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[SCSI] bfa: IOC fixes, check for IOC down condition.
[GitHub/mt8127/android_kernel_alcatel_ttab.git] / drivers / scsi / bfa / rport.c
CommitLineData
7725ccfd
JH		 1/*
2 * Copyright (c) 2005-2009 Brocade Communications Systems, Inc.
3 * All rights reserved
4 * www.brocade.com
5 *
6 * Linux driver for Brocade Fibre Channel Host Bus Adapter.
7 *
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
11 *
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.
16 */
17
18/**
19 * rport.c Remote port implementation.
20 */
21
22#include <bfa.h>
23#include <bfa_svc.h>
24#include "fcbuild.h"
25#include "fcs_vport.h"
26#include "fcs_lport.h"
27#include "fcs_rport.h"
28#include "fcs_fcpim.h"
29#include "fcs_fcptm.h"
30#include "fcs_trcmod.h"
31#include "fcs_fcxp.h"
32#include "fcs.h"
33#include <fcb/bfa_fcb_rport.h>
34#include <aen/bfa_aen_rport.h>
35
36BFA_TRC_FILE(FCS, RPORT);
37
38#define BFA_FCS_RPORT_MAX_RETRIES (5)
39
40/* In millisecs */
41static u32 bfa_fcs_rport_del_timeout =
42 BFA_FCS_RPORT_DEF_DEL_TIMEOUT * 1000;
43
44/*
45 * forward declarations
46 */
47static struct bfa_fcs_rport_s *bfa_fcs_rport_alloc(struct bfa_fcs_port_s *port,
48 wwn_t pwwn, u32 rpid);
49static void bfa_fcs_rport_free(struct bfa_fcs_rport_s *rport);
50static void bfa_fcs_rport_hal_online(struct bfa_fcs_rport_s *rport);
51static void bfa_fcs_rport_online_action(struct bfa_fcs_rport_s *rport);
52static void bfa_fcs_rport_offline_action(struct bfa_fcs_rport_s *rport);
53static void bfa_fcs_rport_update(struct bfa_fcs_rport_s *rport,
54 struct fc_logi_s *plogi);
55static void bfa_fcs_rport_fc4_pause(struct bfa_fcs_rport_s *rport);
56static void bfa_fcs_rport_fc4_resume(struct bfa_fcs_rport_s *rport);
57static void bfa_fcs_rport_timeout(void *arg);
58static void bfa_fcs_rport_send_plogi(void *rport_cbarg,
59 struct bfa_fcxp_s *fcxp_alloced);
60static void bfa_fcs_rport_send_plogiacc(void *rport_cbarg,
61 struct bfa_fcxp_s *fcxp_alloced);
62static void bfa_fcs_rport_plogi_response(void *fcsarg,
63 struct bfa_fcxp_s *fcxp,
64 void *cbarg,
65 bfa_status_t req_status,
66 u32 rsp_len,
67 u32 resid_len,
68 struct fchs_s *rsp_fchs);
69static void bfa_fcs_rport_send_adisc(void *rport_cbarg,
70 struct bfa_fcxp_s *fcxp_alloced);
71static void bfa_fcs_rport_adisc_response(void *fcsarg,
72 struct bfa_fcxp_s *fcxp,
73 void *cbarg,
74 bfa_status_t req_status,
75 u32 rsp_len,
76 u32 resid_len,
77 struct fchs_s *rsp_fchs);
78static void bfa_fcs_rport_send_gidpn(void *rport_cbarg,
79 struct bfa_fcxp_s *fcxp_alloced);
80static void bfa_fcs_rport_gidpn_response(void *fcsarg,
81 struct bfa_fcxp_s *fcxp,
82 void *cbarg,
83 bfa_status_t req_status,
84 u32 rsp_len,
85 u32 resid_len,
86 struct fchs_s *rsp_fchs);
87static void bfa_fcs_rport_send_logo(void *rport_cbarg,
88 struct bfa_fcxp_s *fcxp_alloced);
89static void bfa_fcs_rport_send_logo_acc(void *rport_cbarg);
90static void bfa_fcs_rport_process_prli(struct bfa_fcs_rport_s *rport,
91 struct fchs_s *rx_fchs, u16 len);
92static void bfa_fcs_rport_send_ls_rjt(struct bfa_fcs_rport_s *rport,
93 struct fchs_s *rx_fchs, u8 reason_code,
94 u8 reason_code_expl);
95static void bfa_fcs_rport_process_adisc(struct bfa_fcs_rport_s *rport,
96 struct fchs_s *rx_fchs, u16 len);
97/**
98 * fcs_rport_sm FCS rport state machine events
99 */
100
101enum rport_event {
102 RPSM_EVENT_PLOGI_SEND = 1, /* new rport; start with PLOGI */
103 RPSM_EVENT_PLOGI_RCVD = 2, /* Inbound PLOGI from remote port */
104 RPSM_EVENT_PLOGI_COMP = 3, /* PLOGI completed to rport */
105 RPSM_EVENT_LOGO_RCVD = 4, /* LOGO from remote device */
106 RPSM_EVENT_LOGO_IMP = 5, /* implicit logo for SLER */
107 RPSM_EVENT_FCXP_SENT = 6, /* Frame from has been sent */
108 RPSM_EVENT_DELETE = 7, /* RPORT delete request */
109 RPSM_EVENT_SCN = 8, /* state change notification */
110 RPSM_EVENT_ACCEPTED = 9,/* Good response from remote device */
111 RPSM_EVENT_FAILED = 10, /* Request to rport failed. */
112 RPSM_EVENT_TIMEOUT = 11, /* Rport SM timeout event */
113 RPSM_EVENT_HCB_ONLINE = 12, /* BFA rport online callback */
114 RPSM_EVENT_HCB_OFFLINE = 13, /* BFA rport offline callback */
115 RPSM_EVENT_FC4_OFFLINE = 14, /* FC-4 offline complete */
116 RPSM_EVENT_ADDRESS_CHANGE = 15, /* Rport's PID has changed */
117 RPSM_EVENT_ADDRESS_DISC = 16 /* Need to Discover rport's PID */
118};
119
120static void bfa_fcs_rport_sm_uninit(struct bfa_fcs_rport_s *rport,
121 enum rport_event event);
122static void bfa_fcs_rport_sm_plogi_sending(struct bfa_fcs_rport_s *rport,
123 enum rport_event event);
124static void bfa_fcs_rport_sm_plogiacc_sending(struct bfa_fcs_rport_s *rport,
125 enum rport_event event);
126static void bfa_fcs_rport_sm_plogi_retry(struct bfa_fcs_rport_s *rport,
127 enum rport_event event);
128static void bfa_fcs_rport_sm_plogi(struct bfa_fcs_rport_s *rport,
129 enum rport_event event);
130static void bfa_fcs_rport_sm_hal_online(struct bfa_fcs_rport_s *rport,
131 enum rport_event event);
132static void bfa_fcs_rport_sm_online(struct bfa_fcs_rport_s *rport,
133 enum rport_event event);
134static void bfa_fcs_rport_sm_nsquery_sending(struct bfa_fcs_rport_s *rport,
135 enum rport_event event);
136static void bfa_fcs_rport_sm_nsquery(struct bfa_fcs_rport_s *rport,
137 enum rport_event event);
138static void bfa_fcs_rport_sm_adisc_sending(struct bfa_fcs_rport_s *rport,
139 enum rport_event event);
140static void bfa_fcs_rport_sm_adisc(struct bfa_fcs_rport_s *rport,
141 enum rport_event event);
142static void bfa_fcs_rport_sm_fc4_logorcv(struct bfa_fcs_rport_s *rport,
143 enum rport_event event);
144static void bfa_fcs_rport_sm_fc4_logosend(struct bfa_fcs_rport_s *rport,
145 enum rport_event event);
146static void bfa_fcs_rport_sm_fc4_offline(struct bfa_fcs_rport_s *rport,
147 enum rport_event event);
148static void bfa_fcs_rport_sm_hcb_offline(struct bfa_fcs_rport_s *rport,
149 enum rport_event event);
150static void bfa_fcs_rport_sm_hcb_logorcv(struct bfa_fcs_rport_s *rport,
151 enum rport_event event);
152static void bfa_fcs_rport_sm_hcb_logosend(struct bfa_fcs_rport_s *rport,
153 enum rport_event event);
154static void bfa_fcs_rport_sm_logo_sending(struct bfa_fcs_rport_s *rport,
155 enum rport_event event);
156static void bfa_fcs_rport_sm_offline(struct bfa_fcs_rport_s *rport,
157 enum rport_event event);
158static void bfa_fcs_rport_sm_nsdisc_sending(struct bfa_fcs_rport_s *rport,
159 enum rport_event event);
160static void bfa_fcs_rport_sm_nsdisc_retry(struct bfa_fcs_rport_s *rport,
161 enum rport_event event);
162static void bfa_fcs_rport_sm_nsdisc_sent(struct bfa_fcs_rport_s *rport,
163 enum rport_event event);
164static void bfa_fcs_rport_sm_nsdisc_sent(struct bfa_fcs_rport_s *rport,
165 enum rport_event event);
166
167static struct bfa_sm_table_s rport_sm_table[] = {
168 {BFA_SM(bfa_fcs_rport_sm_uninit), BFA_RPORT_UNINIT},
169 {BFA_SM(bfa_fcs_rport_sm_plogi_sending), BFA_RPORT_PLOGI},
170 {BFA_SM(bfa_fcs_rport_sm_plogiacc_sending), BFA_RPORT_ONLINE},
171 {BFA_SM(bfa_fcs_rport_sm_plogi_retry), BFA_RPORT_PLOGI_RETRY},
172 {BFA_SM(bfa_fcs_rport_sm_plogi), BFA_RPORT_PLOGI},
173 {BFA_SM(bfa_fcs_rport_sm_hal_online), BFA_RPORT_ONLINE},
174 {BFA_SM(bfa_fcs_rport_sm_online), BFA_RPORT_ONLINE},
175 {BFA_SM(bfa_fcs_rport_sm_nsquery_sending), BFA_RPORT_NSQUERY},
176 {BFA_SM(bfa_fcs_rport_sm_nsquery), BFA_RPORT_NSQUERY},
177 {BFA_SM(bfa_fcs_rport_sm_adisc_sending), BFA_RPORT_ADISC},
178 {BFA_SM(bfa_fcs_rport_sm_adisc), BFA_RPORT_ADISC},
179 {BFA_SM(bfa_fcs_rport_sm_fc4_logorcv), BFA_RPORT_LOGORCV},
180 {BFA_SM(bfa_fcs_rport_sm_fc4_logosend), BFA_RPORT_LOGO},
181 {BFA_SM(bfa_fcs_rport_sm_fc4_offline), BFA_RPORT_OFFLINE},
182 {BFA_SM(bfa_fcs_rport_sm_hcb_offline), BFA_RPORT_OFFLINE},
183 {BFA_SM(bfa_fcs_rport_sm_hcb_logorcv), BFA_RPORT_LOGORCV},
184 {BFA_SM(bfa_fcs_rport_sm_hcb_logosend), BFA_RPORT_LOGO},
185 {BFA_SM(bfa_fcs_rport_sm_logo_sending), BFA_RPORT_LOGO},
186 {BFA_SM(bfa_fcs_rport_sm_offline), BFA_RPORT_OFFLINE},
187 {BFA_SM(bfa_fcs_rport_sm_nsdisc_sending), BFA_RPORT_NSDISC},
188 {BFA_SM(bfa_fcs_rport_sm_nsdisc_retry), BFA_RPORT_NSDISC},
189 {BFA_SM(bfa_fcs_rport_sm_nsdisc_sent), BFA_RPORT_NSDISC},
190};
191
192/**
193 * Beginning state.
194 */
195static void
196bfa_fcs_rport_sm_uninit(struct bfa_fcs_rport_s *rport, enum rport_event event)
197{
198 bfa_trc(rport->fcs, rport->pwwn);
199 bfa_trc(rport->fcs, rport->pid);
200 bfa_trc(rport->fcs, event);
201
202 switch (event) {
203 case RPSM_EVENT_PLOGI_SEND:
204 bfa_sm_set_state(rport, bfa_fcs_rport_sm_plogi_sending);
205 rport->plogi_retries = 0;
206 bfa_fcs_rport_send_plogi(rport, NULL);
207 break;
208
209 case RPSM_EVENT_PLOGI_RCVD:
210 bfa_sm_set_state(rport, bfa_fcs_rport_sm_plogiacc_sending);
211 bfa_fcs_rport_send_plogiacc(rport, NULL);
212 break;
213
214 case RPSM_EVENT_PLOGI_COMP:
215 bfa_sm_set_state(rport, bfa_fcs_rport_sm_hal_online);
216 bfa_fcs_rport_hal_online(rport);
217 break;
218
219 case RPSM_EVENT_ADDRESS_CHANGE:
220 case RPSM_EVENT_ADDRESS_DISC:
221 bfa_sm_set_state(rport, bfa_fcs_rport_sm_nsdisc_sending);
222 rport->ns_retries = 0;
223 bfa_fcs_rport_send_gidpn(rport, NULL);
224 break;
225
226 default:
e641de37 227 bfa_sm_fault(rport->fcs, event);
7725ccfd
JH		 228 }
229}
230
231/**
232 * PLOGI is being sent.
