forked from torvalds/linux
-
Notifications
You must be signed in to change notification settings - Fork 0
/
mptspi.c
1619 lines (1357 loc) · 42.8 KB
/
mptspi.c
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
/*
* linux/drivers/message/fusion/mptspi.c
* For use with LSI PCI chip/adapter(s)
* running LSI Fusion MPT (Message Passing Technology) firmware.
*
* Copyright (c) 1999-2008 LSI Corporation
* (mailto:[email protected])
*
*/
/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
/*
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; version 2 of the License.
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.
NO WARRANTY
THE PROGRAM IS PROVIDED ON AN "AS IS" BASIS, WITHOUT WARRANTIES OR
CONDITIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED INCLUDING, WITHOUT
LIMITATION, ANY WARRANTIES OR CONDITIONS OF TITLE, NON-INFRINGEMENT,
MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. Each Recipient is
solely responsible for determining the appropriateness of using and
distributing the Program and assumes all risks associated with its
exercise of rights under this Agreement, including but not limited to
the risks and costs of program errors, damage to or loss of data,
programs or equipment, and unavailability or interruption of operations.
DISCLAIMER OF LIABILITY
NEITHER RECIPIENT NOR ANY CONTRIBUTORS SHALL HAVE ANY LIABILITY FOR ANY
DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
DAMAGES (INCLUDING WITHOUT LIMITATION LOST PROFITS), HOWEVER CAUSED AND
ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR
TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE
USE OR DISTRIBUTION OF THE PROGRAM OR THE EXERCISE OF ANY RIGHTS GRANTED
HEREUNDER, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGES
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
*/
/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
#include <linux/module.h>
#include <linux/kernel.h>
#include <linux/slab.h>
#include <linux/init.h>
#include <linux/errno.h>
#include <linux/kdev_t.h>
#include <linux/blkdev.h>
#include <linux/delay.h> /* for mdelay */
#include <linux/interrupt.h> /* needed for in_interrupt() proto */
#include <linux/reboot.h> /* notifier code */
#include <linux/workqueue.h>
#include <linux/raid_class.h>
#include <scsi/scsi.h>
#include <scsi/scsi_cmnd.h>
#include <scsi/scsi_device.h>
#include <scsi/scsi_host.h>
#include <scsi/scsi_tcq.h>
#include <scsi/scsi_transport.h>
#include <scsi/scsi_transport_spi.h>
#include <scsi/scsi_dbg.h>
#include "mptbase.h"
#include "mptscsih.h"
/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
#define my_NAME "Fusion MPT SPI Host driver"
#define my_VERSION MPT_LINUX_VERSION_COMMON
#define MYNAM "mptspi"
MODULE_AUTHOR(MODULEAUTHOR);
MODULE_DESCRIPTION(my_NAME);
MODULE_LICENSE("GPL");
MODULE_VERSION(my_VERSION);
/* Command line args */
static int mpt_saf_te = MPTSCSIH_SAF_TE;
module_param(mpt_saf_te, int, 0);
MODULE_PARM_DESC(mpt_saf_te, " Force enabling SEP Processor: enable=1 (default=MPTSCSIH_SAF_TE=0)");
static void mptspi_write_offset(struct scsi_target *, int);
static void mptspi_write_width(struct scsi_target *, int);
static int mptspi_write_spi_device_pg1(struct scsi_target *,
struct _CONFIG_PAGE_SCSI_DEVICE_1 *);
static struct scsi_transport_template *mptspi_transport_template = NULL;
static u8 mptspiDoneCtx = MPT_MAX_PROTOCOL_DRIVERS;
static u8 mptspiTaskCtx = MPT_MAX_PROTOCOL_DRIVERS;
static u8 mptspiInternalCtx = MPT_MAX_PROTOCOL_DRIVERS; /* Used only for internal commands */
/**
* mptspi_setTargetNegoParms - Update the target negotiation parameters
* @hd: Pointer to a SCSI Host Structure
* @target: per target private data
* @sdev: SCSI device
*
* Update the target negotiation parameters based on the the Inquiry
* data, adapter capabilities, and NVRAM settings.
