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
|
/** @file
UEFI SCSI Library implementation
Copyright (c) 2006 - 2008, Intel Corporation.<BR>
All rights reserved. This program and the accompanying materials
are licensed and made available under the terms and conditions of the BSD License
which accompanies this distribution. The full text of the license may be found at
http://opensource.org/licenses/bsd-license.php
THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
**/
#include <Uefi.h>
#include <Library/DebugLib.h>
#include <Library/UefiScsiLib.h>
#include <Library/BaseMemoryLib.h>
#include <IndustryStandard/Scsi.h>
//
// Max bytes needed to represent ID of a SCSI device
//
#define EFI_SCSI_TARGET_MAX_BYTES (0x10)
//
// bit5..7 are for Logical unit number
// 11100000b (0xe0)
//
#define EFI_SCSI_LOGICAL_UNIT_NUMBER_MASK 0xe0
//
// Scsi Command Length six or ten
//
#define EFI_SCSI_OP_LENGTH_SIX 0x6
#define EFI_SCSI_OP_LENGTH_TEN 0xa
/**
Execute Test Unit Ready SCSI command on a specific SCSI target.
Executes the Test Unit Ready command on the SCSI target specified by ScsiIo.
If Timeout is zero, then this function waits indefinitely for the command to complete.
If Timeout is greater than zero, then the command is executed and will timeout after Timeout 100 ns units.
If ScsiIo is NULL, then ASSERT().
If SenseDataLength is NULL, then ASSERT().
If HostAdapterStatus is NULL, then ASSERT().
If TargetStatus is NULL, then ASSERT().
@param[in] ScsiIo A pointer to the SCSI I/O Protocol instance
for the specific SCSI target.
@param[in] Timeout The timeout in 100 ns units to use for the execution
of this SCSI Request Packet. A Timeout value of
zero means that this function will wait indefinitely
for the SCSI Request Packet to execute. If Timeout
is greater than zero, then this function will return
EFI_TIMEOUT if the time required to execute the SCSI
Request Packet is greater than Timeout.
@param[in, out] SenseData A pointer to sense data that was generated by
the execution of the SCSI Request Packet. This
buffer must be allocated by the caller.
If SenseDataLength is 0, then this parameter is
optional and may be NULL.
@param[in, out] SenseDataLength On input, a pointer to the length in bytes of
the SenseData buffer. On output, a pointer to
the number of bytes written to the SenseData buffer.
@param[out] HostAdapterStatus The status of the SCSI Host Controller that produces
the SCSI bus containing the SCSI target specified by
ScsiIo when the SCSI Request Packet was executed.
See the EFI SCSI I/O Protocol in the UEFI Specification
for details on the possible return values.
@param[out] TargetStatus The status returned by the SCSI target specified
by ScsiIo when the SCSI Request Packet was executed
on the SCSI Host Controller. See the EFI SCSI I/O
Protocol in the UEFI Specification for details on
the possible return values.
@retval EFI_SUCCESS The command was executed successfully.
See HostAdapterStatus, TargetStatus, SenseDataLength,
and SenseData in that order for additional status
information.
@retval EFI_NOT_READY The SCSI Request Packet could not be sent because
there are too many SCSI Command Packets already
queued. The SCSI Request Packet was not sent, so
no additional status information is available.
The caller may retry again later.
@retval EFI_DEVICE_ERROR A device error occurred while attempting to send
SCSI Request Packet. See HostAdapterStatus,
TargetStatus, SenseDataLength, and SenseData in that
order for additional status information.
@retval EFI_UNSUPPORTED The command described by the SCSI Request Packet
is not supported by the SCSI initiator(i.e., SCSI
Host Controller). The SCSI Request Packet was not
sent, so no additional status information is available.
@retval EFI_TIMEOUT A timeout occurred while waiting for the SCSI Request
Packet to execute. See HostAdapterStatus, TargetStatus,
SenseDataLength, and SenseData in that order for
additional status information.
**/
EFI_STATUS
EFIAPI
ScsiTestUnitReadyCommand (
IN EFI_SCSI_IO_PROTOCOL *ScsiIo,
IN UINT64 Timeout,
IN OUT VOID *SenseData, OPTIONAL
IN OUT UINT8 *SenseDataLength,
OUT UINT8 *HostAdapterStatus,
OUT UINT8 *TargetStatus
)
{
EFI_SCSI_IO_SCSI_REQUEST_PACKET CommandPacket;
UINT64 Lun;
UINT8 *Target;
UINT8 TargetArray[EFI_SCSI_TARGET_MAX_BYTES];
EFI_STATUS Status;
UINT8 Cdb[EFI_SCSI_OP_LENGTH_SIX];
ASSERT (SenseDataLength != NULL);
ASSERT (HostAdapterStatus != NULL);
ASSERT (TargetStatus != NULL);
ASSERT (ScsiIo != NULL);
ZeroMem (&CommandPacket, sizeof (EFI_SCSI_IO_SCSI_REQUEST_PACKET));
ZeroMem (Cdb, EFI_SCSI_OP_LENGTH_SIX);
CommandPacket.Timeout = Timeout;
CommandPacket.InDataBuffer = NULL;
CommandPacket.InTransferLength= 0;
CommandPacket.OutDataBuffer = NULL;
CommandPacket.OutTransferLength= 0;
CommandPacket.SenseData = SenseData;
CommandPacket.Cdb = Cdb;
//
// Fill Cdb for Test Unit Ready Command
//
Target = &TargetArray[0];
ScsiIo->GetDeviceLocation (ScsiIo, &Target, &Lun);
Cdb[0] = EFI_SCSI_OP_TEST_UNIT_READY;
Cdb[1] = (UINT8) (Lun & EFI_SCSI_LOGICAL_UNIT_NUMBER_MASK);
CommandPacket.CdbLength = (UINT8) EFI_SCSI_OP_LENGTH_SIX;
CommandPacket.SenseDataLength = *SenseDataLength;
Status = ScsiIo->ExecuteScsiCommand (ScsiIo, &CommandPacket, NULL);
*HostAdapterStatus = CommandPacket.HostAdapterStatus;
*TargetStatus = CommandPacket.TargetStatus;
*SenseDataLength = CommandPacket.SenseDataLength;
return Status;
}
/**
Execute Inquiry SCSI command on a specific SCSI target.
