root/drivers/scsi/bfa/bfa_fcs_rport.c 
// SPDX-License-Identifier: GPL-2.0-only
/*
 * Copyright (c) 2005-2014 Brocade Communications Systems, Inc.
 * Copyright (c) 2014- QLogic Corporation.
 * All rights reserved
 * www.qlogic.com
 *
 * Linux driver for QLogic BR-series Fibre Channel Host Bus Adapter.
 */

/*
 *  rport.c Remote port implementation.
 */

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

BFA_TRC_FILE(FCS, RPORT);

static u32
bfa_fcs_rport_del_timeout = BFA_FCS_RPORT_DEF_DEL_TIMEOUT * 1000;
         /* In millisecs */
/*
 * bfa_fcs_rport_max_logins is max count of bfa_fcs_rports
 * whereas DEF_CFG_NUM_RPORTS is max count of bfa_rports
 */
static u32 bfa_fcs_rport_max_logins = BFA_FCS_MAX_RPORT_LOGINS;

/*
 * forward declarations
 */
static struct bfa_fcs_rport_s *bfa_fcs_rport_alloc(
                struct bfa_fcs_lport_s *port, wwn_t pwwn, u32 rpid);
static void     bfa_fcs_rport_free(struct bfa_fcs_rport_s *rport);
static void     bfa_fcs_rport_hal_online(struct bfa_fcs_rport_s *rport);
static void     bfa_fcs_rport_fcs_online_action(struct bfa_fcs_rport_s *rport);
static void     bfa_fcs_rport_hal_online_action(struct bfa_fcs_rport_s *rport);
static void     bfa_fcs_rport_fcs_offline_action(struct bfa_fcs_rport_s *rport);
static void     bfa_fcs_rport_hal_offline_action(struct bfa_fcs_rport_s *rport);
static void     bfa_fcs_rport_update(struct bfa_fcs_rport_s *rport,
                                        struct fc_logi_s *plogi);
static void     bfa_fcs_rport_timeout(void *arg);
static void     bfa_fcs_rport_send_plogi(void *rport_cbarg,
                                         struct bfa_fcxp_s *fcxp_alloced);
static void     bfa_fcs_rport_send_plogiacc(void *rport_cbarg,
                                        struct bfa_fcxp_s *fcxp_alloced);
static void     bfa_fcs_rport_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_rport_send_adisc(void *rport_cbarg,
                                         struct bfa_fcxp_s *fcxp_alloced);
static void     bfa_fcs_rport_adisc_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_rport_send_nsdisc(void *rport_cbarg,
                                         struct bfa_fcxp_s *fcxp_alloced);
static void     bfa_fcs_rport_gidpn_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_rport_gpnid_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_rport_send_logo(void *rport_cbarg,
                                        struct bfa_fcxp_s *fcxp_alloced);
static void     bfa_fcs_rport_send_logo_acc(void *rport_cbarg);
static void     bfa_fcs_rport_process_prli(struct bfa_fcs_rport_s *rport,
                                        struct fchs_s *rx_fchs, u16 len);
static void     bfa_fcs_rport_send_ls_rjt(struct bfa_fcs_rport_s *rport,
                                struct fchs_s *rx_fchs, u8 reason_code,
                                          u8 reason_code_expl);
static void     bfa_fcs_rport_process_adisc(struct bfa_fcs_rport_s *rport,
                                struct fchs_s *rx_fchs, u16 len);
static void bfa_fcs_rport_send_prlo_acc(struct bfa_fcs_rport_s *rport);
static void     bfa_fcs_rport_hal_offline(struct bfa_fcs_rport_s *rport);

static void     bfa_fcs_rport_sm_uninit(struct bfa_fcs_rport_s *rport,
                                        enum rport_event event);
static void     bfa_fcs_rport_sm_plogi_sending(struct bfa_fcs_rport_s *rport,
                                                enum rport_event event);
static void     bfa_fcs_rport_sm_plogiacc_sending(struct bfa_fcs_rport_s *rport,
                                                  enum rport_event event);
static void     bfa_fcs_rport_sm_plogi_retry(struct bfa_fcs_rport_s *rport,
                                                enum rport_event event);
static void     bfa_fcs_rport_sm_plogi(struct bfa_fcs_rport_s *rport,
                                        enum rport_event event);
static void     bfa_fcs_rport_sm_fc4_fcs_online(struct bfa_fcs_rport_s *rport,
                                        enum rport_event event);
static void     bfa_fcs_rport_sm_hal_online(struct bfa_fcs_rport_s *rport,
                                                enum rport_event event);
static void     bfa_fcs_rport_sm_online(struct bfa_fcs_rport_s *rport,
                                        enum rport_event event);
static void     bfa_fcs_rport_sm_nsquery_sending(struct bfa_fcs_rport_s *rport,
                                                 enum rport_event event);
static void     bfa_fcs_rport_sm_nsquery(struct bfa_fcs_rport_s *rport,
                                         enum rport_event event);
static void     bfa_fcs_rport_sm_adisc_online_sending(
                        struct bfa_fcs_rport_s *rport, enum rport_event event);
static void     bfa_fcs_rport_sm_adisc_online(struct bfa_fcs_rport_s *rport,
                                        enum rport_event event);
static void     bfa_fcs_rport_sm_adisc_offline_sending(struct bfa_fcs_rport_s
                                        *rport, enum rport_event event);
static void     bfa_fcs_rport_sm_adisc_offline(struct bfa_fcs_rport_s *rport,
                                        enum rport_event event);
static void     bfa_fcs_rport_sm_fc4_logorcv(struct bfa_fcs_rport_s *rport,
                                                enum rport_event event);
static void     bfa_fcs_rport_sm_fc4_logosend(struct bfa_fcs_rport_s *rport,
                                                enum rport_event event);
static void     bfa_fcs_rport_sm_fc4_offline(struct bfa_fcs_rport_s *rport,
                                                enum rport_event event);
static void     bfa_fcs_rport_sm_hcb_offline(struct bfa_fcs_rport_s *rport,
                                                enum rport_event event);
static void     bfa_fcs_rport_sm_hcb_logorcv(struct bfa_fcs_rport_s *rport,
                                                enum rport_event event);
static void     bfa_fcs_rport_sm_hcb_logosend(struct bfa_fcs_rport_s *rport,
                                                enum rport_event event);
static void     bfa_fcs_rport_sm_logo_sending(struct bfa_fcs_rport_s *rport,
                                                enum rport_event event);
static void     bfa_fcs_rport_sm_offline(struct bfa_fcs_rport_s *rport,
                                         enum rport_event event);
static void     bfa_fcs_rport_sm_nsdisc_sending(struct bfa_fcs_rport_s *rport,
                                                enum rport_event event);
static void     bfa_fcs_rport_sm_nsdisc_retry(struct bfa_fcs_rport_s *rport,
                                                enum rport_event event);
static void     bfa_fcs_rport_sm_nsdisc_sent(struct bfa_fcs_rport_s *rport,
                                                enum rport_event event);
static void     bfa_fcs_rport_sm_nsdisc_sent(struct bfa_fcs_rport_s *rport,
                                                enum rport_event event);
static void     bfa_fcs_rport_sm_fc4_off_delete(struct bfa_fcs_rport_s *rport,
                                                enum rport_event event);
static void     bfa_fcs_rport_sm_delete_pending(struct bfa_fcs_rport_s *rport,
                                                enum rport_event event);

struct bfa_fcs_rport_sm_table_s {
        bfa_fcs_rport_sm_t sm;          /*  state machine function      */
        enum bfa_rport_state state;     /*  state machine encoding      */
        char            *name;          /*  state name for display      */
};

static inline enum bfa_rport_state
bfa_rport_sm_to_state(struct bfa_fcs_rport_sm_table_s *smt, bfa_fcs_rport_sm_t sm)
{
        int i = 0;

        while (smt[i].sm && smt[i].sm != sm)
                i++;
        return smt[i].state;
}

static struct bfa_fcs_rport_sm_table_s rport_sm_table[] = {
        {BFA_SM(bfa_fcs_rport_sm_uninit), BFA_RPORT_UNINIT},
        {BFA_SM(bfa_fcs_rport_sm_plogi_sending), BFA_RPORT_PLOGI},
        {BFA_SM(bfa_fcs_rport_sm_plogiacc_sending), BFA_RPORT_ONLINE},
        {BFA_SM(bfa_fcs_rport_sm_plogi_retry), BFA_RPORT_PLOGI_RETRY},
        {BFA_SM(bfa_fcs_rport_sm_plogi), BFA_RPORT_PLOGI},
        {BFA_SM(bfa_fcs_rport_sm_fc4_fcs_online), BFA_RPORT_ONLINE},
        {BFA_SM(bfa_fcs_rport_sm_hal_online), BFA_RPORT_ONLINE},
        {BFA_SM(bfa_fcs_rport_sm_online), BFA_RPORT_ONLINE},
        {BFA_SM(bfa_fcs_rport_sm_nsquery_sending), BFA_RPORT_NSQUERY},
        {BFA_SM(bfa_fcs_rport_sm_nsquery), BFA_RPORT_NSQUERY},
        {BFA_SM(bfa_fcs_rport_sm_adisc_online_sending), BFA_RPORT_ADISC},
        {BFA_SM(bfa_fcs_rport_sm_adisc_online), BFA_RPORT_ADISC},
        {BFA_SM(bfa_fcs_rport_sm_adisc_offline_sending), BFA_RPORT_ADISC},
        {BFA_SM(bfa_fcs_rport_sm_adisc_offline), BFA_RPORT_ADISC},
        {BFA_SM(bfa_fcs_rport_sm_fc4_logorcv), BFA_RPORT_LOGORCV},
        {BFA_SM(bfa_fcs_rport_sm_fc4_logosend), BFA_RPORT_LOGO},
        {BFA_SM(bfa_fcs_rport_sm_fc4_offline), BFA_RPORT_OFFLINE},
        {BFA_SM(bfa_fcs_rport_sm_hcb_offline), BFA_RPORT_OFFLINE},
        {BFA_SM(bfa_fcs_rport_sm_hcb_logorcv), BFA_RPORT_LOGORCV},
        {BFA_SM(bfa_fcs_rport_sm_hcb_logosend), BFA_RPORT_LOGO},
        {BFA_SM(bfa_fcs_rport_sm_logo_sending), BFA_RPORT_LOGO},
        {BFA_SM(bfa_fcs_rport_sm_offline), BFA_RPORT_OFFLINE},
        {BFA_SM(bfa_fcs_rport_sm_nsdisc_sending), BFA_RPORT_NSDISC},
        {BFA_SM(bfa_fcs_rport_sm_nsdisc_retry), BFA_RPORT_NSDISC},
        {BFA_SM(bfa_fcs_rport_sm_nsdisc_sent), BFA_RPORT_NSDISC},
};

/*
 *              Beginning state.
 */
static void
bfa_fcs_rport_sm_uninit(struct bfa_fcs_rport_s *rport, enum rport_event event)
{
        bfa_trc(rport->fcs, rport->pwwn);
        bfa_trc(rport->fcs, rport->pid);
        bfa_trc(rport->fcs, event);

        switch (event) {
        case RPSM_EVENT_PLOGI_SEND:
                bfa_sm_set_state(rport, bfa_fcs_rport_sm_plogi_sending);
                rport->plogi_retries = 0;
                bfa_fcs_rport_send_plogi(rport, NULL);
                break;

        case RPSM_EVENT_PLOGI_RCVD:
                bfa_sm_set_state(rport, bfa_fcs_rport_sm_plogiacc_sending);
                bfa_fcs_rport_send_plogiacc(rport, NULL);
                break;

        case RPSM_EVENT_PLOGI_COMP:
                bfa_sm_set_state(rport, bfa_fcs_rport_sm_hal_online);
                bfa_fcs_rport_hal_online(rport);
                break;

        case RPSM_EVENT_ADDRESS_CHANGE:
        case RPSM_EVENT_ADDRESS_DISC:
                bfa_sm_set_state(rport, bfa_fcs_rport_sm_nsdisc_sending);
                rport->ns_retries = 0;
                bfa_fcs_rport_send_nsdisc(rport, NULL);
                break;
        default:
                bfa_sm_fault(rport->fcs, event);
        }
}

/*
 *              PLOGI is being sent.
 */
static void
bfa_fcs_rport_sm_plogi_sending(struct bfa_fcs_rport_s *rport,
         enum rport_event event)
{
        bfa_trc(rport->fcs, rport->pwwn);
        bfa_trc(rport->fcs, rport->pid);
        bfa_trc(rport->fcs, event);

        switch (event) {
        case RPSM_EVENT_FCXP_SENT:
                bfa_sm_set_state(rport, bfa_fcs_rport_sm_plogi);
                break;

        case RPSM_EVENT_DELETE:
                bfa_sm_set_state(rport, bfa_fcs_rport_sm_uninit);
                bfa_fcxp_walloc_cancel(rport->fcs->bfa, &rport->fcxp_wqe);
                bfa_fcs_rport_free(rport);
                break;

        case RPSM_EVENT_PLOGI_RCVD:
                bfa_sm_set_state(rport, bfa_fcs_rport_sm_plogiacc_sending);
                bfa_fcxp_walloc_cancel(rport->fcs->bfa, &rport->fcxp_wqe);
                bfa_fcs_rport_send_plogiacc(rport, NULL);
                break;

        case RPSM_EVENT_SCN_OFFLINE:
                bfa_sm_set_state(rport, bfa_fcs_rport_sm_offline);
                bfa_fcxp_walloc_cancel(rport->fcs->bfa, &rport->fcxp_wqe);
                bfa_timer_start(rport->fcs->bfa, &rport->timer,
                                bfa_fcs_rport_timeout, rport,
                                bfa_fcs_rport_del_timeout);
                break;
        case RPSM_EVENT_ADDRESS_CHANGE:
        case RPSM_EVENT_FAB_SCN:
                /* query the NS */
                bfa_fcxp_walloc_cancel(rport->fcs->bfa, &rport->fcxp_wqe);
                WARN_ON(!(bfa_fcport_get_topology(rport->port->fcs->bfa) !=
                                        BFA_PORT_TOPOLOGY_LOOP));
                bfa_sm_set_state(rport, bfa_fcs_rport_sm_nsdisc_sending);
                rport->ns_retries = 0;
                bfa_fcs_rport_send_nsdisc(rport, NULL);
                break;

        case RPSM_EVENT_LOGO_IMP:
                rport->pid = 0;
                bfa_sm_set_state(rport, bfa_fcs_rport_sm_offline);
                bfa_fcxp_walloc_cancel(rport->fcs->bfa, &rport->fcxp_wqe);
                bfa_timer_start(rport->fcs->bfa, &rport->timer,
                                bfa_fcs_rport_timeout, rport,
                                bfa_fcs_rport_del_timeout);
                break;


