bfa_fcs_lport.c

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/*
 * Copyright (c) 2005-2010 Brocade Communications Systems, Inc.
 * All rights reserved
 * www.brocade.com
 *
 * Linux driver for Brocade Fibre Channel Host Bus Adapter.
 *
 * This program is free software; you can redistribute it and/or modify it
 * under the terms of the GNU General Public License (GPL) Version 2 as
 * published by the Free Software Foundation
 *
 * This program is distributed in the hope that it will be useful, but
 * WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * General Public License for more details.
 */

#include "bfad_drv.h"
#include "bfad_im.h"
#include "bfa_fcs.h"
#include "bfa_fcbuild.h"
#include "bfa_fc.h"

BFA_TRC_FILE(FCS, PORT);

/*
 * ALPA to LIXA bitmap mapping
 *
 * ALPA 0x00 (Word 0, Bit 30) is invalid for N_Ports. Also Word 0 Bit 31
 * is for L_bit (login required) and is filled as ALPA 0x00 here.
 */
static const u8 loop_alpa_map[] = {
    0x00, 0x00, 0x01, 0x02, 0x04, 0x08, 0x0F, 0x10, /* Word 0 Bits 31..24 */
    0x17, 0x18, 0x1B, 0x1D, 0x1E, 0x1F, 0x23, 0x25, /* Word 0 Bits 23..16 */
    0x26, 0x27, 0x29, 0x2A, 0x2B, 0x2C, 0x2D, 0x2E, /* Word 0 Bits 15..08 */
    0x31, 0x32, 0x33, 0x34, 0x35, 0x36, 0x39, 0x3A, /* Word 0 Bits 07..00 */

    0x3C, 0x43, 0x45, 0x46, 0x47, 0x49, 0x4A, 0x4B, /* Word 1 Bits 31..24 */
    0x4C, 0x4D, 0x4E, 0x51, 0x52, 0x53, 0x54, 0x55, /* Word 1 Bits 23..16 */
    0x56, 0x59, 0x5A, 0x5C, 0x63, 0x65, 0x66, 0x67, /* Word 1 Bits 15..08 */
    0x69, 0x6A, 0x6B, 0x6C, 0x6D, 0x6E, 0x71, 0x72, /* Word 1 Bits 07..00 */

    0x73, 0x74, 0x75, 0x76, 0x79, 0x7A, 0x7C, 0x80, /* Word 2 Bits 31..24 */
    0x81, 0x82, 0x84, 0x88, 0x8F, 0x90, 0x97, 0x98, /* Word 2 Bits 23..16 */
    0x9B, 0x9D, 0x9E, 0x9F, 0xA3, 0xA5, 0xA6, 0xA7, /* Word 2 Bits 15..08 */
    0xA9, 0xAA, 0xAB, 0xAC, 0xAD, 0xAE, 0xB1, 0xB2, /* Word 2 Bits 07..00 */

    0xB3, 0xB4, 0xB5, 0xB6, 0xB9, 0xBA, 0xBC, 0xC3, /* Word 3 Bits 31..24 */
    0xC5, 0xC6, 0xC7, 0xC9, 0xCA, 0xCB, 0xCC, 0xCD, /* Word 3 Bits 23..16 */
    0xCE, 0xD1, 0xD2, 0xD3, 0xD4, 0xD5, 0xD6, 0xD9, /* Word 3 Bits 15..08 */
    0xDA, 0xDC, 0xE0, 0xE1, 0xE2, 0xE4, 0xE8, 0xEF, /* Word 3 Bits 07..00 */
};

static void     bfa_fcs_lport_send_ls_rjt(struct bfa_fcs_lport_s *port,
                     struct fchs_s *rx_fchs, u8 reason_code,
                     u8 reason_code_expl);
static void     bfa_fcs_lport_plogi(struct bfa_fcs_lport_s *port,
            struct fchs_s *rx_fchs, struct fc_logi_s *plogi);
static void     bfa_fcs_lport_online_actions(struct bfa_fcs_lport_s *port);
static void     bfa_fcs_lport_offline_actions(struct bfa_fcs_lport_s *port);
static void     bfa_fcs_lport_unknown_init(struct bfa_fcs_lport_s *port);
static void     bfa_fcs_lport_unknown_online(struct bfa_fcs_lport_s *port);
static void     bfa_fcs_lport_unknown_offline(struct bfa_fcs_lport_s *port);
static void     bfa_fcs_lport_deleted(struct bfa_fcs_lport_s *port);
static void     bfa_fcs_lport_echo(struct bfa_fcs_lport_s *port,
            struct fchs_s *rx_fchs,
            struct fc_echo_s *echo, u16 len);
static void     bfa_fcs_lport_rnid(struct bfa_fcs_lport_s *port,
            struct fchs_s *rx_fchs,
            struct fc_rnid_cmd_s *rnid, u16 len);
static void     bfa_fs_port_get_gen_topo_data(struct bfa_fcs_lport_s *port,
            struct fc_rnid_general_topology_data_s *gen_topo_data);

static void bfa_fcs_lport_fab_init(struct bfa_fcs_lport_s *port);
static void bfa_fcs_lport_fab_online(struct bfa_fcs_lport_s *port);
static void bfa_fcs_lport_fab_offline(struct bfa_fcs_lport_s *port);

static void bfa_fcs_lport_n2n_init(struct bfa_fcs_lport_s *port);
static void bfa_fcs_lport_n2n_online(struct bfa_fcs_lport_s *port);
static void bfa_fcs_lport_n2n_offline(struct bfa_fcs_lport_s *port);

static void bfa_fcs_lport_loop_init(struct bfa_fcs_lport_s *port);
static void bfa_fcs_lport_loop_online(struct bfa_fcs_lport_s *port);
static void bfa_fcs_lport_loop_offline(struct bfa_fcs_lport_s *port);

static struct {
    void        (*init) (struct bfa_fcs_lport_s *port);
    void        (*online) (struct bfa_fcs_lport_s *port);
    void        (*offline) (struct bfa_fcs_lport_s *port);
} __port_action[] = {
    {
    bfa_fcs_lport_unknown_init, bfa_fcs_lport_unknown_online,
            bfa_fcs_lport_unknown_offline}, {
    bfa_fcs_lport_fab_init, bfa_fcs_lport_fab_online,
            bfa_fcs_lport_fab_offline}, {
    bfa_fcs_lport_n2n_init, bfa_fcs_lport_n2n_online,
            bfa_fcs_lport_n2n_offline}, {
    bfa_fcs_lport_loop_init, bfa_fcs_lport_loop_online,
            bfa_fcs_lport_loop_offline},
    };

/*
 *  fcs_port_sm FCS logical port state machine
 */

enum bfa_fcs_lport_event {
    BFA_FCS_PORT_SM_CREATE = 1,
    BFA_FCS_PORT_SM_ONLINE = 2,
    BFA_FCS_PORT_SM_OFFLINE = 3,
    BFA_FCS_PORT_SM_DELETE = 4,
    BFA_FCS_PORT_SM_DELRPORT = 5,
    BFA_FCS_PORT_SM_STOP = 6,
};

static void     bfa_fcs_lport_sm_uninit(struct bfa_fcs_lport_s *port,
                    enum bfa_fcs_lport_event event);
static void     bfa_fcs_lport_sm_init(struct bfa_fcs_lport_s *port,
                    enum bfa_fcs_lport_event event);
static void     bfa_fcs_lport_sm_online(struct bfa_fcs_lport_s *port,
                    enum bfa_fcs_lport_event event);
static void     bfa_fcs_lport_sm_offline(struct bfa_fcs_lport_s *port,
                    enum bfa_fcs_lport_event event);
static void     bfa_fcs_lport_sm_deleting(struct bfa_fcs_lport_s *port,
                    enum bfa_fcs_lport_event event);
static void bfa_fcs_lport_sm_stopping(struct bfa_fcs_lport_s *port,
                    enum bfa_fcs_lport_event event);

static void
bfa_fcs_lport_sm_uninit(
    struct bfa_fcs_lport_s *port,
    enum bfa_fcs_lport_event event)
{
    bfa_trc(port->fcs, port->port_cfg.pwwn);
    bfa_trc(port->fcs, event);

    switch (event) {
    case BFA_FCS_PORT_SM_CREATE:
        bfa_sm_set_state(port, bfa_fcs_lport_sm_init);
        break;

    default:
        bfa_sm_fault(port->fcs, event);
    }
}

static void
bfa_fcs_lport_sm_init(struct bfa_fcs_lport_s *port,
            enum bfa_fcs_lport_event event)
{
    bfa_trc(port->fcs, port->port_cfg.pwwn);
    bfa_trc(port->fcs, event);

    switch (event) {
    case BFA_FCS_PORT_SM_ONLINE:
        bfa_sm_set_state(port, bfa_fcs_lport_sm_online);
        bfa_fcs_lport_online_actions(port);
        break;

    case BFA_FCS_PORT_SM_DELETE:
        bfa_sm_set_state(port, bfa_fcs_lport_sm_uninit);
        bfa_fcs_lport_deleted(port);
        break;

    case BFA_FCS_PORT_SM_STOP:
        /* If vport - send completion call back */
        if (port->vport)
            bfa_fcs_vport_stop_comp(port->vport);
        else
            bfa_wc_down(&(port->fabric->stop_wc));
        break;

    case BFA_FCS_PORT_SM_OFFLINE:
        break;

    default:
        bfa_sm_fault(port->fcs, event);
    }
}

static void
bfa_fcs_lport_sm_online(
    struct bfa_fcs_lport_s *port,
    enum bfa_fcs_lport_event event)
{
    struct bfa_fcs_rport_s *rport;
    struct list_head        *qe, *qen;

    bfa_trc(port->fcs, port->port_cfg.pwwn);
    bfa_trc(port->fcs, event);

    switch (event) {
    case BFA_FCS_PORT_SM_OFFLINE:
        bfa_sm_set_state(port, bfa_fcs_lport_sm_offline);
        bfa_fcs_lport_offline_actions(port);
        break;

    case BFA_FCS_PORT_SM_STOP:
        __port_action[port->fabric->fab_type].offline(port);

        if (port->num_rports == 0) {
            bfa_sm_set_state(port, bfa_fcs_lport_sm_init);
            /* If vport - send completion call back */
            if (port->vport)
                bfa_fcs_vport_stop_comp(port->vport);
            else
                bfa_wc_down(&(port->fabric->stop_wc));
        } else {
            bfa_sm_set_state(port, bfa_fcs_lport_sm_stopping);
            list_for_each_safe(qe, qen, &port->rport_q) {
                rport = (struct bfa_fcs_rport_s *) qe;
                bfa_sm_send_event(rport, RPSM_EVENT_DELETE);
            }
        }
        break;

    case BFA_FCS_PORT_SM_DELETE:

        __port_action[port->fabric->fab_type].offline(port);

        if (port->num_rports == 0) {
            bfa_sm_set_state(port, bfa_fcs_lport_sm_uninit);
            bfa_fcs_lport_deleted(port);
        } else {
            bfa_sm_set_state(port, bfa_fcs_lport_sm_deleting);
            list_for_each_safe(qe, qen, &port->rport_q) {
                rport = (struct bfa_fcs_rport_s *) qe;
                bfa_sm_send_event(rport, RPSM_EVENT_DELETE);
            }
        }
        break;

    case BFA_FCS_PORT_SM_DELRPORT:
        break;

    default:
        bfa_sm_fault(port->fcs, event);
    }
}

static void
bfa_fcs_lport_sm_offline(
    struct bfa_fcs_lport_s *port,
    enum bfa_fcs_lport_event event)
{
    struct bfa_fcs_rport_s *rport;
    struct list_head        *qe, *qen;

    bfa_trc(port->fcs, port->port_cfg.pwwn);
    bfa_trc(port->fcs, event);

    switch (event) {
    case BFA_FCS_PORT_SM_ONLINE:
        bfa_sm_set_state(port, bfa_fcs_lport_sm_online);
        bfa_fcs_lport_online_actions(port);
        break;

    case BFA_FCS_PORT_SM_STOP:
        if (port->num_rports == 0) {
            bfa_sm_set_state(port, bfa_fcs_lport_sm_init);
            /* If vport - send completion call back */
            if (port->vport)
                bfa_fcs_vport_stop_comp(port->vport);
            else
                bfa_wc_down(&(port->fabric->stop_wc));
        } else {
            bfa_sm_set_state(port, bfa_fcs_lport_sm_stopping);
            list_for_each_safe(qe, qen, &port->rport_q) {
                rport = (struct bfa_fcs_rport_s *) qe;
                bfa_sm_send_event(rport, RPSM_EVENT_DELETE);
            }
        }
        break;

    case BFA_FCS_PORT_SM_DELETE:
        if (port->num_rports == 0) {
            bfa_sm_set_state(port, bfa_fcs_lport_sm_uninit);
            bfa_fcs_lport_deleted(port);
        } else {
            bfa_sm_set_state(port, bfa_fcs_lport_sm_deleting);
            list_for_each_safe(qe, qen, &port->rport_q) {
                rport = (struct bfa_fcs_rport_s *) qe;
                bfa_sm_send_event(rport, RPSM_EVENT_DELETE);
            }
        }
        break;

    case BFA_FCS_PORT_SM_DELRPORT:
    case BFA_FCS_PORT_SM_OFFLINE:
        break;

    default:
        bfa_sm_fault(port->fcs, event);
    }
}

static void
bfa_fcs_lport_sm_stopping(struct bfa_fcs_lport_s *port,
              enum bfa_fcs_lport_event event)
{
    bfa_trc(port->fcs, port->port_cfg.pwwn);
    bfa_trc(port->fcs, event);

    switch (event) {
    case BFA_FCS_PORT_SM_DELRPORT:
        if (port->num_rports == 0) {
            bfa_sm_set_state(port, bfa_fcs_lport_sm_init);
            /* If vport - send completion call back */
            if (port->vport)
                bfa_fcs_vport_stop_comp(port->vport);
            else
                bfa_wc_down(&(port->fabric->stop_wc));
        }
        break;

    default:
        bfa_sm_fault(port->fcs, event);
    }
}

static void
bfa_fcs_lport_sm_deleting(
    struct bfa_fcs_lport_s *port,
    enum bfa_fcs_lport_event event)
{
    bfa_trc(port->fcs, port->port_cfg.pwwn);
    bfa_trc(port->fcs, event);

    switch (event) {
    case BFA_FCS_PORT_SM_DELRPORT:
        if (port->num_rports == 0) {
            bfa_sm_set_state(port, bfa_fcs_lport_sm_uninit);
            bfa_fcs_lport_deleted(port);
        }
        break;

    default:
        bfa_sm_fault(port->fcs, event);
    }
}

/*
 *  fcs_port_pvt
 */

/*
 * Send AEN notification
 */
static void
bfa_fcs_lport_aen_post(struct bfa_fcs_lport_s *port,
            enum bfa_lport_aen_event event)
{
    struct bfad_s *bfad = (struct bfad_s *)port->fabric->fcs->bfad;
    struct bfa_aen_entry_s  *aen_entry;

    bfad_get_aen_entry(bfad, aen_entry);
    if (!aen_entry)
        return;

    aen_entry->aen_data.lport.vf_id = port->fabric->vf_id;
    aen_entry->aen_data.lport.roles = port->port_cfg.roles;
    aen_entry->aen_data.lport.ppwwn = bfa_fcs_lport_get_pwwn(
                    bfa_fcs_get_base_port(port->fcs));
    aen_entry->aen_data.lport.lpwwn = bfa_fcs_lport_get_pwwn(port);

    /* Send the AEN notification */
    bfad_im_post_vendor_event(aen_entry, bfad, ++port->fcs->fcs_aen_seq,
                  BFA_AEN_CAT_LPORT, event);
}

/*
 * Send a LS reject
 */
static void
bfa_fcs_lport_send_ls_rjt(struct bfa_fcs_lport_s *port, struct fchs_s *rx_fchs,
             u8 reason_code, u8 reason_code_expl)
{
    struct fchs_s   fchs;
    struct bfa_fcxp_s *fcxp;
    struct bfa_rport_s *bfa_rport = NULL;
    int     len;

    bfa_trc(port->fcs, rx_fchs->d_id);
    bfa_trc(port->fcs, rx_fchs->s_id);

    fcxp = bfa_fcs_fcxp_alloc(port->fcs, BFA_FALSE);
    if (!fcxp)
        return;

    len = fc_ls_rjt_build(&fchs, bfa_fcxp_get_reqbuf(fcxp),
                  rx_fchs->s_id, bfa_fcs_lport_get_fcid(port),
                  rx_fchs->ox_id, reason_code, reason_code_expl);

    bfa_fcxp_send(fcxp, bfa_rport, port->fabric->vf_id, port->lp_tag,
              BFA_FALSE, FC_CLASS_3, len, &fchs, NULL, NULL,
              FC_MAX_PDUSZ, 0);
}

/*
 * Send a FCCT Reject
 */
static void
bfa_fcs_lport_send_fcgs_rjt(struct bfa_fcs_lport_s *port,
    struct fchs_s *rx_fchs, u8 reason_code, u8 reason_code_expl)
{
    struct fchs_s   fchs;
    struct bfa_fcxp_s *fcxp;
    struct bfa_rport_s *bfa_rport = NULL;
    int             len;
    struct ct_hdr_s *rx_cthdr = (struct ct_hdr_s *)(rx_fchs + 1);
    struct ct_hdr_s *ct_hdr;

    bfa_trc(port->fcs, rx_fchs->d_id);
    bfa_trc(port->fcs, rx_fchs->s_id);

    fcxp = bfa_fcs_fcxp_alloc(port->fcs, BFA_FALSE);
    if (!fcxp)
        return;

    ct_hdr = bfa_fcxp_get_reqbuf(fcxp);
    ct_hdr->gs_type = rx_cthdr->gs_type;
    ct_hdr->gs_sub_type = rx_cthdr->gs_sub_type;

    len = fc_gs_rjt_build(&fchs, ct_hdr, rx_fchs->s_id,
            bfa_fcs_lport_get_fcid(port),
            rx_fchs->ox_id, reason_code, reason_code_expl);

    bfa_fcxp_send(fcxp, bfa_rport, port->fabric->vf_id, port->lp_tag,
            BFA_FALSE, FC_CLASS_3, len, &fchs, NULL, NULL,
            FC_MAX_PDUSZ, 0);
}

/*
 * Process incoming plogi from a remote port.
 */
static void
bfa_fcs_lport_plogi(struct bfa_fcs_lport_s *port,
        struct fchs_s *rx_fchs, struct fc_logi_s *plogi)
{
    struct bfa_fcs_rport_s *rport;

    bfa_trc(port->fcs, rx_fchs->d_id);
    bfa_trc(port->fcs, rx_fchs->s_id);

    /*
     * If min cfg mode is enabled, drop any incoming PLOGIs
     */
    if (__fcs_min_cfg(port->fcs)) {
        bfa_trc(port->fcs, rx_fchs->s_id);
        return;
    }

    if (fc_plogi_parse(rx_fchs) != FC_PARSE_OK) {
        bfa_trc(port->fcs, rx_fchs->s_id);
        /*
         * send a LS reject
         */
        bfa_fcs_lport_send_ls_rjt(port, rx_fchs,
                    FC_LS_RJT_RSN_PROTOCOL_ERROR,
                    FC_LS_RJT_EXP_SPARMS_ERR_OPTIONS);
        return;
    }

    /*
     * Direct Attach P2P mode : verify address assigned by the r-port.
     */
    if ((!bfa_fcs_fabric_is_switched(port->fabric)) &&
        (memcmp((void *)&bfa_fcs_lport_get_pwwn(port),
               (void *)&plogi->port_name, sizeof(wwn_t)) < 0)) {
        if (BFA_FCS_PID_IS_WKA(rx_fchs->d_id)) {
            /* Address assigned to us cannot be a WKA */
            bfa_fcs_lport_send_ls_rjt(port, rx_fchs,
                    FC_LS_RJT_RSN_PROTOCOL_ERROR,
                    FC_LS_RJT_EXP_INVALID_NPORT_ID);
            return;
        }
        port->pid  = rx_fchs->d_id;
        bfa_lps_set_n2n_pid(port->fabric->lps, rx_fchs->d_id);
    }

    /*
     * First, check if we know the device by pwwn.
     */
    rport = bfa_fcs_lport_get_rport_by_pwwn(port, plogi->port_name);
    if (rport) {
        /*
         * Direct Attach P2P mode : handle address assigned by r-port.
         */
        if ((!bfa_fcs_fabric_is_switched(port->fabric)) &&
            (memcmp((void *)&bfa_fcs_lport_get_pwwn(port),
            (void *)&plogi->port_name, sizeof(wwn_t)) < 0)) {
            port->pid  = rx_fchs->d_id;
            bfa_lps_set_n2n_pid(port->fabric->lps, rx_fchs->d_id);
            rport->pid = rx_fchs->s_id;
        }
        bfa_fcs_rport_plogi(rport, rx_fchs, plogi);
        return;
    }

    /*
     * Next, lookup rport by PID.
     */
    rport = bfa_fcs_lport_get_rport_by_pid(port, rx_fchs->s_id);
    if (!rport) {
        /*
         * Inbound PLOGI from a new device.
         */
        bfa_fcs_rport_plogi_create(port, rx_fchs, plogi);
        return;
    }

    /*
     * Rport is known only by PID.
     */
    if (rport->pwwn) {
        /*
         * This is a different device with the same pid. Old device
         * disappeared. Send implicit LOGO to old device.
         */
        WARN_ON(rport->pwwn == plogi->port_name);
        bfa_sm_send_event(rport, RPSM_EVENT_LOGO_IMP);

        /*
         * Inbound PLOGI from a new device (with old PID).
         */
        bfa_fcs_rport_plogi_create(port, rx_fchs, plogi);
        return;
    }

    /*
     * PLOGI crossing each other.
     */
    WARN_ON(rport->pwwn != WWN_NULL);
    bfa_fcs_rport_plogi(rport, rx_fchs, plogi);
}

/*
 * Process incoming ECHO.
 * Since it does not require a login, it is processed here.
 */
static void
bfa_fcs_lport_echo(struct bfa_fcs_lport_s *port, struct fchs_s *rx_fchs,
        struct fc_echo_s *echo, u16 rx_len)
{
    struct fchs_s       fchs;
    struct bfa_fcxp_s   *fcxp;
    struct bfa_rport_s  *bfa_rport = NULL;
    int         len, pyld_len;

    bfa_trc(port->fcs, rx_fchs->s_id);
    bfa_trc(port->fcs, rx_fchs->d_id);

    fcxp = bfa_fcs_fcxp_alloc(port->fcs, BFA_FALSE);
    if (!fcxp)
        return;

    len = fc_ls_acc_build(&fchs, bfa_fcxp_get_reqbuf(fcxp),
                rx_fchs->s_id, bfa_fcs_lport_get_fcid(port),
                rx_fchs->ox_id);

    /*
     * Copy the payload (if any) from the echo frame
     */
    pyld_len = rx_len - sizeof(struct fchs_s);
    bfa_trc(port->fcs, rx_len);
    bfa_trc(port->fcs, pyld_len);

    if (pyld_len > len)
        memcpy(((u8 *) bfa_fcxp_get_reqbuf(fcxp)) +
            sizeof(struct fc_echo_s), (echo + 1),
            (pyld_len - sizeof(struct fc_echo_s)));

    bfa_fcxp_send(fcxp, bfa_rport, port->fabric->vf_id, port->lp_tag,
            BFA_FALSE, FC_CLASS_3, pyld_len, &fchs, NULL, NULL,
            FC_MAX_PDUSZ, 0);
}

/*
 * Process incoming RNID.
 * Since it does not require a login, it is processed here.
 */
static void
bfa_fcs_lport_rnid(struct bfa_fcs_lport_s *port, struct fchs_s *rx_fchs,
        struct fc_rnid_cmd_s *rnid, u16 rx_len)
{
    struct fc_rnid_common_id_data_s common_id_data;
    struct fc_rnid_general_topology_data_s gen_topo_data;
    struct fchs_s   fchs;
    struct bfa_fcxp_s *fcxp;
    struct bfa_rport_s *bfa_rport = NULL;
    u16 len;
    u32 data_format;

    bfa_trc(port->fcs, rx_fchs->s_id);
    bfa_trc(port->fcs, rx_fchs->d_id);
    bfa_trc(port->fcs, rx_len);

    fcxp = bfa_fcs_fcxp_alloc(port->fcs, BFA_FALSE);
    if (!fcxp)
        return;

    /*
     * Check Node Indentification Data Format
     * We only support General Topology Discovery Format.
     * For any other requested Data Formats, we return Common Node Id Data
     * only, as per FC-LS.
     */
    bfa_trc(port->fcs, rnid->node_id_data_format);
    if (rnid->node_id_data_format == RNID_NODEID_DATA_FORMAT_DISCOVERY) {
        data_format = RNID_NODEID_DATA_FORMAT_DISCOVERY;
        /*
         * Get General topology data for this port
         */
        bfa_fs_port_get_gen_topo_data(port, &gen_topo_data);
    } else {
        data_format = RNID_NODEID_DATA_FORMAT_COMMON;
    }

    /*
     * Copy the Node Id Info
     */
    common_id_data.port_name = bfa_fcs_lport_get_pwwn(port);
    common_id_data.node_name = bfa_fcs_lport_get_nwwn(port);

    len = fc_rnid_acc_build(&fchs, bfa_fcxp_get_reqbuf(fcxp),
                rx_fchs->s_id, bfa_fcs_lport_get_fcid(port),
                rx_fchs->ox_id, data_format, &common_id_data,
                &gen_topo_data);

    bfa_fcxp_send(fcxp, bfa_rport, port->fabric->vf_id, port->lp_tag,
            BFA_FALSE, FC_CLASS_3, len, &fchs, NULL, NULL,
            FC_MAX_PDUSZ, 0);
}

/*
 *  Fill out General Topolpgy Discovery Data for RNID ELS.
 */
static void
bfa_fs_port_get_gen_topo_data(struct bfa_fcs_lport_s *port,
            struct fc_rnid_general_topology_data_s *gen_topo_data)
{
    memset(gen_topo_data, 0,
              sizeof(struct fc_rnid_general_topology_data_s));

    gen_topo_data->asso_type = cpu_to_be32(RNID_ASSOCIATED_TYPE_HOST);
    gen_topo_data->phy_port_num = 0;    /* @todo */
    gen_topo_data->num_attached_nodes = cpu_to_be32(1);
}

static void
bfa_fcs_lport_online_actions(struct bfa_fcs_lport_s *port)
{
    struct bfad_s *bfad = (struct bfad_s *)port->fcs->bfad;
    char    lpwwn_buf[BFA_STRING_32];

    bfa_trc(port->fcs, port->fabric->oper_type);

    __port_action[port->fabric->fab_type].init(port);
    __port_action[port->fabric->fab_type].online(port);

    wwn2str(lpwwn_buf, bfa_fcs_lport_get_pwwn(port));
    BFA_LOG(KERN_WARNING, bfad, bfa_log_level,
        "Logical port online: WWN = %s Role = %s\n",
        lpwwn_buf, "Initiator");
    bfa_fcs_lport_aen_post(port, BFA_LPORT_AEN_ONLINE);

    bfad->bfad_flags |= BFAD_PORT_ONLINE;
}

static void
bfa_fcs_lport_offline_actions(struct bfa_fcs_lport_s *port)
{
    struct list_head    *qe, *qen;
    struct bfa_fcs_rport_s *rport;
    struct bfad_s *bfad = (struct bfad_s *)port->fcs->bfad;
    char    lpwwn_buf[BFA_STRING_32];

    bfa_trc(port->fcs, port->fabric->oper_type);

    __port_action[port->fabric->fab_type].offline(port);

    wwn2str(lpwwn_buf, bfa_fcs_lport_get_pwwn(port));
    if (bfa_sm_cmp_state(port->fabric,
            bfa_fcs_fabric_sm_online) == BFA_TRUE) {
        BFA_LOG(KERN_WARNING, bfad, bfa_log_level,
        "Logical port lost fabric connectivity: WWN = %s Role = %s\n",
        lpwwn_buf, "Initiator");
        bfa_fcs_lport_aen_post(port, BFA_LPORT_AEN_DISCONNECT);
    } else {
        BFA_LOG(KERN_WARNING, bfad, bfa_log_level,
        "Logical port taken offline: WWN = %s Role = %s\n",
        lpwwn_buf, "Initiator");
        bfa_fcs_lport_aen_post(port, BFA_LPORT_AEN_OFFLINE);
    }

    list_for_each_safe(qe, qen, &port->rport_q) {
        rport = (struct bfa_fcs_rport_s *) qe;
        bfa_sm_send_event(rport, RPSM_EVENT_LOGO_IMP);
    }
}

static void
bfa_fcs_lport_unknown_init(struct bfa_fcs_lport_s *port)
{
    WARN_ON(1);
}

static void
bfa_fcs_lport_unknown_online(struct bfa_fcs_lport_s *port)
{
    WARN_ON(1);
}

static void
bfa_fcs_lport_unknown_offline(struct bfa_fcs_lport_s *port)
{
    WARN_ON(1);
}

static void
bfa_fcs_lport_abts_acc(struct bfa_fcs_lport_s *port, struct fchs_s *rx_fchs)
{
    struct fchs_s fchs;
    struct bfa_fcxp_s *fcxp;
    int     len;

    bfa_trc(port->fcs, rx_fchs->d_id);
    bfa_trc(port->fcs, rx_fchs->s_id);

    fcxp = bfa_fcs_fcxp_alloc(port->fcs, BFA_FALSE);
    if (!fcxp)
        return;

    len = fc_ba_acc_build(&fchs, bfa_fcxp_get_reqbuf(fcxp),
            rx_fchs->s_id, bfa_fcs_lport_get_fcid(port),
            rx_fchs->ox_id, 0);

    bfa_fcxp_send(fcxp, NULL, port->fabric->vf_id, port->lp_tag,
              BFA_FALSE, FC_CLASS_3, len, &fchs, NULL, NULL,
              FC_MAX_PDUSZ, 0);
}
static void
bfa_fcs_lport_deleted(struct bfa_fcs_lport_s *port)
{
    struct bfad_s *bfad = (struct bfad_s *)port->fcs->bfad;
    char    lpwwn_buf[BFA_STRING_32];

    wwn2str(lpwwn_buf, bfa_fcs_lport_get_pwwn(port));
    BFA_LOG(KERN_INFO, bfad, bfa_log_level,
        "Logical port deleted: WWN = %s Role = %s\n",
        lpwwn_buf, "Initiator");
    bfa_fcs_lport_aen_post(port, BFA_LPORT_AEN_DELETE);

    /* Base port will be deleted by the OS driver */
    if (port->vport)
        bfa_fcs_vport_delete_comp(port->vport);
    else
        bfa_wc_down(&port->fabric->wc);
}


/*
 * Unsolicited frame receive handling.
 */
void
bfa_fcs_lport_uf_recv(struct bfa_fcs_lport_s *lport,
            struct fchs_s *fchs, u16 len)
{
    u32 pid = fchs->s_id;
    struct bfa_fcs_rport_s *rport = NULL;
    struct fc_els_cmd_s *els_cmd = (struct fc_els_cmd_s *) (fchs + 1);

    bfa_stats(lport, uf_recvs);
    bfa_trc(lport->fcs, fchs->type);

    if (!bfa_fcs_lport_is_online(lport)) {
        bfa_stats(lport, uf_recv_drops);
        return;
    }

    /*
     * First, handle ELSs that donot require a login.
     */
    /*
     * Handle PLOGI first
     */
    if ((fchs->type == FC_TYPE_ELS) &&
        (els_cmd->els_code == FC_ELS_PLOGI)) {
        bfa_fcs_lport_plogi(lport, fchs, (struct fc_logi_s *) els_cmd);
        return;
    }

