2281 lines
68 KiB
C
2281 lines
68 KiB
C
/*******************************************************************************
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Intel 10 Gigabit PCI Express Linux driver
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Copyright(c) 1999 - 2016 Intel Corporation.
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This program is free software; you can redistribute it and/or modify it
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under the terms and conditions of the GNU General Public License,
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version 2, as published by the Free Software Foundation.
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This program is distributed in the hope it will be useful, but WITHOUT
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ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
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more details.
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You should have received a copy of the GNU General Public License along with
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this program; if not, write to the Free Software Foundation, Inc.,
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51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
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The full GNU General Public License is included in this distribution in
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the file called "COPYING".
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Contact Information:
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Linux NICS <linux.nics@intel.com>
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e1000-devel Mailing List <e1000-devel@lists.sourceforge.net>
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Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
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*******************************************************************************/
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#include <linux/pci.h>
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#include <linux/delay.h>
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#include <linux/sched.h>
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#include "ixgbe.h"
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#include "ixgbe_phy.h"
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#include "ixgbe_mbx.h"
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#define IXGBE_82599_MAX_TX_QUEUES 128
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#define IXGBE_82599_MAX_RX_QUEUES 128
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#define IXGBE_82599_RAR_ENTRIES 128
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#define IXGBE_82599_MC_TBL_SIZE 128
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#define IXGBE_82599_VFT_TBL_SIZE 128
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#define IXGBE_82599_RX_PB_SIZE 512
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static void ixgbe_disable_tx_laser_multispeed_fiber(struct ixgbe_hw *hw);
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static void ixgbe_enable_tx_laser_multispeed_fiber(struct ixgbe_hw *hw);
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static void ixgbe_flap_tx_laser_multispeed_fiber(struct ixgbe_hw *hw);
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static void
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ixgbe_set_hard_rate_select_speed(struct ixgbe_hw *, ixgbe_link_speed);
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static s32 ixgbe_setup_mac_link_smartspeed(struct ixgbe_hw *hw,
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ixgbe_link_speed speed,
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bool autoneg_wait_to_complete);
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static void ixgbe_stop_mac_link_on_d3_82599(struct ixgbe_hw *hw);
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static s32 ixgbe_start_mac_link_82599(struct ixgbe_hw *hw,
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bool autoneg_wait_to_complete);
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static s32 ixgbe_setup_mac_link_82599(struct ixgbe_hw *hw,
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ixgbe_link_speed speed,
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bool autoneg_wait_to_complete);
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static s32 ixgbe_setup_copper_link_82599(struct ixgbe_hw *hw,
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ixgbe_link_speed speed,
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bool autoneg_wait_to_complete);
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static s32 ixgbe_verify_fw_version_82599(struct ixgbe_hw *hw);
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static s32 ixgbe_read_i2c_byte_82599(struct ixgbe_hw *hw, u8 byte_offset,
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u8 dev_addr, u8 *data);
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static s32 ixgbe_write_i2c_byte_82599(struct ixgbe_hw *hw, u8 byte_offset,
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u8 dev_addr, u8 data);
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static s32 ixgbe_reset_pipeline_82599(struct ixgbe_hw *hw);
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static bool ixgbe_verify_lesm_fw_enabled_82599(struct ixgbe_hw *hw);
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bool ixgbe_mng_enabled(struct ixgbe_hw *hw)
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{
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u32 fwsm, manc, factps;
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fwsm = IXGBE_READ_REG(hw, IXGBE_FWSM(hw));
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if ((fwsm & IXGBE_FWSM_MODE_MASK) != IXGBE_FWSM_FW_MODE_PT)
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return false;
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manc = IXGBE_READ_REG(hw, IXGBE_MANC);
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if (!(manc & IXGBE_MANC_RCV_TCO_EN))
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return false;
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factps = IXGBE_READ_REG(hw, IXGBE_FACTPS(hw));
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if (factps & IXGBE_FACTPS_MNGCG)
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return false;
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return true;
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}
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static void ixgbe_init_mac_link_ops_82599(struct ixgbe_hw *hw)
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{
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struct ixgbe_mac_info *mac = &hw->mac;
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/* enable the laser control functions for SFP+ fiber
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* and MNG not enabled
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*/
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if ((mac->ops.get_media_type(hw) == ixgbe_media_type_fiber) &&
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!ixgbe_mng_enabled(hw)) {
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mac->ops.disable_tx_laser =
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&ixgbe_disable_tx_laser_multispeed_fiber;
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mac->ops.enable_tx_laser =
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&ixgbe_enable_tx_laser_multispeed_fiber;
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mac->ops.flap_tx_laser = &ixgbe_flap_tx_laser_multispeed_fiber;
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} else {
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mac->ops.disable_tx_laser = NULL;
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mac->ops.enable_tx_laser = NULL;
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mac->ops.flap_tx_laser = NULL;
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}
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if (hw->phy.multispeed_fiber) {
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/* Set up dual speed SFP+ support */
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mac->ops.setup_link = &ixgbe_setup_mac_link_multispeed_fiber;
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mac->ops.setup_mac_link = ixgbe_setup_mac_link_82599;
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mac->ops.set_rate_select_speed =
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ixgbe_set_hard_rate_select_speed;
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} else {
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if ((mac->ops.get_media_type(hw) ==
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ixgbe_media_type_backplane) &&
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(hw->phy.smart_speed == ixgbe_smart_speed_auto ||
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hw->phy.smart_speed == ixgbe_smart_speed_on) &&
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!ixgbe_verify_lesm_fw_enabled_82599(hw))
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mac->ops.setup_link = &ixgbe_setup_mac_link_smartspeed;
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else
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mac->ops.setup_link = &ixgbe_setup_mac_link_82599;
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}
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}
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static s32 ixgbe_setup_sfp_modules_82599(struct ixgbe_hw *hw)
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{
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s32 ret_val;
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u16 list_offset, data_offset, data_value;
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if (hw->phy.sfp_type != ixgbe_sfp_type_unknown) {
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ixgbe_init_mac_link_ops_82599(hw);
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hw->phy.ops.reset = NULL;
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ret_val = ixgbe_get_sfp_init_sequence_offsets(hw, &list_offset,
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&data_offset);
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if (ret_val)
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return ret_val;
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/* PHY config will finish before releasing the semaphore */
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ret_val = hw->mac.ops.acquire_swfw_sync(hw,
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IXGBE_GSSR_MAC_CSR_SM);
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if (ret_val)
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return IXGBE_ERR_SWFW_SYNC;
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if (hw->eeprom.ops.read(hw, ++data_offset, &data_value))
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goto setup_sfp_err;
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while (data_value != 0xffff) {
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IXGBE_WRITE_REG(hw, IXGBE_CORECTL, data_value);
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IXGBE_WRITE_FLUSH(hw);
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if (hw->eeprom.ops.read(hw, ++data_offset, &data_value))
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goto setup_sfp_err;
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}
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/* Release the semaphore */
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hw->mac.ops.release_swfw_sync(hw, IXGBE_GSSR_MAC_CSR_SM);
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/*
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* Delay obtaining semaphore again to allow FW access,
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* semaphore_delay is in ms usleep_range needs us.
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*/
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usleep_range(hw->eeprom.semaphore_delay * 1000,
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hw->eeprom.semaphore_delay * 2000);
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/* Restart DSP and set SFI mode */
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ret_val = hw->mac.ops.prot_autoc_write(hw,
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hw->mac.orig_autoc | IXGBE_AUTOC_LMS_10G_SERIAL,
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false);
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if (ret_val) {
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hw_dbg(hw, " sfp module setup not complete\n");
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return IXGBE_ERR_SFP_SETUP_NOT_COMPLETE;
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}
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}
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return 0;
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setup_sfp_err:
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/* Release the semaphore */
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hw->mac.ops.release_swfw_sync(hw, IXGBE_GSSR_MAC_CSR_SM);
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/* Delay obtaining semaphore again to allow FW access,
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* semaphore_delay is in ms usleep_range needs us.
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*/
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usleep_range(hw->eeprom.semaphore_delay * 1000,
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hw->eeprom.semaphore_delay * 2000);
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hw_err(hw, "eeprom read at offset %d failed\n", data_offset);
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return IXGBE_ERR_SFP_SETUP_NOT_COMPLETE;
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}
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/**
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* prot_autoc_read_82599 - Hides MAC differences needed for AUTOC read
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* @hw: pointer to hardware structure
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* @locked: Return the if we locked for this read.
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* @reg_val: Value we read from AUTOC
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*
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* For this part (82599) we need to wrap read-modify-writes with a possible
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* FW/SW lock. It is assumed this lock will be freed with the next
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* prot_autoc_write_82599(). Note, that locked can only be true in cases
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* where this function doesn't return an error.
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**/
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static s32 prot_autoc_read_82599(struct ixgbe_hw *hw, bool *locked,
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u32 *reg_val)
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{
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s32 ret_val;
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*locked = false;
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/* If LESM is on then we need to hold the SW/FW semaphore. */
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if (ixgbe_verify_lesm_fw_enabled_82599(hw)) {
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ret_val = hw->mac.ops.acquire_swfw_sync(hw,
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IXGBE_GSSR_MAC_CSR_SM);
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if (ret_val)
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return IXGBE_ERR_SWFW_SYNC;
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*locked = true;
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}
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*reg_val = IXGBE_READ_REG(hw, IXGBE_AUTOC);
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return 0;
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}
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/**
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* prot_autoc_write_82599 - Hides MAC differences needed for AUTOC write
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* @hw: pointer to hardware structure
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* @autoc: value to write to AUTOC
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* @locked: bool to indicate whether the SW/FW lock was already taken by
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* previous proc_autoc_read_82599.
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*
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* This part (82599) may need to hold a the SW/FW lock around all writes to
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* AUTOC. Likewise after a write we need to do a pipeline reset.
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**/
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static s32 prot_autoc_write_82599(struct ixgbe_hw *hw, u32 autoc, bool locked)
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{
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s32 ret_val = 0;
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/* Blocked by MNG FW so bail */
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if (ixgbe_check_reset_blocked(hw))
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goto out;
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/* We only need to get the lock if:
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* - We didn't do it already (in the read part of a read-modify-write)
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* - LESM is enabled.
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*/
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if (!locked && ixgbe_verify_lesm_fw_enabled_82599(hw)) {
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ret_val = hw->mac.ops.acquire_swfw_sync(hw,
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IXGBE_GSSR_MAC_CSR_SM);
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if (ret_val)
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return IXGBE_ERR_SWFW_SYNC;
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locked = true;
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}
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IXGBE_WRITE_REG(hw, IXGBE_AUTOC, autoc);
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ret_val = ixgbe_reset_pipeline_82599(hw);
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out:
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/* Free the SW/FW semaphore as we either grabbed it here or
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* already had it when this function was called.
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*/
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if (locked)
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hw->mac.ops.release_swfw_sync(hw, IXGBE_GSSR_MAC_CSR_SM);
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return ret_val;
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}
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static s32 ixgbe_get_invariants_82599(struct ixgbe_hw *hw)
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{
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struct ixgbe_mac_info *mac = &hw->mac;
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ixgbe_init_mac_link_ops_82599(hw);
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mac->mcft_size = IXGBE_82599_MC_TBL_SIZE;
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mac->vft_size = IXGBE_82599_VFT_TBL_SIZE;
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mac->num_rar_entries = IXGBE_82599_RAR_ENTRIES;
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mac->rx_pb_size = IXGBE_82599_RX_PB_SIZE;
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mac->max_rx_queues = IXGBE_82599_MAX_RX_QUEUES;
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mac->max_tx_queues = IXGBE_82599_MAX_TX_QUEUES;
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mac->max_msix_vectors = ixgbe_get_pcie_msix_count_generic(hw);
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return 0;
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}
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/**
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* ixgbe_init_phy_ops_82599 - PHY/SFP specific init
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* @hw: pointer to hardware structure
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*
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* Initialize any function pointers that were not able to be
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* set during get_invariants because the PHY/SFP type was
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* not known. Perform the SFP init if necessary.
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*
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**/
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static s32 ixgbe_init_phy_ops_82599(struct ixgbe_hw *hw)
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{
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struct ixgbe_mac_info *mac = &hw->mac;
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struct ixgbe_phy_info *phy = &hw->phy;
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s32 ret_val;
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u32 esdp;
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if (hw->device_id == IXGBE_DEV_ID_82599_QSFP_SF_QP) {
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/* Store flag indicating I2C bus access control unit. */
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hw->phy.qsfp_shared_i2c_bus = true;
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/* Initialize access to QSFP+ I2C bus */
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esdp = IXGBE_READ_REG(hw, IXGBE_ESDP);
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esdp |= IXGBE_ESDP_SDP0_DIR;
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esdp &= ~IXGBE_ESDP_SDP1_DIR;
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esdp &= ~IXGBE_ESDP_SDP0;
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esdp &= ~IXGBE_ESDP_SDP0_NATIVE;
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esdp &= ~IXGBE_ESDP_SDP1_NATIVE;
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IXGBE_WRITE_REG(hw, IXGBE_ESDP, esdp);
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IXGBE_WRITE_FLUSH(hw);
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phy->ops.read_i2c_byte = &ixgbe_read_i2c_byte_82599;
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phy->ops.write_i2c_byte = &ixgbe_write_i2c_byte_82599;
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}
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/* Identify the PHY or SFP module */
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ret_val = phy->ops.identify(hw);
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/* Setup function pointers based on detected SFP module and speeds */
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ixgbe_init_mac_link_ops_82599(hw);
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/* If copper media, overwrite with copper function pointers */
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if (mac->ops.get_media_type(hw) == ixgbe_media_type_copper) {
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mac->ops.setup_link = &ixgbe_setup_copper_link_82599;
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mac->ops.get_link_capabilities =
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&ixgbe_get_copper_link_capabilities_generic;
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}
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/* Set necessary function pointers based on phy type */
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switch (hw->phy.type) {
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case ixgbe_phy_tn:
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phy->ops.check_link = &ixgbe_check_phy_link_tnx;
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phy->ops.setup_link = &ixgbe_setup_phy_link_tnx;
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break;
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default:
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break;
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}
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return ret_val;
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}
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/**
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* ixgbe_get_link_capabilities_82599 - Determines link capabilities
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* @hw: pointer to hardware structure
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* @speed: pointer to link speed
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* @autoneg: true when autoneg or autotry is enabled
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*
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* Determines the link capabilities by reading the AUTOC register.
