// SPDX-License-Identifier: (GPL-2.0-only OR BSD-3-Clause)
/* QLogic qed NIC Driver
 * Copyright (c) 2015-2017  QLogic Corporation
 * Copyright (c) 2019-2020 Marvell International Ltd.
 */

#include <linux/types.h>
#include <asm/byteorder.h>
#include <linux/bitops.h>
#include <linux/dcbnl.h>
#include <linux/errno.h>
#include <linux/kernel.h>
#include <linux/slab.h>
#include <linux/string.h>
#include "qed.h"
#include "qed_cxt.h"
#include "qed_dcbx.h"
#include "qed_hsi.h"
#include "qed_sp.h"
#include "qed_sriov.h"
#include "qed_rdma.h"
#ifdef CONFIG_DCB
#include <linux/qed/qed_eth_if.h>
#endif

#define QED_DCBX_MAX_MIB_READ_TRY       (100)
#define QED_ETH_TYPE_DEFAULT            (0)
#define QED_ETH_TYPE_ROCE               (0x8915)
#define QED_UDP_PORT_TYPE_ROCE_V2       (0x12B7)
#define QED_ETH_TYPE_FCOE               (0x8906)
#define QED_TCP_PORT_ISCSI              (0xCBC)

#define QED_DCBX_INVALID_PRIORITY       0xFF

/* Get Traffic Class from priority traffic class table, 4 bits represent
 * the traffic class corresponding to the priority.
 */
#define QED_DCBX_PRIO2TC(prio_tc_tbl, prio) \
        ((u32)(prio_tc_tbl >> ((7 - prio) * 4)) & 0x7)

static const struct qed_dcbx_app_metadata qed_dcbx_app_update[] = {
        {DCBX_PROTOCOL_ISCSI, "ISCSI", QED_PCI_ISCSI},
        {DCBX_PROTOCOL_FCOE, "FCOE", QED_PCI_FCOE},
        {DCBX_PROTOCOL_ROCE, "ROCE", QED_PCI_ETH_ROCE},
        {DCBX_PROTOCOL_ROCE_V2, "ROCE_V2", QED_PCI_ETH_ROCE},
        {DCBX_PROTOCOL_ETH, "ETH", QED_PCI_ETH},
};

static bool qed_dcbx_app_ethtype(u32 app_info_bitmap)
{
        return !!(QED_MFW_GET_FIELD(app_info_bitmap, DCBX_APP_SF) ==
                  DCBX_APP_SF_ETHTYPE);
}

static bool qed_dcbx_ieee_app_ethtype(u32 app_info_bitmap)
{
        u8 mfw_val = QED_MFW_GET_FIELD(app_info_bitmap, DCBX_APP_SF_IEEE);

        /* Old MFW */
        if (mfw_val == DCBX_APP_SF_IEEE_RESERVED)
                return qed_dcbx_app_ethtype(app_info_bitmap);

        return !!(mfw_val == DCBX_APP_SF_IEEE_ETHTYPE);
}

static bool qed_dcbx_app_port(u32 app_info_bitmap)
{
        return !!(QED_MFW_GET_FIELD(app_info_bitmap, DCBX_APP_SF) ==
                  DCBX_APP_SF_PORT);
}

static bool qed_dcbx_ieee_app_port(u32 app_info_bitmap, u8 type)
{
        u8 mfw_val = QED_MFW_GET_FIELD(app_info_bitmap, DCBX_APP_SF_IEEE);

        /* Old MFW */
        if (mfw_val == DCBX_APP_SF_IEEE_RESERVED)
                return qed_dcbx_app_port(app_info_bitmap);

        return !!(mfw_val == type || mfw_val == DCBX_APP_SF_IEEE_TCP_UDP_PORT);
}

static bool qed_dcbx_default_tlv(u32 app_info_bitmap, u16 proto_id, bool ieee)
{
        bool ethtype;

        if (ieee)
                ethtype = qed_dcbx_ieee_app_ethtype(app_info_bitmap);
        else
                ethtype = qed_dcbx_app_ethtype(app_info_bitmap);

        return !!(ethtype && (proto_id == QED_ETH_TYPE_DEFAULT));
}

static bool qed_dcbx_iscsi_tlv(u32 app_info_bitmap, u16 proto_id, bool ieee)
{
        bool port;

        if (ieee)
                port = qed_dcbx_ieee_app_port(app_info_bitmap,
                                              DCBX_APP_SF_IEEE_TCP_PORT);
        else
                port = qed_dcbx_app_port(app_info_bitmap);

        return !!(port && (proto_id == QED_TCP_PORT_ISCSI));
}

static bool qed_dcbx_fcoe_tlv(u32 app_info_bitmap, u16 proto_id, bool ieee)
{
        bool ethtype;

        if (ieee)
                ethtype = qed_dcbx_ieee_app_ethtype(app_info_bitmap);
        else
                ethtype = qed_dcbx_app_ethtype(app_info_bitmap);

        return !!(ethtype && (proto_id == QED_ETH_TYPE_FCOE));
}

static bool qed_dcbx_roce_tlv(u32 app_info_bitmap, u16 proto_id, bool ieee)
{
        bool ethtype;

        if (ieee)
                ethtype = qed_dcbx_ieee_app_ethtype(app_info_bitmap);
        else
                ethtype = qed_dcbx_app_ethtype(app_info_bitmap);

        return !!(ethtype && (proto_id == QED_ETH_TYPE_ROCE));
}

static bool qed_dcbx_roce_v2_tlv(u32 app_info_bitmap, u16 proto_id, bool ieee)
{
        bool port;

        if (ieee)
                port = qed_dcbx_ieee_app_port(app_info_bitmap,
                                              DCBX_APP_SF_IEEE_UDP_PORT);
        else
                port = qed_dcbx_app_port(app_info_bitmap);

        return !!(port && (proto_id == QED_UDP_PORT_TYPE_ROCE_V2));
}

static void
qed_dcbx_dp_protocol(struct qed_hwfn *p_hwfn, struct qed_dcbx_results *p_data)
{
        enum dcbx_protocol_type id;
        int i;

        DP_VERBOSE(p_hwfn, QED_MSG_DCB, "DCBX negotiated: %d\n",
                   p_data->dcbx_enabled);

        for (i = 0; i < ARRAY_SIZE(qed_dcbx_app_update); i++) {
                id = qed_dcbx_app_update[i].id;

                DP_VERBOSE(p_hwfn, QED_MSG_DCB,
                           "%s info: update %d, enable %d, prio %d, tc %d, num_tc %d\n",
                           qed_dcbx_app_update[i].name, p_data->arr[id].update,
                           p_data->arr[id].enable, p_data->arr[id].priority,
                           p_data->arr[id].tc, p_hwfn->hw_info.num_active_tc);
        }
}

static void
qed_dcbx_set_params(struct qed_dcbx_results *p_data,
                    struct qed_hwfn *p_hwfn, struct qed_ptt *p_ptt,
                    bool app_tlv, bool enable, u8 prio, u8 tc,
                    enum dcbx_protocol_type type,
                    enum qed_pci_personality personality)
{
        /* PF update ramrod data */
        p_data->arr[type].enable = enable;
        p_data->arr[type].priority = prio;
        p_data->arr[type].tc = tc;
        if (enable)
                p_data->arr[type].update = UPDATE_DCB;
        else
                p_data->arr[type].update = DONT_UPDATE_DCB_DSCP;

        if (test_bit(QED_MF_DONT_ADD_VLAN0_TAG, &p_hwfn->cdev->mf_bits))
                p_data->arr[type].dont_add_vlan0 = true;

        /* QM reconf data */
        if (app_tlv && p_hwfn->hw_info.personality == personality)
                qed_hw_info_set_offload_tc(&p_hwfn->hw_info, tc);

        /* Configure dcbx vlan priority in doorbell block for roce EDPM */
        if (test_bit(QED_MF_UFP_SPECIFIC, &p_hwfn->cdev->mf_bits) &&
            type == DCBX_PROTOCOL_ROCE) {
                qed_wr(p_hwfn, p_ptt, DORQ_REG_TAG1_OVRD_MODE, 1);
                qed_wr(p_hwfn, p_ptt, DORQ_REG_PF_PCP_BB_K2, prio << 1);
        }
}

/* Update app protocol data and hw_info fields with the TLV info */
static void
qed_dcbx_update_app_info(struct qed_dcbx_results *p_data,
                         struct qed_hwfn *p_hwfn, struct qed_ptt *p_ptt,
                         bool app_tlv, bool enable, u8 prio, u8 tc,
                         enum dcbx_protocol_type type)
{
        enum qed_pci_personality personality;
        enum dcbx_protocol_type id;
        int i;

        for (i = 0; i < ARRAY_SIZE(qed_dcbx_app_update); i++) {
                id = qed_dcbx_app_update[i].id;

                if (type != id)
                        continue;

                personality = qed_dcbx_app_update[i].personality;

                qed_dcbx_set_params(p_data, p_hwfn, p_ptt, app_tlv, enable,
                                    prio, tc, type, personality);
        }
}

static bool
qed_dcbx_get_app_protocol_type(struct qed_hwfn *p_hwfn,
                               u32 app_prio_bitmap,
                               u16 id, enum dcbx_protocol_type *type, bool ieee)
{
        if (qed_dcbx_fcoe_tlv(app_prio_bitmap, id, ieee)) {
                *type = DCBX_PROTOCOL_FCOE;
        } else if (qed_dcbx_roce_tlv(app_prio_bitmap, id, ieee)) {
                *type = DCBX_PROTOCOL_ROCE;
        } else if (qed_dcbx_iscsi_tlv(app_prio_bitmap, id, ieee)) {
                *type = DCBX_PROTOCOL_ISCSI;
        } else if (qed_dcbx_default_tlv(app_prio_bitmap, id, ieee)) {
                *type = DCBX_PROTOCOL_ETH;
        } else if (qed_dcbx_roce_v2_tlv(app_prio_bitmap, id, ieee)) {
                *type = DCBX_PROTOCOL_ROCE_V2;
        } else {
                *type = DCBX_MAX_PROTOCOL_TYPE;
                DP_VERBOSE(p_hwfn, QED_MSG_DCB,
                           "No action required, App TLV entry = 0x%x\n",
                           app_prio_bitmap);
                return false;
        }

        return true;
}

/* Parse app TLV's to update TC information in hw_info structure for
 * reconfiguring QM. Get protocol specific data for PF update ramrod command.
 */
static int
qed_dcbx_process_tlv(struct qed_hwfn *p_hwfn, struct qed_ptt *p_ptt,
                     struct qed_dcbx_results *p_data,
                     struct dcbx_app_priority_entry *p_tbl,
                     u32 pri_tc_tbl, int count, u8 dcbx_version)
{
        enum dcbx_protocol_type type;
        bool enable, ieee, eth_tlv;
        u8 tc, priority_map;
        u16 protocol_id;
        int priority;
        int i;

        DP_VERBOSE(p_hwfn, QED_MSG_DCB, "Num APP entries = %d\n", count);

        ieee = (dcbx_version == DCBX_CONFIG_VERSION_IEEE);
        eth_tlv = false;
        /* Parse APP TLV */
        for (i = 0; i < count; i++) {
                protocol_id = QED_MFW_GET_FIELD(p_tbl[i].entry,
                                                DCBX_APP_PROTOCOL_ID);
                priority_map = QED_MFW_GET_FIELD(p_tbl[i].entry,
                                                 DCBX_APP_PRI_MAP);
                priority = ffs(priority_map) - 1;
                if (priority < 0) {
                        DP_ERR(p_hwfn, "Invalid priority\n");
                        return -EINVAL;
                }

                tc = QED_DCBX_PRIO2TC(pri_tc_tbl, priority);
                if (qed_dcbx_get_app_protocol_type(p_hwfn, p_tbl[i].entry,
                                                   protocol_id, &type, ieee)) {
                        /* ETH always have the enable bit reset, as it gets
                         * vlan information per packet. For other protocols,
                         * should be set according to the dcbx_enabled
                         * indication, but we only got here if there was an
                         * app tlv for the protocol, so dcbx must be enabled.
                         */
                        if (type == DCBX_PROTOCOL_ETH) {
                                enable = false;
                                eth_tlv = true;
                        } else {
                                enable = true;
                        }