    /*
     * Handle ECHO separately.
     */
    if ((fchs->type == FC_TYPE_ELS) && (els_cmd->els_code == FC_ELS_ECHO)) {
        bfa_fcs_lport_echo(lport, fchs,
                (struct fc_echo_s *)els_cmd, len);
        return;
    }

    /*
     * Handle RNID separately.
     */
    if ((fchs->type == FC_TYPE_ELS) && (els_cmd->els_code == FC_ELS_RNID)) {
        bfa_fcs_lport_rnid(lport, fchs,
            (struct fc_rnid_cmd_s *) els_cmd, len);
        return;
    }

    if (fchs->type == FC_TYPE_BLS) {
        if ((fchs->routing == FC_RTG_BASIC_LINK) &&
                (fchs->cat_info == FC_CAT_ABTS))
            bfa_fcs_lport_abts_acc(lport, fchs);
        return;
    }

    if (fchs->type == FC_TYPE_SERVICES) {
        /*
         * Unhandled FC-GS frames. Send a FC-CT Reject
         */
        bfa_fcs_lport_send_fcgs_rjt(lport, fchs, CT_RSN_NOT_SUPP,
                CT_NS_EXP_NOADDITIONAL);
        return;
    }

    /*
     * look for a matching remote port ID
     */
    rport = bfa_fcs_lport_get_rport_by_pid(lport, pid);
    if (rport) {
        bfa_trc(rport->fcs, fchs->s_id);
        bfa_trc(rport->fcs, fchs->d_id);
        bfa_trc(rport->fcs, fchs->type);

        bfa_fcs_rport_uf_recv(rport, fchs, len);
        return;
    }

    /*
     * Only handles ELS frames for now.
     */
    if (fchs->type != FC_TYPE_ELS) {
        bfa_trc(lport->fcs, fchs->s_id);
        bfa_trc(lport->fcs, fchs->d_id);
        /* ignore type FC_TYPE_FC_FSS */
        if (fchs->type != FC_TYPE_FC_FSS)
            bfa_sm_fault(lport->fcs, fchs->type);
        return;
    }

    bfa_trc(lport->fcs, els_cmd->els_code);
    if (els_cmd->els_code == FC_ELS_RSCN) {
        bfa_fcs_lport_scn_process_rscn(lport, fchs, len);
        return;
    }

    if (els_cmd->els_code == FC_ELS_LOGO) {
        /*
         * @todo Handle LOGO frames received.
         */
        return;
    }

    if (els_cmd->els_code == FC_ELS_PRLI) {
        /*
         * @todo Handle PRLI frames received.
         */
        return;
    }

    /*
     * Unhandled ELS frames. Send a LS_RJT.
     */
    bfa_fcs_lport_send_ls_rjt(lport, fchs, FC_LS_RJT_RSN_CMD_NOT_SUPP,
                 FC_LS_RJT_EXP_NO_ADDL_INFO);

}

/*
 *   PID based Lookup for a R-Port in the Port R-Port Queue
 */
struct bfa_fcs_rport_s *
bfa_fcs_lport_get_rport_by_pid(struct bfa_fcs_lport_s *port, u32 pid)
{
    struct bfa_fcs_rport_s *rport;
    struct list_head    *qe;

    list_for_each(qe, &port->rport_q) {
        rport = (struct bfa_fcs_rport_s *) qe;
        if (rport->pid == pid)
            return rport;
    }

    bfa_trc(port->fcs, pid);
    return NULL;
}

/*
 * OLD_PID based Lookup for a R-Port in the Port R-Port Queue
 */
struct bfa_fcs_rport_s *
bfa_fcs_lport_get_rport_by_old_pid(struct bfa_fcs_lport_s *port, u32 pid)
{
    struct bfa_fcs_rport_s *rport;
    struct list_head    *qe;

    list_for_each(qe, &port->rport_q) {
        rport = (struct bfa_fcs_rport_s *) qe;
        if (rport->old_pid == pid)
            return rport;
    }

    bfa_trc(port->fcs, pid);
    return NULL;
}

/*
 *   PWWN based Lookup for a R-Port in the Port R-Port Queue
 */
struct bfa_fcs_rport_s *
bfa_fcs_lport_get_rport_by_pwwn(struct bfa_fcs_lport_s *port, wwn_t pwwn)
{
    struct bfa_fcs_rport_s *rport;
    struct list_head    *qe;

    list_for_each(qe, &port->rport_q) {
        rport = (struct bfa_fcs_rport_s *) qe;
        if (wwn_is_equal(rport->pwwn, pwwn))
            return rport;
    }

    bfa_trc(port->fcs, pwwn);
    return NULL;
}

/*
 *   NWWN based Lookup for a R-Port in the Port R-Port Queue
 */
struct bfa_fcs_rport_s *
bfa_fcs_lport_get_rport_by_nwwn(struct bfa_fcs_lport_s *port, wwn_t nwwn)
{
    struct bfa_fcs_rport_s *rport;
    struct list_head    *qe;

    list_for_each(qe, &port->rport_q) {
        rport = (struct bfa_fcs_rport_s *) qe;
        if (wwn_is_equal(rport->nwwn, nwwn))
            return rport;
    }

    bfa_trc(port->fcs, nwwn);
    return NULL;
}

/*
 * PWWN & PID based Lookup for a R-Port in the Port R-Port Queue
 */
struct bfa_fcs_rport_s *
bfa_fcs_lport_get_rport_by_qualifier(struct bfa_fcs_lport_s *port,
                     wwn_t pwwn, u32 pid)
{
    struct bfa_fcs_rport_s *rport;
    struct list_head    *qe;

    list_for_each(qe, &port->rport_q) {
        rport = (struct bfa_fcs_rport_s *) qe;
        if (wwn_is_equal(rport->pwwn, pwwn) && rport->pid == pid)
            return rport;
    }

    bfa_trc(port->fcs, pwwn);
    return NULL;
}

/*
 * Called by rport module when new rports are discovered.
 */
void
bfa_fcs_lport_add_rport(
    struct bfa_fcs_lport_s *port,
    struct bfa_fcs_rport_s *rport)
{
    list_add_tail(&rport->qe, &port->rport_q);
    port->num_rports++;
}

/*
 * Called by rport module to when rports are deleted.
 */
void
bfa_fcs_lport_del_rport(
    struct bfa_fcs_lport_s *port,
    struct bfa_fcs_rport_s *rport)
{
    WARN_ON(!bfa_q_is_on_q(&port->rport_q, rport));
    list_del(&rport->qe);
    port->num_rports--;

    bfa_sm_send_event(port, BFA_FCS_PORT_SM_DELRPORT);
}

/*
 * Called by fabric for base port when fabric login is complete.
 * Called by vport for virtual ports when FDISC is complete.
 */
void
bfa_fcs_lport_online(struct bfa_fcs_lport_s *port)
{
    bfa_sm_send_event(port, BFA_FCS_PORT_SM_ONLINE);
}

/*
 * Called by fabric for base port when fabric goes offline.
 * Called by vport for virtual ports when virtual port becomes offline.
 */
void
bfa_fcs_lport_offline(struct bfa_fcs_lport_s *port)
{
    bfa_sm_send_event(port, BFA_FCS_PORT_SM_OFFLINE);
}

/*
 * Called by fabric for base port and by vport for virtual ports
 * when target mode driver is unloaded.
 */
void
bfa_fcs_lport_stop(struct bfa_fcs_lport_s *port)
{
    bfa_sm_send_event(port, BFA_FCS_PORT_SM_STOP);
}

/*
 * Called by fabric to delete base lport and associated resources.
 *
 * Called by vport to delete lport and associated resources. Should call
 * bfa_fcs_vport_delete_comp() for vports on completion.
 */
void
bfa_fcs_lport_delete(struct bfa_fcs_lport_s *port)
{
    bfa_sm_send_event(port, BFA_FCS_PORT_SM_DELETE);
}

/*
 * Return TRUE if port is online, else return FALSE
 */
bfa_boolean_t
bfa_fcs_lport_is_online(struct bfa_fcs_lport_s *port)
{
    return bfa_sm_cmp_state(port, bfa_fcs_lport_sm_online);
}

/*
  * Attach time initialization of logical ports.
 */
void
bfa_fcs_lport_attach(struct bfa_fcs_lport_s *lport, struct bfa_fcs_s *fcs,
           u16 vf_id, struct bfa_fcs_vport_s *vport)
{
    lport->fcs = fcs;
    lport->fabric = bfa_fcs_vf_lookup(fcs, vf_id);
    lport->vport = vport;
    lport->lp_tag = (vport) ? vport->lps->bfa_tag :
                  lport->fabric->lps->bfa_tag;

    INIT_LIST_HEAD(&lport->rport_q);
    lport->num_rports = 0;
}

/*
 * Logical port initialization of base or virtual port.
 * Called by fabric for base port or by vport for virtual ports.
 */

void
bfa_fcs_lport_init(struct bfa_fcs_lport_s *lport,
    struct bfa_lport_cfg_s *port_cfg)
{
    struct bfa_fcs_vport_s *vport = lport->vport;
    struct bfad_s *bfad = (struct bfad_s *)lport->fcs->bfad;
    char    lpwwn_buf[BFA_STRING_32];

    lport->port_cfg = *port_cfg;

    lport->bfad_port = bfa_fcb_lport_new(lport->fcs->bfad, lport,
                    lport->port_cfg.roles,
                    lport->fabric->vf_drv,
                    vport ? vport->vport_drv : NULL);

    wwn2str(lpwwn_buf, bfa_fcs_lport_get_pwwn(lport));
    BFA_LOG(KERN_INFO, bfad, bfa_log_level,
        "New logical port created: WWN = %s Role = %s\n",
        lpwwn_buf, "Initiator");
    bfa_fcs_lport_aen_post(lport, BFA_LPORT_AEN_NEW);

    bfa_sm_set_state(lport, bfa_fcs_lport_sm_uninit);
    bfa_sm_send_event(lport, BFA_FCS_PORT_SM_CREATE);
}

/*
 *  fcs_lport_api
 */

void
bfa_fcs_lport_get_attr(
    struct bfa_fcs_lport_s *port,
    struct bfa_lport_attr_s *port_attr)
{
    if (bfa_sm_cmp_state(port, bfa_fcs_lport_sm_online))
        port_attr->pid = port->pid;
    else
        port_attr->pid = 0;

    port_attr->port_cfg = port->port_cfg;

    if (port->fabric) {
        port_attr->port_type = port->fabric->oper_type;
        port_attr->loopback = bfa_sm_cmp_state(port->fabric,
                bfa_fcs_fabric_sm_loopback);
        port_attr->authfail =
            bfa_sm_cmp_state(port->fabric,
                bfa_fcs_fabric_sm_auth_failed);
        port_attr->fabric_name  = bfa_fcs_lport_get_fabric_name(port);
        memcpy(port_attr->fabric_ip_addr,
            bfa_fcs_lport_get_fabric_ipaddr(port),
            BFA_FCS_FABRIC_IPADDR_SZ);

        if (port->vport != NULL) {
            port_attr->port_type = BFA_PORT_TYPE_VPORT;
            port_attr->fpma_mac =
                port->vport->lps->lp_mac;
        } else {
            port_attr->fpma_mac =
                port->fabric->lps->lp_mac;
        }
    } else {
        port_attr->port_type = BFA_PORT_TYPE_UNKNOWN;
        port_attr->state = BFA_LPORT_UNINIT;
    }
}

/*
 *  bfa_fcs_lport_fab port fab functions
 */

/*
 *   Called by port to initialize fabric services of the base port.
 */
static void
bfa_fcs_lport_fab_init(struct bfa_fcs_lport_s *port)
{
    bfa_fcs_lport_ns_init(port);
    bfa_fcs_lport_scn_init(port);
    bfa_fcs_lport_ms_init(port);
}

/*
 *   Called by port to notify transition to online state.
 */
static void
bfa_fcs_lport_fab_online(struct bfa_fcs_lport_s *port)
{
    bfa_fcs_lport_ns_online(port);
    bfa_fcs_lport_fab_scn_online(port);
}

/*
 *   Called by port to notify transition to offline state.
 */
static void
bfa_fcs_lport_fab_offline(struct bfa_fcs_lport_s *port)
{
    bfa_fcs_lport_ns_offline(port);
    bfa_fcs_lport_scn_offline(port);
    bfa_fcs_lport_ms_offline(port);
}

/*
 *  bfa_fcs_lport_n2n  functions
 */

/*
 *   Called by fcs/port to initialize N2N topology.
 */
static void
bfa_fcs_lport_n2n_init(struct bfa_fcs_lport_s *port)
{
}

/*
 *   Called by fcs/port to notify transition to online state.
 */
static void
bfa_fcs_lport_n2n_online(struct bfa_fcs_lport_s *port)
{
    struct bfa_fcs_lport_n2n_s *n2n_port = &port->port_topo.pn2n;
    struct bfa_lport_cfg_s *pcfg = &port->port_cfg;
    struct bfa_fcs_rport_s *rport;

    bfa_trc(port->fcs, pcfg->pwwn);

    /*
     * If our PWWN is > than that of the r-port, we have to initiate PLOGI
     * and assign an Address. if not, we need to wait for its PLOGI.
     *
     * If our PWWN is < than that of the remote port, it will send a PLOGI
     * with the PIDs assigned. The rport state machine take care of this
     * incoming PLOGI.
     */
    if (memcmp
        ((void *)&pcfg->pwwn, (void *)&n2n_port->rem_port_wwn,
         sizeof(wwn_t)) > 0) {
        port->pid = N2N_LOCAL_PID;
        bfa_lps_set_n2n_pid(port->fabric->lps, N2N_LOCAL_PID);
        /*
         * First, check if we know the device by pwwn.
         */
        rport = bfa_fcs_lport_get_rport_by_pwwn(port,
                            n2n_port->rem_port_wwn);
        if (rport) {
            bfa_trc(port->fcs, rport->pid);
            bfa_trc(port->fcs, rport->pwwn);
            rport->pid = N2N_REMOTE_PID;
            bfa_sm_send_event(rport, RPSM_EVENT_PLOGI_SEND);
            return;
        }

        /*
         * In n2n there can be only one rport. Delete the old one
         * whose pid should be zero, because it is offline.
         */
        if (port->num_rports > 0) {
            rport = bfa_fcs_lport_get_rport_by_pid(port, 0);
            WARN_ON(rport == NULL);
            if (rport) {
                bfa_trc(port->fcs, rport->pwwn);
                bfa_sm_send_event(rport, RPSM_EVENT_DELETE);
            }
        }
        bfa_fcs_rport_create(port, N2N_REMOTE_PID);
    }
}

/*
 *   Called by fcs/port to notify transition to offline state.
 */
static void
bfa_fcs_lport_n2n_offline(struct bfa_fcs_lport_s *port)
{
    struct bfa_fcs_lport_n2n_s *n2n_port = &port->port_topo.pn2n;

    bfa_trc(port->fcs, port->pid);
    port->pid = 0;
    n2n_port->rem_port_wwn = 0;
    n2n_port->reply_oxid = 0;
}

void
bfa_fcport_get_loop_attr(struct bfa_fcs_lport_s *port)
{
    int i = 0, j = 0, bit = 0, alpa_bit = 0;
    u8 k = 0;
    struct bfa_fcport_s *fcport = BFA_FCPORT_MOD(port->fcs->bfa);

    port->port_topo.ploop.alpabm_valid = fcport->alpabm_valid;
    port->pid = fcport->myalpa;
    port->pid = bfa_hton3b(port->pid);

    for (i = 0; i < (FC_ALPA_MAX / 8); i++) {
        for (j = 0, alpa_bit = 0; j < 8; j++, alpa_bit++) {
            bfa_trc(port->fcs->bfa, fcport->alpabm.alpa_bm[i]);
            bit = (fcport->alpabm.alpa_bm[i] & (1 << (7 - j)));
            if (bit) {
                port->port_topo.ploop.alpa_pos_map[k] =
                    loop_alpa_map[(i * 8) + alpa_bit];
                k++;
                bfa_trc(port->fcs->bfa, k);
                bfa_trc(port->fcs->bfa,
                     port->port_topo.ploop.alpa_pos_map[k]);
            }
        }
    }
    port->port_topo.ploop.num_alpa = k;
}

/*
 * Called by fcs/port to initialize Loop topology.
 */
static void
bfa_fcs_lport_loop_init(struct bfa_fcs_lport_s *port)
{
}

/*
 * Called by fcs/port to notify transition to online state.
 */
static void
bfa_fcs_lport_loop_online(struct bfa_fcs_lport_s *port)
{
    u8 num_alpa = 0, alpabm_valid = 0;
    struct bfa_fcs_rport_s *rport;
    u8 *alpa_map = NULL;
    int i = 0;
    u32 pid;

    bfa_fcport_get_loop_attr(port);

    num_alpa = port->port_topo.ploop.num_alpa;
    alpabm_valid = port->port_topo.ploop.alpabm_valid;
    alpa_map = port->port_topo.ploop.alpa_pos_map;

    bfa_trc(port->fcs->bfa, port->pid);
    bfa_trc(port->fcs->bfa, num_alpa);
    if (alpabm_valid == 1) {
        for (i = 0; i < num_alpa; i++) {
            bfa_trc(port->fcs->bfa, alpa_map[i]);
            if (alpa_map[i] != bfa_hton3b(port->pid)) {
                pid = alpa_map[i];
                bfa_trc(port->fcs->bfa, pid);
                rport = bfa_fcs_lport_get_rport_by_pid(port,
                        bfa_hton3b(pid));
                if (!rport)
                    rport = bfa_fcs_rport_create(port,
                        bfa_hton3b(pid));
            }
        }
    } else {
        for (i = 0; i < MAX_ALPA_COUNT; i++) {
            if (alpa_map[i] != port->pid) {
                pid = loop_alpa_map[i];
                bfa_trc(port->fcs->bfa, pid);
                rport = bfa_fcs_lport_get_rport_by_pid(port,
                        bfa_hton3b(pid));
                if (!rport)
                    rport = bfa_fcs_rport_create(port,
                        bfa_hton3b(pid));
            }
        }
    }
}

/*
 * Called by fcs/port to notify transition to offline state.
 */
static void
bfa_fcs_lport_loop_offline(struct bfa_fcs_lport_s *port)
{
}

#define BFA_FCS_FDMI_CMD_MAX_RETRIES 2

/*
 * forward declarations
 */
static void     bfa_fcs_lport_fdmi_send_rhba(void *fdmi_cbarg,
                        struct bfa_fcxp_s *fcxp_alloced);
static void     bfa_fcs_lport_fdmi_send_rprt(void *fdmi_cbarg,
                        struct bfa_fcxp_s *fcxp_alloced);
static void     bfa_fcs_lport_fdmi_send_rpa(void *fdmi_cbarg,
                       struct bfa_fcxp_s *fcxp_alloced);
static void     bfa_fcs_lport_fdmi_rhba_response(void *fcsarg,
                        struct bfa_fcxp_s *fcxp,
                        void *cbarg,
                        bfa_status_t req_status,
                        u32 rsp_len,
                        u32 resid_len,
                        struct fchs_s *rsp_fchs);
static void     bfa_fcs_lport_fdmi_rprt_response(void *fcsarg,
                        struct bfa_fcxp_s *fcxp,
                        void *cbarg,
                        bfa_status_t req_status,
                        u32 rsp_len,
                        u32 resid_len,
                        struct fchs_s *rsp_fchs);
static void     bfa_fcs_lport_fdmi_rpa_response(void *fcsarg,
                           struct bfa_fcxp_s *fcxp,
                           void *cbarg,
                           bfa_status_t req_status,
                           u32 rsp_len,
                           u32 resid_len,
                           struct fchs_s *rsp_fchs);
static void     bfa_fcs_lport_fdmi_timeout(void *arg);
static u16 bfa_fcs_lport_fdmi_build_rhba_pyld(struct bfa_fcs_lport_fdmi_s *fdmi,
                          u8 *pyld);
static u16 bfa_fcs_lport_fdmi_build_rprt_pyld(struct bfa_fcs_lport_fdmi_s *fdmi,
                          u8 *pyld);
static u16 bfa_fcs_lport_fdmi_build_rpa_pyld(struct bfa_fcs_lport_fdmi_s *fdmi,
                         u8 *pyld);
static u16 bfa_fcs_lport_fdmi_build_portattr_block(struct bfa_fcs_lport_fdmi_s *
                               fdmi, u8 *pyld);
static void bfa_fcs_fdmi_get_hbaattr(struct bfa_fcs_lport_fdmi_s *fdmi,
                 struct bfa_fcs_fdmi_hba_attr_s *hba_attr);
static void bfa_fcs_fdmi_get_portattr(struct bfa_fcs_lport_fdmi_s *fdmi,
                  struct bfa_fcs_fdmi_port_attr_s *port_attr);
u32 bfa_fcs_fdmi_convert_speed(enum bfa_port_speed pport_speed);

/*
 *  fcs_fdmi_sm FCS FDMI state machine
 */

/*
 *  FDMI State Machine events
 */
enum port_fdmi_event {
    FDMISM_EVENT_PORT_ONLINE = 1,
    FDMISM_EVENT_PORT_OFFLINE = 2,
    FDMISM_EVENT_RSP_OK = 4,
    FDMISM_EVENT_RSP_ERROR = 5,
    FDMISM_EVENT_TIMEOUT = 6,
    FDMISM_EVENT_RHBA_SENT = 7,
    FDMISM_EVENT_RPRT_SENT = 8,
    FDMISM_EVENT_RPA_SENT = 9,
};

static void     bfa_fcs_lport_fdmi_sm_offline(struct bfa_fcs_lport_fdmi_s *fdmi,
                         enum port_fdmi_event event);
static void     bfa_fcs_lport_fdmi_sm_sending_rhba(
                struct bfa_fcs_lport_fdmi_s *fdmi,
                enum port_fdmi_event event);
static void     bfa_fcs_lport_fdmi_sm_rhba(struct bfa_fcs_lport_fdmi_s *fdmi,
                      enum port_fdmi_event event);
static void     bfa_fcs_lport_fdmi_sm_rhba_retry(
                struct bfa_fcs_lport_fdmi_s *fdmi,
                enum port_fdmi_event event);
static void     bfa_fcs_lport_fdmi_sm_sending_rprt(
                struct bfa_fcs_lport_fdmi_s *fdmi,
                enum port_fdmi_event event);
static void     bfa_fcs_lport_fdmi_sm_rprt(struct bfa_fcs_lport_fdmi_s *fdmi,
                      enum port_fdmi_event event);
static void     bfa_fcs_lport_fdmi_sm_rprt_retry(
                struct bfa_fcs_lport_fdmi_s *fdmi,
                enum port_fdmi_event event);
static void     bfa_fcs_lport_fdmi_sm_sending_rpa(
                struct bfa_fcs_lport_fdmi_s *fdmi,
                enum port_fdmi_event event);
static void     bfa_fcs_lport_fdmi_sm_rpa(struct bfa_fcs_lport_fdmi_s *fdmi,
                     enum port_fdmi_event event);
static void     bfa_fcs_lport_fdmi_sm_rpa_retry(
                struct bfa_fcs_lport_fdmi_s *fdmi,
                enum port_fdmi_event event);
static void     bfa_fcs_lport_fdmi_sm_online(struct bfa_fcs_lport_fdmi_s *fdmi,
                        enum port_fdmi_event event);
static void     bfa_fcs_lport_fdmi_sm_disabled(
                struct bfa_fcs_lport_fdmi_s *fdmi,
                enum port_fdmi_event event);
/*
 *  Start in offline state - awaiting MS to send start.
 */
static void
bfa_fcs_lport_fdmi_sm_offline(struct bfa_fcs_lport_fdmi_s *fdmi,
                 enum port_fdmi_event event)
{
    struct bfa_fcs_lport_s *port = fdmi->ms->port;

    bfa_trc(port->fcs, port->port_cfg.pwwn);
    bfa_trc(port->fcs, event);

    fdmi->retry_cnt = 0;

    switch (event) {
    case FDMISM_EVENT_PORT_ONLINE:
        if (port->vport) {
            /*
             * For Vports, register a new port.
             */
            bfa_sm_set_state(fdmi,
                     bfa_fcs_lport_fdmi_sm_sending_rprt);
            bfa_fcs_lport_fdmi_send_rprt(fdmi, NULL);
        } else {
            /*
             * For a base port, we should first register the HBA
             * attribute. The HBA attribute also contains the base
             *  port registration.
             */
            bfa_sm_set_state(fdmi,
                     bfa_fcs_lport_fdmi_sm_sending_rhba);
            bfa_fcs_lport_fdmi_send_rhba(fdmi, NULL);
        }
        break;

    case FDMISM_EVENT_PORT_OFFLINE:
        break;

    default:
        bfa_sm_fault(port->fcs, event);
    }
}

static void
bfa_fcs_lport_fdmi_sm_sending_rhba(struct bfa_fcs_lport_fdmi_s *fdmi,
                  enum port_fdmi_event event)
{
    struct bfa_fcs_lport_s *port = fdmi->ms->port;

    bfa_trc(port->fcs, port->port_cfg.pwwn);
    bfa_trc(port->fcs, event);

    switch (event) {
    case FDMISM_EVENT_RHBA_SENT:
        bfa_sm_set_state(fdmi, bfa_fcs_lport_fdmi_sm_rhba);
        break;

    case FDMISM_EVENT_PORT_OFFLINE:
        bfa_sm_set_state(fdmi, bfa_fcs_lport_fdmi_sm_offline);
        bfa_fcxp_walloc_cancel(BFA_FCS_GET_HAL_FROM_PORT(port),
                       &fdmi->fcxp_wqe);
        break;

    default:
        bfa_sm_fault(port->fcs, event);
    }
}

static void
bfa_fcs_lport_fdmi_sm_rhba(struct bfa_fcs_lport_fdmi_s *fdmi,
            enum port_fdmi_event event)
{
    struct bfa_fcs_lport_s *port = fdmi->ms->port;

    bfa_trc(port->fcs, port->port_cfg.pwwn);
    bfa_trc(port->fcs, event);

    switch (event) {
    case FDMISM_EVENT_RSP_ERROR:
        /*
         * if max retries have not been reached, start timer for a
         * delayed retry
         */
        if (fdmi->retry_cnt++ < BFA_FCS_FDMI_CMD_MAX_RETRIES) {
            bfa_sm_set_state(fdmi,
                    bfa_fcs_lport_fdmi_sm_rhba_retry);
            bfa_timer_start(BFA_FCS_GET_HAL_FROM_PORT(port),
                        &fdmi->timer,
                        bfa_fcs_lport_fdmi_timeout, fdmi,
                        BFA_FCS_RETRY_TIMEOUT);
        } else {
            /*
             * set state to offline
             */
            bfa_sm_set_state(fdmi, bfa_fcs_lport_fdmi_sm_offline);
        }
        break;

    case FDMISM_EVENT_RSP_OK:
        /*
         * Initiate Register Port Attributes
         */
        bfa_sm_set_state(fdmi, bfa_fcs_lport_fdmi_sm_sending_rpa);
        fdmi->retry_cnt = 0;
        bfa_fcs_lport_fdmi_send_rpa(fdmi, NULL);
        break;

    case FDMISM_EVENT_PORT_OFFLINE:
        bfa_fcxp_discard(fdmi->fcxp);
        bfa_sm_set_state(fdmi, bfa_fcs_lport_fdmi_sm_offline);
        break;

    default:
        bfa_sm_fault(port->fcs, event);
    }
}

static void
bfa_fcs_lport_fdmi_sm_rhba_retry(struct bfa_fcs_lport_fdmi_s *fdmi,
                enum port_fdmi_event event)
{
    struct bfa_fcs_lport_s *port = fdmi->ms->port;

    bfa_trc(port->fcs, port->port_cfg.pwwn);
    bfa_trc(port->fcs, event);

    switch (event) {
    case FDMISM_EVENT_TIMEOUT:
        /*
         * Retry Timer Expired. Re-send
         */
        bfa_sm_set_state(fdmi, bfa_fcs_lport_fdmi_sm_sending_rhba);
        bfa_fcs_lport_fdmi_send_rhba(fdmi, NULL);
        break;

    case FDMISM_EVENT_PORT_OFFLINE:
        bfa_sm_set_state(fdmi, bfa_fcs_lport_fdmi_sm_offline);
        bfa_timer_stop(&fdmi->timer);
        break;

    default:
        bfa_sm_fault(port->fcs, event);
    }
}

/*
* RPRT : Register Port
 */
static void
bfa_fcs_lport_fdmi_sm_sending_rprt(struct bfa_fcs_lport_fdmi_s *fdmi,
                  enum port_fdmi_event event)
{
    struct bfa_fcs_lport_s *port = fdmi->ms->port;

    bfa_trc(port->fcs, port->port_cfg.pwwn);
    bfa_trc(port->fcs, event);

    switch (event) {
    case FDMISM_EVENT_RPRT_SENT:
        bfa_sm_set_state(fdmi, bfa_fcs_lport_fdmi_sm_rprt);
        break;

    case FDMISM_EVENT_PORT_OFFLINE:
        bfa_sm_set_state(fdmi, bfa_fcs_lport_fdmi_sm_offline);
        bfa_fcxp_walloc_cancel(BFA_FCS_GET_HAL_FROM_PORT(port),
                       &fdmi->fcxp_wqe);
        break;

    default:
        bfa_sm_fault(port->fcs, event);
    }
}

static void
bfa_fcs_lport_fdmi_sm_rprt(struct bfa_fcs_lport_fdmi_s *fdmi,
            enum port_fdmi_event event)
{
    struct bfa_fcs_lport_s *port = fdmi->ms->port;

    bfa_trc(port->fcs, port->port_cfg.pwwn);
    bfa_trc(port->fcs, event);

    switch (event) {
    case FDMISM_EVENT_RSP_ERROR:
        /*
         * if max retries have not been reached, start timer for a
         * delayed retry
         */
        if (fdmi->retry_cnt++ < BFA_FCS_FDMI_CMD_MAX_RETRIES) {
            bfa_sm_set_state(fdmi,
                    bfa_fcs_lport_fdmi_sm_rprt_retry);
            bfa_timer_start(BFA_FCS_GET_HAL_FROM_PORT(port),
                        &fdmi->timer,
                        bfa_fcs_lport_fdmi_timeout, fdmi,
                        BFA_FCS_RETRY_TIMEOUT);

