aboutsummaryrefslogtreecommitdiff
path: root/drivers/scsi/bfa/vport.c
blob: 27cd619a227a7a191acda944c8917fa7f000d257 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786
787
788
789
790
791
792
793
794
795
796
797
798
799
800
801
802
803
804
805
806
807
808
809
810
811
812
813
814
815
816
817
818
819
820
821
822
823
824
825
826
827
828
829
830
831
832
833
834
835
836
837
838
839
840
841
842
843
844
845
846
847
848
849
850
851
852
853
854
855
856
857
/*
 * Copyright (c) 2005-2009 Brocade Communications Systems, Inc.
 * All rights reserved
 * www.brocade.com
 *
 * Linux driver for Brocade Fibre Channel Host Bus Adapter.
 *
 * This program is free software; you can redistribute it and/or modify it
 * under the terms of the GNU General Public License (GPL) Version 2 as
 * published by the Free Software Foundation
 *
 * This program is distributed in the hope that it will be useful, but
 * WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * General Public License for more details.
 */

/**
 *  bfa_fcs_vport.c FCS virtual port state machine
 */

#include <bfa.h>
#include <bfa_svc.h>
#include <fcbuild.h>
#include "fcs_fabric.h"
#include "fcs_lport.h"
#include "fcs_vport.h"
#include "fcs_trcmod.h"
#include "fcs.h"
#include <aen/bfa_aen_lport.h>

BFA_TRC_FILE(FCS, VPORT);

#define __vport_fcs(__vp)       ((__vp)->lport.fcs)
#define __vport_pwwn(__vp)      ((__vp)->lport.port_cfg.pwwn)
#define __vport_nwwn(__vp)      ((__vp)->lport.port_cfg.nwwn)
#define __vport_bfa(__vp)       ((__vp)->lport.fcs->bfa)
#define __vport_fcid(__vp)      ((__vp)->lport.pid)
#define __vport_fabric(__vp)    ((__vp)->lport.fabric)
#define __vport_vfid(__vp)      ((__vp)->lport.fabric->vf_id)

#define BFA_FCS_VPORT_MAX_RETRIES  5
/*
 * Forward declarations
 */
static void     bfa_fcs_vport_do_fdisc(struct bfa_fcs_vport_s *vport);
static void     bfa_fcs_vport_timeout(void *vport_arg);
static void     bfa_fcs_vport_do_logo(struct bfa_fcs_vport_s *vport);
static void     bfa_fcs_vport_free(struct bfa_fcs_vport_s *vport);

/**
 *  fcs_vport_sm FCS virtual port state machine
 */

/**
 * VPort State Machine events
 */
enum bfa_fcs_vport_event {
	BFA_FCS_VPORT_SM_CREATE = 1,	/*  vport create event */
	BFA_FCS_VPORT_SM_DELETE = 2,	/*  vport delete event */
	BFA_FCS_VPORT_SM_START = 3,	/*  vport start request */
	BFA_FCS_VPORT_SM_STOP = 4,	/*  stop: unsupported */
	BFA_FCS_VPORT_SM_ONLINE = 5,	/*  fabric online */
	BFA_FCS_VPORT_SM_OFFLINE = 6,	/*  fabric offline event */
	BFA_FCS_VPORT_SM_FRMSENT = 7,	/*  fdisc/logo sent events */
	BFA_FCS_VPORT_SM_RSP_OK = 8,	/*  good response */
	BFA_FCS_VPORT_SM_RSP_ERROR = 9,	/*  error/bad response */
	BFA_FCS_VPORT_SM_TIMEOUT = 10,	/*  delay timer event */
	BFA_FCS_VPORT_SM_DELCOMP = 11,	/*  lport delete completion */
	BFA_FCS_VPORT_SM_RSP_DUP_WWN = 12,	/*  Dup wnn error */
	BFA_FCS_VPORT_SM_RSP_FAILED = 13,	/*  non-retryable failure */
};

