root/drivers/net/ethernet/intel/ixgbe/ixgbe_ethtool.c
// SPDX-License-Identifier: GPL-2.0
/* Copyright(c) 1999 - 2024 Intel Corporation. */

/* ethtool support for ixgbe */

#include <linux/interrupt.h>
#include <linux/types.h>
#include <linux/module.h>
#include <linux/slab.h>
#include <linux/pci.h>
#include <linux/netdevice.h>
#include <linux/ethtool.h>
#include <linux/vmalloc.h>
#include <linux/highmem.h>
#include <linux/uaccess.h>

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


enum {NETDEV_STATS, IXGBE_STATS};

struct ixgbe_stats {
        char stat_string[ETH_GSTRING_LEN];
        int type;
        int sizeof_stat;
        int stat_offset;
};

#define IXGBE_STAT(m)           IXGBE_STATS, \
                                sizeof(((struct ixgbe_adapter *)0)->m), \
                                offsetof(struct ixgbe_adapter, m)
#define IXGBE_NETDEV_STAT(m)    NETDEV_STATS, \
                                sizeof(((struct rtnl_link_stats64 *)0)->m), \
                                offsetof(struct rtnl_link_stats64, m)

static const struct ixgbe_stats ixgbe_gstrings_stats[] = {
        {"rx_packets", IXGBE_NETDEV_STAT(rx_packets)},
        {"tx_packets", IXGBE_NETDEV_STAT(tx_packets)},
        {"rx_bytes", IXGBE_NETDEV_STAT(rx_bytes)},
        {"tx_bytes", IXGBE_NETDEV_STAT(tx_bytes)},
        {"rx_pkts_nic", IXGBE_STAT(stats.gprc)},
        {"tx_pkts_nic", IXGBE_STAT(stats.gptc)},
        {"rx_bytes_nic", IXGBE_STAT(stats.gorc)},
        {"tx_bytes_nic", IXGBE_STAT(stats.gotc)},
        {"lsc_int", IXGBE_STAT(lsc_int)},
        {"tx_busy", IXGBE_STAT(tx_busy)},
        {"non_eop_descs", IXGBE_STAT(non_eop_descs)},
        {"rx_errors", IXGBE_NETDEV_STAT(rx_errors)},
        {"tx_errors", IXGBE_NETDEV_STAT(tx_errors)},
        {"rx_dropped", IXGBE_NETDEV_STAT(rx_dropped)},
        {"tx_dropped", IXGBE_NETDEV_STAT(tx_dropped)},
        {"multicast", IXGBE_NETDEV_STAT(multicast)},
        {"broadcast", IXGBE_STAT(stats.bprc)},
        {"rx_no_buffer_count", IXGBE_STAT(stats.rnbc[0]) },
        {"collisions", IXGBE_NETDEV_STAT(collisions)},
        {"rx_over_errors", IXGBE_NETDEV_STAT(rx_over_errors)},
        {"rx_crc_errors", IXGBE_NETDEV_STAT(rx_crc_errors)},
        {"rx_frame_errors", IXGBE_NETDEV_STAT(rx_frame_errors)},
        {"hw_rsc_aggregated", IXGBE_STAT(rsc_total_count)},
        {"hw_rsc_flushed", IXGBE_STAT(rsc_total_flush)},
        {"fdir_match", IXGBE_STAT(stats.fdirmatch)},
        {"fdir_miss", IXGBE_STAT(stats.fdirmiss)},
        {"fdir_overflow", IXGBE_STAT(fdir_overflow)},
        {"rx_fifo_errors", IXGBE_NETDEV_STAT(rx_fifo_errors)},
        {"rx_missed_errors", IXGBE_NETDEV_STAT(rx_missed_errors)},
        {"tx_aborted_errors", IXGBE_NETDEV_STAT(tx_aborted_errors)},
        {"tx_carrier_errors", IXGBE_NETDEV_STAT(tx_carrier_errors)},
        {"tx_fifo_errors", IXGBE_NETDEV_STAT(tx_fifo_errors)},
        {"tx_heartbeat_errors", IXGBE_NETDEV_STAT(tx_heartbeat_errors)},
        {"tx_timeout_count", IXGBE_STAT(tx_timeout_count)},
        {"tx_restart_queue", IXGBE_STAT(restart_queue)},
        {"rx_length_errors", IXGBE_STAT(stats.rlec)},
        {"rx_long_length_errors", IXGBE_STAT(stats.roc)},
        {"rx_short_length_errors", IXGBE_STAT(stats.ruc)},
        {"tx_flow_control_xon", IXGBE_STAT(stats.lxontxc)},
        {"rx_flow_control_xon", IXGBE_STAT(stats.lxonrxc)},
        {"tx_flow_control_xoff", IXGBE_STAT(stats.lxofftxc)},
        {"rx_flow_control_xoff", IXGBE_STAT(stats.lxoffrxc)},
        {"rx_csum_offload_errors", IXGBE_STAT(hw_csum_rx_error)},
        {"alloc_rx_page", IXGBE_STAT(alloc_rx_page)},
        {"alloc_rx_page_failed", IXGBE_STAT(alloc_rx_page_failed)},
        {"alloc_rx_buff_failed", IXGBE_STAT(alloc_rx_buff_failed)},
        {"rx_no_dma_resources", IXGBE_STAT(hw_rx_no_dma_resources)},
        {"os2bmc_rx_by_bmc", IXGBE_STAT(stats.o2bgptc)},
        {"os2bmc_tx_by_bmc", IXGBE_STAT(stats.b2ospc)},
        {"os2bmc_tx_by_host", IXGBE_STAT(stats.o2bspc)},
        {"os2bmc_rx_by_host", IXGBE_STAT(stats.b2ogprc)},
        {"tx_hwtstamp_timeouts", IXGBE_STAT(tx_hwtstamp_timeouts)},
        {"tx_hwtstamp_skipped", IXGBE_STAT(tx_hwtstamp_skipped)},
        {"rx_hwtstamp_cleared", IXGBE_STAT(rx_hwtstamp_cleared)},
        {"tx_ipsec", IXGBE_STAT(tx_ipsec)},
        {"rx_ipsec", IXGBE_STAT(rx_ipsec)},
#ifdef IXGBE_FCOE
        {"fcoe_bad_fccrc", IXGBE_STAT(stats.fccrc)},
        {"rx_fcoe_dropped", IXGBE_STAT(stats.fcoerpdc)},
        {"rx_fcoe_packets", IXGBE_STAT(stats.fcoeprc)},
        {"rx_fcoe_dwords", IXGBE_STAT(stats.fcoedwrc)},
        {"fcoe_noddp", IXGBE_STAT(stats.fcoe_noddp)},
        {"fcoe_noddp_ext_buff", IXGBE_STAT(stats.fcoe_noddp_ext_buff)},
        {"tx_fcoe_packets", IXGBE_STAT(stats.fcoeptc)},
        {"tx_fcoe_dwords", IXGBE_STAT(stats.fcoedwtc)},
#endif /* IXGBE_FCOE */
};

/* ixgbe allocates num_tx_queues and num_rx_queues symmetrically so
 * we set the num_rx_queues to evaluate to num_tx_queues. This is
 * used because we do not have a good way to get the max number of
 * rx queues with CONFIG_RPS disabled.
 */
#define IXGBE_NUM_RX_QUEUES netdev->num_tx_queues

#define IXGBE_QUEUE_STATS_LEN ( \
        (netdev->num_tx_queues + IXGBE_NUM_RX_QUEUES) * \
        (sizeof(struct ixgbe_queue_stats) / sizeof(u64)))
#define IXGBE_GLOBAL_STATS_LEN ARRAY_SIZE(ixgbe_gstrings_stats)
#define IXGBE_PB_STATS_LEN ( \
                        (sizeof(((struct ixgbe_adapter *)0)->stats.pxonrxc) + \
                         sizeof(((struct ixgbe_adapter *)0)->stats.pxontxc) + \
                         sizeof(((struct ixgbe_adapter *)0)->stats.pxoffrxc) + \
                         sizeof(((struct ixgbe_adapter *)0)->stats.pxofftxc)) \
                        / sizeof(u64))
#define IXGBE_STATS_LEN (IXGBE_GLOBAL_STATS_LEN + \
                         IXGBE_PB_STATS_LEN + \
                         IXGBE_QUEUE_STATS_LEN)

static const char ixgbe_gstrings_test[][ETH_GSTRING_LEN] = {
        "Register test  (offline)", "Eeprom test    (offline)",
        "Interrupt test (offline)", "Loopback test  (offline)",
        "Link test   (on/offline)"
};
#define IXGBE_TEST_LEN sizeof(ixgbe_gstrings_test) / ETH_GSTRING_LEN

static const char ixgbe_priv_flags_strings[][ETH_GSTRING_LEN] = {
#define IXGBE_PRIV_FLAGS_LEGACY_RX      BIT(0)
        "legacy-rx",
#define IXGBE_PRIV_FLAGS_VF_IPSEC_EN    BIT(1)
        "vf-ipsec",
#define IXGBE_PRIV_FLAGS_AUTO_DISABLE_VF        BIT(2)
        "mdd-disable-vf",
};

#define IXGBE_PRIV_FLAGS_STR_LEN ARRAY_SIZE(ixgbe_priv_flags_strings)

#define ixgbe_isbackplane(type) ((type) == ixgbe_media_type_backplane)

static void ixgbe_set_supported_10gtypes(struct ixgbe_hw *hw,
                                         struct ethtool_link_ksettings *cmd)
{
        if (!ixgbe_isbackplane(hw->phy.media_type)) {
                ethtool_link_ksettings_add_link_mode(cmd, supported,
                                                     10000baseT_Full);
                return;
        }

        switch (hw->device_id) {
        case IXGBE_DEV_ID_82598:
        case IXGBE_DEV_ID_82599_KX4:
        case IXGBE_DEV_ID_82599_KX4_MEZZ:
        case IXGBE_DEV_ID_X550EM_X_KX4:
                ethtool_link_ksettings_add_link_mode
                        (cmd, supported, 10000baseKX4_Full);
                break;
        case IXGBE_DEV_ID_82598_BX:
        case IXGBE_DEV_ID_82599_KR:
        case IXGBE_DEV_ID_X550EM_X_KR:
        case IXGBE_DEV_ID_X550EM_X_XFI:
                ethtool_link_ksettings_add_link_mode
                        (cmd, supported, 10000baseKR_Full);
                break;
        default:
                ethtool_link_ksettings_add_link_mode
                        (cmd, supported, 10000baseKX4_Full);
                ethtool_link_ksettings_add_link_mode
                        (cmd, supported, 10000baseKR_Full);
                break;
        }
}

static void ixgbe_set_advertising_10gtypes(struct ixgbe_hw *hw,
                                           struct ethtool_link_ksettings *cmd)
{
        if (!ixgbe_isbackplane(hw->phy.media_type)) {
                ethtool_link_ksettings_add_link_mode(cmd, advertising,
                                                     10000baseT_Full);
                return;
        }

        switch (hw->device_id) {
        case IXGBE_DEV_ID_82598:
        case IXGBE_DEV_ID_82599_KX4:
        case IXGBE_DEV_ID_82599_KX4_MEZZ:
        case IXGBE_DEV_ID_X550EM_X_KX4:
                ethtool_link_ksettings_add_link_mode
                        (cmd, advertising, 10000baseKX4_Full);
                break;
        case IXGBE_DEV_ID_82598_BX:
        case IXGBE_DEV_ID_82599_KR:
        case IXGBE_DEV_ID_X550EM_X_KR:
        case IXGBE_DEV_ID_X550EM_X_XFI:
                ethtool_link_ksettings_add_link_mode
                        (cmd, advertising, 10000baseKR_Full);
                break;
        default:
                ethtool_link_ksettings_add_link_mode
                        (cmd, advertising, 10000baseKX4_Full);
                ethtool_link_ksettings_add_link_mode
                        (cmd, advertising, 10000baseKR_Full);
                break;
        }
}

static int ixgbe_get_link_ksettings(struct net_device *netdev,
                                    struct ethtool_link_ksettings *cmd)
{
        struct ixgbe_adapter *adapter = ixgbe_from_netdev(netdev);
        struct ixgbe_hw *hw = &adapter->hw;
        ixgbe_link_speed supported_link;
        bool autoneg = false;

        ethtool_link_ksettings_zero_link_mode(cmd, supported);
        ethtool_link_ksettings_zero_link_mode(cmd, advertising);

        hw->mac.ops.get_link_capabilities(hw, &supported_link, &autoneg);

        /* set the supported link speeds */
        if (supported_link & IXGBE_LINK_SPEED_10GB_FULL) {
                ixgbe_set_supported_10gtypes(hw, cmd);
                ixgbe_set_advertising_10gtypes(hw, cmd);
        }
        if (supported_link & IXGBE_LINK_SPEED_5GB_FULL)
                ethtool_link_ksettings_add_link_mode(cmd, supported,
                                                     5000baseT_Full);

        if (supported_link & IXGBE_LINK_SPEED_2_5GB_FULL)
                ethtool_link_ksettings_add_link_mode(cmd, supported,
                                                     2500baseT_Full);

        if (supported_link & IXGBE_LINK_SPEED_1GB_FULL) {
                if (ixgbe_isbackplane(hw->phy.media_type)) {
                        ethtool_link_ksettings_add_link_mode(cmd, supported,
                                                             1000baseKX_Full);
                        ethtool_link_ksettings_add_link_mode(cmd, advertising,
                                                             1000baseKX_Full);
                } else {
                        ethtool_link_ksettings_add_link_mode(cmd, supported,
                                                             1000baseT_Full);
                        ethtool_link_ksettings_add_link_mode(cmd, advertising,
                                                             1000baseT_Full);
                }
        }
        if (supported_link & IXGBE_LINK_SPEED_100_FULL) {
                ethtool_link_ksettings_add_link_mode(cmd, supported,
                                                     100baseT_Full);
                ethtool_link_ksettings_add_link_mode(cmd, advertising,
                                                     100baseT_Full);
        }
        if (supported_link & IXGBE_LINK_SPEED_10_FULL) {
                ethtool_link_ksettings_add_link_mode(cmd, supported,
                                                     10baseT_Full);
                ethtool_link_ksettings_add_link_mode(cmd, advertising,
                                                     10baseT_Full);
        }

        /* set the advertised speeds */
        if (hw->phy.autoneg_advertised) {
                ethtool_link_ksettings_zero_link_mode(cmd, advertising);
                if (hw->phy.autoneg_advertised & IXGBE_LINK_SPEED_10_FULL)
                        ethtool_link_ksettings_add_link_mode(cmd, advertising,
                                                             10baseT_Full);
                if (hw->phy.autoneg_advertised & IXGBE_LINK_SPEED_100_FULL)
                        ethtool_link_ksettings_add_link_mode(cmd, advertising,
                                                             100baseT_Full);
                if (hw->phy.autoneg_advertised & IXGBE_LINK_SPEED_10GB_FULL)
                        ixgbe_set_advertising_10gtypes(hw, cmd);
                if (hw->phy.autoneg_advertised & IXGBE_LINK_SPEED_1GB_FULL) {
                        if (ethtool_link_ksettings_test_link_mode
                                (cmd, supported, 1000baseKX_Full))
                                ethtool_link_ksettings_add_link_mode
                                        (cmd, advertising, 1000baseKX_Full);
                        else
                                ethtool_link_ksettings_add_link_mode
                                        (cmd, advertising, 1000baseT_Full);
                }
                if (hw->phy.autoneg_advertised & IXGBE_LINK_SPEED_5GB_FULL)
                        ethtool_link_ksettings_add_link_mode(cmd, advertising,
                                                             5000baseT_Full);
                if (hw->phy.autoneg_advertised & IXGBE_LINK_SPEED_2_5GB_FULL)
                        ethtool_link_ksettings_add_link_mode(cmd, advertising,
                                                             2500baseT_Full);
        } else {
                if (hw->phy.multispeed_fiber && !autoneg) {
                        if (supported_link & IXGBE_LINK_SPEED_10GB_FULL)
                                ethtool_link_ksettings_add_link_mode
                                        (cmd, advertising, 10000baseT_Full);
                }
        }

        if (autoneg) {
                ethtool_link_ksettings_add_link_mode(cmd, supported, Autoneg);
                ethtool_link_ksettings_add_link_mode(cmd, advertising, Autoneg);
                cmd->base.autoneg = AUTONEG_ENABLE;
        } else
                cmd->base.autoneg = AUTONEG_DISABLE;

        /* Determine the remaining settings based on the PHY type. */
        switch (adapter->hw.phy.type) {
        case ixgbe_phy_tn:
        case ixgbe_phy_aq:
        case ixgbe_phy_x550em_ext_t:
        case ixgbe_phy_fw:
        case ixgbe_phy_cu_unknown:
                ethtool_link_ksettings_add_link_mode(cmd, supported, TP);
                ethtool_link_ksettings_add_link_mode(cmd, advertising, TP);
                cmd->base.port = PORT_TP;
                break;
        case ixgbe_phy_qt:
                ethtool_link_ksettings_add_link_mode(cmd, supported, FIBRE);
                ethtool_link_ksettings_add_link_mode(cmd, advertising, FIBRE);
                cmd->base.port = PORT_FIBRE;
                break;
        case ixgbe_phy_nl:
        case ixgbe_phy_sfp_passive_tyco:
        case ixgbe_phy_sfp_passive_unknown:
        case ixgbe_phy_sfp_ftl:
        case ixgbe_phy_sfp_avago:
        case ixgbe_phy_sfp_intel:
        case ixgbe_phy_sfp_unknown:
        case ixgbe_phy_qsfp_passive_unknown:
        case ixgbe_phy_qsfp_active_unknown:
        case ixgbe_phy_qsfp_intel:
        case ixgbe_phy_qsfp_unknown:
                /* SFP+ devices, further checking needed */
                switch (adapter->hw.phy.sfp_type) {
                case ixgbe_sfp_type_da_cu:
                case ixgbe_sfp_type_da_cu_core0:
                case ixgbe_sfp_type_da_cu_core1:
                        ethtool_link_ksettings_add_link_mode(cmd, supported,
                                                             FIBRE);
                        ethtool_link_ksettings_add_link_mode(cmd, advertising,
                                                             FIBRE);
                        cmd->base.port = PORT_DA;
                        break;
                case ixgbe_sfp_type_sr:
                case ixgbe_sfp_type_lr:
                case ixgbe_sfp_type_srlr_core0:
                case ixgbe_sfp_type_srlr_core1:
                case ixgbe_sfp_type_1g_sx_core0:
                case ixgbe_sfp_type_1g_sx_core1:
                case ixgbe_sfp_type_1g_lx_core0:
                case ixgbe_sfp_type_1g_lx_core1:
                case ixgbe_sfp_type_1g_bx_core0:
                case ixgbe_sfp_type_1g_bx_core1:
                case ixgbe_sfp_type_10g_bx_core0:
                case ixgbe_sfp_type_10g_bx_core1:
                        ethtool_link_ksettings_add_link_mode(cmd, supported,
                                                             FIBRE);
                        ethtool_link_ksettings_add_link_mode(cmd, advertising,
                                                             FIBRE);
                        cmd->base.port = PORT_FIBRE;
                        break;
                case ixgbe_sfp_type_not_present:
                        ethtool_link_ksettings_add_link_mode(cmd, supported,
                                                             FIBRE);
                        ethtool_link_ksettings_add_link_mode(cmd, advertising,
                                                             FIBRE);
                        cmd->base.port = PORT_NONE;
                        break;
                case ixgbe_sfp_type_1g_cu_core0:
                case ixgbe_sfp_type_1g_cu_core1:
                        ethtool_link_ksettings_add_link_mode(cmd, supported,
                                                             TP);
                        ethtool_link_ksettings_add_link_mode(cmd, advertising,
                                                             TP);
                        cmd->base.port = PORT_TP;
                        break;
                case ixgbe_sfp_type_unknown:
                default:
                        ethtool_link_ksettings_add_link_mode(cmd, supported,
                                                             FIBRE);
                        ethtool_link_ksettings_add_link_mode(cmd, advertising,
                                                             FIBRE);
                        cmd->base.port = PORT_OTHER;
                        break;
                }
                break;
        case ixgbe_phy_xaui:
                ethtool_link_ksettings_add_link_mode(cmd, supported,
                                                     FIBRE);
                ethtool_link_ksettings_add_link_mode(cmd, advertising,
                                                     FIBRE);
                cmd->base.port = PORT_NONE;
                break;
        case ixgbe_phy_unknown:
        case ixgbe_phy_generic:
        case ixgbe_phy_sfp_unsupported:
        default:
                ethtool_link_ksettings_add_link_mode(cmd, supported,
                                                     FIBRE);
                ethtool_link_ksettings_add_link_mode(cmd, advertising,
                                                     FIBRE);
                cmd->base.port = PORT_OTHER;
                break;
        }

