aboutsummaryrefslogtreecommitdiff
path: root/drivers/scsi/bfa/bfa_fcbuild.c
blob: 9c725314b513f203fc3d4cfbe667f6850568564c (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
858
859
860
861
862
863
864
865
866
867
868
869
870
871
872
873
874
875
876
877
878
879
880
881
882
883
884
885
886
887
888
889
890
891
892
893
894
895
896
897
898
899
900
901
902
903
904
905
906
907
908
909
910
911
912
913
914
915
916
917
918
919
920
921
922
923
924
925
926
927
928
929
930
931
932
933
934
935
936
937
938
939
940
941
942
943
944
945
946
947
948
949
950
951
952
953
954
955
956
957
958
959
960
961
962
963
964
965
966
967
968
969
970
971
972
973
974
975
976
977
978
979
980
981
982
983
984
985
986
987
988
989
990
991
992
993
994
995
996
997
998
999
1000
1001
1002
1003
1004
1005
1006
1007
1008
1009
1010
1011
1012
1013
1014
1015
1016
1017
1018
1019
1020
1021
1022
1023
1024
1025
1026
1027
1028
1029
1030
1031
1032
1033
1034
1035
1036
1037
1038
1039
1040
1041
1042
1043
1044
1045
1046
1047
1048
1049
1050
1051
1052
1053
1054
1055
1056
1057
1058
1059
1060
1061
1062
1063
1064
1065
1066
1067
1068
1069
1070
1071
1072
1073
1074
1075
1076
1077
1078
1079
1080
1081
1082
1083
1084
1085
1086
1087
1088
1089
1090
1091
1092
1093
1094
1095
1096
1097
1098
1099
1100
1101
1102
1103
1104
1105
1106
1107
1108
1109
1110
1111
1112
1113
1114
1115
1116
1117
1118
1119
1120
1121
1122
1123
1124
1125
1126
1127
1128
1129
1130
1131
1132
1133
1134
1135
1136
1137
1138
1139
1140
1141
1142
1143
1144
1145
1146
1147
1148
1149
1150
1151
1152
1153
1154
1155
1156
1157
1158
1159
1160
1161
1162
1163
1164
1165
1166
1167
1168
1169
1170
1171
1172
1173
1174
1175
1176
1177
1178
1179
1180
1181
1182
1183
1184
1185
1186
1187
1188
1189
1190
1191
1192
1193
1194
1195
1196
1197
1198
1199
1200
1201
1202
1203
1204
1205
1206
1207
1208
1209
1210
1211
1212
1213
1214
1215
1216
1217
1218
1219
1220
1221
1222
1223
1224
1225
1226
1227
1228
1229
1230
1231
1232
1233
1234
1235
1236
1237
1238
1239
1240
1241
1242
1243
1244
1245
1246
1247
1248
1249
1250
1251
1252
1253
1254
1255
1256
1257
1258
1259
1260
1261
1262
1263
1264
1265
1266
1267
1268
1269
1270
1271
1272
1273
1274
1275
1276
1277
1278
1279
1280
1281
1282
1283
1284
1285
1286
1287
1288
1289
1290
1291
1292
1293
1294
1295
1296
1297
1298
1299
1300
1301
1302
1303
1304
1305
1306
1307
1308
1309
1310
1311
1312
1313
1314
1315
1316
1317
1318
1319
1320
1321
1322
1323
1324
1325
1326
1327
1328
1329
1330
1331
1332
1333
1334
1335
1336
1337
1338
1339
1340
1341
1342
1343
1344
1345
1346
1347
1348
1349
1350
1351
1352
1353
1354
1355
1356
1357
1358
1359
1360
1361
1362
1363
1364
1365
1366
1367
1368
1369
1370
1371
1372
1373
1374
1375
1376
1377
1378
1379
1380
1381
1382
1383
1384
1385
1386
1387
1388
1389
1390
1391
1392
1393
1394
1395
1396
1397
1398
1399
1400
1401
1402
1403
1404
1405
1406
1407
1408
1409
1410
/*
 * Copyright (c) 2005-2010 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.
 */
/*
 * fcbuild.c - FC link service frame building and parsing routines
 */

#include "bfa_os_inc.h"
#include "bfa_fcbuild.h"

/*
 * static build functions
 */
static void     fc_els_rsp_build(struct fchs_s *fchs, u32 d_id, u32 s_id,
				 u16 ox_id);
static void     fc_bls_rsp_build(struct fchs_s *fchs, u32 d_id, u32 s_id,
				 u16 ox_id);
static struct fchs_s fc_els_req_tmpl;
static struct fchs_s fc_els_rsp_tmpl;
static struct fchs_s fc_bls_req_tmpl;
static struct fchs_s fc_bls_rsp_tmpl;
static struct fc_ba_acc_s ba_acc_tmpl;
static struct fc_logi_s plogi_tmpl;
static struct fc_prli_s prli_tmpl;
static struct fc_rrq_s rrq_tmpl;
static struct fchs_s fcp_fchs_tmpl;

void
fcbuild_init(void)
{
	/*
	 * fc_els_req_tmpl
	 */
	fc_els_req_tmpl.routing = FC_RTG_EXT_LINK;
	fc_els_req_tmpl.cat_info = FC_CAT_LD_REQUEST;
	fc_els_req_tmpl.type = FC_TYPE_ELS;
	fc_els_req_tmpl.f_ctl =
		bfa_os_hton3b(FCTL_SEQ_INI | FCTL_FS_EXCH | FCTL_END_SEQ |
			      FCTL_SI_XFER);
	fc_els_req_tmpl.rx_id = FC_RXID_ANY;

	/*
	 * fc_els_rsp_tmpl
	 */
	fc_els_rsp_tmpl.routing = FC_RTG_EXT_LINK;
	fc_els_rsp_tmpl.cat_info = FC_CAT_LD_REPLY;
	fc_els_rsp_tmpl.type = FC_TYPE_ELS;
	fc_els_rsp_tmpl.f_ctl =
		bfa_os_hton3b(FCTL_EC_RESP | FCTL_SEQ_INI | FCTL_LS_EXCH |
			      FCTL_END_SEQ | FCTL_SI_XFER);
	fc_els_rsp_tmpl.rx_id = FC_RXID_ANY;

	/*
	 * fc_bls_req_tmpl
	 */
	fc_bls_req_tmpl.routing = FC_RTG_BASIC_LINK;
	fc_bls_req_tmpl.type = FC_TYPE_BLS;
	fc_bls_req_tmpl.f_ctl = bfa_os_hton3b(FCTL_END_SEQ | FCTL_SI_XFER);
	fc_bls_req_tmpl.rx_id = FC_RXID_ANY;

	/*
	 * fc_bls_rsp_tmpl
	 */
	fc_bls_rsp_tmpl.routing = FC_RTG_BASIC_LINK;
	fc_bls_rsp_tmpl.cat_info = FC_CAT_BA_ACC;
	fc_bls_rsp_tmpl.type = FC_TYPE_BLS;
	fc_bls_rsp_tmpl.f_ctl =
		bfa_os_hton3b(FCTL_EC_RESP | FCTL_SEQ_INI | FCTL_LS_EXCH |
			      FCTL_END_SEQ | FCTL_SI_XFER);
	fc_bls_rsp_tmpl.rx_id = FC_RXID_ANY;

	/*
	 * ba_acc_tmpl
	 */
	ba_acc_tmpl.seq_id_valid = 0;
	ba_acc_tmpl.low_seq_cnt = 0;
	ba_acc_tmpl.high_seq_cnt = 0xFFFF;

