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Merge git://git.infradead.org/users/willy/linux-nvme
[linux-2.6/cjktty.git] / drivers / scsi / bfa / bfa_fcs.c
blobd428808fb37ef7cb0ec1f3cfb41d4bedf974e014
1 /*
2 * Copyright (c) 2005-2010 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 * bfa_fcs.c BFA FCS main
20 */
21
22 #include "bfad_drv.h"
23 #include "bfad_im.h"
24 #include "bfa_fcs.h"
25 #include "bfa_fcbuild.h"
26
27 BFA_TRC_FILE(FCS, FCS);
28
29 /*
30 * FCS sub-modules
31 */
32 struct bfa_fcs_mod_s {
33 void (*attach) (struct bfa_fcs_s *fcs);
34 void (*modinit) (struct bfa_fcs_s *fcs);
35 void (*modexit) (struct bfa_fcs_s *fcs);
36 };
37
38 #define BFA_FCS_MODULE(_mod) { _mod ## _modinit, _mod ## _modexit }
39
40 static struct bfa_fcs_mod_s fcs_modules[] = {
41 { bfa_fcs_port_attach, NULL, NULL },
42 { bfa_fcs_uf_attach, NULL, NULL },
43 { bfa_fcs_fabric_attach, bfa_fcs_fabric_modinit,
44 bfa_fcs_fabric_modexit },
45 };
46
47 /*
48 * fcs_api BFA FCS API
49 */
50
51 static void
52 bfa_fcs_exit_comp(void *fcs_cbarg)
53 {
54 struct bfa_fcs_s *fcs = fcs_cbarg;
55 struct bfad_s *bfad = fcs->bfad;
56
57 complete(&bfad->comp);
58 }
59
60
61
62 /*
63 * fcs_api BFA FCS API
64 */
65
66 /*
67 * fcs attach -- called once to initialize data structures at driver attach time
68 */
69 void
70 bfa_fcs_attach(struct bfa_fcs_s *fcs, struct bfa_s *bfa, struct bfad_s *bfad,
71 bfa_boolean_t min_cfg)
72 {
73 int i;
74 struct bfa_fcs_mod_s *mod;
75
76 fcs->bfa = bfa;
77 fcs->bfad = bfad;
78 fcs->min_cfg = min_cfg;
79 fcs->num_rport_logins = 0;
80
81 bfa->fcs = BFA_TRUE;
82 fcbuild_init();
83
84 for (i = 0; i < sizeof(fcs_modules) / sizeof(fcs_modules[0]); i++) {
85 mod = &fcs_modules[i];
86 if (mod->attach)
87 mod->attach(fcs);
88 }
89 }
90
91 /*
92 * fcs initialization, called once after bfa initialization is complete
93 */
94 void
95 bfa_fcs_init(struct bfa_fcs_s *fcs)
96 {
97 int i;
98 struct bfa_fcs_mod_s *mod;
99
100 for (i = 0; i < sizeof(fcs_modules) / sizeof(fcs_modules[0]); i++) {
101 mod = &fcs_modules[i];
102 if (mod->modinit)
103 mod->modinit(fcs);
104 }
105 }
106
107 /*
108 * FCS update cfg - reset the pwwn/nwwn of fabric base logical port
109 * with values learned during bfa_init firmware GETATTR REQ.
110 */
111 void
112 bfa_fcs_update_cfg(struct bfa_fcs_s *fcs)
113 {
114 struct bfa_fcs_fabric_s *fabric = &fcs->fabric;
115 struct bfa_lport_cfg_s *port_cfg = &fabric->bport.port_cfg;
116 struct bfa_ioc_s *ioc = &fabric->fcs->bfa->ioc;
117
118 port_cfg->nwwn = ioc->attr->nwwn;
119 port_cfg->pwwn = ioc->attr->pwwn;
120 }
121
122 /*
123 * Stop FCS operations.
124 */
125 void
126 bfa_fcs_stop(struct bfa_fcs_s *fcs)
127 {
128 bfa_wc_init(&fcs->wc, bfa_fcs_exit_comp, fcs);
129 bfa_wc_up(&fcs->wc);
130 bfa_fcs_fabric_modstop(fcs);
131 bfa_wc_wait(&fcs->wc);
132 }
133
134 /*
135 * fcs pbc vport initialization
136 */
137 void
138 bfa_fcs_pbc_vport_init(struct bfa_fcs_s *fcs)
139 {
140 int i, npbc_vports;
141 struct bfi_pbc_vport_s pbc_vports[BFI_PBC_MAX_VPORTS];
142
143 /* Initialize pbc vports */
144 if (!fcs->min_cfg) {
145 npbc_vports =
146 bfa_iocfc_get_pbc_vports(fcs->bfa, pbc_vports);
147 for (i = 0; i < npbc_vports; i++)
148 bfa_fcb_pbc_vport_create(fcs->bfa->bfad, pbc_vports[i]);
149 }
150 }
151
152 /*
153 * brief
154 * FCS driver details initialization.
155 *
156 * param[in] fcs FCS instance
157 * param[in] driver_info Driver Details
158 *
159 * return None
160 */
161 void
162 bfa_fcs_driver_info_init(struct bfa_fcs_s *fcs,
163 struct bfa_fcs_driver_info_s *driver_info)
164 {
165
166 fcs->driver_info = *driver_info;
167
168 bfa_fcs_fabric_psymb_init(&fcs->fabric);
169 bfa_fcs_fabric_nsymb_init(&fcs->fabric);
170 }
171
172 /*
173 * brief
174 * FCS instance cleanup and exit.
175 *
176 * param[in] fcs FCS instance
177 * return None
178 */
179 void
180 bfa_fcs_exit(struct bfa_fcs_s *fcs)
181 {
182 struct bfa_fcs_mod_s *mod;
183 int nmods, i;
184
185 bfa_wc_init(&fcs->wc, bfa_fcs_exit_comp, fcs);
186
187 nmods = sizeof(fcs_modules) / sizeof(fcs_modules[0]);
188
189 for (i = 0; i < nmods; i++) {
190
191 mod = &fcs_modules[i];
192 if (mod->modexit) {
193 bfa_wc_up(&fcs->wc);
194 mod->modexit(fcs);
195 }
196 }
197
198 bfa_wc_wait(&fcs->wc);
199 }
200
201
202 /*
203 * Fabric module implementation.
204 */
205
206 #define BFA_FCS_FABRIC_RETRY_DELAY (2000) /* Milliseconds */
207 #define BFA_FCS_FABRIC_CLEANUP_DELAY (10000) /* Milliseconds */
208
209 #define bfa_fcs_fabric_set_opertype(__fabric) do { \
210 if (bfa_fcport_get_topology((__fabric)->fcs->bfa) \
211 == BFA_PORT_TOPOLOGY_P2P) { \
212 if (fabric->fab_type == BFA_FCS_FABRIC_SWITCHED) \
213 (__fabric)->oper_type = BFA_PORT_TYPE_NPORT; \
214 else \
215 (__fabric)->oper_type = BFA_PORT_TYPE_P2P; \
216 } else \
217 (__fabric)->oper_type = BFA_PORT_TYPE_NLPORT; \
218 } while (0)
219
220 /*
221 * forward declarations
222 */
223 static void bfa_fcs_fabric_init(struct bfa_fcs_fabric_s *fabric);
224 static void bfa_fcs_fabric_login(struct bfa_fcs_fabric_s *fabric);
225 static void bfa_fcs_fabric_notify_online(struct bfa_fcs_fabric_s *fabric);
226 static void bfa_fcs_fabric_notify_offline(struct bfa_fcs_fabric_s *fabric);
227 static void bfa_fcs_fabric_delay(void *cbarg);
228 static void bfa_fcs_fabric_delete(struct bfa_fcs_fabric_s *fabric);
229 static void bfa_fcs_fabric_delete_comp(void *cbarg);
230 static void bfa_fcs_fabric_stop(struct bfa_fcs_fabric_s *fabric);
231 static void bfa_fcs_fabric_stop_comp(void *cbarg);
232 static void bfa_fcs_fabric_process_uf(struct bfa_fcs_fabric_s *fabric,
233 struct fchs_s *fchs, u16 len);
234 static void bfa_fcs_fabric_process_flogi(struct bfa_fcs_fabric_s *fabric,
235 struct fchs_s *fchs, u16 len);
236 static void bfa_fcs_fabric_send_flogi_acc(struct bfa_fcs_fabric_s *fabric);
237 static void bfa_fcs_fabric_flogiacc_comp(void *fcsarg,
238 struct bfa_fcxp_s *fcxp, void *cbarg,
239 bfa_status_t status,
240 u32 rsp_len,
241 u32 resid_len,
242 struct fchs_s *rspfchs);
243 static u8 bfa_fcs_fabric_oper_bbscn(struct bfa_fcs_fabric_s *fabric);
244 static bfa_boolean_t bfa_fcs_fabric_is_bbscn_enabled(
245 struct bfa_fcs_fabric_s *fabric);
246
247 static void bfa_fcs_fabric_sm_uninit(struct bfa_fcs_fabric_s *fabric,
248 enum bfa_fcs_fabric_event event);
249 static void bfa_fcs_fabric_sm_created(struct bfa_fcs_fabric_s *fabric,
250 enum bfa_fcs_fabric_event event);
251 static void bfa_fcs_fabric_sm_linkdown(struct bfa_fcs_fabric_s *fabric,
252 enum bfa_fcs_fabric_event event);
253 static void bfa_fcs_fabric_sm_flogi(struct bfa_fcs_fabric_s *fabric,
254 enum bfa_fcs_fabric_event event);
255 static void bfa_fcs_fabric_sm_flogi_retry(struct bfa_fcs_fabric_s *fabric,
256 enum bfa_fcs_fabric_event event);
257 static void bfa_fcs_fabric_sm_auth(struct bfa_fcs_fabric_s *fabric,
258 enum bfa_fcs_fabric_event event);
259 static void bfa_fcs_fabric_sm_nofabric(struct bfa_fcs_fabric_s *fabric,
260 enum bfa_fcs_fabric_event event);
261 static void bfa_fcs_fabric_sm_evfp(struct bfa_fcs_fabric_s *fabric,
262 enum bfa_fcs_fabric_event event);
263 static void bfa_fcs_fabric_sm_evfp_done(struct bfa_fcs_fabric_s *fabric,
264 enum bfa_fcs_fabric_event event);
265 static void bfa_fcs_fabric_sm_isolated(struct bfa_fcs_fabric_s *fabric,
266 enum bfa_fcs_fabric_event event);
267 static void bfa_fcs_fabric_sm_deleting(struct bfa_fcs_fabric_s *fabric,
268 enum bfa_fcs_fabric_event event);
269 static void bfa_fcs_fabric_sm_stopping(struct bfa_fcs_fabric_s *fabric,
270 enum bfa_fcs_fabric_event event);
271 static void bfa_fcs_fabric_sm_cleanup(struct bfa_fcs_fabric_s *fabric,
272 enum bfa_fcs_fabric_event event);
273 /*
274 * Beginning state before fabric creation.
