summaryrefslogtreecommitdiffstats
path: root/drivers/scsi/mpt2sas/mpi/mpi2.h
blob: a3e60385787f328b851fdce0f6f4850a1e098e11 (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
/*
 *  Copyright (c) 2000-2010 LSI Corporation.
 *
 *
 *           Name:  mpi2.h
 *          Title:  MPI Message independent structures and definitions
 *                  including System Interface Register Set and
 *                  scatter/gather formats.
 *  Creation Date:  June 21, 2006
 *
 *  mpi2.h Version:  02.00.17
 *
 *  Version History
 *  ---------------
 *
 *  Date      Version   Description
 *  --------  --------  ------------------------------------------------------
 *  04-30-07  02.00.00  Corresponds to Fusion-MPT MPI Specification Rev A.
 *  06-04-07  02.00.01  Bumped MPI2_HEADER_VERSION_UNIT.
 *  06-26-07  02.00.02  Bumped MPI2_HEADER_VERSION_UNIT.
 *  08-31-07  02.00.03  Bumped MPI2_HEADER_VERSION_UNIT.
 *                      Moved ReplyPostHostIndex register to offset 0x6C of the
 *                      MPI2_SYSTEM_INTERFACE_REGS and modified the define for
 *                      MPI2_REPLY_POST_HOST_INDEX_OFFSET.
 *                      Added union of request descriptors.
 *                      Added union of reply descriptors.
 *  10-31-07  02.00.04  Bumped MPI2_HEADER_VERSION_UNIT.
 *                      Added define for MPI2_VERSION_02_00.
 *                      Fixed the size of the FunctionDependent5 field in the
 *                      MPI2_DEFAULT_REPLY structure.
 *  12-18-07  02.00.05  Bumped MPI2_HEADER_VERSION_UNIT.
 *                      Removed the MPI-defined Fault Codes and extended the
 *                      product specific codes up to 0xEFFF.
 *                      Added a sixth key value for the WriteSequence register
 *                      and changed the flush value to 0x0.
 *                      Added message function codes for Diagnostic Buffer Post
 *                      and Diagnsotic Release.
 *                      New IOCStatus define: MPI2_IOCSTATUS_DIAGNOSTIC_RELEASED
 *                      Moved MPI2_VERSION_UNION from mpi2_ioc.h.
 *  02-29-08  02.00.06  Bumped MPI2_HEADER_VERSION_UNIT.
 *  03-03-08  02.00.07  Bumped MPI2_HEADER_VERSION_UNIT.
 *  05-21-08  02.00.08  Bumped MPI2_HEADER_VERSION_UNIT.
 *                      Added #defines for marking a reply descriptor as unused.
 *  06-27-08  02.00.09  Bumped MPI2_HEADER_VERSION_UNIT.
 *  10-02-08  02.00.10  Bumped MPI2_HEADER_VERSION_UNIT.
 *                      Moved LUN field defines from mpi2_init.h.
 *  01-19-09  02.00.11  Bumped MPI2_HEADER_VERSION_UNIT.
 *  05-06-09  02.00.12  Bumped MPI2_HEADER_VERSION_UNIT.
 *                      In all request and reply descriptors, replaced VF_ID
 *                      field with MSIxIndex field.
 *                      Removed DevHandle field from
 *                      MPI2_SCSI_IO_SUCCESS_REPLY_DESCRIPTOR and made those
 *                      bytes reserved.
 *                      Added RAID Accelerator functionality.
 *  07-30-09  02.00.13  Bumped MPI2_HEADER_VERSION_UNIT.
 *  10-28-09  02.00.14  Bumped MPI2_HEADER_VERSION_UNIT.
 *                      Added MSI-x index mask and shift for Reply Post Host
 *                      Index register.
 *                      Added function code for Host Based Discovery Action.
 *  02-10-10  02.00.15  Bumped MPI2_HEADER_VERSION_UNIT.
 *                      Added define for MPI2_FUNCTION_PWR_MGMT_CONTROL.
 *                      Added defines for product-specific range of message
 *                      function codes, 0xF0 to 0xFF.
 *  05-12-10  02.00.16  Bumped MPI2_HEADER_VERSION_UNIT.
 *                      Added alternative defines for the SGE Direction bit.
 *  08-11-10  02.00.17  Bumped MPI2_HEADER_VERSION_UNIT.
 *  --------------------------------------------------------------------------
 */

#ifndef MPI2_H
#define MPI2_H


/*****************************************************************************
*
*        MPI Version Definitions
*
*****************************************************************************/

#define MPI2_VERSION_MAJOR                  (0x02)
#define MPI2_VERSION_MINOR                  (0x00)
#define MPI2_VERSION_MAJOR_MASK             (0xFF00)
#define MPI2_VERSION_MAJOR_SHIFT            (8)
#define MPI2_VERSION_MINOR_MASK             (0x00FF)
#define MPI2_VERSION_MINOR_SHIFT            (0)
#define MPI2_VERSION ((MPI2_VERSION_MAJOR << MPI2_VERSION_MAJOR_SHIFT) |   \
                                      MPI2_VERSION_MINOR)

#define MPI2_VERSION_02_00                  (0x0200)

/* versioning for this MPI header set */
#define MPI2_HEADER_VERSION_UNIT            (0x11)
#define MPI2_HEADER_VERSION_DEV             (0x00)
#define MPI2_HEADER_VERSION_UNIT_MASK       (0xFF00)
#define MPI2_HEADER_VERSION_UNIT_SHIFT      (8)
#define MPI2_HEADER_VERSION_DEV_MASK        (0x00FF)
#define MPI2_HEADER_VERSION_DEV_SHIFT       (0)
#define MPI2_HEADER_VERSION ((MPI2_HEADER_VERSION_UNIT << 8) | MPI2_HEADER_VERSION_DEV)


/*****************************************************************************
*
*        IOC State Definitions
*
*****************************************************************************/

#define MPI2_IOC_STATE_RESET               (0x00000000)
#define MPI2_IOC_STATE_READY               (0x10000000)
#define MPI2_IOC_STATE_OPERATIONAL         (0x20000000)
#define MPI2_IOC_STATE_FAULT               (0x40000000)

#define MPI2_IOC_STATE_MASK                (0xF0000000)
#define MPI2_IOC_STATE_SHIFT               (28)

/* Fault state range for prodcut specific codes */
#define MPI2_FAULT_PRODUCT_SPECIFIC_MIN                 (0x0000)
#define MPI2_FAULT_PRODUCT_SPECIFIC_MAX                 (0xEFFF)


/*****************************************************************************
*
*        System Interface Register Definitions
*
*****************************************************************************/

typedef volatile struct _MPI2_SYSTEM_INTERFACE_REGS
{
    U32         Doorbell;                   /* 0x00 */
    U32         WriteSequence;              /* 0x04 */
    U32         HostDiagnostic;             /* 0x08 */
    U32         Reserved1;                  /* 0x0C */
    U32         DiagRWData;                 /* 0x10 */
    U32         DiagRWAddressLow;           /* 0x14 */
    U32         DiagRWAddressHigh;          /* 0x18 */
    U32         Reserved2[5];               /* 0x1C */
    U32         HostInterruptStatus;        /* 0x30 */
    U32         HostInterruptMask;          /* 0x34 */
    U32         DCRData;                    /* 0x38 */
    U32         DCRAddress;                 /* 0x3C */
    U32         Reserved3[2];               /* 0x40 */
    U32         ReplyFreeHostIndex;         /* 0x48 */
    U32         Reserved4[8];               /* 0x4C */
    U32         ReplyPostHostIndex;         /* 0x6C */
    U32         Reserved5;                  /* 0x70 */
    U32         HCBSize;                    /* 0x74 */
    U32         HCBAddressLow;              /* 0x78 */
    U32         HCBAddressHigh;             /* 0x7C */
    U32         Reserved6[16];              /* 0x80 */
    U32         RequestDescriptorPostLow;   /* 0xC0 */
    U32         RequestDescriptorPostHigh;  /* 0xC4 */
    U32         Reserved7[14];              /* 0xC8 */
} MPI2_SYSTEM_INTERFACE_REGS, MPI2_POINTER PTR_MPI2_SYSTEM_INTERFACE_REGS,
  Mpi2SystemInterfaceRegs_t, MPI2_POINTER pMpi2SystemInterfaceRegs_t;