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

/*
 *              PLOGI is being sent.
 */
static void
bfa_fcs_rport_sm_plogiacc_sending(struct bfa_fcs_rport_s *rport,
         enum rport_event event)
{
        bfa_trc(rport->fcs, rport->pwwn);
        bfa_trc(rport->fcs, rport->pid);
        bfa_trc(rport->fcs, event);

        switch (event) {
        case RPSM_EVENT_FCXP_SENT:
                bfa_sm_set_state(rport, bfa_fcs_rport_sm_fc4_fcs_online);
                bfa_fcs_rport_fcs_online_action(rport);
                break;

        case RPSM_EVENT_DELETE:
                bfa_sm_set_state(rport, bfa_fcs_rport_sm_uninit);
                bfa_fcxp_walloc_cancel(rport->fcs->bfa, &rport->fcxp_wqe);
                bfa_fcs_rport_free(rport);
                break;

        case RPSM_EVENT_PLOGI_RCVD:
        case RPSM_EVENT_PLOGI_COMP:
        case RPSM_EVENT_FAB_SCN:
                /*
                 * Ignore, SCN is possibly online notification.
                 */
                break;

        case RPSM_EVENT_SCN_OFFLINE:
                bfa_sm_set_state(rport, bfa_fcs_rport_sm_offline);
                bfa_fcxp_walloc_cancel(rport->fcs->bfa, &rport->fcxp_wqe);
                bfa_timer_start(rport->fcs->bfa, &rport->timer,
                                bfa_fcs_rport_timeout, rport,
                                bfa_fcs_rport_del_timeout);
                break;

        case RPSM_EVENT_ADDRESS_CHANGE:
                bfa_fcxp_walloc_cancel(rport->fcs->bfa, &rport->fcxp_wqe);
                bfa_sm_set_state(rport, bfa_fcs_rport_sm_nsdisc_sending);
                rport->ns_retries = 0;
                bfa_fcs_rport_send_nsdisc(rport, NULL);
                break;

        case RPSM_EVENT_LOGO_IMP:
                rport->pid = 0;
                bfa_sm_set_state(rport, bfa_fcs_rport_sm_offline);
                bfa_fcxp_walloc_cancel(rport->fcs->bfa, &rport->fcxp_wqe);
                bfa_timer_start(rport->fcs->bfa, &rport->timer,
                                bfa_fcs_rport_timeout, rport,
                                bfa_fcs_rport_del_timeout);
                break;

        case RPSM_EVENT_HCB_OFFLINE:
                /*
                 * Ignore BFA callback, on a PLOGI receive we call bfa offline.
                 */
                break;

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

/*
 *              PLOGI is sent.
 */
static void
bfa_fcs_rport_sm_plogi_retry(struct bfa_fcs_rport_s *rport,
                        enum rport_event event)
{
        bfa_trc(rport->fcs, rport->pwwn);
        bfa_trc(rport->fcs, rport->pid);
        bfa_trc(rport->fcs, event);

        switch (event) {
        case RPSM_EVENT_TIMEOUT:
                bfa_sm_set_state(rport, bfa_fcs_rport_sm_plogi_sending);
                bfa_fcs_rport_send_plogi(rport, NULL);
                break;

        case RPSM_EVENT_DELETE:
                bfa_sm_set_state(rport, bfa_fcs_rport_sm_uninit);
                bfa_timer_stop(&rport->timer);
                bfa_fcs_rport_free(rport);
                break;

        case RPSM_EVENT_PRLO_RCVD:
        case RPSM_EVENT_LOGO_RCVD:
                break;

        case RPSM_EVENT_PLOGI_RCVD:
                bfa_sm_set_state(rport, bfa_fcs_rport_sm_plogiacc_sending);
                bfa_timer_stop(&rport->timer);
                bfa_fcs_rport_send_plogiacc(rport, NULL);
                break;

        case RPSM_EVENT_SCN_OFFLINE:
                bfa_sm_set_state(rport, bfa_fcs_rport_sm_offline);
                bfa_timer_stop(&rport->timer);
                bfa_timer_start(rport->fcs->bfa, &rport->timer,
                                bfa_fcs_rport_timeout, rport,
                                bfa_fcs_rport_del_timeout);
                break;

        case RPSM_EVENT_ADDRESS_CHANGE:
        case RPSM_EVENT_FAB_SCN:
                bfa_timer_stop(&rport->timer);
                WARN_ON(!(bfa_fcport_get_topology(rport->port->fcs->bfa) !=
                                        BFA_PORT_TOPOLOGY_LOOP));
                bfa_sm_set_state(rport, bfa_fcs_rport_sm_nsdisc_sending);
                rport->ns_retries = 0;
                bfa_fcs_rport_send_nsdisc(rport, NULL);
                break;

        case RPSM_EVENT_LOGO_IMP:
                rport->pid = 0;
                bfa_sm_set_state(rport, bfa_fcs_rport_sm_offline);
                bfa_timer_stop(&rport->timer);
                bfa_timer_start(rport->fcs->bfa, &rport->timer,
                                bfa_fcs_rport_timeout, rport,
                                bfa_fcs_rport_del_timeout);
                break;

        case RPSM_EVENT_PLOGI_COMP:
                bfa_sm_set_state(rport, bfa_fcs_rport_sm_fc4_fcs_online);
                bfa_timer_stop(&rport->timer);
                bfa_fcs_rport_fcs_online_action(rport);
                break;

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

/*
 *              PLOGI is sent.
 */
static void
bfa_fcs_rport_sm_plogi(struct bfa_fcs_rport_s *rport, enum rport_event event)
{
        bfa_trc(rport->fcs, rport->pwwn);
        bfa_trc(rport->fcs, rport->pid);
        bfa_trc(rport->fcs, event);

        switch (event) {
        case RPSM_EVENT_ACCEPTED:
                bfa_sm_set_state(rport, bfa_fcs_rport_sm_fc4_fcs_online);
                rport->plogi_retries = 0;
                bfa_fcs_rport_fcs_online_action(rport);
                break;

        case RPSM_EVENT_LOGO_RCVD:
                bfa_fcs_rport_send_logo_acc(rport);
                fallthrough;
        case RPSM_EVENT_PRLO_RCVD:
                if (rport->prlo == BFA_TRUE)
                        bfa_fcs_rport_send_prlo_acc(rport);

                bfa_fcxp_discard(rport->fcxp);
                fallthrough;
        case RPSM_EVENT_FAILED:
                if (rport->plogi_retries < BFA_FCS_RPORT_MAX_RETRIES) {
                        rport->plogi_retries++;
                        bfa_sm_set_state(rport, bfa_fcs_rport_sm_plogi_retry);
                        bfa_timer_start(rport->fcs->bfa, &rport->timer,
                                        bfa_fcs_rport_timeout, rport,
                                        BFA_FCS_RETRY_TIMEOUT);
                } else {
                        bfa_stats(rport->port, rport_del_max_plogi_retry);
                        rport->old_pid = rport->pid;
                        rport->pid = 0;
                        bfa_sm_set_state(rport, bfa_fcs_rport_sm_offline);
                        bfa_timer_start(rport->fcs->bfa, &rport->timer,
                                        bfa_fcs_rport_timeout, rport,
                                        bfa_fcs_rport_del_timeout);
                }
                break;

        case RPSM_EVENT_SCN_ONLINE:
                break;

        case RPSM_EVENT_SCN_OFFLINE:
                bfa_sm_set_state(rport, bfa_fcs_rport_sm_offline);
                bfa_fcxp_discard(rport->fcxp);
                bfa_timer_start(rport->fcs->bfa, &rport->timer,
                                bfa_fcs_rport_timeout, rport,
                                bfa_fcs_rport_del_timeout);
                break;

        case RPSM_EVENT_PLOGI_RETRY:
                rport->plogi_retries = 0;
                bfa_sm_set_state(rport, bfa_fcs_rport_sm_plogi_retry);
                bfa_timer_start(rport->fcs->bfa, &rport->timer,
                                bfa_fcs_rport_timeout, rport,
                                (FC_RA_TOV * 1000));
                break;

        case RPSM_EVENT_LOGO_IMP:
                rport->pid = 0;
                bfa_sm_set_state(rport, bfa_fcs_rport_sm_offline);
                bfa_fcxp_discard(rport->fcxp);
                bfa_timer_start(rport->fcs->bfa, &rport->timer,
                                bfa_fcs_rport_timeout, rport,
                                bfa_fcs_rport_del_timeout);
                break;

        case RPSM_EVENT_ADDRESS_CHANGE:
        case RPSM_EVENT_FAB_SCN:
                bfa_fcxp_discard(rport->fcxp);
                WARN_ON(!(bfa_fcport_get_topology(rport->port->fcs->bfa) !=
                                        BFA_PORT_TOPOLOGY_LOOP));
                bfa_sm_set_state(rport, bfa_fcs_rport_sm_nsdisc_sending);
                rport->ns_retries = 0;
                bfa_fcs_rport_send_nsdisc(rport, NULL);
                break;

        case RPSM_EVENT_PLOGI_RCVD:
                bfa_sm_set_state(rport, bfa_fcs_rport_sm_plogiacc_sending);
                bfa_fcxp_discard(rport->fcxp);
                bfa_fcs_rport_send_plogiacc(rport, NULL);
                break;

        case RPSM_EVENT_DELETE:
                bfa_sm_set_state(rport, bfa_fcs_rport_sm_uninit);
                bfa_fcxp_discard(rport->fcxp);
                bfa_fcs_rport_free(rport);
                break;

        case RPSM_EVENT_PLOGI_COMP:
                bfa_sm_set_state(rport, bfa_fcs_rport_sm_fc4_fcs_online);
                bfa_fcxp_discard(rport->fcxp);
                bfa_fcs_rport_fcs_online_action(rport);
                break;

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

/*
 * PLOGI is done. Await bfa_fcs_itnim to ascertain the scsi function
 */
static void
bfa_fcs_rport_sm_fc4_fcs_online(struct bfa_fcs_rport_s *rport,
                                enum rport_event event)
{
        bfa_trc(rport->fcs, rport->pwwn);
        bfa_trc(rport->fcs, rport->pid);
        bfa_trc(rport->fcs, event);

        switch (event) {
        case RPSM_EVENT_FC4_FCS_ONLINE:
                if (rport->scsi_function == BFA_RPORT_INITIATOR) {
                        if (!BFA_FCS_PID_IS_WKA(rport->pid))
                                bfa_fcs_rpf_rport_online(rport);
                        bfa_sm_set_state(rport, bfa_fcs_rport_sm_online);
                        break;
                }

                if (!rport->bfa_rport)
                        rport->bfa_rport =
                                bfa_rport_create(rport->fcs->bfa, rport);

                if (rport->bfa_rport) {
                        bfa_sm_set_state(rport, bfa_fcs_rport_sm_hal_online);
                        bfa_fcs_rport_hal_online(rport);
                } else {
                        bfa_sm_set_state(rport, bfa_fcs_rport_sm_fc4_logosend);
                        bfa_fcs_rport_fcs_offline_action(rport);
                }
                break;

        case RPSM_EVENT_PLOGI_RCVD:
                bfa_sm_set_state(rport, bfa_fcs_rport_sm_fc4_offline);
                rport->plogi_pending = BFA_TRUE;
                bfa_fcs_rport_fcs_offline_action(rport);
                break;

        case RPSM_EVENT_PLOGI_COMP:
        case RPSM_EVENT_LOGO_IMP:
        case RPSM_EVENT_ADDRESS_CHANGE:
        case RPSM_EVENT_FAB_SCN:
        case RPSM_EVENT_SCN_OFFLINE:
                bfa_sm_set_state(rport, bfa_fcs_rport_sm_fc4_offline);
                bfa_fcs_rport_fcs_offline_action(rport);
                break;

        case RPSM_EVENT_LOGO_RCVD:
        case RPSM_EVENT_PRLO_RCVD:
                bfa_sm_set_state(rport, bfa_fcs_rport_sm_fc4_logorcv);
                bfa_fcs_rport_fcs_offline_action(rport);
                break;

        case RPSM_EVENT_DELETE:
                bfa_sm_set_state(rport, bfa_fcs_rport_sm_fc4_logosend);
                bfa_fcs_rport_fcs_offline_action(rport);
                break;

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

/*
 *              PLOGI is complete. Awaiting BFA rport online callback. FC-4s
 *              are offline.
 */
static void
bfa_fcs_rport_sm_hal_online(struct bfa_fcs_rport_s *rport,
                        enum rport_event event)
{
        bfa_trc(rport->fcs, rport->pwwn);
        bfa_trc(rport->fcs, rport->pid);
        bfa_trc(rport->fcs, event);

        switch (event) {
        case RPSM_EVENT_HCB_ONLINE:
                bfa_sm_set_state(rport, bfa_fcs_rport_sm_online);
                bfa_fcs_rport_hal_online_action(rport);
                break;

        case RPSM_EVENT_PLOGI_COMP:
                break;

        case RPSM_EVENT_PRLO_RCVD:
        case RPSM_EVENT_LOGO_RCVD:
                bfa_sm_set_state(rport, bfa_fcs_rport_sm_fc4_logorcv);
                bfa_fcs_rport_fcs_offline_action(rport);
                break;

        case RPSM_EVENT_FAB_SCN:
        case RPSM_EVENT_LOGO_IMP:
        case RPSM_EVENT_ADDRESS_CHANGE:
        case RPSM_EVENT_SCN_OFFLINE:
                bfa_sm_set_state(rport, bfa_fcs_rport_sm_fc4_offline);
                bfa_fcs_rport_fcs_offline_action(rport);
                break;

        case RPSM_EVENT_PLOGI_RCVD:
                rport->plogi_pending = BFA_TRUE;
                bfa_sm_set_state(rport, bfa_fcs_rport_sm_fc4_offline);
                bfa_fcs_rport_fcs_offline_action(rport);
                break;

        case RPSM_EVENT_DELETE:
                bfa_sm_set_state(rport, bfa_fcs_rport_sm_fc4_logosend);
                bfa_fcs_rport_fcs_offline_action(rport);
                break;

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

/*
 *              Rport is ONLINE. FC-4s active.
 */
static void
bfa_fcs_rport_sm_online(struct bfa_fcs_rport_s *rport, enum rport_event event)
{
        bfa_trc(rport->fcs, rport->pwwn);
        bfa_trc(rport->fcs, rport->pid);
        bfa_trc(rport->fcs, event);

        switch (event) {
        case RPSM_EVENT_FAB_SCN:
                if (bfa_fcs_fabric_is_switched(rport->port->fabric)) {
                        bfa_sm_set_state(rport,
                                         bfa_fcs_rport_sm_nsquery_sending);
                        rport->ns_retries = 0;
                        bfa_fcs_rport_send_nsdisc(rport, NULL);
                } else {
                        bfa_sm_set_state(rport,
                                bfa_fcs_rport_sm_adisc_online_sending);
                        bfa_fcs_rport_send_adisc(rport, NULL);
                }
                break;

        case RPSM_EVENT_PLOGI_RCVD:
        case RPSM_EVENT_LOGO_IMP:
        case RPSM_EVENT_ADDRESS_CHANGE:
        case RPSM_EVENT_SCN_OFFLINE:
                bfa_sm_set_state(rport, bfa_fcs_rport_sm_fc4_offline);
                bfa_fcs_rport_hal_offline_action(rport);
                break;

        case RPSM_EVENT_DELETE:
                bfa_sm_set_state(rport, bfa_fcs_rport_sm_fc4_logosend);
                bfa_fcs_rport_hal_offline_action(rport);
                break;

        case RPSM_EVENT_LOGO_RCVD:
        case RPSM_EVENT_PRLO_RCVD:
                bfa_sm_set_state(rport, bfa_fcs_rport_sm_fc4_logorcv);
                bfa_fcs_rport_hal_offline_action(rport);
                break;

        case RPSM_EVENT_SCN_ONLINE:
        case RPSM_EVENT_PLOGI_COMP:
                break;

