sfxge/common/ef10_mac.c

/*
 * Copyright (c) 2012-2015 Solarflare Communications Inc.
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are met:
 *
 * 1. Redistributions of source code must retain the above copyright notice,
 *    this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright notice,
 *    this list of conditions and the following disclaimer in the documentation
 *    and/or other materials provided with the distribution.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
 * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
 * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
 * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,
 * EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 *
 * The views and conclusions contained in the software and documentation are
 * those of the authors and should not be interpreted as representing official
 * policies, either expressed or implied, of the FreeBSD Project.
 */

#include "efx.h"
#include "efx_impl.h"


#if EFSYS_OPT_HUNTINGTON || EFSYS_OPT_MEDFORD

    __checkReturn   efx_rc_t
ef10_mac_poll(
    __in        efx_nic_t *enp,
    __out       efx_link_mode_t *link_modep)
{
    efx_port_t *epp = &(enp->en_port);
    ef10_link_state_t els;
    efx_rc_t rc;

    if ((rc = ef10_phy_get_link(enp, &els)) != 0)
        goto fail1;

    epp->ep_adv_cap_mask = els.els_adv_cap_mask;
    epp->ep_fcntl = els.els_fcntl;

    *link_modep = els.els_link_mode;

    return (0);

fail1:
    EFSYS_PROBE1(fail1, efx_rc_t, rc);

    *link_modep = EFX_LINK_UNKNOWN;

    return (rc);
}

    __checkReturn   efx_rc_t
ef10_mac_up(
    __in        efx_nic_t *enp,
    __out       boolean_t *mac_upp)
{
    ef10_link_state_t els;
    efx_rc_t rc;

    /*
     * Because EF10 doesn't *require* polling, we can't rely on
     * ef10_mac_poll() being executed to populate epp->ep_mac_up.
     */
    if ((rc = ef10_phy_get_link(enp, &els)) != 0)
        goto fail1;

    *mac_upp = els.els_mac_up;

    return (0);

fail1:
    EFSYS_PROBE1(fail1, efx_rc_t, rc);

    return (rc);
}

/*
 * EF10 adapters use MC_CMD_VADAPTOR_SET_MAC to set the
 * MAC address; the address field in MC_CMD_SET_MAC has no
 * effect.
 * MC_CMD_VADAPTOR_SET_MAC requires mac-spoofing privilege and
 * the port to have no filters or queues active.
 */
static  __checkReturn   efx_rc_t
efx_mcdi_vadapter_set_mac(
    __in        efx_nic_t *enp)
{
    efx_port_t *epp = &(enp->en_port);
    efx_mcdi_req_t req;
    uint8_t payload[MAX(MC_CMD_VADAPTOR_SET_MAC_IN_LEN,
                MC_CMD_VADAPTOR_SET_MAC_OUT_LEN)];
    efx_rc_t rc;

    (void) memset(payload, 0, sizeof (payload));
    req.emr_cmd = MC_CMD_VADAPTOR_SET_MAC;
    req.emr_in_buf = payload;
    req.emr_in_length = MC_CMD_VADAPTOR_SET_MAC_IN_LEN;
    req.emr_out_buf = payload;
    req.emr_out_length = MC_CMD_VADAPTOR_SET_MAC_OUT_LEN;

    MCDI_IN_SET_DWORD(req, VADAPTOR_SET_MAC_IN_UPSTREAM_PORT_ID,
        enp->en_vport_id);
    EFX_MAC_ADDR_COPY(MCDI_IN2(req, uint8_t, VADAPTOR_SET_MAC_IN_MACADDR),
        epp->ep_mac_addr);

    efx_mcdi_execute(enp, &req);

    if (req.emr_rc != 0) {
        rc = req.emr_rc;
        goto fail1;
    }

    return (0);

fail1:
    EFSYS_PROBE1(fail1, efx_rc_t, rc);

    return (rc);
}

    __checkReturn   efx_rc_t
ef10_mac_addr_set(
    __in        efx_nic_t *enp)
{
    efx_rc_t rc;

    if ((rc = efx_mcdi_vadapter_set_mac(enp)) != 0) {
        if (rc != ENOTSUP)
            goto fail1;

        /*
         * Fallback for older Huntington firmware without Vadapter
         * support.
         */
        if ((rc = ef10_mac_reconfigure(enp)) != 0)
            goto fail2;
    }

    return (0);

fail2:
    EFSYS_PROBE(fail2);

fail1:
    EFSYS_PROBE1(fail1, efx_rc_t, rc);

    return (rc);
}

static  __checkReturn   efx_rc_t
efx_mcdi_mtu_set(
    __in        efx_nic_t *enp,
    __in        uint32_t mtu)
{
    efx_mcdi_req_t req;
    uint8_t payload[MAX(MC_CMD_SET_MAC_EXT_IN_LEN,
                MC_CMD_SET_MAC_OUT_LEN)];
    efx_rc_t rc;