Executes the Inquiry command on the SCSI target specified by ScsiIo.
If Timeout is zero, then this function waits indefinitely for the command to complete.
If Timeout is greater than zero, then the command is executed and will timeout after Timeout 100 ns units.
If ScsiIo is NULL, then ASSERT().
If SenseDataLength is NULL, then ASSERT().
If HostAdapterStatus is NULL, then ASSERT().
If TargetStatus is NULL, then ASSERT().
If InquiryDataLength is NULL, then ASSERT().
@param[in] ScsiIo A pointer to the SCSI I/O Protocol instance
for the specific SCSI target.
@param[in] Timeout The timeout in 100 ns units to use for the
execution of this SCSI Request Packet. A Timeout
value of zero means that this function will wait
indefinitely for the SCSI Request Packet to execute.
If Timeout is greater than zero, then this function
will return EFI_TIMEOUT if the time required to
execute the SCSI Request Packet is greater than Timeout.
@param[in, out] SenseData A pointer to sense data that was generated
by the execution of the SCSI Request Packet.
This buffer must be allocated by the caller.
If SenseDataLength is 0, then this parameter
is optional and may be NULL.
@param[in, out] SenseDataLength On input, the length in bytes of the SenseData buffer.
On output, the number of bytes written to the SenseData buffer.
@param[out] HostAdapterStatus The status of the SCSI Host Controller that
produces the SCSI bus containing the SCSI
target specified by ScsiIo when the SCSI
Request Packet was executed. See the EFI
SCSI I/O Protocol in the UEFI Specification
for details on the possible return values.
@param[out] TargetStatus The status returned by the SCSI target specified
by ScsiIo when the SCSI Request Packet was
executed on the SCSI Host Controller.
See the EFI SCSI I/O Protocol in the UEFI
Specification for details on the possible
return values.
@param[in, out] InquiryDataBuffer A pointer to inquiry data that was generated
by the execution of the SCSI Request Packet.
This buffer must be allocated by the caller.
If InquiryDataLength is 0, then this parameter
is optional and may be NULL.
@param[in, out] InquiryDataLength On input, a pointer to the length in bytes
of the InquiryDataBuffer buffer.
On output, a pointer to the number of bytes
written to the InquiryDataBuffer buffer.
@param[in] EnableVitalProductData If TRUE, then the supported vital product
data is returned in InquiryDataBuffer.
If FALSE, then the standard inquiry data is
returned in InquiryDataBuffer.
@retval EFI_SUCCESS The command was executed successfully. See HostAdapterStatus,
TargetStatus, SenseDataLength, and SenseData in that order
for additional status information.
@retval EFI_BAD_BUFFER_SIZE The SCSI Request Packet was executed, but the entire
InquiryDataBuffer could not be transferred. The actual
number of bytes transferred is returned in InquiryDataLength.
@retval EFI_NOT_READY The SCSI Request Packet could not be sent because there
are too many SCSI Command Packets already queued.
The SCSI Request Packet was not sent, so no additional
status information is available. The caller may retry again later.
@retval EFI_DEVICE_ERROR A device error occurred while attempting to send SCSI
Request Packet. See HostAdapterStatus, TargetStatus,
SenseDataLength, and SenseData in that order for additional
status information.
@retval EFI_UNSUPPORTED The command described by the SCSI Request Packet is not
supported by the SCSI initiator(i.e., SCSI Host Controller).
The SCSI Request Packet was not sent, so no additional
status information is available.
@retval EFI_TIMEOUT A timeout occurred while waiting for the SCSI Request
Packet to execute. See HostAdapterStatus, TargetStatus,
SenseDataLength, and SenseData in that order for
additional status information.