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

/*
 *              An SCN event is received in ONLINE state. NS query is being sent
 *              prior to ADISC authentication with rport. FC-4s are paused.
 */
static void
bfa_fcs_rport_sm_nsquery_sending(struct bfa_fcs_rport_s *rport,
         enum rport_event event)
{
        bfa_trc(rport->fcs, rport->pwwn);
        bfa_trc(rport->fcs, rport->pid);
        bfa_trc(rport->fcs, event);

        switch (event) {
        case RPSM_EVENT_FCXP_SENT:
                bfa_sm_set_state(rport, bfa_fcs_rport_sm_nsquery);
                break;

        case RPSM_EVENT_DELETE:
                bfa_sm_set_state(rport, bfa_fcs_rport_sm_fc4_logosend);
                bfa_fcxp_walloc_cancel(rport->fcs->bfa, &rport->fcxp_wqe);
                bfa_fcs_rport_hal_offline_action(rport);
                break;

        case RPSM_EVENT_FAB_SCN:
                /*
                 * ignore SCN, wait for response to query itself
                 */
                break;

        case RPSM_EVENT_LOGO_RCVD:
        case RPSM_EVENT_PRLO_RCVD:
                bfa_sm_set_state(rport, bfa_fcs_rport_sm_fc4_logorcv);
                bfa_fcxp_walloc_cancel(rport->fcs->bfa, &rport->fcxp_wqe);
                bfa_fcs_rport_hal_offline_action(rport);
                break;

        case RPSM_EVENT_LOGO_IMP:
        case RPSM_EVENT_PLOGI_RCVD:
        case RPSM_EVENT_ADDRESS_CHANGE:
        case RPSM_EVENT_PLOGI_COMP:
                bfa_sm_set_state(rport, bfa_fcs_rport_sm_fc4_offline);
                bfa_fcxp_walloc_cancel(rport->fcs->bfa, &rport->fcxp_wqe);
                bfa_fcs_rport_hal_offline_action(rport);
                break;

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

/*
 *      An SCN event is received in ONLINE state. NS query is sent to rport.
 *      FC-4s are paused.
 */
static void
bfa_fcs_rport_sm_nsquery(struct bfa_fcs_rport_s *rport, enum rport_event event)
{
        bfa_trc(rport->fcs, rport->pwwn);
        bfa_trc(rport->fcs, rport->pid);
        bfa_trc(rport->fcs, event);

        switch (event) {
        case RPSM_EVENT_ACCEPTED:
                bfa_sm_set_state(rport, bfa_fcs_rport_sm_adisc_online_sending);
                bfa_fcs_rport_send_adisc(rport, NULL);
                break;

        case RPSM_EVENT_FAILED:
                rport->ns_retries++;
                if (rport->ns_retries < BFA_FCS_RPORT_MAX_RETRIES) {
                        bfa_sm_set_state(rport,
                                         bfa_fcs_rport_sm_nsquery_sending);
                        bfa_fcs_rport_send_nsdisc(rport, NULL);
                } else {
                        bfa_sm_set_state(rport, bfa_fcs_rport_sm_fc4_offline);
                        bfa_fcs_rport_hal_offline_action(rport);
                }
                break;

        case RPSM_EVENT_DELETE:
                bfa_sm_set_state(rport, bfa_fcs_rport_sm_fc4_logosend);
                bfa_fcxp_discard(rport->fcxp);
                bfa_fcs_rport_hal_offline_action(rport);
                break;

        case RPSM_EVENT_FAB_SCN:
                break;

        case RPSM_EVENT_LOGO_RCVD:
        case RPSM_EVENT_PRLO_RCVD:
                bfa_sm_set_state(rport, bfa_fcs_rport_sm_fc4_logorcv);
                bfa_fcxp_discard(rport->fcxp);
                bfa_fcs_rport_hal_offline_action(rport);
                break;

        case RPSM_EVENT_PLOGI_COMP:
        case RPSM_EVENT_ADDRESS_CHANGE:
        case RPSM_EVENT_PLOGI_RCVD:
        case RPSM_EVENT_LOGO_IMP:
                bfa_sm_set_state(rport, bfa_fcs_rport_sm_fc4_offline);
                bfa_fcxp_discard(rport->fcxp);
                bfa_fcs_rport_hal_offline_action(rport);
                break;

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

/*
 *      An SCN event is received in ONLINE state. ADISC is being sent for
 *      authenticating with rport. FC-4s are paused.
 */
static void
bfa_fcs_rport_sm_adisc_online_sending(struct bfa_fcs_rport_s *rport,
         enum rport_event event)
{
        bfa_trc(rport->fcs, rport->pwwn);
        bfa_trc(rport->fcs, rport->pid);
        bfa_trc(rport->fcs, event);

        switch (event) {
        case RPSM_EVENT_FCXP_SENT:
                bfa_sm_set_state(rport, bfa_fcs_rport_sm_adisc_online);
                break;

        case RPSM_EVENT_DELETE:
                bfa_sm_set_state(rport, bfa_fcs_rport_sm_fc4_logosend);
                bfa_fcxp_walloc_cancel(rport->fcs->bfa, &rport->fcxp_wqe);
                bfa_fcs_rport_hal_offline_action(rport);
                break;

        case RPSM_EVENT_LOGO_IMP:
        case RPSM_EVENT_ADDRESS_CHANGE:
                bfa_sm_set_state(rport, bfa_fcs_rport_sm_fc4_offline);
                bfa_fcxp_walloc_cancel(rport->fcs->bfa, &rport->fcxp_wqe);
                bfa_fcs_rport_hal_offline_action(rport);
                break;

        case RPSM_EVENT_LOGO_RCVD:
        case RPSM_EVENT_PRLO_RCVD:
                bfa_sm_set_state(rport, bfa_fcs_rport_sm_fc4_logorcv);
                bfa_fcxp_walloc_cancel(rport->fcs->bfa, &rport->fcxp_wqe);
                bfa_fcs_rport_hal_offline_action(rport);
                break;

        case RPSM_EVENT_FAB_SCN:
                break;

        case RPSM_EVENT_PLOGI_RCVD:
                bfa_sm_set_state(rport, bfa_fcs_rport_sm_fc4_offline);
                bfa_fcxp_walloc_cancel(rport->fcs->bfa, &rport->fcxp_wqe);
                bfa_fcs_rport_hal_offline_action(rport);
                break;

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

/*
 *              An SCN event is received in ONLINE state. ADISC is to rport.
 *              FC-4s are paused.
 */
static void
bfa_fcs_rport_sm_adisc_online(struct bfa_fcs_rport_s *rport,
                                enum rport_event event)
{
        bfa_trc(rport->fcs, rport->pwwn);
        bfa_trc(rport->fcs, rport->pid);
        bfa_trc(rport->fcs, event);

        switch (event) {
        case RPSM_EVENT_ACCEPTED:
                bfa_sm_set_state(rport, bfa_fcs_rport_sm_online);
                break;

        case RPSM_EVENT_PLOGI_RCVD:
                /*
                 * Too complex to cleanup FC-4 & rport and then acc to PLOGI.
                 * At least go offline when a PLOGI is received.
                 */
                bfa_fcxp_discard(rport->fcxp);
                fallthrough;

        case RPSM_EVENT_FAILED:
        case RPSM_EVENT_ADDRESS_CHANGE:
                bfa_sm_set_state(rport, bfa_fcs_rport_sm_fc4_offline);
                bfa_fcs_rport_hal_offline_action(rport);
                break;

        case RPSM_EVENT_DELETE:
                bfa_sm_set_state(rport, bfa_fcs_rport_sm_fc4_logosend);
                bfa_fcxp_discard(rport->fcxp);
                bfa_fcs_rport_hal_offline_action(rport);
                break;

        case RPSM_EVENT_FAB_SCN:
                /*
                 * already processing RSCN
                 */
                break;

        case RPSM_EVENT_LOGO_IMP:
                bfa_sm_set_state(rport, bfa_fcs_rport_sm_fc4_offline);
                bfa_fcxp_discard(rport->fcxp);
                bfa_fcs_rport_hal_offline_action(rport);
                break;

        case RPSM_EVENT_LOGO_RCVD:
        case RPSM_EVENT_PRLO_RCVD:
                bfa_sm_set_state(rport, bfa_fcs_rport_sm_fc4_logorcv);
                bfa_fcxp_discard(rport->fcxp);
                bfa_fcs_rport_hal_offline_action(rport);
                break;

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

/*
 * ADISC is being sent for authenticating with rport
 * Already did offline actions.
 */
static void
bfa_fcs_rport_sm_adisc_offline_sending(struct bfa_fcs_rport_s *rport,
        enum rport_event event)
{
        bfa_trc(rport->fcs, rport->pwwn);
        bfa_trc(rport->fcs, rport->pid);
        bfa_trc(rport->fcs, event);

        switch (event) {
        case RPSM_EVENT_FCXP_SENT:
                bfa_sm_set_state(rport, bfa_fcs_rport_sm_adisc_offline);
                break;

        case RPSM_EVENT_DELETE:
        case RPSM_EVENT_SCN_OFFLINE:
        case RPSM_EVENT_LOGO_IMP:
        case RPSM_EVENT_LOGO_RCVD:
        case RPSM_EVENT_PRLO_RCVD:
                bfa_sm_set_state(rport, bfa_fcs_rport_sm_offline);
                bfa_fcxp_walloc_cancel(rport->fcs->bfa,
                        &rport->fcxp_wqe);
                bfa_timer_start(rport->fcs->bfa, &rport->timer,
                        bfa_fcs_rport_timeout, rport,
                        bfa_fcs_rport_del_timeout);
                break;

        case RPSM_EVENT_PLOGI_RCVD:
                bfa_sm_set_state(rport, bfa_fcs_rport_sm_plogiacc_sending);
                bfa_fcxp_walloc_cancel(rport->fcs->bfa, &rport->fcxp_wqe);
                bfa_fcs_rport_send_plogiacc(rport, NULL);
                break;

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

/*
 * ADISC to rport
 * Already did offline actions
 */
static void
bfa_fcs_rport_sm_adisc_offline(struct bfa_fcs_rport_s *rport,
                        enum rport_event event)
{
        bfa_trc(rport->fcs, rport->pwwn);
        bfa_trc(rport->fcs, rport->pid);
        bfa_trc(rport->fcs, event);

        switch (event) {
        case RPSM_EVENT_ACCEPTED:
                bfa_sm_set_state(rport, bfa_fcs_rport_sm_hal_online);
                bfa_fcs_rport_hal_online(rport);
                break;

        case RPSM_EVENT_PLOGI_RCVD:
                bfa_sm_set_state(rport, bfa_fcs_rport_sm_plogiacc_sending);
                bfa_fcxp_discard(rport->fcxp);
                bfa_fcs_rport_send_plogiacc(rport, NULL);
                break;

        case RPSM_EVENT_FAILED:
                bfa_sm_set_state(rport, bfa_fcs_rport_sm_offline);
                bfa_timer_start(rport->fcs->bfa, &rport->timer,
                        bfa_fcs_rport_timeout, rport,
                        bfa_fcs_rport_del_timeout);
                break;

        case RPSM_EVENT_DELETE:
        case RPSM_EVENT_SCN_OFFLINE:
        case RPSM_EVENT_LOGO_IMP:
        case RPSM_EVENT_LOGO_RCVD:
        case RPSM_EVENT_PRLO_RCVD:
                bfa_sm_set_state(rport, bfa_fcs_rport_sm_offline);
                bfa_fcxp_discard(rport->fcxp);
                bfa_timer_start(rport->fcs->bfa, &rport->timer,
                        bfa_fcs_rport_timeout, rport,
                        bfa_fcs_rport_del_timeout);
                break;

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

/*
 * Rport has sent LOGO. Awaiting FC-4 offline completion callback.
 */
static void
bfa_fcs_rport_sm_fc4_logorcv(struct bfa_fcs_rport_s *rport,
                        enum rport_event event)
{
        bfa_trc(rport->fcs, rport->pwwn);
        bfa_trc(rport->fcs, rport->pid);
        bfa_trc(rport->fcs, event);

        switch (event) {
        case RPSM_EVENT_FC4_OFFLINE:
                bfa_sm_set_state(rport, bfa_fcs_rport_sm_hcb_logorcv);
                bfa_fcs_rport_hal_offline(rport);
                break;

        case RPSM_EVENT_DELETE:
                if (rport->pid && (rport->prlo == BFA_TRUE))
                        bfa_fcs_rport_send_prlo_acc(rport);
                if (rport->pid && (rport->prlo == BFA_FALSE))
                        bfa_fcs_rport_send_logo_acc(rport);

                bfa_sm_set_state(rport, bfa_fcs_rport_sm_fc4_off_delete);
                break;

        case RPSM_EVENT_SCN_ONLINE:
        case RPSM_EVENT_SCN_OFFLINE:
        case RPSM_EVENT_HCB_ONLINE:
        case RPSM_EVENT_LOGO_RCVD:
        case RPSM_EVENT_PRLO_RCVD:
        case RPSM_EVENT_ADDRESS_CHANGE:
                break;

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

/*
 *              LOGO needs to be sent to rport. Awaiting FC-4 offline completion
 *              callback.
 */
static void
bfa_fcs_rport_sm_fc4_logosend(struct bfa_fcs_rport_s *rport,
         enum rport_event event)
{
        bfa_trc(rport->fcs, rport->pwwn);
        bfa_trc(rport->fcs, rport->pid);
        bfa_trc(rport->fcs, event);

        switch (event) {
        case RPSM_EVENT_FC4_OFFLINE:
                bfa_sm_set_state(rport, bfa_fcs_rport_sm_hcb_logosend);
                bfa_fcs_rport_hal_offline(rport);
                break;

        case RPSM_EVENT_LOGO_RCVD:
                bfa_fcs_rport_send_logo_acc(rport);
                fallthrough;
        case RPSM_EVENT_PRLO_RCVD:
                if (rport->prlo == BFA_TRUE)
                        bfa_fcs_rport_send_prlo_acc(rport);
                bfa_sm_set_state(rport, bfa_fcs_rport_sm_fc4_off_delete);
                break;

        case RPSM_EVENT_HCB_ONLINE:
        case RPSM_EVENT_DELETE:
                /* Rport is being deleted */
                break;

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

/*
 *      Rport is going offline. Awaiting FC-4 offline completion callback.
 */
static void
bfa_fcs_rport_sm_fc4_offline(struct bfa_fcs_rport_s *rport,
                        enum rport_event event)
{
        bfa_trc(rport->fcs, rport->pwwn);
        bfa_trc(rport->fcs, rport->pid);
        bfa_trc(rport->fcs, event);

        switch (event) {
        case RPSM_EVENT_FC4_OFFLINE:
                bfa_sm_set_state(rport, bfa_fcs_rport_sm_hcb_offline);
                bfa_fcs_rport_hal_offline(rport);
                break;

        case RPSM_EVENT_SCN_ONLINE:
                break;
        case RPSM_EVENT_LOGO_RCVD:
                /*
                 * Rport is going offline. Just ack the logo
                 */
                bfa_fcs_rport_send_logo_acc(rport);
                break;

        case RPSM_EVENT_PRLO_RCVD:
                bfa_fcs_rport_send_prlo_acc(rport);
                break;

        case RPSM_EVENT_SCN_OFFLINE:
        case RPSM_EVENT_HCB_ONLINE:
        case RPSM_EVENT_FAB_SCN:
        case RPSM_EVENT_LOGO_IMP:
        case RPSM_EVENT_ADDRESS_CHANGE:
                /*
                 * rport is already going offline.
                 * SCN - ignore and wait till transitioning to offline state
                 */
                break;

        case RPSM_EVENT_DELETE:
                bfa_sm_set_state(rport, bfa_fcs_rport_sm_fc4_logosend);
                break;

