/*
* 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.c Remote port implementation.
*/
#include <linux/slab.h>
#include <bfa.h>
#include <bfa_svc.h>
#include "fcbuild.h"
#include "fcs_vport.h"
#include "fcs_lport.h"
#include "fcs_rport.h"
#include "fcs_fcpim.h"
#include "fcs_fcptm.h"
#include "fcs_trcmod.h"
#include "fcs_fcxp.h"
#include "fcs.h"
#include <fcb/bfa_fcb_rport.h>
#include <aen/bfa_aen_rport.h>
BFA_TRC_FILE(FCS, RPORT);
/* In millisecs */
static u32 bfa_fcs_rport_del_timeout =
BFA_FCS_RPORT_DEF_DEL_TIMEOUT * 1000;
/*
* forward declarations
*/
static struct bfa_fcs_rport_s *bfa_fcs_rport_alloc(struct bfa_fcs_port_s *port,
wwn_t pwwn, u32 rpid);
static void bfa_fcs_rport_free(struct bfa_fcs_rport_s *rport);
static void bfa_fcs_rport_hal_online(struct bfa_fcs_rport_s *rport);
static void bfa_fcs_rport_online_action(struct bfa_fcs_rport_s *rport);
static void bfa_fcs_rport_offline_action(struct bfa_fcs_rport_s *rport);
static void bfa_fcs_rport_update(struct bfa_fcs_rport_s *rport,
struct fc_logi_s *plogi);
static void bfa_fcs_rport_fc4_pause(struct bfa_fcs_rport_s *rport);
static void bfa_fcs_rport_fc4_resume(struct bfa_fcs_rport_s *rport);
static void bfa_fcs_rport_timeout(void *arg);
static void bfa_fcs_rport_send_plogi(void *rport_cbarg,
struct bfa_fcxp_s *fcxp_alloced);
static void bfa_fcs_rport_send_plogiacc(void *rport_cbarg,
struct bfa_fcxp_s *fcxp_alloced);
static void bfa_fcs_rport_plogi_response(void *fcsarg,
struct bfa_fcxp_s *fcxp,
void *cbarg,
bfa_status_t req_status,
u32 rsp_len,
u32 resid_len,
struct fchs_s *rsp_fchs);
static void bfa_fcs_rport_send_adisc(void *rport_cbarg,
struct bfa_fcxp_s *fcxp_alloced);
static void bfa_fcs_rport_adisc_response(void *fcsarg,
struct bfa_fcxp_s *fcxp,
void *cbarg,
bfa_status_t req_status,
u32 rsp_len,
u32 resid_len,
struct fchs_s *rsp_fchs);
static void bfa_fcs_rport_send_gidpn(void *rport_cbarg,
struct bfa_fcxp_s *fcxp_alloced);
static void bfa_fcs_rport_gidpn_response(void *fcsarg,
struct bfa_fcxp_s *fcxp,
void *cbarg,
bfa_status_t req_status,
u32 rsp_len,
u32 resid_len,
struct fchs_s *rsp_fchs);
static void bfa_fcs_rport_send_logo(void *rport_cbarg,
struct bfa_fcxp_s *fcxp_alloced);
static void bfa_fcs_rport_send_logo_acc(void *rport_cbarg);
static void bfa_fcs_rport_process_prli(struct bfa_fcs_rport_s *rport,
struct fchs_s *rx_fchs, u16 len);
static void bfa_fcs_rport_send_ls_rjt(struct bfa_fcs_rport_s *rport,
struct fchs_s *rx_fchs, u8 reason_code,
u8 reason_code_expl);
static void bfa_fcs_rport_process_adisc(struct bfa_fcs_rport_s *rport,
struct fchs_s *rx_fchs, u16 len);
static void bfa_fcs_rport_send_prlo_acc(struct bfa_fcs_rport_s *rport);
/**
* fcs_rport_sm FCS rport state machine events
*/
enum rport_event {
RPSM_EVENT_PLOGI_SEND = 1, /* new rport; start with PLOGI */
RPSM_EVENT_PLOGI_RCVD = 2, /* Inbound PLOGI from remote port */
RPSM_EVENT_PLOGI_COMP = 3, /* PLOGI completed to rport */
RPSM_EVENT_LOGO_RCVD = 4, /* LOGO from remote device */
RPSM_EVENT_LOGO_IMP = 5, /* implicit logo for SLER */
RPSM_EVENT_FCXP_SENT = 6, /* Frame from has been sent */
RPSM_EVENT_DELETE = 7, /* RPORT delete request */
RPSM_EVENT_SCN = 8, /* state change notification */
RPSM_EVENT_ACCEPTED = 9,/* Good response from remote device */
RPSM_EVENT_FAILED = 10, /* Request to rport failed. */
RPSM_EVENT_TIMEOUT = 11, /* Rport SM timeout event */
RPSM_EVENT_HCB_ONLINE = 12, /* BFA rport online callback */
RPSM_EVENT_HCB_OFFLINE = 13, /* BFA rport offline callback */
RPSM_EVENT_FC4_OFFLINE = 14, /* FC-4 offline complete */
RPSM_EVENT_ADDRESS_CHANGE = 15, /* Rport's PID has changed */
RPSM_EVENT_ADDRESS_DISC = 16, /* Need to Discover rport's PID */
RPSM_EVENT_PRLO_RCVD = 17, /* PRLO from remote device */
};
static void bfa_fcs_rport_sm_uninit(struct bfa_fcs_rport_s *rport,
enum rport_event event);
static void bfa_fcs_rport_sm_plogi_sending(struct bfa_fcs_rport_s *rport,
enum rport_event event);
static void bfa_fcs_rport_sm_plogiacc_sending(struct bfa_fcs_rport_s *rport,
enum rport_event event);
static void bfa_fcs_rport_sm_plogi_retry(struct bfa_fcs_rport_s *rport,
enum rport_event event);
static void bfa_fcs_rport_sm_plogi(struct bfa_fcs_rport_s *rport,
enum rport_event event);
static void bfa_fcs_rport_sm_hal_online(struct bfa_fcs_rport_s *rport,
enum rport_event event);
static void bfa_fcs_rport_sm_online(struct bfa_fcs_rport_s *rport,
enum rport_event event);
static void bfa_fcs_rport_sm_nsquery_sending(struct bfa_fcs_rport_s *rport,
enum rport_event event);
static void bfa_fcs_rport_sm_nsquery(struct bfa_fcs_rport_s *rport,
enum rport_event event);
static void bfa_fcs_rport_sm_adisc_sending(struct bfa_fcs_rport_s *rport,
enum rport_event event);
static void bfa_fcs_rport_sm_adisc(struct bfa_fcs_rport_s *rport,
enum rport_event event);
static void bfa_fcs_rport_sm_fc4_logorcv(struct bfa_fcs_rport_s *rport,
enum rport_event event);
static void bfa_fcs_rport_sm_fc4_logosend(struct bfa_fcs_rport_s *rport,
enum rport_event event);
static void bfa_fcs_rport_sm_fc4_offline(struct bfa_fcs_rport_s *rport,
enum rport_event event);
static void bfa_fcs_rport_sm_hcb_offline(struct bfa_fcs_rport_s *rport,
enum rport_event event);
static void bfa_fcs_rport_sm_hcb_logorcv(struct bfa_fcs_rport_s *rport,
enum rport_event event);
static void bfa_fcs_rport_sm_hcb_logosend(struct bfa_fcs_rport_s *rport,
enum rport_event event);
static void bfa_fcs_rport_sm_logo_sending(struct bfa_fcs_rport_s *rport,
enum rport_event event);
static void bfa_fcs_rport_sm_offline(struct bfa_fcs_rport_s *rport,
enum rport_event event);
static void bfa_fcs_rport_sm_nsdisc_sending(struct bfa_fcs_rport_s *rport,
enum rport_event event);
static void bfa_fcs_rport_sm_nsdisc_retry(struct bfa_fcs_rport_s *rport,
enum rport_event event);
static void bfa_fcs_rport_sm_nsdisc_sent(struct bfa_fcs_rport_s *rport,
enum rport_event event);
static void bfa_fcs_rport_sm_nsdisc_sent(struct bfa_fcs_rport_s *rport,
enum rport_event event);
static struct bfa_sm_table_s rport_sm_table[] = {
{BFA_SM(bfa_fcs_rport_sm_uninit), BFA_RPORT_UNINIT},
{BFA_SM(bfa_fcs_rport_sm_plogi_sending), BFA_RPORT_PLOGI},
{BFA_SM(bfa_fcs_rport_sm_plogiacc_sending), BFA_RPORT_ONLINE},
{BFA_SM(bfa_fcs_rport_sm_plogi_retry), BFA_RPORT_PLOGI_RETRY},
{BFA_SM(bfa_fcs_rport_sm_plogi), BFA_RPORT_PLOGI},
{BFA_SM(bfa_fcs_rport_sm_hal_online), BFA_RPORT_ONLINE},
{BFA_SM(bfa_fcs_rport_sm_online), BFA_RPORT_ONLINE},
{BFA_SM(bfa_fcs_rport_sm_nsquery_sending), BFA_RPORT_NSQUERY},
{BFA_SM(bfa_fcs_rport_sm_nsquery), BFA_RPORT_NSQUERY},
{BFA_SM(bfa_fcs_rport_sm_adisc_sending), BFA_RPORT_ADISC},
{BFA_SM(bfa_fcs_rport_sm_adisc), BFA_RPORT_ADISC},
{BFA_SM(bfa_fcs_rport_sm_fc4_logorcv), BFA_RPORT_LOGORCV},
{BFA_SM(bfa_fcs_rport_sm_fc4_logosend), BFA_RPORT_LOGO},
{BFA_SM(bfa_fcs_rport_sm_fc4_offline), BFA_RPORT_OFFLINE},
{BFA_SM(bfa_fcs_rport_sm_hcb_offline), BFA_RPORT_OFFLINE},
{BFA_SM(bfa_fcs_rport_sm_hcb_logorcv), BFA_RPORT_LOGORCV},
{BFA_SM(bfa_fcs_rport_sm_hcb_logosend), BFA_RPORT_LOGO},
{BFA_SM(bfa_fcs_rport_sm_logo_sending), BFA_RPORT_LOGO},
{BFA_SM(bfa_fcs_rport_sm_offline), BFA_RPORT_OFFLINE},
{BFA_SM(bfa_fcs_rport_sm_nsdisc_sending), BFA_RPORT_NSDISC},
{BFA_SM(bfa_fcs_rport_sm_nsdisc_retry), BFA_RPORT_NSDISC},
{BFA_SM(bfa_fcs_rport_sm_nsdisc_sent), BFA_RPORT_NSDISC},
};
/**
* Beginning state.
*/
static void
bfa_fcs_rport_sm_uninit(struct bfa_fcs_rport_s *rport, enum rport_event event)
{
bfa_trc(rport->fcs, rport->pwwn);
bfa_trc(rport->fcs, rport->pid);
bfa_trc(rport->fcs, event);
switch (event) {
case RPSM_EVENT_PLOGI_SEND:
bfa_sm_set_state(rport, bfa_fcs_rport_sm_plogi_sending);
rport->plogi_retries = 0;
bfa_fcs_rport_send_plogi(rport, NULL);
break;
case RPSM_EVENT_PLOGI_RCVD:
bfa_sm_set_state(rport, bfa_fcs_rport_sm_plogiacc_sending);
bfa_fcs_rport_send_plogiacc(rport, NULL);
break;
case RPSM_EVENT_PLOGI_COMP:
bfa_sm_set_state(rport, bfa_fcs_rport_sm_hal_online);
bfa_fcs_rport_hal_online(rport);
break;
case RPSM_EVENT_ADDRESS_CHANGE:
case RPSM_EVENT_ADDRESS_DISC:
bfa_sm_set_state(rport, bfa_fcs_rport_sm_nsdisc_sending);
rport->ns_retries = 0;
bfa_fcs_rport_send_gidpn(rport, NULL);
break;
default:
bfa_sm_fault(rport->fcs, event);
}
}
/**
* PLOGI is being sent.