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**/
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static s32 ixgbe_get_link_capabilities_82599(struct ixgbe_hw *hw,
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ixgbe_link_speed *speed,
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bool *autoneg)
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{
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u32 autoc = 0;
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/* Determine 1G link capabilities off of SFP+ type */
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if (hw->phy.sfp_type == ixgbe_sfp_type_1g_cu_core0 ||
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hw->phy.sfp_type == ixgbe_sfp_type_1g_cu_core1 ||
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hw->phy.sfp_type == ixgbe_sfp_type_1g_lx_core0 ||
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hw->phy.sfp_type == ixgbe_sfp_type_1g_lx_core1 ||
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hw->phy.sfp_type == ixgbe_sfp_type_1g_sx_core0 ||
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hw->phy.sfp_type == ixgbe_sfp_type_1g_sx_core1) {
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*speed = IXGBE_LINK_SPEED_1GB_FULL;
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*autoneg = true;
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return 0;
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}
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/*
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* Determine link capabilities based on the stored value of AUTOC,
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* which represents EEPROM defaults. If AUTOC value has not been
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* stored, use the current register value.
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*/
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if (hw->mac.orig_link_settings_stored)
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autoc = hw->mac.orig_autoc;
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else
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autoc = IXGBE_READ_REG(hw, IXGBE_AUTOC);
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switch (autoc & IXGBE_AUTOC_LMS_MASK) {
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case IXGBE_AUTOC_LMS_1G_LINK_NO_AN:
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*speed = IXGBE_LINK_SPEED_1GB_FULL;
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*autoneg = false;
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break;
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case IXGBE_AUTOC_LMS_10G_LINK_NO_AN:
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*speed = IXGBE_LINK_SPEED_10GB_FULL;
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*autoneg = false;
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break;
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case IXGBE_AUTOC_LMS_1G_AN:
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*speed = IXGBE_LINK_SPEED_1GB_FULL;
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*autoneg = true;
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break;
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case IXGBE_AUTOC_LMS_10G_SERIAL:
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*speed = IXGBE_LINK_SPEED_10GB_FULL;
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*autoneg = false;
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break;
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case IXGBE_AUTOC_LMS_KX4_KX_KR:
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case IXGBE_AUTOC_LMS_KX4_KX_KR_1G_AN:
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*speed = IXGBE_LINK_SPEED_UNKNOWN;
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if (autoc & IXGBE_AUTOC_KR_SUPP)
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*speed |= IXGBE_LINK_SPEED_10GB_FULL;
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if (autoc & IXGBE_AUTOC_KX4_SUPP)
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*speed |= IXGBE_LINK_SPEED_10GB_FULL;
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if (autoc & IXGBE_AUTOC_KX_SUPP)
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*speed |= IXGBE_LINK_SPEED_1GB_FULL;
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*autoneg = true;
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break;
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case IXGBE_AUTOC_LMS_KX4_KX_KR_SGMII:
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*speed = IXGBE_LINK_SPEED_100_FULL;
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if (autoc & IXGBE_AUTOC_KR_SUPP)
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*speed |= IXGBE_LINK_SPEED_10GB_FULL;
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if (autoc & IXGBE_AUTOC_KX4_SUPP)
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*speed |= IXGBE_LINK_SPEED_10GB_FULL;
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if (autoc & IXGBE_AUTOC_KX_SUPP)
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*speed |= IXGBE_LINK_SPEED_1GB_FULL;
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*autoneg = true;
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break;
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case IXGBE_AUTOC_LMS_SGMII_1G_100M:
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*speed = IXGBE_LINK_SPEED_1GB_FULL | IXGBE_LINK_SPEED_100_FULL;
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*autoneg = false;
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break;
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default:
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return IXGBE_ERR_LINK_SETUP;
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}
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if (hw->phy.multispeed_fiber) {
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*speed |= IXGBE_LINK_SPEED_10GB_FULL |
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IXGBE_LINK_SPEED_1GB_FULL;
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/* QSFP must not enable auto-negotiation */
|
|
if (hw->phy.media_type == ixgbe_media_type_fiber_qsfp)
|
|
*autoneg = false;
|
|
else
|
|
*autoneg = true;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
/**
|
|
* ixgbe_get_media_type_82599 - Get media type
|
|
* @hw: pointer to hardware structure
|
|
*
|
|
* Returns the media type (fiber, copper, backplane)
|
|
**/
|
|
static enum ixgbe_media_type ixgbe_get_media_type_82599(struct ixgbe_hw *hw)
|
|
{
|
|
/* Detect if there is a copper PHY attached. */
|
|
switch (hw->phy.type) {
|
|
case ixgbe_phy_cu_unknown:
|
|
case ixgbe_phy_tn:
|
|
return ixgbe_media_type_copper;
|
|
|
|
default:
|
|
break;
|
|
}
|
|
|
|
switch (hw->device_id) {
|
|
case IXGBE_DEV_ID_82599_KX4:
|
|
case IXGBE_DEV_ID_82599_KX4_MEZZ:
|
|
case IXGBE_DEV_ID_82599_COMBO_BACKPLANE:
|
|
case IXGBE_DEV_ID_82599_KR:
|
|
case IXGBE_DEV_ID_82599_BACKPLANE_FCOE:
|
|
case IXGBE_DEV_ID_82599_XAUI_LOM:
|
|
/* Default device ID is mezzanine card KX/KX4 */
|
|
return ixgbe_media_type_backplane;
|
|
|
|
case IXGBE_DEV_ID_82599_SFP:
|
|
case IXGBE_DEV_ID_82599_SFP_FCOE:
|
|
case IXGBE_DEV_ID_82599_SFP_EM:
|
|
case IXGBE_DEV_ID_82599_SFP_SF2:
|
|
case IXGBE_DEV_ID_82599_SFP_SF_QP:
|
|
case IXGBE_DEV_ID_82599EN_SFP:
|
|
return ixgbe_media_type_fiber;
|
|
|
|
case IXGBE_DEV_ID_82599_CX4:
|
|
return ixgbe_media_type_cx4;
|
|
|
|
case IXGBE_DEV_ID_82599_T3_LOM:
|
|
return ixgbe_media_type_copper;
|
|
|
|
case IXGBE_DEV_ID_82599_LS:
|
|
return ixgbe_media_type_fiber_lco;
|
|
|
|
case IXGBE_DEV_ID_82599_QSFP_SF_QP:
|
|
return ixgbe_media_type_fiber_qsfp;
|
|
|
|
default:
|
|
return ixgbe_media_type_unknown;
|
|
}
|
|
}
|
|
|
|
/**
|
|
* ixgbe_stop_mac_link_on_d3_82599 - Disables link on D3
|
|
* @hw: pointer to hardware structure
|
|
*
|
|
* Disables link, should be called during D3 power down sequence.
|
|
*
|
|
**/
|
|
static void ixgbe_stop_mac_link_on_d3_82599(struct ixgbe_hw *hw)
|
|
{
|
|
u32 autoc2_reg;
|
|
u16 ee_ctrl_2 = 0;
|
|
|
|
hw->eeprom.ops.read(hw, IXGBE_EEPROM_CTRL_2, &ee_ctrl_2);
|
|
|
|
if (!ixgbe_mng_present(hw) && !hw->wol_enabled &&
|
|
ee_ctrl_2 & IXGBE_EEPROM_CCD_BIT) {
|
|
autoc2_reg = IXGBE_READ_REG(hw, IXGBE_AUTOC2);
|
|
autoc2_reg |= IXGBE_AUTOC2_LINK_DISABLE_ON_D3_MASK;
|
|
IXGBE_WRITE_REG(hw, IXGBE_AUTOC2, autoc2_reg);
|
|
}
|
|
}
|
|
|
|
/**
|
|
* ixgbe_start_mac_link_82599 - Setup MAC link settings
|
|
* @hw: pointer to hardware structure
|
|
* @autoneg_wait_to_complete: true when waiting for completion is needed
|
|
*
|
|
* Configures link settings based on values in the ixgbe_hw struct.
|
|
* Restarts the link. Performs autonegotiation if needed.
|
|
**/
|
|
static s32 ixgbe_start_mac_link_82599(struct ixgbe_hw *hw,
|
|
bool autoneg_wait_to_complete)
|
|
{
|
|
u32 autoc_reg;
|
|
u32 links_reg;
|
|
u32 i;
|
|
s32 status = 0;
|
|
bool got_lock = false;
|
|
|
|
if (ixgbe_verify_lesm_fw_enabled_82599(hw)) {
|
|
status = hw->mac.ops.acquire_swfw_sync(hw,
|
|
IXGBE_GSSR_MAC_CSR_SM);
|
|
if (status)
|
|
return status;
|
|
|
|
got_lock = true;
|
|
}
|
|
|
|
/* Restart link */
|
|
ixgbe_reset_pipeline_82599(hw);
|
|
|
|
if (got_lock)
|
|
hw->mac.ops.release_swfw_sync(hw, IXGBE_GSSR_MAC_CSR_SM);
|
|
|
|
/* Only poll for autoneg to complete if specified to do so */
|
|
if (autoneg_wait_to_complete) {
|
|
autoc_reg = IXGBE_READ_REG(hw, IXGBE_AUTOC);
|
|
if ((autoc_reg & IXGBE_AUTOC_LMS_MASK) ==
|
|
IXGBE_AUTOC_LMS_KX4_KX_KR ||
|
|
(autoc_reg & IXGBE_AUTOC_LMS_MASK) ==
|
|
IXGBE_AUTOC_LMS_KX4_KX_KR_1G_AN ||
|
|
(autoc_reg & IXGBE_AUTOC_LMS_MASK) ==
|
|
IXGBE_AUTOC_LMS_KX4_KX_KR_SGMII) {
|
|
links_reg = 0; /* Just in case Autoneg time = 0 */
|
|
for (i = 0; i < IXGBE_AUTO_NEG_TIME; i++) {
|
|
links_reg = IXGBE_READ_REG(hw, IXGBE_LINKS);
|
|
if (links_reg & IXGBE_LINKS_KX_AN_COMP)
|
|
break;
|
|
msleep(100);
|
|
}
|
|
if (!(links_reg & IXGBE_LINKS_KX_AN_COMP)) {
|
|
status = IXGBE_ERR_AUTONEG_NOT_COMPLETE;
|
|
hw_dbg(hw, "Autoneg did not complete.\n");
|
|
}
|
|
}
|
|
}
|
|
|
|
/* Add delay to filter out noises during initial link setup */
|
|
msleep(50);
|
|
|
|
return status;
|
|
}
|
|
|
|
/**
|
|
* ixgbe_disable_tx_laser_multispeed_fiber - Disable Tx laser
|
|
* @hw: pointer to hardware structure
|
|
*
|
|
* The base drivers may require better control over SFP+ module
|
|
* PHY states. This includes selectively shutting down the Tx
|
|
* laser on the PHY, effectively halting physical link.
|
|
**/
|
|
static void ixgbe_disable_tx_laser_multispeed_fiber(struct ixgbe_hw *hw)
|
|
{
|
|
u32 esdp_reg = IXGBE_READ_REG(hw, IXGBE_ESDP);
|
|
|
|
/* Blocked by MNG FW so bail */
|
|
if (ixgbe_check_reset_blocked(hw))
|
|
return;
|
|
|
|
/* Disable tx laser; allow 100us to go dark per spec */
|
|
esdp_reg |= IXGBE_ESDP_SDP3;
|
|
IXGBE_WRITE_REG(hw, IXGBE_ESDP, esdp_reg);
|
|
IXGBE_WRITE_FLUSH(hw);
|
|
udelay(100);
|
|
}
|
|
|
|
/**
|
|
* ixgbe_enable_tx_laser_multispeed_fiber - Enable Tx laser
|
|
* @hw: pointer to hardware structure
|
|
*
|
|
* The base drivers may require better control over SFP+ module
|
|
* PHY states. This includes selectively turning on the Tx
|
|
* laser on the PHY, effectively starting physical link.
|
|
**/
|
|
static void ixgbe_enable_tx_laser_multispeed_fiber(struct ixgbe_hw *hw)
|
|
{
|
|
u32 esdp_reg = IXGBE_READ_REG(hw, IXGBE_ESDP);
|
|
|
|
/* Enable tx laser; allow 100ms to light up */
|
|
esdp_reg &= ~IXGBE_ESDP_SDP3;
|
|
IXGBE_WRITE_REG(hw, IXGBE_ESDP, esdp_reg);
|
|
IXGBE_WRITE_FLUSH(hw);
|
|
msleep(100);
|
|
}
|
|
|
|
/**
|
|
* ixgbe_flap_tx_laser_multispeed_fiber - Flap Tx laser
|
|
* @hw: pointer to hardware structure
|
|
*
|
|
* When the driver changes the link speeds that it can support,
|
|
* it sets autotry_restart to true to indicate that we need to
|
|
* initiate a new autotry session with the link partner. To do
|
|
* so, we set the speed then disable and re-enable the tx laser, to
|
|
* alert the link partner that it also needs to restart autotry on its
|
|
* end. This is consistent with true clause 37 autoneg, which also
|
|
* involves a loss of signal.