**/
EFI_STATUS
EFIAPI
ScsiInquiryCommand (
IN EFI_SCSI_IO_PROTOCOL *ScsiIo,
IN UINT64 Timeout,
IN OUT VOID *SenseData, OPTIONAL
IN OUT UINT8 *SenseDataLength,
OUT UINT8 *HostAdapterStatus,
OUT UINT8 *TargetStatus,
IN OUT VOID *InquiryDataBuffer, OPTIONAL
IN OUT UINT32 *InquiryDataLength,
IN BOOLEAN EnableVitalProductData
)
{
EFI_SCSI_IO_SCSI_REQUEST_PACKET CommandPacket;
UINT64 Lun;
UINT8 *Target;
UINT8 TargetArray[EFI_SCSI_TARGET_MAX_BYTES];
EFI_STATUS Status;
UINT8 Cdb[EFI_SCSI_OP_LENGTH_SIX];
ASSERT (SenseDataLength != NULL);
ASSERT (HostAdapterStatus != NULL);
ASSERT (TargetStatus != NULL);
ASSERT (InquiryDataLength != NULL);
ASSERT (ScsiIo != NULL);
ZeroMem (&CommandPacket, sizeof (EFI_SCSI_IO_SCSI_REQUEST_PACKET));
ZeroMem (Cdb, EFI_SCSI_OP_LENGTH_SIX);
CommandPacket.Timeout = Timeout;
CommandPacket.InDataBuffer = InquiryDataBuffer;
CommandPacket.InTransferLength= *InquiryDataLength;
CommandPacket.SenseData = SenseData;
CommandPacket.SenseDataLength = *SenseDataLength;
CommandPacket.Cdb = Cdb;
Target = &TargetArray[0];
ScsiIo->GetDeviceLocation (ScsiIo, &Target, &Lun);
Cdb[0] = EFI_SCSI_OP_INQUIRY;
Cdb[1] = (UINT8) (Lun & EFI_SCSI_LOGICAL_UNIT_NUMBER_MASK);
if (EnableVitalProductData) {
Cdb[1] |= 0x01;
}
if (*InquiryDataLength > 0xff) {
*InquiryDataLength = 0xff;
}
Cdb[4] = (UINT8) (*InquiryDataLength);
CommandPacket.CdbLength = (UINT8) EFI_SCSI_OP_LENGTH_SIX;
CommandPacket.DataDirection = EFI_SCSI_DATA_IN;
Status = ScsiIo->ExecuteScsiCommand (ScsiIo, &CommandPacket, NULL);
*HostAdapterStatus = CommandPacket.HostAdapterStatus;
*TargetStatus = CommandPacket.TargetStatus;
*SenseDataLength = CommandPacket.SenseDataLength;
*InquiryDataLength = CommandPacket.InTransferLength;
return Status;
}
/**
Execute Mode Sense(10) SCSI command on a specific SCSI target.
Executes the SCSI Mode Sense(10) command on the SCSI target specified by ScsiIo.
If Timeout is zero, then this function waits indefinitely for the command to complete.
If Timeout is greater than zero, then the command is executed and will timeout
after Timeout 100 ns units. The DBDField, PageControl, and PageCode parameters
are used to construct the CDB for this SCSI command.
If ScsiIo is NULL, then ASSERT().
If SenseDataLength is NULL, then ASSERT().
If HostAdapterStatus is NULL, then ASSERT().
If TargetStatus is NULL, then ASSERT().
If DataLength is NULL, then ASSERT().
@param[in] ScsiIo A pointer to the SCSI I/O Protocol instance
for the specific SCSI target.
@param[in] Timeout The timeout in 100 ns units to use for the
execution of this SCSI Request Packet. A Timeout
value of zero means that this function will wait
indefinitely for the SCSI Request Packet to execute.
If Timeout is greater than zero, then this function
will return EFI_TIMEOUT if the time required to
execute the SCSI Request Packet is greater than Timeout.
@param[in, out] SenseData A pointer to sense data that was generated
by the execution of the SCSI Request Packet.
This buffer must be allocated by the caller.
If SenseDataLength is 0, then this parameter
is optional and may be NULL.
@param[in, out] SenseDataLength On input, the length in bytes of the SenseData buffer.
On output, the number of bytes written to the SenseData buffer.
@param[out] HostAdapterStatus The status of the SCSI Host Controller that
produces the SCSI bus containing the SCSI target
specified by ScsiIo when the SCSI Request Packet
was executed. See the EFI SCSI I/O Protocol in the
UEFI Specification for details on the possible
return values.
@param[out] TargetStatus The status returned by the SCSI target specified
by ScsiIo when the SCSI Request Packet was executed
on the SCSI Host Controller. See the EFI SCSI
I/O Protocol in the UEFI Specification for details
on the possible return values.
@param[in, out] DataBuffer A pointer to data that was generated by the
execution of the SCSI Request Packet. This
buffer must be allocated by the caller. If
DataLength is 0, then this parameter is optional
and may be NULL.
@param[in, out] DataLength On input, a pointer to the length in bytes of
the DataBuffer buffer. On output, a pointer
to the number of bytes written to the DataBuffer
buffer.
@param[in] DBDField Specifies the DBD field of the CDB for this SCSI Command.
@param[in] PageControl Specifies the PC field of the CDB for this SCSI Command.
@param[in] PageCode Specifies the Page Control field of the CDB for this SCSI Command.
@retval EFI_SUCCESS The command was executed successfully.
