/* bnx2x_dcb.c: Broadcom Everest network driver.
 *
 * Copyright 2009-2013 Broadcom Corporation
 *
 * Unless you and Broadcom execute a separate written software license
 * agreement governing use of this software, this software is licensed to you
 * under the terms of the GNU General Public License version 2, available
 * at http://www.gnu.org/licenses/old-licenses/gpl-2.0.html (the "GPL").
 *
 * Notwithstanding the above, under no circumstances may you combine this
 * software in any way with any other Broadcom software provided under a
 * license other than the GPL, without Broadcom's express prior written
 * consent.
 *
 * Maintained by: Eilon Greenstein <eilong@broadcom.com>
 * Written by: Dmitry Kravkov
 *
 */

#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt

#include <linux/netdevice.h>
#include <linux/types.h>
#include <linux/errno.h>
#include <linux/rtnetlink.h>
#include <net/dcbnl.h>

#include "bnx2x.h"
#include "bnx2x_cmn.h"
#include "bnx2x_dcb.h"

/* forward declarations of dcbx related functions */
static void bnx2x_pfc_set_pfc(struct bnx2x *bp);
static void bnx2x_dcbx_update_ets_params(struct bnx2x *bp);
static void bnx2x_dcbx_get_ets_pri_pg_tbl(struct bnx2x *bp,
                                          u32 *set_configuration_ets_pg,
                                          u32 *pri_pg_tbl);
static void bnx2x_dcbx_get_num_pg_traf_type(struct bnx2x *bp,
                                            u32 *pg_pri_orginal_spread,
                                            struct pg_help_data *help_data);
static void bnx2x_dcbx_fill_cos_params(struct bnx2x *bp,
                                       struct pg_help_data *help_data,
                                       struct dcbx_ets_feature *ets,
                                       u32 *pg_pri_orginal_spread);
static void bnx2x_dcbx_separate_pauseable_from_non(struct bnx2x *bp,
                                struct cos_help_data *cos_data,
                                u32 *pg_pri_orginal_spread,
                                struct dcbx_ets_feature *ets);
static void bnx2x_dcbx_fw_struct(struct bnx2x *bp,
                                 struct bnx2x_func_tx_start_params*);

/* helpers: read/write len bytes from addr into buff by REG_RD/REG_WR */
static void bnx2x_read_data(struct bnx2x *bp, u32 *buff,
                                   u32 addr, u32 len)
{
        int i;
        for (i = 0; i < len; i += 4, buff++)
                *buff = REG_RD(bp, addr + i);
}

static void bnx2x_write_data(struct bnx2x *bp, u32 *buff,
                                    u32 addr, u32 len)
{
        int i;
        for (i = 0; i < len; i += 4, buff++)
                REG_WR(bp, addr + i, *buff);
}

static void bnx2x_pfc_set(struct bnx2x *bp)
{
        struct bnx2x_nig_brb_pfc_port_params pfc_params = {0};
        u32 pri_bit, val = 0;
        int i;

        pfc_params.num_of_rx_cos_priority_mask =
                                        bp->dcbx_port_params.ets.num_of_cos;

        /* Tx COS configuration */
        for (i = 0; i < bp->dcbx_port_params.ets.num_of_cos; i++)
                /*
                 * We configure only the pauseable bits (non pauseable aren't
                 * configured at all) it's done to avoid false pauses from
                 * network
                 */
                pfc_params.rx_cos_priority_mask[i] =
                        bp->dcbx_port_params.ets.cos_params[i].pri_bitmask
                                & DCBX_PFC_PRI_PAUSE_MASK(bp);

        /*
         * Rx COS configuration
         * Changing PFC RX configuration .
         * In RX COS0 will always be configured to lossless and COS1 to lossy
         */
        for (i = 0 ; i < MAX_PFC_PRIORITIES ; i++) {
                pri_bit = 1 << i;

                if (!(pri_bit & DCBX_PFC_PRI_PAUSE_MASK(bp)))
                        val |= 1 << (i * 4);
        }

        pfc_params.pkt_priority_to_cos = val;

        /* RX COS0 */
        pfc_params.llfc_low_priority_classes = DCBX_PFC_PRI_PAUSE_MASK(bp);
        /* RX COS1 */
        pfc_params.llfc_high_priority_classes = 0;

        bnx2x_acquire_phy_lock(bp);
        bp->link_params.feature_config_flags |= FEATURE_CONFIG_PFC_ENABLED;
        bnx2x_update_pfc(&bp->link_params, &bp->link_vars, &pfc_params);
        bnx2x_release_phy_lock(bp);
}

static void bnx2x_pfc_clear(struct bnx2x *bp)
{
        struct bnx2x_nig_brb_pfc_port_params nig_params = {0};
        nig_params.pause_enable = 1;
        bnx2x_acquire_phy_lock(bp);
        bp->link_params.feature_config_flags &= ~FEATURE_CONFIG_PFC_ENABLED;
        bnx2x_update_pfc(&bp->link_params, &bp->link_vars, &nig_params);
        bnx2x_release_phy_lock(bp);
}

static void  bnx2x_dump_dcbx_drv_param(struct bnx2x *bp,
                                       struct dcbx_features *features,
                                       u32 error)
{
        u8 i = 0;
        DP(NETIF_MSG_LINK, "local_mib.error %x\n", error);

        /* PG */
        DP(NETIF_MSG_LINK,
           "local_mib.features.ets.enabled %x\n", features->ets.enabled);
        for (i = 0; i < DCBX_MAX_NUM_PG_BW_ENTRIES; i++)
                DP(NETIF_MSG_LINK,
                   "local_mib.features.ets.pg_bw_tbl[%d] %d\n", i,
                   DCBX_PG_BW_GET(features->ets.pg_bw_tbl, i));
        for (i = 0; i < DCBX_MAX_NUM_PRI_PG_ENTRIES; i++)
                DP(NETIF_MSG_LINK,
                   "local_mib.features.ets.pri_pg_tbl[%d] %d\n", i,
                   DCBX_PRI_PG_GET(features->ets.pri_pg_tbl, i));

        /* pfc */
        DP(BNX2X_MSG_DCB, "dcbx_features.pfc.pri_en_bitmap %x\n",
                                        features->pfc.pri_en_bitmap);
        DP(BNX2X_MSG_DCB, "dcbx_features.pfc.pfc_caps %x\n",
                                        features->pfc.pfc_caps);
        DP(BNX2X_MSG_DCB, "dcbx_features.pfc.enabled %x\n",
                                        features->pfc.enabled);

        DP(BNX2X_MSG_DCB, "dcbx_features.app.default_pri %x\n",
                                        features->app.default_pri);
        DP(BNX2X_MSG_DCB, "dcbx_features.app.tc_supported %x\n",
                                        features->app.tc_supported);
        DP(BNX2X_MSG_DCB, "dcbx_features.app.enabled %x\n",
                                        features->app.enabled);
        for (i = 0; i < DCBX_MAX_APP_PROTOCOL; i++) {
                DP(BNX2X_MSG_DCB,
                   "dcbx_features.app.app_pri_tbl[%x].app_id %x\n",
                   i, features->app.app_pri_tbl[i].app_id);
                DP(BNX2X_MSG_DCB,
                   "dcbx_features.app.app_pri_tbl[%x].pri_bitmap %x\n",
                   i, features->app.app_pri_tbl[i].pri_bitmap);
                DP(BNX2X_MSG_DCB,
                   "dcbx_features.app.app_pri_tbl[%x].appBitfield %x\n",
                   i, features->app.app_pri_tbl[i].appBitfield);
        }
}

static void bnx2x_dcbx_get_ap_priority(struct bnx2x *bp,
                                       u8 pri_bitmap,
                                       u8 llfc_traf_type)
{
        u32 pri = MAX_PFC_PRIORITIES;
        u32 index = MAX_PFC_PRIORITIES - 1;
        u32 pri_mask;
        u32 *ttp = bp->dcbx_port_params.app.traffic_type_priority;

        /* Choose the highest priority */
        while ((MAX_PFC_PRIORITIES == pri) && (0 != index)) {
                pri_mask = 1 << index;
                if (GET_FLAGS(pri_bitmap, pri_mask))
                        pri = index ;
                index--;
        }

        if (pri < MAX_PFC_PRIORITIES)
                ttp[llfc_traf_type] = max_t(u32, ttp[llfc_traf_type], pri);
}

static void bnx2x_dcbx_get_ap_feature(struct bnx2x *bp,
                                   struct dcbx_app_priority_feature *app,
                                   u32 error) {
        u8 index;
        u32 *ttp = bp->dcbx_port_params.app.traffic_type_priority;

        if (GET_FLAGS(error, DCBX_LOCAL_APP_ERROR))
                DP(BNX2X_MSG_DCB, "DCBX_LOCAL_APP_ERROR\n");

        if (GET_FLAGS(error, DCBX_LOCAL_APP_MISMATCH))
                DP(BNX2X_MSG_DCB, "DCBX_LOCAL_APP_MISMATCH\n");

        if (GET_FLAGS(error, DCBX_REMOTE_APP_TLV_NOT_FOUND))
                DP(BNX2X_MSG_DCB, "DCBX_REMOTE_APP_TLV_NOT_FOUND\n");
        if (app->enabled &&
            !GET_FLAGS(error, DCBX_LOCAL_APP_ERROR | DCBX_LOCAL_APP_MISMATCH |
                              DCBX_REMOTE_APP_TLV_NOT_FOUND)) {

                bp->dcbx_port_params.app.enabled = true;

                for (index = 0 ; index < LLFC_DRIVER_TRAFFIC_TYPE_MAX; index++)
                        ttp[index] = 0;

                if (app->default_pri < MAX_PFC_PRIORITIES)
                        ttp[LLFC_TRAFFIC_TYPE_NW] = app->default_pri;

                for (index = 0 ; index < DCBX_MAX_APP_PROTOCOL; index++) {
                        struct dcbx_app_priority_entry *entry =
                                                        app->app_pri_tbl;

                        if (GET_FLAGS(entry[index].appBitfield,
                                     DCBX_APP_SF_ETH_TYPE) &&
                           ETH_TYPE_FCOE == entry[index].app_id)
                                bnx2x_dcbx_get_ap_priority(bp,
                                                entry[index].pri_bitmap,
                                                LLFC_TRAFFIC_TYPE_FCOE);

                        if (GET_FLAGS(entry[index].appBitfield,
                                     DCBX_APP_SF_PORT) &&
                           TCP_PORT_ISCSI == entry[index].app_id)
                                bnx2x_dcbx_get_ap_priority(bp,
                                                entry[index].pri_bitmap,
                                                LLFC_TRAFFIC_TYPE_ISCSI);
                }
        } else {
                DP(BNX2X_MSG_DCB, "DCBX_LOCAL_APP_DISABLED\n");
                bp->dcbx_port_params.app.enabled = false;
                for (index = 0 ; index < LLFC_DRIVER_TRAFFIC_TYPE_MAX; index++)
                        ttp[index] = INVALID_TRAFFIC_TYPE_PRIORITY;
        }
}

static void bnx2x_dcbx_get_ets_feature(struct bnx2x *bp,
                                       struct dcbx_ets_feature *ets,
                                       u32 error) {
        int i = 0;
        u32 pg_pri_orginal_spread[DCBX_MAX_NUM_PG_BW_ENTRIES] = {0};
        struct pg_help_data pg_help_data;
        struct bnx2x_dcbx_cos_params *cos_params =
                        bp->dcbx_port_params.ets.cos_params;

        memset(&pg_help_data, 0, sizeof(struct pg_help_data));

        if (GET_FLAGS(error, DCBX_LOCAL_ETS_ERROR))
                DP(BNX2X_MSG_DCB, "DCBX_LOCAL_ETS_ERROR\n");

        if (GET_FLAGS(error, DCBX_REMOTE_ETS_TLV_NOT_FOUND))
                DP(BNX2X_MSG_DCB, "DCBX_REMOTE_ETS_TLV_NOT_FOUND\n");

        /* Clean up old settings of ets on COS */
        for (i = 0; i < ARRAY_SIZE(bp->dcbx_port_params.ets.cos_params) ; i++) {
                cos_params[i].pauseable = false;
                cos_params[i].strict = BNX2X_DCBX_STRICT_INVALID;
                cos_params[i].bw_tbl = DCBX_INVALID_COS_BW;
                cos_params[i].pri_bitmask = 0;
        }

        if (bp->dcbx_port_params.app.enabled && ets->enabled &&
           !GET_FLAGS(error,
                      DCBX_LOCAL_ETS_ERROR | DCBX_REMOTE_ETS_TLV_NOT_FOUND)) {
                DP(BNX2X_MSG_DCB, "DCBX_LOCAL_ETS_ENABLE\n");
                bp->dcbx_port_params.ets.enabled = true;

                bnx2x_dcbx_get_ets_pri_pg_tbl(bp,
                                              pg_pri_orginal_spread,
                                              ets->pri_pg_tbl);

                bnx2x_dcbx_get_num_pg_traf_type(bp,
                                                pg_pri_orginal_spread,
                                                &pg_help_data);

                bnx2x_dcbx_fill_cos_params(bp, &pg_help_data,
                                           ets, pg_pri_orginal_spread);

