drivers/scsi/bfa/rport_ftrs.c - kernel/prism - Git at Google

 /*
  * Copyright (c) 2005-2009 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.
  */

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

 #include <bfa.h>
 #include <bfa_svc.h>
 #include "fcbuild.h"
 #include "fcs_rport.h"
 #include "fcs_lport.h"
 #include "fcs_trcmod.h"
 #include "fcs_fcxp.h"
 #include "fcs.h"

 BFA_TRC_FILE(FCS, RPORT_FTRS);

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

 static void     bfa_fcs_rpf_send_rpsc2(void *rport_cbarg,
 			struct bfa_fcxp_s *fcxp_alloced);
 static void     bfa_fcs_rpf_rpsc2_response(void *fcsarg,
 			struct bfa_fcxp_s *fcxp, void *cbarg,
 			bfa_status_t req_status, u32 rsp_len,
 			u32 resid_len,
 			struct fchs_s *rsp_fchs);
 static void     bfa_fcs_rpf_timeout(void *arg);

 /**
  *  fcs_rport_ftrs_sm FCS rport state machine events
  */

 enum rpf_event {
 	RPFSM_EVENT_RPORT_OFFLINE  = 1,     /*  Rport offline            */
 	RPFSM_EVENT_RPORT_ONLINE   = 2,     /*  Rport online            */
 	RPFSM_EVENT_FCXP_SENT      = 3,    /*  Frame from has been sent */
 	RPFSM_EVENT_TIMEOUT  	   = 4,    /*  Rport SM timeout event   */
 	RPFSM_EVENT_RPSC_COMP      = 5,
 	RPFSM_EVENT_RPSC_FAIL      = 6,
 	RPFSM_EVENT_RPSC_ERROR     = 7,
 };

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

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

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

 	switch (event) {
 	case RPFSM_EVENT_RPORT_ONLINE :
 		if (!BFA_FCS_PID_IS_WKA(rport->pid)) {
 			bfa_sm_set_state(rpf, bfa_fcs_rpf_sm_rpsc_sending);
 			rpf->rpsc_retries = 0;
 			bfa_fcs_rpf_send_rpsc2(rpf, NULL);
 			break;
 		};

 	case RPFSM_EVENT_RPORT_OFFLINE :
 		break;

 	default:
 		bfa_assert(0);
 	}
 }

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

 	bfa_trc(rport->fcs, event);

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

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

 	default:
 		bfa_assert(0);
 	}
 }

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

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

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

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

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

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

 	default:
 		bfa_assert(0);
 	}
 }

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

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

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

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

 	default:
 		bfa_assert(0);
 	}
 }

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

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

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

 	default:
 		bfa_assert(0);
 	}
 }

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

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

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

 	case RPFSM_EVENT_RPORT_OFFLINE :
 		break;

 	default:
 		bfa_assert(0);
 	}
 }
 /**
  * Called when Rport is created.
  */
 void  bfa_fcs_rpf_init(struct bfa_fcs_rport_s *rport)
 {
 	struct bfa_fcs_rpf_s *rpf = &rport->rpf;

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

 	bfa_sm_set_state(rpf, bfa_fcs_rpf_sm_uninit);
 }

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

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

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

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

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

 	bfa_sm_send_event(&rport->rpf, RPFSM_EVENT_RPORT_OFFLINE);
 }

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

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

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

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

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

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

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

 }

 static void
 bfa_fcs_rpf_rpsc2_response(void *fcsarg, struct bfa_fcxp_s *fcxp, void *cbarg,
 			    bfa_status_t req_status, u32 rsp_len,
 			    u32 resid_len, struct fchs_s *rsp_fchs)
 {
 	struct bfa_fcs_rpf_s *rpf = (struct bfa_fcs_rpf_s *) cbarg;
 	struct bfa_fcs_rport_s *rport = rpf->rport;
 	struct fc_ls_rjt_s    *ls_rjt;
 	struct fc_rpsc2_acc_s  *rpsc2_acc;
 	u16        num_ents;

 	bfa_trc(rport->fcs, req_status);

