2 * Copyright (c) 2005-2009 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
24 #include "fcs_fcpim.h"
25 #include "fcs_rport.h"
26 #include "fcs_lport.h"
27 #include "fcs_trcmod.h"
30 #include <fcs/bfa_fcs_fcpim.h>
31 #include <fcb/bfa_fcb_fcpim.h>
32 #include <aen/bfa_aen_itnim.h>
34 BFA_TRC_FILE(FCS, FCPIM);
37 * forward declarations
39 static void bfa_fcs_itnim_timeout(void *arg);
40 static void bfa_fcs_itnim_free(struct bfa_fcs_itnim_s *itnim);
41 static void bfa_fcs_itnim_send_prli(void *itnim_cbarg,
42 struct bfa_fcxp_s *fcxp_alloced);
43 static void bfa_fcs_itnim_prli_response(void *fcsarg,
44 struct bfa_fcxp_s *fcxp,
46 bfa_status_t req_status,
49 struct fchs_s *rsp_fchs);
50 static void bfa_fcs_itnim_aen_post(struct bfa_fcs_itnim_s *itnim,
51 enum bfa_itnim_aen_event event);
54 * fcs_itnim_sm FCS itnim state machine events
57 enum bfa_fcs_itnim_event {
58 BFA_FCS_ITNIM_SM_ONLINE = 1, /* rport online event */
59 BFA_FCS_ITNIM_SM_OFFLINE = 2, /* rport offline */
60 BFA_FCS_ITNIM_SM_FRMSENT = 3, /* prli frame is sent */
61 BFA_FCS_ITNIM_SM_RSP_OK = 4, /* good response */
62 BFA_FCS_ITNIM_SM_RSP_ERROR = 5, /* error response */
63 BFA_FCS_ITNIM_SM_TIMEOUT = 6, /* delay timeout */
64 BFA_FCS_ITNIM_SM_HCB_OFFLINE = 7, /* BFA online callback */
65 BFA_FCS_ITNIM_SM_HCB_ONLINE = 8, /* BFA offline callback */
66 BFA_FCS_ITNIM_SM_INITIATOR = 9, /* rport is initiator */
67 BFA_FCS_ITNIM_SM_DELETE = 10, /* delete event from rport */
68 BFA_FCS_ITNIM_SM_PRLO = 11, /* delete event from rport */
71 static void bfa_fcs_itnim_sm_offline(struct bfa_fcs_itnim_s *itnim,
72 enum bfa_fcs_itnim_event event);
73 static void bfa_fcs_itnim_sm_prli_send(struct bfa_fcs_itnim_s *itnim,
74 enum bfa_fcs_itnim_event event);
75 static void bfa_fcs_itnim_sm_prli(struct bfa_fcs_itnim_s *itnim,
76 enum bfa_fcs_itnim_event event);
77 static void bfa_fcs_itnim_sm_prli_retry(struct bfa_fcs_itnim_s *itnim,
78 enum bfa_fcs_itnim_event event);
79 static void bfa_fcs_itnim_sm_hcb_online(struct bfa_fcs_itnim_s *itnim,
80 enum bfa_fcs_itnim_event event);
81 static void bfa_fcs_itnim_sm_online(struct bfa_fcs_itnim_s *itnim,
82 enum bfa_fcs_itnim_event event);
83 static void bfa_fcs_itnim_sm_hcb_offline(struct bfa_fcs_itnim_s *itnim,
84 enum bfa_fcs_itnim_event event);
85 static void bfa_fcs_itnim_sm_initiator(struct bfa_fcs_itnim_s *itnim,
86 enum bfa_fcs_itnim_event event);
88 static struct bfa_sm_table_s itnim_sm_table[] = {
89 {BFA_SM(bfa_fcs_itnim_sm_offline), BFA_ITNIM_OFFLINE},