        } else {
                DP(BNX2X_MSG_DCB, "DCBX_LOCAL_ETS_DISABLED\n");
                bp->dcbx_port_params.ets.enabled = false;
                ets->pri_pg_tbl[0] = 0;

                for (i = 0; i < DCBX_MAX_NUM_PRI_PG_ENTRIES ; i++)
                        DCBX_PG_BW_SET(ets->pg_bw_tbl, i, 1);
        }
}

static void  bnx2x_dcbx_get_pfc_feature(struct bnx2x *bp,
                                        struct dcbx_pfc_feature *pfc, u32 error)
{
        if (GET_FLAGS(error, DCBX_LOCAL_PFC_ERROR))
                DP(BNX2X_MSG_DCB, "DCBX_LOCAL_PFC_ERROR\n");

        if (GET_FLAGS(error, DCBX_REMOTE_PFC_TLV_NOT_FOUND))
                DP(BNX2X_MSG_DCB, "DCBX_REMOTE_PFC_TLV_NOT_FOUND\n");
        if (bp->dcbx_port_params.app.enabled && pfc->enabled &&
           !GET_FLAGS(error, DCBX_LOCAL_PFC_ERROR | DCBX_LOCAL_PFC_MISMATCH |
                             DCBX_REMOTE_PFC_TLV_NOT_FOUND)) {
                bp->dcbx_port_params.pfc.enabled = true;
                bp->dcbx_port_params.pfc.priority_non_pauseable_mask =
                        ~(pfc->pri_en_bitmap);
        } else {
                DP(BNX2X_MSG_DCB, "DCBX_LOCAL_PFC_DISABLED\n");
                bp->dcbx_port_params.pfc.enabled = false;
                bp->dcbx_port_params.pfc.priority_non_pauseable_mask = 0;
        }
}

/* maps unmapped priorities to to the same COS as L2 */
static void bnx2x_dcbx_map_nw(struct bnx2x *bp)
{
        int i;
        u32 unmapped = (1 << MAX_PFC_PRIORITIES) - 1; /* all ones */
        u32 *ttp = bp->dcbx_port_params.app.traffic_type_priority;
        u32 nw_prio = 1 << ttp[LLFC_TRAFFIC_TYPE_NW];
        struct bnx2x_dcbx_cos_params *cos_params =
                        bp->dcbx_port_params.ets.cos_params;

        /* get unmapped priorities by clearing mapped bits */
        for (i = 0; i < LLFC_DRIVER_TRAFFIC_TYPE_MAX; i++)
                unmapped &= ~(1 << ttp[i]);

        /* find cos for nw prio and extend it with unmapped */
        for (i = 0; i < ARRAY_SIZE(bp->dcbx_port_params.ets.cos_params); i++) {
                if (cos_params[i].pri_bitmask & nw_prio) {
                        /* extend the bitmask with unmapped */
                        DP(BNX2X_MSG_DCB,
                           "cos %d extended with 0x%08x\n", i, unmapped);
                        cos_params[i].pri_bitmask |= unmapped;
                        break;
                }
        }
}

static void bnx2x_get_dcbx_drv_param(struct bnx2x *bp,
                                     struct dcbx_features *features,
                                     u32 error)
{
        bnx2x_dcbx_get_ap_feature(bp, &features->app, error);

        bnx2x_dcbx_get_pfc_feature(bp, &features->pfc, error);

        bnx2x_dcbx_get_ets_feature(bp, &features->ets, error);

        bnx2x_dcbx_map_nw(bp);
}

#define DCBX_LOCAL_MIB_MAX_TRY_READ             (100)
static int bnx2x_dcbx_read_mib(struct bnx2x *bp,
                               u32 *base_mib_addr,
                               u32 offset,
                               int read_mib_type)
{
        int max_try_read = 0;
        u32 mib_size, prefix_seq_num, suffix_seq_num;
        struct lldp_remote_mib *remote_mib ;
        struct lldp_local_mib  *local_mib;

        switch (read_mib_type) {
        case DCBX_READ_LOCAL_MIB:
                mib_size = sizeof(struct lldp_local_mib);
                break;
        case DCBX_READ_REMOTE_MIB:
                mib_size = sizeof(struct lldp_remote_mib);
                break;
        default:
                return 1; /*error*/
        }

        offset += BP_PORT(bp) * mib_size;

        do {
                bnx2x_read_data(bp, base_mib_addr, offset, mib_size);

                max_try_read++;

                switch (read_mib_type) {
                case DCBX_READ_LOCAL_MIB:
                        local_mib = (struct lldp_local_mib *) base_mib_addr;
                        prefix_seq_num = local_mib->prefix_seq_num;
                        suffix_seq_num = local_mib->suffix_seq_num;
                        break;
                case DCBX_READ_REMOTE_MIB:
                        remote_mib = (struct lldp_remote_mib *) base_mib_addr;
                        prefix_seq_num = remote_mib->prefix_seq_num;
                        suffix_seq_num = remote_mib->suffix_seq_num;
                        break;
                default:
                        return 1; /*error*/
                }
        } while ((prefix_seq_num != suffix_seq_num) &&
               (max_try_read < DCBX_LOCAL_MIB_MAX_TRY_READ));

        if (max_try_read >= DCBX_LOCAL_MIB_MAX_TRY_READ) {
                BNX2X_ERR("MIB could not be read\n");
                return 1;
        }

        return 0;
}

static void bnx2x_pfc_set_pfc(struct bnx2x *bp)
{
        int mfw_configured = SHMEM2_HAS(bp, drv_flags) &&
                             GET_FLAGS(SHMEM2_RD(bp, drv_flags),
                                       1 << DRV_FLAGS_DCB_MFW_CONFIGURED);

        if (bp->dcbx_port_params.pfc.enabled &&
            (!(bp->dcbx_error & DCBX_REMOTE_MIB_ERROR) || mfw_configured))
                /*
                 * 1. Fills up common PFC structures if required
                 * 2. Configure NIG, MAC and BRB via the elink
                 */
                bnx2x_pfc_set(bp);
        else
                bnx2x_pfc_clear(bp);
}

int bnx2x_dcbx_stop_hw_tx(struct bnx2x *bp)
{
        struct bnx2x_func_state_params func_params = {NULL};
        int rc;

        func_params.f_obj = &bp->func_obj;
        func_params.cmd = BNX2X_F_CMD_TX_STOP;

        __set_bit(RAMROD_COMP_WAIT, &func_params.ramrod_flags);
        __set_bit(RAMROD_RETRY, &func_params.ramrod_flags);

        DP(BNX2X_MSG_DCB, "STOP TRAFFIC\n");

        rc = bnx2x_func_state_change(bp, &func_params);
        if (rc) {
                BNX2X_ERR("Unable to hold traffic for HW configuration\n");
                bnx2x_panic();
        }

        return rc;
}

int bnx2x_dcbx_resume_hw_tx(struct bnx2x *bp)
{
        struct bnx2x_func_state_params func_params = {NULL};
        struct bnx2x_func_tx_start_params *tx_params =
                &func_params.params.tx_start;
        int rc;

        func_params.f_obj = &bp->func_obj;
        func_params.cmd = BNX2X_F_CMD_TX_START;

        __set_bit(RAMROD_COMP_WAIT, &func_params.ramrod_flags);
        __set_bit(RAMROD_RETRY, &func_params.ramrod_flags);

        bnx2x_dcbx_fw_struct(bp, tx_params);

        DP(BNX2X_MSG_DCB, "START TRAFFIC\n");

        rc = bnx2x_func_state_change(bp, &func_params);
        if (rc) {
                BNX2X_ERR("Unable to resume traffic after HW configuration\n");
                bnx2x_panic();
        }

        return rc;
}

static void bnx2x_dcbx_2cos_limit_update_ets_config(struct bnx2x *bp)
{
        struct bnx2x_dcbx_pg_params *ets = &(bp->dcbx_port_params.ets);
        int rc = 0;

        if (ets->num_of_cos == 0 || ets->num_of_cos > DCBX_COS_MAX_NUM_E2) {
                BNX2X_ERR("Illegal number of COSes %d\n", ets->num_of_cos);
                return;
        }

        /* valid COS entries */
        if (ets->num_of_cos == 1)   /* no ETS */
                return;

        /* sanity */
        if (((BNX2X_DCBX_STRICT_INVALID == ets->cos_params[0].strict) &&
             (DCBX_INVALID_COS_BW == ets->cos_params[0].bw_tbl)) ||
            ((BNX2X_DCBX_STRICT_INVALID == ets->cos_params[1].strict) &&
             (DCBX_INVALID_COS_BW == ets->cos_params[1].bw_tbl))) {
                BNX2X_ERR("all COS should have at least bw_limit or strict"
                            "ets->cos_params[0].strict= %x"
                            "ets->cos_params[0].bw_tbl= %x"
                            "ets->cos_params[1].strict= %x"
                            "ets->cos_params[1].bw_tbl= %x",
                          ets->cos_params[0].strict,
                          ets->cos_params[0].bw_tbl,
                          ets->cos_params[1].strict,
                          ets->cos_params[1].bw_tbl);
                return;
        }
        /* If we join a group and there is bw_tbl and strict then bw rules */
        if ((DCBX_INVALID_COS_BW != ets->cos_params[0].bw_tbl) &&
            (DCBX_INVALID_COS_BW != ets->cos_params[1].bw_tbl)) {
                u32 bw_tbl_0 = ets->cos_params[0].bw_tbl;
                u32 bw_tbl_1 = ets->cos_params[1].bw_tbl;
                /* Do not allow 0-100 configuration
                 * since PBF does not support it
                 * force 1-99 instead
                 */
                if (bw_tbl_0 == 0) {
                        bw_tbl_0 = 1;
                        bw_tbl_1 = 99;
                } else if (bw_tbl_1 == 0) {
                        bw_tbl_1 = 1;
                        bw_tbl_0 = 99;
                }

                bnx2x_ets_bw_limit(&bp->link_params, bw_tbl_0, bw_tbl_1);
        } else {
                if (ets->cos_params[0].strict == BNX2X_DCBX_STRICT_COS_HIGHEST)
                        rc = bnx2x_ets_strict(&bp->link_params, 0);
                else if (ets->cos_params[1].strict
                                        == BNX2X_DCBX_STRICT_COS_HIGHEST)
                        rc = bnx2x_ets_strict(&bp->link_params, 1);
                if (rc)
                        BNX2X_ERR("update_ets_params failed\n");
        }
}

/*
 * In E3B0 the configuration may have more than 2 COS.
 */
static void bnx2x_dcbx_update_ets_config(struct bnx2x *bp)
{
        struct bnx2x_dcbx_pg_params *ets = &(bp->dcbx_port_params.ets);
        struct bnx2x_ets_params ets_params = { 0 };
        u8 i;

        ets_params.num_of_cos = ets->num_of_cos;

        for (i = 0; i < ets->num_of_cos; i++) {
                /* COS is SP */
                if (ets->cos_params[i].strict != BNX2X_DCBX_STRICT_INVALID) {
                        if (ets->cos_params[i].bw_tbl != DCBX_INVALID_COS_BW) {
                                BNX2X_ERR("COS can't be not BW and not SP\n");
                                return;
                        }

                        ets_params.cos[i].state = bnx2x_cos_state_strict;
                        ets_params.cos[i].params.sp_params.pri =
                                                ets->cos_params[i].strict;
                } else { /* COS is BW */
                        if (ets->cos_params[i].bw_tbl == DCBX_INVALID_COS_BW) {
                                BNX2X_ERR("COS can't be not BW and not SP\n");
                                return;
                        }
                        ets_params.cos[i].state = bnx2x_cos_state_bw;
                        ets_params.cos[i].params.bw_params.bw =
                                                (u8)ets->cos_params[i].bw_tbl;
                }
        }

        /* Configure the ETS in HW */
        if (bnx2x_ets_e3b0_config(&bp->link_params, &bp->link_vars,
                                  &ets_params)) {
                BNX2X_ERR("bnx2x_ets_e3b0_config failed\n");
                bnx2x_ets_disabled(&bp->link_params, &bp->link_vars);
        }
}

static void bnx2x_dcbx_update_ets_params(struct bnx2x *bp)
{
        int mfw_configured = SHMEM2_HAS(bp, drv_flags) &&
                             GET_FLAGS(SHMEM2_RD(bp, drv_flags),
                                       1 << DRV_FLAGS_DCB_MFW_CONFIGURED);

        bnx2x_ets_disabled(&bp->link_params, &bp->link_vars);

        if (!bp->dcbx_port_params.ets.enabled ||
            ((bp->dcbx_error & DCBX_REMOTE_MIB_ERROR) && !mfw_configured))
                return;

        if (CHIP_IS_E3B0(bp))
                bnx2x_dcbx_update_ets_config(bp);
        else
                bnx2x_dcbx_2cos_limit_update_ets_config(bp);
}

#ifdef BCM_DCBNL
static int bnx2x_dcbx_read_shmem_remote_mib(struct bnx2x *bp)
{
        struct lldp_remote_mib remote_mib = {0};
        u32 dcbx_remote_mib_offset = SHMEM2_RD(bp, dcbx_remote_mib_offset);
        int rc;

        DP(BNX2X_MSG_DCB, "dcbx_remote_mib_offset 0x%x\n",
           dcbx_remote_mib_offset);

        if (SHMEM_DCBX_REMOTE_MIB_NONE == dcbx_remote_mib_offset) {
                BNX2X_ERR("FW doesn't support dcbx_remote_mib_offset\n");
                return -EINVAL;
        }

        rc = bnx2x_dcbx_read_mib(bp, (u32 *)&remote_mib, dcbx_remote_mib_offset,
                                 DCBX_READ_REMOTE_MIB);

        if (rc) {
                BNX2X_ERR("Failed to read remote mib from FW\n");
                return rc;
        }

        /* save features and flags */
        bp->dcbx_remote_feat = remote_mib.features;
        bp->dcbx_remote_flags = remote_mib.flags;
        return 0;
}
#endif

static int bnx2x_dcbx_read_shmem_neg_results(struct bnx2x *bp)
{
        struct lldp_local_mib local_mib = {0};
        u32 dcbx_neg_res_offset = SHMEM2_RD(bp, dcbx_neg_res_offset);
        int rc;