/*
 * Defines for working with the Doorbell register.
 */
#define MPI2_DOORBELL_OFFSET                    (0x00000000)

/* IOC --> System values */
#define MPI2_DOORBELL_USED                      (0x08000000)
#define MPI2_DOORBELL_WHO_INIT_MASK             (0x07000000)
#define MPI2_DOORBELL_WHO_INIT_SHIFT            (24)
#define MPI2_DOORBELL_FAULT_CODE_MASK           (0x0000FFFF)
#define MPI2_DOORBELL_DATA_MASK                 (0x0000FFFF)

/* System --> IOC values */
#define MPI2_DOORBELL_FUNCTION_MASK             (0xFF000000)
#define MPI2_DOORBELL_FUNCTION_SHIFT            (24)
#define MPI2_DOORBELL_ADD_DWORDS_MASK           (0x00FF0000)
#define MPI2_DOORBELL_ADD_DWORDS_SHIFT          (16)


/*
 * Defines for the WriteSequence register
 */
#define MPI2_WRITE_SEQUENCE_OFFSET              (0x00000004)
#define MPI2_WRSEQ_KEY_VALUE_MASK               (0x0000000F)
#define MPI2_WRSEQ_FLUSH_KEY_VALUE              (0x0)
#define MPI2_WRSEQ_1ST_KEY_VALUE                (0xF)
#define MPI2_WRSEQ_2ND_KEY_VALUE                (0x4)
#define MPI2_WRSEQ_3RD_KEY_VALUE                (0xB)
#define MPI2_WRSEQ_4TH_KEY_VALUE                (0x2)
#define MPI2_WRSEQ_5TH_KEY_VALUE                (0x7)
#define MPI2_WRSEQ_6TH_KEY_VALUE                (0xD)

/*
 * Defines for the HostDiagnostic register
 */
#define MPI2_HOST_DIAGNOSTIC_OFFSET             (0x00000008)

#define MPI2_DIAG_BOOT_DEVICE_SELECT_MASK       (0x00001800)
#define MPI2_DIAG_BOOT_DEVICE_SELECT_DEFAULT    (0x00000000)
#define MPI2_DIAG_BOOT_DEVICE_SELECT_HCDW       (0x00000800)

#define MPI2_DIAG_CLEAR_FLASH_BAD_SIG           (0x00000400)
#define MPI2_DIAG_FORCE_HCB_ON_RESET            (0x00000200)
#define MPI2_DIAG_HCB_MODE                      (0x00000100)
#define MPI2_DIAG_DIAG_WRITE_ENABLE             (0x00000080)
#define MPI2_DIAG_FLASH_BAD_SIG                 (0x00000040)
#define MPI2_DIAG_RESET_HISTORY                 (0x00000020)
#define MPI2_DIAG_DIAG_RW_ENABLE                (0x00000010)
#define MPI2_DIAG_RESET_ADAPTER                 (0x00000004)
#define MPI2_DIAG_HOLD_IOC_RESET                (0x00000002)

/*
 * Offsets for DiagRWData and address
 */
#define MPI2_DIAG_RW_DATA_OFFSET                (0x00000010)
#define MPI2_DIAG_RW_ADDRESS_LOW_OFFSET         (0x00000014)
#define MPI2_DIAG_RW_ADDRESS_HIGH_OFFSET        (0x00000018)

/*
 * Defines for the HostInterruptStatus register
 */
#define MPI2_HOST_INTERRUPT_STATUS_OFFSET       (0x00000030)
#define MPI2_HIS_SYS2IOC_DB_STATUS              (0x80000000)
#define MPI2_HIS_IOP_DOORBELL_STATUS            MPI2_HIS_SYS2IOC_DB_STATUS
#define MPI2_HIS_RESET_IRQ_STATUS               (0x40000000)
#define MPI2_HIS_REPLY_DESCRIPTOR_INTERRUPT     (0x00000008)
#define MPI2_HIS_IOC2SYS_DB_STATUS              (0x00000001)
#define MPI2_HIS_DOORBELL_INTERRUPT             MPI2_HIS_IOC2SYS_DB_STATUS

/*
 * Defines for the HostInterruptMask register
 */
#define MPI2_HOST_INTERRUPT_MASK_OFFSET         (0x00000034)
#define MPI2_HIM_RESET_IRQ_MASK                 (0x40000000)
#define MPI2_HIM_REPLY_INT_MASK                 (0x00000008)
#define MPI2_HIM_RIM                            MPI2_HIM_REPLY_INT_MASK
#define MPI2_HIM_IOC2SYS_DB_MASK                (0x00000001)
#define MPI2_HIM_DIM                            MPI2_HIM_IOC2SYS_DB_MASK

/*
 * Offsets for DCRData and address
 */
#define MPI2_DCR_DATA_OFFSET                    (0x00000038)
#define MPI2_DCR_ADDRESS_OFFSET                 (0x0000003C)

/*
 * Offset for the Reply Free Queue
 */
#define MPI2_REPLY_FREE_HOST_INDEX_OFFSET       (0x00000048)

/*
 * Defines for the Reply Descriptor Post Queue
 */
#define MPI2_REPLY_POST_HOST_INDEX_OFFSET       (0x0000006C)
#define MPI2_REPLY_POST_HOST_INDEX_MASK         (0x00FFFFFF)
#define MPI2_RPHI_MSIX_INDEX_MASK               (0xFF000000)
#define MPI2_RPHI_MSIX_INDEX_SHIFT              (24)

/*
 * Defines for the HCBSize and address
 */
#define MPI2_HCB_SIZE_OFFSET                    (0x00000074)
#define MPI2_HCB_SIZE_SIZE_MASK                 (0xFFFFF000)
#define MPI2_HCB_SIZE_HCB_ENABLE                (0x00000001)

#define MPI2_HCB_ADDRESS_LOW_OFFSET             (0x00000078)
#define MPI2_HCB_ADDRESS_HIGH_OFFSET            (0x0000007C)

/*
 * Offsets for the Request Queue
 */
#define MPI2_REQUEST_DESCRIPTOR_POST_LOW_OFFSET     (0x000000C0)
#define MPI2_REQUEST_DESCRIPTOR_POST_HIGH_OFFSET    (0x000000C4)


/*****************************************************************************
*
*        Message Descriptors
*
*****************************************************************************/