90 {BFA_SM(bfa_fcs_itnim_sm_prli_send), BFA_ITNIM_PRLI_SEND},
91 {BFA_SM(bfa_fcs_itnim_sm_prli), BFA_ITNIM_PRLI_SENT},
92 {BFA_SM(bfa_fcs_itnim_sm_prli_retry), BFA_ITNIM_PRLI_RETRY},
93 {BFA_SM(bfa_fcs_itnim_sm_hcb_online), BFA_ITNIM_HCB_ONLINE},
94 {BFA_SM(bfa_fcs_itnim_sm_online), BFA_ITNIM_ONLINE},
95 {BFA_SM(bfa_fcs_itnim_sm_hcb_offline), BFA_ITNIM_HCB_OFFLINE},
96 {BFA_SM(bfa_fcs_itnim_sm_initiator), BFA_ITNIM_INITIATIOR},
100 * fcs_itnim_sm FCS itnim state machine
104 bfa_fcs_itnim_sm_offline(struct bfa_fcs_itnim_s *itnim,
105 enum bfa_fcs_itnim_event event)
107 bfa_trc(itnim->fcs, itnim->rport->pwwn);
108 bfa_trc(itnim->fcs, event);
111 case BFA_FCS_ITNIM_SM_ONLINE:
112 bfa_sm_set_state(itnim, bfa_fcs_itnim_sm_prli_send);
113 bfa_fcs_itnim_send_prli(itnim, NULL);
116 case BFA_FCS_ITNIM_SM_OFFLINE:
117 bfa_fcs_rport_itnim_ack(itnim->rport);
120 case BFA_FCS_ITNIM_SM_INITIATOR:
121 bfa_sm_set_state(itnim, bfa_fcs_itnim_sm_initiator);
124 case BFA_FCS_ITNIM_SM_DELETE:
125 bfa_fcs_itnim_free(itnim);
135 bfa_fcs_itnim_sm_prli_send(struct bfa_fcs_itnim_s *itnim,
136 enum bfa_fcs_itnim_event event)
138 bfa_trc(itnim->fcs, itnim->rport->pwwn);
139 bfa_trc(itnim->fcs, event);
142 case BFA_FCS_ITNIM_SM_FRMSENT:
143 bfa_sm_set_state(itnim, bfa_fcs_itnim_sm_prli);
146 case BFA_FCS_ITNIM_SM_INITIATOR:
147 bfa_sm_set_state(itnim, bfa_fcs_itnim_sm_initiator);
148 bfa_fcxp_walloc_cancel(itnim->fcs->bfa, &itnim->fcxp_wqe);
151 case BFA_FCS_ITNIM_SM_OFFLINE:
152 bfa_sm_set_state(itnim, bfa_fcs_itnim_sm_offline);
153 bfa_fcxp_walloc_cancel(itnim->fcs->bfa, &itnim->fcxp_wqe);
154 bfa_fcs_rport_itnim_ack(itnim->rport);
157 case BFA_FCS_ITNIM_SM_DELETE:
158 bfa_sm_set_state(itnim, bfa_fcs_itnim_sm_offline);
159 bfa_fcxp_walloc_cancel(itnim->fcs->bfa, &itnim->fcxp_wqe);
160 bfa_fcs_itnim_free(itnim);
169 bfa_fcs_itnim_sm_prli(struct bfa_fcs_itnim_s *itnim,
170 enum bfa_fcs_itnim_event event)
172 bfa_trc(itnim->fcs, itnim->rport->pwwn);
173 bfa_trc(itnim->fcs, event);
176 case BFA_FCS_ITNIM_SM_RSP_OK:
177 bfa_sm_set_state(itnim, bfa_fcs_itnim_sm_hcb_online);
178 bfa_itnim_online(itnim->bfa_itnim, itnim->seq_rec);
181 case BFA_FCS_ITNIM_SM_RSP_ERROR:
182 bfa_sm_set_state(itnim, bfa_fcs_itnim_sm_prli_retry);
183 bfa_timer_start(itnim->fcs->bfa, &itnim->timer,
184 bfa_fcs_itnim_timeout, itnim,
185 BFA_FCS_RETRY_TIMEOUT);
188 case BFA_FCS_ITNIM_SM_OFFLINE:
189 bfa_sm_set_state(itnim, bfa_fcs_itnim_sm_offline);
190 bfa_fcxp_discard(itnim->fcxp);
191 bfa_fcs_rport_itnim_ack(itnim->rport);