    (void) memset(payload, 0, sizeof (payload));
    req.emr_cmd = MC_CMD_SET_MAC;
    req.emr_in_buf = payload;
    req.emr_in_length = MC_CMD_SET_MAC_EXT_IN_LEN;
    req.emr_out_buf = payload;
    req.emr_out_length = MC_CMD_SET_MAC_OUT_LEN;

    /* Only configure the MTU in this call to MC_CMD_SET_MAC */
    MCDI_IN_SET_DWORD(req, SET_MAC_EXT_IN_MTU, mtu);
    MCDI_IN_POPULATE_DWORD_1(req, SET_MAC_EXT_IN_CONTROL,
                SET_MAC_EXT_IN_CFG_MTU, 1);

    efx_mcdi_execute(enp, &req);

    if (req.emr_rc != 0) {
        rc = req.emr_rc;
        goto fail1;
    }

    return (0);

fail1:
    EFSYS_PROBE1(fail1, efx_rc_t, rc);

    return (rc);
}

    __checkReturn   efx_rc_t
ef10_mac_pdu_set(
    __in        efx_nic_t *enp)
{
    efx_port_t *epp = &(enp->en_port);
    efx_nic_cfg_t *encp = &(enp->en_nic_cfg);
    efx_rc_t rc;

    if (encp->enc_enhanced_set_mac_supported) {
        if ((rc = efx_mcdi_mtu_set(enp, epp->ep_mac_pdu)) != 0)
            goto fail1;
    } else {
        /*
         * Fallback for older Huntington firmware, which always
         * configure all of the parameters to MC_CMD_SET_MAC. This isn't
         * suitable for setting the MTU on unpriviliged functions.
         */
        if ((rc = ef10_mac_reconfigure(enp)) != 0)
            goto fail2;
    }

    return (0);

fail2:
    EFSYS_PROBE(fail2);
fail1:
    EFSYS_PROBE1(fail1, efx_rc_t, rc);

    return (rc);
}

__checkReturn   efx_rc_t
ef10_mac_reconfigure(
    __in        efx_nic_t *enp)
{
    efx_port_t *epp = &(enp->en_port);
    efx_mcdi_req_t req;
    uint8_t payload[MAX(MC_CMD_SET_MAC_IN_LEN,
                MC_CMD_SET_MAC_OUT_LEN)];
    efx_rc_t rc;

    (void) memset(payload, 0, sizeof (payload));
    req.emr_cmd = MC_CMD_SET_MAC;
    req.emr_in_buf = payload;
    req.emr_in_length = MC_CMD_SET_MAC_IN_LEN;
    req.emr_out_buf = payload;
    req.emr_out_length = MC_CMD_SET_MAC_OUT_LEN;

    MCDI_IN_SET_DWORD(req, SET_MAC_IN_MTU, epp->ep_mac_pdu);
    MCDI_IN_SET_DWORD(req, SET_MAC_IN_DRAIN, epp->ep_mac_drain ? 1 : 0);
    EFX_MAC_ADDR_COPY(MCDI_IN2(req, uint8_t, SET_MAC_IN_ADDR),
                epp->ep_mac_addr);

    /*
     * Note: The Huntington MAC does not support REJECT_BRDCST.
     * The REJECT_UNCST flag will also prevent multicast traffic
     * from reaching the filters. As Huntington filters drop any
     * traffic that does not match a filter it is ok to leave the
     * MAC running in promiscuous mode. See bug41141.
     *
     * FIXME: Does REJECT_UNCST behave the same way on Medford?
     */
    MCDI_IN_POPULATE_DWORD_2(req, SET_MAC_IN_REJECT,
                    SET_MAC_IN_REJECT_UNCST, 0,
                    SET_MAC_IN_REJECT_BRDCST, 0);

    /*
     * Flow control, whether it is auto-negotiated or not,
     * is set via the PHY advertised capabilities.  When set to
     * automatic the MAC will use the PHY settings to determine
     * the flow control settings.
     */
    MCDI_IN_SET_DWORD(req, SET_MAC_IN_FCNTL, MC_CMD_FCNTL_AUTO);

    /* Do not include the Ethernet frame checksum in RX packets */
    MCDI_IN_POPULATE_DWORD_1(req, SET_MAC_IN_FLAGS,
                    SET_MAC_IN_FLAG_INCLUDE_FCS, 0);

    efx_mcdi_execute_quiet(enp, &req);

    if (req.emr_rc != 0) {
        /*
         * Unprivileged functions cannot control link state,
         * but still need to configure filters.
         */
        if (req.emr_rc != EACCES) {
            rc = req.emr_rc;
            goto fail1;
        }
    }