/* Request Descriptors */

/* Default Request Descriptor */
typedef struct _MPI2_DEFAULT_REQUEST_DESCRIPTOR
{
    U8              RequestFlags;               /* 0x00 */
    U8              MSIxIndex;                  /* 0x01 */
    U16             SMID;                       /* 0x02 */
    U16             LMID;                       /* 0x04 */
    U16             DescriptorTypeDependent;    /* 0x06 */
} MPI2_DEFAULT_REQUEST_DESCRIPTOR,
  MPI2_POINTER PTR_MPI2_DEFAULT_REQUEST_DESCRIPTOR,
  Mpi2DefaultRequestDescriptor_t, MPI2_POINTER pMpi2DefaultRequestDescriptor_t;

/* defines for the RequestFlags field */
#define MPI2_REQ_DESCRIPT_FLAGS_TYPE_MASK               (0x0E)
#define MPI2_REQ_DESCRIPT_FLAGS_SCSI_IO                 (0x00)
#define MPI2_REQ_DESCRIPT_FLAGS_SCSI_TARGET             (0x02)
#define MPI2_REQ_DESCRIPT_FLAGS_HIGH_PRIORITY           (0x06)
#define MPI2_REQ_DESCRIPT_FLAGS_DEFAULT_TYPE            (0x08)
#define MPI2_REQ_DESCRIPT_FLAGS_RAID_ACCELERATOR        (0x0A)

#define MPI2_REQ_DESCRIPT_FLAGS_IOC_FIFO_MARKER (0x01)


/* High Priority Request Descriptor */
typedef struct _MPI2_HIGH_PRIORITY_REQUEST_DESCRIPTOR
{
    U8              RequestFlags;               /* 0x00 */
    U8              MSIxIndex;                  /* 0x01 */
    U16             SMID;                       /* 0x02 */
    U16             LMID;                       /* 0x04 */
    U16             Reserved1;                  /* 0x06 */
} MPI2_HIGH_PRIORITY_REQUEST_DESCRIPTOR,
  MPI2_POINTER PTR_MPI2_HIGH_PRIORITY_REQUEST_DESCRIPTOR,
  Mpi2HighPriorityRequestDescriptor_t,
  MPI2_POINTER pMpi2HighPriorityRequestDescriptor_t;


/* SCSI IO Request Descriptor */
typedef struct _MPI2_SCSI_IO_REQUEST_DESCRIPTOR
{
    U8              RequestFlags;               /* 0x00 */
    U8              MSIxIndex;                  /* 0x01 */
    U16             SMID;                       /* 0x02 */
    U16             LMID;                       /* 0x04 */
    U16             DevHandle;                  /* 0x06 */
} MPI2_SCSI_IO_REQUEST_DESCRIPTOR,
  MPI2_POINTER PTR_MPI2_SCSI_IO_REQUEST_DESCRIPTOR,
  Mpi2SCSIIORequestDescriptor_t, MPI2_POINTER pMpi2SCSIIORequestDescriptor_t;


/* SCSI Target Request Descriptor */
typedef struct _MPI2_SCSI_TARGET_REQUEST_DESCRIPTOR
{
    U8              RequestFlags;               /* 0x00 */
    U8              MSIxIndex;                  /* 0x01 */
    U16             SMID;                       /* 0x02 */
    U16             LMID;                       /* 0x04 */
    U16             IoIndex;                    /* 0x06 */
} MPI2_SCSI_TARGET_REQUEST_DESCRIPTOR,
  MPI2_POINTER PTR_MPI2_SCSI_TARGET_REQUEST_DESCRIPTOR,
  Mpi2SCSITargetRequestDescriptor_t,
  MPI2_POINTER pMpi2SCSITargetRequestDescriptor_t;


/* RAID Accelerator Request Descriptor */
typedef struct _MPI2_RAID_ACCEL_REQUEST_DESCRIPTOR {
    U8              RequestFlags;               /* 0x00 */
    U8              MSIxIndex;                  /* 0x01 */
    U16             SMID;                       /* 0x02 */
    U16             LMID;                       /* 0x04 */
    U16             Reserved;                   /* 0x06 */
} MPI2_RAID_ACCEL_REQUEST_DESCRIPTOR,
  MPI2_POINTER PTR_MPI2_RAID_ACCEL_REQUEST_DESCRIPTOR,
  Mpi2RAIDAcceleratorRequestDescriptor_t,
  MPI2_POINTER pMpi2RAIDAcceleratorRequestDescriptor_t;


/* union of Request Descriptors */
typedef union _MPI2_REQUEST_DESCRIPTOR_UNION
{
    MPI2_DEFAULT_REQUEST_DESCRIPTOR             Default;
    MPI2_HIGH_PRIORITY_REQUEST_DESCRIPTOR       HighPriority;
    MPI2_SCSI_IO_REQUEST_DESCRIPTOR             SCSIIO;
    MPI2_SCSI_TARGET_REQUEST_DESCRIPTOR         SCSITarget;
    MPI2_RAID_ACCEL_REQUEST_DESCRIPTOR          RAIDAccelerator;
    U64                                         Words;
} MPI2_REQUEST_DESCRIPTOR_UNION, MPI2_POINTER PTR_MPI2_REQUEST_DESCRIPTOR_UNION,
  Mpi2RequestDescriptorUnion_t, MPI2_POINTER pMpi2RequestDescriptorUnion_t;


/* Reply Descriptors */

/* Default Reply Descriptor */
typedef struct _MPI2_DEFAULT_REPLY_DESCRIPTOR
{
    U8              ReplyFlags;                 /* 0x00 */
    U8              MSIxIndex;                  /* 0x01 */
    U16             DescriptorTypeDependent1;   /* 0x02 */
    U32             DescriptorTypeDependent2;   /* 0x04 */
} MPI2_DEFAULT_REPLY_DESCRIPTOR, MPI2_POINTER PTR_MPI2_DEFAULT_REPLY_DESCRIPTOR,
  Mpi2DefaultReplyDescriptor_t, MPI2_POINTER pMpi2DefaultReplyDescriptor_t;

/* defines for the ReplyFlags field */
#define MPI2_RPY_DESCRIPT_FLAGS_TYPE_MASK                   (0x0F)
#define MPI2_RPY_DESCRIPT_FLAGS_SCSI_IO_SUCCESS             (0x00)
#define MPI2_RPY_DESCRIPT_FLAGS_ADDRESS_REPLY               (0x01)
#define MPI2_RPY_DESCRIPT_FLAGS_TARGETASSIST_SUCCESS        (0x02)
#define MPI2_RPY_DESCRIPT_FLAGS_TARGET_COMMAND_BUFFER       (0x03)
#define MPI2_RPY_DESCRIPT_FLAGS_RAID_ACCELERATOR_SUCCESS    (0x05)
#define MPI2_RPY_DESCRIPT_FLAGS_UNUSED                      (0x0F)

/* values for marking a reply descriptor as unused */
#define MPI2_RPY_DESCRIPT_UNUSED_WORD0_MARK             (0xFFFFFFFF)
#define MPI2_RPY_DESCRIPT_UNUSED_WORD1_MARK             (0xFFFFFFFF)

/* Address Reply Descriptor */
typedef struct _MPI2_ADDRESS_REPLY_DESCRIPTOR
{
    U8              ReplyFlags;                 /* 0x00 */
    U8              MSIxIndex;                  /* 0x01 */
    U16             SMID;                       /* 0x02 */
    U32             ReplyFrameAddress;          /* 0x04 */
} MPI2_ADDRESS_REPLY_DESCRIPTOR, MPI2_POINTER PTR_MPI2_ADDRESS_REPLY_DESCRIPTOR,
  Mpi2AddressReplyDescriptor_t, MPI2_POINTER pMpi2AddressReplyDescriptor_t;

#define MPI2_ADDRESS_REPLY_SMID_INVALID                 (0x00)


