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

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

BFA_TRC_FILE(FCS, PORT);

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

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

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

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

/*
 *  fcs_port_sm FCS logical port state machine
 */

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

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

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

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

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

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

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

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

        case BFA_FCS_PORT_SM_OFFLINE:
                break;

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

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

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

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

        case BFA_FCS_PORT_SM_DELETE:

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

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

        case BFA_FCS_PORT_SM_DELRPORT:
                break;

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

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

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

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

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

        case BFA_FCS_PORT_SM_DELRPORT:
        case BFA_FCS_PORT_SM_OFFLINE:
                break;

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

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

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

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

/*
 *  fcs_port_pvt
 */

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

        bfad->bfad_flags |= BFAD_PORT_ONLINE;
}

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

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

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

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

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

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

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

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

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

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

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

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

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

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

        /* Base port will be deleted by the OS driver */
        if (port->vport) {
                bfa_fcb_lport_delete(port->fcs->bfad, port->port_cfg.roles,
                                port->fabric->vf_drv,
                                port->vport ? port->vport->vport_drv : NULL);
                bfa_fcs_vport_delete_comp(port->vport);
        } else {
                bfa_wc_down(&port->fabric->wc);
        }
}


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

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

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

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

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

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

        if (fchs->type == FC_TYPE_BLS) {
                if ((fchs->routing == FC_RTG_BASIC_LINK) &&
                                (fchs->cat_info == FC_CAT_ABTS))
                        bfa_fcs_lport_abts_acc(lport, fchs);
                return;
        }
        /*
         * look for a matching remote port ID
         */
        rport = bfa_fcs_lport_get_rport_by_pid(lport, pid);
        if (rport) {
                bfa_trc(rport->fcs, fchs->s_id);
                bfa_trc(rport->fcs, fchs->d_id);
                bfa_trc(rport->fcs, fchs->type);

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

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

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

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

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

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

}

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

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

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

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

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

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

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

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

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

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

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

        bfa_sm_send_event(port, BFA_FCS_PORT_SM_DELRPORT);
}

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

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

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

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

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

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

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

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

        lport->port_cfg = *port_cfg;

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

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

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

/*
 *  fcs_lport_api
 */

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

        port_attr->port_cfg = port->port_cfg;

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

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

/*
 *  bfa_fcs_lport_fab port fab functions
 */

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

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

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

/*
 *  bfa_fcs_lport_n2n  functions
 */

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

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

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

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

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

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

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

#define BFA_FCS_FDMI_CMD_MAX_RETRIES 2

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

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

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

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

        fdmi->retry_cnt = 0;

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

        case FDMISM_EVENT_PORT_OFFLINE:
                break;

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

        bfa_sm_send_event(fdmi, FDMISM_EVENT_RHBA_SENT);
}

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

        bfa_sm_send_event(fdmi, FDMISM_EVENT_RPRT_SENT);
}

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

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

        len = sizeof(port_attrib->attr_count);

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

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

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

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

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

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

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

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

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

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

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

        return len;
}

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

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

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

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

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

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

/*
*  RPA : Register Port Attributes.
 */
static void

bfa_fcs_lport_fdmi_send_rpa(void *fdmi_cbarg, struct bfa_fcxp_s *fcxp_alloced)
{
        struct bfa_fcs_lport_fdmi_s *fdmi = fdmi_cbarg;
        struct bfa_fcs_lport_s *port = fdmi->ms->port;
        struct fchs_s fchs;
        u16        len, attr_len;
        struct bfa_fcxp_s *fcxp;
        u8        *pyld;

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

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

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

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

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

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

        bfa_sm_send_event(fdmi, FDMISM_EVENT_RPA_SENT);
}

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

        rpa->port_name = bfa_fcs_lport_get_pwwn(port);

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

        len += sizeof(rpa->port_name);

        return len;
}

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

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

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

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

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

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

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

        bfa_sm_send_event(fdmi, FDMISM_EVENT_TIMEOUT);
}

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

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

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

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

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

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

        hba_attr->max_ct_pyld = cpu_to_be32(FC_MAX_PDUSZ);
}

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

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

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

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

        /*
         * Supported Speeds
         */
        port_attr->supp_speed = cpu_to_be32(BFA_FCS_FDMI_SUPORTED_SPEEDS);

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

        /*
         * Max PDU Size.
         */
        port_attr->max_frm_size = cpu_to_be32(FC_MAX_PDUSZ);

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

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

}


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

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

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

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

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

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

#define BFA_FCS_MS_CMD_MAX_RETRIES  2

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

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

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

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

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

        case MSSM_EVENT_PORT_OFFLINE:
                break;

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

        bfa_sm_send_event(ms, MSSM_EVENT_FCXP_SENT);
}

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

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

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

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

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

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

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

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

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

                bfa_sm_send_event(ms, MSSM_EVENT_RSP_OK);
                return;
        }

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

        bfa_sm_send_event(ms, MSSM_EVENT_FCXP_SENT);
}

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

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

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

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

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

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

/*
 *  ms_pvt MS local functions
 */

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

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

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

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

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

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

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

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

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

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

        switch (els_cmd->els_code) {

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

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

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

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

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

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

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


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

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

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

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

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

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

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

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

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

/*
 * forward declarations
 */
static void     bfa_fcs_lport_ns_send_plogi(void *ns_cbarg,
                                           struct bfa_fcxp_s *fcxp_alloced);
static void     bfa_fcs_lport_ns_send_rspn_id(void *ns_cbarg,
                                             struct bfa_fcxp_s *fcxp_alloced);
static void     bfa_fcs_lport_ns_send_rft_id(void *ns_cbarg,
                                            struct bfa_fcxp_s *fcxp_alloced);
static void     bfa_fcs_lport_ns_send_rff_id(void *ns_cbarg,
                                            struct bfa_fcxp_s *fcxp_alloced);
static void     bfa_fcs_lport_ns_send_gid_ft(void *ns_cbarg,
                                            struct bfa_fcxp_s *fcxp_alloced);
static void     bfa_fcs_lport_ns_timeout(void *arg);
static void     bfa_fcs_lport_ns_plogi_response(void *fcsarg,
                                               struct bfa_fcxp_s *fcxp,
                                               void *cbarg,
                                               bfa_status_t req_status,
                                               u32 rsp_len,
                                               u32 resid_len,
                                               struct fchs_s *rsp_fchs);
static void     bfa_fcs_lport_ns_rspn_id_response(void *fcsarg,
                                                 struct bfa_fcxp_s *fcxp,
                                                 void *cbarg,
                                                 bfa_status_t req_status,
                                                 u32 rsp_len,
                                                 u32 resid_len,
                                                 struct fchs_s *rsp_fchs);
static void     bfa_fcs_lport_ns_rft_id_response(void *fcsarg,
                                                struct bfa_fcxp_s *fcxp,
                                                void *cbarg,
                                                bfa_status_t req_status,
                                                u32 rsp_len,
                                                u32 resid_len,
                                                struct fchs_s *rsp_fchs);
static void     bfa_fcs_lport_ns_rff_id_response(void *fcsarg,
                                                struct bfa_fcxp_s *fcxp,
                                                void *cbarg,
                                                bfa_status_t req_status,
                                                u32 rsp_len,
                                                u32 resid_len,
                                                struct fchs_s *rsp_fchs);