_user(&edata, useraddr, sizeof(edata)))
+ return -EFAULT;
+
+ return ethtool_ops->set_tso(dev, edata.data);
+}
+
+static int ethtool_self_test(struct net_device *dev, char *useraddr)
+{
+ struct ethtool_test test;
+ struct ethtool_ops *ops = ethtool_ops;
+ u64 *data;
+ int ret;
+
+ if (!ops->self_test || !ops->self_test_count)
+ return -EOPNOTSUPP;
+
+ if (copy_from_user(&test, useraddr, sizeof(test)))
+ return -EFAULT;
+
+ test.len = ops->self_test_count(dev);
+ data = kmalloc(test.len * sizeof(u64), GFP_USER);
+ if (!data)
+ return -ENOMEM;
+
+ ops->self_test(dev, &test, data);
+
+ ret = -EFAULT;
+ if (copy_to_user(useraddr, &test, sizeof(test)))
+ goto out;
+ useraddr += sizeof(test);
+ if (copy_to_user(useraddr, data, test.len * sizeof(u64)))
+ goto out;
+ ret = 0;
+
+out:
+ kfree(data);
+ return ret;
+}
+
+static int ethtool_get_strings(struct net_device *dev, void *useraddr)
+{
+ struct ethtool_gstrings gstrings;
+ struct ethtool_ops *ops = ethtool_ops;
+ u8 *data;
+ int ret;
+
+ if (!ops->get_strings)
+ return -EOPNOTSUPP;
+
+ if (copy_from_user(&gstrings, useraddr, sizeof(gstrings)))
+ return -EFAULT;
+
+ switch (gstrings.string_set) {
+ case ETH_SS_TEST:
+ if (!ops->self_test_count)
+ return -EOPNOTSUPP;
+ gstrings.len = ops->self_test_count(dev);
+ break;
+ case ETH_SS_STATS:
+ if (!ops->get_stats_count)
+ return -EOPNOTSUPP;
+ gstrings.len = ops->get_stats_count(dev);
+ break;
+ default:
+ return -EINVAL;
+ }
+
+ data = kmalloc(gstrings.len * ETH_GSTRING_LEN, GFP_USER);
+ if (!data)
+ return -ENOMEM;
+
+ ops->get_strings(dev, gstrings.string_set, data);
+
+ ret = -EFAULT;
+ if (copy_to_user(useraddr, &gstrings, sizeof(gstrings)))
+ goto out;
+ useraddr += sizeof(gstrings);
+ if (copy_to_user(useraddr, data, gstrings.len * ETH_GSTRING_LEN))
+ goto out;
+ ret = 0;
+
+out:
+ kfree(data);
+ return ret;
+}
+
+static int ethtool_phys_id(struct net_device *dev, void *useraddr)
+{
+ struct ethtool_value id;
+
+ if (!ethtool_ops->phys_id)
+ return -EOPNOTSUPP;
+
+ if (copy_from_user(&id, useraddr, sizeof(id)))
+ return -EFAULT;
+
+ return ethtool_ops->phys_id(dev, id.data);
+}
+
+static int ethtool_get_stats(struct net_device *dev, void *useraddr)
+{
+ struct ethtool_stats stats;
+ struct ethtool_ops *ops = ethtool_ops;
+ u64 *data;
+ int ret;
+
+ if (!ops->get_ethtool_stats || !ops->get_stats_count)
+ return -EOPNOTSUPP;
+
+ if (copy_from_user(&stats, useraddr, sizeof(stats)))
+ return -EFAULT;
+
+ stats.n_stats = ops->get_stats_count(dev);
+ data = kmalloc(stats.n_stats * sizeof(u64), GFP_USER);
+ if (!data)
+ return -ENOMEM;
+
+ ops->get_ethtool_stats(dev, &stats, data);
+
+ ret = -EFAULT;
+ if (copy_to_user(useraddr, &stats, sizeof(stats)))
+ goto out;
+ useraddr += sizeof(stats);
+ if (copy_to_user(useraddr, data, stats.n_stats * sizeof(u64)))
+ goto out;
+ ret = 0;
+
+out:
+ kfree(data);
+ return ret;
+}
+
+/* The main entry point in this file. Called from net/core/dev.c */
+
+#define ETHTOOL_OPS_COMPAT
+int ethtool_ioctl(struct ifreq *ifr)
+{
+ struct net_device *dev = __dev_get_by_name(ifr->ifr_name);
+ void *useraddr = (void *)ifr->ifr_data;
+ u32 ethcmd;
+
+ /*
+ * XXX: This can be pushed down into the ethtool_* handlers that
+ * need it. Keep existing behavior for the moment.
+ */
+ if (!capable(CAP_NET_ADMIN))
+ return -EPERM;
+
+ if (!dev || !netif_device_present(dev))
+ return -ENODEV;
+
+ if (copy_from_user(&ethcmd, useraddr, sizeof(ethcmd)))
+ return -EFAULT;
+
+ switch (ethcmd) {
+ case ETHTOOL_GSET:
+ return ethtool_get_settings(dev, useraddr);
+ case ETHTOOL_SSET:
+ return ethtool_set_settings(dev, useraddr);
+ case ETHTOOL_GDRVINFO:
+ return ethtool_get_drvinfo(dev, useraddr);
+ case ETHTOOL_GREGS:
+ return ethtool_get_regs(dev, useraddr);
+ case ETHTOOL_GWOL:
+ return ethtool_get_wol(dev, useraddr);
+ case ETHTOOL_SWOL:
+ return ethtool_set_wol(dev, useraddr);
+ case ETHTOOL_GMSGLVL:
+ return ethtool_get_msglevel(dev, useraddr);
+ case ETHTOOL_SMSGLVL:
+ return ethtool_set_msglevel(dev, useraddr);
+ case ETHTOOL_NWAY_RST:
+ return ethtool_nway_reset(dev);
+ case ETHTOOL_GLINK:
+ return ethtool_get_link(dev, useraddr);
+ case ETHTOOL_GEEPROM:
+ return ethtool_get_eeprom(dev, useraddr);
+ case ETHTOOL_SEEPROM:
+ return ethtool_set_eeprom(dev, useraddr);
+ case ETHTOOL_GCOALESCE:
+ return ethtool_get_coalesce(dev, useraddr);
+ case ETHTOOL_SCOALESCE:
+ return ethtool_set_coalesce(dev, useraddr);
+ case ETHTOOL_GRINGPARAM:
+ return ethtool_get_ringparam(dev, useraddr);
+ case ETHTOOL_SRINGPARAM:
+ return ethtool_set_ringparam(dev, useraddr);
+ case ETHTOOL_GPAUSEPARAM:
+ return ethtool_get_pauseparam(dev, useraddr);
+ case ETHTOOL_SPAUSEPARAM:
+ return ethtool_set_pauseparam(dev, useraddr);
+ case ETHTOOL_GRXCSUM:
+ return ethtool_get_rx_csum(dev, useraddr);
+ case ETHTOOL_SRXCSUM:
+ return ethtool_set_rx_csum(dev, useraddr);
+ case ETHTOOL_GTXCSUM:
+ return ethtool_get_tx_csum(dev, useraddr);
+ case ETHTOOL_STXCSUM:
+ return ethtool_set_tx_csum(dev, useraddr);
+ case ETHTOOL_GSG:
+ return ethtool_get_sg(dev, useraddr);
+ case ETHTOOL_SSG:
+ return ethtool_set_sg(dev, useraddr);
+ case ETHTOOL_GTSO:
+ return ethtool_get_tso(dev, useraddr);
+ case ETHTOOL_STSO:
+ return ethtool_set_tso(dev, useraddr);
+ case ETHTOOL_TEST:
+ return ethtool_self_test(dev, useraddr);
+ case ETHTOOL_GSTRINGS:
+ return ethtool_get_strings(dev, useraddr);
+ case ETHTOOL_PHYS_ID:
+ return ethtool_phys_id(dev, useraddr);
+ case ETHTOOL_GSTATS:
+ return ethtool_get_stats(dev, useraddr);
+ default:
+ return -EOPNOTSUPP;
+ }
+
+ return -EOPNOTSUPP;
+}
+
+#define mii_if_info _kc_mii_if_info
+struct _kc_mii_if_info {
+ int phy_id;
+ int advertising;
+ int phy_id_mask;
+ int reg_num_mask;
+
+ unsigned int full_duplex:1; /* is full duplex? */
+ unsigned int force_media:1; /* is autoneg. disabled? */
+
+ struct net_device *dev;
+ int (*mdio_read) (struct net_device * dev, int phy_id, int location);
+ void (*mdio_write) (struct net_device * dev, int phy_id, int location,
+ int val);
+};
+
+struct ethtool_cmd;
+struct mii_ioctl_data;
+
+#undef mii_link_ok
+#define mii_link_ok _kc_mii_link_ok
+#undef mii_nway_restart
+#define mii_nway_restart _kc_mii_nway_restart
+#undef mii_ethtool_gset
+#define mii_ethtool_gset _kc_mii_ethtool_gset
+#undef mii_ethtool_sset
+#define mii_ethtool_sset _kc_mii_ethtool_sset
+#undef mii_check_link
+#define mii_check_link _kc_mii_check_link
+extern int _kc_mii_link_ok(struct mii_if_info *mii);
+extern int _kc_mii_nway_restart(struct mii_if_info *mii);
+extern int _kc_mii_ethtool_gset(struct mii_if_info *mii,
+ struct ethtool_cmd *ecmd);
+extern int _kc_mii_ethtool_sset(struct mii_if_info *mii,
+ struct ethtool_cmd *ecmd);
+extern void _kc_mii_check_link(struct mii_if_info *mii);
+#if ( LINUX_VERSION_CODE > KERNEL_VERSION(2,4,6) )
+#undef generic_mii_ioctl
+#define generic_mii_ioctl _kc_generic_mii_ioctl
+extern int _kc_generic_mii_ioctl(struct mii_if_info *mii_if,
+ struct mii_ioctl_data *mii_data, int cmd,
+ unsigned int *duplex_changed);
+#endif /* > 2.4.6 */
+
+struct _kc_pci_dev_ext {
+ struct pci_dev *dev;
+ void *pci_drvdata;
+ struct pci_driver *driver;
+};
+
+struct _kc_net_dev_ext {
+ struct net_device *dev;
+ unsigned int carrier;
+};
+
+/**************************************/
+/* mii support */
+
+int _kc_mii_ethtool_gset(struct mii_if_info *mii, struct ethtool_cmd *ecmd)
+{
+ struct net_device *dev = mii->dev;
+ u32 advert, bmcr, lpa, nego;
+
+ ecmd->supported =
+ (SUPPORTED_10baseT_Half | SUPPORTED_10baseT_Full |
+ SUPPORTED_100baseT_Half | SUPPORTED_100baseT_Full |
+ SUPPORTED_Autoneg | SUPPORTED_TP | SUPPORTED_MII);
+
+ /* only supports twisted-pair */
+ ecmd->port = PORT_MII;
+
+ /* only supports internal transceiver */
+ ecmd->transceiver = XCVR_INTERNAL;
+
+ /* this isn't fully supported at higher layers */
+ ecmd->phy_address = mii->phy_id;
+
+ ecmd->advertising = ADVERTISED_TP | ADVERTISED_MII;
+ advert = mii->mdio_read(dev, mii->phy_id, MII_ADVERTISE);
+ if (advert & ADVERTISE_10HALF)
+ ecmd->advertising |= ADVERTISED_10baseT_Half;
+ if (advert & ADVERTISE_10FULL)
+ ecmd->advertising |= ADVERTISED_10baseT_Full;
+ if (advert & ADVERTISE_100HALF)
+ ecmd->advertising |= ADVERTISED_100baseT_Half;
+ if (advert & ADVERTISE_100FULL)
+ ecmd->advertising |= ADVERTISED_100baseT_Full;
+
+ bmcr = mii->mdio_read(dev, mii->phy_id, MII_BMCR);
+ lpa = mii->mdio_read(dev, mii->phy_id, MII_LPA);
+ if (bmcr & BMCR_ANENABLE) {
+ ecmd->advertising |= ADVERTISED_Autoneg;
+ ecmd->autoneg = AUTONEG_ENABLE;
+
+ nego = mii_nway_result(advert & lpa);
+ if (nego == LPA_100FULL || nego == LPA_100HALF)
+ ecmd->speed = SPEED_100;
+ else
+ ecmd->speed = SPEED_10;
+ if (nego == LPA_100FULL || nego == LPA_10FULL) {
+ ecmd->duplex = DUPLEX_FULL;
+ mii->full_duplex = 1;
+ } else {
+ ecmd->duplex = DUPLEX_HALF;
+ mii->full_duplex = 0;
+ }
+ } else {
+ ecmd->autoneg = AUTONEG_DISABLE;
+
+ ecmd->speed = (bmcr & BMCR_SPEED100) ? SPEED_100 : SPEED_10;
+ ecmd->duplex =
+ (bmcr & BMCR_FULLDPLX) ? DUPLEX_FULL : DUPLEX_HALF;
+ }
+
+ /* ignore maxtxpkt, maxrxpkt for now */
+
+ return 0;
+}
+
+int _kc_mii_ethtool_sset(struct mii_if_info *mii, struct ethtool_cmd *ecmd)
+{
+ struct net_device *dev = mii->dev;
+
+ if (ecmd->speed != SPEED_10 && ecmd->speed != SPEED_100)
+ return -EINVAL;
+ if (ecmd->duplex != DUPLEX_HALF && ecmd->duplex != DUPLEX_FULL)
+ return -EINVAL;
+ if (ecmd->port != PORT_MII)
+ return -EINVAL;
+ if (ecmd->transceiver != XCVR_INTERNAL)
+ return -EINVAL;
+ if (ecmd->phy_address != mii->phy_id)
+ return -EINVAL;
+ if (ecmd->autoneg != AUTONEG_DISABLE && ecmd->autoneg != AUTONEG_ENABLE)
+ return -EINVAL;
+
+ /* ignore supported, maxtxpkt, maxrxpkt */
+
+ if (ecmd->autoneg == AUTONEG_ENABLE) {
+ u32 bmcr, advert, tmp;
+
+ if ((ecmd->advertising & (ADVERTISED_10baseT_Half |
+ ADVERTISED_10baseT_Full |
+ ADVERTISED_100baseT_Half |
+ ADVERTISED_100baseT_Full)) == 0)
+ return -EINVAL;
+
+ /* advertise only what has been requested */
+ advert = mii->mdio_read(dev, mii->phy_id, MII_ADVERTISE);
+ tmp = advert & ~(ADVERTISE_ALL | ADVERTISE_100BASE4);
+ if (ADVERTISED_10baseT_Half)
+ tmp |= ADVERTISE_10HALF;
+ if (ADVERTISED_10baseT_Full)
+ tmp |= ADVERTISE_10FULL;
+ if (ADVERTISED_100baseT_Half)
+ tmp |= ADVERTISE_100HALF;
+ if (ADVERTISED_100baseT_Full)
+ tmp |= ADVERTISE_100FULL;
+ if (advert != tmp) {
+ mii->mdio_write(dev, mii->phy_id, MII_ADVERTISE, tmp);
+ mii->advertising = tmp;
+ }
+
+ /* turn on autonegotiation, and force a renegotiate */
+ bmcr = mii->mdio_read(dev, mii->phy_id, MII_BMCR);
+ bmcr |= (BMCR_ANENABLE | BMCR_ANRESTART);
+ mii->mdio_write(dev, mii->phy_id, MII_BMCR, bmcr);
+
+ mii->force_media = 0;
+ } else {
+ u32 bmcr, tmp;
+
+ /* turn off auto negotiation, set speed and duplexity */
+ bmcr = mii->mdio_read(dev, mii->phy_id, MII_BMCR);
+ tmp = bmcr & ~(BMCR_ANENABLE | BMCR_SPEED100 | BMCR_FULLDPLX);
+ if (ecmd->speed == SPEED_100)
+ tmp |= BMCR_SPEED100;
+ if (ecmd->duplex == DUPLEX_FULL) {
+ tmp |= BMCR_FULLDPLX;
+ mii->full_duplex = 1;
+ } else
+ mii->full_duplex = 0;
+ if (bmcr != tmp)
+ mii->mdio_write(dev, mii->phy_id, MII_BMCR, tmp);
+
+ mii->force_media = 1;
+ }
+ return 0;
+}
+
+int _kc_mii_link_ok(struct mii_if_info *mii)
+{
+ /* first, a dummy read, needed to latch some MII phys */
+ mii->mdio_read(mii->dev, mii->phy_id, MII_BMSR);
+ if (mii->mdio_read(mii->dev, mii->phy_id, MII_BMSR) & BMSR_LSTATUS)
+ return 1;
+ return 0;
+}
+
+int _kc_mii_nway_restart(struct mii_if_info *mii)
+{
+ int bmcr;
+ int r = -EINVAL;
+
+ /* if autoneg is off, it's an error */
+ bmcr = mii->mdio_read(mii->dev, mii->phy_id, MII_BMCR);
+
+ if (bmcr & BMCR_ANENABLE) {
+ bmcr |= BMCR_ANRESTART;
+ mii->mdio_write(mii->dev, mii->phy_id, MII_BMCR, bmcr);
+ r = 0;
+ }
+
+ return r;
+}
+
+void _kc_mii_check_link(struct mii_if_info *mii)
+{
+ int cur_link = mii_link_ok(mii);
+ int prev_link = netif_carrier_ok(mii->dev);
+
+ if (cur_link && !prev_link)
+ netif_carrier_on(mii->dev);
+ else if (prev_link && !cur_link)
+ netif_carrier_off(mii->dev);
+}
+
+#if ( LINUX_VERSION_CODE > KERNEL_VERSION(2,4,6) )
+int _kc_generic_mii_ioctl(struct mii_if_info *mii_if,
+ struct mii_ioctl_data *mii_data, int cmd,
+ unsigned int *duplex_chg_out)
+{
+ int rc = 0;
+ unsigned int duplex_changed = 0;
+
+ if (duplex_chg_out)
+ *duplex_chg_out = 0;
+
+ mii_data->phy_id &= mii_if->phy_id_mask;
+ mii_data->reg_num &= mii_if->reg_num_mask;
+
+ switch (cmd) {
+ case SIOCDEVPRIVATE: /* binary compat, remove in 2.5 */
+ case SIOCGMIIPHY:
+ mii_data->phy_id = mii_if->phy_id;
+ /* fall through */
+
+ case SIOCDEVPRIVATE + 1: /* binary compat, remove in 2.5 */
+ case SIOCGMIIREG:
+ mii_data->val_out =
+ mii_if->mdio_read(mii_if->dev, mii_data->phy_id,
+ mii_data->reg_num);
+ break;
+
+ case SIOCDEVPRIVATE + 2: /* binary compat, remove in 2.5 */
+ case SIOCSMIIREG:{
+ u16 val = mii_data->val_in;
+
+ if (!capable(CAP_NET_ADMIN))
+ return -EPERM;
+
+ if (mii_data->phy_id == mii_if->phy_id) {
+ switch (mii_data->reg_num) {
+ case MII_BMCR:{
+ unsigned int new_duplex = 0;
+ if (val &
+ (BMCR_RESET |
+ BMCR_ANENABLE))
+ mii_if->force_media = 0;
+ else
+ mii_if->force_media = 1;
+ if (mii_if->force_media &&
+ (val & BMCR_FULLDPLX))
+ new_duplex = 1;
+ if (mii_if->full_duplex !=
+ new_duplex) {
+ duplex_changed = 1;
+ mii_if->full_duplex =
+ new_duplex;
+ }
+ break;
+ }
+ case MII_ADVERTISE:
+ mii_if->advertising = val;
+ break;
+ default:
+ /* do nothing */
+ break;
+ }
+ }
+
+ mii_if->mdio_write(mii_if->dev, mii_data->phy_id,
+ mii_data->reg_num, val);
+ break;
+ }
+
+ default:
+ rc = -EOPNOTSUPP;
+ break;
+ }
+
+ if ((rc == 0) && (duplex_chg_out) && (duplex_changed))
+ *duplex_chg_out = 1;
+
+ return rc;
+}
+#endif /* > 2.4.6 */
diff --git a/src/kcompat_overflow.h b/src/kcompat_overflow.h
new file mode 100644
index 0000000..9e34b3e
--- /dev/null
+++ b/src/kcompat_overflow.h
@@ -0,0 +1,315 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/* Copyright(c) 1999 - 2020 Intel Corporation. */
+
+/* SPDX-License-Identifier: GPL-2.0 OR MIT */
+#ifndef __LINUX_OVERFLOW_H
+#define __LINUX_OVERFLOW_H
+
+#include <linux/compiler.h>
+
+/*
+ * In the fallback code below, we need to compute the minimum and
+ * maximum values representable in a given type. These macros may also
+ * be useful elsewhere, so we provide them outside the
+ * COMPILER_HAS_GENERIC_BUILTIN_OVERFLOW block.
+ *
+ * It would seem more obvious to do something like
+ *
+ * #define type_min(T) (T)(is_signed_type(T) ? (T)1 << (8*sizeof(T)-1) : 0)
+ * #define type_max(T) (T)(is_signed_type(T) ? ((T)1 << (8*sizeof(T)-1)) - 1 : ~(T)0)
+ *
+ * Unfortunately, the middle expressions, strictly speaking, have
+ * undefined behaviour, and at least some versions of gcc warn about
+ * the type_max expression (but not if -fsanitize=undefined is in
+ * effect; in that case, the warning is deferred to runtime...).
+ *
+ * The slightly excessive casting in type_min is to make sure the
+ * macros also produce sensible values for the exotic type _Bool. [The
+ * overflow checkers only almost work for _Bool, but that's
+ * a-feature-not-a-bug, since people shouldn't be doing arithmetic on
+ * _Bools. Besides, the gcc builtins don't allow _Bool* as third
+ * argument.]
+ *
+ * Idea stolen from
+ * https://mail-index.netbsd.org/tech-misc/2007/02/05/0000.html -
+ * credit to Christian Biere.
+ */
+/* The is_signed_type macro is redefined in a few places in various kernel
+ * headers. If this header is included at the same time as one of those, we
+ * will generate compilation warnings. Since we can't fix every old kernel,
+ * rename is_signed_type for this file to _kc_is_signed_type. This prevents
+ * the macro name collision, and should be safe since our drivers do not
+ * directly call the macro.
+ */
+#define _kc_is_signed_type(type) (((type)(-1)) < (type)1)
+#define __type_half_max(type) ((type)1 << (8*sizeof(type) - 1 - _kc_is_signed_type(type)))
+#define type_max(T) ((T)((__type_half_max(T) - 1) + __type_half_max(T)))
+#define type_min(T) ((T)((T)-type_max(T)-(T)1))
+
+#ifdef COMPILER_HAS_GENERIC_BUILTIN_OVERFLOW
+/*
+ * For simplicity and code hygiene, the fallback code below insists on
+ * a, b and *d having the same type (similar to the min() and max()
+ * macros), whereas gcc's type-generic overflow checkers accept
+ * different types. Hence we don't just make check_add_overflow an
+ * alias for __builtin_add_overflow, but add type checks similar to
+ * below.
+ */
+#define check_add_overflow(a, b, d) ({ \
+ typeof(a) __a = (a); \
+ typeof(b) __b = (b); \
+ typeof(d) __d = (d); \
+ (void) (&__a == &__b); \
+ (void) (&__a == __d); \
+ __builtin_add_overflow(__a, __b, __d); \
+})
+
+#define check_sub_overflow(a, b, d) ({ \
+ typeof(a) __a = (a); \
+ typeof(b) __b = (b); \
+ typeof(d) __d = (d); \
+ (void) (&__a == &__b); \
+ (void) (&__a == __d); \
+ __builtin_sub_overflow(__a, __b, __d); \
+})
+
+#define check_mul_overflow(a, b, d) ({ \
+ typeof(a) __a = (a); \
+ typeof(b) __b = (b); \
+ typeof(d) __d = (d); \
+ (void) (&__a == &__b); \
+ (void) (&__a == __d); \
+ __builtin_mul_overflow(__a, __b, __d); \
+})
+
+#else
+
+/* Checking for unsigned overflow is relatively easy without causing UB. */
+#define __unsigned_add_overflow(a, b, d) ({ \
+ typeof(a) __a = (a); \
+ typeof(b) __b = (b); \
+ typeof(d) __d = (d); \
+ (void) (&__a == &__b); \
+ (void) (&__a == __d); \
+ *__d = __a + __b; \
+ *__d < __a; \
+})
+#define __unsigned_sub_overflow(a, b, d) ({ \
+ typeof(a) __a = (a); \
+ typeof(b) __b = (b); \
+ typeof(d) __d = (d); \
+ (void) (&__a == &__b); \
+ (void) (&__a == __d); \
+ *__d = __a - __b; \
+ __a < __b; \
+})
+/*
+ * If one of a or b is a compile-time constant, this avoids a division.
+ */
+#define __unsigned_mul_overflow(a, b, d) ({ \
+ typeof(a) __a = (a); \
+ typeof(b) __b = (b); \
+ typeof(d) __d = (d); \
+ (void) (&__a == &__b); \
+ (void) (&__a == __d); \
+ *__d = __a * __b; \
+ __builtin_constant_p(__b) ? \
+ __b > 0 && __a > type_max(typeof(__a)) / __b : \
+ __a > 0 && __b > type_max(typeof(__b)) / __a; \
+})
+
+/*
+ * For signed types, detecting overflow is much harder, especially if
+ * we want to avoid UB. But the interface of these macros is such that
+ * we must provide a result in *d, and in fact we must produce the
+ * result promised by gcc's builtins, which is simply the possibly
+ * wrapped-around value. Fortunately, we can just formally do the
+ * operations in the widest relevant unsigned type (u64) and then
+ * truncate the result - gcc is smart enough to generate the same code
+ * with and without the (u64) casts.
+ */
+
+/*
+ * Adding two signed integers can overflow only if they have the same
+ * sign, and overflow has happened iff the result has the opposite
+ * sign.
+ */
+#define __signed_add_overflow(a, b, d) ({ \
+ typeof(a) __a = (a); \
+ typeof(b) __b = (b); \
+ typeof(d) __d = (d); \
+ (void) (&__a == &__b); \
+ (void) (&__a == __d); \
+ *__d = (u64)__a + (u64)__b; \
+ (((~(__a ^ __b)) & (*__d ^ __a)) \
+ & type_min(typeof(__a))) != 0; \
+})
+
+/*
+ * Subtraction is similar, except that overflow can now happen only
+ * when the signs are opposite. In this case, overflow has happened if
+ * the result has the opposite sign of a.
+ */
+#define __signed_sub_overflow(a, b, d) ({ \
+ typeof(a) __a = (a); \
+ typeof(b) __b = (b); \
+ typeof(d) __d = (d); \
+ (void) (&__a == &__b); \
+ (void) (&__a == __d); \
+ *__d = (u64)__a - (u64)__b; \
+ ((((__a ^ __b)) & (*__d ^ __a)) \
+ & type_min(typeof(__a))) != 0; \
+})
+
+/*
+ * Signed multiplication is rather hard. gcc always follows C99, so
+ * division is truncated towards 0. This means that we can write the
+ * overflow check like this:
+ *
+ * (a > 0 && (b > MAX/a || b < MIN/a)) ||
+ * (a < -1 && (b > MIN/a || b < MAX/a) ||
+ * (a == -1 && b == MIN)
+ *
+ * The redundant casts of -1 are to silence an annoying -Wtype-limits
+ * (included in -Wextra) warning: When the type is u8 or u16, the
+ * __b_c_e in check_mul_overflow obviously selects
+ * __unsigned_mul_overflow, but unfortunately gcc still parses this
+ * code and warns about the limited range of __b.
+ */
+
+#define __signed_mul_overflow(a, b, d) ({ \
+ typeof(a) __a = (a); \
+ typeof(b) __b = (b); \
+ typeof(d) __d = (d); \
+ typeof(a) __tmax = type_max(typeof(a)); \
+ typeof(a) __tmin = type_min(typeof(a)); \
+ (void) (&__a == &__b); \
+ (void) (&__a == __d); \
+ *__d = (u64)__a * (u64)__b; \
+ (__b > 0 && (__a > __tmax/__b || __a < __tmin/__b)) || \
+ (__b < (typeof(__b))-1 && (__a > __tmin/__b || __a < __tmax/__b)) || \
+ (__b == (typeof(__b))-1 && __a == __tmin); \
+})
+
+#define check_add_overflow(a, b, d) \
+ __builtin_choose_expr(_kc_is_signed_type(typeof(a)), \
+ __signed_add_overflow(a, b, d), \
+ __unsigned_add_overflow(a, b, d))
+
+#define check_sub_overflow(a, b, d) \
+ __builtin_choose_expr(_kc_is_signed_type(typeof(a)), \
+ __signed_sub_overflow(a, b, d), \
+ __unsigned_sub_overflow(a, b, d))
+
+#define check_mul_overflow(a, b, d) \
+ __builtin_choose_expr(_kc_is_signed_type(typeof(a)), \
+ __signed_mul_overflow(a, b, d), \
+ __unsigned_mul_overflow(a, b, d))
+
+#endif /* COMPILER_HAS_GENERIC_BUILTIN_OVERFLOW */
+
+/** check_shl_overflow() - Calculate a left-shifted value and check overflow
+ *
+ * @a: Value to be shifted
+ * @s: How many bits left to shift
+ * @d: Pointer to where to store the result
+ *
+ * Computes *@d = (@a << @s)
+ *
+ * Returns true if '*d' cannot hold the result or when 'a << s' doesn't
+ * make sense. Example conditions:
+ * - 'a << s' causes bits to be lost when stored in *d.
+ * - 's' is garbage (e.g. negative) or so large that the result of
+ * 'a << s' is guaranteed to be 0.
+ * - 'a' is negative.
+ * - 'a << s' sets the sign bit, if any, in '*d'.
+ *
+ * '*d' will hold the results of the attempted shift, but is not
+ * considered "safe for use" if false is returned.
+ */
+#define check_shl_overflow(a, s, d) ({ \
+ typeof(a) _a = a; \
+ typeof(s) _s = s; \
+ typeof(d) _d = d; \
+ u64 _a_full = _a; \
+ unsigned int _to_shift = \
+ _s >= 0 && _s < 8 * sizeof(*d) ? _s : 0; \
+ *_d = (_a_full << _to_shift); \
+ (_to_shift != _s || *_d < 0 || _a < 0 || \
+ (*_d >> _to_shift) != _a); \
+})
+
+/**
+ * array_size() - Calculate size of 2-dimensional array.
+ *
+ * @a: dimension one
+ * @b: dimension two
+ *
+ * Calculates size of 2-dimensional array: @a * @b.
+ *
+ * Returns: number of bytes needed to represent the array or SIZE_MAX on
+ * overflow.
+ */
+static inline __must_check size_t array_size(size_t a, size_t b)
+{
+ size_t bytes;
+
+ if (check_mul_overflow(a, b, &bytes))
+ return SIZE_MAX;
+
+ return bytes;
+}
+
+/**
+ * array3_size() - Calculate size of 3-dimensional array.
+ *
+ * @a: dimension one
+ * @b: dimension two
+ * @c: dimension three
+ *
+ * Calculates size of 3-dimensional array: @a * @b * @c.
+ *
+ * Returns: number of bytes needed to represent the array or SIZE_MAX on
+ * overflow.
+ */
+static inline __must_check size_t array3_size(size_t a, size_t b, size_t c)
+{
+ size_t bytes;
+
+ if (check_mul_overflow(a, b, &bytes))
+ return SIZE_MAX;
+ if (check_mul_overflow(bytes, c, &bytes))
+ return SIZE_MAX;
+
+ return bytes;
+}
+
+static inline __must_check size_t __ab_c_size(size_t n, size_t size, size_t c)
+{
+ size_t bytes;
+
+ if (check_mul_overflow(n, size, &bytes))
+ return SIZE_MAX;
+ if (check_add_overflow(bytes, c, &bytes))
+ return SIZE_MAX;
+
+ return bytes;
+}
+
+/**
+ * struct_size() - Calculate size of structure with trailing array.
+ * @p: Pointer to the structure.
+ * @member: Name of the array member.
+ * @n: Number of elements in the array.
+ *
+ * Calculates size of memory needed for structure @p followed by an
+ * array of @n @member elements.
+ *
+ * Return: number of bytes needed or SIZE_MAX on overflow.
+ */
+#define struct_size(p, member, n) \
+ __ab_c_size(n, \
+ sizeof(*(p)->member) + __must_be_array((p)->member),\
+ sizeof(*(p)))
+
+#endif /* __LINUX_OVERFLOW_H */
diff --git a/src/mac.c b/src/mac.c
new file mode 100644
index 0000000..a98a318
--- /dev/null
+++ b/src/mac.c
@@ -0,0 +1,1816 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright(c) 1999 - 2020 Intel Corporation. */
+
+#include "e1000.h"
+
+/**
+ * e1000e_get_bus_info_pcie - Get PCIe bus information
+ * @hw: pointer to the HW structure
+ *
+ * Determines and stores the system bus information for a particular
+ * network interface. The following bus information is determined and stored:
+ * bus speed, bus width, type (PCIe), and PCIe function.
+ **/
+s32 e1000e_get_bus_info_pcie(struct e1000_hw *hw)
+{
+ struct e1000_mac_info *mac = &hw->mac;
+ struct e1000_bus_info *bus = &hw->bus;
+ struct e1000_adapter *adapter = hw->adapter;
+ u16 pcie_link_status, cap_offset;
+
+ cap_offset = pci_find_capability(adapter->pdev, PCI_CAP_ID_EXP);
+ if (!cap_offset) {
+ bus->width = e1000_bus_width_unknown;
+ } else {
+ pci_read_config_word(adapter->pdev,
+ cap_offset + PCIE_LINK_STATUS,
+ &pcie_link_status);
+ bus->width = (enum e1000_bus_width)((pcie_link_status &
+ PCIE_LINK_WIDTH_MASK) >>
+ PCIE_LINK_WIDTH_SHIFT);
+ }
+
+ mac->ops.set_lan_id(hw);
+
+ return 0;
+}
+
+/**
+ * e1000_set_lan_id_multi_port_pcie - Set LAN id for PCIe multiple port devices
+ *
+ * @hw: pointer to the HW structure
+ *
+ * Determines the LAN function id by reading memory-mapped registers
+ * and swaps the port value if requested.
+ **/
+void e1000_set_lan_id_multi_port_pcie(struct e1000_hw *hw)
+{
+ struct e1000_bus_info *bus = &hw->bus;
+ u32 reg;
+
+ /* The status register reports the correct function number
+ * for the device regardless of function swap state.
+ */
+ reg = er32(STATUS);
+ bus->func = (reg & E1000_STATUS_FUNC_MASK) >> E1000_STATUS_FUNC_SHIFT;
+}
+
+/**
+ * e1000_set_lan_id_single_port - Set LAN id for a single port device
+ * @hw: pointer to the HW structure
+ *
+ * Sets the LAN function id to zero for a single port device.
+ **/
+void e1000_set_lan_id_single_port(struct e1000_hw *hw)
+{
+ struct e1000_bus_info *bus = &hw->bus;
+
+ bus->func = 0;
+}
+
+/**
+ * e1000_clear_vfta_generic - Clear VLAN filter table
+ * @hw: pointer to the HW structure
+ *
+ * Clears the register array which contains the VLAN filter table by
+ * setting all the values to 0.
+ **/
+void e1000_clear_vfta_generic(struct e1000_hw *hw)
+{
+ u32 offset;
+
+ for (offset = 0; offset < E1000_VLAN_FILTER_TBL_SIZE; offset++) {
+ E1000_WRITE_REG_ARRAY(hw, E1000_VFTA, offset, 0);
+ e1e_flush();
+ }
+}
+
+/**
+ * e1000_write_vfta_generic - Write value to VLAN filter table
+ * @hw: pointer to the HW structure
+ * @offset: register offset in VLAN filter table
+ * @value: register value written to VLAN filter table
+ *
+ * Writes value at the given offset in the register array which stores
+ * the VLAN filter table.
+ **/
+void e1000_write_vfta_generic(struct e1000_hw *hw, u32 offset, u32 value)
+{
+ E1000_WRITE_REG_ARRAY(hw, E1000_VFTA, offset, value);
+ e1e_flush();
+}
+
+/**
+ * e1000e_init_rx_addrs - Initialize receive address's
+ * @hw: pointer to the HW structure
+ * @rar_count: receive address registers
+ *
+ * Setup the receive address registers by setting the base receive address
+ * register to the devices MAC address and clearing all the other receive
+ * address registers to 0.
+ **/
+void e1000e_init_rx_addrs(struct e1000_hw *hw, u16 rar_count)
+{
+ u32 i;
+ u8 mac_addr[ETH_ALEN] = { 0 };
+
+ /* Setup the receive address */
+ e_dbg("Programming MAC Address into RAR[0]\n");
+
+ hw->mac.ops.rar_set(hw, hw->mac.addr, 0);
+
+ /* Zero out the other (rar_entry_count - 1) receive addresses */
+ e_dbg("Clearing RAR[1-%u]\n", rar_count - 1);
+ for (i = 1; i < rar_count; i++)
+ hw->mac.ops.rar_set(hw, mac_addr, i);
+}
+
+/**
+ * e1000_check_alt_mac_addr_generic - Check for alternate MAC addr
+ * @hw: pointer to the HW structure
+ *
+ * Checks the nvm for an alternate MAC address. An alternate MAC address
+ * can be setup by pre-boot software and must be treated like a permanent
+ * address and must override the actual permanent MAC address. If an
+ * alternate MAC address is found it is programmed into RAR0, replacing
+ * the permanent address that was installed into RAR0 by the Si on reset.
+ * This function will return SUCCESS unless it encounters an error while
+ * reading the EEPROM.
+ **/
+s32 e1000_check_alt_mac_addr_generic(struct e1000_hw *hw)
+{
+ u32 i;
+ s32 ret_val;
+ u16 offset, nvm_alt_mac_addr_offset, nvm_data;
+ u8 alt_mac_addr[ETH_ALEN];
+
+ ret_val = e1000_read_nvm(hw, NVM_COMPAT, 1, &nvm_data);
+ if (ret_val)
+ return ret_val;
+
+ /* not supported on 82573 */
+ if (hw->mac.type == e1000_82573)
+ return 0;
+
+ ret_val = e1000_read_nvm(hw, NVM_ALT_MAC_ADDR_PTR, 1,
+ &nvm_alt_mac_addr_offset);
+ if (ret_val) {
+ e_dbg("NVM Read Error\n");
+ return ret_val;
+ }
+
+ if ((nvm_alt_mac_addr_offset == 0xFFFF) ||
+ (nvm_alt_mac_addr_offset == 0x0000))
+ /* There is no Alternate MAC Address */
+ return 0;
+
+ if (hw->bus.func == E1000_FUNC_1)
+ nvm_alt_mac_addr_offset += E1000_ALT_MAC_ADDRESS_OFFSET_LAN1;
+ for (i = 0; i < ETH_ALEN; i += 2) {
+ offset = nvm_alt_mac_addr_offset + (i >> 1);
+ ret_val = e1000_read_nvm(hw, offset, 1, &nvm_data);
+ if (ret_val) {
+ e_dbg("NVM Read Error\n");
+ return ret_val;
+ }
+
+ alt_mac_addr[i] = (u8)(nvm_data & 0xFF);
+ alt_mac_addr[i + 1] = (u8)(nvm_data >> 8);
+ }
+
+ /* if multicast bit is set, the alternate address will not be used */
+ if (is_multicast_ether_addr(alt_mac_addr)) {
+ e_dbg("Ignoring Alternate Mac Address with MC bit set\n");
+ return 0;
+ }
+
+ /* We have a valid alternate MAC address, and we want to treat it the
+ * same as the normal permanent MAC address stored by the HW into the
+ * RAR. Do this by mapping this address into RAR0.
+ */
+ hw->mac.ops.rar_set(hw, alt_mac_addr, 0);
+
+ return 0;
+}
+
+u32 e1000e_rar_get_count_generic(struct e1000_hw *hw)
+{
+ return hw->mac.rar_entry_count;
+}
+
+/**
+ * e1000e_rar_set_generic - Set receive address register
+ * @hw: pointer to the HW structure
+ * @addr: pointer to the receive address
+ * @index: receive address array register
+ *
+ * Sets the receive address array register at index to the address passed
+ * in by addr.
+ **/
+int e1000e_rar_set_generic(struct e1000_hw *hw, u8 *addr, u32 index)
+{
+ u32 rar_low, rar_high;
+
+ /* HW expects these in little endian so we reverse the byte order
+ * from network order (big endian) to little endian
+ */
+ rar_low = ((u32)addr[0] | ((u32)addr[1] << 8) |
+ ((u32)addr[2] << 16) | ((u32)addr[3] << 24));
+
+ rar_high = ((u32)addr[4] | ((u32)addr[5] << 8));
+
+ /* If MAC address zero, no need to set the AV bit */
+ if (rar_low || rar_high)
+ rar_high |= E1000_RAH_AV;
+
+ /* Some bridges will combine consecutive 32-bit writes into
+ * a single burst write, which will malfunction on some parts.
+ * The flushes avoid this.
+ */
+ ew32(RAL(index), rar_low);
+ e1e_flush();
+ ew32(RAH(index), rar_high);
+ e1e_flush();
+
+ return 0;
+}
+
+/**
+ * e1000_hash_mc_addr - Generate a multicast hash value
+ * @hw: pointer to the HW structure
+ * @mc_addr: pointer to a multicast address
+ *
+ * Generates a multicast address hash value which is used to determine
+ * the multicast filter table array address and new table value.
+ **/
+static u32 e1000_hash_mc_addr(struct e1000_hw *hw, u8 *mc_addr)
+{
+ u32 hash_value, hash_mask;
+ u8 bit_shift = 0;
+
+ /* Register count multiplied by bits per register */
+ hash_mask = (hw->mac.mta_reg_count * 32) - 1;
+
+ /* For a mc_filter_type of 0, bit_shift is the number of left-shifts
+ * where 0xFF would still fall within the hash mask.
+ */
+ while (hash_mask >> bit_shift != 0xFF)
+ bit_shift++;
+
+ /* The portion of the address that is used for the hash table
+ * is determined by the mc_filter_type setting.
+ * The algorithm is such that there is a total of 8 bits of shifting.
+ * The bit_shift for a mc_filter_type of 0 represents the number of
+ * left-shifts where the MSB of mc_addr[5] would still fall within
+ * the hash_mask. Case 0 does this exactly. Since there are a total
+ * of 8 bits of shifting, then mc_addr[4] will shift right the
+ * remaining number of bits. Thus 8 - bit_shift. The rest of the
+ * cases are a variation of this algorithm...essentially raising the
+ * number of bits to shift mc_addr[5] left, while still keeping the
+ * 8-bit shifting total.
+ *
+ * For example, given the following Destination MAC Address and an
+ * mta register count of 128 (thus a 4096-bit vector and 0xFFF mask),
+ * we can see that the bit_shift for case 0 is 4. These are the hash
+ * values resulting from each mc_filter_type...
+ * [0] [1] [2] [3] [4] [5]
+ * 01 AA 00 12 34 56
+ * LSB MSB
+ *
+ * case 0: hash_value = ((0x34 >> 4) | (0x56 << 4)) & 0xFFF = 0x563
+ * case 1: hash_value = ((0x34 >> 3) | (0x56 << 5)) & 0xFFF = 0xAC6
+ * case 2: hash_value = ((0x34 >> 2) | (0x56 << 6)) & 0xFFF = 0x163
+ * case 3: hash_value = ((0x34 >> 0) | (0x56 << 8)) & 0xFFF = 0x634
+ */
+ switch (hw->mac.mc_filter_type) {
+ default:
+ case 0:
+ break;
+ case 1:
+ bit_shift += 1;
+ break;
+ case 2:
+ bit_shift += 2;
+ break;
+ case 3:
+ bit_shift += 4;
+ break;
+ }
+
+ hash_value = hash_mask & (((mc_addr[4] >> (8 - bit_shift)) |
+ (((u16)mc_addr[5]) << bit_shift)));
+
+ return hash_value;
+}
+
+/**
+ * e1000e_update_mc_addr_list_generic - Update Multicast addresses
+ * @hw: pointer to the HW structure
+ * @mc_addr_list: array of multicast addresses to program
+ * @mc_addr_count: number of multicast addresses to program
+ *
+ * Updates entire Multicast Table Array.
+ * The caller must have a packed mc_addr_list of multicast addresses.
+ **/
+void e1000e_update_mc_addr_list_generic(struct e1000_hw *hw,
+ u8 *mc_addr_list, u32 mc_addr_count)
+{
+ u32 hash_value, hash_bit, hash_reg;
+ int i;
+
+ /* clear mta_shadow */
+ memset(&hw->mac.mta_shadow, 0, sizeof(hw->mac.mta_shadow));
+
+ /* update mta_shadow from mc_addr_list */
+ for (i = 0; (u32)i < mc_addr_count; i++) {
+ hash_value = e1000_hash_mc_addr(hw, mc_addr_list);
+
+ hash_reg = (hash_value >> 5) & (hw->mac.mta_reg_count - 1);
+ hash_bit = hash_value & 0x1F;
+
+ hw->mac.mta_shadow[hash_reg] |= (1 << hash_bit);
+ mc_addr_list += (ETH_ALEN);
+ }
+
+ /* replace the entire MTA table */
+ for (i = hw->mac.mta_reg_count - 1; i >= 0; i--)
+ E1000_WRITE_REG_ARRAY(hw, E1000_MTA, i, hw->mac.mta_shadow[i]);
+ e1e_flush();
+}
+
+/**
+ * e1000e_clear_hw_cntrs_base - Clear base hardware counters
+ * @hw: pointer to the HW structure
+ *
+ * Clears the base hardware counters by reading the counter registers.
+ **/
+void e1000e_clear_hw_cntrs_base(struct e1000_hw *hw)
+{
+ er32(CRCERRS);
+ er32(SYMERRS);
+ er32(MPC);
+ er32(SCC);
+ er32(ECOL);
+ er32(MCC);
+ er32(LATECOL);
+ er32(COLC);
+ er32(DC);
+ er32(SEC);
+ er32(RLEC);
+ er32(XONRXC);
+ er32(XONTXC);
+ er32(XOFFRXC);
+ er32(XOFFTXC);
+ er32(FCRUC);
+ er32(GPRC);
+ er32(BPRC);
+ er32(MPRC);
+ er32(GPTC);
+ er32(GORCL);
+ er32(GORCH);
+ er32(GOTCL);
+ er32(GOTCH);
+ er32(RNBC);
+ er32(RUC);
+ er32(RFC);
+ er32(ROC);
+ er32(RJC);
+ er32(TORL);
+ er32(TORH);
+ er32(TOTL);
+ er32(TOTH);
+ er32(TPR);
+ er32(TPT);
+ er32(MPTC);
+ er32(BPTC);
+}
+
+/**
+ * e1000e_check_for_copper_link - Check for link (Copper)
+ * @hw: pointer to the HW structure
+ *
+ * Checks to see of the link status of the hardware has changed. If a
+ * change in link status has been detected, then we read the PHY registers
+ * to get the current speed/duplex if link exists.
+ **/
+s32 e1000e_check_for_copper_link(struct e1000_hw *hw)
+{
+ struct e1000_mac_info *mac = &hw->mac;
+ s32 ret_val;
+ bool link;
+
+ /* We only want to go out to the PHY registers to see if Auto-Neg
+ * has completed and/or if our link status has changed. The
+ * get_link_status flag is set upon receiving a Link Status
+ * Change or Rx Sequence Error interrupt.
+ */
+ if (!mac->get_link_status)
+ return 0;
+
+ /* First we want to see if the MII Status Register reports
+ * link. If so, then we want to get the current speed/duplex
+ * of the PHY.
+ */
+ ret_val = e1000e_phy_has_link_generic(hw, 1, 0, &link);
+ if (ret_val)
+ return ret_val;
+
+ if (!link)
+ return 0; /* No link detected */
+
+ mac->get_link_status = false;
+
+ /* Check if there was DownShift, must be checked
+ * immediately after link-up
+ */
+ e1000e_check_downshift(hw);
+
+ /* If we are forcing speed/duplex, then we simply return since
+ * we have already determined whether we have link or not.
+ */
+ if (!mac->autoneg)
+ return -E1000_ERR_CONFIG;
+
+ /* Auto-Neg is enabled. Auto Speed Detection takes care
+ * of MAC speed/duplex configuration. So we only need to
+ * configure Collision Distance in the MAC.
+ */
+ mac->ops.config_collision_dist(hw);
+
+ /* Configure Flow Control now that Auto-Neg has completed.
+ * First, we need to restore the desired flow control
+ * settings because we may have had to re-autoneg with a
+ * different link partner.
+ */
+ ret_val = e1000e_config_fc_after_link_up(hw);
+ if (ret_val)
+ e_dbg("Error configuring flow control\n");
+
+ return ret_val;
+}
+
+/**
+ * e1000e_check_for_fiber_link - Check for link (Fiber)
+ * @hw: pointer to the HW structure
+ *
+ * Checks for link up on the hardware. If link is not up and we have
+ * a signal, then we need to force link up.
+ **/
+s32 e1000e_check_for_fiber_link(struct e1000_hw *hw)
+{
+ struct e1000_mac_info *mac = &hw->mac;
+ u32 rxcw;
+ u32 ctrl;
+ u32 status;
+ s32 ret_val;
+
+ ctrl = er32(CTRL);
+ status = er32(STATUS);
+ rxcw = er32(RXCW);
+
+ /* If we don't have link (auto-negotiation failed or link partner
+ * cannot auto-negotiate), the cable is plugged in (we have signal),
+ * and our link partner is not trying to auto-negotiate with us (we
+ * are receiving idles or data), we need to force link up. We also
+ * need to give auto-negotiation time to complete, in case the cable
+ * was just plugged in. The autoneg_failed flag does this.
+ */
+ /* (ctrl & E1000_CTRL_SWDPIN1) == 1 == have signal */
+ if ((ctrl & E1000_CTRL_SWDPIN1) && !(status & E1000_STATUS_LU) &&
+ !(rxcw & E1000_RXCW_C)) {
+ if (!mac->autoneg_failed) {
+ mac->autoneg_failed = true;
+ return 0;
+ }
+ e_dbg("NOT Rx'ing /C/, disable AutoNeg and force link.\n");
+
+ /* Disable auto-negotiation in the TXCW register */
+ ew32(TXCW, (mac->txcw & ~E1000_TXCW_ANE));
+
+ /* Force link-up and also force full-duplex. */
+ ctrl = er32(CTRL);
+ ctrl |= (E1000_CTRL_SLU | E1000_CTRL_FD);
+ ew32(CTRL, ctrl);
+
+ /* Configure Flow Control after forcing link up. */
+ ret_val = e1000e_config_fc_after_link_up(hw);
+ if (ret_val) {
+ e_dbg("Error configuring flow control\n");
+ return ret_val;
+ }
+ } else if ((ctrl & E1000_CTRL_SLU) && (rxcw & E1000_RXCW_C)) {
+ /* If we are forcing link and we are receiving /C/ ordered
+ * sets, re-enable auto-negotiation in the TXCW register
+ * and disable forced link in the Device Control register
+ * in an attempt to auto-negotiate with our link partner.
+ */
+ e_dbg("Rx'ing /C/, enable AutoNeg and stop forcing link.\n");
+ ew32(TXCW, mac->txcw);
+ ew32(CTRL, (ctrl & ~E1000_CTRL_SLU));
+
+ mac->serdes_has_link = true;
+ }
+
+ return 0;
+}
+
+/**
+ * e1000e_check_for_serdes_link - Check for link (Serdes)
+ * @hw: pointer to the HW structure
+ *
+ * Checks for link up on the hardware. If link is not up and we have
+ * a signal, then we need to force link up.
+ **/
+s32 e1000e_check_for_serdes_link(struct e1000_hw *hw)
+{
+ struct e1000_mac_info *mac = &hw->mac;
+ u32 rxcw;
+ u32 ctrl;
+ u32 status;
+ s32 ret_val;
+
+ ctrl = er32(CTRL);
+ status = er32(STATUS);
+ rxcw = er32(RXCW);
+
+ /* If we don't have link (auto-negotiation failed or link partner
+ * cannot auto-negotiate), and our link partner is not trying to
+ * auto-negotiate with us (we are receiving idles or data),
+ * we need to force link up. We also need to give auto-negotiation
+ * time to complete.
+ */
+ /* (ctrl & E1000_CTRL_SWDPIN1) == 1 == have signal */
+ if (!(status & E1000_STATUS_LU) && !(rxcw & E1000_RXCW_C)) {
+ if (!mac->autoneg_failed) {
+ mac->autoneg_failed = true;
+ return 0;
+ }
+ e_dbg("NOT Rx'ing /C/, disable AutoNeg and force link.\n");
+
+ /* Disable auto-negotiation in the TXCW register */
+ ew32(TXCW, (mac->txcw & ~E1000_TXCW_ANE));
+
+ /* Force link-up and also force full-duplex. */
+ ctrl = er32(CTRL);
+ ctrl |= (E1000_CTRL_SLU | E1000_CTRL_FD);
+ ew32(CTRL, ctrl);
+
+ /* Configure Flow Control after forcing link up. */
+ ret_val = e1000e_config_fc_after_link_up(hw);
+ if (ret_val) {
+ e_dbg("Error configuring flow control\n");
+ return ret_val;
+ }
+ } else if ((ctrl & E1000_CTRL_SLU) && (rxcw & E1000_RXCW_C)) {
+ /* If we are forcing link and we are receiving /C/ ordered
+ * sets, re-enable auto-negotiation in the TXCW register
+ * and disable forced link in the Device Control register
+ * in an attempt to auto-negotiate with our link partner.
+ */
+ e_dbg("Rx'ing /C/, enable AutoNeg and stop forcing link.\n");
+ ew32(TXCW, mac->txcw);
+ ew32(CTRL, (ctrl & ~E1000_CTRL_SLU));
+
+ mac->serdes_has_link = true;
+ } else if (!(E1000_TXCW_ANE & er32(TXCW))) {
+ /* If we force link for non-auto-negotiation switch, check
+ * link status based on MAC synchronization for internal
+ * serdes media type.
+ */
+ /* SYNCH bit and IV bit are sticky. */
+ usleep_range(10, 20);
+ rxcw = er32(RXCW);
+ if (rxcw & E1000_RXCW_SYNCH) {
+ if (!(rxcw & E1000_RXCW_IV)) {
+ mac->serdes_has_link = true;
+ e_dbg("SERDES: Link up - forced.\n");
+ }
+ } else {
+ mac->serdes_has_link = false;
+ e_dbg("SERDES: Link down - force failed.\n");
+ }
+ }
+
+ if (E1000_TXCW_ANE & er32(TXCW)) {
+ status = er32(STATUS);
+ if (status & E1000_STATUS_LU) {
+ /* SYNCH bit and IV bit are sticky, so reread rxcw. */
+ usleep_range(10, 20);
+ rxcw = er32(RXCW);
+ if (rxcw & E1000_RXCW_SYNCH) {
+ if (!(rxcw & E1000_RXCW_IV)) {
+ mac->serdes_has_link = true;
+ e_dbg("SERDES: Link up - autoneg completed successfully.\n");
+ } else {
+ mac->serdes_has_link = false;
+ e_dbg("SERDES: Link down - invalid codewords detected in autoneg.\n");
+ }
+ } else {
+ mac->serdes_has_link = false;
+ e_dbg("SERDES: Link down - no sync.\n");
+ }
+ } else {
+ mac->serdes_has_link = false;
+ e_dbg("SERDES: Link down - autoneg failed\n");
+ }
+ }
+
+ return 0;
+}
+
+/**
+ * e1000_set_default_fc_generic - Set flow control default values
+ * @hw: pointer to the HW structure
+ *
+ * Read the EEPROM for the default values for flow control and store the
+ * values.
+ **/
+static s32 e1000_set_default_fc_generic(struct e1000_hw *hw)
+{
+ s32 ret_val;
+ u16 nvm_data;
+
+ /* Read and store word 0x0F of the EEPROM. This word contains bits
+ * that determine the hardware's default PAUSE (flow control) mode,
+ * a bit that determines whether the HW defaults to enabling or
+ * disabling auto-negotiation, and the direction of the
+ * SW defined pins. If there is no SW over-ride of the flow
+ * control setting, then the variable hw->fc will
+ * be initialized based on a value in the EEPROM.
+ */
+ ret_val = e1000_read_nvm(hw, NVM_INIT_CONTROL2_REG, 1, &nvm_data);
+
+ if (ret_val) {
+ e_dbg("NVM Read Error\n");
+ return ret_val;
+ }
+
+ if (!(nvm_data & NVM_WORD0F_PAUSE_MASK))
+ hw->fc.requested_mode = e1000_fc_none;
+ else if ((nvm_data & NVM_WORD0F_PAUSE_MASK) == NVM_WORD0F_ASM_DIR)
+ hw->fc.requested_mode = e1000_fc_tx_pause;
+ else
+ hw->fc.requested_mode = e1000_fc_full;
+
+ return 0;
+}
+
+/**
+ * e1000e_setup_link_generic - Setup flow control and link settings
+ * @hw: pointer to the HW structure
+ *
+ * Determines which flow control settings to use, then configures flow
+ * control. Calls the appropriate media-specific link configuration
+ * function. Assuming the adapter has a valid link partner, a valid link
+ * should be established. Assumes the hardware has previously been reset
+ * and the transmitter and receiver are not enabled.
+ **/
+s32 e1000e_setup_link_generic(struct e1000_hw *hw)
+{
+ s32 ret_val;
+
+ /* In the case of the phy reset being blocked, we already have a link.
+ * We do not need to set it up again.
+ */
+ if (hw->phy.ops.check_reset_block && hw->phy.ops.check_reset_block(hw))
+ return 0;
+
+ /* If requested flow control is set to default, set flow control
+ * based on the EEPROM flow control settings.
+ */
+ if (hw->fc.requested_mode == e1000_fc_default) {
+ ret_val = e1000_set_default_fc_generic(hw);
+ if (ret_val)
+ return ret_val;
+ }
+
+ /* Save off the requested flow control mode for use later. Depending
+ * on the link partner's capabilities, we may or may not use this mode.
+ */
+ hw->fc.current_mode = hw->fc.requested_mode;
+
+ e_dbg("After fix-ups FlowControl is now = %x\n", hw->fc.current_mode);
+
+ /* Call the necessary media_type subroutine to configure the link. */
+ ret_val = hw->mac.ops.setup_physical_interface(hw);
+ if (ret_val)
+ return ret_val;
+
+ /* Initialize the flow control address, type, and PAUSE timer
+ * registers to their default values. This is done even if flow
+ * control is disabled, because it does not hurt anything to
+ * initialize these registers.
+ */
+ e_dbg("Initializing the Flow Control address, type and timer regs\n");
+ ew32(FCT, FLOW_CONTROL_TYPE);
+ ew32(FCAH, FLOW_CONTROL_ADDRESS_HIGH);
+ ew32(FCAL, FLOW_CONTROL_ADDRESS_LOW);
+
+ ew32(FCTTV, hw->fc.pause_time);
+
+ return e1000e_set_fc_watermarks(hw);
+}
+
+/**
+ * e1000_commit_fc_settings_generic - Configure flow control
+ * @hw: pointer to the HW structure
+ *
+ * Write the flow control settings to the Transmit Config Word Register (TXCW)
+ * base on the flow control settings in e1000_mac_info.
+ **/
+static s32 e1000_commit_fc_settings_generic(struct e1000_hw *hw)
+{
+ struct e1000_mac_info *mac = &hw->mac;
+ u32 txcw;
+
+ /* Check for a software override of the flow control settings, and
+ * setup the device accordingly. If auto-negotiation is enabled, then
+ * software will have to set the "PAUSE" bits to the correct value in
+ * the Transmit Config Word Register (TXCW) and re-start auto-
+ * negotiation. However, if auto-negotiation is disabled, then
+ * software will have to manually configure the two flow control enable
+ * bits in the CTRL register.
+ *
+ * The possible values of the "fc" parameter are:
+ * 0: Flow control is completely disabled
+ * 1: Rx flow control is enabled (we can receive pause frames,
+ * but not send pause frames).
+ * 2: Tx flow control is enabled (we can send pause frames but we
+ * do not support receiving pause frames).
+ * 3: Both Rx and Tx flow control (symmetric) are enabled.
+ */
+ switch (hw->fc.current_mode) {
+ case e1000_fc_none:
+ /* Flow control completely disabled by a software over-ride. */
+ txcw = (E1000_TXCW_ANE | E1000_TXCW_FD);
+ break;
+ case e1000_fc_rx_pause:
+ /* Rx Flow control is enabled and Tx Flow control is disabled
+ * by a software over-ride. Since there really isn't a way to
+ * advertise that we are capable of Rx Pause ONLY, we will
+ * advertise that we support both symmetric and asymmetric Rx
+ * PAUSE. Later, we will disable the adapter's ability to send
+ * PAUSE frames.
+ */
+ txcw = (E1000_TXCW_ANE | E1000_TXCW_FD | E1000_TXCW_PAUSE_MASK);
+ break;
+ case e1000_fc_tx_pause:
+ /* Tx Flow control is enabled, and Rx Flow control is disabled,
+ * by a software over-ride.
+ */
+ txcw = (E1000_TXCW_ANE | E1000_TXCW_FD | E1000_TXCW_ASM_DIR);
+ break;
+ case e1000_fc_full:
+ /* Flow control (both Rx and Tx) is enabled by a software
+ * over-ride.
+ */
+ txcw = (E1000_TXCW_ANE | E1000_TXCW_FD | E1000_TXCW_PAUSE_MASK);
+ break;
+ default:
+ e_dbg("Flow control param set incorrectly\n");
+ return -E1000_ERR_CONFIG;
+ break;
+ }
+
+ ew32(TXCW, txcw);
+ mac->txcw = txcw;
+
+ return 0;
+}
+
+/**
+ * e1000_poll_fiber_serdes_link_generic - Poll for link up
+ * @hw: pointer to the HW structure
+ *
+ * Polls for link up by reading the status register, if link fails to come
+ * up with auto-negotiation, then the link is forced if a signal is detected.
+ **/
+static s32 e1000_poll_fiber_serdes_link_generic(struct e1000_hw *hw)
+{
+ struct e1000_mac_info *mac = &hw->mac;
+ u32 i, status;
+ s32 ret_val;
+
+ /* If we have a signal (the cable is plugged in, or assumed true for
+ * serdes media) then poll for a "Link-Up" indication in the Device
+ * Status Register. Time-out if a link isn't seen in 500 milliseconds
+ * seconds (Auto-negotiation should complete in less than 500
+ * milliseconds even if the other end is doing it in SW).
+ */
+ for (i = 0; i < FIBER_LINK_UP_LIMIT; i++) {
+ usleep_range(10000, 20000);
+ status = er32(STATUS);
+ if (status & E1000_STATUS_LU)
+ break;
+ }
+ if (i == FIBER_LINK_UP_LIMIT) {
+ e_dbg("Never got a valid link from auto-neg!!!\n");
+ mac->autoneg_failed = true;
+ /* AutoNeg failed to achieve a link, so we'll call
+ * mac->check_for_link. This routine will force the
+ * link up if we detect a signal. This will allow us to
+ * communicate with non-autonegotiating link partners.
+ */
+ ret_val = mac->ops.check_for_link(hw);
+ if (ret_val) {
+ e_dbg("Error while checking for link\n");
+ return ret_val;
+ }
+ mac->autoneg_failed = false;
+ } else {
+ mac->autoneg_failed = false;
+ e_dbg("Valid Link Found\n");
+ }
+
+ return 0;
+}
+
+/**
+ * e1000e_setup_fiber_serdes_link - Setup link for fiber/serdes
+ * @hw: pointer to the HW structure
+ *
+ * Configures collision distance and flow control for fiber and serdes
+ * links. Upon successful setup, poll for link.
+ **/
+s32 e1000e_setup_fiber_serdes_link(struct e1000_hw *hw)
+{
+ u32 ctrl;
+ s32 ret_val;
+
+ ctrl = er32(CTRL);
+
+ /* Take the link out of reset */
+ ctrl &= ~E1000_CTRL_LRST;
+
+ hw->mac.ops.config_collision_dist(hw);
+
+ ret_val = e1000_commit_fc_settings_generic(hw);
+ if (ret_val)
+ return ret_val;
+
+ /* Since auto-negotiation is enabled, take the link out of reset (the
+ * link will be in reset, because we previously reset the chip). This
+ * will restart auto-negotiation. If auto-negotiation is successful
+ * then the link-up status bit will be set and the flow control enable
+ * bits (RFCE and TFCE) will be set according to their negotiated value.
+ */
+ e_dbg("Auto-negotiation enabled\n");
+
+ ew32(CTRL, ctrl);
+ e1e_flush();
+ usleep_range(1000, 2000);
+
+ /* For these adapters, the SW definable pin 1 is set when the optics
+ * detect a signal. If we have a signal, then poll for a "Link-Up"
+ * indication.
+ */
+ if (hw->phy.media_type == e1000_media_type_internal_serdes ||
+ (er32(CTRL) & E1000_CTRL_SWDPIN1)) {
+ ret_val = e1000_poll_fiber_serdes_link_generic(hw);
+ } else {
+ e_dbg("No signal detected\n");
+ }
+
+ return ret_val;
+}
+
+/**
+ * e1000e_config_collision_dist_generic - Configure collision distance
+ * @hw: pointer to the HW structure
+ *
+ * Configures the collision distance to the default value and is used
+ * during link setup.
+ **/
+void e1000e_config_collision_dist_generic(struct e1000_hw *hw)
+{
+ u32 tctl;
+
+ tctl = er32(TCTL);
+
+ tctl &= ~E1000_TCTL_COLD;
+ tctl |= E1000_COLLISION_DISTANCE << E1000_COLD_SHIFT;
+
+ ew32(TCTL, tctl);
+ e1e_flush();
+}
+
+/**
+ * e1000e_set_fc_watermarks - Set flow control high/low watermarks
+ * @hw: pointer to the HW structure
+ *
+ * Sets the flow control high/low threshold (watermark) registers. If
+ * flow control XON frame transmission is enabled, then set XON frame
+ * transmission as well.
+ **/
+s32 e1000e_set_fc_watermarks(struct e1000_hw *hw)
+{
+ u32 fcrtl = 0, fcrth = 0;
+
+ /* Set the flow control receive threshold registers. Normally,
+ * these registers will be set to a default threshold that may be
+ * adjusted later by the driver's runtime code. However, if the
+ * ability to transmit pause frames is not enabled, then these
+ * registers will be set to 0.
+ */
+ if (hw->fc.current_mode & e1000_fc_tx_pause) {
+ /* We need to set up the Receive Threshold high and low water
+ * marks as well as (optionally) enabling the transmission of
+ * XON frames.
+ */
+ fcrtl = hw->fc.low_water;
+ if (hw->fc.send_xon)
+ fcrtl |= E1000_FCRTL_XONE;
+
+ fcrth = hw->fc.high_water;
+ }
+ ew32(FCRTL, fcrtl);
+ ew32(FCRTH, fcrth);
+
+ return 0;
+}
+
+/**
+ * e1000e_force_mac_fc - Force the MAC's flow control settings
+ * @hw: pointer to the HW structure
+ *
+ * Force the MAC's flow control settings. Sets the TFCE and RFCE bits in the
+ * device control register to reflect the adapter settings. TFCE and RFCE
+ * need to be explicitly set by software when a copper PHY is used because
+ * autonegotiation is managed by the PHY rather than the MAC. Software must
+ * also configure these bits when link is forced on a fiber connection.
+ **/
+s32 e1000e_force_mac_fc(struct e1000_hw *hw)
+{
+ u32 ctrl;
+
+ ctrl = er32(CTRL);
+
+ /* Because we didn't get link via the internal auto-negotiation
+ * mechanism (we either forced link or we got link via PHY
+ * auto-neg), we have to manually enable/disable transmit an
+ * receive flow control.
+ *
+ * The "Case" statement below enables/disable flow control
+ * according to the "hw->fc.current_mode" parameter.
+ *
+ * The possible values of the "fc" parameter are:
+ * 0: Flow control is completely disabled
+ * 1: Rx flow control is enabled (we can receive pause
+ * frames but not send pause frames).
+ * 2: Tx flow control is enabled (we can send pause frames
+ * frames but we do not receive pause frames).
+ * 3: Both Rx and Tx flow control (symmetric) is enabled.
+ * other: No other values should be possible at this point.
+ */
+ e_dbg("hw->fc.current_mode = %u\n", hw->fc.current_mode);
+
+ switch (hw->fc.current_mode) {
+ case e1000_fc_none:
+ ctrl &= (~(E1000_CTRL_TFCE | E1000_CTRL_RFCE));
+ break;
+ case e1000_fc_rx_pause:
+ ctrl &= (~E1000_CTRL_TFCE);
+ ctrl |= E1000_CTRL_RFCE;
+ break;
+ case e1000_fc_tx_pause:
+ ctrl &= (~E1000_CTRL_RFCE);
+ ctrl |= E1000_CTRL_TFCE;
+ break;
+ case e1000_fc_full:
+ ctrl |= (E1000_CTRL_TFCE | E1000_CTRL_RFCE);
+ break;
+ default:
+ e_dbg("Flow control param set incorrectly\n");
+ return -E1000_ERR_CONFIG;
+ }
+
+ ew32(CTRL, ctrl);
+
+ return 0;
+}
+
+/**
+ * e1000e_config_fc_after_link_up - Configures flow control after link
+ * @hw: pointer to the HW structure
+ *
+ * Checks the status of auto-negotiation after link up to ensure that the
+ * speed and duplex were not forced. If the link needed to be forced, then
+ * flow control needs to be forced also. If auto-negotiation is enabled
+ * and did not fail, then we configure flow control based on our link
+ * partner.
+ **/
+s32 e1000e_config_fc_after_link_up(struct e1000_hw *hw)
+{
+ struct e1000_mac_info *mac = &hw->mac;
+ s32 ret_val = 0;
+ u32 pcs_status_reg, pcs_adv_reg, pcs_lp_ability_reg, pcs_ctrl_reg;
+ u16 mii_status_reg, mii_nway_adv_reg, mii_nway_lp_ability_reg;
+ u16 speed, duplex;
+
+ /* Check for the case where we have fiber media and auto-neg failed
+ * so we had to force link. In this case, we need to force the
+ * configuration of the MAC to match the "fc" parameter.
+ */
+ if (mac->autoneg_failed) {
+ if (hw->phy.media_type == e1000_media_type_fiber ||
+ hw->phy.media_type == e1000_media_type_internal_serdes)
+ ret_val = e1000e_force_mac_fc(hw);
+ } else {
+ if (hw->phy.media_type == e1000_media_type_copper)
+ ret_val = e1000e_force_mac_fc(hw);
+ }
+
+ if (ret_val) {
+ e_dbg("Error forcing flow control settings\n");
+ return ret_val;
+ }
+
+ /* Check for the case where we have copper media and auto-neg is
+ * enabled. In this case, we need to check and see if Auto-Neg
+ * has completed, and if so, how the PHY and link partner has
+ * flow control configured.
+ */
+ if ((hw->phy.media_type == e1000_media_type_copper) && mac->autoneg) {
+ /* Read the MII Status Register and check to see if AutoNeg
+ * has completed. We read this twice because this reg has
+ * some "sticky" (latched) bits.
+ */
+ ret_val = e1e_rphy(hw, MII_BMSR, &mii_status_reg);
+ if (ret_val)
+ return ret_val;
+ ret_val = e1e_rphy(hw, MII_BMSR, &mii_status_reg);
+ if (ret_val)
+ return ret_val;
+
+ if (!(mii_status_reg & BMSR_ANEGCOMPLETE)) {
+ e_dbg("Copper PHY and Auto Neg has not completed.\n");
+ return ret_val;
+ }
+
+ /* The AutoNeg process has completed, so we now need to
+ * read both the Auto Negotiation Advertisement
+ * Register (Address 4) and the Auto_Negotiation Base
+ * Page Ability Register (Address 5) to determine how
+ * flow control was negotiated.
+ */
+ ret_val = e1e_rphy(hw, MII_ADVERTISE, &mii_nway_adv_reg);
+ if (ret_val)
+ return ret_val;
+ ret_val = e1e_rphy(hw, MII_LPA, &mii_nway_lp_ability_reg);
+ if (ret_val)
+ return ret_val;
+
+ /* Two bits in the Auto Negotiation Advertisement Register
+ * (Address 4) and two bits in the Auto Negotiation Base
+ * Page Ability Register (Address 5) determine flow control
+ * for both the PHY and the link partner. The following
+ * table, taken out of the IEEE 802.3ab/D6.0 dated March 25,
+ * 1999, describes these PAUSE resolution bits and how flow
+ * control is determined based upon these settings.
+ * NOTE: DC = Don't Care
+ *
+ * LOCAL DEVICE | LINK PARTNER
+ * PAUSE | ASM_DIR | PAUSE | ASM_DIR | NIC Resolution
+ *-------|---------|-------|---------|--------------------
+ * 0 | 0 | DC | DC | e1000_fc_none
+ * 0 | 1 | 0 | DC | e1000_fc_none
+ * 0 | 1 | 1 | 0 | e1000_fc_none
+ * 0 | 1 | 1 | 1 | e1000_fc_tx_pause
+ * 1 | 0 | 0 | DC | e1000_fc_none
+ * 1 | DC | 1 | DC | e1000_fc_full
+ * 1 | 1 | 0 | 0 | e1000_fc_none
+ * 1 | 1 | 0 | 1 | e1000_fc_rx_pause
+ *
+ * Are both PAUSE bits set to 1? If so, this implies
+ * Symmetric Flow Control is enabled at both ends. The
+ * ASM_DIR bits are irrelevant per the spec.
+ *
+ * For Symmetric Flow Control:
+ *
+ * LOCAL DEVICE | LINK PARTNER
+ * PAUSE | ASM_DIR | PAUSE | ASM_DIR | Result
+ *-------|---------|-------|---------|--------------------
+ * 1 | DC | 1 | DC | E1000_fc_full
+ *
+ */
+ if ((mii_nway_adv_reg & ADVERTISE_PAUSE_CAP) &&
+ (mii_nway_lp_ability_reg & LPA_PAUSE_CAP)) {
+ /* Now we need to check if the user selected Rx ONLY
+ * of pause frames. In this case, we had to advertise
+ * FULL flow control because we could not advertise Rx
+ * ONLY. Hence, we must now check to see if we need to
+ * turn OFF the TRANSMISSION of PAUSE frames.
+ */
+ if (hw->fc.requested_mode == e1000_fc_full) {
+ hw->fc.current_mode = e1000_fc_full;
+ e_dbg("Flow Control = FULL.\n");
+ } else {
+ hw->fc.current_mode = e1000_fc_rx_pause;
+ e_dbg("Flow Control = Rx PAUSE frames only.\n");
+ }
+ }
+ /* For receiving PAUSE frames ONLY.
+ *
+ * LOCAL DEVICE | LINK PARTNER
+ * PAUSE | ASM_DIR | PAUSE | ASM_DIR | Result
+ *-------|---------|-------|---------|--------------------
+ * 0 | 1 | 1 | 1 | e1000_fc_tx_pause
+ */
+ else if (!(mii_nway_adv_reg & ADVERTISE_PAUSE_CAP) &&
+ (mii_nway_adv_reg & ADVERTISE_PAUSE_ASYM) &&
+ (mii_nway_lp_ability_reg & LPA_PAUSE_CAP) &&
+ (mii_nway_lp_ability_reg & LPA_PAUSE_ASYM)) {
+ hw->fc.current_mode = e1000_fc_tx_pause;
+ e_dbg("Flow Control = Tx PAUSE frames only.\n");
+ }
+ /* For transmitting PAUSE frames ONLY.
+ *
+ * LOCAL DEVICE | LINK PARTNER
+ * PAUSE | ASM_DIR | PAUSE | ASM_DIR | Result
+ *-------|---------|-------|---------|--------------------
+ * 1 | 1 | 0 | 1 | e1000_fc_rx_pause
+ */
+ else if ((mii_nway_adv_reg & ADVERTISE_PAUSE_CAP) &&
+ (mii_nway_adv_reg & ADVERTISE_PAUSE_ASYM) &&
+ !(mii_nway_lp_ability_reg & LPA_PAUSE_CAP) &&
+ (mii_nway_lp_ability_reg & LPA_PAUSE_ASYM)) {
+ hw->fc.current_mode = e1000_fc_rx_pause;
+ e_dbg("Flow Control = Rx PAUSE frames only.\n");
+ } else {
+ /* Per the IEEE spec, at this point flow control
+ * should be disabled.
+ */
+ hw->fc.current_mode = e1000_fc_none;
+ e_dbg("Flow Control = NONE.\n");
+ }
+
+ /* Now we need to do one last check... If we auto-
+ * negotiated to HALF DUPLEX, flow control should not be
+ * enabled per IEEE 802.3 spec.
+ */
+ ret_val = mac->ops.get_link_up_info(hw, &speed, &duplex);
+ if (ret_val) {
+ e_dbg("Error getting link speed and duplex\n");
+ return ret_val;
+ }
+
+ if (duplex == HALF_DUPLEX)
+ hw->fc.current_mode = e1000_fc_none;
+
+ /* Now we call a subroutine to actually force the MAC
+ * controller to use the correct flow control settings.
+ */
+ ret_val = e1000e_force_mac_fc(hw);
+ if (ret_val) {
+ e_dbg("Error forcing flow control settings\n");
+ return ret_val;
+ }
+ }
+
+ /* Check for the case where we have SerDes media and auto-neg is
+ * enabled. In this case, we need to check and see if Auto-Neg
+ * has completed, and if so, how the PHY and link partner has
+ * flow control configured.
+ */
+ if ((hw->phy.media_type == e1000_media_type_internal_serdes) &&
+ mac->autoneg) {
+ /* Read the PCS_LSTS and check to see if AutoNeg
+ * has completed.
+ */
+ pcs_status_reg = er32(PCS_LSTAT);
+
+ if (!(pcs_status_reg & E1000_PCS_LSTS_AN_COMPLETE)) {
+ e_dbg("PCS Auto Neg has not completed.\n");
+ return ret_val;
+ }
+
+ /* The AutoNeg process has completed, so we now need to
+ * read both the Auto Negotiation Advertisement
+ * Register (PCS_ANADV) and the Auto_Negotiation Base
+ * Page Ability Register (PCS_LPAB) to determine how
+ * flow control was negotiated.
+ */
+ pcs_adv_reg = er32(PCS_ANADV);
+ pcs_lp_ability_reg = er32(PCS_LPAB);
+
+ /* Two bits in the Auto Negotiation Advertisement Register
+ * (PCS_ANADV) and two bits in the Auto Negotiation Base
+ * Page Ability Register (PCS_LPAB) determine flow control
+ * for both the PHY and the link partner. The following
+ * table, taken out of the IEEE 802.3ab/D6.0 dated March 25,
+ * 1999, describes these PAUSE resolution bits and how flow
+ * control is determined based upon these settings.
+ * NOTE: DC = Don't Care
+ *
+ * LOCAL DEVICE | LINK PARTNER
+ * PAUSE | ASM_DIR | PAUSE | ASM_DIR | NIC Resolution
+ *-------|---------|-------|---------|--------------------
+ * 0 | 0 | DC | DC | e1000_fc_none
+ * 0 | 1 | 0 | DC | e1000_fc_none
+ * 0 | 1 | 1 | 0 | e1000_fc_none
+ * 0 | 1 | 1 | 1 | e1000_fc_tx_pause
+ * 1 | 0 | 0 | DC | e1000_fc_none
+ * 1 | DC | 1 | DC | e1000_fc_full
+ * 1 | 1 | 0 | 0 | e1000_fc_none
+ * 1 | 1 | 0 | 1 | e1000_fc_rx_pause
+ *
+ * Are both PAUSE bits set to 1? If so, this implies
+ * Symmetric Flow Control is enabled at both ends. The
+ * ASM_DIR bits are irrelevant per the spec.
+ *
+ * For Symmetric Flow Control:
+ *
+ * LOCAL DEVICE | LINK PARTNER
+ * PAUSE | ASM_DIR | PAUSE | ASM_DIR | Result
+ *-------|---------|-------|---------|--------------------
+ * 1 | DC | 1 | DC | e1000_fc_full
+ *
+ */
+ if ((pcs_adv_reg & E1000_TXCW_PAUSE) &&
+ (pcs_lp_ability_reg & E1000_TXCW_PAUSE)) {
+ /* Now we need to check if the user selected Rx ONLY
+ * of pause frames. In this case, we had to advertise
+ * FULL flow control because we could not advertise Rx
+ * ONLY. Hence, we must now check to see if we need to
+ * turn OFF the TRANSMISSION of PAUSE frames.
+ */
+ if (hw->fc.requested_mode == e1000_fc_full) {
+ hw->fc.current_mode = e1000_fc_full;
+ e_dbg("Flow Control = FULL.\n");
+ } else {
+ hw->fc.current_mode = e1000_fc_rx_pause;
+ e_dbg("Flow Control = Rx PAUSE frames only.\n");
+ }
+ }
+ /* For receiving PAUSE frames ONLY.
+ *
+ * LOCAL DEVICE | LINK PARTNER
+ * PAUSE | ASM_DIR | PAUSE | ASM_DIR | Result
+ *-------|---------|-------|---------|--------------------
+ * 0 | 1 | 1 | 1 | e1000_fc_tx_pause
+ */
+ else if (!(pcs_adv_reg & E1000_TXCW_PAUSE) &&
+ (pcs_adv_reg & E1000_TXCW_ASM_DIR) &&
+ (pcs_lp_ability_reg & E1000_TXCW_PAUSE) &&
+ (pcs_lp_ability_reg & E1000_TXCW_ASM_DIR)) {
+ hw->fc.current_mode = e1000_fc_tx_pause;
+ e_dbg("Flow Control = Tx PAUSE frames only.\n");
+ }
+ /* For transmitting PAUSE frames ONLY.
+ *
+ * LOCAL DEVICE | LINK PARTNER
+ * PAUSE | ASM_DIR | PAUSE | ASM_DIR | Result
+ *-------|---------|-------|---------|--------------------
+ * 1 | 1 | 0 | 1 | e1000_fc_rx_pause
+ */
+ else if ((pcs_adv_reg & E1000_TXCW_PAUSE) &&
+ (pcs_adv_reg & E1000_TXCW_ASM_DIR) &&
+ !(pcs_lp_ability_reg & E1000_TXCW_PAUSE) &&
+ (pcs_lp_ability_reg & E1000_TXCW_ASM_DIR)) {
+ hw->fc.current_mode = e1000_fc_rx_pause;
+ e_dbg("Flow Control = Rx PAUSE frames only.\n");
+ } else {
+ /* Per the IEEE spec, at this point flow control
+ * should be disabled.
+ */
+ hw->fc.current_mode = e1000_fc_none;
+ e_dbg("Flow Control = NONE.\n");
+ }
+
+ /* Now we call a subroutine to actually force the MAC
+ * controller to use the correct flow control settings.
+ */
+ pcs_ctrl_reg = er32(PCS_LCTL);
+ pcs_ctrl_reg |= E1000_PCS_LCTL_FORCE_FCTRL;
+ ew32(PCS_LCTL, pcs_ctrl_reg);
+
+ ret_val = e1000e_force_mac_fc(hw);
+ if (ret_val) {
+ e_dbg("Error forcing flow control settings\n");
+ return ret_val;
+ }
+ }
+
+ return 0;
+}
+
+/**
+ * e1000e_get_speed_and_duplex_copper - Retrieve current speed/duplex
+ * @hw: pointer to the HW structure
+ * @speed: stores the current speed
+ * @duplex: stores the current duplex
+ *
+ * Read the status register for the current speed/duplex and store the current
+ * speed and duplex for copper connections.
+ **/
+s32 e1000e_get_speed_and_duplex_copper(struct e1000_hw *hw, u16 *speed,
+ u16 *duplex)
+{
+ u32 status;
+
+ status = er32(STATUS);
+ if (status & E1000_STATUS_SPEED_1000)
+ *speed = SPEED_1000;
+ else if (status & E1000_STATUS_SPEED_100)
+ *speed = SPEED_100;
+ else
+ *speed = SPEED_10;
+
+ if (status & E1000_STATUS_FD)
+ *duplex = FULL_DUPLEX;
+ else
+ *duplex = HALF_DUPLEX;
+
+ e_dbg("%u Mbps, %s Duplex\n",
+ *speed == SPEED_1000 ? 1000 : *speed == SPEED_100 ? 100 : 10,
+ *duplex == FULL_DUPLEX ? "Full" : "Half");
+
+ return 0;
+}
+
+/**
+ * e1000e_get_speed_and_duplex_fiber_serdes - Retrieve current speed/duplex
+ * @hw: pointer to the HW structure
+ * @speed: stores the current speed
+ * @duplex: stores the current duplex
+ *
+ * Sets the speed and duplex to gigabit full duplex (the only possible option)
+ * for fiber/serdes links.
+ **/
+s32 e1000e_get_speed_and_duplex_fiber_serdes(struct e1000_hw __always_unused
+ *hw, u16 *speed, u16 *duplex)
+{
+ *speed = SPEED_1000;
+ *duplex = FULL_DUPLEX;
+
+ return 0;
+}
+
+/**
+ * e1000e_get_hw_semaphore - Acquire hardware semaphore
+ * @hw: pointer to the HW structure
+ *
+ * Acquire the HW semaphore to access the PHY or NVM
+ **/
+s32 e1000e_get_hw_semaphore(struct e1000_hw *hw)
+{
+ u32 swsm;
+ s32 timeout = hw->nvm.word_size + 1;
+ s32 i = 0;
+
+ /* Get the SW semaphore */
+ while (i < timeout) {
+ swsm = er32(SWSM);
+ if (!(swsm & E1000_SWSM_SMBI))
+ break;
+
+ usleep_range(50, 100);
+ i++;
+ }
+
+ if (i == timeout) {
+ e_dbg("Driver can't access device - SMBI bit is set.\n");
+ return -E1000_ERR_NVM;
+ }
+
+ /* Get the FW semaphore. */
+ for (i = 0; i < timeout; i++) {
+ swsm = er32(SWSM);
+ ew32(SWSM, swsm | E1000_SWSM_SWESMBI);
+
+ /* Semaphore acquired if bit latched */
+ if (er32(SWSM) & E1000_SWSM_SWESMBI)
+ break;
+
+ usleep_range(50, 100);
+ }
+
+ if (i == timeout) {
+ /* Release semaphores */
+ e1000e_put_hw_semaphore(hw);
+ e_dbg("Driver can't access the NVM\n");
+ return -E1000_ERR_NVM;
+ }
+
+ return 0;
+}
+
+/**
+ * e1000e_put_hw_semaphore - Release hardware semaphore
+ * @hw: pointer to the HW structure
+ *
+ * Release hardware semaphore used to access the PHY or NVM
+ **/
+void e1000e_put_hw_semaphore(struct e1000_hw *hw)
+{
+ u32 swsm;
+
+ swsm = er32(SWSM);
+
+ swsm &= ~(E1000_SWSM_SMBI | E1000_SWSM_SWESMBI);
+
+ ew32(SWSM, swsm);
+}
+
+/**
+ * e1000e_get_auto_rd_done - Check for auto read completion
+ * @hw: pointer to the HW structure
+ *
+ * Check EEPROM for Auto Read done bit.
+ **/
+s32 e1000e_get_auto_rd_done(struct e1000_hw *hw)
+{
+ s32 i = 0;
+
+ while (i < AUTO_READ_DONE_TIMEOUT) {
+ if (er32(EECD) & E1000_EECD_AUTO_RD)
+ break;
+ usleep_range(1000, 2000);
+ i++;
+ }
+
+ if (i == AUTO_READ_DONE_TIMEOUT) {
+ e_dbg("Auto read by HW from NVM has not completed.\n");
+ return -E1000_ERR_RESET;
+ }
+
+ return 0;
+}
+
+/**
+ * e1000e_valid_led_default - Verify a valid default LED config
+ * @hw: pointer to the HW structure
+ * @data: pointer to the NVM (EEPROM)
+ *
+ * Read the EEPROM for the current default LED configuration. If the
+ * LED configuration is not valid, set to a valid LED configuration.
