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[SCSI] bfa: remove unused functions and misc cleanups
[linux-2.6-block.git] / drivers / scsi / bfa / bfa_fcs_rport.c
CommitLineData
7725ccfd 1/*
a36c61f9 2 * Copyright (c) 2005-2010 Brocade Communications Systems, Inc.
7725ccfd
JH		 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
5fbe25c7 18/*
7725ccfd
JH		 19 * rport.c Remote port implementation.
20 */
21
f16a1750 22#include "bfad_drv.h"
a36c61f9
KG		 23#include "bfa_fcs.h"
24#include "bfa_fcbuild.h"
7725ccfd
JH		 25
26BFA_TRC_FILE(FCS, RPORT);
27
a36c61f9
KG		 28static u32
29bfa_fcs_rport_del_timeout = BFA_FCS_RPORT_DEF_DEL_TIMEOUT * 1000;
30 /* In millisecs */
7725ccfd
JH		 31/*
32 * forward declarations
33 */
a36c61f9
KG		 34static struct bfa_fcs_rport_s *bfa_fcs_rport_alloc(
35 struct bfa_fcs_lport_s *port, wwn_t pwwn, u32 rpid);
36static void bfa_fcs_rport_free(struct bfa_fcs_rport_s *rport);
37static void bfa_fcs_rport_hal_online(struct bfa_fcs_rport_s *rport);
38static void bfa_fcs_rport_online_action(struct bfa_fcs_rport_s *rport);
39static void bfa_fcs_rport_offline_action(struct bfa_fcs_rport_s *rport);
40static void bfa_fcs_rport_update(struct bfa_fcs_rport_s *rport,
41 struct fc_logi_s *plogi);
42static void bfa_fcs_rport_timeout(void *arg);
43static void bfa_fcs_rport_send_plogi(void *rport_cbarg,
7725ccfd 44 struct bfa_fcxp_s *fcxp_alloced);
a36c61f9
KG		 45static void bfa_fcs_rport_send_plogiacc(void *rport_cbarg,
46 struct bfa_fcxp_s *fcxp_alloced);
47static void bfa_fcs_rport_plogi_response(void *fcsarg,
48 struct bfa_fcxp_s *fcxp, void *cbarg,
49 bfa_status_t req_status, u32 rsp_len,
50 u32 resid_len, struct fchs_s *rsp_fchs);
51static void bfa_fcs_rport_send_adisc(void *rport_cbarg,
7725ccfd 52 struct bfa_fcxp_s *fcxp_alloced);
a36c61f9
KG		 53static void bfa_fcs_rport_adisc_response(void *fcsarg,
54 struct bfa_fcxp_s *fcxp, void *cbarg,
55 bfa_status_t req_status, u32 rsp_len,
56 u32 resid_len, struct fchs_s *rsp_fchs);
57static void bfa_fcs_rport_send_nsdisc(void *rport_cbarg,
7725ccfd 58 struct bfa_fcxp_s *fcxp_alloced);
a36c61f9
KG		 59static void bfa_fcs_rport_gidpn_response(void *fcsarg,
60 struct bfa_fcxp_s *fcxp, void *cbarg,
61 bfa_status_t req_status, u32 rsp_len,
62 u32 resid_len, struct fchs_s *rsp_fchs);
63static void bfa_fcs_rport_gpnid_response(void *fcsarg,
64 struct bfa_fcxp_s *fcxp, void *cbarg,
65 bfa_status_t req_status, u32 rsp_len,
66 u32 resid_len, struct fchs_s *rsp_fchs);
67static void bfa_fcs_rport_send_logo(void *rport_cbarg,
7725ccfd 68 struct bfa_fcxp_s *fcxp_alloced);
a36c61f9
KG		 69static void bfa_fcs_rport_send_logo_acc(void *rport_cbarg);
70static void bfa_fcs_rport_process_prli(struct bfa_fcs_rport_s *rport,
71 struct fchs_s *rx_fchs, u16 len);
72static void bfa_fcs_rport_send_ls_rjt(struct bfa_fcs_rport_s *rport,
73 struct fchs_s *rx_fchs, u8 reason_code,
74 u8 reason_code_expl);
75static void bfa_fcs_rport_process_adisc(struct bfa_fcs_rport_s *rport,
76 struct fchs_s *rx_fchs, u16 len);
77static void bfa_fcs_rport_send_prlo_acc(struct bfa_fcs_rport_s *rport);
7725ccfd 78
a36c61f9 79static void bfa_fcs_rport_sm_uninit(struct bfa_fcs_rport_s *rport,
7725ccfd 80 enum rport_event event);
a36c61f9
KG		 81static void bfa_fcs_rport_sm_plogi_sending(struct bfa_fcs_rport_s *rport,
82 enum rport_event event);
83static void bfa_fcs_rport_sm_plogiacc_sending(struct bfa_fcs_rport_s *rport,
7725ccfd 84 enum rport_event event);
a36c61f9
KG		 85static void bfa_fcs_rport_sm_plogi_retry(struct bfa_fcs_rport_s *rport,
86 enum rport_event event);
87static void bfa_fcs_rport_sm_plogi(struct bfa_fcs_rport_s *rport,
7725ccfd 88 enum rport_event event);
a36c61f9
KG		 89static void bfa_fcs_rport_sm_hal_online(struct bfa_fcs_rport_s *rport,
90 enum rport_event event);
91static void bfa_fcs_rport_sm_online(struct bfa_fcs_rport_s *rport,
92 enum rport_event event);
93static void bfa_fcs_rport_sm_nsquery_sending(struct bfa_fcs_rport_s *rport,
7725ccfd 94 enum rport_event event);
a36c61f9 95static void bfa_fcs_rport_sm_nsquery(struct bfa_fcs_rport_s *rport,
7725ccfd 96 enum rport_event event);
a36c61f9
KG		 97static void bfa_fcs_rport_sm_adisc_sending(struct bfa_fcs_rport_s *rport,
98 enum rport_event event);
99static void bfa_fcs_rport_sm_adisc(struct bfa_fcs_rport_s *rport,
100 enum rport_event event);
101static void bfa_fcs_rport_sm_fc4_logorcv(struct bfa_fcs_rport_s *rport,
102 enum rport_event event);
103static void bfa_fcs_rport_sm_fc4_logosend(struct bfa_fcs_rport_s *rport,
104 enum rport_event event);
105static void bfa_fcs_rport_sm_fc4_offline(struct bfa_fcs_rport_s *rport,
106 enum rport_event event);
107static void bfa_fcs_rport_sm_hcb_offline(struct bfa_fcs_rport_s *rport,
108 enum rport_event event);
109static void bfa_fcs_rport_sm_hcb_logorcv(struct bfa_fcs_rport_s *rport,
110 enum rport_event event);
111static void bfa_fcs_rport_sm_hcb_logosend(struct bfa_fcs_rport_s *rport,
112 enum rport_event event);
113static void bfa_fcs_rport_sm_logo_sending(struct bfa_fcs_rport_s *rport,
114 enum rport_event event);
115static void bfa_fcs_rport_sm_offline(struct bfa_fcs_rport_s *rport,
7725ccfd 116 enum rport_event event);
a36c61f9
KG		 117static void bfa_fcs_rport_sm_nsdisc_sending(struct bfa_fcs_rport_s *rport,
118 enum rport_event event);
119static void bfa_fcs_rport_sm_nsdisc_retry(struct bfa_fcs_rport_s *rport,
120 enum rport_event event);
121static void bfa_fcs_rport_sm_nsdisc_sent(struct bfa_fcs_rport_s *rport,
122 enum rport_event event);
123static void bfa_fcs_rport_sm_nsdisc_sent(struct bfa_fcs_rport_s *rport,
7725ccfd 124 enum rport_event event);
7725ccfd
JH		 125
126static struct bfa_sm_table_s rport_sm_table[] = {
127 {BFA_SM(bfa_fcs_rport_sm_uninit), BFA_RPORT_UNINIT},
128 {BFA_SM(bfa_fcs_rport_sm_plogi_sending), BFA_RPORT_PLOGI},
129 {BFA_SM(bfa_fcs_rport_sm_plogiacc_sending), BFA_RPORT_ONLINE},
130 {BFA_SM(bfa_fcs_rport_sm_plogi_retry), BFA_RPORT_PLOGI_RETRY},
131 {BFA_SM(bfa_fcs_rport_sm_plogi), BFA_RPORT_PLOGI},
132 {BFA_SM(bfa_fcs_rport_sm_hal_online), BFA_RPORT_ONLINE},
133 {BFA_SM(bfa_fcs_rport_sm_online), BFA_RPORT_ONLINE},
134 {BFA_SM(bfa_fcs_rport_sm_nsquery_sending), BFA_RPORT_NSQUERY},
135 {BFA_SM(bfa_fcs_rport_sm_nsquery), BFA_RPORT_NSQUERY},
136 {BFA_SM(bfa_fcs_rport_sm_adisc_sending), BFA_RPORT_ADISC},
137 {BFA_SM(bfa_fcs_rport_sm_adisc), BFA_RPORT_ADISC},
138 {BFA_SM(bfa_fcs_rport_sm_fc4_logorcv), BFA_RPORT_LOGORCV},
139 {BFA_SM(bfa_fcs_rport_sm_fc4_logosend), BFA_RPORT_LOGO},
140 {BFA_SM(bfa_fcs_rport_sm_fc4_offline), BFA_RPORT_OFFLINE},
141 {BFA_SM(bfa_fcs_rport_sm_hcb_offline), BFA_RPORT_OFFLINE},
142 {BFA_SM(bfa_fcs_rport_sm_hcb_logorcv), BFA_RPORT_LOGORCV},
143 {BFA_SM(bfa_fcs_rport_sm_hcb_logosend), BFA_RPORT_LOGO},
144 {BFA_SM(bfa_fcs_rport_sm_logo_sending), BFA_RPORT_LOGO},
145 {BFA_SM(bfa_fcs_rport_sm_offline), BFA_RPORT_OFFLINE},
146 {BFA_SM(bfa_fcs_rport_sm_nsdisc_sending), BFA_RPORT_NSDISC},
147 {BFA_SM(bfa_fcs_rport_sm_nsdisc_retry), BFA_RPORT_NSDISC},
148 {BFA_SM(bfa_fcs_rport_sm_nsdisc_sent), BFA_RPORT_NSDISC},
149};
150
5fbe25c7 151/*
a36c61f9 152 * Beginning state.
7725ccfd
JH		 153 */
154static void
155bfa_fcs_rport_sm_uninit(struct bfa_fcs_rport_s *rport, enum rport_event event)
156{
157 bfa_trc(rport->fcs, rport->pwwn);
158 bfa_trc(rport->fcs, rport->pid);
159 bfa_trc(rport->fcs, event);
160
161 switch (event) {
162 case RPSM_EVENT_PLOGI_SEND:
163 bfa_sm_set_state(rport, bfa_fcs_rport_sm_plogi_sending);
164 rport->plogi_retries = 0;
165 bfa_fcs_rport_send_plogi(rport, NULL);
166 break;
167
168 case RPSM_EVENT_PLOGI_RCVD:
169 bfa_sm_set_state(rport, bfa_fcs_rport_sm_plogiacc_sending);
170 bfa_fcs_rport_send_plogiacc(rport, NULL);
171 break;
172
173 case RPSM_EVENT_PLOGI_COMP:
174 bfa_sm_set_state(rport, bfa_fcs_rport_sm_hal_online);
175 bfa_fcs_rport_hal_online(rport);
176 break;
177
178 case RPSM_EVENT_ADDRESS_CHANGE:
179 case RPSM_EVENT_ADDRESS_DISC:
180 bfa_sm_set_state(rport, bfa_fcs_rport_sm_nsdisc_sending);
181 rport->ns_retries = 0;
a36c61f9 182 bfa_fcs_rport_send_nsdisc(rport, NULL);
7725ccfd 183 break;
7725ccfd 184 default:
e641de37 185 bfa_sm_fault(rport->fcs, event);
7725ccfd
JH		 186 }
187}
188
5fbe25c7 189/*
a36c61f9 190 * PLOGI is being sent.
7725ccfd
JH		 191 */
192static void
193bfa_fcs_rport_sm_plogi_sending(struct bfa_fcs_rport_s *rport,
a36c61f9 194 enum rport_event event)
7725ccfd
JH		 195{
196 bfa_trc(rport->fcs, rport->pwwn);
197 bfa_trc(rport->fcs, rport->pid);
198 bfa_trc(rport->fcs, event);
199
200 switch (event) {
201 case RPSM_EVENT_FCXP_SENT:
202 bfa_sm_set_state(rport, bfa_fcs_rport_sm_plogi);
203 break;
204
205 case RPSM_EVENT_DELETE:
206 bfa_sm_set_state(rport, bfa_fcs_rport_sm_uninit);
207 bfa_fcxp_walloc_cancel(rport->fcs->bfa, &rport->fcxp_wqe);
208 bfa_fcs_rport_free(rport);
209 break;
210
211 case RPSM_EVENT_PLOGI_RCVD:
212 bfa_sm_set_state(rport, bfa_fcs_rport_sm_plogiacc_sending);
213 bfa_fcxp_walloc_cancel(rport->fcs->bfa, &rport->fcxp_wqe);
214 bfa_fcs_rport_send_plogiacc(rport, NULL);
215 break;
216
217 case RPSM_EVENT_ADDRESS_CHANGE:
a36c61f9
KG		 218 case RPSM_EVENT_SCN:
219 /* query the NS */
7725ccfd
JH		 220 bfa_fcxp_walloc_cancel(rport->fcs->bfa, &rport->fcxp_wqe);
221 bfa_sm_set_state(rport, bfa_fcs_rport_sm_nsdisc_sending);
222 rport->ns_retries = 0;
a36c61f9 223 bfa_fcs_rport_send_nsdisc(rport, NULL);
7725ccfd
JH		 224 break;
225
226 case RPSM_EVENT_LOGO_IMP:
227 rport->pid = 0;
228 bfa_sm_set_state(rport, bfa_fcs_rport_sm_offline);
229 bfa_fcxp_walloc_cancel(rport->fcs->bfa, &rport->fcxp_wqe);
230 bfa_timer_start(rport->fcs->bfa, &rport->timer,
231 bfa_fcs_rport_timeout, rport,
232 bfa_fcs_rport_del_timeout);
233 break;
234
7725ccfd
JH		 235
236 default:
e641de37 237 bfa_sm_fault(rport->fcs, event);
7725ccfd
JH		 238 }
239}
240
5fbe25c7 241/*
a36c61f9 242 * PLOGI is being sent.
7725ccfd
JH		 243 */
244static void
245bfa_fcs_rport_sm_plogiacc_sending(struct bfa_fcs_rport_s *rport,
a36c61f9 246 enum rport_event event)
7725ccfd
JH		 247{
248 bfa_trc(rport->fcs, rport->pwwn);
249 bfa_trc(rport->fcs, rport->pid);
250 bfa_trc(rport->fcs, event);
251
252 switch (event) {
253 case RPSM_EVENT_FCXP_SENT:
254 bfa_sm_set_state(rport, bfa_fcs_rport_sm_hal_online);
255 bfa_fcs_rport_hal_online(rport);
256 break;
257
258 case RPSM_EVENT_DELETE:
259 bfa_sm_set_state(rport, bfa_fcs_rport_sm_uninit);
260 bfa_fcxp_walloc_cancel(rport->fcs->bfa, &rport->fcxp_wqe);
261 bfa_fcs_rport_free(rport);
262 break;
263
a36c61f9 264 case RPSM_EVENT_PLOGI_RCVD:
7725ccfd 265 case RPSM_EVENT_SCN:
5fbe25c7 266 /*
7725ccfd
JH		 267 * Ignore, SCN is possibly online notification.
268 */
269 break;
270
271 case RPSM_EVENT_ADDRESS_CHANGE:
272 bfa_fcxp_walloc_cancel(rport->fcs->bfa, &rport->fcxp_wqe);
273 bfa_sm_set_state(rport, bfa_fcs_rport_sm_nsdisc_sending);
274 rport->ns_retries = 0;
a36c61f9 275 bfa_fcs_rport_send_nsdisc(rport, NULL);
7725ccfd
JH		 276 break;
277
278 case RPSM_EVENT_LOGO_IMP:
279 rport->pid = 0;
280 bfa_sm_set_state(rport, bfa_fcs_rport_sm_offline);
281 bfa_fcxp_walloc_cancel(rport->fcs->bfa, &rport->fcxp_wqe);
282 bfa_timer_start(rport->fcs->bfa, &rport->timer,
283 bfa_fcs_rport_timeout, rport,
284 bfa_fcs_rport_del_timeout);
285 break;
286
287 case RPSM_EVENT_HCB_OFFLINE:
5fbe25c7 288 /*
7725ccfd
JH		 289 * Ignore BFA callback, on a PLOGI receive we call bfa offline.
290 */
291 break;
292
293 default:
e641de37 294 bfa_sm_fault(rport->fcs, event);
7725ccfd
JH		 295 }
296}
297
5fbe25c7 298/*
a36c61f9 299 * PLOGI is sent.