|
|
**/
|
|
static void ixgbe_flap_tx_laser_multispeed_fiber(struct ixgbe_hw *hw)
|
|
{
|
|
/* Blocked by MNG FW so bail */
|
|
if (ixgbe_check_reset_blocked(hw))
|
|
return;
|
|
|
|
if (hw->mac.autotry_restart) {
|
|
ixgbe_disable_tx_laser_multispeed_fiber(hw);
|
|
ixgbe_enable_tx_laser_multispeed_fiber(hw);
|
|
hw->mac.autotry_restart = false;
|
|
}
|
|
}
|
|
|
|
/**
|
|
* ixgbe_set_hard_rate_select_speed - Set module link speed
|
|
* @hw: pointer to hardware structure
|
|
* @speed: link speed to set
|
|
*
|
|
* Set module link speed via RS0/RS1 rate select pins.
|
|
*/
|
|
static void
|
|
ixgbe_set_hard_rate_select_speed(struct ixgbe_hw *hw, ixgbe_link_speed speed)
|
|
{
|
|
u32 esdp_reg = IXGBE_READ_REG(hw, IXGBE_ESDP);
|
|
|
|
switch (speed) {
|
|
case IXGBE_LINK_SPEED_10GB_FULL:
|
|
esdp_reg |= (IXGBE_ESDP_SDP5_DIR | IXGBE_ESDP_SDP5);
|
|
break;
|
|
case IXGBE_LINK_SPEED_1GB_FULL:
|
|
esdp_reg &= ~IXGBE_ESDP_SDP5;
|
|
esdp_reg |= IXGBE_ESDP_SDP5_DIR;
|
|
break;
|
|
default:
|
|
hw_dbg(hw, "Invalid fixed module speed\n");
|
|
return;
|
|
}
|
|
|
|
IXGBE_WRITE_REG(hw, IXGBE_ESDP, esdp_reg);
|
|
IXGBE_WRITE_FLUSH(hw);
|
|
}
|
|
|
|
/**
|
|
* ixgbe_setup_mac_link_smartspeed - Set MAC link speed using SmartSpeed
|
|
* @hw: pointer to hardware structure
|
|
* @speed: new link speed
|
|
* @autoneg_wait_to_complete: true when waiting for completion is needed
|
|
*
|
|
* Implements the Intel SmartSpeed algorithm.
|
|
**/
|
|
static s32 ixgbe_setup_mac_link_smartspeed(struct ixgbe_hw *hw,
|
|
ixgbe_link_speed speed,
|
|
bool autoneg_wait_to_complete)
|
|
{
|
|
s32 status = 0;
|
|
ixgbe_link_speed link_speed = IXGBE_LINK_SPEED_UNKNOWN;
|
|
s32 i, j;
|
|
bool link_up = false;
|
|
u32 autoc_reg = IXGBE_READ_REG(hw, IXGBE_AUTOC);
|
|
|
|
/* Set autoneg_advertised value based on input link speed */
|
|
hw->phy.autoneg_advertised = 0;
|
|
|
|
if (speed & IXGBE_LINK_SPEED_10GB_FULL)
|
|
hw->phy.autoneg_advertised |= IXGBE_LINK_SPEED_10GB_FULL;
|
|
|
|
if (speed & IXGBE_LINK_SPEED_1GB_FULL)
|
|
hw->phy.autoneg_advertised |= IXGBE_LINK_SPEED_1GB_FULL;
|
|
|
|
if (speed & IXGBE_LINK_SPEED_100_FULL)
|
|
hw->phy.autoneg_advertised |= IXGBE_LINK_SPEED_100_FULL;
|
|
|
|
/*
|
|
* Implement Intel SmartSpeed algorithm. SmartSpeed will reduce the
|
|
* autoneg advertisement if link is unable to be established at the
|
|
* highest negotiated rate. This can sometimes happen due to integrity
|
|
* issues with the physical media connection.
|
|
*/
|
|
|
|
/* First, try to get link with full advertisement */
|
|
hw->phy.smart_speed_active = false;
|
|
for (j = 0; j < IXGBE_SMARTSPEED_MAX_RETRIES; j++) {
|
|
status = ixgbe_setup_mac_link_82599(hw, speed,
|
|
autoneg_wait_to_complete);
|
|
if (status != 0)
|
|
goto out;
|
|
|
|
/*
|
|
* Wait for the controller to acquire link. Per IEEE 802.3ap,
|
|
* Section 73.10.2, we may have to wait up to 500ms if KR is
|
|
* attempted, or 200ms if KX/KX4/BX/BX4 is attempted, per
|
|
* Table 9 in the AN MAS.
|
|
*/
|
|
for (i = 0; i < 5; i++) {
|
|
mdelay(100);
|
|
|
|
/* If we have link, just jump out */
|
|
status = hw->mac.ops.check_link(hw, &link_speed,
|
|
&link_up, false);
|
|
if (status != 0)
|
|
goto out;
|
|
|
|
if (link_up)
|
|
goto out;
|
|
}
|
|
}
|
|
|
|
/*
|
|
* We didn't get link. If we advertised KR plus one of KX4/KX
|
|
* (or BX4/BX), then disable KR and try again.
|
|
*/
|
|
if (((autoc_reg & IXGBE_AUTOC_KR_SUPP) == 0) ||
|
|
((autoc_reg & IXGBE_AUTOC_KX4_KX_SUPP_MASK) == 0))
|
|
goto out;
|
|
|
|
/* Turn SmartSpeed on to disable KR support */
|
|
hw->phy.smart_speed_active = true;
|
|
status = ixgbe_setup_mac_link_82599(hw, speed,
|
|
autoneg_wait_to_complete);
|
|
if (status != 0)
|
|
goto out;
|
|
|
|
/*
|
|
* Wait for the controller to acquire link. 600ms will allow for
|
|
* the AN link_fail_inhibit_timer as well for multiple cycles of
|
|
* parallel detect, both 10g and 1g. This allows for the maximum
|
|
* connect attempts as defined in the AN MAS table 73-7.
|
|
*/
|
|
for (i = 0; i < 6; i++) {
|
|
mdelay(100);
|
|
|
|
/* If we have link, just jump out */
|
|
status = hw->mac.ops.check_link(hw, &link_speed,
|
|
&link_up, false);
|
|
if (status != 0)
|
|
goto out;
|
|
|
|
if (link_up)
|
|
goto out;
|
|
}
|
|
|
|
/* We didn't get link. Turn SmartSpeed back off. */
|
|
hw->phy.smart_speed_active = false;
|
|
status = ixgbe_setup_mac_link_82599(hw, speed,
|
|
autoneg_wait_to_complete);
|
|
|
|
out:
|
|
if (link_up && (link_speed == IXGBE_LINK_SPEED_1GB_FULL))
|
|
hw_dbg(hw, "Smartspeed has downgraded the link speed from the maximum advertised\n");
|
|
return status;
|
|
}
|
|
|
|
/**
|
|
* ixgbe_setup_mac_link_82599 - Set MAC link speed
|
|
* @hw: pointer to hardware structure
|
|
* @speed: new link speed
|
|
* @autoneg_wait_to_complete: true when waiting for completion is needed
|
|
*
|
|
* Set the link speed in the AUTOC register and restarts link.
|
|
**/
|
|
static s32 ixgbe_setup_mac_link_82599(struct ixgbe_hw *hw,
|
|
ixgbe_link_speed speed,
|
|
bool autoneg_wait_to_complete)
|
|
{
|
|
bool autoneg = false;
|
|
s32 status;
|
|
u32 pma_pmd_1g, link_mode, links_reg, i;
|
|
u32 autoc2 = IXGBE_READ_REG(hw, IXGBE_AUTOC2);
|
|
u32 pma_pmd_10g_serial = autoc2 & IXGBE_AUTOC2_10G_SERIAL_PMA_PMD_MASK;
|
|
ixgbe_link_speed link_capabilities = IXGBE_LINK_SPEED_UNKNOWN;
|
|
|
|
/* holds the value of AUTOC register at this current point in time */
|
|
u32 current_autoc = IXGBE_READ_REG(hw, IXGBE_AUTOC);
|
|
/* holds the cached value of AUTOC register */
|
|
u32 orig_autoc = 0;
|
|
/* temporary variable used for comparison purposes */
|
|
u32 autoc = current_autoc;
|
|
|
|
/* Check to see if speed passed in is supported. */
|
|
status = hw->mac.ops.get_link_capabilities(hw, &link_capabilities,
|
|
&autoneg);
|
|
if (status)
|
|
return status;
|
|
|
|
speed &= link_capabilities;
|
|
|
|
if (speed == IXGBE_LINK_SPEED_UNKNOWN)
|
|
return IXGBE_ERR_LINK_SETUP;
|
|
|
|
/* Use stored value (EEPROM defaults) of AUTOC to find KR/KX4 support*/
|
|
if (hw->mac.orig_link_settings_stored)
|
|
orig_autoc = hw->mac.orig_autoc;
|
|
else
|
|
orig_autoc = autoc;
|
|
|
|
link_mode = autoc & IXGBE_AUTOC_LMS_MASK;
|
|
pma_pmd_1g = autoc & IXGBE_AUTOC_1G_PMA_PMD_MASK;
|
|
|
|
if (link_mode == IXGBE_AUTOC_LMS_KX4_KX_KR ||
|
|
link_mode == IXGBE_AUTOC_LMS_KX4_KX_KR_1G_AN ||
|
|
link_mode == IXGBE_AUTOC_LMS_KX4_KX_KR_SGMII) {
|
|
/* Set KX4/KX/KR support according to speed requested */
|
|
autoc &= ~(IXGBE_AUTOC_KX4_KX_SUPP_MASK | IXGBE_AUTOC_KR_SUPP);
|
|
if (speed & IXGBE_LINK_SPEED_10GB_FULL) {
|
|
if (orig_autoc & IXGBE_AUTOC_KX4_SUPP)
|
|
autoc |= IXGBE_AUTOC_KX4_SUPP;
|
|
if ((orig_autoc & IXGBE_AUTOC_KR_SUPP) &&
|
|
(hw->phy.smart_speed_active == false))
|
|
autoc |= IXGBE_AUTOC_KR_SUPP;
|
|
}
|
|
if (speed & IXGBE_LINK_SPEED_1GB_FULL)
|
|
autoc |= IXGBE_AUTOC_KX_SUPP;
|
|
} else if ((pma_pmd_1g == IXGBE_AUTOC_1G_SFI) &&
|
|
(link_mode == IXGBE_AUTOC_LMS_1G_LINK_NO_AN ||
|
|
link_mode == IXGBE_AUTOC_LMS_1G_AN)) {
|
|
/* Switch from 1G SFI to 10G SFI if requested */
|
|
if ((speed == IXGBE_LINK_SPEED_10GB_FULL) &&
|
|
(pma_pmd_10g_serial == IXGBE_AUTOC2_10G_SFI)) {
|
|
autoc &= ~IXGBE_AUTOC_LMS_MASK;
|
|
autoc |= IXGBE_AUTOC_LMS_10G_SERIAL;
|
|
}
|
|
} else if ((pma_pmd_10g_serial == IXGBE_AUTOC2_10G_SFI) &&
|
|
(link_mode == IXGBE_AUTOC_LMS_10G_SERIAL)) {
|
|
/* Switch from 10G SFI to 1G SFI if requested */
|
|
if ((speed == IXGBE_LINK_SPEED_1GB_FULL) &&
|
|
(pma_pmd_1g == IXGBE_AUTOC_1G_SFI)) {
|
|
autoc &= ~IXGBE_AUTOC_LMS_MASK;
|
|
if (autoneg)
|
|
autoc |= IXGBE_AUTOC_LMS_1G_AN;
|
|
else
|
|
autoc |= IXGBE_AUTOC_LMS_1G_LINK_NO_AN;
|
|
}
|
|
}
|
|
|
|
if (autoc != current_autoc) {
|
|
/* Restart link */
|
|
status = hw->mac.ops.prot_autoc_write(hw, autoc, false);
|
|
if (status)
|
|
return status;
|
|
|
|
/* Only poll for autoneg to complete if specified to do so */
|
|
if (autoneg_wait_to_complete) {
|
|
if (link_mode == IXGBE_AUTOC_LMS_KX4_KX_KR ||
|
|
link_mode == IXGBE_AUTOC_LMS_KX4_KX_KR_1G_AN ||
|
|
link_mode == IXGBE_AUTOC_LMS_KX4_KX_KR_SGMII) {
|
|
links_reg = 0; /*Just in case Autoneg time=0*/
|
|
for (i = 0; i < IXGBE_AUTO_NEG_TIME; i++) {
|
|
links_reg =
|
|
IXGBE_READ_REG(hw, IXGBE_LINKS);
|
|
if (links_reg & IXGBE_LINKS_KX_AN_COMP)
|
|
break;
|
|
msleep(100);
|
|
}
|
|
if (!(links_reg & IXGBE_LINKS_KX_AN_COMP)) {
|
|
status =
|
|
IXGBE_ERR_AUTONEG_NOT_COMPLETE;
|
|
hw_dbg(hw, "Autoneg did not complete.\n");
|
|
}
|
|
}
|
|
}
|
|
|
|
/* Add delay to filter out noises during initial link setup */
|
|
msleep(50);
|
|
}
|
|
|
|
return status;
|
|
}
|
|
|
|
/**
|
|
* ixgbe_setup_copper_link_82599 - Set the PHY autoneg advertised field
|
|
* @hw: pointer to hardware structure
|
|
* @speed: new link speed
|
|
* @autoneg_wait_to_complete: true if waiting is needed to complete
|
|
*
|
|
* Restarts link on PHY and MAC based on settings passed in.