                        qed_dcbx_update_app_info(p_data, p_hwfn, p_ptt, true,
                                                 enable, priority, tc, type);
                }
        }

        /* If Eth TLV is not detected, use UFP TC as default TC */
        if (test_bit(QED_MF_UFP_SPECIFIC, &p_hwfn->cdev->mf_bits) && !eth_tlv)
                p_data->arr[DCBX_PROTOCOL_ETH].tc = p_hwfn->ufp_info.tc;

        /* Update ramrod protocol data and hw_info fields
         * with default info when corresponding APP TLV's are not detected.
         * The enabled field has a different logic for ethernet as only for
         * ethernet dcb should disabled by default, as the information arrives
         * from the OS (unless an explicit app tlv was present).
         */
        tc = p_data->arr[DCBX_PROTOCOL_ETH].tc;
        priority = p_data->arr[DCBX_PROTOCOL_ETH].priority;
        for (type = 0; type < DCBX_MAX_PROTOCOL_TYPE; type++) {
                if (p_data->arr[type].update)
                        continue;

                enable = (type == DCBX_PROTOCOL_ETH) ? false : !!dcbx_version;
                qed_dcbx_update_app_info(p_data, p_hwfn, p_ptt, false, enable,
                                         priority, tc, type);
        }

        return 0;
}

/* Parse app TLV's to update TC information in hw_info structure for
 * reconfiguring QM. Get protocol specific data for PF update ramrod command.
 */
static int
qed_dcbx_process_mib_info(struct qed_hwfn *p_hwfn, struct qed_ptt *p_ptt)
{
        struct dcbx_app_priority_feature *p_app;
        struct dcbx_app_priority_entry *p_tbl;
        struct qed_dcbx_results data = { 0 };
        struct dcbx_ets_feature *p_ets;
        struct qed_hw_info *p_info;
        u32 pri_tc_tbl, flags;
        u8 dcbx_version;
        int num_entries;
        int rc = 0;

        flags = p_hwfn->p_dcbx_info->operational.flags;
        dcbx_version = QED_MFW_GET_FIELD(flags, DCBX_CONFIG_VERSION);

        p_app = &p_hwfn->p_dcbx_info->operational.features.app;
        p_tbl = p_app->app_pri_tbl;

        p_ets = &p_hwfn->p_dcbx_info->operational.features.ets;
        pri_tc_tbl = p_ets->pri_tc_tbl[0];

        p_info = &p_hwfn->hw_info;
        num_entries = QED_MFW_GET_FIELD(p_app->flags, DCBX_APP_NUM_ENTRIES);

        rc = qed_dcbx_process_tlv(p_hwfn, p_ptt, &data, p_tbl, pri_tc_tbl,
                                  num_entries, dcbx_version);
        if (rc)
                return rc;

        p_info->num_active_tc = QED_MFW_GET_FIELD(p_ets->flags,
                                                  DCBX_ETS_MAX_TCS);
        p_hwfn->qm_info.ooo_tc = QED_MFW_GET_FIELD(p_ets->flags, DCBX_OOO_TC);
        data.pf_id = p_hwfn->rel_pf_id;
        data.dcbx_enabled = !!dcbx_version;

        qed_dcbx_dp_protocol(p_hwfn, &data);

        memcpy(&p_hwfn->p_dcbx_info->results, &data,
               sizeof(struct qed_dcbx_results));

        return 0;
}

static int
qed_dcbx_copy_mib(struct qed_hwfn *p_hwfn,
                  struct qed_ptt *p_ptt,
                  struct qed_dcbx_mib_meta_data *p_data,
                  enum qed_mib_read_type type)
{
        u32 prefix_seq_num, suffix_seq_num;
        int read_count = 0;
        int rc = 0;

        /* The data is considered to be valid only if both sequence numbers are
         * the same.
         */
        do {
                if (type == QED_DCBX_REMOTE_LLDP_MIB) {
                        qed_memcpy_from(p_hwfn, p_ptt, p_data->lldp_remote,
                                        p_data->addr, p_data->size);
                        prefix_seq_num = p_data->lldp_remote->prefix_seq_num;
                        suffix_seq_num = p_data->lldp_remote->suffix_seq_num;
                } else {
                        qed_memcpy_from(p_hwfn, p_ptt, p_data->mib,
                                        p_data->addr, p_data->size);
                        prefix_seq_num = p_data->mib->prefix_seq_num;
                        suffix_seq_num = p_data->mib->suffix_seq_num;
                }
                read_count++;

                DP_VERBOSE(p_hwfn,
                           QED_MSG_DCB,
                           "mib type = %d, try count = %d prefix seq num  = %d suffix seq num = %d\n",
                           type, read_count, prefix_seq_num, suffix_seq_num);
        } while ((prefix_seq_num != suffix_seq_num) &&
                 (read_count < QED_DCBX_MAX_MIB_READ_TRY));

        if (read_count >= QED_DCBX_MAX_MIB_READ_TRY) {
                DP_ERR(p_hwfn,
                       "MIB read err, mib type = %d, try count = %d prefix seq num = %d suffix seq num = %d\n",
                       type, read_count, prefix_seq_num, suffix_seq_num);
                rc = -EIO;
        }

        return rc;
}

static void
qed_dcbx_get_priority_info(struct qed_hwfn *p_hwfn,
                           struct qed_dcbx_app_prio *p_prio,
                           struct qed_dcbx_results *p_results)
{
        u8 val;

        p_prio->roce = QED_DCBX_INVALID_PRIORITY;
        p_prio->roce_v2 = QED_DCBX_INVALID_PRIORITY;
        p_prio->iscsi = QED_DCBX_INVALID_PRIORITY;
        p_prio->fcoe = QED_DCBX_INVALID_PRIORITY;

        if (p_results->arr[DCBX_PROTOCOL_ROCE].update &&
            p_results->arr[DCBX_PROTOCOL_ROCE].enable)
                p_prio->roce = p_results->arr[DCBX_PROTOCOL_ROCE].priority;

        if (p_results->arr[DCBX_PROTOCOL_ROCE_V2].update &&
            p_results->arr[DCBX_PROTOCOL_ROCE_V2].enable) {
                val = p_results->arr[DCBX_PROTOCOL_ROCE_V2].priority;
                p_prio->roce_v2 = val;
        }

        if (p_results->arr[DCBX_PROTOCOL_ISCSI].update &&
            p_results->arr[DCBX_PROTOCOL_ISCSI].enable)
                p_prio->iscsi = p_results->arr[DCBX_PROTOCOL_ISCSI].priority;

        if (p_results->arr[DCBX_PROTOCOL_FCOE].update &&
            p_results->arr[DCBX_PROTOCOL_FCOE].enable)
                p_prio->fcoe = p_results->arr[DCBX_PROTOCOL_FCOE].priority;

        if (p_results->arr[DCBX_PROTOCOL_ETH].update &&
            p_results->arr[DCBX_PROTOCOL_ETH].enable)
                p_prio->eth = p_results->arr[DCBX_PROTOCOL_ETH].priority;

        DP_VERBOSE(p_hwfn, QED_MSG_DCB,
                   "Priorities: iscsi %d, roce %d, roce v2 %d, fcoe %d, eth %d\n",
                   p_prio->iscsi, p_prio->roce, p_prio->roce_v2, p_prio->fcoe,
                   p_prio->eth);
}

static void
qed_dcbx_get_app_data(struct qed_hwfn *p_hwfn,
                      struct dcbx_app_priority_feature *p_app,
                      struct dcbx_app_priority_entry *p_tbl,
                      struct qed_dcbx_params *p_params, bool ieee)
{
        struct qed_app_entry *entry;
        u8 pri_map;
        int i;

        p_params->app_willing = QED_MFW_GET_FIELD(p_app->flags,
                                                  DCBX_APP_WILLING);
        p_params->app_valid = QED_MFW_GET_FIELD(p_app->flags, DCBX_APP_ENABLED);
        p_params->app_error = QED_MFW_GET_FIELD(p_app->flags, DCBX_APP_ERROR);
        p_params->num_app_entries = QED_MFW_GET_FIELD(p_app->flags,
                                                      DCBX_APP_NUM_ENTRIES);
        for (i = 0; i < DCBX_MAX_APP_PROTOCOL; i++) {
                entry = &p_params->app_entry[i];
                if (ieee) {
                        u8 sf_ieee;
                        u32 val;

                        sf_ieee = QED_MFW_GET_FIELD(p_tbl[i].entry,
                                                    DCBX_APP_SF_IEEE);
                        switch (sf_ieee) {
                        case DCBX_APP_SF_IEEE_RESERVED:
                                /* Old MFW */
                                val = QED_MFW_GET_FIELD(p_tbl[i].entry,
                                                        DCBX_APP_SF);
                                entry->sf_ieee = val ?
                                    QED_DCBX_SF_IEEE_TCP_UDP_PORT :
                                    QED_DCBX_SF_IEEE_ETHTYPE;
                                break;
                        case DCBX_APP_SF_IEEE_ETHTYPE:
                                entry->sf_ieee = QED_DCBX_SF_IEEE_ETHTYPE;
                                break;
                        case DCBX_APP_SF_IEEE_TCP_PORT:
                                entry->sf_ieee = QED_DCBX_SF_IEEE_TCP_PORT;
                                break;
                        case DCBX_APP_SF_IEEE_UDP_PORT:
                                entry->sf_ieee = QED_DCBX_SF_IEEE_UDP_PORT;
                                break;
                        case DCBX_APP_SF_IEEE_TCP_UDP_PORT:
                                entry->sf_ieee = QED_DCBX_SF_IEEE_TCP_UDP_PORT;
                                break;
                        }
                } else {
                        entry->ethtype = !(QED_MFW_GET_FIELD(p_tbl[i].entry,
                                                             DCBX_APP_SF));
                }

                pri_map = QED_MFW_GET_FIELD(p_tbl[i].entry, DCBX_APP_PRI_MAP);
                entry->prio = ffs(pri_map) - 1;
                entry->proto_id = QED_MFW_GET_FIELD(p_tbl[i].entry,
                                                    DCBX_APP_PROTOCOL_ID);
                qed_dcbx_get_app_protocol_type(p_hwfn, p_tbl[i].entry,
                                               entry->proto_id,
                                               &entry->proto_type, ieee);
        }

        DP_VERBOSE(p_hwfn, QED_MSG_DCB,
                   "APP params: willing %d, valid %d error = %d\n",
                   p_params->app_willing, p_params->app_valid,
                   p_params->app_error);
}

static void
qed_dcbx_get_pfc_data(struct qed_hwfn *p_hwfn,
                      u32 pfc, struct qed_dcbx_params *p_params)
{
        u8 pfc_map;

        p_params->pfc.willing = QED_MFW_GET_FIELD(pfc, DCBX_PFC_WILLING);
        p_params->pfc.max_tc = QED_MFW_GET_FIELD(pfc, DCBX_PFC_CAPS);
        p_params->pfc.enabled = QED_MFW_GET_FIELD(pfc, DCBX_PFC_ENABLED);
        pfc_map = QED_MFW_GET_FIELD(pfc, DCBX_PFC_PRI_EN_BITMAP);
        p_params->pfc.prio[0] = !!(pfc_map & DCBX_PFC_PRI_EN_BITMAP_PRI_0);
        p_params->pfc.prio[1] = !!(pfc_map & DCBX_PFC_PRI_EN_BITMAP_PRI_1);
        p_params->pfc.prio[2] = !!(pfc_map & DCBX_PFC_PRI_EN_BITMAP_PRI_2);
        p_params->pfc.prio[3] = !!(pfc_map & DCBX_PFC_PRI_EN_BITMAP_PRI_3);
        p_params->pfc.prio[4] = !!(pfc_map & DCBX_PFC_PRI_EN_BITMAP_PRI_4);
        p_params->pfc.prio[5] = !!(pfc_map & DCBX_PFC_PRI_EN_BITMAP_PRI_5);
        p_params->pfc.prio[6] = !!(pfc_map & DCBX_PFC_PRI_EN_BITMAP_PRI_6);
        p_params->pfc.prio[7] = !!(pfc_map & DCBX_PFC_PRI_EN_BITMAP_PRI_7);

