2 * Copyright (c) 2005-2010 Brocade Communications Systems, Inc.
6 * Linux driver for Brocade Fibre Channel Host Bus Adapter.
8 * This program is free software; you can redistribute it and/or modify it
9 * under the terms of the GNU General Public License (GPL) Version 2 as
10 * published by the Free Software Foundation
12 * This program is distributed in the hope that it will be useful, but
13 * WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15 * General Public License for more details.
19 * fcpim.c - FCP initiator mode i-t nexus state machine
23 #include "bfa_fcbuild.h"
27 BFA_TRC_FILE(FCS, FCPIM);
30 * forward declarations
32 static void bfa_fcs_itnim_timeout(void *arg);
33 static void bfa_fcs_itnim_free(struct bfa_fcs_itnim_s *itnim);
34 static void bfa_fcs_itnim_send_prli(void *itnim_cbarg,
35 struct bfa_fcxp_s *fcxp_alloced);
36 static void bfa_fcs_itnim_prli_response(void *fcsarg,
37 struct bfa_fcxp_s *fcxp, void *cbarg,
38 bfa_status_t req_status, u32 rsp_len,
39 u32 resid_len, struct fchs_s *rsp_fchs);
42 * fcs_itnim_sm FCS itnim state machine events
45 enum bfa_fcs_itnim_event {
46 BFA_FCS_ITNIM_SM_ONLINE = 1, /* rport online event */
47 BFA_FCS_ITNIM_SM_OFFLINE = 2, /* rport offline */
48 BFA_FCS_ITNIM_SM_FRMSENT = 3, /* prli frame is sent */
49 BFA_FCS_ITNIM_SM_RSP_OK = 4, /* good response */
50 BFA_FCS_ITNIM_SM_RSP_ERROR = 5, /* error response */
51 BFA_FCS_ITNIM_SM_TIMEOUT = 6, /* delay timeout */
52 BFA_FCS_ITNIM_SM_HCB_OFFLINE = 7, /* BFA online callback */
53 BFA_FCS_ITNIM_SM_HCB_ONLINE = 8, /* BFA offline callback */
54 BFA_FCS_ITNIM_SM_INITIATOR = 9, /* rport is initiator */
55 BFA_FCS_ITNIM_SM_DELETE = 10, /* delete event from rport */
56 BFA_FCS_ITNIM_SM_PRLO = 11, /* delete event from rport */
59 static void bfa_fcs_itnim_sm_offline(struct bfa_fcs_itnim_s *itnim,
60 enum bfa_fcs_itnim_event event);
61 static void bfa_fcs_itnim_sm_prli_send(struct bfa_fcs_itnim_s *itnim,
62 enum bfa_fcs_itnim_event event);
63 static void bfa_fcs_itnim_sm_prli(struct bfa_fcs_itnim_s *itnim,
64 enum bfa_fcs_itnim_event event);
65 static void bfa_fcs_itnim_sm_prli_retry(struct bfa_fcs_itnim_s *itnim,
66 enum bfa_fcs_itnim_event event);
67 static void bfa_fcs_itnim_sm_hcb_online(struct bfa_fcs_itnim_s *itnim,
68 enum bfa_fcs_itnim_event event);
69 static void bfa_fcs_itnim_sm_online(struct bfa_fcs_itnim_s *itnim,
70 enum bfa_fcs_itnim_event event);
71 static void bfa_fcs_itnim_sm_hcb_offline(struct bfa_fcs_itnim_s *itnim,
72 enum bfa_fcs_itnim_event event);
73 static void bfa_fcs_itnim_sm_initiator(struct bfa_fcs_itnim_s *itnim,
74 enum bfa_fcs_itnim_event event);
76 static struct bfa_sm_table_s itnim_sm_table[] = {