7725ccfd
JH		 300 */
301static void
302bfa_fcs_rport_sm_plogi_retry(struct bfa_fcs_rport_s *rport,
303 enum rport_event event)
304{
305 bfa_trc(rport->fcs, rport->pwwn);
306 bfa_trc(rport->fcs, rport->pid);
307 bfa_trc(rport->fcs, event);
308
309 switch (event) {
7725ccfd 310 case RPSM_EVENT_TIMEOUT:
a36c61f9
KG		 311 bfa_sm_set_state(rport, bfa_fcs_rport_sm_plogi_sending);
312 bfa_fcs_rport_send_plogi(rport, NULL);
7725ccfd
JH		 313 break;
314
315 case RPSM_EVENT_DELETE:
316 bfa_sm_set_state(rport, bfa_fcs_rport_sm_uninit);
317 bfa_timer_stop(&rport->timer);
318 bfa_fcs_rport_free(rport);
319 break;
320
4b5e759d 321 case RPSM_EVENT_PRLO_RCVD:
7725ccfd
JH		 322 case RPSM_EVENT_LOGO_RCVD:
323 break;
324
325 case RPSM_EVENT_PLOGI_RCVD:
326 bfa_sm_set_state(rport, bfa_fcs_rport_sm_plogiacc_sending);
327 bfa_timer_stop(&rport->timer);
328 bfa_fcs_rport_send_plogiacc(rport, NULL);
329 break;
330
331 case RPSM_EVENT_ADDRESS_CHANGE:
a36c61f9 332 case RPSM_EVENT_SCN:
7725ccfd
JH		 333 bfa_timer_stop(&rport->timer);
334 bfa_sm_set_state(rport, bfa_fcs_rport_sm_nsdisc_sending);
335 rport->ns_retries = 0;
a36c61f9 336 bfa_fcs_rport_send_nsdisc(rport, NULL);
7725ccfd
JH		 337 break;
338
339 case RPSM_EVENT_LOGO_IMP:
340 rport->pid = 0;
341 bfa_sm_set_state(rport, bfa_fcs_rport_sm_offline);
342 bfa_timer_stop(&rport->timer);
343 bfa_timer_start(rport->fcs->bfa, &rport->timer,
344 bfa_fcs_rport_timeout, rport,
345 bfa_fcs_rport_del_timeout);
346 break;
347
348 case RPSM_EVENT_PLOGI_COMP:
349 bfa_sm_set_state(rport, bfa_fcs_rport_sm_hal_online);
350 bfa_timer_stop(&rport->timer);
351 bfa_fcs_rport_hal_online(rport);
352 break;
353
354 default:
e641de37 355 bfa_sm_fault(rport->fcs, event);
7725ccfd
JH		 356 }
357}
358
5fbe25c7 359/*
a36c61f9 360 * PLOGI is sent.
7725ccfd
JH		 361 */
362static void
363bfa_fcs_rport_sm_plogi(struct bfa_fcs_rport_s *rport, enum rport_event event)
364{
365 bfa_trc(rport->fcs, rport->pwwn);
366 bfa_trc(rport->fcs, rport->pid);
367 bfa_trc(rport->fcs, event);
368
369 switch (event) {
370 case RPSM_EVENT_ACCEPTED:
371 bfa_sm_set_state(rport, bfa_fcs_rport_sm_hal_online);
372 rport->plogi_retries = 0;
373 bfa_fcs_rport_hal_online(rport);
374 break;
375
376 case RPSM_EVENT_LOGO_RCVD:
377 bfa_fcs_rport_send_logo_acc(rport);
4b5e759d
JH		 378 /*
379 * !! fall through !!
380 */
381 case RPSM_EVENT_PRLO_RCVD:
382 if (rport->prlo == BFA_TRUE)
383 bfa_fcs_rport_send_prlo_acc(rport);
384
7725ccfd
JH		 385 bfa_fcxp_discard(rport->fcxp);
386 /*
387 * !! fall through !!
388 */
389 case RPSM_EVENT_FAILED:
a36c61f9
KG		 390 if (rport->plogi_retries < BFA_FCS_RPORT_MAX_RETRIES) {
391 rport->plogi_retries++;
392 bfa_sm_set_state(rport, bfa_fcs_rport_sm_plogi_retry);
393 bfa_timer_start(rport->fcs->bfa, &rport->timer,
394 bfa_fcs_rport_timeout, rport,
395 BFA_FCS_RETRY_TIMEOUT);
396 } else {
397 bfa_stats(rport->port, rport_del_max_plogi_retry);
398 rport->pid = 0;
399 bfa_sm_set_state(rport, bfa_fcs_rport_sm_offline);
400 bfa_timer_start(rport->fcs->bfa, &rport->timer,
401 bfa_fcs_rport_timeout, rport,
402 bfa_fcs_rport_del_timeout);
403 }
404 break;
405
406 case RPSM_EVENT_PLOGI_RETRY:
407 rport->plogi_retries = 0;
7725ccfd
JH		 408 bfa_sm_set_state(rport, bfa_fcs_rport_sm_plogi_retry);
409 bfa_timer_start(rport->fcs->bfa, &rport->timer,
410 bfa_fcs_rport_timeout, rport,
a36c61f9 411 (FC_RA_TOV * 1000));
7725ccfd
JH		 412 break;
413
414 case RPSM_EVENT_LOGO_IMP:
415 rport->pid = 0;
416 bfa_sm_set_state(rport, bfa_fcs_rport_sm_offline);
417 bfa_fcxp_discard(rport->fcxp);
418 bfa_timer_start(rport->fcs->bfa, &rport->timer,
419 bfa_fcs_rport_timeout, rport,
420 bfa_fcs_rport_del_timeout);
421 break;
422
423 case RPSM_EVENT_ADDRESS_CHANGE:
a36c61f9 424 case RPSM_EVENT_SCN:
7725ccfd
JH		 425 bfa_fcxp_discard(rport->fcxp);
426 bfa_sm_set_state(rport, bfa_fcs_rport_sm_nsdisc_sending);
427 rport->ns_retries = 0;
a36c61f9 428 bfa_fcs_rport_send_nsdisc(rport, NULL);
7725ccfd
JH		 429 break;
430
431 case RPSM_EVENT_PLOGI_RCVD:
432 bfa_sm_set_state(rport, bfa_fcs_rport_sm_plogiacc_sending);
433 bfa_fcxp_discard(rport->fcxp);
434 bfa_fcs_rport_send_plogiacc(rport, NULL);
435 break;
436
7725ccfd
JH		 437 case RPSM_EVENT_DELETE:
438 bfa_sm_set_state(rport, bfa_fcs_rport_sm_uninit);
439 bfa_fcxp_discard(rport->fcxp);
440 bfa_fcs_rport_free(rport);
441 break;
442
443 case RPSM_EVENT_PLOGI_COMP:
444 bfa_sm_set_state(rport, bfa_fcs_rport_sm_hal_online);
445 bfa_fcxp_discard(rport->fcxp);
446 bfa_fcs_rport_hal_online(rport);
447 break;
448
449 default:
e641de37 450 bfa_sm_fault(rport->fcs, event);
7725ccfd
JH		 451 }
452}
453
5fbe25c7 454/*
a36c61f9
KG		 455 * PLOGI is complete. Awaiting BFA rport online callback. FC-4s
456 * are offline.
7725ccfd
JH		 457 */
458static void
459bfa_fcs_rport_sm_hal_online(struct bfa_fcs_rport_s *rport,
460 enum rport_event event)
461{
462 bfa_trc(rport->fcs, rport->pwwn);
463 bfa_trc(rport->fcs, rport->pid);
464 bfa_trc(rport->fcs, event);
465
466 switch (event) {
467 case RPSM_EVENT_HCB_ONLINE:
468 bfa_sm_set_state(rport, bfa_fcs_rport_sm_online);
469 bfa_fcs_rport_online_action(rport);
470 break;
471
4b5e759d
JH		 472 case RPSM_EVENT_PRLO_RCVD:
473 break;
474
7725ccfd
JH		 475 case RPSM_EVENT_LOGO_RCVD:
476 bfa_sm_set_state(rport, bfa_fcs_rport_sm_hcb_logorcv);
f7f73812 477 bfa_sm_send_event(rport->bfa_rport, BFA_RPORT_SM_OFFLINE);
7725ccfd
JH		 478 break;
479
480 case RPSM_EVENT_LOGO_IMP:
481 case RPSM_EVENT_ADDRESS_CHANGE:
482 bfa_sm_set_state(rport, bfa_fcs_rport_sm_hcb_offline);
f7f73812 483 bfa_sm_send_event(rport->bfa_rport, BFA_RPORT_SM_OFFLINE);
7725ccfd
JH		 484 break;
485
486 case RPSM_EVENT_PLOGI_RCVD:
487 bfa_sm_set_state(rport, bfa_fcs_rport_sm_plogiacc_sending);
f7f73812 488 bfa_sm_send_event(rport->bfa_rport, BFA_RPORT_SM_OFFLINE);
7725ccfd
JH		 489 bfa_fcs_rport_send_plogiacc(rport, NULL);
490 break;
491
492 case RPSM_EVENT_DELETE:
493 bfa_sm_set_state(rport, bfa_fcs_rport_sm_hcb_logosend);
f7f73812 494 bfa_sm_send_event(rport->bfa_rport, BFA_RPORT_SM_OFFLINE);
7725ccfd
JH		 495 break;
496
497 case RPSM_EVENT_SCN:
5fbe25c7 498 /*
7725ccfd
JH		 499 * @todo
500 * Ignore SCN - PLOGI just completed, FC-4 login should detect
501 * device failures.
502 */
503 break;
504
505 default:
e641de37 506 bfa_sm_fault(rport->fcs, event);
7725ccfd
JH		 507 }
508}
509
5fbe25c7 510/*
a36c61f9 511 * Rport is ONLINE. FC-4s active.
7725ccfd
JH		 512 */
513static void
514bfa_fcs_rport_sm_online(struct bfa_fcs_rport_s *rport, enum rport_event event)
515{
516 bfa_trc(rport->fcs, rport->pwwn);
517 bfa_trc(rport->fcs, rport->pid);
518 bfa_trc(rport->fcs, event);
519
520 switch (event) {
521 case RPSM_EVENT_SCN:
7725ccfd
JH		 522 if (bfa_fcs_fabric_is_switched(rport->port->fabric)) {
523 bfa_sm_set_state(rport,
524 bfa_fcs_rport_sm_nsquery_sending);
525 rport->ns_retries = 0;
a36c61f9 526 bfa_fcs_rport_send_nsdisc(rport, NULL);
7725ccfd
JH		 527 } else {
528 bfa_sm_set_state(rport, bfa_fcs_rport_sm_adisc_sending);
529 bfa_fcs_rport_send_adisc(rport, NULL);
530 }
531 break;
532
533 case RPSM_EVENT_PLOGI_RCVD:
534 case RPSM_EVENT_LOGO_IMP:
535 case RPSM_EVENT_ADDRESS_CHANGE:
536 bfa_sm_set_state(rport, bfa_fcs_rport_sm_fc4_offline);
537 bfa_fcs_rport_offline_action(rport);
538 break;
539
540 case RPSM_EVENT_DELETE:
541 bfa_sm_set_state(rport, bfa_fcs_rport_sm_fc4_logosend);
542 bfa_fcs_rport_offline_action(rport);
543 break;
544
545 case RPSM_EVENT_LOGO_RCVD:
4b5e759d 546 case RPSM_EVENT_PRLO_RCVD:
7725ccfd
JH		 547 bfa_sm_set_state(rport, bfa_fcs_rport_sm_fc4_logorcv);
548 bfa_fcs_rport_offline_action(rport);
549 break;
550
551 case RPSM_EVENT_PLOGI_COMP:
552 break;
553
554 default:
e641de37 555 bfa_sm_fault(rport->fcs, event);
7725ccfd
JH		 556 }
557}
558
5fbe25c7 559/*
a36c61f9
KG		 560 * An SCN event is received in ONLINE state. NS query is being sent
561 * prior to ADISC authentication with rport. FC-4s are paused.
7725ccfd
JH		 562 */
563static void
564bfa_fcs_rport_sm_nsquery_sending(struct bfa_fcs_rport_s *rport,
a36c61f9 565 enum rport_event event)
7725ccfd
JH		 566{
567 bfa_trc(rport->fcs, rport->pwwn);
568 bfa_trc(rport->fcs, rport->pid);
569 bfa_trc(rport->fcs, event);
570
571 switch (event) {
572 case RPSM_EVENT_FCXP_SENT:
573 bfa_sm_set_state(rport, bfa_fcs_rport_sm_nsquery);
574 break;
575
576 case RPSM_EVENT_DELETE:
577 bfa_sm_set_state(rport, bfa_fcs_rport_sm_fc4_logosend);
578 bfa_fcxp_walloc_cancel(rport->fcs->bfa, &rport->fcxp_wqe);
579 bfa_fcs_rport_offline_action(rport);
580 break;
581
582 case RPSM_EVENT_SCN:
5fbe25c7 583 /*
7725ccfd
JH		 584 * ignore SCN, wait for response to query itself
585 */
586 break;
587
588 case RPSM_EVENT_LOGO_RCVD:
4b5e759d 589 case RPSM_EVENT_PRLO_RCVD:
7725ccfd
JH		 590 bfa_sm_set_state(rport, bfa_fcs_rport_sm_fc4_logorcv);
591 bfa_fcxp_walloc_cancel(rport->fcs->bfa, &rport->fcxp_wqe);
592 bfa_fcs_rport_offline_action(rport);
593 break;
594
595 case RPSM_EVENT_LOGO_IMP:
596 rport->pid = 0;
597 bfa_sm_set_state(rport, bfa_fcs_rport_sm_offline);
598 bfa_fcxp_walloc_cancel(rport->fcs->bfa, &rport->fcxp_wqe);
599 bfa_timer_start(rport->fcs->bfa, &rport->timer,
600 bfa_fcs_rport_timeout, rport,
601 bfa_fcs_rport_del_timeout);
602 break;
603
604 case RPSM_EVENT_PLOGI_RCVD:
605 case RPSM_EVENT_ADDRESS_CHANGE:
606 case RPSM_EVENT_PLOGI_COMP:
607 bfa_sm_set_state(rport, bfa_fcs_rport_sm_fc4_offline);
608 bfa_fcxp_walloc_cancel(rport->fcs->bfa, &rport->fcxp_wqe);
609 bfa_fcs_rport_offline_action(rport);
610 break;
611
612 default:
e641de37 613 bfa_sm_fault(rport->fcs, event);
7725ccfd
JH		 614 }
615}
616
5fbe25c7 617/*
a36c61f9
KG		 618 * An SCN event is received in ONLINE state. NS query is sent to rport.
619 * FC-4s are paused.
7725ccfd
JH		 620 */
621static void
622bfa_fcs_rport_sm_nsquery(struct bfa_fcs_rport_s *rport, enum rport_event event)
623{
624 bfa_trc(rport->fcs, rport->pwwn);
625 bfa_trc(rport->fcs, rport->pid);
626 bfa_trc(rport->fcs, event);
627
628 switch (event) {
629 case RPSM_EVENT_ACCEPTED:
630 bfa_sm_set_state(rport, bfa_fcs_rport_sm_adisc_sending);
631 bfa_fcs_rport_send_adisc(rport, NULL);
632 break;
633
634 case RPSM_EVENT_FAILED:
635 rport->ns_retries++;
636 if (rport->ns_retries < BFA_FCS_RPORT_MAX_RETRIES) {
637 bfa_sm_set_state(rport,
638 bfa_fcs_rport_sm_nsquery_sending);
a36c61f9 639 bfa_fcs_rport_send_nsdisc(rport, NULL);
7725ccfd
JH		 640 } else {
641 bfa_sm_set_state(rport, bfa_fcs_rport_sm_fc4_offline);
642 bfa_fcs_rport_offline_action(rport);
643 }
644 break;
645
646 case RPSM_EVENT_DELETE:
647 bfa_sm_set_state(rport, bfa_fcs_rport_sm_fc4_logosend);
648 bfa_fcxp_discard(rport->fcxp);
649 bfa_fcs_rport_offline_action(rport);
650 break;
651
652 case RPSM_EVENT_SCN:
653 break;
654
655 case RPSM_EVENT_LOGO_RCVD:
4b5e759d 656 case RPSM_EVENT_PRLO_RCVD:
7725ccfd
JH		 657 bfa_sm_set_state(rport, bfa_fcs_rport_sm_fc4_logorcv);
658 bfa_fcxp_discard(rport->fcxp);
659 bfa_fcs_rport_offline_action(rport);
660 break;
661
662 case RPSM_EVENT_PLOGI_COMP:
663 case RPSM_EVENT_ADDRESS_CHANGE:
664 case RPSM_EVENT_PLOGI_RCVD:
665 case RPSM_EVENT_LOGO_IMP:
666 bfa_sm_set_state(rport, bfa_fcs_rport_sm_fc4_offline);
667 bfa_fcxp_discard(rport->fcxp);
668 bfa_fcs_rport_offline_action(rport);
669 break;
670
671 default:
e641de37 672 bfa_sm_fault(rport->fcs, event);
7725ccfd
JH		 673 }
674}
675
5fbe25c7 676/*
a36c61f9
KG		 677 * An SCN event is received in ONLINE state. ADISC is being sent for
678 * authenticating with rport. FC-4s are paused.