275 */
276 static void
277 bfa_fcs_fabric_sm_uninit(struct bfa_fcs_fabric_s *fabric,
278 enum bfa_fcs_fabric_event event)
279 {
280 bfa_trc(fabric->fcs, fabric->bport.port_cfg.pwwn);
281 bfa_trc(fabric->fcs, event);
282
283 switch (event) {
284 case BFA_FCS_FABRIC_SM_CREATE:
285 bfa_sm_set_state(fabric, bfa_fcs_fabric_sm_created);
286 bfa_fcs_fabric_init(fabric);
287 bfa_fcs_lport_init(&fabric->bport, &fabric->bport.port_cfg);
288 break;
289
290 case BFA_FCS_FABRIC_SM_LINK_UP:
291 case BFA_FCS_FABRIC_SM_LINK_DOWN:
292 break;
293
294 default:
295 bfa_sm_fault(fabric->fcs, event);
296 }
297 }
298
299 /*
300 * Beginning state before fabric creation.
301 */
302 static void
303 bfa_fcs_fabric_sm_created(struct bfa_fcs_fabric_s *fabric,
304 enum bfa_fcs_fabric_event event)
305 {
306 struct bfa_s *bfa = fabric->fcs->bfa;
307
308 bfa_trc(fabric->fcs, fabric->bport.port_cfg.pwwn);
309 bfa_trc(fabric->fcs, event);
310
311 switch (event) {
312 case BFA_FCS_FABRIC_SM_START:
313 if (!bfa_fcport_is_linkup(fabric->fcs->bfa)) {
314 bfa_sm_set_state(fabric, bfa_fcs_fabric_sm_linkdown);
315 break;
316 }
317 if (bfa_fcport_get_topology(bfa) ==
318 BFA_PORT_TOPOLOGY_LOOP) {
319 fabric->fab_type = BFA_FCS_FABRIC_LOOP;
320 fabric->bport.pid = bfa_fcport_get_myalpa(bfa);
321 fabric->bport.pid = bfa_hton3b(fabric->bport.pid);
322 bfa_sm_set_state(fabric,
323 bfa_fcs_fabric_sm_online);
324 bfa_fcs_fabric_set_opertype(fabric);
325 bfa_fcs_lport_online(&fabric->bport);
326 } else {
327 bfa_sm_set_state(fabric, bfa_fcs_fabric_sm_flogi);
328 bfa_fcs_fabric_login(fabric);
329 }
330 break;
331
332 case BFA_FCS_FABRIC_SM_LINK_UP:
333 case BFA_FCS_FABRIC_SM_LINK_DOWN:
334 break;
335
336 case BFA_FCS_FABRIC_SM_DELETE:
337 bfa_sm_set_state(fabric, bfa_fcs_fabric_sm_deleting);
338 bfa_fcs_fabric_delete(fabric);
339 break;
340
341 default:
342 bfa_sm_fault(fabric->fcs, event);
343 }
344 }
345
346 /*
347 * Link is down, awaiting LINK UP event from port. This is also the
348 * first state at fabric creation.
349 */
350 static void
351 bfa_fcs_fabric_sm_linkdown(struct bfa_fcs_fabric_s *fabric,
352 enum bfa_fcs_fabric_event event)
353 {
354 struct bfa_s *bfa = fabric->fcs->bfa;
355
356 bfa_trc(fabric->fcs, fabric->bport.port_cfg.pwwn);
357 bfa_trc(fabric->fcs, event);
358
359 switch (event) {
360 case BFA_FCS_FABRIC_SM_LINK_UP:
361 if (bfa_fcport_get_topology(bfa) != BFA_PORT_TOPOLOGY_LOOP) {
362 bfa_sm_set_state(fabric, bfa_fcs_fabric_sm_flogi);
363 bfa_fcs_fabric_login(fabric);
364 break;
365 }
366 fabric->fab_type = BFA_FCS_FABRIC_LOOP;
367 fabric->bport.pid = bfa_fcport_get_myalpa(bfa);
368 fabric->bport.pid = bfa_hton3b(fabric->bport.pid);
369 bfa_sm_set_state(fabric, bfa_fcs_fabric_sm_online);
370 bfa_fcs_fabric_set_opertype(fabric);
371 bfa_fcs_lport_online(&fabric->bport);
372 break;
373
374 case BFA_FCS_FABRIC_SM_RETRY_OP:
375 case BFA_FCS_FABRIC_SM_LOOPBACK:
376 break;
377
378 case BFA_FCS_FABRIC_SM_DELETE:
379 bfa_sm_set_state(fabric, bfa_fcs_fabric_sm_deleting);
380 bfa_fcs_fabric_delete(fabric);
381 break;
382
383 case BFA_FCS_FABRIC_SM_STOP:
384 bfa_sm_set_state(fabric, bfa_fcs_fabric_sm_cleanup);
385 bfa_fcs_fabric_stop(fabric);
386 break;
387
388 default:
389 bfa_sm_fault(fabric->fcs, event);
390 }
391 }
392
393 /*
394 * FLOGI is in progress, awaiting FLOGI reply.