|
|
**/
|
|
static s32 ixgbe_setup_copper_link_82599(struct ixgbe_hw *hw,
|
|
ixgbe_link_speed speed,
|
|
bool autoneg_wait_to_complete)
|
|
{
|
|
s32 status;
|
|
|
|
/* Setup the PHY according to input speed */
|
|
status = hw->phy.ops.setup_link_speed(hw, speed,
|
|
autoneg_wait_to_complete);
|
|
/* Set up MAC */
|
|
ixgbe_start_mac_link_82599(hw, autoneg_wait_to_complete);
|
|
|
|
return status;
|
|
}
|
|
|
|
/**
|
|
* ixgbe_reset_hw_82599 - Perform hardware reset
|
|
* @hw: pointer to hardware structure
|
|
*
|
|
* Resets the hardware by resetting the transmit and receive units, masks
|
|
* and clears all interrupts, perform a PHY reset, and perform a link (MAC)
|
|
* reset.
|
|
**/
|
|
static s32 ixgbe_reset_hw_82599(struct ixgbe_hw *hw)
|
|
{
|
|
ixgbe_link_speed link_speed;
|
|
s32 status;
|
|
u32 ctrl, i, autoc, autoc2;
|
|
u32 curr_lms;
|
|
bool link_up = false;
|
|
|
|
/* Call adapter stop to disable tx/rx and clear interrupts */
|
|
status = hw->mac.ops.stop_adapter(hw);
|
|
if (status)
|
|
return status;
|
|
|
|
/* flush pending Tx transactions */
|
|
ixgbe_clear_tx_pending(hw);
|
|
|
|
/* PHY ops must be identified and initialized prior to reset */
|
|
|
|
/* Identify PHY and related function pointers */
|
|
status = hw->phy.ops.init(hw);
|
|
|
|
if (status == IXGBE_ERR_SFP_NOT_SUPPORTED)
|
|
return status;
|
|
|
|
/* Setup SFP module if there is one present. */
|
|
if (hw->phy.sfp_setup_needed) {
|
|
status = hw->mac.ops.setup_sfp(hw);
|
|
hw->phy.sfp_setup_needed = false;
|
|
}
|
|
|
|
if (status == IXGBE_ERR_SFP_NOT_SUPPORTED)
|
|
return status;
|
|
|
|
/* Reset PHY */
|
|
if (hw->phy.reset_disable == false && hw->phy.ops.reset != NULL)
|
|
hw->phy.ops.reset(hw);
|
|
|
|
/* remember AUTOC from before we reset */
|
|
curr_lms = IXGBE_READ_REG(hw, IXGBE_AUTOC) & IXGBE_AUTOC_LMS_MASK;
|
|
|
|
mac_reset_top:
|
|
/*
|
|
* Issue global reset to the MAC. Needs to be SW reset if link is up.
|
|
* If link reset is used when link is up, it might reset the PHY when
|
|
* mng is using it. If link is down or the flag to force full link
|
|
* reset is set, then perform link reset.
|
|
*/
|
|
ctrl = IXGBE_CTRL_LNK_RST;
|
|
if (!hw->force_full_reset) {
|
|
hw->mac.ops.check_link(hw, &link_speed, &link_up, false);
|
|
if (link_up)
|
|
ctrl = IXGBE_CTRL_RST;
|
|
}
|
|
|
|
ctrl |= IXGBE_READ_REG(hw, IXGBE_CTRL);
|
|
IXGBE_WRITE_REG(hw, IXGBE_CTRL, ctrl);
|
|
IXGBE_WRITE_FLUSH(hw);
|
|
usleep_range(1000, 1200);
|
|
|
|
/* Poll for reset bit to self-clear indicating reset is complete */
|
|
for (i = 0; i < 10; i++) {
|
|
ctrl = IXGBE_READ_REG(hw, IXGBE_CTRL);
|
|
if (!(ctrl & IXGBE_CTRL_RST_MASK))
|
|
break;
|
|
udelay(1);
|
|
}
|
|
|
|
if (ctrl & IXGBE_CTRL_RST_MASK) {
|
|
status = IXGBE_ERR_RESET_FAILED;
|
|
hw_dbg(hw, "Reset polling failed to complete.\n");
|
|
}
|
|
|
|
msleep(50);
|
|
|
|
/*
|
|
* Double resets are required for recovery from certain error
|
|
* conditions. Between resets, it is necessary to stall to allow time
|
|
* for any pending HW events to complete.
|
|
*/
|
|
if (hw->mac.flags & IXGBE_FLAGS_DOUBLE_RESET_REQUIRED) {
|
|
hw->mac.flags &= ~IXGBE_FLAGS_DOUBLE_RESET_REQUIRED;
|
|
goto mac_reset_top;
|
|
}
|
|
|
|
/*
|
|
* Store the original AUTOC/AUTOC2 values if they have not been
|
|
* stored off yet. Otherwise restore the stored original
|
|
* values since the reset operation sets back to defaults.
|
|
*/
|
|
autoc = IXGBE_READ_REG(hw, IXGBE_AUTOC);
|
|
autoc2 = IXGBE_READ_REG(hw, IXGBE_AUTOC2);
|
|
|
|
/* Enable link if disabled in NVM */
|
|
if (autoc2 & IXGBE_AUTOC2_LINK_DISABLE_MASK) {
|
|
autoc2 &= ~IXGBE_AUTOC2_LINK_DISABLE_MASK;
|
|
IXGBE_WRITE_REG(hw, IXGBE_AUTOC2, autoc2);
|
|
IXGBE_WRITE_FLUSH(hw);
|
|
}
|
|
|
|
if (hw->mac.orig_link_settings_stored == false) {
|
|
hw->mac.orig_autoc = autoc;
|
|
hw->mac.orig_autoc2 = autoc2;
|
|
hw->mac.orig_link_settings_stored = true;
|
|
} else {
|
|
|
|
/* If MNG FW is running on a multi-speed device that
|
|
* doesn't autoneg with out driver support we need to
|
|
* leave LMS in the state it was before we MAC reset.
|
|
* Likewise if we support WoL we don't want change the
|
|
* LMS state either.
|
|
*/
|
|
if ((hw->phy.multispeed_fiber && ixgbe_mng_enabled(hw)) ||
|
|
hw->wol_enabled)
|
|
hw->mac.orig_autoc =
|
|
(hw->mac.orig_autoc & ~IXGBE_AUTOC_LMS_MASK) |
|
|
curr_lms;
|
|
|
|
if (autoc != hw->mac.orig_autoc) {
|
|
status = hw->mac.ops.prot_autoc_write(hw,
|
|
hw->mac.orig_autoc,
|
|
false);
|
|
if (status)
|
|
return status;
|
|
}
|
|
|
|
if ((autoc2 & IXGBE_AUTOC2_UPPER_MASK) !=
|
|
(hw->mac.orig_autoc2 & IXGBE_AUTOC2_UPPER_MASK)) {
|
|
autoc2 &= ~IXGBE_AUTOC2_UPPER_MASK;
|
|
autoc2 |= (hw->mac.orig_autoc2 &
|
|
IXGBE_AUTOC2_UPPER_MASK);
|
|
IXGBE_WRITE_REG(hw, IXGBE_AUTOC2, autoc2);
|
|
}
|
|
}
|
|
|
|
/* Store the permanent mac address */
|
|
hw->mac.ops.get_mac_addr(hw, hw->mac.perm_addr);
|
|
|
|
/*
|
|
* Store MAC address from RAR0, clear receive address registers, and
|
|
* clear the multicast table. Also reset num_rar_entries to 128,
|
|
* since we modify this value when programming the SAN MAC address.
|
|
*/
|
|
hw->mac.num_rar_entries = 128;
|
|
hw->mac.ops.init_rx_addrs(hw);
|
|
|
|
/* Store the permanent SAN mac address */
|
|
hw->mac.ops.get_san_mac_addr(hw, hw->mac.san_addr);
|
|
|
|
/* Add the SAN MAC address to the RAR only if it's a valid address */
|
|
if (is_valid_ether_addr(hw->mac.san_addr)) {
|
|
/* Save the SAN MAC RAR index */
|
|
hw->mac.san_mac_rar_index = hw->mac.num_rar_entries - 1;
|
|
|
|
hw->mac.ops.set_rar(hw, hw->mac.san_mac_rar_index,
|
|
hw->mac.san_addr, 0, IXGBE_RAH_AV);
|
|
|
|
/* clear VMDq pool/queue selection for this RAR */
|
|
hw->mac.ops.clear_vmdq(hw, hw->mac.san_mac_rar_index,
|
|
IXGBE_CLEAR_VMDQ_ALL);
|
|
|
|
/* Reserve the last RAR for the SAN MAC address */
|
|
hw->mac.num_rar_entries--;
|
|
}
|
|
|
|
/* Store the alternative WWNN/WWPN prefix */
|
|
hw->mac.ops.get_wwn_prefix(hw, &hw->mac.wwnn_prefix,
|
|
&hw->mac.wwpn_prefix);
|
|
|
|
return status;
|
|
}
|
|
|
|
/**
|
|
* ixgbe_fdir_check_cmd_complete - poll to check whether FDIRCMD is complete
|
|
* @hw: pointer to hardware structure
|
|
* @fdircmd: current value of FDIRCMD register
|
|
*/
|
|
static s32 ixgbe_fdir_check_cmd_complete(struct ixgbe_hw *hw, u32 *fdircmd)
|
|
{
|
|
int i;
|
|
|
|
for (i = 0; i < IXGBE_FDIRCMD_CMD_POLL; i++) {
|
|
*fdircmd = IXGBE_READ_REG(hw, IXGBE_FDIRCMD);
|
|
if (!(*fdircmd & IXGBE_FDIRCMD_CMD_MASK))
|
|
return 0;
|
|
udelay(10);
|
|
}
|
|
|
|
return IXGBE_ERR_FDIR_CMD_INCOMPLETE;
|
|
}
|
|
|
|
/**
|
|
* ixgbe_reinit_fdir_tables_82599 - Reinitialize Flow Director tables.
|
|
* @hw: pointer to hardware structure
|
|
**/
|
|
s32 ixgbe_reinit_fdir_tables_82599(struct ixgbe_hw *hw)
|
|
{
|
|
int i;
|
|
u32 fdirctrl = IXGBE_READ_REG(hw, IXGBE_FDIRCTRL);
|
|
u32 fdircmd;
|
|
s32 err;
|
|
|
|
fdirctrl &= ~IXGBE_FDIRCTRL_INIT_DONE;
|
|
|
|
/*
|
|
* Before starting reinitialization process,
|
|
* FDIRCMD.CMD must be zero.
|
|
*/
|
|
err = ixgbe_fdir_check_cmd_complete(hw, &fdircmd);
|
|
if (err) {
|
|
hw_dbg(hw, "Flow Director previous command did not complete, aborting table re-initialization.\n");
|
|
return err;
|
|
}
|
|
|
|
IXGBE_WRITE_REG(hw, IXGBE_FDIRFREE, 0);
|
|
IXGBE_WRITE_FLUSH(hw);
|
|
/*
|
|
* 82599 adapters flow director init flow cannot be restarted,
|
|
* Workaround 82599 silicon errata by performing the following steps
|
|
* before re-writing the FDIRCTRL control register with the same value.
|
|
* - write 1 to bit 8 of FDIRCMD register &
|
|
* - write 0 to bit 8 of FDIRCMD register
|
|
*/
|
|
IXGBE_WRITE_REG(hw, IXGBE_FDIRCMD,
|
|
(IXGBE_READ_REG(hw, IXGBE_FDIRCMD) |
|
|
IXGBE_FDIRCMD_CLEARHT));
|
|
IXGBE_WRITE_FLUSH(hw);
|
|
IXGBE_WRITE_REG(hw, IXGBE_FDIRCMD,
|
|
(IXGBE_READ_REG(hw, IXGBE_FDIRCMD) &
|
|
~IXGBE_FDIRCMD_CLEARHT));
|
|
IXGBE_WRITE_FLUSH(hw);
|
|
/*
|
|
* Clear FDIR Hash register to clear any leftover hashes
|
|
* waiting to be programmed.
|
|
*/
|
|
IXGBE_WRITE_REG(hw, IXGBE_FDIRHASH, 0x00);
|
|
IXGBE_WRITE_FLUSH(hw);
|
|
|
|
IXGBE_WRITE_REG(hw, IXGBE_FDIRCTRL, fdirctrl);
|
|
IXGBE_WRITE_FLUSH(hw);
|
|
|
|
/* Poll init-done after we write FDIRCTRL register */
|
|
for (i = 0; i < IXGBE_FDIR_INIT_DONE_POLL; i++) {
|
|
if (IXGBE_READ_REG(hw, IXGBE_FDIRCTRL) &
|
|
IXGBE_FDIRCTRL_INIT_DONE)
|
|
break;
|
|
usleep_range(1000, 2000);
|
|
}
|
|
if (i >= IXGBE_FDIR_INIT_DONE_POLL) {
|
|
hw_dbg(hw, "Flow Director Signature poll time exceeded!\n");
|
|
return IXGBE_ERR_FDIR_REINIT_FAILED;
|
|
}
|
|
|
|
/* Clear FDIR statistics registers (read to clear) */
|
|
IXGBE_READ_REG(hw, IXGBE_FDIRUSTAT);
|
|
IXGBE_READ_REG(hw, IXGBE_FDIRFSTAT);
|
|
IXGBE_READ_REG(hw, IXGBE_FDIRMATCH);
|
|
IXGBE_READ_REG(hw, IXGBE_FDIRMISS);
|
|
IXGBE_READ_REG(hw, IXGBE_FDIRLEN);
|
|
|
|
return 0;
|
|
}
|
|
|
|
/**
|
|
* ixgbe_fdir_enable_82599 - Initialize Flow Director control registers
|
|
* @hw: pointer to hardware structure
|
|
* @fdirctrl: value to write to flow director control register
|
|
**/
|
|
static void ixgbe_fdir_enable_82599(struct ixgbe_hw *hw, u32 fdirctrl)
|
|
{
|
|
int i;
|
|
|
|
/* Prime the keys for hashing */
|
|
IXGBE_WRITE_REG(hw, IXGBE_FDIRHKEY, IXGBE_ATR_BUCKET_HASH_KEY);
|
|
IXGBE_WRITE_REG(hw, IXGBE_FDIRSKEY, IXGBE_ATR_SIGNATURE_HASH_KEY);
|
|
|
|
/*
|
|
* Poll init-done after we write the register. Estimated times:
|
|
* 10G: PBALLOC = 11b, timing is 60us
|
|
* 1G: PBALLOC = 11b, timing is 600us
|
|
* 100M: PBALLOC = 11b, timing is 6ms
|
|
*
|
|
* Multiple these timings by 4 if under full Rx load
|
|
*
|
|
* So we'll poll for IXGBE_FDIR_INIT_DONE_POLL times, sleeping for
|
|
* 1 msec per poll time. If we're at line rate and drop to 100M, then
|
|
* this might not finish in our poll time, but we can live with that
|
|
* for now.
