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29#include <linux/mm.h>
30#include <linux/fs.h>
31#include <linux/blkdev.h>
32#include <linux/uaccess.h>
33#include <asm/io.h>
34#include <linux/completion.h>
35#include <linux/delay.h>
36#include <linux/proc_fs.h>
37#include <linux/seq_file.h>
38#include <linux/reboot.h>
39#include <linux/module.h>
40#include <linux/list.h>
41#include <linux/interrupt.h>
42#include <linux/pci.h>
43#include <linux/init.h>
44#include <linux/dma-mapping.h>
45#include <linux/mutex.h>
46#include <linux/slab.h>
47#include <scsi/scsicam.h>
48
49#include "scsi.h"
50#include <scsi/scsi_host.h>
51
52#include "megaraid.h"
53
54#define MEGARAID_MODULE_VERSION "2.00.4"
55
56MODULE_AUTHOR ("sju@lsil.com");
57MODULE_DESCRIPTION ("LSI Logic MegaRAID legacy driver");
58MODULE_LICENSE ("GPL");
59MODULE_VERSION(MEGARAID_MODULE_VERSION);
60
61static DEFINE_MUTEX(megadev_mutex);
62static unsigned int max_cmd_per_lun = DEF_CMD_PER_LUN;
63module_param(max_cmd_per_lun, uint, 0);
64MODULE_PARM_DESC(max_cmd_per_lun, "Maximum number of commands which can be issued to a single LUN (default=DEF_CMD_PER_LUN=63)");
65
66static unsigned short int max_sectors_per_io = MAX_SECTORS_PER_IO;
67module_param(max_sectors_per_io, ushort, 0);
68MODULE_PARM_DESC(max_sectors_per_io, "Maximum number of sectors per I/O request (default=MAX_SECTORS_PER_IO=128)");
69
70
71static unsigned short int max_mbox_busy_wait = MBOX_BUSY_WAIT;
72module_param(max_mbox_busy_wait, ushort, 0);
73MODULE_PARM_DESC(max_mbox_busy_wait, "Maximum wait for mailbox in microseconds if busy (default=MBOX_BUSY_WAIT=10)");
74
75#define RDINDOOR(adapter) readl((adapter)->mmio_base + 0x20)
76#define RDOUTDOOR(adapter) readl((adapter)->mmio_base + 0x2C)
77#define WRINDOOR(adapter,value) writel(value, (adapter)->mmio_base + 0x20)
78#define WROUTDOOR(adapter,value) writel(value, (adapter)->mmio_base + 0x2C)
79
80
81
82
83
84static int hba_count;
85static adapter_t *hba_soft_state[MAX_CONTROLLERS];
86static struct proc_dir_entry *mega_proc_dir_entry;
87
88
89static struct mega_hbas mega_hbas[MAX_CONTROLLERS];
90
91static long
92megadev_unlocked_ioctl(struct file *filep, unsigned int cmd, unsigned long arg);
93
94
95
96
97static const struct file_operations megadev_fops = {
98 .owner = THIS_MODULE,
99 .unlocked_ioctl = megadev_unlocked_ioctl,
100 .open = megadev_open,
101 .llseek = noop_llseek,
102};
103
104
105
106
107
108
109static struct mcontroller mcontroller[MAX_CONTROLLERS];
110
111
112static u32 driver_ver = 0x02000000;
113
114
115static int major;
116
117#define IS_RAID_CH(hba, ch) (((hba)->mega_ch_class >> (ch)) & 0x01)
118
119
120
121
122
123static int trace_level;
124
125
126
127
128
129
130
131static int
132mega_setup_mailbox(adapter_t *adapter)
133{
134 unsigned long align;
135
136 adapter->una_mbox64 = dma_alloc_coherent(&adapter->dev->dev,
137 sizeof(mbox64_t),
138 &adapter->una_mbox64_dma,
139 GFP_KERNEL);
140
141 if( !adapter->una_mbox64 ) return -1;
142
143 adapter->mbox = &adapter->una_mbox64->mbox;
144
145 adapter->mbox = (mbox_t *)((((unsigned long) adapter->mbox) + 15) &
146 (~0UL ^ 0xFUL));
147
148 adapter->mbox64 = (mbox64_t *)(((unsigned long)adapter->mbox) - 8);
149
150 align = ((void *)adapter->mbox) - ((void *)&adapter->una_mbox64->mbox);
151
152 adapter->mbox_dma = adapter->una_mbox64_dma + 8 + align;
153
154
155
156
157 if( adapter->flag & BOARD_IOMAP ) {
158
159 outb(adapter->mbox_dma & 0xFF,
160 adapter->host->io_port + MBOX_PORT0);
161
162 outb((adapter->mbox_dma >> 8) & 0xFF,
163 adapter->host->io_port + MBOX_PORT1);
164
165 outb((adapter->mbox_dma >> 16) & 0xFF,
166 adapter->host->io_port + MBOX_PORT2);
167
168 outb((adapter->mbox_dma >> 24) & 0xFF,
169 adapter->host->io_port + MBOX_PORT3);
170
171 outb(ENABLE_MBOX_BYTE,
172 adapter->host->io_port + ENABLE_MBOX_REGION);
173
174 irq_ack(adapter);
175
176 irq_enable(adapter);
177 }
178
179 return 0;
180}
181
182
183
184
185
186
187
188
189
190static int
191mega_query_adapter(adapter_t *adapter)
192{
193 dma_addr_t prod_info_dma_handle;
194 mega_inquiry3 *inquiry3;
195 u8 raw_mbox[sizeof(struct mbox_out)];
196 mbox_t *mbox;
197 int retval;
198
199
200
201 mbox = (mbox_t *)raw_mbox;
202
203 memset((void *)adapter->mega_buffer, 0, MEGA_BUFFER_SIZE);
204 memset(&mbox->m_out, 0, sizeof(raw_mbox));
205
206
207
208
209
210
211 mbox->m_out.xferaddr = (u32)adapter->buf_dma_handle;
212
213 inquiry3 = (mega_inquiry3 *)adapter->mega_buffer;
214
215 raw_mbox[0] = FC_NEW_CONFIG;
216 raw_mbox[2] = NC_SUBOP_ENQUIRY3;
217 raw_mbox[3] = ENQ3_GET_SOLICITED_FULL;
218
219
220 if ((retval = issue_scb_block(adapter, raw_mbox))) {
221
222
223 mraid_ext_inquiry *ext_inq;
224 mraid_inquiry *inq;
225 dma_addr_t dma_handle;
226
227 ext_inq = dma_alloc_coherent(&adapter->dev->dev,
228 sizeof(mraid_ext_inquiry),
229 &dma_handle, GFP_KERNEL);
230
231 if( ext_inq == NULL ) return -1;
232
233 inq = &ext_inq->raid_inq;
234
235 mbox->m_out.xferaddr = (u32)dma_handle;
236
237
238 mbox->m_out.cmd = MEGA_MBOXCMD_ADPEXTINQ;
239
240 issue_scb_block(adapter, raw_mbox);
241
242
243
244
245
246 mega_8_to_40ld(inq, inquiry3,
247 (mega_product_info *)&adapter->product_info);
248
249 dma_free_coherent(&adapter->dev->dev,
250 sizeof(mraid_ext_inquiry), ext_inq,
251 dma_handle);
252
253 } else {
254 adapter->flag |= BOARD_40LD;
255
256
257
258
259
260 prod_info_dma_handle = dma_map_single(&adapter->dev->dev,
261 (void *)&adapter->product_info,
262 sizeof(mega_product_info),
263 DMA_FROM_DEVICE);
264
265 mbox->m_out.xferaddr = prod_info_dma_handle;
266
267 raw_mbox[0] = FC_NEW_CONFIG;
268 raw_mbox[2] = NC_SUBOP_PRODUCT_INFO;
269
270 if ((retval = issue_scb_block(adapter, raw_mbox)))
271 dev_warn(&adapter->dev->dev,
272 "Product_info cmd failed with error: %d\n",
273 retval);
274
275 dma_unmap_single(&adapter->dev->dev, prod_info_dma_handle,
276 sizeof(mega_product_info), DMA_FROM_DEVICE);
277 }
278
279
280
281
282
283 adapter->host->max_channel =
284 adapter->product_info.nchannels + NVIRT_CHAN -1;
285
286 adapter->host->max_id = 16;
287
288 adapter->host->max_lun = 7;
289
290 adapter->host->cmd_per_lun = max_cmd_per_lun;
291
292 adapter->numldrv = inquiry3->num_ldrv;
293
294 adapter->max_cmds = adapter->product_info.max_commands;
295
296 if(adapter->max_cmds > MAX_COMMANDS)
297 adapter->max_cmds = MAX_COMMANDS;
298
299 adapter->host->can_queue = adapter->max_cmds - 1;
300
301
302
303
304
305 mega_get_max_sgl(adapter);
306
307 adapter->host->sg_tablesize = adapter->sglen;
308
309
310
311
312
313 if (adapter->product_info.subsysvid == PCI_VENDOR_ID_HP) {
314 snprintf(adapter->fw_version, sizeof(adapter->fw_version),
315 "%c%d%d.%d%d",
316 adapter->product_info.fw_version[2],
317 0,
318 adapter->product_info.fw_version[1] & 0x0f,
319 0,
320 adapter->product_info.fw_version[0] & 0x0f);
321 snprintf(adapter->bios_version, sizeof(adapter->fw_version),
322 "%c%d%d.%d%d",
323 adapter->product_info.bios_version[2],
324 0,
325 adapter->product_info.bios_version[1] & 0x0f,
326 0,
327 adapter->product_info.bios_version[0] & 0x0f);
328 } else {
329 memcpy(adapter->fw_version,
330 (char *)adapter->product_info.fw_version, 4);
