// SPDX-License-Identifier: GPL-2.0
/* Copyright(c) 2013 - 2018 Intel Corporation. */

/* ethtool support for i40e */

#include "i40e.h"
#include "i40e_diag.h"
#include "i40e_txrx_common.h"

/* ethtool statistics helpers */

/**
 * struct i40e_stats - definition for an ethtool statistic
 * @stat_string: statistic name to display in ethtool -S output
 * @sizeof_stat: the sizeof() the stat, must be no greater than sizeof(u64)
 * @stat_offset: offsetof() the stat from a base pointer
 *
 * This structure defines a statistic to be added to the ethtool stats buffer.
 * It defines a statistic as offset from a common base pointer. Stats should
 * be defined in constant arrays using the I40E_STAT macro, with every element
 * of the array using the same _type for calculating the sizeof_stat and
 * stat_offset.
 *
 * The @sizeof_stat is expected to be sizeof(u8), sizeof(u16), sizeof(u32) or
 * sizeof(u64). Other sizes are not expected and will produce a WARN_ONCE from
 * the i40e_add_ethtool_stat() helper function.
 *
 * The @stat_string is interpreted as a format string, allowing formatted
 * values to be inserted while looping over multiple structures for a given
 * statistics array. Thus, every statistic string in an array should have the
 * same type and number of format specifiers, to be formatted by variadic
 * arguments to the i40e_add_stat_string() helper function.
 **/
struct i40e_stats {
        char stat_string[ETH_GSTRING_LEN];
        int sizeof_stat;
        int stat_offset;
};

/* Helper macro to define an i40e_stat structure with proper size and type.
 * Use this when defining constant statistics arrays. Note that @_type expects
 * only a type name and is used multiple times.
 */
#define I40E_STAT(_type, _name, _stat) { \
        .stat_string = _name, \
        .sizeof_stat = FIELD_SIZEOF(_type, _stat), \
        .stat_offset = offsetof(_type, _stat) \
}

/* Helper macro for defining some statistics directly copied from the netdev
 * stats structure.
 */
#define I40E_NETDEV_STAT(_net_stat) \
        I40E_STAT(struct rtnl_link_stats64, #_net_stat, _net_stat)

/* Helper macro for defining some statistics related to queues */
#define I40E_QUEUE_STAT(_name, _stat) \
        I40E_STAT(struct i40e_ring, _name, _stat)

/* Stats associated with a Tx or Rx ring */
static const struct i40e_stats i40e_gstrings_queue_stats[] = {
        I40E_QUEUE_STAT("%s-%u.packets", stats.packets),
        I40E_QUEUE_STAT("%s-%u.bytes", stats.bytes),
};

/**
 * i40e_add_one_ethtool_stat - copy the stat into the supplied buffer
 * @data: location to store the stat value
 * @pointer: basis for where to copy from
 * @stat: the stat definition
 *
 * Copies the stat data defined by the pointer and stat structure pair into
 * the memory supplied as data. Used to implement i40e_add_ethtool_stats and
 * i40e_add_queue_stats. If the pointer is null, data will be zero'd.
 */
static void
i40e_add_one_ethtool_stat(u64 *data, void *pointer,
                          const struct i40e_stats *stat)
{
        char *p;

        if (!pointer) {
                /* ensure that the ethtool data buffer is zero'd for any stats
                 * which don't have a valid pointer.
                 */
                *data = 0;
                return;
        }

        p = (char *)pointer + stat->stat_offset;
        switch (stat->sizeof_stat) {
        case sizeof(u64):
                *data = *((u64 *)p);
                break;
        case sizeof(u32):
                *data = *((u32 *)p);
                break;
        case sizeof(u16):
                *data = *((u16 *)p);
                break;
        case sizeof(u8):
                *data = *((u8 *)p);
                break;
        default:
                WARN_ONCE(1, "unexpected stat size for %s",
                          stat->stat_string);
                *data = 0;
        }
}

/**
 * __i40e_add_ethtool_stats - copy stats into the ethtool supplied buffer
 * @data: ethtool stats buffer
 * @pointer: location to copy stats from
 * @stats: array of stats to copy
 * @size: the size of the stats definition
 *
 * Copy the stats defined by the stats array using the pointer as a base into
 * the data buffer supplied by ethtool. Updates the data pointer to point to
 * the next empty location for successive calls to __i40e_add_ethtool_stats.
 * If pointer is null, set the data values to zero and update the pointer to
 * skip these stats.
 **/
static void
__i40e_add_ethtool_stats(u64 **data, void *pointer,
                         const struct i40e_stats stats[],
                         const unsigned int size)
{
        unsigned int i;

        for (i = 0; i < size; i++)
                i40e_add_one_ethtool_stat((*data)++, pointer, &stats[i]);
}

/**
 * i40e_add_ethtool_stats - copy stats into ethtool supplied buffer
 * @data: ethtool stats buffer
 * @pointer: location where stats are stored
 * @stats: static const array of stat definitions
 *
 * Macro to ease the use of __i40e_add_ethtool_stats by taking a static
 * constant stats array and passing the ARRAY_SIZE(). This avoids typos by
 * ensuring that we pass the size associated with the given stats array.
 *
 * The parameter @stats is evaluated twice, so parameters with side effects
 * should be avoided.
 **/
#define i40e_add_ethtool_stats(data, pointer, stats) \
        __i40e_add_ethtool_stats(data, pointer, stats, ARRAY_SIZE(stats))

/**
 * i40e_add_queue_stats - copy queue statistics into supplied buffer
 * @data: ethtool stats buffer
 * @ring: the ring to copy
 *
 * Queue statistics must be copied while protected by
 * u64_stats_fetch_begin_irq, so we can't directly use i40e_add_ethtool_stats.
 * Assumes that queue stats are defined in i40e_gstrings_queue_stats. If the
 * ring pointer is null, zero out the queue stat values and update the data
 * pointer. Otherwise safely copy the stats from the ring into the supplied
 * buffer and update the data pointer when finished.
 *
 * This function expects to be called while under rcu_read_lock().
 **/
static void
i40e_add_queue_stats(u64 **data, struct i40e_ring *ring)
{
        const unsigned int size = ARRAY_SIZE(i40e_gstrings_queue_stats);
        const struct i40e_stats *stats = i40e_gstrings_queue_stats;
        unsigned int start;
        unsigned int i;

        /* To avoid invalid statistics values, ensure that we keep retrying
         * the copy until we get a consistent value according to
         * u64_stats_fetch_retry_irq. But first, make sure our ring is
         * non-null before attempting to access its syncp.
         */
        do {
                start = !ring ? 0 : u64_stats_fetch_begin_irq(&ring->syncp);
                for (i = 0; i < size; i++) {
                        i40e_add_one_ethtool_stat(&(*data)[i], ring,
                                                  &stats[i]);
                }
        } while (ring && u64_stats_fetch_retry_irq(&ring->syncp, start));

        /* Once we successfully copy the stats in, update the data pointer */
        *data += size;
}

/**
 * __i40e_add_stat_strings - copy stat strings into ethtool buffer
 * @p: ethtool supplied buffer
 * @stats: stat definitions array
 * @size: size of the stats array
 *
 * Format and copy the strings described by stats into the buffer pointed at
 * by p.
 **/
static void __i40e_add_stat_strings(u8 **p, const struct i40e_stats stats[],
                                    const unsigned int size, ...)
{
        unsigned int i;

        for (i = 0; i < size; i++) {
                va_list args;

                va_start(args, size);
                vsnprintf(*p, ETH_GSTRING_LEN, stats[i].stat_string, args);
                *p += ETH_GSTRING_LEN;
                va_end(args);
        }
}

/**
 * 40e_add_stat_strings - copy stat strings into ethtool buffer
 * @p: ethtool supplied buffer
 * @stats: stat definitions array
 *
 * Format and copy the strings described by the const static stats value into
 * the buffer pointed at by p.
 *
 * The parameter @stats is evaluated twice, so parameters with side effects
 * should be avoided. Additionally, stats must be an array such that
 * ARRAY_SIZE can be called on it.
 **/
#define i40e_add_stat_strings(p, stats, ...) \
        __i40e_add_stat_strings(p, stats, ARRAY_SIZE(stats), ## __VA_ARGS__)

#define I40E_PF_STAT(_name, _stat) \
        I40E_STAT(struct i40e_pf, _name, _stat)
#define I40E_VSI_STAT(_name, _stat) \
        I40E_STAT(struct i40e_vsi, _name, _stat)
#define I40E_VEB_STAT(_name, _stat) \
        I40E_STAT(struct i40e_veb, _name, _stat)
#define I40E_PFC_STAT(_name, _stat) \
        I40E_STAT(struct i40e_pfc_stats, _name, _stat)
#define I40E_QUEUE_STAT(_name, _stat) \
        I40E_STAT(struct i40e_ring, _name, _stat)

static const struct i40e_stats i40e_gstrings_net_stats[] = {
        I40E_NETDEV_STAT(rx_packets),
        I40E_NETDEV_STAT(tx_packets),
        I40E_NETDEV_STAT(rx_bytes),
        I40E_NETDEV_STAT(tx_bytes),
        I40E_NETDEV_STAT(rx_errors),
        I40E_NETDEV_STAT(tx_errors),
        I40E_NETDEV_STAT(rx_dropped),
        I40E_NETDEV_STAT(tx_dropped),
        I40E_NETDEV_STAT(collisions),
        I40E_NETDEV_STAT(rx_length_errors),
        I40E_NETDEV_STAT(rx_crc_errors),
};

static const struct i40e_stats i40e_gstrings_veb_stats[] = {
        I40E_VEB_STAT("veb.rx_bytes", stats.rx_bytes),
        I40E_VEB_STAT("veb.tx_bytes", stats.tx_bytes),
        I40E_VEB_STAT("veb.rx_unicast", stats.rx_unicast),
        I40E_VEB_STAT("veb.tx_unicast", stats.tx_unicast),
        I40E_VEB_STAT("veb.rx_multicast", stats.rx_multicast),
        I40E_VEB_STAT("veb.tx_multicast", stats.tx_multicast),
        I40E_VEB_STAT("veb.rx_broadcast", stats.rx_broadcast),
        I40E_VEB_STAT("veb.tx_broadcast", stats.tx_broadcast),
        I40E_VEB_STAT("veb.rx_discards", stats.rx_discards),
        I40E_VEB_STAT("veb.tx_discards", stats.tx_discards),
        I40E_VEB_STAT("veb.tx_errors", stats.tx_errors),
        I40E_VEB_STAT("veb.rx_unknown_protocol", stats.rx_unknown_protocol),
};

static const struct i40e_stats i40e_gstrings_veb_tc_stats[] = {
        I40E_VEB_STAT("veb.tc_%u_tx_packets", tc_stats.tc_tx_packets),
        I40E_VEB_STAT("veb.tc_%u_tx_bytes", tc_stats.tc_tx_bytes),
        I40E_VEB_STAT("veb.tc_%u_rx_packets", tc_stats.tc_rx_packets),
        I40E_VEB_STAT("veb.tc_%u_rx_bytes", tc_stats.tc_rx_bytes),
};

static const struct i40e_stats i40e_gstrings_misc_stats[] = {
        I40E_VSI_STAT("rx_unicast", eth_stats.rx_unicast),
        I40E_VSI_STAT("tx_unicast", eth_stats.tx_unicast),
        I40E_VSI_STAT("rx_multicast", eth_stats.rx_multicast),
        I40E_VSI_STAT("tx_multicast", eth_stats.tx_multicast),
        I40E_VSI_STAT("rx_broadcast", eth_stats.rx_broadcast),
        I40E_VSI_STAT("tx_broadcast", eth_stats.tx_broadcast),
        I40E_VSI_STAT("rx_unknown_protocol", eth_stats.rx_unknown_protocol),
        I40E_VSI_STAT("tx_linearize", tx_linearize),
        I40E_VSI_STAT("tx_force_wb", tx_force_wb),
        I40E_VSI_STAT("tx_busy", tx_busy),
        I40E_VSI_STAT("rx_alloc_fail", rx_buf_failed),
        I40E_VSI_STAT("rx_pg_alloc_fail", rx_page_failed),
};

/* These PF_STATs might look like duplicates of some NETDEV_STATs,
 * but they are separate.  This device supports Virtualization, and
 * as such might have several netdevs supporting VMDq and FCoE going
 * through a single port.  The NETDEV_STATs are for individual netdevs
 * seen at the top of the stack, and the PF_STATs are for the physical
 * function at the bottom of the stack hosting those netdevs.
 *
 * The PF_STATs are appended to the netdev stats only when ethtool -S
 * is queried on the base PF netdev, not on the VMDq or FCoE netdev.
 */
static const struct i40e_stats i40e_gstrings_stats[] = {
        I40E_PF_STAT("port.rx_bytes", stats.eth.rx_bytes),
        I40E_PF_STAT("port.tx_bytes", stats.eth.tx_bytes),
        I40E_PF_STAT("port.rx_unicast", stats.eth.rx_unicast),
        I40E_PF_STAT("port.tx_unicast", stats.eth.tx_unicast),
        I40E_PF_STAT("port.rx_multicast", stats.eth.rx_multicast),
        I40E_PF_STAT("port.tx_multicast", stats.eth.tx_multicast),
        I40E_PF_STAT("port.rx_broadcast", stats.eth.rx_broadcast),
        I40E_PF_STAT("port.tx_broadcast", stats.eth.tx_broadcast),
        I40E_PF_STAT("port.tx_errors", stats.eth.tx_errors),
        I40E_PF_STAT("port.rx_dropped", stats.eth.rx_discards),
        I40E_PF_STAT("port.tx_dropped_link_down", stats.tx_dropped_link_down),
        I40E_PF_STAT("port.rx_crc_errors", stats.crc_errors),
        I40E_PF_STAT("port.illegal_bytes", stats.illegal_bytes),
        I40E_PF_STAT("port.mac_local_faults", stats.mac_local_faults),
        I40E_PF_STAT("port.mac_remote_faults", stats.mac_remote_faults),
        I40E_PF_STAT("port.tx_timeout", tx_timeout_count),
        I40E_PF_STAT("port.rx_csum_bad", hw_csum_rx_error),
        I40E_PF_STAT("port.rx_length_errors", stats.rx_length_errors),
        I40E_PF_STAT("port.link_xon_rx", stats.link_xon_rx),
        I40E_PF_STAT("port.link_xoff_rx", stats.link_xoff_rx),
        I40E_PF_STAT("port.link_xon_tx", stats.link_xon_tx),
        I40E_PF_STAT("port.link_xoff_tx", stats.link_xoff_tx),
        I40E_PF_STAT("port.rx_size_64", stats.rx_size_64),
        I40E_PF_STAT("port.rx_size_127", stats.rx_size_127),
        I40E_PF_STAT("port.rx_size_255", stats.rx_size_255),
        I40E_PF_STAT("port.rx_size_511", stats.rx_size_511),
        I40E_PF_STAT("port.rx_size_1023", stats.rx_size_1023),
        I40E_PF_STAT("port.rx_size_1522", stats.rx_size_1522),
        I40E_PF_STAT("port.rx_size_big", stats.rx_size_big),
        I40E_PF_STAT("port.tx_size_64", stats.tx_size_64),
        I40E_PF_STAT("port.tx_size_127", stats.tx_size_127),
        I40E_PF_STAT("port.tx_size_255", stats.tx_size_255),
        I40E_PF_STAT("port.tx_size_511", stats.tx_size_511),
        I40E_PF_STAT("port.tx_size_1023", stats.tx_size_1023),
        I40E_PF_STAT("port.tx_size_1522", stats.tx_size_1522),
        I40E_PF_STAT("port.tx_size_big", stats.tx_size_big),
        I40E_PF_STAT("port.rx_undersize", stats.rx_undersize),
        I40E_PF_STAT("port.rx_fragments", stats.rx_fragments),
        I40E_PF_STAT("port.rx_oversize", stats.rx_oversize),
        I40E_PF_STAT("port.rx_jabber", stats.rx_jabber),
        I40E_PF_STAT("port.VF_admin_queue_requests", vf_aq_requests),
        I40E_PF_STAT("port.arq_overflows", arq_overflows),
        I40E_PF_STAT("port.tx_hwtstamp_timeouts", tx_hwtstamp_timeouts),
        I40E_PF_STAT("port.rx_hwtstamp_cleared", rx_hwtstamp_cleared),
        I40E_PF_STAT("port.tx_hwtstamp_skipped", tx_hwtstamp_skipped),
        I40E_PF_STAT("port.fdir_flush_cnt", fd_flush_cnt),
        I40E_PF_STAT("port.fdir_atr_match", stats.fd_atr_match),
        I40E_PF_STAT("port.fdir_atr_tunnel_match", stats.fd_atr_tunnel_match),
        I40E_PF_STAT("port.fdir_atr_status", stats.fd_atr_status),
        I40E_PF_STAT("port.fdir_sb_match", stats.fd_sb_match),
        I40E_PF_STAT("port.fdir_sb_status", stats.fd_sb_status),

