/* bnx2x_stats.c: QLogic Everest network driver.
 *
 * Copyright (c) 2007-2013 Broadcom Corporation
 * Copyright (c) 2014 QLogic Corporation
 * All rights reserved
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation.
 *
 * Maintained by: Ariel Elior <ariel.elior@qlogic.com>
 * Written by: Eliezer Tamir
 * Based on code from Michael Chan's bnx2 driver
 * UDP CSUM errata workaround by Arik Gendelman
 * Slowpath and fastpath rework by Vladislav Zolotarov
 * Statistics and Link management by Yitchak Gertner
 *
 */

#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt

#include "bnx2x_stats.h"
#include "bnx2x_cmn.h"
#include "bnx2x_sriov.h"

/* Statistics */

/*
 * General service functions
 */

static inline long bnx2x_hilo(u32 *hiref)
{
        u32 lo = *(hiref + 1);
#if (BITS_PER_LONG == 64)
        u32 hi = *hiref;

        return HILO_U64(hi, lo);
#else
        return lo;
#endif
}

static inline u16 bnx2x_get_port_stats_dma_len(struct bnx2x *bp)
{
        u16 res = 0;

        /* 'newest' convention - shmem2 cotains the size of the port stats */
        if (SHMEM2_HAS(bp, sizeof_port_stats)) {
                u32 size = SHMEM2_RD(bp, sizeof_port_stats);
                if (size)
                        res = size;

                /* prevent newer BC from causing buffer overflow */
                if (res > sizeof(struct host_port_stats))
                        res = sizeof(struct host_port_stats);
        }

        /* Older convention - all BCs support the port stats' fields up until
         * the 'not_used' field
         */
        if (!res) {
                res = offsetof(struct host_port_stats, not_used) + 4;

                /* if PFC stats are supported by the MFW, DMA them as well */
                if (bp->flags & BC_SUPPORTS_PFC_STATS) {
                        res += offsetof(struct host_port_stats,
                                        pfc_frames_rx_lo) -
                               offsetof(struct host_port_stats,
                                        pfc_frames_tx_hi) + 4 ;
                }
        }

        res >>= 2;

        WARN_ON(res > 2 * DMAE_LEN32_RD_MAX);
        return res;
}

/*
 * Init service functions
 */

static void bnx2x_dp_stats(struct bnx2x *bp)
{
        int i;

        DP(BNX2X_MSG_STATS, "dumping stats:\n"
           "fw_stats_req\n"
           "    hdr\n"
           "        cmd_num %d\n"
           "        reserved0 %d\n"
           "        drv_stats_counter %d\n"
           "        reserved1 %d\n"
           "        stats_counters_addrs %x %x\n",
           bp->fw_stats_req->hdr.cmd_num,
           bp->fw_stats_req->hdr.reserved0,
           bp->fw_stats_req->hdr.drv_stats_counter,
           bp->fw_stats_req->hdr.reserved1,
           bp->fw_stats_req->hdr.stats_counters_addrs.hi,
           bp->fw_stats_req->hdr.stats_counters_addrs.lo);

        for (i = 0; i < bp->fw_stats_req->hdr.cmd_num; i++) {
                DP(BNX2X_MSG_STATS,
                   "query[%d]\n"
                   "              kind %d\n"
                   "              index %d\n"
                   "              funcID %d\n"
                   "              reserved %d\n"
                   "              address %x %x\n",
                   i, bp->fw_stats_req->query[i].kind,
                   bp->fw_stats_req->query[i].index,
                   bp->fw_stats_req->query[i].funcID,
                   bp->fw_stats_req->query[i].reserved,
                   bp->fw_stats_req->query[i].address.hi,
                   bp->fw_stats_req->query[i].address.lo);
        }
}

/* Post the next statistics ramrod. Protect it with the spin in
 * order to ensure the strict order between statistics ramrods
 * (each ramrod has a sequence number passed in a
 * bp->fw_stats_req->hdr.drv_stats_counter and ramrods must be
 * sent in order).
 */
static void bnx2x_storm_stats_post(struct bnx2x *bp)
{
        int rc;

        if (bp->stats_pending)
                return;

        bp->fw_stats_req->hdr.drv_stats_counter =
                cpu_to_le16(bp->stats_counter++);

        DP(BNX2X_MSG_STATS, "Sending statistics ramrod %d\n",
           le16_to_cpu(bp->fw_stats_req->hdr.drv_stats_counter));

        /* adjust the ramrod to include VF queues statistics */
        bnx2x_iov_adjust_stats_req(bp);
        bnx2x_dp_stats(bp);

        /* send FW stats ramrod */
        rc = bnx2x_sp_post(bp, RAMROD_CMD_ID_COMMON_STAT_QUERY, 0,
                           U64_HI(bp->fw_stats_req_mapping),
                           U64_LO(bp->fw_stats_req_mapping),
                           NONE_CONNECTION_TYPE);
        if (rc == 0)
                bp->stats_pending = 1;
}

static void bnx2x_hw_stats_post(struct bnx2x *bp)
{
        struct dmae_command *dmae = &bp->stats_dmae;
        u32 *stats_comp = bnx2x_sp(bp, stats_comp);

        *stats_comp = DMAE_COMP_VAL;
        if (CHIP_REV_IS_SLOW(bp))
                return;

        /* Update MCP's statistics if possible */
        if (bp->func_stx)
                memcpy(bnx2x_sp(bp, func_stats), &bp->func_stats,
                       sizeof(bp->func_stats));

        /* loader */
        if (bp->executer_idx) {
                int loader_idx = PMF_DMAE_C(bp);
                u32 opcode =  bnx2x_dmae_opcode(bp, DMAE_SRC_PCI, DMAE_DST_GRC,
                                                 true, DMAE_COMP_GRC);
                opcode = bnx2x_dmae_opcode_clr_src_reset(opcode);

                memset(dmae, 0, sizeof(struct dmae_command));
                dmae->opcode = opcode;
                dmae->src_addr_lo = U64_LO(bnx2x_sp_mapping(bp, dmae[0]));
                dmae->src_addr_hi = U64_HI(bnx2x_sp_mapping(bp, dmae[0]));
                dmae->dst_addr_lo = (DMAE_REG_CMD_MEM +
                                     sizeof(struct dmae_command) *
                                     (loader_idx + 1)) >> 2;
                dmae->dst_addr_hi = 0;
                dmae->len = sizeof(struct dmae_command) >> 2;
                if (CHIP_IS_E1(bp))
                        dmae->len--;
                dmae->comp_addr_lo = dmae_reg_go_c[loader_idx + 1] >> 2;
                dmae->comp_addr_hi = 0;
                dmae->comp_val = 1;

                *stats_comp = 0;
                bnx2x_post_dmae(bp, dmae, loader_idx);

        } else if (bp->func_stx) {
                *stats_comp = 0;
                bnx2x_issue_dmae_with_comp(bp, dmae, stats_comp);
        }
}

static void bnx2x_stats_comp(struct bnx2x *bp)
{
        u32 *stats_comp = bnx2x_sp(bp, stats_comp);
        int cnt = 10;

        might_sleep();
        while (*stats_comp != DMAE_COMP_VAL) {
                if (!cnt) {
                        BNX2X_ERR("timeout waiting for stats finished\n");
                        break;
                }
                cnt--;
                usleep_range(1000, 2000);
        }
}

/*
 * Statistics service functions
 */

/* should be called under stats_sema */
static void bnx2x_stats_pmf_update(struct bnx2x *bp)
{
        struct dmae_command *dmae;
        u32 opcode;
        int loader_idx = PMF_DMAE_C(bp);
        u32 *stats_comp = bnx2x_sp(bp, stats_comp);

        /* sanity */
        if (!bp->port.pmf || !bp->port.port_stx) {
                BNX2X_ERR("BUG!\n");
                return;
        }

        bp->executer_idx = 0;

        opcode = bnx2x_dmae_opcode(bp, DMAE_SRC_GRC, DMAE_DST_PCI, false, 0);

        dmae = bnx2x_sp(bp, dmae[bp->executer_idx++]);
        dmae->opcode = bnx2x_dmae_opcode_add_comp(opcode, DMAE_COMP_GRC);
        dmae->src_addr_lo = bp->port.port_stx >> 2;
        dmae->src_addr_hi = 0;
        dmae->dst_addr_lo = U64_LO(bnx2x_sp_mapping(bp, port_stats));
        dmae->dst_addr_hi = U64_HI(bnx2x_sp_mapping(bp, port_stats));
        dmae->len = DMAE_LEN32_RD_MAX;
        dmae->comp_addr_lo = dmae_reg_go_c[loader_idx] >> 2;
        dmae->comp_addr_hi = 0;
        dmae->comp_val = 1;

        dmae = bnx2x_sp(bp, dmae[bp->executer_idx++]);
        dmae->opcode = bnx2x_dmae_opcode_add_comp(opcode, DMAE_COMP_PCI);
        dmae->src_addr_lo = (bp->port.port_stx >> 2) + DMAE_LEN32_RD_MAX;
        dmae->src_addr_hi = 0;
        dmae->dst_addr_lo = U64_LO(bnx2x_sp_mapping(bp, port_stats) +
                                   DMAE_LEN32_RD_MAX * 4);
        dmae->dst_addr_hi = U64_HI(bnx2x_sp_mapping(bp, port_stats) +
                                   DMAE_LEN32_RD_MAX * 4);
        dmae->len = bnx2x_get_port_stats_dma_len(bp) - DMAE_LEN32_RD_MAX;

        dmae->comp_addr_lo = U64_LO(bnx2x_sp_mapping(bp, stats_comp));
        dmae->comp_addr_hi = U64_HI(bnx2x_sp_mapping(bp, stats_comp));
        dmae->comp_val = DMAE_COMP_VAL;

        *stats_comp = 0;
        bnx2x_hw_stats_post(bp);
        bnx2x_stats_comp(bp);
}

static void bnx2x_port_stats_init(struct bnx2x *bp)
{
        struct dmae_command *dmae;
        int port = BP_PORT(bp);
        u32 opcode;
        int loader_idx = PMF_DMAE_C(bp);
        u32 mac_addr;
        u32 *stats_comp = bnx2x_sp(bp, stats_comp);

        /* sanity */
        if (!bp->link_vars.link_up || !bp->port.pmf) {
                BNX2X_ERR("BUG!\n");
                return;
        }

        bp->executer_idx = 0;

        /* MCP */
        opcode = bnx2x_dmae_opcode(bp, DMAE_SRC_PCI, DMAE_DST_GRC,
                                    true, DMAE_COMP_GRC);

        if (bp->port.port_stx) {

                dmae = bnx2x_sp(bp, dmae[bp->executer_idx++]);
                dmae->opcode = opcode;
                dmae->src_addr_lo = U64_LO(bnx2x_sp_mapping(bp, port_stats));
                dmae->src_addr_hi = U64_HI(bnx2x_sp_mapping(bp, port_stats));
                dmae->dst_addr_lo = bp->port.port_stx >> 2;
                dmae->dst_addr_hi = 0;
                dmae->len = bnx2x_get_port_stats_dma_len(bp);
                dmae->comp_addr_lo = dmae_reg_go_c[loader_idx] >> 2;
                dmae->comp_addr_hi = 0;
                dmae->comp_val = 1;
        }

        if (bp->func_stx) {

                dmae = bnx2x_sp(bp, dmae[bp->executer_idx++]);
                dmae->opcode = opcode;
                dmae->src_addr_lo = U64_LO(bnx2x_sp_mapping(bp, func_stats));
                dmae->src_addr_hi = U64_HI(bnx2x_sp_mapping(bp, func_stats));
                dmae->dst_addr_lo = bp->func_stx >> 2;
                dmae->dst_addr_hi = 0;
                dmae->len = sizeof(struct host_func_stats) >> 2;
                dmae->comp_addr_lo = dmae_reg_go_c[loader_idx] >> 2;
                dmae->comp_addr_hi = 0;
                dmae->comp_val = 1;
        }