static void     bfa_fcs_vport_sm_uninit(struct bfa_fcs_vport_s *vport,
					enum bfa_fcs_vport_event event);
static void     bfa_fcs_vport_sm_created(struct bfa_fcs_vport_s *vport,
					 enum bfa_fcs_vport_event event);
static void     bfa_fcs_vport_sm_offline(struct bfa_fcs_vport_s *vport,
					 enum bfa_fcs_vport_event event);
static void     bfa_fcs_vport_sm_fdisc(struct bfa_fcs_vport_s *vport,
				       enum bfa_fcs_vport_event event);
static void     bfa_fcs_vport_sm_fdisc_retry(struct bfa_fcs_vport_s *vport,
					     enum bfa_fcs_vport_event event);
static void     bfa_fcs_vport_sm_online(struct bfa_fcs_vport_s *vport,
					enum bfa_fcs_vport_event event);
static void     bfa_fcs_vport_sm_deleting(struct bfa_fcs_vport_s *vport,
					  enum bfa_fcs_vport_event event);
static void     bfa_fcs_vport_sm_cleanup(struct bfa_fcs_vport_s *vport,
					 enum bfa_fcs_vport_event event);
static void     bfa_fcs_vport_sm_logo(struct bfa_fcs_vport_s *vport,
				      enum bfa_fcs_vport_event event);
static void     bfa_fcs_vport_sm_error(struct bfa_fcs_vport_s *vport,
				       enum bfa_fcs_vport_event event);

static struct bfa_sm_table_s vport_sm_table[] = {
	{BFA_SM(bfa_fcs_vport_sm_uninit), BFA_FCS_VPORT_UNINIT},
	{BFA_SM(bfa_fcs_vport_sm_created), BFA_FCS_VPORT_CREATED},
	{BFA_SM(bfa_fcs_vport_sm_offline), BFA_FCS_VPORT_OFFLINE},
	{BFA_SM(bfa_fcs_vport_sm_fdisc), BFA_FCS_VPORT_FDISC},
	{BFA_SM(bfa_fcs_vport_sm_fdisc_retry), BFA_FCS_VPORT_FDISC_RETRY},
	{BFA_SM(bfa_fcs_vport_sm_online), BFA_FCS_VPORT_ONLINE},
	{BFA_SM(bfa_fcs_vport_sm_deleting), BFA_FCS_VPORT_DELETING},
	{BFA_SM(bfa_fcs_vport_sm_cleanup), BFA_FCS_VPORT_CLEANUP},
	{BFA_SM(bfa_fcs_vport_sm_logo), BFA_FCS_VPORT_LOGO},
	{BFA_SM(bfa_fcs_vport_sm_error), BFA_FCS_VPORT_ERROR}
};

/**
 * Beginning state.
 */
static void
bfa_fcs_vport_sm_uninit(struct bfa_fcs_vport_s *vport,
			enum bfa_fcs_vport_event event)
{
	bfa_trc(__vport_fcs(vport), __vport_pwwn(vport));
	bfa_trc(__vport_fcs(vport), event);

	switch (event) {
	case BFA_FCS_VPORT_SM_CREATE:
		bfa_sm_set_state(vport, bfa_fcs_vport_sm_created);
		bfa_fcs_fabric_addvport(__vport_fabric(vport), vport);
		break;

	default:
		bfa_sm_fault(__vport_fcs(vport), event);
	}
}

/**
 * Created state - a start event is required to start up the state machine.
 */
static void
bfa_fcs_vport_sm_created(struct bfa_fcs_vport_s *vport,
			 enum bfa_fcs_vport_event event)
{
	bfa_trc(__vport_fcs(vport), __vport_pwwn(vport));
	bfa_trc(__vport_fcs(vport), event);

	switch (event) {
	case BFA_FCS_VPORT_SM_START:
		if (bfa_fcs_fabric_is_online(__vport_fabric(vport))
		    && bfa_fcs_fabric_npiv_capable(__vport_fabric(vport))) {
			bfa_sm_set_state(vport, bfa_fcs_vport_sm_fdisc);
			bfa_fcs_vport_do_fdisc(vport);
		} else {
			/**
			 * Fabric is offline or not NPIV capable, stay in
			 * offline state.
			 */
			vport->vport_stats.fab_no_npiv++;
			bfa_sm_set_state(vport, bfa_fcs_vport_sm_offline);
		}
		break;

