drivers/scsi/bfa/bfa_fcs_lport.c

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

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

BFA_TRC_FILE(FCS, PORT);

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,
	BFA_FCS_PORT_SM_STOP = 6,
};

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

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

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

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

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

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

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

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

	case BFA_FCS_PORT_SM_OFFLINE:
		break;

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

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

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

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

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

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

	case BFA_FCS_PORT_SM_DELETE:

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

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

	case BFA_FCS_PORT_SM_DELRPORT:
		break;

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

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

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

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

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

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

	case BFA_FCS_PORT_SM_DELRPORT:
	case BFA_FCS_PORT_SM_OFFLINE:
		break;

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

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

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

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

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

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

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

/*
 *  fcs_port_pvt
 */

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

	fcxp = bfa_fcs_fcxp_alloc(port->fcs);
	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");
	bfa_fcs_lport_aen_post(port, BFA_LPORT_AEN_ONLINE);

	bfad->bfad_flags |= BFAD_PORT_ONLINE;
}

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

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

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

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

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

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

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

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

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

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

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

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

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

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

	/* Base port will be deleted by the OS driver */
	if (port->vport) {
		bfa_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;
	}

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

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

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

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

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

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

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

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

}

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

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

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

/*
 *   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->bfa_tag :
				  lport->fabric->lps->bfa_tag;

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

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

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

	lport->port_cfg = *port_cfg;

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

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

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

/*
 *  fcs_lport_api
 */

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

	port_attr->port_cfg = port->port_cfg;

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

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

/*
 *  bfa_fcs_lport_fab port fab functions
 */

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

/*
 *   Called by port to notify transition to online state.
 */
static void
bfa_fcs_lport_fab_online(struct bfa_fcs_lport_s *port)
{
	bfa_fcs_lport_ns_online(port);
	bfa_fcs_lport_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);
u32	bfa_fcs_fdmi_convert_speed(enum bfa_port_speed pport_speed);

/*
 *  fcs_fdmi_sm FCS FDMI state machine
 */

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

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

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

	fdmi->retry_cnt = 0;

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

	case FDMISM_EVENT_PORT_OFFLINE:
		break;

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

	fcxp = fcxp_alloced ? fcxp_alloced : bfa_fcs_fcxp_alloc(port->fcs);
	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
	 */
	switch (pport_attr.speed_supported) {
	case BFA_PORT_SPEED_16GBPS:
		port_attr->supp_speed =
			cpu_to_be32(BFA_FCS_FDMI_SUPP_SPEEDS_16G);
		break;

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

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

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

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

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

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

}

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

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

	case BFA_PORT_SPEED_4GBPS:
		ret = FDMI_TRANS_SPEED_4G;
		break;

	case BFA_PORT_SPEED_8GBPS:
		ret = FDMI_TRANS_SPEED_8G;
		break;

	case BFA_PORT_SPEED_10GBPS:
		ret = FDMI_TRANS_SPEED_10G;
		break;

	case BFA_PORT_SPEED_16GBPS:
		ret = FDMI_TRANS_SPEED_16G;
		break;

	default:
		ret = FDMI_TRANS_SPEED_UNKNOWN;
	}
	return ret;
}

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

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

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

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

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

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

#define BFA_FCS_MS_CMD_MAX_RETRIES  2

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

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

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

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

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

	case MSSM_EVENT_PORT_OFFLINE:
		break;

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

	fcxp = fcxp_alloced ? fcxp_alloced : bfa_fcs_fcxp_alloc(port->fcs);
	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_fcport_get_rx_bbcredit(port->fcs->bfa));

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

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

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

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

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

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

	switch (els_cmd->els_code) {

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

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

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

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

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

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

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


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

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

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

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

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

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

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

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