drivers/scsi/bfa/bfa_svc.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_plog.h"
#include "bfa_cs.h"
#include "bfa_modules.h"

BFA_TRC_FILE(HAL, FCXP);
BFA_MODULE(fcdiag);
BFA_MODULE(fcxp);
BFA_MODULE(sgpg);
BFA_MODULE(lps);
BFA_MODULE(fcport);
BFA_MODULE(rport);
BFA_MODULE(uf);

/*
 * LPS related definitions
 */
#define BFA_LPS_MIN_LPORTS      (1)
#define BFA_LPS_MAX_LPORTS      (256)

/*
 * Maximum Vports supported per physical port or vf.
 */
#define BFA_LPS_MAX_VPORTS_SUPP_CB  255
#define BFA_LPS_MAX_VPORTS_SUPP_CT  190


/*
 * FC PORT related definitions
 */
/*
 * The port is considered disabled if corresponding physical port or IOC are
 * disabled explicitly
 */
#define BFA_PORT_IS_DISABLED(bfa) \
	((bfa_fcport_is_disabled(bfa) == BFA_TRUE) || \
	(bfa_ioc_is_disabled(&bfa->ioc) == BFA_TRUE))

/*
 * BFA port state machine events
 */
enum bfa_fcport_sm_event {
	BFA_FCPORT_SM_START	= 1,	/*  start port state machine	*/
	BFA_FCPORT_SM_STOP	= 2,	/*  stop port state machine	*/
	BFA_FCPORT_SM_ENABLE	= 3,	/*  enable port		*/
	BFA_FCPORT_SM_DISABLE	= 4,	/*  disable port state machine */
	BFA_FCPORT_SM_FWRSP	= 5,	/*  firmware enable/disable rsp */
	BFA_FCPORT_SM_LINKUP	= 6,	/*  firmware linkup event	*/
	BFA_FCPORT_SM_LINKDOWN	= 7,	/*  firmware linkup down	*/
	BFA_FCPORT_SM_QRESUME	= 8,	/*  CQ space available	*/
	BFA_FCPORT_SM_HWFAIL	= 9,	/*  IOC h/w failure		*/
	BFA_FCPORT_SM_DPORTENABLE = 10, /*  enable dport      */
	BFA_FCPORT_SM_DPORTDISABLE = 11,/*  disable dport     */
	BFA_FCPORT_SM_FAA_MISCONFIG = 12,	/* FAA misconfiguratin */
	BFA_FCPORT_SM_DDPORTENABLE  = 13,	/* enable ddport	*/
	BFA_FCPORT_SM_DDPORTDISABLE = 14,	/* disable ddport	*/
};

/*
 * BFA port link notification state machine events
 */

enum bfa_fcport_ln_sm_event {
	BFA_FCPORT_LN_SM_LINKUP		= 1,	/*  linkup event	*/
	BFA_FCPORT_LN_SM_LINKDOWN	= 2,	/*  linkdown event	*/
	BFA_FCPORT_LN_SM_NOTIFICATION	= 3	/*  done notification	*/
};

/*
 * RPORT related definitions
 */
#define bfa_rport_offline_cb(__rp) do {					\
	if ((__rp)->bfa->fcs)						\
		bfa_cb_rport_offline((__rp)->rport_drv);      \
	else {								\
		bfa_cb_queue((__rp)->bfa, &(__rp)->hcb_qe,		\
				__bfa_cb_rport_offline, (__rp));      \
	}								\
} while (0)

#define bfa_rport_online_cb(__rp) do {					\
	if ((__rp)->bfa->fcs)						\
		bfa_cb_rport_online((__rp)->rport_drv);      \
	else {								\
		bfa_cb_queue((__rp)->bfa, &(__rp)->hcb_qe,		\
				  __bfa_cb_rport_online, (__rp));      \
		}							\
} while (0)

/*
 * forward declarations FCXP related functions
 */
static void	__bfa_fcxp_send_cbfn(void *cbarg, bfa_boolean_t complete);
static void	hal_fcxp_rx_plog(struct bfa_s *bfa, struct bfa_fcxp_s *fcxp,
				struct bfi_fcxp_send_rsp_s *fcxp_rsp);
static void	hal_fcxp_tx_plog(struct bfa_s *bfa, u32 reqlen,
				struct bfa_fcxp_s *fcxp, struct fchs_s *fchs);
static void	bfa_fcxp_qresume(void *cbarg);
static void	bfa_fcxp_queue(struct bfa_fcxp_s *fcxp,
				struct bfi_fcxp_send_req_s *send_req);

/*
 * forward declarations for LPS functions
 */
static void bfa_lps_meminfo(struct bfa_iocfc_cfg_s *cfg,
		struct bfa_meminfo_s *minfo, struct bfa_s *bfa);
static void bfa_lps_attach(struct bfa_s *bfa, void *bfad,
				struct bfa_iocfc_cfg_s *cfg,
				struct bfa_pcidev_s *pcidev);
static void bfa_lps_detach(struct bfa_s *bfa);
static void bfa_lps_start(struct bfa_s *bfa);
static void bfa_lps_stop(struct bfa_s *bfa);
static void bfa_lps_iocdisable(struct bfa_s *bfa);
static void bfa_lps_login_rsp(struct bfa_s *bfa,
				struct bfi_lps_login_rsp_s *rsp);
static void bfa_lps_no_res(struct bfa_lps_s *first_lps, u8 count);
static void bfa_lps_logout_rsp(struct bfa_s *bfa,
				struct bfi_lps_logout_rsp_s *rsp);
static void bfa_lps_reqq_resume(void *lps_arg);
static void bfa_lps_free(struct bfa_lps_s *lps);
static void bfa_lps_send_login(struct bfa_lps_s *lps);
static void bfa_lps_send_logout(struct bfa_lps_s *lps);
static void bfa_lps_send_set_n2n_pid(struct bfa_lps_s *lps);
static void bfa_lps_login_comp(struct bfa_lps_s *lps);
static void bfa_lps_logout_comp(struct bfa_lps_s *lps);
static void bfa_lps_cvl_event(struct bfa_lps_s *lps);

/*
 * forward declaration for LPS state machine
 */
static void bfa_lps_sm_init(struct bfa_lps_s *lps, enum bfa_lps_event event);
static void bfa_lps_sm_login(struct bfa_lps_s *lps, enum bfa_lps_event event);
static void bfa_lps_sm_loginwait(struct bfa_lps_s *lps, enum bfa_lps_event
					event);
static void bfa_lps_sm_online(struct bfa_lps_s *lps, enum bfa_lps_event event);
static void bfa_lps_sm_online_n2n_pid_wait(struct bfa_lps_s *lps,
					enum bfa_lps_event event);
static void bfa_lps_sm_logout(struct bfa_lps_s *lps, enum bfa_lps_event event);
static void bfa_lps_sm_logowait(struct bfa_lps_s *lps, enum bfa_lps_event
					event);

/*
 * forward declaration for FC Port functions
 */
static bfa_boolean_t bfa_fcport_send_enable(struct bfa_fcport_s *fcport);
static bfa_boolean_t bfa_fcport_send_disable(struct bfa_fcport_s *fcport);
static void bfa_fcport_update_linkinfo(struct bfa_fcport_s *fcport);
static void bfa_fcport_reset_linkinfo(struct bfa_fcport_s *fcport);
static void bfa_fcport_set_wwns(struct bfa_fcport_s *fcport);
static void __bfa_cb_fcport_event(void *cbarg, bfa_boolean_t complete);
static void bfa_fcport_scn(struct bfa_fcport_s *fcport,
			enum bfa_port_linkstate event, bfa_boolean_t trunk);
static void bfa_fcport_queue_cb(struct bfa_fcport_ln_s *ln,
				enum bfa_port_linkstate event);
static void __bfa_cb_fcport_stats_clr(void *cbarg, bfa_boolean_t complete);
static void bfa_fcport_stats_get_timeout(void *cbarg);
static void bfa_fcport_stats_clr_timeout(void *cbarg);
static void bfa_trunk_iocdisable(struct bfa_s *bfa);

/*
 * forward declaration for FC PORT state machine
 */
static void     bfa_fcport_sm_uninit(struct bfa_fcport_s *fcport,
					enum bfa_fcport_sm_event event);
static void     bfa_fcport_sm_enabling_qwait(struct bfa_fcport_s *fcport,
					enum bfa_fcport_sm_event event);
static void     bfa_fcport_sm_enabling(struct bfa_fcport_s *fcport,
					enum bfa_fcport_sm_event event);
static void     bfa_fcport_sm_linkdown(struct bfa_fcport_s *fcport,
					enum bfa_fcport_sm_event event);
static void     bfa_fcport_sm_linkup(struct bfa_fcport_s *fcport,
					enum bfa_fcport_sm_event event);
static void     bfa_fcport_sm_disabling(struct bfa_fcport_s *fcport,
					enum bfa_fcport_sm_event event);
static void     bfa_fcport_sm_disabling_qwait(struct bfa_fcport_s *fcport,
					enum bfa_fcport_sm_event event);
static void     bfa_fcport_sm_toggling_qwait(struct bfa_fcport_s *fcport,
					enum bfa_fcport_sm_event event);
static void     bfa_fcport_sm_disabled(struct bfa_fcport_s *fcport,
					enum bfa_fcport_sm_event event);
static void     bfa_fcport_sm_stopped(struct bfa_fcport_s *fcport,
					enum bfa_fcport_sm_event event);
static void     bfa_fcport_sm_iocdown(struct bfa_fcport_s *fcport,
					enum bfa_fcport_sm_event event);
static void     bfa_fcport_sm_iocfail(struct bfa_fcport_s *fcport,
					enum bfa_fcport_sm_event event);
static void	bfa_fcport_sm_dport(struct bfa_fcport_s *fcport,
					enum bfa_fcport_sm_event event);
static void     bfa_fcport_sm_ddport(struct bfa_fcport_s *fcport,
					enum bfa_fcport_sm_event event);
static void	bfa_fcport_sm_faa_misconfig(struct bfa_fcport_s *fcport,
					enum bfa_fcport_sm_event event);

static void     bfa_fcport_ln_sm_dn(struct bfa_fcport_ln_s *ln,
					enum bfa_fcport_ln_sm_event event);
static void     bfa_fcport_ln_sm_dn_nf(struct bfa_fcport_ln_s *ln,
					enum bfa_fcport_ln_sm_event event);
static void     bfa_fcport_ln_sm_dn_up_nf(struct bfa_fcport_ln_s *ln,
					enum bfa_fcport_ln_sm_event event);
static void     bfa_fcport_ln_sm_up(struct bfa_fcport_ln_s *ln,
					enum bfa_fcport_ln_sm_event event);
static void     bfa_fcport_ln_sm_up_nf(struct bfa_fcport_ln_s *ln,
					enum bfa_fcport_ln_sm_event event);
static void     bfa_fcport_ln_sm_up_dn_nf(struct bfa_fcport_ln_s *ln,
					enum bfa_fcport_ln_sm_event event);
static void     bfa_fcport_ln_sm_up_dn_up_nf(struct bfa_fcport_ln_s *ln,
					enum bfa_fcport_ln_sm_event event);

static struct bfa_sm_table_s hal_port_sm_table[] = {
	{BFA_SM(bfa_fcport_sm_uninit), BFA_PORT_ST_UNINIT},
	{BFA_SM(bfa_fcport_sm_enabling_qwait), BFA_PORT_ST_ENABLING_QWAIT},
	{BFA_SM(bfa_fcport_sm_enabling), BFA_PORT_ST_ENABLING},
	{BFA_SM(bfa_fcport_sm_linkdown), BFA_PORT_ST_LINKDOWN},
	{BFA_SM(bfa_fcport_sm_linkup), BFA_PORT_ST_LINKUP},
	{BFA_SM(bfa_fcport_sm_disabling_qwait), BFA_PORT_ST_DISABLING_QWAIT},
	{BFA_SM(bfa_fcport_sm_toggling_qwait), BFA_PORT_ST_TOGGLING_QWAIT},
	{BFA_SM(bfa_fcport_sm_disabling), BFA_PORT_ST_DISABLING},
	{BFA_SM(bfa_fcport_sm_disabled), BFA_PORT_ST_DISABLED},
	{BFA_SM(bfa_fcport_sm_stopped), BFA_PORT_ST_STOPPED},
	{BFA_SM(bfa_fcport_sm_iocdown), BFA_PORT_ST_IOCDOWN},
	{BFA_SM(bfa_fcport_sm_iocfail), BFA_PORT_ST_IOCDOWN},
	{BFA_SM(bfa_fcport_sm_dport), BFA_PORT_ST_DPORT},
	{BFA_SM(bfa_fcport_sm_ddport), BFA_PORT_ST_DDPORT},
	{BFA_SM(bfa_fcport_sm_faa_misconfig), BFA_PORT_ST_FAA_MISCONFIG},
};


/*
 * forward declaration for RPORT related functions
 */
static struct bfa_rport_s *bfa_rport_alloc(struct bfa_rport_mod_s *rp_mod);
static void		bfa_rport_free(struct bfa_rport_s *rport);
static bfa_boolean_t	bfa_rport_send_fwcreate(struct bfa_rport_s *rp);
static bfa_boolean_t	bfa_rport_send_fwdelete(struct bfa_rport_s *rp);
static bfa_boolean_t	bfa_rport_send_fwspeed(struct bfa_rport_s *rp);
static void		__bfa_cb_rport_online(void *cbarg,
						bfa_boolean_t complete);
static void		__bfa_cb_rport_offline(void *cbarg,
						bfa_boolean_t complete);

/*
 * forward declaration for RPORT state machine
 */
static void     bfa_rport_sm_uninit(struct bfa_rport_s *rp,
					enum bfa_rport_event event);
static void     bfa_rport_sm_created(struct bfa_rport_s *rp,
					enum bfa_rport_event event);
static void     bfa_rport_sm_fwcreate(struct bfa_rport_s *rp,
					enum bfa_rport_event event);
static void     bfa_rport_sm_online(struct bfa_rport_s *rp,
					enum bfa_rport_event event);
static void     bfa_rport_sm_fwdelete(struct bfa_rport_s *rp,
					enum bfa_rport_event event);
static void     bfa_rport_sm_offline(struct bfa_rport_s *rp,
					enum bfa_rport_event event);
static void     bfa_rport_sm_deleting(struct bfa_rport_s *rp,
					enum bfa_rport_event event);
static void     bfa_rport_sm_offline_pending(struct bfa_rport_s *rp,
					enum bfa_rport_event event);
static void     bfa_rport_sm_delete_pending(struct bfa_rport_s *rp,
					enum bfa_rport_event event);
static void     bfa_rport_sm_iocdisable(struct bfa_rport_s *rp,
					enum bfa_rport_event event);
static void     bfa_rport_sm_fwcreate_qfull(struct bfa_rport_s *rp,
					enum bfa_rport_event event);
static void     bfa_rport_sm_fwdelete_qfull(struct bfa_rport_s *rp,
					enum bfa_rport_event event);
static void     bfa_rport_sm_deleting_qfull(struct bfa_rport_s *rp,
					enum bfa_rport_event event);