	case BFA_FCS_VPORT_SM_DELETE:
		bfa_sm_set_state(vport, bfa_fcs_vport_sm_cleanup);
		bfa_fcs_port_delete(&vport->lport);
		break;

	case BFA_FCS_VPORT_SM_ONLINE:
	case BFA_FCS_VPORT_SM_OFFLINE:
		/**
		 * Ignore ONLINE/OFFLINE events from fabric till vport is started.
		 */
		break;

	default:
		bfa_sm_fault(__vport_fcs(vport), event);
	}
}

/**
 * Offline state - awaiting ONLINE event from fabric SM.
 */
static void
bfa_fcs_vport_sm_offline(struct bfa_fcs_vport_s *vport,
			 enum bfa_fcs_vport_event event)
{
	bfa_trc(__vport_fcs(vport), __vport_pwwn(vport));
	bfa_trc(__vport_fcs(vport), event);

	switch (event) {
	case BFA_FCS_VPORT_SM_DELETE:
		bfa_sm_set_state(vport, bfa_fcs_vport_sm_cleanup);
		bfa_fcs_port_delete(&vport->lport);
		break;

	case BFA_FCS_VPORT_SM_ONLINE:
		bfa_sm_set_state(vport, bfa_fcs_vport_sm_fdisc);
		vport->fdisc_retries = 0;
		bfa_fcs_vport_do_fdisc(vport);
		break;

	case BFA_FCS_VPORT_SM_OFFLINE:
		/*
		 * This can happen if the vport couldn't be initialzied due
		 * the fact that the npiv was not enabled on the switch. In
		 * that case we will put the vport in offline state. However,
		 * the link can go down and cause the this event to be sent when
		 * we are already offline. Ignore it.
		 */
		break;

	default:
		bfa_sm_fault(__vport_fcs(vport), event);
	}
}

/**
 * FDISC is sent and awaiting reply from fabric.
 */
static void
bfa_fcs_vport_sm_fdisc(struct bfa_fcs_vport_s *vport,
		       enum bfa_fcs_vport_event event)
{
	bfa_trc(__vport_fcs(vport), __vport_pwwn(vport));
	bfa_trc(__vport_fcs(vport), event);

	switch (event) {
	case BFA_FCS_VPORT_SM_DELETE:
		bfa_sm_set_state(vport, bfa_fcs_vport_sm_logo);
		bfa_lps_discard(vport->lps);
		bfa_fcs_vport_do_logo(vport);
		break;

	case BFA_FCS_VPORT_SM_OFFLINE:
		bfa_sm_set_state(vport, bfa_fcs_vport_sm_offline);
		bfa_lps_discard(vport->lps);
		break;

	case BFA_FCS_VPORT_SM_RSP_OK:
		bfa_sm_set_state(vport, bfa_fcs_vport_sm_online);
		bfa_fcs_port_online(&vport->lport);
		break;

	case BFA_FCS_VPORT_SM_RSP_ERROR:
		bfa_sm_set_state(vport, bfa_fcs_vport_sm_fdisc_retry);
		bfa_timer_start(__vport_bfa(vport), &vport->timer,
				bfa_fcs_vport_timeout, vport,
				BFA_FCS_RETRY_TIMEOUT);
		break;

	case BFA_FCS_VPORT_SM_RSP_FAILED:
		bfa_sm_set_state(vport, bfa_fcs_vport_sm_offline);
		break;

	case BFA_FCS_VPORT_SM_RSP_DUP_WWN:
		bfa_sm_set_state(vport, bfa_fcs_vport_sm_error);
		break;

	default:
		bfa_sm_fault(__vport_fcs(vport), event);
	}
}

/**
 * FDISC attempt failed - a timer is active to retry FDISC.
 */
static void
bfa_fcs_vport_sm_fdisc_retry(struct bfa_fcs_vport_s *vport,
			     enum bfa_fcs_vport_event event)
{
	bfa_trc(__vport_fcs(vport), __vport_pwwn(vport));
	bfa_trc(__vport_fcs(vport), event);

