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Merge git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty-2.6
[GitHub/mt8127/android_kernel_alcatel_ttab.git] / drivers / scsi / bfa / rport.c
1 /*
2 * Copyright (c) 2005-2009 Brocade Communications Systems, Inc.
3 * All rights reserved
4 * www.brocade.com
5 *
6 * Linux driver for Brocade Fibre Channel Host Bus Adapter.
7 *
8 * This program is free software; you can redistribute it and/or modify it
9 * under the terms of the GNU General Public License (GPL) Version 2 as
10 * published by the Free Software Foundation
11 *
12 * This program is distributed in the hope that it will be useful, but
13 * WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15 * General Public License for more details.
16 */
17
18 /**
19 * rport.c Remote port implementation.
20 */
21
22 #include <bfa.h>
23 #include <bfa_svc.h>
24 #include "fcbuild.h"
25 #include "fcs_vport.h"
26 #include "fcs_lport.h"
27 #include "fcs_rport.h"
28 #include "fcs_fcpim.h"
29 #include "fcs_fcptm.h"
30 #include "fcs_trcmod.h"
31 #include "fcs_fcxp.h"
32 #include "fcs.h"
33 #include <fcb/bfa_fcb_rport.h>
34 #include <aen/bfa_aen_rport.h>
35
36 BFA_TRC_FILE(FCS, RPORT);
37
38 #define BFA_FCS_RPORT_MAX_RETRIES (5)
39
40 /* In millisecs */
41 static u32 bfa_fcs_rport_del_timeout =
42 BFA_FCS_RPORT_DEF_DEL_TIMEOUT * 1000;
43
44 /*
45 * forward declarations
46 */
47 static struct bfa_fcs_rport_s *bfa_fcs_rport_alloc(struct bfa_fcs_port_s *port,
48 wwn_t pwwn, u32 rpid);
49 static void bfa_fcs_rport_free(struct bfa_fcs_rport_s *rport);
50 static void bfa_fcs_rport_hal_online(struct bfa_fcs_rport_s *rport);
51 static void bfa_fcs_rport_online_action(struct bfa_fcs_rport_s *rport);
52 static void bfa_fcs_rport_offline_action(struct bfa_fcs_rport_s *rport);
53 static void bfa_fcs_rport_update(struct bfa_fcs_rport_s *rport,
54 struct fc_logi_s *plogi);
55 static void bfa_fcs_rport_fc4_pause(struct bfa_fcs_rport_s *rport);
56 static void bfa_fcs_rport_fc4_resume(struct bfa_fcs_rport_s *rport);
57 static void bfa_fcs_rport_timeout(void *arg);
58 static void bfa_fcs_rport_send_plogi(void *rport_cbarg,
59 struct bfa_fcxp_s *fcxp_alloced);
60 static void bfa_fcs_rport_send_plogiacc(void *rport_cbarg,
61 struct bfa_fcxp_s *fcxp_alloced);
62 static void bfa_fcs_rport_plogi_response(void *fcsarg,
63 struct bfa_fcxp_s *fcxp,
64 void *cbarg,
65 bfa_status_t req_status,
66 u32 rsp_len,
67 u32 resid_len,
68 struct fchs_s *rsp_fchs);
69 static void bfa_fcs_rport_send_adisc(void *rport_cbarg,
70 struct bfa_fcxp_s *fcxp_alloced);
71 static void bfa_fcs_rport_adisc_response(void *fcsarg,
72 struct bfa_fcxp_s *fcxp,
73 void *cbarg,
74 bfa_status_t req_status,
75 u32 rsp_len,
76 u32 resid_len,
77 struct fchs_s *rsp_fchs);
78 static void bfa_fcs_rport_send_gidpn(void *rport_cbarg,
79 struct bfa_fcxp_s *fcxp_alloced);
80 static void bfa_fcs_rport_gidpn_response(void *fcsarg,
81 struct bfa_fcxp_s *fcxp,
82 void *cbarg,
83 bfa_status_t req_status,
84 u32 rsp_len,
85 u32 resid_len,
86 struct fchs_s *rsp_fchs);
87 static void bfa_fcs_rport_send_logo(void *rport_cbarg,
88 struct bfa_fcxp_s *fcxp_alloced);
89 static void bfa_fcs_rport_send_logo_acc(void *rport_cbarg);
90 static void bfa_fcs_rport_process_prli(struct bfa_fcs_rport_s *rport,
91 struct fchs_s *rx_fchs, u16 len);
92 static void bfa_fcs_rport_send_ls_rjt(struct bfa_fcs_rport_s *rport,
93 struct fchs_s *rx_fchs, u8 reason_code,
94 u8 reason_code_expl);
95 static void bfa_fcs_rport_process_adisc(struct bfa_fcs_rport_s *rport,
96 struct fchs_s *rx_fchs, u16 len);
97 /**
98 * fcs_rport_sm FCS rport state machine events
99 */
100
101 enum rport_event {
102 RPSM_EVENT_PLOGI_SEND = 1, /* new rport; start with PLOGI */
103 RPSM_EVENT_PLOGI_RCVD = 2, /* Inbound PLOGI from remote port */
104 RPSM_EVENT_PLOGI_COMP = 3, /* PLOGI completed to rport */
105 RPSM_EVENT_LOGO_RCVD = 4, /* LOGO from remote device */
106 RPSM_EVENT_LOGO_IMP = 5, /* implicit logo for SLER */
107 RPSM_EVENT_FCXP_SENT = 6, /* Frame from has been sent */
108 RPSM_EVENT_DELETE = 7, /* RPORT delete request */
109 RPSM_EVENT_SCN = 8, /* state change notification */
110 RPSM_EVENT_ACCEPTED = 9,/* Good response from remote device */
111 RPSM_EVENT_FAILED = 10, /* Request to rport failed. */
112 RPSM_EVENT_TIMEOUT = 11, /* Rport SM timeout event */
113 RPSM_EVENT_HCB_ONLINE = 12, /* BFA rport online callback */
114 RPSM_EVENT_HCB_OFFLINE = 13, /* BFA rport offline callback */
115 RPSM_EVENT_FC4_OFFLINE = 14, /* FC-4 offline complete */
116 RPSM_EVENT_ADDRESS_CHANGE = 15, /* Rport's PID has changed */
117 RPSM_EVENT_ADDRESS_DISC = 16 /* Need to Discover rport's PID */
118 };
119
120 static void bfa_fcs_rport_sm_uninit(struct bfa_fcs_rport_s *rport,
121 enum rport_event event);
122 static void bfa_fcs_rport_sm_plogi_sending(struct bfa_fcs_rport_s *rport,
123 enum rport_event event);
124 static void bfa_fcs_rport_sm_plogiacc_sending(struct bfa_fcs_rport_s *rport,
125 enum rport_event event);
126 static void bfa_fcs_rport_sm_plogi_retry(struct bfa_fcs_rport_s *rport,
127 enum rport_event event);
128 static void bfa_fcs_rport_sm_plogi(struct bfa_fcs_rport_s *rport,
129 enum rport_event event);
130 static void bfa_fcs_rport_sm_hal_online(struct bfa_fcs_rport_s *rport,
131 enum rport_event event);
132 static void bfa_fcs_rport_sm_online(struct bfa_fcs_rport_s *rport,
133 enum rport_event event);
134 static void bfa_fcs_rport_sm_nsquery_sending(struct bfa_fcs_rport_s *rport,
135 enum rport_event event);
136 static void bfa_fcs_rport_sm_nsquery(struct bfa_fcs_rport_s *rport,
137 enum rport_event event);
138 static void bfa_fcs_rport_sm_adisc_sending(struct bfa_fcs_rport_s *rport,
139 enum rport_event event);
140 static void bfa_fcs_rport_sm_adisc(struct bfa_fcs_rport_s *rport,
141 enum rport_event event);
142 static void bfa_fcs_rport_sm_fc4_logorcv(struct bfa_fcs_rport_s *rport,
143 enum rport_event event);
144 static void bfa_fcs_rport_sm_fc4_logosend(struct bfa_fcs_rport_s *rport,
145 enum rport_event event);
146 static void bfa_fcs_rport_sm_fc4_offline(struct bfa_fcs_rport_s *rport,
147 enum rport_event event);
148 static void bfa_fcs_rport_sm_hcb_offline(struct bfa_fcs_rport_s *rport,
149 enum rport_event event);
150 static void bfa_fcs_rport_sm_hcb_logorcv(struct bfa_fcs_rport_s *rport,
151 enum rport_event event);
152 static void bfa_fcs_rport_sm_hcb_logosend(struct bfa_fcs_rport_s *rport,
153 enum rport_event event);
154 static void bfa_fcs_rport_sm_logo_sending(struct bfa_fcs_rport_s *rport,
155 enum rport_event event);
156 static void bfa_fcs_rport_sm_offline(struct bfa_fcs_rport_s *rport,
157 enum rport_event event);
158 static void bfa_fcs_rport_sm_nsdisc_sending(struct bfa_fcs_rport_s *rport,
159 enum rport_event event);
160 static void bfa_fcs_rport_sm_nsdisc_retry(struct bfa_fcs_rport_s *rport,
161 enum rport_event event);
162 static void bfa_fcs_rport_sm_nsdisc_sent(struct bfa_fcs_rport_s *rport,
163 enum rport_event event);
164 static void bfa_fcs_rport_sm_nsdisc_sent(struct bfa_fcs_rport_s *rport,
165 enum rport_event event);
166
167 static struct bfa_sm_table_s rport_sm_table[] = {
168 {BFA_SM(bfa_fcs_rport_sm_uninit), BFA_RPORT_UNINIT},
169 {BFA_SM(bfa_fcs_rport_sm_plogi_sending), BFA_RPORT_PLOGI},
170 {BFA_SM(bfa_fcs_rport_sm_plogiacc_sending), BFA_RPORT_ONLINE},
171 {BFA_SM(bfa_fcs_rport_sm_plogi_retry), BFA_RPORT_PLOGI_RETRY},
172 {BFA_SM(bfa_fcs_rport_sm_plogi), BFA_RPORT_PLOGI},
173 {BFA_SM(bfa_fcs_rport_sm_hal_online), BFA_RPORT_ONLINE},
174 {BFA_SM(bfa_fcs_rport_sm_online), BFA_RPORT_ONLINE},
175 {BFA_SM(bfa_fcs_rport_sm_nsquery_sending), BFA_RPORT_NSQUERY},
176 {BFA_SM(bfa_fcs_rport_sm_nsquery), BFA_RPORT_NSQUERY},
177 {BFA_SM(bfa_fcs_rport_sm_adisc_sending), BFA_RPORT_ADISC},
178 {BFA_SM(bfa_fcs_rport_sm_adisc), BFA_RPORT_ADISC},
179 {BFA_SM(bfa_fcs_rport_sm_fc4_logorcv), BFA_RPORT_LOGORCV},
180 {BFA_SM(bfa_fcs_rport_sm_fc4_logosend), BFA_RPORT_LOGO},
181 {BFA_SM(bfa_fcs_rport_sm_fc4_offline), BFA_RPORT_OFFLINE},
182 {BFA_SM(bfa_fcs_rport_sm_hcb_offline), BFA_RPORT_OFFLINE},
183 {BFA_SM(bfa_fcs_rport_sm_hcb_logorcv), BFA_RPORT_LOGORCV},
184 {BFA_SM(bfa_fcs_rport_sm_hcb_logosend), BFA_RPORT_LOGO},
185 {BFA_SM(bfa_fcs_rport_sm_logo_sending), BFA_RPORT_LOGO},
186 {BFA_SM(bfa_fcs_rport_sm_offline), BFA_RPORT_OFFLINE},
187 {BFA_SM(bfa_fcs_rport_sm_nsdisc_sending), BFA_RPORT_NSDISC},
188 {BFA_SM(bfa_fcs_rport_sm_nsdisc_retry), BFA_RPORT_NSDISC},
189 {BFA_SM(bfa_fcs_rport_sm_nsdisc_sent), BFA_RPORT_NSDISC},
190 };
191
192 /**
193 * Beginning state.
194 */
195 static void
196 bfa_fcs_rport_sm_uninit(struct bfa_fcs_rport_s *rport, enum rport_event event)
197 {
198 bfa_trc(rport->fcs, rport->pwwn);
199 bfa_trc(rport->fcs, rport->pid);
200 bfa_trc(rport->fcs, event);
201
202 switch (event) {
203 case RPSM_EVENT_PLOGI_SEND:
204 bfa_sm_set_state(rport, bfa_fcs_rport_sm_plogi_sending);
205 rport->plogi_retries = 0;
206 bfa_fcs_rport_send_plogi(rport, NULL);
207 break;
208
209 case RPSM_EVENT_PLOGI_RCVD:
210 bfa_sm_set_state(rport, bfa_fcs_rport_sm_plogiacc_sending);
211 bfa_fcs_rport_send_plogiacc(rport, NULL);
212 break;
213
214 case RPSM_EVENT_PLOGI_COMP:
215 bfa_sm_set_state(rport, bfa_fcs_rport_sm_hal_online);
216 bfa_fcs_rport_hal_online(rport);
217 break;
218
219 case RPSM_EVENT_ADDRESS_CHANGE:
220 case RPSM_EVENT_ADDRESS_DISC:
221 bfa_sm_set_state(rport, bfa_fcs_rport_sm_nsdisc_sending);
222 rport->ns_retries = 0;
223 bfa_fcs_rport_send_gidpn(rport, NULL);
224 break;
225
226 default:
227 bfa_sm_fault(rport->fcs, event);
228 }
229 }
230
231 /**
232 * PLOGI is being sent.
