ixgbe_82598.c 38.2 KB
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/*******************************************************************************

  Intel 10 Gigabit PCI Express Linux driver
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  Copyright(c) 1999 - 2012 Intel Corporation.
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  This program is free software; you can redistribute it and/or modify it
  under the terms and conditions of the GNU General Public License,
  version 2, as published by the Free Software Foundation.

  This program is distributed in the hope it will be useful, but WITHOUT
  ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
  more details.

  You should have received a copy of the GNU General Public License along with
  this program; if not, write to the Free Software Foundation, Inc.,
  51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.

  The full GNU General Public License is included in this distribution in
  the file called "COPYING".

  Contact Information:
  e1000-devel Mailing List <e1000-devel@lists.sourceforge.net>
  Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497

*******************************************************************************/

#include <linux/pci.h>
#include <linux/delay.h>
#include <linux/sched.h>

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#include "ixgbe.h"
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#include "ixgbe_phy.h"

#define IXGBE_82598_MAX_TX_QUEUES 32
#define IXGBE_82598_MAX_RX_QUEUES 64
#define IXGBE_82598_RAR_ENTRIES   16
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#define IXGBE_82598_MC_TBL_SIZE  128
#define IXGBE_82598_VFT_TBL_SIZE 128
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#define IXGBE_82598_RX_PB_SIZE	 512
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static s32 ixgbe_setup_copper_link_82598(struct ixgbe_hw *hw,
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                                         ixgbe_link_speed speed,
                                         bool autoneg,
                                         bool autoneg_wait_to_complete);
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static s32 ixgbe_read_i2c_eeprom_82598(struct ixgbe_hw *hw, u8 byte_offset,
                                       u8 *eeprom_data);
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/**
 *  ixgbe_set_pcie_completion_timeout - set pci-e completion timeout
 *  @hw: pointer to the HW structure
 *
 *  The defaults for 82598 should be in the range of 50us to 50ms,
 *  however the hardware default for these parts is 500us to 1ms which is less
 *  than the 10ms recommended by the pci-e spec.  To address this we need to
 *  increase the value to either 10ms to 250ms for capability version 1 config,
 *  or 16ms to 55ms for version 2.
 **/
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static void ixgbe_set_pcie_completion_timeout(struct ixgbe_hw *hw)
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{
	struct ixgbe_adapter *adapter = hw->back;
	u32 gcr = IXGBE_READ_REG(hw, IXGBE_GCR);
	u16 pcie_devctl2;

	/* only take action if timeout value is defaulted to 0 */
	if (gcr & IXGBE_GCR_CMPL_TMOUT_MASK)
		goto out;

	/*
	 * if capababilities version is type 1 we can write the
	 * timeout of 10ms to 250ms through the GCR register
	 */
	if (!(gcr & IXGBE_GCR_CAP_VER2)) {
		gcr |= IXGBE_GCR_CMPL_TMOUT_10ms;
		goto out;
	}

	/*
	 * for version 2 capabilities we need to write the config space
	 * directly in order to set the completion timeout value for
	 * 16ms to 55ms
	 */
	pci_read_config_word(adapter->pdev,
	                     IXGBE_PCI_DEVICE_CONTROL2, &pcie_devctl2);
	pcie_devctl2 |= IXGBE_PCI_DEVICE_CONTROL2_16ms;
	pci_write_config_word(adapter->pdev,
	                      IXGBE_PCI_DEVICE_CONTROL2, pcie_devctl2);
out:
	/* disable completion timeout resend */
	gcr &= ~IXGBE_GCR_CMPL_TMOUT_RESEND;
	IXGBE_WRITE_REG(hw, IXGBE_GCR, gcr);
}

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static s32 ixgbe_get_invariants_82598(struct ixgbe_hw *hw)
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{
	struct ixgbe_mac_info *mac = &hw->mac;

	/* Call PHY identify routine to get the phy type */
	ixgbe_identify_phy_generic(hw);

	mac->mcft_size = IXGBE_82598_MC_TBL_SIZE;
	mac->vft_size = IXGBE_82598_VFT_TBL_SIZE;
	mac->num_rar_entries = IXGBE_82598_RAR_ENTRIES;
	mac->max_rx_queues = IXGBE_82598_MAX_RX_QUEUES;
	mac->max_tx_queues = IXGBE_82598_MAX_TX_QUEUES;
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	mac->max_msix_vectors = ixgbe_get_pcie_msix_count_generic(hw);
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	return 0;
}

/**
 *  ixgbe_init_phy_ops_82598 - PHY/SFP specific init
 *  @hw: pointer to hardware structure
 *
 *  Initialize any function pointers that were not able to be
 *  set during get_invariants because the PHY/SFP type was
 *  not known.  Perform the SFP init if necessary.
 *
 **/
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static s32 ixgbe_init_phy_ops_82598(struct ixgbe_hw *hw)
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{
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	struct ixgbe_mac_info *mac = &hw->mac;
	struct ixgbe_phy_info *phy = &hw->phy;
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	s32 ret_val = 0;
	u16 list_offset, data_offset;
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	/* Identify the PHY */
	phy->ops.identify(hw);
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	/* Overwrite the link function pointers if copper PHY */
	if (mac->ops.get_media_type(hw) == ixgbe_media_type_copper) {
		mac->ops.setup_link = &ixgbe_setup_copper_link_82598;
		mac->ops.get_link_capabilities =
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			&ixgbe_get_copper_link_capabilities_generic;
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	}
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	switch (hw->phy.type) {
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	case ixgbe_phy_tn:
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		phy->ops.setup_link = &ixgbe_setup_phy_link_tnx;
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		phy->ops.check_link = &ixgbe_check_phy_link_tnx;
		phy->ops.get_firmware_version =
		             &ixgbe_get_phy_firmware_version_tnx;
		break;
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	case ixgbe_phy_nl:
		phy->ops.reset = &ixgbe_reset_phy_nl;

		/* Call SFP+ identify routine to get the SFP+ module type */
		ret_val = phy->ops.identify_sfp(hw);
		if (ret_val != 0)
			goto out;
		else if (hw->phy.sfp_type == ixgbe_sfp_type_unknown) {
			ret_val = IXGBE_ERR_SFP_NOT_SUPPORTED;
			goto out;
		}

		/* Check to see if SFP+ module is supported */
		ret_val = ixgbe_get_sfp_init_sequence_offsets(hw,
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		                                            &list_offset,
		                                            &data_offset);
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		if (ret_val != 0) {
			ret_val = IXGBE_ERR_SFP_NOT_SUPPORTED;
			goto out;
		}
		break;
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	default:
		break;
	}

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out:
	return ret_val;
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}

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/**
 *  ixgbe_start_hw_82598 - Prepare hardware for Tx/Rx
 *  @hw: pointer to hardware structure
 *
 *  Starts the hardware using the generic start_hw function.
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 *  Disables relaxed ordering Then set pcie completion timeout
 *
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 **/
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static s32 ixgbe_start_hw_82598(struct ixgbe_hw *hw)
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{
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	u32 regval;
	u32 i;
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	s32 ret_val = 0;

	ret_val = ixgbe_start_hw_generic(hw);