331 adapter->fw_version[4] = 0;
332
333 memcpy(adapter->bios_version,
334 (char *)adapter->product_info.bios_version, 4);
335
336 adapter->bios_version[4] = 0;
337 }
338
339 dev_notice(&adapter->dev->dev, "[%s:%s] detected %d logical drives\n",
340 adapter->fw_version, adapter->bios_version, adapter->numldrv);
341
342
343
344
345 adapter->support_ext_cdb = mega_support_ext_cdb(adapter);
346 if (adapter->support_ext_cdb)
347 dev_notice(&adapter->dev->dev, "supports extended CDBs\n");
348
349
350 return 0;
351}
352
353
354
355
356
357
358
359static inline void
360mega_runpendq(adapter_t *adapter)
361{
362 if(!list_empty(&adapter->pending_list))
363 __mega_runpendq(adapter);
364}
365
366
367
368
369
370
371
372
373static int
374megaraid_queue_lck(struct scsi_cmnd *scmd, void (*done)(struct scsi_cmnd *))
375{
376 adapter_t *adapter;
377 scb_t *scb;
378 int busy=0;
379 unsigned long flags;
380
381 adapter = (adapter_t *)scmd->device->host->hostdata;
382
383 scmd->scsi_done = done;
384
385
386
387
388
389
390
391
392
393
394
395 spin_lock_irqsave(&adapter->lock, flags);
396 scb = mega_build_cmd(adapter, scmd, &busy);
397 if (!scb)
398 goto out;
399
400 scb->state |= SCB_PENDQ;
401 list_add_tail(&scb->list, &adapter->pending_list);
402
403
404
405
406
407
408 if (atomic_read(&adapter->quiescent) == 0)
409 mega_runpendq(adapter);
410
411 busy = 0;
412 out:
413 spin_unlock_irqrestore(&adapter->lock, flags);
414 return busy;
415}
416
417static DEF_SCSI_QCMD(megaraid_queue)
418
419
420
421
422
423
424
425
426
427static inline scb_t *
428mega_allocate_scb(adapter_t *adapter, struct scsi_cmnd *cmd)
429{
430 struct list_head *head = &adapter->free_list;
431 scb_t *scb;
432
433
434 if( !list_empty(head) ) {
435
436 scb = list_entry(head->next, scb_t, list);
437
438 list_del_init(head->next);
439
440 scb->state = SCB_ACTIVE;
441 scb->cmd = cmd;
442 scb->dma_type = MEGA_DMA_TYPE_NONE;
443
444 return scb;
445 }
446
447 return NULL;
448}
449
450
451
452
453
454
455
456
457
458
459static inline int
460mega_get_ldrv_num(adapter_t *adapter, struct scsi_cmnd *cmd, int channel)
461{
462 int tgt;
463 int ldrv_num;
464
465 tgt = cmd->device->id;
466
467 if ( tgt > adapter->this_id )
468 tgt--;
469
470 ldrv_num = (channel * 15) + tgt;
471
472
473
474
475
476 if( adapter->boot_ldrv_enabled ) {
477 if( ldrv_num == 0 ) {
478 ldrv_num = adapter->boot_ldrv;
479 }
480 else {
481 if( ldrv_num <= adapter->boot_ldrv ) {
482 ldrv_num--;
483 }
484 }
485 }
486
487
488
489
490
491
492
493
494
495
496
497 if (adapter->support_random_del && adapter->read_ldidmap )
498 switch (cmd->cmnd[0]) {
499 case READ_6:
500 case WRITE_6:
501 case READ_10:
502 case WRITE_10:
503 ldrv_num += 0x80;
504 }
505
506 return ldrv_num;
507}
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522static scb_t *
523mega_build_cmd(adapter_t *adapter, struct scsi_cmnd *cmd, int *busy)
524{
525 mega_passthru *pthru;
526 scb_t *scb;
527 mbox_t *mbox;
528 u32 seg;
529 char islogical;
530 int max_ldrv_num;
531 int channel = 0;
532 int target = 0;
533 int ldrv_num = 0;
534
535
536
537
538 islogical = adapter->logdrv_chan[cmd->device->channel];
539
540
541
542
543
544
545
546
547 if( adapter->boot_pdrv_enabled ) {
548 if( islogical ) {
549
550 channel = cmd->device->channel -
551 adapter->product_info.nchannels;
552 }
553 else {
554
555 channel = cmd->device->channel;
556 target = cmd->device->id;
557
558
559
560
561
562
563 if( target == 0 ) {
564 target = adapter->boot_pdrv_tgt;
565 }
566 else if( target == adapter->boot_pdrv_tgt ) {
567 target = 0;
568 }
569 }
570 }
571 else {
572 if( islogical ) {
573
574 channel = cmd->device->channel;
575 }
576 else {
577
578 channel = cmd->device->channel - NVIRT_CHAN;
579 target = cmd->device->id;
580 }
581 }
582
583
584 if(islogical) {
585
586
587 if (cmd->device->lun) {
588 cmd->result = (DID_BAD_TARGET << 16);
589 cmd->scsi_done(cmd);
590 return NULL;
591 }
592
593 ldrv_num = mega_get_ldrv_num(adapter, cmd, channel);
594
595
596 max_ldrv_num = (adapter->flag & BOARD_40LD) ?
597 MAX_LOGICAL_DRIVES_40LD : MAX_LOGICAL_DRIVES_8LD;
598
599
600
601
602
603 if(adapter->read_ldidmap)
604 max_ldrv_num += 0x80;
605
606 if(ldrv_num > max_ldrv_num ) {
607 cmd->result = (DID_BAD_TARGET << 16);
608 cmd->scsi_done(cmd);
609 return NULL;
610 }
611
612 }
613 else {
614 if( cmd->device->lun > 7) {
615
616
617
618
619 cmd->result = (DID_BAD_TARGET << 16);
620 cmd->scsi_done(cmd);
621 return NULL;
622 }
623 }
624
625
626
627
628
629
630 if(islogical) {
631 switch (cmd->cmnd[0]) {
632 case TEST_UNIT_READY:
633#if MEGA_HAVE_CLUSTERING
634
635
636
637
638 if( !adapter->has_cluster ) {
639 cmd->result = (DID_OK << 16);
640 cmd->scsi_done(cmd);
641 return NULL;
642 }
643
644 if(!(scb = mega_allocate_scb(adapter, cmd))) {
645 *busy = 1;
646 return NULL;
647 }
648
649 scb->raw_mbox[0] = MEGA_CLUSTER_CMD;
650 scb->raw_mbox[2] = MEGA_RESERVATION_STATUS;
651 scb->raw_mbox[3] = ldrv_num;
652
653 scb->dma_direction = DMA_NONE;
654
655 return scb;
656#else
657 cmd->result = (DID_OK << 16);
658 cmd->scsi_done(cmd);
659 return NULL;
660#endif
661
662 case MODE_SENSE: {
663 char *buf;
664 struct scatterlist *sg;
665
666 sg = scsi_sglist(cmd);
667 buf = kmap_atomic(sg_page(sg)) + sg->offset;
668
669 memset(buf, 0, cmd->cmnd[4]);
670 kunmap_atomic(buf - sg->offset);
671
672 cmd->result = (DID_OK << 16);
673 cmd->scsi_done(cmd);
674 return NULL;
675 }
676
677 case READ_CAPACITY:
678 case INQUIRY:
679
680 if(!(adapter->flag & (1L << cmd->device->channel))) {
681
682 dev_notice(&adapter->dev->dev,
683 "scsi%d: scanning scsi channel %d "
684 "for logical drives\n",
685 adapter->host->host_no,
686 cmd->device->channel);
687
688 adapter->flag |= (1L << cmd->device->channel);
689 }
690
691
692 if(!(scb = mega_allocate_scb(adapter, cmd))) {
693 *busy = 1;
694 return NULL;
695 }
696 pthru = scb->pthru;
697
698 mbox = (mbox_t *)scb->raw_mbox;
699 memset(mbox, 0, sizeof(scb->raw_mbox));
700 memset(pthru, 0, sizeof(mega_passthru));
701
702 pthru->timeout = 0;
703 pthru->ars = 1;
704 pthru->reqsenselen = 14;
705 pthru->islogical = 1;
706 pthru->logdrv = ldrv_num;
707 pthru->cdblen = cmd->cmd_len;
708 memcpy(pthru->cdb, cmd->cmnd, cmd->cmd_len);
709
710 if( adapter->has_64bit_addr ) {
711 mbox->m_out.cmd = MEGA_MBOXCMD_PASSTHRU64;
712 }
713 else {
714 mbox->m_out.cmd = MEGA_MBOXCMD_PASSTHRU;
715 }
716
717 scb->dma_direction = DMA_FROM_DEVICE;
718
719 pthru->numsgelements = mega_build_sglist(adapter, scb,
720 &pthru->dataxferaddr, &pthru->dataxferlen);
721
722 mbox->m_out.xferaddr = scb->pthru_dma_addr;
723
724 return scb;
725
726 case READ_6:
727 case WRITE_6:
728 case READ_10:
729 case WRITE_10:
730 case READ_12:
731 case WRITE_12:
732
733
734 if(!(scb = mega_allocate_scb(adapter, cmd))) {
735 *busy = 1;
736 return NULL;
737 }
738 mbox = (mbox_t *)scb->raw_mbox;
739
740 memset(mbox, 0, sizeof(scb->raw_mbox));
741 mbox->m_out.logdrv = ldrv_num;
742
743
744
745
746
747 if( adapter->has_64bit_addr ) {
748 mbox->m_out.cmd = (*cmd->cmnd & 0x02) ?
749 MEGA_MBOXCMD_LWRITE64:
750 MEGA_MBOXCMD_LREAD64 ;
751 }
752 else {
753 mbox->m_out.cmd = (*cmd->cmnd & 0x02) ?