*/
static void
bfa_fcs_rport_sm_plogi_sending(struct bfa_fcs_rport_s *rport,
enum rport_event event)
{
bfa_trc(rport->fcs, rport->pwwn);
bfa_trc(rport->fcs, rport->pid);
bfa_trc(rport->fcs, event);
switch (event) {
case RPSM_EVENT_FCXP_SENT:
bfa_sm_set_state(rport, bfa_fcs_rport_sm_plogi);
break;
case RPSM_EVENT_DELETE:
bfa_sm_set_state(rport, bfa_fcs_rport_sm_uninit);
bfa_fcxp_walloc_cancel(rport->fcs->bfa, &rport->fcxp_wqe);
bfa_fcs_rport_free(rport);
break;
case RPSM_EVENT_PLOGI_RCVD:
bfa_sm_set_state(rport, bfa_fcs_rport_sm_plogiacc_sending);
bfa_fcxp_walloc_cancel(rport->fcs->bfa, &rport->fcxp_wqe);
bfa_fcs_rport_send_plogiacc(rport, NULL);
break;
case RPSM_EVENT_ADDRESS_CHANGE:
bfa_fcxp_walloc_cancel(rport->fcs->bfa, &rport->fcxp_wqe);
bfa_sm_set_state(rport, bfa_fcs_rport_sm_nsdisc_sending);
rport->ns_retries = 0;
bfa_fcs_rport_send_gidpn(rport, NULL);
break;
case RPSM_EVENT_LOGO_IMP:
rport->pid = 0;
bfa_sm_set_state(rport, bfa_fcs_rport_sm_offline);
bfa_fcxp_walloc_cancel(rport->fcs->bfa, &rport->fcxp_wqe);
bfa_timer_start(rport->fcs->bfa, &rport->timer,
bfa_fcs_rport_timeout, rport,
bfa_fcs_rport_del_timeout);
break;
case RPSM_EVENT_SCN:
break;
default:
bfa_sm_fault(rport->fcs, event);
}
}
/**
* PLOGI is being sent.
*/
static void
bfa_fcs_rport_sm_plogiacc_sending(struct bfa_fcs_rport_s *rport,
enum rport_event event)
{
bfa_trc(rport->fcs, rport->pwwn);
bfa_trc(rport->fcs, rport->pid);
bfa_trc(rport->fcs, event);
switch (event) {
case RPSM_EVENT_FCXP_SENT:
bfa_sm_set_state(rport, bfa_fcs_rport_sm_hal_online);
bfa_fcs_rport_hal_online(rport);
break;
case RPSM_EVENT_DELETE:
bfa_sm_set_state(rport, bfa_fcs_rport_sm_uninit);
bfa_fcxp_walloc_cancel(rport->fcs->bfa, &rport->fcxp_wqe);
bfa_fcs_rport_free(rport);
break;
case RPSM_EVENT_SCN:
/**
* Ignore, SCN is possibly online notification.
*/
break;
case RPSM_EVENT_ADDRESS_CHANGE:
bfa_fcxp_walloc_cancel(rport->fcs->bfa, &rport->fcxp_wqe);
bfa_sm_set_state(rport, bfa_fcs_rport_sm_nsdisc_sending);
rport->ns_retries = 0;
bfa_fcs_rport_send_gidpn(rport, NULL);
break;
case RPSM_EVENT_LOGO_IMP:
rport->pid = 0;
bfa_sm_set_state(rport, bfa_fcs_rport_sm_offline);
bfa_fcxp_walloc_cancel(rport->fcs->bfa, &rport->fcxp_wqe);
bfa_timer_start(rport->fcs->bfa, &rport->timer,
bfa_fcs_rport_timeout, rport,
bfa_fcs_rport_del_timeout);
break;
case RPSM_EVENT_HCB_OFFLINE:
/**
* Ignore BFA callback, on a PLOGI receive we call bfa offline.
*/
break;
default:
bfa_sm_fault(rport->fcs, event);
}
}
/**
* PLOGI is sent.
*/
static void
bfa_fcs_rport_sm_plogi_retry(struct bfa_fcs_rport_s *rport,
enum rport_event event)
{
bfa_trc(rport->fcs, rport->pwwn);
bfa_trc(rport->fcs, rport->pid);
bfa_trc(rport->fcs, event);
switch (event) {
case RPSM_EVENT_SCN:
bfa_timer_stop(&rport->timer);
/*
* !! fall through !!
*/
case RPSM_EVENT_TIMEOUT:
if (rport->plogi_retries < BFA_FCS_RPORT_MAX_RETRIES) {
rport->plogi_retries++;
bfa_sm_set_state(rport, bfa_fcs_rport_sm_plogi_sending);
bfa_fcs_rport_send_plogi(rport, NULL);
} else {
rport->pid = 0;
bfa_sm_set_state(rport, bfa_fcs_rport_sm_offline);
bfa_timer_start(rport->fcs->bfa, &rport->timer,
bfa_fcs_rport_timeout, rport,
bfa_fcs_rport_del_timeout);
}
break;
case RPSM_EVENT_DELETE:
bfa_sm_set_state(rport, bfa_fcs_rport_sm_uninit);
bfa_timer_stop(&rport->timer);
bfa_fcs_rport_free(rport);
break;
case RPSM_EVENT_PRLO_RCVD:
case RPSM_EVENT_LOGO_RCVD:
break;
case RPSM_EVENT_PLOGI_RCVD:
bfa_sm_set_state(rport, bfa_fcs_rport_sm_plogiacc_sending);
bfa_timer_stop(&rport->timer);
bfa_fcs_rport_send_plogiacc(rport, NULL);
break;
case RPSM_EVENT_ADDRESS_CHANGE:
bfa_timer_stop(&rport->timer);
bfa_sm_set_state(rport, bfa_fcs_rport_sm_nsdisc_sending);
rport->ns_retries = 0;
bfa_fcs_rport_send_gidpn(rport, NULL);
break;
case RPSM_EVENT_LOGO_IMP:
rport->pid = 0;
bfa_sm_set_state(rport, bfa_fcs_rport_sm_offline);
bfa_timer_stop(&rport->timer);
bfa_timer_start(rport->fcs->bfa, &rport->timer,
bfa_fcs_rport_timeout, rport,
bfa_fcs_rport_del_timeout);
break;
case RPSM_EVENT_PLOGI_COMP:
bfa_sm_set_state(rport, bfa_fcs_rport_sm_hal_online);
bfa_timer_stop(&rport->timer);
bfa_fcs_rport_hal_online(rport);
break;
default:
bfa_sm_fault(rport->fcs, event);
}
}
/**
* PLOGI is sent.
*/
static void
bfa_fcs_rport_sm_plogi(struct bfa_fcs_rport_s *rport, enum rport_event event)
{
bfa_trc(rport->fcs, rport->pwwn);
bfa_trc(rport->fcs, rport->pid);
bfa_trc(rport->fcs, event);
switch (event) {
case RPSM_EVENT_ACCEPTED:
bfa_sm_set_state(rport, bfa_fcs_rport_sm_hal_online);
rport->plogi_retries = 0;
bfa_fcs_rport_hal_online(rport);
break;
case RPSM_EVENT_LOGO_RCVD:
bfa_fcs_rport_send_logo_acc(rport);
/*
* !! fall through !!
*/
case RPSM_EVENT_PRLO_RCVD:
if (rport->prlo == BFA_TRUE)
bfa_fcs_rport_send_prlo_acc(rport);
bfa_fcxp_discard(rport->fcxp);
/*
* !! fall through !!
*/
case RPSM_EVENT_FAILED:
bfa_sm_set_state(rport, bfa_fcs_rport_sm_plogi_retry);
bfa_timer_start(rport->fcs->bfa, &rport->timer,
bfa_fcs_rport_timeout, rport,
BFA_FCS_RETRY_TIMEOUT);
break;
case RPSM_EVENT_LOGO_IMP:
rport->pid = 0;
bfa_sm_set_state(rport, bfa_fcs_rport_sm_offline);
bfa_fcxp_discard(rport->fcxp);
bfa_timer_start(rport->fcs->bfa, &rport->timer,
bfa_fcs_rport_timeout, rport,
bfa_fcs_rport_del_timeout);
break;
case RPSM_EVENT_ADDRESS_CHANGE:
bfa_fcxp_discard(rport->fcxp);
bfa_sm_set_state(rport, bfa_fcs_rport_sm_nsdisc_sending);
rport->ns_retries = 0;
bfa_fcs_rport_send_gidpn(rport, NULL);
break;
case RPSM_EVENT_PLOGI_RCVD:
bfa_sm_set_state(rport, bfa_fcs_rport_sm_plogiacc_sending);
bfa_fcxp_discard(rport->fcxp);
bfa_fcs_rport_send_plogiacc(rport, NULL);
break;
case RPSM_EVENT_SCN:
/**
* Ignore SCN - wait for PLOGI response.
*/
break;
case RPSM_EVENT_DELETE:
bfa_sm_set_state(rport, bfa_fcs_rport_sm_uninit);
bfa_fcxp_discard(rport->fcxp);
bfa_fcs_rport_free(rport);
break;
case RPSM_EVENT_PLOGI_COMP:
bfa_sm_set_state(rport, bfa_fcs_rport_sm_hal_online);
bfa_fcxp_discard(rport->fcxp);
bfa_fcs_rport_hal_online(rport);
break;
default:
bfa_sm_fault(rport->fcs, event);
}
}
/**
* PLOGI is complete. Awaiting BFA rport online callback. FC-4s
* are offline.
*/
static void
bfa_fcs_rport_sm_hal_online(struct bfa_fcs_rport_s *rport,
enum rport_event event)
{
bfa_trc(rport->fcs, rport->pwwn);
bfa_trc(rport->fcs, rport->pid);
bfa_trc(rport->fcs, event);
switch (event) {
case RPSM_EVENT_HCB_ONLINE:
bfa_sm_set_state(rport, bfa_fcs_rport_sm_online);
bfa_fcs_rport_online_action(rport);
break;
case RPSM_EVENT_PRLO_RCVD:
break;
case RPSM_EVENT_LOGO_RCVD:
bfa_sm_set_state(rport, bfa_fcs_rport_sm_hcb_logorcv);
bfa_rport_offline(rport->bfa_rport);
break;
case RPSM_EVENT_LOGO_IMP:
case RPSM_EVENT_ADDRESS_CHANGE:
bfa_sm_set_state(rport, bfa_fcs_rport_sm_hcb_offline);
bfa_rport_offline(rport->bfa_rport);
break;
case RPSM_EVENT_PLOGI_RCVD:
bfa_sm_set_state(rport, bfa_fcs_rport_sm_plogiacc_sending);
bfa_rport_offline(rport->bfa_rport);
bfa_fcs_rport_send_plogiacc(rport, NULL);
break;
case RPSM_EVENT_DELETE:
bfa_sm_set_state(rport, bfa_fcs_rport_sm_hcb_logosend);
bfa_rport_offline(rport->bfa_rport);
break;
case RPSM_EVENT_SCN:
/**
* @todo
* Ignore SCN - PLOGI just completed, FC-4 login should detect
* device failures.
*/
break;
default:
bfa_sm_fault(rport->fcs, event);
}
}
/**
* Rport is ONLINE. FC-4s active.
*/
static void
bfa_fcs_rport_sm_online(struct bfa_fcs_rport_s *rport, enum rport_event event)
{
bfa_trc(rport->fcs, rport->pwwn);
bfa_trc(rport->fcs, rport->pid);
bfa_trc(rport->fcs, event);
switch (event) {
case RPSM_EVENT_SCN:
/**
* Pause FC-4 activity till rport is authenticated.