/*
 * PLOG related definitions
 */
static int
plkd_validate_logrec(struct bfa_plog_rec_s *pl_rec)
{
	if ((pl_rec->log_type != BFA_PL_LOG_TYPE_INT) &&
		(pl_rec->log_type != BFA_PL_LOG_TYPE_STRING))
		return 1;

	if ((pl_rec->log_type != BFA_PL_LOG_TYPE_INT) &&
		(pl_rec->log_num_ints > BFA_PL_INT_LOG_SZ))
		return 1;

	return 0;
}

static u64
bfa_get_log_time(void)
{
	u64 system_time = 0;
	struct timeval tv;
	do_gettimeofday(&tv);

	/* We are interested in seconds only. */
	system_time = tv.tv_sec;
	return system_time;
}

static void
bfa_plog_add(struct bfa_plog_s *plog, struct bfa_plog_rec_s *pl_rec)
{
	u16 tail;
	struct bfa_plog_rec_s *pl_recp;

	if (plog->plog_enabled == 0)
		return;

	if (plkd_validate_logrec(pl_rec)) {
		WARN_ON(1);
		return;
	}

	tail = plog->tail;

	pl_recp = &(plog->plog_recs[tail]);

	memcpy(pl_recp, pl_rec, sizeof(struct bfa_plog_rec_s));

	pl_recp->tv = bfa_get_log_time();
	BFA_PL_LOG_REC_INCR(plog->tail);

	if (plog->head == plog->tail)
		BFA_PL_LOG_REC_INCR(plog->head);
}

void
bfa_plog_init(struct bfa_plog_s *plog)
{
	memset((char *)plog, 0, sizeof(struct bfa_plog_s));

	memcpy(plog->plog_sig, BFA_PL_SIG_STR, BFA_PL_SIG_LEN);
	plog->head = plog->tail = 0;
	plog->plog_enabled = 1;
}

void
bfa_plog_str(struct bfa_plog_s *plog, enum bfa_plog_mid mid,
		enum bfa_plog_eid event,
		u16 misc, char *log_str)
{
	struct bfa_plog_rec_s  lp;

	if (plog->plog_enabled) {
		memset(&lp, 0, sizeof(struct bfa_plog_rec_s));
		lp.mid = mid;
		lp.eid = event;
		lp.log_type = BFA_PL_LOG_TYPE_STRING;
		lp.misc = misc;
		strncpy(lp.log_entry.string_log, log_str,
			BFA_PL_STRING_LOG_SZ - 1);
		lp.log_entry.string_log[BFA_PL_STRING_LOG_SZ - 1] = '\0';
		bfa_plog_add(plog, &lp);
	}
}

void
bfa_plog_intarr(struct bfa_plog_s *plog, enum bfa_plog_mid mid,
		enum bfa_plog_eid event,
		u16 misc, u32 *intarr, u32 num_ints)
{
	struct bfa_plog_rec_s  lp;
	u32 i;

	if (num_ints > BFA_PL_INT_LOG_SZ)
		num_ints = BFA_PL_INT_LOG_SZ;

	if (plog->plog_enabled) {
		memset(&lp, 0, sizeof(struct bfa_plog_rec_s));
		lp.mid = mid;
		lp.eid = event;
		lp.log_type = BFA_PL_LOG_TYPE_INT;
		lp.misc = misc;

		for (i = 0; i < num_ints; i++)
			lp.log_entry.int_log[i] = intarr[i];

		lp.log_num_ints = (u8) num_ints;

		bfa_plog_add(plog, &lp);
	}
}

void
bfa_plog_fchdr(struct bfa_plog_s *plog, enum bfa_plog_mid mid,
			enum bfa_plog_eid event,
			u16 misc, struct fchs_s *fchdr)
{
	struct bfa_plog_rec_s  lp;
	u32	*tmp_int = (u32 *) fchdr;
	u32	ints[BFA_PL_INT_LOG_SZ];

	if (plog->plog_enabled) {
		memset(&lp, 0, sizeof(struct bfa_plog_rec_s));

		ints[0] = tmp_int[0];
		ints[1] = tmp_int[1];
		ints[2] = tmp_int[4];

		bfa_plog_intarr(plog, mid, event, misc, ints, 3);
	}
}

void
bfa_plog_fchdr_and_pl(struct bfa_plog_s *plog, enum bfa_plog_mid mid,
		      enum bfa_plog_eid event, u16 misc, struct fchs_s *fchdr,
		      u32 pld_w0)
{
	struct bfa_plog_rec_s  lp;
	u32	*tmp_int = (u32 *) fchdr;
	u32	ints[BFA_PL_INT_LOG_SZ];

	if (plog->plog_enabled) {
		memset(&lp, 0, sizeof(struct bfa_plog_rec_s));

		ints[0] = tmp_int[0];
		ints[1] = tmp_int[1];
		ints[2] = tmp_int[4];
		ints[3] = pld_w0;

		bfa_plog_intarr(plog, mid, event, misc, ints, 4);
	}
}


/*
 *  fcxp_pvt BFA FCXP private functions
 */

static void
claim_fcxps_mem(struct bfa_fcxp_mod_s *mod)
{
	u16	i;
	struct bfa_fcxp_s *fcxp;

	fcxp = (struct bfa_fcxp_s *) bfa_mem_kva_curp(mod);
	memset(fcxp, 0, sizeof(struct bfa_fcxp_s) * mod->num_fcxps);

	INIT_LIST_HEAD(&mod->fcxp_req_free_q);
	INIT_LIST_HEAD(&mod->fcxp_rsp_free_q);
	INIT_LIST_HEAD(&mod->fcxp_active_q);
	INIT_LIST_HEAD(&mod->fcxp_req_unused_q);
	INIT_LIST_HEAD(&mod->fcxp_rsp_unused_q);

	mod->fcxp_list = fcxp;

	for (i = 0; i < mod->num_fcxps; i++) {
		fcxp->fcxp_mod = mod;
		fcxp->fcxp_tag = i;

		if (i < (mod->num_fcxps / 2)) {
			list_add_tail(&fcxp->qe, &mod->fcxp_req_free_q);
			fcxp->req_rsp = BFA_TRUE;
		} else {
			list_add_tail(&fcxp->qe, &mod->fcxp_rsp_free_q);
			fcxp->req_rsp = BFA_FALSE;
		}

		bfa_reqq_winit(&fcxp->reqq_wqe, bfa_fcxp_qresume, fcxp);
		fcxp->reqq_waiting = BFA_FALSE;

		fcxp = fcxp + 1;
	}

	bfa_mem_kva_curp(mod) = (void *)fcxp;
}

static void
bfa_fcxp_meminfo(struct bfa_iocfc_cfg_s *cfg, struct bfa_meminfo_s *minfo,
		struct bfa_s *bfa)
{
	struct bfa_fcxp_mod_s *fcxp_mod = BFA_FCXP_MOD(bfa);
	struct bfa_mem_kva_s *fcxp_kva = BFA_MEM_FCXP_KVA(bfa);
	struct bfa_mem_dma_s *seg_ptr;
	u16	nsegs, idx, per_seg_fcxp;
	u16	num_fcxps = cfg->fwcfg.num_fcxp_reqs;
	u32	per_fcxp_sz;

	if (num_fcxps == 0)
		return;

	if (cfg->drvcfg.min_cfg)
		per_fcxp_sz = 2 * BFA_FCXP_MAX_IBUF_SZ;
	else
		per_fcxp_sz = BFA_FCXP_MAX_IBUF_SZ + BFA_FCXP_MAX_LBUF_SZ;

	/* dma memory */
	nsegs = BFI_MEM_DMA_NSEGS(num_fcxps, per_fcxp_sz);
	per_seg_fcxp = BFI_MEM_NREQS_SEG(per_fcxp_sz);

	bfa_mem_dma_seg_iter(fcxp_mod, seg_ptr, nsegs, idx) {
		if (num_fcxps >= per_seg_fcxp) {
			num_fcxps -= per_seg_fcxp;
			bfa_mem_dma_setup(minfo, seg_ptr,
				per_seg_fcxp * per_fcxp_sz);
		} else
			bfa_mem_dma_setup(minfo, seg_ptr,
				num_fcxps * per_fcxp_sz);
	}

	/* kva memory */
	bfa_mem_kva_setup(minfo, fcxp_kva,
		cfg->fwcfg.num_fcxp_reqs * sizeof(struct bfa_fcxp_s));
}

static void
bfa_fcxp_attach(struct bfa_s *bfa, void *bfad, struct bfa_iocfc_cfg_s *cfg,
		struct bfa_pcidev_s *pcidev)
{
	struct bfa_fcxp_mod_s *mod = BFA_FCXP_MOD(bfa);

	mod->bfa = bfa;
	mod->num_fcxps = cfg->fwcfg.num_fcxp_reqs;

	/*
	 * Initialize FCXP request and response payload sizes.
	 */
	mod->req_pld_sz = mod->rsp_pld_sz = BFA_FCXP_MAX_IBUF_SZ;
	if (!cfg->drvcfg.min_cfg)
		mod->rsp_pld_sz = BFA_FCXP_MAX_LBUF_SZ;

	INIT_LIST_HEAD(&mod->req_wait_q);
	INIT_LIST_HEAD(&mod->rsp_wait_q);

	claim_fcxps_mem(mod);
}

static void
bfa_fcxp_detach(struct bfa_s *bfa)
{
}

static void
bfa_fcxp_start(struct bfa_s *bfa)
{
}

static void
bfa_fcxp_stop(struct bfa_s *bfa)
{
}

static void
bfa_fcxp_iocdisable(struct bfa_s *bfa)
{
	struct bfa_fcxp_mod_s *mod = BFA_FCXP_MOD(bfa);
	struct bfa_fcxp_s *fcxp;
	struct list_head	      *qe, *qen;

	/* Enqueue unused fcxp resources to free_q */
	list_splice_tail_init(&mod->fcxp_req_unused_q, &mod->fcxp_req_free_q);
	list_splice_tail_init(&mod->fcxp_rsp_unused_q, &mod->fcxp_rsp_free_q);

	list_for_each_safe(qe, qen, &mod->fcxp_active_q) {
		fcxp = (struct bfa_fcxp_s *) qe;
		if (fcxp->caller == NULL) {
			fcxp->send_cbfn(fcxp->caller, fcxp, fcxp->send_cbarg,
					BFA_STATUS_IOC_FAILURE, 0, 0, NULL);
			bfa_fcxp_free(fcxp);
		} else {
			fcxp->rsp_status = BFA_STATUS_IOC_FAILURE;
			bfa_cb_queue(bfa, &fcxp->hcb_qe,
				     __bfa_fcxp_send_cbfn, fcxp);
		}
	}
}

static struct bfa_fcxp_s *
bfa_fcxp_get(struct bfa_fcxp_mod_s *fm, bfa_boolean_t req)
{
	struct bfa_fcxp_s *fcxp;

	if (req)
		bfa_q_deq(&fm->fcxp_req_free_q, &fcxp);
	else
		bfa_q_deq(&fm->fcxp_rsp_free_q, &fcxp);

	if (fcxp)
		list_add_tail(&fcxp->qe, &fm->fcxp_active_q);

	return fcxp;
}

static void
bfa_fcxp_init_reqrsp(struct bfa_fcxp_s *fcxp,
	       struct bfa_s *bfa,
	       u8 *use_ibuf,
	       u32 *nr_sgles,
	       bfa_fcxp_get_sgaddr_t *r_sga_cbfn,
	       bfa_fcxp_get_sglen_t *r_sglen_cbfn,
	       struct list_head *r_sgpg_q,
	       int n_sgles,
	       bfa_fcxp_get_sgaddr_t sga_cbfn,
	       bfa_fcxp_get_sglen_t sglen_cbfn)
{

	WARN_ON(bfa == NULL);

	bfa_trc(bfa, fcxp->fcxp_tag);

	if (n_sgles == 0) {
		*use_ibuf = 1;
	} else {
		WARN_ON(*sga_cbfn == NULL);
		WARN_ON(*sglen_cbfn == NULL);

		*use_ibuf = 0;
		*r_sga_cbfn = sga_cbfn;
		*r_sglen_cbfn = sglen_cbfn;

		*nr_sgles = n_sgles;

		/*
		 * alloc required sgpgs
		 */
		if (n_sgles > BFI_SGE_INLINE)
			WARN_ON(1);
	}

}

static void
bfa_fcxp_init(struct bfa_fcxp_s *fcxp,
	       void *caller, struct bfa_s *bfa, int nreq_sgles,
	       int nrsp_sgles, bfa_fcxp_get_sgaddr_t req_sga_cbfn,
	       bfa_fcxp_get_sglen_t req_sglen_cbfn,
	       bfa_fcxp_get_sgaddr_t rsp_sga_cbfn,
	       bfa_fcxp_get_sglen_t rsp_sglen_cbfn)
{

	WARN_ON(bfa == NULL);

	bfa_trc(bfa, fcxp->fcxp_tag);

	fcxp->caller = caller;

	bfa_fcxp_init_reqrsp(fcxp, bfa,
		&fcxp->use_ireqbuf, &fcxp->nreq_sgles, &fcxp->req_sga_cbfn,
		&fcxp->req_sglen_cbfn, &fcxp->req_sgpg_q,
		nreq_sgles, req_sga_cbfn, req_sglen_cbfn);

	bfa_fcxp_init_reqrsp(fcxp, bfa,
		&fcxp->use_irspbuf, &fcxp->nrsp_sgles, &fcxp->rsp_sga_cbfn,
		&fcxp->rsp_sglen_cbfn, &fcxp->rsp_sgpg_q,
		nrsp_sgles, rsp_sga_cbfn, rsp_sglen_cbfn);