754 MEGA_MBOXCMD_LWRITE:
755 MEGA_MBOXCMD_LREAD ;
756 }
757
758
759
760
761 if( cmd->cmd_len == 6 ) {
762 mbox->m_out.numsectors = (u32) cmd->cmnd[4];
763 mbox->m_out.lba =
764 ((u32)cmd->cmnd[1] << 16) |
765 ((u32)cmd->cmnd[2] << 8) |
766 (u32)cmd->cmnd[3];
767
768 mbox->m_out.lba &= 0x1FFFFF;
769
770#if MEGA_HAVE_STATS
771
772
773
774
775
776 if (*cmd->cmnd == READ_6) {
777 adapter->nreads[ldrv_num%0x80]++;
778 adapter->nreadblocks[ldrv_num%0x80] +=
779 mbox->m_out.numsectors;
780 } else {
781 adapter->nwrites[ldrv_num%0x80]++;
782 adapter->nwriteblocks[ldrv_num%0x80] +=
783 mbox->m_out.numsectors;
784 }
785#endif
786 }
787
788
789
790
791 if( cmd->cmd_len == 10 ) {
792 mbox->m_out.numsectors =
793 (u32)cmd->cmnd[8] |
794 ((u32)cmd->cmnd[7] << 8);
795 mbox->m_out.lba =
796 ((u32)cmd->cmnd[2] << 24) |
797 ((u32)cmd->cmnd[3] << 16) |
798 ((u32)cmd->cmnd[4] << 8) |
799 (u32)cmd->cmnd[5];
800
801#if MEGA_HAVE_STATS
802 if (*cmd->cmnd == READ_10) {
803 adapter->nreads[ldrv_num%0x80]++;
804 adapter->nreadblocks[ldrv_num%0x80] +=
805 mbox->m_out.numsectors;
806 } else {
807 adapter->nwrites[ldrv_num%0x80]++;
808 adapter->nwriteblocks[ldrv_num%0x80] +=
809 mbox->m_out.numsectors;
810 }
811#endif
812 }
813
814
815
816
817 if( cmd->cmd_len == 12 ) {
818 mbox->m_out.lba =
819 ((u32)cmd->cmnd[2] << 24) |
820 ((u32)cmd->cmnd[3] << 16) |
821 ((u32)cmd->cmnd[4] << 8) |
822 (u32)cmd->cmnd[5];
823
824 mbox->m_out.numsectors =
825 ((u32)cmd->cmnd[6] << 24) |
826 ((u32)cmd->cmnd[7] << 16) |
827 ((u32)cmd->cmnd[8] << 8) |
828 (u32)cmd->cmnd[9];
829
830#if MEGA_HAVE_STATS
831 if (*cmd->cmnd == READ_12) {
832 adapter->nreads[ldrv_num%0x80]++;
833 adapter->nreadblocks[ldrv_num%0x80] +=
834 mbox->m_out.numsectors;
835 } else {
836 adapter->nwrites[ldrv_num%0x80]++;
837 adapter->nwriteblocks[ldrv_num%0x80] +=
838 mbox->m_out.numsectors;
839 }
840#endif
841 }
842
843
844
845
846 if( (*cmd->cmnd & 0x0F) == 0x08 ) {
847 scb->dma_direction = DMA_FROM_DEVICE;
848 }
849 else {
850 scb->dma_direction = DMA_TO_DEVICE;
851 }
852
853
854 mbox->m_out.numsgelements = mega_build_sglist(adapter, scb,
855 (u32 *)&mbox->m_out.xferaddr, &seg);
856
857 return scb;
858
859#if MEGA_HAVE_CLUSTERING
860 case RESERVE:
861 case RELEASE:
862
863
864
865
866 if( ! adapter->has_cluster ) {
867
868 cmd->result = (DID_BAD_TARGET << 16);
869 cmd->scsi_done(cmd);
870 return NULL;
871 }
872
873
874 if(!(scb = mega_allocate_scb(adapter, cmd))) {
875 *busy = 1;
876 return NULL;
877 }
878
879 scb->raw_mbox[0] = MEGA_CLUSTER_CMD;
880 scb->raw_mbox[2] = ( *cmd->cmnd == RESERVE ) ?
881 MEGA_RESERVE_LD : MEGA_RELEASE_LD;
882
883 scb->raw_mbox[3] = ldrv_num;
884
885 scb->dma_direction = DMA_NONE;
886
887 return scb;
888#endif
889
890 default:
891 cmd->result = (DID_BAD_TARGET << 16);
892 cmd->scsi_done(cmd);
893 return NULL;
894 }
895 }
896
897
898
899
900 else {
901
902 if(!(scb = mega_allocate_scb(adapter, cmd))) {
903 *busy = 1;
904 return NULL;
905 }
906
907 mbox = (mbox_t *)scb->raw_mbox;
908 memset(mbox, 0, sizeof(scb->raw_mbox));
909
910 if( adapter->support_ext_cdb ) {
911
912 mega_prepare_extpassthru(adapter, scb, cmd,
913 channel, target);
914
915 mbox->m_out.cmd = MEGA_MBOXCMD_EXTPTHRU;
916
917 mbox->m_out.xferaddr = scb->epthru_dma_addr;
918
919 }
920 else {
921
922 pthru = mega_prepare_passthru(adapter, scb, cmd,
923 channel, target);
924
925
926 if( adapter->has_64bit_addr ) {
927 mbox->m_out.cmd = MEGA_MBOXCMD_PASSTHRU64;
928 }
929 else {
930 mbox->m_out.cmd = MEGA_MBOXCMD_PASSTHRU;
931 }
932
933 mbox->m_out.xferaddr = scb->pthru_dma_addr;
934
935 }
936 return scb;
937 }
938 return NULL;
939}
940
941
942
943
944
945
946
947
948
949
950
951
952static mega_passthru *
953mega_prepare_passthru(adapter_t *adapter, scb_t *scb, struct scsi_cmnd *cmd,
954 int channel, int target)
955{
956 mega_passthru *pthru;
957
958 pthru = scb->pthru;
959 memset(pthru, 0, sizeof (mega_passthru));
960
961
962 pthru->timeout = 2;
963
964 pthru->ars = 1;
965 pthru->reqsenselen = 14;
966 pthru->islogical = 0;
967
968 pthru->channel = (adapter->flag & BOARD_40LD) ? 0 : channel;
969
970 pthru->target = (adapter->flag & BOARD_40LD) ?
971 (channel << 4) | target : target;
972
973 pthru->cdblen = cmd->cmd_len;
974 pthru->logdrv = cmd->device->lun;
975
976 memcpy(pthru->cdb, cmd->cmnd, cmd->cmd_len);
977
978
979 scb->dma_direction = DMA_BIDIRECTIONAL;
980
981
982 switch (cmd->cmnd[0]) {
983 case INQUIRY:
984 case READ_CAPACITY:
985 if(!(adapter->flag & (1L << cmd->device->channel))) {
986
987 dev_notice(&adapter->dev->dev,
988 "scsi%d: scanning scsi channel %d [P%d] "
989 "for physical devices\n",
990 adapter->host->host_no,
991 cmd->device->channel, channel);
992
993 adapter->flag |= (1L << cmd->device->channel);
994 }
995 fallthrough;
996 default:
997 pthru->numsgelements = mega_build_sglist(adapter, scb,
998 &pthru->dataxferaddr, &pthru->dataxferlen);
999 break;
1000 }
1001 return pthru;
1002}
1003
1004
1005
1006
1007
1008
1009
1010
1011
1012
1013
1014
1015
1016static mega_ext_passthru *
1017mega_prepare_extpassthru(adapter_t *adapter, scb_t *scb,
1018 struct scsi_cmnd *cmd,
1019 int channel, int target)
1020{
1021 mega_ext_passthru *epthru;
1022
1023 epthru = scb->epthru;
1024 memset(epthru, 0, sizeof(mega_ext_passthru));
1025
1026
1027 epthru->timeout = 2;
1028
1029 epthru->ars = 1;
1030 epthru->reqsenselen = 14;
1031 epthru->islogical = 0;
1032
1033 epthru->channel = (adapter->flag & BOARD_40LD) ? 0 : channel;
1034 epthru->target = (adapter->flag & BOARD_40LD) ?