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

/*
 *              Rport is offline. FC-4s are offline. Awaiting BFA rport offline
 *              callback.
 */
static void
bfa_fcs_rport_sm_hcb_offline(struct bfa_fcs_rport_s *rport,
                                enum rport_event event)
{
        bfa_trc(rport->fcs, rport->pwwn);
        bfa_trc(rport->fcs, rport->pid);
        bfa_trc(rport->fcs, event);

        switch (event) {
        case RPSM_EVENT_HCB_OFFLINE:
                if (bfa_fcs_lport_is_online(rport->port) &&
                    (rport->plogi_pending)) {
                        rport->plogi_pending = BFA_FALSE;
                        bfa_sm_set_state(rport,
                                bfa_fcs_rport_sm_plogiacc_sending);
                        bfa_fcs_rport_send_plogiacc(rport, NULL);
                        break;
                }
                fallthrough;

        case RPSM_EVENT_ADDRESS_CHANGE:
                if (!bfa_fcs_lport_is_online(rport->port)) {
                        rport->pid = 0;
                        bfa_sm_set_state(rport, bfa_fcs_rport_sm_offline);
                        bfa_timer_start(rport->fcs->bfa, &rport->timer,
                                        bfa_fcs_rport_timeout, rport,
                                        bfa_fcs_rport_del_timeout);
                        break;
                }
                if (bfa_fcs_fabric_is_switched(rport->port->fabric)) {
                        bfa_sm_set_state(rport,
                                bfa_fcs_rport_sm_nsdisc_sending);
                        rport->ns_retries = 0;
                        bfa_fcs_rport_send_nsdisc(rport, NULL);
                } else if (bfa_fcport_get_topology(rport->port->fcs->bfa) ==
                                        BFA_PORT_TOPOLOGY_LOOP) {
                        if (rport->scn_online) {
                                bfa_sm_set_state(rport,
                                        bfa_fcs_rport_sm_adisc_offline_sending);
                                bfa_fcs_rport_send_adisc(rport, NULL);
                        } else {
                                bfa_sm_set_state(rport,
                                        bfa_fcs_rport_sm_offline);
                                bfa_timer_start(rport->fcs->bfa, &rport->timer,
                                        bfa_fcs_rport_timeout, rport,
                                        bfa_fcs_rport_del_timeout);
                        }
                } else {
                        bfa_sm_set_state(rport, bfa_fcs_rport_sm_plogi_sending);
                        rport->plogi_retries = 0;
                        bfa_fcs_rport_send_plogi(rport, NULL);
                }
                break;

        case RPSM_EVENT_DELETE:
                bfa_sm_set_state(rport, bfa_fcs_rport_sm_uninit);
                bfa_fcs_rport_free(rport);
                break;

        case RPSM_EVENT_SCN_ONLINE:
        case RPSM_EVENT_SCN_OFFLINE:
        case RPSM_EVENT_FAB_SCN:
        case RPSM_EVENT_LOGO_RCVD:
        case RPSM_EVENT_PRLO_RCVD:
        case RPSM_EVENT_PLOGI_RCVD:
        case RPSM_EVENT_LOGO_IMP:
                /*
                 * Ignore, already offline.
                 */
                break;

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

/*
 *              Rport is offline. FC-4s are offline. Awaiting BFA rport offline
 *              callback to send LOGO accept.
 */
static void
bfa_fcs_rport_sm_hcb_logorcv(struct bfa_fcs_rport_s *rport,
                        enum rport_event event)
{
        bfa_trc(rport->fcs, rport->pwwn);
        bfa_trc(rport->fcs, rport->pid);
        bfa_trc(rport->fcs, event);

        switch (event) {
        case RPSM_EVENT_HCB_OFFLINE:
        case RPSM_EVENT_ADDRESS_CHANGE:
                if (rport->pid && (rport->prlo == BFA_TRUE))
                        bfa_fcs_rport_send_prlo_acc(rport);
                if (rport->pid && (rport->prlo == BFA_FALSE))
                        bfa_fcs_rport_send_logo_acc(rport);
                /*
                 * If the lport is online and if the rport is not a well
                 * known address port,
                 * we try to re-discover the r-port.
                 */
                if (bfa_fcs_lport_is_online(rport->port) &&
                        (!BFA_FCS_PID_IS_WKA(rport->pid))) {
                        if (bfa_fcs_fabric_is_switched(rport->port->fabric)) {
                                bfa_sm_set_state(rport,
                                        bfa_fcs_rport_sm_nsdisc_sending);
                                rport->ns_retries = 0;
                                bfa_fcs_rport_send_nsdisc(rport, NULL);
                        } else {
                                /* For N2N  Direct Attach, try to re-login */
                                bfa_sm_set_state(rport,
                                        bfa_fcs_rport_sm_plogi_sending);
                                rport->plogi_retries = 0;
                                bfa_fcs_rport_send_plogi(rport, NULL);
                        }
                } else {
                        /*
                         * if it is not a well known address, reset the
                         * pid to 0.
                         */
                        if (!BFA_FCS_PID_IS_WKA(rport->pid))
                                rport->pid = 0;
                        bfa_sm_set_state(rport, bfa_fcs_rport_sm_offline);
                        bfa_timer_start(rport->fcs->bfa, &rport->timer,
                                        bfa_fcs_rport_timeout, rport,
                                        bfa_fcs_rport_del_timeout);
                }
                break;

        case RPSM_EVENT_DELETE:
                bfa_sm_set_state(rport, bfa_fcs_rport_sm_delete_pending);
                if (rport->pid && (rport->prlo == BFA_TRUE))
                        bfa_fcs_rport_send_prlo_acc(rport);
                if (rport->pid && (rport->prlo == BFA_FALSE))
                        bfa_fcs_rport_send_logo_acc(rport);
                break;

        case RPSM_EVENT_LOGO_IMP:
                bfa_sm_set_state(rport, bfa_fcs_rport_sm_hcb_offline);
                break;

        case RPSM_EVENT_SCN_ONLINE:
        case RPSM_EVENT_SCN_OFFLINE:
        case RPSM_EVENT_LOGO_RCVD:
        case RPSM_EVENT_PRLO_RCVD:
                /*
                 * Ignore - already processing a LOGO.
                 */
                break;

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

/*
 *              Rport is being deleted. FC-4s are offline.
 *  Awaiting BFA rport offline
 *              callback to send LOGO.
 */
static void
bfa_fcs_rport_sm_hcb_logosend(struct bfa_fcs_rport_s *rport,
                 enum rport_event event)
{
        bfa_trc(rport->fcs, rport->pwwn);
        bfa_trc(rport->fcs, rport->pid);
        bfa_trc(rport->fcs, event);

        switch (event) {
        case RPSM_EVENT_HCB_OFFLINE:
                bfa_sm_set_state(rport, bfa_fcs_rport_sm_logo_sending);
                bfa_fcs_rport_send_logo(rport, NULL);
                break;

        case RPSM_EVENT_LOGO_RCVD:
                bfa_fcs_rport_send_logo_acc(rport);
                fallthrough;
        case RPSM_EVENT_PRLO_RCVD:
                if (rport->prlo == BFA_TRUE)
                        bfa_fcs_rport_send_prlo_acc(rport);

                bfa_sm_set_state(rport, bfa_fcs_rport_sm_delete_pending);
                break;

        case RPSM_EVENT_SCN_ONLINE:
        case RPSM_EVENT_SCN_OFFLINE:
        case RPSM_EVENT_ADDRESS_CHANGE:
                break;

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

/*
 *              Rport is being deleted. FC-4s are offline. LOGO is being sent.
 */
static void
bfa_fcs_rport_sm_logo_sending(struct bfa_fcs_rport_s *rport,
         enum rport_event event)
{
        bfa_trc(rport->fcs, rport->pwwn);
        bfa_trc(rport->fcs, rport->pid);
        bfa_trc(rport->fcs, event);

        switch (event) {
        case RPSM_EVENT_FCXP_SENT:
                /* Once LOGO is sent, we donot wait for the response */
                bfa_sm_set_state(rport, bfa_fcs_rport_sm_uninit);
                bfa_fcs_rport_free(rport);
                break;

        case RPSM_EVENT_SCN_ONLINE:
        case RPSM_EVENT_SCN_OFFLINE:
        case RPSM_EVENT_FAB_SCN:
        case RPSM_EVENT_ADDRESS_CHANGE:
                break;

        case RPSM_EVENT_LOGO_RCVD:
                bfa_fcs_rport_send_logo_acc(rport);
                fallthrough;
        case RPSM_EVENT_PRLO_RCVD:
                if (rport->prlo == BFA_TRUE)
                        bfa_fcs_rport_send_prlo_acc(rport);

                bfa_sm_set_state(rport, bfa_fcs_rport_sm_uninit);
                bfa_fcxp_walloc_cancel(rport->fcs->bfa, &rport->fcxp_wqe);
                bfa_fcs_rport_free(rport);
                break;

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

/*
 *              Rport is offline. FC-4s are offline. BFA rport is offline.
 *              Timer active to delete stale rport.
 */
static void
bfa_fcs_rport_sm_offline(struct bfa_fcs_rport_s *rport, enum rport_event event)
{
        bfa_trc(rport->fcs, rport->pwwn);
        bfa_trc(rport->fcs, rport->pid);
        bfa_trc(rport->fcs, event);

        switch (event) {
        case RPSM_EVENT_TIMEOUT:
                bfa_sm_set_state(rport, bfa_fcs_rport_sm_uninit);
                bfa_fcs_rport_free(rport);
                break;

        case RPSM_EVENT_FAB_SCN:
        case RPSM_EVENT_ADDRESS_CHANGE:
                bfa_timer_stop(&rport->timer);
                WARN_ON(!(bfa_fcport_get_topology(rport->port->fcs->bfa) !=
                                        BFA_PORT_TOPOLOGY_LOOP));
                bfa_sm_set_state(rport, bfa_fcs_rport_sm_nsdisc_sending);
                rport->ns_retries = 0;
                bfa_fcs_rport_send_nsdisc(rport, NULL);
                break;

        case RPSM_EVENT_DELETE:
                bfa_sm_set_state(rport, bfa_fcs_rport_sm_uninit);
                bfa_timer_stop(&rport->timer);
                bfa_fcs_rport_free(rport);
                break;

        case RPSM_EVENT_PLOGI_RCVD:
                bfa_sm_set_state(rport, bfa_fcs_rport_sm_plogiacc_sending);
                bfa_timer_stop(&rport->timer);
                bfa_fcs_rport_send_plogiacc(rport, NULL);
                break;

        case RPSM_EVENT_LOGO_RCVD:
        case RPSM_EVENT_PRLO_RCVD:
        case RPSM_EVENT_LOGO_IMP:
        case RPSM_EVENT_SCN_OFFLINE:
                break;

        case RPSM_EVENT_PLOGI_COMP:
                bfa_sm_set_state(rport, bfa_fcs_rport_sm_fc4_fcs_online);
                bfa_timer_stop(&rport->timer);
                bfa_fcs_rport_fcs_online_action(rport);
                break;

        case RPSM_EVENT_SCN_ONLINE:
                bfa_timer_stop(&rport->timer);
                bfa_sm_set_state(rport, bfa_fcs_rport_sm_plogi_sending);
                bfa_fcs_rport_send_plogi(rport, NULL);
                break;

        case RPSM_EVENT_PLOGI_SEND:
                bfa_timer_stop(&rport->timer);
                bfa_sm_set_state(rport, bfa_fcs_rport_sm_plogi_sending);
                rport->plogi_retries = 0;
                bfa_fcs_rport_send_plogi(rport, NULL);
                break;

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

/*
 *      Rport address has changed. Nameserver discovery request is being sent.
 */
static void
bfa_fcs_rport_sm_nsdisc_sending(struct bfa_fcs_rport_s *rport,
         enum rport_event event)
{
        bfa_trc(rport->fcs, rport->pwwn);
        bfa_trc(rport->fcs, rport->pid);
        bfa_trc(rport->fcs, event);

        switch (event) {
        case RPSM_EVENT_FCXP_SENT:
                bfa_sm_set_state(rport, bfa_fcs_rport_sm_nsdisc_sent);
                break;

        case RPSM_EVENT_DELETE:
                bfa_sm_set_state(rport, bfa_fcs_rport_sm_uninit);
                bfa_fcxp_walloc_cancel(rport->fcs->bfa, &rport->fcxp_wqe);
                bfa_fcs_rport_free(rport);
                break;

        case RPSM_EVENT_PLOGI_RCVD:
                bfa_sm_set_state(rport, bfa_fcs_rport_sm_plogiacc_sending);
                bfa_fcxp_walloc_cancel(rport->fcs->bfa, &rport->fcxp_wqe);
                bfa_fcs_rport_send_plogiacc(rport, NULL);
                break;

        case RPSM_EVENT_FAB_SCN:
        case RPSM_EVENT_LOGO_RCVD:
        case RPSM_EVENT_PRLO_RCVD:
        case RPSM_EVENT_PLOGI_SEND:
                break;

        case RPSM_EVENT_ADDRESS_CHANGE:
                rport->ns_retries = 0; /* reset the retry count */
                break;

        case RPSM_EVENT_LOGO_IMP:
                bfa_sm_set_state(rport, bfa_fcs_rport_sm_offline);
                bfa_fcxp_walloc_cancel(rport->fcs->bfa, &rport->fcxp_wqe);
                bfa_timer_start(rport->fcs->bfa, &rport->timer,
                                bfa_fcs_rport_timeout, rport,
                                bfa_fcs_rport_del_timeout);
                break;

        case RPSM_EVENT_PLOGI_COMP:
                bfa_sm_set_state(rport, bfa_fcs_rport_sm_fc4_fcs_online);
                bfa_fcxp_walloc_cancel(rport->fcs->bfa, &rport->fcxp_wqe);
                bfa_fcs_rport_fcs_online_action(rport);
                break;