	/*
	 * plogi_tmpl
	 */
	plogi_tmpl.csp.verhi = FC_PH_VER_PH_3;
	plogi_tmpl.csp.verlo = FC_PH_VER_4_3;
	plogi_tmpl.csp.bbcred = cpu_to_be16(0x0004);
	plogi_tmpl.csp.ciro = 0x1;
	plogi_tmpl.csp.cisc = 0x0;
	plogi_tmpl.csp.altbbcred = 0x0;
	plogi_tmpl.csp.conseq = cpu_to_be16(0x00FF);
	plogi_tmpl.csp.ro_bitmap = cpu_to_be16(0x0002);
	plogi_tmpl.csp.e_d_tov = cpu_to_be32(2000);

	plogi_tmpl.class3.class_valid = 1;
	plogi_tmpl.class3.sequential = 1;
	plogi_tmpl.class3.conseq = 0xFF;
	plogi_tmpl.class3.ospx = 1;

	/*
	 * prli_tmpl
	 */
	prli_tmpl.command = FC_ELS_PRLI;
	prli_tmpl.pglen = 0x10;
	prli_tmpl.pagebytes = cpu_to_be16(0x0014);
	prli_tmpl.parampage.type = FC_TYPE_FCP;
	prli_tmpl.parampage.imagepair = 1;
	prli_tmpl.parampage.servparams.rxrdisab = 1;

	/*
	 * rrq_tmpl
	 */
	rrq_tmpl.els_cmd.els_code = FC_ELS_RRQ;

	/*
	 * fcp_struct fchs_s mpl
	 */
	fcp_fchs_tmpl.routing = FC_RTG_FC4_DEV_DATA;
	fcp_fchs_tmpl.cat_info = FC_CAT_UNSOLICIT_CMD;
	fcp_fchs_tmpl.type = FC_TYPE_FCP;
	fcp_fchs_tmpl.f_ctl =
		bfa_os_hton3b(FCTL_FS_EXCH | FCTL_END_SEQ | FCTL_SI_XFER);
	fcp_fchs_tmpl.seq_id = 1;
	fcp_fchs_tmpl.rx_id = FC_RXID_ANY;
}

static void
fc_gs_fchdr_build(struct fchs_s *fchs, u32 d_id, u32 s_id, u32 ox_id)
{
	memset(fchs, 0, sizeof(struct fchs_s));

	fchs->routing = FC_RTG_FC4_DEV_DATA;
	fchs->cat_info = FC_CAT_UNSOLICIT_CTRL;
	fchs->type = FC_TYPE_SERVICES;
	fchs->f_ctl =
		bfa_os_hton3b(FCTL_SEQ_INI | FCTL_FS_EXCH | FCTL_END_SEQ |
			      FCTL_SI_XFER);
	fchs->rx_id = FC_RXID_ANY;
	fchs->d_id = (d_id);
	fchs->s_id = (s_id);
	fchs->ox_id = cpu_to_be16(ox_id);

	/*
	 * @todo no need to set ox_id for request
	 *       no need to set rx_id for response
	 */
}

void
fc_els_req_build(struct fchs_s *fchs, u32 d_id, u32 s_id, u16 ox_id)
{
	memcpy(fchs, &fc_els_req_tmpl, sizeof(struct fchs_s));
	fchs->d_id = (d_id);
	fchs->s_id = (s_id);
	fchs->ox_id = cpu_to_be16(ox_id);
}

static void
fc_els_rsp_build(struct fchs_s *fchs, u32 d_id, u32 s_id, u16 ox_id)
{
	memcpy(fchs, &fc_els_rsp_tmpl, sizeof(struct fchs_s));
	fchs->d_id = d_id;
	fchs->s_id = s_id;
	fchs->ox_id = ox_id;
}

enum fc_parse_status
fc_els_rsp_parse(struct fchs_s *fchs, int len)
{
	struct fc_els_cmd_s *els_cmd = (struct fc_els_cmd_s *) (fchs + 1);
	struct fc_ls_rjt_s *ls_rjt = (struct fc_ls_rjt_s *) els_cmd;

	len = len;

	switch (els_cmd->els_code) {
	case FC_ELS_LS_RJT:
		if (ls_rjt->reason_code == FC_LS_RJT_RSN_LOGICAL_BUSY)
			return FC_PARSE_BUSY;
		else
			return FC_PARSE_FAILURE;

	case FC_ELS_ACC:
		return FC_PARSE_OK;
	}
	return FC_PARSE_OK;
}

static void
fc_bls_rsp_build(struct fchs_s *fchs, u32 d_id, u32 s_id, u16 ox_id)
{
	memcpy(fchs, &fc_bls_rsp_tmpl, sizeof(struct fchs_s));
	fchs->d_id = d_id;
	fchs->s_id = s_id;
	fchs->ox_id = ox_id;
}

static          u16
fc_plogi_x_build(struct fchs_s *fchs, void *pld, u32 d_id, u32 s_id,
		 u16 ox_id, wwn_t port_name, wwn_t node_name,
		 u16 pdu_size, u8 els_code)
{
	struct fc_logi_s *plogi = (struct fc_logi_s *) (pld);

	memcpy(plogi, &plogi_tmpl, sizeof(struct fc_logi_s));

	plogi->els_cmd.els_code = els_code;
	if (els_code == FC_ELS_PLOGI)
		fc_els_req_build(fchs, d_id, s_id, ox_id);
	else
		fc_els_rsp_build(fchs, d_id, s_id, ox_id);

	plogi->csp.rxsz = plogi->class3.rxsz = cpu_to_be16(pdu_size);

	memcpy(&plogi->port_name, &port_name, sizeof(wwn_t));
	memcpy(&plogi->node_name, &node_name, sizeof(wwn_t));

	return sizeof(struct fc_logi_s);
}

u16
fc_flogi_build(struct fchs_s *fchs, struct fc_logi_s *flogi, u32 s_id,
		u16 ox_id, wwn_t port_name, wwn_t node_name, u16 pdu_size,
	       u8 set_npiv, u8 set_auth, u16 local_bb_credits)
{
	u32        d_id = bfa_os_hton3b(FC_FABRIC_PORT);
	u32	*vvl_info;

	memcpy(flogi, &plogi_tmpl, sizeof(struct fc_logi_s));

	flogi->els_cmd.els_code = FC_ELS_FLOGI;
	fc_els_req_build(fchs, d_id, s_id, ox_id);

	flogi->csp.rxsz = flogi->class3.rxsz = cpu_to_be16(pdu_size);
	flogi->port_name = port_name;
	flogi->node_name = node_name;

	/*
	 * Set the NPIV Capability Bit ( word 1, bit 31) of Common
	 * Service Parameters.
	 */
	flogi->csp.ciro = set_npiv;

	/* set AUTH capability */
	flogi->csp.security = set_auth;

	flogi->csp.bbcred = cpu_to_be16(local_bb_credits);

	/* Set brcd token in VVL */
	vvl_info = (u32 *)&flogi->vvl[0];