        /* LPI stats */
        I40E_PF_STAT("port.tx_lpi_status", stats.tx_lpi_status),
        I40E_PF_STAT("port.rx_lpi_status", stats.rx_lpi_status),
        I40E_PF_STAT("port.tx_lpi_count", stats.tx_lpi_count),
        I40E_PF_STAT("port.rx_lpi_count", stats.rx_lpi_count),
};

struct i40e_pfc_stats {
        u64 priority_xon_rx;
        u64 priority_xoff_rx;
        u64 priority_xon_tx;
        u64 priority_xoff_tx;
        u64 priority_xon_2_xoff;
};

static const struct i40e_stats i40e_gstrings_pfc_stats[] = {
        I40E_PFC_STAT("port.tx_priority_%u_xon_tx", priority_xon_tx),
        I40E_PFC_STAT("port.tx_priority_%u_xoff_tx", priority_xoff_tx),
        I40E_PFC_STAT("port.rx_priority_%u_xon_rx", priority_xon_rx),
        I40E_PFC_STAT("port.rx_priority_%u_xoff_rx", priority_xoff_rx),
        I40E_PFC_STAT("port.rx_priority_%u_xon_2_xoff", priority_xon_2_xoff),
};

#define I40E_NETDEV_STATS_LEN   ARRAY_SIZE(i40e_gstrings_net_stats)

#define I40E_MISC_STATS_LEN     ARRAY_SIZE(i40e_gstrings_misc_stats)

#define I40E_VSI_STATS_LEN      (I40E_NETDEV_STATS_LEN + I40E_MISC_STATS_LEN)

#define I40E_PFC_STATS_LEN      (ARRAY_SIZE(i40e_gstrings_pfc_stats) * \
                                 I40E_MAX_USER_PRIORITY)

#define I40E_VEB_STATS_LEN      (ARRAY_SIZE(i40e_gstrings_veb_stats) + \
                                 (ARRAY_SIZE(i40e_gstrings_veb_tc_stats) * \
                                  I40E_MAX_TRAFFIC_CLASS))

#define I40E_GLOBAL_STATS_LEN   ARRAY_SIZE(i40e_gstrings_stats)

#define I40E_PF_STATS_LEN       (I40E_GLOBAL_STATS_LEN + \
                                 I40E_PFC_STATS_LEN + \
                                 I40E_VEB_STATS_LEN + \
                                 I40E_VSI_STATS_LEN)

/* Length of stats for a single queue */
#define I40E_QUEUE_STATS_LEN    ARRAY_SIZE(i40e_gstrings_queue_stats)

enum i40e_ethtool_test_id {
        I40E_ETH_TEST_REG = 0,
        I40E_ETH_TEST_EEPROM,
        I40E_ETH_TEST_INTR,
        I40E_ETH_TEST_LINK,
};

static const char i40e_gstrings_test[][ETH_GSTRING_LEN] = {
        "Register test  (offline)",
        "Eeprom test    (offline)",
        "Interrupt test (offline)",
        "Link test   (on/offline)"
};

#define I40E_TEST_LEN (sizeof(i40e_gstrings_test) / ETH_GSTRING_LEN)

struct i40e_priv_flags {
        char flag_string[ETH_GSTRING_LEN];
        u64 flag;
        bool read_only;
};

#define I40E_PRIV_FLAG(_name, _flag, _read_only) { \
        .flag_string = _name, \
        .flag = _flag, \
        .read_only = _read_only, \
}

static const struct i40e_priv_flags i40e_gstrings_priv_flags[] = {
        /* NOTE: MFP setting cannot be changed */
        I40E_PRIV_FLAG("MFP", I40E_FLAG_MFP_ENABLED, 1),
        I40E_PRIV_FLAG("LinkPolling", I40E_FLAG_LINK_POLLING_ENABLED, 0),
        I40E_PRIV_FLAG("flow-director-atr", I40E_FLAG_FD_ATR_ENABLED, 0),
        I40E_PRIV_FLAG("veb-stats", I40E_FLAG_VEB_STATS_ENABLED, 0),
        I40E_PRIV_FLAG("hw-atr-eviction", I40E_FLAG_HW_ATR_EVICT_ENABLED, 0),
        I40E_PRIV_FLAG("link-down-on-close",
                       I40E_FLAG_LINK_DOWN_ON_CLOSE_ENABLED, 0),
        I40E_PRIV_FLAG("legacy-rx", I40E_FLAG_LEGACY_RX, 0),
        I40E_PRIV_FLAG("disable-source-pruning",
                       I40E_FLAG_SOURCE_PRUNING_DISABLED, 0),
        I40E_PRIV_FLAG("disable-fw-lldp", I40E_FLAG_DISABLE_FW_LLDP, 0),
        I40E_PRIV_FLAG("rs-fec", I40E_FLAG_RS_FEC, 0),
        I40E_PRIV_FLAG("base-r-fec", I40E_FLAG_BASE_R_FEC, 0),
};

#define I40E_PRIV_FLAGS_STR_LEN ARRAY_SIZE(i40e_gstrings_priv_flags)

/* Private flags with a global effect, restricted to PF 0 */
static const struct i40e_priv_flags i40e_gl_gstrings_priv_flags[] = {
        I40E_PRIV_FLAG("vf-true-promisc-support",
                       I40E_FLAG_TRUE_PROMISC_SUPPORT, 0),
};

#define I40E_GL_PRIV_FLAGS_STR_LEN ARRAY_SIZE(i40e_gl_gstrings_priv_flags)

/**
 * i40e_partition_setting_complaint - generic complaint for MFP restriction
 * @pf: the PF struct
 **/
static void i40e_partition_setting_complaint(struct i40e_pf *pf)
{
        dev_info(&pf->pdev->dev,
                 "The link settings are allowed to be changed only from the first partition of a given port. Please switch to the first partition in order to change the setting.\n");
}

/**
 * i40e_phy_type_to_ethtool - convert the phy_types to ethtool link modes
 * @pf: PF struct with phy_types
 * @ks: ethtool link ksettings struct to fill out
 *
 **/
static void i40e_phy_type_to_ethtool(struct i40e_pf *pf,
                                     struct ethtool_link_ksettings *ks)
{
        struct i40e_link_status *hw_link_info = &pf->hw.phy.link_info;
        u64 phy_types = pf->hw.phy.phy_types;

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

        if (phy_types & I40E_CAP_PHY_TYPE_SGMII) {
                ethtool_link_ksettings_add_link_mode(ks, supported,
                                                     1000baseT_Full);
                if (hw_link_info->requested_speeds & I40E_LINK_SPEED_1GB)
                        ethtool_link_ksettings_add_link_mode(ks, advertising,
                                                             1000baseT_Full);
                if (pf->hw_features & I40E_HW_100M_SGMII_CAPABLE) {
                        ethtool_link_ksettings_add_link_mode(ks, supported,
                                                             100baseT_Full);
                        ethtool_link_ksettings_add_link_mode(ks, advertising,
                                                             100baseT_Full);
                }
        }
        if (phy_types & I40E_CAP_PHY_TYPE_XAUI ||
            phy_types & I40E_CAP_PHY_TYPE_XFI ||
            phy_types & I40E_CAP_PHY_TYPE_SFI ||
            phy_types & I40E_CAP_PHY_TYPE_10GBASE_SFPP_CU ||
            phy_types & I40E_CAP_PHY_TYPE_10GBASE_AOC) {
                ethtool_link_ksettings_add_link_mode(ks, supported,
                                                     10000baseT_Full);
                if (hw_link_info->requested_speeds & I40E_LINK_SPEED_10GB)
                        ethtool_link_ksettings_add_link_mode(ks, advertising,
                                                             10000baseT_Full);
        }
        if (phy_types & I40E_CAP_PHY_TYPE_10GBASE_T) {
                ethtool_link_ksettings_add_link_mode(ks, supported,
                                                     10000baseT_Full);
                if (hw_link_info->requested_speeds & I40E_LINK_SPEED_10GB)
                        ethtool_link_ksettings_add_link_mode(ks, advertising,
                                                             10000baseT_Full);
        }
        if (phy_types & I40E_CAP_PHY_TYPE_2_5GBASE_T) {
                ethtool_link_ksettings_add_link_mode(ks, supported,
                                                     2500baseT_Full);
                if (hw_link_info->requested_speeds & I40E_LINK_SPEED_2_5GB)
                        ethtool_link_ksettings_add_link_mode(ks, advertising,
                                                             2500baseT_Full);
        }
        if (phy_types & I40E_CAP_PHY_TYPE_5GBASE_T) {
                ethtool_link_ksettings_add_link_mode(ks, supported,
                                                     5000baseT_Full);
                if (hw_link_info->requested_speeds & I40E_LINK_SPEED_5GB)
                        ethtool_link_ksettings_add_link_mode(ks, advertising,
                                                             5000baseT_Full);
        }
        if (phy_types & I40E_CAP_PHY_TYPE_XLAUI ||
            phy_types & I40E_CAP_PHY_TYPE_XLPPI ||
            phy_types & I40E_CAP_PHY_TYPE_40GBASE_AOC)
                ethtool_link_ksettings_add_link_mode(ks, supported,
                                                     40000baseCR4_Full);
        if (phy_types & I40E_CAP_PHY_TYPE_40GBASE_CR4_CU ||
            phy_types & I40E_CAP_PHY_TYPE_40GBASE_CR4) {
                ethtool_link_ksettings_add_link_mode(ks, supported,
                                                     40000baseCR4_Full);
                if (hw_link_info->requested_speeds & I40E_LINK_SPEED_40GB)
                        ethtool_link_ksettings_add_link_mode(ks, advertising,
                                                             40000baseCR4_Full);
        }
        if (phy_types & I40E_CAP_PHY_TYPE_100BASE_TX) {
                ethtool_link_ksettings_add_link_mode(ks, supported,
                                                     100baseT_Full);
                if (hw_link_info->requested_speeds & I40E_LINK_SPEED_100MB)
                        ethtool_link_ksettings_add_link_mode(ks, advertising,
                                                             100baseT_Full);
        }
        if (phy_types & I40E_CAP_PHY_TYPE_1000BASE_T) {
                ethtool_link_ksettings_add_link_mode(ks, supported,
                                                     1000baseT_Full);
                if (hw_link_info->requested_speeds & I40E_LINK_SPEED_1GB)
                        ethtool_link_ksettings_add_link_mode(ks, advertising,
                                                             1000baseT_Full);
        }
        if (phy_types & I40E_CAP_PHY_TYPE_40GBASE_SR4) {
                ethtool_link_ksettings_add_link_mode(ks, supported,
                                                     40000baseSR4_Full);
                ethtool_link_ksettings_add_link_mode(ks, advertising,
                                                     40000baseSR4_Full);
        }
        if (phy_types & I40E_CAP_PHY_TYPE_40GBASE_LR4) {
                ethtool_link_ksettings_add_link_mode(ks, supported,
                                                     40000baseLR4_Full);
                ethtool_link_ksettings_add_link_mode(ks, advertising,
                                                     40000baseLR4_Full);
        }
        if (phy_types & I40E_CAP_PHY_TYPE_40GBASE_KR4) {
                ethtool_link_ksettings_add_link_mode(ks, supported,
                                                     40000baseKR4_Full);
                ethtool_link_ksettings_add_link_mode(ks, advertising,
                                                     40000baseKR4_Full);
        }
        if (phy_types & I40E_CAP_PHY_TYPE_20GBASE_KR2) {
                ethtool_link_ksettings_add_link_mode(ks, supported,
                                                     20000baseKR2_Full);
                if (hw_link_info->requested_speeds & I40E_LINK_SPEED_20GB)
                        ethtool_link_ksettings_add_link_mode(ks, advertising,
                                                             20000baseKR2_Full);
        }
        if (phy_types & I40E_CAP_PHY_TYPE_10GBASE_KX4) {
                ethtool_link_ksettings_add_link_mode(ks, supported,
                                                     10000baseKX4_Full);
                if (hw_link_info->requested_speeds & I40E_LINK_SPEED_10GB)
                        ethtool_link_ksettings_add_link_mode(ks, advertising,
                                                             10000baseKX4_Full);
        }
        if (phy_types & I40E_CAP_PHY_TYPE_10GBASE_KR &&
            !(pf->hw_features & I40E_HW_HAVE_CRT_RETIMER)) {
                ethtool_link_ksettings_add_link_mode(ks, supported,
                                                     10000baseKR_Full);
                if (hw_link_info->requested_speeds & I40E_LINK_SPEED_10GB)
                        ethtool_link_ksettings_add_link_mode(ks, advertising,
                                                             10000baseKR_Full);
        }
        if (phy_types & I40E_CAP_PHY_TYPE_1000BASE_KX &&
            !(pf->hw_features & I40E_HW_HAVE_CRT_RETIMER)) {
                ethtool_link_ksettings_add_link_mode(ks, supported,
                                                     1000baseKX_Full);
                if (hw_link_info->requested_speeds & I40E_LINK_SPEED_1GB)
                        ethtool_link_ksettings_add_link_mode(ks, advertising,
                                                             1000baseKX_Full);
        }
        /* need to add 25G PHY types */
        if (phy_types & I40E_CAP_PHY_TYPE_25GBASE_KR) {
                ethtool_link_ksettings_add_link_mode(ks, supported,
                                                     25000baseKR_Full);
                if (hw_link_info->requested_speeds & I40E_LINK_SPEED_25GB)
                        ethtool_link_ksettings_add_link_mode(ks, advertising,
                                                             25000baseKR_Full);
        }
        if (phy_types & I40E_CAP_PHY_TYPE_25GBASE_CR) {
                ethtool_link_ksettings_add_link_mode(ks, supported,
                                                     25000baseCR_Full);
                if (hw_link_info->requested_speeds & I40E_LINK_SPEED_25GB)
                        ethtool_link_ksettings_add_link_mode(ks, advertising,
                                                             25000baseCR_Full);
        }
        if (phy_types & I40E_CAP_PHY_TYPE_25GBASE_SR ||
            phy_types & I40E_CAP_PHY_TYPE_25GBASE_LR) {
                ethtool_link_ksettings_add_link_mode(ks, supported,
                                                     25000baseSR_Full);
                if (hw_link_info->requested_speeds & I40E_LINK_SPEED_25GB)
                        ethtool_link_ksettings_add_link_mode(ks, advertising,
                                                             25000baseSR_Full);
        }
        if (phy_types & I40E_CAP_PHY_TYPE_25GBASE_AOC ||
            phy_types & I40E_CAP_PHY_TYPE_25GBASE_ACC) {
                ethtool_link_ksettings_add_link_mode(ks, supported,
                                                     25000baseCR_Full);
                if (hw_link_info->requested_speeds & I40E_LINK_SPEED_25GB)
                        ethtool_link_ksettings_add_link_mode(ks, advertising,
                                                             25000baseCR_Full);
        }
        if (phy_types & I40E_CAP_PHY_TYPE_25GBASE_KR ||
            phy_types & I40E_CAP_PHY_TYPE_25GBASE_CR ||
            phy_types & I40E_CAP_PHY_TYPE_25GBASE_SR ||
            phy_types & I40E_CAP_PHY_TYPE_25GBASE_LR ||
            phy_types & I40E_CAP_PHY_TYPE_25GBASE_AOC ||
            phy_types & I40E_CAP_PHY_TYPE_25GBASE_ACC) {
                ethtool_link_ksettings_add_link_mode(ks, supported, FEC_NONE);
                ethtool_link_ksettings_add_link_mode(ks, supported, FEC_RS);
                ethtool_link_ksettings_add_link_mode(ks, supported, FEC_BASER);
                if (hw_link_info->requested_speeds & I40E_LINK_SPEED_25GB) {
                        ethtool_link_ksettings_add_link_mode(ks, advertising,
                                                             FEC_NONE);
                        ethtool_link_ksettings_add_link_mode(ks, advertising,
                                                             FEC_RS);
                        ethtool_link_ksettings_add_link_mode(ks, advertising,
                                                             FEC_BASER);
                }
        }
        /* need to add new 10G PHY types */
        if (phy_types & I40E_CAP_PHY_TYPE_10GBASE_CR1 ||
            phy_types & I40E_CAP_PHY_TYPE_10GBASE_CR1_CU) {
                ethtool_link_ksettings_add_link_mode(ks, supported,
                                                     10000baseCR_Full);
                if (hw_link_info->requested_speeds & I40E_LINK_SPEED_10GB)
                        ethtool_link_ksettings_add_link_mode(ks, advertising,
                                                             10000baseCR_Full);
        }
        if (phy_types & I40E_CAP_PHY_TYPE_10GBASE_SR) {
                ethtool_link_ksettings_add_link_mode(ks, supported,
                                                     10000baseSR_Full);
                if (hw_link_info->requested_speeds & I40E_LINK_SPEED_10GB)
                        ethtool_link_ksettings_add_link_mode(ks, advertising,
                                                             10000baseSR_Full);
        }
        if (phy_types & I40E_CAP_PHY_TYPE_10GBASE_LR) {
                ethtool_link_ksettings_add_link_mode(ks, supported,
                                                     10000baseLR_Full);
                if (hw_link_info->requested_speeds & I40E_LINK_SPEED_10GB)
                        ethtool_link_ksettings_add_link_mode(ks, advertising,
                                                             10000baseLR_Full);
        }
        if (phy_types & I40E_CAP_PHY_TYPE_1000BASE_SX ||
            phy_types & I40E_CAP_PHY_TYPE_1000BASE_LX ||
            phy_types & I40E_CAP_PHY_TYPE_1000BASE_T_OPTICAL) {
                ethtool_link_ksettings_add_link_mode(ks, supported,
                                                     1000baseX_Full);
                if (hw_link_info->requested_speeds & I40E_LINK_SPEED_1GB)
                        ethtool_link_ksettings_add_link_mode(ks, advertising,
                                                             1000baseX_Full);
        }
        /* Autoneg PHY types */
        if (phy_types & I40E_CAP_PHY_TYPE_SGMII ||
            phy_types & I40E_CAP_PHY_TYPE_40GBASE_KR4 ||
            phy_types & I40E_CAP_PHY_TYPE_40GBASE_CR4_CU ||
            phy_types & I40E_CAP_PHY_TYPE_40GBASE_CR4 ||
            phy_types & I40E_CAP_PHY_TYPE_25GBASE_SR ||
            phy_types & I40E_CAP_PHY_TYPE_25GBASE_LR ||
            phy_types & I40E_CAP_PHY_TYPE_25GBASE_KR ||
            phy_types & I40E_CAP_PHY_TYPE_25GBASE_CR ||
            phy_types & I40E_CAP_PHY_TYPE_20GBASE_KR2 ||
            phy_types & I40E_CAP_PHY_TYPE_10GBASE_SR ||
            phy_types & I40E_CAP_PHY_TYPE_10GBASE_LR ||
            phy_types & I40E_CAP_PHY_TYPE_10GBASE_KX4 ||
            phy_types & I40E_CAP_PHY_TYPE_10GBASE_KR ||
            phy_types & I40E_CAP_PHY_TYPE_10GBASE_CR1_CU ||
            phy_types & I40E_CAP_PHY_TYPE_10GBASE_CR1 ||
            phy_types & I40E_CAP_PHY_TYPE_10GBASE_T ||
            phy_types & I40E_CAP_PHY_TYPE_5GBASE_T ||
            phy_types & I40E_CAP_PHY_TYPE_2_5GBASE_T ||
            phy_types & I40E_CAP_PHY_TYPE_1000BASE_T_OPTICAL ||
            phy_types & I40E_CAP_PHY_TYPE_1000BASE_T ||
            phy_types & I40E_CAP_PHY_TYPE_1000BASE_SX ||
            phy_types & I40E_CAP_PHY_TYPE_1000BASE_LX ||
            phy_types & I40E_CAP_PHY_TYPE_1000BASE_KX ||
            phy_types & I40E_CAP_PHY_TYPE_100BASE_TX) {
                ethtool_link_ksettings_add_link_mode(ks, supported,
                                                     Autoneg);
                ethtool_link_ksettings_add_link_mode(ks, advertising,
                                                     Autoneg);
        }
}