}

static void
bfa_fcxp_put(struct bfa_fcxp_s *fcxp)
{
	struct bfa_fcxp_mod_s *mod = fcxp->fcxp_mod;
	struct bfa_fcxp_wqe_s *wqe;

	if (fcxp->req_rsp)
		bfa_q_deq(&mod->req_wait_q, &wqe);
	else
		bfa_q_deq(&mod->rsp_wait_q, &wqe);

	if (wqe) {
		bfa_trc(mod->bfa, fcxp->fcxp_tag);

		bfa_fcxp_init(fcxp, wqe->caller, wqe->bfa, wqe->nreq_sgles,
			wqe->nrsp_sgles, wqe->req_sga_cbfn,
			wqe->req_sglen_cbfn, wqe->rsp_sga_cbfn,
			wqe->rsp_sglen_cbfn);

		wqe->alloc_cbfn(wqe->alloc_cbarg, fcxp);
		return;
	}

	WARN_ON(!bfa_q_is_on_q(&mod->fcxp_active_q, fcxp));
	list_del(&fcxp->qe);

	if (fcxp->req_rsp)
		list_add_tail(&fcxp->qe, &mod->fcxp_req_free_q);
	else
		list_add_tail(&fcxp->qe, &mod->fcxp_rsp_free_q);
}

static void
bfa_fcxp_null_comp(void *bfad_fcxp, struct bfa_fcxp_s *fcxp, void *cbarg,
		   bfa_status_t req_status, u32 rsp_len,
		   u32 resid_len, struct fchs_s *rsp_fchs)
{
	/* discarded fcxp completion */
}

static void
__bfa_fcxp_send_cbfn(void *cbarg, bfa_boolean_t complete)
{
	struct bfa_fcxp_s *fcxp = cbarg;

	if (complete) {
		fcxp->send_cbfn(fcxp->caller, fcxp, fcxp->send_cbarg,
				fcxp->rsp_status, fcxp->rsp_len,
				fcxp->residue_len, &fcxp->rsp_fchs);
	} else {
		bfa_fcxp_free(fcxp);
	}
}

static void
hal_fcxp_send_comp(struct bfa_s *bfa, struct bfi_fcxp_send_rsp_s *fcxp_rsp)
{
	struct bfa_fcxp_mod_s	*mod = BFA_FCXP_MOD(bfa);
	struct bfa_fcxp_s	*fcxp;
	u16		fcxp_tag = be16_to_cpu(fcxp_rsp->fcxp_tag);

	bfa_trc(bfa, fcxp_tag);

	fcxp_rsp->rsp_len = be32_to_cpu(fcxp_rsp->rsp_len);

	/*
	 * @todo f/w should not set residue to non-0 when everything
	 *	 is received.
	 */
	if (fcxp_rsp->req_status == BFA_STATUS_OK)
		fcxp_rsp->residue_len = 0;
	else
		fcxp_rsp->residue_len = be32_to_cpu(fcxp_rsp->residue_len);

	fcxp = BFA_FCXP_FROM_TAG(mod, fcxp_tag);

	WARN_ON(fcxp->send_cbfn == NULL);

	hal_fcxp_rx_plog(mod->bfa, fcxp, fcxp_rsp);

	if (fcxp->send_cbfn != NULL) {
		bfa_trc(mod->bfa, (NULL == fcxp->caller));
		if (fcxp->caller == NULL) {
			fcxp->send_cbfn(fcxp->caller, fcxp, fcxp->send_cbarg,
					fcxp_rsp->req_status, fcxp_rsp->rsp_len,
					fcxp_rsp->residue_len, &fcxp_rsp->fchs);
			/*
			 * fcxp automatically freed on return from the callback
			 */
			bfa_fcxp_free(fcxp);
		} else {
			fcxp->rsp_status = fcxp_rsp->req_status;
			fcxp->rsp_len = fcxp_rsp->rsp_len;
			fcxp->residue_len = fcxp_rsp->residue_len;
			fcxp->rsp_fchs = fcxp_rsp->fchs;

			bfa_cb_queue(bfa, &fcxp->hcb_qe,
					__bfa_fcxp_send_cbfn, fcxp);
		}
	} else {
		bfa_trc(bfa, (NULL == fcxp->send_cbfn));
	}
}

static void
hal_fcxp_tx_plog(struct bfa_s *bfa, u32 reqlen, struct bfa_fcxp_s *fcxp,
		 struct fchs_s *fchs)
{
	/*
	 * TODO: TX ox_id
	 */
	if (reqlen > 0) {
		if (fcxp->use_ireqbuf) {
			u32	pld_w0 =
				*((u32 *) BFA_FCXP_REQ_PLD(fcxp));

			bfa_plog_fchdr_and_pl(bfa->plog, BFA_PL_MID_HAL_FCXP,
					BFA_PL_EID_TX,
					reqlen + sizeof(struct fchs_s), fchs,
					pld_w0);
		} else {
			bfa_plog_fchdr(bfa->plog, BFA_PL_MID_HAL_FCXP,
					BFA_PL_EID_TX,
					reqlen + sizeof(struct fchs_s),
					fchs);
		}
	} else {
		bfa_plog_fchdr(bfa->plog, BFA_PL_MID_HAL_FCXP, BFA_PL_EID_TX,
			       reqlen + sizeof(struct fchs_s), fchs);
	}
}

static void
hal_fcxp_rx_plog(struct bfa_s *bfa, struct bfa_fcxp_s *fcxp,
		 struct bfi_fcxp_send_rsp_s *fcxp_rsp)
{
	if (fcxp_rsp->rsp_len > 0) {
		if (fcxp->use_irspbuf) {
			u32	pld_w0 =
				*((u32 *) BFA_FCXP_RSP_PLD(fcxp));

			bfa_plog_fchdr_and_pl(bfa->plog, BFA_PL_MID_HAL_FCXP,
					      BFA_PL_EID_RX,
					      (u16) fcxp_rsp->rsp_len,
					      &fcxp_rsp->fchs, pld_w0);
		} else {
			bfa_plog_fchdr(bfa->plog, BFA_PL_MID_HAL_FCXP,
				       BFA_PL_EID_RX,
				       (u16) fcxp_rsp->rsp_len,
				       &fcxp_rsp->fchs);
		}
	} else {
		bfa_plog_fchdr(bfa->plog, BFA_PL_MID_HAL_FCXP, BFA_PL_EID_RX,
			       (u16) fcxp_rsp->rsp_len, &fcxp_rsp->fchs);
	}
}

/*
 * Handler to resume sending fcxp when space in available in cpe queue.
 */
static void
bfa_fcxp_qresume(void *cbarg)
{
	struct bfa_fcxp_s		*fcxp = cbarg;
	struct bfa_s			*bfa = fcxp->fcxp_mod->bfa;
	struct bfi_fcxp_send_req_s	*send_req;

	fcxp->reqq_waiting = BFA_FALSE;
	send_req = bfa_reqq_next(bfa, BFA_REQQ_FCXP);
	bfa_fcxp_queue(fcxp, send_req);
}

/*
 * Queue fcxp send request to foimrware.
 */
static void
bfa_fcxp_queue(struct bfa_fcxp_s *fcxp, struct bfi_fcxp_send_req_s *send_req)
{
	struct bfa_s			*bfa = fcxp->fcxp_mod->bfa;
	struct bfa_fcxp_req_info_s	*reqi = &fcxp->req_info;
	struct bfa_fcxp_rsp_info_s	*rspi = &fcxp->rsp_info;
	struct bfa_rport_s		*rport = reqi->bfa_rport;

	bfi_h2i_set(send_req->mh, BFI_MC_FCXP, BFI_FCXP_H2I_SEND_REQ,
		    bfa_fn_lpu(bfa));

	send_req->fcxp_tag = cpu_to_be16(fcxp->fcxp_tag);
	if (rport) {
		send_req->rport_fw_hndl = rport->fw_handle;
		send_req->max_frmsz = cpu_to_be16(rport->rport_info.max_frmsz);
		if (send_req->max_frmsz == 0)
			send_req->max_frmsz = cpu_to_be16(FC_MAX_PDUSZ);
	} else {
		send_req->rport_fw_hndl = 0;
		send_req->max_frmsz = cpu_to_be16(FC_MAX_PDUSZ);
	}

	send_req->vf_id = cpu_to_be16(reqi->vf_id);
	send_req->lp_fwtag = bfa_lps_get_fwtag(bfa, reqi->lp_tag);
	send_req->class = reqi->class;
	send_req->rsp_timeout = rspi->rsp_timeout;
	send_req->cts = reqi->cts;
	send_req->fchs = reqi->fchs;

	send_req->req_len = cpu_to_be32(reqi->req_tot_len);
	send_req->rsp_maxlen = cpu_to_be32(rspi->rsp_maxlen);

	/*
	 * setup req sgles
	 */
	if (fcxp->use_ireqbuf == 1) {
		bfa_alen_set(&send_req->req_alen, reqi->req_tot_len,
					BFA_FCXP_REQ_PLD_PA(fcxp));
	} else {
		if (fcxp->nreq_sgles > 0) {
			WARN_ON(fcxp->nreq_sgles != 1);
			bfa_alen_set(&send_req->req_alen, reqi->req_tot_len,
				fcxp->req_sga_cbfn(fcxp->caller, 0));
		} else {
			WARN_ON(reqi->req_tot_len != 0);
			bfa_alen_set(&send_req->rsp_alen, 0, 0);
		}
	}

	/*
	 * setup rsp sgles
	 */
	if (fcxp->use_irspbuf == 1) {
		WARN_ON(rspi->rsp_maxlen > BFA_FCXP_MAX_LBUF_SZ);

		bfa_alen_set(&send_req->rsp_alen, rspi->rsp_maxlen,
					BFA_FCXP_RSP_PLD_PA(fcxp));
	} else {
		if (fcxp->nrsp_sgles > 0) {
			WARN_ON(fcxp->nrsp_sgles != 1);
			bfa_alen_set(&send_req->rsp_alen, rspi->rsp_maxlen,
				fcxp->rsp_sga_cbfn(fcxp->caller, 0));

		} else {
			WARN_ON(rspi->rsp_maxlen != 0);
			bfa_alen_set(&send_req->rsp_alen, 0, 0);
		}
	}

	hal_fcxp_tx_plog(bfa, reqi->req_tot_len, fcxp, &reqi->fchs);

	bfa_reqq_produce(bfa, BFA_REQQ_FCXP, send_req->mh);

	bfa_trc(bfa, bfa_reqq_pi(bfa, BFA_REQQ_FCXP));
	bfa_trc(bfa, bfa_reqq_ci(bfa, BFA_REQQ_FCXP));
}

/*
 * Allocate an FCXP instance to send a response or to send a request
 * that has a response. Request/response buffers are allocated by caller.
 *
 * @param[in]	bfa		BFA bfa instance
 * @param[in]	nreq_sgles	Number of SG elements required for request
 *				buffer. 0, if fcxp internal buffers are	used.
 *				Use bfa_fcxp_get_reqbuf() to get the
 *				internal req buffer.
 * @param[in]	req_sgles	SG elements describing request buffer. Will be
 *				copied in by BFA and hence can be freed on
 *				return from this function.
 * @param[in]	get_req_sga	function ptr to be called to get a request SG
 *				Address (given the sge index).
 * @param[in]	get_req_sglen	function ptr to be called to get a request SG
 *				len (given the sge index).
 * @param[in]	get_rsp_sga	function ptr to be called to get a response SG
 *				Address (given the sge index).
 * @param[in]	get_rsp_sglen	function ptr to be called to get a response SG
 *				len (given the sge index).
 * @param[in]	req		Allocated FCXP is used to send req or rsp?
 *				request - BFA_TRUE, response - BFA_FALSE
 *
 * @return FCXP instance. NULL on failure.
 */
struct bfa_fcxp_s *
bfa_fcxp_req_rsp_alloc(void *caller, struct bfa_s *bfa, int nreq_sgles,
		int nrsp_sgles, bfa_fcxp_get_sgaddr_t req_sga_cbfn,
		bfa_fcxp_get_sglen_t req_sglen_cbfn,
		bfa_fcxp_get_sgaddr_t rsp_sga_cbfn,
		bfa_fcxp_get_sglen_t rsp_sglen_cbfn, bfa_boolean_t req)
{
	struct bfa_fcxp_s *fcxp = NULL;

	WARN_ON(bfa == NULL);

	fcxp = bfa_fcxp_get(BFA_FCXP_MOD(bfa), req);
	if (fcxp == NULL)
		return NULL;

	bfa_trc(bfa, fcxp->fcxp_tag);

	bfa_fcxp_init(fcxp, caller, bfa, nreq_sgles, nrsp_sgles, req_sga_cbfn,
			req_sglen_cbfn, rsp_sga_cbfn, rsp_sglen_cbfn);

	return fcxp;
}

/*
 * Get the internal request buffer pointer
 *
 * @param[in]	fcxp	BFA fcxp pointer
 *
 * @return		pointer to the internal request buffer
 */
void *
bfa_fcxp_get_reqbuf(struct bfa_fcxp_s *fcxp)
{
	struct bfa_fcxp_mod_s *mod = fcxp->fcxp_mod;
	void	*reqbuf;

	WARN_ON(fcxp->use_ireqbuf != 1);
	reqbuf = bfa_mem_get_dmabuf_kva(mod, fcxp->fcxp_tag,
				mod->req_pld_sz + mod->rsp_pld_sz);
	return reqbuf;
}

u32
bfa_fcxp_get_reqbufsz(struct bfa_fcxp_s *fcxp)
{
	struct bfa_fcxp_mod_s *mod = fcxp->fcxp_mod;

	return mod->req_pld_sz;
}

/*
 * Get the internal response buffer pointer
 *
 * @param[in]	fcxp	BFA fcxp pointer
 *
 * @return		pointer to the internal request buffer
 */
void *
bfa_fcxp_get_rspbuf(struct bfa_fcxp_s *fcxp)
{
	struct bfa_fcxp_mod_s *mod = fcxp->fcxp_mod;
	void	*fcxp_buf;

	WARN_ON(fcxp->use_irspbuf != 1);

	fcxp_buf = bfa_mem_get_dmabuf_kva(mod, fcxp->fcxp_tag,
				mod->req_pld_sz + mod->rsp_pld_sz);

	/* fcxp_buf = req_buf + rsp_buf :- add req_buf_sz to get to rsp_buf */
	return ((u8 *) fcxp_buf) + mod->req_pld_sz;
}

/*
 * Free the BFA FCXP
 *
 * @param[in]	fcxp			BFA fcxp pointer
 *
 * @return		void
 */
void
bfa_fcxp_free(struct bfa_fcxp_s *fcxp)
{
	struct bfa_fcxp_mod_s *mod = fcxp->fcxp_mod;

	WARN_ON(fcxp == NULL);
	bfa_trc(mod->bfa, fcxp->fcxp_tag);
	bfa_fcxp_put(fcxp);
}

/*
 * Send a FCXP request
 *
 * @param[in]	fcxp	BFA fcxp pointer
 * @param[in]	rport	BFA rport pointer. Could be left NULL for WKA rports
 * @param[in]	vf_id	virtual Fabric ID
 * @param[in]	lp_tag	lport tag
 * @param[in]	cts	use Continuous sequence
 * @param[in]	cos	fc Class of Service
 * @param[in]	reqlen	request length, does not include FCHS length
 * @param[in]	fchs	fc Header Pointer. The header content will be copied
 *			in by BFA.
 *
 * @param[in]	cbfn	call back function to be called on receiving
 *								the response
 * @param[in]	cbarg	arg for cbfn
 * @param[in]	rsp_timeout
 *			response timeout
 *
 * @return		bfa_status_t
 */
void
bfa_fcxp_send(struct bfa_fcxp_s *fcxp, struct bfa_rport_s *rport,
	      u16 vf_id, u8 lp_tag, bfa_boolean_t cts, enum fc_cos cos,
	      u32 reqlen, struct fchs_s *fchs, bfa_cb_fcxp_send_t cbfn,
	      void *cbarg, u32 rsp_maxlen, u8 rsp_timeout)
{
	struct bfa_s			*bfa  = fcxp->fcxp_mod->bfa;
	struct bfa_fcxp_req_info_s	*reqi = &fcxp->req_info;
	struct bfa_fcxp_rsp_info_s	*rspi = &fcxp->rsp_info;
	struct bfi_fcxp_send_req_s	*send_req;

	bfa_trc(bfa, fcxp->fcxp_tag);