	/* set the flag to indicate the presence of VVL */
	flogi->csp.npiv_supp    = 1; /* @todo. field name is not correct */
	vvl_info[0]	= cpu_to_be32(FLOGI_VVL_BRCD);

	return sizeof(struct fc_logi_s);
}

u16
fc_flogi_acc_build(struct fchs_s *fchs, struct fc_logi_s *flogi, u32 s_id,
		   u16 ox_id, wwn_t port_name, wwn_t node_name,
		   u16 pdu_size, u16 local_bb_credits)
{
	u32        d_id = 0;

	memcpy(flogi, &plogi_tmpl, sizeof(struct fc_logi_s));
	fc_els_rsp_build(fchs, d_id, s_id, ox_id);

	flogi->els_cmd.els_code = FC_ELS_ACC;
	flogi->csp.rxsz = flogi->class3.rxsz = cpu_to_be16(pdu_size);
	flogi->port_name = port_name;
	flogi->node_name = node_name;

	flogi->csp.bbcred = cpu_to_be16(local_bb_credits);

	return sizeof(struct fc_logi_s);
}

u16
fc_fdisc_build(struct fchs_s *fchs, struct fc_logi_s *flogi, u32 s_id,
		u16 ox_id, wwn_t port_name, wwn_t node_name, u16 pdu_size)
{
	u32        d_id = bfa_os_hton3b(FC_FABRIC_PORT);

	memcpy(flogi, &plogi_tmpl, sizeof(struct fc_logi_s));

	flogi->els_cmd.els_code = FC_ELS_FDISC;
	fc_els_req_build(fchs, d_id, s_id, ox_id);

	flogi->csp.rxsz = flogi->class3.rxsz = cpu_to_be16(pdu_size);
	flogi->port_name = port_name;
	flogi->node_name = node_name;

	return sizeof(struct fc_logi_s);
}

u16
fc_plogi_build(struct fchs_s *fchs, void *pld, u32 d_id, u32 s_id,
	       u16 ox_id, wwn_t port_name, wwn_t node_name,
	       u16 pdu_size)
{
	return fc_plogi_x_build(fchs, pld, d_id, s_id, ox_id, port_name,
				node_name, pdu_size, FC_ELS_PLOGI);
}

u16
fc_plogi_acc_build(struct fchs_s *fchs, void *pld, u32 d_id, u32 s_id,
		   u16 ox_id, wwn_t port_name, wwn_t node_name,
		   u16 pdu_size)
{
	return fc_plogi_x_build(fchs, pld, d_id, s_id, ox_id, port_name,
				node_name, pdu_size, FC_ELS_ACC);
}

enum fc_parse_status
fc_plogi_rsp_parse(struct fchs_s *fchs, int len, wwn_t port_name)
{
	struct fc_els_cmd_s *els_cmd = (struct fc_els_cmd_s *) (fchs + 1);
	struct fc_logi_s *plogi;
	struct fc_ls_rjt_s *ls_rjt;

	switch (els_cmd->els_code) {
	case FC_ELS_LS_RJT:
		ls_rjt = (struct fc_ls_rjt_s *) (fchs + 1);
		if (ls_rjt->reason_code == FC_LS_RJT_RSN_LOGICAL_BUSY)
			return FC_PARSE_BUSY;
		else
			return FC_PARSE_FAILURE;
	case FC_ELS_ACC:
		plogi = (struct fc_logi_s *) (fchs + 1);
		if (len < sizeof(struct fc_logi_s))
			return FC_PARSE_FAILURE;

		if (!wwn_is_equal(plogi->port_name, port_name))
			return FC_PARSE_FAILURE;

		if (!plogi->class3.class_valid)
			return FC_PARSE_FAILURE;

		if (be16_to_cpu(plogi->class3.rxsz) < (FC_MIN_PDUSZ))
			return FC_PARSE_FAILURE;

		return FC_PARSE_OK;
	default:
		return FC_PARSE_FAILURE;
	}
}

enum fc_parse_status
fc_plogi_parse(struct fchs_s *fchs)
{
	struct fc_logi_s *plogi = (struct fc_logi_s *) (fchs + 1);

	if (plogi->class3.class_valid != 1)
		return FC_PARSE_FAILURE;

	if ((be16_to_cpu(plogi->class3.rxsz) < FC_MIN_PDUSZ)
	    || (be16_to_cpu(plogi->class3.rxsz) > FC_MAX_PDUSZ)
	    || (plogi->class3.rxsz == 0))
		return FC_PARSE_FAILURE;

	return FC_PARSE_OK;
}

u16
fc_prli_build(struct fchs_s *fchs, void *pld, u32 d_id, u32 s_id,
	      u16 ox_id)
{
	struct fc_prli_s *prli = (struct fc_prli_s *) (pld);

	fc_els_req_build(fchs, d_id, s_id, ox_id);
	memcpy(prli, &prli_tmpl, sizeof(struct fc_prli_s));

	prli->command = FC_ELS_PRLI;
	prli->parampage.servparams.initiator     = 1;
	prli->parampage.servparams.retry         = 1;
	prli->parampage.servparams.rec_support   = 1;
	prli->parampage.servparams.task_retry_id = 0;
	prli->parampage.servparams.confirm       = 1;

	return sizeof(struct fc_prli_s);
}

u16
fc_prli_acc_build(struct fchs_s *fchs, void *pld, u32 d_id, u32 s_id,
		  u16 ox_id, enum bfa_lport_role role)
{
	struct fc_prli_s *prli = (struct fc_prli_s *) (pld);

	fc_els_rsp_build(fchs, d_id, s_id, ox_id);
	memcpy(prli, &prli_tmpl, sizeof(struct fc_prli_s));

	prli->command = FC_ELS_ACC;

	prli->parampage.servparams.initiator = 1;

	prli->parampage.rspcode = FC_PRLI_ACC_XQTD;

	return sizeof(struct fc_prli_s);
}

enum fc_parse_status
fc_prli_rsp_parse(struct fc_prli_s *prli, int len)
{
	if (len < sizeof(struct fc_prli_s))
		return FC_PARSE_FAILURE;

	if (prli->command != FC_ELS_ACC)
		return FC_PARSE_FAILURE;

	if ((prli->parampage.rspcode != FC_PRLI_ACC_XQTD)
	    && (prli->parampage.rspcode != FC_PRLI_ACC_PREDEF_IMG))
		return FC_PARSE_FAILURE;

	if (prli->parampage.servparams.target != 1)
		return FC_PARSE_FAILURE;

	return FC_PARSE_OK;
}

enum fc_parse_status
fc_prli_parse(struct fc_prli_s *prli)
{
	if (prli->parampage.type != FC_TYPE_FCP)
		return FC_PARSE_FAILURE;

	if (!prli->parampage.imagepair)
		return FC_PARSE_FAILURE;

	if (!prli->parampage.servparams.initiator)
		return FC_PARSE_FAILURE;

	return FC_PARSE_OK;
}

u16
fc_logo_build(struct fchs_s *fchs, struct fc_logo_s *logo, u32 d_id, u32 s_id,
	      u16 ox_id, wwn_t port_name)
{
	fc_els_req_build(fchs, d_id, s_id, ox_id);

	memset(logo, '\0', sizeof(struct fc_logo_s));
	logo->els_cmd.els_code = FC_ELS_LOGO;
	logo->nport_id = (s_id);
	logo->orig_port_name = port_name;

	return sizeof(struct fc_logo_s);
}

static          u16
fc_adisc_x_build(struct fchs_s *fchs, struct fc_adisc_s *adisc, u32 d_id,
		 u32 s_id, u16 ox_id, wwn_t port_name,
		 wwn_t node_name, u8 els_code)
{
	memset(adisc, '\0', sizeof(struct fc_adisc_s));

	adisc->els_cmd.els_code = els_code;

	if (els_code == FC_ELS_ADISC)
		fc_els_req_build(fchs, d_id, s_id, ox_id);
	else
		fc_els_rsp_build(fchs, d_id, s_id, ox_id);

	adisc->orig_HA = 0;
	adisc->orig_port_name = port_name;
	adisc->orig_node_name = node_name;
	adisc->nport_id = (s_id);

	return sizeof(struct fc_adisc_s);
}

u16
fc_adisc_build(struct fchs_s *fchs, struct fc_adisc_s *adisc, u32 d_id,
		u32 s_id, u16 ox_id, wwn_t port_name, wwn_t node_name)
{
	return fc_adisc_x_build(fchs, adisc, d_id, s_id, ox_id, port_name,
				node_name, FC_ELS_ADISC);
}