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	/* Disable relaxed ordering */
	for (i = 0; ((i < hw->mac.max_tx_queues) &&
	     (i < IXGBE_DCA_MAX_QUEUES_82598)); i++) {
		regval = IXGBE_READ_REG(hw, IXGBE_DCA_TXCTRL(i));
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		regval &= ~IXGBE_DCA_TXCTRL_DESC_WRO_EN;
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		IXGBE_WRITE_REG(hw, IXGBE_DCA_TXCTRL(i), regval);
	}

	for (i = 0; ((i < hw->mac.max_rx_queues) &&
	     (i < IXGBE_DCA_MAX_QUEUES_82598)); i++) {
		regval = IXGBE_READ_REG(hw, IXGBE_DCA_RXCTRL(i));
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		regval &= ~(IXGBE_DCA_RXCTRL_DATA_WRO_EN |
			    IXGBE_DCA_RXCTRL_HEAD_WRO_EN);
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		IXGBE_WRITE_REG(hw, IXGBE_DCA_RXCTRL(i), regval);
	}

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	hw->mac.rx_pb_size = IXGBE_82598_RX_PB_SIZE;

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	/* set the completion timeout for interface */
	if (ret_val == 0)
		ixgbe_set_pcie_completion_timeout(hw);

	return ret_val;
}

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/**
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 *  ixgbe_get_link_capabilities_82598 - Determines link capabilities
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 *  @hw: pointer to hardware structure
 *  @speed: pointer to link speed
 *  @autoneg: boolean auto-negotiation value
 *
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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_82598(struct ixgbe_hw *hw,
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                                             ixgbe_link_speed *speed,
                                             bool *autoneg)
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{
	s32 status = 0;
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	u32 autoc = 0;
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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
	 * stored, use the current register value.
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	 */
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	if (hw->mac.orig_link_settings_stored)
		autoc = hw->mac.orig_autoc;
	else
		autoc = IXGBE_READ_REG(hw, IXGBE_AUTOC);

	switch (autoc & IXGBE_AUTOC_LMS_MASK) {
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	case IXGBE_AUTOC_LMS_1G_LINK_NO_AN:
		*speed = IXGBE_LINK_SPEED_1GB_FULL;
		*autoneg = false;
		break;

	case IXGBE_AUTOC_LMS_10G_LINK_NO_AN:
		*speed = IXGBE_LINK_SPEED_10GB_FULL;
		*autoneg = false;
		break;

	case IXGBE_AUTOC_LMS_1G_AN:
		*speed = IXGBE_LINK_SPEED_1GB_FULL;
		*autoneg = true;
		break;

	case IXGBE_AUTOC_LMS_KX4_AN:
	case IXGBE_AUTOC_LMS_KX4_AN_1G_AN:
		*speed = IXGBE_LINK_SPEED_UNKNOWN;
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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;
		*autoneg = true;
		break;

	default:
		status = IXGBE_ERR_LINK_SETUP;
		break;
	}

	return status;
}

/**
 *  ixgbe_get_media_type_82598 - Determines media type
 *  @hw: pointer to hardware structure
 *
 *  Returns the media type (fiber, copper, backplane)
 **/
static enum ixgbe_media_type ixgbe_get_media_type_82598(struct ixgbe_hw *hw)
{
	enum ixgbe_media_type media_type;

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	/* Detect if there is a copper PHY attached. */
	switch (hw->phy.type) {
	case ixgbe_phy_cu_unknown:
	case ixgbe_phy_tn:
		media_type = ixgbe_media_type_copper;
		goto out;
	default:
		break;
	}

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	/* Media type for I82598 is based on device ID */
	switch (hw->device_id) {
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	case IXGBE_DEV_ID_82598:
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	case IXGBE_DEV_ID_82598_BX:
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		/* Default device ID is mezzanine card KX/KX4 */
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		media_type = ixgbe_media_type_backplane;
		break;
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	case IXGBE_DEV_ID_82598AF_DUAL_PORT:
	case IXGBE_DEV_ID_82598AF_SINGLE_PORT:
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	case IXGBE_DEV_ID_82598_DA_DUAL_PORT:
	case IXGBE_DEV_ID_82598_SR_DUAL_PORT_EM:
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	case IXGBE_DEV_ID_82598EB_XF_LR:
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	case IXGBE_DEV_ID_82598EB_SFP_LOM:
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		media_type = ixgbe_media_type_fiber;
		break;
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	case IXGBE_DEV_ID_82598EB_CX4:
	case IXGBE_DEV_ID_82598_CX4_DUAL_PORT:
		media_type = ixgbe_media_type_cx4;
		break;
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	case IXGBE_DEV_ID_82598AT:
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	case IXGBE_DEV_ID_82598AT2:
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		media_type = ixgbe_media_type_copper;
		break;
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	default:
		media_type = ixgbe_media_type_unknown;
		break;
	}
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out:
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	return media_type;
}

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/**
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 *  ixgbe_fc_enable_82598 - Enable flow control
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 *  @hw: pointer to hardware structure
 *
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 *  Enable flow control according to the current settings.
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 **/
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static s32 ixgbe_fc_enable_82598(struct ixgbe_hw *hw)
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{
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	s32 ret_val = 0;
	u32 fctrl_reg;
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	u32 rmcs_reg;
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	u32 reg;
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	u32 fcrtl, fcrth;
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	u32 link_speed = 0;
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	int i;
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	bool link_up;
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	/*
	 * Validate the water mark configuration for packet buffer 0.  Zero
	 * water marks indicate that the packet buffer was not configured
	 * and the watermarks for packet buffer 0 should always be configured.
	 */
	if (!hw->fc.low_water ||
	    !hw->fc.high_water[0] ||
	    !hw->fc.pause_time) {
		hw_dbg(hw, "Invalid water mark configuration\n");
		ret_val = IXGBE_ERR_INVALID_LINK_SETTINGS;
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		goto out;
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	}
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	/*
	 * On 82598 having Rx FC on causes resets while doing 1G
	 * so if it's on turn it off once we know link_speed. For
	 * more details see 82598 Specification update.
	 */
	hw->mac.ops.check_link(hw, &link_speed, &link_up, false);
	if (link_up && link_speed == IXGBE_LINK_SPEED_1GB_FULL) {
		switch (hw->fc.requested_mode) {
		case ixgbe_fc_full:
			hw->fc.requested_mode = ixgbe_fc_tx_pause;
			break;
		case ixgbe_fc_rx_pause:
			hw->fc.requested_mode = ixgbe_fc_none;
			break;
		default:
			/* no change */
			break;
		}
	}

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	/* Negotiate the fc mode to use */
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	ixgbe_fc_autoneg(hw);
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	/* Disable any previous flow control settings */
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	fctrl_reg = IXGBE_READ_REG(hw, IXGBE_FCTRL);
	fctrl_reg &= ~(IXGBE_FCTRL_RFCE | IXGBE_FCTRL_RPFCE);
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	rmcs_reg = IXGBE_READ_REG(hw, IXGBE_RMCS);
	rmcs_reg &= ~(IXGBE_RMCS_TFCE_PRIORITY | IXGBE_RMCS_TFCE_802_3X);