        DP_VERBOSE(p_hwfn, QED_MSG_DCB,
                   "PFC params: willing %d, pfc_bitmap %u max_tc = %u enabled = %d\n",
                   p_params->pfc.willing, pfc_map, p_params->pfc.max_tc,
                   p_params->pfc.enabled);
}

static void
qed_dcbx_get_ets_data(struct qed_hwfn *p_hwfn,
                      struct dcbx_ets_feature *p_ets,
                      struct qed_dcbx_params *p_params)
{
        __be32 bw_map[2], tsa_map[2];
        u32 pri_map;
        int i;

        p_params->ets_willing = QED_MFW_GET_FIELD(p_ets->flags,
                                                  DCBX_ETS_WILLING);
        p_params->ets_enabled = QED_MFW_GET_FIELD(p_ets->flags,
                                                  DCBX_ETS_ENABLED);
        p_params->ets_cbs = QED_MFW_GET_FIELD(p_ets->flags, DCBX_ETS_CBS);
        p_params->max_ets_tc = QED_MFW_GET_FIELD(p_ets->flags,
                                                 DCBX_ETS_MAX_TCS);
        DP_VERBOSE(p_hwfn, QED_MSG_DCB,
                   "ETS params: willing %d, enabled = %d ets_cbs %d pri_tc_tbl_0 %x max_ets_tc %d\n",
                   p_params->ets_willing, p_params->ets_enabled,
                   p_params->ets_cbs, p_ets->pri_tc_tbl[0],
                   p_params->max_ets_tc);

        if (p_params->ets_enabled && !p_params->max_ets_tc) {
                p_params->max_ets_tc = QED_MAX_PFC_PRIORITIES;
                DP_VERBOSE(p_hwfn, QED_MSG_DCB,
                           "ETS params: max_ets_tc is forced to %d\n",
                p_params->max_ets_tc);
        }

        /* 8 bit tsa and bw data corresponding to each of the 8 TC's are
         * encoded in a type u32 array of size 2.
         */
        cpu_to_be32_array(bw_map, p_ets->tc_bw_tbl, 2);
        cpu_to_be32_array(tsa_map, p_ets->tc_tsa_tbl, 2);
        pri_map = p_ets->pri_tc_tbl[0];

        for (i = 0; i < QED_MAX_PFC_PRIORITIES; i++) {
                p_params->ets_tc_bw_tbl[i] = ((u8 *)bw_map)[i];
                p_params->ets_tc_tsa_tbl[i] = ((u8 *)tsa_map)[i];
                p_params->ets_pri_tc_tbl[i] = QED_DCBX_PRIO2TC(pri_map, i);
                DP_VERBOSE(p_hwfn, QED_MSG_DCB,
                           "elem %d  bw_tbl %x tsa_tbl %x\n",
                           i, p_params->ets_tc_bw_tbl[i],
                           p_params->ets_tc_tsa_tbl[i]);
        }
}

static void
qed_dcbx_get_common_params(struct qed_hwfn *p_hwfn,
                           struct dcbx_app_priority_feature *p_app,
                           struct dcbx_app_priority_entry *p_tbl,
                           struct dcbx_ets_feature *p_ets,
                           u32 pfc, struct qed_dcbx_params *p_params, bool ieee)
{
        qed_dcbx_get_app_data(p_hwfn, p_app, p_tbl, p_params, ieee);
        qed_dcbx_get_ets_data(p_hwfn, p_ets, p_params);
        qed_dcbx_get_pfc_data(p_hwfn, pfc, p_params);
}

static void
qed_dcbx_get_local_params(struct qed_hwfn *p_hwfn, struct qed_dcbx_get *params)
{
        struct dcbx_features *p_feat;

        p_feat = &p_hwfn->p_dcbx_info->local_admin.features;
        qed_dcbx_get_common_params(p_hwfn, &p_feat->app,
                                   p_feat->app.app_pri_tbl, &p_feat->ets,
                                   p_feat->pfc, &params->local.params, false);
        params->local.valid = true;
}

static void
qed_dcbx_get_remote_params(struct qed_hwfn *p_hwfn, struct qed_dcbx_get *params)
{
        struct dcbx_features *p_feat;

        p_feat = &p_hwfn->p_dcbx_info->remote.features;
        qed_dcbx_get_common_params(p_hwfn, &p_feat->app,
                                   p_feat->app.app_pri_tbl, &p_feat->ets,
                                   p_feat->pfc, &params->remote.params, false);
        params->remote.valid = true;
}

static void
qed_dcbx_get_operational_params(struct qed_hwfn *p_hwfn,
                                struct qed_dcbx_get *params)
{
        struct qed_dcbx_operational_params *p_operational;
        struct qed_dcbx_results *p_results;
        struct dcbx_features *p_feat;
        bool enabled, err;
        u32 flags;
        bool val;

        flags = p_hwfn->p_dcbx_info->operational.flags;

        /* If DCBx version is non zero, then negotiation
         * was successfuly performed
         */
        p_operational = &params->operational;
        enabled = !!(QED_MFW_GET_FIELD(flags, DCBX_CONFIG_VERSION) !=
                     DCBX_CONFIG_VERSION_DISABLED);
        if (!enabled) {
                p_operational->enabled = enabled;
                p_operational->valid = false;
                DP_VERBOSE(p_hwfn, QED_MSG_DCB, "Dcbx is disabled\n");
                return;
        }

        p_feat = &p_hwfn->p_dcbx_info->operational.features;
        p_results = &p_hwfn->p_dcbx_info->results;

        val = !!(QED_MFW_GET_FIELD(flags, DCBX_CONFIG_VERSION) ==
                 DCBX_CONFIG_VERSION_IEEE);
        p_operational->ieee = val;
        val = !!(QED_MFW_GET_FIELD(flags, DCBX_CONFIG_VERSION) ==
                 DCBX_CONFIG_VERSION_CEE);
        p_operational->cee = val;

        val = !!(QED_MFW_GET_FIELD(flags, DCBX_CONFIG_VERSION) ==
                 DCBX_CONFIG_VERSION_STATIC);
        p_operational->local = val;

        DP_VERBOSE(p_hwfn, QED_MSG_DCB,
                   "Version support: ieee %d, cee %d, static %d\n",
                   p_operational->ieee, p_operational->cee,
                   p_operational->local);

        qed_dcbx_get_common_params(p_hwfn, &p_feat->app,
                                   p_feat->app.app_pri_tbl, &p_feat->ets,
                                   p_feat->pfc, &params->operational.params,
                                   p_operational->ieee);
        qed_dcbx_get_priority_info(p_hwfn, &p_operational->app_prio, p_results);
        err = QED_MFW_GET_FIELD(p_feat->app.flags, DCBX_APP_ERROR);
        p_operational->err = err;
        p_operational->enabled = enabled;
        p_operational->valid = true;
}

static void
qed_dcbx_get_local_lldp_params(struct qed_hwfn *p_hwfn,
                               struct qed_dcbx_get *params)
{
        struct lldp_config_params_s *p_local;

        p_local = &p_hwfn->p_dcbx_info->lldp_local[LLDP_NEAREST_BRIDGE];

        memcpy(params->lldp_local.local_chassis_id, p_local->local_chassis_id,
               sizeof(p_local->local_chassis_id));
        memcpy(params->lldp_local.local_port_id, p_local->local_port_id,
               sizeof(p_local->local_port_id));
}

static void
qed_dcbx_get_remote_lldp_params(struct qed_hwfn *p_hwfn,
                                struct qed_dcbx_get *params)
{
        struct lldp_status_params_s *p_remote;

        p_remote = &p_hwfn->p_dcbx_info->lldp_remote[LLDP_NEAREST_BRIDGE];

        memcpy(params->lldp_remote.peer_chassis_id, p_remote->peer_chassis_id,
               sizeof(p_remote->peer_chassis_id));
        memcpy(params->lldp_remote.peer_port_id, p_remote->peer_port_id,
               sizeof(p_remote->peer_port_id));
}

static int
qed_dcbx_get_params(struct qed_hwfn *p_hwfn, struct qed_dcbx_get *p_params,
                    enum qed_mib_read_type type)
{
        switch (type) {
        case QED_DCBX_REMOTE_MIB:
                qed_dcbx_get_remote_params(p_hwfn, p_params);
                break;
        case QED_DCBX_LOCAL_MIB:
                qed_dcbx_get_local_params(p_hwfn, p_params);
                break;
        case QED_DCBX_OPERATIONAL_MIB:
                qed_dcbx_get_operational_params(p_hwfn, p_params);
                break;
        case QED_DCBX_REMOTE_LLDP_MIB:
                qed_dcbx_get_remote_lldp_params(p_hwfn, p_params);
                break;
        case QED_DCBX_LOCAL_LLDP_MIB:
                qed_dcbx_get_local_lldp_params(p_hwfn, p_params);
                break;
        default:
                DP_ERR(p_hwfn, "MIB read err, unknown mib type %d\n", type);
                return -EINVAL;
        }

        return 0;
}

static int
qed_dcbx_read_local_lldp_mib(struct qed_hwfn *p_hwfn, struct qed_ptt *p_ptt)
{
        struct qed_dcbx_mib_meta_data data;

        memset(&data, 0, sizeof(data));
        data.addr = p_hwfn->mcp_info->port_addr + offsetof(struct public_port,
                                                           lldp_config_params);
        data.lldp_local = p_hwfn->p_dcbx_info->lldp_local;
        data.size = sizeof(struct lldp_config_params_s);
        qed_memcpy_from(p_hwfn, p_ptt, data.lldp_local, data.addr, data.size);

        return 0;
}

static int
qed_dcbx_read_remote_lldp_mib(struct qed_hwfn *p_hwfn,
                              struct qed_ptt *p_ptt,
                              enum qed_mib_read_type type)
{
        struct qed_dcbx_mib_meta_data data;
        int rc = 0;

        memset(&data, 0, sizeof(data));
        data.addr = p_hwfn->mcp_info->port_addr + offsetof(struct public_port,
                                                           lldp_status_params);
        data.lldp_remote = p_hwfn->p_dcbx_info->lldp_remote;
        data.size = sizeof(struct lldp_status_params_s);
        rc = qed_dcbx_copy_mib(p_hwfn, p_ptt, &data, type);

        return rc;
}

static int
qed_dcbx_read_operational_mib(struct qed_hwfn *p_hwfn,
                              struct qed_ptt *p_ptt,
                              enum qed_mib_read_type type)
{
        struct qed_dcbx_mib_meta_data data;
        int rc = 0;

        memset(&data, 0, sizeof(data));
        data.addr = p_hwfn->mcp_info->port_addr +
                    offsetof(struct public_port, operational_dcbx_mib);
        data.mib = &p_hwfn->p_dcbx_info->operational;
        data.size = sizeof(struct dcbx_mib);
        rc = qed_dcbx_copy_mib(p_hwfn, p_ptt, &data, type);

        return rc;
}

static int
qed_dcbx_read_remote_mib(struct qed_hwfn *p_hwfn,
                         struct qed_ptt *p_ptt, enum qed_mib_read_type type)
{
        struct qed_dcbx_mib_meta_data data;
        int rc = 0;

        memset(&data, 0, sizeof(data));
        data.addr = p_hwfn->mcp_info->port_addr +
                    offsetof(struct public_port, remote_dcbx_mib);
        data.mib = &p_hwfn->p_dcbx_info->remote;
        data.size = sizeof(struct dcbx_mib);
        rc = qed_dcbx_copy_mib(p_hwfn, p_ptt, &data, type);

        return rc;
}

static int
qed_dcbx_read_local_mib(struct qed_hwfn *p_hwfn, struct qed_ptt *p_ptt)
{
        struct qed_dcbx_mib_meta_data data;

        memset(&data, 0, sizeof(data));
        data.addr = p_hwfn->mcp_info->port_addr +
                    offsetof(struct public_port, local_admin_dcbx_mib);
        data.local_admin = &p_hwfn->p_dcbx_info->local_admin;
        data.size = sizeof(struct dcbx_local_params);
        qed_memcpy_from(p_hwfn, p_ptt, data.local_admin, data.addr, data.size);

        return 0;
}

static int qed_dcbx_read_mib(struct qed_hwfn *p_hwfn,
                             struct qed_ptt *p_ptt, enum qed_mib_read_type type)
{
        int rc = -EINVAL;

        switch (type) {
        case QED_DCBX_OPERATIONAL_MIB:
                rc = qed_dcbx_read_operational_mib(p_hwfn, p_ptt, type);
                break;
        case QED_DCBX_REMOTE_MIB:
                rc = qed_dcbx_read_remote_mib(p_hwfn, p_ptt, type);
                break;
        case QED_DCBX_LOCAL_MIB:
                rc = qed_dcbx_read_local_mib(p_hwfn, p_ptt);
                break;
        case QED_DCBX_REMOTE_LLDP_MIB:
                rc = qed_dcbx_read_remote_lldp_mib(p_hwfn, p_ptt, type);
                break;
        case QED_DCBX_LOCAL_LLDP_MIB:
                rc = qed_dcbx_read_local_lldp_mib(p_hwfn, p_ptt);
                break;
        default:
                DP_ERR(p_hwfn, "MIB read err, unknown mib type %d\n", type);
        }

        return rc;
}

static void qed_dcbx_aen(struct qed_hwfn *hwfn, u32 mib_type)
{
        struct qed_common_cb_ops *op = hwfn->cdev->protocol_ops.common;
        void *cookie = hwfn->cdev->ops_cookie;

        if (cookie && op->dcbx_aen)
                op->dcbx_aen(cookie, &hwfn->p_dcbx_info->get, mib_type);
}