See HostAdapterStatus, TargetStatus, SenseDataLength,
and SenseData in that order for additional status information.
@retval EFI_BAD_BUFFER_SIZE The SCSI Request Packet was executed, but the
entire DataBuffer could not be transferred.
The actual number of bytes transferred is returned
in DataLength.
@retval EFI_NOT_READY The SCSI Request Packet could not be sent because
there are too many SCSI Command Packets already queued.
The SCSI Request Packet was not sent, so no additional
status information is available. The caller may retry
again later.
@retval EFI_DEVICE_ERROR A device error occurred while attempting to send
SCSI Request Packet. See HostAdapterStatus, TargetStatus,
SenseDataLength, and SenseData in that order for
additional status information.
@retval EFI_UNSUPPORTED The command described by the SCSI Request Packet
is not supported by the SCSI initiator(i.e., SCSI
Host Controller). The SCSI Request Packet was not
sent, so no additional status information is available.
@retval EFI_TIMEOUT A timeout occurred while waiting for the SCSI
Request Packet to execute. See HostAdapterStatus,
TargetStatus, SenseDataLength, and SenseData in that
order for additional status information.
**/
EFI_STATUS
EFIAPI
ScsiModeSense10Command (
IN EFI_SCSI_IO_PROTOCOL *ScsiIo,
IN UINT64 Timeout,
IN OUT VOID *SenseData, OPTIONAL
IN OUT UINT8 *SenseDataLength,
OUT UINT8 *HostAdapterStatus,
OUT UINT8 *TargetStatus,
IN OUT VOID *DataBuffer, OPTIONAL
IN OUT UINT32 *DataLength,
IN UINT8 DBDField, OPTIONAL
IN UINT8 PageControl,
IN UINT8 PageCode
)
{
EFI_SCSI_IO_SCSI_REQUEST_PACKET CommandPacket;
UINT64 Lun;
UINT8 *Target;
UINT8 TargetArray[EFI_SCSI_TARGET_MAX_BYTES];
EFI_STATUS Status;
UINT8 Cdb[EFI_SCSI_OP_LENGTH_TEN];
ASSERT (SenseDataLength != NULL);
ASSERT (HostAdapterStatus != NULL);
ASSERT (TargetStatus != NULL);
ASSERT (DataLength != NULL);
ASSERT (ScsiIo != NULL);
ZeroMem (&CommandPacket, sizeof (EFI_SCSI_IO_SCSI_REQUEST_PACKET));
ZeroMem (Cdb, EFI_SCSI_OP_LENGTH_TEN);
CommandPacket.Timeout = Timeout;
CommandPacket.InDataBuffer = DataBuffer;
CommandPacket.SenseData = SenseData;
CommandPacket.InTransferLength= *DataLength;
CommandPacket.Cdb = Cdb;
//
// Fill Cdb for Mode Sense (10) Command
//
Target = &TargetArray[0];
ScsiIo->GetDeviceLocation (ScsiIo, &Target, &Lun);
Cdb[0] = EFI_SCSI_OP_MODE_SEN10;
//
// DBDField is in Cdb[1] bit3 of (bit7..0)
//
Cdb[1] = (UINT8) ((Lun & EFI_SCSI_LOGICAL_UNIT_NUMBER_MASK) + ((DBDField << 3) & 0x08));
//
// PageControl is in Cdb[2] bit7..6, PageCode is in Cdb[2] bit5..0
//
Cdb[2] = (UINT8) ((PageControl & 0xc0) | (PageCode & 0x3f));
Cdb[7] = (UINT8) (*DataLength >> 8);
Cdb[8] = (UINT8) (*DataLength);
CommandPacket.CdbLength = EFI_SCSI_OP_LENGTH_TEN;
CommandPacket.DataDirection = EFI_SCSI_DATA_IN;
CommandPacket.SenseDataLength = *SenseDataLength;
Status = ScsiIo->ExecuteScsiCommand (ScsiIo, &CommandPacket, NULL);
*HostAdapterStatus = CommandPacket.HostAdapterStatus;
*TargetStatus = CommandPacket.TargetStatus;
*SenseDataLength = CommandPacket.SenseDataLength;
*DataLength = CommandPacket.InTransferLength;
return Status;
}
/**
Execute Request Sense SCSI command on a specific SCSI target.
Executes the Request Sense command on the SCSI target specified by ScsiIo.
If Timeout is zero, then this function waits indefinitely for the command to complete.
If Timeout is greater than zero, then the command is executed and will timeout after Timeout 100 ns units.
If ScsiIo is NULL, then ASSERT().
If SenseDataLength is NULL, then ASSERT().
If HostAdapterStatus is NULL, then ASSERT().
If TargetStatus is NULL, then ASSERT().
@param[in] ScsiIo A pointer to SCSI IO protocol.
@param[in] Timeout The length of timeout period.
@param[in, out] SenseData A pointer to output sense data.
@param[in, out] SenseDataLength The length of output sense data.
@param[out] HostAdapterStatus The status of Host Adapter.
@param[out] TargetStatus The status of the target.
@retval EFI_SUCCESS Command is executed successfully.
@retval EFI_NOT_READY The SCSI Request Packet could not be sent because there are
too many SCSI Command Packets already queued.