**/
static void
mptspi_setTargetNegoParms(MPT_SCSI_HOST *hd, VirtTarget *target,
struct scsi_device *sdev)
{
MPT_ADAPTER *ioc = hd->ioc;
SpiCfgData *pspi_data = &ioc->spi_data;
int id = (int) target->id;
int nvram;
u8 width = MPT_NARROW;
u8 factor = MPT_ASYNC;
u8 offset = 0;
u8 nfactor;
u8 noQas = 1;
target->negoFlags = pspi_data->noQas;
if (sdev->scsi_level < SCSI_2) {
width = 0;
factor = MPT_ULTRA2;
offset = pspi_data->maxSyncOffset;
target->tflags &= ~MPT_TARGET_FLAGS_Q_YES;
} else {
if (scsi_device_wide(sdev))
width = 1;
if (scsi_device_sync(sdev)) {
factor = pspi_data->minSyncFactor;
if (!scsi_device_dt(sdev))
factor = MPT_ULTRA2;
else {
if (!scsi_device_ius(sdev) &&
!scsi_device_qas(sdev))
factor = MPT_ULTRA160;
else {
factor = MPT_ULTRA320;
if (scsi_device_qas(sdev)) {
ddvprintk(ioc,
printk(MYIOC_s_DEBUG_FMT "Enabling QAS due to "
"byte56=%02x on id=%d!\n", ioc->name,
scsi_device_qas(sdev), id));
noQas = 0;
}
if (sdev->type == TYPE_TAPE &&
scsi_device_ius(sdev))
target->negoFlags |= MPT_TAPE_NEGO_IDP;
}
}
offset = pspi_data->maxSyncOffset;
/* If RAID, never disable QAS
* else if non RAID, do not disable
* QAS if bit 1 is set
* bit 1 QAS support, non-raid only
* bit 0 IU support
*/
if (target->raidVolume == 1)
noQas = 0;
} else {
factor = MPT_ASYNC;
offset = 0;
}
}
if (!sdev->tagged_supported)
target->tflags &= ~MPT_TARGET_FLAGS_Q_YES;
/* Update tflags based on NVRAM settings. (SCSI only)
*/
if (pspi_data->nvram && (pspi_data->nvram[id] != MPT_HOST_NVRAM_INVALID)) {
nvram = pspi_data->nvram[id];
nfactor = (nvram & MPT_NVRAM_SYNC_MASK) >> 8;
if (width)
width = nvram & MPT_NVRAM_WIDE_DISABLE ? 0 : 1;
if (offset > 0) {
/* Ensure factor is set to the
* maximum of: adapter, nvram, inquiry
*/
if (nfactor) {
if (nfactor < pspi_data->minSyncFactor )
nfactor = pspi_data->minSyncFactor;
factor = max(factor, nfactor);
if (factor == MPT_ASYNC)
offset = 0;
} else {
offset = 0;
factor = MPT_ASYNC;
}
} else {
factor = MPT_ASYNC;
}
}
/* Make sure data is consistent
*/
if ((!width) && (factor < MPT_ULTRA2))
factor = MPT_ULTRA2;
/* Save the data to the target structure.
*/
target->minSyncFactor = factor;
target->maxOffset = offset;
target->maxWidth = width;
spi_min_period(scsi_target(sdev)) = factor;
spi_max_offset(scsi_target(sdev)) = offset;
spi_max_width(scsi_target(sdev)) = width;
target->tflags |= MPT_TARGET_FLAGS_VALID_NEGO;
/* Disable unused features.
*/
if (!width)
target->negoFlags |= MPT_TARGET_NO_NEGO_WIDE;
if (!offset)
target->negoFlags |= MPT_TARGET_NO_NEGO_SYNC;
if ( factor > MPT_ULTRA320 )
noQas = 0;
if (noQas && (pspi_data->noQas == 0)) {
pspi_data->noQas |= MPT_TARGET_NO_NEGO_QAS;
target->negoFlags |= MPT_TARGET_NO_NEGO_QAS;
/* Disable QAS in a mixed configuration case
*/
ddvprintk(ioc, printk(MYIOC_s_DEBUG_FMT
"Disabling QAS due to noQas=%02x on id=%d!\n", ioc->name, noQas, id));
}
}
/**
* mptspi_writeIOCPage4 - write IOC Page 4
* @hd: Pointer to a SCSI Host Structure
* @channel: channel number
* @id: write IOC Page4 for this ID & Bus
*
* Return: -EAGAIN if unable to obtain a Message Frame
* or 0 if success.
*
* Remark: We do not wait for a return, write pages sequentially.
**/
static int
mptspi_writeIOCPage4(MPT_SCSI_HOST *hd, u8 channel , u8 id)
{
MPT_ADAPTER *ioc = hd->ioc;
Config_t *pReq;
IOCPage4_t *IOCPage4Ptr;
MPT_FRAME_HDR *mf;
dma_addr_t dataDma;
u32 flagsLength;
int ii;
/* Get a MF for this command.
*/
if ((mf = mpt_get_msg_frame(ioc->DoneCtx, ioc)) == NULL) {
dfailprintk(ioc, printk(MYIOC_s_WARN_FMT
"writeIOCPage4 : no msg frames!\n",ioc->name));
return -EAGAIN;
}
/* Set the request and the data pointers.
* Place data at end of MF.
*/
pReq = (Config_t *)mf;
/* Complete the request frame (same for all requests).