/* Read updated MIB.
 * Reconfigure QM and invoke PF update ramrod command if operational MIB
 * change is detected.
 */
int
qed_dcbx_mib_update_event(struct qed_hwfn *p_hwfn,
                          struct qed_ptt *p_ptt, enum qed_mib_read_type type)
{
        int rc = 0;

        rc = qed_dcbx_read_mib(p_hwfn, p_ptt, type);
        if (rc)
                return rc;

        if (type == QED_DCBX_OPERATIONAL_MIB) {
                rc = qed_dcbx_process_mib_info(p_hwfn, p_ptt);
                if (!rc) {
                        /* reconfigure tcs of QM queues according
                         * to negotiation results
                         */
                        qed_qm_reconf(p_hwfn, p_ptt);

                        /* update storm FW with negotiation results */
                        qed_sp_pf_update(p_hwfn);

                        /* for roce PFs, we may want to enable/disable DPM
                         * when DCBx change occurs
                         */
                        if (p_hwfn->hw_info.personality ==
                            QED_PCI_ETH_ROCE)
                                qed_roce_dpm_dcbx(p_hwfn, p_ptt);
                }
        }

        qed_dcbx_get_params(p_hwfn, &p_hwfn->p_dcbx_info->get, type);

        if (type == QED_DCBX_OPERATIONAL_MIB) {
                struct qed_dcbx_results *p_data;
                u16 val;

                /* Configure in NIG which protocols support EDPM and should
                 * honor PFC.
                 */
                p_data = &p_hwfn->p_dcbx_info->results;
                val = (0x1 << p_data->arr[DCBX_PROTOCOL_ROCE].tc) |
                      (0x1 << p_data->arr[DCBX_PROTOCOL_ROCE_V2].tc);
                val <<= NIG_REG_TX_EDPM_CTRL_TX_EDPM_TC_EN_SHIFT;
                val |= NIG_REG_TX_EDPM_CTRL_TX_EDPM_EN;
                qed_wr(p_hwfn, p_ptt, NIG_REG_TX_EDPM_CTRL, val);
        }

        qed_dcbx_aen(p_hwfn, type);

        return rc;
}

int qed_dcbx_info_alloc(struct qed_hwfn *p_hwfn)
{
        p_hwfn->p_dcbx_info = kzalloc_obj(*p_hwfn->p_dcbx_info);
        if (!p_hwfn->p_dcbx_info)
                return -ENOMEM;

        return 0;
}

void qed_dcbx_info_free(struct qed_hwfn *p_hwfn)
{
        kfree(p_hwfn->p_dcbx_info);
        p_hwfn->p_dcbx_info = NULL;
}

static void qed_dcbx_update_protocol_data(struct protocol_dcb_data *p_data,
                                          struct qed_dcbx_results *p_src,
                                          enum dcbx_protocol_type type)
{
        p_data->dcb_enable_flag = p_src->arr[type].enable;
        p_data->dcb_priority = p_src->arr[type].priority;
        p_data->dcb_tc = p_src->arr[type].tc;
        p_data->dcb_dont_add_vlan0 = p_src->arr[type].dont_add_vlan0;
}

/* Set pf update ramrod command params */
void qed_dcbx_set_pf_update_params(struct qed_dcbx_results *p_src,
                                   struct pf_update_ramrod_data *p_dest)
{
        struct protocol_dcb_data *p_dcb_data;
        u8 update_flag;

        update_flag = p_src->arr[DCBX_PROTOCOL_FCOE].update;
        p_dest->update_fcoe_dcb_data_mode = update_flag;

        update_flag = p_src->arr[DCBX_PROTOCOL_ROCE].update;
        p_dest->update_roce_dcb_data_mode = update_flag;

        update_flag = p_src->arr[DCBX_PROTOCOL_ROCE_V2].update;
        p_dest->update_rroce_dcb_data_mode = update_flag;

        update_flag = p_src->arr[DCBX_PROTOCOL_ISCSI].update;
        p_dest->update_iscsi_dcb_data_mode = update_flag;
        update_flag = p_src->arr[DCBX_PROTOCOL_ETH].update;
        p_dest->update_eth_dcb_data_mode = update_flag;

        p_dcb_data = &p_dest->fcoe_dcb_data;
        qed_dcbx_update_protocol_data(p_dcb_data, p_src, DCBX_PROTOCOL_FCOE);
        p_dcb_data = &p_dest->roce_dcb_data;
        qed_dcbx_update_protocol_data(p_dcb_data, p_src, DCBX_PROTOCOL_ROCE);
        p_dcb_data = &p_dest->rroce_dcb_data;
        qed_dcbx_update_protocol_data(p_dcb_data, p_src, DCBX_PROTOCOL_ROCE_V2);
        p_dcb_data = &p_dest->iscsi_dcb_data;
        qed_dcbx_update_protocol_data(p_dcb_data, p_src, DCBX_PROTOCOL_ISCSI);
        p_dcb_data = &p_dest->eth_dcb_data;
        qed_dcbx_update_protocol_data(p_dcb_data, p_src, DCBX_PROTOCOL_ETH);
}

u8 qed_dcbx_get_priority_tc(struct qed_hwfn *p_hwfn, u8 pri)
{
        struct qed_dcbx_get *dcbx_info = &p_hwfn->p_dcbx_info->get;

        if (pri >= QED_MAX_PFC_PRIORITIES) {
                DP_ERR(p_hwfn, "Invalid priority %d\n", pri);
                return QED_DCBX_DEFAULT_TC;
        }

        if (!dcbx_info->operational.valid) {
                DP_VERBOSE(p_hwfn, QED_MSG_DCB,
                           "Dcbx parameters not available\n");
                return QED_DCBX_DEFAULT_TC;
        }

        return dcbx_info->operational.params.ets_pri_tc_tbl[pri];
}

#ifdef CONFIG_DCB
static int qed_dcbx_query_params(struct qed_hwfn *p_hwfn,
                                 struct qed_dcbx_get *p_get,
                                 enum qed_mib_read_type type)
{
        struct qed_ptt *p_ptt;
        int rc;

        if (IS_VF(p_hwfn->cdev))
                return -EINVAL;

        p_ptt = qed_ptt_acquire(p_hwfn);
        if (!p_ptt)
                return -EBUSY;

        rc = qed_dcbx_read_mib(p_hwfn, p_ptt, type);
        if (rc)
                goto out;

        rc = qed_dcbx_get_params(p_hwfn, p_get, type);

out:
        qed_ptt_release(p_hwfn, p_ptt);
        return rc;
}

static void
qed_dcbx_set_pfc_data(struct qed_hwfn *p_hwfn,
                      u32 *pfc, struct qed_dcbx_params *p_params)
{
        u8 pfc_map = 0;
        int i;

        *pfc &= ~DCBX_PFC_ERROR_MASK;

        if (p_params->pfc.willing)
                *pfc |= DCBX_PFC_WILLING_MASK;
        else
                *pfc &= ~DCBX_PFC_WILLING_MASK;

        if (p_params->pfc.enabled)
                *pfc |= DCBX_PFC_ENABLED_MASK;
        else
                *pfc &= ~DCBX_PFC_ENABLED_MASK;

        *pfc &= ~DCBX_PFC_CAPS_MASK;
        *pfc |= (u32)p_params->pfc.max_tc << DCBX_PFC_CAPS_SHIFT;

        for (i = 0; i < QED_MAX_PFC_PRIORITIES; i++)
                if (p_params->pfc.prio[i])
                        pfc_map |= BIT(i);

        *pfc &= ~DCBX_PFC_PRI_EN_BITMAP_MASK;
        *pfc |= (pfc_map << DCBX_PFC_PRI_EN_BITMAP_SHIFT);

        DP_VERBOSE(p_hwfn, QED_MSG_DCB, "pfc = 0x%x\n", *pfc);
}

static void
qed_dcbx_set_ets_data(struct qed_hwfn *p_hwfn,
                      struct dcbx_ets_feature *p_ets,
                      struct qed_dcbx_params *p_params)
{
        __be32 bw_map[2], tsa_map[2];
        u32 val;
        int i;

        if (p_params->ets_willing)
                p_ets->flags |= DCBX_ETS_WILLING_MASK;
        else
                p_ets->flags &= ~DCBX_ETS_WILLING_MASK;

        if (p_params->ets_cbs)
                p_ets->flags |= DCBX_ETS_CBS_MASK;
        else
                p_ets->flags &= ~DCBX_ETS_CBS_MASK;

        if (p_params->ets_enabled)
                p_ets->flags |= DCBX_ETS_ENABLED_MASK;
        else
                p_ets->flags &= ~DCBX_ETS_ENABLED_MASK;

        p_ets->flags &= ~DCBX_ETS_MAX_TCS_MASK;
        p_ets->flags |= (u32)p_params->max_ets_tc << DCBX_ETS_MAX_TCS_SHIFT;

        p_ets->pri_tc_tbl[0] = 0;

        for (i = 0; i < QED_MAX_PFC_PRIORITIES; i++) {
                ((u8 *)bw_map)[i] = p_params->ets_tc_bw_tbl[i];
                ((u8 *)tsa_map)[i] = p_params->ets_tc_tsa_tbl[i];

                /* Copy the priority value to the corresponding 4 bits in the
                 * traffic class table.
                 */
                val = (((u32)p_params->ets_pri_tc_tbl[i]) << ((7 - i) * 4));
                p_ets->pri_tc_tbl[0] |= val;
        }

        be32_to_cpu_array(p_ets->tc_bw_tbl, bw_map, 2);
        be32_to_cpu_array(p_ets->tc_tsa_tbl, tsa_map, 2);
}

static void
qed_dcbx_set_app_data(struct qed_hwfn *p_hwfn,
                      struct dcbx_app_priority_feature *p_app,
                      struct qed_dcbx_params *p_params, bool ieee)
{
        u32 *entry;
        int i;

        if (p_params->app_willing)
                p_app->flags |= DCBX_APP_WILLING_MASK;
        else
                p_app->flags &= ~DCBX_APP_WILLING_MASK;

        if (p_params->app_valid)
                p_app->flags |= DCBX_APP_ENABLED_MASK;
        else
                p_app->flags &= ~DCBX_APP_ENABLED_MASK;

        p_app->flags &= ~DCBX_APP_NUM_ENTRIES_MASK;
        p_app->flags |= (u32)p_params->num_app_entries <<
            DCBX_APP_NUM_ENTRIES_SHIFT;

        for (i = 0; i < DCBX_MAX_APP_PROTOCOL; i++) {
                entry = &p_app->app_pri_tbl[i].entry;
                *entry = 0;
                if (ieee) {
                        *entry &= ~(DCBX_APP_SF_IEEE_MASK | DCBX_APP_SF_MASK);
                        switch (p_params->app_entry[i].sf_ieee) {
                        case QED_DCBX_SF_IEEE_ETHTYPE:
                                *entry |= ((u32)DCBX_APP_SF_IEEE_ETHTYPE <<
                                           DCBX_APP_SF_IEEE_SHIFT);
                                *entry |= ((u32)DCBX_APP_SF_ETHTYPE <<
                                           DCBX_APP_SF_SHIFT);
                                break;
                        case QED_DCBX_SF_IEEE_TCP_PORT:
                                *entry |= ((u32)DCBX_APP_SF_IEEE_TCP_PORT <<
                                           DCBX_APP_SF_IEEE_SHIFT);
                                *entry |= ((u32)DCBX_APP_SF_PORT <<
                                           DCBX_APP_SF_SHIFT);
                                break;
                        case QED_DCBX_SF_IEEE_UDP_PORT:
                                *entry |= ((u32)DCBX_APP_SF_IEEE_UDP_PORT <<
                                           DCBX_APP_SF_IEEE_SHIFT);
                                *entry |= ((u32)DCBX_APP_SF_PORT <<
                                           DCBX_APP_SF_SHIFT);
                                break;
                        case QED_DCBX_SF_IEEE_TCP_UDP_PORT:
                                *entry |= ((u32)DCBX_APP_SF_IEEE_TCP_UDP_PORT <<
                                           DCBX_APP_SF_IEEE_SHIFT);
                                *entry |= ((u32)DCBX_APP_SF_PORT <<
                                           DCBX_APP_SF_SHIFT);
                                break;
                        }
                } else {
                        *entry &= ~DCBX_APP_SF_MASK;
                        if (p_params->app_entry[i].ethtype)
                                *entry |= ((u32)DCBX_APP_SF_ETHTYPE <<
                                           DCBX_APP_SF_SHIFT);
                        else
                                *entry |= ((u32)DCBX_APP_SF_PORT <<
                                           DCBX_APP_SF_SHIFT);
                }