        DP(BNX2X_MSG_DCB, "dcbx_neg_res_offset 0x%x\n", dcbx_neg_res_offset);

        if (SHMEM_DCBX_NEG_RES_NONE == dcbx_neg_res_offset) {
                BNX2X_ERR("FW doesn't support dcbx_neg_res_offset\n");
                return -EINVAL;
        }

        rc = bnx2x_dcbx_read_mib(bp, (u32 *)&local_mib, dcbx_neg_res_offset,
                                 DCBX_READ_LOCAL_MIB);

        if (rc) {
                BNX2X_ERR("Failed to read local mib from FW\n");
                return rc;
        }

        /* save features and error */
        bp->dcbx_local_feat = local_mib.features;
        bp->dcbx_error = local_mib.error;
        return 0;
}

#ifdef BCM_DCBNL
static inline
u8 bnx2x_dcbx_dcbnl_app_up(struct dcbx_app_priority_entry *ent)
{
        u8 pri;

        /* Choose the highest priority */
        for (pri = MAX_PFC_PRIORITIES - 1; pri > 0; pri--)
                if (ent->pri_bitmap & (1 << pri))
                        break;
        return pri;
}

static inline
u8 bnx2x_dcbx_dcbnl_app_idtype(struct dcbx_app_priority_entry *ent)
{
        return ((ent->appBitfield & DCBX_APP_ENTRY_SF_MASK) ==
                DCBX_APP_SF_PORT) ? DCB_APP_IDTYPE_PORTNUM :
                DCB_APP_IDTYPE_ETHTYPE;
}

int bnx2x_dcbnl_update_applist(struct bnx2x *bp, bool delall)
{
        int i, err = 0;

        for (i = 0; i < DCBX_MAX_APP_PROTOCOL && err == 0; i++) {
                struct dcbx_app_priority_entry *ent =
                        &bp->dcbx_local_feat.app.app_pri_tbl[i];

                if (ent->appBitfield & DCBX_APP_ENTRY_VALID) {
                        u8 up = bnx2x_dcbx_dcbnl_app_up(ent);

                        /* avoid invalid user-priority */
                        if (up) {
                                struct dcb_app app;
                                app.selector = bnx2x_dcbx_dcbnl_app_idtype(ent);
                                app.protocol = ent->app_id;
                                app.priority = delall ? 0 : up;
                                err = dcb_setapp(bp->dev, &app);
                        }
                }
        }
        return err;
}
#endif

static inline void bnx2x_dcbx_update_tc_mapping(struct bnx2x *bp)
{
        u8 prio, cos;
        for (cos = 0; cos < bp->dcbx_port_params.ets.num_of_cos; cos++) {
                for (prio = 0; prio < BNX2X_MAX_PRIORITY; prio++) {
                        if (bp->dcbx_port_params.ets.cos_params[cos].pri_bitmask
                            & (1 << prio)) {
                                bp->prio_to_cos[prio] = cos;
                                DP(BNX2X_MSG_DCB,
                                   "tx_mapping %d --> %d\n", prio, cos);
                        }
                }
        }

        /* setup tc must be called under rtnl lock, but we can't take it here
         * as we are handling an attention on a work queue which must be
         * flushed at some rtnl-locked contexts (e.g. if down)
         */
        if (!test_and_set_bit(BNX2X_SP_RTNL_SETUP_TC, &bp->sp_rtnl_state))
                schedule_delayed_work(&bp->sp_rtnl_task, 0);
}

void bnx2x_dcbx_set_params(struct bnx2x *bp, u32 state)
{
        switch (state) {
        case BNX2X_DCBX_STATE_NEG_RECEIVED:
                {
                        DP(BNX2X_MSG_DCB, "BNX2X_DCBX_STATE_NEG_RECEIVED\n");
#ifdef BCM_DCBNL
                        /**
                         * Delete app tlvs from dcbnl before reading new
                         * negotiation results
                         */
                        bnx2x_dcbnl_update_applist(bp, true);

                        /* Read remote mib if dcbx is in the FW */
                        if (bnx2x_dcbx_read_shmem_remote_mib(bp))
                                return;
#endif
                        /* Read neg results if dcbx is in the FW */
                        if (bnx2x_dcbx_read_shmem_neg_results(bp))
                                return;

                        bnx2x_dump_dcbx_drv_param(bp, &bp->dcbx_local_feat,
                                                  bp->dcbx_error);

                        bnx2x_get_dcbx_drv_param(bp, &bp->dcbx_local_feat,
                                                 bp->dcbx_error);

                        /* mark DCBX result for PMF migration */
                        bnx2x_update_drv_flags(bp,
                                               1 << DRV_FLAGS_DCB_CONFIGURED,
                                               1);
#ifdef BCM_DCBNL
                        /*
                         * Add new app tlvs to dcbnl
                         */
                        bnx2x_dcbnl_update_applist(bp, false);
#endif
                        /*
                         * reconfigure the netdevice with the results of the new
                         * dcbx negotiation.
                         */
                        bnx2x_dcbx_update_tc_mapping(bp);

                        /*
                         * allow other functions to update their netdevices
                         * accordingly
                         */
                        if (IS_MF(bp))
                                bnx2x_link_sync_notify(bp);

                        set_bit(BNX2X_SP_RTNL_TX_STOP, &bp->sp_rtnl_state);

                        schedule_delayed_work(&bp->sp_rtnl_task, 0);

                        return;
                }
        case BNX2X_DCBX_STATE_TX_PAUSED:
                DP(BNX2X_MSG_DCB, "BNX2X_DCBX_STATE_TX_PAUSED\n");
                bnx2x_pfc_set_pfc(bp);

                bnx2x_dcbx_update_ets_params(bp);

                /* ets may affect cmng configuration: reinit it in hw */
                bnx2x_set_local_cmng(bp);

                set_bit(BNX2X_SP_RTNL_TX_RESUME, &bp->sp_rtnl_state);

                schedule_delayed_work(&bp->sp_rtnl_task, 0);

                return;
        case BNX2X_DCBX_STATE_TX_RELEASED:
                DP(BNX2X_MSG_DCB, "BNX2X_DCBX_STATE_TX_RELEASED\n");
                bnx2x_fw_command(bp, DRV_MSG_CODE_DCBX_PMF_DRV_OK, 0);
#ifdef BCM_DCBNL
                /*
                 * Send a notification for the new negotiated parameters
                 */
                dcbnl_cee_notify(bp->dev, RTM_GETDCB, DCB_CMD_CEE_GET, 0, 0);
#endif
                return;
        default:
                BNX2X_ERR("Unknown DCBX_STATE\n");
        }
}

#define LLDP_ADMIN_MIB_OFFSET(bp)       (PORT_MAX*sizeof(struct lldp_params) + \
                                      BP_PORT(bp)*sizeof(struct lldp_admin_mib))

static void bnx2x_dcbx_admin_mib_updated_params(struct bnx2x *bp,
                                u32 dcbx_lldp_params_offset)
{
        struct lldp_admin_mib admin_mib;
        u32 i, other_traf_type = PREDEFINED_APP_IDX_MAX, traf_type = 0;
        u32 offset = dcbx_lldp_params_offset + LLDP_ADMIN_MIB_OFFSET(bp);

        /*shortcuts*/
        struct dcbx_features *af = &admin_mib.features;
        struct bnx2x_config_dcbx_params *dp = &bp->dcbx_config_params;

        memset(&admin_mib, 0, sizeof(struct lldp_admin_mib));

        /* Read the data first */
        bnx2x_read_data(bp, (u32 *)&admin_mib, offset,
                        sizeof(struct lldp_admin_mib));

        if (bp->dcbx_enabled == BNX2X_DCBX_ENABLED_ON_NEG_ON)
                SET_FLAGS(admin_mib.ver_cfg_flags, DCBX_DCBX_ENABLED);
        else
                RESET_FLAGS(admin_mib.ver_cfg_flags, DCBX_DCBX_ENABLED);

        if (dp->overwrite_settings == BNX2X_DCBX_OVERWRITE_SETTINGS_ENABLE) {

                RESET_FLAGS(admin_mib.ver_cfg_flags, DCBX_CEE_VERSION_MASK);
                admin_mib.ver_cfg_flags |=
                        (dp->admin_dcbx_version << DCBX_CEE_VERSION_SHIFT) &
                         DCBX_CEE_VERSION_MASK;

                af->ets.enabled = (u8)dp->admin_ets_enable;

                af->pfc.enabled = (u8)dp->admin_pfc_enable;

                /* FOR IEEE dp->admin_tc_supported_tx_enable */
                if (dp->admin_ets_configuration_tx_enable)
                        SET_FLAGS(admin_mib.ver_cfg_flags,
                                  DCBX_ETS_CONFIG_TX_ENABLED);
                else
                        RESET_FLAGS(admin_mib.ver_cfg_flags,
                                    DCBX_ETS_CONFIG_TX_ENABLED);
                /* For IEEE admin_ets_recommendation_tx_enable */
                if (dp->admin_pfc_tx_enable)
                        SET_FLAGS(admin_mib.ver_cfg_flags,
                                  DCBX_PFC_CONFIG_TX_ENABLED);
                else
                        RESET_FLAGS(admin_mib.ver_cfg_flags,
                                  DCBX_PFC_CONFIG_TX_ENABLED);

                if (dp->admin_application_priority_tx_enable)
                        SET_FLAGS(admin_mib.ver_cfg_flags,
                                  DCBX_APP_CONFIG_TX_ENABLED);
                else
                        RESET_FLAGS(admin_mib.ver_cfg_flags,
                                  DCBX_APP_CONFIG_TX_ENABLED);

                if (dp->admin_ets_willing)
                        SET_FLAGS(admin_mib.ver_cfg_flags, DCBX_ETS_WILLING);
                else
                        RESET_FLAGS(admin_mib.ver_cfg_flags, DCBX_ETS_WILLING);
                /* For IEEE admin_ets_reco_valid */
                if (dp->admin_pfc_willing)
                        SET_FLAGS(admin_mib.ver_cfg_flags, DCBX_PFC_WILLING);
                else
                        RESET_FLAGS(admin_mib.ver_cfg_flags, DCBX_PFC_WILLING);

                if (dp->admin_app_priority_willing)
                        SET_FLAGS(admin_mib.ver_cfg_flags, DCBX_APP_WILLING);
                else
                        RESET_FLAGS(admin_mib.ver_cfg_flags, DCBX_APP_WILLING);

                for (i = 0 ; i < DCBX_MAX_NUM_PG_BW_ENTRIES; i++) {
                        DCBX_PG_BW_SET(af->ets.pg_bw_tbl, i,
                                (u8)dp->admin_configuration_bw_precentage[i]);

                        DP(BNX2X_MSG_DCB, "pg_bw_tbl[%d] = %02x\n",
                           i, DCBX_PG_BW_GET(af->ets.pg_bw_tbl, i));
                }

                for (i = 0; i < DCBX_MAX_NUM_PRI_PG_ENTRIES; i++) {
                        DCBX_PRI_PG_SET(af->ets.pri_pg_tbl, i,
                                        (u8)dp->admin_configuration_ets_pg[i]);

                        DP(BNX2X_MSG_DCB, "pri_pg_tbl[%d] = %02x\n",
                           i, DCBX_PRI_PG_GET(af->ets.pri_pg_tbl, i));
                }

                /*For IEEE admin_recommendation_bw_percentage
                 *For IEEE admin_recommendation_ets_pg */
                af->pfc.pri_en_bitmap = (u8)dp->admin_pfc_bitmap;
                for (i = 0; i < DCBX_CONFIG_MAX_APP_PROTOCOL; i++) {
                        if (dp->admin_priority_app_table[i].valid) {
                                struct bnx2x_admin_priority_app_table *table =
                                        dp->admin_priority_app_table;
                                if ((ETH_TYPE_FCOE == table[i].app_id) &&
                                   (TRAFFIC_TYPE_ETH == table[i].traffic_type))
                                        traf_type = FCOE_APP_IDX;
                                else if ((TCP_PORT_ISCSI == table[i].app_id) &&
                                   (TRAFFIC_TYPE_PORT == table[i].traffic_type))
                                        traf_type = ISCSI_APP_IDX;
                                else
                                        traf_type = other_traf_type++;

                                af->app.app_pri_tbl[traf_type].app_id =
                                        table[i].app_id;

                                af->app.app_pri_tbl[traf_type].pri_bitmap =
                                        (u8)(1 << table[i].priority);

                                af->app.app_pri_tbl[traf_type].appBitfield =
                                    (DCBX_APP_ENTRY_VALID);