*/
pReq->Action = MPI_CONFIG_ACTION_PAGE_WRITE_CURRENT;
pReq->Reserved = 0;
pReq->ChainOffset = 0;
pReq->Function = MPI_FUNCTION_CONFIG;
pReq->ExtPageLength = 0;
pReq->ExtPageType = 0;
pReq->MsgFlags = 0;
for (ii=0; ii < 8; ii++) {
pReq->Reserved2[ii] = 0;
}
IOCPage4Ptr = ioc->spi_data.pIocPg4;
dataDma = ioc->spi_data.IocPg4_dma;
ii = IOCPage4Ptr->ActiveSEP++;
IOCPage4Ptr->SEP[ii].SEPTargetID = id;
IOCPage4Ptr->SEP[ii].SEPBus = channel;
pReq->Header = IOCPage4Ptr->Header;
pReq->PageAddress = cpu_to_le32(id | (channel << 8 ));
/* Add a SGE to the config request.
*/
flagsLength = MPT_SGE_FLAGS_SSIMPLE_WRITE |
(IOCPage4Ptr->Header.PageLength + ii) * 4;
ioc->add_sge((char *)&pReq->PageBufferSGE, flagsLength, dataDma);
ddvprintk(ioc, printk(MYIOC_s_DEBUG_FMT
"writeIOCPage4: MaxSEP=%d ActiveSEP=%d id=%d bus=%d\n",
ioc->name, IOCPage4Ptr->MaxSEP, IOCPage4Ptr->ActiveSEP, id, channel));
mpt_put_msg_frame(ioc->DoneCtx, ioc, mf);
return 0;
}
/**
* mptspi_initTarget - Target, LUN alloc/free functionality.
* @hd: Pointer to MPT_SCSI_HOST structure
* @vtarget: per target private data
* @sdev: SCSI device
*
* NOTE: It's only SAFE to call this routine if data points to
* sane & valid STANDARD INQUIRY data!
*
* Allocate and initialize memory for this target.
* Save inquiry data.
*
**/
static void
mptspi_initTarget(MPT_SCSI_HOST *hd, VirtTarget *vtarget,
struct scsi_device *sdev)
{
/* Is LUN supported? If so, upper 2 bits will be 0
* in first byte of inquiry data.
*/
if (sdev->inq_periph_qual != 0)
return;
if (vtarget == NULL)
return;
vtarget->type = sdev->type;
if ((sdev->type == TYPE_PROCESSOR) && (hd->ioc->spi_data.Saf_Te)) {
/* Treat all Processors as SAF-TE if
* command line option is set */
vtarget->tflags |= MPT_TARGET_FLAGS_SAF_TE_ISSUED;
mptspi_writeIOCPage4(hd, vtarget->channel, vtarget->id);
}else if ((sdev->type == TYPE_PROCESSOR) &&
!(vtarget->tflags & MPT_TARGET_FLAGS_SAF_TE_ISSUED )) {
if (sdev->inquiry_len > 49 ) {
if (sdev->inquiry[44] == 'S' &&
sdev->inquiry[45] == 'A' &&
sdev->inquiry[46] == 'F' &&
sdev->inquiry[47] == '-' &&
sdev->inquiry[48] == 'T' &&
sdev->inquiry[49] == 'E' ) {
vtarget->tflags |= MPT_TARGET_FLAGS_SAF_TE_ISSUED;
mptspi_writeIOCPage4(hd, vtarget->channel, vtarget->id);
}
}
}
mptspi_setTargetNegoParms(hd, vtarget, sdev);
}
/**
* mptspi_is_raid - Determines whether target is belonging to volume
* @hd: Pointer to a SCSI HOST structure
* @id: target device id
*
* Return:
* non-zero = true
* zero = false
*
*/
static int
mptspi_is_raid(struct _MPT_SCSI_HOST *hd, u32 id)
{
int i, rc = 0;
MPT_ADAPTER *ioc = hd->ioc;
if (!ioc->raid_data.pIocPg2)
goto out;
if (!ioc->raid_data.pIocPg2->NumActiveVolumes)
goto out;
for (i=0; i < ioc->raid_data.pIocPg2->NumActiveVolumes; i++) {
if (ioc->raid_data.pIocPg2->RaidVolume[i].VolumeID == id) {
rc = 1;
goto out;
}
}
out:
return rc;
}
static int mptspi_target_alloc(struct scsi_target *starget)
{
struct Scsi_Host *shost = dev_to_shost(&starget->dev);
struct _MPT_SCSI_HOST *hd = shost_priv(shost);
VirtTarget *vtarget;
MPT_ADAPTER *ioc;
if (hd == NULL)
return -ENODEV;
ioc = hd->ioc;
vtarget = kzalloc(sizeof(VirtTarget), GFP_KERNEL);
if (!vtarget)
return -ENOMEM;
vtarget->ioc_id = ioc->id;
vtarget->tflags = MPT_TARGET_FLAGS_Q_YES;