                *entry &= ~DCBX_APP_PROTOCOL_ID_MASK;
                *entry |= ((u32)p_params->app_entry[i].proto_id <<
                           DCBX_APP_PROTOCOL_ID_SHIFT);
                *entry &= ~DCBX_APP_PRI_MAP_MASK;
                *entry |= ((u32)(p_params->app_entry[i].prio) <<
                           DCBX_APP_PRI_MAP_SHIFT);
        }
}

static void
qed_dcbx_set_local_params(struct qed_hwfn *p_hwfn,
                          struct dcbx_local_params *local_admin,
                          struct qed_dcbx_set *params)
{
        bool ieee = false;

        local_admin->flags = 0;
        memcpy(&local_admin->features,
               &p_hwfn->p_dcbx_info->operational.features,
               sizeof(local_admin->features));

        if (params->enabled) {
                local_admin->config = params->ver_num;
                ieee = !!(params->ver_num & DCBX_CONFIG_VERSION_IEEE);
        } else {
                local_admin->config = DCBX_CONFIG_VERSION_DISABLED;
        }

        DP_VERBOSE(p_hwfn, QED_MSG_DCB, "Dcbx version = %d\n",
                   local_admin->config);

        if (params->override_flags & QED_DCBX_OVERRIDE_PFC_CFG)
                qed_dcbx_set_pfc_data(p_hwfn, &local_admin->features.pfc,
                                      &params->config.params);

        if (params->override_flags & QED_DCBX_OVERRIDE_ETS_CFG)
                qed_dcbx_set_ets_data(p_hwfn, &local_admin->features.ets,
                                      &params->config.params);

        if (params->override_flags & QED_DCBX_OVERRIDE_APP_CFG)
                qed_dcbx_set_app_data(p_hwfn, &local_admin->features.app,
                                      &params->config.params, ieee);
}

int qed_dcbx_config_params(struct qed_hwfn *p_hwfn, struct qed_ptt *p_ptt,
                           struct qed_dcbx_set *params, bool hw_commit)
{
        struct dcbx_local_params local_admin;
        struct qed_dcbx_mib_meta_data data;
        u32 resp = 0, param = 0;
        int rc = 0;

        if (!hw_commit) {
                memcpy(&p_hwfn->p_dcbx_info->set, params,
                       sizeof(struct qed_dcbx_set));
                return 0;
        }

        /* clear set-parmas cache */
        memset(&p_hwfn->p_dcbx_info->set, 0, sizeof(p_hwfn->p_dcbx_info->set));

        memset(&local_admin, 0, sizeof(local_admin));
        qed_dcbx_set_local_params(p_hwfn, &local_admin, params);

        data.addr = p_hwfn->mcp_info->port_addr +
            offsetof(struct public_port, local_admin_dcbx_mib);
        data.local_admin = &local_admin;
        data.size = sizeof(struct dcbx_local_params);
        qed_memcpy_to(p_hwfn, p_ptt, data.addr, data.local_admin, data.size);

        rc = qed_mcp_cmd(p_hwfn, p_ptt, DRV_MSG_CODE_SET_DCBX,
                         1 << DRV_MB_PARAM_LLDP_SEND_SHIFT, &resp, &param);
        if (rc)
                DP_NOTICE(p_hwfn, "Failed to send DCBX update request\n");

        return rc;
}

int qed_dcbx_get_config_params(struct qed_hwfn *p_hwfn,
                               struct qed_dcbx_set *params)
{
        struct qed_dcbx_get *dcbx_info;
        int rc;

        if (p_hwfn->p_dcbx_info->set.config.valid) {
                memcpy(params, &p_hwfn->p_dcbx_info->set,
                       sizeof(struct qed_dcbx_set));
                return 0;
        }

        dcbx_info = kzalloc_obj(*dcbx_info);
        if (!dcbx_info)
                return -ENOMEM;

        rc = qed_dcbx_query_params(p_hwfn, dcbx_info, QED_DCBX_OPERATIONAL_MIB);
        if (rc) {
                kfree(dcbx_info);
                return rc;
        }

        p_hwfn->p_dcbx_info->set.override_flags = 0;
        p_hwfn->p_dcbx_info->set.ver_num = DCBX_CONFIG_VERSION_DISABLED;
        if (dcbx_info->operational.cee)
                p_hwfn->p_dcbx_info->set.ver_num |= DCBX_CONFIG_VERSION_CEE;
        if (dcbx_info->operational.ieee)
                p_hwfn->p_dcbx_info->set.ver_num |= DCBX_CONFIG_VERSION_IEEE;
        if (dcbx_info->operational.local)
                p_hwfn->p_dcbx_info->set.ver_num |= DCBX_CONFIG_VERSION_STATIC;

        p_hwfn->p_dcbx_info->set.enabled = dcbx_info->operational.enabled;
        BUILD_BUG_ON(sizeof(dcbx_info->operational.params) !=
                     sizeof(p_hwfn->p_dcbx_info->set.config.params));
        memcpy(&p_hwfn->p_dcbx_info->set.config.params,
               &dcbx_info->operational.params,
               sizeof(p_hwfn->p_dcbx_info->set.config.params));
        p_hwfn->p_dcbx_info->set.config.valid = true;

        memcpy(params, &p_hwfn->p_dcbx_info->set, sizeof(struct qed_dcbx_set));

        kfree(dcbx_info);

        return 0;
}

static struct qed_dcbx_get *qed_dcbnl_get_dcbx(struct qed_hwfn *hwfn,
                                               enum qed_mib_read_type type)
{
        struct qed_dcbx_get *dcbx_info;

        dcbx_info = kzalloc_obj(*dcbx_info, GFP_ATOMIC);
        if (!dcbx_info)
                return NULL;

        if (qed_dcbx_query_params(hwfn, dcbx_info, type)) {
                kfree(dcbx_info);
                return NULL;
        }

        if ((type == QED_DCBX_OPERATIONAL_MIB) &&
            !dcbx_info->operational.enabled) {
                DP_INFO(hwfn, "DCBX is not enabled/operational\n");
                kfree(dcbx_info);
                return NULL;
        }

        return dcbx_info;
}

static u8 qed_dcbnl_getstate(struct qed_dev *cdev)
{
        struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
        struct qed_dcbx_get *dcbx_info;
        bool enabled;

        dcbx_info = qed_dcbnl_get_dcbx(hwfn, QED_DCBX_OPERATIONAL_MIB);
        if (!dcbx_info)
                return 0;

        enabled = dcbx_info->operational.enabled;
        DP_VERBOSE(hwfn, QED_MSG_DCB, "DCB state = %d\n", enabled);
        kfree(dcbx_info);

        return enabled;
}

static u8 qed_dcbnl_setstate(struct qed_dev *cdev, u8 state)
{
        struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
        struct qed_dcbx_set dcbx_set;
        struct qed_ptt *ptt;
        int rc;

        DP_VERBOSE(hwfn, QED_MSG_DCB, "DCB state = %d\n", state);

        memset(&dcbx_set, 0, sizeof(dcbx_set));
        rc = qed_dcbx_get_config_params(hwfn, &dcbx_set);
        if (rc)
                return 1;

        dcbx_set.enabled = !!state;

        ptt = qed_ptt_acquire(hwfn);
        if (!ptt)
                return 1;

        rc = qed_dcbx_config_params(hwfn, ptt, &dcbx_set, 0);

        qed_ptt_release(hwfn, ptt);

        return rc ? 1 : 0;
}

static void qed_dcbnl_getpgtccfgtx(struct qed_dev *cdev, int tc, u8 *prio_type,
                                   u8 *pgid, u8 *bw_pct, u8 *up_map)
{
        struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
        struct qed_dcbx_get *dcbx_info;

        DP_VERBOSE(hwfn, QED_MSG_DCB, "tc = %d\n", tc);
        *prio_type = *pgid = *bw_pct = *up_map = 0;
        if (tc < 0 || tc >= QED_MAX_PFC_PRIORITIES) {
                DP_INFO(hwfn, "Invalid tc %d\n", tc);
                return;
        }

        dcbx_info = qed_dcbnl_get_dcbx(hwfn, QED_DCBX_OPERATIONAL_MIB);
        if (!dcbx_info)
                return;

        *pgid = dcbx_info->operational.params.ets_pri_tc_tbl[tc];
        kfree(dcbx_info);
}

static void qed_dcbnl_getpgbwgcfgtx(struct qed_dev *cdev, int pgid, u8 *bw_pct)
{
        struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
        struct qed_dcbx_get *dcbx_info;

        *bw_pct = 0;
        DP_VERBOSE(hwfn, QED_MSG_DCB, "pgid = %d\n", pgid);
        if (pgid < 0 || pgid >= QED_MAX_PFC_PRIORITIES) {
                DP_INFO(hwfn, "Invalid pgid %d\n", pgid);
                return;
        }

        dcbx_info = qed_dcbnl_get_dcbx(hwfn, QED_DCBX_OPERATIONAL_MIB);
        if (!dcbx_info)
                return;

        *bw_pct = dcbx_info->operational.params.ets_tc_bw_tbl[pgid];
        DP_VERBOSE(hwfn, QED_MSG_DCB, "bw_pct = %d\n", *bw_pct);
        kfree(dcbx_info);
}

static void qed_dcbnl_getpgtccfgrx(struct qed_dev *cdev, int tc, u8 *prio,
                                   u8 *bwg_id, u8 *bw_pct, u8 *up_map)
{
        DP_INFO(QED_LEADING_HWFN(cdev), "Rx ETS is not supported\n");
        *prio = *bwg_id = *bw_pct = *up_map = 0;
}

static void qed_dcbnl_getpgbwgcfgrx(struct qed_dev *cdev,
                                    int bwg_id, u8 *bw_pct)
{
        DP_INFO(QED_LEADING_HWFN(cdev), "Rx ETS is not supported\n");
        *bw_pct = 0;
}

static void qed_dcbnl_getpfccfg(struct qed_dev *cdev,
                                int priority, u8 *setting)
{
        struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
        struct qed_dcbx_get *dcbx_info;

        DP_VERBOSE(hwfn, QED_MSG_DCB, "priority = %d\n", priority);
        if (priority < 0 || priority >= QED_MAX_PFC_PRIORITIES) {
                DP_INFO(hwfn, "Invalid priority %d\n", priority);
                return;
        }

        dcbx_info = qed_dcbnl_get_dcbx(hwfn, QED_DCBX_OPERATIONAL_MIB);
        if (!dcbx_info)
                return;

