summaryrefslogtreecommitdiffstats
path: root/drivers/scsi/bfa/bfa_fc.h
blob: bf0067e0fd0da5592401e57e36fcaf5e7ca1b72f (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
1411
1412
1413
1414
1415
1416
1417
1418
1419
1420
1421
1422
1423
1424
1425
1426
1427
1428
1429
1430
1431
1432
1433
1434
1435
1436
1437
1438
1439
1440
1441
1442
1443
1444
1445
1446
1447
1448
1449
1450
1451
1452
1453
1454
1455
1456
1457
1458
1459
1460
1461
1462
1463
1464
1465
1466
1467
1468
1469
1470
1471
1472
1473
1474
1475
1476
1477
1478
1479
1480
1481
1482
1483
1484
1485
1486
1487
1488
1489
1490
1491
1492
1493
1494
1495
1496
1497
1498
1499
1500
1501
1502
1503
1504
1505
1506
1507
1508
1509
1510
1511
1512
1513
1514
1515
1516
1517
1518
1519
1520
1521
1522
1523
1524
1525
1526
1527
1528
1529
1530
1531
1532
1533
1534
1535
1536
1537
1538
1539
1540
1541
1542
1543
1544
1545
1546
1547
1548
1549
1550
1551
1552
1553
1554
1555
1556
1557
1558
1559
1560
1561
1562
1563
1564
1565
1566
1567
1568
1569
1570
1571
1572
1573
1574
1575
1576
1577
1578
1579
1580
1581
1582
1583
1584
1585
1586
1587
1588
1589
1590
1591
1592
1593
1594
1595
1596
1597
1598
1599
1600
1601
1602
1603
1604
1605
1606
1607
/*
 * 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.
 */

#ifndef __BFA_FC_H__
#define __BFA_FC_H__

#include "bfad_drv.h"

typedef u64 wwn_t;

#define WWN_NULL	(0)
#define FC_SYMNAME_MAX	256	/*  max name server symbolic name size */

#pragma pack(1)

#define MAC_ADDRLEN	(6)
struct mac_s { u8 mac[MAC_ADDRLEN]; };
#define mac_t struct mac_s

/*
 * generic SCSI cdb definition
 */
#define SCSI_MAX_CDBLEN     16
struct scsi_cdb_s {
	u8         scsi_cdb[SCSI_MAX_CDBLEN];
};

/* ------------------------------------------------------------
 * SCSI status byte values
 * ------------------------------------------------------------
 */
#define SCSI_STATUS_GOOD                   0x00
#define SCSI_STATUS_CHECK_CONDITION        0x02
#define SCSI_STATUS_CONDITION_MET          0x04
#define SCSI_STATUS_BUSY                   0x08
#define SCSI_STATUS_INTERMEDIATE           0x10
#define SCSI_STATUS_ICM                    0x14 /* intermediate condition met */
#define SCSI_STATUS_RESERVATION_CONFLICT   0x18
#define SCSI_STATUS_COMMAND_TERMINATED     0x22
#define SCSI_STATUS_QUEUE_FULL             0x28
#define SCSI_STATUS_ACA_ACTIVE             0x30

#define SCSI_MAX_ALLOC_LEN      0xFF    /* maximum allocarion length */

/*
 * Fibre Channel Header Structure (FCHS) definition
 */
struct fchs_s {
#ifdef __BIG_ENDIAN
	u32        routing:4;	/* routing bits */
	u32        cat_info:4;	/* category info */
#else
	u32        cat_info:4;	/* category info */
	u32        routing:4;	/* routing bits */
#endif
	u32        d_id:24;	/* destination identifier */

	u32        cs_ctl:8;	/* class specific control */
	u32        s_id:24;	/* source identifier */

	u32        type:8;	/* data structure type */
	u32        f_ctl:24;	/* initial frame control */

	u8         seq_id;	/* sequence identifier */
	u8         df_ctl;	/* data field control */
	u16        seq_cnt;	/* sequence count */

	__be16     ox_id;	/* originator exchange ID */
	u16        rx_id;	/* responder exchange ID */

	u32        ro;		/* relative offset */
};

/*
 * routing bit definitions
 */
enum {
	FC_RTG_FC4_DEV_DATA	= 0x0,	/* FC-4 Device Data */
	FC_RTG_EXT_LINK		= 0x2,	/* Extended Link Data */
	FC_RTG_FC4_LINK_DATA	= 0x3,	/* FC-4 Link Data */
	FC_RTG_VIDEO_DATA	= 0x4,	/* Video Data */
	FC_RTG_EXT_HDR		= 0x5,	/* VFT, IFR or Encapsuled */
	FC_RTG_BASIC_LINK	= 0x8,	/* Basic Link data */
	FC_RTG_LINK_CTRL	= 0xC,	/* Link Control */
};

/*
 * information category for extended link data and FC-4 Link Data
 */
enum {
	FC_CAT_LD_REQUEST	= 0x2,	/* Request */
	FC_CAT_LD_REPLY		= 0x3,	/* Reply */
	FC_CAT_LD_DIAG		= 0xF,	/* for DIAG use only */
};

/*
 * information category for extended headers (VFT, IFR or encapsulation)
 */
enum {
	FC_CAT_VFT_HDR = 0x0,	/* Virtual fabric tagging header */
	FC_CAT_IFR_HDR = 0x1,	/* Inter-Fabric routing header */
	FC_CAT_ENC_HDR = 0x2,	/* Encapsulation header */
};

/*
 * information category for FC-4 device data
 */
enum {
	FC_CAT_UNCATEG_INFO	= 0x0,	/* Uncategorized information */
	FC_CAT_SOLICIT_DATA	= 0x1,	/* Solicited Data */
	FC_CAT_UNSOLICIT_CTRL	= 0x2,	/* Unsolicited Control */
	FC_CAT_SOLICIT_CTRL	= 0x3,	/* Solicited Control */
	FC_CAT_UNSOLICIT_DATA	= 0x4,	/* Unsolicited Data */
	FC_CAT_DATA_DESC	= 0x5,	/* Data Descriptor */
	FC_CAT_UNSOLICIT_CMD	= 0x6,	/* Unsolicited Command */
	FC_CAT_CMD_STATUS	= 0x7,	/* Command Status */
};

/*
 * Type Field Definitions. FC-PH Section 18.5 pg. 165
 */
enum {
	FC_TYPE_BLS		= 0x0,	/* Basic Link Service */
	FC_TYPE_ELS		= 0x1,	/* Extended Link Service */
	FC_TYPE_IP		= 0x5,	/* IP */
	FC_TYPE_FCP		= 0x8,	/* SCSI-FCP */
	FC_TYPE_GPP		= 0x9,	/* SCSI_GPP */
	FC_TYPE_SERVICES	= 0x20,	/* Fibre Channel Services */
	FC_TYPE_FC_FSS		= 0x22,	/* Fabric Switch Services */
	FC_TYPE_FC_AL		= 0x23,	/* FC-AL */
	FC_TYPE_FC_SNMP		= 0x24,	/* FC-SNMP */
	FC_TYPE_FC_SPINFAB	= 0xEE,	/* SPINFAB */
	FC_TYPE_FC_DIAG		= 0xEF,	/* DIAG */
	FC_TYPE_MAX		= 256,	/* 256 FC-4 types */
};