vtarget->id = (u8)starget->id;
vtarget->channel = (u8)starget->channel;
vtarget->starget = starget;
starget->hostdata = vtarget;
if (starget->channel == 1) {
if (mptscsih_is_phys_disk(ioc, 0, starget->id) == 0)
return 0;
vtarget->tflags |= MPT_TARGET_FLAGS_RAID_COMPONENT;
/* The real channel for this device is zero */
vtarget->channel = 0;
/* The actual physdisknum (for RAID passthrough) */
vtarget->id = mptscsih_raid_id_to_num(ioc, 0,
starget->id);
}
if (starget->channel == 0 &&
mptspi_is_raid(hd, starget->id)) {
vtarget->raidVolume = 1;
ddvprintk(ioc, printk(MYIOC_s_DEBUG_FMT
"RAID Volume @ channel=%d id=%d\n", ioc->name, starget->channel,
starget->id));
}
if (ioc->spi_data.nvram &&
ioc->spi_data.nvram[starget->id] != MPT_HOST_NVRAM_INVALID) {
u32 nvram = ioc->spi_data.nvram[starget->id];
spi_min_period(starget) = (nvram & MPT_NVRAM_SYNC_MASK) >> MPT_NVRAM_SYNC_SHIFT;
spi_max_width(starget) = nvram & MPT_NVRAM_WIDE_DISABLE ? 0 : 1;
} else {
spi_min_period(starget) = ioc->spi_data.minSyncFactor;
spi_max_width(starget) = ioc->spi_data.maxBusWidth;
}
spi_max_offset(starget) = ioc->spi_data.maxSyncOffset;
spi_offset(starget) = 0;
spi_period(starget) = 0xFF;
mptspi_write_width(starget, 0);
return 0;
}
static void
mptspi_target_destroy(struct scsi_target *starget)
{
kfree(starget->hostdata);
starget->hostdata = NULL;
}
/**
* mptspi_print_write_nego - negotiation parameters debug info that is being sent
* @hd: Pointer to a SCSI HOST structure
* @starget: SCSI target
* @ii: negotiation parameters
*
*/
static void
mptspi_print_write_nego(struct _MPT_SCSI_HOST *hd, struct scsi_target *starget, u32 ii)
{
ddvprintk(hd->ioc, printk(MYIOC_s_DEBUG_FMT "id=%d Requested = 0x%08x"
" ( %s factor = 0x%02x @ offset = 0x%02x %s%s%s%s%s%s%s%s)\n",
hd->ioc->name, starget->id, ii,
ii & MPI_SCSIDEVPAGE0_NP_WIDE ? "Wide ": "",
((ii >> 8) & 0xFF), ((ii >> 16) & 0xFF),
ii & MPI_SCSIDEVPAGE0_NP_IU ? "IU ": "",
ii & MPI_SCSIDEVPAGE0_NP_DT ? "DT ": "",
ii & MPI_SCSIDEVPAGE0_NP_QAS ? "QAS ": "",
ii & MPI_SCSIDEVPAGE0_NP_HOLD_MCS ? "HOLDMCS ": "",
ii & MPI_SCSIDEVPAGE0_NP_WR_FLOW ? "WRFLOW ": "",
ii & MPI_SCSIDEVPAGE0_NP_RD_STRM ? "RDSTRM ": "",
ii & MPI_SCSIDEVPAGE0_NP_RTI ? "RTI ": "",
ii & MPI_SCSIDEVPAGE0_NP_PCOMP_EN ? "PCOMP ": ""));
}
/**
* mptspi_print_read_nego - negotiation parameters debug info that is being read
* @hd: Pointer to a SCSI HOST structure
* @starget: SCSI target
* @ii: negotiation parameters
*
*/
static void
mptspi_print_read_nego(struct _MPT_SCSI_HOST *hd, struct scsi_target *starget, u32 ii)
{
ddvprintk(hd->ioc, printk(MYIOC_s_DEBUG_FMT "id=%d Read = 0x%08x"
" ( %s factor = 0x%02x @ offset = 0x%02x %s%s%s%s%s%s%s%s)\n",
hd->ioc->name, starget->id, ii,
ii & MPI_SCSIDEVPAGE0_NP_WIDE ? "Wide ": "",
((ii >> 8) & 0xFF), ((ii >> 16) & 0xFF),
ii & MPI_SCSIDEVPAGE0_NP_IU ? "IU ": "",
ii & MPI_SCSIDEVPAGE0_NP_DT ? "DT ": "",
ii & MPI_SCSIDEVPAGE0_NP_QAS ? "QAS ": "",
ii & MPI_SCSIDEVPAGE0_NP_HOLD_MCS ? "HOLDMCS ": "",
ii & MPI_SCSIDEVPAGE0_NP_WR_FLOW ? "WRFLOW ": "",
ii & MPI_SCSIDEVPAGE0_NP_RD_STRM ? "RDSTRM ": "",
ii & MPI_SCSIDEVPAGE0_NP_RTI ? "RTI ": "",
ii & MPI_SCSIDEVPAGE0_NP_PCOMP_EN ? "PCOMP ": ""));
}
static int mptspi_read_spi_device_pg0(struct scsi_target *starget,