1035 (channel << 4) | target : target;
1036
1037 epthru->cdblen = cmd->cmd_len;
1038 epthru->logdrv = cmd->device->lun;
1039
1040 memcpy(epthru->cdb, cmd->cmnd, cmd->cmd_len);
1041
1042
1043 scb->dma_direction = DMA_BIDIRECTIONAL;
1044
1045 switch(cmd->cmnd[0]) {
1046 case INQUIRY:
1047 case READ_CAPACITY:
1048 if(!(adapter->flag & (1L << cmd->device->channel))) {
1049
1050 dev_notice(&adapter->dev->dev,
1051 "scsi%d: scanning scsi channel %d [P%d] "
1052 "for physical devices\n",
1053 adapter->host->host_no,
1054 cmd->device->channel, channel);
1055
1056 adapter->flag |= (1L << cmd->device->channel);
1057 }
1058 fallthrough;
1059 default:
1060 epthru->numsgelements = mega_build_sglist(adapter, scb,
1061 &epthru->dataxferaddr, &epthru->dataxferlen);
1062 break;
1063 }
1064
1065 return epthru;
1066}
1067
1068static void
1069__mega_runpendq(adapter_t *adapter)
1070{
1071 scb_t *scb;
1072 struct list_head *pos, *next;
1073
1074
1075 list_for_each_safe(pos, next, &adapter->pending_list) {
1076
1077 scb = list_entry(pos, scb_t, list);
1078
1079 if( !(scb->state & SCB_ISSUED) ) {
1080
1081 if( issue_scb(adapter, scb) != 0 )
1082 return;
1083 }
1084 }
1085
1086 return;
1087}
1088
1089
1090
1091
1092
1093
1094
1095
1096
1097
1098
1099static int
1100issue_scb(adapter_t *adapter, scb_t *scb)
1101{
1102 volatile mbox64_t *mbox64 = adapter->mbox64;
1103 volatile mbox_t *mbox = adapter->mbox;
1104 unsigned int i = 0;
1105
1106 if(unlikely(mbox->m_in.busy)) {
1107 do {
1108 udelay(1);
1109 i++;
1110 } while( mbox->m_in.busy && (i < max_mbox_busy_wait) );
1111
1112 if(mbox->m_in.busy) return -1;
1113 }
1114
1115
1116 memcpy((char *)&mbox->m_out, (char *)scb->raw_mbox,
1117 sizeof(struct mbox_out));
1118
1119 mbox->m_out.cmdid = scb->idx;
1120 mbox->m_in.busy = 1;
1121
1122
1123
1124
1125
1126 atomic_inc(&adapter->pend_cmds);
1127
1128 switch (mbox->m_out.cmd) {
1129 case MEGA_MBOXCMD_LREAD64:
1130 case MEGA_MBOXCMD_LWRITE64:
1131 case MEGA_MBOXCMD_PASSTHRU64:
1132 case MEGA_MBOXCMD_EXTPTHRU:
1133 mbox64->xfer_segment_lo = mbox->m_out.xferaddr;
1134 mbox64->xfer_segment_hi = 0;
1135 mbox->m_out.xferaddr = 0xFFFFFFFF;
1136 break;
1137 default:
1138 mbox64->xfer_segment_lo = 0;
1139 mbox64->xfer_segment_hi = 0;
1140 }
1141
1142
1143
1144
1145 scb->state |= SCB_ISSUED;
1146
1147 if( likely(adapter->flag & BOARD_MEMMAP) ) {
1148 mbox->m_in.poll = 0;
1149 mbox->m_in.ack = 0;
1150 WRINDOOR(adapter, adapter->mbox_dma | 0x1);
1151 }
1152 else {
1153 irq_enable(adapter);
1154 issue_command(adapter);
1155 }
1156
1157 return 0;
1158}
1159
1160
1161
1162
1163static inline int
1164mega_busywait_mbox (adapter_t *adapter)
1165{
1166 if (adapter->mbox->m_in.busy)
1167 return __mega_busywait_mbox(adapter);
1168 return 0;
1169}
1170
1171
1172
1173
1174
1175
1176
1177
1178static int
1179issue_scb_block(adapter_t *adapter, u_char *raw_mbox)
1180{
1181 volatile mbox64_t *mbox64 = adapter->mbox64;
1182 volatile mbox_t *mbox = adapter->mbox;
1183 u8 byte;
1184
1185
1186 if(mega_busywait_mbox (adapter))
1187 goto bug_blocked_mailbox;
1188
1189
1190 memcpy((char *) mbox, raw_mbox, sizeof(struct mbox_out));
1191 mbox->m_out.cmdid = 0xFE;
1192 mbox->m_in.busy = 1;
1193
1194 switch (raw_mbox[0]) {
1195 case MEGA_MBOXCMD_LREAD64:
1196 case MEGA_MBOXCMD_LWRITE64:
1197 case MEGA_MBOXCMD_PASSTHRU64:
1198 case MEGA_MBOXCMD_EXTPTHRU:
1199 mbox64->xfer_segment_lo = mbox->m_out.xferaddr;
1200 mbox64->xfer_segment_hi = 0;
1201 mbox->m_out.xferaddr = 0xFFFFFFFF;
1202 break;
1203 default:
1204 mbox64->xfer_segment_lo = 0;
1205 mbox64->xfer_segment_hi = 0;
1206 }
1207
1208 if( likely(adapter->flag & BOARD_MEMMAP) ) {
1209 mbox->m_in.poll = 0;
1210 mbox->m_in.ack = 0;
1211 mbox->m_in.numstatus = 0xFF;
1212 mbox->m_in.status = 0xFF;
1213 WRINDOOR(adapter, adapter->mbox_dma | 0x1);
1214
1215 while((volatile u8)mbox->m_in.numstatus == 0xFF)
1216 cpu_relax();
1217
1218 mbox->m_in.numstatus = 0xFF;
1219
1220 while( (volatile u8)mbox->m_in.poll != 0x77 )
1221 cpu_relax();
1222
1223 mbox->m_in.poll = 0;
1224 mbox->m_in.ack = 0x77;
1225
1226 WRINDOOR(adapter, adapter->mbox_dma | 0x2);
1227
1228 while(RDINDOOR(adapter) & 0x2)
1229 cpu_relax();
1230 }
1231 else {
1232 irq_disable(adapter);
1233 issue_command(adapter);
1234
1235 while (!((byte = irq_state(adapter)) & INTR_VALID))
1236 cpu_relax();
1237
1238 set_irq_state(adapter, byte);
1239 irq_enable(adapter);
1240 irq_ack(adapter);
1241 }
1242
1243 return mbox->m_in.status;
1244
1245bug_blocked_mailbox:
1246 dev_warn(&adapter->dev->dev, "Blocked mailbox......!!\n");
1247 udelay (1000);
1248 return -1;
1249}
1250
1251
1252
1253
1254
1255
1256
1257
1258
1259
1260
1261static irqreturn_t
1262megaraid_isr_iomapped(int irq, void *devp)
1263{
1264 adapter_t *adapter = devp;
1265 unsigned long flags;
1266 u8 status;
1267 u8 nstatus;
1268 u8 completed[MAX_FIRMWARE_STATUS];
1269 u8 byte;
1270 int handled = 0;
1271
1272
1273
1274
1275
1276 spin_lock_irqsave(&adapter->lock, flags);
1277
1278 do {
1279
1280 byte = irq_state(adapter);
1281 if( (byte & VALID_INTR_BYTE) == 0 ) {
1282
1283
1284
1285 goto out_unlock;
1286 }
1287 set_irq_state(adapter, byte);
1288
1289 while((nstatus = (volatile u8)adapter->mbox->m_in.numstatus)
1290 == 0xFF)
1291 cpu_relax();
1292 adapter->mbox->m_in.numstatus = 0xFF;
1293
1294 status = adapter->mbox->m_in.status;
1295
1296
1297
1298
1299 atomic_sub(nstatus, &adapter->pend_cmds);
1300
1301 memcpy(completed, (void *)adapter->mbox->m_in.completed,
1302 nstatus);
1303
1304
1305 irq_ack(adapter);
1306
1307 mega_cmd_done(adapter, completed, nstatus, status);
1308
1309 mega_rundoneq(adapter);
1310
1311 handled = 1;
1312
1313
1314 if(atomic_read(&adapter->quiescent) == 0) {
1315 mega_runpendq(adapter);
1316 }
1317
1318 } while(1);
1319
1320 out_unlock:
1321
1322 spin_unlock_irqrestore(&adapter->lock, flags);
1323
1324 return IRQ_RETVAL(handled);
1325}
1326
1327
1328
1329
1330
1331
1332
1333
1334
1335
1336
1337static irqreturn_t
1338megaraid_isr_memmapped(int irq, void *devp)
1339{
1340 adapter_t *adapter = devp;
1341 unsigned long flags;
1342 u8 status;
1343 u32 dword = 0;
1344 u8 nstatus;
1345 u8 completed[MAX_FIRMWARE_STATUS];
1346 int handled = 0;
1347
1348
1349
1350
1351
1352 spin_lock_irqsave(&adapter->lock, flags);
1353
1354 do {
1355
1356 dword = RDOUTDOOR(adapter);
1357 if(dword != 0x10001234) {
1358
1359
1360
1361 goto out_unlock;
1362 }
1363 WROUTDOOR(adapter, 0x10001234);
1364
1365 while((nstatus = (volatile u8)adapter->mbox->m_in.numstatus)
1366 == 0xFF) {
1367 cpu_relax();
1368 }
1369 adapter->mbox->m_in.numstatus = 0xFF;
1370
1371 status = adapter->mbox->m_in.status;
1372
1373
1374
1375
1376 atomic_sub(nstatus, &adapter->pend_cmds);
1377
1378 memcpy(completed, (void *)adapter->mbox->m_in.completed,
1379 nstatus);
1380
1381
1382 WRINDOOR(adapter, 0x2);
1383
1384 handled = 1;
1385
1386 while( RDINDOOR(adapter) & 0x02 )
1387 cpu_relax();
1388
1389 mega_cmd_done(adapter, completed, nstatus, status);
1390
1391 mega_rundoneq(adapter);
1392
1393
1394 if(atomic_read(&adapter->quiescent) == 0) {
1395 mega_runpendq(adapter);
1396 }
1397
1398 } while(1);
1399
1400 out_unlock:
1401