        /* MAC */
        opcode = bnx2x_dmae_opcode(bp, DMAE_SRC_GRC, DMAE_DST_PCI,
                                   true, DMAE_COMP_GRC);

        /* EMAC is special */
        if (bp->link_vars.mac_type == MAC_TYPE_EMAC) {
                mac_addr = (port ? GRCBASE_EMAC1 : GRCBASE_EMAC0);

                /* EMAC_REG_EMAC_RX_STAT_AC (EMAC_REG_EMAC_RX_STAT_AC_COUNT)*/
                dmae = bnx2x_sp(bp, dmae[bp->executer_idx++]);
                dmae->opcode = opcode;
                dmae->src_addr_lo = (mac_addr +
                                     EMAC_REG_EMAC_RX_STAT_AC) >> 2;
                dmae->src_addr_hi = 0;
                dmae->dst_addr_lo = U64_LO(bnx2x_sp_mapping(bp, mac_stats));
                dmae->dst_addr_hi = U64_HI(bnx2x_sp_mapping(bp, mac_stats));
                dmae->len = EMAC_REG_EMAC_RX_STAT_AC_COUNT;
                dmae->comp_addr_lo = dmae_reg_go_c[loader_idx] >> 2;
                dmae->comp_addr_hi = 0;
                dmae->comp_val = 1;

                /* EMAC_REG_EMAC_RX_STAT_AC_28 */
                dmae = bnx2x_sp(bp, dmae[bp->executer_idx++]);
                dmae->opcode = opcode;
                dmae->src_addr_lo = (mac_addr +
                                     EMAC_REG_EMAC_RX_STAT_AC_28) >> 2;
                dmae->src_addr_hi = 0;
                dmae->dst_addr_lo = U64_LO(bnx2x_sp_mapping(bp, mac_stats) +
                     offsetof(struct emac_stats, rx_stat_falsecarriererrors));
                dmae->dst_addr_hi = U64_HI(bnx2x_sp_mapping(bp, mac_stats) +
                     offsetof(struct emac_stats, rx_stat_falsecarriererrors));
                dmae->len = 1;
                dmae->comp_addr_lo = dmae_reg_go_c[loader_idx] >> 2;
                dmae->comp_addr_hi = 0;
                dmae->comp_val = 1;

                /* EMAC_REG_EMAC_TX_STAT_AC (EMAC_REG_EMAC_TX_STAT_AC_COUNT)*/
                dmae = bnx2x_sp(bp, dmae[bp->executer_idx++]);
                dmae->opcode = opcode;
                dmae->src_addr_lo = (mac_addr +
                                     EMAC_REG_EMAC_TX_STAT_AC) >> 2;
                dmae->src_addr_hi = 0;
                dmae->dst_addr_lo = U64_LO(bnx2x_sp_mapping(bp, mac_stats) +
                        offsetof(struct emac_stats, tx_stat_ifhcoutoctets));
                dmae->dst_addr_hi = U64_HI(bnx2x_sp_mapping(bp, mac_stats) +
                        offsetof(struct emac_stats, tx_stat_ifhcoutoctets));
                dmae->len = EMAC_REG_EMAC_TX_STAT_AC_COUNT;
                dmae->comp_addr_lo = dmae_reg_go_c[loader_idx] >> 2;
                dmae->comp_addr_hi = 0;
                dmae->comp_val = 1;
        } else {
                u32 tx_src_addr_lo, rx_src_addr_lo;
                u16 rx_len, tx_len;

                /* configure the params according to MAC type */
                switch (bp->link_vars.mac_type) {
                case MAC_TYPE_BMAC:
                        mac_addr = (port ? NIG_REG_INGRESS_BMAC1_MEM :
                                           NIG_REG_INGRESS_BMAC0_MEM);

                        /* BIGMAC_REGISTER_TX_STAT_GTPKT ..
                           BIGMAC_REGISTER_TX_STAT_GTBYT */
                        if (CHIP_IS_E1x(bp)) {
                                tx_src_addr_lo = (mac_addr +
                                        BIGMAC_REGISTER_TX_STAT_GTPKT) >> 2;
                                tx_len = (8 + BIGMAC_REGISTER_TX_STAT_GTBYT -
                                          BIGMAC_REGISTER_TX_STAT_GTPKT) >> 2;
                                rx_src_addr_lo = (mac_addr +
                                        BIGMAC_REGISTER_RX_STAT_GR64) >> 2;
                                rx_len = (8 + BIGMAC_REGISTER_RX_STAT_GRIPJ -
                                          BIGMAC_REGISTER_RX_STAT_GR64) >> 2;
                        } else {
                                tx_src_addr_lo = (mac_addr +
                                        BIGMAC2_REGISTER_TX_STAT_GTPOK) >> 2;
                                tx_len = (8 + BIGMAC2_REGISTER_TX_STAT_GTBYT -
                                          BIGMAC2_REGISTER_TX_STAT_GTPOK) >> 2;
                                rx_src_addr_lo = (mac_addr +
                                        BIGMAC2_REGISTER_RX_STAT_GR64) >> 2;
                                rx_len = (8 + BIGMAC2_REGISTER_RX_STAT_GRIPJ -
                                          BIGMAC2_REGISTER_RX_STAT_GR64) >> 2;
                        }
                        break;

                case MAC_TYPE_UMAC: /* handled by MSTAT */
                case MAC_TYPE_XMAC: /* handled by MSTAT */
                default:
                        mac_addr = port ? GRCBASE_MSTAT1 : GRCBASE_MSTAT0;
                        tx_src_addr_lo = (mac_addr +
                                          MSTAT_REG_TX_STAT_GTXPOK_LO) >> 2;
                        rx_src_addr_lo = (mac_addr +
                                          MSTAT_REG_RX_STAT_GR64_LO) >> 2;
                        tx_len = sizeof(bp->slowpath->
                                        mac_stats.mstat_stats.stats_tx) >> 2;
                        rx_len = sizeof(bp->slowpath->
                                        mac_stats.mstat_stats.stats_rx) >> 2;
                        break;
                }

                /* TX stats */
                dmae = bnx2x_sp(bp, dmae[bp->executer_idx++]);
                dmae->opcode = opcode;
                dmae->src_addr_lo = tx_src_addr_lo;
                dmae->src_addr_hi = 0;
                dmae->len = tx_len;
                dmae->dst_addr_lo = U64_LO(bnx2x_sp_mapping(bp, mac_stats));
                dmae->dst_addr_hi = U64_HI(bnx2x_sp_mapping(bp, mac_stats));
                dmae->comp_addr_lo = dmae_reg_go_c[loader_idx] >> 2;
                dmae->comp_addr_hi = 0;
                dmae->comp_val = 1;

                /* RX stats */
                dmae = bnx2x_sp(bp, dmae[bp->executer_idx++]);
                dmae->opcode = opcode;
                dmae->src_addr_hi = 0;
                dmae->src_addr_lo = rx_src_addr_lo;
                dmae->dst_addr_lo =
                        U64_LO(bnx2x_sp_mapping(bp, mac_stats) + (tx_len << 2));
                dmae->dst_addr_hi =
                        U64_HI(bnx2x_sp_mapping(bp, mac_stats) + (tx_len << 2));
                dmae->len = rx_len;
                dmae->comp_addr_lo = dmae_reg_go_c[loader_idx] >> 2;
                dmae->comp_addr_hi = 0;
                dmae->comp_val = 1;
        }

        /* NIG */
        if (!CHIP_IS_E3(bp)) {
                dmae = bnx2x_sp(bp, dmae[bp->executer_idx++]);
                dmae->opcode = opcode;
                dmae->src_addr_lo = (port ? NIG_REG_STAT1_EGRESS_MAC_PKT0 :
                                            NIG_REG_STAT0_EGRESS_MAC_PKT0) >> 2;
                dmae->src_addr_hi = 0;
                dmae->dst_addr_lo = U64_LO(bnx2x_sp_mapping(bp, nig_stats) +
                                offsetof(struct nig_stats, egress_mac_pkt0_lo));
                dmae->dst_addr_hi = U64_HI(bnx2x_sp_mapping(bp, nig_stats) +
                                offsetof(struct nig_stats, egress_mac_pkt0_lo));
                dmae->len = (2*sizeof(u32)) >> 2;
                dmae->comp_addr_lo = dmae_reg_go_c[loader_idx] >> 2;
                dmae->comp_addr_hi = 0;
                dmae->comp_val = 1;

                dmae = bnx2x_sp(bp, dmae[bp->executer_idx++]);
                dmae->opcode = opcode;
                dmae->src_addr_lo = (port ? NIG_REG_STAT1_EGRESS_MAC_PKT1 :
                                            NIG_REG_STAT0_EGRESS_MAC_PKT1) >> 2;
                dmae->src_addr_hi = 0;
                dmae->dst_addr_lo = U64_LO(bnx2x_sp_mapping(bp, nig_stats) +
                                offsetof(struct nig_stats, egress_mac_pkt1_lo));
                dmae->dst_addr_hi = U64_HI(bnx2x_sp_mapping(bp, nig_stats) +
                                offsetof(struct nig_stats, egress_mac_pkt1_lo));
                dmae->len = (2*sizeof(u32)) >> 2;
                dmae->comp_addr_lo = dmae_reg_go_c[loader_idx] >> 2;
                dmae->comp_addr_hi = 0;
                dmae->comp_val = 1;
        }

        dmae = bnx2x_sp(bp, dmae[bp->executer_idx++]);
        dmae->opcode = bnx2x_dmae_opcode(bp, DMAE_SRC_GRC, DMAE_DST_PCI,
                                                 true, DMAE_COMP_PCI);
        dmae->src_addr_lo = (port ? NIG_REG_STAT1_BRB_DISCARD :
                                    NIG_REG_STAT0_BRB_DISCARD) >> 2;
        dmae->src_addr_hi = 0;
        dmae->dst_addr_lo = U64_LO(bnx2x_sp_mapping(bp, nig_stats));
        dmae->dst_addr_hi = U64_HI(bnx2x_sp_mapping(bp, nig_stats));
        dmae->len = (sizeof(struct nig_stats) - 4*sizeof(u32)) >> 2;

        dmae->comp_addr_lo = U64_LO(bnx2x_sp_mapping(bp, stats_comp));
        dmae->comp_addr_hi = U64_HI(bnx2x_sp_mapping(bp, stats_comp));
        dmae->comp_val = DMAE_COMP_VAL;

        *stats_comp = 0;
}

static void bnx2x_func_stats_init(struct bnx2x *bp)
{
        struct dmae_command *dmae = &bp->stats_dmae;
        u32 *stats_comp = bnx2x_sp(bp, stats_comp);

        /* sanity */
        if (!bp->func_stx) {
                BNX2X_ERR("BUG!\n");
                return;
        }

        bp->executer_idx = 0;
        memset(dmae, 0, sizeof(struct dmae_command));

        dmae->opcode = bnx2x_dmae_opcode(bp, DMAE_SRC_PCI, DMAE_DST_GRC,
                                         true, DMAE_COMP_PCI);
        dmae->src_addr_lo = U64_LO(bnx2x_sp_mapping(bp, func_stats));
        dmae->src_addr_hi = U64_HI(bnx2x_sp_mapping(bp, func_stats));
        dmae->dst_addr_lo = bp->func_stx >> 2;
        dmae->dst_addr_hi = 0;
        dmae->len = sizeof(struct host_func_stats) >> 2;
        dmae->comp_addr_lo = U64_LO(bnx2x_sp_mapping(bp, stats_comp));
        dmae->comp_addr_hi = U64_HI(bnx2x_sp_mapping(bp, stats_comp));
        dmae->comp_val = DMAE_COMP_VAL;