struct _CONFIG_PAGE_SCSI_DEVICE_0 *pass_pg0)
{
struct Scsi_Host *shost = dev_to_shost(&starget->dev);
struct _MPT_SCSI_HOST *hd = shost_priv(shost);
struct _MPT_ADAPTER *ioc = hd->ioc;
struct _CONFIG_PAGE_SCSI_DEVICE_0 *spi_dev_pg0;
dma_addr_t spi_dev_pg0_dma;
int size;
struct _x_config_parms cfg;
struct _CONFIG_PAGE_HEADER hdr;
int err = -EBUSY;
/* No SPI parameters for RAID devices */
if (starget->channel == 0 &&
mptspi_is_raid(hd, starget->id))
return -1;
size = ioc->spi_data.sdp0length * 4;
/*
if (ioc->spi_data.sdp0length & 1)
size += size + 4;
size += 2048;
*/
spi_dev_pg0 = dma_alloc_coherent(&ioc->pcidev->dev, size, &spi_dev_pg0_dma, GFP_KERNEL);
if (spi_dev_pg0 == NULL) {
starget_printk(KERN_ERR, starget, MYIOC_s_FMT
"dma_alloc_coherent for parameters failed\n", ioc->name);
return -EINVAL;
}
memset(&hdr, 0, sizeof(hdr));
hdr.PageVersion = ioc->spi_data.sdp0version;
hdr.PageLength = ioc->spi_data.sdp0length;
hdr.PageNumber = 0;
hdr.PageType = MPI_CONFIG_PAGETYPE_SCSI_DEVICE;
memset(&cfg, 0, sizeof(cfg));
cfg.cfghdr.hdr = &hdr;
cfg.physAddr = spi_dev_pg0_dma;
cfg.action = MPI_CONFIG_ACTION_PAGE_READ_CURRENT;
cfg.dir = 0;
cfg.pageAddr = starget->id;
cfg.timeout = 60;
if (mpt_config(ioc, &cfg)) {
starget_printk(KERN_ERR, starget, MYIOC_s_FMT "mpt_config failed\n", ioc->name);
goto out_free;
}
err = 0;
memcpy(pass_pg0, spi_dev_pg0, size);
mptspi_print_read_nego(hd, starget, le32_to_cpu(spi_dev_pg0->NegotiatedParameters));
out_free:
dma_free_coherent(&ioc->pcidev->dev, size, spi_dev_pg0, spi_dev_pg0_dma);
return err;
}
static u32 mptspi_getRP(struct scsi_target *starget)
{
u32 nego = 0;
nego |= spi_iu(starget) ? MPI_SCSIDEVPAGE1_RP_IU : 0;
nego |= spi_dt(starget) ? MPI_SCSIDEVPAGE1_RP_DT : 0;
nego |= spi_qas(starget) ? MPI_SCSIDEVPAGE1_RP_QAS : 0;
nego |= spi_hold_mcs(starget) ? MPI_SCSIDEVPAGE1_RP_HOLD_MCS : 0;
nego |= spi_wr_flow(starget) ? MPI_SCSIDEVPAGE1_RP_WR_FLOW : 0;
nego |= spi_rd_strm(starget) ? MPI_SCSIDEVPAGE1_RP_RD_STRM : 0;
nego |= spi_rti(starget) ? MPI_SCSIDEVPAGE1_RP_RTI : 0;
nego |= spi_pcomp_en(starget) ? MPI_SCSIDEVPAGE1_RP_PCOMP_EN : 0;
nego |= (spi_period(starget) << MPI_SCSIDEVPAGE1_RP_SHIFT_MIN_SYNC_PERIOD) & MPI_SCSIDEVPAGE1_RP_MIN_SYNC_PERIOD_MASK;
nego |= (spi_offset(starget) << MPI_SCSIDEVPAGE1_RP_SHIFT_MAX_SYNC_OFFSET) & MPI_SCSIDEVPAGE1_RP_MAX_SYNC_OFFSET_MASK;
nego |= spi_width(starget) ? MPI_SCSIDEVPAGE1_RP_WIDE : 0;
return nego;
}
static void mptspi_read_parameters(struct scsi_target *starget)
{
int nego;
struct _CONFIG_PAGE_SCSI_DEVICE_0 spi_dev_pg0;
mptspi_read_spi_device_pg0(starget, &spi_dev_pg0);
nego = le32_to_cpu(spi_dev_pg0.NegotiatedParameters);
spi_iu(starget) = (nego & MPI_SCSIDEVPAGE0_NP_IU) ? 1 : 0;
spi_dt(starget) = (nego & MPI_SCSIDEVPAGE0_NP_DT) ? 1 : 0;
spi_qas(starget) = (nego & MPI_SCSIDEVPAGE0_NP_QAS) ? 1 : 0;
spi_wr_flow(starget) = (nego & MPI_SCSIDEVPAGE0_NP_WR_FLOW) ? 1 : 0;
spi_rd_strm(starget) = (nego & MPI_SCSIDEVPAGE0_NP_RD_STRM) ? 1 : 0;
spi_rti(starget) = (nego & MPI_SCSIDEVPAGE0_NP_RTI) ? 1 : 0;
spi_pcomp_en(starget) = (nego & MPI_SCSIDEVPAGE0_NP_PCOMP_EN) ? 1 : 0;
spi_hold_mcs(starget) = (nego & MPI_SCSIDEVPAGE0_NP_HOLD_MCS) ? 1 : 0;
spi_period(starget) = (nego & MPI_SCSIDEVPAGE0_NP_NEG_SYNC_PERIOD_MASK) >> MPI_SCSIDEVPAGE0_NP_SHIFT_SYNC_PERIOD;