233 */
234static void
235bfa_fcs_rport_sm_plogi_sending(struct bfa_fcs_rport_s *rport,
236 enum rport_event event)
237{
238 bfa_trc(rport->fcs, rport->pwwn);
239 bfa_trc(rport->fcs, rport->pid);
240 bfa_trc(rport->fcs, event);
241
242 switch (event) {
243 case RPSM_EVENT_FCXP_SENT:
244 bfa_sm_set_state(rport, bfa_fcs_rport_sm_plogi);
245 break;
246
247 case RPSM_EVENT_DELETE:
248 bfa_sm_set_state(rport, bfa_fcs_rport_sm_uninit);
249 bfa_fcxp_walloc_cancel(rport->fcs->bfa, &rport->fcxp_wqe);
250 bfa_fcs_rport_free(rport);
251 break;
252
253 case RPSM_EVENT_PLOGI_RCVD:
254 bfa_sm_set_state(rport, bfa_fcs_rport_sm_plogiacc_sending);
255 bfa_fcxp_walloc_cancel(rport->fcs->bfa, &rport->fcxp_wqe);
256 bfa_fcs_rport_send_plogiacc(rport, NULL);
257 break;
258
259 case RPSM_EVENT_ADDRESS_CHANGE:
260 bfa_fcxp_walloc_cancel(rport->fcs->bfa, &rport->fcxp_wqe);
261 bfa_sm_set_state(rport, bfa_fcs_rport_sm_nsdisc_sending);
262 rport->ns_retries = 0;
263 bfa_fcs_rport_send_gidpn(rport, NULL);
264 break;
265
266 case RPSM_EVENT_LOGO_IMP:
267 rport->pid = 0;
268 bfa_sm_set_state(rport, bfa_fcs_rport_sm_offline);
269 bfa_fcxp_walloc_cancel(rport->fcs->bfa, &rport->fcxp_wqe);
270 bfa_timer_start(rport->fcs->bfa, &rport->timer,
271 bfa_fcs_rport_timeout, rport,
272 bfa_fcs_rport_del_timeout);
273 break;
274
275 case RPSM_EVENT_SCN:
276 break;
277
278 default:
e641de37 279 bfa_sm_fault(rport->fcs, event);
7725ccfd
JH		 280 }
281}
282
283/**
284 * PLOGI is being sent.
285 */
286static void
287bfa_fcs_rport_sm_plogiacc_sending(struct bfa_fcs_rport_s *rport,
288 enum rport_event event)
289{
290 bfa_trc(rport->fcs, rport->pwwn);
291 bfa_trc(rport->fcs, rport->pid);
292 bfa_trc(rport->fcs, event);
293
294 switch (event) {
295 case RPSM_EVENT_FCXP_SENT:
296 bfa_sm_set_state(rport, bfa_fcs_rport_sm_hal_online);
297 bfa_fcs_rport_hal_online(rport);
298 break;
299
300 case RPSM_EVENT_DELETE:
301 bfa_sm_set_state(rport, bfa_fcs_rport_sm_uninit);
302 bfa_fcxp_walloc_cancel(rport->fcs->bfa, &rport->fcxp_wqe);
303 bfa_fcs_rport_free(rport);
304 break;
305
306 case RPSM_EVENT_SCN:
307 /**
308 * Ignore, SCN is possibly online notification.
309 */
310 break;
311
312 case RPSM_EVENT_ADDRESS_CHANGE:
313 bfa_fcxp_walloc_cancel(rport->fcs->bfa, &rport->fcxp_wqe);
314 bfa_sm_set_state(rport, bfa_fcs_rport_sm_nsdisc_sending);
315 rport->ns_retries = 0;
316 bfa_fcs_rport_send_gidpn(rport, NULL);
317 break;
318
319 case RPSM_EVENT_LOGO_IMP:
320 rport->pid = 0;
321 bfa_sm_set_state(rport, bfa_fcs_rport_sm_offline);
322 bfa_fcxp_walloc_cancel(rport->fcs->bfa, &rport->fcxp_wqe);
323 bfa_timer_start(rport->fcs->bfa, &rport->timer,
324 bfa_fcs_rport_timeout, rport,
325 bfa_fcs_rport_del_timeout);
326 break;
327
328 case RPSM_EVENT_HCB_OFFLINE:
329 /**
330 * Ignore BFA callback, on a PLOGI receive we call bfa offline.
331 */
332 break;
333
334 default:
e641de37 335 bfa_sm_fault(rport->fcs, event);
7725ccfd
JH		 336 }
337}
338
339/**
340 * PLOGI is sent.
341 */
342static void
343bfa_fcs_rport_sm_plogi_retry(struct bfa_fcs_rport_s *rport,
344 enum rport_event event)
345{
346 bfa_trc(rport->fcs, rport->pwwn);
347 bfa_trc(rport->fcs, rport->pid);
348 bfa_trc(rport->fcs, event);
349
350 switch (event) {
351 case RPSM_EVENT_SCN:
352 bfa_timer_stop(&rport->timer);
353 /*
354 * !! fall through !!
355 */
356
357 case RPSM_EVENT_TIMEOUT:
358 rport->plogi_retries++;
359 if (rport->plogi_retries < BFA_FCS_RPORT_MAX_RETRIES) {
360 bfa_sm_set_state(rport, bfa_fcs_rport_sm_plogi_sending);
361 bfa_fcs_rport_send_plogi(rport, NULL);
362 } else {
363 rport->pid = 0;
364 bfa_sm_set_state(rport, bfa_fcs_rport_sm_offline);
365 bfa_timer_start(rport->fcs->bfa, &rport->timer,
366 bfa_fcs_rport_timeout, rport,
367 bfa_fcs_rport_del_timeout);
368 }
369 break;
370
371 case RPSM_EVENT_DELETE:
372 bfa_sm_set_state(rport, bfa_fcs_rport_sm_uninit);
373 bfa_timer_stop(&rport->timer);
374 bfa_fcs_rport_free(rport);
375 break;
376
377 case RPSM_EVENT_LOGO_RCVD:
378 break;
379
380 case RPSM_EVENT_PLOGI_RCVD:
381 bfa_sm_set_state(rport, bfa_fcs_rport_sm_plogiacc_sending);
382 bfa_timer_stop(&rport->timer);
383 bfa_fcs_rport_send_plogiacc(rport, NULL);
384 break;
385
386 case RPSM_EVENT_ADDRESS_CHANGE:
387 bfa_timer_stop(&rport->timer);
388 bfa_sm_set_state(rport, bfa_fcs_rport_sm_nsdisc_sending);
389 rport->ns_retries = 0;
390 bfa_fcs_rport_send_gidpn(rport, NULL);
391 break;
392
393 case RPSM_EVENT_LOGO_IMP:
394 rport->pid = 0;
395 bfa_sm_set_state(rport, bfa_fcs_rport_sm_offline);
396 bfa_timer_stop(&rport->timer);
397 bfa_timer_start(rport->fcs->bfa, &rport->timer,
398 bfa_fcs_rport_timeout, rport,
399 bfa_fcs_rport_del_timeout);
400 break;
401
402 case RPSM_EVENT_PLOGI_COMP:
403 bfa_sm_set_state(rport, bfa_fcs_rport_sm_hal_online);
404 bfa_timer_stop(&rport->timer);
405 bfa_fcs_rport_hal_online(rport);
406 break;
407
408 default:
e641de37 409 bfa_sm_fault(rport->fcs, event);
7725ccfd
JH		 410 }
411}
412
413/**
414 * PLOGI is sent.
415 */
416static void
417bfa_fcs_rport_sm_plogi(struct bfa_fcs_rport_s *rport, enum rport_event event)
418{
419 bfa_trc(rport->fcs, rport->pwwn);
420 bfa_trc(rport->fcs, rport->pid);
421 bfa_trc(rport->fcs, event);
422
423 switch (event) {
424 case RPSM_EVENT_ACCEPTED:
425 bfa_sm_set_state(rport, bfa_fcs_rport_sm_hal_online);
426 rport->plogi_retries = 0;
427 bfa_fcs_rport_hal_online(rport);
428 break;
429
430 case RPSM_EVENT_LOGO_RCVD:
431 bfa_fcs_rport_send_logo_acc(rport);
432 bfa_fcxp_discard(rport->fcxp);
433 /*
434 * !! fall through !!
435 */
436 case RPSM_EVENT_FAILED:
437 bfa_sm_set_state(rport, bfa_fcs_rport_sm_plogi_retry);
438 bfa_timer_start(rport->fcs->bfa, &rport->timer,
439 bfa_fcs_rport_timeout, rport,
440 BFA_FCS_RETRY_TIMEOUT);
441 break;
442
443 case RPSM_EVENT_LOGO_IMP:
444 rport->pid = 0;
445 bfa_sm_set_state(rport, bfa_fcs_rport_sm_offline);
446 bfa_fcxp_discard(rport->fcxp);
447 bfa_timer_start(rport->fcs->bfa, &rport->timer,
448 bfa_fcs_rport_timeout, rport,
449 bfa_fcs_rport_del_timeout);
450 break;
451
452 case RPSM_EVENT_ADDRESS_CHANGE:
453 bfa_fcxp_discard(rport->fcxp);
454 bfa_sm_set_state(rport, bfa_fcs_rport_sm_nsdisc_sending);
455 rport->ns_retries = 0;
456 bfa_fcs_rport_send_gidpn(rport, NULL);
457 break;
458
459 case RPSM_EVENT_PLOGI_RCVD:
460 bfa_sm_set_state(rport, bfa_fcs_rport_sm_plogiacc_sending);
461 bfa_fcxp_discard(rport->fcxp);
462 bfa_fcs_rport_send_plogiacc(rport, NULL);
463 break;
464
465 case RPSM_EVENT_SCN:
466 /**
467 * Ignore SCN - wait for PLOGI response.
468 */
469 break;
470
471 case RPSM_EVENT_DELETE:
472 bfa_sm_set_state(rport, bfa_fcs_rport_sm_uninit);
473 bfa_fcxp_discard(rport->fcxp);
474 bfa_fcs_rport_free(rport);
475 break;
476
477 case RPSM_EVENT_PLOGI_COMP:
478 bfa_sm_set_state(rport, bfa_fcs_rport_sm_hal_online);
479 bfa_fcxp_discard(rport->fcxp);
480 bfa_fcs_rport_hal_online(rport);
481 break;
482
483 default:
e641de37 484 bfa_sm_fault(rport->fcs, event);
7725ccfd
JH		 485 }
486}
487
488/**
489 * PLOGI is complete. Awaiting BFA rport online callback. FC-4s
490 * are offline.
491 */
492static void
493bfa_fcs_rport_sm_hal_online(struct bfa_fcs_rport_s *rport,
494 enum rport_event event)
495{
496 bfa_trc(rport->fcs, rport->pwwn);
497 bfa_trc(rport->fcs, rport->pid);
498 bfa_trc(rport->fcs, event);
499
500 switch (event) {
501 case RPSM_EVENT_HCB_ONLINE:
502 bfa_sm_set_state(rport, bfa_fcs_rport_sm_online);
503 bfa_fcs_rport_online_action(rport);
504 break;
505
506 case RPSM_EVENT_LOGO_RCVD:
507 bfa_sm_set_state(rport, bfa_fcs_rport_sm_hcb_logorcv);
508 bfa_rport_offline(rport->bfa_rport);
509 break;
510
511 case RPSM_EVENT_LOGO_IMP:
512 case RPSM_EVENT_ADDRESS_CHANGE:
513 bfa_sm_set_state(rport, bfa_fcs_rport_sm_hcb_offline);
514 bfa_rport_offline(rport->bfa_rport);
515 break;
516
517 case RPSM_EVENT_PLOGI_RCVD:
518 bfa_sm_set_state(rport, bfa_fcs_rport_sm_plogiacc_sending);
519 bfa_rport_offline(rport->bfa_rport);
520 bfa_fcs_rport_send_plogiacc(rport, NULL);
521 break;
522
523 case RPSM_EVENT_DELETE:
524 bfa_sm_set_state(rport, bfa_fcs_rport_sm_hcb_logosend);
525 bfa_rport_offline(rport->bfa_rport);
526 break;
527
528 case RPSM_EVENT_SCN:
529 /**
530 * @todo
531 * Ignore SCN - PLOGI just completed, FC-4 login should detect
532 * device failures.
533 */
534 break;
535
536 default:
e641de37 537 bfa_sm_fault(rport->fcs, event);
7725ccfd
JH		 538 }
539}
540
541/**
542 * Rport is ONLINE. FC-4s active.
543 */
544static void
545bfa_fcs_rport_sm_online(struct bfa_fcs_rport_s *rport, enum rport_event event)
546{
547 bfa_trc(rport->fcs, rport->pwwn);
548 bfa_trc(rport->fcs, rport->pid);
549 bfa_trc(rport->fcs, event);
550
551 switch (event) {
552 case RPSM_EVENT_SCN:
553 /**
554 * Pause FC-4 activity till rport is authenticated.
555 * In switched fabrics, check presence of device in nameserver
556 * first.
557 */
558 bfa_fcs_rport_fc4_pause(rport);
559
560 if (bfa_fcs_fabric_is_switched(rport->port->fabric)) {
561 bfa_sm_set_state(rport,
562 bfa_fcs_rport_sm_nsquery_sending);
563 rport->ns_retries = 0;
564 bfa_fcs_rport_send_gidpn(rport, NULL);
565 } else {
566 bfa_sm_set_state(rport, bfa_fcs_rport_sm_adisc_sending);
567 bfa_fcs_rport_send_adisc(rport, NULL);
568 }
569 break;
570
571 case RPSM_EVENT_PLOGI_RCVD:
572 case RPSM_EVENT_LOGO_IMP:
573 case RPSM_EVENT_ADDRESS_CHANGE:
574 bfa_sm_set_state(rport, bfa_fcs_rport_sm_fc4_offline);
575 bfa_fcs_rport_offline_action(rport);
576 break;
577
578 case RPSM_EVENT_DELETE:
579 bfa_sm_set_state(rport, bfa_fcs_rport_sm_fc4_logosend);
580 bfa_fcs_rport_offline_action(rport);
581 break;
582
583 case RPSM_EVENT_LOGO_RCVD:
584 bfa_sm_set_state(rport, bfa_fcs_rport_sm_fc4_logorcv);
585 bfa_fcs_rport_offline_action(rport);
586 break;
587
588 case RPSM_EVENT_PLOGI_COMP:
589 break;
590
591 default:
e641de37 592 bfa_sm_fault(rport->fcs, event);
7725ccfd
JH		 593 }
594}
595
596/**
597 * An SCN event is received in ONLINE state. NS query is being sent
598 * prior to ADISC authentication with rport. FC-4s are paused.