/*
 * Frame Control Definitions. FC-PH Table-45. pg. 168
 */
enum {
	FCTL_EC_ORIG = 0x000000,	/* exchange originator */
	FCTL_EC_RESP = 0x800000,	/* exchange responder */
	FCTL_SEQ_INI = 0x000000,	/* sequence initiator */
	FCTL_SEQ_REC = 0x400000,	/* sequence recipient */
	FCTL_FS_EXCH = 0x200000,	/* first sequence of xchg */
	FCTL_LS_EXCH = 0x100000,	/* last sequence of xchg */
	FCTL_END_SEQ = 0x080000,	/* last frame of sequence */
	FCTL_SI_XFER = 0x010000,	/* seq initiative transfer */
	FCTL_RO_PRESENT = 0x000008,	/* relative offset present */
	FCTL_FILLBYTE_MASK = 0x000003	/* , fill byte mask */
};

/*
 * Fabric Well Known Addresses
 */
enum {
	FC_MIN_WELL_KNOWN_ADDR		= 0xFFFFF0,
	FC_DOMAIN_CONTROLLER_MASK	= 0xFFFC00,
	FC_ALIAS_SERVER			= 0xFFFFF8,
	FC_MGMT_SERVER			= 0xFFFFFA,
	FC_TIME_SERVER			= 0xFFFFFB,
	FC_NAME_SERVER			= 0xFFFFFC,
	FC_FABRIC_CONTROLLER		= 0xFFFFFD,
	FC_FABRIC_PORT			= 0xFFFFFE,
	FC_BROADCAST_SERVER		= 0xFFFFFF
};

/*
 * domain/area/port defines
 */
#define FC_DOMAIN_MASK  0xFF0000
#define FC_DOMAIN_SHIFT 16
#define FC_AREA_MASK    0x00FF00
#define FC_AREA_SHIFT   8
#define FC_PORT_MASK    0x0000FF
#define FC_PORT_SHIFT   0

#define FC_GET_DOMAIN(p)	(((p) & FC_DOMAIN_MASK) >> FC_DOMAIN_SHIFT)
#define FC_GET_AREA(p)		(((p) & FC_AREA_MASK) >> FC_AREA_SHIFT)
#define FC_GET_PORT(p)		(((p) & FC_PORT_MASK) >> FC_PORT_SHIFT)

#define FC_DOMAIN_CTRLR(p)	(FC_DOMAIN_CONTROLLER_MASK | (FC_GET_DOMAIN(p)))

enum {
	FC_RXID_ANY = 0xFFFFU,
};

/*
 * generic ELS command
 */
struct fc_els_cmd_s {
	u32        els_code:8;	/* ELS Command Code */
	u32        reserved:24;
};

/*
 * ELS Command Codes. FC-PH Table-75. pg. 223
 */
enum {
	FC_ELS_LS_RJT = 0x1,	/* Link Service Reject. */
	FC_ELS_ACC = 0x02,	/* Accept */
	FC_ELS_PLOGI = 0x03,	/* N_Port Login. */
	FC_ELS_FLOGI = 0x04,	/* F_Port Login. */
	FC_ELS_LOGO = 0x05,	/* Logout. */
	FC_ELS_ABTX = 0x06,	/* Abort Exchange */
	FC_ELS_RES = 0x08,	/* Read Exchange status */
	FC_ELS_RSS = 0x09,	/* Read sequence status block */
	FC_ELS_RSI = 0x0A,	/* Request Sequence Initiative */
	FC_ELS_ESTC = 0x0C,	/* Estimate Credit. */
	FC_ELS_RTV = 0x0E,	/* Read Timeout Value. */
	FC_ELS_RLS = 0x0F,	/* Read Link Status. */
	FC_ELS_ECHO = 0x10,	/* Echo */
	FC_ELS_TEST = 0x11,	/* Test */
	FC_ELS_RRQ = 0x12,	/* Reinstate Recovery Qualifier. */
	FC_ELS_REC = 0x13,	/* Add this for TAPE support in FCR */
	FC_ELS_PRLI = 0x20,	/* Process Login */
	FC_ELS_PRLO = 0x21,	/* Process Logout. */
	FC_ELS_SCN = 0x22,	/* State Change Notification. */
	FC_ELS_TPRLO = 0x24,	/* Third Party Process Logout. */
	FC_ELS_PDISC = 0x50,	/* Discover N_Port Parameters. */
	FC_ELS_FDISC = 0x51,	/* Discover F_Port Parameters. */
	FC_ELS_ADISC = 0x52,	/* Discover Address. */
	FC_ELS_FARP_REQ = 0x54,	/* FARP Request. */
	FC_ELS_FARP_REP = 0x55,	/* FARP Reply. */
	FC_ELS_FAN = 0x60,	/* Fabric Address Notification */
	FC_ELS_RSCN = 0x61,	/* Reg State Change Notification */
	FC_ELS_SCR = 0x62,	/* State Change Registration. */
	FC_ELS_RTIN = 0x77,	/* Mangement server request */
	FC_ELS_RNID = 0x78,	/* Mangement server request */
	FC_ELS_RLIR = 0x79,	/* Registered Link Incident Record */

	FC_ELS_RPSC = 0x7D,	/* Report Port Speed Capabilities */
	FC_ELS_QSA = 0x7E,	/* Query Security Attributes. Ref FC-SP */
	FC_ELS_E2E_LBEACON = 0x81,
				/* End-to-End Link Beacon */
	FC_ELS_AUTH = 0x90,	/* Authentication. Ref FC-SP */
	FC_ELS_RFCN = 0x97,	/* Request Fabric Change Notification. Ref
				 *FC-SP */
};

/*
 *  Version numbers for FC-PH standards,
 *  used in login to indicate what port
 *  supports. See FC-PH-X table 158.
 */
enum {
	FC_PH_VER_4_3 = 0x09,
	FC_PH_VER_PH_3 = 0x20,
};

/*
 * PDU size defines
 */
enum {
	FC_MIN_PDUSZ = 512,
	FC_MAX_PDUSZ = 2112,
};

/*
 * N_Port PLOGI Common Service Parameters.
 * FC-PH-x. Figure-76. pg. 308.
 */
struct fc_plogi_csp_s {
	u8		verhi;		/* FC-PH high version */
	u8		verlo;		/* FC-PH low version */
	__be16		bbcred;		/* BB_Credit */

#ifdef __BIG_ENDIAN
	u8		ciro:1,		/* continuously increasing RO */
			rro:1,		/* random relative offset */
			npiv_supp:1,	/* NPIV supported */
			port_type:1,	/* N_Port/F_port */
			altbbcred:1,	/* alternate BB_Credit */
			resolution:1,	/* ms/ns ED_TOV resolution */
			vvl_info:1,	/* VVL Info included */
			reserved1:1;

	u8		hg_supp:1,
			query_dbc:1,
			security:1,
			sync_cap:1,
			r_t_tov:1,
			dh_dup_supp:1,
			cisc:1,		/* continuously increasing seq count */
			payload:1;
#else
	u8		reserved2:2,
			resolution:1,	/* ms/ns ED_TOV resolution */
			altbbcred:1,	/* alternate BB_Credit */
			port_type:1,	/* N_Port/F_port */
			npiv_supp:1,	/* NPIV supported */
			rro:1,		/* random relative offset */
			ciro:1;		/* continuously increasing RO */

	u8		payload:1,
			cisc:1,		/* continuously increasing seq count */
			dh_dup_supp:1,
			r_t_tov:1,
			sync_cap:1,
			security:1,
			query_dbc:1,
			hg_supp:1;
#endif
	__be16		rxsz;		/* receive data_field size */
	__be16		conseq;
	__be16		ro_bitmap;
	__be32		e_d_tov;
};