	switch (event) {
	case BFA_FCS_VPORT_SM_DELETE:
		bfa_sm_set_state(vport, bfa_fcs_vport_sm_cleanup);
		bfa_timer_stop(&vport->timer);
		bfa_fcs_port_delete(&vport->lport);
		break;

	case BFA_FCS_VPORT_SM_OFFLINE:
		bfa_sm_set_state(vport, bfa_fcs_vport_sm_offline);
		bfa_timer_stop(&vport->timer);
		break;

	case BFA_FCS_VPORT_SM_TIMEOUT:
		bfa_sm_set_state(vport, bfa_fcs_vport_sm_fdisc);
		vport->vport_stats.fdisc_retries++;
		vport->fdisc_retries++;
		bfa_fcs_vport_do_fdisc(vport);
		break;

	default:
		bfa_sm_fault(__vport_fcs(vport), event);
	}
}

/**
 * Vport is online (FDISC is complete).
 */
static void
bfa_fcs_vport_sm_online(struct bfa_fcs_vport_s *vport,
			enum bfa_fcs_vport_event event)
{
	bfa_trc(__vport_fcs(vport), __vport_pwwn(vport));
	bfa_trc(__vport_fcs(vport), event);

	switch (event) {
	case BFA_FCS_VPORT_SM_DELETE:
		bfa_sm_set_state(vport, bfa_fcs_vport_sm_deleting);
		bfa_fcs_port_delete(&vport->lport);
		break;

	case BFA_FCS_VPORT_SM_OFFLINE:
		bfa_sm_set_state(vport, bfa_fcs_vport_sm_offline);
		bfa_lps_discard(vport->lps);
		bfa_fcs_port_offline(&vport->lport);
		break;

	default:
		bfa_sm_fault(__vport_fcs(vport), event);
	}
}

/**
 * Vport is being deleted - awaiting lport delete completion to send
 * LOGO to fabric.
 */
static void
bfa_fcs_vport_sm_deleting(struct bfa_fcs_vport_s *vport,
			  enum bfa_fcs_vport_event event)
{
	bfa_trc(__vport_fcs(vport), __vport_pwwn(vport));
	bfa_trc(__vport_fcs(vport), event);

	switch (event) {
	case BFA_FCS_VPORT_SM_DELETE:
		break;

	case BFA_FCS_VPORT_SM_DELCOMP:
		bfa_sm_set_state(vport, bfa_fcs_vport_sm_logo);
		bfa_fcs_vport_do_logo(vport);
		break;

	case BFA_FCS_VPORT_SM_OFFLINE:
		bfa_sm_set_state(vport, bfa_fcs_vport_sm_cleanup);
		break;

	default:
		bfa_sm_fault(__vport_fcs(vport), event);
	}
}

/**
 * Error State.
 * This state will be set when the Vport Creation fails due to errors like
 * Dup WWN. In this state only operation allowed is a Vport Delete.
 */
static void
bfa_fcs_vport_sm_error(struct bfa_fcs_vport_s *vport,
		       enum bfa_fcs_vport_event event)
{
	bfa_trc(__vport_fcs(vport), __vport_pwwn(vport));
	bfa_trc(__vport_fcs(vport), event);

	switch (event) {
	case BFA_FCS_VPORT_SM_DELETE:
		bfa_sm_set_state(vport, bfa_fcs_vport_sm_uninit);
		bfa_fcs_vport_free(vport);
		break;

	default:
		bfa_trc(__vport_fcs(vport), event);
	}
}

/**
 * Lport cleanup is in progress since vport is being deleted. Fabric is
 * offline, so no LOGO is needed to complete vport deletion.
 */
static void
bfa_fcs_vport_sm_cleanup(struct bfa_fcs_vport_s *vport,
			 enum bfa_fcs_vport_event event)
{
	bfa_trc(__vport_fcs(vport), __vport_pwwn(vport));
	bfa_trc(__vport_fcs(vport), event);