        *stats_comp = 0;
}

/* should be called under stats_sema */
static void bnx2x_stats_start(struct bnx2x *bp)
{
        if (IS_PF(bp)) {
                if (bp->port.pmf)
                        bnx2x_port_stats_init(bp);

                else if (bp->func_stx)
                        bnx2x_func_stats_init(bp);

                bnx2x_hw_stats_post(bp);
                bnx2x_storm_stats_post(bp);
        }
}

static void bnx2x_stats_pmf_start(struct bnx2x *bp)
{
        bnx2x_stats_comp(bp);
        bnx2x_stats_pmf_update(bp);
        bnx2x_stats_start(bp);
}

static void bnx2x_stats_restart(struct bnx2x *bp)
{
        /* vfs travel through here as part of the statistics FSM, but no action
         * is required
         */
        if (IS_VF(bp))
                return;

        bnx2x_stats_comp(bp);
        bnx2x_stats_start(bp);
}

static void bnx2x_bmac_stats_update(struct bnx2x *bp)
{
        struct host_port_stats *pstats = bnx2x_sp(bp, port_stats);
        struct bnx2x_eth_stats *estats = &bp->eth_stats;
        struct {
                u32 lo;
                u32 hi;
        } diff;

        if (CHIP_IS_E1x(bp)) {
                struct bmac1_stats *new = bnx2x_sp(bp, mac_stats.bmac1_stats);

                /* the macros below will use "bmac1_stats" type */
                UPDATE_STAT64(rx_stat_grerb, rx_stat_ifhcinbadoctets);
                UPDATE_STAT64(rx_stat_grfcs, rx_stat_dot3statsfcserrors);
                UPDATE_STAT64(rx_stat_grund, rx_stat_etherstatsundersizepkts);
                UPDATE_STAT64(rx_stat_grovr, rx_stat_dot3statsframestoolong);
                UPDATE_STAT64(rx_stat_grfrg, rx_stat_etherstatsfragments);
                UPDATE_STAT64(rx_stat_grjbr, rx_stat_etherstatsjabbers);
                UPDATE_STAT64(rx_stat_grxcf, rx_stat_maccontrolframesreceived);
                UPDATE_STAT64(rx_stat_grxpf, rx_stat_xoffstateentered);
                UPDATE_STAT64(rx_stat_grxpf, rx_stat_mac_xpf);

                UPDATE_STAT64(tx_stat_gtxpf, tx_stat_outxoffsent);
                UPDATE_STAT64(tx_stat_gtxpf, tx_stat_flowcontroldone);
                UPDATE_STAT64(tx_stat_gt64, tx_stat_etherstatspkts64octets);
                UPDATE_STAT64(tx_stat_gt127,
                                tx_stat_etherstatspkts65octetsto127octets);
                UPDATE_STAT64(tx_stat_gt255,
                                tx_stat_etherstatspkts128octetsto255octets);
                UPDATE_STAT64(tx_stat_gt511,
                                tx_stat_etherstatspkts256octetsto511octets);
                UPDATE_STAT64(tx_stat_gt1023,
                                tx_stat_etherstatspkts512octetsto1023octets);
                UPDATE_STAT64(tx_stat_gt1518,
                                tx_stat_etherstatspkts1024octetsto1522octets);
                UPDATE_STAT64(tx_stat_gt2047, tx_stat_mac_2047);
                UPDATE_STAT64(tx_stat_gt4095, tx_stat_mac_4095);
                UPDATE_STAT64(tx_stat_gt9216, tx_stat_mac_9216);
                UPDATE_STAT64(tx_stat_gt16383, tx_stat_mac_16383);
                UPDATE_STAT64(tx_stat_gterr,
                                tx_stat_dot3statsinternalmactransmiterrors);
                UPDATE_STAT64(tx_stat_gtufl, tx_stat_mac_ufl);

        } else {
                struct bmac2_stats *new = bnx2x_sp(bp, mac_stats.bmac2_stats);

                /* the macros below will use "bmac2_stats" type */
                UPDATE_STAT64(rx_stat_grerb, rx_stat_ifhcinbadoctets);
                UPDATE_STAT64(rx_stat_grfcs, rx_stat_dot3statsfcserrors);
                UPDATE_STAT64(rx_stat_grund, rx_stat_etherstatsundersizepkts);
                UPDATE_STAT64(rx_stat_grovr, rx_stat_dot3statsframestoolong);
                UPDATE_STAT64(rx_stat_grfrg, rx_stat_etherstatsfragments);
                UPDATE_STAT64(rx_stat_grjbr, rx_stat_etherstatsjabbers);
                UPDATE_STAT64(rx_stat_grxcf, rx_stat_maccontrolframesreceived);
                UPDATE_STAT64(rx_stat_grxpf, rx_stat_xoffstateentered);
                UPDATE_STAT64(rx_stat_grxpf, rx_stat_mac_xpf);
                UPDATE_STAT64(tx_stat_gtxpf, tx_stat_outxoffsent);
                UPDATE_STAT64(tx_stat_gtxpf, tx_stat_flowcontroldone);
                UPDATE_STAT64(tx_stat_gt64, tx_stat_etherstatspkts64octets);
                UPDATE_STAT64(tx_stat_gt127,
                                tx_stat_etherstatspkts65octetsto127octets);
                UPDATE_STAT64(tx_stat_gt255,
                                tx_stat_etherstatspkts128octetsto255octets);
                UPDATE_STAT64(tx_stat_gt511,
                                tx_stat_etherstatspkts256octetsto511octets);
                UPDATE_STAT64(tx_stat_gt1023,
                                tx_stat_etherstatspkts512octetsto1023octets);
                UPDATE_STAT64(tx_stat_gt1518,
                                tx_stat_etherstatspkts1024octetsto1522octets);
                UPDATE_STAT64(tx_stat_gt2047, tx_stat_mac_2047);
                UPDATE_STAT64(tx_stat_gt4095, tx_stat_mac_4095);
                UPDATE_STAT64(tx_stat_gt9216, tx_stat_mac_9216);
                UPDATE_STAT64(tx_stat_gt16383, tx_stat_mac_16383);
                UPDATE_STAT64(tx_stat_gterr,
                                tx_stat_dot3statsinternalmactransmiterrors);
                UPDATE_STAT64(tx_stat_gtufl, tx_stat_mac_ufl);

                /* collect PFC stats */
                pstats->pfc_frames_tx_hi = new->tx_stat_gtpp_hi;
                pstats->pfc_frames_tx_lo = new->tx_stat_gtpp_lo;

                pstats->pfc_frames_rx_hi = new->rx_stat_grpp_hi;
                pstats->pfc_frames_rx_lo = new->rx_stat_grpp_lo;
        }

        estats->pause_frames_received_hi =
                                pstats->mac_stx[1].rx_stat_mac_xpf_hi;
        estats->pause_frames_received_lo =
                                pstats->mac_stx[1].rx_stat_mac_xpf_lo;

        estats->pause_frames_sent_hi =
                                pstats->mac_stx[1].tx_stat_outxoffsent_hi;
        estats->pause_frames_sent_lo =
                                pstats->mac_stx[1].tx_stat_outxoffsent_lo;

        estats->pfc_frames_received_hi =
                                pstats->pfc_frames_rx_hi;
        estats->pfc_frames_received_lo =
                                pstats->pfc_frames_rx_lo;
        estats->pfc_frames_sent_hi =
                                pstats->pfc_frames_tx_hi;
        estats->pfc_frames_sent_lo =
                                pstats->pfc_frames_tx_lo;
}

static void bnx2x_mstat_stats_update(struct bnx2x *bp)
{
        struct host_port_stats *pstats = bnx2x_sp(bp, port_stats);
        struct bnx2x_eth_stats *estats = &bp->eth_stats;

        struct mstat_stats *new = bnx2x_sp(bp, mac_stats.mstat_stats);

        ADD_STAT64(stats_rx.rx_grerb, rx_stat_ifhcinbadoctets);
        ADD_STAT64(stats_rx.rx_grfcs, rx_stat_dot3statsfcserrors);
        ADD_STAT64(stats_rx.rx_grund, rx_stat_etherstatsundersizepkts);
        ADD_STAT64(stats_rx.rx_grovr, rx_stat_dot3statsframestoolong);
        ADD_STAT64(stats_rx.rx_grfrg, rx_stat_etherstatsfragments);
        ADD_STAT64(stats_rx.rx_grxcf, rx_stat_maccontrolframesreceived);
        ADD_STAT64(stats_rx.rx_grxpf, rx_stat_xoffstateentered);
        ADD_STAT64(stats_rx.rx_grxpf, rx_stat_mac_xpf);
        ADD_STAT64(stats_tx.tx_gtxpf, tx_stat_outxoffsent);
        ADD_STAT64(stats_tx.tx_gtxpf, tx_stat_flowcontroldone);

        /* collect pfc stats */
        ADD_64(pstats->pfc_frames_tx_hi, new->stats_tx.tx_gtxpp_hi,
                pstats->pfc_frames_tx_lo, new->stats_tx.tx_gtxpp_lo);
        ADD_64(pstats->pfc_frames_rx_hi, new->stats_rx.rx_grxpp_hi,
                pstats->pfc_frames_rx_lo, new->stats_rx.rx_grxpp_lo);

        ADD_STAT64(stats_tx.tx_gt64, tx_stat_etherstatspkts64octets);
        ADD_STAT64(stats_tx.tx_gt127,
                        tx_stat_etherstatspkts65octetsto127octets);
        ADD_STAT64(stats_tx.tx_gt255,
                        tx_stat_etherstatspkts128octetsto255octets);
        ADD_STAT64(stats_tx.tx_gt511,
                        tx_stat_etherstatspkts256octetsto511octets);
        ADD_STAT64(stats_tx.tx_gt1023,
                        tx_stat_etherstatspkts512octetsto1023octets);
        ADD_STAT64(stats_tx.tx_gt1518,
                        tx_stat_etherstatspkts1024octetsto1522octets);
        ADD_STAT64(stats_tx.tx_gt2047, tx_stat_mac_2047);

        ADD_STAT64(stats_tx.tx_gt4095, tx_stat_mac_4095);
        ADD_STAT64(stats_tx.tx_gt9216, tx_stat_mac_9216);
        ADD_STAT64(stats_tx.tx_gt16383, tx_stat_mac_16383);

        ADD_STAT64(stats_tx.tx_gterr,
                        tx_stat_dot3statsinternalmactransmiterrors);
        ADD_STAT64(stats_tx.tx_gtufl, tx_stat_mac_ufl);

        estats->etherstatspkts1024octetsto1522octets_hi =
            pstats->mac_stx[1].tx_stat_etherstatspkts1024octetsto1522octets_hi;
        estats->etherstatspkts1024octetsto1522octets_lo =
            pstats->mac_stx[1].tx_stat_etherstatspkts1024octetsto1522octets_lo;

        estats->etherstatspktsover1522octets_hi =
            pstats->mac_stx[1].tx_stat_mac_2047_hi;
        estats->etherstatspktsover1522octets_lo =
            pstats->mac_stx[1].tx_stat_mac_2047_lo;