395 */
396 static void
397 bfa_fcs_fabric_sm_flogi(struct bfa_fcs_fabric_s *fabric,
398 enum bfa_fcs_fabric_event event)
399 {
400 bfa_trc(fabric->fcs, fabric->bport.port_cfg.pwwn);
401 bfa_trc(fabric->fcs, event);
402
403 switch (event) {
404 case BFA_FCS_FABRIC_SM_CONT_OP:
405
406 bfa_fcport_set_tx_bbcredit(fabric->fcs->bfa,
407 fabric->bb_credit,
408 bfa_fcs_fabric_oper_bbscn(fabric));
409 fabric->fab_type = BFA_FCS_FABRIC_SWITCHED;
410
411 if (fabric->auth_reqd && fabric->is_auth) {
412 bfa_sm_set_state(fabric, bfa_fcs_fabric_sm_auth);
413 bfa_trc(fabric->fcs, event);
414 } else {
415 bfa_sm_set_state(fabric, bfa_fcs_fabric_sm_online);
416 bfa_fcs_fabric_notify_online(fabric);
417 }
418 break;
419
420 case BFA_FCS_FABRIC_SM_RETRY_OP:
421 bfa_sm_set_state(fabric, bfa_fcs_fabric_sm_flogi_retry);
422 bfa_timer_start(fabric->fcs->bfa, &fabric->delay_timer,
423 bfa_fcs_fabric_delay, fabric,
424 BFA_FCS_FABRIC_RETRY_DELAY);
425 break;
426
427 case BFA_FCS_FABRIC_SM_LOOPBACK:
428 bfa_sm_set_state(fabric, bfa_fcs_fabric_sm_loopback);
429 bfa_sm_send_event(fabric->lps, BFA_LPS_SM_OFFLINE);
430 bfa_fcs_fabric_set_opertype(fabric);
431 break;
432
433 case BFA_FCS_FABRIC_SM_NO_FABRIC:
434 fabric->fab_type = BFA_FCS_FABRIC_N2N;
435 bfa_fcport_set_tx_bbcredit(fabric->fcs->bfa,
436 fabric->bb_credit,
437 bfa_fcs_fabric_oper_bbscn(fabric));
438 bfa_fcs_fabric_notify_online(fabric);
439 bfa_sm_set_state(fabric, bfa_fcs_fabric_sm_nofabric);
440 break;
441
442 case BFA_FCS_FABRIC_SM_LINK_DOWN:
443 bfa_sm_set_state(fabric, bfa_fcs_fabric_sm_linkdown);
444 bfa_sm_send_event(fabric->lps, BFA_LPS_SM_OFFLINE);
445 break;
446
447 case BFA_FCS_FABRIC_SM_DELETE:
448 bfa_sm_set_state(fabric, bfa_fcs_fabric_sm_deleting);
449 bfa_sm_send_event(fabric->lps, BFA_LPS_SM_OFFLINE);
450 bfa_fcs_fabric_delete(fabric);
451 break;
452
453 default:
454 bfa_sm_fault(fabric->fcs, event);
455 }
456 }
457
458
459 static void
460 bfa_fcs_fabric_sm_flogi_retry(struct bfa_fcs_fabric_s *fabric,
461 enum bfa_fcs_fabric_event event)
462 {
463 bfa_trc(fabric->fcs, fabric->bport.port_cfg.pwwn);
464 bfa_trc(fabric->fcs, event);
465
466 switch (event) {
467 case BFA_FCS_FABRIC_SM_DELAYED:
468 bfa_sm_set_state(fabric, bfa_fcs_fabric_sm_flogi);
469 bfa_fcs_fabric_login(fabric);
470 break;
471
472 case BFA_FCS_FABRIC_SM_LINK_DOWN:
473 bfa_sm_set_state(fabric, bfa_fcs_fabric_sm_linkdown);
474 bfa_timer_stop(&fabric->delay_timer);
475 break;
476
477 case BFA_FCS_FABRIC_SM_DELETE:
478 bfa_sm_set_state(fabric, bfa_fcs_fabric_sm_deleting);
479 bfa_timer_stop(&fabric->delay_timer);
480 bfa_fcs_fabric_delete(fabric);
481 break;
482
483 default:
484 bfa_sm_fault(fabric->fcs, event);
485 }
486 }
487
488 /*
489 * Authentication is in progress, awaiting authentication results.
490 */
491 static void
492 bfa_fcs_fabric_sm_auth(struct bfa_fcs_fabric_s *fabric,
493 enum bfa_fcs_fabric_event event)
494 {
495 bfa_trc(fabric->fcs, fabric->bport.port_cfg.pwwn);
496 bfa_trc(fabric->fcs, event);
497
498 switch (event) {
499 case BFA_FCS_FABRIC_SM_AUTH_FAILED:
500 bfa_sm_set_state(fabric, bfa_fcs_fabric_sm_auth_failed);
501 bfa_sm_send_event(fabric->lps, BFA_LPS_SM_OFFLINE);
502 break;
503
504 case BFA_FCS_FABRIC_SM_AUTH_SUCCESS:
505 bfa_sm_set_state(fabric, bfa_fcs_fabric_sm_online);
506 bfa_fcs_fabric_notify_online(fabric);
507 break;
508
509 case BFA_FCS_FABRIC_SM_PERF_EVFP:
510 bfa_sm_set_state(fabric, bfa_fcs_fabric_sm_evfp);
511 break;
512
513 case BFA_FCS_FABRIC_SM_LINK_DOWN:
514 bfa_sm_set_state(fabric, bfa_fcs_fabric_sm_linkdown);
515 bfa_sm_send_event(fabric->lps, BFA_LPS_SM_OFFLINE);
516 break;
517
518 case BFA_FCS_FABRIC_SM_DELETE:
519 bfa_sm_set_state(fabric, bfa_fcs_fabric_sm_deleting);
520 bfa_fcs_fabric_delete(fabric);
521 break;
522
523 default:
524 bfa_sm_fault(fabric->fcs, event);
525 }
526 }
527
528 /*
529 * Authentication failed
530 */
531 void
532 bfa_fcs_fabric_sm_auth_failed(struct bfa_fcs_fabric_s *fabric,
533 enum bfa_fcs_fabric_event event)
534 {
535 bfa_trc(fabric->fcs, fabric->bport.port_cfg.pwwn);
536 bfa_trc(fabric->fcs, event);
537
538 switch (event) {
539 case BFA_FCS_FABRIC_SM_LINK_DOWN:
540 bfa_sm_set_state(fabric, bfa_fcs_fabric_sm_linkdown);
541 bfa_fcs_fabric_notify_offline(fabric);
542 break;
543
544 case BFA_FCS_FABRIC_SM_DELETE:
545 bfa_sm_set_state(fabric, bfa_fcs_fabric_sm_deleting);
546 bfa_fcs_fabric_delete(fabric);
547 break;
548
549 default:
550 bfa_sm_fault(fabric->fcs, event);
551 }
552 }
553
554 /*
555 * Port is in loopback mode.
556 */
557 void
558 bfa_fcs_fabric_sm_loopback(struct bfa_fcs_fabric_s *fabric,
559 enum bfa_fcs_fabric_event event)
560 {
561 bfa_trc(fabric->fcs, fabric->bport.port_cfg.pwwn);
562 bfa_trc(fabric->fcs, event);
563
564 switch (event) {
565 case BFA_FCS_FABRIC_SM_LINK_DOWN:
566 bfa_sm_set_state(fabric, bfa_fcs_fabric_sm_linkdown);
567 bfa_fcs_fabric_notify_offline(fabric);
568 break;
569
570 case BFA_FCS_FABRIC_SM_DELETE:
571 bfa_sm_set_state(fabric, bfa_fcs_fabric_sm_deleting);
572 bfa_fcs_fabric_delete(fabric);
573 break;
574
575 default:
576 bfa_sm_fault(fabric->fcs, event);
577 }
578 }
579
580 /*
581 * There is no attached fabric - private loop or NPort-to-NPort topology.
582 */
583 static void
584 bfa_fcs_fabric_sm_nofabric(struct bfa_fcs_fabric_s *fabric,
585 enum bfa_fcs_fabric_event event)
586 {
587 bfa_trc(fabric->fcs, fabric->bport.port_cfg.pwwn);
588 bfa_trc(fabric->fcs, event);
589
590 switch (event) {
591 case BFA_FCS_FABRIC_SM_LINK_DOWN:
592 bfa_sm_set_state(fabric, bfa_fcs_fabric_sm_linkdown);
593 bfa_sm_send_event(fabric->lps, BFA_LPS_SM_OFFLINE);
594 bfa_fcs_fabric_notify_offline(fabric);
595 break;
596
597 case BFA_FCS_FABRIC_SM_DELETE:
598 bfa_sm_set_state(fabric, bfa_fcs_fabric_sm_deleting);
599 bfa_fcs_fabric_delete(fabric);
600 break;
601
602 case BFA_FCS_FABRIC_SM_NO_FABRIC:
603 bfa_trc(fabric->fcs, fabric->bb_credit);
604 bfa_fcport_set_tx_bbcredit(fabric->fcs->bfa,
605 fabric->bb_credit,
606 bfa_fcs_fabric_oper_bbscn(fabric));
607 break;
608
609 case BFA_FCS_FABRIC_SM_RETRY_OP:
610 break;
611
612 default:
613 bfa_sm_fault(fabric->fcs, event);
614 }
615 }
616
617 /*
618 * Fabric is online - normal operating state.
619 */
620 void
621 bfa_fcs_fabric_sm_online(struct bfa_fcs_fabric_s *fabric,
622 enum bfa_fcs_fabric_event event)
623 {
624 struct bfa_s *bfa = fabric->fcs->bfa;
625
626 bfa_trc(fabric->fcs, fabric->bport.port_cfg.pwwn);
627 bfa_trc(fabric->fcs, event);
628
629 switch (event) {
630 case BFA_FCS_FABRIC_SM_LINK_DOWN:
631 bfa_sm_set_state(fabric, bfa_fcs_fabric_sm_linkdown);
632 if (bfa_fcport_get_topology(bfa) == BFA_PORT_TOPOLOGY_LOOP) {
633 bfa_fcs_lport_offline(&fabric->bport);
634 } else {
635 bfa_sm_send_event(fabric->lps, BFA_LPS_SM_OFFLINE);
636 bfa_fcs_fabric_notify_offline(fabric);
637 }
638 break;
639
640 case BFA_FCS_FABRIC_SM_DELETE:
641 bfa_sm_set_state(fabric, bfa_fcs_fabric_sm_deleting);
642 bfa_fcs_fabric_delete(fabric);
643 break;
644
645 case BFA_FCS_FABRIC_SM_STOP:
646 bfa_sm_set_state(fabric, bfa_fcs_fabric_sm_stopping);
647 bfa_fcs_fabric_stop(fabric);
648 break;
649
650 case BFA_FCS_FABRIC_SM_AUTH_FAILED:
651 bfa_sm_set_state(fabric, bfa_fcs_fabric_sm_auth_failed);
652 bfa_sm_send_event(fabric->lps, BFA_LPS_SM_OFFLINE);
653 break;
654
655 case BFA_FCS_FABRIC_SM_AUTH_SUCCESS:
656 break;
657
658 default:
659 bfa_sm_fault(fabric->fcs, event);
660 }
661 }
662
663 /*
664 * Exchanging virtual fabric parameters.