233 */
234 static void
235 bfa_fcs_rport_sm_plogi_sending(struct bfa_fcs_rport_s *rport,
236 enum rport_event event)
237 {
238 bfa_trc(rport->fcs, rport->pwwn);
239 bfa_trc(rport->fcs, rport->pid);
240 bfa_trc(rport->fcs, event);
241
242 switch (event) {
243 case RPSM_EVENT_FCXP_SENT:
244 bfa_sm_set_state(rport, bfa_fcs_rport_sm_plogi);
245 break;
246
247 case RPSM_EVENT_DELETE:
248 bfa_sm_set_state(rport, bfa_fcs_rport_sm_uninit);
249 bfa_fcxp_walloc_cancel(rport->fcs->bfa, &rport->fcxp_wqe);
250 bfa_fcs_rport_free(rport);
251 break;
252
253 case RPSM_EVENT_PLOGI_RCVD:
254 bfa_sm_set_state(rport, bfa_fcs_rport_sm_plogiacc_sending);
255 bfa_fcxp_walloc_cancel(rport->fcs->bfa, &rport->fcxp_wqe);
256 bfa_fcs_rport_send_plogiacc(rport, NULL);
257 break;
258
259 case RPSM_EVENT_ADDRESS_CHANGE:
260 bfa_fcxp_walloc_cancel(rport->fcs->bfa, &rport->fcxp_wqe);
261 bfa_sm_set_state(rport, bfa_fcs_rport_sm_nsdisc_sending);
262 rport->ns_retries = 0;
263 bfa_fcs_rport_send_gidpn(rport, NULL);
264 break;
265
266 case RPSM_EVENT_LOGO_IMP:
267 rport->pid = 0;
268 bfa_sm_set_state(rport, bfa_fcs_rport_sm_offline);
269 bfa_fcxp_walloc_cancel(rport->fcs->bfa, &rport->fcxp_wqe);
270 bfa_timer_start(rport->fcs->bfa, &rport->timer,
271 bfa_fcs_rport_timeout, rport,
272 bfa_fcs_rport_del_timeout);
273 break;
274
275 case RPSM_EVENT_SCN:
276 break;
277
278 default:
279 bfa_sm_fault(rport->fcs, event);
280 }
281 }
282
283 /**
284 * PLOGI is being sent.
285 */
286 static void
287 bfa_fcs_rport_sm_plogiacc_sending(struct bfa_fcs_rport_s *rport,
288 enum rport_event event)
289 {
290 bfa_trc(rport->fcs, rport->pwwn);
291 bfa_trc(rport->fcs, rport->pid);
292 bfa_trc(rport->fcs, event);
293
294 switch (event) {
295 case RPSM_EVENT_FCXP_SENT:
296 bfa_sm_set_state(rport, bfa_fcs_rport_sm_hal_online);
297 bfa_fcs_rport_hal_online(rport);
298 break;
299
300 case RPSM_EVENT_DELETE:
301 bfa_sm_set_state(rport, bfa_fcs_rport_sm_uninit);
302 bfa_fcxp_walloc_cancel(rport->fcs->bfa, &rport->fcxp_wqe);
303 bfa_fcs_rport_free(rport);
304 break;
305
306 case RPSM_EVENT_SCN:
307 /**
308 * Ignore, SCN is possibly online notification.
309 */
310 break;
311
312 case RPSM_EVENT_ADDRESS_CHANGE:
313 bfa_fcxp_walloc_cancel(rport->fcs->bfa, &rport->fcxp_wqe);
314 bfa_sm_set_state(rport, bfa_fcs_rport_sm_nsdisc_sending);
315 rport->ns_retries = 0;
316 bfa_fcs_rport_send_gidpn(rport, NULL);
317 break;
318
319 case RPSM_EVENT_LOGO_IMP:
320 rport->pid = 0;
321 bfa_sm_set_state(rport, bfa_fcs_rport_sm_offline);
322 bfa_fcxp_walloc_cancel(rport->fcs->bfa, &rport->fcxp_wqe);
323 bfa_timer_start(rport->fcs->bfa, &rport->timer,
324 bfa_fcs_rport_timeout, rport,
325 bfa_fcs_rport_del_timeout);
326 break;
327
328 case RPSM_EVENT_HCB_OFFLINE:
329 /**
330 * Ignore BFA callback, on a PLOGI receive we call bfa offline.
331 */
332 break;
333
334 default:
335 bfa_sm_fault(rport->fcs, event);
336 }
337 }
338
339 /**
340 * PLOGI is sent.
341 */
342 static void
343 bfa_fcs_rport_sm_plogi_retry(struct bfa_fcs_rport_s *rport,
344 enum rport_event event)
345 {
346 bfa_trc(rport->fcs, rport->pwwn);
347 bfa_trc(rport->fcs, rport->pid);
348 bfa_trc(rport->fcs, event);
349
350 switch (event) {
351 case RPSM_EVENT_SCN:
352 bfa_timer_stop(&rport->timer);
353 /*
354 * !! fall through !!
355 */
356
357 case RPSM_EVENT_TIMEOUT:
358 rport->plogi_retries++;
359 if (rport->plogi_retries < BFA_FCS_RPORT_MAX_RETRIES) {
360 bfa_sm_set_state(rport, bfa_fcs_rport_sm_plogi_sending);
361 bfa_fcs_rport_send_plogi(rport, NULL);
362 } else {
363 rport->pid = 0;
364 bfa_sm_set_state(rport, bfa_fcs_rport_sm_offline);
365 bfa_timer_start(rport->fcs->bfa, &rport->timer,
366 bfa_fcs_rport_timeout, rport,
367 bfa_fcs_rport_del_timeout);
368 }
369 break;
370
371 case RPSM_EVENT_DELETE:
372 bfa_sm_set_state(rport, bfa_fcs_rport_sm_uninit);
373 bfa_timer_stop(&rport->timer);
374 bfa_fcs_rport_free(rport);
375 break;
376
377 case RPSM_EVENT_LOGO_RCVD:
378 break;
379
380 case RPSM_EVENT_PLOGI_RCVD:
381 bfa_sm_set_state(rport, bfa_fcs_rport_sm_plogiacc_sending);
382 bfa_timer_stop(&rport->timer);
383 bfa_fcs_rport_send_plogiacc(rport, NULL);
384 break;
385
386 case RPSM_EVENT_ADDRESS_CHANGE:
387 bfa_timer_stop(&rport->timer);
388 bfa_sm_set_state(rport, bfa_fcs_rport_sm_nsdisc_sending);
389 rport->ns_retries = 0;
390 bfa_fcs_rport_send_gidpn(rport, NULL);
391 break;
392
393 case RPSM_EVENT_LOGO_IMP:
394 rport->pid = 0;
395 bfa_sm_set_state(rport, bfa_fcs_rport_sm_offline);
396 bfa_timer_stop(&rport->timer);
397 bfa_timer_start(rport->fcs->bfa, &rport->timer,
398 bfa_fcs_rport_timeout, rport,
399 bfa_fcs_rport_del_timeout);
400 break;
401
402 case RPSM_EVENT_PLOGI_COMP:
403 bfa_sm_set_state(rport, bfa_fcs_rport_sm_hal_online);
404 bfa_timer_stop(&rport->timer);
405 bfa_fcs_rport_hal_online(rport);
406 break;
407
408 default:
409 bfa_sm_fault(rport->fcs, event);
410 }
411 }
412
413 /**
414 * PLOGI is sent.
415 */
416 static void
417 bfa_fcs_rport_sm_plogi(struct bfa_fcs_rport_s *rport, enum rport_event event)
418 {
419 bfa_trc(rport->fcs, rport->pwwn);
420 bfa_trc(rport->fcs, rport->pid);
421 bfa_trc(rport->fcs, event);
422
423 switch (event) {
424 case RPSM_EVENT_ACCEPTED:
425 bfa_sm_set_state(rport, bfa_fcs_rport_sm_hal_online);
426 rport->plogi_retries = 0;
427 bfa_fcs_rport_hal_online(rport);
428 break;
429
430 case RPSM_EVENT_LOGO_RCVD:
431 bfa_fcs_rport_send_logo_acc(rport);
432 bfa_fcxp_discard(rport->fcxp);
433 /*
434 * !! fall through !!
435 */
436 case RPSM_EVENT_FAILED:
437 bfa_sm_set_state(rport, bfa_fcs_rport_sm_plogi_retry);
438 bfa_timer_start(rport->fcs->bfa, &rport->timer,
439 bfa_fcs_rport_timeout, rport,
440 BFA_FCS_RETRY_TIMEOUT);
441 break;
442
443 case RPSM_EVENT_LOGO_IMP:
444 rport->pid = 0;
445 bfa_sm_set_state(rport, bfa_fcs_rport_sm_offline);
446 bfa_fcxp_discard(rport->fcxp);
447 bfa_timer_start(rport->fcs->bfa, &rport->timer,
448 bfa_fcs_rport_timeout, rport,
449 bfa_fcs_rport_del_timeout);
450 break;
451
452 case RPSM_EVENT_ADDRESS_CHANGE:
453 bfa_fcxp_discard(rport->fcxp);
454 bfa_sm_set_state(rport, bfa_fcs_rport_sm_nsdisc_sending);
455 rport->ns_retries = 0;
456 bfa_fcs_rport_send_gidpn(rport, NULL);
457 break;
458
459 case RPSM_EVENT_PLOGI_RCVD:
460 bfa_sm_set_state(rport, bfa_fcs_rport_sm_plogiacc_sending);
461 bfa_fcxp_discard(rport->fcxp);
462 bfa_fcs_rport_send_plogiacc(rport, NULL);
463 break;
464
465 case RPSM_EVENT_SCN:
466 /**
467 * Ignore SCN - wait for PLOGI response.
468 */
469 break;
470
471 case RPSM_EVENT_DELETE:
472 bfa_sm_set_state(rport, bfa_fcs_rport_sm_uninit);
473 bfa_fcxp_discard(rport->fcxp);
474 bfa_fcs_rport_free(rport);
475 break;
476
477 case RPSM_EVENT_PLOGI_COMP:
478 bfa_sm_set_state(rport, bfa_fcs_rport_sm_hal_online);
479 bfa_fcxp_discard(rport->fcxp);
480 bfa_fcs_rport_hal_online(rport);
481 break;
482
483 default:
484 bfa_sm_fault(rport->fcs, event);
485 }
486 }
487
488 /**
489 * PLOGI is complete. Awaiting BFA rport online callback. FC-4s
490 * are offline.
491 */
492 static void
493 bfa_fcs_rport_sm_hal_online(struct bfa_fcs_rport_s *rport,
494 enum rport_event event)
495 {
496 bfa_trc(rport->fcs, rport->pwwn);
497 bfa_trc(rport->fcs, rport->pid);
498 bfa_trc(rport->fcs, event);
499
500 switch (event) {
501 case RPSM_EVENT_HCB_ONLINE:
502 bfa_sm_set_state(rport, bfa_fcs_rport_sm_online);
503 bfa_fcs_rport_online_action(rport);
504 break;
505
506 case RPSM_EVENT_LOGO_RCVD:
507 bfa_sm_set_state(rport, bfa_fcs_rport_sm_hcb_logorcv);
508 bfa_rport_offline(rport->bfa_rport);
509 break;
510
511 case RPSM_EVENT_LOGO_IMP:
512 case RPSM_EVENT_ADDRESS_CHANGE:
513 bfa_sm_set_state(rport, bfa_fcs_rport_sm_hcb_offline);
514 bfa_rport_offline(rport->bfa_rport);
515 break;
516
517 case RPSM_EVENT_PLOGI_RCVD:
518 bfa_sm_set_state(rport, bfa_fcs_rport_sm_plogiacc_sending);
519 bfa_rport_offline(rport->bfa_rport);
520 bfa_fcs_rport_send_plogiacc(rport, NULL);
521 break;
522
523 case RPSM_EVENT_DELETE:
524 bfa_sm_set_state(rport, bfa_fcs_rport_sm_hcb_logosend);
525 bfa_rport_offline(rport->bfa_rport);
526 break;
527
528 case RPSM_EVENT_SCN:
529 /**
530 * @todo
531 * Ignore SCN - PLOGI just completed, FC-4 login should detect
532 * device failures.
533 */
534 break;
535
536 default:
537 bfa_sm_fault(rport->fcs, event);
538 }
539 }
540
541 /**
542 * Rport is ONLINE. FC-4s active.
543 */
544 static void
545 bfa_fcs_rport_sm_online(struct bfa_fcs_rport_s *rport, enum rport_event event)
546 {
547 bfa_trc(rport->fcs, rport->pwwn);
548 bfa_trc(rport->fcs, rport->pid);
549 bfa_trc(rport->fcs, event);
550
551 switch (event) {
552 case RPSM_EVENT_SCN:
553 /**
554 * Pause FC-4 activity till rport is authenticated.
555 * In switched fabrics, check presence of device in nameserver
556 * first.
557 */
558 bfa_fcs_rport_fc4_pause(rport);
559
560 if (bfa_fcs_fabric_is_switched(rport->port->fabric)) {
561 bfa_sm_set_state(rport,
562 bfa_fcs_rport_sm_nsquery_sending);
563 rport->ns_retries = 0;
564 bfa_fcs_rport_send_gidpn(rport, NULL);
565 } else {
566 bfa_sm_set_state(rport, bfa_fcs_rport_sm_adisc_sending);
567 bfa_fcs_rport_send_adisc(rport, NULL);
568 }
569 break;
570
571 case RPSM_EVENT_PLOGI_RCVD:
572 case RPSM_EVENT_LOGO_IMP:
573 case RPSM_EVENT_ADDRESS_CHANGE:
574 bfa_sm_set_state(rport, bfa_fcs_rport_sm_fc4_offline);
575 bfa_fcs_rport_offline_action(rport);
576 break;
577
578 case RPSM_EVENT_DELETE:
579 bfa_sm_set_state(rport, bfa_fcs_rport_sm_fc4_logosend);
580 bfa_fcs_rport_offline_action(rport);
581 break;
582
583 case RPSM_EVENT_LOGO_RCVD:
584 bfa_sm_set_state(rport, bfa_fcs_rport_sm_fc4_logorcv);
585 bfa_fcs_rport_offline_action(rport);
586 break;
587
588 case RPSM_EVENT_PLOGI_COMP:
589 break;
590
591 default:
592 bfa_sm_fault(rport->fcs, event);
593 }
594 }
595
596 /**
597 * An SCN event is received in ONLINE state. NS query is being sent
598 * prior to ADISC authentication with rport. FC-4s are paused.