	/*
	 * setup request/response info
	 */
	reqi->bfa_rport = rport;
	reqi->vf_id = vf_id;
	reqi->lp_tag = lp_tag;
	reqi->class = cos;
	rspi->rsp_timeout = rsp_timeout;
	reqi->cts = cts;
	reqi->fchs = *fchs;
	reqi->req_tot_len = reqlen;
	rspi->rsp_maxlen = rsp_maxlen;
	fcxp->send_cbfn = cbfn ? cbfn : bfa_fcxp_null_comp;
	fcxp->send_cbarg = cbarg;

	/*
	 * If no room in CPE queue, wait for space in request queue
	 */
	send_req = bfa_reqq_next(bfa, BFA_REQQ_FCXP);
	if (!send_req) {
		bfa_trc(bfa, fcxp->fcxp_tag);
		fcxp->reqq_waiting = BFA_TRUE;
		bfa_reqq_wait(bfa, BFA_REQQ_FCXP, &fcxp->reqq_wqe);
		return;
	}

	bfa_fcxp_queue(fcxp, send_req);
}

/*
 * Abort a BFA FCXP
 *
 * @param[in]	fcxp	BFA fcxp pointer
 *
 * @return		void
 */
bfa_status_t
bfa_fcxp_abort(struct bfa_fcxp_s *fcxp)
{
	bfa_trc(fcxp->fcxp_mod->bfa, fcxp->fcxp_tag);
	WARN_ON(1);
	return BFA_STATUS_OK;
}

void
bfa_fcxp_req_rsp_alloc_wait(struct bfa_s *bfa, struct bfa_fcxp_wqe_s *wqe,
	       bfa_fcxp_alloc_cbfn_t alloc_cbfn, void *alloc_cbarg,
	       void *caller, int nreq_sgles,
	       int nrsp_sgles, bfa_fcxp_get_sgaddr_t req_sga_cbfn,
	       bfa_fcxp_get_sglen_t req_sglen_cbfn,
	       bfa_fcxp_get_sgaddr_t rsp_sga_cbfn,
	       bfa_fcxp_get_sglen_t rsp_sglen_cbfn, bfa_boolean_t req)
{
	struct bfa_fcxp_mod_s *mod = BFA_FCXP_MOD(bfa);

	if (req)
		WARN_ON(!list_empty(&mod->fcxp_req_free_q));
	else
		WARN_ON(!list_empty(&mod->fcxp_rsp_free_q));

	wqe->alloc_cbfn = alloc_cbfn;
	wqe->alloc_cbarg = alloc_cbarg;
	wqe->caller = caller;
	wqe->bfa = bfa;
	wqe->nreq_sgles = nreq_sgles;
	wqe->nrsp_sgles = nrsp_sgles;
	wqe->req_sga_cbfn = req_sga_cbfn;
	wqe->req_sglen_cbfn = req_sglen_cbfn;
	wqe->rsp_sga_cbfn = rsp_sga_cbfn;
	wqe->rsp_sglen_cbfn = rsp_sglen_cbfn;

	if (req)
		list_add_tail(&wqe->qe, &mod->req_wait_q);
	else
		list_add_tail(&wqe->qe, &mod->rsp_wait_q);
}

void
bfa_fcxp_walloc_cancel(struct bfa_s *bfa, struct bfa_fcxp_wqe_s *wqe)
{
	struct bfa_fcxp_mod_s *mod = BFA_FCXP_MOD(bfa);

	WARN_ON(!bfa_q_is_on_q(&mod->req_wait_q, wqe) ||
		!bfa_q_is_on_q(&mod->rsp_wait_q, wqe));
	list_del(&wqe->qe);
}

void
bfa_fcxp_discard(struct bfa_fcxp_s *fcxp)
{
	/*
	 * If waiting for room in request queue, cancel reqq wait
	 * and free fcxp.
	 */
	if (fcxp->reqq_waiting) {
		fcxp->reqq_waiting = BFA_FALSE;
		bfa_reqq_wcancel(&fcxp->reqq_wqe);
		bfa_fcxp_free(fcxp);
		return;
	}

	fcxp->send_cbfn = bfa_fcxp_null_comp;
}

void
bfa_fcxp_isr(struct bfa_s *bfa, struct bfi_msg_s *msg)
{
	switch (msg->mhdr.msg_id) {
	case BFI_FCXP_I2H_SEND_RSP:
		hal_fcxp_send_comp(bfa, (struct bfi_fcxp_send_rsp_s *) msg);
		break;

	default:
		bfa_trc(bfa, msg->mhdr.msg_id);
		WARN_ON(1);
	}
}

u32
bfa_fcxp_get_maxrsp(struct bfa_s *bfa)
{
	struct bfa_fcxp_mod_s *mod = BFA_FCXP_MOD(bfa);

	return mod->rsp_pld_sz;
}

void
bfa_fcxp_res_recfg(struct bfa_s *bfa, u16 num_fcxp_fw)
{
	struct bfa_fcxp_mod_s	*mod = BFA_FCXP_MOD(bfa);
	struct list_head	*qe;
	int	i;

	for (i = 0; i < (mod->num_fcxps - num_fcxp_fw); i++) {
		if (i < ((mod->num_fcxps - num_fcxp_fw) / 2)) {
			bfa_q_deq_tail(&mod->fcxp_req_free_q, &qe);
			list_add_tail(qe, &mod->fcxp_req_unused_q);
		} else {
			bfa_q_deq_tail(&mod->fcxp_rsp_free_q, &qe);
			list_add_tail(qe, &mod->fcxp_rsp_unused_q);
		}
	}
}

/*
 *  BFA LPS state machine functions
 */

/*
 * Init state -- no login
 */
static void
bfa_lps_sm_init(struct bfa_lps_s *lps, enum bfa_lps_event event)
{
	bfa_trc(lps->bfa, lps->bfa_tag);
	bfa_trc(lps->bfa, event);

	switch (event) {
	case BFA_LPS_SM_LOGIN:
		if (bfa_reqq_full(lps->bfa, lps->reqq)) {
			bfa_sm_set_state(lps, bfa_lps_sm_loginwait);
			bfa_reqq_wait(lps->bfa, lps->reqq, &lps->wqe);
		} else {
			bfa_sm_set_state(lps, bfa_lps_sm_login);
			bfa_lps_send_login(lps);
		}

		if (lps->fdisc)
			bfa_plog_str(lps->bfa->plog, BFA_PL_MID_LPS,
				BFA_PL_EID_LOGIN, 0, "FDISC Request");
		else
			bfa_plog_str(lps->bfa->plog, BFA_PL_MID_LPS,
				BFA_PL_EID_LOGIN, 0, "FLOGI Request");
		break;

	case BFA_LPS_SM_LOGOUT:
		bfa_lps_logout_comp(lps);
		break;

	case BFA_LPS_SM_DELETE:
		bfa_lps_free(lps);
		break;

	case BFA_LPS_SM_RX_CVL:
	case BFA_LPS_SM_OFFLINE:
		break;

	case BFA_LPS_SM_FWRSP:
		/*
		 * Could happen when fabric detects loopback and discards
		 * the lps request. Fw will eventually sent out the timeout
		 * Just ignore
		 */
		break;
	case BFA_LPS_SM_SET_N2N_PID:
		/*
		 * When topology is set to loop, bfa_lps_set_n2n_pid() sends
		 * this event. Ignore this event.
		 */
		break;

	default:
		bfa_sm_fault(lps->bfa, event);
	}
}

/*
 * login is in progress -- awaiting response from firmware
 */
static void
bfa_lps_sm_login(struct bfa_lps_s *lps, enum bfa_lps_event event)
{
	bfa_trc(lps->bfa, lps->bfa_tag);
	bfa_trc(lps->bfa, event);

	switch (event) {
	case BFA_LPS_SM_FWRSP:
		if (lps->status == BFA_STATUS_OK) {
			bfa_sm_set_state(lps, bfa_lps_sm_online);
			if (lps->fdisc)
				bfa_plog_str(lps->bfa->plog, BFA_PL_MID_LPS,
					BFA_PL_EID_LOGIN, 0, "FDISC Accept");
			else
				bfa_plog_str(lps->bfa->plog, BFA_PL_MID_LPS,
					BFA_PL_EID_LOGIN, 0, "FLOGI Accept");
			/* If N2N, send the assigned PID to FW */
			bfa_trc(lps->bfa, lps->fport);
			bfa_trc(lps->bfa, lps->lp_pid);

			if (!lps->fport && lps->lp_pid)
				bfa_sm_send_event(lps, BFA_LPS_SM_SET_N2N_PID);
		} else {
			bfa_sm_set_state(lps, bfa_lps_sm_init);
			if (lps->fdisc)
				bfa_plog_str(lps->bfa->plog, BFA_PL_MID_LPS,
					BFA_PL_EID_LOGIN, 0,
					"FDISC Fail (RJT or timeout)");
			else
				bfa_plog_str(lps->bfa->plog, BFA_PL_MID_LPS,
					BFA_PL_EID_LOGIN, 0,
					"FLOGI Fail (RJT or timeout)");
		}
		bfa_lps_login_comp(lps);
		break;

	case BFA_LPS_SM_OFFLINE:
	case BFA_LPS_SM_DELETE:
		bfa_sm_set_state(lps, bfa_lps_sm_init);
		break;

	case BFA_LPS_SM_SET_N2N_PID:
		bfa_trc(lps->bfa, lps->fport);
		bfa_trc(lps->bfa, lps->lp_pid);
		break;

	default:
		bfa_sm_fault(lps->bfa, event);
	}
}

/*
 * login pending - awaiting space in request queue
 */
static void
bfa_lps_sm_loginwait(struct bfa_lps_s *lps, enum bfa_lps_event event)
{
	bfa_trc(lps->bfa, lps->bfa_tag);
	bfa_trc(lps->bfa, event);

	switch (event) {
	case BFA_LPS_SM_RESUME:
		bfa_sm_set_state(lps, bfa_lps_sm_login);
		bfa_lps_send_login(lps);
		break;

	case BFA_LPS_SM_OFFLINE:
	case BFA_LPS_SM_DELETE:
		bfa_sm_set_state(lps, bfa_lps_sm_init);
		bfa_reqq_wcancel(&lps->wqe);
		break;

	case BFA_LPS_SM_RX_CVL:
		/*
		 * Login was not even sent out; so when getting out
		 * of this state, it will appear like a login retry
		 * after Clear virtual link
		 */
		break;

	default:
		bfa_sm_fault(lps->bfa, event);
	}
}

/*
 * login complete
 */
static void
bfa_lps_sm_online(struct bfa_lps_s *lps, enum bfa_lps_event event)
{
	bfa_trc(lps->bfa, lps->bfa_tag);
	bfa_trc(lps->bfa, event);

	switch (event) {
	case BFA_LPS_SM_LOGOUT:
		if (bfa_reqq_full(lps->bfa, lps->reqq)) {
			bfa_sm_set_state(lps, bfa_lps_sm_logowait);
			bfa_reqq_wait(lps->bfa, lps->reqq, &lps->wqe);
		} else {
			bfa_sm_set_state(lps, bfa_lps_sm_logout);
			bfa_lps_send_logout(lps);
		}
		bfa_plog_str(lps->bfa->plog, BFA_PL_MID_LPS,
			BFA_PL_EID_LOGO, 0, "Logout");
		break;

	case BFA_LPS_SM_RX_CVL:
		bfa_sm_set_state(lps, bfa_lps_sm_init);

		/* Let the vport module know about this event */
		bfa_lps_cvl_event(lps);
		bfa_plog_str(lps->bfa->plog, BFA_PL_MID_LPS,
			BFA_PL_EID_FIP_FCF_CVL, 0, "FCF Clear Virt. Link Rx");
		break;

	case BFA_LPS_SM_SET_N2N_PID:
		if (bfa_reqq_full(lps->bfa, lps->reqq)) {
			bfa_sm_set_state(lps, bfa_lps_sm_online_n2n_pid_wait);
			bfa_reqq_wait(lps->bfa, lps->reqq, &lps->wqe);
		} else
			bfa_lps_send_set_n2n_pid(lps);
		break;

	case BFA_LPS_SM_OFFLINE:
	case BFA_LPS_SM_DELETE:
		bfa_sm_set_state(lps, bfa_lps_sm_init);
		break;

	default:
		bfa_sm_fault(lps->bfa, event);
	}
}

/*
 * login complete
 */
static void
bfa_lps_sm_online_n2n_pid_wait(struct bfa_lps_s *lps, enum bfa_lps_event event)
{
	bfa_trc(lps->bfa, lps->bfa_tag);
	bfa_trc(lps->bfa, event);

	switch (event) {
	case BFA_LPS_SM_RESUME:
		bfa_sm_set_state(lps, bfa_lps_sm_online);
		bfa_lps_send_set_n2n_pid(lps);
		break;

	case BFA_LPS_SM_LOGOUT:
		bfa_sm_set_state(lps, bfa_lps_sm_logowait);
		bfa_plog_str(lps->bfa->plog, BFA_PL_MID_LPS,
			BFA_PL_EID_LOGO, 0, "Logout");
		break;

	case BFA_LPS_SM_RX_CVL:
		bfa_sm_set_state(lps, bfa_lps_sm_init);
		bfa_reqq_wcancel(&lps->wqe);

		/* Let the vport module know about this event */
		bfa_lps_cvl_event(lps);
		bfa_plog_str(lps->bfa->plog, BFA_PL_MID_LPS,
			BFA_PL_EID_FIP_FCF_CVL, 0, "FCF Clear Virt. Link Rx");
		break;

	case BFA_LPS_SM_OFFLINE:
	case BFA_LPS_SM_DELETE:
		bfa_sm_set_state(lps, bfa_lps_sm_init);
		bfa_reqq_wcancel(&lps->wqe);
		break;

	default:
		bfa_sm_fault(lps->bfa, event);
	}
}

/*
 * logout in progress - awaiting firmware response
 */
static void
bfa_lps_sm_logout(struct bfa_lps_s *lps, enum bfa_lps_event event)
{
	bfa_trc(lps->bfa, lps->bfa_tag);
	bfa_trc(lps->bfa, event);

	switch (event) {
	case BFA_LPS_SM_FWRSP:
	case BFA_LPS_SM_OFFLINE:
		bfa_sm_set_state(lps, bfa_lps_sm_init);
		bfa_lps_logout_comp(lps);
		break;

	case BFA_LPS_SM_DELETE:
		bfa_sm_set_state(lps, bfa_lps_sm_init);
		break;

	default:
		bfa_sm_fault(lps->bfa, event);
	}
}

/*
 * logout pending -- awaiting space in request queue
 */
static void
bfa_lps_sm_logowait(struct bfa_lps_s *lps, enum bfa_lps_event event)
{
	bfa_trc(lps->bfa, lps->bfa_tag);
	bfa_trc(lps->bfa, event);

	switch (event) {
	case BFA_LPS_SM_RESUME:
		bfa_sm_set_state(lps, bfa_lps_sm_logout);
		bfa_lps_send_logout(lps);
		break;

	case BFA_LPS_SM_OFFLINE:
	case BFA_LPS_SM_DELETE:
		bfa_sm_set_state(lps, bfa_lps_sm_init);
		bfa_reqq_wcancel(&lps->wqe);
		break;

	default:
		bfa_sm_fault(lps->bfa, event);
	}
}



/*
 *  lps_pvt BFA LPS private functions
 */

/*
 * return memory requirement
 */
static void
bfa_lps_meminfo(struct bfa_iocfc_cfg_s *cfg, struct bfa_meminfo_s *minfo,
		struct bfa_s *bfa)
{
	struct bfa_mem_kva_s *lps_kva = BFA_MEM_LPS_KVA(bfa);

	if (cfg->drvcfg.min_cfg)
		bfa_mem_kva_setup(minfo, lps_kva,
			sizeof(struct bfa_lps_s) * BFA_LPS_MIN_LPORTS);
	else
		bfa_mem_kva_setup(minfo, lps_kva,
			sizeof(struct bfa_lps_s) * BFA_LPS_MAX_LPORTS);
}