665 */
666 static void
667 bfa_fcs_fabric_sm_evfp(struct bfa_fcs_fabric_s *fabric,
668 enum bfa_fcs_fabric_event event)
669 {
670 bfa_trc(fabric->fcs, fabric->bport.port_cfg.pwwn);
671 bfa_trc(fabric->fcs, event);
672
673 switch (event) {
674 case BFA_FCS_FABRIC_SM_CONT_OP:
675 bfa_sm_set_state(fabric, bfa_fcs_fabric_sm_evfp_done);
676 break;
677
678 case BFA_FCS_FABRIC_SM_ISOLATE:
679 bfa_sm_set_state(fabric, bfa_fcs_fabric_sm_isolated);
680 break;
681
682 default:
683 bfa_sm_fault(fabric->fcs, event);
684 }
685 }
686
687 /*
688 * EVFP exchange complete and VFT tagging is enabled.
689 */
690 static void
691 bfa_fcs_fabric_sm_evfp_done(struct bfa_fcs_fabric_s *fabric,
692 enum bfa_fcs_fabric_event event)
693 {
694 bfa_trc(fabric->fcs, fabric->bport.port_cfg.pwwn);
695 bfa_trc(fabric->fcs, event);
696 }
697
698 /*
699 * Port is isolated after EVFP exchange due to VF_ID mismatch (N and F).
700 */
701 static void
702 bfa_fcs_fabric_sm_isolated(struct bfa_fcs_fabric_s *fabric,
703 enum bfa_fcs_fabric_event event)
704 {
705 struct bfad_s *bfad = (struct bfad_s *)fabric->fcs->bfad;
706 char pwwn_ptr[BFA_STRING_32];
707
708 bfa_trc(fabric->fcs, fabric->bport.port_cfg.pwwn);
709 bfa_trc(fabric->fcs, event);
710 wwn2str(pwwn_ptr, fabric->bport.port_cfg.pwwn);
711
712 BFA_LOG(KERN_INFO, bfad, bfa_log_level,
713 "Port is isolated due to VF_ID mismatch. "
714 "PWWN: %s Port VF_ID: %04x switch port VF_ID: %04x.",
715 pwwn_ptr, fabric->fcs->port_vfid,
716 fabric->event_arg.swp_vfid);
717 }
718
719 /*
720 * Fabric is being deleted, awaiting vport delete completions.
721 */
722 static void
723 bfa_fcs_fabric_sm_deleting(struct bfa_fcs_fabric_s *fabric,
724 enum bfa_fcs_fabric_event event)
725 {
726 bfa_trc(fabric->fcs, fabric->bport.port_cfg.pwwn);
727 bfa_trc(fabric->fcs, event);
728
729 switch (event) {
730 case BFA_FCS_FABRIC_SM_DELCOMP:
731 bfa_sm_set_state(fabric, bfa_fcs_fabric_sm_uninit);
732 bfa_wc_down(&fabric->fcs->wc);
733 break;
734
735 case BFA_FCS_FABRIC_SM_LINK_UP:
736 break;
737
738 case BFA_FCS_FABRIC_SM_LINK_DOWN:
739 bfa_fcs_fabric_notify_offline(fabric);
740 break;
741
742 default:
743 bfa_sm_fault(fabric->fcs, event);
744 }
745 }
746
747 /*
748 * Fabric is being stopped, awaiting vport stop completions.
749 */
750 static void
751 bfa_fcs_fabric_sm_stopping(struct bfa_fcs_fabric_s *fabric,
752 enum bfa_fcs_fabric_event event)
753 {
754 struct bfa_s *bfa = fabric->fcs->bfa;
755
756 bfa_trc(fabric->fcs, fabric->bport.port_cfg.pwwn);
757 bfa_trc(fabric->fcs, event);
758
759 switch (event) {
760 case BFA_FCS_FABRIC_SM_STOPCOMP:
761 if (bfa_fcport_get_topology(bfa) == BFA_PORT_TOPOLOGY_LOOP) {
762 bfa_sm_set_state(fabric, bfa_fcs_fabric_sm_created);
763 } else {
764 bfa_sm_set_state(fabric, bfa_fcs_fabric_sm_cleanup);
765 bfa_sm_send_event(fabric->lps, BFA_LPS_SM_LOGOUT);
766 }
767 break;
768
769 case BFA_FCS_FABRIC_SM_LINK_UP:
770 break;
771
772 case BFA_FCS_FABRIC_SM_LINK_DOWN:
773 if (bfa_fcport_get_topology(bfa) == BFA_PORT_TOPOLOGY_LOOP)
774 bfa_sm_set_state(fabric, bfa_fcs_fabric_sm_created);
775 else
776 bfa_sm_set_state(fabric, bfa_fcs_fabric_sm_cleanup);
777 break;
778
779 default:
780 bfa_sm_fault(fabric->fcs, event);
781 }
782 }
783
784 /*
785 * Fabric is being stopped, cleanup without FLOGO
786 */
787 static void
788 bfa_fcs_fabric_sm_cleanup(struct bfa_fcs_fabric_s *fabric,
789 enum bfa_fcs_fabric_event event)
790 {
791 bfa_trc(fabric->fcs, fabric->bport.port_cfg.pwwn);
792 bfa_trc(fabric->fcs, event);
793
794 switch (event) {
795 case BFA_FCS_FABRIC_SM_STOPCOMP:
796 case BFA_FCS_FABRIC_SM_LOGOCOMP:
797 bfa_sm_set_state(fabric, bfa_fcs_fabric_sm_created);
798 bfa_wc_down(&(fabric->fcs)->wc);
799 break;
800
801 case BFA_FCS_FABRIC_SM_LINK_DOWN:
802 /*
803 * Ignore - can get this event if we get notified about IOC down
804 * before the fabric completion callbk is done.
805 */
806 break;
807
808 default:
809 bfa_sm_fault(fabric->fcs, event);
810 }
811 }
812
813 /*
814 * fcs_fabric_private fabric private functions
815 */
816
817 static void
818 bfa_fcs_fabric_init(struct bfa_fcs_fabric_s *fabric)
819 {
820 struct bfa_lport_cfg_s *port_cfg = &fabric->bport.port_cfg;
821
822 port_cfg->roles = BFA_LPORT_ROLE_FCP_IM;
823 port_cfg->nwwn = fabric->fcs->bfa->ioc.attr->nwwn;
824 port_cfg->pwwn = fabric->fcs->bfa->ioc.attr->pwwn;
825 }
826
827 /*
828 * Port Symbolic Name Creation for base port.
829 */
830 void
831 bfa_fcs_fabric_psymb_init(struct bfa_fcs_fabric_s *fabric)
832 {
833 struct bfa_lport_cfg_s *port_cfg = &fabric->bport.port_cfg;
834 char model[BFA_ADAPTER_MODEL_NAME_LEN] = {0};
835 struct bfa_fcs_driver_info_s *driver_info = &fabric->fcs->driver_info;
836
837 bfa_ioc_get_adapter_model(&fabric->fcs->bfa->ioc, model);
838
839 /* Model name/number */
840 strncpy((char *)&port_cfg->sym_name, model,
841 BFA_FCS_PORT_SYMBNAME_MODEL_SZ);
842 strncat((char *)&port_cfg->sym_name, BFA_FCS_PORT_SYMBNAME_SEPARATOR,
843 sizeof(BFA_FCS_PORT_SYMBNAME_SEPARATOR));
844
845 /* Driver Version */
846 strncat((char *)&port_cfg->sym_name, (char *)driver_info->version,
847 BFA_FCS_PORT_SYMBNAME_VERSION_SZ);
848 strncat((char *)&port_cfg->sym_name, BFA_FCS_PORT_SYMBNAME_SEPARATOR,
849 sizeof(BFA_FCS_PORT_SYMBNAME_SEPARATOR));
850
851 /* Host machine name */
852 strncat((char *)&port_cfg->sym_name,
853 (char *)driver_info->host_machine_name,
854 BFA_FCS_PORT_SYMBNAME_MACHINENAME_SZ);
855 strncat((char *)&port_cfg->sym_name, BFA_FCS_PORT_SYMBNAME_SEPARATOR,
856 sizeof(BFA_FCS_PORT_SYMBNAME_SEPARATOR));
857
858 /*
859 * Host OS Info :
860 * If OS Patch Info is not there, do not truncate any bytes from the
861 * OS name string and instead copy the entire OS info string (64 bytes).