/*
 * N_Port PLOGI Class Specific Parameters.
 * FC-PH-x. Figure 78. pg. 318.
 */
struct fc_plogi_clp_s {
#ifdef __BIG_ENDIAN
	u32        class_valid:1;
	u32        intermix:1;	/* class intermix supported if set =1.
				 * valid only for class1. Reserved for
				 * class2 & class3 */
	u32        reserved1:2;
	u32        sequential:1;
	u32        reserved2:3;
#else
	u32        reserved2:3;
	u32        sequential:1;
	u32        reserved1:2;
	u32        intermix:1;	/* class intermix supported if set =1.
				 * valid only for class1. Reserved for
				 * class2 & class3 */
	u32        class_valid:1;
#endif
	u32        reserved3:24;

	u32        reserved4:16;
	u32        rxsz:16;	/* Receive data_field size */

	u32        reserved5:8;
	u32        conseq:8;
	u32        e2e_credit:16; /* end to end credit */

	u32        reserved7:8;
	u32        ospx:8;
	u32        reserved8:16;
};

/* ASCII value for each character in string "BRCD" */
#define FLOGI_VVL_BRCD    0x42524344

/*
 * PLOGI els command and reply payload
 */
struct fc_logi_s {
	struct fc_els_cmd_s	els_cmd;	/* ELS command code */
	struct fc_plogi_csp_s	csp;		/* common service params */
	wwn_t			port_name;
	wwn_t			node_name;
	struct fc_plogi_clp_s	class1;		/* class 1 service parameters */
	struct fc_plogi_clp_s	class2;		/* class 2 service parameters */
	struct fc_plogi_clp_s	class3;		/* class 3 service parameters */
	struct fc_plogi_clp_s	class4;		/* class 4 service parameters */
	u8			vvl[16];	/* vendor version level */
};

/*
 * LOGO els command payload
 */
struct fc_logo_s {
	struct fc_els_cmd_s	els_cmd;	/* ELS command code */
	u32			res1:8;
	u32		nport_id:24;	/* N_Port identifier of source */
	wwn_t           orig_port_name;	/* Port name of the LOGO originator */
};

/*
 * ADISC els command payload
 */
struct fc_adisc_s {
	struct fc_els_cmd_s els_cmd;	/* ELS command code */
	u32		res1:8;
	u32		orig_HA:24;	/* originator hard address */
	wwn_t		orig_port_name;	/* originator port name */
	wwn_t		orig_node_name;	/* originator node name */
	u32		res2:8;
	u32		nport_id:24;	/* originator NPortID */
};

/*
 * Exchange status block
 */
struct fc_exch_status_blk_s {
	u32        oxid:16;
	u32        rxid:16;
	u32        res1:8;
	u32        orig_np:24;	/* originator NPortID */
	u32        res2:8;
	u32        resp_np:24;	/* responder NPortID */
	u32        es_bits;
	u32        res3;
	/*
	 * un modified section of the fields
	 */
};

/*
 * RES els command payload
 */
struct fc_res_s {
	struct fc_els_cmd_s els_cmd;	/* ELS command code */
	u32        res1:8;
	u32        nport_id:24;		/* N_Port identifier of source */
	u32        oxid:16;
	u32        rxid:16;
	u8         assoc_hdr[32];
};

/*
 * RES els accept payload
 */
struct fc_res_acc_s {
	struct fc_els_cmd_s		els_cmd;	/* ELS command code */
	struct fc_exch_status_blk_s	fc_exch_blk; /* Exchange status block */
};

/*
 * REC els command payload
 */
struct fc_rec_s {
	struct fc_els_cmd_s els_cmd;	/* ELS command code */
	u32        res1:8;
	u32        nport_id:24;	/* N_Port identifier of source */
	u32        oxid:16;
	u32        rxid:16;
};

#define FC_REC_ESB_OWN_RSP	0x80000000	/* responder owns */
#define FC_REC_ESB_SI		0x40000000	/* SI is owned	*/
#define FC_REC_ESB_COMP		0x20000000	/* exchange is complete	*/
#define FC_REC_ESB_ENDCOND_ABN	0x10000000	/* abnormal ending	*/
#define FC_REC_ESB_RQACT	0x04000000	/* recovery qual active	*/
#define FC_REC_ESB_ERRP_MSK	0x03000000
#define FC_REC_ESB_OXID_INV	0x00800000	/* invalid OXID		*/
#define FC_REC_ESB_RXID_INV	0x00400000	/* invalid RXID		*/
#define FC_REC_ESB_PRIO_INUSE	0x00200000

/*
 * REC els accept payload
 */
struct fc_rec_acc_s {
	struct fc_els_cmd_s els_cmd;	/* ELS command code */
	u32        oxid:16;
	u32        rxid:16;
	u32        res1:8;
	u32        orig_id:24;	/* N_Port id of exchange originator */
	u32        res2:8;
	u32        resp_id:24;	/* N_Port id of exchange responder */
	u32        count;	/* data transfer count */
	u32        e_stat;	/* exchange status */
};

/*
 * RSI els payload
 */
struct fc_rsi_s {
	struct fc_els_cmd_s els_cmd;
	u32        res1:8;
	u32        orig_sid:24;
	u32        oxid:16;
	u32        rxid:16;
};

/*
 * structure for PRLI paramater pages, both request & response
 * see FC-PH-X table 113 & 115 for explanation also FCP table 8
 */
struct fc_prli_params_s {
	u32        reserved:16;
#ifdef __BIG_ENDIAN
	u32        reserved1:5;
	u32        rec_support:1;
	u32        task_retry_id:1;
	u32        retry:1;

	u32        confirm:1;
	u32        doverlay:1;
	u32        initiator:1;
	u32        target:1;
	u32        cdmix:1;
	u32        drmix:1;
	u32        rxrdisab:1;
	u32        wxrdisab:1;
#else
	u32        retry:1;
	u32        task_retry_id:1;
	u32        rec_support:1;
	u32        reserved1:5;

	u32        wxrdisab:1;
	u32        rxrdisab:1;
	u32        drmix:1;
	u32        cdmix:1;
	u32        target:1;
	u32        initiator:1;
	u32        doverlay:1;
	u32        confirm:1;
#endif
};

/*
 * valid values for rspcode in PRLI ACC payload
 */
enum {
	FC_PRLI_ACC_XQTD = 0x1,		/* request executed */
	FC_PRLI_ACC_PREDEF_IMG = 0x5,	/* predefined image - no prli needed */
};

struct fc_prli_params_page_s {
	u32        type:8;
	u32        codext:8;
#ifdef __BIG_ENDIAN
	u32        origprocasv:1;
	u32        rsppav:1;
	u32        imagepair:1;
	u32        reserved1:1;
	u32        rspcode:4;
#else
	u32        rspcode:4;
	u32        reserved1:1;
	u32        imagepair:1;
	u32        rsppav:1;
	u32        origprocasv:1;
#endif
	u32        reserved2:8;

	u32        origprocas;
	u32        rspprocas;
	struct fc_prli_params_s servparams;
};

/*
 * PRLI request and accept payload, FC-PH-X tables 112 & 114
 */
struct fc_prli_s {
	u32        command:8;
	u32        pglen:8;
	u32        pagebytes:16;
	struct fc_prli_params_page_s parampage;
};

/*
 * PRLO logout params page
 */
struct fc_prlo_params_page_s {
	u32        type:8;
	u32        type_ext:8;
#ifdef __BIG_ENDIAN
	u32        opa_valid:1;	/* originator process associator valid */
	u32        rpa_valid:1;	/* responder process associator valid */
	u32        res1:14;
#else
	u32        res1:14;
	u32        rpa_valid:1;	/* responder process associator valid */
	u32        opa_valid:1;	/* originator process associator valid */
#endif
	u32        orig_process_assc;
	u32        resp_process_assc;

	u32        res2;
};