/*
 * bfa module attach at initialization time
 */
static void
bfa_lps_attach(struct bfa_s *bfa, void *bfad, struct bfa_iocfc_cfg_s *cfg,
	struct bfa_pcidev_s *pcidev)
{
	struct bfa_lps_mod_s	*mod = BFA_LPS_MOD(bfa);
	struct bfa_lps_s	*lps;
	int			i;

	mod->num_lps = BFA_LPS_MAX_LPORTS;
	if (cfg->drvcfg.min_cfg)
		mod->num_lps = BFA_LPS_MIN_LPORTS;
	else
		mod->num_lps = BFA_LPS_MAX_LPORTS;
	mod->lps_arr = lps = (struct bfa_lps_s *) bfa_mem_kva_curp(mod);

	bfa_mem_kva_curp(mod) += mod->num_lps * sizeof(struct bfa_lps_s);

	INIT_LIST_HEAD(&mod->lps_free_q);
	INIT_LIST_HEAD(&mod->lps_active_q);
	INIT_LIST_HEAD(&mod->lps_login_q);

	for (i = 0; i < mod->num_lps; i++, lps++) {
		lps->bfa	= bfa;
		lps->bfa_tag	= (u8) i;
		lps->reqq	= BFA_REQQ_LPS;
		bfa_reqq_winit(&lps->wqe, bfa_lps_reqq_resume, lps);
		list_add_tail(&lps->qe, &mod->lps_free_q);
	}
}

static void
bfa_lps_detach(struct bfa_s *bfa)
{
}

static void
bfa_lps_start(struct bfa_s *bfa)
{
}

static void
bfa_lps_stop(struct bfa_s *bfa)
{
}

/*
 * IOC in disabled state -- consider all lps offline
 */
static void
bfa_lps_iocdisable(struct bfa_s *bfa)
{
	struct bfa_lps_mod_s	*mod = BFA_LPS_MOD(bfa);
	struct bfa_lps_s	*lps;
	struct list_head		*qe, *qen;

	list_for_each_safe(qe, qen, &mod->lps_active_q) {
		lps = (struct bfa_lps_s *) qe;
		bfa_sm_send_event(lps, BFA_LPS_SM_OFFLINE);
	}
	list_for_each_safe(qe, qen, &mod->lps_login_q) {
		lps = (struct bfa_lps_s *) qe;
		bfa_sm_send_event(lps, BFA_LPS_SM_OFFLINE);
	}
	list_splice_tail_init(&mod->lps_login_q, &mod->lps_active_q);
}

/*
 * Firmware login response
 */
static void
bfa_lps_login_rsp(struct bfa_s *bfa, struct bfi_lps_login_rsp_s *rsp)
{
	struct bfa_lps_mod_s	*mod = BFA_LPS_MOD(bfa);
	struct bfa_lps_s	*lps;

	WARN_ON(rsp->bfa_tag >= mod->num_lps);
	lps = BFA_LPS_FROM_TAG(mod, rsp->bfa_tag);

	lps->status = rsp->status;
	switch (rsp->status) {
	case BFA_STATUS_OK:
		lps->fw_tag	= rsp->fw_tag;
		lps->fport	= rsp->f_port;
		if (lps->fport)
			lps->lp_pid = rsp->lp_pid;
		lps->npiv_en	= rsp->npiv_en;
		lps->pr_bbcred	= be16_to_cpu(rsp->bb_credit);
		lps->pr_pwwn	= rsp->port_name;
		lps->pr_nwwn	= rsp->node_name;
		lps->auth_req	= rsp->auth_req;
		lps->lp_mac	= rsp->lp_mac;
		lps->brcd_switch = rsp->brcd_switch;
		lps->fcf_mac	= rsp->fcf_mac;

		break;

	case BFA_STATUS_FABRIC_RJT:
		lps->lsrjt_rsn = rsp->lsrjt_rsn;
		lps->lsrjt_expl = rsp->lsrjt_expl;

		break;

	case BFA_STATUS_EPROTOCOL:
		lps->ext_status = rsp->ext_status;

		break;

	case BFA_STATUS_VPORT_MAX:
		if (rsp->ext_status)
			bfa_lps_no_res(lps, rsp->ext_status);
		break;

	default:
		/* Nothing to do with other status */
		break;
	}

	list_del(&lps->qe);
	list_add_tail(&lps->qe, &mod->lps_active_q);
	bfa_sm_send_event(lps, BFA_LPS_SM_FWRSP);
}

static void
bfa_lps_no_res(struct bfa_lps_s *first_lps, u8 count)
{
	struct bfa_s		*bfa = first_lps->bfa;
	struct bfa_lps_mod_s	*mod = BFA_LPS_MOD(bfa);
	struct list_head	*qe, *qe_next;
	struct bfa_lps_s	*lps;

	bfa_trc(bfa, count);

	qe = bfa_q_next(first_lps);

	while (count && qe) {
		qe_next = bfa_q_next(qe);
		lps = (struct bfa_lps_s *)qe;
		bfa_trc(bfa, lps->bfa_tag);
		lps->status = first_lps->status;
		list_del(&lps->qe);
		list_add_tail(&lps->qe, &mod->lps_active_q);
		bfa_sm_send_event(lps, BFA_LPS_SM_FWRSP);
		qe = qe_next;
		count--;
	}
}

/*
 * Firmware logout response
 */
static void
bfa_lps_logout_rsp(struct bfa_s *bfa, struct bfi_lps_logout_rsp_s *rsp)
{
	struct bfa_lps_mod_s	*mod = BFA_LPS_MOD(bfa);
	struct bfa_lps_s	*lps;

	WARN_ON(rsp->bfa_tag >= mod->num_lps);
	lps = BFA_LPS_FROM_TAG(mod, rsp->bfa_tag);

	bfa_sm_send_event(lps, BFA_LPS_SM_FWRSP);
}

/*
 * Firmware received a Clear virtual link request (for FCoE)
 */
static void
bfa_lps_rx_cvl_event(struct bfa_s *bfa, struct bfi_lps_cvl_event_s *cvl)
{
	struct bfa_lps_mod_s	*mod = BFA_LPS_MOD(bfa);
	struct bfa_lps_s	*lps;

	lps = BFA_LPS_FROM_TAG(mod, cvl->bfa_tag);

	bfa_sm_send_event(lps, BFA_LPS_SM_RX_CVL);
}

/*
 * Space is available in request queue, resume queueing request to firmware.
 */
static void
bfa_lps_reqq_resume(void *lps_arg)
{
	struct bfa_lps_s	*lps = lps_arg;

	bfa_sm_send_event(lps, BFA_LPS_SM_RESUME);
}

/*
 * lps is freed -- triggered by vport delete
 */
static void
bfa_lps_free(struct bfa_lps_s *lps)
{
	struct bfa_lps_mod_s	*mod = BFA_LPS_MOD(lps->bfa);

	lps->lp_pid = 0;
	list_del(&lps->qe);
	list_add_tail(&lps->qe, &mod->lps_free_q);
}

/*
 * send login request to firmware
 */
static void
bfa_lps_send_login(struct bfa_lps_s *lps)
{
	struct bfa_lps_mod_s	*mod = BFA_LPS_MOD(lps->bfa);
	struct bfi_lps_login_req_s	*m;

	m = bfa_reqq_next(lps->bfa, lps->reqq);
	WARN_ON(!m);

	bfi_h2i_set(m->mh, BFI_MC_LPS, BFI_LPS_H2I_LOGIN_REQ,
		bfa_fn_lpu(lps->bfa));

	m->bfa_tag	= lps->bfa_tag;
	m->alpa		= lps->alpa;
	m->pdu_size	= cpu_to_be16(lps->pdusz);
	m->pwwn		= lps->pwwn;
	m->nwwn		= lps->nwwn;
	m->fdisc	= lps->fdisc;
	m->auth_en	= lps->auth_en;

	bfa_reqq_produce(lps->bfa, lps->reqq, m->mh);
	list_del(&lps->qe);
	list_add_tail(&lps->qe, &mod->lps_login_q);
}

/*
 * send logout request to firmware
 */
static void
bfa_lps_send_logout(struct bfa_lps_s *lps)
{
	struct bfi_lps_logout_req_s *m;

	m = bfa_reqq_next(lps->bfa, lps->reqq);
	WARN_ON(!m);

	bfi_h2i_set(m->mh, BFI_MC_LPS, BFI_LPS_H2I_LOGOUT_REQ,
		bfa_fn_lpu(lps->bfa));

	m->fw_tag = lps->fw_tag;
	m->port_name = lps->pwwn;
	bfa_reqq_produce(lps->bfa, lps->reqq, m->mh);
}

/*
 * send n2n pid set request to firmware
 */
static void
bfa_lps_send_set_n2n_pid(struct bfa_lps_s *lps)
{
	struct bfi_lps_n2n_pid_req_s *m;

	m = bfa_reqq_next(lps->bfa, lps->reqq);
	WARN_ON(!m);

	bfi_h2i_set(m->mh, BFI_MC_LPS, BFI_LPS_H2I_N2N_PID_REQ,
		bfa_fn_lpu(lps->bfa));

	m->fw_tag = lps->fw_tag;
	m->lp_pid = lps->lp_pid;
	bfa_reqq_produce(lps->bfa, lps->reqq, m->mh);
}

/*
 * Indirect login completion handler for non-fcs
 */
static void
bfa_lps_login_comp_cb(void *arg, bfa_boolean_t complete)
{
	struct bfa_lps_s *lps	= arg;

	if (!complete)
		return;

	if (lps->fdisc)
		bfa_cb_lps_fdisc_comp(lps->bfa->bfad, lps->uarg, lps->status);
	else
		bfa_cb_lps_flogi_comp(lps->bfa->bfad, lps->uarg, lps->status);
}

/*
 * Login completion handler -- direct call for fcs, queue for others
 */
static void
bfa_lps_login_comp(struct bfa_lps_s *lps)
{
	if (!lps->bfa->fcs) {
		bfa_cb_queue(lps->bfa, &lps->hcb_qe, bfa_lps_login_comp_cb,
			lps);
		return;
	}

	if (lps->fdisc)
		bfa_cb_lps_fdisc_comp(lps->bfa->bfad, lps->uarg, lps->status);
	else
		bfa_cb_lps_flogi_comp(lps->bfa->bfad, lps->uarg, lps->status);
}

/*
 * Indirect logout completion handler for non-fcs
 */
static void
bfa_lps_logout_comp_cb(void *arg, bfa_boolean_t complete)
{
	struct bfa_lps_s *lps	= arg;

	if (!complete)
		return;

	if (lps->fdisc)
		bfa_cb_lps_fdisclogo_comp(lps->bfa->bfad, lps->uarg);
	else
		bfa_cb_lps_flogo_comp(lps->bfa->bfad, lps->uarg);
}

/*
 * Logout completion handler -- direct call for fcs, queue for others
 */
static void
bfa_lps_logout_comp(struct bfa_lps_s *lps)
{
	if (!lps->bfa->fcs) {
		bfa_cb_queue(lps->bfa, &lps->hcb_qe, bfa_lps_logout_comp_cb,
			lps);
		return;
	}
	if (lps->fdisc)
		bfa_cb_lps_fdisclogo_comp(lps->bfa->bfad, lps->uarg);
}

/*
 * Clear virtual link completion handler for non-fcs
 */
static void
bfa_lps_cvl_event_cb(void *arg, bfa_boolean_t complete)
{
	struct bfa_lps_s *lps	= arg;

	if (!complete)
		return;

	/* Clear virtual link to base port will result in link down */
	if (lps->fdisc)
		bfa_cb_lps_cvl_event(lps->bfa->bfad, lps->uarg);
}

/*
 * Received Clear virtual link event --direct call for fcs,
 * queue for others
 */
static void
bfa_lps_cvl_event(struct bfa_lps_s *lps)
{
	if (!lps->bfa->fcs) {
		bfa_cb_queue(lps->bfa, &lps->hcb_qe, bfa_lps_cvl_event_cb,
			lps);
		return;
	}

	/* Clear virtual link to base port will result in link down */
	if (lps->fdisc)
		bfa_cb_lps_cvl_event(lps->bfa->bfad, lps->uarg);
}



/*
 *  lps_public BFA LPS public functions
 */

u32
bfa_lps_get_max_vport(struct bfa_s *bfa)
{
	if (bfa_ioc_devid(&bfa->ioc) == BFA_PCI_DEVICE_ID_CT)
		return BFA_LPS_MAX_VPORTS_SUPP_CT;
	else
		return BFA_LPS_MAX_VPORTS_SUPP_CB;
}

/*
 * Allocate a lport srvice tag.
 */
struct bfa_lps_s  *
bfa_lps_alloc(struct bfa_s *bfa)
{
	struct bfa_lps_mod_s	*mod = BFA_LPS_MOD(bfa);
	struct bfa_lps_s	*lps = NULL;

	bfa_q_deq(&mod->lps_free_q, &lps);

	if (lps == NULL)
		return NULL;

	list_add_tail(&lps->qe, &mod->lps_active_q);

	bfa_sm_set_state(lps, bfa_lps_sm_init);
	return lps;
}

/*
 * Free lport service tag. This can be called anytime after an alloc.
 * No need to wait for any pending login/logout completions.
 */
void
bfa_lps_delete(struct bfa_lps_s *lps)
{
	bfa_sm_send_event(lps, BFA_LPS_SM_DELETE);
}

/*
 * Initiate a lport login.
 */
void
bfa_lps_flogi(struct bfa_lps_s *lps, void *uarg, u8 alpa, u16 pdusz,
	wwn_t pwwn, wwn_t nwwn, bfa_boolean_t auth_en)
{
	lps->uarg	= uarg;
	lps->alpa	= alpa;
	lps->pdusz	= pdusz;
	lps->pwwn	= pwwn;
	lps->nwwn	= nwwn;
	lps->fdisc	= BFA_FALSE;
	lps->auth_en	= auth_en;
	bfa_sm_send_event(lps, BFA_LPS_SM_LOGIN);
}