862 */
863 if (driver_info->host_os_patch[0] == '\0') {
864 strncat((char *)&port_cfg->sym_name,
865 (char *)driver_info->host_os_name,
866 BFA_FCS_OS_STR_LEN);
867 strncat((char *)&port_cfg->sym_name,
868 BFA_FCS_PORT_SYMBNAME_SEPARATOR,
869 sizeof(BFA_FCS_PORT_SYMBNAME_SEPARATOR));
870 } else {
871 strncat((char *)&port_cfg->sym_name,
872 (char *)driver_info->host_os_name,
873 BFA_FCS_PORT_SYMBNAME_OSINFO_SZ);
874 strncat((char *)&port_cfg->sym_name,
875 BFA_FCS_PORT_SYMBNAME_SEPARATOR,
876 sizeof(BFA_FCS_PORT_SYMBNAME_SEPARATOR));
877
878 /* Append host OS Patch Info */
879 strncat((char *)&port_cfg->sym_name,
880 (char *)driver_info->host_os_patch,
881 BFA_FCS_PORT_SYMBNAME_OSPATCH_SZ);
882 }
883
884 /* null terminate */
885 port_cfg->sym_name.symname[BFA_SYMNAME_MAXLEN - 1] = 0;
886 }
887
888 /*
889 * Node Symbolic Name Creation for base port and all vports
890 */
891 void
892 bfa_fcs_fabric_nsymb_init(struct bfa_fcs_fabric_s *fabric)
893 {
894 struct bfa_lport_cfg_s *port_cfg = &fabric->bport.port_cfg;
895 char model[BFA_ADAPTER_MODEL_NAME_LEN] = {0};
896 struct bfa_fcs_driver_info_s *driver_info = &fabric->fcs->driver_info;
897
898 bfa_ioc_get_adapter_model(&fabric->fcs->bfa->ioc, model);
899
900 /* Model name/number */
901 strncpy((char *)&port_cfg->node_sym_name, model,
902 BFA_FCS_PORT_SYMBNAME_MODEL_SZ);
903 strncat((char *)&port_cfg->node_sym_name,
904 BFA_FCS_PORT_SYMBNAME_SEPARATOR,
905 sizeof(BFA_FCS_PORT_SYMBNAME_SEPARATOR));
906
907 /* Driver Version */
908 strncat((char *)&port_cfg->node_sym_name, (char *)driver_info->version,
909 BFA_FCS_PORT_SYMBNAME_VERSION_SZ);
910 strncat((char *)&port_cfg->node_sym_name,
911 BFA_FCS_PORT_SYMBNAME_SEPARATOR,
912 sizeof(BFA_FCS_PORT_SYMBNAME_SEPARATOR));
913
914 /* Host machine name */
915 strncat((char *)&port_cfg->node_sym_name,
916 (char *)driver_info->host_machine_name,
917 BFA_FCS_PORT_SYMBNAME_MACHINENAME_SZ);
918 strncat((char *)&port_cfg->node_sym_name,
919 BFA_FCS_PORT_SYMBNAME_SEPARATOR,
920 sizeof(BFA_FCS_PORT_SYMBNAME_SEPARATOR));
921
922 /* null terminate */
923 port_cfg->node_sym_name.symname[BFA_SYMNAME_MAXLEN - 1] = 0;
924 }
925
926 /*
927 * bfa lps login completion callback
928 */
929 void
930 bfa_cb_lps_flogi_comp(void *bfad, void *uarg, bfa_status_t status)
931 {
932 struct bfa_fcs_fabric_s *fabric = uarg;
933
934 bfa_trc(fabric->fcs, fabric->bport.port_cfg.pwwn);
935 bfa_trc(fabric->fcs, status);
936
937 switch (status) {
938 case BFA_STATUS_OK:
939 fabric->stats.flogi_accepts++;
940 break;
941
942 case BFA_STATUS_INVALID_MAC:
943 /* Only for CNA */
944 fabric->stats.flogi_acc_err++;
945 bfa_sm_send_event(fabric, BFA_FCS_FABRIC_SM_RETRY_OP);
946
947 return;
948
949 case BFA_STATUS_EPROTOCOL:
950 switch (fabric->lps->ext_status) {
951 case BFA_EPROTO_BAD_ACCEPT:
952 fabric->stats.flogi_acc_err++;
953 break;
954
955 case BFA_EPROTO_UNKNOWN_RSP:
956 fabric->stats.flogi_unknown_rsp++;
957 break;
958
959 default:
960 break;
961 }
962 bfa_sm_send_event(fabric, BFA_FCS_FABRIC_SM_RETRY_OP);
963
964 return;
965
966 case BFA_STATUS_FABRIC_RJT:
967 fabric->stats.flogi_rejects++;
968 if (fabric->lps->lsrjt_rsn == FC_LS_RJT_RSN_LOGICAL_ERROR &&
969 fabric->lps->lsrjt_expl == FC_LS_RJT_EXP_NO_ADDL_INFO)
970 fabric->fcs->bbscn_flogi_rjt = BFA_TRUE;
971
972 bfa_sm_send_event(fabric, BFA_FCS_FABRIC_SM_RETRY_OP);
973 return;
974
975 default:
976 fabric->stats.flogi_rsp_err++;
977 bfa_sm_send_event(fabric, BFA_FCS_FABRIC_SM_RETRY_OP);
978 return;
979 }
980
981 fabric->bb_credit = fabric->lps->pr_bbcred;
982 bfa_trc(fabric->fcs, fabric->bb_credit);
983
984 if (!(fabric->lps->brcd_switch))
985 fabric->fabric_name = fabric->lps->pr_nwwn;
986
987 /*
988 * Check port type. It should be 1 = F-port.
989 */
990 if (fabric->lps->fport) {
991 fabric->bport.pid = fabric->lps->lp_pid;
992 fabric->is_npiv = fabric->lps->npiv_en;
993 fabric->is_auth = fabric->lps->auth_req;
994 bfa_sm_send_event(fabric, BFA_FCS_FABRIC_SM_CONT_OP);
995 } else {
996 /*
997 * Nport-2-Nport direct attached
998 */
999 fabric->bport.port_topo.pn2n.rem_port_wwn =
1000 fabric->lps->pr_pwwn;
1001 fabric->fab_type = BFA_FCS_FABRIC_N2N;
1002 bfa_sm_send_event(fabric, BFA_FCS_FABRIC_SM_NO_FABRIC);
1003 }
1004
1005 bfa_trc(fabric->fcs, fabric->bport.pid);
1006 bfa_trc(fabric->fcs, fabric->is_npiv);
1007 bfa_trc(fabric->fcs, fabric->is_auth);
1008 }
1009 /*
1010 * Allocate and send FLOGI.
1011 */
1012 static void
1013 bfa_fcs_fabric_login(struct bfa_fcs_fabric_s *fabric)
1014 {
1015 struct bfa_s *bfa = fabric->fcs->bfa;
1016 struct bfa_lport_cfg_s *pcfg = &fabric->bport.port_cfg;
1017 u8 alpa = 0, bb_scn = 0;
1018
1019 if (bfa_fcs_fabric_is_bbscn_enabled(fabric) &&
1020 (!fabric->fcs->bbscn_flogi_rjt))
1021 bb_scn = BFA_FCS_PORT_DEF_BB_SCN;
1022
1023 bfa_lps_flogi(fabric->lps, fabric, alpa, bfa_fcport_get_maxfrsize(bfa),
1024 pcfg->pwwn, pcfg->nwwn, fabric->auth_reqd, bb_scn);
1025
1026 fabric->stats.flogi_sent++;
1027 }
1028
1029 static void
1030 bfa_fcs_fabric_notify_online(struct bfa_fcs_fabric_s *fabric)
1031 {
1032 struct bfa_fcs_vport_s *vport;
1033 struct list_head *qe, *qen;
1034
1035 bfa_trc(fabric->fcs, fabric->fabric_name);
1036
1037 bfa_fcs_fabric_set_opertype(fabric);
1038 fabric->stats.fabric_onlines++;
1039
1040 /*
1041 * notify online event to base and then virtual ports
1042 */
1043 bfa_fcs_lport_online(&fabric->bport);
1044
1045 list_for_each_safe(qe, qen, &fabric->vport_q) {
1046 vport = (struct bfa_fcs_vport_s *) qe;
1047 bfa_fcs_vport_online(vport);
1048 }
1049 }
1050
1051 static void
1052 bfa_fcs_fabric_notify_offline(struct bfa_fcs_fabric_s *fabric)
1053 {
1054 struct bfa_fcs_vport_s *vport;
1055 struct list_head *qe, *qen;
1056
1057 bfa_trc(fabric->fcs, fabric->fabric_name);
1058 fabric->stats.fabric_offlines++;
1059
1060 /*
1061 * notify offline event first to vports and then base port.