        /* Indicate pause support */
        ethtool_link_ksettings_add_link_mode(cmd, supported, Pause);

        switch (hw->fc.requested_mode) {
        case ixgbe_fc_full:
                ethtool_link_ksettings_add_link_mode(cmd, advertising, Pause);
                break;
        case ixgbe_fc_rx_pause:
                ethtool_link_ksettings_add_link_mode(cmd, advertising, Pause);
                ethtool_link_ksettings_add_link_mode(cmd, advertising,
                                                     Asym_Pause);
                break;
        case ixgbe_fc_tx_pause:
                ethtool_link_ksettings_add_link_mode(cmd, advertising,
                                                     Asym_Pause);
                break;
        default:
                ethtool_link_ksettings_del_link_mode(cmd, advertising, Pause);
                ethtool_link_ksettings_del_link_mode(cmd, advertising,
                                                     Asym_Pause);
        }

        if (netif_carrier_ok(netdev)) {
                switch (adapter->link_speed) {
                case IXGBE_LINK_SPEED_10GB_FULL:
                        cmd->base.speed = SPEED_10000;
                        break;
                case IXGBE_LINK_SPEED_5GB_FULL:
                        cmd->base.speed = SPEED_5000;
                        break;
                case IXGBE_LINK_SPEED_2_5GB_FULL:
                        cmd->base.speed = SPEED_2500;
                        break;
                case IXGBE_LINK_SPEED_1GB_FULL:
                        cmd->base.speed = SPEED_1000;
                        break;
                case IXGBE_LINK_SPEED_100_FULL:
                        cmd->base.speed = SPEED_100;
                        break;
                case IXGBE_LINK_SPEED_10_FULL:
                        cmd->base.speed = SPEED_10;
                        break;
                default:
                        break;
                }
                cmd->base.duplex = DUPLEX_FULL;
        } else {
                cmd->base.speed = SPEED_UNKNOWN;
                cmd->base.duplex = DUPLEX_UNKNOWN;
        }

        return 0;
}

static int ixgbe_set_link_ksettings(struct net_device *netdev,
                                    const struct ethtool_link_ksettings *cmd)
{
        struct ixgbe_adapter *adapter = ixgbe_from_netdev(netdev);
        struct ixgbe_hw *hw = &adapter->hw;
        u32 advertised, old;
        int err = 0;

        if ((hw->phy.media_type == ixgbe_media_type_copper) ||
            (hw->phy.multispeed_fiber)) {
                /*
                 * this function does not support duplex forcing, but can
                 * limit the advertising of the adapter to the specified speed
                 */
                if (!linkmode_subset(cmd->link_modes.advertising,
                                     cmd->link_modes.supported))
                        return -EINVAL;

                /* only allow one speed at a time if no autoneg */
                if (!cmd->base.autoneg && hw->phy.multispeed_fiber) {
                        if (ethtool_link_ksettings_test_link_mode(cmd, advertising,
                                                                  10000baseT_Full) &&
                            ethtool_link_ksettings_test_link_mode(cmd, advertising,
                                                                  1000baseT_Full))
                                return -EINVAL;
                }

                old = hw->phy.autoneg_advertised;
                advertised = 0;
                if (ethtool_link_ksettings_test_link_mode(cmd, advertising,
                                                          10000baseT_Full))
                        advertised |= IXGBE_LINK_SPEED_10GB_FULL;
                if (ethtool_link_ksettings_test_link_mode(cmd, advertising,
                                                          5000baseT_Full))
                        advertised |= IXGBE_LINK_SPEED_5GB_FULL;
                if (ethtool_link_ksettings_test_link_mode(cmd, advertising,
                                                          2500baseT_Full))
                        advertised |= IXGBE_LINK_SPEED_2_5GB_FULL;
                if (ethtool_link_ksettings_test_link_mode(cmd, advertising,
                                                          1000baseT_Full))
                        advertised |= IXGBE_LINK_SPEED_1GB_FULL;

                if (ethtool_link_ksettings_test_link_mode(cmd, advertising,
                                                          100baseT_Full))
                        advertised |= IXGBE_LINK_SPEED_100_FULL;

                if (ethtool_link_ksettings_test_link_mode(cmd, advertising,
                                                          10baseT_Full))
                        advertised |= IXGBE_LINK_SPEED_10_FULL;

                if (old == advertised)
                        return err;
                /* this sets the link speed and restarts auto-neg */
                while (test_and_set_bit(__IXGBE_IN_SFP_INIT, &adapter->state))
                        usleep_range(1000, 2000);

                hw->mac.autotry_restart = true;
                err = hw->mac.ops.setup_link(hw, advertised, true);
                if (err) {
                        e_info(probe, "setup link failed with code %d\n", err);
                        hw->mac.ops.setup_link(hw, old, true);
                }
                clear_bit(__IXGBE_IN_SFP_INIT, &adapter->state);
        } else {
                /* in this case we currently only support 10Gb/FULL */
                u32 speed = cmd->base.speed;

                if ((cmd->base.autoneg == AUTONEG_ENABLE) ||
                    (!ethtool_link_ksettings_test_link_mode(cmd, advertising,
                                                            10000baseT_Full)) ||
                    (speed + cmd->base.duplex != SPEED_10000 + DUPLEX_FULL))
                        return -EINVAL;
        }

        return err;
}

static void ixgbe_get_pause_stats(struct net_device *netdev,
                                  struct ethtool_pause_stats *stats)
{
        struct ixgbe_adapter *adapter = ixgbe_from_netdev(netdev);
        struct ixgbe_hw_stats *hwstats = &adapter->stats;

        stats->tx_pause_frames = hwstats->lxontxc + hwstats->lxofftxc;
        stats->rx_pause_frames = hwstats->lxonrxc + hwstats->lxoffrxc;
}

static void ixgbe_get_pauseparam(struct net_device *netdev,
                                 struct ethtool_pauseparam *pause)
{
        struct ixgbe_adapter *adapter = ixgbe_from_netdev(netdev);
        struct ixgbe_hw *hw = &adapter->hw;

        if (ixgbe_device_supports_autoneg_fc(hw) &&
            !hw->fc.disable_fc_autoneg)
                pause->autoneg = 1;
        else
                pause->autoneg = 0;

        if (hw->fc.current_mode == ixgbe_fc_rx_pause) {
                pause->rx_pause = 1;
        } else if (hw->fc.current_mode == ixgbe_fc_tx_pause) {
                pause->tx_pause = 1;
        } else if (hw->fc.current_mode == ixgbe_fc_full) {
                pause->rx_pause = 1;
                pause->tx_pause = 1;
        }
}

static void ixgbe_set_pauseparam_finalize(struct net_device *netdev,
                                          struct ixgbe_fc_info *fc)
{
        struct ixgbe_adapter *adapter = ixgbe_from_netdev(netdev);
        struct ixgbe_hw *hw = &adapter->hw;

        /* If the thing changed then we'll update and use new autoneg. */
        if (memcmp(fc, &hw->fc, sizeof(*fc))) {
                hw->fc = *fc;
                if (netif_running(netdev))
                        ixgbe_reinit_locked(adapter);
                else
                        ixgbe_reset(adapter);
        }
}

static int ixgbe_set_pauseparam(struct net_device *netdev,
                                struct ethtool_pauseparam *pause)
{
        struct ixgbe_adapter *adapter = ixgbe_from_netdev(netdev);
        struct ixgbe_hw *hw = &adapter->hw;
        struct ixgbe_fc_info fc = hw->fc;

        /* 82598 does no support link flow control with DCB enabled */
        if ((hw->mac.type == ixgbe_mac_82598EB) &&
            (adapter->flags & IXGBE_FLAG_DCB_ENABLED))
                return -EINVAL;

        /* some devices do not support autoneg of link flow control */
        if ((pause->autoneg == AUTONEG_ENABLE) &&
            !ixgbe_device_supports_autoneg_fc(hw))
                return -EINVAL;

        fc.disable_fc_autoneg = (pause->autoneg != AUTONEG_ENABLE);

        if ((pause->rx_pause && pause->tx_pause) || pause->autoneg)
                fc.requested_mode = ixgbe_fc_full;
        else if (pause->rx_pause && !pause->tx_pause)
                fc.requested_mode = ixgbe_fc_rx_pause;
        else if (!pause->rx_pause && pause->tx_pause)
                fc.requested_mode = ixgbe_fc_tx_pause;
        else
                fc.requested_mode = ixgbe_fc_none;

        ixgbe_set_pauseparam_finalize(netdev, &fc);

        return 0;
}

static int ixgbe_set_pauseparam_e610(struct net_device *netdev,
                                     struct ethtool_pauseparam *pause)
{
        struct ixgbe_adapter *adapter = ixgbe_from_netdev(netdev);
        struct ixgbe_hw *hw = &adapter->hw;
        struct ixgbe_fc_info fc = hw->fc;

        if (!ixgbe_device_supports_autoneg_fc(hw))
                return -EOPNOTSUPP;

        if (pause->autoneg == AUTONEG_DISABLE) {
                netdev_info(netdev,
                            "Cannot disable autonegotiation on this device.\n");
                return -EOPNOTSUPP;
        }

        fc.disable_fc_autoneg = false;

        if (pause->rx_pause && pause->tx_pause)
                fc.requested_mode = ixgbe_fc_full;
        else if (pause->rx_pause)
                fc.requested_mode = ixgbe_fc_rx_pause;
        else if (pause->tx_pause)
                fc.requested_mode = ixgbe_fc_tx_pause;
        else
                fc.requested_mode = ixgbe_fc_none;

        ixgbe_set_pauseparam_finalize(netdev, &fc);

        return 0;
}

static u32 ixgbe_get_msglevel(struct net_device *netdev)
{
        struct ixgbe_adapter *adapter = ixgbe_from_netdev(netdev);
        return adapter->msg_enable;
}

static void ixgbe_set_msglevel(struct net_device *netdev, u32 data)
{
        struct ixgbe_adapter *adapter = ixgbe_from_netdev(netdev);
        adapter->msg_enable = data;
}

static int ixgbe_get_regs_len(struct net_device *netdev)
{
#define IXGBE_REGS_LEN  1145
        return IXGBE_REGS_LEN * sizeof(u32);
}

#define IXGBE_GET_STAT(_A_, _R_) _A_->stats._R_

static void ixgbe_get_regs(struct net_device *netdev,
                           struct ethtool_regs *regs, void *p)
{
        struct ixgbe_adapter *adapter = ixgbe_from_netdev(netdev);
        struct ixgbe_hw *hw = &adapter->hw;
        u32 *regs_buff = p;
        u8 i;

        memset(p, 0, IXGBE_REGS_LEN * sizeof(u32));

        regs->version = hw->mac.type << 24 | hw->revision_id << 16 |
                        hw->device_id;

        /* General Registers */
        regs_buff[0] = IXGBE_READ_REG(hw, IXGBE_CTRL);
        regs_buff[1] = IXGBE_READ_REG(hw, IXGBE_STATUS);
        regs_buff[2] = IXGBE_READ_REG(hw, IXGBE_CTRL_EXT);
        regs_buff[3] = IXGBE_READ_REG(hw, IXGBE_ESDP);
        regs_buff[4] = IXGBE_READ_REG(hw, IXGBE_EODSDP);
        regs_buff[5] = IXGBE_READ_REG(hw, IXGBE_LEDCTL);
        regs_buff[6] = IXGBE_READ_REG(hw, IXGBE_FRTIMER);
        regs_buff[7] = IXGBE_READ_REG(hw, IXGBE_TCPTIMER);

        /* NVM Register */
        regs_buff[8] = IXGBE_READ_REG(hw, IXGBE_EEC(hw));
        regs_buff[9] = IXGBE_READ_REG(hw, IXGBE_EERD);
        regs_buff[10] = IXGBE_READ_REG(hw, IXGBE_FLA(hw));
        regs_buff[11] = IXGBE_READ_REG(hw, IXGBE_EEMNGCTL);
        regs_buff[12] = IXGBE_READ_REG(hw, IXGBE_EEMNGDATA);
        regs_buff[13] = IXGBE_READ_REG(hw, IXGBE_FLMNGCTL);
        regs_buff[14] = IXGBE_READ_REG(hw, IXGBE_FLMNGDATA);
        regs_buff[15] = IXGBE_READ_REG(hw, IXGBE_FLMNGCNT);
        regs_buff[16] = IXGBE_READ_REG(hw, IXGBE_FLOP);
        regs_buff[17] = IXGBE_READ_REG(hw, IXGBE_GRC(hw));

        /* Interrupt */
        /* don't read EICR because it can clear interrupt causes, instead
         * read EICS which is a shadow but doesn't clear EICR */
        regs_buff[18] = IXGBE_READ_REG(hw, IXGBE_EICS);
        regs_buff[19] = IXGBE_READ_REG(hw, IXGBE_EICS);
        regs_buff[20] = IXGBE_READ_REG(hw, IXGBE_EIMS);
        regs_buff[21] = IXGBE_READ_REG(hw, IXGBE_EIMC);
        regs_buff[22] = IXGBE_READ_REG(hw, IXGBE_EIAC);
        regs_buff[23] = IXGBE_READ_REG(hw, IXGBE_EIAM);
        regs_buff[24] = IXGBE_READ_REG(hw, IXGBE_EITR(0));
        regs_buff[25] = IXGBE_READ_REG(hw, IXGBE_IVAR(0));
        regs_buff[26] = IXGBE_READ_REG(hw, IXGBE_MSIXT);
        regs_buff[27] = IXGBE_READ_REG(hw, IXGBE_MSIXPBA);
        regs_buff[28] = IXGBE_READ_REG(hw, IXGBE_PBACL(0));
        regs_buff[29] = IXGBE_READ_REG(hw, IXGBE_GPIE);

        /* Flow Control */
        regs_buff[30] = IXGBE_READ_REG(hw, IXGBE_PFCTOP);
        for (i = 0; i < 4; i++)
                regs_buff[31 + i] = IXGBE_READ_REG(hw, IXGBE_FCTTV(i));
        for (i = 0; i < 8; i++) {
                switch (hw->mac.type) {
                case ixgbe_mac_82598EB:
                        regs_buff[35 + i] = IXGBE_READ_REG(hw, IXGBE_FCRTL(i));
                        regs_buff[43 + i] = IXGBE_READ_REG(hw, IXGBE_FCRTH(i));
                        break;
                case ixgbe_mac_82599EB:
                case ixgbe_mac_X540:
                case ixgbe_mac_X550:
                case ixgbe_mac_X550EM_x:
                case ixgbe_mac_x550em_a:
                case ixgbe_mac_e610:
                        regs_buff[35 + i] = IXGBE_READ_REG(hw, IXGBE_FCRTL_82599(i));
                        regs_buff[43 + i] = IXGBE_READ_REG(hw, IXGBE_FCRTH_82599(i));
                        break;
                default:
                        break;
                }
        }
        regs_buff[51] = IXGBE_READ_REG(hw, IXGBE_FCRTV);
        regs_buff[52] = IXGBE_READ_REG(hw, IXGBE_TFCS);

        /* Receive DMA */
        for (i = 0; i < 64; i++)
                regs_buff[53 + i] = IXGBE_READ_REG(hw, IXGBE_RDBAL(i));
        for (i = 0; i < 64; i++)
                regs_buff[117 + i] = IXGBE_READ_REG(hw, IXGBE_RDBAH(i));
        for (i = 0; i < 64; i++)
                regs_buff[181 + i] = IXGBE_READ_REG(hw, IXGBE_RDLEN(i));
        for (i = 0; i < 64; i++)
                regs_buff[245 + i] = IXGBE_READ_REG(hw, IXGBE_RDH(i));
        for (i = 0; i < 64; i++)
                regs_buff[309 + i] = IXGBE_READ_REG(hw, IXGBE_RDT(i));
        for (i = 0; i < 64; i++)
                regs_buff[373 + i] = IXGBE_READ_REG(hw, IXGBE_RXDCTL(i));
        for (i = 0; i < 16; i++)
                regs_buff[437 + i] = IXGBE_READ_REG(hw, IXGBE_SRRCTL(i));
        for (i = 0; i < 16; i++)
                regs_buff[453 + i] = IXGBE_READ_REG(hw, IXGBE_DCA_RXCTRL(i));
        regs_buff[469] = IXGBE_READ_REG(hw, IXGBE_RDRXCTL);
        for (i = 0; i < 8; i++)
                regs_buff[470 + i] = IXGBE_READ_REG(hw, IXGBE_RXPBSIZE(i));
        regs_buff[478] = IXGBE_READ_REG(hw, IXGBE_RXCTRL);
        regs_buff[479] = IXGBE_READ_REG(hw, IXGBE_DROPEN);

        /* Receive */
        regs_buff[480] = IXGBE_READ_REG(hw, IXGBE_RXCSUM);
        regs_buff[481] = IXGBE_READ_REG(hw, IXGBE_RFCTL);
        for (i = 0; i < 16; i++)
                regs_buff[482 + i] = IXGBE_READ_REG(hw, IXGBE_RAL(i));
        for (i = 0; i < 16; i++)
                regs_buff[498 + i] = IXGBE_READ_REG(hw, IXGBE_RAH(i));
        regs_buff[514] = IXGBE_READ_REG(hw, IXGBE_PSRTYPE(0));
        regs_buff[515] = IXGBE_READ_REG(hw, IXGBE_FCTRL);
        regs_buff[516] = IXGBE_READ_REG(hw, IXGBE_VLNCTRL);
        regs_buff[517] = IXGBE_READ_REG(hw, IXGBE_MCSTCTRL);
        regs_buff[518] = IXGBE_READ_REG(hw, IXGBE_MRQC);
        regs_buff[519] = IXGBE_READ_REG(hw, IXGBE_VMD_CTL);
        for (i = 0; i < 8; i++)
                regs_buff[520 + i] = IXGBE_READ_REG(hw, IXGBE_IMIR(i));
        for (i = 0; i < 8; i++)
                regs_buff[528 + i] = IXGBE_READ_REG(hw, IXGBE_IMIREXT(i));
        regs_buff[536] = IXGBE_READ_REG(hw, IXGBE_IMIRVP);

        /* Transmit */
        for (i = 0; i < 32; i++)
                regs_buff[537 + i] = IXGBE_READ_REG(hw, IXGBE_TDBAL(i));
        for (i = 0; i < 32; i++)
                regs_buff[569 + i] = IXGBE_READ_REG(hw, IXGBE_TDBAH(i));
        for (i = 0; i < 32; i++)
                regs_buff[601 + i] = IXGBE_READ_REG(hw, IXGBE_TDLEN(i));
        for (i = 0; i < 32; i++)
                regs_buff[633 + i] = IXGBE_READ_REG(hw, IXGBE_TDH(i));
        for (i = 0; i < 32; i++)
                regs_buff[665 + i] = IXGBE_READ_REG(hw, IXGBE_TDT(i));
        for (i = 0; i < 32; i++)
                regs_buff[697 + i] = IXGBE_READ_REG(hw, IXGBE_TXDCTL(i));
        for (i = 0; i < 32; i++)
                regs_buff[729 + i] = IXGBE_READ_REG(hw, IXGBE_TDWBAL(i));
        for (i = 0; i < 32; i++)
                regs_buff[761 + i] = IXGBE_READ_REG(hw, IXGBE_TDWBAH(i));
        regs_buff[793] = IXGBE_READ_REG(hw, IXGBE_DTXCTL);
        for (i = 0; i < 16; i++)
                regs_buff[794 + i] = IXGBE_READ_REG(hw, IXGBE_DCA_TXCTRL(i));
        regs_buff[810] = IXGBE_READ_REG(hw, IXGBE_TIPG);
        for (i = 0; i < 8; i++)
                regs_buff[811 + i] = IXGBE_READ_REG(hw, IXGBE_TXPBSIZE(i));
        regs_buff[819] = IXGBE_READ_REG(hw, IXGBE_MNGTXMAP);

        /* Wake Up */
        regs_buff[820] = IXGBE_READ_REG(hw, IXGBE_WUC);
        regs_buff[821] = IXGBE_READ_REG(hw, IXGBE_WUFC);
        regs_buff[822] = IXGBE_READ_REG(hw, IXGBE_WUS);
        regs_buff[823] = IXGBE_READ_REG(hw, IXGBE_IPAV);
        regs_buff[824] = IXGBE_READ_REG(hw, IXGBE_IP4AT);
        regs_buff[825] = IXGBE_READ_REG(hw, IXGBE_IP6AT);
        regs_buff[826] = IXGBE_READ_REG(hw, IXGBE_WUPL);
        regs_buff[827] = IXGBE_READ_REG(hw, IXGBE_WUPM);
        regs_buff[828] = IXGBE_READ_REG(hw, IXGBE_FHFT(0));