    /*
     * Apply the filters for the MAC configuration.
     * If the NIC isn't ready to accept filters this may
     * return success without setting anything.
     */
    (void) efx_filter_reconfigure(enp, epp->ep_mac_addr,
                    epp->ep_all_unicst, epp->ep_mulcst,
                    epp->ep_all_mulcst, epp->ep_brdcst,
                    epp->ep_mulcst_addr_list,
                    epp->ep_mulcst_addr_count);

    return (0);

fail1:
    EFSYS_PROBE1(fail1, efx_rc_t, rc);

    return (rc);
}

    __checkReturn           efx_rc_t
ef10_mac_multicast_list_set(
    __in                efx_nic_t *enp)
{
    efx_port_t *epp = &(enp->en_port);
    const efx_mac_ops_t *emop = epp->ep_emop;
    efx_rc_t rc;

    EFSYS_ASSERT(enp->en_family == EFX_FAMILY_HUNTINGTON ||
            enp->en_family == EFX_FAMILY_MEDFORD);

    if ((rc = emop->emo_reconfigure(enp)) != 0)
        goto fail1;

    return (0);

fail1:
    EFSYS_PROBE1(fail1, efx_rc_t, rc);

    return (rc);
}

    __checkReturn   efx_rc_t
ef10_mac_filter_default_rxq_set(
    __in        efx_nic_t *enp,
    __in        efx_rxq_t *erp,
    __in        boolean_t using_rss)
{
    efx_port_t *epp = &(enp->en_port);
    efx_rxq_t *old_rxq;
    boolean_t old_using_rss;
    efx_rc_t rc;

    ef10_filter_get_default_rxq(enp, &old_rxq, &old_using_rss);

    ef10_filter_default_rxq_set(enp, erp, using_rss);

    rc = efx_filter_reconfigure(enp, epp->ep_mac_addr,
                    epp->ep_all_unicst, epp->ep_mulcst,
                    epp->ep_all_mulcst, epp->ep_brdcst,
                    epp->ep_mulcst_addr_list,
                    epp->ep_mulcst_addr_count);

    if (rc != 0)
        goto fail1;

    return (0);

fail1:
    EFSYS_PROBE1(fail1, efx_rc_t, rc);

    ef10_filter_default_rxq_set(enp, old_rxq, old_using_rss);

    return (rc);
}

            void
ef10_mac_filter_default_rxq_clear(
    __in        efx_nic_t *enp)
{
    efx_port_t *epp = &(enp->en_port);

    ef10_filter_default_rxq_clear(enp);

    (void) efx_filter_reconfigure(enp, epp->ep_mac_addr,
                    epp->ep_all_unicst, epp->ep_mulcst,
                    epp->ep_all_mulcst, epp->ep_brdcst,
                    epp->ep_mulcst_addr_list,
                    epp->ep_mulcst_addr_count);
}


#if EFSYS_OPT_LOOPBACK

    __checkReturn   efx_rc_t
ef10_mac_loopback_set(
    __in        efx_nic_t *enp,
    __in        efx_link_mode_t link_mode,
    __in        efx_loopback_type_t loopback_type)
{
    efx_port_t *epp = &(enp->en_port);
    const efx_phy_ops_t *epop = epp->ep_epop;
    efx_loopback_type_t old_loopback_type;
    efx_link_mode_t old_loopback_link_mode;
    efx_rc_t rc;

    /* The PHY object handles this on EF10 */
    old_loopback_type = epp->ep_loopback_type;
    old_loopback_link_mode = epp->ep_loopback_link_mode;
    epp->ep_loopback_type = loopback_type;
    epp->ep_loopback_link_mode = link_mode;

    if ((rc = epop->epo_reconfigure(enp)) != 0)
        goto fail1;

    return (0);

fail1:
    EFSYS_PROBE1(fail1, efx_rc_t, rc);

    epp->ep_loopback_type = old_loopback_type;
    epp->ep_loopback_link_mode = old_loopback_link_mode;

    return (rc);
}

#endif  /* EFSYS_OPT_LOOPBACK */

#if EFSYS_OPT_MAC_STATS

#define EF10_MAC_STAT_READ(_esmp, _field, _eqp)         \
    EFSYS_MEM_READQ((_esmp), (_field) * sizeof (efx_qword_t), _eqp)


    __checkReturn           efx_rc_t
ef10_mac_stats_update(
    __in                efx_nic_t *enp,
    __in                efsys_mem_t *esmp,
    __inout_ecount(EFX_MAC_NSTATS)  efsys_stat_t *stat,
    __inout_opt         uint32_t *generationp)
{
    efx_qword_t value;
    efx_qword_t generation_start;
    efx_qword_t generation_end;