|
|
*/
|
|
IXGBE_WRITE_REG(hw, IXGBE_FDIRCTRL, fdirctrl);
|
|
IXGBE_WRITE_FLUSH(hw);
|
|
for (i = 0; i < IXGBE_FDIR_INIT_DONE_POLL; i++) {
|
|
if (IXGBE_READ_REG(hw, IXGBE_FDIRCTRL) &
|
|
IXGBE_FDIRCTRL_INIT_DONE)
|
|
break;
|
|
usleep_range(1000, 2000);
|
|
}
|
|
|
|
if (i >= IXGBE_FDIR_INIT_DONE_POLL)
|
|
hw_dbg(hw, "Flow Director poll time exceeded!\n");
|
|
}
|
|
|
|
/**
|
|
* ixgbe_init_fdir_signature_82599 - Initialize Flow Director signature filters
|
|
* @hw: pointer to hardware structure
|
|
* @fdirctrl: value to write to flow director control register, initially
|
|
* contains just the value of the Rx packet buffer allocation
|
|
**/
|
|
s32 ixgbe_init_fdir_signature_82599(struct ixgbe_hw *hw, u32 fdirctrl)
|
|
{
|
|
/*
|
|
* Continue setup of fdirctrl register bits:
|
|
* Move the flexible bytes to use the ethertype - shift 6 words
|
|
* Set the maximum length per hash bucket to 0xA filters
|
|
* Send interrupt when 64 filters are left
|
|
*/
|
|
fdirctrl |= (0x6 << IXGBE_FDIRCTRL_FLEX_SHIFT) |
|
|
(0xA << IXGBE_FDIRCTRL_MAX_LENGTH_SHIFT) |
|
|
(4 << IXGBE_FDIRCTRL_FULL_THRESH_SHIFT);
|
|
|
|
/* write hashes and fdirctrl register, poll for completion */
|
|
ixgbe_fdir_enable_82599(hw, fdirctrl);
|
|
|
|
return 0;
|
|
}
|
|
|
|
/**
|
|
* ixgbe_init_fdir_perfect_82599 - Initialize Flow Director perfect filters
|
|
* @hw: pointer to hardware structure
|
|
* @fdirctrl: value to write to flow director control register, initially
|
|
* contains just the value of the Rx packet buffer allocation
|
|
**/
|
|
s32 ixgbe_init_fdir_perfect_82599(struct ixgbe_hw *hw, u32 fdirctrl)
|
|
{
|
|
/*
|
|
* Continue setup of fdirctrl register bits:
|
|
* Turn perfect match filtering on
|
|
* Initialize the drop queue
|
|
* Move the flexible bytes to use the ethertype - shift 6 words
|
|
* Set the maximum length per hash bucket to 0xA filters
|
|
* Send interrupt when 64 (0x4 * 16) filters are left
|
|
*/
|
|
fdirctrl |= IXGBE_FDIRCTRL_PERFECT_MATCH |
|
|
(IXGBE_FDIR_DROP_QUEUE << IXGBE_FDIRCTRL_DROP_Q_SHIFT) |
|
|
(0x6 << IXGBE_FDIRCTRL_FLEX_SHIFT) |
|
|
(0xA << IXGBE_FDIRCTRL_MAX_LENGTH_SHIFT) |
|
|
(4 << IXGBE_FDIRCTRL_FULL_THRESH_SHIFT);
|
|
|
|
/* write hashes and fdirctrl register, poll for completion */
|
|
ixgbe_fdir_enable_82599(hw, fdirctrl);
|
|
|
|
return 0;
|
|
}
|
|
|
|
/*
|
|
* These defines allow us to quickly generate all of the necessary instructions
|
|
* in the function below by simply calling out IXGBE_COMPUTE_SIG_HASH_ITERATION
|
|
* for values 0 through 15
|
|
*/
|
|
#define IXGBE_ATR_COMMON_HASH_KEY \
|
|
(IXGBE_ATR_BUCKET_HASH_KEY & IXGBE_ATR_SIGNATURE_HASH_KEY)
|
|
#define IXGBE_COMPUTE_SIG_HASH_ITERATION(_n) \
|
|
do { \
|
|
u32 n = (_n); \
|
|
if (IXGBE_ATR_COMMON_HASH_KEY & BIT(n)) \
|
|
common_hash ^= lo_hash_dword >> n; \
|
|
else if (IXGBE_ATR_BUCKET_HASH_KEY & BIT(n)) \
|
|
bucket_hash ^= lo_hash_dword >> n; \
|
|
else if (IXGBE_ATR_SIGNATURE_HASH_KEY & BIT(n)) \
|
|
sig_hash ^= lo_hash_dword << (16 - n); \
|
|
if (IXGBE_ATR_COMMON_HASH_KEY & BIT(n + 16)) \
|
|
common_hash ^= hi_hash_dword >> n; \
|
|
else if (IXGBE_ATR_BUCKET_HASH_KEY & BIT(n + 16)) \
|
|
bucket_hash ^= hi_hash_dword >> n; \
|
|
else if (IXGBE_ATR_SIGNATURE_HASH_KEY & BIT(n + 16)) \
|
|
sig_hash ^= hi_hash_dword << (16 - n); \
|
|
} while (0)
|
|
|
|
/**
|
|
* ixgbe_atr_compute_sig_hash_82599 - Compute the signature hash
|
|
* @input: input bitstream to compute the hash on
|
|
* @common: compressed common input dword
|
|
*
|
|
* This function is almost identical to the function above but contains
|
|
* several optimizations such as unwinding all of the loops, letting the
|
|
* compiler work out all of the conditional ifs since the keys are static
|
|
* defines, and computing two keys at once since the hashed dword stream
|
|
* will be the same for both keys.
|
|
**/
|
|
static u32 ixgbe_atr_compute_sig_hash_82599(union ixgbe_atr_hash_dword input,
|
|
union ixgbe_atr_hash_dword common)
|
|
{
|
|
u32 hi_hash_dword, lo_hash_dword, flow_vm_vlan;
|
|
u32 sig_hash = 0, bucket_hash = 0, common_hash = 0;
|
|
|
|
/* record the flow_vm_vlan bits as they are a key part to the hash */
|
|
flow_vm_vlan = ntohl(input.dword);
|
|
|
|
/* generate common hash dword */
|
|
hi_hash_dword = ntohl(common.dword);
|
|
|
|
/* low dword is word swapped version of common */
|
|
lo_hash_dword = (hi_hash_dword >> 16) | (hi_hash_dword << 16);
|
|
|
|
/* apply flow ID/VM pool/VLAN ID bits to hash words */
|
|
hi_hash_dword ^= flow_vm_vlan ^ (flow_vm_vlan >> 16);
|
|
|
|
/* Process bits 0 and 16 */
|
|
IXGBE_COMPUTE_SIG_HASH_ITERATION(0);
|
|
|
|
/*
|
|
* apply flow ID/VM pool/VLAN ID bits to lo hash dword, we had to
|
|
* delay this because bit 0 of the stream should not be processed
|
|
* so we do not add the vlan until after bit 0 was processed
|
|
*/
|
|
lo_hash_dword ^= flow_vm_vlan ^ (flow_vm_vlan << 16);
|
|
|
|
/* Process remaining 30 bit of the key */
|
|
IXGBE_COMPUTE_SIG_HASH_ITERATION(1);
|
|
IXGBE_COMPUTE_SIG_HASH_ITERATION(2);
|
|
IXGBE_COMPUTE_SIG_HASH_ITERATION(3);
|
|
IXGBE_COMPUTE_SIG_HASH_ITERATION(4);
|
|
IXGBE_COMPUTE_SIG_HASH_ITERATION(5);
|
|
IXGBE_COMPUTE_SIG_HASH_ITERATION(6);
|
|
IXGBE_COMPUTE_SIG_HASH_ITERATION(7);
|
|
IXGBE_COMPUTE_SIG_HASH_ITERATION(8);
|
|
IXGBE_COMPUTE_SIG_HASH_ITERATION(9);
|
|
IXGBE_COMPUTE_SIG_HASH_ITERATION(10);
|
|
IXGBE_COMPUTE_SIG_HASH_ITERATION(11);
|
|
IXGBE_COMPUTE_SIG_HASH_ITERATION(12);
|
|
IXGBE_COMPUTE_SIG_HASH_ITERATION(13);
|
|
IXGBE_COMPUTE_SIG_HASH_ITERATION(14);
|
|
IXGBE_COMPUTE_SIG_HASH_ITERATION(15);
|
|
|
|
/* combine common_hash result with signature and bucket hashes */
|
|
bucket_hash ^= common_hash;
|
|
bucket_hash &= IXGBE_ATR_HASH_MASK;
|
|
|
|
sig_hash ^= common_hash << 16;
|
|
sig_hash &= IXGBE_ATR_HASH_MASK << 16;
|
|
|
|
/* return completed signature hash */
|
|
return sig_hash ^ bucket_hash;
|
|
}
|
|
|
|
/**
|
|
* ixgbe_atr_add_signature_filter_82599 - Adds a signature hash filter
|
|
* @hw: pointer to hardware structure
|
|
* @input: unique input dword
|
|
* @common: compressed common input dword
|
|
* @queue: queue index to direct traffic to
|
|
*
|
|
* Note that the tunnel bit in input must not be set when the hardware
|
|
* tunneling support does not exist.
|
|
**/
|
|
s32 ixgbe_fdir_add_signature_filter_82599(struct ixgbe_hw *hw,
|
|
union ixgbe_atr_hash_dword input,
|
|
union ixgbe_atr_hash_dword common,
|
|
u8 queue)
|
|
{
|
|
u64 fdirhashcmd;
|
|
u8 flow_type;
|
|
bool tunnel;
|
|
u32 fdircmd;
|
|
|
|
/*
|
|
* Get the flow_type in order to program FDIRCMD properly
|
|
* lowest 2 bits are FDIRCMD.L4TYPE, third lowest bit is FDIRCMD.IPV6
|
|
*/
|
|
tunnel = !!(input.formatted.flow_type & IXGBE_ATR_L4TYPE_TUNNEL_MASK);
|
|
flow_type = input.formatted.flow_type &
|
|
(IXGBE_ATR_L4TYPE_TUNNEL_MASK - 1);
|
|
switch (flow_type) {
|
|
case IXGBE_ATR_FLOW_TYPE_TCPV4:
|
|
case IXGBE_ATR_FLOW_TYPE_UDPV4:
|
|
case IXGBE_ATR_FLOW_TYPE_SCTPV4:
|
|
case IXGBE_ATR_FLOW_TYPE_TCPV6:
|
|
case IXGBE_ATR_FLOW_TYPE_UDPV6:
|
|
case IXGBE_ATR_FLOW_TYPE_SCTPV6:
|
|
break;
|
|
default:
|
|
hw_dbg(hw, " Error on flow type input\n");
|
|
return IXGBE_ERR_CONFIG;
|
|
}
|
|
|
|
/* configure FDIRCMD register */
|
|
fdircmd = IXGBE_FDIRCMD_CMD_ADD_FLOW | IXGBE_FDIRCMD_FILTER_UPDATE |
|
|
IXGBE_FDIRCMD_LAST | IXGBE_FDIRCMD_QUEUE_EN;
|
|
fdircmd |= (u32)flow_type << IXGBE_FDIRCMD_FLOW_TYPE_SHIFT;
|
|
fdircmd |= (u32)queue << IXGBE_FDIRCMD_RX_QUEUE_SHIFT;
|
|
if (tunnel)
|
|
fdircmd |= IXGBE_FDIRCMD_TUNNEL_FILTER;
|
|
|
|
/*
|
|
* The lower 32-bits of fdirhashcmd is for FDIRHASH, the upper 32-bits
|
|
* is for FDIRCMD. Then do a 64-bit register write from FDIRHASH.
|
|
*/
|
|
fdirhashcmd = (u64)fdircmd << 32;
|
|
fdirhashcmd |= ixgbe_atr_compute_sig_hash_82599(input, common);
|
|
IXGBE_WRITE_REG64(hw, IXGBE_FDIRHASH, fdirhashcmd);
|
|
|
|
hw_dbg(hw, "Tx Queue=%x hash=%x\n", queue, (u32)fdirhashcmd);
|
|
|
|
return 0;
|
|
}
|
|
|
|
#define IXGBE_COMPUTE_BKT_HASH_ITERATION(_n) \
|
|
do { \
|
|
u32 n = (_n); \
|
|
if (IXGBE_ATR_BUCKET_HASH_KEY & BIT(n)) \
|
|
bucket_hash ^= lo_hash_dword >> n; \
|
|
if (IXGBE_ATR_BUCKET_HASH_KEY & BIT(n + 16)) \
|
|
bucket_hash ^= hi_hash_dword >> n; \
|
|
} while (0)
|
|
|
|
/**
|
|
* ixgbe_atr_compute_perfect_hash_82599 - Compute the perfect filter hash
|
|
* @input: input bitstream to compute the hash on
|
|
* @input_mask: mask for the input bitstream
|
|
*
|
|
* This function serves two main purposes. First it applies the input_mask
|
|
* to the atr_input resulting in a cleaned up atr_input data stream.