/*
 * PRLO els command payload
 */
struct fc_prlo_s {
	u32	command:8;
	u32	page_len:8;
	u32	payload_len:16;
	struct fc_prlo_params_page_s	prlo_params[1];
};

/*
 * PRLO Logout response parameter page
 */
struct fc_prlo_acc_params_page_s {
	u32        type:8;
	u32        type_ext:8;

#ifdef __BIG_ENDIAN
	u32        opa_valid:1;	/* originator process associator valid */
	u32        rpa_valid:1;	/* responder process associator valid */
	u32        res1:14;
#else
	u32        res1:14;
	u32        rpa_valid:1;	/* responder process associator valid */
	u32        opa_valid:1;	/* originator process associator valid */
#endif
	u32        orig_process_assc;
	u32        resp_process_assc;

	u32        fc4type_csp;
};

/*
 * PRLO els command ACC payload
 */
struct fc_prlo_acc_s {
	u32        command:8;
	u32        page_len:8;
	u32        payload_len:16;
	struct fc_prlo_acc_params_page_s prlo_acc_params[1];
};

/*
 * SCR els command payload
 */
enum {
	FC_SCR_REG_FUNC_FABRIC_DETECTED = 0x01,
	FC_SCR_REG_FUNC_N_PORT_DETECTED = 0x02,
	FC_SCR_REG_FUNC_FULL = 0x03,
	FC_SCR_REG_FUNC_CLEAR_REG = 0xFF,
};

/* SCR VU registrations */
enum {
	FC_VU_SCR_REG_FUNC_FABRIC_NAME_CHANGE = 0x01
};

struct fc_scr_s {
	u32 command:8;
	u32 res:24;
	u32 vu_reg_func:8; /* Vendor Unique Registrations */
	u32 res1:16;
	u32 reg_func:8;
};

/*
 * Information category for Basic link data
 */
enum {
	FC_CAT_NOP	= 0x0,
	FC_CAT_ABTS	= 0x1,
	FC_CAT_RMC	= 0x2,
	FC_CAT_BA_ACC	= 0x4,
	FC_CAT_BA_RJT	= 0x5,
	FC_CAT_PRMT	= 0x6,
};

/*
 * LS_RJT els reply payload
 */
struct fc_ls_rjt_s {
	struct fc_els_cmd_s els_cmd;	/* ELS command code */
	u32        res1:8;
	u32        reason_code:8;	/* Reason code for reject */
	u32        reason_code_expl:8;	/* Reason code explanation */
	u32        vendor_unique:8;	/* Vendor specific */
};

/*
 * LS_RJT reason codes
 */
enum {
	FC_LS_RJT_RSN_INV_CMD_CODE	= 0x01,
	FC_LS_RJT_RSN_LOGICAL_ERROR	= 0x03,
	FC_LS_RJT_RSN_LOGICAL_BUSY	= 0x05,
	FC_LS_RJT_RSN_PROTOCOL_ERROR	= 0x07,
	FC_LS_RJT_RSN_UNABLE_TO_PERF_CMD = 0x09,
	FC_LS_RJT_RSN_CMD_NOT_SUPP	= 0x0B,
};

/*
 * LS_RJT reason code explanation
 */
enum {
	FC_LS_RJT_EXP_NO_ADDL_INFO		= 0x00,
	FC_LS_RJT_EXP_SPARMS_ERR_OPTIONS	= 0x01,
	FC_LS_RJT_EXP_SPARMS_ERR_INI_CTL	= 0x03,
	FC_LS_RJT_EXP_SPARMS_ERR_REC_CTL	= 0x05,
	FC_LS_RJT_EXP_SPARMS_ERR_RXSZ		= 0x07,
	FC_LS_RJT_EXP_SPARMS_ERR_CONSEQ		= 0x09,
	FC_LS_RJT_EXP_SPARMS_ERR_CREDIT		= 0x0B,
	FC_LS_RJT_EXP_INV_PORT_NAME		= 0x0D,
	FC_LS_RJT_EXP_INV_NODE_FABRIC_NAME	= 0x0E,
	FC_LS_RJT_EXP_INV_CSP			= 0x0F,
	FC_LS_RJT_EXP_INV_ASSOC_HDR		= 0x11,
	FC_LS_RJT_EXP_ASSOC_HDR_REQD		= 0x13,
	FC_LS_RJT_EXP_INV_ORIG_S_ID		= 0x15,
	FC_LS_RJT_EXP_INV_OXID_RXID_COMB	= 0x17,
	FC_LS_RJT_EXP_CMD_ALREADY_IN_PROG	= 0x19,
	FC_LS_RJT_EXP_LOGIN_REQUIRED		= 0x1E,
	FC_LS_RJT_EXP_INVALID_NPORT_ID		= 0x1F,
	FC_LS_RJT_EXP_INSUFF_RES		= 0x29,
	FC_LS_RJT_EXP_CMD_NOT_SUPP		= 0x2C,
	FC_LS_RJT_EXP_INV_PAYLOAD_LEN		= 0x2D,
};

/*
 * RRQ els command payload
 */
struct fc_rrq_s {
	struct fc_els_cmd_s els_cmd;	/* ELS command code */
	u32        res1:8;
	u32        s_id:24;	/* exchange originator S_ID */

	u32        ox_id:16;	/* originator exchange ID */
	u32        rx_id:16;	/* responder exchange ID */

	u32        res2[8];	/* optional association header */
};

/*
 * ABTS BA_ACC reply payload
 */
struct fc_ba_acc_s {
	u32        seq_id_valid:8;	/* set to 0x00 for Abort Exchange */
	u32        seq_id:8;		/* invalid for Abort Exchange */
	u32        res2:16;
	u32        ox_id:16;		/* OX_ID from ABTS frame */
	u32        rx_id:16;		/* RX_ID from ABTS frame */
	u32        low_seq_cnt:16;	/* set to 0x0000 for Abort Exchange */
	u32        high_seq_cnt:16;	/* set to 0xFFFF for Abort Exchange */
};

/*
 * ABTS BA_RJT reject payload
 */
struct fc_ba_rjt_s {
	u32        res1:8;		/* Reserved */
	u32        reason_code:8;	/* reason code for reject */
	u32        reason_expl:8;	/* reason code explanation */
	u32        vendor_unique:8; /* vendor unique reason code,set to 0 */
};

/*
 * TPRLO logout parameter page
 */
struct fc_tprlo_params_page_s {
	u32        type:8;
	u32        type_ext:8;

#ifdef __BIG_ENDIAN
	u32        opa_valid:1;
	u32        rpa_valid:1;
	u32        tpo_nport_valid:1;
	u32        global_process_logout:1;
	u32        res1:12;
#else
	u32        res1:12;
	u32        global_process_logout:1;
	u32        tpo_nport_valid:1;
	u32        rpa_valid:1;
	u32        opa_valid:1;
#endif

	u32        orig_process_assc;
	u32        resp_process_assc;

	u32        res2:8;
	u32        tpo_nport_id;
};

/*
 * TPRLO ELS command payload
 */
struct fc_tprlo_s {
	u32        command:8;
	u32        page_len:8;
	u32        payload_len:16;

	struct fc_tprlo_params_page_s tprlo_params[1];
};

enum fc_tprlo_type {
	FC_GLOBAL_LOGO = 1,
	FC_TPR_LOGO
};