77 {BFA_SM(bfa_fcs_itnim_sm_offline), BFA_ITNIM_OFFLINE},
78 {BFA_SM(bfa_fcs_itnim_sm_prli_send), BFA_ITNIM_PRLI_SEND},
79 {BFA_SM(bfa_fcs_itnim_sm_prli), BFA_ITNIM_PRLI_SENT},
80 {BFA_SM(bfa_fcs_itnim_sm_prli_retry), BFA_ITNIM_PRLI_RETRY},
81 {BFA_SM(bfa_fcs_itnim_sm_hcb_online), BFA_ITNIM_HCB_ONLINE},
82 {BFA_SM(bfa_fcs_itnim_sm_online), BFA_ITNIM_ONLINE},
83 {BFA_SM(bfa_fcs_itnim_sm_hcb_offline), BFA_ITNIM_HCB_OFFLINE},
84 {BFA_SM(bfa_fcs_itnim_sm_initiator), BFA_ITNIM_INITIATIOR},
88 * fcs_itnim_sm FCS itnim state machine
92 bfa_fcs_itnim_sm_offline(struct bfa_fcs_itnim_s *itnim,
93 enum bfa_fcs_itnim_event event)
95 bfa_trc(itnim->fcs, itnim->rport->pwwn);
96 bfa_trc(itnim->fcs, event);
99 case BFA_FCS_ITNIM_SM_ONLINE:
100 bfa_sm_set_state(itnim, bfa_fcs_itnim_sm_prli_send);
101 itnim->prli_retries = 0;
102 bfa_fcs_itnim_send_prli(itnim, NULL);
105 case BFA_FCS_ITNIM_SM_OFFLINE:
106 bfa_fcs_rport_itnim_ack(itnim->rport);
109 case BFA_FCS_ITNIM_SM_INITIATOR:
110 bfa_sm_set_state(itnim, bfa_fcs_itnim_sm_initiator);
113 case BFA_FCS_ITNIM_SM_DELETE:
114 bfa_fcs_itnim_free(itnim);
118 bfa_sm_fault(itnim->fcs, event);
124 bfa_fcs_itnim_sm_prli_send(struct bfa_fcs_itnim_s *itnim,
125 enum bfa_fcs_itnim_event event)
127 bfa_trc(itnim->fcs, itnim->rport->pwwn);
128 bfa_trc(itnim->fcs, event);
131 case BFA_FCS_ITNIM_SM_FRMSENT:
132 bfa_sm_set_state(itnim, bfa_fcs_itnim_sm_prli);
135 case BFA_FCS_ITNIM_SM_INITIATOR:
136 bfa_sm_set_state(itnim, bfa_fcs_itnim_sm_initiator);
137 bfa_fcxp_walloc_cancel(itnim->fcs->bfa, &itnim->fcxp_wqe);
140 case BFA_FCS_ITNIM_SM_OFFLINE:
141 bfa_sm_set_state(itnim, bfa_fcs_itnim_sm_offline);
142 bfa_fcxp_walloc_cancel(itnim->fcs->bfa, &itnim->fcxp_wqe);
143 bfa_fcs_rport_itnim_ack(itnim->rport);
146 case BFA_FCS_ITNIM_SM_DELETE:
147 bfa_sm_set_state(itnim, bfa_fcs_itnim_sm_offline);
148 bfa_fcxp_walloc_cancel(itnim->fcs->bfa, &itnim->fcxp_wqe);
149 bfa_fcs_itnim_free(itnim);
153 bfa_sm_fault(itnim->fcs, event);
158 bfa_fcs_itnim_sm_prli(struct bfa_fcs_itnim_s *itnim,
159 enum bfa_fcs_itnim_event event)
161 bfa_trc(itnim->fcs, itnim->rport->pwwn);
162 bfa_trc(itnim->fcs, event);
165 case BFA_FCS_ITNIM_SM_RSP_OK:
166 if (itnim->rport->scsi_function == BFA_RPORT_INITIATOR) {
167 bfa_sm_set_state(itnim, bfa_fcs_itnim_sm_initiator);
169 bfa_sm_set_state(itnim, bfa_fcs_itnim_sm_hcb_online);
170 bfa_itnim_online(itnim->bfa_itnim, itnim->seq_rec);
174 case BFA_FCS_ITNIM_SM_RSP_ERROR:
175 bfa_sm_set_state(itnim, bfa_fcs_itnim_sm_prli_retry);
176 bfa_timer_start(itnim->fcs->bfa, &itnim->timer,
177 bfa_fcs_itnim_timeout, itnim,
178 BFA_FCS_RETRY_TIMEOUT);
181 case BFA_FCS_ITNIM_SM_OFFLINE:
182 bfa_sm_set_state(itnim, bfa_fcs_itnim_sm_offline);
183 bfa_fcxp_discard(itnim->fcxp);
184 bfa_fcs_rport_itnim_ack(itnim->rport);
187 case BFA_FCS_ITNIM_SM_INITIATOR:
188 bfa_sm_set_state(itnim, bfa_fcs_itnim_sm_initiator);
189 bfa_fcxp_discard(itnim->fcxp);
192 case BFA_FCS_ITNIM_SM_DELETE:
193 bfa_sm_set_state(itnim, bfa_fcs_itnim_sm_offline);
194 bfa_fcxp_discard(itnim->fcxp);
195 bfa_fcs_itnim_free(itnim);
199 bfa_sm_fault(itnim->fcs, event);
204 bfa_fcs_itnim_sm_prli_retry(struct bfa_fcs_itnim_s *itnim,
205 enum bfa_fcs_itnim_event event)
207 bfa_trc(itnim->fcs, itnim->rport->pwwn);
208 bfa_trc(itnim->fcs, event);
211 case BFA_FCS_ITNIM_SM_TIMEOUT:
212 if (itnim->prli_retries < BFA_FCS_RPORT_MAX_RETRIES) {
213 itnim->prli_retries++;
214 bfa_trc(itnim->fcs, itnim->prli_retries);
215 bfa_sm_set_state(itnim, bfa_fcs_itnim_sm_prli_send);
216 bfa_fcs_itnim_send_prli(itnim, NULL);
218 /* invoke target offline */
219 bfa_sm_set_state(itnim, bfa_fcs_itnim_sm_offline);
220 bfa_fcs_rport_logo_imp(itnim->rport);
225 case BFA_FCS_ITNIM_SM_OFFLINE:
226 bfa_sm_set_state(itnim, bfa_fcs_itnim_sm_offline);
227 bfa_timer_stop(&itnim->timer);
228 bfa_fcs_rport_itnim_ack(itnim->rport);
231 case BFA_FCS_ITNIM_SM_INITIATOR:
232 bfa_sm_set_state(itnim, bfa_fcs_itnim_sm_initiator);
233 bfa_timer_stop(&itnim->timer);
236 case BFA_FCS_ITNIM_SM_DELETE:
237 bfa_sm_set_state(itnim, bfa_fcs_itnim_sm_offline);
238 bfa_timer_stop(&itnim->timer);
239 bfa_fcs_itnim_free(itnim);
243 bfa_sm_fault(itnim->fcs, event);
248 bfa_fcs_itnim_sm_hcb_online(struct bfa_fcs_itnim_s *itnim,
249 enum bfa_fcs_itnim_event event)
251 struct bfad_s *bfad = (struct bfad_s *)itnim->fcs->bfad;
252 char lpwwn_buf[BFA_STRING_32];
253 char rpwwn_buf[BFA_STRING_32];
255 bfa_trc(itnim->fcs, itnim->rport->pwwn);
256 bfa_trc(itnim->fcs, event);
259 case BFA_FCS_ITNIM_SM_HCB_ONLINE:
260 bfa_sm_set_state(itnim, bfa_fcs_itnim_sm_online);
261 bfa_fcb_itnim_online(itnim->itnim_drv);
262 wwn2str(lpwwn_buf, bfa_fcs_lport_get_pwwn(itnim->rport->port));
263 wwn2str(rpwwn_buf, itnim->rport->pwwn);
264 BFA_LOG(KERN_INFO, bfad, bfa_log_level,
265 "Target (WWN = %s) is online for initiator (WWN = %s)\n",
266 rpwwn_buf, lpwwn_buf);
269 case BFA_FCS_ITNIM_SM_OFFLINE:
270 bfa_sm_set_state(itnim, bfa_fcs_itnim_sm_offline);
271 bfa_itnim_offline(itnim->bfa_itnim);
272 bfa_fcs_rport_itnim_ack(itnim->rport);
275 case BFA_FCS_ITNIM_SM_DELETE:
276 bfa_sm_set_state(itnim, bfa_fcs_itnim_sm_offline);
277 bfa_fcs_itnim_free(itnim);
281 bfa_sm_fault(itnim->fcs, event);
286 bfa_fcs_itnim_sm_online(struct bfa_fcs_itnim_s *itnim,
287 enum bfa_fcs_itnim_event event)
289 struct bfad_s *bfad = (struct bfad_s *)itnim->fcs->bfad;