	/*
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	 * The possible values of fc.current_mode are:
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	 * 0: Flow control is completely disabled
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	 * 1: Rx flow control is enabled (we can receive pause frames,
	 *    but not send pause frames).
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	 * 2: Tx flow control is enabled (we can send pause frames but
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	 *     we do not support receiving pause frames).
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	 * 3: Both Rx and Tx flow control (symmetric) are enabled.
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	 * other: Invalid.
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	 */
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	switch (hw->fc.current_mode) {
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	case ixgbe_fc_none:
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		/*
		 * Flow control is disabled by software override or autoneg.
		 * The code below will actually disable it in the HW.
		 */
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		break;
	case ixgbe_fc_rx_pause:
		/*
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		 * Rx Flow control is enabled and Tx Flow control is
		 * disabled by software override. Since there really
		 * isn't a way to advertise that we are capable of RX
		 * Pause ONLY, we will advertise that we support both
		 * symmetric and asymmetric Rx PAUSE.  Later, we will
		 * disable the adapter's ability to send PAUSE frames.
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		 */
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		fctrl_reg |= IXGBE_FCTRL_RFCE;
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		break;
	case ixgbe_fc_tx_pause:
		/*
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		 * Tx Flow control is enabled, and Rx Flow control is
		 * disabled by software override.
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		 */
		rmcs_reg |= IXGBE_RMCS_TFCE_802_3X;
		break;
	case ixgbe_fc_full:
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		/* Flow control (both Rx and Tx) is enabled by SW override. */
		fctrl_reg |= IXGBE_FCTRL_RFCE;
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		rmcs_reg |= IXGBE_RMCS_TFCE_802_3X;
		break;
	default:
		hw_dbg(hw, "Flow control param set incorrectly\n");
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		ret_val = IXGBE_ERR_CONFIG;
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		goto out;
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		break;
	}

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	/* Set 802.3x based flow control settings. */
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	fctrl_reg |= IXGBE_FCTRL_DPF;
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	IXGBE_WRITE_REG(hw, IXGBE_FCTRL, fctrl_reg);
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	IXGBE_WRITE_REG(hw, IXGBE_RMCS, rmcs_reg);

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	fcrtl = (hw->fc.low_water << 10) | IXGBE_FCRTL_XONE;
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	/* Set up and enable Rx high/low water mark thresholds, enable XON. */
	for (i = 0; i < MAX_TRAFFIC_CLASS; i++) {
		if ((hw->fc.current_mode & ixgbe_fc_tx_pause) &&
		    hw->fc.high_water[i]) {
			fcrth = (hw->fc.high_water[i] << 10) | IXGBE_FCRTH_FCEN;
			IXGBE_WRITE_REG(hw, IXGBE_FCRTL(i), fcrtl);
			IXGBE_WRITE_REG(hw, IXGBE_FCRTH(i), fcrth);
		} else {
			IXGBE_WRITE_REG(hw, IXGBE_FCRTL(i), 0);
			IXGBE_WRITE_REG(hw, IXGBE_FCRTH(i), 0);
		}
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	}

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	/* Configure pause time (2 TCs per register) */
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	reg = hw->fc.pause_time * 0x00010001;
	for (i = 0; i < (MAX_TRAFFIC_CLASS / 2); i++)
		IXGBE_WRITE_REG(hw, IXGBE_FCTTV(i), reg);
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	/* Configure flow control refresh threshold value */
	IXGBE_WRITE_REG(hw, IXGBE_FCRTV, hw->fc.pause_time / 2);
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out:
	return ret_val;
}

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/**
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 *  ixgbe_start_mac_link_82598 - Configures MAC link settings
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 *  @hw: pointer to hardware structure
 *
 *  Configures link settings based on values in the ixgbe_hw struct.
 *  Restarts the link.  Performs autonegotiation if needed.
 **/
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static s32 ixgbe_start_mac_link_82598(struct ixgbe_hw *hw,
                                      bool autoneg_wait_to_complete)
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{
	u32 autoc_reg;
	u32 links_reg;
	u32 i;
	s32 status = 0;

	/* Restart link */
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	autoc_reg = IXGBE_READ_REG(hw, IXGBE_AUTOC);
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	autoc_reg |= IXGBE_AUTOC_AN_RESTART;
	IXGBE_WRITE_REG(hw, IXGBE_AUTOC, autoc_reg);

	/* Only poll for autoneg to complete if specified to do so */
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	if (autoneg_wait_to_complete) {
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		if ((autoc_reg & IXGBE_AUTOC_LMS_MASK) ==
		     IXGBE_AUTOC_LMS_KX4_AN ||
		    (autoc_reg & IXGBE_AUTOC_LMS_MASK) ==
		     IXGBE_AUTOC_LMS_KX4_AN_1G_AN) {
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			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;
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				hw_dbg(hw, "Autonegotiation did not complete.\n");
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			}
		}
	}

	/* Add delay to filter out noises during initial link setup */
	msleep(50);

	return status;
}

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/**
 *  ixgbe_validate_link_ready - Function looks for phy link
 *  @hw: pointer to hardware structure
 *
 *  Function indicates success when phy link is available. If phy is not ready
 *  within 5 seconds of MAC indicating link, the function returns error.
 **/
static s32 ixgbe_validate_link_ready(struct ixgbe_hw *hw)
{
	u32 timeout;
	u16 an_reg;

	if (hw->device_id != IXGBE_DEV_ID_82598AT2)
		return 0;

	for (timeout = 0;
	     timeout < IXGBE_VALIDATE_LINK_READY_TIMEOUT; timeout++) {
		hw->phy.ops.read_reg(hw, MDIO_STAT1, MDIO_MMD_AN, &an_reg);

		if ((an_reg & MDIO_AN_STAT1_COMPLETE) &&
		    (an_reg & MDIO_STAT1_LSTATUS))
			break;

		msleep(100);
	}

	if (timeout == IXGBE_VALIDATE_LINK_READY_TIMEOUT) {
		hw_dbg(hw, "Link was indicated but link is down\n");
		return IXGBE_ERR_LINK_SETUP;
	}

	return 0;
}

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/**
 *  ixgbe_check_mac_link_82598 - Get link/speed status
 *  @hw: pointer to hardware structure
 *  @speed: pointer to link speed
 *  @link_up: true is link is up, false otherwise
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 *  @link_up_wait_to_complete: bool used to wait for link up or not
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 *
 *  Reads the links register to determine if link is up and the current speed
 **/
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static s32 ixgbe_check_mac_link_82598(struct ixgbe_hw *hw,
                                      ixgbe_link_speed *speed, bool *link_up,
                                      bool link_up_wait_to_complete)
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{
	u32 links_reg;
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	u32 i;
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	u16 link_reg, adapt_comp_reg;

	/*
	 * SERDES PHY requires us to read link status from register 0xC79F.
	 * Bit 0 set indicates link is up/ready; clear indicates link down.
	 * 0xC00C is read to check that the XAUI lanes are active.  Bit 0
	 * clear indicates active; set indicates inactive.
	 */
	if (hw->phy.type == ixgbe_phy_nl) {
568 569 570
		hw->phy.ops.read_reg(hw, 0xC79F, MDIO_MMD_PMAPMD, &link_reg);
		hw->phy.ops.read_reg(hw, 0xC79F, MDIO_MMD_PMAPMD, &link_reg);
		hw->phy.ops.read_reg(hw, 0xC00C, MDIO_MMD_PMAPMD,
D
Donald Skidmore 已提交
571 572 573 574 575 576 577 578 579 580 581 582
		                     &adapt_comp_reg);
		if (link_up_wait_to_complete) {
			for (i = 0; i < IXGBE_LINK_UP_TIME; i++) {
				if ((link_reg & 1) &&
				    ((adapt_comp_reg & 1) == 0)) {
					*link_up = true;
					break;
				} else {
					*link_up = false;
				}
				msleep(100);
				hw->phy.ops.read_reg(hw, 0xC79F,
583
				                     MDIO_MMD_PMAPMD,
D
Donald Skidmore 已提交
584 585
				                     &link_reg);
				hw->phy.ops.read_reg(hw, 0xC00C,
586
				                     MDIO_MMD_PMAPMD,
D
Donald Skidmore 已提交
587 588 589 590 591 592 593 594 595
				                     &adapt_comp_reg);
			}
		} else {
			if ((link_reg & 1) && ((adapt_comp_reg & 1) == 0))
				*link_up = true;
			else
				*link_up = false;
		}