7725ccfd
JH		 679 */
680static void
681bfa_fcs_rport_sm_adisc_sending(struct bfa_fcs_rport_s *rport,
a36c61f9 682 enum rport_event event)
7725ccfd
JH		 683{
684 bfa_trc(rport->fcs, rport->pwwn);
685 bfa_trc(rport->fcs, rport->pid);
686 bfa_trc(rport->fcs, event);
687
688 switch (event) {
689 case RPSM_EVENT_FCXP_SENT:
690 bfa_sm_set_state(rport, bfa_fcs_rport_sm_adisc);
691 break;
692
693 case RPSM_EVENT_DELETE:
694 bfa_sm_set_state(rport, bfa_fcs_rport_sm_fc4_logosend);
695 bfa_fcxp_walloc_cancel(rport->fcs->bfa, &rport->fcxp_wqe);
696 bfa_fcs_rport_offline_action(rport);
697 break;
698
699 case RPSM_EVENT_LOGO_IMP:
700 case RPSM_EVENT_ADDRESS_CHANGE:
701 bfa_sm_set_state(rport, bfa_fcs_rport_sm_fc4_offline);
702 bfa_fcxp_walloc_cancel(rport->fcs->bfa, &rport->fcxp_wqe);
703 bfa_fcs_rport_offline_action(rport);
704 break;
705
706 case RPSM_EVENT_LOGO_RCVD:
4b5e759d 707 case RPSM_EVENT_PRLO_RCVD:
7725ccfd
JH		 708 bfa_sm_set_state(rport, bfa_fcs_rport_sm_fc4_logorcv);
709 bfa_fcxp_walloc_cancel(rport->fcs->bfa, &rport->fcxp_wqe);
710 bfa_fcs_rport_offline_action(rport);
711 break;
712
713 case RPSM_EVENT_SCN:
714 break;
715
716 case RPSM_EVENT_PLOGI_RCVD:
717 bfa_sm_set_state(rport, bfa_fcs_rport_sm_fc4_offline);
718 bfa_fcxp_walloc_cancel(rport->fcs->bfa, &rport->fcxp_wqe);
719 bfa_fcs_rport_offline_action(rport);
720 break;
721
722 default:
e641de37 723 bfa_sm_fault(rport->fcs, event);
7725ccfd
JH		 724 }
725}
726
5fbe25c7 727/*
a36c61f9
KG		 728 * An SCN event is received in ONLINE state. ADISC is to rport.
729 * FC-4s are paused.
7725ccfd
JH		 730 */
731static void
732bfa_fcs_rport_sm_adisc(struct bfa_fcs_rport_s *rport, enum rport_event event)
733{
734 bfa_trc(rport->fcs, rport->pwwn);
735 bfa_trc(rport->fcs, rport->pid);
736 bfa_trc(rport->fcs, event);
737
738 switch (event) {
739 case RPSM_EVENT_ACCEPTED:
740 bfa_sm_set_state(rport, bfa_fcs_rport_sm_online);
7725ccfd
JH		 741 break;
742
743 case RPSM_EVENT_PLOGI_RCVD:
5fbe25c7 744 /*
7725ccfd
JH		 745 * Too complex to cleanup FC-4 & rport and then acc to PLOGI.
746 * At least go offline when a PLOGI is received.
747 */
748 bfa_fcxp_discard(rport->fcxp);
749 /*
750 * !!! fall through !!!
751 */
752
753 case RPSM_EVENT_FAILED:
754 case RPSM_EVENT_ADDRESS_CHANGE:
755 bfa_sm_set_state(rport, bfa_fcs_rport_sm_fc4_offline);
756 bfa_fcs_rport_offline_action(rport);
757 break;
758
759 case RPSM_EVENT_DELETE:
760 bfa_sm_set_state(rport, bfa_fcs_rport_sm_fc4_logosend);
761 bfa_fcxp_discard(rport->fcxp);
762 bfa_fcs_rport_offline_action(rport);
763 break;
764
765 case RPSM_EVENT_SCN:
5fbe25c7 766 /*
7725ccfd
JH		 767 * already processing RSCN
768 */
769 break;
770
771 case RPSM_EVENT_LOGO_IMP:
772 bfa_sm_set_state(rport, bfa_fcs_rport_sm_fc4_offline);
773 bfa_fcxp_discard(rport->fcxp);
774 bfa_fcs_rport_offline_action(rport);
775 break;
776
777 case RPSM_EVENT_LOGO_RCVD:
4b5e759d 778 case RPSM_EVENT_PRLO_RCVD:
7725ccfd
JH		 779 bfa_sm_set_state(rport, bfa_fcs_rport_sm_fc4_logorcv);
780 bfa_fcxp_discard(rport->fcxp);
781 bfa_fcs_rport_offline_action(rport);
782 break;
783
784 default:
e641de37 785 bfa_sm_fault(rport->fcs, event);
7725ccfd
JH		 786 }
787}
788
5fbe25c7 789/*
a36c61f9 790 * Rport has sent LOGO. Awaiting FC-4 offline completion callback.
7725ccfd
JH		 791 */
792static void
793bfa_fcs_rport_sm_fc4_logorcv(struct bfa_fcs_rport_s *rport,
794 enum rport_event event)
795{
796 bfa_trc(rport->fcs, rport->pwwn);
797 bfa_trc(rport->fcs, rport->pid);
798 bfa_trc(rport->fcs, event);
799
800 switch (event) {
801 case RPSM_EVENT_FC4_OFFLINE:
802 bfa_sm_set_state(rport, bfa_fcs_rport_sm_hcb_logorcv);
f7f73812 803 bfa_sm_send_event(rport->bfa_rport, BFA_RPORT_SM_OFFLINE);
7725ccfd
JH		 804 break;
805
806 case RPSM_EVENT_DELETE:
807 bfa_sm_set_state(rport, bfa_fcs_rport_sm_fc4_logosend);
808 break;
809
810 case RPSM_EVENT_LOGO_RCVD:
4b5e759d 811 case RPSM_EVENT_PRLO_RCVD:
7725ccfd
JH		 812 case RPSM_EVENT_ADDRESS_CHANGE:
813 break;
814
815 default:
e641de37 816 bfa_sm_fault(rport->fcs, event);
7725ccfd
JH		 817 }
818}
819
5fbe25c7 820/*
a36c61f9
KG		 821 * LOGO needs to be sent to rport. Awaiting FC-4 offline completion
822 * callback.
7725ccfd
JH		 823 */
824static void
825bfa_fcs_rport_sm_fc4_logosend(struct bfa_fcs_rport_s *rport,
a36c61f9 826 enum rport_event event)
7725ccfd
JH		 827{
828 bfa_trc(rport->fcs, rport->pwwn);
829 bfa_trc(rport->fcs, rport->pid);
830 bfa_trc(rport->fcs, event);
831
832 switch (event) {
833 case RPSM_EVENT_FC4_OFFLINE:
834 bfa_sm_set_state(rport, bfa_fcs_rport_sm_hcb_logosend);
f7f73812 835 bfa_sm_send_event(rport->bfa_rport, BFA_RPORT_SM_OFFLINE);
7725ccfd
JH		 836 break;
837
838 default:
e641de37 839 bfa_sm_fault(rport->fcs, event);
7725ccfd
JH		 840 }
841}
842
5fbe25c7 843/*
a36c61f9 844 * Rport is going offline. Awaiting FC-4 offline completion callback.
7725ccfd
JH		 845 */
846static void
847bfa_fcs_rport_sm_fc4_offline(struct bfa_fcs_rport_s *rport,
848 enum rport_event event)
849{
850 bfa_trc(rport->fcs, rport->pwwn);
851 bfa_trc(rport->fcs, rport->pid);
852 bfa_trc(rport->fcs, event);
853
854 switch (event) {
855 case RPSM_EVENT_FC4_OFFLINE:
856 bfa_sm_set_state(rport, bfa_fcs_rport_sm_hcb_offline);
f7f73812 857 bfa_sm_send_event(rport->bfa_rport, BFA_RPORT_SM_OFFLINE);
7725ccfd
JH		 858 break;
859
860 case RPSM_EVENT_SCN:
861 case RPSM_EVENT_LOGO_IMP:
862 case RPSM_EVENT_LOGO_RCVD:
4b5e759d 863 case RPSM_EVENT_PRLO_RCVD:
7725ccfd 864 case RPSM_EVENT_ADDRESS_CHANGE:
5fbe25c7 865 /*
7725ccfd
JH		 866 * rport is already going offline.
867 * SCN - ignore and wait till transitioning to offline state
868 */
869 break;
870
871 case RPSM_EVENT_DELETE:
872 bfa_sm_set_state(rport, bfa_fcs_rport_sm_fc4_logosend);
873 break;
874
875 default:
e641de37 876 bfa_sm_fault(rport->fcs, event);
7725ccfd
JH		 877 }
878}
879
5fbe25c7 880/*
a36c61f9
KG		 881 * Rport is offline. FC-4s are offline. Awaiting BFA rport offline
882 * callback.
7725ccfd
JH		 883 */
884static void
885bfa_fcs_rport_sm_hcb_offline(struct bfa_fcs_rport_s *rport,
a36c61f9 886 enum rport_event event)
7725ccfd
JH		 887{
888 bfa_trc(rport->fcs, rport->pwwn);
889 bfa_trc(rport->fcs, rport->pid);
890 bfa_trc(rport->fcs, event);
891
892 switch (event) {
893 case RPSM_EVENT_HCB_OFFLINE:
894 case RPSM_EVENT_ADDRESS_CHANGE:
a36c61f9 895 if (bfa_fcs_lport_is_online(rport->port)) {
72041ed8
KG		 896 if (bfa_fcs_fabric_is_switched(rport->port->fabric)) {
897 bfa_sm_set_state(rport,
898 bfa_fcs_rport_sm_nsdisc_sending);
899 rport->ns_retries = 0;
a36c61f9 900 bfa_fcs_rport_send_nsdisc(rport, NULL);
72041ed8
KG		 901 } else {
902 bfa_sm_set_state(rport,
903 bfa_fcs_rport_sm_plogi_sending);
904 rport->plogi_retries = 0;
905 bfa_fcs_rport_send_plogi(rport, NULL);
906 }
7725ccfd
JH		 907 } else {
908 rport->pid = 0;
909 bfa_sm_set_state(rport, bfa_fcs_rport_sm_offline);
910 bfa_timer_start(rport->fcs->bfa, &rport->timer,
911 bfa_fcs_rport_timeout, rport,
912 bfa_fcs_rport_del_timeout);
913 }
914 break;
915
916 case RPSM_EVENT_DELETE:
917 bfa_sm_set_state(rport, bfa_fcs_rport_sm_uninit);
918 bfa_fcs_rport_free(rport);
919 break;
920
921 case RPSM_EVENT_SCN:
922 case RPSM_EVENT_LOGO_RCVD:
4b5e759d 923 case RPSM_EVENT_PRLO_RCVD:
5fbe25c7 924 /*
7725ccfd
JH		 925 * Ignore, already offline.
926 */
927 break;
928
929 default:
e641de37 930 bfa_sm_fault(rport->fcs, event);
7725ccfd
JH		 931 }
932}
933
5fbe25c7 934/*
a36c61f9
KG		 935 * Rport is offline. FC-4s are offline. Awaiting BFA rport offline
936 * callback to send LOGO accept.
7725ccfd
JH		 937 */
938static void
939bfa_fcs_rport_sm_hcb_logorcv(struct bfa_fcs_rport_s *rport,
940 enum rport_event event)
941{
942 bfa_trc(rport->fcs, rport->pwwn);
943 bfa_trc(rport->fcs, rport->pid);
944 bfa_trc(rport->fcs, event);
945
946 switch (event) {
947 case RPSM_EVENT_HCB_OFFLINE:
948 case RPSM_EVENT_ADDRESS_CHANGE:
4b5e759d
JH		 949 if (rport->pid && (rport->prlo == BFA_TRUE))
950 bfa_fcs_rport_send_prlo_acc(rport);
951 if (rport->pid && (rport->prlo == BFA_FALSE))
7725ccfd
JH		 952 bfa_fcs_rport_send_logo_acc(rport);
953 /*
a36c61f9
KG		 954 * If the lport is online and if the rport is not a well
955 * known address port,
956 * we try to re-discover the r-port.
7725ccfd 957 */
a36c61f9
KG		 958 if (bfa_fcs_lport_is_online(rport->port) &&
959 (!BFA_FCS_PID_IS_WKA(rport->pid))) {
7725ccfd 960 bfa_sm_set_state(rport,
a36c61f9 961 bfa_fcs_rport_sm_nsdisc_sending);
7725ccfd 962 rport->ns_retries = 0;
a36c61f9 963 bfa_fcs_rport_send_nsdisc(rport, NULL);
7725ccfd
JH		 964 } else {
965 /*
a36c61f9
KG		 966 * if it is not a well known address, reset the
967 * pid to 0.
7725ccfd
JH		 968 */
969 if (!BFA_FCS_PID_IS_WKA(rport->pid))
970 rport->pid = 0;
971 bfa_sm_set_state(rport, bfa_fcs_rport_sm_offline);
972 bfa_timer_start(rport->fcs->bfa, &rport->timer,
973 bfa_fcs_rport_timeout, rport,
974 bfa_fcs_rport_del_timeout);
975 }
976 break;
977
978 case RPSM_EVENT_DELETE:
979 bfa_sm_set_state(rport, bfa_fcs_rport_sm_hcb_logosend);
980 break;
981
982 case RPSM_EVENT_LOGO_IMP:
983 bfa_sm_set_state(rport, bfa_fcs_rport_sm_hcb_offline);
984 break;
985
986 case RPSM_EVENT_LOGO_RCVD:
4b5e759d 987 case RPSM_EVENT_PRLO_RCVD:
5fbe25c7 988 /*
7725ccfd
JH		 989 * Ignore - already processing a LOGO.
990 */
991 break;
992
993 default:
e641de37 994 bfa_sm_fault(rport->fcs, event);
7725ccfd
JH		 995 }
996}
997
5fbe25c7 998/*
a36c61f9
KG		 999 * Rport is being deleted. FC-4s are offline.
1000 * Awaiting BFA rport offline
1001 * callback to send LOGO.
7725ccfd
JH		 1002 */
1003static void
1004bfa_fcs_rport_sm_hcb_logosend(struct bfa_fcs_rport_s *rport,
a36c61f9 1005 enum rport_event event)
7725ccfd
JH		 1006{
1007 bfa_trc(rport->fcs, rport->pwwn);
1008 bfa_trc(rport->fcs, rport->pid);
1009 bfa_trc(rport->fcs, event);
1010
1011 switch (event) {
1012 case RPSM_EVENT_HCB_OFFLINE:
1013 bfa_sm_set_state(rport, bfa_fcs_rport_sm_logo_sending);
1014 bfa_fcs_rport_send_logo(rport, NULL);
1015 break;
1016
1017 case RPSM_EVENT_LOGO_RCVD:
4b5e759d 1018 case RPSM_EVENT_PRLO_RCVD:
7725ccfd
JH		 1019 case RPSM_EVENT_ADDRESS_CHANGE:
1020 break;
1021
1022 default:
e641de37 1023 bfa_sm_fault(rport->fcs, event);
7725ccfd
JH		 1024 }
1025}
1026
5fbe25c7 1027/*
a36c61f9 1028 * Rport is being deleted. FC-4s are offline. LOGO is being sent.
7725ccfd
JH		 1029 */
1030static void
1031bfa_fcs_rport_sm_logo_sending(struct bfa_fcs_rport_s *rport,
a36c61f9 1032 enum rport_event event)
7725ccfd
JH		 1033{
1034 bfa_trc(rport->fcs, rport->pwwn);
1035 bfa_trc(rport->fcs, rport->pid);
1036 bfa_trc(rport->fcs, event);
1037
1038 switch (event) {
1039 case RPSM_EVENT_FCXP_SENT:
a36c61f9 1040 /* Once LOGO is sent, we donot wait for the response */
7725ccfd
JH		 1041 bfa_sm_set_state(rport, bfa_fcs_rport_sm_uninit);
1042 bfa_fcs_rport_free(rport);
1043 break;
1044
1045 case RPSM_EVENT_SCN:
1046 case RPSM_EVENT_ADDRESS_CHANGE:
1047 break;
1048
1049 case RPSM_EVENT_LOGO_RCVD:
4b5e759d 1050 case RPSM_EVENT_PRLO_RCVD:
7725ccfd
JH		 1051 bfa_sm_set_state(rport, bfa_fcs_rport_sm_uninit);
1052 bfa_fcxp_walloc_cancel(rport->fcs->bfa, &rport->fcxp_wqe);
1053 bfa_fcs_rport_free(rport);
1054 break;
1055
1056 default:
e641de37 1057 bfa_sm_fault(rport->fcs, event);
7725ccfd
JH		 1058 }
1059}
1060
5fbe25c7 1061/*
a36c61f9
KG		 1062 * Rport is offline. FC-4s are offline. BFA rport is offline.
1063 * Timer active to delete stale rport.