/*
 * TPRLO els command ACC payload
 */
struct fc_tprlo_acc_s {
	u32	command:8;
	u32	page_len:8;
	u32	payload_len:16;
	struct fc_prlo_acc_params_page_s tprlo_acc_params[1];
};

/*
 * RSCN els command req payload
 */
#define FC_RSCN_PGLEN	0x4

enum fc_rscn_format {
	FC_RSCN_FORMAT_PORTID	= 0x0,
	FC_RSCN_FORMAT_AREA	= 0x1,
	FC_RSCN_FORMAT_DOMAIN	= 0x2,
	FC_RSCN_FORMAT_FABRIC	= 0x3,
};

struct fc_rscn_event_s {
	u32	format:2;
	u32	qualifier:4;
	u32	resvd:2;
	u32	portid:24;
};

struct fc_rscn_pl_s {
	u8	command;
	u8	pagelen;
	__be16	payldlen;
	struct fc_rscn_event_s event[1];
};

/*
 * ECHO els command req payload
 */
struct fc_echo_s {
	struct fc_els_cmd_s els_cmd;
};

/*
 * RNID els command
 */
#define RNID_NODEID_DATA_FORMAT_COMMON			0x00
#define RNID_NODEID_DATA_FORMAT_FCP3			0x08
#define RNID_NODEID_DATA_FORMAT_DISCOVERY		0xDF

#define RNID_ASSOCIATED_TYPE_UNKNOWN			0x00000001
#define RNID_ASSOCIATED_TYPE_OTHER                      0x00000002
#define RNID_ASSOCIATED_TYPE_HUB                        0x00000003
#define RNID_ASSOCIATED_TYPE_SWITCH                     0x00000004
#define RNID_ASSOCIATED_TYPE_GATEWAY                    0x00000005
#define RNID_ASSOCIATED_TYPE_STORAGE_DEVICE             0x00000009
#define RNID_ASSOCIATED_TYPE_HOST                       0x0000000A
#define RNID_ASSOCIATED_TYPE_STORAGE_SUBSYSTEM          0x0000000B
#define RNID_ASSOCIATED_TYPE_STORAGE_ACCESS_DEVICE      0x0000000E
#define RNID_ASSOCIATED_TYPE_NAS_SERVER                 0x00000011
#define RNID_ASSOCIATED_TYPE_BRIDGE                     0x00000002
#define RNID_ASSOCIATED_TYPE_VIRTUALIZATION_DEVICE      0x00000003
#define RNID_ASSOCIATED_TYPE_MULTI_FUNCTION_DEVICE      0x000000FF

/*
 * RNID els command payload
 */
struct fc_rnid_cmd_s {
	struct fc_els_cmd_s els_cmd;
	u32        node_id_data_format:8;
	u32        reserved:24;
};

/*
 * RNID els response payload
 */

struct fc_rnid_common_id_data_s {
	wwn_t		port_name;
	wwn_t           node_name;
};

struct fc_rnid_general_topology_data_s {
	u32        vendor_unique[4];
	__be32     asso_type;
	u32        phy_port_num;
	__be32     num_attached_nodes;
	u32        node_mgmt:8;
	u32        ip_version:8;
	u32        udp_tcp_port_num:16;
	u32        ip_address[4];
	u32        reserved:16;
	u32        vendor_specific:16;
};

struct fc_rnid_acc_s {
	struct fc_els_cmd_s els_cmd;
	u32        node_id_data_format:8;
	u32        common_id_data_length:8;
	u32        reserved:8;
	u32        specific_id_data_length:8;
	struct fc_rnid_common_id_data_s common_id_data;
	struct fc_rnid_general_topology_data_s gen_topology_data;
};

#define RNID_ASSOCIATED_TYPE_UNKNOWN                    0x00000001
#define RNID_ASSOCIATED_TYPE_OTHER                      0x00000002
#define RNID_ASSOCIATED_TYPE_HUB                        0x00000003
#define RNID_ASSOCIATED_TYPE_SWITCH                     0x00000004
#define RNID_ASSOCIATED_TYPE_GATEWAY                    0x00000005
#define RNID_ASSOCIATED_TYPE_STORAGE_DEVICE             0x00000009
#define RNID_ASSOCIATED_TYPE_HOST                       0x0000000A
#define RNID_ASSOCIATED_TYPE_STORAGE_SUBSYSTEM          0x0000000B
#define RNID_ASSOCIATED_TYPE_STORAGE_ACCESS_DEVICE      0x0000000E
#define RNID_ASSOCIATED_TYPE_NAS_SERVER                 0x00000011
#define RNID_ASSOCIATED_TYPE_BRIDGE                     0x00000002
#define RNID_ASSOCIATED_TYPE_VIRTUALIZATION_DEVICE      0x00000003
#define RNID_ASSOCIATED_TYPE_MULTI_FUNCTION_DEVICE      0x000000FF

enum fc_rpsc_speed_cap {
	RPSC_SPEED_CAP_1G = 0x8000,
	RPSC_SPEED_CAP_2G = 0x4000,
	RPSC_SPEED_CAP_4G = 0x2000,
	RPSC_SPEED_CAP_10G = 0x1000,
	RPSC_SPEED_CAP_8G = 0x0800,
	RPSC_SPEED_CAP_16G = 0x0400,

	RPSC_SPEED_CAP_UNKNOWN = 0x0001,
};

enum fc_rpsc_op_speed {
	RPSC_OP_SPEED_1G = 0x8000,
	RPSC_OP_SPEED_2G = 0x4000,
	RPSC_OP_SPEED_4G = 0x2000,
	RPSC_OP_SPEED_10G = 0x1000,
	RPSC_OP_SPEED_8G = 0x0800,
	RPSC_OP_SPEED_16G = 0x0400,

	RPSC_OP_SPEED_NOT_EST = 0x0001,	/* speed not established */
};

struct fc_rpsc_speed_info_s {
	__be16        port_speed_cap;	/* see enum fc_rpsc_speed_cap */
	__be16        port_op_speed;	/* see enum fc_rpsc_op_speed */
};

/*
 * If RPSC request is sent to the Domain Controller, the request is for
 * all the ports within that domain.
 */
struct fc_rpsc_cmd_s {
	struct fc_els_cmd_s els_cmd;
};

/*
 * RPSC Acc
 */
struct fc_rpsc_acc_s {
	u32        command:8;
	u32        rsvd:8;
	u32        num_entries:16;

	struct fc_rpsc_speed_info_s speed_info[1];
};

/*
 * If RPSC2 request is sent to the Domain Controller,
 */
#define FC_BRCD_TOKEN    0x42524344

struct fc_rpsc2_cmd_s {
	struct fc_els_cmd_s els_cmd;
	__be32	token;
	u16	resvd;
	__be16	num_pids;		/* Number of pids in the request */
	struct  {
		u32	rsvd1:8;
		u32	pid:24;		/* port identifier */
	} pid_list[1];
};

enum fc_rpsc2_port_type {
	RPSC2_PORT_TYPE_UNKNOWN = 0,
	RPSC2_PORT_TYPE_NPORT   = 1,
	RPSC2_PORT_TYPE_NLPORT  = 2,
	RPSC2_PORT_TYPE_NPIV_PORT  = 0x5f,
	RPSC2_PORT_TYPE_NPORT_TRUNK  = 0x6f,
};

/*
 * RPSC2 portInfo entry structure
 */
struct fc_rpsc2_port_info_s {
	__be32	pid;		/* PID */
	u16	resvd1;
	__be16	index;		/* port number / index */
	u8	resvd2;
	u8	type;		/* port type N/NL/... */
	__be16	speed;		/* port Operating Speed */
};