+ **/
+s32 e1000e_valid_led_default(struct e1000_hw *hw, u16 *data)
+{
+ s32 ret_val;
+
+ ret_val = e1000_read_nvm(hw, NVM_ID_LED_SETTINGS, 1, data);
+ if (ret_val) {
+ e_dbg("NVM Read Error\n");
+ return ret_val;
+ }
+
+ if (*data == ID_LED_RESERVED_0000 || *data == ID_LED_RESERVED_FFFF)
+ *data = ID_LED_DEFAULT;
+
+ return 0;
+}
+
+/**
+ * e1000e_id_led_init_generic -
+ * @hw: pointer to the HW structure
+ *
+ **/
+s32 e1000e_id_led_init_generic(struct e1000_hw *hw)
+{
+ struct e1000_mac_info *mac = &hw->mac;
+ s32 ret_val;
+ const u32 ledctl_mask = 0x000000FF;
+ const u32 ledctl_on = E1000_LEDCTL_MODE_LED_ON;
+ const u32 ledctl_off = E1000_LEDCTL_MODE_LED_OFF;
+ u16 data, i, temp;
+ const u16 led_mask = 0x0F;
+
+ ret_val = hw->nvm.ops.valid_led_default(hw, &data);
+ if (ret_val)
+ return ret_val;
+
+ mac->ledctl_default = er32(LEDCTL);
+ mac->ledctl_mode1 = mac->ledctl_default;
+ mac->ledctl_mode2 = mac->ledctl_default;
+
+ for (i = 0; i < 4; i++) {
+ temp = (data >> (i << 2)) & led_mask;
+ switch (temp) {
+ case ID_LED_ON1_DEF2:
+ case ID_LED_ON1_ON2:
+ case ID_LED_ON1_OFF2:
+ mac->ledctl_mode1 &= ~(ledctl_mask << (i << 3));
+ mac->ledctl_mode1 |= ledctl_on << (i << 3);
+ break;
+ case ID_LED_OFF1_DEF2:
+ case ID_LED_OFF1_ON2:
+ case ID_LED_OFF1_OFF2:
+ mac->ledctl_mode1 &= ~(ledctl_mask << (i << 3));
+ mac->ledctl_mode1 |= ledctl_off << (i << 3);
+ break;
+ default:
+ /* Do nothing */
+ break;
+ }
+ switch (temp) {
+ case ID_LED_DEF1_ON2:
+ case ID_LED_ON1_ON2:
+ case ID_LED_OFF1_ON2:
+ mac->ledctl_mode2 &= ~(ledctl_mask << (i << 3));
+ mac->ledctl_mode2 |= ledctl_on << (i << 3);
+ break;
+ case ID_LED_DEF1_OFF2:
+ case ID_LED_ON1_OFF2:
+ case ID_LED_OFF1_OFF2:
+ mac->ledctl_mode2 &= ~(ledctl_mask << (i << 3));
+ mac->ledctl_mode2 |= ledctl_off << (i << 3);
+ break;
+ default:
+ /* Do nothing */
+ break;
+ }
+ }
+
+ return 0;
+}
+
+/**
+ * e1000e_setup_led_generic - Configures SW controllable LED
+ * @hw: pointer to the HW structure
+ *
+ * This prepares the SW controllable LED for use and saves the current state
+ * of the LED so it can be later restored.
+ **/
+s32 e1000e_setup_led_generic(struct e1000_hw *hw)
+{
+ u32 ledctl;
+
+ if (hw->mac.ops.setup_led != e1000e_setup_led_generic)
+ return -E1000_ERR_CONFIG;
+
+ if (hw->phy.media_type == e1000_media_type_fiber) {
+ ledctl = er32(LEDCTL);
+ hw->mac.ledctl_default = ledctl;
+ /* Turn off LED0 */
+ ledctl &= ~(E1000_LEDCTL_LED0_IVRT | E1000_LEDCTL_LED0_BLINK |
+ E1000_LEDCTL_LED0_MODE_MASK);
+ ledctl |= (E1000_LEDCTL_MODE_LED_OFF <<
+ E1000_LEDCTL_LED0_MODE_SHIFT);
+ ew32(LEDCTL, ledctl);
+ } else if (hw->phy.media_type == e1000_media_type_copper) {
+ ew32(LEDCTL, hw->mac.ledctl_mode1);
+ }
+
+ return 0;
+}
+
+/**
+ * e1000e_cleanup_led_generic - Set LED config to default operation
+ * @hw: pointer to the HW structure
+ *
+ * Remove the current LED configuration and set the LED configuration
+ * to the default value, saved from the EEPROM.
+ **/
+s32 e1000e_cleanup_led_generic(struct e1000_hw *hw)
+{
+ ew32(LEDCTL, hw->mac.ledctl_default);
+ return 0;
+}
+
+/**
+ * e1000e_blink_led_generic - Blink LED
+ * @hw: pointer to the HW structure
+ *
+ * Blink the LEDs which are set to be on.
+ **/
+s32 e1000e_blink_led_generic(struct e1000_hw *hw)
+{
+ u32 ledctl_blink = 0;
+ u32 i;
+
+ if (hw->phy.media_type == e1000_media_type_fiber) {
+ /* always blink LED0 for PCI-E fiber */
+ ledctl_blink = E1000_LEDCTL_LED0_BLINK |
+ (E1000_LEDCTL_MODE_LED_ON << E1000_LEDCTL_LED0_MODE_SHIFT);
+ } else {
+ /* Set the blink bit for each LED that's "on" (0x0E)
+ * (or "off" if inverted) in ledctl_mode2. The blink
+ * logic in hardware only works when mode is set to "on"
+ * so it must be changed accordingly when the mode is
+ * "off" and inverted.
+ */
+ ledctl_blink = hw->mac.ledctl_mode2;
+ for (i = 0; i < 32; i += 8) {
+ u32 mode = (hw->mac.ledctl_mode2 >> i) &
+ E1000_LEDCTL_LED0_MODE_MASK;
+ u32 led_default = hw->mac.ledctl_default >> i;
+
+ if ((!(led_default & E1000_LEDCTL_LED0_IVRT) &&
+ (mode == E1000_LEDCTL_MODE_LED_ON)) ||
+ ((led_default & E1000_LEDCTL_LED0_IVRT) &&
+ (mode == E1000_LEDCTL_MODE_LED_OFF))) {
+ ledctl_blink &=
+ ~(E1000_LEDCTL_LED0_MODE_MASK << i);
+ ledctl_blink |= (E1000_LEDCTL_LED0_BLINK |
+ E1000_LEDCTL_MODE_LED_ON) << i;
+ }
+ }
+ }
+
+ ew32(LEDCTL, ledctl_blink);
+
+ return 0;
+}
+
+/**
+ * e1000e_led_on_generic - Turn LED on
+ * @hw: pointer to the HW structure
+ *
+ * Turn LED on.
+ **/
+s32 e1000e_led_on_generic(struct e1000_hw *hw)
+{
+ u32 ctrl;
+
+ switch (hw->phy.media_type) {
+ case e1000_media_type_fiber:
+ ctrl = er32(CTRL);
+ ctrl &= ~E1000_CTRL_SWDPIN0;
+ ctrl |= E1000_CTRL_SWDPIO0;
+ ew32(CTRL, ctrl);
+ break;
+ case e1000_media_type_copper:
+ ew32(LEDCTL, hw->mac.ledctl_mode2);
+ break;
+ default:
+ break;
+ }
+
+ return 0;
+}
+
+/**
+ * e1000e_led_off_generic - Turn LED off
+ * @hw: pointer to the HW structure
+ *
+ * Turn LED off.
+ **/
+s32 e1000e_led_off_generic(struct e1000_hw *hw)
+{
+ u32 ctrl;
+
+ switch (hw->phy.media_type) {
+ case e1000_media_type_fiber:
+ ctrl = er32(CTRL);
+ ctrl |= E1000_CTRL_SWDPIN0;
+ ctrl |= E1000_CTRL_SWDPIO0;
+ ew32(CTRL, ctrl);
+ break;
+ case e1000_media_type_copper:
+ ew32(LEDCTL, hw->mac.ledctl_mode1);
+ break;
+ default:
+ break;
+ }
+
+ return 0;
+}
+
+/**
+ * e1000e_set_pcie_no_snoop - Set PCI-express capabilities
+ * @hw: pointer to the HW structure
+ * @no_snoop: bitmap of snoop events
+ *
+ * Set the PCI-express register to snoop for events enabled in 'no_snoop'.
+ **/
+void e1000e_set_pcie_no_snoop(struct e1000_hw *hw, u32 no_snoop)
+{
+ u32 gcr;
+
+ if (no_snoop) {
+ gcr = er32(GCR);
+ gcr &= ~(PCIE_NO_SNOOP_ALL);
+ gcr |= no_snoop;
+ ew32(GCR, gcr);
+ }
+}
+
+/**
+ * e1000e_disable_pcie_master - Disables PCI-express master access
+ * @hw: pointer to the HW structure
+ *
+ * Returns 0 if successful, else returns -10
+ * (-E1000_ERR_MASTER_REQUESTS_PENDING) if master disable bit has not caused
+ * the master requests to be disabled.
+ *
+ * Disables PCI-Express master access and verifies there are no pending
+ * requests.
+ **/
+s32 e1000e_disable_pcie_master(struct e1000_hw *hw)
+{
+ u32 ctrl;
+ s32 timeout = MASTER_DISABLE_TIMEOUT;
+
+ ctrl = er32(CTRL);
+ ctrl |= E1000_CTRL_GIO_MASTER_DISABLE;
+ ew32(CTRL, ctrl);
+
+ while (timeout) {
+ if (!(er32(STATUS) & E1000_STATUS_GIO_MASTER_ENABLE))
+ break;
+ usleep_range(100, 200);
+ timeout--;
+ }
+
+ if (!timeout) {
+ e_dbg("Master requests are pending.\n");
+ return -E1000_ERR_MASTER_REQUESTS_PENDING;
+ }
+
+ return 0;
+}
+
+/**
+ * e1000e_reset_adaptive - Reset Adaptive Interframe Spacing
+ * @hw: pointer to the HW structure
+ *
+ * Reset the Adaptive Interframe Spacing throttle to default values.
+ **/
+void e1000e_reset_adaptive(struct e1000_hw *hw)
+{
+ struct e1000_mac_info *mac = &hw->mac;
+
+ if (!mac->adaptive_ifs) {
+ e_dbg("Not in Adaptive IFS mode!\n");
+ return;
+ }
+
+ mac->current_ifs_val = 0;
+ mac->ifs_min_val = IFS_MIN;
+ mac->ifs_max_val = IFS_MAX;
+ mac->ifs_step_size = IFS_STEP;
+ mac->ifs_ratio = IFS_RATIO;
+
+ mac->in_ifs_mode = false;
+ ew32(AIT, 0);
+}
+
+/**
+ * e1000e_update_adaptive - Update Adaptive Interframe Spacing
+ * @hw: pointer to the HW structure
+ *
+ * Update the Adaptive Interframe Spacing Throttle value based on the
+ * time between transmitted packets and time between collisions.
+ **/
+void e1000e_update_adaptive(struct e1000_hw *hw)
+{
+ struct e1000_mac_info *mac = &hw->mac;
+
+ if (!mac->adaptive_ifs) {
+ e_dbg("Not in Adaptive IFS mode!\n");
+ return;
+ }
+
+ if ((mac->collision_delta * mac->ifs_ratio) > mac->tx_packet_delta) {
+ if (mac->tx_packet_delta > MIN_NUM_XMITS) {
+ mac->in_ifs_mode = true;
+ if (mac->current_ifs_val < mac->ifs_max_val) {
+ if (!mac->current_ifs_val)
+ mac->current_ifs_val = mac->ifs_min_val;
+ else
+ mac->current_ifs_val +=
+ mac->ifs_step_size;
+ ew32(AIT, mac->current_ifs_val);
+ }
+ }
+ } else {
+ if (mac->in_ifs_mode &&
+ (mac->tx_packet_delta <= MIN_NUM_XMITS)) {
+ mac->current_ifs_val = 0;
+ mac->in_ifs_mode = false;
+ ew32(AIT, 0);
+ }
+ }
+}
+
+/**
+ * e1000e_validate_mdi_setting_generic - Verify MDI/MDIx settings
+ * @hw: pointer to the HW structure
+ *
+ * Verify that when not using auto-negotiation that MDI/MDIx is correctly
+ * set, which is forced to MDI mode only.
+ **/
+s32 e1000e_validate_mdi_setting_generic(struct e1000_hw *hw)
+{
+ if (!hw->mac.autoneg && (hw->phy.mdix == 0 || hw->phy.mdix == 3)) {
+ e_dbg("Invalid MDI setting detected\n");
+ hw->phy.mdix = 1;
+ return -E1000_ERR_CONFIG;
+ }
+
+ return 0;
+}
+
+/**
+ * e1000e_validate_mdi_setting_crossover_generic - Verify MDI/MDIx settings
+ * @hw: pointer to the HW structure
+ *
+ * Validate the MDI/MDIx setting, allowing for auto-crossover during forced
+ * operation.
+ **/
+s32 e1000e_validate_mdi_setting_crossover_generic(struct e1000_hw
+ __always_unused *hw)
+{
+ return 0;
+}
diff --git a/src/mac.h b/src/mac.h
new file mode 100644
index 0000000..0e3f86d
--- /dev/null
+++ b/src/mac.h
@@ -0,0 +1,51 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/* Copyright(c) 1999 - 2020 Intel Corporation. */
+
+#ifndef _E1000E_MAC_H_
+#define _E1000E_MAC_H_
+
+s32 e1000e_blink_led_generic(struct e1000_hw *hw);
+s32 e1000e_check_for_copper_link(struct e1000_hw *hw);
+s32 e1000e_check_for_fiber_link(struct e1000_hw *hw);
+s32 e1000e_check_for_serdes_link(struct e1000_hw *hw);
+s32 e1000e_cleanup_led_generic(struct e1000_hw *hw);
+s32 e1000e_config_fc_after_link_up(struct e1000_hw *hw);
+s32 e1000e_disable_pcie_master(struct e1000_hw *hw);
+s32 e1000e_force_mac_fc(struct e1000_hw *hw);
+s32 e1000e_get_auto_rd_done(struct e1000_hw *hw);
+s32 e1000e_get_bus_info_pcie(struct e1000_hw *hw);
+void e1000_set_lan_id_single_port(struct e1000_hw *hw);
+s32 e1000e_get_hw_semaphore(struct e1000_hw *hw);
+s32 e1000e_get_speed_and_duplex_copper(struct e1000_hw *hw, u16 *speed,
+ u16 *duplex);
+s32 e1000e_get_speed_and_duplex_fiber_serdes(struct e1000_hw *hw,
+ u16 *speed, u16 *duplex);
+s32 e1000e_id_led_init_generic(struct e1000_hw *hw);
+s32 e1000e_led_on_generic(struct e1000_hw *hw);
+s32 e1000e_led_off_generic(struct e1000_hw *hw);
+void e1000e_update_mc_addr_list_generic(struct e1000_hw *hw,
+ u8 *mc_addr_list, u32 mc_addr_count);
+int e1000e_rar_set_generic(struct e1000_hw *hw, u8 *addr, u32 index);
+s32 e1000e_set_fc_watermarks(struct e1000_hw *hw);
+s32 e1000e_setup_fiber_serdes_link(struct e1000_hw *hw);
+s32 e1000e_setup_led_generic(struct e1000_hw *hw);
+s32 e1000e_setup_link_generic(struct e1000_hw *hw);
+s32 e1000e_validate_mdi_setting_generic(struct e1000_hw *hw);
+s32 e1000e_validate_mdi_setting_crossover_generic(struct e1000_hw *hw);
+
+void e1000e_clear_hw_cntrs_base(struct e1000_hw *hw);
+void e1000_clear_vfta_generic(struct e1000_hw *hw);
+void e1000e_init_rx_addrs(struct e1000_hw *hw, u16 rar_count);
+void e1000e_put_hw_semaphore(struct e1000_hw *hw);
+s32 e1000_check_alt_mac_addr_generic(struct e1000_hw *hw);
+void e1000e_reset_adaptive(struct e1000_hw *hw);
+void e1000e_set_pcie_no_snoop(struct e1000_hw *hw, u32 no_snoop);
+void e1000e_update_adaptive(struct e1000_hw *hw);
+void e1000_write_vfta_generic(struct e1000_hw *hw, u32 offset, u32 value);
+
+void e1000_set_lan_id_multi_port_pcie(struct e1000_hw *hw);
+u32 e1000e_rar_get_count_generic(struct e1000_hw *hw);
+int e1000e_rar_set_generic(struct e1000_hw *hw, u8 *addr, u32 index);
+void e1000e_config_collision_dist_generic(struct e1000_hw *hw);
+
+#endif
diff --git a/src/manage.c b/src/manage.c
new file mode 100644
index 0000000..6d80e7f
--- /dev/null
+++ b/src/manage.c
@@ -0,0 +1,330 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright(c) 1999 - 2020 Intel Corporation. */
+
+#include "e1000.h"
+#include "manage.h"
+
+/**
+ * e1000_calculate_checksum - Calculate checksum for buffer
+ * @buffer: pointer to EEPROM
+ * @length: size of EEPROM to calculate a checksum for
+ *
+ * Calculates the checksum for some buffer on a specified length. The
+ * checksum calculated is returned.
+ **/
+static u8 e1000_calculate_checksum(u8 *buffer, u32 length)
+{
+ u32 i;
+ u8 sum = 0;
+
+ if (!buffer)
+ return 0;
+
+ for (i = 0; i < length; i++)
+ sum += buffer[i];
+
+ return (u8)(0 - sum);
+}
+
+/**
+ * e1000_mng_enable_host_if - Checks host interface is enabled
+ * @hw: pointer to the HW structure
+ *
+ * Returns E1000_success upon success, else E1000_ERR_HOST_INTERFACE_COMMAND
+ *
+ * This function checks whether the HOST IF is enabled for command operation
+ * and also checks whether the previous command is completed. It busy waits
+ * in case of previous command is not completed.
+ **/
+static s32 e1000_mng_enable_host_if(struct e1000_hw *hw)
+{
+ u32 hicr;
+ u8 i;
+
+ if (!hw->mac.arc_subsystem_valid) {
+ e_dbg("ARC subsystem not valid.\n");
+ return -E1000_ERR_HOST_INTERFACE_COMMAND;
+ }
+
+ /* Check that the host interface is enabled. */
+ hicr = er32(HICR);
+ if (!(hicr & E1000_HICR_EN)) {
+ e_dbg("E1000_HOST_EN bit disabled.\n");
+ return -E1000_ERR_HOST_INTERFACE_COMMAND;
+ }
+ /* check the previous command is completed */
+ for (i = 0; i < E1000_MNG_DHCP_COMMAND_TIMEOUT; i++) {
+ hicr = er32(HICR);
+ if (!(hicr & E1000_HICR_C))
+ break;
+ mdelay(1);
+ }
+
+ if (i == E1000_MNG_DHCP_COMMAND_TIMEOUT) {
+ e_dbg("Previous command timeout failed .\n");
+ return -E1000_ERR_HOST_INTERFACE_COMMAND;
+ }
+
+ return 0;
+}
+
+/**
+ * e1000e_check_mng_mode_generic - Generic check management mode
+ * @hw: pointer to the HW structure
+ *
+ * Reads the firmware semaphore register and returns true (>0) if
+ * manageability is enabled, else false (0).
+ **/
+bool e1000e_check_mng_mode_generic(struct e1000_hw *hw)
+{
+ u32 fwsm = er32(FWSM);
+
+ return (fwsm & E1000_FWSM_MODE_MASK) ==
+ (E1000_MNG_IAMT_MODE << E1000_FWSM_MODE_SHIFT);
+}
+
+/**
+ * e1000e_enable_tx_pkt_filtering - Enable packet filtering on Tx
+ * @hw: pointer to the HW structure
+ *
+ * Enables packet filtering on transmit packets if manageability is enabled
+ * and host interface is enabled.
+ **/
+bool e1000e_enable_tx_pkt_filtering(struct e1000_hw *hw)
+{
+ struct e1000_host_mng_dhcp_cookie *hdr = &hw->mng_cookie;
+ u32 *buffer = (u32 *)&hw->mng_cookie;
+ u32 offset;
+ s32 ret_val, hdr_csum, csum;
+ u8 i, len;
+
+ hw->mac.tx_pkt_filtering = true;
+
+ /* No manageability, no filtering */
+ if (!hw->mac.ops.check_mng_mode(hw)) {
+ hw->mac.tx_pkt_filtering = false;
+ return hw->mac.tx_pkt_filtering;
+ }
+
+ /* If we can't read from the host interface for whatever
+ * reason, disable filtering.
+ */
+ ret_val = e1000_mng_enable_host_if(hw);
+ if (ret_val) {
+ hw->mac.tx_pkt_filtering = false;
+ return hw->mac.tx_pkt_filtering;
+ }
+
+ /* Read in the header. Length and offset are in dwords. */
+ len = E1000_MNG_DHCP_COOKIE_LENGTH >> 2;
+ offset = E1000_MNG_DHCP_COOKIE_OFFSET >> 2;
+ for (i = 0; i < len; i++)
+ *(buffer + i) = E1000_READ_REG_ARRAY(hw, E1000_HOST_IF,
+ offset + i);
+ hdr_csum = hdr->checksum;
+ hdr->checksum = 0;
+ csum = e1000_calculate_checksum((u8 *)hdr,
+ E1000_MNG_DHCP_COOKIE_LENGTH);
+ /* If either the checksums or signature don't match, then
+ * the cookie area isn't considered valid, in which case we
+ * take the safe route of assuming Tx filtering is enabled.
+ */
+ if ((hdr_csum != csum) || (hdr->signature != E1000_IAMT_SIGNATURE)) {
+ hw->mac.tx_pkt_filtering = true;
+ return hw->mac.tx_pkt_filtering;
+ }
+
+ /* Cookie area is valid, make the final check for filtering. */
+ if (!(hdr->status & E1000_MNG_DHCP_COOKIE_STATUS_PARSING))
+ hw->mac.tx_pkt_filtering = false;
+
+ return hw->mac.tx_pkt_filtering;
+}
+
+/**
+ * e1000_mng_write_cmd_header - Writes manageability command header
+ * @hw: pointer to the HW structure
+ * @hdr: pointer to the host interface command header
+ *
+ * Writes the command header after does the checksum calculation.
+ **/
+static s32 e1000_mng_write_cmd_header(struct e1000_hw *hw,
+ struct e1000_host_mng_command_header *hdr)
+{
+ u16 i, length = sizeof(struct e1000_host_mng_command_header);
+
+ /* Write the whole command header structure with new checksum. */
+
+ hdr->checksum = e1000_calculate_checksum((u8 *)hdr, length);
+
+ length >>= 2;
+ /* Write the relevant command block into the ram area. */
+ for (i = 0; i < length; i++) {
+ E1000_WRITE_REG_ARRAY(hw, E1000_HOST_IF, i, *((u32 *)hdr + i));
+ e1e_flush();
+ }
+
+ return 0;
+}
+
+/**
+ * e1000_mng_host_if_write - Write to the manageability host interface
+ * @hw: pointer to the HW structure
+ * @buffer: pointer to the host interface buffer
+ * @length: size of the buffer
+ * @offset: location in the buffer to write to
+ * @sum: sum of the data (not checksum)
+ *
+ * This function writes the buffer content at the offset given on the host if.
+ * It also does alignment considerations to do the writes in most efficient
+ * way. Also fills up the sum of the buffer in *buffer parameter.
+ **/
+static s32 e1000_mng_host_if_write(struct e1000_hw *hw, u8 *buffer,
+ u16 length, u16 offset, u8 *sum)
+{
+ u8 *tmp;
+ u8 *bufptr = buffer;
+ u32 data = 0;
+ u16 remaining, i, j, prev_bytes;
+
+ /* sum = only sum of the data and it is not checksum */
+
+ if (length == 0 || offset + length > E1000_HI_MAX_MNG_DATA_LENGTH)
+ return -E1000_ERR_PARAM;
+
+ tmp = (u8 *)&data;
+ prev_bytes = offset & 0x3;
+ offset >>= 2;
+
+ if (prev_bytes) {
+ data = E1000_READ_REG_ARRAY(hw, E1000_HOST_IF, offset);
+ for (j = prev_bytes; j < sizeof(u32); j++) {
+ *(tmp + j) = *bufptr++;
+ *sum += *(tmp + j);
+ }
+ E1000_WRITE_REG_ARRAY(hw, E1000_HOST_IF, offset, data);
+ length -= j - prev_bytes;
+ offset++;
+ }
+
+ remaining = length & 0x3;
+ length -= remaining;
+
+ /* Calculate length in DWORDs */
+ length >>= 2;
+
+ /* The device driver writes the relevant command block into the
+ * ram area.
+ */
+ for (i = 0; i < length; i++) {
+ for (j = 0; j < sizeof(u32); j++) {
+ *(tmp + j) = *bufptr++;
+ *sum += *(tmp + j);
+ }
+
+ E1000_WRITE_REG_ARRAY(hw, E1000_HOST_IF, offset + i, data);
+ }
+ if (remaining) {
+ for (j = 0; j < sizeof(u32); j++) {
+ if (j < remaining)
+ *(tmp + j) = *bufptr++;
+ else
+ *(tmp + j) = 0;
+
+ *sum += *(tmp + j);
+ }
+ E1000_WRITE_REG_ARRAY(hw, E1000_HOST_IF, offset + i, data);
+ }
+
+ return 0;
+}
+
+/**
+ * e1000e_mng_write_dhcp_info - Writes DHCP info to host interface
+ * @hw: pointer to the HW structure
+ * @buffer: pointer to the host interface
+ * @length: size of the buffer
+ *
+ * Writes the DHCP information to the host interface.
+ **/
+s32 e1000e_mng_write_dhcp_info(struct e1000_hw *hw, u8 *buffer, u16 length)
+{
+ struct e1000_host_mng_command_header hdr;
+ s32 ret_val;
+ u32 hicr;
+
+ hdr.command_id = E1000_MNG_DHCP_TX_PAYLOAD_CMD;
+ hdr.command_length = length;
+ hdr.reserved1 = 0;
+ hdr.reserved2 = 0;
+ hdr.checksum = 0;
+
+ /* Enable the host interface */
+ ret_val = e1000_mng_enable_host_if(hw);
+ if (ret_val)
+ return ret_val;
+
+ /* Populate the host interface with the contents of "buffer". */
+ ret_val = e1000_mng_host_if_write(hw, buffer, length,
+ sizeof(hdr), &(hdr.checksum));
+ if (ret_val)
+ return ret_val;
+
+ /* Write the manageability command header */
+ ret_val = e1000_mng_write_cmd_header(hw, &hdr);
+ if (ret_val)
+ return ret_val;
+
+ /* Tell the ARC a new command is pending. */
+ hicr = er32(HICR);
+ ew32(HICR, hicr | E1000_HICR_C);
+
+ return 0;
+}
+
+/**
+ * e1000e_enable_mng_pass_thru - Check if management passthrough is needed
+ * @hw: pointer to the HW structure
+ *
+ * Verifies the hardware needs to leave interface enabled so that frames can
+ * be directed to and from the management interface.
+ **/
+bool e1000e_enable_mng_pass_thru(struct e1000_hw *hw)
+{
+ u32 manc;
+ u32 fwsm, factps;
+
+ manc = er32(MANC);
+
+ if (!(manc & E1000_MANC_RCV_TCO_EN))
+ return false;
+
+ if (hw->mac.has_fwsm) {
+ fwsm = er32(FWSM);
+ factps = er32(FACTPS);
+
+ if (!(factps & E1000_FACTPS_MNGCG) &&
+ ((fwsm & E1000_FWSM_MODE_MASK) ==
+ (e1000_mng_mode_pt << E1000_FWSM_MODE_SHIFT)))
+ return true;
+ } else if ((hw->mac.type == e1000_82574) ||
+ (hw->mac.type == e1000_82583)) {
+ u16 data;
+ s32 ret_val;
+
+ factps = er32(FACTPS);
+ ret_val = e1000_read_nvm(hw, NVM_INIT_CONTROL2_REG, 1, &data);
+ if (ret_val)
+ return false;
+
+ if (!(factps & E1000_FACTPS_MNGCG) &&
+ ((data & E1000_NVM_INIT_CTRL2_MNGM) ==
+ (e1000_mng_mode_pt << 13)))
+ return true;
+ } else if ((manc & E1000_MANC_SMBUS_EN) &&
+ !(manc & E1000_MANC_ASF_EN)) {
+ return true;
+ }
+
+ return false;
+}
diff --git a/src/manage.h b/src/manage.h
new file mode 100644
index 0000000..04ccd98
--- /dev/null
+++ b/src/manage.h
@@ -0,0 +1,46 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/* Copyright(c) 1999 - 2020 Intel Corporation. */
+
+#ifndef _E1000E_MANAGE_H_
+#define _E1000E_MANAGE_H_
+
+bool e1000e_check_mng_mode_generic(struct e1000_hw *hw);
+bool e1000e_enable_tx_pkt_filtering(struct e1000_hw *hw);
+s32 e1000e_mng_write_dhcp_info(struct e1000_hw *hw, u8 *buffer, u16 length);
+bool e1000e_enable_mng_pass_thru(struct e1000_hw *hw);
+
+enum e1000_mng_mode {
+ e1000_mng_mode_none = 0,
+ e1000_mng_mode_asf,
+ e1000_mng_mode_pt,
+ e1000_mng_mode_ipmi,
+ e1000_mng_mode_host_if_only
+};
+
+#define E1000_FACTPS_MNGCG 0x20000000
+
+#define E1000_FWSM_MODE_MASK 0xE
+#define E1000_FWSM_MODE_SHIFT 1
+
+#define E1000_MNG_IAMT_MODE 0x3
+#define E1000_MNG_DHCP_COOKIE_LENGTH 0x10
+#define E1000_MNG_DHCP_COOKIE_OFFSET 0x6F0
+#define E1000_MNG_DHCP_COMMAND_TIMEOUT 10
+#define E1000_MNG_DHCP_TX_PAYLOAD_CMD 64
+#define E1000_MNG_DHCP_COOKIE_STATUS_PARSING 0x1
+#define E1000_MNG_DHCP_COOKIE_STATUS_VLAN 0x2
+
+#define E1000_VFTA_ENTRY_SHIFT 5
+#define E1000_VFTA_ENTRY_MASK 0x7F
+#define E1000_VFTA_ENTRY_BIT_SHIFT_MASK 0x1F
+
+#define E1000_HICR_EN 0x01 /* Enable bit - RO */
+/* Driver sets this bit when done to put command in RAM */
+#define E1000_HICR_C 0x02
+#define E1000_HICR_SV 0x04 /* Status Validity */
+#define E1000_HICR_FW_RESET_ENABLE 0x40
+#define E1000_HICR_FW_RESET 0x80
+
+/* Intel(R) Active Management Technology signature */
+#define E1000_IAMT_SIGNATURE 0x544D4149
+#endif
diff --git a/src/netdev.c b/src/netdev.c
new file mode 100644
index 0000000..a8eb9b7
--- /dev/null
+++ b/src/netdev.c
@@ -0,0 +1,9083 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright(c) 1999 - 2020 Intel Corporation. */
+
+#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
+
+#include <linux/module.h>
+#include <linux/types.h>
+#include <linux/init.h>
+#include <linux/pci.h>
+#include <linux/vmalloc.h>
+#include <linux/pagemap.h>
+#include <linux/delay.h>
+#include <linux/netdevice.h>
+#include <linux/interrupt.h>
+#include <linux/tcp.h>
+#include <linux/ipv6.h>
+#include <linux/slab.h>
+#ifdef NETIF_F_TSO
+#include <net/checksum.h>
+#ifdef NETIF_F_TSO6
+#include <net/ip6_checksum.h>
+#endif
+#endif
+#include <linux/ethtool.h>
+#if defined(NETIF_F_HW_VLAN_TX) || defined(NETIF_F_HW_VLAN_CTAG_TX)
+#include <linux/if_vlan.h>
+#endif
+#include <linux/prefetch.h>
+
+#include "e1000.h"
+
+#ifdef CONFIG_E1000E_NAPI
+#define DRV_EXTRAVERSION "" "-NAPI"
+#else
+#define DRV_EXTRAVERSION ""
+#endif
+
+#define DRV_VERSION "3.8.7" DRV_EXTRAVERSION
+char e1000e_driver_name[] = "e1000e";
+const char e1000e_driver_version[] = DRV_VERSION;
+
+#define DEFAULT_MSG_ENABLE (NETIF_MSG_DRV|NETIF_MSG_PROBE|NETIF_MSG_LINK)
+static int debug = -1;
+module_param(debug, int, 0);
+MODULE_PARM_DESC(debug, "Debug level (0=none,...,16=all)");
+
+static const struct e1000_info *e1000_info_tbl[] = {
+ [board_82571] = &e1000_82571_info,
+ [board_82572] = &e1000_82572_info,
+ [board_82573] = &e1000_82573_info,
+ [board_82574] = &e1000_82574_info,
+ [board_82583] = &e1000_82583_info,
+ [board_80003es2lan] = &e1000_es2_info,
+ [board_ich8lan] = &e1000_ich8_info,
+ [board_ich9lan] = &e1000_ich9_info,
+ [board_ich10lan] = &e1000_ich10_info,
+ [board_pchlan] = &e1000_pch_info,
+ [board_pch2lan] = &e1000_pch2_info,
+ [board_pch_lpt] = &e1000_pch_lpt_info,
+ [board_pch_spt] = &e1000_pch_spt_info,
+ [board_pch_cnp] = &e1000_pch_cnp_info,
+};
+
+struct e1000_reg_info {
+ u32 ofs;
+ char *name;
+};
+
+static const struct e1000_reg_info e1000_reg_info_tbl[] = {
+ /* General Registers */
+ {E1000_CTRL, "CTRL"},
+ {E1000_STATUS, "STATUS"},
+ {E1000_CTRL_EXT, "CTRL_EXT"},
+
+ /* Interrupt Registers */
+ {E1000_ICR, "ICR"},
+
+ /* Rx Registers */
+ {E1000_RCTL, "RCTL"},
+ {E1000_RDLEN(0), "RDLEN"},
+ {E1000_RDH(0), "RDH"},
+ {E1000_RDT(0), "RDT"},
+ {E1000_RDTR, "RDTR"},
+ {E1000_RXDCTL(0), "RXDCTL"},
+ {E1000_ERT, "ERT"},
+ {E1000_RDBAL(0), "RDBAL"},
+ {E1000_RDBAH(0), "RDBAH"},
+ {E1000_RDFH, "RDFH"},
+ {E1000_RDFT, "RDFT"},
+ {E1000_RDFHS, "RDFHS"},
+ {E1000_RDFTS, "RDFTS"},
+ {E1000_RDFPC, "RDFPC"},
+
+ /* Tx Registers */
+ {E1000_TCTL, "TCTL"},
+ {E1000_TDBAL(0), "TDBAL"},
+ {E1000_TDBAH(0), "TDBAH"},
+ {E1000_TDLEN(0), "TDLEN"},
+ {E1000_TDH(0), "TDH"},
+ {E1000_TDT(0), "TDT"},
+ {E1000_TIDV, "TIDV"},
+ {E1000_TXDCTL(0), "TXDCTL"},
+ {E1000_TADV, "TADV"},
+ {E1000_TARC(0), "TARC"},
+ {E1000_TDFH, "TDFH"},
+ {E1000_TDFT, "TDFT"},
+ {E1000_TDFHS, "TDFHS"},
+ {E1000_TDFTS, "TDFTS"},
+ {E1000_TDFPC, "TDFPC"},
+
+ /* List Terminator */
+ {0, NULL}
+};
+
+/**
+ * __ew32_prepare - prepare to write to MAC CSR register on certain parts
+ * @hw: pointer to the HW structure
+ *
+ * When updating the MAC CSR registers, the Manageability Engine (ME) could
+ * be accessing the registers at the same time. Normally, this is handled in
+ * h/w by an arbiter but on some parts there is a bug that acknowledges Host
+ * accesses later than it should which could result in the register to have
+ * an incorrect value. Workaround this by checking the FWSM register which
+ * has bit 24 set while ME is accessing MAC CSR registers, wait if it is set
+ * and try again a number of times.
+ **/
+s32 __ew32_prepare(struct e1000_hw *hw)
+{
+ s32 i = E1000_ICH_FWSM_PCIM2PCI_COUNT;
+
+ while ((er32(FWSM) & E1000_ICH_FWSM_PCIM2PCI) && --i)
+ udelay(50);
+
+ return i;
+}
+
+void __ew32(struct e1000_hw *hw, unsigned long reg, u32 val)
+{
+ if (hw->adapter->flags2 & FLAG2_PCIM2PCI_ARBITER_WA)
+ __ew32_prepare(hw);
+
+ writel(val, hw->hw_addr + reg);
+}
+
+/**
+ * e1000_regdump - register printout routine
+ * @hw: pointer to the HW structure
+ * @reginfo: pointer to the register info table
+ **/
+static void e1000_regdump(struct e1000_hw *hw, struct e1000_reg_info *reginfo)
+{
+ int n = 0;
+ char rname[16];
+ u32 regs[8];
+
+ switch (reginfo->ofs) {
+ case E1000_RXDCTL(0):
+ for (n = 0; n < 2; n++)
+ regs[n] = __er32(hw, E1000_RXDCTL(n));
+ break;
+ case E1000_TXDCTL(0):
+ for (n = 0; n < 2; n++)
+ regs[n] = __er32(hw, E1000_TXDCTL(n));
+ break;
+ case E1000_TARC(0):
+ for (n = 0; n < 2; n++)
+ regs[n] = __er32(hw, E1000_TARC(n));
+ break;
+ default:
+ pr_info("%-15s %08x\n",
+ reginfo->name, __er32(hw, reginfo->ofs));
+ return;
+ }
+
+ snprintf(rname, 16, "%s%s", reginfo->name, "[0-1]");
+ pr_info("%-15s %08x %08x\n", rname, regs[0], regs[1]);
+}
+
+static void e1000e_dump_ps_pages(struct e1000_adapter *adapter,
+ struct e1000_buffer *bi)
+{
+ int i;
+ struct e1000_ps_page *ps_page;
+
+ for (i = 0; i < adapter->rx_ps_pages; i++) {
+ ps_page = &bi->ps_pages[i];
+
+ if (ps_page->page) {
+ pr_info("packet dump for ps_page %d:\n", i);
+ print_hex_dump(KERN_INFO, "", DUMP_PREFIX_ADDRESS,
+ 16, 1, page_address(ps_page->page),
+ PAGE_SIZE, true);
+ }
+ }
+}
+
+/**
+ * e1000e_dump - Print registers, Tx-ring and Rx-ring
+ * @adapter: board private structure
+ **/
+static void e1000e_dump(struct e1000_adapter *adapter)
+{
+ struct net_device *netdev = adapter->netdev;
+ struct e1000_hw *hw = &adapter->hw;
+ struct e1000_reg_info *reginfo;
+ struct e1000_ring *tx_ring = adapter->tx_ring;
+ struct e1000_tx_desc *tx_desc;
+ struct my_u0 {
+ __le64 a;
+ __le64 b;
+ } *u0;
+ struct e1000_buffer *buffer_info;
+ struct e1000_ring *rx_ring = adapter->rx_ring;
+ union e1000_rx_desc_packet_split *rx_desc_ps;
+ union e1000_rx_desc_extended *rx_desc;
+ struct my_u1 {
+ __le64 a;
+ __le64 b;
+ __le64 c;
+ __le64 d;
+ } *u1;
+ u32 staterr;
+ int i = 0;
+
+ if (!netif_msg_hw(adapter))
+ return;
+
+ /* Print netdevice Info */
+ if (netdev) {
+ dev_info(pci_dev_to_dev(adapter->pdev), "Net device Info\n");
+ pr_info("Device Name state trans_start\n");
+ pr_info("%-15s %016lX %016lX\n", netdev->name,
+ netdev->state, dev_trans_start(netdev));
+ }
+
+ /* Print Registers */
+ dev_info(pci_dev_to_dev(adapter->pdev), "Register Dump\n");
+ pr_info(" Register Name Value\n");
+ for (reginfo = (struct e1000_reg_info *)e1000_reg_info_tbl;
+ reginfo->name; reginfo++) {
+ e1000_regdump(hw, reginfo);
+ }
+
+ /* Print Tx Ring Summary */
+ if (!netdev || !netif_running(netdev))
+ return;
+
+ dev_info(pci_dev_to_dev(adapter->pdev), "Tx Ring Summary\n");
+ pr_info("Queue [NTU] [NTC] [bi(ntc)->dma ] leng ntw timestamp\n");
+ buffer_info = &tx_ring->buffer_info[tx_ring->next_to_clean];
+ pr_info(" %5d %5X %5X %016llX %04X %3X %016llX\n",
+ 0, tx_ring->next_to_use, tx_ring->next_to_clean,
+ (unsigned long long)buffer_info->dma,
+ buffer_info->length,
+ buffer_info->next_to_watch,
+ (unsigned long long)buffer_info->time_stamp);
+
+ /* Print Tx Ring */
+ if (!netif_msg_tx_done(adapter))
+ goto rx_ring_summary;
+
+ dev_info(pci_dev_to_dev(adapter->pdev), "Tx Ring Dump\n");
+
+ /* Transmit Descriptor Formats - DEXT[29] is 0 (Legacy) or 1 (Extended)
+ *
+ * Legacy Transmit Descriptor
+ * +--------------------------------------------------------------+
+ * 0 | Buffer Address [63:0] (Reserved on Write Back) |
+ * +--------------------------------------------------------------+
+ * 8 | Special | CSS | Status | CMD | CSO | Length |
+ * +--------------------------------------------------------------+
+ * 63 48 47 36 35 32 31 24 23 16 15 0
+ *
+ * Extended Context Descriptor (DTYP=0x0) for TSO or checksum offload
+ * 63 48 47 40 39 32 31 16 15 8 7 0
+ * +----------------------------------------------------------------+
+ * 0 | TUCSE | TUCS0 | TUCSS | IPCSE | IPCS0 | IPCSS |
+ * +----------------------------------------------------------------+
+ * 8 | MSS | HDRLEN | RSV | STA | TUCMD | DTYP | PAYLEN |
+ * +----------------------------------------------------------------+
+ * 63 48 47 40 39 36 35 32 31 24 23 20 19 0
+ *
+ * Extended Data Descriptor (DTYP=0x1)
+ * +----------------------------------------------------------------+
+ * 0 | Buffer Address [63:0] |
+ * +----------------------------------------------------------------+
+ * 8 | VLAN tag | POPTS | Rsvd | Status | Command | DTYP | DTALEN |
+ * +----------------------------------------------------------------+
+ * 63 48 47 40 39 36 35 32 31 24 23 20 19 0
+ */
+ pr_info("Tl[desc] [address 63:0 ] [SpeCssSCmCsLen] [bi->dma ] leng ntw timestamp bi->skb <-- Legacy format\n");
+ pr_info("Tc[desc] [Ce CoCsIpceCoS] [MssHlRSCm0Plen] [bi->dma ] leng ntw timestamp bi->skb <-- Ext Context format\n");
+ pr_info("Td[desc] [address 63:0 ] [VlaPoRSCm1Dlen] [bi->dma ] leng ntw timestamp bi->skb <-- Ext Data format\n");
+ for (i = 0; tx_ring->desc && (i < tx_ring->count); i++) {
+ const char *next_desc;
+ tx_desc = E1000_TX_DESC(*tx_ring, i);
+ buffer_info = &tx_ring->buffer_info[i];
+ u0 = (struct my_u0 *)tx_desc;
+ if (i == tx_ring->next_to_use && i == tx_ring->next_to_clean)
+ next_desc = " NTC/U";
+ else if (i == tx_ring->next_to_use)
+ next_desc = " NTU";
+ else if (i == tx_ring->next_to_clean)
+ next_desc = " NTC";
+ else
+ next_desc = "";
+ pr_info("T%c[0x%03X] %016llX %016llX %016llX %04X %3X %016llX %p%s\n",
+ (!(le64_to_cpu(u0->b) & BIT(29)) ? 'l' :
+ ((le64_to_cpu(u0->b) & BIT(20)) ? 'd' : 'c')),
+ i,
+ (unsigned long long)le64_to_cpu(u0->a),
+ (unsigned long long)le64_to_cpu(u0->b),
+ (unsigned long long)buffer_info->dma,
+ buffer_info->length, buffer_info->next_to_watch,
+ (unsigned long long)buffer_info->time_stamp,
+ buffer_info->skb, next_desc);
+
+ if (netif_msg_pktdata(adapter) && buffer_info->skb)
+ print_hex_dump(KERN_INFO, "", DUMP_PREFIX_ADDRESS,
+ 16, 1, buffer_info->skb->data,
+ buffer_info->skb->len, true);
+ }
+
+ /* Print Rx Ring Summary */
+rx_ring_summary:
+ dev_info(pci_dev_to_dev(adapter->pdev), "Rx Ring Summary\n");
+ pr_info("Queue [NTU] [NTC]\n");
+ pr_info(" %5d %5X %5X\n",
+ 0, rx_ring->next_to_use, rx_ring->next_to_clean);
+
+ /* Print Rx Ring */
+ if (!netif_msg_rx_status(adapter))
+ return;
+
+ dev_info(pci_dev_to_dev(adapter->pdev), "Rx Ring Dump\n");
+ switch (adapter->rx_ps_pages) {
+ case 1:
+ case 2:
+ case 3:
+ /* [Extended] Packet Split Receive Descriptor Format
+ *
+ * +-----------------------------------------------------+
+ * 0 | Buffer Address 0 [63:0] |
+ * +-----------------------------------------------------+
+ * 8 | Buffer Address 1 [63:0] |
+ * +-----------------------------------------------------+
+ * 16 | Buffer Address 2 [63:0] |
+ * +-----------------------------------------------------+
+ * 24 | Buffer Address 3 [63:0] |
+ * +-----------------------------------------------------+
+ */
+ pr_info("R [desc] [buffer 0 63:0 ] [buffer 1 63:0 ] [buffer 2 63:0 ] [buffer 3 63:0 ] [bi->dma ] [bi->skb] <-- Ext Pkt Split format\n");
+ /* [Extended] Receive Descriptor (Write-Back) Format
+ *
+ * 63 48 47 32 31 13 12 8 7 4 3 0
+ * +------------------------------------------------------+
+ * 0 | Packet | IP | Rsvd | MRQ | Rsvd | MRQ RSS |
+ * | Checksum | Ident | | Queue | | Type |
+ * +------------------------------------------------------+
+ * 8 | VLAN Tag | Length | Extended Error | Extended Status |
+ * +------------------------------------------------------+
+ * 63 48 47 32 31 20 19 0
+ */
+ pr_info("RWB[desc] [ck ipid mrqhsh] [vl l0 ee es] [ l3 l2 l1 hs] [reserved ] ---------------- [bi->skb] <-- Ext Rx Write-Back format\n");
+ for (i = 0; i < rx_ring->count; i++) {
+ const char *next_desc;
+ buffer_info = &rx_ring->buffer_info[i];
+ rx_desc_ps = E1000_RX_DESC_PS(*rx_ring, i);
+ u1 = (struct my_u1 *)rx_desc_ps;
+ staterr =
+ le32_to_cpu(rx_desc_ps->wb.middle.status_error);
+
+ if (i == rx_ring->next_to_use)
+ next_desc = " NTU";
+ else if (i == rx_ring->next_to_clean)
+ next_desc = " NTC";
+ else
+ next_desc = "";
+
+ if (staterr & E1000_RXD_STAT_DD) {
+ /* Descriptor Done */
+ pr_info("%s[0x%03X] %016llX %016llX %016llX %016llX ---------------- %p%s\n",
+ "RWB", i,
+ (unsigned long long)le64_to_cpu(u1->a),
+ (unsigned long long)le64_to_cpu(u1->b),
+ (unsigned long long)le64_to_cpu(u1->c),
+ (unsigned long long)le64_to_cpu(u1->d),
+ buffer_info->skb, next_desc);
+ } else {
+ pr_info("%s[0x%03X] %016llX %016llX %016llX %016llX %016llX %p%s\n",
+ "R ", i,
+ (unsigned long long)le64_to_cpu(u1->a),
+ (unsigned long long)le64_to_cpu(u1->b),
+ (unsigned long long)le64_to_cpu(u1->c),
+ (unsigned long long)le64_to_cpu(u1->d),
+ (unsigned long long)buffer_info->dma,
+ buffer_info->skb, next_desc);
+
+ if (netif_msg_pktdata(adapter))
+ e1000e_dump_ps_pages(adapter,
+ buffer_info);
+ }
+ }
+ break;
+ default:
+ case 0:
+ /* Extended Receive Descriptor (Read) Format
+ *
+ * +-----------------------------------------------------+
+ * 0 | Buffer Address [63:0] |
+ * +-----------------------------------------------------+
+ * 8 | Reserved |
+ * +-----------------------------------------------------+
+ */
+ pr_info("R [desc] [buf addr 63:0 ] [reserved 63:0 ] [bi->dma ] [bi->skb] <-- Ext (Read) format\n");
+ /* Extended Receive Descriptor (Write-Back) Format
+ *
+ * 63 48 47 32 31 24 23 4 3 0
+ * +------------------------------------------------------+
+ * | RSS Hash | | | |
+ * 0 +-------------------+ Rsvd | Reserved | MRQ RSS |
+ * | Packet | IP | | | Type |
+ * | Checksum | Ident | | | |
+ * +------------------------------------------------------+
+ * 8 | VLAN Tag | Length | Extended Error | Extended Status |
+ * +------------------------------------------------------+
+ * 63 48 47 32 31 20 19 0
+ */
+ pr_info("RWB[desc] [cs ipid mrq] [vt ln xe xs] [bi->skb] <-- Ext (Write-Back) format\n");
+
+ for (i = 0; i < rx_ring->count; i++) {
+ const char *next_desc;
+
+ buffer_info = &rx_ring->buffer_info[i];
+ rx_desc = E1000_RX_DESC_EXT(*rx_ring, i);
+ u1 = (struct my_u1 *)rx_desc;
+ staterr = le32_to_cpu(rx_desc->wb.upper.status_error);
+
+ if (i == rx_ring->next_to_use)
+ next_desc = " NTU";
+ else if (i == rx_ring->next_to_clean)
+ next_desc = " NTC";
+ else
+ next_desc = "";
+
+ if (staterr & E1000_RXD_STAT_DD) {
+ /* Descriptor Done */
+ pr_info("%s[0x%03X] %016llX %016llX ---------------- %p%s\n",
+ "RWB", i,
+ (unsigned long long)le64_to_cpu(u1->a),
+ (unsigned long long)le64_to_cpu(u1->b),
+ buffer_info->skb, next_desc);
+ } else {
+ pr_info("%s[0x%03X] %016llX %016llX %016llX %p%s\n",
+ "R ", i,
+ (unsigned long long)le64_to_cpu(u1->a),
+ (unsigned long long)le64_to_cpu(u1->b),
+ (unsigned long long)buffer_info->dma,
+ buffer_info->skb, next_desc);
+
+ if (netif_msg_pktdata(adapter) &&
+ buffer_info->skb)
+ print_hex_dump(KERN_INFO, "",
+ DUMP_PREFIX_ADDRESS, 16,
+ 1,
+ buffer_info->skb->data,
+ adapter->rx_buffer_len,
+ true);
+ }
+ }
+ }
+}
+
+/**
+ * e1000_desc_unused - calculate if we have unused descriptors
+ * @ring: structure containing ring specific data
+ **/
+static int e1000_desc_unused(struct e1000_ring *ring)
+{
+ if (ring->next_to_clean > ring->next_to_use)
+ return ring->next_to_clean - ring->next_to_use - 1;
+
+ return ring->count + ring->next_to_clean - ring->next_to_use - 1;
+}
+
+#ifdef HAVE_HW_TIME_STAMP
+/**
+ * e1000e_systim_to_hwtstamp - convert system time value to hw time stamp
+ * @adapter: board private structure
+ * @hwtstamps: time stamp structure to update
+ * @systim: unsigned 64bit system time value.
+ *
+ * Convert the system time value stored in the RX/TXSTMP registers into a
+ * hwtstamp which can be used by the upper level time stamping functions.
+ *
+ * The 'systim_lock' spinlock is used to protect the consistency of the
+ * system time value. This is needed because reading the 64 bit time
+ * value involves reading two 32 bit registers. The first read latches the
+ * value.
+ **/
+static void e1000e_systim_to_hwtstamp(struct e1000_adapter *adapter,
+ struct skb_shared_hwtstamps *hwtstamps,
+ u64 systim)
+{
+ u64 ns;
+ unsigned long flags;
+
+ spin_lock_irqsave(&adapter->systim_lock, flags);
+ ns = timecounter_cyc2time(&adapter->tc, systim);
+ spin_unlock_irqrestore(&adapter->systim_lock, flags);
+
+ memset(hwtstamps, 0, sizeof(*hwtstamps));
+ hwtstamps->hwtstamp = ns_to_ktime(ns);
+}
+
+/**
+ * e1000e_rx_hwtstamp - utility function which checks for Rx time stamp
+ * @adapter: board private structure
+ * @status: descriptor extended error and status field
+ * @skb: particular skb to include time stamp
+ *
+ * If the time stamp is valid, convert it into the timecounter ns value
+ * and store that result into the shhwtstamps structure which is passed
+ * up the network stack.
+ **/
+static void e1000e_rx_hwtstamp(struct e1000_adapter *adapter, u32 status,
+ struct sk_buff *skb)
+{
+ struct e1000_hw *hw = &adapter->hw;
+ u64 rxstmp;
+
+ if (!(adapter->flags & FLAG_HAS_HW_TIMESTAMP) ||
+ !(status & E1000_RXDEXT_STATERR_TST) ||
+ !(er32(TSYNCRXCTL) & E1000_TSYNCRXCTL_VALID))
+ return;
+
+ /* The Rx time stamp registers contain the time stamp. No other
+ * received packet will be time stamped until the Rx time stamp
+ * registers are read. Because only one packet can be time stamped
+ * at a time, the register values must belong to this packet and
+ * therefore none of the other additional attributes need to be
+ * compared.
+ */
+ rxstmp = (u64)er32(RXSTMPL);
+ rxstmp |= (u64)er32(RXSTMPH) << 32;
+ e1000e_systim_to_hwtstamp(adapter, skb_hwtstamps(skb), rxstmp);
+
+ adapter->flags2 &= ~FLAG2_CHECK_RX_HWTSTAMP;
+}
+#endif /* HAVE_HW_TIME_STAMP */
+
+/**
+ * e1000_receive_skb - helper function to handle Rx indications
+ * @adapter: board private structure
+ * @netdev: network interface device starcture
+ * @skb: pointer to sk_buff to be indicated to stack
+ * @staterr: descriptor extended error and status field as written by hardware
+ * @vlan: descriptor vlan field as written by hardware (no le/be conversion)
+ **/
+static void e1000_receive_skb(struct e1000_adapter *adapter,
+ struct net_device *netdev, struct sk_buff *skb,
+ u32 staterr, __le16 vlan)
+{
+#ifndef CONFIG_E1000E_NAPI
+ int ret;
+#endif
+#ifndef HAVE_VLAN_RX_REGISTER
+ u16 tag = le16_to_cpu(vlan);
+#endif
+
+#ifdef HAVE_HW_TIME_STAMP
+ e1000e_rx_hwtstamp(adapter, staterr, skb);
+#endif
+
+ skb->protocol = eth_type_trans(skb, netdev);
+
+#ifdef CONFIG_E1000E_NAPI
+#ifdef HAVE_VLAN_RX_REGISTER
+#ifdef NETIF_F_HW_VLAN_TX
+ if (adapter->vlgrp && (staterr & E1000_RXD_STAT_VP))
+ vlan_gro_receive(&adapter->napi, adapter->vlgrp,
+ le16_to_cpu(vlan), skb);
+ else
+#endif /* NETIF_F_HW_VLAN_TX */
+ napi_gro_receive(&adapter->napi, skb);
+#else /* HAVE_VLAN_RX_REGISTER */
+ if (staterr & E1000_RXD_STAT_VP)
+ __vlan_hwaccel_put_tag(skb, htons(ETH_P_8021Q), tag);
+
+ napi_gro_receive(&adapter->napi, skb);
+#endif /* HAVE_VLAN_RX_REGISTER */
+#else /* CONFIG_E1000E_NAPI */
+#ifdef HAVE_VLAN_RX_REGISTER
+#ifdef NETIF_F_HW_VLAN_TX
+ if (adapter->vlgrp && (staterr & E1000_RXD_STAT_VP))
+ ret = vlan_hwaccel_rx(skb, adapter->vlgrp, le16_to_cpu(vlan));
+ else
+#endif
+ ret = netif_rx(skb);
+#else /* HAVE_VLAN_RX_REGISTER */
+ if (staterr & E1000_RXD_STAT_VP)
+ __vlan_hwaccel_put_tag(skb, htons(ETH_P_8021Q), tag);
+
+ ret = netif_rx(skb);
+#endif /* HAVE_VLAN_RX_REGISTER */
+ if (unlikely(ret == NET_RX_DROP))
+ adapter->rx_dropped_backlog++;
+#endif /* CONFIG_E1000E_NAPI */
+#ifndef NETIF_F_GRO
+
+ netdev->last_rx = jiffies;
+#endif
+}
+
+/**
+ * e1000_rx_checksum - Receive Checksum Offload
+ * @adapter: board private structure
+ * @status_err: receive descriptor status and error fields
+ * @skb: socket buffer with received data
+ **/
+static void e1000_rx_checksum(struct e1000_adapter *adapter, u32 status_err,
+ struct sk_buff *skb)
+{
+ u16 status = (u16)status_err;
+ u8 errors = (u8)(status_err >> 24);
+
+ skb_checksum_none_assert(skb);
+
+ /* Rx checksum disabled */
+#ifdef HAVE_NDO_SET_FEATURES
+ if (!(adapter->netdev->features & NETIF_F_RXCSUM))
+#else
+ if (!(adapter->flags & FLAG_RX_CSUM_ENABLED))
+#endif
+ return;
+
+ /* Ignore Checksum bit is set */
+ if (status & E1000_RXD_STAT_IXSM)
+ return;
+
+ /* TCP/UDP checksum error bit or IP checksum error bit is set */
+ if (errors & (E1000_RXD_ERR_TCPE | E1000_RXD_ERR_IPE)) {
+ /* let the stack verify checksum errors */
+ adapter->hw_csum_err++;
+ return;
+ }
+
+ /* TCP/UDP Checksum has not been calculated */
+ if (!(status & (E1000_RXD_STAT_TCPCS | E1000_RXD_STAT_UDPCS)))
+ return;
+
+ /* It must be a TCP or UDP packet with a valid checksum */
+ skb->ip_summed = CHECKSUM_UNNECESSARY;
+ adapter->hw_csum_good++;
+}
+
+static void e1000e_update_rdt_wa(struct e1000_ring *rx_ring, unsigned int i)
+{
+ struct e1000_adapter *adapter = rx_ring->adapter;
+ struct e1000_hw *hw = &adapter->hw;
+ s32 ret_val = __ew32_prepare(hw);
+
+ writel(i, rx_ring->tail);
+
+ if (unlikely(!ret_val && (i != readl(rx_ring->tail)))) {
+ u32 rctl = er32(RCTL);
+
+ ew32(RCTL, rctl & ~E1000_RCTL_EN);
+ e_err("ME firmware caused invalid RDT - resetting\n");
+ schedule_work(&adapter->reset_task);
+ }
+}
+
+static void e1000e_update_tdt_wa(struct e1000_ring *tx_ring, unsigned int i)
+{
+ struct e1000_adapter *adapter = tx_ring->adapter;
+ struct e1000_hw *hw = &adapter->hw;
+ s32 ret_val = __ew32_prepare(hw);
+
+ writel(i, tx_ring->tail);
+
+ if (unlikely(!ret_val && (i != readl(tx_ring->tail)))) {
+ u32 tctl = er32(TCTL);
+
+ ew32(TCTL, tctl & ~E1000_TCTL_EN);
+ e_err("ME firmware caused invalid TDT - resetting\n");
+ schedule_work(&adapter->reset_task);
+ }
+}
+
+/**
+ * e1000_alloc_rx_buffers - Replace used receive buffers
+ * @rx_ring: Rx descriptor ring
+ * @cleaned_count: number of buffers to allocate this pass
+ * @gfp: gfp mask to allocate skb
+ **/
+static void e1000_alloc_rx_buffers(struct e1000_ring *rx_ring,
+ int cleaned_count, gfp_t __maybe_unused gfp)
+{
+ struct e1000_adapter *adapter = rx_ring->adapter;
+ struct net_device *netdev = adapter->netdev;
+ struct pci_dev *pdev = adapter->pdev;
+ union e1000_rx_desc_extended *rx_desc;
+ struct e1000_buffer *buffer_info;
+ struct sk_buff *skb;
+ unsigned int i;
+ unsigned int bufsz = adapter->rx_buffer_len;
+
+ i = rx_ring->next_to_use;
+ buffer_info = &rx_ring->buffer_info[i];
+
+ while (cleaned_count--) {
+ skb = buffer_info->skb;
+ if (skb) {
+ skb_trim(skb, 0);
+ goto map_skb;
+ }
+
+ skb = __netdev_alloc_skb_ip_align(netdev, bufsz, gfp);
+ if (!skb) {
+ /* Better luck next round */
+ adapter->alloc_rx_buff_failed++;
+ break;
+ }
+
+ buffer_info->skb = skb;
+map_skb:
+ buffer_info->dma =
+ dma_map_single(pci_dev_to_dev(pdev), skb->data,
+ adapter->rx_buffer_len, DMA_FROM_DEVICE);
+ if (dma_mapping_error(pci_dev_to_dev(pdev), buffer_info->dma)) {
+ dev_err(pci_dev_to_dev(pdev), "Rx DMA map failed\n");
+ adapter->rx_dma_failed++;
+ break;
+ }
+
+ rx_desc = E1000_RX_DESC_EXT(*rx_ring, i);
+ rx_desc->read.buffer_addr = cpu_to_le64(buffer_info->dma);
+
+ if (unlikely(!(i & (E1000_RX_BUFFER_WRITE - 1)))) {
+ /* Force memory writes to complete before letting h/w
+ * know there are new descriptors to fetch. (Only
+ * applicable for weak-ordered memory model archs,
+ * such as IA-64).
+ */
+ wmb();
+ if (adapter->flags2 & FLAG2_PCIM2PCI_ARBITER_WA)
+ e1000e_update_rdt_wa(rx_ring, i);
+ else
+ writel(i, rx_ring->tail);
+ }
+ i++;
+ if (i == rx_ring->count)
+ i = 0;
+ buffer_info = &rx_ring->buffer_info[i];
+ }
+
+ rx_ring->next_to_use = i;
+}
+
+#ifdef DYNAMIC_LTR_SUPPORT
+
+static void e1000e_check_ltr_demote(struct e1000_adapter *adapter,
+ unsigned int current_rx_bytes)
+{
+ struct e1000_hw *hw = &adapter->hw;
+ u32 mpc;
+
+ mpc = er32(MPC);
+ adapter->c10_mpc_count += mpc;
+ adapter->c10_rx_bytes += current_rx_bytes;
+
+ /* If not already demoted and either a missed packet or
+ * have received bytes enough to have filled the RX_PBA
+ * then demote LTR
+ */
+ if (!adapter->c10_demote_ltr &&
+ (mpc || (current_rx_bytes > adapter->c10_pba_bytes))) {
+ adapter->c10_demote_ltr = true;
+ e1000_demote_ltr(hw, adapter->c10_demote_ltr, true);
+ }
+}
+#endif /* DYNAMIC_LTR_SUPPORT */
+/**
+ * e1000_alloc_rx_buffers_ps - Replace used receive buffers; packet split
+ * @rx_ring: Rx descriptor ring
+ * @cleaned_count: number of buffers to allocate this pass
+ * @gfp: gfp mask to allocate ps pages
+ **/
+static void e1000_alloc_rx_buffers_ps(struct e1000_ring *rx_ring,
+ int cleaned_count,
+ gfp_t __maybe_unused gfp)
+{
+ struct e1000_adapter *adapter = rx_ring->adapter;
+ struct net_device *netdev = adapter->netdev;
+ struct pci_dev *pdev = adapter->pdev;
+ union e1000_rx_desc_packet_split *rx_desc;
+ struct e1000_buffer *buffer_info;
+ struct e1000_ps_page *ps_page;
+ struct sk_buff *skb;
+ unsigned int i, j;
+
+ i = rx_ring->next_to_use;
+ buffer_info = &rx_ring->buffer_info[i];
+
+ while (cleaned_count--) {
+ rx_desc = E1000_RX_DESC_PS(*rx_ring, i);
+
+ for (j = 0; j < PS_PAGE_BUFFERS; j++) {
+ ps_page = &buffer_info->ps_pages[j];
+ if (j >= adapter->rx_ps_pages) {
+ /* all unused desc entries get hw null ptr */
+ rx_desc->read.buffer_addr[j + 1] =
+ ~cpu_to_le64(0);
+ continue;
+ }
+ if (!ps_page->page) {
+ ps_page->page = alloc_pages_node(adapter->node,
+ gfp, 0);
+ if (!ps_page->page) {
+ adapter->alloc_rx_buff_failed++;
+ goto no_buffers;
+ }
+ ps_page->dma = dma_map_page(pci_dev_to_dev(pdev),
+ ps_page->page,
+ 0, PAGE_SIZE,
+ DMA_FROM_DEVICE);
+ if (dma_mapping_error(pci_dev_to_dev(pdev),
+ ps_page->dma)) {
+ dev_err(pci_dev_to_dev(adapter->pdev),
+ "Rx DMA page map failed\n");
+ adapter->rx_dma_failed++;
+ goto no_buffers;
+ }
+ }
+ /* Refresh the desc even if buffer_addrs
+ * didn't change because each write-back
+ * erases this info.
+ */
+ rx_desc->read.buffer_addr[j + 1] =
+ cpu_to_le64(ps_page->dma);
+ }
+
+ skb = __netdev_alloc_skb_ip_align(netdev, adapter->rx_ps_bsize0,
+ gfp);
+
+ if (!skb) {
+ adapter->alloc_rx_buff_failed++;
+ break;
+ }
+
+ buffer_info->skb = skb;
+ buffer_info->dma =
+ dma_map_single(pci_dev_to_dev(pdev), skb->data,
+ adapter->rx_ps_bsize0, DMA_FROM_DEVICE);
+ if (dma_mapping_error(pci_dev_to_dev(pdev), buffer_info->dma)) {
+ dev_err(pci_dev_to_dev(pdev), "Rx DMA map failed\n");
+ adapter->rx_dma_failed++;
+ /* cleanup skb */
+ dev_kfree_skb_any(skb);
+ buffer_info->skb = NULL;
+ break;
+ }
+
+ rx_desc->read.buffer_addr[0] = cpu_to_le64(buffer_info->dma);
+
+ if (unlikely(!(i & (E1000_RX_BUFFER_WRITE - 1)))) {
+ /* Force memory writes to complete before letting h/w
+ * know there are new descriptors to fetch. (Only
+ * applicable for weak-ordered memory model archs,
+ * such as IA-64).
+ */
+ wmb();
+ if (adapter->flags2 & FLAG2_PCIM2PCI_ARBITER_WA)
+ e1000e_update_rdt_wa(rx_ring, i << 1);
+ else
+ writel(i << 1, rx_ring->tail);
+ }
+
+ i++;
+ if (i == rx_ring->count)
+ i = 0;
+ buffer_info = &rx_ring->buffer_info[i];
+ }
+
+no_buffers:
+ rx_ring->next_to_use = i;
+}
+
+#ifdef CONFIG_E1000E_NAPI
+/**
+ * e1000_alloc_jumbo_rx_buffers - Replace used jumbo receive buffers
+ * @rx_ring: Rx descriptor ring
+ * @cleaned_count: number of buffers to allocate this pass
+ * @gfp: gfp mask to allocate skb
+ **/
+
+static void e1000_alloc_jumbo_rx_buffers(struct e1000_ring *rx_ring,
+ int cleaned_count,
+ gfp_t __maybe_unused gfp)
+{
+ struct e1000_adapter *adapter = rx_ring->adapter;
+ struct net_device *netdev = adapter->netdev;
+ struct pci_dev *pdev = adapter->pdev;
+ union e1000_rx_desc_extended *rx_desc;
+ struct e1000_buffer *buffer_info;
+ struct sk_buff *skb;
+ unsigned int i;
+ unsigned int bufsz = 256 - 16; /* for skb_reserve */
+
+ i = rx_ring->next_to_use;
+ buffer_info = &rx_ring->buffer_info[i];
+
+ while (cleaned_count--) {
+ skb = buffer_info->skb;
+ if (skb) {
+ skb_trim(skb, 0);
+ goto check_page;
+ }
+
+ skb = __netdev_alloc_skb_ip_align(netdev, bufsz, gfp);
+ if (unlikely(!skb)) {
+ /* Better luck next round */
+ adapter->alloc_rx_buff_failed++;
+ break;
+ }
+
+ buffer_info->skb = skb;
+check_page:
+ /* allocate a new page if necessary */
+ if (!buffer_info->page) {
+ buffer_info->page = alloc_pages_node(adapter->node,
+ gfp, 0);
+ if (unlikely(!buffer_info->page)) {
+ adapter->alloc_rx_buff_failed++;
+ break;
+ }
+ }
+
+ if (!buffer_info->dma) {
+ buffer_info->dma = dma_map_page(pci_dev_to_dev(pdev),
+ buffer_info->page, 0,
+ PAGE_SIZE,
+ DMA_FROM_DEVICE);
+ if (dma_mapping_error(pci_dev_to_dev(pdev),
+ buffer_info->dma)) {
+ adapter->alloc_rx_buff_failed++;
+ break;
+ }
+ }
+
+ rx_desc = E1000_RX_DESC_EXT(*rx_ring, i);
+ rx_desc->read.buffer_addr = cpu_to_le64(buffer_info->dma);
+
+ if (unlikely(++i == rx_ring->count))
+ i = 0;
+ buffer_info = &rx_ring->buffer_info[i];
+ }
+
+ if (likely(rx_ring->next_to_use != i)) {
+ rx_ring->next_to_use = i;
+ if (unlikely(i-- == 0))
+ i = (rx_ring->count - 1);
+
+ /* Force memory writes to complete before letting h/w
+ * know there are new descriptors to fetch. (Only
+ * applicable for weak-ordered memory model archs,
+ * such as IA-64).
+ */
+ wmb();
+ if (adapter->flags2 & FLAG2_PCIM2PCI_ARBITER_WA)
+ e1000e_update_rdt_wa(rx_ring, i);
+ else
+ writel(i, rx_ring->tail);
+ }
+}
+#endif /* CONFIG_E1000E_NAPI */
+
+#ifdef NETIF_F_RXHASH
+static inline void e1000_rx_hash(struct net_device *netdev, __le32 rss,
+ struct sk_buff *skb)
+{
+ if (netdev->features & NETIF_F_RXHASH)
+ skb_set_hash(skb, le32_to_cpu(rss), PKT_HASH_TYPE_L3);
+}
+
+#endif
+/**
+ * e1000_clean_rx_irq - Send received data up the network stack
+ * @rx_ring: Rx descriptor ring
+ * @work_done: amount of napi work completed this call
+ * @work_to_do: max amount of work allowed for this call to do
+ *
+ * the return value indicates whether actual cleaning was done, there
+ * is no guarantee that everything was cleaned
+ **/
+#ifdef CONFIG_E1000E_NAPI
+static bool e1000_clean_rx_irq(struct e1000_ring *rx_ring, int *work_done,
+ int work_to_do)
+#else
+static bool e1000_clean_rx_irq(struct e1000_ring *rx_ring)
+#endif
+{
+ struct e1000_adapter *adapter = rx_ring->adapter;
+ struct net_device *netdev = adapter->netdev;
+ struct pci_dev *pdev = adapter->pdev;
+ struct e1000_hw *hw = &adapter->hw;
+ union e1000_rx_desc_extended *rx_desc, *next_rxd;
+ struct e1000_buffer *buffer_info, *next_buffer;
+ u32 length, staterr;
+ unsigned int i;
+ int cleaned_count = 0;
+ bool cleaned = false;
+ unsigned int total_rx_bytes = 0, total_rx_packets = 0;
+
+ i = rx_ring->next_to_clean;
+ rx_desc = E1000_RX_DESC_EXT(*rx_ring, i);
+ staterr = le32_to_cpu(rx_desc->wb.upper.status_error);
+ buffer_info = &rx_ring->buffer_info[i];
+
+ while (staterr & E1000_RXD_STAT_DD) {
+ struct sk_buff *skb;
+
+#ifdef CONFIG_E1000E_NAPI
+ if (*work_done >= work_to_do)
+ break;
+ (*work_done)++;
+#endif
+ dma_rmb(); /* read descriptor and rx_buffer_info after status DD */
+
+ skb = buffer_info->skb;
+ buffer_info->skb = NULL;
+
+ prefetch(skb->data - NET_IP_ALIGN);
+
+ i++;
+ if (i == rx_ring->count)
+ i = 0;
+ next_rxd = E1000_RX_DESC_EXT(*rx_ring, i);
+ prefetch(next_rxd);
+
+ next_buffer = &rx_ring->buffer_info[i];
+
+ cleaned = true;
+ cleaned_count++;
+ dma_unmap_single(pci_dev_to_dev(pdev), buffer_info->dma,
+ adapter->rx_buffer_len, DMA_FROM_DEVICE);
+ buffer_info->dma = 0;
+
+ length = le16_to_cpu(rx_desc->wb.upper.length);
+
+ /* !EOP means multiple descriptors were used to store a single
+ * packet, if that's the case we need to toss it. In fact, we
+ * need to toss every packet with the EOP bit clear and the
+ * next frame that _does_ have the EOP bit set, as it is by
+ * definition only a frame fragment
+ */
+ if (unlikely(!(staterr & E1000_RXD_STAT_EOP)))
+ adapter->flags2 |= FLAG2_IS_DISCARDING;
+
+ if (adapter->flags2 & FLAG2_IS_DISCARDING) {
+ /* All receives must fit into a single buffer */
+ e_dbg("Receive packet consumed multiple buffers\n");
+ /* recycle */
+ buffer_info->skb = skb;
+ if (staterr & E1000_RXD_STAT_EOP)
+ adapter->flags2 &= ~FLAG2_IS_DISCARDING;
+ goto next_desc;
+ }
+
+ if (unlikely((staterr & E1000_RXDEXT_ERR_FRAME_ERR_MASK) &&
+ !(netdev->features & NETIF_F_RXALL))) {
+ /* recycle */
+ buffer_info->skb = skb;
+ goto next_desc;
+ }
+
+ /* adjust length to remove Ethernet CRC */
+ if (!(adapter->flags2 & FLAG2_CRC_STRIPPING)) {
+ /* If configured to store CRC, don't subtract FCS,
+ * but keep the FCS bytes out of the total_rx_bytes
+ * counter
+ */
+ if (netdev->features & NETIF_F_RXFCS)
+ total_rx_bytes -= 4;
+ else
+ length -= 4;
+ }
+
+ total_rx_bytes += length;
+ total_rx_packets++;
+
+ /* code added for copybreak, this should improve
+ * performance for small packets with large amounts
+ * of reassembly being done in the stack
+ */
+ if (length < copybreak) {
+ struct sk_buff *new_skb =
+#ifdef CONFIG_E1000E_NAPI
+ napi_alloc_skb(&adapter->napi, length);
+#else
+ netdev_alloc_skb_ip_align(netdev, length);
+#endif
+ if (new_skb) {
+ skb_copy_to_linear_data_offset(new_skb,
+ -NET_IP_ALIGN,
+ (skb->data -
+ NET_IP_ALIGN),
+ (length +
+ NET_IP_ALIGN));
+ /* save the skb in buffer_info as good */
+ buffer_info->skb = skb;
+ skb = new_skb;
+ }
+ /* else just continue with the old one */
+ }
+ /* end copybreak code */
+ skb_put(skb, length);
+
+ /* Receive Checksum Offload */
+ e1000_rx_checksum(adapter, staterr, skb);
+
+#ifdef NETIF_F_RXHASH
+ e1000_rx_hash(netdev, rx_desc->wb.lower.hi_dword.rss, skb);
+
+#endif
+ e1000_receive_skb(adapter, netdev, skb, staterr,
+ rx_desc->wb.upper.vlan);
+
+next_desc:
+ rx_desc->wb.upper.status_error &= cpu_to_le32(~0xFF);
+
+ /* return some buffers to hardware, one at a time is too slow */
+ if (cleaned_count >= E1000_RX_BUFFER_WRITE) {
+ adapter->alloc_rx_buf(rx_ring, cleaned_count,
+ GFP_ATOMIC);
+ cleaned_count = 0;
+ }
+
+ /* use prefetched values */
+ rx_desc = next_rxd;
+ buffer_info = next_buffer;
+
+ staterr = le32_to_cpu(rx_desc->wb.upper.status_error);
+ }
+ rx_ring->next_to_clean = i;
+
+ cleaned_count = e1000_desc_unused(rx_ring);
+ if (cleaned_count)
+ adapter->alloc_rx_buf(rx_ring, cleaned_count, GFP_ATOMIC);
+
+#ifdef DYNAMIC_LTR_SUPPORT
+ e1000e_check_ltr_demote(adapter, total_rx_bytes);
+#endif /* DYNAMIC_LTR_SUPPORT */
+ adapter->total_rx_bytes += total_rx_bytes;
+ adapter->total_rx_packets += total_rx_packets;
+#ifdef HAVE_NDO_GET_STATS64
+#elif defined(HAVE_NETDEV_STATS_IN_NETDEV)
+ netdev->stats.rx_bytes += total_rx_bytes;
+ netdev->stats.rx_packets += total_rx_packets;
+#else
+ adapter->net_stats.rx_bytes += total_rx_bytes;
+ adapter->net_stats.rx_packets += total_rx_packets;
+#endif
+ return cleaned;
+}
+
+static void e1000_put_txbuf(struct e1000_ring *tx_ring,
+ struct e1000_buffer *buffer_info)
+{
+ struct e1000_adapter *adapter = tx_ring->adapter;
+
+ if (buffer_info->dma) {
+ if (buffer_info->mapped_as_page)
+ dma_unmap_page(pci_dev_to_dev(adapter->pdev),
+ buffer_info->dma, buffer_info->length,
+ DMA_TO_DEVICE);
+ else
+ dma_unmap_single(pci_dev_to_dev(adapter->pdev),
+ buffer_info->dma, buffer_info->length,
+ DMA_TO_DEVICE);
+ buffer_info->dma = 0;
+ }
+ if (buffer_info->skb) {
+ dev_kfree_skb_any(buffer_info->skb);
+ buffer_info->skb = NULL;
+ }
+ buffer_info->time_stamp = 0;
+}
+
+static void e1000_print_hw_hang(struct work_struct *work)
+{
+ struct e1000_adapter *adapter = container_of(work,
+ struct e1000_adapter,
+ print_hang_task);
+ struct net_device *netdev = adapter->netdev;
+ struct e1000_ring *tx_ring = adapter->tx_ring;
+ unsigned int i = tx_ring->next_to_clean;
+ unsigned int eop = tx_ring->buffer_info[i].next_to_watch;
+ struct e1000_tx_desc *eop_desc = E1000_TX_DESC(*tx_ring, eop);
+ struct e1000_hw *hw = &adapter->hw;
+ u16 phy_status, phy_1000t_status, phy_ext_status;
+ u16 pci_status;
+
+ if (test_bit(__E1000_DOWN, &adapter->state))
+ return;
+
+ if (!adapter->tx_hang_recheck && (adapter->flags2 & FLAG2_DMA_BURST)) {
+ /* May be block on write-back, flush and detect again
+ * flush pending descriptor writebacks to memory
+ */
+ ew32(TIDV, adapter->tx_int_delay | E1000_TIDV_FPD);
+ /* execute the writes immediately */
+ e1e_flush();
+ /* Due to rare timing issues, write to TIDV again to ensure
+ * the write is successful
+ */
+ ew32(TIDV, adapter->tx_int_delay | E1000_TIDV_FPD);
+ /* execute the writes immediately */
+ e1e_flush();
+ adapter->tx_hang_recheck = true;
+ return;
+ }
+ adapter->tx_hang_recheck = false;
+
+ if (er32(TDH(0)) == er32(TDT(0))) {
+ e_dbg("false hang detected, ignoring\n");
+ return;
+ }
+
+ /* Real hang detected */
+ netif_stop_queue(netdev);
+
+ e1e_rphy(hw, MII_BMSR, &phy_status);
+ e1e_rphy(hw, MII_STAT1000, &phy_1000t_status);
+ e1e_rphy(hw, MII_ESTATUS, &phy_ext_status);
+
+ pci_read_config_word(adapter->pdev, PCI_STATUS, &pci_status);
+
+ /* detected Hardware unit hang */
+ e_err("Detected Hardware Unit Hang:\n"
+ " TDH <%x>\n"
+ " TDT <%x>\n"
+ " next_to_use <%x>\n"
+ " next_to_clean <%x>\n"
+ "buffer_info[next_to_clean]:\n"
+ " time_stamp <%lx>\n"
+ " next_to_watch <%x>\n"
+ " jiffies <%lx>\n"
+ " next_to_watch.status <%x>\n"
+ "MAC Status <%x>\n"
+ "PHY Status <%x>\n"
+ "PHY 1000BASE-T Status <%x>\n"
+ "PHY Extended Status <%x>\n"
+ "PCI Status <%x>\n",
+ readl(tx_ring->head), readl(tx_ring->tail), tx_ring->next_to_use,
+ tx_ring->next_to_clean, tx_ring->buffer_info[eop].time_stamp,
+ eop, jiffies, eop_desc->upper.fields.status, er32(STATUS),
+ phy_status, phy_1000t_status, phy_ext_status, pci_status);
+
+ e1000e_dump(adapter);
+
+ /* Suggest workaround for known h/w issue */
+ if ((hw->mac.type == e1000_pchlan) && (er32(CTRL) & E1000_CTRL_TFCE))
+ e_err("Try turning off Tx pause (flow control) via ethtool\n");
+}
+
+#ifdef HAVE_HW_TIME_STAMP
+/**
+ * e1000e_tx_hwtstamp_work - check for Tx time stamp
+ * @work: pointer to work struct
+ *
+ * This work function polls the TSYNCTXCTL valid bit to determine when a
+ * timestamp has been taken for the current stored skb. The timestamp must
+ * be for this skb because only one such packet is allowed in the queue.
+ */
+static void e1000e_tx_hwtstamp_work(struct work_struct *work)
+{
+ struct e1000_adapter *adapter = container_of(work, struct e1000_adapter,
+ tx_hwtstamp_work);
+ struct e1000_hw *hw = &adapter->hw;
+
+ if (er32(TSYNCTXCTL) & E1000_TSYNCTXCTL_VALID) {
+ struct sk_buff *skb = adapter->tx_hwtstamp_skb;
+ struct skb_shared_hwtstamps shhwtstamps;
+ u64 txstmp;
+
+ txstmp = er32(TXSTMPL);
+ txstmp |= (u64)er32(TXSTMPH) << 32;
+
+ e1000e_systim_to_hwtstamp(adapter, &shhwtstamps, txstmp);
+
+ /* Clear the global tx_hwtstamp_skb pointer and force writes
+ * prior to notifying the stack of a Tx timestamp.
+ */
+ adapter->tx_hwtstamp_skb = NULL;
+ wmb(); /* force write prior to skb_tstamp_tx */
+
+ skb_tstamp_tx(skb, &shhwtstamps);
+ dev_kfree_skb_any(skb);
+ } else if (time_after(jiffies, adapter->tx_hwtstamp_start
+ + adapter->tx_timeout_factor * HZ)) {
+ dev_kfree_skb_any(adapter->tx_hwtstamp_skb);
+ adapter->tx_hwtstamp_skb = NULL;
+ adapter->tx_hwtstamp_timeouts++;
+ e_warn("clearing Tx timestamp hang\n");
+ } else {
+ /* reschedule to check later */
+ schedule_work(&adapter->tx_hwtstamp_work);
+ }
+}
+#endif /* HAVE_HW_TIME_STAMP */
+
+/**
+ * e1000_clean_tx_irq - Reclaim resources after transmit completes
+ * @tx_ring: Tx descriptor ring
+ *
+ * the return value indicates whether actual cleaning was done, there
+ * is no guarantee that everything was cleaned
+ **/
+static bool e1000_clean_tx_irq(struct e1000_ring *tx_ring)
+{
+ struct e1000_adapter *adapter = tx_ring->adapter;
+ struct net_device *netdev = adapter->netdev;
+ struct e1000_hw *hw = &adapter->hw;
+ struct e1000_tx_desc *tx_desc, *eop_desc;
+ struct e1000_buffer *buffer_info;
+ unsigned int i, eop;
+ unsigned int count = 0;
+ unsigned int total_tx_bytes = 0, total_tx_packets = 0;
+ unsigned int bytes_compl = 0, pkts_compl = 0;
+
+ i = tx_ring->next_to_clean;
+ eop = tx_ring->buffer_info[i].next_to_watch;
+ eop_desc = E1000_TX_DESC(*tx_ring, eop);
+
+ while ((eop_desc->upper.data & cpu_to_le32(E1000_TXD_STAT_DD)) &&
+ (count < tx_ring->count)) {
+ bool cleaned = false;
+
+ dma_rmb(); /* read buffer_info after eop_desc */
+ for (; !cleaned; count++) {
+ tx_desc = E1000_TX_DESC(*tx_ring, i);
+ buffer_info = &tx_ring->buffer_info[i];
+ cleaned = (i == eop);
+
+ if (cleaned) {
+ total_tx_packets += buffer_info->segs;
+ total_tx_bytes += buffer_info->bytecount;
+ if (buffer_info->skb) {
+ bytes_compl += buffer_info->skb->len;
+ pkts_compl++;
+ }
+ }
+
+ e1000_put_txbuf(tx_ring, buffer_info);
+ tx_desc->upper.data = 0;
+
+ i++;
+ if (i == tx_ring->count)
+ i = 0;
+ }
+
+ if (i == tx_ring->next_to_use)
+ break;
+ eop = tx_ring->buffer_info[i].next_to_watch;
+ eop_desc = E1000_TX_DESC(*tx_ring, eop);
+ }
+
+ tx_ring->next_to_clean = i;
+
+ netdev_completed_queue(netdev, pkts_compl, bytes_compl);
+
+#define TX_WAKE_THRESHOLD 32
+ if (count && netif_carrier_ok(netdev) &&
+ e1000_desc_unused(tx_ring) >= TX_WAKE_THRESHOLD) {
+ /* Make sure that anybody stopping the queue after this
+ * sees the new next_to_clean.