7725ccfd
JH		 1064 */
1065static void
1066bfa_fcs_rport_sm_offline(struct bfa_fcs_rport_s *rport, enum rport_event event)
1067{
1068 bfa_trc(rport->fcs, rport->pwwn);
1069 bfa_trc(rport->fcs, rport->pid);
1070 bfa_trc(rport->fcs, event);
1071
1072 switch (event) {
1073 case RPSM_EVENT_TIMEOUT:
1074 bfa_sm_set_state(rport, bfa_fcs_rport_sm_uninit);
1075 bfa_fcs_rport_free(rport);
1076 break;
1077
1078 case RPSM_EVENT_SCN:
1079 case RPSM_EVENT_ADDRESS_CHANGE:
1080 bfa_sm_set_state(rport, bfa_fcs_rport_sm_nsdisc_sending);
1081 bfa_timer_stop(&rport->timer);
1082 rport->ns_retries = 0;
a36c61f9 1083 bfa_fcs_rport_send_nsdisc(rport, NULL);
7725ccfd
JH		 1084 break;
1085
1086 case RPSM_EVENT_DELETE:
1087 bfa_sm_set_state(rport, bfa_fcs_rport_sm_uninit);
1088 bfa_timer_stop(&rport->timer);
1089 bfa_fcs_rport_free(rport);
1090 break;
1091
1092 case RPSM_EVENT_PLOGI_RCVD:
1093 bfa_sm_set_state(rport, bfa_fcs_rport_sm_plogiacc_sending);
1094 bfa_timer_stop(&rport->timer);
1095 bfa_fcs_rport_send_plogiacc(rport, NULL);
1096 break;
1097
1098 case RPSM_EVENT_LOGO_RCVD:
4b5e759d 1099 case RPSM_EVENT_PRLO_RCVD:
7725ccfd
JH		 1100 case RPSM_EVENT_LOGO_IMP:
1101 break;
1102
1103 case RPSM_EVENT_PLOGI_COMP:
1104 bfa_sm_set_state(rport, bfa_fcs_rport_sm_hal_online);
1105 bfa_timer_stop(&rport->timer);
1106 bfa_fcs_rport_hal_online(rport);
1107 break;
1108
1109 case RPSM_EVENT_PLOGI_SEND:
1110 bfa_timer_stop(&rport->timer);
1111 bfa_sm_set_state(rport, bfa_fcs_rport_sm_plogi_sending);
1112 rport->plogi_retries = 0;
1113 bfa_fcs_rport_send_plogi(rport, NULL);
1114 break;
1115
1116 default:
e641de37 1117 bfa_sm_fault(rport->fcs, event);
7725ccfd
JH		 1118 }
1119}
1120
5fbe25c7 1121/*
a36c61f9 1122 * Rport address has changed. Nameserver discovery request is being sent.
7725ccfd
JH		 1123 */
1124static void
1125bfa_fcs_rport_sm_nsdisc_sending(struct bfa_fcs_rport_s *rport,
a36c61f9 1126 enum rport_event event)
7725ccfd
JH		 1127{
1128 bfa_trc(rport->fcs, rport->pwwn);
1129 bfa_trc(rport->fcs, rport->pid);
1130 bfa_trc(rport->fcs, event);
1131
1132 switch (event) {
1133 case RPSM_EVENT_FCXP_SENT:
1134 bfa_sm_set_state(rport, bfa_fcs_rport_sm_nsdisc_sent);
1135 break;
1136
1137 case RPSM_EVENT_DELETE:
1138 bfa_sm_set_state(rport, bfa_fcs_rport_sm_uninit);
1139 bfa_fcxp_walloc_cancel(rport->fcs->bfa, &rport->fcxp_wqe);
1140 bfa_fcs_rport_free(rport);
1141 break;
1142
1143 case RPSM_EVENT_PLOGI_RCVD:
1144 bfa_sm_set_state(rport, bfa_fcs_rport_sm_plogiacc_sending);
1145 bfa_fcxp_walloc_cancel(rport->fcs->bfa, &rport->fcxp_wqe);
1146 bfa_fcs_rport_send_plogiacc(rport, NULL);
1147 break;
1148
1149 case RPSM_EVENT_SCN:
1150 case RPSM_EVENT_LOGO_RCVD:
4b5e759d 1151 case RPSM_EVENT_PRLO_RCVD:
7725ccfd
JH		 1152 case RPSM_EVENT_PLOGI_SEND:
1153 break;
1154
1155 case RPSM_EVENT_ADDRESS_CHANGE:
a36c61f9 1156 rport->ns_retries = 0; /* reset the retry count */
7725ccfd
JH		 1157 break;
1158
1159 case RPSM_EVENT_LOGO_IMP:
1160 bfa_sm_set_state(rport, bfa_fcs_rport_sm_offline);
1161 bfa_fcxp_walloc_cancel(rport->fcs->bfa, &rport->fcxp_wqe);
1162 bfa_timer_start(rport->fcs->bfa, &rport->timer,
1163 bfa_fcs_rport_timeout, rport,
1164 bfa_fcs_rport_del_timeout);
1165 break;
1166
1167 case RPSM_EVENT_PLOGI_COMP:
1168 bfa_sm_set_state(rport, bfa_fcs_rport_sm_hal_online);
1169 bfa_fcxp_walloc_cancel(rport->fcs->bfa, &rport->fcxp_wqe);
1170 bfa_fcs_rport_hal_online(rport);
1171 break;
1172
1173 default:
e641de37 1174 bfa_sm_fault(rport->fcs, event);
7725ccfd
JH		 1175 }
1176}
1177
5fbe25c7 1178/*
a36c61f9 1179 * Nameserver discovery failed. Waiting for timeout to retry.
7725ccfd
JH		 1180 */
1181static void
1182bfa_fcs_rport_sm_nsdisc_retry(struct bfa_fcs_rport_s *rport,
a36c61f9 1183 enum rport_event event)
7725ccfd
JH		 1184{
1185 bfa_trc(rport->fcs, rport->pwwn);
1186 bfa_trc(rport->fcs, rport->pid);
1187 bfa_trc(rport->fcs, event);
1188
1189 switch (event) {
1190 case RPSM_EVENT_TIMEOUT:
1191 bfa_sm_set_state(rport, bfa_fcs_rport_sm_nsdisc_sending);
a36c61f9 1192 bfa_fcs_rport_send_nsdisc(rport, NULL);
7725ccfd
JH		 1193 break;
1194
1195 case RPSM_EVENT_SCN:
1196 case RPSM_EVENT_ADDRESS_CHANGE:
1197 bfa_sm_set_state(rport, bfa_fcs_rport_sm_nsdisc_sending);
1198 bfa_timer_stop(&rport->timer);
1199 rport->ns_retries = 0;
a36c61f9 1200 bfa_fcs_rport_send_nsdisc(rport, NULL);
7725ccfd
JH		 1201 break;
1202
1203 case RPSM_EVENT_DELETE:
1204 bfa_sm_set_state(rport, bfa_fcs_rport_sm_uninit);
1205 bfa_timer_stop(&rport->timer);
1206 bfa_fcs_rport_free(rport);
1207 break;
1208
1209 case RPSM_EVENT_PLOGI_RCVD:
1210 bfa_sm_set_state(rport, bfa_fcs_rport_sm_plogiacc_sending);
1211 bfa_timer_stop(&rport->timer);
1212 bfa_fcs_rport_send_plogiacc(rport, NULL);
1213 break;
1214
1215 case RPSM_EVENT_LOGO_IMP:
1216 rport->pid = 0;
1217 bfa_sm_set_state(rport, bfa_fcs_rport_sm_offline);
1218 bfa_timer_stop(&rport->timer);
1219 bfa_timer_start(rport->fcs->bfa, &rport->timer,
1220 bfa_fcs_rport_timeout, rport,
1221 bfa_fcs_rport_del_timeout);
1222 break;
1223
1224 case RPSM_EVENT_LOGO_RCVD:
1225 bfa_fcs_rport_send_logo_acc(rport);
1226 break;
4b5e759d
JH		 1227 case RPSM_EVENT_PRLO_RCVD:
1228 bfa_fcs_rport_send_prlo_acc(rport);
1229 break;
1230
7725ccfd
JH		 1231 case RPSM_EVENT_PLOGI_COMP:
1232 bfa_sm_set_state(rport, bfa_fcs_rport_sm_hal_online);
1233 bfa_timer_stop(&rport->timer);
1234 bfa_fcs_rport_hal_online(rport);
1235 break;
1236
1237 default:
e641de37 1238 bfa_sm_fault(rport->fcs, event);
7725ccfd
JH		 1239 }
1240}
1241
5fbe25c7 1242/*
a36c61f9 1243 * Rport address has changed. Nameserver discovery request is sent.
7725ccfd
JH		 1244 */
1245static void
1246bfa_fcs_rport_sm_nsdisc_sent(struct bfa_fcs_rport_s *rport,
1247 enum rport_event event)
1248{
1249 bfa_trc(rport->fcs, rport->pwwn);
1250 bfa_trc(rport->fcs, rport->pid);
1251 bfa_trc(rport->fcs, event);
1252
1253 switch (event) {
1254 case RPSM_EVENT_ACCEPTED:
1255 case RPSM_EVENT_ADDRESS_CHANGE:
1256 if (rport->pid) {
1257 bfa_sm_set_state(rport, bfa_fcs_rport_sm_plogi_sending);
1258 bfa_fcs_rport_send_plogi(rport, NULL);
1259 } else {
1260 bfa_sm_set_state(rport,
a36c61f9 1261 bfa_fcs_rport_sm_nsdisc_sending);
7725ccfd 1262 rport->ns_retries = 0;
a36c61f9 1263 bfa_fcs_rport_send_nsdisc(rport, NULL);
7725ccfd
JH		 1264 }
1265 break;
1266
1267 case RPSM_EVENT_FAILED:
1268 rport->ns_retries++;
1269 if (rport->ns_retries < BFA_FCS_RPORT_MAX_RETRIES) {
1270 bfa_sm_set_state(rport,
a36c61f9
KG		 1271 bfa_fcs_rport_sm_nsdisc_sending);
1272 bfa_fcs_rport_send_nsdisc(rport, NULL);
7725ccfd
JH		 1273 } else {
1274 rport->pid = 0;
1275 bfa_sm_set_state(rport, bfa_fcs_rport_sm_offline);
1276 bfa_timer_start(rport->fcs->bfa, &rport->timer,
1277 bfa_fcs_rport_timeout, rport,
1278 bfa_fcs_rport_del_timeout);
1279 };
1280 break;
1281
1282 case RPSM_EVENT_DELETE:
1283 bfa_sm_set_state(rport, bfa_fcs_rport_sm_uninit);
1284 bfa_fcxp_discard(rport->fcxp);
1285 bfa_fcs_rport_free(rport);
1286 break;
1287
1288 case RPSM_EVENT_PLOGI_RCVD:
1289 bfa_sm_set_state(rport, bfa_fcs_rport_sm_plogiacc_sending);
1290 bfa_fcxp_discard(rport->fcxp);
1291 bfa_fcs_rport_send_plogiacc(rport, NULL);
1292 break;
1293
1294 case RPSM_EVENT_LOGO_IMP:
1295 rport->pid = 0;
1296 bfa_sm_set_state(rport, bfa_fcs_rport_sm_offline);
1297 bfa_fcxp_discard(rport->fcxp);
1298 bfa_timer_start(rport->fcs->bfa, &rport->timer,
1299 bfa_fcs_rport_timeout, rport,
1300 bfa_fcs_rport_del_timeout);
1301 break;
1302
a36c61f9 1303
4b5e759d
JH		 1304 case RPSM_EVENT_PRLO_RCVD:
1305 bfa_fcs_rport_send_prlo_acc(rport);
1306 break;
7725ccfd 1307 case RPSM_EVENT_SCN:
5fbe25c7 1308 /*
7725ccfd
JH		 1309 * ignore, wait for NS query response
1310 */
1311 break;
1312
1313 case RPSM_EVENT_LOGO_RCVD:
5fbe25c7 1314 /*
7725ccfd
JH		 1315 * Not logged-in yet. Accept LOGO.
1316 */
1317 bfa_fcs_rport_send_logo_acc(rport);
1318 break;
1319
1320 case RPSM_EVENT_PLOGI_COMP:
1321 bfa_sm_set_state(rport, bfa_fcs_rport_sm_hal_online);
1322 bfa_fcxp_discard(rport->fcxp);
1323 bfa_fcs_rport_hal_online(rport);
1324 break;
1325
1326 default:
e641de37 1327 bfa_sm_fault(rport->fcs, event);
7725ccfd
JH		 1328 }
1329}
1330
1331
1332
5fbe25c7 1333/*
7725ccfd
JH		 1334 * fcs_rport_private FCS RPORT provate functions
1335 */
1336
1337static void
1338bfa_fcs_rport_send_plogi(void *rport_cbarg, struct bfa_fcxp_s *fcxp_alloced)
1339{
1340 struct bfa_fcs_rport_s *rport = rport_cbarg;
a36c61f9
KG		 1341 struct bfa_fcs_lport_s *port = rport->port;
1342 struct fchs_s fchs;
1343 int len;
7725ccfd
JH		 1344 struct bfa_fcxp_s *fcxp;
1345
1346 bfa_trc(rport->fcs, rport->pwwn);
1347
1348 fcxp = fcxp_alloced ? fcxp_alloced : bfa_fcs_fcxp_alloc(port->fcs);
1349 if (!fcxp) {
a36c61f9
KG		 1350 bfa_fcs_fcxp_alloc_wait(port->fcs->bfa, &rport->fcxp_wqe,
1351 bfa_fcs_rport_send_plogi, rport);
7725ccfd
JH		 1352 return;
1353 }
1354 rport->fcxp = fcxp;
1355
1356 len = fc_plogi_build(&fchs, bfa_fcxp_get_reqbuf(fcxp), rport->pid,
a36c61f9
KG		 1357 bfa_fcs_lport_get_fcid(port), 0,
1358 port->port_cfg.pwwn, port->port_cfg.nwwn,
1359 bfa_fcport_get_maxfrsize(port->fcs->bfa));
7725ccfd
JH		 1360
1361 bfa_fcxp_send(fcxp, NULL, port->fabric->vf_id, port->lp_tag, BFA_FALSE,
a36c61f9
KG		 1362 FC_CLASS_3, len, &fchs, bfa_fcs_rport_plogi_response,
1363 (void *)rport, FC_MAX_PDUSZ, FC_ELS_TOV);
7725ccfd
JH		 1364
1365 rport->stats.plogis++;
1366 bfa_sm_send_event(rport, RPSM_EVENT_FCXP_SENT);
1367}
1368
1369static void
1370bfa_fcs_rport_plogi_response(void *fcsarg, struct bfa_fcxp_s *fcxp, void *cbarg,
a36c61f9
KG		 1371 bfa_status_t req_status, u32 rsp_len,
1372 u32 resid_len, struct fchs_s *rsp_fchs)
7725ccfd 1373{
a36c61f9 1374 struct bfa_fcs_rport_s *rport = (struct bfa_fcs_rport_s *) cbarg;
7725ccfd
JH		 1375 struct fc_logi_s *plogi_rsp;
1376 struct fc_ls_rjt_s *ls_rjt;
1377 struct bfa_fcs_rport_s *twin;
a36c61f9 1378 struct list_head *qe;
7725ccfd
JH		 1379
1380 bfa_trc(rport->fcs, rport->pwwn);
1381
1382 /*
1383 * Sanity Checks
1384 */
1385 if (req_status != BFA_STATUS_OK) {
1386 bfa_trc(rport->fcs, req_status);
1387 rport->stats.plogi_failed++;
1388 bfa_sm_send_event(rport, RPSM_EVENT_FAILED);
1389 return;
1390 }
1391
1392 plogi_rsp = (struct fc_logi_s *) BFA_FCXP_RSP_PLD(fcxp);
1393
5fbe25c7 1394 /*
7725ccfd
JH		 1395 * Check for failure first.
1396 */
1397 if (plogi_rsp->els_cmd.els_code != FC_ELS_ACC) {
1398 ls_rjt = (struct fc_ls_rjt_s *) BFA_FCXP_RSP_PLD(fcxp);
1399
1400 bfa_trc(rport->fcs, ls_rjt->reason_code);
1401 bfa_trc(rport->fcs, ls_rjt->reason_code_expl);
1402
a36c61f9
KG		 1403 if ((ls_rjt->reason_code == FC_LS_RJT_RSN_UNABLE_TO_PERF_CMD) &&
1404 (ls_rjt->reason_code_expl == FC_LS_RJT_EXP_INSUFF_RES)) {
1405 rport->stats.rjt_insuff_res++;
1406 bfa_sm_send_event(rport, RPSM_EVENT_PLOGI_RETRY);
1407 return;
1408 }
1409
7725ccfd
JH		 1410 rport->stats.plogi_rejects++;
1411 bfa_sm_send_event(rport, RPSM_EVENT_FAILED);
1412 return;
1413 }
1414
5fbe25c7 1415 /*
7725ccfd
JH		 1416 * PLOGI is complete. Make sure this device is not one of the known
1417 * device with a new FC port address.
1418 */
1419 list_for_each(qe, &rport->port->rport_q) {
a36c61f9 1420 twin = (struct bfa_fcs_rport_s *) qe;
7725ccfd
JH		 1421 if (twin == rport)
1422 continue;
1423 if (!rport->pwwn && (plogi_rsp->port_name == twin->pwwn)) {
1424 bfa_trc(rport->fcs, twin->pid);
1425 bfa_trc(rport->fcs, rport->pid);
1426
a36c61f9
KG		 1427 /* Update plogi stats in twin */
1428 twin->stats.plogis += rport->stats.plogis;
1429 twin->stats.plogi_rejects +=
1430 rport->stats.plogi_rejects;
1431 twin->stats.plogi_timeouts +=
1432 rport->stats.plogi_timeouts;
1433 twin->stats.plogi_failed +=
1434 rport->stats.plogi_failed;
1435 twin->stats.plogi_rcvd += rport->stats.plogi_rcvd;
7725ccfd
JH		 1436 twin->stats.plogi_accs++;
1437
f7f73812 1438 bfa_sm_send_event(rport, RPSM_EVENT_DELETE);
7725ccfd
JH		 1439
1440 bfa_fcs_rport_update(twin, plogi_rsp);
1441 twin->pid = rsp_fchs->s_id;
1442 bfa_sm_send_event(twin, RPSM_EVENT_PLOGI_COMP);
1443 return;
1444 }
1445 }
1446
5fbe25c7 1447 /*
7725ccfd
JH		 1448 * Normal login path -- no evil twins.