/**
 * i40e_get_settings_link_up_fec - Get the FEC mode encoding from mask
 * @req_fec_info: mask request FEC info
 * @ks: ethtool ksettings to fill in
 **/
static void i40e_get_settings_link_up_fec(u8 req_fec_info,
                                          struct ethtool_link_ksettings *ks)
{
        ethtool_link_ksettings_add_link_mode(ks, supported, FEC_NONE);
        ethtool_link_ksettings_add_link_mode(ks, supported, FEC_RS);
        ethtool_link_ksettings_add_link_mode(ks, supported, FEC_BASER);

        if (I40E_AQ_SET_FEC_REQUEST_RS & req_fec_info) {
                ethtool_link_ksettings_add_link_mode(ks, advertising, FEC_RS);
        } else if (I40E_AQ_SET_FEC_REQUEST_KR & req_fec_info) {
                ethtool_link_ksettings_add_link_mode(ks, advertising,
                                                     FEC_BASER);
        } else {
                ethtool_link_ksettings_add_link_mode(ks, advertising,
                                                     FEC_NONE);
                if (I40E_AQ_SET_FEC_AUTO & req_fec_info) {
                        ethtool_link_ksettings_add_link_mode(ks, advertising,
                                                             FEC_RS);
                        ethtool_link_ksettings_add_link_mode(ks, advertising,
                                                             FEC_BASER);
                }
        }
}

/**
 * i40e_get_settings_link_up - Get the Link settings for when link is up
 * @hw: hw structure
 * @ks: ethtool ksettings to fill in
 * @netdev: network interface device structure
 * @pf: pointer to physical function struct
 **/
static void i40e_get_settings_link_up(struct i40e_hw *hw,
                                      struct ethtool_link_ksettings *ks,
                                      struct net_device *netdev,
                                      struct i40e_pf *pf)
{
        struct i40e_link_status *hw_link_info = &hw->phy.link_info;
        struct ethtool_link_ksettings cap_ksettings;
        u32 link_speed = hw_link_info->link_speed;

        /* Initialize supported and advertised settings based on phy settings */
        switch (hw_link_info->phy_type) {
        case I40E_PHY_TYPE_40GBASE_CR4:
        case I40E_PHY_TYPE_40GBASE_CR4_CU:
                ethtool_link_ksettings_add_link_mode(ks, supported, Autoneg);
                ethtool_link_ksettings_add_link_mode(ks, supported,
                                                     40000baseCR4_Full);
                ethtool_link_ksettings_add_link_mode(ks, advertising, Autoneg);
                ethtool_link_ksettings_add_link_mode(ks, advertising,
                                                     40000baseCR4_Full);
                break;
        case I40E_PHY_TYPE_XLAUI:
        case I40E_PHY_TYPE_XLPPI:
        case I40E_PHY_TYPE_40GBASE_AOC:
                ethtool_link_ksettings_add_link_mode(ks, supported,
                                                     40000baseCR4_Full);
                ethtool_link_ksettings_add_link_mode(ks, advertising,
                                                     40000baseCR4_Full);
                break;
        case I40E_PHY_TYPE_40GBASE_SR4:
                ethtool_link_ksettings_add_link_mode(ks, supported,
                                                     40000baseSR4_Full);
                ethtool_link_ksettings_add_link_mode(ks, advertising,
                                                     40000baseSR4_Full);
                break;
        case I40E_PHY_TYPE_40GBASE_LR4:
                ethtool_link_ksettings_add_link_mode(ks, supported,
                                                     40000baseLR4_Full);
                ethtool_link_ksettings_add_link_mode(ks, advertising,
                                                     40000baseLR4_Full);
                break;
        case I40E_PHY_TYPE_25GBASE_SR:
        case I40E_PHY_TYPE_25GBASE_LR:
        case I40E_PHY_TYPE_10GBASE_SR:
        case I40E_PHY_TYPE_10GBASE_LR:
        case I40E_PHY_TYPE_1000BASE_SX:
        case I40E_PHY_TYPE_1000BASE_LX:
                ethtool_link_ksettings_add_link_mode(ks, supported, Autoneg);
                ethtool_link_ksettings_add_link_mode(ks, advertising, Autoneg);
                ethtool_link_ksettings_add_link_mode(ks, supported,
                                                     25000baseSR_Full);
                ethtool_link_ksettings_add_link_mode(ks, advertising,
                                                     25000baseSR_Full);
                i40e_get_settings_link_up_fec(hw_link_info->req_fec_info, ks);
                ethtool_link_ksettings_add_link_mode(ks, supported,
                                                     10000baseSR_Full);
                ethtool_link_ksettings_add_link_mode(ks, advertising,
                                                     10000baseSR_Full);
                ethtool_link_ksettings_add_link_mode(ks, supported,
                                                     10000baseLR_Full);
                ethtool_link_ksettings_add_link_mode(ks, advertising,
                                                     10000baseLR_Full);
                ethtool_link_ksettings_add_link_mode(ks, supported,
                                                     1000baseX_Full);
                ethtool_link_ksettings_add_link_mode(ks, advertising,
                                                     1000baseX_Full);
                ethtool_link_ksettings_add_link_mode(ks, supported,
                                                     10000baseT_Full);
                if (hw_link_info->module_type[2] &
                    I40E_MODULE_TYPE_1000BASE_SX ||
                    hw_link_info->module_type[2] &
                    I40E_MODULE_TYPE_1000BASE_LX) {
                        ethtool_link_ksettings_add_link_mode(ks, supported,
                                                             1000baseT_Full);
                        if (hw_link_info->requested_speeds &
                            I40E_LINK_SPEED_1GB)
                                ethtool_link_ksettings_add_link_mode(
                                     ks, advertising, 1000baseT_Full);
                }
                if (hw_link_info->requested_speeds & I40E_LINK_SPEED_10GB)
                        ethtool_link_ksettings_add_link_mode(ks, advertising,
                                                             10000baseT_Full);
                break;
        case I40E_PHY_TYPE_10GBASE_T:
        case I40E_PHY_TYPE_5GBASE_T:
        case I40E_PHY_TYPE_2_5GBASE_T:
        case I40E_PHY_TYPE_1000BASE_T:
        case I40E_PHY_TYPE_100BASE_TX:
                ethtool_link_ksettings_add_link_mode(ks, supported, Autoneg);
                ethtool_link_ksettings_add_link_mode(ks, supported,
                                                     10000baseT_Full);
                ethtool_link_ksettings_add_link_mode(ks, supported,
                                                     5000baseT_Full);
                ethtool_link_ksettings_add_link_mode(ks, supported,
                                                     2500baseT_Full);
                ethtool_link_ksettings_add_link_mode(ks, supported,
                                                     1000baseT_Full);
                ethtool_link_ksettings_add_link_mode(ks, supported,
                                                     100baseT_Full);
                ethtool_link_ksettings_add_link_mode(ks, advertising, Autoneg);
                if (hw_link_info->requested_speeds & I40E_LINK_SPEED_10GB)
                        ethtool_link_ksettings_add_link_mode(ks, advertising,
                                                             10000baseT_Full);
                if (hw_link_info->requested_speeds & I40E_LINK_SPEED_5GB)
                        ethtool_link_ksettings_add_link_mode(ks, advertising,
                                                             5000baseT_Full);
                if (hw_link_info->requested_speeds & I40E_LINK_SPEED_2_5GB)
                        ethtool_link_ksettings_add_link_mode(ks, advertising,
                                                             2500baseT_Full);
                if (hw_link_info->requested_speeds & I40E_LINK_SPEED_1GB)
                        ethtool_link_ksettings_add_link_mode(ks, advertising,
                                                             1000baseT_Full);
                if (hw_link_info->requested_speeds & I40E_LINK_SPEED_100MB)
                        ethtool_link_ksettings_add_link_mode(ks, advertising,
                                                             100baseT_Full);
                break;
        case I40E_PHY_TYPE_1000BASE_T_OPTICAL:
                ethtool_link_ksettings_add_link_mode(ks, supported, Autoneg);
                ethtool_link_ksettings_add_link_mode(ks, supported,
                                                     1000baseT_Full);
                ethtool_link_ksettings_add_link_mode(ks, advertising, Autoneg);
                ethtool_link_ksettings_add_link_mode(ks, advertising,
                                                     1000baseT_Full);
                break;
        case I40E_PHY_TYPE_10GBASE_CR1_CU:
        case I40E_PHY_TYPE_10GBASE_CR1:
                ethtool_link_ksettings_add_link_mode(ks, supported, Autoneg);
                ethtool_link_ksettings_add_link_mode(ks, supported,
                                                     10000baseT_Full);
                ethtool_link_ksettings_add_link_mode(ks, advertising, Autoneg);
                ethtool_link_ksettings_add_link_mode(ks, advertising,
                                                     10000baseT_Full);
                break;
        case I40E_PHY_TYPE_XAUI:
        case I40E_PHY_TYPE_XFI:
        case I40E_PHY_TYPE_SFI:
        case I40E_PHY_TYPE_10GBASE_SFPP_CU:
        case I40E_PHY_TYPE_10GBASE_AOC:
                ethtool_link_ksettings_add_link_mode(ks, supported,
                                                     10000baseT_Full);
                if (hw_link_info->requested_speeds & I40E_LINK_SPEED_10GB)
                        ethtool_link_ksettings_add_link_mode(ks, advertising,
                                                             10000baseT_Full);
                break;
        case I40E_PHY_TYPE_SGMII:
                ethtool_link_ksettings_add_link_mode(ks, supported, Autoneg);
                ethtool_link_ksettings_add_link_mode(ks, supported,
                                                     1000baseT_Full);
                if (hw_link_info->requested_speeds & I40E_LINK_SPEED_1GB)
                        ethtool_link_ksettings_add_link_mode(ks, advertising,
                                                             1000baseT_Full);
                if (pf->hw_features & I40E_HW_100M_SGMII_CAPABLE) {
                        ethtool_link_ksettings_add_link_mode(ks, supported,
                                                             100baseT_Full);
                        if (hw_link_info->requested_speeds &
                            I40E_LINK_SPEED_100MB)
                                ethtool_link_ksettings_add_link_mode(
                                      ks, advertising, 100baseT_Full);
                }
                break;
        case I40E_PHY_TYPE_40GBASE_KR4:
        case I40E_PHY_TYPE_25GBASE_KR:
        case I40E_PHY_TYPE_20GBASE_KR2:
        case I40E_PHY_TYPE_10GBASE_KR:
        case I40E_PHY_TYPE_10GBASE_KX4:
        case I40E_PHY_TYPE_1000BASE_KX:
                ethtool_link_ksettings_add_link_mode(ks, supported,
                                                     40000baseKR4_Full);
                ethtool_link_ksettings_add_link_mode(ks, supported,
                                                     25000baseKR_Full);
                ethtool_link_ksettings_add_link_mode(ks, supported,
                                                     20000baseKR2_Full);
                ethtool_link_ksettings_add_link_mode(ks, supported,
                                                     10000baseKR_Full);
                ethtool_link_ksettings_add_link_mode(ks, supported,
                                                     10000baseKX4_Full);
                ethtool_link_ksettings_add_link_mode(ks, supported,
                                                     1000baseKX_Full);
                ethtool_link_ksettings_add_link_mode(ks, supported, Autoneg);
                ethtool_link_ksettings_add_link_mode(ks, advertising,
                                                     40000baseKR4_Full);
                ethtool_link_ksettings_add_link_mode(ks, advertising,
                                                     25000baseKR_Full);
                i40e_get_settings_link_up_fec(hw_link_info->req_fec_info, ks);
                ethtool_link_ksettings_add_link_mode(ks, advertising,
                                                     20000baseKR2_Full);
                ethtool_link_ksettings_add_link_mode(ks, advertising,
                                                     10000baseKR_Full);
                ethtool_link_ksettings_add_link_mode(ks, advertising,
                                                     10000baseKX4_Full);
                ethtool_link_ksettings_add_link_mode(ks, advertising,
                                                     1000baseKX_Full);
                ethtool_link_ksettings_add_link_mode(ks, advertising, Autoneg);
                break;
        case I40E_PHY_TYPE_25GBASE_CR:
                ethtool_link_ksettings_add_link_mode(ks, supported, Autoneg);
                ethtool_link_ksettings_add_link_mode(ks, advertising, Autoneg);
                ethtool_link_ksettings_add_link_mode(ks, supported,
                                                     25000baseCR_Full);
                ethtool_link_ksettings_add_link_mode(ks, advertising,
                                                     25000baseCR_Full);
                i40e_get_settings_link_up_fec(hw_link_info->req_fec_info, ks);