    _NOTE(ARGUNUSED(enp))

    /* Read END first so we don't race with the MC */
    EFSYS_DMA_SYNC_FOR_KERNEL(esmp, 0, EFX_MAC_STATS_SIZE);
    EF10_MAC_STAT_READ(esmp, MC_CMD_MAC_GENERATION_END,
                &generation_end);
    EFSYS_MEM_READ_BARRIER();

    /* TX */
    EF10_MAC_STAT_READ(esmp, MC_CMD_MAC_TX_PKTS, &value);
    EFSYS_STAT_SET_QWORD(&(stat[EFX_MAC_TX_PKTS]), &value);

    EF10_MAC_STAT_READ(esmp, MC_CMD_MAC_TX_CONTROL_PKTS, &value);
    EFSYS_STAT_SUBR_QWORD(&(stat[EFX_MAC_TX_PKTS]), &value);

    EF10_MAC_STAT_READ(esmp, MC_CMD_MAC_TX_PAUSE_PKTS, &value);
    EFSYS_STAT_SET_QWORD(&(stat[EFX_MAC_TX_PAUSE_PKTS]), &value);

    EF10_MAC_STAT_READ(esmp, MC_CMD_MAC_TX_UNICAST_PKTS, &value);
    EFSYS_STAT_SET_QWORD(&(stat[EFX_MAC_TX_UNICST_PKTS]), &value);

    EF10_MAC_STAT_READ(esmp, MC_CMD_MAC_TX_MULTICAST_PKTS, &value);
    EFSYS_STAT_SET_QWORD(&(stat[EFX_MAC_TX_MULTICST_PKTS]), &value);

    EF10_MAC_STAT_READ(esmp, MC_CMD_MAC_TX_BROADCAST_PKTS, &value);
    EFSYS_STAT_SET_QWORD(&(stat[EFX_MAC_TX_BRDCST_PKTS]), &value);

    EF10_MAC_STAT_READ(esmp, MC_CMD_MAC_TX_BYTES, &value);
    EFSYS_STAT_SET_QWORD(&(stat[EFX_MAC_TX_OCTETS]), &value);

    EF10_MAC_STAT_READ(esmp, MC_CMD_MAC_TX_LT64_PKTS, &value);
    EFSYS_STAT_SET_QWORD(&(stat[EFX_MAC_TX_LE_64_PKTS]), &value);
    EF10_MAC_STAT_READ(esmp, MC_CMD_MAC_TX_64_PKTS, &value);
    EFSYS_STAT_SET_QWORD(&(stat[EFX_MAC_TX_LE_64_PKTS]), &value);

    EF10_MAC_STAT_READ(esmp, MC_CMD_MAC_TX_65_TO_127_PKTS, &value);
    EFSYS_STAT_SET_QWORD(&(stat[EFX_MAC_TX_65_TO_127_PKTS]), &value);

    EF10_MAC_STAT_READ(esmp, MC_CMD_MAC_TX_128_TO_255_PKTS, &value);
    EFSYS_STAT_SET_QWORD(&(stat[EFX_MAC_TX_128_TO_255_PKTS]), &value);

    EF10_MAC_STAT_READ(esmp, MC_CMD_MAC_TX_256_TO_511_PKTS, &value);
    EFSYS_STAT_SET_QWORD(&(stat[EFX_MAC_TX_256_TO_511_PKTS]), &value);

    EF10_MAC_STAT_READ(esmp, MC_CMD_MAC_TX_512_TO_1023_PKTS, &value);
    EFSYS_STAT_SET_QWORD(&(stat[EFX_MAC_TX_512_TO_1023_PKTS]), &value);

    EF10_MAC_STAT_READ(esmp, MC_CMD_MAC_TX_1024_TO_15XX_PKTS, &value);
    EFSYS_STAT_SET_QWORD(&(stat[EFX_MAC_TX_1024_TO_15XX_PKTS]), &value);

    EF10_MAC_STAT_READ(esmp, MC_CMD_MAC_TX_15XX_TO_JUMBO_PKTS, &value);
    EFSYS_STAT_SET_QWORD(&(stat[EFX_MAC_TX_GE_15XX_PKTS]), &value);
    EF10_MAC_STAT_READ(esmp, MC_CMD_MAC_TX_GTJUMBO_PKTS, &value);
    EFSYS_STAT_INCR_QWORD(&(stat[EFX_MAC_TX_GE_15XX_PKTS]), &value);

    EF10_MAC_STAT_READ(esmp, MC_CMD_MAC_TX_BAD_FCS_PKTS, &value);
    EFSYS_STAT_SET_QWORD(&(stat[EFX_MAC_TX_ERRORS]), &value);