        ADD_64(estats->etherstatspktsover1522octets_hi,
               pstats->mac_stx[1].tx_stat_mac_4095_hi,
               estats->etherstatspktsover1522octets_lo,
               pstats->mac_stx[1].tx_stat_mac_4095_lo);

        ADD_64(estats->etherstatspktsover1522octets_hi,
               pstats->mac_stx[1].tx_stat_mac_9216_hi,
               estats->etherstatspktsover1522octets_lo,
               pstats->mac_stx[1].tx_stat_mac_9216_lo);

        ADD_64(estats->etherstatspktsover1522octets_hi,
               pstats->mac_stx[1].tx_stat_mac_16383_hi,
               estats->etherstatspktsover1522octets_lo,
               pstats->mac_stx[1].tx_stat_mac_16383_lo);

        estats->pause_frames_received_hi =
                                pstats->mac_stx[1].rx_stat_mac_xpf_hi;
        estats->pause_frames_received_lo =
                                pstats->mac_stx[1].rx_stat_mac_xpf_lo;

        estats->pause_frames_sent_hi =
                                pstats->mac_stx[1].tx_stat_outxoffsent_hi;
        estats->pause_frames_sent_lo =
                                pstats->mac_stx[1].tx_stat_outxoffsent_lo;

        estats->pfc_frames_received_hi =
                                pstats->pfc_frames_rx_hi;
        estats->pfc_frames_received_lo =
                                pstats->pfc_frames_rx_lo;
        estats->pfc_frames_sent_hi =
                                pstats->pfc_frames_tx_hi;
        estats->pfc_frames_sent_lo =
                                pstats->pfc_frames_tx_lo;
}

static void bnx2x_emac_stats_update(struct bnx2x *bp)
{
        struct emac_stats *new = bnx2x_sp(bp, mac_stats.emac_stats);
        struct host_port_stats *pstats = bnx2x_sp(bp, port_stats);
        struct bnx2x_eth_stats *estats = &bp->eth_stats;

        UPDATE_EXTEND_STAT(rx_stat_ifhcinbadoctets);
        UPDATE_EXTEND_STAT(tx_stat_ifhcoutbadoctets);
        UPDATE_EXTEND_STAT(rx_stat_dot3statsfcserrors);
        UPDATE_EXTEND_STAT(rx_stat_dot3statsalignmenterrors);
        UPDATE_EXTEND_STAT(rx_stat_dot3statscarriersenseerrors);
        UPDATE_EXTEND_STAT(rx_stat_falsecarriererrors);
        UPDATE_EXTEND_STAT(rx_stat_etherstatsundersizepkts);
        UPDATE_EXTEND_STAT(rx_stat_dot3statsframestoolong);
        UPDATE_EXTEND_STAT(rx_stat_etherstatsfragments);
        UPDATE_EXTEND_STAT(rx_stat_etherstatsjabbers);
        UPDATE_EXTEND_STAT(rx_stat_maccontrolframesreceived);
        UPDATE_EXTEND_STAT(rx_stat_xoffstateentered);
        UPDATE_EXTEND_STAT(rx_stat_xonpauseframesreceived);
        UPDATE_EXTEND_STAT(rx_stat_xoffpauseframesreceived);
        UPDATE_EXTEND_STAT(tx_stat_outxonsent);
        UPDATE_EXTEND_STAT(tx_stat_outxoffsent);
        UPDATE_EXTEND_STAT(tx_stat_flowcontroldone);
        UPDATE_EXTEND_STAT(tx_stat_etherstatscollisions);
        UPDATE_EXTEND_STAT(tx_stat_dot3statssinglecollisionframes);
        UPDATE_EXTEND_STAT(tx_stat_dot3statsmultiplecollisionframes);
        UPDATE_EXTEND_STAT(tx_stat_dot3statsdeferredtransmissions);
        UPDATE_EXTEND_STAT(tx_stat_dot3statsexcessivecollisions);
        UPDATE_EXTEND_STAT(tx_stat_dot3statslatecollisions);
        UPDATE_EXTEND_STAT(tx_stat_etherstatspkts64octets);
        UPDATE_EXTEND_STAT(tx_stat_etherstatspkts65octetsto127octets);
        UPDATE_EXTEND_STAT(tx_stat_etherstatspkts128octetsto255octets);
        UPDATE_EXTEND_STAT(tx_stat_etherstatspkts256octetsto511octets);
        UPDATE_EXTEND_STAT(tx_stat_etherstatspkts512octetsto1023octets);
        UPDATE_EXTEND_STAT(tx_stat_etherstatspkts1024octetsto1522octets);
        UPDATE_EXTEND_STAT(tx_stat_etherstatspktsover1522octets);
        UPDATE_EXTEND_STAT(tx_stat_dot3statsinternalmactransmiterrors);

        estats->pause_frames_received_hi =
                        pstats->mac_stx[1].rx_stat_xonpauseframesreceived_hi;
        estats->pause_frames_received_lo =
                        pstats->mac_stx[1].rx_stat_xonpauseframesreceived_lo;
        ADD_64(estats->pause_frames_received_hi,
               pstats->mac_stx[1].rx_stat_xoffpauseframesreceived_hi,
               estats->pause_frames_received_lo,
               pstats->mac_stx[1].rx_stat_xoffpauseframesreceived_lo);

        estats->pause_frames_sent_hi =
                        pstats->mac_stx[1].tx_stat_outxonsent_hi;
        estats->pause_frames_sent_lo =
                        pstats->mac_stx[1].tx_stat_outxonsent_lo;
        ADD_64(estats->pause_frames_sent_hi,
               pstats->mac_stx[1].tx_stat_outxoffsent_hi,
               estats->pause_frames_sent_lo,
               pstats->mac_stx[1].tx_stat_outxoffsent_lo);
}

static int bnx2x_hw_stats_update(struct bnx2x *bp)
{
        struct nig_stats *new = bnx2x_sp(bp, nig_stats);
        struct nig_stats *old = &(bp->port.old_nig_stats);
        struct host_port_stats *pstats = bnx2x_sp(bp, port_stats);
        struct bnx2x_eth_stats *estats = &bp->eth_stats;
        struct {
                u32 lo;
                u32 hi;
        } diff;

        switch (bp->link_vars.mac_type) {
        case MAC_TYPE_BMAC:
                bnx2x_bmac_stats_update(bp);
                break;

        case MAC_TYPE_EMAC:
                bnx2x_emac_stats_update(bp);
                break;

        case MAC_TYPE_UMAC:
        case MAC_TYPE_XMAC:
                bnx2x_mstat_stats_update(bp);
                break;

        case MAC_TYPE_NONE: /* unreached */
                DP(BNX2X_MSG_STATS,
                   "stats updated by DMAE but no MAC active\n");
                return -1;

        default: /* unreached */
                BNX2X_ERR("Unknown MAC type\n");
        }

        ADD_EXTEND_64(pstats->brb_drop_hi, pstats->brb_drop_lo,
                      new->brb_discard - old->brb_discard);
        ADD_EXTEND_64(estats->brb_truncate_hi, estats->brb_truncate_lo,
                      new->brb_truncate - old->brb_truncate);

        if (!CHIP_IS_E3(bp)) {
                UPDATE_STAT64_NIG(egress_mac_pkt0,
                                        etherstatspkts1024octetsto1522octets);
                UPDATE_STAT64_NIG(egress_mac_pkt1,
                                        etherstatspktsover1522octets);
        }

        memcpy(old, new, sizeof(struct nig_stats));

        BUILD_BUG_ON(sizeof(estats->shared) != sizeof(pstats->mac_stx[1]));
        memcpy(&(estats->shared), &(pstats->mac_stx[1]),
               sizeof(struct mac_stx));
        estats->brb_drop_hi = pstats->brb_drop_hi;
        estats->brb_drop_lo = pstats->brb_drop_lo;

        pstats->host_port_stats_counter++;

        if (CHIP_IS_E3(bp)) {
                u32 lpi_reg = BP_PORT(bp) ? MISC_REG_CPMU_LP_SM_ENT_CNT_P1
                                          : MISC_REG_CPMU_LP_SM_ENT_CNT_P0;
                estats->eee_tx_lpi += REG_RD(bp, lpi_reg);
        }

        if (!BP_NOMCP(bp)) {
                u32 nig_timer_max =
                        SHMEM_RD(bp, port_mb[BP_PORT(bp)].stat_nig_timer);
                if (nig_timer_max != estats->nig_timer_max) {
                        estats->nig_timer_max = nig_timer_max;
                        BNX2X_ERR("NIG timer max (%u)\n",
                                  estats->nig_timer_max);
                }
        }

        return 0;
}

static int bnx2x_storm_stats_validate_counters(struct bnx2x *bp)
{
        struct stats_counter *counters = &bp->fw_stats_data->storm_counters;
        u16 cur_stats_counter;
        /* Make sure we use the value of the counter
         * used for sending the last stats ramrod.
         */
        cur_stats_counter = bp->stats_counter - 1;

        /* are storm stats valid? */
        if (le16_to_cpu(counters->xstats_counter) != cur_stats_counter) {
                DP(BNX2X_MSG_STATS,
                   "stats not updated by xstorm  xstorm counter (0x%x) != stats_counter (0x%x)\n",
                   le16_to_cpu(counters->xstats_counter), bp->stats_counter);
                return -EAGAIN;
        }

        if (le16_to_cpu(counters->ustats_counter) != cur_stats_counter) {
                DP(BNX2X_MSG_STATS,
                   "stats not updated by ustorm  ustorm counter (0x%x) != stats_counter (0x%x)\n",
                   le16_to_cpu(counters->ustats_counter), bp->stats_counter);
                return -EAGAIN;
        }

        if (le16_to_cpu(counters->cstats_counter) != cur_stats_counter) {
                DP(BNX2X_MSG_STATS,
                   "stats not updated by cstorm  cstorm counter (0x%x) != stats_counter (0x%x)\n",
                   le16_to_cpu(counters->cstats_counter), bp->stats_counter);
                return -EAGAIN;
        }

        if (le16_to_cpu(counters->tstats_counter) != cur_stats_counter) {
                DP(BNX2X_MSG_STATS,
                   "stats not updated by tstorm  tstorm counter (0x%x) != stats_counter (0x%x)\n",
                   le16_to_cpu(counters->tstats_counter), bp->stats_counter);
                return -EAGAIN;
        }
        return 0;
}

static int bnx2x_storm_stats_update(struct bnx2x *bp)
{
        struct tstorm_per_port_stats *tport =
                                &bp->fw_stats_data->port.tstorm_port_statistics;
        struct tstorm_per_pf_stats *tfunc =
                                &bp->fw_stats_data->pf.tstorm_pf_statistics;
        struct host_func_stats *fstats = &bp->func_stats;
        struct bnx2x_eth_stats *estats = &bp->eth_stats;
        struct bnx2x_eth_stats_old *estats_old = &bp->eth_stats_old;
        int i;

        /* vfs stat counter is managed by pf */
        if (IS_PF(bp) && bnx2x_storm_stats_validate_counters(bp))
                return -EAGAIN;

        estats->error_bytes_received_hi = 0;
        estats->error_bytes_received_lo = 0;

        for_each_eth_queue(bp, i) {
                struct bnx2x_fastpath *fp = &bp->fp[i];
                struct tstorm_per_queue_stats *tclient =
                        &bp->fw_stats_data->queue_stats[i].
                        tstorm_queue_statistics;
                struct tstorm_per_queue_stats *old_tclient =
                        &bnx2x_fp_stats(bp, fp)->old_tclient;
                struct ustorm_per_queue_stats *uclient =
                        &bp->fw_stats_data->queue_stats[i].
                        ustorm_queue_statistics;
                struct ustorm_per_queue_stats *old_uclient =
                        &bnx2x_fp_stats(bp, fp)->old_uclient;
                struct xstorm_per_queue_stats *xclient =
                        &bp->fw_stats_data->queue_stats[i].
                        xstorm_queue_statistics;
                struct xstorm_per_queue_stats *old_xclient =
                        &bnx2x_fp_stats(bp, fp)->old_xclient;
                struct bnx2x_eth_q_stats *qstats =
                        &bnx2x_fp_stats(bp, fp)->eth_q_stats;
                struct bnx2x_eth_q_stats_old *qstats_old =
                        &bnx2x_fp_stats(bp, fp)->eth_q_stats_old;

                u32 diff;