	switch (event) {
	case BFA_FCS_VPORT_SM_DELCOMP:
		bfa_sm_set_state(vport, bfa_fcs_vport_sm_uninit);
		bfa_fcs_vport_free(vport);
		break;

	case BFA_FCS_VPORT_SM_DELETE:
		break;

	default:
		bfa_sm_fault(__vport_fcs(vport), event);
	}
}

/**
 * LOGO is sent to fabric. Vport delete is in progress. Lport delete cleanup
 * is done.
 */
static void
bfa_fcs_vport_sm_logo(struct bfa_fcs_vport_s *vport,
		      enum bfa_fcs_vport_event event)
{
	bfa_trc(__vport_fcs(vport), __vport_pwwn(vport));
	bfa_trc(__vport_fcs(vport), event);

	switch (event) {
	case BFA_FCS_VPORT_SM_OFFLINE:
		bfa_lps_discard(vport->lps);
		/*
		 * !!! fall through !!!
		 */

	case BFA_FCS_VPORT_SM_RSP_OK:
	case BFA_FCS_VPORT_SM_RSP_ERROR:
		bfa_sm_set_state(vport, bfa_fcs_vport_sm_uninit);
		bfa_fcs_vport_free(vport);
		break;

	case BFA_FCS_VPORT_SM_DELETE:
		break;

	default:
		bfa_sm_fault(__vport_fcs(vport), event);
	}
}



/**
 *  fcs_vport_private FCS virtual port private functions
 */

/**
 * Send AEN notification
 */
static void
bfa_fcs_vport_aen_post(bfa_fcs_lport_t *port, enum bfa_lport_aen_event event)
{
	union bfa_aen_data_u aen_data;
	struct bfa_log_mod_s *logmod = port->fcs->logm;
	enum bfa_port_role role = port->port_cfg.roles;
	wwn_t           lpwwn = bfa_fcs_port_get_pwwn(port);
	char            lpwwn_ptr[BFA_STRING_32];
	char           *role_str[BFA_PORT_ROLE_FCP_MAX / 2 + 1] =
		{ "Initiator", "Target", "IPFC" };

	wwn2str(lpwwn_ptr, lpwwn);

	bfa_assert(role <= BFA_PORT_ROLE_FCP_MAX);

	bfa_log(logmod, BFA_LOG_CREATE_ID(BFA_AEN_CAT_LPORT, event), lpwwn_ptr,
			role_str[role/2]);

	aen_data.lport.vf_id = port->fabric->vf_id;
	aen_data.lport.roles = role;
	aen_data.lport.ppwwn =
		bfa_fcs_port_get_pwwn(bfa_fcs_get_base_port(port->fcs));
	aen_data.lport.lpwwn = lpwwn;
}

/**
 * This routine will be called to send a FDISC command.
 */
static void
bfa_fcs_vport_do_fdisc(struct bfa_fcs_vport_s *vport)
{
	bfa_lps_fdisc(vport->lps, vport,
		      bfa_fcport_get_maxfrsize(__vport_bfa(vport)),
		      __vport_pwwn(vport), __vport_nwwn(vport));
	vport->vport_stats.fdisc_sent++;
}

static void
bfa_fcs_vport_fdisc_rejected(struct bfa_fcs_vport_s *vport)
{
	u8         lsrjt_rsn = bfa_lps_get_lsrjt_rsn(vport->lps);
	u8         lsrjt_expl = bfa_lps_get_lsrjt_expl(vport->lps);

	bfa_trc(__vport_fcs(vport), lsrjt_rsn);
	bfa_trc(__vport_fcs(vport), lsrjt_expl);