599 */
600static void
601bfa_fcs_rport_sm_nsquery_sending(struct bfa_fcs_rport_s *rport,
602 enum rport_event event)
603{
604 bfa_trc(rport->fcs, rport->pwwn);
605 bfa_trc(rport->fcs, rport->pid);
606 bfa_trc(rport->fcs, event);
607
608 switch (event) {
609 case RPSM_EVENT_FCXP_SENT:
610 bfa_sm_set_state(rport, bfa_fcs_rport_sm_nsquery);
611 break;
612
613 case RPSM_EVENT_DELETE:
614 bfa_sm_set_state(rport, bfa_fcs_rport_sm_fc4_logosend);
615 bfa_fcxp_walloc_cancel(rport->fcs->bfa, &rport->fcxp_wqe);
616 bfa_fcs_rport_offline_action(rport);
617 break;
618
619 case RPSM_EVENT_SCN:
620 /**
621 * ignore SCN, wait for response to query itself
622 */
623 break;
624
625 case RPSM_EVENT_LOGO_RCVD:
626 bfa_sm_set_state(rport, bfa_fcs_rport_sm_fc4_logorcv);
627 bfa_fcxp_walloc_cancel(rport->fcs->bfa, &rport->fcxp_wqe);
628 bfa_fcs_rport_offline_action(rport);
629 break;
630
631 case RPSM_EVENT_LOGO_IMP:
632 rport->pid = 0;
633 bfa_sm_set_state(rport, bfa_fcs_rport_sm_offline);
634 bfa_fcxp_walloc_cancel(rport->fcs->bfa, &rport->fcxp_wqe);
635 bfa_timer_start(rport->fcs->bfa, &rport->timer,
636 bfa_fcs_rport_timeout, rport,
637 bfa_fcs_rport_del_timeout);
638 break;
639
640 case RPSM_EVENT_PLOGI_RCVD:
641 case RPSM_EVENT_ADDRESS_CHANGE:
642 case RPSM_EVENT_PLOGI_COMP:
643 bfa_sm_set_state(rport, bfa_fcs_rport_sm_fc4_offline);
644 bfa_fcxp_walloc_cancel(rport->fcs->bfa, &rport->fcxp_wqe);
645 bfa_fcs_rport_offline_action(rport);
646 break;
647
648 default:
e641de37 649 bfa_sm_fault(rport->fcs, event);
7725ccfd
JH		 650 }
651}
652
653/**
654 * An SCN event is received in ONLINE state. NS query is sent to rport.
655 * FC-4s are paused.
656 */
657static void
658bfa_fcs_rport_sm_nsquery(struct bfa_fcs_rport_s *rport, enum rport_event event)
659{
660 bfa_trc(rport->fcs, rport->pwwn);
661 bfa_trc(rport->fcs, rport->pid);
662 bfa_trc(rport->fcs, event);
663
664 switch (event) {
665 case RPSM_EVENT_ACCEPTED:
666 bfa_sm_set_state(rport, bfa_fcs_rport_sm_adisc_sending);
667 bfa_fcs_rport_send_adisc(rport, NULL);
668 break;
669
670 case RPSM_EVENT_FAILED:
671 rport->ns_retries++;
672 if (rport->ns_retries < BFA_FCS_RPORT_MAX_RETRIES) {
673 bfa_sm_set_state(rport,
674 bfa_fcs_rport_sm_nsquery_sending);
675 bfa_fcs_rport_send_gidpn(rport, NULL);
676 } else {
677 bfa_sm_set_state(rport, bfa_fcs_rport_sm_fc4_offline);
678 bfa_fcs_rport_offline_action(rport);
679 }
680 break;
681
682 case RPSM_EVENT_DELETE:
683 bfa_sm_set_state(rport, bfa_fcs_rport_sm_fc4_logosend);
684 bfa_fcxp_discard(rport->fcxp);
685 bfa_fcs_rport_offline_action(rport);
686 break;
687
688 case RPSM_EVENT_SCN:
689 break;
690
691 case RPSM_EVENT_LOGO_RCVD:
692 bfa_sm_set_state(rport, bfa_fcs_rport_sm_fc4_logorcv);
693 bfa_fcxp_discard(rport->fcxp);
694 bfa_fcs_rport_offline_action(rport);
695 break;
696
697 case RPSM_EVENT_PLOGI_COMP:
698 case RPSM_EVENT_ADDRESS_CHANGE:
699 case RPSM_EVENT_PLOGI_RCVD:
700 case RPSM_EVENT_LOGO_IMP:
701 bfa_sm_set_state(rport, bfa_fcs_rport_sm_fc4_offline);
702 bfa_fcxp_discard(rport->fcxp);
703 bfa_fcs_rport_offline_action(rport);
704 break;
705
706 default:
e641de37 707 bfa_sm_fault(rport->fcs, event);
7725ccfd
JH		 708 }
709}
710
711/**
712 * An SCN event is received in ONLINE state. ADISC is being sent for
713 * authenticating with rport. FC-4s are paused.
714 */
715static void
716bfa_fcs_rport_sm_adisc_sending(struct bfa_fcs_rport_s *rport,
717 enum rport_event event)
718{
719 bfa_trc(rport->fcs, rport->pwwn);
720 bfa_trc(rport->fcs, rport->pid);
721 bfa_trc(rport->fcs, event);
722
723 switch (event) {
724 case RPSM_EVENT_FCXP_SENT:
725 bfa_sm_set_state(rport, bfa_fcs_rport_sm_adisc);
726 break;
727
728 case RPSM_EVENT_DELETE:
729 bfa_sm_set_state(rport, bfa_fcs_rport_sm_fc4_logosend);
730 bfa_fcxp_walloc_cancel(rport->fcs->bfa, &rport->fcxp_wqe);
731 bfa_fcs_rport_offline_action(rport);
732 break;
733
734 case RPSM_EVENT_LOGO_IMP:
735 case RPSM_EVENT_ADDRESS_CHANGE:
736 bfa_sm_set_state(rport, bfa_fcs_rport_sm_fc4_offline);
737 bfa_fcxp_walloc_cancel(rport->fcs->bfa, &rport->fcxp_wqe);
738 bfa_fcs_rport_offline_action(rport);
739 break;
740
741 case RPSM_EVENT_LOGO_RCVD:
742 bfa_sm_set_state(rport, bfa_fcs_rport_sm_fc4_logorcv);
743 bfa_fcxp_walloc_cancel(rport->fcs->bfa, &rport->fcxp_wqe);
744 bfa_fcs_rport_offline_action(rport);
745 break;
746
747 case RPSM_EVENT_SCN:
748 break;
749
750 case RPSM_EVENT_PLOGI_RCVD:
751 bfa_sm_set_state(rport, bfa_fcs_rport_sm_fc4_offline);
752 bfa_fcxp_walloc_cancel(rport->fcs->bfa, &rport->fcxp_wqe);
753 bfa_fcs_rport_offline_action(rport);
754 break;
755
756 default:
e641de37 757 bfa_sm_fault(rport->fcs, event);
7725ccfd
JH		 758 }
759}
760
761/**
762 * An SCN event is received in ONLINE state. ADISC is to rport.
763 * FC-4s are paused.
764 */
765static void
766bfa_fcs_rport_sm_adisc(struct bfa_fcs_rport_s *rport, enum rport_event event)
767{
768 bfa_trc(rport->fcs, rport->pwwn);
769 bfa_trc(rport->fcs, rport->pid);
770 bfa_trc(rport->fcs, event);
771
772 switch (event) {
773 case RPSM_EVENT_ACCEPTED:
774 bfa_sm_set_state(rport, bfa_fcs_rport_sm_online);
775 bfa_fcs_rport_fc4_resume(rport);
776 break;
777
778 case RPSM_EVENT_PLOGI_RCVD:
779 /**
780 * Too complex to cleanup FC-4 & rport and then acc to PLOGI.
781 * At least go offline when a PLOGI is received.
782 */
783 bfa_fcxp_discard(rport->fcxp);
784 /*
785 * !!! fall through !!!
786 */
787
788 case RPSM_EVENT_FAILED:
789 case RPSM_EVENT_ADDRESS_CHANGE:
790 bfa_sm_set_state(rport, bfa_fcs_rport_sm_fc4_offline);
791 bfa_fcs_rport_offline_action(rport);
792 break;
793
794 case RPSM_EVENT_DELETE:
795 bfa_sm_set_state(rport, bfa_fcs_rport_sm_fc4_logosend);
796 bfa_fcxp_discard(rport->fcxp);
797 bfa_fcs_rport_offline_action(rport);
798 break;
799
800 case RPSM_EVENT_SCN:
801 /**
802 * already processing RSCN
803 */
804 break;
805
806 case RPSM_EVENT_LOGO_IMP:
807 bfa_sm_set_state(rport, bfa_fcs_rport_sm_fc4_offline);
808 bfa_fcxp_discard(rport->fcxp);
809 bfa_fcs_rport_offline_action(rport);
810 break;
811
812 case RPSM_EVENT_LOGO_RCVD:
813 bfa_sm_set_state(rport, bfa_fcs_rport_sm_fc4_logorcv);
814 bfa_fcxp_discard(rport->fcxp);
815 bfa_fcs_rport_offline_action(rport);
816 break;
817
818 default:
e641de37 819 bfa_sm_fault(rport->fcs, event);
7725ccfd
JH		 820 }
821}
822
823/**
824 * Rport has sent LOGO. Awaiting FC-4 offline completion callback.
825 */
826static void
827bfa_fcs_rport_sm_fc4_logorcv(struct bfa_fcs_rport_s *rport,
828 enum rport_event event)
829{
830 bfa_trc(rport->fcs, rport->pwwn);
831 bfa_trc(rport->fcs, rport->pid);
832 bfa_trc(rport->fcs, event);
833
834 switch (event) {
835 case RPSM_EVENT_FC4_OFFLINE:
836 bfa_sm_set_state(rport, bfa_fcs_rport_sm_hcb_logorcv);
837 bfa_rport_offline(rport->bfa_rport);
838 break;
839
840 case RPSM_EVENT_DELETE:
841 bfa_sm_set_state(rport, bfa_fcs_rport_sm_fc4_logosend);
842 break;
843
844 case RPSM_EVENT_LOGO_RCVD:
845 case RPSM_EVENT_ADDRESS_CHANGE:
846 break;
847
848 default:
e641de37 849 bfa_sm_fault(rport->fcs, event);
7725ccfd
JH		 850 }
851}
852
853/**
854 * LOGO needs to be sent to rport. Awaiting FC-4 offline completion
855 * callback.
856 */
857static void
858bfa_fcs_rport_sm_fc4_logosend(struct bfa_fcs_rport_s *rport,
859 enum rport_event event)
860{
861 bfa_trc(rport->fcs, rport->pwwn);
862 bfa_trc(rport->fcs, rport->pid);
863 bfa_trc(rport->fcs, event);
864
865 switch (event) {
866 case RPSM_EVENT_FC4_OFFLINE:
867 bfa_sm_set_state(rport, bfa_fcs_rport_sm_hcb_logosend);
868 bfa_rport_offline(rport->bfa_rport);
869 break;
870
871 default:
e641de37 872 bfa_sm_fault(rport->fcs, event);
7725ccfd
JH		 873 }
874}
875
876/**
877 * Rport is going offline. Awaiting FC-4 offline completion callback.
878 */
879static void
880bfa_fcs_rport_sm_fc4_offline(struct bfa_fcs_rport_s *rport,
881 enum rport_event event)
882{
883 bfa_trc(rport->fcs, rport->pwwn);
884 bfa_trc(rport->fcs, rport->pid);
885 bfa_trc(rport->fcs, event);
886
887 switch (event) {
888 case RPSM_EVENT_FC4_OFFLINE:
889 bfa_sm_set_state(rport, bfa_fcs_rport_sm_hcb_offline);
890 bfa_rport_offline(rport->bfa_rport);
891 break;
892
893 case RPSM_EVENT_SCN:
894 case RPSM_EVENT_LOGO_IMP:
895 case RPSM_EVENT_LOGO_RCVD:
896 case RPSM_EVENT_ADDRESS_CHANGE:
897 /**
898 * rport is already going offline.
899 * SCN - ignore and wait till transitioning to offline state
900 */
901 break;
902
903 case RPSM_EVENT_DELETE:
904 bfa_sm_set_state(rport, bfa_fcs_rport_sm_fc4_logosend);
905 break;
906
907 default:
e641de37 908 bfa_sm_fault(rport->fcs, event);
7725ccfd
JH		 909 }
910}
911
912/**
913 * Rport is offline. FC-4s are offline. Awaiting BFA rport offline
914 * callback.