1062 */
1063 list_for_each_safe(qe, qen, &fabric->vport_q) {
1064 vport = (struct bfa_fcs_vport_s *) qe;
1065 bfa_fcs_vport_offline(vport);
1066 }
1067
1068 bfa_fcs_lport_offline(&fabric->bport);
1069
1070 fabric->fabric_name = 0;
1071 fabric->fabric_ip_addr[0] = 0;
1072 }
1073
1074 static void
1075 bfa_fcs_fabric_delay(void *cbarg)
1076 {
1077 struct bfa_fcs_fabric_s *fabric = cbarg;
1078
1079 bfa_sm_send_event(fabric, BFA_FCS_FABRIC_SM_DELAYED);
1080 }
1081
1082 /*
1083 * Stop all vports and wait for vport stop completions.
1084 */
1085 static void
1086 bfa_fcs_fabric_stop(struct bfa_fcs_fabric_s *fabric)
1087 {
1088 struct bfa_fcs_vport_s *vport;
1089 struct list_head *qe, *qen;
1090
1091 bfa_wc_init(&fabric->stop_wc, bfa_fcs_fabric_stop_comp, fabric);
1092
1093 list_for_each_safe(qe, qen, &fabric->vport_q) {
1094 vport = (struct bfa_fcs_vport_s *) qe;
1095 bfa_wc_up(&fabric->stop_wc);
1096 bfa_fcs_vport_fcs_stop(vport);
1097 }
1098
1099 bfa_wc_up(&fabric->stop_wc);
1100 bfa_fcs_lport_stop(&fabric->bport);
1101 bfa_wc_wait(&fabric->stop_wc);
1102 }
1103
1104 /*
1105 * Computes operating BB_SCN value
1106 */
1107 static u8
1108 bfa_fcs_fabric_oper_bbscn(struct bfa_fcs_fabric_s *fabric)
1109 {
1110 u8 pr_bbscn = fabric->lps->pr_bbscn;
1111 struct bfa_fcport_s *fcport = BFA_FCPORT_MOD(fabric->fcs->bfa);
1112
1113 if (!(fcport->cfg.bb_scn_state && pr_bbscn))
1114 return 0;
1115
1116 /* return max of local/remote bb_scn values */
1117 return ((pr_bbscn > BFA_FCS_PORT_DEF_BB_SCN) ?
1118 pr_bbscn : BFA_FCS_PORT_DEF_BB_SCN);
1119 }
1120
1121 /*
1122 * Check if BB_SCN can be enabled.
1123 */
1124 static bfa_boolean_t
1125 bfa_fcs_fabric_is_bbscn_enabled(struct bfa_fcs_fabric_s *fabric)
1126 {
1127 struct bfa_fcport_s *fcport = BFA_FCPORT_MOD(fabric->fcs->bfa);
1128
1129 if (bfa_ioc_get_fcmode(&fabric->fcs->bfa->ioc) &&
1130 fcport->cfg.bb_scn_state &&
1131 !bfa_fcport_is_qos_enabled(fabric->fcs->bfa) &&
1132 !bfa_fcport_is_trunk_enabled(fabric->fcs->bfa))
1133 return BFA_TRUE;
1134 else
1135 return BFA_FALSE;
1136 }
1137
1138 /*
1139 * Delete all vports and wait for vport delete completions.
1140 */
1141 static void
1142 bfa_fcs_fabric_delete(struct bfa_fcs_fabric_s *fabric)
1143 {
1144 struct bfa_fcs_vport_s *vport;
1145 struct list_head *qe, *qen;
1146
1147 list_for_each_safe(qe, qen, &fabric->vport_q) {
1148 vport = (struct bfa_fcs_vport_s *) qe;
1149 bfa_fcs_vport_fcs_delete(vport);
1150 }
1151
1152 bfa_fcs_lport_delete(&fabric->bport);
1153 bfa_wc_wait(&fabric->wc);
1154 }
1155
1156 static void
1157 bfa_fcs_fabric_delete_comp(void *cbarg)
1158 {
1159 struct bfa_fcs_fabric_s *fabric = cbarg;
1160
1161 bfa_sm_send_event(fabric, BFA_FCS_FABRIC_SM_DELCOMP);
1162 }
1163
1164 static void
1165 bfa_fcs_fabric_stop_comp(void *cbarg)
1166 {
1167 struct bfa_fcs_fabric_s *fabric = cbarg;
1168
1169 bfa_sm_send_event(fabric, BFA_FCS_FABRIC_SM_STOPCOMP);
1170 }
1171
1172 /*
1173 * fcs_fabric_public fabric public functions
1174 */
1175
1176 /*
1177 * Attach time initialization.
1178 */
1179 void
1180 bfa_fcs_fabric_attach(struct bfa_fcs_s *fcs)
1181 {
1182 struct bfa_fcs_fabric_s *fabric;
1183
1184 fabric = &fcs->fabric;
1185 memset(fabric, 0, sizeof(struct bfa_fcs_fabric_s));
1186
1187 /*
1188 * Initialize base fabric.
1189 */
1190 fabric->fcs = fcs;
1191 INIT_LIST_HEAD(&fabric->vport_q);
1192 INIT_LIST_HEAD(&fabric->vf_q);
1193 fabric->lps = bfa_lps_alloc(fcs->bfa);
1194 WARN_ON(!fabric->lps);
1195
1196 /*
1197 * Initialize fabric delete completion handler. Fabric deletion is
1198 * complete when the last vport delete is complete.
1199 */
1200 bfa_wc_init(&fabric->wc, bfa_fcs_fabric_delete_comp, fabric);
1201 bfa_wc_up(&fabric->wc); /* For the base port */
1202
1203 bfa_sm_set_state(fabric, bfa_fcs_fabric_sm_uninit);
1204 bfa_fcs_lport_attach(&fabric->bport, fabric->fcs, FC_VF_ID_NULL, NULL);
1205 }
1206
1207 void
1208 bfa_fcs_fabric_modinit(struct bfa_fcs_s *fcs)
1209 {
1210 bfa_sm_send_event(&fcs->fabric, BFA_FCS_FABRIC_SM_CREATE);
1211 bfa_trc(fcs, 0);
1212 }
1213
1214 /*
1215 * Module cleanup
1216 */
1217 void
1218 bfa_fcs_fabric_modexit(struct bfa_fcs_s *fcs)
1219 {
1220 struct bfa_fcs_fabric_s *fabric;
1221
1222 bfa_trc(fcs, 0);
1223
1224 /*
1225 * Cleanup base fabric.
1226 */
1227 fabric = &fcs->fabric;
1228 bfa_lps_delete(fabric->lps);
1229 bfa_sm_send_event(fabric, BFA_FCS_FABRIC_SM_DELETE);
1230 }
1231
1232 /*
1233 * Fabric module stop -- stop FCS actions
1234 */
1235 void
1236 bfa_fcs_fabric_modstop(struct bfa_fcs_s *fcs)
1237 {
1238 struct bfa_fcs_fabric_s *fabric;
1239
1240 bfa_trc(fcs, 0);
1241 fabric = &fcs->fabric;
1242 bfa_sm_send_event(fabric, BFA_FCS_FABRIC_SM_STOP);
1243 }
1244
1245 /*
1246 * Fabric module start -- kick starts FCS actions
1247 */
1248 void
1249 bfa_fcs_fabric_modstart(struct bfa_fcs_s *fcs)
1250 {
1251 struct bfa_fcs_fabric_s *fabric;
1252
1253 bfa_trc(fcs, 0);
1254 fabric = &fcs->fabric;
1255 bfa_sm_send_event(fabric, BFA_FCS_FABRIC_SM_START);
1256 }
1257
1258
1259 /*
1260 * Link up notification from BFA physical port module.
1261 */
1262 void
1263 bfa_fcs_fabric_link_up(struct bfa_fcs_fabric_s *fabric)
1264 {
1265 bfa_trc(fabric->fcs, fabric->bport.port_cfg.pwwn);
1266 bfa_sm_send_event(fabric, BFA_FCS_FABRIC_SM_LINK_UP);
1267 }
1268
1269 /*
1270 * Link down notification from BFA physical port module.
1271 */
1272 void
1273 bfa_fcs_fabric_link_down(struct bfa_fcs_fabric_s *fabric)
1274 {
1275 bfa_trc(fabric->fcs, fabric->bport.port_cfg.pwwn);
1276 fabric->fcs->bbscn_flogi_rjt = BFA_FALSE;
1277 bfa_sm_send_event(fabric, BFA_FCS_FABRIC_SM_LINK_DOWN);
1278 }
1279
1280 /*
1281 * A child vport is being created in the fabric.
1282 *
1283 * Call from vport module at vport creation. A list of base port and vports
1284 * belonging to a fabric is maintained to propagate link events.
1285 *
1286 * param[in] fabric - Fabric instance. This can be a base fabric or vf.
1287 * param[in] vport - Vport being created.
1288 *
1289 * @return None (always succeeds)
1290 */
1291 void
1292 bfa_fcs_fabric_addvport(struct bfa_fcs_fabric_s *fabric,
1293 struct bfa_fcs_vport_s *vport)
1294 {
1295 /*
1296 * - add vport to fabric's vport_q
1297 */
1298 bfa_trc(fabric->fcs, fabric->vf_id);
1299
1300 list_add_tail(&vport->qe, &fabric->vport_q);
1301 fabric->num_vports++;
1302 bfa_wc_up(&fabric->wc);
1303 }
1304
1305 /*
1306 * A child vport is being deleted from fabric.