596
		if (!*link_up)
D
Donald Skidmore 已提交
597 598
			goto out;
	}
599 600

	links_reg = IXGBE_READ_REG(hw, IXGBE_LINKS);
601 602 603 604 605 606 607 608 609 610 611 612 613 614 615 616 617
	if (link_up_wait_to_complete) {
		for (i = 0; i < IXGBE_LINK_UP_TIME; i++) {
			if (links_reg & IXGBE_LINKS_UP) {
				*link_up = true;
				break;
			} else {
				*link_up = false;
			}
			msleep(100);
			links_reg = IXGBE_READ_REG(hw, IXGBE_LINKS);
		}
	} else {
		if (links_reg & IXGBE_LINKS_UP)
			*link_up = true;
		else
			*link_up = false;
	}
618 619 620 621 622 623

	if (links_reg & IXGBE_LINKS_SPEED)
		*speed = IXGBE_LINK_SPEED_10GB_FULL;
	else
		*speed = IXGBE_LINK_SPEED_1GB_FULL;

624
	if ((hw->device_id == IXGBE_DEV_ID_82598AT2) && *link_up &&
625 626 627
	    (ixgbe_validate_link_ready(hw) != 0))
		*link_up = false;

D
Donald Skidmore 已提交
628
out:
629 630 631 632
	return 0;
}

/**
633
 *  ixgbe_setup_mac_link_82598 - Set MAC link speed
634 635 636
 *  @hw: pointer to hardware structure
 *  @speed: new link speed
 *  @autoneg: true if auto-negotiation enabled
E
Emil Tantilov 已提交
637
 *  @autoneg_wait_to_complete: true when waiting for completion is needed
638 639 640
 *
 *  Set the link speed in the AUTOC register and restarts link.
 **/
641
static s32 ixgbe_setup_mac_link_82598(struct ixgbe_hw *hw,
642 643
                                           ixgbe_link_speed speed, bool autoneg,
                                           bool autoneg_wait_to_complete)
644
{
645 646 647 648 649
	s32              status            = 0;
	ixgbe_link_speed link_capabilities = IXGBE_LINK_SPEED_UNKNOWN;
	u32              curr_autoc        = IXGBE_READ_REG(hw, IXGBE_AUTOC);
	u32              autoc             = curr_autoc;
	u32              link_mode         = autoc & IXGBE_AUTOC_LMS_MASK;
650

651 652 653 654 655
	/* Check to see if speed passed in is supported. */
	ixgbe_get_link_capabilities_82598(hw, &link_capabilities, &autoneg);
	speed &= link_capabilities;

	if (speed == IXGBE_LINK_SPEED_UNKNOWN)
656
		status = IXGBE_ERR_LINK_SETUP;
657 658 659 660 661 662 663 664 665 666 667

	/* Set KX4/KX support according to speed requested */
	else if (link_mode == IXGBE_AUTOC_LMS_KX4_AN ||
	         link_mode == IXGBE_AUTOC_LMS_KX4_AN_1G_AN) {
		autoc &= ~IXGBE_AUTOC_KX4_KX_SUPP_MASK;
		if (speed & IXGBE_LINK_SPEED_10GB_FULL)
			autoc |= IXGBE_AUTOC_KX4_SUPP;
		if (speed & IXGBE_LINK_SPEED_1GB_FULL)
			autoc |= IXGBE_AUTOC_KX_SUPP;
		if (autoc != curr_autoc)
			IXGBE_WRITE_REG(hw, IXGBE_AUTOC, autoc);
668 669 670 671 672 673 674 675
	}

	if (status == 0) {
		/*
		 * Setup and restart the link based on the new values in
		 * ixgbe_hw This will write the AUTOC register based on the new
		 * stored values
		 */
E
Emil Tantilov 已提交
676 677
		status = ixgbe_start_mac_link_82598(hw,
						    autoneg_wait_to_complete);
678 679 680 681 682 683 684
	}

	return status;
}


/**
685
 *  ixgbe_setup_copper_link_82598 - Set the PHY autoneg advertised field
686 687 688 689 690 691 692
 *  @hw: pointer to hardware structure
 *  @speed: new link speed
 *  @autoneg: true if autonegotiation enabled
 *  @autoneg_wait_to_complete: true if waiting is needed to complete
 *
 *  Sets the link speed in the AUTOC register in the MAC and restarts link.
 **/
693
static s32 ixgbe_setup_copper_link_82598(struct ixgbe_hw *hw,
694 695 696
                                               ixgbe_link_speed speed,
                                               bool autoneg,
                                               bool autoneg_wait_to_complete)
697
{
698
	s32 status;
699 700

	/* Setup the PHY according to input speed */
701 702
	status = hw->phy.ops.setup_link_speed(hw, speed, autoneg,
	                                      autoneg_wait_to_complete);
703
	/* Set up MAC */
704
	ixgbe_start_mac_link_82598(hw, autoneg_wait_to_complete);
705 706 707 708 709 710 711 712

	return status;
}

/**
 *  ixgbe_reset_hw_82598 - Performs hardware reset
 *  @hw: pointer to hardware structure
 *
713
 *  Resets the hardware by resetting the transmit and receive units, masks and
714 715 716 717 718 719
 *  clears all interrupts, performing a PHY reset, and performing a link (MAC)
 *  reset.
 **/
static s32 ixgbe_reset_hw_82598(struct ixgbe_hw *hw)
{
	s32 status = 0;
720
	s32 phy_status = 0;
721 722 723 724 725 726 727
	u32 ctrl;
	u32 gheccr;
	u32 i;
	u32 autoc;
	u8  analog_val;

	/* Call adapter stop to disable tx/rx and clear interrupts */
728 729 730
	status = hw->mac.ops.stop_adapter(hw);
	if (status != 0)
		goto reset_hw_out;
731 732

	/*
733 734
	 * Power up the Atlas Tx lanes if they are currently powered down.
	 * Atlas Tx lanes are powered down for MAC loopback tests, but
735 736
	 * they are not automatically restored on reset.
	 */
737
	hw->mac.ops.read_analog_reg8(hw, IXGBE_ATLAS_PDN_LPBK, &analog_val);
738
	if (analog_val & IXGBE_ATLAS_PDN_TX_REG_EN) {
739 740 741
		/* Enable Tx Atlas so packets can be transmitted again */
		hw->mac.ops.read_analog_reg8(hw, IXGBE_ATLAS_PDN_LPBK,
		                             &analog_val);
742
		analog_val &= ~IXGBE_ATLAS_PDN_TX_REG_EN;
743 744
		hw->mac.ops.write_analog_reg8(hw, IXGBE_ATLAS_PDN_LPBK,
		                              analog_val);
745