1449 */
1450 rport->stats.plogi_accs++;
1451 bfa_fcs_rport_update(rport, plogi_rsp);
1452 bfa_sm_send_event(rport, RPSM_EVENT_ACCEPTED);
1453}
1454
1455static void
1456bfa_fcs_rport_send_plogiacc(void *rport_cbarg, struct bfa_fcxp_s *fcxp_alloced)
1457{
1458 struct bfa_fcs_rport_s *rport = rport_cbarg;
a36c61f9
KG		 1459 struct bfa_fcs_lport_s *port = rport->port;
1460 struct fchs_s fchs;
1461 int len;
7725ccfd
JH		 1462 struct bfa_fcxp_s *fcxp;
1463
1464 bfa_trc(rport->fcs, rport->pwwn);
1465 bfa_trc(rport->fcs, rport->reply_oxid);
1466
1467 fcxp = fcxp_alloced ? fcxp_alloced : bfa_fcs_fcxp_alloc(port->fcs);
1468 if (!fcxp) {
a36c61f9
KG		 1469 bfa_fcs_fcxp_alloc_wait(port->fcs->bfa, &rport->fcxp_wqe,
1470 bfa_fcs_rport_send_plogiacc, rport);
7725ccfd
JH		 1471 return;
1472 }
1473 rport->fcxp = fcxp;
1474
a36c61f9
KG		 1475 len = fc_plogi_acc_build(&fchs, bfa_fcxp_get_reqbuf(fcxp),
1476 rport->pid, bfa_fcs_lport_get_fcid(port),
1477 rport->reply_oxid, port->port_cfg.pwwn,
1478 port->port_cfg.nwwn,
1c8a4c37 1479 bfa_fcport_get_maxfrsize(port->fcs->bfa));
7725ccfd
JH		 1480
1481 bfa_fcxp_send(fcxp, NULL, port->fabric->vf_id, port->lp_tag, BFA_FALSE,
a36c61f9 1482 FC_CLASS_3, len, &fchs, NULL, NULL, FC_MAX_PDUSZ, 0);
7725ccfd
JH		 1483
1484 bfa_sm_send_event(rport, RPSM_EVENT_FCXP_SENT);
1485}
1486
1487static void
1488bfa_fcs_rport_send_adisc(void *rport_cbarg, struct bfa_fcxp_s *fcxp_alloced)
1489{
1490 struct bfa_fcs_rport_s *rport = rport_cbarg;
a36c61f9
KG		 1491 struct bfa_fcs_lport_s *port = rport->port;
1492 struct fchs_s fchs;
1493 int len;
7725ccfd
JH		 1494 struct bfa_fcxp_s *fcxp;
1495
1496 bfa_trc(rport->fcs, rport->pwwn);
1497
1498 fcxp = fcxp_alloced ? fcxp_alloced : bfa_fcs_fcxp_alloc(port->fcs);
1499 if (!fcxp) {
a36c61f9
KG		 1500 bfa_fcs_fcxp_alloc_wait(port->fcs->bfa, &rport->fcxp_wqe,
1501 bfa_fcs_rport_send_adisc, rport);
7725ccfd
JH		 1502 return;
1503 }
1504 rport->fcxp = fcxp;
1505
1506 len = fc_adisc_build(&fchs, bfa_fcxp_get_reqbuf(fcxp), rport->pid,
a36c61f9
KG		 1507 bfa_fcs_lport_get_fcid(port), 0,
1508 port->port_cfg.pwwn, port->port_cfg.nwwn);
7725ccfd
JH		 1509
1510 bfa_fcxp_send(fcxp, NULL, port->fabric->vf_id, port->lp_tag, BFA_FALSE,
a36c61f9
KG		 1511 FC_CLASS_3, len, &fchs, bfa_fcs_rport_adisc_response,
1512 rport, FC_MAX_PDUSZ, FC_ELS_TOV);
7725ccfd
JH		 1513
1514 rport->stats.adisc_sent++;
1515 bfa_sm_send_event(rport, RPSM_EVENT_FCXP_SENT);
1516}
1517
1518static void
1519bfa_fcs_rport_adisc_response(void *fcsarg, struct bfa_fcxp_s *fcxp, void *cbarg,
a36c61f9
KG		 1520 bfa_status_t req_status, u32 rsp_len,
1521 u32 resid_len, struct fchs_s *rsp_fchs)
7725ccfd 1522{
a36c61f9
KG		 1523 struct bfa_fcs_rport_s *rport = (struct bfa_fcs_rport_s *) cbarg;
1524 void *pld = bfa_fcxp_get_rspbuf(fcxp);
1525 struct fc_ls_rjt_s *ls_rjt;
7725ccfd
JH		 1526
1527 if (req_status != BFA_STATUS_OK) {
1528 bfa_trc(rport->fcs, req_status);
1529 rport->stats.adisc_failed++;
1530 bfa_sm_send_event(rport, RPSM_EVENT_FAILED);
1531 return;
1532 }
1533
1534 if (fc_adisc_rsp_parse((struct fc_adisc_s *)pld, rsp_len, rport->pwwn,
a36c61f9 1535 rport->nwwn) == FC_PARSE_OK) {
7725ccfd
JH		 1536 rport->stats.adisc_accs++;
1537 bfa_sm_send_event(rport, RPSM_EVENT_ACCEPTED);
1538 return;
1539 }
1540
1541 rport->stats.adisc_rejects++;
1542 ls_rjt = pld;
1543 bfa_trc(rport->fcs, ls_rjt->els_cmd.els_code);
1544 bfa_trc(rport->fcs, ls_rjt->reason_code);
1545 bfa_trc(rport->fcs, ls_rjt->reason_code_expl);
1546 bfa_sm_send_event(rport, RPSM_EVENT_FAILED);
1547}
1548
1549static void
a36c61f9 1550bfa_fcs_rport_send_nsdisc(void *rport_cbarg, struct bfa_fcxp_s *fcxp_alloced)
7725ccfd
JH		 1551{
1552 struct bfa_fcs_rport_s *rport = rport_cbarg;
a36c61f9
KG		 1553 struct bfa_fcs_lport_s *port = rport->port;
1554 struct fchs_s fchs;
7725ccfd 1555 struct bfa_fcxp_s *fcxp;
a36c61f9
KG		 1556 int len;
1557 bfa_cb_fcxp_send_t cbfn;
7725ccfd
JH		 1558
1559 bfa_trc(rport->fcs, rport->pid);
1560
1561 fcxp = fcxp_alloced ? fcxp_alloced : bfa_fcs_fcxp_alloc(port->fcs);
1562 if (!fcxp) {
a36c61f9
KG		 1563 bfa_fcs_fcxp_alloc_wait(port->fcs->bfa, &rport->fcxp_wqe,
1564 bfa_fcs_rport_send_nsdisc, rport);
7725ccfd
JH		 1565 return;
1566 }
1567 rport->fcxp = fcxp;
1568
a36c61f9
KG		 1569 if (rport->pwwn) {
1570 len = fc_gidpn_build(&fchs, bfa_fcxp_get_reqbuf(fcxp),
1571 bfa_fcs_lport_get_fcid(port), 0, rport->pwwn);
1572 cbfn = bfa_fcs_rport_gidpn_response;
1573 } else {
1574 len = fc_gpnid_build(&fchs, bfa_fcxp_get_reqbuf(fcxp),
1575 bfa_fcs_lport_get_fcid(port), 0, rport->pid);
1576 cbfn = bfa_fcs_rport_gpnid_response;
1577 }
7725ccfd
JH		 1578
1579 bfa_fcxp_send(fcxp, NULL, port->fabric->vf_id, port->lp_tag, BFA_FALSE,
a36c61f9
KG		 1580 FC_CLASS_3, len, &fchs, cbfn,
1581 (void *)rport, FC_MAX_PDUSZ, FC_FCCT_TOV);
7725ccfd
JH		 1582
1583 bfa_sm_send_event(rport, RPSM_EVENT_FCXP_SENT);
1584}
1585
1586static void
1587bfa_fcs_rport_gidpn_response(void *fcsarg, struct bfa_fcxp_s *fcxp, void *cbarg,
a36c61f9
KG		 1588 bfa_status_t req_status, u32 rsp_len,
1589 u32 resid_len, struct fchs_s *rsp_fchs)
7725ccfd 1590{
a36c61f9
KG		 1591 struct bfa_fcs_rport_s *rport = (struct bfa_fcs_rport_s *) cbarg;
1592 struct ct_hdr_s *cthdr;
7725ccfd 1593 struct fcgs_gidpn_resp_s *gidpn_rsp;
a36c61f9
KG		 1594 struct bfa_fcs_rport_s *twin;
1595 struct list_head *qe;
7725ccfd
JH		 1596
1597 bfa_trc(rport->fcs, rport->pwwn);
1598
1599 cthdr = (struct ct_hdr_s *) BFA_FCXP_RSP_PLD(fcxp);
ba816ea8 1600 cthdr->cmd_rsp_code = be16_to_cpu(cthdr->cmd_rsp_code);
7725ccfd
JH		 1601
1602 if (cthdr->cmd_rsp_code == CT_RSP_ACCEPT) {
a36c61f9 1603 /* Check if the pid is the same as before. */
7725ccfd
JH		 1604 gidpn_rsp = (struct fcgs_gidpn_resp_s *) (cthdr + 1);
1605
1606 if (gidpn_rsp->dap == rport->pid) {
a36c61f9 1607 /* Device is online */
7725ccfd
JH		 1608 bfa_sm_send_event(rport, RPSM_EVENT_ACCEPTED);
1609 } else {
1610 /*
a36c61f9
KG		 1611 * Device's PID has changed. We need to cleanup
1612 * and re-login. If there is another device with
1613 * the the newly discovered pid, send an scn notice
1614 * so that its new pid can be discovered.
7725ccfd
JH		 1615 */
1616 list_for_each(qe, &rport->port->rport_q) {
a36c61f9 1617 twin = (struct bfa_fcs_rport_s *) qe;
7725ccfd
JH		 1618 if (twin == rport)
1619 continue;
1620 if (gidpn_rsp->dap == twin->pid) {
1621 bfa_trc(rport->fcs, twin->pid);
1622 bfa_trc(rport->fcs, rport->pid);
1623
1624 twin->pid = 0;
1625 bfa_sm_send_event(twin,
a36c61f9 1626 RPSM_EVENT_ADDRESS_CHANGE);
7725ccfd
JH		 1627 }
1628 }
1629 rport->pid = gidpn_rsp->dap;
1630 bfa_sm_send_event(rport, RPSM_EVENT_ADDRESS_CHANGE);
1631 }
1632 return;
1633 }
1634
1635 /*
1636 * Reject Response
1637 */
1638 switch (cthdr->reason_code) {
1639 case CT_RSN_LOGICAL_BUSY:
1640 /*
1641 * Need to retry
1642 */
1643 bfa_sm_send_event(rport, RPSM_EVENT_TIMEOUT);
1644 break;
1645
1646 case CT_RSN_UNABLE_TO_PERF:
1647 /*
1648 * device doesn't exist : Start timer to cleanup this later.
1649 */
1650 bfa_sm_send_event(rport, RPSM_EVENT_FAILED);
1651 break;
1652
1653 default:
1654 bfa_sm_send_event(rport, RPSM_EVENT_FAILED);
1655 break;
1656 }
1657}
1658
a36c61f9
KG		 1659static void
1660bfa_fcs_rport_gpnid_response(void *fcsarg, struct bfa_fcxp_s *fcxp, void *cbarg,
1661 bfa_status_t req_status, u32 rsp_len,
1662 u32 resid_len, struct fchs_s *rsp_fchs)
1663{
1664 struct bfa_fcs_rport_s *rport = (struct bfa_fcs_rport_s *) cbarg;
1665 struct ct_hdr_s *cthdr;
1666
1667 bfa_trc(rport->fcs, rport->pwwn);
1668
1669 cthdr = (struct ct_hdr_s *) BFA_FCXP_RSP_PLD(fcxp);
ba816ea8 1670 cthdr->cmd_rsp_code = be16_to_cpu(cthdr->cmd_rsp_code);
a36c61f9
KG		 1671
1672 if (cthdr->cmd_rsp_code == CT_RSP_ACCEPT) {
1673 bfa_sm_send_event(rport, RPSM_EVENT_ACCEPTED);
1674 return;
1675 }
1676
1677 /*
1678 * Reject Response
1679 */
1680 switch (cthdr->reason_code) {
1681 case CT_RSN_LOGICAL_BUSY:
1682 /*
1683 * Need to retry
1684 */
1685 bfa_sm_send_event(rport, RPSM_EVENT_TIMEOUT);
1686 break;
1687
1688 case CT_RSN_UNABLE_TO_PERF:
1689 /*
1690 * device doesn't exist : Start timer to cleanup this later.
1691 */
1692 bfa_sm_send_event(rport, RPSM_EVENT_FAILED);
1693 break;
1694
1695 default:
1696 bfa_sm_send_event(rport, RPSM_EVENT_FAILED);
1697 break;
1698 }
1699}
1700
5fbe25c7 1701/*
a36c61f9 1702 * Called to send a logout to the rport.
7725ccfd
JH		 1703 */
1704static void
1705bfa_fcs_rport_send_logo(void *rport_cbarg, struct bfa_fcxp_s *fcxp_alloced)
1706{
1707 struct bfa_fcs_rport_s *rport = rport_cbarg;
a36c61f9
KG		 1708 struct bfa_fcs_lport_s *port;
1709 struct fchs_s fchs;
7725ccfd 1710 struct bfa_fcxp_s *fcxp;
a36c61f9 1711 u16 len;
7725ccfd
JH		 1712
1713 bfa_trc(rport->fcs, rport->pid);
1714
1715 port = rport->port;
1716
1717 fcxp = fcxp_alloced ? fcxp_alloced : bfa_fcs_fcxp_alloc(port->fcs);
1718 if (!fcxp) {
a36c61f9
KG		 1719 bfa_fcs_fcxp_alloc_wait(port->fcs->bfa, &rport->fcxp_wqe,
1720 bfa_fcs_rport_send_logo, rport);
7725ccfd
JH		 1721 return;
1722 }
1723 rport->fcxp = fcxp;
1724
1725 len = fc_logo_build(&fchs, bfa_fcxp_get_reqbuf(fcxp), rport->pid,
a36c61f9
KG		 1726 bfa_fcs_lport_get_fcid(port), 0,
1727 bfa_fcs_lport_get_pwwn(port));
7725ccfd
JH		 1728
1729 bfa_fcxp_send(fcxp, NULL, port->fabric->vf_id, port->lp_tag, BFA_FALSE,
a36c61f9
KG		 1730 FC_CLASS_3, len, &fchs, NULL,
1731 rport, FC_MAX_PDUSZ, FC_ELS_TOV);
7725ccfd
JH		 1732
1733 rport->stats.logos++;
1734 bfa_fcxp_discard(rport->fcxp);
1735 bfa_sm_send_event(rport, RPSM_EVENT_FCXP_SENT);
1736}
1737
5fbe25c7 1738/*
a36c61f9 1739 * Send ACC for a LOGO received.
7725ccfd
JH		 1740 */
1741static void
1742bfa_fcs_rport_send_logo_acc(void *rport_cbarg)
1743{
1744 struct bfa_fcs_rport_s *rport = rport_cbarg;
a36c61f9
KG		 1745 struct bfa_fcs_lport_s *port;
1746 struct fchs_s fchs;
7725ccfd 1747 struct bfa_fcxp_s *fcxp;
a36c61f9 1748 u16 len;
7725ccfd
JH		 1749
1750 bfa_trc(rport->fcs, rport->pid);
1751
1752 port = rport->port;
1753
1754 fcxp = bfa_fcs_fcxp_alloc(port->fcs);
1755 if (!fcxp)
1756 return;
1757
1758 rport->stats.logo_rcvd++;
a36c61f9
KG		 1759 len = fc_logo_acc_build(&fchs, bfa_fcxp_get_reqbuf(fcxp),
1760 rport->pid, bfa_fcs_lport_get_fcid(port),
1761 rport->reply_oxid);
7725ccfd
JH		 1762
1763 bfa_fcxp_send(fcxp, NULL, port->fabric->vf_id, port->lp_tag, BFA_FALSE,
a36c61f9 1764 FC_CLASS_3, len, &fchs, NULL, NULL, FC_MAX_PDUSZ, 0);
7725ccfd
JH		 1765}
1766
5fbe25c7 1767/*
a36c61f9
KG		 1768 * brief
1769 * This routine will be called by bfa_timer on timer timeouts.
7725ccfd 1770 *
a36c61f9
KG		 1771 * param[in] rport - pointer to bfa_fcs_lport_ns_t.
1772 * param[out] rport_status - pointer to return vport status in
7725ccfd 1773 *
a36c61f9
KG		 1774 * return
1775 * void
7725ccfd 1776 *
a36c61f9 1777 * Special Considerations:
7725ccfd 1778 *
a36c61f9 1779 * note
7725ccfd
JH		 1780 */
1781static void
1782bfa_fcs_rport_timeout(void *arg)
1783{
a36c61f9 1784 struct bfa_fcs_rport_s *rport = (struct bfa_fcs_rport_s *) arg;
7725ccfd
JH		 1785
1786 rport->stats.plogi_timeouts++;
a36c61f9 1787 bfa_stats(rport->port, rport_plogi_timeouts);
7725ccfd
JH		 1788 bfa_sm_send_event(rport, RPSM_EVENT_TIMEOUT);
1789}
1790
1791static void
1792bfa_fcs_rport_process_prli(struct bfa_fcs_rport_s *rport,
1793 struct fchs_s *rx_fchs, u16 len)
1794{
1795 struct bfa_fcxp_s *fcxp;
a36c61f9
KG		 1796 struct fchs_s fchs;
1797 struct bfa_fcs_lport_s *port = rport->port;
1798 struct fc_prli_s *prli;
7725ccfd
JH		 1799
1800 bfa_trc(port->fcs, rx_fchs->s_id);
1801 bfa_trc(port->fcs, rx_fchs->d_id);
1802
1803 rport->stats.prli_rcvd++;
1804
7725ccfd 1805 /*
a36c61f9 1806 * We are in Initiator Mode
7725ccfd
JH		 1807 */
1808 prli = (struct fc_prli_s *) (rx_fchs + 1);
1809
a36c61f9 1810 if (prli->parampage.servparams.target) {
7725ccfd 1811 /*
a36c61f9
KG		 1812 * PRLI from a target ?