        /* DCB */
        regs_buff[829] = IXGBE_READ_REG(hw, IXGBE_RMCS);   /* same as FCCFG  */
        regs_buff[831] = IXGBE_READ_REG(hw, IXGBE_PDPMCS); /* same as RTTPCS */

        switch (hw->mac.type) {
        case ixgbe_mac_82598EB:
                regs_buff[830] = IXGBE_READ_REG(hw, IXGBE_DPMCS);
                regs_buff[832] = IXGBE_READ_REG(hw, IXGBE_RUPPBMR);
                for (i = 0; i < 8; i++)
                        regs_buff[833 + i] =
                                IXGBE_READ_REG(hw, IXGBE_RT2CR(i));
                for (i = 0; i < 8; i++)
                        regs_buff[841 + i] =
                                IXGBE_READ_REG(hw, IXGBE_RT2SR(i));
                for (i = 0; i < 8; i++)
                        regs_buff[849 + i] =
                                IXGBE_READ_REG(hw, IXGBE_TDTQ2TCCR(i));
                for (i = 0; i < 8; i++)
                        regs_buff[857 + i] =
                                IXGBE_READ_REG(hw, IXGBE_TDTQ2TCSR(i));
                break;
        case ixgbe_mac_82599EB:
        case ixgbe_mac_X540:
        case ixgbe_mac_X550:
        case ixgbe_mac_X550EM_x:
        case ixgbe_mac_x550em_a:
                regs_buff[830] = IXGBE_READ_REG(hw, IXGBE_RTTDCS);
                regs_buff[832] = IXGBE_READ_REG(hw, IXGBE_RTRPCS);
                for (i = 0; i < 8; i++)
                        regs_buff[833 + i] =
                                IXGBE_READ_REG(hw, IXGBE_RTRPT4C(i));
                for (i = 0; i < 8; i++)
                        regs_buff[841 + i] =
                                IXGBE_READ_REG(hw, IXGBE_RTRPT4S(i));
                for (i = 0; i < 8; i++)
                        regs_buff[849 + i] =
                                IXGBE_READ_REG(hw, IXGBE_RTTDT2C(i));
                for (i = 0; i < 8; i++)
                        regs_buff[857 + i] =
                                IXGBE_READ_REG(hw, IXGBE_RTTDT2S(i));
                break;
        default:
                break;
        }

        for (i = 0; i < 8; i++)
                regs_buff[865 + i] =
                IXGBE_READ_REG(hw, IXGBE_TDPT2TCCR(i)); /* same as RTTPT2C */
        for (i = 0; i < 8; i++)
                regs_buff[873 + i] =
                IXGBE_READ_REG(hw, IXGBE_TDPT2TCSR(i)); /* same as RTTPT2S */

        /* Statistics */
        regs_buff[881] = IXGBE_GET_STAT(adapter, crcerrs);
        regs_buff[882] = IXGBE_GET_STAT(adapter, illerrc);
        regs_buff[883] = IXGBE_GET_STAT(adapter, errbc);
        regs_buff[884] = IXGBE_GET_STAT(adapter, mspdc);
        for (i = 0; i < 8; i++)
                regs_buff[885 + i] = IXGBE_GET_STAT(adapter, mpc[i]);
        regs_buff[893] = IXGBE_GET_STAT(adapter, mlfc);
        regs_buff[894] = IXGBE_GET_STAT(adapter, mrfc);
        regs_buff[895] = IXGBE_GET_STAT(adapter, rlec);
        regs_buff[896] = IXGBE_GET_STAT(adapter, lxontxc);
        regs_buff[897] = IXGBE_GET_STAT(adapter, lxonrxc);
        regs_buff[898] = IXGBE_GET_STAT(adapter, lxofftxc);
        regs_buff[899] = IXGBE_GET_STAT(adapter, lxoffrxc);
        for (i = 0; i < 8; i++)
                regs_buff[900 + i] = IXGBE_GET_STAT(adapter, pxontxc[i]);
        for (i = 0; i < 8; i++)
                regs_buff[908 + i] = IXGBE_GET_STAT(adapter, pxonrxc[i]);
        for (i = 0; i < 8; i++)
                regs_buff[916 + i] = IXGBE_GET_STAT(adapter, pxofftxc[i]);
        for (i = 0; i < 8; i++)
                regs_buff[924 + i] = IXGBE_GET_STAT(adapter, pxoffrxc[i]);
        regs_buff[932] = IXGBE_GET_STAT(adapter, prc64);
        regs_buff[933] = IXGBE_GET_STAT(adapter, prc127);
        regs_buff[934] = IXGBE_GET_STAT(adapter, prc255);
        regs_buff[935] = IXGBE_GET_STAT(adapter, prc511);
        regs_buff[936] = IXGBE_GET_STAT(adapter, prc1023);
        regs_buff[937] = IXGBE_GET_STAT(adapter, prc1522);
        regs_buff[938] = IXGBE_GET_STAT(adapter, gprc);
        regs_buff[939] = IXGBE_GET_STAT(adapter, bprc);
        regs_buff[940] = IXGBE_GET_STAT(adapter, mprc);
        regs_buff[941] = IXGBE_GET_STAT(adapter, gptc);
        regs_buff[942] = (u32)IXGBE_GET_STAT(adapter, gorc);
        regs_buff[943] = (u32)(IXGBE_GET_STAT(adapter, gorc) >> 32);
        regs_buff[944] = (u32)IXGBE_GET_STAT(adapter, gotc);
        regs_buff[945] = (u32)(IXGBE_GET_STAT(adapter, gotc) >> 32);
        for (i = 0; i < 8; i++)
                regs_buff[946 + i] = IXGBE_GET_STAT(adapter, rnbc[i]);
        regs_buff[954] = IXGBE_GET_STAT(adapter, ruc);
        regs_buff[955] = IXGBE_GET_STAT(adapter, rfc);
        regs_buff[956] = IXGBE_GET_STAT(adapter, roc);
        regs_buff[957] = IXGBE_GET_STAT(adapter, rjc);
        regs_buff[958] = IXGBE_GET_STAT(adapter, mngprc);
        regs_buff[959] = IXGBE_GET_STAT(adapter, mngpdc);
        regs_buff[960] = IXGBE_GET_STAT(adapter, mngptc);
        regs_buff[961] = (u32)IXGBE_GET_STAT(adapter, tor);
        regs_buff[962] = (u32)(IXGBE_GET_STAT(adapter, tor) >> 32);
        regs_buff[963] = IXGBE_GET_STAT(adapter, tpr);
        regs_buff[964] = IXGBE_GET_STAT(adapter, tpt);
        regs_buff[965] = IXGBE_GET_STAT(adapter, ptc64);
        regs_buff[966] = IXGBE_GET_STAT(adapter, ptc127);
        regs_buff[967] = IXGBE_GET_STAT(adapter, ptc255);
        regs_buff[968] = IXGBE_GET_STAT(adapter, ptc511);
        regs_buff[969] = IXGBE_GET_STAT(adapter, ptc1023);
        regs_buff[970] = IXGBE_GET_STAT(adapter, ptc1522);
        regs_buff[971] = IXGBE_GET_STAT(adapter, mptc);
        regs_buff[972] = IXGBE_GET_STAT(adapter, bptc);
        regs_buff[973] = IXGBE_GET_STAT(adapter, xec);
        for (i = 0; i < 16; i++)
                regs_buff[974 + i] = IXGBE_GET_STAT(adapter, qprc[i]);
        for (i = 0; i < 16; i++)
                regs_buff[990 + i] = IXGBE_GET_STAT(adapter, qptc[i]);
        for (i = 0; i < 16; i++)
                regs_buff[1006 + i] = IXGBE_GET_STAT(adapter, qbrc[i]);
        for (i = 0; i < 16; i++)
                regs_buff[1022 + i] = IXGBE_GET_STAT(adapter, qbtc[i]);

        /* MAC */
        regs_buff[1038] = IXGBE_READ_REG(hw, IXGBE_PCS1GCFIG);
        regs_buff[1039] = IXGBE_READ_REG(hw, IXGBE_PCS1GLCTL);
        regs_buff[1040] = IXGBE_READ_REG(hw, IXGBE_PCS1GLSTA);
        regs_buff[1041] = IXGBE_READ_REG(hw, IXGBE_PCS1GDBG0);
        regs_buff[1042] = IXGBE_READ_REG(hw, IXGBE_PCS1GDBG1);
        regs_buff[1043] = IXGBE_READ_REG(hw, IXGBE_PCS1GANA);
        regs_buff[1044] = IXGBE_READ_REG(hw, IXGBE_PCS1GANLP);
        regs_buff[1045] = IXGBE_READ_REG(hw, IXGBE_PCS1GANNP);
        regs_buff[1046] = IXGBE_READ_REG(hw, IXGBE_PCS1GANLPNP);
        regs_buff[1047] = IXGBE_READ_REG(hw, IXGBE_HLREG0);
        regs_buff[1048] = IXGBE_READ_REG(hw, IXGBE_HLREG1);
        regs_buff[1049] = IXGBE_READ_REG(hw, IXGBE_PAP);
        regs_buff[1050] = IXGBE_READ_REG(hw, IXGBE_MACA);
        regs_buff[1051] = IXGBE_READ_REG(hw, IXGBE_APAE);
        regs_buff[1052] = IXGBE_READ_REG(hw, IXGBE_ARD);
        regs_buff[1053] = IXGBE_READ_REG(hw, IXGBE_AIS);
        regs_buff[1054] = IXGBE_READ_REG(hw, IXGBE_MSCA);
        regs_buff[1055] = IXGBE_READ_REG(hw, IXGBE_MSRWD);
        regs_buff[1056] = IXGBE_READ_REG(hw, IXGBE_MLADD);
        regs_buff[1057] = IXGBE_READ_REG(hw, IXGBE_MHADD);
        regs_buff[1058] = IXGBE_READ_REG(hw, IXGBE_TREG);
        regs_buff[1059] = IXGBE_READ_REG(hw, IXGBE_PCSS1);
        regs_buff[1060] = IXGBE_READ_REG(hw, IXGBE_PCSS2);
        regs_buff[1061] = IXGBE_READ_REG(hw, IXGBE_XPCSS);
        regs_buff[1062] = IXGBE_READ_REG(hw, IXGBE_SERDESC);
        regs_buff[1063] = IXGBE_READ_REG(hw, IXGBE_MACS);
        regs_buff[1064] = IXGBE_READ_REG(hw, IXGBE_AUTOC);
        regs_buff[1065] = IXGBE_READ_REG(hw, IXGBE_LINKS);
        regs_buff[1066] = IXGBE_READ_REG(hw, IXGBE_AUTOC2);
        regs_buff[1067] = IXGBE_READ_REG(hw, IXGBE_AUTOC3);
        regs_buff[1068] = IXGBE_READ_REG(hw, IXGBE_ANLP1);
        regs_buff[1069] = IXGBE_READ_REG(hw, IXGBE_ANLP2);
        regs_buff[1070] = IXGBE_READ_REG(hw, IXGBE_ATLASCTL);

        /* Diagnostic */
        regs_buff[1071] = IXGBE_READ_REG(hw, IXGBE_RDSTATCTL);
        for (i = 0; i < 8; i++)
                regs_buff[1072 + i] = IXGBE_READ_REG(hw, IXGBE_RDSTAT(i));
        regs_buff[1080] = IXGBE_READ_REG(hw, IXGBE_RDHMPN);
        for (i = 0; i < 4; i++)
                regs_buff[1081 + i] = IXGBE_READ_REG(hw, IXGBE_RIC_DW(i));
        regs_buff[1085] = IXGBE_READ_REG(hw, IXGBE_RDPROBE);
        regs_buff[1086] = IXGBE_READ_REG(hw, IXGBE_TDSTATCTL);
        for (i = 0; i < 8; i++)
                regs_buff[1087 + i] = IXGBE_READ_REG(hw, IXGBE_TDSTAT(i));
        regs_buff[1095] = IXGBE_READ_REG(hw, IXGBE_TDHMPN);
        for (i = 0; i < 4; i++)
                regs_buff[1096 + i] = IXGBE_READ_REG(hw, IXGBE_TIC_DW(i));
        regs_buff[1100] = IXGBE_READ_REG(hw, IXGBE_TDPROBE);
        regs_buff[1101] = IXGBE_READ_REG(hw, IXGBE_TXBUFCTRL);
        for (i = 0; i < 4; i++)
                regs_buff[1102 + i] = IXGBE_READ_REG(hw, IXGBE_TXBUFDATA(i));
        regs_buff[1106] = IXGBE_READ_REG(hw, IXGBE_RXBUFCTRL);
        for (i = 0; i < 4; i++)
                regs_buff[1107 + i] = IXGBE_READ_REG(hw, IXGBE_RXBUFDATA(i));
        for (i = 0; i < 8; i++)
                regs_buff[1111 + i] = IXGBE_READ_REG(hw, IXGBE_PCIE_DIAG(i));
        regs_buff[1119] = IXGBE_READ_REG(hw, IXGBE_RFVAL);
        regs_buff[1120] = IXGBE_READ_REG(hw, IXGBE_MDFTC1);
        regs_buff[1121] = IXGBE_READ_REG(hw, IXGBE_MDFTC2);
        regs_buff[1122] = IXGBE_READ_REG(hw, IXGBE_MDFTFIFO1);
        regs_buff[1123] = IXGBE_READ_REG(hw, IXGBE_MDFTFIFO2);
        regs_buff[1124] = IXGBE_READ_REG(hw, IXGBE_MDFTS);
        regs_buff[1125] = IXGBE_READ_REG(hw, IXGBE_PCIEECCCTL);
        regs_buff[1126] = IXGBE_READ_REG(hw, IXGBE_PBTXECC);
        regs_buff[1127] = IXGBE_READ_REG(hw, IXGBE_PBRXECC);

        /* 82599 X540 specific registers  */
        regs_buff[1128] = IXGBE_READ_REG(hw, IXGBE_MFLCN);

        /* 82599 X540 specific DCB registers  */
        regs_buff[1129] = IXGBE_READ_REG(hw, IXGBE_RTRUP2TC);
        regs_buff[1130] = IXGBE_READ_REG(hw, IXGBE_RTTUP2TC);
        for (i = 0; i < 4; i++)
                regs_buff[1131 + i] = IXGBE_READ_REG(hw, IXGBE_TXLLQ(i));
        regs_buff[1135] = IXGBE_READ_REG(hw, IXGBE_RTTBCNRM);
                                        /* same as RTTQCNRM */
        regs_buff[1136] = IXGBE_READ_REG(hw, IXGBE_RTTBCNRD);
                                        /* same as RTTQCNRR */

        /* X540 specific DCB registers  */
        regs_buff[1137] = IXGBE_READ_REG(hw, IXGBE_RTTQCNCR);
        regs_buff[1138] = IXGBE_READ_REG(hw, IXGBE_RTTQCNTG);

        /* Security config registers */
        regs_buff[1139] = IXGBE_READ_REG(hw, IXGBE_SECTXCTRL);
        regs_buff[1140] = IXGBE_READ_REG(hw, IXGBE_SECTXSTAT);
        regs_buff[1141] = IXGBE_READ_REG(hw, IXGBE_SECTXBUFFAF);
        regs_buff[1142] = IXGBE_READ_REG(hw, IXGBE_SECTXMINIFG);
        regs_buff[1143] = IXGBE_READ_REG(hw, IXGBE_SECRXCTRL);
        regs_buff[1144] = IXGBE_READ_REG(hw, IXGBE_SECRXSTAT);
}

static void ixgbe_get_link_ext_stats(struct net_device *netdev,
                                     struct ethtool_link_ext_stats *stats)
{
        struct ixgbe_adapter *adapter = ixgbe_from_netdev(netdev);

        stats->link_down_events = adapter->link_down_events;
}

static int ixgbe_get_eeprom_len(struct net_device *netdev)
{
        struct ixgbe_adapter *adapter = ixgbe_from_netdev(netdev);
        return adapter->hw.eeprom.word_size * 2;
}

static int ixgbe_get_eeprom(struct net_device *netdev,
                            struct ethtool_eeprom *eeprom, u8 *bytes)
{
        struct ixgbe_adapter *adapter = ixgbe_from_netdev(netdev);
        struct ixgbe_hw *hw = &adapter->hw;
        u16 *eeprom_buff;
        int first_word, last_word, eeprom_len;
        int ret_val = 0;
        u16 i;

        if (eeprom->len == 0)
                return -EINVAL;

        eeprom->magic = hw->vendor_id | (hw->device_id << 16);

        first_word = eeprom->offset >> 1;
        last_word = (eeprom->offset + eeprom->len - 1) >> 1;
        eeprom_len = last_word - first_word + 1;

        eeprom_buff = kmalloc_array(eeprom_len, sizeof(u16), GFP_KERNEL);
        if (!eeprom_buff)
                return -ENOMEM;

        ret_val = hw->eeprom.ops.read_buffer(hw, first_word, eeprom_len,
                                             eeprom_buff);

        /* Device's eeprom is always little-endian, word addressable */
        for (i = 0; i < eeprom_len; i++)
                le16_to_cpus(&eeprom_buff[i]);

        memcpy(bytes, (u8 *)eeprom_buff + (eeprom->offset & 1), eeprom->len);
        kfree(eeprom_buff);

        return ret_val;
}

static int ixgbe_set_eeprom(struct net_device *netdev,
                            struct ethtool_eeprom *eeprom, u8 *bytes)
{
        struct ixgbe_adapter *adapter = ixgbe_from_netdev(netdev);
        struct ixgbe_hw *hw = &adapter->hw;
        u16 *eeprom_buff;
        void *ptr;
        int max_len, first_word, last_word, ret_val = 0;
        u16 i;

        if (eeprom->len == 0)
                return -EINVAL;

        if (eeprom->magic != (hw->vendor_id | (hw->device_id << 16)))
                return -EINVAL;

        max_len = hw->eeprom.word_size * 2;

        first_word = eeprom->offset >> 1;
        last_word = (eeprom->offset + eeprom->len - 1) >> 1;
        eeprom_buff = kmalloc(max_len, GFP_KERNEL);
        if (!eeprom_buff)
                return -ENOMEM;

        ptr = eeprom_buff;

        if (eeprom->offset & 1) {
                /*
                 * need read/modify/write of first changed EEPROM word
                 * only the second byte of the word is being modified
                 */
                ret_val = hw->eeprom.ops.read(hw, first_word, &eeprom_buff[0]);
                if (ret_val)
                        goto err;

                ptr++;
        }
        if ((eeprom->offset + eeprom->len) & 1) {
                /*
                 * need read/modify/write of last changed EEPROM word
                 * only the first byte of the word is being modified
                 */
                ret_val = hw->eeprom.ops.read(hw, last_word,
                                          &eeprom_buff[last_word - first_word]);
                if (ret_val)
                        goto err;
        }

        /* Device's eeprom is always little-endian, word addressable */
        for (i = 0; i < last_word - first_word + 1; i++)
                le16_to_cpus(&eeprom_buff[i]);

        memcpy(ptr, bytes, eeprom->len);

        for (i = 0; i < last_word - first_word + 1; i++)
                cpu_to_le16s(&eeprom_buff[i]);

        ret_val = hw->eeprom.ops.write_buffer(hw, first_word,
                                              last_word - first_word + 1,
                                              eeprom_buff);

        /* Update the checksum */
        if (ret_val == 0)
                hw->eeprom.ops.update_checksum(hw);

err:
        kfree(eeprom_buff);
        return ret_val;
}

void ixgbe_refresh_fw_version(struct ixgbe_adapter *adapter)
{
        struct ixgbe_hw *hw = &adapter->hw;

        ixgbe_get_flash_data(hw);
        ixgbe_set_fw_version_e610(adapter);
}

static void ixgbe_get_drvinfo(struct net_device *netdev,
                              struct ethtool_drvinfo *drvinfo)
{
        struct ixgbe_adapter *adapter = ixgbe_from_netdev(netdev);

