aboutsummaryrefslogtreecommitdiff
path: root/drivers/scsi/megaraid/megaraid_sas.h
blob: e8f89264768109f69b075d83ce019f40f8967471 (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
/*
 *  Linux MegaRAID driver for SAS based RAID controllers
 *
 *  Copyright (c) 2009-2011  LSI Corporation.
 *
 *  This program is free software; you can redistribute it and/or
 *  modify it under the terms of the GNU General Public License
 *  as published by the Free Software Foundation; either version 2
 *  of the License, or (at your option) any later version.
 *
 *  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.
 *
 *  You should have received a copy of the GNU General Public License
 *  along with this program; if not, write to the Free Software
 *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
 *
 *  FILE: megaraid_sas.h
 *
 *  Authors: LSI Corporation
 *
 *  Send feedback to: <megaraidlinux@lsi.com>
 *
 *  Mail to: LSI Corporation, 1621 Barber Lane, Milpitas, CA 95035
 *     ATTN: Linuxraid
 */

#ifndef LSI_MEGARAID_SAS_H
#define LSI_MEGARAID_SAS_H

/*
 * MegaRAID SAS Driver meta data
 */
#define MEGASAS_VERSION				"00.00.06.15-rc1"
#define MEGASAS_RELDATE				"Mar. 19, 2012"
#define MEGASAS_EXT_VERSION			"Mon. Mar. 19 17:00:00 PDT 2012"

/*
 * Device IDs
 */
#define	PCI_DEVICE_ID_LSI_SAS1078R		0x0060
#define	PCI_DEVICE_ID_LSI_SAS1078DE		0x007C
#define	PCI_DEVICE_ID_LSI_VERDE_ZCR		0x0413
#define	PCI_DEVICE_ID_LSI_SAS1078GEN2		0x0078
#define	PCI_DEVICE_ID_LSI_SAS0079GEN2		0x0079
#define	PCI_DEVICE_ID_LSI_SAS0073SKINNY		0x0073
#define	PCI_DEVICE_ID_LSI_SAS0071SKINNY		0x0071
#define	PCI_DEVICE_ID_LSI_FUSION		0x005b
#define PCI_DEVICE_ID_LSI_INVADER		0x005d

/*
 * =====================================
 * MegaRAID SAS MFI firmware definitions
 * =====================================
 */

/*
 * MFI stands for  MegaRAID SAS FW Interface. This is just a moniker for 
 * protocol between the software and firmware. Commands are issued using
 * "message frames"
 */

/*
 * FW posts its state in upper 4 bits of outbound_msg_0 register
 */
#define MFI_STATE_MASK				0xF0000000
#define MFI_STATE_UNDEFINED			0x00000000
#define MFI_STATE_BB_INIT			0x10000000
#define MFI_STATE_FW_INIT			0x40000000
#define MFI_STATE_WAIT_HANDSHAKE		0x60000000
#define MFI_STATE_FW_INIT_2			0x70000000
#define MFI_STATE_DEVICE_SCAN			0x80000000
#define MFI_STATE_BOOT_MESSAGE_PENDING		0x90000000
#define MFI_STATE_FLUSH_CACHE			0xA0000000
#define MFI_STATE_READY				0xB0000000
#define MFI_STATE_OPERATIONAL			0xC0000000
#define MFI_STATE_FAULT				0xF0000000
#define MFI_RESET_REQUIRED			0x00000001
#define MFI_RESET_ADAPTER			0x00000002
#define MEGAMFI_FRAME_SIZE			64

/*
 * During FW init, clear pending cmds & reset state using inbound_msg_0
 *
 * ABORT	: Abort all pending cmds
 * READY	: Move from OPERATIONAL to READY state; discard queue info
 * MFIMODE	: Discard (possible) low MFA posted in 64-bit mode (??)
 * CLR_HANDSHAKE: FW is waiting for HANDSHAKE from BIOS or Driver
 * HOTPLUG	: Resume from Hotplug
 * MFI_STOP_ADP	: Send signal to FW to stop processing
 */
#define WRITE_SEQUENCE_OFFSET		(0x0000000FC) /* I20 */
#define HOST_DIAGNOSTIC_OFFSET		(0x000000F8)  /* I20 */
#define DIAG_WRITE_ENABLE			(0x00000080)
#define DIAG_RESET_ADAPTER			(0x00000004)

#define MFI_ADP_RESET				0x00000040
#define MFI_INIT_ABORT				0x00000001
#define MFI_INIT_READY				0x00000002
#define MFI_INIT_MFIMODE			0x00000004
#define MFI_INIT_CLEAR_HANDSHAKE		0x00000008
#define MFI_INIT_HOTPLUG			0x00000010
#define MFI_STOP_ADP				0x00000020
#define MFI_RESET_FLAGS				MFI_INIT_READY| \
						MFI_INIT_MFIMODE| \
						MFI_INIT_ABORT

/*
 * MFI frame flags
 */
#define MFI_FRAME_POST_IN_REPLY_QUEUE		0x0000
#define MFI_FRAME_DONT_POST_IN_REPLY_QUEUE	0x0001
#define MFI_FRAME_SGL32				0x0000
#define MFI_FRAME_SGL64				0x0002
#define MFI_FRAME_SENSE32			0x0000
#define MFI_FRAME_SENSE64			0x0004
#define MFI_FRAME_DIR_NONE			0x0000
#define MFI_FRAME_DIR_WRITE			0x0008
#define MFI_FRAME_DIR_READ			0x0010
#define MFI_FRAME_DIR_BOTH			0x0018
#define MFI_FRAME_IEEE                          0x0020

/*
 * Definition for cmd_status
 */
#define MFI_CMD_STATUS_POLL_MODE		0xFF

/*
 * MFI command opcodes
 */
#define MFI_CMD_INIT				0x00
#define MFI_CMD_LD_READ				0x01
#define MFI_CMD_LD_WRITE			0x02
#define MFI_CMD_LD_SCSI_IO			0x03
#define MFI_CMD_PD_SCSI_IO			0x04
#define MFI_CMD_DCMD				0x05
#define MFI_CMD_ABORT				0x06
#define MFI_CMD_SMP				0x07
#define MFI_CMD_STP				0x08
#define MFI_CMD_INVALID				0xff