+ */
+ smp_mb();
+
+ if (netif_queue_stopped(netdev) &&
+ !(test_bit(__E1000_DOWN, &adapter->state))) {
+ netif_wake_queue(netdev);
+ ++adapter->restart_queue;
+ }
+ }
+
+ if (adapter->detect_tx_hung) {
+ /* Detect a transmit hang in hardware, this serializes the
+ * check with the clearing of time_stamp and movement of i
+ */
+ adapter->detect_tx_hung = false;
+ if (tx_ring->buffer_info[i].time_stamp &&
+ time_after(jiffies, tx_ring->buffer_info[i].time_stamp
+ + (adapter->tx_timeout_factor * HZ)) &&
+ !(er32(STATUS) & E1000_STATUS_TXOFF))
+ schedule_work(&adapter->print_hang_task);
+ else
+ adapter->tx_hang_recheck = false;
+ }
+ adapter->total_tx_bytes += total_tx_bytes;
+ adapter->total_tx_packets += total_tx_packets;
+#ifdef HAVE_NDO_GET_STATS64
+#elif defined(HAVE_NETDEV_STATS_IN_NETDEV)
+ netdev->stats.tx_bytes += total_tx_bytes;
+ netdev->stats.tx_packets += total_tx_packets;
+#else
+ adapter->net_stats.tx_bytes += total_tx_bytes;
+ adapter->net_stats.tx_packets += total_tx_packets;
+#endif
+ return count < tx_ring->count;
+}
+
+/**
+ * e1000_clean_rx_irq_ps - Send received data up the network stack; packet split
+ * @rx_ring: Rx descriptor ring
+ * @work_done: amount of napi work completed this call
+ * @work_to_do: max amount of work allowed for this call to do
+ *
+ * the return value indicates whether actual cleaning was done, there
+ * is no guarantee that everything was cleaned
+ **/
+#ifdef CONFIG_E1000E_NAPI
+static bool e1000_clean_rx_irq_ps(struct e1000_ring *rx_ring, int *work_done,
+ int work_to_do)
+#else
+static bool e1000_clean_rx_irq_ps(struct e1000_ring *rx_ring)
+#endif
+{
+ struct e1000_adapter *adapter = rx_ring->adapter;
+ struct e1000_hw *hw = &adapter->hw;
+ union e1000_rx_desc_packet_split *rx_desc, *next_rxd;
+ struct net_device *netdev = adapter->netdev;
+ struct pci_dev *pdev = adapter->pdev;
+ struct e1000_buffer *buffer_info, *next_buffer;
+ struct e1000_ps_page *ps_page;
+ struct sk_buff *skb;
+ unsigned int i, j;
+ u32 length, staterr;
+ int cleaned_count = 0;
+ bool cleaned = false;
+ unsigned int total_rx_bytes = 0, total_rx_packets = 0;
+
+ i = rx_ring->next_to_clean;
+ rx_desc = E1000_RX_DESC_PS(*rx_ring, i);
+ staterr = le32_to_cpu(rx_desc->wb.middle.status_error);
+ buffer_info = &rx_ring->buffer_info[i];
+
+ while (staterr & E1000_RXD_STAT_DD) {
+#ifdef CONFIG_E1000E_NAPI
+ if (*work_done >= work_to_do)
+ break;
+ (*work_done)++;
+#endif
+ skb = buffer_info->skb;
+ dma_rmb(); /* read descriptor and rx_buffer_info after status DD */
+
+ /* in the packet split case this is header only */
+ prefetch(skb->data - NET_IP_ALIGN);
+
+ i++;
+ if (i == rx_ring->count)
+ i = 0;
+ next_rxd = E1000_RX_DESC_PS(*rx_ring, i);
+ prefetch(next_rxd);
+
+ next_buffer = &rx_ring->buffer_info[i];
+
+ cleaned = true;
+ cleaned_count++;
+ dma_unmap_single(pci_dev_to_dev(pdev), buffer_info->dma,
+ adapter->rx_ps_bsize0, DMA_FROM_DEVICE);
+ buffer_info->dma = 0;
+
+ /* see !EOP comment in other Rx routine */
+ if (!(staterr & E1000_RXD_STAT_EOP))
+ adapter->flags2 |= FLAG2_IS_DISCARDING;
+
+ if (adapter->flags2 & FLAG2_IS_DISCARDING) {
+ e_dbg("Packet Split buffers didn't pick up the full packet\n");
+ dev_kfree_skb_irq(skb);
+ if (staterr & E1000_RXD_STAT_EOP)
+ adapter->flags2 &= ~FLAG2_IS_DISCARDING;
+ goto next_desc;
+ }
+
+ if (unlikely((staterr & E1000_RXDEXT_ERR_FRAME_ERR_MASK) &&
+ !(netdev->features & NETIF_F_RXALL))) {
+ dev_kfree_skb_irq(skb);
+ goto next_desc;
+ }
+
+ length = le16_to_cpu(rx_desc->wb.middle.length0);
+
+ if (!length) {
+ e_dbg("Last part of the packet spanning multiple descriptors\n");
+ dev_kfree_skb_irq(skb);
+ goto next_desc;
+ }
+
+ /* Good Receive */
+ skb_put(skb, length);
+
+#ifdef CONFIG_E1000E_NAPI
+ {
+ /* this looks ugly, but it seems compiler issues make
+ * it more efficient than reusing j
+ */
+ int l1 = le16_to_cpu(rx_desc->wb.upper.length[0]);
+
+ /* page alloc/put takes too long and effects small
+ * packet throughput, so unsplit small packets and
+ * save the alloc/put only valid in softirq (napi)
+ * context to call kmap_*
+ */
+ if (l1 && (l1 <= copybreak) &&
+ ((length + l1) <= adapter->rx_ps_bsize0)) {
+ u8 *vaddr;
+
+ ps_page = &buffer_info->ps_pages[0];
+
+ /* there is no documentation about how to call
+ * kmap_atomic, so we can't hold the mapping
+ * very long
+ */
+ dma_sync_single_for_cpu(pci_dev_to_dev(pdev),
+ ps_page->dma,
+ PAGE_SIZE,
+ DMA_FROM_DEVICE);
+ vaddr = kmap_atomic(ps_page->page);
+ memcpy(skb_tail_pointer(skb), vaddr, l1);
+ kunmap_atomic(vaddr);
+ dma_sync_single_for_device(pci_dev_to_dev(pdev),
+ ps_page->dma,
+ PAGE_SIZE,
+ DMA_FROM_DEVICE);
+
+ /* remove the CRC */
+ if (!(adapter->flags2 & FLAG2_CRC_STRIPPING)) {
+ if (!(netdev->features & NETIF_F_RXFCS))
+ l1 -= 4;
+ }
+
+ skb_put(skb, l1);
+ goto copydone;
+ } /* if */
+ }
+#endif
+
+ for (j = 0; j < PS_PAGE_BUFFERS; j++) {
+ length = le16_to_cpu(rx_desc->wb.upper.length[j]);
+ if (!length)
+ break;
+
+ ps_page = &buffer_info->ps_pages[j];
+ dma_unmap_page(pci_dev_to_dev(pdev), ps_page->dma,
+ PAGE_SIZE, DMA_FROM_DEVICE);
+ ps_page->dma = 0;
+ skb_fill_page_desc(skb, j, ps_page->page, 0, length);
+ ps_page->page = NULL;
+ skb->len += length;
+ skb->data_len += length;
+ skb->truesize += PAGE_SIZE;
+ }
+
+ /* strip the ethernet crc, problem is we're using pages now so
+ * this whole operation can get a little cpu intensive
+ */
+ if (!(adapter->flags2 & FLAG2_CRC_STRIPPING)) {
+ if (!(netdev->features & NETIF_F_RXFCS))
+ pskb_trim(skb, skb->len - 4);
+ }
+#ifdef CONFIG_E1000E_NAPI
+copydone:
+#endif
+ total_rx_bytes += skb->len;
+ total_rx_packets++;
+
+ e1000_rx_checksum(adapter, staterr, skb);
+
+#ifdef NETIF_F_RXHASH
+ e1000_rx_hash(netdev, rx_desc->wb.lower.hi_dword.rss, skb);
+
+#endif
+ if (rx_desc->wb.upper.header_status &
+ cpu_to_le16(E1000_RXDPS_HDRSTAT_HDRSP))
+ adapter->rx_hdr_split++;
+
+ e1000_receive_skb(adapter, netdev, skb, staterr,
+ rx_desc->wb.middle.vlan);
+
+next_desc:
+ rx_desc->wb.middle.status_error &= cpu_to_le32(~0xFF);
+ buffer_info->skb = NULL;
+
+ /* return some buffers to hardware, one at a time is too slow */
+ if (cleaned_count >= E1000_RX_BUFFER_WRITE) {
+ adapter->alloc_rx_buf(rx_ring, cleaned_count,
+ GFP_ATOMIC);
+ cleaned_count = 0;
+ }
+
+ /* use prefetched values */
+ rx_desc = next_rxd;
+ buffer_info = next_buffer;
+
+ staterr = le32_to_cpu(rx_desc->wb.middle.status_error);
+ }
+ rx_ring->next_to_clean = i;
+
+ cleaned_count = e1000_desc_unused(rx_ring);
+ if (cleaned_count)
+ adapter->alloc_rx_buf(rx_ring, cleaned_count, GFP_ATOMIC);
+
+#ifdef DYNAMIC_LTR_SUPPORT
+ e1000e_check_ltr_demote(adapter, total_rx_bytes);
+#endif /* DYNAMIC_LTR_SUPPORT */
+ adapter->total_rx_bytes += total_rx_bytes;
+ adapter->total_rx_packets += total_rx_packets;
+#ifdef HAVE_NDO_GET_STATS64
+#elif defined(HAVE_NETDEV_STATS_IN_NETDEV)
+ netdev->stats.rx_bytes += total_rx_bytes;
+ netdev->stats.rx_packets += total_rx_packets;
+#else
+ adapter->net_stats.rx_bytes += total_rx_bytes;
+ adapter->net_stats.rx_packets += total_rx_packets;
+#endif
+ return cleaned;
+}
+
+#ifdef CONFIG_E1000E_NAPI
+/**
+ * e1000_consume_page - helper function
+ * @bi: buffer to consume
+ * @skb: pointer to sk_buff to be indicated to stack
+ * @length: of the data DMAed in data buffer
+ **/
+static void e1000_consume_page(struct e1000_buffer *bi, struct sk_buff *skb,
+ u16 length)
+{
+ bi->page = NULL;
+ skb->len += length;
+ skb->data_len += length;
+ skb->truesize += PAGE_SIZE;
+}
+
+/**
+ * e1000_clean_jumbo_rx_irq - Send received data up the network stack; legacy
+ * @rx_ring: Rx descriptor ring
+ * @work_done: amount of napi work completed this call
+ * @work_to_do: max amount of work allowed for this call to do
+ *
+ * the return value indicates whether actual cleaning was done, there
+ * is no guarantee that everything was cleaned
+ **/
+static bool e1000_clean_jumbo_rx_irq(struct e1000_ring *rx_ring, int *work_done,
+ int work_to_do)
+{
+ struct e1000_adapter *adapter = rx_ring->adapter;
+ struct net_device *netdev = adapter->netdev;
+ struct pci_dev *pdev = adapter->pdev;
+ union e1000_rx_desc_extended *rx_desc, *next_rxd;
+ struct e1000_buffer *buffer_info, *next_buffer;
+ u32 length, staterr;
+ unsigned int i;
+ int cleaned_count = 0;
+ bool cleaned = false;
+ unsigned int total_rx_bytes = 0, total_rx_packets = 0;
+ struct skb_shared_info *shinfo;
+
+ i = rx_ring->next_to_clean;
+ rx_desc = E1000_RX_DESC_EXT(*rx_ring, i);
+ staterr = le32_to_cpu(rx_desc->wb.upper.status_error);
+ buffer_info = &rx_ring->buffer_info[i];
+
+ while (staterr & E1000_RXD_STAT_DD) {
+ struct sk_buff *skb;
+
+ if (*work_done >= work_to_do)
+ break;
+ (*work_done)++;
+ dma_rmb(); /* read descriptor and rx_buffer_info after status DD */
+
+ skb = buffer_info->skb;
+ buffer_info->skb = NULL;
+
+ ++i;
+ if (i == rx_ring->count)
+ i = 0;
+ next_rxd = E1000_RX_DESC_EXT(*rx_ring, i);
+ prefetch(next_rxd);
+
+ next_buffer = &rx_ring->buffer_info[i];
+
+ cleaned = true;
+ cleaned_count++;
+ dma_unmap_page(pci_dev_to_dev(pdev), buffer_info->dma,
+ PAGE_SIZE, DMA_FROM_DEVICE);
+ buffer_info->dma = 0;
+
+ length = le16_to_cpu(rx_desc->wb.upper.length);
+
+ /* errors is only valid for DD + EOP descriptors */
+ if (unlikely((staterr & E1000_RXD_STAT_EOP) &&
+ ((staterr & E1000_RXDEXT_ERR_FRAME_ERR_MASK) &&
+ !(netdev->features & NETIF_F_RXALL)))) {
+ /* recycle both page and skb */
+ buffer_info->skb = skb;
+ /* an error means any chain goes out the window too */
+ if (rx_ring->rx_skb_top)
+ dev_kfree_skb_irq(rx_ring->rx_skb_top);
+ rx_ring->rx_skb_top = NULL;
+ goto next_desc;
+ }
+#define rxtop (rx_ring->rx_skb_top)
+ if (!(staterr & E1000_RXD_STAT_EOP)) {
+ /* this descriptor is only the beginning (or middle) */
+ if (!rxtop) {
+ /* this is the beginning of a chain */
+ rxtop = skb;
+ skb_fill_page_desc(rxtop, 0, buffer_info->page,
+ 0, length);
+ } else {
+ /* this is the middle of a chain */
+ shinfo = skb_shinfo(rxtop);
+ skb_fill_page_desc(rxtop, shinfo->nr_frags,
+ buffer_info->page, 0,
+ length);
+ /* re-use the skb, only consumed the page */
+ buffer_info->skb = skb;
+ }
+ e1000_consume_page(buffer_info, rxtop, length);
+ goto next_desc;
+ } else {
+ if (rxtop) {
+ /* end of the chain */
+ shinfo = skb_shinfo(rxtop);
+ skb_fill_page_desc(rxtop, shinfo->nr_frags,
+ buffer_info->page, 0,
+ length);
+ /* re-use the current skb, we only consumed the
+ * page
+ */
+ buffer_info->skb = skb;
+ skb = rxtop;
+ rxtop = NULL;
+ e1000_consume_page(buffer_info, skb, length);
+ } else {
+ /* no chain, got EOP, this buf is the packet
+ * copybreak to save the put_page/alloc_page
+ */
+ if (length <= copybreak &&
+ skb_tailroom(skb) >= length) {
+ u8 *vaddr;
+ vaddr = kmap_atomic(buffer_info->page);
+ memcpy(skb_tail_pointer(skb), vaddr,
+ length);
+ kunmap_atomic(vaddr);
+ /* re-use the page, so don't erase
+ * buffer_info->page
+ */
+ skb_put(skb, length);
+ } else {
+ skb_fill_page_desc(skb, 0,
+ buffer_info->page, 0,
+ length);
+ e1000_consume_page(buffer_info, skb,
+ length);
+ }
+ }
+ }
+
+ /* Receive Checksum Offload */
+ e1000_rx_checksum(adapter, staterr, skb);
+
+#ifdef NETIF_F_RXHASH
+ e1000_rx_hash(netdev, rx_desc->wb.lower.hi_dword.rss, skb);
+
+#endif
+ /* probably a little skewed due to removing CRC */
+ total_rx_bytes += skb->len;
+ total_rx_packets++;
+
+ /* eth type trans needs skb->data to point to something */
+ if (!pskb_may_pull(skb, ETH_HLEN)) {
+ e_err("pskb_may_pull failed.\n");
+ dev_kfree_skb_irq(skb);
+ goto next_desc;
+ }
+
+ e1000_receive_skb(adapter, netdev, skb, staterr,
+ rx_desc->wb.upper.vlan);
+
+next_desc:
+ rx_desc->wb.upper.status_error &= cpu_to_le32(~0xFF);
+
+ /* return some buffers to hardware, one at a time is too slow */
+ if (unlikely(cleaned_count >= E1000_RX_BUFFER_WRITE)) {
+ adapter->alloc_rx_buf(rx_ring, cleaned_count,
+ GFP_ATOMIC);
+ cleaned_count = 0;
+ }
+
+ /* use prefetched values */
+ rx_desc = next_rxd;
+ buffer_info = next_buffer;
+
+ staterr = le32_to_cpu(rx_desc->wb.upper.status_error);
+ }
+ rx_ring->next_to_clean = i;
+
+ cleaned_count = e1000_desc_unused(rx_ring);
+ if (cleaned_count)
+ adapter->alloc_rx_buf(rx_ring, cleaned_count, GFP_ATOMIC);
+
+#ifdef DYNAMIC_LTR_SUPPORT
+ e1000e_check_ltr_demote(adapter, total_rx_bytes);
+#endif /* DYNAMIC_LTR_SUPPORT */
+ adapter->total_rx_bytes += total_rx_bytes;
+ adapter->total_rx_packets += total_rx_packets;
+#ifdef HAVE_NDO_GET_STATS64
+#elif defined(HAVE_NETDEV_STATS_IN_NETDEV)
+ netdev->stats.rx_bytes += total_rx_bytes;
+ netdev->stats.rx_packets += total_rx_packets;
+#else
+ adapter->net_stats.rx_bytes += total_rx_bytes;
+ adapter->net_stats.rx_packets += total_rx_packets;
+#endif
+ return cleaned;
+}
+
+#endif /* CONFIG_E1000E_NAPI */
+/**
+ * e1000_clean_rx_ring - Free Rx Buffers per Queue
+ * @rx_ring: ring to clean
+ **/
+static void e1000_clean_rx_ring(struct e1000_ring *rx_ring)
+{
+ struct e1000_adapter *adapter = rx_ring->adapter;
+ struct e1000_buffer *buffer_info;
+ struct e1000_ps_page *ps_page;
+ struct pci_dev *pdev = adapter->pdev;
+ unsigned int i, j;
+
+ /* Free all the Rx ring sk_buffs */
+ for (i = 0; i < rx_ring->count; i++) {
+ buffer_info = &rx_ring->buffer_info[i];
+ if (buffer_info->dma) {
+ if (adapter->clean_rx == e1000_clean_rx_irq)
+ dma_unmap_single(pci_dev_to_dev(pdev),
+ buffer_info->dma,
+ adapter->rx_buffer_len,
+ DMA_FROM_DEVICE);
+#ifdef CONFIG_E1000E_NAPI
+ else if (adapter->clean_rx == e1000_clean_jumbo_rx_irq)
+ dma_unmap_page(pci_dev_to_dev(pdev),
+ buffer_info->dma, PAGE_SIZE,
+ DMA_FROM_DEVICE);
+#endif
+ else if (adapter->clean_rx == e1000_clean_rx_irq_ps)
+ dma_unmap_single(pci_dev_to_dev(pdev),
+ buffer_info->dma,
+ adapter->rx_ps_bsize0,
+ DMA_FROM_DEVICE);
+ buffer_info->dma = 0;
+ }
+
+ if (buffer_info->page) {
+ put_page(buffer_info->page);
+ buffer_info->page = NULL;
+ }
+
+ if (buffer_info->skb) {
+ dev_kfree_skb(buffer_info->skb);
+ buffer_info->skb = NULL;
+ }
+
+ for (j = 0; j < PS_PAGE_BUFFERS; j++) {
+ ps_page = &buffer_info->ps_pages[j];
+ if (!ps_page->page)
+ break;
+ dma_unmap_page(pci_dev_to_dev(pdev), ps_page->dma,
+ PAGE_SIZE, DMA_FROM_DEVICE);
+ ps_page->dma = 0;
+ put_page(ps_page->page);
+ ps_page->page = NULL;
+ }
+ }
+
+#ifdef CONFIG_E1000E_NAPI
+ /* there also may be some cached data from a chained receive */
+ if (rx_ring->rx_skb_top) {
+ dev_kfree_skb(rx_ring->rx_skb_top);
+ rx_ring->rx_skb_top = NULL;
+ }
+#endif
+
+ /* Zero out the descriptor ring */
+ memset(rx_ring->desc, 0, rx_ring->size);
+
+ rx_ring->next_to_clean = 0;
+ rx_ring->next_to_use = 0;
+ adapter->flags2 &= ~FLAG2_IS_DISCARDING;
+
+ writel(0, rx_ring->head);
+ if (adapter->flags2 & FLAG2_PCIM2PCI_ARBITER_WA)
+ e1000e_update_rdt_wa(rx_ring, 0);
+ else
+ writel(0, rx_ring->tail);
+}
+
+static void e1000e_downshift_workaround(struct work_struct *work)
+{
+ struct e1000_adapter *adapter = container_of(work,
+ struct e1000_adapter,
+ downshift_task);
+
+ if (test_bit(__E1000_DOWN, &adapter->state))
+ return;
+
+ e1000e_gig_downshift_workaround_ich8lan(&adapter->hw);
+}
+
+#ifndef CONFIG_E1000E_NAPI
+static void e1000_set_itr(struct e1000_adapter *adapter);
+#endif
+/**
+ * e1000_intr_msi - Interrupt Handler
+ * @irq: interrupt number
+ * @data: pointer to a network interface device structure
+ **/
+static irqreturn_t e1000_intr_msi(int __always_unused irq, void *data)
+{
+ struct net_device *netdev = data;
+ struct e1000_adapter *adapter = netdev_priv(netdev);
+ struct e1000_hw *hw = &adapter->hw;
+#ifndef CONFIG_E1000E_NAPI
+ int i;
+#endif
+ u32 icr = er32(ICR);
+
+ /* read ICR disables interrupts using IAM */
+ if (icr & E1000_ICR_LSC) {
+ hw->mac.get_link_status = true;
+ /* ICH8 workaround-- Call gig speed drop workaround on cable
+ * disconnect (LSC) before accessing any PHY registers
+ */
+ if ((adapter->flags & FLAG_LSC_GIG_SPEED_DROP) &&
+ (!(er32(STATUS) & E1000_STATUS_LU)))
+ schedule_work(&adapter->downshift_task);
+
+ /* 80003ES2LAN workaround-- For packet buffer work-around on
+ * link down event; disable receives here in the ISR and reset
+ * adapter in watchdog
+ */
+ if (netif_carrier_ok(netdev) &&
+ adapter->flags & FLAG_RX_NEEDS_RESTART) {
+ /* disable receives */
+ u32 rctl = er32(RCTL);
+
+ ew32(RCTL, rctl & ~E1000_RCTL_EN);
+ adapter->flags |= FLAG_RESTART_NOW;
+ }
+ /* guard against interrupt when we're going down */
+ if (!test_bit(__E1000_DOWN, &adapter->state))
+ mod_timer(&adapter->watchdog_timer, jiffies + 1);
+ }
+
+ /* Reset on uncorrectable ECC error */
+ if ((icr & E1000_ICR_ECCER) && (hw->mac.type >= e1000_pch_lpt)) {
+ u32 pbeccsts = er32(PBECCSTS);
+
+ adapter->corr_errors +=
+ pbeccsts & E1000_PBECCSTS_CORR_ERR_CNT_MASK;
+ adapter->uncorr_errors +=
+ (pbeccsts & E1000_PBECCSTS_UNCORR_ERR_CNT_MASK) >>
+ E1000_PBECCSTS_UNCORR_ERR_CNT_SHIFT;
+
+ /* Do the reset outside of interrupt context */
+ schedule_work(&adapter->reset_task);
+
+ /* return immediately since reset is imminent */
+ return IRQ_HANDLED;
+ }
+#ifdef CONFIG_E1000E_NAPI
+ if (napi_schedule_prep(&adapter->napi)) {
+ adapter->total_tx_bytes = 0;
+ adapter->total_tx_packets = 0;
+ adapter->total_rx_bytes = 0;
+ adapter->total_rx_packets = 0;
+ __napi_schedule(&adapter->napi);
+ }
+#else
+ adapter->total_tx_bytes = 0;
+ adapter->total_rx_bytes = 0;
+ adapter->total_tx_packets = 0;
+ adapter->total_rx_packets = 0;
+
+ for (i = 0; i < E1000_MAX_INTR; i++) {
+ int rx_cleaned = adapter->clean_rx(adapter->rx_ring);
+ int tx_cleaned_complete = e1000_clean_tx_irq(adapter->tx_ring);
+ if (!rx_cleaned && tx_cleaned_complete)
+ break;
+ }
+
+ if (likely(adapter->itr_setting & 3))
+ e1000_set_itr(adapter);
+#endif /* CONFIG_E1000E_NAPI */
+
+ return IRQ_HANDLED;
+}
+
+/**
+ * e1000_intr - Interrupt Handler
+ * @irq: interrupt number
+ * @data: pointer to a network interface device structure
+ **/
+static irqreturn_t e1000_intr(int __always_unused irq, void *data)
+{
+ struct net_device *netdev = data;
+ struct e1000_adapter *adapter = netdev_priv(netdev);
+ struct e1000_hw *hw = &adapter->hw;
+#ifndef CONFIG_E1000E_NAPI
+ int i;
+ int rx_cleaned, tx_cleaned_complete;
+#endif
+ u32 rctl, icr = er32(ICR);
+
+ if (!icr || test_bit(__E1000_DOWN, &adapter->state))
+ return IRQ_NONE; /* Not our interrupt */
+
+#ifdef CONFIG_E1000E_NAPI
+ /* IMS will not auto-mask if INT_ASSERTED is not set, and if it is
+ * not set, then the adapter didn't send an interrupt
+ */
+ if (!(icr & E1000_ICR_INT_ASSERTED))
+ return IRQ_NONE;
+
+#endif /* CONFIG_E1000E_NAPI */
+ /* Interrupt Auto-Mask...upon reading ICR,
+ * interrupts are masked. No need for the
+ * IMC write
+ */
+
+ if (icr & E1000_ICR_LSC) {
+ hw->mac.get_link_status = true;
+ /* ICH8 workaround-- Call gig speed drop workaround on cable
+ * disconnect (LSC) before accessing any PHY registers
+ */
+ if ((adapter->flags & FLAG_LSC_GIG_SPEED_DROP) &&
+ (!(er32(STATUS) & E1000_STATUS_LU)))
+ schedule_work(&adapter->downshift_task);
+
+ /* 80003ES2LAN workaround--
+ * For packet buffer work-around on link down event;
+ * disable receives here in the ISR and
+ * reset adapter in watchdog
+ */
+ if (netif_carrier_ok(netdev) &&
+ (adapter->flags & FLAG_RX_NEEDS_RESTART)) {
+ /* disable receives */
+ rctl = er32(RCTL);
+ ew32(RCTL, rctl & ~E1000_RCTL_EN);
+ adapter->flags |= FLAG_RESTART_NOW;
+ }
+ /* guard against interrupt when we're going down */
+ if (!test_bit(__E1000_DOWN, &adapter->state))
+ mod_timer(&adapter->watchdog_timer, jiffies + 1);
+ }
+
+ /* Reset on uncorrectable ECC error */
+ if ((icr & E1000_ICR_ECCER) && (hw->mac.type >= e1000_pch_lpt)) {
+ u32 pbeccsts = er32(PBECCSTS);
+
+ adapter->corr_errors +=
+ pbeccsts & E1000_PBECCSTS_CORR_ERR_CNT_MASK;
+ adapter->uncorr_errors +=
+ (pbeccsts & E1000_PBECCSTS_UNCORR_ERR_CNT_MASK) >>
+ E1000_PBECCSTS_UNCORR_ERR_CNT_SHIFT;
+
+ /* Do the reset outside of interrupt context */
+ schedule_work(&adapter->reset_task);
+
+ /* return immediately since reset is imminent */
+ return IRQ_HANDLED;
+ }
+#ifdef CONFIG_E1000E_NAPI
+ if (napi_schedule_prep(&adapter->napi)) {
+ adapter->total_tx_bytes = 0;
+ adapter->total_tx_packets = 0;
+ adapter->total_rx_bytes = 0;
+ adapter->total_rx_packets = 0;
+ __napi_schedule(&adapter->napi);
+ }
+#else
+ adapter->total_tx_bytes = 0;
+ adapter->total_rx_bytes = 0;
+ adapter->total_tx_packets = 0;
+ adapter->total_rx_packets = 0;
+
+ for (i = 0; i < E1000_MAX_INTR; i++) {
+ rx_cleaned = adapter->clean_rx(adapter->rx_ring);
+ tx_cleaned_complete = e1000_clean_tx_irq(adapter->tx_ring);
+ if (!rx_cleaned && tx_cleaned_complete)
+ break;
+ }
+
+ if (likely(adapter->itr_setting & 3))
+ e1000_set_itr(adapter);
+#endif /* CONFIG_E1000E_NAPI */
+
+ return IRQ_HANDLED;
+}
+
+static irqreturn_t e1000_msix_other(int __always_unused irq, void *data)
+{
+ struct net_device *netdev = data;
+ struct e1000_adapter *adapter = netdev_priv(netdev);
+ struct e1000_hw *hw = &adapter->hw;
+
+ hw->mac.get_link_status = true;
+
+ /* guard against interrupt when we're going down */
+ if (!test_bit(__E1000_DOWN, &adapter->state)) {
+ mod_timer(&adapter->watchdog_timer, jiffies + 1);
+ ew32(IMS, E1000_IMS_OTHER);
+ }
+
+ return IRQ_HANDLED;
+}
+
+static irqreturn_t e1000_intr_msix_tx(int __always_unused irq, void *data)
+{
+ struct net_device *netdev = data;
+ struct e1000_adapter *adapter = netdev_priv(netdev);
+ struct e1000_hw *hw = &adapter->hw;
+ struct e1000_ring *tx_ring = adapter->tx_ring;
+
+ adapter->total_tx_bytes = 0;
+ adapter->total_tx_packets = 0;
+
+ if (!e1000_clean_tx_irq(tx_ring))
+ /* Ring was not completely cleaned, so fire another interrupt */
+ ew32(ICS, tx_ring->ims_val);
+
+ if (!test_bit(__E1000_DOWN, &adapter->state))
+ ew32(IMS, adapter->tx_ring->ims_val);
+
+ return IRQ_HANDLED;
+}
+
+static irqreturn_t e1000_intr_msix_rx(int __always_unused irq, void *data)
+{
+ struct net_device *netdev = data;
+ struct e1000_adapter *adapter = netdev_priv(netdev);
+ struct e1000_ring *rx_ring = adapter->rx_ring;
+#ifndef CONFIG_E1000E_NAPI
+ int i;
+ struct e1000_hw *hw = &adapter->hw;
+#endif
+
+ /* Write the ITR value calculated at the end of the
+ * previous interrupt.
+ */
+ if (rx_ring->set_itr) {
+ u32 itr = rx_ring->itr_val ?
+ 1000000000 / (rx_ring->itr_val * 256) : 0;
+
+ writel(itr, rx_ring->itr_register);
+ rx_ring->set_itr = 0;
+ }
+#ifdef CONFIG_E1000E_NAPI
+ if (napi_schedule_prep(&adapter->napi)) {
+ adapter->total_rx_bytes = 0;
+ adapter->total_rx_packets = 0;
+ __napi_schedule(&adapter->napi);
+ }
+#else
+ adapter->total_rx_bytes = 0;
+ adapter->total_rx_packets = 0;
+
+ for (i = 0; i < E1000_MAX_INTR; i++) {
+ int rx_cleaned = adapter->clean_rx(rx_ring);
+ if (!rx_cleaned)
+ goto out;
+ }
+ /* If we got here, the ring was not completely cleaned,
+ * so fire another interrupt.
+ */
+ ew32(ICS, rx_ring->ims_val);
+
+out:
+#endif /* CONFIG_E1000E_NAPI */
+ return IRQ_HANDLED;
+}
+
+/**
+ * e1000_configure_msix - Configure MSI-X hardware
+ * @adapter: board private structure
+ *
+ * e1000_configure_msix sets up the hardware to properly
+ * generate MSI-X interrupts.
+ **/
+static void e1000_configure_msix(struct e1000_adapter *adapter)
+{
+ struct e1000_hw *hw = &adapter->hw;
+ struct e1000_ring *rx_ring = adapter->rx_ring;
+ struct e1000_ring *tx_ring = adapter->tx_ring;
+ int vector = 0;
+ u32 ctrl_ext, ivar = 0;
+
+ adapter->eiac_mask = 0;
+
+ /* Workaround issue with spurious interrupts on 82574 in MSI-X mode */
+ if (hw->mac.type == e1000_82574) {
+ u32 rfctl = er32(RFCTL);
+
+ rfctl |= E1000_RFCTL_ACK_DIS;
+ ew32(RFCTL, rfctl);
+ }
+
+ /* Configure Rx vector */
+ rx_ring->ims_val = E1000_IMS_RXQ0;
+ adapter->eiac_mask |= rx_ring->ims_val;
+ if (rx_ring->itr_val)
+ writel(1000000000 / (rx_ring->itr_val * 256),
+ rx_ring->itr_register);
+ else
+ writel(1, rx_ring->itr_register);
+ ivar = E1000_IVAR_INT_ALLOC_VALID | vector;
+
+ /* Configure Tx vector */
+ tx_ring->ims_val = E1000_IMS_TXQ0;
+ vector++;
+ if (tx_ring->itr_val)
+ writel(1000000000 / (tx_ring->itr_val * 256),
+ tx_ring->itr_register);
+ else
+ writel(1, tx_ring->itr_register);
+ adapter->eiac_mask |= tx_ring->ims_val;
+ ivar |= ((E1000_IVAR_INT_ALLOC_VALID | vector) << 8);
+
+ /* set vector for Other Causes, e.g. link changes */
+ vector++;
+ ivar |= ((E1000_IVAR_INT_ALLOC_VALID | vector) << 16);
+ if (rx_ring->itr_val)
+ writel(1000000000 / (rx_ring->itr_val * 256),
+ hw->hw_addr + E1000_EITR_82574(vector));
+ else
+ writel(1, hw->hw_addr + E1000_EITR_82574(vector));
+ adapter->eiac_mask |= E1000_IMS_OTHER;
+
+ /* Cause Tx interrupts on every write back */
+ ivar |= BIT(31);
+
+ ew32(IVAR, ivar);
+
+ /* enable MSI-X PBA support */
+ ctrl_ext = er32(CTRL_EXT) & ~E1000_CTRL_EXT_IAME;
+ ctrl_ext |= E1000_CTRL_EXT_PBA_CLR | E1000_CTRL_EXT_EIAME;
+ ew32(CTRL_EXT, ctrl_ext);
+ e1e_flush();
+}
+
+void e1000e_reset_interrupt_capability(struct e1000_adapter *adapter)
+{
+ if (adapter->msix_entries) {
+ pci_disable_msix(adapter->pdev);
+ kfree(adapter->msix_entries);
+ adapter->msix_entries = NULL;
+ } else if (adapter->flags & FLAG_MSI_ENABLED) {
+ pci_disable_msi(adapter->pdev);
+ adapter->flags &= ~FLAG_MSI_ENABLED;
+ }
+}
+
+/**
+ * e1000e_set_interrupt_capability - set MSI or MSI-X if supported
+ * @adapter: board private structure
+ *
+ * Attempt to configure interrupts using the best available
+ * capabilities of the hardware and kernel.
+ **/
+void e1000e_set_interrupt_capability(struct e1000_adapter *adapter)
+{
+ int err;
+ int i;
+
+ switch (adapter->int_mode) {
+ case E1000E_INT_MODE_MSIX:
+ if (adapter->flags & FLAG_HAS_MSIX) {
+ adapter->num_vectors = 3; /* RxQ0, TxQ0 and other */
+ adapter->msix_entries =
+ kzalloc_node(adapter->num_vectors *
+ sizeof(struct msix_entry), GFP_KERNEL,
+ adapter->node);
+ if (adapter->msix_entries) {
+ struct e1000_adapter *a = adapter;
+
+ for (i = 0; i < adapter->num_vectors; i++)
+ adapter->msix_entries[i].entry = i;
+
+ err = pci_enable_msix_range(a->pdev,
+ a->msix_entries,
+ a->num_vectors,
+ a->num_vectors);
+ if (err > 0)
+ return;
+ }
+ /* MSI-X failed, so fall through and try MSI */
+ e_err("Failed to initialize MSI-X interrupts. Falling back to MSI interrupts.\n");
+ e1000e_reset_interrupt_capability(adapter);
+ }
+ adapter->int_mode = E1000E_INT_MODE_MSI;
+ /* Fall through */
+ case E1000E_INT_MODE_MSI:
+ if (!pci_enable_msi(adapter->pdev)) {
+ adapter->flags |= FLAG_MSI_ENABLED;
+ } else {
+ adapter->int_mode = E1000E_INT_MODE_LEGACY;
+ e_err("Failed to initialize MSI interrupts. Falling back to legacy interrupts.\n");
+ }
+ /* Fall through */
+ case E1000E_INT_MODE_LEGACY:
+ /* Don't do anything; this is the system default */
+ break;
+ }
+
+ /* store the number of vectors being used */
+ adapter->num_vectors = 1;
+}
+
+/**
+ * e1000_request_msix - Initialize MSI-X interrupts
+ * @adapter: board private structure
+ *
+ * e1000_request_msix allocates MSI-X vectors and requests interrupts from the
+ * kernel.
+ **/
+static int e1000_request_msix(struct e1000_adapter *adapter)
+{
+ struct net_device *netdev = adapter->netdev;
+ int err = 0, vector = 0;
+
+ snprintf(adapter->rx_ring->name,
+ sizeof(adapter->rx_ring->name), "%s-rx-0", netdev->name);
+ err = request_irq(adapter->msix_entries[vector].vector,
+ e1000_intr_msix_rx, 0, adapter->rx_ring->name,
+ netdev);
+ if (err)
+ return err;
+ adapter->rx_ring->itr_register = adapter->hw.hw_addr +
+ E1000_EITR_82574(vector);
+ adapter->rx_ring->itr_val = adapter->itr;
+ vector++;
+
+ snprintf(adapter->tx_ring->name,
+ sizeof(adapter->tx_ring->name), "%s-tx-0", netdev->name);
+ err = request_irq(adapter->msix_entries[vector].vector,
+ e1000_intr_msix_tx, 0, adapter->tx_ring->name,
+ netdev);
+ if (err)
+ return err;
+ adapter->tx_ring->itr_register = adapter->hw.hw_addr +
+ E1000_EITR_82574(vector);
+ adapter->tx_ring->itr_val = adapter->itr;
+ vector++;
+
+ err = request_irq(adapter->msix_entries[vector].vector,
+ e1000_msix_other, 0, netdev->name, netdev);
+ if (err)
+ return err;
+
+ e1000_configure_msix(adapter);
+
+ return 0;
+}
+
+/**
+ * e1000_request_irq - initialize interrupts
+ * @adapter: board private structure
+ *
+ * Attempts to configure interrupts using the best available
+ * capabilities of the hardware and kernel.
+ **/
+static int e1000_request_irq(struct e1000_adapter *adapter)
+{
+ struct net_device *netdev = adapter->netdev;
+ int err;
+
+ if (adapter->msix_entries) {
+ err = e1000_request_msix(adapter);
+ if (!err)
+ return err;
+ /* fall back to MSI */
+ e1000e_reset_interrupt_capability(adapter);
+ adapter->int_mode = E1000E_INT_MODE_MSI;
+ e1000e_set_interrupt_capability(adapter);
+ }
+ if (adapter->flags & FLAG_MSI_ENABLED) {
+ err = request_irq(adapter->pdev->irq, e1000_intr_msi, 0,
+ netdev->name, netdev);
+ if (!err)
+ return err;
+
+ /* fall back to legacy interrupt */
+ e1000e_reset_interrupt_capability(adapter);
+ adapter->int_mode = E1000E_INT_MODE_LEGACY;
+ }
+
+ err = request_irq(adapter->pdev->irq, e1000_intr, IRQF_SHARED,
+ netdev->name, netdev);
+ if (err)
+ e_err("Unable to allocate interrupt, Error: %d\n", err);
+
+ return err;
+}
+
+static void e1000_free_irq(struct e1000_adapter *adapter)
+{
+ struct net_device *netdev = adapter->netdev;
+
+ if (adapter->msix_entries) {
+ int vector = 0;
+
+ free_irq(adapter->msix_entries[vector].vector, netdev);
+ vector++;
+
+ free_irq(adapter->msix_entries[vector].vector, netdev);
+ vector++;
+
+ /* Other Causes interrupt vector */
+ free_irq(adapter->msix_entries[vector].vector, netdev);
+ return;
+ }
+
+ free_irq(adapter->pdev->irq, netdev);
+}
+
+/**
+ * e1000_irq_disable - Mask off interrupt generation on the NIC
+ * @adapter: board private structure
+ **/
+static void e1000_irq_disable(struct e1000_adapter *adapter)
+{
+ struct e1000_hw *hw = &adapter->hw;
+
+ ew32(IMC, ~0);
+ if (adapter->msix_entries)
+ ew32(EIAC_82574, 0);
+ e1e_flush();
+
+ if (adapter->msix_entries) {
+ int i;
+
+ for (i = 0; i < adapter->num_vectors; i++)
+ synchronize_irq(adapter->msix_entries[i].vector);
+ } else {
+ synchronize_irq(adapter->pdev->irq);
+ }
+}
+
+/**
+ * e1000_irq_enable - Enable default interrupt generation settings
+ * @adapter: board private structure
+ **/
+static void e1000_irq_enable(struct e1000_adapter *adapter)
+{
+ struct e1000_hw *hw = &adapter->hw;
+
+ if (adapter->msix_entries) {
+ ew32(EIAC_82574, adapter->eiac_mask & E1000_EIAC_MASK_82574);
+ ew32(IMS, adapter->eiac_mask | E1000_IMS_LSC);
+ } else if (hw->mac.type >= e1000_pch_lpt) {
+ ew32(IMS, IMS_ENABLE_MASK | E1000_IMS_ECCER);
+ } else {
+ ew32(IMS, IMS_ENABLE_MASK);
+ }
+ e1e_flush();
+}
+
+/**
+ * e1000e_get_hw_control - get control of the h/w from f/w
+ * @adapter: address of board private structure
+ *
+ * e1000e_get_hw_control sets {CTRL_EXT|SWSM}:DRV_LOAD bit.
+ * For ASF and Pass Through versions of f/w this means that
+ * the driver is loaded. For AMT version (only with 82573)
+ * of the f/w this means that the network i/f is open.
+ **/
+void e1000e_get_hw_control(struct e1000_adapter *adapter)
+{
+ struct e1000_hw *hw = &adapter->hw;
+ u32 ctrl_ext;
+ u32 swsm;
+
+ /* Let firmware know the driver has taken over */
+ if (adapter->flags & FLAG_HAS_SWSM_ON_LOAD) {
+ swsm = er32(SWSM);
+ ew32(SWSM, swsm | E1000_SWSM_DRV_LOAD);
+ } else if (adapter->flags & FLAG_HAS_CTRLEXT_ON_LOAD) {
+ ctrl_ext = er32(CTRL_EXT);
+ ew32(CTRL_EXT, ctrl_ext | E1000_CTRL_EXT_DRV_LOAD);
+ }
+}
+
+/**
+ * e1000e_release_hw_control - release control of the h/w to f/w
+ * @adapter: address of board private structure
+ *
+ * e1000e_release_hw_control resets {CTRL_EXT|SWSM}:DRV_LOAD bit.
+ * For ASF and Pass Through versions of f/w this means that the
+ * driver is no longer loaded. For AMT version (only with 82573) i
+ * of the f/w this means that the network i/f is closed.
+ *
+ **/
+void e1000e_release_hw_control(struct e1000_adapter *adapter)
+{
+ struct e1000_hw *hw = &adapter->hw;
+ u32 ctrl_ext;
+ u32 swsm;
+
+ /* Let firmware taken over control of h/w */
+ if (adapter->flags & FLAG_HAS_SWSM_ON_LOAD) {
+ swsm = er32(SWSM);
+ ew32(SWSM, swsm & ~E1000_SWSM_DRV_LOAD);
+ } else if (adapter->flags & FLAG_HAS_CTRLEXT_ON_LOAD) {
+ ctrl_ext = er32(CTRL_EXT);
+ ew32(CTRL_EXT, ctrl_ext & ~E1000_CTRL_EXT_DRV_LOAD);
+ }
+}
+
+/**
+ * e1000_alloc_ring_dma - allocate memory for a ring structure
+ * @adapter: board private structure
+ * @ring: structure containing ring specific data
+ **/
+static int e1000_alloc_ring_dma(struct e1000_adapter *adapter,
+ struct e1000_ring *ring)
+{
+ struct pci_dev *pdev = adapter->pdev;
+ int old_node = dev_to_node(pci_dev_to_dev(pdev));
+ int retval = 0;
+
+ /* must use set_dev_node here to work around the lack of a
+ * dma_alloc_coherent_node function call
+ */
+ if (adapter->node != -1)
+ set_dev_node(pci_dev_to_dev(pdev), adapter->node);
+ ring->desc =
+ dma_alloc_coherent(pci_dev_to_dev(pdev), ring->size, &ring->dma,
+ GFP_KERNEL);
+ if (!ring->desc)
+ retval = -ENOMEM;
+
+ if (adapter->node != -1)
+ set_dev_node(pci_dev_to_dev(pdev), old_node);
+ return retval;
+}
+
+/**
+ * e1000e_setup_tx_resources - allocate Tx resources (Descriptors)
+ * @tx_ring: Tx descriptor ring
+ *
+ * Return 0 on success, negative on failure
+ **/
+int e1000e_setup_tx_resources(struct e1000_ring *tx_ring)
+{
+ struct e1000_adapter *adapter = tx_ring->adapter;
+ int err = -ENOMEM, size;
+
+ size = sizeof(struct e1000_buffer) * tx_ring->count;
+ tx_ring->buffer_info = vzalloc_node(size, adapter->node);
+ if (!tx_ring->buffer_info)
+ goto err;
+
+ /* round up to nearest 4K */
+ tx_ring->size = tx_ring->count * sizeof(struct e1000_tx_desc);
+ tx_ring->size = ALIGN(tx_ring->size, 4096);
+
+ err = e1000_alloc_ring_dma(adapter, tx_ring);
+ if (err)
+ goto err;
+
+ tx_ring->next_to_use = 0;
+ tx_ring->next_to_clean = 0;
+
+ return 0;
+err:
+ vfree(tx_ring->buffer_info);
+ e_err("Unable to allocate memory for the transmit descriptor ring\n");
+ return err;
+}
+
+/**
+ * e1000e_setup_rx_resources - allocate Rx resources (Descriptors)
+ * @rx_ring: Rx descriptor ring
+ *
+ * Returns 0 on success, negative on failure
+ **/
+int e1000e_setup_rx_resources(struct e1000_ring *rx_ring)
+{
+ struct e1000_adapter *adapter = rx_ring->adapter;
+ struct e1000_buffer *buffer_info;
+ int i, size, desc_len, err = -ENOMEM;
+
+ size = sizeof(struct e1000_buffer) * rx_ring->count;
+ rx_ring->buffer_info = vzalloc_node(size, adapter->node);
+ if (!rx_ring->buffer_info)
+ goto err;
+
+ for (i = 0; i < rx_ring->count; i++) {
+ buffer_info = &rx_ring->buffer_info[i];
+ buffer_info->ps_pages = kzalloc_node(PS_PAGE_BUFFERS *
+ sizeof(struct
+ e1000_ps_page),
+ GFP_KERNEL, adapter->node);
+ if (!buffer_info->ps_pages)
+ goto err_pages;
+ }
+
+ desc_len = sizeof(union e1000_rx_desc_packet_split);
+
+ /* Round up to nearest 4K */
+ rx_ring->size = rx_ring->count * desc_len;
+ rx_ring->size = ALIGN(rx_ring->size, 4096);
+
+ err = e1000_alloc_ring_dma(adapter, rx_ring);
+ if (err)
+ goto err_pages;
+
+ rx_ring->next_to_clean = 0;
+ rx_ring->next_to_use = 0;
+ rx_ring->rx_skb_top = NULL;
+
+ return 0;
+
+err_pages:
+ for (i = 0; i < rx_ring->count; i++) {
+ buffer_info = &rx_ring->buffer_info[i];
+ kfree(buffer_info->ps_pages);
+ }
+err:
+ vfree(rx_ring->buffer_info);
+ e_err("Unable to allocate memory for the receive descriptor ring\n");
+ return err;
+}
+
+/**
+ * e1000_clean_tx_ring - Free Tx Buffers
+ * @tx_ring: Tx descriptor ring
+ **/
+static void e1000_clean_tx_ring(struct e1000_ring *tx_ring)
+{
+ struct e1000_adapter *adapter = tx_ring->adapter;
+ struct e1000_buffer *buffer_info;
+ unsigned long size;
+ unsigned int i;
+
+ for (i = 0; i < tx_ring->count; i++) {
+ buffer_info = &tx_ring->buffer_info[i];
+ e1000_put_txbuf(tx_ring, buffer_info);
+ }
+
+ netdev_reset_queue(adapter->netdev);
+ size = sizeof(struct e1000_buffer) * tx_ring->count;
+ memset(tx_ring->buffer_info, 0, size);
+
+ memset(tx_ring->desc, 0, tx_ring->size);
+
+ tx_ring->next_to_use = 0;
+ tx_ring->next_to_clean = 0;
+
+ writel(0, tx_ring->head);
+ if (adapter->flags2 & FLAG2_PCIM2PCI_ARBITER_WA)
+ e1000e_update_tdt_wa(tx_ring, 0);
+ else
+ writel(0, tx_ring->tail);
+}
+
+/**
+ * e1000e_free_tx_resources - Free Tx Resources per Queue
+ * @tx_ring: Tx descriptor ring
+ *
+ * Free all transmit software resources
+ **/
+void e1000e_free_tx_resources(struct e1000_ring *tx_ring)
+{
+ struct e1000_adapter *adapter = tx_ring->adapter;
+ struct pci_dev *pdev = adapter->pdev;
+
+ e1000_clean_tx_ring(tx_ring);
+
+ vfree(tx_ring->buffer_info);
+ tx_ring->buffer_info = NULL;
+
+ dma_free_coherent(pci_dev_to_dev(pdev), tx_ring->size, tx_ring->desc,
+ tx_ring->dma);
+ tx_ring->desc = NULL;
+}
+
+/**
+ * e1000e_free_rx_resources - Free Rx Resources
+ * @rx_ring: Rx descriptor ring
+ *
+ * Free all receive software resources
+ **/
+void e1000e_free_rx_resources(struct e1000_ring *rx_ring)
+{
+ struct e1000_adapter *adapter = rx_ring->adapter;
+ struct pci_dev *pdev = adapter->pdev;
+ int i;
+
+ e1000_clean_rx_ring(rx_ring);
+
+ for (i = 0; i < rx_ring->count; i++)
+ kfree(rx_ring->buffer_info[i].ps_pages);
+
+ vfree(rx_ring->buffer_info);
+ rx_ring->buffer_info = NULL;
+
+ dma_free_coherent(pci_dev_to_dev(pdev), rx_ring->size, rx_ring->desc,
+ rx_ring->dma);
+ rx_ring->desc = NULL;
+}
+
+/**
+ * e1000_update_itr - update the dynamic ITR value based on statistics
+ * @itr_setting: current adapter->itr
+ * @packets: the number of packets during this measurement interval
+ * @bytes: the number of bytes during this measurement interval
+ *
+ * Stores a new ITR value based on packets and byte
+ * counts during the last interrupt. The advantage of per interrupt
+ * computation is faster updates and more accurate ITR for the current
+ * traffic pattern. Constants in this function were computed
+ * based on theoretical maximum wire speed and thresholds were set based
+ * on testing data as well as attempting to minimize response time
+ * while increasing bulk throughput. This functionality is controlled
+ * by the InterruptThrottleRate module parameter.
+ **/
+static unsigned int e1000_update_itr(u16 itr_setting, int packets, int bytes)
+{
+ unsigned int retval = itr_setting;
+
+ if (packets == 0)
+ return itr_setting;
+
+ switch (itr_setting) {
+ case lowest_latency:
+ /* handle TSO and jumbo frames */
+ if (bytes / packets > 8000)
+ retval = bulk_latency;
+ else if ((packets < 5) && (bytes > 512))
+ retval = low_latency;
+ break;
+ case low_latency: /* 50 usec aka 20000 ints/s */
+ if (bytes > 10000) {
+ /* this if handles the TSO accounting */
+ if (bytes / packets > 8000)
+ retval = bulk_latency;
+ else if ((packets < 10) || ((bytes / packets) > 1200))
+ retval = bulk_latency;
+ else if ((packets > 35))
+ retval = lowest_latency;
+ } else if (bytes / packets > 2000) {
+ retval = bulk_latency;
+ } else if (packets <= 2 && bytes < 512) {
+ retval = lowest_latency;
+ }
+ break;
+ case bulk_latency: /* 250 usec aka 4000 ints/s */
+ if (bytes > 25000) {
+ if (packets > 35)
+ retval = low_latency;
+ } else if (bytes < 6000) {
+ retval = low_latency;
+ }
+ break;
+ }
+
+ return retval;
+}
+
+static void e1000_set_itr(struct e1000_adapter *adapter)
+{
+ u16 current_itr;
+ u32 new_itr = adapter->itr;
+
+ /* for non-gigabit speeds, just fix the interrupt rate at 4000 */
+ if (adapter->link_speed != SPEED_1000) {
+ current_itr = 0;
+ new_itr = 4000;
+ goto set_itr_now;
+ }
+
+ if (adapter->flags2 & FLAG2_DISABLE_AIM) {
+ new_itr = 0;
+ goto set_itr_now;
+ }
+
+ adapter->tx_itr = e1000_update_itr(adapter->tx_itr,
+ adapter->total_tx_packets,
+ adapter->total_tx_bytes);
+ /* conservative mode (itr 3) eliminates the lowest_latency setting */
+ if (adapter->itr_setting == 3 && adapter->tx_itr == lowest_latency)
+ adapter->tx_itr = low_latency;
+
+ adapter->rx_itr = e1000_update_itr(adapter->rx_itr,
+ adapter->total_rx_packets,
+ adapter->total_rx_bytes);
+ /* conservative mode (itr 3) eliminates the lowest_latency setting */
+ if (adapter->itr_setting == 3 && adapter->rx_itr == lowest_latency)
+ adapter->rx_itr = low_latency;
+
+ current_itr = max(adapter->rx_itr, adapter->tx_itr);
+
+ /* counts and packets in update_itr are dependent on these numbers */
+ switch (current_itr) {
+ case lowest_latency:
+ new_itr = 70000;
+ break;
+ case low_latency:
+ new_itr = 20000; /* aka hwitr = ~200 */
+ break;
+ case bulk_latency:
+ new_itr = 4000;
+ break;
+ default:
+ break;
+ }
+
+set_itr_now:
+ if (new_itr != adapter->itr) {
+ /* this attempts to bias the interrupt rate towards Bulk
+ * by adding intermediate steps when interrupt rate is
+ * increasing
+ */
+ new_itr = new_itr > adapter->itr ?
+ min(adapter->itr + (new_itr >> 2), new_itr) : new_itr;
+ adapter->itr = new_itr;
+ adapter->rx_ring->itr_val = new_itr;
+ if (adapter->msix_entries)
+ adapter->rx_ring->set_itr = 1;
+ else
+ e1000e_write_itr(adapter, new_itr);
+ }
+}
+
+/**
+ * e1000e_write_itr - write the ITR value to the appropriate registers
+ * @adapter: address of board private structure
+ * @itr: new ITR value to program
+ *
+ * e1000e_write_itr determines if the adapter is in MSI-X mode
+ * and, if so, writes the EITR registers with the ITR value.
+ * Otherwise, it writes the ITR value into the ITR register.
+ **/
+void e1000e_write_itr(struct e1000_adapter *adapter, u32 itr)
+{
+ struct e1000_hw *hw = &adapter->hw;
+ u32 new_itr = itr ? 1000000000 / (itr * 256) : 0;
+
+ if (adapter->msix_entries) {
+ int vector;
+
+ for (vector = 0; vector < adapter->num_vectors; vector++)
+ writel(new_itr, hw->hw_addr + E1000_EITR_82574(vector));
+ } else {
+ ew32(ITR, new_itr);
+ }
+}
+
+/**
+ * e1000_alloc_queues - Allocate memory for all rings
+ * @adapter: board private structure to initialize
+ **/
+#ifdef HAVE_CONFIG_HOTPLUG
+static int __devinit e1000_alloc_queues(struct e1000_adapter *adapter)
+#else
+static int e1000_alloc_queues(struct e1000_adapter *adapter)
+#endif
+{
+ int size = sizeof(struct e1000_ring);
+
+ adapter->tx_ring = kzalloc_node(size, GFP_KERNEL, adapter->node);
+ if (!adapter->tx_ring)
+ goto err;
+ adapter->tx_ring->count = adapter->tx_ring_count;
+ adapter->tx_ring->adapter = adapter;
+
+ adapter->rx_ring = kzalloc_node(size, GFP_KERNEL, adapter->node);
+ if (!adapter->rx_ring)
+ goto err;
+ adapter->rx_ring->count = adapter->rx_ring_count;
+ adapter->rx_ring->adapter = adapter;
+
+ return 0;
+err:
+ e_err("Unable to allocate memory for queues\n");
+ kfree(adapter->rx_ring);
+ kfree(adapter->tx_ring);
+ return -ENOMEM;
+}
+
+#ifdef CONFIG_E1000E_NAPI
+/**
+ * e1000e_poll - NAPI Rx polling callback
+ * @napi: struct associated with this polling callback
+ * @budget: number of packets driver is allowed to process this poll
+ **/
+static int e1000e_poll(struct napi_struct *napi, int budget)
+{
+ struct e1000_adapter *adapter = container_of(napi, struct e1000_adapter,
+ napi);
+ struct e1000_hw *hw = &adapter->hw;
+ struct net_device *poll_dev = adapter->netdev;
+ int tx_cleaned = 1, work_done = 0;
+
+ adapter = netdev_priv(poll_dev);
+
+ if (!adapter->msix_entries ||
+ (adapter->rx_ring->ims_val & adapter->tx_ring->ims_val))
+ tx_cleaned = e1000_clean_tx_irq(adapter->tx_ring);
+
+ adapter->clean_rx(adapter->rx_ring, &work_done, budget);
+
+ if (!tx_cleaned || work_done == budget)
+ return budget;
+
+#ifndef HAVE_NETDEV_NAPI_LIST
+ /* if netdev is disabled we need to stop polling */
+ if (!netif_running(adapter->netdev))
+ work_done = 0;
+
+#endif
+ /* Exit the polling mode, but don't re-enable interrupts if stack might
+ * poll us due to busy-polling
+ */
+ if (likely(napi_complete_done(napi, work_done))) {
+ if (adapter->itr_setting & 3)
+ e1000_set_itr(adapter);
+ if (!test_bit(__E1000_DOWN, &adapter->state)) {
+ if (adapter->msix_entries)
+ ew32(IMS, adapter->rx_ring->ims_val);
+ else
+ e1000_irq_enable(adapter);
+ }
+ }
+
+ return work_done;
+}
+
+#endif /* CONFIG_E1000E_NAPI */
+#if defined(NETIF_F_HW_VLAN_RX) || defined(NETIF_F_HW_VLAN_CTAG_RX)
+#ifdef HAVE_INT_NDO_VLAN_RX_ADD_VID
+#ifdef NETIF_F_HW_VLAN_CTAG_RX
+static int e1000_vlan_rx_add_vid(struct net_device *netdev,
+ __always_unused __be16 proto, u16 vid)
+#else
+static int e1000_vlan_rx_add_vid(struct net_device *netdev, u16 vid)
+#endif
+#else
+static void e1000_vlan_rx_add_vid(struct net_device *netdev, u16 vid)
+#endif
+{
+ struct e1000_adapter *adapter = netdev_priv(netdev);
+ struct e1000_hw *hw = &adapter->hw;
+ u32 vfta, index;
+
+ /* don't update vlan cookie if already programmed */
+ if ((adapter->hw.mng_cookie.status &
+ E1000_MNG_DHCP_COOKIE_STATUS_VLAN) &&
+ (vid == adapter->mng_vlan_id))
+#ifdef HAVE_INT_NDO_VLAN_RX_ADD_VID
+ return 0;
+#else
+ return;
+#endif
+
+ /* add VID to filter table */
+ if (adapter->flags & FLAG_HAS_HW_VLAN_FILTER) {
+ index = (vid >> 5) & 0x7F;
+ vfta = E1000_READ_REG_ARRAY(hw, E1000_VFTA, index);
+ vfta |= BIT((vid & 0x1F));
+ hw->mac.ops.write_vfta(hw, index, vfta);
+ }
+#ifndef HAVE_NETDEV_VLAN_FEATURES
+
+ /* Copy feature flags from netdev to the vlan netdev for this vid.
+ * This allows things like TSO to bubble down to our vlan device.
+ */
+ if (adapter->vlgrp) {
+ struct vlan_group *vlgrp = adapter->vlgrp;
+ struct net_device *v_netdev = vlan_group_get_device(vlgrp, vid);
+ if (v_netdev) {
+ v_netdev->features |= netdev->features;
+ vlan_group_set_device(vlgrp, vid, v_netdev);
+ }
+ }
+#endif /* HAVE_NETDEV_VLAN_FEATURES */
+#ifndef HAVE_VLAN_RX_REGISTER
+
+ set_bit(vid, adapter->active_vlans);
+#endif /* !HAVE_NETDEV_VLAN_RX_REGISTER */
+#ifdef HAVE_INT_NDO_VLAN_RX_ADD_VID
+
+ return 0;
+#endif
+}
+
+#ifdef HAVE_INT_NDO_VLAN_RX_ADD_VID
+#ifdef NETIF_F_HW_VLAN_CTAG_RX
+static int e1000_vlan_rx_kill_vid(struct net_device *netdev,
+ __always_unused __be16 proto, u16 vid)
+#else
+static int e1000_vlan_rx_kill_vid(struct net_device *netdev, u16 vid)
+#endif
+#else
+static void e1000_vlan_rx_kill_vid(struct net_device *netdev, u16 vid)
+#endif
+{
+ struct e1000_adapter *adapter = netdev_priv(netdev);
+ struct e1000_hw *hw = &adapter->hw;
+ u32 vfta, index;
+
+#ifdef HAVE_VLAN_RX_REGISTER
+ if (!test_bit(__E1000_DOWN, &adapter->state))
+ e1000_irq_disable(adapter);
+
+ vlan_group_set_device(adapter->vlgrp, vid, NULL);
+
+ if (!test_bit(__E1000_DOWN, &adapter->state))
+ e1000_irq_enable(adapter);
+
+#endif /* HAVE_VLAN_RX_REGISTER */
+ if ((adapter->hw.mng_cookie.status &
+ E1000_MNG_DHCP_COOKIE_STATUS_VLAN) &&
+ (vid == adapter->mng_vlan_id)) {
+ /* release control to f/w */
+ e1000e_release_hw_control(adapter);
+#ifdef HAVE_INT_NDO_VLAN_RX_ADD_VID
+ return 0;
+#else
+ return;
+#endif
+ }
+
+ /* remove VID from filter table */
+ if (adapter->flags & FLAG_HAS_HW_VLAN_FILTER) {
+ index = (vid >> 5) & 0x7F;
+ vfta = E1000_READ_REG_ARRAY(hw, E1000_VFTA, index);
+ vfta &= ~BIT((vid & 0x1F));
+ hw->mac.ops.write_vfta(hw, index, vfta);
+ }
+#ifndef HAVE_VLAN_RX_REGISTER
+
+ clear_bit(vid, adapter->active_vlans);
+#endif /* !HAVE_VLAN_RX_REGISTER */
+#ifdef HAVE_INT_NDO_VLAN_RX_ADD_VID
+
+ return 0;
+#endif
+}
+
+#ifndef HAVE_VLAN_RX_REGISTER
+/**
+ * e1000e_vlan_filter_disable - helper to disable hw VLAN filtering
+ * @adapter: board private structure to initialize
+ **/
+static void e1000e_vlan_filter_disable(struct e1000_adapter *adapter)
+{
+ struct net_device *netdev = adapter->netdev;
+ struct e1000_hw *hw = &adapter->hw;
+ u32 rctl;
+
+ if (adapter->flags & FLAG_HAS_HW_VLAN_FILTER) {
+ /* disable VLAN receive filtering */
+ rctl = er32(RCTL);
+ rctl &= ~(E1000_RCTL_VFE | E1000_RCTL_CFIEN);
+ ew32(RCTL, rctl);
+
+ if (adapter->mng_vlan_id != (u16)E1000_MNG_VLAN_NONE) {
+#ifdef NETIF_F_HW_VLAN_CTAG_RX
+ e1000_vlan_rx_kill_vid(netdev, htons(ETH_P_8021Q),
+ adapter->mng_vlan_id);
+#else
+ e1000_vlan_rx_kill_vid(netdev, adapter->mng_vlan_id);
+#endif
+ adapter->mng_vlan_id = E1000_MNG_VLAN_NONE;
+ }
+ }
+}
+
+/**
+ * e1000e_vlan_filter_enable - helper to enable HW VLAN filtering
+ * @adapter: board private structure to initialize
+ **/
+static void e1000e_vlan_filter_enable(struct e1000_adapter *adapter)
+{
+ struct e1000_hw *hw = &adapter->hw;
+ u32 rctl;
+
+ if (adapter->flags & FLAG_HAS_HW_VLAN_FILTER) {
+ /* enable VLAN receive filtering */
+ rctl = er32(RCTL);
+ rctl |= E1000_RCTL_VFE;
+ rctl &= ~E1000_RCTL_CFIEN;
+ ew32(RCTL, rctl);
+ }
+}
+
+/**
+ * e1000e_vlan_strip_disable - helper to disable HW VLAN stripping
+ * @adapter: board private structure to initialize
+ **/
+static void e1000e_vlan_strip_disable(struct e1000_adapter *adapter)
+{
+ struct e1000_hw *hw = &adapter->hw;
+ u32 ctrl;
+
+ /* disable VLAN tag insert/strip */
+ ctrl = er32(CTRL);
+ ctrl &= ~E1000_CTRL_VME;
+ ew32(CTRL, ctrl);
+}
+
+/**
+ * e1000e_vlan_strip_enable - helper to enable HW VLAN stripping
+ * @adapter: board private structure to initialize
+ **/
+static void e1000e_vlan_strip_enable(struct e1000_adapter *adapter)
+{
+ struct e1000_hw *hw = &adapter->hw;
+ u32 ctrl;
+
+ /* enable VLAN tag insert/strip */
+ ctrl = er32(CTRL);
+ ctrl |= E1000_CTRL_VME;
+ ew32(CTRL, ctrl);
+}
+#endif /* !HAVE_VLAN_RX_REGISTER */
+
+static void e1000_update_mng_vlan(struct e1000_adapter *adapter)
+{
+ struct net_device *netdev = adapter->netdev;
+ u16 vid = adapter->hw.mng_cookie.vlan_id;
+ u16 old_vid = adapter->mng_vlan_id;
+
+#ifdef HAVE_VLAN_RX_REGISTER
+ if (!adapter->vlgrp)
+ return;
+
+ if (!vlan_group_get_device(adapter->vlgrp, vid)) {
+ adapter->mng_vlan_id = E1000_MNG_VLAN_NONE;
+ if (adapter->hw.mng_cookie.status &
+ E1000_MNG_DHCP_COOKIE_STATUS_VLAN) {
+ e1000_vlan_rx_add_vid(netdev, vid);
+ adapter->mng_vlan_id = vid;
+ }
+
+ if ((old_vid != (u16)E1000_MNG_VLAN_NONE) &&
+ (vid != old_vid) &&
+ !vlan_group_get_device(adapter->vlgrp, old_vid))
+ e1000_vlan_rx_kill_vid(netdev, old_vid);
+ } else {
+ adapter->mng_vlan_id = vid;
+ }
+#else /* HAVE_VLAN_RX_REGISTER */
+ if (adapter->hw.mng_cookie.status & E1000_MNG_DHCP_COOKIE_STATUS_VLAN) {
+#ifdef NETIF_F_HW_VLAN_CTAG_RX
+ e1000_vlan_rx_add_vid(netdev, htons(ETH_P_8021Q), vid);
+#else
+ e1000_vlan_rx_add_vid(netdev, vid);
+#endif
+ adapter->mng_vlan_id = vid;
+ }
+
+ if ((old_vid != (u16)E1000_MNG_VLAN_NONE) && (vid != old_vid))
+#ifdef NETIF_F_HW_VLAN_CTAG_RX
+ e1000_vlan_rx_kill_vid(netdev, htons(ETH_P_8021Q), old_vid);
+#else
+ e1000_vlan_rx_kill_vid(netdev, old_vid);
+#endif
+#endif /* HAVE_VLAN_RX_REGISTER */
+}
+
+#ifdef HAVE_VLAN_RX_REGISTER
+static void e1000_vlan_rx_register(struct net_device *netdev,
+ struct vlan_group *grp)
+{
+ struct e1000_adapter *adapter = netdev_priv(netdev);
+ struct e1000_hw *hw = &adapter->hw;
+ u32 ctrl, rctl;
+
+ if (!test_bit(__E1000_DOWN, &adapter->state))
+ e1000_irq_disable(adapter);
+ adapter->vlgrp = grp;
+
+ if (grp) {
+ /* enable VLAN tag insert/strip */
+ ctrl = er32(CTRL);
+ ctrl |= E1000_CTRL_VME;
+ ew32(CTRL, ctrl);
+
+ if (adapter->flags & FLAG_HAS_HW_VLAN_FILTER) {
+ /* enable VLAN receive filtering */
+ rctl = er32(RCTL);
+ rctl &= ~E1000_RCTL_CFIEN;
+ ew32(RCTL, rctl);
+ e1000_update_mng_vlan(adapter);
+ }
+ } else {
+ /* disable VLAN tag insert/strip */
+ ctrl = er32(CTRL);
+ ctrl &= ~E1000_CTRL_VME;
+ ew32(CTRL, ctrl);
+
+ if (adapter->flags & FLAG_HAS_HW_VLAN_FILTER) {
+ if (adapter->mng_vlan_id != (u16)E1000_MNG_VLAN_NONE) {
+ e1000_vlan_rx_kill_vid(netdev,
+ adapter->mng_vlan_id);
+ adapter->mng_vlan_id = E1000_MNG_VLAN_NONE;
+ }
+ }
+ }
+
+ if (!test_bit(__E1000_DOWN, &adapter->state))
+ e1000_irq_enable(adapter);
+}
+
+#endif /* HAVE_VLAN_RX_REGISTER */
+static void e1000_restore_vlan(struct e1000_adapter *adapter)
+{
+ u16 vid;
+
+#ifdef HAVE_VLAN_RX_REGISTER
+ e1000_vlan_rx_register(adapter->netdev, adapter->vlgrp);
+
+ if (!adapter->vlgrp)
+ return;
+
+ for (vid = 0; vid < VLAN_N_VID; vid++) {
+ if (!vlan_group_get_device(adapter->vlgrp, vid))
+ continue;
+ e1000_vlan_rx_add_vid(adapter->netdev, vid);
+ }
+#else /* HAVE_VLAN_RX_REGISTER */
+#ifdef NETIF_F_HW_VLAN_CTAG_RX
+ e1000_vlan_rx_add_vid(adapter->netdev, htons(ETH_P_8021Q), 0);
+#else
+ e1000_vlan_rx_add_vid(adapter->netdev, 0);
+#endif
+
+ for_each_set_bit(vid, adapter->active_vlans, VLAN_N_VID)
+#ifdef NETIF_F_HW_VLAN_CTAG_RX
+ e1000_vlan_rx_add_vid(adapter->netdev, htons(ETH_P_8021Q), vid);
+#else
+ e1000_vlan_rx_add_vid(adapter->netdev, vid);
+#endif
+#endif /* HAVE_VLAN_RX_REGISTER */
+}
+
+#endif /* NETIF_F_HW_VLAN_RX || NETIF_F_HW_VLAN_CTAG_RX */
+static void e1000_init_manageability_pt(struct e1000_adapter *adapter)
+{
+ struct e1000_hw *hw = &adapter->hw;
+ u32 manc, manc2h, mdef, i, j;
+
+ if (!(adapter->flags & FLAG_MNG_PT_ENABLED))
+ return;
+
+ manc = er32(MANC);
+
+ /* enable receiving management packets to the host. this will probably
+ * generate destination unreachable messages from the host OS, but
+ * the packets will be handled on SMBUS
+ */
+ manc |= E1000_MANC_EN_MNG2HOST;
+ manc2h = er32(MANC2H);
+
+ switch (hw->mac.type) {
+ default:
+ manc2h |= (E1000_MANC2H_PORT_623 | E1000_MANC2H_PORT_664);
+ break;
+ case e1000_82574:
+ case e1000_82583:
+ /* Check if IPMI pass-through decision filter already exists;
+ * if so, enable it.
+ */
+ for (i = 0, j = 0; i < 8; i++) {
+ mdef = er32(MDEF(i));
+
+ /* Ignore filters with anything other than IPMI ports */
+ if (mdef & ~(E1000_MDEF_PORT_623 | E1000_MDEF_PORT_664))
+ continue;
+
+ /* Enable this decision filter in MANC2H */
+ if (mdef)
+ manc2h |= BIT(i);
+
+ j |= mdef;
+ }
+
+ if (j == (E1000_MDEF_PORT_623 | E1000_MDEF_PORT_664))
+ break;
+
+ /* Create new decision filter in an empty filter */
+ for (i = 0, j = 0; i < 8; i++)
+ if (er32(MDEF(i)) == 0) {
+ ew32(MDEF(i), (E1000_MDEF_PORT_623 |
+ E1000_MDEF_PORT_664));
+ manc2h |= BIT(1);
+ j++;
+ break;
+ }
+
+ if (!j)
+ e_warn("Unable to create IPMI pass-through filter\n");
+ break;
+ }
+
+ ew32(MANC2H, manc2h);
+ ew32(MANC, manc);
+}
+
+/**
+ * e1000_configure_tx - Configure Transmit Unit after Reset
+ * @adapter: board private structure
+ *
+ * Configure the Tx unit of the MAC after a reset.
+ **/
+static void e1000_configure_tx(struct e1000_adapter *adapter)
+{
+ struct e1000_hw *hw = &adapter->hw;
+ struct e1000_ring *tx_ring = adapter->tx_ring;
+ u64 tdba;
+ u32 tdlen, tctl, tarc;
+
+ /* Setup the HW Tx Head and Tail descriptor pointers */
+ tdba = tx_ring->dma;
+ tdlen = tx_ring->count * sizeof(struct e1000_tx_desc);
+ ew32(TDBAL(0), (tdba & DMA_BIT_MASK(32)));
+ ew32(TDBAH(0), (tdba >> 32));
+ ew32(TDLEN(0), tdlen);
+ ew32(TDH(0), 0);
+ ew32(TDT(0), 0);
+ tx_ring->head = adapter->hw.hw_addr + E1000_TDH(0);
+ tx_ring->tail = adapter->hw.hw_addr + E1000_TDT(0);
+
+ /* Set the Tx Interrupt Delay register */
+ ew32(TIDV, adapter->tx_int_delay);
+ /* Tx irq moderation */
+ ew32(TADV, adapter->tx_abs_int_delay);
+
+ if (adapter->flags2 & FLAG2_DMA_BURST) {
+ u32 txdctl = er32(TXDCTL(0));
+
+ txdctl &= ~(E1000_TXDCTL_PTHRESH | E1000_TXDCTL_HTHRESH |
+ E1000_TXDCTL_WTHRESH);
+ /* set up some performance related parameters to encourage the
+ * hardware to use the bus more efficiently in bursts, depends
+ * on the tx_int_delay to be enabled,
+ * wthresh = 1 ==> burst write is disabled to avoid Tx stalls
+ * hthresh = 1 ==> prefetch when one or more available
+ * pthresh = 0x1f ==> prefetch if internal cache 31 or less
+ * BEWARE: this seems to work but should be considered first if
+ * there are Tx hangs or other Tx related bugs
+ */
+ txdctl |= E1000_TXDCTL_DMA_BURST_ENABLE;
+ ew32(TXDCTL(0), txdctl);
+ }
+ /* erratum work around: set txdctl the same for both queues */
+ ew32(TXDCTL(1), er32(TXDCTL(0)));
+
+ /* Program the Transmit Control Register */
+ tctl = er32(TCTL);
+ tctl &= ~E1000_TCTL_CT;
+ tctl |= E1000_TCTL_PSP | E1000_TCTL_RTLC |
+ (E1000_COLLISION_THRESHOLD << E1000_CT_SHIFT);
+
+ if (adapter->flags & FLAG_TARC_SPEED_MODE_BIT) {
+ tarc = er32(TARC(0));
+ /* set the speed mode bit, we'll clear it if we're not at
+ * gigabit link later
+ */
+#define SPEED_MODE_BIT BIT(21)
+ tarc |= SPEED_MODE_BIT;
+ ew32(TARC(0), tarc);
+ }
+
+ /* errata: program both queues to unweighted RR */
+ if (adapter->flags & FLAG_TARC_SET_BIT_ZERO) {
+ tarc = er32(TARC(0));
+ tarc |= 1;
+ ew32(TARC(0), tarc);
+ tarc = er32(TARC(1));
+ tarc |= 1;
+ ew32(TARC(1), tarc);
+ }
+
+ /* Setup Transmit Descriptor Settings for eop descriptor */
+ adapter->txd_cmd = E1000_TXD_CMD_EOP | E1000_TXD_CMD_IFCS;
+
+ /* only set IDE if we are delaying interrupts using the timers */
+ if (adapter->tx_int_delay)
+ adapter->txd_cmd |= E1000_TXD_CMD_IDE;
+
+ /* enable Report Status bit */
+ adapter->txd_cmd |= E1000_TXD_CMD_RS;
+
+ ew32(TCTL, tctl);
+
+ hw->mac.ops.config_collision_dist(hw);
+
+ /* SPT and KBL Si errata workaround to avoid data corruption */
+ if (hw->mac.type == e1000_pch_spt) {
+ u32 reg_val;
+
+ reg_val = er32(IOSFPC);
+ reg_val |= E1000_RCTL_RDMTS_HEX;
+ ew32(IOSFPC, reg_val);
+
+ reg_val = er32(TARC(0));
+ /* SPT and KBL Si errata workaround to avoid Tx hang.
+ * Dropping the number of outstanding requests from
+ * 3 to 2 in order to avoid a buffer overrun.
+ */
+ reg_val &= ~E1000_TARC0_CB_MULTIQ_3_REQ;
+ reg_val |= E1000_TARC0_CB_MULTIQ_2_REQ;
+ ew32(TARC(0), reg_val);
+ }
+}
+
+#define PAGE_USE_COUNT(S) (((S) >> PAGE_SHIFT) + \
+ (((S) & (PAGE_SIZE - 1)) ? 1 : 0))
+/**
+ * e1000_setup_rctl - configure the receive control registers
+ * @adapter: Board private structure
+ **/
+static void e1000_setup_rctl(struct e1000_adapter *adapter)
+{
+ struct e1000_hw *hw = &adapter->hw;
+ u32 rctl, rfctl;
+ u32 pages = 0;
+
+ /* Workaround Si errata on PCHx - configure jumbo frame flow.
+ * If jumbo frames not set, program related MAC/PHY registers
+ * to h/w defaults
+ */
+ if (hw->mac.type >= e1000_pch2lan) {
+ s32 ret_val;
+
+ if (adapter->netdev->mtu > ETH_DATA_LEN)
+ ret_val = e1000_lv_jumbo_workaround_ich8lan(hw, true);
+ else
+ ret_val = e1000_lv_jumbo_workaround_ich8lan(hw, false);
+
+ if (ret_val)
+ e_dbg("failed to enable|disable jumbo frame workaround mode\n");
+ }
+
+ /* Program MC offset vector base */
+ rctl = er32(RCTL);
+ rctl &= ~(3 << E1000_RCTL_MO_SHIFT);
+ rctl |= E1000_RCTL_EN | E1000_RCTL_BAM |
+ E1000_RCTL_LBM_NO | E1000_RCTL_RDMTS_HALF |
+ (adapter->hw.mac.mc_filter_type << E1000_RCTL_MO_SHIFT);
+
+ /* Do not Store bad packets */
+ rctl &= ~E1000_RCTL_SBP;
+
+ /* Enable Long Packet receive */
+ if (adapter->netdev->mtu <= ETH_DATA_LEN)
+ rctl &= ~E1000_RCTL_LPE;
+ else
+ rctl |= E1000_RCTL_LPE;
+
+ /* Some systems expect that the CRC is included in SMBUS traffic. The
+ * hardware strips the CRC before sending to both SMBUS (BMC) and to
+ * host memory when this is enabled
+ */
+ if (adapter->flags2 & FLAG2_CRC_STRIPPING)
+ rctl |= E1000_RCTL_SECRC;
+
+ /* Workaround Si errata on 82577/82578 - configure IPG for jumbos */
+ if ((hw->mac.type == e1000_pchlan) && (rctl & E1000_RCTL_LPE)) {
+ u32 mac_data;
+ u16 phy_data;
+
+ e1e_rphy(hw, PHY_REG(770, 26), &phy_data);
+ phy_data &= 0xfff8;
+ phy_data |= BIT(2);
+ e1e_wphy(hw, PHY_REG(770, 26), phy_data);
+
+ mac_data = er32(FFLT_DBG);
+ mac_data |= BIT(17);
+ ew32(FFLT_DBG, mac_data);
+
+ if (hw->phy.type == e1000_phy_82577) {
+ e1e_rphy(hw, 22, &phy_data);
+ phy_data &= 0x0fff;
+ phy_data |= BIT(14);
+ e1e_wphy(hw, 0x10, 0x2823);
+ e1e_wphy(hw, 0x11, 0x0003);
+ e1e_wphy(hw, 22, phy_data);
+ }
+ }
+
+ /* Setup buffer sizes */
+ rctl &= ~E1000_RCTL_SZ_4096;
+ rctl |= E1000_RCTL_BSEX;
+ switch (adapter->rx_buffer_len) {
+ case 2048:
+ default:
+ rctl |= E1000_RCTL_SZ_2048;
+ rctl &= ~E1000_RCTL_BSEX;
+ break;
+ case 4096:
+ rctl |= E1000_RCTL_SZ_4096;
+ break;
+ case 8192:
+ rctl |= E1000_RCTL_SZ_8192;
+ break;
+ case 16384:
+ rctl |= E1000_RCTL_SZ_16384;
+ break;
+ }
+
+ /* Enable Extended Status in all Receive Descriptors */
+ rfctl = er32(RFCTL);
+ rfctl |= E1000_RFCTL_EXTEN;
+ ew32(RFCTL, rfctl);
+
+ /* 82571 and greater support packet-split where the protocol
+ * header is placed in skb->data and the packet data is
+ * placed in pages hanging off of skb_shinfo(skb)->nr_frags.
+ * In the case of a non-split, skb->data is linearly filled,
+ * followed by the page buffers. Therefore, skb->data is
+ * sized to hold the largest protocol header.
+ *
+ * allocations using alloc_page take too long for regular MTU
+ * so only enable packet split for jumbo frames
+ *
+ * Using pages when the page size is greater than 16k wastes
+ * a lot of memory, since we allocate 3 pages at all times
+ * per packet.
+ */
+ pages = PAGE_USE_COUNT(adapter->netdev->mtu);
+ if ((pages <= 3) && (PAGE_SIZE <= 16384) && (rctl & E1000_RCTL_LPE))
+ adapter->rx_ps_pages = pages;
+ else
+ adapter->rx_ps_pages = 0;
+
+ if (adapter->rx_ps_pages) {
+ u32 psrctl = 0;
+
+ /* Enable Packet split descriptors */
+ rctl |= E1000_RCTL_DTYP_PS;
+
+ psrctl |= adapter->rx_ps_bsize0 >> E1000_PSRCTL_BSIZE0_SHIFT;
+
+ switch (adapter->rx_ps_pages) {
+ case 3:
+ psrctl |= PAGE_SIZE << E1000_PSRCTL_BSIZE3_SHIFT;
+ /* fall-through */
+ case 2:
+ psrctl |= PAGE_SIZE << E1000_PSRCTL_BSIZE2_SHIFT;
+ /* fall-through */
+ case 1:
+ psrctl |= PAGE_SIZE >> E1000_PSRCTL_BSIZE1_SHIFT;
+ break;
+ }
+
+ ew32(PSRCTL, psrctl);
+ }
+
+ /* This is useful for sniffing bad packets. */
+ if (adapter->netdev->features & NETIF_F_RXALL) {
+ /* UPE and MPE will be handled by normal PROMISC logic
+ * in e1000e_set_rx_mode
+ */
+ rctl |= (E1000_RCTL_SBP | /* Receive bad packets */
+ E1000_RCTL_BAM | /* RX All Bcast Pkts */
+ E1000_RCTL_PMCF); /* RX All MAC Ctrl Pkts */
+
+ rctl &= ~(E1000_RCTL_VFE | /* Disable VLAN filter */
+ E1000_RCTL_DPF | /* Allow filtered pause */
+ E1000_RCTL_CFIEN); /* Dis VLAN CFIEN Filter */
+ /* Do not mess with E1000_CTRL_VME, it affects transmit as well,
+ * and that breaks VLANs.
+ */
+ }
+
+ ew32(RCTL, rctl);
+ /* just started the receive unit, no need to restart */
+ adapter->flags &= ~FLAG_RESTART_NOW;
+}
+
+/**
+ * e1000_configure_rx - Configure Receive Unit after Reset
+ * @adapter: board private structure
+ *
+ * Configure the Rx unit of the MAC after a reset.
+ **/
+static void e1000_configure_rx(struct e1000_adapter *adapter)
+{
+ struct e1000_hw *hw = &adapter->hw;
+ struct e1000_ring *rx_ring = adapter->rx_ring;
+ u64 rdba;
+ u32 rdlen, rctl, rxcsum, ctrl_ext;
+
+ if (adapter->rx_ps_pages) {
+ /* this is a 32 byte descriptor */
+ rdlen = rx_ring->count *
+ sizeof(union e1000_rx_desc_packet_split);
+ adapter->clean_rx = e1000_clean_rx_irq_ps;
+ adapter->alloc_rx_buf = e1000_alloc_rx_buffers_ps;
+#ifdef CONFIG_E1000E_NAPI
+ } else if (adapter->netdev->mtu > ETH_FRAME_LEN + ETH_FCS_LEN) {
+ rdlen = rx_ring->count * sizeof(union e1000_rx_desc_extended);
+ adapter->clean_rx = e1000_clean_jumbo_rx_irq;
+ adapter->alloc_rx_buf = e1000_alloc_jumbo_rx_buffers;
+#endif
+ } else {
+ rdlen = rx_ring->count * sizeof(union e1000_rx_desc_extended);
+ adapter->clean_rx = e1000_clean_rx_irq;
+ adapter->alloc_rx_buf = e1000_alloc_rx_buffers;
+ }
+
+ /* disable receives while setting up the descriptors */
+ rctl = er32(RCTL);
+ if (!(adapter->flags2 & FLAG2_NO_DISABLE_RX))
+ ew32(RCTL, rctl & ~E1000_RCTL_EN);
+ e1e_flush();
+ usleep_range(10000, 11000);
+ if (adapter->flags2 & FLAG2_DMA_BURST) {
+ /* set the writeback threshold (only takes effect if the RDTR
+ * is set). set GRAN=1 and write back up to 0x4 worth, and
+ * enable prefetching of 0x20 Rx descriptors
+ * granularity = 01
+ * wthresh = 04,
+ * hthresh = 04,
+ * pthresh = 0x20
+ */
+ ew32(RXDCTL(0), E1000_RXDCTL_DMA_BURST_ENABLE);
+ ew32(RXDCTL(1), E1000_RXDCTL_DMA_BURST_ENABLE);
+
+ /* override the delay timers for enabling bursting, only if
+ * the value was not set by the user via module options
+ */
+ if (adapter->rx_int_delay == DEFAULT_RDTR)
+ adapter->rx_int_delay = BURST_RDTR;
+ if (adapter->rx_abs_int_delay == DEFAULT_RADV)
+ adapter->rx_abs_int_delay = BURST_RADV;
+ }
+
+ /* set the Receive Delay Timer Register */
+ ew32(RDTR, adapter->rx_int_delay);
+
+ /* irq moderation */
+ ew32(RADV, adapter->rx_abs_int_delay);
+ if ((adapter->itr_setting != 0) && (adapter->itr != 0))
+ e1000e_write_itr(adapter, adapter->itr);
+
+ ctrl_ext = er32(CTRL_EXT);
+#ifdef CONFIG_E1000E_NAPI
+ /* Auto-Mask interrupts upon ICR access */
+ ctrl_ext |= E1000_CTRL_EXT_IAME;
+ ew32(IAM, 0xffffffff);
+#endif
+ ew32(CTRL_EXT, ctrl_ext);
+ e1e_flush();
+
+ /* Setup the HW Rx Head and Tail Descriptor Pointers and
+ * the Base and Length of the Rx Descriptor Ring
+ */
+ rdba = rx_ring->dma;
+ ew32(RDBAL(0), (rdba & DMA_BIT_MASK(32)));
+ ew32(RDBAH(0), (rdba >> 32));
+ ew32(RDLEN(0), rdlen);
+ ew32(RDH(0), 0);
+ ew32(RDT(0), 0);
+ rx_ring->head = adapter->hw.hw_addr + E1000_RDH(0);
+ rx_ring->tail = adapter->hw.hw_addr + E1000_RDT(0);
+
+ /* Enable Receive Checksum Offload for TCP and UDP */
+ rxcsum = er32(RXCSUM);
+#ifdef HAVE_NDO_SET_FEATURES
+ if (adapter->netdev->features & NETIF_F_RXCSUM)
+#else
+ if (adapter->flags & FLAG_RX_CSUM_ENABLED)
+#endif
+ rxcsum |= E1000_RXCSUM_TUOFL;
+ else
+ rxcsum &= ~E1000_RXCSUM_TUOFL;
+ ew32(RXCSUM, rxcsum);
+
+ /* With jumbo frames, excessive C-state transition latencies result
+ * in dropped transactions.