746 747
		hw->mac.ops.read_analog_reg8(hw, IXGBE_ATLAS_PDN_10G,
		                             &analog_val);
748
		analog_val &= ~IXGBE_ATLAS_PDN_TX_10G_QL_ALL;
749 750
		hw->mac.ops.write_analog_reg8(hw, IXGBE_ATLAS_PDN_10G,
		                              analog_val);
751

752 753
		hw->mac.ops.read_analog_reg8(hw, IXGBE_ATLAS_PDN_1G,
		                             &analog_val);
754
		analog_val &= ~IXGBE_ATLAS_PDN_TX_1G_QL_ALL;
755 756
		hw->mac.ops.write_analog_reg8(hw, IXGBE_ATLAS_PDN_1G,
		                              analog_val);
757

758 759
		hw->mac.ops.read_analog_reg8(hw, IXGBE_ATLAS_PDN_AN,
		                             &analog_val);
760
		analog_val &= ~IXGBE_ATLAS_PDN_TX_AN_QL_ALL;
761 762
		hw->mac.ops.write_analog_reg8(hw, IXGBE_ATLAS_PDN_AN,
		                              analog_val);
763 764 765
	}

	/* Reset PHY */
766 767 768 769
	if (hw->phy.reset_disable == false) {
		/* PHY ops must be identified and initialized prior to reset */

		/* Init PHY and function pointers, perform SFP setup */
770 771
		phy_status = hw->phy.ops.init(hw);
		if (phy_status == IXGBE_ERR_SFP_NOT_SUPPORTED)
772
			goto reset_hw_out;
773 774
		if (phy_status == IXGBE_ERR_SFP_NOT_PRESENT)
			goto mac_reset_top;
775

776
		hw->phy.ops.reset(hw);
777
	}
778

779
mac_reset_top:
780 781 782 783
	/*
	 * Issue global reset to the MAC.  This needs to be a SW reset.
	 * If link reset is used, it might reset the MAC when mng is using it
	 */
A
Alexander Duyck 已提交
784 785
	ctrl = IXGBE_READ_REG(hw, IXGBE_CTRL) | IXGBE_CTRL_RST;
	IXGBE_WRITE_REG(hw, IXGBE_CTRL, ctrl);
786 787 788 789 790 791 792 793 794 795 796 797 798 799
	IXGBE_WRITE_FLUSH(hw);

	/* Poll for reset bit to self-clear indicating reset is complete */
	for (i = 0; i < 10; i++) {
		udelay(1);
		ctrl = IXGBE_READ_REG(hw, IXGBE_CTRL);
		if (!(ctrl & IXGBE_CTRL_RST))
			break;
	}
	if (ctrl & IXGBE_CTRL_RST) {
		status = IXGBE_ERR_RESET_FAILED;
		hw_dbg(hw, "Reset polling failed to complete.\n");
	}

A
Alexander Duyck 已提交
800 801
	msleep(50);

802 803 804
	/*
	 * Double resets are required for recovery from certain error
	 * conditions.  Between resets, it is necessary to stall to allow time
A
Alexander Duyck 已提交
805
	 * for any pending HW events to complete.
806 807 808 809 810 811
	 */
	if (hw->mac.flags & IXGBE_FLAGS_DOUBLE_RESET_REQUIRED) {
		hw->mac.flags &= ~IXGBE_FLAGS_DOUBLE_RESET_REQUIRED;
		goto mac_reset_top;
	}

812 813 814 815 816
	gheccr = IXGBE_READ_REG(hw, IXGBE_GHECCR);
	gheccr &= ~((1 << 21) | (1 << 18) | (1 << 9) | (1 << 6));
	IXGBE_WRITE_REG(hw, IXGBE_GHECCR, gheccr);

	/*
817 818 819
	 * Store the original AUTOC value if it has not been
	 * stored off yet.  Otherwise restore the stored original
	 * AUTOC value since the reset operation sets back to deaults.
820 821
	 */
	autoc = IXGBE_READ_REG(hw, IXGBE_AUTOC);
822 823 824 825 826
	if (hw->mac.orig_link_settings_stored == false) {
		hw->mac.orig_autoc = autoc;
		hw->mac.orig_link_settings_stored = true;
	} else if (autoc != hw->mac.orig_autoc) {
		IXGBE_WRITE_REG(hw, IXGBE_AUTOC, hw->mac.orig_autoc);
827 828
	}

829 830 831
	/* Store the permanent mac address */
	hw->mac.ops.get_mac_addr(hw, hw->mac.perm_addr);

832 833 834 835 836 837
	/*
	 * Store MAC address from RAR0, clear receive address registers, and
	 * clear the multicast table
	 */
	hw->mac.ops.init_rx_addrs(hw);

838
reset_hw_out:
839 840 841
	if (phy_status)
		status = phy_status;

842 843 844
	return status;
}

845 846 847 848 849 850
/**
 *  ixgbe_set_vmdq_82598 - Associate a VMDq set index with a rx address
 *  @hw: pointer to hardware struct
 *  @rar: receive address register index to associate with a VMDq index
 *  @vmdq: VMDq set index
 **/
851
static s32 ixgbe_set_vmdq_82598(struct ixgbe_hw *hw, u32 rar, u32 vmdq)
852 853
{
	u32 rar_high;
854 855 856 857 858 859 860
	u32 rar_entries = hw->mac.num_rar_entries;

	/* Make sure we are using a valid rar index range */
	if (rar >= rar_entries) {
		hw_dbg(hw, "RAR index %d is out of range.\n", rar);
		return IXGBE_ERR_INVALID_ARGUMENT;
	}
861 862 863 864 865 866 867 868 869 870 871 872 873 874 875 876 877 878 879

	rar_high = IXGBE_READ_REG(hw, IXGBE_RAH(rar));
	rar_high &= ~IXGBE_RAH_VIND_MASK;
	rar_high |= ((vmdq << IXGBE_RAH_VIND_SHIFT) & IXGBE_RAH_VIND_MASK);
	IXGBE_WRITE_REG(hw, IXGBE_RAH(rar), rar_high);
	return 0;
}

/**
 *  ixgbe_clear_vmdq_82598 - Disassociate a VMDq set index from an rx address
 *  @hw: pointer to hardware struct
 *  @rar: receive address register index to associate with a VMDq index
 *  @vmdq: VMDq clear index (not used in 82598, but elsewhere)
 **/
static s32 ixgbe_clear_vmdq_82598(struct ixgbe_hw *hw, u32 rar, u32 vmdq)
{
	u32 rar_high;
	u32 rar_entries = hw->mac.num_rar_entries;