#define MR_DCMD_CTRL_GET_INFO			0x01010000
#define MR_DCMD_LD_GET_LIST			0x03010000

#define MR_DCMD_CTRL_CACHE_FLUSH		0x01101000
#define MR_FLUSH_CTRL_CACHE			0x01
#define MR_FLUSH_DISK_CACHE			0x02

#define MR_DCMD_CTRL_SHUTDOWN			0x01050000
#define MR_DCMD_HIBERNATE_SHUTDOWN		0x01060000
#define MR_ENABLE_DRIVE_SPINDOWN		0x01

#define MR_DCMD_CTRL_EVENT_GET_INFO		0x01040100
#define MR_DCMD_CTRL_EVENT_GET			0x01040300
#define MR_DCMD_CTRL_EVENT_WAIT			0x01040500
#define MR_DCMD_LD_GET_PROPERTIES		0x03030000

#define MR_DCMD_CLUSTER				0x08000000
#define MR_DCMD_CLUSTER_RESET_ALL		0x08010100
#define MR_DCMD_CLUSTER_RESET_LD		0x08010200
#define MR_DCMD_PD_LIST_QUERY                   0x02010100

/*
 * MFI command completion codes
 */
enum MFI_STAT {
	MFI_STAT_OK = 0x00,
	MFI_STAT_INVALID_CMD = 0x01,
	MFI_STAT_INVALID_DCMD = 0x02,
	MFI_STAT_INVALID_PARAMETER = 0x03,
	MFI_STAT_INVALID_SEQUENCE_NUMBER = 0x04,
	MFI_STAT_ABORT_NOT_POSSIBLE = 0x05,
	MFI_STAT_APP_HOST_CODE_NOT_FOUND = 0x06,
	MFI_STAT_APP_IN_USE = 0x07,
	MFI_STAT_APP_NOT_INITIALIZED = 0x08,
	MFI_STAT_ARRAY_INDEX_INVALID = 0x09,
	MFI_STAT_ARRAY_ROW_NOT_EMPTY = 0x0a,
	MFI_STAT_CONFIG_RESOURCE_CONFLICT = 0x0b,
	MFI_STAT_DEVICE_NOT_FOUND = 0x0c,
	MFI_STAT_DRIVE_TOO_SMALL = 0x0d,
	MFI_STAT_FLASH_ALLOC_FAIL = 0x0e,
	MFI_STAT_FLASH_BUSY = 0x0f,
	MFI_STAT_FLASH_ERROR = 0x10,
	MFI_STAT_FLASH_IMAGE_BAD = 0x11,
	MFI_STAT_FLASH_IMAGE_INCOMPLETE = 0x12,
	MFI_STAT_FLASH_NOT_OPEN = 0x13,
	MFI_STAT_FLASH_NOT_STARTED = 0x14,
	MFI_STAT_FLUSH_FAILED = 0x15,
	MFI_STAT_HOST_CODE_NOT_FOUNT = 0x16,
	MFI_STAT_LD_CC_IN_PROGRESS = 0x17,
	MFI_STAT_LD_INIT_IN_PROGRESS = 0x18,
	MFI_STAT_LD_LBA_OUT_OF_RANGE = 0x19,
	MFI_STAT_LD_MAX_CONFIGURED = 0x1a,
	MFI_STAT_LD_NOT_OPTIMAL = 0x1b,
	MFI_STAT_LD_RBLD_IN_PROGRESS = 0x1c,
	MFI_STAT_LD_RECON_IN_PROGRESS = 0x1d,
	MFI_STAT_LD_WRONG_RAID_LEVEL = 0x1e,
	MFI_STAT_MAX_SPARES_EXCEEDED = 0x1f,
	MFI_STAT_MEMORY_NOT_AVAILABLE = 0x20,
	MFI_STAT_MFC_HW_ERROR = 0x21,
	MFI_STAT_NO_HW_PRESENT = 0x22,
	MFI_STAT_NOT_FOUND = 0x23,
	MFI_STAT_NOT_IN_ENCL = 0x24,
	MFI_STAT_PD_CLEAR_IN_PROGRESS = 0x25,
	MFI_STAT_PD_TYPE_WRONG = 0x26,
	MFI_STAT_PR_DISABLED = 0x27,
	MFI_STAT_ROW_INDEX_INVALID = 0x28,
	MFI_STAT_SAS_CONFIG_INVALID_ACTION = 0x29,
	MFI_STAT_SAS_CONFIG_INVALID_DATA = 0x2a,
	MFI_STAT_SAS_CONFIG_INVALID_PAGE = 0x2b,
	MFI_STAT_SAS_CONFIG_INVALID_TYPE = 0x2c,
	MFI_STAT_SCSI_DONE_WITH_ERROR = 0x2d,
	MFI_STAT_SCSI_IO_FAILED = 0x2e,
	MFI_STAT_SCSI_RESERVATION_CONFLICT = 0x2f,
	MFI_STAT_SHUTDOWN_FAILED = 0x30,
	MFI_STAT_TIME_NOT_SET = 0x31,
	MFI_STAT_WRONG_STATE = 0x32,
	MFI_STAT_LD_OFFLINE = 0x33,
	MFI_STAT_PEER_NOTIFICATION_REJECTED = 0x34,
	MFI_STAT_PEER_NOTIFICATION_FAILED = 0x35,
	MFI_STAT_RESERVATION_IN_PROGRESS = 0x36,
	MFI_STAT_I2C_ERRORS_DETECTED = 0x37,
	MFI_STAT_PCI_ERRORS_DETECTED = 0x38,
	MFI_STAT_CONFIG_SEQ_MISMATCH = 0x67,

	MFI_STAT_INVALID_STATUS = 0xFF
};

/*
 * Number of mailbox bytes in DCMD message frame
 */
#define MFI_MBOX_SIZE				12

enum MR_EVT_CLASS {

	MR_EVT_CLASS_DEBUG = -2,
	MR_EVT_CLASS_PROGRESS = -1,
	MR_EVT_CLASS_INFO = 0,
	MR_EVT_CLASS_WARNING = 1,
	MR_EVT_CLASS_CRITICAL = 2,
	MR_EVT_CLASS_FATAL = 3,
	MR_EVT_CLASS_DEAD = 4,