* In switched fabrics, check presence of device in nameserver
* first.
*/
bfa_fcs_rport_fc4_pause(rport);
if (bfa_fcs_fabric_is_switched(rport->port->fabric)) {
bfa_sm_set_state(rport,
bfa_fcs_rport_sm_nsquery_sending);
rport->ns_retries = 0;
bfa_fcs_rport_send_gidpn(rport, NULL);
} else {
bfa_sm_set_state(rport, bfa_fcs_rport_sm_adisc_sending);
bfa_fcs_rport_send_adisc(rport, NULL);
}
break;
case RPSM_EVENT_PLOGI_RCVD:
case RPSM_EVENT_LOGO_IMP:
case RPSM_EVENT_ADDRESS_CHANGE:
bfa_sm_set_state(rport, bfa_fcs_rport_sm_fc4_offline);
bfa_fcs_rport_offline_action(rport);
break;
case RPSM_EVENT_DELETE:
bfa_sm_set_state(rport, bfa_fcs_rport_sm_fc4_logosend);
bfa_fcs_rport_offline_action(rport);
break;
case RPSM_EVENT_LOGO_RCVD:
case RPSM_EVENT_PRLO_RCVD:
bfa_sm_set_state(rport, bfa_fcs_rport_sm_fc4_logorcv);
bfa_fcs_rport_offline_action(rport);
break;
case RPSM_EVENT_PLOGI_COMP:
break;
default:
bfa_sm_fault(rport->fcs, event);
}
}
/**
* An SCN event is received in ONLINE state. NS query is being sent
* prior to ADISC authentication with rport. FC-4s are paused.
*/
static void
bfa_fcs_rport_sm_nsquery_sending(struct bfa_fcs_rport_s *rport,
enum rport_event event)
{
bfa_trc(rport->fcs, rport->pwwn);
bfa_trc(rport->fcs, rport->pid);
bfa_trc(rport->fcs, event);
switch (event) {
case RPSM_EVENT_FCXP_SENT:
bfa_sm_set_state(rport, bfa_fcs_rport_sm_nsquery);
break;
case RPSM_EVENT_DELETE:
bfa_sm_set_state(rport, bfa_fcs_rport_sm_fc4_logosend);
bfa_fcxp_walloc_cancel(rport->fcs->bfa, &rport->fcxp_wqe);
bfa_fcs_rport_offline_action(rport);
break;
case RPSM_EVENT_SCN:
/**
* ignore SCN, wait for response to query itself
*/
break;
case RPSM_EVENT_LOGO_RCVD:
case RPSM_EVENT_PRLO_RCVD:
bfa_sm_set_state(rport, bfa_fcs_rport_sm_fc4_logorcv);
bfa_fcxp_walloc_cancel(rport->fcs->bfa, &rport->fcxp_wqe);
bfa_fcs_rport_offline_action(rport);
break;
case RPSM_EVENT_LOGO_IMP:
rport->pid = 0;
bfa_sm_set_state(rport, bfa_fcs_rport_sm_offline);
bfa_fcxp_walloc_cancel(rport->fcs->bfa, &rport->fcxp_wqe);
bfa_timer_start(rport->fcs->bfa, &rport->timer,
bfa_fcs_rport_timeout, rport,
bfa_fcs_rport_del_timeout);
break;
case RPSM_EVENT_PLOGI_RCVD:
case RPSM_EVENT_ADDRESS_CHANGE:
case RPSM_EVENT_PLOGI_COMP:
bfa_sm_set_state(rport, bfa_fcs_rport_sm_fc4_offline);
bfa_fcxp_walloc_cancel(rport->fcs->bfa, &rport->fcxp_wqe);
bfa_fcs_rport_offline_action(rport);
break;
default:
bfa_sm_fault(rport->fcs, event);
}
}
/**
* An SCN event is received in ONLINE state. NS query is sent to rport.
* FC-4s are paused.
*/
static void
bfa_fcs_rport_sm_nsquery(struct bfa_fcs_rport_s *rport, enum rport_event event)
{
bfa_trc(rport->fcs, rport->pwwn);
bfa_trc(rport->fcs, rport->pid);
bfa_trc(rport->fcs, event);
switch (event) {
case RPSM_EVENT_ACCEPTED:
bfa_sm_set_state(rport, bfa_fcs_rport_sm_adisc_sending);
bfa_fcs_rport_send_adisc(rport, NULL);
break;
case RPSM_EVENT_FAILED:
rport->ns_retries++;
if (rport->ns_retries < BFA_FCS_RPORT_MAX_RETRIES) {
bfa_sm_set_state(rport,
bfa_fcs_rport_sm_nsquery_sending);
bfa_fcs_rport_send_gidpn(rport, NULL);
} else {
bfa_sm_set_state(rport, bfa_fcs_rport_sm_fc4_offline);
bfa_fcs_rport_offline_action(rport);
}
break;
case RPSM_EVENT_DELETE:
bfa_sm_set_state(rport, bfa_fcs_rport_sm_fc4_logosend);
bfa_fcxp_discard(rport->fcxp);
bfa_fcs_rport_offline_action(rport);
break;
case RPSM_EVENT_SCN:
break;
case RPSM_EVENT_LOGO_RCVD:
case RPSM_EVENT_PRLO_RCVD:
bfa_sm_set_state(rport, bfa_fcs_rport_sm_fc4_logorcv);
bfa_fcxp_discard(rport->fcxp);
bfa_fcs_rport_offline_action(rport);
break;
case RPSM_EVENT_PLOGI_COMP:
case RPSM_EVENT_ADDRESS_CHANGE:
case RPSM_EVENT_PLOGI_RCVD:
case RPSM_EVENT_LOGO_IMP:
bfa_sm_set_state(rport, bfa_fcs_rport_sm_fc4_offline);
bfa_fcxp_discard(rport->fcxp);
bfa_fcs_rport_offline_action(rport);
break;
default:
bfa_sm_fault(rport->fcs, event);
}
}
/**
* An SCN event is received in ONLINE state. ADISC is being sent for
* authenticating with rport. FC-4s are paused.
*/
static void
bfa_fcs_rport_sm_adisc_sending(struct bfa_fcs_rport_s *rport,
enum rport_event event)
{
bfa_trc(rport->fcs, rport->pwwn);
bfa_trc(rport->fcs, rport->pid);
bfa_trc(rport->fcs, event);
switch (event) {
case RPSM_EVENT_FCXP_SENT:
bfa_sm_set_state(rport, bfa_fcs_rport_sm_adisc);
break;
case RPSM_EVENT_DELETE:
bfa_sm_set_state(rport, bfa_fcs_rport_sm_fc4_logosend);
bfa_fcxp_walloc_cancel(rport->fcs->bfa, &rport->fcxp_wqe);
bfa_fcs_rport_offline_action(rport);
break;
case RPSM_EVENT_LOGO_IMP:
case RPSM_EVENT_ADDRESS_CHANGE:
bfa_sm_set_state(rport, bfa_fcs_rport_sm_fc4_offline);
bfa_fcxp_walloc_cancel(rport->fcs->bfa, &rport->fcxp_wqe);
bfa_fcs_rport_offline_action(rport);
break;
case RPSM_EVENT_LOGO_RCVD:
case RPSM_EVENT_PRLO_RCVD:
bfa_sm_set_state(rport, bfa_fcs_rport_sm_fc4_logorcv);
bfa_fcxp_walloc_cancel(rport->fcs->bfa, &rport->fcxp_wqe);
bfa_fcs_rport_offline_action(rport);
break;
case RPSM_EVENT_SCN:
break;
case RPSM_EVENT_PLOGI_RCVD:
bfa_sm_set_state(rport, bfa_fcs_rport_sm_fc4_offline);
bfa_fcxp_walloc_cancel(rport->fcs->bfa, &rport->fcxp_wqe);
bfa_fcs_rport_offline_action(rport);
break;
default:
bfa_sm_fault(rport->fcs, event);
}
}
/**
* An SCN event is received in ONLINE state. ADISC is to rport.
* FC-4s are paused.
*/
static void
bfa_fcs_rport_sm_adisc(struct bfa_fcs_rport_s *rport, enum rport_event event)
{
bfa_trc(rport->fcs, rport->pwwn);
bfa_trc(rport->fcs, rport->pid);
bfa_trc(rport->fcs, event);
switch (event) {
case RPSM_EVENT_ACCEPTED:
bfa_sm_set_state(rport, bfa_fcs_rport_sm_online);
bfa_fcs_rport_fc4_resume(rport);
break;
case RPSM_EVENT_PLOGI_RCVD:
/**
* Too complex to cleanup FC-4 & rport and then acc to PLOGI.
* At least go offline when a PLOGI is received.
*/
bfa_fcxp_discard(rport->fcxp);
/*
* !!! fall through !!!
*/
case RPSM_EVENT_FAILED:
case RPSM_EVENT_ADDRESS_CHANGE:
bfa_sm_set_state(rport, bfa_fcs_rport_sm_fc4_offline);
bfa_fcs_rport_offline_action(rport);
break;
case RPSM_EVENT_DELETE:
bfa_sm_set_state(rport, bfa_fcs_rport_sm_fc4_logosend);
bfa_fcxp_discard(rport->fcxp);
bfa_fcs_rport_offline_action(rport);
break;
case RPSM_EVENT_SCN:
/**
* already processing RSCN
*/
break;
case RPSM_EVENT_LOGO_IMP:
bfa_sm_set_state(rport, bfa_fcs_rport_sm_fc4_offline);
bfa_fcxp_discard(rport->fcxp);
bfa_fcs_rport_offline_action(rport);
break;
case RPSM_EVENT_LOGO_RCVD:
case RPSM_EVENT_PRLO_RCVD:
bfa_sm_set_state(rport, bfa_fcs_rport_sm_fc4_logorcv);
bfa_fcxp_discard(rport->fcxp);
bfa_fcs_rport_offline_action(rport);
break;
default:
bfa_sm_fault(rport->fcs, event);
}
}
/**
* Rport has sent LOGO. Awaiting FC-4 offline completion callback.
*/
static void
bfa_fcs_rport_sm_fc4_logorcv(struct bfa_fcs_rport_s *rport,
enum rport_event event)
{
bfa_trc(rport->fcs, rport->pwwn);
bfa_trc(rport->fcs, rport->pid);
bfa_trc(rport->fcs, event);
switch (event) {
case RPSM_EVENT_FC4_OFFLINE:
bfa_sm_set_state(rport, bfa_fcs_rport_sm_hcb_logorcv);
bfa_rport_offline(rport->bfa_rport);
break;
case RPSM_EVENT_DELETE:
bfa_sm_set_state(rport, bfa_fcs_rport_sm_fc4_logosend);
break;
case RPSM_EVENT_LOGO_RCVD:
case RPSM_EVENT_PRLO_RCVD:
case RPSM_EVENT_ADDRESS_CHANGE:
break;
default:
bfa_sm_fault(rport->fcs, event);
}
}
/**
* LOGO needs to be sent to rport. Awaiting FC-4 offline completion
* callback.
*/
static void
bfa_fcs_rport_sm_fc4_logosend(struct bfa_fcs_rport_s *rport,
enum rport_event event)
{
bfa_trc(rport->fcs, rport->pwwn);
bfa_trc(rport->fcs, rport->pid);
bfa_trc(rport->fcs, event);
switch (event) {
case RPSM_EVENT_FC4_OFFLINE:
bfa_sm_set_state(rport, bfa_fcs_rport_sm_hcb_logosend);
bfa_rport_offline(rport->bfa_rport);
break;
default:
bfa_sm_fault(rport->fcs, event);
}
}
/**
* Rport is going offline. Awaiting FC-4 offline completion callback.