    EF10_MAC_STAT_READ(esmp, MC_CMD_MAC_TX_SINGLE_COLLISION_PKTS, &value);
    EFSYS_STAT_SET_QWORD(&(stat[EFX_MAC_TX_SGL_COL_PKTS]), &value);

    EF10_MAC_STAT_READ(esmp, MC_CMD_MAC_TX_MULTIPLE_COLLISION_PKTS,
                &value);
    EFSYS_STAT_SET_QWORD(&(stat[EFX_MAC_TX_MULT_COL_PKTS]), &value);

    EF10_MAC_STAT_READ(esmp, MC_CMD_MAC_TX_EXCESSIVE_COLLISION_PKTS,
                &value);
    EFSYS_STAT_SET_QWORD(&(stat[EFX_MAC_TX_EX_COL_PKTS]), &value);

    EF10_MAC_STAT_READ(esmp, MC_CMD_MAC_TX_LATE_COLLISION_PKTS, &value);
    EFSYS_STAT_SET_QWORD(&(stat[EFX_MAC_TX_LATE_COL_PKTS]), &value);

    EF10_MAC_STAT_READ(esmp, MC_CMD_MAC_TX_DEFERRED_PKTS, &value);
    EFSYS_STAT_SET_QWORD(&(stat[EFX_MAC_TX_DEF_PKTS]), &value);

    EF10_MAC_STAT_READ(esmp, MC_CMD_MAC_TX_EXCESSIVE_DEFERRED_PKTS,
        &value);
    EFSYS_STAT_SET_QWORD(&(stat[EFX_MAC_TX_EX_DEF_PKTS]), &value);

    /* RX */
    EF10_MAC_STAT_READ(esmp, MC_CMD_MAC_RX_BYTES, &value);
    EFSYS_STAT_SET_QWORD(&(stat[EFX_MAC_RX_OCTETS]), &value);

    EF10_MAC_STAT_READ(esmp, MC_CMD_MAC_RX_PKTS, &value);
    EFSYS_STAT_SET_QWORD(&(stat[EFX_MAC_RX_PKTS]), &value);

    EF10_MAC_STAT_READ(esmp, MC_CMD_MAC_RX_UNICAST_PKTS, &value);
    EFSYS_STAT_SET_QWORD(&(stat[EFX_MAC_RX_UNICST_PKTS]), &value);

    EF10_MAC_STAT_READ(esmp, MC_CMD_MAC_RX_MULTICAST_PKTS, &value);
    EFSYS_STAT_SET_QWORD(&(stat[EFX_MAC_RX_MULTICST_PKTS]), &value);

    EF10_MAC_STAT_READ(esmp, MC_CMD_MAC_RX_BROADCAST_PKTS, &value);
    EFSYS_STAT_SET_QWORD(&(stat[EFX_MAC_RX_BRDCST_PKTS]), &value);

    EF10_MAC_STAT_READ(esmp, MC_CMD_MAC_RX_PAUSE_PKTS, &value);
    EFSYS_STAT_SET_QWORD(&(stat[EFX_MAC_RX_PAUSE_PKTS]), &value);

    EF10_MAC_STAT_READ(esmp, MC_CMD_MAC_RX_UNDERSIZE_PKTS, &value);
    EFSYS_STAT_SET_QWORD(&(stat[EFX_MAC_RX_LE_64_PKTS]), &value);
    EF10_MAC_STAT_READ(esmp, MC_CMD_MAC_RX_64_PKTS, &value);
    EFSYS_STAT_INCR_QWORD(&(stat[EFX_MAC_RX_LE_64_PKTS]), &value);

    EF10_MAC_STAT_READ(esmp, MC_CMD_MAC_RX_65_TO_127_PKTS, &value);
    EFSYS_STAT_SET_QWORD(&(stat[EFX_MAC_RX_65_TO_127_PKTS]), &value);

    EF10_MAC_STAT_READ(esmp, MC_CMD_MAC_RX_128_TO_255_PKTS, &value);
    EFSYS_STAT_SET_QWORD(&(stat[EFX_MAC_RX_128_TO_255_PKTS]), &value);

    EF10_MAC_STAT_READ(esmp, MC_CMD_MAC_RX_256_TO_511_PKTS, &value);
    EFSYS_STAT_SET_QWORD(&(stat[EFX_MAC_RX_256_TO_511_PKTS]), &value);

    EF10_MAC_STAT_READ(esmp, MC_CMD_MAC_RX_512_TO_1023_PKTS, &value);
    EFSYS_STAT_SET_QWORD(&(stat[EFX_MAC_RX_512_TO_1023_PKTS]), &value);

    EF10_MAC_STAT_READ(esmp, MC_CMD_MAC_RX_1024_TO_15XX_PKTS, &value);
    EFSYS_STAT_SET_QWORD(&(stat[EFX_MAC_RX_1024_TO_15XX_PKTS]), &value);