u16
fc_adisc_acc_build(struct fchs_s *fchs, struct fc_adisc_s *adisc, u32 d_id,
		   u32 s_id, u16 ox_id, wwn_t port_name,
		   wwn_t node_name)
{
	return fc_adisc_x_build(fchs, adisc, d_id, s_id, ox_id, port_name,
				node_name, FC_ELS_ACC);
}

enum fc_parse_status
fc_adisc_rsp_parse(struct fc_adisc_s *adisc, int len, wwn_t port_name,
				 wwn_t node_name)
{

	if (len < sizeof(struct fc_adisc_s))
		return FC_PARSE_FAILURE;

	if (adisc->els_cmd.els_code != FC_ELS_ACC)
		return FC_PARSE_FAILURE;

	if (!wwn_is_equal(adisc->orig_port_name, port_name))
		return FC_PARSE_FAILURE;

	return FC_PARSE_OK;
}

enum fc_parse_status
fc_adisc_parse(struct fchs_s *fchs, void *pld, u32 host_dap, wwn_t node_name,
	       wwn_t port_name)
{
	struct fc_adisc_s *adisc = (struct fc_adisc_s *) pld;

	if (adisc->els_cmd.els_code != FC_ELS_ACC)
		return FC_PARSE_FAILURE;

	if ((adisc->nport_id == (host_dap))
	    && wwn_is_equal(adisc->orig_port_name, port_name)
	    && wwn_is_equal(adisc->orig_node_name, node_name))
		return FC_PARSE_OK;

	return FC_PARSE_FAILURE;
}

enum fc_parse_status
fc_pdisc_parse(struct fchs_s *fchs, wwn_t node_name, wwn_t port_name)
{
	struct fc_logi_s *pdisc = (struct fc_logi_s *) (fchs + 1);

	if (pdisc->class3.class_valid != 1)
		return FC_PARSE_FAILURE;

	if ((be16_to_cpu(pdisc->class3.rxsz) <
		(FC_MIN_PDUSZ - sizeof(struct fchs_s)))
	    || (pdisc->class3.rxsz == 0))
		return FC_PARSE_FAILURE;

	if (!wwn_is_equal(pdisc->port_name, port_name))
		return FC_PARSE_FAILURE;

	if (!wwn_is_equal(pdisc->node_name, node_name))
		return FC_PARSE_FAILURE;

	return FC_PARSE_OK;
}

u16
fc_abts_build(struct fchs_s *fchs, u32 d_id, u32 s_id, u16 ox_id)
{
	memcpy(fchs, &fc_bls_req_tmpl, sizeof(struct fchs_s));
	fchs->cat_info = FC_CAT_ABTS;
	fchs->d_id = (d_id);
	fchs->s_id = (s_id);
	fchs->ox_id = cpu_to_be16(ox_id);

	return sizeof(struct fchs_s);
}

enum fc_parse_status
fc_abts_rsp_parse(struct fchs_s *fchs, int len)
{
	if ((fchs->cat_info == FC_CAT_BA_ACC)
	    || (fchs->cat_info == FC_CAT_BA_RJT))
		return FC_PARSE_OK;

	return FC_PARSE_FAILURE;
}

u16
fc_rrq_build(struct fchs_s *fchs, struct fc_rrq_s *rrq, u32 d_id, u32 s_id,
	     u16 ox_id, u16 rrq_oxid)
{
	fc_els_req_build(fchs, d_id, s_id, ox_id);

	/*
	 * build rrq payload
	 */
	memcpy(rrq, &rrq_tmpl, sizeof(struct fc_rrq_s));
	rrq->s_id = (s_id);
	rrq->ox_id = cpu_to_be16(rrq_oxid);
	rrq->rx_id = FC_RXID_ANY;

	return sizeof(struct fc_rrq_s);
}

u16
fc_logo_acc_build(struct fchs_s *fchs, void *pld, u32 d_id, u32 s_id,
		  u16 ox_id)
{
	struct fc_els_cmd_s *acc = pld;

	fc_els_rsp_build(fchs, d_id, s_id, ox_id);

	memset(acc, 0, sizeof(struct fc_els_cmd_s));
	acc->els_code = FC_ELS_ACC;

	return sizeof(struct fc_els_cmd_s);
}

u16
fc_ls_rjt_build(struct fchs_s *fchs, struct fc_ls_rjt_s *ls_rjt, u32 d_id,
		u32 s_id, u16 ox_id, u8 reason_code,
		u8 reason_code_expl)
{
	fc_els_rsp_build(fchs, d_id, s_id, ox_id);
	memset(ls_rjt, 0, sizeof(struct fc_ls_rjt_s));

	ls_rjt->els_cmd.els_code = FC_ELS_LS_RJT;
	ls_rjt->reason_code = reason_code;
	ls_rjt->reason_code_expl = reason_code_expl;
	ls_rjt->vendor_unique = 0x00;

	return sizeof(struct fc_ls_rjt_s);
}

u16
fc_ba_acc_build(struct fchs_s *fchs, struct fc_ba_acc_s *ba_acc, u32 d_id,
		u32 s_id, u16 ox_id, u16 rx_id)
{
	fc_bls_rsp_build(fchs, d_id, s_id, ox_id);

	memcpy(ba_acc, &ba_acc_tmpl, sizeof(struct fc_ba_acc_s));

	fchs->rx_id = rx_id;

	ba_acc->ox_id = fchs->ox_id;
	ba_acc->rx_id = fchs->rx_id;

	return sizeof(struct fc_ba_acc_s);
}

u16
fc_ls_acc_build(struct fchs_s *fchs, struct fc_els_cmd_s *els_cmd, u32 d_id,
		u32 s_id, u16 ox_id)
{
	fc_els_rsp_build(fchs, d_id, s_id, ox_id);
	memset(els_cmd, 0, sizeof(struct fc_els_cmd_s));
	els_cmd->els_code = FC_ELS_ACC;

	return sizeof(struct fc_els_cmd_s);
}

int
fc_logout_params_pages(struct fchs_s *fc_frame, u8 els_code)
{
	int             num_pages = 0;
	struct fc_prlo_s *prlo;
	struct fc_tprlo_s *tprlo;

	if (els_code == FC_ELS_PRLO) {
		prlo = (struct fc_prlo_s *) (fc_frame + 1);
		num_pages = (be16_to_cpu(prlo->payload_len) - 4) / 16;
	} else {
		tprlo = (struct fc_tprlo_s *) (fc_frame + 1);
		num_pages = (be16_to_cpu(tprlo->payload_len) - 4) / 16;
	}
	return num_pages;
}

u16
fc_tprlo_acc_build(struct fchs_s *fchs, struct fc_tprlo_acc_s *tprlo_acc,
		u32 d_id, u32 s_id, u16 ox_id, int num_pages)
{
	int             page;

	fc_els_rsp_build(fchs, d_id, s_id, ox_id);

	memset(tprlo_acc, 0, (num_pages * 16) + 4);
	tprlo_acc->command = FC_ELS_ACC;

	tprlo_acc->page_len = 0x10;
	tprlo_acc->payload_len = cpu_to_be16((num_pages * 16) + 4);

	for (page = 0; page < num_pages; page++) {
		tprlo_acc->tprlo_acc_params[page].opa_valid = 0;
		tprlo_acc->tprlo_acc_params[page].rpa_valid = 0;
		tprlo_acc->tprlo_acc_params[page].fc4type_csp = FC_TYPE_FCP;
		tprlo_acc->tprlo_acc_params[page].orig_process_assc = 0;
		tprlo_acc->tprlo_acc_params[page].resp_process_assc = 0;
	}
	return be16_to_cpu(tprlo_acc->payload_len);
}