                DP(BNX2X_MSG_STATS, "queue[%d]: ucast_sent 0x%x, bcast_sent 0x%x mcast_sent 0x%x\n",
                   i, xclient->ucast_pkts_sent,
                   xclient->bcast_pkts_sent, xclient->mcast_pkts_sent);

                DP(BNX2X_MSG_STATS, "---------------\n");

                UPDATE_QSTAT(tclient->rcv_bcast_bytes,
                             total_broadcast_bytes_received);
                UPDATE_QSTAT(tclient->rcv_mcast_bytes,
                             total_multicast_bytes_received);
                UPDATE_QSTAT(tclient->rcv_ucast_bytes,
                             total_unicast_bytes_received);

                /*
                 * sum to total_bytes_received all
                 * unicast/multicast/broadcast
                 */
                qstats->total_bytes_received_hi =
                        qstats->total_broadcast_bytes_received_hi;
                qstats->total_bytes_received_lo =
                        qstats->total_broadcast_bytes_received_lo;

                ADD_64(qstats->total_bytes_received_hi,
                       qstats->total_multicast_bytes_received_hi,
                       qstats->total_bytes_received_lo,
                       qstats->total_multicast_bytes_received_lo);

                ADD_64(qstats->total_bytes_received_hi,
                       qstats->total_unicast_bytes_received_hi,
                       qstats->total_bytes_received_lo,
                       qstats->total_unicast_bytes_received_lo);

                qstats->valid_bytes_received_hi =
                                        qstats->total_bytes_received_hi;
                qstats->valid_bytes_received_lo =
                                        qstats->total_bytes_received_lo;

                UPDATE_EXTEND_TSTAT(rcv_ucast_pkts,
                                        total_unicast_packets_received);
                UPDATE_EXTEND_TSTAT(rcv_mcast_pkts,
                                        total_multicast_packets_received);
                UPDATE_EXTEND_TSTAT(rcv_bcast_pkts,
                                        total_broadcast_packets_received);
                UPDATE_EXTEND_E_TSTAT(pkts_too_big_discard,
                                      etherstatsoverrsizepkts, 32);
                UPDATE_EXTEND_E_TSTAT(no_buff_discard, no_buff_discard, 16);

                SUB_EXTEND_USTAT(ucast_no_buff_pkts,
                                        total_unicast_packets_received);
                SUB_EXTEND_USTAT(mcast_no_buff_pkts,
                                        total_multicast_packets_received);
                SUB_EXTEND_USTAT(bcast_no_buff_pkts,
                                        total_broadcast_packets_received);
                UPDATE_EXTEND_E_USTAT(ucast_no_buff_pkts, no_buff_discard);
                UPDATE_EXTEND_E_USTAT(mcast_no_buff_pkts, no_buff_discard);
                UPDATE_EXTEND_E_USTAT(bcast_no_buff_pkts, no_buff_discard);

                UPDATE_QSTAT(xclient->bcast_bytes_sent,
                             total_broadcast_bytes_transmitted);
                UPDATE_QSTAT(xclient->mcast_bytes_sent,
                             total_multicast_bytes_transmitted);
                UPDATE_QSTAT(xclient->ucast_bytes_sent,
                             total_unicast_bytes_transmitted);

                /*
                 * sum to total_bytes_transmitted all
                 * unicast/multicast/broadcast
                 */
                qstats->total_bytes_transmitted_hi =
                                qstats->total_unicast_bytes_transmitted_hi;
                qstats->total_bytes_transmitted_lo =
                                qstats->total_unicast_bytes_transmitted_lo;

                ADD_64(qstats->total_bytes_transmitted_hi,
                       qstats->total_broadcast_bytes_transmitted_hi,
                       qstats->total_bytes_transmitted_lo,
                       qstats->total_broadcast_bytes_transmitted_lo);

                ADD_64(qstats->total_bytes_transmitted_hi,
                       qstats->total_multicast_bytes_transmitted_hi,
                       qstats->total_bytes_transmitted_lo,
                       qstats->total_multicast_bytes_transmitted_lo);

                UPDATE_EXTEND_XSTAT(ucast_pkts_sent,
                                        total_unicast_packets_transmitted);
                UPDATE_EXTEND_XSTAT(mcast_pkts_sent,
                                        total_multicast_packets_transmitted);
                UPDATE_EXTEND_XSTAT(bcast_pkts_sent,
                                        total_broadcast_packets_transmitted);

                UPDATE_EXTEND_TSTAT(checksum_discard,
                                    total_packets_received_checksum_discarded);
                UPDATE_EXTEND_TSTAT(ttl0_discard,
                                    total_packets_received_ttl0_discarded);

                UPDATE_EXTEND_XSTAT(error_drop_pkts,
                                    total_transmitted_dropped_packets_error);

                /* TPA aggregations completed */
                UPDATE_EXTEND_E_USTAT(coalesced_events, total_tpa_aggregations);
                /* Number of network frames aggregated by TPA */
                UPDATE_EXTEND_E_USTAT(coalesced_pkts,
                                      total_tpa_aggregated_frames);
                /* Total number of bytes in completed TPA aggregations */
                UPDATE_QSTAT(uclient->coalesced_bytes, total_tpa_bytes);

                UPDATE_ESTAT_QSTAT_64(total_tpa_bytes);

                UPDATE_FSTAT_QSTAT(total_bytes_received);
                UPDATE_FSTAT_QSTAT(total_bytes_transmitted);
                UPDATE_FSTAT_QSTAT(total_unicast_packets_received);
                UPDATE_FSTAT_QSTAT(total_multicast_packets_received);
                UPDATE_FSTAT_QSTAT(total_broadcast_packets_received);
                UPDATE_FSTAT_QSTAT(total_unicast_packets_transmitted);
                UPDATE_FSTAT_QSTAT(total_multicast_packets_transmitted);
                UPDATE_FSTAT_QSTAT(total_broadcast_packets_transmitted);
                UPDATE_FSTAT_QSTAT(valid_bytes_received);
        }

        ADD_64(estats->total_bytes_received_hi,
               estats->rx_stat_ifhcinbadoctets_hi,
               estats->total_bytes_received_lo,
               estats->rx_stat_ifhcinbadoctets_lo);

        ADD_64_LE(estats->total_bytes_received_hi,
                  tfunc->rcv_error_bytes.hi,
                  estats->total_bytes_received_lo,
                  tfunc->rcv_error_bytes.lo);

        ADD_64_LE(estats->error_bytes_received_hi,
                  tfunc->rcv_error_bytes.hi,
                  estats->error_bytes_received_lo,
                  tfunc->rcv_error_bytes.lo);

        UPDATE_ESTAT(etherstatsoverrsizepkts, rx_stat_dot3statsframestoolong);

        ADD_64(estats->error_bytes_received_hi,
               estats->rx_stat_ifhcinbadoctets_hi,
               estats->error_bytes_received_lo,
               estats->rx_stat_ifhcinbadoctets_lo);

        if (bp->port.pmf) {
                struct bnx2x_fw_port_stats_old *fwstats = &bp->fw_stats_old;
                UPDATE_FW_STAT(mac_filter_discard);
                UPDATE_FW_STAT(mf_tag_discard);
                UPDATE_FW_STAT(brb_truncate_discard);
                UPDATE_FW_STAT(mac_discard);
        }

        fstats->host_func_stats_start = ++fstats->host_func_stats_end;

        bp->stats_pending = 0;

        return 0;
}

static void bnx2x_net_stats_update(struct bnx2x *bp)
{
        struct bnx2x_eth_stats *estats = &bp->eth_stats;
        struct net_device_stats *nstats = &bp->dev->stats;
        unsigned long tmp;
        int i;

        nstats->rx_packets =
                bnx2x_hilo(&estats->total_unicast_packets_received_hi) +
                bnx2x_hilo(&estats->total_multicast_packets_received_hi) +
                bnx2x_hilo(&estats->total_broadcast_packets_received_hi);

        nstats->tx_packets =
                bnx2x_hilo(&estats->total_unicast_packets_transmitted_hi) +
                bnx2x_hilo(&estats->total_multicast_packets_transmitted_hi) +
                bnx2x_hilo(&estats->total_broadcast_packets_transmitted_hi);

        nstats->rx_bytes = bnx2x_hilo(&estats->total_bytes_received_hi);

        nstats->tx_bytes = bnx2x_hilo(&estats->total_bytes_transmitted_hi);

        tmp = estats->mac_discard;
        for_each_rx_queue(bp, i) {
                struct tstorm_per_queue_stats *old_tclient =
                        &bp->fp_stats[i].old_tclient;
                tmp += le32_to_cpu(old_tclient->checksum_discard);
        }
        nstats->rx_dropped = tmp + bp->net_stats_old.rx_dropped;

        nstats->tx_dropped = 0;

        nstats->multicast =
                bnx2x_hilo(&estats->total_multicast_packets_received_hi);

        nstats->collisions =
                bnx2x_hilo(&estats->tx_stat_etherstatscollisions_hi);

        nstats->rx_length_errors =
                bnx2x_hilo(&estats->rx_stat_etherstatsundersizepkts_hi) +
                bnx2x_hilo(&estats->etherstatsoverrsizepkts_hi);
        nstats->rx_over_errors = bnx2x_hilo(&estats->brb_drop_hi) +
                                 bnx2x_hilo(&estats->brb_truncate_hi);
        nstats->rx_crc_errors =
                bnx2x_hilo(&estats->rx_stat_dot3statsfcserrors_hi);
        nstats->rx_frame_errors =
                bnx2x_hilo(&estats->rx_stat_dot3statsalignmenterrors_hi);
        nstats->rx_fifo_errors = bnx2x_hilo(&estats->no_buff_discard_hi);
        nstats->rx_missed_errors = 0;

        nstats->rx_errors = nstats->rx_length_errors +
                            nstats->rx_over_errors +
                            nstats->rx_crc_errors +
                            nstats->rx_frame_errors +
                            nstats->rx_fifo_errors +
                            nstats->rx_missed_errors;

        nstats->tx_aborted_errors =
                bnx2x_hilo(&estats->tx_stat_dot3statslatecollisions_hi) +
                bnx2x_hilo(&estats->tx_stat_dot3statsexcessivecollisions_hi);
        nstats->tx_carrier_errors =
                bnx2x_hilo(&estats->rx_stat_dot3statscarriersenseerrors_hi);
        nstats->tx_fifo_errors = 0;
        nstats->tx_heartbeat_errors = 0;
        nstats->tx_window_errors = 0;

        nstats->tx_errors = nstats->tx_aborted_errors +
                            nstats->tx_carrier_errors +
            bnx2x_hilo(&estats->tx_stat_dot3statsinternalmactransmiterrors_hi);
}

static void bnx2x_drv_stats_update(struct bnx2x *bp)
{
        struct bnx2x_eth_stats *estats = &bp->eth_stats;
        int i;

        for_each_queue(bp, i) {
                struct bnx2x_eth_q_stats *qstats = &bp->fp_stats[i].eth_q_stats;
                struct bnx2x_eth_q_stats_old *qstats_old =
                        &bp->fp_stats[i].eth_q_stats_old;