};

enum MR_EVT_LOCALE {

	MR_EVT_LOCALE_LD = 0x0001,
	MR_EVT_LOCALE_PD = 0x0002,
	MR_EVT_LOCALE_ENCL = 0x0004,
	MR_EVT_LOCALE_BBU = 0x0008,
	MR_EVT_LOCALE_SAS = 0x0010,
	MR_EVT_LOCALE_CTRL = 0x0020,
	MR_EVT_LOCALE_CONFIG = 0x0040,
	MR_EVT_LOCALE_CLUSTER = 0x0080,
	MR_EVT_LOCALE_ALL = 0xffff,

};

enum MR_EVT_ARGS {

	MR_EVT_ARGS_NONE,
	MR_EVT_ARGS_CDB_SENSE,
	MR_EVT_ARGS_LD,
	MR_EVT_ARGS_LD_COUNT,
	MR_EVT_ARGS_LD_LBA,
	MR_EVT_ARGS_LD_OWNER,
	MR_EVT_ARGS_LD_LBA_PD_LBA,
	MR_EVT_ARGS_LD_PROG,
	MR_EVT_ARGS_LD_STATE,
	MR_EVT_ARGS_LD_STRIP,
	MR_EVT_ARGS_PD,
	MR_EVT_ARGS_PD_ERR,
	MR_EVT_ARGS_PD_LBA,
	MR_EVT_ARGS_PD_LBA_LD,
	MR_EVT_ARGS_PD_PROG,
	MR_EVT_ARGS_PD_STATE,
	MR_EVT_ARGS_PCI,
	MR_EVT_ARGS_RATE,
	MR_EVT_ARGS_STR,
	MR_EVT_ARGS_TIME,
	MR_EVT_ARGS_ECC,
	MR_EVT_ARGS_LD_PROP,
	MR_EVT_ARGS_PD_SPARE,
	MR_EVT_ARGS_PD_INDEX,
	MR_EVT_ARGS_DIAG_PASS,
	MR_EVT_ARGS_DIAG_FAIL,
	MR_EVT_ARGS_PD_LBA_LBA,
	MR_EVT_ARGS_PORT_PHY,
	MR_EVT_ARGS_PD_MISSING,
	MR_EVT_ARGS_PD_ADDRESS,
	MR_EVT_ARGS_BITMAP,
	MR_EVT_ARGS_CONNECTOR,
	MR_EVT_ARGS_PD_PD,
	MR_EVT_ARGS_PD_FRU,
	MR_EVT_ARGS_PD_PATHINFO,
	MR_EVT_ARGS_PD_POWER_STATE,
	MR_EVT_ARGS_GENERIC,
};

/*
 * define constants for device list query options
 */
enum MR_PD_QUERY_TYPE {
	MR_PD_QUERY_TYPE_ALL                = 0,
	MR_PD_QUERY_TYPE_STATE              = 1,
	MR_PD_QUERY_TYPE_POWER_STATE        = 2,
	MR_PD_QUERY_TYPE_MEDIA_TYPE         = 3,
	MR_PD_QUERY_TYPE_SPEED              = 4,
	MR_PD_QUERY_TYPE_EXPOSED_TO_HOST    = 5,
};

#define MR_EVT_CFG_CLEARED                              0x0004
#define MR_EVT_LD_STATE_CHANGE                          0x0051
#define MR_EVT_PD_INSERTED                              0x005b
#define MR_EVT_PD_REMOVED                               0x0070
#define MR_EVT_LD_CREATED                               0x008a
#define MR_EVT_LD_DELETED                               0x008b
#define MR_EVT_FOREIGN_CFG_IMPORTED                     0x00db
#define MR_EVT_LD_OFFLINE                               0x00fc
#define MR_EVT_CTRL_HOST_BUS_SCAN_REQUESTED             0x0152
#define MAX_LOGICAL_DRIVES				64

enum MR_PD_STATE {
	MR_PD_STATE_UNCONFIGURED_GOOD   = 0x00,
	MR_PD_STATE_UNCONFIGURED_BAD    = 0x01,
	MR_PD_STATE_HOT_SPARE           = 0x02,
	MR_PD_STATE_OFFLINE             = 0x10,
	MR_PD_STATE_FAILED              = 0x11,
	MR_PD_STATE_REBUILD             = 0x14,
	MR_PD_STATE_ONLINE              = 0x18,
	MR_PD_STATE_COPYBACK            = 0x20,
	MR_PD_STATE_SYSTEM              = 0x40,
 };


 /*
 * defines the physical drive address structure
 */
struct MR_PD_ADDRESS {
	u16     deviceId;
	u16     enclDeviceId;

	union {
		struct {
			u8  enclIndex;
			u8  slotNumber;
		} mrPdAddress;
		struct {
			u8  enclPosition;
			u8  enclConnectorIndex;
		} mrEnclAddress;
	};
	u8      scsiDevType;
	union {
		u8      connectedPortBitmap;
		u8      connectedPortNumbers;
	};
	u64     sasAddr[2];
} __packed;

/*
 * defines the physical drive list structure
 */
struct MR_PD_LIST {
	u32             size;
	u32             count;
	struct MR_PD_ADDRESS   addr[1];
} __packed;

struct megasas_pd_list {
	u16             tid;
	u8             driveType;
	u8             driveState;
} __packed;

 /*
 * defines the logical drive reference structure
 */
union  MR_LD_REF {
	struct {
		u8      targetId;
		u8      reserved;
		u16     seqNum;
	};
	u32     ref;
} __packed;

/*
 * defines the logical drive list structure
 */
struct MR_LD_LIST {
	u32     ldCount;
	u32     reserved;
	struct {
		union MR_LD_REF   ref;
		u8          state;
		u8          reserved[3];
		u64         size;
	} ldList[MAX_LOGICAL_DRIVES];
} __packed;