                break;
        case I40E_PHY_TYPE_25GBASE_AOC:
        case I40E_PHY_TYPE_25GBASE_ACC:
                ethtool_link_ksettings_add_link_mode(ks, supported, Autoneg);
                ethtool_link_ksettings_add_link_mode(ks, advertising, Autoneg);
                ethtool_link_ksettings_add_link_mode(ks, supported,
                                                     25000baseCR_Full);
                ethtool_link_ksettings_add_link_mode(ks, advertising,
                                                     25000baseCR_Full);
                i40e_get_settings_link_up_fec(hw_link_info->req_fec_info, ks);

                ethtool_link_ksettings_add_link_mode(ks, supported,
                                                     10000baseCR_Full);
                ethtool_link_ksettings_add_link_mode(ks, advertising,
                                                     10000baseCR_Full);
                break;
        default:
                /* if we got here and link is up something bad is afoot */
                netdev_info(netdev,
                            "WARNING: Link is up but PHY type 0x%x is not recognized.\n",
                            hw_link_info->phy_type);
        }

        /* Now that we've worked out everything that could be supported by the
         * current PHY type, get what is supported by the NVM and intersect
         * them to get what is truly supported
         */
        memset(&cap_ksettings, 0, sizeof(struct ethtool_link_ksettings));
        i40e_phy_type_to_ethtool(pf, &cap_ksettings);
        ethtool_intersect_link_masks(ks, &cap_ksettings);

        /* Set speed and duplex */
        switch (link_speed) {
        case I40E_LINK_SPEED_40GB:
                ks->base.speed = SPEED_40000;
                break;
        case I40E_LINK_SPEED_25GB:
                ks->base.speed = SPEED_25000;
                break;
        case I40E_LINK_SPEED_20GB:
                ks->base.speed = SPEED_20000;
                break;
        case I40E_LINK_SPEED_10GB:
                ks->base.speed = SPEED_10000;
                break;
        case I40E_LINK_SPEED_5GB:
                ks->base.speed = SPEED_5000;
                break;
        case I40E_LINK_SPEED_2_5GB:
                ks->base.speed = SPEED_2500;

                break;
        case I40E_LINK_SPEED_1GB:
                ks->base.speed = SPEED_1000;
                break;
        case I40E_LINK_SPEED_100MB:
                ks->base.speed = SPEED_100;
                break;
        default:
                ks->base.speed = SPEED_UNKNOWN;
                break;
        }
        ks->base.duplex = DUPLEX_FULL;
}

/**
 * i40e_get_settings_link_down - Get the Link settings for when link is down
 * @hw: hw structure
 * @ks: ethtool ksettings to fill in
 * @pf: pointer to physical function struct
 *
 * Reports link settings that can be determined when link is down
 **/
static void i40e_get_settings_link_down(struct i40e_hw *hw,
                                        struct ethtool_link_ksettings *ks,
                                        struct i40e_pf *pf)
{
        /* link is down and the driver needs to fall back on
         * supported phy types to figure out what info to display
         */
        i40e_phy_type_to_ethtool(pf, ks);

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

/**
 * i40e_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 i40e_get_link_ksettings(struct net_device *netdev,
                                   struct ethtool_link_ksettings *ks)
{
        struct i40e_netdev_priv *np = netdev_priv(netdev);
        struct i40e_pf *pf = np->vsi->back;
        struct i40e_hw *hw = &pf->hw;
        struct i40e_link_status *hw_link_info = &hw->phy.link_info;
        bool link_up = hw_link_info->link_info & I40E_AQ_LINK_UP;

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

        if (link_up)
                i40e_get_settings_link_up(hw, ks, netdev, pf);
        else
                i40e_get_settings_link_down(hw, ks, pf);

        /* Now set the settings that don't rely on link being up/down */
        /* Set autoneg settings */
        ks->base.autoneg = ((hw_link_info->an_info & I40E_AQ_AN_COMPLETED) ?
                            AUTONEG_ENABLE : AUTONEG_DISABLE);

        /* Set media type settings */
        switch (hw->phy.media_type) {
        case I40E_MEDIA_TYPE_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 I40E_MEDIA_TYPE_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 I40E_MEDIA_TYPE_DA:
        case I40E_MEDIA_TYPE_CX4:
                ethtool_link_ksettings_add_link_mode(ks, supported, FIBRE);
                ethtool_link_ksettings_add_link_mode(ks, advertising, FIBRE);
                ks->base.port = PORT_DA;
                break;
        case I40E_MEDIA_TYPE_FIBER:
                ethtool_link_ksettings_add_link_mode(ks, supported, FIBRE);
                ethtool_link_ksettings_add_link_mode(ks, advertising, FIBRE);
                ks->base.port = PORT_FIBRE;
                break;
        case I40E_MEDIA_TYPE_UNKNOWN:
        default:
                ks->base.port = PORT_OTHER;
                break;
        }

        /* Set flow control settings */
        ethtool_link_ksettings_add_link_mode(ks, supported, Pause);

        switch (hw->fc.requested_mode) {
        case I40E_FC_FULL:
                ethtool_link_ksettings_add_link_mode(ks, advertising, Pause);
                break;
        case I40E_FC_TX_PAUSE:
                ethtool_link_ksettings_add_link_mode(ks, advertising,
                                                     Asym_Pause);
                break;
        case I40E_FC_RX_PAUSE:
                ethtool_link_ksettings_add_link_mode(ks, advertising, Pause);
                ethtool_link_ksettings_add_link_mode(ks, advertising,
                                                     Asym_Pause);
                break;
        default:
                ethtool_link_ksettings_del_link_mode(ks, advertising, Pause);
                ethtool_link_ksettings_del_link_mode(ks, advertising,
                                                     Asym_Pause);
                break;
        }

        return 0;
}

/**
 * i40e_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 i40e_set_link_ksettings(struct net_device *netdev,
                                   const struct ethtool_link_ksettings *ks)
{
        struct i40e_netdev_priv *np = netdev_priv(netdev);
        struct i40e_aq_get_phy_abilities_resp abilities;
        struct ethtool_link_ksettings safe_ks;
        struct ethtool_link_ksettings copy_ks;
        struct i40e_aq_set_phy_config config;
        struct i40e_pf *pf = np->vsi->back;
        struct i40e_vsi *vsi = np->vsi;
        struct i40e_hw *hw = &pf->hw;
        bool autoneg_changed = false;
        i40e_status status = 0;
        int timeout = 50;
        int err = 0;
        u8 autoneg;

        /* Changing port settings is not supported if this isn't the
         * port's controlling PF
         */
        if (hw->partition_id != 1) {
                i40e_partition_setting_complaint(pf);
                return -EOPNOTSUPP;
        }
        if (vsi != pf->vsi[pf->lan_vsi])
                return -EOPNOTSUPP;
        if (hw->phy.media_type != I40E_MEDIA_TYPE_BASET &&
            hw->phy.media_type != I40E_MEDIA_TYPE_FIBER &&
            hw->phy.media_type != I40E_MEDIA_TYPE_BACKPLANE &&
            hw->phy.media_type != I40E_MEDIA_TYPE_DA &&
            hw->phy.link_info.link_info & I40E_AQ_LINK_UP)
                return -EOPNOTSUPP;
        if (hw->device_id == I40E_DEV_ID_KX_B ||
            hw->device_id == I40E_DEV_ID_KX_C ||
            hw->device_id == I40E_DEV_ID_20G_KR2 ||
            hw->device_id == I40E_DEV_ID_20G_KR2_A ||
            hw->device_id == I40E_DEV_ID_25G_B ||
            hw->device_id == I40E_DEV_ID_KX_X722) {
                netdev_info(netdev, "Changing settings is not supported on backplane.\n");
                return -EOPNOTSUPP;
        }

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

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

        /* get our own copy of the bits to check against */
        memset(&safe_ks, 0, sizeof(struct ethtool_link_ksettings));
        safe_ks.base.cmd = copy_ks.base.cmd;
        safe_ks.base.link_mode_masks_nwords =
                copy_ks.base.link_mode_masks_nwords;
        i40e_get_link_ksettings(netdev, &safe_ks);

        /* Get link modes supported by hardware and check against modes
         * requested by the 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))
                return -EINVAL;

        /* set autoneg back to what it currently is */
        copy_ks.base.autoneg = safe_ks.base.autoneg;

        /* 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(struct ethtool_link_settings)))
                return -EOPNOTSUPP;

        while (test_and_set_bit(__I40E_CONFIG_BUSY, pf->state)) {
                timeout--;
                if (!timeout)
                        return -EBUSY;
                usleep_range(1000, 2000);
        }

        /* Get the current phy config */
        status = i40e_aq_get_phy_capabilities(hw, false, false, &abilities,
                                              NULL);
        if (status) {
                err = -EAGAIN;
                goto done;
        }

        /* Copy abilities to config in case autoneg is not
         * set below
         */
        memset(&config, 0, sizeof(struct i40e_aq_set_phy_config));
        config.abilities = abilities.abilities;

        /* Check autoneg */
        if (autoneg == AUTONEG_ENABLE) {
                /* If autoneg was not already enabled */
                if (!(hw->phy.link_info.an_info & I40E_AQ_AN_COMPLETED)) {
                        /* If autoneg is not supported, return error */
                        if (!ethtool_link_ksettings_test_link_mode(&safe_ks,
                                                                   supported,
                                                                   Autoneg)) {
                                netdev_info(netdev, "Autoneg not supported on this phy\n");
                                err = -EINVAL;
                                goto done;
                        }
                        /* Autoneg is allowed to change */
                        config.abilities = abilities.abilities |
                                           I40E_AQ_PHY_ENABLE_AN;
                        autoneg_changed = true;
                }
        } else {
                /* If autoneg is currently enabled */
                if (hw->phy.link_info.an_info & I40E_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(&safe_ks,
                                                                  supported,
                                                                  Autoneg) &&
                            hw->phy.link_info.phy_type !=
                            I40E_PHY_TYPE_10GBASE_T) {
                                netdev_info(netdev, "Autoneg cannot be disabled on this phy\n");
                                err = -EINVAL;
                                goto done;
                        }
                        /* Autoneg is allowed to change */
                        config.abilities = abilities.abilities &
                                           ~I40E_AQ_PHY_ENABLE_AN;
                        autoneg_changed = true;
                }
        }

        if (ethtool_link_ksettings_test_link_mode(ks, advertising,
                                                  100baseT_Full))
                config.link_speed |= I40E_LINK_SPEED_100MB;
        if (ethtool_link_ksettings_test_link_mode(ks, advertising,
                                                  1000baseT_Full) ||
            ethtool_link_ksettings_test_link_mode(ks, advertising,
                                                  1000baseX_Full) ||
            ethtool_link_ksettings_test_link_mode(ks, advertising,
                                                  1000baseKX_Full))
                config.link_speed |= I40E_LINK_SPEED_1GB;
        if (ethtool_link_ksettings_test_link_mode(ks, advertising,
                                                  10000baseT_Full) ||
            ethtool_link_ksettings_test_link_mode(ks, advertising,
                                                  10000baseKX4_Full) ||
            ethtool_link_ksettings_test_link_mode(ks, advertising,
                                                  10000baseKR_Full) ||
            ethtool_link_ksettings_test_link_mode(ks, advertising,
                                                  10000baseCR_Full) ||
            ethtool_link_ksettings_test_link_mode(ks, advertising,
                                                  10000baseSR_Full) ||
            ethtool_link_ksettings_test_link_mode(ks, advertising,
                                                  10000baseLR_Full))
                config.link_speed |= I40E_LINK_SPEED_10GB;
        if (ethtool_link_ksettings_test_link_mode(ks, advertising,
                                                  2500baseT_Full))
                config.link_speed |= I40E_LINK_SPEED_2_5GB;
        if (ethtool_link_ksettings_test_link_mode(ks, advertising,
                                                  5000baseT_Full))
                config.link_speed |= I40E_LINK_SPEED_5GB;
        if (ethtool_link_ksettings_test_link_mode(ks, advertising,
                                                  20000baseKR2_Full))
                config.link_speed |= I40E_LINK_SPEED_20GB;
        if (ethtool_link_ksettings_test_link_mode(ks, advertising,
                                                  25000baseCR_Full) ||
            ethtool_link_ksettings_test_link_mode(ks, advertising,
                                                  25000baseKR_Full) ||
            ethtool_link_ksettings_test_link_mode(ks, advertising,
                                                  25000baseSR_Full))
                config.link_speed |= I40E_LINK_SPEED_25GB;
        if (ethtool_link_ksettings_test_link_mode(ks, advertising,
                                                  40000baseKR4_Full) ||
            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))
                config.link_speed |= I40E_LINK_SPEED_40GB;

        /* 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 (!config.link_speed)
                config.link_speed = abilities.link_speed;
        if (autoneg_changed || abilities.link_speed != config.link_speed) {
                /* copy over the rest of the abilities */
                config.phy_type = abilities.phy_type;
                config.phy_type_ext = abilities.phy_type_ext;
                config.eee_capability = abilities.eee_capability;
                config.eeer = abilities.eeer_val;
                config.low_power_ctrl = abilities.d3_lpan;
                config.fec_config = abilities.fec_cfg_curr_mod_ext_info &
                                    I40E_AQ_PHY_FEC_CONFIG_MASK;

                /* save the requested speeds */
                hw->phy.link_info.requested_speeds = config.link_speed;
                /* set link and auto negotiation so changes take effect */
                config.abilities |= I40E_AQ_PHY_ENABLE_ATOMIC_LINK;
                /* If link is up put link down */
                if (hw->phy.link_info.link_info & I40E_AQ_LINK_UP) {
                        /* Tell the OS link is going down, the link will go
                         * back up when fw says it is ready asynchronously
                         */
                        i40e_print_link_message(vsi, false);
                        netif_carrier_off(netdev);
                        netif_tx_stop_all_queues(netdev);
                }