        /* need to refresh info for e610 in case fw reloads in runtime */
        if (adapter->hw.mac.type == ixgbe_mac_e610)
                ixgbe_refresh_fw_version(adapter);

        strscpy(drvinfo->driver, ixgbe_driver_name, sizeof(drvinfo->driver));

        strscpy(drvinfo->fw_version, adapter->eeprom_id,
                sizeof(drvinfo->fw_version));

        strscpy(drvinfo->bus_info, pci_name(adapter->pdev),
                sizeof(drvinfo->bus_info));

        drvinfo->n_priv_flags = IXGBE_PRIV_FLAGS_STR_LEN;
}

static u32 ixgbe_get_max_rxd(struct ixgbe_adapter *adapter)
{
        switch (adapter->hw.mac.type) {
        case ixgbe_mac_82598EB:
                return IXGBE_MAX_RXD_82598;
        case ixgbe_mac_82599EB:
                return IXGBE_MAX_RXD_82599;
        case ixgbe_mac_X540:
                return IXGBE_MAX_RXD_X540;
        case ixgbe_mac_X550:
        case ixgbe_mac_X550EM_x:
        case ixgbe_mac_x550em_a:
                return IXGBE_MAX_RXD_X550;
        default:
                return IXGBE_MAX_RXD_82598;
        }
}

static u32 ixgbe_get_max_txd(struct ixgbe_adapter *adapter)
{
        switch (adapter->hw.mac.type) {
        case ixgbe_mac_82598EB:
                return IXGBE_MAX_TXD_82598;
        case ixgbe_mac_82599EB:
                return IXGBE_MAX_TXD_82599;
        case ixgbe_mac_X540:
                return IXGBE_MAX_TXD_X540;
        case ixgbe_mac_X550:
        case ixgbe_mac_X550EM_x:
        case ixgbe_mac_x550em_a:
                return IXGBE_MAX_TXD_X550;
        default:
                return IXGBE_MAX_TXD_82598;
        }
}

static void ixgbe_get_ringparam(struct net_device *netdev,
                                struct ethtool_ringparam *ring,
                                struct kernel_ethtool_ringparam *kernel_ring,
                                struct netlink_ext_ack *extack)
{
        struct ixgbe_adapter *adapter = ixgbe_from_netdev(netdev);
        struct ixgbe_ring *tx_ring = adapter->tx_ring[0];
        struct ixgbe_ring *rx_ring = adapter->rx_ring[0];

        ring->rx_max_pending = ixgbe_get_max_rxd(adapter);
        ring->tx_max_pending = ixgbe_get_max_txd(adapter);
        ring->rx_pending = rx_ring->count;
        ring->tx_pending = tx_ring->count;
}

static int ixgbe_set_ringparam(struct net_device *netdev,
                               struct ethtool_ringparam *ring,
                               struct kernel_ethtool_ringparam *kernel_ring,
                               struct netlink_ext_ack *extack)
{
        struct ixgbe_adapter *adapter = ixgbe_from_netdev(netdev);
        struct ixgbe_ring *temp_ring;
        int i, j, err = 0;
        u32 new_rx_count, new_tx_count;

        if ((ring->rx_mini_pending) || (ring->rx_jumbo_pending))
                return -EINVAL;

        new_tx_count = clamp_t(u32, ring->tx_pending,
                               IXGBE_MIN_TXD, ixgbe_get_max_txd(adapter));
        new_tx_count = ALIGN(new_tx_count, IXGBE_REQ_TX_DESCRIPTOR_MULTIPLE);

        new_rx_count = clamp_t(u32, ring->rx_pending,
                               IXGBE_MIN_RXD, ixgbe_get_max_rxd(adapter));
        new_rx_count = ALIGN(new_rx_count, IXGBE_REQ_RX_DESCRIPTOR_MULTIPLE);

        if ((new_tx_count == adapter->tx_ring_count) &&
            (new_rx_count == adapter->rx_ring_count)) {
                /* nothing to do */
                return 0;
        }

        while (test_and_set_bit(__IXGBE_RESETTING, &adapter->state))
                usleep_range(1000, 2000);

        if (!netif_running(adapter->netdev)) {
                for (i = 0; i < adapter->num_tx_queues; i++)
                        adapter->tx_ring[i]->count = new_tx_count;
                for (i = 0; i < adapter->num_xdp_queues; i++)
                        adapter->xdp_ring[i]->count = new_tx_count;
                for (i = 0; i < adapter->num_rx_queues; i++)
                        adapter->rx_ring[i]->count = new_rx_count;
                adapter->tx_ring_count = new_tx_count;
                adapter->xdp_ring_count = new_tx_count;
                adapter->rx_ring_count = new_rx_count;
                goto clear_reset;
        }

        /* allocate temporary buffer to store rings in */
        i = max_t(int, adapter->num_tx_queues + adapter->num_xdp_queues,
                  adapter->num_rx_queues);
        temp_ring = vmalloc_array(i, sizeof(struct ixgbe_ring));

        if (!temp_ring) {
                err = -ENOMEM;
                goto clear_reset;
        }

        ixgbe_down(adapter);

        /*
         * Setup new Tx resources and free the old Tx resources in that order.
         * We can then assign the new resources to the rings via a memcpy.
         * The advantage to this approach is that we are guaranteed to still
         * have resources even in the case of an allocation failure.
         */
        if (new_tx_count != adapter->tx_ring_count) {
                for (i = 0; i < adapter->num_tx_queues; i++) {
                        memcpy(&temp_ring[i], adapter->tx_ring[i],
                               sizeof(struct ixgbe_ring));

                        temp_ring[i].count = new_tx_count;
                        err = ixgbe_setup_tx_resources(&temp_ring[i]);
                        if (err) {
                                while (i) {
                                        i--;
                                        ixgbe_free_tx_resources(&temp_ring[i]);
                                }
                                goto err_setup;
                        }
                }

                for (j = 0; j < adapter->num_xdp_queues; j++, i++) {
                        memcpy(&temp_ring[i], adapter->xdp_ring[j],
                               sizeof(struct ixgbe_ring));

                        temp_ring[i].count = new_tx_count;
                        err = ixgbe_setup_tx_resources(&temp_ring[i]);
                        if (err) {
                                while (i) {
                                        i--;
                                        ixgbe_free_tx_resources(&temp_ring[i]);
                                }
                                goto err_setup;
                        }
                }

                for (i = 0; i < adapter->num_tx_queues; i++) {
                        ixgbe_free_tx_resources(adapter->tx_ring[i]);

                        memcpy(adapter->tx_ring[i], &temp_ring[i],
                               sizeof(struct ixgbe_ring));
                }
                for (j = 0; j < adapter->num_xdp_queues; j++, i++) {
                        ixgbe_free_tx_resources(adapter->xdp_ring[j]);

                        memcpy(adapter->xdp_ring[j], &temp_ring[i],
                               sizeof(struct ixgbe_ring));
                }

                adapter->tx_ring_count = new_tx_count;
        }

        /* Repeat the process for the Rx rings if needed */
        if (new_rx_count != adapter->rx_ring_count) {
                for (i = 0; i < adapter->num_rx_queues; i++) {
                        memcpy(&temp_ring[i], adapter->rx_ring[i],
                               sizeof(struct ixgbe_ring));

                        /* Clear copied XDP RX-queue info */
                        memset(&temp_ring[i].xdp_rxq, 0,
                               sizeof(temp_ring[i].xdp_rxq));

                        temp_ring[i].count = new_rx_count;
                        err = ixgbe_setup_rx_resources(adapter, &temp_ring[i]);
                        if (err) {
                                while (i) {
                                        i--;
                                        ixgbe_free_rx_resources(&temp_ring[i]);
                                }
                                goto err_setup;
                        }

                }

                for (i = 0; i < adapter->num_rx_queues; i++) {
                        ixgbe_free_rx_resources(adapter->rx_ring[i]);

                        memcpy(adapter->rx_ring[i], &temp_ring[i],
                               sizeof(struct ixgbe_ring));
                }

                adapter->rx_ring_count = new_rx_count;
        }

err_setup:
        ixgbe_up(adapter);
        vfree(temp_ring);
clear_reset:
        clear_bit(__IXGBE_RESETTING, &adapter->state);
        return err;
}

static int ixgbe_get_sset_count(struct net_device *netdev, int sset)
{
        switch (sset) {
        case ETH_SS_TEST:
                return IXGBE_TEST_LEN;
        case ETH_SS_STATS:
                return IXGBE_STATS_LEN;
        case ETH_SS_PRIV_FLAGS:
                return IXGBE_PRIV_FLAGS_STR_LEN;
        default:
                return -EOPNOTSUPP;
        }
}

static void ixgbe_get_ethtool_stats(struct net_device *netdev,
                                    struct ethtool_stats *stats, u64 *data)
{
        struct ixgbe_adapter *adapter = ixgbe_from_netdev(netdev);
        struct rtnl_link_stats64 temp;
        const struct rtnl_link_stats64 *net_stats;
        unsigned int start;
        struct ixgbe_ring *ring;
        int i, j;
        char *p = NULL;

        ixgbe_update_stats(adapter);
        net_stats = dev_get_stats(netdev, &temp);
        for (i = 0; i < IXGBE_GLOBAL_STATS_LEN; i++) {
                switch (ixgbe_gstrings_stats[i].type) {
                case NETDEV_STATS:
                        p = (char *) net_stats +
                                        ixgbe_gstrings_stats[i].stat_offset;
                        break;
                case IXGBE_STATS:
                        p = (char *) adapter +
                                        ixgbe_gstrings_stats[i].stat_offset;
                        break;
                default:
                        data[i] = 0;
                        continue;
                }

                data[i] = (ixgbe_gstrings_stats[i].sizeof_stat ==
                           sizeof(u64)) ? *(u64 *)p : *(u32 *)p;
        }
        for (j = 0; j < netdev->num_tx_queues; j++) {
                ring = adapter->tx_ring[j];
                if (!ring) {
                        data[i] = 0;
                        data[i+1] = 0;
                        i += 2;
                        continue;
                }

                do {
                        start = u64_stats_fetch_begin(&ring->syncp);
                        data[i]   = ring->stats.packets;
                        data[i+1] = ring->stats.bytes;
                } while (u64_stats_fetch_retry(&ring->syncp, start));
                i += 2;
        }
        for (j = 0; j < IXGBE_NUM_RX_QUEUES; j++) {
                ring = adapter->rx_ring[j];
                if (!ring) {
                        data[i] = 0;
                        data[i+1] = 0;
                        i += 2;
                        continue;
                }

                do {
                        start = u64_stats_fetch_begin(&ring->syncp);
                        data[i]   = ring->stats.packets;
                        data[i+1] = ring->stats.bytes;
                } while (u64_stats_fetch_retry(&ring->syncp, start));
                i += 2;
        }

        for (j = 0; j < IXGBE_MAX_PACKET_BUFFERS; j++) {
                data[i++] = adapter->stats.pxontxc[j];
                data[i++] = adapter->stats.pxofftxc[j];
        }
        for (j = 0; j < IXGBE_MAX_PACKET_BUFFERS; j++) {
                data[i++] = adapter->stats.pxonrxc[j];
                data[i++] = adapter->stats.pxoffrxc[j];
        }
}

static void ixgbe_get_strings(struct net_device *netdev, u32 stringset,
                              u8 *data)
{
        unsigned int i;
        u8 *p = data;

        switch (stringset) {
        case ETH_SS_TEST:
                for (i = 0; i < IXGBE_TEST_LEN; i++)
                        ethtool_puts(&p, ixgbe_gstrings_test[i]);
                break;
        case ETH_SS_STATS:
                for (i = 0; i < IXGBE_GLOBAL_STATS_LEN; i++)
                        ethtool_puts(&p, ixgbe_gstrings_stats[i].stat_string);
                for (i = 0; i < netdev->num_tx_queues; i++) {
                        ethtool_sprintf(&p, "tx_queue_%u_packets", i);
                        ethtool_sprintf(&p, "tx_queue_%u_bytes", i);
                }
                for (i = 0; i < IXGBE_NUM_RX_QUEUES; i++) {
                        ethtool_sprintf(&p, "rx_queue_%u_packets", i);
                        ethtool_sprintf(&p, "rx_queue_%u_bytes", i);
                }
                for (i = 0; i < IXGBE_MAX_PACKET_BUFFERS; i++) {
                        ethtool_sprintf(&p, "tx_pb_%u_pxon", i);
                        ethtool_sprintf(&p, "tx_pb_%u_pxoff", i);
                }
                for (i = 0; i < IXGBE_MAX_PACKET_BUFFERS; i++) {
                        ethtool_sprintf(&p, "rx_pb_%u_pxon", i);
                        ethtool_sprintf(&p, "rx_pb_%u_pxoff", i);
                }
                /* BUG_ON(p - data != IXGBE_STATS_LEN * ETH_GSTRING_LEN); */
                break;
        case ETH_SS_PRIV_FLAGS:
                memcpy(data, ixgbe_priv_flags_strings,
                       IXGBE_PRIV_FLAGS_STR_LEN * ETH_GSTRING_LEN);
        }
}

static int ixgbe_link_test(struct ixgbe_adapter *adapter, u64 *data)
{
        struct ixgbe_hw *hw = &adapter->hw;
        bool link_up;
        u32 link_speed = 0;

        if (ixgbe_removed(hw->hw_addr)) {
                *data = 1;
                return 1;
        }
        *data = 0;

        hw->mac.ops.check_link(hw, &link_speed, &link_up, true);
        if (link_up)
                return *data;
        else
                *data = 1;
        return *data;
}

/* ethtool register test data */
struct ixgbe_reg_test {
        u16 reg;
        u8  array_len;
        u8  test_type;
        u32 mask;
        u32 write;
};

/* In the hardware, registers are laid out either singly, in arrays
 * spaced 0x40 bytes apart, or in contiguous tables.  We assume
 * most tests take place on arrays or single registers (handled
 * as a single-element array) and special-case the tables.
 * Table tests are always pattern tests.
 *
 * We also make provision for some required setup steps by specifying
 * registers to be written without any read-back testing.
 */

#define PATTERN_TEST    1
#define SET_READ_TEST   2
#define WRITE_NO_TEST   3
#define TABLE32_TEST    4
#define TABLE64_TEST_LO 5
#define TABLE64_TEST_HI 6

/* default 82599 register test */
static const struct ixgbe_reg_test reg_test_82599[] = {
        { IXGBE_FCRTL_82599(0), 1, PATTERN_TEST, 0x8007FFF0, 0x8007FFF0 },
        { IXGBE_FCRTH_82599(0), 1, PATTERN_TEST, 0x8007FFF0, 0x8007FFF0 },
        { IXGBE_PFCTOP, 1, PATTERN_TEST, 0xFFFFFFFF, 0xFFFFFFFF },
        { IXGBE_VLNCTRL, 1, PATTERN_TEST, 0x00000000, 0x00000000 },
        { IXGBE_RDBAL(0), 4, PATTERN_TEST, 0xFFFFFF80, 0xFFFFFF80 },
        { IXGBE_RDBAH(0), 4, PATTERN_TEST, 0xFFFFFFFF, 0xFFFFFFFF },
        { IXGBE_RDLEN(0), 4, PATTERN_TEST, 0x000FFF80, 0x000FFFFF },
        { IXGBE_RXDCTL(0), 4, WRITE_NO_TEST, 0, IXGBE_RXDCTL_ENABLE },
        { IXGBE_RDT(0), 4, PATTERN_TEST, 0x0000FFFF, 0x0000FFFF },
        { IXGBE_RXDCTL(0), 4, WRITE_NO_TEST, 0, 0 },
        { IXGBE_FCRTH(0), 1, PATTERN_TEST, 0x8007FFF0, 0x8007FFF0 },
        { IXGBE_FCTTV(0), 1, PATTERN_TEST, 0xFFFFFFFF, 0xFFFFFFFF },
        { IXGBE_TDBAL(0), 4, PATTERN_TEST, 0xFFFFFF80, 0xFFFFFFFF },
        { IXGBE_TDBAH(0), 4, PATTERN_TEST, 0xFFFFFFFF, 0xFFFFFFFF },
        { IXGBE_TDLEN(0), 4, PATTERN_TEST, 0x000FFF80, 0x000FFF80 },
        { IXGBE_RXCTRL, 1, SET_READ_TEST, 0x00000001, 0x00000001 },
        { IXGBE_RAL(0), 16, TABLE64_TEST_LO, 0xFFFFFFFF, 0xFFFFFFFF },
        { IXGBE_RAL(0), 16, TABLE64_TEST_HI, 0x8001FFFF, 0x800CFFFF },
        { IXGBE_MTA(0), 128, TABLE32_TEST, 0xFFFFFFFF, 0xFFFFFFFF },
        { .reg = 0 }
};

/* default 82598 register test */
static const struct ixgbe_reg_test reg_test_82598[] = {
        { IXGBE_FCRTL(0), 1, PATTERN_TEST, 0x8007FFF0, 0x8007FFF0 },
        { IXGBE_FCRTH(0), 1, PATTERN_TEST, 0x8007FFF0, 0x8007FFF0 },
        { IXGBE_PFCTOP, 1, PATTERN_TEST, 0xFFFFFFFF, 0xFFFFFFFF },
        { IXGBE_VLNCTRL, 1, PATTERN_TEST, 0x00000000, 0x00000000 },
        { IXGBE_RDBAL(0), 4, PATTERN_TEST, 0xFFFFFF80, 0xFFFFFFFF },
        { IXGBE_RDBAH(0), 4, PATTERN_TEST, 0xFFFFFFFF, 0xFFFFFFFF },
        { IXGBE_RDLEN(0), 4, PATTERN_TEST, 0x000FFF80, 0x000FFFFF },
        /* Enable all four RX queues before testing. */
        { IXGBE_RXDCTL(0), 4, WRITE_NO_TEST, 0, IXGBE_RXDCTL_ENABLE },
        /* RDH is read-only for 82598, only test RDT. */
        { IXGBE_RDT(0), 4, PATTERN_TEST, 0x0000FFFF, 0x0000FFFF },
        { IXGBE_RXDCTL(0), 4, WRITE_NO_TEST, 0, 0 },
        { IXGBE_FCRTH(0), 1, PATTERN_TEST, 0x8007FFF0, 0x8007FFF0 },
        { IXGBE_FCTTV(0), 1, PATTERN_TEST, 0xFFFFFFFF, 0xFFFFFFFF },
        { IXGBE_TIPG, 1, PATTERN_TEST, 0x000000FF, 0x000000FF },
        { IXGBE_TDBAL(0), 4, PATTERN_TEST, 0xFFFFFF80, 0xFFFFFFFF },
        { IXGBE_TDBAH(0), 4, PATTERN_TEST, 0xFFFFFFFF, 0xFFFFFFFF },
        { IXGBE_TDLEN(0), 4, PATTERN_TEST, 0x000FFF80, 0x000FFFFF },
        { IXGBE_RXCTRL, 1, SET_READ_TEST, 0x00000003, 0x00000003 },
        { IXGBE_DTXCTL, 1, SET_READ_TEST, 0x00000005, 0x00000005 },
        { IXGBE_RAL(0), 16, TABLE64_TEST_LO, 0xFFFFFFFF, 0xFFFFFFFF },
        { IXGBE_RAL(0), 16, TABLE64_TEST_HI, 0x800CFFFF, 0x800CFFFF },
        { IXGBE_MTA(0), 128, TABLE32_TEST, 0xFFFFFFFF, 0xFFFFFFFF },
        { .reg = 0 }
};

static bool reg_pattern_test(struct ixgbe_adapter *adapter, u64 *data, int reg,
                             u32 mask, u32 write)
{
        u32 pat, val, before;
        static const u32 test_pattern[] = {
                0x5A5A5A5A, 0xA5A5A5A5, 0x00000000, 0xFFFFFFFF};

        if (ixgbe_removed(adapter->hw.hw_addr)) {
                *data = 1;
                return true;
        }
        for (pat = 0; pat < ARRAY_SIZE(test_pattern); pat++) {
                before = ixgbe_read_reg(&adapter->hw, reg);
                ixgbe_write_reg(&adapter->hw, reg, test_pattern[pat] & write);
                val = ixgbe_read_reg(&adapter->hw, reg);
                if (val != (test_pattern[pat] & write & mask)) {
                        e_err(drv, "pattern test reg %04X failed: got 0x%08X expected 0x%08X\n",
                              reg, val, (test_pattern[pat] & write & mask));
                        *data = reg;
                        ixgbe_write_reg(&adapter->hw, reg, before);
                        return true;
                }
                ixgbe_write_reg(&adapter->hw, reg, before);
        }
        return false;
}

static bool reg_set_and_check(struct ixgbe_adapter *adapter, u64 *data, int reg,
                              u32 mask, u32 write)
{
        u32 val, before;

        if (ixgbe_removed(adapter->hw.hw_addr)) {
                *data = 1;
                return true;
        }
        before = ixgbe_read_reg(&adapter->hw, reg);
        ixgbe_write_reg(&adapter->hw, reg, write & mask);
        val = ixgbe_read_reg(&adapter->hw, reg);
        if ((write & mask) != (val & mask)) {
                e_err(drv, "set/check reg %04X test failed: got 0x%08X expected 0x%08X\n",
                      reg, (val & mask), (write & mask));
                *data = reg;
                ixgbe_write_reg(&adapter->hw, reg, before);
                return true;
        }
        ixgbe_write_reg(&adapter->hw, reg, before);
        return false;
}

static int ixgbe_reg_test(struct ixgbe_adapter *adapter, u64 *data)
{
        const struct ixgbe_reg_test *test;
        u32 value, before, after;
        u32 i, toggle;

        if (ixgbe_removed(adapter->hw.hw_addr)) {
                e_err(drv, "Adapter removed - register test blocked\n");
                *data = 1;
                return 1;
        }
        switch (adapter->hw.mac.type) {
        case ixgbe_mac_82598EB:
                toggle = 0x7FFFF3FF;
                test = reg_test_82598;
                break;
        case ixgbe_mac_82599EB:
        case ixgbe_mac_X540:
        case ixgbe_mac_X550:
        case ixgbe_mac_X550EM_x:
        case ixgbe_mac_x550em_a:
        case ixgbe_mac_e610:
                toggle = 0x7FFFF30F;
                test = reg_test_82599;
                break;
        default:
                *data = 1;
                return 1;
        }