*/
static void
bfa_fcs_rport_sm_fc4_offline(struct bfa_fcs_rport_s *rport,
enum rport_event event)
{
bfa_trc(rport->fcs, rport->pwwn);
bfa_trc(rport->fcs, rport->pid);
bfa_trc(rport->fcs, event);
switch (event) {
case RPSM_EVENT_FC4_OFFLINE:
bfa_sm_set_state(rport, bfa_fcs_rport_sm_hcb_offline);
bfa_rport_offline(rport->bfa_rport);
break;
case RPSM_EVENT_SCN:
case RPSM_EVENT_LOGO_IMP:
case RPSM_EVENT_LOGO_RCVD:
case RPSM_EVENT_PRLO_RCVD:
case RPSM_EVENT_ADDRESS_CHANGE:
/**
* rport is already going offline.
* SCN - ignore and wait till transitioning to offline state
*/
break;
case RPSM_EVENT_DELETE:
bfa_sm_set_state(rport, bfa_fcs_rport_sm_fc4_logosend);
break;
default:
bfa_sm_fault(rport->fcs, event);
}
}
/**
* Rport is offline. FC-4s are offline. Awaiting BFA rport offline
* callback.
*/
static void
bfa_fcs_rport_sm_hcb_offline(struct bfa_fcs_rport_s *rport,
enum rport_event event)
{
bfa_trc(rport->fcs, rport->pwwn);
bfa_trc(rport->fcs, rport->pid);
bfa_trc(rport->fcs, event);
switch (event) {
case RPSM_EVENT_HCB_OFFLINE:
case RPSM_EVENT_ADDRESS_CHANGE:
if (bfa_fcs_port_is_online(rport->port)) {
if (bfa_fcs_fabric_is_switched(rport->port->fabric)) {
bfa_sm_set_state(rport,
bfa_fcs_rport_sm_nsdisc_sending);
rport->ns_retries = 0;
bfa_fcs_rport_send_gidpn(rport, NULL);
} else {
bfa_sm_set_state(rport,
bfa_fcs_rport_sm_plogi_sending);
rport->plogi_retries = 0;
bfa_fcs_rport_send_plogi(rport, NULL);
}
} else {
rport->pid = 0;
bfa_sm_set_state(rport, bfa_fcs_rport_sm_offline);
bfa_timer_start(rport->fcs->bfa, &rport->timer,
bfa_fcs_rport_timeout, rport,
bfa_fcs_rport_del_timeout);
}
break;
case RPSM_EVENT_DELETE:
bfa_sm_set_state(rport, bfa_fcs_rport_sm_uninit);
bfa_fcs_rport_free(rport);
break;
case RPSM_EVENT_SCN:
case RPSM_EVENT_LOGO_RCVD:
case RPSM_EVENT_PRLO_RCVD:
/**
* Ignore, already offline.
*/
break;
default:
bfa_sm_fault(rport->fcs, event);
}
}
/**
* Rport is offline. FC-4s are offline. Awaiting BFA rport offline
* callback to send LOGO accept.
*/
static void
bfa_fcs_rport_sm_hcb_logorcv(struct bfa_fcs_rport_s *rport,
enum rport_event event)
{
bfa_trc(rport->fcs, rport->pwwn);
bfa_trc(rport->fcs, rport->pid);
bfa_trc(rport->fcs, event);
switch (event) {
case RPSM_EVENT_HCB_OFFLINE:
case RPSM_EVENT_ADDRESS_CHANGE:
if (rport->pid && (rport->prlo == BFA_TRUE))
bfa_fcs_rport_send_prlo_acc(rport);
if (rport->pid && (rport->prlo == BFA_FALSE))
bfa_fcs_rport_send_logo_acc(rport);
/*
* If the lport is online and if the rport is not a well known
* address port, we try to re-discover the r-port.
*/
if (bfa_fcs_port_is_online(rport->port)
&& (!BFA_FCS_PID_IS_WKA(rport->pid))) {
bfa_sm_set_state(rport,
bfa_fcs_rport_sm_nsdisc_sending);
rport->ns_retries = 0;
bfa_fcs_rport_send_gidpn(rport, NULL);
} else {
/*
* if it is not a well known address, reset the pid to
*
*/
if (!BFA_FCS_PID_IS_WKA(rport->pid))
rport->pid = 0;
bfa_sm_set_state(rport, bfa_fcs_rport_sm_offline);
bfa_timer_start(rport->fcs->bfa, &rport->timer,
bfa_fcs_rport_timeout, rport,
bfa_fcs_rport_del_timeout);
}
break;
case RPSM_EVENT_DELETE:
bfa_sm_set_state(rport, bfa_fcs_rport_sm_hcb_logosend);
break;
case RPSM_EVENT_LOGO_IMP:
bfa_sm_set_state(rport, bfa_fcs_rport_sm_hcb_offline);
break;
case RPSM_EVENT_LOGO_RCVD:
case RPSM_EVENT_PRLO_RCVD:
/**
* Ignore - already processing a LOGO.
*/
break;
default:
bfa_sm_fault(rport->fcs, event);
}
}
/**
* Rport is being deleted. FC-4s are offline. Awaiting BFA rport offline
* callback to send LOGO.
*/
static void
bfa_fcs_rport_sm_hcb_logosend(struct bfa_fcs_rport_s *rport,
enum rport_event event)
{
bfa_trc(rport->fcs, rport->pwwn);
bfa_trc(rport->fcs, rport->pid);
bfa_trc(rport->fcs, event);
switch (event) {
case RPSM_EVENT_HCB_OFFLINE:
bfa_sm_set_state(rport, bfa_fcs_rport_sm_logo_sending);
bfa_fcs_rport_send_logo(rport, NULL);
break;
case RPSM_EVENT_LOGO_RCVD:
case RPSM_EVENT_PRLO_RCVD:
case RPSM_EVENT_ADDRESS_CHANGE:
break;
default:
bfa_sm_fault(rport->fcs, event);
}
}
/**
* Rport is being deleted. FC-4s are offline. LOGO is being sent.
*/
static void
bfa_fcs_rport_sm_logo_sending(struct bfa_fcs_rport_s *rport,
enum rport_event event)
{
bfa_trc(rport->fcs, rport->pwwn);
bfa_trc(rport->fcs, rport->pid);
bfa_trc(rport->fcs, event);
switch (event) {
case RPSM_EVENT_FCXP_SENT:
/*
* Once LOGO is sent, we donot wait for the response
*/
bfa_sm_set_state(rport, bfa_fcs_rport_sm_uninit);
bfa_fcs_rport_free(rport);
break;
case RPSM_EVENT_SCN:
case RPSM_EVENT_ADDRESS_CHANGE:
break;
case RPSM_EVENT_LOGO_RCVD:
case RPSM_EVENT_PRLO_RCVD:
bfa_sm_set_state(rport, bfa_fcs_rport_sm_uninit);
bfa_fcxp_walloc_cancel(rport->fcs->bfa, &rport->fcxp_wqe);
bfa_fcs_rport_free(rport);
break;
default:
bfa_sm_fault(rport->fcs, event);
}
}
/**
* Rport is offline. FC-4s are offline. BFA rport is offline.
* Timer active to delete stale rport.
*/
static void
bfa_fcs_rport_sm_offline(struct bfa_fcs_rport_s *rport, enum rport_event event)
{
bfa_trc(rport->fcs, rport->pwwn);
bfa_trc(rport->fcs, rport->pid);
bfa_trc(rport->fcs, event);
switch (event) {
case RPSM_EVENT_TIMEOUT:
bfa_sm_set_state(rport, bfa_fcs_rport_sm_uninit);
bfa_fcs_rport_free(rport);
break;
case RPSM_EVENT_SCN:
case RPSM_EVENT_ADDRESS_CHANGE:
bfa_sm_set_state(rport, bfa_fcs_rport_sm_nsdisc_sending);
bfa_timer_stop(&rport->timer);
rport->ns_retries = 0;
bfa_fcs_rport_send_gidpn(rport, NULL);
break;
case RPSM_EVENT_DELETE:
bfa_sm_set_state(rport, bfa_fcs_rport_sm_uninit);
bfa_timer_stop(&rport->timer);
bfa_fcs_rport_free(rport);
break;
case RPSM_EVENT_PLOGI_RCVD:
bfa_sm_set_state(rport, bfa_fcs_rport_sm_plogiacc_sending);
bfa_timer_stop(&rport->timer);
bfa_fcs_rport_send_plogiacc(rport, NULL);
break;
case RPSM_EVENT_LOGO_RCVD:
case RPSM_EVENT_PRLO_RCVD:
case RPSM_EVENT_LOGO_IMP:
break;
case RPSM_EVENT_PLOGI_COMP:
bfa_sm_set_state(rport, bfa_fcs_rport_sm_hal_online);
bfa_timer_stop(&rport->timer);
bfa_fcs_rport_hal_online(rport);
break;
case RPSM_EVENT_PLOGI_SEND:
bfa_timer_stop(&rport->timer);
bfa_sm_set_state(rport, bfa_fcs_rport_sm_plogi_sending);
rport->plogi_retries = 0;
bfa_fcs_rport_send_plogi(rport, NULL);
break;
default:
bfa_sm_fault(rport->fcs, event);
}
}
/**
* Rport address has changed. Nameserver discovery request is being sent.
*/
static void
bfa_fcs_rport_sm_nsdisc_sending(struct bfa_fcs_rport_s *rport,
enum rport_event event)
{
bfa_trc(rport->fcs, rport->pwwn);
bfa_trc(rport->fcs, rport->pid);
bfa_trc(rport->fcs, event);
switch (event) {
case RPSM_EVENT_FCXP_SENT:
bfa_sm_set_state(rport, bfa_fcs_rport_sm_nsdisc_sent);
break;
case RPSM_EVENT_DELETE:
bfa_sm_set_state(rport, bfa_fcs_rport_sm_uninit);
bfa_fcxp_walloc_cancel(rport->fcs->bfa, &rport->fcxp_wqe);
bfa_fcs_rport_free(rport);
break;
case RPSM_EVENT_PLOGI_RCVD:
bfa_sm_set_state(rport, bfa_fcs_rport_sm_plogiacc_sending);
bfa_fcxp_walloc_cancel(rport->fcs->bfa, &rport->fcxp_wqe);
bfa_fcs_rport_send_plogiacc(rport, NULL);
break;
case RPSM_EVENT_SCN:
case RPSM_EVENT_LOGO_RCVD:
case RPSM_EVENT_PRLO_RCVD:
case RPSM_EVENT_PLOGI_SEND:
break;
case RPSM_EVENT_ADDRESS_CHANGE:
rport->ns_retries = 0; /* reset the retry count */
break;
case RPSM_EVENT_LOGO_IMP:
bfa_sm_set_state(rport, bfa_fcs_rport_sm_offline);
bfa_fcxp_walloc_cancel(rport->fcs->bfa, &rport->fcxp_wqe);
bfa_timer_start(rport->fcs->bfa, &rport->timer,
bfa_fcs_rport_timeout, rport,
bfa_fcs_rport_del_timeout);
break;
case RPSM_EVENT_PLOGI_COMP:
bfa_sm_set_state(rport, bfa_fcs_rport_sm_hal_online);
bfa_fcxp_walloc_cancel(rport->fcs->bfa, &rport->fcxp_wqe);
bfa_fcs_rport_hal_online(rport);
break;
default:
bfa_sm_fault(rport->fcs, event);
}
}
/**
* Nameserver discovery failed. Waiting for timeout to retry.