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

/*
 *              Nameserver discovery failed. Waiting for timeout to retry.
 */
static void
bfa_fcs_rport_sm_nsdisc_retry(struct bfa_fcs_rport_s *rport,
         enum rport_event event)
{
        bfa_trc(rport->fcs, rport->pwwn);
        bfa_trc(rport->fcs, rport->pid);
        bfa_trc(rport->fcs, event);

        switch (event) {
        case RPSM_EVENT_TIMEOUT:
                bfa_sm_set_state(rport, bfa_fcs_rport_sm_nsdisc_sending);
                bfa_fcs_rport_send_nsdisc(rport, NULL);
                break;

        case RPSM_EVENT_FAB_SCN:
        case RPSM_EVENT_ADDRESS_CHANGE:
                bfa_sm_set_state(rport, bfa_fcs_rport_sm_nsdisc_sending);
                bfa_timer_stop(&rport->timer);
                rport->ns_retries = 0;
                bfa_fcs_rport_send_nsdisc(rport, NULL);
                break;

        case RPSM_EVENT_DELETE:
                bfa_sm_set_state(rport, bfa_fcs_rport_sm_uninit);
                bfa_timer_stop(&rport->timer);
                bfa_fcs_rport_free(rport);
                break;

        case RPSM_EVENT_PLOGI_RCVD:
                bfa_sm_set_state(rport, bfa_fcs_rport_sm_plogiacc_sending);
                bfa_timer_stop(&rport->timer);
                bfa_fcs_rport_send_plogiacc(rport, NULL);
                break;

        case RPSM_EVENT_LOGO_IMP:
                rport->pid = 0;
                bfa_sm_set_state(rport, bfa_fcs_rport_sm_offline);
                bfa_timer_stop(&rport->timer);
                bfa_timer_start(rport->fcs->bfa, &rport->timer,
                                bfa_fcs_rport_timeout, rport,
                                bfa_fcs_rport_del_timeout);
                break;

        case RPSM_EVENT_LOGO_RCVD:
                bfa_fcs_rport_send_logo_acc(rport);
                break;
        case RPSM_EVENT_PRLO_RCVD:
                bfa_fcs_rport_send_prlo_acc(rport);
                break;

        case RPSM_EVENT_PLOGI_COMP:
                bfa_sm_set_state(rport, bfa_fcs_rport_sm_fc4_fcs_online);
                bfa_timer_stop(&rport->timer);
                bfa_fcs_rport_fcs_online_action(rport);
                break;

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

/*
 *              Rport address has changed. Nameserver discovery request is sent.
 */
static void
bfa_fcs_rport_sm_nsdisc_sent(struct bfa_fcs_rport_s *rport,
                        enum rport_event event)
{
        bfa_trc(rport->fcs, rport->pwwn);
        bfa_trc(rport->fcs, rport->pid);
        bfa_trc(rport->fcs, event);

        switch (event) {
        case RPSM_EVENT_ACCEPTED:
        case RPSM_EVENT_ADDRESS_CHANGE:
                if (rport->pid) {
                        bfa_sm_set_state(rport, bfa_fcs_rport_sm_plogi_sending);
                        bfa_fcs_rport_send_plogi(rport, NULL);
                } else {
                        bfa_sm_set_state(rport,
                                 bfa_fcs_rport_sm_nsdisc_sending);
                        rport->ns_retries = 0;
                        bfa_fcs_rport_send_nsdisc(rport, NULL);
                }
                break;

        case RPSM_EVENT_FAILED:
                rport->ns_retries++;
                if (rport->ns_retries < BFA_FCS_RPORT_MAX_RETRIES) {
                        bfa_sm_set_state(rport,
                                 bfa_fcs_rport_sm_nsdisc_sending);
                        bfa_fcs_rport_send_nsdisc(rport, NULL);
                } else {
                        rport->old_pid = rport->pid;
                        rport->pid = 0;
                        bfa_sm_set_state(rport, bfa_fcs_rport_sm_offline);
                        bfa_timer_start(rport->fcs->bfa, &rport->timer,
                                        bfa_fcs_rport_timeout, rport,
                                        bfa_fcs_rport_del_timeout);
                }
                break;

        case RPSM_EVENT_DELETE:
                bfa_sm_set_state(rport, bfa_fcs_rport_sm_uninit);
                bfa_fcxp_discard(rport->fcxp);
                bfa_fcs_rport_free(rport);
                break;

        case RPSM_EVENT_PLOGI_RCVD:
                bfa_sm_set_state(rport, bfa_fcs_rport_sm_plogiacc_sending);
                bfa_fcxp_discard(rport->fcxp);
                bfa_fcs_rport_send_plogiacc(rport, NULL);
                break;

        case RPSM_EVENT_LOGO_IMP:
                rport->pid = 0;
                bfa_sm_set_state(rport, bfa_fcs_rport_sm_offline);
                bfa_fcxp_discard(rport->fcxp);
                bfa_timer_start(rport->fcs->bfa, &rport->timer,
                                bfa_fcs_rport_timeout, rport,
                                bfa_fcs_rport_del_timeout);
                break;


        case RPSM_EVENT_PRLO_RCVD:
                bfa_fcs_rport_send_prlo_acc(rport);
                break;
        case RPSM_EVENT_FAB_SCN:
                /*
                 * ignore, wait for NS query response
                 */
                break;

        case RPSM_EVENT_LOGO_RCVD:
                /*
                 * Not logged-in yet. Accept LOGO.
                 */
                bfa_fcs_rport_send_logo_acc(rport);
                break;

        case RPSM_EVENT_PLOGI_COMP:
                bfa_sm_set_state(rport, bfa_fcs_rport_sm_fc4_fcs_online);
                bfa_fcxp_discard(rport->fcxp);
                bfa_fcs_rport_fcs_online_action(rport);
                break;

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

/*
 * Rport needs to be deleted
 * waiting for ITNIM clean up to finish
 */
static void
bfa_fcs_rport_sm_fc4_off_delete(struct bfa_fcs_rport_s *rport,
                                enum rport_event event)
{
        bfa_trc(rport->fcs, rport->pwwn);
        bfa_trc(rport->fcs, rport->pid);
        bfa_trc(rport->fcs, event);

        switch (event) {
        case RPSM_EVENT_FC4_OFFLINE:
                bfa_sm_set_state(rport, bfa_fcs_rport_sm_delete_pending);
                bfa_fcs_rport_hal_offline(rport);
                break;

        case RPSM_EVENT_DELETE:
        case RPSM_EVENT_PLOGI_RCVD:
                /* Ignore these events */
                break;

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

/*
 * RPort needs to be deleted
 * waiting for BFA/FW to finish current processing
 */
static void
bfa_fcs_rport_sm_delete_pending(struct bfa_fcs_rport_s *rport,
                                enum rport_event event)
{
        bfa_trc(rport->fcs, rport->pwwn);
        bfa_trc(rport->fcs, rport->pid);
        bfa_trc(rport->fcs, event);

        switch (event) {
        case RPSM_EVENT_HCB_OFFLINE:
                bfa_sm_set_state(rport, bfa_fcs_rport_sm_uninit);
                bfa_fcs_rport_free(rport);
                break;

        case RPSM_EVENT_DELETE:
        case RPSM_EVENT_LOGO_IMP:
        case RPSM_EVENT_PLOGI_RCVD:
                /* Ignore these events */
                break;

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

/*
 *  fcs_rport_private FCS RPORT provate functions
 */

static void
bfa_fcs_rport_send_plogi(void *rport_cbarg, struct bfa_fcxp_s *fcxp_alloced)
{
        struct bfa_fcs_rport_s *rport = rport_cbarg;
        struct bfa_fcs_lport_s *port = rport->port;
        struct fchs_s   fchs;
        int             len;
        struct bfa_fcxp_s *fcxp;

        bfa_trc(rport->fcs, rport->pwwn);

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

        len = fc_plogi_build(&fchs, bfa_fcxp_get_reqbuf(fcxp), rport->pid,
                                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_rport_plogi_response,
                        (void *)rport, FC_MAX_PDUSZ, FC_ELS_TOV);

        rport->stats.plogis++;
        bfa_sm_send_event(rport, RPSM_EVENT_FCXP_SENT);
}

static void
bfa_fcs_rport_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_rport_s *rport = (struct bfa_fcs_rport_s *) cbarg;
        struct fc_logi_s        *plogi_rsp;
        struct fc_ls_rjt_s      *ls_rjt;
        struct bfa_fcs_rport_s *twin;
        struct list_head        *qe;

        bfa_trc(rport->fcs, rport->pwwn);

        /*
         * Sanity Checks
         */
        if (req_status != BFA_STATUS_OK) {
                bfa_trc(rport->fcs, req_status);
                rport->stats.plogi_failed++;
                bfa_sm_send_event(rport, RPSM_EVENT_FAILED);
                return;
        }

        plogi_rsp = (struct fc_logi_s *) BFA_FCXP_RSP_PLD(fcxp);

        /*
         * Check for failure first.
         */
        if (plogi_rsp->els_cmd.els_code != FC_ELS_ACC) {
                ls_rjt = (struct fc_ls_rjt_s *) BFA_FCXP_RSP_PLD(fcxp);

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

                if ((ls_rjt->reason_code == FC_LS_RJT_RSN_UNABLE_TO_PERF_CMD) &&
                 (ls_rjt->reason_code_expl == FC_LS_RJT_EXP_INSUFF_RES)) {
                        rport->stats.rjt_insuff_res++;
                        bfa_sm_send_event(rport, RPSM_EVENT_PLOGI_RETRY);
                        return;
                }

                rport->stats.plogi_rejects++;
                bfa_sm_send_event(rport, RPSM_EVENT_FAILED);
                return;
        }

        /*
         * PLOGI is complete. Make sure this device is not one of the known
         * device with a new FC port address.
         */
        list_for_each(qe, &rport->port->rport_q) {
                twin = (struct bfa_fcs_rport_s *) qe;
                if (twin == rport)
                        continue;
                if (!rport->pwwn && (plogi_rsp->port_name == twin->pwwn)) {
                        bfa_trc(rport->fcs, twin->pid);
                        bfa_trc(rport->fcs, rport->pid);

                        /* Update plogi stats in twin */
                        twin->stats.plogis  += rport->stats.plogis;
                        twin->stats.plogi_rejects  +=
                                 rport->stats.plogi_rejects;
                        twin->stats.plogi_timeouts  +=
                                 rport->stats.plogi_timeouts;
                        twin->stats.plogi_failed +=
                                 rport->stats.plogi_failed;
                        twin->stats.plogi_rcvd    += rport->stats.plogi_rcvd;
                        twin->stats.plogi_accs++;

                        bfa_sm_send_event(rport, RPSM_EVENT_DELETE);

                        bfa_fcs_rport_update(twin, plogi_rsp);
                        twin->pid = rsp_fchs->s_id;
                        bfa_sm_send_event(twin, RPSM_EVENT_PLOGI_COMP);
                        return;
                }
        }

        /*
         * Normal login path -- no evil twins.
         */
        rport->stats.plogi_accs++;
        bfa_fcs_rport_update(rport, plogi_rsp);
        bfa_sm_send_event(rport, RPSM_EVENT_ACCEPTED);
}

static void
bfa_fcs_rport_send_plogiacc(void *rport_cbarg, struct bfa_fcxp_s *fcxp_alloced)
{
        struct bfa_fcs_rport_s *rport = rport_cbarg;
        struct bfa_fcs_lport_s *port = rport->port;
        struct fchs_s           fchs;
        int             len;
        struct bfa_fcxp_s *fcxp;

        bfa_trc(rport->fcs, rport->pwwn);
        bfa_trc(rport->fcs, rport->reply_oxid);

        fcxp = fcxp_alloced ? fcxp_alloced :
               bfa_fcs_fcxp_alloc(port->fcs, BFA_FALSE);
        if (!fcxp) {
                bfa_fcs_fcxp_alloc_wait(port->fcs->bfa, &rport->fcxp_wqe,
                                bfa_fcs_rport_send_plogiacc, rport, BFA_FALSE);
                return;
        }
        rport->fcxp = fcxp;

        len = fc_plogi_acc_build(&fchs, bfa_fcxp_get_reqbuf(fcxp),
                                 rport->pid, bfa_fcs_lport_get_fcid(port),
                                 rport->reply_oxid, 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, NULL, NULL, FC_MAX_PDUSZ, 0);

        bfa_sm_send_event(rport, RPSM_EVENT_FCXP_SENT);
}

static void
bfa_fcs_rport_send_adisc(void *rport_cbarg, struct bfa_fcxp_s *fcxp_alloced)
{
        struct bfa_fcs_rport_s *rport = rport_cbarg;
        struct bfa_fcs_lport_s *port = rport->port;
        struct fchs_s           fchs;
        int             len;
        struct bfa_fcxp_s *fcxp;

        bfa_trc(rport->fcs, rport->pwwn);

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

        len = fc_adisc_build(&fchs, bfa_fcxp_get_reqbuf(fcxp), rport->pid,
                                bfa_fcs_lport_get_fcid(port), 0,
                                port->port_cfg.pwwn, port->port_cfg.nwwn);

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

        rport->stats.adisc_sent++;
        bfa_sm_send_event(rport, RPSM_EVENT_FCXP_SENT);
}

static void
bfa_fcs_rport_adisc_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_rport_s *rport = (struct bfa_fcs_rport_s *) cbarg;
        void            *pld = bfa_fcxp_get_rspbuf(fcxp);
        struct fc_ls_rjt_s      *ls_rjt;

        if (req_status != BFA_STATUS_OK) {
                bfa_trc(rport->fcs, req_status);
                rport->stats.adisc_failed++;
                bfa_sm_send_event(rport, RPSM_EVENT_FAILED);
                return;
        }

        if (fc_adisc_rsp_parse((struct fc_adisc_s *)pld, rsp_len, rport->pwwn,
                                rport->nwwn)  == FC_PARSE_OK) {
                rport->stats.adisc_accs++;
                bfa_sm_send_event(rport, RPSM_EVENT_ACCEPTED);
                return;
        }

        rport->stats.adisc_rejects++;
        ls_rjt = pld;
        bfa_trc(rport->fcs, ls_rjt->els_cmd.els_code);
        bfa_trc(rport->fcs, ls_rjt->reason_code);
        bfa_trc(rport->fcs, ls_rjt->reason_code_expl);
        bfa_sm_send_event(rport, RPSM_EVENT_FAILED);
}

static void
bfa_fcs_rport_send_nsdisc(void *rport_cbarg, struct bfa_fcxp_s *fcxp_alloced)
{
        struct bfa_fcs_rport_s *rport = rport_cbarg;
        struct bfa_fcs_lport_s *port = rport->port;
        struct fchs_s   fchs;
        struct bfa_fcxp_s *fcxp;
        int             len;
        bfa_cb_fcxp_send_t cbfn;

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

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

        if (rport->pwwn) {
                len = fc_gidpn_build(&fchs, bfa_fcxp_get_reqbuf(fcxp),
                                bfa_fcs_lport_get_fcid(port), 0, rport->pwwn);
                cbfn = bfa_fcs_rport_gidpn_response;
        } else {
                len = fc_gpnid_build(&fchs, bfa_fcxp_get_reqbuf(fcxp),
                                bfa_fcs_lport_get_fcid(port), 0, rport->pid);
                cbfn = bfa_fcs_rport_gpnid_response;
        }

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

        bfa_sm_send_event(rport, RPSM_EVENT_FCXP_SENT);
}

static void
bfa_fcs_rport_gidpn_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_rport_s *rport = (struct bfa_fcs_rport_s *) cbarg;
        struct ct_hdr_s *cthdr;
        struct fcgs_gidpn_resp_s        *gidpn_rsp;
        struct bfa_fcs_rport_s  *twin;
        struct list_head        *qe;

        bfa_trc(rport->fcs, rport->pwwn);

        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) {
                /* Check if the pid is the same as before. */
                gidpn_rsp = (struct fcgs_gidpn_resp_s *) (cthdr + 1);

                if (gidpn_rsp->dap == rport->pid) {
                        /* Device is online  */
                        bfa_sm_send_event(rport, RPSM_EVENT_ACCEPTED);
                } else {
                        /*
                         * Device's PID has changed. We need to cleanup
                         * and re-login. If there is another device with
                         * the the newly discovered pid, send an scn notice
                         * so that its new pid can be discovered.
                         */
                        list_for_each(qe, &rport->port->rport_q) {
                                twin = (struct bfa_fcs_rport_s *) qe;
                                if (twin == rport)
                                        continue;
                                if (gidpn_rsp->dap == twin->pid) {
                                        bfa_trc(rport->fcs, twin->pid);
                                        bfa_trc(rport->fcs, rport->pid);