                                af->app.app_pri_tbl[traf_type].appBitfield |=
                                   (TRAFFIC_TYPE_ETH == table[i].traffic_type) ?
                                        DCBX_APP_SF_ETH_TYPE : DCBX_APP_SF_PORT;
                        }
                }

                af->app.default_pri = (u8)dp->admin_default_priority;
        }

        /* Write the data. */
        bnx2x_write_data(bp, (u32 *)&admin_mib, offset,
                         sizeof(struct lldp_admin_mib));
}

void bnx2x_dcbx_set_state(struct bnx2x *bp, bool dcb_on, u32 dcbx_enabled)
{
        if (!CHIP_IS_E1x(bp)) {
                bp->dcb_state = dcb_on;
                bp->dcbx_enabled = dcbx_enabled;
        } else {
                bp->dcb_state = false;
                bp->dcbx_enabled = BNX2X_DCBX_ENABLED_INVALID;
        }
        DP(BNX2X_MSG_DCB, "DCB state [%s:%s]\n",
           dcb_on ? "ON" : "OFF",
           dcbx_enabled == BNX2X_DCBX_ENABLED_OFF ? "user-mode" :
           dcbx_enabled == BNX2X_DCBX_ENABLED_ON_NEG_OFF ? "on-chip static" :
           dcbx_enabled == BNX2X_DCBX_ENABLED_ON_NEG_ON ?
           "on-chip with negotiation" : "invalid");
}

void bnx2x_dcbx_init_params(struct bnx2x *bp)
{
        bp->dcbx_config_params.admin_dcbx_version = 0x0; /* 0 - CEE; 1 - IEEE */
        bp->dcbx_config_params.admin_ets_willing = 1;
        bp->dcbx_config_params.admin_pfc_willing = 1;
        bp->dcbx_config_params.overwrite_settings = 1;
        bp->dcbx_config_params.admin_ets_enable = 1;
        bp->dcbx_config_params.admin_pfc_enable = 1;
        bp->dcbx_config_params.admin_tc_supported_tx_enable = 1;
        bp->dcbx_config_params.admin_ets_configuration_tx_enable = 1;
        bp->dcbx_config_params.admin_pfc_tx_enable = 1;
        bp->dcbx_config_params.admin_application_priority_tx_enable = 1;
        bp->dcbx_config_params.admin_ets_reco_valid = 1;
        bp->dcbx_config_params.admin_app_priority_willing = 1;
        bp->dcbx_config_params.admin_configuration_bw_precentage[0] = 100;
        bp->dcbx_config_params.admin_configuration_bw_precentage[1] = 0;
        bp->dcbx_config_params.admin_configuration_bw_precentage[2] = 0;
        bp->dcbx_config_params.admin_configuration_bw_precentage[3] = 0;
        bp->dcbx_config_params.admin_configuration_bw_precentage[4] = 0;
        bp->dcbx_config_params.admin_configuration_bw_precentage[5] = 0;
        bp->dcbx_config_params.admin_configuration_bw_precentage[6] = 0;
        bp->dcbx_config_params.admin_configuration_bw_precentage[7] = 0;
        bp->dcbx_config_params.admin_configuration_ets_pg[0] = 0;
        bp->dcbx_config_params.admin_configuration_ets_pg[1] = 0;
        bp->dcbx_config_params.admin_configuration_ets_pg[2] = 0;
        bp->dcbx_config_params.admin_configuration_ets_pg[3] = 0;
        bp->dcbx_config_params.admin_configuration_ets_pg[4] = 0;
        bp->dcbx_config_params.admin_configuration_ets_pg[5] = 0;
        bp->dcbx_config_params.admin_configuration_ets_pg[6] = 0;
        bp->dcbx_config_params.admin_configuration_ets_pg[7] = 0;
        bp->dcbx_config_params.admin_recommendation_bw_precentage[0] = 100;
        bp->dcbx_config_params.admin_recommendation_bw_precentage[1] = 0;
        bp->dcbx_config_params.admin_recommendation_bw_precentage[2] = 0;
        bp->dcbx_config_params.admin_recommendation_bw_precentage[3] = 0;
        bp->dcbx_config_params.admin_recommendation_bw_precentage[4] = 0;
        bp->dcbx_config_params.admin_recommendation_bw_precentage[5] = 0;
        bp->dcbx_config_params.admin_recommendation_bw_precentage[6] = 0;
        bp->dcbx_config_params.admin_recommendation_bw_precentage[7] = 0;
        bp->dcbx_config_params.admin_recommendation_ets_pg[0] = 0;
        bp->dcbx_config_params.admin_recommendation_ets_pg[1] = 1;
        bp->dcbx_config_params.admin_recommendation_ets_pg[2] = 2;
        bp->dcbx_config_params.admin_recommendation_ets_pg[3] = 3;
        bp->dcbx_config_params.admin_recommendation_ets_pg[4] = 4;
        bp->dcbx_config_params.admin_recommendation_ets_pg[5] = 5;
        bp->dcbx_config_params.admin_recommendation_ets_pg[6] = 6;
        bp->dcbx_config_params.admin_recommendation_ets_pg[7] = 7;
        bp->dcbx_config_params.admin_pfc_bitmap = 0x0;
        bp->dcbx_config_params.admin_priority_app_table[0].valid = 0;
        bp->dcbx_config_params.admin_priority_app_table[1].valid = 0;
        bp->dcbx_config_params.admin_priority_app_table[2].valid = 0;
        bp->dcbx_config_params.admin_priority_app_table[3].valid = 0;
        bp->dcbx_config_params.admin_default_priority = 0;
}

void bnx2x_dcbx_init(struct bnx2x *bp, bool update_shmem)
{
        u32 dcbx_lldp_params_offset = SHMEM_LLDP_DCBX_PARAMS_NONE;

        /* only PMF can send ADMIN msg to MFW in old MFW versions */
        if ((!bp->port.pmf) && (!(bp->flags & BC_SUPPORTS_DCBX_MSG_NON_PMF)))
                return;

        if (bp->dcbx_enabled <= 0)
                return;

        /* validate:
         * chip of good for dcbx version,
         * dcb is wanted
         * shmem2 contains DCBX support fields
         */
        DP(BNX2X_MSG_DCB, "dcb_state %d bp->port.pmf %d\n",
           bp->dcb_state, bp->port.pmf);

        if (bp->dcb_state == BNX2X_DCB_STATE_ON &&
            SHMEM2_HAS(bp, dcbx_lldp_params_offset)) {
                dcbx_lldp_params_offset =
                        SHMEM2_RD(bp, dcbx_lldp_params_offset);

                DP(BNX2X_MSG_DCB, "dcbx_lldp_params_offset 0x%x\n",
                   dcbx_lldp_params_offset);

                bnx2x_update_drv_flags(bp, 1 << DRV_FLAGS_DCB_CONFIGURED, 0);

                if (SHMEM_LLDP_DCBX_PARAMS_NONE != dcbx_lldp_params_offset) {
                        /* need HW lock to avoid scenario of two drivers
                         * writing in parallel to shmem
                         */
                        bnx2x_acquire_hw_lock(bp,
                                              HW_LOCK_RESOURCE_DCBX_ADMIN_MIB);
                        if (update_shmem)
                                bnx2x_dcbx_admin_mib_updated_params(bp,
                                        dcbx_lldp_params_offset);

                        /* Let HW start negotiation */
                        bnx2x_fw_command(bp,
                                         DRV_MSG_CODE_DCBX_ADMIN_PMF_MSG, 0);
                        /* release HW lock only after MFW acks that it finished
                         * reading values from shmem
                         */
                        bnx2x_release_hw_lock(bp,
                                              HW_LOCK_RESOURCE_DCBX_ADMIN_MIB);
                }
        }
}
static void
bnx2x_dcbx_print_cos_params(struct bnx2x *bp,
                            struct bnx2x_func_tx_start_params *pfc_fw_cfg)
{
        u8 pri = 0;
        u8 cos = 0;

        DP(BNX2X_MSG_DCB,
           "pfc_fw_cfg->dcb_version %x\n", pfc_fw_cfg->dcb_version);
        DP(BNX2X_MSG_DCB,
           "pdev->params.dcbx_port_params.pfc.priority_non_pauseable_mask %x\n",
           bp->dcbx_port_params.pfc.priority_non_pauseable_mask);

        for (cos = 0 ; cos < bp->dcbx_port_params.ets.num_of_cos ; cos++) {
                DP(BNX2X_MSG_DCB,
                   "pdev->params.dcbx_port_params.ets.cos_params[%d].pri_bitmask %x\n",
                   cos, bp->dcbx_port_params.ets.cos_params[cos].pri_bitmask);

                DP(BNX2X_MSG_DCB,
                   "pdev->params.dcbx_port_params.ets.cos_params[%d].bw_tbl %x\n",
                   cos, bp->dcbx_port_params.ets.cos_params[cos].bw_tbl);

                DP(BNX2X_MSG_DCB,
                   "pdev->params.dcbx_port_params.ets.cos_params[%d].strict %x\n",
                   cos, bp->dcbx_port_params.ets.cos_params[cos].strict);

                DP(BNX2X_MSG_DCB,
                   "pdev->params.dcbx_port_params.ets.cos_params[%d].pauseable %x\n",
                   cos, bp->dcbx_port_params.ets.cos_params[cos].pauseable);
        }

        for (pri = 0; pri < LLFC_DRIVER_TRAFFIC_TYPE_MAX; pri++) {
                DP(BNX2X_MSG_DCB,
                   "pfc_fw_cfg->traffic_type_to_priority_cos[%d].priority %x\n",
                   pri, pfc_fw_cfg->traffic_type_to_priority_cos[pri].priority);

                DP(BNX2X_MSG_DCB,
                   "pfc_fw_cfg->traffic_type_to_priority_cos[%d].cos %x\n",
                   pri, pfc_fw_cfg->traffic_type_to_priority_cos[pri].cos);
        }
}

/* fills help_data according to pg_info */
static void bnx2x_dcbx_get_num_pg_traf_type(struct bnx2x *bp,
                                            u32 *pg_pri_orginal_spread,
                                            struct pg_help_data *help_data)
{
        bool pg_found  = false;
        u32 i, traf_type, add_traf_type, add_pg;
        u32 *ttp = bp->dcbx_port_params.app.traffic_type_priority;
        struct pg_entry_help_data *data = help_data->data; /*shortcut*/

        /* Set to invalid */
        for (i = 0; i < LLFC_DRIVER_TRAFFIC_TYPE_MAX; i++)
                data[i].pg = DCBX_ILLEGAL_PG;

        for (add_traf_type = 0;
             add_traf_type < LLFC_DRIVER_TRAFFIC_TYPE_MAX; add_traf_type++) {
                pg_found = false;
                if (ttp[add_traf_type] < MAX_PFC_PRIORITIES) {
                        add_pg = (u8)pg_pri_orginal_spread[ttp[add_traf_type]];
                        for (traf_type = 0;
                             traf_type < LLFC_DRIVER_TRAFFIC_TYPE_MAX;
                             traf_type++) {
                                if (data[traf_type].pg == add_pg) {
                                        if (!(data[traf_type].pg_priority &
                                             (1 << ttp[add_traf_type])))
                                                data[traf_type].
                                                        num_of_dif_pri++;
                                        data[traf_type].pg_priority |=
                                                (1 << ttp[add_traf_type]);
                                        pg_found = true;
                                        break;
                                }
                        }
                        if (false == pg_found) {
                                data[help_data->num_of_pg].pg = add_pg;
                                data[help_data->num_of_pg].pg_priority =
                                                (1 << ttp[add_traf_type]);
                                data[help_data->num_of_pg].num_of_dif_pri = 1;
                                help_data->num_of_pg++;
                        }
                }
                DP(BNX2X_MSG_DCB,
                   "add_traf_type %d pg_found %s num_of_pg %d\n",
                   add_traf_type, (false == pg_found) ? "NO" : "YES",
                   help_data->num_of_pg);
        }
}

static void bnx2x_dcbx_ets_disabled_entry_data(struct bnx2x *bp,
                                               struct cos_help_data *cos_data,
                                               u32 pri_join_mask)
{
        /* Only one priority than only one COS */
        cos_data->data[0].pausable =
                IS_DCBX_PFC_PRI_ONLY_PAUSE(bp, pri_join_mask);
        cos_data->data[0].pri_join_mask = pri_join_mask;
        cos_data->data[0].cos_bw = 100;
        cos_data->num_of_cos = 1;
}

static inline void bnx2x_dcbx_add_to_cos_bw(struct bnx2x *bp,
                                            struct cos_entry_help_data *data,
                                            u8 pg_bw)
{
        if (data->cos_bw == DCBX_INVALID_COS_BW)
                data->cos_bw = pg_bw;
        else
                data->cos_bw += pg_bw;
}

static void bnx2x_dcbx_separate_pauseable_from_non(struct bnx2x *bp,
                        struct cos_help_data *cos_data,
                        u32 *pg_pri_orginal_spread,
                        struct dcbx_ets_feature *ets)
{
        u32     pri_tested      = 0;
        u8      i               = 0;
        u8      entry           = 0;
        u8      pg_entry        = 0;
        u8      num_of_pri      = LLFC_DRIVER_TRAFFIC_TYPE_MAX;

        cos_data->data[0].pausable = true;
        cos_data->data[1].pausable = false;
        cos_data->data[0].pri_join_mask = cos_data->data[1].pri_join_mask = 0;

        for (i = 0 ; i < num_of_pri ; i++) {
                pri_tested = 1 << bp->dcbx_port_params.
                                        app.traffic_type_priority[i];

                if (pri_tested & DCBX_PFC_PRI_NON_PAUSE_MASK(bp)) {
                        cos_data->data[1].pri_join_mask |= pri_tested;
                        entry = 1;
                } else {
                        cos_data->data[0].pri_join_mask |= pri_tested;
                        entry = 0;
                }
                pg_entry = (u8)pg_pri_orginal_spread[bp->dcbx_port_params.
                                                app.traffic_type_priority[i]];
                /* There can be only one strict pg */
                if (pg_entry < DCBX_MAX_NUM_PG_BW_ENTRIES)
                        bnx2x_dcbx_add_to_cos_bw(bp, &cos_data->data[entry],
                                DCBX_PG_BW_GET(ets->pg_bw_tbl, pg_entry));
                else
                        /* If we join a group and one is strict
                         * than the bw rules
                         */
                        cos_data->data[entry].strict =
                                                BNX2X_DCBX_STRICT_COS_HIGHEST;
        }
        if ((0 == cos_data->data[0].pri_join_mask) &&
            (0 == cos_data->data[1].pri_join_mask))
                BNX2X_ERR("dcbx error: Both groups must have priorities\n");
}