/*
 * SAS controller properties
 */
struct megasas_ctrl_prop {

	u16 seq_num;
	u16 pred_fail_poll_interval;
	u16 intr_throttle_count;
	u16 intr_throttle_timeouts;
	u8 rebuild_rate;
	u8 patrol_read_rate;
	u8 bgi_rate;
	u8 cc_rate;
	u8 recon_rate;
	u8 cache_flush_interval;
	u8 spinup_drv_count;
	u8 spinup_delay;
	u8 cluster_enable;
	u8 coercion_mode;
	u8 alarm_enable;
	u8 disable_auto_rebuild;
	u8 disable_battery_warn;
	u8 ecc_bucket_size;
	u16 ecc_bucket_leak_rate;
	u8 restore_hotspare_on_insertion;
	u8 expose_encl_devices;
	u8 maintainPdFailHistory;
	u8 disallowHostRequestReordering;
	u8 abortCCOnError;
	u8 loadBalanceMode;
	u8 disableAutoDetectBackplane;

	u8 snapVDSpace;

	/*
	* Add properties that can be controlled by
	* a bit in the following structure.
	*/
	struct {
		u32     copyBackDisabled            : 1;
		u32     SMARTerEnabled              : 1;
		u32     prCorrectUnconfiguredAreas  : 1;
		u32     useFdeOnly                  : 1;
		u32     disableNCQ                  : 1;
		u32     SSDSMARTerEnabled           : 1;
		u32     SSDPatrolReadEnabled        : 1;
		u32     enableSpinDownUnconfigured  : 1;
		u32     autoEnhancedImport          : 1;
		u32     enableSecretKeyControl      : 1;
		u32     disableOnlineCtrlReset      : 1;
		u32     allowBootWithPinnedCache    : 1;
		u32     disableSpinDownHS           : 1;
		u32     enableJBOD                  : 1;
		u32     reserved                    :18;
	} OnOffProperties;
	u8 autoSnapVDSpace;
	u8 viewSpace;
	u16 spinDownTime;
	u8  reserved[24];
} __packed;

/*
 * SAS controller information
 */
struct megasas_ctrl_info {

	/*
	 * PCI device information
	 */
	struct {

		u16 vendor_id;
		u16 device_id;
		u16 sub_vendor_id;
		u16 sub_device_id;
		u8 reserved[24];

	} __attribute__ ((packed)) pci;

	/*
	 * Host interface information
	 */
	struct {

		u8 PCIX:1;
		u8 PCIE:1;
		u8 iSCSI:1;
		u8 SAS_3G:1;
		u8 reserved_0:4;
		u8 reserved_1[6];
		u8 port_count;
		u64 port_addr[8];

	} __attribute__ ((packed)) host_interface;

	/*
	 * Device (backend) interface information
	 */
	struct {

		u8 SPI:1;
		u8 SAS_3G:1;
		u8 SATA_1_5G:1;
		u8 SATA_3G:1;
		u8 reserved_0:4;
		u8 reserved_1[6];
		u8 port_count;
		u64 port_addr[8];

	} __attribute__ ((packed)) device_interface;

	/*
	 * List of components residing in flash. All str are null terminated
	 */
	u32 image_check_word;
	u32 image_component_count;

	struct {

		char name[8];
		char version[32];
		char build_date[16];
		char built_time[16];

	} __attribute__ ((packed)) image_component[8];

	/*
	 * List of flash components that have been flashed on the card, but
	 * are not in use, pending reset of the adapter. This list will be
	 * empty if a flash operation has not occurred. All stings are null
	 * terminated
	 */
	u32 pending_image_component_count;

	struct {

		char name[8];
		char version[32];
		char build_date[16];
		char build_time[16];

	} __attribute__ ((packed)) pending_image_component[8];

	u8 max_arms;
	u8 max_spans;
	u8 max_arrays;
	u8 max_lds;

	char product_name[80];
	char serial_no[32];

	/*
	 * Other physical/controller/operation information. Indicates the
	 * presence of the hardware
	 */
	struct {

		u32 bbu:1;
		u32 alarm:1;
		u32 nvram:1;
		u32 uart:1;
		u32 reserved:28;

	} __attribute__ ((packed)) hw_present;

	u32 current_fw_time;

	/*
	 * Maximum data transfer sizes
	 */
	u16 max_concurrent_cmds;
	u16 max_sge_count;
	u32 max_request_size;

	/*
	 * Logical and physical device counts
	 */
	u16 ld_present_count;
	u16 ld_degraded_count;
	u16 ld_offline_count;

	u16 pd_present_count;
	u16 pd_disk_present_count;
	u16 pd_disk_pred_failure_count;
	u16 pd_disk_failed_count;

	/*
	 * Memory size information
	 */
	u16 nvram_size;
	u16 memory_size;
	u16 flash_size;

	/*
	 * Error counters
	 */
	u16 mem_correctable_error_count;
	u16 mem_uncorrectable_error_count;

	/*
	 * Cluster information
	 */
	u8 cluster_permitted;
	u8 cluster_active;

	/*
	 * Additional max data transfer sizes
	 */
	u16 max_strips_per_io;

	/*
	 * Controller capabilities structures
	 */
	struct {

		u32 raid_level_0:1;
		u32 raid_level_1:1;
		u32 raid_level_5:1;
		u32 raid_level_1E:1;
		u32 raid_level_6:1;
		u32 reserved:27;

	} __attribute__ ((packed)) raid_levels;

	struct {

		u32 rbld_rate:1;
		u32 cc_rate:1;
		u32 bgi_rate:1;
		u32 recon_rate:1;
		u32 patrol_rate:1;
		u32 alarm_control:1;
		u32 cluster_supported:1;
		u32 bbu:1;
		u32 spanning_allowed:1;
		u32 dedicated_hotspares:1;
		u32 revertible_hotspares:1;
		u32 foreign_config_import:1;
		u32 self_diagnostic:1;
		u32 mixed_redundancy_arr:1;
		u32 global_hot_spares:1;
		u32 reserved:17;

	} __attribute__ ((packed)) adapter_operations;

	struct {

		u32 read_policy:1;
		u32 write_policy:1;
		u32 io_policy:1;
		u32 access_policy:1;
		u32 disk_cache_policy:1;
		u32 reserved:27;

	} __attribute__ ((packed)) ld_operations;

	struct {

		u8 min;
		u8 max;
		u8 reserved[2];

	} __attribute__ ((packed)) stripe_sz_ops;

	struct {

		u32 force_online:1;
		u32 force_offline:1;
		u32 force_rebuild:1;
		u32 reserved:29;

