// SPDX-License-Identifier: GPL-2.0
/* Copyright (c) 2018, Intel Corporation. */

/* ethtool support for ice */

#include "ice.h"
#include "ice_flow.h"
#include "ice_fltr.h"
#include "ice_lib.h"
#include "ice_dcb_lib.h"

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

#define ICE_STAT(_type, _name, _stat) { \
        .stat_string = _name, \
        .sizeof_stat = sizeof_field(_type, _stat), \
        .stat_offset = offsetof(_type, _stat) \
}

#define ICE_VSI_STAT(_name, _stat) \
                ICE_STAT(struct ice_vsi, _name, _stat)
#define ICE_PF_STAT(_name, _stat) \
                ICE_STAT(struct ice_pf, _name, _stat)

static int ice_q_stats_len(struct net_device *netdev)
{
        struct ice_netdev_priv *np = netdev_priv(netdev);

        return ((np->vsi->alloc_txq + np->vsi->alloc_rxq) *
                (sizeof(struct ice_q_stats) / sizeof(u64)));
}

#define ICE_PF_STATS_LEN        ARRAY_SIZE(ice_gstrings_pf_stats)
#define ICE_VSI_STATS_LEN       ARRAY_SIZE(ice_gstrings_vsi_stats)

#define ICE_PFC_STATS_LEN ( \
                (sizeof_field(struct ice_pf, stats.priority_xoff_rx) + \
                 sizeof_field(struct ice_pf, stats.priority_xon_rx) + \
                 sizeof_field(struct ice_pf, stats.priority_xoff_tx) + \
                 sizeof_field(struct ice_pf, stats.priority_xon_tx)) \
                 / sizeof(u64))
#define ICE_ALL_STATS_LEN(n)    (ICE_PF_STATS_LEN + ICE_PFC_STATS_LEN + \
                                 ICE_VSI_STATS_LEN + ice_q_stats_len(n))

static const struct ice_stats ice_gstrings_vsi_stats[] = {
        ICE_VSI_STAT("rx_unicast", eth_stats.rx_unicast),
        ICE_VSI_STAT("tx_unicast", eth_stats.tx_unicast),
        ICE_VSI_STAT("rx_multicast", eth_stats.rx_multicast),
        ICE_VSI_STAT("tx_multicast", eth_stats.tx_multicast),
        ICE_VSI_STAT("rx_broadcast", eth_stats.rx_broadcast),
        ICE_VSI_STAT("tx_broadcast", eth_stats.tx_broadcast),
        ICE_VSI_STAT("rx_bytes", eth_stats.rx_bytes),
        ICE_VSI_STAT("tx_bytes", eth_stats.tx_bytes),
        ICE_VSI_STAT("rx_dropped", eth_stats.rx_discards),
        ICE_VSI_STAT("rx_unknown_protocol", eth_stats.rx_unknown_protocol),
        ICE_VSI_STAT("rx_alloc_fail", rx_buf_failed),
        ICE_VSI_STAT("rx_pg_alloc_fail", rx_page_failed),
        ICE_VSI_STAT("rx_gro_dropped", rx_gro_dropped),
        ICE_VSI_STAT("tx_errors", eth_stats.tx_errors),
        ICE_VSI_STAT("tx_linearize", tx_linearize),
        ICE_VSI_STAT("tx_busy", tx_busy),
        ICE_VSI_STAT("tx_restart", tx_restart),
};

enum ice_ethtool_test_id {
        ICE_ETH_TEST_REG = 0,
        ICE_ETH_TEST_EEPROM,
        ICE_ETH_TEST_INTR,
        ICE_ETH_TEST_LOOP,
        ICE_ETH_TEST_LINK,
};

static const char ice_gstrings_test[][ETH_GSTRING_LEN] = {
        "Register test  (offline)",
        "EEPROM test    (offline)",
        "Interrupt test (offline)",
        "Loopback test  (offline)",
        "Link test   (on/offline)",
};

#define ICE_TEST_LEN (sizeof(ice_gstrings_test) / ETH_GSTRING_LEN)

/* These PF_STATs might look like duplicates of some NETDEV_STATs,
 * but they aren't. This device is capable of supporting multiple
 * VSIs/netdevs on a single PF. The NETDEV_STATs are for individual
 * netdevs whereas the PF_STATs are for the physical function that's
 * hosting these netdevs.
 *
 * The PF_STATs are appended to the netdev stats only when ethtool -S
 * is queried on the base PF netdev.
 */
static const struct ice_stats ice_gstrings_pf_stats[] = {
        ICE_PF_STAT("rx_bytes.nic", stats.eth.rx_bytes),
        ICE_PF_STAT("tx_bytes.nic", stats.eth.tx_bytes),
        ICE_PF_STAT("rx_unicast.nic", stats.eth.rx_unicast),
        ICE_PF_STAT("tx_unicast.nic", stats.eth.tx_unicast),
        ICE_PF_STAT("rx_multicast.nic", stats.eth.rx_multicast),
        ICE_PF_STAT("tx_multicast.nic", stats.eth.tx_multicast),
        ICE_PF_STAT("rx_broadcast.nic", stats.eth.rx_broadcast),
        ICE_PF_STAT("tx_broadcast.nic", stats.eth.tx_broadcast),
        ICE_PF_STAT("tx_errors.nic", stats.eth.tx_errors),
        ICE_PF_STAT("tx_timeout.nic", tx_timeout_count),
        ICE_PF_STAT("rx_size_64.nic", stats.rx_size_64),
        ICE_PF_STAT("tx_size_64.nic", stats.tx_size_64),
        ICE_PF_STAT("rx_size_127.nic", stats.rx_size_127),
        ICE_PF_STAT("tx_size_127.nic", stats.tx_size_127),
        ICE_PF_STAT("rx_size_255.nic", stats.rx_size_255),
        ICE_PF_STAT("tx_size_255.nic", stats.tx_size_255),
        ICE_PF_STAT("rx_size_511.nic", stats.rx_size_511),
        ICE_PF_STAT("tx_size_511.nic", stats.tx_size_511),
        ICE_PF_STAT("rx_size_1023.nic", stats.rx_size_1023),
        ICE_PF_STAT("tx_size_1023.nic", stats.tx_size_1023),
        ICE_PF_STAT("rx_size_1522.nic", stats.rx_size_1522),
        ICE_PF_STAT("tx_size_1522.nic", stats.tx_size_1522),
        ICE_PF_STAT("rx_size_big.nic", stats.rx_size_big),
        ICE_PF_STAT("tx_size_big.nic", stats.tx_size_big),
        ICE_PF_STAT("link_xon_rx.nic", stats.link_xon_rx),
        ICE_PF_STAT("link_xon_tx.nic", stats.link_xon_tx),
        ICE_PF_STAT("link_xoff_rx.nic", stats.link_xoff_rx),
        ICE_PF_STAT("link_xoff_tx.nic", stats.link_xoff_tx),
        ICE_PF_STAT("tx_dropped_link_down.nic", stats.tx_dropped_link_down),
        ICE_PF_STAT("rx_undersize.nic", stats.rx_undersize),
        ICE_PF_STAT("rx_fragments.nic", stats.rx_fragments),
        ICE_PF_STAT("rx_oversize.nic", stats.rx_oversize),
        ICE_PF_STAT("rx_jabber.nic", stats.rx_jabber),
        ICE_PF_STAT("rx_csum_bad.nic", hw_csum_rx_error),
        ICE_PF_STAT("rx_length_errors.nic", stats.rx_len_errors),
        ICE_PF_STAT("rx_dropped.nic", stats.eth.rx_discards),
        ICE_PF_STAT("rx_crc_errors.nic", stats.crc_errors),
        ICE_PF_STAT("illegal_bytes.nic", stats.illegal_bytes),
        ICE_PF_STAT("mac_local_faults.nic", stats.mac_local_faults),
        ICE_PF_STAT("mac_remote_faults.nic", stats.mac_remote_faults),
        ICE_PF_STAT("fdir_sb_match.nic", stats.fd_sb_match),
        ICE_PF_STAT("fdir_sb_status.nic", stats.fd_sb_status),
};

static const u32 ice_regs_dump_list[] = {
        PFGEN_STATE,
        PRTGEN_STATUS,
        QRX_CTRL(0),
        QINT_TQCTL(0),
        QINT_RQCTL(0),
        PFINT_OICR_ENA,
        QRX_ITR(0),
};

struct ice_priv_flag {
        char name[ETH_GSTRING_LEN];
        u32 bitno;                      /* bit position in pf->flags */
};

#define ICE_PRIV_FLAG(_name, _bitno) { \
        .name = _name, \
        .bitno = _bitno, \
}

static const struct ice_priv_flag ice_gstrings_priv_flags[] = {
        ICE_PRIV_FLAG("link-down-on-close", ICE_FLAG_LINK_DOWN_ON_CLOSE_ENA),
        ICE_PRIV_FLAG("fw-lldp-agent", ICE_FLAG_FW_LLDP_AGENT),
        ICE_PRIV_FLAG("vf-true-promisc-support",
                      ICE_FLAG_VF_TRUE_PROMISC_ENA),
        ICE_PRIV_FLAG("mdd-auto-reset-vf", ICE_FLAG_MDD_AUTO_RESET_VF),
        ICE_PRIV_FLAG("legacy-rx", ICE_FLAG_LEGACY_RX),
};

#define ICE_PRIV_FLAG_ARRAY_SIZE        ARRAY_SIZE(ice_gstrings_priv_flags)

static void
ice_get_drvinfo(struct net_device *netdev, struct ethtool_drvinfo *drvinfo)
{
        struct ice_netdev_priv *np = netdev_priv(netdev);
        struct ice_vsi *vsi = np->vsi;
        struct ice_pf *pf = vsi->back;
        struct ice_hw *hw = &pf->hw;
        struct ice_orom_info *orom;
        struct ice_nvm_info *nvm;

        nvm = &hw->nvm;
        orom = &nvm->orom;

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

        /* Display NVM version (from which the firmware version can be
         * determined) which contains more pertinent information.
         */
        snprintf(drvinfo->fw_version, sizeof(drvinfo->fw_version),
                 "%x.%02x 0x%x %d.%d.%d", nvm->major_ver, nvm->minor_ver,
                 nvm->eetrack, orom->major, orom->build, orom->patch);

        strscpy(drvinfo->bus_info, pci_name(pf->pdev),
                sizeof(drvinfo->bus_info));
        drvinfo->n_priv_flags = ICE_PRIV_FLAG_ARRAY_SIZE;
}

static int ice_get_regs_len(struct net_device __always_unused *netdev)
{
        return sizeof(ice_regs_dump_list);
}

static void
ice_get_regs(struct net_device *netdev, struct ethtool_regs *regs, void *p)
{
        struct ice_netdev_priv *np = netdev_priv(netdev);
        struct ice_pf *pf = np->vsi->back;
        struct ice_hw *hw = &pf->hw;
        u32 *regs_buf = (u32 *)p;
        unsigned int i;

        regs->version = 1;

        for (i = 0; i < ARRAY_SIZE(ice_regs_dump_list); ++i)
                regs_buf[i] = rd32(hw, ice_regs_dump_list[i]);
}

static u32 ice_get_msglevel(struct net_device *netdev)
{
        struct ice_netdev_priv *np = netdev_priv(netdev);
        struct ice_pf *pf = np->vsi->back;

#ifndef CONFIG_DYNAMIC_DEBUG
        if (pf->hw.debug_mask)
                netdev_info(netdev, "hw debug_mask: 0x%llX\n",
                            pf->hw.debug_mask);
#endif /* !CONFIG_DYNAMIC_DEBUG */

        return pf->msg_enable;
}

static void ice_set_msglevel(struct net_device *netdev, u32 data)
{
        struct ice_netdev_priv *np = netdev_priv(netdev);
        struct ice_pf *pf = np->vsi->back;

#ifndef CONFIG_DYNAMIC_DEBUG
        if (ICE_DBG_USER & data)
                pf->hw.debug_mask = data;
        else
                pf->msg_enable = data;
#else
        pf->msg_enable = data;
#endif /* !CONFIG_DYNAMIC_DEBUG */
}

static int ice_get_eeprom_len(struct net_device *netdev)
{
        struct ice_netdev_priv *np = netdev_priv(netdev);
        struct ice_pf *pf = np->vsi->back;

        return (int)pf->hw.nvm.flash_size;
}

static int
ice_get_eeprom(struct net_device *netdev, struct ethtool_eeprom *eeprom,
               u8 *bytes)
{
        struct ice_netdev_priv *np = netdev_priv(netdev);
        struct ice_vsi *vsi = np->vsi;
        struct ice_pf *pf = vsi->back;
        struct ice_hw *hw = &pf->hw;
        enum ice_status status;
        struct device *dev;
        int ret = 0;
        u8 *buf;

        dev = ice_pf_to_dev(pf);

        eeprom->magic = hw->vendor_id | (hw->device_id << 16);
        netdev_dbg(netdev, "GEEPROM cmd 0x%08x, offset 0x%08x, len 0x%08x\n",
                   eeprom->cmd, eeprom->offset, eeprom->len);

        buf = kzalloc(eeprom->len, GFP_KERNEL);
        if (!buf)
                return -ENOMEM;

        status = ice_acquire_nvm(hw, ICE_RES_READ);
        if (status) {
                dev_err(dev, "ice_acquire_nvm failed, err %s aq_err %s\n",
                        ice_stat_str(status),
                        ice_aq_str(hw->adminq.sq_last_status));
                ret = -EIO;
                goto out;
        }

        status = ice_read_flat_nvm(hw, eeprom->offset, &eeprom->len, buf,
                                   false);
        if (status) {
                dev_err(dev, "ice_read_flat_nvm failed, err %s aq_err %s\n",
                        ice_stat_str(status),
                        ice_aq_str(hw->adminq.sq_last_status));
                ret = -EIO;
                goto release;
        }

        memcpy(bytes, buf, eeprom->len);
release:
        ice_release_nvm(hw);
out:
        kfree(buf);
        return ret;
}

/**
 * ice_active_vfs - check if there are any active VFs
 * @pf: board private structure
 *
 * Returns true if an active VF is found, otherwise returns false
 */
static bool ice_active_vfs(struct ice_pf *pf)
{
        unsigned int i;

        ice_for_each_vf(pf, i) {
                struct ice_vf *vf = &pf->vf[i];

                if (test_bit(ICE_VF_STATE_ACTIVE, vf->vf_states))
                        return true;
        }

        return false;
}

/**
 * ice_link_test - perform a link test on a given net_device
 * @netdev: network interface device structure
 *
 * This function performs one of the self-tests required by ethtool.
 * Returns 0 on success, non-zero on failure.
 */
static u64 ice_link_test(struct net_device *netdev)
{
        struct ice_netdev_priv *np = netdev_priv(netdev);
        enum ice_status status;
        bool link_up = false;

        netdev_info(netdev, "link test\n");
        status = ice_get_link_status(np->vsi->port_info, &link_up);
        if (status) {
                netdev_err(netdev, "link query error, status = %s\n",
                           ice_stat_str(status));
                return 1;
        }

        if (!link_up)
                return 2;

        return 0;
}

/**
 * ice_eeprom_test - perform an EEPROM test on a given net_device
 * @netdev: network interface device structure
 *
 * This function performs one of the self-tests required by ethtool.
 * Returns 0 on success, non-zero on failure.
 */
static u64 ice_eeprom_test(struct net_device *netdev)
{
        struct ice_netdev_priv *np = netdev_priv(netdev);
        struct ice_pf *pf = np->vsi->back;

        netdev_info(netdev, "EEPROM test\n");
        return !!(ice_nvm_validate_checksum(&pf->hw));
}