@retval EFI_DEVICE_ERROR A device error occurred while attempting to send SCSI Request Packet.
@retval EFI_UNSUPPORTED The command described by the SCSI Request Packet is not supported by
the SCSI initiator(i.e., SCSI Host Controller)
@retval EFI_TIMEOUT A timeout occurred while waiting for the SCSI Request Packet to execute.
**/
EFI_STATUS
EFIAPI
ScsiRequestSenseCommand (
IN EFI_SCSI_IO_PROTOCOL *ScsiIo,
IN UINT64 Timeout,
IN OUT VOID *SenseData, OPTIONAL
IN OUT UINT8 *SenseDataLength,
OUT UINT8 *HostAdapterStatus,
OUT UINT8 *TargetStatus
)
{
EFI_SCSI_IO_SCSI_REQUEST_PACKET CommandPacket;
UINT64 Lun;
UINT8 *Target;
UINT8 TargetArray[EFI_SCSI_TARGET_MAX_BYTES];
EFI_STATUS Status;
UINT8 Cdb[EFI_SCSI_OP_LENGTH_SIX];
ASSERT (SenseDataLength != NULL);
ASSERT (HostAdapterStatus != NULL);
ASSERT (TargetStatus != NULL);
ASSERT (ScsiIo != NULL);
ZeroMem (&CommandPacket, sizeof (EFI_SCSI_IO_SCSI_REQUEST_PACKET));
ZeroMem (Cdb, EFI_SCSI_OP_LENGTH_SIX);
CommandPacket.Timeout = Timeout;
CommandPacket.InDataBuffer = SenseData;
CommandPacket.SenseData = NULL;
CommandPacket.InTransferLength= *SenseDataLength;
CommandPacket.Cdb = Cdb;
//
// Fill Cdb for Request Sense Command
//
Target = &TargetArray[0];
ScsiIo->GetDeviceLocation (ScsiIo, &Target, &Lun);
Cdb[0] = EFI_SCSI_OP_REQUEST_SENSE;
Cdb[1] = (UINT8) (Lun & EFI_SCSI_LOGICAL_UNIT_NUMBER_MASK);
Cdb[4] = (UINT8) (*SenseDataLength);
CommandPacket.CdbLength = (UINT8) EFI_SCSI_OP_LENGTH_SIX;
CommandPacket.DataDirection = EFI_SCSI_DATA_IN;
CommandPacket.SenseDataLength = 0;
Status = ScsiIo->ExecuteScsiCommand (ScsiIo, &CommandPacket, NULL);
*HostAdapterStatus = CommandPacket.HostAdapterStatus;
*TargetStatus = CommandPacket.TargetStatus;
*SenseDataLength = (UINT8) CommandPacket.InTransferLength;
return Status;
}
/**
Execute Read Capacity SCSI command on a specific SCSI target.
Executes the SCSI Read Capacity command on the SCSI target specified by ScsiIo.
If Timeout is zero, then this function waits indefinitely for the command to complete.
If Timeout is greater than zero, then the command is executed and will timeout after
Timeout 100 ns units. The Pmi parameter is used to construct the CDB for this SCSI command.
If ScsiIo is NULL, then ASSERT().
If SenseDataLength is NULL, then ASSERT().
If HostAdapterStatus is NULL, then ASSERT().
If TargetStatus is NULL, then ASSERT().
If DataLength is NULL, then ASSERT().
@param[in] ScsiIo A pointer to SCSI IO protocol.
@param[in] Timeout The length of timeout period.
@param[in, out] SenseData A pointer to output sense data.
@param[in, out] SenseDataLength The length of output sense data.
@param[out] HostAdapterStatus The status of Host Adapter.
@param[out] TargetStatus The status of the target.
@param[in, out] DataBuffer A pointer to a data buffer.
@param[in, out] DataLength The length of data buffer.
@param[in] Pmi Partial medium indicator.
@retval EFI_SUCCESS Command is executed successfully.
@retval EFI_BAD_BUFFER_SIZE The SCSI Request Packet was executed, but the entire
DataBuffer could not be transferred. The actual
number of bytes transferred is returned in DataLength.
@retval EFI_NOT_READY The SCSI Request Packet could not be sent because
there are too many SCSI Command Packets already queued.
@retval EFI_DEVICE_ERROR A device error occurred while attempting to send SCSI Request Packet.
@retval EFI_UNSUPPORTED The command described by the SCSI Request Packet
is not supported by the SCSI initiator(i.e., SCSI Host Controller)
@retval EFI_TIMEOUT A timeout occurred while waiting for the SCSI Request Packet to execute.