                /* make the aq call */
                status = i40e_aq_set_phy_config(hw, &config, NULL);
                if (status) {
                        netdev_info(netdev,
                                    "Set phy config failed, err %s aq_err %s\n",
                                    i40e_stat_str(hw, status),
                                    i40e_aq_str(hw, hw->aq.asq_last_status));
                        err = -EAGAIN;
                        goto done;
                }

                status = i40e_update_link_info(hw);
                if (status)
                        netdev_dbg(netdev,
                                   "Updating link info failed with err %s aq_err %s\n",
                                   i40e_stat_str(hw, status),
                                   i40e_aq_str(hw, hw->aq.asq_last_status));

        } else {
                netdev_info(netdev, "Nothing changed, exiting without setting anything.\n");
        }

done:
        clear_bit(__I40E_CONFIG_BUSY, pf->state);

        return err;
}

static int i40e_set_fec_cfg(struct net_device *netdev, u8 fec_cfg)
{
        struct i40e_netdev_priv *np = netdev_priv(netdev);
        struct i40e_aq_get_phy_abilities_resp abilities;
        struct i40e_pf *pf = np->vsi->back;
        struct i40e_hw *hw = &pf->hw;
        i40e_status status = 0;
        u32 flags = 0;
        int err = 0;

        flags = READ_ONCE(pf->flags);
        i40e_set_fec_in_flags(fec_cfg, &flags);

        /* Get the current phy config */
        memset(&abilities, 0, sizeof(abilities));
        status = i40e_aq_get_phy_capabilities(hw, false, false, &abilities,
                                              NULL);
        if (status) {
                err = -EAGAIN;
                goto done;
        }

        if (abilities.fec_cfg_curr_mod_ext_info != fec_cfg) {
                struct i40e_aq_set_phy_config config;

                memset(&config, 0, sizeof(config));
                config.phy_type = abilities.phy_type;
                config.abilities = abilities.abilities;
                config.phy_type_ext = abilities.phy_type_ext;
                config.link_speed = abilities.link_speed;
                config.eee_capability = abilities.eee_capability;
                config.eeer = abilities.eeer_val;
                config.low_power_ctrl = abilities.d3_lpan;
                config.fec_config = fec_cfg & I40E_AQ_PHY_FEC_CONFIG_MASK;
                status = i40e_aq_set_phy_config(hw, &config, NULL);
                if (status) {
                        netdev_info(netdev,
                                    "Set phy config failed, err %s aq_err %s\n",
                                    i40e_stat_str(hw, status),
                                    i40e_aq_str(hw, hw->aq.asq_last_status));
                        err = -EAGAIN;
                        goto done;
                }
                pf->flags = flags;
                status = i40e_update_link_info(hw);
                if (status)
                        /* debug level message only due to relation to the link
                         * itself rather than to the FEC settings
                         * (e.g. no physical connection etc.)
                         */
                        netdev_dbg(netdev,
                                   "Updating link info failed with err %s aq_err %s\n",
                                   i40e_stat_str(hw, status),
                                   i40e_aq_str(hw, hw->aq.asq_last_status));
        }

done:
        return err;
}

static int i40e_get_fec_param(struct net_device *netdev,
                              struct ethtool_fecparam *fecparam)
{
        struct i40e_netdev_priv *np = netdev_priv(netdev);
        struct i40e_aq_get_phy_abilities_resp abilities;
        struct i40e_pf *pf = np->vsi->back;
        struct i40e_hw *hw = &pf->hw;
        i40e_status status = 0;
        int err = 0;

        /* Get the current phy config */
        memset(&abilities, 0, sizeof(abilities));
        status = i40e_aq_get_phy_capabilities(hw, false, false, &abilities,
                                              NULL);
        if (status) {
                err = -EAGAIN;
                goto done;
        }

        fecparam->fec = 0;
        if (abilities.fec_cfg_curr_mod_ext_info & I40E_AQ_SET_FEC_AUTO)
                fecparam->fec |= ETHTOOL_FEC_AUTO;
        if ((abilities.fec_cfg_curr_mod_ext_info &
             I40E_AQ_SET_FEC_REQUEST_RS) ||
            (abilities.fec_cfg_curr_mod_ext_info &
             I40E_AQ_SET_FEC_ABILITY_RS))
                fecparam->fec |= ETHTOOL_FEC_RS;
        if ((abilities.fec_cfg_curr_mod_ext_info &
             I40E_AQ_SET_FEC_REQUEST_KR) ||
            (abilities.fec_cfg_curr_mod_ext_info & I40E_AQ_SET_FEC_ABILITY_KR))
                fecparam->fec |= ETHTOOL_FEC_BASER;
        if (abilities.fec_cfg_curr_mod_ext_info == 0)
                fecparam->fec |= ETHTOOL_FEC_OFF;

        if (hw->phy.link_info.fec_info & I40E_AQ_CONFIG_FEC_KR_ENA)
                fecparam->active_fec = ETHTOOL_FEC_BASER;
        else if (hw->phy.link_info.fec_info & I40E_AQ_CONFIG_FEC_RS_ENA)
                fecparam->active_fec = ETHTOOL_FEC_RS;
        else
                fecparam->active_fec = ETHTOOL_FEC_OFF;
done:
        return err;
}

static int i40e_set_fec_param(struct net_device *netdev,
                              struct ethtool_fecparam *fecparam)
{
        struct i40e_netdev_priv *np = netdev_priv(netdev);
        struct i40e_pf *pf = np->vsi->back;
        struct i40e_hw *hw = &pf->hw;
        u8 fec_cfg = 0;
        int err = 0;

        if (hw->device_id != I40E_DEV_ID_25G_SFP28 &&
            hw->device_id != I40E_DEV_ID_25G_B) {
                err = -EPERM;
                goto done;
        }

        switch (fecparam->fec) {
        case ETHTOOL_FEC_AUTO:
                fec_cfg = I40E_AQ_SET_FEC_AUTO;
                break;
        case ETHTOOL_FEC_RS:
                fec_cfg = (I40E_AQ_SET_FEC_REQUEST_RS |
                             I40E_AQ_SET_FEC_ABILITY_RS);
                break;
        case ETHTOOL_FEC_BASER:
                fec_cfg = (I40E_AQ_SET_FEC_REQUEST_KR |
                             I40E_AQ_SET_FEC_ABILITY_KR);
                break;
        case ETHTOOL_FEC_OFF:
        case ETHTOOL_FEC_NONE:
                fec_cfg = 0;
                break;
        default:
                dev_warn(&pf->pdev->dev, "Unsupported FEC mode: %d",
                         fecparam->fec);
                err = -EINVAL;
                goto done;
        }

        err = i40e_set_fec_cfg(netdev, fec_cfg);

done:
        return err;
}

static int i40e_nway_reset(struct net_device *netdev)
{
        /* restart autonegotiation */
        struct i40e_netdev_priv *np = netdev_priv(netdev);
        struct i40e_pf *pf = np->vsi->back;
        struct i40e_hw *hw = &pf->hw;
        bool link_up = hw->phy.link_info.link_info & I40E_AQ_LINK_UP;
        i40e_status ret = 0;

        ret = i40e_aq_set_link_restart_an(hw, link_up, NULL);
        if (ret) {
                netdev_info(netdev, "link restart failed, err %s aq_err %s\n",
                            i40e_stat_str(hw, ret),
                            i40e_aq_str(hw, hw->aq.asq_last_status));
                return -EIO;
        }

        return 0;
}

/**
 * i40e_get_pauseparam -  Get Flow Control status
 * @netdev: netdevice structure
 * @pause: buffer to return pause parameters
 *
 * Return tx/rx-pause status
 **/
static void i40e_get_pauseparam(struct net_device *netdev,
                                struct ethtool_pauseparam *pause)
{
        struct i40e_netdev_priv *np = netdev_priv(netdev);
        struct i40e_pf *pf = np->vsi->back;
        struct i40e_hw *hw = &pf->hw;
        struct i40e_link_status *hw_link_info = &hw->phy.link_info;
        struct i40e_dcbx_config *dcbx_cfg = &hw->local_dcbx_config;

        pause->autoneg =
                ((hw_link_info->an_info & I40E_AQ_AN_COMPLETED) ?
                  AUTONEG_ENABLE : AUTONEG_DISABLE);

        /* PFC enabled so report LFC as off */
        if (dcbx_cfg->pfc.pfcenable) {
                pause->rx_pause = 0;
                pause->tx_pause = 0;
                return;
        }

        if (hw->fc.current_mode == I40E_FC_RX_PAUSE) {
                pause->rx_pause = 1;
        } else if (hw->fc.current_mode == I40E_FC_TX_PAUSE) {
                pause->tx_pause = 1;
        } else if (hw->fc.current_mode == I40E_FC_FULL) {
                pause->rx_pause = 1;
                pause->tx_pause = 1;
        }
}

/**
 * i40e_set_pauseparam - Set Flow Control parameter
 * @netdev: network interface device structure
 * @pause: return tx/rx flow control status
 **/
static int i40e_set_pauseparam(struct net_device *netdev,
                               struct ethtool_pauseparam *pause)
{
        struct i40e_netdev_priv *np = netdev_priv(netdev);
        struct i40e_pf *pf = np->vsi->back;
        struct i40e_vsi *vsi = np->vsi;
        struct i40e_hw *hw = &pf->hw;
        struct i40e_link_status *hw_link_info = &hw->phy.link_info;
        struct i40e_dcbx_config *dcbx_cfg = &hw->local_dcbx_config;
        bool link_up = hw_link_info->link_info & I40E_AQ_LINK_UP;
        i40e_status status;
        u8 aq_failures;
        int err = 0;
        u32 is_an;

        /* Changing the port's flow control is not supported if this isn't the
         * port's controlling PF
         */
        if (hw->partition_id != 1) {
                i40e_partition_setting_complaint(pf);
                return -EOPNOTSUPP;
        }

        if (vsi != pf->vsi[pf->lan_vsi])
                return -EOPNOTSUPP;

        is_an = hw_link_info->an_info & I40E_AQ_AN_COMPLETED;
        if (pause->autoneg != is_an) {
                netdev_info(netdev, "To change autoneg please use: ethtool -s <dev> autoneg <on|off>\n");
                return -EOPNOTSUPP;
        }

        /* If we have link and don't have autoneg */
        if (!test_bit(__I40E_DOWN, pf->state) && !is_an) {
                /* Send message that it might not necessarily work*/
                netdev_info(netdev, "Autoneg did not complete so changing settings may not result in an actual change.\n");
        }

        if (dcbx_cfg->pfc.pfcenable) {
                netdev_info(netdev,
                            "Priority flow control enabled. Cannot set link flow control.\n");
                return -EOPNOTSUPP;
        }

        if (pause->rx_pause && pause->tx_pause)
                hw->fc.requested_mode = I40E_FC_FULL;
        else if (pause->rx_pause && !pause->tx_pause)
                hw->fc.requested_mode = I40E_FC_RX_PAUSE;
        else if (!pause->rx_pause && pause->tx_pause)
                hw->fc.requested_mode = I40E_FC_TX_PAUSE;
        else if (!pause->rx_pause && !pause->tx_pause)
                hw->fc.requested_mode = I40E_FC_NONE;
        else
                return -EINVAL;

        /* Tell the OS link is going down, the link will go back up when fw
         * says it is ready asynchronously
         */
        i40e_print_link_message(vsi, false);
        netif_carrier_off(netdev);
        netif_tx_stop_all_queues(netdev);

        /* Set the fc mode and only restart an if link is up*/
        status = i40e_set_fc(hw, &aq_failures, link_up);

        if (aq_failures & I40E_SET_FC_AQ_FAIL_GET) {
                netdev_info(netdev, "Set fc failed on the get_phy_capabilities call with err %s aq_err %s\n",
                            i40e_stat_str(hw, status),
                            i40e_aq_str(hw, hw->aq.asq_last_status));
                err = -EAGAIN;
        }
        if (aq_failures & I40E_SET_FC_AQ_FAIL_SET) {
                netdev_info(netdev, "Set fc failed on the set_phy_config call with err %s aq_err %s\n",
                            i40e_stat_str(hw, status),
                            i40e_aq_str(hw, hw->aq.asq_last_status));
                err = -EAGAIN;
        }
        if (aq_failures & I40E_SET_FC_AQ_FAIL_UPDATE) {
                netdev_info(netdev, "Set fc failed on the get_link_info call with err %s aq_err %s\n",
                            i40e_stat_str(hw, status),
                            i40e_aq_str(hw, hw->aq.asq_last_status));
                err = -EAGAIN;
        }

        if (!test_bit(__I40E_DOWN, pf->state) && is_an) {
                /* Give it a little more time to try to come back */
                msleep(75);
                if (!test_bit(__I40E_DOWN, pf->state))
                        return i40e_nway_reset(netdev);
        }

        return err;
}

static u32 i40e_get_msglevel(struct net_device *netdev)
{
        struct i40e_netdev_priv *np = netdev_priv(netdev);
        struct i40e_pf *pf = np->vsi->back;
        u32 debug_mask = pf->hw.debug_mask;

        if (debug_mask)
                netdev_info(netdev, "i40e debug_mask: 0x%08X\n", debug_mask);

        return pf->msg_enable;
}

static void i40e_set_msglevel(struct net_device *netdev, u32 data)
{
        struct i40e_netdev_priv *np = netdev_priv(netdev);
        struct i40e_pf *pf = np->vsi->back;

        if (I40E_DEBUG_USER & data)
                pf->hw.debug_mask = data;
        else
                pf->msg_enable = data;
}

static int i40e_get_regs_len(struct net_device *netdev)
{
        int reg_count = 0;
        int i;

        for (i = 0; i40e_reg_list[i].offset != 0; i++)
                reg_count += i40e_reg_list[i].elements;

        return reg_count * sizeof(u32);
}

static void i40e_get_regs(struct net_device *netdev, struct ethtool_regs *regs,
                          void *p)
{
        struct i40e_netdev_priv *np = netdev_priv(netdev);
        struct i40e_pf *pf = np->vsi->back;
        struct i40e_hw *hw = &pf->hw;
        u32 *reg_buf = p;
        unsigned int i, j, ri;
        u32 reg;

        /* Tell ethtool which driver-version-specific regs output we have.
         *
         * At some point, if we have ethtool doing special formatting of
         * this data, it will rely on this version number to know how to
         * interpret things.  Hence, this needs to be updated if/when the
         * diags register table is changed.
         */
        regs->version = 1;

        /* loop through the diags reg table for what to print */
        ri = 0;
        for (i = 0; i40e_reg_list[i].offset != 0; i++) {
                for (j = 0; j < i40e_reg_list[i].elements; j++) {
                        reg = i40e_reg_list[i].offset
                                + (j * i40e_reg_list[i].stride);
                        reg_buf[ri++] = rd32(hw, reg);
                }
        }

}

static int i40e_get_eeprom(struct net_device *netdev,
                           struct ethtool_eeprom *eeprom, u8 *bytes)
{
        struct i40e_netdev_priv *np = netdev_priv(netdev);
        struct i40e_hw *hw = &np->vsi->back->hw;
        struct i40e_pf *pf = np->vsi->back;
        int ret_val = 0, len, offset;
        u8 *eeprom_buff;
        u16 i, sectors;
        bool last;
        u32 magic;

#define I40E_NVM_SECTOR_SIZE  4096
        if (eeprom->len == 0)
                return -EINVAL;

        /* check for NVMUpdate access method */
        magic = hw->vendor_id | (hw->device_id << 16);
        if (eeprom->magic && eeprom->magic != magic) {
                struct i40e_nvm_access *cmd = (struct i40e_nvm_access *)eeprom;
                int errno = 0;