1402 spin_unlock_irqrestore(&adapter->lock, flags);
1403
1404 return IRQ_RETVAL(handled);
1405}
1406
1407
1408
1409
1410
1411
1412
1413
1414
1415static void
1416mega_cmd_done(adapter_t *adapter, u8 completed[], int nstatus, int status)
1417{
1418 mega_ext_passthru *epthru = NULL;
1419 struct scatterlist *sgl;
1420 struct scsi_cmnd *cmd = NULL;
1421 mega_passthru *pthru = NULL;
1422 mbox_t *mbox = NULL;
1423 u8 c;
1424 scb_t *scb;
1425 int islogical;
1426 int cmdid;
1427 int i;
1428
1429
1430
1431
1432
1433 for( i = 0; i < nstatus; i++ ) {
1434
1435 cmdid = completed[i];
1436
1437
1438
1439
1440
1441
1442
1443
1444 if (cmdid == CMDID_INT_CMDS) {
1445 scb = &adapter->int_scb;
1446
1447 list_del_init(&scb->list);
1448 scb->state = SCB_FREE;
1449
1450 adapter->int_status = status;
1451 complete(&adapter->int_waitq);
1452 } else {
1453 scb = &adapter->scb_list[cmdid];
1454
1455
1456
1457
1458 if( !(scb->state & SCB_ISSUED) || scb->cmd == NULL ) {
1459 dev_crit(&adapter->dev->dev, "invalid command "
1460 "Id %d, scb->state:%x, scsi cmd:%p\n",
1461 cmdid, scb->state, scb->cmd);
1462
1463 continue;
1464 }
1465
1466
1467
1468
1469 if( scb->state & SCB_ABORT ) {
1470
1471 dev_warn(&adapter->dev->dev,
1472 "aborted cmd [%x] complete\n",
1473 scb->idx);
1474
1475 scb->cmd->result = (DID_ABORT << 16);
1476
1477 list_add_tail(SCSI_LIST(scb->cmd),
1478 &adapter->completed_list);
1479
1480 mega_free_scb(adapter, scb);
1481
1482 continue;
1483 }
1484
1485
1486
1487
1488 if( scb->state & SCB_RESET ) {
1489
1490 dev_warn(&adapter->dev->dev,
1491 "reset cmd [%x] complete\n",
1492 scb->idx);
1493
1494 scb->cmd->result = (DID_RESET << 16);
1495
1496 list_add_tail(SCSI_LIST(scb->cmd),
1497 &adapter->completed_list);
1498
1499 mega_free_scb (adapter, scb);
1500
1501 continue;
1502 }
1503
1504 cmd = scb->cmd;
1505 pthru = scb->pthru;
1506 epthru = scb->epthru;
1507 mbox = (mbox_t *)scb->raw_mbox;
1508
1509#if MEGA_HAVE_STATS
1510 {
1511
1512 int logdrv = mbox->m_out.logdrv;
1513
1514 islogical = adapter->logdrv_chan[cmd->channel];
1515
1516
1517
1518
1519
1520 if( status && islogical && (cmd->cmnd[0] == READ_6 ||
1521 cmd->cmnd[0] == READ_10 ||
1522 cmd->cmnd[0] == READ_12)) {
1523
1524
1525
1526
1527 adapter->rd_errors[logdrv%0x80]++;
1528 }
1529
1530 if( status && islogical && (cmd->cmnd[0] == WRITE_6 ||
1531 cmd->cmnd[0] == WRITE_10 ||
1532 cmd->cmnd[0] == WRITE_12)) {
1533
1534
1535
1536
1537 adapter->wr_errors[logdrv%0x80]++;
1538 }
1539
1540 }
1541#endif
1542 }
1543
1544
1545
1546
1547
1548
1549
1550 islogical = adapter->logdrv_chan[cmd->device->channel];
1551 if( cmd->cmnd[0] == INQUIRY && !islogical ) {
1552
1553 sgl = scsi_sglist(cmd);
1554 if( sg_page(sgl) ) {
1555 c = *(unsigned char *) sg_virt(&sgl[0]);
1556 } else {
1557 dev_warn(&adapter->dev->dev, "invalid sg\n");
1558 c = 0;
1559 }
1560
1561 if(IS_RAID_CH(adapter, cmd->device->channel) &&
1562 ((c & 0x1F ) == TYPE_DISK)) {
1563 status = 0xF0;
1564 }
1565 }
1566
1567
1568 cmd->result = 0;
1569
1570
1571 switch (status) {
1572 case 0x00:
1573 cmd->result |= (DID_OK << 16);
1574 break;
1575
1576 case 0x02:
1577
1578
1579
1580 if( mbox->m_out.cmd == MEGA_MBOXCMD_PASSTHRU ||
1581 mbox->m_out.cmd == MEGA_MBOXCMD_PASSTHRU64 ) {
1582
1583 memcpy(cmd->sense_buffer, pthru->reqsensearea,
1584 14);
1585
1586 cmd->result = (DRIVER_SENSE << 24) |
1587 (DID_OK << 16) |
1588 (CHECK_CONDITION << 1);
1589 }
1590 else {
1591 if (mbox->m_out.cmd == MEGA_MBOXCMD_EXTPTHRU) {
1592
1593 memcpy(cmd->sense_buffer,
1594 epthru->reqsensearea, 14);
1595
1596 cmd->result = (DRIVER_SENSE << 24) |
1597 (DID_OK << 16) |
1598 (CHECK_CONDITION << 1);
1599 } else {
1600 cmd->sense_buffer[0] = 0x70;
1601 cmd->sense_buffer[2] = ABORTED_COMMAND;
1602 cmd->result |= (CHECK_CONDITION << 1);
1603 }
1604 }
1605 break;
1606
1607 case 0x08:
1608
1609 cmd->result |= (DID_BUS_BUSY << 16) | status;
1610 break;
1611
1612 default:
1613#if MEGA_HAVE_CLUSTERING
1614
1615
1616
1617
1618 if( cmd->cmnd[0] == TEST_UNIT_READY ) {
1619 cmd->result |= (DID_ERROR << 16) |
1620 (RESERVATION_CONFLICT << 1);
1621 }
1622 else
1623
1624
1625
1626
1627 if( status == 1 &&
1628 (cmd->cmnd[0] == RESERVE ||
1629 cmd->cmnd[0] == RELEASE) ) {
1630
1631 cmd->result |= (DID_ERROR << 16) |
1632 (RESERVATION_CONFLICT << 1);
1633 }
1634 else
1635#endif
1636 cmd->result |= (DID_BAD_TARGET << 16)|status;
1637 }
1638
1639 mega_free_scb(adapter, scb);
1640
1641
1642 list_add_tail(SCSI_LIST(cmd), &adapter->completed_list);
1643 }
1644}
1645
1646
1647
1648
1649
1650
1651
1652static void
1653mega_rundoneq (adapter_t *adapter)
1654{
1655 struct scsi_cmnd *cmd;
1656 struct list_head *pos;
1657
1658 list_for_each(pos, &adapter->completed_list) {
1659
1660 struct scsi_pointer* spos = (struct scsi_pointer *)pos;
1661
1662 cmd = list_entry(spos, struct scsi_cmnd, SCp);
1663 cmd->scsi_done(cmd);
1664 }
1665
1666 INIT_LIST_HEAD(&adapter->completed_list);
1667}
1668
1669
1670
1671
1672
1673
1674static void
1675mega_free_scb(adapter_t *adapter, scb_t *scb)
1676{
1677 switch( scb->dma_type ) {
1678
1679 case MEGA_DMA_TYPE_NONE:
1680 break;
1681
1682 case MEGA_SGLIST:
1683 scsi_dma_unmap(scb->cmd);
1684 break;
1685 default:
1686 break;
1687 }
1688
1689
1690
1691
1692 list_del_init(&scb->list);
1693
1694
1695 scb->state = SCB_FREE;
1696 scb->cmd = NULL;
1697
1698 list_add(&scb->list, &adapter->free_list);
1699}
1700
1701
1702static int
1703__mega_busywait_mbox (adapter_t *adapter)
1704{
1705 volatile mbox_t *mbox = adapter->mbox;
1706 long counter;
1707
1708 for (counter = 0; counter < 10000; counter++) {
1709 if (!mbox->m_in.busy)
1710 return 0;
1711 udelay(100);
1712 cond_resched();
1713 }
1714 return -1;
1715}
1716
1717
1718
1719
1720
1721static int
1722mega_build_sglist(adapter_t *adapter, scb_t *scb, u32 *buf, u32 *len)
1723{
1724 struct scatterlist *sg;
1725 struct scsi_cmnd *cmd;
1726 int sgcnt;
1727 int idx;
1728
1729 cmd = scb->cmd;
1730
1731
1732
1733
1734
1735
1736 sgcnt = scsi_dma_map(cmd);
1737
1738 scb->dma_type = MEGA_SGLIST;
1739
1740 BUG_ON(sgcnt > adapter->sglen || sgcnt < 0);
1741
1742 *len = 0;
1743
1744 if (scsi_sg_count(cmd) == 1 && !adapter->has_64bit_addr) {
1745 sg = scsi_sglist(cmd);
1746 scb->dma_h_bulkdata = sg_dma_address(sg);
1747 *buf = (u32)scb->dma_h_bulkdata;
1748 *len = sg_dma_len(sg);
1749 return 0;
1750 }
1751
1752 scsi_for_each_sg(cmd, sg, sgcnt, idx) {
1753 if (adapter->has_64bit_addr) {
1754 scb->sgl64[idx].address = sg_dma_address(sg);
1755 *len += scb->sgl64[idx].length = sg_dma_len(sg);
1756 } else {
1757 scb->sgl[idx].address = sg_dma_address(sg);
1758 *len += scb->sgl[idx].length = sg_dma_len(sg);
1759 }
1760 }
1761
1762
1763 *buf = scb->sgl_dma_addr;
1764
1765
1766 return sgcnt;
1767}
1768
1769
1770
1771
1772
1773
1774
1775
1776static void
1777mega_8_to_40ld(mraid_inquiry *inquiry, mega_inquiry3 *enquiry3,
1778 mega_product_info *product_info)
1779{
1780 int i;
1781
1782 product_info->max_commands = inquiry->adapter_info.max_commands;
1783 enquiry3->rebuild_rate = inquiry->adapter_info.rebuild_rate;
1784 product_info->nchannels = inquiry->adapter_info.nchannels;
1785
1786 for (i = 0; i < 4; i++) {