880 881 882

	/* Make sure we are using a valid rar index range */
	if (rar >= rar_entries) {
883
		hw_dbg(hw, "RAR index %d is out of range.\n", rar);
884 885 886 887 888 889 890
		return IXGBE_ERR_INVALID_ARGUMENT;
	}

	rar_high = IXGBE_READ_REG(hw, IXGBE_RAH(rar));
	if (rar_high & IXGBE_RAH_VIND_MASK) {
		rar_high &= ~IXGBE_RAH_VIND_MASK;
		IXGBE_WRITE_REG(hw, IXGBE_RAH(rar), rar_high);
891 892 893 894 895 896 897 898 899 900 901 902 903 904
	}

	return 0;
}

/**
 *  ixgbe_set_vfta_82598 - Set VLAN filter table
 *  @hw: pointer to hardware structure
 *  @vlan: VLAN id to write to VLAN filter
 *  @vind: VMDq output index that maps queue to VLAN id in VFTA
 *  @vlan_on: boolean flag to turn on/off VLAN in VFTA
 *
 *  Turn on/off specified VLAN in the VLAN filter table.
 **/
905 906
static s32 ixgbe_set_vfta_82598(struct ixgbe_hw *hw, u32 vlan, u32 vind,
				bool vlan_on)
907 908 909 910 911 912 913 914 915 916 917 918 919 920 921 922 923 924 925 926 927 928 929 930 931 932 933 934 935 936 937 938 939 940 941 942 943 944 945 946 947 948 949 950 951 952 953 954 955 956 957 958 959 960
{
	u32 regindex;
	u32 bitindex;
	u32 bits;
	u32 vftabyte;

	if (vlan > 4095)
		return IXGBE_ERR_PARAM;

	/* Determine 32-bit word position in array */
	regindex = (vlan >> 5) & 0x7F;   /* upper seven bits */

	/* Determine the location of the (VMD) queue index */
	vftabyte =  ((vlan >> 3) & 0x03); /* bits (4:3) indicating byte array */
	bitindex = (vlan & 0x7) << 2;    /* lower 3 bits indicate nibble */

	/* Set the nibble for VMD queue index */
	bits = IXGBE_READ_REG(hw, IXGBE_VFTAVIND(vftabyte, regindex));
	bits &= (~(0x0F << bitindex));
	bits |= (vind << bitindex);
	IXGBE_WRITE_REG(hw, IXGBE_VFTAVIND(vftabyte, regindex), bits);

	/* Determine the location of the bit for this VLAN id */
	bitindex = vlan & 0x1F;   /* lower five bits */

	bits = IXGBE_READ_REG(hw, IXGBE_VFTA(regindex));
	if (vlan_on)
		/* Turn on this VLAN id */
		bits |= (1 << bitindex);
	else
		/* Turn off this VLAN id */
		bits &= ~(1 << bitindex);
	IXGBE_WRITE_REG(hw, IXGBE_VFTA(regindex), bits);

	return 0;
}

/**
 *  ixgbe_clear_vfta_82598 - Clear VLAN filter table
 *  @hw: pointer to hardware structure
 *
 *  Clears the VLAN filer table, and the VMDq index associated with the filter
 **/
static s32 ixgbe_clear_vfta_82598(struct ixgbe_hw *hw)
{
	u32 offset;
	u32 vlanbyte;

	for (offset = 0; offset < hw->mac.vft_size; offset++)
		IXGBE_WRITE_REG(hw, IXGBE_VFTA(offset), 0);

	for (vlanbyte = 0; vlanbyte < 4; vlanbyte++)
		for (offset = 0; offset < hw->mac.vft_size; offset++)
			IXGBE_WRITE_REG(hw, IXGBE_VFTAVIND(vlanbyte, offset),
961
			                0);
962 963 964 965 966 967 968 969 970 971 972 973

	return 0;
}

/**
 *  ixgbe_read_analog_reg8_82598 - Reads 8 bit Atlas analog register
 *  @hw: pointer to hardware structure
 *  @reg: analog register to read
 *  @val: read value
 *
 *  Performs read operation to Atlas analog register specified.
 **/
974
static s32 ixgbe_read_analog_reg8_82598(struct ixgbe_hw *hw, u32 reg, u8 *val)
975 976 977 978 979 980 981 982 983 984 985 986 987 988 989 990 991 992 993 994 995
{
	u32  atlas_ctl;

	IXGBE_WRITE_REG(hw, IXGBE_ATLASCTL,
	                IXGBE_ATLASCTL_WRITE_CMD | (reg << 8));
	IXGBE_WRITE_FLUSH(hw);
	udelay(10);
	atlas_ctl = IXGBE_READ_REG(hw, IXGBE_ATLASCTL);
	*val = (u8)atlas_ctl;

	return 0;
}

/**
 *  ixgbe_write_analog_reg8_82598 - Writes 8 bit Atlas analog register
 *  @hw: pointer to hardware structure
 *  @reg: atlas register to write
 *  @val: value to write
 *
 *  Performs write operation to Atlas analog register specified.
 **/
996
static s32 ixgbe_write_analog_reg8_82598(struct ixgbe_hw *hw, u32 reg, u8 val)
997 998 999 1000 1001 1002 1003 1004 1005 1006 1007
{
	u32  atlas_ctl;

	atlas_ctl = (reg << 8) | val;
	IXGBE_WRITE_REG(hw, IXGBE_ATLASCTL, atlas_ctl);
	IXGBE_WRITE_FLUSH(hw);
	udelay(10);

	return 0;
}

D
Donald Skidmore 已提交
1008
/**
1009
 *  ixgbe_read_i2c_eeprom_82598 - Reads 8 bit word over I2C interface.
D
Donald Skidmore 已提交
1010 1011 1012 1013
 *  @hw: pointer to hardware structure
 *  @byte_offset: EEPROM byte offset to read
 *  @eeprom_data: value read
 *
1014
 *  Performs 8 byte read operation to SFP module's EEPROM over I2C interface.
D
Donald Skidmore 已提交
1015
 **/
1016 1017
static s32 ixgbe_read_i2c_eeprom_82598(struct ixgbe_hw *hw, u8 byte_offset,
				       u8 *eeprom_data)
D
Donald Skidmore 已提交
1018 1019 1020 1021 1022 1023 1024 1025 1026 1027 1028 1029 1030 1031 1032 1033 1034
{
	s32 status = 0;
	u16 sfp_addr = 0;
	u16 sfp_data = 0;
	u16 sfp_stat = 0;
	u32 i;

	if (hw->phy.type == ixgbe_phy_nl) {
		/*
		 * phy SDA/SCL registers are at addresses 0xC30A to
		 * 0xC30D.  These registers are used to talk to the SFP+
		 * module's EEPROM through the SDA/SCL (I2C) interface.
		 */
		sfp_addr = (IXGBE_I2C_EEPROM_DEV_ADDR << 8) + byte_offset;
		sfp_addr = (sfp_addr | IXGBE_I2C_EEPROM_READ_MASK);
		hw->phy.ops.write_reg(hw,
		                      IXGBE_MDIO_PMA_PMD_SDA_SCL_ADDR,
1035
		                      MDIO_MMD_PMAPMD,
D
Donald Skidmore 已提交
1036 1037 1038 1039 1040 1041
		                      sfp_addr);

		/* Poll status */
		for (i = 0; i < 100; i++) {
			hw->phy.ops.read_reg(hw,
			                     IXGBE_MDIO_PMA_PMD_SDA_SCL_STAT,
1042
			                     MDIO_MMD_PMAPMD,
D
Donald Skidmore 已提交
1043 1044 1045 1046
			                     &sfp_stat);
			sfp_stat = sfp_stat & IXGBE_I2C_EEPROM_STATUS_MASK;
			if (sfp_stat != IXGBE_I2C_EEPROM_STATUS_IN_PROGRESS)
				break;
1047
			usleep_range(10000, 20000);
D
Donald Skidmore 已提交
1048 1049 1050 1051 1052 1053 1054 1055 1056 1057
		}

		if (sfp_stat != IXGBE_I2C_EEPROM_STATUS_PASS) {
			hw_dbg(hw, "EEPROM read did not pass.\n");
			status = IXGBE_ERR_SFP_NOT_PRESENT;
			goto out;
		}