+ */
+ if (adapter->netdev->mtu > ETH_DATA_LEN) {
+ u32 lat =
+ ((er32(PBA) & E1000_PBA_RXA_MASK) * 1024 -
+ adapter->max_frame_size) * 8 / 1000;
+
+ if (adapter->flags & FLAG_IS_ICH) {
+ u32 rxdctl = er32(RXDCTL(0));
+
+ ew32(RXDCTL(0), rxdctl | 0x3);
+ }
+#ifdef HAVE_PM_QOS_REQUEST_LIST_NEW
+ cpu_latency_qos_update_request(&adapter->pm_qos_req, lat);
+#elif defined(HAVE_PM_QOS_REQUEST_LIST)
+ pm_qos_update_request(&adapter->pm_qos_req, lat);
+#else
+ pm_qos_update_requirement(PM_QOS_CPU_DMA_LATENCY,
+ adapter->netdev->name, lat);
+#endif
+ } else {
+#ifdef HAVE_PM_QOS_REQUEST_LIST_NEW
+ cpu_latency_qos_update_request(&adapter->pm_qos_req,
+ PM_QOS_DEFAULT_VALUE);
+#elif defined(HAVE_PM_QOS_REQUEST_LIST)
+ pm_qos_update_request(&adapter->pm_qos_req,
+ PM_QOS_DEFAULT_VALUE);
+#else
+ pm_qos_update_requirement(PM_QOS_CPU_DMA_LATENCY,
+ adapter->netdev->name,
+ PM_QOS_DEFAULT_VALUE);
+#endif
+ }
+
+ /* Enable Receives */
+ ew32(RCTL, rctl);
+}
+
+/**
+ * e1000e_write_mc_addr_list - write multicast addresses to MTA
+ * @netdev: network interface device structure
+ *
+ * Writes multicast address list to the MTA hash table.
+ * Returns: -ENOMEM on failure
+ * 0 on no addresses written
+ * X on writing X addresses to MTA
+ */
+static int e1000e_write_mc_addr_list(struct net_device *netdev)
+{
+ struct e1000_adapter *adapter = netdev_priv(netdev);
+ struct e1000_hw *hw = &adapter->hw;
+#ifdef NETDEV_HW_ADDR_T_MULTICAST
+ struct netdev_hw_addr *ha;
+#else
+ struct dev_mc_list *ha;
+#endif
+ u8 *mta_list;
+ int i;
+
+ if (netdev_mc_empty(netdev)) {
+ /* nothing to program, so clear mc list */
+ hw->mac.ops.update_mc_addr_list(hw, NULL, 0);
+ return 0;
+ }
+
+ mta_list = kzalloc(netdev_mc_count(netdev) * ETH_ALEN, GFP_ATOMIC);
+ if (!mta_list)
+ return -ENOMEM;
+
+ /* update_mc_addr_list expects a packed array of only addresses. */
+ i = 0;
+ netdev_for_each_mc_addr(ha, netdev)
+#ifdef NETDEV_HW_ADDR_T_MULTICAST
+ memcpy(mta_list + (i++ * ETH_ALEN), ha->addr, ETH_ALEN);
+#else
+ memcpy(mta_list + (i++ * ETH_ALEN), ha->dmi_addr, ETH_ALEN);
+#endif
+
+ hw->mac.ops.update_mc_addr_list(hw, mta_list, i);
+ kfree(mta_list);
+
+ return netdev_mc_count(netdev);
+}
+
+#ifdef HAVE_SET_RX_MODE
+/**
+ * e1000e_write_uc_addr_list - write unicast addresses to RAR table
+ * @netdev: network interface device structure
+ *
+ * Writes unicast address list to the RAR table.
+ * Returns: -ENOMEM on failure/insufficient address space
+ * 0 on no addresses written
+ * X on writing X addresses to the RAR table
+ **/
+static int e1000e_write_uc_addr_list(struct net_device *netdev)
+{
+ struct e1000_adapter *adapter = netdev_priv(netdev);
+ struct e1000_hw *hw = &adapter->hw;
+ unsigned int rar_entries;
+ int count = 0;
+
+ rar_entries = hw->mac.ops.rar_get_count(hw);
+
+ /* save a rar entry for our hardware address */
+ rar_entries--;
+
+ /* save a rar entry for the LAA workaround */
+ if (adapter->flags & FLAG_RESET_OVERWRITES_LAA)
+ rar_entries--;
+
+ /* return ENOMEM indicating insufficient memory for addresses */
+ if (netdev_uc_count(netdev) > rar_entries)
+ return -ENOMEM;
+
+ if (!netdev_uc_empty(netdev) && rar_entries) {
+#ifdef NETDEV_HW_ADDR_T_UNICAST
+ struct netdev_hw_addr *ha;
+#else
+ struct dev_mc_list *ha;
+#endif
+
+ /* write the addresses in reverse order to avoid write
+ * combining
+ */
+ netdev_for_each_uc_addr(ha, netdev) {
+ int ret_val;
+
+ if (!rar_entries)
+ break;
+#ifdef NETDEV_HW_ADDR_T_UNICAST
+ ret_val = hw->mac.ops.rar_set(hw, ha->addr,
+ rar_entries--);
+#else
+ ret_val = hw->mac.ops.rar_set(hw, ha->da_addr,
+ rar_entries--);
+#endif
+ if (ret_val < 0)
+ return -ENOMEM;
+ count++;
+ }
+ }
+
+ /* zero out the remaining RAR entries not used above */
+ for (; rar_entries > 0; rar_entries--) {
+ ew32(RAH(rar_entries), 0);
+ ew32(RAL(rar_entries), 0);
+ }
+ e1e_flush();
+
+ return count;
+}
+
+#endif /* HAVE_SET_RX_MODE */
+/**
+ * e1000e_set_rx_mode - secondary unicast, Multicast and Promiscuous mode set
+ * @netdev: network interface device structure
+ *
+ * The ndo_set_rx_mode entry point is called whenever the unicast or multicast
+ * address list or the network interface flags are updated. This routine is
+ * responsible for configuring the hardware for proper unicast, multicast,
+ * promiscuous mode, and all-multi behavior.
+ **/
+static void e1000e_set_rx_mode(struct net_device *netdev)
+{
+ struct e1000_adapter *adapter = netdev_priv(netdev);
+ struct e1000_hw *hw = &adapter->hw;
+ u32 rctl;
+
+ if (pm_runtime_suspended((netdev_to_dev(netdev))->parent))
+ return;
+
+ /* Check for Promiscuous and All Multicast modes */
+ rctl = er32(RCTL);
+
+ /* clear the affected bits */
+ rctl &= ~(E1000_RCTL_UPE | E1000_RCTL_MPE);
+
+ if (netdev->flags & IFF_PROMISC) {
+ rctl |= (E1000_RCTL_UPE | E1000_RCTL_MPE);
+#ifdef HAVE_VLAN_RX_REGISTER
+ rctl &= ~E1000_RCTL_VFE;
+#else
+ /* Do not hardware filter VLANs in promisc mode */
+ e1000e_vlan_filter_disable(adapter);
+#endif /* HAVE_VLAN_RX_REGISTER */
+ } else {
+ int count;
+
+ if (netdev->flags & IFF_ALLMULTI) {
+ rctl |= E1000_RCTL_MPE;
+ } else {
+ /* Write addresses to the MTA, if the attempt fails
+ * then we should just turn on promiscuous mode so
+ * that we can at least receive multicast traffic
+ */
+ count = e1000e_write_mc_addr_list(netdev);
+ if (count < 0)
+ rctl |= E1000_RCTL_MPE;
+ }
+#ifdef HAVE_VLAN_RX_REGISTER
+ if (adapter->flags & FLAG_HAS_HW_VLAN_FILTER)
+ rctl |= E1000_RCTL_VFE;
+#else
+ e1000e_vlan_filter_enable(adapter);
+#endif
+#ifdef HAVE_SET_RX_MODE
+ /* Write addresses to available RAR registers, if there is not
+ * sufficient space to store all the addresses then enable
+ * unicast promiscuous mode
+ */
+ count = e1000e_write_uc_addr_list(netdev);
+ if (count < 0)
+ rctl |= E1000_RCTL_UPE;
+#endif /* HAVE_SET_RX_MODE */
+ }
+
+ ew32(RCTL, rctl);
+#ifndef HAVE_VLAN_RX_REGISTER
+
+#ifdef NETIF_F_HW_VLAN_CTAG_RX
+ if (netdev->features & NETIF_F_HW_VLAN_CTAG_RX)
+#else
+ if (netdev->features & NETIF_F_HW_VLAN_RX)
+#endif
+ e1000e_vlan_strip_enable(adapter);
+ else
+ e1000e_vlan_strip_disable(adapter);
+#endif /* HAVE_VLAN_RX_REGISTER */
+}
+
+#ifdef NETIF_F_RXHASH
+static void e1000e_setup_rss_hash(struct e1000_adapter *adapter)
+{
+ struct e1000_hw *hw = &adapter->hw;
+ u32 mrqc, rxcsum;
+ u32 rss_key[10];
+ int i;
+
+ netdev_rss_key_fill(rss_key, sizeof(rss_key));
+ for (i = 0; i < 10; i++)
+ ew32(RSSRK(i), rss_key[i]);
+
+ /* Direct all traffic to queue 0 */
+ for (i = 0; i < 32; i++)
+ ew32(RETA(i), 0);
+
+ /* Disable raw packet checksumming so that RSS hash is placed in
+ * descriptor on writeback.
+ */
+ rxcsum = er32(RXCSUM);
+ rxcsum |= E1000_RXCSUM_PCSD;
+
+ ew32(RXCSUM, rxcsum);
+
+ mrqc = (E1000_MRQC_RSS_FIELD_IPV4 |
+ E1000_MRQC_RSS_FIELD_IPV4_TCP |
+ E1000_MRQC_RSS_FIELD_IPV6 |
+ E1000_MRQC_RSS_FIELD_IPV6_TCP |
+ E1000_MRQC_RSS_FIELD_IPV6_TCP_EX);
+
+ ew32(MRQC, mrqc);
+}
+
+#endif /* NETIF_F_RXHASH */
+#ifdef HAVE_HW_TIME_STAMP
+#ifdef HAVE_PTP_1588_CLOCK
+/**
+ * e1000e_get_base_timinca - get default SYSTIM time increment attributes
+ * @adapter: board private structure
+ * @timinca: pointer to returned time increment attributes
+ *
+ * Get attributes for incrementing the System Time Register SYSTIML/H at
+ * the default base frequency, and set the cyclecounter shift value.
+ **/
+s32 e1000e_get_base_timinca(struct e1000_adapter *adapter, u32 *timinca)
+{
+ struct e1000_hw *hw = &adapter->hw;
+ u32 incvalue, incperiod, shift;
+
+ /* Make sure clock is enabled on I217/I218/I219 before checking
+ * the frequency
+ */
+ if ((hw->mac.type >= e1000_pch_lpt) &&
+ !(er32(TSYNCTXCTL) & E1000_TSYNCTXCTL_ENABLED) &&
+ !(er32(TSYNCRXCTL) & E1000_TSYNCRXCTL_ENABLED)) {
+ u32 fextnvm7 = er32(FEXTNVM7);
+
+ if (!(fextnvm7 & BIT(0))) {
+ ew32(FEXTNVM7, fextnvm7 | BIT(0));
+ e1e_flush();
+ }
+ }
+
+ switch (hw->mac.type) {
+ case e1000_pch2lan:
+ /* Stable 96MHz frequency */
+ incperiod = INCPERIOD_96MHZ;
+ incvalue = INCVALUE_96MHZ;
+ shift = INCVALUE_SHIFT_96MHZ;
+ adapter->cc.shift = shift + INCPERIOD_SHIFT_96MHZ;
+ break;
+ case e1000_pch_lpt:
+ if (er32(TSYNCRXCTL) & E1000_TSYNCRXCTL_SYSCFI) {
+ /* Stable 96MHz frequency */
+ incperiod = INCPERIOD_96MHZ;
+ incvalue = INCVALUE_96MHZ;
+ shift = INCVALUE_SHIFT_96MHZ;
+ adapter->cc.shift = shift + INCPERIOD_SHIFT_96MHZ;
+ } else {
+ /* Stable 25MHz frequency */
+ incperiod = INCPERIOD_25MHZ;
+ incvalue = INCVALUE_25MHZ;
+ shift = INCVALUE_SHIFT_25MHZ;
+ adapter->cc.shift = shift;
+ }
+ break;
+ case e1000_pch_spt:
+ if (er32(TSYNCRXCTL) & E1000_TSYNCRXCTL_SYSCFI) {
+ /* Stable 24MHz frequency */
+ incperiod = INCPERIOD_24MHZ;
+ incvalue = INCVALUE_24MHZ;
+ shift = INCVALUE_SHIFT_24MHZ;
+ adapter->cc.shift = shift;
+ break;
+ }
+ return -EINVAL;
+ case e1000_pch_cnp:
+ case e1000_pch_tgp:
+ case e1000_pch_adp:
+ if (er32(TSYNCRXCTL) & E1000_TSYNCRXCTL_SYSCFI) {
+ /* Stable 24MHz frequency */
+ incperiod = INCPERIOD_24MHZ;
+ incvalue = INCVALUE_24MHZ;
+ shift = INCVALUE_SHIFT_24MHZ;
+ adapter->cc.shift = shift;
+ } else {
+ /* Stable 38400KHz frequency */
+ incperiod = INCPERIOD_38400KHZ;
+ incvalue = INCVALUE_38400KHZ;
+ shift = INCVALUE_SHIFT_38400KHZ;
+ adapter->cc.shift = shift;
+ }
+ break;
+ case e1000_82574:
+ case e1000_82583:
+ /* Stable 25MHz frequency */
+ incperiod = INCPERIOD_25MHZ;
+ incvalue = INCVALUE_25MHZ;
+ shift = INCVALUE_SHIFT_25MHZ;
+ adapter->cc.shift = shift;
+ break;
+ default:
+ return -EINVAL;
+ }
+
+ *timinca = ((incperiod << E1000_TIMINCA_INCPERIOD_SHIFT) |
+ ((incvalue << shift) & E1000_TIMINCA_INCVALUE_MASK));
+
+ return 0;
+}
+#endif /* HAVE_PTP_1588_CLOCK */
+
+/**
+ * e1000e_config_hwtstamp - configure the hwtstamp registers and enable/disable
+ * @adapter: board private structure
+ * @config: struct that keeps hwtstamp configurations
+ *
+ * Outgoing time stamping can be enabled and disabled. Play nice and
+ * disable it when requested, although it shouldn't cause any overhead
+ * when no packet needs it. At most one packet in the queue may be
+ * marked for time stamping, otherwise it would be impossible to tell
+ * for sure to which packet the hardware time stamp belongs.
+ *
+ * Incoming time stamping has to be configured via the hardware filters.
+ * Not all combinations are supported, in particular event type has to be
+ * specified. Matching the kind of event packet is not supported, with the
+ * exception of "all V2 events regardless of level 2 or 4".
+ **/
+static int e1000e_config_hwtstamp(struct e1000_adapter *adapter,
+ struct hwtstamp_config *config)
+{
+ struct e1000_hw *hw = &adapter->hw;
+ u32 tsync_tx_ctl = E1000_TSYNCTXCTL_ENABLED;
+ u32 tsync_rx_ctl = E1000_TSYNCRXCTL_ENABLED;
+#ifdef HAVE_PTP_1588_CLOCK
+ u32 rxmtrl = 0;
+ u16 rxudp = 0;
+ bool is_l4 = false;
+ bool is_l2 = false;
+#endif
+ u32 regval;
+
+ if (!(adapter->flags & FLAG_HAS_HW_TIMESTAMP))
+ return -EINVAL;
+
+ /* flags reserved for future extensions - must be zero */
+ if (config->flags)
+ return -EINVAL;
+
+ switch (config->tx_type) {
+ case HWTSTAMP_TX_OFF:
+ tsync_tx_ctl = 0;
+ break;
+ case HWTSTAMP_TX_ON:
+ break;
+ default:
+ return -ERANGE;
+ }
+
+ switch (config->rx_filter) {
+ case HWTSTAMP_FILTER_NONE:
+ tsync_rx_ctl = 0;
+ break;
+#ifdef HAVE_PTP_1588_CLOCK
+ case HWTSTAMP_FILTER_PTP_V1_L4_SYNC:
+ tsync_rx_ctl |= E1000_TSYNCRXCTL_TYPE_L4_V1;
+ rxmtrl = E1000_RXMTRL_PTP_V1_SYNC_MESSAGE;
+ is_l4 = true;
+ break;
+ case HWTSTAMP_FILTER_PTP_V1_L4_DELAY_REQ:
+ tsync_rx_ctl |= E1000_TSYNCRXCTL_TYPE_L4_V1;
+ rxmtrl = E1000_RXMTRL_PTP_V1_DELAY_REQ_MESSAGE;
+ is_l4 = true;
+ break;
+ case HWTSTAMP_FILTER_PTP_V2_L2_SYNC:
+ /* Also time stamps V2 L2 Path Delay Request/Response */
+ tsync_rx_ctl |= E1000_TSYNCRXCTL_TYPE_L2_V2;
+ rxmtrl = E1000_RXMTRL_PTP_V2_SYNC_MESSAGE;
+ is_l2 = true;
+ break;
+ case HWTSTAMP_FILTER_PTP_V2_L2_DELAY_REQ:
+ /* Also time stamps V2 L2 Path Delay Request/Response. */
+ tsync_rx_ctl |= E1000_TSYNCRXCTL_TYPE_L2_V2;
+ rxmtrl = E1000_RXMTRL_PTP_V2_DELAY_REQ_MESSAGE;
+ is_l2 = true;
+ break;
+ case HWTSTAMP_FILTER_PTP_V2_L4_SYNC:
+ /* Hardware cannot filter just V2 L4 Sync messages;
+ * fall-through to V2 (both L2 and L4) Sync.
+ */
+ case HWTSTAMP_FILTER_PTP_V2_SYNC:
+ /* Also time stamps V2 Path Delay Request/Response. */
+ tsync_rx_ctl |= E1000_TSYNCRXCTL_TYPE_L2_L4_V2;
+ rxmtrl = E1000_RXMTRL_PTP_V2_SYNC_MESSAGE;
+ is_l2 = true;
+ is_l4 = true;
+ break;
+ case HWTSTAMP_FILTER_PTP_V2_L4_DELAY_REQ:
+ /* Hardware cannot filter just V2 L4 Delay Request messages;
+ * fall-through to V2 (both L2 and L4) Delay Request.
+ */
+ case HWTSTAMP_FILTER_PTP_V2_DELAY_REQ:
+ /* Also time stamps V2 Path Delay Request/Response. */
+ tsync_rx_ctl |= E1000_TSYNCRXCTL_TYPE_L2_L4_V2;
+ rxmtrl = E1000_RXMTRL_PTP_V2_DELAY_REQ_MESSAGE;
+ is_l2 = true;
+ is_l4 = true;
+ break;
+ case HWTSTAMP_FILTER_PTP_V2_L4_EVENT:
+ case HWTSTAMP_FILTER_PTP_V2_L2_EVENT:
+ /* Hardware cannot filter just V2 L4 or L2 Event messages;
+ * fall-through to all V2 (both L2 and L4) Events.
+ */
+ case HWTSTAMP_FILTER_PTP_V2_EVENT:
+ tsync_rx_ctl |= E1000_TSYNCRXCTL_TYPE_EVENT_V2;
+ config->rx_filter = HWTSTAMP_FILTER_PTP_V2_EVENT;
+ is_l2 = true;
+ is_l4 = true;
+ break;
+ case HWTSTAMP_FILTER_PTP_V1_L4_EVENT:
+ /* fall-through */
+ /* For V1, the hardware can only filter Sync messages or
+ * Delay Request messages but not both so fall-through to
+ * time stamp all packets.
+ */
+#endif /* HAVE_PTP_1588_CLOCK */
+#ifdef HAVE_HWTSTAMP_FILTER_NTP_ALL
+ case HWTSTAMP_FILTER_NTP_ALL:
+#endif /* HAVE_HWTSTAMP_FILTER_NTP_ALL */
+ case HWTSTAMP_FILTER_ALL:
+#ifdef HAVE_PTP_1588_CLOCK
+ is_l2 = true;
+ is_l4 = true;
+#endif
+ tsync_rx_ctl |= E1000_TSYNCRXCTL_TYPE_ALL;
+ config->rx_filter = HWTSTAMP_FILTER_ALL;
+ break;
+ default:
+ return -ERANGE;
+ }
+
+ adapter->hwtstamp_config = *config;
+
+ /* enable/disable Tx h/w time stamping */
+ regval = er32(TSYNCTXCTL);
+ regval &= ~E1000_TSYNCTXCTL_ENABLED;
+ regval |= tsync_tx_ctl;
+ ew32(TSYNCTXCTL, regval);
+ if ((er32(TSYNCTXCTL) & E1000_TSYNCTXCTL_ENABLED) !=
+ (regval & E1000_TSYNCTXCTL_ENABLED)) {
+ e_err("Timesync Tx Control register not set as expected\n");
+ return -EAGAIN;
+ }
+
+ /* enable/disable Rx h/w time stamping */
+ regval = er32(TSYNCRXCTL);
+ regval &= ~(E1000_TSYNCRXCTL_ENABLED | E1000_TSYNCRXCTL_TYPE_MASK);
+ regval |= tsync_rx_ctl;
+ ew32(TSYNCRXCTL, regval);
+ if ((er32(TSYNCRXCTL) & (E1000_TSYNCRXCTL_ENABLED |
+ E1000_TSYNCRXCTL_TYPE_MASK)) !=
+ (regval & (E1000_TSYNCRXCTL_ENABLED |
+ E1000_TSYNCRXCTL_TYPE_MASK))) {
+ e_err("Timesync Rx Control register not set as expected\n");
+ return -EAGAIN;
+ }
+#ifdef HAVE_PTP_1588_CLOCK
+ /* L2: define ethertype filter for time stamped packets */
+ if (is_l2)
+ rxmtrl |= ETH_P_1588;
+
+ /* define which PTP packets get time stamped */
+ ew32(RXMTRL, rxmtrl);
+
+ /* Filter by destination port */
+ if (is_l4) {
+ rxudp = PTP_EV_PORT;
+ cpu_to_be16s(&rxudp);
+ }
+ ew32(RXUDP, rxudp);
+
+ e1e_flush();
+#endif
+
+ /* Clear TSYNCRXCTL_VALID & TSYNCTXCTL_VALID bit */
+ er32(RXSTMPH);
+ er32(TXSTMPH);
+
+ return 0;
+}
+#endif /* HAVE_HW_TIME_STAMP */
+
+/**
+ * e1000_configure - configure the hardware for Rx and Tx
+ * @adapter: private board structure
+ **/
+static void e1000_configure(struct e1000_adapter *adapter)
+{
+ struct e1000_ring *rx_ring = adapter->rx_ring;
+
+ e1000e_set_rx_mode(adapter->netdev);
+
+#if defined(NETIF_F_HW_VLAN_TX) || defined(NETIF_F_HW_VLAN_CTAG_TX)
+ e1000_restore_vlan(adapter);
+#endif
+ e1000_init_manageability_pt(adapter);
+
+ e1000_configure_tx(adapter);
+
+#ifdef NETIF_F_RXHASH
+ if (adapter->netdev->features & NETIF_F_RXHASH)
+ e1000e_setup_rss_hash(adapter);
+#endif
+ e1000_setup_rctl(adapter);
+ e1000_configure_rx(adapter);
+ adapter->alloc_rx_buf(rx_ring, e1000_desc_unused(rx_ring), GFP_KERNEL);
+}
+
+/**
+ * e1000e_power_up_phy - restore link in case the phy was powered down
+ * @adapter: address of board private structure
+ *
+ * The phy may be powered down to save power and turn off link when the
+ * driver is unloaded and wake on lan is not enabled (among others)
+ * *** this routine MUST be followed by a call to e1000e_reset ***
+ **/
+void e1000e_power_up_phy(struct e1000_adapter *adapter)
+{
+ if (adapter->hw.phy.ops.power_up)
+ adapter->hw.phy.ops.power_up(&adapter->hw);
+
+ adapter->hw.mac.ops.setup_link(&adapter->hw);
+}
+
+/**
+ * e1000_power_down_phy - Power down the PHY
+ * @adapter: board private structure
+ *
+ * Power down the PHY so no link is implied when interface is down.
+ * The PHY cannot be powered down if management or WoL is active.
+ */
+static void e1000_power_down_phy(struct e1000_adapter *adapter)
+{
+ if (adapter->hw.phy.ops.power_down)
+ adapter->hw.phy.ops.power_down(&adapter->hw);
+}
+
+/**
+ * e1000_flush_tx_ring - remove all descriptors from the tx_ring
+ * @adapter: board private structure
+ *
+ * We want to clear all pending descriptors from the TX ring.
+ * zeroing happens when the HW reads the regs. We assign the ring itself as
+ * the data of the next descriptor. We don't care about the data we are about
+ * to reset the HW.
+ */
+static void e1000_flush_tx_ring(struct e1000_adapter *adapter)
+{
+ struct e1000_hw *hw = &adapter->hw;
+ struct e1000_ring *tx_ring = adapter->tx_ring;
+ struct e1000_tx_desc *tx_desc = NULL;
+ u32 tdt, tctl, txd_lower = E1000_TXD_CMD_IFCS;
+ u16 size = 512;
+
+ tctl = er32(TCTL);
+ ew32(TCTL, tctl | E1000_TCTL_EN);
+ tdt = er32(TDT(0));
+ BUG_ON(tdt != tx_ring->next_to_use);
+ tx_desc = E1000_TX_DESC(*tx_ring, tx_ring->next_to_use);
+ tx_desc->buffer_addr = tx_ring->dma;
+
+ tx_desc->lower.data = cpu_to_le32(txd_lower | size);
+ tx_desc->upper.data = 0;
+ /* flush descriptors to memory before notifying the HW */
+ wmb();
+ tx_ring->next_to_use++;
+ if (tx_ring->next_to_use == tx_ring->count)
+ tx_ring->next_to_use = 0;
+ ew32(TDT(0), tx_ring->next_to_use);
+#ifndef SPIN_UNLOCK_IMPLIES_MMIOWB
+ /* It's not entirely clear whether this mmiowb() actually matters, as
+ * it's not obviously paired with an associated spin lock. However, in
+ * the chance that it is necessary on some architectures, it is
+ * retained for older kernels which have access to it.
+ */
+ mmiowb();
+#endif /* SPIN_UNLOCK_IMPLIES_MMIOWB */
+ usleep_range(200, 250);
+}
+
+/**
+ * e1000_flush_rx_ring - remove all descriptors from the rx_ring
+ * @adapter: board private structure
+ *
+ * Mark all descriptors in the RX ring as consumed and disable the rx ring
+ */
+static void e1000_flush_rx_ring(struct e1000_adapter *adapter)
+{
+ u32 rctl, rxdctl;
+ struct e1000_hw *hw = &adapter->hw;
+
+ rctl = er32(RCTL);
+ ew32(RCTL, rctl & ~E1000_RCTL_EN);
+ e1e_flush();
+ usleep_range(100, 150);
+
+ rxdctl = er32(RXDCTL(0));
+ /* zero the lower 14 bits (prefetch and host thresholds) */
+ rxdctl &= 0xffffc000;
+
+ /* update thresholds: prefetch threshold to 31, host threshold to 1
+ * and make sure the granularity is "descriptors" and not "cache lines"
+ */
+ rxdctl |= (0x1F | BIT(8) | E1000_RXDCTL_THRESH_UNIT_DESC);
+
+ ew32(RXDCTL(0), rxdctl);
+ /* momentarily enable the RX ring for the changes to take effect */
+ ew32(RCTL, rctl | E1000_RCTL_EN);
+ e1e_flush();
+ usleep_range(100, 150);
+ ew32(RCTL, rctl & ~E1000_RCTL_EN);
+}
+
+/**
+ * e1000_flush_desc_rings - remove all descriptors from the descriptor rings
+ * @adapter: board private structure
+ *
+ * In i219, the descriptor rings must be emptied before resetting the HW
+ * or before changing the device state to D3 during runtime (runtime PM).
+ *
+ * Failure to do this will cause the HW to enter a unit hang state which can
+ * only be released by PCI reset on the device
+ *
+ */
+
+static void e1000_flush_desc_rings(struct e1000_adapter *adapter)
+{
+ u16 hang_state;
+ u32 fext_nvm11, tdlen;
+ struct e1000_hw *hw = &adapter->hw;
+
+ /* First, disable MULR fix in FEXTNVM11 */
+ fext_nvm11 = er32(FEXTNVM11);
+ fext_nvm11 |= E1000_FEXTNVM11_DISABLE_MULR_FIX;
+ ew32(FEXTNVM11, fext_nvm11);
+ /* do nothing if we're not in faulty state, or if the queue is empty */
+ tdlen = er32(TDLEN(0));
+ pci_read_config_word(adapter->pdev, PCICFG_DESC_RING_STATUS,
+ &hang_state);
+ if (!(hang_state & FLUSH_DESC_REQUIRED) || !tdlen)
+ return;
+ e1000_flush_tx_ring(adapter);
+ /* recheck, maybe the fault is caused by the rx ring */
+ pci_read_config_word(adapter->pdev, PCICFG_DESC_RING_STATUS,
+ &hang_state);
+ if (hang_state & FLUSH_DESC_REQUIRED)
+ e1000_flush_rx_ring(adapter);
+}
+
+#ifdef HAVE_HW_TIME_STAMP
+/**
+ * e1000e_systim_reset - reset the timesync registers after a hardware reset
+ * @adapter: board private structure
+ *
+ * When the MAC is reset, all hardware bits for timesync will be reset to the
+ * default values. This function will restore the settings last in place.
+ * Since the clock SYSTIME registers are reset, we will simply restore the
+ * cyclecounter to the kernel real clock time.
+ **/
+static void e1000e_systim_reset(struct e1000_adapter *adapter)
+{
+#ifdef HAVE_PTP_1588_CLOCK
+ struct ptp_clock_info *info = &adapter->ptp_clock_info;
+ struct e1000_hw *hw = &adapter->hw;
+ unsigned long flags;
+ u32 timinca;
+ s32 ret_val;
+
+ if (!(adapter->flags & FLAG_HAS_HW_TIMESTAMP))
+ return;
+
+ if (info->adjfreq) {
+ /* restore the previous ptp frequency delta */
+ ret_val = info->adjfreq(info, adapter->ptp_delta);
+ } else {
+ /* set the default base frequency if no adjustment possible */
+ ret_val = e1000e_get_base_timinca(adapter, &timinca);
+ if (!ret_val)
+ ew32(TIMINCA, timinca);
+ }
+
+ if (ret_val) {
+ dev_warn(&adapter->pdev->dev,
+ "Failed to restore TIMINCA clock rate delta: %d\n",
+ ret_val);
+ return;
+ }
+
+ /* reset the systim ns time counter */
+ spin_lock_irqsave(&adapter->systim_lock, flags);
+ timecounter_init(&adapter->tc, &adapter->cc,
+ ktime_to_ns(ktime_get_real()));
+ spin_unlock_irqrestore(&adapter->systim_lock, flags);
+#endif /* HAVE_PTP_1588_CLOCK */
+
+ /* restore the previous hwtstamp configuration settings */
+ e1000e_config_hwtstamp(adapter, &adapter->hwtstamp_config);
+}
+#endif /* HAVE_HW_TIME_STAMP */
+
+/**
+ * e1000e_reset - bring the hardware into a known good state
+ * @adapter: board private structure
+ *
+ * This function boots the hardware and enables some settings that
+ * require a configuration cycle of the hardware - those cannot be
+ * set/changed during runtime. After reset the device needs to be
+ * properly configured for Rx, Tx etc.
+ */
+void e1000e_reset(struct e1000_adapter *adapter)
+{
+ struct e1000_mac_info *mac = &adapter->hw.mac;
+ struct e1000_fc_info *fc = &adapter->hw.fc;
+ struct e1000_hw *hw = &adapter->hw;
+ u32 tx_space, min_tx_space, min_rx_space;
+ u32 pba = adapter->pba;
+ u16 hwm;
+
+ /* reset Packet Buffer Allocation to default */
+ ew32(PBA, pba);
+
+ if (adapter->max_frame_size > (VLAN_ETH_FRAME_LEN + ETH_FCS_LEN)) {
+ /* To maintain wire speed transmits, the Tx FIFO should be
+ * large enough to accommodate two full transmit packets,
+ * rounded up to the next 1KB and expressed in KB. Likewise,
+ * the Rx FIFO should be large enough to accommodate at least
+ * one full receive packet and is similarly rounded up and
+ * expressed in KB.
+ */
+ pba = er32(PBA);
+ /* upper 16 bits has Tx packet buffer allocation size in KB */
+ tx_space = pba >> 16;
+ /* lower 16 bits has Rx packet buffer allocation size in KB */
+ pba &= 0xffff;
+ /* the Tx fifo also stores 16 bytes of information about the Tx
+ * but don't include ethernet FCS because hardware appends it
+ */
+ min_tx_space = (adapter->max_frame_size +
+ sizeof(struct e1000_tx_desc) - ETH_FCS_LEN) * 2;
+ min_tx_space = ALIGN(min_tx_space, 1024);
+ min_tx_space >>= 10;
+ /* software strips receive CRC, so leave room for it */
+ min_rx_space = adapter->max_frame_size;
+ min_rx_space = ALIGN(min_rx_space, 1024);
+ min_rx_space >>= 10;
+
+ /* If current Tx allocation is less than the min Tx FIFO size,
+ * and the min Tx FIFO size is less than the current Rx FIFO
+ * allocation, take space away from current Rx allocation
+ */
+ if ((tx_space < min_tx_space) &&
+ ((min_tx_space - tx_space) < pba)) {
+ pba -= min_tx_space - tx_space;
+
+ /* if short on Rx space, Rx wins and must trump Tx
+ * adjustment
+ */
+ if (pba < min_rx_space)
+ pba = min_rx_space;
+ }
+
+ ew32(PBA, pba);
+ }
+
+ /* flow control settings
+ *
+ * The high water mark must be low enough to fit one full frame
+ * (or the size used for early receive) above it in the Rx FIFO.
+ * Set it to the lower of:
+ * - 90% of the Rx FIFO size, and
+ * - the full Rx FIFO size minus one full frame
+ */
+ if (adapter->flags & FLAG_DISABLE_FC_PAUSE_TIME)
+ fc->pause_time = 0xFFFF;
+ else
+ fc->pause_time = E1000_FC_PAUSE_TIME;
+ fc->send_xon = true;
+ fc->current_mode = fc->requested_mode;
+
+ switch (hw->mac.type) {
+ case e1000_ich9lan:
+ case e1000_ich10lan:
+ if (adapter->netdev->mtu > ETH_DATA_LEN) {
+ pba = 14;
+ ew32(PBA, pba);
+ fc->high_water = 0x2800;
+ fc->low_water = fc->high_water - 8;
+ break;
+ }
+ /* fall-through */
+ default:
+ hwm = min(((pba << 10) * 9 / 10),
+ ((pba << 10) - adapter->max_frame_size));
+
+ fc->high_water = hwm & E1000_FCRTH_RTH; /* 8-byte granularity */
+ fc->low_water = fc->high_water - 8;
+ break;
+ case e1000_pchlan:
+ /* Workaround PCH LOM adapter hangs with certain network
+ * loads. If hangs persist, try disabling Tx flow control.
+ */
+ if (adapter->netdev->mtu > ETH_DATA_LEN) {
+ fc->high_water = 0x3500;
+ fc->low_water = 0x1500;
+ } else {
+ fc->high_water = 0x5000;
+ fc->low_water = 0x3000;
+ }
+ fc->refresh_time = 0x1000;
+ break;
+ case e1000_pch2lan:
+ case e1000_pch_lpt:
+ case e1000_pch_spt:
+ case e1000_pch_cnp:
+ /* fall-through */
+ case e1000_pch_tgp:
+ case e1000_pch_adp:
+
+ fc->refresh_time = 0x0400;
+
+ if (adapter->netdev->mtu <= ETH_DATA_LEN) {
+ fc->high_water = 0x05C20;
+ fc->low_water = 0x05048;
+ fc->pause_time = 0x0650;
+ break;
+ }
+
+ pba = 14;
+ ew32(PBA, pba);
+ fc->high_water = ((pba << 10) * 9 / 10) & E1000_FCRTH_RTH;
+ fc->low_water = ((pba << 10) * 8 / 10) & E1000_FCRTL_RTL;
+ break;
+ }
+
+ /* Alignment of Tx data is on an arbitrary byte boundary with the
+ * maximum size per Tx descriptor limited only to the transmit
+ * allocation of the packet buffer minus 96 bytes with an upper
+ * limit of 24KB due to receive synchronization limitations.
+ */
+ adapter->tx_fifo_limit = min_t(u32, ((er32(PBA) >> 16) << 10) - 96,
+ 24 << 10);
+
+ /* Disable Adaptive Interrupt Moderation if 2 full packets cannot
+ * fit in receive buffer.
+ */
+ if (adapter->itr_setting & 0x3) {
+ if ((adapter->max_frame_size * 2) > (pba << 10)) {
+ if (!(adapter->flags2 & FLAG2_DISABLE_AIM)) {
+ dev_info(pci_dev_to_dev(adapter->pdev),
+ "Interrupt Throttle Rate off\n");
+ adapter->flags2 |= FLAG2_DISABLE_AIM;
+ e1000e_write_itr(adapter, 0);
+ }
+ } else if (adapter->flags2 & FLAG2_DISABLE_AIM) {
+ dev_info(pci_dev_to_dev(adapter->pdev),
+ "Interrupt Throttle Rate on\n");
+ adapter->flags2 &= ~FLAG2_DISABLE_AIM;
+ adapter->itr = 20000;
+ e1000e_write_itr(adapter, adapter->itr);
+ }
+ }
+
+ if (hw->mac.type >= e1000_pch_spt)
+ e1000_flush_desc_rings(adapter);
+ /* Allow time for pending master requests to run */
+ mac->ops.reset_hw(hw);
+
+ /* For parts with AMT enabled, let the firmware know
+ * that the network interface is in control
+ */
+ if (adapter->flags & FLAG_HAS_AMT)
+ e1000e_get_hw_control(adapter);
+#ifdef DYNAMIC_LTR_SUPPORT
+
+ adapter->c10_pba_bytes = er32(PBA) & 0x1F;
+ adapter->c10_pba_bytes <<= 10;
+#endif /* DYNAMIC_LTR_SUPPORT */
+
+ ew32(WUC, 0);
+
+ if (mac->ops.init_hw(hw))
+ e_err("Hardware Error\n");
+
+#if defined(NETIF_F_HW_VLAN_TX) || defined(NETIF_F_HW_VLAN_CTAG_TX)
+ e1000_update_mng_vlan(adapter);
+
+ /* Enable h/w to recognize an 802.1Q VLAN Ethernet packet */
+ ew32(VET, ETH_P_8021Q);
+
+#endif
+ e1000e_reset_adaptive(hw);
+
+#ifdef HAVE_HW_TIME_STAMP
+ /* restore systim and hwtstamp settings */
+ e1000e_systim_reset(adapter);
+#endif
+
+ /* Set EEE advertisement as appropriate */
+ if (adapter->flags2 & FLAG2_HAS_EEE) {
+ s32 ret_val;
+ u16 adv_addr;
+
+ switch (hw->phy.type) {
+ case e1000_phy_82579:
+ adv_addr = I82579_EEE_ADVERTISEMENT;
+ break;
+ case e1000_phy_i217:
+ adv_addr = I217_EEE_ADVERTISEMENT;
+ break;
+ default:
+ dev_err(pci_dev_to_dev(adapter->pdev),
+ "Invalid PHY type setting EEE advertisement\n");
+ return;
+ }
+
+ ret_val = hw->phy.ops.acquire(hw);
+ if (ret_val) {
+ dev_err(pci_dev_to_dev(adapter->pdev),
+ "EEE advertisement - unable to acquire PHY\n");
+ return;
+ }
+
+ /* Set EEE advertising to either default or
+ * whatever the user has defined using ethtool
+ */
+ e1000_write_emi_reg_locked(hw, adv_addr, adapter->eee_advert);
+
+ hw->phy.ops.release(hw);
+ }
+
+ if (!netif_running(adapter->netdev) &&
+ !test_bit(__E1000_TESTING, &adapter->state))
+ e1000_power_down_phy(adapter);
+
+ e1000_get_phy_info(hw);
+
+ if ((adapter->flags & FLAG_HAS_SMART_POWER_DOWN) &&
+ !(adapter->flags & FLAG_SMART_POWER_DOWN)) {
+ u16 phy_data = 0;
+ /* speed up time to link by disabling smart power down, ignore
+ * the return value of this function because there is nothing
+ * different we would do if it failed
+ */
+ e1e_rphy(hw, IGP02E1000_PHY_POWER_MGMT, &phy_data);
+ phy_data &= ~IGP02E1000_PM_SPD;
+ e1e_wphy(hw, IGP02E1000_PHY_POWER_MGMT, phy_data);
+ }
+ if (hw->mac.type >= e1000_pch_spt && adapter->int_mode == 0) {
+ u32 reg;
+
+ /* Fextnvm7 @ 0xe4[2] = 1 */
+ reg = er32(FEXTNVM7);
+ reg |= E1000_FEXTNVM7_SIDE_CLK_UNGATE;
+ ew32(FEXTNVM7, reg);
+ /* Fextnvm9 @ 0x5bb4[13:12] = 11 */
+ reg = er32(FEXTNVM9);
+ reg |= E1000_FEXTNVM9_IOSFSB_CLKGATE_DIS |
+ E1000_FEXTNVM9_IOSFSB_CLKREQ_DIS;
+ ew32(FEXTNVM9, reg);
+ }
+
+}
+
+/**
+ * e1000e_trigger_lsc - trigger an LSC interrupt
+ * @adapter:
+ *
+ * Fire a link status change interrupt to start the watchdog.
+ **/
+static void e1000e_trigger_lsc(struct e1000_adapter *adapter)
+{
+ struct e1000_hw *hw = &adapter->hw;
+
+ if (adapter->msix_entries)
+ ew32(ICS, E1000_ICS_OTHER);
+ else
+ ew32(ICS, E1000_ICS_LSC);
+}
+
+void e1000e_up(struct e1000_adapter *adapter)
+{
+ /* hardware has been reset, we need to reload some things */
+ e1000_configure(adapter);
+
+ clear_bit(__E1000_DOWN, &adapter->state);
+
+ if (adapter->msix_entries)
+ e1000_configure_msix(adapter);
+ e1000_irq_enable(adapter);
+
+ netif_start_queue(adapter->netdev);
+
+ e1000e_trigger_lsc(adapter);
+}
+
+static void e1000e_flush_descriptors(struct e1000_adapter *adapter)
+{
+ struct e1000_hw *hw = &adapter->hw;
+
+ if (!(adapter->flags2 & FLAG2_DMA_BURST))
+ return;
+
+ /* flush pending descriptor writebacks to memory */
+ ew32(TIDV, adapter->tx_int_delay | E1000_TIDV_FPD);
+ ew32(RDTR, adapter->rx_int_delay | E1000_RDTR_FPD);
+
+ /* execute the writes immediately */
+ e1e_flush();
+
+ /* due to rare timing issues, write to TIDV/RDTR again to ensure the
+ * write is successful
+ */
+ ew32(TIDV, adapter->tx_int_delay | E1000_TIDV_FPD);
+ ew32(RDTR, adapter->rx_int_delay | E1000_RDTR_FPD);
+
+ /* execute the writes immediately */
+ e1e_flush();
+}
+
+#ifdef HAVE_NDO_GET_STATS64
+static void e1000e_update_stats(struct e1000_adapter *adapter);
+
+#endif
+/**
+ * e1000e_down - quiesce the device and optionally reset the hardware
+ * @adapter: board private structure
+ * @reset: boolean flag to reset the hardware or not
+ */
+void e1000e_down(struct e1000_adapter *adapter, bool reset)
+{
+ struct net_device *netdev = adapter->netdev;
+ struct e1000_hw *hw = &adapter->hw;
+ u32 tctl, rctl;
+
+ /* signal that we're down so the interrupt handler does not
+ * reschedule our watchdog timer
+ */
+ set_bit(__E1000_DOWN, &adapter->state);
+
+ netif_carrier_off(netdev);
+#ifdef DYNAMIC_LTR_SUPPORT
+ adapter->c10_demote_ltr = false;
+ e1000_demote_ltr(hw, false, false);
+#endif /* DYNAMIC_LTR_SUPPORT */
+
+ /* disable receives in the hardware */
+ rctl = er32(RCTL);
+ if (!(adapter->flags2 & FLAG2_NO_DISABLE_RX))
+ ew32(RCTL, rctl & ~E1000_RCTL_EN);
+ /* flush and sleep below */
+
+ netif_stop_queue(netdev);
+
+ /* disable transmits in the hardware */
+ tctl = er32(TCTL);
+ tctl &= ~E1000_TCTL_EN;
+ ew32(TCTL, tctl);
+
+ /* flush both disables and wait for them to finish */
+ e1e_flush();
+ usleep_range(10000, 11000);
+ e1000_irq_disable(adapter);
+
+#ifdef CONFIG_E1000E_NAPI
+ napi_synchronize(&adapter->napi);
+#endif /* CONFIG_E1000E_NAPI */
+
+ del_timer_sync(&adapter->watchdog_timer);
+ del_timer_sync(&adapter->phy_info_timer);
+
+#ifdef HAVE_NDO_GET_STATS64
+ spin_lock(&adapter->stats64_lock);
+ e1000e_update_stats(adapter);
+ spin_unlock(&adapter->stats64_lock);
+
+#endif
+ e1000e_flush_descriptors(adapter);
+
+ adapter->link_speed = 0;
+ adapter->link_duplex = 0;
+
+ /* Disable Si errata workaround on PCHx for jumbo frame flow */
+ if ((hw->mac.type >= e1000_pch2lan) &&
+ (adapter->netdev->mtu > ETH_DATA_LEN) &&
+ e1000_lv_jumbo_workaround_ich8lan(hw, false))
+ e_dbg("failed to disable jumbo frame workaround mode\n");
+
+#ifdef HAVE_PCI_ERS
+ if (!pci_channel_offline(adapter->pdev)) {
+ if (reset)
+ e1000e_reset(adapter);
+ else if (hw->mac.type >= e1000_pch_spt)
+ e1000_flush_desc_rings(adapter);
+ }
+#else
+ if (reset)
+ e1000e_reset(adapter);
+ else if (hw->mac.type >= e1000_pch_spt)
+ e1000_flush_desc_rings(adapter);
+#endif
+ e1000_clean_tx_ring(adapter->tx_ring);
+ e1000_clean_rx_ring(adapter->rx_ring);
+}
+
+void e1000e_reinit_locked(struct e1000_adapter *adapter)
+{
+ might_sleep();
+ while (test_and_set_bit(__E1000_RESETTING, &adapter->state))
+ usleep_range(1000, 1100);
+ e1000e_down(adapter, true);
+ e1000e_up(adapter);
+ clear_bit(__E1000_RESETTING, &adapter->state);
+}
+
+#ifdef HAVE_HW_TIME_STAMP
+/**
+ * e1000e_sanitize_systim - sanitize raw cycle counter reads
+ * @hw: pointer to the HW structure
+ * @systim: PHC time value read, sanitized and returned
+ * @sts: structure to hold system time before and after reading SYSTIML,
+ * may be NULL
+ *
+ * Errata for 82574/82583 possible bad bits read from SYSTIMH/L:
+ * check to see that the time is incrementing at a reasonable
+ * rate and is a multiple of incvalue.
+ **/
+
+static u64 e1000e_sanitize_systim(struct e1000_hw *hw, u64 systim,
+ struct ptp_system_timestamp *sts)
+{
+ u64 time_delta, rem, temp;
+ u64 systim_next;
+ u32 incvalue;
+ int i;
+
+ incvalue = er32(TIMINCA) & E1000_TIMINCA_INCVALUE_MASK;
+ for (i = 0; i < E1000_MAX_82574_SYSTIM_REREADS; i++) {
+ /* latch SYSTIMH on read of SYSTIML */
+ ptp_read_system_prets(sts);
+ systim_next = (u64)er32(SYSTIML);
+ ptp_read_system_postts(sts);
+ systim_next |= (u64)er32(SYSTIMH) << 32;
+
+ time_delta = systim_next - systim;
+ temp = time_delta;
+ /* VMWare users have seen incvalue of zero, don't div / 0 */
+ rem = incvalue ? do_div(temp, incvalue) : (time_delta != 0);
+
+ systim = systim_next;
+
+ if ((time_delta < E1000_82574_SYSTIM_EPSILON) && (rem == 0))
+ break;
+ }
+
+ return systim;
+}
+#endif /* HAVE_HW_TIME_STAMP */
+
+#ifdef HAVE_HW_TIME_STAMP
+/**
+ * e1000e_read_systim - read SYSTIM register
+ * @adapter: board private structure
+ * @sts: structure which will contain system time before and after reading
+ * SYSTIML, may be NULL
+ **/
+
+u64 e1000e_read_systim(struct e1000_adapter *adapter,
+ struct ptp_system_timestamp *sts)
+{
+ struct e1000_hw *hw = &adapter->hw;
+ u32 systimel, systimel_2, systimeh;
+ u64 systim;
+ /* SYSTIMH latching upon SYSTIML read does not work well.
+ * This means that if SYSTIML overflows after we read it but before
+ * we read SYSTIMH, the value of SYSTIMH has been incremented and we
+ * will experience a huge non linear increment in the systime value
+ * to fix that we test for overflow and if true, we re-read systime.
+ */
+ ptp_read_system_prets(sts);
+ systimel = er32(SYSTIML);
+ ptp_read_system_postts(sts);
+ systimeh = er32(SYSTIMH);
+ /* Is systimel is so large that overflow is possible? */
+ if (systimel >= (u32)0xffffffff - E1000_TIMINCA_INCVALUE_MASK) {
+ ptp_read_system_prets(sts);
+ systimel_2 = er32(SYSTIML);
+ ptp_read_system_postts(sts);
+ if (systimel > systimel_2) {
+ /* There was an overflow, read again SYSTIMH, and use
+ * systimel_2
+ */
+ systimeh = er32(SYSTIMH);
+ systimel = systimel_2;
+ }
+ }
+ systim = (u64)systimel;
+ systim |= (u64)systimeh << 32;
+
+ if (adapter->flags2 & FLAG2_CHECK_SYSTIM_OVERFLOW)
+ systim = e1000e_sanitize_systim(hw, systim, sts);
+
+ return systim;
+}
+
+/**
+ * e1000e_cyclecounter_read - read raw cycle counter (user by time counter)
+ * @cc: cyclecounter structre
+ **/
+static u64 e1000e_cyclecounter_read(const struct cyclecounter *cc)
+{
+ struct e1000_adapter *adapter = container_of(cc, struct e1000_adapter,
+ cc);
+ return e1000e_read_systim(adapter, NULL);
+}
+#endif /* HAVE_HW_TIME_STAMP */
+
+/**
+ * e1000_sw_init - Initialize general software structures (struct e1000_adapter)
+ * @adapter: board private structure to initialize
+ *
+ * e1000_sw_init initializes the Adapter private data structure.
+ * Fields are initialized based on PCI device information and
+ * OS network device settings (MTU size).
+ **/
+#ifdef HAVE_CONFIG_HOTPLUG
+static int __devinit e1000_sw_init(struct e1000_adapter *adapter)
+#else
+static int e1000_sw_init(struct e1000_adapter *adapter)
+#endif
+{
+ struct net_device *netdev = adapter->netdev;
+
+ adapter->rx_buffer_len = VLAN_ETH_FRAME_LEN + ETH_FCS_LEN;
+ adapter->rx_ps_bsize0 = 128;
+ adapter->max_frame_size = netdev->mtu + VLAN_ETH_HLEN + ETH_FCS_LEN;
+ adapter->min_frame_size = ETH_ZLEN + ETH_FCS_LEN;
+ adapter->tx_ring_count = E1000_DEFAULT_TXD;
+ adapter->rx_ring_count = E1000_DEFAULT_RXD;
+
+#ifdef HAVE_NDO_GET_STATS64
+ spin_lock_init(&adapter->stats64_lock);
+
+#endif /* HAVE_NDO_GET_STATS64 */
+ e1000e_set_interrupt_capability(adapter);
+
+ if (e1000_alloc_queues(adapter))
+ return -ENOMEM;
+
+#ifdef HAVE_HW_TIME_STAMP
+ /* Setup hardware time stamping cyclecounter */
+ if (adapter->flags & FLAG_HAS_HW_TIMESTAMP) {
+ adapter->cc.read = e1000e_cyclecounter_read;
+#ifdef HAVE_INCLUDE_LINUX_TIMECOUNTER_H
+ adapter->cc.mask = CYCLECOUNTER_MASK(64);
+#else
+ adapter->cc.mask = CLOCKSOURCE_MASK(64);
+#endif
+ adapter->cc.mult = 1;
+ /* cc.shift set in e1000e_get_base_tininca() */
+
+ spin_lock_init(&adapter->systim_lock);
+ INIT_WORK(&adapter->tx_hwtstamp_work, e1000e_tx_hwtstamp_work);
+ }
+#endif /* HAVE_HW_TIME_STAMP */
+
+ /* Explicitly disable IRQ since the NIC can be in any state. */
+ e1000_irq_disable(adapter);
+
+ set_bit(__E1000_DOWN, &adapter->state);
+ return 0;
+}
+
+/**
+ * e1000_intr_msi_test - Interrupt Handler
+ * @irq: interrupt number
+ * @data: pointer to a network interface device structure
+ **/
+static irqreturn_t e1000_intr_msi_test(int __always_unused irq, void *data)
+{
+ struct net_device *netdev = data;
+ struct e1000_adapter *adapter = netdev_priv(netdev);
+ struct e1000_hw *hw = &adapter->hw;
+ u32 icr = er32(ICR);
+
+ e_dbg("icr is %08X\n", icr);
+ if (icr & E1000_ICR_RXSEQ) {
+ adapter->flags &= ~FLAG_MSI_TEST_FAILED;
+ /* Force memory writes to complete before acknowledging the
+ * interrupt is handled.
+ */
+ wmb();
+ }
+
+ return IRQ_HANDLED;
+}
+
+/**
+ * e1000_test_msi_interrupt - Returns 0 for successful test
+ * @adapter: board private struct
+ *
+ * code flow taken from tg3.c
+ **/
+static int e1000_test_msi_interrupt(struct e1000_adapter *adapter)
+{
+ struct net_device *netdev = adapter->netdev;
+ struct e1000_hw *hw = &adapter->hw;
+ int err;
+
+ /* poll_enable hasn't been called yet, so don't need disable */
+ /* clear any pending events */
+ er32(ICR);
+
+ /* free the real vector and request a test handler */
+ e1000_free_irq(adapter);
+ e1000e_reset_interrupt_capability(adapter);
+
+ /* Assume that the test fails, if it succeeds then the test
+ * MSI irq handler will unset this flag
+ */
+ adapter->flags |= FLAG_MSI_TEST_FAILED;
+
+ err = pci_enable_msi(adapter->pdev);
+ if (err)
+ goto msi_test_failed;
+
+ err = request_irq(adapter->pdev->irq, e1000_intr_msi_test, 0,
+ netdev->name, netdev);
+ if (err) {
+ pci_disable_msi(adapter->pdev);
+ goto msi_test_failed;
+ }
+
+ /* Force memory writes to complete before enabling and firing an
+ * interrupt.
+ */
+ wmb();
+
+ e1000_irq_enable(adapter);
+
+ /* fire an unusual interrupt on the test handler */
+ ew32(ICS, E1000_ICS_RXSEQ);
+ e1e_flush();
+ msleep(100);
+
+ e1000_irq_disable(adapter);
+
+ rmb(); /* read flags after interrupt has been fired */
+
+ if (adapter->flags & FLAG_MSI_TEST_FAILED) {
+ adapter->int_mode = E1000E_INT_MODE_LEGACY;
+ e_info("MSI interrupt test failed, using legacy interrupt.\n");
+ } else {
+ e_dbg("MSI interrupt test succeeded!\n");
+ }
+
+ free_irq(adapter->pdev->irq, netdev);
+ pci_disable_msi(adapter->pdev);
+
+msi_test_failed:
+ e1000e_set_interrupt_capability(adapter);
+ return e1000_request_irq(adapter);
+}
+
+/**
+ * e1000_test_msi - Returns 0 if MSI test succeeds or INTx mode is restored
+ * @adapter: board private struct
+ *
+ * code flow taken from tg3.c, called with e1000 interrupts disabled.
+ **/
+static int e1000_test_msi(struct e1000_adapter *adapter)
+{
+ int err;
+ u16 pci_cmd;
+
+ if (!(adapter->flags & FLAG_MSI_ENABLED))
+ return 0;
+
+ /* disable SERR in case the MSI write causes a master abort */
+ pci_read_config_word(adapter->pdev, PCI_COMMAND, &pci_cmd);
+ if (pci_cmd & PCI_COMMAND_SERR)
+ pci_write_config_word(adapter->pdev, PCI_COMMAND,
+ pci_cmd & ~PCI_COMMAND_SERR);
+
+ err = e1000_test_msi_interrupt(adapter);
+
+ /* re-enable SERR */
+ if (pci_cmd & PCI_COMMAND_SERR) {
+ pci_read_config_word(adapter->pdev, PCI_COMMAND, &pci_cmd);
+ pci_cmd |= PCI_COMMAND_SERR;
+ pci_write_config_word(adapter->pdev, PCI_COMMAND, pci_cmd);
+ }
+
+ return err;
+}
+
+/**
+ * e1000e_open - Called when a network interface is made active
+ * @netdev: network interface device structure
+ *
+ * Returns 0 on success, negative value on failure
+ *
+ * The open entry point is called when a network interface is made
+ * active by the system (IFF_UP). At this point all resources needed
+ * for transmit and receive operations are allocated, the interrupt
+ * handler is registered with the OS, the watchdog timer is started,
+ * and the stack is notified that the interface is ready.
+ **/
+int e1000e_open(struct net_device *netdev)
+{
+ struct e1000_adapter *adapter = netdev_priv(netdev);
+ struct e1000_hw *hw = &adapter->hw;
+ struct pci_dev *pdev = adapter->pdev;
+ int err;
+
+ adapter->pdev = pdev;
+ /* disallow open during test */
+ if (test_bit(__E1000_TESTING, &adapter->state))
+ return -EBUSY;
+
+ pm_runtime_get_sync(pci_dev_to_dev(pdev));
+
+ netif_carrier_off(netdev);
+
+ /* allocate transmit descriptors */
+ err = e1000e_setup_tx_resources(adapter->tx_ring);
+ if (err)
+ goto err_setup_tx;
+
+ /* allocate receive descriptors */
+ err = e1000e_setup_rx_resources(adapter->rx_ring);
+ if (err)
+ goto err_setup_rx;
+
+ /* If AMT is enabled, let the firmware know that the network
+ * interface is now open and reset the part to a known state.
+ */
+ if (adapter->flags & FLAG_HAS_AMT) {
+ e1000e_get_hw_control(adapter);
+ e1000e_reset(adapter);
+ }
+
+ e1000e_power_up_phy(adapter);
+
+#if defined(NETIF_F_HW_VLAN_TX) || defined(NETIF_F_HW_VLAN_CTAG_TX)
+ adapter->mng_vlan_id = E1000_MNG_VLAN_NONE;
+ if ((adapter->hw.mng_cookie.status & E1000_MNG_DHCP_COOKIE_STATUS_VLAN))
+ e1000_update_mng_vlan(adapter);
+
+#endif
+ /* DMA latency requirement to workaround jumbo issue */
+#ifdef HAVE_PM_QOS_REQUEST_LIST_NEW
+ cpu_latency_qos_add_request(&adapter->pm_qos_req, PM_QOS_DEFAULT_VALUE);
+#elif defined(HAVE_PM_QOS_REQUEST_LIST)
+ pm_qos_add_request(&adapter->pm_qos_req, PM_QOS_CPU_DMA_LATENCY,
+ PM_QOS_DEFAULT_VALUE);
+#else
+ pm_qos_add_requirement(PM_QOS_CPU_DMA_LATENCY, adapter->netdev->name,
+ PM_QOS_DEFAULT_VALUE);
+#endif
+
+ /* before we allocate an interrupt, we must be ready to handle it.
+ * Setting DEBUG_SHIRQ in the kernel makes it fire an interrupt
+ * as soon as we call pci_request_irq, so we have to setup our
+ * clean_rx handler before we do so.
+ */
+ e1000_configure(adapter);
+
+ err = e1000_request_irq(adapter);
+ if (err)
+ goto err_req_irq;
+
+ /* Work around PCIe errata with MSI interrupts causing some chipsets to
+ * ignore e1000e MSI messages, which means we need to test our MSI
+ * interrupt now
+ */
+ if (adapter->int_mode != E1000E_INT_MODE_LEGACY) {
+ err = e1000_test_msi(adapter);
+ if (err) {
+ e_err("Interrupt allocation failed\n");
+ goto err_req_irq;
+ }
+ }
+
+ /* From here on the code is the same as e1000e_up() */
+ clear_bit(__E1000_DOWN, &adapter->state);
+
+#ifdef CONFIG_E1000E_NAPI
+ napi_enable(&adapter->napi);
+#endif
+
+ e1000_irq_enable(adapter);
+
+ adapter->tx_hang_recheck = false;
+ netif_start_queue(netdev);
+
+ hw->mac.get_link_status = true;
+ pm_runtime_put(pci_dev_to_dev(pdev));
+
+ e1000e_trigger_lsc(adapter);
+
+ return 0;
+
+err_req_irq:
+#ifdef HAVE_PM_QOS_REQUEST_LIST_NEW
+ cpu_latency_qos_remove_request(&adapter->pm_qos_req);
+#elif defined(HAVE_PM_QOS_REQUEST_LIST)
+ pm_qos_remove_request(&adapter->pm_qos_req);
+#else
+ pm_qos_remove_requirement(PM_QOS_CPU_DMA_LATENCY,
+ adapter->netdev->name);
+#endif
+ e1000e_release_hw_control(adapter);
+ e1000_power_down_phy(adapter);
+ e1000e_free_rx_resources(adapter->rx_ring);
+err_setup_rx:
+ e1000e_free_tx_resources(adapter->tx_ring);
+err_setup_tx:
+ e1000e_reset(adapter);
+ pm_runtime_put_sync(pci_dev_to_dev(pdev));
+
+ return err;
+}
+
+/**
+ * e1000e_close - Disables a network interface
+ * @netdev: network interface device structure
+ *
+ * Returns 0, this is not allowed to fail
+ *
+ * The close entry point is called when an interface is de-activated
+ * by the OS. The hardware is still under the drivers control, but
+ * needs to be disabled. A global MAC reset is issued to stop the
+ * hardware, and all transmit and receive resources are freed.
+ **/
+int e1000e_close(struct net_device *netdev)
+{
+ struct e1000_adapter *adapter = netdev_priv(netdev);
+ struct pci_dev *pdev = adapter->pdev;
+ int count = E1000_CHECK_RESET_COUNT;
+
+ adapter->pdev = pdev;
+
+ while (test_bit(__E1000_RESETTING, &adapter->state) && count--)
+ usleep_range(10000, 11000);
+
+ WARN_ON(test_bit(__E1000_RESETTING, &adapter->state));
+
+ pm_runtime_get_sync(pci_dev_to_dev(pdev));
+
+ if (netif_device_present(netdev)) {
+ e1000e_down(adapter, true);
+ e1000_free_irq(adapter);
+
+ /* Link status message must follow this format */
+ netdev_info(netdev, "NIC Link is Down\n");
+ }
+#ifdef CONFIG_E1000E_NAPI
+ napi_disable(&adapter->napi);
+#endif /* CONFIG_E1000E_NAPI */
+
+ e1000e_free_tx_resources(adapter->tx_ring);
+ e1000e_free_rx_resources(adapter->rx_ring);
+
+#if defined(NETIF_F_HW_VLAN_TX) || defined(NETIF_F_HW_VLAN_CTAG_TX)
+ /* kill manageability vlan ID if supported, but not if a vlan with
+ * the same ID is registered on the host OS (let 8021q kill it)
+ */
+#ifdef HAVE_VLAN_RX_REGISTER
+ if ((adapter->hw.mng_cookie.status &
+ E1000_MNG_DHCP_COOKIE_STATUS_VLAN) &&
+ !(adapter->vlgrp &&
+ vlan_group_get_device(adapter->vlgrp, adapter->mng_vlan_id)))
+#else /* HAVE_VLAN_RX_REGISTER */
+ if (adapter->hw.mng_cookie.status & E1000_MNG_DHCP_COOKIE_STATUS_VLAN)
+#endif /* HAVE_VLAN_RX_REGISTER */
+#ifdef NETIF_F_HW_VLAN_CTAG_RX
+ e1000_vlan_rx_kill_vid(netdev, htons(ETH_P_8021Q),
+ adapter->mng_vlan_id);
+#else
+ e1000_vlan_rx_kill_vid(netdev, adapter->mng_vlan_id);
+#endif
+
+#endif /* NETIF_F_HW_VLAN_TX || NETIF_F_HW_VLAN_CTAG_TX */
+ /* If AMT is enabled, let the firmware know that the network
+ * interface is now closed
+ */
+ if ((adapter->flags & FLAG_HAS_AMT) &&
+ !test_bit(__E1000_TESTING, &adapter->state))
+ e1000e_release_hw_control(adapter);
+
+#ifdef HAVE_PM_QOS_REQUEST_LIST_NEW
+ cpu_latency_qos_remove_request(&adapter->pm_qos_req);
+#elif defined(HAVE_PM_QOS_REQUEST_LIST)
+ pm_qos_remove_request(&adapter->pm_qos_req);
+#else
+ pm_qos_remove_requirement(PM_QOS_CPU_DMA_LATENCY,
+ adapter->netdev->name);
+#endif
+
+ pm_runtime_put_sync(pci_dev_to_dev(pdev));
+
+ return 0;
+}
+
+/**
+ * e1000_set_mac - Change the Ethernet Address of the NIC
+ * @netdev: network interface device structure
+ * @p: pointer to an address structure
+ *
+ * Returns 0 on success, negative on failure
+ **/
+static int e1000_set_mac(struct net_device *netdev, void *p)
+{
+ struct e1000_adapter *adapter = netdev_priv(netdev);
+ struct e1000_hw *hw = &adapter->hw;
+ struct sockaddr *addr = p;
+
+ if (!is_valid_ether_addr((unsigned char *)(addr->sa_data)))
+ return -EADDRNOTAVAIL;
+
+ memcpy(netdev->dev_addr, addr->sa_data, netdev->addr_len);
+ memcpy(adapter->hw.mac.addr, addr->sa_data, netdev->addr_len);
+
+ hw->mac.ops.rar_set(&adapter->hw, adapter->hw.mac.addr, 0);
+
+ if (adapter->flags & FLAG_RESET_OVERWRITES_LAA) {
+ /* activate the work around */
+ e1000e_set_laa_state_82571(&adapter->hw, 1);
+
+ /* Hold a copy of the LAA in RAR[14] This is done so that
+ * between the time RAR[0] gets clobbered and the time it
+ * gets fixed (in e1000_watchdog), the actual LAA is in one
+ * of the RARs and no incoming packets directed to this port
+ * are dropped. Eventually the LAA will be in RAR[0] and
+ * RAR[14]
+ */
+ hw->mac.ops.rar_set(&adapter->hw, adapter->hw.mac.addr,
+ adapter->hw.mac.rar_entry_count - 1);
+ }
+
+ return 0;
+}
+
+/**
+ * e1000e_update_phy_task - work thread to update phy
+ * @work: pointer to our work struct
+ *
+ * this worker thread exists because we must acquire a
+ * semaphore to read the phy, which we could msleep while
+ * waiting for it, and we can't msleep in a timer.
+ **/
+static void e1000e_update_phy_task(struct work_struct *work)
+{
+ struct e1000_adapter *adapter = container_of(work,
+ struct e1000_adapter,
+ update_phy_task);
+ struct e1000_hw *hw = &adapter->hw;
+
+ if (test_bit(__E1000_DOWN, &adapter->state))
+ return;
+
+ e1000_get_phy_info(hw);
+
+ /* Enable EEE on 82579 after link up */
+ if (hw->phy.type >= e1000_phy_82579)
+ e1000_set_eee_pchlan(hw);
+}
+
+/**
+ * e1000_update_phy_info - timre call-back to update PHY info
+ * @t: the struct of the function to call when phy_info_timer expires
+ *
+ * Need to wait a few seconds after link up to get diagnostic information from
+ * the phy
+ **/
+static void e1000_update_phy_info(struct timer_list *t)
+{
+ struct e1000_adapter *adapter = from_timer(adapter, t, phy_info_timer);
+
+ if (test_bit(__E1000_DOWN, &adapter->state))
+ return;
+
+ schedule_work(&adapter->update_phy_task);
+}
+
+/**
+ * e1000e_update_phy_stats - Update the PHY statistics counters
+ * @adapter: board private structure
+ *
+ * Read/clear the upper 16-bit PHY registers and read/accumulate lower
+ **/
+static void e1000e_update_phy_stats(struct e1000_adapter *adapter)
+{
+ struct e1000_hw *hw = &adapter->hw;
+ s32 ret_val;
+ u16 phy_data;
+
+ ret_val = hw->phy.ops.acquire(hw);
+ if (ret_val)
+ return;
+
+ /* A page set is expensive so check if already on desired page.
+ * If not, set to the page with the PHY status registers.
+ */
+ hw->phy.addr = 1;
+ ret_val = e1000e_read_phy_reg_mdic(hw, IGP01E1000_PHY_PAGE_SELECT,
+ &phy_data);
+ if (ret_val)
+ goto release;
+ if (phy_data != (HV_STATS_PAGE << IGP_PAGE_SHIFT)) {
+ ret_val = hw->phy.ops.set_page(hw,
+ HV_STATS_PAGE << IGP_PAGE_SHIFT);
+ if (ret_val)
+ goto release;
+ }
+
+ /* Single Collision Count */
+ hw->phy.ops.read_reg_page(hw, HV_SCC_UPPER, &phy_data);
+ ret_val = hw->phy.ops.read_reg_page(hw, HV_SCC_LOWER, &phy_data);
+ if (!ret_val)
+ adapter->stats.scc += phy_data;
+
+ /* Excessive Collision Count */
+ hw->phy.ops.read_reg_page(hw, HV_ECOL_UPPER, &phy_data);
+ ret_val = hw->phy.ops.read_reg_page(hw, HV_ECOL_LOWER, &phy_data);
+ if (!ret_val)
+ adapter->stats.ecol += phy_data;
+
+ /* Multiple Collision Count */
+ hw->phy.ops.read_reg_page(hw, HV_MCC_UPPER, &phy_data);
+ ret_val = hw->phy.ops.read_reg_page(hw, HV_MCC_LOWER, &phy_data);
+ if (!ret_val)
+ adapter->stats.mcc += phy_data;
+
+ /* Late Collision Count */
+ hw->phy.ops.read_reg_page(hw, HV_LATECOL_UPPER, &phy_data);
+ ret_val = hw->phy.ops.read_reg_page(hw, HV_LATECOL_LOWER, &phy_data);
+ if (!ret_val)
+ adapter->stats.latecol += phy_data;
+
+ /* Collision Count - also used for adaptive IFS */
+ hw->phy.ops.read_reg_page(hw, HV_COLC_UPPER, &phy_data);
+ ret_val = hw->phy.ops.read_reg_page(hw, HV_COLC_LOWER, &phy_data);
+ if (!ret_val)
+ hw->mac.collision_delta = phy_data;
+
+ /* Defer Count */
+ hw->phy.ops.read_reg_page(hw, HV_DC_UPPER, &phy_data);
+ ret_val = hw->phy.ops.read_reg_page(hw, HV_DC_LOWER, &phy_data);
+ if (!ret_val)
+ adapter->stats.dc += phy_data;
+
+ /* Transmit with no CRS */
+ hw->phy.ops.read_reg_page(hw, HV_TNCRS_UPPER, &phy_data);
+ ret_val = hw->phy.ops.read_reg_page(hw, HV_TNCRS_LOWER, &phy_data);
+ if (!ret_val)
+ adapter->stats.tncrs += phy_data;
+
+release:
+ hw->phy.ops.release(hw);
+}
+
+/**
+ * e1000e_update_stats - Update the board statistics counters
+ * @adapter: board private structure
+ **/
+#ifdef HAVE_NDO_GET_STATS64
+static void e1000e_update_stats(struct e1000_adapter *adapter)
+#else
+void e1000e_update_stats(struct e1000_adapter *adapter)
+#endif
+{
+#ifdef HAVE_NETDEV_STATS_IN_NETDEV
+ struct net_device *netdev = adapter->netdev;
+#endif
+ struct e1000_hw *hw = &adapter->hw;
+#ifdef HAVE_PCI_ERS
+ struct pci_dev *pdev = adapter->pdev;
+#endif
+
+ /* Prevent stats update while adapter is being reset, or if the pci
+ * connection is down.
+ */
+ if (adapter->link_speed == 0)
+ return;
+#ifdef HAVE_PCI_ERS
+ if (pci_channel_offline(pdev))
+ return;
+#endif
+
+ adapter->stats.crcerrs += er32(CRCERRS);
+ adapter->stats.gprc += er32(GPRC);
+ adapter->stats.gorc += er32(GORCL);
+ er32(GORCH); /* Clear gorc */
+#ifdef DYNAMIC_LTR_SUPPORT
+ adapter->c10_rx_bytes = adapter->stats.gorc;
+#endif /* DYNAMIC_LTR_SUPPORT */
+ adapter->stats.bprc += er32(BPRC);
+ adapter->stats.mprc += er32(MPRC);
+ adapter->stats.roc += er32(ROC);
+
+#ifdef DYNAMIC_LTR_SUPPORT
+ /* adapter->c10_mpc_count is being updated in IRQ context in the
+ * clean_rx functions. This is only when DYNAMIC_LTR_SUPPORT is
+ * defined, otherwise fall back to updating stats.mpc directly from
+ * the MPC register
+ */
+ adapter->stats.mpc = adapter->c10_mpc_count;
+#else
+ adapter->stats.mpc += er32(MPC);
+#endif /* DYNAMIC_LTR_SUPPORT */
+
+ /* Half-duplex statistics */
+ if (adapter->link_duplex == HALF_DUPLEX) {
+ if (adapter->flags2 & FLAG2_HAS_PHY_STATS) {
+ e1000e_update_phy_stats(adapter);
+ } else {
+ adapter->stats.scc += er32(SCC);
+ adapter->stats.ecol += er32(ECOL);
+ adapter->stats.mcc += er32(MCC);
+ adapter->stats.latecol += er32(LATECOL);
+ adapter->stats.dc += er32(DC);
+
+ hw->mac.collision_delta = er32(COLC);
+
+ if ((hw->mac.type != e1000_82574) &&
+ (hw->mac.type != e1000_82583))
+ adapter->stats.tncrs += er32(TNCRS);
+ }
+ adapter->stats.colc += hw->mac.collision_delta;
+ }
+
+ adapter->stats.xonrxc += er32(XONRXC);
+ adapter->stats.xontxc += er32(XONTXC);
+ adapter->stats.xoffrxc += er32(XOFFRXC);
+ adapter->stats.xofftxc += er32(XOFFTXC);
+ adapter->stats.gptc += er32(GPTC);
+ adapter->stats.gotc += er32(GOTCL);
+ er32(GOTCH); /* Clear gotc */
+ adapter->stats.rnbc += er32(RNBC);
+ adapter->stats.ruc += er32(RUC);
+
+ adapter->stats.mptc += er32(MPTC);
+ adapter->stats.bptc += er32(BPTC);
+
+ /* used for adaptive IFS */
+
+ hw->mac.tx_packet_delta = er32(TPT);
+ adapter->stats.tpt += hw->mac.tx_packet_delta;
+
+ adapter->stats.algnerrc += er32(ALGNERRC);
+ adapter->stats.rxerrc += er32(RXERRC);
+ adapter->stats.cexterr += er32(CEXTERR);
+ adapter->stats.tsctc += er32(TSCTC);
+ adapter->stats.tsctfc += er32(TSCTFC);
+
+ /* Fill out the OS statistics structure */
+#ifdef HAVE_NETDEV_STATS_IN_NETDEV
+ netdev->stats.multicast = adapter->stats.mprc;
+ netdev->stats.collisions = adapter->stats.colc;
+#else
+ adapter->net_stats.multicast = adapter->stats.mprc;
+ adapter->net_stats.collisions = adapter->stats.colc;
+#endif
+
+ /* Rx Errors */
+
+ /* RLEC on some newer hardware can be incorrect so build
+ * our own version based on RUC and ROC
+ */
+#ifdef HAVE_NETDEV_STATS_IN_NETDEV
+ netdev->stats.rx_errors = adapter->stats.rxerrc +
+#else
+ adapter->net_stats.rx_errors = adapter->stats.rxerrc +
+#endif
+ adapter->stats.crcerrs + adapter->stats.algnerrc +
+ adapter->stats.ruc + adapter->stats.roc + adapter->stats.cexterr;
+#ifdef HAVE_NETDEV_STATS_IN_NETDEV
+ netdev->stats.rx_length_errors = adapter->stats.ruc +
+ adapter->stats.roc;
+ netdev->stats.rx_crc_errors = adapter->stats.crcerrs;
+ netdev->stats.rx_frame_errors = adapter->stats.algnerrc;
+ netdev->stats.rx_missed_errors = adapter->stats.mpc;
+#else
+ adapter->net_stats.rx_length_errors = adapter->stats.ruc +
+ adapter->stats.roc;
+ adapter->net_stats.rx_crc_errors = adapter->stats.crcerrs;
+ adapter->net_stats.rx_frame_errors = adapter->stats.algnerrc;
+ adapter->net_stats.rx_missed_errors = adapter->stats.mpc;
+#endif
+
+ /* Tx Errors */
+#ifdef HAVE_NETDEV_STATS_IN_NETDEV
+ netdev->stats.tx_errors = adapter->stats.ecol + adapter->stats.latecol;
+ netdev->stats.tx_aborted_errors = adapter->stats.ecol;
+ netdev->stats.tx_window_errors = adapter->stats.latecol;
+ netdev->stats.tx_carrier_errors = adapter->stats.tncrs;
+#else
+ adapter->net_stats.tx_errors = adapter->stats.ecol +
+ adapter->stats.latecol;
+ adapter->net_stats.tx_aborted_errors = adapter->stats.ecol;
+ adapter->net_stats.tx_window_errors = adapter->stats.latecol;
+ adapter->net_stats.tx_carrier_errors = adapter->stats.tncrs;
+#endif
+
+ /* Tx Dropped needs to be maintained elsewhere */
+
+ /* Management Stats */
+ adapter->stats.mgptc += er32(MGTPTC);
+ adapter->stats.mgprc += er32(MGTPRC);
+ adapter->stats.mgpdc += er32(MGTPDC);
+
+ /* Correctable ECC Errors */
+ if (hw->mac.type >= e1000_pch_lpt) {
+ u32 pbeccsts = er32(PBECCSTS);
+
+ adapter->corr_errors +=
+ pbeccsts & E1000_PBECCSTS_CORR_ERR_CNT_MASK;
+ adapter->uncorr_errors +=
+ (pbeccsts & E1000_PBECCSTS_UNCORR_ERR_CNT_MASK) >>
+ E1000_PBECCSTS_UNCORR_ERR_CNT_SHIFT;
+ }
+}
+
+#ifdef SIOCGMIIPHY
+/**
+ * e1000_phy_read_status - Update the PHY register status snapshot
+ * @adapter: board private structure
+ **/
+static void e1000_phy_read_status(struct e1000_adapter *adapter)
+{
+ struct e1000_hw *hw = &adapter->hw;
+ struct e1000_phy_regs *phy = &adapter->phy_regs;
+
+ if (!pm_runtime_suspended((pci_dev_to_dev(adapter->pdev))->parent) &&
+ (er32(STATUS) & E1000_STATUS_LU) &&
+ (adapter->hw.phy.media_type == e1000_media_type_copper)) {
+ int ret_val;
+
+ ret_val = e1e_rphy(hw, MII_BMCR, &phy->bmcr);
+ ret_val |= e1e_rphy(hw, MII_BMSR, &phy->bmsr);
+ ret_val |= e1e_rphy(hw, MII_ADVERTISE, &phy->advertise);
+ ret_val |= e1e_rphy(hw, MII_LPA, &phy->lpa);
+ ret_val |= e1e_rphy(hw, MII_EXPANSION, &phy->expansion);
+ ret_val |= e1e_rphy(hw, MII_CTRL1000, &phy->ctrl1000);
+ ret_val |= e1e_rphy(hw, MII_STAT1000, &phy->stat1000);
+ ret_val |= e1e_rphy(hw, MII_ESTATUS, &phy->estatus);
+ if (ret_val)
+ e_warn("Error reading PHY register\n");
+ } else {
+ /* Do not read PHY registers if link is not up
+ * Set values to typical power-on defaults
+ */
+ phy->bmcr = (BMCR_SPEED1000 | BMCR_ANENABLE | BMCR_FULLDPLX);
+ phy->bmsr = (BMSR_100FULL | BMSR_100HALF | BMSR_10FULL |
+ BMSR_10HALF | BMSR_ESTATEN | BMSR_ANEGCAPABLE |
+ BMSR_ERCAP);
+ phy->advertise = (ADVERTISE_PAUSE_ASYM | ADVERTISE_PAUSE_CAP |
+ ADVERTISE_ALL | ADVERTISE_CSMA);
+ phy->lpa = 0;
+ phy->expansion = EXPANSION_ENABLENPAGE;
+ phy->ctrl1000 = ADVERTISE_1000FULL;
+ phy->stat1000 = 0;
+ phy->estatus = (ESTATUS_1000_TFULL | ESTATUS_1000_THALF);
+ }
+}
+
+#endif /* SIOCGMIIPHY */
+static void e1000_print_link_info(struct e1000_adapter *adapter)
+{
+ struct e1000_hw *hw = &adapter->hw;
+ u32 ctrl = er32(CTRL);
+
+ /* Link status message must follow this format for user tools */
+ netdev_info(adapter->netdev,
+ "NIC Link is Up %d Mbps %s Duplex, Flow Control: %s\n",
+ adapter->link_speed,
+ adapter->link_duplex == FULL_DUPLEX ? "Full" : "Half",
+ (ctrl & E1000_CTRL_TFCE) &&
+ (ctrl & E1000_CTRL_RFCE) ? "Rx/Tx" :
+ (ctrl & E1000_CTRL_RFCE) ? "Rx" :
+ (ctrl & E1000_CTRL_TFCE) ? "Tx" : "None");
+}
+
+static bool e1000e_has_link(struct e1000_adapter *adapter)
+{
+ struct e1000_hw *hw = &adapter->hw;
+ bool link_active = false;
+ s32 ret_val = 0;
+
+ /* get_link_status is set on LSC (link status) interrupt or
+ * Rx sequence error interrupt. get_link_status will stay
+ * false until the check_for_link establishes link
+ * for copper adapters ONLY
+ */
+ switch (hw->phy.media_type) {
+ case e1000_media_type_copper:
+ if (hw->mac.get_link_status) {
+ ret_val = hw->mac.ops.check_for_link(hw);
+ link_active = !hw->mac.get_link_status;
+ } else {
+ link_active = true;
+ }
+ break;
+ case e1000_media_type_fiber:
+ ret_val = hw->mac.ops.check_for_link(hw);
+ link_active = !!(er32(STATUS) & E1000_STATUS_LU);
+ break;
+ case e1000_media_type_internal_serdes:
+ ret_val = hw->mac.ops.check_for_link(hw);
+ link_active = adapter->hw.mac.serdes_has_link;
+ break;
+ default:
+ case e1000_media_type_unknown:
+ break;
+ }
+
+ if ((ret_val == E1000_ERR_PHY) && (hw->phy.type == e1000_phy_igp_3) &&
+ (er32(CTRL) & E1000_PHY_CTRL_GBE_DISABLE)) {
+ /* See e1000_kmrn_lock_loss_workaround_ich8lan() */
+ e_info("Gigabit has been disabled, downgrading speed\n");
+ }
+
+ return link_active;
+}
+
+static void e1000e_enable_receives(struct e1000_adapter *adapter)
+{
+ /* make sure the receive unit is started */
+ if ((adapter->flags & FLAG_RX_NEEDS_RESTART) &&
+ (adapter->flags & FLAG_RESTART_NOW)) {
+ struct e1000_hw *hw = &adapter->hw;
+ u32 rctl = er32(RCTL);
+
+ ew32(RCTL, rctl | E1000_RCTL_EN);
+ adapter->flags &= ~FLAG_RESTART_NOW;
+ }
+}
+
+static void e1000e_check_82574_phy_workaround(struct e1000_adapter *adapter)
+{
+ struct e1000_hw *hw = &adapter->hw;
+
+ /* With 82574 controllers, PHY needs to be checked periodically
+ * for hung state and reset, if two calls return true
+ */
+ if (e1000_check_phy_82574(hw))
+ adapter->phy_hang_count++;
+ else
+ adapter->phy_hang_count = 0;
+
+ if (adapter->phy_hang_count > 1) {
+ adapter->phy_hang_count = 0;
+ e_dbg("PHY appears hung - resetting\n");
+ schedule_work(&adapter->reset_task);
+ }
+}
+
+/**
+ * e1000_watchdog - Timer Call-back
+ * @t: the struct of the function to call when watchdog_timer expires
+ **/
+static void e1000_watchdog(struct timer_list *t)
+{
+ struct e1000_adapter *adapter = from_timer(adapter, t, watchdog_timer);
+
+ /* Do the rest outside of interrupt context */
+ schedule_work(&adapter->watchdog_task);
+
+ /* TODO: make this use queue_delayed_work() */
+}
+
+static void e1000_watchdog_task(struct work_struct *work)
+{
+ struct e1000_adapter *adapter = container_of(work,
+ struct e1000_adapter,
+ watchdog_task);
+ struct net_device *netdev = adapter->netdev;
+ struct e1000_mac_info *mac = &adapter->hw.mac;
+ struct e1000_phy_info *phy = &adapter->hw.phy;
+ struct e1000_ring *tx_ring = adapter->tx_ring;
+ struct e1000_hw *hw = &adapter->hw;
+ u32 link, tctl, pcim_state;
+ u32 dmoff_exit_timeout = 100, tries = 0;
+
+#ifdef DYNAMIC_LTR_SUPPORT
+ if (test_bit(__E1000_DOWN, &adapter->state)) {
+ if (adapter->c10_demote_ltr) {
+ adapter->c10_demote_ltr = false;
+ e1000_demote_ltr(hw, adapter->c10_demote_ltr, false);
+ }
+ return;
+ }
+#else
+ if (test_bit(__E1000_DOWN, &adapter->state))
+ return;
+#endif /* DYNAMIC_LTR_SUPPORT */
+
+ link = e1000e_has_link(adapter);
+ if ((netif_carrier_ok(netdev)) && link) {
+ /* Cancel scheduled suspend requests. */
+ pm_runtime_resume(netdev->dev.parent);
+
+ e1000e_enable_receives(adapter);
+ goto link_up;
+ }
+#if defined(NETIF_F_HW_VLAN_TX) || defined(NETIF_F_HW_VLAN_CTAG_TX)
+ if ((e1000e_enable_tx_pkt_filtering(hw)) &&
+ (adapter->mng_vlan_id != adapter->hw.mng_cookie.vlan_id))
+ e1000_update_mng_vlan(adapter);
+
+#endif
+ if (link) {
+ if (!netif_carrier_ok(netdev)) {
+ bool txb2b = true;
+
+ /* Cancel scheduled suspend requests. */
+ pm_runtime_resume(netdev->dev.parent);
+
+ /* Checking if MAC is in DMoff state */
+ pcim_state = er32(STATUS);
+ while (pcim_state & E1000_STATUS_PCIM_STATE) {
+ if (tries++ == dmoff_exit_timeout) {
+ e_dbg("Error in exiting dmoff\n");
+ break;
+ }
+ usleep_range(10000, 20000);
+ pcim_state = er32(STATUS);
+
+ /* Checking if MAC exited DMoff state */
+ if (!(pcim_state & E1000_STATUS_PCIM_STATE))
+ e1000_phy_hw_reset(&adapter->hw);
+ }
+#ifdef SIOCGMIIPHY
+ /* update snapshot of PHY registers on LSC */
+ e1000_phy_read_status(adapter);
+#endif
+ mac->ops.get_link_up_info(&adapter->hw,
+ &adapter->link_speed,
+ &adapter->link_duplex);
+ e1000_print_link_info(adapter);
+
+ /* check if SmartSpeed worked */
+ e1000e_check_downshift(hw);
+ if (phy->speed_downgraded)
+ netdev_warn(netdev,
+ "Link Speed was downgraded by SmartSpeed\n");
+
+ /* On supported PHYs, check for duplex mismatch only
+ * if link has autonegotiated at 10/100 half
+ */
+ if ((hw->phy.type == e1000_phy_igp_3 ||
+ hw->phy.type == e1000_phy_bm) &&
+ hw->mac.autoneg &&
+ (adapter->link_speed == SPEED_10 ||
+ adapter->link_speed == SPEED_100) &&
+ (adapter->link_duplex == HALF_DUPLEX)) {
+ u16 autoneg_exp;
+
+ e1e_rphy(hw, MII_EXPANSION, &autoneg_exp);
+
+ if (!(autoneg_exp & EXPANSION_NWAY))
+ e_info("Autonegotiated half duplex but link partner cannot autoneg. Try forcing full duplex if link gets many collisions.\n");
+ }
+
+ /* adjust timeout factor according to speed/duplex */
+ adapter->tx_timeout_factor = 1;
+ switch (adapter->link_speed) {
+ case SPEED_10:
+ txb2b = false;
+ adapter->tx_timeout_factor = 16;
+ break;
+ case SPEED_100:
+ txb2b = false;
+ adapter->tx_timeout_factor = 10;
+ break;
+ }
+
+ /* workaround: re-program speed mode bit after
+ * link-up event
+ */
+ if ((adapter->flags & FLAG_TARC_SPEED_MODE_BIT) &&
+ !txb2b) {
+ u32 tarc0;
+
+ tarc0 = er32(TARC(0));
+ tarc0 &= ~SPEED_MODE_BIT;
+ ew32(TARC(0), tarc0);
+ }
+#ifdef NETIF_F_TSO
+ /* disable TSO for pcie and 10/100 speeds, to avoid
+ * some hardware issues
+ */
+ if (!(adapter->flags & FLAG_TSO_FORCE)) {
+ switch (adapter->link_speed) {
+ case SPEED_10:
+ case SPEED_100:
+ e_info("10/100 speed: disabling TSO\n");
+ netdev->features &= ~NETIF_F_TSO;
+#ifdef NETIF_F_TSO6
+ netdev->features &= ~NETIF_F_TSO6;
+#endif
+ break;
+ case SPEED_1000:
+ netdev->features |= NETIF_F_TSO;
+#ifdef NETIF_F_TSO6
+ netdev->features |= NETIF_F_TSO6;
+#endif
+ break;
+ default:
+ /* oops */
+ break;
+ }
+ }
+#endif
+
+ /* enable transmits in the hardware, need to do this
+ * after setting TARC(0)
+ */
+ tctl = er32(TCTL);
+ tctl |= E1000_TCTL_EN;
+ ew32(TCTL, tctl);
+
+ /* Perform any post-link-up configuration before
+ * reporting link up.