/**
 * ice_reg_pattern_test
 * @hw: pointer to the HW struct
 * @reg: reg to be tested
 * @mask: bits to be touched
 */
static int ice_reg_pattern_test(struct ice_hw *hw, u32 reg, u32 mask)
{
        struct ice_pf *pf = (struct ice_pf *)hw->back;
        struct device *dev = ice_pf_to_dev(pf);
        static const u32 patterns[] = {
                0x5A5A5A5A, 0xA5A5A5A5,
                0x00000000, 0xFFFFFFFF
        };
        u32 val, orig_val;
        unsigned int i;

        orig_val = rd32(hw, reg);
        for (i = 0; i < ARRAY_SIZE(patterns); ++i) {
                u32 pattern = patterns[i] & mask;

                wr32(hw, reg, pattern);
                val = rd32(hw, reg);
                if (val == pattern)
                        continue;
                dev_err(dev, "%s: reg pattern test failed - reg 0x%08x pat 0x%08x val 0x%08x\n"
                        , __func__, reg, pattern, val);
                return 1;
        }

        wr32(hw, reg, orig_val);
        val = rd32(hw, reg);
        if (val != orig_val) {
                dev_err(dev, "%s: reg restore test failed - reg 0x%08x orig 0x%08x val 0x%08x\n"
                        , __func__, reg, orig_val, val);
                return 1;
        }

        return 0;
}

/**
 * ice_reg_test - perform a register test on a given net_device
 * @netdev: network interface device structure
 *
 * This function performs one of the self-tests required by ethtool.
 * Returns 0 on success, non-zero on failure.
 */
static u64 ice_reg_test(struct net_device *netdev)
{
        struct ice_netdev_priv *np = netdev_priv(netdev);
        struct ice_hw *hw = np->vsi->port_info->hw;
        u32 int_elements = hw->func_caps.common_cap.num_msix_vectors ?
                hw->func_caps.common_cap.num_msix_vectors - 1 : 1;
        struct ice_diag_reg_test_info {
                u32 address;
                u32 mask;
                u32 elem_num;
                u32 elem_size;
        } ice_reg_list[] = {
                {GLINT_ITR(0, 0), 0x00000fff, int_elements,
                        GLINT_ITR(0, 1) - GLINT_ITR(0, 0)},
                {GLINT_ITR(1, 0), 0x00000fff, int_elements,
                        GLINT_ITR(1, 1) - GLINT_ITR(1, 0)},
                {GLINT_ITR(0, 0), 0x00000fff, int_elements,
                        GLINT_ITR(2, 1) - GLINT_ITR(2, 0)},
                {GLINT_CTL, 0xffff0001, 1, 0}
        };
        unsigned int i;

        netdev_dbg(netdev, "Register test\n");
        for (i = 0; i < ARRAY_SIZE(ice_reg_list); ++i) {
                u32 j;

                for (j = 0; j < ice_reg_list[i].elem_num; ++j) {
                        u32 mask = ice_reg_list[i].mask;
                        u32 reg = ice_reg_list[i].address +
                                (j * ice_reg_list[i].elem_size);

                        /* bail on failure (non-zero return) */
                        if (ice_reg_pattern_test(hw, reg, mask))
                                return 1;
                }
        }

        return 0;
}

/**
 * ice_lbtest_prepare_rings - configure Tx/Rx test rings
 * @vsi: pointer to the VSI structure
 *
 * Function configures rings of a VSI for loopback test without
 * enabling interrupts or informing the kernel about new queues.
 *
 * Returns 0 on success, negative on failure.
 */
static int ice_lbtest_prepare_rings(struct ice_vsi *vsi)
{
        int status;

        status = ice_vsi_setup_tx_rings(vsi);
        if (status)
                goto err_setup_tx_ring;

        status = ice_vsi_setup_rx_rings(vsi);
        if (status)
                goto err_setup_rx_ring;

        status = ice_vsi_cfg(vsi);
        if (status)
                goto err_setup_rx_ring;

        status = ice_vsi_start_all_rx_rings(vsi);
        if (status)
                goto err_start_rx_ring;

        return status;

err_start_rx_ring:
        ice_vsi_free_rx_rings(vsi);
err_setup_rx_ring:
        ice_vsi_stop_lan_tx_rings(vsi, ICE_NO_RESET, 0);
err_setup_tx_ring:
        ice_vsi_free_tx_rings(vsi);

        return status;
}

/**
 * ice_lbtest_disable_rings - disable Tx/Rx test rings after loopback test
 * @vsi: pointer to the VSI structure
 *
 * Function stops and frees VSI rings after a loopback test.
 * Returns 0 on success, negative on failure.
 */
static int ice_lbtest_disable_rings(struct ice_vsi *vsi)
{
        int status;

        status = ice_vsi_stop_lan_tx_rings(vsi, ICE_NO_RESET, 0);
        if (status)
                netdev_err(vsi->netdev, "Failed to stop Tx rings, VSI %d error %d\n",
                           vsi->vsi_num, status);

        status = ice_vsi_stop_all_rx_rings(vsi);
        if (status)
                netdev_err(vsi->netdev, "Failed to stop Rx rings, VSI %d error %d\n",
                           vsi->vsi_num, status);

        ice_vsi_free_tx_rings(vsi);
        ice_vsi_free_rx_rings(vsi);

        return status;
}

/**
 * ice_lbtest_create_frame - create test packet
 * @pf: pointer to the PF structure
 * @ret_data: allocated frame buffer
 * @size: size of the packet data
 *
 * Function allocates a frame with a test pattern on specific offsets.
 * Returns 0 on success, non-zero on failure.
 */
static int ice_lbtest_create_frame(struct ice_pf *pf, u8 **ret_data, u16 size)
{
        u8 *data;

        if (!pf)
                return -EINVAL;

        data = devm_kzalloc(ice_pf_to_dev(pf), size, GFP_KERNEL);
        if (!data)
                return -ENOMEM;

        /* Since the ethernet test frame should always be at least
         * 64 bytes long, fill some octets in the payload with test data.
         */
        memset(data, 0xFF, size);
        data[32] = 0xDE;
        data[42] = 0xAD;
        data[44] = 0xBE;
        data[46] = 0xEF;

        *ret_data = data;

        return 0;
}

/**
 * ice_lbtest_check_frame - verify received loopback frame
 * @frame: pointer to the raw packet data
 *
 * Function verifies received test frame with a pattern.
 * Returns true if frame matches the pattern, false otherwise.
 */
static bool ice_lbtest_check_frame(u8 *frame)
{
        /* Validate bytes of a frame under offsets chosen earlier */
        if (frame[32] == 0xDE &&
            frame[42] == 0xAD &&
            frame[44] == 0xBE &&
            frame[46] == 0xEF &&
            frame[48] == 0xFF)
                return true;

        return false;
}

/**
 * ice_diag_send - send test frames to the test ring
 * @tx_ring: pointer to the transmit ring
 * @data: pointer to the raw packet data
 * @size: size of the packet to send
 *
 * Function sends loopback packets on a test Tx ring.
 */
static int ice_diag_send(struct ice_ring *tx_ring, u8 *data, u16 size)
{
        struct ice_tx_desc *tx_desc;
        struct ice_tx_buf *tx_buf;
        dma_addr_t dma;
        u64 td_cmd;

        tx_desc = ICE_TX_DESC(tx_ring, tx_ring->next_to_use);
        tx_buf = &tx_ring->tx_buf[tx_ring->next_to_use];

        dma = dma_map_single(tx_ring->dev, data, size, DMA_TO_DEVICE);
        if (dma_mapping_error(tx_ring->dev, dma))
                return -EINVAL;

        tx_desc->buf_addr = cpu_to_le64(dma);

        /* These flags are required for a descriptor to be pushed out */
        td_cmd = (u64)(ICE_TX_DESC_CMD_EOP | ICE_TX_DESC_CMD_RS);
        tx_desc->cmd_type_offset_bsz =
                cpu_to_le64(ICE_TX_DESC_DTYPE_DATA |
                            (td_cmd << ICE_TXD_QW1_CMD_S) |
                            ((u64)0 << ICE_TXD_QW1_OFFSET_S) |
                            ((u64)size << ICE_TXD_QW1_TX_BUF_SZ_S) |
                            ((u64)0 << ICE_TXD_QW1_L2TAG1_S));

        tx_buf->next_to_watch = tx_desc;

        /* Force memory write to complete before letting h/w know
         * there are new descriptors to fetch.
         */
        wmb();

        tx_ring->next_to_use++;
        if (tx_ring->next_to_use >= tx_ring->count)
                tx_ring->next_to_use = 0;

        writel_relaxed(tx_ring->next_to_use, tx_ring->tail);

        /* Wait until the packets get transmitted to the receive queue. */
        usleep_range(1000, 2000);
        dma_unmap_single(tx_ring->dev, dma, size, DMA_TO_DEVICE);

        return 0;
}

#define ICE_LB_FRAME_SIZE 64
/**
 * ice_lbtest_receive_frames - receive and verify test frames
 * @rx_ring: pointer to the receive ring
 *
 * Function receives loopback packets and verify their correctness.
 * Returns number of received valid frames.
 */
static int ice_lbtest_receive_frames(struct ice_ring *rx_ring)
{
        struct ice_rx_buf *rx_buf;
        int valid_frames, i;
        u8 *received_buf;

        valid_frames = 0;

        for (i = 0; i < rx_ring->count; i++) {
                union ice_32b_rx_flex_desc *rx_desc;

                rx_desc = ICE_RX_DESC(rx_ring, i);

                if (!(rx_desc->wb.status_error0 &
                    cpu_to_le16(ICE_TX_DESC_CMD_EOP | ICE_TX_DESC_CMD_RS)))
                        continue;

                rx_buf = &rx_ring->rx_buf[i];
                received_buf = page_address(rx_buf->page) + rx_buf->page_offset;

                if (ice_lbtest_check_frame(received_buf))
                        valid_frames++;
        }

        return valid_frames;
}

/**
 * ice_loopback_test - perform a loopback test on a given net_device
 * @netdev: network interface device structure
 *
 * This function performs one of the self-tests required by ethtool.
 * Returns 0 on success, non-zero on failure.
 */
static u64 ice_loopback_test(struct net_device *netdev)
{
        struct ice_netdev_priv *np = netdev_priv(netdev);
        struct ice_vsi *orig_vsi = np->vsi, *test_vsi;
        struct ice_pf *pf = orig_vsi->back;
        struct ice_ring *tx_ring, *rx_ring;
        u8 broadcast[ETH_ALEN], ret = 0;
        int num_frames, valid_frames;
        struct device *dev;
        u8 *tx_frame;
        int i;

        dev = ice_pf_to_dev(pf);
        netdev_info(netdev, "loopback test\n");

        test_vsi = ice_lb_vsi_setup(pf, pf->hw.port_info);
        if (!test_vsi) {
                netdev_err(netdev, "Failed to create a VSI for the loopback test\n");
                return 1;
        }

        test_vsi->netdev = netdev;
        tx_ring = test_vsi->tx_rings[0];
        rx_ring = test_vsi->rx_rings[0];

        if (ice_lbtest_prepare_rings(test_vsi)) {
                ret = 2;
                goto lbtest_vsi_close;
        }

        if (ice_alloc_rx_bufs(rx_ring, rx_ring->count)) {
                ret = 3;
                goto lbtest_rings_dis;
        }

        /* Enable MAC loopback in firmware */
        if (ice_aq_set_mac_loopback(&pf->hw, true, NULL)) {
                ret = 4;
                goto lbtest_mac_dis;
        }

        /* Test VSI needs to receive broadcast packets */
        eth_broadcast_addr(broadcast);
        if (ice_fltr_add_mac(test_vsi, broadcast, ICE_FWD_TO_VSI)) {
                ret = 5;
                goto lbtest_mac_dis;
        }

        if (ice_lbtest_create_frame(pf, &tx_frame, ICE_LB_FRAME_SIZE)) {
                ret = 7;
                goto remove_mac_filters;
        }

        num_frames = min_t(int, tx_ring->count, 32);
        for (i = 0; i < num_frames; i++) {
                if (ice_diag_send(tx_ring, tx_frame, ICE_LB_FRAME_SIZE)) {
                        ret = 8;
                        goto lbtest_free_frame;
                }
        }

        valid_frames = ice_lbtest_receive_frames(rx_ring);
        if (!valid_frames)
                ret = 9;
        else if (valid_frames != num_frames)
                ret = 10;

lbtest_free_frame:
        devm_kfree(dev, tx_frame);
remove_mac_filters:
        if (ice_fltr_remove_mac(test_vsi, broadcast, ICE_FWD_TO_VSI))
                netdev_err(netdev, "Could not remove MAC filter for the test VSI\n");
lbtest_mac_dis:
        /* Disable MAC loopback after the test is completed. */
        if (ice_aq_set_mac_loopback(&pf->hw, false, NULL))
                netdev_err(netdev, "Could not disable MAC loopback\n");
lbtest_rings_dis:
        if (ice_lbtest_disable_rings(test_vsi))
                netdev_err(netdev, "Could not disable test rings\n");
lbtest_vsi_close:
        test_vsi->netdev = NULL;
        if (ice_vsi_release(test_vsi))
                netdev_err(netdev, "Failed to remove the test VSI\n");

        return ret;
}

/**
 * ice_intr_test - perform an interrupt test on a given net_device
 * @netdev: network interface device structure
 *
 * This function performs one of the self-tests required by ethtool.
 * Returns 0 on success, non-zero on failure.
 */
static u64 ice_intr_test(struct net_device *netdev)
{
        struct ice_netdev_priv *np = netdev_priv(netdev);
        struct ice_pf *pf = np->vsi->back;
        u16 swic_old = pf->sw_int_count;

        netdev_info(netdev, "interrupt test\n");

        wr32(&pf->hw, GLINT_DYN_CTL(pf->oicr_idx),
             GLINT_DYN_CTL_SW_ITR_INDX_M |
             GLINT_DYN_CTL_INTENA_MSK_M |
             GLINT_DYN_CTL_SWINT_TRIG_M);

        usleep_range(1000, 2000);
        return (swic_old == pf->sw_int_count);
}

/**
 * ice_self_test - handler function for performing a self-test by ethtool
 * @netdev: network interface device structure
 * @eth_test: ethtool_test structure
 * @data: required by ethtool.self_test
 *
 * This function is called after invoking 'ethtool -t devname' command where
 * devname is the name of the network device on which ethtool should operate.
 * It performs a set of self-tests to check if a device works properly.
 */
static void
ice_self_test(struct net_device *netdev, struct ethtool_test *eth_test,
              u64 *data)
{
        struct ice_netdev_priv *np = netdev_priv(netdev);
        bool if_running = netif_running(netdev);
        struct ice_pf *pf = np->vsi->back;
        struct device *dev;

        dev = ice_pf_to_dev(pf);

        if (eth_test->flags == ETH_TEST_FL_OFFLINE) {
                netdev_info(netdev, "offline testing starting\n");

                set_bit(__ICE_TESTING, pf->state);

                if (ice_active_vfs(pf)) {
                        dev_warn(dev, "Please take active VFs and Netqueues offline and restart the adapter before running NIC diagnostics\n");
                        data[ICE_ETH_TEST_REG] = 1;
                        data[ICE_ETH_TEST_EEPROM] = 1;
                        data[ICE_ETH_TEST_INTR] = 1;
                        data[ICE_ETH_TEST_LOOP] = 1;
                        data[ICE_ETH_TEST_LINK] = 1;
                        eth_test->flags |= ETH_TEST_FL_FAILED;
                        clear_bit(__ICE_TESTING, pf->state);
                        goto skip_ol_tests;
                }
                /* If the device is online then take it offline */
                if (if_running)
                        /* indicate we're in test mode */
                        ice_stop(netdev);

                data[ICE_ETH_TEST_LINK] = ice_link_test(netdev);
                data[ICE_ETH_TEST_EEPROM] = ice_eeprom_test(netdev);
                data[ICE_ETH_TEST_INTR] = ice_intr_test(netdev);
                data[ICE_ETH_TEST_LOOP] = ice_loopback_test(netdev);
                data[ICE_ETH_TEST_REG] = ice_reg_test(netdev);

                if (data[ICE_ETH_TEST_LINK] ||
                    data[ICE_ETH_TEST_EEPROM] ||
                    data[ICE_ETH_TEST_LOOP] ||
                    data[ICE_ETH_TEST_INTR] ||
                    data[ICE_ETH_TEST_REG])
                        eth_test->flags |= ETH_TEST_FL_FAILED;

                clear_bit(__ICE_TESTING, pf->state);

                if (if_running) {
                        int status = ice_open(netdev);