/* SCSI IO Success Reply Descriptor */
typedef struct _MPI2_SCSI_IO_SUCCESS_REPLY_DESCRIPTOR
{
    U8              ReplyFlags;                 /* 0x00 */
    U8              MSIxIndex;                  /* 0x01 */
    U16             SMID;                       /* 0x02 */
    U16             TaskTag;                    /* 0x04 */
    U16             Reserved1;                  /* 0x06 */
} MPI2_SCSI_IO_SUCCESS_REPLY_DESCRIPTOR,
  MPI2_POINTER PTR_MPI2_SCSI_IO_SUCCESS_REPLY_DESCRIPTOR,
  Mpi2SCSIIOSuccessReplyDescriptor_t,
  MPI2_POINTER pMpi2SCSIIOSuccessReplyDescriptor_t;


/* TargetAssist Success Reply Descriptor */
typedef struct _MPI2_TARGETASSIST_SUCCESS_REPLY_DESCRIPTOR
{
    U8              ReplyFlags;                 /* 0x00 */
    U8              MSIxIndex;                  /* 0x01 */
    U16             SMID;                       /* 0x02 */
    U8              SequenceNumber;             /* 0x04 */
    U8              Reserved1;                  /* 0x05 */
    U16             IoIndex;                    /* 0x06 */
} MPI2_TARGETASSIST_SUCCESS_REPLY_DESCRIPTOR,
  MPI2_POINTER PTR_MPI2_TARGETASSIST_SUCCESS_REPLY_DESCRIPTOR,
  Mpi2TargetAssistSuccessReplyDescriptor_t,
  MPI2_POINTER pMpi2TargetAssistSuccessReplyDescriptor_t;


/* Target Command Buffer Reply Descriptor */
typedef struct _MPI2_TARGET_COMMAND_BUFFER_REPLY_DESCRIPTOR
{
    U8              ReplyFlags;                 /* 0x00 */
    U8              MSIxIndex;                  /* 0x01 */
    U8              VP_ID;                      /* 0x02 */
    U8              Flags;                      /* 0x03 */
    U16             InitiatorDevHandle;         /* 0x04 */
    U16             IoIndex;                    /* 0x06 */
} MPI2_TARGET_COMMAND_BUFFER_REPLY_DESCRIPTOR,
  MPI2_POINTER PTR_MPI2_TARGET_COMMAND_BUFFER_REPLY_DESCRIPTOR,
  Mpi2TargetCommandBufferReplyDescriptor_t,
  MPI2_POINTER pMpi2TargetCommandBufferReplyDescriptor_t;

/* defines for Flags field */
#define MPI2_RPY_DESCRIPT_TCB_FLAGS_PHYNUM_MASK     (0x3F)


/* RAID Accelerator Success Reply Descriptor */
typedef struct _MPI2_RAID_ACCELERATOR_SUCCESS_REPLY_DESCRIPTOR {
    U8              ReplyFlags;                 /* 0x00 */
    U8              MSIxIndex;                  /* 0x01 */
    U16             SMID;                       /* 0x02 */
    U32             Reserved;                   /* 0x04 */
} MPI2_RAID_ACCELERATOR_SUCCESS_REPLY_DESCRIPTOR,
  MPI2_POINTER PTR_MPI2_RAID_ACCELERATOR_SUCCESS_REPLY_DESCRIPTOR,
  Mpi2RAIDAcceleratorSuccessReplyDescriptor_t,
  MPI2_POINTER pMpi2RAIDAcceleratorSuccessReplyDescriptor_t;


/* union of Reply Descriptors */
typedef union _MPI2_REPLY_DESCRIPTORS_UNION
{
    MPI2_DEFAULT_REPLY_DESCRIPTOR                   Default;
    MPI2_ADDRESS_REPLY_DESCRIPTOR                   AddressReply;
    MPI2_SCSI_IO_SUCCESS_REPLY_DESCRIPTOR           SCSIIOSuccess;
    MPI2_TARGETASSIST_SUCCESS_REPLY_DESCRIPTOR      TargetAssistSuccess;
    MPI2_TARGET_COMMAND_BUFFER_REPLY_DESCRIPTOR     TargetCommandBuffer;
    MPI2_RAID_ACCELERATOR_SUCCESS_REPLY_DESCRIPTOR  RAIDAcceleratorSuccess;
    U64                                             Words;
} MPI2_REPLY_DESCRIPTORS_UNION, MPI2_POINTER PTR_MPI2_REPLY_DESCRIPTORS_UNION,
  Mpi2ReplyDescriptorsUnion_t, MPI2_POINTER pMpi2ReplyDescriptorsUnion_t;



/*****************************************************************************
*
*        Message Functions
*
*****************************************************************************/

#define MPI2_FUNCTION_SCSI_IO_REQUEST               (0x00) /* SCSI IO */
#define MPI2_FUNCTION_SCSI_TASK_MGMT                (0x01) /* SCSI Task Management */
#define MPI2_FUNCTION_IOC_INIT                      (0x02) /* IOC Init */
#define MPI2_FUNCTION_IOC_FACTS                     (0x03) /* IOC Facts */
#define MPI2_FUNCTION_CONFIG                        (0x04) /* Configuration */
#define MPI2_FUNCTION_PORT_FACTS                    (0x05) /* Port Facts */
#define MPI2_FUNCTION_PORT_ENABLE                   (0x06) /* Port Enable */
#define MPI2_FUNCTION_EVENT_NOTIFICATION            (0x07) /* Event Notification */
#define MPI2_FUNCTION_EVENT_ACK                     (0x08) /* Event Acknowledge */
#define MPI2_FUNCTION_FW_DOWNLOAD                   (0x09) /* FW Download */
#define MPI2_FUNCTION_TARGET_ASSIST                 (0x0B) /* Target Assist */
#define MPI2_FUNCTION_TARGET_STATUS_SEND            (0x0C) /* Target Status Send */
#define MPI2_FUNCTION_TARGET_MODE_ABORT             (0x0D) /* Target Mode Abort */
#define MPI2_FUNCTION_FW_UPLOAD                     (0x12) /* FW Upload */
#define MPI2_FUNCTION_RAID_ACTION                   (0x15) /* RAID Action */
#define MPI2_FUNCTION_RAID_SCSI_IO_PASSTHROUGH      (0x16) /* SCSI IO RAID Passthrough */
#define MPI2_FUNCTION_TOOLBOX                       (0x17) /* Toolbox */
#define MPI2_FUNCTION_SCSI_ENCLOSURE_PROCESSOR      (0x18) /* SCSI Enclosure Processor */
#define MPI2_FUNCTION_SMP_PASSTHROUGH               (0x1A) /* SMP Passthrough */
#define MPI2_FUNCTION_SAS_IO_UNIT_CONTROL           (0x1B) /* SAS IO Unit Control */
#define MPI2_FUNCTION_SATA_PASSTHROUGH              (0x1C) /* SATA Passthrough */
#define MPI2_FUNCTION_DIAG_BUFFER_POST              (0x1D) /* Diagnostic Buffer Post */
#define MPI2_FUNCTION_DIAG_RELEASE                  (0x1E) /* Diagnostic Release */
#define MPI2_FUNCTION_TARGET_CMD_BUF_BASE_POST      (0x24) /* Target Command Buffer Post Base */
#define MPI2_FUNCTION_TARGET_CMD_BUF_LIST_POST      (0x25) /* Target Command Buffer Post List */
#define MPI2_FUNCTION_RAID_ACCELERATOR              (0x2C) /* RAID Accelerator*/
/* Host Based Discovery Action */
#define MPI2_FUNCTION_HOST_BASED_DISCOVERY_ACTION   (0x2F)
/* Power Management Control */
#define MPI2_FUNCTION_PWR_MGMT_CONTROL              (0x30)
/* beginning of product-specific range */
#define MPI2_FUNCTION_MIN_PRODUCT_SPECIFIC          (0xF0)
/* end of product-specific range */
#define MPI2_FUNCTION_MAX_PRODUCT_SPECIFIC          (0xFF)