                UPDATE_ESTAT_QSTAT(driver_xoff);
                UPDATE_ESTAT_QSTAT(rx_err_discard_pkt);
                UPDATE_ESTAT_QSTAT(rx_skb_alloc_failed);
                UPDATE_ESTAT_QSTAT(hw_csum_err);
                UPDATE_ESTAT_QSTAT(driver_filtered_tx_pkt);
        }
}

static bool bnx2x_edebug_stats_stopped(struct bnx2x *bp)
{
        u32 val;

        if (SHMEM2_HAS(bp, edebug_driver_if[1])) {
                val = SHMEM2_RD(bp, edebug_driver_if[1]);

                if (val == EDEBUG_DRIVER_IF_OP_CODE_DISABLE_STAT)
                        return true;
        }

        return false;
}

static void bnx2x_stats_update(struct bnx2x *bp)
{
        u32 *stats_comp = bnx2x_sp(bp, stats_comp);

        if (bnx2x_edebug_stats_stopped(bp))
                return;

        if (IS_PF(bp)) {
                if (*stats_comp != DMAE_COMP_VAL)
                        return;

                if (bp->port.pmf)
                        bnx2x_hw_stats_update(bp);

                if (bnx2x_storm_stats_update(bp)) {
                        if (bp->stats_pending++ == 3) {
                                BNX2X_ERR("storm stats were not updated for 3 times\n");
                                bnx2x_panic();
                        }
                        return;
                }
        } else {
                /* vf doesn't collect HW statistics, and doesn't get completions
                 * perform only update
                 */
                bnx2x_storm_stats_update(bp);
        }

        bnx2x_net_stats_update(bp);
        bnx2x_drv_stats_update(bp);

        /* vf is done */
        if (IS_VF(bp))
                return;

        if (netif_msg_timer(bp)) {
                struct bnx2x_eth_stats *estats = &bp->eth_stats;

                netdev_dbg(bp->dev, "brb drops %u  brb truncate %u\n",
                       estats->brb_drop_lo, estats->brb_truncate_lo);
        }

        bnx2x_hw_stats_post(bp);
        bnx2x_storm_stats_post(bp);
}

static void bnx2x_port_stats_stop(struct bnx2x *bp)
{
        struct dmae_command *dmae;
        u32 opcode;
        int loader_idx = PMF_DMAE_C(bp);
        u32 *stats_comp = bnx2x_sp(bp, stats_comp);

        bp->executer_idx = 0;

        opcode = bnx2x_dmae_opcode(bp, DMAE_SRC_PCI, DMAE_DST_GRC, false, 0);

        if (bp->port.port_stx) {

                dmae = bnx2x_sp(bp, dmae[bp->executer_idx++]);
                if (bp->func_stx)
                        dmae->opcode = bnx2x_dmae_opcode_add_comp(
                                                opcode, DMAE_COMP_GRC);
                else
                        dmae->opcode = bnx2x_dmae_opcode_add_comp(
                                                opcode, DMAE_COMP_PCI);

                dmae->src_addr_lo = U64_LO(bnx2x_sp_mapping(bp, port_stats));
                dmae->src_addr_hi = U64_HI(bnx2x_sp_mapping(bp, port_stats));
                dmae->dst_addr_lo = bp->port.port_stx >> 2;
                dmae->dst_addr_hi = 0;
                dmae->len = bnx2x_get_port_stats_dma_len(bp);
                if (bp->func_stx) {
                        dmae->comp_addr_lo = dmae_reg_go_c[loader_idx] >> 2;
                        dmae->comp_addr_hi = 0;
                        dmae->comp_val = 1;
                } else {
                        dmae->comp_addr_lo =
                                U64_LO(bnx2x_sp_mapping(bp, stats_comp));
                        dmae->comp_addr_hi =
                                U64_HI(bnx2x_sp_mapping(bp, stats_comp));
                        dmae->comp_val = DMAE_COMP_VAL;

                        *stats_comp = 0;
                }
        }

        if (bp->func_stx) {

                dmae = bnx2x_sp(bp, dmae[bp->executer_idx++]);
                dmae->opcode =
                        bnx2x_dmae_opcode_add_comp(opcode, DMAE_COMP_PCI);
                dmae->src_addr_lo = U64_LO(bnx2x_sp_mapping(bp, func_stats));
                dmae->src_addr_hi = U64_HI(bnx2x_sp_mapping(bp, func_stats));
                dmae->dst_addr_lo = bp->func_stx >> 2;
                dmae->dst_addr_hi = 0;
                dmae->len = sizeof(struct host_func_stats) >> 2;
                dmae->comp_addr_lo = U64_LO(bnx2x_sp_mapping(bp, stats_comp));
                dmae->comp_addr_hi = U64_HI(bnx2x_sp_mapping(bp, stats_comp));
                dmae->comp_val = DMAE_COMP_VAL;

                *stats_comp = 0;
        }
}

static void bnx2x_stats_stop(struct bnx2x *bp)
{
        bool update = false;

        bnx2x_stats_comp(bp);

        if (bp->port.pmf)
                update = (bnx2x_hw_stats_update(bp) == 0);

        update |= (bnx2x_storm_stats_update(bp) == 0);

        if (update) {
                bnx2x_net_stats_update(bp);

                if (bp->port.pmf)
                        bnx2x_port_stats_stop(bp);

                bnx2x_hw_stats_post(bp);
                bnx2x_stats_comp(bp);
        }
}

static void bnx2x_stats_do_nothing(struct bnx2x *bp)
{
}

static const struct {
        void (*action)(struct bnx2x *bp);
        enum bnx2x_stats_state next_state;
} bnx2x_stats_stm[STATS_STATE_MAX][STATS_EVENT_MAX] = {
/* state        event   */
{
/* DISABLED     PMF     */ {bnx2x_stats_pmf_update, STATS_STATE_DISABLED},
/*              LINK_UP */ {bnx2x_stats_start,      STATS_STATE_ENABLED},
/*              UPDATE  */ {bnx2x_stats_do_nothing, STATS_STATE_DISABLED},
/*              STOP    */ {bnx2x_stats_do_nothing, STATS_STATE_DISABLED}
},
{
/* ENABLED      PMF     */ {bnx2x_stats_pmf_start,  STATS_STATE_ENABLED},
/*              LINK_UP */ {bnx2x_stats_restart,    STATS_STATE_ENABLED},
/*              UPDATE  */ {bnx2x_stats_update,     STATS_STATE_ENABLED},
/*              STOP    */ {bnx2x_stats_stop,       STATS_STATE_DISABLED}
}
};

void bnx2x_stats_handle(struct bnx2x *bp, enum bnx2x_stats_event event)
{
        enum bnx2x_stats_state state = bp->stats_state;

        if (unlikely(bp->panic))
                return;

        /* Statistics update run from timer context, and we don't want to stop
         * that context in case someone is in the middle of a transition.
         * For other events, wait a bit until lock is taken.
         */
        if (down_trylock(&bp->stats_lock)) {
                if (event == STATS_EVENT_UPDATE)
                        return;

                DP(BNX2X_MSG_STATS,
                   "Unlikely stats' lock contention [event %d]\n", event);
                if (unlikely(down_timeout(&bp->stats_lock, HZ / 10))) {
                        BNX2X_ERR("Failed to take stats lock [event %d]\n",
                                  event);
                        return;
                }
        }

        bnx2x_stats_stm[state][event].action(bp);
        bp->stats_state = bnx2x_stats_stm[state][event].next_state;

        up(&bp->stats_lock);

        if ((event != STATS_EVENT_UPDATE) || netif_msg_timer(bp))
                DP(BNX2X_MSG_STATS, "state %d -> event %d -> state %d\n",
                   state, event, bp->stats_state);
}

static void bnx2x_port_stats_base_init(struct bnx2x *bp)
{
        struct dmae_command *dmae;
        u32 *stats_comp = bnx2x_sp(bp, stats_comp);

        /* sanity */
        if (!bp->port.pmf || !bp->port.port_stx) {
                BNX2X_ERR("BUG!\n");
                return;
        }

        bp->executer_idx = 0;

        dmae = bnx2x_sp(bp, dmae[bp->executer_idx++]);
        dmae->opcode = bnx2x_dmae_opcode(bp, DMAE_SRC_PCI, DMAE_DST_GRC,
                                         true, DMAE_COMP_PCI);
        dmae->src_addr_lo = U64_LO(bnx2x_sp_mapping(bp, port_stats));
        dmae->src_addr_hi = U64_HI(bnx2x_sp_mapping(bp, port_stats));
        dmae->dst_addr_lo = bp->port.port_stx >> 2;
        dmae->dst_addr_hi = 0;
        dmae->len = bnx2x_get_port_stats_dma_len(bp);
        dmae->comp_addr_lo = U64_LO(bnx2x_sp_mapping(bp, stats_comp));
        dmae->comp_addr_hi = U64_HI(bnx2x_sp_mapping(bp, stats_comp));
        dmae->comp_val = DMAE_COMP_VAL;

        *stats_comp = 0;
        bnx2x_hw_stats_post(bp);
        bnx2x_stats_comp(bp);
}

/* This function will prepare the statistics ramrod data the way
 * we will only have to increment the statistics counter and
 * send the ramrod each time we have to.
 */
static void bnx2x_prep_fw_stats_req(struct bnx2x *bp)
{
        int i;
        int first_queue_query_index;
        struct stats_query_header *stats_hdr = &bp->fw_stats_req->hdr;

        dma_addr_t cur_data_offset;
        struct stats_query_entry *cur_query_entry;

        stats_hdr->cmd_num = bp->fw_stats_num;
        stats_hdr->drv_stats_counter = 0;

        /* storm_counters struct contains the counters of completed
         * statistics requests per storm which are incremented by FW
         * each time it completes hadning a statistics ramrod. We will
         * check these counters in the timer handler and discard a
         * (statistics) ramrod completion.
         */
        cur_data_offset = bp->fw_stats_data_mapping +
                offsetof(struct bnx2x_fw_stats_data, storm_counters);

        stats_hdr->stats_counters_addrs.hi =
                cpu_to_le32(U64_HI(cur_data_offset));
        stats_hdr->stats_counters_addrs.lo =
                cpu_to_le32(U64_LO(cur_data_offset));

        /* prepare to the first stats ramrod (will be completed with
         * the counters equal to zero) - init counters to somethig different.
         */
        memset(&bp->fw_stats_data->storm_counters, 0xff,
               sizeof(struct stats_counter));

        /**** Port FW statistics data ****/
        cur_data_offset = bp->fw_stats_data_mapping +
                offsetof(struct bnx2x_fw_stats_data, port);

        cur_query_entry = &bp->fw_stats_req->query[BNX2X_PORT_QUERY_IDX];

        cur_query_entry->kind = STATS_TYPE_PORT;
        /* For port query index is a DONT CARE */
        cur_query_entry->index = BP_PORT(bp);
        /* For port query funcID is a DONT CARE */
        cur_query_entry->funcID = cpu_to_le16(BP_FUNC(bp));
        cur_query_entry->address.hi = cpu_to_le32(U64_HI(cur_data_offset));
        cur_query_entry->address.lo = cpu_to_le32(U64_LO(cur_data_offset));