/*
 * Initiate a lport fdisc login.
 */
void
bfa_lps_fdisc(struct bfa_lps_s *lps, void *uarg, u16 pdusz, wwn_t pwwn,
	wwn_t nwwn)
{
	lps->uarg	= uarg;
	lps->alpa	= 0;
	lps->pdusz	= pdusz;
	lps->pwwn	= pwwn;
	lps->nwwn	= nwwn;
	lps->fdisc	= BFA_TRUE;
	lps->auth_en	= BFA_FALSE;
	bfa_sm_send_event(lps, BFA_LPS_SM_LOGIN);
}


/*
 * Initiate a lport FDSIC logout.
 */
void
bfa_lps_fdisclogo(struct bfa_lps_s *lps)
{
	bfa_sm_send_event(lps, BFA_LPS_SM_LOGOUT);
}

u8
bfa_lps_get_fwtag(struct bfa_s *bfa, u8 lp_tag)
{
	struct bfa_lps_mod_s    *mod = BFA_LPS_MOD(bfa);

	return BFA_LPS_FROM_TAG(mod, lp_tag)->fw_tag;
}

/*
 * Return lport services tag given the pid
 */
u8
bfa_lps_get_tag_from_pid(struct bfa_s *bfa, u32 pid)
{
	struct bfa_lps_mod_s	*mod = BFA_LPS_MOD(bfa);
	struct bfa_lps_s	*lps;
	int			i;

	for (i = 0, lps = mod->lps_arr; i < mod->num_lps; i++, lps++) {
		if (lps->lp_pid == pid)
			return lps->bfa_tag;
	}

	/* Return base port tag anyway */
	return 0;
}


/*
 * return port id assigned to the base lport
 */
u32
bfa_lps_get_base_pid(struct bfa_s *bfa)
{
	struct bfa_lps_mod_s	*mod = BFA_LPS_MOD(bfa);

	return BFA_LPS_FROM_TAG(mod, 0)->lp_pid;
}

/*
 * Set PID in case of n2n (which is assigned during PLOGI)
 */
void
bfa_lps_set_n2n_pid(struct bfa_lps_s *lps, uint32_t n2n_pid)
{
	bfa_trc(lps->bfa, lps->bfa_tag);
	bfa_trc(lps->bfa, n2n_pid);

	lps->lp_pid = n2n_pid;
	bfa_sm_send_event(lps, BFA_LPS_SM_SET_N2N_PID);
}

/*
 * LPS firmware message class handler.
 */
void
bfa_lps_isr(struct bfa_s *bfa, struct bfi_msg_s *m)
{
	union bfi_lps_i2h_msg_u	msg;

	bfa_trc(bfa, m->mhdr.msg_id);
	msg.msg = m;

	switch (m->mhdr.msg_id) {
	case BFI_LPS_I2H_LOGIN_RSP:
		bfa_lps_login_rsp(bfa, msg.login_rsp);
		break;

	case BFI_LPS_I2H_LOGOUT_RSP:
		bfa_lps_logout_rsp(bfa, msg.logout_rsp);
		break;

	case BFI_LPS_I2H_CVL_EVENT:
		bfa_lps_rx_cvl_event(bfa, msg.cvl_event);
		break;

	default:
		bfa_trc(bfa, m->mhdr.msg_id);
		WARN_ON(1);
	}
}

static void
bfa_fcport_aen_post(struct bfa_fcport_s *fcport, enum bfa_port_aen_event event)
{
	struct bfad_s *bfad = (struct bfad_s *)fcport->bfa->bfad;
	struct bfa_aen_entry_s  *aen_entry;

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

	aen_entry->aen_data.port.ioc_type = bfa_get_type(fcport->bfa);
	aen_entry->aen_data.port.pwwn = fcport->pwwn;

	/* Send the AEN notification */
	bfad_im_post_vendor_event(aen_entry, bfad, ++fcport->bfa->bfa_aen_seq,
				  BFA_AEN_CAT_PORT, event);
}

/*
 * FC PORT state machine functions
 */
static void
bfa_fcport_sm_uninit(struct bfa_fcport_s *fcport,
			enum bfa_fcport_sm_event event)
{
	bfa_trc(fcport->bfa, event);

	switch (event) {
	case BFA_FCPORT_SM_START:
		/*
		 * Start event after IOC is configured and BFA is started.
		 */
		fcport->use_flash_cfg = BFA_TRUE;

		if (bfa_fcport_send_enable(fcport)) {
			bfa_trc(fcport->bfa, BFA_TRUE);
			bfa_sm_set_state(fcport, bfa_fcport_sm_enabling);
		} else {
			bfa_trc(fcport->bfa, BFA_FALSE);
			bfa_sm_set_state(fcport,
					bfa_fcport_sm_enabling_qwait);
		}
		break;

	case BFA_FCPORT_SM_ENABLE:
		/*
		 * Port is persistently configured to be in enabled state. Do
		 * not change state. Port enabling is done when START event is
		 * received.
		 */
		break;

	case BFA_FCPORT_SM_DISABLE:
		/*
		 * If a port is persistently configured to be disabled, the
		 * first event will a port disable request.
		 */
		bfa_sm_set_state(fcport, bfa_fcport_sm_disabled);
		break;

	case BFA_FCPORT_SM_HWFAIL:
		bfa_sm_set_state(fcport, bfa_fcport_sm_iocdown);
		break;

	default:
		bfa_sm_fault(fcport->bfa, event);
	}
}

static void
bfa_fcport_sm_enabling_qwait(struct bfa_fcport_s *fcport,
				enum bfa_fcport_sm_event event)
{
	char pwwn_buf[BFA_STRING_32];
	struct bfad_s *bfad = (struct bfad_s *)fcport->bfa->bfad;
	bfa_trc(fcport->bfa, event);

	switch (event) {
	case BFA_FCPORT_SM_QRESUME:
		bfa_sm_set_state(fcport, bfa_fcport_sm_enabling);
		bfa_fcport_send_enable(fcport);
		break;

	case BFA_FCPORT_SM_STOP:
		bfa_reqq_wcancel(&fcport->reqq_wait);
		bfa_sm_set_state(fcport, bfa_fcport_sm_stopped);
		break;

	case BFA_FCPORT_SM_ENABLE:
		/*
		 * Already enable is in progress.
		 */
		break;

	case BFA_FCPORT_SM_DISABLE:
		/*
		 * Just send disable request to firmware when room becomes
		 * available in request queue.
		 */
		bfa_sm_set_state(fcport, bfa_fcport_sm_disabled);
		bfa_reqq_wcancel(&fcport->reqq_wait);
		bfa_plog_str(fcport->bfa->plog, BFA_PL_MID_HAL,
				BFA_PL_EID_PORT_DISABLE, 0, "Port Disable");
		wwn2str(pwwn_buf, fcport->pwwn);
		BFA_LOG(KERN_INFO, bfad, bfa_log_level,
			"Base port disabled: WWN = %s\n", pwwn_buf);
		bfa_fcport_aen_post(fcport, BFA_PORT_AEN_DISABLE);
		break;

	case BFA_FCPORT_SM_LINKUP:
	case BFA_FCPORT_SM_LINKDOWN:
		/*
		 * Possible to get link events when doing back-to-back
		 * enable/disables.
		 */
		break;

	case BFA_FCPORT_SM_HWFAIL:
		bfa_reqq_wcancel(&fcport->reqq_wait);
		bfa_sm_set_state(fcport, bfa_fcport_sm_iocdown);
		break;

	case BFA_FCPORT_SM_FAA_MISCONFIG:
		bfa_fcport_reset_linkinfo(fcport);
		bfa_fcport_aen_post(fcport, BFA_PORT_AEN_DISCONNECT);
		bfa_sm_set_state(fcport, bfa_fcport_sm_faa_misconfig);
		break;

	default:
		bfa_sm_fault(fcport->bfa, event);
	}
}

static void
bfa_fcport_sm_enabling(struct bfa_fcport_s *fcport,
						enum bfa_fcport_sm_event event)
{
	char pwwn_buf[BFA_STRING_32];
	struct bfad_s *bfad = (struct bfad_s *)fcport->bfa->bfad;
	bfa_trc(fcport->bfa, event);

	switch (event) {
	case BFA_FCPORT_SM_FWRSP:
	case BFA_FCPORT_SM_LINKDOWN:
		bfa_sm_set_state(fcport, bfa_fcport_sm_linkdown);
		break;

	case BFA_FCPORT_SM_LINKUP:
		bfa_fcport_update_linkinfo(fcport);
		bfa_sm_set_state(fcport, bfa_fcport_sm_linkup);

		WARN_ON(!fcport->event_cbfn);
		bfa_fcport_scn(fcport, BFA_PORT_LINKUP, BFA_FALSE);
		break;

	case BFA_FCPORT_SM_ENABLE:
		/*
		 * Already being enabled.
		 */
		break;

	case BFA_FCPORT_SM_DISABLE:
		if (bfa_fcport_send_disable(fcport))
			bfa_sm_set_state(fcport, bfa_fcport_sm_disabling);
		else
			bfa_sm_set_state(fcport,
					 bfa_fcport_sm_disabling_qwait);

		bfa_plog_str(fcport->bfa->plog, BFA_PL_MID_HAL,
				BFA_PL_EID_PORT_DISABLE, 0, "Port Disable");
		wwn2str(pwwn_buf, fcport->pwwn);
		BFA_LOG(KERN_INFO, bfad, bfa_log_level,
			"Base port disabled: WWN = %s\n", pwwn_buf);
		bfa_fcport_aen_post(fcport, BFA_PORT_AEN_DISABLE);
		break;

	case BFA_FCPORT_SM_STOP:
		bfa_sm_set_state(fcport, bfa_fcport_sm_stopped);
		break;

	case BFA_FCPORT_SM_HWFAIL:
		bfa_sm_set_state(fcport, bfa_fcport_sm_iocdown);
		break;

	case BFA_FCPORT_SM_FAA_MISCONFIG:
		bfa_fcport_reset_linkinfo(fcport);
		bfa_fcport_aen_post(fcport, BFA_PORT_AEN_DISCONNECT);
		bfa_sm_set_state(fcport, bfa_fcport_sm_faa_misconfig);
		break;

	default:
		bfa_sm_fault(fcport->bfa, event);
	}
}

static void
bfa_fcport_sm_linkdown(struct bfa_fcport_s *fcport,
						enum bfa_fcport_sm_event event)
{
	struct bfi_fcport_event_s *pevent = fcport->event_arg.i2hmsg.event;
	char pwwn_buf[BFA_STRING_32];
	struct bfad_s *bfad = (struct bfad_s *)fcport->bfa->bfad;

	bfa_trc(fcport->bfa, event);

	switch (event) {
	case BFA_FCPORT_SM_LINKUP:
		bfa_fcport_update_linkinfo(fcport);
		bfa_sm_set_state(fcport, bfa_fcport_sm_linkup);
		WARN_ON(!fcport->event_cbfn);
		bfa_plog_str(fcport->bfa->plog, BFA_PL_MID_HAL,
				BFA_PL_EID_PORT_ST_CHANGE, 0, "Port Linkup");
		if (!bfa_ioc_get_fcmode(&fcport->bfa->ioc)) {

			bfa_trc(fcport->bfa,
				pevent->link_state.attr.vc_fcf.fcf.fipenabled);
			bfa_trc(fcport->bfa,
				pevent->link_state.attr.vc_fcf.fcf.fipfailed);

			if (pevent->link_state.attr.vc_fcf.fcf.fipfailed)
				bfa_plog_str(fcport->bfa->plog, BFA_PL_MID_HAL,
					BFA_PL_EID_FIP_FCF_DISC, 0,
					"FIP FCF Discovery Failed");
			else
				bfa_plog_str(fcport->bfa->plog, BFA_PL_MID_HAL,
					BFA_PL_EID_FIP_FCF_DISC, 0,
					"FIP FCF Discovered");
		}

		bfa_fcport_scn(fcport, BFA_PORT_LINKUP, BFA_FALSE);
		wwn2str(pwwn_buf, fcport->pwwn);
		BFA_LOG(KERN_INFO, bfad, bfa_log_level,
			"Base port online: WWN = %s\n", pwwn_buf);
		bfa_fcport_aen_post(fcport, BFA_PORT_AEN_ONLINE);

		/* If QoS is enabled and it is not online, send AEN */
		if (fcport->cfg.qos_enabled &&
		    fcport->qos_attr.state != BFA_QOS_ONLINE)
			bfa_fcport_aen_post(fcport, BFA_PORT_AEN_QOS_NEG);
		break;

	case BFA_FCPORT_SM_LINKDOWN:
		/*
		 * Possible to get link down event.
		 */
		break;

	case BFA_FCPORT_SM_ENABLE:
		/*
		 * Already enabled.
		 */
		break;

	case BFA_FCPORT_SM_DISABLE:
		if (bfa_fcport_send_disable(fcport))
			bfa_sm_set_state(fcport, bfa_fcport_sm_disabling);
		else
			bfa_sm_set_state(fcport,
					 bfa_fcport_sm_disabling_qwait);

		bfa_plog_str(fcport->bfa->plog, BFA_PL_MID_HAL,
				BFA_PL_EID_PORT_DISABLE, 0, "Port Disable");
		wwn2str(pwwn_buf, fcport->pwwn);
		BFA_LOG(KERN_INFO, bfad, bfa_log_level,
			"Base port disabled: WWN = %s\n", pwwn_buf);
		bfa_fcport_aen_post(fcport, BFA_PORT_AEN_DISABLE);
		break;

	case BFA_FCPORT_SM_STOP:
		bfa_sm_set_state(fcport, bfa_fcport_sm_stopped);
		break;

	case BFA_FCPORT_SM_HWFAIL:
		bfa_sm_set_state(fcport, bfa_fcport_sm_iocdown);
		break;

	case BFA_FCPORT_SM_FAA_MISCONFIG:
		bfa_fcport_reset_linkinfo(fcport);
		bfa_fcport_aen_post(fcport, BFA_PORT_AEN_DISCONNECT);
		bfa_sm_set_state(fcport, bfa_fcport_sm_faa_misconfig);
		break;

	default:
		bfa_sm_fault(fcport->bfa, event);
	}
}

static void
bfa_fcport_sm_linkup(struct bfa_fcport_s *fcport,
	enum bfa_fcport_sm_event event)
{
	char pwwn_buf[BFA_STRING_32];
	struct bfad_s *bfad = (struct bfad_s *)fcport->bfa->bfad;

	bfa_trc(fcport->bfa, event);

	switch (event) {
	case BFA_FCPORT_SM_ENABLE:
		/*
		 * Already enabled.
		 */
		break;

	case BFA_FCPORT_SM_DISABLE:
		if (bfa_fcport_send_disable(fcport))
			bfa_sm_set_state(fcport, bfa_fcport_sm_disabling);
		else
			bfa_sm_set_state(fcport,
					 bfa_fcport_sm_disabling_qwait);