	} __attribute__ ((packed)) pd_operations;

	struct {

		u32 ctrl_supports_sas:1;
		u32 ctrl_supports_sata:1;
		u32 allow_mix_in_encl:1;
		u32 allow_mix_in_ld:1;
		u32 allow_sata_in_cluster:1;
		u32 reserved:27;

	} __attribute__ ((packed)) pd_mix_support;

	/*
	 * Define ECC single-bit-error bucket information
	 */
	u8 ecc_bucket_count;
	u8 reserved_2[11];

	/*
	 * Include the controller properties (changeable items)
	 */
	struct megasas_ctrl_prop properties;

	/*
	 * Define FW pkg version (set in envt v'bles on OEM basis)
	 */
	char package_version[0x60];

	u8 pad[0x800 - 0x6a0];

} __packed;

/*
 * ===============================
 * MegaRAID SAS driver definitions
 * ===============================
 */
#define MEGASAS_MAX_PD_CHANNELS			2
#define MEGASAS_MAX_LD_CHANNELS			2
#define MEGASAS_MAX_CHANNELS			(MEGASAS_MAX_PD_CHANNELS + \
						MEGASAS_MAX_LD_CHANNELS)
#define MEGASAS_MAX_DEV_PER_CHANNEL		128
#define MEGASAS_DEFAULT_INIT_ID			-1
#define MEGASAS_MAX_LUN				8
#define MEGASAS_MAX_LD				64
#define MEGASAS_DEFAULT_CMD_PER_LUN		256
#define MEGASAS_MAX_PD                          (MEGASAS_MAX_PD_CHANNELS * \
						MEGASAS_MAX_DEV_PER_CHANNEL)
#define MEGASAS_MAX_LD_IDS			(MEGASAS_MAX_LD_CHANNELS * \
						MEGASAS_MAX_DEV_PER_CHANNEL)

#define MEGASAS_MAX_SECTORS                    (2*1024)
#define MEGASAS_MAX_SECTORS_IEEE		(2*128)
#define MEGASAS_DBG_LVL				1

#define MEGASAS_FW_BUSY				1

/* Frame Type */
#define IO_FRAME				0
#define PTHRU_FRAME				1

/*
 * When SCSI mid-layer calls driver's reset routine, driver waits for
 * MEGASAS_RESET_WAIT_TIME seconds for all outstanding IO to complete. Note
 * that the driver cannot _actually_ abort or reset pending commands. While
 * it is waiting for the commands to complete, it prints a diagnostic message
 * every MEGASAS_RESET_NOTICE_INTERVAL seconds
 */
#define MEGASAS_RESET_WAIT_TIME			180
#define MEGASAS_INTERNAL_CMD_WAIT_TIME		180
#define	MEGASAS_RESET_NOTICE_INTERVAL		5
#define MEGASAS_IOCTL_CMD			0
#define MEGASAS_DEFAULT_CMD_TIMEOUT		90

/*
 * FW reports the maximum of number of commands that it can accept (maximum
 * commands that can be outstanding) at any time. The driver must report a
 * lower number to the mid layer because it can issue a few internal commands
 * itself (E.g, AEN, abort cmd, IOCTLs etc). The number of commands it needs
 * is shown below
 */
#define MEGASAS_INT_CMDS			32
#define MEGASAS_SKINNY_INT_CMDS			5

#define MEGASAS_MAX_MSIX_QUEUES			16
/*
 * FW can accept both 32 and 64 bit SGLs. We want to allocate 32/64 bit
 * SGLs based on the size of dma_addr_t
 */
#define IS_DMA64				(sizeof(dma_addr_t) == 8)

#define MFI_XSCALE_OMR0_CHANGE_INTERRUPT		0x00000001

#define MFI_INTR_FLAG_REPLY_MESSAGE			0x00000001
#define MFI_INTR_FLAG_FIRMWARE_STATE_CHANGE		0x00000002
#define MFI_G2_OUTBOUND_DOORBELL_CHANGE_INTERRUPT	0x00000004

#define MFI_OB_INTR_STATUS_MASK			0x00000002
#define MFI_POLL_TIMEOUT_SECS			60

#define MFI_REPLY_1078_MESSAGE_INTERRUPT	0x80000000
#define MFI_REPLY_GEN2_MESSAGE_INTERRUPT	0x00000001
#define MFI_GEN2_ENABLE_INTERRUPT_MASK		(0x00000001 | 0x00000004)
#define MFI_REPLY_SKINNY_MESSAGE_INTERRUPT	0x40000000
#define MFI_SKINNY_ENABLE_INTERRUPT_MASK	(0x00000001)

#define MFI_1068_PCSR_OFFSET			0x84
#define MFI_1068_FW_HANDSHAKE_OFFSET		0x64
#define MFI_1068_FW_READY			0xDDDD0000
/*
* register set for both 1068 and 1078 controllers
* structure extended for 1078 registers
*/
 
struct megasas_register_set {
	u32	doorbell;                       /*0000h*/
	u32	fusion_seq_offset;		/*0004h*/
	u32	fusion_host_diag;		/*0008h*/
	u32	reserved_01;			/*000Ch*/

	u32 	inbound_msg_0;			/*0010h*/
	u32 	inbound_msg_1;			/*0014h*/
	u32 	outbound_msg_0;			/*0018h*/
	u32 	outbound_msg_1;			/*001Ch*/

	u32 	inbound_doorbell;		/*0020h*/
	u32 	inbound_intr_status;		/*0024h*/
	u32 	inbound_intr_mask;		/*0028h*/

	u32 	outbound_doorbell;		/*002Ch*/
	u32 	outbound_intr_status;		/*0030h*/
	u32 	outbound_intr_mask;		/*0034h*/

	u32 	reserved_1[2];			/*0038h*/

	u32 	inbound_queue_port;		/*0040h*/
	u32 	outbound_queue_port;		/*0044h*/

	u32	reserved_2[9];			/*0048h*/
	u32	reply_post_host_index;		/*006Ch*/
	u32	reserved_2_2[12];		/*0070h*/

	u32 	outbound_doorbell_clear;	/*00A0h*/

	u32 	reserved_3[3];			/*00A4h*/

	u32 	outbound_scratch_pad ;		/*00B0h*/
	u32	outbound_scratch_pad_2;         /*00B4h*/

	u32	reserved_4[2];			/*00B8h*/

	u32 	inbound_low_queue_port ;	/*00C0h*/

	u32 	inbound_high_queue_port ;	/*00C4h*/

	u32 	reserved_5;			/*00C8h*/
	u32	res_6[11];			/*CCh*/
	u32	host_diag;
	u32	seq_offset;
	u32 	index_registers[807];		/*00CCh*/
} __attribute__ ((packed));

struct megasas_sge32 {

	u32 phys_addr;
	u32 length;