/*
 * RPSC2 Accept payload
 */
struct fc_rpsc2_acc_s {
	u8        els_cmd;
	u8        resvd;
	__be16    num_pids; /* Number of pids in the request */
	struct fc_rpsc2_port_info_s port_info[1]; /* port information */
};

/*
 * bit fields so that multiple classes can be specified
 */
enum fc_cos {
	FC_CLASS_2	= 0x04,
	FC_CLASS_3	= 0x08,
	FC_CLASS_2_3	= 0x0C,
};

/*
 * symbolic name
 */
struct fc_symname_s {
	u8         symname[FC_SYMNAME_MAX];
};

/*
 * protocol default timeout values
 */
#define FC_ED_TOV	2
#define FC_REC_TOV	(FC_ED_TOV + 1)
#define FC_RA_TOV	10
#define FC_ELS_TOV	(2 * FC_RA_TOV)
#define FC_FCCT_TOV	(3 * FC_RA_TOV)

/*
 * virtual fabric related defines
 */
#define FC_VF_ID_NULL    0	/*  must not be used as VF_ID */
#define FC_VF_ID_MIN     1
#define FC_VF_ID_MAX     0xEFF
#define FC_VF_ID_CTL     0xFEF	/*  control VF_ID */

/*
 * Virtual Fabric Tagging header format
 * @caution This is defined only in BIG ENDIAN format.
 */
struct fc_vft_s {
	u32        r_ctl:8;
	u32        ver:2;
	u32        type:4;
	u32        res_a:2;
	u32        priority:3;
	u32        vf_id:12;
	u32        res_b:1;
	u32        hopct:8;
	u32        res_c:24;
};

/*
 * FCP
 */
enum {
	FCP_RJT		= 0x01000000,	/* SRR reject */
	FCP_SRR_ACCEPT	= 0x02000000,	/* SRR accept */
	FCP_SRR		= 0x14000000,	/* Sequence Retransmission Request */
};

/*
 * FCP_CMND definitions
 */
#define FCP_CMND_CDB_LEN    16
#define FCP_CMND_LUN_LEN    8

struct fcp_cmnd_s {
	struct scsi_lun	lun;		/* 64-bit LU number */
	u8		crn;		/* command reference number */
#ifdef __BIG_ENDIAN
	u8		resvd:1,
			priority:4,	/* FCP-3: SAM-3 priority */
			taskattr:3;	/* scsi task attribute */
#else
	u8		taskattr:3,	/* scsi task attribute */
			priority:4,	/* FCP-3: SAM-3 priority */
			resvd:1;
#endif
	u8		tm_flags;	/* task management flags */
#ifdef __BIG_ENDIAN
	u8		addl_cdb_len:6,	/* additional CDB length words */
			iodir:2;	/* read/write FCP_DATA IUs */
#else
	u8		iodir:2,	/* read/write FCP_DATA IUs */
			addl_cdb_len:6;	/* additional CDB length */
#endif
	struct scsi_cdb_s      cdb;

	__be32        fcp_dl;	/* bytes to be transferred */
};

#define fcp_cmnd_cdb_len(_cmnd) ((_cmnd)->addl_cdb_len * 4 + FCP_CMND_CDB_LEN)
#define fcp_cmnd_fcpdl(_cmnd)	((&(_cmnd)->fcp_dl)[(_cmnd)->addl_cdb_len])

/*
 * struct fcp_cmnd_s .iodir field values
 */
enum fcp_iodir {
	FCP_IODIR_NONE  = 0,
	FCP_IODIR_WRITE = 1,
	FCP_IODIR_READ  = 2,
	FCP_IODIR_RW    = 3,
};

/*
 * Task management flags field - only one bit shall be set
 */
enum fcp_tm_cmnd {
	FCP_TM_ABORT_TASK_SET	= BIT(1),
	FCP_TM_CLEAR_TASK_SET	= BIT(2),
	FCP_TM_LUN_RESET	= BIT(4),
	FCP_TM_TARGET_RESET	= BIT(5),	/* obsolete in FCP-3 */
	FCP_TM_CLEAR_ACA	= BIT(6),
};

/*
 * FCP_RSP residue flags
 */
enum fcp_residue {
	FCP_NO_RESIDUE = 0,     /* no residue */
	FCP_RESID_OVER = 1,     /* more data left that was not sent */
	FCP_RESID_UNDER = 2,    /* less data than requested */
};

struct fcp_rspinfo_s {
	u32        res0:24;
	u32        rsp_code:8;		/* response code (as above) */
	u32        res1;
};

struct fcp_resp_s {
	u32        reserved[2];		/* 2 words reserved */
	u16        reserved2;
#ifdef __BIG_ENDIAN
	u8         reserved3:3;
	u8         fcp_conf_req:1;	/* FCP_CONF is requested */
	u8         resid_flags:2;	/* underflow/overflow */
	u8         sns_len_valid:1;	/* sense len is valid */
	u8         rsp_len_valid:1;	/* response len is valid */
#else
	u8         rsp_len_valid:1;	/* response len is valid */
	u8         sns_len_valid:1;	/* sense len is valid */
	u8         resid_flags:2;	/* underflow/overflow */
	u8         fcp_conf_req:1;	/* FCP_CONF is requested */
	u8         reserved3:3;
#endif
	u8         scsi_status;		/* one byte SCSI status */
	u32        residue;		/* residual data bytes */
	u32        sns_len;		/* length od sense info */
	u32        rsp_len;		/* length of response info */
};

#define fcp_snslen(__fcprsp)	((__fcprsp)->sns_len_valid ?		\
					(__fcprsp)->sns_len : 0)
#define fcp_rsplen(__fcprsp)	((__fcprsp)->rsp_len_valid ?		\
					(__fcprsp)->rsp_len : 0)
#define fcp_rspinfo(__fcprsp)	((struct fcp_rspinfo_s *)((__fcprsp) + 1))
#define fcp_snsinfo(__fcprsp)	(((u8 *)fcp_rspinfo(__fcprsp)) +	\
						fcp_rsplen(__fcprsp))
/*
 * CT
 */
struct ct_hdr_s {
	u32	rev_id:8;	/* Revision of the CT */
	u32	in_id:24;	/* Initiator Id */
	u32	gs_type:8;	/* Generic service Type */
	u32	gs_sub_type:8;	/* Generic service sub type */
	u32	options:8;	/* options */
	u32	rsvrd:8;	/* reserved */
	u32	cmd_rsp_code:16;/* ct command/response code */
	u32	max_res_size:16;/* maximum/residual size */
	u32	frag_id:8;	/* fragment ID */
	u32	reason_code:8;	/* reason code */
	u32	exp_code:8;	/* explanation code */
	u32	vendor_unq:8;	/* vendor unique */
};

/*
 * defines for the Revision
 */
enum {
	CT_GS3_REVISION = 0x01,
};

/*
 * defines for gs_type
 */
enum {
	CT_GSTYPE_KEYSERVICE	= 0xF7,
	CT_GSTYPE_ALIASSERVICE	= 0xF8,
	CT_GSTYPE_MGMTSERVICE	= 0xFA,
	CT_GSTYPE_TIMESERVICE	= 0xFB,
	CT_GSTYPE_DIRSERVICE	= 0xFC,
};

/*
 * defines for gs_sub_type for gs type directory service
 */
enum {
	CT_GSSUBTYPE_NAMESERVER = 0x02,
};