        /*
         * Because the status register is such a special case,
         * we handle it separately from the rest of the register
         * tests.  Some bits are read-only, some toggle, and some
         * are writeable on newer MACs.
         */
        before = ixgbe_read_reg(&adapter->hw, IXGBE_STATUS);
        value = (ixgbe_read_reg(&adapter->hw, IXGBE_STATUS) & toggle);
        ixgbe_write_reg(&adapter->hw, IXGBE_STATUS, toggle);
        after = ixgbe_read_reg(&adapter->hw, IXGBE_STATUS) & toggle;
        if (value != after) {
                e_err(drv, "failed STATUS register test got: 0x%08X expected: 0x%08X\n",
                      after, value);
                *data = 1;
                return 1;
        }
        /* restore previous status */
        ixgbe_write_reg(&adapter->hw, IXGBE_STATUS, before);

        /*
         * Perform the remainder of the register test, looping through
         * the test table until we either fail or reach the null entry.
         */
        while (test->reg) {
                for (i = 0; i < test->array_len; i++) {
                        bool b = false;

                        switch (test->test_type) {
                        case PATTERN_TEST:
                                b = reg_pattern_test(adapter, data,
                                                     test->reg + (i * 0x40),
                                                     test->mask,
                                                     test->write);
                                break;
                        case SET_READ_TEST:
                                b = reg_set_and_check(adapter, data,
                                                      test->reg + (i * 0x40),
                                                      test->mask,
                                                      test->write);
                                break;
                        case WRITE_NO_TEST:
                                ixgbe_write_reg(&adapter->hw,
                                                test->reg + (i * 0x40),
                                                test->write);
                                break;
                        case TABLE32_TEST:
                                b = reg_pattern_test(adapter, data,
                                                     test->reg + (i * 4),
                                                     test->mask,
                                                     test->write);
                                break;
                        case TABLE64_TEST_LO:
                                b = reg_pattern_test(adapter, data,
                                                     test->reg + (i * 8),
                                                     test->mask,
                                                     test->write);
                                break;
                        case TABLE64_TEST_HI:
                                b = reg_pattern_test(adapter, data,
                                                     (test->reg + 4) + (i * 8),
                                                     test->mask,
                                                     test->write);
                                break;
                        }
                        if (b)
                                return 1;
                }
                test++;
        }

        *data = 0;
        return 0;
}

static int ixgbe_eeprom_test(struct ixgbe_adapter *adapter, u64 *data)
{
        struct ixgbe_hw *hw = &adapter->hw;
        if (hw->eeprom.ops.validate_checksum(hw, NULL))
                *data = 1;
        else
                *data = 0;
        return *data;
}

static irqreturn_t ixgbe_test_intr(int irq, void *data)
{
        struct net_device *netdev = (struct net_device *) data;
        struct ixgbe_adapter *adapter = ixgbe_from_netdev(netdev);

        adapter->test_icr |= IXGBE_READ_REG(&adapter->hw, IXGBE_EICR);

        return IRQ_HANDLED;
}

static int ixgbe_intr_test(struct ixgbe_adapter *adapter, u64 *data)
{
        struct net_device *netdev = adapter->netdev;
        u32 mask, i = 0, shared_int = true;
        u32 irq = adapter->pdev->irq;

        *data = 0;

        /* Hook up test interrupt handler just for this test */
        if (adapter->msix_entries) {
                /* NOTE: we don't test MSI-X interrupts here, yet */
                return 0;
        } else if (adapter->flags & IXGBE_FLAG_MSI_ENABLED) {
                shared_int = false;
                if (request_irq(irq, ixgbe_test_intr, 0, netdev->name,
                                netdev)) {
                        *data = 1;
                        return -1;
                }
        } else if (!request_irq(irq, ixgbe_test_intr, IRQF_PROBE_SHARED,
                                netdev->name, netdev)) {
                shared_int = false;
        } else if (request_irq(irq, ixgbe_test_intr, IRQF_SHARED,
                               netdev->name, netdev)) {
                *data = 1;
                return -1;
        }
        e_info(hw, "testing %s interrupt\n", shared_int ?
               "shared" : "unshared");

        /* Disable all the interrupts */
        IXGBE_WRITE_REG(&adapter->hw, IXGBE_EIMC, 0xFFFFFFFF);
        IXGBE_WRITE_FLUSH(&adapter->hw);
        usleep_range(10000, 20000);

        /* Test each interrupt */
        for (; i < 10; i++) {
                /* Interrupt to test */
                mask = BIT(i);

                if (!shared_int) {
                        /*
                         * Disable the interrupts to be reported in
                         * the cause register and then force the same
                         * interrupt and see if one gets posted.  If
                         * an interrupt was posted to the bus, the
                         * test failed.
                         */
                        adapter->test_icr = 0;
                        IXGBE_WRITE_REG(&adapter->hw, IXGBE_EIMC,
                                        ~mask & 0x00007FFF);
                        IXGBE_WRITE_REG(&adapter->hw, IXGBE_EICS,
                                        ~mask & 0x00007FFF);
                        IXGBE_WRITE_FLUSH(&adapter->hw);
                        usleep_range(10000, 20000);

                        if (adapter->test_icr & mask) {
                                *data = 3;
                                break;
                        }
                }

                /*
                 * Enable the interrupt to be reported in the cause
                 * register and then force the same interrupt and see
                 * if one gets posted.  If an interrupt was not posted
                 * to the bus, the test failed.
                 */
                adapter->test_icr = 0;
                IXGBE_WRITE_REG(&adapter->hw, IXGBE_EIMS, mask);
                IXGBE_WRITE_REG(&adapter->hw, IXGBE_EICS, mask);
                IXGBE_WRITE_FLUSH(&adapter->hw);
                usleep_range(10000, 20000);

                if (!(adapter->test_icr & mask)) {
                        *data = 4;
                        break;
                }

                if (!shared_int) {
                        /*
                         * Disable the other interrupts to be reported in
                         * the cause register and then force the other
                         * interrupts and see if any get posted.  If
                         * an interrupt was posted to the bus, the
                         * test failed.
                         */
                        adapter->test_icr = 0;
                        IXGBE_WRITE_REG(&adapter->hw, IXGBE_EIMC,
                                        ~mask & 0x00007FFF);
                        IXGBE_WRITE_REG(&adapter->hw, IXGBE_EICS,
                                        ~mask & 0x00007FFF);
                        IXGBE_WRITE_FLUSH(&adapter->hw);
                        usleep_range(10000, 20000);

                        if (adapter->test_icr) {
                                *data = 5;
                                break;
                        }
                }
        }

        /* Disable all the interrupts */
        IXGBE_WRITE_REG(&adapter->hw, IXGBE_EIMC, 0xFFFFFFFF);
        IXGBE_WRITE_FLUSH(&adapter->hw);
        usleep_range(10000, 20000);

        /* Unhook test interrupt handler */
        free_irq(irq, netdev);

        return *data;
}

static void ixgbe_free_desc_rings(struct ixgbe_adapter *adapter)
{
        /* Shut down the DMA engines now so they can be reinitialized later,
         * since the test rings and normally used rings should overlap on
         * queue 0 we can just use the standard disable Rx/Tx calls and they
         * will take care of disabling the test rings for us.
         */

        /* first Rx */
        ixgbe_disable_rx(adapter);

        /* now Tx */
        ixgbe_disable_tx(adapter);

        ixgbe_reset(adapter);

        ixgbe_free_tx_resources(&adapter->test_tx_ring);
        ixgbe_free_rx_resources(&adapter->test_rx_ring);
}

static int ixgbe_setup_desc_rings(struct ixgbe_adapter *adapter)
{
        struct ixgbe_ring *tx_ring = &adapter->test_tx_ring;
        struct ixgbe_ring *rx_ring = &adapter->test_rx_ring;
        struct ixgbe_hw *hw = &adapter->hw;
        u32 rctl, reg_data;
        int ret_val;
        int err;

        /* Setup Tx descriptor ring and Tx buffers */
        tx_ring->count = IXGBE_DEFAULT_TXD;
        tx_ring->queue_index = 0;
        tx_ring->dev = &adapter->pdev->dev;
        tx_ring->netdev = adapter->netdev;
        tx_ring->reg_idx = adapter->tx_ring[0]->reg_idx;

        err = ixgbe_setup_tx_resources(tx_ring);
        if (err)
                return 1;

        switch (adapter->hw.mac.type) {
        case ixgbe_mac_82599EB:
        case ixgbe_mac_X540:
        case ixgbe_mac_X550:
        case ixgbe_mac_X550EM_x:
        case ixgbe_mac_x550em_a:
        case ixgbe_mac_e610:
                reg_data = IXGBE_READ_REG(&adapter->hw, IXGBE_DMATXCTL);
                reg_data |= IXGBE_DMATXCTL_TE;
                IXGBE_WRITE_REG(&adapter->hw, IXGBE_DMATXCTL, reg_data);
                break;
        default:
                break;
        }

        ixgbe_configure_tx_ring(adapter, tx_ring);

        /* Setup Rx Descriptor ring and Rx buffers */
        rx_ring->count = IXGBE_DEFAULT_RXD;
        rx_ring->queue_index = 0;
        rx_ring->dev = &adapter->pdev->dev;
        rx_ring->netdev = adapter->netdev;
        rx_ring->reg_idx = adapter->rx_ring[0]->reg_idx;

        err = ixgbe_setup_rx_resources(adapter, rx_ring);
        if (err) {
                ret_val = 4;
                goto err_nomem;
        }

        hw->mac.ops.disable_rx(hw);

        ixgbe_configure_rx_ring(adapter, rx_ring);

        rctl = IXGBE_READ_REG(&adapter->hw, IXGBE_RXCTRL);
        rctl |= IXGBE_RXCTRL_DMBYPS;
        IXGBE_WRITE_REG(&adapter->hw, IXGBE_RXCTRL, rctl);

        hw->mac.ops.enable_rx(hw);

        return 0;

err_nomem:
        ixgbe_free_desc_rings(adapter);
        return ret_val;
}

static int ixgbe_setup_loopback_test(struct ixgbe_adapter *adapter)
{
        struct ixgbe_hw *hw = &adapter->hw;
        u32 reg_data;


        /* Setup MAC loopback */
        reg_data = IXGBE_READ_REG(hw, IXGBE_HLREG0);
        reg_data |= IXGBE_HLREG0_LPBK;
        IXGBE_WRITE_REG(hw, IXGBE_HLREG0, reg_data);

        reg_data = IXGBE_READ_REG(hw, IXGBE_FCTRL);
        reg_data |= IXGBE_FCTRL_BAM | IXGBE_FCTRL_SBP | IXGBE_FCTRL_MPE;
        IXGBE_WRITE_REG(hw, IXGBE_FCTRL, reg_data);

        /* X540 and X550 needs to set the MACC.FLU bit to force link up */
        switch (adapter->hw.mac.type) {
        case ixgbe_mac_X540:
        case ixgbe_mac_X550:
        case ixgbe_mac_X550EM_x:
        case ixgbe_mac_x550em_a:
        case ixgbe_mac_e610:
                reg_data = IXGBE_READ_REG(hw, IXGBE_MACC);
                reg_data |= IXGBE_MACC_FLU;
                IXGBE_WRITE_REG(hw, IXGBE_MACC, reg_data);
                break;
        default:
                if (hw->mac.orig_autoc) {
                        reg_data = hw->mac.orig_autoc | IXGBE_AUTOC_FLU;
                        IXGBE_WRITE_REG(hw, IXGBE_AUTOC, reg_data);
                } else {
                        return 10;
                }
        }
        IXGBE_WRITE_FLUSH(hw);
        usleep_range(10000, 20000);

        /* Disable Atlas Tx lanes; re-enabled in reset path */
        if (hw->mac.type == ixgbe_mac_82598EB) {
                u8 atlas;

                hw->mac.ops.read_analog_reg8(hw, IXGBE_ATLAS_PDN_LPBK, &atlas);
                atlas |= IXGBE_ATLAS_PDN_TX_REG_EN;
                hw->mac.ops.write_analog_reg8(hw, IXGBE_ATLAS_PDN_LPBK, atlas);

                hw->mac.ops.read_analog_reg8(hw, IXGBE_ATLAS_PDN_10G, &atlas);
                atlas |= IXGBE_ATLAS_PDN_TX_10G_QL_ALL;
                hw->mac.ops.write_analog_reg8(hw, IXGBE_ATLAS_PDN_10G, atlas);

                hw->mac.ops.read_analog_reg8(hw, IXGBE_ATLAS_PDN_1G, &atlas);
                atlas |= IXGBE_ATLAS_PDN_TX_1G_QL_ALL;
                hw->mac.ops.write_analog_reg8(hw, IXGBE_ATLAS_PDN_1G, atlas);

                hw->mac.ops.read_analog_reg8(hw, IXGBE_ATLAS_PDN_AN, &atlas);
                atlas |= IXGBE_ATLAS_PDN_TX_AN_QL_ALL;
                hw->mac.ops.write_analog_reg8(hw, IXGBE_ATLAS_PDN_AN, atlas);
        }

        return 0;
}

static void ixgbe_loopback_cleanup(struct ixgbe_adapter *adapter)
{
        u32 reg_data;

        reg_data = IXGBE_READ_REG(&adapter->hw, IXGBE_HLREG0);
        reg_data &= ~IXGBE_HLREG0_LPBK;
        IXGBE_WRITE_REG(&adapter->hw, IXGBE_HLREG0, reg_data);
}

static void ixgbe_create_lbtest_frame(struct sk_buff *skb,
                                      unsigned int frame_size)
{
        memset(skb->data, 0xFF, frame_size);
        frame_size >>= 1;
        memset(&skb->data[frame_size], 0xAA, frame_size / 2 - 1);
        skb->data[frame_size + 10] = 0xBE;
        skb->data[frame_size + 12] = 0xAF;
}

static bool ixgbe_check_lbtest_frame(struct ixgbe_rx_buffer *rx_buffer,
                                     unsigned int frame_size)
{
        unsigned char *data;

        frame_size >>= 1;

        data = page_address(rx_buffer->page) + rx_buffer->page_offset;

        return data[3] == 0xFF && data[frame_size + 10] == 0xBE &&
                data[frame_size + 12] == 0xAF;
}

static u16 ixgbe_clean_test_rings(struct ixgbe_ring *rx_ring,
                                  struct ixgbe_ring *tx_ring,
                                  unsigned int size)
{
        union ixgbe_adv_rx_desc *rx_desc;
        u16 rx_ntc, tx_ntc, count = 0;

        /* initialize next to clean and descriptor values */
        rx_ntc = rx_ring->next_to_clean;
        tx_ntc = tx_ring->next_to_clean;
        rx_desc = IXGBE_RX_DESC(rx_ring, rx_ntc);

        while (tx_ntc != tx_ring->next_to_use) {
                union ixgbe_adv_tx_desc *tx_desc;
                struct ixgbe_tx_buffer *tx_buffer;

                tx_desc = IXGBE_TX_DESC(tx_ring, tx_ntc);

                /* if DD is not set transmit has not completed */
                if (!(tx_desc->wb.status & cpu_to_le32(IXGBE_TXD_STAT_DD)))
                        return count;

                /* unmap buffer on Tx side */
                tx_buffer = &tx_ring->tx_buffer_info[tx_ntc];

                /* Free all the Tx ring sk_buffs */
                dev_kfree_skb_any(tx_buffer->skb);

                /* unmap skb header data */
                dma_unmap_single(tx_ring->dev,
                                 dma_unmap_addr(tx_buffer, dma),
                                 dma_unmap_len(tx_buffer, len),
                                 DMA_TO_DEVICE);
                dma_unmap_len_set(tx_buffer, len, 0);

                /* increment Tx next to clean counter */
                tx_ntc++;
                if (tx_ntc == tx_ring->count)
                        tx_ntc = 0;
        }

        while (rx_desc->wb.upper.length) {
                struct ixgbe_rx_buffer *rx_buffer;

                /* check Rx buffer */
                rx_buffer = &rx_ring->rx_buffer_info[rx_ntc];

                /* sync Rx buffer for CPU read */
                dma_sync_single_for_cpu(rx_ring->dev,
                                        rx_buffer->dma,
                                        ixgbe_rx_bufsz(rx_ring),
                                        DMA_FROM_DEVICE);

                /* verify contents of skb */
                if (ixgbe_check_lbtest_frame(rx_buffer, size))
                        count++;
                else
                        break;

                /* sync Rx buffer for device write */
                dma_sync_single_for_device(rx_ring->dev,
                                           rx_buffer->dma,
                                           ixgbe_rx_bufsz(rx_ring),
                                           DMA_FROM_DEVICE);

                /* increment Rx next to clean counter */
                rx_ntc++;
                if (rx_ntc == rx_ring->count)
                        rx_ntc = 0;

                /* fetch next descriptor */
                rx_desc = IXGBE_RX_DESC(rx_ring, rx_ntc);
        }

        netdev_tx_reset_queue(txring_txq(tx_ring));

        /* re-map buffers to ring, store next to clean values */
        ixgbe_alloc_rx_buffers(rx_ring, count);
        rx_ring->next_to_clean = rx_ntc;
        tx_ring->next_to_clean = tx_ntc;

        return count;
}

static int ixgbe_run_loopback_test(struct ixgbe_adapter *adapter)
{
        struct ixgbe_ring *tx_ring = &adapter->test_tx_ring;
        struct ixgbe_ring *rx_ring = &adapter->test_rx_ring;
        int i, j, lc, good_cnt, ret_val = 0;
        unsigned int size = 1024;
        netdev_tx_t tx_ret_val;
        struct sk_buff *skb;
        u32 flags_orig = adapter->flags;

        /* DCB can modify the frames on Tx */
        adapter->flags &= ~IXGBE_FLAG_DCB_ENABLED;

        /* allocate test skb */
        skb = alloc_skb(size, GFP_KERNEL);
        if (!skb)
                return 11;

        /* place data into test skb */
        ixgbe_create_lbtest_frame(skb, size);
        skb_put(skb, size);

        /*
         * Calculate the loop count based on the largest descriptor ring
         * The idea is to wrap the largest ring a number of times using 64
         * send/receive pairs during each loop
         */

        if (rx_ring->count <= tx_ring->count)
                lc = ((tx_ring->count / 64) * 2) + 1;
        else
                lc = ((rx_ring->count / 64) * 2) + 1;

        for (j = 0; j <= lc; j++) {
                /* reset count of good packets */
                good_cnt = 0;

                /* place 64 packets on the transmit queue*/
                for (i = 0; i < 64; i++) {
                        skb_get(skb);
                        tx_ret_val = ixgbe_xmit_frame_ring(skb,
                                                           adapter,
                                                           tx_ring);
                        if (tx_ret_val == NETDEV_TX_OK)
                                good_cnt++;
                }

                if (good_cnt != 64) {
                        ret_val = 12;
                        break;
                }

                /* allow 200 milliseconds for packets to go from Tx to Rx */
                msleep(200);

                good_cnt = ixgbe_clean_test_rings(rx_ring, tx_ring, size);
                if (good_cnt != 64) {
                        ret_val = 13;
                        break;
                }
        }

        /* free the original skb */
        kfree_skb(skb);
        adapter->flags = flags_orig;

        return ret_val;
}

static int ixgbe_loopback_test(struct ixgbe_adapter *adapter, u64 *data)
{
        *data = ixgbe_setup_desc_rings(adapter);
        if (*data)
                goto out;
        *data = ixgbe_setup_loopback_test(adapter);
        if (*data)
                goto err_loopback;
        *data = ixgbe_run_loopback_test(adapter);
        ixgbe_loopback_cleanup(adapter);

err_loopback:
        ixgbe_free_desc_rings(adapter);
out:
        return *data;
}

static void ixgbe_diag_test(struct net_device *netdev,
                            struct ethtool_test *eth_test, u64 *data)
{
        struct ixgbe_adapter *adapter = ixgbe_from_netdev(netdev);
        bool if_running = netif_running(netdev);

        if (ixgbe_removed(adapter->hw.hw_addr)) {
                e_err(hw, "Adapter removed - test blocked\n");
                data[0] = 1;
                data[1] = 1;
                data[2] = 1;
                data[3] = 1;
                data[4] = 1;
                eth_test->flags |= ETH_TEST_FL_FAILED;
                return;
        }
        set_bit(__IXGBE_TESTING, &adapter->state);
        if (eth_test->flags == ETH_TEST_FL_OFFLINE) {
                struct ixgbe_hw *hw = &adapter->hw;

                if (adapter->flags & IXGBE_FLAG_SRIOV_ENABLED) {
                        int i;
                        for (i = 0; i < adapter->num_vfs; i++) {
                                if (adapter->vfinfo[i].clear_to_send) {
                                        netdev_warn(netdev, "offline diagnostic is not supported when VFs are present\n");
                                        data[0] = 1;
                                        data[1] = 1;
                                        data[2] = 1;
                                        data[3] = 1;
                                        data[4] = 1;
                                        eth_test->flags |= ETH_TEST_FL_FAILED;
                                        clear_bit(__IXGBE_TESTING,
                                                  &adapter->state);
                                        return;
                                }
                        }
                }