} __attribute__ ((packed));

struct megasas_sge64 {

	u64 phys_addr;
	u32 length;

} __attribute__ ((packed));

struct megasas_sge_skinny {
	u64 phys_addr;
	u32 length;
	u32 flag;
} __packed;

union megasas_sgl {

	struct megasas_sge32 sge32[1];
	struct megasas_sge64 sge64[1];
	struct megasas_sge_skinny sge_skinny[1];

} __attribute__ ((packed));

struct megasas_header {

	u8 cmd;			/*00h */
	u8 sense_len;		/*01h */
	u8 cmd_status;		/*02h */
	u8 scsi_status;		/*03h */

	u8 target_id;		/*04h */
	u8 lun;			/*05h */
	u8 cdb_len;		/*06h */
	u8 sge_count;		/*07h */

	u32 context;		/*08h */
	u32 pad_0;		/*0Ch */

	u16 flags;		/*10h */
	u16 timeout;		/*12h */
	u32 data_xferlen;	/*14h */

} __attribute__ ((packed));

union megasas_sgl_frame {

	struct megasas_sge32 sge32[8];
	struct megasas_sge64 sge64[5];

} __attribute__ ((packed));

struct megasas_init_frame {

	u8 cmd;			/*00h */
	u8 reserved_0;		/*01h */
	u8 cmd_status;		/*02h */

	u8 reserved_1;		/*03h */
	u32 reserved_2;		/*04h */

	u32 context;		/*08h */
	u32 pad_0;		/*0Ch */

	u16 flags;		/*10h */
	u16 reserved_3;		/*12h */
	u32 data_xfer_len;	/*14h */

	u32 queue_info_new_phys_addr_lo;	/*18h */
	u32 queue_info_new_phys_addr_hi;	/*1Ch */
	u32 queue_info_old_phys_addr_lo;	/*20h */
	u32 queue_info_old_phys_addr_hi;	/*24h */

	u32 reserved_4[6];	/*28h */

} __attribute__ ((packed));

struct megasas_init_queue_info {

	u32 init_flags;		/*00h */
	u32 reply_queue_entries;	/*04h */

	u32 reply_queue_start_phys_addr_lo;	/*08h */
	u32 reply_queue_start_phys_addr_hi;	/*0Ch */
	u32 producer_index_phys_addr_lo;	/*10h */
	u32 producer_index_phys_addr_hi;	/*14h */
	u32 consumer_index_phys_addr_lo;	/*18h */
	u32 consumer_index_phys_addr_hi;	/*1Ch */

} __attribute__ ((packed));

struct megasas_io_frame {

	u8 cmd;			/*00h */
	u8 sense_len;		/*01h */
	u8 cmd_status;		/*02h */
	u8 scsi_status;		/*03h */

	u8 target_id;		/*04h */
	u8 access_byte;		/*05h */
	u8 reserved_0;		/*06h */
	u8 sge_count;		/*07h */

	u32 context;		/*08h */
	u32 pad_0;		/*0Ch */

	u16 flags;		/*10h */
	u16 timeout;		/*12h */
	u32 lba_count;		/*14h */

	u32 sense_buf_phys_addr_lo;	/*18h */
	u32 sense_buf_phys_addr_hi;	/*1Ch */

	u32 start_lba_lo;	/*20h */
	u32 start_lba_hi;	/*24h */

	union megasas_sgl sgl;	/*28h */

} __attribute__ ((packed));

struct megasas_pthru_frame {

	u8 cmd;			/*00h */
	u8 sense_len;		/*01h */
	u8 cmd_status;		/*02h */
	u8 scsi_status;		/*03h */

	u8 target_id;		/*04h */
	u8 lun;			/*05h */
	u8 cdb_len;		/*06h */
	u8 sge_count;		/*07h */

	u32 context;		/*08h */
	u32 pad_0;		/*0Ch */

	u16 flags;		/*10h */
	u16 timeout;		/*12h */
	u32 data_xfer_len;	/*14h */

	u32 sense_buf_phys_addr_lo;	/*18h */
	u32 sense_buf_phys_addr_hi;	/*1Ch */

	u8 cdb[16];		/*20h */
	union megasas_sgl sgl;	/*30h */

} __attribute__ ((packed));

struct megasas_dcmd_frame {

	u8 cmd;			/*00h */
	u8 reserved_0;		/*01h */
	u8 cmd_status;		/*02h */
	u8 reserved_1[4];	/*03h */
	u8 sge_count;		/*07h */

	u32 context;		/*08h */
	u32 pad_0;		/*0Ch */

	u16 flags;		/*10h */
	u16 timeout;		/*12h */

	u32 data_xfer_len;	/*14h */
	u32 opcode;		/*18h */

	union {			/*1Ch */
		u8 b[12];
		u16 s[6];
		u32 w[3];
	} mbox;

	union megasas_sgl sgl;	/*28h */

} __attribute__ ((packed));

struct megasas_abort_frame {

	u8 cmd;			/*00h */
	u8 reserved_0;		/*01h */
	u8 cmd_status;		/*02h */

	u8 reserved_1;		/*03h */
	u32 reserved_2;		/*04h */

	u32 context;		/*08h */
	u32 pad_0;		/*0Ch */

	u16 flags;		/*10h */
	u16 reserved_3;		/*12h */
	u32 reserved_4;		/*14h */

	u32 abort_context;	/*18h */
	u32 pad_1;		/*1Ch */

	u32 abort_mfi_phys_addr_lo;	/*20h */
	u32 abort_mfi_phys_addr_hi;	/*24h */

	u32 reserved_5[6];	/*28h */

} __attribute__ ((packed));

struct megasas_smp_frame {

	u8 cmd;			/*00h */
	u8 reserved_1;		/*01h */
	u8 cmd_status;		/*02h */
	u8 connection_status;	/*03h */

	u8 reserved_2[3];	/*04h */
	u8 sge_count;		/*07h */

	u32 context;		/*08h */
	u32 pad_0;		/*0Ch */

	u16 flags;		/*10h */
	u16 timeout;		/*12h */

	u32 data_xfer_len;	/*14h */
	u64 sas_addr;		/*18h */

	union {
		struct megasas_sge32 sge32[2];	/* [0]: resp [1]: req */
		struct megasas_sge64 sge64[2];	/* [0]: resp [1]: req */
	} sgl;