194 case BFA_FCS_ITNIM_SM_INITIATOR:
195 bfa_sm_set_state(itnim, bfa_fcs_itnim_sm_initiator);
197 * dont discard fcxp. accept will reach same state
201 case BFA_FCS_ITNIM_SM_DELETE:
202 bfa_sm_set_state(itnim, bfa_fcs_itnim_sm_offline);
203 bfa_fcxp_discard(itnim->fcxp);
204 bfa_fcs_itnim_free(itnim);
213 bfa_fcs_itnim_sm_prli_retry(struct bfa_fcs_itnim_s *itnim,
214 enum bfa_fcs_itnim_event event)
216 bfa_trc(itnim->fcs, itnim->rport->pwwn);
217 bfa_trc(itnim->fcs, event);
220 case BFA_FCS_ITNIM_SM_TIMEOUT:
221 bfa_sm_set_state(itnim, bfa_fcs_itnim_sm_prli_send);
222 bfa_fcs_itnim_send_prli(itnim, NULL);
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);
248 bfa_fcs_itnim_sm_hcb_online(struct bfa_fcs_itnim_s *itnim,
249 enum bfa_fcs_itnim_event event)
251 bfa_trc(itnim->fcs, itnim->rport->pwwn);
252 bfa_trc(itnim->fcs, event);
255 case BFA_FCS_ITNIM_SM_HCB_ONLINE:
256 bfa_sm_set_state(itnim, bfa_fcs_itnim_sm_online);
257 bfa_fcb_itnim_online(itnim->itnim_drv);
258 bfa_fcs_itnim_aen_post(itnim, BFA_ITNIM_AEN_ONLINE);
261 case BFA_FCS_ITNIM_SM_OFFLINE:
262 bfa_sm_set_state(itnim, bfa_fcs_itnim_sm_offline);
263 bfa_itnim_offline(itnim->bfa_itnim);
264 bfa_fcs_rport_itnim_ack(itnim->rport);
267 case BFA_FCS_ITNIM_SM_DELETE:
268 bfa_sm_set_state(itnim, bfa_fcs_itnim_sm_offline);
269 bfa_fcs_itnim_free(itnim);
278 bfa_fcs_itnim_sm_online(struct bfa_fcs_itnim_s *itnim,
279 enum bfa_fcs_itnim_event event)
281 bfa_trc(itnim->fcs, itnim->rport->pwwn);
282 bfa_trc(itnim->fcs, event);
285 case BFA_FCS_ITNIM_SM_OFFLINE:
286 bfa_sm_set_state(itnim, bfa_fcs_itnim_sm_hcb_offline);
287 bfa_fcb_itnim_offline(itnim->itnim_drv);
288 bfa_itnim_offline(itnim->bfa_itnim);
289 if (bfa_fcs_port_is_online(itnim->rport->port) == BFA_TRUE)
290 bfa_fcs_itnim_aen_post(itnim, BFA_ITNIM_AEN_DISCONNECT);
292 bfa_fcs_itnim_aen_post(itnim, BFA_ITNIM_AEN_OFFLINE);
295 case BFA_FCS_ITNIM_SM_DELETE:
296 bfa_sm_set_state(itnim, bfa_fcs_itnim_sm_offline);
297 bfa_fcs_itnim_free(itnim);
306 bfa_fcs_itnim_sm_hcb_offline(struct bfa_fcs_itnim_s *itnim,
307 enum bfa_fcs_itnim_event event)
309 bfa_trc(itnim->fcs, itnim->rport->pwwn);
310 bfa_trc(itnim->fcs, event);
313 case BFA_FCS_ITNIM_SM_HCB_OFFLINE:
314 bfa_sm_set_state(itnim, bfa_fcs_itnim_sm_offline);
315 bfa_fcs_rport_itnim_ack(itnim->rport);
318 case BFA_FCS_ITNIM_SM_DELETE:
319 bfa_sm_set_state(itnim, bfa_fcs_itnim_sm_offline);
320 bfa_fcs_itnim_free(itnim);
329 * This state is set when a discovered rport is also in intiator mode.