        *setting = dcbx_info->operational.params.pfc.prio[priority];
        DP_VERBOSE(hwfn, QED_MSG_DCB, "setting = %d\n", *setting);
        kfree(dcbx_info);
}

static void qed_dcbnl_setpfccfg(struct qed_dev *cdev, int priority, u8 setting)
{
        struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
        struct qed_dcbx_set dcbx_set;
        struct qed_ptt *ptt;
        int rc;

        DP_VERBOSE(hwfn, QED_MSG_DCB, "priority = %d setting = %d\n",
                   priority, setting);
        if (priority < 0 || priority >= QED_MAX_PFC_PRIORITIES) {
                DP_INFO(hwfn, "Invalid priority %d\n", priority);
                return;
        }

        memset(&dcbx_set, 0, sizeof(dcbx_set));
        rc = qed_dcbx_get_config_params(hwfn, &dcbx_set);
        if (rc)
                return;

        dcbx_set.override_flags |= QED_DCBX_OVERRIDE_PFC_CFG;
        dcbx_set.config.params.pfc.prio[priority] = !!setting;

        ptt = qed_ptt_acquire(hwfn);
        if (!ptt)
                return;

        rc = qed_dcbx_config_params(hwfn, ptt, &dcbx_set, 0);

        qed_ptt_release(hwfn, ptt);
}

static u8 qed_dcbnl_getcap(struct qed_dev *cdev, int capid, u8 *cap)
{
        struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
        struct qed_dcbx_get *dcbx_info;
        int rc = 0;

        DP_VERBOSE(hwfn, QED_MSG_DCB, "capid = %d\n", capid);
        dcbx_info = qed_dcbnl_get_dcbx(hwfn, QED_DCBX_OPERATIONAL_MIB);
        if (!dcbx_info)
                return 1;

        switch (capid) {
        case DCB_CAP_ATTR_PG:
        case DCB_CAP_ATTR_PFC:
        case DCB_CAP_ATTR_UP2TC:
        case DCB_CAP_ATTR_GSP:
                *cap = true;
                break;
        case DCB_CAP_ATTR_PG_TCS:
        case DCB_CAP_ATTR_PFC_TCS:
                *cap = 0x80;
                break;
        case DCB_CAP_ATTR_DCBX:
                *cap = (DCB_CAP_DCBX_VER_CEE | DCB_CAP_DCBX_VER_IEEE |
                        DCB_CAP_DCBX_STATIC);
                break;
        default:
                *cap = false;
                rc = 1;
        }

        DP_VERBOSE(hwfn, QED_MSG_DCB, "id = %d caps = %d\n", capid, *cap);
        kfree(dcbx_info);

        return rc;
}

static int qed_dcbnl_getnumtcs(struct qed_dev *cdev, int tcid, u8 *num)
{
        struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
        struct qed_dcbx_get *dcbx_info;
        int rc = 0;

        DP_VERBOSE(hwfn, QED_MSG_DCB, "tcid = %d\n", tcid);
        dcbx_info = qed_dcbnl_get_dcbx(hwfn, QED_DCBX_OPERATIONAL_MIB);
        if (!dcbx_info)
                return -EINVAL;

        switch (tcid) {
        case DCB_NUMTCS_ATTR_PG:
                *num = dcbx_info->operational.params.max_ets_tc;
                break;
        case DCB_NUMTCS_ATTR_PFC:
                *num = dcbx_info->operational.params.pfc.max_tc;
                break;
        default:
                rc = -EINVAL;
        }

        kfree(dcbx_info);
        DP_VERBOSE(hwfn, QED_MSG_DCB, "numtcs = %d\n", *num);

        return rc;
}

static u8 qed_dcbnl_getpfcstate(struct qed_dev *cdev)
{
        struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
        struct qed_dcbx_get *dcbx_info;
        bool enabled;

        dcbx_info = qed_dcbnl_get_dcbx(hwfn, QED_DCBX_OPERATIONAL_MIB);
        if (!dcbx_info)
                return 0;

        enabled = dcbx_info->operational.params.pfc.enabled;
        DP_VERBOSE(hwfn, QED_MSG_DCB, "pfc state = %d\n", enabled);
        kfree(dcbx_info);

        return enabled;
}

static u8 qed_dcbnl_getdcbx(struct qed_dev *cdev)
{
        struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
        struct qed_dcbx_get *dcbx_info;
        u8 mode = 0;

        dcbx_info = qed_dcbnl_get_dcbx(hwfn, QED_DCBX_OPERATIONAL_MIB);
        if (!dcbx_info)
                return 0;

        if (dcbx_info->operational.ieee)
                mode |= DCB_CAP_DCBX_VER_IEEE;
        if (dcbx_info->operational.cee)
                mode |= DCB_CAP_DCBX_VER_CEE;
        if (dcbx_info->operational.local)
                mode |= DCB_CAP_DCBX_STATIC;

        DP_VERBOSE(hwfn, QED_MSG_DCB, "dcb mode = %d\n", mode);
        kfree(dcbx_info);

        return mode;
}

static void qed_dcbnl_setpgtccfgtx(struct qed_dev *cdev,
                                   int tc,
                                   u8 pri_type, u8 pgid, u8 bw_pct, u8 up_map)
{
        struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
        struct qed_dcbx_set dcbx_set;
        struct qed_ptt *ptt;
        int rc;

        DP_VERBOSE(hwfn, QED_MSG_DCB,
                   "tc = %d pri_type = %d pgid = %d bw_pct = %d up_map = %d\n",
                   tc, pri_type, pgid, bw_pct, up_map);

        if (tc < 0 || tc >= QED_MAX_PFC_PRIORITIES) {
                DP_INFO(hwfn, "Invalid tc %d\n", tc);
                return;
        }

        memset(&dcbx_set, 0, sizeof(dcbx_set));
        rc = qed_dcbx_get_config_params(hwfn, &dcbx_set);
        if (rc)
                return;

        dcbx_set.override_flags |= QED_DCBX_OVERRIDE_ETS_CFG;
        dcbx_set.config.params.ets_pri_tc_tbl[tc] = pgid;

        ptt = qed_ptt_acquire(hwfn);
        if (!ptt)
                return;

        rc = qed_dcbx_config_params(hwfn, ptt, &dcbx_set, 0);

        qed_ptt_release(hwfn, ptt);
}

static void qed_dcbnl_setpgtccfgrx(struct qed_dev *cdev, int prio,
                                   u8 pri_type, u8 pgid, u8 bw_pct, u8 up_map)
{
        DP_INFO(QED_LEADING_HWFN(cdev), "Rx ETS is not supported\n");
}

static void qed_dcbnl_setpgbwgcfgtx(struct qed_dev *cdev, int pgid, u8 bw_pct)
{
        struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
        struct qed_dcbx_set dcbx_set;
        struct qed_ptt *ptt;
        int rc;

        DP_VERBOSE(hwfn, QED_MSG_DCB, "pgid = %d bw_pct = %d\n", pgid, bw_pct);
        if (pgid < 0 || pgid >= QED_MAX_PFC_PRIORITIES) {
                DP_INFO(hwfn, "Invalid pgid %d\n", pgid);
                return;
        }

        memset(&dcbx_set, 0, sizeof(dcbx_set));
        rc = qed_dcbx_get_config_params(hwfn, &dcbx_set);
        if (rc)
                return;

        dcbx_set.override_flags |= QED_DCBX_OVERRIDE_ETS_CFG;
        dcbx_set.config.params.ets_tc_bw_tbl[pgid] = bw_pct;

        ptt = qed_ptt_acquire(hwfn);
        if (!ptt)
                return;

        rc = qed_dcbx_config_params(hwfn, ptt, &dcbx_set, 0);

        qed_ptt_release(hwfn, ptt);
}

static void qed_dcbnl_setpgbwgcfgrx(struct qed_dev *cdev, int pgid, u8 bw_pct)
{
        DP_INFO(QED_LEADING_HWFN(cdev), "Rx ETS is not supported\n");
}

static u8 qed_dcbnl_setall(struct qed_dev *cdev)
{
        struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
        struct qed_dcbx_set dcbx_set;
        struct qed_ptt *ptt;
        int rc;

        memset(&dcbx_set, 0, sizeof(dcbx_set));
        rc = qed_dcbx_get_config_params(hwfn, &dcbx_set);
        if (rc)
                return 1;

        ptt = qed_ptt_acquire(hwfn);
        if (!ptt)
                return 1;

        rc = qed_dcbx_config_params(hwfn, ptt, &dcbx_set, 1);

        qed_ptt_release(hwfn, ptt);

        return rc;
}

static int qed_dcbnl_setnumtcs(struct qed_dev *cdev, int tcid, u8 num)
{
        struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
        struct qed_dcbx_set dcbx_set;
        struct qed_ptt *ptt;
        int rc;

        DP_VERBOSE(hwfn, QED_MSG_DCB, "tcid = %d num = %d\n", tcid, num);
        memset(&dcbx_set, 0, sizeof(dcbx_set));
        rc = qed_dcbx_get_config_params(hwfn, &dcbx_set);
        if (rc)
                return 1;

        switch (tcid) {
        case DCB_NUMTCS_ATTR_PG:
                dcbx_set.override_flags |= QED_DCBX_OVERRIDE_ETS_CFG;
                dcbx_set.config.params.max_ets_tc = num;
                break;
        case DCB_NUMTCS_ATTR_PFC:
                dcbx_set.override_flags |= QED_DCBX_OVERRIDE_PFC_CFG;
                dcbx_set.config.params.pfc.max_tc = num;
                break;
        default:
                DP_INFO(hwfn, "Invalid tcid %d\n", tcid);
                return -EINVAL;
        }

        ptt = qed_ptt_acquire(hwfn);
        if (!ptt)
                return -EINVAL;

        rc = qed_dcbx_config_params(hwfn, ptt, &dcbx_set, 0);

        qed_ptt_release(hwfn, ptt);

        return 0;
}

static void qed_dcbnl_setpfcstate(struct qed_dev *cdev, u8 state)
{
        struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
        struct qed_dcbx_set dcbx_set;
        struct qed_ptt *ptt;
        int rc;

        DP_VERBOSE(hwfn, QED_MSG_DCB, "new state = %d\n", state);

        memset(&dcbx_set, 0, sizeof(dcbx_set));
        rc = qed_dcbx_get_config_params(hwfn, &dcbx_set);
        if (rc)
                return;

        dcbx_set.override_flags |= QED_DCBX_OVERRIDE_PFC_CFG;
        dcbx_set.config.params.pfc.enabled = !!state;

        ptt = qed_ptt_acquire(hwfn);
        if (!ptt)
                return;

        rc = qed_dcbx_config_params(hwfn, ptt, &dcbx_set, 0);

        qed_ptt_release(hwfn, ptt);
}

static int qed_dcbnl_getapp(struct qed_dev *cdev, u8 idtype, u16 idval)
{
        struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
        struct qed_dcbx_get *dcbx_info;
        struct qed_app_entry *entry;
        bool ethtype;
        u8 prio = 0;
        int i;

        dcbx_info = qed_dcbnl_get_dcbx(hwfn, QED_DCBX_OPERATIONAL_MIB);
        if (!dcbx_info)
                return -EINVAL;

        ethtype = !!(idtype == DCB_APP_IDTYPE_ETHTYPE);
        for (i = 0; i < QED_DCBX_MAX_APP_PROTOCOL; i++) {
                entry = &dcbx_info->operational.params.app_entry[i];
                if ((entry->ethtype == ethtype) && (entry->proto_id == idval)) {
                        prio = entry->prio;
                        break;
                }
        }

        if (i == QED_DCBX_MAX_APP_PROTOCOL) {
                DP_ERR(cdev, "App entry (%d, %d) not found\n", idtype, idval);
                kfree(dcbx_info);
                return -EINVAL;
        }

        kfree(dcbx_info);

        return prio;
}

static int qed_dcbnl_setapp(struct qed_dev *cdev,
                            u8 idtype, u16 idval, u8 pri_map)
{
        struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
        struct qed_dcbx_set dcbx_set;
        struct qed_app_entry *entry;
        struct qed_ptt *ptt;
        bool ethtype;
        int rc, i;

        memset(&dcbx_set, 0, sizeof(dcbx_set));
        rc = qed_dcbx_get_config_params(hwfn, &dcbx_set);
        if (rc)
                return -EINVAL;

        ethtype = !!(idtype == DCB_APP_IDTYPE_ETHTYPE);
        for (i = 0; i < QED_DCBX_MAX_APP_PROTOCOL; i++) {
                entry = &dcbx_set.config.params.app_entry[i];
                if ((entry->ethtype == ethtype) && (entry->proto_id == idval))
                        break;
                /* First empty slot */
                if (!entry->proto_id) {
                        dcbx_set.config.params.num_app_entries++;
                        break;
                }
        }

        if (i == QED_DCBX_MAX_APP_PROTOCOL) {
                DP_ERR(cdev, "App table is full\n");
                return -EBUSY;
        }

        dcbx_set.override_flags |= QED_DCBX_OVERRIDE_APP_CFG;
        dcbx_set.config.params.app_entry[i].ethtype = ethtype;
        dcbx_set.config.params.app_entry[i].proto_id = idval;
        dcbx_set.config.params.app_entry[i].prio = pri_map;

        ptt = qed_ptt_acquire(hwfn);
        if (!ptt)
                return -EBUSY;

        rc = qed_dcbx_config_params(hwfn, ptt, &dcbx_set, 0);

        qed_ptt_release(hwfn, ptt);

        return rc;
}

static u8 qed_dcbnl_setdcbx(struct qed_dev *cdev, u8 mode)
{
        struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
        struct qed_dcbx_set dcbx_set;
        struct qed_ptt *ptt;
        int rc;