+ */
+ if (phy->ops.cfg_on_link_up)
+ phy->ops.cfg_on_link_up(hw);
+
+ netif_carrier_on(netdev);
+
+ if (!test_bit(__E1000_DOWN, &adapter->state))
+ mod_timer(&adapter->phy_info_timer,
+ round_jiffies(jiffies + 2 * HZ));
+ }
+ } else {
+ if (netif_carrier_ok(netdev)) {
+ adapter->link_speed = 0;
+ adapter->link_duplex = 0;
+ /* Link status message must follow this format */
+ netdev_info(netdev, "NIC Link is Down\n");
+ netif_carrier_off(netdev);
+ if (!test_bit(__E1000_DOWN, &adapter->state))
+ mod_timer(&adapter->phy_info_timer,
+ round_jiffies(jiffies + 2 * HZ));
+
+ /* 8000ES2LAN requires a Rx packet buffer work-around
+ * on link down event; reset the controller to flush
+ * the Rx packet buffer.
+ */
+ if (adapter->flags & FLAG_RX_NEEDS_RESTART)
+ adapter->flags |= FLAG_RESTART_NOW;
+ else
+ pm_schedule_suspend(netdev->dev.parent,
+ LINK_TIMEOUT);
+ }
+ }
+
+link_up:
+#ifdef DYNAMIC_LTR_SUPPORT
+ if (((hw->adapter->pdev->device == E1000_DEV_ID_PCH_I218_LM3) ||
+ (hw->adapter->pdev->device == E1000_DEV_ID_PCH_I218_V3)) &&
+ adapter->c10_demote_ltr &&
+ (adapter->stats.mpc <= adapter->c10_mpc_count) &&
+ ((adapter->c10_rx_bytes - adapter->stats.gorc) <
+ adapter->c10_pba_bytes)) {
+ adapter->c10_demote_ltr = false;
+ e1000_demote_ltr(hw, adapter->c10_demote_ltr, link);
+ }
+ adapter->c10_rx_bytes = adapter->total_rx_bytes;
+
+#endif /* DYNAMIC_LTR_SUPPORT */
+#ifdef HAVE_NDO_GET_STATS64
+ spin_lock(&adapter->stats64_lock);
+#endif
+ e1000e_update_stats(adapter);
+
+ mac->tx_packet_delta = adapter->stats.tpt - adapter->tpt_old;
+ adapter->tpt_old = adapter->stats.tpt;
+ mac->collision_delta = adapter->stats.colc - adapter->colc_old;
+ adapter->colc_old = adapter->stats.colc;
+
+ adapter->gorc = adapter->stats.gorc - adapter->gorc_old;
+ adapter->gorc_old = adapter->stats.gorc;
+ adapter->gotc = adapter->stats.gotc - adapter->gotc_old;
+ adapter->gotc_old = adapter->stats.gotc;
+#ifdef HAVE_NDO_GET_STATS64
+ spin_unlock(&adapter->stats64_lock);
+#endif
+
+ /* If the link is lost the controller stops DMA, but
+ * if there is queued Tx work it cannot be done. So
+ * reset the controller to flush the Tx packet buffers.
+ */
+ if (!netif_carrier_ok(netdev) &&
+ (e1000_desc_unused(tx_ring) + 1 < tx_ring->count))
+ adapter->flags |= FLAG_RESTART_NOW;
+
+ /* If reset is necessary, do it outside of interrupt context. */
+ if (adapter->flags & FLAG_RESTART_NOW) {
+ schedule_work(&adapter->reset_task);
+ /* return immediately since reset is imminent */
+ return;
+ }
+
+ e1000e_update_adaptive(&adapter->hw);
+
+ /* Simple mode for Interrupt Throttle Rate (ITR) */
+ if (adapter->itr_setting == 4) {
+ /* Symmetric Tx/Rx gets a reduced ITR=2000;
+ * Total asymmetrical Tx or Rx gets ITR=8000;
+ * everyone else is between 2000-8000.
+ */
+ u32 goc = (adapter->gotc + adapter->gorc) / 10000;
+ u32 dif = (adapter->gotc > adapter->gorc ?
+ adapter->gotc - adapter->gorc :
+ adapter->gorc - adapter->gotc) / 10000;
+ u32 itr = goc > 0 ? (dif * 6000 / goc + 2000) : 8000;
+
+ e1000e_write_itr(adapter, itr);
+ }
+
+ /* Cause software interrupt to ensure Rx ring is cleaned */
+ if (adapter->msix_entries)
+ ew32(ICS, adapter->rx_ring->ims_val);
+ else
+ ew32(ICS, E1000_ICS_RXDMT0);
+
+ /* flush pending descriptors to memory before detecting Tx hang */
+ e1000e_flush_descriptors(adapter);
+
+ /* Force detection of hung controller every watchdog period */
+ adapter->detect_tx_hung = true;
+
+ /* With 82571 controllers, LAA may be overwritten due to controller
+ * reset from the other port. Set the appropriate LAA in RAR[0]
+ */
+ if (e1000e_get_laa_state_82571(hw))
+ hw->mac.ops.rar_set(hw, adapter->hw.mac.addr, 0);
+
+ if (adapter->flags2 & FLAG2_CHECK_PHY_HANG)
+ e1000e_check_82574_phy_workaround(adapter);
+
+#ifdef HAVE_HW_TIME_STAMP
+ /* Clear valid timestamp stuck in RXSTMPL/H due to a Rx error */
+ if (adapter->hwtstamp_config.rx_filter != HWTSTAMP_FILTER_NONE) {
+ if ((adapter->flags2 & FLAG2_CHECK_RX_HWTSTAMP) &&
+ (er32(TSYNCRXCTL) & E1000_TSYNCRXCTL_VALID)) {
+ er32(RXSTMPH);
+ adapter->rx_hwtstamp_cleared++;
+ } else {
+ adapter->flags2 |= FLAG2_CHECK_RX_HWTSTAMP;
+ }
+ }
+#endif
+
+ /* Reset the timer */
+ if (!test_bit(__E1000_DOWN, &adapter->state))
+ mod_timer(&adapter->watchdog_timer,
+ round_jiffies(jiffies + 2 * HZ));
+}
+
+#define E1000_TX_FLAGS_CSUM 0x00000001
+#define E1000_TX_FLAGS_VLAN 0x00000002
+#define E1000_TX_FLAGS_TSO 0x00000004
+#define E1000_TX_FLAGS_IPV4 0x00000008
+#define E1000_TX_FLAGS_NO_FCS 0x00000010
+#define E1000_TX_FLAGS_HWTSTAMP 0x00000020
+#define E1000_TX_FLAGS_VLAN_MASK 0xffff0000
+#define E1000_TX_FLAGS_VLAN_SHIFT 16
+
+static int e1000_tso(struct e1000_ring *tx_ring, struct sk_buff *skb,
+ __be16 protocol)
+{
+#ifdef NETIF_F_TSO
+ struct e1000_context_desc *context_desc;
+ struct e1000_buffer *buffer_info;
+ unsigned int i;
+ u32 cmd_length = 0;
+ u16 ipcse = 0, mss;
+ u8 ipcss, ipcso, tucss, tucso, hdr_len;
+ int err;
+
+ if (!skb_is_gso(skb))
+ return 0;
+
+ err = skb_cow_head(skb, 0);
+ if (err < 0)
+ return err;
+
+ hdr_len = skb_transport_offset(skb) + tcp_hdrlen(skb);
+ mss = skb_shinfo(skb)->gso_size;
+ if (protocol == htons(ETH_P_IP)) {
+ struct iphdr *iph = ip_hdr(skb);
+ iph->tot_len = 0;
+ iph->check = 0;
+ tcp_hdr(skb)->check = ~csum_tcpudp_magic(iph->saddr, iph->daddr,
+ 0, IPPROTO_TCP, 0);
+ cmd_length = E1000_TXD_CMD_IP;
+ ipcse = skb_transport_offset(skb) - 1;
+#ifdef NETIF_F_TSO6
+ } else if (skb_is_gso_v6(skb)) {
+ ipv6_hdr(skb)->payload_len = 0;
+ tcp_hdr(skb)->check = ~csum_ipv6_magic(&ipv6_hdr(skb)->saddr,
+ &ipv6_hdr(skb)->daddr,
+ 0, IPPROTO_TCP, 0);
+ ipcse = 0;
+#endif /* NETIF_F_TSO6 */
+ }
+ ipcss = skb_network_offset(skb);
+ ipcso = (void *)&(ip_hdr(skb)->check) - (void *)skb->data;
+ tucss = skb_transport_offset(skb);
+ tucso = (void *)&(tcp_hdr(skb)->check) - (void *)skb->data;
+
+ cmd_length |= (E1000_TXD_CMD_DEXT | E1000_TXD_CMD_TSE |
+ E1000_TXD_CMD_TCP | (skb->len - (hdr_len)));
+
+ i = tx_ring->next_to_use;
+ context_desc = E1000_CONTEXT_DESC(*tx_ring, i);
+ buffer_info = &tx_ring->buffer_info[i];
+
+ context_desc->lower_setup.ip_fields.ipcss = ipcss;
+ context_desc->lower_setup.ip_fields.ipcso = ipcso;
+ context_desc->lower_setup.ip_fields.ipcse = cpu_to_le16(ipcse);
+ context_desc->upper_setup.tcp_fields.tucss = tucss;
+ context_desc->upper_setup.tcp_fields.tucso = tucso;
+ context_desc->upper_setup.tcp_fields.tucse = 0;
+ context_desc->tcp_seg_setup.fields.mss = cpu_to_le16(mss);
+ context_desc->tcp_seg_setup.fields.hdr_len = hdr_len;
+ context_desc->cmd_and_length = cpu_to_le32(cmd_length);
+
+ buffer_info->time_stamp = jiffies;
+ buffer_info->next_to_watch = i;
+
+ i++;
+ if (i == tx_ring->count)
+ i = 0;
+ tx_ring->next_to_use = i;
+
+ return 1;
+#else /* NETIF_F_TSO */
+ return 0;
+#endif /* NETIF_F_TSO */
+}
+
+static bool e1000_tx_csum(struct e1000_ring *tx_ring, struct sk_buff *skb,
+ __be16 protocol)
+{
+ struct e1000_adapter *adapter = tx_ring->adapter;
+ struct e1000_context_desc *context_desc;
+ struct e1000_buffer *buffer_info;
+ unsigned int i;
+ u8 css;
+ u32 cmd_len = E1000_TXD_CMD_DEXT;
+
+ if (skb->ip_summed != CHECKSUM_PARTIAL)
+ return false;
+
+ switch (protocol) {
+ case cpu_to_be16(ETH_P_IP):
+ if (ip_hdr(skb)->protocol == IPPROTO_TCP)
+ cmd_len |= E1000_TXD_CMD_TCP;
+ break;
+ case cpu_to_be16(ETH_P_IPV6):
+ /* XXX not handling all IPV6 headers */
+ if (ipv6_hdr(skb)->nexthdr == IPPROTO_TCP)
+ cmd_len |= E1000_TXD_CMD_TCP;
+ break;
+ default:
+ if (unlikely(net_ratelimit()))
+ e_warn("checksum_partial proto=%x!\n",
+ be16_to_cpu(protocol));
+ break;
+ }
+
+ css = skb_checksum_start_offset(skb);
+
+ i = tx_ring->next_to_use;
+ buffer_info = &tx_ring->buffer_info[i];
+ context_desc = E1000_CONTEXT_DESC(*tx_ring, i);
+
+ context_desc->lower_setup.ip_config = 0;
+ context_desc->upper_setup.tcp_fields.tucss = css;
+ context_desc->upper_setup.tcp_fields.tucso = css + skb->csum_offset;
+ context_desc->upper_setup.tcp_fields.tucse = 0;
+ context_desc->tcp_seg_setup.data = 0;
+ context_desc->cmd_and_length = cpu_to_le32(cmd_len);
+
+ buffer_info->time_stamp = jiffies;
+ buffer_info->next_to_watch = i;
+
+ i++;
+ if (i == tx_ring->count)
+ i = 0;
+ tx_ring->next_to_use = i;
+
+ return true;
+}
+
+static int e1000_tx_map(struct e1000_ring *tx_ring, struct sk_buff *skb,
+ unsigned int first, unsigned int max_per_txd,
+ unsigned int nr_frags)
+{
+ struct e1000_adapter *adapter = tx_ring->adapter;
+ struct pci_dev *pdev = adapter->pdev;
+ struct e1000_buffer *buffer_info;
+ unsigned int len = skb_headlen(skb);
+ unsigned int offset = 0, size, count = 0, i;
+ unsigned int f, bytecount, segs;
+
+ i = tx_ring->next_to_use;
+
+ while (len) {
+ buffer_info = &tx_ring->buffer_info[i];
+ size = min(len, max_per_txd);
+
+ buffer_info->length = size;
+ buffer_info->time_stamp = jiffies;
+ buffer_info->next_to_watch = i;
+ buffer_info->dma = dma_map_single(pci_dev_to_dev(pdev),
+ skb->data + offset,
+ size, DMA_TO_DEVICE);
+ buffer_info->mapped_as_page = false;
+ if (dma_mapping_error(pci_dev_to_dev(pdev), buffer_info->dma))
+ goto dma_error;
+
+ len -= size;
+ offset += size;
+ count++;
+
+ if (len) {
+ i++;
+ if (i == tx_ring->count)
+ i = 0;
+ }
+ }
+
+ for (f = 0; f < nr_frags; f++) {
+ const skb_frag_t *frag = &skb_shinfo(skb)->frags[f];
+
+ len = skb_frag_size(frag);
+ offset = 0;
+
+ while (len) {
+ i++;
+ if (i == tx_ring->count)
+ i = 0;
+
+ buffer_info = &tx_ring->buffer_info[i];
+ size = min(len, max_per_txd);
+
+ buffer_info->length = size;
+ buffer_info->time_stamp = jiffies;
+ buffer_info->next_to_watch = i;
+ buffer_info->dma =
+ skb_frag_dma_map(pci_dev_to_dev(pdev), frag, offset,
+ size, DMA_TO_DEVICE);
+ buffer_info->mapped_as_page = true;
+ if (dma_mapping_error
+ (pci_dev_to_dev(pdev), buffer_info->dma))
+ goto dma_error;
+
+ len -= size;
+ offset += size;
+ count++;
+ }
+ }
+
+#ifdef NETIF_F_TSO
+ segs = skb_shinfo(skb)->gso_segs ? : 1;
+#else
+ segs = 1;
+#endif
+ /* multiply data chunks by size of headers */
+ bytecount = ((segs - 1) * skb_headlen(skb)) + skb->len;
+
+ tx_ring->buffer_info[i].skb = skb;
+ tx_ring->buffer_info[i].segs = segs;
+ tx_ring->buffer_info[i].bytecount = bytecount;
+ tx_ring->buffer_info[first].next_to_watch = i;
+
+ return count;
+
+dma_error:
+ dev_err(pci_dev_to_dev(pdev), "Tx DMA map failed\n");
+ buffer_info->dma = 0;
+ if (count)
+ count--;
+
+ while (count--) {
+ if (i == 0)
+ i += tx_ring->count;
+ i--;
+ buffer_info = &tx_ring->buffer_info[i];
+ e1000_put_txbuf(tx_ring, buffer_info);
+ }
+
+ return 0;
+}
+
+static void e1000_tx_queue(struct e1000_ring *tx_ring, int tx_flags, int count)
+{
+ struct e1000_adapter *adapter = tx_ring->adapter;
+ struct e1000_tx_desc *tx_desc = NULL;
+ struct e1000_buffer *buffer_info;
+ u32 txd_upper = 0, txd_lower = E1000_TXD_CMD_IFCS;
+ unsigned int i;
+
+ if (tx_flags & E1000_TX_FLAGS_TSO) {
+ txd_lower |= E1000_TXD_CMD_DEXT | E1000_TXD_DTYP_D |
+ E1000_TXD_CMD_TSE;
+ txd_upper |= E1000_TXD_POPTS_TXSM << 8;
+
+ if (tx_flags & E1000_TX_FLAGS_IPV4)
+ txd_upper |= E1000_TXD_POPTS_IXSM << 8;
+ }
+
+ if (tx_flags & E1000_TX_FLAGS_CSUM) {
+ txd_lower |= E1000_TXD_CMD_DEXT | E1000_TXD_DTYP_D;
+ txd_upper |= E1000_TXD_POPTS_TXSM << 8;
+ }
+
+ if (tx_flags & E1000_TX_FLAGS_VLAN) {
+ txd_lower |= E1000_TXD_CMD_VLE;
+ txd_upper |= (tx_flags & E1000_TX_FLAGS_VLAN_MASK);
+ }
+
+ if (unlikely(tx_flags & E1000_TX_FLAGS_NO_FCS))
+ txd_lower &= ~(E1000_TXD_CMD_IFCS);
+
+#ifdef HAVE_HW_TIME_STAMP
+ if (unlikely(tx_flags & E1000_TX_FLAGS_HWTSTAMP)) {
+ txd_lower |= E1000_TXD_CMD_DEXT | E1000_TXD_DTYP_D;
+ txd_upper |= E1000_TXD_EXTCMD_TSTAMP;
+ }
+#endif
+
+ i = tx_ring->next_to_use;
+
+ do {
+ buffer_info = &tx_ring->buffer_info[i];
+ tx_desc = E1000_TX_DESC(*tx_ring, i);
+ tx_desc->buffer_addr = cpu_to_le64(buffer_info->dma);
+ tx_desc->lower.data = cpu_to_le32(txd_lower |
+ buffer_info->length);
+ tx_desc->upper.data = cpu_to_le32(txd_upper);
+
+ i++;
+ if (i == tx_ring->count)
+ i = 0;
+ } while (--count > 0);
+
+ tx_desc->lower.data |= cpu_to_le32(adapter->txd_cmd);
+
+ /* txd_cmd re-enables FCS, so we'll re-disable it here as desired. */
+ if (unlikely(tx_flags & E1000_TX_FLAGS_NO_FCS))
+ tx_desc->lower.data &= ~(cpu_to_le32(E1000_TXD_CMD_IFCS));
+
+ /* Force memory writes to complete before letting h/w
+ * know there are new descriptors to fetch. (Only
+ * applicable for weak-ordered memory model archs,
+ * such as IA-64).
+ */
+ wmb();
+
+ tx_ring->next_to_use = i;
+}
+
+#define MINIMUM_DHCP_PACKET_SIZE 282
+static int e1000_transfer_dhcp_info(struct e1000_adapter *adapter,
+ struct sk_buff *skb)
+{
+ struct e1000_hw *hw = &adapter->hw;
+ u16 length, offset;
+
+#if defined(NETIF_F_HW_VLAN_TX) || defined(NETIF_F_HW_VLAN_CTAG_TX)
+ if (skb_vlan_tag_present(skb) &&
+ !((skb_vlan_tag_get(skb) == adapter->hw.mng_cookie.vlan_id) &&
+ (adapter->hw.mng_cookie.status &
+ E1000_MNG_DHCP_COOKIE_STATUS_VLAN)))
+ return 0;
+
+#endif
+ if (skb->len <= MINIMUM_DHCP_PACKET_SIZE)
+ return 0;
+
+ if (((struct ethhdr *)skb->data)->h_proto != htons(ETH_P_IP))
+ return 0;
+
+ {
+ const struct iphdr *ip = (struct iphdr *)((u8 *)skb->data + 14);
+ struct udphdr *udp;
+
+ if (ip->protocol != IPPROTO_UDP)
+ return 0;
+
+ udp = (struct udphdr *)((u8 *)ip + (ip->ihl << 2));
+ if (ntohs(udp->dest) != 67)
+ return 0;
+
+ offset = (u8 *)udp + 8 - skb->data;
+ length = skb->len - offset;
+ return e1000e_mng_write_dhcp_info(hw, (u8 *)udp + 8, length);
+ }
+
+ return 0;
+}
+
+static int __e1000_maybe_stop_tx(struct e1000_ring *tx_ring, int size)
+{
+ struct e1000_adapter *adapter = tx_ring->adapter;
+
+ netif_stop_queue(adapter->netdev);
+ /* Herbert's original patch had:
+ * smp_mb__after_netif_stop_queue();
+ * but since that doesn't exist yet, just open code it.
+ */
+ smp_mb();
+
+ /* We need to check again in a case another CPU has just
+ * made room available.
+ */
+ if (e1000_desc_unused(tx_ring) < size)
+ return -EBUSY;
+
+ /* A reprieve! */
+ netif_start_queue(adapter->netdev);
+ ++adapter->restart_queue;
+ return 0;
+}
+
+static int e1000_maybe_stop_tx(struct e1000_ring *tx_ring, int size)
+{
+ BUG_ON(size > tx_ring->count);
+
+ if (e1000_desc_unused(tx_ring) >= size)
+ return 0;
+ return __e1000_maybe_stop_tx(tx_ring, size);
+}
+
+static netdev_tx_t e1000_xmit_frame(struct sk_buff *skb,
+ struct net_device *netdev)
+{
+ struct e1000_adapter *adapter = netdev_priv(netdev);
+ struct e1000_ring *tx_ring = adapter->tx_ring;
+ unsigned int first;
+ unsigned int tx_flags = 0;
+ unsigned int len = skb_headlen(skb);
+ unsigned int nr_frags;
+ unsigned int mss;
+ int count = 0;
+ int tso;
+ unsigned int f;
+ __be16 protocol = vlan_get_protocol(skb);
+
+ if (test_bit(__E1000_DOWN, &adapter->state)) {
+ dev_kfree_skb_any(skb);
+ return NETDEV_TX_OK;
+ }
+
+ if (skb->len <= 0) {
+ dev_kfree_skb_any(skb);
+ return NETDEV_TX_OK;
+ }
+
+ /* The minimum packet size with TCTL.PSP set is 17 bytes so
+ * pad skb in order to meet this minimum size requirement
+ */
+ if (skb_put_padto(skb, 17))
+ return NETDEV_TX_OK;
+
+#ifdef NETIF_F_TSO
+ mss = skb_shinfo(skb)->gso_size;
+ if (mss) {
+ u8 hdr_len;
+
+ /* TSO Workaround for 82571/2/3 Controllers -- if skb->data
+ * points to just header, pull a few bytes of payload from
+ * frags into skb->data
+ */
+ hdr_len = skb_transport_offset(skb) + tcp_hdrlen(skb);
+ /* we do this workaround for ES2LAN, but it is un-necessary,
+ * avoiding it could save a lot of cycles
+ */
+ if (skb->data_len && (hdr_len == len)) {
+ unsigned int pull_size;
+
+ pull_size = min_t(unsigned int, 4, skb->data_len);
+ if (!__pskb_pull_tail(skb, pull_size)) {
+ e_err("__pskb_pull_tail failed.\n");
+ dev_kfree_skb_any(skb);
+ return NETDEV_TX_OK;
+ }
+ len = skb_headlen(skb);
+ }
+ }
+
+ /* reserve a descriptor for the offload context */
+ if ((mss) || (skb->ip_summed == CHECKSUM_PARTIAL))
+ count++;
+ count++;
+#else
+ mss = 0;
+
+ if (skb->ip_summed == CHECKSUM_PARTIAL)
+ count++;
+#endif
+
+ count += DIV_ROUND_UP(len, adapter->tx_fifo_limit);
+
+ nr_frags = skb_shinfo(skb)->nr_frags;
+ for (f = 0; f < nr_frags; f++)
+ count += DIV_ROUND_UP(skb_frag_size(&skb_shinfo(skb)->frags[f]),
+ adapter->tx_fifo_limit);
+
+ if (adapter->hw.mac.tx_pkt_filtering)
+ e1000_transfer_dhcp_info(adapter, skb);
+
+ /* need: count + 2 desc gap to keep tail from touching
+ * head, otherwise try next time
+ */
+ if (e1000_maybe_stop_tx(tx_ring, count + 2))
+ return NETDEV_TX_BUSY;
+
+#if defined(NETIF_F_HW_VLAN_TX) || defined(NETIF_F_HW_VLAN_CTAG_TX)
+ if (skb_vlan_tag_present(skb)) {
+ tx_flags |= E1000_TX_FLAGS_VLAN;
+ tx_flags |= (skb_vlan_tag_get(skb) <<
+ E1000_TX_FLAGS_VLAN_SHIFT);
+ }
+#endif
+ first = tx_ring->next_to_use;
+
+ tso = e1000_tso(tx_ring, skb, protocol);
+ if (tso < 0) {
+ dev_kfree_skb_any(skb);
+ return NETDEV_TX_OK;
+ }
+
+ if (tso)
+ tx_flags |= E1000_TX_FLAGS_TSO;
+ else if (e1000_tx_csum(tx_ring, skb, protocol))
+ tx_flags |= E1000_TX_FLAGS_CSUM;
+
+ /* Old method was to assume IPv4 packet by default if TSO was enabled.
+ * 82571 hardware supports TSO capabilities for IPv6 as well...
+ * no longer assume, we must.
+ */
+ if (protocol == htons(ETH_P_IP))
+ tx_flags |= E1000_TX_FLAGS_IPV4;
+
+#ifdef IFF_SUPP_NOFCS
+ if (unlikely(skb->no_fcs))
+ tx_flags |= E1000_TX_FLAGS_NO_FCS;
+#endif /* IFF_SUPP_NOFCS */
+
+ /* if count is 0 then mapping error has occurred */
+ count = e1000_tx_map(tx_ring, skb, first, adapter->tx_fifo_limit,
+ nr_frags);
+ if (count) {
+#ifdef HAVE_HW_TIME_STAMP
+#ifdef SKB_SHARED_TX_IS_UNION
+ if (unlikely(skb_shinfo(skb)->tx_flags.flags &
+ SKBTX_HW_TSTAMP) &&
+ (adapter->flags & FLAG_HAS_HW_TIMESTAMP)) {
+ if (!adapter->tx_hwtstamp_skb) {
+ skb_shinfo(skb)->tx_flags.flags |=
+ SKBTX_IN_PROGRESS;
+ tx_flags |= E1000_TX_FLAGS_HWTSTAMP;
+ adapter->tx_hwtstamp_skb = skb_get(skb);
+ adapter->tx_hwtstamp_start = jiffies;
+ schedule_work(&adapter->tx_hwtstamp_work);
+ } else {
+ adapter->tx_hwtstamp_skipped++;
+ }
+ }
+
+ skb_tx_timestamp(skb);
+#else
+ if (unlikely(skb_shinfo(skb)->tx_flags & SKBTX_HW_TSTAMP) &&
+ (adapter->flags & FLAG_HAS_HW_TIMESTAMP)) {
+ if (!adapter->tx_hwtstamp_skb) {
+ skb_shinfo(skb)->tx_flags |= SKBTX_IN_PROGRESS;
+ tx_flags |= E1000_TX_FLAGS_HWTSTAMP;
+ adapter->tx_hwtstamp_skb = skb_get(skb);
+ adapter->tx_hwtstamp_start = jiffies;
+ schedule_work(&adapter->tx_hwtstamp_work);
+ } else {
+ adapter->tx_hwtstamp_skipped++;
+ }
+ }
+
+ skb_tx_timestamp(skb);
+#endif /* SKB_SHARED_TX_IS_UNION */
+#else
+ skb_tx_timestamp(skb);
+#endif /* HAVE_HW_TIME_STAMP */
+
+ netdev_sent_queue(netdev, skb->len);
+ e1000_tx_queue(tx_ring, tx_flags, count);
+ /* Make sure there is space in the ring for the next send. */
+ e1000_maybe_stop_tx(tx_ring,
+ (MAX_SKB_FRAGS *
+ DIV_ROUND_UP(PAGE_SIZE,
+ adapter->tx_fifo_limit) + 2));
+
+ if (!netdev_xmit_more() ||
+ netif_xmit_stopped(netdev_get_tx_queue(netdev, 0))) {
+ if (adapter->flags2 & FLAG2_PCIM2PCI_ARBITER_WA)
+ e1000e_update_tdt_wa(tx_ring,
+ tx_ring->next_to_use);
+ else
+ writel(tx_ring->next_to_use, tx_ring->tail);
+
+#ifndef SPIN_UNLOCK_IMPLIES_MMIOWB
+ /* The following mmiowb() is required on certain
+ * architechtures (IA64/Altix in particular) in order
+ * to synchronize the I/O calls with respect to a spin
+ * lock. This is because the wmb() on those
+ * architectures does not guarantee anything for
+ * posted I/O writes.
+ *
+ * Note that the associated spin_unlock() is not
+ * within the driver code, but in the networking core
+ * stack.
+ */
+ mmiowb();
+#endif /* SPIN_UNLOCK_IMPLIES_MMIOWB */
+ }
+ } else {
+ dev_kfree_skb_any(skb);
+ tx_ring->buffer_info[first].time_stamp = 0;
+ tx_ring->next_to_use = first;
+ }
+#ifndef HAVE_TRANS_START_IN_QUEUE
+ netdev->trans_start = jiffies;
+#endif
+
+ return NETDEV_TX_OK;
+}
+
+/**
+ * e1000_tx_timeout - Respond to a Tx Hang
+ * @netdev: network interface device structure
+ * @txqueue: txqueue
+ **/
+#ifdef HAVE_TX_TIMEOUT_TXQUEUE
+static void e1000_tx_timeout(struct net_device *netdev, unsigned int txqueue)
+#else
+static void e1000_tx_timeout(struct net_device *netdev)
+#endif
+{
+ struct e1000_adapter *adapter = netdev_priv(netdev);
+
+ /* Do the reset outside of interrupt context */
+ adapter->tx_timeout_count++;
+ schedule_work(&adapter->reset_task);
+}
+
+static void e1000_reset_task(struct work_struct *work)
+{
+ struct e1000_adapter *adapter;
+ adapter = container_of(work, struct e1000_adapter, reset_task);
+
+ /* don't run the task if already down */
+ if (test_bit(__E1000_DOWN, &adapter->state))
+ return;
+
+ if (!(adapter->flags & FLAG_RESTART_NOW)) {
+ e1000e_dump(adapter);
+ e_err("Reset adapter unexpectedly\n");
+ }
+ e1000e_reinit_locked(adapter);
+}
+
+#ifdef HAVE_NDO_GET_STATS64
+/**
+ * e1000_get_stats64 - Get System Network Statistics
+ * @netdev: network interface device structure
+ * @stats: rtnl_link_stats64 pointer
+ *
+ * Returns the address of the device statistics structure.
+ **/
+#ifdef HAVE_VOID_NDO_GET_STATS64
+void e1000e_get_stats64(struct net_device *netdev,
+ struct rtnl_link_stats64 *stats)
+#else
+struct rtnl_link_stats64 *e1000e_get_stats64(struct net_device *netdev,
+ struct rtnl_link_stats64 *stats)
+#endif /* HAVE_VOID_NDO_GET_STATS64 */
+{
+ struct e1000_adapter *adapter = netdev_priv(netdev);
+
+ memset(stats, 0, sizeof(struct rtnl_link_stats64));
+ spin_lock(&adapter->stats64_lock);
+ e1000e_update_stats(adapter);
+ /* Fill out the OS statistics structure */
+ stats->rx_bytes = adapter->stats.gorc;
+ stats->rx_packets = adapter->stats.gprc;
+ stats->tx_bytes = adapter->stats.gotc;
+ stats->tx_packets = adapter->stats.gptc;
+ stats->multicast = adapter->stats.mprc;
+ stats->collisions = adapter->stats.colc;
+
+ /* Rx Errors */
+
+ /* RLEC on some newer hardware can be incorrect so build
+ * our own version based on RUC and ROC
+ */
+ stats->rx_errors = adapter->stats.rxerrc +
+ adapter->stats.crcerrs + adapter->stats.algnerrc +
+ adapter->stats.ruc + adapter->stats.roc + adapter->stats.cexterr;
+ stats->rx_length_errors = adapter->stats.ruc + adapter->stats.roc;
+ stats->rx_crc_errors = adapter->stats.crcerrs;
+ stats->rx_frame_errors = adapter->stats.algnerrc;
+ stats->rx_missed_errors = adapter->stats.mpc;
+
+ /* Tx Errors */
+ stats->tx_errors = adapter->stats.ecol + adapter->stats.latecol;
+ stats->tx_aborted_errors = adapter->stats.ecol;
+ stats->tx_window_errors = adapter->stats.latecol;
+ stats->tx_carrier_errors = adapter->stats.tncrs;
+
+ /* Tx Dropped needs to be maintained elsewhere */
+
+ spin_unlock(&adapter->stats64_lock);
+#ifndef HAVE_VOID_NDO_GET_STATS64
+ return stats;
+#endif /* HAVE_VOID_NDO_GET_STATS64 */
+}
+#else /* HAVE_NDO_GET_STATS64 */
+/**
+ * e1000_get_stats - Get System Network Statistics
+ * @netdev: network interface device structure
+ *
+ * Returns the address of the device statistics structure.
+ * The statistics are actually updated from the timer callback.
+ **/
+static struct net_device_stats *e1000_get_stats(struct net_device *netdev)
+{
+#ifndef HAVE_NETDEV_STATS_IN_NETDEV
+ struct e1000_adapter *adapter = netdev_priv(netdev);
+
+ /* only return the current stats */
+ return &adapter->net_stats;
+#else /* HAVE_NETDEV_STATS_IN_NETDEV */
+ /* only return the current stats */
+ return &netdev->stats;
+#endif /* HAVE_NETDEV_STATS_IN_NETDEV */
+}
+#endif /* HAVE_NDO_GET_STATS64 */
+
+/**
+ * e1000_change_mtu - Change the Maximum Transfer Unit
+ * @netdev: network interface device structure
+ * @new_mtu: new value for maximum frame size
+ *
+ * Returns 0 on success, negative on failure
+ **/
+static int e1000_change_mtu(struct net_device *netdev, int new_mtu)
+{
+ struct e1000_adapter *adapter = netdev_priv(netdev);
+ int max_frame = new_mtu + VLAN_ETH_HLEN + ETH_FCS_LEN;
+
+ /* Jumbo frame support */
+ if (new_mtu > ETH_DATA_LEN && !(adapter->flags & FLAG_HAS_JUMBO_FRAMES)) {
+ e_err("Jumbo Frames not supported.\n");
+ return -EINVAL;
+ }
+
+ /* Jumbo frame workaround on 82579 and newer requires CRC be stripped */
+ if ((adapter->hw.mac.type >= e1000_pch2lan) &&
+ !(adapter->flags2 & FLAG2_CRC_STRIPPING) &&
+ (new_mtu > ETH_DATA_LEN)) {
+ e_err("Jumbo Frames not supported on this device when CRC stripping is disabled.\n");
+ return -EINVAL;
+ }
+
+ while (test_and_set_bit(__E1000_RESETTING, &adapter->state))
+ usleep_range(1000, 1100);
+ /* e1000e_down -> e1000e_reset dependent on max_frame_size & mtu */
+ adapter->max_frame_size = max_frame;
+ netdev_dbg(netdev, "changing MTU from %d to %d\n",
+ netdev->mtu, new_mtu);
+ netdev->mtu = new_mtu;
+
+ pm_runtime_get_sync((netdev_to_dev(netdev))->parent);
+
+ if (netif_running(netdev))
+ e1000e_down(adapter, true);
+
+ /* NOTE: netdev_alloc_skb reserves 16 bytes, and typically NET_IP_ALIGN
+ * means we reserve 2 more, this pushes us to allocate from the next
+ * larger slab size.
+ * i.e. RXBUFFER_2048 --> size-4096 slab
+ * However with the new *_jumbo_rx* routines, jumbo receives will use
+ * fragmented skbs
+ */
+
+ if (max_frame <= 2048)
+ adapter->rx_buffer_len = 2048;
+#ifdef CONFIG_E1000E_NAPI
+ else
+ adapter->rx_buffer_len = 4096;
+#else
+ else if (max_frame <= 4096)
+ adapter->rx_buffer_len = 4096;
+ else if (max_frame <= 8192)
+ adapter->rx_buffer_len = 8192;
+ else if (max_frame <= 16384)
+ adapter->rx_buffer_len = 16384;
+#endif
+
+ /* adjust allocation if LPE protects us, and we aren't using SBP */
+ if (max_frame <= (VLAN_ETH_FRAME_LEN + ETH_FCS_LEN))
+ adapter->rx_buffer_len = VLAN_ETH_FRAME_LEN + ETH_FCS_LEN;
+
+ if (netif_running(netdev))
+ e1000e_up(adapter);
+ else
+ e1000e_reset(adapter);
+
+ pm_runtime_put_sync((netdev_to_dev(netdev))->parent);
+
+ clear_bit(__E1000_RESETTING, &adapter->state);
+
+ return 0;
+}
+
+#if defined(SIOCGMIIPHY) || defined(SIOCGMIIREG) || defined(SIOCSMIIREG)
+static int e1000_mii_ioctl(struct net_device *netdev, struct ifreq *ifr,
+ int cmd)
+{
+ struct e1000_adapter *adapter = netdev_priv(netdev);
+ struct mii_ioctl_data *data = if_mii(ifr);
+
+ if (adapter->hw.phy.media_type != e1000_media_type_copper)
+ return -EOPNOTSUPP;
+
+ switch (cmd) {
+#ifdef SIOCGMIIPHY
+ case SIOCGMIIPHY:
+ data->phy_id = adapter->hw.phy.addr;
+ break;
+#endif
+#ifdef SIOCGMIIREG
+ case SIOCGMIIREG:
+ e1000_phy_read_status(adapter);
+
+ switch (data->reg_num & 0x1F) {
+ case MII_BMCR:
+ data->val_out = adapter->phy_regs.bmcr;
+ break;
+ case MII_BMSR:
+ data->val_out = adapter->phy_regs.bmsr;
+ break;
+ case MII_PHYSID1:
+ data->val_out = (adapter->hw.phy.id >> 16);
+ break;
+ case MII_PHYSID2:
+ data->val_out = (adapter->hw.phy.id & 0xFFFF);
+ break;
+ case MII_ADVERTISE:
+ data->val_out = adapter->phy_regs.advertise;
+ break;
+ case MII_LPA:
+ data->val_out = adapter->phy_regs.lpa;
+ break;
+ case MII_EXPANSION:
+ data->val_out = adapter->phy_regs.expansion;
+ break;
+ case MII_CTRL1000:
+ data->val_out = adapter->phy_regs.ctrl1000;
+ break;
+ case MII_STAT1000:
+ data->val_out = adapter->phy_regs.stat1000;
+ break;
+ case MII_ESTATUS:
+ data->val_out = adapter->phy_regs.estatus;
+ break;
+ default:
+ return -EIO;
+ }
+ break;
+#endif
+#ifdef SIOCGMIIREG
+ case SIOCSMIIREG:
+#endif
+ default:
+ return -EOPNOTSUPP;
+ }
+ return 0;
+}
+#endif /* defined(SIOCGMIIPHY||SIOCGMIIREG||SIOCSMIIREG) */
+
+#if defined(SIOCSHWTSTAMP) && defined(HAVE_HW_TIME_STAMP)
+/**
+ * e1000e_hwtstamp_ioctl - control hardware time stamping
+ * @netdev: network interface device structure
+ * @ifr: interface request
+ *
+ * Outgoing time stamping can be enabled and disabled. Play nice and
+ * disable it when requested, although it shouldn't cause any overhead
+ * when no packet needs it. At most one packet in the queue may be
+ * marked for time stamping, otherwise it would be impossible to tell
+ * for sure to which packet the hardware time stamp belongs.
+ *
+ * Incoming time stamping has to be configured via the hardware filters.
+ * Not all combinations are supported, in particular event type has to be
+ * specified. Matching the kind of event packet is not supported, with the
+ * exception of "all V2 events regardless of level 2 or 4".
+ **/
+static int e1000e_hwtstamp_set(struct net_device *netdev, struct ifreq *ifr)
+{
+ struct e1000_adapter *adapter = netdev_priv(netdev);
+ struct hwtstamp_config config;
+ int ret_val;
+
+ if (copy_from_user(&config, ifr->ifr_data, sizeof(config)))
+ return -EFAULT;
+
+ ret_val = e1000e_config_hwtstamp(adapter, &config);
+ if (ret_val)
+ return ret_val;
+
+#ifdef HAVE_PTP_1588_CLOCK
+ switch (config.rx_filter) {
+ case HWTSTAMP_FILTER_PTP_V2_L4_SYNC:
+ case HWTSTAMP_FILTER_PTP_V2_L2_SYNC:
+ case HWTSTAMP_FILTER_PTP_V2_SYNC:
+ case HWTSTAMP_FILTER_PTP_V2_L4_DELAY_REQ:
+ case HWTSTAMP_FILTER_PTP_V2_L2_DELAY_REQ:
+ case HWTSTAMP_FILTER_PTP_V2_DELAY_REQ:
+ /* With V2 type filters which specify a Sync or Delay Request,
+ * Path Delay Request/Response messages are also time stamped
+ * by hardware so notify the caller the requested packets plus
+ * some others are time stamped.
+ */
+ config.rx_filter = HWTSTAMP_FILTER_SOME;
+ break;
+ default:
+ break;
+ }
+#endif /* HAVE_PTP_1588_CLOCK */
+
+ return copy_to_user(ifr->ifr_data, &config,
+ sizeof(config)) ? -EFAULT : 0;
+}
+#endif /* SIOCSHWTSTAMP && HAVE_HW_TIME_STAMP */
+#if defined(SIOCGHWTSTAMP) && defined(HAVE_HW_TIME_STAMP)
+
+static int e1000e_hwtstamp_get(struct net_device *netdev, struct ifreq *ifr)
+{
+ struct e1000_adapter *adapter = netdev_priv(netdev);
+
+ return copy_to_user(ifr->ifr_data, &adapter->hwtstamp_config,
+ sizeof(adapter->hwtstamp_config)) ? -EFAULT : 0;
+}
+
+#endif /* SIOCGHWTSTAMP && HAVE_HW_TIME_STAMP */
+
+static int e1000_ioctl(struct net_device *netdev, struct ifreq *ifr, int cmd)
+{
+ switch (cmd) {
+#ifdef SIOCGMIIPHY
+ case SIOCGMIIPHY:
+#endif
+#ifdef SIOCGMIIREG
+ case SIOCGMIIREG:
+#endif
+#ifdef SIOCSMIIREG
+ case SIOCSMIIREG:
+#endif
+#if defined(SIOCGMIIPHY) || defined(SIOCGMIIREG) || defined(SIOCSMIIREG)
+ return e1000_mii_ioctl(netdev, ifr, cmd);
+#endif
+#if defined(SIOCSHWTSTAMP) && defined(HAVE_HW_TIME_STAMP)
+ case SIOCSHWTSTAMP:
+ return e1000e_hwtstamp_set(netdev, ifr);
+#endif
+#ifdef SIOCGHWTSTAMP
+ case SIOCGHWTSTAMP:
+ return e1000e_hwtstamp_get(netdev, ifr);
+#endif
+#ifdef ETHTOOL_OPS_COMPAT
+ case SIOCETHTOOL:
+ return ethtool_ioctl(ifr);
+#endif
+ default:
+ return -EOPNOTSUPP;
+ }
+}
+
+static int e1000_init_phy_wakeup(struct e1000_adapter *adapter, u32 wufc)
+{
+ struct e1000_hw *hw = &adapter->hw;
+ u32 i, mac_reg, wuc;
+ u16 phy_reg, wuc_enable;
+ int retval;
+
+ /* copy MAC RARs to PHY RARs */
+ e1000_copy_rx_addrs_to_phy_ich8lan(hw);
+
+ retval = hw->phy.ops.acquire(hw);
+ if (retval) {
+ e_err("Could not acquire PHY\n");
+ return retval;
+ }
+
+ /* Enable access to wakeup registers on and set page to BM_WUC_PAGE */
+ retval = e1000_enable_phy_wakeup_reg_access_bm(hw, &wuc_enable);
+ if (retval)
+ goto release;
+
+ /* copy MAC MTA to PHY MTA - only needed for pchlan */
+ for (i = 0; i < adapter->hw.mac.mta_reg_count; i++) {
+ mac_reg = E1000_READ_REG_ARRAY(hw, E1000_MTA, i);
+ hw->phy.ops.write_reg_page(hw, BM_MTA(i),
+ (u16)(mac_reg & 0xFFFF));
+ hw->phy.ops.write_reg_page(hw, BM_MTA(i) + 1,
+ (u16)((mac_reg >> 16) & 0xFFFF));
+ }
+
+ /* configure PHY Rx Control register */
+ hw->phy.ops.read_reg_page(&adapter->hw, BM_RCTL, &phy_reg);
+ mac_reg = er32(RCTL);
+ if (mac_reg & E1000_RCTL_UPE)
+ phy_reg |= BM_RCTL_UPE;
+ if (mac_reg & E1000_RCTL_MPE)
+ phy_reg |= BM_RCTL_MPE;
+ phy_reg &= ~(BM_RCTL_MO_MASK);
+ if (mac_reg & E1000_RCTL_MO_3)
+ phy_reg |= (((mac_reg & E1000_RCTL_MO_3) >> E1000_RCTL_MO_SHIFT)
+ << BM_RCTL_MO_SHIFT);
+ if (mac_reg & E1000_RCTL_BAM)
+ phy_reg |= BM_RCTL_BAM;
+ if (mac_reg & E1000_RCTL_PMCF)
+ phy_reg |= BM_RCTL_PMCF;
+ mac_reg = er32(CTRL);
+ if (mac_reg & E1000_CTRL_RFCE)
+ phy_reg |= BM_RCTL_RFCE;
+ hw->phy.ops.write_reg_page(&adapter->hw, BM_RCTL, phy_reg);
+
+ wuc = E1000_WUC_PME_EN;
+ if (wufc & (E1000_WUFC_MAG | E1000_WUFC_LNKC))
+ wuc |= E1000_WUC_APME;
+
+ /* enable PHY wakeup in MAC register */
+ ew32(WUFC, wufc);
+ ew32(WUC, (E1000_WUC_PHY_WAKE | E1000_WUC_APMPME |
+ E1000_WUC_PME_STATUS | wuc));
+
+ /* configure and enable PHY wakeup in PHY registers */
+ hw->phy.ops.write_reg_page(&adapter->hw, BM_WUFC, wufc);
+ hw->phy.ops.write_reg_page(&adapter->hw, BM_WUC, wuc);
+
+ /* activate PHY wakeup */
+ wuc_enable |= BM_WUC_ENABLE_BIT | BM_WUC_HOST_WU_BIT;
+ retval = e1000_disable_phy_wakeup_reg_access_bm(hw, &wuc_enable);
+ if (retval)
+ e_err("Could not set PHY Host Wakeup bit\n");
+release:
+ hw->phy.ops.release(hw);
+
+ return retval;
+}
+
+static void e1000e_flush_lpic(struct pci_dev *pdev)
+{
+ struct net_device *netdev = pci_get_drvdata(pdev);
+ struct e1000_adapter *adapter = netdev_priv(netdev);
+ struct e1000_hw *hw = &adapter->hw;
+ u32 ret_val;
+
+ pm_runtime_get_sync((netdev_to_dev(netdev))->parent);
+
+ ret_val = hw->phy.ops.acquire(hw);
+ if (ret_val)
+ goto fl_out;
+
+ pr_info("EEE TX LPI TIMER: %08X\n",
+ er32(LPIC) >> E1000_LPIC_LPIET_SHIFT);
+
+ hw->phy.ops.release(hw);
+
+fl_out:
+ pm_runtime_put_sync(netdev->dev.parent);
+}
+
+/* S0ix implementation */
+static void e1000e_s0ix_entry_flow(struct e1000_adapter *adapter)
+{
+ struct e1000_hw *hw = &adapter->hw;
+ u32 mac_data;
+ u16 phy_data;
+
+ /* Disable the periodic inband message,
+ * don't request PCIe clock in K1 page770_17[10:9] = 10b
+ */
+ e1e_rphy(hw, HV_PM_CTRL, &phy_data);
+ phy_data &= ~HV_PM_CTRL_K1_CLK_REQ;
+ phy_data |= BIT(10);
+ e1e_wphy(hw, HV_PM_CTRL, phy_data);
+
+ /* Make sure we don't exit K1 every time a new packet arrives
+ * 772_29[5] = 1 CS_Mode_Stay_In_K1
+ */
+ e1e_rphy(hw, I217_CGFREG, &phy_data);
+ phy_data |= BIT(5);
+ e1e_wphy(hw, I217_CGFREG, phy_data);
+
+ /* Change the MAC/PHY interface to SMBus
+ * Force the SMBus in PHY page769_23[0] = 1
+ * Force the SMBus in MAC CTRL_EXT[11] = 1
+ */
+ e1e_rphy(hw, CV_SMB_CTRL, &phy_data);
+ phy_data |= CV_SMB_CTRL_FORCE_SMBUS;
+ e1e_wphy(hw, CV_SMB_CTRL, phy_data);
+ mac_data = er32(CTRL_EXT);
+ mac_data |= E1000_CTRL_EXT_FORCE_SMBUS;
+ ew32(CTRL_EXT, mac_data);
+
+ /* DFT control: PHY bit: page769_20[0] = 1
+ * Gate PPW via EXTCNF_CTRL - set 0x0F00[7] = 1
+ */
+ e1e_rphy(hw, I82579_DFT_CTRL, &phy_data);
+ phy_data |= BIT(0);
+ e1e_wphy(hw, I82579_DFT_CTRL, phy_data);
+
+ mac_data = er32(EXTCNF_CTRL);
+ mac_data |= E1000_EXTCNF_CTRL_GATE_PHY_CFG;
+ ew32(EXTCNF_CTRL, mac_data);
+
+ /* Check MAC Tx/Rx packet buffer pointers.
+ * Reset MAC Tx/Rx packet buffer pointers to suppress any
+ * pending traffic indication that would prevent power gating.
+ */
+ mac_data = er32(TDFH);
+ if (mac_data)
+ ew32(TDFH, 0);
+ mac_data = er32(TDFT);
+ if (mac_data)
+ ew32(TDFT, 0);
+ mac_data = er32(TDFHS);
+ if (mac_data)
+ ew32(TDFHS, 0);
+ mac_data = er32(TDFTS);
+ if (mac_data)
+ ew32(TDFTS, 0);
+ mac_data = er32(TDFPC);
+ if (mac_data)
+ ew32(TDFPC, 0);
+ mac_data = er32(RDFH);
+ if (mac_data)
+ ew32(RDFH, 0);
+ mac_data = er32(RDFT);
+ if (mac_data)
+ ew32(RDFT, 0);
+ mac_data = er32(RDFHS);
+ if (mac_data)
+ ew32(RDFHS, 0);
+ mac_data = er32(RDFTS);
+ if (mac_data)
+ ew32(RDFTS, 0);
+ mac_data = er32(RDFPC);
+ if (mac_data)
+ ew32(RDFPC, 0);
+
+ /* Enable the Dynamic Power Gating in the MAC */
+ mac_data = er32(FEXTNVM7);
+ mac_data |= BIT(22);
+ ew32(FEXTNVM7, mac_data);
+
+ /* Disable the time synchronization clock */
+ mac_data = er32(FEXTNVM7);
+ mac_data |= BIT(31);
+ mac_data &= ~BIT(0);
+ ew32(FEXTNVM7, mac_data);
+
+ /* Dynamic Power Gating Enable */
+ mac_data = er32(CTRL_EXT);
+ mac_data |= BIT(3);
+ ew32(CTRL_EXT, mac_data);
+
+ /* Disable disconnected cable conditioning for Power Gating */
+ mac_data = er32(DPGFR);
+ mac_data |= BIT(2);
+ ew32(DPGFR, mac_data);
+
+ /* Don't wake from dynamic Power Gating with clock request */
+ mac_data = er32(FEXTNVM12);
+ mac_data |= BIT(12);
+ ew32(FEXTNVM12, mac_data);
+
+ /* Ungate PGCB clock */
+ mac_data = er32(FEXTNVM9);
+ mac_data |= BIT(28);
+ ew32(FEXTNVM9, mac_data);
+
+ /* Enable K1 off to enable mPHY Power Gating */
+ mac_data = er32(FEXTNVM6);
+ mac_data |= BIT(31);
+ ew32(FEXTNVM12, mac_data);
+
+ /* Enable mPHY power gating for any link and speed */
+ mac_data = er32(FEXTNVM8);
+ mac_data |= BIT(9);
+ ew32(FEXTNVM8, mac_data);
+
+ /* Enable the Dynamic Clock Gating in the DMA and MAC */
+ mac_data = er32(CTRL_EXT);
+ mac_data |= E1000_CTRL_EXT_DMA_DYN_CLK_EN;
+ ew32(CTRL_EXT, mac_data);
+
+ /* No MAC DPG gating SLP_S0 in modern standby
+ * Switch the logic of the lanphypc to use PMC counter
+ */
+ mac_data = er32(FEXTNVM5);
+ mac_data |= BIT(7);
+ ew32(FEXTNVM5, mac_data);
+}
+
+static void e1000e_s0ix_exit_flow(struct e1000_adapter *adapter)
+{
+ struct e1000_hw *hw = &adapter->hw;
+ u32 mac_data;
+ u16 phy_data;
+
+ /* Disable the Dynamic Power Gating in the MAC */
+ mac_data = er32(FEXTNVM7);
+ mac_data &= 0xFFBFFFFF;
+ ew32(FEXTNVM7, mac_data);
+
+ /* Enable the time synchronization clock */
+ mac_data = er32(FEXTNVM7);
+ mac_data |= BIT(0);
+ ew32(FEXTNVM7, mac_data);
+
+ /* Disable mPHY power gating for any link and speed */
+ mac_data = er32(FEXTNVM8);
+ mac_data &= ~BIT(9);
+ ew32(FEXTNVM8, mac_data);
+
+ /* Disable K1 off */
+ mac_data = er32(FEXTNVM6);
+ mac_data &= ~BIT(31);
+ ew32(FEXTNVM12, mac_data);
+
+ /* Disable Ungate PGCB clock */
+ mac_data = er32(FEXTNVM9);
+ mac_data &= ~BIT(28);
+ ew32(FEXTNVM9, mac_data);
+
+ /* Cancel not waking from dynamic
+ * Power Gating with clock request
+ */
+ mac_data = er32(FEXTNVM12);
+ mac_data &= ~BIT(12);
+ ew32(FEXTNVM12, mac_data);
+
+ /* Cancel disable disconnected cable conditioning
+ * for Power Gating
+ */
+ mac_data = er32(DPGFR);
+ mac_data &= ~BIT(2);
+ ew32(DPGFR, mac_data);
+
+ /* Disable Dynamic Power Gating */
+ mac_data = er32(CTRL_EXT);
+ mac_data &= 0xFFFFFFF7;
+ ew32(CTRL_EXT, mac_data);
+
+ /* Disable the Dynamic Clock Gating in the DMA and MAC */
+ mac_data = er32(CTRL_EXT);
+ mac_data &= 0xFFF7FFFF;
+ ew32(CTRL_EXT, mac_data);
+
+ /* Revert the lanphypc logic to use the internal Gbe counter
+ * and not the PMC counter
+ */
+ mac_data = er32(FEXTNVM5);
+ mac_data &= 0xFFFFFF7F;
+ ew32(FEXTNVM5, mac_data);
+
+ /* Enable the periodic inband message,
+ * Request PCIe clock in K1 page770_17[10:9] =01b
+ */
+ e1e_rphy(hw, HV_PM_CTRL, &phy_data);
+ phy_data &= 0xFBFF;
+ phy_data |= HV_PM_CTRL_K1_CLK_REQ;
+ e1e_wphy(hw, HV_PM_CTRL, phy_data);
+
+ /* Return back configuration
+ * 772_29[5] = 0 CS_Mode_Stay_In_K1
+ */
+ e1e_rphy(hw, I217_CGFREG, &phy_data);
+ phy_data &= 0xFFDF;
+ e1e_wphy(hw, I217_CGFREG, phy_data);
+
+ /* Change the MAC/PHY interface to Kumeran
+ * Unforce the SMBus in PHY page769_23[0] = 0
+ * Unforce the SMBus in MAC CTRL_EXT[11] = 0
+ */
+ e1e_rphy(hw, CV_SMB_CTRL, &phy_data);
+ phy_data &= ~CV_SMB_CTRL_FORCE_SMBUS;
+ e1e_wphy(hw, CV_SMB_CTRL, phy_data);
+ mac_data = er32(CTRL_EXT);
+ mac_data &= ~E1000_CTRL_EXT_FORCE_SMBUS;
+ ew32(CTRL_EXT, mac_data);
+}
+
+static int e1000e_pm_freeze(struct device *dev)
+{
+ struct net_device *netdev = dev_get_drvdata(dev);
+ struct e1000_adapter *adapter = netdev_priv(netdev);
+ bool present;
+
+ rtnl_lock();
+
+ present = netif_device_present(netdev);
+ netif_device_detach(netdev);
+
+ if (present && netif_running(netdev)) {
+ int count = E1000_CHECK_RESET_COUNT;
+
+ while (test_bit(__E1000_RESETTING, &adapter->state) && count--)
+ usleep_range(10000, 11000);
+ WARN_ON(test_bit(__E1000_RESETTING, &adapter->state));
+
+ /* Quiesce the device without resetting the hardware */
+ e1000e_down(adapter, false);
+ e1000_free_irq(adapter);
+ }
+
+ rtnl_unlock();
+
+ e1000e_reset_interrupt_capability(adapter);
+
+ /* Allow time for pending master requests to run */
+ e1000e_disable_pcie_master(&adapter->hw);
+
+ return 0;
+}
+
+static int __e1000_shutdown(struct pci_dev *pdev, bool runtime)
+{
+ struct net_device *netdev = pci_get_drvdata(pdev);
+ struct e1000_adapter *adapter = netdev_priv(netdev);
+ struct e1000_hw *hw = &adapter->hw;
+ u32 ctrl, ctrl_ext, rctl, status;
+ /* Runtime suspend should only enable wakeup for link changes */
+ u32 wufc = runtime ? E1000_WUFC_LNKC : adapter->wol;
+ int retval = 0;
+
+#ifdef USE_LEGACY_PM_SUPPORT
+ retval = pci_save_state(pdev);
+ if (retval)
+ return retval;
+
+#endif
+ status = er32(STATUS);
+ if (status & E1000_STATUS_LU)
+ wufc &= ~E1000_WUFC_LNKC;
+
+ if (wufc) {
+ e1000_setup_rctl(adapter);
+ e1000e_set_rx_mode(netdev);
+
+ /* turn on all-multi mode if wake on multicast is enabled */
+ if (wufc & E1000_WUFC_MC) {
+ rctl = er32(RCTL);
+ rctl |= E1000_RCTL_MPE;
+ ew32(RCTL, rctl);
+ }
+
+ ctrl = er32(CTRL);
+ ctrl |= E1000_CTRL_ADVD3WUC;
+ if (!(adapter->flags2 & FLAG2_HAS_PHY_WAKEUP))
+ ctrl |= E1000_CTRL_EN_PHY_PWR_MGMT;
+ ew32(CTRL, ctrl);
+
+ if (adapter->hw.phy.media_type == e1000_media_type_fiber ||
+ adapter->hw.phy.media_type ==
+ e1000_media_type_internal_serdes) {
+ /* keep the laser running in D3 */
+ ctrl_ext = er32(CTRL_EXT);
+ ctrl_ext |= E1000_CTRL_EXT_SDP3_DATA;
+ ew32(CTRL_EXT, ctrl_ext);
+ }
+
+ if (!runtime)
+ e1000e_power_up_phy(adapter);
+
+ if (adapter->flags & FLAG_IS_ICH)
+ e1000_suspend_workarounds_ich8lan(&adapter->hw);
+
+ if (adapter->flags2 & FLAG2_HAS_PHY_WAKEUP) {
+ /* enable wakeup by the PHY */
+ retval = e1000_init_phy_wakeup(adapter, wufc);
+ if (retval)
+ return retval;
+ } else {
+ /* enable wakeup by the MAC */
+ ew32(WUFC, wufc);
+ ew32(WUC, E1000_WUC_PME_EN);
+ }
+ } else {
+ ew32(WUC, 0);
+ ew32(WUFC, 0);
+
+ e1000_power_down_phy(adapter);
+ }
+
+ if (adapter->hw.phy.type == e1000_phy_igp_3) {
+ e1000e_igp3_phy_powerdown_workaround_ich8lan(&adapter->hw);
+ } else if (hw->mac.type >= e1000_pch_lpt) {
+ if (!(wufc & (E1000_WUFC_EX | E1000_WUFC_MC | E1000_WUFC_BC)))
+ /* ULP does not support wake from unicast, multicast
+ * or broadcast.
+ */
+ retval = e1000_enable_ulp_lpt_lp(hw, !runtime);
+
+ if (retval)
+ return retval;
+ }
+
+ /* Ensure that the appropriate bits are set in LPI_CTRL
+ * for EEE in Sx
+ */
+ if ((hw->phy.type >= e1000_phy_i217) &&
+ adapter->eee_advert && hw->dev_spec.ich8lan.eee_lp_ability) {
+ u16 lpi_ctrl = 0;
+
+ retval = hw->phy.ops.acquire(hw);
+ if (!retval) {
+ retval = e1e_rphy_locked(hw, I82579_LPI_CTRL,
+ &lpi_ctrl);
+ if (!retval) {
+ if (adapter->eee_advert &
+ hw->dev_spec.ich8lan.eee_lp_ability &
+ I82579_EEE_100_SUPPORTED)
+ lpi_ctrl |= I82579_LPI_CTRL_100_ENABLE;
+ if (adapter->eee_advert &
+ hw->dev_spec.ich8lan.eee_lp_ability &
+ I82579_EEE_1000_SUPPORTED)
+ lpi_ctrl |= I82579_LPI_CTRL_1000_ENABLE;
+
+ retval = e1e_wphy_locked(hw, I82579_LPI_CTRL,
+ lpi_ctrl);
+ }
+ }
+ hw->phy.ops.release(hw);
+ }
+
+ /* Release control of h/w to f/w. If f/w is AMT enabled, this
+ * would have already happened in close and is redundant.
+ */
+ e1000e_release_hw_control(adapter);
+
+#ifdef USE_LEGACY_PM_SUPPORT
+ pci_disable_device(pdev);
+#else
+ pci_clear_master(pdev);
+#endif
+
+ /* The pci-e switch on some quad port adapters will report a
+ * correctable error when the MAC transitions from D0 to D3. To
+ * prevent this we need to mask off the correctable errors on the
+ * downstream port of the pci-e switch.
+ *
+ * We don't have the associated upstream bridge while assigning
+ * the PCI device into guest. For example, the KVM on power is
+ * one of the cases.
+ */
+ if (adapter->flags & FLAG_IS_QUAD_PORT) {
+ struct pci_dev *us_dev = pdev->bus->self;
+ u16 devctl;
+
+ if (!us_dev)
+ return 0;
+
+ pcie_capability_read_word(us_dev, PCI_EXP_DEVCTL, &devctl);
+ pcie_capability_write_word(us_dev, PCI_EXP_DEVCTL,
+ (devctl & ~PCI_EXP_DEVCTL_CERE));
+
+ pci_save_state(pdev);
+ pci_prepare_to_sleep(pdev);
+
+ pcie_capability_write_word(us_dev, PCI_EXP_DEVCTL, devctl);
+ }
+#ifdef USE_LEGACY_PM_SUPPORT
+ else
+ pci_prepare_to_sleep(pdev);
+#endif
+
+ return 0;
+}
+
+/**
+ * __e1000e_disable_aspm - Disable ASPM states
+ * @pdev: pointer to PCI device struct
+ * @state: bit-mask of ASPM states to disable
+ * @locked: indication if this context holds pci_bus_sem locked.
+ *
+ * Some devices *must* have certain ASPM states disabled per hardware errata.
+ **/
+static void __e1000e_disable_aspm(struct pci_dev *pdev, u16 state, int locked)
+{
+ struct pci_dev *parent = pdev->bus->self;
+ u16 aspm_dis_mask = 0;
+ u16 pdev_aspmc, parent_aspmc;
+
+ switch (state) {
+ case PCIE_LINK_STATE_L0S:
+ case PCIE_LINK_STATE_L0S | PCIE_LINK_STATE_L1:
+ aspm_dis_mask |= PCI_EXP_LNKCTL_ASPM_L0S;
+ /* fall-through - can't have L1 without L0s */
+ case PCIE_LINK_STATE_L1:
+ aspm_dis_mask |= PCI_EXP_LNKCTL_ASPM_L1;
+ break;
+ default:
+ return;
+ }
+
+ pcie_capability_read_word(pdev, PCI_EXP_LNKCTL, &pdev_aspmc);
+ pdev_aspmc &= PCI_EXP_LNKCTL_ASPMC;
+
+ if (parent) {
+ pcie_capability_read_word(parent, PCI_EXP_LNKCTL,
+ &parent_aspmc);
+ parent_aspmc &= PCI_EXP_LNKCTL_ASPMC;
+ }
+
+ /* Nothing to do if the ASPM states to be disabled already are */
+ if (!(pdev_aspmc & aspm_dis_mask) &&
+ (!parent || !(parent_aspmc & aspm_dis_mask)))
+ return;
+
+ dev_info(&pdev->dev, "Disabling ASPM %s %s\n",
+ (aspm_dis_mask & pdev_aspmc & PCI_EXP_LNKCTL_ASPM_L0S) ?
+ "L0s" : "",
+ (aspm_dis_mask & pdev_aspmc & PCI_EXP_LNKCTL_ASPM_L1) ?
+ "L1" : "");
+
+#ifdef CONFIG_PCIEASPM
+ if (locked)
+ pci_disable_link_state_locked(pdev, state);
+ else
+ pci_disable_link_state(pdev, state);
+
+ /* Double-check ASPM control. If not disabled by the above, the
+ * BIOS is preventing that from happening (or CONFIG_PCIEASPM is
+ * not enabled); override by writing PCI config space directly.
+ */
+ pcie_capability_read_word(pdev, PCI_EXP_LNKCTL, &pdev_aspmc);
+ pdev_aspmc &= PCI_EXP_LNKCTL_ASPMC;
+
+ if (!(aspm_dis_mask & pdev_aspmc))
+ return;
+#endif
+
+ /* Both device and parent should have the same ASPM setting.
+ * Disable ASPM in downstream component first and then upstream.
+ */
+ pcie_capability_clear_word(pdev, PCI_EXP_LNKCTL, aspm_dis_mask);
+
+ if (parent)
+ pcie_capability_clear_word(parent, PCI_EXP_LNKCTL,
+ aspm_dis_mask);
+}
+
+/**
+ * e1000e_disable_aspm - Disable ASPM states.
+ * @pdev: pointer to PCI device struct
+ * @state: bit-mask of ASPM states to disable
+ *
+ * This function acquires the pci_bus_sem!
+ * Some devices *must* have certain ASPM states disabled per hardware errata.
+ **/
+static void e1000e_disable_aspm(struct pci_dev *pdev, u16 state)
+{
+ __e1000e_disable_aspm(pdev, state, 0);
+}
+
+/**
+ * e1000e_disable_aspm_locked Disable ASPM states.
+ * @pdev: pointer to PCI device struct
+ * @state: bit-mask of ASPM states to disable
+ *
+ * This function must be called with pci_bus_sem acquired!
+ * Some devices *must* have certain ASPM states disabled per hardware errata.
+ **/
+static void e1000e_disable_aspm_locked(struct pci_dev *pdev, u16 state)
+{
+ __e1000e_disable_aspm(pdev, state, 1);
+}
+
+#ifdef CONFIG_PM
+static int __e1000_resume(struct pci_dev *pdev)
+{
+ struct net_device *netdev = pci_get_drvdata(pdev);
+ struct e1000_adapter *adapter = netdev_priv(netdev);
+ struct e1000_hw *hw = &adapter->hw;
+ u16 aspm_disable_flag = 0;
+#ifdef USE_LEGACY_PM_SUPPORT
+ u32 err;
+#endif
+
+ if (adapter->flags2 & FLAG2_DISABLE_ASPM_L0S)
+ aspm_disable_flag = PCIE_LINK_STATE_L0S;
+ if (adapter->flags2 & FLAG2_DISABLE_ASPM_L1)
+ aspm_disable_flag |= PCIE_LINK_STATE_L1;
+ if (aspm_disable_flag)
+ e1000e_disable_aspm(pdev, aspm_disable_flag);
+
+#ifdef USE_LEGACY_PM_SUPPORT
+ pci_set_power_state(pdev, PCI_D0);
+ pci_restore_state(pdev);
+ pci_save_state(pdev);
+
+ err = pci_enable_device_mem(pdev);
+ if (err) {
+ dev_err(pci_dev_to_dev(pdev),
+ "Cannot enable PCI device from suspend\n");
+ return err;
+ }
+
+ pci_set_master(pdev);
+
+ pci_enable_wake(pdev, PCI_D3hot, 0);
+ pci_enable_wake(pdev, PCI_D3cold, 0);
+#else /* USE_LEGACY_PM_SUPPORT */
+ pci_set_master(pdev);
+#endif /* USE_LEGACY_PM_SUPPORT */
+
+ if (hw->mac.type >= e1000_pch2lan)
+ e1000_resume_workarounds_pchlan(&adapter->hw);
+
+ e1000e_power_up_phy(adapter);
+
+ /* report the system wakeup cause from S3/S4 */
+ if (adapter->flags2 & FLAG2_HAS_PHY_WAKEUP) {
+ u16 phy_data;
+
+ e1e_rphy(&adapter->hw, BM_WUS, &phy_data);
+ if (phy_data) {
+ e_info("PHY Wakeup cause - %s\n",
+ phy_data & E1000_WUS_EX ? "Unicast Packet" :
+ phy_data & E1000_WUS_MC ? "Multicast Packet" :
+ phy_data & E1000_WUS_BC ? "Broadcast Packet" :
+ phy_data & E1000_WUS_MAG ? "Magic Packet" :
+ phy_data & E1000_WUS_LNKC ?
+ "Link Status Change" : "other");
+ }
+ e1e_wphy(&adapter->hw, BM_WUS, ~0);
+ } else {
+ u32 wus = er32(WUS);
+
+ if (wus) {
+ e_info("MAC Wakeup cause - %s\n",
+ wus & E1000_WUS_EX ? "Unicast Packet" :
+ wus & E1000_WUS_MC ? "Multicast Packet" :
+ wus & E1000_WUS_BC ? "Broadcast Packet" :
+ wus & E1000_WUS_MAG ? "Magic Packet" :
+ wus & E1000_WUS_LNKC ? "Link Status Change" :
+ "other");
+ }
+ ew32(WUS, ~0);
+ }
+
+ e1000e_reset(adapter);
+
+ e1000_init_manageability_pt(adapter);
+
+ /* If the controller has AMT, do not set DRV_LOAD until the interface
+ * is up. For all other cases, let the f/w know that the h/w is now
+ * under the control of the driver.
+ */
+ if (!(adapter->flags & FLAG_HAS_AMT))
+ e1000e_get_hw_control(adapter);
+
+ return 0;
+}
+
+static int e1000e_pm_thaw(struct device *dev)
+{
+ struct net_device *netdev = dev_get_drvdata(dev);
+ struct e1000_adapter *adapter = netdev_priv(netdev);
+ int rc = 0;
+
+ e1000e_set_interrupt_capability(adapter);
+
+ rtnl_lock();
+ if (netif_running(netdev)) {
+ rc = e1000_request_irq(adapter);
+ if (rc)
+ goto err_irq;
+
+ e1000e_up(adapter);
+ }
+
+ netif_device_attach(netdev);
+err_irq:
+ rtnl_unlock();
+
+ return rc;
+}
+
+#ifdef CONFIG_PM
+#ifndef USE_LEGACY_PM_SUPPORT
+static int e1000e_pm_suspend(struct device *dev)
+#else
+static int e1000e_pm_suspend(struct pci_dev *pdev, pm_message_t state)
+#endif /* USE_LEGACY_PM_SUPPORT */
+{
+#ifndef USE_LEGACY_PM_SUPPORT
+ struct pci_dev *pdev = to_pci_dev(dev);
+ struct net_device *netdev = pci_get_drvdata(to_pci_dev(dev));
+ struct e1000_adapter *adapter = netdev_priv(netdev);
+ struct e1000_hw *hw = &adapter->hw;
+ int rc;
+
+ e1000e_flush_lpic(pdev);
+
+ e1000e_pm_freeze(dev);
+
+ rc = __e1000_shutdown(pdev, false);
+ if (rc)
+ e1000e_pm_thaw(dev);
+
+ /* Introduce S0ix implementation */
+ if (hw->mac.type >= e1000_pch_cnp)
+ e1000e_s0ix_entry_flow(adapter);
+
+ return rc;
+#else
+ e1000e_flush_lpic(pdev);
+
+ e1000e_pm_freeze(pci_dev_to_dev(pdev));
+ return __e1000_shutdown(pdev, false);
+#endif /* USE_LEGACY_PM_SUPPORT */
+}
+
+#ifndef USE_LEGACY_PM_SUPPORT
+static int e1000e_pm_resume(struct device *dev)
+#else
+static int e1000e_pm_resume(struct pci_dev *pdev)
+#endif
+{
+ struct net_device *netdev = pci_get_drvdata(to_pci_dev(dev));
+ struct e1000_adapter *adapter = netdev_priv(netdev);
+#ifndef USE_LEGACY_PM_SUPPORT
+ struct pci_dev *pdev = to_pci_dev(dev);
+#endif
+ struct e1000_hw *hw = &adapter->hw;
+ int rc;
+
+ /* Introduce S0ix implementation */
+ if (hw->mac.type >= e1000_pch_cnp)
+ e1000e_s0ix_exit_flow(adapter);
+
+ rc = __e1000_resume(pdev);
+ if (rc)
+ return rc;
+
+#ifndef USE_LEGACY_PM_SUPPORT
+ return e1000e_pm_thaw(dev);
+#else
+ return e1000e_pm_thaw(pci_dev_to_dev(pdev));
+#endif
+}
+#endif /* CONFIG_PM */
+
+#ifndef USE_LEGACY_PM_SUPPORT
+#ifdef HAVE_CONFIG_PM_RUNTIME
+#ifdef CONFIG_PM_RUNTIME
+static int e1000e_pm_runtime_idle(struct device *dev)
+{
+ struct net_device *netdev = dev_get_drvdata(dev);
+ struct e1000_adapter *adapter = netdev_priv(netdev);
+ u16 eee_lp;
+
+ eee_lp = adapter->hw.dev_spec.ich8lan.eee_lp_ability;
+
+ if (!e1000e_has_link(adapter)) {
+ adapter->hw.dev_spec.ich8lan.eee_lp_ability = eee_lp;
+ pm_schedule_suspend(dev, 5 * MSEC_PER_SEC);
+ }
+
+ return -EBUSY;
+}
+
+static int e1000e_pm_runtime_resume(struct device *dev)
+{
+ struct pci_dev *pdev = to_pci_dev(dev);
+ struct net_device *netdev = pci_get_drvdata(pdev);
+ struct e1000_adapter *adapter = netdev_priv(netdev);
+ int rc;
+
+ rc = __e1000_resume(pdev);
+ if (rc)
+ return rc;
+
+ if (netdev->flags & IFF_UP)
+ e1000e_up(adapter);
+
+ return rc;
+}
+
+static int e1000e_pm_runtime_suspend(struct device *dev)
+{
+ struct pci_dev *pdev = to_pci_dev(dev);
+ struct net_device *netdev = pci_get_drvdata(pdev);
+ struct e1000_adapter *adapter = netdev_priv(netdev);
+
+ if (netdev->flags & IFF_UP) {
+ int count = E1000_CHECK_RESET_COUNT;
+
+ while (test_bit(__E1000_RESETTING, &adapter->state) && count--)
+ usleep_range(10000, 11000);
+ WARN_ON(test_bit(__E1000_RESETTING, &adapter->state));
+
+ /* Down the device without resetting the hardware */
+ e1000e_down(adapter, false);
+ }
+
+ if (__e1000_shutdown(pdev, true)) {
+ e1000e_pm_runtime_resume(dev);
+ return -EBUSY;
+ }
+
+ return 0;
+}
+#endif /* CONFIG_PM_RUNTIME */
+#else /* ! HAVE_CONFIG_PM_RUNTIME: unconditional since we are already under CONFIG_PM */
+static int e1000e_pm_runtime_idle(struct device *dev)
+{
+ struct pci_dev *pdev = to_pci_dev(dev);
+ struct net_device *netdev = pci_get_drvdata(pdev);
+ struct e1000_adapter *adapter = netdev_priv(netdev);
+ u16 eee_lp;
+
+ eee_lp = adapter->hw.dev_spec.ich8lan.eee_lp_ability;
+
+ if (!e1000e_has_link(adapter)) {
+ adapter->hw.dev_spec.ich8lan.eee_lp_ability = eee_lp;
+ pm_schedule_suspend(dev, 5 * MSEC_PER_SEC);
+ }
+
+ return -EBUSY;
+}
+
+static int e1000e_pm_runtime_resume(struct device *dev)
+{
+ struct pci_dev *pdev = to_pci_dev(dev);
+ struct net_device *netdev = pci_get_drvdata(pdev);
+ struct e1000_adapter *adapter = netdev_priv(netdev);
+ int rc;
+
+ rc = __e1000_resume(pdev);
+ if (rc)
+ return rc;
+
+ if (netdev->flags & IFF_UP)
+ e1000e_up(adapter);
+
+ return rc;
+}
+
+static int e1000e_pm_runtime_suspend(struct device *dev)
+{
+ struct pci_dev *pdev = to_pci_dev(dev);
+ struct net_device *netdev = pci_get_drvdata(pdev);
+ struct e1000_adapter *adapter = netdev_priv(netdev);
+
+ if (netdev->flags & IFF_UP) {
+ int count = E1000_CHECK_RESET_COUNT;
+
+ while (test_bit(__E1000_RESETTING, &adapter->state) && count--)
+ usleep_range(10000, 20000);
+
+ WARN_ON(test_bit(__E1000_RESETTING, &adapter->state));
+
+ /* Down the device without resetting the hardware */
+ e1000e_down(adapter, false);
+ }
+
+ if (__e1000_shutdown(pdev, true)) {
+ e1000e_pm_runtime_resume(dev);
+ return -EBUSY;
+ }
+
+ return 0;
+}
+#endif /* ! HAVE_CONFIG_PM_RUNTIME */
+#endif /* USE_LEGACY_PM_SUPPORT */
+#endif /* CONFIG_PM */
+
+#ifndef USE_REBOOT_NOTIFIER
+static void e1000_shutdown(struct pci_dev *pdev)
+{
+ e1000e_flush_lpic(pdev);
+
+ e1000e_pm_freeze(&pdev->dev);
+
+ __e1000_shutdown(pdev, false);
+}
+#else
+static struct pci_driver e1000_driver;
+static int e1000_notify_reboot(struct notifier_block *nb, unsigned long event,
+ void *ptr)
+{
+ struct pci_dev *pdev = NULL;
+
+ switch (event) {
+ case SYS_DOWN:
+ case SYS_HALT:
+ case SYS_POWER_OFF:
+ while ((pdev = pci_find_device(PCI_ANY_ID, PCI_ANY_ID, pdev))) {
+ if (pci_dev_driver(pdev) == &e1000_driver) {
+ e1000e_pm_freeze(pci_dev_to_dev(pdev));
+ __e1000_shutdown(pdev, false);
+ }
+ }
+ break;
+ }
+ return NOTIFY_DONE;
+}
+
+static struct notifier_block e1000_notifier_reboot = {
+ .notifier_call = e1000_notify_reboot,
+ .next = NULL,
+ .priority = 0
+};
+#endif /* USE_REBOOT_NOTIFIER */
+
+#ifdef CONFIG_NET_POLL_CONTROLLER
+
+static irqreturn_t e1000_intr_msix(int __always_unused irq, void *data)
+{
+ struct net_device *netdev = data;
+ struct e1000_adapter *adapter = netdev_priv(netdev);
+
+ if (adapter->msix_entries) {
+ int vector, msix_irq;
+
+ vector = 0;
+ msix_irq = adapter->msix_entries[vector].vector;
+ disable_irq(msix_irq);
+ e1000_intr_msix_rx(msix_irq, netdev);
+ enable_irq(msix_irq);
+
+ vector++;
+ msix_irq = adapter->msix_entries[vector].vector;
+ disable_irq(msix_irq);
+ e1000_intr_msix_tx(msix_irq, netdev);
+ enable_irq(msix_irq);
+
+ vector++;
+ msix_irq = adapter->msix_entries[vector].vector;
+ disable_irq(msix_irq);
+ e1000_msix_other(msix_irq, netdev);
+ enable_irq(msix_irq);
+ }
+
+ return IRQ_HANDLED;
+}
+
+/**
+ * e1000_netpoll
+ * @netdev: network interface device structure
+ *
+ * Polling 'interrupt' - used by things like netconsole to send skbs
+ * without having to re-enable interrupts. It's not called while
+ * the interrupt routine is executing.
+ */
+static void e1000_netpoll(struct net_device *netdev)
+{
+ struct e1000_adapter *adapter = netdev_priv(netdev);
+
+ switch (adapter->int_mode) {
+ case E1000E_INT_MODE_MSIX:
+ e1000_intr_msix(adapter->pdev->irq, netdev);
+ break;
+ case E1000E_INT_MODE_MSI:
+ disable_irq(adapter->pdev->irq);
+ e1000_intr_msi(adapter->pdev->irq, netdev);
+ enable_irq(adapter->pdev->irq);
+ break;
+ default: /* E1000E_INT_MODE_LEGACY */
+ disable_irq(adapter->pdev->irq);
+ e1000_intr(adapter->pdev->irq, netdev);
+ enable_irq(adapter->pdev->irq);
+ break;
+ }
+}
+#endif
+
+#ifdef HAVE_PCI_ERS
+/**
+ * e1000_io_error_detected - called when PCI error is detected
+ * @pdev: Pointer to PCI device
+ * @state: The current pci connection state
+ *
+ * This function is called after a PCI bus error affecting
+ * this device has been detected.
+ */
+static pci_ers_result_t e1000_io_error_detected(struct pci_dev *pdev,
+ pci_channel_state_t state)
+{
+ e1000e_pm_freeze(&pdev->dev);
+ if (state == pci_channel_io_perm_failure)
+ return PCI_ERS_RESULT_DISCONNECT;
+
+ pci_disable_device(pdev);
+
+ /* Request a slot slot reset. */
+ return PCI_ERS_RESULT_NEED_RESET;
+}
+
+/**
+ * e1000_io_slot_reset - called after the pci bus has been reset.
+ * @pdev: Pointer to PCI device
+ *
+ * Restart the card from scratch, as if from a cold-boot. Implementation
+ * resembles the first-half of the e1000e_pm_resume routine.