330 * This ITN is marked as no_op and is not active and will not be truned into
334 bfa_fcs_itnim_sm_initiator(struct bfa_fcs_itnim_s *itnim,
335 enum bfa_fcs_itnim_event event)
337 bfa_trc(itnim->fcs, itnim->rport->pwwn);
338 bfa_trc(itnim->fcs, event);
341 case BFA_FCS_ITNIM_SM_OFFLINE:
342 bfa_sm_set_state(itnim, bfa_fcs_itnim_sm_offline);
343 bfa_fcs_rport_itnim_ack(itnim->rport);
346 case BFA_FCS_ITNIM_SM_RSP_ERROR:
347 case BFA_FCS_ITNIM_SM_ONLINE:
348 case BFA_FCS_ITNIM_SM_INITIATOR:
351 case BFA_FCS_ITNIM_SM_DELETE:
352 bfa_sm_set_state(itnim, bfa_fcs_itnim_sm_offline);
353 bfa_fcs_itnim_free(itnim);
364 * itnim_private FCS ITNIM private interfaces
368 bfa_fcs_itnim_aen_post(struct bfa_fcs_itnim_s *itnim,
369 enum bfa_itnim_aen_event event)
371 struct bfa_fcs_rport_s *rport = itnim->rport;
372 union bfa_aen_data_u aen_data;
373 struct bfa_log_mod_s *logmod = rport->fcs->logm;
374 wwn_t lpwwn = bfa_fcs_port_get_pwwn(rport->port);
375 wwn_t rpwwn = rport->pwwn;
376 char lpwwn_ptr[BFA_STRING_32];
377 char rpwwn_ptr[BFA_STRING_32];
380 * Don't post events for well known addresses
382 if (BFA_FCS_PID_IS_WKA(rport->pid))
385 wwn2str(lpwwn_ptr, lpwwn);
386 wwn2str(rpwwn_ptr, rpwwn);
389 case BFA_ITNIM_AEN_ONLINE:
390 bfa_log(logmod, BFA_AEN_ITNIM_ONLINE, rpwwn_ptr, lpwwn_ptr);
392 case BFA_ITNIM_AEN_OFFLINE:
393 bfa_log(logmod, BFA_AEN_ITNIM_OFFLINE, rpwwn_ptr, lpwwn_ptr);
395 case BFA_ITNIM_AEN_DISCONNECT:
396 bfa_log(logmod, BFA_AEN_ITNIM_DISCONNECT, rpwwn_ptr, lpwwn_ptr);
402 aen_data.itnim.vf_id = rport->port->fabric->vf_id;
403 aen_data.itnim.ppwwn =
404 bfa_fcs_port_get_pwwn(bfa_fcs_get_base_port(itnim->fcs));
405 aen_data.itnim.lpwwn = lpwwn;
406 aen_data.itnim.rpwwn = rpwwn;
410 bfa_fcs_itnim_send_prli(void *itnim_cbarg, struct bfa_fcxp_s *fcxp_alloced)
412 struct bfa_fcs_itnim_s *itnim = itnim_cbarg;
413 struct bfa_fcs_rport_s *rport = itnim->rport;
414 struct bfa_fcs_port_s *port = rport->port;
416 struct bfa_fcxp_s *fcxp;
419 bfa_trc(itnim->fcs, itnim->rport->pwwn);
421 fcxp = fcxp_alloced ? fcxp_alloced : bfa_fcs_fcxp_alloc(port->fcs);
423 itnim->stats.fcxp_alloc_wait++;
424 bfa_fcxp_alloc_wait(port->fcs->bfa, &itnim->fcxp_wqe,
425 bfa_fcs_itnim_send_prli, itnim);
430 len = fc_prli_build(&fchs, bfa_fcxp_get_reqbuf(fcxp), itnim->rport->pid,
431 bfa_fcs_port_get_fcid(port), 0);
433 bfa_fcxp_send(fcxp, rport->bfa_rport, port->fabric->vf_id, port->lp_tag,