                        if (status) {
                                dev_err(dev, "Could not open device %s, err %d\n",
                                        pf->int_name, status);
                        }
                }
        } else {
                /* Online tests */
                netdev_info(netdev, "online testing starting\n");

                data[ICE_ETH_TEST_LINK] = ice_link_test(netdev);
                if (data[ICE_ETH_TEST_LINK])
                        eth_test->flags |= ETH_TEST_FL_FAILED;

                /* Offline only tests, not run in online; pass by default */
                data[ICE_ETH_TEST_REG] = 0;
                data[ICE_ETH_TEST_EEPROM] = 0;
                data[ICE_ETH_TEST_INTR] = 0;
                data[ICE_ETH_TEST_LOOP] = 0;
        }

skip_ol_tests:
        netdev_info(netdev, "testing finished\n");
}

static void ice_get_strings(struct net_device *netdev, u32 stringset, u8 *data)
{
        struct ice_netdev_priv *np = netdev_priv(netdev);
        struct ice_vsi *vsi = np->vsi;
        char *p = (char *)data;
        unsigned int i;

        switch (stringset) {
        case ETH_SS_STATS:
                for (i = 0; i < ICE_VSI_STATS_LEN; i++) {
                        snprintf(p, ETH_GSTRING_LEN, "%s",
                                 ice_gstrings_vsi_stats[i].stat_string);
                        p += ETH_GSTRING_LEN;
                }

                ice_for_each_alloc_txq(vsi, i) {
                        snprintf(p, ETH_GSTRING_LEN,
                                 "tx_queue_%u_packets", i);
                        p += ETH_GSTRING_LEN;
                        snprintf(p, ETH_GSTRING_LEN, "tx_queue_%u_bytes", i);
                        p += ETH_GSTRING_LEN;
                }

                ice_for_each_alloc_rxq(vsi, i) {
                        snprintf(p, ETH_GSTRING_LEN,
                                 "rx_queue_%u_packets", i);
                        p += ETH_GSTRING_LEN;
                        snprintf(p, ETH_GSTRING_LEN, "rx_queue_%u_bytes", i);
                        p += ETH_GSTRING_LEN;
                }

                if (vsi->type != ICE_VSI_PF)
                        return;

                for (i = 0; i < ICE_PF_STATS_LEN; i++) {
                        snprintf(p, ETH_GSTRING_LEN, "%s",
                                 ice_gstrings_pf_stats[i].stat_string);
                        p += ETH_GSTRING_LEN;
                }

                for (i = 0; i < ICE_MAX_USER_PRIORITY; i++) {
                        snprintf(p, ETH_GSTRING_LEN,
                                 "tx_priority_%u_xon.nic", i);
                        p += ETH_GSTRING_LEN;
                        snprintf(p, ETH_GSTRING_LEN,
                                 "tx_priority_%u_xoff.nic", i);
                        p += ETH_GSTRING_LEN;
                }
                for (i = 0; i < ICE_MAX_USER_PRIORITY; i++) {
                        snprintf(p, ETH_GSTRING_LEN,
                                 "rx_priority_%u_xon.nic", i);
                        p += ETH_GSTRING_LEN;
                        snprintf(p, ETH_GSTRING_LEN,
                                 "rx_priority_%u_xoff.nic", i);
                        p += ETH_GSTRING_LEN;
                }
                break;
        case ETH_SS_TEST:
                memcpy(data, ice_gstrings_test, ICE_TEST_LEN * ETH_GSTRING_LEN);
                break;
        case ETH_SS_PRIV_FLAGS:
                for (i = 0; i < ICE_PRIV_FLAG_ARRAY_SIZE; i++) {
                        snprintf(p, ETH_GSTRING_LEN, "%s",
                                 ice_gstrings_priv_flags[i].name);
                        p += ETH_GSTRING_LEN;
                }
                break;
        default:
                break;
        }
}

static int
ice_set_phys_id(struct net_device *netdev, enum ethtool_phys_id_state state)
{
        struct ice_netdev_priv *np = netdev_priv(netdev);
        bool led_active;

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

        if (ice_aq_set_port_id_led(np->vsi->port_info, !led_active, NULL))
                return -EIO;

        return 0;
}

/**
 * ice_set_fec_cfg - Set link FEC options
 * @netdev: network interface device structure
 * @req_fec: FEC mode to configure
 */
static int ice_set_fec_cfg(struct net_device *netdev, enum ice_fec_mode req_fec)
{
        struct ice_netdev_priv *np = netdev_priv(netdev);
        struct ice_aqc_set_phy_cfg_data config = { 0 };
        struct ice_vsi *vsi = np->vsi;
        struct ice_port_info *pi;

        pi = vsi->port_info;
        if (!pi)
                return -EOPNOTSUPP;

        /* Changing the FEC parameters is not supported if not the PF VSI */
        if (vsi->type != ICE_VSI_PF) {
                netdev_info(netdev, "Changing FEC parameters only supported for PF VSI\n");
                return -EOPNOTSUPP;
        }

        /* Proceed only if requesting different FEC mode */
        if (pi->phy.curr_user_fec_req == req_fec)
                return 0;

        /* Copy the current user PHY configuration. The current user PHY
         * configuration is initialized during probe from PHY capabilities
         * software mode, and updated on set PHY configuration.
         */
        memcpy(&config, &pi->phy.curr_user_phy_cfg, sizeof(config));

        ice_cfg_phy_fec(pi, &config, req_fec);
        config.caps |= ICE_AQ_PHY_ENA_AUTO_LINK_UPDT;

        if (ice_aq_set_phy_cfg(pi->hw, pi, &config, NULL))
                return -EAGAIN;

        /* Save requested FEC config */
        pi->phy.curr_user_fec_req = req_fec;

        return 0;
}

/**
 * ice_set_fecparam - Set FEC link options
 * @netdev: network interface device structure
 * @fecparam: Ethtool structure to retrieve FEC parameters
 */
static int
ice_set_fecparam(struct net_device *netdev, struct ethtool_fecparam *fecparam)
{
        struct ice_netdev_priv *np = netdev_priv(netdev);
        struct ice_vsi *vsi = np->vsi;
        enum ice_fec_mode fec;

        switch (fecparam->fec) {
        case ETHTOOL_FEC_AUTO:
                fec = ICE_FEC_AUTO;
                break;
        case ETHTOOL_FEC_RS:
                fec = ICE_FEC_RS;
                break;
        case ETHTOOL_FEC_BASER:
                fec = ICE_FEC_BASER;
                break;
        case ETHTOOL_FEC_OFF:
        case ETHTOOL_FEC_NONE:
                fec = ICE_FEC_NONE;
                break;
        default:
                dev_warn(ice_pf_to_dev(vsi->back), "Unsupported FEC mode: %d\n",
                         fecparam->fec);
                return -EINVAL;
        }

        return ice_set_fec_cfg(netdev, fec);
}

/**
 * ice_get_fecparam - Get link FEC options
 * @netdev: network interface device structure
 * @fecparam: Ethtool structure to retrieve FEC parameters
 */
static int
ice_get_fecparam(struct net_device *netdev, struct ethtool_fecparam *fecparam)
{
        struct ice_netdev_priv *np = netdev_priv(netdev);
        struct ice_aqc_get_phy_caps_data *caps;
        struct ice_link_status *link_info;
        struct ice_vsi *vsi = np->vsi;
        struct ice_port_info *pi;
        enum ice_status status;
        int err = 0;

        pi = vsi->port_info;

        if (!pi)
                return -EOPNOTSUPP;
        link_info = &pi->phy.link_info;

        /* Set FEC mode based on negotiated link info */
        switch (link_info->fec_info) {
        case ICE_AQ_LINK_25G_KR_FEC_EN:
                fecparam->active_fec = ETHTOOL_FEC_BASER;
                break;
        case ICE_AQ_LINK_25G_RS_528_FEC_EN:
        case ICE_AQ_LINK_25G_RS_544_FEC_EN:
                fecparam->active_fec = ETHTOOL_FEC_RS;
                break;
        default:
                fecparam->active_fec = ETHTOOL_FEC_OFF;
                break;
        }

        caps = kzalloc(sizeof(*caps), GFP_KERNEL);
        if (!caps)
                return -ENOMEM;

        status = ice_aq_get_phy_caps(pi, false, ICE_AQC_REPORT_TOPO_CAP,
                                     caps, NULL);
        if (status) {
                err = -EAGAIN;
                goto done;
        }

        /* Set supported/configured FEC modes based on PHY capability */
        if (caps->caps & ICE_AQC_PHY_EN_AUTO_FEC)
                fecparam->fec |= ETHTOOL_FEC_AUTO;
        if (caps->link_fec_options & ICE_AQC_PHY_FEC_10G_KR_40G_KR4_EN ||
            caps->link_fec_options & ICE_AQC_PHY_FEC_10G_KR_40G_KR4_REQ ||
            caps->link_fec_options & ICE_AQC_PHY_FEC_25G_KR_CLAUSE74_EN ||
            caps->link_fec_options & ICE_AQC_PHY_FEC_25G_KR_REQ)
                fecparam->fec |= ETHTOOL_FEC_BASER;
        if (caps->link_fec_options & ICE_AQC_PHY_FEC_25G_RS_528_REQ ||
            caps->link_fec_options & ICE_AQC_PHY_FEC_25G_RS_544_REQ ||
            caps->link_fec_options & ICE_AQC_PHY_FEC_25G_RS_CLAUSE91_EN)
                fecparam->fec |= ETHTOOL_FEC_RS;
        if (caps->link_fec_options == 0)
                fecparam->fec |= ETHTOOL_FEC_OFF;

done:
        kfree(caps);
        return err;
}

/**
 * ice_nway_reset - restart autonegotiation
 * @netdev: network interface device structure
 */
static int ice_nway_reset(struct net_device *netdev)
{
        struct ice_netdev_priv *np = netdev_priv(netdev);
        struct ice_vsi *vsi = np->vsi;
        struct ice_port_info *pi;
        enum ice_status status;

        pi = vsi->port_info;
        /* If VSI state is up, then restart autoneg with link up */
        if (!test_bit(__ICE_DOWN, vsi->back->state))
                status = ice_aq_set_link_restart_an(pi, true, NULL);
        else
                status = ice_aq_set_link_restart_an(pi, false, NULL);

        if (status) {
                netdev_info(netdev, "link restart failed, err %s aq_err %s\n",
                            ice_stat_str(status),
                            ice_aq_str(pi->hw->adminq.sq_last_status));
                return -EIO;
        }

        return 0;
}

/**
 * ice_get_priv_flags - report device private flags
 * @netdev: network interface device structure
 *
 * The get string set count and the string set should be matched for each
 * flag returned.  Add new strings for each flag to the ice_gstrings_priv_flags
 * array.
 *
 * Returns a u32 bitmap of flags.
 */
static u32 ice_get_priv_flags(struct net_device *netdev)
{
        struct ice_netdev_priv *np = netdev_priv(netdev);
        struct ice_vsi *vsi = np->vsi;
        struct ice_pf *pf = vsi->back;
        u32 i, ret_flags = 0;

        for (i = 0; i < ICE_PRIV_FLAG_ARRAY_SIZE; i++) {
                const struct ice_priv_flag *priv_flag;

                priv_flag = &ice_gstrings_priv_flags[i];

                if (test_bit(priv_flag->bitno, pf->flags))
                        ret_flags |= BIT(i);
        }

        return ret_flags;
}

/**
 * ice_set_priv_flags - set private flags
 * @netdev: network interface device structure
 * @flags: bit flags to be set
 */
static int ice_set_priv_flags(struct net_device *netdev, u32 flags)
{
        struct ice_netdev_priv *np = netdev_priv(netdev);
        DECLARE_BITMAP(change_flags, ICE_PF_FLAGS_NBITS);
        DECLARE_BITMAP(orig_flags, ICE_PF_FLAGS_NBITS);
        struct ice_vsi *vsi = np->vsi;
        struct ice_pf *pf = vsi->back;
        struct device *dev;
        int ret = 0;
        u32 i;

        if (flags > BIT(ICE_PRIV_FLAG_ARRAY_SIZE))
                return -EINVAL;

        dev = ice_pf_to_dev(pf);
        set_bit(ICE_FLAG_ETHTOOL_CTXT, pf->flags);

        bitmap_copy(orig_flags, pf->flags, ICE_PF_FLAGS_NBITS);
        for (i = 0; i < ICE_PRIV_FLAG_ARRAY_SIZE; i++) {
                const struct ice_priv_flag *priv_flag;

                priv_flag = &ice_gstrings_priv_flags[i];

                if (flags & BIT(i))
                        set_bit(priv_flag->bitno, pf->flags);
                else
                        clear_bit(priv_flag->bitno, pf->flags);
        }

        bitmap_xor(change_flags, pf->flags, orig_flags, ICE_PF_FLAGS_NBITS);

        /* Do not allow change to link-down-on-close when Total Port Shutdown
         * is enabled.
         */
        if (test_bit(ICE_FLAG_LINK_DOWN_ON_CLOSE_ENA, change_flags) &&
            test_bit(ICE_FLAG_TOTAL_PORT_SHUTDOWN_ENA, pf->flags)) {
                dev_err(dev, "Setting link-down-on-close not supported on this port\n");
                set_bit(ICE_FLAG_LINK_DOWN_ON_CLOSE_ENA, pf->flags);
                ret = -EINVAL;
                goto ethtool_exit;
        }

        if (test_bit(ICE_FLAG_FW_LLDP_AGENT, change_flags)) {
                if (!test_bit(ICE_FLAG_FW_LLDP_AGENT, pf->flags)) {
                        enum ice_status status;

                        /* Disable FW LLDP engine */
                        status = ice_cfg_lldp_mib_change(&pf->hw, false);

                        /* If unregistering for LLDP events fails, this is
                         * not an error state, as there shouldn't be any
                         * events to respond to.
                         */
                        if (status)
                                dev_info(dev, "Failed to unreg for LLDP events\n");