**/
EFI_STATUS
EFIAPI
ScsiReadCapacityCommand (
IN EFI_SCSI_IO_PROTOCOL *ScsiIo,
IN UINT64 Timeout,
IN OUT VOID *SenseData, OPTIONAL
IN OUT UINT8 *SenseDataLength,
OUT UINT8 *HostAdapterStatus,
OUT UINT8 *TargetStatus,
IN OUT VOID *DataBuffer, OPTIONAL
IN OUT UINT32 *DataLength,
IN BOOLEAN Pmi
)
{
EFI_SCSI_IO_SCSI_REQUEST_PACKET CommandPacket;
UINT64 Lun;
UINT8 *Target;
UINT8 TargetArray[EFI_SCSI_TARGET_MAX_BYTES];
EFI_STATUS Status;
UINT8 Cdb[EFI_SCSI_OP_LENGTH_TEN];
ASSERT (SenseDataLength != NULL);
ASSERT (HostAdapterStatus != NULL);
ASSERT (TargetStatus != NULL);
ASSERT (DataLength != NULL);
ASSERT (ScsiIo != NULL);
ZeroMem (&CommandPacket, sizeof (EFI_SCSI_IO_SCSI_REQUEST_PACKET));
ZeroMem (Cdb, EFI_SCSI_OP_LENGTH_TEN);
CommandPacket.Timeout = Timeout;
CommandPacket.InDataBuffer = DataBuffer;
CommandPacket.SenseData = SenseData;
CommandPacket.InTransferLength= *DataLength;
CommandPacket.Cdb = Cdb;
//
// Fill Cdb for Read Capacity Command
//
Target = &TargetArray[0];
ScsiIo->GetDeviceLocation (ScsiIo, &Target, &Lun);
Cdb[0] = EFI_SCSI_OP_READ_CAPACITY;
Cdb[1] = (UINT8) (Lun & EFI_SCSI_LOGICAL_UNIT_NUMBER_MASK);
if (!Pmi) {
//
// Partial medium indicator,if Pmi is FALSE, the Cdb.2 ~ Cdb.5 MUST BE ZERO.
//
ZeroMem ((Cdb + 2), 4);
} else {
Cdb[8] |= 0x01;
}
CommandPacket.CdbLength = EFI_SCSI_OP_LENGTH_TEN;
CommandPacket.DataDirection = EFI_SCSI_DATA_IN;
CommandPacket.SenseDataLength = *SenseDataLength;
Status = ScsiIo->ExecuteScsiCommand (ScsiIo, &CommandPacket, NULL);
*HostAdapterStatus = CommandPacket.HostAdapterStatus;
*TargetStatus = CommandPacket.TargetStatus;
*SenseDataLength = CommandPacket.SenseDataLength;
*DataLength = CommandPacket.InTransferLength;
return Status;
}
/**
Function to submit read capacity16 command.
@param ScsiIo A pointer to SCSI IO protocol.
@param Timeout The length of timeout period.
@param SenseData A pointer to output sense data.
@param SenseDataLength The length of output sense data.
@param HostAdapterStatus The status of Host Adapter.
@param TargetStatus The status of the target.
@param DataBuffer A pointer to a data buffer.
@param DataLength The length of data buffer.
@param Pmi Partial medium indicator.
@retval EFI_SUCCESS The status of the unit is tested successfully.
@retval EFI_BAD_BUFFER_SIZE The SCSI Request Packet was executed,
but the entire DataBuffer could not be transferred.
The actual number of bytes transferred is returned
in TransferLength.
@retval EFI_NOT_READY The SCSI Request Packet could not be sent because
there are too many SCSI Command Packets already
queued.
@retval EFI_DEVICE_ERROR A device error occurred while attempting to send
the SCSI Request Packet.
@retval EFI_INVALID_PARAMETER The contents of CommandPacket are invalid.
@retval EFI_UNSUPPORTED The command described by the SCSI Request Packet
is not supported by the SCSI initiator(i.e., SCSI
Host Controller).
@retval EFI_TIMEOUT A timeout occurred while waiting for the SCSI
Request Packet to execute.
**/
EFI_STATUS
EFIAPI
ScsiReadCapacity16Command (
IN EFI_SCSI_IO_PROTOCOL *ScsiIo,
IN UINT64 Timeout,
IN VOID *SenseData,
IN OUT UINT8 *SenseDataLength,
OUT UINT8 *HostAdapterStatus,
OUT UINT8 *TargetStatus,
OUT VOID *DataBuffer,
IN OUT UINT32 *DataLength,
IN BOOLEAN Pmi
)
{
EFI_SCSI_IO_SCSI_REQUEST_PACKET CommandPacket;
UINT64 Lun;
UINT8 *Target;
UINT8 TargetArray[EFI_SCSI_TARGET_MAX_BYTES];
EFI_STATUS Status;
UINT8 Cdb[16];
ZeroMem (&CommandPacket, sizeof (EFI_SCSI_IO_SCSI_REQUEST_PACKET));
ZeroMem (Cdb, 16);
CommandPacket.Timeout = Timeout;
CommandPacket.InDataBuffer = DataBuffer;
CommandPacket.SenseData = SenseData;
CommandPacket.InTransferLength= *DataLength;
CommandPacket.Cdb = Cdb;
//
// Fill Cdb for Read Capacity Command
//
Target = &TargetArray[0];
ScsiIo->GetDeviceLocation (ScsiIo, &Target, &Lun);
Cdb[0] = EFI_SCSI_OP_READ_CAPACITY16;
Cdb[1] = 0x10;
if (!Pmi) {
//
// Partial medium indicator,if Pmi is FALSE, the Cdb.2 ~ Cdb.9 MUST BE ZERO.