434 BFA_FALSE, FC_CLASS_3, len, &fchs,
435 bfa_fcs_itnim_prli_response, (void *)itnim, FC_MAX_PDUSZ,
438 itnim->stats.prli_sent++;
439 bfa_sm_send_event(itnim, BFA_FCS_ITNIM_SM_FRMSENT);
443 bfa_fcs_itnim_prli_response(void *fcsarg, struct bfa_fcxp_s *fcxp, void *cbarg,
444 bfa_status_t req_status, u32 rsp_len,
445 u32 resid_len, struct fchs_s *rsp_fchs)
447 struct bfa_fcs_itnim_s *itnim = (struct bfa_fcs_itnim_s *)cbarg;
448 struct fc_els_cmd_s *els_cmd;
449 struct fc_prli_s *prli_resp;
450 struct fc_ls_rjt_s *ls_rjt;
451 struct fc_prli_params_s *sparams;
453 bfa_trc(itnim->fcs, req_status);
458 if (req_status != BFA_STATUS_OK) {
459 itnim->stats.prli_rsp_err++;
460 bfa_sm_send_event(itnim, BFA_FCS_ITNIM_SM_RSP_ERROR);
464 els_cmd = (struct fc_els_cmd_s *) BFA_FCXP_RSP_PLD(fcxp);
466 if (els_cmd->els_code == FC_ELS_ACC) {
467 prli_resp = (struct fc_prli_s *) els_cmd;
469 if (fc_prli_rsp_parse(prli_resp, rsp_len) != FC_PARSE_OK) {
470 bfa_trc(itnim->fcs, rsp_len);
472 * Check if this r-port is also in Initiator mode.
473 * If so, we need to set this ITN as a no-op.
475 if (prli_resp->parampage.servparams.initiator) {
476 bfa_trc(itnim->fcs, prli_resp->parampage.type);
477 itnim->rport->scsi_function =
479 itnim->stats.prli_rsp_acc++;
480 bfa_sm_send_event(itnim,
481 BFA_FCS_ITNIM_SM_INITIATOR);
485 itnim->stats.prli_rsp_parse_err++;
488 itnim->rport->scsi_function = BFA_RPORT_TARGET;
490 sparams = &prli_resp->parampage.servparams;
491 itnim->seq_rec = sparams->retry;
492 itnim->rec_support = sparams->rec_support;
493 itnim->task_retry_id = sparams->task_retry_id;
494 itnim->conf_comp = sparams->confirm;
496 itnim->stats.prli_rsp_acc++;
497 bfa_sm_send_event(itnim, BFA_FCS_ITNIM_SM_RSP_OK);
499 ls_rjt = (struct fc_ls_rjt_s *) BFA_FCXP_RSP_PLD(fcxp);
501 bfa_trc(itnim->fcs, ls_rjt->reason_code);
502 bfa_trc(itnim->fcs, ls_rjt->reason_code_expl);
504 itnim->stats.prli_rsp_rjt++;
505 bfa_sm_send_event(itnim, BFA_FCS_ITNIM_SM_RSP_ERROR);
510 bfa_fcs_itnim_timeout(void *arg)
512 struct bfa_fcs_itnim_s *itnim = (struct bfa_fcs_itnim_s *)arg;
514 itnim->stats.timeout++;
515 bfa_sm_send_event(itnim, BFA_FCS_ITNIM_SM_TIMEOUT);
519 bfa_fcs_itnim_free(struct bfa_fcs_itnim_s *itnim)
521 bfa_itnim_delete(itnim->bfa_itnim);
522 bfa_fcb_itnim_free(itnim->fcs->bfad, itnim->itnim_drv);
528 * itnim_public FCS ITNIM public interfaces
532 * Called by rport when a new rport is created.
534 * @param[in] rport - remote port.