+ */
+static pci_ers_result_t e1000_io_slot_reset(struct pci_dev *pdev)
+{
+ struct net_device *netdev = pci_get_drvdata(pdev);
+ struct e1000_adapter *adapter = netdev_priv(netdev);
+ struct e1000_hw *hw = &adapter->hw;
+ u16 aspm_disable_flag = 0;
+ int err;
+ pci_ers_result_t result;
+
+ if (adapter->flags2 & FLAG2_DISABLE_ASPM_L0S)
+ aspm_disable_flag = PCIE_LINK_STATE_L0S;
+ if (adapter->flags2 & FLAG2_DISABLE_ASPM_L1)
+ aspm_disable_flag |= PCIE_LINK_STATE_L1;
+ if (aspm_disable_flag)
+ e1000e_disable_aspm_locked(pdev, aspm_disable_flag);
+
+ err = pci_enable_device_mem(pdev);
+ if (err) {
+ dev_err(pci_dev_to_dev(pdev),
+ "Cannot re-enable PCI device after reset.\n");
+ result = PCI_ERS_RESULT_DISCONNECT;
+ } else {
+ pci_restore_state(pdev);
+ pci_set_master(pdev);
+ pci_save_state(pdev);
+
+ pci_enable_wake(pdev, PCI_D3hot, 0);
+ pci_enable_wake(pdev, PCI_D3cold, 0);
+
+ e1000e_reset(adapter);
+ ew32(WUS, ~0);
+ result = PCI_ERS_RESULT_RECOVERED;
+ }
+
+ return result;
+}
+
+/**
+ * e1000_io_resume - called when traffic can start flowing again.
+ * @pdev: Pointer to PCI device
+ *
+ * This callback is called when the error recovery driver tells us that
+ * its OK to resume normal operation. Implementation resembles the
+ * second-half of the e1000e_pm_resume routine.
+ */
+static void e1000_io_resume(struct pci_dev *pdev)
+{
+ struct net_device *netdev = pci_get_drvdata(pdev);
+ struct e1000_adapter *adapter = netdev_priv(netdev);
+
+ e1000_init_manageability_pt(adapter);
+
+ e1000e_pm_thaw(&pdev->dev);
+
+ /* If the controller has AMT, do not set DRV_LOAD until the interface
+ * is up. For all other cases, let the f/w know that the h/w is now
+ * under the control of the driver.
+ */
+ if (!(adapter->flags & FLAG_HAS_AMT))
+ e1000e_get_hw_control(adapter);
+}
+#endif /* HAVE_PCI_ERS */
+
+static void e1000_print_device_info(struct e1000_adapter *adapter)
+{
+ struct e1000_hw *hw = &adapter->hw;
+ struct net_device *netdev = adapter->netdev;
+ u32 ret_val;
+ u8 pba_str[E1000_PBANUM_LENGTH];
+
+ /* print bus type/speed/width info */
+ e_info("(PCI Express:2.5GT/s:%s) %02x:%02x:%02x:%02x:%02x:%02x\n",
+ /* bus width */
+ ((hw->bus.width == e1000_bus_width_pcie_x4) ? "Width x4" :
+ "Width x1"),
+ /* MAC address */
+ netdev->dev_addr[0], netdev->dev_addr[1],
+ netdev->dev_addr[2], netdev->dev_addr[3],
+ netdev->dev_addr[4], netdev->dev_addr[5]);
+ e_info("Intel(R) PRO/%s Network Connection\n",
+ (hw->phy.type == e1000_phy_ife) ? "10/100" : "1000");
+ ret_val = e1000_read_pba_string_generic(hw, pba_str,
+ E1000_PBANUM_LENGTH);
+ if (ret_val)
+ strlcpy((char *)pba_str, "Unknown", sizeof(pba_str));
+ e_info("MAC: %d, PHY: %d, PBA No: %s\n",
+ hw->mac.type, hw->phy.type, pba_str);
+}
+
+static void e1000_eeprom_checks(struct e1000_adapter *adapter)
+{
+ struct e1000_hw *hw = &adapter->hw;
+ int ret_val;
+ u16 buf = 0;
+
+ if (hw->mac.type != e1000_82573)
+ return;
+
+ ret_val = e1000_read_nvm(hw, NVM_INIT_CONTROL2_REG, 1, &buf);
+ le16_to_cpus(&buf);
+ if (!ret_val && (!(buf & BIT(0)))) {
+ /* Deep Smart Power Down (DSPD) */
+ dev_warn(pci_dev_to_dev(adapter->pdev),
+ "Warning: detected DSPD enabled in EEPROM\n");
+ }
+}
+
+#if defined(HAVE_NDO_SET_FEATURES) && !defined(HAVE_RHEL6_NET_DEVICE_OPS_EXT)
+
+static netdev_features_t e1000_fix_features(struct net_device *netdev,
+ netdev_features_t features)
+{
+ struct e1000_adapter *adapter = netdev_priv(netdev);
+ struct e1000_hw *hw = &adapter->hw;
+
+ /* Jumbo frame workaround on 82579 and newer requires CRC be stripped */
+ if ((hw->mac.type >= e1000_pch2lan) && (netdev->mtu > ETH_DATA_LEN))
+ features &= ~NETIF_F_RXFCS;
+
+ /* Since there is no support for separate Rx/Tx vlan accel
+ * enable/disable make sure Tx flag is always in same state as Rx.
+ */
+#ifdef NETIF_F_HW_VLAN_CTAG_RX
+ if (features & NETIF_F_HW_VLAN_CTAG_RX)
+ features |= NETIF_F_HW_VLAN_CTAG_TX;
+ else
+ features &= ~NETIF_F_HW_VLAN_CTAG_TX;
+#endif
+#ifdef NETIF_F_HW_VLAN_RX
+ if (features & NETIF_F_HW_VLAN_RX)
+ features |= NETIF_F_HW_VLAN_TX;
+ else
+ features &= ~NETIF_F_HW_VLAN_TX;
+#endif
+
+ return features;
+}
+
+static int e1000_set_features(struct net_device *netdev,
+ netdev_features_t features)
+{
+ struct e1000_adapter *adapter = netdev_priv(netdev);
+ netdev_features_t changed = features ^ netdev->features;
+
+ if (changed & (NETIF_F_TSO | NETIF_F_TSO6))
+ adapter->flags |= FLAG_TSO_FORCE;
+
+ if (!(changed & (
+#if defined(NETIF_F_HW_VLAN_CTAG_TX)
+ NETIF_F_HW_VLAN_CTAG_RX |
+ NETIF_F_HW_VLAN_CTAG_TX |
+#elif defined(NETIF_F_HW_VLAN_TX)
+ NETIF_F_HW_VLAN_RX | NETIF_F_HW_VLAN_TX |
+#endif
+ NETIF_F_RXCSUM | NETIF_F_RXHASH | NETIF_F_RXFCS
+ | NETIF_F_RXALL)))
+ return 0;
+
+ if (changed & NETIF_F_RXFCS) {
+ if (features & NETIF_F_RXFCS) {
+ adapter->flags2 &= ~FLAG2_CRC_STRIPPING;
+ } else {
+ /* We need to take it back to defaults, which might mean
+ * stripping is still disabled at the adapter level.
+ */
+ if (adapter->flags2 & FLAG2_DFLT_CRC_STRIPPING)
+ adapter->flags2 |= FLAG2_CRC_STRIPPING;
+ else
+ adapter->flags2 &= ~FLAG2_CRC_STRIPPING;
+ }
+ }
+
+ netdev->features = features;
+
+ if (netif_running(netdev))
+ e1000e_reinit_locked(adapter);
+ else
+ e1000e_reset(adapter);
+
+ return 1;
+}
+
+#endif /* HAVE_NDO_SET_FEATURES */
+#ifdef HAVE_NET_DEVICE_OPS
+static const struct net_device_ops e1000e_netdev_ops = {
+ .ndo_open = e1000e_open,
+ .ndo_stop = e1000e_close,
+ .ndo_start_xmit = e1000_xmit_frame,
+#ifdef HAVE_NDO_GET_STATS64
+ .ndo_get_stats64 = e1000e_get_stats64,
+#else /* HAVE_NDO_GET_STATS64 */
+ .ndo_get_stats = e1000_get_stats,
+#endif /* HAVE_NDO_GET_STATS64 */
+ .ndo_set_rx_mode = e1000e_set_rx_mode,
+ .ndo_set_mac_address = e1000_set_mac,
+#ifdef HAVE_RHEL7_EXTENDED_MIN_MAX_MTU
+ .extended.ndo_change_mtu = e1000_change_mtu,
+#else
+ .ndo_change_mtu = e1000_change_mtu,
+#endif
+ .ndo_do_ioctl = e1000_ioctl,
+ .ndo_tx_timeout = e1000_tx_timeout,
+ .ndo_validate_addr = eth_validate_addr,
+
+#if defined(NETIF_F_HW_VLAN_RX) || defined(NETIF_F_HW_VLAN_CTAG_RX)
+#ifdef HAVE_VLAN_RX_REGISTER
+ .ndo_vlan_rx_register = e1000_vlan_rx_register,
+#endif
+ .ndo_vlan_rx_add_vid = e1000_vlan_rx_add_vid,
+ .ndo_vlan_rx_kill_vid = e1000_vlan_rx_kill_vid,
+#endif
+#ifdef CONFIG_NET_POLL_CONTROLLER
+ .ndo_poll_controller = e1000_netpoll,
+#endif
+#if defined(HAVE_NDO_SET_FEATURES) && !defined(HAVE_RHEL6_NET_DEVICE_OPS_EXT)
+ .ndo_set_features = e1000_set_features,
+ .ndo_fix_features = e1000_fix_features,
+#endif /* HAVE_NDO_SET_FEATURES */
+#ifdef HAVE_NDO_FEATURES_CHECK
+#ifdef HAVE_PASSTHRU_FEATURES_CHECK
+ .ndo_features_check = passthru_features_check,
+#endif
+#endif /*HAVE_NDO_FEATURES_CHECK*/
+};
+
+#endif /* HAVE_NET_DEVICE_OPS */
+/**
+ * e1000_probe - Device Initialization Routine
+ * @pdev: PCI device information struct
+ * @ent: entry in e1000_pci_tbl
+ *
+ * Returns 0 on success, negative on failure
+ *
+ * e1000_probe initializes an adapter identified by a pci_dev structure.
+ * The OS initialization, configuring of the adapter private structure,
+ * and a hardware reset occur.
+ **/
+#ifdef HAVE_CONFIG_HOTPLUG
+static int __devinit e1000_probe(struct pci_dev *pdev,
+ const struct pci_device_id *ent)
+#else
+static int e1000_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
+#endif
+{
+ struct net_device *netdev;
+ struct e1000_adapter *adapter;
+ struct e1000_hw *hw;
+ const struct e1000_info *ei = e1000_info_tbl[ent->driver_data];
+ resource_size_t mmio_start, mmio_len;
+ resource_size_t flash_start, flash_len;
+ static int cards_found;
+ u16 aspm_disable_flag = 0;
+ int i, err, pci_using_dac;
+ u16 eeprom_data = 0;
+ u16 eeprom_apme_mask = E1000_EEPROM_APME;
+ s32 ret_val = 0;
+
+ if (ei->flags2 & FLAG2_DISABLE_ASPM_L0S)
+ aspm_disable_flag = PCIE_LINK_STATE_L0S;
+ if (ei->flags2 & FLAG2_DISABLE_ASPM_L1)
+ aspm_disable_flag |= PCIE_LINK_STATE_L1;
+ if (aspm_disable_flag)
+ e1000e_disable_aspm(pdev, aspm_disable_flag);
+
+ err = pci_enable_device_mem(pdev);
+ if (err)
+ return err;
+
+ pci_using_dac = 0;
+ err = dma_set_mask_and_coherent(pci_dev_to_dev(pdev), DMA_BIT_MASK(64));
+ if (!err) {
+ pci_using_dac = 1;
+ } else {
+ err =
+ dma_set_mask_and_coherent(pci_dev_to_dev(pdev),
+ DMA_BIT_MASK(32));
+ if (err) {
+ dev_err(pci_dev_to_dev(pdev),
+ "No usable DMA configuration, aborting\n");
+ goto err_dma;
+ }
+ }
+
+ err = pci_request_selected_regions_exclusive(pdev,
+ pci_select_bars(pdev, IORESOURCE_MEM),
+ e1000e_driver_name);
+ if (err)
+ goto err_pci_reg;
+
+ /* AER (Advanced Error Reporting) hooks */
+ pci_enable_pcie_error_reporting(pdev);
+
+ pci_set_master(pdev);
+
+ err = -ENOMEM;
+ netdev = alloc_etherdev(sizeof(struct e1000_adapter));
+ if (!netdev)
+ goto err_alloc_etherdev;
+
+ SET_MODULE_OWNER(netdev);
+ SET_NETDEV_DEV(netdev, pci_dev_to_dev(pdev));
+
+ netdev->irq = pdev->irq;
+
+ pci_set_drvdata(pdev, netdev);
+#ifdef HAVE_PCI_ERS
+ /* PCI config space info */
+ err = pci_save_state(pdev);
+ if (err)
+ goto err_ioremap;
+#endif /* HAVE_PCI_ERS */
+ adapter = netdev_priv(netdev);
+ hw = &adapter->hw;
+ adapter->node = -1;
+ adapter->netdev = netdev;
+ adapter->pdev = pdev;
+ adapter->ei = ei;
+ adapter->pba = ei->pba;
+ adapter->flags = ei->flags;
+ adapter->flags2 = ei->flags2;
+ adapter->hw.adapter = adapter;
+ adapter->hw.mac.type = ei->mac;
+ adapter->max_hw_frame_size = ei->max_hw_frame_size;
+ adapter->msg_enable = netif_msg_init(debug, DEFAULT_MSG_ENABLE);
+
+ /* Workaround FLR issues for 82579
+ * This code disables the FLR (Function Level Reset) via PCIe, in order
+ * to workaround a bug found while using device passthrough, where the
+ * interface would become non-responsive.
+ * NOTE: the FLR bit is Read/Write Once (RWO) in config space, so if
+ * the BIOS or kernel writes this register * then this workaround will
+ * not work.
+ */
+ if (hw->mac.type == e1000_pch2lan) {
+ int pos = pci_find_capability(pdev, PCI_CAP_ID_AF);
+
+ if (pos) {
+ u8 cap;
+
+ pci_read_config_byte(pdev, pos + PCI_AF_CAP, &cap);
+ cap = cap & (~PCI_AF_CAP_FLR);
+ pci_write_config_byte(pdev, pos + PCI_AF_CAP, cap);
+ } else {
+ e_info("PCI AF capability not found\n");
+ }
+ }
+
+ mmio_start = pci_resource_start(pdev, 0);
+ mmio_len = pci_resource_len(pdev, 0);
+
+ err = -EIO;
+ adapter->hw.hw_addr = ioremap(mmio_start, mmio_len);
+ if (!adapter->hw.hw_addr)
+ goto err_ioremap;
+
+ if ((adapter->flags & FLAG_HAS_FLASH) &&
+ (pci_resource_flags(pdev, 1) & IORESOURCE_MEM) &&
+ (hw->mac.type < e1000_pch_spt)) {
+ flash_start = pci_resource_start(pdev, 1);
+ flash_len = pci_resource_len(pdev, 1);
+ adapter->hw.flash_address = ioremap(flash_start, flash_len);
+ if (!adapter->hw.flash_address)
+ goto err_flashmap;
+ }
+
+ /* Set default EEE advertisement */
+ if (adapter->flags2 & FLAG2_HAS_EEE)
+ adapter->eee_advert = MDIO_EEE_100TX | MDIO_EEE_1000T;
+
+ /* construct the net_device struct */
+#ifdef HAVE_NET_DEVICE_OPS
+ netdev->netdev_ops = &e1000e_netdev_ops;
+#else
+ netdev->open = &e1000e_open;
+ netdev->stop = &e1000e_close;
+ netdev->hard_start_xmit = &e1000_xmit_frame;
+ netdev->get_stats = &e1000_get_stats;
+#ifdef HAVE_SET_RX_MODE
+ netdev->set_rx_mode = &e1000e_set_rx_mode;
+#endif
+ netdev->set_multicast_list = &e1000e_set_rx_mode;
+ netdev->set_mac_address = &e1000_set_mac;
+ netdev->change_mtu = &e1000_change_mtu;
+ netdev->do_ioctl = &e1000_ioctl;
+ netdev->tx_timeout = &e1000_tx_timeout;
+#ifdef NETIF_F_HW_VLAN_RX
+ netdev->vlan_rx_register = e1000_vlan_rx_register;
+ netdev->vlan_rx_add_vid = e1000_vlan_rx_add_vid;
+ netdev->vlan_rx_kill_vid = e1000_vlan_rx_kill_vid;
+#endif
+#ifdef CONFIG_NET_POLL_CONTROLLER
+ netdev->poll_controller = e1000_netpoll;
+#endif
+#endif /* HAVE_NET_DEVICE_OPS */
+ e1000e_set_ethtool_ops(netdev);
+ netdev->watchdog_timeo = 5 * HZ;
+#ifdef CONFIG_E1000E_NAPI
+ netif_napi_add(netdev, &adapter->napi, e1000e_poll, 64);
+#endif
+ strlcpy(netdev->name, pci_name(pdev), sizeof(netdev->name));
+
+ netdev->mem_start = mmio_start;
+ netdev->mem_end = mmio_start + mmio_len;
+
+ adapter->bd_number = cards_found++;
+
+ e1000e_check_options(adapter);
+
+ if (adapter->node >= 0)
+ dev_info(pci_dev_to_dev(pdev),
+ "Using NUMA node %d for memory allocations\n",
+ adapter->node);
+
+ /* setup adapter struct */
+ err = e1000_sw_init(adapter);
+ if (err)
+ goto err_sw_init;
+
+ memcpy(&hw->mac.ops, ei->mac_ops, sizeof(hw->mac.ops));
+ memcpy(&hw->nvm.ops, ei->nvm_ops, sizeof(hw->nvm.ops));
+ memcpy(&hw->phy.ops, ei->phy_ops, sizeof(hw->phy.ops));
+
+ err = ei->get_variants(adapter);
+ if (err)
+ goto err_hw_init;
+
+ hw->mac.ops.get_bus_info(&adapter->hw);
+
+ adapter->hw.phy.autoneg_wait_to_complete = 0;
+
+ /* Copper options */
+ if (adapter->hw.phy.media_type == e1000_media_type_copper) {
+ adapter->hw.phy.mdix = AUTO_ALL_MODES;
+ adapter->hw.phy.disable_polarity_correction = 0;
+ adapter->hw.phy.ms_type = e1000_ms_hw_default;
+ }
+
+ if (hw->phy.ops.check_reset_block && hw->phy.ops.check_reset_block(hw))
+ dev_info(pci_dev_to_dev(pdev),
+ "PHY reset is blocked due to SOL/IDER session.\n");
+
+ /* Set initial default active device features */
+ netdev->features = (NETIF_F_SG |
+#if defined(NETIF_F_HW_VLAN_CTAG_TX)
+ NETIF_F_HW_VLAN_CTAG_RX |
+ NETIF_F_HW_VLAN_CTAG_TX |
+#elif defined(NETIF_F_HW_VLAN_TX)
+ NETIF_F_HW_VLAN_RX |
+ NETIF_F_HW_VLAN_TX |
+#endif
+#ifdef NETIF_F_TSO
+ NETIF_F_TSO |
+#ifdef NETIF_F_TSO6
+ NETIF_F_TSO6 |
+#endif
+#endif
+#if defined(NETIF_F_RXHASH)
+ NETIF_F_RXHASH |
+#endif
+#ifdef NETIF_F_RXCSUM
+ NETIF_F_RXCSUM |
+#endif
+ NETIF_F_HW_CSUM);
+
+#if defined(HAVE_NDO_SET_FEATURES) && !defined(HAVE_RHEL6_NET_DEVICE_OPS_EXT)
+ /* Set user-changeable features (subset of all device features) */
+ netdev->hw_features = netdev->features;
+ netdev->hw_features |= NETIF_F_RXFCS;
+#ifdef IFF_SUPP_NOFCS
+ netdev->priv_flags |= IFF_SUPP_NOFCS;
+#endif /* IFF_SUPP_NOFCS */
+ netdev->hw_features |= NETIF_F_RXALL;
+#else /* HAVE_NDO_SET_FEATURES */
+#ifdef NETIF_F_GRO
+ /* only needed for <2.6.39; otherwise set in register_netdevice() */
+ netdev->features |= NETIF_F_GRO;
+#endif
+#endif /* HAVE_NDO_SET_FEATURES */
+
+#if defined(NETIF_F_HW_VLAN_FILTER) || defined(NETIF_F_HW_VLAN_CTAG_FILTER)
+ if (adapter->flags & FLAG_HAS_HW_VLAN_FILTER)
+#ifdef NETIF_F_HW_VLAN_CTAG_FILTER
+ netdev->features |= NETIF_F_HW_VLAN_CTAG_FILTER;
+#else
+ netdev->features |= NETIF_F_HW_VLAN_FILTER;
+#endif
+
+#endif /* NETIF_F_HW_VLAN_FILTER || NETIF_F_HW_VLAN_CTAG_FILTER */
+#ifdef HAVE_NETDEV_VLAN_FEATURES
+ netdev->vlan_features |= (NETIF_F_SG |
+#ifdef NETIF_F_TSO
+ NETIF_F_TSO |
+#endif
+#ifdef NETIF_F_TSO6
+ NETIF_F_TSO6 |
+#endif
+ NETIF_F_HW_CSUM);
+
+#endif /* HAVE_NETDEV_VLAN_FEATURES */
+#ifdef IFF_UNICAST_FLT
+ netdev->priv_flags |= IFF_UNICAST_FLT;
+
+#endif /* IFF_UNICAST_FLT */
+ if (pci_using_dac) {
+ netdev->features |= NETIF_F_HIGHDMA;
+#ifdef HAVE_NETDEV_VLAN_FEATURES
+ netdev->vlan_features |= NETIF_F_HIGHDMA;
+#endif /* HAVE_NETDEV_VLAN_FEATURES */
+ }
+#ifdef HAVE_NETDEVICE_MIN_MAX_MTU
+ /* MTU range: 68 - 9216 */
+#ifdef HAVE_RHEL7_EXTENDED_MIN_MAX_MTU
+ netdev->extended->min_mtu = ETH_MIN_MTU;
+ netdev->extended->max_mtu = adapter->max_hw_frame_size -
+ (VLAN_ETH_HLEN + ETH_FCS_LEN);
+#else
+ netdev->min_mtu = ETH_MIN_MTU;
+ netdev->max_mtu = adapter->max_hw_frame_size -
+ (VLAN_ETH_HLEN + ETH_FCS_LEN);
+#endif /* HAVE_RHEL7_EXTENDED_MIN_MAX_MTU */
+#endif /* HAVE_NETDEVICE_MIN_MAX_MTU */
+
+ if (e1000e_enable_mng_pass_thru(&adapter->hw))
+ adapter->flags |= FLAG_MNG_PT_ENABLED;
+
+ /* before reading the NVM, reset the controller to
+ * put the device in a known good starting state
+ */
+ adapter->hw.mac.ops.reset_hw(&adapter->hw);
+
+ /* systems with ASPM and others may see the checksum fail on the first
+ * attempt. Let's give it a few tries
+ */
+ for (i = 0;; i++) {
+ if (e1000_validate_nvm_checksum(&adapter->hw) >= 0)
+ break;
+ if (i == 2) {
+ dev_err(pci_dev_to_dev(pdev),
+ "The NVM Checksum Is Not Valid\n");
+ err = -EIO;
+ goto err_eeprom;
+ }
+ }
+
+ e1000_eeprom_checks(adapter);
+
+ /* copy the MAC address */
+ if (e1000e_read_mac_addr(&adapter->hw))
+ dev_err(pci_dev_to_dev(pdev),
+ "NVM Read Error while reading MAC address\n");
+
+ memcpy(netdev->dev_addr, adapter->hw.mac.addr, netdev->addr_len);
+#ifdef ETHTOOL_GPERMADDR
+ memcpy(netdev->perm_addr, adapter->hw.mac.addr, netdev->addr_len);
+#endif
+
+ if (!is_valid_ether_addr(netdev->dev_addr)) {
+ dev_err(pci_dev_to_dev(pdev),
+ "Invalid MAC Address: %02x:%02x:%02x:%02x:%02x:%02x\n",
+ netdev->dev_addr[0], netdev->dev_addr[1],
+ netdev->dev_addr[2], netdev->dev_addr[3],
+ netdev->dev_addr[4], netdev->dev_addr[5]);
+ err = -EIO;
+ goto err_eeprom;
+ }
+
+ timer_setup(&adapter->watchdog_timer, e1000_watchdog, 0);
+
+ timer_setup(&adapter->phy_info_timer, e1000_update_phy_info, 0);
+
+ INIT_WORK(&adapter->reset_task, e1000_reset_task);
+ INIT_WORK(&adapter->watchdog_task, e1000_watchdog_task);
+ INIT_WORK(&adapter->downshift_task, e1000e_downshift_workaround);
+ INIT_WORK(&adapter->update_phy_task, e1000e_update_phy_task);
+ INIT_WORK(&adapter->print_hang_task, e1000_print_hw_hang);
+#ifndef HAVE_ETHTOOL_SET_PHYS_ID
+ INIT_WORK(&adapter->led_blink_task, e1000e_led_blink_task);
+#endif
+
+ /* Initialize link parameters. User can change them with ethtool */
+ adapter->hw.mac.autoneg = 1;
+ adapter->fc_autoneg = true;
+ adapter->hw.fc.requested_mode = e1000_fc_default;
+ adapter->hw.fc.current_mode = e1000_fc_default;
+ adapter->hw.phy.autoneg_advertised = 0x2f;
+
+ /* Initial Wake on LAN setting - If APM wake is enabled in
+ * the EEPROM, enable the ACPI Magic Packet filter
+ */
+ if (adapter->flags & FLAG_APME_IN_WUC) {
+ /* APME bit in EEPROM is mapped to WUC.APME */
+ eeprom_data = er32(WUC);
+ eeprom_apme_mask = E1000_WUC_APME;
+ if ((hw->mac.type > e1000_ich10lan) &&
+ (eeprom_data & E1000_WUC_PHY_WAKE))
+ adapter->flags2 |= FLAG2_HAS_PHY_WAKEUP;
+ } else if (adapter->flags & FLAG_APME_IN_CTRL3) {
+ if (adapter->flags & FLAG_APME_CHECK_PORT_B &&
+ (adapter->hw.bus.func == 1))
+ ret_val = e1000_read_nvm(&adapter->hw,
+ NVM_INIT_CONTROL3_PORT_B,
+ 1, &eeprom_data);
+ else
+ ret_val = e1000_read_nvm(&adapter->hw,
+ NVM_INIT_CONTROL3_PORT_A,
+ 1, &eeprom_data);
+ }
+
+ /* fetch WoL from EEPROM */
+ if (ret_val)
+ e_dbg("NVM read error getting WoL initial values: %d\n",
+ ret_val);
+ else if (eeprom_data & eeprom_apme_mask)
+ adapter->eeprom_wol |= E1000_WUFC_MAG;
+
+ /* now that we have the eeprom settings, apply the special cases
+ * where the eeprom may be wrong or the board simply won't support
+ * wake on lan on a particular port
+ */
+ if (!(adapter->flags & FLAG_HAS_WOL))
+ adapter->eeprom_wol = 0;
+
+ /* initialize the wol settings based on the eeprom settings */
+ adapter->wol = adapter->eeprom_wol;
+#ifdef DYNAMIC_LTR_SUPPORT
+
+ /* initialize the DYNAMIC_LTR_SUPPORT variables */
+ adapter->c10_mpc_count = 0;
+ adapter->c10_rx_bytes = 0;
+ /* bottom 5 bits of PBA holds RXA in KBytes */
+ adapter->c10_pba_bytes = er32(PBA) & 0x1F;
+ adapter->c10_pba_bytes <<= 10;
+ if ((hw->adapter->pdev->device == E1000_DEV_ID_PCH_I218_LM3) ||
+ (hw->adapter->pdev->device == E1000_DEV_ID_PCH_I218_V3))
+ adapter->c10_demote_ltr = false;
+ else
+ adapter->c10_demote_ltr = true;
+#endif /* DYNAMIC_LTR_SUPPORT */
+
+ /* make sure adapter isn't asleep if manageability is enabled */
+ if (adapter->wol || (adapter->flags & FLAG_MNG_PT_ENABLED) ||
+ (hw->mac.ops.check_mng_mode(hw)))
+ device_wakeup_enable(pci_dev_to_dev(pdev));
+
+ /* save off EEPROM version number */
+ ret_val = e1000_read_nvm(&adapter->hw, 5, 1, &adapter->eeprom_vers);
+
+ if (ret_val) {
+ e_dbg("NVM read error getting EEPROM version: %d\n", ret_val);
+ adapter->eeprom_vers = 0;
+ }
+
+ /* init PTP hardware clock */
+ e1000e_ptp_init(adapter);
+
+ /* reset the hardware with the new settings */
+ e1000e_reset(adapter);
+
+ /* If the controller has AMT, do not set DRV_LOAD until the interface
+ * is up. For all other cases, let the f/w know that the h/w is now
+ * under the control of the driver.
+ */
+ if (!(adapter->flags & FLAG_HAS_AMT))
+ e1000e_get_hw_control(adapter);
+
+ strlcpy(netdev->name, "eth%d", sizeof(netdev->name));
+ err = register_netdev(netdev);
+ if (err)
+ goto err_register;
+
+ /* carrier off reporting is important to ethtool even BEFORE open */
+ netif_carrier_off(netdev);
+
+ e1000_print_device_info(adapter);
+
+ if (pci_dev_run_wake(pdev))
+ pm_runtime_put_noidle(pci_dev_to_dev(pdev));
+
+ return 0;
+
+err_register:
+ if (!(adapter->flags & FLAG_HAS_AMT))
+ e1000e_release_hw_control(adapter);
+err_eeprom:
+ if (hw->phy.ops.check_reset_block && !hw->phy.ops.check_reset_block(hw))
+ e1000_phy_hw_reset(&adapter->hw);
+err_hw_init:
+ kfree(adapter->tx_ring);
+ kfree(adapter->rx_ring);
+err_sw_init:
+ if ((adapter->hw.flash_address) && (hw->mac.type < e1000_pch_spt))
+ iounmap(adapter->hw.flash_address);
+ e1000e_reset_interrupt_capability(adapter);
+err_flashmap:
+ iounmap(adapter->hw.hw_addr);
+err_ioremap:
+ free_netdev(netdev);
+err_alloc_etherdev:
+ pci_release_selected_regions(pdev,
+ pci_select_bars(pdev, IORESOURCE_MEM));
+err_pci_reg:
+err_dma:
+ pci_disable_device(pdev);
+ return err;
+}
+
+/**
+ * e1000_remove - Device Removal Routine
+ * @pdev: PCI device information struct
+ *
+ * e1000_remove is called by the PCI subsystem to alert the driver
+ * that it should release a PCI device. The could be caused by a
+ * Hot-Plug event, or because the driver is going to be removed from
+ * memory.
+ **/
+#ifdef HAVE_CONFIG_HOTPLUG
+static void __devexit e1000_remove(struct pci_dev *pdev)
+#else
+static void e1000_remove(struct pci_dev *pdev)
+#endif
+{
+ struct net_device *netdev = pci_get_drvdata(pdev);
+ struct e1000_adapter *adapter = netdev_priv(netdev);
+
+ e1000e_ptp_remove(adapter);
+
+ /* The timers may be rescheduled, so explicitly disable them
+ * from being rescheduled.
+ */
+ set_bit(__E1000_DOWN, &adapter->state);
+ del_timer_sync(&adapter->watchdog_timer);
+ del_timer_sync(&adapter->phy_info_timer);
+
+ cancel_work_sync(&adapter->reset_task);
+ cancel_work_sync(&adapter->watchdog_task);
+ cancel_work_sync(&adapter->downshift_task);
+ cancel_work_sync(&adapter->update_phy_task);
+#ifndef HAVE_ETHTOOL_SET_PHYS_ID
+ cancel_work_sync(&adapter->led_blink_task);
+#endif
+ cancel_work_sync(&adapter->print_hang_task);
+
+#ifdef HAVE_HW_TIME_STAMP
+ if (adapter->flags & FLAG_HAS_HW_TIMESTAMP) {
+ cancel_work_sync(&adapter->tx_hwtstamp_work);
+ if (adapter->tx_hwtstamp_skb) {
+ dev_kfree_skb_any(adapter->tx_hwtstamp_skb);
+ adapter->tx_hwtstamp_skb = NULL;
+ }
+ }
+#endif
+
+ unregister_netdev(netdev);
+
+ if (pci_dev_run_wake(pdev))
+ pm_runtime_get_noresume(pci_dev_to_dev(pdev));
+
+ /* Release control of h/w to f/w. If f/w is AMT enabled, this
+ * would have already happened in close and is redundant.
+ */
+ e1000e_release_hw_control(adapter);
+
+ e1000e_reset_interrupt_capability(adapter);
+ kfree(adapter->tx_ring);
+ kfree(adapter->rx_ring);
+
+ iounmap(adapter->hw.hw_addr);
+ if ((adapter->hw.flash_address) &&
+ (adapter->hw.mac.type < e1000_pch_spt))
+ iounmap(adapter->hw.flash_address);
+ pci_release_selected_regions(pdev,
+ pci_select_bars(pdev, IORESOURCE_MEM));
+
+ free_netdev(netdev);
+
+ /* AER disable */
+ pci_disable_pcie_error_reporting(pdev);
+
+ pci_disable_device(pdev);
+}
+
+#ifdef HAVE_PCI_ERS
+/* PCI Error Recovery (ERS) */
+#ifdef HAVE_CONST_STRUCT_PCI_ERROR_HANDLERS
+static const struct pci_error_handlers e1000_err_handler = {
+#else
+static struct pci_error_handlers e1000_err_handler = {
+#endif
+ .error_detected = e1000_io_error_detected,
+ .slot_reset = e1000_io_slot_reset,
+ .resume = e1000_io_resume,
+};
+#endif
+
+static const struct pci_device_id e1000_pci_tbl[] = {
+ { PCI_VDEVICE(INTEL, E1000_DEV_ID_82571EB_COPPER), board_82571 },
+ { PCI_VDEVICE(INTEL, E1000_DEV_ID_82571EB_FIBER), board_82571 },
+ { PCI_VDEVICE(INTEL, E1000_DEV_ID_82571EB_QUAD_COPPER), board_82571 },
+ { PCI_VDEVICE(INTEL, E1000_DEV_ID_82571EB_QUAD_COPPER_LP),
+ board_82571 },
+ { PCI_VDEVICE(INTEL, E1000_DEV_ID_82571EB_QUAD_FIBER), board_82571 },
+ { PCI_VDEVICE(INTEL, E1000_DEV_ID_82571EB_SERDES), board_82571 },
+ { PCI_VDEVICE(INTEL, E1000_DEV_ID_82571EB_SERDES_DUAL), board_82571 },
+ { PCI_VDEVICE(INTEL, E1000_DEV_ID_82571EB_SERDES_QUAD), board_82571 },
+ { PCI_VDEVICE(INTEL, E1000_DEV_ID_82571PT_QUAD_COPPER), board_82571 },
+
+ { PCI_VDEVICE(INTEL, E1000_DEV_ID_82572EI), board_82572 },
+ { PCI_VDEVICE(INTEL, E1000_DEV_ID_82572EI_COPPER), board_82572 },
+ { PCI_VDEVICE(INTEL, E1000_DEV_ID_82572EI_FIBER), board_82572 },
+ { PCI_VDEVICE(INTEL, E1000_DEV_ID_82572EI_SERDES), board_82572 },
+
+ { PCI_VDEVICE(INTEL, E1000_DEV_ID_82573E), board_82573 },
+ { PCI_VDEVICE(INTEL, E1000_DEV_ID_82573E_IAMT), board_82573 },
+ { PCI_VDEVICE(INTEL, E1000_DEV_ID_82573L), board_82573 },
+
+ { PCI_VDEVICE(INTEL, E1000_DEV_ID_82574L), board_82574 },
+ { PCI_VDEVICE(INTEL, E1000_DEV_ID_82574LA), board_82574 },
+ { PCI_VDEVICE(INTEL, E1000_DEV_ID_82583V), board_82583 },
+
+ { PCI_VDEVICE(INTEL, E1000_DEV_ID_80003ES2LAN_COPPER_DPT),
+ board_80003es2lan },
+ { PCI_VDEVICE(INTEL, E1000_DEV_ID_80003ES2LAN_COPPER_SPT),
+ board_80003es2lan },
+ { PCI_VDEVICE(INTEL, E1000_DEV_ID_80003ES2LAN_SERDES_DPT),
+ board_80003es2lan },
+ { PCI_VDEVICE(INTEL, E1000_DEV_ID_80003ES2LAN_SERDES_SPT),
+ board_80003es2lan },
+
+ { PCI_VDEVICE(INTEL, E1000_DEV_ID_ICH8_IFE), board_ich8lan },
+ { PCI_VDEVICE(INTEL, E1000_DEV_ID_ICH8_IFE_G), board_ich8lan },
+ { PCI_VDEVICE(INTEL, E1000_DEV_ID_ICH8_IFE_GT), board_ich8lan },
+ { PCI_VDEVICE(INTEL, E1000_DEV_ID_ICH8_IGP_AMT), board_ich8lan },
+ { PCI_VDEVICE(INTEL, E1000_DEV_ID_ICH8_IGP_C), board_ich8lan },
+ { PCI_VDEVICE(INTEL, E1000_DEV_ID_ICH8_IGP_M), board_ich8lan },
+ { PCI_VDEVICE(INTEL, E1000_DEV_ID_ICH8_IGP_M_AMT), board_ich8lan },
+ { PCI_VDEVICE(INTEL, E1000_DEV_ID_ICH8_82567V_3), board_ich8lan },
+
+ { PCI_VDEVICE(INTEL, E1000_DEV_ID_ICH9_IFE), board_ich9lan },
+ { PCI_VDEVICE(INTEL, E1000_DEV_ID_ICH9_IFE_G), board_ich9lan },
+ { PCI_VDEVICE(INTEL, E1000_DEV_ID_ICH9_IFE_GT), board_ich9lan },
+ { PCI_VDEVICE(INTEL, E1000_DEV_ID_ICH9_IGP_AMT), board_ich9lan },
+ { PCI_VDEVICE(INTEL, E1000_DEV_ID_ICH9_IGP_C), board_ich9lan },
+ { PCI_VDEVICE(INTEL, E1000_DEV_ID_ICH9_BM), board_ich9lan },
+ { PCI_VDEVICE(INTEL, E1000_DEV_ID_ICH9_IGP_M), board_ich9lan },
+ { PCI_VDEVICE(INTEL, E1000_DEV_ID_ICH9_IGP_M_AMT), board_ich9lan },
+ { PCI_VDEVICE(INTEL, E1000_DEV_ID_ICH9_IGP_M_V), board_ich9lan },
+
+ { PCI_VDEVICE(INTEL, E1000_DEV_ID_ICH10_R_BM_LM), board_ich9lan },
+ { PCI_VDEVICE(INTEL, E1000_DEV_ID_ICH10_R_BM_LF), board_ich9lan },
+ { PCI_VDEVICE(INTEL, E1000_DEV_ID_ICH10_R_BM_V), board_ich9lan },
+
+ { PCI_VDEVICE(INTEL, E1000_DEV_ID_ICH10_D_BM_LM), board_ich10lan },
+ { PCI_VDEVICE(INTEL, E1000_DEV_ID_ICH10_D_BM_LF), board_ich10lan },
+ { PCI_VDEVICE(INTEL, E1000_DEV_ID_ICH10_D_BM_V), board_ich10lan },
+
+ { PCI_VDEVICE(INTEL, E1000_DEV_ID_PCH_M_HV_LM), board_pchlan },
+ { PCI_VDEVICE(INTEL, E1000_DEV_ID_PCH_M_HV_LC), board_pchlan },
+ { PCI_VDEVICE(INTEL, E1000_DEV_ID_PCH_D_HV_DM), board_pchlan },
+ { PCI_VDEVICE(INTEL, E1000_DEV_ID_PCH_D_HV_DC), board_pchlan },
+
+ { PCI_VDEVICE(INTEL, E1000_DEV_ID_PCH2_LV_LM), board_pch2lan },
+ { PCI_VDEVICE(INTEL, E1000_DEV_ID_PCH2_LV_V), board_pch2lan },
+
+ { PCI_VDEVICE(INTEL, E1000_DEV_ID_PCH_LPT_I217_LM), board_pch_lpt },
+ { PCI_VDEVICE(INTEL, E1000_DEV_ID_PCH_LPT_I217_V), board_pch_lpt },
+ { PCI_VDEVICE(INTEL, E1000_DEV_ID_PCH_LPTLP_I218_LM), board_pch_lpt },
+ { PCI_VDEVICE(INTEL, E1000_DEV_ID_PCH_LPTLP_I218_V), board_pch_lpt },
+ { PCI_VDEVICE(INTEL, E1000_DEV_ID_PCH_I218_LM2), board_pch_lpt },
+ { PCI_VDEVICE(INTEL, E1000_DEV_ID_PCH_I218_V2), board_pch_lpt },
+ { PCI_VDEVICE(INTEL, E1000_DEV_ID_PCH_I218_LM3), board_pch_lpt },
+ { PCI_VDEVICE(INTEL, E1000_DEV_ID_PCH_I218_V3), board_pch_lpt },
+ { PCI_VDEVICE(INTEL, E1000_DEV_ID_PCH_SPT_I219_LM), board_pch_spt },
+ { PCI_VDEVICE(INTEL, E1000_DEV_ID_PCH_SPT_I219_V), board_pch_spt },
+ { PCI_VDEVICE(INTEL, E1000_DEV_ID_PCH_SPT_I219_LM2), board_pch_spt },
+ { PCI_VDEVICE(INTEL, E1000_DEV_ID_PCH_SPT_I219_V2), board_pch_spt },
+ { PCI_VDEVICE(INTEL, E1000_DEV_ID_PCH_LBG_I219_LM3), board_pch_spt },
+ { PCI_VDEVICE(INTEL, E1000_DEV_ID_PCH_SPT_I219_LM4), board_pch_spt },
+ { PCI_VDEVICE(INTEL, E1000_DEV_ID_PCH_SPT_I219_V4), board_pch_spt },
+ { PCI_VDEVICE(INTEL, E1000_DEV_ID_PCH_SPT_I219_LM5), board_pch_spt },
+ { PCI_VDEVICE(INTEL, E1000_DEV_ID_PCH_SPT_I219_V5), board_pch_spt },
+ { PCI_VDEVICE(INTEL, E1000_DEV_ID_PCH_CMP_I219_LM12), board_pch_spt },
+ { PCI_VDEVICE(INTEL, E1000_DEV_ID_PCH_CMP_I219_V12), board_pch_spt },
+ { PCI_VDEVICE(INTEL, E1000_DEV_ID_PCH_CNP_I219_LM6), board_pch_cnp },
+ { PCI_VDEVICE(INTEL, E1000_DEV_ID_PCH_CNP_I219_V6), board_pch_cnp },
+ { PCI_VDEVICE(INTEL, E1000_DEV_ID_PCH_CNP_I219_LM7), board_pch_cnp },
+ { PCI_VDEVICE(INTEL, E1000_DEV_ID_PCH_CNP_I219_V7), board_pch_cnp },
+ { PCI_VDEVICE(INTEL, E1000_DEV_ID_PCH_ICP_I219_LM8), board_pch_cnp },
+ { PCI_VDEVICE(INTEL, E1000_DEV_ID_PCH_ICP_I219_V8), board_pch_cnp },
+ { PCI_VDEVICE(INTEL, E1000_DEV_ID_PCH_ICP_I219_LM9), board_pch_cnp },
+ { PCI_VDEVICE(INTEL, E1000_DEV_ID_PCH_ICP_I219_V9), board_pch_cnp },
+ { PCI_VDEVICE(INTEL, E1000_DEV_ID_PCH_CMP_I219_LM10), board_pch_cnp },
+ { PCI_VDEVICE(INTEL, E1000_DEV_ID_PCH_CMP_I219_V10), board_pch_cnp },
+ { PCI_VDEVICE(INTEL, E1000_DEV_ID_PCH_CMP_I219_LM11), board_pch_cnp },
+ { PCI_VDEVICE(INTEL, E1000_DEV_ID_PCH_CMP_I219_V11), board_pch_cnp },
+ { PCI_VDEVICE(INTEL, E1000_DEV_ID_PCH_TGP_I219_LM13), board_pch_cnp },
+ { PCI_VDEVICE(INTEL, E1000_DEV_ID_PCH_TGP_I219_V13), board_pch_cnp },
+ { PCI_VDEVICE(INTEL, E1000_DEV_ID_PCH_TGP_I219_LM14), board_pch_cnp },
+ { PCI_VDEVICE(INTEL, E1000_DEV_ID_PCH_TGP_I219_V14), board_pch_cnp },
+ { PCI_VDEVICE(INTEL, E1000_DEV_ID_PCH_TGP_I219_LM15), board_pch_cnp },
+ { PCI_VDEVICE(INTEL, E1000_DEV_ID_PCH_TGP_I219_V15), board_pch_cnp },
+ { PCI_VDEVICE(INTEL, E1000_DEV_ID_PCH_ADL_I219_LM16), board_pch_cnp },
+ { PCI_VDEVICE(INTEL, E1000_DEV_ID_PCH_ADL_I219_V16), board_pch_cnp },
+ { PCI_VDEVICE(INTEL, E1000_DEV_ID_PCH_ADL_I219_LM17), board_pch_cnp },
+ { PCI_VDEVICE(INTEL, E1000_DEV_ID_PCH_ADL_I219_V17), board_pch_cnp },
+
+ { 0, 0, 0, 0, 0, 0, 0 } /* terminate list */
+};
+MODULE_DEVICE_TABLE(pci, e1000_pci_tbl);
+
+#ifdef CONFIG_PM
+#ifndef USE_LEGACY_PM_SUPPORT
+static const struct dev_pm_ops e1000_pm_ops = {
+ .suspend = e1000e_pm_suspend,
+ .resume = e1000e_pm_resume,
+ .freeze = e1000e_pm_freeze,
+ .thaw = e1000e_pm_thaw,
+ .poweroff = e1000e_pm_suspend,
+ .restore = e1000e_pm_resume,
+ SET_RUNTIME_PM_OPS(e1000e_pm_runtime_suspend, e1000e_pm_runtime_resume,
+ e1000e_pm_runtime_idle)
+};
+#endif /* USE_LEGACY_PM_SUPPORT */
+#endif
+
+/* PCI Device API Driver */
+static struct pci_driver e1000_driver = {
+ .name = e1000e_driver_name,
+ .id_table = e1000_pci_tbl,
+ .probe = e1000_probe,
+#ifdef HAVE_CONFIG_HOTPLUG
+ .remove = __devexit_p(e1000_remove),
+#else
+ .remove = e1000_remove,
+#endif
+#ifdef CONFIG_PM
+#ifndef USE_LEGACY_PM_SUPPORT
+ .driver = {
+ .pm = &e1000_pm_ops,
+ },
+#elif defined(CONFIG_PM_SLEEP)
+ .suspend = e1000e_pm_suspend,
+ .resume = e1000e_pm_resume,
+#endif /* USE_LEGACY_PM_SUPPORT */
+#endif
+#ifndef USE_REBOOT_NOTIFIER
+ .shutdown = e1000_shutdown,
+#endif
+#ifdef HAVE_PCI_ERS
+ .err_handler = &e1000_err_handler
+#endif
+};
+
+/**
+ * e1000_init_module - Driver Registration Routine
+ *
+ * e1000_init_module is the first routine called when the driver is
+ * loaded. All it does is register with the PCI subsystem.
+ **/
+static int __init e1000_init_module(void)
+{
+ pr_info("Intel(R) PRO/1000 Network Driver - %s\n",
+ e1000e_driver_version);
+ pr_info("Copyright(c) 1999 - 2020 Intel Corporation.\n");
+
+#ifndef USE_REBOOT_NOTIFIER
+ return pci_register_driver(&e1000_driver);
+#else
+ int ret = pci_register_driver(&e1000_driver);
+ if (ret >= 0)
+ register_reboot_notifier(&e1000_notifier_reboot);
+ return ret;
+#endif
+}
+module_init(e1000_init_module);
+
+/**
+ * e1000_exit_module - Driver Exit Cleanup Routine
+ *
+ * e1000_exit_module is called just before the driver is removed
+ * from memory.
+ **/
+static void __exit e1000_exit_module(void)
+{
+#ifdef USE_REBOOT_NOTIFIER
+ unregister_reboot_notifier(&e1000_notifier_reboot);
+#endif
+ pci_unregister_driver(&e1000_driver);
+}
+module_exit(e1000_exit_module);
+
+MODULE_AUTHOR("Intel Corporation, <linux.nics@intel.com>");
+MODULE_DESCRIPTION("Intel(R) PRO/1000 Network Driver");
+MODULE_LICENSE("GPL");
+MODULE_VERSION(DRV_VERSION);
+
+/* netdev.c */
diff --git a/src/nvm.c b/src/nvm.c
new file mode 100644
index 0000000..df8caf6
--- /dev/null
+++ b/src/nvm.c
@@ -0,0 +1,616 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright(c) 1999 - 2020 Intel Corporation. */
+
+#include "e1000.h"
+
+/**
+ * e1000_raise_eec_clk - Raise EEPROM clock
+ * @hw: pointer to the HW structure
+ * @eecd: pointer to the EEPROM
+ *
+ * Enable/Raise the EEPROM clock bit.
+ **/
+static void e1000_raise_eec_clk(struct e1000_hw *hw, u32 *eecd)
+{
+ *eecd = *eecd | E1000_EECD_SK;
+ ew32(EECD, *eecd);
+ e1e_flush();
+ udelay(hw->nvm.delay_usec);
+}
+
+/**
+ * e1000_lower_eec_clk - Lower EEPROM clock
+ * @hw: pointer to the HW structure
+ * @eecd: pointer to the EEPROM
+ *
+ * Clear/Lower the EEPROM clock bit.
+ **/
+static void e1000_lower_eec_clk(struct e1000_hw *hw, u32 *eecd)
+{
+ *eecd = *eecd & ~E1000_EECD_SK;
+ ew32(EECD, *eecd);
+ e1e_flush();
+ udelay(hw->nvm.delay_usec);
+}
+
+/**
+ * e1000_shift_out_eec_bits - Shift data bits our to the EEPROM
+ * @hw: pointer to the HW structure
+ * @data: data to send to the EEPROM
+ * @count: number of bits to shift out
+ *
+ * We need to shift 'count' bits out to the EEPROM. So, the value in the
+ * "data" parameter will be shifted out to the EEPROM one bit at a time.
+ * In order to do this, "data" must be broken down into bits.
+ **/
+static void e1000_shift_out_eec_bits(struct e1000_hw *hw, u16 data, u16 count)
+{
+ struct e1000_nvm_info *nvm = &hw->nvm;
+ u32 eecd = er32(EECD);
+ u32 mask;
+
+ mask = 0x01 << (count - 1);
+ if (nvm->type == e1000_nvm_eeprom_spi)
+ eecd |= E1000_EECD_DO;
+
+ do {
+ eecd &= ~E1000_EECD_DI;
+
+ if (data & mask)
+ eecd |= E1000_EECD_DI;
+
+ ew32(EECD, eecd);
+ e1e_flush();
+
+ udelay(nvm->delay_usec);
+
+ e1000_raise_eec_clk(hw, &eecd);
+ e1000_lower_eec_clk(hw, &eecd);
+
+ mask >>= 1;
+ } while (mask);
+
+ eecd &= ~E1000_EECD_DI;
+ ew32(EECD, eecd);
+}
+
+/**
+ * e1000_shift_in_eec_bits - Shift data bits in from the EEPROM
+ * @hw: pointer to the HW structure
+ * @count: number of bits to shift in
+ *
+ * In order to read a register from the EEPROM, we need to shift 'count' bits
+ * in from the EEPROM. Bits are "shifted in" by raising the clock input to
+ * the EEPROM (setting the SK bit), and then reading the value of the data out
+ * "DO" bit. During this "shifting in" process the data in "DI" bit should
+ * always be clear.
+ **/
+static u16 e1000_shift_in_eec_bits(struct e1000_hw *hw, u16 count)
+{
+ u32 eecd;
+ u32 i;
+ u16 data;
+
+ eecd = er32(EECD);
+
+ eecd &= ~(E1000_EECD_DO | E1000_EECD_DI);
+ data = 0;
+
+ for (i = 0; i < count; i++) {
+ data <<= 1;
+ e1000_raise_eec_clk(hw, &eecd);
+
+ eecd = er32(EECD);
+
+ eecd &= ~E1000_EECD_DI;
+ if (eecd & E1000_EECD_DO)
+ data |= 1;
+
+ e1000_lower_eec_clk(hw, &eecd);
+ }
+
+ return data;
+}
+
+/**
+ * e1000e_poll_eerd_eewr_done - Poll for EEPROM read/write completion
+ * @hw: pointer to the HW structure
+ * @ee_reg: EEPROM flag for polling
+ *
+ * Polls the EEPROM status bit for either read or write completion based
+ * upon the value of 'ee_reg'.
+ **/
+s32 e1000e_poll_eerd_eewr_done(struct e1000_hw *hw, int ee_reg)
+{
+ u32 attempts = 100000;
+ u32 i, reg = 0;
+
+ for (i = 0; i < attempts; i++) {
+ if (ee_reg == E1000_NVM_POLL_READ)
+ reg = er32(EERD);
+ else
+ reg = er32(EEWR);
+
+ if (reg & E1000_NVM_RW_REG_DONE)
+ return 0;
+
+ udelay(5);
+ }
+
+ return -E1000_ERR_NVM;
+}
+
+/**
+ * e1000e_acquire_nvm - Generic request for access to EEPROM
+ * @hw: pointer to the HW structure
+ *
+ * Set the EEPROM access request bit and wait for EEPROM access grant bit.
+ * Return successful if access grant bit set, else clear the request for
+ * EEPROM access and return -E1000_ERR_NVM (-1).
+ **/
+s32 e1000e_acquire_nvm(struct e1000_hw *hw)
+{
+ u32 eecd = er32(EECD);
+ s32 timeout = E1000_NVM_GRANT_ATTEMPTS;
+
+ ew32(EECD, eecd | E1000_EECD_REQ);
+ eecd = er32(EECD);
+
+ while (timeout) {
+ if (eecd & E1000_EECD_GNT)
+ break;
+ udelay(5);
+ eecd = er32(EECD);
+ timeout--;
+ }
+
+ if (!timeout) {
+ eecd &= ~E1000_EECD_REQ;
+ ew32(EECD, eecd);
+ e_dbg("Could not acquire NVM grant\n");
+ return -E1000_ERR_NVM;
+ }
+
+ return 0;
+}
+
+/**
+ * e1000_standby_nvm - Return EEPROM to standby state
+ * @hw: pointer to the HW structure
+ *
+ * Return the EEPROM to a standby state.
+ **/
+static void e1000_standby_nvm(struct e1000_hw *hw)
+{
+ struct e1000_nvm_info *nvm = &hw->nvm;
+ u32 eecd = er32(EECD);
+
+ if (nvm->type == e1000_nvm_eeprom_spi) {
+ /* Toggle CS to flush commands */
+ eecd |= E1000_EECD_CS;
+ ew32(EECD, eecd);
+ e1e_flush();
+ udelay(nvm->delay_usec);
+ eecd &= ~E1000_EECD_CS;
+ ew32(EECD, eecd);
+ e1e_flush();
+ udelay(nvm->delay_usec);
+ }
+}
+
+/**
+ * e1000_stop_nvm - Terminate EEPROM command
+ * @hw: pointer to the HW structure
+ *
+ * Terminates the current command by inverting the EEPROM's chip select pin.
+ **/
+static void e1000_stop_nvm(struct e1000_hw *hw)
+{
+ u32 eecd;
+
+ eecd = er32(EECD);
+ if (hw->nvm.type == e1000_nvm_eeprom_spi) {
+ /* Pull CS high */
+ eecd |= E1000_EECD_CS;
+ e1000_lower_eec_clk(hw, &eecd);
+ }
+}
+
+/**
+ * e1000e_release_nvm - Release exclusive access to EEPROM
+ * @hw: pointer to the HW structure
+ *
+ * Stop any current commands to the EEPROM and clear the EEPROM request bit.
+ **/
+void e1000e_release_nvm(struct e1000_hw *hw)
+{
+ u32 eecd;
+
+ e1000_stop_nvm(hw);
+
+ eecd = er32(EECD);
+ eecd &= ~E1000_EECD_REQ;
+ ew32(EECD, eecd);
+}
+
+/**
+ * e1000_ready_nvm_eeprom - Prepares EEPROM for read/write
+ * @hw: pointer to the HW structure
+ *
+ * Setups the EEPROM for reading and writing.
+ **/
+static s32 e1000_ready_nvm_eeprom(struct e1000_hw *hw)
+{
+ struct e1000_nvm_info *nvm = &hw->nvm;
+ u32 eecd = er32(EECD);
+ u8 spi_stat_reg;
+
+ if (nvm->type == e1000_nvm_eeprom_spi) {
+ u16 timeout = NVM_MAX_RETRY_SPI;
+
+ /* Clear SK and CS */
+ eecd &= ~(E1000_EECD_CS | E1000_EECD_SK);
+ ew32(EECD, eecd);
+ e1e_flush();
+ udelay(1);
+
+ /* Read "Status Register" repeatedly until the LSB is cleared.
+ * The EEPROM will signal that the command has been completed
+ * by clearing bit 0 of the internal status register. If it's
+ * not cleared within 'timeout', then error out.
+ */
+ while (timeout) {
+ e1000_shift_out_eec_bits(hw, NVM_RDSR_OPCODE_SPI,
+ hw->nvm.opcode_bits);
+ spi_stat_reg = (u8)e1000_shift_in_eec_bits(hw, 8);
+ if (!(spi_stat_reg & NVM_STATUS_RDY_SPI))
+ break;
+
+ udelay(5);
+ e1000_standby_nvm(hw);
+ timeout--;
+ }
+
+ if (!timeout) {
+ e_dbg("SPI NVM Status error\n");
+ return -E1000_ERR_NVM;
+ }
+ }
+
+ return 0;
+}
+
+/**
+ * e1000e_read_nvm_eerd - Reads EEPROM using EERD register
+ * @hw: pointer to the HW structure
+ * @offset: offset of word in the EEPROM to read
+ * @words: number of words to read
+ * @data: word read from the EEPROM
+ *
+ * Reads a 16 bit word from the EEPROM using the EERD register.
+ **/
+s32 e1000e_read_nvm_eerd(struct e1000_hw *hw, u16 offset, u16 words, u16 *data)
+{
+ struct e1000_nvm_info *nvm = &hw->nvm;
+ u32 i, eerd = 0;
+ s32 ret_val = 0;
+
+ /* A check for invalid values: offset too large, too many words,
+ * too many words for the offset, and not enough words.
+ */
+ if ((offset >= nvm->word_size) || (words > (nvm->word_size - offset)) ||
+ (words == 0)) {
+ e_dbg("nvm parameter(s) out of bounds\n");
+ return -E1000_ERR_NVM;
+ }
+
+ for (i = 0; i < words; i++) {
+ eerd = ((offset + i) << E1000_NVM_RW_ADDR_SHIFT) +
+ E1000_NVM_RW_REG_START;
+
+ ew32(EERD, eerd);
+ ret_val = e1000e_poll_eerd_eewr_done(hw, E1000_NVM_POLL_READ);
+ if (ret_val)
+ break;
+
+ data[i] = (er32(EERD) >> E1000_NVM_RW_REG_DATA);
+ }
+
+ if (ret_val)
+ e_dbg("NVM read error: %d\n", ret_val);
+
+ return ret_val;
+}
+
+/**
+ * e1000e_write_nvm_spi - Write to EEPROM using SPI
+ * @hw: pointer to the HW structure
+ * @offset: offset within the EEPROM to be written to
+ * @words: number of words to write
+ * @data: 16 bit word(s) to be written to the EEPROM
+ *
+ * Writes data to EEPROM at offset using SPI interface.
+ *
+ * If e1000e_update_nvm_checksum is not called after this function , the
+ * EEPROM will most likely contain an invalid checksum.
+ **/
+s32 e1000e_write_nvm_spi(struct e1000_hw *hw, u16 offset, u16 words, u16 *data)
+{
+ struct e1000_nvm_info *nvm = &hw->nvm;
+ s32 ret_val = -E1000_ERR_NVM;
+ u16 widx = 0;
+
+ /* A check for invalid values: offset too large, too many words,
+ * and not enough words.
+ */
+ if ((offset >= nvm->word_size) || (words > (nvm->word_size - offset)) ||
+ (words == 0)) {
+ e_dbg("nvm parameter(s) out of bounds\n");
+ return -E1000_ERR_NVM;
+ }
+
+ while (widx < words) {
+ u8 write_opcode = NVM_WRITE_OPCODE_SPI;
+
+ ret_val = nvm->ops.acquire(hw);
+ if (ret_val)
+ return ret_val;
+
+ ret_val = e1000_ready_nvm_eeprom(hw);
+ if (ret_val) {
+ nvm->ops.release(hw);
+ return ret_val;
+ }
+
+ e1000_standby_nvm(hw);
+
+ /* Send the WRITE ENABLE command (8 bit opcode) */
+ e1000_shift_out_eec_bits(hw, NVM_WREN_OPCODE_SPI,
+ nvm->opcode_bits);
+
+ e1000_standby_nvm(hw);
+
+ /* Some SPI eeproms use the 8th address bit embedded in the
+ * opcode
+ */
+ if ((nvm->address_bits == 8) && (offset >= 128))
+ write_opcode |= NVM_A8_OPCODE_SPI;
+
+ /* Send the Write command (8-bit opcode + addr) */
+ e1000_shift_out_eec_bits(hw, write_opcode, nvm->opcode_bits);
+ e1000_shift_out_eec_bits(hw, (u16)((offset + widx) * 2),
+ nvm->address_bits);
+
+ /* Loop to allow for up to whole page write of eeprom */
+ while (widx < words) {
+ u16 word_out = data[widx];
+ word_out = (word_out >> 8) | (word_out << 8);
+ e1000_shift_out_eec_bits(hw, word_out, 16);
+ widx++;
+
+ if ((((offset + widx) * 2) % nvm->page_size) == 0) {
+ e1000_standby_nvm(hw);
+ break;
+ }
+ }
+ usleep_range(10000, 20000);
+ nvm->ops.release(hw);
+ }
+
+ return ret_val;
+}
+
+/**
+ * e1000_read_pba_string_generic - Read device part number
+ * @hw: pointer to the HW structure
+ * @pba_num: pointer to device part number
+ * @pba_num_size: size of part number buffer
+ *
+ * Reads the product board assembly (PBA) number from the EEPROM and stores
+ * the value in pba_num.
+ **/
+s32 e1000_read_pba_string_generic(struct e1000_hw *hw, u8 *pba_num,
+ u32 pba_num_size)
+{
+ s32 ret_val;
+ u16 nvm_data;
+ u16 pba_ptr;
+ u16 offset;
+ u16 length;
+
+ if (pba_num == NULL) {
+ e_dbg("PBA string buffer was null\n");
+ return -E1000_ERR_INVALID_ARGUMENT;
+ }
+
+ ret_val = e1000_read_nvm(hw, NVM_PBA_OFFSET_0, 1, &nvm_data);
+ if (ret_val) {
+ e_dbg("NVM Read Error\n");
+ return ret_val;
+ }
+
+ ret_val = e1000_read_nvm(hw, NVM_PBA_OFFSET_1, 1, &pba_ptr);
+ if (ret_val) {
+ e_dbg("NVM Read Error\n");
+ return ret_val;
+ }
+
+ /* if nvm_data is not ptr guard the PBA must be in legacy format which
+ * means pba_ptr is actually our second data word for the PBA number
+ * and we can decode it into an ascii string
+ */
+ if (nvm_data != NVM_PBA_PTR_GUARD) {
+ e_dbg("NVM PBA number is not stored as string\n");
+
+ /* make sure callers buffer is big enough to store the PBA */
+ if (pba_num_size < E1000_PBANUM_LENGTH) {
+ e_dbg("PBA string buffer too small\n");
+ return E1000_ERR_NO_SPACE;
+ }
+
+ /* extract hex string from data and pba_ptr */
+ pba_num[0] = (nvm_data >> 12) & 0xF;
+ pba_num[1] = (nvm_data >> 8) & 0xF;
+ pba_num[2] = (nvm_data >> 4) & 0xF;
+ pba_num[3] = nvm_data & 0xF;
+ pba_num[4] = (pba_ptr >> 12) & 0xF;
+ pba_num[5] = (pba_ptr >> 8) & 0xF;
+ pba_num[6] = '-';
+ pba_num[7] = 0;
+ pba_num[8] = (pba_ptr >> 4) & 0xF;
+ pba_num[9] = pba_ptr & 0xF;
+
+ /* put a null character on the end of our string */
+ pba_num[10] = '\0';
+
+ /* switch all the data but the '-' to hex char */
+ for (offset = 0; offset < 10; offset++) {
+ if (pba_num[offset] < 0xA)
+ pba_num[offset] += '0';
+ else if (pba_num[offset] < 0x10)
+ pba_num[offset] += 'A' - 0xA;
+ }
+
+ return 0;
+ }
+
+ ret_val = e1000_read_nvm(hw, pba_ptr, 1, &length);
+ if (ret_val) {
+ e_dbg("NVM Read Error\n");
+ return ret_val;
+ }
+
+ if (length == 0xFFFF || length == 0) {
+ e_dbg("NVM PBA number section invalid length\n");
+ return -E1000_ERR_NVM_PBA_SECTION;
+ }
+ /* check if pba_num buffer is big enough */
+ if (pba_num_size < (((u32)length * 2) - 1)) {
+ e_dbg("PBA string buffer too small\n");
+ return -E1000_ERR_NO_SPACE;
+ }
+
+ /* trim pba length from start of string */
+ pba_ptr++;
+ length--;
+
+ for (offset = 0; offset < length; offset++) {
+ ret_val = e1000_read_nvm(hw, pba_ptr + offset, 1, &nvm_data);
+ if (ret_val) {
+ e_dbg("NVM Read Error\n");
+ return ret_val;
+ }
+ pba_num[offset * 2] = (u8)(nvm_data >> 8);
+ pba_num[(offset * 2) + 1] = (u8)(nvm_data & 0xFF);
+ }
+ pba_num[offset * 2] = '\0';
+
+ return 0;
+}
+
+/**
+ * e1000_read_mac_addr_generic - Read device MAC address
+ * @hw: pointer to the HW structure
+ *
+ * Reads the device MAC address from the EEPROM and stores the value.
+ * Since devices with two ports use the same EEPROM, we increment the
+ * last bit in the MAC address for the second port.
+ **/
+s32 e1000_read_mac_addr_generic(struct e1000_hw *hw)
+{
+ u32 rar_high;
+ u32 rar_low;
+ u16 i;
+
+ rar_high = er32(RAH(0));
+ rar_low = er32(RAL(0));
+
+ for (i = 0; i < E1000_RAL_MAC_ADDR_LEN; i++)
+ hw->mac.perm_addr[i] = (u8)(rar_low >> (i * 8));
+
+ for (i = 0; i < E1000_RAH_MAC_ADDR_LEN; i++)
+ hw->mac.perm_addr[i + 4] = (u8)(rar_high >> (i * 8));
+
+ for (i = 0; i < ETH_ALEN; i++)
+ hw->mac.addr[i] = hw->mac.perm_addr[i];
+
+ return 0;
+}
+
+/**
+ * e1000e_validate_nvm_checksum_generic - Validate EEPROM checksum
+ * @hw: pointer to the HW structure
+ *
+ * Calculates the EEPROM checksum by reading/adding each word of the EEPROM
+ * and then verifies that the sum of the EEPROM is equal to 0xBABA.
+ **/
+s32 e1000e_validate_nvm_checksum_generic(struct e1000_hw *hw)
+{
+ s32 ret_val;
+ u16 checksum = 0;
+ u16 i, nvm_data;
+
+ for (i = 0; i < (NVM_CHECKSUM_REG + 1); i++) {
+ ret_val = e1000_read_nvm(hw, i, 1, &nvm_data);
+ if (ret_val) {
+ e_dbg("NVM Read Error\n");
+ return ret_val;
+ }
+ checksum += nvm_data;
+ }
+
+ if (checksum != (u16)NVM_SUM) {
+ e_dbg("NVM Checksum Invalid\n");
+ return -E1000_ERR_NVM;
+ }
+
+ return 0;
+}
+
+/**
+ * e1000e_update_nvm_checksum_generic - Update EEPROM checksum
+ * @hw: pointer to the HW structure
+ *
+ * Updates the EEPROM checksum by reading/adding each word of the EEPROM
+ * up to the checksum. Then calculates the EEPROM checksum and writes the
+ * value to the EEPROM.
+ **/
+s32 e1000e_update_nvm_checksum_generic(struct e1000_hw *hw)
+{
+ s32 ret_val;
+ u16 checksum = 0;
+ u16 i, nvm_data;
+
+ for (i = 0; i < NVM_CHECKSUM_REG; i++) {
+ ret_val = e1000_read_nvm(hw, i, 1, &nvm_data);
+ if (ret_val) {
+ e_dbg("NVM Read Error while updating checksum.\n");
+ return ret_val;
+ }
+ checksum += nvm_data;
+ }
+ checksum = (u16)NVM_SUM - checksum;
+ ret_val = e1000_write_nvm(hw, NVM_CHECKSUM_REG, 1, &checksum);
+ if (ret_val)
+ e_dbg("NVM Write Error while updating checksum.\n");
+
+ return ret_val;
+}
+
+/**
+ * e1000e_reload_nvm_generic - Reloads EEPROM
+ * @hw: pointer to the HW structure
+ *
+ * Reloads the EEPROM by setting the "Reinitialize from EEPROM" bit in the
+ * extended control register.
+ **/
+void e1000e_reload_nvm_generic(struct e1000_hw *hw)
+{
+ u32 ctrl_ext;
+
+ usleep_range(10, 20);
+ ctrl_ext = er32(CTRL_EXT);
+ ctrl_ext |= E1000_CTRL_EXT_EE_RST;
+ ew32(CTRL_EXT, ctrl_ext);
+ e1e_flush();
+}
diff --git a/src/nvm.h b/src/nvm.h
new file mode 100644
index 0000000..346fce4
--- /dev/null
+++ b/src/nvm.h
@@ -0,0 +1,22 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/* Copyright(c) 1999 - 2020 Intel Corporation. */
+
+#ifndef _E1000E_NVM_H_
+#define _E1000E_NVM_H_
+
+s32 e1000e_acquire_nvm(struct e1000_hw *hw);
+
+s32 e1000e_poll_eerd_eewr_done(struct e1000_hw *hw, int ee_reg);
+s32 e1000_read_mac_addr_generic(struct e1000_hw *hw);
+s32 e1000_read_pba_string_generic(struct e1000_hw *hw, u8 *pba_num,
+ u32 pba_num_size);
+s32 e1000e_read_nvm_eerd(struct e1000_hw *hw, u16 offset, u16 words, u16 *data);
+s32 e1000e_valid_led_default(struct e1000_hw *hw, u16 *data);
+s32 e1000e_validate_nvm_checksum_generic(struct e1000_hw *hw);
+s32 e1000e_write_nvm_spi(struct e1000_hw *hw, u16 offset, u16 words, u16 *data);
+s32 e1000e_update_nvm_checksum_generic(struct e1000_hw *hw);
+void e1000e_release_nvm(struct e1000_hw *hw);
+
+#define E1000_STM_OPCODE 0xDB00
+
+#endif
diff --git a/src/param.c b/src/param.c
new file mode 100644
index 0000000..9343178
--- /dev/null
+++ b/src/param.c
@@ -0,0 +1,600 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright(c) 1999 - 2020 Intel Corporation. */
+
+#include <linux/netdevice.h>
+#include <linux/module.h>
+#include <linux/pci.h>
+
+#include "e1000.h"
+
+/* This is the only thing that needs to be changed to adjust the
+ * maximum number of ports that the driver can manage.
+ */
+#define E1000_MAX_NIC 32
+
+#define OPTION_UNSET -1
+#define OPTION_DISABLED 0
+#define OPTION_ENABLED 1
+
+#define COPYBREAK_DEFAULT 256
+unsigned int copybreak = COPYBREAK_DEFAULT;
+module_param(copybreak, uint, 0644);
+MODULE_PARM_DESC(copybreak,
+ "Maximum size of packet that is copied to a new buffer on receive");
+
+/* All parameters are treated the same, as an integer array of values.
+ * This macro just reduces the need to repeat the same declaration code
+ * over and over (plus this helps to avoid typo bugs).
+ */
+#define E1000_PARAM_INIT { [0 ... E1000_MAX_NIC] = OPTION_UNSET }
+#ifndef module_param_array
+/* Module Parameters are always initialized to -1, so that the driver
+ * can tell the difference between no user specified value or the
+ * user asking for the default value.
+ * The true default values are loaded in when e1000e_check_options is called.
+ *
+ * This is a GCC extension to ANSI C.
+ * See the item "Labeled Elements in Initializers" in the section
+ * "Extensions to the C Language Family" of the GCC documentation.
+ */
+#define E1000_PARAM(X, desc) \
+ static const int X[E1000_MAX_NIC+1] __devinitconst = E1000_PARAM_INIT; \
+ static unsigned int num_##X; \
+ MODULE_PARM(X, "1-" __MODULE_STRING(E1000_MAX_NIC) "i"); \
+ MODULE_PARM_DESC(X, desc);
+#elif defined(HAVE_CONFIG_HOTPLUG)
+#define E1000_PARAM(X, desc) \
+ static int X[E1000_MAX_NIC+1] __devinitdata \
+ = E1000_PARAM_INIT; \
+ static unsigned int num_##X; \
+ module_param_array_named(X, X, int, &num_##X, 0); \
+ MODULE_PARM_DESC(X, desc);
+#else
+#define E1000_PARAM(X, desc) \
+ static int X[E1000_MAX_NIC+1] = E1000_PARAM_INIT; \
+ static unsigned int num_##X; \
+ module_param_array_named(X, X, int, &num_##X, 0); \
+ MODULE_PARM_DESC(X, desc);
+#endif
+
+/* Transmit Interrupt Delay in units of 1.024 microseconds
+ * Tx interrupt delay needs to typically be set to something non-zero
+ *
+ * Valid Range: 0-65535
+ */
+E1000_PARAM(TxIntDelay, "Transmit Interrupt Delay");
+#define DEFAULT_TIDV 8
+#define MAX_TXDELAY 0xFFFF
+#define MIN_TXDELAY 0
+
+/* Transmit Absolute Interrupt Delay in units of 1.024 microseconds
+ *
+ * Valid Range: 0-65535
+ */
+E1000_PARAM(TxAbsIntDelay, "Transmit Absolute Interrupt Delay");
+#define DEFAULT_TADV 32
+#define MAX_TXABSDELAY 0xFFFF
+#define MIN_TXABSDELAY 0
+
+/* Receive Interrupt Delay in units of 1.024 microseconds
+ * hardware will likely hang if you set this to anything but zero.
+ *
+ * Valid Range: 0-65535
+ */
+E1000_PARAM(RxIntDelay, "Receive Interrupt Delay");
+#define MAX_RXDELAY 0xFFFF
+#define MIN_RXDELAY 0
+
+/* Receive Absolute Interrupt Delay in units of 1.024 microseconds
+ *
+ * Valid Range: 0-65535
+ */
+E1000_PARAM(RxAbsIntDelay, "Receive Absolute Interrupt Delay");
+#define MAX_RXABSDELAY 0xFFFF
+#define MIN_RXABSDELAY 0
+
+/* Interrupt Throttle Rate (interrupts/sec)
+ *
+ * Valid Range: 100-100000 or one of: 0=off, 1=dynamic, 3=dynamic conservative
+ */
+E1000_PARAM(InterruptThrottleRate, "Interrupt Throttling Rate");
+#define DEFAULT_ITR 3
+#define MAX_ITR 100000
+#define MIN_ITR 100
+
+/* IntMode (Interrupt Mode)
+ *
+ * Valid Range: varies depending on kernel configuration & hardware support
+ *
+ * legacy=0, MSI=1, MSI-X=2
+ *
+ * When MSI/MSI-X support is enabled in kernel-
+ * Default Value: 2 (MSI-X) when supported by hardware, 1 (MSI) otherwise
+ * When MSI/MSI-X support is not enabled in kernel-
+ * Default Value: 0 (legacy)
+ *
+ * When a mode is specified that is not allowed/supported, it will be
+ * demoted to the most advanced interrupt mode available.
+ */
+E1000_PARAM(IntMode, "Interrupt Mode");
+#define MAX_INTMODE 2
+#define MIN_INTMODE 0
+
+/* Enable Smart Power Down of the PHY
+ *
+ * Valid Range: 0, 1
+ *
+ * Default Value: 0 (disabled)
+ */
+E1000_PARAM(SmartPowerDownEnable, "Enable PHY smart power down");
+
+/* Enable Kumeran Lock Loss workaround
+ *
+ * Valid Range: 0, 1
+ *
+ * Default Value: 1 (enabled)
+ */
+E1000_PARAM(KumeranLockLoss, "Enable Kumeran lock loss workaround");
+
+/* Enable CRC Stripping
+ *
+ * Valid Range: 0, 1
+ *
+ * Default Value: 1 (enabled)
+ */
+E1000_PARAM(CrcStripping,
+ "Enable CRC Stripping, disable if your BMC needs the CRC");
+
+/* Enable/disable EEE (a.k.a. IEEE802.3az)
+ *
+ * Valid Range: 0, 1
+ *
+ * Default Value: 1
+ */
+E1000_PARAM(EEE, "Enable/disable on parts that support the feature");
+
+/* Enable node specific allocation of all data structures, typically
+ * specific to routing setups, not generally useful.
+ *
+ * Depends on: NUMA configuration
+ *
+ * Valid Range: -1, 0-32768
+ *
+ * Default Value: -1 (disabled, default to kernel choice of node)
+ */
+E1000_PARAM(Node, "[ROUTING] Node to allocate memory on, default -1");
+
+struct e1000_option {
+ enum { enable_option, range_option, list_option } type;
+ const char *name;
+ const char *err;
+ int def;
+ union {
+ /* range_option info */
+ struct {
+ int min;
+ int max;
+ } r;
+ /* list_option info */
+ struct {
+ int nr;
+ struct e1000_opt_list {
+ int i;
+ char *str;
+ } *p;
+ } l;
+ } arg;
+};
+
+#ifdef HAVE_CONFIG_HOTPLUG
+static int __devinit e1000_validate_option(unsigned int *value,
+ const struct e1000_option *opt,
+ struct e1000_adapter *adapter)
+#else
+static int e1000_validate_option(unsigned int *value,
+ const struct e1000_option *opt,
+ struct e1000_adapter *adapter)
+#endif
+{
+ if (*value == OPTION_UNSET) {
+ *value = opt->def;
+ return 0;
+ }
+
+ switch (opt->type) {
+ case enable_option:
+ switch (*value) {
+ case OPTION_ENABLED:
+ dev_info(pci_dev_to_dev(adapter->pdev), "%s Enabled\n",
+ opt->name);
+ return 0;
+ case OPTION_DISABLED:
+ dev_info(pci_dev_to_dev(adapter->pdev), "%s Disabled\n",
+ opt->name);
+ return 0;
+ }
+ break;
+ case range_option:
+ if (*value >= opt->arg.r.min && *value <= opt->arg.r.max) {
+ dev_info(pci_dev_to_dev(adapter->pdev),
+ "%s set to %i\n", opt->name, *value);
+ return 0;
+ }
+ break;
+ case list_option: {
+ int i;
+ struct e1000_opt_list *ent;
+
+ for (i = 0; i < opt->arg.l.nr; i++) {
+ ent = &opt->arg.l.p[i];
+ if (*value == ent->i) {
+ if (ent->str[0] != '\0')
+ dev_info(pci_dev_to_dev(adapter->pdev), "%s\n",
+ ent->str);
+ return 0;
+ }
+ }
+ }
+ break;
+ default:
+ BUG();
+ }
+
+ dev_info(pci_dev_to_dev(adapter->pdev),
+ "Invalid %s value specified (%i) %s\n", opt->name, *value,
+ opt->err);
+ *value = opt->def;
+ return -1;
+}
+
+/**
+ * e1000e_check_options - Range Checking for Command Line Parameters
+ * @adapter: board private structure
+ *
+ * This routine checks all command line parameters for valid user
+ * input. If an invalid value is given, or if no user specified
+ * value exists, a default value is used. The final value is stored
+ * in a variable in the adapter structure.
+ **/
+#ifdef HAVE_CONFIG_HOTPLUG
+void __devinit e1000e_check_options(struct e1000_adapter *adapter)
+#else
+void e1000e_check_options(struct e1000_adapter *adapter)
+#endif
+{
+ struct e1000_hw *hw = &adapter->hw;
+ int bd = adapter->bd_number;
+
+ if (bd >= E1000_MAX_NIC) {
+ dev_notice(pci_dev_to_dev(adapter->pdev),
+ "Warning: no configuration for board #%i\n", bd);
+ dev_notice(pci_dev_to_dev(adapter->pdev),
+ "Using defaults for all values\n");
+ }
+
+ /* Transmit Interrupt Delay */
+ {
+ static const struct e1000_option opt = {
+ .type = range_option,
+ .name = "Transmit Interrupt Delay",
+ .err = "using default of "
+ __MODULE_STRING(DEFAULT_TIDV),
+ .def = DEFAULT_TIDV,
+ .arg = { .r = { .min = MIN_TXDELAY,
+ .max = MAX_TXDELAY } }
+ };
+
+ if (num_TxIntDelay > bd) {
+ adapter->tx_int_delay = TxIntDelay[bd];
+ e1000_validate_option(&adapter->tx_int_delay, &opt,
+ adapter);
+ } else {
+ adapter->tx_int_delay = opt.def;
+ }
+ }
+ /* Transmit Absolute Interrupt Delay */
+ {
+ static const struct e1000_option opt = {
+ .type = range_option,
+ .name = "Transmit Absolute Interrupt Delay",
+ .err = "using default of "
+ __MODULE_STRING(DEFAULT_TADV),
+ .def = DEFAULT_TADV,
+ .arg = { .r = { .min = MIN_TXABSDELAY,
+ .max = MAX_TXABSDELAY } }
+ };
+
+ if (num_TxAbsIntDelay > bd) {
+ adapter->tx_abs_int_delay = TxAbsIntDelay[bd];
+ e1000_validate_option(&adapter->tx_abs_int_delay, &opt,
+ adapter);
+ } else {
+ adapter->tx_abs_int_delay = opt.def;
+ }
+ }
+ /* Receive Interrupt Delay */
+ {
+ static struct e1000_option opt = {
+ .type = range_option,
+ .name = "Receive Interrupt Delay",
+ .err = "using default of "
+ __MODULE_STRING(DEFAULT_RDTR),
+ .def = DEFAULT_RDTR,
+ .arg = { .r = { .min = MIN_RXDELAY,
+ .max = MAX_RXDELAY } }
+ };
+
+ if (num_RxIntDelay > bd) {
+ adapter->rx_int_delay = RxIntDelay[bd];
+ e1000_validate_option(&adapter->rx_int_delay, &opt,
+ adapter);
+ } else {
+ adapter->rx_int_delay = opt.def;
+ }
+ }
+ /* Receive Absolute Interrupt Delay */
+ {
+ static const struct e1000_option opt = {
+ .type = range_option,
+ .name = "Receive Absolute Interrupt Delay",
+ .err = "using default of "
+ __MODULE_STRING(DEFAULT_RADV),
+ .def = DEFAULT_RADV,
+ .arg = { .r = { .min = MIN_RXABSDELAY,
+ .max = MAX_RXABSDELAY } }
+ };
+
+ if (num_RxAbsIntDelay > bd) {
+ adapter->rx_abs_int_delay = RxAbsIntDelay[bd];
+ e1000_validate_option(&adapter->rx_abs_int_delay, &opt,
+ adapter);
+ } else {
+ adapter->rx_abs_int_delay = opt.def;
+ }
+ }
+ /* Interrupt Throttling Rate */
+ {
+ static const struct e1000_option opt = {
+ .type = range_option,
+ .name = "Interrupt Throttling Rate (ints/sec)",
+ .err = "using default of "
+ __MODULE_STRING(DEFAULT_ITR),
+ .def = DEFAULT_ITR,
+ .arg = { .r = { .min = MIN_ITR,
+ .max = MAX_ITR } }
+ };
+
+ if (num_InterruptThrottleRate > bd) {
+ adapter->itr = InterruptThrottleRate[bd];
+
+ /* Make sure a message is printed for non-special
+ * values. And in case of an invalid option, display
+ * warning, use default and go through itr/itr_setting
+ * adjustment logic below
+ */
+ if ((adapter->itr > 4) &&
+ e1000_validate_option(&adapter->itr, &opt, adapter))
+ adapter->itr = opt.def;
+ } else {
+ /* If no option specified, use default value and go
+ * through the logic below to adjust itr/itr_setting
+ */
+ adapter->itr = opt.def;
+
+ /* Make sure a message is printed for non-special
+ * default values
+ */
+ if (adapter->itr > 4)
+ dev_info(pci_dev_to_dev(adapter->pdev),
+ "%s set to default %d\n", opt.name,
+ adapter->itr);
+ }
+
+ adapter->itr_setting = adapter->itr;
+ switch (adapter->itr) {
+ case 0:
+ dev_info(pci_dev_to_dev(adapter->pdev),
+ "%s turned off\n", opt.name);
+ break;
+ case 1:
+ dev_info(pci_dev_to_dev(adapter->pdev),
+ "%s set to dynamic mode\n", opt.name);
+ adapter->itr = 20000;
+ break;
+ case 2:
+ dev_info(pci_dev_to_dev(adapter->pdev),
+ "%s Invalid mode - setting default\n",
+ opt.name);
+ adapter->itr_setting = opt.def;
+ /* fall-through */
+ case 3:
+ dev_info(pci_dev_to_dev(adapter->pdev),
+ "%s set to dynamic conservative mode\n",
+ opt.name);
+ adapter->itr = 20000;
+ break;
+ case 4:
+ dev_info(pci_dev_to_dev(adapter->pdev),
+ "%s set to simplified (2000-8000 ints) mode\n",
+ opt.name);
+ break;
+ default:
+ /* Save the setting, because the dynamic bits
+ * change itr.
+ *
+ * Clear the lower two bits because
+ * they are used as control.