//
ZeroMem ((Cdb + 2), 8);
} else {
Cdb[14] |= 0x01;
}
Cdb[13] = 0x20;
CommandPacket.CdbLength = 16;
CommandPacket.DataDirection = EFI_SCSI_DATA_IN;
CommandPacket.SenseDataLength = *SenseDataLength;
Status = ScsiIo->ExecuteScsiCommand (ScsiIo, &CommandPacket, NULL);
*HostAdapterStatus = CommandPacket.HostAdapterStatus;
*TargetStatus = CommandPacket.TargetStatus;
*SenseDataLength = CommandPacket.SenseDataLength;
*DataLength = CommandPacket.InTransferLength;
return Status;
}
/**
Execute Read(10) SCSI command on a specific SCSI target.
Executes the SCSI Read(10) command on the SCSI target specified by ScsiIo.
If Timeout is zero, then this function waits indefinitely for the command to complete.
If Timeout is greater than zero, then the command is executed and will timeout
after Timeout 100 ns units. The StartLba and SectorSize parameters are used to
construct the CDB for this SCSI command.
If ScsiIo is NULL, then ASSERT().
If SenseDataLength is NULL, then ASSERT().
If HostAdapterStatus is NULL, then ASSERT().
If TargetStatus is NULL, then ASSERT().
If DataLength is NULL, then ASSERT().
@param[in] ScsiIo A pointer to SCSI IO protocol.
@param[in] Timeout The length of timeout period.
@param[in, out] SenseData A pointer to output sense data.
@param[in, out] SenseDataLength The length of output sense data.
@param[out] HostAdapterStatus The status of Host Adapter.
@param[out] TargetStatus The status of the target.
@param[in, out] DataBuffer Read 10 command data.
@param[in, out] DataLength The length of data buffer.
@param[in] StartLba The start address of LBA.
@param[in] SectorSize The sector size.
@retval EFI_SUCCESS Command is executed successfully.
@retval EFI_BAD_BUFFER_SIZE The SCSI Request Packet was executed, but the entire DataBuffer could
not be transferred. The actual number of bytes transferred is returned in DataLength.
@retval EFI_NOT_READY The SCSI Request Packet could not be sent because there are too many
SCSI Command Packets already queued.
@retval EFI_DEVICE_ERROR A device error occurred while attempting to send SCSI Request Packet.
@retval EFI_UNSUPPORTED The command described by the SCSI Request Packet is not supported by
the SCSI initiator(i.e., SCSI Host Controller)
@retval EFI_TIMEOUT A timeout occurred while waiting for the SCSI Request Packet to execute.
**/
EFI_STATUS
EFIAPI
ScsiRead10Command (
IN EFI_SCSI_IO_PROTOCOL *ScsiIo,
IN UINT64 Timeout,
IN OUT VOID *SenseData, OPTIONAL
IN OUT UINT8 *SenseDataLength,
OUT UINT8 *HostAdapterStatus,
OUT UINT8 *TargetStatus,
IN OUT VOID *DataBuffer, OPTIONAL
IN OUT UINT32 *DataLength,
IN UINT32 StartLba,
IN UINT32 SectorSize
)
{
EFI_SCSI_IO_SCSI_REQUEST_PACKET CommandPacket;
UINT64 Lun;
UINT8 *Target;
UINT8 TargetArray[EFI_SCSI_TARGET_MAX_BYTES];
EFI_STATUS Status;
UINT8 Cdb[EFI_SCSI_OP_LENGTH_TEN];
ASSERT (SenseDataLength != NULL);
ASSERT (HostAdapterStatus != NULL);
ASSERT (TargetStatus != NULL);
ASSERT (DataLength != NULL);
ASSERT (ScsiIo != NULL);
ZeroMem (&CommandPacket, sizeof (EFI_SCSI_IO_SCSI_REQUEST_PACKET));
ZeroMem (Cdb, EFI_SCSI_OP_LENGTH_TEN);
CommandPacket.Timeout = Timeout;
CommandPacket.InDataBuffer = DataBuffer;
CommandPacket.SenseData = SenseData;
CommandPacket.InTransferLength= *DataLength;
CommandPacket.Cdb = Cdb;
//
// Fill Cdb for Read (10) Command
//
Target = &TargetArray[0];
ScsiIo->GetDeviceLocation (ScsiIo, &Target, &Lun);
Cdb[0] = EFI_SCSI_OP_READ10;
Cdb[1] = (UINT8) (Lun & EFI_SCSI_LOGICAL_UNIT_NUMBER_MASK);
Cdb[2] = (UINT8) (StartLba >> 24);
Cdb[3] = (UINT8) (StartLba >> 16);
Cdb[4] = (UINT8) (StartLba >> 8);
Cdb[5] = (UINT8) (StartLba & 0xff);
Cdb[7] = (UINT8) (SectorSize >> 8);
Cdb[8] = (UINT8) (SectorSize & 0xff);
CommandPacket.CdbLength = EFI_SCSI_OP_LENGTH_TEN;
CommandPacket.DataDirection = EFI_SCSI_DATA_IN;
CommandPacket.SenseDataLength = *SenseDataLength;
Status = ScsiIo->ExecuteScsiCommand (ScsiIo, &CommandPacket, NULL);
*HostAdapterStatus = CommandPacket.HostAdapterStatus;
*TargetStatus = CommandPacket.TargetStatus;
*SenseDataLength = CommandPacket.SenseDataLength;
*DataLength = CommandPacket.InTransferLength;
return Status;
}
/**
Execute Write(10) SCSI command on a specific SCSI target.