	/*
	 * For certain reason codes, we don't want to retry.
	 */
	switch (bfa_lps_get_lsrjt_expl(vport->lps)) {
	case FC_LS_RJT_EXP_INV_PORT_NAME:	/* by brocade */
	case FC_LS_RJT_EXP_INVALID_NPORT_ID:	/* by Cisco */
		if (vport->fdisc_retries < BFA_FCS_VPORT_MAX_RETRIES)
			bfa_sm_send_event(vport, BFA_FCS_VPORT_SM_RSP_ERROR);
		else {
			bfa_fcs_vport_aen_post(&vport->lport,
					       BFA_LPORT_AEN_NPIV_DUP_WWN);
			bfa_sm_send_event(vport, BFA_FCS_VPORT_SM_RSP_DUP_WWN);
		}
		break;

	case FC_LS_RJT_EXP_INSUFF_RES:
		/*
		 * This means max logins per port/switch setting on the
		 * switch was exceeded.
		 */
		if (vport->fdisc_retries < BFA_FCS_VPORT_MAX_RETRIES)
			bfa_sm_send_event(vport, BFA_FCS_VPORT_SM_RSP_ERROR);
		else {
			bfa_fcs_vport_aen_post(&vport->lport,
					       BFA_LPORT_AEN_NPIV_FABRIC_MAX);
			bfa_sm_send_event(vport, BFA_FCS_VPORT_SM_RSP_FAILED);
		}
		break;

	default:
		if (vport->fdisc_retries == 0)	/* Print only once */
			bfa_fcs_vport_aen_post(&vport->lport,
					       BFA_LPORT_AEN_NPIV_UNKNOWN);
		bfa_sm_send_event(vport, BFA_FCS_VPORT_SM_RSP_ERROR);
	}
}

/**
 * 	Called to send a logout to the fabric. Used when a V-Port is
 * 	deleted/stopped.
 */
static void
bfa_fcs_vport_do_logo(struct bfa_fcs_vport_s *vport)
{
	bfa_trc(__vport_fcs(vport), __vport_pwwn(vport));

	vport->vport_stats.logo_sent++;
	bfa_lps_fdisclogo(vport->lps);
}

/**
 *     This routine will be called by bfa_timer on timer timeouts.
 *
 * 	param[in] 	vport 		- pointer to bfa_fcs_vport_t.
 * 	param[out]	vport_status 	- pointer to return vport status in
 *
 * 	return
 * 		void
 *
* 	Special Considerations:
 *
 * 	note
 */
static void
bfa_fcs_vport_timeout(void *vport_arg)
{
	struct bfa_fcs_vport_s *vport = (struct bfa_fcs_vport_s *)vport_arg;

	vport->vport_stats.fdisc_timeouts++;
	bfa_sm_send_event(vport, BFA_FCS_VPORT_SM_TIMEOUT);
}

static void
bfa_fcs_vport_free(struct bfa_fcs_vport_s *vport)
{
	bfa_fcs_fabric_delvport(__vport_fabric(vport), vport);
	bfa_fcb_vport_delete(vport->vport_drv);
	bfa_lps_delete(vport->lps);
}



/**
 *  fcs_vport_public FCS virtual port public interfaces
 */

/**
 * Online notification from fabric SM.
 */
void
bfa_fcs_vport_online(struct bfa_fcs_vport_s *vport)
{
	vport->vport_stats.fab_online++;
	bfa_sm_send_event(vport, BFA_FCS_VPORT_SM_ONLINE);
}

/**
 * Offline notification from fabric SM.
 */
void
bfa_fcs_vport_offline(struct bfa_fcs_vport_s *vport)
{
	vport->vport_stats.fab_offline++;
	bfa_sm_send_event(vport, BFA_FCS_VPORT_SM_OFFLINE);
}

/**
 * Cleanup notification from fabric SM on link timer expiry.
 */
void
bfa_fcs_vport_cleanup(struct bfa_fcs_vport_s *vport)
{
	vport->vport_stats.fab_cleanup++;
}

/**
 * Delete completion callback from associated lport
 */
void
bfa_fcs_vport_delete_comp(struct bfa_fcs_vport_s *vport)
{
	bfa_sm_send_event(vport, BFA_FCS_VPORT_SM_DELCOMP);
}