290 char lpwwn_buf[BFA_STRING_32];
291 char rpwwn_buf[BFA_STRING_32];
293 bfa_trc(itnim->fcs, itnim->rport->pwwn);
294 bfa_trc(itnim->fcs, event);
297 case BFA_FCS_ITNIM_SM_OFFLINE:
298 bfa_sm_set_state(itnim, bfa_fcs_itnim_sm_hcb_offline);
299 bfa_fcb_itnim_offline(itnim->itnim_drv);
300 bfa_itnim_offline(itnim->bfa_itnim);
301 wwn2str(lpwwn_buf, bfa_fcs_lport_get_pwwn(itnim->rport->port));
302 wwn2str(rpwwn_buf, itnim->rport->pwwn);
303 if (bfa_fcs_lport_is_online(itnim->rport->port) == BFA_TRUE)
304 BFA_LOG(KERN_ERR, bfad, bfa_log_level,
305 "Target (WWN = %s) connectivity lost for "
306 "initiator (WWN = %s)\n", rpwwn_buf, lpwwn_buf);
308 BFA_LOG(KERN_INFO, bfad, bfa_log_level,
309 "Target (WWN = %s) offlined by initiator (WWN = %s)\n",
310 rpwwn_buf, lpwwn_buf);
313 case BFA_FCS_ITNIM_SM_DELETE:
314 bfa_sm_set_state(itnim, bfa_fcs_itnim_sm_offline);
315 bfa_fcs_itnim_free(itnim);
319 bfa_sm_fault(itnim->fcs, event);
324 bfa_fcs_itnim_sm_hcb_offline(struct bfa_fcs_itnim_s *itnim,
325 enum bfa_fcs_itnim_event event)
327 bfa_trc(itnim->fcs, itnim->rport->pwwn);
328 bfa_trc(itnim->fcs, event);
331 case BFA_FCS_ITNIM_SM_HCB_OFFLINE:
332 bfa_sm_set_state(itnim, bfa_fcs_itnim_sm_offline);
333 bfa_fcs_rport_itnim_ack(itnim->rport);
336 case BFA_FCS_ITNIM_SM_DELETE:
337 bfa_sm_set_state(itnim, bfa_fcs_itnim_sm_offline);
338 bfa_fcs_itnim_free(itnim);
342 bfa_sm_fault(itnim->fcs, event);
347 * This state is set when a discovered rport is also in intiator mode.
348 * This ITN is marked as no_op and is not active and will not be truned into
352 bfa_fcs_itnim_sm_initiator(struct bfa_fcs_itnim_s *itnim,
353 enum bfa_fcs_itnim_event event)
355 bfa_trc(itnim->fcs, itnim->rport->pwwn);
356 bfa_trc(itnim->fcs, event);
359 case BFA_FCS_ITNIM_SM_OFFLINE:
360 bfa_sm_set_state(itnim, bfa_fcs_itnim_sm_offline);
361 bfa_fcs_rport_itnim_ack(itnim->rport);
364 case BFA_FCS_ITNIM_SM_RSP_ERROR:
365 case BFA_FCS_ITNIM_SM_ONLINE:
366 case BFA_FCS_ITNIM_SM_INITIATOR:
369 case BFA_FCS_ITNIM_SM_DELETE:
370 bfa_sm_set_state(itnim, bfa_fcs_itnim_sm_offline);
371 bfa_fcs_itnim_free(itnim);
375 bfa_sm_fault(itnim->fcs, event);
380 bfa_fcs_itnim_send_prli(void *itnim_cbarg, struct bfa_fcxp_s *fcxp_alloced)
382 struct bfa_fcs_itnim_s *itnim = itnim_cbarg;
383 struct bfa_fcs_rport_s *rport = itnim->rport;
384 struct bfa_fcs_lport_s *port = rport->port;
386 struct bfa_fcxp_s *fcxp;
389 bfa_trc(itnim->fcs, itnim->rport->pwwn);
391 fcxp = fcxp_alloced ? fcxp_alloced : bfa_fcs_fcxp_alloc(port->fcs);
393 itnim->stats.fcxp_alloc_wait++;
394 bfa_fcs_fcxp_alloc_wait(port->fcs->bfa, &itnim->fcxp_wqe,
395 bfa_fcs_itnim_send_prli, itnim);