1813 * Send the Acc.
1814 * PRLI sent by us will be used to transition the IT nexus,
1815 * once the response is received from the target.
7725ccfd
JH		 1816 */
1817 bfa_trc(port->fcs, rx_fchs->s_id);
1818 rport->scsi_function = BFA_RPORT_TARGET;
a36c61f9
KG		 1819 } else {
1820 bfa_trc(rport->fcs, prli->parampage.type);
1821 rport->scsi_function = BFA_RPORT_INITIATOR;
1822 bfa_fcs_itnim_is_initiator(rport->itnim);
7725ccfd
JH		 1823 }
1824
1825 fcxp = bfa_fcs_fcxp_alloc(port->fcs);
1826 if (!fcxp)
1827 return;
1828
a36c61f9
KG		 1829 len = fc_prli_acc_build(&fchs, bfa_fcxp_get_reqbuf(fcxp),
1830 rx_fchs->s_id, bfa_fcs_lport_get_fcid(port),
1831 rx_fchs->ox_id, port->port_cfg.roles);
7725ccfd
JH		 1832
1833 bfa_fcxp_send(fcxp, NULL, port->fabric->vf_id, port->lp_tag, BFA_FALSE,
a36c61f9 1834 FC_CLASS_3, len, &fchs, NULL, NULL, FC_MAX_PDUSZ, 0);
7725ccfd
JH		 1835}
1836
1837static void
1838bfa_fcs_rport_process_rpsc(struct bfa_fcs_rport_s *rport,
1839 struct fchs_s *rx_fchs, u16 len)
1840{
1841 struct bfa_fcxp_s *fcxp;
a36c61f9
KG		 1842 struct fchs_s fchs;
1843 struct bfa_fcs_lport_s *port = rport->port;
7725ccfd 1844 struct fc_rpsc_speed_info_s speeds;
a36c61f9 1845 struct bfa_port_attr_s pport_attr;
7725ccfd
JH		 1846
1847 bfa_trc(port->fcs, rx_fchs->s_id);
1848 bfa_trc(port->fcs, rx_fchs->d_id);
1849
1850 rport->stats.rpsc_rcvd++;
1851 speeds.port_speed_cap =
1852 RPSC_SPEED_CAP_1G | RPSC_SPEED_CAP_2G | RPSC_SPEED_CAP_4G |
1853 RPSC_SPEED_CAP_8G;
1854
1855 /*
1856 * get curent speed from pport attributes from BFA
1857 */
1c8a4c37 1858 bfa_fcport_get_attr(port->fcs->bfa, &pport_attr);
7725ccfd
JH		 1859
1860 speeds.port_op_speed = fc_bfa_speed_to_rpsc_operspeed(pport_attr.speed);
1861
1862 fcxp = bfa_fcs_fcxp_alloc(port->fcs);
1863 if (!fcxp)
1864 return;
1865
a36c61f9
KG		 1866 len = fc_rpsc_acc_build(&fchs, bfa_fcxp_get_reqbuf(fcxp),
1867 rx_fchs->s_id, bfa_fcs_lport_get_fcid(port),
1868 rx_fchs->ox_id, &speeds);
7725ccfd
JH		 1869
1870 bfa_fcxp_send(fcxp, NULL, port->fabric->vf_id, port->lp_tag, BFA_FALSE,
a36c61f9 1871 FC_CLASS_3, len, &fchs, NULL, NULL, FC_MAX_PDUSZ, 0);
7725ccfd
JH		 1872}
1873
1874static void
1875bfa_fcs_rport_process_adisc(struct bfa_fcs_rport_s *rport,
1876 struct fchs_s *rx_fchs, u16 len)
1877{
1878 struct bfa_fcxp_s *fcxp;
a36c61f9
KG		 1879 struct fchs_s fchs;
1880 struct bfa_fcs_lport_s *port = rport->port;
1881 struct fc_adisc_s *adisc;
7725ccfd
JH		 1882
1883 bfa_trc(port->fcs, rx_fchs->s_id);
1884 bfa_trc(port->fcs, rx_fchs->d_id);
1885
1886 rport->stats.adisc_rcvd++;
1887
7725ccfd
JH		 1888 adisc = (struct fc_adisc_s *) (rx_fchs + 1);
1889
1890 /*
a36c61f9
KG		 1891 * Accept if the itnim for this rport is online.
1892 * Else reject the ADISC.
7725ccfd
JH		 1893 */
1894 if (bfa_fcs_itnim_get_online_state(rport->itnim) == BFA_STATUS_OK) {
1895
1896 fcxp = bfa_fcs_fcxp_alloc(port->fcs);
1897 if (!fcxp)
1898 return;
1899
1900 len = fc_adisc_acc_build(&fchs, bfa_fcxp_get_reqbuf(fcxp),
a36c61f9
KG		 1901 rx_fchs->s_id, bfa_fcs_lport_get_fcid(port),
1902 rx_fchs->ox_id, port->port_cfg.pwwn,
1903 port->port_cfg.nwwn);
7725ccfd
JH		 1904
1905 bfa_fcxp_send(fcxp, NULL, port->fabric->vf_id, port->lp_tag,
a36c61f9
KG		 1906 BFA_FALSE, FC_CLASS_3, len, &fchs, NULL, NULL,
1907 FC_MAX_PDUSZ, 0);
7725ccfd
JH		 1908 } else {
1909 rport->stats.adisc_rejected++;
1910 bfa_fcs_rport_send_ls_rjt(rport, rx_fchs,
1911 FC_LS_RJT_RSN_UNABLE_TO_PERF_CMD,
1912 FC_LS_RJT_EXP_LOGIN_REQUIRED);
1913 }
7725ccfd
JH		 1914}
1915
1916static void
1917bfa_fcs_rport_hal_online(struct bfa_fcs_rport_s *rport)
1918{
a36c61f9 1919 struct bfa_fcs_lport_s *port = rport->port;
7725ccfd
JH		 1920 struct bfa_rport_info_s rport_info;
1921
1922 rport_info.pid = rport->pid;
1923 rport_info.local_pid = port->pid;
1924 rport_info.lp_tag = port->lp_tag;
1925 rport_info.vf_id = port->fabric->vf_id;
1926 rport_info.vf_en = port->fabric->is_vf;
1927 rport_info.fc_class = rport->fc_cos;
1928 rport_info.cisc = rport->cisc;
1929 rport_info.max_frmsz = rport->maxfrsize;
1930 bfa_rport_online(rport->bfa_rport, &rport_info);
1931}
1932
7725ccfd 1933static struct bfa_fcs_rport_s *
a36c61f9 1934bfa_fcs_rport_alloc(struct bfa_fcs_lport_s *port, wwn_t pwwn, u32 rpid)
7725ccfd 1935{
a36c61f9 1936 struct bfa_fcs_s *fcs = port->fcs;
7725ccfd 1937 struct bfa_fcs_rport_s *rport;
a36c61f9 1938 struct bfad_rport_s *rport_drv;
7725ccfd 1939
5fbe25c7 1940 /*
7725ccfd
JH		 1941 * allocate rport
1942 */
1943 if (bfa_fcb_rport_alloc(fcs->bfad, &rport, &rport_drv)
a36c61f9 1944 != BFA_STATUS_OK) {
7725ccfd
JH		 1945 bfa_trc(fcs, rpid);
1946 return NULL;
1947 }
1948
1949 /*
1950 * Initialize r-port
1951 */
1952 rport->port = port;
1953 rport->fcs = fcs;
1954 rport->rp_drv = rport_drv;
1955 rport->pid = rpid;
1956 rport->pwwn = pwwn;
1957
5fbe25c7 1958 /*
7725ccfd
JH		 1959 * allocate BFA rport
1960 */
1961 rport->bfa_rport = bfa_rport_create(port->fcs->bfa, rport);
1962 if (!rport->bfa_rport) {
1963 bfa_trc(fcs, rpid);
1964 kfree(rport_drv);
1965 return NULL;
1966 }
1967
5fbe25c7 1968 /*
7725ccfd
JH		 1969 * allocate FC-4s
1970 */
a36c61f9 1971 bfa_assert(bfa_fcs_lport_is_initiator(port));
7725ccfd 1972
a36c61f9 1973 if (bfa_fcs_lport_is_initiator(port)) {
7725ccfd
JH		 1974 rport->itnim = bfa_fcs_itnim_create(rport);
1975 if (!rport->itnim) {
1976 bfa_trc(fcs, rpid);
da99dcc9
MZ		 1977 bfa_sm_send_event(rport->bfa_rport,
1978 BFA_RPORT_SM_DELETE);
7725ccfd
JH		 1979 kfree(rport_drv);
1980 return NULL;
1981 }
1982 }
1983
a36c61f9 1984 bfa_fcs_lport_add_rport(port, rport);
7725ccfd
JH		 1985
1986 bfa_sm_set_state(rport, bfa_fcs_rport_sm_uninit);
1987
a36c61f9 1988 /* Initialize the Rport Features(RPF) Sub Module */
7725ccfd
JH		 1989 if (!BFA_FCS_PID_IS_WKA(rport->pid))
1990 bfa_fcs_rpf_init(rport);
1991
1992 return rport;
1993}
1994
1995
1996static void
1997bfa_fcs_rport_free(struct bfa_fcs_rport_s *rport)
1998{
a36c61f9 1999 struct bfa_fcs_lport_s *port = rport->port;
7725ccfd 2000
5fbe25c7 2001 /*
7725ccfd
JH		 2002 * - delete FC-4s
2003 * - delete BFA rport
2004 * - remove from queue of rports
2005 */
a36c61f9 2006 if (bfa_fcs_lport_is_initiator(port)) {
7725ccfd 2007 bfa_fcs_itnim_delete(rport->itnim);
a36c61f9
KG		 2008 if (rport->pid != 0 && !BFA_FCS_PID_IS_WKA(rport->pid))
2009 bfa_fcs_rpf_rport_offline(rport);
2010 }
7725ccfd 2011
f7f73812 2012 bfa_sm_send_event(rport->bfa_rport, BFA_RPORT_SM_DELETE);
a36c61f9 2013 bfa_fcs_lport_del_rport(port, rport);
7725ccfd
JH		 2014 kfree(rport->rp_drv);
2015}
2016
7725ccfd
JH		 2017static void
2018bfa_fcs_rport_online_action(struct bfa_fcs_rport_s *rport)
2019{
a36c61f9
KG		 2020 struct bfa_fcs_lport_s *port = rport->port;
2021 struct bfad_s *bfad = (struct bfad_s *)port->fcs->bfad;
2022 char lpwwn_buf[BFA_STRING_32];
2023 char rpwwn_buf[BFA_STRING_32];
7725ccfd
JH		 2024
2025 rport->stats.onlines++;
2026
a36c61f9 2027 if (bfa_fcs_lport_is_initiator(port)) {
7725ccfd
JH		 2028 bfa_fcs_itnim_rport_online(rport->itnim);
2029 if (!BFA_FCS_PID_IS_WKA(rport->pid))
2030 bfa_fcs_rpf_rport_online(rport);
2031 };
2032
a36c61f9
KG		 2033 wwn2str(lpwwn_buf, bfa_fcs_lport_get_pwwn(port));
2034 wwn2str(rpwwn_buf, rport->pwwn);
7725ccfd 2035 if (!BFA_FCS_PID_IS_WKA(rport->pid))
88166242 2036 BFA_LOG(KERN_INFO, bfad, bfa_log_level,
a36c61f9
KG		 2037 "Remote port (WWN = %s) online for logical port (WWN = %s)\n",
2038 rpwwn_buf, lpwwn_buf);
7725ccfd
JH		 2039}
2040
2041static void
2042bfa_fcs_rport_offline_action(struct bfa_fcs_rport_s *rport)
2043{
a36c61f9
KG		 2044 struct bfa_fcs_lport_s *port = rport->port;
2045 struct bfad_s *bfad = (struct bfad_s *)port->fcs->bfad;
2046 char lpwwn_buf[BFA_STRING_32];
2047 char rpwwn_buf[BFA_STRING_32];
7725ccfd
JH		 2048
2049 rport->stats.offlines++;
2050
a36c61f9
KG		 2051 wwn2str(lpwwn_buf, bfa_fcs_lport_get_pwwn(port));
2052 wwn2str(rpwwn_buf, rport->pwwn);
7725ccfd 2053 if (!BFA_FCS_PID_IS_WKA(rport->pid)) {
a36c61f9 2054 if (bfa_fcs_lport_is_online(rport->port) == BFA_TRUE)
88166242 2055 BFA_LOG(KERN_ERR, bfad, bfa_log_level,
a36c61f9
KG		 2056 "Remote port (WWN = %s) connectivity lost for "
2057 "logical port (WWN = %s)\n",
2058 rpwwn_buf, lpwwn_buf);
2059 else
88166242 2060 BFA_LOG(KERN_INFO, bfad, bfa_log_level,
a36c61f9
KG		 2061 "Remote port (WWN = %s) offlined by "
2062 "logical port (WWN = %s)\n",
2063 rpwwn_buf, lpwwn_buf);
7725ccfd
JH		 2064 }
2065
a36c61f9 2066 if (bfa_fcs_lport_is_initiator(port)) {
7725ccfd
JH		 2067 bfa_fcs_itnim_rport_offline(rport->itnim);
2068 if (!BFA_FCS_PID_IS_WKA(rport->pid))
2069 bfa_fcs_rpf_rport_offline(rport);
2070 }
7725ccfd
JH		 2071}
2072
5fbe25c7 2073/*
7725ccfd
JH		 2074 * Update rport parameters from PLOGI or PLOGI accept.
2075 */
2076static void
2077bfa_fcs_rport_update(struct bfa_fcs_rport_s *rport, struct fc_logi_s *plogi)
2078{
a36c61f9 2079 bfa_fcs_lport_t *port = rport->port;
7725ccfd 2080
5fbe25c7 2081 /*
7725ccfd
JH		 2082 * - port name
2083 * - node name
2084 */
2085 rport->pwwn = plogi->port_name;
2086 rport->nwwn = plogi->node_name;
2087
5fbe25c7 2088 /*
7725ccfd
JH		 2089 * - class of service
2090 */
2091 rport->fc_cos = 0;
2092 if (plogi->class3.class_valid)
2093 rport->fc_cos = FC_CLASS_3;
2094
2095 if (plogi->class2.class_valid)
2096 rport->fc_cos |= FC_CLASS_2;
2097
5fbe25c7 2098 /*
7725ccfd
JH		 2099 * - CISC
2100 * - MAX receive frame size
2101 */
2102 rport->cisc = plogi->csp.cisc;
ba816ea8 2103 rport->maxfrsize = be16_to_cpu(plogi->class3.rxsz);
7725ccfd 2104
ba816ea8 2105 bfa_trc(port->fcs, be16_to_cpu(plogi->csp.bbcred));
7725ccfd 2106 bfa_trc(port->fcs, port->fabric->bb_credit);
5fbe25c7 2107 /*
7725ccfd
JH		 2108 * Direct Attach P2P mode :
2109 * This is to handle a bug (233476) in IBM targets in Direct Attach
a36c61f9
KG		 2110 * Mode. Basically, in FLOGI Accept the target would have
2111 * erroneously set the BB Credit to the value used in the FLOGI
2112 * sent by the HBA. It uses the correct value (its own BB credit)
2113 * in PLOGI.
7725ccfd 2114 */
a36c61f9 2115 if ((!bfa_fcs_fabric_is_switched(port->fabric)) &&
ba816ea8 2116 (be16_to_cpu(plogi->csp.bbcred) < port->fabric->bb_credit)) {
7725ccfd 2117
ba816ea8 2118 bfa_trc(port->fcs, be16_to_cpu(plogi->csp.bbcred));
7725ccfd
JH		 2119 bfa_trc(port->fcs, port->fabric->bb_credit);
2120
ba816ea8 2121 port->fabric->bb_credit = be16_to_cpu(plogi->csp.bbcred);
1c8a4c37 2122 bfa_fcport_set_tx_bbcredit(port->fcs->bfa,
7725ccfd
JH		 2123 port->fabric->bb_credit);
2124 }
2125
2126}
2127
5fbe25c7 2128/*
a36c61f9 2129 * Called to handle LOGO received from an existing remote port.
7725ccfd
JH		 2130 */
2131static void
2132bfa_fcs_rport_process_logo(struct bfa_fcs_rport_s *rport, struct fchs_s *fchs)
2133{
2134 rport->reply_oxid = fchs->ox_id;
2135 bfa_trc(rport->fcs, rport->reply_oxid);
2136
4b5e759d 2137 rport->prlo = BFA_FALSE;
7725ccfd
JH		 2138 rport->stats.logo_rcvd++;
2139 bfa_sm_send_event(rport, RPSM_EVENT_LOGO_RCVD);
2140}
2141
2142
2143
5fbe25c7 2144/*
7725ccfd
JH		 2145 * fcs_rport_public FCS rport public interfaces
2146 */
2147
5fbe25c7 2148/*
a36c61f9
KG		 2149 * Called by bport/vport to create a remote port instance for a discovered
2150 * remote device.