        } else {
            /*
             * set state to offline
             */
            bfa_sm_set_state(fdmi, bfa_fcs_lport_fdmi_sm_offline);
            fdmi->retry_cnt = 0;
        }
        break;

    case FDMISM_EVENT_RSP_OK:
        fdmi->retry_cnt = 0;
        bfa_sm_set_state(fdmi, bfa_fcs_lport_fdmi_sm_online);
        break;

    case FDMISM_EVENT_PORT_OFFLINE:
        bfa_fcxp_discard(fdmi->fcxp);
        bfa_sm_set_state(fdmi, bfa_fcs_lport_fdmi_sm_offline);
        break;

    default:
        bfa_sm_fault(port->fcs, event);
    }
}

static void
bfa_fcs_lport_fdmi_sm_rprt_retry(struct bfa_fcs_lport_fdmi_s *fdmi,
                enum port_fdmi_event event)
{
    struct bfa_fcs_lport_s *port = fdmi->ms->port;

    bfa_trc(port->fcs, port->port_cfg.pwwn);
    bfa_trc(port->fcs, event);

    switch (event) {
    case FDMISM_EVENT_TIMEOUT:
        /*
         * Retry Timer Expired. Re-send
         */
        bfa_sm_set_state(fdmi, bfa_fcs_lport_fdmi_sm_sending_rprt);
        bfa_fcs_lport_fdmi_send_rprt(fdmi, NULL);
        break;

    case FDMISM_EVENT_PORT_OFFLINE:
        bfa_sm_set_state(fdmi, bfa_fcs_lport_fdmi_sm_offline);
        bfa_timer_stop(&fdmi->timer);
        break;

    default:
        bfa_sm_fault(port->fcs, event);
    }
}

/*
 * Register Port Attributes
 */
static void
bfa_fcs_lport_fdmi_sm_sending_rpa(struct bfa_fcs_lport_fdmi_s *fdmi,
                 enum port_fdmi_event event)
{
    struct bfa_fcs_lport_s *port = fdmi->ms->port;

    bfa_trc(port->fcs, port->port_cfg.pwwn);
    bfa_trc(port->fcs, event);

    switch (event) {
    case FDMISM_EVENT_RPA_SENT:
        bfa_sm_set_state(fdmi, bfa_fcs_lport_fdmi_sm_rpa);
        break;

    case FDMISM_EVENT_PORT_OFFLINE:
        bfa_sm_set_state(fdmi, bfa_fcs_lport_fdmi_sm_offline);
        bfa_fcxp_walloc_cancel(BFA_FCS_GET_HAL_FROM_PORT(port),
                       &fdmi->fcxp_wqe);
        break;

    default:
        bfa_sm_fault(port->fcs, event);
    }
}

static void
bfa_fcs_lport_fdmi_sm_rpa(struct bfa_fcs_lport_fdmi_s *fdmi,
            enum port_fdmi_event event)
{
    struct bfa_fcs_lport_s *port = fdmi->ms->port;

    bfa_trc(port->fcs, port->port_cfg.pwwn);
    bfa_trc(port->fcs, event);

    switch (event) {
    case FDMISM_EVENT_RSP_ERROR:
        /*
         * if max retries have not been reached, start timer for a
         * delayed retry
         */
        if (fdmi->retry_cnt++ < BFA_FCS_FDMI_CMD_MAX_RETRIES) {
            bfa_sm_set_state(fdmi, bfa_fcs_lport_fdmi_sm_rpa_retry);
            bfa_timer_start(BFA_FCS_GET_HAL_FROM_PORT(port),
                        &fdmi->timer,
                        bfa_fcs_lport_fdmi_timeout, fdmi,
                        BFA_FCS_RETRY_TIMEOUT);
        } else {
            /*
             * set state to offline
             */
            bfa_sm_set_state(fdmi, bfa_fcs_lport_fdmi_sm_offline);
            fdmi->retry_cnt = 0;
        }
        break;

    case FDMISM_EVENT_RSP_OK:
        bfa_sm_set_state(fdmi, bfa_fcs_lport_fdmi_sm_online);
        fdmi->retry_cnt = 0;
        break;

    case FDMISM_EVENT_PORT_OFFLINE:
        bfa_fcxp_discard(fdmi->fcxp);
        bfa_sm_set_state(fdmi, bfa_fcs_lport_fdmi_sm_offline);
        break;

    default:
        bfa_sm_fault(port->fcs, event);
    }
}

static void
bfa_fcs_lport_fdmi_sm_rpa_retry(struct bfa_fcs_lport_fdmi_s *fdmi,
                   enum port_fdmi_event event)
{
    struct bfa_fcs_lport_s *port = fdmi->ms->port;

    bfa_trc(port->fcs, port->port_cfg.pwwn);
    bfa_trc(port->fcs, event);

    switch (event) {
    case FDMISM_EVENT_TIMEOUT:
        /*
         * Retry Timer Expired. Re-send
         */
        bfa_sm_set_state(fdmi, bfa_fcs_lport_fdmi_sm_sending_rpa);
        bfa_fcs_lport_fdmi_send_rpa(fdmi, NULL);
        break;

    case FDMISM_EVENT_PORT_OFFLINE:
        bfa_sm_set_state(fdmi, bfa_fcs_lport_fdmi_sm_offline);
        bfa_timer_stop(&fdmi->timer);
        break;

    default:
        bfa_sm_fault(port->fcs, event);
    }
}

static void
bfa_fcs_lport_fdmi_sm_online(struct bfa_fcs_lport_fdmi_s *fdmi,
                enum port_fdmi_event event)
{
    struct bfa_fcs_lport_s *port = fdmi->ms->port;

    bfa_trc(port->fcs, port->port_cfg.pwwn);
    bfa_trc(port->fcs, event);

    switch (event) {
    case FDMISM_EVENT_PORT_OFFLINE:
        bfa_sm_set_state(fdmi, bfa_fcs_lport_fdmi_sm_offline);
        break;

    default:
        bfa_sm_fault(port->fcs, event);
    }
}
/*
 *  FDMI is disabled state.
 */
static void
bfa_fcs_lport_fdmi_sm_disabled(struct bfa_fcs_lport_fdmi_s *fdmi,
                 enum port_fdmi_event event)
{
    struct bfa_fcs_lport_s *port = fdmi->ms->port;

    bfa_trc(port->fcs, port->port_cfg.pwwn);
    bfa_trc(port->fcs, event);

    /* No op State. It can only be enabled at Driver Init. */
}

/*
*  RHBA : Register HBA Attributes.
 */
static void
bfa_fcs_lport_fdmi_send_rhba(void *fdmi_cbarg, struct bfa_fcxp_s *fcxp_alloced)
{
    struct bfa_fcs_lport_fdmi_s *fdmi = fdmi_cbarg;
    struct bfa_fcs_lport_s *port = fdmi->ms->port;
    struct fchs_s fchs;
    int             len, attr_len;
    struct bfa_fcxp_s *fcxp;
    u8        *pyld;

    bfa_trc(port->fcs, port->port_cfg.pwwn);

    fcxp = fcxp_alloced ? fcxp_alloced :
           bfa_fcs_fcxp_alloc(port->fcs, BFA_TRUE);
    if (!fcxp) {
        bfa_fcs_fcxp_alloc_wait(port->fcs->bfa, &fdmi->fcxp_wqe,
                bfa_fcs_lport_fdmi_send_rhba, fdmi, BFA_TRUE);
        return;
    }
    fdmi->fcxp = fcxp;

    pyld = bfa_fcxp_get_reqbuf(fcxp);
    memset(pyld, 0, FC_MAX_PDUSZ);

    len = fc_fdmi_reqhdr_build(&fchs, pyld, bfa_fcs_lport_get_fcid(port),
                   FDMI_RHBA);

    attr_len =
        bfa_fcs_lport_fdmi_build_rhba_pyld(fdmi,
                      (u8 *) ((struct ct_hdr_s *) pyld
                               + 1));

    bfa_fcxp_send(fcxp, NULL, port->fabric->vf_id, port->lp_tag, BFA_FALSE,
              FC_CLASS_3, (len + attr_len), &fchs,
              bfa_fcs_lport_fdmi_rhba_response, (void *)fdmi,
              FC_MAX_PDUSZ, FC_FCCT_TOV);

    bfa_sm_send_event(fdmi, FDMISM_EVENT_RHBA_SENT);
}

static          u16
bfa_fcs_lport_fdmi_build_rhba_pyld(struct bfa_fcs_lport_fdmi_s *fdmi, u8 *pyld)
{
    struct bfa_fcs_lport_s *port = fdmi->ms->port;
    struct bfa_fcs_fdmi_hba_attr_s hba_attr;
    struct bfa_fcs_fdmi_hba_attr_s *fcs_hba_attr = &hba_attr;
    struct fdmi_rhba_s *rhba = (struct fdmi_rhba_s *) pyld;
    struct fdmi_attr_s *attr;
    u8        *curr_ptr;
    u16        len, count;
    u16 templen;

    /*
     * get hba attributes
     */
    bfa_fcs_fdmi_get_hbaattr(fdmi, fcs_hba_attr);

    rhba->hba_id = bfa_fcs_lport_get_pwwn(port);
    rhba->port_list.num_ports = cpu_to_be32(1);
    rhba->port_list.port_entry = bfa_fcs_lport_get_pwwn(port);

    len = sizeof(rhba->hba_id) + sizeof(rhba->port_list);

    count = 0;
    len += sizeof(rhba->hba_attr_blk.attr_count);

    /*
     * fill out the invididual entries of the HBA attrib Block
     */
    curr_ptr = (u8 *) &rhba->hba_attr_blk.hba_attr;

    /*
     * Node Name
     */
    attr = (struct fdmi_attr_s *) curr_ptr;
    attr->type = cpu_to_be16(FDMI_HBA_ATTRIB_NODENAME);
    templen = sizeof(wwn_t);
    memcpy(attr->value, &bfa_fcs_lport_get_nwwn(port), templen);
    curr_ptr += sizeof(attr->type) + sizeof(templen) + templen;
    len += templen;
    count++;
    attr->len = cpu_to_be16(templen + sizeof(attr->type) +
                 sizeof(templen));

    /*
     * Manufacturer
     */
    attr = (struct fdmi_attr_s *) curr_ptr;
    attr->type = cpu_to_be16(FDMI_HBA_ATTRIB_MANUFACTURER);
    templen = (u16) strlen(fcs_hba_attr->manufacturer);
    memcpy(attr->value, fcs_hba_attr->manufacturer, templen);
    templen = fc_roundup(templen, sizeof(u32));
    curr_ptr += sizeof(attr->type) + sizeof(templen) + templen;
    len += templen;
    count++;
    attr->len = cpu_to_be16(templen + sizeof(attr->type) +
                 sizeof(templen));

    /*
     * Serial Number
     */
    attr = (struct fdmi_attr_s *) curr_ptr;
    attr->type = cpu_to_be16(FDMI_HBA_ATTRIB_SERIALNUM);
    templen = (u16) strlen(fcs_hba_attr->serial_num);
    memcpy(attr->value, fcs_hba_attr->serial_num, templen);
    templen = fc_roundup(templen, sizeof(u32));
    curr_ptr += sizeof(attr->type) + sizeof(templen) + templen;
    len += templen;
    count++;
    attr->len = cpu_to_be16(templen + sizeof(attr->type) +
                 sizeof(templen));

    /*
     * Model
     */
    attr = (struct fdmi_attr_s *) curr_ptr;
    attr->type = cpu_to_be16(FDMI_HBA_ATTRIB_MODEL);
    templen = (u16) strlen(fcs_hba_attr->model);
    memcpy(attr->value, fcs_hba_attr->model, templen);
    templen = fc_roundup(templen, sizeof(u32));
    curr_ptr += sizeof(attr->type) + sizeof(templen) + templen;
    len += templen;
    count++;
    attr->len = cpu_to_be16(templen + sizeof(attr->type) +
                 sizeof(templen));

    /*
     * Model Desc
     */
    attr = (struct fdmi_attr_s *) curr_ptr;
    attr->type = cpu_to_be16(FDMI_HBA_ATTRIB_MODEL_DESC);
    templen = (u16) strlen(fcs_hba_attr->model_desc);
    memcpy(attr->value, fcs_hba_attr->model_desc, templen);
    templen = fc_roundup(templen, sizeof(u32));
    curr_ptr += sizeof(attr->type) + sizeof(templen) + templen;
    len += templen;
    count++;
    attr->len = cpu_to_be16(templen + sizeof(attr->type) +
                 sizeof(templen));

    /*
     * H/W Version
     */
    if (fcs_hba_attr->hw_version[0] != '\0') {
        attr = (struct fdmi_attr_s *) curr_ptr;
        attr->type = cpu_to_be16(FDMI_HBA_ATTRIB_HW_VERSION);
        templen = (u16) strlen(fcs_hba_attr->hw_version);
        memcpy(attr->value, fcs_hba_attr->hw_version, templen);
        templen = fc_roundup(templen, sizeof(u32));
        curr_ptr += sizeof(attr->type) + sizeof(templen) + templen;
        len += templen;
        count++;
        attr->len = cpu_to_be16(templen + sizeof(attr->type) +
                     sizeof(templen));
    }

    /*
     * Driver Version
     */
    attr = (struct fdmi_attr_s *) curr_ptr;
    attr->type = cpu_to_be16(FDMI_HBA_ATTRIB_DRIVER_VERSION);
    templen = (u16) strlen(fcs_hba_attr->driver_version);
    memcpy(attr->value, fcs_hba_attr->driver_version, templen);
    templen = fc_roundup(templen, sizeof(u32));
    curr_ptr += sizeof(attr->type) + sizeof(templen) + templen;
    len += templen;
    count++;
    attr->len = cpu_to_be16(templen + sizeof(attr->type) +
                 sizeof(templen));

    /*
     * Option Rom Version
     */
    if (fcs_hba_attr->option_rom_ver[0] != '\0') {
        attr = (struct fdmi_attr_s *) curr_ptr;
        attr->type = cpu_to_be16(FDMI_HBA_ATTRIB_ROM_VERSION);
        templen = (u16) strlen(fcs_hba_attr->option_rom_ver);
        memcpy(attr->value, fcs_hba_attr->option_rom_ver, templen);
        templen = fc_roundup(templen, sizeof(u32));
        curr_ptr += sizeof(attr->type) + sizeof(templen) + templen;
        len += templen;
        count++;
        attr->len = cpu_to_be16(templen + sizeof(attr->type) +
                     sizeof(templen));
    }

    attr = (struct fdmi_attr_s *) curr_ptr;
    attr->type = cpu_to_be16(FDMI_HBA_ATTRIB_FW_VERSION);
    templen = (u16) strlen(fcs_hba_attr->fw_version);
    memcpy(attr->value, fcs_hba_attr->fw_version, templen);
    templen = fc_roundup(templen, sizeof(u32));
    curr_ptr += sizeof(attr->type) + sizeof(templen) + templen;
    len += templen;
    count++;
    attr->len = cpu_to_be16(templen + sizeof(attr->type) +
                 sizeof(templen));

    /*
     * OS Name
     */
    if (fcs_hba_attr->os_name[0] != '\0') {
        attr = (struct fdmi_attr_s *) curr_ptr;
        attr->type = cpu_to_be16(FDMI_HBA_ATTRIB_OS_NAME);
        templen = (u16) strlen(fcs_hba_attr->os_name);
        memcpy(attr->value, fcs_hba_attr->os_name, templen);
        templen = fc_roundup(templen, sizeof(u32));
        curr_ptr += sizeof(attr->type) + sizeof(templen) + templen;
        len += templen;
        count++;
        attr->len = cpu_to_be16(templen + sizeof(attr->type) +
                    sizeof(templen));
    }

    /*
     * MAX_CT_PAYLOAD
     */
    attr = (struct fdmi_attr_s *) curr_ptr;
    attr->type = cpu_to_be16(FDMI_HBA_ATTRIB_MAX_CT);
    templen = sizeof(fcs_hba_attr->max_ct_pyld);
    memcpy(attr->value, &fcs_hba_attr->max_ct_pyld, templen);
    len += templen;
    count++;
    attr->len = cpu_to_be16(templen + sizeof(attr->type) +
                 sizeof(templen));

    /*
     * Update size of payload
     */
    len += ((sizeof(attr->type) + sizeof(attr->len)) * count);

    rhba->hba_attr_blk.attr_count = cpu_to_be32(count);
    return len;
}

static void
bfa_fcs_lport_fdmi_rhba_response(void *fcsarg, struct bfa_fcxp_s *fcxp,
                void *cbarg, bfa_status_t req_status,
                u32 rsp_len, u32 resid_len,
                struct fchs_s *rsp_fchs)
{
    struct bfa_fcs_lport_fdmi_s *fdmi =
                (struct bfa_fcs_lport_fdmi_s *) cbarg;
    struct bfa_fcs_lport_s *port = fdmi->ms->port;
    struct ct_hdr_s *cthdr = NULL;

    bfa_trc(port->fcs, port->port_cfg.pwwn);

    /*
     * Sanity Checks
     */
    if (req_status != BFA_STATUS_OK) {
        bfa_trc(port->fcs, req_status);
        bfa_sm_send_event(fdmi, FDMISM_EVENT_RSP_ERROR);
        return;
    }

    cthdr = (struct ct_hdr_s *) BFA_FCXP_RSP_PLD(fcxp);
    cthdr->cmd_rsp_code = be16_to_cpu(cthdr->cmd_rsp_code);

    if (cthdr->cmd_rsp_code == CT_RSP_ACCEPT) {
        bfa_sm_send_event(fdmi, FDMISM_EVENT_RSP_OK);
        return;
    }

    bfa_trc(port->fcs, cthdr->reason_code);
    bfa_trc(port->fcs, cthdr->exp_code);
    bfa_sm_send_event(fdmi, FDMISM_EVENT_RSP_ERROR);
}

/*
*  RPRT : Register Port
 */
static void
bfa_fcs_lport_fdmi_send_rprt(void *fdmi_cbarg, struct bfa_fcxp_s *fcxp_alloced)
{
    struct bfa_fcs_lport_fdmi_s *fdmi = fdmi_cbarg;
    struct bfa_fcs_lport_s *port = fdmi->ms->port;
    struct fchs_s fchs;
    u16        len, attr_len;
    struct bfa_fcxp_s *fcxp;
    u8        *pyld;

    bfa_trc(port->fcs, port->port_cfg.pwwn);

    fcxp = fcxp_alloced ? fcxp_alloced :
           bfa_fcs_fcxp_alloc(port->fcs, BFA_TRUE);
    if (!fcxp) {
        bfa_fcs_fcxp_alloc_wait(port->fcs->bfa, &fdmi->fcxp_wqe,
                bfa_fcs_lport_fdmi_send_rprt, fdmi, BFA_TRUE);
        return;
    }
    fdmi->fcxp = fcxp;

    pyld = bfa_fcxp_get_reqbuf(fcxp);
    memset(pyld, 0, FC_MAX_PDUSZ);

    len = fc_fdmi_reqhdr_build(&fchs, pyld, bfa_fcs_lport_get_fcid(port),
                   FDMI_RPRT);

    attr_len =
        bfa_fcs_lport_fdmi_build_rprt_pyld(fdmi,
                      (u8 *) ((struct ct_hdr_s *) pyld
                               + 1));

    bfa_fcxp_send(fcxp, NULL, port->fabric->vf_id, port->lp_tag, BFA_FALSE,
              FC_CLASS_3, len + attr_len, &fchs,
              bfa_fcs_lport_fdmi_rprt_response, (void *)fdmi,
              FC_MAX_PDUSZ, FC_FCCT_TOV);

    bfa_sm_send_event(fdmi, FDMISM_EVENT_RPRT_SENT);
}

/*
 * This routine builds Port Attribute Block that used in RPA, RPRT commands.
 */
static          u16
bfa_fcs_lport_fdmi_build_portattr_block(struct bfa_fcs_lport_fdmi_s *fdmi,
                       u8 *pyld)
{
    struct bfa_fcs_fdmi_port_attr_s fcs_port_attr;
    struct fdmi_port_attr_s *port_attrib = (struct fdmi_port_attr_s *) pyld;
    struct fdmi_attr_s *attr;
    u8        *curr_ptr;
    u16        len;
    u8  count = 0;
    u16 templen;

    /*
     * get port attributes
     */
    bfa_fcs_fdmi_get_portattr(fdmi, &fcs_port_attr);

    len = sizeof(port_attrib->attr_count);

    /*
     * fill out the invididual entries
     */
    curr_ptr = (u8 *) &port_attrib->port_attr;

    /*
     * FC4 Types
     */
    attr = (struct fdmi_attr_s *) curr_ptr;
    attr->type = cpu_to_be16(FDMI_PORT_ATTRIB_FC4_TYPES);
    templen = sizeof(fcs_port_attr.supp_fc4_types);
    memcpy(attr->value, fcs_port_attr.supp_fc4_types, templen);
    curr_ptr += sizeof(attr->type) + sizeof(templen) + templen;
    len += templen;
    ++count;
    attr->len =
        cpu_to_be16(templen + sizeof(attr->type) +
                 sizeof(templen));

    /*
     * Supported Speed
     */
    attr = (struct fdmi_attr_s *) curr_ptr;
    attr->type = cpu_to_be16(FDMI_PORT_ATTRIB_SUPP_SPEED);
    templen = sizeof(fcs_port_attr.supp_speed);
    memcpy(attr->value, &fcs_port_attr.supp_speed, templen);
    curr_ptr += sizeof(attr->type) + sizeof(templen) + templen;
    len += templen;
    ++count;
    attr->len =
        cpu_to_be16(templen + sizeof(attr->type) +
                 sizeof(templen));

    /*
     * current Port Speed
     */
    attr = (struct fdmi_attr_s *) curr_ptr;
    attr->type = cpu_to_be16(FDMI_PORT_ATTRIB_PORT_SPEED);
    templen = sizeof(fcs_port_attr.curr_speed);
    memcpy(attr->value, &fcs_port_attr.curr_speed, templen);
    curr_ptr += sizeof(attr->type) + sizeof(templen) + templen;
    len += templen;
    ++count;
    attr->len = cpu_to_be16(templen + sizeof(attr->type) +
                 sizeof(templen));

    /*
     * max frame size
     */
    attr = (struct fdmi_attr_s *) curr_ptr;
    attr->type = cpu_to_be16(FDMI_PORT_ATTRIB_FRAME_SIZE);
    templen = sizeof(fcs_port_attr.max_frm_size);
    memcpy(attr->value, &fcs_port_attr.max_frm_size, templen);
    curr_ptr += sizeof(attr->type) + sizeof(templen) + templen;
    len += templen;
    ++count;
    attr->len = cpu_to_be16(templen + sizeof(attr->type) +
                 sizeof(templen));

    /*
     * OS Device Name
     */
    if (fcs_port_attr.os_device_name[0] != '\0') {
        attr = (struct fdmi_attr_s *) curr_ptr;
        attr->type = cpu_to_be16(FDMI_PORT_ATTRIB_DEV_NAME);
        templen = (u16) strlen(fcs_port_attr.os_device_name);
        memcpy(attr->value, fcs_port_attr.os_device_name, templen);
        templen = fc_roundup(templen, sizeof(u32));
        curr_ptr += sizeof(attr->type) + sizeof(templen) + templen;
        len += templen;
        ++count;
        attr->len = cpu_to_be16(templen + sizeof(attr->type) +
                    sizeof(templen));
    }
    /*
     * Host Name
     */
    if (fcs_port_attr.host_name[0] != '\0') {
        attr = (struct fdmi_attr_s *) curr_ptr;
        attr->type = cpu_to_be16(FDMI_PORT_ATTRIB_HOST_NAME);
        templen = (u16) strlen(fcs_port_attr.host_name);
        memcpy(attr->value, fcs_port_attr.host_name, templen);
        templen = fc_roundup(templen, sizeof(u32));
        curr_ptr += sizeof(attr->type) + sizeof(templen) + templen;
        len += templen;
        ++count;
        attr->len = cpu_to_be16(templen + sizeof(attr->type) +
                sizeof(templen));
    }

    /*
     * Update size of payload
     */
    port_attrib->attr_count = cpu_to_be32(count);
    len += ((sizeof(attr->type) + sizeof(attr->len)) * count);
    return len;
}

static          u16
bfa_fcs_lport_fdmi_build_rprt_pyld(struct bfa_fcs_lport_fdmi_s *fdmi, u8 *pyld)
{
    struct bfa_fcs_lport_s *port = fdmi->ms->port;
    struct fdmi_rprt_s *rprt = (struct fdmi_rprt_s *) pyld;
    u16        len;

    rprt->hba_id = bfa_fcs_lport_get_pwwn(bfa_fcs_get_base_port(port->fcs));
    rprt->port_name = bfa_fcs_lport_get_pwwn(port);

    len = bfa_fcs_lport_fdmi_build_portattr_block(fdmi,
                (u8 *) &rprt->port_attr_blk);

    len += sizeof(rprt->hba_id) + sizeof(rprt->port_name);

    return len;
}

static void
bfa_fcs_lport_fdmi_rprt_response(void *fcsarg, struct bfa_fcxp_s *fcxp,
                void *cbarg, bfa_status_t req_status,
                u32 rsp_len, u32 resid_len,
                struct fchs_s *rsp_fchs)
{
    struct bfa_fcs_lport_fdmi_s *fdmi =
            (struct bfa_fcs_lport_fdmi_s *) cbarg;
    struct bfa_fcs_lport_s *port = fdmi->ms->port;
    struct ct_hdr_s *cthdr = NULL;

    bfa_trc(port->fcs, port->port_cfg.pwwn);

    /*
     * Sanity Checks
     */
    if (req_status != BFA_STATUS_OK) {
        bfa_trc(port->fcs, req_status);
        bfa_sm_send_event(fdmi, FDMISM_EVENT_RSP_ERROR);
        return;
    }

    cthdr = (struct ct_hdr_s *) BFA_FCXP_RSP_PLD(fcxp);
    cthdr->cmd_rsp_code = be16_to_cpu(cthdr->cmd_rsp_code);

    if (cthdr->cmd_rsp_code == CT_RSP_ACCEPT) {
        bfa_sm_send_event(fdmi, FDMISM_EVENT_RSP_OK);
        return;
    }

    bfa_trc(port->fcs, cthdr->reason_code);
    bfa_trc(port->fcs, cthdr->exp_code);
    bfa_sm_send_event(fdmi, FDMISM_EVENT_RSP_ERROR);
}

/*
*  RPA : Register Port Attributes.
 */
static void
bfa_fcs_lport_fdmi_send_rpa(void *fdmi_cbarg, struct bfa_fcxp_s *fcxp_alloced)
{
    struct bfa_fcs_lport_fdmi_s *fdmi = fdmi_cbarg;
    struct bfa_fcs_lport_s *port = fdmi->ms->port;
    struct fchs_s fchs;
    u16        len, attr_len;
    struct bfa_fcxp_s *fcxp;
    u8        *pyld;

    bfa_trc(port->fcs, port->port_cfg.pwwn);

    fcxp = fcxp_alloced ? fcxp_alloced :
           bfa_fcs_fcxp_alloc(port->fcs, BFA_TRUE);
    if (!fcxp) {
        bfa_fcs_fcxp_alloc_wait(port->fcs->bfa, &fdmi->fcxp_wqe,
                bfa_fcs_lport_fdmi_send_rpa, fdmi, BFA_TRUE);
        return;
    }
    fdmi->fcxp = fcxp;

    pyld = bfa_fcxp_get_reqbuf(fcxp);
    memset(pyld, 0, FC_MAX_PDUSZ);

    len = fc_fdmi_reqhdr_build(&fchs, pyld, bfa_fcs_lport_get_fcid(port),
                   FDMI_RPA);

    attr_len = bfa_fcs_lport_fdmi_build_rpa_pyld(fdmi,
                (u8 *) ((struct ct_hdr_s *) pyld + 1));

    bfa_fcxp_send(fcxp, NULL, port->fabric->vf_id, port->lp_tag, BFA_FALSE,
              FC_CLASS_3, len + attr_len, &fchs,
              bfa_fcs_lport_fdmi_rpa_response, (void *)fdmi,
              FC_MAX_PDUSZ, FC_FCCT_TOV);

    bfa_sm_send_event(fdmi, FDMISM_EVENT_RPA_SENT);
}

static          u16
bfa_fcs_lport_fdmi_build_rpa_pyld(struct bfa_fcs_lport_fdmi_s *fdmi, u8 *pyld)
{
    struct bfa_fcs_lport_s *port = fdmi->ms->port;
    struct fdmi_rpa_s *rpa = (struct fdmi_rpa_s *) pyld;
    u16        len;

    rpa->port_name = bfa_fcs_lport_get_pwwn(port);

    len = bfa_fcs_lport_fdmi_build_portattr_block(fdmi,
                (u8 *) &rpa->port_attr_blk);

    len += sizeof(rpa->port_name);

    return len;
}

static void
bfa_fcs_lport_fdmi_rpa_response(void *fcsarg, struct bfa_fcxp_s *fcxp,
            void *cbarg, bfa_status_t req_status, u32 rsp_len,
            u32 resid_len, struct fchs_s *rsp_fchs)
{
    struct bfa_fcs_lport_fdmi_s *fdmi =
                (struct bfa_fcs_lport_fdmi_s *) cbarg;
    struct bfa_fcs_lport_s *port = fdmi->ms->port;
    struct ct_hdr_s *cthdr = NULL;

    bfa_trc(port->fcs, port->port_cfg.pwwn);

    /*
     * Sanity Checks
     */
    if (req_status != BFA_STATUS_OK) {
        bfa_trc(port->fcs, req_status);
        bfa_sm_send_event(fdmi, FDMISM_EVENT_RSP_ERROR);
        return;
    }

    cthdr = (struct ct_hdr_s *) BFA_FCXP_RSP_PLD(fcxp);
    cthdr->cmd_rsp_code = be16_to_cpu(cthdr->cmd_rsp_code);

    if (cthdr->cmd_rsp_code == CT_RSP_ACCEPT) {
        bfa_sm_send_event(fdmi, FDMISM_EVENT_RSP_OK);
        return;
    }

    bfa_trc(port->fcs, cthdr->reason_code);
    bfa_trc(port->fcs, cthdr->exp_code);
    bfa_sm_send_event(fdmi, FDMISM_EVENT_RSP_ERROR);
}

static void
bfa_fcs_lport_fdmi_timeout(void *arg)
{
    struct bfa_fcs_lport_fdmi_s *fdmi = (struct bfa_fcs_lport_fdmi_s *) arg;

    bfa_sm_send_event(fdmi, FDMISM_EVENT_TIMEOUT);
}

static void
bfa_fcs_fdmi_get_hbaattr(struct bfa_fcs_lport_fdmi_s *fdmi,
             struct bfa_fcs_fdmi_hba_attr_s *hba_attr)
{
    struct bfa_fcs_lport_s *port = fdmi->ms->port;
    struct bfa_fcs_driver_info_s  *driver_info = &port->fcs->driver_info;
    struct bfa_fcs_fdmi_port_attr_s fcs_port_attr;

    memset(hba_attr, 0, sizeof(struct bfa_fcs_fdmi_hba_attr_s));

    bfa_ioc_get_adapter_manufacturer(&port->fcs->bfa->ioc,
                    hba_attr->manufacturer);
    bfa_ioc_get_adapter_serial_num(&port->fcs->bfa->ioc,
                    hba_attr->serial_num);
    bfa_ioc_get_adapter_model(&port->fcs->bfa->ioc,
                    hba_attr->model);
    bfa_ioc_get_adapter_model(&port->fcs->bfa->ioc,
                    hba_attr->model_desc);
    bfa_ioc_get_pci_chip_rev(&port->fcs->bfa->ioc,
                    hba_attr->hw_version);
    bfa_ioc_get_adapter_optrom_ver(&port->fcs->bfa->ioc,
                    hba_attr->option_rom_ver);
    bfa_ioc_get_adapter_fw_ver(&port->fcs->bfa->ioc,
                    hba_attr->fw_version);

    strncpy(hba_attr->driver_version, (char *)driver_info->version,
        sizeof(hba_attr->driver_version));

    strncpy(hba_attr->os_name, driver_info->host_os_name,
        sizeof(hba_attr->os_name));

    /*
     * If there is a patch level, append it
     * to the os name along with a separator
     */
    if (driver_info->host_os_patch[0] != '\0') {
        strncat(hba_attr->os_name, BFA_FCS_PORT_SYMBNAME_SEPARATOR,
            sizeof(BFA_FCS_PORT_SYMBNAME_SEPARATOR));
        strncat(hba_attr->os_name, driver_info->host_os_patch,
                sizeof(driver_info->host_os_patch));
    }

    /* Retrieve the max frame size from the port attr */
    bfa_fcs_fdmi_get_portattr(fdmi, &fcs_port_attr);
    hba_attr->max_ct_pyld = fcs_port_attr.max_frm_size;
}

static void
bfa_fcs_fdmi_get_portattr(struct bfa_fcs_lport_fdmi_s *fdmi,
              struct bfa_fcs_fdmi_port_attr_s *port_attr)
{
    struct bfa_fcs_lport_s *port = fdmi->ms->port;
    struct bfa_fcs_driver_info_s  *driver_info = &port->fcs->driver_info;
    struct bfa_port_attr_s pport_attr;

    memset(port_attr, 0, sizeof(struct bfa_fcs_fdmi_port_attr_s));

    /*
     * get pport attributes from hal
     */
    bfa_fcport_get_attr(port->fcs->bfa, &pport_attr);