                /* make sure it is the right magic for NVMUpdate */
                if ((eeprom->magic >> 16) != hw->device_id)
                        errno = -EINVAL;
                else if (test_bit(__I40E_RESET_RECOVERY_PENDING, pf->state) ||
                         test_bit(__I40E_RESET_INTR_RECEIVED, pf->state))
                        errno = -EBUSY;
                else
                        ret_val = i40e_nvmupd_command(hw, cmd, bytes, &errno);

                if ((errno || ret_val) && (hw->debug_mask & I40E_DEBUG_NVM))
                        dev_info(&pf->pdev->dev,
                                 "NVMUpdate read failed err=%d status=0x%x errno=%d module=%d offset=0x%x size=%d\n",
                                 ret_val, hw->aq.asq_last_status, errno,
                                 (u8)(cmd->config & I40E_NVM_MOD_PNT_MASK),
                                 cmd->offset, cmd->data_size);

                return errno;
        }

        /* normal ethtool get_eeprom support */
        eeprom->magic = hw->vendor_id | (hw->device_id << 16);

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

        ret_val = i40e_acquire_nvm(hw, I40E_RESOURCE_READ);
        if (ret_val) {
                dev_info(&pf->pdev->dev,
                         "Failed Acquiring NVM resource for read err=%d status=0x%x\n",
                         ret_val, hw->aq.asq_last_status);
                goto free_buff;
        }

        sectors = eeprom->len / I40E_NVM_SECTOR_SIZE;
        sectors += (eeprom->len % I40E_NVM_SECTOR_SIZE) ? 1 : 0;
        len = I40E_NVM_SECTOR_SIZE;
        last = false;
        for (i = 0; i < sectors; i++) {
                if (i == (sectors - 1)) {
                        len = eeprom->len - (I40E_NVM_SECTOR_SIZE * i);
                        last = true;
                }
                offset = eeprom->offset + (I40E_NVM_SECTOR_SIZE * i),
                ret_val = i40e_aq_read_nvm(hw, 0x0, offset, len,
                                (u8 *)eeprom_buff + (I40E_NVM_SECTOR_SIZE * i),
                                last, NULL);
                if (ret_val && hw->aq.asq_last_status == I40E_AQ_RC_EPERM) {
                        dev_info(&pf->pdev->dev,
                                 "read NVM failed, invalid offset 0x%x\n",
                                 offset);
                        break;
                } else if (ret_val &&
                           hw->aq.asq_last_status == I40E_AQ_RC_EACCES) {
                        dev_info(&pf->pdev->dev,
                                 "read NVM failed, access, offset 0x%x\n",
                                 offset);
                        break;
                } else if (ret_val) {
                        dev_info(&pf->pdev->dev,
                                 "read NVM failed offset %d err=%d status=0x%x\n",
                                 offset, ret_val, hw->aq.asq_last_status);
                        break;
                }
        }

        i40e_release_nvm(hw);
        memcpy(bytes, (u8 *)eeprom_buff, eeprom->len);
free_buff:
        kfree(eeprom_buff);
        return ret_val;
}

static int i40e_get_eeprom_len(struct net_device *netdev)
{
        struct i40e_netdev_priv *np = netdev_priv(netdev);
        struct i40e_hw *hw = &np->vsi->back->hw;
        u32 val;

#define X722_EEPROM_SCOPE_LIMIT 0x5B9FFF
        if (hw->mac.type == I40E_MAC_X722) {
                val = X722_EEPROM_SCOPE_LIMIT + 1;
                return val;
        }
        val = (rd32(hw, I40E_GLPCI_LBARCTRL)
                & I40E_GLPCI_LBARCTRL_FL_SIZE_MASK)
                >> I40E_GLPCI_LBARCTRL_FL_SIZE_SHIFT;
        /* register returns value in power of 2, 64Kbyte chunks. */
        val = (64 * 1024) * BIT(val);
        return val;
}

static int i40e_set_eeprom(struct net_device *netdev,
                           struct ethtool_eeprom *eeprom, u8 *bytes)
{
        struct i40e_netdev_priv *np = netdev_priv(netdev);
        struct i40e_hw *hw = &np->vsi->back->hw;
        struct i40e_pf *pf = np->vsi->back;
        struct i40e_nvm_access *cmd = (struct i40e_nvm_access *)eeprom;
        int ret_val = 0;
        int errno = 0;
        u32 magic;

        /* normal ethtool set_eeprom is not supported */
        magic = hw->vendor_id | (hw->device_id << 16);
        if (eeprom->magic == magic)
                errno = -EOPNOTSUPP;
        /* check for NVMUpdate access method */
        else if (!eeprom->magic || (eeprom->magic >> 16) != hw->device_id)
                errno = -EINVAL;
        else if (test_bit(__I40E_RESET_RECOVERY_PENDING, pf->state) ||
                 test_bit(__I40E_RESET_INTR_RECEIVED, pf->state))
                errno = -EBUSY;
        else
                ret_val = i40e_nvmupd_command(hw, cmd, bytes, &errno);

        if ((errno || ret_val) && (hw->debug_mask & I40E_DEBUG_NVM))
                dev_info(&pf->pdev->dev,
                         "NVMUpdate write failed err=%d status=0x%x errno=%d module=%d offset=0x%x size=%d\n",
                         ret_val, hw->aq.asq_last_status, errno,
                         (u8)(cmd->config & I40E_NVM_MOD_PNT_MASK),
                         cmd->offset, cmd->data_size);

        return errno;
}

static void i40e_get_drvinfo(struct net_device *netdev,
                             struct ethtool_drvinfo *drvinfo)
{
        struct i40e_netdev_priv *np = netdev_priv(netdev);
        struct i40e_vsi *vsi = np->vsi;
        struct i40e_pf *pf = vsi->back;

        strlcpy(drvinfo->driver, i40e_driver_name, sizeof(drvinfo->driver));
        strlcpy(drvinfo->version, i40e_driver_version_str,
                sizeof(drvinfo->version));
        strlcpy(drvinfo->fw_version, i40e_nvm_version_str(&pf->hw),
                sizeof(drvinfo->fw_version));
        strlcpy(drvinfo->bus_info, pci_name(pf->pdev),
                sizeof(drvinfo->bus_info));
        drvinfo->n_priv_flags = I40E_PRIV_FLAGS_STR_LEN;
        if (pf->hw.pf_id == 0)
                drvinfo->n_priv_flags += I40E_GL_PRIV_FLAGS_STR_LEN;
}

static void i40e_get_ringparam(struct net_device *netdev,
                               struct ethtool_ringparam *ring)
{
        struct i40e_netdev_priv *np = netdev_priv(netdev);
        struct i40e_pf *pf = np->vsi->back;
        struct i40e_vsi *vsi = pf->vsi[pf->lan_vsi];

        ring->rx_max_pending = I40E_MAX_NUM_DESCRIPTORS;
        ring->tx_max_pending = I40E_MAX_NUM_DESCRIPTORS;
        ring->rx_mini_max_pending = 0;
        ring->rx_jumbo_max_pending = 0;
        ring->rx_pending = vsi->rx_rings[0]->count;
        ring->tx_pending = vsi->tx_rings[0]->count;
        ring->rx_mini_pending = 0;
        ring->rx_jumbo_pending = 0;
}

static bool i40e_active_tx_ring_index(struct i40e_vsi *vsi, u16 index)
{
        if (i40e_enabled_xdp_vsi(vsi)) {
                return index < vsi->num_queue_pairs ||
                        (index >= vsi->alloc_queue_pairs &&
                         index < vsi->alloc_queue_pairs + vsi->num_queue_pairs);
        }

        return index < vsi->num_queue_pairs;
}

static int i40e_set_ringparam(struct net_device *netdev,
                              struct ethtool_ringparam *ring)
{
        struct i40e_ring *tx_rings = NULL, *rx_rings = NULL;
        struct i40e_netdev_priv *np = netdev_priv(netdev);
        struct i40e_hw *hw = &np->vsi->back->hw;
        struct i40e_vsi *vsi = np->vsi;
        struct i40e_pf *pf = vsi->back;
        u32 new_rx_count, new_tx_count;
        u16 tx_alloc_queue_pairs;
        int timeout = 50;
        int i, err = 0;

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

        if (ring->tx_pending > I40E_MAX_NUM_DESCRIPTORS ||
            ring->tx_pending < I40E_MIN_NUM_DESCRIPTORS ||
            ring->rx_pending > I40E_MAX_NUM_DESCRIPTORS ||
            ring->rx_pending < I40E_MIN_NUM_DESCRIPTORS) {
                netdev_info(netdev,
                            "Descriptors requested (Tx: %d / Rx: %d) out of range [%d-%d]\n",
                            ring->tx_pending, ring->rx_pending,
                            I40E_MIN_NUM_DESCRIPTORS, I40E_MAX_NUM_DESCRIPTORS);
                return -EINVAL;
        }

        new_tx_count = ALIGN(ring->tx_pending, I40E_REQ_DESCRIPTOR_MULTIPLE);
        new_rx_count = ALIGN(ring->rx_pending, I40E_REQ_DESCRIPTOR_MULTIPLE);

        /* if nothing to do return success */
        if ((new_tx_count == vsi->tx_rings[0]->count) &&
            (new_rx_count == vsi->rx_rings[0]->count))
                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 (i40e_xsk_any_rx_ring_enabled(vsi))
                return -EBUSY;

        while (test_and_set_bit(__I40E_CONFIG_BUSY, pf->state)) {
                timeout--;
                if (!timeout)
                        return -EBUSY;
                usleep_range(1000, 2000);
        }

        if (!netif_running(vsi->netdev)) {
                /* simple case - set for the next time the netdev is started */
                for (i = 0; i < vsi->num_queue_pairs; i++) {
                        vsi->tx_rings[i]->count = new_tx_count;
                        vsi->rx_rings[i]->count = new_rx_count;
                        if (i40e_enabled_xdp_vsi(vsi))
                                vsi->xdp_rings[i]->count = new_tx_count;
                }
                vsi->num_tx_desc = new_tx_count;
                vsi->num_rx_desc = new_rx_count;
                goto done;
        }

        /* We can't just free everything and then setup again,
         * because the ISRs in MSI-X mode get passed pointers
         * to the Tx and Rx ring structs.
         */

        /* alloc updated Tx and XDP Tx resources */
        tx_alloc_queue_pairs = vsi->alloc_queue_pairs *
                               (i40e_enabled_xdp_vsi(vsi) ? 2 : 1);
        if (new_tx_count != vsi->tx_rings[0]->count) {
                netdev_info(netdev,
                            "Changing Tx descriptor count from %d to %d.\n",
                            vsi->tx_rings[0]->count, new_tx_count);
                tx_rings = kcalloc(tx_alloc_queue_pairs,
                                   sizeof(struct i40e_ring), GFP_KERNEL);
                if (!tx_rings) {
                        err = -ENOMEM;
                        goto done;
                }

                for (i = 0; i < tx_alloc_queue_pairs; i++) {
                        if (!i40e_active_tx_ring_index(vsi, i))
                                continue;

                        tx_rings[i] = *vsi->tx_rings[i];
                        tx_rings[i].count = new_tx_count;
                        /* the desc and bi pointers will be reallocated in the
                         * setup call
                         */
                        tx_rings[i].desc = NULL;
                        tx_rings[i].rx_bi = NULL;
                        err = i40e_setup_tx_descriptors(&tx_rings[i]);
                        if (err) {
                                while (i) {
                                        i--;
                                        if (!i40e_active_tx_ring_index(vsi, i))
                                                continue;
                                        i40e_free_tx_resources(&tx_rings[i]);
                                }
                                kfree(tx_rings);
                                tx_rings = NULL;

                                goto done;
                        }
                }
        }

        /* alloc updated Rx resources */
        if (new_rx_count != vsi->rx_rings[0]->count) {
                netdev_info(netdev,
                            "Changing Rx descriptor count from %d to %d\n",
                            vsi->rx_rings[0]->count, new_rx_count);
                rx_rings = kcalloc(vsi->alloc_queue_pairs,
                                   sizeof(struct i40e_ring), GFP_KERNEL);
                if (!rx_rings) {
                        err = -ENOMEM;
                        goto free_tx;
                }

                for (i = 0; i < vsi->num_queue_pairs; i++) {
                        u16 unused;

                        /* clone ring and setup updated count */
                        rx_rings[i] = *vsi->rx_rings[i];
                        rx_rings[i].count = new_rx_count;
                        /* the desc and bi pointers will be reallocated in the
                         * setup call
                         */
                        rx_rings[i].desc = NULL;
                        rx_rings[i].rx_bi = NULL;
                        /* Clear cloned XDP RX-queue info before setup call */
                        memset(&rx_rings[i].xdp_rxq, 0, sizeof(rx_rings[i].xdp_rxq));
                        /* this is to allow wr32 to have something to write to
                         * during early allocation of Rx buffers
                         */
                        rx_rings[i].tail = hw->hw_addr + I40E_PRTGEN_STATUS;
                        err = i40e_setup_rx_descriptors(&rx_rings[i]);
                        if (err)
                                goto rx_unwind;

                        /* now allocate the Rx buffers to make sure the OS
                         * has enough memory, any failure here means abort
                         */
                        unused = I40E_DESC_UNUSED(&rx_rings[i]);
                        err = i40e_alloc_rx_buffers(&rx_rings[i], unused);
rx_unwind:
                        if (err) {
                                do {
                                        i40e_free_rx_resources(&rx_rings[i]);
                                } while (i--);
                                kfree(rx_rings);
                                rx_rings = NULL;

                                goto free_tx;
                        }
                }
        }

        /* Bring interface down, copy in the new ring info,
         * then restore the interface
         */
        i40e_down(vsi);

        if (tx_rings) {
                for (i = 0; i < tx_alloc_queue_pairs; i++) {
                        if (i40e_active_tx_ring_index(vsi, i)) {
                                i40e_free_tx_resources(vsi->tx_rings[i]);
                                *vsi->tx_rings[i] = tx_rings[i];
                        }
                }
                kfree(tx_rings);
                tx_rings = NULL;
        }

        if (rx_rings) {
                for (i = 0; i < vsi->num_queue_pairs; i++) {
                        i40e_free_rx_resources(vsi->rx_rings[i]);
                        /* get 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;
                        /* do a struct copy */
                        *vsi->rx_rings[i] = rx_rings[i];
                }
                kfree(rx_rings);
                rx_rings = NULL;
        }

        vsi->num_tx_desc = new_tx_count;
        vsi->num_rx_desc = new_rx_count;
        i40e_up(vsi);

free_tx:
        /* error cleanup if the Rx allocations failed after getting Tx */
        if (tx_rings) {
                for (i = 0; i < tx_alloc_queue_pairs; i++) {
                        if (i40e_active_tx_ring_index(vsi, i))
                                i40e_free_tx_resources(vsi->tx_rings[i]);
                }
                kfree(tx_rings);
                tx_rings = NULL;
        }

done:
        clear_bit(__I40E_CONFIG_BUSY, pf->state);

        return err;
}

/**
 * i40e_get_stats_count - return the stats count for a device
 * @netdev: the netdev to return the count for
 *
 * Returns the total number of statistics for this netdev. Note that even
 * though this is a function, it is required that the count for a specific
 * netdev must never change. Basing the count on static values such as the
 * maximum number of queues or the device type is ok. However, the API for
 * obtaining stats is *not* safe against changes based on non-static
 * values such as the *current* number of queues, or runtime flags.
 *
 * If a statistic is not always enabled, return it as part of the count
 * anyways, always return its string, and report its value as zero.
 **/
static int i40e_get_stats_count(struct net_device *netdev)
{
        struct i40e_netdev_priv *np = netdev_priv(netdev);
        struct i40e_vsi *vsi = np->vsi;
        struct i40e_pf *pf = vsi->back;
        int stats_len;

        if (vsi == pf->vsi[pf->lan_vsi] && pf->hw.partition_id == 1)
                stats_len = I40E_PF_STATS_LEN;
        else
                stats_len = I40E_VSI_STATS_LEN;