*/
static void
bfa_fcs_rport_sm_nsdisc_retry(struct bfa_fcs_rport_s *rport,
enum rport_event event)
{
bfa_trc(rport->fcs, rport->pwwn);
bfa_trc(rport->fcs, rport->pid);
bfa_trc(rport->fcs, event);
switch (event) {
case RPSM_EVENT_TIMEOUT:
bfa_sm_set_state(rport, bfa_fcs_rport_sm_nsdisc_sending);
bfa_fcs_rport_send_gidpn(rport, NULL);
break;
case RPSM_EVENT_SCN:
case RPSM_EVENT_ADDRESS_CHANGE:
bfa_sm_set_state(rport, bfa_fcs_rport_sm_nsdisc_sending);
bfa_timer_stop(&rport->timer);
rport->ns_retries = 0;
bfa_fcs_rport_send_gidpn(rport, NULL);
break;
case RPSM_EVENT_DELETE:
bfa_sm_set_state(rport, bfa_fcs_rport_sm_uninit);
bfa_timer_stop(&rport->timer);
bfa_fcs_rport_free(rport);
break;
case RPSM_EVENT_PLOGI_RCVD:
bfa_sm_set_state(rport, bfa_fcs_rport_sm_plogiacc_sending);
bfa_timer_stop(&rport->timer);
bfa_fcs_rport_send_plogiacc(rport, NULL);
break;
case RPSM_EVENT_LOGO_IMP:
rport->pid = 0;
bfa_sm_set_state(rport, bfa_fcs_rport_sm_offline);
bfa_timer_stop(&rport->timer);
bfa_timer_start(rport->fcs->bfa, &rport->timer,
bfa_fcs_rport_timeout, rport,
bfa_fcs_rport_del_timeout);
break;
case RPSM_EVENT_LOGO_RCVD:
bfa_fcs_rport_send_logo_acc(rport);
break;
case RPSM_EVENT_PRLO_RCVD:
bfa_fcs_rport_send_prlo_acc(rport);
break;
case RPSM_EVENT_PLOGI_COMP:
bfa_sm_set_state(rport, bfa_fcs_rport_sm_hal_online);
bfa_timer_stop(&rport->timer);
bfa_fcs_rport_hal_online(rport);
break;
default:
bfa_sm_fault(rport->fcs, event);
}
}
/**
* Rport address has changed. Nameserver discovery request is sent.
*/
static void
bfa_fcs_rport_sm_nsdisc_sent(struct bfa_fcs_rport_s *rport,
enum rport_event event)
{
bfa_trc(rport->fcs, rport->pwwn);
bfa_trc(rport->fcs, rport->pid);
bfa_trc(rport->fcs, event);
switch (event) {
case RPSM_EVENT_ACCEPTED:
case RPSM_EVENT_ADDRESS_CHANGE:
if (rport->pid) {
bfa_sm_set_state(rport, bfa_fcs_rport_sm_plogi_sending);
bfa_fcs_rport_send_plogi(rport, NULL);
} else {
bfa_sm_set_state(rport,
bfa_fcs_rport_sm_nsdisc_sending);
rport->ns_retries = 0;
bfa_fcs_rport_send_gidpn(rport, NULL);
}
break;
case RPSM_EVENT_FAILED:
rport->ns_retries++;
if (rport->ns_retries < BFA_FCS_RPORT_MAX_RETRIES) {
bfa_sm_set_state(rport,
bfa_fcs_rport_sm_nsdisc_sending);
bfa_fcs_rport_send_gidpn(rport, NULL);
} else {
rport->pid = 0;
bfa_sm_set_state(rport, bfa_fcs_rport_sm_offline);
bfa_timer_start(rport->fcs->bfa, &rport->timer,
bfa_fcs_rport_timeout, rport,
bfa_fcs_rport_del_timeout);
};
break;
case RPSM_EVENT_DELETE:
bfa_sm_set_state(rport, bfa_fcs_rport_sm_uninit);
bfa_fcxp_discard(rport->fcxp);
bfa_fcs_rport_free(rport);
break;
case RPSM_EVENT_PLOGI_RCVD:
bfa_sm_set_state(rport, bfa_fcs_rport_sm_plogiacc_sending);
bfa_fcxp_discard(rport->fcxp);
bfa_fcs_rport_send_plogiacc(rport, NULL);
break;
case RPSM_EVENT_LOGO_IMP:
rport->pid = 0;
bfa_sm_set_state(rport, bfa_fcs_rport_sm_offline);
bfa_fcxp_discard(rport->fcxp);
bfa_timer_start(rport->fcs->bfa, &rport->timer,
bfa_fcs_rport_timeout, rport,
bfa_fcs_rport_del_timeout);
break;
case RPSM_EVENT_PRLO_RCVD:
bfa_fcs_rport_send_prlo_acc(rport);
break;
case RPSM_EVENT_SCN:
/**
* ignore, wait for NS query response
*/
break;
case RPSM_EVENT_LOGO_RCVD:
/**
* Not logged-in yet. Accept LOGO.
*/
bfa_fcs_rport_send_logo_acc(rport);
break;
case RPSM_EVENT_PLOGI_COMP:
bfa_sm_set_state(rport, bfa_fcs_rport_sm_hal_online);
bfa_fcxp_discard(rport->fcxp);
bfa_fcs_rport_hal_online(rport);
break;
default:
bfa_sm_fault(rport->fcs, event);
}
}
/**
* fcs_rport_private FCS RPORT provate functions
*/
static void
bfa_fcs_rport_send_plogi(void *rport_cbarg, struct bfa_fcxp_s *fcxp_alloced)
{
struct bfa_fcs_rport_s *rport = rport_cbarg;
struct bfa_fcs_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, &rport->fcxp_wqe,
bfa_fcs_rport_send_plogi, rport);
return;
}
rport->fcxp = fcxp;
len = fc_plogi_build(&fchs, bfa_fcxp_get_reqbuf(fcxp), rport->pid,
bfa_fcs_port_get_fcid(port), 0,
port->port_cfg.pwwn, port->port_cfg.nwwn,
bfa_fcport_get_maxfrsize(port->fcs->bfa));
bfa_fcxp_send(fcxp, NULL, port->fabric->vf_id, port->lp_tag, BFA_FALSE,
FC_CLASS_3, len, &fchs, bfa_fcs_rport_plogi_response,
(void *)rport, FC_MAX_PDUSZ, FC_ELS_TOV);
rport->stats.plogis++;
bfa_sm_send_event(rport, RPSM_EVENT_FCXP_SENT);
}
static void
bfa_fcs_rport_plogi_response(void *fcsarg, struct bfa_fcxp_s *fcxp, void *cbarg,
bfa_status_t req_status, u32 rsp_len,
u32 resid_len, struct fchs_s *rsp_fchs)
{
struct bfa_fcs_rport_s *rport = (struct bfa_fcs_rport_s *)cbarg;
struct fc_logi_s *plogi_rsp;
struct fc_ls_rjt_s *ls_rjt;
struct bfa_fcs_rport_s *twin;
struct list_head *qe;
bfa_trc(rport->fcs, rport->pwwn);
/*
* Sanity Checks
*/
if (req_status != BFA_STATUS_OK) {
bfa_trc(rport->fcs, req_status);
rport->stats.plogi_failed++;
bfa_sm_send_event(rport, RPSM_EVENT_FAILED);
return;
}
plogi_rsp = (struct fc_logi_s *) BFA_FCXP_RSP_PLD(fcxp);
/**
* Check for failure first.
*/
if (plogi_rsp->els_cmd.els_code != FC_ELS_ACC) {
ls_rjt = (struct fc_ls_rjt_s *) BFA_FCXP_RSP_PLD(fcxp);
bfa_trc(rport->fcs, ls_rjt->reason_code);
bfa_trc(rport->fcs, ls_rjt->reason_code_expl);
rport->stats.plogi_rejects++;
bfa_sm_send_event(rport, RPSM_EVENT_FAILED);
return;
}
/**
* PLOGI is complete. Make sure this device is not one of the known
* device with a new FC port address.
*/
list_for_each(qe, &rport->port->rport_q) {
twin = (struct bfa_fcs_rport_s *)qe;
if (twin == rport)
continue;
if (!rport->pwwn && (plogi_rsp->port_name == twin->pwwn)) {
bfa_trc(rport->fcs, twin->pid);
bfa_trc(rport->fcs, rport->pid);
/*
* Update plogi stats in twin
*/
twin->stats.plogis += rport->stats.plogis;
twin->stats.plogi_rejects += rport->stats.plogi_rejects;
twin->stats.plogi_timeouts +=
rport->stats.plogi_timeouts;
twin->stats.plogi_failed += rport->stats.plogi_failed;
twin->stats.plogi_rcvd += rport->stats.plogi_rcvd;
twin->stats.plogi_accs++;
bfa_fcs_rport_delete(rport);
bfa_fcs_rport_update(twin, plogi_rsp);
twin->pid = rsp_fchs->s_id;
bfa_sm_send_event(twin, RPSM_EVENT_PLOGI_COMP);
return;
}
}
/**
* Normal login path -- no evil twins.
*/
rport->stats.plogi_accs++;
bfa_fcs_rport_update(rport, plogi_rsp);
bfa_sm_send_event(rport, RPSM_EVENT_ACCEPTED);
}
static void
bfa_fcs_rport_send_plogiacc(void *rport_cbarg, struct bfa_fcxp_s *fcxp_alloced)
{
struct bfa_fcs_rport_s *rport = rport_cbarg;
struct bfa_fcs_port_s *port = rport->port;
struct fchs_s fchs;
int len;
struct bfa_fcxp_s *fcxp;
bfa_trc(rport->fcs, rport->pwwn);
bfa_trc(rport->fcs, rport->reply_oxid);
fcxp = fcxp_alloced ? fcxp_alloced : bfa_fcs_fcxp_alloc(port->fcs);
if (!fcxp) {
bfa_fcxp_alloc_wait(port->fcs->bfa, &rport->fcxp_wqe,
bfa_fcs_rport_send_plogiacc, rport);
return;
}
rport->fcxp = fcxp;
len = fc_plogi_acc_build(&fchs, bfa_fcxp_get_reqbuf(fcxp), rport->pid,
bfa_fcs_port_get_fcid(port), rport->reply_oxid,
port->port_cfg.pwwn, port->port_cfg.nwwn,
bfa_fcport_get_maxfrsize(port->fcs->bfa));
bfa_fcxp_send(fcxp, NULL, port->fabric->vf_id, port->lp_tag, BFA_FALSE,
FC_CLASS_3, len, &fchs, NULL, NULL, FC_MAX_PDUSZ, 0);
bfa_sm_send_event(rport, RPSM_EVENT_FCXP_SENT);
}
static void
bfa_fcs_rport_send_adisc(void *rport_cbarg, struct bfa_fcxp_s *fcxp_alloced)
{
struct bfa_fcs_rport_s *rport = rport_cbarg;
struct bfa_fcs_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, &rport->fcxp_wqe,
bfa_fcs_rport_send_adisc, rport);
return;
}
rport->fcxp = fcxp;
len = fc_adisc_build(&fchs, bfa_fcxp_get_reqbuf(fcxp), rport->pid,
bfa_fcs_port_get_fcid(port), 0,
port->port_cfg.pwwn, port->port_cfg.nwwn);
bfa_fcxp_send(fcxp, NULL, port->fabric->vf_id, port->lp_tag, BFA_FALSE,
FC_CLASS_3, len, &fchs, bfa_fcs_rport_adisc_response,
rport, FC_MAX_PDUSZ, FC_ELS_TOV);
rport->stats.adisc_sent++;
bfa_sm_send_event(rport, RPSM_EVENT_FCXP_SENT);
}
static void
bfa_fcs_rport_adisc_response(void *fcsarg, struct bfa_fcxp_s *fcxp, void *cbarg,
bfa_status_t req_status, u32 rsp_len,
u32 resid_len, struct fchs_s *rsp_fchs)
{
struct bfa_fcs_rport_s *rport = (struct bfa_fcs_rport_s *)cbarg;
void *pld = bfa_fcxp_get_rspbuf(fcxp);
struct fc_ls_rjt_s *ls_rjt;
if (req_status != BFA_STATUS_OK) {
bfa_trc(rport->fcs, req_status);
rport->stats.adisc_failed++;
bfa_sm_send_event(rport, RPSM_EVENT_FAILED);
return;
}
if (fc_adisc_rsp_parse((struct fc_adisc_s *)pld, rsp_len, rport->pwwn,
rport->nwwn) == FC_PARSE_OK) {
rport->stats.adisc_accs++;
bfa_sm_send_event(rport, RPSM_EVENT_ACCEPTED);
return;
}
rport->stats.adisc_rejects++;
ls_rjt = pld;
bfa_trc(rport->fcs, ls_rjt->els_cmd.els_code);
bfa_trc(rport->fcs, ls_rjt->reason_code);
bfa_trc(rport->fcs, ls_rjt->reason_code_expl);
bfa_sm_send_event(rport, RPSM_EVENT_FAILED);
}
static void
bfa_fcs_rport_send_gidpn(void *rport_cbarg, struct bfa_fcxp_s *fcxp_alloced)
{
struct bfa_fcs_rport_s *rport = rport_cbarg;
struct bfa_fcs_port_s *port = rport->port;
struct fchs_s fchs;
struct bfa_fcxp_s *fcxp;
int len;
bfa_trc(rport->fcs, rport->pid);
fcxp = fcxp_alloced ? fcxp_alloced : bfa_fcs_fcxp_alloc(port->fcs);
if (!fcxp) {
bfa_fcxp_alloc_wait(port->fcs->bfa, &rport->fcxp_wqe,
bfa_fcs_rport_send_gidpn, rport);
return;
}
rport->fcxp = fcxp;
len = fc_gidpn_build(&fchs, bfa_fcxp_get_reqbuf(fcxp),
bfa_fcs_port_get_fcid(port), 0, rport->pwwn);
bfa_fcxp_send(fcxp, NULL, port->fabric->vf_id, port->lp_tag, BFA_FALSE,
FC_CLASS_3, len, &fchs, bfa_fcs_rport_gidpn_response,
(void *)rport, FC_MAX_PDUSZ, FC_FCCT_TOV);
bfa_sm_send_event(rport, RPSM_EVENT_FCXP_SENT);
}
static void
bfa_fcs_rport_gidpn_response(void *fcsarg, struct bfa_fcxp_s *fcxp, void *cbarg,
bfa_status_t req_status, u32 rsp_len,
u32 resid_len, struct fchs_s *rsp_fchs)
{
struct bfa_fcs_rport_s *rport = (struct bfa_fcs_rport_s *)cbarg;
struct bfa_fcs_rport_s *twin;
struct list_head *qe;
struct ct_hdr_s *cthdr;
struct fcgs_gidpn_resp_s *gidpn_rsp;
bfa_trc(rport->fcs, rport->pwwn);
cthdr = (struct ct_hdr_s *) BFA_FCXP_RSP_PLD(fcxp);
cthdr->cmd_rsp_code = bfa_os_ntohs(cthdr->cmd_rsp_code);
if (cthdr->cmd_rsp_code == CT_RSP_ACCEPT) {
/*
* Check if the pid is the same as before.