                                        twin->pid = 0;
                                        bfa_sm_send_event(twin,
                                         RPSM_EVENT_ADDRESS_CHANGE);
                                }
                        }
                        rport->pid = gidpn_rsp->dap;
                        bfa_sm_send_event(rport, RPSM_EVENT_ADDRESS_CHANGE);
                }
                return;
        }

        /*
         * Reject Response
         */
        switch (cthdr->reason_code) {
        case CT_RSN_LOGICAL_BUSY:
                /*
                 * Need to retry
                 */
                bfa_sm_send_event(rport, RPSM_EVENT_TIMEOUT);
                break;

        case CT_RSN_UNABLE_TO_PERF:
                /*
                 * device doesn't exist : Start timer to cleanup this later.
                 */
                bfa_sm_send_event(rport, RPSM_EVENT_FAILED);
                break;

        default:
                bfa_sm_send_event(rport, RPSM_EVENT_FAILED);
                break;
        }
}

static void
bfa_fcs_rport_gpnid_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_rport_s *rport = (struct bfa_fcs_rport_s *) cbarg;
        struct ct_hdr_s *cthdr;

        bfa_trc(rport->fcs, rport->pwwn);

        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(rport, RPSM_EVENT_ACCEPTED);
                return;
        }

        /*
         * Reject Response
         */
        switch (cthdr->reason_code) {
        case CT_RSN_LOGICAL_BUSY:
                /*
                 * Need to retry
                 */
                bfa_sm_send_event(rport, RPSM_EVENT_TIMEOUT);
                break;

        case CT_RSN_UNABLE_TO_PERF:
                /*
                 * device doesn't exist : Start timer to cleanup this later.
                 */
                bfa_sm_send_event(rport, RPSM_EVENT_FAILED);
                break;

        default:
                bfa_sm_send_event(rport, RPSM_EVENT_FAILED);
                break;
        }
}

/*
 *      Called to send a logout to the rport.
 */
static void
bfa_fcs_rport_send_logo(void *rport_cbarg, struct bfa_fcxp_s *fcxp_alloced)
{
        struct bfa_fcs_rport_s *rport = rport_cbarg;
        struct bfa_fcs_lport_s *port;
        struct fchs_s   fchs;
        struct bfa_fcxp_s *fcxp;
        u16     len;

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

        port = rport->port;

        fcxp = fcxp_alloced ? fcxp_alloced :
               bfa_fcs_fcxp_alloc(port->fcs, BFA_FALSE);
        if (!fcxp) {
                bfa_fcs_fcxp_alloc_wait(port->fcs->bfa, &rport->fcxp_wqe,
                                bfa_fcs_rport_send_logo, rport, BFA_FALSE);
                return;
        }
        rport->fcxp = fcxp;

        len = fc_logo_build(&fchs, bfa_fcxp_get_reqbuf(fcxp), rport->pid,
                                bfa_fcs_lport_get_fcid(port), 0,
                                bfa_fcs_lport_get_pwwn(port));

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

        rport->stats.logos++;
        bfa_fcxp_discard(rport->fcxp);
        bfa_sm_send_event(rport, RPSM_EVENT_FCXP_SENT);
}

/*
 *      Send ACC for a LOGO received.
 */
static void
bfa_fcs_rport_send_logo_acc(void *rport_cbarg)
{
        struct bfa_fcs_rport_s *rport = rport_cbarg;
        struct bfa_fcs_lport_s *port;
        struct fchs_s   fchs;
        struct bfa_fcxp_s *fcxp;
        u16     len;

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

        port = rport->port;

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

        rport->stats.logo_rcvd++;
        len = fc_logo_acc_build(&fchs, bfa_fcxp_get_reqbuf(fcxp),
                                rport->pid, bfa_fcs_lport_get_fcid(port),
                                rport->reply_oxid);

        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);
}

/*
 *      brief
 *      This routine will be called by bfa_timer on timer timeouts.
 *
 *      param[in]       rport                   - pointer to bfa_fcs_lport_ns_t.
 *      param[out]      rport_status    - pointer to return vport status in
 *
 *      return
 *              void
 *
 *      Special Considerations:
 *
 *      note
 */
static void
bfa_fcs_rport_timeout(void *arg)
{
        struct bfa_fcs_rport_s *rport = (struct bfa_fcs_rport_s *) arg;

        rport->stats.plogi_timeouts++;
        bfa_stats(rport->port, rport_plogi_timeouts);
        bfa_sm_send_event(rport, RPSM_EVENT_TIMEOUT);
}

static void
bfa_fcs_rport_process_prli(struct bfa_fcs_rport_s *rport,
                        struct fchs_s *rx_fchs, u16 len)
{
        struct bfa_fcxp_s *fcxp;
        struct fchs_s   fchs;
        struct bfa_fcs_lport_s *port = rport->port;
        struct fc_prli_s        *prli;

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

        rport->stats.prli_rcvd++;

        /*
         * We are in Initiator Mode
         */
        prli = (struct fc_prli_s *) (rx_fchs + 1);

        if (prli->parampage.servparams.target) {
                /*
                 * PRLI from a target ?
                 * Send the Acc.
                 * PRLI sent by us will be used to transition the IT nexus,
                 * once the response is received from the target.
                 */
                bfa_trc(port->fcs, rx_fchs->s_id);
                rport->scsi_function = BFA_RPORT_TARGET;
        } else {
                bfa_trc(rport->fcs, prli->parampage.type);
                rport->scsi_function = BFA_RPORT_INITIATOR;
                bfa_fcs_itnim_is_initiator(rport->itnim);
        }

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

        len = fc_prli_acc_build(&fchs, bfa_fcxp_get_reqbuf(fcxp),
                                rx_fchs->s_id, bfa_fcs_lport_get_fcid(port),
                                rx_fchs->ox_id, port->port_cfg.roles);

        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_rport_process_rpsc(struct bfa_fcs_rport_s *rport,
                        struct fchs_s *rx_fchs, u16 len)
{
        struct bfa_fcxp_s *fcxp;
        struct fchs_s   fchs;
        struct bfa_fcs_lport_s *port = rport->port;
        struct fc_rpsc_speed_info_s speeds;
        struct bfa_port_attr_s pport_attr;

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

        rport->stats.rpsc_rcvd++;
        speeds.port_speed_cap =
                RPSC_SPEED_CAP_1G | RPSC_SPEED_CAP_2G | RPSC_SPEED_CAP_4G |
                RPSC_SPEED_CAP_8G;

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

        speeds.port_op_speed = fc_bfa_speed_to_rpsc_operspeed(pport_attr.speed);

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

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

        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_rport_process_adisc(struct bfa_fcs_rport_s *rport,
                        struct fchs_s *rx_fchs, u16 len)
{
        struct bfa_fcxp_s *fcxp;
        struct fchs_s   fchs;
        struct bfa_fcs_lport_s *port = rport->port;

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

        rport->stats.adisc_rcvd++;

        /*
         * Accept if the itnim for this rport is online.
         * Else reject the ADISC.
         */
        if (bfa_fcs_itnim_get_online_state(rport->itnim) == BFA_STATUS_OK) {

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

                len = fc_adisc_acc_build(&fchs, bfa_fcxp_get_reqbuf(fcxp),
                         rx_fchs->s_id, bfa_fcs_lport_get_fcid(port),
                         rx_fchs->ox_id, port->port_cfg.pwwn,
                         port->port_cfg.nwwn);

                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);
        } else {
                rport->stats.adisc_rejected++;
                bfa_fcs_rport_send_ls_rjt(rport, rx_fchs,
                                          FC_LS_RJT_RSN_UNABLE_TO_PERF_CMD,
                                          FC_LS_RJT_EXP_LOGIN_REQUIRED);
        }
}

static void
bfa_fcs_rport_hal_online(struct bfa_fcs_rport_s *rport)
{
        struct bfa_fcs_lport_s *port = rport->port;
        struct bfa_rport_info_s rport_info;

        rport_info.pid = rport->pid;
        rport_info.local_pid = port->pid;
        rport_info.lp_tag = port->lp_tag;
        rport_info.vf_id = port->fabric->vf_id;
        rport_info.vf_en = port->fabric->is_vf;
        rport_info.fc_class = rport->fc_cos;
        rport_info.cisc = rport->cisc;
        rport_info.max_frmsz = rport->maxfrsize;
        bfa_rport_online(rport->bfa_rport, &rport_info);
}

static void
bfa_fcs_rport_hal_offline(struct bfa_fcs_rport_s *rport)
{
        if (rport->bfa_rport)
                bfa_sm_send_event(rport->bfa_rport, BFA_RPORT_SM_OFFLINE);
        else
                bfa_cb_rport_offline(rport);
}

static struct bfa_fcs_rport_s *
bfa_fcs_rport_alloc(struct bfa_fcs_lport_s *port, wwn_t pwwn, u32 rpid)
{
        struct bfa_fcs_s        *fcs = port->fcs;
        struct bfa_fcs_rport_s *rport;
        struct bfad_rport_s     *rport_drv;

        /*
         * allocate rport
         */
        if (fcs->num_rport_logins >= bfa_fcs_rport_max_logins) {
                bfa_trc(fcs, rpid);
                return NULL;
        }

        if (bfa_fcb_rport_alloc(fcs->bfad, &rport, &rport_drv)
                != BFA_STATUS_OK) {
                bfa_trc(fcs, rpid);
                return NULL;
        }

        /*
         * Initialize r-port
         */
        rport->port = port;
        rport->fcs = fcs;
        rport->rp_drv = rport_drv;
        rport->pid = rpid;
        rport->pwwn = pwwn;
        rport->old_pid = 0;

        rport->bfa_rport = NULL;

        /*
         * allocate FC-4s
         */
        WARN_ON(!bfa_fcs_lport_is_initiator(port));

        if (bfa_fcs_lport_is_initiator(port)) {
                rport->itnim = bfa_fcs_itnim_create(rport);
                if (!rport->itnim) {
                        bfa_trc(fcs, rpid);
                        kfree(rport_drv);
                        return NULL;
                }
        }

        bfa_fcs_lport_add_rport(port, rport);
        fcs->num_rport_logins++;

        bfa_sm_set_state(rport, bfa_fcs_rport_sm_uninit);

        /* Initialize the Rport Features(RPF) Sub Module  */
        if (!BFA_FCS_PID_IS_WKA(rport->pid))
                bfa_fcs_rpf_init(rport);

        return rport;
}


static void
bfa_fcs_rport_free(struct bfa_fcs_rport_s *rport)
{
        struct bfa_fcs_lport_s *port = rport->port;
        struct bfa_fcs_s *fcs = port->fcs;

        /*
         * - delete FC-4s
         * - delete BFA rport
         * - remove from queue of rports
         */
        rport->plogi_pending = BFA_FALSE;

        if (bfa_fcs_lport_is_initiator(port)) {
                bfa_fcs_itnim_delete(rport->itnim);
                if (rport->pid != 0 && !BFA_FCS_PID_IS_WKA(rport->pid))
                        bfa_fcs_rpf_rport_offline(rport);
        }

        if (rport->bfa_rport) {
                bfa_sm_send_event(rport->bfa_rport, BFA_RPORT_SM_DELETE);
                rport->bfa_rport = NULL;
        }

        bfa_fcs_lport_del_rport(port, rport);
        fcs->num_rport_logins--;
        kfree(rport->rp_drv);
}

static void
bfa_fcs_rport_aen_post(struct bfa_fcs_rport_s *rport,
                        enum bfa_rport_aen_event event,
                        struct bfa_rport_aen_data_s *data)
{
        struct bfa_fcs_lport_s *port = rport->port;
        struct bfad_s *bfad = (struct bfad_s *)port->fcs->bfad;
        struct bfa_aen_entry_s  *aen_entry;

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

        if (event == BFA_RPORT_AEN_QOS_PRIO)
                aen_entry->aen_data.rport.priv.qos = data->priv.qos;
        else if (event == BFA_RPORT_AEN_QOS_FLOWID)
                aen_entry->aen_data.rport.priv.qos = data->priv.qos;

        aen_entry->aen_data.rport.vf_id = rport->port->fabric->vf_id;
        aen_entry->aen_data.rport.ppwwn = bfa_fcs_lport_get_pwwn(
                                        bfa_fcs_get_base_port(rport->fcs));
        aen_entry->aen_data.rport.lpwwn = bfa_fcs_lport_get_pwwn(rport->port);
        aen_entry->aen_data.rport.rpwwn = rport->pwwn;

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

static void
bfa_fcs_rport_fcs_online_action(struct bfa_fcs_rport_s *rport)
{
        if ((!rport->pid) || (!rport->pwwn)) {
                bfa_trc(rport->fcs, rport->pid);
                bfa_sm_fault(rport->fcs, rport->pid);
        }

        bfa_sm_send_event(rport->itnim, BFA_FCS_ITNIM_SM_FCS_ONLINE);
}

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

        rport->stats.onlines++;

        if ((!rport->pid) || (!rport->pwwn)) {
                bfa_trc(rport->fcs, rport->pid);
                bfa_sm_fault(rport->fcs, rport->pid);
        }

        if (bfa_fcs_lport_is_initiator(port)) {
                bfa_fcs_itnim_brp_online(rport->itnim);
                if (!BFA_FCS_PID_IS_WKA(rport->pid))
                        bfa_fcs_rpf_rport_online(rport);
        }

        wwn2str(lpwwn_buf, bfa_fcs_lport_get_pwwn(port));
        wwn2str(rpwwn_buf, rport->pwwn);
        if (!BFA_FCS_PID_IS_WKA(rport->pid)) {
                BFA_LOG(KERN_INFO, bfad, bfa_log_level,
                "Remote port (WWN = %s) online for logical port (WWN = %s)\n",
                rpwwn_buf, lpwwn_buf);
                bfa_fcs_rport_aen_post(rport, BFA_RPORT_AEN_ONLINE, NULL);
        }
}

static void
bfa_fcs_rport_fcs_offline_action(struct bfa_fcs_rport_s *rport)
{
        if (!BFA_FCS_PID_IS_WKA(rport->pid))
                bfa_fcs_rpf_rport_offline(rport);

        bfa_fcs_itnim_rport_offline(rport->itnim);
}

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

        if (!rport->bfa_rport) {
                bfa_fcs_rport_fcs_offline_action(rport);
                return;
        }

        rport->stats.offlines++;

        wwn2str(lpwwn_buf, bfa_fcs_lport_get_pwwn(port));
        wwn2str(rpwwn_buf, rport->pwwn);
        if (!BFA_FCS_PID_IS_WKA(rport->pid)) {
                if (bfa_fcs_lport_is_online(rport->port) == BFA_TRUE) {
                        BFA_LOG(KERN_ERR, bfad, bfa_log_level,
                                "Remote port (WWN = %s) connectivity lost for "
                                "logical port (WWN = %s)\n",
                                rpwwn_buf, lpwwn_buf);
                        bfa_fcs_rport_aen_post(rport,
                                BFA_RPORT_AEN_DISCONNECT, NULL);
                } else {
                        BFA_LOG(KERN_INFO, bfad, bfa_log_level,
                                "Remote port (WWN = %s) offlined by "
                                "logical port (WWN = %s)\n",
                                rpwwn_buf, lpwwn_buf);
                        bfa_fcs_rport_aen_post(rport,
                                BFA_RPORT_AEN_OFFLINE, NULL);
                }
        }

        if (bfa_fcs_lport_is_initiator(port)) {
                bfa_fcs_itnim_rport_offline(rport->itnim);
                if (!BFA_FCS_PID_IS_WKA(rport->pid))
                        bfa_fcs_rpf_rport_offline(rport);
        }
}