                        /* The AQ call to stop the FW LLDP agent will generate
                         * an error if the agent is already stopped.
                         */
                        status = ice_aq_stop_lldp(&pf->hw, true, true, NULL);
                        if (status)
                                dev_warn(dev, "Fail to stop LLDP agent\n");
                        /* Use case for having the FW LLDP agent stopped
                         * will likely not need DCB, so failure to init is
                         * not a concern of ethtool
                         */
                        status = ice_init_pf_dcb(pf, true);
                        if (status)
                                dev_warn(dev, "Fail to init DCB\n");
                } else {
                        enum ice_status status;
                        bool dcbx_agent_status;

                        /* AQ command to start FW LLDP agent will return an
                         * error if the agent is already started
                         */
                        status = ice_aq_start_lldp(&pf->hw, true, NULL);
                        if (status)
                                dev_warn(dev, "Fail to start LLDP Agent\n");

                        /* AQ command to start FW DCBX agent will fail if
                         * the agent is already started
                         */
                        status = ice_aq_start_stop_dcbx(&pf->hw, true,
                                                        &dcbx_agent_status,
                                                        NULL);
                        if (status)
                                dev_dbg(dev, "Failed to start FW DCBX\n");

                        dev_info(dev, "FW DCBX agent is %s\n",
                                 dcbx_agent_status ? "ACTIVE" : "DISABLED");

                        /* Failure to configure MIB change or init DCB is not
                         * relevant to ethtool.  Print notification that
                         * registration/init failed but do not return error
                         * state to ethtool
                         */
                        status = ice_init_pf_dcb(pf, true);
                        if (status)
                                dev_dbg(dev, "Fail to init DCB\n");

                        /* Remove rule to direct LLDP packets to default VSI.
                         * The FW LLDP engine will now be consuming them.
                         */
                        ice_cfg_sw_lldp(vsi, false, false);

                        /* Register for MIB change events */
                        status = ice_cfg_lldp_mib_change(&pf->hw, true);
                        if (status)
                                dev_dbg(dev, "Fail to enable MIB change events\n");

                        ice_nway_reset(netdev);
                }
        }
        if (test_bit(ICE_FLAG_LEGACY_RX, change_flags)) {
                /* down and up VSI so that changes of Rx cfg are reflected. */
                ice_down(vsi);
                ice_up(vsi);
        }
        /* don't allow modification of this flag when a single VF is in
         * promiscuous mode because it's not supported
         */
        if (test_bit(ICE_FLAG_VF_TRUE_PROMISC_ENA, change_flags) &&
            ice_is_any_vf_in_promisc(pf)) {
                dev_err(dev, "Changing vf-true-promisc-support flag while VF(s) are in promiscuous mode not supported\n");
                /* toggle bit back to previous state */
                change_bit(ICE_FLAG_VF_TRUE_PROMISC_ENA, pf->flags);
                ret = -EAGAIN;
        }
ethtool_exit:
        clear_bit(ICE_FLAG_ETHTOOL_CTXT, pf->flags);
        return ret;
}

static int ice_get_sset_count(struct net_device *netdev, int sset)
{
        switch (sset) {
        case ETH_SS_STATS:
                /* The number (and order) of strings reported *must* remain
                 * constant for a given netdevice. This function must not
                 * report a different number based on run time parameters
                 * (such as the number of queues in use, or the setting of
                 * a private ethtool flag). This is due to the nature of the
                 * ethtool stats API.
                 *
                 * Userspace programs such as ethtool must make 3 separate
                 * ioctl requests, one for size, one for the strings, and
                 * finally one for the stats. Since these cross into
                 * userspace, changes to the number or size could result in
                 * undefined memory access or incorrect string<->value
                 * correlations for statistics.
                 *
                 * Even if it appears to be safe, changes to the size or
                 * order of strings will suffer from race conditions and are
                 * not safe.
                 */
                return ICE_ALL_STATS_LEN(netdev);
        case ETH_SS_TEST:
                return ICE_TEST_LEN;
        case ETH_SS_PRIV_FLAGS:
                return ICE_PRIV_FLAG_ARRAY_SIZE;
        default:
                return -EOPNOTSUPP;
        }
}

static void
ice_get_ethtool_stats(struct net_device *netdev,
                      struct ethtool_stats __always_unused *stats, u64 *data)
{
        struct ice_netdev_priv *np = netdev_priv(netdev);
        struct ice_vsi *vsi = np->vsi;
        struct ice_pf *pf = vsi->back;
        struct ice_ring *ring;
        unsigned int j;
        int i = 0;
        char *p;

        ice_update_pf_stats(pf);
        ice_update_vsi_stats(vsi);

        for (j = 0; j < ICE_VSI_STATS_LEN; j++) {
                p = (char *)vsi + ice_gstrings_vsi_stats[j].stat_offset;
                data[i++] = (ice_gstrings_vsi_stats[j].sizeof_stat ==
                             sizeof(u64)) ? *(u64 *)p : *(u32 *)p;
        }

        /* populate per queue stats */
        rcu_read_lock();

        ice_for_each_alloc_txq(vsi, j) {
                ring = READ_ONCE(vsi->tx_rings[j]);
                if (ring) {
                        data[i++] = ring->stats.pkts;
                        data[i++] = ring->stats.bytes;
                } else {
                        data[i++] = 0;
                        data[i++] = 0;
                }
        }

        ice_for_each_alloc_rxq(vsi, j) {
                ring = READ_ONCE(vsi->rx_rings[j]);
                if (ring) {
                        data[i++] = ring->stats.pkts;
                        data[i++] = ring->stats.bytes;
                } else {
                        data[i++] = 0;
                        data[i++] = 0;
                }
        }

        rcu_read_unlock();

        if (vsi->type != ICE_VSI_PF)
                return;

        for (j = 0; j < ICE_PF_STATS_LEN; j++) {
                p = (char *)pf + ice_gstrings_pf_stats[j].stat_offset;
                data[i++] = (ice_gstrings_pf_stats[j].sizeof_stat ==
                             sizeof(u64)) ? *(u64 *)p : *(u32 *)p;
        }

        for (j = 0; j < ICE_MAX_USER_PRIORITY; j++) {
                data[i++] = pf->stats.priority_xon_tx[j];
                data[i++] = pf->stats.priority_xoff_tx[j];
        }

        for (j = 0; j < ICE_MAX_USER_PRIORITY; j++) {
                data[i++] = pf->stats.priority_xon_rx[j];
                data[i++] = pf->stats.priority_xoff_rx[j];
        }
}

#define ICE_PHY_TYPE_LOW_MASK_MIN_1G    (ICE_PHY_TYPE_LOW_100BASE_TX | \
                                         ICE_PHY_TYPE_LOW_100M_SGMII)

#define ICE_PHY_TYPE_LOW_MASK_MIN_25G   (ICE_PHY_TYPE_LOW_MASK_MIN_1G | \
                                         ICE_PHY_TYPE_LOW_1000BASE_T | \
                                         ICE_PHY_TYPE_LOW_1000BASE_SX | \
                                         ICE_PHY_TYPE_LOW_1000BASE_LX | \
                                         ICE_PHY_TYPE_LOW_1000BASE_KX | \
                                         ICE_PHY_TYPE_LOW_1G_SGMII | \
                                         ICE_PHY_TYPE_LOW_2500BASE_T | \
                                         ICE_PHY_TYPE_LOW_2500BASE_X | \
                                         ICE_PHY_TYPE_LOW_2500BASE_KX | \
                                         ICE_PHY_TYPE_LOW_5GBASE_T | \
                                         ICE_PHY_TYPE_LOW_5GBASE_KR | \
                                         ICE_PHY_TYPE_LOW_10GBASE_T | \
                                         ICE_PHY_TYPE_LOW_10G_SFI_DA | \
                                         ICE_PHY_TYPE_LOW_10GBASE_SR | \
                                         ICE_PHY_TYPE_LOW_10GBASE_LR | \
                                         ICE_PHY_TYPE_LOW_10GBASE_KR_CR1 | \
                                         ICE_PHY_TYPE_LOW_10G_SFI_AOC_ACC | \
                                         ICE_PHY_TYPE_LOW_10G_SFI_C2C)

#define ICE_PHY_TYPE_LOW_MASK_100G      (ICE_PHY_TYPE_LOW_100GBASE_CR4 | \
                                         ICE_PHY_TYPE_LOW_100GBASE_SR4 | \
                                         ICE_PHY_TYPE_LOW_100GBASE_LR4 | \
                                         ICE_PHY_TYPE_LOW_100GBASE_KR4 | \
                                         ICE_PHY_TYPE_LOW_100G_CAUI4_AOC_ACC | \
                                         ICE_PHY_TYPE_LOW_100G_CAUI4 | \
                                         ICE_PHY_TYPE_LOW_100G_AUI4_AOC_ACC | \
                                         ICE_PHY_TYPE_LOW_100G_AUI4 | \
                                         ICE_PHY_TYPE_LOW_100GBASE_CR_PAM4 | \
                                         ICE_PHY_TYPE_LOW_100GBASE_KR_PAM4 | \
                                         ICE_PHY_TYPE_LOW_100GBASE_CP2 | \
                                         ICE_PHY_TYPE_LOW_100GBASE_SR2 | \
                                         ICE_PHY_TYPE_LOW_100GBASE_DR)

#define ICE_PHY_TYPE_HIGH_MASK_100G     (ICE_PHY_TYPE_HIGH_100GBASE_KR2_PAM4 | \
                                         ICE_PHY_TYPE_HIGH_100G_CAUI2_AOC_ACC |\
                                         ICE_PHY_TYPE_HIGH_100G_CAUI2 | \
                                         ICE_PHY_TYPE_HIGH_100G_AUI2_AOC_ACC | \
                                         ICE_PHY_TYPE_HIGH_100G_AUI2)

/**
 * ice_mask_min_supported_speeds
 * @phy_types_high: PHY type high
 * @phy_types_low: PHY type low to apply minimum supported speeds mask
 *
 * Apply minimum supported speeds mask to PHY type low. These are the speeds
 * for ethtool supported link mode.
 */
static
void ice_mask_min_supported_speeds(u64 phy_types_high, u64 *phy_types_low)
{
        /* if QSFP connection with 100G speed, minimum supported speed is 25G */
        if (*phy_types_low & ICE_PHY_TYPE_LOW_MASK_100G ||
            phy_types_high & ICE_PHY_TYPE_HIGH_MASK_100G)
                *phy_types_low &= ~ICE_PHY_TYPE_LOW_MASK_MIN_25G;
        else
                *phy_types_low &= ~ICE_PHY_TYPE_LOW_MASK_MIN_1G;
}

#define ice_ethtool_advertise_link_mode(aq_link_speed, ethtool_link_mode)    \
        do {                                                                 \
                if (req_speeds & (aq_link_speed) ||                          \
                    (!req_speeds &&                                          \
                     (adv_phy_type_lo & phy_type_mask_lo ||                  \
                      adv_phy_type_hi & phy_type_mask_hi)))                  \
                        ethtool_link_ksettings_add_link_mode(ks, advertising,\
                                                        ethtool_link_mode);  \
        } while (0)

/**
 * ice_phy_type_to_ethtool - convert the phy_types to ethtool link modes
 * @netdev: network interface device structure
 * @ks: ethtool link ksettings struct to fill out
 */
static void
ice_phy_type_to_ethtool(struct net_device *netdev,
                        struct ethtool_link_ksettings *ks)
{
        struct ice_netdev_priv *np = netdev_priv(netdev);
        struct ice_vsi *vsi = np->vsi;
        struct ice_pf *pf = vsi->back;
        u64 phy_type_mask_lo = 0;
        u64 phy_type_mask_hi = 0;
        u64 adv_phy_type_lo = 0;
        u64 adv_phy_type_hi = 0;
        u64 phy_types_high = 0;
        u64 phy_types_low = 0;
        u16 req_speeds;

        req_speeds = vsi->port_info->phy.link_info.req_speeds;

        /* Check if lenient mode is supported and enabled, or in strict mode.
         *
         * In lenient mode the Supported link modes are the PHY types without
         * media. The Advertising link mode is either 1. the user requested
         * speed, 2. the override PHY mask, or 3. the PHY types with media.
         *
         * In strict mode Supported link mode are the PHY type with media,
         * and Advertising link modes are the media PHY type or the speed
         * requested by user.
         */
        if (test_bit(ICE_FLAG_LINK_LENIENT_MODE_ENA, pf->flags)) {
                struct ice_link_default_override_tlv *ldo;

                ldo = &pf->link_dflt_override;
                phy_types_low = le64_to_cpu(pf->nvm_phy_type_lo);
                phy_types_high = le64_to_cpu(pf->nvm_phy_type_hi);

                ice_mask_min_supported_speeds(phy_types_high, &phy_types_low);

                /* If override enabled and PHY mask set, then
                 * Advertising link mode is the intersection of the PHY
                 * types without media and the override PHY mask.
                 */
                if (ldo->options & ICE_LINK_OVERRIDE_EN &&
                    (ldo->phy_type_low || ldo->phy_type_high)) {
                        adv_phy_type_lo =
                                le64_to_cpu(pf->nvm_phy_type_lo) &
                                ldo->phy_type_low;
                        adv_phy_type_hi =
                                le64_to_cpu(pf->nvm_phy_type_hi) &
                                ldo->phy_type_high;
                }
        } else {
                phy_types_low = vsi->port_info->phy.phy_type_low;
                phy_types_high = vsi->port_info->phy.phy_type_high;
        }