915 */
916static void
917bfa_fcs_rport_sm_hcb_offline(struct bfa_fcs_rport_s *rport,
918 enum rport_event event)
919{
920 bfa_trc(rport->fcs, rport->pwwn);
921 bfa_trc(rport->fcs, rport->pid);
922 bfa_trc(rport->fcs, event);
923
924 switch (event) {
925 case RPSM_EVENT_HCB_OFFLINE:
926 case RPSM_EVENT_ADDRESS_CHANGE:
927 if (bfa_fcs_port_is_online(rport->port)) {
72041ed8
KG		 928 if (bfa_fcs_fabric_is_switched(rport->port->fabric)) {
929 bfa_sm_set_state(rport,
930 bfa_fcs_rport_sm_nsdisc_sending);
931 rport->ns_retries = 0;
932 bfa_fcs_rport_send_gidpn(rport, NULL);
933 } else {
934 bfa_sm_set_state(rport,
935 bfa_fcs_rport_sm_plogi_sending);
936 rport->plogi_retries = 0;
937 bfa_fcs_rport_send_plogi(rport, NULL);
938 }
7725ccfd
JH		 939 } else {
940 rport->pid = 0;
941 bfa_sm_set_state(rport, bfa_fcs_rport_sm_offline);
942 bfa_timer_start(rport->fcs->bfa, &rport->timer,
943 bfa_fcs_rport_timeout, rport,
944 bfa_fcs_rport_del_timeout);
945 }
946 break;
947
948 case RPSM_EVENT_DELETE:
949 bfa_sm_set_state(rport, bfa_fcs_rport_sm_uninit);
950 bfa_fcs_rport_free(rport);
951 break;
952
953 case RPSM_EVENT_SCN:
954 case RPSM_EVENT_LOGO_RCVD:
955 /**
956 * Ignore, already offline.
957 */
958 break;
959
960 default:
e641de37 961 bfa_sm_fault(rport->fcs, event);
7725ccfd
JH		 962 }
963}
964
965/**
966 * Rport is offline. FC-4s are offline. Awaiting BFA rport offline
967 * callback to send LOGO accept.
968 */
969static void
970bfa_fcs_rport_sm_hcb_logorcv(struct bfa_fcs_rport_s *rport,
971 enum rport_event event)
972{
973 bfa_trc(rport->fcs, rport->pwwn);
974 bfa_trc(rport->fcs, rport->pid);
975 bfa_trc(rport->fcs, event);
976
977 switch (event) {
978 case RPSM_EVENT_HCB_OFFLINE:
979 case RPSM_EVENT_ADDRESS_CHANGE:
980 if (rport->pid)
981 bfa_fcs_rport_send_logo_acc(rport);
982 /*
983 * If the lport is online and if the rport is not a well known
984 * address port, we try to re-discover the r-port.
985 */
986 if (bfa_fcs_port_is_online(rport->port)
987 && (!BFA_FCS_PID_IS_WKA(rport->pid))) {
988 bfa_sm_set_state(rport,
989 bfa_fcs_rport_sm_nsdisc_sending);
990 rport->ns_retries = 0;
991 bfa_fcs_rport_send_gidpn(rport, NULL);
992 } else {
993 /*
994 * if it is not a well known address, reset the pid to
995 *
996 */
997 if (!BFA_FCS_PID_IS_WKA(rport->pid))
998 rport->pid = 0;
999 bfa_sm_set_state(rport, bfa_fcs_rport_sm_offline);
1000 bfa_timer_start(rport->fcs->bfa, &rport->timer,
1001 bfa_fcs_rport_timeout, rport,
1002 bfa_fcs_rport_del_timeout);
1003 }
1004 break;
1005
1006 case RPSM_EVENT_DELETE:
1007 bfa_sm_set_state(rport, bfa_fcs_rport_sm_hcb_logosend);
1008 break;
1009
1010 case RPSM_EVENT_LOGO_IMP:
1011 bfa_sm_set_state(rport, bfa_fcs_rport_sm_hcb_offline);
1012 break;
1013
1014 case RPSM_EVENT_LOGO_RCVD:
1015 /**
1016 * Ignore - already processing a LOGO.
1017 */
1018 break;
1019
1020 default:
e641de37 1021 bfa_sm_fault(rport->fcs, event);
7725ccfd
JH		 1022 }
1023}
1024
1025/**
1026 * Rport is being deleted. FC-4s are offline. Awaiting BFA rport offline
1027 * callback to send LOGO.
1028 */
1029static void
1030bfa_fcs_rport_sm_hcb_logosend(struct bfa_fcs_rport_s *rport,
1031 enum rport_event event)
1032{
1033 bfa_trc(rport->fcs, rport->pwwn);
1034 bfa_trc(rport->fcs, rport->pid);
1035 bfa_trc(rport->fcs, event);
1036
1037 switch (event) {
1038 case RPSM_EVENT_HCB_OFFLINE:
1039 bfa_sm_set_state(rport, bfa_fcs_rport_sm_logo_sending);
1040 bfa_fcs_rport_send_logo(rport, NULL);
1041 break;
1042
1043 case RPSM_EVENT_LOGO_RCVD:
1044 case RPSM_EVENT_ADDRESS_CHANGE:
1045 break;
1046
1047 default:
e641de37 1048 bfa_sm_fault(rport->fcs, event);
7725ccfd
JH		 1049 }
1050}
1051
1052/**
1053 * Rport is being deleted. FC-4s are offline. LOGO is being sent.
1054 */
1055static void
1056bfa_fcs_rport_sm_logo_sending(struct bfa_fcs_rport_s *rport,
1057 enum rport_event event)
1058{
1059 bfa_trc(rport->fcs, rport->pwwn);
1060 bfa_trc(rport->fcs, rport->pid);
1061 bfa_trc(rport->fcs, event);
1062
1063 switch (event) {
1064 case RPSM_EVENT_FCXP_SENT:
1065 /*
1066 * Once LOGO is sent, we donot wait for the response
1067 */
1068 bfa_sm_set_state(rport, bfa_fcs_rport_sm_uninit);
1069 bfa_fcs_rport_free(rport);
1070 break;
1071
1072 case RPSM_EVENT_SCN:
1073 case RPSM_EVENT_ADDRESS_CHANGE:
1074 break;
1075
1076 case RPSM_EVENT_LOGO_RCVD:
1077 bfa_sm_set_state(rport, bfa_fcs_rport_sm_uninit);
1078 bfa_fcxp_walloc_cancel(rport->fcs->bfa, &rport->fcxp_wqe);
1079 bfa_fcs_rport_free(rport);
1080 break;
1081
1082 default:
e641de37 1083 bfa_sm_fault(rport->fcs, event);
7725ccfd
JH		 1084 }
1085}
1086
1087/**
1088 * Rport is offline. FC-4s are offline. BFA rport is offline.
1089 * Timer active to delete stale rport.
1090 */
1091static void
1092bfa_fcs_rport_sm_offline(struct bfa_fcs_rport_s *rport, enum rport_event event)
1093{
1094 bfa_trc(rport->fcs, rport->pwwn);
1095 bfa_trc(rport->fcs, rport->pid);
1096 bfa_trc(rport->fcs, event);
1097
1098 switch (event) {
1099 case RPSM_EVENT_TIMEOUT:
1100 bfa_sm_set_state(rport, bfa_fcs_rport_sm_uninit);
1101 bfa_fcs_rport_free(rport);
1102 break;
1103
1104 case RPSM_EVENT_SCN:
1105 case RPSM_EVENT_ADDRESS_CHANGE:
1106 bfa_sm_set_state(rport, bfa_fcs_rport_sm_nsdisc_sending);
1107 bfa_timer_stop(&rport->timer);
1108 rport->ns_retries = 0;
1109 bfa_fcs_rport_send_gidpn(rport, NULL);
1110 break;
1111
1112 case RPSM_EVENT_DELETE:
1113 bfa_sm_set_state(rport, bfa_fcs_rport_sm_uninit);
1114 bfa_timer_stop(&rport->timer);
1115 bfa_fcs_rport_free(rport);
1116 break;
1117
1118 case RPSM_EVENT_PLOGI_RCVD:
1119 bfa_sm_set_state(rport, bfa_fcs_rport_sm_plogiacc_sending);
1120 bfa_timer_stop(&rport->timer);
1121 bfa_fcs_rport_send_plogiacc(rport, NULL);
1122 break;
1123
1124 case RPSM_EVENT_LOGO_RCVD:
1125 case RPSM_EVENT_LOGO_IMP:
1126 break;
1127
1128 case RPSM_EVENT_PLOGI_COMP:
1129 bfa_sm_set_state(rport, bfa_fcs_rport_sm_hal_online);
1130 bfa_timer_stop(&rport->timer);
1131 bfa_fcs_rport_hal_online(rport);
1132 break;
1133
1134 case RPSM_EVENT_PLOGI_SEND:
1135 bfa_timer_stop(&rport->timer);
1136 bfa_sm_set_state(rport, bfa_fcs_rport_sm_plogi_sending);
1137 rport->plogi_retries = 0;
1138 bfa_fcs_rport_send_plogi(rport, NULL);
1139 break;
1140
1141 default:
e641de37 1142 bfa_sm_fault(rport->fcs, event);
7725ccfd
JH		 1143 }
1144}
1145
1146/**
1147 * Rport address has changed. Nameserver discovery request is being sent.
1148 */
1149static void
1150bfa_fcs_rport_sm_nsdisc_sending(struct bfa_fcs_rport_s *rport,
1151 enum rport_event event)
1152{
1153 bfa_trc(rport->fcs, rport->pwwn);
1154 bfa_trc(rport->fcs, rport->pid);
1155 bfa_trc(rport->fcs, event);
1156
1157 switch (event) {
1158 case RPSM_EVENT_FCXP_SENT:
1159 bfa_sm_set_state(rport, bfa_fcs_rport_sm_nsdisc_sent);
1160 break;
1161
1162 case RPSM_EVENT_DELETE:
1163 bfa_sm_set_state(rport, bfa_fcs_rport_sm_uninit);
1164 bfa_fcxp_walloc_cancel(rport->fcs->bfa, &rport->fcxp_wqe);
1165 bfa_fcs_rport_free(rport);
1166 break;
1167
1168 case RPSM_EVENT_PLOGI_RCVD:
1169 bfa_sm_set_state(rport, bfa_fcs_rport_sm_plogiacc_sending);
1170 bfa_fcxp_walloc_cancel(rport->fcs->bfa, &rport->fcxp_wqe);
1171 bfa_fcs_rport_send_plogiacc(rport, NULL);
1172 break;
1173
1174 case RPSM_EVENT_SCN:
1175 case RPSM_EVENT_LOGO_RCVD:
1176 case RPSM_EVENT_PLOGI_SEND:
1177 break;
1178
1179 case RPSM_EVENT_ADDRESS_CHANGE:
1180 rport->ns_retries = 0; /* reset the retry count */
1181 break;
1182
1183 case RPSM_EVENT_LOGO_IMP:
1184 bfa_sm_set_state(rport, bfa_fcs_rport_sm_offline);
1185 bfa_fcxp_walloc_cancel(rport->fcs->bfa, &rport->fcxp_wqe);
1186 bfa_timer_start(rport->fcs->bfa, &rport->timer,
1187 bfa_fcs_rport_timeout, rport,
1188 bfa_fcs_rport_del_timeout);
1189 break;
1190
1191 case RPSM_EVENT_PLOGI_COMP:
1192 bfa_sm_set_state(rport, bfa_fcs_rport_sm_hal_online);
1193 bfa_fcxp_walloc_cancel(rport->fcs->bfa, &rport->fcxp_wqe);
1194 bfa_fcs_rport_hal_online(rport);
1195 break;
1196
1197 default:
e641de37 1198 bfa_sm_fault(rport->fcs, event);
7725ccfd
JH		 1199 }
1200}
1201
1202/**
1203 * Nameserver discovery failed. Waiting for timeout to retry.
1204 */
1205static void
1206bfa_fcs_rport_sm_nsdisc_retry(struct bfa_fcs_rport_s *rport,
1207 enum rport_event event)
1208{
1209 bfa_trc(rport->fcs, rport->pwwn);
1210 bfa_trc(rport->fcs, rport->pid);
1211 bfa_trc(rport->fcs, event);
1212
1213 switch (event) {
1214 case RPSM_EVENT_TIMEOUT:
1215 bfa_sm_set_state(rport, bfa_fcs_rport_sm_nsdisc_sending);
1216 bfa_fcs_rport_send_gidpn(rport, NULL);
1217 break;
1218
1219 case RPSM_EVENT_SCN:
1220 case RPSM_EVENT_ADDRESS_CHANGE:
1221 bfa_sm_set_state(rport, bfa_fcs_rport_sm_nsdisc_sending);
1222 bfa_timer_stop(&rport->timer);
1223 rport->ns_retries = 0;
1224 bfa_fcs_rport_send_gidpn(rport, NULL);
1225 break;
1226
1227 case RPSM_EVENT_DELETE:
1228 bfa_sm_set_state(rport, bfa_fcs_rport_sm_uninit);
1229 bfa_timer_stop(&rport->timer);
1230 bfa_fcs_rport_free(rport);
1231 break;
1232
1233 case RPSM_EVENT_PLOGI_RCVD:
1234 bfa_sm_set_state(rport, bfa_fcs_rport_sm_plogiacc_sending);
1235 bfa_timer_stop(&rport->timer);
1236 bfa_fcs_rport_send_plogiacc(rport, NULL);
1237 break;
1238
1239 case RPSM_EVENT_LOGO_IMP:
1240 rport->pid = 0;
1241 bfa_sm_set_state(rport, bfa_fcs_rport_sm_offline);
1242 bfa_timer_stop(&rport->timer);
1243 bfa_timer_start(rport->fcs->bfa, &rport->timer,
1244 bfa_fcs_rport_timeout, rport,
1245 bfa_fcs_rport_del_timeout);
1246 break;
1247
1248 case RPSM_EVENT_LOGO_RCVD:
1249 bfa_fcs_rport_send_logo_acc(rport);
1250 break;
1251
1252 case RPSM_EVENT_PLOGI_COMP:
1253 bfa_sm_set_state(rport, bfa_fcs_rport_sm_hal_online);
1254 bfa_timer_stop(&rport->timer);
1255 bfa_fcs_rport_hal_online(rport);
1256 break;
1257
1258 default:
e641de37 1259 bfa_sm_fault(rport->fcs, event);
7725ccfd
JH		 1260 }
1261}
1262
1263/**
1264 * Rport address has changed. Nameserver discovery request is sent.