    /*
     * get FC4 type Bitmask
     */
    fc_get_fc4type_bitmask(FC_TYPE_FCP, port_attr->supp_fc4_types);

    /*
     * Supported Speeds
     */
    switch (pport_attr.speed_supported) {
    case BFA_PORT_SPEED_16GBPS:
        port_attr->supp_speed =
            cpu_to_be32(BFA_FCS_FDMI_SUPP_SPEEDS_16G);
        break;

    case BFA_PORT_SPEED_10GBPS:
        port_attr->supp_speed =
            cpu_to_be32(BFA_FCS_FDMI_SUPP_SPEEDS_10G);
        break;

    case BFA_PORT_SPEED_8GBPS:
        port_attr->supp_speed =
            cpu_to_be32(BFA_FCS_FDMI_SUPP_SPEEDS_8G);
        break;

    case BFA_PORT_SPEED_4GBPS:
        port_attr->supp_speed =
            cpu_to_be32(BFA_FCS_FDMI_SUPP_SPEEDS_4G);
        break;

    default:
        bfa_sm_fault(port->fcs, pport_attr.speed_supported);
    }

    /*
     * Current Speed
     */
    port_attr->curr_speed = cpu_to_be32(
                bfa_fcs_fdmi_convert_speed(pport_attr.speed));

    /*
     * Max PDU Size.
     */
    port_attr->max_frm_size = cpu_to_be32(pport_attr.pport_cfg.maxfrsize);

    /*
     * OS device Name
     */
    strncpy(port_attr->os_device_name, (char *)driver_info->os_device_name,
        sizeof(port_attr->os_device_name));

    /*
     * Host name
     */
    strncpy(port_attr->host_name, (char *)driver_info->host_machine_name,
        sizeof(port_attr->host_name));

}

/*
 * Convert BFA speed to FDMI format.
 */
u32
bfa_fcs_fdmi_convert_speed(bfa_port_speed_t pport_speed)
{
    u32 ret;

    switch (pport_speed) {
    case BFA_PORT_SPEED_1GBPS:
    case BFA_PORT_SPEED_2GBPS:
        ret = pport_speed;
        break;

    case BFA_PORT_SPEED_4GBPS:
        ret = FDMI_TRANS_SPEED_4G;
        break;

    case BFA_PORT_SPEED_8GBPS:
        ret = FDMI_TRANS_SPEED_8G;
        break;

    case BFA_PORT_SPEED_10GBPS:
        ret = FDMI_TRANS_SPEED_10G;
        break;

    case BFA_PORT_SPEED_16GBPS:
        ret = FDMI_TRANS_SPEED_16G;
        break;

    default:
        ret = FDMI_TRANS_SPEED_UNKNOWN;
    }
    return ret;
}

void
bfa_fcs_lport_fdmi_init(struct bfa_fcs_lport_ms_s *ms)
{
    struct bfa_fcs_lport_fdmi_s *fdmi = &ms->fdmi;

    fdmi->ms = ms;
    if (ms->port->fcs->fdmi_enabled)
        bfa_sm_set_state(fdmi, bfa_fcs_lport_fdmi_sm_offline);
    else
        bfa_sm_set_state(fdmi, bfa_fcs_lport_fdmi_sm_disabled);
}

void
bfa_fcs_lport_fdmi_offline(struct bfa_fcs_lport_ms_s *ms)
{
    struct bfa_fcs_lport_fdmi_s *fdmi = &ms->fdmi;

    fdmi->ms = ms;
    bfa_sm_send_event(fdmi, FDMISM_EVENT_PORT_OFFLINE);
}

void
bfa_fcs_lport_fdmi_online(struct bfa_fcs_lport_ms_s *ms)
{
    struct bfa_fcs_lport_fdmi_s *fdmi = &ms->fdmi;

    fdmi->ms = ms;
    bfa_sm_send_event(fdmi, FDMISM_EVENT_PORT_ONLINE);
}

#define BFA_FCS_MS_CMD_MAX_RETRIES  2

/*
 * forward declarations
 */
static void     bfa_fcs_lport_ms_send_plogi(void *ms_cbarg,
                       struct bfa_fcxp_s *fcxp_alloced);
static void     bfa_fcs_lport_ms_timeout(void *arg);
static void     bfa_fcs_lport_ms_plogi_response(void *fcsarg,
                           struct bfa_fcxp_s *fcxp,
                           void *cbarg,
                           bfa_status_t req_status,
                           u32 rsp_len,
                           u32 resid_len,
                           struct fchs_s *rsp_fchs);

static void bfa_fcs_lport_ms_send_gmal(void *ms_cbarg,
                    struct bfa_fcxp_s *fcxp_alloced);
static void     bfa_fcs_lport_ms_gmal_response(void *fcsarg,
                           struct bfa_fcxp_s *fcxp,
                           void *cbarg,
                           bfa_status_t req_status,
                           u32 rsp_len,
                           u32 resid_len,
                           struct fchs_s *rsp_fchs);
static void bfa_fcs_lport_ms_send_gfn(void *ms_cbarg,
                    struct bfa_fcxp_s *fcxp_alloced);
static void     bfa_fcs_lport_ms_gfn_response(void *fcsarg,
                           struct bfa_fcxp_s *fcxp,
                           void *cbarg,
                           bfa_status_t req_status,
                           u32 rsp_len,
                           u32 resid_len,
                           struct fchs_s *rsp_fchs);
/*
 *  fcs_ms_sm FCS MS state machine
 */

/*
 *  MS State Machine events
 */
enum port_ms_event {
    MSSM_EVENT_PORT_ONLINE = 1,
    MSSM_EVENT_PORT_OFFLINE = 2,
    MSSM_EVENT_RSP_OK = 3,
    MSSM_EVENT_RSP_ERROR = 4,
    MSSM_EVENT_TIMEOUT = 5,
    MSSM_EVENT_FCXP_SENT = 6,
    MSSM_EVENT_PORT_FABRIC_RSCN = 7
};

static void     bfa_fcs_lport_ms_sm_offline(struct bfa_fcs_lport_ms_s *ms,
                       enum port_ms_event event);
static void     bfa_fcs_lport_ms_sm_plogi_sending(struct bfa_fcs_lport_ms_s *ms,
                         enum port_ms_event event);
static void     bfa_fcs_lport_ms_sm_plogi(struct bfa_fcs_lport_ms_s *ms,
                     enum port_ms_event event);
static void     bfa_fcs_lport_ms_sm_plogi_retry(struct bfa_fcs_lport_ms_s *ms,
                           enum port_ms_event event);
static void     bfa_fcs_lport_ms_sm_gmal_sending(struct bfa_fcs_lport_ms_s *ms,
                         enum port_ms_event event);
static void     bfa_fcs_lport_ms_sm_gmal(struct bfa_fcs_lport_ms_s *ms,
                     enum port_ms_event event);
static void     bfa_fcs_lport_ms_sm_gmal_retry(struct bfa_fcs_lport_ms_s *ms,
                           enum port_ms_event event);
static void     bfa_fcs_lport_ms_sm_gfn_sending(struct bfa_fcs_lport_ms_s *ms,
                         enum port_ms_event event);
static void     bfa_fcs_lport_ms_sm_gfn(struct bfa_fcs_lport_ms_s *ms,
                     enum port_ms_event event);
static void     bfa_fcs_lport_ms_sm_gfn_retry(struct bfa_fcs_lport_ms_s *ms,
                           enum port_ms_event event);
static void     bfa_fcs_lport_ms_sm_online(struct bfa_fcs_lport_ms_s *ms,
                      enum port_ms_event event);
/*
 *  Start in offline state - awaiting NS to send start.
 */
static void
bfa_fcs_lport_ms_sm_offline(struct bfa_fcs_lport_ms_s *ms,
                enum port_ms_event event)
{
    bfa_trc(ms->port->fcs, ms->port->port_cfg.pwwn);
    bfa_trc(ms->port->fcs, event);

    switch (event) {
    case MSSM_EVENT_PORT_ONLINE:
        bfa_sm_set_state(ms, bfa_fcs_lport_ms_sm_plogi_sending);
        bfa_fcs_lport_ms_send_plogi(ms, NULL);
        break;

    case MSSM_EVENT_PORT_OFFLINE:
        break;

    default:
        bfa_sm_fault(ms->port->fcs, event);
    }
}

static void
bfa_fcs_lport_ms_sm_plogi_sending(struct bfa_fcs_lport_ms_s *ms,
                enum port_ms_event event)
{
    bfa_trc(ms->port->fcs, ms->port->port_cfg.pwwn);
    bfa_trc(ms->port->fcs, event);

    switch (event) {
    case MSSM_EVENT_FCXP_SENT:
        bfa_sm_set_state(ms, bfa_fcs_lport_ms_sm_plogi);
        break;

    case MSSM_EVENT_PORT_OFFLINE:
        bfa_sm_set_state(ms, bfa_fcs_lport_ms_sm_offline);
        bfa_fcxp_walloc_cancel(BFA_FCS_GET_HAL_FROM_PORT(ms->port),
                       &ms->fcxp_wqe);
        break;

    default:
        bfa_sm_fault(ms->port->fcs, event);
    }
}

static void
bfa_fcs_lport_ms_sm_plogi(struct bfa_fcs_lport_ms_s *ms,
            enum port_ms_event event)
{
    bfa_trc(ms->port->fcs, ms->port->port_cfg.pwwn);
    bfa_trc(ms->port->fcs, event);

    switch (event) {
    case MSSM_EVENT_RSP_ERROR:
        /*
         * Start timer for a delayed retry
         */
        bfa_sm_set_state(ms, bfa_fcs_lport_ms_sm_plogi_retry);
        ms->port->stats.ms_retries++;
        bfa_timer_start(BFA_FCS_GET_HAL_FROM_PORT(ms->port),
                    &ms->timer, bfa_fcs_lport_ms_timeout, ms,
                    BFA_FCS_RETRY_TIMEOUT);
        break;

    case MSSM_EVENT_RSP_OK:
        /*
         * since plogi is done, now invoke MS related sub-modules
         */
        bfa_fcs_lport_fdmi_online(ms);

        /*
         * if this is a Vport, go to online state.
         */
        if (ms->port->vport) {
            bfa_sm_set_state(ms, bfa_fcs_lport_ms_sm_online);
            break;
        }

        /*
         * For a base port we need to get the
         * switch's IP address.
         */
        bfa_sm_set_state(ms, bfa_fcs_lport_ms_sm_gmal_sending);
        bfa_fcs_lport_ms_send_gmal(ms, NULL);
        break;

    case MSSM_EVENT_PORT_OFFLINE:
        bfa_sm_set_state(ms, bfa_fcs_lport_ms_sm_offline);
        bfa_fcxp_discard(ms->fcxp);
        break;

    default:
        bfa_sm_fault(ms->port->fcs, event);
    }
}

static void
bfa_fcs_lport_ms_sm_plogi_retry(struct bfa_fcs_lport_ms_s *ms,
            enum port_ms_event event)
{
    bfa_trc(ms->port->fcs, ms->port->port_cfg.pwwn);
    bfa_trc(ms->port->fcs, event);

    switch (event) {
    case MSSM_EVENT_TIMEOUT:
        /*
         * Retry Timer Expired. Re-send
         */
        bfa_sm_set_state(ms, bfa_fcs_lport_ms_sm_plogi_sending);
        bfa_fcs_lport_ms_send_plogi(ms, NULL);
        break;

    case MSSM_EVENT_PORT_OFFLINE:
        bfa_sm_set_state(ms, bfa_fcs_lport_ms_sm_offline);
        bfa_timer_stop(&ms->timer);
        break;

    default:
        bfa_sm_fault(ms->port->fcs, event);
    }
}

static void
bfa_fcs_lport_ms_sm_online(struct bfa_fcs_lport_ms_s *ms,
            enum port_ms_event event)
{
    bfa_trc(ms->port->fcs, ms->port->port_cfg.pwwn);
    bfa_trc(ms->port->fcs, event);

    switch (event) {
    case MSSM_EVENT_PORT_OFFLINE:
        bfa_sm_set_state(ms, bfa_fcs_lport_ms_sm_offline);
        break;

    case MSSM_EVENT_PORT_FABRIC_RSCN:
        bfa_sm_set_state(ms, bfa_fcs_lport_ms_sm_gfn_sending);
        ms->retry_cnt = 0;
        bfa_fcs_lport_ms_send_gfn(ms, NULL);
        break;

    default:
        bfa_sm_fault(ms->port->fcs, event);
    }
}

static void
bfa_fcs_lport_ms_sm_gmal_sending(struct bfa_fcs_lport_ms_s *ms,
                enum port_ms_event event)
{
    bfa_trc(ms->port->fcs, ms->port->port_cfg.pwwn);
    bfa_trc(ms->port->fcs, event);

    switch (event) {
    case MSSM_EVENT_FCXP_SENT:
        bfa_sm_set_state(ms, bfa_fcs_lport_ms_sm_gmal);
        break;

    case MSSM_EVENT_PORT_OFFLINE:
        bfa_sm_set_state(ms, bfa_fcs_lport_ms_sm_offline);
        bfa_fcxp_walloc_cancel(BFA_FCS_GET_HAL_FROM_PORT(ms->port),
                       &ms->fcxp_wqe);
        break;

    default:
        bfa_sm_fault(ms->port->fcs, event);
    }
}

static void
bfa_fcs_lport_ms_sm_gmal(struct bfa_fcs_lport_ms_s *ms,
                enum port_ms_event event)
{
    bfa_trc(ms->port->fcs, ms->port->port_cfg.pwwn);
    bfa_trc(ms->port->fcs, event);

    switch (event) {
    case MSSM_EVENT_RSP_ERROR:
        /*
         * Start timer for a delayed retry
         */
        if (ms->retry_cnt++ < BFA_FCS_MS_CMD_MAX_RETRIES) {
            bfa_sm_set_state(ms, bfa_fcs_lport_ms_sm_gmal_retry);
            ms->port->stats.ms_retries++;
            bfa_timer_start(BFA_FCS_GET_HAL_FROM_PORT(ms->port),
                &ms->timer, bfa_fcs_lport_ms_timeout, ms,
                BFA_FCS_RETRY_TIMEOUT);
        } else {
            bfa_sm_set_state(ms, bfa_fcs_lport_ms_sm_gfn_sending);
            bfa_fcs_lport_ms_send_gfn(ms, NULL);
            ms->retry_cnt = 0;
        }
        break;

    case MSSM_EVENT_RSP_OK:
        bfa_sm_set_state(ms, bfa_fcs_lport_ms_sm_gfn_sending);
        bfa_fcs_lport_ms_send_gfn(ms, NULL);
        break;

    case MSSM_EVENT_PORT_OFFLINE:
        bfa_sm_set_state(ms, bfa_fcs_lport_ms_sm_offline);
        bfa_fcxp_discard(ms->fcxp);
        break;

    default:
        bfa_sm_fault(ms->port->fcs, event);
    }
}

static void
bfa_fcs_lport_ms_sm_gmal_retry(struct bfa_fcs_lport_ms_s *ms,
                enum port_ms_event event)
{
    bfa_trc(ms->port->fcs, ms->port->port_cfg.pwwn);
    bfa_trc(ms->port->fcs, event);

    switch (event) {
    case MSSM_EVENT_TIMEOUT:
        /*
         * Retry Timer Expired. Re-send
         */
        bfa_sm_set_state(ms, bfa_fcs_lport_ms_sm_gmal_sending);
        bfa_fcs_lport_ms_send_gmal(ms, NULL);
        break;

    case MSSM_EVENT_PORT_OFFLINE:
        bfa_sm_set_state(ms, bfa_fcs_lport_ms_sm_offline);
        bfa_timer_stop(&ms->timer);
        break;

    default:
        bfa_sm_fault(ms->port->fcs, event);
    }
}
/*
 *  ms_pvt MS local functions
 */

static void
bfa_fcs_lport_ms_send_gmal(void *ms_cbarg, struct bfa_fcxp_s *fcxp_alloced)
{
    struct bfa_fcs_lport_ms_s *ms = ms_cbarg;
    bfa_fcs_lport_t *port = ms->port;
    struct fchs_s   fchs;
    int     len;
    struct bfa_fcxp_s *fcxp;

    bfa_trc(port->fcs, port->pid);

    fcxp = fcxp_alloced ? fcxp_alloced :
           bfa_fcs_fcxp_alloc(port->fcs, BFA_TRUE);
    if (!fcxp) {
        bfa_fcs_fcxp_alloc_wait(port->fcs->bfa, &ms->fcxp_wqe,
                bfa_fcs_lport_ms_send_gmal, ms, BFA_TRUE);
        return;
    }
    ms->fcxp = fcxp;

    len = fc_gmal_req_build(&fchs, bfa_fcxp_get_reqbuf(fcxp),
                 bfa_fcs_lport_get_fcid(port),
                 port->fabric->lps->pr_nwwn);

    bfa_fcxp_send(fcxp, NULL, port->fabric->vf_id, port->lp_tag, BFA_FALSE,
              FC_CLASS_3, len, &fchs,
              bfa_fcs_lport_ms_gmal_response, (void *)ms,
              FC_MAX_PDUSZ, FC_FCCT_TOV);

    bfa_sm_send_event(ms, MSSM_EVENT_FCXP_SENT);
}

static void
bfa_fcs_lport_ms_gmal_response(void *fcsarg, struct bfa_fcxp_s *fcxp,
                void *cbarg, bfa_status_t req_status,
                u32 rsp_len, u32 resid_len,
                struct fchs_s *rsp_fchs)
{
    struct bfa_fcs_lport_ms_s *ms = (struct bfa_fcs_lport_ms_s *) cbarg;
    bfa_fcs_lport_t *port = ms->port;
    struct ct_hdr_s     *cthdr = NULL;
    struct fcgs_gmal_resp_s *gmal_resp;
    struct fcgs_gmal_entry_s *gmal_entry;
    u32     num_entries;
    u8          *rsp_str;

    bfa_trc(port->fcs, req_status);
    bfa_trc(port->fcs, port->port_cfg.pwwn);

    /*
     * Sanity Checks
     */
    if (req_status != BFA_STATUS_OK) {
        bfa_trc(port->fcs, req_status);
        bfa_sm_send_event(ms, MSSM_EVENT_RSP_ERROR);
        return;
    }

    cthdr = (struct ct_hdr_s *) BFA_FCXP_RSP_PLD(fcxp);
    cthdr->cmd_rsp_code = be16_to_cpu(cthdr->cmd_rsp_code);

    if (cthdr->cmd_rsp_code == CT_RSP_ACCEPT) {
        gmal_resp = (struct fcgs_gmal_resp_s *)(cthdr + 1);

        num_entries = be32_to_cpu(gmal_resp->ms_len);
        if (num_entries == 0) {
            bfa_sm_send_event(ms, MSSM_EVENT_RSP_ERROR);
            return;
        }
        /*
        * The response could contain multiple Entries.
        * Entries for SNMP interface, etc.
        * We look for the entry with a telnet prefix.
        * First "http://" entry refers to IP addr
        */

        gmal_entry = (struct fcgs_gmal_entry_s *)gmal_resp->ms_ma;
        while (num_entries > 0) {
            if (strncmp(gmal_entry->prefix,
                CT_GMAL_RESP_PREFIX_HTTP,
                sizeof(gmal_entry->prefix)) == 0) {

                /*
                * if the IP address is terminating with a '/',
                * remove it.
                * Byte 0 consists of the length of the string.
                */
                rsp_str = &(gmal_entry->prefix[0]);
                if (rsp_str[gmal_entry->len-1] == '/')
                    rsp_str[gmal_entry->len-1] = 0;

                /* copy IP Address to fabric */
                strncpy(bfa_fcs_lport_get_fabric_ipaddr(port),
                    gmal_entry->ip_addr,
                    BFA_FCS_FABRIC_IPADDR_SZ);
                break;
            } else {
                --num_entries;
                ++gmal_entry;
            }
        }

        bfa_sm_send_event(ms, MSSM_EVENT_RSP_OK);
        return;
    }

    bfa_trc(port->fcs, cthdr->reason_code);
    bfa_trc(port->fcs, cthdr->exp_code);
    bfa_sm_send_event(ms, MSSM_EVENT_RSP_ERROR);
}

static void
bfa_fcs_lport_ms_sm_gfn_sending(struct bfa_fcs_lport_ms_s *ms,
            enum port_ms_event event)
{
    bfa_trc(ms->port->fcs, ms->port->port_cfg.pwwn);
    bfa_trc(ms->port->fcs, event);

    switch (event) {
    case MSSM_EVENT_FCXP_SENT:
        bfa_sm_set_state(ms, bfa_fcs_lport_ms_sm_gfn);
        break;

    case MSSM_EVENT_PORT_OFFLINE:
        bfa_sm_set_state(ms, bfa_fcs_lport_ms_sm_offline);
        bfa_fcxp_walloc_cancel(BFA_FCS_GET_HAL_FROM_PORT(ms->port),
                       &ms->fcxp_wqe);
        break;

    default:
        bfa_sm_fault(ms->port->fcs, event);
    }
}

static void
bfa_fcs_lport_ms_sm_gfn(struct bfa_fcs_lport_ms_s *ms,
            enum port_ms_event event)
{
    bfa_trc(ms->port->fcs, ms->port->port_cfg.pwwn);
    bfa_trc(ms->port->fcs, event);

    switch (event) {
    case MSSM_EVENT_RSP_ERROR:
        /*
         * Start timer for a delayed retry
         */
        if (ms->retry_cnt++ < BFA_FCS_MS_CMD_MAX_RETRIES) {
            bfa_sm_set_state(ms, bfa_fcs_lport_ms_sm_gfn_retry);
            ms->port->stats.ms_retries++;
            bfa_timer_start(BFA_FCS_GET_HAL_FROM_PORT(ms->port),
                &ms->timer, bfa_fcs_lport_ms_timeout, ms,
                BFA_FCS_RETRY_TIMEOUT);
        } else {
            bfa_sm_set_state(ms, bfa_fcs_lport_ms_sm_online);
            ms->retry_cnt = 0;
        }
        break;

    case MSSM_EVENT_RSP_OK:
        bfa_sm_set_state(ms, bfa_fcs_lport_ms_sm_online);
        break;

    case MSSM_EVENT_PORT_OFFLINE:
        bfa_sm_set_state(ms, bfa_fcs_lport_ms_sm_offline);
        bfa_fcxp_discard(ms->fcxp);
        break;

    default:
        bfa_sm_fault(ms->port->fcs, event);
    }
}

static void
bfa_fcs_lport_ms_sm_gfn_retry(struct bfa_fcs_lport_ms_s *ms,
                enum port_ms_event event)
{
    bfa_trc(ms->port->fcs, ms->port->port_cfg.pwwn);
    bfa_trc(ms->port->fcs, event);

    switch (event) {
    case MSSM_EVENT_TIMEOUT:
        /*
         * Retry Timer Expired. Re-send
         */
        bfa_sm_set_state(ms, bfa_fcs_lport_ms_sm_gfn_sending);
        bfa_fcs_lport_ms_send_gfn(ms, NULL);
        break;

    case MSSM_EVENT_PORT_OFFLINE:
        bfa_sm_set_state(ms, bfa_fcs_lport_ms_sm_offline);
        bfa_timer_stop(&ms->timer);
        break;

    default:
        bfa_sm_fault(ms->port->fcs, event);
    }
}
/*
 *  ms_pvt MS local functions
 */

static void
bfa_fcs_lport_ms_send_gfn(void *ms_cbarg, struct bfa_fcxp_s *fcxp_alloced)
{
    struct bfa_fcs_lport_ms_s *ms = ms_cbarg;
    bfa_fcs_lport_t *port = ms->port;
    struct fchs_s       fchs;
    int         len;
    struct bfa_fcxp_s *fcxp;

    bfa_trc(port->fcs, port->pid);

    fcxp = fcxp_alloced ? fcxp_alloced :
           bfa_fcs_fcxp_alloc(port->fcs, BFA_TRUE);
    if (!fcxp) {
        bfa_fcs_fcxp_alloc_wait(port->fcs->bfa, &ms->fcxp_wqe,
                bfa_fcs_lport_ms_send_gfn, ms, BFA_TRUE);
        return;
    }
    ms->fcxp = fcxp;

    len = fc_gfn_req_build(&fchs, bfa_fcxp_get_reqbuf(fcxp),
                 bfa_fcs_lport_get_fcid(port),
                 port->fabric->lps->pr_nwwn);

    bfa_fcxp_send(fcxp, NULL, port->fabric->vf_id, port->lp_tag, BFA_FALSE,
              FC_CLASS_3, len, &fchs,
              bfa_fcs_lport_ms_gfn_response, (void *)ms,
              FC_MAX_PDUSZ, FC_FCCT_TOV);

    bfa_sm_send_event(ms, MSSM_EVENT_FCXP_SENT);
}

static void
bfa_fcs_lport_ms_gfn_response(void *fcsarg, struct bfa_fcxp_s *fcxp,
            void *cbarg, bfa_status_t req_status, u32 rsp_len,
            u32 resid_len, struct fchs_s *rsp_fchs)
{
    struct bfa_fcs_lport_ms_s *ms = (struct bfa_fcs_lport_ms_s *) cbarg;
    bfa_fcs_lport_t *port = ms->port;
    struct ct_hdr_s *cthdr = NULL;
    wwn_t          *gfn_resp;

    bfa_trc(port->fcs, req_status);
    bfa_trc(port->fcs, port->port_cfg.pwwn);

    /*
     * Sanity Checks
     */
    if (req_status != BFA_STATUS_OK) {
        bfa_trc(port->fcs, req_status);
        bfa_sm_send_event(ms, MSSM_EVENT_RSP_ERROR);
        return;
    }

    cthdr = (struct ct_hdr_s *) BFA_FCXP_RSP_PLD(fcxp);
    cthdr->cmd_rsp_code = be16_to_cpu(cthdr->cmd_rsp_code);

    if (cthdr->cmd_rsp_code == CT_RSP_ACCEPT) {
        gfn_resp = (wwn_t *)(cthdr + 1);
        /* check if it has actually changed */
        if ((memcmp((void *)&bfa_fcs_lport_get_fabric_name(port),
                gfn_resp, sizeof(wwn_t)) != 0)) {
            bfa_fcs_fabric_set_fabric_name(port->fabric, *gfn_resp);
        }
        bfa_sm_send_event(ms, MSSM_EVENT_RSP_OK);
        return;
    }

    bfa_trc(port->fcs, cthdr->reason_code);
    bfa_trc(port->fcs, cthdr->exp_code);
    bfa_sm_send_event(ms, MSSM_EVENT_RSP_ERROR);
}

/*
 *  ms_pvt MS local functions
 */

static void
bfa_fcs_lport_ms_send_plogi(void *ms_cbarg, struct bfa_fcxp_s *fcxp_alloced)
{
    struct bfa_fcs_lport_ms_s *ms = ms_cbarg;
    struct bfa_fcs_lport_s *port = ms->port;
    struct fchs_s   fchs;
    int len;
    struct bfa_fcxp_s *fcxp;

    bfa_trc(port->fcs, port->pid);

    fcxp = fcxp_alloced ? fcxp_alloced :
           bfa_fcs_fcxp_alloc(port->fcs, BFA_TRUE);
    if (!fcxp) {
        port->stats.ms_plogi_alloc_wait++;
        bfa_fcs_fcxp_alloc_wait(port->fcs->bfa, &ms->fcxp_wqe,
                bfa_fcs_lport_ms_send_plogi, ms, BFA_TRUE);
        return;
    }
    ms->fcxp = fcxp;

    len = fc_plogi_build(&fchs, bfa_fcxp_get_reqbuf(fcxp),
                 bfa_hton3b(FC_MGMT_SERVER),
                 bfa_fcs_lport_get_fcid(port), 0,
                 port->port_cfg.pwwn, port->port_cfg.nwwn,
                 bfa_fcport_get_maxfrsize(port->fcs->bfa),
                 bfa_fcport_get_rx_bbcredit(port->fcs->bfa));

    bfa_fcxp_send(fcxp, NULL, port->fabric->vf_id, port->lp_tag, BFA_FALSE,
              FC_CLASS_3, len, &fchs,
              bfa_fcs_lport_ms_plogi_response, (void *)ms,
              FC_MAX_PDUSZ, FC_ELS_TOV);

    port->stats.ms_plogi_sent++;
    bfa_sm_send_event(ms, MSSM_EVENT_FCXP_SENT);
}

static void
bfa_fcs_lport_ms_plogi_response(void *fcsarg, struct bfa_fcxp_s *fcxp,
            void *cbarg, bfa_status_t req_status,
            u32 rsp_len, u32 resid_len, struct fchs_s *rsp_fchs)
{
    struct bfa_fcs_lport_ms_s *ms = (struct bfa_fcs_lport_ms_s *) cbarg;
    struct bfa_fcs_lport_s *port = ms->port;
    struct fc_els_cmd_s *els_cmd;
    struct fc_ls_rjt_s *ls_rjt;

    bfa_trc(port->fcs, req_status);
    bfa_trc(port->fcs, port->port_cfg.pwwn);

    /*
     * Sanity Checks
     */
    if (req_status != BFA_STATUS_OK) {
        port->stats.ms_plogi_rsp_err++;
        bfa_trc(port->fcs, req_status);
        bfa_sm_send_event(ms, MSSM_EVENT_RSP_ERROR);
        return;
    }

    els_cmd = (struct fc_els_cmd_s *) BFA_FCXP_RSP_PLD(fcxp);

    switch (els_cmd->els_code) {

    case FC_ELS_ACC:
        if (rsp_len < sizeof(struct fc_logi_s)) {
            bfa_trc(port->fcs, rsp_len);
            port->stats.ms_plogi_acc_err++;
            bfa_sm_send_event(ms, MSSM_EVENT_RSP_ERROR);
            break;
        }
        port->stats.ms_plogi_accepts++;
        bfa_sm_send_event(ms, MSSM_EVENT_RSP_OK);
        break;

    case FC_ELS_LS_RJT:
        ls_rjt = (struct fc_ls_rjt_s *) BFA_FCXP_RSP_PLD(fcxp);

        bfa_trc(port->fcs, ls_rjt->reason_code);
        bfa_trc(port->fcs, ls_rjt->reason_code_expl);

        port->stats.ms_rejects++;
        bfa_sm_send_event(ms, MSSM_EVENT_RSP_ERROR);
        break;

    default:
        port->stats.ms_plogi_unknown_rsp++;
        bfa_trc(port->fcs, els_cmd->els_code);
        bfa_sm_send_event(ms, MSSM_EVENT_RSP_ERROR);
    }
}

static void
bfa_fcs_lport_ms_timeout(void *arg)
{
    struct bfa_fcs_lport_ms_s *ms = (struct bfa_fcs_lport_ms_s *) arg;

    ms->port->stats.ms_timeouts++;
    bfa_sm_send_event(ms, MSSM_EVENT_TIMEOUT);
}


void
bfa_fcs_lport_ms_init(struct bfa_fcs_lport_s *port)
{
    struct bfa_fcs_lport_ms_s *ms = BFA_FCS_GET_MS_FROM_PORT(port);

    ms->port = port;
    bfa_sm_set_state(ms, bfa_fcs_lport_ms_sm_offline);

    /*
     * Invoke init routines of sub modules.
     */
    bfa_fcs_lport_fdmi_init(ms);
}

void
bfa_fcs_lport_ms_offline(struct bfa_fcs_lport_s *port)
{
    struct bfa_fcs_lport_ms_s *ms = BFA_FCS_GET_MS_FROM_PORT(port);

    ms->port = port;
    bfa_sm_send_event(ms, MSSM_EVENT_PORT_OFFLINE);
    bfa_fcs_lport_fdmi_offline(ms);
}

void
bfa_fcs_lport_ms_online(struct bfa_fcs_lport_s *port)
{
    struct bfa_fcs_lport_ms_s *ms = BFA_FCS_GET_MS_FROM_PORT(port);

    ms->port = port;
    bfa_sm_send_event(ms, MSSM_EVENT_PORT_ONLINE);
}
void
bfa_fcs_lport_ms_fabric_rscn(struct bfa_fcs_lport_s *port)
{
    struct bfa_fcs_lport_ms_s *ms = BFA_FCS_GET_MS_FROM_PORT(port);