+ */
+ adapter->itr_setting &= ~3;
+ break;
+ }
+ }
+ /* Interrupt Mode */
+ {
+ static struct e1000_option opt = {
+ .type = range_option,
+ .name = "Interrupt Mode",
+#ifndef CONFIG_PCI_MSI
+ .err = "defaulting to 0 (legacy)",
+ .def = E1000E_INT_MODE_LEGACY,
+ .arg = { .r = { .min = 0,
+ .max = 0 } }
+#endif
+ };
+
+#ifdef CONFIG_PCI_MSI
+ if (adapter->flags & FLAG_HAS_MSIX) {
+ opt.err = kstrdup("defaulting to 2 (MSI-X)",
+ GFP_KERNEL);
+ opt.def = E1000E_INT_MODE_MSIX;
+ opt.arg.r.max = E1000E_INT_MODE_MSIX;
+ } else {
+ opt.err = kstrdup("defaulting to 1 (MSI)", GFP_KERNEL);
+ opt.def = E1000E_INT_MODE_MSI;
+ opt.arg.r.max = E1000E_INT_MODE_MSI;
+ }
+
+ if (!opt.err) {
+ dev_err(pci_dev_to_dev(adapter->pdev),
+ "Failed to allocate memory\n");
+ return;
+ }
+#endif
+
+ if (num_IntMode > bd) {
+ unsigned int int_mode = IntMode[bd];
+
+ e1000_validate_option(&int_mode, &opt, adapter);
+ adapter->int_mode = int_mode;
+ } else {
+ adapter->int_mode = opt.def;
+ }
+
+#ifdef CONFIG_PCI_MSI
+ kfree(opt.err);
+#endif
+ }
+ /* Smart Power Down */
+ {
+ static const struct e1000_option opt = {
+ .type = enable_option,
+ .name = "PHY Smart Power Down",
+ .err = "defaulting to Disabled",
+ .def = OPTION_DISABLED
+ };
+
+ if (num_SmartPowerDownEnable > bd) {
+ unsigned int spd = SmartPowerDownEnable[bd];
+
+ e1000_validate_option(&spd, &opt, adapter);
+ if ((adapter->flags & FLAG_HAS_SMART_POWER_DOWN) && spd)
+ adapter->flags |= FLAG_SMART_POWER_DOWN;
+ }
+ }
+ /* CRC Stripping */
+ {
+ static const struct e1000_option opt = {
+ .type = enable_option,
+ .name = "CRC Stripping",
+ .err = "defaulting to Enabled",
+ .def = OPTION_ENABLED
+ };
+
+ if (num_CrcStripping > bd) {
+ unsigned int crc_stripping = CrcStripping[bd];
+
+ e1000_validate_option(&crc_stripping, &opt, adapter);
+ if (crc_stripping == OPTION_ENABLED) {
+ adapter->flags2 |= FLAG2_CRC_STRIPPING;
+ adapter->flags2 |= FLAG2_DFLT_CRC_STRIPPING;
+ }
+ } else {
+ adapter->flags2 |= FLAG2_CRC_STRIPPING;
+ adapter->flags2 |= FLAG2_DFLT_CRC_STRIPPING;
+ }
+ }
+ /* Kumeran Lock Loss Workaround */
+ {
+ static const struct e1000_option opt = {
+ .type = enable_option,
+ .name = "Kumeran Lock Loss Workaround",
+ .err = "defaulting to Enabled",
+ .def = OPTION_ENABLED
+ };
+ bool enabled = opt.def;
+
+ if (num_KumeranLockLoss > bd) {
+ unsigned int kmrn_lock_loss = KumeranLockLoss[bd];
+
+ e1000_validate_option(&kmrn_lock_loss, &opt, adapter);
+ enabled = kmrn_lock_loss;
+ }
+
+ if (hw->mac.type == e1000_ich8lan)
+ e1000e_set_kmrn_lock_loss_workaround_ich8lan(hw,
+ enabled);
+ }
+ /* EEE for parts supporting the feature */
+ {
+ static const struct e1000_option opt = {
+ .type = enable_option,
+ .name = "EEE Support",
+ .err = "defaulting to Enabled (100T/1000T full)",
+ .def = OPTION_ENABLED
+ };
+
+ if (adapter->flags2 & FLAG2_HAS_EEE) {
+ /* Currently only supported on 82579 and newer */
+ if (num_EEE > bd) {
+ unsigned int eee = EEE[bd];
+ e1000_validate_option(&eee, &opt, adapter);
+ hw->dev_spec.ich8lan.eee_disable = !eee;
+ } else {
+ hw->dev_spec.ich8lan.eee_disable = !opt.def;
+ }
+ }
+ }
+ /* configure node specific allocation */
+ {
+ static struct e1000_option opt = {
+ .type = range_option,
+ .name = "Node used to allocate memory",
+ .err = "defaulting to -1 (disabled)",
+#ifdef HAVE_EARLY_VMALLOC_NODE
+ .def = 0,
+#else
+ .def = -1,
+#endif
+ .arg = { .r = { .min = 0,
+ .max = MAX_NUMNODES - 1 } }
+ };
+ int node = opt.def;
+
+ /* if the default was zero then we need to set the
+ * default value to an online node, which is not
+ * necessarily zero, and the constant initializer
+ * above can't take first_online_node
+ */
+ if (node == 0) {
+ /* must set opt.def for validate */
+ node = first_online_node;
+ opt.def = node;
+ }
+
+ if (num_Node > bd) {
+ node = Node[bd];
+ e1000_validate_option((unsigned int *)&node, &opt,
+ adapter);
+ if (node != OPTION_UNSET)
+ e_info("node used for allocation: %d\n", node);
+ }
+
+ /* check sanity of the value */
+ if ((node != -1) && !node_online(node)) {
+ e_info("ignoring node set to invalid value %d\n", node);
+ node = opt.def;
+ }
+
+ adapter->node = node;
+ }
+}
diff --git a/src/phy.c b/src/phy.c
new file mode 100644
index 0000000..f0921f1
--- /dev/null
+++ b/src/phy.c
@@ -0,0 +1,3222 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright(c) 1999 - 2020 Intel Corporation. */
+
+#include "e1000.h"
+
+static s32 e1000_wait_autoneg(struct e1000_hw *hw);
+static s32 e1000_access_phy_wakeup_reg_bm(struct e1000_hw *hw, u32 offset,
+ u16 *data, bool read, bool page_set);
+static u32 e1000_get_phy_addr_for_hv_page(u32 page);
+static s32 e1000_access_phy_debug_regs_hv(struct e1000_hw *hw, u32 offset,
+ u16 *data, bool read);
+
+/* Cable length tables */
+static const u16 e1000_m88_cable_length_table[] = {
+ 0, 50, 80, 110, 140, 140, E1000_CABLE_LENGTH_UNDEFINED
+};
+
+#define M88E1000_CABLE_LENGTH_TABLE_SIZE \
+ (sizeof(e1000_m88_cable_length_table) / \
+ sizeof(e1000_m88_cable_length_table[0]))
+
+static const u16 e1000_igp_2_cable_length_table[] = {
+ 0, 0, 0, 0, 0, 0, 0, 0, 3, 5, 8, 11, 13, 16, 18, 21, 0, 0, 0, 3,
+ 6, 10, 13, 16, 19, 23, 26, 29, 32, 35, 38, 41, 6, 10, 14, 18, 22,
+ 26, 30, 33, 37, 41, 44, 48, 51, 54, 58, 61, 21, 26, 31, 35, 40,
+ 44, 49, 53, 57, 61, 65, 68, 72, 75, 79, 82, 40, 45, 51, 56, 61,
+ 66, 70, 75, 79, 83, 87, 91, 94, 98, 101, 104, 60, 66, 72, 77, 82,
+ 87, 92, 96, 100, 104, 108, 111, 114, 117, 119, 121, 83, 89, 95,
+ 100, 105, 109, 113, 116, 119, 122, 124, 104, 109, 114, 118, 121,
+ 124
+};
+
+#define IGP02E1000_CABLE_LENGTH_TABLE_SIZE \
+ (sizeof(e1000_igp_2_cable_length_table) / \
+ sizeof(e1000_igp_2_cable_length_table[0]))
+
+/**
+ * e1000e_check_reset_block_generic - Check if PHY reset is blocked
+ * @hw: pointer to the HW structure
+ *
+ * Read the PHY management control register and check whether a PHY reset
+ * is blocked. If a reset is not blocked return 0, otherwise
+ * return E1000_BLK_PHY_RESET (12).
+ **/
+s32 e1000e_check_reset_block_generic(struct e1000_hw *hw)
+{
+ u32 manc;
+
+ manc = er32(MANC);
+
+ return (manc & E1000_MANC_BLK_PHY_RST_ON_IDE) ? E1000_BLK_PHY_RESET : 0;
+}
+
+/**
+ * e1000e_get_phy_id - Retrieve the PHY ID and revision
+ * @hw: pointer to the HW structure
+ *
+ * Reads the PHY registers and stores the PHY ID and possibly the PHY
+ * revision in the hardware structure.
+ **/
+s32 e1000e_get_phy_id(struct e1000_hw *hw)
+{
+ struct e1000_phy_info *phy = &hw->phy;
+ s32 ret_val = 0;
+ u16 phy_id;
+ u16 retry_count = 0;
+
+ if (!phy->ops.read_reg)
+ return 0;
+
+ while (retry_count < 2) {
+ ret_val = e1e_rphy(hw, MII_PHYSID1, &phy_id);
+ if (ret_val)
+ return ret_val;
+
+ phy->id = (u32)(phy_id << 16);
+ usleep_range(20, 40);
+ ret_val = e1e_rphy(hw, MII_PHYSID2, &phy_id);
+ if (ret_val)
+ return ret_val;
+
+ phy->id |= (u32)(phy_id & PHY_REVISION_MASK);
+ phy->revision = (u32)(phy_id & ~PHY_REVISION_MASK);
+
+ if (phy->id != 0 && phy->id != PHY_REVISION_MASK)
+ return 0;
+
+ retry_count++;
+ }
+
+ return 0;
+}
+
+/**
+ * e1000e_phy_reset_dsp - Reset PHY DSP
+ * @hw: pointer to the HW structure
+ *
+ * Reset the digital signal processor.
+ **/
+s32 e1000e_phy_reset_dsp(struct e1000_hw *hw)
+{
+ s32 ret_val;
+
+ ret_val = e1e_wphy(hw, M88E1000_PHY_GEN_CONTROL, 0xC1);
+ if (ret_val)
+ return ret_val;
+
+ return e1e_wphy(hw, M88E1000_PHY_GEN_CONTROL, 0);
+}
+
+/**
+ * e1000e_read_phy_reg_mdic - Read MDI control register
+ * @hw: pointer to the HW structure
+ * @offset: register offset to be read
+ * @data: pointer to the read data
+ *
+ * Reads the MDI control register in the PHY at offset and stores the
+ * information read to data.
+ **/
+s32 e1000e_read_phy_reg_mdic(struct e1000_hw *hw, u32 offset, u16 *data)
+{
+ struct e1000_phy_info *phy = &hw->phy;
+ u32 i, mdic = 0;
+
+ if (offset > MAX_PHY_REG_ADDRESS) {
+ e_dbg("PHY Address %d is out of range\n", offset);
+ return -E1000_ERR_PARAM;
+ }
+
+ /* Set up Op-code, Phy Address, and register offset in the MDI
+ * Control register. The MAC will take care of interfacing with the
+ * PHY to retrieve the desired data.
+ */
+ mdic = ((offset << E1000_MDIC_REG_SHIFT) |
+ (phy->addr << E1000_MDIC_PHY_SHIFT) |
+ (E1000_MDIC_OP_READ));
+
+ ew32(MDIC, mdic);
+
+ /* Poll the ready bit to see if the MDI read completed
+ * Increasing the time out as testing showed failures with
+ * the lower time out
+ */
+ for (i = 0; i < (E1000_GEN_POLL_TIMEOUT * 3); i++) {
+ udelay(50);
+ mdic = er32(MDIC);
+ if (mdic & E1000_MDIC_READY)
+ break;
+ }
+ if (!(mdic & E1000_MDIC_READY)) {
+ e_dbg("MDI Read did not complete\n");
+ return -E1000_ERR_PHY;
+ }
+ if (mdic & E1000_MDIC_ERROR) {
+ e_dbg("MDI Error\n");
+ return -E1000_ERR_PHY;
+ }
+ if (((mdic & E1000_MDIC_REG_MASK) >> E1000_MDIC_REG_SHIFT) != offset) {
+ e_dbg("MDI Read offset error - requested %d, returned %d\n",
+ offset,
+ (mdic & E1000_MDIC_REG_MASK) >> E1000_MDIC_REG_SHIFT);
+ return -E1000_ERR_PHY;
+ }
+ *data = (u16)mdic;
+
+ /* Allow some time after each MDIC transaction to avoid
+ * reading duplicate data in the next MDIC transaction.
+ */
+ if (hw->mac.type == e1000_pch2lan)
+ udelay(100);
+
+ return 0;
+}
+
+/**
+ * e1000e_write_phy_reg_mdic - Write MDI control register
+ * @hw: pointer to the HW structure
+ * @offset: register offset to write to
+ * @data: data to write to register at offset
+ *
+ * Writes data to MDI control register in the PHY at offset.
+ **/
+s32 e1000e_write_phy_reg_mdic(struct e1000_hw *hw, u32 offset, u16 data)
+{
+ struct e1000_phy_info *phy = &hw->phy;
+ u32 i, mdic = 0;
+
+ if (offset > MAX_PHY_REG_ADDRESS) {
+ e_dbg("PHY Address %d is out of range\n", offset);
+ return -E1000_ERR_PARAM;
+ }
+
+ /* Set up Op-code, Phy Address, and register offset in the MDI
+ * Control register. The MAC will take care of interfacing with the
+ * PHY to retrieve the desired data.
+ */
+ mdic = (((u32)data) |
+ (offset << E1000_MDIC_REG_SHIFT) |
+ (phy->addr << E1000_MDIC_PHY_SHIFT) |
+ (E1000_MDIC_OP_WRITE));
+
+ ew32(MDIC, mdic);
+
+ /* Poll the ready bit to see if the MDI read completed
+ * Increasing the time out as testing showed failures with
+ * the lower time out
+ */
+ for (i = 0; i < (E1000_GEN_POLL_TIMEOUT * 3); i++) {
+ udelay(50);
+ mdic = er32(MDIC);
+ if (mdic & E1000_MDIC_READY)
+ break;
+ }
+ if (!(mdic & E1000_MDIC_READY)) {
+ e_dbg("MDI Write did not complete\n");
+ return -E1000_ERR_PHY;
+ }
+ if (mdic & E1000_MDIC_ERROR) {
+ e_dbg("MDI Error\n");
+ return -E1000_ERR_PHY;
+ }
+ if (((mdic & E1000_MDIC_REG_MASK) >> E1000_MDIC_REG_SHIFT) != offset) {
+ e_dbg("MDI Write offset error - requested %d, returned %d\n",
+ offset,
+ (mdic & E1000_MDIC_REG_MASK) >> E1000_MDIC_REG_SHIFT);
+ return -E1000_ERR_PHY;
+ }
+
+ /* Allow some time after each MDIC transaction to avoid
+ * reading duplicate data in the next MDIC transaction.
+ */
+ if (hw->mac.type == e1000_pch2lan)
+ udelay(100);
+
+ return 0;
+}
+
+/**
+ * e1000e_read_phy_reg_m88 - Read m88 PHY register
+ * @hw: pointer to the HW structure
+ * @offset: register offset to be read
+ * @data: pointer to the read data
+ *
+ * Acquires semaphore, if necessary, then reads the PHY register at offset
+ * and storing the retrieved information in data. Release any acquired
+ * semaphores before exiting.
+ **/
+s32 e1000e_read_phy_reg_m88(struct e1000_hw *hw, u32 offset, u16 *data)
+{
+ s32 ret_val;
+
+ ret_val = hw->phy.ops.acquire(hw);
+ if (ret_val)
+ return ret_val;
+
+ ret_val = e1000e_read_phy_reg_mdic(hw, MAX_PHY_REG_ADDRESS & offset,
+ data);
+
+ hw->phy.ops.release(hw);
+
+ return ret_val;
+}
+
+/**
+ * e1000e_write_phy_reg_m88 - Write m88 PHY register
+ * @hw: pointer to the HW structure
+ * @offset: register offset to write to
+ * @data: data to write at register offset
+ *
+ * Acquires semaphore, if necessary, then writes the data to PHY register
+ * at the offset. Release any acquired semaphores before exiting.
+ **/
+s32 e1000e_write_phy_reg_m88(struct e1000_hw *hw, u32 offset, u16 data)
+{
+ s32 ret_val;
+
+ ret_val = hw->phy.ops.acquire(hw);
+ if (ret_val)
+ return ret_val;
+
+ ret_val = e1000e_write_phy_reg_mdic(hw, MAX_PHY_REG_ADDRESS & offset,
+ data);
+
+ hw->phy.ops.release(hw);
+
+ return ret_val;
+}
+
+/**
+ * e1000_set_page_igp - Set page as on IGP-like PHY(s)
+ * @hw: pointer to the HW structure
+ * @page: page to set (shifted left when necessary)
+ *
+ * Sets PHY page required for PHY register access. Assumes semaphore is
+ * already acquired. Note, this function sets phy.addr to 1 so the caller
+ * must set it appropriately (if necessary) after this function returns.
+ **/
+s32 e1000_set_page_igp(struct e1000_hw *hw, u16 page)
+{
+ e_dbg("Setting page 0x%x\n", page);
+
+ hw->phy.addr = 1;
+
+ return e1000e_write_phy_reg_mdic(hw, IGP01E1000_PHY_PAGE_SELECT, page);
+}
+
+/**
+ * __e1000e_read_phy_reg_igp - Read igp PHY register
+ * @hw: pointer to the HW structure
+ * @offset: register offset to be read
+ * @data: pointer to the read data
+ * @locked: semaphore has already been acquired or not
+ *
+ * Acquires semaphore, if necessary, then reads the PHY register at offset
+ * and stores the retrieved information in data. Release any acquired
+ * semaphores before exiting.
+ **/
+static s32 __e1000e_read_phy_reg_igp(struct e1000_hw *hw, u32 offset, u16 *data,
+ bool locked)
+{
+ s32 ret_val = 0;
+
+ if (!locked) {
+ if (!hw->phy.ops.acquire)
+ return 0;
+
+ ret_val = hw->phy.ops.acquire(hw);
+ if (ret_val)
+ return ret_val;
+ }
+
+ if (offset > MAX_PHY_MULTI_PAGE_REG)
+ ret_val = e1000e_write_phy_reg_mdic(hw,
+ IGP01E1000_PHY_PAGE_SELECT,
+ (u16)offset);
+ if (!ret_val)
+ ret_val = e1000e_read_phy_reg_mdic(hw,
+ MAX_PHY_REG_ADDRESS & offset,
+ data);
+ if (!locked)
+ hw->phy.ops.release(hw);
+
+ return ret_val;
+}
+
+/**
+ * e1000e_read_phy_reg_igp - Read igp PHY register
+ * @hw: pointer to the HW structure
+ * @offset: register offset to be read
+ * @data: pointer to the read data
+ *
+ * Acquires semaphore then reads the PHY register at offset and stores the
+ * retrieved information in data.
+ * Release the acquired semaphore before exiting.
+ **/
+s32 e1000e_read_phy_reg_igp(struct e1000_hw *hw, u32 offset, u16 *data)
+{
+ return __e1000e_read_phy_reg_igp(hw, offset, data, false);
+}
+
+/**
+ * e1000e_read_phy_reg_igp_locked - Read igp PHY register
+ * @hw: pointer to the HW structure
+ * @offset: register offset to be read
+ * @data: pointer to the read data
+ *
+ * Reads the PHY register at offset and stores the retrieved information
+ * in data. Assumes semaphore already acquired.
+ **/
+s32 e1000e_read_phy_reg_igp_locked(struct e1000_hw *hw, u32 offset, u16 *data)
+{
+ return __e1000e_read_phy_reg_igp(hw, offset, data, true);
+}
+
+/**
+ * e1000e_write_phy_reg_igp - Write igp PHY register
+ * @hw: pointer to the HW structure
+ * @offset: register offset to write to
+ * @data: data to write at register offset
+ * @locked: semaphore has already been acquired or not
+ *
+ * Acquires semaphore, if necessary, then writes the data to PHY register
+ * at the offset. Release any acquired semaphores before exiting.
+ **/
+static s32 __e1000e_write_phy_reg_igp(struct e1000_hw *hw, u32 offset, u16 data,
+ bool locked)
+{
+ s32 ret_val = 0;
+
+ if (!locked) {
+ if (!hw->phy.ops.acquire)
+ return 0;
+
+ ret_val = hw->phy.ops.acquire(hw);
+ if (ret_val)
+ return ret_val;
+ }
+
+ if (offset > MAX_PHY_MULTI_PAGE_REG)
+ ret_val = e1000e_write_phy_reg_mdic(hw,
+ IGP01E1000_PHY_PAGE_SELECT,
+ (u16)offset);
+ if (!ret_val)
+ ret_val = e1000e_write_phy_reg_mdic(hw, MAX_PHY_REG_ADDRESS &
+ offset, data);
+ if (!locked)
+ hw->phy.ops.release(hw);
+
+ return ret_val;
+}
+
+/**
+ * e1000e_write_phy_reg_igp - Write igp PHY register
+ * @hw: pointer to the HW structure
+ * @offset: register offset to write to
+ * @data: data to write at register offset
+ *
+ * Acquires semaphore then writes the data to PHY register
+ * at the offset. Release any acquired semaphores before exiting.
+ **/
+s32 e1000e_write_phy_reg_igp(struct e1000_hw *hw, u32 offset, u16 data)
+{
+ return __e1000e_write_phy_reg_igp(hw, offset, data, false);
+}
+
+/**
+ * e1000e_write_phy_reg_igp_locked - Write igp PHY register
+ * @hw: pointer to the HW structure
+ * @offset: register offset to write to
+ * @data: data to write at register offset
+ *
+ * Writes the data to PHY register at the offset.
+ * Assumes semaphore already acquired.
+ **/
+s32 e1000e_write_phy_reg_igp_locked(struct e1000_hw *hw, u32 offset, u16 data)
+{
+ return __e1000e_write_phy_reg_igp(hw, offset, data, true);
+}
+
+/**
+ * __e1000_read_kmrn_reg - Read kumeran register
+ * @hw: pointer to the HW structure
+ * @offset: register offset to be read
+ * @data: pointer to the read data
+ * @locked: semaphore has already been acquired or not
+ *
+ * Acquires semaphore, if necessary. Then reads the PHY register at offset
+ * using the kumeran interface. The information retrieved is stored in data.
+ * Release any acquired semaphores before exiting.
+ **/
+static s32 __e1000_read_kmrn_reg(struct e1000_hw *hw, u32 offset, u16 *data,
+ bool locked)
+{
+ u32 kmrnctrlsta;
+
+ if (!locked) {
+ s32 ret_val = 0;
+
+ if (!hw->phy.ops.acquire)
+ return 0;
+
+ ret_val = hw->phy.ops.acquire(hw);
+ if (ret_val)
+ return ret_val;
+ }
+
+ kmrnctrlsta = ((offset << E1000_KMRNCTRLSTA_OFFSET_SHIFT) &
+ E1000_KMRNCTRLSTA_OFFSET) | E1000_KMRNCTRLSTA_REN;
+ ew32(KMRNCTRLSTA, kmrnctrlsta);
+ e1e_flush();
+
+ udelay(2);
+
+ kmrnctrlsta = er32(KMRNCTRLSTA);
+ *data = (u16)kmrnctrlsta;
+
+ if (!locked)
+ hw->phy.ops.release(hw);
+
+ return 0;
+}
+
+/**
+ * e1000e_read_kmrn_reg - Read kumeran register
+ * @hw: pointer to the HW structure
+ * @offset: register offset to be read
+ * @data: pointer to the read data
+ *
+ * Acquires semaphore then reads the PHY register at offset using the
+ * kumeran interface. The information retrieved is stored in data.
+ * Release the acquired semaphore before exiting.
+ **/
+s32 e1000e_read_kmrn_reg(struct e1000_hw *hw, u32 offset, u16 *data)
+{
+ return __e1000_read_kmrn_reg(hw, offset, data, false);
+}
+
+/**
+ * e1000e_read_kmrn_reg_locked - Read kumeran register
+ * @hw: pointer to the HW structure
+ * @offset: register offset to be read
+ * @data: pointer to the read data
+ *
+ * Reads the PHY register at offset using the kumeran interface. The
+ * information retrieved is stored in data.
+ * Assumes semaphore already acquired.
+ **/
+s32 e1000e_read_kmrn_reg_locked(struct e1000_hw *hw, u32 offset, u16 *data)
+{
+ return __e1000_read_kmrn_reg(hw, offset, data, true);
+}
+
+/**
+ * __e1000_write_kmrn_reg - Write kumeran register
+ * @hw: pointer to the HW structure
+ * @offset: register offset to write to
+ * @data: data to write at register offset
+ * @locked: semaphore has already been acquired or not
+ *
+ * Acquires semaphore, if necessary. Then write the data to PHY register
+ * at the offset using the kumeran interface. Release any acquired semaphores
+ * before exiting.
+ **/
+static s32 __e1000_write_kmrn_reg(struct e1000_hw *hw, u32 offset, u16 data,
+ bool locked)
+{
+ u32 kmrnctrlsta;
+
+ if (!locked) {
+ s32 ret_val = 0;
+
+ if (!hw->phy.ops.acquire)
+ return 0;
+
+ ret_val = hw->phy.ops.acquire(hw);
+ if (ret_val)
+ return ret_val;
+ }
+
+ kmrnctrlsta = ((offset << E1000_KMRNCTRLSTA_OFFSET_SHIFT) &
+ E1000_KMRNCTRLSTA_OFFSET) | data;
+ ew32(KMRNCTRLSTA, kmrnctrlsta);
+ e1e_flush();
+
+ udelay(2);
+
+ if (!locked)
+ hw->phy.ops.release(hw);
+
+ return 0;
+}
+
+/**
+ * e1000e_write_kmrn_reg - Write kumeran register
+ * @hw: pointer to the HW structure
+ * @offset: register offset to write to
+ * @data: data to write at register offset
+ *
+ * Acquires semaphore then writes the data to the PHY register at the offset
+ * using the kumeran interface. Release the acquired semaphore before exiting.
+ **/
+s32 e1000e_write_kmrn_reg(struct e1000_hw *hw, u32 offset, u16 data)
+{
+ return __e1000_write_kmrn_reg(hw, offset, data, false);
+}
+
+/**
+ * e1000e_write_kmrn_reg_locked - Write kumeran register
+ * @hw: pointer to the HW structure
+ * @offset: register offset to write to
+ * @data: data to write at register offset
+ *
+ * Write the data to PHY register at the offset using the kumeran interface.
+ * Assumes semaphore already acquired.
+ **/
+s32 e1000e_write_kmrn_reg_locked(struct e1000_hw *hw, u32 offset, u16 data)
+{
+ return __e1000_write_kmrn_reg(hw, offset, data, true);
+}
+
+/**
+ * e1000_set_master_slave_mode - Setup PHY for Master/slave mode
+ * @hw: pointer to the HW structure
+ *
+ * Sets up Master/slave mode
+ **/
+static s32 e1000_set_master_slave_mode(struct e1000_hw *hw)
+{
+ s32 ret_val;
+ u16 phy_data;
+
+ /* Resolve Master/Slave mode */
+ ret_val = e1e_rphy(hw, MII_CTRL1000, &phy_data);
+ if (ret_val)
+ return ret_val;
+
+ /* load defaults for future use */
+ hw->phy.original_ms_type = (phy_data & CTL1000_ENABLE_MASTER) ?
+ ((phy_data & CTL1000_AS_MASTER) ?
+ e1000_ms_force_master : e1000_ms_force_slave) : e1000_ms_auto;
+
+ switch (hw->phy.ms_type) {
+ case e1000_ms_force_master:
+ phy_data |= (CTL1000_ENABLE_MASTER | CTL1000_AS_MASTER);
+ break;
+ case e1000_ms_force_slave:
+ phy_data |= CTL1000_ENABLE_MASTER;
+ phy_data &= ~(CTL1000_AS_MASTER);
+ break;
+ case e1000_ms_auto:
+ phy_data &= ~CTL1000_ENABLE_MASTER;
+ /* fall-through */
+ default:
+ break;
+ }
+
+ return e1e_wphy(hw, MII_CTRL1000, phy_data);
+}
+
+/**
+ * e1000_copper_link_setup_82577 - Setup 82577 PHY for copper link
+ * @hw: pointer to the HW structure
+ *
+ * Sets up Carrier-sense on Transmit and downshift values.
+ **/
+s32 e1000_copper_link_setup_82577(struct e1000_hw *hw)
+{
+ s32 ret_val;
+ u16 phy_data;
+
+ /* Enable CRS on Tx. This must be set for half-duplex operation. */
+ ret_val = e1e_rphy(hw, I82577_CFG_REG, &phy_data);
+ if (ret_val)
+ return ret_val;
+
+ phy_data |= I82577_CFG_ASSERT_CRS_ON_TX;
+
+ /* Enable downshift */
+ phy_data |= I82577_CFG_ENABLE_DOWNSHIFT;
+
+ ret_val = e1e_wphy(hw, I82577_CFG_REG, phy_data);
+ if (ret_val)
+ return ret_val;
+
+ /* Set MDI/MDIX mode */
+ ret_val = e1e_rphy(hw, I82577_PHY_CTRL_2, &phy_data);
+ if (ret_val)
+ return ret_val;
+ phy_data &= ~I82577_PHY_CTRL2_MDIX_CFG_MASK;
+ /* Options:
+ * 0 - Auto (default)
+ * 1 - MDI mode
+ * 2 - MDI-X mode
+ */
+ switch (hw->phy.mdix) {
+ case 1:
+ break;
+ case 2:
+ phy_data |= I82577_PHY_CTRL2_MANUAL_MDIX;
+ break;
+ case 0:
+ default:
+ phy_data |= I82577_PHY_CTRL2_AUTO_MDI_MDIX;
+ break;
+ }
+ ret_val = e1e_wphy(hw, I82577_PHY_CTRL_2, phy_data);
+ if (ret_val)
+ return ret_val;
+
+ return e1000_set_master_slave_mode(hw);
+}
+
+/**
+ * e1000e_copper_link_setup_m88 - Setup m88 PHY's for copper link
+ * @hw: pointer to the HW structure
+ *
+ * Sets up MDI/MDI-X and polarity for m88 PHY's. If necessary, transmit clock
+ * and downshift values are set also.
+ **/
+s32 e1000e_copper_link_setup_m88(struct e1000_hw *hw)
+{
+ struct e1000_phy_info *phy = &hw->phy;
+ s32 ret_val;
+ u16 phy_data;
+
+ /* Enable CRS on Tx. This must be set for half-duplex operation. */
+ ret_val = e1e_rphy(hw, M88E1000_PHY_SPEC_CTRL, &phy_data);
+ if (ret_val)
+ return ret_val;
+
+ /* For BM PHY this bit is downshift enable */
+ if (phy->type != e1000_phy_bm)
+ phy_data |= M88E1000_PSCR_ASSERT_CRS_ON_TX;
+
+ /* Options:
+ * MDI/MDI-X = 0 (default)
+ * 0 - Auto for all speeds
+ * 1 - MDI mode
+ * 2 - MDI-X mode
+ * 3 - Auto for 1000Base-T only (MDI-X for 10/100Base-T modes)
+ */
+ phy_data &= ~M88E1000_PSCR_AUTO_X_MODE;
+
+ switch (phy->mdix) {
+ case 1:
+ phy_data |= M88E1000_PSCR_MDI_MANUAL_MODE;
+ break;
+ case 2:
+ phy_data |= M88E1000_PSCR_MDIX_MANUAL_MODE;
+ break;
+ case 3:
+ phy_data |= M88E1000_PSCR_AUTO_X_1000T;
+ break;
+ case 0:
+ default:
+ phy_data |= M88E1000_PSCR_AUTO_X_MODE;
+ break;
+ }
+
+ /* Options:
+ * disable_polarity_correction = 0 (default)
+ * Automatic Correction for Reversed Cable Polarity
+ * 0 - Disabled
+ * 1 - Enabled
+ */
+ phy_data &= ~M88E1000_PSCR_POLARITY_REVERSAL;
+ if (phy->disable_polarity_correction)
+ phy_data |= M88E1000_PSCR_POLARITY_REVERSAL;
+
+ /* Enable downshift on BM (disabled by default) */
+ if (phy->type == e1000_phy_bm) {
+ /* For 82574/82583, first disable then enable downshift */
+ if (phy->id == BME1000_E_PHY_ID_R2) {
+ phy_data &= ~BME1000_PSCR_ENABLE_DOWNSHIFT;
+ ret_val = e1e_wphy(hw, M88E1000_PHY_SPEC_CTRL,
+ phy_data);
+ if (ret_val)
+ return ret_val;
+ /* Commit the changes. */
+ ret_val = phy->ops.commit(hw);
+ if (ret_val) {
+ e_dbg("Error committing the PHY changes\n");
+ return ret_val;
+ }
+ }
+
+ phy_data |= BME1000_PSCR_ENABLE_DOWNSHIFT;
+ }
+
+ ret_val = e1e_wphy(hw, M88E1000_PHY_SPEC_CTRL, phy_data);
+ if (ret_val)
+ return ret_val;
+
+ if ((phy->type == e1000_phy_m88) &&
+ (phy->revision < E1000_REVISION_4) &&
+ (phy->id != BME1000_E_PHY_ID_R2)) {
+ /* Force TX_CLK in the Extended PHY Specific Control Register
+ * to 25MHz clock.
+ */
+ ret_val = e1e_rphy(hw, M88E1000_EXT_PHY_SPEC_CTRL, &phy_data);
+ if (ret_val)
+ return ret_val;
+
+ phy_data |= M88E1000_EPSCR_TX_CLK_25;
+
+ if ((phy->revision == 2) && (phy->id == M88E1111_I_PHY_ID)) {
+ /* 82573L PHY - set the downshift counter to 5x. */
+ phy_data &= ~M88EC018_EPSCR_DOWNSHIFT_COUNTER_MASK;
+ phy_data |= M88EC018_EPSCR_DOWNSHIFT_COUNTER_5X;
+ } else {
+ /* Configure Master and Slave downshift values */
+ phy_data &= ~(M88E1000_EPSCR_MASTER_DOWNSHIFT_MASK |
+ M88E1000_EPSCR_SLAVE_DOWNSHIFT_MASK);
+ phy_data |= (M88E1000_EPSCR_MASTER_DOWNSHIFT_1X |
+ M88E1000_EPSCR_SLAVE_DOWNSHIFT_1X);
+ }
+ ret_val = e1e_wphy(hw, M88E1000_EXT_PHY_SPEC_CTRL, phy_data);
+ if (ret_val)
+ return ret_val;
+ }
+
+ if ((phy->type == e1000_phy_bm) && (phy->id == BME1000_E_PHY_ID_R2)) {
+ /* Set PHY page 0, register 29 to 0x0003 */
+ ret_val = e1e_wphy(hw, 29, 0x0003);
+ if (ret_val)
+ return ret_val;
+
+ /* Set PHY page 0, register 30 to 0x0000 */
+ ret_val = e1e_wphy(hw, 30, 0x0000);
+ if (ret_val)
+ return ret_val;
+ }
+
+ /* Commit the changes. */
+ if (phy->ops.commit) {
+ ret_val = phy->ops.commit(hw);
+ if (ret_val) {
+ e_dbg("Error committing the PHY changes\n");
+ return ret_val;
+ }
+ }
+
+ if (phy->type == e1000_phy_82578) {
+ ret_val = e1e_rphy(hw, M88E1000_EXT_PHY_SPEC_CTRL, &phy_data);
+ if (ret_val)
+ return ret_val;
+
+ /* 82578 PHY - set the downshift count to 1x. */
+ phy_data |= I82578_EPSCR_DOWNSHIFT_ENABLE;
+ phy_data &= ~I82578_EPSCR_DOWNSHIFT_COUNTER_MASK;
+ ret_val = e1e_wphy(hw, M88E1000_EXT_PHY_SPEC_CTRL, phy_data);
+ if (ret_val)
+ return ret_val;
+ }
+
+ return 0;
+}
+
+/**
+ * e1000e_copper_link_setup_igp - Setup igp PHY's for copper link
+ * @hw: pointer to the HW structure
+ *
+ * Sets up LPLU, MDI/MDI-X, polarity, Smartspeed and Master/Slave config for
+ * igp PHY's.
+ **/
+s32 e1000e_copper_link_setup_igp(struct e1000_hw *hw)
+{
+ struct e1000_phy_info *phy = &hw->phy;
+ s32 ret_val;
+ u16 data;
+
+ ret_val = e1000_phy_hw_reset(hw);
+ if (ret_val) {
+ e_dbg("Error resetting the PHY.\n");
+ return ret_val;
+ }
+
+ /* Wait 100ms for MAC to configure PHY from NVM settings, to avoid
+ * timeout issues when LFS is enabled.
+ */
+ msleep(100);
+
+ /* disable lplu d0 during driver init */
+ if (hw->phy.ops.set_d0_lplu_state) {
+ ret_val = hw->phy.ops.set_d0_lplu_state(hw, false);
+ if (ret_val) {
+ e_dbg("Error Disabling LPLU D0\n");
+ return ret_val;
+ }
+ }
+ /* Configure mdi-mdix settings */
+ ret_val = e1e_rphy(hw, IGP01E1000_PHY_PORT_CTRL, &data);
+ if (ret_val)
+ return ret_val;
+
+ data &= ~IGP01E1000_PSCR_AUTO_MDIX;
+
+ switch (phy->mdix) {
+ case 1:
+ data &= ~IGP01E1000_PSCR_FORCE_MDI_MDIX;
+ break;
+ case 2:
+ data |= IGP01E1000_PSCR_FORCE_MDI_MDIX;
+ break;
+ case 0:
+ default:
+ data |= IGP01E1000_PSCR_AUTO_MDIX;
+ break;
+ }
+ ret_val = e1e_wphy(hw, IGP01E1000_PHY_PORT_CTRL, data);
+ if (ret_val)
+ return ret_val;
+
+ /* set auto-master slave resolution settings */
+ if (hw->mac.autoneg) {
+ /* when autonegotiation advertisement is only 1000Mbps then we
+ * should disable SmartSpeed and enable Auto MasterSlave
+ * resolution as hardware default.
+ */
+ if (phy->autoneg_advertised == ADVERTISE_1000_FULL) {
+ /* Disable SmartSpeed */
+ ret_val = e1e_rphy(hw,
+ IGP01E1000_PHY_PORT_CONFIG, &data);
+ if (ret_val)
+ return ret_val;
+
+ data &= ~IGP01E1000_PSCFR_SMART_SPEED;
+ ret_val = e1e_wphy(hw,
+ IGP01E1000_PHY_PORT_CONFIG, data);
+ if (ret_val)
+ return ret_val;
+
+ /* Set auto Master/Slave resolution process */
+ ret_val = e1e_rphy(hw, MII_CTRL1000, &data);
+ if (ret_val)
+ return ret_val;
+
+ data &= ~CTL1000_ENABLE_MASTER;
+ ret_val = e1e_wphy(hw, MII_CTRL1000, data);
+ if (ret_val)
+ return ret_val;
+ }
+
+ ret_val = e1000_set_master_slave_mode(hw);
+ }
+
+ return ret_val;
+}
+
+/**
+ * e1000_phy_setup_autoneg - Configure PHY for auto-negotiation
+ * @hw: pointer to the HW structure
+ *
+ * Reads the MII auto-neg advertisement register and/or the 1000T control
+ * register and if the PHY is already setup for auto-negotiation, then
+ * return successful. Otherwise, setup advertisement and flow control to
+ * the appropriate values for the wanted auto-negotiation.
+ **/
+static s32 e1000_phy_setup_autoneg(struct e1000_hw *hw)
+{
+ struct e1000_phy_info *phy = &hw->phy;
+ s32 ret_val;
+ u16 mii_autoneg_adv_reg;
+ u16 mii_1000t_ctrl_reg = 0;
+
+ phy->autoneg_advertised &= phy->autoneg_mask;
+
+ /* Read the MII Auto-Neg Advertisement Register (Address 4). */
+ ret_val = e1e_rphy(hw, MII_ADVERTISE, &mii_autoneg_adv_reg);
+ if (ret_val)
+ return ret_val;
+
+ if (phy->autoneg_mask & ADVERTISE_1000_FULL) {
+ /* Read the MII 1000Base-T Control Register (Address 9). */
+ ret_val = e1e_rphy(hw, MII_CTRL1000, &mii_1000t_ctrl_reg);
+ if (ret_val)
+ return ret_val;
+ }
+
+ /* Need to parse both autoneg_advertised and fc and set up
+ * the appropriate PHY registers. First we will parse for
+ * autoneg_advertised software override. Since we can advertise
+ * a plethora of combinations, we need to check each bit
+ * individually.
+ */
+
+ /* First we clear all the 10/100 mb speed bits in the Auto-Neg
+ * Advertisement Register (Address 4) and the 1000 mb speed bits in
+ * the 1000Base-T Control Register (Address 9).
+ */
+ mii_autoneg_adv_reg &= ~(ADVERTISE_100FULL |
+ ADVERTISE_100HALF |
+ ADVERTISE_10FULL | ADVERTISE_10HALF);
+ mii_1000t_ctrl_reg &= ~(ADVERTISE_1000HALF | ADVERTISE_1000FULL);
+
+ e_dbg("autoneg_advertised %x\n", phy->autoneg_advertised);
+
+ /* Do we want to advertise 10 Mb Half Duplex? */
+ if (phy->autoneg_advertised & ADVERTISE_10_HALF) {
+ e_dbg("Advertise 10mb Half duplex\n");
+ mii_autoneg_adv_reg |= ADVERTISE_10HALF;
+ }
+
+ /* Do we want to advertise 10 Mb Full Duplex? */
+ if (phy->autoneg_advertised & ADVERTISE_10_FULL) {
+ e_dbg("Advertise 10mb Full duplex\n");
+ mii_autoneg_adv_reg |= ADVERTISE_10FULL;
+ }
+
+ /* Do we want to advertise 100 Mb Half Duplex? */
+ if (phy->autoneg_advertised & ADVERTISE_100_HALF) {
+ e_dbg("Advertise 100mb Half duplex\n");
+ mii_autoneg_adv_reg |= ADVERTISE_100HALF;
+ }
+
+ /* Do we want to advertise 100 Mb Full Duplex? */
+ if (phy->autoneg_advertised & ADVERTISE_100_FULL) {
+ e_dbg("Advertise 100mb Full duplex\n");
+ mii_autoneg_adv_reg |= ADVERTISE_100FULL;
+ }
+
+ /* We do not allow the Phy to advertise 1000 Mb Half Duplex */
+ if (phy->autoneg_advertised & ADVERTISE_1000_HALF)
+ e_dbg("Advertise 1000mb Half duplex request denied!\n");
+
+ /* Do we want to advertise 1000 Mb Full Duplex? */
+ if (phy->autoneg_advertised & ADVERTISE_1000_FULL) {
+ e_dbg("Advertise 1000mb Full duplex\n");
+ mii_1000t_ctrl_reg |= ADVERTISE_1000FULL;
+ }
+
+ /* Check for a software override of the flow control settings, and
+ * setup the PHY advertisement registers accordingly. If
+ * auto-negotiation is enabled, then software will have to set the
+ * "PAUSE" bits to the correct value in the Auto-Negotiation
+ * Advertisement Register (MII_ADVERTISE) and re-start auto-
+ * negotiation.
+ *
+ * The possible values of the "fc" parameter are:
+ * 0: Flow control is completely disabled
+ * 1: Rx flow control is enabled (we can receive pause frames
+ * but not send pause frames).
+ * 2: Tx flow control is enabled (we can send pause frames
+ * but we do not support receiving pause frames).
+ * 3: Both Rx and Tx flow control (symmetric) are enabled.
+ * other: No software override. The flow control configuration
+ * in the EEPROM is used.
+ */
+ switch (hw->fc.current_mode) {
+ case e1000_fc_none:
+ /* Flow control (Rx & Tx) is completely disabled by a
+ * software over-ride.
+ */
+ mii_autoneg_adv_reg &=
+ ~(ADVERTISE_PAUSE_ASYM | ADVERTISE_PAUSE_CAP);
+ break;
+ case e1000_fc_rx_pause:
+ /* Rx Flow control is enabled, and Tx Flow control is
+ * disabled, by a software over-ride.
+ *
+ * Since there really isn't a way to advertise that we are
+ * capable of Rx Pause ONLY, we will advertise that we
+ * support both symmetric and asymmetric Rx PAUSE. Later
+ * (in e1000e_config_fc_after_link_up) we will disable the
+ * hw's ability to send PAUSE frames.
+ */
+ mii_autoneg_adv_reg |=
+ (ADVERTISE_PAUSE_ASYM | ADVERTISE_PAUSE_CAP);
+ break;
+ case e1000_fc_tx_pause:
+ /* Tx Flow control is enabled, and Rx Flow control is
+ * disabled, by a software over-ride.
+ */
+ mii_autoneg_adv_reg |= ADVERTISE_PAUSE_ASYM;
+ mii_autoneg_adv_reg &= ~ADVERTISE_PAUSE_CAP;
+ break;
+ case e1000_fc_full:
+ /* Flow control (both Rx and Tx) is enabled by a software
+ * over-ride.
+ */
+ mii_autoneg_adv_reg |=
+ (ADVERTISE_PAUSE_ASYM | ADVERTISE_PAUSE_CAP);
+ break;
+ default:
+ e_dbg("Flow control param set incorrectly\n");
+ return -E1000_ERR_CONFIG;
+ }
+
+ ret_val = e1e_wphy(hw, MII_ADVERTISE, mii_autoneg_adv_reg);
+ if (ret_val)
+ return ret_val;
+
+ e_dbg("Auto-Neg Advertising %x\n", mii_autoneg_adv_reg);
+
+ if (phy->autoneg_mask & ADVERTISE_1000_FULL)
+ ret_val = e1e_wphy(hw, MII_CTRL1000, mii_1000t_ctrl_reg);
+
+ return ret_val;
+}
+
+/**
+ * e1000_copper_link_autoneg - Setup/Enable autoneg for copper link
+ * @hw: pointer to the HW structure
+ *
+ * Performs initial bounds checking on autoneg advertisement parameter, then
+ * configure to advertise the full capability. Setup the PHY to autoneg
+ * and restart the negotiation process between the link partner. If
+ * autoneg_wait_to_complete, then wait for autoneg to complete before exiting.
+ **/
+static s32 e1000_copper_link_autoneg(struct e1000_hw *hw)
+{
+ struct e1000_phy_info *phy = &hw->phy;
+ s32 ret_val;
+ u16 phy_ctrl;
+
+ /* Perform some bounds checking on the autoneg advertisement
+ * parameter.
+ */
+ phy->autoneg_advertised &= phy->autoneg_mask;
+
+ /* If autoneg_advertised is zero, we assume it was not defaulted
+ * by the calling code so we set to advertise full capability.
+ */
+ if (!phy->autoneg_advertised)
+ phy->autoneg_advertised = phy->autoneg_mask;
+
+ e_dbg("Reconfiguring auto-neg advertisement params\n");
+ ret_val = e1000_phy_setup_autoneg(hw);
+ if (ret_val) {
+ e_dbg("Error Setting up Auto-Negotiation\n");
+ return ret_val;
+ }
+ e_dbg("Restarting Auto-Neg\n");
+
+ /* Restart auto-negotiation by setting the Auto Neg Enable bit and
+ * the Auto Neg Restart bit in the PHY control register.
+ */
+ ret_val = e1e_rphy(hw, MII_BMCR, &phy_ctrl);
+ if (ret_val)
+ return ret_val;
+
+ phy_ctrl |= (BMCR_ANENABLE | BMCR_ANRESTART);
+ ret_val = e1e_wphy(hw, MII_BMCR, phy_ctrl);
+ if (ret_val)
+ return ret_val;
+
+ /* Does the user want to wait for Auto-Neg to complete here, or
+ * check at a later time (for example, callback routine).
+ */
+ if (phy->autoneg_wait_to_complete) {
+ ret_val = e1000_wait_autoneg(hw);
+ if (ret_val) {
+ e_dbg("Error while waiting for autoneg to complete\n");
+ return ret_val;
+ }
+ }
+
+ hw->mac.get_link_status = true;
+
+ return ret_val;
+}
+
+/**
+ * e1000e_setup_copper_link - Configure copper link settings
+ * @hw: pointer to the HW structure
+ *
+ * Calls the appropriate function to configure the link for auto-neg or forced
+ * speed and duplex. Then we check for link, once link is established calls
+ * to configure collision distance and flow control are called. If link is
+ * not established, we return -E1000_ERR_PHY (-2).
+ **/
+s32 e1000e_setup_copper_link(struct e1000_hw *hw)
+{
+ s32 ret_val;
+ bool link;
+
+ if (hw->mac.autoneg) {
+ /* Setup autoneg and flow control advertisement and perform
+ * autonegotiation.
+ */
+ ret_val = e1000_copper_link_autoneg(hw);
+ if (ret_val)
+ return ret_val;
+ } else {
+ /* PHY will be set to 10H, 10F, 100H or 100F
+ * depending on user settings.
+ */
+ e_dbg("Forcing Speed and Duplex\n");
+ ret_val = hw->phy.ops.force_speed_duplex(hw);
+ if (ret_val) {
+ e_dbg("Error Forcing Speed and Duplex\n");
+ return ret_val;
+ }
+ }
+
+ /* Check link status. Wait up to 100 microseconds for link to become
+ * valid.
+ */
+ ret_val = e1000e_phy_has_link_generic(hw, COPPER_LINK_UP_LIMIT, 10,
+ &link);
+ if (ret_val)
+ return ret_val;
+
+ if (link) {
+ e_dbg("Valid link established!!!\n");
+ hw->mac.ops.config_collision_dist(hw);
+ ret_val = e1000e_config_fc_after_link_up(hw);
+ } else {
+ e_dbg("Unable to establish link!!!\n");
+ }
+
+ return ret_val;
+}
+
+/**
+ * e1000e_phy_force_speed_duplex_igp - Force speed/duplex for igp PHY
+ * @hw: pointer to the HW structure
+ *
+ * Calls the PHY setup function to force speed and duplex. Clears the
+ * auto-crossover to force MDI manually. Waits for link and returns
+ * successful if link up is successful, else -E1000_ERR_PHY (-2).
+ **/
+s32 e1000e_phy_force_speed_duplex_igp(struct e1000_hw *hw)
+{
+ struct e1000_phy_info *phy = &hw->phy;
+ s32 ret_val;
+ u16 phy_data;
+ bool link;
+
+ ret_val = e1e_rphy(hw, MII_BMCR, &phy_data);
+ if (ret_val)
+ return ret_val;
+
+ e1000e_phy_force_speed_duplex_setup(hw, &phy_data);
+
+ ret_val = e1e_wphy(hw, MII_BMCR, phy_data);
+ if (ret_val)
+ return ret_val;
+
+ /* Clear Auto-Crossover to force MDI manually. IGP requires MDI
+ * forced whenever speed and duplex are forced.
+ */
+ ret_val = e1e_rphy(hw, IGP01E1000_PHY_PORT_CTRL, &phy_data);
+ if (ret_val)
+ return ret_val;
+
+ phy_data &= ~IGP01E1000_PSCR_AUTO_MDIX;
+ phy_data &= ~IGP01E1000_PSCR_FORCE_MDI_MDIX;
+
+ ret_val = e1e_wphy(hw, IGP01E1000_PHY_PORT_CTRL, phy_data);
+ if (ret_val)
+ return ret_val;
+
+ e_dbg("IGP PSCR: %X\n", phy_data);
+
+ udelay(1);
+
+ if (phy->autoneg_wait_to_complete) {
+ e_dbg("Waiting for forced speed/duplex link on IGP phy.\n");
+
+ ret_val = e1000e_phy_has_link_generic(hw, PHY_FORCE_LIMIT,
+ 100000, &link);
+ if (ret_val)
+ return ret_val;
+
+ if (!link)
+ e_dbg("Link taking longer than expected.\n");
+
+ /* Try once more */
+ ret_val = e1000e_phy_has_link_generic(hw, PHY_FORCE_LIMIT,
+ 100000, &link);
+ }
+
+ return ret_val;
+}
+
+/**
+ * e1000e_phy_force_speed_duplex_m88 - Force speed/duplex for m88 PHY
+ * @hw: pointer to the HW structure
+ *
+ * Calls the PHY setup function to force speed and duplex. Clears the
+ * auto-crossover to force MDI manually. Resets the PHY to commit the
+ * changes. If time expires while waiting for link up, we reset the DSP.
+ * After reset, TX_CLK and CRS on Tx must be set. Return successful upon
+ * successful completion, else return corresponding error code.
+ **/
+s32 e1000e_phy_force_speed_duplex_m88(struct e1000_hw *hw)
+{
+ struct e1000_phy_info *phy = &hw->phy;
+ s32 ret_val;
+ u16 phy_data;
+ bool link;
+
+ /* Clear Auto-Crossover to force MDI manually. M88E1000 requires MDI
+ * forced whenever speed and duplex are forced.
+ */
+ ret_val = e1e_rphy(hw, M88E1000_PHY_SPEC_CTRL, &phy_data);
+ if (ret_val)
+ return ret_val;
+
+ phy_data &= ~M88E1000_PSCR_AUTO_X_MODE;
+ ret_val = e1e_wphy(hw, M88E1000_PHY_SPEC_CTRL, phy_data);
+ if (ret_val)
+ return ret_val;
+
+ e_dbg("M88E1000 PSCR: %X\n", phy_data);
+
+ ret_val = e1e_rphy(hw, MII_BMCR, &phy_data);
+ if (ret_val)
+ return ret_val;
+
+ e1000e_phy_force_speed_duplex_setup(hw, &phy_data);
+
+ ret_val = e1e_wphy(hw, MII_BMCR, phy_data);
+ if (ret_val)
+ return ret_val;
+
+ /* Reset the phy to commit changes. */
+ if (hw->phy.ops.commit) {
+ ret_val = hw->phy.ops.commit(hw);
+ if (ret_val)
+ return ret_val;
+ }
+
+ if (phy->autoneg_wait_to_complete) {
+ e_dbg("Waiting for forced speed/duplex link on M88 phy.\n");
+
+ ret_val = e1000e_phy_has_link_generic(hw, PHY_FORCE_LIMIT,
+ 100000, &link);
+ if (ret_val)
+ return ret_val;
+
+ if (!link) {
+ if (hw->phy.type != e1000_phy_m88) {
+ e_dbg("Link taking longer than expected.\n");
+ } else {
+ /* We didn't get link.
+ * Reset the DSP and cross our fingers.
+ */
+ ret_val = e1e_wphy(hw,
+ M88E1000_PHY_PAGE_SELECT,
+ 0x001d);
+ if (ret_val)
+ return ret_val;
+ ret_val = e1000e_phy_reset_dsp(hw);
+ if (ret_val)
+ return ret_val;
+ }
+ }
+
+ /* Try once more */
+ ret_val = e1000e_phy_has_link_generic(hw, PHY_FORCE_LIMIT,
+ 100000, &link);
+ if (ret_val)
+ return ret_val;
+ }
+
+ if (hw->phy.type != e1000_phy_m88)
+ return 0;
+
+ ret_val = e1e_rphy(hw, M88E1000_EXT_PHY_SPEC_CTRL, &phy_data);
+ if (ret_val)
+ return ret_val;
+
+ /* Resetting the phy means we need to re-force TX_CLK in the
+ * Extended PHY Specific Control Register to 25MHz clock from
+ * the reset value of 2.5MHz.
+ */
+ phy_data |= M88E1000_EPSCR_TX_CLK_25;
+ ret_val = e1e_wphy(hw, M88E1000_EXT_PHY_SPEC_CTRL, phy_data);
+ if (ret_val)
+ return ret_val;
+
+ /* In addition, we must re-enable CRS on Tx for both half and full
+ * duplex.
+ */
+ ret_val = e1e_rphy(hw, M88E1000_PHY_SPEC_CTRL, &phy_data);
+ if (ret_val)
+ return ret_val;
+
+ phy_data |= M88E1000_PSCR_ASSERT_CRS_ON_TX;
+ ret_val = e1e_wphy(hw, M88E1000_PHY_SPEC_CTRL, phy_data);
+
+ return ret_val;
+}
+
+/**
+ * e1000_phy_force_speed_duplex_ife - Force PHY speed & duplex
+ * @hw: pointer to the HW structure
+ *
+ * Forces the speed and duplex settings of the PHY.
+ * This is a function pointer entry point only called by
+ * PHY setup routines.
+ **/
+s32 e1000_phy_force_speed_duplex_ife(struct e1000_hw *hw)
+{
+ struct e1000_phy_info *phy = &hw->phy;
+ s32 ret_val;
+ u16 data;
+ bool link;
+
+ ret_val = e1e_rphy(hw, MII_BMCR, &data);
+ if (ret_val)
+ return ret_val;
+
+ e1000e_phy_force_speed_duplex_setup(hw, &data);
+
+ ret_val = e1e_wphy(hw, MII_BMCR, data);
+ if (ret_val)
+ return ret_val;
+
+ /* Disable MDI-X support for 10/100 */
+ ret_val = e1e_rphy(hw, IFE_PHY_MDIX_CONTROL, &data);
+ if (ret_val)
+ return ret_val;
+
+ data &= ~IFE_PMC_AUTO_MDIX;
+ data &= ~IFE_PMC_FORCE_MDIX;
+
+ ret_val = e1e_wphy(hw, IFE_PHY_MDIX_CONTROL, data);
+ if (ret_val)
+ return ret_val;
+
+ e_dbg("IFE PMC: %X\n", data);
+
+ udelay(1);
+
+ if (phy->autoneg_wait_to_complete) {
+ e_dbg("Waiting for forced speed/duplex link on IFE phy.\n");
+
+ ret_val = e1000e_phy_has_link_generic(hw, PHY_FORCE_LIMIT,
+ 100000, &link);
+ if (ret_val)
+ return ret_val;
+
+ if (!link)
+ e_dbg("Link taking longer than expected.\n");
+
+ /* Try once more */
+ ret_val = e1000e_phy_has_link_generic(hw, PHY_FORCE_LIMIT,
+ 100000, &link);
+ if (ret_val)
+ return ret_val;
+ }
+
+ return 0;
+}
+
+/**
+ * e1000e_phy_force_speed_duplex_setup - Configure forced PHY speed/duplex
+ * @hw: pointer to the HW structure
+ * @phy_ctrl: pointer to current value of MII_BMCR
+ *
+ * Forces speed and duplex on the PHY by doing the following: disable flow
+ * control, force speed/duplex on the MAC, disable auto speed detection,
+ * disable auto-negotiation, configure duplex, configure speed, configure
+ * the collision distance, write configuration to CTRL register. The
+ * caller must write to the MII_BMCR register for these settings to
+ * take affect.
+ **/
+void e1000e_phy_force_speed_duplex_setup(struct e1000_hw *hw, u16 *phy_ctrl)
+{
+ struct e1000_mac_info *mac = &hw->mac;
+ u32 ctrl;
+
+ /* Turn off flow control when forcing speed/duplex */
+ hw->fc.current_mode = e1000_fc_none;
+
+ /* Force speed/duplex on the mac */
+ ctrl = er32(CTRL);
+ ctrl |= (E1000_CTRL_FRCSPD | E1000_CTRL_FRCDPX);
+ ctrl &= ~E1000_CTRL_SPD_SEL;
+
+ /* Disable Auto Speed Detection */
+ ctrl &= ~E1000_CTRL_ASDE;
+
+ /* Disable autoneg on the phy */
+ *phy_ctrl &= ~BMCR_ANENABLE;
+
+ /* Forcing Full or Half Duplex? */
+ if (mac->forced_speed_duplex & E1000_ALL_HALF_DUPLEX) {
+ ctrl &= ~E1000_CTRL_FD;
+ *phy_ctrl &= ~BMCR_FULLDPLX;
+ e_dbg("Half Duplex\n");
+ } else {
+ ctrl |= E1000_CTRL_FD;
+ *phy_ctrl |= BMCR_FULLDPLX;
+ e_dbg("Full Duplex\n");
+ }
+
+ /* Forcing 10mb or 100mb? */
+ if (mac->forced_speed_duplex & E1000_ALL_100_SPEED) {
+ ctrl |= E1000_CTRL_SPD_100;
+ *phy_ctrl |= BMCR_SPEED100;
+ *phy_ctrl &= ~BMCR_SPEED1000;
+ e_dbg("Forcing 100mb\n");
+ } else {
+ ctrl &= ~(E1000_CTRL_SPD_1000 | E1000_CTRL_SPD_100);
+ *phy_ctrl &= ~(BMCR_SPEED1000 | BMCR_SPEED100);
+ e_dbg("Forcing 10mb\n");
+ }
+
+ hw->mac.ops.config_collision_dist(hw);
+
+ ew32(CTRL, ctrl);
+}
+
+/**
+ * e1000e_set_d3_lplu_state - Sets low power link up state for D3
+ * @hw: pointer to the HW structure
+ * @active: boolean used to enable/disable lplu
+ *
+ * Success returns 0, Failure returns 1
+ *
+ * The low power link up (lplu) state is set to the power management level D3
+ * and SmartSpeed is disabled when active is true, else clear lplu for D3
+ * and enable Smartspeed. LPLU and Smartspeed are mutually exclusive. LPLU
+ * is used during Dx states where the power conservation is most important.
+ * During driver activity, SmartSpeed should be enabled so performance is
+ * maintained.
+ **/
+s32 e1000e_set_d3_lplu_state(struct e1000_hw *hw, bool active)
+{
+ struct e1000_phy_info *phy = &hw->phy;
+ s32 ret_val;
+ u16 data;
+
+ ret_val = e1e_rphy(hw, IGP02E1000_PHY_POWER_MGMT, &data);
+ if (ret_val)
+ return ret_val;
+
+ if (!active) {
+ data &= ~IGP02E1000_PM_D3_LPLU;
+ ret_val = e1e_wphy(hw, IGP02E1000_PHY_POWER_MGMT, data);
+ if (ret_val)
+ return ret_val;
+ /* LPLU and SmartSpeed are mutually exclusive. LPLU is used
+ * during Dx states where the power conservation is most
+ * important. During driver activity we should enable
+ * SmartSpeed, so performance is maintained.
+ */
+ if (phy->smart_speed == e1000_smart_speed_on) {
+ ret_val = e1e_rphy(hw,
+ IGP01E1000_PHY_PORT_CONFIG, &data);
+ if (ret_val)
+ return ret_val;
+
+ data |= IGP01E1000_PSCFR_SMART_SPEED;
+ ret_val = e1e_wphy(hw,
+ IGP01E1000_PHY_PORT_CONFIG, data);
+ if (ret_val)
+ return ret_val;
+ } else if (phy->smart_speed == e1000_smart_speed_off) {
+ ret_val = e1e_rphy(hw,
+ IGP01E1000_PHY_PORT_CONFIG, &data);
+ if (ret_val)
+ return ret_val;
+
+ data &= ~IGP01E1000_PSCFR_SMART_SPEED;
+ ret_val = e1e_wphy(hw,
+ IGP01E1000_PHY_PORT_CONFIG, data);
+ if (ret_val)
+ return ret_val;
+ }
+ } else if ((phy->autoneg_advertised == E1000_ALL_SPEED_DUPLEX) ||
+ (phy->autoneg_advertised == E1000_ALL_NOT_GIG) ||
+ (phy->autoneg_advertised == E1000_ALL_10_SPEED)) {
+ data |= IGP02E1000_PM_D3_LPLU;
+ ret_val = e1e_wphy(hw, IGP02E1000_PHY_POWER_MGMT, data);
+ if (ret_val)
+ return ret_val;
+
+ /* When LPLU is enabled, we should disable SmartSpeed */
+ ret_val = e1e_rphy(hw, IGP01E1000_PHY_PORT_CONFIG, &data);
+ if (ret_val)
+ return ret_val;
+
+ data &= ~IGP01E1000_PSCFR_SMART_SPEED;
+ ret_val = e1e_wphy(hw, IGP01E1000_PHY_PORT_CONFIG, data);
+ }
+
+ return ret_val;
+}
+
+/**
+ * e1000e_check_downshift - Checks whether a downshift in speed occurred
+ * @hw: pointer to the HW structure
+ *
+ * Success returns 0, Failure returns 1
+ *
+ * A downshift is detected by querying the PHY link health.
+ **/
+s32 e1000e_check_downshift(struct e1000_hw *hw)
+{
+ struct e1000_phy_info *phy = &hw->phy;
+ s32 ret_val;
+ u16 phy_data, offset, mask;
+
+ switch (phy->type) {
+ case e1000_phy_m88:
+ case e1000_phy_gg82563:
+ case e1000_phy_bm:
+ case e1000_phy_82578:
+ offset = M88E1000_PHY_SPEC_STATUS;
+ mask = M88E1000_PSSR_DOWNSHIFT;
+ break;
+ case e1000_phy_igp_2:
+ case e1000_phy_igp_3:
+ offset = IGP01E1000_PHY_LINK_HEALTH;
+ mask = IGP01E1000_PLHR_SS_DOWNGRADE;
+ break;
+ default:
+ /* speed downshift not supported */
+ phy->speed_downgraded = false;
+ return 0;
+ }
+
+ ret_val = e1e_rphy(hw, offset, &phy_data);
+
+ if (!ret_val)
+ phy->speed_downgraded = !!(phy_data & mask);
+
+ return ret_val;
+}
+
+/**
+ * e1000_check_polarity_m88 - Checks the polarity.
+ * @hw: pointer to the HW structure
+ *
+ * Success returns 0, Failure returns -E1000_ERR_PHY (-2)
+ *
+ * Polarity is determined based on the PHY specific status register.
+ **/
+s32 e1000_check_polarity_m88(struct e1000_hw *hw)
+{
+ struct e1000_phy_info *phy = &hw->phy;
+ s32 ret_val;
+ u16 data;
+
+ ret_val = e1e_rphy(hw, M88E1000_PHY_SPEC_STATUS, &data);
+
+ if (!ret_val)
+ phy->cable_polarity = ((data & M88E1000_PSSR_REV_POLARITY)
+ ? e1000_rev_polarity_reversed
+ : e1000_rev_polarity_normal);
+
+ return ret_val;
+}
+
+/**
+ * e1000_check_polarity_igp - Checks the polarity.
+ * @hw: pointer to the HW structure
+ *
+ * Success returns 0, Failure returns -E1000_ERR_PHY (-2)
+ *
+ * Polarity is determined based on the PHY port status register, and the
+ * current speed (since there is no polarity at 100Mbps).
+ **/
+s32 e1000_check_polarity_igp(struct e1000_hw *hw)
+{
+ struct e1000_phy_info *phy = &hw->phy;
+ s32 ret_val;
+ u16 data, offset, mask;
+
+ /* Polarity is determined based on the speed of
+ * our connection.
+ */
+ ret_val = e1e_rphy(hw, IGP01E1000_PHY_PORT_STATUS, &data);
+ if (ret_val)
+ return ret_val;
+
+ if ((data & IGP01E1000_PSSR_SPEED_MASK) ==
+ IGP01E1000_PSSR_SPEED_1000MBPS) {
+ offset = IGP01E1000_PHY_PCS_INIT_REG;
+ mask = IGP01E1000_PHY_POLARITY_MASK;
+ } else {
+ /* This really only applies to 10Mbps since
+ * there is no polarity for 100Mbps (always 0).
+ */
+ offset = IGP01E1000_PHY_PORT_STATUS;
+ mask = IGP01E1000_PSSR_POLARITY_REVERSED;
+ }
+
+ ret_val = e1e_rphy(hw, offset, &data);
+
+ if (!ret_val)
+ phy->cable_polarity = ((data & mask)
+ ? e1000_rev_polarity_reversed
+ : e1000_rev_polarity_normal);
+
+ return ret_val;
+}
+
+/**
+ * e1000_check_polarity_ife - Check cable polarity for IFE PHY
+ * @hw: pointer to the HW structure
+ *
+ * Polarity is determined on the polarity reversal feature being enabled.
+ **/
+s32 e1000_check_polarity_ife(struct e1000_hw *hw)
+{
+ struct e1000_phy_info *phy = &hw->phy;
+ s32 ret_val;
+ u16 phy_data, offset, mask;
+
+ /* Polarity is determined based on the reversal feature being enabled.
+ */
+ if (phy->polarity_correction) {
+ offset = IFE_PHY_EXTENDED_STATUS_CONTROL;
+ mask = IFE_PESC_POLARITY_REVERSED;
+ } else {
+ offset = IFE_PHY_SPECIAL_CONTROL;
+ mask = IFE_PSC_FORCE_POLARITY;
+ }
+
+ ret_val = e1e_rphy(hw, offset, &phy_data);
+
+ if (!ret_val)
+ phy->cable_polarity = ((phy_data & mask)
+ ? e1000_rev_polarity_reversed
+ : e1000_rev_polarity_normal);
+
+ return ret_val;
+}
+
+/**
+ * e1000_wait_autoneg - Wait for auto-neg completion
+ * @hw: pointer to the HW structure
+ *
+ * Waits for auto-negotiation to complete or for the auto-negotiation time
+ * limit to expire, which ever happens first.
+ **/
+static s32 e1000_wait_autoneg(struct e1000_hw *hw)
+{
+ s32 ret_val = 0;
+ u16 i, phy_status;
+
+ /* Break after autoneg completes or PHY_AUTO_NEG_LIMIT expires. */
+ for (i = PHY_AUTO_NEG_LIMIT; i > 0; i--) {
+ ret_val = e1e_rphy(hw, MII_BMSR, &phy_status);
+ if (ret_val)
+ break;
+ ret_val = e1e_rphy(hw, MII_BMSR, &phy_status);
+ if (ret_val)
+ break;
+ if (phy_status & BMSR_ANEGCOMPLETE)
+ break;
+ msleep(100);
+ }
+
+ /* PHY_AUTO_NEG_TIME expiration doesn't guarantee auto-negotiation
+ * has completed.
+ */
+ return ret_val;
+}
+
+/**
+ * e1000e_phy_has_link_generic - Polls PHY for link
+ * @hw: pointer to the HW structure
+ * @iterations: number of times to poll for link
+ * @usec_interval: delay between polling attempts
+ * @success: pointer to whether polling was successful or not
+ *
+ * Polls the PHY status register for link, 'iterations' number of times.
+ **/
+s32 e1000e_phy_has_link_generic(struct e1000_hw *hw, u32 iterations,
+ u32 usec_interval, bool *success)
+{
+ s32 ret_val = 0;
+ u16 i, phy_status;
+
+ for (i = 0; i < iterations; i++) {
+ /* Some PHYs require the MII_BMSR register to be read
+ * twice due to the link bit being sticky. No harm doing
+ * it across the board.
+ */
+ ret_val = e1e_rphy(hw, MII_BMSR, &phy_status);
+ if (ret_val) {
+ /* If the first read fails, another entity may have
+ * ownership of the resources, wait and try again to
+ * see if they have relinquished the resources yet.
+ */
+ if (usec_interval >= 1000)
+ msleep(usec_interval / 1000);
+ else
+ udelay(usec_interval);
+ }
+ ret_val = e1e_rphy(hw, MII_BMSR, &phy_status);
+ if (ret_val)
+ break;
+ if (phy_status & BMSR_LSTATUS)
+ break;
+ if (usec_interval >= 1000)
+ msleep(usec_interval / 1000);
+ else
+ udelay(usec_interval);
+ }
+
+ *success = (i < iterations);
+
+ return ret_val;
+}
+
+/**
+ * e1000e_get_cable_length_m88 - Determine cable length for m88 PHY
+ * @hw: pointer to the HW structure
+ *
+ * Reads the PHY specific status register to retrieve the cable length
+ * information. The cable length is determined by averaging the minimum and
+ * maximum values to get the "average" cable length. The m88 PHY has four
+ * possible cable length values, which are:
+ * Register Value Cable Length
+ * 0 < 50 meters
+ * 1 50 - 80 meters
+ * 2 80 - 110 meters
+ * 3 110 - 140 meters
+ * 4 > 140 meters
+ **/
+s32 e1000e_get_cable_length_m88(struct e1000_hw *hw)
+{
+ struct e1000_phy_info *phy = &hw->phy;
+ s32 ret_val;
+ u16 phy_data, index;
+
+ ret_val = e1e_rphy(hw, M88E1000_PHY_SPEC_STATUS, &phy_data);
+ if (ret_val)
+ return ret_val;
+
+ index = ((phy_data & M88E1000_PSSR_CABLE_LENGTH) >>
+ M88E1000_PSSR_CABLE_LENGTH_SHIFT);
+
+ if (index >= M88E1000_CABLE_LENGTH_TABLE_SIZE - 1)
+ return -E1000_ERR_PHY;
+
+ phy->min_cable_length = e1000_m88_cable_length_table[index];
+ phy->max_cable_length = e1000_m88_cable_length_table[index + 1];
+
+ phy->cable_length = (phy->min_cable_length + phy->max_cable_length) / 2;
+
+ return 0;
+}
+
+/**
+ * e1000e_get_cable_length_igp_2 - Determine cable length for igp2 PHY
+ * @hw: pointer to the HW structure
+ *
+ * The automatic gain control (agc) normalizes the amplitude of the
+ * received signal, adjusting for the attenuation produced by the
+ * cable. By reading the AGC registers, which represent the
+ * combination of coarse and fine gain value, the value can be put
+ * into a lookup table to obtain the approximate cable length
+ * for each channel.
+ **/
+s32 e1000e_get_cable_length_igp_2(struct e1000_hw *hw)
+{
+ struct e1000_phy_info *phy = &hw->phy;
+ s32 ret_val;
+ u16 phy_data, i, agc_value = 0;
+ u16 cur_agc_index, max_agc_index = 0;
+ u16 min_agc_index = IGP02E1000_CABLE_LENGTH_TABLE_SIZE - 1;
+ static const u16 agc_reg_array[IGP02E1000_PHY_CHANNEL_NUM] = {
+ IGP02E1000_PHY_AGC_A,
+ IGP02E1000_PHY_AGC_B,
+ IGP02E1000_PHY_AGC_C,
+ IGP02E1000_PHY_AGC_D
+ };
+
+ /* Read the AGC registers for all channels */
+ for (i = 0; i < IGP02E1000_PHY_CHANNEL_NUM; i++) {
+ ret_val = e1e_rphy(hw, agc_reg_array[i], &phy_data);
+ if (ret_val)
+ return ret_val;
+
+ /* Getting bits 15:9, which represent the combination of
+ * coarse and fine gain values. The result is a number
+ * that can be put into the lookup table to obtain the
+ * approximate cable length.
+ */
+ cur_agc_index = ((phy_data >> IGP02E1000_AGC_LENGTH_SHIFT) &
+ IGP02E1000_AGC_LENGTH_MASK);
+
+ /* Array index bound check. */
+ if ((cur_agc_index >= IGP02E1000_CABLE_LENGTH_TABLE_SIZE) ||
+ (cur_agc_index == 0))
+ return -E1000_ERR_PHY;
+
+ /* Remove min & max AGC values from calculation. */
+ if (e1000_igp_2_cable_length_table[min_agc_index] >
+ e1000_igp_2_cable_length_table[cur_agc_index])
+ min_agc_index = cur_agc_index;
+ if (e1000_igp_2_cable_length_table[max_agc_index] <
+ e1000_igp_2_cable_length_table[cur_agc_index])
+ max_agc_index = cur_agc_index;
+
+ agc_value += e1000_igp_2_cable_length_table[cur_agc_index];
+ }
+
+ agc_value -= (e1000_igp_2_cable_length_table[min_agc_index] +
+ e1000_igp_2_cable_length_table[max_agc_index]);
+ agc_value /= (IGP02E1000_PHY_CHANNEL_NUM - 2);
+
+ /* Calculate cable length with the error range of +/- 10 meters. */
+ phy->min_cable_length = (((agc_value - IGP02E1000_AGC_RANGE) > 0) ?
+ (agc_value - IGP02E1000_AGC_RANGE) : 0);
+ phy->max_cable_length = agc_value + IGP02E1000_AGC_RANGE;
+
+ phy->cable_length = (phy->min_cable_length + phy->max_cable_length) / 2;
+
+ return 0;
+}
+
+/**
+ * e1000e_get_phy_info_m88 - Retrieve PHY information
+ * @hw: pointer to the HW structure
+ *
+ * Valid for only copper links. Read the PHY status register (sticky read)
+ * to verify that link is up. Read the PHY special control register to
+ * determine the polarity and 10base-T extended distance. Read the PHY
+ * special status register to determine MDI/MDIx and current speed. If
+ * speed is 1000, then determine cable length, local and remote receiver.
+ **/
+s32 e1000e_get_phy_info_m88(struct e1000_hw *hw)
+{
+ struct e1000_phy_info *phy = &hw->phy;
+ s32 ret_val;
+ u16 phy_data;
+ bool link;
+
+ if (phy->media_type != e1000_media_type_copper) {
+ e_dbg("Phy info is only valid for copper media\n");
+ return -E1000_ERR_CONFIG;
+ }
+
+ ret_val = e1000e_phy_has_link_generic(hw, 1, 0, &link);
+ if (ret_val)
+ return ret_val;
+
+ if (!link) {
+ e_dbg("Phy info is only valid if link is up\n");
+ return -E1000_ERR_CONFIG;
+ }
+
+ ret_val = e1e_rphy(hw, M88E1000_PHY_SPEC_CTRL, &phy_data);
+ if (ret_val)
+ return ret_val;
+
+ phy->polarity_correction = !!(phy_data &
+ M88E1000_PSCR_POLARITY_REVERSAL);
+
+ ret_val = e1000_check_polarity_m88(hw);
+ if (ret_val)
+ return ret_val;
+
+ ret_val = e1e_rphy(hw, M88E1000_PHY_SPEC_STATUS, &phy_data);
+ if (ret_val)
+ return ret_val;
+
+ phy->is_mdix = !!(phy_data & M88E1000_PSSR_MDIX);
+
+ if ((phy_data & M88E1000_PSSR_SPEED) == M88E1000_PSSR_1000MBS) {
+ ret_val = hw->phy.ops.get_cable_length(hw);
+ if (ret_val)
+ return ret_val;
+
+ ret_val = e1e_rphy(hw, MII_STAT1000, &phy_data);
+ if (ret_val)
+ return ret_val;
+
+ phy->local_rx = (phy_data & LPA_1000LOCALRXOK)
+ ? e1000_1000t_rx_status_ok : e1000_1000t_rx_status_not_ok;
+
+ phy->remote_rx = (phy_data & LPA_1000REMRXOK)
+ ? e1000_1000t_rx_status_ok : e1000_1000t_rx_status_not_ok;
+ } else {
+ /* Set values to "undefined" */
+ phy->cable_length = E1000_CABLE_LENGTH_UNDEFINED;
+ phy->local_rx = e1000_1000t_rx_status_undefined;
+ phy->remote_rx = e1000_1000t_rx_status_undefined;
+ }
+
+ return ret_val;
+}
+
+/**
+ * e1000e_get_phy_info_igp - Retrieve igp PHY information
+ * @hw: pointer to the HW structure
+ *
+ * Read PHY status to determine if link is up. If link is up, then
+ * set/determine 10base-T extended distance and polarity correction. Read
+ * PHY port status to determine MDI/MDIx and speed. Based on the speed,
+ * determine on the cable length, local and remote receiver.
+ **/
+s32 e1000e_get_phy_info_igp(struct e1000_hw *hw)
+{
+ struct e1000_phy_info *phy = &hw->phy;
+ s32 ret_val;
+ u16 data;
+ bool link;
+
+ ret_val = e1000e_phy_has_link_generic(hw, 1, 0, &link);
+ if (ret_val)
+ return ret_val;
+
+ if (!link) {
+ e_dbg("Phy info is only valid if link is up\n");
+ return -E1000_ERR_CONFIG;
+ }
+
+ phy->polarity_correction = true;
+
+ ret_val = e1000_check_polarity_igp(hw);
+ if (ret_val)
+ return ret_val;
+
+ ret_val = e1e_rphy(hw, IGP01E1000_PHY_PORT_STATUS, &data);
+ if (ret_val)
+ return ret_val;
+
+ phy->is_mdix = !!(data & IGP01E1000_PSSR_MDIX);
+
+ if ((data & IGP01E1000_PSSR_SPEED_MASK) ==
+ IGP01E1000_PSSR_SPEED_1000MBPS) {
+ ret_val = phy->ops.get_cable_length(hw);
+ if (ret_val)
+ return ret_val;
+
+ ret_val = e1e_rphy(hw, MII_STAT1000, &data);
+ if (ret_val)
+ return ret_val;
+
+ phy->local_rx = (data & LPA_1000LOCALRXOK)
+ ? e1000_1000t_rx_status_ok : e1000_1000t_rx_status_not_ok;
+
+ phy->remote_rx = (data & LPA_1000REMRXOK)
+ ? e1000_1000t_rx_status_ok : e1000_1000t_rx_status_not_ok;
+ } else {
+ phy->cable_length = E1000_CABLE_LENGTH_UNDEFINED;
+ phy->local_rx = e1000_1000t_rx_status_undefined;
+ phy->remote_rx = e1000_1000t_rx_status_undefined;
+ }
+
+ return ret_val;
+}
+
+/**
+ * e1000_get_phy_info_ife - Retrieves various IFE PHY states
+ * @hw: pointer to the HW structure
+ *
+ * Populates "phy" structure with various feature states.
+ **/
+s32 e1000_get_phy_info_ife(struct e1000_hw *hw)
+{
+ struct e1000_phy_info *phy = &hw->phy;
+ s32 ret_val;
+ u16 data;
+ bool link;
+
+ ret_val = e1000e_phy_has_link_generic(hw, 1, 0, &link);
+ if (ret_val)
+ return ret_val;
+
+ if (!link) {
+ e_dbg("Phy info is only valid if link is up\n");
+ return -E1000_ERR_CONFIG;
+ }
+
+ ret_val = e1e_rphy(hw, IFE_PHY_SPECIAL_CONTROL, &data);
+ if (ret_val)
+ return ret_val;
+ phy->polarity_correction = !(data & IFE_PSC_AUTO_POLARITY_DISABLE);
+
+ if (phy->polarity_correction) {
+ ret_val = e1000_check_polarity_ife(hw);
+ if (ret_val)
+ return ret_val;
+ } else {
+ /* Polarity is forced */
+ phy->cable_polarity = ((data & IFE_PSC_FORCE_POLARITY)
+ ? e1000_rev_polarity_reversed
+ : e1000_rev_polarity_normal);
+ }
+
+ ret_val = e1e_rphy(hw, IFE_PHY_MDIX_CONTROL, &data);
+ if (ret_val)
+ return ret_val;
+
+ phy->is_mdix = !!(data & IFE_PMC_MDIX_STATUS);
+
+ /* The following parameters are undefined for 10/100 operation. */
+ phy->cable_length = E1000_CABLE_LENGTH_UNDEFINED;
+ phy->local_rx = e1000_1000t_rx_status_undefined;
+ phy->remote_rx = e1000_1000t_rx_status_undefined;
+
+ return 0;
+}
+
+/**
+ * e1000e_phy_sw_reset - PHY software reset
+ * @hw: pointer to the HW structure
+ *
+ * Does a software reset of the PHY by reading the PHY control register and
+ * setting/write the control register reset bit to the PHY.
+ **/
+s32 e1000e_phy_sw_reset(struct e1000_hw *hw)
+{
+ s32 ret_val;
+ u16 phy_ctrl;
+
+ ret_val = e1e_rphy(hw, MII_BMCR, &phy_ctrl);
+ if (ret_val)
+ return ret_val;
+
+ phy_ctrl |= BMCR_RESET;
+ ret_val = e1e_wphy(hw, MII_BMCR, phy_ctrl);
+ if (ret_val)
+ return ret_val;
+
+ udelay(1);
+
+ return ret_val;
+}
+
+/**
+ * e1000e_phy_hw_reset_generic - PHY hardware reset
+ * @hw: pointer to the HW structure
+ *
+ * Verify the reset block is not blocking us from resetting. Acquire
+ * semaphore (if necessary) and read/set/write the device control reset
+ * bit in the PHY. Wait the appropriate delay time for the device to
+ * reset and release the semaphore (if necessary).
+ **/
+s32 e1000e_phy_hw_reset_generic(struct e1000_hw *hw)
+{
+ struct e1000_phy_info *phy = &hw->phy;
+ s32 ret_val;
+ u32 ctrl;
+
+ if (phy->ops.check_reset_block) {
+ ret_val = phy->ops.check_reset_block(hw);
+ if (ret_val)
+ return 0;
+ }
+
+ ret_val = phy->ops.acquire(hw);
+ if (ret_val)
+ return ret_val;
+
+ ctrl = er32(CTRL);
+ ew32(CTRL, ctrl | E1000_CTRL_PHY_RST);
+ e1e_flush();
+
+ udelay(phy->reset_delay_us);
+
+ ew32(CTRL, ctrl);
+ e1e_flush();
+
+ usleep_range(150, 300);
+
+ phy->ops.release(hw);
+
+ return phy->ops.get_cfg_done(hw);
+}
+
+/**
+ * e1000e_get_cfg_done_generic - Generic configuration done
+ * @hw: pointer to the HW structure
+ *
+ * Generic function to wait 10 milli-seconds for configuration to complete
+ * and return success.
+ **/
+s32 e1000e_get_cfg_done_generic(struct e1000_hw __always_unused *hw)
+{
+ mdelay(10);
+
+ return 0;
+}
+
+/**
+ * e1000e_phy_init_script_igp3 - Inits the IGP3 PHY
+ * @hw: pointer to the HW structure
+ *
+ * Initializes a Intel Gigabit PHY3 when an EEPROM is not present.
+ **/
+s32 e1000e_phy_init_script_igp3(struct e1000_hw *hw)
+{
+ e_dbg("Running IGP 3 PHY init script\n");
+
+ /* PHY init IGP 3 */
+ /* Enable rise/fall, 10-mode work in class-A */
+ e1e_wphy(hw, 0x2F5B, 0x9018);
+ /* Remove all caps from Replica path filter */
+ e1e_wphy(hw, 0x2F52, 0x0000);
+ /* Bias trimming for ADC, AFE and Driver (Default) */
+ e1e_wphy(hw, 0x2FB1, 0x8B24);
+ /* Increase Hybrid poly bias */
+ e1e_wphy(hw, 0x2FB2, 0xF8F0);
+ /* Add 4% to Tx amplitude in Gig mode */
+ e1e_wphy(hw, 0x2010, 0x10B0);
+ /* Disable trimming (TTT) */
+ e1e_wphy(hw, 0x2011, 0x0000);
+ /* Poly DC correction to 94.6% + 2% for all channels */
+ e1e_wphy(hw, 0x20DD, 0x249A);
+ /* ABS DC correction to 95.9% */
+ e1e_wphy(hw, 0x20DE, 0x00D3);
+ /* BG temp curve trim */
+ e1e_wphy(hw, 0x28B4, 0x04CE);
+ /* Increasing ADC OPAMP stage 1 currents to max */
+ e1e_wphy(hw, 0x2F70, 0x29E4);
+ /* Force 1000 ( required for enabling PHY regs configuration) */
+ e1e_wphy(hw, 0x0000, 0x0140);
+ /* Set upd_freq to 6 */
+ e1e_wphy(hw, 0x1F30, 0x1606);
+ /* Disable NPDFE */
+ e1e_wphy(hw, 0x1F31, 0xB814);
+ /* Disable adaptive fixed FFE (Default) */
+ e1e_wphy(hw, 0x1F35, 0x002A);
+ /* Enable FFE hysteresis */
+ e1e_wphy(hw, 0x1F3E, 0x0067);
+ /* Fixed FFE for short cable lengths */
+ e1e_wphy(hw, 0x1F54, 0x0065);
+ /* Fixed FFE for medium cable lengths */
+ e1e_wphy(hw, 0x1F55, 0x002A);
+ /* Fixed FFE for long cable lengths */
+ e1e_wphy(hw, 0x1F56, 0x002A);
+ /* Enable Adaptive Clip Threshold */
+ e1e_wphy(hw, 0x1F72, 0x3FB0);
+ /* AHT reset limit to 1 */
+ e1e_wphy(hw, 0x1F76, 0xC0FF);
+ /* Set AHT master delay to 127 msec */
+ e1e_wphy(hw, 0x1F77, 0x1DEC);
+ /* Set scan bits for AHT */
+ e1e_wphy(hw, 0x1F78, 0xF9EF);
+ /* Set AHT Preset bits */
+ e1e_wphy(hw, 0x1F79, 0x0210);
+ /* Change integ_factor of channel A to 3 */
+ e1e_wphy(hw, 0x1895, 0x0003);
+ /* Change prop_factor of channels BCD to 8 */
+ e1e_wphy(hw, 0x1796, 0x0008);
+ /* Change cg_icount + enable integbp for channels BCD */
+ e1e_wphy(hw, 0x1798, 0xD008);
+ /* Change cg_icount + enable integbp + change prop_factor_master
+ * to 8 for channel A
+ */
+ e1e_wphy(hw, 0x1898, 0xD918);
+ /* Disable AHT in Slave mode on channel A */
+ e1e_wphy(hw, 0x187A, 0x0800);
+ /* Enable LPLU and disable AN to 1000 in non-D0a states,
+ * Enable SPD+B2B
+ */
+ e1e_wphy(hw, 0x0019, 0x008D);
+ /* Enable restart AN on an1000_dis change */
+ e1e_wphy(hw, 0x001B, 0x2080);
+ /* Enable wh_fifo read clock in 10/100 modes */
+ e1e_wphy(hw, 0x0014, 0x0045);
+ /* Restart AN, Speed selection is 1000 */
+ e1e_wphy(hw, 0x0000, 0x1340);
+
+ return 0;
+}
+
+/**
+ * e1000e_get_phy_type_from_id - Get PHY type from id
+ * @phy_id: phy_id read from the phy
+ *
+ * Returns the phy type from the id.