1265 */
1266static void
1267bfa_fcs_rport_sm_nsdisc_sent(struct bfa_fcs_rport_s *rport,
1268 enum rport_event event)
1269{
1270 bfa_trc(rport->fcs, rport->pwwn);
1271 bfa_trc(rport->fcs, rport->pid);
1272 bfa_trc(rport->fcs, event);
1273
1274 switch (event) {
1275 case RPSM_EVENT_ACCEPTED:
1276 case RPSM_EVENT_ADDRESS_CHANGE:
1277 if (rport->pid) {
1278 bfa_sm_set_state(rport, bfa_fcs_rport_sm_plogi_sending);
1279 bfa_fcs_rport_send_plogi(rport, NULL);
1280 } else {
1281 bfa_sm_set_state(rport,
1282 bfa_fcs_rport_sm_nsdisc_sending);
1283 rport->ns_retries = 0;
1284 bfa_fcs_rport_send_gidpn(rport, NULL);
1285 }
1286 break;
1287
1288 case RPSM_EVENT_FAILED:
1289 rport->ns_retries++;
1290 if (rport->ns_retries < BFA_FCS_RPORT_MAX_RETRIES) {
1291 bfa_sm_set_state(rport,
1292 bfa_fcs_rport_sm_nsdisc_sending);
1293 bfa_fcs_rport_send_gidpn(rport, NULL);
1294 } else {
1295 rport->pid = 0;
1296 bfa_sm_set_state(rport, bfa_fcs_rport_sm_offline);
1297 bfa_timer_start(rport->fcs->bfa, &rport->timer,
1298 bfa_fcs_rport_timeout, rport,
1299 bfa_fcs_rport_del_timeout);
1300 };
1301 break;
1302
1303 case RPSM_EVENT_DELETE:
1304 bfa_sm_set_state(rport, bfa_fcs_rport_sm_uninit);
1305 bfa_fcxp_discard(rport->fcxp);
1306 bfa_fcs_rport_free(rport);
1307 break;
1308
1309 case RPSM_EVENT_PLOGI_RCVD:
1310 bfa_sm_set_state(rport, bfa_fcs_rport_sm_plogiacc_sending);
1311 bfa_fcxp_discard(rport->fcxp);
1312 bfa_fcs_rport_send_plogiacc(rport, NULL);
1313 break;
1314
1315 case RPSM_EVENT_LOGO_IMP:
1316 rport->pid = 0;
1317 bfa_sm_set_state(rport, bfa_fcs_rport_sm_offline);
1318 bfa_fcxp_discard(rport->fcxp);
1319 bfa_timer_start(rport->fcs->bfa, &rport->timer,
1320 bfa_fcs_rport_timeout, rport,
1321 bfa_fcs_rport_del_timeout);
1322 break;
1323
1324 case RPSM_EVENT_SCN:
1325 /**
1326 * ignore, wait for NS query response
1327 */
1328 break;
1329
1330 case RPSM_EVENT_LOGO_RCVD:
1331 /**
1332 * Not logged-in yet. Accept LOGO.
1333 */
1334 bfa_fcs_rport_send_logo_acc(rport);
1335 break;
1336
1337 case RPSM_EVENT_PLOGI_COMP:
1338 bfa_sm_set_state(rport, bfa_fcs_rport_sm_hal_online);
1339 bfa_fcxp_discard(rport->fcxp);
1340 bfa_fcs_rport_hal_online(rport);
1341 break;
1342
1343 default:
e641de37 1344 bfa_sm_fault(rport->fcs, event);
7725ccfd
JH		 1345 }
1346}
1347
1348
1349
1350/**
1351 * fcs_rport_private FCS RPORT provate functions
1352 */
1353
1354static void
1355bfa_fcs_rport_send_plogi(void *rport_cbarg, struct bfa_fcxp_s *fcxp_alloced)
1356{
1357 struct bfa_fcs_rport_s *rport = rport_cbarg;
1358 struct bfa_fcs_port_s *port = rport->port;
1359 struct fchs_s fchs;
1360 int len;
1361 struct bfa_fcxp_s *fcxp;
1362
1363 bfa_trc(rport->fcs, rport->pwwn);
1364
1365 fcxp = fcxp_alloced ? fcxp_alloced : bfa_fcs_fcxp_alloc(port->fcs);
1366 if (!fcxp) {
1367 bfa_fcxp_alloc_wait(port->fcs->bfa, &rport->fcxp_wqe,
1368 bfa_fcs_rport_send_plogi, rport);
1369 return;
1370 }
1371 rport->fcxp = fcxp;
1372
1373 len = fc_plogi_build(&fchs, bfa_fcxp_get_reqbuf(fcxp), rport->pid,
1374 bfa_fcs_port_get_fcid(port), 0,
1375 port->port_cfg.pwwn, port->port_cfg.nwwn,
1376 bfa_pport_get_maxfrsize(port->fcs->bfa));
1377
1378 bfa_fcxp_send(fcxp, NULL, port->fabric->vf_id, port->lp_tag, BFA_FALSE,
1379 FC_CLASS_3, len, &fchs, bfa_fcs_rport_plogi_response,
1380 (void *)rport, FC_MAX_PDUSZ, FC_RA_TOV);
1381
1382 rport->stats.plogis++;
1383 bfa_sm_send_event(rport, RPSM_EVENT_FCXP_SENT);
1384}
1385
1386static void
1387bfa_fcs_rport_plogi_response(void *fcsarg, struct bfa_fcxp_s *fcxp, void *cbarg,
1388 bfa_status_t req_status, u32 rsp_len,
1389 u32 resid_len, struct fchs_s *rsp_fchs)
1390{
1391 struct bfa_fcs_rport_s *rport = (struct bfa_fcs_rport_s *)cbarg;
1392 struct fc_logi_s *plogi_rsp;
1393 struct fc_ls_rjt_s *ls_rjt;
1394 struct bfa_fcs_rport_s *twin;
1395 struct list_head *qe;
1396
1397 bfa_trc(rport->fcs, rport->pwwn);
1398
1399 /*
1400 * Sanity Checks
1401 */
1402 if (req_status != BFA_STATUS_OK) {
1403 bfa_trc(rport->fcs, req_status);
1404 rport->stats.plogi_failed++;
1405 bfa_sm_send_event(rport, RPSM_EVENT_FAILED);
1406 return;
1407 }
1408
1409 plogi_rsp = (struct fc_logi_s *) BFA_FCXP_RSP_PLD(fcxp);
1410
1411 /**
1412 * Check for failure first.
1413 */
1414 if (plogi_rsp->els_cmd.els_code != FC_ELS_ACC) {
1415 ls_rjt = (struct fc_ls_rjt_s *) BFA_FCXP_RSP_PLD(fcxp);
1416
1417 bfa_trc(rport->fcs, ls_rjt->reason_code);
1418 bfa_trc(rport->fcs, ls_rjt->reason_code_expl);
1419
1420 rport->stats.plogi_rejects++;
1421 bfa_sm_send_event(rport, RPSM_EVENT_FAILED);
1422 return;
1423 }
1424
1425 /**
1426 * PLOGI is complete. Make sure this device is not one of the known
1427 * device with a new FC port address.
1428 */
1429 list_for_each(qe, &rport->port->rport_q) {
1430 twin = (struct bfa_fcs_rport_s *)qe;
1431 if (twin == rport)
1432 continue;
1433 if (!rport->pwwn && (plogi_rsp->port_name == twin->pwwn)) {
1434 bfa_trc(rport->fcs, twin->pid);
1435 bfa_trc(rport->fcs, rport->pid);
1436
1437 /*
1438 * Update plogi stats in twin
1439 */
1440 twin->stats.plogis += rport->stats.plogis;
1441 twin->stats.plogi_rejects += rport->stats.plogi_rejects;
1442 twin->stats.plogi_timeouts +=
1443 rport->stats.plogi_timeouts;
1444 twin->stats.plogi_failed += rport->stats.plogi_failed;
1445 twin->stats.plogi_rcvd += rport->stats.plogi_rcvd;
1446 twin->stats.plogi_accs++;
1447
1448 bfa_fcs_rport_delete(rport);
1449
1450 bfa_fcs_rport_update(twin, plogi_rsp);
1451 twin->pid = rsp_fchs->s_id;
1452 bfa_sm_send_event(twin, RPSM_EVENT_PLOGI_COMP);
1453 return;
1454 }
1455 }
1456
1457 /**
1458 * Normal login path -- no evil twins.
1459 */
1460 rport->stats.plogi_accs++;
1461 bfa_fcs_rport_update(rport, plogi_rsp);
1462 bfa_sm_send_event(rport, RPSM_EVENT_ACCEPTED);
1463}
1464
1465static void
1466bfa_fcs_rport_send_plogiacc(void *rport_cbarg, struct bfa_fcxp_s *fcxp_alloced)
1467{
1468 struct bfa_fcs_rport_s *rport = rport_cbarg;
1469 struct bfa_fcs_port_s *port = rport->port;
1470 struct fchs_s fchs;
1471 int len;
1472 struct bfa_fcxp_s *fcxp;
1473
1474 bfa_trc(rport->fcs, rport->pwwn);
1475 bfa_trc(rport->fcs, rport->reply_oxid);
1476
1477 fcxp = fcxp_alloced ? fcxp_alloced : bfa_fcs_fcxp_alloc(port->fcs);
1478 if (!fcxp) {
1479 bfa_fcxp_alloc_wait(port->fcs->bfa, &rport->fcxp_wqe,
1480 bfa_fcs_rport_send_plogiacc, rport);
1481 return;
1482 }
1483 rport->fcxp = fcxp;
1484
1485 len = fc_plogi_acc_build(&fchs, bfa_fcxp_get_reqbuf(fcxp), rport->pid,
1486 bfa_fcs_port_get_fcid(port), rport->reply_oxid,
1487 port->port_cfg.pwwn, port->port_cfg.nwwn,
1488 bfa_pport_get_maxfrsize(port->fcs->bfa));
1489
1490 bfa_fcxp_send(fcxp, NULL, port->fabric->vf_id, port->lp_tag, BFA_FALSE,
1491 FC_CLASS_3, len, &fchs, NULL, NULL, FC_MAX_PDUSZ, 0);
1492
1493 bfa_sm_send_event(rport, RPSM_EVENT_FCXP_SENT);
1494}
1495
1496static void
1497bfa_fcs_rport_send_adisc(void *rport_cbarg, struct bfa_fcxp_s *fcxp_alloced)
1498{
1499 struct bfa_fcs_rport_s *rport = rport_cbarg;
1500 struct bfa_fcs_port_s *port = rport->port;
1501 struct fchs_s fchs;
1502 int len;
1503 struct bfa_fcxp_s *fcxp;
1504
1505 bfa_trc(rport->fcs, rport->pwwn);
1506
1507 fcxp = fcxp_alloced ? fcxp_alloced : bfa_fcs_fcxp_alloc(port->fcs);
1508 if (!fcxp) {
1509 bfa_fcxp_alloc_wait(port->fcs->bfa, &rport->fcxp_wqe,
1510 bfa_fcs_rport_send_adisc, rport);
1511 return;
1512 }
1513 rport->fcxp = fcxp;
1514
1515 len = fc_adisc_build(&fchs, bfa_fcxp_get_reqbuf(fcxp), rport->pid,
1516 bfa_fcs_port_get_fcid(port), 0,
1517 port->port_cfg.pwwn, port->port_cfg.nwwn);
1518
1519 bfa_fcxp_send(fcxp, NULL, port->fabric->vf_id, port->lp_tag, BFA_FALSE,
1520 FC_CLASS_3, len, &fchs, bfa_fcs_rport_adisc_response,
1521 rport, FC_MAX_PDUSZ, FC_RA_TOV);
1522
1523 rport->stats.adisc_sent++;
1524 bfa_sm_send_event(rport, RPSM_EVENT_FCXP_SENT);
1525}
1526
1527static void
1528bfa_fcs_rport_adisc_response(void *fcsarg, struct bfa_fcxp_s *fcxp, void *cbarg,
1529 bfa_status_t req_status, u32 rsp_len,
1530 u32 resid_len, struct fchs_s *rsp_fchs)
1531{
1532 struct bfa_fcs_rport_s *rport = (struct bfa_fcs_rport_s *)cbarg;
1533 void *pld = bfa_fcxp_get_rspbuf(fcxp);
1534 struct fc_ls_rjt_s *ls_rjt;
1535
1536 if (req_status != BFA_STATUS_OK) {
1537 bfa_trc(rport->fcs, req_status);
1538 rport->stats.adisc_failed++;
1539 bfa_sm_send_event(rport, RPSM_EVENT_FAILED);
1540 return;
1541 }
1542
1543 if (fc_adisc_rsp_parse((struct fc_adisc_s *)pld, rsp_len, rport->pwwn,
1544 rport->nwwn) == FC_PARSE_OK) {
1545 rport->stats.adisc_accs++;
1546 bfa_sm_send_event(rport, RPSM_EVENT_ACCEPTED);
1547 return;
1548 }
1549
1550 rport->stats.adisc_rejects++;
1551 ls_rjt = pld;
1552 bfa_trc(rport->fcs, ls_rjt->els_cmd.els_code);
1553 bfa_trc(rport->fcs, ls_rjt->reason_code);
1554 bfa_trc(rport->fcs, ls_rjt->reason_code_expl);
1555 bfa_sm_send_event(rport, RPSM_EVENT_FAILED);
1556}
1557
1558static void
1559bfa_fcs_rport_send_gidpn(void *rport_cbarg, struct bfa_fcxp_s *fcxp_alloced)
1560{
1561 struct bfa_fcs_rport_s *rport = rport_cbarg;
1562 struct bfa_fcs_port_s *port = rport->port;
1563 struct fchs_s fchs;
1564 struct bfa_fcxp_s *fcxp;
1565 int len;
1566
1567 bfa_trc(rport->fcs, rport->pid);
1568
1569 fcxp = fcxp_alloced ? fcxp_alloced : bfa_fcs_fcxp_alloc(port->fcs);
1570 if (!fcxp) {
1571 bfa_fcxp_alloc_wait(port->fcs->bfa, &rport->fcxp_wqe,
1572 bfa_fcs_rport_send_gidpn, rport);
1573 return;
1574 }
1575 rport->fcxp = fcxp;
1576
1577 len = fc_gidpn_build(&fchs, bfa_fcxp_get_reqbuf(fcxp),
1578 bfa_fcs_port_get_fcid(port), 0, rport->pwwn);
1579
1580 bfa_fcxp_send(fcxp, NULL, port->fabric->vf_id, port->lp_tag, BFA_FALSE,
1581 FC_CLASS_3, len, &fchs, bfa_fcs_rport_gidpn_response,
1582 (void *)rport, FC_MAX_PDUSZ, FC_RA_TOV);
1583
1584 bfa_sm_send_event(rport, RPSM_EVENT_FCXP_SENT);
1585}
1586
1587static void
1588bfa_fcs_rport_gidpn_response(void *fcsarg, struct bfa_fcxp_s *fcxp, void *cbarg,
1589 bfa_status_t req_status, u32 rsp_len,
1590 u32 resid_len, struct fchs_s *rsp_fchs)
1591{
1592 struct bfa_fcs_rport_s *rport = (struct bfa_fcs_rport_s *)cbarg;
1593 struct bfa_fcs_rport_s *twin;
1594 struct list_head *qe;
1595 struct ct_hdr_s *cthdr;
1596 struct fcgs_gidpn_resp_s *gidpn_rsp;
1597
1598 bfa_trc(rport->fcs, rport->pwwn);
1599
1600 cthdr = (struct ct_hdr_s *) BFA_FCXP_RSP_PLD(fcxp);
1601 cthdr->cmd_rsp_code = bfa_os_ntohs(cthdr->cmd_rsp_code);
1602
1603 if (cthdr->cmd_rsp_code == CT_RSP_ACCEPT) {
1604 /*
1605 * Check if the pid is the same as before.