    /* todo.  Handle this only  when in Online state */
    if (bfa_sm_cmp_state(ms, bfa_fcs_lport_ms_sm_online))
        bfa_sm_send_event(ms, MSSM_EVENT_PORT_FABRIC_RSCN);
}

/*
 * @page ns_sm_info VPORT NS State Machine
 *
 * @section ns_sm_interactions VPORT NS State Machine Interactions
 *
 * @section ns_sm VPORT NS State Machine
 * img ns_sm.jpg
 */

/*
 * forward declarations
 */
static void     bfa_fcs_lport_ns_send_plogi(void *ns_cbarg,
                       struct bfa_fcxp_s *fcxp_alloced);
static void     bfa_fcs_lport_ns_send_rspn_id(void *ns_cbarg,
                         struct bfa_fcxp_s *fcxp_alloced);
static void     bfa_fcs_lport_ns_send_rft_id(void *ns_cbarg,
                        struct bfa_fcxp_s *fcxp_alloced);
static void     bfa_fcs_lport_ns_send_rff_id(void *ns_cbarg,
                        struct bfa_fcxp_s *fcxp_alloced);
static void     bfa_fcs_lport_ns_send_gid_ft(void *ns_cbarg,
                        struct bfa_fcxp_s *fcxp_alloced);
static void bfa_fcs_lport_ns_send_rnn_id(void *ns_cbarg,
                    struct bfa_fcxp_s *fcxp_alloced);
static void bfa_fcs_lport_ns_send_rsnn_nn(void *ns_cbarg,
                    struct bfa_fcxp_s *fcxp_alloced);
static void     bfa_fcs_lport_ns_timeout(void *arg);
static void     bfa_fcs_lport_ns_plogi_response(void *fcsarg,
                           struct bfa_fcxp_s *fcxp,
                           void *cbarg,
                           bfa_status_t req_status,
                           u32 rsp_len,
                           u32 resid_len,
                           struct fchs_s *rsp_fchs);
static void     bfa_fcs_lport_ns_rspn_id_response(void *fcsarg,
                         struct bfa_fcxp_s *fcxp,
                         void *cbarg,
                         bfa_status_t req_status,
                         u32 rsp_len,
                         u32 resid_len,
                         struct fchs_s *rsp_fchs);
static void     bfa_fcs_lport_ns_rft_id_response(void *fcsarg,
                        struct bfa_fcxp_s *fcxp,
                        void *cbarg,
                        bfa_status_t req_status,
                        u32 rsp_len,
                        u32 resid_len,
                        struct fchs_s *rsp_fchs);
static void     bfa_fcs_lport_ns_rff_id_response(void *fcsarg,
                        struct bfa_fcxp_s *fcxp,
                        void *cbarg,
                        bfa_status_t req_status,
                        u32 rsp_len,
                        u32 resid_len,
                        struct fchs_s *rsp_fchs);
static void     bfa_fcs_lport_ns_gid_ft_response(void *fcsarg,
                        struct bfa_fcxp_s *fcxp,
                        void *cbarg,
                        bfa_status_t req_status,
                        u32 rsp_len,
                        u32 resid_len,
                        struct fchs_s *rsp_fchs);
static void     bfa_fcs_lport_ns_rnn_id_response(void *fcsarg,
                        struct bfa_fcxp_s *fcxp,
                        void *cbarg,
                        bfa_status_t req_status,
                        u32 rsp_len,
                        u32 resid_len,
                        struct fchs_s *rsp_fchs);
static void     bfa_fcs_lport_ns_rsnn_nn_response(void *fcsarg,
                        struct bfa_fcxp_s *fcxp,
                        void *cbarg,
                        bfa_status_t req_status,
                        u32 rsp_len,
                        u32 resid_len,
                        struct fchs_s *rsp_fchs);
static void     bfa_fcs_lport_ns_process_gidft_pids(
                struct bfa_fcs_lport_s *port,
                u32 *pid_buf, u32 n_pids);

static void bfa_fcs_lport_ns_boot_target_disc(bfa_fcs_lport_t *port);
/*
 *  fcs_ns_sm FCS nameserver interface state machine
 */

/*
 * VPort NS State Machine events
 */
enum vport_ns_event {
    NSSM_EVENT_PORT_ONLINE = 1,
    NSSM_EVENT_PORT_OFFLINE = 2,
    NSSM_EVENT_PLOGI_SENT = 3,
    NSSM_EVENT_RSP_OK = 4,
    NSSM_EVENT_RSP_ERROR = 5,
    NSSM_EVENT_TIMEOUT = 6,
    NSSM_EVENT_NS_QUERY = 7,
    NSSM_EVENT_RSPNID_SENT = 8,
    NSSM_EVENT_RFTID_SENT = 9,
    NSSM_EVENT_RFFID_SENT = 10,
    NSSM_EVENT_GIDFT_SENT = 11,
    NSSM_EVENT_RNNID_SENT = 12,
    NSSM_EVENT_RSNN_NN_SENT = 13,
};

static void     bfa_fcs_lport_ns_sm_offline(struct bfa_fcs_lport_ns_s *ns,
                       enum vport_ns_event event);
static void     bfa_fcs_lport_ns_sm_plogi_sending(struct bfa_fcs_lport_ns_s *ns,
                         enum vport_ns_event event);
static void     bfa_fcs_lport_ns_sm_plogi(struct bfa_fcs_lport_ns_s *ns,
                     enum vport_ns_event event);
static void     bfa_fcs_lport_ns_sm_plogi_retry(struct bfa_fcs_lport_ns_s *ns,
                           enum vport_ns_event event);
static void     bfa_fcs_lport_ns_sm_sending_rspn_id(
                    struct bfa_fcs_lport_ns_s *ns,
                    enum vport_ns_event event);
static void     bfa_fcs_lport_ns_sm_rspn_id(struct bfa_fcs_lport_ns_s *ns,
                       enum vport_ns_event event);
static void     bfa_fcs_lport_ns_sm_rspn_id_retry(struct bfa_fcs_lport_ns_s *ns,
                         enum vport_ns_event event);
static void     bfa_fcs_lport_ns_sm_sending_rft_id(
                    struct bfa_fcs_lport_ns_s *ns,
                    enum vport_ns_event event);
static void     bfa_fcs_lport_ns_sm_rft_id_retry(struct bfa_fcs_lport_ns_s *ns,
                        enum vport_ns_event event);
static void     bfa_fcs_lport_ns_sm_rft_id(struct bfa_fcs_lport_ns_s *ns,
                      enum vport_ns_event event);
static void     bfa_fcs_lport_ns_sm_sending_rff_id(
                    struct bfa_fcs_lport_ns_s *ns,
                    enum vport_ns_event event);
static void     bfa_fcs_lport_ns_sm_rff_id_retry(struct bfa_fcs_lport_ns_s *ns,
                        enum vport_ns_event event);
static void     bfa_fcs_lport_ns_sm_rff_id(struct bfa_fcs_lport_ns_s *ns,
                      enum vport_ns_event event);
static void     bfa_fcs_lport_ns_sm_sending_gid_ft(
                    struct bfa_fcs_lport_ns_s *ns,
                    enum vport_ns_event event);
static void     bfa_fcs_lport_ns_sm_gid_ft(struct bfa_fcs_lport_ns_s *ns,
                      enum vport_ns_event event);
static void     bfa_fcs_lport_ns_sm_gid_ft_retry(struct bfa_fcs_lport_ns_s *ns,
                        enum vport_ns_event event);
static void     bfa_fcs_lport_ns_sm_online(struct bfa_fcs_lport_ns_s *ns,
                      enum vport_ns_event event);
static void     bfa_fcs_lport_ns_sm_sending_rnn_id(
                    struct bfa_fcs_lport_ns_s *ns,
                    enum vport_ns_event event);
static void     bfa_fcs_lport_ns_sm_rnn_id(struct bfa_fcs_lport_ns_s *ns,
                    enum vport_ns_event event);
static void     bfa_fcs_lport_ns_sm_rnn_id_retry(struct bfa_fcs_lport_ns_s *ns,
                        enum vport_ns_event event);
static void     bfa_fcs_lport_ns_sm_sending_rsnn_nn(
                    struct bfa_fcs_lport_ns_s *ns,
                    enum vport_ns_event event);
static void     bfa_fcs_lport_ns_sm_rsnn_nn(struct bfa_fcs_lport_ns_s *ns,
                        enum vport_ns_event event);
static void     bfa_fcs_lport_ns_sm_rsnn_nn_retry(
                    struct bfa_fcs_lport_ns_s *ns,
                    enum vport_ns_event event);
/*
 *  Start in offline state - awaiting linkup
 */
static void
bfa_fcs_lport_ns_sm_offline(struct bfa_fcs_lport_ns_s *ns,
            enum vport_ns_event event)
{
    bfa_trc(ns->port->fcs, ns->port->port_cfg.pwwn);
    bfa_trc(ns->port->fcs, event);

    switch (event) {
    case NSSM_EVENT_PORT_ONLINE:
        bfa_sm_set_state(ns, bfa_fcs_lport_ns_sm_plogi_sending);
        bfa_fcs_lport_ns_send_plogi(ns, NULL);
        break;

    case NSSM_EVENT_PORT_OFFLINE:
        break;

    default:
        bfa_sm_fault(ns->port->fcs, event);
    }
}

static void
bfa_fcs_lport_ns_sm_plogi_sending(struct bfa_fcs_lport_ns_s *ns,
            enum vport_ns_event event)
{
    bfa_trc(ns->port->fcs, ns->port->port_cfg.pwwn);
    bfa_trc(ns->port->fcs, event);

    switch (event) {
    case NSSM_EVENT_PLOGI_SENT:
        bfa_sm_set_state(ns, bfa_fcs_lport_ns_sm_plogi);
        break;

    case NSSM_EVENT_PORT_OFFLINE:
        bfa_sm_set_state(ns, bfa_fcs_lport_ns_sm_offline);
        bfa_fcxp_walloc_cancel(BFA_FCS_GET_HAL_FROM_PORT(ns->port),
                       &ns->fcxp_wqe);
        break;

    default:
        bfa_sm_fault(ns->port->fcs, event);
    }
}

static void
bfa_fcs_lport_ns_sm_plogi(struct bfa_fcs_lport_ns_s *ns,
            enum vport_ns_event event)
{
    bfa_trc(ns->port->fcs, ns->port->port_cfg.pwwn);
    bfa_trc(ns->port->fcs, event);

    switch (event) {
    case NSSM_EVENT_RSP_ERROR:
        /*
         * Start timer for a delayed retry
         */
        bfa_sm_set_state(ns, bfa_fcs_lport_ns_sm_plogi_retry);
        ns->port->stats.ns_retries++;
        bfa_timer_start(BFA_FCS_GET_HAL_FROM_PORT(ns->port),
                    &ns->timer, bfa_fcs_lport_ns_timeout, ns,
                    BFA_FCS_RETRY_TIMEOUT);
        break;

    case NSSM_EVENT_RSP_OK:
        bfa_sm_set_state(ns, bfa_fcs_lport_ns_sm_sending_rnn_id);
        ns->num_rnnid_retries = 0;
        bfa_fcs_lport_ns_send_rnn_id(ns, NULL);
        break;

    case NSSM_EVENT_PORT_OFFLINE:
        bfa_sm_set_state(ns, bfa_fcs_lport_ns_sm_offline);
        bfa_fcxp_discard(ns->fcxp);
        break;

    default:
        bfa_sm_fault(ns->port->fcs, event);
    }
}

static void
bfa_fcs_lport_ns_sm_plogi_retry(struct bfa_fcs_lport_ns_s *ns,
                enum vport_ns_event event)
{
    bfa_trc(ns->port->fcs, ns->port->port_cfg.pwwn);
    bfa_trc(ns->port->fcs, event);

    switch (event) {
    case NSSM_EVENT_TIMEOUT:
        /*
         * Retry Timer Expired. Re-send
         */
        bfa_sm_set_state(ns, bfa_fcs_lport_ns_sm_plogi_sending);
        bfa_fcs_lport_ns_send_plogi(ns, NULL);
        break;

    case NSSM_EVENT_PORT_OFFLINE:
        bfa_sm_set_state(ns, bfa_fcs_lport_ns_sm_offline);
        bfa_timer_stop(&ns->timer);
        break;

    default:
        bfa_sm_fault(ns->port->fcs, event);
    }
}

static void
bfa_fcs_lport_ns_sm_sending_rnn_id(struct bfa_fcs_lport_ns_s *ns,
                    enum vport_ns_event event)
{
    bfa_trc(ns->port->fcs, ns->port->port_cfg.pwwn);
    bfa_trc(ns->port->fcs, event);

    switch (event) {
    case NSSM_EVENT_RNNID_SENT:
        bfa_sm_set_state(ns, bfa_fcs_lport_ns_sm_rnn_id);
        break;

    case NSSM_EVENT_PORT_OFFLINE:
        bfa_sm_set_state(ns, bfa_fcs_lport_ns_sm_offline);
        bfa_fcxp_walloc_cancel(BFA_FCS_GET_HAL_FROM_PORT(ns->port),
                        &ns->fcxp_wqe);
        break;
    default:
        bfa_sm_fault(ns->port->fcs, event);
    }
}

static void
bfa_fcs_lport_ns_sm_rnn_id(struct bfa_fcs_lport_ns_s *ns,
                enum vport_ns_event event)
{
    bfa_trc(ns->port->fcs, ns->port->port_cfg.pwwn);
    bfa_trc(ns->port->fcs, event);

    switch (event) {
    case NSSM_EVENT_RSP_OK:
        bfa_sm_set_state(ns, bfa_fcs_lport_ns_sm_sending_rsnn_nn);
        ns->num_rnnid_retries = 0;
        ns->num_rsnn_nn_retries = 0;
        bfa_fcs_lport_ns_send_rsnn_nn(ns, NULL);
        break;

    case NSSM_EVENT_RSP_ERROR:
        if (ns->num_rnnid_retries < BFA_FCS_MAX_NS_RETRIES) {
            bfa_sm_set_state(ns, bfa_fcs_lport_ns_sm_rnn_id_retry);
            ns->port->stats.ns_retries++;
            ns->num_rnnid_retries++;
            bfa_timer_start(BFA_FCS_GET_HAL_FROM_PORT(ns->port),
                &ns->timer, bfa_fcs_lport_ns_timeout, ns,
                BFA_FCS_RETRY_TIMEOUT);
        } else {
            bfa_sm_set_state(ns,
                bfa_fcs_lport_ns_sm_sending_rspn_id);
            bfa_fcs_lport_ns_send_rspn_id(ns, NULL);
        }
        break;

    case NSSM_EVENT_PORT_OFFLINE:
        bfa_fcxp_discard(ns->fcxp);
        bfa_sm_set_state(ns, bfa_fcs_lport_ns_sm_offline);
        break;

    default:
        bfa_sm_fault(ns->port->fcs, event);
    }
}

static void
bfa_fcs_lport_ns_sm_rnn_id_retry(struct bfa_fcs_lport_ns_s *ns,
                enum vport_ns_event event)
{
    bfa_trc(ns->port->fcs, ns->port->port_cfg.pwwn);
    bfa_trc(ns->port->fcs, event);

    switch (event) {
    case NSSM_EVENT_TIMEOUT:
        bfa_sm_set_state(ns, bfa_fcs_lport_ns_sm_sending_rnn_id);
        bfa_fcs_lport_ns_send_rnn_id(ns, NULL);
        break;

    case NSSM_EVENT_PORT_OFFLINE:
        bfa_sm_set_state(ns, bfa_fcs_lport_ns_sm_offline);
        bfa_timer_stop(&ns->timer);
        break;

    default:
        bfa_sm_fault(ns->port->fcs, event);
    }
}

static void
bfa_fcs_lport_ns_sm_sending_rsnn_nn(struct bfa_fcs_lport_ns_s *ns,
                    enum vport_ns_event event)
{
    bfa_trc(ns->port->fcs, ns->port->port_cfg.pwwn);
    bfa_trc(ns->port->fcs, event);

    switch (event) {
    case NSSM_EVENT_RSNN_NN_SENT:
        bfa_sm_set_state(ns, bfa_fcs_lport_ns_sm_rsnn_nn);
        break;

    case NSSM_EVENT_PORT_OFFLINE:
        bfa_sm_set_state(ns, bfa_fcs_lport_ns_sm_offline);
        bfa_fcxp_walloc_cancel(BFA_FCS_GET_HAL_FROM_PORT(ns->port),
            &ns->fcxp_wqe);
        break;

    default:
        bfa_sm_fault(ns->port->fcs, event);
    }
}

static void
bfa_fcs_lport_ns_sm_rsnn_nn(struct bfa_fcs_lport_ns_s *ns,
                enum vport_ns_event event)
{
    bfa_trc(ns->port->fcs, ns->port->port_cfg.pwwn);
    bfa_trc(ns->port->fcs, event);

    switch (event) {
    case NSSM_EVENT_RSP_OK:
        bfa_sm_set_state(ns, bfa_fcs_lport_ns_sm_sending_rspn_id);
        ns->num_rsnn_nn_retries = 0;
        bfa_fcs_lport_ns_send_rspn_id(ns, NULL);
        break;

    case NSSM_EVENT_RSP_ERROR:
        if (ns->num_rsnn_nn_retries < BFA_FCS_MAX_NS_RETRIES) {
            bfa_sm_set_state(ns, bfa_fcs_lport_ns_sm_rsnn_nn_retry);
            ns->port->stats.ns_retries++;
            ns->num_rsnn_nn_retries++;
            bfa_timer_start(BFA_FCS_GET_HAL_FROM_PORT(ns->port),
                    &ns->timer, bfa_fcs_lport_ns_timeout,
                    ns, BFA_FCS_RETRY_TIMEOUT);
        } else {
            bfa_sm_set_state(ns,
                bfa_fcs_lport_ns_sm_sending_rspn_id);
            bfa_fcs_lport_ns_send_rspn_id(ns, NULL);
        }
        break;

    case NSSM_EVENT_PORT_OFFLINE:
        bfa_sm_set_state(ns, bfa_fcs_lport_ns_sm_offline);
        bfa_fcxp_discard(ns->fcxp);
        break;

    default:
        bfa_sm_fault(ns->port->fcs, event);
    }
}

static void
bfa_fcs_lport_ns_sm_rsnn_nn_retry(struct bfa_fcs_lport_ns_s *ns,
                    enum vport_ns_event event)
{
    bfa_trc(ns->port->fcs, ns->port->port_cfg.pwwn);
    bfa_trc(ns->port->fcs, event);

    switch (event) {
    case NSSM_EVENT_TIMEOUT:
        bfa_sm_set_state(ns, bfa_fcs_lport_ns_sm_sending_rsnn_nn);
        bfa_fcs_lport_ns_send_rsnn_nn(ns, NULL);
        break;

    case NSSM_EVENT_PORT_OFFLINE:
        bfa_sm_set_state(ns, bfa_fcs_lport_ns_sm_offline);
        bfa_timer_stop(&ns->timer);
        break;

    default:
        bfa_sm_fault(ns->port->fcs, event);
    }
}

static void
bfa_fcs_lport_ns_sm_sending_rspn_id(struct bfa_fcs_lport_ns_s *ns,
                   enum vport_ns_event event)
{
    bfa_trc(ns->port->fcs, ns->port->port_cfg.pwwn);
    bfa_trc(ns->port->fcs, event);

    switch (event) {
    case NSSM_EVENT_RSPNID_SENT:
        bfa_sm_set_state(ns, bfa_fcs_lport_ns_sm_rspn_id);
        break;

    case NSSM_EVENT_PORT_OFFLINE:
        bfa_sm_set_state(ns, bfa_fcs_lport_ns_sm_offline);
        bfa_fcxp_walloc_cancel(BFA_FCS_GET_HAL_FROM_PORT(ns->port),
                       &ns->fcxp_wqe);
        break;

    default:
        bfa_sm_fault(ns->port->fcs, event);
    }
}

static void
bfa_fcs_lport_ns_sm_rspn_id(struct bfa_fcs_lport_ns_s *ns,
            enum vport_ns_event event)
{
    bfa_trc(ns->port->fcs, ns->port->port_cfg.pwwn);
    bfa_trc(ns->port->fcs, event);

    switch (event) {
    case NSSM_EVENT_RSP_ERROR:
        /*
         * Start timer for a delayed retry
         */
        bfa_sm_set_state(ns, bfa_fcs_lport_ns_sm_rspn_id_retry);
        ns->port->stats.ns_retries++;
        bfa_timer_start(BFA_FCS_GET_HAL_FROM_PORT(ns->port),
                    &ns->timer, bfa_fcs_lport_ns_timeout, ns,
                    BFA_FCS_RETRY_TIMEOUT);
        break;

    case NSSM_EVENT_RSP_OK:
        bfa_sm_set_state(ns, bfa_fcs_lport_ns_sm_sending_rft_id);
        bfa_fcs_lport_ns_send_rft_id(ns, NULL);
        break;

    case NSSM_EVENT_PORT_OFFLINE:
        bfa_fcxp_discard(ns->fcxp);
        bfa_sm_set_state(ns, bfa_fcs_lport_ns_sm_offline);
        break;

    default:
        bfa_sm_fault(ns->port->fcs, event);
    }
}

static void
bfa_fcs_lport_ns_sm_rspn_id_retry(struct bfa_fcs_lport_ns_s *ns,
                enum vport_ns_event event)
{
    bfa_trc(ns->port->fcs, ns->port->port_cfg.pwwn);
    bfa_trc(ns->port->fcs, event);

    switch (event) {
    case NSSM_EVENT_TIMEOUT:
        /*
         * Retry Timer Expired. Re-send
         */
        bfa_sm_set_state(ns, bfa_fcs_lport_ns_sm_sending_rspn_id);
        bfa_fcs_lport_ns_send_rspn_id(ns, NULL);
        break;

    case NSSM_EVENT_PORT_OFFLINE:
        bfa_sm_set_state(ns, bfa_fcs_lport_ns_sm_offline);
        bfa_timer_stop(&ns->timer);
        break;

    default:
        bfa_sm_fault(ns->port->fcs, event);
    }
}

static void
bfa_fcs_lport_ns_sm_sending_rft_id(struct bfa_fcs_lport_ns_s *ns,
                  enum vport_ns_event event)
{
    bfa_trc(ns->port->fcs, ns->port->port_cfg.pwwn);
    bfa_trc(ns->port->fcs, event);

    switch (event) {
    case NSSM_EVENT_RFTID_SENT:
        bfa_sm_set_state(ns, bfa_fcs_lport_ns_sm_rft_id);
        break;

    case NSSM_EVENT_PORT_OFFLINE:
        bfa_sm_set_state(ns, bfa_fcs_lport_ns_sm_offline);
        bfa_fcxp_walloc_cancel(BFA_FCS_GET_HAL_FROM_PORT(ns->port),
                       &ns->fcxp_wqe);
        break;

    default:
        bfa_sm_fault(ns->port->fcs, event);
    }
}

static void
bfa_fcs_lport_ns_sm_rft_id(struct bfa_fcs_lport_ns_s *ns,
            enum vport_ns_event event)
{
    bfa_trc(ns->port->fcs, ns->port->port_cfg.pwwn);
    bfa_trc(ns->port->fcs, event);

    switch (event) {
    case NSSM_EVENT_RSP_OK:
        /* Now move to register FC4 Features */
        bfa_sm_set_state(ns, bfa_fcs_lport_ns_sm_sending_rff_id);
        bfa_fcs_lport_ns_send_rff_id(ns, NULL);
        break;

    case NSSM_EVENT_RSP_ERROR:
        /*
         * Start timer for a delayed retry
         */
        bfa_sm_set_state(ns, bfa_fcs_lport_ns_sm_rft_id_retry);
        ns->port->stats.ns_retries++;
        bfa_timer_start(BFA_FCS_GET_HAL_FROM_PORT(ns->port),
                    &ns->timer, bfa_fcs_lport_ns_timeout, ns,
                    BFA_FCS_RETRY_TIMEOUT);
        break;

    case NSSM_EVENT_PORT_OFFLINE:
        bfa_sm_set_state(ns, bfa_fcs_lport_ns_sm_offline);
        bfa_fcxp_discard(ns->fcxp);
        break;

    default:
        bfa_sm_fault(ns->port->fcs, event);
    }
}

static void
bfa_fcs_lport_ns_sm_rft_id_retry(struct bfa_fcs_lport_ns_s *ns,
                enum vport_ns_event event)
{
    bfa_trc(ns->port->fcs, ns->port->port_cfg.pwwn);
    bfa_trc(ns->port->fcs, event);

    switch (event) {
    case NSSM_EVENT_TIMEOUT:
        bfa_sm_set_state(ns, bfa_fcs_lport_ns_sm_sending_rft_id);
        bfa_fcs_lport_ns_send_rft_id(ns, NULL);
        break;

    case NSSM_EVENT_PORT_OFFLINE:
        bfa_sm_set_state(ns, bfa_fcs_lport_ns_sm_offline);
        bfa_timer_stop(&ns->timer);
        break;

    default:
        bfa_sm_fault(ns->port->fcs, event);
    }
}

static void
bfa_fcs_lport_ns_sm_sending_rff_id(struct bfa_fcs_lport_ns_s *ns,
                  enum vport_ns_event event)
{
    bfa_trc(ns->port->fcs, ns->port->port_cfg.pwwn);
    bfa_trc(ns->port->fcs, event);

    switch (event) {
    case NSSM_EVENT_RFFID_SENT:
        bfa_sm_set_state(ns, bfa_fcs_lport_ns_sm_rff_id);
        break;

    case NSSM_EVENT_PORT_OFFLINE:
        bfa_sm_set_state(ns, bfa_fcs_lport_ns_sm_offline);
        bfa_fcxp_walloc_cancel(BFA_FCS_GET_HAL_FROM_PORT(ns->port),
                       &ns->fcxp_wqe);
        break;

    default:
        bfa_sm_fault(ns->port->fcs, event);
    }
}

static void
bfa_fcs_lport_ns_sm_rff_id(struct bfa_fcs_lport_ns_s *ns,
            enum vport_ns_event event)
{
    bfa_trc(ns->port->fcs, ns->port->port_cfg.pwwn);
    bfa_trc(ns->port->fcs, event);

    switch (event) {
    case NSSM_EVENT_RSP_OK:

        /*
         * If min cfg mode is enabled, we donot initiate rport
         * discovery with the fabric. Instead, we will retrieve the
         * boot targets from HAL/FW.
         */
        if (__fcs_min_cfg(ns->port->fcs)) {
            bfa_fcs_lport_ns_boot_target_disc(ns->port);
            bfa_sm_set_state(ns, bfa_fcs_lport_ns_sm_online);
            return;
        }

        /*
         * If the port role is Initiator Mode issue NS query.
         * If it is Target Mode, skip this and go to online.
         */
        if (BFA_FCS_VPORT_IS_INITIATOR_MODE(ns->port)) {
            bfa_sm_set_state(ns,
                bfa_fcs_lport_ns_sm_sending_gid_ft);
            bfa_fcs_lport_ns_send_gid_ft(ns, NULL);
        }
        /*
         * kick off mgmt srvr state machine
         */
        bfa_fcs_lport_ms_online(ns->port);
        break;

    case NSSM_EVENT_RSP_ERROR:
        /*
         * Start timer for a delayed retry
         */
        bfa_sm_set_state(ns, bfa_fcs_lport_ns_sm_rff_id_retry);
        ns->port->stats.ns_retries++;
        bfa_timer_start(BFA_FCS_GET_HAL_FROM_PORT(ns->port),
                    &ns->timer, bfa_fcs_lport_ns_timeout, ns,
                    BFA_FCS_RETRY_TIMEOUT);
        break;

    case NSSM_EVENT_PORT_OFFLINE:
        bfa_sm_set_state(ns, bfa_fcs_lport_ns_sm_offline);
        bfa_fcxp_discard(ns->fcxp);
        break;

    default:
        bfa_sm_fault(ns->port->fcs, event);
    }
}

static void
bfa_fcs_lport_ns_sm_rff_id_retry(struct bfa_fcs_lport_ns_s *ns,
                enum vport_ns_event event)
{
    bfa_trc(ns->port->fcs, ns->port->port_cfg.pwwn);
    bfa_trc(ns->port->fcs, event);

    switch (event) {
    case NSSM_EVENT_TIMEOUT:
        bfa_sm_set_state(ns, bfa_fcs_lport_ns_sm_sending_rff_id);
        bfa_fcs_lport_ns_send_rff_id(ns, NULL);
        break;

    case NSSM_EVENT_PORT_OFFLINE:
        bfa_sm_set_state(ns, bfa_fcs_lport_ns_sm_offline);
        bfa_timer_stop(&ns->timer);
        break;

    default:
        bfa_sm_fault(ns->port->fcs, event);
    }
}
static void
bfa_fcs_lport_ns_sm_sending_gid_ft(struct bfa_fcs_lport_ns_s *ns,
                  enum vport_ns_event event)
{
    bfa_trc(ns->port->fcs, ns->port->port_cfg.pwwn);
    bfa_trc(ns->port->fcs, event);

    switch (event) {
    case NSSM_EVENT_GIDFT_SENT:
        bfa_sm_set_state(ns, bfa_fcs_lport_ns_sm_gid_ft);
        break;

    case NSSM_EVENT_PORT_OFFLINE:
        bfa_sm_set_state(ns, bfa_fcs_lport_ns_sm_offline);
        bfa_fcxp_walloc_cancel(BFA_FCS_GET_HAL_FROM_PORT(ns->port),
                       &ns->fcxp_wqe);
        break;

    default:
        bfa_sm_fault(ns->port->fcs, event);
    }
}

static void
bfa_fcs_lport_ns_sm_gid_ft(struct bfa_fcs_lport_ns_s *ns,
            enum vport_ns_event event)
{
    bfa_trc(ns->port->fcs, ns->port->port_cfg.pwwn);
    bfa_trc(ns->port->fcs, event);

    switch (event) {
    case NSSM_EVENT_RSP_OK:
        bfa_sm_set_state(ns, bfa_fcs_lport_ns_sm_online);
        break;

    case NSSM_EVENT_RSP_ERROR:
        /*
         * TBD: for certain reject codes, we don't need to retry
         */
        /*
         * Start timer for a delayed retry
         */
        bfa_sm_set_state(ns, bfa_fcs_lport_ns_sm_gid_ft_retry);
        ns->port->stats.ns_retries++;
        bfa_timer_start(BFA_FCS_GET_HAL_FROM_PORT(ns->port),
                    &ns->timer, bfa_fcs_lport_ns_timeout, ns,
                    BFA_FCS_RETRY_TIMEOUT);
        break;

    case NSSM_EVENT_PORT_OFFLINE:
        bfa_sm_set_state(ns, bfa_fcs_lport_ns_sm_offline);
        bfa_fcxp_discard(ns->fcxp);
        break;

    case  NSSM_EVENT_NS_QUERY:
        break;

    default:
        bfa_sm_fault(ns->port->fcs, event);
    }
}

static void
bfa_fcs_lport_ns_sm_gid_ft_retry(struct bfa_fcs_lport_ns_s *ns,
                enum vport_ns_event event)
{
    bfa_trc(ns->port->fcs, ns->port->port_cfg.pwwn);
    bfa_trc(ns->port->fcs, event);

    switch (event) {
    case NSSM_EVENT_TIMEOUT:
        bfa_sm_set_state(ns, bfa_fcs_lport_ns_sm_sending_gid_ft);
        bfa_fcs_lport_ns_send_gid_ft(ns, NULL);
        break;

    case NSSM_EVENT_PORT_OFFLINE:
        bfa_sm_set_state(ns, bfa_fcs_lport_ns_sm_offline);
        bfa_timer_stop(&ns->timer);
        break;

    default:
        bfa_sm_fault(ns->port->fcs, event);
    }
}

static void
bfa_fcs_lport_ns_sm_online(struct bfa_fcs_lport_ns_s *ns,
            enum vport_ns_event event)
{
    bfa_trc(ns->port->fcs, ns->port->port_cfg.pwwn);
    bfa_trc(ns->port->fcs, event);

    switch (event) {
    case NSSM_EVENT_PORT_OFFLINE:
        bfa_sm_set_state(ns, bfa_fcs_lport_ns_sm_offline);
        break;

    case NSSM_EVENT_NS_QUERY:
        /*
         * If the port role is Initiator Mode issue NS query.
         * If it is Target Mode, skip this and go to online.
         */
        if (BFA_FCS_VPORT_IS_INITIATOR_MODE(ns->port)) {
            bfa_sm_set_state(ns,
                bfa_fcs_lport_ns_sm_sending_gid_ft);
            bfa_fcs_lport_ns_send_gid_ft(ns, NULL);
        };
        break;

    default:
        bfa_sm_fault(ns->port->fcs, event);
    }
}



/*
 *  ns_pvt Nameserver local functions
 */

static void
bfa_fcs_lport_ns_send_plogi(void *ns_cbarg, struct bfa_fcxp_s *fcxp_alloced)
{
    struct bfa_fcs_lport_ns_s *ns = ns_cbarg;
    struct bfa_fcs_lport_s *port = ns->port;
    struct fchs_s fchs;
    int             len;
    struct bfa_fcxp_s *fcxp;

    bfa_trc(port->fcs, port->pid);

    fcxp = fcxp_alloced ? fcxp_alloced :
           bfa_fcs_fcxp_alloc(port->fcs, BFA_TRUE);
    if (!fcxp) {
        port->stats.ns_plogi_alloc_wait++;
        bfa_fcs_fcxp_alloc_wait(port->fcs->bfa, &ns->fcxp_wqe,
                bfa_fcs_lport_ns_send_plogi, ns, BFA_TRUE);
        return;
    }
    ns->fcxp = fcxp;

    len = fc_plogi_build(&fchs, bfa_fcxp_get_reqbuf(fcxp),
                 bfa_hton3b(FC_NAME_SERVER),
                 bfa_fcs_lport_get_fcid(port), 0,
                 port->port_cfg.pwwn, port->port_cfg.nwwn,
                 bfa_fcport_get_maxfrsize(port->fcs->bfa),
                 bfa_fcport_get_rx_bbcredit(port->fcs->bfa));

    bfa_fcxp_send(fcxp, NULL, port->fabric->vf_id, port->lp_tag, BFA_FALSE,
              FC_CLASS_3, len, &fchs,
              bfa_fcs_lport_ns_plogi_response, (void *)ns,
              FC_MAX_PDUSZ, FC_ELS_TOV);
    port->stats.ns_plogi_sent++;

    bfa_sm_send_event(ns, NSSM_EVENT_PLOGI_SENT);
}

static void
bfa_fcs_lport_ns_plogi_response(void *fcsarg, struct bfa_fcxp_s *fcxp,
            void *cbarg, bfa_status_t req_status, u32 rsp_len,
               u32 resid_len, struct fchs_s *rsp_fchs)
{
    struct bfa_fcs_lport_ns_s *ns = (struct bfa_fcs_lport_ns_s *) cbarg;
    struct bfa_fcs_lport_s *port = ns->port;
    /* struct fc_logi_s *plogi_resp; */
    struct fc_els_cmd_s *els_cmd;
    struct fc_ls_rjt_s *ls_rjt;

    bfa_trc(port->fcs, req_status);
    bfa_trc(port->fcs, port->port_cfg.pwwn);