536 struct bfa_fcs_itnim_s *
537 bfa_fcs_itnim_create(struct bfa_fcs_rport_s *rport)
539 struct bfa_fcs_port_s *port = rport->port;
540 struct bfa_fcs_itnim_s *itnim;
541 struct bfad_itnim_s *itnim_drv;
542 struct bfa_itnim_s *bfa_itnim;
545 * call bfad to allocate the itnim
547 bfa_fcb_itnim_alloc(port->fcs->bfad, &itnim, &itnim_drv);
549 bfa_trc(port->fcs, rport->pwwn);
556 itnim->rport = rport;
557 itnim->fcs = rport->fcs;
558 itnim->itnim_drv = itnim_drv;
561 * call BFA to create the itnim
563 bfa_itnim = bfa_itnim_create(port->fcs->bfa, rport->bfa_rport, itnim);
565 if (bfa_itnim == NULL) {
566 bfa_trc(port->fcs, rport->pwwn);
567 bfa_fcb_itnim_free(port->fcs->bfad, itnim_drv);
572 itnim->bfa_itnim = bfa_itnim;
573 itnim->seq_rec = BFA_FALSE;
574 itnim->rec_support = BFA_FALSE;
575 itnim->conf_comp = BFA_FALSE;
576 itnim->task_retry_id = BFA_FALSE;
581 bfa_sm_set_state(itnim, bfa_fcs_itnim_sm_offline);
587 * Called by rport to delete the instance of FCPIM.
589 * @param[in] rport - remote port.
592 bfa_fcs_itnim_delete(struct bfa_fcs_itnim_s *itnim)
594 bfa_trc(itnim->fcs, itnim->rport->pid);
595 bfa_sm_send_event(itnim, BFA_FCS_ITNIM_SM_DELETE);
599 * Notification from rport that PLOGI is complete to initiate FC-4 session.
602 bfa_fcs_itnim_rport_online(struct bfa_fcs_itnim_s *itnim)
604 itnim->stats.onlines++;
606 if (!BFA_FCS_PID_IS_WKA(itnim->rport->pid)) {
607 bfa_sm_send_event(itnim, BFA_FCS_ITNIM_SM_ONLINE);
610 * For well known addresses, we set the itnim to initiator
613 itnim->stats.initiator++;
614 bfa_sm_send_event(itnim, BFA_FCS_ITNIM_SM_INITIATOR);
619 * Called by rport to handle a remote device offline.
622 bfa_fcs_itnim_rport_offline(struct bfa_fcs_itnim_s *itnim)
624 itnim->stats.offlines++;
625 bfa_sm_send_event(itnim, BFA_FCS_ITNIM_SM_OFFLINE);
629 * Called by rport when remote port is known to be an initiator from
633 bfa_fcs_itnim_is_initiator(struct bfa_fcs_itnim_s *itnim)
635 bfa_trc(itnim->fcs, itnim->rport->pid);
636 itnim->stats.initiator++;
637 bfa_sm_send_event(itnim, BFA_FCS_ITNIM_SM_INITIATOR);
641 * Called by rport to check if the itnim is online.
644 bfa_fcs_itnim_get_online_state(struct bfa_fcs_itnim_s *itnim)
646 bfa_trc(itnim->fcs, itnim->rport->pid);
647 switch (bfa_sm_to_state(itnim_sm_table, itnim->sm)) {
648 case BFA_ITNIM_ONLINE:
649 case BFA_ITNIM_INITIATIOR:
650 return BFA_STATUS_OK;
653 return BFA_STATUS_NO_FCPIM_NEXUS;
659 * BFA completion callback for bfa_itnim_online().
662 bfa_cb_itnim_online(void *cbarg)
664 struct bfa_fcs_itnim_s *itnim = (struct bfa_fcs_itnim_s *)cbarg;
666 bfa_trc(itnim->fcs, itnim->rport->pwwn);
667 bfa_sm_send_event(itnim, BFA_FCS_ITNIM_SM_HCB_ONLINE);
671 * BFA completion callback for bfa_itnim_offline().
674 bfa_cb_itnim_offline(void *cb_arg)
676 struct bfa_fcs_itnim_s *itnim = (struct bfa_fcs_itnim_s *)cb_arg;
678 bfa_trc(itnim->fcs, itnim->rport->pwwn);
679 bfa_sm_send_event(itnim, BFA_FCS_ITNIM_SM_HCB_OFFLINE);
683 * Mark the beginning of PATH TOV handling. IO completion callbacks
687 bfa_cb_itnim_tov_begin(void *cb_arg)
689 struct bfa_fcs_itnim_s *itnim = (struct bfa_fcs_itnim_s *)cb_arg;
691 bfa_trc(itnim->fcs, itnim->rport->pwwn);
692 bfa_fcb_itnim_tov_begin(itnim->itnim_drv);
696 * Mark the end of PATH TOV handling. All pending IOs are already cleaned up.