|
|
* Secondly it computes the hash and stores it in the bkt_hash field at
|
|
* the end of the input byte stream. This way it will be available for
|
|
* future use without needing to recompute the hash.
|
|
**/
|
|
void ixgbe_atr_compute_perfect_hash_82599(union ixgbe_atr_input *input,
|
|
union ixgbe_atr_input *input_mask)
|
|
{
|
|
|
|
u32 hi_hash_dword, lo_hash_dword, flow_vm_vlan;
|
|
u32 bucket_hash = 0, hi_dword = 0;
|
|
int i;
|
|
|
|
/* Apply masks to input data */
|
|
for (i = 0; i <= 10; i++)
|
|
input->dword_stream[i] &= input_mask->dword_stream[i];
|
|
|
|
/* record the flow_vm_vlan bits as they are a key part to the hash */
|
|
flow_vm_vlan = ntohl(input->dword_stream[0]);
|
|
|
|
/* generate common hash dword */
|
|
for (i = 1; i <= 10; i++)
|
|
hi_dword ^= input->dword_stream[i];
|
|
hi_hash_dword = ntohl(hi_dword);
|
|
|
|
/* low dword is word swapped version of common */
|
|
lo_hash_dword = (hi_hash_dword >> 16) | (hi_hash_dword << 16);
|
|
|
|
/* apply flow ID/VM pool/VLAN ID bits to hash words */
|
|
hi_hash_dword ^= flow_vm_vlan ^ (flow_vm_vlan >> 16);
|
|
|
|
/* Process bits 0 and 16 */
|
|
IXGBE_COMPUTE_BKT_HASH_ITERATION(0);
|
|
|
|
/*
|
|
* apply flow ID/VM pool/VLAN ID bits to lo hash dword, we had to
|
|
* delay this because bit 0 of the stream should not be processed
|
|
* so we do not add the vlan until after bit 0 was processed
|
|
*/
|
|
lo_hash_dword ^= flow_vm_vlan ^ (flow_vm_vlan << 16);
|
|
|
|
/* Process remaining 30 bit of the key */
|
|
for (i = 1; i <= 15; i++)
|
|
IXGBE_COMPUTE_BKT_HASH_ITERATION(i);
|
|
|
|
/*
|
|
* Limit hash to 13 bits since max bucket count is 8K.
|
|
* Store result at the end of the input stream.
|
|
*/
|
|
input->formatted.bkt_hash = bucket_hash & 0x1FFF;
|
|
}
|
|
|
|
/**
|
|
* ixgbe_get_fdirtcpm_82599 - generate a tcp port from atr_input_masks
|
|
* @input_mask: mask to be bit swapped
|
|
*
|
|
* The source and destination port masks for flow director are bit swapped
|
|
* in that bit 15 effects bit 0, 14 effects 1, 13, 2 etc. In order to
|
|
* generate a correctly swapped value we need to bit swap the mask and that
|
|
* is what is accomplished by this function.
|
|
**/
|
|
static u32 ixgbe_get_fdirtcpm_82599(union ixgbe_atr_input *input_mask)
|
|
{
|
|
u32 mask = ntohs(input_mask->formatted.dst_port);
|
|
|
|
mask <<= IXGBE_FDIRTCPM_DPORTM_SHIFT;
|
|
mask |= ntohs(input_mask->formatted.src_port);
|
|
mask = ((mask & 0x55555555) << 1) | ((mask & 0xAAAAAAAA) >> 1);
|
|
mask = ((mask & 0x33333333) << 2) | ((mask & 0xCCCCCCCC) >> 2);
|
|
mask = ((mask & 0x0F0F0F0F) << 4) | ((mask & 0xF0F0F0F0) >> 4);
|
|
return ((mask & 0x00FF00FF) << 8) | ((mask & 0xFF00FF00) >> 8);
|
|
}
|
|
|
|
/*
|
|
* These two macros are meant to address the fact that we have registers
|
|
* that are either all or in part big-endian. As a result on big-endian
|
|
* systems we will end up byte swapping the value to little-endian before
|
|
* it is byte swapped again and written to the hardware in the original
|
|
* big-endian format.
|
|
*/
|
|
#define IXGBE_STORE_AS_BE32(_value) \
|
|
(((u32)(_value) >> 24) | (((u32)(_value) & 0x00FF0000) >> 8) | \
|
|
(((u32)(_value) & 0x0000FF00) << 8) | ((u32)(_value) << 24))
|
|
|
|
#define IXGBE_WRITE_REG_BE32(a, reg, value) \
|
|
IXGBE_WRITE_REG((a), (reg), IXGBE_STORE_AS_BE32(ntohl(value)))
|
|
|
|
#define IXGBE_STORE_AS_BE16(_value) \
|
|
ntohs(((u16)(_value) >> 8) | ((u16)(_value) << 8))
|
|
|
|
s32 ixgbe_fdir_set_input_mask_82599(struct ixgbe_hw *hw,
|
|
union ixgbe_atr_input *input_mask)
|
|
{
|
|
/* mask IPv6 since it is currently not supported */
|
|
u32 fdirm = IXGBE_FDIRM_DIPv6;
|
|
u32 fdirtcpm;
|
|
|
|
/*
|
|
* Program the relevant mask registers. If src/dst_port or src/dst_addr
|
|
* are zero, then assume a full mask for that field. Also assume that
|
|
* a VLAN of 0 is unspecified, so mask that out as well. L4type
|
|
* cannot be masked out in this implementation.
|
|
*
|
|
* This also assumes IPv4 only. IPv6 masking isn't supported at this
|
|
* point in time.
|
|
*/
|
|
|
|
/* verify bucket hash is cleared on hash generation */
|
|
if (input_mask->formatted.bkt_hash)
|
|
hw_dbg(hw, " bucket hash should always be 0 in mask\n");
|
|
|
|
/* Program FDIRM and verify partial masks */
|
|
switch (input_mask->formatted.vm_pool & 0x7F) {
|
|
case 0x0:
|
|
fdirm |= IXGBE_FDIRM_POOL;
|
|
case 0x7F:
|
|
break;
|
|
default:
|
|
hw_dbg(hw, " Error on vm pool mask\n");
|
|
return IXGBE_ERR_CONFIG;
|
|
}
|
|
|
|
switch (input_mask->formatted.flow_type & IXGBE_ATR_L4TYPE_MASK) {
|
|
case 0x0:
|
|
fdirm |= IXGBE_FDIRM_L4P;
|
|
if (input_mask->formatted.dst_port ||
|
|
input_mask->formatted.src_port) {
|
|
hw_dbg(hw, " Error on src/dst port mask\n");
|
|
return IXGBE_ERR_CONFIG;
|
|
}
|
|
case IXGBE_ATR_L4TYPE_MASK:
|
|
break;
|
|
default:
|
|
hw_dbg(hw, " Error on flow type mask\n");
|
|
return IXGBE_ERR_CONFIG;
|
|
}
|
|
|
|
switch (ntohs(input_mask->formatted.vlan_id) & 0xEFFF) {
|
|
case 0x0000:
|
|
/* mask VLAN ID */
|
|
fdirm |= IXGBE_FDIRM_VLANID;
|
|
/* fall through */
|
|
case 0x0FFF:
|
|
/* mask VLAN priority */
|
|
fdirm |= IXGBE_FDIRM_VLANP;
|
|
break;
|
|
case 0xE000:
|
|
/* mask VLAN ID only */
|
|
fdirm |= IXGBE_FDIRM_VLANID;
|
|
/* fall through */
|
|
case 0xEFFF:
|
|
/* no VLAN fields masked */
|
|
break;
|
|
default:
|
|
hw_dbg(hw, " Error on VLAN mask\n");
|
|
return IXGBE_ERR_CONFIG;
|
|
}
|
|
|
|
switch (input_mask->formatted.flex_bytes & 0xFFFF) {
|
|
case 0x0000:
|
|
/* Mask Flex Bytes */
|
|
fdirm |= IXGBE_FDIRM_FLEX;
|
|
/* fall through */
|
|
case 0xFFFF:
|
|
break;
|
|
default:
|
|
hw_dbg(hw, " Error on flexible byte mask\n");
|
|
return IXGBE_ERR_CONFIG;
|
|
}
|
|
|
|
/* Now mask VM pool and destination IPv6 - bits 5 and 2 */
|
|
IXGBE_WRITE_REG(hw, IXGBE_FDIRM, fdirm);
|
|
|
|
/* store the TCP/UDP port masks, bit reversed from port layout */
|
|
fdirtcpm = ixgbe_get_fdirtcpm_82599(input_mask);
|
|
|
|
/* write both the same so that UDP and TCP use the same mask */
|
|
IXGBE_WRITE_REG(hw, IXGBE_FDIRTCPM, ~fdirtcpm);
|
|
IXGBE_WRITE_REG(hw, IXGBE_FDIRUDPM, ~fdirtcpm);
|
|
|
|
/* also use it for SCTP */
|
|
switch (hw->mac.type) {
|
|
case ixgbe_mac_X550:
|
|
case ixgbe_mac_X550EM_x:
|
|
case ixgbe_mac_x550em_a:
|
|
IXGBE_WRITE_REG(hw, IXGBE_FDIRSCTPM, ~fdirtcpm);
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
|
|
/* store source and destination IP masks (big-enian) */
|
|
IXGBE_WRITE_REG_BE32(hw, IXGBE_FDIRSIP4M,
|
|
~input_mask->formatted.src_ip[0]);
|
|
IXGBE_WRITE_REG_BE32(hw, IXGBE_FDIRDIP4M,
|
|
~input_mask->formatted.dst_ip[0]);
|
|
|
|
return 0;
|
|
}
|
|
|
|
s32 ixgbe_fdir_write_perfect_filter_82599(struct ixgbe_hw *hw,
|
|
union ixgbe_atr_input *input,
|
|
u16 soft_id, u8 queue)
|
|
{
|
|
u32 fdirport, fdirvlan, fdirhash, fdircmd;
|
|
s32 err;
|
|
|
|
/* currently IPv6 is not supported, must be programmed with 0 */
|
|
IXGBE_WRITE_REG_BE32(hw, IXGBE_FDIRSIPv6(0),
|
|
input->formatted.src_ip[0]);
|
|
IXGBE_WRITE_REG_BE32(hw, IXGBE_FDIRSIPv6(1),
|
|
input->formatted.src_ip[1]);
|
|
IXGBE_WRITE_REG_BE32(hw, IXGBE_FDIRSIPv6(2),
|
|
input->formatted.src_ip[2]);
|
|
|
|
/* record the source address (big-endian) */
|
|
IXGBE_WRITE_REG_BE32(hw, IXGBE_FDIRIPSA, input->formatted.src_ip[0]);
|
|
|
|
/* record the first 32 bits of the destination address (big-endian) */
|
|
IXGBE_WRITE_REG_BE32(hw, IXGBE_FDIRIPDA, input->formatted.dst_ip[0]);
|
|
|
|
/* record source and destination port (little-endian)*/
|
|
fdirport = ntohs(input->formatted.dst_port);
|
|
fdirport <<= IXGBE_FDIRPORT_DESTINATION_SHIFT;
|
|
fdirport |= ntohs(input->formatted.src_port);
|
|
IXGBE_WRITE_REG(hw, IXGBE_FDIRPORT, fdirport);
|
|
|
|
/* record vlan (little-endian) and flex_bytes(big-endian) */
|
|
fdirvlan = IXGBE_STORE_AS_BE16(input->formatted.flex_bytes);
|
|
fdirvlan <<= IXGBE_FDIRVLAN_FLEX_SHIFT;
|
|
fdirvlan |= ntohs(input->formatted.vlan_id);
|
|
IXGBE_WRITE_REG(hw, IXGBE_FDIRVLAN, fdirvlan);
|
|
|
|
/* configure FDIRHASH register */
|
|
fdirhash = input->formatted.bkt_hash;
|
|
fdirhash |= soft_id << IXGBE_FDIRHASH_SIG_SW_INDEX_SHIFT;
|
|
IXGBE_WRITE_REG(hw, IXGBE_FDIRHASH, fdirhash);
|
|
|
|
/*
|
|
* flush all previous writes to make certain registers are
|
|
* programmed prior to issuing the command
|
|
*/
|
|
IXGBE_WRITE_FLUSH(hw);
|
|
|
|
/* configure FDIRCMD register */
|
|
fdircmd = IXGBE_FDIRCMD_CMD_ADD_FLOW | IXGBE_FDIRCMD_FILTER_UPDATE |
|
|
IXGBE_FDIRCMD_LAST | IXGBE_FDIRCMD_QUEUE_EN;
|
|
if (queue == IXGBE_FDIR_DROP_QUEUE)
|
|
fdircmd |= IXGBE_FDIRCMD_DROP;
|
|
fdircmd |= input->formatted.flow_type << IXGBE_FDIRCMD_FLOW_TYPE_SHIFT;
|
|
fdircmd |= (u32)queue << IXGBE_FDIRCMD_RX_QUEUE_SHIFT;
|
|
fdircmd |= (u32)input->formatted.vm_pool << IXGBE_FDIRCMD_VT_POOL_SHIFT;
|
|
|
|
IXGBE_WRITE_REG(hw, IXGBE_FDIRCMD, fdircmd);
|
|
err = ixgbe_fdir_check_cmd_complete(hw, &fdircmd);
|
|
if (err) {
|
|
hw_dbg(hw, "Flow Director command did not complete!\n");
|
|
return err;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
s32 ixgbe_fdir_erase_perfect_filter_82599(struct ixgbe_hw *hw,
|
|
union ixgbe_atr_input *input,
|
|
u16 soft_id)
|
|
{
|
|
u32 fdirhash;
|
|
u32 fdircmd;
|
|
s32 err;
|
|
|
|
/* configure FDIRHASH register */
|
|
fdirhash = input->formatted.bkt_hash;
|
|
fdirhash |= soft_id << IXGBE_FDIRHASH_SIG_SW_INDEX_SHIFT;
|
|
IXGBE_WRITE_REG(hw, IXGBE_FDIRHASH, fdirhash);
|
|
|
|
/* flush hash to HW */
|
|
IXGBE_WRITE_FLUSH(hw);
|
|
|
|
/* Query if filter is present */
|
|
IXGBE_WRITE_REG(hw, IXGBE_FDIRCMD, IXGBE_FDIRCMD_CMD_QUERY_REM_FILT);
|
|
|
|
err = ixgbe_fdir_check_cmd_complete(hw, &fdircmd);
|
|
if (err) {
|
|
hw_dbg(hw, "Flow Director command did not complete!\n");
|
|
return err;
|
|
}
|
|
|
|
/* if filter exists in hardware then remove it */
|
|
if (fdircmd & IXGBE_FDIRCMD_FILTER_VALID) {
|
|
IXGBE_WRITE_REG(hw, IXGBE_FDIRHASH, fdirhash);
|
|
IXGBE_WRITE_FLUSH(hw);
|
|
IXGBE_WRITE_REG(hw, IXGBE_FDIRCMD,
|
|
IXGBE_FDIRCMD_CMD_REMOVE_FLOW);
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
/**
|
|
* ixgbe_read_analog_reg8_82599 - Reads 8 bit Omer analog register
|
|
* @hw: pointer to hardware structure
|
|
* @reg: analog register to read
|
|
* @val: read value
|
|
*
|
|
* Performs read operation to Omer analog register specified.