599 */
600 static void
601 bfa_fcs_rport_sm_nsquery_sending(struct bfa_fcs_rport_s *rport,
602 enum rport_event event)
603 {
604 bfa_trc(rport->fcs, rport->pwwn);
605 bfa_trc(rport->fcs, rport->pid);
606 bfa_trc(rport->fcs, event);
607
608 switch (event) {
609 case RPSM_EVENT_FCXP_SENT:
610 bfa_sm_set_state(rport, bfa_fcs_rport_sm_nsquery);
611 break;
612
613 case RPSM_EVENT_DELETE:
614 bfa_sm_set_state(rport, bfa_fcs_rport_sm_fc4_logosend);
615 bfa_fcxp_walloc_cancel(rport->fcs->bfa, &rport->fcxp_wqe);
616 bfa_fcs_rport_offline_action(rport);
617 break;
618
619 case RPSM_EVENT_SCN:
620 /**
621 * ignore SCN, wait for response to query itself
622 */
623 break;
624
625 case RPSM_EVENT_LOGO_RCVD:
626 bfa_sm_set_state(rport, bfa_fcs_rport_sm_fc4_logorcv);
627 bfa_fcxp_walloc_cancel(rport->fcs->bfa, &rport->fcxp_wqe);
628 bfa_fcs_rport_offline_action(rport);
629 break;
630
631 case RPSM_EVENT_LOGO_IMP:
632 rport->pid = 0;
633 bfa_sm_set_state(rport, bfa_fcs_rport_sm_offline);
634 bfa_fcxp_walloc_cancel(rport->fcs->bfa, &rport->fcxp_wqe);
635 bfa_timer_start(rport->fcs->bfa, &rport->timer,
636 bfa_fcs_rport_timeout, rport,
637 bfa_fcs_rport_del_timeout);
638 break;
639
640 case RPSM_EVENT_PLOGI_RCVD:
641 case RPSM_EVENT_ADDRESS_CHANGE:
642 case RPSM_EVENT_PLOGI_COMP:
643 bfa_sm_set_state(rport, bfa_fcs_rport_sm_fc4_offline);
644 bfa_fcxp_walloc_cancel(rport->fcs->bfa, &rport->fcxp_wqe);
645 bfa_fcs_rport_offline_action(rport);
646 break;
647
648 default:
649 bfa_sm_fault(rport->fcs, event);
650 }
651 }
652
653 /**
654 * An SCN event is received in ONLINE state. NS query is sent to rport.
655 * FC-4s are paused.
656 */
657 static void
658 bfa_fcs_rport_sm_nsquery(struct bfa_fcs_rport_s *rport, enum rport_event event)
659 {
660 bfa_trc(rport->fcs, rport->pwwn);
661 bfa_trc(rport->fcs, rport->pid);
662 bfa_trc(rport->fcs, event);
663
664 switch (event) {
665 case RPSM_EVENT_ACCEPTED:
666 bfa_sm_set_state(rport, bfa_fcs_rport_sm_adisc_sending);
667 bfa_fcs_rport_send_adisc(rport, NULL);
668 break;
669
670 case RPSM_EVENT_FAILED:
671 rport->ns_retries++;
672 if (rport->ns_retries < BFA_FCS_RPORT_MAX_RETRIES) {
673 bfa_sm_set_state(rport,
674 bfa_fcs_rport_sm_nsquery_sending);
675 bfa_fcs_rport_send_gidpn(rport, NULL);
676 } else {
677 bfa_sm_set_state(rport, bfa_fcs_rport_sm_fc4_offline);
678 bfa_fcs_rport_offline_action(rport);
679 }
680 break;
681
682 case RPSM_EVENT_DELETE:
683 bfa_sm_set_state(rport, bfa_fcs_rport_sm_fc4_logosend);
684 bfa_fcxp_discard(rport->fcxp);
685 bfa_fcs_rport_offline_action(rport);
686 break;
687
688 case RPSM_EVENT_SCN:
689 break;
690
691 case RPSM_EVENT_LOGO_RCVD:
692 bfa_sm_set_state(rport, bfa_fcs_rport_sm_fc4_logorcv);
693 bfa_fcxp_discard(rport->fcxp);
694 bfa_fcs_rport_offline_action(rport);
695 break;
696
697 case RPSM_EVENT_PLOGI_COMP:
698 case RPSM_EVENT_ADDRESS_CHANGE:
699 case RPSM_EVENT_PLOGI_RCVD:
700 case RPSM_EVENT_LOGO_IMP:
701 bfa_sm_set_state(rport, bfa_fcs_rport_sm_fc4_offline);
702 bfa_fcxp_discard(rport->fcxp);
703 bfa_fcs_rport_offline_action(rport);
704 break;
705
706 default:
707 bfa_sm_fault(rport->fcs, event);
708 }
709 }
710
711 /**
712 * An SCN event is received in ONLINE state. ADISC is being sent for
713 * authenticating with rport. FC-4s are paused.
714 */
715 static void
716 bfa_fcs_rport_sm_adisc_sending(struct bfa_fcs_rport_s *rport,
717 enum rport_event event)
718 {
719 bfa_trc(rport->fcs, rport->pwwn);
720 bfa_trc(rport->fcs, rport->pid);
721 bfa_trc(rport->fcs, event);
722
723 switch (event) {
724 case RPSM_EVENT_FCXP_SENT:
725 bfa_sm_set_state(rport, bfa_fcs_rport_sm_adisc);
726 break;
727
728 case RPSM_EVENT_DELETE:
729 bfa_sm_set_state(rport, bfa_fcs_rport_sm_fc4_logosend);
730 bfa_fcxp_walloc_cancel(rport->fcs->bfa, &rport->fcxp_wqe);
731 bfa_fcs_rport_offline_action(rport);
732 break;
733
734 case RPSM_EVENT_LOGO_IMP:
735 case RPSM_EVENT_ADDRESS_CHANGE:
736 bfa_sm_set_state(rport, bfa_fcs_rport_sm_fc4_offline);
737 bfa_fcxp_walloc_cancel(rport->fcs->bfa, &rport->fcxp_wqe);
738 bfa_fcs_rport_offline_action(rport);
739 break;
740
741 case RPSM_EVENT_LOGO_RCVD:
742 bfa_sm_set_state(rport, bfa_fcs_rport_sm_fc4_logorcv);
743 bfa_fcxp_walloc_cancel(rport->fcs->bfa, &rport->fcxp_wqe);
744 bfa_fcs_rport_offline_action(rport);
745 break;
746
747 case RPSM_EVENT_SCN:
748 break;
749
750 case RPSM_EVENT_PLOGI_RCVD:
751 bfa_sm_set_state(rport, bfa_fcs_rport_sm_fc4_offline);
752 bfa_fcxp_walloc_cancel(rport->fcs->bfa, &rport->fcxp_wqe);
753 bfa_fcs_rport_offline_action(rport);
754 break;
755
756 default:
757 bfa_sm_fault(rport->fcs, event);
758 }
759 }
760
761 /**
762 * An SCN event is received in ONLINE state. ADISC is to rport.
763 * FC-4s are paused.
764 */
765 static void
766 bfa_fcs_rport_sm_adisc(struct bfa_fcs_rport_s *rport, enum rport_event event)
767 {
768 bfa_trc(rport->fcs, rport->pwwn);
769 bfa_trc(rport->fcs, rport->pid);
770 bfa_trc(rport->fcs, event);
771
772 switch (event) {
773 case RPSM_EVENT_ACCEPTED:
774 bfa_sm_set_state(rport, bfa_fcs_rport_sm_online);
775 bfa_fcs_rport_fc4_resume(rport);
776 break;
777
778 case RPSM_EVENT_PLOGI_RCVD:
779 /**
780 * Too complex to cleanup FC-4 & rport and then acc to PLOGI.
781 * At least go offline when a PLOGI is received.
782 */
783 bfa_fcxp_discard(rport->fcxp);
784 /*
785 * !!! fall through !!!
786 */
787
788 case RPSM_EVENT_FAILED:
789 case RPSM_EVENT_ADDRESS_CHANGE:
790 bfa_sm_set_state(rport, bfa_fcs_rport_sm_fc4_offline);
791 bfa_fcs_rport_offline_action(rport);
792 break;
793
794 case RPSM_EVENT_DELETE:
795 bfa_sm_set_state(rport, bfa_fcs_rport_sm_fc4_logosend);
796 bfa_fcxp_discard(rport->fcxp);
797 bfa_fcs_rport_offline_action(rport);
798 break;
799
800 case RPSM_EVENT_SCN:
801 /**
802 * already processing RSCN
803 */
804 break;
805
806 case RPSM_EVENT_LOGO_IMP:
807 bfa_sm_set_state(rport, bfa_fcs_rport_sm_fc4_offline);
808 bfa_fcxp_discard(rport->fcxp);
809 bfa_fcs_rport_offline_action(rport);
810 break;
811
812 case RPSM_EVENT_LOGO_RCVD:
813 bfa_sm_set_state(rport, bfa_fcs_rport_sm_fc4_logorcv);
814 bfa_fcxp_discard(rport->fcxp);
815 bfa_fcs_rport_offline_action(rport);
816 break;
817
818 default:
819 bfa_sm_fault(rport->fcs, event);
820 }
821 }
822
823 /**
824 * Rport has sent LOGO. Awaiting FC-4 offline completion callback.
825 */
826 static void
827 bfa_fcs_rport_sm_fc4_logorcv(struct bfa_fcs_rport_s *rport,
828 enum rport_event event)
829 {
830 bfa_trc(rport->fcs, rport->pwwn);
831 bfa_trc(rport->fcs, rport->pid);
832 bfa_trc(rport->fcs, event);
833
834 switch (event) {
835 case RPSM_EVENT_FC4_OFFLINE:
836 bfa_sm_set_state(rport, bfa_fcs_rport_sm_hcb_logorcv);
837 bfa_rport_offline(rport->bfa_rport);
838 break;
839
840 case RPSM_EVENT_DELETE:
841 bfa_sm_set_state(rport, bfa_fcs_rport_sm_fc4_logosend);
842 break;
843
844 case RPSM_EVENT_LOGO_RCVD:
845 case RPSM_EVENT_ADDRESS_CHANGE:
846 break;
847
848 default:
849 bfa_sm_fault(rport->fcs, event);
850 }
851 }
852
853 /**
854 * LOGO needs to be sent to rport. Awaiting FC-4 offline completion
855 * callback.
856 */
857 static void
858 bfa_fcs_rport_sm_fc4_logosend(struct bfa_fcs_rport_s *rport,
859 enum rport_event event)
860 {
861 bfa_trc(rport->fcs, rport->pwwn);
862 bfa_trc(rport->fcs, rport->pid);
863 bfa_trc(rport->fcs, event);
864
865 switch (event) {
866 case RPSM_EVENT_FC4_OFFLINE:
867 bfa_sm_set_state(rport, bfa_fcs_rport_sm_hcb_logosend);
868 bfa_rport_offline(rport->bfa_rport);
869 break;
870
871 default:
872 bfa_sm_fault(rport->fcs, event);
873 }
874 }
875
876 /**
877 * Rport is going offline. Awaiting FC-4 offline completion callback.
878 */
879 static void
880 bfa_fcs_rport_sm_fc4_offline(struct bfa_fcs_rport_s *rport,
881 enum rport_event event)
882 {
883 bfa_trc(rport->fcs, rport->pwwn);
884 bfa_trc(rport->fcs, rport->pid);
885 bfa_trc(rport->fcs, event);
886
887 switch (event) {
888 case RPSM_EVENT_FC4_OFFLINE:
889 bfa_sm_set_state(rport, bfa_fcs_rport_sm_hcb_offline);
890 bfa_rport_offline(rport->bfa_rport);
891 break;
892
893 case RPSM_EVENT_SCN:
894 case RPSM_EVENT_LOGO_IMP:
895 case RPSM_EVENT_LOGO_RCVD:
896 case RPSM_EVENT_ADDRESS_CHANGE:
897 /**
898 * rport is already going offline.
899 * SCN - ignore and wait till transitioning to offline state
900 */
901 break;
902
903 case RPSM_EVENT_DELETE:
904 bfa_sm_set_state(rport, bfa_fcs_rport_sm_fc4_logosend);
905 break;
906
907 default:
908 bfa_sm_fault(rport->fcs, event);
909 }
910 }
911
912 /**
913 * Rport is offline. FC-4s are offline. Awaiting BFA rport offline
914 * callback.