		bfa_fcport_reset_linkinfo(fcport);
		bfa_fcport_scn(fcport, BFA_PORT_LINKDOWN, BFA_FALSE);
		bfa_plog_str(fcport->bfa->plog, BFA_PL_MID_HAL,
				BFA_PL_EID_PORT_DISABLE, 0, "Port Disable");
		wwn2str(pwwn_buf, fcport->pwwn);
		BFA_LOG(KERN_INFO, bfad, bfa_log_level,
			"Base port offline: WWN = %s\n", pwwn_buf);
		bfa_fcport_aen_post(fcport, BFA_PORT_AEN_OFFLINE);
		BFA_LOG(KERN_INFO, bfad, bfa_log_level,
			"Base port disabled: WWN = %s\n", pwwn_buf);
		bfa_fcport_aen_post(fcport, BFA_PORT_AEN_DISABLE);
		break;

	case BFA_FCPORT_SM_LINKDOWN:
		bfa_sm_set_state(fcport, bfa_fcport_sm_linkdown);
		bfa_fcport_reset_linkinfo(fcport);
		bfa_fcport_scn(fcport, BFA_PORT_LINKDOWN, BFA_FALSE);
		bfa_plog_str(fcport->bfa->plog, BFA_PL_MID_HAL,
				BFA_PL_EID_PORT_ST_CHANGE, 0, "Port Linkdown");
		wwn2str(pwwn_buf, fcport->pwwn);
		if (BFA_PORT_IS_DISABLED(fcport->bfa)) {
			BFA_LOG(KERN_INFO, bfad, bfa_log_level,
				"Base port offline: WWN = %s\n", pwwn_buf);
			bfa_fcport_aen_post(fcport, BFA_PORT_AEN_OFFLINE);
		} else {
			BFA_LOG(KERN_ERR, bfad, bfa_log_level,
				"Base port (WWN = %s) "
				"lost fabric connectivity\n", pwwn_buf);
			bfa_fcport_aen_post(fcport, BFA_PORT_AEN_DISCONNECT);
		}
		break;

	case BFA_FCPORT_SM_STOP:
		bfa_sm_set_state(fcport, bfa_fcport_sm_stopped);
		bfa_fcport_reset_linkinfo(fcport);
		wwn2str(pwwn_buf, fcport->pwwn);
		if (BFA_PORT_IS_DISABLED(fcport->bfa)) {
			BFA_LOG(KERN_INFO, bfad, bfa_log_level,
				"Base port offline: WWN = %s\n", pwwn_buf);
			bfa_fcport_aen_post(fcport, BFA_PORT_AEN_OFFLINE);
		} else {
			BFA_LOG(KERN_ERR, bfad, bfa_log_level,
				"Base port (WWN = %s) "
				"lost fabric connectivity\n", pwwn_buf);
			bfa_fcport_aen_post(fcport, BFA_PORT_AEN_DISCONNECT);
		}
		break;

	case BFA_FCPORT_SM_HWFAIL:
		bfa_sm_set_state(fcport, bfa_fcport_sm_iocdown);
		bfa_fcport_reset_linkinfo(fcport);
		bfa_fcport_scn(fcport, BFA_PORT_LINKDOWN, BFA_FALSE);
		wwn2str(pwwn_buf, fcport->pwwn);
		if (BFA_PORT_IS_DISABLED(fcport->bfa)) {
			BFA_LOG(KERN_INFO, bfad, bfa_log_level,
				"Base port offline: WWN = %s\n", pwwn_buf);
			bfa_fcport_aen_post(fcport, BFA_PORT_AEN_OFFLINE);
		} else {
			BFA_LOG(KERN_ERR, bfad, bfa_log_level,
				"Base port (WWN = %s) "
				"lost fabric connectivity\n", pwwn_buf);
			bfa_fcport_aen_post(fcport, BFA_PORT_AEN_DISCONNECT);
		}
		break;

	case BFA_FCPORT_SM_FAA_MISCONFIG:
		bfa_fcport_reset_linkinfo(fcport);
		bfa_fcport_aen_post(fcport, BFA_PORT_AEN_DISCONNECT);
		bfa_sm_set_state(fcport, bfa_fcport_sm_faa_misconfig);
		break;

	default:
		bfa_sm_fault(fcport->bfa, event);
	}
}

static void
bfa_fcport_sm_disabling_qwait(struct bfa_fcport_s *fcport,
				 enum bfa_fcport_sm_event event)
{
	bfa_trc(fcport->bfa, event);

	switch (event) {
	case BFA_FCPORT_SM_QRESUME:
		bfa_sm_set_state(fcport, bfa_fcport_sm_disabling);
		bfa_fcport_send_disable(fcport);
		break;

	case BFA_FCPORT_SM_STOP:
		bfa_sm_set_state(fcport, bfa_fcport_sm_stopped);
		bfa_reqq_wcancel(&fcport->reqq_wait);
		break;

	case BFA_FCPORT_SM_ENABLE:
		bfa_sm_set_state(fcport, bfa_fcport_sm_toggling_qwait);
		break;

	case BFA_FCPORT_SM_DISABLE:
		/*
		 * Already being disabled.
		 */
		break;

	case BFA_FCPORT_SM_LINKUP:
	case BFA_FCPORT_SM_LINKDOWN:
		/*
		 * Possible to get link events when doing back-to-back
		 * enable/disables.
		 */
		break;

	case BFA_FCPORT_SM_HWFAIL:
		bfa_sm_set_state(fcport, bfa_fcport_sm_iocfail);
		bfa_reqq_wcancel(&fcport->reqq_wait);
		break;

	case BFA_FCPORT_SM_FAA_MISCONFIG:
		bfa_fcport_reset_linkinfo(fcport);
		bfa_fcport_aen_post(fcport, BFA_PORT_AEN_DISCONNECT);
		bfa_sm_set_state(fcport, bfa_fcport_sm_faa_misconfig);
		break;

	default:
		bfa_sm_fault(fcport->bfa, event);
	}
}

static void
bfa_fcport_sm_toggling_qwait(struct bfa_fcport_s *fcport,
				 enum bfa_fcport_sm_event event)
{
	bfa_trc(fcport->bfa, event);

	switch (event) {
	case BFA_FCPORT_SM_QRESUME:
		bfa_sm_set_state(fcport, bfa_fcport_sm_disabling);
		bfa_fcport_send_disable(fcport);
		if (bfa_fcport_send_enable(fcport))
			bfa_sm_set_state(fcport, bfa_fcport_sm_enabling);
		else
			bfa_sm_set_state(fcport,
					 bfa_fcport_sm_enabling_qwait);
		break;

	case BFA_FCPORT_SM_STOP:
		bfa_sm_set_state(fcport, bfa_fcport_sm_stopped);
		bfa_reqq_wcancel(&fcport->reqq_wait);
		break;

	case BFA_FCPORT_SM_ENABLE:
		break;

	case BFA_FCPORT_SM_DISABLE:
		bfa_sm_set_state(fcport, bfa_fcport_sm_disabling_qwait);
		break;

	case BFA_FCPORT_SM_LINKUP:
	case BFA_FCPORT_SM_LINKDOWN:
		/*
		 * Possible to get link events when doing back-to-back
		 * enable/disables.
		 */
		break;

	case BFA_FCPORT_SM_HWFAIL:
		bfa_sm_set_state(fcport, bfa_fcport_sm_iocfail);
		bfa_reqq_wcancel(&fcport->reqq_wait);
		break;

	default:
		bfa_sm_fault(fcport->bfa, event);
	}
}

static void
bfa_fcport_sm_disabling(struct bfa_fcport_s *fcport,
						enum bfa_fcport_sm_event event)
{
	char pwwn_buf[BFA_STRING_32];
	struct bfad_s *bfad = (struct bfad_s *)fcport->bfa->bfad;
	bfa_trc(fcport->bfa, event);

	switch (event) {
	case BFA_FCPORT_SM_FWRSP:
		bfa_sm_set_state(fcport, bfa_fcport_sm_disabled);
		break;

	case BFA_FCPORT_SM_DISABLE:
		/*
		 * Already being disabled.
		 */
		break;

	case BFA_FCPORT_SM_ENABLE:
		if (bfa_fcport_send_enable(fcport))
			bfa_sm_set_state(fcport, bfa_fcport_sm_enabling);
		else
			bfa_sm_set_state(fcport,
					 bfa_fcport_sm_enabling_qwait);

		bfa_plog_str(fcport->bfa->plog, BFA_PL_MID_HAL,
				BFA_PL_EID_PORT_ENABLE, 0, "Port Enable");
		wwn2str(pwwn_buf, fcport->pwwn);
		BFA_LOG(KERN_INFO, bfad, bfa_log_level,
			"Base port enabled: WWN = %s\n", pwwn_buf);
		bfa_fcport_aen_post(fcport, BFA_PORT_AEN_ENABLE);
		break;

	case BFA_FCPORT_SM_STOP:
		bfa_sm_set_state(fcport, bfa_fcport_sm_stopped);
		break;

	case BFA_FCPORT_SM_LINKUP:
	case BFA_FCPORT_SM_LINKDOWN:
		/*
		 * Possible to get link events when doing back-to-back
		 * enable/disables.
		 */
		break;

	case BFA_FCPORT_SM_HWFAIL:
		bfa_sm_set_state(fcport, bfa_fcport_sm_iocfail);
		break;

	default:
		bfa_sm_fault(fcport->bfa, event);
	}
}

static void
bfa_fcport_sm_disabled(struct bfa_fcport_s *fcport,
						enum bfa_fcport_sm_event event)
{
	char pwwn_buf[BFA_STRING_32];
	struct bfad_s *bfad = (struct bfad_s *)fcport->bfa->bfad;
	bfa_trc(fcport->bfa, event);

	switch (event) {
	case BFA_FCPORT_SM_START:
		/*
		 * Ignore start event for a port that is disabled.
		 */
		break;

	case BFA_FCPORT_SM_STOP:
		bfa_sm_set_state(fcport, bfa_fcport_sm_stopped);
		break;

	case BFA_FCPORT_SM_ENABLE:
		if (bfa_fcport_send_enable(fcport))
			bfa_sm_set_state(fcport, bfa_fcport_sm_enabling);
		else
			bfa_sm_set_state(fcport,
					 bfa_fcport_sm_enabling_qwait);

		bfa_plog_str(fcport->bfa->plog, BFA_PL_MID_HAL,
				BFA_PL_EID_PORT_ENABLE, 0, "Port Enable");
		wwn2str(pwwn_buf, fcport->pwwn);
		BFA_LOG(KERN_INFO, bfad, bfa_log_level,
			"Base port enabled: WWN = %s\n", pwwn_buf);
		bfa_fcport_aen_post(fcport, BFA_PORT_AEN_ENABLE);
		break;

	case BFA_FCPORT_SM_DISABLE:
		/*
		 * Already disabled.
		 */
		break;

	case BFA_FCPORT_SM_HWFAIL:
		bfa_sm_set_state(fcport, bfa_fcport_sm_iocfail);
		break;

	case BFA_FCPORT_SM_DPORTENABLE:
		bfa_sm_set_state(fcport, bfa_fcport_sm_dport);
		break;

	case BFA_FCPORT_SM_DDPORTENABLE:
		bfa_sm_set_state(fcport, bfa_fcport_sm_ddport);
		break;

	default:
		bfa_sm_fault(fcport->bfa, event);
	}
}

static void
bfa_fcport_sm_stopped(struct bfa_fcport_s *fcport,
			 enum bfa_fcport_sm_event event)
{
	bfa_trc(fcport->bfa, event);

	switch (event) {
	case BFA_FCPORT_SM_START:
		if (bfa_fcport_send_enable(fcport))
			bfa_sm_set_state(fcport, bfa_fcport_sm_enabling);
		else
			bfa_sm_set_state(fcport,
					 bfa_fcport_sm_enabling_qwait);
		break;

	default:
		/*
		 * Ignore all other events.
		 */
		;
	}
}

/*
 * Port is enabled. IOC is down/failed.
 */
static void
bfa_fcport_sm_iocdown(struct bfa_fcport_s *fcport,
			 enum bfa_fcport_sm_event event)
{
	bfa_trc(fcport->bfa, event);

	switch (event) {
	case BFA_FCPORT_SM_START:
		if (bfa_fcport_send_enable(fcport))
			bfa_sm_set_state(fcport, bfa_fcport_sm_enabling);
		else
			bfa_sm_set_state(fcport,
					 bfa_fcport_sm_enabling_qwait);
		break;

	default:
		/*
		 * Ignore all events.
		 */
		;
	}
}

/*
 * Port is disabled. IOC is down/failed.
 */
static void
bfa_fcport_sm_iocfail(struct bfa_fcport_s *fcport,
			 enum bfa_fcport_sm_event event)
{
	bfa_trc(fcport->bfa, event);

	switch (event) {
	case BFA_FCPORT_SM_START:
		bfa_sm_set_state(fcport, bfa_fcport_sm_disabled);
		break;

	case BFA_FCPORT_SM_ENABLE:
		bfa_sm_set_state(fcport, bfa_fcport_sm_iocdown);
		break;

	default:
		/*
		 * Ignore all events.
		 */
		;
	}
}

static void
bfa_fcport_sm_dport(struct bfa_fcport_s *fcport, enum bfa_fcport_sm_event event)
{
	bfa_trc(fcport->bfa, event);

	switch (event) {
	case BFA_FCPORT_SM_DPORTENABLE:
	case BFA_FCPORT_SM_DISABLE:
	case BFA_FCPORT_SM_ENABLE:
	case BFA_FCPORT_SM_START:
		/*
		 * Ignore event for a port that is dport
		 */
		break;

	case BFA_FCPORT_SM_STOP:
		bfa_sm_set_state(fcport, bfa_fcport_sm_stopped);
		break;

	case BFA_FCPORT_SM_HWFAIL:
		bfa_sm_set_state(fcport, bfa_fcport_sm_iocfail);
		break;

	case BFA_FCPORT_SM_DPORTDISABLE:
		bfa_sm_set_state(fcport, bfa_fcport_sm_disabled);
		break;

	default:
		bfa_sm_fault(fcport->bfa, event);
	}
}

static void
bfa_fcport_sm_ddport(struct bfa_fcport_s *fcport,
			enum bfa_fcport_sm_event event)
{
	bfa_trc(fcport->bfa, event);

	switch (event) {
	case BFA_FCPORT_SM_DISABLE:
	case BFA_FCPORT_SM_DDPORTDISABLE:
		bfa_sm_set_state(fcport, bfa_fcport_sm_disabled);
		break;

	case BFA_FCPORT_SM_DPORTENABLE:
	case BFA_FCPORT_SM_DPORTDISABLE:
	case BFA_FCPORT_SM_ENABLE:
	case BFA_FCPORT_SM_START:
		/**
		 * Ignore event for a port that is ddport
		 */
		break;

	case BFA_FCPORT_SM_STOP:
		bfa_sm_set_state(fcport, bfa_fcport_sm_stopped);
		break;