u16
fc_prlo_acc_build(struct fchs_s *fchs, struct fc_prlo_acc_s *prlo_acc, u32 d_id,
		  u32 s_id, u16 ox_id, int num_pages)
{
	int             page;

	fc_els_rsp_build(fchs, d_id, s_id, ox_id);

	memset(prlo_acc, 0, (num_pages * 16) + 4);
	prlo_acc->command = FC_ELS_ACC;
	prlo_acc->page_len = 0x10;
	prlo_acc->payload_len = cpu_to_be16((num_pages * 16) + 4);

	for (page = 0; page < num_pages; page++) {
		prlo_acc->prlo_acc_params[page].opa_valid = 0;
		prlo_acc->prlo_acc_params[page].rpa_valid = 0;
		prlo_acc->prlo_acc_params[page].fc4type_csp = FC_TYPE_FCP;
		prlo_acc->prlo_acc_params[page].orig_process_assc = 0;
		prlo_acc->prlo_acc_params[page].resp_process_assc = 0;
	}

	return be16_to_cpu(prlo_acc->payload_len);
}

u16
fc_rnid_build(struct fchs_s *fchs, struct fc_rnid_cmd_s *rnid, u32 d_id,
		u32 s_id, u16 ox_id, u32 data_format)
{
	fc_els_req_build(fchs, d_id, s_id, ox_id);

	memset(rnid, 0, sizeof(struct fc_rnid_cmd_s));

	rnid->els_cmd.els_code = FC_ELS_RNID;
	rnid->node_id_data_format = data_format;

	return sizeof(struct fc_rnid_cmd_s);
}

u16
fc_rnid_acc_build(struct fchs_s *fchs, struct fc_rnid_acc_s *rnid_acc, u32 d_id,
		  u32 s_id, u16 ox_id, u32 data_format,
		  struct fc_rnid_common_id_data_s *common_id_data,
		  struct fc_rnid_general_topology_data_s *gen_topo_data)
{
	memset(rnid_acc, 0, sizeof(struct fc_rnid_acc_s));

	fc_els_rsp_build(fchs, d_id, s_id, ox_id);

	rnid_acc->els_cmd.els_code = FC_ELS_ACC;
	rnid_acc->node_id_data_format = data_format;
	rnid_acc->common_id_data_length =
			sizeof(struct fc_rnid_common_id_data_s);
	rnid_acc->common_id_data = *common_id_data;

	if (data_format == RNID_NODEID_DATA_FORMAT_DISCOVERY) {
		rnid_acc->specific_id_data_length =
			sizeof(struct fc_rnid_general_topology_data_s);
		rnid_acc->gen_topology_data = *gen_topo_data;
		return sizeof(struct fc_rnid_acc_s);
	} else {
		return sizeof(struct fc_rnid_acc_s) -
			sizeof(struct fc_rnid_general_topology_data_s);
	}

}

u16
fc_rpsc_build(struct fchs_s *fchs, struct fc_rpsc_cmd_s *rpsc, u32 d_id,
		u32 s_id, u16 ox_id)
{
	fc_els_req_build(fchs, d_id, s_id, ox_id);

	memset(rpsc, 0, sizeof(struct fc_rpsc_cmd_s));

	rpsc->els_cmd.els_code = FC_ELS_RPSC;
	return sizeof(struct fc_rpsc_cmd_s);
}

u16
fc_rpsc2_build(struct fchs_s *fchs, struct fc_rpsc2_cmd_s *rpsc2, u32 d_id,
		u32 s_id, u32 *pid_list, u16 npids)
{
	u32 dctlr_id = FC_DOMAIN_CTRLR(bfa_os_hton3b(d_id));
	int i = 0;

	fc_els_req_build(fchs, bfa_os_hton3b(dctlr_id), s_id, 0);

	memset(rpsc2, 0, sizeof(struct fc_rpsc2_cmd_s));

	rpsc2->els_cmd.els_code = FC_ELS_RPSC;
	rpsc2->token = cpu_to_be32(FC_BRCD_TOKEN);
	rpsc2->num_pids  = cpu_to_be16(npids);
	for (i = 0; i < npids; i++)
		rpsc2->pid_list[i].pid = pid_list[i];

	return sizeof(struct fc_rpsc2_cmd_s) + ((npids - 1) * (sizeof(u32)));
}

u16
fc_rpsc_acc_build(struct fchs_s *fchs, struct fc_rpsc_acc_s *rpsc_acc,
		u32 d_id, u32 s_id, u16 ox_id,
		  struct fc_rpsc_speed_info_s *oper_speed)
{
	memset(rpsc_acc, 0, sizeof(struct fc_rpsc_acc_s));

	fc_els_rsp_build(fchs, d_id, s_id, ox_id);

	rpsc_acc->command = FC_ELS_ACC;
	rpsc_acc->num_entries = cpu_to_be16(1);

	rpsc_acc->speed_info[0].port_speed_cap =
		cpu_to_be16(oper_speed->port_speed_cap);

	rpsc_acc->speed_info[0].port_op_speed =
		cpu_to_be16(oper_speed->port_op_speed);

	return sizeof(struct fc_rpsc_acc_s);
}

/*
 * TBD -
 * . get rid of unnecessary memsets
 */

u16
fc_logo_rsp_parse(struct fchs_s *fchs, int len)
{
	struct fc_els_cmd_s *els_cmd = (struct fc_els_cmd_s *) (fchs + 1);

	len = len;
	if (els_cmd->els_code != FC_ELS_ACC)
		return FC_PARSE_FAILURE;

	return FC_PARSE_OK;
}

u16
fc_pdisc_build(struct fchs_s *fchs, u32 d_id, u32 s_id, u16 ox_id,
	       wwn_t port_name, wwn_t node_name, u16 pdu_size)
{
	struct fc_logi_s *pdisc = (struct fc_logi_s *) (fchs + 1);

	memcpy(pdisc, &plogi_tmpl, sizeof(struct fc_logi_s));

	pdisc->els_cmd.els_code = FC_ELS_PDISC;
	fc_els_req_build(fchs, d_id, s_id, ox_id);

	pdisc->csp.rxsz = pdisc->class3.rxsz = cpu_to_be16(pdu_size);
	pdisc->port_name = port_name;
	pdisc->node_name = node_name;

	return sizeof(struct fc_logi_s);
}

u16
fc_pdisc_rsp_parse(struct fchs_s *fchs, int len, wwn_t port_name)
{
	struct fc_logi_s *pdisc = (struct fc_logi_s *) (fchs + 1);

	if (len < sizeof(struct fc_logi_s))
		return FC_PARSE_LEN_INVAL;

	if (pdisc->els_cmd.els_code != FC_ELS_ACC)
		return FC_PARSE_ACC_INVAL;

	if (!wwn_is_equal(pdisc->port_name, port_name))
		return FC_PARSE_PWWN_NOT_EQUAL;

	if (!pdisc->class3.class_valid)
		return FC_PARSE_NWWN_NOT_EQUAL;

	if (be16_to_cpu(pdisc->class3.rxsz) < (FC_MIN_PDUSZ))
		return FC_PARSE_RXSZ_INVAL;

	return FC_PARSE_OK;
}

u16
fc_prlo_build(struct fchs_s *fchs, u32 d_id, u32 s_id, u16 ox_id,
	      int num_pages)
{
	struct fc_prlo_s *prlo = (struct fc_prlo_s *) (fchs + 1);
	int             page;

	fc_els_req_build(fchs, d_id, s_id, ox_id);
	memset(prlo, 0, (num_pages * 16) + 4);
	prlo->command = FC_ELS_PRLO;
	prlo->page_len = 0x10;
	prlo->payload_len = cpu_to_be16((num_pages * 16) + 4);