/*
 * defines for gs_sub_type for gs type management service
 */
enum {
	CT_GSSUBTYPE_CFGSERVER	= 0x01,
	CT_GSSUBTYPE_UNZONED_NS = 0x02,
	CT_GSSUBTYPE_ZONESERVER = 0x03,
	CT_GSSUBTYPE_LOCKSERVER = 0x04,
	CT_GSSUBTYPE_HBA_MGMTSERVER = 0x10,	/* for FDMI */
};

/*
 * defines for CT response code field
 */
enum {
	CT_RSP_REJECT = 0x8001,
	CT_RSP_ACCEPT = 0x8002,
};

/*
 * defintions for CT reason code
 */
enum {
	CT_RSN_INV_CMD		= 0x01,
	CT_RSN_INV_VER		= 0x02,
	CT_RSN_LOGIC_ERR	= 0x03,
	CT_RSN_INV_SIZE		= 0x04,
	CT_RSN_LOGICAL_BUSY	= 0x05,
	CT_RSN_PROTO_ERR	= 0x07,
	CT_RSN_UNABLE_TO_PERF	= 0x09,
	CT_RSN_NOT_SUPP		= 0x0B,
	CT_RSN_SERVER_NOT_AVBL  = 0x0D,
	CT_RSN_SESSION_COULD_NOT_BE_ESTBD = 0x0E,
	CT_RSN_VENDOR_SPECIFIC  = 0xFF,

};

/*
 * definitions for explanations code for Name server
 */
enum {
	CT_NS_EXP_NOADDITIONAL	= 0x00,
	CT_NS_EXP_ID_NOT_REG	= 0x01,
	CT_NS_EXP_PN_NOT_REG	= 0x02,
	CT_NS_EXP_NN_NOT_REG	= 0x03,
	CT_NS_EXP_CS_NOT_REG	= 0x04,
	CT_NS_EXP_IPN_NOT_REG	= 0x05,
	CT_NS_EXP_IPA_NOT_REG	= 0x06,
	CT_NS_EXP_FT_NOT_REG	= 0x07,
	CT_NS_EXP_SPN_NOT_REG	= 0x08,
	CT_NS_EXP_SNN_NOT_REG	= 0x09,
	CT_NS_EXP_PT_NOT_REG	= 0x0A,
	CT_NS_EXP_IPP_NOT_REG	= 0x0B,
	CT_NS_EXP_FPN_NOT_REG	= 0x0C,
	CT_NS_EXP_HA_NOT_REG	= 0x0D,
	CT_NS_EXP_FD_NOT_REG	= 0x0E,
	CT_NS_EXP_FF_NOT_REG	= 0x0F,
	CT_NS_EXP_ACCESSDENIED	= 0x10,
	CT_NS_EXP_UNACCEPTABLE_ID = 0x11,
	CT_NS_EXP_DATABASEEMPTY		= 0x12,
	CT_NS_EXP_NOT_REG_IN_SCOPE	= 0x13,
	CT_NS_EXP_DOM_ID_NOT_PRESENT	= 0x14,
	CT_NS_EXP_PORT_NUM_NOT_PRESENT	= 0x15,
	CT_NS_EXP_NO_DEVICE_ATTACHED	= 0x16
};

/*
 * defintions for the explanation code for all servers
 */
enum {
	CT_EXP_AUTH_EXCEPTION		= 0xF1,
	CT_EXP_DB_FULL			= 0xF2,
	CT_EXP_DB_EMPTY			= 0xF3,
	CT_EXP_PROCESSING_REQ		= 0xF4,
	CT_EXP_UNABLE_TO_VERIFY_CONN	= 0xF5,
	CT_EXP_DEVICES_NOT_IN_CMN_ZONE  = 0xF6
};

/*
 * Command codes for Name server
 */
enum {
	GS_GID_PN	= 0x0121,	/* Get Id on port name */
	GS_GPN_ID	= 0x0112,	/* Get port name on ID */
	GS_GNN_ID	= 0x0113,	/* Get node name on ID */
	GS_GID_FT	= 0x0171,	/* Get Id on FC4 type */
	GS_GSPN_ID	= 0x0118,	/* Get symbolic PN on ID */
	GS_RFT_ID	= 0x0217,	/* Register fc4type on ID */
	GS_RSPN_ID	= 0x0218,	/* Register symbolic PN on ID */
	GS_RPN_ID	= 0x0212,	/* Register port name */
	GS_RNN_ID	= 0x0213,	/* Register node name */
	GS_RCS_ID	= 0x0214,	/* Register class of service */
	GS_RPT_ID	= 0x021A,	/* Register port type */
	GS_GA_NXT	= 0x0100,	/* Get all next */
	GS_RFF_ID	= 0x021F,	/* Register FC4 Feature		*/
};

struct fcgs_id_req_s {
	u32 rsvd:8;
	u32 dap:24; /* port identifier */
};
#define fcgs_gpnid_req_t struct fcgs_id_req_s
#define fcgs_gnnid_req_t struct fcgs_id_req_s
#define fcgs_gspnid_req_t struct fcgs_id_req_s

struct fcgs_gidpn_req_s {
	wwn_t	port_name;	/* port wwn */
};

struct fcgs_gidpn_resp_s {
	u32	rsvd:8;
	u32	dap:24;		/* port identifier */
};

/*
 * RFT_ID
 */
struct fcgs_rftid_req_s {
	u32	rsvd:8;
	u32	dap:24;		/* port identifier */
	__be32	fc4_type[8];	/* fc4 types */
};

/*
 * RFF_ID : Register FC4 features.
 */
#define FC_GS_FCP_FC4_FEATURE_INITIATOR  0x02
#define FC_GS_FCP_FC4_FEATURE_TARGET	 0x01

struct fcgs_rffid_req_s {
	u32	rsvd:8;
	u32	dap:24;		/* port identifier */
	u32	rsvd1:16;
	u32	fc4ftr_bits:8;	/* fc4 feature bits */
	u32	fc4_type:8;		/* corresponding FC4 Type */
};

/*
 * GID_FT Request
 */
struct fcgs_gidft_req_s {
	u8	reserved;
	u8	domain_id;	/* domain, 0 - all fabric */
	u8	area_id;	/* area, 0 - whole domain */
	u8	fc4_type;	/* FC_TYPE_FCP for SCSI devices */
};

/*
 * GID_FT Response
 */
struct fcgs_gidft_resp_s {
	u8	last:1;		/* last port identifier flag */
	u8	reserved:7;
	u32	pid:24;		/* port identifier */
};

/*
 * RSPN_ID
 */
struct fcgs_rspnid_req_s {
	u32	rsvd:8;
	u32	dap:24;		/* port identifier */
	u8	spn_len;	/* symbolic port name length */
	u8	spn[256];	/* symbolic port name */
};

/*
 * RPN_ID
 */
struct fcgs_rpnid_req_s {
	u32	rsvd:8;
	u32	port_id:24;
	wwn_t	port_name;
};

/*
 * RNN_ID
 */
struct fcgs_rnnid_req_s {
	u32	rsvd:8;
	u32	port_id:24;
	wwn_t	node_name;
};

/*
 * RCS_ID
 */
struct fcgs_rcsid_req_s {
	u32	rsvd:8;
	u32	port_id:24;
	u32	cos;
};

/*
 * RPT_ID
 */
struct fcgs_rptid_req_s {
	u32	rsvd:8;
	u32	port_id:24;
	u32	port_type:8;
	u32	rsvd1:24;
};

/*
 * GA_NXT Request
 */
struct fcgs_ganxt_req_s {
	u32	rsvd:8;
	u32	port_id:24;
};