/* Doorbell functions */
#define MPI2_FUNCTION_IOC_MESSAGE_UNIT_RESET        (0x40)
#define MPI2_FUNCTION_HANDSHAKE                     (0x42)


/*****************************************************************************
*
*        IOC Status Values
*
*****************************************************************************/

/* mask for IOCStatus status value */
#define MPI2_IOCSTATUS_MASK                     (0x7FFF)

/****************************************************************************
*  Common IOCStatus values for all replies
****************************************************************************/

#define MPI2_IOCSTATUS_SUCCESS                      (0x0000)
#define MPI2_IOCSTATUS_INVALID_FUNCTION             (0x0001)
#define MPI2_IOCSTATUS_BUSY                         (0x0002)
#define MPI2_IOCSTATUS_INVALID_SGL                  (0x0003)
#define MPI2_IOCSTATUS_INTERNAL_ERROR               (0x0004)
#define MPI2_IOCSTATUS_INVALID_VPID                 (0x0005)
#define MPI2_IOCSTATUS_INSUFFICIENT_RESOURCES       (0x0006)
#define MPI2_IOCSTATUS_INVALID_FIELD                (0x0007)
#define MPI2_IOCSTATUS_INVALID_STATE                (0x0008)
#define MPI2_IOCSTATUS_OP_STATE_NOT_SUPPORTED       (0x0009)

/****************************************************************************
*  Config IOCStatus values
****************************************************************************/

#define MPI2_IOCSTATUS_CONFIG_INVALID_ACTION        (0x0020)
#define MPI2_IOCSTATUS_CONFIG_INVALID_TYPE          (0x0021)
#define MPI2_IOCSTATUS_CONFIG_INVALID_PAGE          (0x0022)
#define MPI2_IOCSTATUS_CONFIG_INVALID_DATA          (0x0023)
#define MPI2_IOCSTATUS_CONFIG_NO_DEFAULTS           (0x0024)
#define MPI2_IOCSTATUS_CONFIG_CANT_COMMIT           (0x0025)

/****************************************************************************
*  SCSI IO Reply
****************************************************************************/

#define MPI2_IOCSTATUS_SCSI_RECOVERED_ERROR         (0x0040)
#define MPI2_IOCSTATUS_SCSI_INVALID_DEVHANDLE       (0x0042)
#define MPI2_IOCSTATUS_SCSI_DEVICE_NOT_THERE        (0x0043)
#define MPI2_IOCSTATUS_SCSI_DATA_OVERRUN            (0x0044)
#define MPI2_IOCSTATUS_SCSI_DATA_UNDERRUN           (0x0045)
#define MPI2_IOCSTATUS_SCSI_IO_DATA_ERROR           (0x0046)
#define MPI2_IOCSTATUS_SCSI_PROTOCOL_ERROR          (0x0047)
#define MPI2_IOCSTATUS_SCSI_TASK_TERMINATED         (0x0048)
#define MPI2_IOCSTATUS_SCSI_RESIDUAL_MISMATCH       (0x0049)
#define MPI2_IOCSTATUS_SCSI_TASK_MGMT_FAILED        (0x004A)
#define MPI2_IOCSTATUS_SCSI_IOC_TERMINATED          (0x004B)
#define MPI2_IOCSTATUS_SCSI_EXT_TERMINATED          (0x004C)

/****************************************************************************
*  For use by SCSI Initiator and SCSI Target end-to-end data protection
****************************************************************************/

#define MPI2_IOCSTATUS_EEDP_GUARD_ERROR             (0x004D)
#define MPI2_IOCSTATUS_EEDP_REF_TAG_ERROR           (0x004E)
#define MPI2_IOCSTATUS_EEDP_APP_TAG_ERROR           (0x004F)

/****************************************************************************
*  SCSI Target values
****************************************************************************/

#define MPI2_IOCSTATUS_TARGET_INVALID_IO_INDEX      (0x0062)
#define MPI2_IOCSTATUS_TARGET_ABORTED               (0x0063)
#define MPI2_IOCSTATUS_TARGET_NO_CONN_RETRYABLE     (0x0064)
#define MPI2_IOCSTATUS_TARGET_NO_CONNECTION         (0x0065)
#define MPI2_IOCSTATUS_TARGET_XFER_COUNT_MISMATCH   (0x006A)
#define MPI2_IOCSTATUS_TARGET_DATA_OFFSET_ERROR     (0x006D)
#define MPI2_IOCSTATUS_TARGET_TOO_MUCH_WRITE_DATA   (0x006E)
#define MPI2_IOCSTATUS_TARGET_IU_TOO_SHORT          (0x006F)
#define MPI2_IOCSTATUS_TARGET_ACK_NAK_TIMEOUT       (0x0070)
#define MPI2_IOCSTATUS_TARGET_NAK_RECEIVED          (0x0071)

/****************************************************************************
*  Serial Attached SCSI values
****************************************************************************/

#define MPI2_IOCSTATUS_SAS_SMP_REQUEST_FAILED       (0x0090)
#define MPI2_IOCSTATUS_SAS_SMP_DATA_OVERRUN         (0x0091)

/****************************************************************************
*  Diagnostic Buffer Post / Diagnostic Release values
****************************************************************************/

#define MPI2_IOCSTATUS_DIAGNOSTIC_RELEASED          (0x00A0)

/****************************************************************************
*  RAID Accelerator values
****************************************************************************/

#define MPI2_IOCSTATUS_RAID_ACCEL_ERROR             (0x00B0)

/****************************************************************************
*  IOCStatus flag to indicate that log info is available
****************************************************************************/

#define MPI2_IOCSTATUS_FLAG_LOG_INFO_AVAILABLE      (0x8000)

/****************************************************************************
*  IOCLogInfo Types
****************************************************************************/

#define MPI2_IOCLOGINFO_TYPE_MASK               (0xF0000000)
#define MPI2_IOCLOGINFO_TYPE_SHIFT              (28)
#define MPI2_IOCLOGINFO_TYPE_NONE               (0x0)
#define MPI2_IOCLOGINFO_TYPE_SCSI               (0x1)
#define MPI2_IOCLOGINFO_TYPE_FC                 (0x2)
#define MPI2_IOCLOGINFO_TYPE_SAS                (0x3)
#define MPI2_IOCLOGINFO_TYPE_ISCSI              (0x4)
#define MPI2_IOCLOGINFO_LOG_DATA_MASK           (0x0FFFFFFF)


/*****************************************************************************
*
*        Standard Message Structures
*
*****************************************************************************/

/****************************************************************************
* Request Message Header for all request messages
****************************************************************************/

typedef struct _MPI2_REQUEST_HEADER
{
    U16             FunctionDependent1;         /* 0x00 */
    U8              ChainOffset;                /* 0x02 */
    U8              Function;                   /* 0x03 */
    U16             FunctionDependent2;         /* 0x04 */
    U8              FunctionDependent3;         /* 0x06 */
    U8              MsgFlags;                   /* 0x07 */
    U8              VP_ID;                      /* 0x08 */
    U8              VF_ID;                      /* 0x09 */
    U16             Reserved1;                  /* 0x0A */
} MPI2_REQUEST_HEADER, MPI2_POINTER PTR_MPI2_REQUEST_HEADER,
  MPI2RequestHeader_t, MPI2_POINTER pMPI2RequestHeader_t;