        /**** PF FW statistics data ****/
        cur_data_offset = bp->fw_stats_data_mapping +
                offsetof(struct bnx2x_fw_stats_data, pf);

        cur_query_entry = &bp->fw_stats_req->query[BNX2X_PF_QUERY_IDX];

        cur_query_entry->kind = STATS_TYPE_PF;
        /* For PF query index is a DONT CARE */
        cur_query_entry->index = BP_PORT(bp);
        cur_query_entry->funcID = cpu_to_le16(BP_FUNC(bp));
        cur_query_entry->address.hi = cpu_to_le32(U64_HI(cur_data_offset));
        cur_query_entry->address.lo = cpu_to_le32(U64_LO(cur_data_offset));

        /**** FCoE FW statistics data ****/
        if (!NO_FCOE(bp)) {
                cur_data_offset = bp->fw_stats_data_mapping +
                        offsetof(struct bnx2x_fw_stats_data, fcoe);

                cur_query_entry =
                        &bp->fw_stats_req->query[BNX2X_FCOE_QUERY_IDX];

                cur_query_entry->kind = STATS_TYPE_FCOE;
                /* For FCoE query index is a DONT CARE */
                cur_query_entry->index = BP_PORT(bp);
                cur_query_entry->funcID = cpu_to_le16(BP_FUNC(bp));
                cur_query_entry->address.hi =
                        cpu_to_le32(U64_HI(cur_data_offset));
                cur_query_entry->address.lo =
                        cpu_to_le32(U64_LO(cur_data_offset));
        }

        /**** Clients' queries ****/
        cur_data_offset = bp->fw_stats_data_mapping +
                offsetof(struct bnx2x_fw_stats_data, queue_stats);

        /* first queue query index depends whether FCoE offloaded request will
         * be included in the ramrod
         */
        if (!NO_FCOE(bp))
                first_queue_query_index = BNX2X_FIRST_QUEUE_QUERY_IDX;
        else
                first_queue_query_index = BNX2X_FIRST_QUEUE_QUERY_IDX - 1;

        for_each_eth_queue(bp, i) {
                cur_query_entry =
                        &bp->fw_stats_req->
                                        query[first_queue_query_index + i];

                cur_query_entry->kind = STATS_TYPE_QUEUE;
                cur_query_entry->index = bnx2x_stats_id(&bp->fp[i]);
                cur_query_entry->funcID = cpu_to_le16(BP_FUNC(bp));
                cur_query_entry->address.hi =
                        cpu_to_le32(U64_HI(cur_data_offset));
                cur_query_entry->address.lo =
                        cpu_to_le32(U64_LO(cur_data_offset));

                cur_data_offset += sizeof(struct per_queue_stats);
        }

        /* add FCoE queue query if needed */
        if (!NO_FCOE(bp)) {
                cur_query_entry =
                        &bp->fw_stats_req->
                                        query[first_queue_query_index + i];

                cur_query_entry->kind = STATS_TYPE_QUEUE;
                cur_query_entry->index = bnx2x_stats_id(&bp->fp[FCOE_IDX(bp)]);
                cur_query_entry->funcID = cpu_to_le16(BP_FUNC(bp));
                cur_query_entry->address.hi =
                        cpu_to_le32(U64_HI(cur_data_offset));
                cur_query_entry->address.lo =
                        cpu_to_le32(U64_LO(cur_data_offset));
        }
}

void bnx2x_memset_stats(struct bnx2x *bp)
{
        int i;

        /* function stats */
        for_each_queue(bp, i) {
                struct bnx2x_fp_stats *fp_stats = &bp->fp_stats[i];

                memset(&fp_stats->old_tclient, 0,
                       sizeof(fp_stats->old_tclient));
                memset(&fp_stats->old_uclient, 0,
                       sizeof(fp_stats->old_uclient));
                memset(&fp_stats->old_xclient, 0,
                       sizeof(fp_stats->old_xclient));
                if (bp->stats_init) {
                        memset(&fp_stats->eth_q_stats, 0,
                               sizeof(fp_stats->eth_q_stats));
                        memset(&fp_stats->eth_q_stats_old, 0,
                               sizeof(fp_stats->eth_q_stats_old));
                }
        }

        memset(&bp->dev->stats, 0, sizeof(bp->dev->stats));

        if (bp->stats_init) {
                memset(&bp->net_stats_old, 0, sizeof(bp->net_stats_old));
                memset(&bp->fw_stats_old, 0, sizeof(bp->fw_stats_old));
                memset(&bp->eth_stats_old, 0, sizeof(bp->eth_stats_old));
                memset(&bp->eth_stats, 0, sizeof(bp->eth_stats));
                memset(&bp->func_stats, 0, sizeof(bp->func_stats));
        }

        bp->stats_state = STATS_STATE_DISABLED;

        if (bp->port.pmf && bp->port.port_stx)
                bnx2x_port_stats_base_init(bp);

        /* mark the end of statistics initialization */
        bp->stats_init = false;
}

void bnx2x_stats_init(struct bnx2x *bp)
{
        int /*abs*/port = BP_PORT(bp);
        int mb_idx = BP_FW_MB_IDX(bp);

        if (IS_VF(bp)) {
                bnx2x_memset_stats(bp);
                return;
        }

        bp->stats_pending = 0;
        bp->executer_idx = 0;
        bp->stats_counter = 0;

        /* port and func stats for management */
        if (!BP_NOMCP(bp)) {
                bp->port.port_stx = SHMEM_RD(bp, port_mb[port].port_stx);
                bp->func_stx = SHMEM_RD(bp, func_mb[mb_idx].fw_mb_param);

        } else {
                bp->port.port_stx = 0;
                bp->func_stx = 0;
        }
        DP(BNX2X_MSG_STATS, "port_stx 0x%x  func_stx 0x%x\n",
           bp->port.port_stx, bp->func_stx);

        /* pmf should retrieve port statistics from SP on a non-init*/
        if (!bp->stats_init && bp->port.pmf && bp->port.port_stx)
                bnx2x_stats_handle(bp, STATS_EVENT_PMF);

        port = BP_PORT(bp);
        /* port stats */
        memset(&(bp->port.old_nig_stats), 0, sizeof(struct nig_stats));
        bp->port.old_nig_stats.brb_discard =
                        REG_RD(bp, NIG_REG_STAT0_BRB_DISCARD + port*0x38);
        bp->port.old_nig_stats.brb_truncate =
                        REG_RD(bp, NIG_REG_STAT0_BRB_TRUNCATE + port*0x38);
        if (!CHIP_IS_E3(bp)) {
                REG_RD_DMAE(bp, NIG_REG_STAT0_EGRESS_MAC_PKT0 + port*0x50,
                            &(bp->port.old_nig_stats.egress_mac_pkt0), 2);
                REG_RD_DMAE(bp, NIG_REG_STAT0_EGRESS_MAC_PKT1 + port*0x50,
                            &(bp->port.old_nig_stats.egress_mac_pkt1), 2);
        }

        /* Prepare statistics ramrod data */
        bnx2x_prep_fw_stats_req(bp);

        /* Clean SP from previous statistics */
        if (bp->stats_init) {
                if (bp->func_stx) {
                        memset(bnx2x_sp(bp, func_stats), 0,
                               sizeof(struct host_func_stats));
                        bnx2x_func_stats_init(bp);
                        bnx2x_hw_stats_post(bp);
                        bnx2x_stats_comp(bp);
                }
        }

        bnx2x_memset_stats(bp);
}

void bnx2x_save_statistics(struct bnx2x *bp)
{
        int i;
        struct net_device_stats *nstats = &bp->dev->stats;

        /* save queue statistics */
        for_each_eth_queue(bp, i) {
                struct bnx2x_fastpath *fp = &bp->fp[i];
                struct bnx2x_eth_q_stats *qstats =
                        &bnx2x_fp_stats(bp, fp)->eth_q_stats;
                struct bnx2x_eth_q_stats_old *qstats_old =
                        &bnx2x_fp_stats(bp, fp)->eth_q_stats_old;

                UPDATE_QSTAT_OLD(total_unicast_bytes_received_hi);
                UPDATE_QSTAT_OLD(total_unicast_bytes_received_lo);
                UPDATE_QSTAT_OLD(total_broadcast_bytes_received_hi);
                UPDATE_QSTAT_OLD(total_broadcast_bytes_received_lo);
                UPDATE_QSTAT_OLD(total_multicast_bytes_received_hi);
                UPDATE_QSTAT_OLD(total_multicast_bytes_received_lo);
                UPDATE_QSTAT_OLD(total_unicast_bytes_transmitted_hi);
                UPDATE_QSTAT_OLD(total_unicast_bytes_transmitted_lo);
                UPDATE_QSTAT_OLD(total_broadcast_bytes_transmitted_hi);
                UPDATE_QSTAT_OLD(total_broadcast_bytes_transmitted_lo);
                UPDATE_QSTAT_OLD(total_multicast_bytes_transmitted_hi);
                UPDATE_QSTAT_OLD(total_multicast_bytes_transmitted_lo);
                UPDATE_QSTAT_OLD(total_tpa_bytes_hi);
                UPDATE_QSTAT_OLD(total_tpa_bytes_lo);
        }

        /* save net_device_stats statistics */
        bp->net_stats_old.rx_dropped = nstats->rx_dropped;

        /* store port firmware statistics */
        if (bp->port.pmf && IS_MF(bp)) {
                struct bnx2x_eth_stats *estats = &bp->eth_stats;
                struct bnx2x_fw_port_stats_old *fwstats = &bp->fw_stats_old;
                UPDATE_FW_STAT_OLD(mac_filter_discard);
                UPDATE_FW_STAT_OLD(mf_tag_discard);
                UPDATE_FW_STAT_OLD(brb_truncate_discard);
                UPDATE_FW_STAT_OLD(mac_discard);
        }
}

void bnx2x_afex_collect_stats(struct bnx2x *bp, void *void_afex_stats,
                              u32 stats_type)
{
        int i;
        struct afex_stats *afex_stats = (struct afex_stats *)void_afex_stats;
        struct bnx2x_eth_stats *estats = &bp->eth_stats;
        struct per_queue_stats *fcoe_q_stats =
                &bp->fw_stats_data->queue_stats[FCOE_IDX(bp)];

        struct tstorm_per_queue_stats *fcoe_q_tstorm_stats =
                &fcoe_q_stats->tstorm_queue_statistics;

        struct ustorm_per_queue_stats *fcoe_q_ustorm_stats =
                &fcoe_q_stats->ustorm_queue_statistics;

        struct xstorm_per_queue_stats *fcoe_q_xstorm_stats =
                &fcoe_q_stats->xstorm_queue_statistics;

        struct fcoe_statistics_params *fw_fcoe_stat =
                &bp->fw_stats_data->fcoe;

        memset(afex_stats, 0, sizeof(struct afex_stats));

        for_each_eth_queue(bp, i) {
                struct bnx2x_eth_q_stats *qstats = &bp->fp_stats[i].eth_q_stats;

                ADD_64(afex_stats->rx_unicast_bytes_hi,
                       qstats->total_unicast_bytes_received_hi,
                       afex_stats->rx_unicast_bytes_lo,
                       qstats->total_unicast_bytes_received_lo);

                ADD_64(afex_stats->rx_broadcast_bytes_hi,
                       qstats->total_broadcast_bytes_received_hi,
                       afex_stats->rx_broadcast_bytes_lo,
                       qstats->total_broadcast_bytes_received_lo);

                ADD_64(afex_stats->rx_multicast_bytes_hi,
                       qstats->total_multicast_bytes_received_hi,
                       afex_stats->rx_multicast_bytes_lo,
                       qstats->total_multicast_bytes_received_lo);

                ADD_64(afex_stats->rx_unicast_frames_hi,
                       qstats->total_unicast_packets_received_hi,
                       afex_stats->rx_unicast_frames_lo,
                       qstats->total_unicast_packets_received_lo);