400 len = fc_prli_build(&fchs, bfa_fcxp_get_reqbuf(fcxp),
401 itnim->rport->pid, bfa_fcs_lport_get_fcid(port), 0);
403 bfa_fcxp_send(fcxp, rport->bfa_rport, port->fabric->vf_id, port->lp_tag,
404 BFA_FALSE, FC_CLASS_3, len, &fchs,
405 bfa_fcs_itnim_prli_response, (void *)itnim,
406 FC_MAX_PDUSZ, FC_ELS_TOV);
408 itnim->stats.prli_sent++;
409 bfa_sm_send_event(itnim, BFA_FCS_ITNIM_SM_FRMSENT);
413 bfa_fcs_itnim_prli_response(void *fcsarg, struct bfa_fcxp_s *fcxp, void *cbarg,
414 bfa_status_t req_status, u32 rsp_len,
415 u32 resid_len, struct fchs_s *rsp_fchs)
417 struct bfa_fcs_itnim_s *itnim = (struct bfa_fcs_itnim_s *) cbarg;
418 struct fc_els_cmd_s *els_cmd;
419 struct fc_prli_s *prli_resp;
420 struct fc_ls_rjt_s *ls_rjt;
421 struct fc_prli_params_s *sparams;
423 bfa_trc(itnim->fcs, req_status);
428 if (req_status != BFA_STATUS_OK) {
429 itnim->stats.prli_rsp_err++;
430 bfa_sm_send_event(itnim, BFA_FCS_ITNIM_SM_RSP_ERROR);
434 els_cmd = (struct fc_els_cmd_s *) BFA_FCXP_RSP_PLD(fcxp);
436 if (els_cmd->els_code == FC_ELS_ACC) {
437 prli_resp = (struct fc_prli_s *) els_cmd;
439 if (fc_prli_rsp_parse(prli_resp, rsp_len) != FC_PARSE_OK) {
440 bfa_trc(itnim->fcs, rsp_len);
442 * Check if this r-port is also in Initiator mode.
443 * If so, we need to set this ITN as a no-op.
445 if (prli_resp->parampage.servparams.initiator) {
446 bfa_trc(itnim->fcs, prli_resp->parampage.type);
447 itnim->rport->scsi_function =
449 itnim->stats.prli_rsp_acc++;
450 bfa_sm_send_event(itnim,
451 BFA_FCS_ITNIM_SM_RSP_OK);
455 itnim->stats.prli_rsp_parse_err++;
458 itnim->rport->scsi_function = BFA_RPORT_TARGET;
460 sparams = &prli_resp->parampage.servparams;
461 itnim->seq_rec = sparams->retry;
462 itnim->rec_support = sparams->rec_support;
463 itnim->task_retry_id = sparams->task_retry_id;
464 itnim->conf_comp = sparams->confirm;
466 itnim->stats.prli_rsp_acc++;
467 bfa_sm_send_event(itnim, BFA_FCS_ITNIM_SM_RSP_OK);
469 ls_rjt = (struct fc_ls_rjt_s *) BFA_FCXP_RSP_PLD(fcxp);
471 bfa_trc(itnim->fcs, ls_rjt->reason_code);
472 bfa_trc(itnim->fcs, ls_rjt->reason_code_expl);
474 itnim->stats.prli_rsp_rjt++;
475 bfa_sm_send_event(itnim, BFA_FCS_ITNIM_SM_RSP_ERROR);
480 bfa_fcs_itnim_timeout(void *arg)
482 struct bfa_fcs_itnim_s *itnim = (struct bfa_fcs_itnim_s *) arg;
484 itnim->stats.timeout++;
485 bfa_sm_send_event(itnim, BFA_FCS_ITNIM_SM_TIMEOUT);
489 bfa_fcs_itnim_free(struct bfa_fcs_itnim_s *itnim)
491 bfa_itnim_delete(itnim->bfa_itnim);
492 bfa_fcb_itnim_free(itnim->fcs->bfad, itnim->itnim_drv);
498 * itnim_public FCS ITNIM public interfaces
502 * Called by rport when a new rport is created.
504 * @param[in] rport - remote port.