        /* If Advertising link mode PHY type is not using override PHY type,
         * then use PHY type with media.
         */
        if (!adv_phy_type_lo && !adv_phy_type_hi) {
                adv_phy_type_lo = vsi->port_info->phy.phy_type_low;
                adv_phy_type_hi = vsi->port_info->phy.phy_type_high;
        }

        ethtool_link_ksettings_zero_link_mode(ks, supported);
        ethtool_link_ksettings_zero_link_mode(ks, advertising);

        phy_type_mask_lo = ICE_PHY_TYPE_LOW_100BASE_TX |
                           ICE_PHY_TYPE_LOW_100M_SGMII;
        if (phy_types_low & phy_type_mask_lo) {
                ethtool_link_ksettings_add_link_mode(ks, supported,
                                                     100baseT_Full);

                ice_ethtool_advertise_link_mode(ICE_AQ_LINK_SPEED_100MB,
                                                100baseT_Full);
        }

        phy_type_mask_lo = ICE_PHY_TYPE_LOW_1000BASE_T |
                           ICE_PHY_TYPE_LOW_1G_SGMII;
        if (phy_types_low & phy_type_mask_lo) {
                ethtool_link_ksettings_add_link_mode(ks, supported,
                                                     1000baseT_Full);
                ice_ethtool_advertise_link_mode(ICE_AQ_LINK_SPEED_1000MB,
                                                1000baseT_Full);
        }

        phy_type_mask_lo = ICE_PHY_TYPE_LOW_1000BASE_KX;
        if (phy_types_low & phy_type_mask_lo) {
                ethtool_link_ksettings_add_link_mode(ks, supported,
                                                     1000baseKX_Full);
                ice_ethtool_advertise_link_mode(ICE_AQ_LINK_SPEED_1000MB,
                                                1000baseKX_Full);
        }

        phy_type_mask_lo = ICE_PHY_TYPE_LOW_1000BASE_SX |
                           ICE_PHY_TYPE_LOW_1000BASE_LX;
        if (phy_types_low & phy_type_mask_lo) {
                ethtool_link_ksettings_add_link_mode(ks, supported,
                                                     1000baseX_Full);
                ice_ethtool_advertise_link_mode(ICE_AQ_LINK_SPEED_1000MB,
                                                1000baseX_Full);
        }

        phy_type_mask_lo = ICE_PHY_TYPE_LOW_2500BASE_T;
        if (phy_types_low & phy_type_mask_lo) {
                ethtool_link_ksettings_add_link_mode(ks, supported,
                                                     2500baseT_Full);
                ice_ethtool_advertise_link_mode(ICE_AQ_LINK_SPEED_2500MB,
                                                2500baseT_Full);
        }

        phy_type_mask_lo = ICE_PHY_TYPE_LOW_2500BASE_X |
                           ICE_PHY_TYPE_LOW_2500BASE_KX;
        if (phy_types_low & phy_type_mask_lo) {
                ethtool_link_ksettings_add_link_mode(ks, supported,
                                                     2500baseX_Full);
                ice_ethtool_advertise_link_mode(ICE_AQ_LINK_SPEED_2500MB,
                                                2500baseX_Full);
        }

        phy_type_mask_lo = ICE_PHY_TYPE_LOW_5GBASE_T |
                           ICE_PHY_TYPE_LOW_5GBASE_KR;
        if (phy_types_low & phy_type_mask_lo) {
                ethtool_link_ksettings_add_link_mode(ks, supported,
                                                     5000baseT_Full);
                ice_ethtool_advertise_link_mode(ICE_AQ_LINK_SPEED_5GB,
                                                5000baseT_Full);
        }

        phy_type_mask_lo = ICE_PHY_TYPE_LOW_10GBASE_T |
                           ICE_PHY_TYPE_LOW_10G_SFI_DA |
                           ICE_PHY_TYPE_LOW_10G_SFI_AOC_ACC |
                           ICE_PHY_TYPE_LOW_10G_SFI_C2C;
        if (phy_types_low & phy_type_mask_lo) {
                ethtool_link_ksettings_add_link_mode(ks, supported,
                                                     10000baseT_Full);
                ice_ethtool_advertise_link_mode(ICE_AQ_LINK_SPEED_10GB,
                                                10000baseT_Full);
        }

        phy_type_mask_lo = ICE_PHY_TYPE_LOW_10GBASE_KR_CR1;
        if (phy_types_low & phy_type_mask_lo) {
                ethtool_link_ksettings_add_link_mode(ks, supported,
                                                     10000baseKR_Full);
                ice_ethtool_advertise_link_mode(ICE_AQ_LINK_SPEED_10GB,
                                                10000baseKR_Full);
        }

        phy_type_mask_lo = ICE_PHY_TYPE_LOW_10GBASE_SR;
        if (phy_types_low & phy_type_mask_lo) {
                ethtool_link_ksettings_add_link_mode(ks, supported,
                                                     10000baseSR_Full);
                ice_ethtool_advertise_link_mode(ICE_AQ_LINK_SPEED_10GB,
                                                10000baseSR_Full);
        }

        phy_type_mask_lo = ICE_PHY_TYPE_LOW_10GBASE_LR;
        if (phy_types_low & phy_type_mask_lo) {
                ethtool_link_ksettings_add_link_mode(ks, supported,
                                                     10000baseLR_Full);
                ice_ethtool_advertise_link_mode(ICE_AQ_LINK_SPEED_10GB,
                                                10000baseLR_Full);
        }

        phy_type_mask_lo = ICE_PHY_TYPE_LOW_25GBASE_T |
                           ICE_PHY_TYPE_LOW_25GBASE_CR |
                           ICE_PHY_TYPE_LOW_25GBASE_CR_S |
                           ICE_PHY_TYPE_LOW_25GBASE_CR1 |
                           ICE_PHY_TYPE_LOW_25G_AUI_AOC_ACC |
                           ICE_PHY_TYPE_LOW_25G_AUI_C2C;
        if (phy_types_low & phy_type_mask_lo) {
                ethtool_link_ksettings_add_link_mode(ks, supported,
                                                     25000baseCR_Full);
                ice_ethtool_advertise_link_mode(ICE_AQ_LINK_SPEED_25GB,
                                                25000baseCR_Full);
        }

        phy_type_mask_lo = ICE_PHY_TYPE_LOW_25GBASE_SR |
                           ICE_PHY_TYPE_LOW_25GBASE_LR;
        if (phy_types_low & phy_type_mask_lo) {
                ethtool_link_ksettings_add_link_mode(ks, supported,
                                                     25000baseSR_Full);
                ice_ethtool_advertise_link_mode(ICE_AQ_LINK_SPEED_25GB,
                                                25000baseSR_Full);
        }

        phy_type_mask_lo = ICE_PHY_TYPE_LOW_25GBASE_KR |
                           ICE_PHY_TYPE_LOW_25GBASE_KR_S |
                           ICE_PHY_TYPE_LOW_25GBASE_KR1;
        if (phy_types_low & phy_type_mask_lo) {
                ethtool_link_ksettings_add_link_mode(ks, supported,
                                                     25000baseKR_Full);
                ice_ethtool_advertise_link_mode(ICE_AQ_LINK_SPEED_25GB,
                                                25000baseKR_Full);
        }

        phy_type_mask_lo = ICE_PHY_TYPE_LOW_40GBASE_KR4;
        if (phy_types_low & phy_type_mask_lo) {
                ethtool_link_ksettings_add_link_mode(ks, supported,
                                                     40000baseKR4_Full);
                ice_ethtool_advertise_link_mode(ICE_AQ_LINK_SPEED_40GB,
                                                40000baseKR4_Full);
        }

        phy_type_mask_lo = ICE_PHY_TYPE_LOW_40GBASE_CR4 |
                           ICE_PHY_TYPE_LOW_40G_XLAUI_AOC_ACC |
                           ICE_PHY_TYPE_LOW_40G_XLAUI;
        if (phy_types_low & phy_type_mask_lo) {
                ethtool_link_ksettings_add_link_mode(ks, supported,
                                                     40000baseCR4_Full);
                ice_ethtool_advertise_link_mode(ICE_AQ_LINK_SPEED_40GB,
                                                40000baseCR4_Full);
        }

        phy_type_mask_lo = ICE_PHY_TYPE_LOW_40GBASE_SR4;
        if (phy_types_low & phy_type_mask_lo) {
                ethtool_link_ksettings_add_link_mode(ks, supported,
                                                     40000baseSR4_Full);
                ice_ethtool_advertise_link_mode(ICE_AQ_LINK_SPEED_40GB,
                                                40000baseSR4_Full);
        }

        phy_type_mask_lo = ICE_PHY_TYPE_LOW_40GBASE_LR4;
        if (phy_types_low & phy_type_mask_lo) {
                ethtool_link_ksettings_add_link_mode(ks, supported,
                                                     40000baseLR4_Full);
                ice_ethtool_advertise_link_mode(ICE_AQ_LINK_SPEED_40GB,
                                                40000baseLR4_Full);
        }

        phy_type_mask_lo = ICE_PHY_TYPE_LOW_50GBASE_CR2 |
                           ICE_PHY_TYPE_LOW_50G_LAUI2_AOC_ACC |
                           ICE_PHY_TYPE_LOW_50G_LAUI2 |
                           ICE_PHY_TYPE_LOW_50G_AUI2_AOC_ACC |
                           ICE_PHY_TYPE_LOW_50G_AUI2 |
                           ICE_PHY_TYPE_LOW_50GBASE_CP |
                           ICE_PHY_TYPE_LOW_50GBASE_SR |
                           ICE_PHY_TYPE_LOW_50G_AUI1_AOC_ACC |
                           ICE_PHY_TYPE_LOW_50G_AUI1;
        if (phy_types_low & phy_type_mask_lo) {
                ethtool_link_ksettings_add_link_mode(ks, supported,
                                                     50000baseCR2_Full);
                ice_ethtool_advertise_link_mode(ICE_AQ_LINK_SPEED_50GB,
                                                50000baseCR2_Full);
        }

        phy_type_mask_lo = ICE_PHY_TYPE_LOW_50GBASE_KR2 |
                           ICE_PHY_TYPE_LOW_50GBASE_KR_PAM4;
        if (phy_types_low & phy_type_mask_lo) {
                ethtool_link_ksettings_add_link_mode(ks, supported,
                                                     50000baseKR2_Full);
                ice_ethtool_advertise_link_mode(ICE_AQ_LINK_SPEED_50GB,
                                                50000baseKR2_Full);
        }

        phy_type_mask_lo = ICE_PHY_TYPE_LOW_50GBASE_SR2 |
                           ICE_PHY_TYPE_LOW_50GBASE_LR2 |
                           ICE_PHY_TYPE_LOW_50GBASE_FR |
                           ICE_PHY_TYPE_LOW_50GBASE_LR;
        if (phy_types_low & phy_type_mask_lo) {
                ethtool_link_ksettings_add_link_mode(ks, supported,
                                                     50000baseSR2_Full);
                ice_ethtool_advertise_link_mode(ICE_AQ_LINK_SPEED_50GB,
                                                50000baseSR2_Full);
        }

        phy_type_mask_lo = ICE_PHY_TYPE_LOW_100GBASE_CR4 |
                           ICE_PHY_TYPE_LOW_100G_CAUI4_AOC_ACC |
                           ICE_PHY_TYPE_LOW_100G_CAUI4 |
                           ICE_PHY_TYPE_LOW_100G_AUI4_AOC_ACC |
                           ICE_PHY_TYPE_LOW_100G_AUI4 |
                           ICE_PHY_TYPE_LOW_100GBASE_CR_PAM4 |
                           ICE_PHY_TYPE_LOW_100GBASE_CP2;
        phy_type_mask_hi = ICE_PHY_TYPE_HIGH_100G_CAUI2_AOC_ACC |
                           ICE_PHY_TYPE_HIGH_100G_CAUI2 |
                           ICE_PHY_TYPE_HIGH_100G_AUI2_AOC_ACC |
                           ICE_PHY_TYPE_HIGH_100G_AUI2;
        if (phy_types_low & phy_type_mask_lo ||
            phy_types_high & phy_type_mask_hi) {
                ethtool_link_ksettings_add_link_mode(ks, supported,
                                                     100000baseCR4_Full);
                ice_ethtool_advertise_link_mode(ICE_AQ_LINK_SPEED_100GB,
                                                100000baseCR4_Full);
        }

        phy_type_mask_lo = ICE_PHY_TYPE_LOW_100GBASE_SR4 |
                           ICE_PHY_TYPE_LOW_100GBASE_SR2;
        if (phy_types_low & phy_type_mask_lo) {
                ethtool_link_ksettings_add_link_mode(ks, supported,
                                                     100000baseSR4_Full);
                ice_ethtool_advertise_link_mode(ICE_AQ_LINK_SPEED_100GB,
                                                100000baseSR4_Full);
        }

        phy_type_mask_lo = ICE_PHY_TYPE_LOW_100GBASE_LR4 |
                           ICE_PHY_TYPE_LOW_100GBASE_DR;
        if (phy_types_low & phy_type_mask_lo) {
                ethtool_link_ksettings_add_link_mode(ks, supported,
                                                     100000baseLR4_ER4_Full);
                ice_ethtool_advertise_link_mode(ICE_AQ_LINK_SPEED_100GB,
                                                100000baseLR4_ER4_Full);
        }

        phy_type_mask_lo = ICE_PHY_TYPE_LOW_100GBASE_KR4 |
                           ICE_PHY_TYPE_LOW_100GBASE_KR_PAM4;
        phy_type_mask_hi = ICE_PHY_TYPE_HIGH_100GBASE_KR2_PAM4;
        if (phy_types_low & phy_type_mask_lo ||
            phy_types_high & phy_type_mask_hi) {
                ethtool_link_ksettings_add_link_mode(ks, supported,
                                                     100000baseKR4_Full);
                ice_ethtool_advertise_link_mode(ICE_AQ_LINK_SPEED_100GB,
                                                100000baseKR4_Full);
        }

        /* Autoneg PHY types */
        if (phy_types_low & ICE_PHY_TYPE_LOW_100BASE_TX ||
            phy_types_low & ICE_PHY_TYPE_LOW_1000BASE_T ||
            phy_types_low & ICE_PHY_TYPE_LOW_1000BASE_KX ||
            phy_types_low & ICE_PHY_TYPE_LOW_2500BASE_T ||
            phy_types_low & ICE_PHY_TYPE_LOW_2500BASE_KX ||
            phy_types_low & ICE_PHY_TYPE_LOW_5GBASE_T ||
            phy_types_low & ICE_PHY_TYPE_LOW_5GBASE_KR ||
            phy_types_low & ICE_PHY_TYPE_LOW_10GBASE_T ||
            phy_types_low & ICE_PHY_TYPE_LOW_10GBASE_KR_CR1 ||
            phy_types_low & ICE_PHY_TYPE_LOW_25GBASE_T ||
            phy_types_low & ICE_PHY_TYPE_LOW_25GBASE_CR ||
            phy_types_low & ICE_PHY_TYPE_LOW_25GBASE_CR_S ||
            phy_types_low & ICE_PHY_TYPE_LOW_25GBASE_CR1 ||
            phy_types_low & ICE_PHY_TYPE_LOW_25GBASE_KR ||
            phy_types_low & ICE_PHY_TYPE_LOW_25GBASE_KR_S ||
            phy_types_low & ICE_PHY_TYPE_LOW_25GBASE_KR1 ||
            phy_types_low & ICE_PHY_TYPE_LOW_40GBASE_CR4 ||
            phy_types_low & ICE_PHY_TYPE_LOW_40GBASE_KR4) {
                ethtool_link_ksettings_add_link_mode(ks, supported,
                                                     Autoneg);
                ethtool_link_ksettings_add_link_mode(ks, advertising,
                                                     Autoneg);
        }
        if (phy_types_low & ICE_PHY_TYPE_LOW_50GBASE_CR2 ||
            phy_types_low & ICE_PHY_TYPE_LOW_50GBASE_KR2 ||
            phy_types_low & ICE_PHY_TYPE_LOW_50GBASE_CP ||
            phy_types_low & ICE_PHY_TYPE_LOW_50GBASE_KR_PAM4) {
                ethtool_link_ksettings_add_link_mode(ks, supported,
                                                     Autoneg);
                ethtool_link_ksettings_add_link_mode(ks, advertising,
                                                     Autoneg);
        }
        if (phy_types_low & ICE_PHY_TYPE_LOW_100GBASE_CR4 ||
            phy_types_low & ICE_PHY_TYPE_LOW_100GBASE_KR4 ||
            phy_types_low & ICE_PHY_TYPE_LOW_100GBASE_KR_PAM4 ||
            phy_types_low & ICE_PHY_TYPE_LOW_100GBASE_CP2) {
                ethtool_link_ksettings_add_link_mode(ks, supported,
                                                     Autoneg);
                ethtool_link_ksettings_add_link_mode(ks, advertising,
                                                     Autoneg);
        }
}

#define TEST_SET_BITS_TIMEOUT   50
#define TEST_SET_BITS_SLEEP_MAX 2000
#define TEST_SET_BITS_SLEEP_MIN 1000

/**
 * ice_get_settings_link_up - Get Link settings for when link is up
 * @ks: ethtool ksettings to fill in
 * @netdev: network interface device structure
 */
static void
ice_get_settings_link_up(struct ethtool_link_ksettings *ks,
                         struct net_device *netdev)
{
        struct ice_netdev_priv *np = netdev_priv(netdev);
        struct ice_port_info *pi = np->vsi->port_info;
        struct ice_link_status *link_info;
        struct ice_vsi *vsi = np->vsi;

        link_info = &vsi->port_info->phy.link_info;