	for (page = 0; page < num_pages; page++) {
		prlo->prlo_params[page].type = FC_TYPE_FCP;
		prlo->prlo_params[page].opa_valid = 0;
		prlo->prlo_params[page].rpa_valid = 0;
		prlo->prlo_params[page].orig_process_assc = 0;
		prlo->prlo_params[page].resp_process_assc = 0;
	}

	return be16_to_cpu(prlo->payload_len);
}

u16
fc_prlo_rsp_parse(struct fchs_s *fchs, int len)
{
	struct fc_prlo_acc_s *prlo = (struct fc_prlo_acc_s *) (fchs + 1);
	int             num_pages = 0;
	int             page = 0;

	len = len;

	if (prlo->command != FC_ELS_ACC)
		return FC_PARSE_FAILURE;

	num_pages = ((be16_to_cpu(prlo->payload_len)) - 4) / 16;

	for (page = 0; page < num_pages; page++) {
		if (prlo->prlo_acc_params[page].type != FC_TYPE_FCP)
			return FC_PARSE_FAILURE;

		if (prlo->prlo_acc_params[page].opa_valid != 0)
			return FC_PARSE_FAILURE;

		if (prlo->prlo_acc_params[page].rpa_valid != 0)
			return FC_PARSE_FAILURE;

		if (prlo->prlo_acc_params[page].orig_process_assc != 0)
			return FC_PARSE_FAILURE;

		if (prlo->prlo_acc_params[page].resp_process_assc != 0)
			return FC_PARSE_FAILURE;
	}
	return FC_PARSE_OK;

}

u16
fc_tprlo_build(struct fchs_s *fchs, u32 d_id, u32 s_id, u16 ox_id,
	       int num_pages, enum fc_tprlo_type tprlo_type, u32 tpr_id)
{
	struct fc_tprlo_s *tprlo = (struct fc_tprlo_s *) (fchs + 1);
	int             page;

	fc_els_req_build(fchs, d_id, s_id, ox_id);
	memset(tprlo, 0, (num_pages * 16) + 4);
	tprlo->command = FC_ELS_TPRLO;
	tprlo->page_len = 0x10;
	tprlo->payload_len = cpu_to_be16((num_pages * 16) + 4);

	for (page = 0; page < num_pages; page++) {
		tprlo->tprlo_params[page].type = FC_TYPE_FCP;
		tprlo->tprlo_params[page].opa_valid = 0;
		tprlo->tprlo_params[page].rpa_valid = 0;
		tprlo->tprlo_params[page].orig_process_assc = 0;
		tprlo->tprlo_params[page].resp_process_assc = 0;
		if (tprlo_type == FC_GLOBAL_LOGO) {
			tprlo->tprlo_params[page].global_process_logout = 1;
		} else if (tprlo_type == FC_TPR_LOGO) {
			tprlo->tprlo_params[page].tpo_nport_valid = 1;
			tprlo->tprlo_params[page].tpo_nport_id = (tpr_id);
		}
	}

	return be16_to_cpu(tprlo->payload_len);
}

u16
fc_tprlo_rsp_parse(struct fchs_s *fchs, int len)
{
	struct fc_tprlo_acc_s *tprlo = (struct fc_tprlo_acc_s *) (fchs + 1);
	int             num_pages = 0;
	int             page = 0;

	len = len;

	if (tprlo->command != FC_ELS_ACC)
		return FC_PARSE_ACC_INVAL;

	num_pages = (be16_to_cpu(tprlo->payload_len) - 4) / 16;

	for (page = 0; page < num_pages; page++) {
		if (tprlo->tprlo_acc_params[page].type != FC_TYPE_FCP)
			return FC_PARSE_NOT_FCP;
		if (tprlo->tprlo_acc_params[page].opa_valid != 0)
			return FC_PARSE_OPAFLAG_INVAL;
		if (tprlo->tprlo_acc_params[page].rpa_valid != 0)
			return FC_PARSE_RPAFLAG_INVAL;
		if (tprlo->tprlo_acc_params[page].orig_process_assc != 0)
			return FC_PARSE_OPA_INVAL;
		if (tprlo->tprlo_acc_params[page].resp_process_assc != 0)
			return FC_PARSE_RPA_INVAL;
	}
	return FC_PARSE_OK;
}

enum fc_parse_status
fc_rrq_rsp_parse(struct fchs_s *fchs, int len)
{
	struct fc_els_cmd_s *els_cmd = (struct fc_els_cmd_s *) (fchs + 1);

	len = len;
	if (els_cmd->els_code != FC_ELS_ACC)
		return FC_PARSE_FAILURE;

	return FC_PARSE_OK;
}

u16
fc_ba_rjt_build(struct fchs_s *fchs, u32 d_id, u32 s_id, u16 ox_id,
		u32 reason_code, u32 reason_expl)
{
	struct fc_ba_rjt_s *ba_rjt = (struct fc_ba_rjt_s *) (fchs + 1);

	fc_bls_rsp_build(fchs, d_id, s_id, ox_id);

	fchs->cat_info = FC_CAT_BA_RJT;
	ba_rjt->reason_code = reason_code;
	ba_rjt->reason_expl = reason_expl;
	return sizeof(struct fc_ba_rjt_s);
}

static void
fc_gs_cthdr_build(struct ct_hdr_s *cthdr, u32 s_id, u16 cmd_code)
{
	memset(cthdr, 0, sizeof(struct ct_hdr_s));
	cthdr->rev_id = CT_GS3_REVISION;
	cthdr->gs_type = CT_GSTYPE_DIRSERVICE;
	cthdr->gs_sub_type = CT_GSSUBTYPE_NAMESERVER;
	cthdr->cmd_rsp_code = cpu_to_be16(cmd_code);
}

static void
fc_gs_fdmi_cthdr_build(struct ct_hdr_s *cthdr, u32 s_id, u16 cmd_code)
{
	memset(cthdr, 0, sizeof(struct ct_hdr_s));
	cthdr->rev_id = CT_GS3_REVISION;
	cthdr->gs_type = CT_GSTYPE_MGMTSERVICE;
	cthdr->gs_sub_type = CT_GSSUBTYPE_HBA_MGMTSERVER;
	cthdr->cmd_rsp_code = cpu_to_be16(cmd_code);
}

static void
fc_gs_ms_cthdr_build(struct ct_hdr_s *cthdr, u32 s_id, u16 cmd_code,
					 u8 sub_type)
{
	memset(cthdr, 0, sizeof(struct ct_hdr_s));
	cthdr->rev_id = CT_GS3_REVISION;
	cthdr->gs_type = CT_GSTYPE_MGMTSERVICE;
	cthdr->gs_sub_type = sub_type;
	cthdr->cmd_rsp_code = cpu_to_be16(cmd_code);
}

u16
fc_gidpn_build(struct fchs_s *fchs, void *pyld, u32 s_id, u16 ox_id,
	       wwn_t port_name)
{
	struct ct_hdr_s *cthdr = (struct ct_hdr_s *) pyld;
	struct fcgs_gidpn_req_s *gidpn = (struct fcgs_gidpn_req_s *)(cthdr + 1);
	u32        d_id = bfa_os_hton3b(FC_NAME_SERVER);

	fc_gs_fchdr_build(fchs, d_id, s_id, ox_id);
	fc_gs_cthdr_build(cthdr, s_id, GS_GID_PN);

	memset(gidpn, 0, sizeof(struct fcgs_gidpn_req_s));
	gidpn->port_name = port_name;
	return sizeof(struct fcgs_gidpn_req_s) + sizeof(struct ct_hdr_s);
}