915 */
916 static void
917 bfa_fcs_rport_sm_hcb_offline(struct bfa_fcs_rport_s *rport,
918 enum rport_event event)
919 {
920 bfa_trc(rport->fcs, rport->pwwn);
921 bfa_trc(rport->fcs, rport->pid);
922 bfa_trc(rport->fcs, event);
923
924 switch (event) {
925 case RPSM_EVENT_HCB_OFFLINE:
926 case RPSM_EVENT_ADDRESS_CHANGE:
927 if (bfa_fcs_port_is_online(rport->port)) {
928 if (bfa_fcs_fabric_is_switched(rport->port->fabric)) {
929 bfa_sm_set_state(rport,
930 bfa_fcs_rport_sm_nsdisc_sending);
931 rport->ns_retries = 0;
932 bfa_fcs_rport_send_gidpn(rport, NULL);
933 } else {
934 bfa_sm_set_state(rport,
935 bfa_fcs_rport_sm_plogi_sending);
936 rport->plogi_retries = 0;
937 bfa_fcs_rport_send_plogi(rport, NULL);
938 }
939 } else {
940 rport->pid = 0;
941 bfa_sm_set_state(rport, bfa_fcs_rport_sm_offline);
942 bfa_timer_start(rport->fcs->bfa, &rport->timer,
943 bfa_fcs_rport_timeout, rport,
944 bfa_fcs_rport_del_timeout);
945 }
946 break;
947
948 case RPSM_EVENT_DELETE:
949 bfa_sm_set_state(rport, bfa_fcs_rport_sm_uninit);
950 bfa_fcs_rport_free(rport);
951 break;
952
953 case RPSM_EVENT_SCN:
954 case RPSM_EVENT_LOGO_RCVD:
955 /**
956 * Ignore, already offline.
957 */
958 break;
959
960 default:
961 bfa_sm_fault(rport->fcs, event);
962 }
963 }
964
965 /**
966 * Rport is offline. FC-4s are offline. Awaiting BFA rport offline
967 * callback to send LOGO accept.
968 */
969 static void
970 bfa_fcs_rport_sm_hcb_logorcv(struct bfa_fcs_rport_s *rport,
971 enum rport_event event)
972 {
973 bfa_trc(rport->fcs, rport->pwwn);
974 bfa_trc(rport->fcs, rport->pid);
975 bfa_trc(rport->fcs, event);
976
977 switch (event) {
978 case RPSM_EVENT_HCB_OFFLINE:
979 case RPSM_EVENT_ADDRESS_CHANGE:
980 if (rport->pid)
981 bfa_fcs_rport_send_logo_acc(rport);
982 /*
983 * If the lport is online and if the rport is not a well known
984 * address port, we try to re-discover the r-port.
985 */
986 if (bfa_fcs_port_is_online(rport->port)
987 && (!BFA_FCS_PID_IS_WKA(rport->pid))) {
988 bfa_sm_set_state(rport,
989 bfa_fcs_rport_sm_nsdisc_sending);
990 rport->ns_retries = 0;
991 bfa_fcs_rport_send_gidpn(rport, NULL);
992 } else {
993 /*
994 * if it is not a well known address, reset the pid to
995 *
996 */
997 if (!BFA_FCS_PID_IS_WKA(rport->pid))
998 rport->pid = 0;
999 bfa_sm_set_state(rport, bfa_fcs_rport_sm_offline);
1000 bfa_timer_start(rport->fcs->bfa, &rport->timer,
1001 bfa_fcs_rport_timeout, rport,
1002 bfa_fcs_rport_del_timeout);
1003 }
1004 break;
1005
1006 case RPSM_EVENT_DELETE:
1007 bfa_sm_set_state(rport, bfa_fcs_rport_sm_hcb_logosend);
1008 break;
1009
1010 case RPSM_EVENT_LOGO_IMP:
1011 bfa_sm_set_state(rport, bfa_fcs_rport_sm_hcb_offline);
1012 break;
1013
1014 case RPSM_EVENT_LOGO_RCVD:
1015 /**
1016 * Ignore - already processing a LOGO.
1017 */
1018 break;
1019
1020 default:
1021 bfa_sm_fault(rport->fcs, event);
1022 }
1023 }
1024
1025 /**
1026 * Rport is being deleted. FC-4s are offline. Awaiting BFA rport offline
1027 * callback to send LOGO.
1028 */
1029 static void
1030 bfa_fcs_rport_sm_hcb_logosend(struct bfa_fcs_rport_s *rport,
1031 enum rport_event event)
1032 {
1033 bfa_trc(rport->fcs, rport->pwwn);
1034 bfa_trc(rport->fcs, rport->pid);
1035 bfa_trc(rport->fcs, event);
1036
1037 switch (event) {
1038 case RPSM_EVENT_HCB_OFFLINE:
1039 bfa_sm_set_state(rport, bfa_fcs_rport_sm_logo_sending);
1040 bfa_fcs_rport_send_logo(rport, NULL);
1041 break;
1042
1043 case RPSM_EVENT_LOGO_RCVD:
1044 case RPSM_EVENT_ADDRESS_CHANGE:
1045 break;
1046
1047 default:
1048 bfa_sm_fault(rport->fcs, event);
1049 }
1050 }
1051
1052 /**
1053 * Rport is being deleted. FC-4s are offline. LOGO is being sent.
1054 */
1055 static void
1056 bfa_fcs_rport_sm_logo_sending(struct bfa_fcs_rport_s *rport,
1057 enum rport_event event)
1058 {
1059 bfa_trc(rport->fcs, rport->pwwn);
1060 bfa_trc(rport->fcs, rport->pid);
1061 bfa_trc(rport->fcs, event);
1062
1063 switch (event) {
1064 case RPSM_EVENT_FCXP_SENT:
1065 /*
1066 * Once LOGO is sent, we donot wait for the response
1067 */
1068 bfa_sm_set_state(rport, bfa_fcs_rport_sm_uninit);
1069 bfa_fcs_rport_free(rport);
1070 break;
1071
1072 case RPSM_EVENT_SCN:
1073 case RPSM_EVENT_ADDRESS_CHANGE:
1074 break;
1075
1076 case RPSM_EVENT_LOGO_RCVD:
1077 bfa_sm_set_state(rport, bfa_fcs_rport_sm_uninit);
1078 bfa_fcxp_walloc_cancel(rport->fcs->bfa, &rport->fcxp_wqe);
1079 bfa_fcs_rport_free(rport);
1080 break;
1081
1082 default:
1083 bfa_sm_fault(rport->fcs, event);
1084 }
1085 }
1086
1087 /**
1088 * Rport is offline. FC-4s are offline. BFA rport is offline.
1089 * Timer active to delete stale rport.
1090 */
1091 static void
1092 bfa_fcs_rport_sm_offline(struct bfa_fcs_rport_s *rport, enum rport_event event)
1093 {
1094 bfa_trc(rport->fcs, rport->pwwn);
1095 bfa_trc(rport->fcs, rport->pid);
1096 bfa_trc(rport->fcs, event);
1097
1098 switch (event) {
1099 case RPSM_EVENT_TIMEOUT:
1100 bfa_sm_set_state(rport, bfa_fcs_rport_sm_uninit);
1101 bfa_fcs_rport_free(rport);
1102 break;
1103
1104 case RPSM_EVENT_SCN:
1105 case RPSM_EVENT_ADDRESS_CHANGE:
1106 bfa_sm_set_state(rport, bfa_fcs_rport_sm_nsdisc_sending);
1107 bfa_timer_stop(&rport->timer);
1108 rport->ns_retries = 0;
1109 bfa_fcs_rport_send_gidpn(rport, NULL);
1110 break;
1111
1112 case RPSM_EVENT_DELETE:
1113 bfa_sm_set_state(rport, bfa_fcs_rport_sm_uninit);
1114 bfa_timer_stop(&rport->timer);
1115 bfa_fcs_rport_free(rport);
1116 break;
1117
1118 case RPSM_EVENT_PLOGI_RCVD:
1119 bfa_sm_set_state(rport, bfa_fcs_rport_sm_plogiacc_sending);
1120 bfa_timer_stop(&rport->timer);
1121 bfa_fcs_rport_send_plogiacc(rport, NULL);
1122 break;
1123
1124 case RPSM_EVENT_LOGO_RCVD:
1125 case RPSM_EVENT_LOGO_IMP:
1126 break;
1127
1128 case RPSM_EVENT_PLOGI_COMP:
1129 bfa_sm_set_state(rport, bfa_fcs_rport_sm_hal_online);
1130 bfa_timer_stop(&rport->timer);
1131 bfa_fcs_rport_hal_online(rport);
1132 break;
1133
1134 case RPSM_EVENT_PLOGI_SEND:
1135 bfa_timer_stop(&rport->timer);
1136 bfa_sm_set_state(rport, bfa_fcs_rport_sm_plogi_sending);
1137 rport->plogi_retries = 0;
1138 bfa_fcs_rport_send_plogi(rport, NULL);
1139 break;
1140
1141 default:
1142 bfa_sm_fault(rport->fcs, event);
1143 }
1144 }
1145
1146 /**
1147 * Rport address has changed. Nameserver discovery request is being sent.
1148 */
1149 static void
1150 bfa_fcs_rport_sm_nsdisc_sending(struct bfa_fcs_rport_s *rport,
1151 enum rport_event event)
1152 {
1153 bfa_trc(rport->fcs, rport->pwwn);
1154 bfa_trc(rport->fcs, rport->pid);
1155 bfa_trc(rport->fcs, event);
1156
1157 switch (event) {
1158 case RPSM_EVENT_FCXP_SENT:
1159 bfa_sm_set_state(rport, bfa_fcs_rport_sm_nsdisc_sent);
1160 break;
1161
1162 case RPSM_EVENT_DELETE:
1163 bfa_sm_set_state(rport, bfa_fcs_rport_sm_uninit);
1164 bfa_fcxp_walloc_cancel(rport->fcs->bfa, &rport->fcxp_wqe);
1165 bfa_fcs_rport_free(rport);
1166 break;
1167
1168 case RPSM_EVENT_PLOGI_RCVD:
1169 bfa_sm_set_state(rport, bfa_fcs_rport_sm_plogiacc_sending);
1170 bfa_fcxp_walloc_cancel(rport->fcs->bfa, &rport->fcxp_wqe);
1171 bfa_fcs_rport_send_plogiacc(rport, NULL);
1172 break;
1173
1174 case RPSM_EVENT_SCN:
1175 case RPSM_EVENT_LOGO_RCVD:
1176 case RPSM_EVENT_PLOGI_SEND:
1177 break;
1178
1179 case RPSM_EVENT_ADDRESS_CHANGE:
1180 rport->ns_retries = 0; /* reset the retry count */
1181 break;
1182
1183 case RPSM_EVENT_LOGO_IMP:
1184 bfa_sm_set_state(rport, bfa_fcs_rport_sm_offline);
1185 bfa_fcxp_walloc_cancel(rport->fcs->bfa, &rport->fcxp_wqe);
1186 bfa_timer_start(rport->fcs->bfa, &rport->timer,
1187 bfa_fcs_rport_timeout, rport,
1188 bfa_fcs_rport_del_timeout);
1189 break;
1190
1191 case RPSM_EVENT_PLOGI_COMP:
1192 bfa_sm_set_state(rport, bfa_fcs_rport_sm_hal_online);
1193 bfa_fcxp_walloc_cancel(rport->fcs->bfa, &rport->fcxp_wqe);
1194 bfa_fcs_rport_hal_online(rport);
1195 break;
1196
1197 default:
1198 bfa_sm_fault(rport->fcs, event);
1199 }
1200 }
1201
1202 /**
1203 * Nameserver discovery failed. Waiting for timeout to retry.
1204 */
1205 static void
1206 bfa_fcs_rport_sm_nsdisc_retry(struct bfa_fcs_rport_s *rport,
1207 enum rport_event event)
1208 {
1209 bfa_trc(rport->fcs, rport->pwwn);
1210 bfa_trc(rport->fcs, rport->pid);
1211 bfa_trc(rport->fcs, event);
1212
1213 switch (event) {
1214 case RPSM_EVENT_TIMEOUT:
1215 bfa_sm_set_state(rport, bfa_fcs_rport_sm_nsdisc_sending);
1216 bfa_fcs_rport_send_gidpn(rport, NULL);
1217 break;
1218
1219 case RPSM_EVENT_SCN:
1220 case RPSM_EVENT_ADDRESS_CHANGE:
1221 bfa_sm_set_state(rport, bfa_fcs_rport_sm_nsdisc_sending);
1222 bfa_timer_stop(&rport->timer);
1223 rport->ns_retries = 0;
1224 bfa_fcs_rport_send_gidpn(rport, NULL);
1225 break;
1226
1227 case RPSM_EVENT_DELETE:
1228 bfa_sm_set_state(rport, bfa_fcs_rport_sm_uninit);
1229 bfa_timer_stop(&rport->timer);
1230 bfa_fcs_rport_free(rport);
1231 break;
1232
1233 case RPSM_EVENT_PLOGI_RCVD:
1234 bfa_sm_set_state(rport, bfa_fcs_rport_sm_plogiacc_sending);
1235 bfa_timer_stop(&rport->timer);
1236 bfa_fcs_rport_send_plogiacc(rport, NULL);
1237 break;
1238
1239 case RPSM_EVENT_LOGO_IMP:
1240 rport->pid = 0;
1241 bfa_sm_set_state(rport, bfa_fcs_rport_sm_offline);
1242 bfa_timer_stop(&rport->timer);
1243 bfa_timer_start(rport->fcs->bfa, &rport->timer,
1244 bfa_fcs_rport_timeout, rport,
1245 bfa_fcs_rport_del_timeout);
1246 break;
1247
1248 case RPSM_EVENT_LOGO_RCVD:
1249 bfa_fcs_rport_send_logo_acc(rport);
1250 break;
1251
1252 case RPSM_EVENT_PLOGI_COMP:
1253 bfa_sm_set_state(rport, bfa_fcs_rport_sm_hal_online);
1254 bfa_timer_stop(&rport->timer);
1255 bfa_fcs_rport_hal_online(rport);
1256 break;
1257
1258 default:
1259 bfa_sm_fault(rport->fcs, event);
1260 }
1261 }
1262
1263 /**
1264 * Rport address has changed. Nameserver discovery request is sent.