spi_offset(starget) = (nego & MPI_SCSIDEVPAGE0_NP_NEG_SYNC_OFFSET_MASK) >> MPI_SCSIDEVPAGE0_NP_SHIFT_SYNC_OFFSET;
spi_width(starget) = (nego & MPI_SCSIDEVPAGE0_NP_WIDE) ? 1 : 0;
}
static int
mptscsih_quiesce_raid(MPT_SCSI_HOST *hd, int quiesce, u8 channel, u8 id)
{
MPT_ADAPTER *ioc = hd->ioc;
MpiRaidActionRequest_t *pReq;
MPT_FRAME_HDR *mf;
int ret;
unsigned long timeleft;
mutex_lock(&ioc->internal_cmds.mutex);
/* Get and Populate a free Frame
*/
if ((mf = mpt_get_msg_frame(ioc->InternalCtx, ioc)) == NULL) {
dfailprintk(hd->ioc, printk(MYIOC_s_WARN_FMT
"%s: no msg frames!\n", ioc->name, __func__));
ret = -EAGAIN;
goto out;
}
pReq = (MpiRaidActionRequest_t *)mf;
if (quiesce)
pReq->Action = MPI_RAID_ACTION_QUIESCE_PHYS_IO;
else
pReq->Action = MPI_RAID_ACTION_ENABLE_PHYS_IO;
pReq->Reserved1 = 0;
pReq->ChainOffset = 0;
pReq->Function = MPI_FUNCTION_RAID_ACTION;
pReq->VolumeID = id;
pReq->VolumeBus = channel;
pReq->PhysDiskNum = 0;
pReq->MsgFlags = 0;
pReq->Reserved2 = 0;
pReq->ActionDataWord = 0; /* Reserved for this action */
ioc->add_sge((char *)&pReq->ActionDataSGE,
MPT_SGE_FLAGS_SSIMPLE_READ | 0, (dma_addr_t) -1);
ddvprintk(ioc, printk(MYIOC_s_DEBUG_FMT "RAID Volume action=%x channel=%d id=%d\n",
ioc->name, pReq->Action, channel, id));
INITIALIZE_MGMT_STATUS(ioc->internal_cmds.status)
mpt_put_msg_frame(ioc->InternalCtx, ioc, mf);
timeleft = wait_for_completion_timeout(&ioc->internal_cmds.done, 10*HZ);
if (!(ioc->internal_cmds.status & MPT_MGMT_STATUS_COMMAND_GOOD)) {
ret = -ETIME;
dfailprintk(ioc, printk(MYIOC_s_DEBUG_FMT "%s: TIMED OUT!\n",
ioc->name, __func__));
if (ioc->internal_cmds.status & MPT_MGMT_STATUS_DID_IOCRESET)
goto out;
if (!timeleft) {
printk(MYIOC_s_WARN_FMT "Issuing Reset from %s!!\n",
ioc->name, __func__);
mpt_HardResetHandler(ioc, CAN_SLEEP);
mpt_free_msg_frame(ioc, mf);
}
goto out;
}
ret = ioc->internal_cmds.completion_code;
out:
CLEAR_MGMT_STATUS(ioc->internal_cmds.status)
mutex_unlock(&ioc->internal_cmds.mutex);
return ret;
}
static void mptspi_dv_device(struct _MPT_SCSI_HOST *hd,
struct scsi_device *sdev)
{
VirtTarget *vtarget = scsi_target(sdev)->hostdata;
MPT_ADAPTER *ioc = hd->ioc;
/* no DV on RAID devices */
if (sdev->channel == 0 &&
mptspi_is_raid(hd, sdev->id))
return;
/* If this is a piece of a RAID, then quiesce first */
if (sdev->channel == 1 &&
mptscsih_quiesce_raid(hd, 1, vtarget->channel, vtarget->id) < 0) {
starget_printk(KERN_ERR, scsi_target(sdev), MYIOC_s_FMT
"Integrated RAID quiesce failed\n", ioc->name);
return;
}
hd->spi_pending |= (1 << sdev->id);
spi_dv_device(sdev);
hd->spi_pending &= ~(1 << sdev->id);
if (sdev->channel == 1 &&
mptscsih_quiesce_raid(hd, 0, vtarget->channel, vtarget->id) < 0)
starget_printk(KERN_ERR, scsi_target(sdev), MYIOC_s_FMT
"Integrated RAID resume failed\n", ioc->name);
mptspi_read_parameters(sdev->sdev_target);
spi_display_xfer_agreement(sdev->sdev_target);
mptspi_read_parameters(sdev->sdev_target);
}
static int mptspi_slave_alloc(struct scsi_device *sdev)
{
MPT_SCSI_HOST *hd = shost_priv(sdev->host);
VirtTarget *vtarget;
VirtDevice *vdevice;
struct scsi_target *starget;
MPT_ADAPTER *ioc = hd->ioc;
if (sdev->channel == 1 &&
mptscsih_is_phys_disk(ioc, 0, sdev->id) == 0)