/*
 * GA_NXT Response
 */
struct fcgs_ganxt_rsp_s {
	u32		port_type:8;	/* Port Type */
	u32		port_id:24;	/* Port Identifier */
	wwn_t		port_name;	/* Port Name */
	u8		spn_len;	/* Length of Symbolic Port Name */
	char		spn[255];	/* Symbolic Port Name */
	wwn_t		node_name;	/* Node Name */
	u8		snn_len;	/* Length of Symbolic Node Name */
	char		snn[255];	/* Symbolic Node Name */
	u8		ipa[8];		/* Initial Process Associator */
	u8		ip[16];		/* IP Address */
	u32		cos;		/* Class of Service */
	u32		fc4types[8];	/* FC-4 TYPEs */
	wwn_t		fabric_port_name; /* Fabric Port Name */
	u32		rsvd:8;		/* Reserved */
	u32		hard_addr:24;	/* Hard Address */
};

/*
 * Command codes for Fabric Configuration Server
 */
enum {
	GS_FC_GFN_CMD	= 0x0114,	/* GS FC Get Fabric Name  */
	GS_FC_GMAL_CMD	= 0x0116,	/* GS FC GMAL  */
	GS_FC_TRACE_CMD	= 0x0400,	/* GS FC Trace Route */
	GS_FC_PING_CMD	= 0x0401,	/* GS FC Ping */
};

/*
 * GMAL Command ( Get ( interconnect Element) Management Address List)
 * To retrieve the IP Address of a Switch.
 */
#define CT_GMAL_RESP_PREFIX_TELNET	 "telnet://"
#define CT_GMAL_RESP_PREFIX_HTTP	 "http://"

/*  GMAL/GFN request */
struct fcgs_req_s {
	wwn_t    wwn;   /* PWWN/NWWN */
};

#define fcgs_gmal_req_t struct fcgs_req_s
#define fcgs_gfn_req_t struct fcgs_req_s

/* Accept Response to GMAL */
struct fcgs_gmal_resp_s {
	__be32	ms_len;   /* Num of entries */
	u8	ms_ma[256];
};

struct fcgs_gmal_entry_s {
	u8  len;
	u8  prefix[7]; /* like "http://" */
	u8  ip_addr[248];
};

/*
 * FDMI Command Codes
 */
#define	FDMI_GRHL		0x0100
#define	FDMI_GHAT		0x0101
#define	FDMI_GRPL		0x0102
#define	FDMI_GPAT		0x0110
#define	FDMI_RHBA		0x0200
#define	FDMI_RHAT		0x0201
#define	FDMI_RPRT		0x0210
#define	FDMI_RPA		0x0211
#define	FDMI_DHBA		0x0300
#define	FDMI_DPRT		0x0310

/*
 * FDMI reason codes
 */
#define	FDMI_NO_ADDITIONAL_EXP		0x00
#define	FDMI_HBA_ALREADY_REG		0x10
#define	FDMI_HBA_ATTRIB_NOT_REG		0x11
#define	FDMI_HBA_ATTRIB_MULTIPLE	0x12
#define	FDMI_HBA_ATTRIB_LENGTH_INVALID	0x13
#define	FDMI_HBA_ATTRIB_NOT_PRESENT	0x14
#define	FDMI_PORT_ORIG_NOT_IN_LIST	0x15
#define	FDMI_PORT_HBA_NOT_IN_LIST	0x16
#define	FDMI_PORT_ATTRIB_NOT_REG	0x20
#define	FDMI_PORT_NOT_REG		0x21
#define	FDMI_PORT_ATTRIB_MULTIPLE	0x22
#define	FDMI_PORT_ATTRIB_LENGTH_INVALID	0x23
#define	FDMI_PORT_ALREADY_REGISTEREED	0x24

/*
 * FDMI Transmission Speed Mask values
 */
#define	FDMI_TRANS_SPEED_1G		0x00000001
#define	FDMI_TRANS_SPEED_2G		0x00000002
#define	FDMI_TRANS_SPEED_10G		0x00000004
#define	FDMI_TRANS_SPEED_4G		0x00000008
#define	FDMI_TRANS_SPEED_8G		0x00000010
#define	FDMI_TRANS_SPEED_16G		0x00000020
#define	FDMI_TRANS_SPEED_UNKNOWN	0x00008000

/*
 * FDMI HBA attribute types
 */
enum fdmi_hba_attribute_type {
	FDMI_HBA_ATTRIB_NODENAME = 1,	/* 0x0001 */
	FDMI_HBA_ATTRIB_MANUFACTURER,	/* 0x0002 */
	FDMI_HBA_ATTRIB_SERIALNUM,	/* 0x0003 */
	FDMI_HBA_ATTRIB_MODEL,		/* 0x0004 */
	FDMI_HBA_ATTRIB_MODEL_DESC,	/* 0x0005 */
	FDMI_HBA_ATTRIB_HW_VERSION,	/* 0x0006 */
	FDMI_HBA_ATTRIB_DRIVER_VERSION,	/* 0x0007 */
	FDMI_HBA_ATTRIB_ROM_VERSION,	/* 0x0008 */
	FDMI_HBA_ATTRIB_FW_VERSION,	/* 0x0009 */
	FDMI_HBA_ATTRIB_OS_NAME,	/* 0x000A */
	FDMI_HBA_ATTRIB_MAX_CT,		/* 0x000B */

	FDMI_HBA_ATTRIB_MAX_TYPE
};

/*
 * FDMI Port attribute types
 */
enum fdmi_port_attribute_type {
	FDMI_PORT_ATTRIB_FC4_TYPES = 1,	/* 0x0001 */
	FDMI_PORT_ATTRIB_SUPP_SPEED,	/* 0x0002 */
	FDMI_PORT_ATTRIB_PORT_SPEED,	/* 0x0003 */
	FDMI_PORT_ATTRIB_FRAME_SIZE,	/* 0x0004 */
	FDMI_PORT_ATTRIB_DEV_NAME,	/* 0x0005 */
	FDMI_PORT_ATTRIB_HOST_NAME,	/* 0x0006 */

	FDMI_PORT_ATTR_MAX_TYPE
};

/*
 * FDMI attribute
 */
struct fdmi_attr_s {
	__be16        type;
	__be16        len;
	u8         value[1];
};

/*
 * HBA Attribute Block
 */
struct fdmi_hba_attr_s {
	__be32        attr_count;	/* # of attributes */
	struct fdmi_attr_s hba_attr;	/* n attributes */
};

/*
 * Registered Port List
 */
struct fdmi_port_list_s {
	__be32		num_ports;	/* number Of Port Entries */
	wwn_t		port_entry;	/* one or more */
};

/*
 * Port Attribute Block
 */
struct fdmi_port_attr_s {
	__be32        attr_count;	/* # of attributes */
	struct fdmi_attr_s port_attr;	/* n attributes */
};

/*
 * FDMI Register HBA Attributes
 */
struct fdmi_rhba_s {
	wwn_t			hba_id;		/* HBA Identifier */
	struct fdmi_port_list_s port_list;	/* Registered Port List */
	struct fdmi_hba_attr_s hba_attr_blk;	/* HBA attribute block */
};

/*
 * FDMI Register Port
 */
struct fdmi_rprt_s {
	wwn_t			hba_id;		/* HBA Identifier */
	wwn_t			port_name;	/* Port wwn */
	struct fdmi_port_attr_s port_attr_blk;	/* Port Attr Block */
};

/*
 * FDMI Register Port Attributes
 */
struct fdmi_rpa_s {
	wwn_t			port_name;	/* port wwn */
	struct fdmi_port_attr_s port_attr_blk;	/* Port Attr Block */
};

#pragma pack()

#endif	/* __BFA_FC_H__ */