        /* Get supported and advertised settings from PHY ability with media */
        ice_phy_type_to_ethtool(netdev, ks);

        switch (link_info->link_speed) {
        case ICE_AQ_LINK_SPEED_100GB:
                ks->base.speed = SPEED_100000;
                break;
        case ICE_AQ_LINK_SPEED_50GB:
                ks->base.speed = SPEED_50000;
                break;
        case ICE_AQ_LINK_SPEED_40GB:
                ks->base.speed = SPEED_40000;
                break;
        case ICE_AQ_LINK_SPEED_25GB:
                ks->base.speed = SPEED_25000;
                break;
        case ICE_AQ_LINK_SPEED_20GB:
                ks->base.speed = SPEED_20000;
                break;
        case ICE_AQ_LINK_SPEED_10GB:
                ks->base.speed = SPEED_10000;
                break;
        case ICE_AQ_LINK_SPEED_5GB:
                ks->base.speed = SPEED_5000;
                break;
        case ICE_AQ_LINK_SPEED_2500MB:
                ks->base.speed = SPEED_2500;
                break;
        case ICE_AQ_LINK_SPEED_1000MB:
                ks->base.speed = SPEED_1000;
                break;
        case ICE_AQ_LINK_SPEED_100MB:
                ks->base.speed = SPEED_100;
                break;
        default:
                netdev_info(netdev, "WARNING: Unrecognized link_speed (0x%x).\n",
                            link_info->link_speed);
                break;
        }
        ks->base.duplex = DUPLEX_FULL;

        if (link_info->an_info & ICE_AQ_AN_COMPLETED)
                ethtool_link_ksettings_add_link_mode(ks, lp_advertising,
                                                     Autoneg);

        /* Set flow control negotiated Rx/Tx pause */
        switch (pi->fc.current_mode) {
        case ICE_FC_FULL:
                ethtool_link_ksettings_add_link_mode(ks, lp_advertising, Pause);
                break;
        case ICE_FC_TX_PAUSE:
                ethtool_link_ksettings_add_link_mode(ks, lp_advertising, Pause);
                ethtool_link_ksettings_add_link_mode(ks, lp_advertising,
                                                     Asym_Pause);
                break;
        case ICE_FC_RX_PAUSE:
                ethtool_link_ksettings_add_link_mode(ks, lp_advertising,
                                                     Asym_Pause);
                break;
        case ICE_FC_PFC:
        default:
                ethtool_link_ksettings_del_link_mode(ks, lp_advertising, Pause);
                ethtool_link_ksettings_del_link_mode(ks, lp_advertising,
                                                     Asym_Pause);
                break;
        }
}

/**
 * ice_get_settings_link_down - Get the Link settings when link is down
 * @ks: ethtool ksettings to fill in
 * @netdev: network interface device structure
 *
 * Reports link settings that can be determined when link is down
 */
static void
ice_get_settings_link_down(struct ethtool_link_ksettings *ks,
                           struct net_device *netdev)
{
        /* link is down and the driver needs to fall back on
         * supported PHY types to figure out what info to display
         */
        ice_phy_type_to_ethtool(netdev, ks);

        /* With no link, speed and duplex are unknown */
        ks->base.speed = SPEED_UNKNOWN;
        ks->base.duplex = DUPLEX_UNKNOWN;
}

/**
 * ice_get_link_ksettings - Get Link Speed and Duplex settings
 * @netdev: network interface device structure
 * @ks: ethtool ksettings
 *
 * Reports speed/duplex settings based on media_type
 */
static int
ice_get_link_ksettings(struct net_device *netdev,
                       struct ethtool_link_ksettings *ks)
{
        struct ice_netdev_priv *np = netdev_priv(netdev);
        struct ice_aqc_get_phy_caps_data *caps;
        struct ice_link_status *hw_link_info;
        struct ice_vsi *vsi = np->vsi;
        enum ice_status status;
        int err = 0;

        ethtool_link_ksettings_zero_link_mode(ks, supported);
        ethtool_link_ksettings_zero_link_mode(ks, advertising);
        ethtool_link_ksettings_zero_link_mode(ks, lp_advertising);
        hw_link_info = &vsi->port_info->phy.link_info;

        /* set speed and duplex */
        if (hw_link_info->link_info & ICE_AQ_LINK_UP)
                ice_get_settings_link_up(ks, netdev);
        else
                ice_get_settings_link_down(ks, netdev);

        /* set autoneg settings */
        ks->base.autoneg = (hw_link_info->an_info & ICE_AQ_AN_COMPLETED) ?
                AUTONEG_ENABLE : AUTONEG_DISABLE;

        /* set media type settings */
        switch (vsi->port_info->phy.media_type) {
        case ICE_MEDIA_FIBER:
                ethtool_link_ksettings_add_link_mode(ks, supported, FIBRE);
                ks->base.port = PORT_FIBRE;
                break;
        case ICE_MEDIA_BASET:
                ethtool_link_ksettings_add_link_mode(ks, supported, TP);
                ethtool_link_ksettings_add_link_mode(ks, advertising, TP);
                ks->base.port = PORT_TP;
                break;
        case ICE_MEDIA_BACKPLANE:
                ethtool_link_ksettings_add_link_mode(ks, supported, Autoneg);
                ethtool_link_ksettings_add_link_mode(ks, supported, Backplane);
                ethtool_link_ksettings_add_link_mode(ks, advertising, Autoneg);
                ethtool_link_ksettings_add_link_mode(ks, advertising,
                                                     Backplane);
                ks->base.port = PORT_NONE;
                break;
        case ICE_MEDIA_DA:
                ethtool_link_ksettings_add_link_mode(ks, supported, FIBRE);

                ethtool_link_ksettings_add_link_mode(ks, advertising, FIBRE);
                ks->base.port = PORT_DA;
                break;
        default:
                ks->base.port = PORT_OTHER;
                break;
        }

        /* flow control is symmetric and always supported */
        ethtool_link_ksettings_add_link_mode(ks, supported, Pause);

        caps = kzalloc(sizeof(*caps), GFP_KERNEL);
        if (!caps)
                return -ENOMEM;

        status = ice_aq_get_phy_caps(vsi->port_info, false,
                                     ICE_AQC_REPORT_SW_CFG, caps, NULL);
        if (status) {
                err = -EIO;
                goto done;
        }

        /* Set the advertised flow control based on the PHY capability */
        if ((caps->caps & ICE_AQC_PHY_EN_TX_LINK_PAUSE) &&
            (caps->caps & ICE_AQC_PHY_EN_RX_LINK_PAUSE)) {
                ethtool_link_ksettings_add_link_mode(ks, advertising, Pause);
                ethtool_link_ksettings_add_link_mode(ks, advertising,
                                                     Asym_Pause);
        } else if (caps->caps & ICE_AQC_PHY_EN_TX_LINK_PAUSE) {
                ethtool_link_ksettings_add_link_mode(ks, advertising,
                                                     Asym_Pause);
        } else if (caps->caps & ICE_AQC_PHY_EN_RX_LINK_PAUSE) {
                ethtool_link_ksettings_add_link_mode(ks, advertising, Pause);
                ethtool_link_ksettings_add_link_mode(ks, advertising,
                                                     Asym_Pause);
        } else {
                ethtool_link_ksettings_del_link_mode(ks, advertising, Pause);
                ethtool_link_ksettings_del_link_mode(ks, advertising,
                                                     Asym_Pause);
        }

        /* Set advertised FEC modes based on PHY capability */
        ethtool_link_ksettings_add_link_mode(ks, advertising, FEC_NONE);

        if (caps->link_fec_options & ICE_AQC_PHY_FEC_10G_KR_40G_KR4_REQ ||
            caps->link_fec_options & ICE_AQC_PHY_FEC_25G_KR_REQ)
                ethtool_link_ksettings_add_link_mode(ks, advertising,
                                                     FEC_BASER);
        if (caps->link_fec_options & ICE_AQC_PHY_FEC_25G_RS_528_REQ ||
            caps->link_fec_options & ICE_AQC_PHY_FEC_25G_RS_544_REQ)
                ethtool_link_ksettings_add_link_mode(ks, advertising, FEC_RS);

        status = ice_aq_get_phy_caps(vsi->port_info, false,
                                     ICE_AQC_REPORT_TOPO_CAP, caps, NULL);
        if (status) {
                err = -EIO;
                goto done;
        }

        /* Set supported FEC modes based on PHY capability */
        ethtool_link_ksettings_add_link_mode(ks, supported, FEC_NONE);

        if (caps->link_fec_options & ICE_AQC_PHY_FEC_10G_KR_40G_KR4_EN ||
            caps->link_fec_options & ICE_AQC_PHY_FEC_25G_KR_CLAUSE74_EN)
                ethtool_link_ksettings_add_link_mode(ks, supported, FEC_BASER);
        if (caps->link_fec_options & ICE_AQC_PHY_FEC_25G_RS_CLAUSE91_EN)
                ethtool_link_ksettings_add_link_mode(ks, supported, FEC_RS);

done:
        kfree(caps);
        return err;
}

/**
 * ice_ksettings_find_adv_link_speed - Find advertising link speed
 * @ks: ethtool ksettings
 */
static u16
ice_ksettings_find_adv_link_speed(const struct ethtool_link_ksettings *ks)
{
        u16 adv_link_speed = 0;

        if (ethtool_link_ksettings_test_link_mode(ks, advertising,
                                                  100baseT_Full))
                adv_link_speed |= ICE_AQ_LINK_SPEED_100MB;
        if (ethtool_link_ksettings_test_link_mode(ks, advertising,
                                                  1000baseX_Full))
                adv_link_speed |= ICE_AQ_LINK_SPEED_1000MB;
        if (ethtool_link_ksettings_test_link_mode(ks, advertising,
                                                  1000baseT_Full) ||
            ethtool_link_ksettings_test_link_mode(ks, advertising,
                                                  1000baseKX_Full))
                adv_link_speed |= ICE_AQ_LINK_SPEED_1000MB;
        if (ethtool_link_ksettings_test_link_mode(ks, advertising,
                                                  2500baseT_Full))
                adv_link_speed |= ICE_AQ_LINK_SPEED_2500MB;
        if (ethtool_link_ksettings_test_link_mode(ks, advertising,
                                                  2500baseX_Full))
                adv_link_speed |= ICE_AQ_LINK_SPEED_2500MB;
        if (ethtool_link_ksettings_test_link_mode(ks, advertising,
                                                  5000baseT_Full))
                adv_link_speed |= ICE_AQ_LINK_SPEED_5GB;
        if (ethtool_link_ksettings_test_link_mode(ks, advertising,
                                                  10000baseT_Full) ||
            ethtool_link_ksettings_test_link_mode(ks, advertising,
                                                  10000baseKR_Full))
                adv_link_speed |= ICE_AQ_LINK_SPEED_10GB;
        if (ethtool_link_ksettings_test_link_mode(ks, advertising,
                                                  10000baseSR_Full) ||
            ethtool_link_ksettings_test_link_mode(ks, advertising,
                                                  10000baseLR_Full))
                adv_link_speed |= ICE_AQ_LINK_SPEED_10GB;
        if (ethtool_link_ksettings_test_link_mode(ks, advertising,
                                                  25000baseCR_Full) ||
            ethtool_link_ksettings_test_link_mode(ks, advertising,
                                                  25000baseSR_Full) ||
            ethtool_link_ksettings_test_link_mode(ks, advertising,
                                                  25000baseKR_Full))
                adv_link_speed |= ICE_AQ_LINK_SPEED_25GB;
        if (ethtool_link_ksettings_test_link_mode(ks, advertising,
                                                  40000baseCR4_Full) ||
            ethtool_link_ksettings_test_link_mode(ks, advertising,
                                                  40000baseSR4_Full) ||
            ethtool_link_ksettings_test_link_mode(ks, advertising,
                                                  40000baseLR4_Full) ||
            ethtool_link_ksettings_test_link_mode(ks, advertising,
                                                  40000baseKR4_Full))
                adv_link_speed |= ICE_AQ_LINK_SPEED_40GB;
        if (ethtool_link_ksettings_test_link_mode(ks, advertising,
                                                  50000baseCR2_Full) ||
            ethtool_link_ksettings_test_link_mode(ks, advertising,
                                                  50000baseKR2_Full))
                adv_link_speed |= ICE_AQ_LINK_SPEED_50GB;
        if (ethtool_link_ksettings_test_link_mode(ks, advertising,
                                                  50000baseSR2_Full))
                adv_link_speed |= ICE_AQ_LINK_SPEED_50GB;
        if (ethtool_link_ksettings_test_link_mode(ks, advertising,
                                                  100000baseCR4_Full) ||
            ethtool_link_ksettings_test_link_mode(ks, advertising,
                                                  100000baseSR4_Full) ||
            ethtool_link_ksettings_test_link_mode(ks, advertising,
                                                  100000baseLR4_ER4_Full) ||
            ethtool_link_ksettings_test_link_mode(ks, advertising,
                                                  100000baseKR4_Full))
                adv_link_speed |= ICE_AQ_LINK_SPEED_100GB;

        return adv_link_speed;
}

/**
 * ice_setup_autoneg
 * @p: port info
 * @ks: ethtool_link_ksettings
 * @config: configuration that will be sent down to FW
 * @autoneg_enabled: autonegotiation is enabled or not
 * @autoneg_changed: will there a change in autonegotiation
 * @netdev: network interface device structure
 *
 * Setup PHY autonegotiation feature
 */
static int
ice_setup_autoneg(struct ice_port_info *p, struct ethtool_link_ksettings *ks,
                  struct ice_aqc_set_phy_cfg_data *config,
                  u8 autoneg_enabled, u8 *autoneg_changed,
                  struct net_device *netdev)
{
        int err = 0;

        *autoneg_changed = 0;

        /* Check autoneg */
        if (autoneg_enabled == AUTONEG_ENABLE) {
                /* If autoneg was not already enabled */
                if (!(p->phy.link_info.an_info & ICE_AQ_AN_COMPLETED)) {
                        /* If autoneg is not supported, return error */
                        if (!ethtool_link_ksettings_test_link_mode(ks,
                                                                   supported,
                                                                   Autoneg)) {
                                netdev_info(netdev, "Autoneg not supported on this phy.\n");
                                err = -EINVAL;
                        } else {
                                /* Autoneg is allowed to change */
                                config->caps |= ICE_AQ_PHY_ENA_AUTO_LINK_UPDT;
                                *autoneg_changed = 1;
                        }
                }
        } else {
                /* If autoneg is currently enabled */
                if (p->phy.link_info.an_info & ICE_AQ_AN_COMPLETED) {
                        /* If autoneg is supported 10GBASE_T is the only PHY
                         * that can disable it, so otherwise return error
                         */
                        if (ethtool_link_ksettings_test_link_mode(ks,
                                                                  supported,
                                                                  Autoneg)) {
                                netdev_info(netdev, "Autoneg cannot be disabled on this phy\n");
                                err = -EINVAL;
                        } else {
                                /* Autoneg is allowed to change */
                                config->caps &= ~ICE_AQ_PHY_ENA_AUTO_LINK_UPDT;
                                *autoneg_changed = 1;
                        }
                }
        }

        return err;
}

/**
 * ice_set_link_ksettings - Set Speed and Duplex
 * @netdev: network interface device structure
 * @ks: ethtool ksettings
 *
 * Set speed/duplex per media_types advertised/forced
 */
static int
ice_set_link_ksettings(struct net_device *netdev,
                       const struct ethtool_link_ksettings *ks)
{
        struct ice_netdev_priv *np = netdev_priv(netdev);
        struct ethtool_link_ksettings safe_ks, copy_ks;
        struct ice_aqc_get_phy_caps_data *abilities;
        u8 autoneg, timeout = TEST_SET_BITS_TIMEOUT;
        u16 adv_link_speed, curr_link_speed, idx;
        struct ice_aqc_set_phy_cfg_data config;
        struct ice_pf *pf = np->vsi->back;
        struct ice_port_info *p;
        u8 autoneg_changed = 0;
        enum ice_status status;
        u64 phy_type_high = 0;
        u64 phy_type_low = 0;
        int err = 0;
        bool linkup;

        p = np->vsi->port_info;

        if (!p)
                return -EOPNOTSUPP;