        /* The number of stats reported for a given net_device must remain
         * constant throughout the life of that device.
         *
         * This is because the API for obtaining the size, strings, and stats
         * is spread out over three separate ethtool ioctls. There is no safe
         * way to lock the number of stats across these calls, so we must
         * assume that they will never change.
         *
         * Due to this, we report the maximum number of queues, even if not
         * every queue is currently configured. Since we always allocate
         * queues in pairs, we'll just use netdev->num_tx_queues * 2. This
         * works because the num_tx_queues is set at device creation and never
         * changes.
         */
        stats_len += I40E_QUEUE_STATS_LEN * 2 * netdev->num_tx_queues;

        return stats_len;
}

static int i40e_get_sset_count(struct net_device *netdev, int sset)
{
        struct i40e_netdev_priv *np = netdev_priv(netdev);
        struct i40e_vsi *vsi = np->vsi;
        struct i40e_pf *pf = vsi->back;

        switch (sset) {
        case ETH_SS_TEST:
                return I40E_TEST_LEN;
        case ETH_SS_STATS:
                return i40e_get_stats_count(netdev);
        case ETH_SS_PRIV_FLAGS:
                return I40E_PRIV_FLAGS_STR_LEN +
                        (pf->hw.pf_id == 0 ? I40E_GL_PRIV_FLAGS_STR_LEN : 0);
        default:
                return -EOPNOTSUPP;
        }
}

/**
 * i40e_get_pfc_stats - copy HW PFC statistics to formatted structure
 * @pf: the PF device structure
 * @i: the priority value to copy
 *
 * The PFC stats are found as arrays in pf->stats, which is not easy to pass
 * into i40e_add_ethtool_stats. Produce a formatted i40e_pfc_stats structure
 * of the PFC stats for the given priority.
 **/
static inline struct i40e_pfc_stats
i40e_get_pfc_stats(struct i40e_pf *pf, unsigned int i)
{
#define I40E_GET_PFC_STAT(stat, priority) \
        .stat = pf->stats.stat[priority]

        struct i40e_pfc_stats pfc = {
                I40E_GET_PFC_STAT(priority_xon_rx, i),
                I40E_GET_PFC_STAT(priority_xoff_rx, i),
                I40E_GET_PFC_STAT(priority_xon_tx, i),
                I40E_GET_PFC_STAT(priority_xoff_tx, i),
                I40E_GET_PFC_STAT(priority_xon_2_xoff, i),
        };
        return pfc;
}

/**
 * i40e_get_ethtool_stats - copy stat values into supplied buffer
 * @netdev: the netdev to collect stats for
 * @stats: ethtool stats command structure
 * @data: ethtool supplied buffer
 *
 * Copy the stats values for this netdev into the buffer. Expects data to be
 * pre-allocated to the size returned by i40e_get_stats_count.. Note that all
 * statistics must be copied in a static order, and the count must not change
 * for a given netdev. See i40e_get_stats_count for more details.
 *
 * If a statistic is not currently valid (such as a disabled queue), this
 * function reports its value as zero.
 **/
static void i40e_get_ethtool_stats(struct net_device *netdev,
                                   struct ethtool_stats *stats, u64 *data)
{
        struct i40e_netdev_priv *np = netdev_priv(netdev);
        struct i40e_vsi *vsi = np->vsi;
        struct i40e_pf *pf = vsi->back;
        struct i40e_veb *veb = NULL;
        unsigned int i;
        bool veb_stats;
        u64 *p = data;

        i40e_update_stats(vsi);

        i40e_add_ethtool_stats(&data, i40e_get_vsi_stats_struct(vsi),
                               i40e_gstrings_net_stats);

        i40e_add_ethtool_stats(&data, vsi, i40e_gstrings_misc_stats);

        rcu_read_lock();
        for (i = 0; i < netdev->num_tx_queues; i++) {
                i40e_add_queue_stats(&data, READ_ONCE(vsi->tx_rings[i]));
                i40e_add_queue_stats(&data, READ_ONCE(vsi->rx_rings[i]));
        }
        rcu_read_unlock();

        if (vsi != pf->vsi[pf->lan_vsi] || pf->hw.partition_id != 1)
                goto check_data_pointer;

        veb_stats = ((pf->lan_veb != I40E_NO_VEB) &&
                     (pf->lan_veb < I40E_MAX_VEB) &&
                     (pf->flags & I40E_FLAG_VEB_STATS_ENABLED));

        if (veb_stats) {
                veb = pf->veb[pf->lan_veb];
                i40e_update_veb_stats(veb);
        }

        /* If veb stats aren't enabled, pass NULL instead of the veb so that
         * we initialize stats to zero and update the data pointer
         * intelligently
         */
        i40e_add_ethtool_stats(&data, veb_stats ? veb : NULL,
                               i40e_gstrings_veb_stats);

        for (i = 0; i < I40E_MAX_TRAFFIC_CLASS; i++)
                i40e_add_ethtool_stats(&data, veb_stats ? veb : NULL,
                                       i40e_gstrings_veb_tc_stats);

        i40e_add_ethtool_stats(&data, pf, i40e_gstrings_stats);

        for (i = 0; i < I40E_MAX_USER_PRIORITY; i++) {
                struct i40e_pfc_stats pfc = i40e_get_pfc_stats(pf, i);

                i40e_add_ethtool_stats(&data, &pfc, i40e_gstrings_pfc_stats);
        }

check_data_pointer:
        WARN_ONCE(data - p != i40e_get_stats_count(netdev),
                  "ethtool stats count mismatch!");
}

/**
 * i40e_get_stat_strings - copy stat strings into supplied buffer
 * @netdev: the netdev to collect strings for
 * @data: supplied buffer to copy strings into
 *
 * Copy the strings related to stats for this netdev. Expects data to be
 * pre-allocated with the size reported by i40e_get_stats_count. Note that the
 * strings must be copied in a static order and the total count must not
 * change for a given netdev. See i40e_get_stats_count for more details.
 **/
static void i40e_get_stat_strings(struct net_device *netdev, u8 *data)
{
        struct i40e_netdev_priv *np = netdev_priv(netdev);
        struct i40e_vsi *vsi = np->vsi;
        struct i40e_pf *pf = vsi->back;
        unsigned int i;
        u8 *p = data;

        i40e_add_stat_strings(&data, i40e_gstrings_net_stats);

        i40e_add_stat_strings(&data, i40e_gstrings_misc_stats);

        for (i = 0; i < netdev->num_tx_queues; i++) {
                i40e_add_stat_strings(&data, i40e_gstrings_queue_stats,
                                      "tx", i);
                i40e_add_stat_strings(&data, i40e_gstrings_queue_stats,
                                      "rx", i);
        }

        if (vsi != pf->vsi[pf->lan_vsi] || pf->hw.partition_id != 1)
                goto check_data_pointer;

        i40e_add_stat_strings(&data, i40e_gstrings_veb_stats);

        for (i = 0; i < I40E_MAX_TRAFFIC_CLASS; i++)
                i40e_add_stat_strings(&data, i40e_gstrings_veb_tc_stats, i);

        i40e_add_stat_strings(&data, i40e_gstrings_stats);

        for (i = 0; i < I40E_MAX_USER_PRIORITY; i++)
                i40e_add_stat_strings(&data, i40e_gstrings_pfc_stats, i);

check_data_pointer:
        WARN_ONCE(data - p != i40e_get_stats_count(netdev) * ETH_GSTRING_LEN,
                  "stat strings count mismatch!");
}

static void i40e_get_priv_flag_strings(struct net_device *netdev, u8 *data)
{
        struct i40e_netdev_priv *np = netdev_priv(netdev);
        struct i40e_vsi *vsi = np->vsi;
        struct i40e_pf *pf = vsi->back;
        char *p = (char *)data;
        unsigned int i;

        for (i = 0; i < I40E_PRIV_FLAGS_STR_LEN; i++) {
                snprintf(p, ETH_GSTRING_LEN, "%s",
                         i40e_gstrings_priv_flags[i].flag_string);
                p += ETH_GSTRING_LEN;
        }
        if (pf->hw.pf_id != 0)
                return;
        for (i = 0; i < I40E_GL_PRIV_FLAGS_STR_LEN; i++) {
                snprintf(p, ETH_GSTRING_LEN, "%s",
                         i40e_gl_gstrings_priv_flags[i].flag_string);
                p += ETH_GSTRING_LEN;
        }
}

static void i40e_get_strings(struct net_device *netdev, u32 stringset,
                             u8 *data)
{
        switch (stringset) {
        case ETH_SS_TEST:
                memcpy(data, i40e_gstrings_test,
                       I40E_TEST_LEN * ETH_GSTRING_LEN);
                break;
        case ETH_SS_STATS:
                i40e_get_stat_strings(netdev, data);
                break;
        case ETH_SS_PRIV_FLAGS:
                i40e_get_priv_flag_strings(netdev, data);
                break;
        default:
                break;
        }
}

static int i40e_get_ts_info(struct net_device *dev,
                            struct ethtool_ts_info *info)
{
        struct i40e_pf *pf = i40e_netdev_to_pf(dev);

        /* only report HW timestamping if PTP is enabled */
        if (!(pf->flags & I40E_FLAG_PTP))
                return ethtool_op_get_ts_info(dev, info);

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

        if (pf->ptp_clock)
                info->phc_index = ptp_clock_index(pf->ptp_clock);
        else
                info->phc_index = -1;

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

        info->rx_filters = BIT(HWTSTAMP_FILTER_NONE) |
                           BIT(HWTSTAMP_FILTER_PTP_V2_L2_EVENT) |
                           BIT(HWTSTAMP_FILTER_PTP_V2_L2_SYNC) |
                           BIT(HWTSTAMP_FILTER_PTP_V2_L2_DELAY_REQ);

        if (pf->hw_features & I40E_HW_PTP_L4_CAPABLE)
                info->rx_filters |= BIT(HWTSTAMP_FILTER_PTP_V1_L4_SYNC) |
                                    BIT(HWTSTAMP_FILTER_PTP_V1_L4_DELAY_REQ) |
                                    BIT(HWTSTAMP_FILTER_PTP_V2_EVENT) |
                                    BIT(HWTSTAMP_FILTER_PTP_V2_L4_EVENT) |
                                    BIT(HWTSTAMP_FILTER_PTP_V2_SYNC) |
                                    BIT(HWTSTAMP_FILTER_PTP_V2_L4_SYNC) |
                                    BIT(HWTSTAMP_FILTER_PTP_V2_DELAY_REQ) |
                                    BIT(HWTSTAMP_FILTER_PTP_V2_L4_DELAY_REQ);

        return 0;
}

static u64 i40e_link_test(struct net_device *netdev, u64 *data)
{
        struct i40e_netdev_priv *np = netdev_priv(netdev);
        struct i40e_pf *pf = np->vsi->back;
        i40e_status status;
        bool link_up = false;

        netif_info(pf, hw, netdev, "link test\n");
        status = i40e_get_link_status(&pf->hw, &link_up);
        if (status) {
                netif_err(pf, drv, netdev, "link query timed out, please retry test\n");
                *data = 1;
                return *data;
        }

        if (link_up)
                *data = 0;
        else
                *data = 1;

        return *data;
}

static u64 i40e_reg_test(struct net_device *netdev, u64 *data)
{
        struct i40e_netdev_priv *np = netdev_priv(netdev);
        struct i40e_pf *pf = np->vsi->back;

        netif_info(pf, hw, netdev, "register test\n");
        *data = i40e_diag_reg_test(&pf->hw);

        return *data;
}

static u64 i40e_eeprom_test(struct net_device *netdev, u64 *data)
{
        struct i40e_netdev_priv *np = netdev_priv(netdev);
        struct i40e_pf *pf = np->vsi->back;

        netif_info(pf, hw, netdev, "eeprom test\n");
        *data = i40e_diag_eeprom_test(&pf->hw);

        /* forcebly clear the NVM Update state machine */
        pf->hw.nvmupd_state = I40E_NVMUPD_STATE_INIT;

        return *data;
}

static u64 i40e_intr_test(struct net_device *netdev, u64 *data)
{
        struct i40e_netdev_priv *np = netdev_priv(netdev);
        struct i40e_pf *pf = np->vsi->back;
        u16 swc_old = pf->sw_int_count;

        netif_info(pf, hw, netdev, "interrupt test\n");
        wr32(&pf->hw, I40E_PFINT_DYN_CTL0,
             (I40E_PFINT_DYN_CTL0_INTENA_MASK |
              I40E_PFINT_DYN_CTL0_SWINT_TRIG_MASK |
              I40E_PFINT_DYN_CTL0_ITR_INDX_MASK |
              I40E_PFINT_DYN_CTL0_SW_ITR_INDX_ENA_MASK |
              I40E_PFINT_DYN_CTL0_SW_ITR_INDX_MASK));
        usleep_range(1000, 2000);
        *data = (swc_old == pf->sw_int_count);

        return *data;
}

static inline bool i40e_active_vfs(struct i40e_pf *pf)
{
        struct i40e_vf *vfs = pf->vf;
        int i;

        for (i = 0; i < pf->num_alloc_vfs; i++)
                if (test_bit(I40E_VF_STATE_ACTIVE, &vfs[i].vf_states))
                        return true;
        return false;
}

static inline bool i40e_active_vmdqs(struct i40e_pf *pf)
{
        return !!i40e_find_vsi_by_type(pf, I40E_VSI_VMDQ2);
}

static void i40e_diag_test(struct net_device *netdev,
                           struct ethtool_test *eth_test, u64 *data)
{
        struct i40e_netdev_priv *np = netdev_priv(netdev);
        bool if_running = netif_running(netdev);
        struct i40e_pf *pf = np->vsi->back;

        if (eth_test->flags == ETH_TEST_FL_OFFLINE) {
                /* Offline tests */
                netif_info(pf, drv, netdev, "offline testing starting\n");

                set_bit(__I40E_TESTING, pf->state);

                if (i40e_active_vfs(pf) || i40e_active_vmdqs(pf)) {
                        dev_warn(&pf->pdev->dev,
                                 "Please take active VFs and Netqueues offline and restart the adapter before running NIC diagnostics\n");
                        data[I40E_ETH_TEST_REG]         = 1;
                        data[I40E_ETH_TEST_EEPROM]      = 1;
                        data[I40E_ETH_TEST_INTR]        = 1;
                        data[I40E_ETH_TEST_LINK]        = 1;
                        eth_test->flags |= ETH_TEST_FL_FAILED;
                        clear_bit(__I40E_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 */
                        i40e_close(netdev);
                else
                        /* This reset does not affect link - if it is
                         * changed to a type of reset that does affect
                         * link then the following link test would have
                         * to be moved to before the reset
                         */
                        i40e_do_reset(pf, BIT(__I40E_PF_RESET_REQUESTED), true);

                if (i40e_link_test(netdev, &data[I40E_ETH_TEST_LINK]))
                        eth_test->flags |= ETH_TEST_FL_FAILED;

                if (i40e_eeprom_test(netdev, &data[I40E_ETH_TEST_EEPROM]))
                        eth_test->flags |= ETH_TEST_FL_FAILED;

                if (i40e_intr_test(netdev, &data[I40E_ETH_TEST_INTR]))
                        eth_test->flags |= ETH_TEST_FL_FAILED;

                /* run reg test last, a reset is required after it */
                if (i40e_reg_test(netdev, &data[I40E_ETH_TEST_REG]))
                        eth_test->flags |= ETH_TEST_FL_FAILED;

                clear_bit(__I40E_TESTING, pf->state);
                i40e_do_reset(pf, BIT(__I40E_PF_RESET_REQUESTED), true);

                if (if_running)
                        i40e_open(netdev);
        } else {
                /* Online tests */
                netif_info(pf, drv, netdev, "online testing starting\n");

                if (i40e_link_test(netdev, &data[I40E_ETH_TEST_LINK]))
                        eth_test->flags |= ETH_TEST_FL_FAILED;

                /* Offline only tests, not run in online; pass by default */
                data[I40E_ETH_TEST_REG] = 0;
                data[I40E_ETH_TEST_EEPROM] = 0;
                data[I40E_ETH_TEST_INTR] = 0;
        }

skip_ol_tests:

        netif_info(pf, drv, netdev, "testing finished\n");
}

static void i40e_get_wol(struct net_device *netdev,
                         struct ethtool_wolinfo *wol)
{
        struct i40e_netdev_priv *np = netdev_priv(netdev);
        struct i40e_pf *pf = np->vsi->back;
        struct i40e_hw *hw = &pf->hw;
        u16 wol_nvm_bits;