1265 */
1266 static void
1267 bfa_fcs_rport_sm_nsdisc_sent(struct bfa_fcs_rport_s *rport,
1268 enum rport_event event)
1269 {
1270 bfa_trc(rport->fcs, rport->pwwn);
1271 bfa_trc(rport->fcs, rport->pid);
1272 bfa_trc(rport->fcs, event);
1273
1274 switch (event) {
1275 case RPSM_EVENT_ACCEPTED:
1276 case RPSM_EVENT_ADDRESS_CHANGE:
1277 if (rport->pid) {
1278 bfa_sm_set_state(rport, bfa_fcs_rport_sm_plogi_sending);
1279 bfa_fcs_rport_send_plogi(rport, NULL);
1280 } else {
1281 bfa_sm_set_state(rport,
1282 bfa_fcs_rport_sm_nsdisc_sending);
1283 rport->ns_retries = 0;
1284 bfa_fcs_rport_send_gidpn(rport, NULL);
1285 }
1286 break;
1287
1288 case RPSM_EVENT_FAILED:
1289 rport->ns_retries++;
1290 if (rport->ns_retries < BFA_FCS_RPORT_MAX_RETRIES) {
1291 bfa_sm_set_state(rport,
1292 bfa_fcs_rport_sm_nsdisc_sending);
1293 bfa_fcs_rport_send_gidpn(rport, NULL);
1294 } else {
1295 rport->pid = 0;
1296 bfa_sm_set_state(rport, bfa_fcs_rport_sm_offline);
1297 bfa_timer_start(rport->fcs->bfa, &rport->timer,
1298 bfa_fcs_rport_timeout, rport,
1299 bfa_fcs_rport_del_timeout);
1300 };
1301 break;
1302
1303 case RPSM_EVENT_DELETE:
1304 bfa_sm_set_state(rport, bfa_fcs_rport_sm_uninit);
1305 bfa_fcxp_discard(rport->fcxp);
1306 bfa_fcs_rport_free(rport);
1307 break;
1308
1309 case RPSM_EVENT_PLOGI_RCVD:
1310 bfa_sm_set_state(rport, bfa_fcs_rport_sm_plogiacc_sending);
1311 bfa_fcxp_discard(rport->fcxp);
1312 bfa_fcs_rport_send_plogiacc(rport, NULL);
1313 break;
1314
1315 case RPSM_EVENT_LOGO_IMP:
1316 rport->pid = 0;
1317 bfa_sm_set_state(rport, bfa_fcs_rport_sm_offline);
1318 bfa_fcxp_discard(rport->fcxp);
1319 bfa_timer_start(rport->fcs->bfa, &rport->timer,
1320 bfa_fcs_rport_timeout, rport,
1321 bfa_fcs_rport_del_timeout);
1322 break;
1323
1324 case RPSM_EVENT_SCN:
1325 /**
1326 * ignore, wait for NS query response
1327 */
1328 break;
1329
1330 case RPSM_EVENT_LOGO_RCVD:
1331 /**
1332 * Not logged-in yet. Accept LOGO.
1333 */
1334 bfa_fcs_rport_send_logo_acc(rport);
1335 break;
1336
1337 case RPSM_EVENT_PLOGI_COMP:
1338 bfa_sm_set_state(rport, bfa_fcs_rport_sm_hal_online);
1339 bfa_fcxp_discard(rport->fcxp);
1340 bfa_fcs_rport_hal_online(rport);
1341 break;
1342
1343 default:
1344 bfa_sm_fault(rport->fcs, event);
1345 }
1346 }
1347
1348
1349
1350 /**
1351 * fcs_rport_private FCS RPORT provate functions
1352 */
1353
1354 static void
1355 bfa_fcs_rport_send_plogi(void *rport_cbarg, struct bfa_fcxp_s *fcxp_alloced)
1356 {
1357 struct bfa_fcs_rport_s *rport = rport_cbarg;
1358 struct bfa_fcs_port_s *port = rport->port;
1359 struct fchs_s fchs;
1360 int len;
1361 struct bfa_fcxp_s *fcxp;
1362
1363 bfa_trc(rport->fcs, rport->pwwn);
1364
1365 fcxp = fcxp_alloced ? fcxp_alloced : bfa_fcs_fcxp_alloc(port->fcs);
1366 if (!fcxp) {
1367 bfa_fcxp_alloc_wait(port->fcs->bfa, &rport->fcxp_wqe,
1368 bfa_fcs_rport_send_plogi, rport);
1369 return;
1370 }
1371 rport->fcxp = fcxp;
1372
1373 len = fc_plogi_build(&fchs, bfa_fcxp_get_reqbuf(fcxp), rport->pid,
1374 bfa_fcs_port_get_fcid(port), 0,
1375 port->port_cfg.pwwn, port->port_cfg.nwwn,
1376 bfa_fcport_get_maxfrsize(port->fcs->bfa));
1377
1378 bfa_fcxp_send(fcxp, NULL, port->fabric->vf_id, port->lp_tag, BFA_FALSE,
1379 FC_CLASS_3, len, &fchs, bfa_fcs_rport_plogi_response,
1380 (void *)rport, FC_MAX_PDUSZ, FC_RA_TOV);
1381
1382 rport->stats.plogis++;
1383 bfa_sm_send_event(rport, RPSM_EVENT_FCXP_SENT);
1384 }
1385
1386 static void
1387 bfa_fcs_rport_plogi_response(void *fcsarg, struct bfa_fcxp_s *fcxp, void *cbarg,
1388 bfa_status_t req_status, u32 rsp_len,
1389 u32 resid_len, struct fchs_s *rsp_fchs)
1390 {
1391 struct bfa_fcs_rport_s *rport = (struct bfa_fcs_rport_s *)cbarg;
1392 struct fc_logi_s *plogi_rsp;
1393 struct fc_ls_rjt_s *ls_rjt;
1394 struct bfa_fcs_rport_s *twin;
1395 struct list_head *qe;
1396
1397 bfa_trc(rport->fcs, rport->pwwn);
1398
1399 /*
1400 * Sanity Checks
1401 */
1402 if (req_status != BFA_STATUS_OK) {
1403 bfa_trc(rport->fcs, req_status);
1404 rport->stats.plogi_failed++;
1405 bfa_sm_send_event(rport, RPSM_EVENT_FAILED);
1406 return;
1407 }
1408
1409 plogi_rsp = (struct fc_logi_s *) BFA_FCXP_RSP_PLD(fcxp);
1410
1411 /**
1412 * Check for failure first.
1413 */
1414 if (plogi_rsp->els_cmd.els_code != FC_ELS_ACC) {
1415 ls_rjt = (struct fc_ls_rjt_s *) BFA_FCXP_RSP_PLD(fcxp);
1416
1417 bfa_trc(rport->fcs, ls_rjt->reason_code);
1418 bfa_trc(rport->fcs, ls_rjt->reason_code_expl);
1419
1420 rport->stats.plogi_rejects++;
1421 bfa_sm_send_event(rport, RPSM_EVENT_FAILED);
1422 return;
1423 }
1424
1425 /**
1426 * PLOGI is complete. Make sure this device is not one of the known
1427 * device with a new FC port address.
1428 */
1429 list_for_each(qe, &rport->port->rport_q) {
1430 twin = (struct bfa_fcs_rport_s *)qe;
1431 if (twin == rport)
1432 continue;
1433 if (!rport->pwwn && (plogi_rsp->port_name == twin->pwwn)) {
1434 bfa_trc(rport->fcs, twin->pid);
1435 bfa_trc(rport->fcs, rport->pid);
1436
1437 /*
1438 * Update plogi stats in twin
1439 */
1440 twin->stats.plogis += rport->stats.plogis;
1441 twin->stats.plogi_rejects += rport->stats.plogi_rejects;
1442 twin->stats.plogi_timeouts +=
1443 rport->stats.plogi_timeouts;
1444 twin->stats.plogi_failed += rport->stats.plogi_failed;
1445 twin->stats.plogi_rcvd += rport->stats.plogi_rcvd;
1446 twin->stats.plogi_accs++;
1447
1448 bfa_fcs_rport_delete(rport);
1449
1450 bfa_fcs_rport_update(twin, plogi_rsp);
1451 twin->pid = rsp_fchs->s_id;
1452 bfa_sm_send_event(twin, RPSM_EVENT_PLOGI_COMP);
1453 return;
1454 }
1455 }
1456
1457 /**
1458 * Normal login path -- no evil twins.
1459 */
1460 rport->stats.plogi_accs++;
1461 bfa_fcs_rport_update(rport, plogi_rsp);
1462 bfa_sm_send_event(rport, RPSM_EVENT_ACCEPTED);
1463 }
1464
1465 static void
1466 bfa_fcs_rport_send_plogiacc(void *rport_cbarg, struct bfa_fcxp_s *fcxp_alloced)
1467 {
1468 struct bfa_fcs_rport_s *rport = rport_cbarg;
1469 struct bfa_fcs_port_s *port = rport->port;
1470 struct fchs_s fchs;
1471 int len;
1472 struct bfa_fcxp_s *fcxp;
1473
1474 bfa_trc(rport->fcs, rport->pwwn);
1475 bfa_trc(rport->fcs, rport->reply_oxid);
1476
1477 fcxp = fcxp_alloced ? fcxp_alloced : bfa_fcs_fcxp_alloc(port->fcs);
1478 if (!fcxp) {
1479 bfa_fcxp_alloc_wait(port->fcs->bfa, &rport->fcxp_wqe,
1480 bfa_fcs_rport_send_plogiacc, rport);
1481 return;
1482 }
1483 rport->fcxp = fcxp;
1484
1485 len = fc_plogi_acc_build(&fchs, bfa_fcxp_get_reqbuf(fcxp), rport->pid,
1486 bfa_fcs_port_get_fcid(port), rport->reply_oxid,
1487 port->port_cfg.pwwn, port->port_cfg.nwwn,
1488 bfa_fcport_get_maxfrsize(port->fcs->bfa));
1489
1490 bfa_fcxp_send(fcxp, NULL, port->fabric->vf_id, port->lp_tag, BFA_FALSE,
1491 FC_CLASS_3, len, &fchs, NULL, NULL, FC_MAX_PDUSZ, 0);
1492
1493 bfa_sm_send_event(rport, RPSM_EVENT_FCXP_SENT);
1494 }
1495
1496 static void
1497 bfa_fcs_rport_send_adisc(void *rport_cbarg, struct bfa_fcxp_s *fcxp_alloced)
1498 {
1499 struct bfa_fcs_rport_s *rport = rport_cbarg;
1500 struct bfa_fcs_port_s *port = rport->port;
1501 struct fchs_s fchs;
1502 int len;
1503 struct bfa_fcxp_s *fcxp;
1504
1505 bfa_trc(rport->fcs, rport->pwwn);
1506
1507 fcxp = fcxp_alloced ? fcxp_alloced : bfa_fcs_fcxp_alloc(port->fcs);
1508 if (!fcxp) {
1509 bfa_fcxp_alloc_wait(port->fcs->bfa, &rport->fcxp_wqe,
1510 bfa_fcs_rport_send_adisc, rport);
1511 return;
1512 }
1513 rport->fcxp = fcxp;
1514
1515 len = fc_adisc_build(&fchs, bfa_fcxp_get_reqbuf(fcxp), rport->pid,
1516 bfa_fcs_port_get_fcid(port), 0,
1517 port->port_cfg.pwwn, port->port_cfg.nwwn);
1518
1519 bfa_fcxp_send(fcxp, NULL, port->fabric->vf_id, port->lp_tag, BFA_FALSE,
1520 FC_CLASS_3, len, &fchs, bfa_fcs_rport_adisc_response,
1521 rport, FC_MAX_PDUSZ, FC_RA_TOV);
1522
1523 rport->stats.adisc_sent++;
1524 bfa_sm_send_event(rport, RPSM_EVENT_FCXP_SENT);
1525 }
1526
1527 static void
1528 bfa_fcs_rport_adisc_response(void *fcsarg, struct bfa_fcxp_s *fcxp, void *cbarg,
1529 bfa_status_t req_status, u32 rsp_len,
1530 u32 resid_len, struct fchs_s *rsp_fchs)
1531 {
1532 struct bfa_fcs_rport_s *rport = (struct bfa_fcs_rport_s *)cbarg;
1533 void *pld = bfa_fcxp_get_rspbuf(fcxp);
1534 struct fc_ls_rjt_s *ls_rjt;
1535
1536 if (req_status != BFA_STATUS_OK) {
1537 bfa_trc(rport->fcs, req_status);
1538 rport->stats.adisc_failed++;
1539 bfa_sm_send_event(rport, RPSM_EVENT_FAILED);
1540 return;
1541 }
1542
1543 if (fc_adisc_rsp_parse((struct fc_adisc_s *)pld, rsp_len, rport->pwwn,
1544 rport->nwwn) == FC_PARSE_OK) {
1545 rport->stats.adisc_accs++;
1546 bfa_sm_send_event(rport, RPSM_EVENT_ACCEPTED);
1547 return;
1548 }
1549
1550 rport->stats.adisc_rejects++;
1551 ls_rjt = pld;
1552 bfa_trc(rport->fcs, ls_rjt->els_cmd.els_code);
1553 bfa_trc(rport->fcs, ls_rjt->reason_code);
1554 bfa_trc(rport->fcs, ls_rjt->reason_code_expl);
1555 bfa_sm_send_event(rport, RPSM_EVENT_FAILED);
1556 }
1557
1558 static void
1559 bfa_fcs_rport_send_gidpn(void *rport_cbarg, struct bfa_fcxp_s *fcxp_alloced)
1560 {
1561 struct bfa_fcs_rport_s *rport = rport_cbarg;
1562 struct bfa_fcs_port_s *port = rport->port;
1563 struct fchs_s fchs;
1564 struct bfa_fcxp_s *fcxp;
1565 int len;
1566
1567 bfa_trc(rport->fcs, rport->pid);
1568
1569 fcxp = fcxp_alloced ? fcxp_alloced : bfa_fcs_fcxp_alloc(port->fcs);
1570 if (!fcxp) {
1571 bfa_fcxp_alloc_wait(port->fcs->bfa, &rport->fcxp_wqe,
1572 bfa_fcs_rport_send_gidpn, rport);
1573 return;
1574 }
1575 rport->fcxp = fcxp;
1576
1577 len = fc_gidpn_build(&fchs, bfa_fcxp_get_reqbuf(fcxp),
1578 bfa_fcs_port_get_fcid(port), 0, rport->pwwn);
1579
1580 bfa_fcxp_send(fcxp, NULL, port->fabric->vf_id, port->lp_tag, BFA_FALSE,
1581 FC_CLASS_3, len, &fchs, bfa_fcs_rport_gidpn_response,
1582 (void *)rport, FC_MAX_PDUSZ, FC_RA_TOV);
1583
1584 bfa_sm_send_event(rport, RPSM_EVENT_FCXP_SENT);
1585 }
1586
1587 static void
1588 bfa_fcs_rport_gidpn_response(void *fcsarg, struct bfa_fcxp_s *fcxp, void *cbarg,
1589 bfa_status_t req_status, u32 rsp_len,
1590 u32 resid_len, struct fchs_s *rsp_fchs)
1591 {
1592 struct bfa_fcs_rport_s *rport = (struct bfa_fcs_rport_s *)cbarg;
1593 struct bfa_fcs_rport_s *twin;
1594 struct list_head *qe;
1595 struct ct_hdr_s *cthdr;
1596 struct fcgs_gidpn_resp_s *gidpn_rsp;
1597
1598 bfa_trc(rport->fcs, rport->pwwn);
1599
1600 cthdr = (struct ct_hdr_s *) BFA_FCXP_RSP_PLD(fcxp);
1601 cthdr->cmd_rsp_code = bfa_os_ntohs(cthdr->cmd_rsp_code);
1602
1603 if (cthdr->cmd_rsp_code == CT_RSP_ACCEPT) {
1604 /*
1605 * Check if the pid is the same as before.