    EF10_MAC_STAT_READ(esmp, MC_CMD_MAC_RX_15XX_TO_JUMBO_PKTS, &value);
    EFSYS_STAT_SET_QWORD(&(stat[EFX_MAC_RX_GE_15XX_PKTS]), &value);
    EF10_MAC_STAT_READ(esmp, MC_CMD_MAC_RX_GTJUMBO_PKTS, &value);
    EFSYS_STAT_INCR_QWORD(&(stat[EFX_MAC_RX_GE_15XX_PKTS]), &value);

    EF10_MAC_STAT_READ(esmp, MC_CMD_MAC_RX_BAD_FCS_PKTS, &value);
    EFSYS_STAT_SET_QWORD(&(stat[EFX_MAC_RX_FCS_ERRORS]), &value);

    EF10_MAC_STAT_READ(esmp, MC_CMD_MAC_RX_OVERFLOW_PKTS, &value);
    EFSYS_STAT_SET_QWORD(&(stat[EFX_MAC_RX_DROP_EVENTS]), &value);

    EF10_MAC_STAT_READ(esmp, MC_CMD_MAC_RX_FALSE_CARRIER_PKTS, &value);
    EFSYS_STAT_SET_QWORD(&(stat[EFX_MAC_RX_FALSE_CARRIER_ERRORS]), &value);

    EF10_MAC_STAT_READ(esmp, MC_CMD_MAC_RX_SYMBOL_ERROR_PKTS, &value);
    EFSYS_STAT_SET_QWORD(&(stat[EFX_MAC_RX_SYMBOL_ERRORS]), &value);

    EF10_MAC_STAT_READ(esmp, MC_CMD_MAC_RX_ALIGN_ERROR_PKTS, &value);
    EFSYS_STAT_SET_QWORD(&(stat[EFX_MAC_RX_ALIGN_ERRORS]), &value);

    EF10_MAC_STAT_READ(esmp, MC_CMD_MAC_RX_INTERNAL_ERROR_PKTS, &value);
    EFSYS_STAT_SET_QWORD(&(stat[EFX_MAC_RX_INTERNAL_ERRORS]), &value);

    EF10_MAC_STAT_READ(esmp, MC_CMD_MAC_RX_JABBER_PKTS, &value);
    EFSYS_STAT_SET_QWORD(&(stat[EFX_MAC_RX_JABBER_PKTS]), &value);

    EF10_MAC_STAT_READ(esmp, MC_CMD_MAC_RX_LANES01_CHAR_ERR, &value);
    EFSYS_STAT_SET_DWORD(&(stat[EFX_MAC_RX_LANE0_CHAR_ERR]),
                &(value.eq_dword[0]));
    EFSYS_STAT_SET_DWORD(&(stat[EFX_MAC_RX_LANE1_CHAR_ERR]),
                &(value.eq_dword[1]));

    EF10_MAC_STAT_READ(esmp, MC_CMD_MAC_RX_LANES23_CHAR_ERR, &value);
    EFSYS_STAT_SET_DWORD(&(stat[EFX_MAC_RX_LANE2_CHAR_ERR]),
                &(value.eq_dword[0]));
    EFSYS_STAT_SET_DWORD(&(stat[EFX_MAC_RX_LANE3_CHAR_ERR]),
                &(value.eq_dword[1]));

    EF10_MAC_STAT_READ(esmp, MC_CMD_MAC_RX_LANES01_DISP_ERR, &value);
    EFSYS_STAT_SET_DWORD(&(stat[EFX_MAC_RX_LANE0_DISP_ERR]),
                &(value.eq_dword[0]));
    EFSYS_STAT_SET_DWORD(&(stat[EFX_MAC_RX_LANE1_DISP_ERR]),
                &(value.eq_dword[1]));

    EF10_MAC_STAT_READ(esmp, MC_CMD_MAC_RX_LANES23_DISP_ERR, &value);
    EFSYS_STAT_SET_DWORD(&(stat[EFX_MAC_RX_LANE2_DISP_ERR]),
                &(value.eq_dword[0]));
    EFSYS_STAT_SET_DWORD(&(stat[EFX_MAC_RX_LANE3_DISP_ERR]),
                &(value.eq_dword[1]));

    EF10_MAC_STAT_READ(esmp, MC_CMD_MAC_RX_MATCH_FAULT, &value);
    EFSYS_STAT_SET_QWORD(&(stat[EFX_MAC_RX_MATCH_FAULT]), &value);

    EF10_MAC_STAT_READ(esmp, MC_CMD_MAC_RX_NODESC_DROPS, &value);
    EFSYS_STAT_SET_QWORD(&(stat[EFX_MAC_RX_NODESC_DROP_CNT]), &value);