/****************************************************************************
*  Default Reply
****************************************************************************/

typedef struct _MPI2_DEFAULT_REPLY
{
    U16             FunctionDependent1;         /* 0x00 */
    U8              MsgLength;                  /* 0x02 */
    U8              Function;                   /* 0x03 */
    U16             FunctionDependent2;         /* 0x04 */
    U8              FunctionDependent3;         /* 0x06 */
    U8              MsgFlags;                   /* 0x07 */
    U8              VP_ID;                      /* 0x08 */
    U8              VF_ID;                      /* 0x09 */
    U16             Reserved1;                  /* 0x0A */
    U16             FunctionDependent5;         /* 0x0C */
    U16             IOCStatus;                  /* 0x0E */
    U32             IOCLogInfo;                 /* 0x10 */
} MPI2_DEFAULT_REPLY, MPI2_POINTER PTR_MPI2_DEFAULT_REPLY,
  MPI2DefaultReply_t, MPI2_POINTER pMPI2DefaultReply_t;


/* common version structure/union used in messages and configuration pages */

typedef struct _MPI2_VERSION_STRUCT
{
    U8                      Dev;                        /* 0x00 */
    U8                      Unit;                       /* 0x01 */
    U8                      Minor;                      /* 0x02 */
    U8                      Major;                      /* 0x03 */
} MPI2_VERSION_STRUCT;

typedef union _MPI2_VERSION_UNION
{
    MPI2_VERSION_STRUCT     Struct;
    U32                     Word;
} MPI2_VERSION_UNION;


/* LUN field defines, common to many structures */
#define MPI2_LUN_FIRST_LEVEL_ADDRESSING             (0x0000FFFF)
#define MPI2_LUN_SECOND_LEVEL_ADDRESSING            (0xFFFF0000)
#define MPI2_LUN_THIRD_LEVEL_ADDRESSING             (0x0000FFFF)
#define MPI2_LUN_FOURTH_LEVEL_ADDRESSING            (0xFFFF0000)
#define MPI2_LUN_LEVEL_1_WORD                       (0xFF00)
#define MPI2_LUN_LEVEL_1_DWORD                      (0x0000FF00)


/*****************************************************************************
*
*        Fusion-MPT MPI Scatter Gather Elements
*
*****************************************************************************/

/****************************************************************************
*  MPI Simple Element structures
****************************************************************************/

typedef struct _MPI2_SGE_SIMPLE32
{
    U32                     FlagsLength;
    U32                     Address;
} MPI2_SGE_SIMPLE32, MPI2_POINTER PTR_MPI2_SGE_SIMPLE32,
  Mpi2SGESimple32_t, MPI2_POINTER pMpi2SGESimple32_t;

typedef struct _MPI2_SGE_SIMPLE64
{
    U32                     FlagsLength;
    U64                     Address;
} MPI2_SGE_SIMPLE64, MPI2_POINTER PTR_MPI2_SGE_SIMPLE64,
  Mpi2SGESimple64_t, MPI2_POINTER pMpi2SGESimple64_t;

typedef struct _MPI2_SGE_SIMPLE_UNION
{
    U32                     FlagsLength;
    union
    {
        U32                 Address32;
        U64                 Address64;
    } u;
} MPI2_SGE_SIMPLE_UNION, MPI2_POINTER PTR_MPI2_SGE_SIMPLE_UNION,
  Mpi2SGESimpleUnion_t, MPI2_POINTER pMpi2SGESimpleUnion_t;


/****************************************************************************
*  MPI Chain Element structures
****************************************************************************/

typedef struct _MPI2_SGE_CHAIN32
{
    U16                     Length;
    U8                      NextChainOffset;
    U8                      Flags;
    U32                     Address;
} MPI2_SGE_CHAIN32, MPI2_POINTER PTR_MPI2_SGE_CHAIN32,
  Mpi2SGEChain32_t, MPI2_POINTER pMpi2SGEChain32_t;

typedef struct _MPI2_SGE_CHAIN64
{
    U16                     Length;
    U8                      NextChainOffset;
    U8                      Flags;
    U64                     Address;
} MPI2_SGE_CHAIN64, MPI2_POINTER PTR_MPI2_SGE_CHAIN64,
  Mpi2SGEChain64_t, MPI2_POINTER pMpi2SGEChain64_t;

typedef struct _MPI2_SGE_CHAIN_UNION
{
    U16                     Length;
    U8                      NextChainOffset;
    U8                      Flags;
    union
    {
        U32                 Address32;
        U64                 Address64;
    } u;
} MPI2_SGE_CHAIN_UNION, MPI2_POINTER PTR_MPI2_SGE_CHAIN_UNION,
  Mpi2SGEChainUnion_t, MPI2_POINTER pMpi2SGEChainUnion_t;


/****************************************************************************
*  MPI Transaction Context Element structures
****************************************************************************/

typedef struct _MPI2_SGE_TRANSACTION32
{
    U8                      Reserved;
    U8                      ContextSize;
    U8                      DetailsLength;
    U8                      Flags;
    U32                     TransactionContext[1];
    U32                     TransactionDetails[1];
} MPI2_SGE_TRANSACTION32, MPI2_POINTER PTR_MPI2_SGE_TRANSACTION32,
  Mpi2SGETransaction32_t, MPI2_POINTER pMpi2SGETransaction32_t;

typedef struct _MPI2_SGE_TRANSACTION64
{
    U8                      Reserved;
    U8                      ContextSize;
    U8                      DetailsLength;
    U8                      Flags;
    U32                     TransactionContext[2];
    U32                     TransactionDetails[1];
} MPI2_SGE_TRANSACTION64, MPI2_POINTER PTR_MPI2_SGE_TRANSACTION64,
  Mpi2SGETransaction64_t, MPI2_POINTER pMpi2SGETransaction64_t;

typedef struct _MPI2_SGE_TRANSACTION96
{
    U8                      Reserved;
    U8                      ContextSize;
    U8                      DetailsLength;
    U8                      Flags;
    U32                     TransactionContext[3];
    U32                     TransactionDetails[1];
} MPI2_SGE_TRANSACTION96, MPI2_POINTER PTR_MPI2_SGE_TRANSACTION96,
  Mpi2SGETransaction96_t, MPI2_POINTER pMpi2SGETransaction96_t;

typedef struct _MPI2_SGE_TRANSACTION128
{
    U8                      Reserved;
    U8                      ContextSize;
    U8                      DetailsLength;
    U8                      Flags;
    U32                     TransactionContext[4];
    U32                     TransactionDetails[1];
} MPI2_SGE_TRANSACTION128, MPI2_POINTER PTR_MPI2_SGE_TRANSACTION128,
  Mpi2SGETransaction_t128, MPI2_POINTER pMpi2SGETransaction_t128;

typedef struct _MPI2_SGE_TRANSACTION_UNION
{
    U8                      Reserved;
    U8                      ContextSize;
    U8                      DetailsLength;
    U8                      Flags;
    union
    {
        U32                 TransactionContext32[1];
        U32                 TransactionContext64[2];
        U32                 TransactionContext96[3];
        U32                 TransactionContext128[4];
    } u;
    U32                     TransactionDetails[1];
} MPI2_SGE_TRANSACTION_UNION, MPI2_POINTER PTR_MPI2_SGE_TRANSACTION_UNION,
  Mpi2SGETransactionUnion_t, MPI2_POINTER pMpi2SGETransactionUnion_t;