        /* Check if this is LAN VSI */
        ice_for_each_vsi(pf, idx)
                if (pf->vsi[idx]->type == ICE_VSI_PF) {
                        if (np->vsi != pf->vsi[idx])
                                return -EOPNOTSUPP;
                        break;
                }

        if (p->phy.media_type != ICE_MEDIA_BASET &&
            p->phy.media_type != ICE_MEDIA_FIBER &&
            p->phy.media_type != ICE_MEDIA_BACKPLANE &&
            p->phy.media_type != ICE_MEDIA_DA &&
            p->phy.link_info.link_info & ICE_AQ_LINK_UP)
                return -EOPNOTSUPP;

        abilities = kzalloc(sizeof(*abilities), GFP_KERNEL);
        if (!abilities)
                return -ENOMEM;

        /* Get the PHY capabilities based on media */
        status = ice_aq_get_phy_caps(p, false, ICE_AQC_REPORT_TOPO_CAP,
                                     abilities, NULL);
        if (status) {
                err = -EAGAIN;
                goto done;
        }

        /* copy the ksettings to copy_ks to avoid modifying the original */
        memcpy(&copy_ks, ks, sizeof(copy_ks));

        /* save autoneg out of ksettings */
        autoneg = copy_ks.base.autoneg;

        memset(&safe_ks, 0, sizeof(safe_ks));

        /* Get link modes supported by hardware.*/
        ice_phy_type_to_ethtool(netdev, &safe_ks);

        /* and check against modes requested by user.
         * Return an error if unsupported mode was set.
         */
        if (!bitmap_subset(copy_ks.link_modes.advertising,
                           safe_ks.link_modes.supported,
                           __ETHTOOL_LINK_MODE_MASK_NBITS)) {
                if (!test_bit(ICE_FLAG_LINK_LENIENT_MODE_ENA, pf->flags))
                        netdev_info(netdev, "The selected speed is not supported by the current media. Please select a link speed that is supported by the current media.\n");
                err = -EINVAL;
                goto done;
        }

        /* get our own copy of the bits to check against */
        memset(&safe_ks, 0, sizeof(safe_ks));
        safe_ks.base.cmd = copy_ks.base.cmd;
        safe_ks.base.link_mode_masks_nwords =
                copy_ks.base.link_mode_masks_nwords;
        ice_get_link_ksettings(netdev, &safe_ks);

        /* set autoneg back to what it currently is */
        copy_ks.base.autoneg = safe_ks.base.autoneg;
        /* we don't compare the speed */
        copy_ks.base.speed = safe_ks.base.speed;

        /* If copy_ks.base and safe_ks.base are not the same now, then they are
         * trying to set something that we do not support.
         */
        if (memcmp(&copy_ks.base, &safe_ks.base, sizeof(copy_ks.base))) {
                err = -EOPNOTSUPP;
                goto done;
        }

        while (test_and_set_bit(__ICE_CFG_BUSY, pf->state)) {
                timeout--;
                if (!timeout) {
                        err = -EBUSY;
                        goto done;
                }
                usleep_range(TEST_SET_BITS_SLEEP_MIN, TEST_SET_BITS_SLEEP_MAX);
        }

        /* Copy the current user PHY configuration. The current user PHY
         * configuration is initialized during probe from PHY capabilities
         * software mode, and updated on set PHY configuration.
         */
        memcpy(&config, &p->phy.curr_user_phy_cfg, sizeof(config));

        config.caps |= ICE_AQ_PHY_ENA_AUTO_LINK_UPDT;

        /* Check autoneg */
        err = ice_setup_autoneg(p, &safe_ks, &config, autoneg, &autoneg_changed,
                                netdev);

        if (err)
                goto done;

        /* Call to get the current link speed */
        p->phy.get_link_info = true;
        status = ice_get_link_status(p, &linkup);
        if (status) {
                err = -EAGAIN;
                goto done;
        }

        curr_link_speed = p->phy.link_info.link_speed;
        adv_link_speed = ice_ksettings_find_adv_link_speed(ks);

        /* If speed didn't get set, set it to what it currently is.
         * This is needed because if advertise is 0 (as it is when autoneg
         * is disabled) then speed won't get set.
         */
        if (!adv_link_speed)
                adv_link_speed = curr_link_speed;

        /* Convert the advertise link speeds to their corresponded PHY_TYPE */
        ice_update_phy_type(&phy_type_low, &phy_type_high, adv_link_speed);

        if (!autoneg_changed && adv_link_speed == curr_link_speed) {
                netdev_info(netdev, "Nothing changed, exiting without setting anything.\n");
                goto done;
        }

        /* save the requested speeds */
        p->phy.link_info.req_speeds = adv_link_speed;

        /* set link and auto negotiation so changes take effect */
        config.caps |= ICE_AQ_PHY_ENA_LINK;

        /* check if there is a PHY type for the requested advertised speed */
        if (!(phy_type_low || phy_type_high)) {
                netdev_info(netdev, "The selected speed is not supported by the current media. Please select a link speed that is supported by the current media.\n");
                err = -EAGAIN;
                goto done;
        }

        /* intersect requested advertised speed PHY types with media PHY types
         * for set PHY configuration
         */
        config.phy_type_high = cpu_to_le64(phy_type_high) &
                        abilities->phy_type_high;
        config.phy_type_low = cpu_to_le64(phy_type_low) &
                        abilities->phy_type_low;

        if (!(config.phy_type_high || config.phy_type_low)) {
                /* If there is no intersection and lenient mode is enabled, then
                 * intersect the requested advertised speed with NVM media type
                 * PHY types.
                 */
                if (test_bit(ICE_FLAG_LINK_LENIENT_MODE_ENA, pf->flags)) {
                        config.phy_type_high = cpu_to_le64(phy_type_high) &
                                               pf->nvm_phy_type_hi;
                        config.phy_type_low = cpu_to_le64(phy_type_low) &
                                              pf->nvm_phy_type_lo;
                } else {
                        netdev_info(netdev, "The selected speed is not supported by the current media. Please select a link speed that is supported by the current media.\n");
                        err = -EAGAIN;
                        goto done;
                }
        }

        /* If link is up put link down */
        if (p->phy.link_info.link_info & ICE_AQ_LINK_UP) {
                /* Tell the OS link is going down, the link will go
                 * back up when fw says it is ready asynchronously
                 */
                ice_print_link_msg(np->vsi, false);
                netif_carrier_off(netdev);
                netif_tx_stop_all_queues(netdev);
        }

        /* make the aq call */
        status = ice_aq_set_phy_cfg(&pf->hw, p, &config, NULL);
        if (status) {
                netdev_info(netdev, "Set phy config failed,\n");
                err = -EAGAIN;
                goto done;
        }

        /* Save speed request */
        p->phy.curr_user_speed_req = adv_link_speed;
done:
        kfree(abilities);
        clear_bit(__ICE_CFG_BUSY, pf->state);

        return err;
}

/**
 * ice_parse_hdrs - parses headers from RSS hash input
 * @nfc: ethtool rxnfc command
 *
 * This function parses the rxnfc command and returns intended
 * header types for RSS configuration
 */
static u32 ice_parse_hdrs(struct ethtool_rxnfc *nfc)
{
        u32 hdrs = ICE_FLOW_SEG_HDR_NONE;

        switch (nfc->flow_type) {
        case TCP_V4_FLOW:
                hdrs |= ICE_FLOW_SEG_HDR_TCP | ICE_FLOW_SEG_HDR_IPV4;
                break;
        case UDP_V4_FLOW:
                hdrs |= ICE_FLOW_SEG_HDR_UDP | ICE_FLOW_SEG_HDR_IPV4;
                break;
        case SCTP_V4_FLOW:
                hdrs |= ICE_FLOW_SEG_HDR_SCTP | ICE_FLOW_SEG_HDR_IPV4;
                break;
        case TCP_V6_FLOW:
                hdrs |= ICE_FLOW_SEG_HDR_TCP | ICE_FLOW_SEG_HDR_IPV6;
                break;
        case UDP_V6_FLOW:
                hdrs |= ICE_FLOW_SEG_HDR_UDP | ICE_FLOW_SEG_HDR_IPV6;
                break;
        case SCTP_V6_FLOW:
                hdrs |= ICE_FLOW_SEG_HDR_SCTP | ICE_FLOW_SEG_HDR_IPV6;
                break;
        default:
                break;
        }
        return hdrs;
}

#define ICE_FLOW_HASH_FLD_IPV4_SA       BIT_ULL(ICE_FLOW_FIELD_IDX_IPV4_SA)
#define ICE_FLOW_HASH_FLD_IPV6_SA       BIT_ULL(ICE_FLOW_FIELD_IDX_IPV6_SA)
#define ICE_FLOW_HASH_FLD_IPV4_DA       BIT_ULL(ICE_FLOW_FIELD_IDX_IPV4_DA)
#define ICE_FLOW_HASH_FLD_IPV6_DA       BIT_ULL(ICE_FLOW_FIELD_IDX_IPV6_DA)
#define ICE_FLOW_HASH_FLD_TCP_SRC_PORT  BIT_ULL(ICE_FLOW_FIELD_IDX_TCP_SRC_PORT)
#define ICE_FLOW_HASH_FLD_TCP_DST_PORT  BIT_ULL(ICE_FLOW_FIELD_IDX_TCP_DST_PORT)
#define ICE_FLOW_HASH_FLD_UDP_SRC_PORT  BIT_ULL(ICE_FLOW_FIELD_IDX_UDP_SRC_PORT)
#define ICE_FLOW_HASH_FLD_UDP_DST_PORT  BIT_ULL(ICE_FLOW_FIELD_IDX_UDP_DST_PORT)
#define ICE_FLOW_HASH_FLD_SCTP_SRC_PORT \
        BIT_ULL(ICE_FLOW_FIELD_IDX_SCTP_SRC_PORT)
#define ICE_FLOW_HASH_FLD_SCTP_DST_PORT \
        BIT_ULL(ICE_FLOW_FIELD_IDX_SCTP_DST_PORT)

/**
 * ice_parse_hash_flds - parses hash fields from RSS hash input
 * @nfc: ethtool rxnfc command
 *
 * This function parses the rxnfc command and returns intended
 * hash fields for RSS configuration
 */
static u64 ice_parse_hash_flds(struct ethtool_rxnfc *nfc)
{
        u64 hfld = ICE_HASH_INVALID;

        if (nfc->data & RXH_IP_SRC || nfc->data & RXH_IP_DST) {
                switch (nfc->flow_type) {
                case TCP_V4_FLOW:
                case UDP_V4_FLOW:
                case SCTP_V4_FLOW:
                        if (nfc->data & RXH_IP_SRC)
                                hfld |= ICE_FLOW_HASH_FLD_IPV4_SA;
                        if (nfc->data & RXH_IP_DST)
                                hfld |= ICE_FLOW_HASH_FLD_IPV4_DA;
                        break;
                case TCP_V6_FLOW:
                case UDP_V6_FLOW:
                case SCTP_V6_FLOW:
                        if (nfc->data & RXH_IP_SRC)
                                hfld |= ICE_FLOW_HASH_FLD_IPV6_SA;
                        if (nfc->data & RXH_IP_DST)
                                hfld |= ICE_FLOW_HASH_FLD_IPV6_DA;
                        break;
                default:
                        break;
                }
        }

        if (nfc->data & RXH_L4_B_0_1 || nfc->data & RXH_L4_B_2_3) {
                switch (nfc->flow_type) {
                case TCP_V4_FLOW:
                case TCP_V6_FLOW:
                        if (nfc->data & RXH_L4_B_0_1)
                                hfld |= ICE_FLOW_HASH_FLD_TCP_SRC_PORT;
                        if (nfc->data & RXH_L4_B_2_3)
                                hfld |= ICE_FLOW_HASH_FLD_TCP_DST_PORT;
                        break;
                case UDP_V4_FLOW:
                case UDP_V6_FLOW:
                        if (nfc->data & RXH_L4_B_0_1)
                                hfld |= ICE_FLOW_HASH_FLD_UDP_SRC_PORT;
                        if (nfc->data & RXH_L4_B_2_3)
                                hfld |= ICE_FLOW_HASH_FLD_UDP_DST_PORT;
                        break;
                case SCTP_V4_FLOW:
                case SCTP_V6_FLOW:
                        if (nfc->data & RXH_L4_B_0_1)
                                hfld |= ICE_FLOW_HASH_FLD_SCTP_SRC_PORT;
                        if (nfc->data & RXH_L4_B_2_3)
                                hfld |= ICE_FLOW_HASH_FLD_SCTP_DST_PORT;
                        break;
                default:
                        break;
                }
        }

        return hfld;
}

/**
 * ice_set_rss_hash_opt - Enable/Disable flow types for RSS hash
 * @vsi: the VSI being configured
 * @nfc: ethtool rxnfc command
 *
 * Returns Success if the flow input set is supported.
 */
static int
ice_set_rss_hash_opt(struct ice_vsi *vsi, struct ethtool_rxnfc *nfc)
{
        struct ice_pf *pf = vsi->back;
        enum ice_status status;
        struct device *dev;
        u64 hashed_flds;
        u32 hdrs;

        dev = ice_pf_to_dev(pf);
        if (ice_is_safe_mode(pf)) {
                dev_dbg(dev, "Advanced RSS disabled. Package download failed, vsi num = %d\n",
                        vsi->vsi_num);
                return -EINVAL;
        }

        hashed_flds = ice_parse_hash_flds(nfc);
        if (hashed_flds == ICE_HASH_INVALID) {
                dev_dbg(dev, "Invalid hash fields, vsi num = %d\n",
                        vsi->vsi_num);
                return -EINVAL;
        }

        hdrs = ice_parse_hdrs(nfc);
        if (hdrs == ICE_FLOW_SEG_HDR_NONE) {
                dev_dbg(dev, "Header type is not valid, vsi num = %d\n",
                        vsi->vsi_num);
                return -EINVAL;
        }

        status = ice_add_rss_cfg(&pf->hw, vsi->idx, hashed_flds, hdrs);
        if (status) {
                dev_dbg(dev, "ice_add_rss_cfg failed, vsi num = %d, error = %s\n",
                        vsi->vsi_num, ice_stat_str(status));
                return -EINVAL;
        }

        return 0;
}

/**
 * ice_get_rss_hash_opt - Retrieve hash fields for a given flow-type
 * @vsi: the VSI being configured
 * @nfc: ethtool rxnfc command
 */
static void
ice_get_rss_hash_opt(struct ice_vsi *vsi, struct ethtool_rxnfc *nfc)
{
        struct ice_pf *pf = vsi->back;
        struct device *dev;
        u64 hash_flds;
        u32 hdrs;

        dev = ice_pf_to_dev(pf);

        nfc->data = 0;
        if (ice_is_safe_mode(pf)) {
                dev_dbg(dev, "Advanced RSS disabled. Package download failed, vsi num = %d\n",
                        vsi->vsi_num);
                return;
        }

        hdrs = ice_parse_hdrs(nfc);
        if (hdrs == ICE_FLOW_SEG_HDR_NONE) {
                dev_dbg(dev, "Header type is not valid, vsi num = %d\n",
                        vsi->vsi_num);
                return;
        }

        hash_flds = ice_get_rss_cfg(&pf->hw, vsi->idx, hdrs);
        if (hash_flds == ICE_HASH_INVALID) {
                dev_dbg(dev, "No hash fields found for the given header type, vsi num = %d\n",
                        vsi->vsi_num);
                return;
        }

        if (hash_flds & ICE_FLOW_HASH_FLD_IPV4_SA ||
            hash_flds & ICE_FLOW_HASH_FLD_IPV6_SA)
                nfc->data |= (u64)RXH_IP_SRC;

        if (hash_flds & ICE_FLOW_HASH_FLD_IPV4_DA ||
            hash_flds & ICE_FLOW_HASH_FLD_IPV6_DA)
                nfc->data |= (u64)RXH_IP_DST;

        if (hash_flds & ICE_FLOW_HASH_FLD_TCP_SRC_PORT ||
            hash_flds & ICE_FLOW_HASH_FLD_UDP_SRC_PORT ||
            hash_flds & ICE_FLOW_HASH_FLD_SCTP_SRC_PORT)
                nfc->data |= (u64)RXH_L4_B_0_1;

        if (hash_flds & ICE_FLOW_HASH_FLD_TCP_DST_PORT ||
            hash_flds & ICE_FLOW_HASH_FLD_UDP_DST_PORT ||
            hash_flds & ICE_FLOW_HASH_FLD_SCTP_DST_PORT)
                nfc->data |= (u64)RXH_L4_B_2_3;
}