return -ENXIO;
vdevice = kzalloc(sizeof(VirtDevice), GFP_KERNEL);
if (!vdevice) {
printk(MYIOC_s_ERR_FMT "slave_alloc kmalloc(%zd) FAILED!\n",
ioc->name, sizeof(VirtDevice));
return -ENOMEM;
}
vdevice->lun = sdev->lun;
sdev->hostdata = vdevice;
starget = scsi_target(sdev);
vtarget = starget->hostdata;
vdevice->vtarget = vtarget;
vtarget->num_luns++;
if (sdev->channel == 1)
sdev->no_uld_attach = 1;
return 0;
}
static int mptspi_slave_configure(struct scsi_device *sdev)
{
struct _MPT_SCSI_HOST *hd = shost_priv(sdev->host);
VirtTarget *vtarget = scsi_target(sdev)->hostdata;
int ret;
mptspi_initTarget(hd, vtarget, sdev);
ret = mptscsih_slave_configure(sdev);
if (ret)
return ret;
ddvprintk(hd->ioc, printk(MYIOC_s_DEBUG_FMT "id=%d min_period=0x%02x"
" max_offset=0x%02x max_width=%d\n", hd->ioc->name,
sdev->id, spi_min_period(scsi_target(sdev)),
spi_max_offset(scsi_target(sdev)),
spi_max_width(scsi_target(sdev))));
if ((sdev->channel == 1 ||
!(mptspi_is_raid(hd, sdev->id))) &&
!spi_initial_dv(sdev->sdev_target))
mptspi_dv_device(hd, sdev);
return 0;
}
static int
mptspi_qcmd(struct Scsi_Host *shost, struct scsi_cmnd *SCpnt)
{
struct _MPT_SCSI_HOST *hd = shost_priv(shost);
VirtDevice *vdevice = SCpnt->device->hostdata;
MPT_ADAPTER *ioc = hd->ioc;
if (!vdevice || !vdevice->vtarget) {
SCpnt->result = DID_NO_CONNECT << 16;
SCpnt->scsi_done(SCpnt);
return 0;
}
if (SCpnt->device->channel == 1 &&
mptscsih_is_phys_disk(ioc, 0, SCpnt->device->id) == 0) {
SCpnt->result = DID_NO_CONNECT << 16;
SCpnt->scsi_done(SCpnt);
return 0;
}
if (spi_dv_pending(scsi_target(SCpnt->device)))
ddvprintk(ioc, scsi_print_command(SCpnt));
return mptscsih_qcmd(SCpnt);
}
static void mptspi_slave_destroy(struct scsi_device *sdev)
{
struct scsi_target *starget = scsi_target(sdev);
VirtTarget *vtarget = starget->hostdata;
VirtDevice *vdevice = sdev->hostdata;
/* Will this be the last lun on a non-raid device? */
if (vtarget->num_luns == 1 && vdevice->configured_lun) {
struct _CONFIG_PAGE_SCSI_DEVICE_1 pg1;
/* Async Narrow */
pg1.RequestedParameters = 0;
pg1.Reserved = 0;
pg1.Configuration = 0;
mptspi_write_spi_device_pg1(starget, &pg1);
}
mptscsih_slave_destroy(sdev);
}
static struct scsi_host_template mptspi_driver_template = {
.module = THIS_MODULE,
.proc_name = "mptspi",
.show_info = mptscsih_show_info,
.name = "MPT SPI Host",
.info = mptscsih_info,
.queuecommand = mptspi_qcmd,
.target_alloc = mptspi_target_alloc,
.slave_alloc = mptspi_slave_alloc,
.slave_configure = mptspi_slave_configure,
.target_destroy = mptspi_target_destroy,
.slave_destroy = mptspi_slave_destroy,
.change_queue_depth = mptscsih_change_queue_depth,
.eh_abort_handler = mptscsih_abort,
.eh_device_reset_handler = mptscsih_dev_reset,
.eh_bus_reset_handler = mptscsih_bus_reset,
.eh_host_reset_handler = mptscsih_host_reset,
.bios_param = mptscsih_bios_param,
.can_queue = MPT_SCSI_CAN_QUEUE,
.this_id = -1,
.sg_tablesize = MPT_SCSI_SG_DEPTH,
.max_sectors = 8192,
.cmd_per_lun = 7,
.shost_attrs = mptscsih_host_attrs,
};
static int mptspi_write_spi_device_pg1(struct scsi_target *starget,
struct _CONFIG_PAGE_SCSI_DEVICE_1 *pass_pg1)
{
struct Scsi_Host *shost = dev_to_shost(&starget->dev);
struct _MPT_SCSI_HOST *hd = shost_priv(shost);