u16
fc_gpnid_build(struct fchs_s *fchs, void *pyld, u32 s_id, u16 ox_id,
	       u32 port_id)
{
	struct ct_hdr_s *cthdr = (struct ct_hdr_s *) pyld;
	fcgs_gpnid_req_t *gpnid = (fcgs_gpnid_req_t *) (cthdr + 1);
	u32        d_id = bfa_os_hton3b(FC_NAME_SERVER);

	fc_gs_fchdr_build(fchs, d_id, s_id, ox_id);
	fc_gs_cthdr_build(cthdr, s_id, GS_GPN_ID);

	memset(gpnid, 0, sizeof(fcgs_gpnid_req_t));
	gpnid->dap = port_id;
	return sizeof(fcgs_gpnid_req_t) + sizeof(struct ct_hdr_s);
}

u16
fc_gnnid_build(struct fchs_s *fchs, void *pyld, u32 s_id, u16 ox_id,
	       u32 port_id)
{
	struct ct_hdr_s *cthdr = (struct ct_hdr_s *) pyld;
	fcgs_gnnid_req_t *gnnid = (fcgs_gnnid_req_t *) (cthdr + 1);
	u32        d_id = bfa_os_hton3b(FC_NAME_SERVER);

	fc_gs_fchdr_build(fchs, d_id, s_id, ox_id);
	fc_gs_cthdr_build(cthdr, s_id, GS_GNN_ID);

	memset(gnnid, 0, sizeof(fcgs_gnnid_req_t));
	gnnid->dap = port_id;
	return sizeof(fcgs_gnnid_req_t) + sizeof(struct ct_hdr_s);
}

u16
fc_ct_rsp_parse(struct ct_hdr_s *cthdr)
{
	if (be16_to_cpu(cthdr->cmd_rsp_code) != CT_RSP_ACCEPT) {
		if (cthdr->reason_code == CT_RSN_LOGICAL_BUSY)
			return FC_PARSE_BUSY;
		else
			return FC_PARSE_FAILURE;
	}

	return FC_PARSE_OK;
}

u16
fc_scr_build(struct fchs_s *fchs, struct fc_scr_s *scr,
		u8 set_br_reg, u32 s_id, u16 ox_id)
{
	u32        d_id = bfa_os_hton3b(FC_FABRIC_CONTROLLER);

	fc_els_req_build(fchs, d_id, s_id, ox_id);

	memset(scr, 0, sizeof(struct fc_scr_s));
	scr->command = FC_ELS_SCR;
	scr->reg_func = FC_SCR_REG_FUNC_FULL;
	if (set_br_reg)
		scr->vu_reg_func = FC_VU_SCR_REG_FUNC_FABRIC_NAME_CHANGE;

	return sizeof(struct fc_scr_s);
}

u16
fc_rscn_build(struct fchs_s *fchs, struct fc_rscn_pl_s *rscn,
		u32 s_id, u16 ox_id)
{
	u32        d_id = bfa_os_hton3b(FC_FABRIC_CONTROLLER);
	u16        payldlen;

	fc_els_req_build(fchs, d_id, s_id, ox_id);
	rscn->command = FC_ELS_RSCN;
	rscn->pagelen = sizeof(rscn->event[0]);

	payldlen = sizeof(u32) + rscn->pagelen;
	rscn->payldlen = cpu_to_be16(payldlen);

	rscn->event[0].format = FC_RSCN_FORMAT_PORTID;
	rscn->event[0].portid = s_id;

	return sizeof(struct fc_rscn_pl_s);
}

u16
fc_rftid_build(struct fchs_s *fchs, void *pyld, u32 s_id, u16 ox_id,
	       enum bfa_lport_role roles)
{
	struct ct_hdr_s *cthdr = (struct ct_hdr_s *) pyld;
	struct fcgs_rftid_req_s *rftid = (struct fcgs_rftid_req_s *)(cthdr + 1);
	u32        type_value, d_id = bfa_os_hton3b(FC_NAME_SERVER);
	u8         index;

	fc_gs_fchdr_build(fchs, d_id, s_id, ox_id);
	fc_gs_cthdr_build(cthdr, s_id, GS_RFT_ID);

	memset(rftid, 0, sizeof(struct fcgs_rftid_req_s));

	rftid->dap = s_id;

	/* By default, FCP FC4 Type is registered */
	index = FC_TYPE_FCP >> 5;
	type_value = 1 << (FC_TYPE_FCP % 32);
	rftid->fc4_type[index] = cpu_to_be32(type_value);

	return sizeof(struct fcgs_rftid_req_s) + sizeof(struct ct_hdr_s);
}

u16
fc_rftid_build_sol(struct fchs_s *fchs, void *pyld, u32 s_id, u16 ox_id,
		   u8 *fc4_bitmap, u32 bitmap_size)
{
	struct ct_hdr_s *cthdr = (struct ct_hdr_s *) pyld;
	struct fcgs_rftid_req_s *rftid = (struct fcgs_rftid_req_s *)(cthdr + 1);
	u32        d_id = bfa_os_hton3b(FC_NAME_SERVER);

	fc_gs_fchdr_build(fchs, d_id, s_id, ox_id);
	fc_gs_cthdr_build(cthdr, s_id, GS_RFT_ID);

	memset(rftid, 0, sizeof(struct fcgs_rftid_req_s));

	rftid->dap = s_id;
	memcpy((void *)rftid->fc4_type, (void *)fc4_bitmap,
		(bitmap_size < 32 ? bitmap_size : 32));

	return sizeof(struct fcgs_rftid_req_s) + sizeof(struct ct_hdr_s);
}

u16
fc_rffid_build(struct fchs_s *fchs, void *pyld, u32 s_id, u16 ox_id,
	       u8 fc4_type, u8 fc4_ftrs)
{
	struct ct_hdr_s *cthdr = (struct ct_hdr_s *) pyld;
	struct fcgs_rffid_req_s *rffid = (struct fcgs_rffid_req_s *)(cthdr + 1);
	u32         d_id = bfa_os_hton3b(FC_NAME_SERVER);

	fc_gs_fchdr_build(fchs, d_id, s_id, ox_id);
	fc_gs_cthdr_build(cthdr, s_id, GS_RFF_ID);

	memset(rffid, 0, sizeof(struct fcgs_rffid_req_s));

	rffid->dap	    = s_id;
	rffid->fc4ftr_bits  = fc4_ftrs;
	rffid->fc4_type	    = fc4_type;

	return sizeof(struct fcgs_rffid_req_s) + sizeof(struct ct_hdr_s);
}

u16
fc_rspnid_build(struct fchs_s *fchs, void *pyld, u32 s_id, u16 ox_id,
		u8 *name)
{

	struct ct_hdr_s *cthdr = (struct ct_hdr_s *) pyld;
	struct fcgs_rspnid_req_s *rspnid =
			(struct fcgs_rspnid_req_s *)(cthdr + 1);
	u32        d_id = bfa_os_hton3b(FC_NAME_SERVER);

	fc_gs_fchdr_build(fchs, d_id, s_id, ox_id);
	fc_gs_cthdr_build(cthdr, s_id, GS_RSPN_ID);

	memset(rspnid, 0, sizeof(struct fcgs_rspnid_req_s));

	rspnid->dap = s_id;
	rspnid->spn_len = (u8) strlen((char *)name);
	strncpy((char *)rspnid->spn, (char *)name, rspnid->spn_len);

	return sizeof(struct fcgs_rspnid_req_s) + sizeof(struct ct_hdr_s);
}

u16
fc_gid_ft_build(struct fchs_s *fchs, void *pyld, u32 s_id, u8 fc4_type)
{

	struct ct_hdr_s *cthdr = (struct ct_hdr_s *) pyld;
	struct fcgs_gidft_req_s *gidft = (struct fcgs_gidft_req_s *)(cthdr + 1);
	u32        d_id = bfa_os_hton3b(FC_NAME_SERVER);