/*
 * Update rport parameters from PLOGI or PLOGI accept.
 */
static void
bfa_fcs_rport_update(struct bfa_fcs_rport_s *rport, struct fc_logi_s *plogi)
{
        bfa_fcs_lport_t *port = rport->port;

        /*
         * - port name
         * - node name
         */
        rport->pwwn = plogi->port_name;
        rport->nwwn = plogi->node_name;

        /*
         * - class of service
         */
        rport->fc_cos = 0;
        if (plogi->class3.class_valid)
                rport->fc_cos = FC_CLASS_3;

        if (plogi->class2.class_valid)
                rport->fc_cos |= FC_CLASS_2;

        /*
         * - CISC
         * - MAX receive frame size
         */
        rport->cisc = plogi->csp.cisc;
        if (be16_to_cpu(plogi->class3.rxsz) < be16_to_cpu(plogi->csp.rxsz))
                rport->maxfrsize = be16_to_cpu(plogi->class3.rxsz);
        else
                rport->maxfrsize = be16_to_cpu(plogi->csp.rxsz);

        bfa_trc(port->fcs, be16_to_cpu(plogi->csp.bbcred));
        bfa_trc(port->fcs, port->fabric->bb_credit);
        /*
         * Direct Attach P2P mode :
         * This is to handle a bug (233476) in IBM targets in Direct Attach
         *  Mode. Basically, in FLOGI Accept the target would have
         * erroneously set the BB Credit to the value used in the FLOGI
         * sent by the HBA. It uses the correct value (its own BB credit)
         * in PLOGI.
         */
        if ((!bfa_fcs_fabric_is_switched(port->fabric))  &&
                (be16_to_cpu(plogi->csp.bbcred) < port->fabric->bb_credit)) {

                bfa_trc(port->fcs, be16_to_cpu(plogi->csp.bbcred));
                bfa_trc(port->fcs, port->fabric->bb_credit);

                port->fabric->bb_credit = be16_to_cpu(plogi->csp.bbcred);
                bfa_fcport_set_tx_bbcredit(port->fcs->bfa,
                                          port->fabric->bb_credit);
        }

}

/*
 *      Called to handle LOGO received from an existing remote port.
 */
static void
bfa_fcs_rport_process_logo(struct bfa_fcs_rport_s *rport, struct fchs_s *fchs)
{
        rport->reply_oxid = fchs->ox_id;
        bfa_trc(rport->fcs, rport->reply_oxid);

        rport->prlo = BFA_FALSE;
        rport->stats.logo_rcvd++;
        bfa_sm_send_event(rport, RPSM_EVENT_LOGO_RCVD);
}



/*
 *  fcs_rport_public FCS rport public interfaces
 */

/*
 *      Called by bport/vport to create a remote port instance for a discovered
 *      remote device.
 *
 * @param[in] port      - base port or vport
 * @param[in] rpid      - remote port ID
 *
 * @return None
 */
struct bfa_fcs_rport_s *
bfa_fcs_rport_create(struct bfa_fcs_lport_s *port, u32 rpid)
{
        struct bfa_fcs_rport_s *rport;

        bfa_trc(port->fcs, rpid);
        rport = bfa_fcs_rport_alloc(port, WWN_NULL, rpid);
        if (!rport)
                return NULL;

        bfa_sm_send_event(rport, RPSM_EVENT_PLOGI_SEND);
        return rport;
}

/*
 * Called to create a rport for which only the wwn is known.
 *
 * @param[in] port      - base port
 * @param[in] rpwwn     - remote port wwn
 *
 * @return None
 */
struct bfa_fcs_rport_s *
bfa_fcs_rport_create_by_wwn(struct bfa_fcs_lport_s *port, wwn_t rpwwn)
{
        struct bfa_fcs_rport_s *rport;
        bfa_trc(port->fcs, rpwwn);
        rport = bfa_fcs_rport_alloc(port, rpwwn, 0);
        if (!rport)
                return NULL;

        bfa_sm_send_event(rport, RPSM_EVENT_ADDRESS_DISC);
        return rport;
}

/*
 *      Called by bport/vport to handle PLOGI received from a new remote port.
 *      If an existing rport does a plogi, it will be handled separately.
 */
void
bfa_fcs_rport_plogi_create(struct bfa_fcs_lport_s *port, struct fchs_s *fchs,
                                struct fc_logi_s *plogi)
{
        struct bfa_fcs_rport_s *rport;

        rport = bfa_fcs_rport_alloc(port, plogi->port_name, fchs->s_id);
        if (!rport)
                return;

        bfa_fcs_rport_update(rport, plogi);

        rport->reply_oxid = fchs->ox_id;
        bfa_trc(rport->fcs, rport->reply_oxid);

        rport->stats.plogi_rcvd++;
        bfa_sm_send_event(rport, RPSM_EVENT_PLOGI_RCVD);
}

/*
 *      Called by bport/vport to handle PLOGI received from an existing
 *       remote port.
 */
void
bfa_fcs_rport_plogi(struct bfa_fcs_rport_s *rport, struct fchs_s *rx_fchs,
                        struct fc_logi_s *plogi)
{
        /*
         * @todo Handle P2P and initiator-initiator.
         */

        bfa_fcs_rport_update(rport, plogi);

        rport->reply_oxid = rx_fchs->ox_id;
        bfa_trc(rport->fcs, rport->reply_oxid);

        rport->pid = rx_fchs->s_id;
        bfa_trc(rport->fcs, rport->pid);

        rport->stats.plogi_rcvd++;
        bfa_sm_send_event(rport, RPSM_EVENT_PLOGI_RCVD);
}


/*
 *      Called by bport/vport to notify SCN for the remote port
 */
void
bfa_fcs_rport_scn(struct bfa_fcs_rport_s *rport)
{
        rport->stats.rscns++;
        bfa_sm_send_event(rport, RPSM_EVENT_FAB_SCN);
}

/*
 *      brief
 *      This routine BFA callback for bfa_rport_online() call.
 *
 *      param[in]       cb_arg  -  rport struct.
 *
 *      return
 *              void
 *
 *      Special Considerations:
 *
 *      note
 */
void
bfa_cb_rport_online(void *cbarg)
{

        struct bfa_fcs_rport_s *rport = (struct bfa_fcs_rport_s *) cbarg;

        bfa_trc(rport->fcs, rport->pwwn);
        bfa_sm_send_event(rport, RPSM_EVENT_HCB_ONLINE);
}

/*
 *      brief
 *      This routine BFA callback for bfa_rport_offline() call.
 *
 *      param[in]       rport   -
 *
 *      return
 *              void
 *
 *      Special Considerations:
 *
 *      note
 */
void
bfa_cb_rport_offline(void *cbarg)
{
        struct bfa_fcs_rport_s *rport = (struct bfa_fcs_rport_s *) cbarg;

        bfa_trc(rport->fcs, rport->pwwn);
        bfa_sm_send_event(rport, RPSM_EVENT_HCB_OFFLINE);
}

/*
 *      brief
 *      This routine is a static BFA callback when there is a QoS flow_id
 *      change notification
 *
 *      param[in]       rport   -
 *
 *      return
 *              void
 *
 *      Special Considerations:
 *
 *      note
 */
void
bfa_cb_rport_qos_scn_flowid(void *cbarg,
                struct bfa_rport_qos_attr_s old_qos_attr,
                struct bfa_rport_qos_attr_s new_qos_attr)
{
        struct bfa_fcs_rport_s *rport = (struct bfa_fcs_rport_s *) cbarg;
        struct bfa_rport_aen_data_s aen_data;

        bfa_trc(rport->fcs, rport->pwwn);
        aen_data.priv.qos = new_qos_attr;
        bfa_fcs_rport_aen_post(rport, BFA_RPORT_AEN_QOS_FLOWID, &aen_data);
}

void
bfa_cb_rport_scn_online(struct bfa_s *bfa)
{
        struct bfa_fcs_s *fcs = &((struct bfad_s *)bfa->bfad)->bfa_fcs;
        struct bfa_fcs_lport_s *port = bfa_fcs_get_base_port(fcs);
        struct bfa_fcs_rport_s *rp;
        struct list_head *qe;

        list_for_each(qe, &port->rport_q) {
                rp = (struct bfa_fcs_rport_s *) qe;
                bfa_sm_send_event(rp, RPSM_EVENT_SCN_ONLINE);
                rp->scn_online = BFA_TRUE;
        }

        if (bfa_fcs_lport_is_online(port))
                bfa_fcs_lport_lip_scn_online(port);
}

void
bfa_cb_rport_scn_no_dev(void *rport)
{
        struct bfa_fcs_rport_s *rp = rport;

        bfa_sm_send_event(rp, RPSM_EVENT_SCN_OFFLINE);
        rp->scn_online = BFA_FALSE;
}

void
bfa_cb_rport_scn_offline(struct bfa_s *bfa)
{
        struct bfa_fcs_s *fcs = &((struct bfad_s *)bfa->bfad)->bfa_fcs;
        struct bfa_fcs_lport_s *port = bfa_fcs_get_base_port(fcs);
        struct bfa_fcs_rport_s *rp;
        struct list_head *qe;

        list_for_each(qe, &port->rport_q) {
                rp = (struct bfa_fcs_rport_s *) qe;
                bfa_sm_send_event(rp, RPSM_EVENT_SCN_OFFLINE);
                rp->scn_online = BFA_FALSE;
        }
}

/*
 *      brief
 *      This routine is a static BFA callback when there is a QoS priority
 *      change notification
 *
 *      param[in]       rport   -
 *
 *      return
 *              void
 *
 *      Special Considerations:
 *
 *      note
 */
void
bfa_cb_rport_qos_scn_prio(void *cbarg,
                struct bfa_rport_qos_attr_s old_qos_attr,
                struct bfa_rport_qos_attr_s new_qos_attr)
{
        struct bfa_fcs_rport_s *rport = (struct bfa_fcs_rport_s *) cbarg;
        struct bfa_rport_aen_data_s aen_data;

        bfa_trc(rport->fcs, rport->pwwn);
        aen_data.priv.qos = new_qos_attr;
        bfa_fcs_rport_aen_post(rport, BFA_RPORT_AEN_QOS_PRIO, &aen_data);
}

/*
 *              Called to process any unsolicted frames from this remote port
 */
void
bfa_fcs_rport_uf_recv(struct bfa_fcs_rport_s *rport,
                        struct fchs_s *fchs, u16 len)
{
        struct bfa_fcs_lport_s *port = rport->port;
        struct fc_els_cmd_s     *els_cmd;

        bfa_trc(rport->fcs, fchs->s_id);
        bfa_trc(rport->fcs, fchs->d_id);
        bfa_trc(rport->fcs, fchs->type);

        if (fchs->type != FC_TYPE_ELS)
                return;

        els_cmd = (struct fc_els_cmd_s *) (fchs + 1);

        bfa_trc(rport->fcs, els_cmd->els_code);

        switch (els_cmd->els_code) {
        case FC_ELS_LOGO:
                bfa_stats(port, plogi_rcvd);
                bfa_fcs_rport_process_logo(rport, fchs);
                break;

        case FC_ELS_ADISC:
                bfa_stats(port, adisc_rcvd);
                bfa_fcs_rport_process_adisc(rport, fchs, len);
                break;

        case FC_ELS_PRLO:
                bfa_stats(port, prlo_rcvd);
                if (bfa_fcs_lport_is_initiator(port))
                        bfa_fcs_fcpim_uf_recv(rport->itnim, fchs, len);
                break;

        case FC_ELS_PRLI:
                bfa_stats(port, prli_rcvd);
                bfa_fcs_rport_process_prli(rport, fchs, len);
                break;

        case FC_ELS_RPSC:
                bfa_stats(port, rpsc_rcvd);
                bfa_fcs_rport_process_rpsc(rport, fchs, len);
                break;

        default:
                bfa_stats(port, un_handled_els_rcvd);
                bfa_fcs_rport_send_ls_rjt(rport, fchs,
                                          FC_LS_RJT_RSN_CMD_NOT_SUPP,
                                          FC_LS_RJT_EXP_NO_ADDL_INFO);
                break;
        }
}

/* send best case  acc to prlo */
static void
bfa_fcs_rport_send_prlo_acc(struct bfa_fcs_rport_s *rport)
{
        struct bfa_fcs_lport_s *port = rport->port;
        struct fchs_s   fchs;
        struct bfa_fcxp_s *fcxp;
        int             len;

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

        fcxp = bfa_fcs_fcxp_alloc(port->fcs, BFA_FALSE);
        if (!fcxp)
                return;
        len = fc_prlo_acc_build(&fchs, bfa_fcxp_get_reqbuf(fcxp),
                        rport->pid, bfa_fcs_lport_get_fcid(port),
                        rport->reply_oxid, 0);

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

/*
 * Send a LS reject
 */
static void
bfa_fcs_rport_send_ls_rjt(struct bfa_fcs_rport_s *rport, struct fchs_s *rx_fchs,
                          u8 reason_code, u8 reason_code_expl)
{
        struct bfa_fcs_lport_s *port = rport->port;
        struct fchs_s   fchs;
        struct bfa_fcxp_s *fcxp;
        int             len;

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

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

/*
 * Return state of rport.
 */
int
bfa_fcs_rport_get_state(struct bfa_fcs_rport_s *rport)
{
        return bfa_rport_sm_to_state(rport_sm_table, rport->sm);
}


/*
 *      brief
 *               Called by the Driver to set rport delete/ageout timeout
 *
 *      param[in]               rport timeout value in seconds.
 *
 *      return None
 */
void
bfa_fcs_rport_set_del_timeout(u8 rport_tmo)
{
        /* convert to Millisecs */
        if (rport_tmo > 0)
                bfa_fcs_rport_del_timeout = rport_tmo * 1000;
}
void
bfa_fcs_rport_prlo(struct bfa_fcs_rport_s *rport, __be16 ox_id)
{
        bfa_trc(rport->fcs, rport->pid);

        rport->prlo = BFA_TRUE;
        rport->reply_oxid = ox_id;
        bfa_sm_send_event(rport, RPSM_EVENT_PRLO_RCVD);
}