/**
 *  fcs_vport_api Virtual port API
 */

/**
 *  	Use this function to instantiate a new FCS vport object. This
 * 	function will not trigger any HW initialization process (which will be
 * 	done in vport_start() call)
 *
 * 	param[in] vport	- 	pointer to bfa_fcs_vport_t. This space
 * 					needs to be allocated by the driver.
 * 	param[in] fcs 		- 	FCS instance
 * 	param[in] vport_cfg	- 	vport configuration
 * 	param[in] vf_id    	- 	VF_ID if vport is created within a VF.
 *                          		FC_VF_ID_NULL to specify base fabric.
 * 	param[in] vport_drv 	- 	Opaque handle back to the driver's vport
 * 					structure
 *
 * 	retval BFA_STATUS_OK - on success.
 * 	retval BFA_STATUS_FAILED - on failure.
 */
bfa_status_t
bfa_fcs_vport_create(struct bfa_fcs_vport_s *vport, struct bfa_fcs_s *fcs,
		     u16 vf_id, struct bfa_port_cfg_s *vport_cfg,
		     struct bfad_vport_s *vport_drv)
{
	if (vport_cfg->pwwn == 0)
		return BFA_STATUS_INVALID_WWN;

	if (bfa_fcs_port_get_pwwn(&fcs->fabric.bport) == vport_cfg->pwwn)
		return BFA_STATUS_VPORT_WWN_BP;

	if (bfa_fcs_vport_lookup(fcs, vf_id, vport_cfg->pwwn) != NULL)
		return BFA_STATUS_VPORT_EXISTS;

	if (bfa_fcs_fabric_vport_count(&fcs->fabric) ==
		bfa_lps_get_max_vport(fcs->bfa))
		return BFA_STATUS_VPORT_MAX;

	vport->lps = bfa_lps_alloc(fcs->bfa);
	if (!vport->lps)
		return BFA_STATUS_VPORT_MAX;

	vport->vport_drv = vport_drv;
	bfa_sm_set_state(vport, bfa_fcs_vport_sm_uninit);

	bfa_fcs_lport_attach(&vport->lport, fcs, vf_id, vport);
	bfa_fcs_lport_init(&vport->lport, vport_cfg);

	bfa_sm_send_event(vport, BFA_FCS_VPORT_SM_CREATE);

	return BFA_STATUS_OK;
}

/**
 *  	Use this function initialize the vport.
 *
 *  @param[in] vport - pointer to bfa_fcs_vport_t.
 *
 *  @returns None
 */
bfa_status_t
bfa_fcs_vport_start(struct bfa_fcs_vport_s *vport)
{
	bfa_sm_send_event(vport, BFA_FCS_VPORT_SM_START);

	return BFA_STATUS_OK;
}

/**
 *  	Use this function quiese the vport object. This function will return
 * 	immediately, when the vport is actually stopped, the
 * 	bfa_drv_vport_stop_cb() will be called.
 *
 * 	param[in] vport - pointer to bfa_fcs_vport_t.
 *
 * 	return None
 */
bfa_status_t
bfa_fcs_vport_stop(struct bfa_fcs_vport_s *vport)
{
	bfa_sm_send_event(vport, BFA_FCS_VPORT_SM_STOP);

	return BFA_STATUS_OK;
}

/**
 *  	Use this function to delete a vport object. Fabric object should
 * 		be stopped before this function call.
 *
 * 	param[in] vport - pointer to bfa_fcs_vport_t.
 *
 * 	return     None
 */
bfa_status_t
bfa_fcs_vport_delete(struct bfa_fcs_vport_s *vport)
{
	bfa_sm_send_event(vport, BFA_FCS_VPORT_SM_DELETE);

	return BFA_STATUS_OK;
}

/**
 *  	Use this function to get vport's current status info.
 *
 * 	param[in] 	vport 		pointer to bfa_fcs_vport_t.
 * 	param[out]	attr 		pointer to return vport attributes
 *
 * 	return None
 */
void
bfa_fcs_vport_get_attr(struct bfa_fcs_vport_s *vport,
		       struct bfa_vport_attr_s *attr)
{
	if (vport == NULL || attr == NULL)
		return;

	bfa_os_memset(attr, 0, sizeof(struct bfa_vport_attr_s));

	bfa_fcs_port_get_attr(&vport->lport, &attr->port_attr);
	attr->vport_state = bfa_sm_to_state(vport_sm_table, vport->sm);
}