699 bfa_cb_itnim_tov(void *cb_arg)
701 struct bfa_fcs_itnim_s *itnim = (struct bfa_fcs_itnim_s *)cb_arg;
703 bfa_trc(itnim->fcs, itnim->rport->pwwn);
704 bfa_fcb_itnim_tov(itnim->itnim_drv);
708 * BFA notification to FCS/driver for second level error recovery.
710 * Atleast one I/O request has timedout and target is unresponsive to
711 * repeated abort requests. Second level error recovery should be initiated
712 * by starting implicit logout and recovery procedures.
715 bfa_cb_itnim_sler(void *cb_arg)
717 struct bfa_fcs_itnim_s *itnim = (struct bfa_fcs_itnim_s *)cb_arg;
720 bfa_trc(itnim->fcs, itnim->rport->pwwn);
721 bfa_fcs_rport_logo_imp(itnim->rport);
724 struct bfa_fcs_itnim_s *
725 bfa_fcs_itnim_lookup(struct bfa_fcs_port_s *port, wwn_t rpwwn)
727 struct bfa_fcs_rport_s *rport;
728 rport = bfa_fcs_rport_lookup(port, rpwwn);
733 bfa_assert(rport->itnim != NULL);
738 bfa_fcs_itnim_attr_get(struct bfa_fcs_port_s *port, wwn_t rpwwn,
739 struct bfa_itnim_attr_s *attr)
741 struct bfa_fcs_itnim_s *itnim = NULL;
743 itnim = bfa_fcs_itnim_lookup(port, rpwwn);
746 return BFA_STATUS_NO_FCPIM_NEXUS;
748 attr->state = bfa_sm_to_state(itnim_sm_table, itnim->sm);
749 attr->retry = itnim->seq_rec;
750 attr->rec_support = itnim->rec_support;
751 attr->conf_comp = itnim->conf_comp;
752 attr->task_retry_id = itnim->task_retry_id;
754 return BFA_STATUS_OK;
758 bfa_fcs_itnim_stats_get(struct bfa_fcs_port_s *port, wwn_t rpwwn,
759 struct bfa_itnim_stats_s *stats)
761 struct bfa_fcs_itnim_s *itnim = NULL;
763 bfa_assert(port != NULL);
765 itnim = bfa_fcs_itnim_lookup(port, rpwwn);
768 return BFA_STATUS_NO_FCPIM_NEXUS;
770 bfa_os_memcpy(stats, &itnim->stats, sizeof(struct bfa_itnim_stats_s));
772 return BFA_STATUS_OK;
776 bfa_fcs_itnim_stats_clear(struct bfa_fcs_port_s *port, wwn_t rpwwn)
778 struct bfa_fcs_itnim_s *itnim = NULL;
780 bfa_assert(port != NULL);
782 itnim = bfa_fcs_itnim_lookup(port, rpwwn);
785 return BFA_STATUS_NO_FCPIM_NEXUS;
787 bfa_os_memset(&itnim->stats, 0, sizeof(struct bfa_itnim_stats_s));
788 return BFA_STATUS_OK;
792 bfa_fcs_fcpim_uf_recv(struct bfa_fcs_itnim_s *itnim, struct fchs_s *fchs,
795 struct fc_els_cmd_s *els_cmd;
797 bfa_trc(itnim->fcs, fchs->type);
799 if (fchs->type != FC_TYPE_ELS)
802 els_cmd = (struct fc_els_cmd_s *) (fchs + 1);
804 bfa_trc(itnim->fcs, els_cmd->els_code);
806 switch (els_cmd->els_code) {
808 /* bfa_sm_send_event(itnim, BFA_FCS_ITNIM_SM_PRLO); */
817 bfa_fcs_itnim_pause(struct bfa_fcs_itnim_s *itnim)
822 bfa_fcs_itnim_resume(struct bfa_fcs_itnim_s *itnim)
827 * Module initialization
830 bfa_fcs_fcpim_modinit(struct bfa_fcs_s *fcs)
838 bfa_fcs_fcpim_modexit(struct bfa_fcs_s *fcs)
840 bfa_fcs_modexit_comp(fcs);