*/
gidpn_rsp = (struct fcgs_gidpn_resp_s *) (cthdr + 1);
if (gidpn_rsp->dap == rport->pid) {
/*
* Device is online
*/
bfa_sm_send_event(rport, RPSM_EVENT_ACCEPTED);
} else {
/*
* Device's PID has changed. We need to cleanup and
* re-login. If there is another device with the the
* newly discovered pid, send an scn notice so that its
* new pid can be discovered.
*/
list_for_each(qe, &rport->port->rport_q) {
twin = (struct bfa_fcs_rport_s *)qe;
if (twin == rport)
continue;
if (gidpn_rsp->dap == twin->pid) {
bfa_trc(rport->fcs, twin->pid);
bfa_trc(rport->fcs, rport->pid);
twin->pid = 0;
bfa_sm_send_event(twin,
RPSM_EVENT_ADDRESS_CHANGE);
}
}
rport->pid = gidpn_rsp->dap;
bfa_sm_send_event(rport, RPSM_EVENT_ADDRESS_CHANGE);
}
return;
}
/*
* Reject Response
*/
switch (cthdr->reason_code) {
case CT_RSN_LOGICAL_BUSY:
/*
* Need to retry
*/
bfa_sm_send_event(rport, RPSM_EVENT_TIMEOUT);
break;
case CT_RSN_UNABLE_TO_PERF:
/*
* device doesn't exist : Start timer to cleanup this later.
*/
bfa_sm_send_event(rport, RPSM_EVENT_FAILED);
break;
default:
bfa_sm_send_event(rport, RPSM_EVENT_FAILED);
break;
}
}
/**
* Called to send a logout to the rport.
*/
static void
bfa_fcs_rport_send_logo(void *rport_cbarg, struct bfa_fcxp_s *fcxp_alloced)
{
struct bfa_fcs_rport_s *rport = rport_cbarg;
struct bfa_fcs_port_s *port;
struct fchs_s fchs;
struct bfa_fcxp_s *fcxp;
u16 len;
bfa_trc(rport->fcs, rport->pid);
port = rport->port;
fcxp = fcxp_alloced ? fcxp_alloced : bfa_fcs_fcxp_alloc(port->fcs);
if (!fcxp) {
bfa_fcxp_alloc_wait(port->fcs->bfa, &rport->fcxp_wqe,
bfa_fcs_rport_send_logo, rport);
return;
}
rport->fcxp = fcxp;
len = fc_logo_build(&fchs, bfa_fcxp_get_reqbuf(fcxp), rport->pid,
bfa_fcs_port_get_fcid(port), 0,
bfa_fcs_port_get_pwwn(port));
bfa_fcxp_send(fcxp, NULL, port->fabric->vf_id, port->lp_tag, BFA_FALSE,
FC_CLASS_3, len, &fchs, NULL, rport, FC_MAX_PDUSZ,
FC_ELS_TOV);
rport->stats.logos++;
bfa_fcxp_discard(rport->fcxp);
bfa_sm_send_event(rport, RPSM_EVENT_FCXP_SENT);
}
/**
* Send ACC for a LOGO received.
*/
static void
bfa_fcs_rport_send_logo_acc(void *rport_cbarg)
{
struct bfa_fcs_rport_s *rport = rport_cbarg;
struct bfa_fcs_port_s *port;
struct fchs_s fchs;
struct bfa_fcxp_s *fcxp;
u16 len;
bfa_trc(rport->fcs, rport->pid);
port = rport->port;
fcxp = bfa_fcs_fcxp_alloc(port->fcs);
if (!fcxp)
return;
rport->stats.logo_rcvd++;
len = fc_logo_acc_build(&fchs, bfa_fcxp_get_reqbuf(fcxp), rport->pid,
bfa_fcs_port_get_fcid(port), rport->reply_oxid);
bfa_fcxp_send(fcxp, NULL, port->fabric->vf_id, port->lp_tag, BFA_FALSE,
FC_CLASS_3, len, &fchs, NULL, NULL, FC_MAX_PDUSZ, 0);
}
/**
* This routine will be called by bfa_timer on timer timeouts.
*
* param[in] rport - pointer to bfa_fcs_port_ns_t.
* param[out] rport_status - pointer to return vport status in
*
* return
* void
*
* Special Considerations:
*
* note
*/
static void
bfa_fcs_rport_timeout(void *arg)
{
struct bfa_fcs_rport_s *rport = (struct bfa_fcs_rport_s *)arg;
rport->stats.plogi_timeouts++;
bfa_sm_send_event(rport, RPSM_EVENT_TIMEOUT);
}
static void
bfa_fcs_rport_process_prli(struct bfa_fcs_rport_s *rport,
struct fchs_s *rx_fchs, u16 len)
{
struct bfa_fcxp_s *fcxp;
struct fchs_s fchs;
struct bfa_fcs_port_s *port = rport->port;
struct fc_prli_s *prli;
bfa_trc(port->fcs, rx_fchs->s_id);
bfa_trc(port->fcs, rx_fchs->d_id);
rport->stats.prli_rcvd++;
if (BFA_FCS_VPORT_IS_TARGET_MODE(port)) {
/*
* Target Mode : Let the fcptm handle it
*/
bfa_fcs_tin_rx_prli(rport->tin, rx_fchs, len);
return;
}
/*
* We are either in Initiator or ipfc Mode
*/
prli = (struct fc_prli_s *) (rx_fchs + 1);
if (prli->parampage.servparams.initiator) {
bfa_trc(rport->fcs, prli->parampage.type);
rport->scsi_function = BFA_RPORT_INITIATOR;
bfa_fcs_itnim_is_initiator(rport->itnim);
} else {
/*
* @todo: PRLI from a target ?