#ifndef POWER_OF_2
#define POWER_OF_2(x)   ((0 != x) && (0 == (x & (x-1))))
#endif

static void bnx2x_dcbx_2cos_limit_cee_single_pg_to_cos_params(struct bnx2x *bp,
                                              struct pg_help_data *pg_help_data,
                                              struct cos_help_data *cos_data,
                                              u32 pri_join_mask,
                                              u8 num_of_dif_pri)
{
        u8 i = 0;
        u32 pri_tested = 0;
        u32 pri_mask_without_pri = 0;
        u32 *ttp = bp->dcbx_port_params.app.traffic_type_priority;
        /*debug*/
        if (num_of_dif_pri == 1) {
                bnx2x_dcbx_ets_disabled_entry_data(bp, cos_data, pri_join_mask);
                return;
        }
        /* single priority group */
        if (pg_help_data->data[0].pg < DCBX_MAX_NUM_PG_BW_ENTRIES) {
                /* If there are both pauseable and non-pauseable priorities,
                 * the pauseable priorities go to the first queue and
                 * the non-pauseable priorities go to the second queue.
                 */
                if (IS_DCBX_PFC_PRI_MIX_PAUSE(bp, pri_join_mask)) {
                        /* Pauseable */
                        cos_data->data[0].pausable = true;
                        /* Non pauseable.*/
                        cos_data->data[1].pausable = false;

                        if (2 == num_of_dif_pri) {
                                cos_data->data[0].cos_bw = 50;
                                cos_data->data[1].cos_bw = 50;
                        }

                        if (3 == num_of_dif_pri) {
                                if (POWER_OF_2(DCBX_PFC_PRI_GET_PAUSE(bp,
                                                        pri_join_mask))) {
                                        cos_data->data[0].cos_bw = 33;
                                        cos_data->data[1].cos_bw = 67;
                                } else {
                                        cos_data->data[0].cos_bw = 67;
                                        cos_data->data[1].cos_bw = 33;
                                }
                        }

                } else if (IS_DCBX_PFC_PRI_ONLY_PAUSE(bp, pri_join_mask)) {
                        /* If there are only pauseable priorities,
                         * then one/two priorities go to the first queue
                         * and one priority goes to the second queue.
                         */
                        if (2 == num_of_dif_pri) {
                                cos_data->data[0].cos_bw = 50;
                                cos_data->data[1].cos_bw = 50;
                        } else {
                                cos_data->data[0].cos_bw = 67;
                                cos_data->data[1].cos_bw = 33;
                        }
                        cos_data->data[1].pausable = true;
                        cos_data->data[0].pausable = true;
                        /* All priorities except FCOE */
                        cos_data->data[0].pri_join_mask = (pri_join_mask &
                                ((u8)~(1 << ttp[LLFC_TRAFFIC_TYPE_FCOE])));
                        /* Only FCOE priority.*/
                        cos_data->data[1].pri_join_mask =
                                (1 << ttp[LLFC_TRAFFIC_TYPE_FCOE]);
                } else
                        /* If there are only non-pauseable priorities,
                         * they will all go to the same queue.
                         */
                        bnx2x_dcbx_ets_disabled_entry_data(bp,
                                                cos_data, pri_join_mask);
        } else {
                /* priority group which is not BW limited (PG#15):*/
                if (IS_DCBX_PFC_PRI_MIX_PAUSE(bp, pri_join_mask)) {
                        /* If there are both pauseable and non-pauseable
                         * priorities, the pauseable priorities go to the first
                         * queue and the non-pauseable priorities
                         * go to the second queue.
                         */
                        if (DCBX_PFC_PRI_GET_PAUSE(bp, pri_join_mask) >
                            DCBX_PFC_PRI_GET_NON_PAUSE(bp, pri_join_mask)) {
                                cos_data->data[0].strict =
                                        BNX2X_DCBX_STRICT_COS_HIGHEST;
                                cos_data->data[1].strict =
                                        BNX2X_DCBX_STRICT_COS_NEXT_LOWER_PRI(
                                                BNX2X_DCBX_STRICT_COS_HIGHEST);
                        } else {
                                cos_data->data[0].strict =
                                        BNX2X_DCBX_STRICT_COS_NEXT_LOWER_PRI(
                                                BNX2X_DCBX_STRICT_COS_HIGHEST);
                                cos_data->data[1].strict =
                                        BNX2X_DCBX_STRICT_COS_HIGHEST;
                        }
                        /* Pauseable */
                        cos_data->data[0].pausable = true;
                        /* Non pause-able.*/
                        cos_data->data[1].pausable = false;
                } else {
                        /* If there are only pauseable priorities or
                         * only non-pauseable,* the lower priorities go
                         * to the first queue and the higher priorities go
                         * to the second queue.
                         */
                        cos_data->data[0].pausable =
                                cos_data->data[1].pausable =
                                IS_DCBX_PFC_PRI_ONLY_PAUSE(bp, pri_join_mask);

                        for (i = 0 ; i < LLFC_DRIVER_TRAFFIC_TYPE_MAX; i++) {
                                pri_tested = 1 << bp->dcbx_port_params.
                                        app.traffic_type_priority[i];
                                /* Remove priority tested */
                                pri_mask_without_pri =
                                        (pri_join_mask & ((u8)(~pri_tested)));
                                if (pri_mask_without_pri < pri_tested)
                                        break;
                        }

                        if (i == LLFC_DRIVER_TRAFFIC_TYPE_MAX)
                                BNX2X_ERR("Invalid value for pri_join_mask - could not find a priority\n");

                        cos_data->data[0].pri_join_mask = pri_mask_without_pri;
                        cos_data->data[1].pri_join_mask = pri_tested;
                        /* Both queues are strict priority,
                         * and that with the highest priority
                         * gets the highest strict priority in the arbiter.
                         */
                        cos_data->data[0].strict =
                                        BNX2X_DCBX_STRICT_COS_NEXT_LOWER_PRI(
                                                BNX2X_DCBX_STRICT_COS_HIGHEST);
                        cos_data->data[1].strict =
                                        BNX2X_DCBX_STRICT_COS_HIGHEST;
                }
        }
}

static void bnx2x_dcbx_2cos_limit_cee_two_pg_to_cos_params(
                            struct bnx2x                *bp,
                            struct  pg_help_data        *pg_help_data,
                            struct dcbx_ets_feature     *ets,
                            struct cos_help_data        *cos_data,
                            u32                 *pg_pri_orginal_spread,
                            u32                         pri_join_mask,
                            u8                          num_of_dif_pri)
{
        u8 i = 0;
        u8 pg[DCBX_COS_MAX_NUM_E2] = { 0 };

        /* If there are both pauseable and non-pauseable priorities,
         * the pauseable priorities go to the first queue and
         * the non-pauseable priorities go to the second queue.
         */
        if (IS_DCBX_PFC_PRI_MIX_PAUSE(bp, pri_join_mask)) {
                if (IS_DCBX_PFC_PRI_MIX_PAUSE(bp,
                                         pg_help_data->data[0].pg_priority) ||
                    IS_DCBX_PFC_PRI_MIX_PAUSE(bp,
                                         pg_help_data->data[1].pg_priority)) {
                        /* If one PG contains both pauseable and
                         * non-pauseable priorities then ETS is disabled.
                         */
                        bnx2x_dcbx_separate_pauseable_from_non(bp, cos_data,
                                        pg_pri_orginal_spread, ets);
                        bp->dcbx_port_params.ets.enabled = false;
                        return;
                }

                /* Pauseable */
                cos_data->data[0].pausable = true;
                /* Non pauseable. */
                cos_data->data[1].pausable = false;
                if (IS_DCBX_PFC_PRI_ONLY_PAUSE(bp,
                                pg_help_data->data[0].pg_priority)) {
                        /* 0 is pauseable */
                        cos_data->data[0].pri_join_mask =
                                pg_help_data->data[0].pg_priority;
                        pg[0] = pg_help_data->data[0].pg;
                        cos_data->data[1].pri_join_mask =
                                pg_help_data->data[1].pg_priority;
                        pg[1] = pg_help_data->data[1].pg;
                } else {/* 1 is pauseable */
                        cos_data->data[0].pri_join_mask =
                                pg_help_data->data[1].pg_priority;
                        pg[0] = pg_help_data->data[1].pg;
                        cos_data->data[1].pri_join_mask =
                                pg_help_data->data[0].pg_priority;
                        pg[1] = pg_help_data->data[0].pg;
                }
        } else {
                /* If there are only pauseable priorities or
                 * only non-pauseable, each PG goes to a queue.
                 */
                cos_data->data[0].pausable = cos_data->data[1].pausable =
                        IS_DCBX_PFC_PRI_ONLY_PAUSE(bp, pri_join_mask);
                cos_data->data[0].pri_join_mask =
                        pg_help_data->data[0].pg_priority;
                pg[0] = pg_help_data->data[0].pg;
                cos_data->data[1].pri_join_mask =
                        pg_help_data->data[1].pg_priority;
                pg[1] = pg_help_data->data[1].pg;
        }

        /* There can be only one strict pg */
        for (i = 0 ; i < ARRAY_SIZE(pg); i++) {
                if (pg[i] < DCBX_MAX_NUM_PG_BW_ENTRIES)
                        cos_data->data[i].cos_bw =
                                DCBX_PG_BW_GET(ets->pg_bw_tbl, pg[i]);
                else
                        cos_data->data[i].strict =
                                                BNX2X_DCBX_STRICT_COS_HIGHEST;
        }
}

static int bnx2x_dcbx_join_pgs(
                              struct bnx2x            *bp,
                              struct dcbx_ets_feature *ets,
                              struct pg_help_data     *pg_help_data,
                              u8                      required_num_of_pg)
{
        u8 entry_joined    = pg_help_data->num_of_pg - 1;
        u8 entry_removed   = entry_joined + 1;
        u8 pg_joined       = 0;

        if (required_num_of_pg == 0 || ARRAY_SIZE(pg_help_data->data)
                                                <= pg_help_data->num_of_pg) {

                BNX2X_ERR("required_num_of_pg can't be zero\n");
                return -EINVAL;
        }

        while (required_num_of_pg < pg_help_data->num_of_pg) {
                entry_joined = pg_help_data->num_of_pg - 2;
                entry_removed = entry_joined + 1;
                /* protect index */
                entry_removed %= ARRAY_SIZE(pg_help_data->data);

                pg_help_data->data[entry_joined].pg_priority |=
                        pg_help_data->data[entry_removed].pg_priority;

                pg_help_data->data[entry_joined].num_of_dif_pri +=
                        pg_help_data->data[entry_removed].num_of_dif_pri;

                if (pg_help_data->data[entry_joined].pg == DCBX_STRICT_PRI_PG ||
                    pg_help_data->data[entry_removed].pg == DCBX_STRICT_PRI_PG)
                        /* Entries joined strict priority rules */
                        pg_help_data->data[entry_joined].pg =
                                                        DCBX_STRICT_PRI_PG;
                else {
                        /* Entries can be joined join BW */
                        pg_joined = DCBX_PG_BW_GET(ets->pg_bw_tbl,
                                        pg_help_data->data[entry_joined].pg) +
                                    DCBX_PG_BW_GET(ets->pg_bw_tbl,
                                        pg_help_data->data[entry_removed].pg);

                        DCBX_PG_BW_SET(ets->pg_bw_tbl,
                                pg_help_data->data[entry_joined].pg, pg_joined);
                }
                /* Joined the entries */
                pg_help_data->num_of_pg--;
        }

        return 0;
}

static void bnx2x_dcbx_2cos_limit_cee_three_pg_to_cos_params(
                              struct bnx2x              *bp,
                              struct pg_help_data       *pg_help_data,
                              struct dcbx_ets_feature   *ets,
                              struct cos_help_data      *cos_data,
                              u32                       *pg_pri_orginal_spread,
                              u32                       pri_join_mask,
                              u8                        num_of_dif_pri)
{
        u8 i = 0;
        u32 pri_tested = 0;
        u8 entry = 0;
        u8 pg_entry = 0;
        bool b_found_strict = false;
        u8 num_of_pri = LLFC_DRIVER_TRAFFIC_TYPE_MAX;

        cos_data->data[0].pri_join_mask = cos_data->data[1].pri_join_mask = 0;
        /* If there are both pauseable and non-pauseable priorities,
         * the pauseable priorities go to the first queue and the
         * non-pauseable priorities go to the second queue.
         */
        if (IS_DCBX_PFC_PRI_MIX_PAUSE(bp, pri_join_mask))
                bnx2x_dcbx_separate_pauseable_from_non(bp,
                                cos_data, pg_pri_orginal_spread, ets);
        else {
                /* If two BW-limited PG-s were combined to one queue,
                 * the BW is their sum.
                 *
                 * If there are only pauseable priorities or only non-pauseable,
                 * and there are both BW-limited and non-BW-limited PG-s,
                 * the BW-limited PG/s go to one queue and the non-BW-limited
                 * PG/s go to the second queue.
                 *
                 * If there are only pauseable priorities or only non-pauseable
                 * and all are BW limited, then two priorities go to the first
                 * queue and one priority goes to the second queue.
                 *
                 * We will join this two cases:
                 * if one is BW limited it will go to the second queue
                 * otherwise the last priority will get it
                 */

                cos_data->data[0].pausable = cos_data->data[1].pausable =
                        IS_DCBX_PFC_PRI_ONLY_PAUSE(bp, pri_join_mask);

                for (i = 0 ; i < num_of_pri; i++) {
                        pri_tested = 1 << bp->dcbx_port_params.
                                app.traffic_type_priority[i];
                        pg_entry = (u8)pg_pri_orginal_spread[bp->
                                dcbx_port_params.app.traffic_type_priority[i]];