		/* Read data */
		hw->phy.ops.read_reg(hw, IXGBE_MDIO_PMA_PMD_SDA_SCL_DATA,
1058
		                     MDIO_MMD_PMAPMD, &sfp_data);
D
Donald Skidmore 已提交
1059 1060 1061 1062 1063 1064 1065 1066 1067 1068 1069

		*eeprom_data = (u8)(sfp_data >> 8);
	} else {
		status = IXGBE_ERR_PHY;
		goto out;
	}

out:
	return status;
}

1070 1071 1072 1073 1074 1075
/**
 *  ixgbe_get_supported_physical_layer_82598 - Returns physical layer type
 *  @hw: pointer to hardware structure
 *
 *  Determines physical layer capabilities of the current configuration.
 **/
1076
static u32 ixgbe_get_supported_physical_layer_82598(struct ixgbe_hw *hw)
1077
{
1078
	u32 physical_layer = IXGBE_PHYSICAL_LAYER_UNKNOWN;
1079 1080 1081 1082 1083 1084 1085 1086 1087
	u32 autoc = IXGBE_READ_REG(hw, IXGBE_AUTOC);
	u32 pma_pmd_10g = autoc & IXGBE_AUTOC_10G_PMA_PMD_MASK;
	u32 pma_pmd_1g = autoc & IXGBE_AUTOC_1G_PMA_PMD_MASK;
	u16 ext_ability = 0;

	hw->phy.ops.identify(hw);

	/* Copper PHY must be checked before AUTOC LMS to determine correct
	 * physical layer because 10GBase-T PHYs use LMS = KX4/KX */
E
Emil Tantilov 已提交
1088 1089 1090 1091 1092
	switch (hw->phy.type) {
	case ixgbe_phy_tn:
	case ixgbe_phy_cu_unknown:
		hw->phy.ops.read_reg(hw, MDIO_PMA_EXTABLE,
		MDIO_MMD_PMAPMD, &ext_ability);
1093
		if (ext_ability & MDIO_PMA_EXTABLE_10GBT)
1094
			physical_layer |= IXGBE_PHYSICAL_LAYER_10GBASE_T;
1095
		if (ext_ability & MDIO_PMA_EXTABLE_1000BT)
1096
			physical_layer |= IXGBE_PHYSICAL_LAYER_1000BASE_T;
1097
		if (ext_ability & MDIO_PMA_EXTABLE_100BTX)
1098 1099
			physical_layer |= IXGBE_PHYSICAL_LAYER_100BASE_TX;
		goto out;
E
Emil Tantilov 已提交
1100 1101
	default:
		break;
1102
	}
1103

1104 1105 1106 1107 1108 1109 1110
	switch (autoc & IXGBE_AUTOC_LMS_MASK) {
	case IXGBE_AUTOC_LMS_1G_AN:
	case IXGBE_AUTOC_LMS_1G_LINK_NO_AN:
		if (pma_pmd_1g == IXGBE_AUTOC_1G_KX)
			physical_layer = IXGBE_PHYSICAL_LAYER_1000BASE_KX;
		else
			physical_layer = IXGBE_PHYSICAL_LAYER_1000BASE_BX;
D
Donald Skidmore 已提交
1111
		break;
1112 1113 1114 1115 1116 1117 1118
	case IXGBE_AUTOC_LMS_10G_LINK_NO_AN:
		if (pma_pmd_10g == IXGBE_AUTOC_10G_CX4)
			physical_layer = IXGBE_PHYSICAL_LAYER_10GBASE_CX4;
		else if (pma_pmd_10g == IXGBE_AUTOC_10G_KX4)
			physical_layer = IXGBE_PHYSICAL_LAYER_10GBASE_KX4;
		else /* XAUI */
			physical_layer = IXGBE_PHYSICAL_LAYER_UNKNOWN;
1119
		break;
1120 1121 1122 1123 1124 1125
	case IXGBE_AUTOC_LMS_KX4_AN:
	case IXGBE_AUTOC_LMS_KX4_AN_1G_AN:
		if (autoc & IXGBE_AUTOC_KX_SUPP)
			physical_layer |= IXGBE_PHYSICAL_LAYER_1000BASE_KX;
		if (autoc & IXGBE_AUTOC_KX4_SUPP)
			physical_layer |= IXGBE_PHYSICAL_LAYER_10GBASE_KX4;
1126
		break;
1127
	default:
1128
		break;
1129 1130 1131
	}

	if (hw->phy.type == ixgbe_phy_nl) {
D
Donald Skidmore 已提交
1132 1133 1134 1135 1136 1137 1138 1139 1140 1141 1142 1143 1144 1145 1146 1147
		hw->phy.ops.identify_sfp(hw);

		switch (hw->phy.sfp_type) {
		case ixgbe_sfp_type_da_cu:
			physical_layer = IXGBE_PHYSICAL_LAYER_SFP_PLUS_CU;
			break;
		case ixgbe_sfp_type_sr:
			physical_layer = IXGBE_PHYSICAL_LAYER_10GBASE_SR;
			break;
		case ixgbe_sfp_type_lr:
			physical_layer = IXGBE_PHYSICAL_LAYER_10GBASE_LR;
			break;
		default:
			physical_layer = IXGBE_PHYSICAL_LAYER_UNKNOWN;
			break;
		}
1148
	}
1149

1150 1151 1152 1153 1154 1155 1156 1157 1158 1159 1160 1161
	switch (hw->device_id) {
	case IXGBE_DEV_ID_82598_DA_DUAL_PORT:
		physical_layer = IXGBE_PHYSICAL_LAYER_SFP_PLUS_CU;
		break;
	case IXGBE_DEV_ID_82598AF_DUAL_PORT:
	case IXGBE_DEV_ID_82598AF_SINGLE_PORT:
	case IXGBE_DEV_ID_82598_SR_DUAL_PORT_EM:
		physical_layer = IXGBE_PHYSICAL_LAYER_10GBASE_SR;
		break;
	case IXGBE_DEV_ID_82598EB_XF_LR:
		physical_layer = IXGBE_PHYSICAL_LAYER_10GBASE_LR;
		break;
1162 1163 1164 1165
	default:
		break;
	}

1166
out:
1167 1168 1169
	return physical_layer;
}

1170 1171 1172 1173 1174 1175 1176 1177 1178 1179 1180 1181 1182 1183 1184 1185 1186 1187 1188 1189 1190 1191 1192 1193 1194 1195 1196 1197 1198 1199 1200 1201
/**
 *  ixgbe_set_lan_id_multi_port_pcie_82598 - Set LAN id for PCIe multiple
 *  port devices.
 *  @hw: pointer to the HW structure
 *
 *  Calls common function and corrects issue with some single port devices
 *  that enable LAN1 but not LAN0.
 **/
static void ixgbe_set_lan_id_multi_port_pcie_82598(struct ixgbe_hw *hw)
{
	struct ixgbe_bus_info *bus = &hw->bus;
	u16 pci_gen = 0;
	u16 pci_ctrl2 = 0;

	ixgbe_set_lan_id_multi_port_pcie(hw);