        DP_VERBOSE(hwfn, QED_MSG_DCB, "new mode = %x\n", mode);

        if (!(mode & DCB_CAP_DCBX_VER_IEEE) &&
            !(mode & DCB_CAP_DCBX_VER_CEE) && !(mode & DCB_CAP_DCBX_STATIC)) {
                DP_INFO(hwfn, "Allowed modes are cee, ieee or static\n");
                return 1;
        }

        memset(&dcbx_set, 0, sizeof(dcbx_set));
        rc = qed_dcbx_get_config_params(hwfn, &dcbx_set);
        if (rc)
                return 1;

        dcbx_set.ver_num = 0;
        if (mode & DCB_CAP_DCBX_VER_CEE) {
                dcbx_set.ver_num |= DCBX_CONFIG_VERSION_CEE;
                dcbx_set.enabled = true;
        }

        if (mode & DCB_CAP_DCBX_VER_IEEE) {
                dcbx_set.ver_num |= DCBX_CONFIG_VERSION_IEEE;
                dcbx_set.enabled = true;
        }

        if (mode & DCB_CAP_DCBX_STATIC) {
                dcbx_set.ver_num |= DCBX_CONFIG_VERSION_STATIC;
                dcbx_set.enabled = true;
        }

        ptt = qed_ptt_acquire(hwfn);
        if (!ptt)
                return 1;

        rc = qed_dcbx_config_params(hwfn, ptt, &dcbx_set, 0);

        qed_ptt_release(hwfn, ptt);

        return rc;
}

static u8 qed_dcbnl_getfeatcfg(struct qed_dev *cdev, int featid, u8 *flags)
{
        struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
        struct qed_dcbx_get *dcbx_info;

        DP_VERBOSE(hwfn, QED_MSG_DCB, "Feature id  = %d\n", featid);
        dcbx_info = qed_dcbnl_get_dcbx(hwfn, QED_DCBX_OPERATIONAL_MIB);
        if (!dcbx_info)
                return 1;

        *flags = 0;
        switch (featid) {
        case DCB_FEATCFG_ATTR_PG:
                if (dcbx_info->operational.params.ets_enabled)
                        *flags = DCB_FEATCFG_ENABLE;
                else
                        *flags = DCB_FEATCFG_ERROR;
                break;
        case DCB_FEATCFG_ATTR_PFC:
                if (dcbx_info->operational.params.pfc.enabled)
                        *flags = DCB_FEATCFG_ENABLE;
                else
                        *flags = DCB_FEATCFG_ERROR;
                break;
        case DCB_FEATCFG_ATTR_APP:
                if (dcbx_info->operational.params.app_valid)
                        *flags = DCB_FEATCFG_ENABLE;
                else
                        *flags = DCB_FEATCFG_ERROR;
                break;
        default:
                DP_INFO(hwfn, "Invalid feature-ID %d\n", featid);
                kfree(dcbx_info);
                return 1;
        }

        DP_VERBOSE(hwfn, QED_MSG_DCB, "flags = %d\n", *flags);
        kfree(dcbx_info);

        return 0;
}

static u8 qed_dcbnl_setfeatcfg(struct qed_dev *cdev, int featid, u8 flags)
{
        struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
        struct qed_dcbx_set dcbx_set;
        bool enabled, willing;
        struct qed_ptt *ptt;
        int rc;

        DP_VERBOSE(hwfn, QED_MSG_DCB, "featid = %d flags = %d\n",
                   featid, flags);
        memset(&dcbx_set, 0, sizeof(dcbx_set));
        rc = qed_dcbx_get_config_params(hwfn, &dcbx_set);
        if (rc)
                return 1;

        enabled = !!(flags & DCB_FEATCFG_ENABLE);
        willing = !!(flags & DCB_FEATCFG_WILLING);
        switch (featid) {
        case DCB_FEATCFG_ATTR_PG:
                dcbx_set.override_flags |= QED_DCBX_OVERRIDE_ETS_CFG;
                dcbx_set.config.params.ets_enabled = enabled;
                dcbx_set.config.params.ets_willing = willing;
                break;
        case DCB_FEATCFG_ATTR_PFC:
                dcbx_set.override_flags |= QED_DCBX_OVERRIDE_PFC_CFG;
                dcbx_set.config.params.pfc.enabled = enabled;
                dcbx_set.config.params.pfc.willing = willing;
                break;
        case DCB_FEATCFG_ATTR_APP:
                dcbx_set.override_flags |= QED_DCBX_OVERRIDE_APP_CFG;
                dcbx_set.config.params.app_willing = willing;
                break;
        default:
                DP_INFO(hwfn, "Invalid feature-ID %d\n", featid);
                return 1;
        }

        ptt = qed_ptt_acquire(hwfn);
        if (!ptt)
                return 1;

        rc = qed_dcbx_config_params(hwfn, ptt, &dcbx_set, 0);

        qed_ptt_release(hwfn, ptt);

        return 0;
}

static int qed_dcbnl_peer_getappinfo(struct qed_dev *cdev,
                                     struct dcb_peer_app_info *info,
                                     u16 *app_count)
{
        struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
        struct qed_dcbx_get *dcbx_info;

        dcbx_info = qed_dcbnl_get_dcbx(hwfn, QED_DCBX_REMOTE_MIB);
        if (!dcbx_info)
                return -EINVAL;

        info->willing = dcbx_info->remote.params.app_willing;
        info->error = dcbx_info->remote.params.app_error;
        *app_count = dcbx_info->remote.params.num_app_entries;
        kfree(dcbx_info);

        return 0;
}

static int qed_dcbnl_peer_getapptable(struct qed_dev *cdev,
                                      struct dcb_app *table)
{
        struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
        struct qed_dcbx_get *dcbx_info;
        int i;

        dcbx_info = qed_dcbnl_get_dcbx(hwfn, QED_DCBX_REMOTE_MIB);
        if (!dcbx_info)
                return -EINVAL;

        for (i = 0; i < dcbx_info->remote.params.num_app_entries; i++) {
                if (dcbx_info->remote.params.app_entry[i].ethtype)
                        table[i].selector = DCB_APP_IDTYPE_ETHTYPE;
                else
                        table[i].selector = DCB_APP_IDTYPE_PORTNUM;
                table[i].priority = dcbx_info->remote.params.app_entry[i].prio;
                table[i].protocol =
                    dcbx_info->remote.params.app_entry[i].proto_id;
        }

        kfree(dcbx_info);

        return 0;
}

static int qed_dcbnl_cee_peer_getpfc(struct qed_dev *cdev, struct cee_pfc *pfc)
{
        struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
        struct qed_dcbx_get *dcbx_info;
        int i;

        dcbx_info = qed_dcbnl_get_dcbx(hwfn, QED_DCBX_REMOTE_MIB);
        if (!dcbx_info)
                return -EINVAL;

        for (i = 0; i < QED_MAX_PFC_PRIORITIES; i++)
                if (dcbx_info->remote.params.pfc.prio[i])
                        pfc->pfc_en |= BIT(i);

        pfc->tcs_supported = dcbx_info->remote.params.pfc.max_tc;
        DP_VERBOSE(hwfn, QED_MSG_DCB, "pfc state = %d tcs_supported = %d\n",
                   pfc->pfc_en, pfc->tcs_supported);
        kfree(dcbx_info);

        return 0;
}

static int qed_dcbnl_cee_peer_getpg(struct qed_dev *cdev, struct cee_pg *pg)
{
        struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
        struct qed_dcbx_get *dcbx_info;
        int i;

        dcbx_info = qed_dcbnl_get_dcbx(hwfn, QED_DCBX_REMOTE_MIB);
        if (!dcbx_info)
                return -EINVAL;

        pg->willing = dcbx_info->remote.params.ets_willing;
        for (i = 0; i < QED_MAX_PFC_PRIORITIES; i++) {
                pg->pg_bw[i] = dcbx_info->remote.params.ets_tc_bw_tbl[i];
                pg->prio_pg[i] = dcbx_info->remote.params.ets_pri_tc_tbl[i];
        }

        DP_VERBOSE(hwfn, QED_MSG_DCB, "willing = %d", pg->willing);
        kfree(dcbx_info);

        return 0;
}

static int qed_dcbnl_get_ieee_pfc(struct qed_dev *cdev,
                                  struct ieee_pfc *pfc, bool remote)
{
        struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
        struct qed_dcbx_params *params;
        struct qed_dcbx_get *dcbx_info;
        int rc, i;

        dcbx_info = qed_dcbnl_get_dcbx(hwfn, QED_DCBX_OPERATIONAL_MIB);
        if (!dcbx_info)
                return -EINVAL;

        if (!dcbx_info->operational.ieee) {
                DP_INFO(hwfn, "DCBX is not enabled/operational in IEEE mode\n");
                kfree(dcbx_info);
                return -EINVAL;
        }

        if (remote) {
                memset(dcbx_info, 0, sizeof(*dcbx_info));
                rc = qed_dcbx_query_params(hwfn, dcbx_info,
                                           QED_DCBX_REMOTE_MIB);
                if (rc) {
                        kfree(dcbx_info);
                        return -EINVAL;
                }

                params = &dcbx_info->remote.params;
        } else {
                params = &dcbx_info->operational.params;
        }

        pfc->pfc_cap = params->pfc.max_tc;
        pfc->pfc_en = 0;
        for (i = 0; i < QED_MAX_PFC_PRIORITIES; i++)
                if (params->pfc.prio[i])
                        pfc->pfc_en |= BIT(i);

        kfree(dcbx_info);

        return 0;
}

static int qed_dcbnl_ieee_getpfc(struct qed_dev *cdev, struct ieee_pfc *pfc)
{
        return qed_dcbnl_get_ieee_pfc(cdev, pfc, false);
}

static int qed_dcbnl_ieee_setpfc(struct qed_dev *cdev, struct ieee_pfc *pfc)
{
        struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
        struct qed_dcbx_get *dcbx_info;
        struct qed_dcbx_set dcbx_set;
        struct qed_ptt *ptt;
        int rc, i;

        dcbx_info = qed_dcbnl_get_dcbx(hwfn, QED_DCBX_OPERATIONAL_MIB);
        if (!dcbx_info)
                return -EINVAL;

        if (!dcbx_info->operational.ieee) {
                DP_INFO(hwfn, "DCBX is not enabled/operational in IEEE mode\n");
                kfree(dcbx_info);
                return -EINVAL;
        }

        kfree(dcbx_info);

        memset(&dcbx_set, 0, sizeof(dcbx_set));
        rc = qed_dcbx_get_config_params(hwfn, &dcbx_set);
        if (rc)
                return -EINVAL;

        dcbx_set.override_flags |= QED_DCBX_OVERRIDE_PFC_CFG;
        for (i = 0; i < QED_MAX_PFC_PRIORITIES; i++)
                dcbx_set.config.params.pfc.prio[i] = !!(pfc->pfc_en & BIT(i));