    /*
     * Sanity Checks
     */
    if (req_status != BFA_STATUS_OK) {
        bfa_trc(port->fcs, req_status);
        port->stats.ns_plogi_rsp_err++;
        bfa_sm_send_event(ns, NSSM_EVENT_RSP_ERROR);
        return;
    }

    els_cmd = (struct fc_els_cmd_s *) BFA_FCXP_RSP_PLD(fcxp);

    switch (els_cmd->els_code) {

    case FC_ELS_ACC:
        if (rsp_len < sizeof(struct fc_logi_s)) {
            bfa_trc(port->fcs, rsp_len);
            port->stats.ns_plogi_acc_err++;
            bfa_sm_send_event(ns, NSSM_EVENT_RSP_ERROR);
            break;
        }
        port->stats.ns_plogi_accepts++;
        bfa_sm_send_event(ns, NSSM_EVENT_RSP_OK);
        break;

    case FC_ELS_LS_RJT:
        ls_rjt = (struct fc_ls_rjt_s *) BFA_FCXP_RSP_PLD(fcxp);

        bfa_trc(port->fcs, ls_rjt->reason_code);
        bfa_trc(port->fcs, ls_rjt->reason_code_expl);

        port->stats.ns_rejects++;

        bfa_sm_send_event(ns, NSSM_EVENT_RSP_ERROR);
        break;

    default:
        port->stats.ns_plogi_unknown_rsp++;
        bfa_trc(port->fcs, els_cmd->els_code);
        bfa_sm_send_event(ns, NSSM_EVENT_RSP_ERROR);
    }
}

/*
 * Register node name for port_id
 */
static void
bfa_fcs_lport_ns_send_rnn_id(void *ns_cbarg, struct bfa_fcxp_s *fcxp_alloced)
{
    struct bfa_fcs_lport_ns_s *ns = ns_cbarg;
    struct bfa_fcs_lport_s *port = ns->port;
    struct fchs_s  fchs;
    int len;
    struct bfa_fcxp_s *fcxp;

    bfa_trc(port->fcs, port->port_cfg.pwwn);

    fcxp = fcxp_alloced ? fcxp_alloced :
            bfa_fcs_fcxp_alloc(port->fcs, BFA_TRUE);
    if (!fcxp) {
        port->stats.ns_rnnid_alloc_wait++;
        bfa_fcs_fcxp_alloc_wait(port->fcs->bfa, &ns->fcxp_wqe,
                bfa_fcs_lport_ns_send_rnn_id, ns, BFA_TRUE);
        return;
    }

    ns->fcxp = fcxp;

    len = fc_rnnid_build(&fchs, bfa_fcxp_get_reqbuf(fcxp),
                bfa_fcs_lport_get_fcid(port),
                bfa_fcs_lport_get_fcid(port),
                bfa_fcs_lport_get_nwwn(port));

    bfa_fcxp_send(fcxp, NULL, port->fabric->vf_id, port->lp_tag, BFA_FALSE,
              FC_CLASS_3, len, &fchs,
              bfa_fcs_lport_ns_rnn_id_response, (void *)ns,
              FC_MAX_PDUSZ, FC_FCCT_TOV);

    port->stats.ns_rnnid_sent++;
    bfa_sm_send_event(ns, NSSM_EVENT_RNNID_SENT);
}

static void
bfa_fcs_lport_ns_rnn_id_response(void *fcsarg, struct bfa_fcxp_s *fcxp,
                void *cbarg, bfa_status_t req_status,
                u32 rsp_len, u32 resid_len,
                struct fchs_s *rsp_fchs)

{
    struct bfa_fcs_lport_ns_s *ns = (struct bfa_fcs_lport_ns_s *) cbarg;
    struct bfa_fcs_lport_s *port = ns->port;
    struct ct_hdr_s *cthdr = NULL;

    bfa_trc(port->fcs, port->port_cfg.pwwn);

    /*
     * Sanity Checks
     */
    if (req_status != BFA_STATUS_OK) {
        bfa_trc(port->fcs, req_status);
        port->stats.ns_rnnid_rsp_err++;
        bfa_sm_send_event(ns, NSSM_EVENT_RSP_ERROR);
        return;
    }

    cthdr = (struct ct_hdr_s *) BFA_FCXP_RSP_PLD(fcxp);
    cthdr->cmd_rsp_code = be16_to_cpu(cthdr->cmd_rsp_code);

    if (cthdr->cmd_rsp_code == CT_RSP_ACCEPT) {
        port->stats.ns_rnnid_accepts++;
        bfa_sm_send_event(ns, NSSM_EVENT_RSP_OK);
        return;
    }

    port->stats.ns_rnnid_rejects++;
    bfa_trc(port->fcs, cthdr->reason_code);
    bfa_trc(port->fcs, cthdr->exp_code);
    bfa_sm_send_event(ns, NSSM_EVENT_RSP_ERROR);
}

/*
 * Register the symbolic node name for a given node name.
 */
static void
bfa_fcs_lport_ns_send_rsnn_nn(void *ns_cbarg, struct bfa_fcxp_s *fcxp_alloced)
{
    struct bfa_fcs_lport_ns_s *ns = ns_cbarg;
    struct bfa_fcs_lport_s *port = ns->port;
    struct fchs_s  fchs;
    int     len;
    struct bfa_fcxp_s *fcxp;
    u8 *nsymbl;

    bfa_trc(port->fcs, port->port_cfg.pwwn);

    fcxp = fcxp_alloced ? fcxp_alloced :
            bfa_fcs_fcxp_alloc(port->fcs, BFA_TRUE);
    if (!fcxp) {
        port->stats.ns_rsnn_nn_alloc_wait++;
        bfa_fcs_fcxp_alloc_wait(port->fcs->bfa, &ns->fcxp_wqe,
                bfa_fcs_lport_ns_send_rsnn_nn, ns, BFA_TRUE);
        return;
    }
    ns->fcxp = fcxp;

    nsymbl = (u8 *) &(bfa_fcs_lport_get_nsym_name(
                    bfa_fcs_get_base_port(port->fcs)));

    len = fc_rsnn_nn_build(&fchs, bfa_fcxp_get_reqbuf(fcxp),
                bfa_fcs_lport_get_fcid(port),
                bfa_fcs_lport_get_nwwn(port), nsymbl);

    bfa_fcxp_send(fcxp, NULL, port->fabric->vf_id, port->lp_tag, BFA_FALSE,
              FC_CLASS_3, len, &fchs,
              bfa_fcs_lport_ns_rsnn_nn_response, (void *)ns,
              FC_MAX_PDUSZ, FC_FCCT_TOV);

    port->stats.ns_rsnn_nn_sent++;

    bfa_sm_send_event(ns, NSSM_EVENT_RSNN_NN_SENT);
}

static void
bfa_fcs_lport_ns_rsnn_nn_response(void *fcsarg, struct bfa_fcxp_s *fcxp,
                void *cbarg, bfa_status_t req_status,
                u32 rsp_len, u32 resid_len,
                struct fchs_s *rsp_fchs)
{
    struct bfa_fcs_lport_ns_s *ns = (struct bfa_fcs_lport_ns_s *) cbarg;
    struct bfa_fcs_lport_s *port = ns->port;
    struct ct_hdr_s *cthdr = NULL;

    bfa_trc(port->fcs, port->port_cfg.pwwn);

    /*
     * Sanity Checks
     */
    if (req_status != BFA_STATUS_OK) {
        bfa_trc(port->fcs, req_status);
        port->stats.ns_rsnn_nn_rsp_err++;
        bfa_sm_send_event(ns, NSSM_EVENT_RSP_ERROR);
        return;
    }

    cthdr = (struct ct_hdr_s *) BFA_FCXP_RSP_PLD(fcxp);
    cthdr->cmd_rsp_code = be16_to_cpu(cthdr->cmd_rsp_code);

    if (cthdr->cmd_rsp_code == CT_RSP_ACCEPT) {
        port->stats.ns_rsnn_nn_accepts++;
        bfa_sm_send_event(ns, NSSM_EVENT_RSP_OK);
        return;
    }

    port->stats.ns_rsnn_nn_rejects++;
    bfa_trc(port->fcs, cthdr->reason_code);
    bfa_trc(port->fcs, cthdr->exp_code);
    bfa_sm_send_event(ns, NSSM_EVENT_RSP_ERROR);
}

/*
 * Register the symbolic port name.
 */
static void
bfa_fcs_lport_ns_send_rspn_id(void *ns_cbarg, struct bfa_fcxp_s *fcxp_alloced)
{
    struct bfa_fcs_lport_ns_s *ns = ns_cbarg;
    struct bfa_fcs_lport_s *port = ns->port;
    struct fchs_s fchs;
    int             len;
    struct bfa_fcxp_s *fcxp;
    u8         symbl[256];
    u8         *psymbl = &symbl[0];

    memset(symbl, 0, sizeof(symbl));

    bfa_trc(port->fcs, port->port_cfg.pwwn);

    fcxp = fcxp_alloced ? fcxp_alloced :
           bfa_fcs_fcxp_alloc(port->fcs, BFA_TRUE);
    if (!fcxp) {
        port->stats.ns_rspnid_alloc_wait++;
        bfa_fcs_fcxp_alloc_wait(port->fcs->bfa, &ns->fcxp_wqe,
                bfa_fcs_lport_ns_send_rspn_id, ns, BFA_TRUE);
        return;
    }
    ns->fcxp = fcxp;

    /*
     * for V-Port, form a Port Symbolic Name
     */
    if (port->vport) {
        /*
         * For Vports, we append the vport's port symbolic name
         * to that of the base port.
         */

        strncpy((char *)psymbl,
            (char *) &
            (bfa_fcs_lport_get_psym_name
             (bfa_fcs_get_base_port(port->fcs))),
            strlen((char *) &
                   bfa_fcs_lport_get_psym_name(bfa_fcs_get_base_port
                              (port->fcs))));

        /* Ensure we have a null terminating string. */
        ((char *)psymbl)[strlen((char *) &
            bfa_fcs_lport_get_psym_name(bfa_fcs_get_base_port
                        (port->fcs)))] = 0;
        strncat((char *)psymbl,
            (char *) &(bfa_fcs_lport_get_psym_name(port)),
        strlen((char *) &bfa_fcs_lport_get_psym_name(port)));
    } else {
        psymbl = (u8 *) &(bfa_fcs_lport_get_psym_name(port));
    }

    len = fc_rspnid_build(&fchs, bfa_fcxp_get_reqbuf(fcxp),
                  bfa_fcs_lport_get_fcid(port), 0, psymbl);

    bfa_fcxp_send(fcxp, NULL, port->fabric->vf_id, port->lp_tag, BFA_FALSE,
              FC_CLASS_3, len, &fchs,
              bfa_fcs_lport_ns_rspn_id_response, (void *)ns,
              FC_MAX_PDUSZ, FC_FCCT_TOV);

    port->stats.ns_rspnid_sent++;

    bfa_sm_send_event(ns, NSSM_EVENT_RSPNID_SENT);
}

static void
bfa_fcs_lport_ns_rspn_id_response(void *fcsarg, struct bfa_fcxp_s *fcxp,
                 void *cbarg, bfa_status_t req_status,
                 u32 rsp_len, u32 resid_len,
                 struct fchs_s *rsp_fchs)
{
    struct bfa_fcs_lport_ns_s *ns = (struct bfa_fcs_lport_ns_s *) cbarg;
    struct bfa_fcs_lport_s *port = ns->port;
    struct ct_hdr_s *cthdr = NULL;

    bfa_trc(port->fcs, port->port_cfg.pwwn);

    /*
     * Sanity Checks
     */
    if (req_status != BFA_STATUS_OK) {
        bfa_trc(port->fcs, req_status);
        port->stats.ns_rspnid_rsp_err++;
        bfa_sm_send_event(ns, NSSM_EVENT_RSP_ERROR);
        return;
    }

    cthdr = (struct ct_hdr_s *) BFA_FCXP_RSP_PLD(fcxp);
    cthdr->cmd_rsp_code = be16_to_cpu(cthdr->cmd_rsp_code);

    if (cthdr->cmd_rsp_code == CT_RSP_ACCEPT) {
        port->stats.ns_rspnid_accepts++;
        bfa_sm_send_event(ns, NSSM_EVENT_RSP_OK);
        return;
    }

    port->stats.ns_rspnid_rejects++;
    bfa_trc(port->fcs, cthdr->reason_code);
    bfa_trc(port->fcs, cthdr->exp_code);
    bfa_sm_send_event(ns, NSSM_EVENT_RSP_ERROR);
}

/*
 * Register FC4-Types
 */
static void
bfa_fcs_lport_ns_send_rft_id(void *ns_cbarg, struct bfa_fcxp_s *fcxp_alloced)
{
    struct bfa_fcs_lport_ns_s *ns = ns_cbarg;
    struct bfa_fcs_lport_s *port = ns->port;
    struct fchs_s fchs;
    int             len;
    struct bfa_fcxp_s *fcxp;

    bfa_trc(port->fcs, port->port_cfg.pwwn);

    fcxp = fcxp_alloced ? fcxp_alloced :
           bfa_fcs_fcxp_alloc(port->fcs, BFA_TRUE);
    if (!fcxp) {
        port->stats.ns_rftid_alloc_wait++;
        bfa_fcs_fcxp_alloc_wait(port->fcs->bfa, &ns->fcxp_wqe,
                bfa_fcs_lport_ns_send_rft_id, ns, BFA_TRUE);
        return;
    }
    ns->fcxp = fcxp;

    len = fc_rftid_build(&fchs, bfa_fcxp_get_reqbuf(fcxp),
             bfa_fcs_lport_get_fcid(port), 0, port->port_cfg.roles);

    bfa_fcxp_send(fcxp, NULL, port->fabric->vf_id, port->lp_tag, BFA_FALSE,
              FC_CLASS_3, len, &fchs,
              bfa_fcs_lport_ns_rft_id_response, (void *)ns,
              FC_MAX_PDUSZ, FC_FCCT_TOV);

    port->stats.ns_rftid_sent++;
    bfa_sm_send_event(ns, NSSM_EVENT_RFTID_SENT);
}

static void
bfa_fcs_lport_ns_rft_id_response(void *fcsarg, struct bfa_fcxp_s *fcxp,
                void *cbarg, bfa_status_t req_status,
                u32 rsp_len, u32 resid_len,
                struct fchs_s *rsp_fchs)
{
    struct bfa_fcs_lport_ns_s *ns = (struct bfa_fcs_lport_ns_s *) cbarg;
    struct bfa_fcs_lport_s *port = ns->port;
    struct ct_hdr_s *cthdr = NULL;

    bfa_trc(port->fcs, port->port_cfg.pwwn);

    /*
     * Sanity Checks
     */
    if (req_status != BFA_STATUS_OK) {
        bfa_trc(port->fcs, req_status);
        port->stats.ns_rftid_rsp_err++;
        bfa_sm_send_event(ns, NSSM_EVENT_RSP_ERROR);
        return;
    }

    cthdr = (struct ct_hdr_s *) BFA_FCXP_RSP_PLD(fcxp);
    cthdr->cmd_rsp_code = be16_to_cpu(cthdr->cmd_rsp_code);

    if (cthdr->cmd_rsp_code == CT_RSP_ACCEPT) {
        port->stats.ns_rftid_accepts++;
        bfa_sm_send_event(ns, NSSM_EVENT_RSP_OK);
        return;
    }

    port->stats.ns_rftid_rejects++;
    bfa_trc(port->fcs, cthdr->reason_code);
    bfa_trc(port->fcs, cthdr->exp_code);
    bfa_sm_send_event(ns, NSSM_EVENT_RSP_ERROR);
}

/*
 * Register FC4-Features : Should be done after RFT_ID
 */
static void
bfa_fcs_lport_ns_send_rff_id(void *ns_cbarg, struct bfa_fcxp_s *fcxp_alloced)
{
    struct bfa_fcs_lport_ns_s *ns = ns_cbarg;
    struct bfa_fcs_lport_s *port = ns->port;
    struct fchs_s fchs;
    int             len;
    struct bfa_fcxp_s *fcxp;
    u8          fc4_ftrs = 0;

    bfa_trc(port->fcs, port->port_cfg.pwwn);

    fcxp = fcxp_alloced ? fcxp_alloced :
           bfa_fcs_fcxp_alloc(port->fcs, BFA_TRUE);
    if (!fcxp) {
        port->stats.ns_rffid_alloc_wait++;
        bfa_fcs_fcxp_alloc_wait(port->fcs->bfa, &ns->fcxp_wqe,
                bfa_fcs_lport_ns_send_rff_id, ns, BFA_TRUE);
        return;
    }
    ns->fcxp = fcxp;

    if (BFA_FCS_VPORT_IS_INITIATOR_MODE(ns->port))
        fc4_ftrs = FC_GS_FCP_FC4_FEATURE_INITIATOR;

    len = fc_rffid_build(&fchs, bfa_fcxp_get_reqbuf(fcxp),
                 bfa_fcs_lport_get_fcid(port), 0,
                 FC_TYPE_FCP, fc4_ftrs);

    bfa_fcxp_send(fcxp, NULL, port->fabric->vf_id, port->lp_tag, BFA_FALSE,
              FC_CLASS_3, len, &fchs,
              bfa_fcs_lport_ns_rff_id_response, (void *)ns,
              FC_MAX_PDUSZ, FC_FCCT_TOV);

    port->stats.ns_rffid_sent++;
    bfa_sm_send_event(ns, NSSM_EVENT_RFFID_SENT);
}

static void
bfa_fcs_lport_ns_rff_id_response(void *fcsarg, struct bfa_fcxp_s *fcxp,
                void *cbarg, bfa_status_t req_status,
                u32 rsp_len, u32 resid_len,
                struct fchs_s *rsp_fchs)
{
    struct bfa_fcs_lport_ns_s *ns = (struct bfa_fcs_lport_ns_s *) cbarg;
    struct bfa_fcs_lport_s *port = ns->port;
    struct ct_hdr_s *cthdr = NULL;

    bfa_trc(port->fcs, port->port_cfg.pwwn);

    /*
     * Sanity Checks
     */
    if (req_status != BFA_STATUS_OK) {
        bfa_trc(port->fcs, req_status);
        port->stats.ns_rffid_rsp_err++;
        bfa_sm_send_event(ns, NSSM_EVENT_RSP_ERROR);
        return;
    }

    cthdr = (struct ct_hdr_s *) BFA_FCXP_RSP_PLD(fcxp);
    cthdr->cmd_rsp_code = be16_to_cpu(cthdr->cmd_rsp_code);

    if (cthdr->cmd_rsp_code == CT_RSP_ACCEPT) {
        port->stats.ns_rffid_accepts++;
        bfa_sm_send_event(ns, NSSM_EVENT_RSP_OK);
        return;
    }

    port->stats.ns_rffid_rejects++;
    bfa_trc(port->fcs, cthdr->reason_code);
    bfa_trc(port->fcs, cthdr->exp_code);

    if (cthdr->reason_code == CT_RSN_NOT_SUPP) {
        /* if this command is not supported, we don't retry */
        bfa_sm_send_event(ns, NSSM_EVENT_RSP_OK);
    } else
        bfa_sm_send_event(ns, NSSM_EVENT_RSP_ERROR);
}
/*
 * Query Fabric for FC4-Types Devices.
 *
* TBD : Need to use a local (FCS private) response buffer, since the response
 * can be larger than 2K.
 */
static void
bfa_fcs_lport_ns_send_gid_ft(void *ns_cbarg, struct bfa_fcxp_s *fcxp_alloced)
{
    struct bfa_fcs_lport_ns_s *ns = ns_cbarg;
    struct bfa_fcs_lport_s *port = ns->port;
    struct fchs_s fchs;
    int             len;
    struct bfa_fcxp_s *fcxp;

    bfa_trc(port->fcs, port->pid);

    fcxp = fcxp_alloced ? fcxp_alloced :
           bfa_fcs_fcxp_alloc(port->fcs, BFA_TRUE);
    if (!fcxp) {
        port->stats.ns_gidft_alloc_wait++;
        bfa_fcs_fcxp_alloc_wait(port->fcs->bfa, &ns->fcxp_wqe,
                bfa_fcs_lport_ns_send_gid_ft, ns, BFA_TRUE);
        return;
    }
    ns->fcxp = fcxp;

    /*
     * This query is only initiated for FCP initiator mode.
     */
    len = fc_gid_ft_build(&fchs, bfa_fcxp_get_reqbuf(fcxp),
                  ns->port->pid, FC_TYPE_FCP);

    bfa_fcxp_send(fcxp, NULL, port->fabric->vf_id, port->lp_tag, BFA_FALSE,
              FC_CLASS_3, len, &fchs,
              bfa_fcs_lport_ns_gid_ft_response, (void *)ns,
              bfa_fcxp_get_maxrsp(port->fcs->bfa), FC_FCCT_TOV);

    port->stats.ns_gidft_sent++;

    bfa_sm_send_event(ns, NSSM_EVENT_GIDFT_SENT);
}

static void
bfa_fcs_lport_ns_gid_ft_response(void *fcsarg, struct bfa_fcxp_s *fcxp,
                void *cbarg, bfa_status_t req_status,
                u32 rsp_len, u32 resid_len,
                struct fchs_s *rsp_fchs)
{
    struct bfa_fcs_lport_ns_s *ns = (struct bfa_fcs_lport_ns_s *) cbarg;
    struct bfa_fcs_lport_s *port = ns->port;
    struct ct_hdr_s *cthdr = NULL;
    u32        n_pids;

    bfa_trc(port->fcs, port->port_cfg.pwwn);

    /*
     * Sanity Checks
     */
    if (req_status != BFA_STATUS_OK) {
        bfa_trc(port->fcs, req_status);
        port->stats.ns_gidft_rsp_err++;
        bfa_sm_send_event(ns, NSSM_EVENT_RSP_ERROR);
        return;
    }

    if (resid_len != 0) {
        /*
         * TBD : we will need to allocate a larger buffer & retry the
         * command
         */
        bfa_trc(port->fcs, rsp_len);
        bfa_trc(port->fcs, resid_len);
        return;
    }

    cthdr = (struct ct_hdr_s *) BFA_FCXP_RSP_PLD(fcxp);
    cthdr->cmd_rsp_code = be16_to_cpu(cthdr->cmd_rsp_code);

    switch (cthdr->cmd_rsp_code) {

    case CT_RSP_ACCEPT:

        port->stats.ns_gidft_accepts++;
        n_pids = (fc_get_ctresp_pyld_len(rsp_len) / sizeof(u32));
        bfa_trc(port->fcs, n_pids);
        bfa_fcs_lport_ns_process_gidft_pids(port,
                           (u32 *) (cthdr + 1),
                           n_pids);
        bfa_sm_send_event(ns, NSSM_EVENT_RSP_OK);
        break;

    case CT_RSP_REJECT:

        /*
         * Check the reason code  & explanation.
         * There may not have been any FC4 devices in the fabric
         */
        port->stats.ns_gidft_rejects++;
        bfa_trc(port->fcs, cthdr->reason_code);
        bfa_trc(port->fcs, cthdr->exp_code);

        if ((cthdr->reason_code == CT_RSN_UNABLE_TO_PERF)
            && (cthdr->exp_code == CT_NS_EXP_FT_NOT_REG)) {

            bfa_sm_send_event(ns, NSSM_EVENT_RSP_OK);
        } else {
            /*
             * for all other errors, retry
             */
            bfa_sm_send_event(ns, NSSM_EVENT_RSP_ERROR);
        }
        break;

    default:
        port->stats.ns_gidft_unknown_rsp++;
        bfa_trc(port->fcs, cthdr->cmd_rsp_code);
        bfa_sm_send_event(ns, NSSM_EVENT_RSP_ERROR);
    }
}

/*
 *     This routine will be called by bfa_timer on timer timeouts.
 *
 *  param[in]   port - pointer to bfa_fcs_lport_t.
 *
 *  return
 *      void
 *
 *  Special Considerations:
 *
 *  note
 */
static void
bfa_fcs_lport_ns_timeout(void *arg)
{
    struct bfa_fcs_lport_ns_s *ns = (struct bfa_fcs_lport_ns_s *) arg;

    ns->port->stats.ns_timeouts++;
    bfa_sm_send_event(ns, NSSM_EVENT_TIMEOUT);
}

/*
 * Process the PID list in GID_FT response
 */
static void
bfa_fcs_lport_ns_process_gidft_pids(struct bfa_fcs_lport_s *port, u32 *pid_buf,
                   u32 n_pids)
{
    struct fcgs_gidft_resp_s *gidft_entry;
    struct bfa_fcs_rport_s *rport;
    u32        ii;
    struct bfa_fcs_fabric_s *fabric = port->fabric;
    struct bfa_fcs_vport_s *vport;
    struct list_head *qe;
    u8 found = 0;

    for (ii = 0; ii < n_pids; ii++) {
        gidft_entry = (struct fcgs_gidft_resp_s *) &pid_buf[ii];

        if (gidft_entry->pid == port->pid)
            continue;

        /*
         * Ignore PID if it is of base port
         * (Avoid vports discovering base port as remote port)
         */
        if (gidft_entry->pid == fabric->bport.pid)
            continue;

        /*
         * Ignore PID if it is of vport created on the same base port
         * (Avoid vport discovering every other vport created on the
         * same port as remote port)
         */
        list_for_each(qe, &fabric->vport_q) {
            vport = (struct bfa_fcs_vport_s *) qe;
            if (vport->lport.pid == gidft_entry->pid)
                found = 1;
        }

        if (found) {
            found = 0;
            continue;
        }

        /*
         * Check if this rport already exists
         */
        rport = bfa_fcs_lport_get_rport_by_pid(port, gidft_entry->pid);
        if (rport == NULL) {
            /*
             * this is a new device. create rport
             */
            rport = bfa_fcs_rport_create(port, gidft_entry->pid);
        } else {
            /*
             * this rport already exists
             */
            bfa_fcs_rport_scn(rport);
        }

        bfa_trc(port->fcs, gidft_entry->pid);

        /*
         * if the last entry bit is set, bail out.
         */
        if (gidft_entry->last)
            return;
    }
}

/*
 *  fcs_ns_public FCS nameserver public interfaces
 */

/*
 * Functions called by port/fab.
 * These will send relevant Events to the ns state machine.
 */
void
bfa_fcs_lport_ns_init(struct bfa_fcs_lport_s *port)
{
    struct bfa_fcs_lport_ns_s *ns = BFA_FCS_GET_NS_FROM_PORT(port);

    ns->port = port;
    bfa_sm_set_state(ns, bfa_fcs_lport_ns_sm_offline);
}

void
bfa_fcs_lport_ns_offline(struct bfa_fcs_lport_s *port)
{
    struct bfa_fcs_lport_ns_s *ns = BFA_FCS_GET_NS_FROM_PORT(port);

    ns->port = port;
    bfa_sm_send_event(ns, NSSM_EVENT_PORT_OFFLINE);
}

void
bfa_fcs_lport_ns_online(struct bfa_fcs_lport_s *port)
{
    struct bfa_fcs_lport_ns_s *ns = BFA_FCS_GET_NS_FROM_PORT(port);

    ns->port = port;
    bfa_sm_send_event(ns, NSSM_EVENT_PORT_ONLINE);
}

void
bfa_fcs_lport_ns_query(struct bfa_fcs_lport_s *port)
{
    struct bfa_fcs_lport_ns_s *ns = BFA_FCS_GET_NS_FROM_PORT(port);

    bfa_trc(port->fcs, port->pid);
    if (bfa_sm_cmp_state(ns, bfa_fcs_lport_ns_sm_online))
        bfa_sm_send_event(ns, NSSM_EVENT_NS_QUERY);
}

static void
bfa_fcs_lport_ns_boot_target_disc(bfa_fcs_lport_t *port)
{

    struct bfa_fcs_rport_s *rport;
    u8 nwwns;
    wwn_t  wwns[BFA_PREBOOT_BOOTLUN_MAX];
    int ii;

    bfa_iocfc_get_bootwwns(port->fcs->bfa, &nwwns, wwns);

    for (ii = 0 ; ii < nwwns; ++ii) {
        rport = bfa_fcs_rport_create_by_wwn(port, wwns[ii]);
        WARN_ON(!rport);
    }
}

void
bfa_fcs_lport_ns_util_send_rspn_id(void *cbarg, struct bfa_fcxp_s *fcxp_alloced)
{
    struct bfa_fcs_lport_ns_s *ns = cbarg;
    struct bfa_fcs_lport_s *port = ns->port;
    struct fchs_s fchs;
    struct bfa_fcxp_s *fcxp;
    u8 symbl[256];
    u8 *psymbl = &symbl[0];
    int len;

    if (!bfa_sm_cmp_state(port, bfa_fcs_lport_sm_online))
        return;