	/* check if LAN0 is disabled */
	hw->eeprom.ops.read(hw, IXGBE_PCIE_GENERAL_PTR, &pci_gen);
	if ((pci_gen != 0) && (pci_gen != 0xFFFF)) {

		hw->eeprom.ops.read(hw, pci_gen + IXGBE_PCIE_CTRL2, &pci_ctrl2);

		/* if LAN0 is completely disabled force function to 0 */
		if ((pci_ctrl2 & IXGBE_PCIE_CTRL2_LAN_DISABLE) &&
		    !(pci_ctrl2 & IXGBE_PCIE_CTRL2_DISABLE_SELECT) &&
		    !(pci_ctrl2 & IXGBE_PCIE_CTRL2_DUMMY_ENABLE)) {

			bus->func = 0;
		}
	}
}

1202 1203 1204 1205 1206 1207 1208 1209 1210 1211 1212 1213 1214 1215 1216 1217 1218 1219 1220 1221 1222 1223 1224 1225 1226 1227 1228 1229 1230 1231 1232 1233 1234 1235 1236 1237 1238 1239 1240 1241 1242
/**
 * ixgbe_set_rxpba_82598 - Configure packet buffers
 * @hw: pointer to hardware structure
 * @dcb_config: pointer to ixgbe_dcb_config structure
 *
 * Configure packet buffers.
 */
static void ixgbe_set_rxpba_82598(struct ixgbe_hw *hw, int num_pb, u32 headroom,
				  int strategy)
{
	u32 rxpktsize = IXGBE_RXPBSIZE_64KB;
	u8  i = 0;

	if (!num_pb)
		return;

	/* Setup Rx packet buffer sizes */
	switch (strategy) {
	case PBA_STRATEGY_WEIGHTED:
		/* Setup the first four at 80KB */
		rxpktsize = IXGBE_RXPBSIZE_80KB;
		for (; i < 4; i++)
			IXGBE_WRITE_REG(hw, IXGBE_RXPBSIZE(i), rxpktsize);
		/* Setup the last four at 48KB...don't re-init i */
		rxpktsize = IXGBE_RXPBSIZE_48KB;
		/* Fall Through */
	case PBA_STRATEGY_EQUAL:
	default:
		/* Divide the remaining Rx packet buffer evenly among the TCs */
		for (; i < IXGBE_MAX_PACKET_BUFFERS; i++)
			IXGBE_WRITE_REG(hw, IXGBE_RXPBSIZE(i), rxpktsize);
		break;
	}

	/* Setup Tx packet buffer sizes */
	for (i = 0; i < IXGBE_MAX_PACKET_BUFFERS; i++)
		IXGBE_WRITE_REG(hw, IXGBE_TXPBSIZE(i), IXGBE_TXPBSIZE_40KB);

	return;
}

1243
static struct ixgbe_mac_operations mac_ops_82598 = {
1244 1245
	.init_hw		= &ixgbe_init_hw_generic,
	.reset_hw		= &ixgbe_reset_hw_82598,
1246
	.start_hw		= &ixgbe_start_hw_82598,
1247
	.clear_hw_cntrs		= &ixgbe_clear_hw_cntrs_generic,
1248
	.get_media_type		= &ixgbe_get_media_type_82598,
1249
	.get_supported_physical_layer = &ixgbe_get_supported_physical_layer_82598,
1250
	.enable_rx_dma          = &ixgbe_enable_rx_dma_generic,
1251 1252
	.get_mac_addr		= &ixgbe_get_mac_addr_generic,
	.stop_adapter		= &ixgbe_stop_adapter_generic,
1253
	.get_bus_info           = &ixgbe_get_bus_info_generic,
1254
	.set_lan_id             = &ixgbe_set_lan_id_multi_port_pcie_82598,
1255 1256
	.read_analog_reg8	= &ixgbe_read_analog_reg8_82598,
	.write_analog_reg8	= &ixgbe_write_analog_reg8_82598,
1257
	.setup_link		= &ixgbe_setup_mac_link_82598,
1258
	.set_rxpba		= &ixgbe_set_rxpba_82598,
1259 1260 1261 1262
	.check_link		= &ixgbe_check_mac_link_82598,
	.get_link_capabilities	= &ixgbe_get_link_capabilities_82598,
	.led_on			= &ixgbe_led_on_generic,
	.led_off		= &ixgbe_led_off_generic,
1263 1264
	.blink_led_start	= &ixgbe_blink_led_start_generic,
	.blink_led_stop		= &ixgbe_blink_led_stop_generic,
1265 1266 1267 1268 1269 1270 1271 1272 1273 1274
	.set_rar		= &ixgbe_set_rar_generic,
	.clear_rar		= &ixgbe_clear_rar_generic,
	.set_vmdq		= &ixgbe_set_vmdq_82598,
	.clear_vmdq		= &ixgbe_clear_vmdq_82598,
	.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_82598,
	.set_vfta		= &ixgbe_set_vfta_82598,
1275
	.fc_enable		= &ixgbe_fc_enable_82598,
E
Emil Tantilov 已提交
1276
	.set_fw_drv_ver         = NULL,
1277 1278
	.acquire_swfw_sync      = &ixgbe_acquire_swfw_sync,
	.release_swfw_sync      = &ixgbe_release_swfw_sync,
1279 1280
	.get_thermal_sensor_data = NULL,
	.init_thermal_sensor_thresh = NULL,
1281 1282 1283 1284
};

static struct ixgbe_eeprom_operations eeprom_ops_82598 = {
	.init_params		= &ixgbe_init_eeprom_params_generic,
1285
	.read			= &ixgbe_read_eerd_generic,
1286 1287
	.write			= &ixgbe_write_eeprom_generic,
	.write_buffer		= &ixgbe_write_eeprom_buffer_bit_bang_generic,
1288
	.read_buffer		= &ixgbe_read_eerd_buffer_generic,
1289
	.calc_checksum          = &ixgbe_calc_eeprom_checksum_generic,
1290 1291 1292 1293 1294 1295
	.validate_checksum	= &ixgbe_validate_eeprom_checksum_generic,
	.update_checksum	= &ixgbe_update_eeprom_checksum_generic,
};

static struct ixgbe_phy_operations phy_ops_82598 = {
	.identify		= &ixgbe_identify_phy_generic,
D
Donald Skidmore 已提交
1296
	.identify_sfp		= &ixgbe_identify_sfp_module_generic,
1297
	.init			= &ixgbe_init_phy_ops_82598,
1298 1299 1300 1301 1302
	.reset			= &ixgbe_reset_phy_generic,
	.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,
D
Donald Skidmore 已提交
1303
	.read_i2c_eeprom	= &ixgbe_read_i2c_eeprom_82598,
1304
	.check_overtemp   = &ixgbe_tn_check_overtemp,
1305 1306
};

1307
struct ixgbe_info ixgbe_82598_info = {
1308 1309 1310
	.mac			= ixgbe_mac_82598EB,
	.get_invariants		= &ixgbe_get_invariants_82598,
	.mac_ops		= &mac_ops_82598,
1311 1312
	.eeprom_ops		= &eeprom_ops_82598,
	.phy_ops		= &phy_ops_82598,
1313 1314
};