7725ccfd
JH		 2151 *
2152 * @param[in] port - base port or vport
2153 * @param[in] rpid - remote port ID
2154 *
2155 * @return None
2156 */
2157struct bfa_fcs_rport_s *
a36c61f9 2158bfa_fcs_rport_create(struct bfa_fcs_lport_s *port, u32 rpid)
7725ccfd
JH		 2159{
2160 struct bfa_fcs_rport_s *rport;
2161
2162 bfa_trc(port->fcs, rpid);
2163 rport = bfa_fcs_rport_alloc(port, WWN_NULL, rpid);
2164 if (!rport)
2165 return NULL;
2166
2167 bfa_sm_send_event(rport, RPSM_EVENT_PLOGI_SEND);
2168 return rport;
2169}
2170
5fbe25c7 2171/*
7725ccfd
JH		 2172 * Called to create a rport for which only the wwn is known.
2173 *
2174 * @param[in] port - base port
2175 * @param[in] rpwwn - remote port wwn
2176 *
2177 * @return None
2178 */
2179struct bfa_fcs_rport_s *
a36c61f9 2180bfa_fcs_rport_create_by_wwn(struct bfa_fcs_lport_s *port, wwn_t rpwwn)
7725ccfd
JH		 2181{
2182 struct bfa_fcs_rport_s *rport;
7725ccfd
JH		 2183 bfa_trc(port->fcs, rpwwn);
2184 rport = bfa_fcs_rport_alloc(port, rpwwn, 0);
2185 if (!rport)
2186 return NULL;
2187
2188 bfa_sm_send_event(rport, RPSM_EVENT_ADDRESS_DISC);
2189 return rport;
2190}
5fbe25c7 2191/*
7725ccfd
JH		 2192 * Called by bport in private loop topology to indicate that a
2193 * rport has been discovered and plogi has been completed.
2194 *
2195 * @param[in] port - base port or vport
2196 * @param[in] rpid - remote port ID
2197 */
2198void
a36c61f9
KG		 2199bfa_fcs_rport_start(struct bfa_fcs_lport_s *port, struct fchs_s *fchs,
2200 struct fc_logi_s *plogi)
7725ccfd
JH		 2201{
2202 struct bfa_fcs_rport_s *rport;
2203
2204 rport = bfa_fcs_rport_alloc(port, WWN_NULL, fchs->s_id);
2205 if (!rport)
2206 return;
2207
2208 bfa_fcs_rport_update(rport, plogi);
2209
2210 bfa_sm_send_event(rport, RPSM_EVENT_PLOGI_COMP);
2211}
2212
5fbe25c7 2213/*
a36c61f9
KG		 2214 * Called by bport/vport to handle PLOGI received from a new remote port.
2215 * If an existing rport does a plogi, it will be handled separately.
7725ccfd
JH		 2216 */
2217void
a36c61f9
KG		 2218bfa_fcs_rport_plogi_create(struct bfa_fcs_lport_s *port, struct fchs_s *fchs,
2219 struct fc_logi_s *plogi)
7725ccfd
JH		 2220{
2221 struct bfa_fcs_rport_s *rport;
2222
2223 rport = bfa_fcs_rport_alloc(port, plogi->port_name, fchs->s_id);
2224 if (!rport)
2225 return;
2226
2227 bfa_fcs_rport_update(rport, plogi);
2228
2229 rport->reply_oxid = fchs->ox_id;
2230 bfa_trc(rport->fcs, rport->reply_oxid);
2231
2232 rport->stats.plogi_rcvd++;
2233 bfa_sm_send_event(rport, RPSM_EVENT_PLOGI_RCVD);
2234}
2235
2236static int
2237wwn_compare(wwn_t wwn1, wwn_t wwn2)
2238{
a36c61f9
KG		 2239 u8 *b1 = (u8 *) &wwn1;
2240 u8 *b2 = (u8 *) &wwn2;
2241 int i;
7725ccfd
JH		 2242
2243 for (i = 0; i < sizeof(wwn_t); i++) {
2244 if (b1[i] < b2[i])
2245 return -1;
2246 if (b1[i] > b2[i])
2247 return 1;
2248 }
2249 return 0;
2250}
2251
5fbe25c7 2252/*
a36c61f9
KG		 2253 * Called by bport/vport to handle PLOGI received from an existing
2254 * remote port.
7725ccfd
JH		 2255 */
2256void
2257bfa_fcs_rport_plogi(struct bfa_fcs_rport_s *rport, struct fchs_s *rx_fchs,
a36c61f9 2258 struct fc_logi_s *plogi)
7725ccfd 2259{
5fbe25c7 2260 /*
7725ccfd
JH		 2261 * @todo Handle P2P and initiator-initiator.
2262 */
2263
2264 bfa_fcs_rport_update(rport, plogi);
2265
2266 rport->reply_oxid = rx_fchs->ox_id;
2267 bfa_trc(rport->fcs, rport->reply_oxid);
2268
5fbe25c7 2269 /*
7725ccfd
JH		 2270 * In Switched fabric topology,
2271 * PLOGI to each other. If our pwwn is smaller, ignore it,
2272 * if it is not a well known address.
2273 * If the link topology is N2N,
2274 * this Plogi should be accepted.
2275 */
a36c61f9
KG		 2276 if ((wwn_compare(rport->port->port_cfg.pwwn, rport->pwwn) == -1) &&
2277 (bfa_fcs_fabric_is_switched(rport->port->fabric)) &&
2278 (!BFA_FCS_PID_IS_WKA(rport->pid))) {
7725ccfd
JH		 2279 bfa_trc(rport->fcs, rport->pid);
2280 return;
2281 }
2282
2283 rport->stats.plogi_rcvd++;
2284 bfa_sm_send_event(rport, RPSM_EVENT_PLOGI_RCVD);
2285}
2286
7725ccfd 2287
5fbe25c7 2288/*
a36c61f9 2289 * Called by bport/vport to notify SCN for the remote port
7725ccfd
JH		 2290 */
2291void
2292bfa_fcs_rport_scn(struct bfa_fcs_rport_s *rport)
2293{
7725ccfd
JH		 2294 rport->stats.rscns++;
2295 bfa_sm_send_event(rport, RPSM_EVENT_SCN);
2296}
2297
7725ccfd 2298
5fbe25c7 2299/*
a36c61f9
KG		 2300 * brief
2301 * This routine BFA callback for bfa_rport_online() call.
7725ccfd 2302 *
a36c61f9 2303 * param[in] cb_arg - rport struct.
7725ccfd 2304 *
a36c61f9
KG		 2305 * return
2306 * void
7725ccfd 2307 *
a36c61f9 2308 * Special Considerations:
7725ccfd 2309 *
a36c61f9 2310 * note
7725ccfd
JH		 2311 */
2312void
2313bfa_cb_rport_online(void *cbarg)
2314{
2315
a36c61f9 2316 struct bfa_fcs_rport_s *rport = (struct bfa_fcs_rport_s *) cbarg;
7725ccfd
JH		 2317
2318 bfa_trc(rport->fcs, rport->pwwn);
2319 bfa_sm_send_event(rport, RPSM_EVENT_HCB_ONLINE);
2320}
2321
5fbe25c7 2322/*
a36c61f9
KG		 2323 * brief
2324 * This routine BFA callback for bfa_rport_offline() call.
7725ccfd 2325 *
a36c61f9 2326 * param[in] rport -
7725ccfd 2327 *
a36c61f9
KG		 2328 * return
2329 * void
7725ccfd 2330 *
a36c61f9 2331 * Special Considerations:
7725ccfd 2332 *
a36c61f9 2333 * note
7725ccfd
JH		 2334 */
2335void
2336bfa_cb_rport_offline(void *cbarg)
2337{
a36c61f9 2338 struct bfa_fcs_rport_s *rport = (struct bfa_fcs_rport_s *) cbarg;
7725ccfd
JH		 2339
2340 bfa_trc(rport->fcs, rport->pwwn);
2341 bfa_sm_send_event(rport, RPSM_EVENT_HCB_OFFLINE);
2342}
2343
5fbe25c7 2344/*
a36c61f9
KG		 2345 * brief
2346 * This routine is a static BFA callback when there is a QoS flow_id
2347 * change notification
7725ccfd 2348 *
a36c61f9 2349 * param[in] rport -
7725ccfd 2350 *
a36c61f9
KG		 2351 * return
2352 * void
7725ccfd 2353 *
a36c61f9 2354 * Special Considerations:
7725ccfd 2355 *
a36c61f9 2356 * note
7725ccfd
JH		 2357 */
2358void
2359bfa_cb_rport_qos_scn_flowid(void *cbarg,
a36c61f9
KG		 2360 struct bfa_rport_qos_attr_s old_qos_attr,
2361 struct bfa_rport_qos_attr_s new_qos_attr)
7725ccfd 2362{
a36c61f9 2363 struct bfa_fcs_rport_s *rport = (struct bfa_fcs_rport_s *) cbarg;
7725ccfd
JH		 2364
2365 bfa_trc(rport->fcs, rport->pwwn);
7725ccfd
JH		 2366}
2367
5fbe25c7 2368/*
a36c61f9
KG		 2369 * brief
2370 * This routine is a static BFA callback when there is a QoS priority
2371 * change notification
7725ccfd 2372 *
a36c61f9 2373 * param[in] rport -
7725ccfd 2374 *
a36c61f9
KG		 2375 * return
2376 * void
7725ccfd 2377 *
a36c61f9 2378 * Special Considerations:
7725ccfd 2379 *
a36c61f9 2380 * note
7725ccfd
JH		 2381 */
2382void
a36c61f9
KG		 2383bfa_cb_rport_qos_scn_prio(void *cbarg,
2384 struct bfa_rport_qos_attr_s old_qos_attr,
2385 struct bfa_rport_qos_attr_s new_qos_attr)
7725ccfd 2386{
a36c61f9 2387 struct bfa_fcs_rport_s *rport = (struct bfa_fcs_rport_s *) cbarg;
7725ccfd
JH		 2388
2389 bfa_trc(rport->fcs, rport->pwwn);
7725ccfd
JH		 2390}
2391
5fbe25c7 2392/*
a36c61f9 2393 * Called to process any unsolicted frames from this remote port
7725ccfd
JH		 2394 */
2395void
a36c61f9
KG		 2396bfa_fcs_rport_uf_recv(struct bfa_fcs_rport_s *rport,
2397 struct fchs_s *fchs, u16 len)
7725ccfd 2398{
a36c61f9
KG		 2399 struct bfa_fcs_lport_s *port = rport->port;
2400 struct fc_els_cmd_s *els_cmd;
7725ccfd
JH		 2401
2402 bfa_trc(rport->fcs, fchs->s_id);
2403 bfa_trc(rport->fcs, fchs->d_id);
2404 bfa_trc(rport->fcs, fchs->type);
2405
2406 if (fchs->type != FC_TYPE_ELS)
2407 return;
2408
2409 els_cmd = (struct fc_els_cmd_s *) (fchs + 1);
2410
2411 bfa_trc(rport->fcs, els_cmd->els_code);
2412
2413 switch (els_cmd->els_code) {
2414 case FC_ELS_LOGO:
a36c61f9 2415 bfa_stats(port, plogi_rcvd);
7725ccfd
JH		 2416 bfa_fcs_rport_process_logo(rport, fchs);
2417 break;
2418
2419 case FC_ELS_ADISC:
a36c61f9 2420 bfa_stats(port, adisc_rcvd);
7725ccfd
JH		 2421 bfa_fcs_rport_process_adisc(rport, fchs, len);
2422 break;
2423
2424 case FC_ELS_PRLO:
a36c61f9
KG		 2425 bfa_stats(port, prlo_rcvd);
2426 if (bfa_fcs_lport_is_initiator(port))
7725ccfd 2427 bfa_fcs_fcpim_uf_recv(rport->itnim, fchs, len);
7725ccfd
JH		 2428 break;
2429
2430 case FC_ELS_PRLI:
a36c61f9 2431 bfa_stats(port, prli_rcvd);
7725ccfd
JH		 2432 bfa_fcs_rport_process_prli(rport, fchs, len);
2433 break;
2434
2435 case FC_ELS_RPSC:
a36c61f9 2436 bfa_stats(port, rpsc_rcvd);
7725ccfd
JH		 2437 bfa_fcs_rport_process_rpsc(rport, fchs, len);
2438 break;
2439
2440 default:
a36c61f9 2441 bfa_stats(port, un_handled_els_rcvd);
7725ccfd
JH		 2442 bfa_fcs_rport_send_ls_rjt(rport, fchs,
2443 FC_LS_RJT_RSN_CMD_NOT_SUPP,
2444 FC_LS_RJT_EXP_NO_ADDL_INFO);
2445 break;
2446 }
2447}
2448
a36c61f9 2449/* send best case acc to prlo */
4b5e759d
JH		 2450static void
2451bfa_fcs_rport_send_prlo_acc(struct bfa_fcs_rport_s *rport)
2452{
a36c61f9
KG		 2453 struct bfa_fcs_lport_s *port = rport->port;
2454 struct fchs_s fchs;
4b5e759d 2455 struct bfa_fcxp_s *fcxp;
a36c61f9 2456 int len;
4b5e759d
JH		 2457
2458 bfa_trc(rport->fcs, rport->pid);
2459
2460 fcxp = bfa_fcs_fcxp_alloc(port->fcs);
2461 if (!fcxp)
2462 return;
4b5e759d 2463 len = fc_prlo_acc_build(&fchs, bfa_fcxp_get_reqbuf(fcxp),
a36c61f9 2464 rport->pid, bfa_fcs_lport_get_fcid(port),
4b5e759d
JH		 2465 rport->reply_oxid, 0);
2466
2467 bfa_fcxp_send(fcxp, rport->bfa_rport, port->fabric->vf_id,
a36c61f9
KG		 2468 port->lp_tag, BFA_FALSE, FC_CLASS_3, len, &fchs,
2469 NULL, NULL, FC_MAX_PDUSZ, 0);
4b5e759d
JH		 2470}
2471
7725ccfd
JH		 2472/*
2473 * Send a LS reject
2474 */
2475static void
2476bfa_fcs_rport_send_ls_rjt(struct bfa_fcs_rport_s *rport, struct fchs_s *rx_fchs,
2477 u8 reason_code, u8 reason_code_expl)
2478{
a36c61f9
KG		 2479 struct bfa_fcs_lport_s *port = rport->port;
2480 struct fchs_s fchs;
7725ccfd 2481 struct bfa_fcxp_s *fcxp;
a36c61f9 2482 int len;
7725ccfd
JH		 2483
2484 bfa_trc(rport->fcs, rx_fchs->s_id);
2485
2486 fcxp = bfa_fcs_fcxp_alloc(rport->fcs);
2487 if (!fcxp)
2488 return;
2489
a36c61f9
KG		 2490 len = fc_ls_rjt_build(&fchs, bfa_fcxp_get_reqbuf(fcxp),
2491 rx_fchs->s_id, bfa_fcs_lport_get_fcid(port),
2492 rx_fchs->ox_id, reason_code, reason_code_expl);
7725ccfd 2493
a36c61f9
KG		 2494 bfa_fcxp_send(fcxp, NULL, port->fabric->vf_id, port->lp_tag,
2495 BFA_FALSE, FC_CLASS_3, len, &fchs, NULL, NULL,
2496 FC_MAX_PDUSZ, 0);
7725ccfd
JH		 2497}
2498
5fbe25c7 2499/*
7725ccfd
JH		 2500 * Return state of rport.
2501 */
2502int
2503bfa_fcs_rport_get_state(struct bfa_fcs_rport_s *rport)
2504{
2505 return bfa_sm_to_state(rport_sm_table, rport->sm);
2506}
2507
f7f73812 2508
5fbe25c7 2509/*
a36c61f9
KG		 2510 * brief
2511 * Called by the Driver to set rport delete/ageout timeout
7725ccfd 2512 *
a36c61f9 2513 * param[in] rport timeout value in seconds.
7725ccfd 2514 *
a36c61f9 2515 * return None
7725ccfd
JH		 2516 */
2517void
2518bfa_fcs_rport_set_del_timeout(u8 rport_tmo)
2519{
a36c61f9 2520 /* convert to Millisecs */
7725ccfd
JH		 2521 if (rport_tmo > 0)
2522 bfa_fcs_rport_del_timeout = rport_tmo * 1000;
2523}
4b5e759d 2524void
50444a34 2525bfa_fcs_rport_prlo(struct bfa_fcs_rport_s *rport, __be16 ox_id)
4b5e759d
JH		 2526{
2527 bfa_trc(rport->fcs, rport->pid);
2528
2529 rport->prlo = BFA_TRUE;
2530 rport->reply_oxid = ox_id;
2531 bfa_sm_send_event(rport, RPSM_EVENT_PRLO_RCVD);
2532}
a36c61f9
KG		 2533
2534
2535
5fbe25c7 2536/*
a36c61f9
KG		 2537 * Remote port implementation.
2538 */
2539
5fbe25c7 2540/*
a36c61f9
KG		 2541 * fcs_rport_api FCS rport API.