                /* Offline tests */
                e_info(hw, "offline testing starting\n");

                /* Link test performed before hardware reset so autoneg doesn't
                 * interfere with test result
                 */
                if (ixgbe_link_test(adapter, &data[4]))
                        eth_test->flags |= ETH_TEST_FL_FAILED;

                if (if_running)
                        /* indicate we're in test mode */
                        ixgbe_close(netdev);
                else
                        ixgbe_reset(adapter);

                e_info(hw, "register testing starting\n");
                if (ixgbe_reg_test(adapter, &data[0]))
                        eth_test->flags |= ETH_TEST_FL_FAILED;

                ixgbe_reset(adapter);
                e_info(hw, "eeprom testing starting\n");
                if (ixgbe_eeprom_test(adapter, &data[1]))
                        eth_test->flags |= ETH_TEST_FL_FAILED;

                ixgbe_reset(adapter);
                e_info(hw, "interrupt testing starting\n");
                if (ixgbe_intr_test(adapter, &data[2]))
                        eth_test->flags |= ETH_TEST_FL_FAILED;

                /* If SRIOV or VMDq is enabled then skip MAC
                 * loopback diagnostic. */
                if (adapter->flags & (IXGBE_FLAG_SRIOV_ENABLED |
                                      IXGBE_FLAG_VMDQ_ENABLED)) {
                        e_info(hw, "Skip MAC loopback diagnostic in VT mode\n");
                        data[3] = 0;
                        goto skip_loopback;
                }

                ixgbe_reset(adapter);
                e_info(hw, "loopback testing starting\n");
                if (ixgbe_loopback_test(adapter, &data[3]))
                        eth_test->flags |= ETH_TEST_FL_FAILED;

skip_loopback:
                ixgbe_reset(adapter);

                /* clear testing bit and return adapter to previous state */
                clear_bit(__IXGBE_TESTING, &adapter->state);
                if (if_running)
                        ixgbe_open(netdev);
                else if (hw->mac.ops.disable_tx_laser)
                        hw->mac.ops.disable_tx_laser(hw);
        } else {
                e_info(hw, "online testing starting\n");

                /* Online tests */
                if (ixgbe_link_test(adapter, &data[4]))
                        eth_test->flags |= ETH_TEST_FL_FAILED;

                /* Offline tests aren't run; pass by default */
                data[0] = 0;
                data[1] = 0;
                data[2] = 0;
                data[3] = 0;

                clear_bit(__IXGBE_TESTING, &adapter->state);
        }
}

static int ixgbe_wol_exclusion(struct ixgbe_adapter *adapter,
                               struct ethtool_wolinfo *wol)
{
        struct ixgbe_hw *hw = &adapter->hw;
        int retval = 0;

        /* WOL not supported for all devices */
        if (!ixgbe_wol_supported(adapter, hw->device_id,
                                 hw->subsystem_device_id)) {
                retval = 1;
                wol->supported = 0;
        }

        return retval;
}

static void ixgbe_get_wol(struct net_device *netdev,
                          struct ethtool_wolinfo *wol)
{
        struct ixgbe_adapter *adapter = ixgbe_from_netdev(netdev);

        wol->supported = WAKE_UCAST | WAKE_MCAST |
                         WAKE_BCAST | WAKE_MAGIC;
        wol->wolopts = 0;

        if (ixgbe_wol_exclusion(adapter, wol) ||
            !device_can_wakeup(&adapter->pdev->dev))
                return;

        if (adapter->wol & IXGBE_WUFC_EX)
                wol->wolopts |= WAKE_UCAST;
        if (adapter->wol & IXGBE_WUFC_MC)
                wol->wolopts |= WAKE_MCAST;
        if (adapter->wol & IXGBE_WUFC_BC)
                wol->wolopts |= WAKE_BCAST;
        if (adapter->wol & IXGBE_WUFC_MAG)
                wol->wolopts |= WAKE_MAGIC;
}

static int ixgbe_set_wol(struct net_device *netdev, struct ethtool_wolinfo *wol)
{
        struct ixgbe_adapter *adapter = ixgbe_from_netdev(netdev);

        if (wol->wolopts & (WAKE_PHY | WAKE_ARP | WAKE_MAGICSECURE |
                            WAKE_FILTER))
                return -EOPNOTSUPP;

        if (ixgbe_wol_exclusion(adapter, wol))
                return wol->wolopts ? -EOPNOTSUPP : 0;

        adapter->wol = 0;

        if (wol->wolopts & WAKE_UCAST)
                adapter->wol |= IXGBE_WUFC_EX;
        if (wol->wolopts & WAKE_MCAST)
                adapter->wol |= IXGBE_WUFC_MC;
        if (wol->wolopts & WAKE_BCAST)
                adapter->wol |= IXGBE_WUFC_BC;
        if (wol->wolopts & WAKE_MAGIC)
                adapter->wol |= IXGBE_WUFC_MAG;

        device_set_wakeup_enable(&adapter->pdev->dev, adapter->wol);

        return 0;
}

static int ixgbe_set_wol_acpi(struct net_device *netdev,
                              struct ethtool_wolinfo *wol)
{
        struct ixgbe_adapter *adapter = ixgbe_from_netdev(netdev);
        struct ixgbe_hw *hw = &adapter->hw;
        u32 grc;

        if (ixgbe_wol_exclusion(adapter, wol))
                return wol->wolopts ? -EOPNOTSUPP : 0;

        /* disable APM wakeup */
        grc = IXGBE_READ_REG(hw, IXGBE_GRC_X550EM_a);
        grc &= ~IXGBE_GRC_APME;
        IXGBE_WRITE_REG(hw, IXGBE_GRC_X550EM_a, grc);

        /* erase existing filters */
        IXGBE_WRITE_REG(hw, IXGBE_WUFC, 0);
        adapter->wol = 0;

        if (wol->wolopts & WAKE_UCAST)
                adapter->wol |= IXGBE_WUFC_EX;
        if (wol->wolopts & WAKE_MCAST)
                adapter->wol |= IXGBE_WUFC_MC;
        if (wol->wolopts & WAKE_BCAST)
                adapter->wol |= IXGBE_WUFC_BC;

        IXGBE_WRITE_REG(hw, IXGBE_WUC, IXGBE_WUC_PME_EN);
        IXGBE_WRITE_REG(hw, IXGBE_WUFC, adapter->wol);

        hw->wol_enabled = adapter->wol;
        device_set_wakeup_enable(&adapter->pdev->dev, adapter->wol);

        return 0;
}

static int ixgbe_set_wol_e610(struct net_device *netdev,
                              struct ethtool_wolinfo *wol)
{
        if (wol->wolopts & (WAKE_UCAST | WAKE_MCAST | WAKE_BCAST))
                return ixgbe_set_wol_acpi(netdev, wol);
        else
                return ixgbe_set_wol(netdev, wol);
}

static int ixgbe_nway_reset(struct net_device *netdev)
{
        struct ixgbe_adapter *adapter = ixgbe_from_netdev(netdev);

        if (netif_running(netdev))
                ixgbe_reinit_locked(adapter);

        return 0;
}

static int ixgbe_set_phys_id(struct net_device *netdev,
                             enum ethtool_phys_id_state state)
{
        struct ixgbe_adapter *adapter = ixgbe_from_netdev(netdev);
        struct ixgbe_hw *hw = &adapter->hw;

        if (!hw->mac.ops.led_on || !hw->mac.ops.led_off)
                return -EOPNOTSUPP;

        switch (state) {
        case ETHTOOL_ID_ACTIVE:
                adapter->led_reg = IXGBE_READ_REG(hw, IXGBE_LEDCTL);
                return 2;

        case ETHTOOL_ID_ON:
                hw->mac.ops.led_on(hw, hw->mac.led_link_act);
                break;

        case ETHTOOL_ID_OFF:
                hw->mac.ops.led_off(hw, hw->mac.led_link_act);
                break;

        case ETHTOOL_ID_INACTIVE:
                /* Restore LED settings */
                IXGBE_WRITE_REG(&adapter->hw, IXGBE_LEDCTL, adapter->led_reg);
                break;
        }

        return 0;
}

static int ixgbe_set_phys_id_e610(struct net_device *netdev,
                                  enum ethtool_phys_id_state state)
{
        struct ixgbe_adapter *adapter = ixgbe_from_netdev(netdev);
        bool led_active;

        switch (state) {
        case ETHTOOL_ID_ACTIVE:
                led_active = true;
                break;
        case ETHTOOL_ID_INACTIVE:
                led_active = false;
                break;
        default:
                return -EOPNOTSUPP;
        }

        return ixgbe_aci_set_port_id_led(&adapter->hw, !led_active);
}

static int ixgbe_get_coalesce(struct net_device *netdev,
                              struct ethtool_coalesce *ec,
                              struct kernel_ethtool_coalesce *kernel_coal,
                              struct netlink_ext_ack *extack)
{
        struct ixgbe_adapter *adapter = ixgbe_from_netdev(netdev);

        /* only valid if in constant ITR mode */
        if (adapter->rx_itr_setting <= 1)
                ec->rx_coalesce_usecs = adapter->rx_itr_setting;
        else
                ec->rx_coalesce_usecs = adapter->rx_itr_setting >> 2;

        /* if in mixed tx/rx queues per vector mode, report only rx settings */
        if (adapter->q_vector[0]->tx.count && adapter->q_vector[0]->rx.count)
                return 0;

        /* only valid if in constant ITR mode */
        if (adapter->tx_itr_setting <= 1)
                ec->tx_coalesce_usecs = adapter->tx_itr_setting;
        else
                ec->tx_coalesce_usecs = adapter->tx_itr_setting >> 2;

        return 0;
}

/*
 * this function must be called before setting the new value of
 * rx_itr_setting
 */
static bool ixgbe_update_rsc(struct ixgbe_adapter *adapter)
{
        struct net_device *netdev = adapter->netdev;

        /* nothing to do if LRO or RSC are not enabled */
        if (!(adapter->flags2 & IXGBE_FLAG2_RSC_CAPABLE) ||
            !(netdev->features & NETIF_F_LRO))
                return false;

        /* check the feature flag value and enable RSC if necessary */
        if (adapter->rx_itr_setting == 1 ||
            adapter->rx_itr_setting > IXGBE_MIN_RSC_ITR) {
                if (!(adapter->flags2 & IXGBE_FLAG2_RSC_ENABLED)) {
                        adapter->flags2 |= IXGBE_FLAG2_RSC_ENABLED;
                        e_info(probe, "rx-usecs value high enough to re-enable RSC\n");
                        return true;
                }
        /* if interrupt rate is too high then disable RSC */
        } else if (adapter->flags2 & IXGBE_FLAG2_RSC_ENABLED) {
                adapter->flags2 &= ~IXGBE_FLAG2_RSC_ENABLED;
                e_info(probe, "rx-usecs set too low, disabling RSC\n");
                return true;
        }
        return false;
}

static int ixgbe_set_coalesce(struct net_device *netdev,
                              struct ethtool_coalesce *ec,
                              struct kernel_ethtool_coalesce *kernel_coal,
                              struct netlink_ext_ack *extack)
{
        struct ixgbe_adapter *adapter = ixgbe_from_netdev(netdev);
        struct ixgbe_q_vector *q_vector;
        int i;
        u16 tx_itr_param, rx_itr_param, tx_itr_prev;
        bool need_reset = false;

        if (adapter->q_vector[0]->tx.count && adapter->q_vector[0]->rx.count) {
                /* reject Tx specific changes in case of mixed RxTx vectors */
                if (ec->tx_coalesce_usecs)
                        return -EINVAL;
                tx_itr_prev = adapter->rx_itr_setting;
        } else {
                tx_itr_prev = adapter->tx_itr_setting;
        }

        if ((ec->rx_coalesce_usecs > (IXGBE_MAX_EITR >> 2)) ||
            (ec->tx_coalesce_usecs > (IXGBE_MAX_EITR >> 2)))
                return -EINVAL;

        if (ec->rx_coalesce_usecs > 1)
                adapter->rx_itr_setting = ec->rx_coalesce_usecs << 2;
        else
                adapter->rx_itr_setting = ec->rx_coalesce_usecs;

        if (adapter->rx_itr_setting == 1)
                rx_itr_param = IXGBE_20K_ITR;
        else
                rx_itr_param = adapter->rx_itr_setting;

        if (ec->tx_coalesce_usecs > 1)
                adapter->tx_itr_setting = ec->tx_coalesce_usecs << 2;
        else
                adapter->tx_itr_setting = ec->tx_coalesce_usecs;

        if (adapter->tx_itr_setting == 1)
                tx_itr_param = IXGBE_12K_ITR;
        else
                tx_itr_param = adapter->tx_itr_setting;

        /* mixed Rx/Tx */
        if (adapter->q_vector[0]->tx.count && adapter->q_vector[0]->rx.count)
                adapter->tx_itr_setting = adapter->rx_itr_setting;

        /* detect ITR changes that require update of TXDCTL.WTHRESH */
        if ((adapter->tx_itr_setting != 1) &&
            (adapter->tx_itr_setting < IXGBE_100K_ITR)) {
                if ((tx_itr_prev == 1) ||
                    (tx_itr_prev >= IXGBE_100K_ITR))
                        need_reset = true;
        } else {
                if ((tx_itr_prev != 1) &&
                    (tx_itr_prev < IXGBE_100K_ITR))
                        need_reset = true;
        }

        /* check the old value and enable RSC if necessary */
        need_reset |= ixgbe_update_rsc(adapter);

        for (i = 0; i < adapter->num_q_vectors; i++) {
                q_vector = adapter->q_vector[i];
                if (q_vector->tx.count && !q_vector->rx.count)
                        /* tx only */
                        q_vector->itr = tx_itr_param;
                else
                        /* rx only or mixed */
                        q_vector->itr = rx_itr_param;
                ixgbe_write_eitr(q_vector);
        }

        /*
         * do reset here at the end to make sure EITR==0 case is handled
         * correctly w.r.t stopping tx, and changing TXDCTL.WTHRESH settings
         * also locks in RSC enable/disable which requires reset
         */
        if (need_reset)
                ixgbe_do_reset(netdev);

        return 0;
}

static int ixgbe_get_ethtool_fdir_entry(struct ixgbe_adapter *adapter,
                                        struct ethtool_rxnfc *cmd)
{
        union ixgbe_atr_input *mask = &adapter->fdir_mask;
        struct ethtool_rx_flow_spec *fsp =
                (struct ethtool_rx_flow_spec *)&cmd->fs;
        struct hlist_node *node2;
        struct ixgbe_fdir_filter *rule = NULL;

        /* report total rule count */
        cmd->data = (1024 << adapter->fdir_pballoc) - 2;

        hlist_for_each_entry_safe(rule, node2,
                                  &adapter->fdir_filter_list, fdir_node) {
                if (fsp->location <= rule->sw_idx)
                        break;
        }

        if (!rule || fsp->location != rule->sw_idx)
                return -EINVAL;

        /* fill out the flow spec entry */

        /* set flow type field */
        switch (rule->filter.formatted.flow_type) {
        case IXGBE_ATR_FLOW_TYPE_TCPV4:
                fsp->flow_type = TCP_V4_FLOW;
                break;
        case IXGBE_ATR_FLOW_TYPE_UDPV4:
                fsp->flow_type = UDP_V4_FLOW;
                break;
        case IXGBE_ATR_FLOW_TYPE_SCTPV4:
                fsp->flow_type = SCTP_V4_FLOW;
                break;
        case IXGBE_ATR_FLOW_TYPE_IPV4:
                fsp->flow_type = IP_USER_FLOW;
                fsp->h_u.usr_ip4_spec.ip_ver = ETH_RX_NFC_IP4;
                fsp->h_u.usr_ip4_spec.proto = 0;
                fsp->m_u.usr_ip4_spec.proto = 0;
                break;
        default:
                return -EINVAL;
        }

        fsp->h_u.tcp_ip4_spec.psrc = rule->filter.formatted.src_port;
        fsp->m_u.tcp_ip4_spec.psrc = mask->formatted.src_port;
        fsp->h_u.tcp_ip4_spec.pdst = rule->filter.formatted.dst_port;
        fsp->m_u.tcp_ip4_spec.pdst = mask->formatted.dst_port;
        fsp->h_u.tcp_ip4_spec.ip4src = rule->filter.formatted.src_ip[0];
        fsp->m_u.tcp_ip4_spec.ip4src = mask->formatted.src_ip[0];
        fsp->h_u.tcp_ip4_spec.ip4dst = rule->filter.formatted.dst_ip[0];
        fsp->m_u.tcp_ip4_spec.ip4dst = mask->formatted.dst_ip[0];
        fsp->h_ext.vlan_tci = rule->filter.formatted.vlan_id;
        fsp->m_ext.vlan_tci = mask->formatted.vlan_id;
        fsp->h_ext.vlan_etype = rule->filter.formatted.flex_bytes;
        fsp->m_ext.vlan_etype = mask->formatted.flex_bytes;
        fsp->h_ext.data[1] = htonl(rule->filter.formatted.vm_pool);
        fsp->m_ext.data[1] = htonl(mask->formatted.vm_pool);
        fsp->flow_type |= FLOW_EXT;

        /* record action */
        if (rule->action == IXGBE_FDIR_DROP_QUEUE)
                fsp->ring_cookie = RX_CLS_FLOW_DISC;
        else
                fsp->ring_cookie = rule->action;

        return 0;
}

static int ixgbe_get_ethtool_fdir_all(struct ixgbe_adapter *adapter,
                                      struct ethtool_rxnfc *cmd,
                                      u32 *rule_locs)
{
        struct hlist_node *node2;
        struct ixgbe_fdir_filter *rule;
        int cnt = 0;

        /* report total rule count */
        cmd->data = (1024 << adapter->fdir_pballoc) - 2;

        hlist_for_each_entry_safe(rule, node2,
                                  &adapter->fdir_filter_list, fdir_node) {
                if (cnt == cmd->rule_cnt)
                        return -EMSGSIZE;
                rule_locs[cnt] = rule->sw_idx;
                cnt++;
        }

        cmd->rule_cnt = cnt;

        return 0;
}

static int ixgbe_get_rxfh_fields(struct net_device *dev,
                                 struct ethtool_rxfh_fields *cmd)
{
        struct ixgbe_adapter *adapter = ixgbe_from_netdev(dev);

        cmd->data = 0;