|
|
**/
|
|
static s32 ixgbe_read_analog_reg8_82599(struct ixgbe_hw *hw, u32 reg, u8 *val)
|
|
{
|
|
u32 core_ctl;
|
|
|
|
IXGBE_WRITE_REG(hw, IXGBE_CORECTL, IXGBE_CORECTL_WRITE_CMD |
|
|
(reg << 8));
|
|
IXGBE_WRITE_FLUSH(hw);
|
|
udelay(10);
|
|
core_ctl = IXGBE_READ_REG(hw, IXGBE_CORECTL);
|
|
*val = (u8)core_ctl;
|
|
|
|
return 0;
|
|
}
|
|
|
|
/**
|
|
* ixgbe_write_analog_reg8_82599 - Writes 8 bit Omer analog register
|
|
* @hw: pointer to hardware structure
|
|
* @reg: atlas register to write
|
|
* @val: value to write
|
|
*
|
|
* Performs write operation to Omer analog register specified.
|
|
**/
|
|
static s32 ixgbe_write_analog_reg8_82599(struct ixgbe_hw *hw, u32 reg, u8 val)
|
|
{
|
|
u32 core_ctl;
|
|
|
|
core_ctl = (reg << 8) | val;
|
|
IXGBE_WRITE_REG(hw, IXGBE_CORECTL, core_ctl);
|
|
IXGBE_WRITE_FLUSH(hw);
|
|
udelay(10);
|
|
|
|
return 0;
|
|
}
|
|
|
|
/**
|
|
* ixgbe_start_hw_82599 - Prepare hardware for Tx/Rx
|
|
* @hw: pointer to hardware structure
|
|
*
|
|
* Starts the hardware using the generic start_hw function
|
|
* and the generation start_hw function.
|
|
* Then performs revision-specific operations, if any.
|
|
**/
|
|
static s32 ixgbe_start_hw_82599(struct ixgbe_hw *hw)
|
|
{
|
|
s32 ret_val = 0;
|
|
|
|
ret_val = ixgbe_start_hw_generic(hw);
|
|
if (ret_val)
|
|
return ret_val;
|
|
|
|
ret_val = ixgbe_start_hw_gen2(hw);
|
|
if (ret_val)
|
|
return ret_val;
|
|
|
|
/* We need to run link autotry after the driver loads */
|
|
hw->mac.autotry_restart = true;
|
|
|
|
return ixgbe_verify_fw_version_82599(hw);
|
|
}
|
|
|
|
/**
|
|
* ixgbe_identify_phy_82599 - Get physical layer module
|
|
* @hw: pointer to hardware structure
|
|
*
|
|
* Determines the physical layer module found on the current adapter.
|
|
* If PHY already detected, maintains current PHY type in hw struct,
|
|
* otherwise executes the PHY detection routine.
|
|
**/
|
|
static s32 ixgbe_identify_phy_82599(struct ixgbe_hw *hw)
|
|
{
|
|
s32 status;
|
|
|
|
/* Detect PHY if not unknown - returns success if already detected. */
|
|
status = ixgbe_identify_phy_generic(hw);
|
|
if (status) {
|
|
/* 82599 10GBASE-T requires an external PHY */
|
|
if (hw->mac.ops.get_media_type(hw) == ixgbe_media_type_copper)
|
|
return status;
|
|
status = ixgbe_identify_module_generic(hw);
|
|
}
|
|
|
|
/* Set PHY type none if no PHY detected */
|
|
if (hw->phy.type == ixgbe_phy_unknown) {
|
|
hw->phy.type = ixgbe_phy_none;
|
|
status = 0;
|
|
}
|
|
|
|
/* Return error if SFP module has been detected but is not supported */
|
|
if (hw->phy.type == ixgbe_phy_sfp_unsupported)
|
|
return IXGBE_ERR_SFP_NOT_SUPPORTED;
|
|
|
|
return status;
|
|
}
|
|
|
|
/**
|
|
* ixgbe_enable_rx_dma_82599 - Enable the Rx DMA unit on 82599
|
|
* @hw: pointer to hardware structure
|
|
* @regval: register value to write to RXCTRL
|
|
*
|
|
* Enables the Rx DMA unit for 82599
|
|
**/
|
|
static s32 ixgbe_enable_rx_dma_82599(struct ixgbe_hw *hw, u32 regval)
|
|
{
|
|
/*
|
|
* Workaround for 82599 silicon errata when enabling the Rx datapath.
|
|
* If traffic is incoming before we enable the Rx unit, it could hang
|
|
* the Rx DMA unit. Therefore, make sure the security engine is
|
|
* completely disabled prior to enabling the Rx unit.
|
|
*/
|
|
hw->mac.ops.disable_rx_buff(hw);
|
|
|
|
if (regval & IXGBE_RXCTRL_RXEN)
|
|
hw->mac.ops.enable_rx(hw);
|
|
else
|
|
hw->mac.ops.disable_rx(hw);
|
|
|
|
hw->mac.ops.enable_rx_buff(hw);
|
|
|
|
return 0;
|
|
}
|
|
|
|
/**
|
|
* ixgbe_verify_fw_version_82599 - verify fw version for 82599
|
|
* @hw: pointer to hardware structure
|
|
*
|
|
* Verifies that installed the firmware version is 0.6 or higher
|
|
* for SFI devices. All 82599 SFI devices should have version 0.6 or higher.
|
|
*
|
|
* Returns IXGBE_ERR_EEPROM_VERSION if the FW is not present or
|
|
* if the FW version is not supported.
|
|
**/
|
|
static s32 ixgbe_verify_fw_version_82599(struct ixgbe_hw *hw)
|
|
{
|
|
s32 status = IXGBE_ERR_EEPROM_VERSION;
|
|
u16 fw_offset, fw_ptp_cfg_offset;
|
|
u16 offset;
|
|
u16 fw_version = 0;
|
|
|
|
/* firmware check is only necessary for SFI devices */
|
|
if (hw->phy.media_type != ixgbe_media_type_fiber)
|
|
return 0;
|
|
|
|
/* get the offset to the Firmware Module block */
|
|
offset = IXGBE_FW_PTR;
|
|
if (hw->eeprom.ops.read(hw, offset, &fw_offset))
|
|
goto fw_version_err;
|
|
|
|
if (fw_offset == 0 || fw_offset == 0xFFFF)
|
|
return IXGBE_ERR_EEPROM_VERSION;
|
|
|
|
/* get the offset to the Pass Through Patch Configuration block */
|
|
offset = fw_offset + IXGBE_FW_PASSTHROUGH_PATCH_CONFIG_PTR;
|
|
if (hw->eeprom.ops.read(hw, offset, &fw_ptp_cfg_offset))
|
|
goto fw_version_err;
|
|
|
|
if (fw_ptp_cfg_offset == 0 || fw_ptp_cfg_offset == 0xFFFF)
|
|
return IXGBE_ERR_EEPROM_VERSION;
|
|
|
|
/* get the firmware version */
|
|
offset = fw_ptp_cfg_offset + IXGBE_FW_PATCH_VERSION_4;
|
|
if (hw->eeprom.ops.read(hw, offset, &fw_version))
|
|
goto fw_version_err;
|
|
|
|
if (fw_version > 0x5)
|
|
status = 0;
|
|
|
|
return status;
|
|
|
|
fw_version_err:
|
|
hw_err(hw, "eeprom read at offset %d failed\n", offset);
|
|
return IXGBE_ERR_EEPROM_VERSION;
|
|
}
|
|
|
|
/**
|
|
* ixgbe_verify_lesm_fw_enabled_82599 - Checks LESM FW module state.
|
|
* @hw: pointer to hardware structure
|
|
*
|
|
* Returns true if the LESM FW module is present and enabled. Otherwise
|
|
* returns false. Smart Speed must be disabled if LESM FW module is enabled.
|
|
**/
|
|
static bool ixgbe_verify_lesm_fw_enabled_82599(struct ixgbe_hw *hw)
|
|
{
|
|
u16 fw_offset, fw_lesm_param_offset, fw_lesm_state;
|
|
s32 status;
|
|
|
|
/* get the offset to the Firmware Module block */
|
|
status = hw->eeprom.ops.read(hw, IXGBE_FW_PTR, &fw_offset);
|
|
|
|
if (status || fw_offset == 0 || fw_offset == 0xFFFF)
|
|
return false;
|
|
|
|
/* get the offset to the LESM Parameters block */
|
|
status = hw->eeprom.ops.read(hw, (fw_offset +
|
|
IXGBE_FW_LESM_PARAMETERS_PTR),
|
|
&fw_lesm_param_offset);
|
|
|
|
if (status ||
|
|
fw_lesm_param_offset == 0 || fw_lesm_param_offset == 0xFFFF)
|
|
return false;
|
|
|
|
/* get the lesm state word */
|
|
status = hw->eeprom.ops.read(hw, (fw_lesm_param_offset +
|
|
IXGBE_FW_LESM_STATE_1),
|
|
&fw_lesm_state);
|
|
|
|
if (!status && (fw_lesm_state & IXGBE_FW_LESM_STATE_ENABLED))
|
|
return true;
|
|
|
|
return false;
|
|
}
|
|
|
|
/**
|
|
* ixgbe_read_eeprom_buffer_82599 - Read EEPROM word(s) using
|
|
* fastest available method
|
|
*
|
|
* @hw: pointer to hardware structure
|
|
* @offset: offset of word in EEPROM to read
|
|
* @words: number of words
|
|
* @data: word(s) read from the EEPROM
|
|
*
|
|
* Retrieves 16 bit word(s) read from EEPROM
|
|
**/
|
|
static s32 ixgbe_read_eeprom_buffer_82599(struct ixgbe_hw *hw, u16 offset,
|
|
u16 words, u16 *data)
|
|
{
|
|
struct ixgbe_eeprom_info *eeprom = &hw->eeprom;
|
|
|
|
/* If EEPROM is detected and can be addressed using 14 bits,
|
|
* use EERD otherwise use bit bang
|
|
*/
|
|
if (eeprom->type == ixgbe_eeprom_spi &&
|
|
offset + (words - 1) <= IXGBE_EERD_MAX_ADDR)
|
|
return ixgbe_read_eerd_buffer_generic(hw, offset, words, data);
|
|
|
|
return ixgbe_read_eeprom_buffer_bit_bang_generic(hw, offset, words,
|
|
data);
|
|
}
|
|
|
|
/**
|
|
* ixgbe_read_eeprom_82599 - Read EEPROM word using
|
|
* fastest available method
|
|
*
|
|
* @hw: pointer to hardware structure
|
|
* @offset: offset of word in the EEPROM to read
|
|
* @data: word read from the EEPROM
|
|
*
|
|
* Reads a 16 bit word from the EEPROM
|
|
**/
|
|
static s32 ixgbe_read_eeprom_82599(struct ixgbe_hw *hw,
|
|
u16 offset, u16 *data)
|
|
{
|
|
struct ixgbe_eeprom_info *eeprom = &hw->eeprom;
|
|
|
|
/*
|
|
* If EEPROM is detected and can be addressed using 14 bits,
|
|
* use EERD otherwise use bit bang
|
|
*/
|
|
if (eeprom->type == ixgbe_eeprom_spi && offset <= IXGBE_EERD_MAX_ADDR)
|
|
return ixgbe_read_eerd_generic(hw, offset, data);
|
|
|
|
return ixgbe_read_eeprom_bit_bang_generic(hw, offset, data);
|
|
}
|
|
|
|
/**
|
|
* ixgbe_reset_pipeline_82599 - perform pipeline reset
|
|
*
|
|
* @hw: pointer to hardware structure
|
|
*
|
|
* Reset pipeline by asserting Restart_AN together with LMS change to ensure
|
|
* full pipeline reset. Note - We must hold the SW/FW semaphore before writing
|
|
* to AUTOC, so this function assumes the semaphore is held.