2542 */
2543
a36c61f9
KG		 2544struct bfa_fcs_rport_s *
2545bfa_fcs_rport_lookup(struct bfa_fcs_lport_s *port, wwn_t rpwwn)
2546{
2547 struct bfa_fcs_rport_s *rport;
2548
2549 rport = bfa_fcs_lport_get_rport_by_pwwn(port, rpwwn);
2550 if (rport == NULL) {
2551 /*
2552 * TBD Error handling
2553 */
2554 }
2555
2556 return rport;
2557}
2558
2559struct bfa_fcs_rport_s *
2560bfa_fcs_rport_lookup_by_nwwn(struct bfa_fcs_lport_s *port, wwn_t rnwwn)
2561{
2562 struct bfa_fcs_rport_s *rport;
2563
2564 rport = bfa_fcs_lport_get_rport_by_nwwn(port, rnwwn);
2565 if (rport == NULL) {
2566 /*
2567 * TBD Error handling
2568 */
2569 }
2570
2571 return rport;
2572}
2573
5fbe25c7 2574/*
a36c61f9
KG		 2575 * Remote port features (RPF) implementation.
2576 */
2577
2578#define BFA_FCS_RPF_RETRIES (3)
2579#define BFA_FCS_RPF_RETRY_TIMEOUT (1000) /* 1 sec (In millisecs) */
2580
2581static void bfa_fcs_rpf_send_rpsc2(void *rport_cbarg,
2582 struct bfa_fcxp_s *fcxp_alloced);
2583static void bfa_fcs_rpf_rpsc2_response(void *fcsarg,
2584 struct bfa_fcxp_s *fcxp,
2585 void *cbarg,
2586 bfa_status_t req_status,
2587 u32 rsp_len,
2588 u32 resid_len,
2589 struct fchs_s *rsp_fchs);
2590
2591static void bfa_fcs_rpf_timeout(void *arg);
2592
5fbe25c7 2593/*
a36c61f9
KG		 2594 * fcs_rport_ftrs_sm FCS rport state machine events
2595 */
2596
2597enum rpf_event {
2598 RPFSM_EVENT_RPORT_OFFLINE = 1, /* Rport offline */
2599 RPFSM_EVENT_RPORT_ONLINE = 2, /* Rport online */
2600 RPFSM_EVENT_FCXP_SENT = 3, /* Frame from has been sent */
2601 RPFSM_EVENT_TIMEOUT = 4, /* Rport SM timeout event */
2602 RPFSM_EVENT_RPSC_COMP = 5,
2603 RPFSM_EVENT_RPSC_FAIL = 6,
2604 RPFSM_EVENT_RPSC_ERROR = 7,
2605};
2606
2607static void bfa_fcs_rpf_sm_uninit(struct bfa_fcs_rpf_s *rpf,
2608 enum rpf_event event);
2609static void bfa_fcs_rpf_sm_rpsc_sending(struct bfa_fcs_rpf_s *rpf,
2610 enum rpf_event event);
2611static void bfa_fcs_rpf_sm_rpsc(struct bfa_fcs_rpf_s *rpf,
2612 enum rpf_event event);
2613static void bfa_fcs_rpf_sm_rpsc_retry(struct bfa_fcs_rpf_s *rpf,
2614 enum rpf_event event);
2615static void bfa_fcs_rpf_sm_offline(struct bfa_fcs_rpf_s *rpf,
2616 enum rpf_event event);
2617static void bfa_fcs_rpf_sm_online(struct bfa_fcs_rpf_s *rpf,
2618 enum rpf_event event);
2619
2620static void
2621bfa_fcs_rpf_sm_uninit(struct bfa_fcs_rpf_s *rpf, enum rpf_event event)
2622{
2623 struct bfa_fcs_rport_s *rport = rpf->rport;
2624 struct bfa_fcs_fabric_s *fabric = &rport->fcs->fabric;
2625
2626 bfa_trc(rport->fcs, rport->pwwn);
2627 bfa_trc(rport->fcs, rport->pid);
2628 bfa_trc(rport->fcs, event);
2629
2630 switch (event) {
2631 case RPFSM_EVENT_RPORT_ONLINE:
2632 /* Send RPSC2 to a Brocade fabric only. */
2633 if ((!BFA_FCS_PID_IS_WKA(rport->pid)) &&
f7f73812 2634 ((rport->port->fabric->lps->brcd_switch) ||
a36c61f9
KG		 2635 (bfa_fcs_fabric_get_switch_oui(fabric) ==
2636 BFA_FCS_BRCD_SWITCH_OUI))) {
2637 bfa_sm_set_state(rpf, bfa_fcs_rpf_sm_rpsc_sending);
2638 rpf->rpsc_retries = 0;
2639 bfa_fcs_rpf_send_rpsc2(rpf, NULL);
2640 }
2641 break;
2642
2643 case RPFSM_EVENT_RPORT_OFFLINE:
2644 break;
2645
2646 default:
2647 bfa_sm_fault(rport->fcs, event);
2648 }
2649}
2650
2651static void
2652bfa_fcs_rpf_sm_rpsc_sending(struct bfa_fcs_rpf_s *rpf, enum rpf_event event)
2653{
2654 struct bfa_fcs_rport_s *rport = rpf->rport;
2655
2656 bfa_trc(rport->fcs, event);
2657
2658 switch (event) {
2659 case RPFSM_EVENT_FCXP_SENT:
2660 bfa_sm_set_state(rpf, bfa_fcs_rpf_sm_rpsc);
2661 break;
2662
2663 case RPFSM_EVENT_RPORT_OFFLINE:
2664 bfa_sm_set_state(rpf, bfa_fcs_rpf_sm_offline);
2665 bfa_fcxp_walloc_cancel(rport->fcs->bfa, &rpf->fcxp_wqe);
2666 rpf->rpsc_retries = 0;
2667 break;
2668
2669 default:
2670 bfa_sm_fault(rport->fcs, event);
2671 }
2672}
2673
2674static void
2675bfa_fcs_rpf_sm_rpsc(struct bfa_fcs_rpf_s *rpf, enum rpf_event event)
2676{
2677 struct bfa_fcs_rport_s *rport = rpf->rport;
2678
2679 bfa_trc(rport->fcs, rport->pid);
2680 bfa_trc(rport->fcs, event);
2681
2682 switch (event) {
2683 case RPFSM_EVENT_RPSC_COMP:
2684 bfa_sm_set_state(rpf, bfa_fcs_rpf_sm_online);
2685 /* Update speed info in f/w via BFA */
2686 if (rpf->rpsc_speed != BFA_PORT_SPEED_UNKNOWN)
2687 bfa_rport_speed(rport->bfa_rport, rpf->rpsc_speed);
2688 else if (rpf->assigned_speed != BFA_PORT_SPEED_UNKNOWN)
2689 bfa_rport_speed(rport->bfa_rport, rpf->assigned_speed);
2690 break;
2691
2692 case RPFSM_EVENT_RPSC_FAIL:
2693 /* RPSC not supported by rport */
2694 bfa_sm_set_state(rpf, bfa_fcs_rpf_sm_online);
2695 break;
2696
2697 case RPFSM_EVENT_RPSC_ERROR:
2698 /* need to retry...delayed a bit. */
2699 if (rpf->rpsc_retries++ < BFA_FCS_RPF_RETRIES) {
2700 bfa_timer_start(rport->fcs->bfa, &rpf->timer,
2701 bfa_fcs_rpf_timeout, rpf,
2702 BFA_FCS_RPF_RETRY_TIMEOUT);
2703 bfa_sm_set_state(rpf, bfa_fcs_rpf_sm_rpsc_retry);
2704 } else {
2705 bfa_sm_set_state(rpf, bfa_fcs_rpf_sm_online);
2706 }
2707 break;
2708
2709 case RPFSM_EVENT_RPORT_OFFLINE:
2710 bfa_sm_set_state(rpf, bfa_fcs_rpf_sm_offline);
2711 bfa_fcxp_discard(rpf->fcxp);
2712 rpf->rpsc_retries = 0;
2713 break;
2714
2715 default:
2716 bfa_sm_fault(rport->fcs, event);
2717 }
2718}
2719
2720static void
2721bfa_fcs_rpf_sm_rpsc_retry(struct bfa_fcs_rpf_s *rpf, enum rpf_event event)
2722{
2723 struct bfa_fcs_rport_s *rport = rpf->rport;
2724
2725 bfa_trc(rport->fcs, rport->pid);
2726 bfa_trc(rport->fcs, event);
2727
2728 switch (event) {
2729 case RPFSM_EVENT_TIMEOUT:
2730 /* re-send the RPSC */
2731 bfa_sm_set_state(rpf, bfa_fcs_rpf_sm_rpsc_sending);
2732 bfa_fcs_rpf_send_rpsc2(rpf, NULL);
2733 break;
2734
2735 case RPFSM_EVENT_RPORT_OFFLINE:
2736 bfa_timer_stop(&rpf->timer);
2737 bfa_sm_set_state(rpf, bfa_fcs_rpf_sm_offline);
2738 rpf->rpsc_retries = 0;
2739 break;
2740
2741 default:
2742 bfa_sm_fault(rport->fcs, event);
2743 }
2744}
2745
2746static void
2747bfa_fcs_rpf_sm_online(struct bfa_fcs_rpf_s *rpf, enum rpf_event event)
2748{
2749 struct bfa_fcs_rport_s *rport = rpf->rport;
2750
2751 bfa_trc(rport->fcs, rport->pwwn);
2752 bfa_trc(rport->fcs, rport->pid);
2753 bfa_trc(rport->fcs, event);
2754
2755 switch (event) {
2756 case RPFSM_EVENT_RPORT_OFFLINE:
2757 bfa_sm_set_state(rpf, bfa_fcs_rpf_sm_offline);
2758 rpf->rpsc_retries = 0;
2759 break;
2760
2761 default:
2762 bfa_sm_fault(rport->fcs, event);
2763 }
2764}
2765
2766static void
2767bfa_fcs_rpf_sm_offline(struct bfa_fcs_rpf_s *rpf, enum rpf_event event)
2768{
2769 struct bfa_fcs_rport_s *rport = rpf->rport;
2770
2771 bfa_trc(rport->fcs, rport->pwwn);
2772 bfa_trc(rport->fcs, rport->pid);
2773 bfa_trc(rport->fcs, event);
2774
2775 switch (event) {
2776 case RPFSM_EVENT_RPORT_ONLINE:
2777 bfa_sm_set_state(rpf, bfa_fcs_rpf_sm_rpsc_sending);
2778 bfa_fcs_rpf_send_rpsc2(rpf, NULL);
2779 break;
2780
2781 case RPFSM_EVENT_RPORT_OFFLINE:
2782 break;
2783
2784 default:
2785 bfa_sm_fault(rport->fcs, event);
2786 }
2787}
5fbe25c7 2788/*
a36c61f9
KG		 2789 * Called when Rport is created.
2790 */
2791void
2792bfa_fcs_rpf_init(struct bfa_fcs_rport_s *rport)
2793{
2794 struct bfa_fcs_rpf_s *rpf = &rport->rpf;
2795
2796 bfa_trc(rport->fcs, rport->pid);
2797 rpf->rport = rport;
2798
2799 bfa_sm_set_state(rpf, bfa_fcs_rpf_sm_uninit);
2800}
2801
5fbe25c7 2802/*
a36c61f9
KG		 2803 * Called when Rport becomes online
2804 */
2805void
2806bfa_fcs_rpf_rport_online(struct bfa_fcs_rport_s *rport)
2807{
2808 bfa_trc(rport->fcs, rport->pid);
2809
2810 if (__fcs_min_cfg(rport->port->fcs))
2811 return;
2812
2813 if (bfa_fcs_fabric_is_switched(rport->port->fabric))
2814 bfa_sm_send_event(&rport->rpf, RPFSM_EVENT_RPORT_ONLINE);
2815}
2816
5fbe25c7 2817/*
a36c61f9
KG		 2818 * Called when Rport becomes offline
2819 */
2820void
2821bfa_fcs_rpf_rport_offline(struct bfa_fcs_rport_s *rport)
2822{
2823 bfa_trc(rport->fcs, rport->pid);
2824
2825 if (__fcs_min_cfg(rport->port->fcs))
2826 return;
2827
2828 rport->rpf.rpsc_speed = 0;
2829 bfa_sm_send_event(&rport->rpf, RPFSM_EVENT_RPORT_OFFLINE);
2830}
2831
2832static void
2833bfa_fcs_rpf_timeout(void *arg)
2834{
2835 struct bfa_fcs_rpf_s *rpf = (struct bfa_fcs_rpf_s *) arg;
2836 struct bfa_fcs_rport_s *rport = rpf->rport;
2837
2838 bfa_trc(rport->fcs, rport->pid);
2839 bfa_sm_send_event(rpf, RPFSM_EVENT_TIMEOUT);
2840}
2841
2842static void
2843bfa_fcs_rpf_send_rpsc2(void *rpf_cbarg, struct bfa_fcxp_s *fcxp_alloced)
2844{
2845 struct bfa_fcs_rpf_s *rpf = (struct bfa_fcs_rpf_s *)rpf_cbarg;
2846 struct bfa_fcs_rport_s *rport = rpf->rport;
2847 struct bfa_fcs_lport_s *port = rport->port;
2848 struct fchs_s fchs;
2849 int len;
2850 struct bfa_fcxp_s *fcxp;
2851
2852 bfa_trc(rport->fcs, rport->pwwn);
2853
2854 fcxp = fcxp_alloced ? fcxp_alloced : bfa_fcs_fcxp_alloc(port->fcs);
2855 if (!fcxp) {
2856 bfa_fcs_fcxp_alloc_wait(port->fcs->bfa, &rpf->fcxp_wqe,
2857 bfa_fcs_rpf_send_rpsc2, rpf);
2858 return;
2859 }
2860 rpf->fcxp = fcxp;
2861
2862 len = fc_rpsc2_build(&fchs, bfa_fcxp_get_reqbuf(fcxp), rport->pid,
2863 bfa_fcs_lport_get_fcid(port), &rport->pid, 1);
2864
2865 bfa_fcxp_send(fcxp, NULL, port->fabric->vf_id, port->lp_tag, BFA_FALSE,
2866 FC_CLASS_3, len, &fchs, bfa_fcs_rpf_rpsc2_response,
2867 rpf, FC_MAX_PDUSZ, FC_ELS_TOV);
2868 rport->stats.rpsc_sent++;
2869 bfa_sm_send_event(rpf, RPFSM_EVENT_FCXP_SENT);
2870
2871}
2872
2873static void
2874bfa_fcs_rpf_rpsc2_response(void *fcsarg, struct bfa_fcxp_s *fcxp, void *cbarg,
2875 bfa_status_t req_status, u32 rsp_len,
2876 u32 resid_len, struct fchs_s *rsp_fchs)
2877{
2878 struct bfa_fcs_rpf_s *rpf = (struct bfa_fcs_rpf_s *) cbarg;
2879 struct bfa_fcs_rport_s *rport = rpf->rport;
2880 struct fc_ls_rjt_s *ls_rjt;
2881 struct fc_rpsc2_acc_s *rpsc2_acc;
2882 u16 num_ents;
2883
2884 bfa_trc(rport->fcs, req_status);
2885
2886 if (req_status != BFA_STATUS_OK) {
2887 bfa_trc(rport->fcs, req_status);
2888 if (req_status == BFA_STATUS_ETIMER)
2889 rport->stats.rpsc_failed++;
2890 bfa_sm_send_event(rpf, RPFSM_EVENT_RPSC_ERROR);
2891 return;
2892 }
2893
2894 rpsc2_acc = (struct fc_rpsc2_acc_s *) BFA_FCXP_RSP_PLD(fcxp);
2895 if (rpsc2_acc->els_cmd == FC_ELS_ACC) {
2896 rport->stats.rpsc_accs++;
ba816ea8 2897 num_ents = be16_to_cpu(rpsc2_acc->num_pids);
a36c61f9
KG		 2898 bfa_trc(rport->fcs, num_ents);
2899 if (num_ents > 0) {
2900 bfa_assert(rpsc2_acc->port_info[0].pid != rport->pid);
2901 bfa_trc(rport->fcs,
ba816ea8 2902 be16_to_cpu(rpsc2_acc->port_info[0].pid));
a36c61f9 2903 bfa_trc(rport->fcs,
ba816ea8 2904 be16_to_cpu(rpsc2_acc->port_info[0].speed));
a36c61f9 2905 bfa_trc(rport->fcs,
ba816ea8 2906 be16_to_cpu(rpsc2_acc->port_info[0].index));
a36c61f9
KG		 2907 bfa_trc(rport->fcs,
2908 rpsc2_acc->port_info[0].type);
2909
2910 if (rpsc2_acc->port_info[0].speed == 0) {
2911 bfa_sm_send_event(rpf, RPFSM_EVENT_RPSC_ERROR);
2912 return;
2913 }
2914
2915 rpf->rpsc_speed = fc_rpsc_operspeed_to_bfa_speed(
ba816ea8 2916 be16_to_cpu(rpsc2_acc->port_info[0].speed));
a36c61f9
KG		 2917
2918 bfa_sm_send_event(rpf, RPFSM_EVENT_RPSC_COMP);
2919 }
2920 } else {
2921 ls_rjt = (struct fc_ls_rjt_s *) BFA_FCXP_RSP_PLD(fcxp);
2922 bfa_trc(rport->fcs, ls_rjt->reason_code);
2923 bfa_trc(rport->fcs, ls_rjt->reason_code_expl);
2924 rport->stats.rpsc_rejects++;
2925 if (ls_rjt->reason_code == FC_LS_RJT_RSN_CMD_NOT_SUPP)
2926 bfa_sm_send_event(rpf, RPFSM_EVENT_RPSC_FAIL);
2927 else
2928 bfa_sm_send_event(rpf, RPFSM_EVENT_RPSC_ERROR);
2929 }
2930}
Linux 6.x block layer and io_uring tree(s)