1606 */
1607 gidpn_rsp = (struct fcgs_gidpn_resp_s *) (cthdr + 1);
1608
1609 if (gidpn_rsp->dap == rport->pid) {
1610 /*
1611 * Device is online
1612 */
1613 bfa_sm_send_event(rport, RPSM_EVENT_ACCEPTED);
1614 } else {
1615 /*
1616 * Device's PID has changed. We need to cleanup and
1617 * re-login. If there is another device with the the
1618 * newly discovered pid, send an scn notice so that its
1619 * new pid can be discovered.
1620 */
1621 list_for_each(qe, &rport->port->rport_q) {
1622 twin = (struct bfa_fcs_rport_s *)qe;
1623 if (twin == rport)
1624 continue;
1625 if (gidpn_rsp->dap == twin->pid) {
1626 bfa_trc(rport->fcs, twin->pid);
1627 bfa_trc(rport->fcs, rport->pid);
1628
1629 twin->pid = 0;
1630 bfa_sm_send_event(twin,
1631 RPSM_EVENT_ADDRESS_CHANGE);
1632 }
1633 }
1634 rport->pid = gidpn_rsp->dap;
1635 bfa_sm_send_event(rport, RPSM_EVENT_ADDRESS_CHANGE);
1636 }
1637 return;
1638 }
1639
1640 /*
1641 * Reject Response
1642 */
1643 switch (cthdr->reason_code) {
1644 case CT_RSN_LOGICAL_BUSY:
1645 /*
1646 * Need to retry
1647 */
1648 bfa_sm_send_event(rport, RPSM_EVENT_TIMEOUT);
1649 break;
1650
1651 case CT_RSN_UNABLE_TO_PERF:
1652 /*
1653 * device doesn't exist : Start timer to cleanup this later.
1654 */
1655 bfa_sm_send_event(rport, RPSM_EVENT_FAILED);
1656 break;
1657
1658 default:
1659 bfa_sm_send_event(rport, RPSM_EVENT_FAILED);
1660 break;
1661 }
1662 }
1663
1664 /**
1665 * Called to send a logout to the rport.
1666 */
1667 static void
1668 bfa_fcs_rport_send_logo(void *rport_cbarg, struct bfa_fcxp_s *fcxp_alloced)
1669 {
1670 struct bfa_fcs_rport_s *rport = rport_cbarg;
1671 struct bfa_fcs_port_s *port;
1672 struct fchs_s fchs;
1673 struct bfa_fcxp_s *fcxp;
1674 u16 len;
1675
1676 bfa_trc(rport->fcs, rport->pid);
1677
1678 port = rport->port;
1679
1680 fcxp = fcxp_alloced ? fcxp_alloced : bfa_fcs_fcxp_alloc(port->fcs);
1681 if (!fcxp) {
1682 bfa_fcxp_alloc_wait(port->fcs->bfa, &rport->fcxp_wqe,
1683 bfa_fcs_rport_send_logo, rport);
1684 return;
1685 }
1686 rport->fcxp = fcxp;
1687
1688 len = fc_logo_build(&fchs, bfa_fcxp_get_reqbuf(fcxp), rport->pid,
1689 bfa_fcs_port_get_fcid(port), 0,
1690 bfa_fcs_port_get_pwwn(port));
1691
1692 bfa_fcxp_send(fcxp, NULL, port->fabric->vf_id, port->lp_tag, BFA_FALSE,
1693 FC_CLASS_3, len, &fchs, NULL, rport, FC_MAX_PDUSZ,
1694 FC_ED_TOV);
1695
1696 rport->stats.logos++;
1697 bfa_fcxp_discard(rport->fcxp);
1698 bfa_sm_send_event(rport, RPSM_EVENT_FCXP_SENT);
1699 }
1700
1701 /**
1702 * Send ACC for a LOGO received.
1703 */
1704 static void
1705 bfa_fcs_rport_send_logo_acc(void *rport_cbarg)
1706 {
1707 struct bfa_fcs_rport_s *rport = rport_cbarg;
1708 struct bfa_fcs_port_s *port;
1709 struct fchs_s fchs;
1710 struct bfa_fcxp_s *fcxp;
1711 u16 len;
1712
1713 bfa_trc(rport->fcs, rport->pid);
1714
1715 port = rport->port;
1716
1717 fcxp = bfa_fcs_fcxp_alloc(port->fcs);
1718 if (!fcxp)
1719 return;
1720
1721 rport->stats.logo_rcvd++;
1722 len = fc_logo_acc_build(&fchs, bfa_fcxp_get_reqbuf(fcxp), rport->pid,
1723 bfa_fcs_port_get_fcid(port), rport->reply_oxid);
1724
1725 bfa_fcxp_send(fcxp, NULL, port->fabric->vf_id, port->lp_tag, BFA_FALSE,
1726 FC_CLASS_3, len, &fchs, NULL, NULL, FC_MAX_PDUSZ, 0);
1727 }
1728
1729 /**
1730 * This routine will be called by bfa_timer on timer timeouts.
1731 *
1732 * param[in] rport - pointer to bfa_fcs_port_ns_t.
1733 * param[out] rport_status - pointer to return vport status in
1734 *
1735 * return
1736 * void
1737 *
1738 * Special Considerations:
1739 *
1740 * note
1741 */
1742 static void
1743 bfa_fcs_rport_timeout(void *arg)
1744 {
1745 struct bfa_fcs_rport_s *rport = (struct bfa_fcs_rport_s *)arg;
1746
1747 rport->stats.plogi_timeouts++;
1748 bfa_sm_send_event(rport, RPSM_EVENT_TIMEOUT);
1749 }
1750
1751 static void
1752 bfa_fcs_rport_process_prli(struct bfa_fcs_rport_s *rport,
1753 struct fchs_s *rx_fchs, u16 len)
1754 {
1755 struct bfa_fcxp_s *fcxp;
1756 struct fchs_s fchs;
1757 struct bfa_fcs_port_s *port = rport->port;
1758 struct fc_prli_s *prli;
1759
1760 bfa_trc(port->fcs, rx_fchs->s_id);
1761 bfa_trc(port->fcs, rx_fchs->d_id);
1762
1763 rport->stats.prli_rcvd++;
1764
1765 if (BFA_FCS_VPORT_IS_TARGET_MODE(port)) {
1766 /*
1767 * Target Mode : Let the fcptm handle it
1768 */
1769 bfa_fcs_tin_rx_prli(rport->tin, rx_fchs, len);
1770 return;
1771 }
1772
1773 /*
1774 * We are either in Initiator or ipfc Mode
1775 */
1776 prli = (struct fc_prli_s *) (rx_fchs + 1);
1777
1778 if (prli->parampage.servparams.initiator) {
1779 bfa_trc(rport->fcs, prli->parampage.type);
1780 rport->scsi_function = BFA_RPORT_INITIATOR;
1781 bfa_fcs_itnim_is_initiator(rport->itnim);
1782 } else {
1783 /*
1784 * @todo: PRLI from a target ?
1785 */
1786 bfa_trc(port->fcs, rx_fchs->s_id);
1787 rport->scsi_function = BFA_RPORT_TARGET;
1788 }
1789
1790 fcxp = bfa_fcs_fcxp_alloc(port->fcs);
1791 if (!fcxp)
1792 return;
1793
1794 len = fc_prli_acc_build(&fchs, bfa_fcxp_get_reqbuf(fcxp), rx_fchs->s_id,
1795 bfa_fcs_port_get_fcid(port), rx_fchs->ox_id,
1796 port->port_cfg.roles);
1797
1798 bfa_fcxp_send(fcxp, NULL, port->fabric->vf_id, port->lp_tag, BFA_FALSE,
1799 FC_CLASS_3, len, &fchs, NULL, NULL, FC_MAX_PDUSZ, 0);
1800 }
1801
1802 static void
1803 bfa_fcs_rport_process_rpsc(struct bfa_fcs_rport_s *rport,
1804 struct fchs_s *rx_fchs, u16 len)
1805 {
1806 struct bfa_fcxp_s *fcxp;
1807 struct fchs_s fchs;
1808 struct bfa_fcs_port_s *port = rport->port;
1809 struct fc_rpsc_speed_info_s speeds;
1810 struct bfa_pport_attr_s pport_attr;
1811
1812 bfa_trc(port->fcs, rx_fchs->s_id);
1813 bfa_trc(port->fcs, rx_fchs->d_id);
1814
1815 rport->stats.rpsc_rcvd++;
1816 speeds.port_speed_cap =
1817 RPSC_SPEED_CAP_1G | RPSC_SPEED_CAP_2G | RPSC_SPEED_CAP_4G |
1818 RPSC_SPEED_CAP_8G;
1819
1820 /*
1821 * get curent speed from pport attributes from BFA
1822 */
1823 bfa_fcport_get_attr(port->fcs->bfa, &pport_attr);
1824
1825 speeds.port_op_speed = fc_bfa_speed_to_rpsc_operspeed(pport_attr.speed);
1826
1827 fcxp = bfa_fcs_fcxp_alloc(port->fcs);
1828 if (!fcxp)
1829 return;
1830
1831 len = fc_rpsc_acc_build(&fchs, bfa_fcxp_get_reqbuf(fcxp), rx_fchs->s_id,
1832 bfa_fcs_port_get_fcid(port), rx_fchs->ox_id,
1833 &speeds);
1834
1835 bfa_fcxp_send(fcxp, NULL, port->fabric->vf_id, port->lp_tag, BFA_FALSE,
1836 FC_CLASS_3, len, &fchs, NULL, NULL, FC_MAX_PDUSZ, 0);
1837 }
1838
1839 static void
1840 bfa_fcs_rport_process_adisc(struct bfa_fcs_rport_s *rport,
1841 struct fchs_s *rx_fchs, u16 len)
1842 {
1843 struct bfa_fcxp_s *fcxp;
1844 struct fchs_s fchs;
1845 struct bfa_fcs_port_s *port = rport->port;
1846 struct fc_adisc_s *adisc;
1847
1848 bfa_trc(port->fcs, rx_fchs->s_id);
1849 bfa_trc(port->fcs, rx_fchs->d_id);
1850
1851 rport->stats.adisc_rcvd++;
1852
1853 if (BFA_FCS_VPORT_IS_TARGET_MODE(port)) {
1854 /*
1855 * @todo : Target Mode handling
1856 */
1857 bfa_trc(port->fcs, rx_fchs->d_id);
1858 bfa_assert(0);
1859 return;
1860 }
1861
1862 adisc = (struct fc_adisc_s *) (rx_fchs + 1);
1863
1864 /*
1865 * Accept if the itnim for this rport is online. Else reject the ADISC
1866 */
1867 if (bfa_fcs_itnim_get_online_state(rport->itnim) == BFA_STATUS_OK) {
1868
1869 fcxp = bfa_fcs_fcxp_alloc(port->fcs);
1870 if (!fcxp)
1871 return;
1872
1873 len = fc_adisc_acc_build(&fchs, bfa_fcxp_get_reqbuf(fcxp),
1874 rx_fchs->s_id,
1875 bfa_fcs_port_get_fcid(port),
1876 rx_fchs->ox_id, port->port_cfg.pwwn,
1877 port->port_cfg.nwwn);
1878
1879 bfa_fcxp_send(fcxp, NULL, port->fabric->vf_id, port->lp_tag,
1880 BFA_FALSE, FC_CLASS_3, len, &fchs, NULL, NULL,
1881 FC_MAX_PDUSZ, 0);
1882 } else {
1883 rport->stats.adisc_rejected++;
1884 bfa_fcs_rport_send_ls_rjt(rport, rx_fchs,
1885 FC_LS_RJT_RSN_UNABLE_TO_PERF_CMD,
1886 FC_LS_RJT_EXP_LOGIN_REQUIRED);
1887 }
1888
1889 }
1890
1891 static void
1892 bfa_fcs_rport_hal_online(struct bfa_fcs_rport_s *rport)
1893 {
1894 struct bfa_fcs_port_s *port = rport->port;
1895 struct bfa_rport_info_s rport_info;
1896
1897 rport_info.pid = rport->pid;
1898 rport_info.local_pid = port->pid;
1899 rport_info.lp_tag = port->lp_tag;
1900 rport_info.vf_id = port->fabric->vf_id;
1901 rport_info.vf_en = port->fabric->is_vf;
1902 rport_info.fc_class = rport->fc_cos;
1903 rport_info.cisc = rport->cisc;
1904 rport_info.max_frmsz = rport->maxfrsize;
1905 bfa_rport_online(rport->bfa_rport, &rport_info);
1906 }
1907
1908 static void
1909 bfa_fcs_rport_fc4_pause(struct bfa_fcs_rport_s *rport)