Executes the SCSI Write(10) command on the SCSI target specified by ScsiIo.
If Timeout is zero, then this function waits indefinitely for the command to complete.
If Timeout is greater than zero, then the command is executed and will timeout after
Timeout 100 ns units. The StartLba and SectorSize parameters are used to construct
the CDB for this SCSI command.
If ScsiIo is NULL, then ASSERT().
If SenseDataLength is NULL, then ASSERT().
If HostAdapterStatus is NULL, then ASSERT().
If TargetStatus is NULL, then ASSERT().
If DataLength is NULL, then ASSERT().
@param[in] ScsiIo SCSI IO Protocol to use
@param[in] Timeout The length of timeout period.
@param[in, out] SenseData A pointer to output sense data.
@param[in, out] SenseDataLength The length of output sense data.
@param[out] HostAdapterStatus The status of Host Adapter.
@param[out] TargetStatus The status of the target.
@param[in, out] DataBuffer A pointer to a data buffer.
@param[in, out] DataLength The length of data buffer.
@param[in] StartLba The start address of LBA.
@param[in] SectorSize The sector size.
@retval EFI_SUCCESS Command is executed successfully.
@retval EFI_BAD_BUFFER_SIZE The SCSI Request Packet was executed, but the entire DataBuffer could
not be transferred. The actual number of bytes transferred is returned in DataLength.
@retval EFI_NOT_READY The SCSI Request Packet could not be sent because there are too many
SCSI Command Packets already queued.
@retval EFI_DEVICE_ERROR A device error occurred while attempting to send SCSI Request Packet.
@retval EFI_UNSUPPORTED The command described by the SCSI Request Packet is not supported by
the SCSI initiator(i.e., SCSI Host Controller)
@retval EFI_TIMEOUT A timeout occurred while waiting for the SCSI Request Packet to execute.
**/
EFI_STATUS
EFIAPI
ScsiWrite10Command (
IN EFI_SCSI_IO_PROTOCOL *ScsiIo,
IN UINT64 Timeout,
IN OUT VOID *SenseData, OPTIONAL
IN OUT UINT8 *SenseDataLength,
OUT UINT8 *HostAdapterStatus,
OUT UINT8 *TargetStatus,
IN OUT VOID *DataBuffer, OPTIONAL
IN OUT UINT32 *DataLength,
IN UINT32 StartLba,
IN UINT32 SectorSize
)
{
EFI_SCSI_IO_SCSI_REQUEST_PACKET CommandPacket;
UINT64 Lun;
UINT8 *Target;
UINT8 TargetArray[EFI_SCSI_TARGET_MAX_BYTES];
EFI_STATUS Status;
UINT8 Cdb[EFI_SCSI_OP_LENGTH_TEN];
ASSERT (SenseDataLength != NULL);
ASSERT (HostAdapterStatus != NULL);
ASSERT (TargetStatus != NULL);
ASSERT (DataLength != NULL);
ASSERT (ScsiIo != NULL);
ZeroMem (&CommandPacket, sizeof (EFI_SCSI_IO_SCSI_REQUEST_PACKET));
ZeroMem (Cdb, EFI_SCSI_OP_LENGTH_TEN);
CommandPacket.Timeout = Timeout;
CommandPacket.OutDataBuffer = DataBuffer;
CommandPacket.SenseData = SenseData;
CommandPacket.OutTransferLength= *DataLength;
CommandPacket.Cdb = Cdb;
//
// Fill Cdb for Write (10) Command
//
Target = &TargetArray[0];
ScsiIo->GetDeviceLocation (ScsiIo, &Target, &Lun);
Cdb[0] = EFI_SCSI_OP_WRITE10;
Cdb[1] = (UINT8) (Lun & EFI_SCSI_LOGICAL_UNIT_NUMBER_MASK);
Cdb[2] = (UINT8) (StartLba >> 24);
Cdb[3] = (UINT8) (StartLba >> 16);
Cdb[4] = (UINT8) (StartLba >> 8);
Cdb[5] = (UINT8) StartLba;
Cdb[7] = (UINT8) (SectorSize >> 8);
Cdb[8] = (UINT8) SectorSize;
CommandPacket.CdbLength = EFI_SCSI_OP_LENGTH_TEN;
CommandPacket.DataDirection = EFI_SCSI_DATA_OUT;
CommandPacket.SenseDataLength = *SenseDataLength;
Status = ScsiIo->ExecuteScsiCommand (ScsiIo, &CommandPacket, NULL);
*HostAdapterStatus = CommandPacket.HostAdapterStatus;
*TargetStatus = CommandPacket.TargetStatus;
*SenseDataLength = CommandPacket.SenseDataLength;
*DataLength = CommandPacket.OutTransferLength;
return Status;
}
|