	fc_gs_fchdr_build(fchs, d_id, s_id, 0);

	fc_gs_cthdr_build(cthdr, s_id, GS_GID_FT);

	memset(gidft, 0, sizeof(struct fcgs_gidft_req_s));
	gidft->fc4_type = fc4_type;
	gidft->domain_id = 0;
	gidft->area_id = 0;

	return sizeof(struct fcgs_gidft_req_s) + sizeof(struct ct_hdr_s);
}

u16
fc_rpnid_build(struct fchs_s *fchs, void *pyld, u32 s_id, u32 port_id,
	       wwn_t port_name)
{
	struct ct_hdr_s *cthdr = (struct ct_hdr_s *) pyld;
	struct fcgs_rpnid_req_s *rpnid = (struct fcgs_rpnid_req_s *)(cthdr + 1);
	u32        d_id = bfa_os_hton3b(FC_NAME_SERVER);

	fc_gs_fchdr_build(fchs, d_id, s_id, 0);
	fc_gs_cthdr_build(cthdr, s_id, GS_RPN_ID);

	memset(rpnid, 0, sizeof(struct fcgs_rpnid_req_s));
	rpnid->port_id = port_id;
	rpnid->port_name = port_name;

	return sizeof(struct fcgs_rpnid_req_s) + sizeof(struct ct_hdr_s);
}

u16
fc_rnnid_build(struct fchs_s *fchs, void *pyld, u32 s_id, u32 port_id,
	       wwn_t node_name)
{
	struct ct_hdr_s *cthdr = (struct ct_hdr_s *) pyld;
	struct fcgs_rnnid_req_s *rnnid = (struct fcgs_rnnid_req_s *)(cthdr + 1);
	u32        d_id = bfa_os_hton3b(FC_NAME_SERVER);

	fc_gs_fchdr_build(fchs, d_id, s_id, 0);
	fc_gs_cthdr_build(cthdr, s_id, GS_RNN_ID);

	memset(rnnid, 0, sizeof(struct fcgs_rnnid_req_s));
	rnnid->port_id = port_id;
	rnnid->node_name = node_name;

	return sizeof(struct fcgs_rnnid_req_s) + sizeof(struct ct_hdr_s);
}

u16
fc_rcsid_build(struct fchs_s *fchs, void *pyld, u32 s_id, u32 port_id,
	       u32 cos)
{
	struct ct_hdr_s *cthdr = (struct ct_hdr_s *) pyld;
	struct fcgs_rcsid_req_s *rcsid =
			(struct fcgs_rcsid_req_s *) (cthdr + 1);
	u32        d_id = bfa_os_hton3b(FC_NAME_SERVER);

	fc_gs_fchdr_build(fchs, d_id, s_id, 0);
	fc_gs_cthdr_build(cthdr, s_id, GS_RCS_ID);

	memset(rcsid, 0, sizeof(struct fcgs_rcsid_req_s));
	rcsid->port_id = port_id;
	rcsid->cos = cos;

	return sizeof(struct fcgs_rcsid_req_s) + sizeof(struct ct_hdr_s);
}

u16
fc_rptid_build(struct fchs_s *fchs, void *pyld, u32 s_id, u32 port_id,
	       u8 port_type)
{
	struct ct_hdr_s *cthdr = (struct ct_hdr_s *) pyld;
	struct fcgs_rptid_req_s *rptid = (struct fcgs_rptid_req_s *)(cthdr + 1);
	u32        d_id = bfa_os_hton3b(FC_NAME_SERVER);

	fc_gs_fchdr_build(fchs, d_id, s_id, 0);
	fc_gs_cthdr_build(cthdr, s_id, GS_RPT_ID);

	memset(rptid, 0, sizeof(struct fcgs_rptid_req_s));
	rptid->port_id = port_id;
	rptid->port_type = port_type;

	return sizeof(struct fcgs_rptid_req_s) + sizeof(struct ct_hdr_s);
}

u16
fc_ganxt_build(struct fchs_s *fchs, void *pyld, u32 s_id, u32 port_id)
{
	struct ct_hdr_s *cthdr = (struct ct_hdr_s *) pyld;
	struct fcgs_ganxt_req_s *ganxt = (struct fcgs_ganxt_req_s *)(cthdr + 1);
	u32        d_id = bfa_os_hton3b(FC_NAME_SERVER);

	fc_gs_fchdr_build(fchs, d_id, s_id, 0);
	fc_gs_cthdr_build(cthdr, s_id, GS_GA_NXT);

	memset(ganxt, 0, sizeof(struct fcgs_ganxt_req_s));
	ganxt->port_id = port_id;

	return sizeof(struct ct_hdr_s) + sizeof(struct fcgs_ganxt_req_s);
}

/*
 * Builds fc hdr and ct hdr for FDMI requests.
 */
u16
fc_fdmi_reqhdr_build(struct fchs_s *fchs, void *pyld, u32 s_id,
		     u16 cmd_code)
{

	struct ct_hdr_s *cthdr = (struct ct_hdr_s *) pyld;
	u32        d_id = bfa_os_hton3b(FC_MGMT_SERVER);

	fc_gs_fchdr_build(fchs, d_id, s_id, 0);
	fc_gs_fdmi_cthdr_build(cthdr, s_id, cmd_code);

	return sizeof(struct ct_hdr_s);
}

/*
 * Given a FC4 Type, this function returns a fc4 type bitmask
 */
void
fc_get_fc4type_bitmask(u8 fc4_type, u8 *bit_mask)
{
	u8         index;
	u32       *ptr = (u32 *) bit_mask;
	u32        type_value;

	/*
	 * @todo : Check for bitmask size
	 */

	index = fc4_type >> 5;
	type_value = 1 << (fc4_type % 32);
	ptr[index] = cpu_to_be32(type_value);

}

/*
 *	GMAL Request
 */
u16
fc_gmal_req_build(struct fchs_s *fchs, void *pyld, u32 s_id, wwn_t wwn)
{
	struct ct_hdr_s *cthdr = (struct ct_hdr_s *) pyld;
	fcgs_gmal_req_t *gmal = (fcgs_gmal_req_t *) (cthdr + 1);
	u32        d_id = bfa_os_hton3b(FC_MGMT_SERVER);

	fc_gs_fchdr_build(fchs, d_id, s_id, 0);
	fc_gs_ms_cthdr_build(cthdr, s_id, GS_FC_GMAL_CMD,
			CT_GSSUBTYPE_CFGSERVER);

	memset(gmal, 0, sizeof(fcgs_gmal_req_t));
	gmal->wwn = wwn;

	return sizeof(struct ct_hdr_s) + sizeof(fcgs_gmal_req_t);
}

/*
 * GFN (Get Fabric Name) Request
 */
u16
fc_gfn_req_build(struct fchs_s *fchs, void *pyld, u32 s_id, wwn_t wwn)
{
	struct ct_hdr_s *cthdr = (struct ct_hdr_s *) pyld;
	fcgs_gfn_req_t *gfn = (fcgs_gfn_req_t *) (cthdr + 1);
	u32        d_id = bfa_os_hton3b(FC_MGMT_SERVER);

	fc_gs_fchdr_build(fchs, d_id, s_id, 0);
	fc_gs_ms_cthdr_build(cthdr, s_id, GS_FC_GFN_CMD,
			CT_GSSUBTYPE_CFGSERVER);

	memset(gfn, 0, sizeof(fcgs_gfn_req_t));
	gfn->wwn = wwn;

	return sizeof(struct ct_hdr_s) + sizeof(fcgs_gfn_req_t);
}