1787 product_info->fw_version[i] =
1788 inquiry->adapter_info.fw_version[i];
1789
1790 product_info->bios_version[i] =
1791 inquiry->adapter_info.bios_version[i];
1792 }
1793 enquiry3->cache_flush_interval =
1794 inquiry->adapter_info.cache_flush_interval;
1795
1796 product_info->dram_size = inquiry->adapter_info.dram_size;
1797
1798 enquiry3->num_ldrv = inquiry->logdrv_info.num_ldrv;
1799
1800 for (i = 0; i < MAX_LOGICAL_DRIVES_8LD; i++) {
1801 enquiry3->ldrv_size[i] = inquiry->logdrv_info.ldrv_size[i];
1802 enquiry3->ldrv_prop[i] = inquiry->logdrv_info.ldrv_prop[i];
1803 enquiry3->ldrv_state[i] = inquiry->logdrv_info.ldrv_state[i];
1804 }
1805
1806 for (i = 0; i < (MAX_PHYSICAL_DRIVES); i++)
1807 enquiry3->pdrv_state[i] = inquiry->pdrv_info.pdrv_state[i];
1808}
1809
1810static inline void
1811mega_free_sgl(adapter_t *adapter)
1812{
1813 scb_t *scb;
1814 int i;
1815
1816 for(i = 0; i < adapter->max_cmds; i++) {
1817
1818 scb = &adapter->scb_list[i];
1819
1820 if( scb->sgl64 ) {
1821 dma_free_coherent(&adapter->dev->dev,
1822 sizeof(mega_sgl64) * adapter->sglen,
1823 scb->sgl64, scb->sgl_dma_addr);
1824
1825 scb->sgl64 = NULL;
1826 }
1827
1828 if( scb->pthru ) {
1829 dma_free_coherent(&adapter->dev->dev,
1830 sizeof(mega_passthru), scb->pthru,
1831 scb->pthru_dma_addr);
1832
1833 scb->pthru = NULL;
1834 }
1835
1836 if( scb->epthru ) {
1837 dma_free_coherent(&adapter->dev->dev,
1838 sizeof(mega_ext_passthru),
1839 scb->epthru, scb->epthru_dma_addr);
1840
1841 scb->epthru = NULL;
1842 }
1843
1844 }
1845}
1846
1847
1848
1849
1850
1851const char *
1852megaraid_info(struct Scsi_Host *host)
1853{
1854 static char buffer[512];
1855 adapter_t *adapter;
1856
1857 adapter = (adapter_t *)host->hostdata;
1858
1859 sprintf (buffer,
1860 "LSI Logic MegaRAID %s %d commands %d targs %d chans %d luns",
1861 adapter->fw_version, adapter->product_info.max_commands,
1862 adapter->host->max_id, adapter->host->max_channel,
1863 (u32)adapter->host->max_lun);
1864 return buffer;
1865}
1866
1867
1868
1869
1870
1871static int
1872megaraid_abort(struct scsi_cmnd *cmd)
1873{
1874 adapter_t *adapter;
1875 int rval;
1876
1877 adapter = (adapter_t *)cmd->device->host->hostdata;
1878
1879 rval = megaraid_abort_and_reset(adapter, cmd, SCB_ABORT);
1880
1881
1882
1883
1884
1885 mega_rundoneq(adapter);
1886
1887 return rval;
1888}
1889
1890
1891static int
1892megaraid_reset(struct scsi_cmnd *cmd)
1893{
1894 adapter_t *adapter;
1895 megacmd_t mc;
1896 int rval;
1897
1898 adapter = (adapter_t *)cmd->device->host->hostdata;
1899
1900#if MEGA_HAVE_CLUSTERING
1901 mc.cmd = MEGA_CLUSTER_CMD;
1902 mc.opcode = MEGA_RESET_RESERVATIONS;
1903
1904 if( mega_internal_command(adapter, &mc, NULL) != 0 ) {
1905 dev_warn(&adapter->dev->dev, "reservation reset failed\n");
1906 }
1907 else {
1908 dev_info(&adapter->dev->dev, "reservation reset\n");
1909 }
1910#endif
1911
1912 spin_lock_irq(&adapter->lock);
1913
1914 rval = megaraid_abort_and_reset(adapter, cmd, SCB_RESET);
1915
1916
1917
1918
1919
1920 mega_rundoneq(adapter);
1921 spin_unlock_irq(&adapter->lock);
1922
1923 return rval;
1924}
1925
1926
1927
1928
1929
1930
1931
1932
1933
1934
1935static int
1936megaraid_abort_and_reset(adapter_t *adapter, struct scsi_cmnd *cmd, int aor)
1937{
1938 struct list_head *pos, *next;
1939 scb_t *scb;
1940
1941 dev_warn(&adapter->dev->dev, "%s cmd=%x <c=%d t=%d l=%d>\n",
1942 (aor == SCB_ABORT)? "ABORTING":"RESET",
1943 cmd->cmnd[0], cmd->device->channel,
1944 cmd->device->id, (u32)cmd->device->lun);
1945
1946 if(list_empty(&adapter->pending_list))
1947 return FAILED;
1948
1949 list_for_each_safe(pos, next, &adapter->pending_list) {
1950
1951 scb = list_entry(pos, scb_t, list);
1952
1953 if (scb->cmd == cmd) {
1954
1955 scb->state |= aor;
1956
1957
1958
1959
1960
1961
1962
1963 if( scb->state & SCB_ISSUED ) {
1964
1965 dev_warn(&adapter->dev->dev,
1966 "%s[%x], fw owner\n",
1967 (aor==SCB_ABORT) ? "ABORTING":"RESET",
1968 scb->idx);
1969
1970 return FAILED;
1971 }
1972 else {
1973
1974
1975
1976
1977
1978 dev_warn(&adapter->dev->dev,
1979 "%s-[%x], driver owner\n",
1980 (aor==SCB_ABORT) ? "ABORTING":"RESET",
1981 scb->idx);
1982
1983 mega_free_scb(adapter, scb);
1984
1985 if( aor == SCB_ABORT ) {
1986 cmd->result = (DID_ABORT << 16);
1987 }
1988 else {
1989 cmd->result = (DID_RESET << 16);
1990 }
1991
1992 list_add_tail(SCSI_LIST(cmd),
1993 &adapter->completed_list);
1994
1995 return SUCCESS;
1996 }
1997 }
1998 }
1999
2000 return FAILED;
2001}
2002
2003static inline int
2004make_local_pdev(adapter_t *adapter, struct pci_dev **pdev)
2005{
2006 *pdev = pci_alloc_dev(NULL);
2007
2008 if( *pdev == NULL ) return -1;
2009
2010 memcpy(*pdev, adapter->dev, sizeof(struct pci_dev));
2011
2012 if (dma_set_mask(&(*pdev)->dev, DMA_BIT_MASK(32)) != 0) {
2013 kfree(*pdev);
2014 return -1;
2015 }
2016
2017 return 0;
2018}
2019
2020static inline void
2021free_local_pdev(struct pci_dev *pdev)
2022{
2023 kfree(pdev);
2024}
2025
2026
2027
2028
2029
2030
2031
2032
2033static inline void *
2034mega_allocate_inquiry(dma_addr_t *dma_handle, struct pci_dev *pdev)
2035{
2036 return dma_alloc_coherent(&pdev->dev, sizeof(mega_inquiry3),
2037 dma_handle, GFP_KERNEL);
2038}
2039
2040
2041static inline void
2042mega_free_inquiry(void *inquiry, dma_addr_t dma_handle, struct pci_dev *pdev)
2043{
2044 dma_free_coherent(&pdev->dev, sizeof(mega_inquiry3), inquiry,
2045 dma_handle);
2046}
2047
2048
2049#ifdef CONFIG_PROC_FS
2050
2051
2052
2053
2054
2055
2056
2057
2058
2059static int
2060proc_show_config(struct seq_file *m, void *v)
2061{
2062
2063 adapter_t *adapter = m->private;
2064
2065 seq_puts(m, MEGARAID_VERSION);
2066 if(adapter->product_info.product_name[0])
2067 seq_printf(m, "%s\n", adapter->product_info.product_name);
2068
2069 seq_puts(m, "Controller Type: ");
2070
2071 if( adapter->flag & BOARD_MEMMAP )
2072 seq_puts(m, "438/466/467/471/493/518/520/531/532\n");
2073 else
2074 seq_puts(m, "418/428/434\n");
2075
2076 if(adapter->flag & BOARD_40LD)
2077 seq_puts(m, "Controller Supports 40 Logical Drives\n");
2078
2079 if(adapter->flag & BOARD_64BIT)
2080 seq_puts(m, "Controller capable of 64-bit memory addressing\n");
2081 if( adapter->has_64bit_addr )
2082 seq_puts(m, "Controller using 64-bit memory addressing\n");
2083 else
2084 seq_puts(m, "Controller is not using 64-bit memory addressing\n");
2085
2086 seq_printf(m, "Base = %08lx, Irq = %d, ",
2087 adapter->base, adapter->host->irq);
2088
2089 seq_printf(m, "Logical Drives = %d, Channels = %d\n",
2090 adapter->numldrv, adapter->product_info.nchannels);
2091
2092 seq_printf(m, "Version =%s:%s, DRAM = %dMb\n",
2093 adapter->fw_version, adapter->bios_version,
2094 adapter->product_info.dram_size);
2095
2096 seq_printf(m, "Controller Queue Depth = %d, Driver Queue Depth = %d\n",
2097 adapter->product_info.max_commands, adapter->max_cmds);
2098
2099 seq_printf(m, "support_ext_cdb = %d\n", adapter->support_ext_cdb);
2100 seq_printf(m, "support_random_del = %d\n", adapter->support_random_del);
2101 seq_printf(m, "boot_ldrv_enabled = %d\n", adapter->boot_ldrv_enabled);
2102 seq_printf(m, "boot_ldrv = %d\n", adapter->boot_ldrv);