} __attribute__ ((packed));

struct megasas_stp_frame {

	u8 cmd;			/*00h */
	u8 reserved_1;		/*01h */
	u8 cmd_status;		/*02h */
	u8 reserved_2;		/*03h */

	u8 target_id;		/*04h */
	u8 reserved_3[2];	/*05h */
	u8 sge_count;		/*07h */

	u32 context;		/*08h */
	u32 pad_0;		/*0Ch */

	u16 flags;		/*10h */
	u16 timeout;		/*12h */

	u32 data_xfer_len;	/*14h */

	u16 fis[10];		/*18h */
	u32 stp_flags;

	union {
		struct megasas_sge32 sge32[2];	/* [0]: resp [1]: data */
		struct megasas_sge64 sge64[2];	/* [0]: resp [1]: data */
	} sgl;

} __attribute__ ((packed));

union megasas_frame {

	struct megasas_header hdr;
	struct megasas_init_frame init;
	struct megasas_io_frame io;
	struct megasas_pthru_frame pthru;
	struct megasas_dcmd_frame dcmd;
	struct megasas_abort_frame abort;
	struct megasas_smp_frame smp;
	struct megasas_stp_frame stp;

	u8 raw_bytes[64];
};

struct megasas_cmd;

union megasas_evt_class_locale {

	struct {
		u16 locale;
		u8 reserved;
		s8 class;
	} __attribute__ ((packed)) members;

	u32 word;

} __attribute__ ((packed));

struct megasas_evt_log_info {
	u32 newest_seq_num;
	u32 oldest_seq_num;
	u32 clear_seq_num;
	u32 shutdown_seq_num;
	u32 boot_seq_num;

} __attribute__ ((packed));

struct megasas_progress {

	u16 progress;
	u16 elapsed_seconds;

} __attribute__ ((packed));

struct megasas_evtarg_ld {

	u16 target_id;
	u8 ld_index;
	u8 reserved;

} __attribute__ ((packed));

struct megasas_evtarg_pd {
	u16 device_id;
	u8 encl_index;
	u8 slot_number;

} __attribute__ ((packed));

struct megasas_evt_detail {

	u32 seq_num;
	u32 time_stamp;
	u32 code;
	union megasas_evt_class_locale cl;
	u8 arg_type;
	u8 reserved1[15];

	union {
		struct {
			struct megasas_evtarg_pd pd;
			u8 cdb_length;
			u8 sense_length;
			u8 reserved[2];
			u8 cdb[16];
			u8 sense[64];
		} __attribute__ ((packed)) cdbSense;

		struct megasas_evtarg_ld ld;

		struct {
			struct megasas_evtarg_ld ld;
			u64 count;
		} __attribute__ ((packed)) ld_count;

		struct {
			u64 lba;
			struct megasas_evtarg_ld ld;
		} __attribute__ ((packed)) ld_lba;

		struct {
			struct megasas_evtarg_ld ld;
			u32 prevOwner;
			u32 newOwner;
		} __attribute__ ((packed)) ld_owner;

		struct {
			u64 ld_lba;
			u64 pd_lba;
			struct megasas_evtarg_ld ld;
			struct megasas_evtarg_pd pd;
		} __attribute__ ((packed)) ld_lba_pd_lba;

		struct {
			struct megasas_evtarg_ld ld;
			struct megasas_progress prog;
		} __attribute__ ((packed)) ld_prog;

		struct {
			struct megasas_evtarg_ld ld;
			u32 prev_state;
			u32 new_state;
		} __attribute__ ((packed)) ld_state;

		struct {
			u64 strip;
			struct megasas_evtarg_ld ld;
		} __attribute__ ((packed)) ld_strip;

		struct megasas_evtarg_pd pd;

		struct {
			struct megasas_evtarg_pd pd;
			u32 err;
		} __attribute__ ((packed)) pd_err;

		struct {
			u64 lba;
			struct megasas_evtarg_pd pd;
		} __attribute__ ((packed)) pd_lba;

		struct {
			u64 lba;
			struct megasas_evtarg_pd pd;
			struct megasas_evtarg_ld ld;
		} __attribute__ ((packed)) pd_lba_ld;

		struct {
			struct megasas_evtarg_pd pd;
			struct megasas_progress prog;
		} __attribute__ ((packed)) pd_prog;

		struct {
			struct megasas_evtarg_pd pd;
			u32 prevState;
			u32 newState;
		} __attribute__ ((packed)) pd_state;

		struct {
			u16 vendorId;
			u16 deviceId;
			u16 subVendorId;
			u16 subDeviceId;
		} __attribute__ ((packed)) pci;

		u32 rate;
		char str[96];

		struct {
			u32 rtc;
			u32 elapsedSeconds;
		} __attribute__ ((packed)) time;

		struct {
			u32 ecar;
			u32 elog;
			char str[64];
		} __attribute__ ((packed)) ecc;

		u8 b[96];
		u16 s[48];
		u32 w[24];
		u64 d[12];
	} args;

	char description[128];