1606 */
1607 gidpn_rsp = (struct fcgs_gidpn_resp_s *) (cthdr + 1);
1608
1609 if (gidpn_rsp->dap == rport->pid) {
1610 /*
1611 * Device is online
1612 */
1613 bfa_sm_send_event(rport, RPSM_EVENT_ACCEPTED);
1614 } else {
1615 /*
1616 * Device's PID has changed. We need to cleanup and
1617 * re-login. If there is another device with the the
1618 * newly discovered pid, send an scn notice so that its
1619 * new pid can be discovered.
1620 */
1621 list_for_each(qe, &rport->port->rport_q) {
1622 twin = (struct bfa_fcs_rport_s *)qe;
1623 if (twin == rport)
1624 continue;
1625 if (gidpn_rsp->dap == twin->pid) {
1626 bfa_trc(rport->fcs, twin->pid);
1627 bfa_trc(rport->fcs, rport->pid);
1628
1629 twin->pid = 0;
1630 bfa_sm_send_event(twin,
1631 RPSM_EVENT_ADDRESS_CHANGE);
1632 }
1633 }
1634 rport->pid = gidpn_rsp->dap;
1635 bfa_sm_send_event(rport, RPSM_EVENT_ADDRESS_CHANGE);
1636 }
1637 return;
1638 }
1639
1640 /*
1641 * Reject Response
1642 */
1643 switch (cthdr->reason_code) {
1644 case CT_RSN_LOGICAL_BUSY:
1645 /*
1646 * Need to retry
1647 */
1648 bfa_sm_send_event(rport, RPSM_EVENT_TIMEOUT);
1649 break;
1650
1651 case CT_RSN_UNABLE_TO_PERF:
1652 /*
1653 * device doesn't exist : Start timer to cleanup this later.
1654 */
1655 bfa_sm_send_event(rport, RPSM_EVENT_FAILED);
1656 break;
1657
1658 default:
1659 bfa_sm_send_event(rport, RPSM_EVENT_FAILED);
1660 break;
1661 }
1662}
1663
1664/**
1665 * Called to send a logout to the rport.
1666 */
1667static void
1668bfa_fcs_rport_send_logo(void *rport_cbarg, struct bfa_fcxp_s *fcxp_alloced)
1669{
1670 struct bfa_fcs_rport_s *rport = rport_cbarg;
1671 struct bfa_fcs_port_s *port;
1672 struct fchs_s fchs;
1673 struct bfa_fcxp_s *fcxp;
1674 u16 len;
1675
1676 bfa_trc(rport->fcs, rport->pid);
1677
1678 port = rport->port;
1679
1680 fcxp = fcxp_alloced ? fcxp_alloced : bfa_fcs_fcxp_alloc(port->fcs);
1681 if (!fcxp) {
1682 bfa_fcxp_alloc_wait(port->fcs->bfa, &rport->fcxp_wqe,
1683 bfa_fcs_rport_send_logo, rport);
1684 return;
1685 }
1686 rport->fcxp = fcxp;
1687
1688 len = fc_logo_build(&fchs, bfa_fcxp_get_reqbuf(fcxp), rport->pid,
1689 bfa_fcs_port_get_fcid(port), 0,
1690 bfa_fcs_port_get_pwwn(port));
1691
1692 bfa_fcxp_send(fcxp, NULL, port->fabric->vf_id, port->lp_tag, BFA_FALSE,
1693 FC_CLASS_3, len, &fchs, NULL, rport, FC_MAX_PDUSZ,
1694 FC_ED_TOV);
1695
1696 rport->stats.logos++;
1697 bfa_fcxp_discard(rport->fcxp);
1698 bfa_sm_send_event(rport, RPSM_EVENT_FCXP_SENT);
1699}
1700
1701/**
1702 * Send ACC for a LOGO received.
1703 */
1704static void
1705bfa_fcs_rport_send_logo_acc(void *rport_cbarg)
1706{
1707 struct bfa_fcs_rport_s *rport = rport_cbarg;
1708 struct bfa_fcs_port_s *port;
1709 struct fchs_s fchs;
1710 struct bfa_fcxp_s *fcxp;
1711 u16 len;
1712
1713 bfa_trc(rport->fcs, rport->pid);
1714
1715 port = rport->port;
1716
1717 fcxp = bfa_fcs_fcxp_alloc(port->fcs);
1718 if (!fcxp)
1719 return;
1720
1721 rport->stats.logo_rcvd++;
1722 len = fc_logo_acc_build(&fchs, bfa_fcxp_get_reqbuf(fcxp), rport->pid,
1723 bfa_fcs_port_get_fcid(port), rport->reply_oxid);
1724
1725 bfa_fcxp_send(fcxp, NULL, port->fabric->vf_id, port->lp_tag, BFA_FALSE,
1726 FC_CLASS_3, len, &fchs, NULL, NULL, FC_MAX_PDUSZ, 0);
1727}
1728
1729/**
1730 * This routine will be called by bfa_timer on timer timeouts.
1731 *
1732 * param[in] rport - pointer to bfa_fcs_port_ns_t.
1733 * param[out] rport_status - pointer to return vport status in
1734 *
1735 * return
1736 * void
1737 *
1738* Special Considerations:
1739 *
1740 * note
1741 */
1742static void
1743bfa_fcs_rport_timeout(void *arg)
1744{
1745 struct bfa_fcs_rport_s *rport = (struct bfa_fcs_rport_s *)arg;
1746
1747 rport->stats.plogi_timeouts++;
1748 bfa_sm_send_event(rport, RPSM_EVENT_TIMEOUT);
1749}
1750
1751static void
1752bfa_fcs_rport_process_prli(struct bfa_fcs_rport_s *rport,
1753 struct fchs_s *rx_fchs, u16 len)
1754{
1755 struct bfa_fcxp_s *fcxp;
1756 struct fchs_s fchs;
1757 struct bfa_fcs_port_s *port = rport->port;
1758 struct fc_prli_s *prli;
1759
1760 bfa_trc(port->fcs, rx_fchs->s_id);
1761 bfa_trc(port->fcs, rx_fchs->d_id);
1762
1763 rport->stats.prli_rcvd++;
1764
1765 if (BFA_FCS_VPORT_IS_TARGET_MODE(port)) {
1766 /*
1767 * Target Mode : Let the fcptm handle it
1768 */
1769 bfa_fcs_tin_rx_prli(rport->tin, rx_fchs, len);
1770 return;
1771 }
1772
1773 /*
1774 * We are either in Initiator or ipfc Mode
1775 */
1776 prli = (struct fc_prli_s *) (rx_fchs + 1);
1777
1778 if (prli->parampage.servparams.initiator) {
1779 bfa_trc(rport->fcs, prli->parampage.type);
1780 rport->scsi_function = BFA_RPORT_INITIATOR;
1781 bfa_fcs_itnim_is_initiator(rport->itnim);
1782 } else {
1783 /*
1784 * @todo: PRLI from a target ?
1785 */
1786 bfa_trc(port->fcs, rx_fchs->s_id);
1787 rport->scsi_function = BFA_RPORT_TARGET;
1788 }
1789
1790 fcxp = bfa_fcs_fcxp_alloc(port->fcs);
1791 if (!fcxp)
1792 return;
1793
1794 len = fc_prli_acc_build(&fchs, bfa_fcxp_get_reqbuf(fcxp), rx_fchs->s_id,
1795 bfa_fcs_port_get_fcid(port), rx_fchs->ox_id,
1796 port->port_cfg.roles);
1797
1798 bfa_fcxp_send(fcxp, NULL, port->fabric->vf_id, port->lp_tag, BFA_FALSE,
1799 FC_CLASS_3, len, &fchs, NULL, NULL, FC_MAX_PDUSZ, 0);
1800}
1801
1802static void
1803bfa_fcs_rport_process_rpsc(struct bfa_fcs_rport_s *rport,
1804 struct fchs_s *rx_fchs, u16 len)
1805{
1806 struct bfa_fcxp_s *fcxp;
1807 struct fchs_s fchs;
1808 struct bfa_fcs_port_s *port = rport->port;
1809 struct fc_rpsc_speed_info_s speeds;
1810 struct bfa_pport_attr_s pport_attr;
1811
1812 bfa_trc(port->fcs, rx_fchs->s_id);
1813 bfa_trc(port->fcs, rx_fchs->d_id);
1814
1815 rport->stats.rpsc_rcvd++;
1816 speeds.port_speed_cap =
1817 RPSC_SPEED_CAP_1G | RPSC_SPEED_CAP_2G | RPSC_SPEED_CAP_4G |
1818 RPSC_SPEED_CAP_8G;
1819
1820 /*
1821 * get curent speed from pport attributes from BFA
1822 */
1823 bfa_pport_get_attr(port->fcs->bfa, &pport_attr);
1824
1825 speeds.port_op_speed = fc_bfa_speed_to_rpsc_operspeed(pport_attr.speed);
1826
1827 fcxp = bfa_fcs_fcxp_alloc(port->fcs);
1828 if (!fcxp)
1829 return;
1830
1831 len = fc_rpsc_acc_build(&fchs, bfa_fcxp_get_reqbuf(fcxp), rx_fchs->s_id,
1832 bfa_fcs_port_get_fcid(port), rx_fchs->ox_id,
1833 &speeds);
1834
1835 bfa_fcxp_send(fcxp, NULL, port->fabric->vf_id, port->lp_tag, BFA_FALSE,
1836 FC_CLASS_3, len, &fchs, NULL, NULL, FC_MAX_PDUSZ, 0);
1837}
1838
1839static void
1840bfa_fcs_rport_process_adisc(struct bfa_fcs_rport_s *rport,
1841 struct fchs_s *rx_fchs, u16 len)
1842{
1843 struct bfa_fcxp_s *fcxp;
1844 struct fchs_s fchs;
1845 struct bfa_fcs_port_s *port = rport->port;
1846 struct fc_adisc_s *adisc;
1847
1848 bfa_trc(port->fcs, rx_fchs->s_id);
1849 bfa_trc(port->fcs, rx_fchs->d_id);
1850
1851 rport->stats.adisc_rcvd++;
1852
1853 if (BFA_FCS_VPORT_IS_TARGET_MODE(port)) {
1854 /*
1855 * @todo : Target Mode handling
1856 */
1857 bfa_trc(port->fcs, rx_fchs->d_id);
1858 bfa_assert(0);
1859 return;
1860 }
1861
1862 adisc = (struct fc_adisc_s *) (rx_fchs + 1);
1863
1864 /*
1865 * Accept if the itnim for this rport is online. Else reject the ADISC
1866 */
1867 if (bfa_fcs_itnim_get_online_state(rport->itnim) == BFA_STATUS_OK) {
1868
1869 fcxp = bfa_fcs_fcxp_alloc(port->fcs);
1870 if (!fcxp)
1871 return;
1872
1873 len = fc_adisc_acc_build(&fchs, bfa_fcxp_get_reqbuf(fcxp),
1874 rx_fchs->s_id,
1875 bfa_fcs_port_get_fcid(port),
1876 rx_fchs->ox_id, port->port_cfg.pwwn,
1877 port->port_cfg.nwwn);
1878
1879 bfa_fcxp_send(fcxp, NULL, port->fabric->vf_id, port->lp_tag,
1880 BFA_FALSE, FC_CLASS_3, len, &fchs, NULL, NULL,
1881 FC_MAX_PDUSZ, 0);
1882 } else {
1883 rport->stats.adisc_rejected++;
1884 bfa_fcs_rport_send_ls_rjt(rport, rx_fchs,
1885 FC_LS_RJT_RSN_UNABLE_TO_PERF_CMD,
1886 FC_LS_RJT_EXP_LOGIN_REQUIRED);
1887 }
1888
1889}
1890
1891static void
1892bfa_fcs_rport_hal_online(struct bfa_fcs_rport_s *rport)
1893{
1894 struct bfa_fcs_port_s *port = rport->port;
1895 struct bfa_rport_info_s rport_info;
1896
1897 rport_info.pid = rport->pid;
1898 rport_info.local_pid = port->pid;
1899 rport_info.lp_tag = port->lp_tag;
1900 rport_info.vf_id = port->fabric->vf_id;
1901 rport_info.vf_en = port->fabric->is_vf;
1902 rport_info.fc_class = rport->fc_cos;
1903 rport_info.cisc = rport->cisc;
1904 rport_info.max_frmsz = rport->maxfrsize;
1905 bfa_rport_online(rport->bfa_rport, &rport_info);
1906}
1907
1908static void
1909bfa_fcs_rport_fc4_pause(struct bfa_fcs_rport_s *rport)
1910{
1911 if (bfa_fcs_port_is_initiator(rport->port))