/****************************************************************************
*  MPI SGE union for IO SGL's
****************************************************************************/

typedef struct _MPI2_MPI_SGE_IO_UNION
{
    union
    {
        MPI2_SGE_SIMPLE_UNION   Simple;
        MPI2_SGE_CHAIN_UNION    Chain;
    } u;
} MPI2_MPI_SGE_IO_UNION, MPI2_POINTER PTR_MPI2_MPI_SGE_IO_UNION,
  Mpi2MpiSGEIOUnion_t, MPI2_POINTER pMpi2MpiSGEIOUnion_t;


/****************************************************************************
*  MPI SGE union for SGL's with Simple and Transaction elements
****************************************************************************/

typedef struct _MPI2_SGE_TRANS_SIMPLE_UNION
{
    union
    {
        MPI2_SGE_SIMPLE_UNION       Simple;
        MPI2_SGE_TRANSACTION_UNION  Transaction;
    } u;
} MPI2_SGE_TRANS_SIMPLE_UNION, MPI2_POINTER PTR_MPI2_SGE_TRANS_SIMPLE_UNION,
  Mpi2SGETransSimpleUnion_t, MPI2_POINTER pMpi2SGETransSimpleUnion_t;


/****************************************************************************
*  All MPI SGE types union
****************************************************************************/

typedef struct _MPI2_MPI_SGE_UNION
{
    union
    {
        MPI2_SGE_SIMPLE_UNION       Simple;
        MPI2_SGE_CHAIN_UNION        Chain;
        MPI2_SGE_TRANSACTION_UNION  Transaction;
    } u;
} MPI2_MPI_SGE_UNION, MPI2_POINTER PTR_MPI2_MPI_SGE_UNION,
  Mpi2MpiSgeUnion_t, MPI2_POINTER pMpi2MpiSgeUnion_t;


/****************************************************************************
*  MPI SGE field definition and masks
****************************************************************************/

/* Flags field bit definitions */

#define MPI2_SGE_FLAGS_LAST_ELEMENT             (0x80)
#define MPI2_SGE_FLAGS_END_OF_BUFFER            (0x40)
#define MPI2_SGE_FLAGS_ELEMENT_TYPE_MASK        (0x30)
#define MPI2_SGE_FLAGS_LOCAL_ADDRESS            (0x08)
#define MPI2_SGE_FLAGS_DIRECTION                (0x04)
#define MPI2_SGE_FLAGS_ADDRESS_SIZE             (0x02)
#define MPI2_SGE_FLAGS_END_OF_LIST              (0x01)

#define MPI2_SGE_FLAGS_SHIFT                    (24)

#define MPI2_SGE_LENGTH_MASK                    (0x00FFFFFF)
#define MPI2_SGE_CHAIN_LENGTH_MASK              (0x0000FFFF)

/* Element Type */

#define MPI2_SGE_FLAGS_TRANSACTION_ELEMENT      (0x00)
#define MPI2_SGE_FLAGS_SIMPLE_ELEMENT           (0x10)
#define MPI2_SGE_FLAGS_CHAIN_ELEMENT            (0x30)
#define MPI2_SGE_FLAGS_ELEMENT_MASK             (0x30)

/* Address location */

#define MPI2_SGE_FLAGS_SYSTEM_ADDRESS           (0x00)

/* Direction */

#define MPI2_SGE_FLAGS_IOC_TO_HOST              (0x00)
#define MPI2_SGE_FLAGS_HOST_TO_IOC              (0x04)

#define MPI2_SGE_FLAGS_DEST                     (MPI2_SGE_FLAGS_IOC_TO_HOST)
#define MPI2_SGE_FLAGS_SOURCE                   (MPI2_SGE_FLAGS_HOST_TO_IOC)

/* Address Size */

#define MPI2_SGE_FLAGS_32_BIT_ADDRESSING        (0x00)
#define MPI2_SGE_FLAGS_64_BIT_ADDRESSING        (0x02)

/* Context Size */

#define MPI2_SGE_FLAGS_32_BIT_CONTEXT           (0x00)
#define MPI2_SGE_FLAGS_64_BIT_CONTEXT           (0x02)
#define MPI2_SGE_FLAGS_96_BIT_CONTEXT           (0x04)
#define MPI2_SGE_FLAGS_128_BIT_CONTEXT          (0x06)

#define MPI2_SGE_CHAIN_OFFSET_MASK              (0x00FF0000)
#define MPI2_SGE_CHAIN_OFFSET_SHIFT             (16)

/****************************************************************************
*  MPI SGE operation Macros
****************************************************************************/

/* SIMPLE FlagsLength manipulations... */
#define MPI2_SGE_SET_FLAGS(f)          ((U32)(f) << MPI2_SGE_FLAGS_SHIFT)
#define MPI2_SGE_GET_FLAGS(f)          (((f) & ~MPI2_SGE_LENGTH_MASK) >> MPI2_SGE_FLAGS_SHIFT)
#define MPI2_SGE_LENGTH(f)             ((f) & MPI2_SGE_LENGTH_MASK)
#define MPI2_SGE_CHAIN_LENGTH(f)       ((f) & MPI2_SGE_CHAIN_LENGTH_MASK)

#define MPI2_SGE_SET_FLAGS_LENGTH(f,l) (MPI2_SGE_SET_FLAGS(f) | MPI2_SGE_LENGTH(l))

#define MPI2_pSGE_GET_FLAGS(psg)            MPI2_SGE_GET_FLAGS((psg)->FlagsLength)
#define MPI2_pSGE_GET_LENGTH(psg)           MPI2_SGE_LENGTH((psg)->FlagsLength)
#define MPI2_pSGE_SET_FLAGS_LENGTH(psg,f,l) (psg)->FlagsLength = MPI2_SGE_SET_FLAGS_LENGTH(f,l)

/* CAUTION - The following are READ-MODIFY-WRITE! */
#define MPI2_pSGE_SET_FLAGS(psg,f)      (psg)->FlagsLength |= MPI2_SGE_SET_FLAGS(f)
#define MPI2_pSGE_SET_LENGTH(psg,l)     (psg)->FlagsLength |= MPI2_SGE_LENGTH(l)

#define MPI2_GET_CHAIN_OFFSET(x)    ((x & MPI2_SGE_CHAIN_OFFSET_MASK) >> MPI2_SGE_CHAIN_OFFSET_SHIFT)


/*****************************************************************************
*
*        Fusion-MPT IEEE Scatter Gather Elements
*
*****************************************************************************/