        dcbx_set.config.params.pfc.max_tc = pfc->pfc_cap;

        ptt = qed_ptt_acquire(hwfn);
        if (!ptt)
                return -EINVAL;

        rc = qed_dcbx_config_params(hwfn, ptt, &dcbx_set, 0);

        qed_ptt_release(hwfn, ptt);

        return rc;
}

static int qed_dcbnl_get_ieee_ets(struct qed_dev *cdev,
                                  struct ieee_ets *ets, bool remote)
{
        struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
        struct qed_dcbx_get *dcbx_info;
        struct qed_dcbx_params *params;
        int rc;

        dcbx_info = qed_dcbnl_get_dcbx(hwfn, QED_DCBX_OPERATIONAL_MIB);
        if (!dcbx_info)
                return -EINVAL;

        if (!dcbx_info->operational.ieee) {
                DP_INFO(hwfn, "DCBX is not enabled/operational in IEEE mode\n");
                kfree(dcbx_info);
                return -EINVAL;
        }

        if (remote) {
                memset(dcbx_info, 0, sizeof(*dcbx_info));
                rc = qed_dcbx_query_params(hwfn, dcbx_info,
                                           QED_DCBX_REMOTE_MIB);
                if (rc) {
                        kfree(dcbx_info);
                        return -EINVAL;
                }

                params = &dcbx_info->remote.params;
        } else {
                params = &dcbx_info->operational.params;
        }

        ets->ets_cap = params->max_ets_tc;
        ets->willing = params->ets_willing;
        ets->cbs = params->ets_cbs;
        memcpy(ets->tc_tx_bw, params->ets_tc_bw_tbl, sizeof(ets->tc_tx_bw));
        memcpy(ets->tc_tsa, params->ets_tc_tsa_tbl, sizeof(ets->tc_tsa));
        memcpy(ets->prio_tc, params->ets_pri_tc_tbl, sizeof(ets->prio_tc));
        kfree(dcbx_info);

        return 0;
}

static int qed_dcbnl_ieee_getets(struct qed_dev *cdev, struct ieee_ets *ets)
{
        return qed_dcbnl_get_ieee_ets(cdev, ets, false);
}

static int qed_dcbnl_ieee_setets(struct qed_dev *cdev, struct ieee_ets *ets)
{
        struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
        struct qed_dcbx_get *dcbx_info;
        struct qed_dcbx_set dcbx_set;
        struct qed_ptt *ptt;
        int rc;

        dcbx_info = qed_dcbnl_get_dcbx(hwfn, QED_DCBX_OPERATIONAL_MIB);
        if (!dcbx_info)
                return -EINVAL;

        if (!dcbx_info->operational.ieee) {
                DP_INFO(hwfn, "DCBX is not enabled/operational in IEEE mode\n");
                kfree(dcbx_info);
                return -EINVAL;
        }

        kfree(dcbx_info);

        memset(&dcbx_set, 0, sizeof(dcbx_set));
        rc = qed_dcbx_get_config_params(hwfn, &dcbx_set);
        if (rc)
                return -EINVAL;

        dcbx_set.override_flags |= QED_DCBX_OVERRIDE_ETS_CFG;
        dcbx_set.config.params.max_ets_tc = ets->ets_cap;
        dcbx_set.config.params.ets_willing = ets->willing;
        dcbx_set.config.params.ets_cbs = ets->cbs;
        memcpy(dcbx_set.config.params.ets_tc_bw_tbl, ets->tc_tx_bw,
               sizeof(ets->tc_tx_bw));
        memcpy(dcbx_set.config.params.ets_tc_tsa_tbl, ets->tc_tsa,
               sizeof(ets->tc_tsa));
        memcpy(dcbx_set.config.params.ets_pri_tc_tbl, ets->prio_tc,
               sizeof(ets->prio_tc));

        ptt = qed_ptt_acquire(hwfn);
        if (!ptt)
                return -EINVAL;

        rc = qed_dcbx_config_params(hwfn, ptt, &dcbx_set, 0);

        qed_ptt_release(hwfn, ptt);

        return rc;
}

static int
qed_dcbnl_ieee_peer_getets(struct qed_dev *cdev, struct ieee_ets *ets)
{
        return qed_dcbnl_get_ieee_ets(cdev, ets, true);
}

static int
qed_dcbnl_ieee_peer_getpfc(struct qed_dev *cdev, struct ieee_pfc *pfc)
{
        return qed_dcbnl_get_ieee_pfc(cdev, pfc, true);
}

static int qed_get_sf_ieee_value(u8 selector, u8 *sf_ieee)
{
        switch (selector) {
        case IEEE_8021QAZ_APP_SEL_ETHERTYPE:
                *sf_ieee = QED_DCBX_SF_IEEE_ETHTYPE;
                break;
        case IEEE_8021QAZ_APP_SEL_STREAM:
                *sf_ieee = QED_DCBX_SF_IEEE_TCP_PORT;
                break;
        case IEEE_8021QAZ_APP_SEL_DGRAM:
                *sf_ieee = QED_DCBX_SF_IEEE_UDP_PORT;
                break;
        case IEEE_8021QAZ_APP_SEL_ANY:
                *sf_ieee = QED_DCBX_SF_IEEE_TCP_UDP_PORT;
                break;
        default:
                return -EINVAL;
        }

        return 0;
}

static int qed_dcbnl_ieee_getapp(struct qed_dev *cdev, struct dcb_app *app)
{
        struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
        struct qed_dcbx_get *dcbx_info;
        struct qed_app_entry *entry;
        u8 prio = 0;
        u8 sf_ieee;
        int i;

        DP_VERBOSE(hwfn, QED_MSG_DCB, "selector = %d protocol = %d\n",
                   app->selector, app->protocol);

        if (qed_get_sf_ieee_value(app->selector, &sf_ieee)) {
                DP_INFO(cdev, "Invalid selector field value %d\n",
                        app->selector);
                return -EINVAL;
        }

        dcbx_info = qed_dcbnl_get_dcbx(hwfn, QED_DCBX_OPERATIONAL_MIB);
        if (!dcbx_info)
                return -EINVAL;

        if (!dcbx_info->operational.ieee) {
                DP_INFO(hwfn, "DCBX is not enabled/operational in IEEE mode\n");
                kfree(dcbx_info);
                return -EINVAL;
        }

        for (i = 0; i < QED_DCBX_MAX_APP_PROTOCOL; i++) {
                entry = &dcbx_info->operational.params.app_entry[i];
                if ((entry->sf_ieee == sf_ieee) &&
                    (entry->proto_id == app->protocol)) {
                        prio = entry->prio;
                        break;
                }
        }

        if (i == QED_DCBX_MAX_APP_PROTOCOL) {
                DP_ERR(cdev, "App entry (%d, %d) not found\n", app->selector,
                       app->protocol);
                kfree(dcbx_info);
                return -EINVAL;
        }

        app->priority = ffs(prio) - 1;

        kfree(dcbx_info);

        return 0;
}

static int qed_dcbnl_ieee_setapp(struct qed_dev *cdev, struct dcb_app *app)
{
        struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
        struct qed_dcbx_get *dcbx_info;
        struct qed_dcbx_set dcbx_set;
        struct qed_app_entry *entry;
        struct qed_ptt *ptt;
        u8 sf_ieee;
        int rc, i;

        DP_VERBOSE(hwfn, QED_MSG_DCB, "selector = %d protocol = %d pri = %d\n",
                   app->selector, app->protocol, app->priority);
        if (app->priority >= QED_MAX_PFC_PRIORITIES) {
                DP_INFO(hwfn, "Invalid priority %d\n", app->priority);
                return -EINVAL;
        }

        if (qed_get_sf_ieee_value(app->selector, &sf_ieee)) {
                DP_INFO(cdev, "Invalid selector field value %d\n",
                        app->selector);
                return -EINVAL;
        }

        dcbx_info = qed_dcbnl_get_dcbx(hwfn, QED_DCBX_OPERATIONAL_MIB);
        if (!dcbx_info)
                return -EINVAL;

        if (!dcbx_info->operational.ieee) {
                DP_INFO(hwfn, "DCBX is not enabled/operational in IEEE mode\n");
                kfree(dcbx_info);
                return -EINVAL;
        }

        kfree(dcbx_info);

        memset(&dcbx_set, 0, sizeof(dcbx_set));
        rc = qed_dcbx_get_config_params(hwfn, &dcbx_set);
        if (rc)
                return -EINVAL;

        for (i = 0; i < QED_DCBX_MAX_APP_PROTOCOL; i++) {
                entry = &dcbx_set.config.params.app_entry[i];
                if ((entry->sf_ieee == sf_ieee) &&
                    (entry->proto_id == app->protocol))
                        break;
                /* First empty slot */
                if (!entry->proto_id) {
                        dcbx_set.config.params.num_app_entries++;
                        break;
                }
        }

        if (i == QED_DCBX_MAX_APP_PROTOCOL) {
                DP_ERR(cdev, "App table is full\n");
                return -EBUSY;
        }

        dcbx_set.override_flags |= QED_DCBX_OVERRIDE_APP_CFG;
        dcbx_set.config.params.app_entry[i].sf_ieee = sf_ieee;
        dcbx_set.config.params.app_entry[i].proto_id = app->protocol;
        dcbx_set.config.params.app_entry[i].prio = BIT(app->priority);

        ptt = qed_ptt_acquire(hwfn);
        if (!ptt)
                return -EBUSY;

        rc = qed_dcbx_config_params(hwfn, ptt, &dcbx_set, 0);

        qed_ptt_release(hwfn, ptt);

        return rc;
}

const struct qed_eth_dcbnl_ops qed_dcbnl_ops_pass = {
        .getstate = qed_dcbnl_getstate,
        .setstate = qed_dcbnl_setstate,
        .getpgtccfgtx = qed_dcbnl_getpgtccfgtx,
        .getpgbwgcfgtx = qed_dcbnl_getpgbwgcfgtx,
        .getpgtccfgrx = qed_dcbnl_getpgtccfgrx,
        .getpgbwgcfgrx = qed_dcbnl_getpgbwgcfgrx,
        .getpfccfg = qed_dcbnl_getpfccfg,
        .setpfccfg = qed_dcbnl_setpfccfg,
        .getcap = qed_dcbnl_getcap,
        .getnumtcs = qed_dcbnl_getnumtcs,
        .getpfcstate = qed_dcbnl_getpfcstate,
        .getdcbx = qed_dcbnl_getdcbx,
        .setpgtccfgtx = qed_dcbnl_setpgtccfgtx,
        .setpgtccfgrx = qed_dcbnl_setpgtccfgrx,
        .setpgbwgcfgtx = qed_dcbnl_setpgbwgcfgtx,
        .setpgbwgcfgrx = qed_dcbnl_setpgbwgcfgrx,
        .setall = qed_dcbnl_setall,
        .setnumtcs = qed_dcbnl_setnumtcs,
        .setpfcstate = qed_dcbnl_setpfcstate,
        .setapp = qed_dcbnl_setapp,
        .setdcbx = qed_dcbnl_setdcbx,
        .setfeatcfg = qed_dcbnl_setfeatcfg,
        .getfeatcfg = qed_dcbnl_getfeatcfg,
        .getapp = qed_dcbnl_getapp,
        .peer_getappinfo = qed_dcbnl_peer_getappinfo,
        .peer_getapptable = qed_dcbnl_peer_getapptable,
        .cee_peer_getpfc = qed_dcbnl_cee_peer_getpfc,
        .cee_peer_getpg = qed_dcbnl_cee_peer_getpg,
        .ieee_getpfc = qed_dcbnl_ieee_getpfc,
        .ieee_setpfc = qed_dcbnl_ieee_setpfc,
        .ieee_getets = qed_dcbnl_ieee_getets,
        .ieee_setets = qed_dcbnl_ieee_setets,
        .ieee_peer_getpfc = qed_dcbnl_ieee_peer_getpfc,
        .ieee_peer_getets = qed_dcbnl_ieee_peer_getets,
        .ieee_getapp = qed_dcbnl_ieee_getapp,
        .ieee_setapp = qed_dcbnl_ieee_setapp,
};

#endif