*/
bfa_trc(port->fcs, rx_fchs->s_id);
rport->scsi_function = BFA_RPORT_TARGET;
}
fcxp = bfa_fcs_fcxp_alloc(port->fcs);
if (!fcxp)
return;
len = fc_prli_acc_build(&fchs, bfa_fcxp_get_reqbuf(fcxp), rx_fchs->s_id,
bfa_fcs_port_get_fcid(port), rx_fchs->ox_id,
port->port_cfg.roles);
bfa_fcxp_send(fcxp, NULL, port->fabric->vf_id, port->lp_tag, BFA_FALSE,
FC_CLASS_3, len, &fchs, NULL, NULL, FC_MAX_PDUSZ, 0);
}
static void
bfa_fcs_rport_process_rpsc(struct bfa_fcs_rport_s *rport,
struct fchs_s *rx_fchs, u16 len)
{
struct bfa_fcxp_s *fcxp;
struct fchs_s fchs;
struct bfa_fcs_port_s *port = rport->port;
struct fc_rpsc_speed_info_s speeds;
struct bfa_pport_attr_s pport_attr;
bfa_trc(port->fcs, rx_fchs->s_id);
bfa_trc(port->fcs, rx_fchs->d_id);
rport->stats.rpsc_rcvd++;
speeds.port_speed_cap =
RPSC_SPEED_CAP_1G | RPSC_SPEED_CAP_2G | RPSC_SPEED_CAP_4G |
RPSC_SPEED_CAP_8G;
/*
* get curent speed from pport attributes from BFA
*/
bfa_fcport_get_attr(port->fcs->bfa, &pport_attr);
speeds.port_op_speed = fc_bfa_speed_to_rpsc_operspeed(pport_attr.speed);
fcxp = bfa_fcs_fcxp_alloc(port->fcs);
if (!fcxp)
return;
len = fc_rpsc_acc_build(&fchs, bfa_fcxp_get_reqbuf(fcxp), rx_fchs->s_id,
bfa_fcs_port_get_fcid(port), rx_fchs->ox_id,
&speeds);
bfa_fcxp_send(fcxp, NULL, port->fabric->vf_id, port->lp_tag, BFA_FALSE,
FC_CLASS_3, len, &fchs, NULL, NULL, FC_MAX_PDUSZ, 0);
}
static void
bfa_fcs_rport_process_adisc(struct bfa_fcs_rport_s *rport,
struct fchs_s *rx_fchs, u16 len)
{
struct bfa_fcxp_s *fcxp;
struct fchs_s fchs;
struct bfa_fcs_port_s *port = rport->port;
struct fc_adisc_s *adisc;
bfa_trc(port->fcs, rx_fchs->s_id);
bfa_trc(port->fcs, rx_fchs->d_id);
rport->stats.adisc_rcvd++;
if (BFA_FCS_VPORT_IS_TARGET_MODE(port)) {
/*
* @todo : Target Mode handling
*/
bfa_trc(port->fcs, rx_fchs->d_id);
bfa_assert(0);
return;
}
adisc = (struct fc_adisc_s *) (rx_fchs + 1);
/*
* Accept if the itnim for this rport is online. Else reject the ADISC
*/
if (bfa_fcs_itnim_get_online_state(rport->itnim) == BFA_STATUS_OK) {
fcxp = bfa_fcs_fcxp_alloc(port->fcs);
if (!fcxp)
return;
len = fc_adisc_acc_build(&fchs, bfa_fcxp_get_reqbuf(fcxp),
rx_fchs->s_id,
bfa_fcs_port_get_fcid(port),
rx_fchs->ox_id, port->port_cfg.pwwn,
port->port_cfg.nwwn);
bfa_fcxp_send(fcxp, NULL, port->fabric->vf_id, port->lp_tag,
BFA_FALSE, FC_CLASS_3, len, &fchs, NULL, NULL,
FC_MAX_PDUSZ, 0);
} else {
rport->stats.adisc_rejected++;
bfa_fcs_rport_send_ls_rjt(rport, rx_fchs,
FC_LS_RJT_RSN_UNABLE_TO_PERF_CMD,
FC_LS_RJT_EXP_LOGIN_REQUIRED);
}
}
static void
bfa_fcs_rport_hal_online(struct bfa_fcs_rport_s *rport)
{
struct bfa_fcs_port_s *port = rport->port;
struct bfa_rport_info_s rport_info;
rport_info.pid = rport->pid;
rport_info.local_pid = port->pid;
rport_info.lp_tag = port->lp_tag;
rport_info.vf_id = port->fabric->vf_id;
rport_info.vf_en = port->fabric->is_vf;
rport_info.fc_class = rport->fc_cos;
rport_info.cisc = rport->cisc;
rport_info.max_frmsz = rport->maxfrsize;
bfa_rport_online(rport->bfa_rport, &rport_info);
}
static void
bfa_fcs_rport_fc4_pause(struct bfa_fcs_rport_s *rport)
{
if (bfa_fcs_port_is_initiator(rport->port))
bfa_fcs_itnim_pause(rport->itnim);
if (bfa_fcs_port_is_target(rport->port))
bfa_fcs_tin_pause(rport->tin);
}
static void
bfa_fcs_rport_fc4_resume(struct bfa_fcs_rport_s *rport)
{
if (bfa_fcs_port_is_initiator(rport->port))
bfa_fcs_itnim_resume(rport->itnim);
if (bfa_fcs_port_is_target(rport->port))
bfa_fcs_tin_resume(rport->tin);
}
static struct bfa_fcs_rport_s *
bfa_fcs_rport_alloc(struct bfa_fcs_port_s *port, wwn_t pwwn, u32 rpid)
{
struct bfa_fcs_s *fcs = port->fcs;
struct bfa_fcs_rport_s *rport;
struct bfad_rport_s *rport_drv;
/**
* allocate rport
*/
if (bfa_fcb_rport_alloc(fcs->bfad, &rport, &rport_drv)
!= BFA_STATUS_OK) {
bfa_trc(fcs, rpid);
return NULL;
}
/*
* Initialize r-port
*/
rport->port = port;
rport->fcs = fcs;
rport->rp_drv = rport_drv;
rport->pid = rpid;
rport->pwwn = pwwn;
/**
* allocate BFA rport
*/
rport->bfa_rport = bfa_rport_create(port->fcs->bfa, rport);
if (!rport->bfa_rport) {
bfa_trc(fcs, rpid);
kfree(rport_drv);
return NULL;
}
/**
* allocate FC-4s
*/
bfa_assert(bfa_fcs_port_is_initiator(port) ^
bfa_fcs_port_is_target(port));
if (bfa_fcs_port_is_initiator(port)) {
rport->itnim = bfa_fcs_itnim_create(rport);
if (!rport->itnim) {
bfa_trc(fcs, rpid);
bfa_rport_delete(rport->bfa_rport);
kfree(rport_drv);
return NULL;
}
}
if (bfa_fcs_port_is_target(port)) {
rport->tin = bfa_fcs_tin_create(rport);
if (!rport->tin) {
bfa_trc(fcs, rpid);
bfa_rport_delete(rport->bfa_rport);
kfree(rport_drv);
return NULL;
}
}
bfa_fcs_port_add_rport(port, rport);
bfa_sm_set_state(rport, bfa_fcs_rport_sm_uninit);
/*
* Initialize the Rport Features(RPF) Sub Module
*/
if (!BFA_FCS_PID_IS_WKA(rport->pid))
bfa_fcs_rpf_init(rport);
return rport;
}
static void
bfa_fcs_rport_free(struct bfa_fcs_rport_s *rport)
{
struct bfa_fcs_port_s *port = rport->port;
/**
* - delete FC-4s
* - delete BFA rport
* - remove from queue of rports
*/
if (bfa_fcs_port_is_initiator(port))
bfa_fcs_itnim_delete(rport->itnim);
if (bfa_fcs_port_is_target(port))
bfa_fcs_tin_delete(rport->tin);
bfa_rport_delete(rport->bfa_rport);
bfa_fcs_port_del_rport(port, rport);
kfree(rport->rp_drv);
}
static void
bfa_fcs_rport_aen_post(struct bfa_fcs_rport_s *rport,
enum bfa_rport_aen_event event,
struct bfa_rport_aen_data_s *data)
{
union bfa_aen_data_u aen_data;
struct bfa_log_mod_s *logmod = rport->fcs->logm;
wwn_t lpwwn = bfa_fcs_port_get_pwwn(rport->port);
wwn_t rpwwn = rport->pwwn;
char lpwwn_ptr[BFA_STRING_32];
char rpwwn_ptr[BFA_STRING_32];
char *prio_str[] = { "unknown", "high", "medium", "low" };
wwn2str(lpwwn_ptr, lpwwn);
wwn2str(rpwwn_ptr, rpwwn);
switch (event) {
case BFA_RPORT_AEN_ONLINE:
case BFA_RPORT_AEN_OFFLINE:
case BFA_RPORT_AEN_DISCONNECT:
bfa_log(logmod, BFA_LOG_CREATE_ID(BFA_AEN_CAT_RPORT, event),
rpwwn_ptr, lpwwn_ptr);
break;
case BFA_RPORT_AEN_QOS_PRIO:
aen_data.rport.priv.qos = data->priv.qos;
bfa_log(logmod, BFA_AEN_RPORT_QOS_PRIO,
prio_str[aen_data.rport.priv.qos.qos_priority],
rpwwn_ptr, lpwwn_ptr);
break;
case BFA_RPORT_AEN_QOS_FLOWID:
aen_data.rport.priv.qos = data->priv.qos;
bfa_log(logmod, BFA_AEN_RPORT_QOS_FLOWID,
aen_data.rport.priv.qos.qos_flow_id, rpwwn_ptr,
lpwwn_ptr);
break;
default:
break;
}
aen_data.rport.vf_id = rport->port->fabric->vf_id;
aen_data.rport.ppwwn =
bfa_fcs_port_get_pwwn(bfa_fcs_get_base_port(rport->fcs));
aen_data.rport.lpwwn = lpwwn;
aen_data.rport.rpwwn = rpwwn;
}
static void
bfa_fcs_rport_online_action(struct bfa_fcs_rport_s *rport)
{
struct bfa_fcs_port_s *port = rport->port;
rport->stats.onlines++;
if (bfa_fcs_port_is_initiator(port)) {
bfa_fcs_itnim_rport_online(rport->itnim);
if (!BFA_FCS_PID_IS_WKA(rport->pid))
bfa_fcs_rpf_rport_online(rport);
};
if (bfa_fcs_port_is_target(port))
bfa_fcs_tin_rport_online(rport->tin);
/*
* Don't post events for well known addresses
*/
if (!BFA_FCS_PID_IS_WKA(rport->pid))
bfa_fcs_rport_aen_post(rport, BFA_RPORT_AEN_ONLINE, NULL);
}
static void
bfa_fcs_rport_offline_action(struct bfa_fcs_rport_s *rport)
{
struct bfa_fcs_port_s *port = rport->port;
rport->stats.offlines++;
/*
* Don't post events for well known addresses
*/
if (!BFA_FCS_PID_IS_WKA(rport->pid)) {
if (bfa_fcs_port_is_online(rport->port) == BFA_TRUE) {
bfa_fcs_rport_aen_post(rport, BFA_RPORT_AEN_DISCONNECT,
NULL);
} else {
bfa_fcs_rport_aen_post(rport, BFA_RPORT_AEN_OFFLINE,
NULL);
}
}
if (bfa_fcs_port_is_initiator(port)) {
bfa_fcs_itnim_rport_offline(rport->itnim);
if (!BFA_FCS_PID_IS_WKA(rport->pid))
bfa_fcs_rpf_rport_offline(rport);
}
if (bfa_fcs_port_is_target(port))
bfa_fcs_tin_rport_offline(rport->tin);
}
/**
* Update rport parameters from PLOGI or PLOGI accept.
*/
static void
bfa_fcs_rport_update(struct bfa_fcs_rport_s *rport, struct fc_logi_s *plogi)
{
struct bfa_fcs_port_s *port = rport->port;
/**
* - port name
* - node name
*/
rport->pwwn = plogi->port_name;
rport->nwwn = plogi->node_name;
/**
* - class of service
*/
rport->fc_cos = 0;
if (plogi->class3.class_valid)
rport->fc_cos = FC_CLASS_3;
if (plogi->class2.class_valid)
rport->fc_cos |= FC_CLASS_2;
/**
* - CISC
* - MAX receive frame size
*/
rport->cisc = plogi->csp.cisc;
rport->maxfrsize = bfa_os_ntohs(plogi->class3.rxsz);
bfa_trc(port->fcs, bfa_os_ntohs(plogi->csp.bbcred));
bfa_trc(port->fcs, port->fabric->bb_credit);
/**
* Direct Attach P2P mode :
* This is to handle a bug (233476) in IBM targets in Direct Attach
* Mode. Basically, in FLOGI Accept the target would have erroneously
* set the BB Credit to the value used in the FLOGI sent by the HBA.
* It uses the correct value (its own BB credit) in PLOGI.
*/
if ((!bfa_fcs_fabric_is_switched(port->fabric))
&& (bfa_os_ntohs(plogi->csp.bbcred) < port->fabric->bb_credit)) {
bfa_trc(port->fcs, bfa_os_ntohs(plogi->csp.bbcred));
bfa_trc(port->fcs, port->fabric->bb_credit);
port->fabric->bb_credit = bfa_os_ntohs(plogi->csp.bbcred);
bfa_fcport_set_tx_bbcredit(port->fcs->bfa,
port->fabric->bb_credit);
}
}
/**
* Called to handle LOGO received from an existing remote port.
*/
static void
bfa_fcs_rport_process_logo(struct bfa_fcs_rport_s *rport, struct fchs_s *fchs)
{
rport->reply_oxid = fchs->ox_id;
bfa_trc(rport->fcs, rport->reply_oxid);
rport->prlo = BFA_FALSE;
rport->stats.logo_rcvd++;
bfa_sm_send_event(rport, RPSM_EVENT_LOGO_RCVD);
}
/**
* fcs_rport_public FCS rport public interfaces
*/
/**
* Called by bport/vport to create a remote port instance for a discovered
* remote device.
*
* @param[in] port - base port or vport
* @param[in] rpid - remote port ID
*
* @return None
*/
struct bfa_fcs_rport_s *
bfa_fcs_rport_create(struct bfa_fcs_port_s *port, u32 rpid)
{
struct bfa_fcs_rport_s *rport;
bfa_trc(port->fcs, rpid);
rport = bfa_fcs_rport_alloc(port, WWN_NULL, rpid);
if (!rport)
return NULL;
bfa_sm_send_event(rport, RPSM_EVENT_PLOGI_SEND);
return rport;
}
/**
* Called to create a rport for which only the wwn is known.
*
* @param[in] port - base port
* @param[in] rpwwn - remote port wwn
*
* @return None
*/
struct bfa_fcs_rport_s *
bfa_fcs_rport_create_by_wwn(struct bfa_fcs_port_s *port, wwn_t rpwwn)
{
struct bfa_fcs_rport_s *rport;
bfa_trc(port->fcs, rpwwn);
rport = bfa_fcs_rport_alloc(port, rpwwn, 0);
if (!rport)
return NULL;
bfa_sm_send_event(rport, RPSM_EVENT_ADDRESS_DISC);
return rport;
}
/**
* Called by bport in private loop topology to indicate that a
* rport has been discovered and plogi has been completed.