                ADD_64(afex_stats->rx_broadcast_frames_hi,
                       qstats->total_broadcast_packets_received_hi,
                       afex_stats->rx_broadcast_frames_lo,
                       qstats->total_broadcast_packets_received_lo);

                ADD_64(afex_stats->rx_multicast_frames_hi,
                       qstats->total_multicast_packets_received_hi,
                       afex_stats->rx_multicast_frames_lo,
                       qstats->total_multicast_packets_received_lo);

                /* sum to rx_frames_discarded all discraded
                 * packets due to size, ttl0 and checksum
                 */
                ADD_64(afex_stats->rx_frames_discarded_hi,
                       qstats->total_packets_received_checksum_discarded_hi,
                       afex_stats->rx_frames_discarded_lo,
                       qstats->total_packets_received_checksum_discarded_lo);

                ADD_64(afex_stats->rx_frames_discarded_hi,
                       qstats->total_packets_received_ttl0_discarded_hi,
                       afex_stats->rx_frames_discarded_lo,
                       qstats->total_packets_received_ttl0_discarded_lo);

                ADD_64(afex_stats->rx_frames_discarded_hi,
                       qstats->etherstatsoverrsizepkts_hi,
                       afex_stats->rx_frames_discarded_lo,
                       qstats->etherstatsoverrsizepkts_lo);

                ADD_64(afex_stats->rx_frames_dropped_hi,
                       qstats->no_buff_discard_hi,
                       afex_stats->rx_frames_dropped_lo,
                       qstats->no_buff_discard_lo);

                ADD_64(afex_stats->tx_unicast_bytes_hi,
                       qstats->total_unicast_bytes_transmitted_hi,
                       afex_stats->tx_unicast_bytes_lo,
                       qstats->total_unicast_bytes_transmitted_lo);

                ADD_64(afex_stats->tx_broadcast_bytes_hi,
                       qstats->total_broadcast_bytes_transmitted_hi,
                       afex_stats->tx_broadcast_bytes_lo,
                       qstats->total_broadcast_bytes_transmitted_lo);

                ADD_64(afex_stats->tx_multicast_bytes_hi,
                       qstats->total_multicast_bytes_transmitted_hi,
                       afex_stats->tx_multicast_bytes_lo,
                       qstats->total_multicast_bytes_transmitted_lo);

                ADD_64(afex_stats->tx_unicast_frames_hi,
                       qstats->total_unicast_packets_transmitted_hi,
                       afex_stats->tx_unicast_frames_lo,
                       qstats->total_unicast_packets_transmitted_lo);

                ADD_64(afex_stats->tx_broadcast_frames_hi,
                       qstats->total_broadcast_packets_transmitted_hi,
                       afex_stats->tx_broadcast_frames_lo,
                       qstats->total_broadcast_packets_transmitted_lo);

                ADD_64(afex_stats->tx_multicast_frames_hi,
                       qstats->total_multicast_packets_transmitted_hi,
                       afex_stats->tx_multicast_frames_lo,
                       qstats->total_multicast_packets_transmitted_lo);

                ADD_64(afex_stats->tx_frames_dropped_hi,
                       qstats->total_transmitted_dropped_packets_error_hi,
                       afex_stats->tx_frames_dropped_lo,
                       qstats->total_transmitted_dropped_packets_error_lo);
        }

        /* now add FCoE statistics which are collected separately
         * (both offloaded and non offloaded)
         */
        if (!NO_FCOE(bp)) {
                ADD_64_LE(afex_stats->rx_unicast_bytes_hi,
                          LE32_0,
                          afex_stats->rx_unicast_bytes_lo,
                          fw_fcoe_stat->rx_stat0.fcoe_rx_byte_cnt);

                ADD_64_LE(afex_stats->rx_unicast_bytes_hi,
                          fcoe_q_tstorm_stats->rcv_ucast_bytes.hi,
                          afex_stats->rx_unicast_bytes_lo,
                          fcoe_q_tstorm_stats->rcv_ucast_bytes.lo);

                ADD_64_LE(afex_stats->rx_broadcast_bytes_hi,
                          fcoe_q_tstorm_stats->rcv_bcast_bytes.hi,
                          afex_stats->rx_broadcast_bytes_lo,
                          fcoe_q_tstorm_stats->rcv_bcast_bytes.lo);

                ADD_64_LE(afex_stats->rx_multicast_bytes_hi,
                          fcoe_q_tstorm_stats->rcv_mcast_bytes.hi,
                          afex_stats->rx_multicast_bytes_lo,
                          fcoe_q_tstorm_stats->rcv_mcast_bytes.lo);

                ADD_64_LE(afex_stats->rx_unicast_frames_hi,
                          LE32_0,
                          afex_stats->rx_unicast_frames_lo,
                          fw_fcoe_stat->rx_stat0.fcoe_rx_pkt_cnt);

                ADD_64_LE(afex_stats->rx_unicast_frames_hi,
                          LE32_0,
                          afex_stats->rx_unicast_frames_lo,
                          fcoe_q_tstorm_stats->rcv_ucast_pkts);

                ADD_64_LE(afex_stats->rx_broadcast_frames_hi,
                          LE32_0,
                          afex_stats->rx_broadcast_frames_lo,
                          fcoe_q_tstorm_stats->rcv_bcast_pkts);

                ADD_64_LE(afex_stats->rx_multicast_frames_hi,
                          LE32_0,
                          afex_stats->rx_multicast_frames_lo,
                          fcoe_q_tstorm_stats->rcv_ucast_pkts);

                ADD_64_LE(afex_stats->rx_frames_discarded_hi,
                          LE32_0,
                          afex_stats->rx_frames_discarded_lo,
                          fcoe_q_tstorm_stats->checksum_discard);

                ADD_64_LE(afex_stats->rx_frames_discarded_hi,
                          LE32_0,
                          afex_stats->rx_frames_discarded_lo,
                          fcoe_q_tstorm_stats->pkts_too_big_discard);

                ADD_64_LE(afex_stats->rx_frames_discarded_hi,
                          LE32_0,
                          afex_stats->rx_frames_discarded_lo,
                          fcoe_q_tstorm_stats->ttl0_discard);

                ADD_64_LE16(afex_stats->rx_frames_dropped_hi,
                            LE16_0,
                            afex_stats->rx_frames_dropped_lo,
                            fcoe_q_tstorm_stats->no_buff_discard);

                ADD_64_LE(afex_stats->rx_frames_dropped_hi,
                          LE32_0,
                          afex_stats->rx_frames_dropped_lo,
                          fcoe_q_ustorm_stats->ucast_no_buff_pkts);

                ADD_64_LE(afex_stats->rx_frames_dropped_hi,
                          LE32_0,
                          afex_stats->rx_frames_dropped_lo,
                          fcoe_q_ustorm_stats->mcast_no_buff_pkts);

                ADD_64_LE(afex_stats->rx_frames_dropped_hi,
                          LE32_0,
                          afex_stats->rx_frames_dropped_lo,
                          fcoe_q_ustorm_stats->bcast_no_buff_pkts);

                ADD_64_LE(afex_stats->rx_frames_dropped_hi,
                          LE32_0,
                          afex_stats->rx_frames_dropped_lo,
                          fw_fcoe_stat->rx_stat1.fcoe_rx_drop_pkt_cnt);

                ADD_64_LE(afex_stats->rx_frames_dropped_hi,
                          LE32_0,
                          afex_stats->rx_frames_dropped_lo,
                          fw_fcoe_stat->rx_stat2.fcoe_rx_drop_pkt_cnt);

                ADD_64_LE(afex_stats->tx_unicast_bytes_hi,
                          LE32_0,
                          afex_stats->tx_unicast_bytes_lo,
                          fw_fcoe_stat->tx_stat.fcoe_tx_byte_cnt);

                ADD_64_LE(afex_stats->tx_unicast_bytes_hi,
                          fcoe_q_xstorm_stats->ucast_bytes_sent.hi,
                          afex_stats->tx_unicast_bytes_lo,
                          fcoe_q_xstorm_stats->ucast_bytes_sent.lo);

                ADD_64_LE(afex_stats->tx_broadcast_bytes_hi,
                          fcoe_q_xstorm_stats->bcast_bytes_sent.hi,
                          afex_stats->tx_broadcast_bytes_lo,
                          fcoe_q_xstorm_stats->bcast_bytes_sent.lo);

                ADD_64_LE(afex_stats->tx_multicast_bytes_hi,
                          fcoe_q_xstorm_stats->mcast_bytes_sent.hi,
                          afex_stats->tx_multicast_bytes_lo,
                          fcoe_q_xstorm_stats->mcast_bytes_sent.lo);

                ADD_64_LE(afex_stats->tx_unicast_frames_hi,
                          LE32_0,
                          afex_stats->tx_unicast_frames_lo,
                          fw_fcoe_stat->tx_stat.fcoe_tx_pkt_cnt);

                ADD_64_LE(afex_stats->tx_unicast_frames_hi,
                          LE32_0,
                          afex_stats->tx_unicast_frames_lo,
                          fcoe_q_xstorm_stats->ucast_pkts_sent);

                ADD_64_LE(afex_stats->tx_broadcast_frames_hi,
                          LE32_0,
                          afex_stats->tx_broadcast_frames_lo,
                          fcoe_q_xstorm_stats->bcast_pkts_sent);

                ADD_64_LE(afex_stats->tx_multicast_frames_hi,
                          LE32_0,
                          afex_stats->tx_multicast_frames_lo,
                          fcoe_q_xstorm_stats->mcast_pkts_sent);

                ADD_64_LE(afex_stats->tx_frames_dropped_hi,
                          LE32_0,
                          afex_stats->tx_frames_dropped_lo,
                          fcoe_q_xstorm_stats->error_drop_pkts);
        }

        /* if port stats are requested, add them to the PMF
         * stats, as anyway they will be accumulated by the
         * MCP before sent to the switch
         */
        if ((bp->port.pmf) && (stats_type == VICSTATST_UIF_INDEX)) {
                ADD_64(afex_stats->rx_frames_dropped_hi,
                       0,
                       afex_stats->rx_frames_dropped_lo,
                       estats->mac_filter_discard);
                ADD_64(afex_stats->rx_frames_dropped_hi,
                       0,
                       afex_stats->rx_frames_dropped_lo,
                       estats->brb_truncate_discard);
                ADD_64(afex_stats->rx_frames_discarded_hi,
                       0,
                       afex_stats->rx_frames_discarded_lo,
                       estats->mac_discard);
        }
}

int bnx2x_stats_safe_exec(struct bnx2x *bp,
                          void (func_to_exec)(void *cookie),
                          void *cookie)
{
        int cnt = 10, rc = 0;

        /* Wait for statistics to end [while blocking further requests],
         * then run supplied function 'safely'.
         */
        rc = down_timeout(&bp->stats_lock, HZ / 10);
        if (unlikely(rc)) {
                BNX2X_ERR("Failed to take statistics lock for safe execution\n");
                goto out_no_lock;
        }

        bnx2x_stats_comp(bp);
        while (bp->stats_pending && cnt--)
                if (bnx2x_storm_stats_update(bp))
                        usleep_range(1000, 2000);
        if (bp->stats_pending) {
                BNX2X_ERR("Failed to wait for stats pending to clear [possibly FW is stuck]\n");
                rc = -EBUSY;
                goto out;
        }

        func_to_exec(cookie);

out:
        /* No need to restart statistics - if they're enabled, the timer
         * will restart the statistics.
         */
        up(&bp->stats_lock);
out_no_lock:
        return rc;
}