    /* Packet memory (EF10 only) */
    EF10_MAC_STAT_READ(esmp, MC_CMD_MAC_PM_TRUNC_BB_OVERFLOW, &value);
    EFSYS_STAT_SET_QWORD(&(stat[EFX_MAC_PM_TRUNC_BB_OVERFLOW]), &value);

    EF10_MAC_STAT_READ(esmp, MC_CMD_MAC_PM_DISCARD_BB_OVERFLOW, &value);
    EFSYS_STAT_SET_QWORD(&(stat[EFX_MAC_PM_DISCARD_BB_OVERFLOW]), &value);

    EF10_MAC_STAT_READ(esmp, MC_CMD_MAC_PM_TRUNC_VFIFO_FULL, &value);
    EFSYS_STAT_SET_QWORD(&(stat[EFX_MAC_PM_TRUNC_VFIFO_FULL]), &value);

    EF10_MAC_STAT_READ(esmp, MC_CMD_MAC_PM_DISCARD_VFIFO_FULL, &value);
    EFSYS_STAT_SET_QWORD(&(stat[EFX_MAC_PM_DISCARD_VFIFO_FULL]), &value);

    EF10_MAC_STAT_READ(esmp, MC_CMD_MAC_PM_TRUNC_QBB, &value);
    EFSYS_STAT_SET_QWORD(&(stat[EFX_MAC_PM_TRUNC_QBB]), &value);

    EF10_MAC_STAT_READ(esmp, MC_CMD_MAC_PM_DISCARD_QBB, &value);
    EFSYS_STAT_SET_QWORD(&(stat[EFX_MAC_PM_DISCARD_QBB]), &value);

    EF10_MAC_STAT_READ(esmp, MC_CMD_MAC_PM_DISCARD_MAPPING, &value);
    EFSYS_STAT_SET_QWORD(&(stat[EFX_MAC_PM_DISCARD_MAPPING]), &value);

    /* RX datapath */
    EF10_MAC_STAT_READ(esmp, MC_CMD_MAC_RXDP_Q_DISABLED_PKTS, &value);
    EFSYS_STAT_SET_QWORD(&(stat[EFX_MAC_RXDP_Q_DISABLED_PKTS]), &value);

    EF10_MAC_STAT_READ(esmp, MC_CMD_MAC_RXDP_DI_DROPPED_PKTS, &value);
    EFSYS_STAT_SET_QWORD(&(stat[EFX_MAC_RXDP_DI_DROPPED_PKTS]), &value);

    EF10_MAC_STAT_READ(esmp, MC_CMD_MAC_RXDP_STREAMING_PKTS, &value);
    EFSYS_STAT_SET_QWORD(&(stat[EFX_MAC_RXDP_STREAMING_PKTS]), &value);

    EF10_MAC_STAT_READ(esmp, MC_CMD_MAC_RXDP_HLB_FETCH_CONDITIONS, &value);
    EFSYS_STAT_SET_QWORD(&(stat[EFX_MAC_RXDP_HLB_FETCH]), &value);

    EF10_MAC_STAT_READ(esmp, MC_CMD_MAC_RXDP_HLB_WAIT_CONDITIONS, &value);
    EFSYS_STAT_SET_QWORD(&(stat[EFX_MAC_RXDP_HLB_WAIT]), &value);


    /* VADAPTER RX */
    EF10_MAC_STAT_READ(esmp, MC_CMD_MAC_VADAPTER_RX_UNICAST_PACKETS,
        &value);
    EFSYS_STAT_SET_QWORD(&(stat[EFX_MAC_VADAPTER_RX_UNICAST_PACKETS]),
        &value);

    EF10_MAC_STAT_READ(esmp, MC_CMD_MAC_VADAPTER_RX_UNICAST_BYTES,
        &value);
    EFSYS_STAT_SET_QWORD(&(stat[EFX_MAC_VADAPTER_RX_UNICAST_BYTES]),
        &value);

    EF10_MAC_STAT_READ(esmp, MC_CMD_MAC_VADAPTER_RX_MULTICAST_PACKETS,
        &value);
    EFSYS_STAT_SET_QWORD(&(stat[EFX_MAC_VADAPTER_RX_MULTICAST_PACKETS]),
        &value);

    EF10_MAC_STAT_READ(esmp, MC_CMD_MAC_VADAPTER_RX_MULTICAST_BYTES,
        &value);
    EFSYS_STAT_SET_QWORD(&(stat[EFX_MAC_VADAPTER_RX_MULTICAST_BYTES]),
        &value);

    EF10_MAC_STAT_READ(esmp, MC_CMD_MAC_VADAPTER_RX_BROADCAST_PACKETS,
        &value);
    EFSYS_STAT_SET_QWORD(&(stat[EFX_MAC_VADAPTER_RX_BROADCAST_PACKETS]),
        &value);