        /* Report default options for RSS on ixgbe */
        switch (cmd->flow_type) {
        case TCP_V4_FLOW:
                cmd->data |= RXH_L4_B_0_1 | RXH_L4_B_2_3;
                fallthrough;
        case UDP_V4_FLOW:
                if (adapter->flags2 & IXGBE_FLAG2_RSS_FIELD_IPV4_UDP)
                        cmd->data |= RXH_L4_B_0_1 | RXH_L4_B_2_3;
                fallthrough;
        case SCTP_V4_FLOW:
        case AH_ESP_V4_FLOW:
        case AH_V4_FLOW:
        case ESP_V4_FLOW:
        case IPV4_FLOW:
                cmd->data |= RXH_IP_SRC | RXH_IP_DST;
                break;
        case TCP_V6_FLOW:
                cmd->data |= RXH_L4_B_0_1 | RXH_L4_B_2_3;
                fallthrough;
        case UDP_V6_FLOW:
                if (adapter->flags2 & IXGBE_FLAG2_RSS_FIELD_IPV6_UDP)
                        cmd->data |= RXH_L4_B_0_1 | RXH_L4_B_2_3;
                fallthrough;
        case SCTP_V6_FLOW:
        case AH_ESP_V6_FLOW:
        case AH_V6_FLOW:
        case ESP_V6_FLOW:
        case IPV6_FLOW:
                cmd->data |= RXH_IP_SRC | RXH_IP_DST;
                break;
        default:
                return -EINVAL;
        }

        return 0;
}

static int ixgbe_rss_indir_tbl_max(struct ixgbe_adapter *adapter)
{
        if (adapter->hw.mac.type < ixgbe_mac_X550)
                return 16;
        else
                return 64;
}

static u32 ixgbe_get_rx_ring_count(struct net_device *dev)
{
        struct ixgbe_adapter *adapter = ixgbe_from_netdev(dev);

        return min_t(u32, adapter->num_rx_queues,
                     ixgbe_rss_indir_tbl_max(adapter));
}

static int ixgbe_get_rxnfc(struct net_device *dev, struct ethtool_rxnfc *cmd,
                           u32 *rule_locs)
{
        struct ixgbe_adapter *adapter = ixgbe_from_netdev(dev);
        int ret = -EOPNOTSUPP;

        switch (cmd->cmd) {
        case ETHTOOL_GRXCLSRLCNT:
                cmd->rule_cnt = adapter->fdir_filter_count;
                ret = 0;
                break;
        case ETHTOOL_GRXCLSRULE:
                ret = ixgbe_get_ethtool_fdir_entry(adapter, cmd);
                break;
        case ETHTOOL_GRXCLSRLALL:
                ret = ixgbe_get_ethtool_fdir_all(adapter, cmd, rule_locs);
                break;
        default:
                break;
        }

        return ret;
}

int ixgbe_update_ethtool_fdir_entry(struct ixgbe_adapter *adapter,
                                    struct ixgbe_fdir_filter *input,
                                    u16 sw_idx)
{
        struct ixgbe_hw *hw = &adapter->hw;
        struct hlist_node *node2;
        struct ixgbe_fdir_filter *rule, *parent;
        int err = -EINVAL;

        parent = NULL;
        rule = NULL;

        hlist_for_each_entry_safe(rule, node2,
                                  &adapter->fdir_filter_list, fdir_node) {
                /* hash found, or no matching entry */
                if (rule->sw_idx >= sw_idx)
                        break;
                parent = rule;
        }

        /* if there is an old rule occupying our place remove it */
        if (rule && (rule->sw_idx == sw_idx)) {
                if (!input || (rule->filter.formatted.bkt_hash !=
                               input->filter.formatted.bkt_hash)) {
                        err = ixgbe_fdir_erase_perfect_filter_82599(hw,
                                                                &rule->filter,
                                                                sw_idx);
                }

                hlist_del(&rule->fdir_node);
                kfree(rule);
                adapter->fdir_filter_count--;
        }

        /*
         * If no input this was a delete, err should be 0 if a rule was
         * successfully found and removed from the list else -EINVAL
         */
        if (!input)
                return err;

        /* initialize node and set software index */
        INIT_HLIST_NODE(&input->fdir_node);

        /* add filter to the list */
        if (parent)
                hlist_add_behind(&input->fdir_node, &parent->fdir_node);
        else
                hlist_add_head(&input->fdir_node,
                               &adapter->fdir_filter_list);

        /* update counts */
        adapter->fdir_filter_count++;

        return 0;
}

static int ixgbe_flowspec_to_flow_type(struct ethtool_rx_flow_spec *fsp,
                                       u8 *flow_type)
{
        switch (fsp->flow_type & ~FLOW_EXT) {
        case TCP_V4_FLOW:
                *flow_type = IXGBE_ATR_FLOW_TYPE_TCPV4;
                break;
        case UDP_V4_FLOW:
                *flow_type = IXGBE_ATR_FLOW_TYPE_UDPV4;
                break;
        case SCTP_V4_FLOW:
                *flow_type = IXGBE_ATR_FLOW_TYPE_SCTPV4;
                break;
        case IP_USER_FLOW:
                switch (fsp->h_u.usr_ip4_spec.proto) {
                case IPPROTO_TCP:
                        *flow_type = IXGBE_ATR_FLOW_TYPE_TCPV4;
                        break;
                case IPPROTO_UDP:
                        *flow_type = IXGBE_ATR_FLOW_TYPE_UDPV4;
                        break;
                case IPPROTO_SCTP:
                        *flow_type = IXGBE_ATR_FLOW_TYPE_SCTPV4;
                        break;
                case 0:
                        if (!fsp->m_u.usr_ip4_spec.proto) {
                                *flow_type = IXGBE_ATR_FLOW_TYPE_IPV4;
                                break;
                        }
                        fallthrough;
                default:
                        return 0;
                }
                break;
        default:
                return 0;
        }

        return 1;
}

static int ixgbe_add_ethtool_fdir_entry(struct ixgbe_adapter *adapter,
                                        struct ethtool_rxnfc *cmd)
{
        struct ethtool_rx_flow_spec *fsp =
                (struct ethtool_rx_flow_spec *)&cmd->fs;
        struct ixgbe_hw *hw = &adapter->hw;
        struct ixgbe_fdir_filter *input;
        union ixgbe_atr_input mask;
        u8 queue;
        int err;

        if (!(adapter->flags & IXGBE_FLAG_FDIR_PERFECT_CAPABLE))
                return -EOPNOTSUPP;

        /* ring_cookie is a masked into a set of queues and ixgbe pools or
         * we use the drop index.
         */
        if (fsp->ring_cookie == RX_CLS_FLOW_DISC) {
                queue = IXGBE_FDIR_DROP_QUEUE;
        } else {
                u32 ring = ethtool_get_flow_spec_ring(fsp->ring_cookie);
                u8 vf = ethtool_get_flow_spec_ring_vf(fsp->ring_cookie);

                if (!vf && (ring >= adapter->num_rx_queues))
                        return -EINVAL;
                else if (vf &&
                         ((vf > adapter->num_vfs) ||
                           ring >= adapter->num_rx_queues_per_pool))
                        return -EINVAL;

                /* Map the ring onto the absolute queue index */
                if (!vf)
                        queue = adapter->rx_ring[ring]->reg_idx;
                else
                        queue = ((vf - 1) *
                                adapter->num_rx_queues_per_pool) + ring;
        }

        /* Don't allow indexes to exist outside of available space */
        if (fsp->location >= ((1024 << adapter->fdir_pballoc) - 2)) {
                e_err(drv, "Location out of range\n");
                return -EINVAL;
        }

        input = kzalloc_obj(*input, GFP_ATOMIC);
        if (!input)
                return -ENOMEM;

        memset(&mask, 0, sizeof(union ixgbe_atr_input));

        /* set SW index */
        input->sw_idx = fsp->location;

        /* record flow type */
        if (!ixgbe_flowspec_to_flow_type(fsp,
                                         &input->filter.formatted.flow_type)) {
                e_err(drv, "Unrecognized flow type\n");
                goto err_out;
        }

        mask.formatted.flow_type = IXGBE_ATR_L4TYPE_IPV6_MASK |
                                   IXGBE_ATR_L4TYPE_MASK;

        if (input->filter.formatted.flow_type == IXGBE_ATR_FLOW_TYPE_IPV4)
                mask.formatted.flow_type &= IXGBE_ATR_L4TYPE_IPV6_MASK;

        /* Copy input into formatted structures */
        input->filter.formatted.src_ip[0] = fsp->h_u.tcp_ip4_spec.ip4src;
        mask.formatted.src_ip[0] = fsp->m_u.tcp_ip4_spec.ip4src;
        input->filter.formatted.dst_ip[0] = fsp->h_u.tcp_ip4_spec.ip4dst;
        mask.formatted.dst_ip[0] = fsp->m_u.tcp_ip4_spec.ip4dst;
        input->filter.formatted.src_port = fsp->h_u.tcp_ip4_spec.psrc;
        mask.formatted.src_port = fsp->m_u.tcp_ip4_spec.psrc;
        input->filter.formatted.dst_port = fsp->h_u.tcp_ip4_spec.pdst;
        mask.formatted.dst_port = fsp->m_u.tcp_ip4_spec.pdst;

        if (fsp->flow_type & FLOW_EXT) {
                input->filter.formatted.vm_pool =
                                (unsigned char)ntohl(fsp->h_ext.data[1]);
                mask.formatted.vm_pool =
                                (unsigned char)ntohl(fsp->m_ext.data[1]);
                input->filter.formatted.vlan_id = fsp->h_ext.vlan_tci;
                mask.formatted.vlan_id = fsp->m_ext.vlan_tci;
                input->filter.formatted.flex_bytes =
                                                fsp->h_ext.vlan_etype;
                mask.formatted.flex_bytes = fsp->m_ext.vlan_etype;
        }

        /* determine if we need to drop or route the packet */
        if (fsp->ring_cookie == RX_CLS_FLOW_DISC)
                input->action = IXGBE_FDIR_DROP_QUEUE;
        else
                input->action = fsp->ring_cookie;

        spin_lock(&adapter->fdir_perfect_lock);

        if (hlist_empty(&adapter->fdir_filter_list)) {
                /* save mask and program input mask into HW */
                memcpy(&adapter->fdir_mask, &mask, sizeof(mask));
                err = ixgbe_fdir_set_input_mask_82599(hw, &mask);
                if (err) {
                        e_err(drv, "Error writing mask\n");
                        goto err_out_w_lock;
                }
        } else if (memcmp(&adapter->fdir_mask, &mask, sizeof(mask))) {
                e_err(drv, "Only one mask supported per port\n");
                goto err_out_w_lock;
        }

        /* apply mask and compute/store hash */
        ixgbe_atr_compute_perfect_hash_82599(&input->filter, &mask);

        /* program filters to filter memory */
        err = ixgbe_fdir_write_perfect_filter_82599(hw,
                                &input->filter, input->sw_idx, queue);
        if (err)
                goto err_out_w_lock;

        ixgbe_update_ethtool_fdir_entry(adapter, input, input->sw_idx);

        spin_unlock(&adapter->fdir_perfect_lock);

        return err;
err_out_w_lock:
        spin_unlock(&adapter->fdir_perfect_lock);
err_out:
        kfree(input);
        return -EINVAL;
}

static int ixgbe_del_ethtool_fdir_entry(struct ixgbe_adapter *adapter,
                                        struct ethtool_rxnfc *cmd)
{
        struct ethtool_rx_flow_spec *fsp =
                (struct ethtool_rx_flow_spec *)&cmd->fs;
        int err;

        spin_lock(&adapter->fdir_perfect_lock);
        err = ixgbe_update_ethtool_fdir_entry(adapter, NULL, fsp->location);
        spin_unlock(&adapter->fdir_perfect_lock);

        return err;
}

#define UDP_RSS_FLAGS (IXGBE_FLAG2_RSS_FIELD_IPV4_UDP | \
                       IXGBE_FLAG2_RSS_FIELD_IPV6_UDP)
static int ixgbe_set_rxfh_fields(struct net_device *dev,
                                 const struct ethtool_rxfh_fields *nfc,
                                 struct netlink_ext_ack *extack)
{
        struct ixgbe_adapter *adapter = ixgbe_from_netdev(dev);
        u32 flags2 = adapter->flags2;

        /*
         * RSS does not support anything other than hashing
         * to queues on src and dst IPs and ports
         */
        if (nfc->data & ~(RXH_IP_SRC | RXH_IP_DST |
                          RXH_L4_B_0_1 | RXH_L4_B_2_3))
                return -EINVAL;

        switch (nfc->flow_type) {
        case TCP_V4_FLOW:
        case TCP_V6_FLOW:
                if (!(nfc->data & RXH_IP_SRC) ||
                    !(nfc->data & RXH_IP_DST) ||
                    !(nfc->data & RXH_L4_B_0_1) ||
                    !(nfc->data & RXH_L4_B_2_3))
                        return -EINVAL;
                break;
        case UDP_V4_FLOW:
                if (!(nfc->data & RXH_IP_SRC) ||
                    !(nfc->data & RXH_IP_DST))
                        return -EINVAL;
                switch (nfc->data & (RXH_L4_B_0_1 | RXH_L4_B_2_3)) {
                case 0:
                        flags2 &= ~IXGBE_FLAG2_RSS_FIELD_IPV4_UDP;
                        break;
                case (RXH_L4_B_0_1 | RXH_L4_B_2_3):
                        flags2 |= IXGBE_FLAG2_RSS_FIELD_IPV4_UDP;
                        break;
                default:
                        return -EINVAL;
                }
                break;
        case UDP_V6_FLOW:
                if (!(nfc->data & RXH_IP_SRC) ||
                    !(nfc->data & RXH_IP_DST))
                        return -EINVAL;
                switch (nfc->data & (RXH_L4_B_0_1 | RXH_L4_B_2_3)) {
                case 0:
                        flags2 &= ~IXGBE_FLAG2_RSS_FIELD_IPV6_UDP;
                        break;
                case (RXH_L4_B_0_1 | RXH_L4_B_2_3):
                        flags2 |= IXGBE_FLAG2_RSS_FIELD_IPV6_UDP;
                        break;
                default:
                        return -EINVAL;
                }
                break;
        case AH_ESP_V4_FLOW:
        case AH_V4_FLOW:
        case ESP_V4_FLOW:
        case SCTP_V4_FLOW:
        case AH_ESP_V6_FLOW:
        case AH_V6_FLOW:
        case ESP_V6_FLOW:
        case SCTP_V6_FLOW:
                if (!(nfc->data & RXH_IP_SRC) ||
                    !(nfc->data & RXH_IP_DST) ||
                    (nfc->data & RXH_L4_B_0_1) ||
                    (nfc->data & RXH_L4_B_2_3))
                        return -EINVAL;
                break;
        default:
                return -EINVAL;
        }

        /* if we changed something we need to update flags */
        if (flags2 != adapter->flags2) {
                struct ixgbe_hw *hw = &adapter->hw;
                u32 mrqc;
                unsigned int pf_pool = adapter->num_vfs;

                if ((hw->mac.type >= ixgbe_mac_X550) &&
                    (adapter->flags & IXGBE_FLAG_SRIOV_ENABLED))
                        mrqc = IXGBE_READ_REG(hw, IXGBE_PFVFMRQC(pf_pool));
                else
                        mrqc = IXGBE_READ_REG(hw, IXGBE_MRQC);

                if ((flags2 & UDP_RSS_FLAGS) &&
                    !(adapter->flags2 & UDP_RSS_FLAGS))
                        e_warn(drv, "enabling UDP RSS: fragmented packets may arrive out of order to the stack above\n");

                adapter->flags2 = flags2;

                /* Perform hash on these packet types */
                mrqc |= IXGBE_MRQC_RSS_FIELD_IPV4
                      | IXGBE_MRQC_RSS_FIELD_IPV4_TCP
                      | IXGBE_MRQC_RSS_FIELD_IPV6
                      | IXGBE_MRQC_RSS_FIELD_IPV6_TCP;

                mrqc &= ~(IXGBE_MRQC_RSS_FIELD_IPV4_UDP |
                          IXGBE_MRQC_RSS_FIELD_IPV6_UDP);

                if (flags2 & IXGBE_FLAG2_RSS_FIELD_IPV4_UDP)
                        mrqc |= IXGBE_MRQC_RSS_FIELD_IPV4_UDP;

                if (flags2 & IXGBE_FLAG2_RSS_FIELD_IPV6_UDP)
                        mrqc |= IXGBE_MRQC_RSS_FIELD_IPV6_UDP;

                if ((hw->mac.type >= ixgbe_mac_X550) &&
                    (adapter->flags & IXGBE_FLAG_SRIOV_ENABLED))
                        IXGBE_WRITE_REG(hw, IXGBE_PFVFMRQC(pf_pool), mrqc);
                else
                        IXGBE_WRITE_REG(hw, IXGBE_MRQC, mrqc);
        }

        return 0;
}

static int ixgbe_set_rxnfc(struct net_device *dev, struct ethtool_rxnfc *cmd)
{
        struct ixgbe_adapter *adapter = ixgbe_from_netdev(dev);
        int ret = -EOPNOTSUPP;

        switch (cmd->cmd) {
        case ETHTOOL_SRXCLSRLINS:
                ret = ixgbe_add_ethtool_fdir_entry(adapter, cmd);
                break;
        case ETHTOOL_SRXCLSRLDEL:
                ret = ixgbe_del_ethtool_fdir_entry(adapter, cmd);
                break;
        default:
                break;
        }

        return ret;
}

static u32 ixgbe_get_rxfh_key_size(struct net_device *netdev)
{
        return IXGBE_RSS_KEY_SIZE;
}

static u32 ixgbe_rss_indir_size(struct net_device *netdev)
{
        struct ixgbe_adapter *adapter = ixgbe_from_netdev(netdev);

        return ixgbe_rss_indir_tbl_entries(adapter);
}

static void ixgbe_get_reta(struct ixgbe_adapter *adapter, u32 *indir)
{
        int i, reta_size = ixgbe_rss_indir_tbl_entries(adapter);
        u16 rss_m = adapter->ring_feature[RING_F_RSS].mask;

        if (adapter->flags & IXGBE_FLAG_SRIOV_ENABLED)
                rss_m = adapter->ring_feature[RING_F_RSS].indices - 1;

        for (i = 0; i < reta_size; i++)
                indir[i] = adapter->rss_indir_tbl[i] & rss_m;
}

static int ixgbe_get_rxfh(struct net_device *netdev,
                          struct ethtool_rxfh_param *rxfh)
{
        struct ixgbe_adapter *adapter = ixgbe_from_netdev(netdev);

        rxfh->hfunc = ETH_RSS_HASH_TOP;

        if (rxfh->indir)
                ixgbe_get_reta(adapter, rxfh->indir);

        if (rxfh->key)
                memcpy(rxfh->key, adapter->rss_key,
                       ixgbe_get_rxfh_key_size(netdev));

        return 0;
}

static int ixgbe_set_rxfh(struct net_device *netdev,
                          struct ethtool_rxfh_param *rxfh,
                          struct netlink_ext_ack *extack)
{
        struct ixgbe_adapter *adapter = ixgbe_from_netdev(netdev);
        int i;
        u32 reta_entries = ixgbe_rss_indir_tbl_entries(adapter);

        if (rxfh->hfunc != ETH_RSS_HASH_NO_CHANGE &&
            rxfh->hfunc != ETH_RSS_HASH_TOP)
                return -EOPNOTSUPP;

        /* Fill out the redirection table */
        if (rxfh->indir) {
                int max_queues = min_t(int, adapter->num_rx_queues,
                                       ixgbe_rss_indir_tbl_max(adapter));

                /*Allow at least 2 queues w/ SR-IOV.*/
                if ((adapter->flags & IXGBE_FLAG_SRIOV_ENABLED) &&
                    (max_queues < 2))
                        max_queues = 2;

                /* Verify user input. */
                for (i = 0; i < reta_entries; i++)
                        if (rxfh->indir[i] >= max_queues)
                                return -EINVAL;

                for (i = 0; i < reta_entries; i++)
                        adapter->rss_indir_tbl[i] = rxfh->indir[i];

                ixgbe_store_reta(adapter);
        }

        /* Fill out the rss hash key */
        if (rxfh->key) {
                memcpy(adapter->rss_key, rxfh->key,
                       ixgbe_get_rxfh_key_size(netdev));
                ixgbe_store_key(adapter);
        }

        return 0;
}

static int ixgbe_get_ts_info(struct net_device *dev,
                             struct kernel_ethtool_ts_info *info)
{
        struct ixgbe_adapter *adapter = ixgbe_from_netdev(dev);

        /* we always support timestamping disabled */
        info->rx_filters = BIT(HWTSTAMP_FILTER_NONE);

        switch (adapter->hw.mac.type) {
        case ixgbe_mac_X550:
        case ixgbe_mac_X550EM_x:
        case ixgbe_mac_x550em_a:
        case ixgbe_mac_e610:
                info->rx_filters |= BIT(HWTSTAMP_FILTER_ALL);
                break;
        case ixgbe_mac_X540:
        case ixgbe_mac_82599EB:
                info->rx_filters |=
                        BIT(HWTSTAMP_FILTER_PTP_V1_L4_SYNC) |
                        BIT(HWTSTAMP_FILTER_PTP_V1_L4_DELAY_REQ) |
                        BIT(HWTSTAMP_FILTER_PTP_V2_EVENT);
                break;
        default:
                return ethtool_op_get_ts_info(dev, info);
        }

        info->so_timestamping =
                SOF_TIMESTAMPING_TX_SOFTWARE |
                SOF_TIMESTAMPING_TX_HARDWARE |
                SOF_TIMESTAMPING_RX_HARDWARE |
                SOF_TIMESTAMPING_RAW_HARDWARE;

        if (adapter->ptp_clock)
                info->phc_index = ptp_clock_index(adapter->ptp_clock);

        info->tx_types =
                BIT(HWTSTAMP_TX_OFF) |
                BIT(HWTSTAMP_TX_ON);

        return 0;
}

static unsigned int ixgbe_max_channels(struct ixgbe_adapter *adapter)
{
        unsigned int max_combined;
        u8 tcs = adapter->hw_tcs;

        if (!(adapter->flags & IXGBE_FLAG_MSIX_ENABLED)) {
                /* We only support one q_vector without MSI-X */
                max_combined = 1;
        } else if (adapter->flags & IXGBE_FLAG_SRIOV_ENABLED) {
                /* Limit value based on the queue mask */
                max_combined = adapter->ring_feature[RING_F_RSS].mask + 1;
        } else if (tcs > 1) {
                /* For DCB report channels per traffic class */
                if (adapter->hw.mac.type == ixgbe_mac_82598EB) {
                        /* 8 TC w/ 4 queues per TC */
                        max_combined = 4;
                } else if (tcs > 4) {
                        /* 8 TC w/ 8 queues per TC */
                        max_combined = 8;
                } else {
                        /* 4 TC w/ 16 queues per TC */
                        max_combined = 16;
                }
        } else if (adapter->atr_sample_rate) {
                /* support up to 64 queues with ATR */
                max_combined = IXGBE_MAX_FDIR_INDICES;
        } else {
                /* support up to 16 queues with RSS */
                max_combined = ixgbe_max_rss_indices(adapter);
        }

        return min_t(int, max_combined, num_online_cpus());
}

static void ixgbe_get_channels(struct net_device *dev,
                               struct ethtool_channels *ch)
{
        struct ixgbe_adapter *adapter = ixgbe_from_netdev(dev);