/****************************************************************************
*  IEEE Simple Element structures
****************************************************************************/

typedef struct _MPI2_IEEE_SGE_SIMPLE32
{
    U32                     Address;
    U32                     FlagsLength;
} MPI2_IEEE_SGE_SIMPLE32, MPI2_POINTER PTR_MPI2_IEEE_SGE_SIMPLE32,
  Mpi2IeeeSgeSimple32_t, MPI2_POINTER pMpi2IeeeSgeSimple32_t;

typedef struct _MPI2_IEEE_SGE_SIMPLE64
{
    U64                     Address;
    U32                     Length;
    U16                     Reserved1;
    U8                      Reserved2;
    U8                      Flags;
} MPI2_IEEE_SGE_SIMPLE64, MPI2_POINTER PTR_MPI2_IEEE_SGE_SIMPLE64,
  Mpi2IeeeSgeSimple64_t, MPI2_POINTER pMpi2IeeeSgeSimple64_t;

typedef union _MPI2_IEEE_SGE_SIMPLE_UNION
{
    MPI2_IEEE_SGE_SIMPLE32  Simple32;
    MPI2_IEEE_SGE_SIMPLE64  Simple64;
} MPI2_IEEE_SGE_SIMPLE_UNION, MPI2_POINTER PTR_MPI2_IEEE_SGE_SIMPLE_UNION,
  Mpi2IeeeSgeSimpleUnion_t, MPI2_POINTER pMpi2IeeeSgeSimpleUnion_t;


/****************************************************************************
*  IEEE Chain Element structures
****************************************************************************/

typedef MPI2_IEEE_SGE_SIMPLE32  MPI2_IEEE_SGE_CHAIN32;

typedef MPI2_IEEE_SGE_SIMPLE64  MPI2_IEEE_SGE_CHAIN64;

typedef union _MPI2_IEEE_SGE_CHAIN_UNION
{
    MPI2_IEEE_SGE_CHAIN32   Chain32;
    MPI2_IEEE_SGE_CHAIN64   Chain64;
} MPI2_IEEE_SGE_CHAIN_UNION, MPI2_POINTER PTR_MPI2_IEEE_SGE_CHAIN_UNION,
  Mpi2IeeeSgeChainUnion_t, MPI2_POINTER pMpi2IeeeSgeChainUnion_t;


/****************************************************************************
*  All IEEE SGE types union
****************************************************************************/

typedef struct _MPI2_IEEE_SGE_UNION
{
    union
    {
        MPI2_IEEE_SGE_SIMPLE_UNION  Simple;
        MPI2_IEEE_SGE_CHAIN_UNION   Chain;
    } u;
} MPI2_IEEE_SGE_UNION, MPI2_POINTER PTR_MPI2_IEEE_SGE_UNION,
  Mpi2IeeeSgeUnion_t, MPI2_POINTER pMpi2IeeeSgeUnion_t;


/****************************************************************************
*  IEEE SGE field definitions and masks
****************************************************************************/

/* Flags field bit definitions */

#define MPI2_IEEE_SGE_FLAGS_ELEMENT_TYPE_MASK   (0x80)

#define MPI2_IEEE32_SGE_FLAGS_SHIFT             (24)

#define MPI2_IEEE32_SGE_LENGTH_MASK             (0x00FFFFFF)

/* Element Type */

#define MPI2_IEEE_SGE_FLAGS_SIMPLE_ELEMENT      (0x00)
#define MPI2_IEEE_SGE_FLAGS_CHAIN_ELEMENT       (0x80)

/* Data Location Address Space */

#define MPI2_IEEE_SGE_FLAGS_ADDR_MASK           (0x03)
#define MPI2_IEEE_SGE_FLAGS_SYSTEM_ADDR         (0x00)
#define MPI2_IEEE_SGE_FLAGS_IOCDDR_ADDR         (0x01)
#define MPI2_IEEE_SGE_FLAGS_IOCPLB_ADDR         (0x02)
#define MPI2_IEEE_SGE_FLAGS_IOCPLBNTA_ADDR      (0x03)


/****************************************************************************
*  IEEE SGE operation Macros
****************************************************************************/

/* SIMPLE FlagsLength manipulations... */
#define MPI2_IEEE32_SGE_SET_FLAGS(f)     ((U32)(f) << MPI2_IEEE32_SGE_FLAGS_SHIFT)
#define MPI2_IEEE32_SGE_GET_FLAGS(f)     (((f) & ~MPI2_IEEE32_SGE_LENGTH_MASK) >> MPI2_IEEE32_SGE_FLAGS_SHIFT)
#define MPI2_IEEE32_SGE_LENGTH(f)        ((f) & MPI2_IEEE32_SGE_LENGTH_MASK)

#define MPI2_IEEE32_SGE_SET_FLAGS_LENGTH(f, l)      (MPI2_IEEE32_SGE_SET_FLAGS(f) | MPI2_IEEE32_SGE_LENGTH(l))

#define MPI2_IEEE32_pSGE_GET_FLAGS(psg)             MPI2_IEEE32_SGE_GET_FLAGS((psg)->FlagsLength)
#define MPI2_IEEE32_pSGE_GET_LENGTH(psg)            MPI2_IEEE32_SGE_LENGTH((psg)->FlagsLength)
#define MPI2_IEEE32_pSGE_SET_FLAGS_LENGTH(psg,f,l)  (psg)->FlagsLength = MPI2_IEEE32_SGE_SET_FLAGS_LENGTH(f,l)

/* CAUTION - The following are READ-MODIFY-WRITE! */
#define MPI2_IEEE32_pSGE_SET_FLAGS(psg,f)    (psg)->FlagsLength |= MPI2_IEEE32_SGE_SET_FLAGS(f)
#define MPI2_IEEE32_pSGE_SET_LENGTH(psg,l)   (psg)->FlagsLength |= MPI2_IEEE32_SGE_LENGTH(l)




/*****************************************************************************
*
*        Fusion-MPT MPI/IEEE Scatter Gather Unions
*
*****************************************************************************/

typedef union _MPI2_SIMPLE_SGE_UNION
{
    MPI2_SGE_SIMPLE_UNION       MpiSimple;
    MPI2_IEEE_SGE_SIMPLE_UNION  IeeeSimple;
} MPI2_SIMPLE_SGE_UNION, MPI2_POINTER PTR_MPI2_SIMPLE_SGE_UNION,
  Mpi2SimpleSgeUntion_t, MPI2_POINTER pMpi2SimpleSgeUntion_t;


typedef union _MPI2_SGE_IO_UNION
{
    MPI2_SGE_SIMPLE_UNION       MpiSimple;
    MPI2_SGE_CHAIN_UNION        MpiChain;
    MPI2_IEEE_SGE_SIMPLE_UNION  IeeeSimple;
    MPI2_IEEE_SGE_CHAIN_UNION   IeeeChain;
} MPI2_SGE_IO_UNION, MPI2_POINTER PTR_MPI2_SGE_IO_UNION,
  Mpi2SGEIOUnion_t, MPI2_POINTER pMpi2SGEIOUnion_t;


/****************************************************************************
*
*  Values for SGLFlags field, used in many request messages with an SGL
*
****************************************************************************/

/* values for MPI SGL Data Location Address Space subfield */
#define MPI2_SGLFLAGS_ADDRESS_SPACE_MASK            (0x0C)
#define MPI2_SGLFLAGS_SYSTEM_ADDRESS_SPACE          (0x00)
#define MPI2_SGLFLAGS_IOCDDR_ADDRESS_SPACE          (0x04)
#define MPI2_SGLFLAGS_IOCPLB_ADDRESS_SPACE          (0x08)
#define MPI2_SGLFLAGS_IOCPLBNTA_ADDRESS_SPACE       (0x0C)
/* values for SGL Type subfield */
#define MPI2_SGLFLAGS_SGL_TYPE_MASK                 (0x03)
#define MPI2_SGLFLAGS_SGL_TYPE_MPI                  (0x00)
#define MPI2_SGLFLAGS_SGL_TYPE_IEEE32               (0x01)
#define MPI2_SGLFLAGS_SGL_TYPE_IEEE64               (0x02)


#endif

OpenPOWER on IntegriCloud