} __attribute__ ((packed));

struct megasas_aen_event {
	struct work_struct hotplug_work;
	struct megasas_instance *instance;
};

struct megasas_irq_context {
	struct megasas_instance *instance;
	u32 MSIxIndex;
};

struct megasas_instance {

	u32 *producer;
	dma_addr_t producer_h;
	u32 *consumer;
	dma_addr_t consumer_h;

	u32 *reply_queue;
	dma_addr_t reply_queue_h;

	unsigned long base_addr;
	struct megasas_register_set __iomem *reg_set;

	struct megasas_pd_list          pd_list[MEGASAS_MAX_PD];
	u8     ld_ids[MEGASAS_MAX_LD_IDS];
	s8 init_id;

	u16 max_num_sge;
	u16 max_fw_cmds;
	/* For Fusion its num IOCTL cmds, for others MFI based its
	   max_fw_cmds */
	u16 max_mfi_cmds;
	u32 max_sectors_per_req;
	struct megasas_aen_event *ev;

	struct megasas_cmd **cmd_list;
	struct list_head cmd_pool;
	/* used to sync fire the cmd to fw */
	spinlock_t cmd_pool_lock;
	/* used to sync fire the cmd to fw */
	spinlock_t hba_lock;
	/* used to synch producer, consumer ptrs in dpc */
	spinlock_t completion_lock;
	struct dma_pool *frame_dma_pool;
	struct dma_pool *sense_dma_pool;

	struct megasas_evt_detail *evt_detail;
	dma_addr_t evt_detail_h;
	struct megasas_cmd *aen_cmd;
	struct mutex aen_mutex;
	struct semaphore ioctl_sem;

	struct Scsi_Host *host;

	wait_queue_head_t int_cmd_wait_q;
	wait_queue_head_t abort_cmd_wait_q;

	struct pci_dev *pdev;
	u32 unique_id;
	u32 fw_support_ieee;

	atomic_t fw_outstanding;
	atomic_t fw_reset_no_pci_access;

	struct megasas_instance_template *instancet;
	struct tasklet_struct isr_tasklet;
	struct work_struct work_init;

	u8 flag;
	u8 unload;
	u8 flag_ieee;
	u8 issuepend_done;
	u8 disableOnlineCtrlReset;
	u8 adprecovery;
	unsigned long last_time;
	u32 mfiStatus;
	u32 last_seq_num;

	struct list_head internal_reset_pending_q;

	/* Ptr to hba specific information */
	void *ctrl_context;
	unsigned int msix_vectors;
	struct msix_entry msixentry[MEGASAS_MAX_MSIX_QUEUES];
	struct megasas_irq_context irq_context[MEGASAS_MAX_MSIX_QUEUES];
	u64 map_id;
	struct megasas_cmd *map_update_cmd;
	unsigned long bar;
	long reset_flags;
	struct mutex reset_mutex;
};

enum {
	MEGASAS_HBA_OPERATIONAL			= 0,
	MEGASAS_ADPRESET_SM_INFAULT		= 1,
	MEGASAS_ADPRESET_SM_FW_RESET_SUCCESS	= 2,
	MEGASAS_ADPRESET_SM_OPERATIONAL		= 3,
	MEGASAS_HW_CRITICAL_ERROR		= 4,
	MEGASAS_ADPRESET_INPROG_SIGN		= 0xDEADDEAD,
};

struct megasas_instance_template {
	void (*fire_cmd)(struct megasas_instance *, dma_addr_t, \
		u32, struct megasas_register_set __iomem *);

	void (*enable_intr)(struct megasas_register_set __iomem *) ;
	void (*disable_intr)(struct megasas_register_set __iomem *);

	int (*clear_intr)(struct megasas_register_set __iomem *);

	u32 (*read_fw_status_reg)(struct megasas_register_set __iomem *);
	int (*adp_reset)(struct megasas_instance *, \
		struct megasas_register_set __iomem *);
	int (*check_reset)(struct megasas_instance *, \
		struct megasas_register_set __iomem *);
	irqreturn_t (*service_isr)(int irq, void *devp);
	void (*tasklet)(unsigned long);
	u32 (*init_adapter)(struct megasas_instance *);
	u32 (*build_and_issue_cmd) (struct megasas_instance *,
				    struct scsi_cmnd *);
	void (*issue_dcmd) (struct megasas_instance *instance,
			    struct megasas_cmd *cmd);
};

#define MEGASAS_IS_LOGICAL(scp)						\
	(scp->device->channel < MEGASAS_MAX_PD_CHANNELS) ? 0 : 1

#define MEGASAS_DEV_INDEX(inst, scp)					\
	((scp->device->channel % 2) * MEGASAS_MAX_DEV_PER_CHANNEL) + 	\
	scp->device->id

struct megasas_cmd {

	union megasas_frame *frame;
	dma_addr_t frame_phys_addr;
	u8 *sense;
	dma_addr_t sense_phys_addr;

	u32 index;
	u8 sync_cmd;
	u8 cmd_status;
	u8 abort_aen;
	u8 retry_for_fw_reset;


	struct list_head list;
	struct scsi_cmnd *scmd;
	struct megasas_instance *instance;
	union {
		struct {
			u16 smid;
			u16 resvd;
		} context;
		u32 frame_count;
	};
};

#define MAX_MGMT_ADAPTERS		1024
#define MAX_IOCTL_SGE			16

struct megasas_iocpacket {

	u16 host_no;
	u16 __pad1;
	u32 sgl_off;
	u32 sge_count;
	u32 sense_off;
	u32 sense_len;
	union {
		u8 raw[128];
		struct megasas_header hdr;
	} frame;

	struct iovec sgl[MAX_IOCTL_SGE];

} __attribute__ ((packed));

struct megasas_aen {
	u16 host_no;
	u16 __pad1;
	u32 seq_num;
	u32 class_locale_word;
} __attribute__ ((packed));

#ifdef CONFIG_COMPAT
struct compat_megasas_iocpacket {
	u16 host_no;
	u16 __pad1;
	u32 sgl_off;
	u32 sge_count;
	u32 sense_off;
	u32 sense_len;
	union {
		u8 raw[128];
		struct megasas_header hdr;
	} frame;
	struct compat_iovec sgl[MAX_IOCTL_SGE];
} __attribute__ ((packed));

#define MEGASAS_IOC_FIRMWARE32	_IOWR('M', 1, struct compat_megasas_iocpacket)
#endif

#define MEGASAS_IOC_FIRMWARE	_IOWR('M', 1, struct megasas_iocpacket)
#define MEGASAS_IOC_GET_AEN	_IOW('M', 3, struct megasas_aen)

struct megasas_mgmt_info {

	u16 count;
	struct megasas_instance *instance[MAX_MGMT_ADAPTERS];
	int max_index;
};

#define msi_control_reg(base) (base + PCI_MSI_FLAGS)
#define PCI_MSIX_FLAGS_ENABLE (1 << 15)

#endif				/*LSI_MEGARAID_SAS_H */