1912 bfa_fcs_itnim_pause(rport->itnim);
1913
1914 if (bfa_fcs_port_is_target(rport->port))
1915 bfa_fcs_tin_pause(rport->tin);
1916}
1917
1918static void
1919bfa_fcs_rport_fc4_resume(struct bfa_fcs_rport_s *rport)
1920{
1921 if (bfa_fcs_port_is_initiator(rport->port))
1922 bfa_fcs_itnim_resume(rport->itnim);
1923
1924 if (bfa_fcs_port_is_target(rport->port))
1925 bfa_fcs_tin_resume(rport->tin);
1926}
1927
1928static struct bfa_fcs_rport_s *
1929bfa_fcs_rport_alloc(struct bfa_fcs_port_s *port, wwn_t pwwn, u32 rpid)
1930{
1931 struct bfa_fcs_s *fcs = port->fcs;
1932 struct bfa_fcs_rport_s *rport;
1933 struct bfad_rport_s *rport_drv;
1934
1935 /**
1936 * allocate rport
1937 */
1938 if (bfa_fcb_rport_alloc(fcs->bfad, &rport, &rport_drv)
1939 != BFA_STATUS_OK) {
1940 bfa_trc(fcs, rpid);
1941 return NULL;
1942 }
1943
1944 /*
1945 * Initialize r-port
1946 */
1947 rport->port = port;
1948 rport->fcs = fcs;
1949 rport->rp_drv = rport_drv;
1950 rport->pid = rpid;
1951 rport->pwwn = pwwn;
1952
1953 /**
1954 * allocate BFA rport
1955 */
1956 rport->bfa_rport = bfa_rport_create(port->fcs->bfa, rport);
1957 if (!rport->bfa_rport) {
1958 bfa_trc(fcs, rpid);
1959 kfree(rport_drv);
1960 return NULL;
1961 }
1962
1963 /**
1964 * allocate FC-4s
1965 */
1966 bfa_assert(bfa_fcs_port_is_initiator(port) ^
1967 bfa_fcs_port_is_target(port));
1968
1969 if (bfa_fcs_port_is_initiator(port)) {
1970 rport->itnim = bfa_fcs_itnim_create(rport);
1971 if (!rport->itnim) {
1972 bfa_trc(fcs, rpid);
1973 bfa_rport_delete(rport->bfa_rport);
1974 kfree(rport_drv);
1975 return NULL;
1976 }
1977 }
1978
1979 if (bfa_fcs_port_is_target(port)) {
1980 rport->tin = bfa_fcs_tin_create(rport);
1981 if (!rport->tin) {
1982 bfa_trc(fcs, rpid);
1983 bfa_rport_delete(rport->bfa_rport);
1984 kfree(rport_drv);
1985 return NULL;
1986 }
1987 }
1988
1989 bfa_fcs_port_add_rport(port, rport);
1990
1991 bfa_sm_set_state(rport, bfa_fcs_rport_sm_uninit);
1992
1993 /*
1994 * Initialize the Rport Features(RPF) Sub Module
1995 */
1996 if (!BFA_FCS_PID_IS_WKA(rport->pid))
1997 bfa_fcs_rpf_init(rport);
1998
1999 return rport;
2000}
2001
2002
2003static void
2004bfa_fcs_rport_free(struct bfa_fcs_rport_s *rport)
2005{
2006 struct bfa_fcs_port_s *port = rport->port;
2007
2008 /**
2009 * - delete FC-4s
2010 * - delete BFA rport
2011 * - remove from queue of rports
2012 */
2013 if (bfa_fcs_port_is_initiator(port))
2014 bfa_fcs_itnim_delete(rport->itnim);
2015
2016 if (bfa_fcs_port_is_target(port))
2017 bfa_fcs_tin_delete(rport->tin);
2018
2019 bfa_rport_delete(rport->bfa_rport);
2020 bfa_fcs_port_del_rport(port, rport);
2021 kfree(rport->rp_drv);
2022}
2023
2024static void
2025bfa_fcs_rport_aen_post(struct bfa_fcs_rport_s *rport,
2026 enum bfa_rport_aen_event event,
2027 struct bfa_rport_aen_data_s *data)
2028{
2029 union bfa_aen_data_u aen_data;
2030 struct bfa_log_mod_s *logmod = rport->fcs->logm;
2031 wwn_t lpwwn = bfa_fcs_port_get_pwwn(rport->port);
2032 wwn_t rpwwn = rport->pwwn;
2033 char lpwwn_ptr[BFA_STRING_32];
2034 char rpwwn_ptr[BFA_STRING_32];
2035 char *prio_str[] = { "unknown", "high", "medium", "low" };
2036
2037 wwn2str(lpwwn_ptr, lpwwn);
2038 wwn2str(rpwwn_ptr, rpwwn);
2039
2040 switch (event) {
2041 case BFA_RPORT_AEN_ONLINE:
2042 bfa_log(logmod, BFA_AEN_RPORT_ONLINE, rpwwn_ptr, lpwwn_ptr);
2043 break;
2044 case BFA_RPORT_AEN_OFFLINE:
2045 bfa_log(logmod, BFA_AEN_RPORT_OFFLINE, rpwwn_ptr, lpwwn_ptr);
2046 break;
2047 case BFA_RPORT_AEN_DISCONNECT:
2048 bfa_log(logmod, BFA_AEN_RPORT_DISCONNECT, rpwwn_ptr, lpwwn_ptr);
2049 break;
2050 case BFA_RPORT_AEN_QOS_PRIO:
2051 aen_data.rport.priv.qos = data->priv.qos;
2052 bfa_log(logmod, BFA_AEN_RPORT_QOS_PRIO,
2053 prio_str[aen_data.rport.priv.qos.qos_priority],
2054 rpwwn_ptr, lpwwn_ptr);
2055 break;
2056 case BFA_RPORT_AEN_QOS_FLOWID:
2057 aen_data.rport.priv.qos = data->priv.qos;
2058 bfa_log(logmod, BFA_AEN_RPORT_QOS_FLOWID,
2059 aen_data.rport.priv.qos.qos_flow_id, rpwwn_ptr,
2060 lpwwn_ptr);
2061 break;
2062 default:
2063 break;
2064 }
2065
2066 aen_data.rport.vf_id = rport->port->fabric->vf_id;
2067 aen_data.rport.ppwwn =
2068 bfa_fcs_port_get_pwwn(bfa_fcs_get_base_port(rport->fcs));
2069 aen_data.rport.lpwwn = lpwwn;
2070 aen_data.rport.rpwwn = rpwwn;
2071}
2072
2073static void
2074bfa_fcs_rport_online_action(struct bfa_fcs_rport_s *rport)
2075{
2076 struct bfa_fcs_port_s *port = rport->port;
2077
2078 rport->stats.onlines++;
2079
2080 if (bfa_fcs_port_is_initiator(port)) {
2081 bfa_fcs_itnim_rport_online(rport->itnim);
2082 if (!BFA_FCS_PID_IS_WKA(rport->pid))
2083 bfa_fcs_rpf_rport_online(rport);
2084 };
2085
2086 if (bfa_fcs_port_is_target(port))
2087 bfa_fcs_tin_rport_online(rport->tin);
2088
2089 /*
2090 * Don't post events for well known addresses
2091 */
2092 if (!BFA_FCS_PID_IS_WKA(rport->pid))
2093 bfa_fcs_rport_aen_post(rport, BFA_RPORT_AEN_ONLINE, NULL);
2094}
2095
2096static void
2097bfa_fcs_rport_offline_action(struct bfa_fcs_rport_s *rport)
2098{
2099 struct bfa_fcs_port_s *port = rport->port;
2100
2101 rport->stats.offlines++;
2102
2103 /*
2104 * Don't post events for well known addresses
2105 */
2106 if (!BFA_FCS_PID_IS_WKA(rport->pid)) {
2107 if (bfa_fcs_port_is_online(rport->port) == BFA_TRUE) {
2108 bfa_fcs_rport_aen_post(rport, BFA_RPORT_AEN_DISCONNECT,
2109 NULL);
2110 } else {
2111 bfa_fcs_rport_aen_post(rport, BFA_RPORT_AEN_OFFLINE,
2112 NULL);
2113 }
2114 }
2115
2116 if (bfa_fcs_port_is_initiator(port)) {
2117 bfa_fcs_itnim_rport_offline(rport->itnim);
2118 if (!BFA_FCS_PID_IS_WKA(rport->pid))
2119 bfa_fcs_rpf_rport_offline(rport);
2120 }
2121
2122 if (bfa_fcs_port_is_target(port))
2123 bfa_fcs_tin_rport_offline(rport->tin);
2124}
2125
2126/**
2127 * Update rport parameters from PLOGI or PLOGI accept.
2128 */
2129static void
2130bfa_fcs_rport_update(struct bfa_fcs_rport_s *rport, struct fc_logi_s *plogi)
2131{
2132 struct bfa_fcs_port_s *port = rport->port;
2133
2134 /**
2135 * - port name
2136 * - node name
2137 */
2138 rport->pwwn = plogi->port_name;
2139 rport->nwwn = plogi->node_name;
2140
2141 /**
2142 * - class of service
2143 */
2144 rport->fc_cos = 0;
2145 if (plogi->class3.class_valid)
2146 rport->fc_cos = FC_CLASS_3;
2147
2148 if (plogi->class2.class_valid)
2149 rport->fc_cos |= FC_CLASS_2;
2150
2151 /**
2152 * - CISC
2153 * - MAX receive frame size
2154 */
2155 rport->cisc = plogi->csp.cisc;
2156 rport->maxfrsize = bfa_os_ntohs(plogi->class3.rxsz);
2157
2158 bfa_trc(port->fcs, bfa_os_ntohs(plogi->csp.bbcred));
2159 bfa_trc(port->fcs, port->fabric->bb_credit);
2160 /**
2161 * Direct Attach P2P mode :
2162 * This is to handle a bug (233476) in IBM targets in Direct Attach
2163 * Mode. Basically, in FLOGI Accept the target would have erroneously
2164 * set the BB Credit to the value used in the FLOGI sent by the HBA.
2165 * It uses the correct value (its own BB credit) in PLOGI.
2166 */
2167 if ((!bfa_fcs_fabric_is_switched(port->fabric))
2168 && (bfa_os_ntohs(plogi->csp.bbcred) < port->fabric->bb_credit)) {
2169
2170 bfa_trc(port->fcs, bfa_os_ntohs(plogi->csp.bbcred));
2171 bfa_trc(port->fcs, port->fabric->bb_credit);
2172
2173 port->fabric->bb_credit = bfa_os_ntohs(plogi->csp.bbcred);
2174 bfa_pport_set_tx_bbcredit(port->fcs->bfa,
2175 port->fabric->bb_credit);
2176 }
2177
2178}
2179
2180/**
2181 * Called to handle LOGO received from an existing remote port.
2182 */
2183static void
2184bfa_fcs_rport_process_logo(struct bfa_fcs_rport_s *rport, struct fchs_s *fchs)
2185{
2186 rport->reply_oxid = fchs->ox_id;
2187 bfa_trc(rport->fcs, rport->reply_oxid);
2188
2189 rport->stats.logo_rcvd++;
2190 bfa_sm_send_event(rport, RPSM_EVENT_LOGO_RCVD);
2191}
2192
2193
2194
2195/**
2196 * fcs_rport_public FCS rport public interfaces
2197 */
2198
2199/**
2200 * Called by bport/vport to create a remote port instance for a discovered
2201 * remote device.
2202 *
2203 * @param[in] port - base port or vport
2204 * @param[in] rpid - remote port ID
2205 *
2206 * @return None
2207 */
2208struct bfa_fcs_rport_s *
2209bfa_fcs_rport_create(struct bfa_fcs_port_s *port, u32 rpid)
2210{
2211 struct bfa_fcs_rport_s *rport;
2212
2213 bfa_trc(port->fcs, rpid);
2214 rport = bfa_fcs_rport_alloc(port, WWN_NULL, rpid);
2215 if (!rport)
2216 return NULL;
2217
2218 bfa_sm_send_event(rport, RPSM_EVENT_PLOGI_SEND);
2219 return rport;
2220}
2221
2222/**
2223 * Called to create a rport for which only the wwn is known.