1910 {
1911 if (bfa_fcs_port_is_initiator(rport->port))
1912 bfa_fcs_itnim_pause(rport->itnim);
1913
1914 if (bfa_fcs_port_is_target(rport->port))
1915 bfa_fcs_tin_pause(rport->tin);
1916 }
1917
1918 static void
1919 bfa_fcs_rport_fc4_resume(struct bfa_fcs_rport_s *rport)
1920 {
1921 if (bfa_fcs_port_is_initiator(rport->port))
1922 bfa_fcs_itnim_resume(rport->itnim);
1923
1924 if (bfa_fcs_port_is_target(rport->port))
1925 bfa_fcs_tin_resume(rport->tin);
1926 }
1927
1928 static struct bfa_fcs_rport_s *
1929 bfa_fcs_rport_alloc(struct bfa_fcs_port_s *port, wwn_t pwwn, u32 rpid)
1930 {
1931 struct bfa_fcs_s *fcs = port->fcs;
1932 struct bfa_fcs_rport_s *rport;
1933 struct bfad_rport_s *rport_drv;
1934
1935 /**
1936 * allocate rport
1937 */
1938 if (bfa_fcb_rport_alloc(fcs->bfad, &rport, &rport_drv)
1939 != BFA_STATUS_OK) {
1940 bfa_trc(fcs, rpid);
1941 return NULL;
1942 }
1943
1944 /*
1945 * Initialize r-port
1946 */
1947 rport->port = port;
1948 rport->fcs = fcs;
1949 rport->rp_drv = rport_drv;
1950 rport->pid = rpid;
1951 rport->pwwn = pwwn;
1952
1953 /**
1954 * allocate BFA rport
1955 */
1956 rport->bfa_rport = bfa_rport_create(port->fcs->bfa, rport);
1957 if (!rport->bfa_rport) {
1958 bfa_trc(fcs, rpid);
1959 kfree(rport_drv);
1960 return NULL;
1961 }
1962
1963 /**
1964 * allocate FC-4s
1965 */
1966 bfa_assert(bfa_fcs_port_is_initiator(port) ^
1967 bfa_fcs_port_is_target(port));
1968
1969 if (bfa_fcs_port_is_initiator(port)) {
1970 rport->itnim = bfa_fcs_itnim_create(rport);
1971 if (!rport->itnim) {
1972 bfa_trc(fcs, rpid);
1973 bfa_rport_delete(rport->bfa_rport);
1974 kfree(rport_drv);
1975 return NULL;
1976 }
1977 }
1978
1979 if (bfa_fcs_port_is_target(port)) {
1980 rport->tin = bfa_fcs_tin_create(rport);
1981 if (!rport->tin) {
1982 bfa_trc(fcs, rpid);
1983 bfa_rport_delete(rport->bfa_rport);
1984 kfree(rport_drv);
1985 return NULL;
1986 }
1987 }
1988
1989 bfa_fcs_port_add_rport(port, rport);
1990
1991 bfa_sm_set_state(rport, bfa_fcs_rport_sm_uninit);
1992
1993 /*
1994 * Initialize the Rport Features(RPF) Sub Module
1995 */
1996 if (!BFA_FCS_PID_IS_WKA(rport->pid))
1997 bfa_fcs_rpf_init(rport);
1998
1999 return rport;
2000 }
2001
2002
2003 static void
2004 bfa_fcs_rport_free(struct bfa_fcs_rport_s *rport)
2005 {
2006 struct bfa_fcs_port_s *port = rport->port;
2007
2008 /**
2009 * - delete FC-4s
2010 * - delete BFA rport
2011 * - remove from queue of rports
2012 */
2013 if (bfa_fcs_port_is_initiator(port))
2014 bfa_fcs_itnim_delete(rport->itnim);
2015
2016 if (bfa_fcs_port_is_target(port))
2017 bfa_fcs_tin_delete(rport->tin);
2018
2019 bfa_rport_delete(rport->bfa_rport);
2020 bfa_fcs_port_del_rport(port, rport);
2021 kfree(rport->rp_drv);
2022 }
2023
2024 static void
2025 bfa_fcs_rport_aen_post(struct bfa_fcs_rport_s *rport,
2026 enum bfa_rport_aen_event event,
2027 struct bfa_rport_aen_data_s *data)
2028 {
2029 union bfa_aen_data_u aen_data;
2030 struct bfa_log_mod_s *logmod = rport->fcs->logm;
2031 wwn_t lpwwn = bfa_fcs_port_get_pwwn(rport->port);
2032 wwn_t rpwwn = rport->pwwn;
2033 char lpwwn_ptr[BFA_STRING_32];
2034 char rpwwn_ptr[BFA_STRING_32];
2035 char *prio_str[] = { "unknown", "high", "medium", "low" };
2036
2037 wwn2str(lpwwn_ptr, lpwwn);
2038 wwn2str(rpwwn_ptr, rpwwn);
2039
2040 switch (event) {
2041 case BFA_RPORT_AEN_ONLINE:
2042 case BFA_RPORT_AEN_OFFLINE:
2043 case BFA_RPORT_AEN_DISCONNECT:
2044 bfa_log(logmod, BFA_LOG_CREATE_ID(BFA_AEN_CAT_RPORT, event),
2045 rpwwn_ptr, lpwwn_ptr);
2046 break;
2047 case BFA_RPORT_AEN_QOS_PRIO:
2048 aen_data.rport.priv.qos = data->priv.qos;
2049 bfa_log(logmod, BFA_AEN_RPORT_QOS_PRIO,
2050 prio_str[aen_data.rport.priv.qos.qos_priority],
2051 rpwwn_ptr, lpwwn_ptr);
2052 break;
2053 case BFA_RPORT_AEN_QOS_FLOWID:
2054 aen_data.rport.priv.qos = data->priv.qos;
2055 bfa_log(logmod, BFA_AEN_RPORT_QOS_FLOWID,
2056 aen_data.rport.priv.qos.qos_flow_id, rpwwn_ptr,
2057 lpwwn_ptr);
2058 break;
2059 default:
2060 break;
2061 }
2062
2063 aen_data.rport.vf_id = rport->port->fabric->vf_id;
2064 aen_data.rport.ppwwn =
2065 bfa_fcs_port_get_pwwn(bfa_fcs_get_base_port(rport->fcs));
2066 aen_data.rport.lpwwn = lpwwn;
2067 aen_data.rport.rpwwn = rpwwn;
2068 }
2069
2070 static void
2071 bfa_fcs_rport_online_action(struct bfa_fcs_rport_s *rport)
2072 {
2073 struct bfa_fcs_port_s *port = rport->port;
2074
2075 rport->stats.onlines++;
2076
2077 if (bfa_fcs_port_is_initiator(port)) {
2078 bfa_fcs_itnim_rport_online(rport->itnim);
2079 if (!BFA_FCS_PID_IS_WKA(rport->pid))
2080 bfa_fcs_rpf_rport_online(rport);
2081 };
2082
2083 if (bfa_fcs_port_is_target(port))
2084 bfa_fcs_tin_rport_online(rport->tin);
2085
2086 /*
2087 * Don't post events for well known addresses
2088 */
2089 if (!BFA_FCS_PID_IS_WKA(rport->pid))
2090 bfa_fcs_rport_aen_post(rport, BFA_RPORT_AEN_ONLINE, NULL);
2091 }
2092
2093 static void
2094 bfa_fcs_rport_offline_action(struct bfa_fcs_rport_s *rport)
2095 {
2096 struct bfa_fcs_port_s *port = rport->port;
2097
2098 rport->stats.offlines++;
2099
2100 /*
2101 * Don't post events for well known addresses
2102 */
2103 if (!BFA_FCS_PID_IS_WKA(rport->pid)) {
2104 if (bfa_fcs_port_is_online(rport->port) == BFA_TRUE) {
2105 bfa_fcs_rport_aen_post(rport, BFA_RPORT_AEN_DISCONNECT,
2106 NULL);
2107 } else {
2108 bfa_fcs_rport_aen_post(rport, BFA_RPORT_AEN_OFFLINE,
2109 NULL);
2110 }
2111 }
2112
2113 if (bfa_fcs_port_is_initiator(port)) {
2114 bfa_fcs_itnim_rport_offline(rport->itnim);
2115 if (!BFA_FCS_PID_IS_WKA(rport->pid))
2116 bfa_fcs_rpf_rport_offline(rport);
2117 }
2118
2119 if (bfa_fcs_port_is_target(port))
2120 bfa_fcs_tin_rport_offline(rport->tin);
2121 }
2122
2123 /**
2124 * Update rport parameters from PLOGI or PLOGI accept.
2125 */
2126 static void
2127 bfa_fcs_rport_update(struct bfa_fcs_rport_s *rport, struct fc_logi_s *plogi)
2128 {
2129 struct bfa_fcs_port_s *port = rport->port;
2130
2131 /**
2132 * - port name
2133 * - node name
2134 */
2135 rport->pwwn = plogi->port_name;
2136 rport->nwwn = plogi->node_name;
2137
2138 /**
2139 * - class of service
2140 */
2141 rport->fc_cos = 0;
2142 if (plogi->class3.class_valid)
2143 rport->fc_cos = FC_CLASS_3;
2144
2145 if (plogi->class2.class_valid)
2146 rport->fc_cos |= FC_CLASS_2;
2147
2148 /**
2149 * - CISC
2150 * - MAX receive frame size
2151 */
2152 rport->cisc = plogi->csp.cisc;
2153 rport->maxfrsize = bfa_os_ntohs(plogi->class3.rxsz);
2154
2155 bfa_trc(port->fcs, bfa_os_ntohs(plogi->csp.bbcred));
2156 bfa_trc(port->fcs, port->fabric->bb_credit);
2157 /**
2158 * Direct Attach P2P mode :
2159 * This is to handle a bug (233476) in IBM targets in Direct Attach
2160 * Mode. Basically, in FLOGI Accept the target would have erroneously
2161 * set the BB Credit to the value used in the FLOGI sent by the HBA.
2162 * It uses the correct value (its own BB credit) in PLOGI.
2163 */
2164 if ((!bfa_fcs_fabric_is_switched(port->fabric))
2165 && (bfa_os_ntohs(plogi->csp.bbcred) < port->fabric->bb_credit)) {
2166
2167 bfa_trc(port->fcs, bfa_os_ntohs(plogi->csp.bbcred));
2168 bfa_trc(port->fcs, port->fabric->bb_credit);
2169
2170 port->fabric->bb_credit = bfa_os_ntohs(plogi->csp.bbcred);
2171 bfa_fcport_set_tx_bbcredit(port->fcs->bfa,
2172 port->fabric->bb_credit);
2173 }
2174
2175 }
2176
2177 /**
2178 * Called to handle LOGO received from an existing remote port.
2179 */
2180 static void
2181 bfa_fcs_rport_process_logo(struct bfa_fcs_rport_s *rport, struct fchs_s *fchs)
2182 {
2183 rport->reply_oxid = fchs->ox_id;
2184 bfa_trc(rport->fcs, rport->reply_oxid);
2185
2186 rport->stats.logo_rcvd++;
2187 bfa_sm_send_event(rport, RPSM_EVENT_LOGO_RCVD);
2188 }
2189
2190
2191
2192 /**
2193 * fcs_rport_public FCS rport public interfaces
2194 */
2195
2196 /**
2197 * Called by bport/vport to create a remote port instance for a discovered
2198 * remote device.
2199 *
2200 * @param[in] port - base port or vport
2201 * @param[in] rpid - remote port ID
2202 *
2203 * @return None
2204 */
2205 struct bfa_fcs_rport_s *
2206 bfa_fcs_rport_create(struct bfa_fcs_port_s *port, u32 rpid)
2207 {
2208 struct bfa_fcs_rport_s *rport;
2209
2210 bfa_trc(port->fcs, rpid);
2211 rport = bfa_fcs_rport_alloc(port, WWN_NULL, rpid);
2212 if (!rport)
2213 return NULL;
2214
2215 bfa_sm_send_event(rport, RPSM_EVENT_PLOGI_SEND);
2216 return rport;
2217 }
2218
2219 /**
2220 * Called to create a rport for which only the wwn is known.