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

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

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

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

 			bfa_sm_send_event(rpf, RPFSM_EVENT_RPSC_COMP);
 		}
 	} else {
 		ls_rjt = (struct fc_ls_rjt_s *) BFA_FCXP_RSP_PLD(fcxp);
 		bfa_trc(rport->fcs, ls_rjt->reason_code);
 		bfa_trc(rport->fcs, ls_rjt->reason_code_expl);
 		rport->stats.rpsc_rejects++;
 		if (ls_rjt->reason_code == FC_LS_RJT_RSN_CMD_NOT_SUPP) {
 			bfa_sm_send_event(rpf, RPFSM_EVENT_RPSC_FAIL);
 		} else {
 			bfa_sm_send_event(rpf, RPFSM_EVENT_RPSC_ERROR);
 		}
 	}
 }
	/*
	* Copyright (c) 2005-2009 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.
	*/

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

	#include <bfa.h>
	#include <bfa_svc.h>
	#include "fcbuild.h"
	#include "fcs_rport.h"
	#include "fcs_lport.h"
	#include "fcs_trcmod.h"
	#include "fcs_fcxp.h"
	#include "fcs.h"

	BFA_TRC_FILE(FCS, RPORT_FTRS);

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

	static void bfa_fcs_rpf_send_rpsc2(void *rport_cbarg,
	struct bfa_fcxp_s *fcxp_alloced);
	static void bfa_fcs_rpf_rpsc2_response(void *fcsarg,
	struct bfa_fcxp_s fcxp, void cbarg,
	bfa_status_t req_status, u32 rsp_len,
	u32 resid_len,
	struct fchs_s *rsp_fchs);
	static void bfa_fcs_rpf_timeout(void *arg);

	/**
	* fcs_rport_ftrs_sm FCS rport state machine events
	*/

	enum rpf_event {
	RPFSM_EVENT_RPORT_OFFLINE = 1, /* Rport offline */
	RPFSM_EVENT_RPORT_ONLINE = 2, /* Rport online */
	RPFSM_EVENT_FCXP_SENT = 3, /* Frame from has been sent */
	RPFSM_EVENT_TIMEOUT = 4, /* Rport SM timeout event */
	RPFSM_EVENT_RPSC_COMP = 5,
	RPFSM_EVENT_RPSC_FAIL = 6,
	RPFSM_EVENT_RPSC_ERROR = 7,
	};

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

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

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

	switch (event) {
	case RPFSM_EVENT_RPORT_ONLINE :
	if (!BFA_FCS_PID_IS_WKA(rport->pid)) {
	bfa_sm_set_state(rpf, bfa_fcs_rpf_sm_rpsc_sending);
	rpf->rpsc_retries = 0;
	bfa_fcs_rpf_send_rpsc2(rpf, NULL);
	break;
	};

	case RPFSM_EVENT_RPORT_OFFLINE :
	break;

	default:
	bfa_assert(0);
	}
	}

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

	bfa_trc(rport->fcs, event);

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

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

	default:
	bfa_assert(0);
	}
	}

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

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

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

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

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

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

	default:
	bfa_assert(0);
	}
	}

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

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

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

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

	default:
	bfa_assert(0);
	}
	}

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

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

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

	default:
	bfa_assert(0);
	}
	}

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

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

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

	case RPFSM_EVENT_RPORT_OFFLINE :
	break;

	default:
	bfa_assert(0);
	}
	}
	/**
	* Called when Rport is created.
	*/
	void bfa_fcs_rpf_init(struct bfa_fcs_rport_s *rport)
	{
	struct bfa_fcs_rpf_s *rpf = &rport->rpf;

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

	bfa_sm_set_state(rpf, bfa_fcs_rpf_sm_uninit);
	}

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

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

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

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

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

	bfa_sm_send_event(&rport->rpf, RPFSM_EVENT_RPORT_OFFLINE);
	}

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

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

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

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

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

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

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

	}

	static void
	bfa_fcs_rpf_rpsc2_response(void fcsarg, struct bfa_fcxp_s fcxp, void *cbarg,
	bfa_status_t req_status, u32 rsp_len,
	u32 resid_len, struct fchs_s *rsp_fchs)
	{
	struct bfa_fcs_rpf_s rpf = (struct bfa_fcs_rpf_s ) cbarg;
	struct bfa_fcs_rport_s *rport = rpf->rport;
	struct fc_ls_rjt_s *ls_rjt;
	struct fc_rpsc2_acc_s *rpsc2_acc;
	u16 num_ents;

	bfa_trc(rport->fcs, req_status);

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

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

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

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

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