2224 *
2225 * @param[in] port - base port
2226 * @param[in] rpwwn - remote port wwn
2227 *
2228 * @return None
2229 */
2230struct bfa_fcs_rport_s *
2231bfa_fcs_rport_create_by_wwn(struct bfa_fcs_port_s *port, wwn_t rpwwn)
2232{
2233 struct bfa_fcs_rport_s *rport;
2234
2235 bfa_trc(port->fcs, rpwwn);
2236 rport = bfa_fcs_rport_alloc(port, rpwwn, 0);
2237 if (!rport)
2238 return NULL;
2239
2240 bfa_sm_send_event(rport, RPSM_EVENT_ADDRESS_DISC);
2241 return rport;
2242}
2243
2244/**
2245 * Called by bport in private loop topology to indicate that a
2246 * rport has been discovered and plogi has been completed.
2247 *
2248 * @param[in] port - base port or vport
2249 * @param[in] rpid - remote port ID
2250 */
2251void
2252bfa_fcs_rport_start(struct bfa_fcs_port_s *port, struct fchs_s *fchs,
2253 struct fc_logi_s *plogi)
2254{
2255 struct bfa_fcs_rport_s *rport;
2256
2257 rport = bfa_fcs_rport_alloc(port, WWN_NULL, fchs->s_id);
2258 if (!rport)
2259 return;
2260
2261 bfa_fcs_rport_update(rport, plogi);
2262
2263 bfa_sm_send_event(rport, RPSM_EVENT_PLOGI_COMP);
2264}
2265
2266/**
2267 * Called by bport/vport to handle PLOGI received from a new remote port.
2268 * If an existing rport does a plogi, it will be handled separately.
2269 */
2270void
2271bfa_fcs_rport_plogi_create(struct bfa_fcs_port_s *port, struct fchs_s *fchs,
2272 struct fc_logi_s *plogi)
2273{
2274 struct bfa_fcs_rport_s *rport;
2275
2276 rport = bfa_fcs_rport_alloc(port, plogi->port_name, fchs->s_id);
2277 if (!rport)
2278 return;
2279
2280 bfa_fcs_rport_update(rport, plogi);
2281
2282 rport->reply_oxid = fchs->ox_id;
2283 bfa_trc(rport->fcs, rport->reply_oxid);
2284
2285 rport->stats.plogi_rcvd++;
2286 bfa_sm_send_event(rport, RPSM_EVENT_PLOGI_RCVD);
2287}
2288
2289static int
2290wwn_compare(wwn_t wwn1, wwn_t wwn2)
2291{
2292 u8 *b1 = (u8 *) &wwn1;
2293 u8 *b2 = (u8 *) &wwn2;
2294 int i;
2295
2296 for (i = 0; i < sizeof(wwn_t); i++) {
2297 if (b1[i] < b2[i])
2298 return -1;
2299 if (b1[i] > b2[i])
2300 return 1;
2301 }
2302 return 0;
2303}
2304
2305/**
2306 * Called by bport/vport to handle PLOGI received from an existing
2307 * remote port.
2308 */
2309void
2310bfa_fcs_rport_plogi(struct bfa_fcs_rport_s *rport, struct fchs_s *rx_fchs,
2311 struct fc_logi_s *plogi)
2312{
2313 /**
2314 * @todo Handle P2P and initiator-initiator.
2315 */
2316
2317 bfa_fcs_rport_update(rport, plogi);
2318
2319 rport->reply_oxid = rx_fchs->ox_id;
2320 bfa_trc(rport->fcs, rport->reply_oxid);
2321
2322 /**
2323 * In Switched fabric topology,
2324 * PLOGI to each other. If our pwwn is smaller, ignore it,
2325 * if it is not a well known address.
2326 * If the link topology is N2N,
2327 * this Plogi should be accepted.
2328 */
2329 if ((wwn_compare(rport->port->port_cfg.pwwn, rport->pwwn) == -1)
2330 && (bfa_fcs_fabric_is_switched(rport->port->fabric))
2331 && (!BFA_FCS_PID_IS_WKA(rport->pid))) {
2332 bfa_trc(rport->fcs, rport->pid);
2333 return;
2334 }
2335
2336 rport->stats.plogi_rcvd++;
2337 bfa_sm_send_event(rport, RPSM_EVENT_PLOGI_RCVD);
2338}
2339
2340/**
2341 * Called by bport/vport to delete a remote port instance.
2342 *
2343* Rport delete is called under the following conditions:
2344 * - vport is deleted
2345 * - vf is deleted
2346 * - explicit request from OS to delete rport (vmware)
2347 */
2348void
2349bfa_fcs_rport_delete(struct bfa_fcs_rport_s *rport)
2350{
2351 bfa_sm_send_event(rport, RPSM_EVENT_DELETE);
2352}
2353
2354/**
2355 * Called by bport/vport to when a target goes offline.
2356 *
2357 */
2358void
2359bfa_fcs_rport_offline(struct bfa_fcs_rport_s *rport)
2360{
2361 bfa_sm_send_event(rport, RPSM_EVENT_LOGO_IMP);
2362}
2363
2364/**
2365 * Called by bport in n2n when a target (attached port) becomes online.
2366 *
2367 */
2368void
2369bfa_fcs_rport_online(struct bfa_fcs_rport_s *rport)
2370{
2371 bfa_sm_send_event(rport, RPSM_EVENT_PLOGI_SEND);
2372}
2373
2374/**
2375 * Called by bport/vport to notify SCN for the remote port
2376 */
2377void
2378bfa_fcs_rport_scn(struct bfa_fcs_rport_s *rport)
2379{
2380
2381 rport->stats.rscns++;
2382 bfa_sm_send_event(rport, RPSM_EVENT_SCN);
2383}
2384
2385/**
2386 * Called by fcpim to notify that the ITN cleanup is done.
2387 */
2388void
2389bfa_fcs_rport_itnim_ack(struct bfa_fcs_rport_s *rport)
2390{
2391 bfa_sm_send_event(rport, RPSM_EVENT_FC4_OFFLINE);
2392}
2393
2394/**
2395 * Called by fcptm to notify that the ITN cleanup is done.
2396 */
2397void
2398bfa_fcs_rport_tin_ack(struct bfa_fcs_rport_s *rport)
2399{
2400 bfa_sm_send_event(rport, RPSM_EVENT_FC4_OFFLINE);
2401}
2402
2403/**
2404 * This routine BFA callback for bfa_rport_online() call.
2405 *
2406 * param[in] cb_arg - rport struct.
2407 *
2408 * return
2409 * void
2410 *
2411* Special Considerations:
2412 *
2413 * note
2414 */
2415void
2416bfa_cb_rport_online(void *cbarg)
2417{
2418
2419 struct bfa_fcs_rport_s *rport = (struct bfa_fcs_rport_s *)cbarg;
2420
2421 bfa_trc(rport->fcs, rport->pwwn);
2422 bfa_sm_send_event(rport, RPSM_EVENT_HCB_ONLINE);
2423}
2424
2425/**
2426 * This routine BFA callback for bfa_rport_offline() call.
2427 *
2428 * param[in] rport -
2429 *
2430 * return
2431 * void
2432 *
2433 * Special Considerations:
2434 *
2435 * note
2436 */
2437void
2438bfa_cb_rport_offline(void *cbarg)
2439{
2440 struct bfa_fcs_rport_s *rport = (struct bfa_fcs_rport_s *)cbarg;
2441
2442 bfa_trc(rport->fcs, rport->pwwn);
2443 bfa_sm_send_event(rport, RPSM_EVENT_HCB_OFFLINE);
2444}
2445
2446/**
2447 * This routine is a static BFA callback when there is a QoS flow_id
2448 * change notification
2449 *
2450 * @param[in] rport -
2451 *
2452 * @return void
2453 *
2454 * Special Considerations:
2455 *
2456 * @note
2457 */
2458void
2459bfa_cb_rport_qos_scn_flowid(void *cbarg,
2460 struct bfa_rport_qos_attr_s old_qos_attr,
2461 struct bfa_rport_qos_attr_s new_qos_attr)
2462{
2463 struct bfa_fcs_rport_s *rport = (struct bfa_fcs_rport_s *)cbarg;
2464 struct bfa_rport_aen_data_s aen_data;
2465
2466 bfa_trc(rport->fcs, rport->pwwn);
2467 aen_data.priv.qos = new_qos_attr;
2468 bfa_fcs_rport_aen_post(rport, BFA_RPORT_AEN_QOS_FLOWID, &aen_data);
2469}
2470
2471/**
2472 * This routine is a static BFA callback when there is a QoS priority
2473 * change notification
2474 *
2475 * @param[in] rport -
2476 *
2477 * @return void
2478 *
2479 * Special Considerations:
2480 *
2481 * @note
2482 */
2483void
2484bfa_cb_rport_qos_scn_prio(void *cbarg, struct bfa_rport_qos_attr_s old_qos_attr,
2485 struct bfa_rport_qos_attr_s new_qos_attr)
2486{
2487 struct bfa_fcs_rport_s *rport = (struct bfa_fcs_rport_s *)cbarg;
2488 struct bfa_rport_aen_data_s aen_data;
2489
2490 bfa_trc(rport->fcs, rport->pwwn);
2491 aen_data.priv.qos = new_qos_attr;
2492 bfa_fcs_rport_aen_post(rport, BFA_RPORT_AEN_QOS_PRIO, &aen_data);
2493}
2494
2495/**
2496 * Called to process any unsolicted frames from this remote port
2497 */
2498void
2499bfa_fcs_rport_logo_imp(struct bfa_fcs_rport_s *rport)
2500{
2501 bfa_sm_send_event(rport, RPSM_EVENT_LOGO_IMP);
2502}
2503
2504/**
2505 * Called to process any unsolicted frames from this remote port
2506 */
2507void
2508bfa_fcs_rport_uf_recv(struct bfa_fcs_rport_s *rport, struct fchs_s *fchs,
2509 u16 len)
2510{
2511 struct bfa_fcs_port_s *port = rport->port;
2512 struct fc_els_cmd_s *els_cmd;
2513
2514 bfa_trc(rport->fcs, fchs->s_id);
2515 bfa_trc(rport->fcs, fchs->d_id);
2516 bfa_trc(rport->fcs, fchs->type);
2517
2518 if (fchs->type != FC_TYPE_ELS)
2519 return;
2520
2521 els_cmd = (struct fc_els_cmd_s *) (fchs + 1);
2522
2523 bfa_trc(rport->fcs, els_cmd->els_code);
2524
2525 switch (els_cmd->els_code) {
2526 case FC_ELS_LOGO:
2527 bfa_fcs_rport_process_logo(rport, fchs);
2528 break;
2529
2530 case FC_ELS_ADISC:
2531 bfa_fcs_rport_process_adisc(rport, fchs, len);
2532 break;
2533
2534 case FC_ELS_PRLO:
2535 if (bfa_fcs_port_is_initiator(port))
2536 bfa_fcs_fcpim_uf_recv(rport->itnim, fchs, len);
2537
2538 if (bfa_fcs_port_is_target(port))
2539 bfa_fcs_fcptm_uf_recv(rport->tin, fchs, len);
2540 break;
2541
2542 case FC_ELS_PRLI:
2543 bfa_fcs_rport_process_prli(rport, fchs, len);
2544 break;
2545
2546 case FC_ELS_RPSC:
2547 bfa_fcs_rport_process_rpsc(rport, fchs, len);
2548 break;
2549
2550 default:
2551 bfa_fcs_rport_send_ls_rjt(rport, fchs,
2552 FC_LS_RJT_RSN_CMD_NOT_SUPP,
2553 FC_LS_RJT_EXP_NO_ADDL_INFO);
2554 break;
2555 }
2556}
2557
2558/*
2559 * Send a LS reject
2560 */
2561static void
2562bfa_fcs_rport_send_ls_rjt(struct bfa_fcs_rport_s *rport, struct fchs_s *rx_fchs,
2563 u8 reason_code, u8 reason_code_expl)
2564{
2565 struct bfa_fcs_port_s *port = rport->port;
2566 struct fchs_s fchs;
2567 struct bfa_fcxp_s *fcxp;
2568 int len;
2569
2570 bfa_trc(rport->fcs, rx_fchs->s_id);
2571
2572 fcxp = bfa_fcs_fcxp_alloc(rport->fcs);
2573 if (!fcxp)
2574 return;
2575
2576 len = fc_ls_rjt_build(&fchs, bfa_fcxp_get_reqbuf(fcxp), rx_fchs->s_id,
2577 bfa_fcs_port_get_fcid(port), rx_fchs->ox_id,
2578 reason_code, reason_code_expl);
2579
2580 bfa_fcxp_send(fcxp, NULL, port->fabric->vf_id, port->lp_tag, BFA_FALSE,
2581 FC_CLASS_3, len, &fchs, NULL, NULL, FC_MAX_PDUSZ, 0);
2582}
2583
7725ccfd
JH		 2584/**
2585 * Return state of rport.
2586 */
2587int
2588bfa_fcs_rport_get_state(struct bfa_fcs_rport_s *rport)
2589{
2590 return bfa_sm_to_state(rport_sm_table, rport->sm);
2591}
2592
2593/**
2594 * Called by the Driver to set rport delete/ageout timeout
2595 *
2596 * param[in] rport timeout value in seconds.
2597 *
2598 * return None
2599 */
2600void
2601bfa_fcs_rport_set_del_timeout(u8 rport_tmo)
2602{
2603 /*
2604 * convert to Millisecs
2605 */
2606 if (rport_tmo > 0)
2607 bfa_fcs_rport_del_timeout = rport_tmo * 1000;
2608}
kernel source for telekom puls (alcatel/mediatek)