2221 *
2222 * @param[in] port - base port
2223 * @param[in] rpwwn - remote port wwn
2224 *
2225 * @return None
2226 */
2227 struct bfa_fcs_rport_s *
2228 bfa_fcs_rport_create_by_wwn(struct bfa_fcs_port_s *port, wwn_t rpwwn)
2229 {
2230 struct bfa_fcs_rport_s *rport;
2231
2232 bfa_trc(port->fcs, rpwwn);
2233 rport = bfa_fcs_rport_alloc(port, rpwwn, 0);
2234 if (!rport)
2235 return NULL;
2236
2237 bfa_sm_send_event(rport, RPSM_EVENT_ADDRESS_DISC);
2238 return rport;
2239 }
2240
2241 /**
2242 * Called by bport in private loop topology to indicate that a
2243 * rport has been discovered and plogi has been completed.
2244 *
2245 * @param[in] port - base port or vport
2246 * @param[in] rpid - remote port ID
2247 */
2248 void
2249 bfa_fcs_rport_start(struct bfa_fcs_port_s *port, struct fchs_s *fchs,
2250 struct fc_logi_s *plogi)
2251 {
2252 struct bfa_fcs_rport_s *rport;
2253
2254 rport = bfa_fcs_rport_alloc(port, WWN_NULL, fchs->s_id);
2255 if (!rport)
2256 return;
2257
2258 bfa_fcs_rport_update(rport, plogi);
2259
2260 bfa_sm_send_event(rport, RPSM_EVENT_PLOGI_COMP);
2261 }
2262
2263 /**
2264 * Called by bport/vport to handle PLOGI received from a new remote port.
2265 * If an existing rport does a plogi, it will be handled separately.
2266 */
2267 void
2268 bfa_fcs_rport_plogi_create(struct bfa_fcs_port_s *port, struct fchs_s *fchs,
2269 struct fc_logi_s *plogi)
2270 {
2271 struct bfa_fcs_rport_s *rport;
2272
2273 rport = bfa_fcs_rport_alloc(port, plogi->port_name, fchs->s_id);
2274 if (!rport)
2275 return;
2276
2277 bfa_fcs_rport_update(rport, plogi);
2278
2279 rport->reply_oxid = fchs->ox_id;
2280 bfa_trc(rport->fcs, rport->reply_oxid);
2281
2282 rport->stats.plogi_rcvd++;
2283 bfa_sm_send_event(rport, RPSM_EVENT_PLOGI_RCVD);
2284 }
2285
2286 static int
2287 wwn_compare(wwn_t wwn1, wwn_t wwn2)
2288 {
2289 u8 *b1 = (u8 *) &wwn1;
2290 u8 *b2 = (u8 *) &wwn2;
2291 int i;
2292
2293 for (i = 0; i < sizeof(wwn_t); i++) {
2294 if (b1[i] < b2[i])
2295 return -1;
2296 if (b1[i] > b2[i])
2297 return 1;
2298 }
2299 return 0;
2300 }
2301
2302 /**
2303 * Called by bport/vport to handle PLOGI received from an existing
2304 * remote port.
2305 */
2306 void
2307 bfa_fcs_rport_plogi(struct bfa_fcs_rport_s *rport, struct fchs_s *rx_fchs,
2308 struct fc_logi_s *plogi)
2309 {
2310 /**
2311 * @todo Handle P2P and initiator-initiator.
2312 */
2313
2314 bfa_fcs_rport_update(rport, plogi);
2315
2316 rport->reply_oxid = rx_fchs->ox_id;
2317 bfa_trc(rport->fcs, rport->reply_oxid);
2318
2319 /**
2320 * In Switched fabric topology,
2321 * PLOGI to each other. If our pwwn is smaller, ignore it,
2322 * if it is not a well known address.
2323 * If the link topology is N2N,
2324 * this Plogi should be accepted.
2325 */
2326 if ((wwn_compare(rport->port->port_cfg.pwwn, rport->pwwn) == -1)
2327 && (bfa_fcs_fabric_is_switched(rport->port->fabric))
2328 && (!BFA_FCS_PID_IS_WKA(rport->pid))) {
2329 bfa_trc(rport->fcs, rport->pid);
2330 return;
2331 }
2332
2333 rport->stats.plogi_rcvd++;
2334 bfa_sm_send_event(rport, RPSM_EVENT_PLOGI_RCVD);
2335 }
2336
2337 /**
2338 * Called by bport/vport to delete a remote port instance.
2339 *
2340 * Rport delete is called under the following conditions:
2341 * - vport is deleted
2342 * - vf is deleted
2343 * - explicit request from OS to delete rport (vmware)
2344 */
2345 void
2346 bfa_fcs_rport_delete(struct bfa_fcs_rport_s *rport)
2347 {
2348 bfa_sm_send_event(rport, RPSM_EVENT_DELETE);
2349 }
2350
2351 /**
2352 * Called by bport/vport to when a target goes offline.
2353 *
2354 */
2355 void
2356 bfa_fcs_rport_offline(struct bfa_fcs_rport_s *rport)
2357 {
2358 bfa_sm_send_event(rport, RPSM_EVENT_LOGO_IMP);
2359 }
2360
2361 /**
2362 * Called by bport in n2n when a target (attached port) becomes online.
2363 *
2364 */
2365 void
2366 bfa_fcs_rport_online(struct bfa_fcs_rport_s *rport)
2367 {
2368 bfa_sm_send_event(rport, RPSM_EVENT_PLOGI_SEND);
2369 }
2370
2371 /**
2372 * Called by bport/vport to notify SCN for the remote port
2373 */
2374 void
2375 bfa_fcs_rport_scn(struct bfa_fcs_rport_s *rport)
2376 {
2377
2378 rport->stats.rscns++;
2379 bfa_sm_send_event(rport, RPSM_EVENT_SCN);
2380 }
2381
2382 /**
2383 * Called by fcpim to notify that the ITN cleanup is done.
2384 */
2385 void
2386 bfa_fcs_rport_itnim_ack(struct bfa_fcs_rport_s *rport)
2387 {
2388 bfa_sm_send_event(rport, RPSM_EVENT_FC4_OFFLINE);
2389 }
2390
2391 /**
2392 * Called by fcptm to notify that the ITN cleanup is done.
2393 */
2394 void
2395 bfa_fcs_rport_tin_ack(struct bfa_fcs_rport_s *rport)
2396 {
2397 bfa_sm_send_event(rport, RPSM_EVENT_FC4_OFFLINE);
2398 }
2399
2400 /**
2401 * This routine BFA callback for bfa_rport_online() call.
2402 *
2403 * param[in] cb_arg - rport struct.
2404 *
2405 * return
2406 * void
2407 *
2408 * Special Considerations:
2409 *
2410 * note
2411 */
2412 void
2413 bfa_cb_rport_online(void *cbarg)
2414 {
2415
2416 struct bfa_fcs_rport_s *rport = (struct bfa_fcs_rport_s *)cbarg;
2417
2418 bfa_trc(rport->fcs, rport->pwwn);
2419 bfa_sm_send_event(rport, RPSM_EVENT_HCB_ONLINE);
2420 }
2421
2422 /**
2423 * This routine BFA callback for bfa_rport_offline() call.
2424 *
2425 * param[in] rport -
2426 *
2427 * return
2428 * void
2429 *
2430 * Special Considerations:
2431 *
2432 * note
2433 */
2434 void
2435 bfa_cb_rport_offline(void *cbarg)
2436 {
2437 struct bfa_fcs_rport_s *rport = (struct bfa_fcs_rport_s *)cbarg;
2438
2439 bfa_trc(rport->fcs, rport->pwwn);
2440 bfa_sm_send_event(rport, RPSM_EVENT_HCB_OFFLINE);
2441 }
2442
2443 /**
2444 * This routine is a static BFA callback when there is a QoS flow_id
2445 * change notification
2446 *
2447 * @param[in] rport -
2448 *
2449 * @return void
2450 *
2451 * Special Considerations:
2452 *
2453 * @note
2454 */
2455 void
2456 bfa_cb_rport_qos_scn_flowid(void *cbarg,
2457 struct bfa_rport_qos_attr_s old_qos_attr,
2458 struct bfa_rport_qos_attr_s new_qos_attr)
2459 {
2460 struct bfa_fcs_rport_s *rport = (struct bfa_fcs_rport_s *)cbarg;
2461 struct bfa_rport_aen_data_s aen_data;
2462
2463 bfa_trc(rport->fcs, rport->pwwn);
2464 aen_data.priv.qos = new_qos_attr;
2465 bfa_fcs_rport_aen_post(rport, BFA_RPORT_AEN_QOS_FLOWID, &aen_data);
2466 }
2467
2468 /**
2469 * This routine is a static BFA callback when there is a QoS priority
2470 * change notification
2471 *
2472 * @param[in] rport -
2473 *
2474 * @return void
2475 *
2476 * Special Considerations:
2477 *
2478 * @note
2479 */
2480 void
2481 bfa_cb_rport_qos_scn_prio(void *cbarg, struct bfa_rport_qos_attr_s old_qos_attr,
2482 struct bfa_rport_qos_attr_s new_qos_attr)
2483 {
2484 struct bfa_fcs_rport_s *rport = (struct bfa_fcs_rport_s *)cbarg;
2485 struct bfa_rport_aen_data_s aen_data;
2486
2487 bfa_trc(rport->fcs, rport->pwwn);
2488 aen_data.priv.qos = new_qos_attr;
2489 bfa_fcs_rport_aen_post(rport, BFA_RPORT_AEN_QOS_PRIO, &aen_data);
2490 }
2491
2492 /**
2493 * Called to process any unsolicted frames from this remote port
2494 */
2495 void
2496 bfa_fcs_rport_logo_imp(struct bfa_fcs_rport_s *rport)
2497 {
2498 bfa_sm_send_event(rport, RPSM_EVENT_LOGO_IMP);
2499 }
2500
2501 /**
2502 * Called to process any unsolicted frames from this remote port
2503 */
2504 void
2505 bfa_fcs_rport_uf_recv(struct bfa_fcs_rport_s *rport, struct fchs_s *fchs,
2506 u16 len)
2507 {
2508 struct bfa_fcs_port_s *port = rport->port;
2509 struct fc_els_cmd_s *els_cmd;
2510
2511 bfa_trc(rport->fcs, fchs->s_id);
2512 bfa_trc(rport->fcs, fchs->d_id);
2513 bfa_trc(rport->fcs, fchs->type);
2514
2515 if (fchs->type != FC_TYPE_ELS)
2516 return;
2517
2518 els_cmd = (struct fc_els_cmd_s *) (fchs + 1);
2519
2520 bfa_trc(rport->fcs, els_cmd->els_code);
2521
2522 switch (els_cmd->els_code) {
2523 case FC_ELS_LOGO:
2524 bfa_fcs_rport_process_logo(rport, fchs);
2525 break;
2526
2527 case FC_ELS_ADISC:
2528 bfa_fcs_rport_process_adisc(rport, fchs, len);
2529 break;
2530
2531 case FC_ELS_PRLO:
2532 if (bfa_fcs_port_is_initiator(port))
2533 bfa_fcs_fcpim_uf_recv(rport->itnim, fchs, len);
2534
2535 if (bfa_fcs_port_is_target(port))
2536 bfa_fcs_fcptm_uf_recv(rport->tin, fchs, len);
2537 break;
2538
2539 case FC_ELS_PRLI:
2540 bfa_fcs_rport_process_prli(rport, fchs, len);
2541 break;
2542
2543 case FC_ELS_RPSC:
2544 bfa_fcs_rport_process_rpsc(rport, fchs, len);
2545 break;
2546
2547 default:
2548 bfa_fcs_rport_send_ls_rjt(rport, fchs,
2549 FC_LS_RJT_RSN_CMD_NOT_SUPP,
2550 FC_LS_RJT_EXP_NO_ADDL_INFO);
2551 break;
2552 }
2553 }
2554
2555 /*
2556 * Send a LS reject
2557 */
2558 static void
2559 bfa_fcs_rport_send_ls_rjt(struct bfa_fcs_rport_s *rport, struct fchs_s *rx_fchs,
2560 u8 reason_code, u8 reason_code_expl)
2561 {
2562 struct bfa_fcs_port_s *port = rport->port;
2563 struct fchs_s fchs;
2564 struct bfa_fcxp_s *fcxp;
2565 int len;
2566
2567 bfa_trc(rport->fcs, rx_fchs->s_id);
2568
2569 fcxp = bfa_fcs_fcxp_alloc(rport->fcs);
2570 if (!fcxp)
2571 return;
2572
2573 len = fc_ls_rjt_build(&fchs, bfa_fcxp_get_reqbuf(fcxp), rx_fchs->s_id,
2574 bfa_fcs_port_get_fcid(port), rx_fchs->ox_id,
2575 reason_code, reason_code_expl);
2576
2577 bfa_fcxp_send(fcxp, NULL, port->fabric->vf_id, port->lp_tag, BFA_FALSE,
2578 FC_CLASS_3, len, &fchs, NULL, NULL, FC_MAX_PDUSZ, 0);
2579 }
2580
2581 /**
2582 * Return state of rport.
2583 */
2584 int
2585 bfa_fcs_rport_get_state(struct bfa_fcs_rport_s *rport)
2586 {
2587 return bfa_sm_to_state(rport_sm_table, rport->sm);
2588 }
2589
2590 /**
2591 * Called by the Driver to set rport delete/ageout timeout
2592 *
2593 * param[in] rport timeout value in seconds.
2594 *
2595 * return None
2596 */
2597 void
2598 bfa_fcs_rport_set_del_timeout(u8 rport_tmo)
2599 {
2600 /*
2601 * convert to Millisecs
2602 */
2603 if (rport_tmo > 0)
2604 bfa_fcs_rport_del_timeout = rport_tmo * 1000;
2605 }
kernel source for telekom puls (alcatel/mediatek)