struct _MPT_ADAPTER *ioc = hd->ioc;
struct _CONFIG_PAGE_SCSI_DEVICE_1 *pg1;
dma_addr_t pg1_dma;
int size;
struct _x_config_parms cfg;
struct _CONFIG_PAGE_HEADER hdr;
int err = -EBUSY;
u32 nego_parms;
u32 period;
struct scsi_device *sdev;
int i;
/* don't allow updating nego parameters on RAID devices */
if (starget->channel == 0 &&
mptspi_is_raid(hd, starget->id))
return -1;
size = ioc->spi_data.sdp1length * 4;
pg1 = dma_alloc_coherent(&ioc->pcidev->dev, size, &pg1_dma, GFP_KERNEL);
if (pg1 == NULL) {
starget_printk(KERN_ERR, starget, MYIOC_s_FMT
"dma_alloc_coherent for parameters failed\n", ioc->name);
return -EINVAL;
}
memset(&hdr, 0, sizeof(hdr));
hdr.PageVersion = ioc->spi_data.sdp1version;
hdr.PageLength = ioc->spi_data.sdp1length;
hdr.PageNumber = 1;
hdr.PageType = MPI_CONFIG_PAGETYPE_SCSI_DEVICE;
memset(&cfg, 0, sizeof(cfg));
cfg.cfghdr.hdr = &hdr;
cfg.physAddr = pg1_dma;
cfg.action = MPI_CONFIG_ACTION_PAGE_WRITE_CURRENT;
cfg.dir = 1;
cfg.pageAddr = starget->id;
memcpy(pg1, pass_pg1, size);
pg1->Header.PageVersion = hdr.PageVersion;
pg1->Header.PageLength = hdr.PageLength;
pg1->Header.PageNumber = hdr.PageNumber;
pg1->Header.PageType = hdr.PageType;
nego_parms = le32_to_cpu(pg1->RequestedParameters);
period = (nego_parms & MPI_SCSIDEVPAGE1_RP_MIN_SYNC_PERIOD_MASK) >>
MPI_SCSIDEVPAGE1_RP_SHIFT_MIN_SYNC_PERIOD;
if (period == 8) {
/* Turn on inline data padding for TAPE when running U320 */
for (i = 0 ; i < 16; i++) {
sdev = scsi_device_lookup_by_target(starget, i);
if (sdev && sdev->type == TYPE_TAPE) {
sdev_printk(KERN_DEBUG, sdev, MYIOC_s_FMT
"IDP:ON\n", ioc->name);
nego_parms |= MPI_SCSIDEVPAGE1_RP_IDP;
pg1->RequestedParameters =
cpu_to_le32(nego_parms);
break;
}
}
}
mptspi_print_write_nego(hd, starget, le32_to_cpu(pg1->RequestedParameters));
if (mpt_config(ioc, &cfg)) {
starget_printk(KERN_ERR, starget, MYIOC_s_FMT
"mpt_config failed\n", ioc->name);
goto out_free;
}
err = 0;
out_free:
dma_free_coherent(&ioc->pcidev->dev, size, pg1, pg1_dma);
return err;
}
static void mptspi_write_offset(struct scsi_target *starget, int offset)
{
struct _CONFIG_PAGE_SCSI_DEVICE_1 pg1;
u32 nego;
if (offset < 0)
offset = 0;
if (offset > 255)
offset = 255;
if (spi_offset(starget) == -1)
mptspi_read_parameters(starget);
spi_offset(starget) = offset;
nego = mptspi_getRP(starget);
pg1.RequestedParameters = cpu_to_le32(nego);
pg1.Reserved = 0;
pg1.Configuration = 0;
mptspi_write_spi_device_pg1(starget, &pg1);
}
static void mptspi_write_period(struct scsi_target *starget, int period)
{
struct _CONFIG_PAGE_SCSI_DEVICE_1 pg1;
u32 nego;
if (period < 8)
period = 8;
if (period > 255)
period = 255;
if (spi_period(starget) == -1)
mptspi_read_parameters(starget);
if (period == 8) {
spi_iu(starget) = 1;
spi_dt(starget) = 1;
} else if (period == 9) {
spi_dt(starget) = 1;
}
spi_period(starget) = period;
nego = mptspi_getRP(starget);
pg1.RequestedParameters = cpu_to_le32(nego);
pg1.Reserved = 0;
pg1.Configuration = 0;
mptspi_write_spi_device_pg1(starget, &pg1);
}
static void mptspi_write_dt(struct scsi_target *starget, int dt)
{
struct _CONFIG_PAGE_SCSI_DEVICE_1 pg1;
u32 nego;
if (spi_period(starget) == -1)
mptspi_read_parameters(starget);
if (!dt && spi_period(starget) < 10)
spi_period(starget) = 10;