    EF10_MAC_STAT_READ(esmp, MC_CMD_MAC_VADAPTER_RX_BROADCAST_BYTES,
        &value);
    EFSYS_STAT_SET_QWORD(&(stat[EFX_MAC_VADAPTER_RX_BROADCAST_BYTES]),
        &value);

    EF10_MAC_STAT_READ(esmp, MC_CMD_MAC_VADAPTER_RX_BAD_PACKETS,
        &value);
    EFSYS_STAT_SET_QWORD(&(stat[EFX_MAC_VADAPTER_RX_BAD_PACKETS]),
        &value);

    EF10_MAC_STAT_READ(esmp, MC_CMD_MAC_VADAPTER_RX_BAD_BYTES, &value);
    EFSYS_STAT_SET_QWORD(&(stat[EFX_MAC_VADAPTER_RX_BAD_BYTES]), &value);

    EF10_MAC_STAT_READ(esmp, MC_CMD_MAC_VADAPTER_RX_OVERFLOW, &value);
    EFSYS_STAT_SET_QWORD(&(stat[EFX_MAC_VADAPTER_RX_OVERFLOW]), &value);

    /* VADAPTER TX */
    EF10_MAC_STAT_READ(esmp, MC_CMD_MAC_VADAPTER_TX_UNICAST_PACKETS,
        &value);
    EFSYS_STAT_SET_QWORD(&(stat[EFX_MAC_VADAPTER_TX_UNICAST_PACKETS]),
        &value);

    EF10_MAC_STAT_READ(esmp, MC_CMD_MAC_VADAPTER_TX_UNICAST_BYTES,
        &value);
    EFSYS_STAT_SET_QWORD(&(stat[EFX_MAC_VADAPTER_TX_UNICAST_BYTES]),
        &value);

    EF10_MAC_STAT_READ(esmp, MC_CMD_MAC_VADAPTER_TX_MULTICAST_PACKETS,
        &value);
    EFSYS_STAT_SET_QWORD(&(stat[EFX_MAC_VADAPTER_TX_MULTICAST_PACKETS]),
        &value);

    EF10_MAC_STAT_READ(esmp, MC_CMD_MAC_VADAPTER_TX_MULTICAST_BYTES,
        &value);
    EFSYS_STAT_SET_QWORD(&(stat[EFX_MAC_VADAPTER_TX_MULTICAST_BYTES]),
        &value);

    EF10_MAC_STAT_READ(esmp, MC_CMD_MAC_VADAPTER_TX_BROADCAST_PACKETS,
        &value);
    EFSYS_STAT_SET_QWORD(&(stat[EFX_MAC_VADAPTER_TX_BROADCAST_PACKETS]),
        &value);

    EF10_MAC_STAT_READ(esmp, MC_CMD_MAC_VADAPTER_TX_BROADCAST_BYTES,
        &value);
    EFSYS_STAT_SET_QWORD(&(stat[EFX_MAC_VADAPTER_TX_BROADCAST_BYTES]),
        &value);

    EF10_MAC_STAT_READ(esmp, MC_CMD_MAC_VADAPTER_TX_BAD_PACKETS, &value);
    EFSYS_STAT_SET_QWORD(&(stat[EFX_MAC_VADAPTER_TX_BAD_PACKETS]), &value);

    EF10_MAC_STAT_READ(esmp, MC_CMD_MAC_VADAPTER_TX_BAD_BYTES, &value);
    EFSYS_STAT_SET_QWORD(&(stat[EFX_MAC_VADAPTER_TX_BAD_BYTES]), &value);

    EF10_MAC_STAT_READ(esmp, MC_CMD_MAC_VADAPTER_TX_OVERFLOW, &value);
    EFSYS_STAT_SET_QWORD(&(stat[EFX_MAC_VADAPTER_TX_OVERFLOW]), &value);


    EFSYS_DMA_SYNC_FOR_KERNEL(esmp, 0, EFX_MAC_STATS_SIZE);
    EFSYS_MEM_READ_BARRIER();
    EF10_MAC_STAT_READ(esmp, MC_CMD_MAC_GENERATION_START,
                &generation_start);

    /* Check that we didn't read the stats in the middle of a DMA */
    /* Not a good enough check ? */
    if (memcmp(&generation_start, &generation_end,
        sizeof (generation_start)))
        return (EAGAIN);

    if (generationp)
        *generationp = EFX_QWORD_FIELD(generation_start, EFX_DWORD_0);

    return (0);
}

#endif  /* EFSYS_OPT_MAC_STATS */

#endif  /* EFSYS_OPT_HUNTINGTON || EFSYS_OPT_MEDFORD */