        /* NVM bit on means WoL disabled for the port */
        i40e_read_nvm_word(hw, I40E_SR_NVM_WAKE_ON_LAN, &wol_nvm_bits);
        if ((BIT(hw->port) & wol_nvm_bits) || (hw->partition_id != 1)) {
                wol->supported = 0;
                wol->wolopts = 0;
        } else {
                wol->supported = WAKE_MAGIC;
                wol->wolopts = (pf->wol_en ? WAKE_MAGIC : 0);
        }
}

/**
 * i40e_set_wol - set the WakeOnLAN configuration
 * @netdev: the netdev in question
 * @wol: the ethtool WoL setting data
 **/
static int i40e_set_wol(struct net_device *netdev, struct ethtool_wolinfo *wol)
{
        struct i40e_netdev_priv *np = netdev_priv(netdev);
        struct i40e_pf *pf = np->vsi->back;
        struct i40e_vsi *vsi = np->vsi;
        struct i40e_hw *hw = &pf->hw;
        u16 wol_nvm_bits;

        /* WoL not supported if this isn't the controlling PF on the port */
        if (hw->partition_id != 1) {
                i40e_partition_setting_complaint(pf);
                return -EOPNOTSUPP;
        }

        if (vsi != pf->vsi[pf->lan_vsi])
                return -EOPNOTSUPP;

        /* NVM bit on means WoL disabled for the port */
        i40e_read_nvm_word(hw, I40E_SR_NVM_WAKE_ON_LAN, &wol_nvm_bits);
        if (BIT(hw->port) & wol_nvm_bits)
                return -EOPNOTSUPP;

        /* only magic packet is supported */
        if (wol->wolopts & ~WAKE_MAGIC)
                return -EOPNOTSUPP;

        /* is this a new value? */
        if (pf->wol_en != !!wol->wolopts) {
                pf->wol_en = !!wol->wolopts;
                device_set_wakeup_enable(&pf->pdev->dev, pf->wol_en);
        }

        return 0;
}

static int i40e_set_phys_id(struct net_device *netdev,
                            enum ethtool_phys_id_state state)
{
        struct i40e_netdev_priv *np = netdev_priv(netdev);
        i40e_status ret = 0;
        struct i40e_pf *pf = np->vsi->back;
        struct i40e_hw *hw = &pf->hw;
        int blink_freq = 2;
        u16 temp_status;

        switch (state) {
        case ETHTOOL_ID_ACTIVE:
                if (!(pf->hw_features & I40E_HW_PHY_CONTROLS_LEDS)) {
                        pf->led_status = i40e_led_get(hw);
                } else {
                        if (!(hw->flags & I40E_HW_FLAG_AQ_PHY_ACCESS_CAPABLE))
                                i40e_aq_set_phy_debug(hw, I40E_PHY_DEBUG_ALL,
                                                      NULL);
                        ret = i40e_led_get_phy(hw, &temp_status,
                                               &pf->phy_led_val);
                        pf->led_status = temp_status;
                }
                return blink_freq;
        case ETHTOOL_ID_ON:
                if (!(pf->hw_features & I40E_HW_PHY_CONTROLS_LEDS))
                        i40e_led_set(hw, 0xf, false);
                else
                        ret = i40e_led_set_phy(hw, true, pf->led_status, 0);
                break;
        case ETHTOOL_ID_OFF:
                if (!(pf->hw_features & I40E_HW_PHY_CONTROLS_LEDS))
                        i40e_led_set(hw, 0x0, false);
                else
                        ret = i40e_led_set_phy(hw, false, pf->led_status, 0);
                break;
        case ETHTOOL_ID_INACTIVE:
                if (!(pf->hw_features & I40E_HW_PHY_CONTROLS_LEDS)) {
                        i40e_led_set(hw, pf->led_status, false);
                } else {
                        ret = i40e_led_set_phy(hw, false, pf->led_status,
                                               (pf->phy_led_val |
                                               I40E_PHY_LED_MODE_ORIG));
                        if (!(hw->flags & I40E_HW_FLAG_AQ_PHY_ACCESS_CAPABLE))
                                i40e_aq_set_phy_debug(hw, 0, NULL);
                }
                break;
        default:
                break;
        }
        if (ret)
                return -ENOENT;
        else
                return 0;
}

/* NOTE: i40e hardware uses a conversion factor of 2 for Interrupt
 * Throttle Rate (ITR) ie. ITR(1) = 2us ITR(10) = 20 us, and also
 * 125us (8000 interrupts per second) == ITR(62)
 */

/**
 * __i40e_get_coalesce - get per-queue coalesce settings
 * @netdev: the netdev to check
 * @ec: ethtool coalesce data structure
 * @queue: which queue to pick
 *
 * Gets the per-queue settings for coalescence. Specifically Rx and Tx usecs
 * are per queue. If queue is <0 then we default to queue 0 as the
 * representative value.
 **/
static int __i40e_get_coalesce(struct net_device *netdev,
                               struct ethtool_coalesce *ec,
                               int queue)
{
        struct i40e_netdev_priv *np = netdev_priv(netdev);
        struct i40e_ring *rx_ring, *tx_ring;
        struct i40e_vsi *vsi = np->vsi;

        ec->tx_max_coalesced_frames_irq = vsi->work_limit;
        ec->rx_max_coalesced_frames_irq = vsi->work_limit;

        /* rx and tx usecs has per queue value. If user doesn't specify the
         * queue, return queue 0's value to represent.
         */
        if (queue < 0)
                queue = 0;
        else if (queue >= vsi->num_queue_pairs)
                return -EINVAL;

        rx_ring = vsi->rx_rings[queue];
        tx_ring = vsi->tx_rings[queue];

        if (ITR_IS_DYNAMIC(rx_ring->itr_setting))
                ec->use_adaptive_rx_coalesce = 1;

        if (ITR_IS_DYNAMIC(tx_ring->itr_setting))
                ec->use_adaptive_tx_coalesce = 1;

        ec->rx_coalesce_usecs = rx_ring->itr_setting & ~I40E_ITR_DYNAMIC;
        ec->tx_coalesce_usecs = tx_ring->itr_setting & ~I40E_ITR_DYNAMIC;

        /* we use the _usecs_high to store/set the interrupt rate limit
         * that the hardware supports, that almost but not quite
         * fits the original intent of the ethtool variable,
         * the rx_coalesce_usecs_high limits total interrupts
         * per second from both tx/rx sources.
         */
        ec->rx_coalesce_usecs_high = vsi->int_rate_limit;
        ec->tx_coalesce_usecs_high = vsi->int_rate_limit;

        return 0;
}

/**
 * i40e_get_coalesce - get a netdev's coalesce settings
 * @netdev: the netdev to check
 * @ec: ethtool coalesce data structure
 *
 * Gets the coalesce settings for a particular netdev. Note that if user has
 * modified per-queue settings, this only guarantees to represent queue 0. See
 * __i40e_get_coalesce for more details.
 **/
static int i40e_get_coalesce(struct net_device *netdev,
                             struct ethtool_coalesce *ec)
{
        return __i40e_get_coalesce(netdev, ec, -1);
}

/**
 * i40e_get_per_queue_coalesce - gets coalesce settings for particular queue
 * @netdev: netdev structure
 * @ec: ethtool's coalesce settings
 * @queue: the particular queue to read
 *
 * Will read a specific queue's coalesce settings
 **/
static int i40e_get_per_queue_coalesce(struct net_device *netdev, u32 queue,
                                       struct ethtool_coalesce *ec)
{
        return __i40e_get_coalesce(netdev, ec, queue);
}

/**
 * i40e_set_itr_per_queue - set ITR values for specific queue
 * @vsi: the VSI to set values for
 * @ec: coalesce settings from ethtool
 * @queue: the queue to modify
 *
 * Change the ITR settings for a specific queue.
 **/
static void i40e_set_itr_per_queue(struct i40e_vsi *vsi,
                                   struct ethtool_coalesce *ec,
                                   int queue)
{
        struct i40e_ring *rx_ring = vsi->rx_rings[queue];
        struct i40e_ring *tx_ring = vsi->tx_rings[queue];
        struct i40e_pf *pf = vsi->back;
        struct i40e_hw *hw = &pf->hw;
        struct i40e_q_vector *q_vector;
        u16 intrl;

        intrl = i40e_intrl_usec_to_reg(vsi->int_rate_limit);

        rx_ring->itr_setting = ITR_REG_ALIGN(ec->rx_coalesce_usecs);
        tx_ring->itr_setting = ITR_REG_ALIGN(ec->tx_coalesce_usecs);

        if (ec->use_adaptive_rx_coalesce)
                rx_ring->itr_setting |= I40E_ITR_DYNAMIC;
        else
                rx_ring->itr_setting &= ~I40E_ITR_DYNAMIC;

        if (ec->use_adaptive_tx_coalesce)
                tx_ring->itr_setting |= I40E_ITR_DYNAMIC;
        else
                tx_ring->itr_setting &= ~I40E_ITR_DYNAMIC;

        q_vector = rx_ring->q_vector;
        q_vector->rx.target_itr = ITR_TO_REG(rx_ring->itr_setting);

        q_vector = tx_ring->q_vector;
        q_vector->tx.target_itr = ITR_TO_REG(tx_ring->itr_setting);

        /* The interrupt handler itself will take care of programming
         * the Tx and Rx ITR values based on the values we have entered
         * into the q_vector, no need to write the values now.
         */

        wr32(hw, I40E_PFINT_RATEN(q_vector->reg_idx), intrl);
        i40e_flush(hw);
}

/**
 * __i40e_set_coalesce - set coalesce settings for particular queue
 * @netdev: the netdev to change
 * @ec: ethtool coalesce settings
 * @queue: the queue to change
 *
 * Sets the coalesce settings for a particular queue.
 **/
static int __i40e_set_coalesce(struct net_device *netdev,
                               struct ethtool_coalesce *ec,
                               int queue)
{
        struct i40e_netdev_priv *np = netdev_priv(netdev);
        u16 intrl_reg, cur_rx_itr, cur_tx_itr;
        struct i40e_vsi *vsi = np->vsi;
        struct i40e_pf *pf = vsi->back;
        int i;

        if (ec->tx_max_coalesced_frames_irq || ec->rx_max_coalesced_frames_irq)
                vsi->work_limit = ec->tx_max_coalesced_frames_irq;

        if (queue < 0) {
                cur_rx_itr = vsi->rx_rings[0]->itr_setting;
                cur_tx_itr = vsi->tx_rings[0]->itr_setting;
        } else if (queue < vsi->num_queue_pairs) {
                cur_rx_itr = vsi->rx_rings[queue]->itr_setting;
                cur_tx_itr = vsi->tx_rings[queue]->itr_setting;
        } else {
                netif_info(pf, drv, netdev, "Invalid queue value, queue range is 0 - %d\n",
                           vsi->num_queue_pairs - 1);
                return -EINVAL;
        }

        cur_tx_itr &= ~I40E_ITR_DYNAMIC;
        cur_rx_itr &= ~I40E_ITR_DYNAMIC;

        /* tx_coalesce_usecs_high is ignored, use rx-usecs-high instead */
        if (ec->tx_coalesce_usecs_high != vsi->int_rate_limit) {
                netif_info(pf, drv, netdev, "tx-usecs-high is not used, please program rx-usecs-high\n");
                return -EINVAL;
        }

        if (ec->rx_coalesce_usecs_high > INTRL_REG_TO_USEC(I40E_MAX_INTRL)) {
                netif_info(pf, drv, netdev, "Invalid value, rx-usecs-high range is 0-%lu\n",
                           INTRL_REG_TO_USEC(I40E_MAX_INTRL));
                return -EINVAL;
        }

        if (ec->rx_coalesce_usecs != cur_rx_itr &&
            ec->use_adaptive_rx_coalesce) {
                netif_info(pf, drv, netdev, "RX interrupt moderation cannot be changed if adaptive-rx is enabled.\n");
                return -EINVAL;
        }

        if (ec->rx_coalesce_usecs > I40E_MAX_ITR) {
                netif_info(pf, drv, netdev, "Invalid value, rx-usecs range is 0-8160\n");
                return -EINVAL;
        }

        if (ec->tx_coalesce_usecs != cur_tx_itr &&
            ec->use_adaptive_tx_coalesce) {
                netif_info(pf, drv, netdev, "TX interrupt moderation cannot be changed if adaptive-tx is enabled.\n");
                return -EINVAL;
        }

        if (ec->tx_coalesce_usecs > I40E_MAX_ITR) {
                netif_info(pf, drv, netdev, "Invalid value, tx-usecs range is 0-8160\n");
                return -EINVAL;
        }

        if (ec->use_adaptive_rx_coalesce && !cur_rx_itr)
                ec->rx_coalesce_usecs = I40E_MIN_ITR;

        if (ec->use_adaptive_tx_coalesce && !cur_tx_itr)
                ec->tx_coalesce_usecs = I40E_MIN_ITR;

        intrl_reg = i40e_intrl_usec_to_reg(ec->rx_coalesce_usecs_high);
        vsi->int_rate_limit = INTRL_REG_TO_USEC(intrl_reg);
        if (vsi->int_rate_limit != ec->rx_coalesce_usecs_high) {
                netif_info(pf, drv, netdev, "Interrupt rate limit rounded down to %d\n",
                           vsi->int_rate_limit);
        }

        /* rx and tx usecs has per queue value. If user doesn't specify the
         * queue, apply to all queues.
         */
        if (queue < 0) {
                for (i = 0; i < vsi->num_queue_pairs; i++)
                        i40e_set_itr_per_queue(vsi, ec, i);
        } else {
                i40e_set_itr_per_queue(vsi, ec, queue);
        }

        return 0;
}

/**
 * i40e_set_coalesce - set coalesce settings for every queue on the netdev
 * @netdev: the netdev to change
 * @ec: ethtool coalesce settings
 *
 * This will set each queue to the same coalesce settings.
 **/
static int i40e_set_coalesce(struct net_device *netdev,
                             struct ethtool_coalesce *ec)
{
        return __i40e_set_coalesce(netdev, ec, -1);
}

/**
 * i40e_set_per_queue_coalesce - set specific queue's coalesce settings
 * @netdev: the netdev to change
 * @ec: ethtool's coalesce settings
 * @queue: the queue to change
 *
 * Sets the specified queue's coalesce settings.
 **/
static int i40e_set_per_queue_coalesce(struct net_device *netdev, u32 queue,
                                       struct ethtool_coalesce *ec)
{
        return __i40e_set_coalesce(netdev, ec, queue);
}

/**
 * i40e_get_rss_hash_opts - Get RSS hash Input Set for each flow type
 * @pf: pointer to the physical function struct
 * @cmd: ethtool rxnfc command
 *
 * Returns Success if the flow is supported, else Invalid Input.
 **/
static int i40e_get_rss_hash_opts(struct i40e_pf *pf, struct ethtool_rxnfc *cmd)
{
        struct i40e_hw *hw = &pf->hw;
        u8 flow_pctype = 0;
        u64 i_set = 0;

        cmd->data = 0;

        switch (cmd->flow_type) {
        case TCP_V4_FLOW:
                flow_pctype = I40E_FILTER_PCTYPE_NONF_IPV4_TCP;
                break;
        case UDP_V4_FLOW:
                flow_pctype = I40E_FILTER_PCTYPE_NONF_IPV4_UDP;
                break;
        case TCP_V6_FLOW:
                flow_pctype = I40E_FILTER_PCTYPE_NONF_IPV6_TCP;
                break;
        case UDP_V6_FLOW:
                flow_pctype = I40E_FILTER_PCTYPE_NONF_IPV6_UDP;
                break;