    /* Avoid sending RSPN in the following states. */
    if (bfa_sm_cmp_state(ns, bfa_fcs_lport_ns_sm_offline) ||
        bfa_sm_cmp_state(ns, bfa_fcs_lport_ns_sm_plogi_sending) ||
        bfa_sm_cmp_state(ns, bfa_fcs_lport_ns_sm_plogi) ||
        bfa_sm_cmp_state(ns, bfa_fcs_lport_ns_sm_plogi_retry) ||
        bfa_sm_cmp_state(ns, bfa_fcs_lport_ns_sm_rspn_id_retry))
        return;

    memset(symbl, 0, sizeof(symbl));
    bfa_trc(port->fcs, port->port_cfg.pwwn);

    fcxp = fcxp_alloced ? fcxp_alloced :
           bfa_fcs_fcxp_alloc(port->fcs, BFA_FALSE);
    if (!fcxp) {
        port->stats.ns_rspnid_alloc_wait++;
        bfa_fcs_fcxp_alloc_wait(port->fcs->bfa, &ns->fcxp_wqe,
            bfa_fcs_lport_ns_util_send_rspn_id, ns, BFA_FALSE);
        return;
    }

    ns->fcxp = fcxp;

    if (port->vport) {
        /*
         * For Vports, we append the vport's port symbolic name
         * to that of the base port.
         */
        strncpy((char *)psymbl, (char *)&(bfa_fcs_lport_get_psym_name
            (bfa_fcs_get_base_port(port->fcs))),
            strlen((char *)&bfa_fcs_lport_get_psym_name(
            bfa_fcs_get_base_port(port->fcs))));

        /* Ensure we have a null terminating string. */
        ((char *)psymbl)[strlen((char *)&bfa_fcs_lport_get_psym_name(
         bfa_fcs_get_base_port(port->fcs)))] = 0;

        strncat((char *)psymbl,
            (char *)&(bfa_fcs_lport_get_psym_name(port)),
            strlen((char *)&bfa_fcs_lport_get_psym_name(port)));
    }

    len = fc_rspnid_build(&fchs, bfa_fcxp_get_reqbuf(fcxp),
                  bfa_fcs_lport_get_fcid(port), 0, psymbl);

    bfa_fcxp_send(fcxp, NULL, port->fabric->vf_id, port->lp_tag, BFA_FALSE,
              FC_CLASS_3, len, &fchs, NULL, NULL, FC_MAX_PDUSZ, 0);

    port->stats.ns_rspnid_sent++;
}

/*
 * FCS SCN
 */

#define FC_QOS_RSCN_EVENT       0x0c
#define FC_FABRIC_NAME_RSCN_EVENT   0x0d

/*
 * forward declarations
 */
static void     bfa_fcs_lport_scn_send_scr(void *scn_cbarg,
                      struct bfa_fcxp_s *fcxp_alloced);
static void     bfa_fcs_lport_scn_scr_response(void *fcsarg,
                          struct bfa_fcxp_s *fcxp,
                          void *cbarg,
                          bfa_status_t req_status,
                          u32 rsp_len,
                          u32 resid_len,
                          struct fchs_s *rsp_fchs);
static void     bfa_fcs_lport_scn_send_ls_acc(struct bfa_fcs_lport_s *port,
                         struct fchs_s *rx_fchs);
static void     bfa_fcs_lport_scn_timeout(void *arg);

/*
 *  fcs_scm_sm FCS SCN state machine
 */

/*
 * VPort SCN State Machine events
 */
enum port_scn_event {
    SCNSM_EVENT_PORT_ONLINE = 1,
    SCNSM_EVENT_PORT_OFFLINE = 2,
    SCNSM_EVENT_RSP_OK = 3,
    SCNSM_EVENT_RSP_ERROR = 4,
    SCNSM_EVENT_TIMEOUT = 5,
    SCNSM_EVENT_SCR_SENT = 6,
};

static void     bfa_fcs_lport_scn_sm_offline(struct bfa_fcs_lport_scn_s *scn,
                        enum port_scn_event event);
static void     bfa_fcs_lport_scn_sm_sending_scr(
                    struct bfa_fcs_lport_scn_s *scn,
                    enum port_scn_event event);
static void     bfa_fcs_lport_scn_sm_scr(struct bfa_fcs_lport_scn_s *scn,
                    enum port_scn_event event);
static void     bfa_fcs_lport_scn_sm_scr_retry(struct bfa_fcs_lport_scn_s *scn,
                          enum port_scn_event event);
static void     bfa_fcs_lport_scn_sm_online(struct bfa_fcs_lport_scn_s *scn,
                       enum port_scn_event event);

/*
 *  Starting state - awaiting link up.
 */
static void
bfa_fcs_lport_scn_sm_offline(struct bfa_fcs_lport_scn_s *scn,
            enum port_scn_event event)
{
    switch (event) {
    case SCNSM_EVENT_PORT_ONLINE:
        bfa_sm_set_state(scn, bfa_fcs_lport_scn_sm_sending_scr);
        bfa_fcs_lport_scn_send_scr(scn, NULL);
        break;

    case SCNSM_EVENT_PORT_OFFLINE:
        break;

    default:
        bfa_sm_fault(scn->port->fcs, event);
    }
}

static void
bfa_fcs_lport_scn_sm_sending_scr(struct bfa_fcs_lport_scn_s *scn,
                enum port_scn_event event)
{
    switch (event) {
    case SCNSM_EVENT_SCR_SENT:
        bfa_sm_set_state(scn, bfa_fcs_lport_scn_sm_scr);
        break;

    case SCNSM_EVENT_PORT_OFFLINE:
        bfa_sm_set_state(scn, bfa_fcs_lport_scn_sm_offline);
        bfa_fcxp_walloc_cancel(scn->port->fcs->bfa, &scn->fcxp_wqe);
        break;

    default:
        bfa_sm_fault(scn->port->fcs, event);
    }
}

static void
bfa_fcs_lport_scn_sm_scr(struct bfa_fcs_lport_scn_s *scn,
            enum port_scn_event event)
{
    struct bfa_fcs_lport_s *port = scn->port;

    switch (event) {
    case SCNSM_EVENT_RSP_OK:
        bfa_sm_set_state(scn, bfa_fcs_lport_scn_sm_online);
        break;

    case SCNSM_EVENT_RSP_ERROR:
        bfa_sm_set_state(scn, bfa_fcs_lport_scn_sm_scr_retry);
        bfa_timer_start(port->fcs->bfa, &scn->timer,
                    bfa_fcs_lport_scn_timeout, scn,
                    BFA_FCS_RETRY_TIMEOUT);
        break;

    case SCNSM_EVENT_PORT_OFFLINE:
        bfa_sm_set_state(scn, bfa_fcs_lport_scn_sm_offline);
        bfa_fcxp_discard(scn->fcxp);
        break;

    default:
        bfa_sm_fault(port->fcs, event);
    }
}

static void
bfa_fcs_lport_scn_sm_scr_retry(struct bfa_fcs_lport_scn_s *scn,
                enum port_scn_event event)
{
    switch (event) {
    case SCNSM_EVENT_TIMEOUT:
        bfa_sm_set_state(scn, bfa_fcs_lport_scn_sm_sending_scr);
        bfa_fcs_lport_scn_send_scr(scn, NULL);
        break;

    case SCNSM_EVENT_PORT_OFFLINE:
        bfa_sm_set_state(scn, bfa_fcs_lport_scn_sm_offline);
        bfa_timer_stop(&scn->timer);
        break;

    default:
        bfa_sm_fault(scn->port->fcs, event);
    }
}

static void
bfa_fcs_lport_scn_sm_online(struct bfa_fcs_lport_scn_s *scn,
            enum port_scn_event event)
{
    switch (event) {
    case SCNSM_EVENT_PORT_OFFLINE:
        bfa_sm_set_state(scn, bfa_fcs_lport_scn_sm_offline);
        break;

    default:
        bfa_sm_fault(scn->port->fcs, event);
    }
}



/*
 *  fcs_scn_private FCS SCN private functions
 */

/*
 * This routine will be called to send a SCR command.
 */
static void
bfa_fcs_lport_scn_send_scr(void *scn_cbarg, struct bfa_fcxp_s *fcxp_alloced)
{
    struct bfa_fcs_lport_scn_s *scn = scn_cbarg;
    struct bfa_fcs_lport_s *port = scn->port;
    struct fchs_s fchs;
    int             len;
    struct bfa_fcxp_s *fcxp;

    bfa_trc(port->fcs, port->pid);
    bfa_trc(port->fcs, port->port_cfg.pwwn);

    fcxp = fcxp_alloced ? fcxp_alloced :
           bfa_fcs_fcxp_alloc(port->fcs, BFA_TRUE);
    if (!fcxp) {
        bfa_fcs_fcxp_alloc_wait(port->fcs->bfa, &scn->fcxp_wqe,
                bfa_fcs_lport_scn_send_scr, scn, BFA_TRUE);
        return;
    }
    scn->fcxp = fcxp;

    /* Handle VU registrations for Base port only */
    if ((!port->vport) && bfa_ioc_get_fcmode(&port->fcs->bfa->ioc)) {
        len = fc_scr_build(&fchs, bfa_fcxp_get_reqbuf(fcxp),
                port->fabric->lps->brcd_switch,
                port->pid, 0);
    } else {
        len = fc_scr_build(&fchs, bfa_fcxp_get_reqbuf(fcxp),
                    BFA_FALSE,
                    port->pid, 0);
    }

    bfa_fcxp_send(fcxp, NULL, port->fabric->vf_id, port->lp_tag, BFA_FALSE,
              FC_CLASS_3, len, &fchs,
              bfa_fcs_lport_scn_scr_response,
              (void *)scn, FC_MAX_PDUSZ, FC_ELS_TOV);

    bfa_sm_send_event(scn, SCNSM_EVENT_SCR_SENT);
}

static void
bfa_fcs_lport_scn_scr_response(void *fcsarg, struct bfa_fcxp_s *fcxp,
            void *cbarg, bfa_status_t req_status, u32 rsp_len,
                  u32 resid_len, struct fchs_s *rsp_fchs)
{
    struct bfa_fcs_lport_scn_s *scn = (struct bfa_fcs_lport_scn_s *) cbarg;
    struct bfa_fcs_lport_s *port = scn->port;
    struct fc_els_cmd_s *els_cmd;
    struct fc_ls_rjt_s *ls_rjt;

    bfa_trc(port->fcs, port->port_cfg.pwwn);

    /*
     * Sanity Checks
     */
    if (req_status != BFA_STATUS_OK) {
        bfa_trc(port->fcs, req_status);
        bfa_sm_send_event(scn, SCNSM_EVENT_RSP_ERROR);
        return;
    }

    els_cmd = (struct fc_els_cmd_s *) BFA_FCXP_RSP_PLD(fcxp);

    switch (els_cmd->els_code) {

    case FC_ELS_ACC:
        bfa_sm_send_event(scn, SCNSM_EVENT_RSP_OK);
        break;

    case FC_ELS_LS_RJT:

        ls_rjt = (struct fc_ls_rjt_s *) BFA_FCXP_RSP_PLD(fcxp);

        bfa_trc(port->fcs, ls_rjt->reason_code);
        bfa_trc(port->fcs, ls_rjt->reason_code_expl);

        bfa_sm_send_event(scn, SCNSM_EVENT_RSP_ERROR);
        break;

    default:
        bfa_sm_send_event(scn, SCNSM_EVENT_RSP_ERROR);
    }
}

/*
 * Send a LS Accept
 */
static void
bfa_fcs_lport_scn_send_ls_acc(struct bfa_fcs_lport_s *port,
                struct fchs_s *rx_fchs)
{
    struct fchs_s fchs;
    struct bfa_fcxp_s *fcxp;
    struct bfa_rport_s *bfa_rport = NULL;
    int             len;

    bfa_trc(port->fcs, rx_fchs->s_id);

    fcxp = bfa_fcs_fcxp_alloc(port->fcs, BFA_FALSE);
    if (!fcxp)
        return;

    len = fc_ls_acc_build(&fchs, bfa_fcxp_get_reqbuf(fcxp),
                  rx_fchs->s_id, bfa_fcs_lport_get_fcid(port),
                  rx_fchs->ox_id);

    bfa_fcxp_send(fcxp, bfa_rport, port->fabric->vf_id, port->lp_tag,
              BFA_FALSE, FC_CLASS_3, len, &fchs, NULL, NULL,
              FC_MAX_PDUSZ, 0);
}

/*
 *     This routine will be called by bfa_timer on timer timeouts.
 *
 *  param[in]   vport       - pointer to bfa_fcs_lport_t.
 *  param[out]  vport_status    - pointer to return vport status in
 *
 *  return
 *      void
 *
 *  Special Considerations:
 *
 *  note
 */
static void
bfa_fcs_lport_scn_timeout(void *arg)
{
    struct bfa_fcs_lport_scn_s *scn = (struct bfa_fcs_lport_scn_s *) arg;

    bfa_sm_send_event(scn, SCNSM_EVENT_TIMEOUT);
}



/*
 *  fcs_scn_public FCS state change notification public interfaces
 */

/*
 * Functions called by port/fab
 */
void
bfa_fcs_lport_scn_init(struct bfa_fcs_lport_s *port)
{
    struct bfa_fcs_lport_scn_s *scn = BFA_FCS_GET_SCN_FROM_PORT(port);

    scn->port = port;
    bfa_sm_set_state(scn, bfa_fcs_lport_scn_sm_offline);
}

void
bfa_fcs_lport_scn_offline(struct bfa_fcs_lport_s *port)
{
    struct bfa_fcs_lport_scn_s *scn = BFA_FCS_GET_SCN_FROM_PORT(port);

    scn->port = port;
    bfa_sm_send_event(scn, SCNSM_EVENT_PORT_OFFLINE);
}

void
bfa_fcs_lport_fab_scn_online(struct bfa_fcs_lport_s *port)
{
    struct bfa_fcs_lport_scn_s *scn = BFA_FCS_GET_SCN_FROM_PORT(port);

    scn->port = port;
    bfa_sm_send_event(scn, SCNSM_EVENT_PORT_ONLINE);
}

static void
bfa_fcs_lport_scn_portid_rscn(struct bfa_fcs_lport_s *port, u32 rpid)
{
    struct bfa_fcs_rport_s *rport;
    struct bfa_fcs_fabric_s *fabric = port->fabric;
    struct bfa_fcs_vport_s *vport;
    struct list_head *qe;

    bfa_trc(port->fcs, rpid);

    /*
     * Ignore PID if it is of base port or of vports created on the
     * same base port. It is to avoid vports discovering base port or
     * other vports created on same base port as remote port
     */
    if (rpid == fabric->bport.pid)
        return;

    list_for_each(qe, &fabric->vport_q) {
        vport = (struct bfa_fcs_vport_s *) qe;
        if (vport->lport.pid == rpid)
            return;
    }
    /*
     * If this is an unknown device, then it just came online.
     * Otherwise let rport handle the RSCN event.
     */
    rport = bfa_fcs_lport_get_rport_by_pid(port, rpid);
    if (!rport)
        rport = bfa_fcs_lport_get_rport_by_old_pid(port, rpid);

    if (rport == NULL) {
        /*
         * If min cfg mode is enabled, we donot need to
         * discover any new rports.
         */
        if (!__fcs_min_cfg(port->fcs))
            rport = bfa_fcs_rport_create(port, rpid);
    } else
        bfa_fcs_rport_scn(rport);
}

/*
 * rscn format based PID comparison
 */
#define __fc_pid_match(__c0, __c1, __fmt)       \
    (((__fmt) == FC_RSCN_FORMAT_FABRIC) ||      \
     (((__fmt) == FC_RSCN_FORMAT_DOMAIN) &&     \
      ((__c0)[0] == (__c1)[0])) ||              \
     (((__fmt) == FC_RSCN_FORMAT_AREA) &&       \
      ((__c0)[0] == (__c1)[0]) &&               \
      ((__c0)[1] == (__c1)[1])))

static void
bfa_fcs_lport_scn_multiport_rscn(struct bfa_fcs_lport_s *port,
                enum fc_rscn_format format,
                u32 rscn_pid)
{
    struct bfa_fcs_rport_s *rport;
    struct list_head        *qe, *qe_next;
    u8        *c0, *c1;

    bfa_trc(port->fcs, format);
    bfa_trc(port->fcs, rscn_pid);

    c0 = (u8 *) &rscn_pid;

    list_for_each_safe(qe, qe_next, &port->rport_q) {
        rport = (struct bfa_fcs_rport_s *) qe;
        c1 = (u8 *) &rport->pid;
        if (__fc_pid_match(c0, c1, format))
            bfa_fcs_rport_scn(rport);
    }
}


void
bfa_fcs_lport_scn_process_rscn(struct bfa_fcs_lport_s *port,
            struct fchs_s *fchs, u32 len)
{
    struct fc_rscn_pl_s *rscn = (struct fc_rscn_pl_s *) (fchs + 1);
    int             num_entries;
    u32        rscn_pid;
    bfa_boolean_t   nsquery = BFA_FALSE, found;
    int             i = 0, j;

    num_entries =
        (be16_to_cpu(rscn->payldlen) -
         sizeof(u32)) / sizeof(rscn->event[0]);

    bfa_trc(port->fcs, num_entries);

    port->stats.num_rscn++;

    bfa_fcs_lport_scn_send_ls_acc(port, fchs);

    for (i = 0; i < num_entries; i++) {
        rscn_pid = rscn->event[i].portid;

        bfa_trc(port->fcs, rscn->event[i].format);
        bfa_trc(port->fcs, rscn_pid);

        /* check for duplicate entries in the list */
        found = BFA_FALSE;
        for (j = 0; j < i; j++) {
            if (rscn->event[j].portid == rscn_pid) {
                found = BFA_TRUE;
                break;
            }
        }

        /* if found in down the list, pid has been already processed */
        if (found) {
            bfa_trc(port->fcs, rscn_pid);
            continue;
        }

        switch (rscn->event[i].format) {
        case FC_RSCN_FORMAT_PORTID:
            if (rscn->event[i].qualifier == FC_QOS_RSCN_EVENT) {
                /*
                 * Ignore this event.
                 * f/w would have processed it
                 */
                bfa_trc(port->fcs, rscn_pid);
            } else {
                port->stats.num_portid_rscn++;
                bfa_fcs_lport_scn_portid_rscn(port, rscn_pid);
            }
        break;

        case FC_RSCN_FORMAT_FABRIC:
            if (rscn->event[i].qualifier ==
                    FC_FABRIC_NAME_RSCN_EVENT) {
                bfa_fcs_lport_ms_fabric_rscn(port);
                break;
            }
            /* !!!!!!!!! Fall Through !!!!!!!!!!!!! */

        case FC_RSCN_FORMAT_AREA:
        case FC_RSCN_FORMAT_DOMAIN:
            nsquery = BFA_TRUE;
            bfa_fcs_lport_scn_multiport_rscn(port,
                            rscn->event[i].format,
                            rscn_pid);
            break;


        default:
            WARN_ON(1);
            nsquery = BFA_TRUE;
        }
    }

    /*
     * If any of area, domain or fabric RSCN is received, do a fresh
     * discovery to find new devices.
     */
    if (nsquery)
        bfa_fcs_lport_ns_query(port);
}

/*
 * BFA FCS port
 */
/*
 *  fcs_port_api BFA FCS port API
 */
struct bfa_fcs_lport_s *
bfa_fcs_get_base_port(struct bfa_fcs_s *fcs)
{
    return &fcs->fabric.bport;
}

wwn_t
bfa_fcs_lport_get_rport(struct bfa_fcs_lport_s *port, wwn_t wwn, int index,
        int nrports, bfa_boolean_t bwwn)
{
    struct list_head    *qh, *qe;
    struct bfa_fcs_rport_s *rport = NULL;
    int i;
    struct bfa_fcs_s    *fcs;

    if (port == NULL || nrports == 0)
        return (wwn_t) 0;

    fcs = port->fcs;
    bfa_trc(fcs, (u32) nrports);

    i = 0;
    qh = &port->rport_q;
    qe = bfa_q_first(qh);

    while ((qe != qh) && (i < nrports)) {
        rport = (struct bfa_fcs_rport_s *) qe;
        if (bfa_ntoh3b(rport->pid) > 0xFFF000) {
            qe = bfa_q_next(qe);
            bfa_trc(fcs, (u32) rport->pwwn);
            bfa_trc(fcs, rport->pid);
            bfa_trc(fcs, i);
            continue;
        }

        if (bwwn) {
            if (!memcmp(&wwn, &rport->pwwn, 8))
                break;
        } else {
            if (i == index)
                break;
        }

        i++;
        qe = bfa_q_next(qe);
    }

    bfa_trc(fcs, i);
    if (rport)
        return rport->pwwn;
    else
        return (wwn_t) 0;
}

void
bfa_fcs_lport_get_rport_quals(struct bfa_fcs_lport_s *port,
        struct bfa_rport_qualifier_s rports[], int *nrports)
{
    struct list_head    *qh, *qe;
    struct bfa_fcs_rport_s *rport = NULL;
    int i;
    struct bfa_fcs_s    *fcs;

    if (port == NULL || rports == NULL || *nrports == 0)
        return;

    fcs = port->fcs;
    bfa_trc(fcs, (u32) *nrports);

    i = 0;
    qh = &port->rport_q;
    qe = bfa_q_first(qh);

    while ((qe != qh) && (i < *nrports)) {
        rport = (struct bfa_fcs_rport_s *) qe;
        if (bfa_ntoh3b(rport->pid) > 0xFFF000) {
            qe = bfa_q_next(qe);
            bfa_trc(fcs, (u32) rport->pwwn);
            bfa_trc(fcs, rport->pid);
            bfa_trc(fcs, i);
            continue;
        }

        if (!rport->pwwn && !rport->pid) {
            qe = bfa_q_next(qe);
            continue;
        }

        rports[i].pwwn = rport->pwwn;
        rports[i].pid = rport->pid;

        i++;
        qe = bfa_q_next(qe);
    }

    bfa_trc(fcs, i);
    *nrports = i;
}

/*
 * Iterate's through all the rport's in the given port to
 * determine the maximum operating speed.
 *
 * !!!! To be used in TRL Functionality only !!!!
 */
bfa_port_speed_t
bfa_fcs_lport_get_rport_max_speed(bfa_fcs_lport_t *port)
{
    struct list_head *qh, *qe;
    struct bfa_fcs_rport_s *rport = NULL;
    struct bfa_fcs_s    *fcs;
    bfa_port_speed_t max_speed = 0;
    struct bfa_port_attr_s port_attr;
    bfa_port_speed_t port_speed, rport_speed;
    bfa_boolean_t trl_enabled = bfa_fcport_is_ratelim(port->fcs->bfa);


    if (port == NULL)
        return 0;

    fcs = port->fcs;

    /* Get Physical port's current speed */
    bfa_fcport_get_attr(port->fcs->bfa, &port_attr);
    port_speed = port_attr.speed;
    bfa_trc(fcs, port_speed);

    qh = &port->rport_q;
    qe = bfa_q_first(qh);

    while (qe != qh) {
        rport = (struct bfa_fcs_rport_s *) qe;
        if ((bfa_ntoh3b(rport->pid) > 0xFFF000) ||
            (bfa_fcs_rport_get_state(rport) == BFA_RPORT_OFFLINE) ||
            (rport->scsi_function != BFA_RPORT_TARGET)) {
            qe = bfa_q_next(qe);
            continue;
        }

        rport_speed = rport->rpf.rpsc_speed;
        if ((trl_enabled) && (rport_speed ==
            BFA_PORT_SPEED_UNKNOWN)) {
            /* Use default ratelim speed setting */
            rport_speed =
                bfa_fcport_get_ratelim_speed(port->fcs->bfa);
        }

        if (rport_speed > max_speed)
            max_speed = rport_speed;

        qe = bfa_q_next(qe);
    }

    if (max_speed > port_speed)
        max_speed = port_speed;

    bfa_trc(fcs, max_speed);
    return max_speed;
}

struct bfa_fcs_lport_s *
bfa_fcs_lookup_port(struct bfa_fcs_s *fcs, u16 vf_id, wwn_t lpwwn)
{
    struct bfa_fcs_vport_s *vport;
    bfa_fcs_vf_t   *vf;

    WARN_ON(fcs == NULL);

    vf = bfa_fcs_vf_lookup(fcs, vf_id);
    if (vf == NULL) {
        bfa_trc(fcs, vf_id);
        return NULL;
    }

    if (!lpwwn || (vf->bport.port_cfg.pwwn == lpwwn))
        return &vf->bport;

    vport = bfa_fcs_fabric_vport_lookup(vf, lpwwn);
    if (vport)
        return &vport->lport;

    return NULL;
}

/*
 *  API corresponding to NPIV_VPORT_GETINFO.
 */
void
bfa_fcs_lport_get_info(struct bfa_fcs_lport_s *port,
     struct bfa_lport_info_s *port_info)
{

    bfa_trc(port->fcs, port->fabric->fabric_name);

    if (port->vport == NULL) {
        /*
         * This is a Physical port
         */
        port_info->port_type = BFA_LPORT_TYPE_PHYSICAL;

        /*
         * @todo : need to fix the state & reason
         */
        port_info->port_state = 0;
        port_info->offline_reason = 0;

        port_info->port_wwn = bfa_fcs_lport_get_pwwn(port);
        port_info->node_wwn = bfa_fcs_lport_get_nwwn(port);

        port_info->max_vports_supp =
            bfa_lps_get_max_vport(port->fcs->bfa);
        port_info->num_vports_inuse =
            port->fabric->num_vports;
        port_info->max_rports_supp = BFA_FCS_MAX_RPORTS_SUPP;
        port_info->num_rports_inuse = port->num_rports;
    } else {
        /*
         * This is a virtual port
         */
        port_info->port_type = BFA_LPORT_TYPE_VIRTUAL;

        /*
         * @todo : need to fix the state & reason
         */
        port_info->port_state = 0;
        port_info->offline_reason = 0;

        port_info->port_wwn = bfa_fcs_lport_get_pwwn(port);
        port_info->node_wwn = bfa_fcs_lport_get_nwwn(port);
    }
}

void
bfa_fcs_lport_get_stats(struct bfa_fcs_lport_s *fcs_port,
     struct bfa_lport_stats_s *port_stats)
{
    *port_stats = fcs_port->stats;
}

void
bfa_fcs_lport_clear_stats(struct bfa_fcs_lport_s *fcs_port)
{
    memset(&fcs_port->stats, 0, sizeof(struct bfa_lport_stats_s));
}

/*
 * Let new loop map create missing rports
 */
void
bfa_fcs_lport_lip_scn_online(struct bfa_fcs_lport_s *port)
{
    bfa_fcs_lport_loop_online(port);
}

/*
 * FCS virtual port state machine
 */

#define __vport_fcs(__vp)       ((__vp)->lport.fcs)
#define __vport_pwwn(__vp)      ((__vp)->lport.port_cfg.pwwn)
#define __vport_nwwn(__vp)      ((__vp)->lport.port_cfg.nwwn)
#define __vport_bfa(__vp)       ((__vp)->lport.fcs->bfa)
#define __vport_fcid(__vp)      ((__vp)->lport.pid)
#define __vport_fabric(__vp)    ((__vp)->lport.fabric)
#define __vport_vfid(__vp)      ((__vp)->lport.fabric->vf_id)

#define BFA_FCS_VPORT_MAX_RETRIES  5
/*
 * Forward declarations
 */
static void     bfa_fcs_vport_do_fdisc(struct bfa_fcs_vport_s *vport);
static void     bfa_fcs_vport_timeout(void *vport_arg);
static void     bfa_fcs_vport_do_logo(struct bfa_fcs_vport_s *vport);
static void     bfa_fcs_vport_free(struct bfa_fcs_vport_s *vport);

/*
 *  fcs_vport_sm FCS virtual port state machine
 */

/*
 * VPort State Machine events
 */
enum bfa_fcs_vport_event {
    BFA_FCS_VPORT_SM_CREATE = 1,    /*  vport create event */
    BFA_FCS_VPORT_SM_DELETE = 2,    /*  vport delete event */
    BFA_FCS_VPORT_SM_START = 3, /*  vport start request */
    BFA_FCS_VPORT_SM_STOP = 4,  /*  stop: unsupported */
    BFA_FCS_VPORT_SM_ONLINE = 5,    /*  fabric online */
    BFA_FCS_VPORT_SM_OFFLINE = 6,   /*  fabric offline event */
    BFA_FCS_VPORT_SM_FRMSENT = 7,   /*  fdisc/logo sent events */
    BFA_FCS_VPORT_SM_RSP_OK = 8,    /*  good response */
    BFA_FCS_VPORT_SM_RSP_ERROR = 9, /*  error/bad response */
    BFA_FCS_VPORT_SM_TIMEOUT = 10,  /*  delay timer event */
    BFA_FCS_VPORT_SM_DELCOMP = 11,  /*  lport delete completion */
    BFA_FCS_VPORT_SM_RSP_DUP_WWN = 12,  /*  Dup wnn error*/
    BFA_FCS_VPORT_SM_RSP_FAILED = 13,   /*  non-retryable failure */
    BFA_FCS_VPORT_SM_STOPCOMP = 14, /* vport delete completion */
};

static void     bfa_fcs_vport_sm_uninit(struct bfa_fcs_vport_s *vport,
                    enum bfa_fcs_vport_event event);
static void     bfa_fcs_vport_sm_created(struct bfa_fcs_vport_s *vport,
                     enum bfa_fcs_vport_event event);
static void     bfa_fcs_vport_sm_offline(struct bfa_fcs_vport_s *vport,
                     enum bfa_fcs_vport_event event);
static void     bfa_fcs_vport_sm_fdisc(struct bfa_fcs_vport_s *vport,
                       enum bfa_fcs_vport_event event);
static void     bfa_fcs_vport_sm_fdisc_retry(struct bfa_fcs_vport_s *vport,
                         enum bfa_fcs_vport_event event);
static void bfa_fcs_vport_sm_fdisc_rsp_wait(struct bfa_fcs_vport_s *vport,
                    enum bfa_fcs_vport_event event);
static void     bfa_fcs_vport_sm_online(struct bfa_fcs_vport_s *vport,
                    enum bfa_fcs_vport_event event);
static void     bfa_fcs_vport_sm_deleting(struct bfa_fcs_vport_s *vport,
                      enum bfa_fcs_vport_event event);
static void     bfa_fcs_vport_sm_cleanup(struct bfa_fcs_vport_s *vport,
                     enum bfa_fcs_vport_event event);
static void     bfa_fcs_vport_sm_logo(struct bfa_fcs_vport_s *vport,
                      enum bfa_fcs_vport_event event);
static void     bfa_fcs_vport_sm_error(struct bfa_fcs_vport_s *vport,
                      enum bfa_fcs_vport_event event);
static void bfa_fcs_vport_sm_stopping(struct bfa_fcs_vport_s *vport,
                    enum bfa_fcs_vport_event event);
static void bfa_fcs_vport_sm_logo_for_stop(struct bfa_fcs_vport_s *vport,
                    enum bfa_fcs_vport_event event);

static struct bfa_sm_table_s  vport_sm_table[] = {
    {BFA_SM(bfa_fcs_vport_sm_uninit), BFA_FCS_VPORT_UNINIT},
    {BFA_SM(bfa_fcs_vport_sm_created), BFA_FCS_VPORT_CREATED},
    {BFA_SM(bfa_fcs_vport_sm_offline), BFA_FCS_VPORT_OFFLINE},
    {BFA_SM(bfa_fcs_vport_sm_fdisc), BFA_FCS_VPORT_FDISC},
    {BFA_SM(bfa_fcs_vport_sm_fdisc_retry), BFA_FCS_VPORT_FDISC_RETRY},
    {BFA_SM(bfa_fcs_vport_sm_fdisc_rsp_wait), BFA_FCS_VPORT_FDISC_RSP_WAIT},
    {BFA_SM(bfa_fcs_vport_sm_online), BFA_FCS_VPORT_ONLINE},
    {BFA_SM(bfa_fcs_vport_sm_deleting), BFA_FCS_VPORT_DELETING},
    {BFA_SM(bfa_fcs_vport_sm_cleanup), BFA_FCS_VPORT_CLEANUP},
    {BFA_SM(bfa_fcs_vport_sm_logo), BFA_FCS_VPORT_LOGO},
    {BFA_SM(bfa_fcs_vport_sm_error), BFA_FCS_VPORT_ERROR}
};