2103 seq_printf(m, "boot_pdrv_enabled = %d\n", adapter->boot_pdrv_enabled);
2104 seq_printf(m, "boot_pdrv_ch = %d\n", adapter->boot_pdrv_ch);
2105 seq_printf(m, "boot_pdrv_tgt = %d\n", adapter->boot_pdrv_tgt);
2106 seq_printf(m, "quiescent = %d\n",
2107 atomic_read(&adapter->quiescent));
2108 seq_printf(m, "has_cluster = %d\n", adapter->has_cluster);
2109
2110 seq_puts(m, "\nModule Parameters:\n");
2111 seq_printf(m, "max_cmd_per_lun = %d\n", max_cmd_per_lun);
2112 seq_printf(m, "max_sectors_per_io = %d\n", max_sectors_per_io);
2113 return 0;
2114}
2115
2116
2117
2118
2119
2120
2121
2122
2123static int
2124proc_show_stat(struct seq_file *m, void *v)
2125{
2126 adapter_t *adapter = m->private;
2127#if MEGA_HAVE_STATS
2128 int i;
2129#endif
2130
2131 seq_puts(m, "Statistical Information for this controller\n");
2132 seq_printf(m, "pend_cmds = %d\n", atomic_read(&adapter->pend_cmds));
2133#if MEGA_HAVE_STATS
2134 for(i = 0; i < adapter->numldrv; i++) {
2135 seq_printf(m, "Logical Drive %d:\n", i);
2136 seq_printf(m, "\tReads Issued = %lu, Writes Issued = %lu\n",
2137 adapter->nreads[i], adapter->nwrites[i]);
2138 seq_printf(m, "\tSectors Read = %lu, Sectors Written = %lu\n",
2139 adapter->nreadblocks[i], adapter->nwriteblocks[i]);
2140 seq_printf(m, "\tRead errors = %lu, Write errors = %lu\n\n",
2141 adapter->rd_errors[i], adapter->wr_errors[i]);
2142 }
2143#else
2144 seq_puts(m, "IO and error counters not compiled in driver.\n");
2145#endif
2146 return 0;
2147}
2148
2149
2150
2151
2152
2153
2154
2155
2156
2157
2158static int
2159proc_show_mbox(struct seq_file *m, void *v)
2160{
2161 adapter_t *adapter = m->private;
2162 volatile mbox_t *mbox = adapter->mbox;
2163
2164 seq_puts(m, "Contents of Mail Box Structure\n");
2165 seq_printf(m, " Fw Command = 0x%02x\n", mbox->m_out.cmd);
2166 seq_printf(m, " Cmd Sequence = 0x%02x\n", mbox->m_out.cmdid);
2167 seq_printf(m, " No of Sectors= %04d\n", mbox->m_out.numsectors);
2168 seq_printf(m, " LBA = 0x%02x\n", mbox->m_out.lba);
2169 seq_printf(m, " DTA = 0x%08x\n", mbox->m_out.xferaddr);
2170 seq_printf(m, " Logical Drive= 0x%02x\n", mbox->m_out.logdrv);
2171 seq_printf(m, " No of SG Elmt= 0x%02x\n", mbox->m_out.numsgelements);
2172 seq_printf(m, " Busy = %01x\n", mbox->m_in.busy);
2173 seq_printf(m, " Status = 0x%02x\n", mbox->m_in.status);
2174 return 0;
2175}
2176
2177
2178
2179
2180
2181
2182
2183
2184
2185static int
2186proc_show_rebuild_rate(struct seq_file *m, void *v)
2187{
2188 adapter_t *adapter = m->private;
2189 dma_addr_t dma_handle;
2190 caddr_t inquiry;
2191 struct pci_dev *pdev;
2192
2193 if( make_local_pdev(adapter, &pdev) != 0 )
2194 return 0;
2195
2196 if( (inquiry = mega_allocate_inquiry(&dma_handle, pdev)) == NULL )
2197 goto free_pdev;
2198
2199 if( mega_adapinq(adapter, dma_handle) != 0 ) {
2200 seq_puts(m, "Adapter inquiry failed.\n");
2201 dev_warn(&adapter->dev->dev, "inquiry failed\n");
2202 goto free_inquiry;
2203 }
2204
2205 if( adapter->flag & BOARD_40LD )
2206 seq_printf(m, "Rebuild Rate: [%d%%]\n",
2207 ((mega_inquiry3 *)inquiry)->rebuild_rate);
2208 else
2209 seq_printf(m, "Rebuild Rate: [%d%%]\n",
2210 ((mraid_ext_inquiry *)
2211 inquiry)->raid_inq.adapter_info.rebuild_rate);
2212
2213free_inquiry:
2214 mega_free_inquiry(inquiry, dma_handle, pdev);
2215free_pdev:
2216 free_local_pdev(pdev);
2217 return 0;
2218}
2219
2220
2221
2222
2223
2224
2225
2226
2227
2228static int
2229proc_show_battery(struct seq_file *m, void *v)
2230{
2231 adapter_t *adapter = m->private;
2232 dma_addr_t dma_handle;
2233 caddr_t inquiry;
2234 struct pci_dev *pdev;
2235 u8 battery_status;
2236
2237 if( make_local_pdev(adapter, &pdev) != 0 )
2238 return 0;
2239
2240 if( (inquiry = mega_allocate_inquiry(&dma_handle, pdev)) == NULL )
2241 goto free_pdev;
2242
2243 if( mega_adapinq(adapter, dma_handle) != 0 ) {
2244 seq_puts(m, "Adapter inquiry failed.\n");
2245 dev_warn(&adapter->dev->dev, "inquiry failed\n");
2246 goto free_inquiry;
2247 }
2248
2249 if( adapter->flag & BOARD_40LD ) {
2250 battery_status = ((mega_inquiry3 *)inquiry)->battery_status;
2251 }
2252 else {
2253 battery_status = ((mraid_ext_inquiry *)inquiry)->
2254 raid_inq.adapter_info.battery_status;
2255 }
2256
2257
2258
2259
2260 seq_printf(m, "Battery Status:[%d]", battery_status);
2261
2262 if(battery_status == MEGA_BATT_CHARGE_DONE)
2263 seq_puts(m, " Charge Done");
2264
2265 if(battery_status & MEGA_BATT_MODULE_MISSING)
2266 seq_puts(m, " Module Missing");
2267
2268 if(battery_status & MEGA_BATT_LOW_VOLTAGE)
2269 seq_puts(m, " Low Voltage");
2270
2271 if(battery_status & MEGA_BATT_TEMP_HIGH)
2272 seq_puts(m, " Temperature High");
2273
2274 if(battery_status & MEGA_BATT_PACK_MISSING)
2275 seq_puts(m, " Pack Missing");
2276
2277 if(battery_status & MEGA_BATT_CHARGE_INPROG)
2278 seq_puts(m, " Charge In-progress");
2279
2280 if(battery_status & MEGA_BATT_CHARGE_FAIL)
2281 seq_puts(m, " Charge Fail");
2282
2283 if(battery_status & MEGA_BATT_CYCLES_EXCEEDED)
2284 seq_puts(m, " Cycles Exceeded");
2285
2286 seq_putc(m, '\n');
2287
2288free_inquiry:
2289 mega_free_inquiry(inquiry, dma_handle, pdev);
2290free_pdev:
2291 free_local_pdev(pdev);
2292 return 0;
2293}
2294
2295
2296
2297
2298
2299static void
2300mega_print_inquiry(struct seq_file *m, char *scsi_inq)
2301{
2302 int i;
2303
2304 seq_puts(m, " Vendor: ");
2305 seq_write(m, scsi_inq + 8, 8);
2306 seq_puts(m, " Model: ");
2307 seq_write(m, scsi_inq + 16, 16);
2308 seq_puts(m, " Rev: ");
2309 seq_write(m, scsi_inq + 32, 4);
2310 seq_putc(m, '\n');
2311
2312 i = scsi_inq[0] & 0x1f;
2313 seq_printf(m, " Type: %s ", scsi_device_type(i));
2314
2315 seq_printf(m, " ANSI SCSI revision: %02x",
2316 scsi_inq[2] & 0x07);
2317
2318 if( (scsi_inq[2] & 0x07) == 1 && (scsi_inq[3] & 0x0f) == 1 )
2319 seq_puts(m, " CCS\n");
2320 else
2321 seq_putc(m, '\n');
2322}
2323
2324
2325
2326
2327
2328
2329
2330
2331
2332static int
2333proc_show_pdrv(struct seq_file *m, adapter_t *adapter, int channel)
2334{
2335 dma_addr_t dma_handle;
2336 char *scsi_inq;
2337 dma_addr_t scsi_inq_dma_handle;
2338 caddr_t inquiry;
2339 struct pci_dev *pdev;
2340 u8 *pdrv_state;
2341 u8 state;
2342 int tgt;
2343 int max_channels;
2344 int i;
2345
2346 if( make_local_pdev(adapter, &pdev) != 0 )
2347 return 0;
2348
2349 if( (inquiry = mega_allocate_inquiry(&dma_handle, pdev)) == NULL )
2350 goto free_pdev;
2351
2352 if( mega_adapinq(adapter, dma_handle) != 0 ) {
2353 seq_puts(m, "Adapter inquiry failed.\n");
2354 dev_warn(&adapter->dev->dev, "inquiry failed\n");
2355 goto free_inquiry;
2356 }
2357
2358
2359 scsi_inq = dma_alloc_coherent(&pdev->dev, 256, &scsi_inq_dma_handle,
2360 GFP_KERNEL);
2361 if( scsi_inq == NULL ) {
2362 seq_puts(m, "memory not available for scsi inq.\n");
2363 goto free_inquiry;
2364 }
2365
2366 if( adapter->flag & BOARD_40LD ) {
2367 pdrv_state = ((mega_inquiry3 *)inquiry)->pdrv_state;
2368 }
2369 else {
2370 pdrv_state = ((mraid_ext_inquiry *)inquiry)->
2371 raid_inq.pdrv_info.pdrv_state;
2372 }
2373
2374 max_channels = adapter->product_info.nchannels;
2375
2376 if( channel >= max_channels ) {
2377 goto free_pci;
2378 }
2379