                        if (pg_entry < DCBX_MAX_NUM_PG_BW_ENTRIES) {
                                entry = 0;

                                if (i == (num_of_pri-1) &&
                                    false == b_found_strict)
                                        /* last entry will be handled separately
                                         * If no priority is strict than last
                                         * entry goes to last queue.
                                         */
                                        entry = 1;
                                cos_data->data[entry].pri_join_mask |=
                                                                pri_tested;
                                bnx2x_dcbx_add_to_cos_bw(bp,
                                        &cos_data->data[entry],
                                        DCBX_PG_BW_GET(ets->pg_bw_tbl,
                                                       pg_entry));
                        } else {
                                b_found_strict = true;
                                cos_data->data[1].pri_join_mask |= pri_tested;
                                /* If we join a group and one is strict
                                 * than the bw rules
                                 */
                                cos_data->data[1].strict =
                                        BNX2X_DCBX_STRICT_COS_HIGHEST;
                        }
                }
        }
}

static void bnx2x_dcbx_2cos_limit_cee_fill_cos_params(struct bnx2x *bp,
                                       struct pg_help_data *help_data,
                                       struct dcbx_ets_feature *ets,
                                       struct cos_help_data *cos_data,
                                       u32 *pg_pri_orginal_spread,
                                       u32 pri_join_mask,
                                       u8 num_of_dif_pri)
{
        /* default E2 settings */
        cos_data->num_of_cos = DCBX_COS_MAX_NUM_E2;

        switch (help_data->num_of_pg) {
        case 1:
                bnx2x_dcbx_2cos_limit_cee_single_pg_to_cos_params(
                                               bp,
                                               help_data,
                                               cos_data,
                                               pri_join_mask,
                                               num_of_dif_pri);
                break;
        case 2:
                bnx2x_dcbx_2cos_limit_cee_two_pg_to_cos_params(
                                            bp,
                                            help_data,
                                            ets,
                                            cos_data,
                                            pg_pri_orginal_spread,
                                            pri_join_mask,
                                            num_of_dif_pri);
                break;

        case 3:
                bnx2x_dcbx_2cos_limit_cee_three_pg_to_cos_params(
                                              bp,
                                              help_data,
                                              ets,
                                              cos_data,
                                              pg_pri_orginal_spread,
                                              pri_join_mask,
                                              num_of_dif_pri);
                break;
        default:
                BNX2X_ERR("Wrong pg_help_data.num_of_pg\n");
                bnx2x_dcbx_ets_disabled_entry_data(bp,
                                                   cos_data, pri_join_mask);
        }
}

static int bnx2x_dcbx_spread_strict_pri(struct bnx2x *bp,
                                        struct cos_help_data *cos_data,
                                        u8 entry,
                                        u8 num_spread_of_entries,
                                        u8 strict_app_pris)
{
        u8 strict_pri = BNX2X_DCBX_STRICT_COS_HIGHEST;
        u8 num_of_app_pri = MAX_PFC_PRIORITIES;
        u8 app_pri_bit = 0;

        while (num_spread_of_entries && num_of_app_pri > 0) {
                app_pri_bit = 1 << (num_of_app_pri - 1);
                if (app_pri_bit & strict_app_pris) {
                        struct cos_entry_help_data *data = &cos_data->
                                                                data[entry];
                        num_spread_of_entries--;
                        if (num_spread_of_entries == 0) {
                                /* last entry needed put all the entries left */
                                data->cos_bw = DCBX_INVALID_COS_BW;
                                data->strict = strict_pri;
                                data->pri_join_mask = strict_app_pris;
                                data->pausable = DCBX_IS_PFC_PRI_SOME_PAUSE(bp,
                                                        data->pri_join_mask);
                        } else {
                                strict_app_pris &= ~app_pri_bit;

                                data->cos_bw = DCBX_INVALID_COS_BW;
                                data->strict = strict_pri;
                                data->pri_join_mask = app_pri_bit;
                                data->pausable = DCBX_IS_PFC_PRI_SOME_PAUSE(bp,
                                                        data->pri_join_mask);
                        }

                        strict_pri =
                            BNX2X_DCBX_STRICT_COS_NEXT_LOWER_PRI(strict_pri);
                        entry++;
                }

                num_of_app_pri--;
        }

        if (num_spread_of_entries) {
                BNX2X_ERR("Didn't succeed to spread strict priorities\n");
                return -EINVAL;
        }

        return 0;
}

static u8 bnx2x_dcbx_cee_fill_strict_pri(struct bnx2x *bp,
                                         struct cos_help_data *cos_data,
                                         u8 entry,
                                         u8 num_spread_of_entries,
                                         u8 strict_app_pris)
{
        if (bnx2x_dcbx_spread_strict_pri(bp, cos_data, entry,
                                         num_spread_of_entries,
                                         strict_app_pris)) {
                struct cos_entry_help_data *data = &cos_data->
                                                    data[entry];
                /* Fill BW entry */
                data->cos_bw = DCBX_INVALID_COS_BW;
                data->strict = BNX2X_DCBX_STRICT_COS_HIGHEST;
                data->pri_join_mask = strict_app_pris;
                data->pausable = DCBX_IS_PFC_PRI_SOME_PAUSE(bp,
                                 data->pri_join_mask);
                return 1;
        }

        return num_spread_of_entries;
}

static void bnx2x_dcbx_cee_fill_cos_params(struct bnx2x *bp,
                                           struct pg_help_data *help_data,
                                           struct dcbx_ets_feature *ets,
                                           struct cos_help_data *cos_data,
                                           u32 pri_join_mask)

{
        u8 need_num_of_entries = 0;
        u8 i = 0;
        u8 entry = 0;

        /*
         * if the number of requested PG-s in CEE is greater than 3
         * then the results are not determined since this is a violation
         * of the standard.
         */
        if (help_data->num_of_pg > DCBX_COS_MAX_NUM_E3B0) {
                if (bnx2x_dcbx_join_pgs(bp, ets, help_data,
                                        DCBX_COS_MAX_NUM_E3B0)) {
                        BNX2X_ERR("Unable to reduce the number of PGs - we will disables ETS\n");
                        bnx2x_dcbx_ets_disabled_entry_data(bp, cos_data,
                                                           pri_join_mask);
                        return;
                }
        }

        for (i = 0 ; i < help_data->num_of_pg; i++) {
                struct pg_entry_help_data *pg =  &help_data->data[i];
                if (pg->pg < DCBX_MAX_NUM_PG_BW_ENTRIES) {
                        struct cos_entry_help_data *data = &cos_data->
                                                            data[entry];
                        /* Fill BW entry */
                        data->cos_bw = DCBX_PG_BW_GET(ets->pg_bw_tbl, pg->pg);
                        data->strict = BNX2X_DCBX_STRICT_INVALID;
                        data->pri_join_mask = pg->pg_priority;
                        data->pausable = DCBX_IS_PFC_PRI_SOME_PAUSE(bp,
                                                data->pri_join_mask);

                        entry++;
                } else {
                        need_num_of_entries =  min_t(u8,
                                (u8)pg->num_of_dif_pri,
                                (u8)DCBX_COS_MAX_NUM_E3B0 -
                                                 help_data->num_of_pg + 1);
                        /*
                         * If there are still VOQ-s which have no associated PG,
                         * then associate these VOQ-s to PG15. These PG-s will
                         * be used for SP between priorities on PG15.
                         */
                        entry += bnx2x_dcbx_cee_fill_strict_pri(bp, cos_data,
                                entry, need_num_of_entries, pg->pg_priority);
                }
        }

        /* the entry will represent the number of COSes used */
        cos_data->num_of_cos = entry;
}
static void bnx2x_dcbx_fill_cos_params(struct bnx2x *bp,
                                       struct pg_help_data *help_data,
                                       struct dcbx_ets_feature *ets,
                                       u32 *pg_pri_orginal_spread)
{
        struct cos_help_data         cos_data;
        u8                    i                           = 0;
        u32                   pri_join_mask               = 0;
        u8                    num_of_dif_pri              = 0;

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

        /* Validate the pg value */
        for (i = 0; i < help_data->num_of_pg ; i++) {
                if (DCBX_STRICT_PRIORITY != help_data->data[i].pg &&
                    DCBX_MAX_NUM_PG_BW_ENTRIES <= help_data->data[i].pg)
                        BNX2X_ERR("Invalid pg[%d] data %x\n", i,
                                  help_data->data[i].pg);
                pri_join_mask   |=  help_data->data[i].pg_priority;
                num_of_dif_pri  += help_data->data[i].num_of_dif_pri;
        }

        /* defaults */
        cos_data.num_of_cos = 1;
        for (i = 0; i < ARRAY_SIZE(cos_data.data); i++) {
                cos_data.data[i].pri_join_mask = 0;
                cos_data.data[i].pausable = false;
                cos_data.data[i].strict = BNX2X_DCBX_STRICT_INVALID;
                cos_data.data[i].cos_bw = DCBX_INVALID_COS_BW;
        }

        if (CHIP_IS_E3B0(bp))
                bnx2x_dcbx_cee_fill_cos_params(bp, help_data, ets,
                                               &cos_data, pri_join_mask);
        else /* E2 + E3A0 */
                bnx2x_dcbx_2cos_limit_cee_fill_cos_params(bp,
                                                          help_data, ets,
                                                          &cos_data,
                                                          pg_pri_orginal_spread,
                                                          pri_join_mask,
                                                          num_of_dif_pri);

        for (i = 0; i < cos_data.num_of_cos ; i++) {
                struct bnx2x_dcbx_cos_params *p =
                        &bp->dcbx_port_params.ets.cos_params[i];

                p->strict = cos_data.data[i].strict;
                p->bw_tbl = cos_data.data[i].cos_bw;
                p->pri_bitmask = cos_data.data[i].pri_join_mask;
                p->pauseable = cos_data.data[i].pausable;

                /* sanity */
                if (p->bw_tbl != DCBX_INVALID_COS_BW ||
                    p->strict != BNX2X_DCBX_STRICT_INVALID) {
                        if (p->pri_bitmask == 0)
                                BNX2X_ERR("Invalid pri_bitmask for %d\n", i);

                        if (CHIP_IS_E2(bp) || CHIP_IS_E3A0(bp)) {

                                if (p->pauseable &&
                                    DCBX_PFC_PRI_GET_NON_PAUSE(bp,
                                                p->pri_bitmask) != 0)
                                        BNX2X_ERR("Inconsistent config for pausable COS %d\n",
                                                  i);

                                if (!p->pauseable &&
                                    DCBX_PFC_PRI_GET_PAUSE(bp,
                                                p->pri_bitmask) != 0)
                                        BNX2X_ERR("Inconsistent config for nonpausable COS %d\n",
                                                  i);
                        }
                }

                if (p->pauseable)
                        DP(BNX2X_MSG_DCB, "COS %d PAUSABLE prijoinmask 0x%x\n",
                                  i, cos_data.data[i].pri_join_mask);
                else
                        DP(BNX2X_MSG_DCB,
                           "COS %d NONPAUSABLE prijoinmask 0x%x\n",
                           i, cos_data.data[i].pri_join_mask);
        }

        bp->dcbx_port_params.ets.num_of_cos = cos_data.num_of_cos ;
}

static void bnx2x_dcbx_get_ets_pri_pg_tbl(struct bnx2x *bp,
                                u32 *set_configuration_ets_pg,
                                u32 *pri_pg_tbl)
{
        int i;

        for (i = 0; i < DCBX_MAX_NUM_PRI_PG_ENTRIES; i++) {
                set_configuration_ets_pg[i] = DCBX_PRI_PG_GET(pri_pg_tbl, i);

                DP(BNX2X_MSG_DCB, "set_configuration_ets_pg[%d] = 0x%x\n",
                   i, set_configuration_ets_pg[i]);
        }
}

static void bnx2x_dcbx_fw_struct(struct bnx2x *bp,
                                 struct bnx2x_func_tx_start_params *pfc_fw_cfg)
{
        u16 pri_bit = 0;
        u8 cos = 0, pri = 0;
        struct priority_cos *tt2cos;
        u32 *ttp = bp->dcbx_port_params.app.traffic_type_priority;
        int mfw_configured = SHMEM2_HAS(bp, drv_flags) &&
                             GET_FLAGS(SHMEM2_RD(bp, drv_flags),
                                       1 << DRV_FLAGS_DCB_MFW_CONFIGURED);

        memset(pfc_fw_cfg, 0, sizeof(*pfc_fw_cfg));

        /* to disable DCB - the structure must be zeroed */
        if ((bp->dcbx_error & DCBX_REMOTE_MIB_ERROR) && !mfw_configured)
                return;

        /*shortcut*/
        tt2cos = pfc_fw_cfg->traffic_type_to_priority_cos;

        /* Fw version should be incremented each update */
        pfc_fw_cfg->dcb_version = ++bp->dcb_version;
        pfc_fw_cfg->dcb_enabled = 1;

        /* Fill priority parameters */
        for (pri = 0; pri < LLFC_DRIVER_TRAFFIC_TYPE_MAX; pri++) {
                tt2cos[pri].priority = ttp[pri];
                pri_bit = 1 << tt2cos[pri].priority;

                /* Fill COS parameters based on COS calculated to
                 * make it more general for future use */
                for (cos = 0; cos < bp->dcbx_port_params.ets.num_of_cos; cos++)
                        if (bp->dcbx_port_params.ets.cos_params[cos].
                                                pri_bitmask & pri_bit)
                                        tt2cos[pri].cos = cos;
        }