/**
 *  	Use this function to get vport's statistics.
 *
 * 	param[in] 	vport 		pointer to bfa_fcs_vport_t.
 * 	param[out]	stats		pointer to return vport statistics in
 *
 * 	return None
 */
void
bfa_fcs_vport_get_stats(struct bfa_fcs_vport_s *vport,
			struct bfa_vport_stats_s *stats)
{
	*stats = vport->vport_stats;
}

/**
 *  	Use this function to clear vport's statistics.
 *
 * 	param[in] 	vport 		pointer to bfa_fcs_vport_t.
 *
 * 	return None
 */
void
bfa_fcs_vport_clr_stats(struct bfa_fcs_vport_s *vport)
{
	bfa_os_memset(&vport->vport_stats, 0, sizeof(struct bfa_vport_stats_s));
}

/**
 *      Lookup a virtual port. Excludes base port from lookup.
 */
struct bfa_fcs_vport_s *
bfa_fcs_vport_lookup(struct bfa_fcs_s *fcs, u16 vf_id, wwn_t vpwwn)
{
	struct bfa_fcs_vport_s *vport;
	struct bfa_fcs_fabric_s *fabric;

	bfa_trc(fcs, vf_id);
	bfa_trc(fcs, vpwwn);

	fabric = bfa_fcs_vf_lookup(fcs, vf_id);
	if (!fabric) {
		bfa_trc(fcs, vf_id);
		return NULL;
	}

	vport = bfa_fcs_fabric_vport_lookup(fabric, vpwwn);
	return vport;
}

/**
 * FDISC Response
 */
void
bfa_cb_lps_fdisc_comp(void *bfad, void *uarg, bfa_status_t status)
{
	struct bfa_fcs_vport_s *vport = uarg;

	bfa_trc(__vport_fcs(vport), __vport_pwwn(vport));
	bfa_trc(__vport_fcs(vport), status);

	switch (status) {
	case BFA_STATUS_OK:
		/*
		 * Initialiaze the V-Port fields
		 */
		__vport_fcid(vport) = bfa_lps_get_pid(vport->lps);
		vport->vport_stats.fdisc_accepts++;
		bfa_sm_send_event(vport, BFA_FCS_VPORT_SM_RSP_OK);
		break;

	case BFA_STATUS_INVALID_MAC:
		/*
		 * Only for CNA
		 */
		vport->vport_stats.fdisc_acc_bad++;
		bfa_sm_send_event(vport, BFA_FCS_VPORT_SM_RSP_ERROR);

		break;

	case BFA_STATUS_EPROTOCOL:
		switch (bfa_lps_get_extstatus(vport->lps)) {
		case BFA_EPROTO_BAD_ACCEPT:
			vport->vport_stats.fdisc_acc_bad++;
			break;

		case BFA_EPROTO_UNKNOWN_RSP:
			vport->vport_stats.fdisc_unknown_rsp++;
			break;

		default:
			break;
		}

		bfa_sm_send_event(vport, BFA_FCS_VPORT_SM_RSP_ERROR);
		break;

	case BFA_STATUS_FABRIC_RJT:
		vport->vport_stats.fdisc_rejects++;
		bfa_fcs_vport_fdisc_rejected(vport);
		break;

	default:
		vport->vport_stats.fdisc_rsp_err++;
		bfa_sm_send_event(vport, BFA_FCS_VPORT_SM_RSP_ERROR);
	}
}

/**
 * LOGO response
 */
void
bfa_cb_lps_fdisclogo_comp(void *bfad, void *uarg)
{
	struct bfa_fcs_vport_s *vport = uarg;
	bfa_sm_send_event(vport, BFA_FCS_VPORT_SM_RSP_OK);
}

/**
 * Received clear virtual link
 */
void
bfa_cb_lps_cvl_event(void *bfad, void *uarg)
{
	struct bfa_fcs_vport_s *vport = uarg;

	/* Send an Offline followed by an ONLINE */
	bfa_sm_send_event(vport, BFA_FCS_VPORT_SM_OFFLINE);
	bfa_sm_send_event(vport, BFA_FCS_VPORT_SM_ONLINE);
}