        /* report maximum channels */
        ch->max_combined = ixgbe_max_channels(adapter);

        /* report info for other vector */
        if (adapter->flags & IXGBE_FLAG_MSIX_ENABLED) {
                ch->max_other = NON_Q_VECTORS;
                ch->other_count = NON_Q_VECTORS;
        }

        /* record RSS queues */
        ch->combined_count = adapter->ring_feature[RING_F_RSS].indices;

        /* nothing else to report if RSS is disabled */
        if (ch->combined_count == 1)
                return;

        /* we do not support ATR queueing if SR-IOV is enabled */
        if (adapter->flags & IXGBE_FLAG_SRIOV_ENABLED)
                return;

        /* same thing goes for being DCB enabled */
        if (adapter->hw_tcs > 1)
                return;

        /* if ATR is disabled we can exit */
        if (!adapter->atr_sample_rate)
                return;

        /* report flow director queues as maximum channels */
        ch->combined_count = adapter->ring_feature[RING_F_FDIR].indices;
}

static int ixgbe_set_channels(struct net_device *dev,
                              struct ethtool_channels *ch)
{
        struct ixgbe_adapter *adapter = ixgbe_from_netdev(dev);
        unsigned int count = ch->combined_count;
        u8 max_rss_indices = ixgbe_max_rss_indices(adapter);

        /* verify they are not requesting separate vectors */
        if (!count || ch->rx_count || ch->tx_count)
                return -EINVAL;

        /* verify other_count has not changed */
        if (ch->other_count != NON_Q_VECTORS)
                return -EINVAL;

        /* verify the number of channels does not exceed hardware limits */
        if (count > ixgbe_max_channels(adapter))
                return -EINVAL;

        /* update feature limits from largest to smallest supported values */
        adapter->ring_feature[RING_F_FDIR].limit = count;

        /* cap RSS limit */
        if (count > max_rss_indices)
                count = max_rss_indices;
        adapter->ring_feature[RING_F_RSS].limit = count;

#ifdef IXGBE_FCOE
        /* cap FCoE limit at 8 */
        if (count > IXGBE_FCRETA_SIZE)
                count = IXGBE_FCRETA_SIZE;
        adapter->ring_feature[RING_F_FCOE].limit = count;

#endif
        /* use setup TC to update any traffic class queue mapping */
        return ixgbe_setup_tc(dev, adapter->hw_tcs);
}

static int ixgbe_get_module_info(struct net_device *dev,
                                       struct ethtool_modinfo *modinfo)
{
        struct ixgbe_adapter *adapter = ixgbe_from_netdev(dev);
        struct ixgbe_hw *hw = &adapter->hw;
        u8 sff8472_rev, addr_mode;
        bool page_swap = false;
        int status;

        if (hw->phy.type == ixgbe_phy_fw)
                return -ENXIO;

        /* Check whether we support SFF-8472 or not */
        status = hw->phy.ops.read_i2c_eeprom(hw,
                                             IXGBE_SFF_SFF_8472_COMP,
                                             &sff8472_rev);
        if (status)
                return -EIO;

        /* addressing mode is not supported */
        status = hw->phy.ops.read_i2c_eeprom(hw,
                                             IXGBE_SFF_SFF_8472_SWAP,
                                             &addr_mode);
        if (status)
                return -EIO;

        if (addr_mode & IXGBE_SFF_ADDRESSING_MODE) {
                e_err(drv, "Address change required to access page 0xA2, but not supported. Please report the module type to the driver maintainers.\n");
                page_swap = true;
        }

        if (sff8472_rev == IXGBE_SFF_SFF_8472_UNSUP || page_swap ||
            !(addr_mode & IXGBE_SFF_DDM_IMPLEMENTED)) {
                /* We have a SFP, but it does not support SFF-8472 */
                modinfo->type = ETH_MODULE_SFF_8079;
                modinfo->eeprom_len = ETH_MODULE_SFF_8079_LEN;
        } else {
                /* We have a SFP which supports a revision of SFF-8472. */
                modinfo->type = ETH_MODULE_SFF_8472;
                modinfo->eeprom_len = ETH_MODULE_SFF_8472_LEN;
        }

        return 0;
}

static int ixgbe_get_module_eeprom(struct net_device *dev,
                                         struct ethtool_eeprom *ee,
                                         u8 *data)
{
        struct ixgbe_adapter *adapter = ixgbe_from_netdev(dev);
        struct ixgbe_hw *hw = &adapter->hw;
        int status = -EFAULT;
        u8 databyte = 0xFF;
        int i = 0;

        if (ee->len == 0)
                return -EINVAL;

        if (hw->phy.type == ixgbe_phy_fw)
                return -ENXIO;

        for (i = ee->offset; i < ee->offset + ee->len; i++) {
                /* I2C reads can take long time */
                if (test_bit(__IXGBE_IN_SFP_INIT, &adapter->state))
                        return -EBUSY;

                if (i < ETH_MODULE_SFF_8079_LEN)
                        status = hw->phy.ops.read_i2c_eeprom(hw, i, &databyte);
                else
                        status = hw->phy.ops.read_i2c_sff8472(hw, i, &databyte);

                if (status)
                        return -EIO;

                data[i - ee->offset] = databyte;
        }

        return 0;
}

static const struct {
        ixgbe_link_speed mac_speed;
        u32 link_mode;
} ixgbe_ls_map[] = {
        { IXGBE_LINK_SPEED_10_FULL, ETHTOOL_LINK_MODE_10baseT_Full_BIT },
        { IXGBE_LINK_SPEED_100_FULL, ETHTOOL_LINK_MODE_100baseT_Full_BIT },
        { IXGBE_LINK_SPEED_1GB_FULL, ETHTOOL_LINK_MODE_1000baseT_Full_BIT },
        { IXGBE_LINK_SPEED_2_5GB_FULL, ETHTOOL_LINK_MODE_2500baseX_Full_BIT },
        { IXGBE_LINK_SPEED_10GB_FULL, ETHTOOL_LINK_MODE_10000baseT_Full_BIT },
};

static const struct {
        u32 lp_advertised;
        u32 link_mode;
} ixgbe_lp_map[] = {
        { FW_PHY_ACT_UD_2_100M_TX_EEE, ETHTOOL_LINK_MODE_100baseT_Full_BIT },
        { FW_PHY_ACT_UD_2_1G_T_EEE, ETHTOOL_LINK_MODE_1000baseT_Full_BIT },
        { FW_PHY_ACT_UD_2_10G_T_EEE, ETHTOOL_LINK_MODE_10000baseT_Full_BIT },
        { FW_PHY_ACT_UD_2_1G_KX_EEE, ETHTOOL_LINK_MODE_1000baseKX_Full_BIT },
        { FW_PHY_ACT_UD_2_10G_KX4_EEE, ETHTOOL_LINK_MODE_10000baseKX4_Full_BIT },
        { FW_PHY_ACT_UD_2_10G_KR_EEE, ETHTOOL_LINK_MODE_10000baseKR_Full_BIT},
};

static int
ixgbe_get_eee_fw(struct ixgbe_adapter *adapter, struct ethtool_keee *edata)
{
        __ETHTOOL_DECLARE_LINK_MODE_MASK(common);
        u32 info[FW_PHY_ACT_DATA_COUNT] = { 0 };
        struct ixgbe_hw *hw = &adapter->hw;
        int rc;
        u16 i;

        rc = ixgbe_fw_phy_activity(hw, FW_PHY_ACT_UD_2, &info);
        if (rc)
                return rc;

        for (i = 0; i < ARRAY_SIZE(ixgbe_lp_map); ++i) {
                if (info[0] & ixgbe_lp_map[i].lp_advertised)
                        linkmode_set_bit(ixgbe_lp_map[i].link_mode,
                                         edata->lp_advertised);
        }

        for (i = 0; i < ARRAY_SIZE(ixgbe_ls_map); ++i) {
                if (hw->phy.eee_speeds_supported & ixgbe_ls_map[i].mac_speed)
                        linkmode_set_bit(ixgbe_ls_map[i].link_mode,
                                         edata->supported);
        }

        for (i = 0; i < ARRAY_SIZE(ixgbe_ls_map); ++i) {
                if (hw->phy.eee_speeds_advertised & ixgbe_ls_map[i].mac_speed)
                        linkmode_set_bit(ixgbe_ls_map[i].link_mode,
                                         edata->advertised);
        }

        edata->eee_enabled = !linkmode_empty(edata->advertised);
        edata->tx_lpi_enabled = edata->eee_enabled;

        linkmode_and(common, edata->advertised, edata->lp_advertised);
        edata->eee_active = !linkmode_empty(common);

        return 0;
}

static int ixgbe_get_eee(struct net_device *netdev, struct ethtool_keee *edata)
{
        struct ixgbe_adapter *adapter = ixgbe_from_netdev(netdev);
        struct ixgbe_hw *hw = &adapter->hw;

        if (!(adapter->flags2 & IXGBE_FLAG2_EEE_CAPABLE))
                return -EOPNOTSUPP;

        if (hw->phy.eee_speeds_supported && hw->phy.type == ixgbe_phy_fw)
                return ixgbe_get_eee_fw(adapter, edata);

        return -EOPNOTSUPP;
}

static int ixgbe_set_eee(struct net_device *netdev, struct ethtool_keee *edata)
{
        struct ixgbe_adapter *adapter = ixgbe_from_netdev(netdev);
        struct ixgbe_hw *hw = &adapter->hw;
        struct ethtool_keee eee_data;
        int ret_val;

        if (!(adapter->flags2 & IXGBE_FLAG2_EEE_CAPABLE))
                return -EOPNOTSUPP;

        memset(&eee_data, 0, sizeof(struct ethtool_keee));

        ret_val = ixgbe_get_eee(netdev, &eee_data);
        if (ret_val)
                return ret_val;

        if (eee_data.eee_enabled && !edata->eee_enabled) {
                if (eee_data.tx_lpi_enabled != edata->tx_lpi_enabled) {
                        e_err(drv, "Setting EEE tx-lpi is not supported\n");
                        return -EINVAL;
                }

                if (eee_data.tx_lpi_timer != edata->tx_lpi_timer) {
                        e_err(drv,
                              "Setting EEE Tx LPI timer is not supported\n");
                        return -EINVAL;
                }

                if (!linkmode_equal(eee_data.advertised, edata->advertised)) {
                        e_err(drv,
                              "Setting EEE advertised speeds is not supported\n");
                        return -EINVAL;
                }
        }

        if (eee_data.eee_enabled != edata->eee_enabled) {
                if (edata->eee_enabled) {
                        adapter->flags2 |= IXGBE_FLAG2_EEE_ENABLED;
                        hw->phy.eee_speeds_advertised =
                                                   hw->phy.eee_speeds_supported;
                } else {
                        adapter->flags2 &= ~IXGBE_FLAG2_EEE_ENABLED;
                        hw->phy.eee_speeds_advertised = 0;
                }

                /* reset link */
                if (netif_running(netdev))
                        ixgbe_reinit_locked(adapter);
                else
                        ixgbe_reset(adapter);
        }

        return 0;
}

static u32 ixgbe_get_priv_flags(struct net_device *netdev)
{
        struct ixgbe_adapter *adapter = ixgbe_from_netdev(netdev);
        u32 priv_flags = 0;

        if (adapter->flags2 & IXGBE_FLAG2_RX_LEGACY)
                priv_flags |= IXGBE_PRIV_FLAGS_LEGACY_RX;

        if (adapter->flags2 & IXGBE_FLAG2_VF_IPSEC_ENABLED)
                priv_flags |= IXGBE_PRIV_FLAGS_VF_IPSEC_EN;

        if (adapter->flags2 & IXGBE_FLAG2_AUTO_DISABLE_VF)
                priv_flags |= IXGBE_PRIV_FLAGS_AUTO_DISABLE_VF;

        return priv_flags;
}

static int ixgbe_set_priv_flags(struct net_device *netdev, u32 priv_flags)
{
        struct ixgbe_adapter *adapter = ixgbe_from_netdev(netdev);
        unsigned int flags2 = adapter->flags2;
        unsigned int i;

        flags2 &= ~IXGBE_FLAG2_RX_LEGACY;
        if (priv_flags & IXGBE_PRIV_FLAGS_LEGACY_RX)
                flags2 |= IXGBE_FLAG2_RX_LEGACY;

        flags2 &= ~IXGBE_FLAG2_VF_IPSEC_ENABLED;
        if (priv_flags & IXGBE_PRIV_FLAGS_VF_IPSEC_EN)
                flags2 |= IXGBE_FLAG2_VF_IPSEC_ENABLED;

        flags2 &= ~IXGBE_FLAG2_AUTO_DISABLE_VF;
        if (priv_flags & IXGBE_PRIV_FLAGS_AUTO_DISABLE_VF) {
                if (adapter->hw.mac.type == ixgbe_mac_82599EB) {
                        /* Reset primary abort counter */
                        for (i = 0; i < adapter->num_vfs; i++)
                                adapter->vfinfo[i].primary_abort_count = 0;

                        flags2 |= IXGBE_FLAG2_AUTO_DISABLE_VF;
                } else {
                        e_info(probe,
                               "Cannot set private flags: Operation not supported\n");
                        return -EOPNOTSUPP;
                }
        }

        if (flags2 != adapter->flags2) {
                adapter->flags2 = flags2;

                /* reset interface to repopulate queues */
                if (netif_running(netdev))
                        ixgbe_reinit_locked(adapter);
        }

        return 0;
}

static const struct ethtool_ops ixgbe_ethtool_ops = {
        .supported_coalesce_params = ETHTOOL_COALESCE_USECS,
        .get_drvinfo            = ixgbe_get_drvinfo,
        .get_regs_len           = ixgbe_get_regs_len,
        .get_regs               = ixgbe_get_regs,
        .get_wol                = ixgbe_get_wol,
        .set_wol                = ixgbe_set_wol,
        .nway_reset             = ixgbe_nway_reset,
        .get_link               = ethtool_op_get_link,
        .get_link_ext_stats     = ixgbe_get_link_ext_stats,
        .get_eeprom_len         = ixgbe_get_eeprom_len,
        .get_eeprom             = ixgbe_get_eeprom,
        .set_eeprom             = ixgbe_set_eeprom,
        .get_ringparam          = ixgbe_get_ringparam,
        .set_ringparam          = ixgbe_set_ringparam,
        .get_pause_stats        = ixgbe_get_pause_stats,
        .get_pauseparam         = ixgbe_get_pauseparam,
        .set_pauseparam         = ixgbe_set_pauseparam,
        .get_msglevel           = ixgbe_get_msglevel,
        .set_msglevel           = ixgbe_set_msglevel,
        .self_test              = ixgbe_diag_test,
        .get_strings            = ixgbe_get_strings,
        .set_phys_id            = ixgbe_set_phys_id,
        .get_sset_count         = ixgbe_get_sset_count,
        .get_ethtool_stats      = ixgbe_get_ethtool_stats,
        .get_coalesce           = ixgbe_get_coalesce,
        .set_coalesce           = ixgbe_set_coalesce,
        .get_rx_ring_count      = ixgbe_get_rx_ring_count,
        .get_rxnfc              = ixgbe_get_rxnfc,
        .set_rxnfc              = ixgbe_set_rxnfc,
        .get_rxfh_indir_size    = ixgbe_rss_indir_size,
        .get_rxfh_key_size      = ixgbe_get_rxfh_key_size,
        .get_rxfh               = ixgbe_get_rxfh,
        .set_rxfh               = ixgbe_set_rxfh,
        .get_rxfh_fields        = ixgbe_get_rxfh_fields,
        .set_rxfh_fields        = ixgbe_set_rxfh_fields,
        .get_eee                = ixgbe_get_eee,
        .set_eee                = ixgbe_set_eee,
        .get_channels           = ixgbe_get_channels,
        .set_channels           = ixgbe_set_channels,
        .get_priv_flags         = ixgbe_get_priv_flags,
        .set_priv_flags         = ixgbe_set_priv_flags,
        .get_ts_info            = ixgbe_get_ts_info,
        .get_module_info        = ixgbe_get_module_info,
        .get_module_eeprom      = ixgbe_get_module_eeprom,
        .get_link_ksettings     = ixgbe_get_link_ksettings,
        .set_link_ksettings     = ixgbe_set_link_ksettings,
};

static const struct ethtool_ops ixgbe_ethtool_ops_e610 = {
        .supported_coalesce_params = ETHTOOL_COALESCE_USECS,
        .get_drvinfo            = ixgbe_get_drvinfo,
        .get_regs_len           = ixgbe_get_regs_len,
        .get_regs               = ixgbe_get_regs,
        .get_wol                = ixgbe_get_wol,
        .set_wol                = ixgbe_set_wol_e610,
        .nway_reset             = ixgbe_nway_reset,
        .get_link               = ethtool_op_get_link,
        .get_link_ext_stats     = ixgbe_get_link_ext_stats,
        .get_eeprom_len         = ixgbe_get_eeprom_len,
        .get_eeprom             = ixgbe_get_eeprom,
        .set_eeprom             = ixgbe_set_eeprom,
        .get_ringparam          = ixgbe_get_ringparam,
        .set_ringparam          = ixgbe_set_ringparam,
        .get_pause_stats        = ixgbe_get_pause_stats,
        .get_pauseparam         = ixgbe_get_pauseparam,
        .set_pauseparam         = ixgbe_set_pauseparam_e610,
        .get_msglevel           = ixgbe_get_msglevel,
        .set_msglevel           = ixgbe_set_msglevel,
        .self_test              = ixgbe_diag_test,
        .get_strings            = ixgbe_get_strings,
        .set_phys_id            = ixgbe_set_phys_id_e610,
        .get_sset_count         = ixgbe_get_sset_count,
        .get_ethtool_stats      = ixgbe_get_ethtool_stats,
        .get_coalesce           = ixgbe_get_coalesce,
        .set_coalesce           = ixgbe_set_coalesce,
        .get_rx_ring_count      = ixgbe_get_rx_ring_count,
        .get_rxnfc              = ixgbe_get_rxnfc,
        .set_rxnfc              = ixgbe_set_rxnfc,
        .get_rxfh_indir_size    = ixgbe_rss_indir_size,
        .get_rxfh_key_size      = ixgbe_get_rxfh_key_size,
        .get_rxfh               = ixgbe_get_rxfh,
        .set_rxfh               = ixgbe_set_rxfh,
        .get_rxfh_fields        = ixgbe_get_rxfh_fields,
        .set_rxfh_fields        = ixgbe_set_rxfh_fields,
        .get_eee                = ixgbe_get_eee,
        .set_eee                = ixgbe_set_eee,
        .get_channels           = ixgbe_get_channels,
        .set_channels           = ixgbe_set_channels,
        .get_priv_flags         = ixgbe_get_priv_flags,
        .set_priv_flags         = ixgbe_set_priv_flags,
        .get_ts_info            = ixgbe_get_ts_info,
        .get_module_info        = ixgbe_get_module_info,
        .get_module_eeprom      = ixgbe_get_module_eeprom,
        .get_link_ksettings     = ixgbe_get_link_ksettings,
        .set_link_ksettings     = ixgbe_set_link_ksettings,
};

void ixgbe_set_ethtool_ops(struct net_device *netdev)
{
        struct ixgbe_adapter *adapter = ixgbe_from_netdev(netdev);

        if (adapter->hw.mac.type == ixgbe_mac_e610)
                netdev->ethtool_ops = &ixgbe_ethtool_ops_e610;
        else
                netdev->ethtool_ops = &ixgbe_ethtool_ops;
}