        /* we never want the FW to add a 0 vlan tag */
        pfc_fw_cfg->dont_add_pri_0_en = 1;

        bnx2x_dcbx_print_cos_params(bp, pfc_fw_cfg);
}

void bnx2x_dcbx_pmf_update(struct bnx2x *bp)
{
        /* if we need to synchronize DCBX result from prev PMF
         * read it from shmem and update bp and netdev accordingly
         */
        if (SHMEM2_HAS(bp, drv_flags) &&
           GET_FLAGS(SHMEM2_RD(bp, drv_flags), 1 << DRV_FLAGS_DCB_CONFIGURED)) {
                /* Read neg results if dcbx is in the FW */
                if (bnx2x_dcbx_read_shmem_neg_results(bp))
                        return;

                bnx2x_dump_dcbx_drv_param(bp, &bp->dcbx_local_feat,
                                          bp->dcbx_error);
                bnx2x_get_dcbx_drv_param(bp, &bp->dcbx_local_feat,
                                         bp->dcbx_error);
#ifdef BCM_DCBNL
                /*
                 * Add new app tlvs to dcbnl
                 */
                bnx2x_dcbnl_update_applist(bp, false);
                /*
                 * Send a notification for the new negotiated parameters
                 */
                dcbnl_cee_notify(bp->dev, RTM_GETDCB, DCB_CMD_CEE_GET, 0, 0);
#endif
                /*
                 * reconfigure the netdevice with the results of the new
                 * dcbx negotiation.
                 */
                bnx2x_dcbx_update_tc_mapping(bp);
        }
}

/* DCB netlink */
#ifdef BCM_DCBNL

#define BNX2X_DCBX_CAPS         (DCB_CAP_DCBX_LLD_MANAGED | \
                                DCB_CAP_DCBX_VER_CEE | DCB_CAP_DCBX_STATIC)

static inline bool bnx2x_dcbnl_set_valid(struct bnx2x *bp)
{
        /* validate dcbnl call that may change HW state:
         * DCB is on and DCBX mode was SUCCESSFULLY set by the user.
         */
        return bp->dcb_state && bp->dcbx_mode_uset;
}

static u8 bnx2x_dcbnl_get_state(struct net_device *netdev)
{
        struct bnx2x *bp = netdev_priv(netdev);
        DP(BNX2X_MSG_DCB, "state = %d\n", bp->dcb_state);
        return bp->dcb_state;
}

static u8 bnx2x_dcbnl_set_state(struct net_device *netdev, u8 state)
{
        struct bnx2x *bp = netdev_priv(netdev);
        DP(BNX2X_MSG_DCB, "state = %s\n", state ? "on" : "off");

        /* Fail to set state to "enabled" if dcbx is disabled in nvram */
        if (state && ((bp->dcbx_enabled == BNX2X_DCBX_ENABLED_OFF) ||
                      (bp->dcbx_enabled == BNX2X_DCBX_ENABLED_INVALID))) {
                DP(BNX2X_MSG_DCB, "Can not set dcbx to enabled while it is disabled in nvm\n");
                return 1;
        }

        bnx2x_dcbx_set_state(bp, (state ? true : false), bp->dcbx_enabled);
        return 0;
}

static void bnx2x_dcbnl_get_perm_hw_addr(struct net_device *netdev,
                                         u8 *perm_addr)
{
        struct bnx2x *bp = netdev_priv(netdev);
        DP(BNX2X_MSG_DCB, "GET-PERM-ADDR\n");

        /* first the HW mac address */
        memcpy(perm_addr, netdev->dev_addr, netdev->addr_len);

        if (CNIC_LOADED(bp))
                /* second SAN address */
                memcpy(perm_addr+netdev->addr_len, bp->fip_mac,
                       netdev->addr_len);
}

static void bnx2x_dcbnl_set_pg_tccfg_tx(struct net_device *netdev, int prio,
                                        u8 prio_type, u8 pgid, u8 bw_pct,
                                        u8 up_map)
{
        struct bnx2x *bp = netdev_priv(netdev);

        DP(BNX2X_MSG_DCB, "prio[%d] = %d\n", prio, pgid);
        if (!bnx2x_dcbnl_set_valid(bp) || prio >= DCBX_MAX_NUM_PRI_PG_ENTRIES)
                return;

        /**
         * bw_pct ignored -     band-width percentage devision between user
         *                      priorities within the same group is not
         *                      standard and hence not supported
         *
         * prio_type ignored -  priority levels within the same group are not
         *                      standard and hence are not supported. According
         *                      to the standard pgid 15 is dedicated to strict
         *                      priority traffic (on the port level).
         *
         * up_map ignored
         */

        bp->dcbx_config_params.admin_configuration_ets_pg[prio] = pgid;
        bp->dcbx_config_params.admin_ets_configuration_tx_enable = 1;
}

static void bnx2x_dcbnl_set_pg_bwgcfg_tx(struct net_device *netdev,
                                         int pgid, u8 bw_pct)
{
        struct bnx2x *bp = netdev_priv(netdev);
        DP(BNX2X_MSG_DCB, "pgid[%d] = %d\n", pgid, bw_pct);

        if (!bnx2x_dcbnl_set_valid(bp) || pgid >= DCBX_MAX_NUM_PG_BW_ENTRIES)
                return;

        bp->dcbx_config_params.admin_configuration_bw_precentage[pgid] = bw_pct;
        bp->dcbx_config_params.admin_ets_configuration_tx_enable = 1;
}

static void bnx2x_dcbnl_set_pg_tccfg_rx(struct net_device *netdev, int prio,
                                        u8 prio_type, u8 pgid, u8 bw_pct,
                                        u8 up_map)
{
        struct bnx2x *bp = netdev_priv(netdev);
        DP(BNX2X_MSG_DCB, "Nothing to set; No RX support\n");

}

static void bnx2x_dcbnl_set_pg_bwgcfg_rx(struct net_device *netdev,
                                         int pgid, u8 bw_pct)
{
        struct bnx2x *bp = netdev_priv(netdev);
        DP(BNX2X_MSG_DCB, "Nothing to set; No RX support\n");
}

static void bnx2x_dcbnl_get_pg_tccfg_tx(struct net_device *netdev, int prio,
                                        u8 *prio_type, u8 *pgid, u8 *bw_pct,
                                        u8 *up_map)
{
        struct bnx2x *bp = netdev_priv(netdev);
        DP(BNX2X_MSG_DCB, "prio = %d\n", prio);

        /**
         * bw_pct ignored -     band-width percentage devision between user
         *                      priorities within the same group is not
         *                      standard and hence not supported
         *
         * prio_type ignored -  priority levels within the same group are not
         *                      standard and hence are not supported. According
         *                      to the standard pgid 15 is dedicated to strict
         *                      priority traffic (on the port level).
         *
         * up_map ignored
         */
        *up_map = *bw_pct = *prio_type = *pgid = 0;

        if (!bp->dcb_state || prio >= DCBX_MAX_NUM_PRI_PG_ENTRIES)
                return;

        *pgid = DCBX_PRI_PG_GET(bp->dcbx_local_feat.ets.pri_pg_tbl, prio);
}

static void bnx2x_dcbnl_get_pg_bwgcfg_tx(struct net_device *netdev,
                                         int pgid, u8 *bw_pct)
{
        struct bnx2x *bp = netdev_priv(netdev);
        DP(BNX2X_MSG_DCB, "pgid = %d\n", pgid);

        *bw_pct = 0;

        if (!bp->dcb_state || pgid >= DCBX_MAX_NUM_PG_BW_ENTRIES)
                return;

        *bw_pct = DCBX_PG_BW_GET(bp->dcbx_local_feat.ets.pg_bw_tbl, pgid);
}

static void bnx2x_dcbnl_get_pg_tccfg_rx(struct net_device *netdev, int prio,
                                        u8 *prio_type, u8 *pgid, u8 *bw_pct,
                                        u8 *up_map)
{
        struct bnx2x *bp = netdev_priv(netdev);
        DP(BNX2X_MSG_DCB, "Nothing to get; No RX support\n");

        *prio_type = *pgid = *bw_pct = *up_map = 0;
}

static void bnx2x_dcbnl_get_pg_bwgcfg_rx(struct net_device *netdev,
                                         int pgid, u8 *bw_pct)
{
        struct bnx2x *bp = netdev_priv(netdev);
        DP(BNX2X_MSG_DCB, "Nothing to get; No RX support\n");

        *bw_pct = 0;
}

static void bnx2x_dcbnl_set_pfc_cfg(struct net_device *netdev, int prio,
                                    u8 setting)
{
        struct bnx2x *bp = netdev_priv(netdev);
        DP(BNX2X_MSG_DCB, "prio[%d] = %d\n", prio, setting);

        if (!bnx2x_dcbnl_set_valid(bp) || prio >= MAX_PFC_PRIORITIES)
                return;

        if (setting) {
                bp->dcbx_config_params.admin_pfc_bitmap |= (1 << prio);
                bp->dcbx_config_params.admin_pfc_tx_enable = 1;
        } else {
                bp->dcbx_config_params.admin_pfc_bitmap &= ~(1 << prio);
        }
}

static void bnx2x_dcbnl_get_pfc_cfg(struct net_device *netdev, int prio,
                                    u8 *setting)
{
        struct bnx2x *bp = netdev_priv(netdev);
        DP(BNX2X_MSG_DCB, "prio = %d\n", prio);

        *setting = 0;

        if (!bp->dcb_state || prio >= MAX_PFC_PRIORITIES)
                return;

        *setting = (bp->dcbx_local_feat.pfc.pri_en_bitmap >> prio) & 0x1;
}

static u8 bnx2x_dcbnl_set_all(struct net_device *netdev)
{
        struct bnx2x *bp = netdev_priv(netdev);
        int rc = 0;

        DP(BNX2X_MSG_DCB, "SET-ALL\n");

        if (!bnx2x_dcbnl_set_valid(bp))
                return 1;

        if (bp->recovery_state != BNX2X_RECOVERY_DONE) {
                netdev_err(bp->dev,
                           "Handling parity error recovery. Try again later\n");
                return 1;
        }
        if (netif_running(bp->dev)) {
                bnx2x_update_drv_flags(bp,
                                       1 << DRV_FLAGS_DCB_MFW_CONFIGURED,
                                       1);
                bnx2x_dcbx_init(bp, true);
        }
        DP(BNX2X_MSG_DCB, "set_dcbx_params done (%d)\n", rc);
        if (rc)
                return 1;

        return 0;
}

static u8 bnx2x_dcbnl_get_cap(struct net_device *netdev, int capid, u8 *cap)
{
        struct bnx2x *bp = netdev_priv(netdev);
        u8 rval = 0;

        if (bp->dcb_state) {
                switch (capid) {
                case DCB_CAP_ATTR_PG:
                        *cap = true;
                        break;
                case DCB_CAP_ATTR_PFC:
                        *cap = true;
                        break;
                case DCB_CAP_ATTR_UP2TC:
                        *cap = false;
                        break;
                case DCB_CAP_ATTR_PG_TCS:
                        *cap = 0x80;    /* 8 priorities for PGs */
                        break;
                case DCB_CAP_ATTR_PFC_TCS:
                        *cap = 0x80;    /* 8 priorities for PFC */
                        break;
                case DCB_CAP_ATTR_GSP:
                        *cap = true;
                        break;
                case DCB_CAP_ATTR_BCN:
                        *cap = false;
                        break;
                case DCB_CAP_ATTR_DCBX:
                        *cap = BNX2X_DCBX_CAPS;
                        break;
                default:
                        BNX2X_ERR("Non valid capability ID\n");
                        rval = 1;
                        break;
                }
        } else {
                DP(BNX2X_MSG_DCB, "DCB disabled\n");
                rval = 1;
        }

        DP(BNX2X_MSG_DCB, "capid %d:%x\n", capid, *cap);
        return rval;
}

static int bnx2x_dcbnl_get_numtcs(struct net_device *netdev, int tcid, u8 *num)
{
        struct bnx2x *bp = netdev_priv(netdev);
        u8 rval = 0;

        DP(BNX2X_MSG_DCB, "tcid %d\n", tcid);

        if (bp->dcb_state) {
                switch (tcid) {
                case DCB_NUMTCS_ATTR_PG:
                        *num = CHIP_IS_E3B0(bp) ? DCBX_COS_MAX_NUM_E3B0 :
                                                  DCBX_COS_MAX_NUM_E2;
                        break;
                case DCB_NUMTCS_ATTR_PFC:
                        *num = CHIP_IS_E3B0(bp) ? DCBX_COS_MAX_NUM_E3B0 :
                                                  DCBX_COS_MAX_NUM_E2;
                        break;
                default:
                        BNX2X_ERR("Non valid TC-ID\n");
                        rval = 1;
                        break;
                }
        } else {
                DP(BNX2X_MSG_DCB, "DCB disabled\n");
                rval = 1;
        }

        return rval;
}

static int bnx2x_dcbnl_set_numtcs(struct net_device *netdev, int tcid, u8 num)
{
        struct bnx2x *bp = netdev_priv(netdev);
        DP(BNX2X_MSG_DCB, "num tcs = %d; Not supported\n", num);
        return -EINVAL;
}

static u8 bnx2x_dcbnl_get_pfc_state(struct net_device *netdev)
{
        struct bnx2x *bp = netdev_priv(netdev);
        DP(BNX2X_MSG_DCB, "state = %d\n", bp->dcbx_local_feat.pfc.enabled);

        if (!bp->dcb_state)
                return 0;

        return bp->dcbx_local_feat.pfc.enabled;
}

static void bnx2x_dcbnl_set_pfc_state(struct net_device *netdev, u8 state)
{
        struct bnx2x *bp = netdev_priv(netdev);
        DP(BNX2X_MSG_DCB, "state = %s\n", state ? "on" : "off");

        if (!bnx2x_dcbnl_set_valid(bp))
                return;

        bp->dcbx_config_params.admin_pfc_tx_enable =
        bp->dcbx_config_params.admin_pfc_enable = (state ? 1 : 0);
}

static void bnx2x_admin_app_set_ent(
        struct bnx2x_admin_priority_app_table *app_ent,
        u8 idtype, u16 idval, u8 up)
{
        app_ent->valid = 1;

        switch (idtype) {
        case DCB_APP_IDTYPE_ETHTYPE:
                app_ent->traffic_type = TRAFFIC_TYPE_ETH;
                break;
        case DCB_APP_IDTYPE_PORTNUM:
                app_ent->traffic_type = TRAFFIC_TYPE_PORT;
                break;
        default:
                break; /* never gets here */
        }
        app_ent->app_id = idval;
        app_ent->priority = up;
}

static bool bnx2x_admin_app_is_equal(
        struct bnx2x_admin_priority_app_table *app_ent,
        u8 idtype, u16 idval)
{
        if (!app_ent->valid)
                return false;

        switch (idtype) {
        case DCB_APP_IDTYPE_ETHTYPE:
                if (app_ent->traffic_type != TRAFFIC_TYPE_ETH)
                        return false;
                break;
        case DCB_APP_IDTYPE_PORTNUM:
                if (app_ent->traffic_type != TRAFFIC_TYPE_PORT)
                        return false;
                break;
        default:
                return false;
        }
        if (app_ent->app_id != idval)
                return false;

        return true;
}

static int bnx2x_set_admin_app_up(struct bnx2x *bp, u8 idtype, u16 idval, u8 up)
{
        int i, ff;