1307 *
1308 * Vport is being deleted.
1309 */
1310 void
1311 bfa_fcs_fabric_delvport(struct bfa_fcs_fabric_s *fabric,
1312 struct bfa_fcs_vport_s *vport)
1313 {
1314 list_del(&vport->qe);
1315 fabric->num_vports--;
1316 bfa_wc_down(&fabric->wc);
1317 }
1318
1319
1320 /*
1321 * Lookup for a vport within a fabric given its pwwn
1322 */
1323 struct bfa_fcs_vport_s *
1324 bfa_fcs_fabric_vport_lookup(struct bfa_fcs_fabric_s *fabric, wwn_t pwwn)
1325 {
1326 struct bfa_fcs_vport_s *vport;
1327 struct list_head *qe;
1328
1329 list_for_each(qe, &fabric->vport_q) {
1330 vport = (struct bfa_fcs_vport_s *) qe;
1331 if (bfa_fcs_lport_get_pwwn(&vport->lport) == pwwn)
1332 return vport;
1333 }
1334
1335 return NULL;
1336 }
1337
1338
1339 /*
1340 * Get OUI of the attached switch.
1341 *
1342 * Note : Use of this function should be avoided as much as possible.
1343 * This function should be used only if there is any requirement
1344 * to check for FOS version below 6.3.
1345 * To check if the attached fabric is a brocade fabric, use
1346 * bfa_lps_is_brcd_fabric() which works for FOS versions 6.3
1347 * or above only.
1348 */
1349
1350 u16
1351 bfa_fcs_fabric_get_switch_oui(struct bfa_fcs_fabric_s *fabric)
1352 {
1353 wwn_t fab_nwwn;
1354 u8 *tmp;
1355 u16 oui;
1356
1357 fab_nwwn = fabric->lps->pr_nwwn;
1358
1359 tmp = (u8 *)&fab_nwwn;
1360 oui = (tmp[3] << 8) | tmp[4];
1361
1362 return oui;
1363 }
1364 /*
1365 * Unsolicited frame receive handling.
1366 */
1367 void
1368 bfa_fcs_fabric_uf_recv(struct bfa_fcs_fabric_s *fabric, struct fchs_s *fchs,
1369 u16 len)
1370 {
1371 u32 pid = fchs->d_id;
1372 struct bfa_fcs_vport_s *vport;
1373 struct list_head *qe;
1374 struct fc_els_cmd_s *els_cmd = (struct fc_els_cmd_s *) (fchs + 1);
1375 struct fc_logi_s *flogi = (struct fc_logi_s *) els_cmd;
1376
1377 bfa_trc(fabric->fcs, len);
1378 bfa_trc(fabric->fcs, pid);
1379
1380 /*
1381 * Look for our own FLOGI frames being looped back. This means an
1382 * external loopback cable is in place. Our own FLOGI frames are
1383 * sometimes looped back when switch port gets temporarily bypassed.
1384 */
1385 if ((pid == bfa_ntoh3b(FC_FABRIC_PORT)) &&
1386 (els_cmd->els_code == FC_ELS_FLOGI) &&
1387 (flogi->port_name == bfa_fcs_lport_get_pwwn(&fabric->bport))) {
1388 bfa_sm_send_event(fabric, BFA_FCS_FABRIC_SM_LOOPBACK);
1389 return;
1390 }
1391
1392 /*
1393 * FLOGI/EVFP exchanges should be consumed by base fabric.
1394 */
1395 if (fchs->d_id == bfa_hton3b(FC_FABRIC_PORT)) {
1396 bfa_trc(fabric->fcs, pid);
1397 bfa_fcs_fabric_process_uf(fabric, fchs, len);
1398 return;
1399 }
1400
1401 if (fabric->bport.pid == pid) {
1402 /*
1403 * All authentication frames should be routed to auth
1404 */
1405 bfa_trc(fabric->fcs, els_cmd->els_code);
1406 if (els_cmd->els_code == FC_ELS_AUTH) {
1407 bfa_trc(fabric->fcs, els_cmd->els_code);
1408 return;
1409 }
1410
1411 bfa_trc(fabric->fcs, *(u8 *) ((u8 *) fchs));
1412 bfa_fcs_lport_uf_recv(&fabric->bport, fchs, len);
1413 return;
1414 }
1415
1416 /*
1417 * look for a matching local port ID
1418 */
1419 list_for_each(qe, &fabric->vport_q) {
1420 vport = (struct bfa_fcs_vport_s *) qe;
1421 if (vport->lport.pid == pid) {
1422 bfa_fcs_lport_uf_recv(&vport->lport, fchs, len);
1423 return;
1424 }
1425 }
1426
1427 if (!bfa_fcs_fabric_is_switched(fabric))
1428 bfa_fcs_lport_uf_recv(&fabric->bport, fchs, len);
1429
1430 bfa_trc(fabric->fcs, fchs->type);
1431 }
1432
1433 /*
1434 * Unsolicited frames to be processed by fabric.
1435 */
1436 static void
1437 bfa_fcs_fabric_process_uf(struct bfa_fcs_fabric_s *fabric, struct fchs_s *fchs,
1438 u16 len)
1439 {
1440 struct fc_els_cmd_s *els_cmd = (struct fc_els_cmd_s *) (fchs + 1);
1441
1442 bfa_trc(fabric->fcs, els_cmd->els_code);
1443
1444 switch (els_cmd->els_code) {
1445 case FC_ELS_FLOGI:
1446 bfa_fcs_fabric_process_flogi(fabric, fchs, len);
1447 break;
1448
1449 default:
1450 /*
1451 * need to generate a LS_RJT
1452 */
1453 break;
1454 }
1455 }
1456
1457 /*
1458 * Process incoming FLOGI
1459 */
1460 static void
1461 bfa_fcs_fabric_process_flogi(struct bfa_fcs_fabric_s *fabric,
1462 struct fchs_s *fchs, u16 len)
1463 {
1464 struct fc_logi_s *flogi = (struct fc_logi_s *) (fchs + 1);
1465 struct bfa_fcs_lport_s *bport = &fabric->bport;
1466
1467 bfa_trc(fabric->fcs, fchs->s_id);
1468
1469 fabric->stats.flogi_rcvd++;
1470 /*
1471 * Check port type. It should be 0 = n-port.
1472 */
1473 if (flogi->csp.port_type) {
1474 /*
1475 * @todo: may need to send a LS_RJT
1476 */
1477 bfa_trc(fabric->fcs, flogi->port_name);
1478 fabric->stats.flogi_rejected++;
1479 return;
1480 }
1481
1482 fabric->bb_credit = be16_to_cpu(flogi->csp.bbcred);
1483 fabric->lps->pr_bbscn = (be16_to_cpu(flogi->csp.rxsz) >> 12);
1484 bport->port_topo.pn2n.rem_port_wwn = flogi->port_name;
1485 bport->port_topo.pn2n.reply_oxid = fchs->ox_id;
1486
1487 /*
1488 * Send a Flogi Acc
1489 */
1490 bfa_fcs_fabric_send_flogi_acc(fabric);
1491 bfa_sm_send_event(fabric, BFA_FCS_FABRIC_SM_NO_FABRIC);
1492 }
1493
1494 static void
1495 bfa_fcs_fabric_send_flogi_acc(struct bfa_fcs_fabric_s *fabric)
1496 {
1497 struct bfa_lport_cfg_s *pcfg = &fabric->bport.port_cfg;
1498 struct bfa_fcs_lport_n2n_s *n2n_port = &fabric->bport.port_topo.pn2n;
1499 struct bfa_s *bfa = fabric->fcs->bfa;
1500 struct bfa_fcxp_s *fcxp;
1501 u16 reqlen;
1502 struct fchs_s fchs;
1503
1504 fcxp = bfa_fcs_fcxp_alloc(fabric->fcs, BFA_FALSE);
1505 /*
1506 * Do not expect this failure -- expect remote node to retry
1507 */
1508 if (!fcxp)
1509 return;
1510
1511 reqlen = fc_flogi_acc_build(&fchs, bfa_fcxp_get_reqbuf(fcxp),
1512 bfa_hton3b(FC_FABRIC_PORT),
1513 n2n_port->reply_oxid, pcfg->pwwn,
1514 pcfg->nwwn,
1515 bfa_fcport_get_maxfrsize(bfa),
1516 bfa_fcport_get_rx_bbcredit(bfa),
1517 bfa_fcs_fabric_oper_bbscn(fabric));
1518
1519 bfa_fcxp_send(fcxp, NULL, fabric->vf_id, fabric->lps->bfa_tag,
1520 BFA_FALSE, FC_CLASS_3,
1521 reqlen, &fchs, bfa_fcs_fabric_flogiacc_comp, fabric,
1522 FC_MAX_PDUSZ, 0);
1523 }
1524
1525 /*
1526 * Flogi Acc completion callback.