/*
 * Called by BFAD to set the max limit on number of bfa_fcs_rport allocation
 * which limits number of concurrent logins to remote ports
 */
void
bfa_fcs_rport_set_max_logins(u32 max_logins)
{
        if (max_logins > 0)
                bfa_fcs_rport_max_logins = max_logins;
}

void
bfa_fcs_rport_get_attr(struct bfa_fcs_rport_s *rport,
                struct bfa_rport_attr_s *rport_attr)
{
        struct bfa_rport_qos_attr_s qos_attr;
        struct bfa_fcs_lport_s *port = rport->port;
        bfa_port_speed_t rport_speed = rport->rpf.rpsc_speed;
        struct bfa_port_attr_s port_attr;

        bfa_fcport_get_attr(rport->fcs->bfa, &port_attr);

        memset(rport_attr, 0, sizeof(struct bfa_rport_attr_s));
        memset(&qos_attr, 0, sizeof(struct bfa_rport_qos_attr_s));

        rport_attr->pid = rport->pid;
        rport_attr->pwwn = rport->pwwn;
        rport_attr->nwwn = rport->nwwn;
        rport_attr->cos_supported = rport->fc_cos;
        rport_attr->df_sz = rport->maxfrsize;
        rport_attr->state = bfa_fcs_rport_get_state(rport);
        rport_attr->fc_cos = rport->fc_cos;
        rport_attr->cisc = rport->cisc;
        rport_attr->scsi_function = rport->scsi_function;
        rport_attr->curr_speed  = rport->rpf.rpsc_speed;
        rport_attr->assigned_speed  = rport->rpf.assigned_speed;

        if (rport->bfa_rport) {
                qos_attr.qos_priority = rport->bfa_rport->qos_attr.qos_priority;
                qos_attr.qos_flow_id =
                        cpu_to_be32(rport->bfa_rport->qos_attr.qos_flow_id);
        }
        rport_attr->qos_attr = qos_attr;

        rport_attr->trl_enforced = BFA_FALSE;
        if (bfa_fcport_is_ratelim(port->fcs->bfa) &&
            (rport->scsi_function == BFA_RPORT_TARGET)) {
                if (rport_speed == BFA_PORT_SPEED_UNKNOWN)
                        rport_speed =
                                bfa_fcport_get_ratelim_speed(rport->fcs->bfa);

                if ((bfa_fcs_lport_get_rport_max_speed(port) !=
                    BFA_PORT_SPEED_UNKNOWN) && (rport_speed < port_attr.speed))
                        rport_attr->trl_enforced = BFA_TRUE;
        }
}

/*
 * Remote port implementation.
 */

/*
 *  fcs_rport_api FCS rport API.
 */

struct bfa_fcs_rport_s *
bfa_fcs_rport_lookup(struct bfa_fcs_lport_s *port, wwn_t rpwwn)
{
        struct bfa_fcs_rport_s *rport;

        rport = bfa_fcs_lport_get_rport_by_pwwn(port, rpwwn);
        if (rport == NULL) {
                /*
                 * TBD Error handling
                 */
        }

        return rport;
}

/*
 * Remote port features (RPF) implementation.
 */

#define BFA_FCS_RPF_RETRIES     (3)
#define BFA_FCS_RPF_RETRY_TIMEOUT  (1000) /* 1 sec (In millisecs) */

static void     bfa_fcs_rpf_send_rpsc2(void *rport_cbarg,
                                struct bfa_fcxp_s *fcxp_alloced);
static void     bfa_fcs_rpf_rpsc2_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_rpf_timeout(void *arg);

static void     bfa_fcs_rpf_sm_uninit(struct bfa_fcs_rpf_s *rpf,
                                        enum rpf_event event);
static void     bfa_fcs_rpf_sm_rpsc_sending(struct bfa_fcs_rpf_s *rpf,
                                       enum rpf_event event);
static void     bfa_fcs_rpf_sm_rpsc(struct bfa_fcs_rpf_s *rpf,
                                       enum rpf_event event);
static void     bfa_fcs_rpf_sm_rpsc_retry(struct bfa_fcs_rpf_s *rpf,
                                        enum rpf_event event);
static void     bfa_fcs_rpf_sm_offline(struct bfa_fcs_rpf_s *rpf,
                                        enum rpf_event event);
static void     bfa_fcs_rpf_sm_online(struct bfa_fcs_rpf_s *rpf,
                                        enum rpf_event event);

static void
bfa_fcs_rpf_sm_uninit(struct bfa_fcs_rpf_s *rpf, enum rpf_event event)
{
        struct bfa_fcs_rport_s *rport = rpf->rport;
        struct bfa_fcs_fabric_s *fabric = &rport->fcs->fabric;

        bfa_trc(rport->fcs, rport->pwwn);
        bfa_trc(rport->fcs, rport->pid);
        bfa_trc(rport->fcs, event);

        switch (event) {
        case RPFSM_EVENT_RPORT_ONLINE:
                /* Send RPSC2 to a Brocade fabric only. */
                if ((!BFA_FCS_PID_IS_WKA(rport->pid)) &&
                        ((rport->port->fabric->lps->brcd_switch) ||
                        (bfa_fcs_fabric_get_switch_oui(fabric) ==
                                                BFA_FCS_BRCD_SWITCH_OUI))) {
                        bfa_sm_set_state(rpf, bfa_fcs_rpf_sm_rpsc_sending);
                        rpf->rpsc_retries = 0;
                        bfa_fcs_rpf_send_rpsc2(rpf, NULL);
                }
                break;

        case RPFSM_EVENT_RPORT_OFFLINE:
                break;

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

static void
bfa_fcs_rpf_sm_rpsc_sending(struct bfa_fcs_rpf_s *rpf, enum rpf_event event)
{
        struct bfa_fcs_rport_s *rport = rpf->rport;

        bfa_trc(rport->fcs, event);

        switch (event) {
        case RPFSM_EVENT_FCXP_SENT:
                bfa_sm_set_state(rpf, bfa_fcs_rpf_sm_rpsc);
                break;

        case RPFSM_EVENT_RPORT_OFFLINE:
                bfa_sm_set_state(rpf, bfa_fcs_rpf_sm_offline);
                bfa_fcxp_walloc_cancel(rport->fcs->bfa, &rpf->fcxp_wqe);
                rpf->rpsc_retries = 0;
                break;

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

static void
bfa_fcs_rpf_sm_rpsc(struct bfa_fcs_rpf_s *rpf, enum rpf_event event)
{
        struct bfa_fcs_rport_s *rport = rpf->rport;

        bfa_trc(rport->fcs, rport->pid);
        bfa_trc(rport->fcs, event);

        switch (event) {
        case RPFSM_EVENT_RPSC_COMP:
                bfa_sm_set_state(rpf, bfa_fcs_rpf_sm_online);
                /* Update speed info in f/w via BFA */
                if (rpf->rpsc_speed != BFA_PORT_SPEED_UNKNOWN)
                        bfa_rport_speed(rport->bfa_rport, rpf->rpsc_speed);
                else if (rpf->assigned_speed != BFA_PORT_SPEED_UNKNOWN)
                        bfa_rport_speed(rport->bfa_rport, rpf->assigned_speed);
                break;

        case RPFSM_EVENT_RPSC_FAIL:
                /* RPSC not supported by rport */
                bfa_sm_set_state(rpf, bfa_fcs_rpf_sm_online);
                break;

        case RPFSM_EVENT_RPSC_ERROR:
                /* need to retry...delayed a bit. */
                if (rpf->rpsc_retries++ < BFA_FCS_RPF_RETRIES) {
                        bfa_timer_start(rport->fcs->bfa, &rpf->timer,
                                    bfa_fcs_rpf_timeout, rpf,
                                    BFA_FCS_RPF_RETRY_TIMEOUT);
                        bfa_sm_set_state(rpf, bfa_fcs_rpf_sm_rpsc_retry);
                } else {
                        bfa_sm_set_state(rpf, bfa_fcs_rpf_sm_online);
                }
                break;

        case RPFSM_EVENT_RPORT_OFFLINE:
                bfa_sm_set_state(rpf, bfa_fcs_rpf_sm_offline);
                bfa_fcxp_discard(rpf->fcxp);
                rpf->rpsc_retries = 0;
                break;

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

static void
bfa_fcs_rpf_sm_rpsc_retry(struct bfa_fcs_rpf_s *rpf, enum rpf_event event)
{
        struct bfa_fcs_rport_s *rport = rpf->rport;

        bfa_trc(rport->fcs, rport->pid);
        bfa_trc(rport->fcs, event);

        switch (event) {
        case RPFSM_EVENT_TIMEOUT:
                /* re-send the RPSC */
                bfa_sm_set_state(rpf, bfa_fcs_rpf_sm_rpsc_sending);
                bfa_fcs_rpf_send_rpsc2(rpf, NULL);
                break;

        case RPFSM_EVENT_RPORT_OFFLINE:
                bfa_timer_stop(&rpf->timer);
                bfa_sm_set_state(rpf, bfa_fcs_rpf_sm_offline);
                rpf->rpsc_retries = 0;
                break;

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

static void
bfa_fcs_rpf_sm_online(struct bfa_fcs_rpf_s *rpf, enum rpf_event event)
{
        struct bfa_fcs_rport_s *rport = rpf->rport;

        bfa_trc(rport->fcs, rport->pwwn);
        bfa_trc(rport->fcs, rport->pid);
        bfa_trc(rport->fcs, event);

        switch (event) {
        case RPFSM_EVENT_RPORT_OFFLINE:
                bfa_sm_set_state(rpf, bfa_fcs_rpf_sm_offline);
                rpf->rpsc_retries = 0;
                break;

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

static void
bfa_fcs_rpf_sm_offline(struct bfa_fcs_rpf_s *rpf, enum rpf_event event)
{
        struct bfa_fcs_rport_s *rport = rpf->rport;

        bfa_trc(rport->fcs, rport->pwwn);
        bfa_trc(rport->fcs, rport->pid);
        bfa_trc(rport->fcs, event);

        switch (event) {
        case RPFSM_EVENT_RPORT_ONLINE:
                bfa_sm_set_state(rpf, bfa_fcs_rpf_sm_rpsc_sending);
                bfa_fcs_rpf_send_rpsc2(rpf, NULL);
                break;

        case RPFSM_EVENT_RPORT_OFFLINE:
                break;

        default:
                bfa_sm_fault(rport->fcs, event);
        }
}
/*
 * Called when Rport is created.
 */
void
bfa_fcs_rpf_init(struct bfa_fcs_rport_s *rport)
{
        struct bfa_fcs_rpf_s *rpf = &rport->rpf;

        bfa_trc(rport->fcs, rport->pid);
        rpf->rport = rport;

        bfa_sm_set_state(rpf, bfa_fcs_rpf_sm_uninit);
}

/*
 * Called when Rport becomes online
 */
void
bfa_fcs_rpf_rport_online(struct bfa_fcs_rport_s *rport)
{
        bfa_trc(rport->fcs, rport->pid);

        if (__fcs_min_cfg(rport->port->fcs))
                return;

        if (bfa_fcs_fabric_is_switched(rport->port->fabric))
                bfa_sm_send_event(&rport->rpf, RPFSM_EVENT_RPORT_ONLINE);
}

/*
 * Called when Rport becomes offline
 */
void
bfa_fcs_rpf_rport_offline(struct bfa_fcs_rport_s *rport)
{
        bfa_trc(rport->fcs, rport->pid);

        if (__fcs_min_cfg(rport->port->fcs))
                return;

        rport->rpf.rpsc_speed = 0;
        bfa_sm_send_event(&rport->rpf, RPFSM_EVENT_RPORT_OFFLINE);
}

static void
bfa_fcs_rpf_timeout(void *arg)
{
        struct bfa_fcs_rpf_s *rpf = (struct bfa_fcs_rpf_s *) arg;
        struct bfa_fcs_rport_s *rport = rpf->rport;

        bfa_trc(rport->fcs, rport->pid);
        bfa_sm_send_event(rpf, RPFSM_EVENT_TIMEOUT);
}

static void
bfa_fcs_rpf_send_rpsc2(void *rpf_cbarg, struct bfa_fcxp_s *fcxp_alloced)
{
        struct bfa_fcs_rpf_s *rpf = (struct bfa_fcs_rpf_s *)rpf_cbarg;
        struct bfa_fcs_rport_s *rport = rpf->rport;
        struct bfa_fcs_lport_s *port = rport->port;
        struct fchs_s   fchs;
        int             len;
        struct bfa_fcxp_s *fcxp;

        bfa_trc(rport->fcs, rport->pwwn);

        fcxp = fcxp_alloced ? fcxp_alloced :
               bfa_fcs_fcxp_alloc(port->fcs, BFA_TRUE);
        if (!fcxp) {
                bfa_fcs_fcxp_alloc_wait(port->fcs->bfa, &rpf->fcxp_wqe,
                                bfa_fcs_rpf_send_rpsc2, rpf, BFA_TRUE);
                return;
        }
        rpf->fcxp = fcxp;

        len = fc_rpsc2_build(&fchs, bfa_fcxp_get_reqbuf(fcxp), rport->pid,
                            bfa_fcs_lport_get_fcid(port), &rport->pid, 1);

        bfa_fcxp_send(fcxp, NULL, port->fabric->vf_id, port->lp_tag, BFA_FALSE,
                          FC_CLASS_3, len, &fchs, bfa_fcs_rpf_rpsc2_response,
                          rpf, FC_MAX_PDUSZ, FC_ELS_TOV);
        rport->stats.rpsc_sent++;
        bfa_sm_send_event(rpf, RPFSM_EVENT_FCXP_SENT);

}

static void
bfa_fcs_rpf_rpsc2_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_rpf_s *rpf = (struct bfa_fcs_rpf_s *) cbarg;
        struct bfa_fcs_rport_s *rport = rpf->rport;
        struct fc_ls_rjt_s *ls_rjt;
        struct fc_rpsc2_acc_s *rpsc2_acc;
        u16     num_ents;

        bfa_trc(rport->fcs, req_status);

        if (req_status != BFA_STATUS_OK) {
                bfa_trc(rport->fcs, req_status);
                if (req_status == BFA_STATUS_ETIMER)
                        rport->stats.rpsc_failed++;
                bfa_sm_send_event(rpf, RPFSM_EVENT_RPSC_ERROR);
                return;
        }

        rpsc2_acc = (struct fc_rpsc2_acc_s *) BFA_FCXP_RSP_PLD(fcxp);
        if (rpsc2_acc->els_cmd == FC_ELS_ACC) {
                rport->stats.rpsc_accs++;
                num_ents = be16_to_cpu(rpsc2_acc->num_pids);
                bfa_trc(rport->fcs, num_ents);
                if (num_ents > 0) {
                        WARN_ON(be32_to_cpu(rpsc2_acc->port_info[0].pid) !=
                                                bfa_ntoh3b(rport->pid));
                        bfa_trc(rport->fcs,
                                be32_to_cpu(rpsc2_acc->port_info[0].pid));
                        bfa_trc(rport->fcs,
                                be16_to_cpu(rpsc2_acc->port_info[0].speed));
                        bfa_trc(rport->fcs,
                                be16_to_cpu(rpsc2_acc->port_info[0].index));
                        bfa_trc(rport->fcs,
                                rpsc2_acc->port_info[0].type);

                        if (rpsc2_acc->port_info[0].speed == 0) {
                                bfa_sm_send_event(rpf, RPFSM_EVENT_RPSC_ERROR);
                                return;
                        }

                        rpf->rpsc_speed = fc_rpsc_operspeed_to_bfa_speed(
                                be16_to_cpu(rpsc2_acc->port_info[0].speed));

                        bfa_sm_send_event(rpf, RPFSM_EVENT_RPSC_COMP);
                }
        } else {
                ls_rjt = (struct fc_ls_rjt_s *) BFA_FCXP_RSP_PLD(fcxp);
                bfa_trc(rport->fcs, ls_rjt->reason_code);
                bfa_trc(rport->fcs, ls_rjt->reason_code_expl);
                rport->stats.rpsc_rejects++;
                if (ls_rjt->reason_code == FC_LS_RJT_RSN_CMD_NOT_SUPP)
                        bfa_sm_send_event(rpf, RPFSM_EVENT_RPSC_FAIL);
                else
                        bfa_sm_send_event(rpf, RPFSM_EVENT_RPSC_ERROR);
        }
}