        /* iterate over the app entries looking for idtype and idval */
        for (i = 0, ff = -1; i < DCBX_CONFIG_MAX_APP_PROTOCOL; i++) {
                struct bnx2x_admin_priority_app_table *app_ent =
                        &bp->dcbx_config_params.admin_priority_app_table[i];
                if (bnx2x_admin_app_is_equal(app_ent, idtype, idval))
                        break;

                if (ff < 0 && !app_ent->valid)
                        ff = i;
        }
        if (i < DCBX_CONFIG_MAX_APP_PROTOCOL)
                /* if found overwrite up */
                bp->dcbx_config_params.
                        admin_priority_app_table[i].priority = up;
        else if (ff >= 0)
                /* not found use first-free */
                bnx2x_admin_app_set_ent(
                        &bp->dcbx_config_params.admin_priority_app_table[ff],
                        idtype, idval, up);
        else {
                /* app table is full */
                BNX2X_ERR("Application table is too large\n");
                return -EBUSY;
        }

        /* up configured, if not 0 make sure feature is enabled */
        if (up)
                bp->dcbx_config_params.admin_application_priority_tx_enable = 1;

        return 0;
}

static u8 bnx2x_dcbnl_set_app_up(struct net_device *netdev, u8 idtype,
                                 u16 idval, u8 up)
{
        struct bnx2x *bp = netdev_priv(netdev);

        DP(BNX2X_MSG_DCB, "app_type %d, app_id %x, prio bitmap %d\n",
           idtype, idval, up);

        if (!bnx2x_dcbnl_set_valid(bp)) {
                DP(BNX2X_MSG_DCB, "dcbnl call not valid\n");
                return -EINVAL;
        }

        /* verify idtype */
        switch (idtype) {
        case DCB_APP_IDTYPE_ETHTYPE:
        case DCB_APP_IDTYPE_PORTNUM:
                break;
        default:
                DP(BNX2X_MSG_DCB, "Wrong ID type\n");
                return -EINVAL;
        }
        return bnx2x_set_admin_app_up(bp, idtype, idval, up);
}

static u8 bnx2x_dcbnl_get_dcbx(struct net_device *netdev)
{
        struct bnx2x *bp = netdev_priv(netdev);
        u8 state;

        state = DCB_CAP_DCBX_LLD_MANAGED | DCB_CAP_DCBX_VER_CEE;

        if (bp->dcbx_enabled == BNX2X_DCBX_ENABLED_ON_NEG_OFF)
                state |= DCB_CAP_DCBX_STATIC;

        return state;
}

static u8 bnx2x_dcbnl_set_dcbx(struct net_device *netdev, u8 state)
{
        struct bnx2x *bp = netdev_priv(netdev);
        DP(BNX2X_MSG_DCB, "state = %02x\n", state);

        /* set dcbx mode */

        if ((state & BNX2X_DCBX_CAPS) != state) {
                BNX2X_ERR("Requested DCBX mode %x is beyond advertised capabilities\n",
                          state);
                return 1;
        }

        if (bp->dcb_state != BNX2X_DCB_STATE_ON) {
                BNX2X_ERR("DCB turned off, DCBX configuration is invalid\n");
                return 1;
        }

        if (state & DCB_CAP_DCBX_STATIC)
                bp->dcbx_enabled = BNX2X_DCBX_ENABLED_ON_NEG_OFF;
        else
                bp->dcbx_enabled = BNX2X_DCBX_ENABLED_ON_NEG_ON;

        bp->dcbx_mode_uset = true;
        return 0;
}

static u8 bnx2x_dcbnl_get_featcfg(struct net_device *netdev, int featid,
                                  u8 *flags)
{
        struct bnx2x *bp = netdev_priv(netdev);
        u8 rval = 0;

        DP(BNX2X_MSG_DCB, "featid %d\n", featid);

        if (bp->dcb_state) {
                *flags = 0;
                switch (featid) {
                case DCB_FEATCFG_ATTR_PG:
                        if (bp->dcbx_local_feat.ets.enabled)
                                *flags |= DCB_FEATCFG_ENABLE;
                        if (bp->dcbx_error & (DCBX_LOCAL_ETS_ERROR |
                                              DCBX_REMOTE_MIB_ERROR))
                                *flags |= DCB_FEATCFG_ERROR;
                        break;
                case DCB_FEATCFG_ATTR_PFC:
                        if (bp->dcbx_local_feat.pfc.enabled)
                                *flags |= DCB_FEATCFG_ENABLE;
                        if (bp->dcbx_error & (DCBX_LOCAL_PFC_ERROR |
                                              DCBX_LOCAL_PFC_MISMATCH |
                                              DCBX_REMOTE_MIB_ERROR))
                                *flags |= DCB_FEATCFG_ERROR;
                        break;
                case DCB_FEATCFG_ATTR_APP:
                        if (bp->dcbx_local_feat.app.enabled)
                                *flags |= DCB_FEATCFG_ENABLE;
                        if (bp->dcbx_error & (DCBX_LOCAL_APP_ERROR |
                                              DCBX_LOCAL_APP_MISMATCH |
                                              DCBX_REMOTE_MIB_ERROR))
                                *flags |= DCB_FEATCFG_ERROR;
                        break;
                default:
                        BNX2X_ERR("Non valid feature-ID\n");
                        rval = 1;
                        break;
                }
        } else {
                DP(BNX2X_MSG_DCB, "DCB disabled\n");
                rval = 1;
        }

        return rval;
}

static u8 bnx2x_dcbnl_set_featcfg(struct net_device *netdev, int featid,
                                  u8 flags)
{
        struct bnx2x *bp = netdev_priv(netdev);
        u8 rval = 0;

        DP(BNX2X_MSG_DCB, "featid = %d flags = %02x\n", featid, flags);

        /* ignore the 'advertise' flag */
        if (bnx2x_dcbnl_set_valid(bp)) {
                switch (featid) {
                case DCB_FEATCFG_ATTR_PG:
                        bp->dcbx_config_params.admin_ets_enable =
                                flags & DCB_FEATCFG_ENABLE ? 1 : 0;
                        bp->dcbx_config_params.admin_ets_willing =
                                flags & DCB_FEATCFG_WILLING ? 1 : 0;
                        break;
                case DCB_FEATCFG_ATTR_PFC:
                        bp->dcbx_config_params.admin_pfc_enable =
                                flags & DCB_FEATCFG_ENABLE ? 1 : 0;
                        bp->dcbx_config_params.admin_pfc_willing =
                                flags & DCB_FEATCFG_WILLING ? 1 : 0;
                        break;
                case DCB_FEATCFG_ATTR_APP:
                        /* ignore enable, always enabled */
                        bp->dcbx_config_params.admin_app_priority_willing =
                                flags & DCB_FEATCFG_WILLING ? 1 : 0;
                        break;
                default:
                        BNX2X_ERR("Non valid feature-ID\n");
                        rval = 1;
                        break;
                }
        } else {
                DP(BNX2X_MSG_DCB, "dcbnl call not valid\n");
                rval = 1;
        }

        return rval;
}

static int bnx2x_peer_appinfo(struct net_device *netdev,
                              struct dcb_peer_app_info *info, u16* app_count)
{
        int i;
        struct bnx2x *bp = netdev_priv(netdev);

        DP(BNX2X_MSG_DCB, "APP-INFO\n");

        info->willing = (bp->dcbx_remote_flags & DCBX_APP_REM_WILLING) ?: 0;
        info->error = (bp->dcbx_remote_flags & DCBX_APP_RX_ERROR) ?: 0;
        *app_count = 0;

        for (i = 0; i < DCBX_MAX_APP_PROTOCOL; i++)
                if (bp->dcbx_remote_feat.app.app_pri_tbl[i].appBitfield &
                    DCBX_APP_ENTRY_VALID)
                        (*app_count)++;
        return 0;
}

static int bnx2x_peer_apptable(struct net_device *netdev,
                               struct dcb_app *table)
{
        int i, j;
        struct bnx2x *bp = netdev_priv(netdev);

        DP(BNX2X_MSG_DCB, "APP-TABLE\n");

        for (i = 0, j = 0; i < DCBX_MAX_APP_PROTOCOL; i++) {
                struct dcbx_app_priority_entry *ent =
                        &bp->dcbx_remote_feat.app.app_pri_tbl[i];

                if (ent->appBitfield & DCBX_APP_ENTRY_VALID) {
                        table[j].selector = bnx2x_dcbx_dcbnl_app_idtype(ent);
                        table[j].priority = bnx2x_dcbx_dcbnl_app_up(ent);
                        table[j++].protocol = ent->app_id;
                }
        }
        return 0;
}

static int bnx2x_cee_peer_getpg(struct net_device *netdev, struct cee_pg *pg)
{
        int i;
        struct bnx2x *bp = netdev_priv(netdev);

        pg->willing = (bp->dcbx_remote_flags & DCBX_ETS_REM_WILLING) ?: 0;

        for (i = 0; i < CEE_DCBX_MAX_PGS; i++) {
                pg->pg_bw[i] =
                        DCBX_PG_BW_GET(bp->dcbx_remote_feat.ets.pg_bw_tbl, i);
                pg->prio_pg[i] =
                        DCBX_PRI_PG_GET(bp->dcbx_remote_feat.ets.pri_pg_tbl, i);
        }
        return 0;
}

static int bnx2x_cee_peer_getpfc(struct net_device *netdev,
                                 struct cee_pfc *pfc)
{
        struct bnx2x *bp = netdev_priv(netdev);
        pfc->tcs_supported = bp->dcbx_remote_feat.pfc.pfc_caps;
        pfc->pfc_en = bp->dcbx_remote_feat.pfc.pri_en_bitmap;
        return 0;
}

const struct dcbnl_rtnl_ops bnx2x_dcbnl_ops = {
        .getstate               = bnx2x_dcbnl_get_state,
        .setstate               = bnx2x_dcbnl_set_state,
        .getpermhwaddr          = bnx2x_dcbnl_get_perm_hw_addr,
        .setpgtccfgtx           = bnx2x_dcbnl_set_pg_tccfg_tx,
        .setpgbwgcfgtx          = bnx2x_dcbnl_set_pg_bwgcfg_tx,
        .setpgtccfgrx           = bnx2x_dcbnl_set_pg_tccfg_rx,
        .setpgbwgcfgrx          = bnx2x_dcbnl_set_pg_bwgcfg_rx,
        .getpgtccfgtx           = bnx2x_dcbnl_get_pg_tccfg_tx,
        .getpgbwgcfgtx          = bnx2x_dcbnl_get_pg_bwgcfg_tx,
        .getpgtccfgrx           = bnx2x_dcbnl_get_pg_tccfg_rx,
        .getpgbwgcfgrx          = bnx2x_dcbnl_get_pg_bwgcfg_rx,
        .setpfccfg              = bnx2x_dcbnl_set_pfc_cfg,
        .getpfccfg              = bnx2x_dcbnl_get_pfc_cfg,
        .setall                 = bnx2x_dcbnl_set_all,
        .getcap                 = bnx2x_dcbnl_get_cap,
        .getnumtcs              = bnx2x_dcbnl_get_numtcs,
        .setnumtcs              = bnx2x_dcbnl_set_numtcs,
        .getpfcstate            = bnx2x_dcbnl_get_pfc_state,
        .setpfcstate            = bnx2x_dcbnl_set_pfc_state,
        .setapp                 = bnx2x_dcbnl_set_app_up,
        .getdcbx                = bnx2x_dcbnl_get_dcbx,
        .setdcbx                = bnx2x_dcbnl_set_dcbx,
        .getfeatcfg             = bnx2x_dcbnl_get_featcfg,
        .setfeatcfg             = bnx2x_dcbnl_set_featcfg,
        .peer_getappinfo        = bnx2x_peer_appinfo,
        .peer_getapptable       = bnx2x_peer_apptable,
        .cee_peer_getpg         = bnx2x_cee_peer_getpg,
        .cee_peer_getpfc        = bnx2x_cee_peer_getpfc,
};

#endif /* BCM_DCBNL */