506 struct bfa_fcs_itnim_s *
507 bfa_fcs_itnim_create(struct bfa_fcs_rport_s *rport)
509 struct bfa_fcs_lport_s *port = rport->port;
510 struct bfa_fcs_itnim_s *itnim;
511 struct bfad_itnim_s *itnim_drv;
512 struct bfa_itnim_s *bfa_itnim;
515 * call bfad to allocate the itnim
517 bfa_fcb_itnim_alloc(port->fcs->bfad, &itnim, &itnim_drv);
519 bfa_trc(port->fcs, rport->pwwn);
526 itnim->rport = rport;
527 itnim->fcs = rport->fcs;
528 itnim->itnim_drv = itnim_drv;
531 * call BFA to create the itnim
534 bfa_itnim_create(port->fcs->bfa, rport->bfa_rport, itnim);
536 if (bfa_itnim == NULL) {
537 bfa_trc(port->fcs, rport->pwwn);
538 bfa_fcb_itnim_free(port->fcs->bfad, itnim_drv);
543 itnim->bfa_itnim = bfa_itnim;
544 itnim->seq_rec = BFA_FALSE;
545 itnim->rec_support = BFA_FALSE;
546 itnim->conf_comp = BFA_FALSE;
547 itnim->task_retry_id = BFA_FALSE;
552 bfa_sm_set_state(itnim, bfa_fcs_itnim_sm_offline);
558 * Called by rport to delete the instance of FCPIM.
560 * @param[in] rport - remote port.
563 bfa_fcs_itnim_delete(struct bfa_fcs_itnim_s *itnim)
565 bfa_trc(itnim->fcs, itnim->rport->pid);
566 bfa_sm_send_event(itnim, BFA_FCS_ITNIM_SM_DELETE);
570 * Notification from rport that PLOGI is complete to initiate FC-4 session.
573 bfa_fcs_itnim_rport_online(struct bfa_fcs_itnim_s *itnim)
575 itnim->stats.onlines++;
577 if (!BFA_FCS_PID_IS_WKA(itnim->rport->pid)) {
578 bfa_sm_send_event(itnim, BFA_FCS_ITNIM_SM_ONLINE);
581 * For well known addresses, we set the itnim to initiator
584 itnim->stats.initiator++;
585 bfa_sm_send_event(itnim, BFA_FCS_ITNIM_SM_INITIATOR);
590 * Called by rport to handle a remote device offline.
593 bfa_fcs_itnim_rport_offline(struct bfa_fcs_itnim_s *itnim)
595 itnim->stats.offlines++;
596 bfa_sm_send_event(itnim, BFA_FCS_ITNIM_SM_OFFLINE);
600 * Called by rport when remote port is known to be an initiator from
604 bfa_fcs_itnim_is_initiator(struct bfa_fcs_itnim_s *itnim)
606 bfa_trc(itnim->fcs, itnim->rport->pid);
607 itnim->stats.initiator++;
608 bfa_sm_send_event(itnim, BFA_FCS_ITNIM_SM_INITIATOR);
612 * Called by rport to check if the itnim is online.
615 bfa_fcs_itnim_get_online_state(struct bfa_fcs_itnim_s *itnim)
617 bfa_trc(itnim->fcs, itnim->rport->pid);
618 switch (bfa_sm_to_state(itnim_sm_table, itnim->sm)) {
619 case BFA_ITNIM_ONLINE:
620 case BFA_ITNIM_INITIATIOR:
621 return BFA_STATUS_OK;
624 return BFA_STATUS_NO_FCPIM_NEXUS;
629 * BFA completion callback for bfa_itnim_online().
632 bfa_cb_itnim_online(void *cbarg)
634 struct bfa_fcs_itnim_s *itnim = (struct bfa_fcs_itnim_s *) cbarg;
636 bfa_trc(itnim->fcs, itnim->rport->pwwn);
637 bfa_sm_send_event(itnim, BFA_FCS_ITNIM_SM_HCB_ONLINE);
641 * BFA completion callback for bfa_itnim_offline().