*
* @param[in] port - base port or vport
* @param[in] rpid - remote port ID
*/
void
bfa_fcs_rport_start(struct bfa_fcs_port_s *port, struct fchs_s *fchs,
struct fc_logi_s *plogi)
{
struct bfa_fcs_rport_s *rport;
rport = bfa_fcs_rport_alloc(port, WWN_NULL, fchs->s_id);
if (!rport)
return;
bfa_fcs_rport_update(rport, plogi);
bfa_sm_send_event(rport, RPSM_EVENT_PLOGI_COMP);
}
/**
* Called by bport/vport to handle PLOGI received from a new remote port.
* If an existing rport does a plogi, it will be handled separately.
*/
void
bfa_fcs_rport_plogi_create(struct bfa_fcs_port_s *port, struct fchs_s *fchs,
struct fc_logi_s *plogi)
{
struct bfa_fcs_rport_s *rport;
rport = bfa_fcs_rport_alloc(port, plogi->port_name, fchs->s_id);
if (!rport)
return;
bfa_fcs_rport_update(rport, plogi);
rport->reply_oxid = fchs->ox_id;
bfa_trc(rport->fcs, rport->reply_oxid);
rport->stats.plogi_rcvd++;
bfa_sm_send_event(rport, RPSM_EVENT_PLOGI_RCVD);
}
static int
wwn_compare(wwn_t wwn1, wwn_t wwn2)
{
u8 *b1 = (u8 *) &wwn1;
u8 *b2 = (u8 *) &wwn2;
int i;
for (i = 0; i < sizeof(wwn_t); i++) {
if (b1[i] < b2[i])
return -1;
if (b1[i] > b2[i])
return 1;
}
return 0;
}
/**
* Called by bport/vport to handle PLOGI received from an existing
* remote port.
*/
void
bfa_fcs_rport_plogi(struct bfa_fcs_rport_s *rport, struct fchs_s *rx_fchs,
struct fc_logi_s *plogi)
{
/**
* @todo Handle P2P and initiator-initiator.
*/
bfa_fcs_rport_update(rport, plogi);
rport->reply_oxid = rx_fchs->ox_id;
bfa_trc(rport->fcs, rport->reply_oxid);
/**
* In Switched fabric topology,
* PLOGI to each other. If our pwwn is smaller, ignore it,
* if it is not a well known address.
* If the link topology is N2N,
* this Plogi should be accepted.
*/
if ((wwn_compare(rport->port->port_cfg.pwwn, rport->pwwn) == -1)
&& (bfa_fcs_fabric_is_switched(rport->port->fabric))
&& (!BFA_FCS_PID_IS_WKA(rport->pid))) {
bfa_trc(rport->fcs, rport->pid);
return;
}
rport->stats.plogi_rcvd++;
bfa_sm_send_event(rport, RPSM_EVENT_PLOGI_RCVD);
}
/**
* Called by bport/vport to delete a remote port instance.
*
* Rport delete is called under the following conditions:
* - vport is deleted
* - vf is deleted
* - explicit request from OS to delete rport (vmware)
*/
void
bfa_fcs_rport_delete(struct bfa_fcs_rport_s *rport)
{
bfa_sm_send_event(rport, RPSM_EVENT_DELETE);
}
/**
* Called by bport/vport to when a target goes offline.
*
*/
void
bfa_fcs_rport_offline(struct bfa_fcs_rport_s *rport)
{
bfa_sm_send_event(rport, RPSM_EVENT_LOGO_IMP);
}
/**
* Called by bport in n2n when a target (attached port) becomes online.
*
*/
void
bfa_fcs_rport_online(struct bfa_fcs_rport_s *rport)
{
bfa_sm_send_event(rport, RPSM_EVENT_PLOGI_SEND);
}
/**
* Called by bport/vport to notify SCN for the remote port
*/
void
bfa_fcs_rport_scn(struct bfa_fcs_rport_s *rport)
{
rport->stats.rscns++;
bfa_sm_send_event(rport, RPSM_EVENT_SCN);
}
/**
* Called by fcpim to notify that the ITN cleanup is done.
*/
void
bfa_fcs_rport_itnim_ack(struct bfa_fcs_rport_s *rport)
{
bfa_sm_send_event(rport, RPSM_EVENT_FC4_OFFLINE);
}
/**
* Called by fcptm to notify that the ITN cleanup is done.
*/
void
bfa_fcs_rport_tin_ack(struct bfa_fcs_rport_s *rport)
{
bfa_sm_send_event(rport, RPSM_EVENT_FC4_OFFLINE);
}
/**
* This routine BFA callback for bfa_rport_online() call.
*
* param[in] cb_arg - rport struct.
*
* return
* void
*
* Special Considerations:
*
* note
*/
void
bfa_cb_rport_online(void *cbarg)
{
struct bfa_fcs_rport_s *rport = (struct bfa_fcs_rport_s *)cbarg;
bfa_trc(rport->fcs, rport->pwwn);
bfa_sm_send_event(rport, RPSM_EVENT_HCB_ONLINE);
}
/**
* This routine BFA callback for bfa_rport_offline() call.
*
* param[in] rport -
*
* return
* void
*
* Special Considerations:
*
* note
*/
void
bfa_cb_rport_offline(void *cbarg)
{
struct bfa_fcs_rport_s *rport = (struct bfa_fcs_rport_s *)cbarg;
bfa_trc(rport->fcs, rport->pwwn);
bfa_sm_send_event(rport, RPSM_EVENT_HCB_OFFLINE);
}
/**
* This routine is a static BFA callback when there is a QoS flow_id
* change notification
*
* @param[in] rport -
*
* @return void
*
* Special Considerations:
*
* @note
*/
void
bfa_cb_rport_qos_scn_flowid(void *cbarg,
struct bfa_rport_qos_attr_s old_qos_attr,
struct bfa_rport_qos_attr_s new_qos_attr)
{
struct bfa_fcs_rport_s *rport = (struct bfa_fcs_rport_s *)cbarg;
struct bfa_rport_aen_data_s aen_data;
bfa_trc(rport->fcs, rport->pwwn);
aen_data.priv.qos = new_qos_attr;
bfa_fcs_rport_aen_post(rport, BFA_RPORT_AEN_QOS_FLOWID, &aen_data);
}
/**
* This routine is a static BFA callback when there is a QoS priority
* change notification
*
* @param[in] rport -
*
* @return void
*
* Special Considerations:
*
* @note
*/
void
bfa_cb_rport_qos_scn_prio(void *cbarg, struct bfa_rport_qos_attr_s old_qos_attr,
struct bfa_rport_qos_attr_s new_qos_attr)
{
struct bfa_fcs_rport_s *rport = (struct bfa_fcs_rport_s *)cbarg;
struct bfa_rport_aen_data_s aen_data;
bfa_trc(rport->fcs, rport->pwwn);
aen_data.priv.qos = new_qos_attr;
bfa_fcs_rport_aen_post(rport, BFA_RPORT_AEN_QOS_PRIO, &aen_data);
}
/**
* Called to process any unsolicted frames from this remote port
*/
void
bfa_fcs_rport_logo_imp(struct bfa_fcs_rport_s *rport)
{
bfa_sm_send_event(rport, RPSM_EVENT_LOGO_IMP);
}
/**
* Called to process any unsolicted frames from this remote port
*/
void
bfa_fcs_rport_uf_recv(struct bfa_fcs_rport_s *rport, struct fchs_s *fchs,
u16 len)
{
struct bfa_fcs_port_s *port = rport->port;
struct fc_els_cmd_s *els_cmd;
bfa_trc(rport->fcs, fchs->s_id);
bfa_trc(rport->fcs, fchs->d_id);
bfa_trc(rport->fcs, fchs->type);
if (fchs->type != FC_TYPE_ELS)
return;
els_cmd = (struct fc_els_cmd_s *) (fchs + 1);
bfa_trc(rport->fcs, els_cmd->els_code);
switch (els_cmd->els_code) {
case FC_ELS_LOGO:
bfa_fcs_rport_process_logo(rport, fchs);
break;
case FC_ELS_ADISC:
bfa_fcs_rport_process_adisc(rport, fchs, len);
break;
case FC_ELS_PRLO:
if (bfa_fcs_port_is_initiator(port))
bfa_fcs_fcpim_uf_recv(rport->itnim, fchs, len);
if (bfa_fcs_port_is_target(port))
bfa_fcs_fcptm_uf_recv(rport->tin, fchs, len);
break;
case FC_ELS_PRLI:
bfa_fcs_rport_process_prli(rport, fchs, len);
break;
case FC_ELS_RPSC:
bfa_fcs_rport_process_rpsc(rport, fchs, len);
break;
default:
bfa_fcs_rport_send_ls_rjt(rport, fchs,
FC_LS_RJT_RSN_CMD_NOT_SUPP,
FC_LS_RJT_EXP_NO_ADDL_INFO);
break;
}
}
/* Send best case acc to prlo */
static void
bfa_fcs_rport_send_prlo_acc(struct bfa_fcs_rport_s *rport)
{
struct bfa_fcs_port_s *port = rport->port;
struct fchs_s fchs;
struct bfa_fcxp_s *fcxp;
int len;
bfa_trc(rport->fcs, rport->pid);
fcxp = bfa_fcs_fcxp_alloc(port->fcs);
if (!fcxp)
return;
len = fc_prlo_acc_build(&fchs, bfa_fcxp_get_reqbuf(fcxp),
rport->pid, bfa_fcs_port_get_fcid(port),
rport->reply_oxid, 0);
bfa_fcxp_send(fcxp, rport->bfa_rport, port->fabric->vf_id,
port->lp_tag, BFA_FALSE, FC_CLASS_3, len, &fchs,
NULL, NULL, FC_MAX_PDUSZ, 0);
}
/*
* Send a LS reject
*/
static void
bfa_fcs_rport_send_ls_rjt(struct bfa_fcs_rport_s *rport, struct fchs_s *rx_fchs,
u8 reason_code, u8 reason_code_expl)
{
struct bfa_fcs_port_s *port = rport->port;
struct fchs_s fchs;
struct bfa_fcxp_s *fcxp;
int len;
bfa_trc(rport->fcs, rx_fchs->s_id);
fcxp = bfa_fcs_fcxp_alloc(rport->fcs);
if (!fcxp)
return;
len = fc_ls_rjt_build(&fchs, bfa_fcxp_get_reqbuf(fcxp), rx_fchs->s_id,
bfa_fcs_port_get_fcid(port), rx_fchs->ox_id,
reason_code, reason_code_expl);
bfa_fcxp_send(fcxp, NULL, port->fabric->vf_id, port->lp_tag, BFA_FALSE,
FC_CLASS_3, len, &fchs, NULL, NULL, FC_MAX_PDUSZ, 0);
}
/**
* Return state of rport.
*/
int
bfa_fcs_rport_get_state(struct bfa_fcs_rport_s *rport)
{
return bfa_sm_to_state(rport_sm_table, rport->sm);
}
/**
* Called by the Driver to set rport delete/ageout timeout
*
* param[in] rport timeout value in seconds.
*
* return None
*/
void
bfa_fcs_rport_set_del_timeout(u8 rport_tmo)
{
/*
* convert to Millisecs
*/
if (rport_tmo > 0)
bfa_fcs_rport_del_timeout = rport_tmo * 1000;
}
void
bfa_fcs_rport_prlo(struct bfa_fcs_rport_s *rport, uint16_t ox_id)
{
bfa_trc(rport->fcs, rport->pid);
rport->prlo = BFA_TRUE;
rport->reply_oxid = ox_id;
bfa_sm_send_event(rport, RPSM_EVENT_PRLO_RCVD);
}