/*
 * Beginning state.
 */
static void
bfa_fcs_vport_sm_uninit(struct bfa_fcs_vport_s *vport,
            enum bfa_fcs_vport_event event)
{
    bfa_trc(__vport_fcs(vport), __vport_pwwn(vport));
    bfa_trc(__vport_fcs(vport), event);

    switch (event) {
    case BFA_FCS_VPORT_SM_CREATE:
        bfa_sm_set_state(vport, bfa_fcs_vport_sm_created);
        bfa_fcs_fabric_addvport(__vport_fabric(vport), vport);
        break;

    default:
        bfa_sm_fault(__vport_fcs(vport), event);
    }
}

/*
 * Created state - a start event is required to start up the state machine.
 */
static void
bfa_fcs_vport_sm_created(struct bfa_fcs_vport_s *vport,
            enum bfa_fcs_vport_event event)
{
    bfa_trc(__vport_fcs(vport), __vport_pwwn(vport));
    bfa_trc(__vport_fcs(vport), event);

    switch (event) {
    case BFA_FCS_VPORT_SM_START:
        if (bfa_sm_cmp_state(__vport_fabric(vport),
                    bfa_fcs_fabric_sm_online)
            && bfa_fcs_fabric_npiv_capable(__vport_fabric(vport))) {
            bfa_sm_set_state(vport, bfa_fcs_vport_sm_fdisc);
            bfa_fcs_vport_do_fdisc(vport);
        } else {
            /*
             * Fabric is offline or not NPIV capable, stay in
             * offline state.
             */
            vport->vport_stats.fab_no_npiv++;
            bfa_sm_set_state(vport, bfa_fcs_vport_sm_offline);
        }
        break;

    case BFA_FCS_VPORT_SM_DELETE:
        bfa_sm_set_state(vport, bfa_fcs_vport_sm_cleanup);
        bfa_fcs_lport_delete(&vport->lport);
        break;

    case BFA_FCS_VPORT_SM_ONLINE:
    case BFA_FCS_VPORT_SM_OFFLINE:
        /*
         * Ignore ONLINE/OFFLINE events from fabric
         * till vport is started.
         */
        break;

    default:
        bfa_sm_fault(__vport_fcs(vport), event);
    }
}

/*
 * Offline state - awaiting ONLINE event from fabric SM.
 */
static void
bfa_fcs_vport_sm_offline(struct bfa_fcs_vport_s *vport,
            enum bfa_fcs_vport_event event)
{
    bfa_trc(__vport_fcs(vport), __vport_pwwn(vport));
    bfa_trc(__vport_fcs(vport), event);

    switch (event) {
    case BFA_FCS_VPORT_SM_DELETE:
        bfa_sm_set_state(vport, bfa_fcs_vport_sm_cleanup);
        bfa_fcs_lport_delete(&vport->lport);
        break;

    case BFA_FCS_VPORT_SM_ONLINE:
        bfa_sm_set_state(vport, bfa_fcs_vport_sm_fdisc);
        vport->fdisc_retries = 0;
        bfa_fcs_vport_do_fdisc(vport);
        break;

    case BFA_FCS_VPORT_SM_STOP:
        bfa_sm_set_state(vport, bfa_fcs_vport_sm_cleanup);
        bfa_sm_send_event(&vport->lport, BFA_FCS_PORT_SM_STOP);
        break;

    case BFA_FCS_VPORT_SM_OFFLINE:
        /*
         * This can happen if the vport couldn't be initialzied
         * due the fact that the npiv was not enabled on the switch.
         * In that case we will put the vport in offline state.
         * However, the link can go down and cause the this event to
         * be sent when we are already offline. Ignore it.
         */
        break;

    default:
        bfa_sm_fault(__vport_fcs(vport), event);
    }
}


/*
 * FDISC is sent and awaiting reply from fabric.
 */
static void
bfa_fcs_vport_sm_fdisc(struct bfa_fcs_vport_s *vport,
            enum bfa_fcs_vport_event event)
{
    bfa_trc(__vport_fcs(vport), __vport_pwwn(vport));
    bfa_trc(__vport_fcs(vport), event);

    switch (event) {
    case BFA_FCS_VPORT_SM_DELETE:
        bfa_sm_set_state(vport, bfa_fcs_vport_sm_fdisc_rsp_wait);
        break;

    case BFA_FCS_VPORT_SM_OFFLINE:
        bfa_sm_set_state(vport, bfa_fcs_vport_sm_offline);
        bfa_sm_send_event(vport->lps, BFA_LPS_SM_OFFLINE);
        break;

    case BFA_FCS_VPORT_SM_RSP_OK:
        bfa_sm_set_state(vport, bfa_fcs_vport_sm_online);
        bfa_fcs_lport_online(&vport->lport);
        break;

    case BFA_FCS_VPORT_SM_RSP_ERROR:
        bfa_sm_set_state(vport, bfa_fcs_vport_sm_fdisc_retry);
        bfa_timer_start(__vport_bfa(vport), &vport->timer,
                    bfa_fcs_vport_timeout, vport,
                    BFA_FCS_RETRY_TIMEOUT);
        break;

    case BFA_FCS_VPORT_SM_RSP_FAILED:
        bfa_sm_set_state(vport, bfa_fcs_vport_sm_offline);
        break;

    case BFA_FCS_VPORT_SM_RSP_DUP_WWN:
        bfa_sm_set_state(vport, bfa_fcs_vport_sm_error);
        break;

    default:
        bfa_sm_fault(__vport_fcs(vport), event);
    }
}

/*
 * FDISC attempt failed - a timer is active to retry FDISC.
 */
static void
bfa_fcs_vport_sm_fdisc_retry(struct bfa_fcs_vport_s *vport,
                 enum bfa_fcs_vport_event event)
{
    bfa_trc(__vport_fcs(vport), __vport_pwwn(vport));
    bfa_trc(__vport_fcs(vport), event);

    switch (event) {
    case BFA_FCS_VPORT_SM_DELETE:
        bfa_sm_set_state(vport, bfa_fcs_vport_sm_cleanup);
        bfa_timer_stop(&vport->timer);
        bfa_fcs_lport_delete(&vport->lport);
        break;

    case BFA_FCS_VPORT_SM_OFFLINE:
        bfa_sm_set_state(vport, bfa_fcs_vport_sm_offline);
        bfa_timer_stop(&vport->timer);
        break;

    case BFA_FCS_VPORT_SM_TIMEOUT:
        bfa_sm_set_state(vport, bfa_fcs_vport_sm_fdisc);
        vport->vport_stats.fdisc_retries++;
        vport->fdisc_retries++;
        bfa_fcs_vport_do_fdisc(vport);
        break;

    default:
        bfa_sm_fault(__vport_fcs(vport), event);
    }
}

/*
 * FDISC is in progress and we got a vport delete request -
 * this is a wait state while we wait for fdisc response and
 * we will transition to the appropriate state - on rsp status.
 */
static void
bfa_fcs_vport_sm_fdisc_rsp_wait(struct bfa_fcs_vport_s *vport,
                enum bfa_fcs_vport_event event)
{
    bfa_trc(__vport_fcs(vport), __vport_pwwn(vport));
    bfa_trc(__vport_fcs(vport), event);

    switch (event) {
    case BFA_FCS_VPORT_SM_RSP_OK:
        bfa_sm_set_state(vport, bfa_fcs_vport_sm_deleting);
        bfa_fcs_lport_delete(&vport->lport);
        break;

    case BFA_FCS_VPORT_SM_DELETE:
        break;

    case BFA_FCS_VPORT_SM_OFFLINE:
    case BFA_FCS_VPORT_SM_RSP_ERROR:
    case BFA_FCS_VPORT_SM_RSP_FAILED:
    case BFA_FCS_VPORT_SM_RSP_DUP_WWN:
        bfa_sm_set_state(vport, bfa_fcs_vport_sm_cleanup);
        bfa_sm_send_event(vport->lps, BFA_LPS_SM_OFFLINE);
        bfa_fcs_lport_delete(&vport->lport);
        break;

    default:
        bfa_sm_fault(__vport_fcs(vport), event);
    }
}

/*
 * Vport is online (FDISC is complete).
 */
static void
bfa_fcs_vport_sm_online(struct bfa_fcs_vport_s *vport,
            enum bfa_fcs_vport_event event)
{
    bfa_trc(__vport_fcs(vport), __vport_pwwn(vport));
    bfa_trc(__vport_fcs(vport), event);

    switch (event) {
    case BFA_FCS_VPORT_SM_DELETE:
        bfa_sm_set_state(vport, bfa_fcs_vport_sm_deleting);
        bfa_fcs_lport_delete(&vport->lport);
        break;

    case BFA_FCS_VPORT_SM_STOP:
        bfa_sm_set_state(vport, bfa_fcs_vport_sm_stopping);
        bfa_sm_send_event(&vport->lport, BFA_FCS_PORT_SM_STOP);
        break;

    case BFA_FCS_VPORT_SM_OFFLINE:
        bfa_sm_set_state(vport, bfa_fcs_vport_sm_offline);
        bfa_sm_send_event(vport->lps, BFA_LPS_SM_OFFLINE);
        bfa_fcs_lport_offline(&vport->lport);
        break;

    default:
        bfa_sm_fault(__vport_fcs(vport), event);
    }
}

/*
 * Vport is being stopped - awaiting lport stop completion to send
 * LOGO to fabric.
 */
static void
bfa_fcs_vport_sm_stopping(struct bfa_fcs_vport_s *vport,
              enum bfa_fcs_vport_event event)
{
    bfa_trc(__vport_fcs(vport), __vport_pwwn(vport));
    bfa_trc(__vport_fcs(vport), event);

    switch (event) {
    case BFA_FCS_VPORT_SM_STOPCOMP:
        bfa_sm_set_state(vport, bfa_fcs_vport_sm_logo_for_stop);
        bfa_fcs_vport_do_logo(vport);
        break;

    case BFA_FCS_VPORT_SM_OFFLINE:
        bfa_sm_set_state(vport, bfa_fcs_vport_sm_cleanup);
        break;

    default:
        bfa_sm_fault(__vport_fcs(vport), event);
    }
}

/*
 * Vport is being deleted - awaiting lport delete completion to send
 * LOGO to fabric.
 */
static void
bfa_fcs_vport_sm_deleting(struct bfa_fcs_vport_s *vport,
            enum bfa_fcs_vport_event event)
{
    bfa_trc(__vport_fcs(vport), __vport_pwwn(vport));
    bfa_trc(__vport_fcs(vport), event);

    switch (event) {
    case BFA_FCS_VPORT_SM_DELETE:
        break;

    case BFA_FCS_VPORT_SM_DELCOMP:
        bfa_sm_set_state(vport, bfa_fcs_vport_sm_logo);
        bfa_fcs_vport_do_logo(vport);
        break;

    case BFA_FCS_VPORT_SM_OFFLINE:
        bfa_sm_set_state(vport, bfa_fcs_vport_sm_cleanup);
        break;

    default:
        bfa_sm_fault(__vport_fcs(vport), event);
    }
}

/*
 * Error State.
 * This state will be set when the Vport Creation fails due
 * to errors like Dup WWN. In this state only operation allowed
 * is a Vport Delete.
 */
static void
bfa_fcs_vport_sm_error(struct bfa_fcs_vport_s *vport,
            enum bfa_fcs_vport_event event)
{
    bfa_trc(__vport_fcs(vport), __vport_pwwn(vport));
    bfa_trc(__vport_fcs(vport), event);

    switch (event) {
    case BFA_FCS_VPORT_SM_DELETE:
        bfa_sm_set_state(vport, bfa_fcs_vport_sm_cleanup);
        bfa_fcs_lport_delete(&vport->lport);
        break;

    default:
        bfa_trc(__vport_fcs(vport), event);
    }
}

/*
 * Lport cleanup is in progress since vport is being deleted. Fabric is
 * offline, so no LOGO is needed to complete vport deletion.
 */
static void
bfa_fcs_vport_sm_cleanup(struct bfa_fcs_vport_s *vport,
            enum bfa_fcs_vport_event event)
{
    bfa_trc(__vport_fcs(vport), __vport_pwwn(vport));
    bfa_trc(__vport_fcs(vport), event);

    switch (event) {
    case BFA_FCS_VPORT_SM_DELCOMP:
        bfa_sm_set_state(vport, bfa_fcs_vport_sm_uninit);
        bfa_fcs_vport_free(vport);
        break;

    case BFA_FCS_VPORT_SM_STOPCOMP:
        bfa_sm_set_state(vport, bfa_fcs_vport_sm_created);
        break;

    case BFA_FCS_VPORT_SM_DELETE:
        break;

    default:
        bfa_sm_fault(__vport_fcs(vport), event);
    }
}

/*
 * LOGO is sent to fabric. Vport stop is in progress. Lport stop cleanup
 * is done.
 */
static void
bfa_fcs_vport_sm_logo_for_stop(struct bfa_fcs_vport_s *vport,
                   enum bfa_fcs_vport_event event)
{
    bfa_trc(__vport_fcs(vport), __vport_pwwn(vport));
    bfa_trc(__vport_fcs(vport), event);

    switch (event) {
    case BFA_FCS_VPORT_SM_OFFLINE:
        bfa_sm_send_event(vport->lps, BFA_LPS_SM_OFFLINE);
        /*
         * !!! fall through !!!
         */

    case BFA_FCS_VPORT_SM_RSP_OK:
    case BFA_FCS_VPORT_SM_RSP_ERROR:
        bfa_sm_set_state(vport, bfa_fcs_vport_sm_created);
        break;

    default:
        bfa_sm_fault(__vport_fcs(vport), event);
    }
}

/*
 * LOGO is sent to fabric. Vport delete is in progress. Lport delete cleanup
 * is done.
 */
static void
bfa_fcs_vport_sm_logo(struct bfa_fcs_vport_s *vport,
            enum bfa_fcs_vport_event event)
{
    bfa_trc(__vport_fcs(vport), __vport_pwwn(vport));
    bfa_trc(__vport_fcs(vport), event);

    switch (event) {
    case BFA_FCS_VPORT_SM_OFFLINE:
        bfa_sm_send_event(vport->lps, BFA_LPS_SM_OFFLINE);
        /*
         * !!! fall through !!!
         */

    case BFA_FCS_VPORT_SM_RSP_OK:
    case BFA_FCS_VPORT_SM_RSP_ERROR:
        bfa_sm_set_state(vport, bfa_fcs_vport_sm_uninit);
        bfa_fcs_vport_free(vport);
        break;

    case BFA_FCS_VPORT_SM_DELETE:
        break;

    default:
        bfa_sm_fault(__vport_fcs(vport), event);
    }
}



/*
 *  fcs_vport_private FCS virtual port private functions
 */
/*
 * Send AEN notification
 */
static void
bfa_fcs_vport_aen_post(struct bfa_fcs_lport_s *port,
               enum bfa_lport_aen_event event)
{
    struct bfad_s *bfad = (struct bfad_s *)port->fabric->fcs->bfad;
    struct bfa_aen_entry_s  *aen_entry;

    bfad_get_aen_entry(bfad, aen_entry);
    if (!aen_entry)
        return;

    aen_entry->aen_data.lport.vf_id = port->fabric->vf_id;
    aen_entry->aen_data.lport.roles = port->port_cfg.roles;
    aen_entry->aen_data.lport.ppwwn = bfa_fcs_lport_get_pwwn(
                    bfa_fcs_get_base_port(port->fcs));
    aen_entry->aen_data.lport.lpwwn = bfa_fcs_lport_get_pwwn(port);

    /* Send the AEN notification */
    bfad_im_post_vendor_event(aen_entry, bfad, ++port->fcs->fcs_aen_seq,
                  BFA_AEN_CAT_LPORT, event);
}

/*
 * This routine will be called to send a FDISC command.
 */
static void
bfa_fcs_vport_do_fdisc(struct bfa_fcs_vport_s *vport)
{
    bfa_lps_fdisc(vport->lps, vport,
        bfa_fcport_get_maxfrsize(__vport_bfa(vport)),
        __vport_pwwn(vport), __vport_nwwn(vport));
    vport->vport_stats.fdisc_sent++;
}

static void
bfa_fcs_vport_fdisc_rejected(struct bfa_fcs_vport_s *vport)
{
    u8      lsrjt_rsn = vport->lps->lsrjt_rsn;
    u8      lsrjt_expl = vport->lps->lsrjt_expl;

    bfa_trc(__vport_fcs(vport), lsrjt_rsn);
    bfa_trc(__vport_fcs(vport), lsrjt_expl);

    /* For certain reason codes, we don't want to retry. */
    switch (vport->lps->lsrjt_expl) {
    case FC_LS_RJT_EXP_INV_PORT_NAME: /* by brocade */
    case FC_LS_RJT_EXP_INVALID_NPORT_ID: /* by Cisco */
        if (vport->fdisc_retries < BFA_FCS_VPORT_MAX_RETRIES)
            bfa_sm_send_event(vport, BFA_FCS_VPORT_SM_RSP_ERROR);
        else {
            bfa_fcs_vport_aen_post(&vport->lport,
                    BFA_LPORT_AEN_NPIV_DUP_WWN);
            bfa_sm_send_event(vport, BFA_FCS_VPORT_SM_RSP_DUP_WWN);
        }
        break;

    case FC_LS_RJT_EXP_INSUFF_RES:
        /*
         * This means max logins per port/switch setting on the
         * switch was exceeded.
         */
        if (vport->fdisc_retries < BFA_FCS_VPORT_MAX_RETRIES)
            bfa_sm_send_event(vport, BFA_FCS_VPORT_SM_RSP_ERROR);
        else {
            bfa_fcs_vport_aen_post(&vport->lport,
                    BFA_LPORT_AEN_NPIV_FABRIC_MAX);
            bfa_sm_send_event(vport, BFA_FCS_VPORT_SM_RSP_FAILED);
        }
        break;

    default:
        if (vport->fdisc_retries == 0)
            bfa_fcs_vport_aen_post(&vport->lport,
                    BFA_LPORT_AEN_NPIV_UNKNOWN);
        bfa_sm_send_event(vport, BFA_FCS_VPORT_SM_RSP_ERROR);
    }
}

/*
 *  Called to send a logout to the fabric. Used when a V-Port is
 *  deleted/stopped.
 */
static void
bfa_fcs_vport_do_logo(struct bfa_fcs_vport_s *vport)
{
    bfa_trc(__vport_fcs(vport), __vport_pwwn(vport));

    vport->vport_stats.logo_sent++;
    bfa_lps_fdisclogo(vport->lps);
}


/*
 *     This routine will be called by bfa_timer on timer timeouts.
 *
 *  param[in]   vport       - pointer to bfa_fcs_vport_t.
 *  param[out]  vport_status    - pointer to return vport status in
 *
 *  return
 *      void
 *
 *  Special Considerations:
 *
 *  note
 */
static void
bfa_fcs_vport_timeout(void *vport_arg)
{
    struct bfa_fcs_vport_s *vport = (struct bfa_fcs_vport_s *) vport_arg;

    vport->vport_stats.fdisc_timeouts++;
    bfa_sm_send_event(vport, BFA_FCS_VPORT_SM_TIMEOUT);
}

static void
bfa_fcs_vport_free(struct bfa_fcs_vport_s *vport)
{
    struct bfad_vport_s *vport_drv =
            (struct bfad_vport_s *)vport->vport_drv;

    bfa_fcs_fabric_delvport(__vport_fabric(vport), vport);
    bfa_lps_delete(vport->lps);

    if (vport_drv->comp_del) {
        complete(vport_drv->comp_del);
        return;
    }

    /*
     * We queue the vport delete work to the IM work_q from here.
     * The memory for the bfad_vport_s is freed from the FC function
     * template vport_delete entry point.
     */
    bfad_im_port_delete(vport_drv->drv_port.bfad, &vport_drv->drv_port);
}

/*
 *  fcs_vport_public FCS virtual port public interfaces
 */

/*
 * Online notification from fabric SM.
 */
void
bfa_fcs_vport_online(struct bfa_fcs_vport_s *vport)
{
    vport->vport_stats.fab_online++;
    if (bfa_fcs_fabric_npiv_capable(__vport_fabric(vport)))
        bfa_sm_send_event(vport, BFA_FCS_VPORT_SM_ONLINE);
    else
        vport->vport_stats.fab_no_npiv++;
}

/*
 * Offline notification from fabric SM.
 */
void
bfa_fcs_vport_offline(struct bfa_fcs_vport_s *vport)
{
    vport->vport_stats.fab_offline++;
    bfa_sm_send_event(vport, BFA_FCS_VPORT_SM_OFFLINE);
}

/*
 * Cleanup notification from fabric SM on link timer expiry.
 */
void
bfa_fcs_vport_cleanup(struct bfa_fcs_vport_s *vport)
{
    vport->vport_stats.fab_cleanup++;
}

/*
 * Stop notification from fabric SM. To be invoked from within FCS.
 */
void
bfa_fcs_vport_fcs_stop(struct bfa_fcs_vport_s *vport)
{
    bfa_sm_send_event(vport, BFA_FCS_VPORT_SM_STOP);
}

/*
 * delete notification from fabric SM. To be invoked from within FCS.
 */
void
bfa_fcs_vport_fcs_delete(struct bfa_fcs_vport_s *vport)
{
    bfa_sm_send_event(vport, BFA_FCS_VPORT_SM_DELETE);
}

/*
 * Stop completion callback from associated lport
 */
void
bfa_fcs_vport_stop_comp(struct bfa_fcs_vport_s *vport)
{
    bfa_sm_send_event(vport, BFA_FCS_VPORT_SM_STOPCOMP);
}

/*
 * Delete completion callback from associated lport
 */
void
bfa_fcs_vport_delete_comp(struct bfa_fcs_vport_s *vport)
{
    bfa_sm_send_event(vport, BFA_FCS_VPORT_SM_DELCOMP);
}



/*
 *  fcs_vport_api Virtual port API
 */

/*
 *  Use this function to instantiate a new FCS vport object. This
 *  function will not trigger any HW initialization process (which will be
 *  done in vport_start() call)
 *
 *  param[in] vport -       pointer to bfa_fcs_vport_t. This space
 *                  needs to be allocated by the driver.
 *  param[in] fcs       -   FCS instance
 *  param[in] vport_cfg -   vport configuration
 *  param[in] vf_id     -   VF_ID if vport is created within a VF.
 *                  FC_VF_ID_NULL to specify base fabric.
 *  param[in] vport_drv -   Opaque handle back to the driver's vport
 *                  structure
 *
 *  retval BFA_STATUS_OK - on success.
 *  retval BFA_STATUS_FAILED - on failure.
 */
bfa_status_t
bfa_fcs_vport_create(struct bfa_fcs_vport_s *vport, struct bfa_fcs_s *fcs,
        u16 vf_id, struct bfa_lport_cfg_s *vport_cfg,
        struct bfad_vport_s *vport_drv)
{
    if (vport_cfg->pwwn == 0)
        return BFA_STATUS_INVALID_WWN;

    if (bfa_fcs_lport_get_pwwn(&fcs->fabric.bport) == vport_cfg->pwwn)
        return BFA_STATUS_VPORT_WWN_BP;

    if (bfa_fcs_vport_lookup(fcs, vf_id, vport_cfg->pwwn) != NULL)
        return BFA_STATUS_VPORT_EXISTS;

    if (fcs->fabric.num_vports ==
            bfa_lps_get_max_vport(fcs->bfa))
        return BFA_STATUS_VPORT_MAX;

    vport->lps = bfa_lps_alloc(fcs->bfa);
    if (!vport->lps)
        return BFA_STATUS_VPORT_MAX;

    vport->vport_drv = vport_drv;
    vport_cfg->preboot_vp = BFA_FALSE;

    bfa_sm_set_state(vport, bfa_fcs_vport_sm_uninit);
    bfa_fcs_lport_attach(&vport->lport, fcs, vf_id, vport);
    bfa_fcs_lport_init(&vport->lport, vport_cfg);
    bfa_sm_send_event(vport, BFA_FCS_VPORT_SM_CREATE);

    return BFA_STATUS_OK;
}

/*
 *  Use this function to instantiate a new FCS PBC vport object. This
 *  function will not trigger any HW initialization process (which will be
 *  done in vport_start() call)
 *
 *  param[in] vport -   pointer to bfa_fcs_vport_t. This space
 *              needs to be allocated by the driver.
 *  param[in] fcs   -   FCS instance
 *  param[in] vport_cfg -   vport configuration
 *  param[in] vf_id     -   VF_ID if vport is created within a VF.
 *                  FC_VF_ID_NULL to specify base fabric.
 *  param[in] vport_drv -   Opaque handle back to the driver's vport
 *                  structure
 *
 *  retval BFA_STATUS_OK - on success.
 *  retval BFA_STATUS_FAILED - on failure.
 */
bfa_status_t
bfa_fcs_pbc_vport_create(struct bfa_fcs_vport_s *vport, struct bfa_fcs_s *fcs,
            u16 vf_id, struct bfa_lport_cfg_s *vport_cfg,
            struct bfad_vport_s *vport_drv)
{
    bfa_status_t rc;

    rc = bfa_fcs_vport_create(vport, fcs, vf_id, vport_cfg, vport_drv);
    vport->lport.port_cfg.preboot_vp = BFA_TRUE;

    return rc;
}

/*
 *  Use this function to findout if this is a pbc vport or not.
 *
 * @param[in] vport - pointer to bfa_fcs_vport_t.
 *
 * @returns None
 */
bfa_boolean_t
bfa_fcs_is_pbc_vport(struct bfa_fcs_vport_s *vport)
{

    if (vport && (vport->lport.port_cfg.preboot_vp == BFA_TRUE))
        return BFA_TRUE;
    else
        return BFA_FALSE;

}

/*
 * Use this function initialize the vport.
 *
 * @param[in] vport - pointer to bfa_fcs_vport_t.
 *
 * @returns None
 */
bfa_status_t
bfa_fcs_vport_start(struct bfa_fcs_vport_s *vport)
{
    bfa_sm_send_event(vport, BFA_FCS_VPORT_SM_START);

    return BFA_STATUS_OK;
}

/*
 *  Use this function quiese the vport object. This function will return
 *  immediately, when the vport is actually stopped, the
 *  bfa_drv_vport_stop_cb() will be called.
 *
 *  param[in] vport - pointer to bfa_fcs_vport_t.
 *
 *  return None
 */
bfa_status_t
bfa_fcs_vport_stop(struct bfa_fcs_vport_s *vport)
{
    bfa_sm_send_event(vport, BFA_FCS_VPORT_SM_STOP);

    return BFA_STATUS_OK;
}

/*
 *  Use this function to delete a vport object. Fabric object should
 *  be stopped before this function call.
 *
 *  !!!!!!! Donot invoke this from within FCS  !!!!!!!
 *
 *  param[in] vport - pointer to bfa_fcs_vport_t.
 *
 *  return     None
 */
bfa_status_t
bfa_fcs_vport_delete(struct bfa_fcs_vport_s *vport)
{

    if (vport->lport.port_cfg.preboot_vp)
        return BFA_STATUS_PBC;

    bfa_sm_send_event(vport, BFA_FCS_VPORT_SM_DELETE);

    return BFA_STATUS_OK;
}

/*
 *  Use this function to get vport's current status info.
 *
 *  param[in] vport     pointer to bfa_fcs_vport_t.
 *  param[out] attr     pointer to return vport attributes
 *
 *  return None
 */
void
bfa_fcs_vport_get_attr(struct bfa_fcs_vport_s *vport,
            struct bfa_vport_attr_s *attr)
{
    if (vport == NULL || attr == NULL)
        return;

    memset(attr, 0, sizeof(struct bfa_vport_attr_s));

    bfa_fcs_lport_get_attr(&vport->lport, &attr->port_attr);
    attr->vport_state = bfa_sm_to_state(vport_sm_table, vport->sm);
}


/*
 *  Lookup a virtual port. Excludes base port from lookup.
 */
struct bfa_fcs_vport_s *
bfa_fcs_vport_lookup(struct bfa_fcs_s *fcs, u16 vf_id, wwn_t vpwwn)
{
    struct bfa_fcs_vport_s *vport;
    struct bfa_fcs_fabric_s *fabric;

    bfa_trc(fcs, vf_id);
    bfa_trc(fcs, vpwwn);

    fabric = bfa_fcs_vf_lookup(fcs, vf_id);
    if (!fabric) {
        bfa_trc(fcs, vf_id);
        return NULL;
    }

    vport = bfa_fcs_fabric_vport_lookup(fabric, vpwwn);
    return vport;
}

/*
 * FDISC Response
 */
void
bfa_cb_lps_fdisc_comp(void *bfad, void *uarg, bfa_status_t status)
{
    struct bfa_fcs_vport_s *vport = uarg;

    bfa_trc(__vport_fcs(vport), __vport_pwwn(vport));
    bfa_trc(__vport_fcs(vport), status);

    switch (status) {
    case BFA_STATUS_OK:
        /*
         * Initialize the V-Port fields
         */
        __vport_fcid(vport) = vport->lps->lp_pid;
        vport->vport_stats.fdisc_accepts++;
        bfa_sm_send_event(vport, BFA_FCS_VPORT_SM_RSP_OK);
        break;

    case BFA_STATUS_INVALID_MAC:
        /* Only for CNA */
        vport->vport_stats.fdisc_acc_bad++;
        bfa_sm_send_event(vport, BFA_FCS_VPORT_SM_RSP_ERROR);

        break;

    case BFA_STATUS_EPROTOCOL:
        switch (vport->lps->ext_status) {
        case BFA_EPROTO_BAD_ACCEPT:
            vport->vport_stats.fdisc_acc_bad++;
            break;

        case BFA_EPROTO_UNKNOWN_RSP:
            vport->vport_stats.fdisc_unknown_rsp++;
            break;

        default:
            break;
        }

        bfa_sm_send_event(vport, BFA_FCS_VPORT_SM_RSP_ERROR);
        break;

    case BFA_STATUS_FABRIC_RJT:
        vport->vport_stats.fdisc_rejects++;
        bfa_fcs_vport_fdisc_rejected(vport);
        break;

    default:
        vport->vport_stats.fdisc_rsp_err++;
        bfa_sm_send_event(vport, BFA_FCS_VPORT_SM_RSP_ERROR);
    }
}

/*
 * LOGO response
 */
void
bfa_cb_lps_fdisclogo_comp(void *bfad, void *uarg)
{
    struct bfa_fcs_vport_s *vport = uarg;
    bfa_sm_send_event(vport, BFA_FCS_VPORT_SM_RSP_OK);
}

/*
 * Received clear virtual link
 */
void
bfa_cb_lps_cvl_event(void *bfad, void *uarg)
{
    struct bfa_fcs_vport_s *vport = uarg;

    /* Send an Offline followed by an ONLINE */
    bfa_sm_send_event(vport, BFA_FCS_VPORT_SM_OFFLINE);
    bfa_sm_send_event(vport, BFA_FCS_VPORT_SM_ONLINE);
}