|
|
**/
|
|
static s32 ixgbe_reset_pipeline_82599(struct ixgbe_hw *hw)
|
|
{
|
|
s32 ret_val;
|
|
u32 anlp1_reg = 0;
|
|
u32 i, autoc_reg, autoc2_reg;
|
|
|
|
/* Enable link if disabled in NVM */
|
|
autoc2_reg = IXGBE_READ_REG(hw, IXGBE_AUTOC2);
|
|
if (autoc2_reg & IXGBE_AUTOC2_LINK_DISABLE_MASK) {
|
|
autoc2_reg &= ~IXGBE_AUTOC2_LINK_DISABLE_MASK;
|
|
IXGBE_WRITE_REG(hw, IXGBE_AUTOC2, autoc2_reg);
|
|
IXGBE_WRITE_FLUSH(hw);
|
|
}
|
|
|
|
autoc_reg = IXGBE_READ_REG(hw, IXGBE_AUTOC);
|
|
autoc_reg |= IXGBE_AUTOC_AN_RESTART;
|
|
|
|
/* Write AUTOC register with toggled LMS[2] bit and Restart_AN */
|
|
IXGBE_WRITE_REG(hw, IXGBE_AUTOC,
|
|
autoc_reg ^ (0x4 << IXGBE_AUTOC_LMS_SHIFT));
|
|
|
|
/* Wait for AN to leave state 0 */
|
|
for (i = 0; i < 10; i++) {
|
|
usleep_range(4000, 8000);
|
|
anlp1_reg = IXGBE_READ_REG(hw, IXGBE_ANLP1);
|
|
if (anlp1_reg & IXGBE_ANLP1_AN_STATE_MASK)
|
|
break;
|
|
}
|
|
|
|
if (!(anlp1_reg & IXGBE_ANLP1_AN_STATE_MASK)) {
|
|
hw_dbg(hw, "auto negotiation not completed\n");
|
|
ret_val = IXGBE_ERR_RESET_FAILED;
|
|
goto reset_pipeline_out;
|
|
}
|
|
|
|
ret_val = 0;
|
|
|
|
reset_pipeline_out:
|
|
/* Write AUTOC register with original LMS field and Restart_AN */
|
|
IXGBE_WRITE_REG(hw, IXGBE_AUTOC, autoc_reg);
|
|
IXGBE_WRITE_FLUSH(hw);
|
|
|
|
return ret_val;
|
|
}
|
|
|
|
/**
|
|
* ixgbe_read_i2c_byte_82599 - Reads 8 bit word over I2C
|
|
* @hw: pointer to hardware structure
|
|
* @byte_offset: byte offset to read
|
|
* @dev_addr: address to read from
|
|
* @data: value read
|
|
*
|
|
* Performs byte read operation to SFP module's EEPROM over I2C interface at
|
|
* a specified device address.
|
|
**/
|
|
static s32 ixgbe_read_i2c_byte_82599(struct ixgbe_hw *hw, u8 byte_offset,
|
|
u8 dev_addr, u8 *data)
|
|
{
|
|
u32 esdp;
|
|
s32 status;
|
|
s32 timeout = 200;
|
|
|
|
if (hw->phy.qsfp_shared_i2c_bus == true) {
|
|
/* Acquire I2C bus ownership. */
|
|
esdp = IXGBE_READ_REG(hw, IXGBE_ESDP);
|
|
esdp |= IXGBE_ESDP_SDP0;
|
|
IXGBE_WRITE_REG(hw, IXGBE_ESDP, esdp);
|
|
IXGBE_WRITE_FLUSH(hw);
|
|
|
|
while (timeout) {
|
|
esdp = IXGBE_READ_REG(hw, IXGBE_ESDP);
|
|
if (esdp & IXGBE_ESDP_SDP1)
|
|
break;
|
|
|
|
usleep_range(5000, 10000);
|
|
timeout--;
|
|
}
|
|
|
|
if (!timeout) {
|
|
hw_dbg(hw, "Driver can't access resource, acquiring I2C bus timeout.\n");
|
|
status = IXGBE_ERR_I2C;
|
|
goto release_i2c_access;
|
|
}
|
|
}
|
|
|
|
status = ixgbe_read_i2c_byte_generic(hw, byte_offset, dev_addr, data);
|
|
|
|
release_i2c_access:
|
|
if (hw->phy.qsfp_shared_i2c_bus == true) {
|
|
/* Release I2C bus ownership. */
|
|
esdp = IXGBE_READ_REG(hw, IXGBE_ESDP);
|
|
esdp &= ~IXGBE_ESDP_SDP0;
|
|
IXGBE_WRITE_REG(hw, IXGBE_ESDP, esdp);
|
|
IXGBE_WRITE_FLUSH(hw);
|
|
}
|
|
|
|
return status;
|
|
}
|
|
|
|
/**
|
|
* ixgbe_write_i2c_byte_82599 - Writes 8 bit word over I2C
|
|
* @hw: pointer to hardware structure
|
|
* @byte_offset: byte offset to write
|
|
* @dev_addr: address to write to
|
|
* @data: value to write
|
|
*
|
|
* Performs byte write operation to SFP module's EEPROM over I2C interface at
|
|
* a specified device address.
|
|
**/
|
|
static s32 ixgbe_write_i2c_byte_82599(struct ixgbe_hw *hw, u8 byte_offset,
|
|
u8 dev_addr, u8 data)
|
|
{
|
|
u32 esdp;
|
|
s32 status;
|
|
s32 timeout = 200;
|
|
|
|
if (hw->phy.qsfp_shared_i2c_bus == true) {
|
|
/* Acquire I2C bus ownership. */
|
|
esdp = IXGBE_READ_REG(hw, IXGBE_ESDP);
|
|
esdp |= IXGBE_ESDP_SDP0;
|
|
IXGBE_WRITE_REG(hw, IXGBE_ESDP, esdp);
|
|
IXGBE_WRITE_FLUSH(hw);
|
|
|
|
while (timeout) {
|
|
esdp = IXGBE_READ_REG(hw, IXGBE_ESDP);
|
|
if (esdp & IXGBE_ESDP_SDP1)
|
|
break;
|
|
|
|
usleep_range(5000, 10000);
|
|
timeout--;
|
|
}
|
|
|
|
if (!timeout) {
|
|
hw_dbg(hw, "Driver can't access resource, acquiring I2C bus timeout.\n");
|
|
status = IXGBE_ERR_I2C;
|
|
goto release_i2c_access;
|
|
}
|
|
}
|
|
|
|
status = ixgbe_write_i2c_byte_generic(hw, byte_offset, dev_addr, data);
|
|
|
|
release_i2c_access:
|
|
if (hw->phy.qsfp_shared_i2c_bus == true) {
|
|
/* Release I2C bus ownership. */
|
|
esdp = IXGBE_READ_REG(hw, IXGBE_ESDP);
|
|
esdp &= ~IXGBE_ESDP_SDP0;
|
|
IXGBE_WRITE_REG(hw, IXGBE_ESDP, esdp);
|
|
IXGBE_WRITE_FLUSH(hw);
|
|
}
|
|
|
|
return status;
|
|
}
|
|
|
|
static const struct ixgbe_mac_operations mac_ops_82599 = {
|
|
.init_hw = &ixgbe_init_hw_generic,
|
|
.reset_hw = &ixgbe_reset_hw_82599,
|
|
.start_hw = &ixgbe_start_hw_82599,
|
|
.clear_hw_cntrs = &ixgbe_clear_hw_cntrs_generic,
|
|
.get_media_type = &ixgbe_get_media_type_82599,
|
|
.enable_rx_dma = &ixgbe_enable_rx_dma_82599,
|
|
.disable_rx_buff = &ixgbe_disable_rx_buff_generic,
|
|
.enable_rx_buff = &ixgbe_enable_rx_buff_generic,
|
|
.get_mac_addr = &ixgbe_get_mac_addr_generic,
|
|
.get_san_mac_addr = &ixgbe_get_san_mac_addr_generic,
|
|
.get_device_caps = &ixgbe_get_device_caps_generic,
|
|
.get_wwn_prefix = &ixgbe_get_wwn_prefix_generic,
|
|
.stop_adapter = &ixgbe_stop_adapter_generic,
|
|
.get_bus_info = &ixgbe_get_bus_info_generic,
|
|
.set_lan_id = &ixgbe_set_lan_id_multi_port_pcie,
|
|
.read_analog_reg8 = &ixgbe_read_analog_reg8_82599,
|
|
.write_analog_reg8 = &ixgbe_write_analog_reg8_82599,
|
|
.stop_link_on_d3 = &ixgbe_stop_mac_link_on_d3_82599,
|
|
.setup_link = &ixgbe_setup_mac_link_82599,
|
|
.set_rxpba = &ixgbe_set_rxpba_generic,
|
|
.check_link = &ixgbe_check_mac_link_generic,
|
|
.get_link_capabilities = &ixgbe_get_link_capabilities_82599,
|
|
.led_on = &ixgbe_led_on_generic,
|
|
.led_off = &ixgbe_led_off_generic,
|
|
.init_led_link_act = ixgbe_init_led_link_act_generic,
|
|
.blink_led_start = &ixgbe_blink_led_start_generic,
|
|
.blink_led_stop = &ixgbe_blink_led_stop_generic,
|
|
.set_rar = &ixgbe_set_rar_generic,
|
|
.clear_rar = &ixgbe_clear_rar_generic,
|
|
.set_vmdq = &ixgbe_set_vmdq_generic,
|
|
.set_vmdq_san_mac = &ixgbe_set_vmdq_san_mac_generic,
|
|
.clear_vmdq = &ixgbe_clear_vmdq_generic,
|
|
.init_rx_addrs = &ixgbe_init_rx_addrs_generic,
|
|
.update_mc_addr_list = &ixgbe_update_mc_addr_list_generic,
|
|
.enable_mc = &ixgbe_enable_mc_generic,
|
|
.disable_mc = &ixgbe_disable_mc_generic,
|
|
.clear_vfta = &ixgbe_clear_vfta_generic,
|
|
.set_vfta = &ixgbe_set_vfta_generic,
|
|
.fc_enable = &ixgbe_fc_enable_generic,
|
|
.setup_fc = ixgbe_setup_fc_generic,
|
|
.fc_autoneg = ixgbe_fc_autoneg,
|
|
.set_fw_drv_ver = &ixgbe_set_fw_drv_ver_generic,
|
|
.init_uta_tables = &ixgbe_init_uta_tables_generic,
|
|
.setup_sfp = &ixgbe_setup_sfp_modules_82599,
|
|
.set_mac_anti_spoofing = &ixgbe_set_mac_anti_spoofing,
|
|
.set_vlan_anti_spoofing = &ixgbe_set_vlan_anti_spoofing,
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.acquire_swfw_sync = &ixgbe_acquire_swfw_sync,
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.release_swfw_sync = &ixgbe_release_swfw_sync,
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.init_swfw_sync = NULL,
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.get_thermal_sensor_data = &ixgbe_get_thermal_sensor_data_generic,
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.init_thermal_sensor_thresh = &ixgbe_init_thermal_sensor_thresh_generic,
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.prot_autoc_read = &prot_autoc_read_82599,
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.prot_autoc_write = &prot_autoc_write_82599,
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.enable_rx = &ixgbe_enable_rx_generic,
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.disable_rx = &ixgbe_disable_rx_generic,
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};
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|
|
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static const struct ixgbe_eeprom_operations eeprom_ops_82599 = {
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.init_params = &ixgbe_init_eeprom_params_generic,
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.read = &ixgbe_read_eeprom_82599,
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.read_buffer = &ixgbe_read_eeprom_buffer_82599,
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.write = &ixgbe_write_eeprom_generic,
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.write_buffer = &ixgbe_write_eeprom_buffer_bit_bang_generic,
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.calc_checksum = &ixgbe_calc_eeprom_checksum_generic,
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|
.validate_checksum = &ixgbe_validate_eeprom_checksum_generic,
|
|
.update_checksum = &ixgbe_update_eeprom_checksum_generic,
|
|
};
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|
|
|
static const struct ixgbe_phy_operations phy_ops_82599 = {
|
|
.identify = &ixgbe_identify_phy_82599,
|
|
.identify_sfp = &ixgbe_identify_module_generic,
|
|
.init = &ixgbe_init_phy_ops_82599,
|
|
.reset = &ixgbe_reset_phy_generic,
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|
.read_reg = &ixgbe_read_phy_reg_generic,
|
|
.write_reg = &ixgbe_write_phy_reg_generic,
|
|
.setup_link = &ixgbe_setup_phy_link_generic,
|
|
.setup_link_speed = &ixgbe_setup_phy_link_speed_generic,
|
|
.read_i2c_byte = &ixgbe_read_i2c_byte_generic,
|
|
.write_i2c_byte = &ixgbe_write_i2c_byte_generic,
|
|
.read_i2c_sff8472 = &ixgbe_read_i2c_sff8472_generic,
|
|
.read_i2c_eeprom = &ixgbe_read_i2c_eeprom_generic,
|
|
.write_i2c_eeprom = &ixgbe_write_i2c_eeprom_generic,
|
|
.check_overtemp = &ixgbe_tn_check_overtemp,
|
|
};
|
|
|
|
const struct ixgbe_info ixgbe_82599_info = {
|
|
.mac = ixgbe_mac_82599EB,
|
|
.get_invariants = &ixgbe_get_invariants_82599,
|
|
.mac_ops = &mac_ops_82599,
|
|
.eeprom_ops = &eeprom_ops_82599,
|
|
.phy_ops = &phy_ops_82599,
|
|
.mbx_ops = &mbx_ops_generic,
|
|
.mvals = ixgbe_mvals_8259X,
|
|
};
|