644 bfa_cb_itnim_offline(void *cb_arg)
646 struct bfa_fcs_itnim_s *itnim = (struct bfa_fcs_itnim_s *) cb_arg;
648 bfa_trc(itnim->fcs, itnim->rport->pwwn);
649 bfa_sm_send_event(itnim, BFA_FCS_ITNIM_SM_HCB_OFFLINE);
653 * Mark the beginning of PATH TOV handling. IO completion callbacks
657 bfa_cb_itnim_tov_begin(void *cb_arg)
659 struct bfa_fcs_itnim_s *itnim = (struct bfa_fcs_itnim_s *) cb_arg;
661 bfa_trc(itnim->fcs, itnim->rport->pwwn);
665 * Mark the end of PATH TOV handling. All pending IOs are already cleaned up.
668 bfa_cb_itnim_tov(void *cb_arg)
670 struct bfa_fcs_itnim_s *itnim = (struct bfa_fcs_itnim_s *) cb_arg;
671 struct bfad_itnim_s *itnim_drv = itnim->itnim_drv;
673 bfa_trc(itnim->fcs, itnim->rport->pwwn);
674 itnim_drv->state = ITNIM_STATE_TIMEOUT;
678 * BFA notification to FCS/driver for second level error recovery.
680 * Atleast one I/O request has timedout and target is unresponsive to
681 * repeated abort requests. Second level error recovery should be initiated
682 * by starting implicit logout and recovery procedures.
685 bfa_cb_itnim_sler(void *cb_arg)
687 struct bfa_fcs_itnim_s *itnim = (struct bfa_fcs_itnim_s *) cb_arg;
690 bfa_trc(itnim->fcs, itnim->rport->pwwn);
691 bfa_fcs_rport_logo_imp(itnim->rport);
694 struct bfa_fcs_itnim_s *
695 bfa_fcs_itnim_lookup(struct bfa_fcs_lport_s *port, wwn_t rpwwn)
697 struct bfa_fcs_rport_s *rport;
698 rport = bfa_fcs_rport_lookup(port, rpwwn);
703 bfa_assert(rport->itnim != NULL);
708 bfa_fcs_itnim_attr_get(struct bfa_fcs_lport_s *port, wwn_t rpwwn,
709 struct bfa_itnim_attr_s *attr)
711 struct bfa_fcs_itnim_s *itnim = NULL;
713 itnim = bfa_fcs_itnim_lookup(port, rpwwn);
716 return BFA_STATUS_NO_FCPIM_NEXUS;
718 attr->state = bfa_sm_to_state(itnim_sm_table, itnim->sm);
719 attr->retry = itnim->seq_rec;
720 attr->rec_support = itnim->rec_support;
721 attr->conf_comp = itnim->conf_comp;
722 attr->task_retry_id = itnim->task_retry_id;
723 return BFA_STATUS_OK;
727 bfa_fcs_itnim_stats_get(struct bfa_fcs_lport_s *port, wwn_t rpwwn,
728 struct bfa_itnim_stats_s *stats)
730 struct bfa_fcs_itnim_s *itnim = NULL;
732 bfa_assert(port != NULL);
734 itnim = bfa_fcs_itnim_lookup(port, rpwwn);
737 return BFA_STATUS_NO_FCPIM_NEXUS;
739 memcpy(stats, &itnim->stats, sizeof(struct bfa_itnim_stats_s));
741 return BFA_STATUS_OK;
745 bfa_fcs_itnim_stats_clear(struct bfa_fcs_lport_s *port, wwn_t rpwwn)
747 struct bfa_fcs_itnim_s *itnim = NULL;
749 bfa_assert(port != NULL);
751 itnim = bfa_fcs_itnim_lookup(port, rpwwn);
754 return BFA_STATUS_NO_FCPIM_NEXUS;
756 memset(&itnim->stats, 0, sizeof(struct bfa_itnim_stats_s));
757 return BFA_STATUS_OK;
761 bfa_fcs_fcpim_uf_recv(struct bfa_fcs_itnim_s *itnim,
762 struct fchs_s *fchs, u16 len)
764 struct fc_els_cmd_s *els_cmd;
766 bfa_trc(itnim->fcs, fchs->type);
768 if (fchs->type != FC_TYPE_ELS)
771 els_cmd = (struct fc_els_cmd_s *) (fchs + 1);
773 bfa_trc(itnim->fcs, els_cmd->els_code);
775 switch (els_cmd->els_code) {
777 bfa_fcs_rport_prlo(itnim->rport, fchs->ox_id);