1527 */
1528 static void
1529 bfa_fcs_fabric_flogiacc_comp(void *fcsarg, struct bfa_fcxp_s *fcxp, void *cbarg,
1530 bfa_status_t status, u32 rsp_len,
1531 u32 resid_len, struct fchs_s *rspfchs)
1532 {
1533 struct bfa_fcs_fabric_s *fabric = cbarg;
1534
1535 bfa_trc(fabric->fcs, status);
1536 }
1537
1538
1539 /*
1540 * Send AEN notification
1541 */
1542 static void
1543 bfa_fcs_fabric_aen_post(struct bfa_fcs_lport_s *port,
1544 enum bfa_port_aen_event event)
1545 {
1546 struct bfad_s *bfad = (struct bfad_s *)port->fabric->fcs->bfad;
1547 struct bfa_aen_entry_s *aen_entry;
1548
1549 bfad_get_aen_entry(bfad, aen_entry);
1550 if (!aen_entry)
1551 return;
1552
1553 aen_entry->aen_data.port.pwwn = bfa_fcs_lport_get_pwwn(port);
1554 aen_entry->aen_data.port.fwwn = bfa_fcs_lport_get_fabric_name(port);
1555
1556 /* Send the AEN notification */
1557 bfad_im_post_vendor_event(aen_entry, bfad, ++port->fcs->fcs_aen_seq,
1558 BFA_AEN_CAT_PORT, event);
1559 }
1560
1561 /*
1562 *
1563 * @param[in] fabric - fabric
1564 * @param[in] wwn_t - new fabric name
1565 *
1566 * @return - none
1567 */
1568 void
1569 bfa_fcs_fabric_set_fabric_name(struct bfa_fcs_fabric_s *fabric,
1570 wwn_t fabric_name)
1571 {
1572 struct bfad_s *bfad = (struct bfad_s *)fabric->fcs->bfad;
1573 char pwwn_ptr[BFA_STRING_32];
1574 char fwwn_ptr[BFA_STRING_32];
1575
1576 bfa_trc(fabric->fcs, fabric_name);
1577
1578 if (fabric->fabric_name == 0) {
1579 /*
1580 * With BRCD switches, we don't get Fabric Name in FLOGI.
1581 * Don't generate a fabric name change event in this case.
1582 */
1583 fabric->fabric_name = fabric_name;
1584 } else {
1585 fabric->fabric_name = fabric_name;
1586 wwn2str(pwwn_ptr, bfa_fcs_lport_get_pwwn(&fabric->bport));
1587 wwn2str(fwwn_ptr,
1588 bfa_fcs_lport_get_fabric_name(&fabric->bport));
1589 BFA_LOG(KERN_WARNING, bfad, bfa_log_level,
1590 "Base port WWN = %s Fabric WWN = %s\n",
1591 pwwn_ptr, fwwn_ptr);
1592 bfa_fcs_fabric_aen_post(&fabric->bport,
1593 BFA_PORT_AEN_FABRIC_NAME_CHANGE);
1594 }
1595 }
1596
1597 void
1598 bfa_cb_lps_flogo_comp(void *bfad, void *uarg)
1599 {
1600 struct bfa_fcs_fabric_s *fabric = uarg;
1601 bfa_sm_send_event(fabric, BFA_FCS_FABRIC_SM_LOGOCOMP);
1602 }
1603
1604 /*
1605 * Returns FCS vf structure for a given vf_id.
1606 *
1607 * param[in] vf_id - VF_ID
1608 *
1609 * return
1610 * If lookup succeeds, retuns fcs vf object, otherwise returns NULL
1611 */
1612 bfa_fcs_vf_t *
1613 bfa_fcs_vf_lookup(struct bfa_fcs_s *fcs, u16 vf_id)
1614 {
1615 bfa_trc(fcs, vf_id);
1616 if (vf_id == FC_VF_ID_NULL)
1617 return &fcs->fabric;
1618
1619 return NULL;
1620 }
1621
1622 /*
1623 * Return the list of local logical ports present in the given VF.
1624 *
1625 * @param[in] vf vf for which logical ports are returned
1626 * @param[out] lpwwn returned logical port wwn list
1627 * @param[in,out] nlports in:size of lpwwn list;
1628 * out:total elements present,
1629 * actual elements returned is limited by the size
1630 */
1631 void
1632 bfa_fcs_vf_get_ports(bfa_fcs_vf_t *vf, wwn_t lpwwn[], int *nlports)
1633 {
1634 struct list_head *qe;
1635 struct bfa_fcs_vport_s *vport;
1636 int i = 0;
1637 struct bfa_fcs_s *fcs;
1638
1639 if (vf == NULL || lpwwn == NULL || *nlports == 0)
1640 return;
1641
1642 fcs = vf->fcs;
1643
1644 bfa_trc(fcs, vf->vf_id);
1645 bfa_trc(fcs, (uint32_t) *nlports);
1646
1647 lpwwn[i++] = vf->bport.port_cfg.pwwn;
1648
1649 list_for_each(qe, &vf->vport_q) {
1650 if (i >= *nlports)
1651 break;
1652
1653 vport = (struct bfa_fcs_vport_s *) qe;
1654 lpwwn[i++] = vport->lport.port_cfg.pwwn;
1655 }
1656
1657 bfa_trc(fcs, i);
1658 *nlports = i;
1659 }
1660
1661 /*
1662 * BFA FCS PPORT ( physical port)
1663 */
1664 static void
1665 bfa_fcs_port_event_handler(void *cbarg, enum bfa_port_linkstate event)
1666 {
1667 struct bfa_fcs_s *fcs = cbarg;
1668
1669 bfa_trc(fcs, event);
1670
1671 switch (event) {
1672 case BFA_PORT_LINKUP:
1673 bfa_fcs_fabric_link_up(&fcs->fabric);
1674 break;
1675
1676 case BFA_PORT_LINKDOWN:
1677 bfa_fcs_fabric_link_down(&fcs->fabric);
1678 break;
1679
1680 default:
1681 WARN_ON(1);
1682 }
1683 }
1684
1685 void
1686 bfa_fcs_port_attach(struct bfa_fcs_s *fcs)
1687 {
1688 bfa_fcport_event_register(fcs->bfa, bfa_fcs_port_event_handler, fcs);
1689 }
1690
1691 /*
1692 * BFA FCS UF ( Unsolicited Frames)
1693 */
1694
1695 /*
1696 * BFA callback for unsolicited frame receive handler.
1697 *
1698 * @param[in] cbarg callback arg for receive handler
1699 * @param[in] uf unsolicited frame descriptor
1700 *
1701 * @return None
1702 */
1703 static void
1704 bfa_fcs_uf_recv(void *cbarg, struct bfa_uf_s *uf)
1705 {
1706 struct bfa_fcs_s *fcs = (struct bfa_fcs_s *) cbarg;
1707 struct fchs_s *fchs = bfa_uf_get_frmbuf(uf);
1708 u16 len = bfa_uf_get_frmlen(uf);
1709 struct fc_vft_s *vft;
1710 struct bfa_fcs_fabric_s *fabric;
1711
1712 /*
1713 * check for VFT header
1714 */
1715 if (fchs->routing == FC_RTG_EXT_HDR &&
1716 fchs->cat_info == FC_CAT_VFT_HDR) {
1717 bfa_stats(fcs, uf.tagged);
1718 vft = bfa_uf_get_frmbuf(uf);
1719 if (fcs->port_vfid == vft->vf_id)
1720 fabric = &fcs->fabric;
1721 else
1722 fabric = bfa_fcs_vf_lookup(fcs, (u16) vft->vf_id);
1723
1724 /*
1725 * drop frame if vfid is unknown
1726 */
1727 if (!fabric) {
1728 WARN_ON(1);
1729 bfa_stats(fcs, uf.vfid_unknown);
1730 bfa_uf_free(uf);
1731 return;
1732 }
1733
1734 /*
1735 * skip vft header
1736 */
1737 fchs = (struct fchs_s *) (vft + 1);
1738 len -= sizeof(struct fc_vft_s);
1739
1740 bfa_trc(fcs, vft->vf_id);
1741 } else {
1742 bfa_stats(fcs, uf.untagged);
1743 fabric = &fcs->fabric;
1744 }
1745
1746 bfa_trc(fcs, ((u32 *) fchs)[0]);
1747 bfa_trc(fcs, ((u32 *) fchs)[1]);
1748 bfa_trc(fcs, ((u32 *) fchs)[2]);
1749 bfa_trc(fcs, ((u32 *) fchs)[3]);
1750 bfa_trc(fcs, ((u32 *) fchs)[4]);
1751 bfa_trc(fcs, ((u32 *) fchs)[5]);
1752 bfa_trc(fcs, len);
1753
1754 bfa_fcs_fabric_uf_recv(fabric, fchs, len);
1755 bfa_uf_free(uf);
1756 }
1757
1758 void
1759 bfa_fcs_uf_attach(struct bfa_fcs_s *fcs)
1760 {
1761 bfa_uf_recv_register(fcs->bfa, bfa_fcs_uf_recv, fcs);
1762 }
CJK support for tty framebuffer vt