	case BFA_FCPORT_SM_HWFAIL:
		bfa_sm_set_state(fcport, bfa_fcport_sm_iocfail);
		break;

	default:
		bfa_sm_fault(fcport->bfa, event);
	}
}

static void
bfa_fcport_sm_faa_misconfig(struct bfa_fcport_s *fcport,
			    enum bfa_fcport_sm_event event)
{
	bfa_trc(fcport->bfa, event);

	switch (event) {
	case BFA_FCPORT_SM_DPORTENABLE:
	case BFA_FCPORT_SM_ENABLE:
	case BFA_FCPORT_SM_START:
		/*
		 * Ignore event for a port as there is FAA misconfig
		 */
		break;

	case BFA_FCPORT_SM_DISABLE:
		if (bfa_fcport_send_disable(fcport))
			bfa_sm_set_state(fcport, bfa_fcport_sm_disabling);
		else
			bfa_sm_set_state(fcport, bfa_fcport_sm_disabling_qwait);

		bfa_fcport_reset_linkinfo(fcport);
		bfa_fcport_scn(fcport, BFA_PORT_LINKDOWN, BFA_FALSE);
		bfa_plog_str(fcport->bfa->plog, BFA_PL_MID_HAL,
			     BFA_PL_EID_PORT_DISABLE, 0, "Port Disable");
		bfa_fcport_aen_post(fcport, BFA_PORT_AEN_DISABLE);
		break;

	case BFA_FCPORT_SM_STOP:
		bfa_sm_set_state(fcport, bfa_fcport_sm_stopped);
		break;

	case BFA_FCPORT_SM_HWFAIL:
		bfa_fcport_reset_linkinfo(fcport);
		bfa_fcport_scn(fcport, BFA_PORT_LINKDOWN, BFA_FALSE);
		bfa_sm_set_state(fcport, bfa_fcport_sm_iocdown);
		break;

	default:
		bfa_sm_fault(fcport->bfa, event);
	}
}

/*
 * Link state is down
 */
static void
bfa_fcport_ln_sm_dn(struct bfa_fcport_ln_s *ln,
		enum bfa_fcport_ln_sm_event event)
{
	bfa_trc(ln->fcport->bfa, event);

	switch (event) {
	case BFA_FCPORT_LN_SM_LINKUP:
		bfa_sm_set_state(ln, bfa_fcport_ln_sm_up_nf);
		bfa_fcport_queue_cb(ln, BFA_PORT_LINKUP);
		break;

	default:
		bfa_sm_fault(ln->fcport->bfa, event);
	}
}

/*
 * Link state is waiting for down notification
 */
static void
bfa_fcport_ln_sm_dn_nf(struct bfa_fcport_ln_s *ln,
		enum bfa_fcport_ln_sm_event event)
{
	bfa_trc(ln->fcport->bfa, event);

	switch (event) {
	case BFA_FCPORT_LN_SM_LINKUP:
		bfa_sm_set_state(ln, bfa_fcport_ln_sm_dn_up_nf);
		break;

	case BFA_FCPORT_LN_SM_NOTIFICATION:
		bfa_sm_set_state(ln, bfa_fcport_ln_sm_dn);
		break;

	default:
		bfa_sm_fault(ln->fcport->bfa, event);
	}
}

/*
 * Link state is waiting for down notification and there is a pending up
 */
static void
bfa_fcport_ln_sm_dn_up_nf(struct bfa_fcport_ln_s *ln,
		enum bfa_fcport_ln_sm_event event)
{
	bfa_trc(ln->fcport->bfa, event);

	switch (event) {
	case BFA_FCPORT_LN_SM_LINKDOWN:
		bfa_sm_set_state(ln, bfa_fcport_ln_sm_dn_nf);
		break;

	case BFA_FCPORT_LN_SM_NOTIFICATION:
		bfa_sm_set_state(ln, bfa_fcport_ln_sm_up_nf);
		bfa_fcport_queue_cb(ln, BFA_PORT_LINKUP);
		break;

	default:
		bfa_sm_fault(ln->fcport->bfa, event);
	}
}

/*
 * Link state is up
 */
static void
bfa_fcport_ln_sm_up(struct bfa_fcport_ln_s *ln,
		enum bfa_fcport_ln_sm_event event)
{
	bfa_trc(ln->fcport->bfa, event);

	switch (event) {
	case BFA_FCPORT_LN_SM_LINKDOWN:
		bfa_sm_set_state(ln, bfa_fcport_ln_sm_dn_nf);
		bfa_fcport_queue_cb(ln, BFA_PORT_LINKDOWN);
		break;

	default:
		bfa_sm_fault(ln->fcport->bfa, event);
	}
}

/*
 * Link state is waiting for up notification
 */
static void
bfa_fcport_ln_sm_up_nf(struct bfa_fcport_ln_s *ln,
		enum bfa_fcport_ln_sm_event event)
{
	bfa_trc(ln->fcport->bfa, event);

	switch (event) {
	case BFA_FCPORT_LN_SM_LINKDOWN:
		bfa_sm_set_state(ln, bfa_fcport_ln_sm_up_dn_nf);
		break;

	case BFA_FCPORT_LN_SM_NOTIFICATION:
		bfa_sm_set_state(ln, bfa_fcport_ln_sm_up);
		break;

	default:
		bfa_sm_fault(ln->fcport->bfa, event);
	}
}

/*
 * Link state is waiting for up notification and there is a pending down
 */
static void
bfa_fcport_ln_sm_up_dn_nf(struct bfa_fcport_ln_s *ln,
		enum bfa_fcport_ln_sm_event event)
{
	bfa_trc(ln->fcport->bfa, event);

	switch (event) {
	case BFA_FCPORT_LN_SM_LINKUP:
		bfa_sm_set_state(ln, bfa_fcport_ln_sm_up_dn_up_nf);
		break;

	case BFA_FCPORT_LN_SM_NOTIFICATION:
		bfa_sm_set_state(ln, bfa_fcport_ln_sm_dn_nf);
		bfa_fcport_queue_cb(ln, BFA_PORT_LINKDOWN);
		break;

	default:
		bfa_sm_fault(ln->fcport->bfa, event);
	}
}

/*
 * Link state is waiting for up notification and there are pending down and up
 */
static void
bfa_fcport_ln_sm_up_dn_up_nf(struct bfa_fcport_ln_s *ln,
			enum bfa_fcport_ln_sm_event event)
{
	bfa_trc(ln->fcport->bfa, event);

	switch (event) {
	case BFA_FCPORT_LN_SM_LINKDOWN:
		bfa_sm_set_state(ln, bfa_fcport_ln_sm_up_dn_nf);
		break;

	case BFA_FCPORT_LN_SM_NOTIFICATION:
		bfa_sm_set_state(ln, bfa_fcport_ln_sm_dn_up_nf);
		bfa_fcport_queue_cb(ln, BFA_PORT_LINKDOWN);
		break;

	default:
		bfa_sm_fault(ln->fcport->bfa, event);
	}
}

static void
__bfa_cb_fcport_event(void *cbarg, bfa_boolean_t complete)
{
	struct bfa_fcport_ln_s *ln = cbarg;

	if (complete)
		ln->fcport->event_cbfn(ln->fcport->event_cbarg, ln->ln_event);
	else
		bfa_sm_send_event(ln, BFA_FCPORT_LN_SM_NOTIFICATION);
}

/*
 * Send SCN notification to upper layers.
 * trunk - false if caller is fcport to ignore fcport event in trunked mode
 */
static void
bfa_fcport_scn(struct bfa_fcport_s *fcport, enum bfa_port_linkstate event,
	bfa_boolean_t trunk)
{
	if (fcport->cfg.trunked && !trunk)
		return;

	switch (event) {
	case BFA_PORT_LINKUP:
		bfa_sm_send_event(&fcport->ln, BFA_FCPORT_LN_SM_LINKUP);
		break;
	case BFA_PORT_LINKDOWN:
		bfa_sm_send_event(&fcport->ln, BFA_FCPORT_LN_SM_LINKDOWN);
		break;
	default:
		WARN_ON(1);
	}
}

static void
bfa_fcport_queue_cb(struct bfa_fcport_ln_s *ln, enum bfa_port_linkstate event)
{
	struct bfa_fcport_s *fcport = ln->fcport;

	if (fcport->bfa->fcs) {
		fcport->event_cbfn(fcport->event_cbarg, event);
		bfa_sm_send_event(ln, BFA_FCPORT_LN_SM_NOTIFICATION);
	} else {
		ln->ln_event = event;
		bfa_cb_queue(fcport->bfa, &ln->ln_qe,
			__bfa_cb_fcport_event, ln);
	}
}

#define FCPORT_STATS_DMA_SZ (BFA_ROUNDUP(sizeof(union bfa_fcport_stats_u), \
							BFA_CACHELINE_SZ))

static void
bfa_fcport_meminfo(struct bfa_iocfc_cfg_s *cfg, struct bfa_meminfo_s *minfo,
		   struct bfa_s *bfa)
{
	struct bfa_mem_dma_s *fcport_dma = BFA_MEM_FCPORT_DMA(bfa);

	bfa_mem_dma_setup(minfo, fcport_dma, FCPORT_STATS_DMA_SZ);
}

static void
bfa_fcport_qresume(void *cbarg)
{
	struct bfa_fcport_s *fcport = cbarg;

	bfa_sm_send_event(fcport, BFA_FCPORT_SM_QRESUME);
}

static void
bfa_fcport_mem_claim(struct bfa_fcport_s *fcport)
{
	struct bfa_mem_dma_s *fcport_dma = &fcport->fcport_dma;

	fcport->stats_kva = bfa_mem_dma_virt(fcport_dma);
	fcport->stats_pa  = bfa_mem_dma_phys(fcport_dma);
	fcport->stats = (union bfa_fcport_stats_u *)
				bfa_mem_dma_virt(fcport_dma);
}

/*
 * Memory initialization.
 */
static void
bfa_fcport_attach(struct bfa_s *bfa, void *bfad, struct bfa_iocfc_cfg_s *cfg,
		struct bfa_pcidev_s *pcidev)
{
	struct bfa_fcport_s *fcport = BFA_FCPORT_MOD(bfa);
	struct bfa_port_cfg_s *port_cfg = &fcport->cfg;
	struct bfa_fcport_ln_s *ln = &fcport->ln;
	struct timeval tv;

	fcport->bfa = bfa;
	ln->fcport = fcport;

	bfa_fcport_mem_claim(fcport);

	bfa_sm_set_state(fcport, bfa_fcport_sm_uninit);
	bfa_sm_set_state(ln, bfa_fcport_ln_sm_dn);

	/*
	 * initialize time stamp for stats reset
	 */
	do_gettimeofday(&tv);
	fcport->stats_reset_time = tv.tv_sec;
	fcport->stats_dma_ready = BFA_FALSE;

	/*
	 * initialize and set default configuration
	 */
	port_cfg->topology = BFA_PORT_TOPOLOGY_P2P;
	port_cfg->speed = BFA_PORT_SPEED_AUTO;
	port_cfg->trunked = BFA_FALSE;
	port_cfg->maxfrsize = 0;

	port_cfg->trl_def_speed = BFA_PORT_SPEED_1GBPS;
	port_cfg->qos_bw.high = BFA_QOS_BW_HIGH;
	port_cfg->qos_bw.med = BFA_QOS_BW_MED;
	port_cfg->qos_bw.low = BFA_QOS_BW_LOW;

	fcport->fec_state = BFA_FEC_OFFLINE;

	INIT_LIST_HEAD(&fcport->stats_pending_q);
	INIT_LIST_HEAD(&fcport->statsclr_pending_q);

	bfa_reqq_winit(&fcport->reqq_wait, bfa_fcport_qresume, fcport);
}

static void
bfa_fcport_detach(struct bfa_s *bfa)
{
}

/*
 * Called when IOC is ready.
 */
static void
bfa_fcport_start(struct bfa_s *bfa)
{
	bfa_sm_send_event(BFA_FCPORT_MOD(bfa), BFA_FCPORT_SM_START);
}

/*
 * Called before IOC is stopped.
 */
static void
bfa_fcport_stop(struct bfa_s *bfa)
{
	bfa_sm_send_event(BFA_FCPORT_MOD(bfa), BFA_FCPORT_SM_STOP);
	bfa_trunk_iocdisable(bfa);
}

/*
 * Called when IOC failure is detected.
 */
static void
bfa_fcport_iocdisable(struct bfa_s *bfa)
{
	struct bfa_fcport_s *fcport = BFA_FCPORT_MOD(bfa);

	bfa_sm_send_event(fcport, BFA_FCPORT_SM_HWFAIL);
	bfa_trunk_iocdisable(bfa);
}

/*
 * Update loop info in fcport for SCN online
 */
static void
bfa_fcport_update_loop_info(struct bfa_fcport_s *fcport,
			struct bfa_fcport_loop_info_s *loop_info)
{
	fcport->myalpa = loop_info->myalpa;
	fcport->alpabm_valid =
			loop_info->alpabm_val;
	memcpy(fcport->alpabm.alpa_bm,
			loop_info->alpabm.alpa_bm,
			sizeof(struct fc_alpabm_s));
}

static void
bfa_fcport_update_linkinfo(struct bfa_fcport_s *fcport)
{
	struct bfi_fcport_event_s *pevent = fcport->event_arg.i2hmsg.event;
	struct bfa_fcport_trunk_s *trunk = &fcport->trunk;

	fcport->speed = pevent->link_state.speed;
	fcport->topology = pevent->link_state.topology;

	if (fcport->topology == BFA_PORT_TOPOLOGY_LOOP) {
		bfa_fcport_update_loop_info(fcport,
				&pevent->link_state.attr.loop_info);
		return;
	}

	/* QoS Details */
	fcport->qos_attr = pevent->link_state.qos_attr;
	fcport->qos_vc_attr = pevent->link_state.attr.vc_fcf.qos_vc_attr;

	if (fcport->cfg.bb_cr_enabled)
		fcport->bbcr_attr = pevent->link_state.attr.bbcr_attr;

	fcport->fec_state = pevent->link_state.fec_state;

	/*
	 * update trunk state if applicable
	 */
	if (!fcport->cfg.trunked)
		trunk->attr.state = BFA_TRUNK_DISABLED;

	/* update FCoE specific */
	fcport->fcoe_vlan =
		be16_to_cpu(pevent->link_state.attr.vc_fcf.fcf.vlan);

	bfa_trc(fcport->bfa, fcport->speed);
	bfa_trc(fcport->bfa, fcport->topology);
}

static void
bfa_fcport_reset_linkinfo(struct bfa_fcport_s *fcport)
{
	fcport->speed = BFA_PORT_SPEED_UNKNOWN;
	fcport->topology = BFA_PORT_TOPOLOGY_NONE;
	fcport->fec_state = BFA_FEC_OFFLINE;
}

/*
 * Send port enable message to firmware.
 */
static bfa_boolean_t
bfa_fcport_send_enable(struct bfa_fcport_s *fcport)
{
	struct