+ **/
+enum e1000_phy_type e1000e_get_phy_type_from_id(u32 phy_id)
+{
+ enum e1000_phy_type phy_type = e1000_phy_unknown;
+
+ switch (phy_id) {
+ case M88E1000_I_PHY_ID:
+ case M88E1000_E_PHY_ID:
+ case M88E1111_I_PHY_ID:
+ case M88E1011_I_PHY_ID:
+ phy_type = e1000_phy_m88;
+ break;
+ case IGP01E1000_I_PHY_ID: /* IGP 1 & 2 share this */
+ phy_type = e1000_phy_igp_2;
+ break;
+ case GG82563_E_PHY_ID:
+ phy_type = e1000_phy_gg82563;
+ break;
+ case IGP03E1000_E_PHY_ID:
+ phy_type = e1000_phy_igp_3;
+ break;
+ case IFE_E_PHY_ID:
+ case IFE_PLUS_E_PHY_ID:
+ case IFE_C_E_PHY_ID:
+ phy_type = e1000_phy_ife;
+ break;
+ case BME1000_E_PHY_ID:
+ case BME1000_E_PHY_ID_R2:
+ phy_type = e1000_phy_bm;
+ break;
+ case I82578_E_PHY_ID:
+ phy_type = e1000_phy_82578;
+ break;
+ case I82577_E_PHY_ID:
+ phy_type = e1000_phy_82577;
+ break;
+ case I82579_E_PHY_ID:
+ phy_type = e1000_phy_82579;
+ break;
+ case I217_E_PHY_ID:
+ phy_type = e1000_phy_i217;
+ break;
+ default:
+ phy_type = e1000_phy_unknown;
+ break;
+ }
+ return phy_type;
+}
+
+/**
+ * e1000e_determine_phy_address - Determines PHY address.
+ * @hw: pointer to the HW structure
+ *
+ * This uses a trial and error method to loop through possible PHY
+ * addresses. It tests each by reading the PHY ID registers and
+ * checking for a match.
+ **/
+s32 e1000e_determine_phy_address(struct e1000_hw *hw)
+{
+ u32 phy_addr = 0;
+ u32 i;
+ enum e1000_phy_type phy_type = e1000_phy_unknown;
+
+ hw->phy.id = phy_type;
+
+ for (phy_addr = 0; phy_addr < E1000_MAX_PHY_ADDR; phy_addr++) {
+ hw->phy.addr = phy_addr;
+ i = 0;
+
+ do {
+ e1000e_get_phy_id(hw);
+ phy_type = e1000e_get_phy_type_from_id(hw->phy.id);
+
+ /* If phy_type is valid, break - we found our
+ * PHY address
+ */
+ if (phy_type != e1000_phy_unknown)
+ return 0;
+
+ usleep_range(1000, 2000);
+ i++;
+ } while (i < 10);
+ }
+
+ return -E1000_ERR_PHY_TYPE;
+}
+
+/**
+ * e1000_get_phy_addr_for_bm_page - Retrieve PHY page address
+ * @page: page to access
+ * @reg: register to access
+ *
+ * Returns the phy address for the page requested.
+ **/
+static u32 e1000_get_phy_addr_for_bm_page(u32 page, u32 reg)
+{
+ u32 phy_addr = 2;
+
+ if ((page >= 768) || (page == 0 && reg == 25) || (reg == 31))
+ phy_addr = 1;
+
+ return phy_addr;
+}
+
+/**
+ * e1000e_write_phy_reg_bm - Write BM PHY register
+ * @hw: pointer to the HW structure
+ * @offset: register offset to write to
+ * @data: data to write at register offset
+ *
+ * Acquires semaphore, if necessary, then writes the data to PHY register
+ * at the offset. Release any acquired semaphores before exiting.
+ **/
+s32 e1000e_write_phy_reg_bm(struct e1000_hw *hw, u32 offset, u16 data)
+{
+ s32 ret_val;
+ u32 page = offset >> IGP_PAGE_SHIFT;
+
+ ret_val = hw->phy.ops.acquire(hw);
+ if (ret_val)
+ return ret_val;
+
+ /* Page 800 works differently than the rest so it has its own func */
+ if (page == BM_WUC_PAGE) {
+ ret_val = e1000_access_phy_wakeup_reg_bm(hw, offset, &data,
+ false, false);
+ goto release;
+ }
+
+ hw->phy.addr = e1000_get_phy_addr_for_bm_page(page, offset);
+
+ if (offset > MAX_PHY_MULTI_PAGE_REG) {
+ u32 page_shift, page_select;
+
+ /* Page select is register 31 for phy address 1 and 22 for
+ * phy address 2 and 3. Page select is shifted only for
+ * phy address 1.
+ */
+ if (hw->phy.addr == 1) {
+ page_shift = IGP_PAGE_SHIFT;
+ page_select = IGP01E1000_PHY_PAGE_SELECT;
+ } else {
+ page_shift = 0;
+ page_select = BM_PHY_PAGE_SELECT;
+ }
+
+ /* Page is shifted left, PHY expects (page x 32) */
+ ret_val = e1000e_write_phy_reg_mdic(hw, page_select,
+ (page << page_shift));
+ if (ret_val)
+ goto release;
+ }
+
+ ret_val = e1000e_write_phy_reg_mdic(hw, MAX_PHY_REG_ADDRESS & offset,
+ data);
+
+release:
+ hw->phy.ops.release(hw);
+ return ret_val;
+}
+
+/**
+ * e1000e_read_phy_reg_bm - Read BM PHY register
+ * @hw: pointer to the HW structure
+ * @offset: register offset to be read
+ * @data: pointer to the read data
+ *
+ * Acquires semaphore, if necessary, then reads the PHY register at offset
+ * and storing the retrieved information in data. Release any acquired
+ * semaphores before exiting.
+ **/
+s32 e1000e_read_phy_reg_bm(struct e1000_hw *hw, u32 offset, u16 *data)
+{
+ s32 ret_val;
+ u32 page = offset >> IGP_PAGE_SHIFT;
+
+ ret_val = hw->phy.ops.acquire(hw);
+ if (ret_val)
+ return ret_val;
+
+ /* Page 800 works differently than the rest so it has its own func */
+ if (page == BM_WUC_PAGE) {
+ ret_val = e1000_access_phy_wakeup_reg_bm(hw, offset, data,
+ true, false);
+ goto release;
+ }
+
+ hw->phy.addr = e1000_get_phy_addr_for_bm_page(page, offset);
+
+ if (offset > MAX_PHY_MULTI_PAGE_REG) {
+ u32 page_shift, page_select;
+
+ /* Page select is register 31 for phy address 1 and 22 for
+ * phy address 2 and 3. Page select is shifted only for
+ * phy address 1.
+ */
+ if (hw->phy.addr == 1) {
+ page_shift = IGP_PAGE_SHIFT;
+ page_select = IGP01E1000_PHY_PAGE_SELECT;
+ } else {
+ page_shift = 0;
+ page_select = BM_PHY_PAGE_SELECT;
+ }
+
+ /* Page is shifted left, PHY expects (page x 32) */
+ ret_val = e1000e_write_phy_reg_mdic(hw, page_select,
+ (page << page_shift));
+ if (ret_val)
+ goto release;
+ }
+
+ ret_val = e1000e_read_phy_reg_mdic(hw, MAX_PHY_REG_ADDRESS & offset,
+ data);
+release:
+ hw->phy.ops.release(hw);
+ return ret_val;
+}
+
+/**
+ * e1000e_read_phy_reg_bm2 - Read BM PHY register
+ * @hw: pointer to the HW structure
+ * @offset: register offset to be read
+ * @data: pointer to the read data
+ *
+ * Acquires semaphore, if necessary, then reads the PHY register at offset
+ * and storing the retrieved information in data. Release any acquired
+ * semaphores before exiting.
+ **/
+s32 e1000e_read_phy_reg_bm2(struct e1000_hw *hw, u32 offset, u16 *data)
+{
+ s32 ret_val;
+ u16 page = (u16)(offset >> IGP_PAGE_SHIFT);
+
+ ret_val = hw->phy.ops.acquire(hw);
+ if (ret_val)
+ return ret_val;
+
+ /* Page 800 works differently than the rest so it has its own func */
+ if (page == BM_WUC_PAGE) {
+ ret_val = e1000_access_phy_wakeup_reg_bm(hw, offset, data,
+ true, false);
+ goto release;
+ }
+
+ hw->phy.addr = 1;
+
+ if (offset > MAX_PHY_MULTI_PAGE_REG) {
+ /* Page is shifted left, PHY expects (page x 32) */
+ ret_val = e1000e_write_phy_reg_mdic(hw, BM_PHY_PAGE_SELECT,
+ page);
+
+ if (ret_val)
+ goto release;
+ }
+
+ ret_val = e1000e_read_phy_reg_mdic(hw, MAX_PHY_REG_ADDRESS & offset,
+ data);
+release:
+ hw->phy.ops.release(hw);
+ return ret_val;
+}
+
+/**
+ * e1000e_write_phy_reg_bm2 - Write BM PHY register
+ * @hw: pointer to the HW structure
+ * @offset: register offset to write to
+ * @data: data to write at register offset
+ *
+ * Acquires semaphore, if necessary, then writes the data to PHY register
+ * at the offset. Release any acquired semaphores before exiting.
+ **/
+s32 e1000e_write_phy_reg_bm2(struct e1000_hw *hw, u32 offset, u16 data)
+{
+ s32 ret_val;
+ u16 page = (u16)(offset >> IGP_PAGE_SHIFT);
+
+ ret_val = hw->phy.ops.acquire(hw);
+ if (ret_val)
+ return ret_val;
+
+ /* Page 800 works differently than the rest so it has its own func */
+ if (page == BM_WUC_PAGE) {
+ ret_val = e1000_access_phy_wakeup_reg_bm(hw, offset, &data,
+ false, false);
+ goto release;
+ }
+
+ hw->phy.addr = 1;
+
+ if (offset > MAX_PHY_MULTI_PAGE_REG) {
+ /* Page is shifted left, PHY expects (page x 32) */
+ ret_val = e1000e_write_phy_reg_mdic(hw, BM_PHY_PAGE_SELECT,
+ page);
+
+ if (ret_val)
+ goto release;
+ }
+
+ ret_val = e1000e_write_phy_reg_mdic(hw, MAX_PHY_REG_ADDRESS & offset,
+ data);
+
+release:
+ hw->phy.ops.release(hw);
+ return ret_val;
+}
+
+/**
+ * e1000_enable_phy_wakeup_reg_access_bm - enable access to BM wakeup registers
+ * @hw: pointer to the HW structure
+ * @phy_reg: pointer to store original contents of BM_WUC_ENABLE_REG
+ *
+ * Assumes semaphore already acquired and phy_reg points to a valid memory
+ * address to store contents of the BM_WUC_ENABLE_REG register.
+ **/
+s32 e1000_enable_phy_wakeup_reg_access_bm(struct e1000_hw *hw, u16 *phy_reg)
+{
+ s32 ret_val;
+ u16 temp;
+
+ /* All page select, port ctrl and wakeup registers use phy address 1 */
+ hw->phy.addr = 1;
+
+ /* Select Port Control Registers page */
+ ret_val = e1000_set_page_igp(hw, (BM_PORT_CTRL_PAGE << IGP_PAGE_SHIFT));
+ if (ret_val) {
+ e_dbg("Could not set Port Control page\n");
+ return ret_val;
+ }
+
+ ret_val = e1000e_read_phy_reg_mdic(hw, BM_WUC_ENABLE_REG, phy_reg);
+ if (ret_val) {
+ e_dbg("Could not read PHY register %d.%d\n",
+ BM_PORT_CTRL_PAGE, BM_WUC_ENABLE_REG);
+ return ret_val;
+ }
+
+ /* Enable both PHY wakeup mode and Wakeup register page writes.
+ * Prevent a power state change by disabling ME and Host PHY wakeup.
+ */
+ temp = *phy_reg;
+ temp |= BM_WUC_ENABLE_BIT;
+ temp &= ~(BM_WUC_ME_WU_BIT | BM_WUC_HOST_WU_BIT);
+
+ ret_val = e1000e_write_phy_reg_mdic(hw, BM_WUC_ENABLE_REG, temp);
+ if (ret_val) {
+ e_dbg("Could not write PHY register %d.%d\n",
+ BM_PORT_CTRL_PAGE, BM_WUC_ENABLE_REG);
+ return ret_val;
+ }
+
+ /* Select Host Wakeup Registers page - caller now able to write
+ * registers on the Wakeup registers page
+ */
+ return e1000_set_page_igp(hw, (BM_WUC_PAGE << IGP_PAGE_SHIFT));
+}
+
+/**
+ * e1000_disable_phy_wakeup_reg_access_bm - disable access to BM wakeup regs
+ * @hw: pointer to the HW structure
+ * @phy_reg: pointer to original contents of BM_WUC_ENABLE_REG
+ *
+ * Restore BM_WUC_ENABLE_REG to its original value.
+ *
+ * Assumes semaphore already acquired and *phy_reg is the contents of the
+ * BM_WUC_ENABLE_REG before register(s) on BM_WUC_PAGE were accessed by
+ * caller.
+ **/
+s32 e1000_disable_phy_wakeup_reg_access_bm(struct e1000_hw *hw, u16 *phy_reg)
+{
+ s32 ret_val;
+
+ /* Select Port Control Registers page */
+ ret_val = e1000_set_page_igp(hw, (BM_PORT_CTRL_PAGE << IGP_PAGE_SHIFT));
+ if (ret_val) {
+ e_dbg("Could not set Port Control page\n");
+ return ret_val;
+ }
+
+ /* Restore 769.17 to its original value */
+ ret_val = e1000e_write_phy_reg_mdic(hw, BM_WUC_ENABLE_REG, *phy_reg);
+ if (ret_val)
+ e_dbg("Could not restore PHY register %d.%d\n",
+ BM_PORT_CTRL_PAGE, BM_WUC_ENABLE_REG);
+
+ return ret_val;
+}
+
+/**
+ * e1000_access_phy_wakeup_reg_bm - Read/write BM PHY wakeup register
+ * @hw: pointer to the HW structure
+ * @offset: register offset to be read or written
+ * @data: pointer to the data to read or write
+ * @read: determines if operation is read or write
+ * @page_set: BM_WUC_PAGE already set and access enabled
+ *
+ * Read the PHY register at offset and store the retrieved information in
+ * data, or write data to PHY register at offset. Note the procedure to
+ * access the PHY wakeup registers is different than reading the other PHY
+ * registers. It works as such:
+ * 1) Set 769.17.2 (page 769, register 17, bit 2) = 1
+ * 2) Set page to 800 for host (801 if we were manageability)
+ * 3) Write the address using the address opcode (0x11)
+ * 4) Read or write the data using the data opcode (0x12)
+ * 5) Restore 769.17.2 to its original value
+ *
+ * Steps 1 and 2 are done by e1000_enable_phy_wakeup_reg_access_bm() and
+ * step 5 is done by e1000_disable_phy_wakeup_reg_access_bm().
+ *
+ * Assumes semaphore is already acquired. When page_set==true, assumes
+ * the PHY page is set to BM_WUC_PAGE (i.e. a function in the call stack
+ * is responsible for calls to e1000_[enable|disable]_phy_wakeup_reg_bm()).
+ **/
+static s32 e1000_access_phy_wakeup_reg_bm(struct e1000_hw *hw, u32 offset,
+ u16 *data, bool read, bool page_set)
+{
+ s32 ret_val;
+ u16 reg = BM_PHY_REG_NUM(offset);
+ u16 page = BM_PHY_REG_PAGE(offset);
+ u16 phy_reg = 0;
+
+ /* Gig must be disabled for MDIO accesses to Host Wakeup reg page */
+ if ((hw->mac.type == e1000_pchlan) &&
+ (!(er32(PHY_CTRL) & E1000_PHY_CTRL_GBE_DISABLE)))
+ e_dbg("Attempting to access page %d while gig enabled.\n",
+ page);
+
+ if (!page_set) {
+ /* Enable access to PHY wakeup registers */
+ ret_val = e1000_enable_phy_wakeup_reg_access_bm(hw, &phy_reg);
+ if (ret_val) {
+ e_dbg("Could not enable PHY wakeup reg access\n");
+ return ret_val;
+ }
+ }
+
+ e_dbg("Accessing PHY page %d reg 0x%x\n", page, reg);
+
+ /* Write the Wakeup register page offset value using opcode 0x11 */
+ ret_val = e1000e_write_phy_reg_mdic(hw, BM_WUC_ADDRESS_OPCODE, reg);
+ if (ret_val) {
+ e_dbg("Could not write address opcode to page %d\n", page);
+ return ret_val;
+ }
+
+ if (read) {
+ /* Read the Wakeup register page value using opcode 0x12 */
+ ret_val = e1000e_read_phy_reg_mdic(hw, BM_WUC_DATA_OPCODE,
+ data);
+ } else {
+ /* Write the Wakeup register page value using opcode 0x12 */
+ ret_val = e1000e_write_phy_reg_mdic(hw, BM_WUC_DATA_OPCODE,
+ *data);
+ }
+
+ if (ret_val) {
+ e_dbg("Could not access PHY reg %d.%d\n", page, reg);
+ return ret_val;
+ }
+
+ if (!page_set)
+ ret_val = e1000_disable_phy_wakeup_reg_access_bm(hw, &phy_reg);
+
+ return ret_val;
+}
+
+/**
+ * e1000_power_up_phy_copper - Restore copper link in case of PHY power down
+ * @hw: pointer to the HW structure
+ *
+ * In the case of a PHY power down to save power, or to turn off link during a
+ * driver unload, or wake on lan is not enabled, restore the link to previous
+ * settings.
+ **/
+void e1000_power_up_phy_copper(struct e1000_hw *hw)
+{
+ u16 mii_reg = 0;
+
+ /* The PHY will retain its settings across a power down/up cycle */
+ e1e_rphy(hw, MII_BMCR, &mii_reg);
+ mii_reg &= ~BMCR_PDOWN;
+ e1e_wphy(hw, MII_BMCR, mii_reg);
+}
+
+/**
+ * e1000_power_down_phy_copper - Restore copper link in case of PHY power down
+ * @hw: pointer to the HW structure
+ *
+ * In the case of a PHY power down to save power, or to turn off link during a
+ * driver unload, or wake on lan is not enabled, restore the link to previous
+ * settings.
+ **/
+void e1000_power_down_phy_copper(struct e1000_hw *hw)
+{
+ u16 mii_reg = 0;
+
+ /* The PHY will retain its settings across a power down/up cycle */
+ e1e_rphy(hw, MII_BMCR, &mii_reg);
+ mii_reg |= BMCR_PDOWN;
+ e1e_wphy(hw, MII_BMCR, mii_reg);
+ usleep_range(1000, 2000);
+}
+
+/**
+ * __e1000_read_phy_reg_hv - Read HV PHY register
+ * @hw: pointer to the HW structure
+ * @offset: register offset to be read
+ * @data: pointer to the read data
+ * @locked: semaphore has already been acquired or not
+ * @page_set: BM_WUC_PAGE already set and access enabled
+ *
+ * Acquires semaphore, if necessary, then reads the PHY register at offset
+ * and stores the retrieved information in data. Release any acquired
+ * semaphore before exiting.
+ **/
+static s32 __e1000_read_phy_reg_hv(struct e1000_hw *hw, u32 offset, u16 *data,
+ bool locked, bool page_set)
+{
+ s32 ret_val;
+ u16 page = BM_PHY_REG_PAGE(offset);
+ u16 reg = BM_PHY_REG_NUM(offset);
+ u32 phy_addr = hw->phy.addr = e1000_get_phy_addr_for_hv_page(page);
+
+ if (!locked) {
+ ret_val = hw->phy.ops.acquire(hw);
+ if (ret_val)
+ return ret_val;
+ }
+ /* Page 800 works differently than the rest so it has its own func */
+ if (page == BM_WUC_PAGE) {
+ ret_val = e1000_access_phy_wakeup_reg_bm(hw, offset, data,
+ true, page_set);
+ goto out;
+ }
+
+ if (page > 0 && page < HV_INTC_FC_PAGE_START) {
+ ret_val = e1000_access_phy_debug_regs_hv(hw, offset,
+ data, true);
+ goto out;
+ }
+
+ if (!page_set) {
+ if (page == HV_INTC_FC_PAGE_START)
+ page = 0;
+
+ if (reg > MAX_PHY_MULTI_PAGE_REG) {
+ /* Page is shifted left, PHY expects (page x 32) */
+ ret_val = e1000_set_page_igp(hw,
+ (page << IGP_PAGE_SHIFT));
+
+ hw->phy.addr = phy_addr;
+
+ if (ret_val)
+ goto out;
+ }
+ }
+
+ e_dbg("reading PHY page %d (or 0x%x shifted) reg 0x%x\n", page,
+ page << IGP_PAGE_SHIFT, reg);
+
+ ret_val = e1000e_read_phy_reg_mdic(hw, MAX_PHY_REG_ADDRESS & reg, data);
+out:
+ if (!locked)
+ hw->phy.ops.release(hw);
+
+ return ret_val;
+}
+
+/**
+ * e1000_read_phy_reg_hv - Read HV PHY register
+ * @hw: pointer to the HW structure
+ * @offset: register offset to be read
+ * @data: pointer to the read data
+ *
+ * Acquires semaphore then reads the PHY register at offset and stores
+ * the retrieved information in data. Release the acquired semaphore
+ * before exiting.
+ **/
+s32 e1000_read_phy_reg_hv(struct e1000_hw *hw, u32 offset, u16 *data)
+{
+ return __e1000_read_phy_reg_hv(hw, offset, data, false, false);
+}
+
+/**
+ * e1000_read_phy_reg_hv_locked - Read HV PHY register
+ * @hw: pointer to the HW structure
+ * @offset: register offset to be read
+ * @data: pointer to the read data
+ *
+ * Reads the PHY register at offset and stores the retrieved information
+ * in data. Assumes semaphore already acquired.
+ **/
+s32 e1000_read_phy_reg_hv_locked(struct e1000_hw *hw, u32 offset, u16 *data)
+{
+ return __e1000_read_phy_reg_hv(hw, offset, data, true, false);
+}
+
+/**
+ * e1000_read_phy_reg_page_hv - Read HV PHY register
+ * @hw: pointer to the HW structure
+ * @offset: register offset to write to
+ * @data: data to write at register offset
+ *
+ * Reads the PHY register at offset and stores the retrieved information
+ * in data. Assumes semaphore already acquired and page already set.
+ **/
+s32 e1000_read_phy_reg_page_hv(struct e1000_hw *hw, u32 offset, u16 *data)
+{
+ return __e1000_read_phy_reg_hv(hw, offset, data, true, true);
+}
+
+/**
+ * __e1000_write_phy_reg_hv - Write HV PHY register
+ * @hw: pointer to the HW structure
+ * @offset: register offset to write to
+ * @data: data to write at register offset
+ * @locked: semaphore has already been acquired or not
+ * @page_set: BM_WUC_PAGE already set and access enabled
+ *
+ * Acquires semaphore, if necessary, then writes the data to PHY register
+ * at the offset. Release any acquired semaphores before exiting.
+ **/
+static s32 __e1000_write_phy_reg_hv(struct e1000_hw *hw, u32 offset, u16 data,
+ bool locked, bool page_set)
+{
+ s32 ret_val;
+ u16 page = BM_PHY_REG_PAGE(offset);
+ u16 reg = BM_PHY_REG_NUM(offset);
+ u32 phy_addr = hw->phy.addr = e1000_get_phy_addr_for_hv_page(page);
+
+ if (!locked) {
+ ret_val = hw->phy.ops.acquire(hw);
+ if (ret_val)
+ return ret_val;
+ }
+ /* Page 800 works differently than the rest so it has its own func */
+ if (page == BM_WUC_PAGE) {
+ ret_val = e1000_access_phy_wakeup_reg_bm(hw, offset, &data,
+ false, page_set);
+ goto out;
+ }
+
+ if (page > 0 && page < HV_INTC_FC_PAGE_START) {
+ ret_val = e1000_access_phy_debug_regs_hv(hw, offset,
+ &data, false);
+ goto out;
+ }
+
+ if (!page_set) {
+ if (page == HV_INTC_FC_PAGE_START)
+ page = 0;
+
+ /* Workaround MDIO accesses being disabled after entering IEEE
+ * Power Down (when bit 11 of the PHY Control register is set)
+ */
+ if ((hw->phy.type == e1000_phy_82578) &&
+ (hw->phy.revision >= 1) &&
+ (hw->phy.addr == 2) &&
+ !(MAX_PHY_REG_ADDRESS & reg) && (data & (1 << 11))) {
+ u16 data2 = 0x7EFF;
+ ret_val = e1000_access_phy_debug_regs_hv(hw,
+ (1 << 6) | 0x3,
+ &data2, false);
+ if (ret_val)
+ goto out;
+ }
+
+ if (reg > MAX_PHY_MULTI_PAGE_REG) {
+ /* Page is shifted left, PHY expects (page x 32) */
+ ret_val = e1000_set_page_igp(hw,
+ (page << IGP_PAGE_SHIFT));
+
+ hw->phy.addr = phy_addr;
+
+ if (ret_val)
+ goto out;
+ }
+ }
+
+ e_dbg("writing PHY page %d (or 0x%x shifted) reg 0x%x\n", page,
+ page << IGP_PAGE_SHIFT, reg);
+
+ ret_val = e1000e_write_phy_reg_mdic(hw, MAX_PHY_REG_ADDRESS & reg,
+ data);
+
+out:
+ if (!locked)
+ hw->phy.ops.release(hw);
+
+ return ret_val;
+}
+
+/**
+ * e1000_write_phy_reg_hv - Write HV PHY register
+ * @hw: pointer to the HW structure
+ * @offset: register offset to write to
+ * @data: data to write at register offset
+ *
+ * Acquires semaphore then writes the data to PHY register at the offset.
+ * Release the acquired semaphores before exiting.
+ **/
+s32 e1000_write_phy_reg_hv(struct e1000_hw *hw, u32 offset, u16 data)
+{
+ return __e1000_write_phy_reg_hv(hw, offset, data, false, false);
+}
+
+/**
+ * e1000_write_phy_reg_hv_locked - Write HV PHY register
+ * @hw: pointer to the HW structure
+ * @offset: register offset to write to
+ * @data: data to write at register offset
+ *
+ * Writes the data to PHY register at the offset. Assumes semaphore
+ * already acquired.
+ **/
+s32 e1000_write_phy_reg_hv_locked(struct e1000_hw *hw, u32 offset, u16 data)
+{
+ return __e1000_write_phy_reg_hv(hw, offset, data, true, false);
+}
+
+/**
+ * e1000_write_phy_reg_page_hv - Write HV PHY register
+ * @hw: pointer to the HW structure
+ * @offset: register offset to write to
+ * @data: data to write at register offset
+ *
+ * Writes the data to PHY register at the offset. Assumes semaphore
+ * already acquired and page already set.
+ **/
+s32 e1000_write_phy_reg_page_hv(struct e1000_hw *hw, u32 offset, u16 data)
+{
+ return __e1000_write_phy_reg_hv(hw, offset, data, true, true);
+}
+
+/**
+ * e1000_get_phy_addr_for_hv_page - Get PHY address based on page
+ * @page: page to be accessed
+ **/
+static u32 e1000_get_phy_addr_for_hv_page(u32 page)
+{
+ u32 phy_addr = 2;
+
+ if (page >= HV_INTC_FC_PAGE_START)
+ phy_addr = 1;
+
+ return phy_addr;
+}
+
+/**
+ * e1000_access_phy_debug_regs_hv - Read HV PHY vendor specific high registers
+ * @hw: pointer to the HW structure
+ * @offset: register offset to be read or written
+ * @data: pointer to the data to be read or written
+ * @read: determines if operation is read or write
+ *
+ * Reads the PHY register at offset and stores the retreived information
+ * in data. Assumes semaphore already acquired. Note that the procedure
+ * to access these regs uses the address port and data port to read/write.
+ * These accesses done with PHY address 2 and without using pages.
+ **/
+static s32 e1000_access_phy_debug_regs_hv(struct e1000_hw *hw, u32 offset,
+ u16 *data, bool read)
+{
+ s32 ret_val;
+ u32 addr_reg;
+ u32 data_reg;
+
+ /* This takes care of the difference with desktop vs mobile phy */
+ addr_reg = ((hw->phy.type == e1000_phy_82578) ?
+ I82578_ADDR_REG : I82577_ADDR_REG);
+ data_reg = addr_reg + 1;
+
+ /* All operations in this function are phy address 2 */
+ hw->phy.addr = 2;
+
+ /* masking with 0x3F to remove the page from offset */
+ ret_val = e1000e_write_phy_reg_mdic(hw, addr_reg, (u16)offset & 0x3F);
+ if (ret_val) {
+ e_dbg("Could not write the Address Offset port register\n");
+ return ret_val;
+ }
+
+ /* Read or write the data value next */
+ if (read)
+ ret_val = e1000e_read_phy_reg_mdic(hw, data_reg, data);
+ else
+ ret_val = e1000e_write_phy_reg_mdic(hw, data_reg, *data);
+
+ if (ret_val)
+ e_dbg("Could not access the Data port register\n");
+
+ return ret_val;
+}
+
+/**
+ * e1000_link_stall_workaround_hv - Si workaround
+ * @hw: pointer to the HW structure
+ *
+ * This function works around a Si bug where the link partner can get
+ * a link up indication before the PHY does. If small packets are sent
+ * by the link partner they can be placed in the packet buffer without
+ * being properly accounted for by the PHY and will stall preventing
+ * further packets from being received. The workaround is to clear the
+ * packet buffer after the PHY detects link up.
+ **/
+s32 e1000_link_stall_workaround_hv(struct e1000_hw *hw)
+{
+ s32 ret_val = 0;
+ u16 data;
+
+ if (hw->phy.type != e1000_phy_82578)
+ return 0;
+
+ /* Do not apply workaround if in PHY loopback bit 14 set */
+ e1e_rphy(hw, MII_BMCR, &data);
+ if (data & BMCR_LOOPBACK)
+ return 0;
+
+ /* check if link is up and at 1Gbps */
+ ret_val = e1e_rphy(hw, BM_CS_STATUS, &data);
+ if (ret_val)
+ return ret_val;
+
+ data &= (BM_CS_STATUS_LINK_UP | BM_CS_STATUS_RESOLVED |
+ BM_CS_STATUS_SPEED_MASK);
+
+ if (data != (BM_CS_STATUS_LINK_UP | BM_CS_STATUS_RESOLVED |
+ BM_CS_STATUS_SPEED_1000))
+ return 0;
+
+ msleep(200);
+
+ /* flush the packets in the fifo buffer */
+ ret_val = e1e_wphy(hw, HV_MUX_DATA_CTRL,
+ (HV_MUX_DATA_CTRL_GEN_TO_MAC |
+ HV_MUX_DATA_CTRL_FORCE_SPEED));
+ if (ret_val)
+ return ret_val;
+
+ return e1e_wphy(hw, HV_MUX_DATA_CTRL, HV_MUX_DATA_CTRL_GEN_TO_MAC);
+}
+
+/**
+ * e1000_check_polarity_82577 - Checks the polarity.
+ * @hw: pointer to the HW structure
+ *
+ * Success returns 0, Failure returns -E1000_ERR_PHY (-2)
+ *
+ * Polarity is determined based on the PHY specific status register.
+ **/
+s32 e1000_check_polarity_82577(struct e1000_hw *hw)
+{
+ struct e1000_phy_info *phy = &hw->phy;
+ s32 ret_val;
+ u16 data;
+
+ ret_val = e1e_rphy(hw, I82577_PHY_STATUS_2, &data);
+
+ if (!ret_val)
+ phy->cable_polarity = ((data & I82577_PHY_STATUS2_REV_POLARITY)
+ ? e1000_rev_polarity_reversed
+ : e1000_rev_polarity_normal);
+
+ return ret_val;
+}
+
+/**
+ * e1000_phy_force_speed_duplex_82577 - Force speed/duplex for I82577 PHY
+ * @hw: pointer to the HW structure
+ *
+ * Calls the PHY setup function to force speed and duplex.
+ **/
+s32 e1000_phy_force_speed_duplex_82577(struct e1000_hw *hw)
+{
+ struct e1000_phy_info *phy = &hw->phy;
+ s32 ret_val;
+ u16 phy_data;
+ bool link;
+
+ ret_val = e1e_rphy(hw, MII_BMCR, &phy_data);
+ if (ret_val)
+ return ret_val;
+
+ e1000e_phy_force_speed_duplex_setup(hw, &phy_data);
+
+ ret_val = e1e_wphy(hw, MII_BMCR, phy_data);
+ if (ret_val)
+ return ret_val;
+
+ udelay(1);
+
+ if (phy->autoneg_wait_to_complete) {
+ e_dbg("Waiting for forced speed/duplex link on 82577 phy\n");
+
+ ret_val = e1000e_phy_has_link_generic(hw, PHY_FORCE_LIMIT,
+ 100000, &link);
+ if (ret_val)
+ return ret_val;
+
+ if (!link)
+ e_dbg("Link taking longer than expected.\n");
+
+ /* Try once more */
+ ret_val = e1000e_phy_has_link_generic(hw, PHY_FORCE_LIMIT,
+ 100000, &link);
+ }
+
+ return ret_val;
+}
+
+/**
+ * e1000_get_phy_info_82577 - Retrieve I82577 PHY information
+ * @hw: pointer to the HW structure
+ *
+ * Read PHY status to determine if link is up. If link is up, then
+ * set/determine 10base-T extended distance and polarity correction. Read
+ * PHY port status to determine MDI/MDIx and speed. Based on the speed,
+ * determine on the cable length, local and remote receiver.
+ **/
+s32 e1000_get_phy_info_82577(struct e1000_hw *hw)
+{
+ struct e1000_phy_info *phy = &hw->phy;
+ s32 ret_val;
+ u16 data;
+ bool link;
+
+ ret_val = e1000e_phy_has_link_generic(hw, 1, 0, &link);
+ if (ret_val)
+ return ret_val;
+
+ if (!link) {
+ e_dbg("Phy info is only valid if link is up\n");
+ return -E1000_ERR_CONFIG;
+ }
+
+ phy->polarity_correction = true;
+
+ ret_val = e1000_check_polarity_82577(hw);
+ if (ret_val)
+ return ret_val;
+
+ ret_val = e1e_rphy(hw, I82577_PHY_STATUS_2, &data);
+ if (ret_val)
+ return ret_val;
+
+ phy->is_mdix = !!(data & I82577_PHY_STATUS2_MDIX);
+
+ if ((data & I82577_PHY_STATUS2_SPEED_MASK) ==
+ I82577_PHY_STATUS2_SPEED_1000MBPS) {
+ ret_val = hw->phy.ops.get_cable_length(hw);
+ if (ret_val)
+ return ret_val;
+
+ ret_val = e1e_rphy(hw, MII_STAT1000, &data);
+ if (ret_val)
+ return ret_val;
+
+ phy->local_rx = (data & LPA_1000LOCALRXOK)
+ ? e1000_1000t_rx_status_ok : e1000_1000t_rx_status_not_ok;
+
+ phy->remote_rx = (data & LPA_1000REMRXOK)
+ ? e1000_1000t_rx_status_ok : e1000_1000t_rx_status_not_ok;
+ } else {
+ phy->cable_length = E1000_CABLE_LENGTH_UNDEFINED;
+ phy->local_rx = e1000_1000t_rx_status_undefined;
+ phy->remote_rx = e1000_1000t_rx_status_undefined;
+ }
+
+ return 0;
+}
+
+/**
+ * e1000_get_cable_length_82577 - Determine cable length for 82577 PHY
+ * @hw: pointer to the HW structure
+ *
+ * Reads the diagnostic status register and verifies result is valid before
+ * placing it in the phy_cable_length field.
+ **/
+s32 e1000_get_cable_length_82577(struct e1000_hw *hw)
+{
+ struct e1000_phy_info *phy = &hw->phy;
+ s32 ret_val;
+ u16 phy_data, length;
+
+ ret_val = e1e_rphy(hw, I82577_PHY_DIAG_STATUS, &phy_data);
+ if (ret_val)
+ return ret_val;
+
+ length = ((phy_data & I82577_DSTATUS_CABLE_LENGTH) >>
+ I82577_DSTATUS_CABLE_LENGTH_SHIFT);
+
+ if (length == E1000_CABLE_LENGTH_UNDEFINED)
+ return -E1000_ERR_PHY;
+
+ phy->cable_length = length;
+
+ return 0;
+}
diff --git a/src/phy.h b/src/phy.h
new file mode 100644
index 0000000..4e984ae
--- /dev/null
+++ b/src/phy.h
@@ -0,0 +1,223 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/* Copyright(c) 1999 - 2020 Intel Corporation. */
+
+#ifndef _E1000E_PHY_H_
+#define _E1000E_PHY_H_
+
+s32 e1000e_check_downshift(struct e1000_hw *hw);
+s32 e1000_check_polarity_m88(struct e1000_hw *hw);
+s32 e1000_check_polarity_igp(struct e1000_hw *hw);
+s32 e1000_check_polarity_ife(struct e1000_hw *hw);
+s32 e1000e_check_reset_block_generic(struct e1000_hw *hw);
+s32 e1000e_copper_link_setup_igp(struct e1000_hw *hw);
+s32 e1000e_copper_link_setup_m88(struct e1000_hw *hw);
+s32 e1000e_phy_force_speed_duplex_igp(struct e1000_hw *hw);
+s32 e1000e_phy_force_speed_duplex_m88(struct e1000_hw *hw);
+s32 e1000_phy_force_speed_duplex_ife(struct e1000_hw *hw);
+s32 e1000e_get_cable_length_m88(struct e1000_hw *hw);
+s32 e1000e_get_cable_length_igp_2(struct e1000_hw *hw);
+s32 e1000e_get_cfg_done_generic(struct e1000_hw *hw);
+s32 e1000e_get_phy_id(struct e1000_hw *hw);
+s32 e1000e_get_phy_info_igp(struct e1000_hw *hw);
+s32 e1000e_get_phy_info_m88(struct e1000_hw *hw);
+s32 e1000_get_phy_info_ife(struct e1000_hw *hw);
+s32 e1000e_phy_sw_reset(struct e1000_hw *hw);
+void e1000e_phy_force_speed_duplex_setup(struct e1000_hw *hw, u16 *phy_ctrl);
+s32 e1000e_phy_hw_reset_generic(struct e1000_hw *hw);
+s32 e1000e_phy_reset_dsp(struct e1000_hw *hw);
+s32 e1000e_read_kmrn_reg(struct e1000_hw *hw, u32 offset, u16 *data);
+s32 e1000e_read_kmrn_reg_locked(struct e1000_hw *hw, u32 offset, u16 *data);
+s32 e1000_set_page_igp(struct e1000_hw *hw, u16 page);
+s32 e1000e_read_phy_reg_igp(struct e1000_hw *hw, u32 offset, u16 *data);
+s32 e1000e_read_phy_reg_igp_locked(struct e1000_hw *hw, u32 offset, u16 *data);
+s32 e1000e_read_phy_reg_m88(struct e1000_hw *hw, u32 offset, u16 *data);
+s32 e1000e_set_d3_lplu_state(struct e1000_hw *hw, bool active);
+s32 e1000e_setup_copper_link(struct e1000_hw *hw);
+s32 e1000e_write_kmrn_reg(struct e1000_hw *hw, u32 offset, u16 data);
+s32 e1000e_write_kmrn_reg_locked(struct e1000_hw *hw, u32 offset, u16 data);
+s32 e1000e_write_phy_reg_igp(struct e1000_hw *hw, u32 offset, u16 data);
+s32 e1000e_write_phy_reg_igp_locked(struct e1000_hw *hw, u32 offset, u16 data);
+s32 e1000e_write_phy_reg_m88(struct e1000_hw *hw, u32 offset, u16 data);
+s32 e1000e_phy_has_link_generic(struct e1000_hw *hw, u32 iterations,
+ u32 usec_interval, bool *success);
+s32 e1000e_phy_init_script_igp3(struct e1000_hw *hw);
+enum e1000_phy_type e1000e_get_phy_type_from_id(u32 phy_id);
+s32 e1000e_determine_phy_address(struct e1000_hw *hw);
+s32 e1000e_write_phy_reg_bm(struct e1000_hw *hw, u32 offset, u16 data);
+s32 e1000e_read_phy_reg_bm(struct e1000_hw *hw, u32 offset, u16 *data);
+s32 e1000_enable_phy_wakeup_reg_access_bm(struct e1000_hw *hw, u16 *phy_reg);
+s32 e1000_disable_phy_wakeup_reg_access_bm(struct e1000_hw *hw, u16 *phy_reg);
+s32 e1000e_read_phy_reg_bm2(struct e1000_hw *hw, u32 offset, u16 *data);
+s32 e1000e_write_phy_reg_bm2(struct e1000_hw *hw, u32 offset, u16 data);
+void e1000_power_up_phy_copper(struct e1000_hw *hw);
+void e1000_power_down_phy_copper(struct e1000_hw *hw);
+s32 e1000e_read_phy_reg_mdic(struct e1000_hw *hw, u32 offset, u16 *data);
+s32 e1000e_write_phy_reg_mdic(struct e1000_hw *hw, u32 offset, u16 data);
+s32 e1000_read_phy_reg_hv(struct e1000_hw *hw, u32 offset, u16 *data);
+s32 e1000_read_phy_reg_hv_locked(struct e1000_hw *hw, u32 offset, u16 *data);
+s32 e1000_read_phy_reg_page_hv(struct e1000_hw *hw, u32 offset, u16 *data);
+s32 e1000_write_phy_reg_hv(struct e1000_hw *hw, u32 offset, u16 data);
+s32 e1000_write_phy_reg_hv_locked(struct e1000_hw *hw, u32 offset, u16 data);
+s32 e1000_write_phy_reg_page_hv(struct e1000_hw *hw, u32 offset, u16 data);
+s32 e1000_link_stall_workaround_hv(struct e1000_hw *hw);
+s32 e1000_copper_link_setup_82577(struct e1000_hw *hw);
+s32 e1000_check_polarity_82577(struct e1000_hw *hw);
+s32 e1000_get_phy_info_82577(struct e1000_hw *hw);
+s32 e1000_phy_force_speed_duplex_82577(struct e1000_hw *hw);
+s32 e1000_get_cable_length_82577(struct e1000_hw *hw);
+
+#define E1000_MAX_PHY_ADDR 8
+
+/* IGP01E1000 Specific Registers */
+#define IGP01E1000_PHY_PORT_CONFIG 0x10 /* Port Config */
+#define IGP01E1000_PHY_PORT_STATUS 0x11 /* Status */
+#define IGP01E1000_PHY_PORT_CTRL 0x12 /* Control */
+#define IGP01E1000_PHY_LINK_HEALTH 0x13 /* PHY Link Health */
+#define IGP02E1000_PHY_POWER_MGMT 0x19 /* Power Management */
+#define IGP01E1000_PHY_PAGE_SELECT 0x1F /* Page Select */
+#define BM_PHY_PAGE_SELECT 22 /* Page Select for BM */
+#define IGP_PAGE_SHIFT 5
+#define PHY_REG_MASK 0x1F
+/* BM/HV Specific Registers */
+#define BM_PORT_CTRL_PAGE 769
+#define BM_WUC_PAGE 800
+#define BM_WUC_ADDRESS_OPCODE 0x11
+#define BM_WUC_DATA_OPCODE 0x12
+#define BM_WUC_ENABLE_PAGE BM_PORT_CTRL_PAGE
+#define BM_WUC_ENABLE_REG 17
+#define BM_WUC_ENABLE_BIT (1 << 2)
+#define BM_WUC_HOST_WU_BIT (1 << 4)
+#define BM_WUC_ME_WU_BIT (1 << 5)
+
+#define PHY_UPPER_SHIFT 21
+#define BM_PHY_REG(page, reg) \
+ (((reg) & MAX_PHY_REG_ADDRESS) |\
+ (((page) & 0xFFFF) << PHY_PAGE_SHIFT) |\
+ (((reg) & ~MAX_PHY_REG_ADDRESS) << (PHY_UPPER_SHIFT - PHY_PAGE_SHIFT)))
+#define BM_PHY_REG_PAGE(offset) \
+ ((u16)(((offset) >> PHY_PAGE_SHIFT) & 0xFFFF))
+#define BM_PHY_REG_NUM(offset) \
+ ((u16)(((offset) & MAX_PHY_REG_ADDRESS) |\
+ (((offset) >> (PHY_UPPER_SHIFT - PHY_PAGE_SHIFT)) &\
+ ~MAX_PHY_REG_ADDRESS)))
+
+#define HV_INTC_FC_PAGE_START 768
+#define I82578_ADDR_REG 29
+#define I82577_ADDR_REG 16
+#define I82577_CFG_REG 22
+#define I82577_CFG_ASSERT_CRS_ON_TX (1 << 15)
+#define I82577_CFG_ENABLE_DOWNSHIFT (3 << 10) /* auto downshift */
+#define I82577_CTRL_REG 23
+
+/* 82577 specific PHY registers */
+#define I82577_PHY_CTRL_2 18
+#define I82577_PHY_LBK_CTRL 19
+#define I82577_PHY_STATUS_2 26
+#define I82577_PHY_DIAG_STATUS 31
+
+/* I82577 PHY Status 2 */
+#define I82577_PHY_STATUS2_REV_POLARITY 0x0400
+#define I82577_PHY_STATUS2_MDIX 0x0800
+#define I82577_PHY_STATUS2_SPEED_MASK 0x0300
+#define I82577_PHY_STATUS2_SPEED_1000MBPS 0x0200
+
+/* I82577 PHY Control 2 */
+#define I82577_PHY_CTRL2_MANUAL_MDIX 0x0200
+#define I82577_PHY_CTRL2_AUTO_MDI_MDIX 0x0400
+#define I82577_PHY_CTRL2_MDIX_CFG_MASK 0x0600
+
+/* I82577 PHY Diagnostics Status */
+#define I82577_DSTATUS_CABLE_LENGTH 0x03FC
+#define I82577_DSTATUS_CABLE_LENGTH_SHIFT 2
+
+#define E1000_MPHY_DIS_ACCESS 0x80000000 /* disable_access bit */
+#define E1000_MPHY_ENA_ACCESS 0x40000000 /* enable_access bit */
+#define E1000_MPHY_BUSY 0x00010000 /* busy bit */
+#define E1000_MPHY_ADDRESS_FNC_OVERRIDE 0x20000000 /* fnc_override bit */
+#define E1000_MPHY_ADDRESS_MASK 0x0000FFFF /* address mask */
+
+/* BM PHY Copper Specific Control 1 */
+#define BM_CS_CTRL1 16
+
+/* BM PHY Copper Specific Status */
+#define BM_CS_STATUS 17
+#define BM_CS_STATUS_LINK_UP 0x0400
+#define BM_CS_STATUS_RESOLVED 0x0800
+#define BM_CS_STATUS_SPEED_MASK 0xC000
+#define BM_CS_STATUS_SPEED_1000 0x8000
+
+/* 82577 Mobile Phy Status Register */
+#define HV_M_STATUS 26
+#define HV_M_STATUS_AUTONEG_COMPLETE 0x1000
+#define HV_M_STATUS_SPEED_MASK 0x0300
+#define HV_M_STATUS_SPEED_1000 0x0200
+#define HV_M_STATUS_SPEED_100 0x0100
+#define HV_M_STATUS_LINK_UP 0x0040
+
+#define IGP01E1000_PHY_PCS_INIT_REG 0x00B4
+#define IGP01E1000_PHY_POLARITY_MASK 0x0078
+
+#define IGP01E1000_PSCR_AUTO_MDIX 0x1000
+#define IGP01E1000_PSCR_FORCE_MDI_MDIX 0x2000 /* 0=MDI, 1=MDIX */
+
+#define IGP01E1000_PSCFR_SMART_SPEED 0x0080
+
+#define IGP02E1000_PM_SPD 0x0001 /* Smart Power Down */
+#define IGP02E1000_PM_D0_LPLU 0x0002 /* For D0a states */
+#define IGP02E1000_PM_D3_LPLU 0x0004 /* For all other states */
+
+#define IGP01E1000_PLHR_SS_DOWNGRADE 0x8000
+
+#define IGP01E1000_PSSR_POLARITY_REVERSED 0x0002
+#define IGP01E1000_PSSR_MDIX 0x0800
+#define IGP01E1000_PSSR_SPEED_MASK 0xC000
+#define IGP01E1000_PSSR_SPEED_1000MBPS 0xC000
+
+#define IGP02E1000_PHY_CHANNEL_NUM 4
+#define IGP02E1000_PHY_AGC_A 0x11B1
+#define IGP02E1000_PHY_AGC_B 0x12B1
+#define IGP02E1000_PHY_AGC_C 0x14B1
+#define IGP02E1000_PHY_AGC_D 0x18B1
+
+#define IGP02E1000_AGC_LENGTH_SHIFT 9 /* Course=15:13, Fine=12:9 */
+#define IGP02E1000_AGC_LENGTH_MASK 0x7F
+#define IGP02E1000_AGC_RANGE 15
+
+#define E1000_CABLE_LENGTH_UNDEFINED 0xFF
+
+#define E1000_KMRNCTRLSTA_OFFSET 0x001F0000
+#define E1000_KMRNCTRLSTA_OFFSET_SHIFT 16
+#define E1000_KMRNCTRLSTA_REN 0x00200000
+#define E1000_KMRNCTRLSTA_CTRL_OFFSET 0x1 /* Kumeran Control */
+#define E1000_KMRNCTRLSTA_DIAG_OFFSET 0x3 /* Kumeran Diagnostic */
+#define E1000_KMRNCTRLSTA_TIMEOUTS 0x4 /* Kumeran Timeouts */
+#define E1000_KMRNCTRLSTA_INBAND_PARAM 0x9 /* Kumeran InBand Parameters */
+#define E1000_KMRNCTRLSTA_IBIST_DISABLE 0x0200 /* Kumeran IBIST Disable */
+#define E1000_KMRNCTRLSTA_DIAG_NELPBK 0x1000 /* Nearend Loopback mode */
+#define E1000_KMRNCTRLSTA_K1_CONFIG 0x7
+#define E1000_KMRNCTRLSTA_K1_ENABLE 0x0002 /* enable K1 */
+#define E1000_KMRNCTRLSTA_HD_CTRL 0x10 /* Kumeran HD Control */
+
+#define IFE_PHY_EXTENDED_STATUS_CONTROL 0x10
+#define IFE_PHY_SPECIAL_CONTROL 0x11 /* 100BaseTx PHY Special Ctrl */
+#define IFE_PHY_SPECIAL_CONTROL_LED 0x1B /* PHY Special and LED Ctrl */
+#define IFE_PHY_MDIX_CONTROL 0x1C /* MDI/MDI-X Control */
+
+/* IFE PHY Extended Status Control */
+#define IFE_PESC_POLARITY_REVERSED 0x0100
+
+/* IFE PHY Special Control */
+#define IFE_PSC_AUTO_POLARITY_DISABLE 0x0010
+#define IFE_PSC_FORCE_POLARITY 0x0020
+
+/* IFE PHY Special Control and LED Control */
+#define IFE_PSCL_PROBE_MODE 0x0020
+#define IFE_PSCL_PROBE_LEDS_OFF 0x0006 /* Force LEDs 0 and 2 off */
+#define IFE_PSCL_PROBE_LEDS_ON 0x0007 /* Force LEDs 0 and 2 on */
+
+/* IFE PHY MDIX Control */
+#define IFE_PMC_MDIX_STATUS 0x0020 /* 1=MDI-X, 0=MDI */
+#define IFE_PMC_FORCE_MDIX 0x0040 /* 1=force MDI-X, 0=force MDI */
+#define IFE_PMC_AUTO_MDIX 0x0080 /* 1=enable auto, 0=disable */
+
+#endif
diff --git a/src/ptp.c b/src/ptp.c
new file mode 100644
index 0000000..bfff1fa
--- /dev/null
+++ b/src/ptp.c
@@ -0,0 +1,416 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright(c) 1999 - 2020 Intel Corporation. */
+
+/* PTP 1588 Hardware Clock (PHC)
+ * Derived from PTP Hardware Clock driver for Intel 82576 and 82580 (igb)
+ * Copyright (C) 2011 Richard Cochran <richardcochran@gmail.com>
+ */
+
+#include "e1000.h"
+
+#ifdef CONFIG_PTP_1588_CLOCK
+#include <linux/clocksource.h>
+#include <linux/ktime.h>
+#include <asm/tsc.h>
+#endif
+
+/**
+ * e1000e_phc_adjfreq - adjust the frequency of the hardware clock
+ * @ptp: ptp clock structure
+ * @delta: Desired frequency change in parts per billion
+ *
+ * Adjust the frequency of the PHC cycle counter by the indicated delta from
+ * the base frequency.
+ **/
+static int e1000e_phc_adjfreq(struct ptp_clock_info *ptp, s32 delta)
+{
+ struct e1000_adapter *adapter = container_of(ptp, struct e1000_adapter,
+ ptp_clock_info);
+ struct e1000_hw *hw = &adapter->hw;
+ bool neg_adj = false;
+ unsigned long flags;
+ u64 adjustment;
+ u32 timinca, incvalue;
+ s32 ret_val;
+
+ if ((delta > ptp->max_adj) || (delta <= -1000000000))
+ return -EINVAL;
+
+ if (delta < 0) {
+ neg_adj = true;
+ delta = -delta;
+ }
+
+ /* Get the System Time Register SYSTIM base frequency */
+ ret_val = e1000e_get_base_timinca(adapter, &timinca);
+ if (ret_val)
+ return ret_val;
+
+ spin_lock_irqsave(&adapter->systim_lock, flags);
+
+ incvalue = timinca & E1000_TIMINCA_INCVALUE_MASK;
+
+ adjustment = incvalue;
+ adjustment *= delta;
+ adjustment = div_u64(adjustment, 1000000000);
+
+ incvalue = neg_adj ? (incvalue - adjustment) : (incvalue + adjustment);
+
+ timinca &= ~E1000_TIMINCA_INCVALUE_MASK;
+ timinca |= incvalue;
+
+ ew32(TIMINCA, timinca);
+ adapter->ptp_delta = delta;
+
+ spin_unlock_irqrestore(&adapter->systim_lock, flags);
+
+ return 0;
+}
+
+/**
+ * e1000e_phc_adjtime - Shift the time of the hardware clock
+ * @ptp: ptp clock structure
+ * @delta: Desired change in nanoseconds
+ *
+ * Adjust the timer by resetting the timecounter structure.
+ **/
+static int e1000e_phc_adjtime(struct ptp_clock_info *ptp, s64 delta)
+{
+ struct e1000_adapter *adapter = container_of(ptp, struct e1000_adapter,
+ ptp_clock_info);
+ unsigned long flags;
+
+#ifdef HAVE_INCLUDE_LINUX_TIMECOUNTER_H
+ spin_lock_irqsave(&adapter->systim_lock, flags);
+ timecounter_adjtime(&adapter->tc, delta);
+#else
+ s64 now;
+
+ spin_lock_irqsave(&adapter->systim_lock, flags);
+ now = timecounter_read(&adapter->tc);
+ now += delta;
+ timecounter_init(&adapter->tc, &adapter->cc, now);
+#endif
+ spin_unlock_irqrestore(&adapter->systim_lock, flags);
+
+ return 0;
+}
+
+#ifdef CONFIG_PTP_1588_CLOCK
+#define MAX_HW_WAIT_COUNT (3)
+
+/**
+ * e1000e_phc_get_syncdevicetime - Callback given to timekeeping code reads
+ * system/device registers
+ * @device: current device time
+ * @system: system counter value read synchronously with device time
+ * @ctx: context provided by timekeeping code
+ *
+ * Read device and system (ART) clock simultaneously and return the corrected
+ * clock values in ns.
+ **/
+static int e1000e_phc_get_syncdevicetime(ktime_t * device,
+ struct system_counterval_t *system,
+ void *ctx)
+{
+ struct e1000_adapter *adapter = (struct e1000_adapter *)ctx;
+ struct e1000_hw *hw = &adapter->hw;
+ unsigned long flags;
+ int i;
+ u32 tsync_ctrl;
+ u64 dev_cycles;
+ u64 sys_cycles;
+
+ tsync_ctrl = er32(TSYNCTXCTL);
+ tsync_ctrl |= E1000_TSYNCTXCTL_START_SYNC |
+ E1000_TSYNCTXCTL_MAX_ALLOWED_DLY_MASK;
+ ew32(TSYNCTXCTL, tsync_ctrl);
+ for (i = 0; i < MAX_HW_WAIT_COUNT; ++i) {
+ udelay(1);
+ tsync_ctrl = er32(TSYNCTXCTL);
+ if (tsync_ctrl & E1000_TSYNCTXCTL_SYNC_COMP)
+ break;
+ }
+
+ if (i == MAX_HW_WAIT_COUNT)
+ return -ETIMEDOUT;
+
+ dev_cycles = er32(SYSSTMPH);
+ dev_cycles <<= 32;
+ dev_cycles |= er32(SYSSTMPL);
+ spin_lock_irqsave(&adapter->systim_lock, flags);
+ *device = ns_to_ktime(timecounter_cyc2time(&adapter->tc, dev_cycles));
+ spin_unlock_irqrestore(&adapter->systim_lock, flags);
+
+ sys_cycles = er32(PLTSTMPH);
+ sys_cycles <<= 32;
+ sys_cycles |= er32(PLTSTMPL);
+ *system = convert_art_to_tsc(sys_cycles);
+
+ return 0;
+}
+
+/**
+ * e1000e_phc_getsynctime - Reads the current system/device cross timestamp
+ * @ptp: ptp clock structure
+ * @xtstamp: structure containing timestamp
+ *
+ * Read device and system (ART) clock simultaneously and return the scaled
+ * clock values in ns.
+ **/
+static int e1000e_phc_getcrosststamp(struct ptp_clock_info *ptp,
+ struct system_device_crosststamp *xtstamp)
+{
+ struct e1000_adapter *adapter = container_of(ptp, struct e1000_adapter,
+ ptp_clock_info);
+
+ return get_device_system_crosststamp(e1000e_phc_get_syncdevicetime,
+ adapter, NULL, xtstamp);
+}
+#endif /*CONFIG_PTP_1588_CLOCK */
+
+/**
+ * e1000e_phc_gettimex - Reads the current time from the hardware clock and
+ * system clock
+ * @ptp: ptp clock structure
+ * @ts: timespec structure to hold the current PHC time
+ * @sts: structure to hold the current system time
+ *
+ * Read the timecounter and return the correct value in ns after converting
+ * it into a struct timespec.
+ **/
+static int e1000e_phc_gettimex(struct ptp_clock_info *ptp,
+ struct timespec64 *ts,
+ struct ptp_system_timestamp *sts)
+{
+ struct e1000_adapter *adapter = container_of(ptp, struct e1000_adapter,
+ ptp_clock_info);
+ unsigned long flags;
+ u64 cycles, ns;
+
+ spin_lock_irqsave(&adapter->systim_lock, flags);
+
+ /*NOTE: Non-monotonic SYSTIM readings may be returned */
+ cycles = e1000e_read_systim(adapter, sts);
+ ns = timecounter_cyc2time(&adapter->tc, cycles);
+
+ spin_unlock_irqrestore(&adapter->systim_lock, flags);
+
+ *ts = ns_to_timespec64(ns);
+
+ return 0;
+}
+
+/**
+ * e1000e_phc_gettime - Reads the current time from the hardware clock
+ * @ptp: ptp clock structure
+ * @ts: timespec structure to hold the current PHC time
+ *
+ * Read the timecounter and return the correct value in ns after converting
+ * it into a struct timespec.
+ **/
+static int __maybe_unused e1000e_phc_gettime(struct ptp_clock_info *ptp,
+ struct timespec64 *ts)
+{
+ return e1000e_phc_gettimex(ptp, ts, NULL);
+}
+
+/**
+ * e1000e_phc_settime - Set the current time on the hardware clock
+ * @ptp: ptp clock structure
+ * @ts: timespec containing the new time for the cycle counter
+ *
+ * Reset the timecounter to use a new base value instead of the kernel
+ * wall timer value.
+ **/
+static int e1000e_phc_settime(struct ptp_clock_info *ptp,
+ const struct timespec64 *ts)
+{
+ struct e1000_adapter *adapter = container_of(ptp, struct e1000_adapter,
+ ptp_clock_info);
+ unsigned long flags;
+ u64 ns;
+
+ ns = timespec64_to_ns(ts);
+
+ /* reset the timecounter */
+ spin_lock_irqsave(&adapter->systim_lock, flags);
+ timecounter_init(&adapter->tc, &adapter->cc, ns);
+ spin_unlock_irqrestore(&adapter->systim_lock, flags);
+
+ return 0;
+}
+
+#ifndef HAVE_PTP_CLOCK_INFO_GETTIME64
+static int e1000e_phc_gettime32(struct ptp_clock_info *ptp, struct timespec *ts)
+{
+ struct timespec64 ts64;
+ struct ptp_system_timestamp sts;
+ int err;
+
+ err = e1000e_phc_gettimex(ptp, &ts64, &sts);
+ if (err)
+ return err;
+
+ *ts = timespec64_to_timespec(ts64);
+
+ return 0;
+}
+
+static int e1000e_phc_settime32(struct ptp_clock_info *ptp,
+ const struct timespec *ts)
+{
+ struct timespec64 ts64;
+
+ ts64 = timespec_to_timespec64(*ts);
+ return e1000e_phc_settime(ptp, &ts64);
+}
+#endif
+
+/**
+ * e1000e_phc_enable - enable or disable an ancillary feature
+ * @ptp: ptp clock structure
+ * @request: Desired resource to enable or disable
+ * @on: Caller passes one to enable or zero to disable
+ *
+ * Enable (or disable) ancillary features of the PHC subsystem.
+ * Currently, no ancillary features are supported.
+ **/
+static int e1000e_phc_enable(struct ptp_clock_info __always_unused *ptp,
+ struct ptp_clock_request __always_unused *request,
+ int __always_unused on)
+{
+ return -EOPNOTSUPP;
+}
+
+static void e1000e_systim_overflow_work(struct work_struct *work)
+{
+ struct e1000_adapter *adapter = container_of(work, struct e1000_adapter,
+ systim_overflow_work.work);
+ struct e1000_hw *hw = &adapter->hw;
+ struct timespec64 ts;
+ u64 ns;
+
+ /* Update the timecounter */
+ ns = timecounter_read(&adapter->tc);
+
+ ts = ns_to_timespec64(ns);
+ e_dbg("SYSTIM overflow check at %lld.%09lu\n",
+ (long long)ts.tv_sec, ts.tv_nsec);
+
+ schedule_delayed_work(&adapter->systim_overflow_work,
+ E1000_SYSTIM_OVERFLOW_PERIOD);
+}
+
+static const struct ptp_clock_info e1000e_ptp_clock_info = {
+ .owner = THIS_MODULE,
+ .n_alarm = 0,
+ .n_ext_ts = 0,
+ .n_per_out = 0,
+#ifdef HAVE_PTP_1588_CLOCK_PINS
+ .n_pins = 0,
+#endif
+ .pps = 0,
+ .adjfreq = e1000e_phc_adjfreq,
+ .adjtime = e1000e_phc_adjtime,
+#ifdef HAVE_PTP_CLOCK_INFO_GETTIME64
+#ifdef HAVE_PTP_SYS_OFFSET_EXTENDED_IOCTL
+ .gettimex64 = e1000e_phc_gettimex,
+#else
+ .gettime64 = e1000e_phc_gettime,
+#endif /* HAVE PTP_SYS_OFFSET_EXTENDED_IOCTL */
+ .settime64 = e1000e_phc_settime,
+#else
+ .gettime = e1000e_phc_gettime32,
+ .settime = e1000e_phc_settime32,
+#endif /* HAVE_PTP_CLOCK_INFO_GETTIME64 */
+ .enable = e1000e_phc_enable,
+};
+
+/**
+ * e1000e_ptp_init - initialize PTP for devices which support it
+ * @adapter: board private structure
+ *
+ * This function performs the required steps for enabling PTP support.
+ * If PTP support has already been loaded it simply calls the cyclecounter
+ * init routine and exits.
+ **/
+void e1000e_ptp_init(struct e1000_adapter *adapter)
+{
+ struct e1000_hw *hw = &adapter->hw;
+
+ adapter->ptp_clock = NULL;
+
+ if (!(adapter->flags & FLAG_HAS_HW_TIMESTAMP))
+ return;
+
+ adapter->ptp_clock_info = e1000e_ptp_clock_info;
+
+ snprintf(adapter->ptp_clock_info.name,
+ sizeof(adapter->ptp_clock_info.name), "%pm",
+ adapter->netdev->perm_addr);
+
+ switch (hw->mac.type) {
+ case e1000_pch2lan:
+ case e1000_pch_lpt:
+ case e1000_pch_spt:
+ case e1000_pch_cnp:
+ /* fall-through */
+ case e1000_pch_tgp:
+ case e1000_pch_adp:
+ if ((hw->mac.type < e1000_pch_lpt) ||
+ (er32(TSYNCRXCTL) & E1000_TSYNCRXCTL_SYSCFI)) {
+ adapter->ptp_clock_info.max_adj = 24000000 - 1;
+ break;
+ }
+ /* fall-through */
+ case e1000_82574:
+ case e1000_82583:
+ adapter->ptp_clock_info.max_adj = 600000000 - 1;
+ break;
+ default:
+ break;
+ }
+
+#ifdef CONFIG_PTP_1588_CLOCK
+ /* CPU must have ART and GBe must be from Sunrise Point or greater */
+ if (hw->mac.type >= e1000_pch_spt && boot_cpu_has(X86_FEATURE_ART))
+ adapter->ptp_clock_info.getcrosststamp =
+ e1000e_phc_getcrosststamp;
+#endif /*CONFIG_PTP_1588_CLOCK */
+
+ INIT_DELAYED_WORK(&adapter->systim_overflow_work,
+ e1000e_systim_overflow_work);
+
+ schedule_delayed_work(&adapter->systim_overflow_work,
+ E1000_SYSTIM_OVERFLOW_PERIOD);
+
+ adapter->ptp_clock = ptp_clock_register(&adapter->ptp_clock_info,
+ pci_dev_to_dev(adapter->pdev));
+ if (IS_ERR(adapter->ptp_clock)) {
+ adapter->ptp_clock = NULL;
+ e_err("ptp_clock_register failed\n");
+ } else if (adapter->ptp_clock) {
+ e_info("registered PHC clock\n");
+ }
+}
+
+/**
+ * e1000e_ptp_remove - disable PTP device and stop the overflow check
+ * @adapter: board private structure
+ *
+ * Stop the PTP support, and cancel the delayed work.
+ **/
+void e1000e_ptp_remove(struct e1000_adapter *adapter)
+{
+ if (!(adapter->flags & FLAG_HAS_HW_TIMESTAMP))
+ return;
+
+ cancel_delayed_work_sync(&adapter->systim_overflow_work);
+
+ if (adapter->ptp_clock) {
+ ptp_clock_unregister(adapter->ptp_clock);
+ adapter->ptp_clock = NULL;
+ e_info("removed PHC\n");
+ }
+}
diff --git a/src/regs.h b/src/regs.h
new file mode 100644
index 0000000..b201bee
--- /dev/null
+++ b/src/regs.h
@@ -0,0 +1,258 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/* Copyright(c) 1999 - 2020 Intel Corporation. */
+
+#ifndef _E1000E_REGS_H_
+#define _E1000E_REGS_H_
+
+/* General Register Descriptions */
+#define E1000_CTRL 0x00000 /* Device Control - RW */
+#define E1000_STATUS 0x00008 /* Device Status - RO */
+#define E1000_EECD 0x00010 /* EEPROM/Flash Control - RW */
+#define E1000_EERD 0x00014 /* EEPROM Read - RW */
+#define E1000_CTRL_EXT 0x00018 /* Extended Device Control - RW */
+#define E1000_FLA 0x0001C /* Flash Access - RW */
+#define E1000_MDIC 0x00020 /* MDI Control - RW */
+#define E1000_SCTL 0x00024 /* SerDes Control - RW */
+#define E1000_FCAL 0x00028 /* Flow Control Address Low - RW */
+#define E1000_FCAH 0x0002C /* Flow Control Address High -RW */
+#define E1000_FEXT 0x0002C /* Future Extended - RW */
+#define E1000_FEXTNVM 0x00028 /* Future Extended NVM - RW */
+#define E1000_FEXTNVM3 0x0003C /* Future Extended NVM 3 - RW */
+#define E1000_FEXTNVM4 0x00024 /* Future Extended NVM 4 - RW */
+#define E1000_FEXTNVM5 0x00014 /* Future Extended NVM 5 - RW */
+#define E1000_FEXTNVM6 0x00010 /* Future Extended NVM 6 - RW */
+#define E1000_FEXTNVM7 0x000E4 /* Future Extended NVM 7 - RW */
+#define E1000_FEXTNVM8 0x5BB0 /* Future Extended NVM 8 - RW */
+#define E1000_FEXTNVM9 0x5BB4 /* Future Extended NVM 9 - RW */
+#define E1000_FEXTNVM11 0x5BBC /* Future Extended NVM 11 - RW */
+#define E1000_FEXTNVM12 0x5BC0 /* Future Extended NVM 12 - RW */
+#define E1000_PCIEANACFG 0x00F18 /* PCIE Analog Config */
+#define E1000_DPGFR 0x00FAC /* Dynamic Power Gate Force Control Register */
+#define E1000_FCT 0x00030 /* Flow Control Type - RW */
+#define E1000_VET 0x00038 /* VLAN Ether Type - RW */
+#define E1000_ICR 0x000C0 /* Interrupt Cause Read - R/clr */
+#define E1000_ITR 0x000C4 /* Interrupt Throttling Rate - RW */
+#define E1000_ICS 0x000C8 /* Interrupt Cause Set - WO */
+#define E1000_IMS 0x000D0 /* Interrupt Mask Set - RW */
+#define E1000_IMC 0x000D8 /* Interrupt Mask Clear - WO */
+#define E1000_IAM 0x000E0 /* Interrupt Acknowledge Auto Mask */
+#define E1000_IVAR 0x000E4 /* Interrupt Vector Allocation Register - RW */
+#define E1000_SVCR 0x000F0
+#define E1000_SVT 0x000F4
+#define E1000_LPIC 0x000FC /* Low Power IDLE control */
+#define E1000_RCTL 0x00100 /* Rx Control - RW */
+#define E1000_FCTTV 0x00170 /* Flow Control Transmit Timer Value - RW */
+#define E1000_TXCW 0x00178 /* Tx Configuration Word - RW */
+#define E1000_RXCW 0x00180 /* Rx Configuration Word - RO */
+#define E1000_PBA_ECC 0x01100 /* PBA ECC Register */
+#define E1000_TCTL 0x00400 /* Tx Control - RW */
+#define E1000_TCTL_EXT 0x00404 /* Extended Tx Control - RW */
+#define E1000_TIPG 0x00410 /* Tx Inter-packet gap -RW */
+#define E1000_AIT 0x00458 /* Adaptive Interframe Spacing Throttle - RW */
+#define E1000_LEDCTL 0x00E00 /* LED Control - RW */
+#define E1000_LEDMUX 0x08130 /* LED MUX Control */
+#define E1000_EXTCNF_CTRL 0x00F00 /* Extended Configuration Control */
+#define E1000_EXTCNF_SIZE 0x00F08 /* Extended Configuration Size */
+#define E1000_PHY_CTRL 0x00F10 /* PHY Control Register in CSR */
+#define E1000_POEMB E1000_PHY_CTRL /* PHY OEM Bits */
+#define E1000_PBA 0x01000 /* Packet Buffer Allocation - RW */
+#define E1000_PBS 0x01008 /* Packet Buffer Size */
+#define E1000_PBECCSTS 0x0100C /* Packet Buffer ECC Status - RW */
+#define E1000_IOSFPC 0x00F28 /* TX corrupted data */
+#define E1000_EEMNGCTL 0x01010 /* MNG EEprom Control */
+#define E1000_EEWR 0x0102C /* EEPROM Write Register - RW */
+#define E1000_FLOP 0x0103C /* FLASH Opcode Register */
+#define E1000_ERT 0x02008 /* Early Rx Threshold - RW */
+#define E1000_FCRTL 0x02160 /* Flow Control Receive Threshold Low - RW */
+#define E1000_FCRTH 0x02168 /* Flow Control Receive Threshold High - RW */
+#define E1000_PSRCTL 0x02170 /* Packet Split Receive Control - RW */
+#define E1000_RDFH 0x02410 /* Rx Data FIFO Head - RW */
+#define E1000_RDFT 0x02418 /* Rx Data FIFO Tail - RW */
+#define E1000_RDFHS 0x02420 /* Rx Data FIFO Head Saved - RW */
+#define E1000_RDFTS 0x02428 /* Rx Data FIFO Tail Saved - RW */
+#define E1000_RDFPC 0x02430 /* Rx Data FIFO Packet Count - RW */
+/* Split and Replication Rx Control - RW */
+#define E1000_RDTR 0x02820 /* Rx Delay Timer - RW */
+#define E1000_RADV 0x0282C /* Rx Interrupt Absolute Delay Timer - RW */
+#define E1000_EEC_REG 0x12010
+
+#define E1000_SHADOWINF 0x12068
+#define E1000_FLFWUPDATE 0x12108
+
+#define E1000_MMDAC 13 /* MMD Access Control */
+#define E1000_MMDAAD 14 /* MMD Access Address/Data */
+/* Convenience macros
+ *
+ * Note: "_n" is the queue number of the register to be written to.
+ *
+ * Example usage:
+ * E1000_RDBAL_REG(current_rx_queue)
+ */
+#define E1000_RDBAL(_n) ((_n) < 4 ? (0x02800 + ((_n) * 0x100)) : \
+ (0x0C000 + ((_n) * 0x40)))
+#define E1000_RDBAH(_n) ((_n) < 4 ? (0x02804 + ((_n) * 0x100)) : \
+ (0x0C004 + ((_n) * 0x40)))
+#define E1000_RDLEN(_n) ((_n) < 4 ? (0x02808 + ((_n) * 0x100)) : \
+ (0x0C008 + ((_n) * 0x40)))
+#define E1000_RDH(_n) ((_n) < 4 ? (0x02810 + ((_n) * 0x100)) : \
+ (0x0C010 + ((_n) * 0x40)))
+#define E1000_RDT(_n) ((_n) < 4 ? (0x02818 + ((_n) * 0x100)) : \
+ (0x0C018 + ((_n) * 0x40)))
+#define E1000_RXDCTL(_n) ((_n) < 4 ? (0x02828 + ((_n) * 0x100)) : \
+ (0x0C028 + ((_n) * 0x40)))
+#define E1000_TDBAL(_n) ((_n) < 4 ? (0x03800 + ((_n) * 0x100)) : \
+ (0x0E000 + ((_n) * 0x40)))
+#define E1000_TDBAH(_n) ((_n) < 4 ? (0x03804 + ((_n) * 0x100)) : \
+ (0x0E004 + ((_n) * 0x40)))
+#define E1000_TDLEN(_n) ((_n) < 4 ? (0x03808 + ((_n) * 0x100)) : \
+ (0x0E008 + ((_n) * 0x40)))
+#define E1000_TDH(_n) ((_n) < 4 ? (0x03810 + ((_n) * 0x100)) : \
+ (0x0E010 + ((_n) * 0x40)))
+#define E1000_TDT(_n) ((_n) < 4 ? (0x03818 + ((_n) * 0x100)) : \
+ (0x0E018 + ((_n) * 0x40)))
+#define E1000_TXDCTL(_n) ((_n) < 4 ? (0x03828 + ((_n) * 0x100)) : \
+ (0x0E028 + ((_n) * 0x40)))
+#define E1000_TARC(_n) (0x03840 + ((_n) * 0x100))
+#define E1000_KABGTXD 0x03004 /* AFE Band Gap Transmit Ref Data */
+#define E1000_RAL(_i) (((_i) <= 15) ? (0x05400 + ((_i) * 8)) : \
+ (0x054E0 + ((_i - 16) * 8)))
+#define E1000_RAH(_i) (((_i) <= 15) ? (0x05404 + ((_i) * 8)) : \
+ (0x054E4 + ((_i - 16) * 8)))
+
+#define E1000_SHRAL(_i) (0x05438 + ((_i) * 8))
+#define E1000_SHRAH(_i) (0x0543C + ((_i) * 8))
+#define E1000_TDFH 0x03410 /* Tx Data FIFO Head - RW */
+#define E1000_TDFT 0x03418 /* Tx Data FIFO Tail - RW */
+#define E1000_TDFHS 0x03420 /* Tx Data FIFO Head Saved - RW */
+#define E1000_TDFTS 0x03428 /* Tx Data FIFO Tail Saved - RW */
+#define E1000_TDFPC 0x03430 /* Tx Data FIFO Packet Count - RW */
+#define E1000_TIDV 0x03820 /* Tx Interrupt Delay Value - RW */
+#define E1000_TADV 0x0382C /* Tx Interrupt Absolute Delay Val - RW */
+/* Statistics Register Descriptions */
+#define E1000_CRCERRS 0x04000 /* CRC Error Count - R/clr */
+#define E1000_ALGNERRC 0x04004 /* Alignment Error Count - R/clr */
+#define E1000_SYMERRS 0x04008 /* Symbol Error Count - R/clr */
+#define E1000_RXERRC 0x0400C /* Receive Error Count - R/clr */
+#define E1000_MPC 0x04010 /* Missed Packet Count - R/clr */
+#define E1000_SCC 0x04014 /* Single Collision Count - R/clr */
+#define E1000_ECOL 0x04018 /* Excessive Collision Count - R/clr */
+#define E1000_MCC 0x0401C /* Multiple Collision Count - R/clr */
+#define E1000_LATECOL 0x04020 /* Late Collision Count - R/clr */
+#define E1000_COLC 0x04028 /* Collision Count - R/clr */
+#define E1000_DC 0x04030 /* Defer Count - R/clr */
+#define E1000_TNCRS 0x04034 /* Tx-No CRS - R/clr */
+#define E1000_SEC 0x04038 /* Sequence Error Count - R/clr */
+#define E1000_CEXTERR 0x0403C /* Carrier Extension Error Count - R/clr */
+#define E1000_RLEC 0x04040 /* Receive Length Error Count - R/clr */
+#define E1000_XONRXC 0x04048 /* XON Rx Count - R/clr */
+#define E1000_XONTXC 0x0404C /* XON Tx Count - R/clr */
+#define E1000_XOFFRXC 0x04050 /* XOFF Rx Count - R/clr */
+#define E1000_XOFFTXC 0x04054 /* XOFF Tx Count - R/clr */
+#define E1000_FCRUC 0x04058 /* Flow Control Rx Unsupported Count- R/clr */
+#define E1000_PRC64 0x0405C /* Packets Rx (64 bytes) - R/clr */
+#define E1000_PRC127 0x04060 /* Packets Rx (65-127 bytes) - R/clr */
+#define E1000_PRC255 0x04064 /* Packets Rx (128-255 bytes) - R/clr */
+#define E1000_PRC511 0x04068 /* Packets Rx (255-511 bytes) - R/clr */
+#define E1000_PRC1023 0x0406C /* Packets Rx (512-1023 bytes) - R/clr */
+#define E1000_PRC1522 0x04070 /* Packets Rx (1024-1522 bytes) - R/clr */
+#define E1000_GPRC 0x04074 /* Good Packets Rx Count - R/clr */
+#define E1000_BPRC 0x04078 /* Broadcast Packets Rx Count - R/clr */
+#define E1000_MPRC 0x0407C /* Multicast Packets Rx Count - R/clr */
+#define E1000_GPTC 0x04080 /* Good Packets Tx Count - R/clr */
+#define E1000_GORCL 0x04088 /* Good Octets Rx Count Low - R/clr */
+#define E1000_GORCH 0x0408C /* Good Octets Rx Count High - R/clr */
+#define E1000_GOTCL 0x04090 /* Good Octets Tx Count Low - R/clr */
+#define E1000_GOTCH 0x04094 /* Good Octets Tx Count High - R/clr */
+#define E1000_RNBC 0x040A0 /* Rx No Buffers Count - R/clr */
+#define E1000_RUC 0x040A4 /* Rx Undersize Count - R/clr */
+#define E1000_RFC 0x040A8 /* Rx Fragment Count - R/clr */
+#define E1000_ROC 0x040AC /* Rx Oversize Count - R/clr */
+#define E1000_RJC 0x040B0 /* Rx Jabber Count - R/clr */
+#define E1000_MGTPRC 0x040B4 /* Management Packets Rx Count - R/clr */
+#define E1000_MGTPDC 0x040B8 /* Management Packets Dropped Count - R/clr */
+#define E1000_MGTPTC 0x040BC /* Management Packets Tx Count - R/clr */
+#define E1000_TORL 0x040C0 /* Total Octets Rx Low - R/clr */
+#define E1000_TORH 0x040C4 /* Total Octets Rx High - R/clr */
+#define E1000_TOTL 0x040C8 /* Total Octets Tx Low - R/clr */
+#define E1000_TOTH 0x040CC /* Total Octets Tx High - R/clr */
+#define E1000_TPR 0x040D0 /* Total Packets Rx - R/clr */
+#define E1000_TPT 0x040D4 /* Total Packets Tx - R/clr */
+#define E1000_PTC64 0x040D8 /* Packets Tx (64 bytes) - R/clr */
+#define E1000_PTC127 0x040DC /* Packets Tx (65-127 bytes) - R/clr */
+#define E1000_PTC255 0x040E0 /* Packets Tx (128-255 bytes) - R/clr */
+#define E1000_PTC511 0x040E4 /* Packets Tx (256-511 bytes) - R/clr */
+#define E1000_PTC1023 0x040E8 /* Packets Tx (512-1023 bytes) - R/clr */
+#define E1000_PTC1522 0x040EC /* Packets Tx (1024-1522 Bytes) - R/clr */
+#define E1000_MPTC 0x040F0 /* Multicast Packets Tx Count - R/clr */
+#define E1000_BPTC 0x040F4 /* Broadcast Packets Tx Count - R/clr */
+#define E1000_TSCTC 0x040F8 /* TCP Segmentation Context Tx - R/clr */
+#define E1000_TSCTFC 0x040FC /* TCP Segmentation Context Tx Fail - R/clr */
+#define E1000_IAC 0x04100 /* Interrupt Assertion Count */
+/* Interrupt Cause */
+#define E1000_ICRXPTC 0x04104 /* Interrupt Cause Rx Pkt Timer Expire Count */
+#define E1000_ICRXATC 0x04108 /* Interrupt Cause Rx Abs Timer Expire Count */
+#define E1000_ICTXPTC 0x0410C /* Interrupt Cause Tx Pkt Timer Expire Count */
+#define E1000_ICTXATC 0x04110 /* Interrupt Cause Tx Abs Timer Expire Count */
+#define E1000_ICTXQEC 0x04118 /* Interrupt Cause Tx Queue Empty Count */
+#define E1000_ICTXQMTC 0x0411C /* Interrupt Cause Tx Queue Min Thresh Count */
+#define E1000_ICRXDMTC 0x04120 /* Interrupt Cause Rx Desc Min Thresh Count */
+#define E1000_ICRXOC 0x04124 /* Interrupt Cause Receiver Overrun Count */
+#define E1000_CRC_OFFSET 0x05F50 /* CRC Offset register */
+
+#define E1000_PCS_LCTL 0x04208 /* PCS Link Control - RW */
+#define E1000_PCS_LSTAT 0x0420C /* PCS Link Status - RO */
+#define E1000_PCS_ANADV 0x04218 /* AN advertisement - RW */
+#define E1000_PCS_LPAB 0x0421C /* Link Partner Ability - RW */
+#define E1000_RXCSUM 0x05000 /* Rx Checksum Control - RW */
+#define E1000_RFCTL 0x05008 /* Receive Filter Control */
+#define E1000_MTA 0x05200 /* Multicast Table Array - RW Array */
+#define E1000_RA 0x05400 /* Receive Address - RW Array */
+#define E1000_VFTA 0x05600 /* VLAN Filter Table Array - RW Array */
+#define E1000_WUC 0x05800 /* Wakeup Control - RW */
+#define E1000_WUFC 0x05808 /* Wakeup Filter Control - RW */
+#define E1000_WUS 0x05810 /* Wakeup Status - RO */
+/* Management registers */
+#define E1000_MANC 0x05820 /* Management Control - RW */
+#define E1000_FFLT 0x05F00 /* Flexible Filter Length Table - RW Array */
+#define E1000_HOST_IF 0x08800 /* Host Interface */
+
+#define E1000_KMRNCTRLSTA 0x00034 /* MAC-PHY interface - RW */
+#define E1000_MANC2H 0x05860 /* Management Control To Host - RW */
+/* Management Decision Filters */
+#define E1000_MDEF(_n) (0x05890 + (4 * (_n)))
+#define E1000_SW_FW_SYNC 0x05B5C /* SW-FW Synchronization - RW */
+/* PCIe Register Description */
+#define E1000_GCR 0x05B00 /* PCI-Ex Control */
+#define E1000_GCR2 0x05B64 /* PCI-Ex Control #2 */
+/* Function Active and Power State to MNG */
+#define E1000_FACTPS 0x05B30
+#define E1000_SWSM 0x05B50 /* SW Semaphore */
+#define E1000_FWSM 0x05B54 /* FW Semaphore */
+/* Driver-only SW semaphore (not used by BOOT agents) */
+#define E1000_SWSM2 0x05B58
+#define E1000_FFLT_DBG 0x05F04 /* Debug Register */
+#define E1000_HICR 0x08F00 /* Host Interface Control */
+
+/* RSS registers */
+#define E1000_MRQC 0x05818 /* Multiple Receive Control - RW */
+/* Redirection Table - RW Array */
+#define E1000_RETA(_i) (0x05C00 + ((_i) * 4))
+/* RSS Random Key - RW Array */
+#define E1000_RSSRK(_i) (0x05C80 + ((_i) * 4))
+#define E1000_TSYNCRXCTL 0x0B620 /* Rx Time Sync Control register - RW */
+#define E1000_TSYNCTXCTL 0x0B614 /* Tx Time Sync Control register - RW */
+#define E1000_RXSTMPL 0x0B624 /* Rx timestamp Low - RO */
+#define E1000_RXSTMPH 0x0B628 /* Rx timestamp High - RO */
+#define E1000_TXSTMPL 0x0B618 /* Tx timestamp value Low - RO */
+#define E1000_TXSTMPH 0x0B61C /* Tx timestamp value High - RO */
+#define E1000_SYSTIML 0x0B600 /* System time register Low - RO */
+#define E1000_SYSTIMH 0x0B604 /* System time register High - RO */
+#define E1000_TIMINCA 0x0B608 /* Increment attributes register - RW */
+#define E1000_SYSSTMPL 0x0B648 /* HH Timesync system stamp low register */
+#define E1000_SYSSTMPH 0x0B64C /* HH Timesync system stamp hi register */
+#define E1000_PLTSTMPL 0x0B640 /* HH Timesync platform stamp low register */
+#define E1000_PLTSTMPH 0x0B644 /* HH Timesync platform stamp hi register */
+#define E1000_RXMTRL 0x0B634 /* Time sync Rx EtherType and Msg Type - RW */
+#define E1000_RXUDP 0x0B638 /* Time Sync Rx UDP Port - RW */
+
+#endif
generated by cgit v1.2.3-18-g5258 (git 2.32.0) at 2024-12-22 06:52:04 +0000