/**
 * ice_set_rxnfc - command to set Rx flow rules.
 * @netdev: network interface device structure
 * @cmd: ethtool rxnfc command
 *
 * Returns 0 for success and negative values for errors
 */
static int ice_set_rxnfc(struct net_device *netdev, struct ethtool_rxnfc *cmd)
{
        struct ice_netdev_priv *np = netdev_priv(netdev);
        struct ice_vsi *vsi = np->vsi;

        switch (cmd->cmd) {
        case ETHTOOL_SRXCLSRLINS:
                return ice_add_fdir_ethtool(vsi, cmd);
        case ETHTOOL_SRXCLSRLDEL:
                return ice_del_fdir_ethtool(vsi, cmd);
        case ETHTOOL_SRXFH:
                return ice_set_rss_hash_opt(vsi, cmd);
        default:
                break;
        }
        return -EOPNOTSUPP;
}

/**
 * ice_get_rxnfc - command to get Rx flow classification rules
 * @netdev: network interface device structure
 * @cmd: ethtool rxnfc command
 * @rule_locs: buffer to rturn Rx flow classification rules
 *
 * Returns Success if the command is supported.
 */
static int
ice_get_rxnfc(struct net_device *netdev, struct ethtool_rxnfc *cmd,
              u32 __always_unused *rule_locs)
{
        struct ice_netdev_priv *np = netdev_priv(netdev);
        struct ice_vsi *vsi = np->vsi;
        int ret = -EOPNOTSUPP;
        struct ice_hw *hw;

        hw = &vsi->back->hw;

        switch (cmd->cmd) {
        case ETHTOOL_GRXRINGS:
                cmd->data = vsi->rss_size;
                ret = 0;
                break;
        case ETHTOOL_GRXCLSRLCNT:
                cmd->rule_cnt = hw->fdir_active_fltr;
                /* report total rule count */
                cmd->data = ice_get_fdir_cnt_all(hw);
                ret = 0;
                break;
        case ETHTOOL_GRXCLSRULE:
                ret = ice_get_ethtool_fdir_entry(hw, cmd);
                break;
        case ETHTOOL_GRXCLSRLALL:
                ret = ice_get_fdir_fltr_ids(hw, cmd, (u32 *)rule_locs);
                break;
        case ETHTOOL_GRXFH:
                ice_get_rss_hash_opt(vsi, cmd);
                ret = 0;
                break;
        default:
                break;
        }

        return ret;
}

static void
ice_get_ringparam(struct net_device *netdev, struct ethtool_ringparam *ring)
{
        struct ice_netdev_priv *np = netdev_priv(netdev);
        struct ice_vsi *vsi = np->vsi;

        ring->rx_max_pending = ICE_MAX_NUM_DESC;
        ring->tx_max_pending = ICE_MAX_NUM_DESC;
        ring->rx_pending = vsi->rx_rings[0]->count;
        ring->tx_pending = vsi->tx_rings[0]->count;

        /* Rx mini and jumbo rings are not supported */
        ring->rx_mini_max_pending = 0;
        ring->rx_jumbo_max_pending = 0;
        ring->rx_mini_pending = 0;
        ring->rx_jumbo_pending = 0;
}

static int
ice_set_ringparam(struct net_device *netdev, struct ethtool_ringparam *ring)
{
        struct ice_ring *tx_rings = NULL, *rx_rings = NULL;
        struct ice_netdev_priv *np = netdev_priv(netdev);
        struct ice_ring *xdp_rings = NULL;
        struct ice_vsi *vsi = np->vsi;
        struct ice_pf *pf = vsi->back;
        int i, timeout = 50, err = 0;
        u16 new_rx_cnt, new_tx_cnt;

        if (ring->tx_pending > ICE_MAX_NUM_DESC ||
            ring->tx_pending < ICE_MIN_NUM_DESC ||
            ring->rx_pending > ICE_MAX_NUM_DESC ||
            ring->rx_pending < ICE_MIN_NUM_DESC) {
                netdev_err(netdev, "Descriptors requested (Tx: %d / Rx: %d) out of range [%d-%d] (increment %d)\n",
                           ring->tx_pending, ring->rx_pending,
                           ICE_MIN_NUM_DESC, ICE_MAX_NUM_DESC,
                           ICE_REQ_DESC_MULTIPLE);
                return -EINVAL;
        }

        new_tx_cnt = ALIGN(ring->tx_pending, ICE_REQ_DESC_MULTIPLE);
        if (new_tx_cnt != ring->tx_pending)
                netdev_info(netdev, "Requested Tx descriptor count rounded up to %d\n",
                            new_tx_cnt);
        new_rx_cnt = ALIGN(ring->rx_pending, ICE_REQ_DESC_MULTIPLE);
        if (new_rx_cnt != ring->rx_pending)
                netdev_info(netdev, "Requested Rx descriptor count rounded up to %d\n",
                            new_rx_cnt);

        /* if nothing to do return success */
        if (new_tx_cnt == vsi->tx_rings[0]->count &&
            new_rx_cnt == vsi->rx_rings[0]->count) {
                netdev_dbg(netdev, "Nothing to change, descriptor count is same as requested\n");
                return 0;
        }

        /* If there is a AF_XDP UMEM attached to any of Rx rings,
         * disallow changing the number of descriptors -- regardless
         * if the netdev is running or not.
         */
        if (ice_xsk_any_rx_ring_ena(vsi))
                return -EBUSY;

        while (test_and_set_bit(__ICE_CFG_BUSY, pf->state)) {
                timeout--;
                if (!timeout)
                        return -EBUSY;
                usleep_range(1000, 2000);
        }

        /* set for the next time the netdev is started */
        if (!netif_running(vsi->netdev)) {
                for (i = 0; i < vsi->alloc_txq; i++)
                        vsi->tx_rings[i]->count = new_tx_cnt;
                for (i = 0; i < vsi->alloc_rxq; i++)
                        vsi->rx_rings[i]->count = new_rx_cnt;
                if (ice_is_xdp_ena_vsi(vsi))
                        for (i = 0; i < vsi->num_xdp_txq; i++)
                                vsi->xdp_rings[i]->count = new_tx_cnt;
                vsi->num_tx_desc = (u16)new_tx_cnt;
                vsi->num_rx_desc = (u16)new_rx_cnt;
                netdev_dbg(netdev, "Link is down, descriptor count change happens when link is brought up\n");
                goto done;
        }

        if (new_tx_cnt == vsi->tx_rings[0]->count)
                goto process_rx;

        /* alloc updated Tx resources */
        netdev_info(netdev, "Changing Tx descriptor count from %d to %d\n",
                    vsi->tx_rings[0]->count, new_tx_cnt);

        tx_rings = kcalloc(vsi->num_txq, sizeof(*tx_rings), GFP_KERNEL);
        if (!tx_rings) {
                err = -ENOMEM;
                goto done;
        }

        ice_for_each_txq(vsi, i) {
                /* clone ring and setup updated count */
                tx_rings[i] = *vsi->tx_rings[i];
                tx_rings[i].count = new_tx_cnt;
                tx_rings[i].desc = NULL;
                tx_rings[i].tx_buf = NULL;
                err = ice_setup_tx_ring(&tx_rings[i]);
                if (err) {
                        while (i--)
                                ice_clean_tx_ring(&tx_rings[i]);
                        kfree(tx_rings);
                        goto done;
                }
        }

        if (!ice_is_xdp_ena_vsi(vsi))
                goto process_rx;

        /* alloc updated XDP resources */
        netdev_info(netdev, "Changing XDP descriptor count from %d to %d\n",
                    vsi->xdp_rings[0]->count, new_tx_cnt);

        xdp_rings = kcalloc(vsi->num_xdp_txq, sizeof(*xdp_rings), GFP_KERNEL);
        if (!xdp_rings) {
                err = -ENOMEM;
                goto free_tx;
        }

        for (i = 0; i < vsi->num_xdp_txq; i++) {
                /* clone ring and setup updated count */
                xdp_rings[i] = *vsi->xdp_rings[i];
                xdp_rings[i].count = new_tx_cnt;
                xdp_rings[i].desc = NULL;
                xdp_rings[i].tx_buf = NULL;
                err = ice_setup_tx_ring(&xdp_rings[i]);
                if (err) {
                        while (i--)
                                ice_clean_tx_ring(&xdp_rings[i]);
                        kfree(xdp_rings);
                        goto free_tx;
                }
                ice_set_ring_xdp(&xdp_rings[i]);
        }

process_rx:
        if (new_rx_cnt == vsi->rx_rings[0]->count)
                goto process_link;

        /* alloc updated Rx resources */
        netdev_info(netdev, "Changing Rx descriptor count from %d to %d\n",
                    vsi->rx_rings[0]->count, new_rx_cnt);

        rx_rings = kcalloc(vsi->num_rxq, sizeof(*rx_rings), GFP_KERNEL);
        if (!rx_rings) {
                err = -ENOMEM;
                goto done;
        }

        ice_for_each_rxq(vsi, i) {
                /* clone ring and setup updated count */
                rx_rings[i] = *vsi->rx_rings[i];
                rx_rings[i].count = new_rx_cnt;
                rx_rings[i].desc = NULL;
                rx_rings[i].rx_buf = NULL;
                /* this is to allow wr32 to have something to write to
                 * during early allocation of Rx buffers
                 */
                rx_rings[i].tail = vsi->back->hw.hw_addr + PRTGEN_STATUS;

                err = ice_setup_rx_ring(&rx_rings[i]);
                if (err)
                        goto rx_unwind;

                /* allocate Rx buffers */
                err = ice_alloc_rx_bufs(&rx_rings[i],
                                        ICE_DESC_UNUSED(&rx_rings[i]));
rx_unwind:
                if (err) {
                        while (i) {
                                i--;
                                ice_free_rx_ring(&rx_rings[i]);
                        }
                        kfree(rx_rings);
                        err = -ENOMEM;
                        goto free_tx;
                }
        }

process_link:
        /* Bring interface down, copy in the new ring info, then restore the
         * interface. if VSI is up, bring it down and then back up
         */
        if (!test_and_set_bit(__ICE_DOWN, vsi->state)) {
                ice_down(vsi);

                if (tx_rings) {
                        ice_for_each_txq(vsi, i) {
                                ice_free_tx_ring(vsi->tx_rings[i]);
                                *vsi->tx_rings[i] = tx_rings[i];
                        }
                        kfree(tx_rings);
                }

                if (rx_rings) {
                        ice_for_each_rxq(vsi, i) {
                                ice_free_rx_ring(vsi->rx_rings[i]);
                                /* copy the real tail offset */
                                rx_rings[i].tail = vsi->rx_rings[i]->tail;
                                /* this is to fake out the allocation routine
                                 * into thinking it has to realloc everything
                                 * but the recycling logic will let us re-use
                                 * the buffers allocated above
                                 */
                                rx_rings[i].next_to_use = 0;
                                rx_rings[i].next_to_clean = 0;
                                rx_rings[i].next_to_alloc = 0;
                                *vsi->rx_rings[i] = rx_rings[i];
                        }
                        kfree(rx_rings);
                }

                if (xdp_rings) {
                        for (i = 0; i < vsi->num_xdp_txq; i++) {
                                ice_free_tx_ring(vsi->xdp_rings[i]);
                                *vsi->xdp_rings[i] = xdp_rings[i];
                        }
                        kfree(xdp_rings);
                }

                vsi->num_tx_desc = new_tx_cnt;
                vsi->num_rx_desc = new_rx_cnt;
                ice_up(vsi);
        }
        goto done;

free_tx:
        /* error cleanup if the Rx allocations failed after getting Tx */
        if (tx_rings) {
                ice_for_each_txq(vsi, i)
                        ice_free_tx_ring(&tx_rings[i]);
                kfree(tx_rings);
        }

done:
        clear_bit(__ICE_CFG_BUSY, pf->state);
        return err;
}

/**
 * ice_get_pauseparam - Get Flow Control status
 * @netdev: network interface device structure
 * @pause: ethernet pause (flow control) parameters
 *
 * Get requested flow control status from PHY capability.
 * If autoneg is true, then ethtool will send the ETHTOOL_GSET ioctl which
 * is handled by ice_get_link_ksettings. ice_get_link_ksettings will report
 * the negotiated Rx/Tx pause via lp_advertising.
 */
static void
ice_get_pauseparam(struct net_device *netdev, struct ethtool_pauseparam *pause)
{
        struct ice_netdev_priv *np = netdev_priv(netdev);
        struct ice_port_info *pi = np->vsi->port_info;
        struct ice_aqc_get_phy_caps_data *pcaps;
        struct ice_dcbx_cfg *dcbx_cfg;
        enum ice_status status;

        /* Initialize pause params */
        pause->rx_pause = 0;
        pause->tx_pause = 0;

        dcbx_cfg = &pi->local_dcbx_cfg;

        pcaps = kzalloc(sizeof(*pcaps), GFP_KERNEL);
        if (!pcaps)
                return;

        /* Get current PHY config */
        status = ice_aq_get_phy_caps(pi, false, ICE_AQC_REPORT_SW_CFG, pcaps,
                                     NULL);
        if (status)
                goto out;

        pause->autoneg = ice_is_phy_caps_an_enabled(pcaps) ? AUTONEG_ENABLE :
                                                             AUTONEG_DISABLE;

        if (dcbx_cfg->pfc.pfcena)
                /* PFC enabled so report LFC as off */
                goto out;