2380 for( tgt = 0; tgt <= MAX_TARGET; tgt++ ) {
2381
2382 i = channel*16 + tgt;
2383
2384 state = *(pdrv_state + i);
2385 switch( state & 0x0F ) {
2386 case PDRV_ONLINE:
2387 seq_printf(m, "Channel:%2d Id:%2d State: Online",
2388 channel, tgt);
2389 break;
2390
2391 case PDRV_FAILED:
2392 seq_printf(m, "Channel:%2d Id:%2d State: Failed",
2393 channel, tgt);
2394 break;
2395
2396 case PDRV_RBLD:
2397 seq_printf(m, "Channel:%2d Id:%2d State: Rebuild",
2398 channel, tgt);
2399 break;
2400
2401 case PDRV_HOTSPARE:
2402 seq_printf(m, "Channel:%2d Id:%2d State: Hot spare",
2403 channel, tgt);
2404 break;
2405
2406 default:
2407 seq_printf(m, "Channel:%2d Id:%2d State: Un-configured",
2408 channel, tgt);
2409 break;
2410 }
2411
2412
2413
2414
2415
2416
2417 memset(scsi_inq, 0, 256);
2418 if( mega_internal_dev_inquiry(adapter, channel, tgt,
2419 scsi_inq_dma_handle) ||
2420 (scsi_inq[0] & 0x1F) != TYPE_DISK ) {
2421 continue;
2422 }
2423
2424
2425
2426
2427
2428 seq_puts(m, ".\n");
2429 mega_print_inquiry(m, scsi_inq);
2430 }
2431
2432free_pci:
2433 dma_free_coherent(&pdev->dev, 256, scsi_inq, scsi_inq_dma_handle);
2434free_inquiry:
2435 mega_free_inquiry(inquiry, dma_handle, pdev);
2436free_pdev:
2437 free_local_pdev(pdev);
2438 return 0;
2439}
2440
2441
2442
2443
2444
2445
2446
2447
2448static int
2449proc_show_pdrv_ch0(struct seq_file *m, void *v)
2450{
2451 return proc_show_pdrv(m, m->private, 0);
2452}
2453
2454
2455
2456
2457
2458
2459
2460
2461
2462static int
2463proc_show_pdrv_ch1(struct seq_file *m, void *v)
2464{
2465 return proc_show_pdrv(m, m->private, 1);
2466}
2467
2468
2469
2470
2471
2472
2473
2474
2475
2476static int
2477proc_show_pdrv_ch2(struct seq_file *m, void *v)
2478{
2479 return proc_show_pdrv(m, m->private, 2);
2480}
2481
2482
2483
2484
2485
2486
2487
2488
2489
2490static int
2491proc_show_pdrv_ch3(struct seq_file *m, void *v)
2492{
2493 return proc_show_pdrv(m, m->private, 3);
2494}
2495
2496
2497
2498
2499
2500
2501
2502
2503
2504
2505
2506
2507static int
2508proc_show_rdrv(struct seq_file *m, adapter_t *adapter, int start, int end )
2509{
2510 dma_addr_t dma_handle;
2511 logdrv_param *lparam;
2512 megacmd_t mc;
2513 char *disk_array;
2514 dma_addr_t disk_array_dma_handle;
2515 caddr_t inquiry;
2516 struct pci_dev *pdev;
2517 u8 *rdrv_state;
2518 int num_ldrv;
2519 u32 array_sz;
2520 int i;
2521
2522 if( make_local_pdev(adapter, &pdev) != 0 )
2523 return 0;
2524
2525 if( (inquiry = mega_allocate_inquiry(&dma_handle, pdev)) == NULL )
2526 goto free_pdev;
2527
2528 if( mega_adapinq(adapter, dma_handle) != 0 ) {
2529 seq_puts(m, "Adapter inquiry failed.\n");
2530 dev_warn(&adapter->dev->dev, "inquiry failed\n");
2531 goto free_inquiry;
2532 }
2533
2534 memset(&mc, 0, sizeof(megacmd_t));
2535
2536 if( adapter->flag & BOARD_40LD ) {
2537 array_sz = sizeof(disk_array_40ld);
2538
2539 rdrv_state = ((mega_inquiry3 *)inquiry)->ldrv_state;
2540
2541 num_ldrv = ((mega_inquiry3 *)inquiry)->num_ldrv;
2542 }
2543 else {
2544 array_sz = sizeof(disk_array_8ld);
2545
2546 rdrv_state = ((mraid_ext_inquiry *)inquiry)->
2547 raid_inq.logdrv_info.ldrv_state;
2548
2549 num_ldrv = ((mraid_ext_inquiry *)inquiry)->
2550 raid_inq.logdrv_info.num_ldrv;
2551 }
2552
2553 disk_array = dma_alloc_coherent(&pdev->dev, array_sz,
2554 &disk_array_dma_handle, GFP_KERNEL);
2555
2556 if( disk_array == NULL ) {
2557 seq_puts(m, "memory not available.\n");
2558 goto free_inquiry;
2559 }
2560
2561 mc.xferaddr = (u32)disk_array_dma_handle;
2562
2563 if( adapter->flag & BOARD_40LD ) {
2564 mc.cmd = FC_NEW_CONFIG;
2565 mc.opcode = OP_DCMD_READ_CONFIG;
2566
2567 if( mega_internal_command(adapter, &mc, NULL) ) {
2568 seq_puts(m, "40LD read config failed.\n");
2569 goto free_pci;
2570 }
2571
2572 }
2573 else {
2574 mc.cmd = NEW_READ_CONFIG_8LD;
2575
2576 if( mega_internal_command(adapter, &mc, NULL) ) {
2577 mc.cmd = READ_CONFIG_8LD;
2578 if( mega_internal_command(adapter, &mc, NULL) ) {
2579 seq_puts(m, "8LD read config failed.\n");
2580 goto free_pci;
2581 }
2582 }
2583 }
2584
2585 for( i = start; i < ( (end+1 < num_ldrv) ? end+1 : num_ldrv ); i++ ) {
2586
2587 if( adapter->flag & BOARD_40LD ) {
2588 lparam =
2589 &((disk_array_40ld *)disk_array)->ldrv[i].lparam;
2590 }
2591 else {
2592 lparam =
2593 &((disk_array_8ld *)disk_array)->ldrv[i].lparam;
2594 }
2595
2596
2597
2598
2599
2600 seq_printf(m, "Logical drive:%2d:, ", i);
2601
2602 switch( rdrv_state[i] & 0x0F ) {
2603 case RDRV_OFFLINE:
2604 seq_puts(m, "state: offline");
2605 break;
2606 case RDRV_DEGRADED:
2607 seq_puts(m, "state: degraded");
2608 break;
2609 case RDRV_OPTIMAL:
2610 seq_puts(m, "state: optimal");
2611 break;
2612 case RDRV_DELETED:
2613 seq_puts(m, "state: deleted");
2614 break;
2615 default:
2616 seq_puts(m, "state: unknown");
2617 break;
2618 }
2619
2620
2621
2622
2623
2624 if( (rdrv_state[i] & 0xF0) == 0x20 )
2625 seq_puts(m, ", check-consistency in progress");
2626 else if( (rdrv_state[i] & 0xF0) == 0x10 )
2627 seq_puts(m, ", initialization in progress");
2628
2629 seq_putc(m, '\n');
2630
2631 seq_printf(m, "Span depth:%3d, ", lparam->span_depth);
2632 seq_printf(m, "RAID level:%3d, ", lparam->level);
2633 seq_printf(m, "Stripe size:%3d, ",
2634 lparam->stripe_sz ? lparam->stripe_sz/2: 128);
2635 seq_printf(m, "Row size:%3d\n", lparam->row_size);
2636
2637 seq_puts(m, "Read Policy: ");
2638 switch(lparam->read_ahead) {
2639 case NO_READ_AHEAD:
2640 seq_puts(m, "No read ahead, ");
2641 break;
2642 case READ_AHEAD:
2643 seq_puts(m, "Read ahead, ");
2644 break;
2645 case ADAP_READ_AHEAD:
2646 seq_puts(m, "Adaptive, ");
2647 break;
2648
2649 }
2650
2651 seq_puts(m, "Write Policy: ");
2652 switch(lparam->write_mode) {
2653 case WRMODE_WRITE_THRU:
2654 seq_puts(m, "Write thru, ");
2655 break;
2656 case WRMODE_WRITE_BACK:
2657 seq_puts(m, "Write back, ");
2658 break;
2659 }
2660
2661 seq_puts(m, "Cache Policy: ");
2662 switch(lparam->direct_io) {
2663 case CACHED_IO:
2664 seq_puts(m, "Cached IO\n\n");
2665 break;
2666 case DIRECT_IO:
2667 seq_puts(m, "Direct IO\n\n");
2668 break;
2669 }
2670 }
2671
2672free_pci:
2673 dma_free_coherent(&pdev->dev, array_sz, disk_array,
2674 disk_array_dma_handle);
2675free_inquiry:
2676 mega_free_inquiry(inquiry, dma_handle, pdev);
2677free_pdev:
2678 free_local_pdev(pdev);
2679 return 0;
2680}
2681
2682
2683
2684
2685
2686
2687
2688
2689static int
2690proc_show_rdrv_10(struct seq_file *m, void *v)
2691{
2692 return proc_show_rdrv(m, m->private, 0, 9);
2693}
2694
2695
2696
2697
2698
2699
2700
2701
2702
2703static int
2704proc_show_rdrv_20(struct seq_file *m, void *v)
2705{
2706 return proc_show_rdrv(m, m->private, 10, 19);
2707}
2708
2709
2710
2711
2712
2713
2714
2715
2716
2717static int
2718proc_show_rdrv_30(struct seq_file *m, void *v)
2719{
2720 return proc_show_rdrv(m, m->private, 20, 29);
2721}
2722
2723
2724
2725
2726
2727
2728
2729
2730
2731static int
2732proc_show_rdrv_40(struct seq_file *m, void *v)
2733{
2734 return proc_show_rdrv(m, m->private, 30, 39);
2735}
2736
2737
2738
2739
2740
2741
2742
2743
2744static void
2745mega_create_proc_entry(int index, struct proc_dir_entry *parent)
2746{
2747 adapter_t *adapter = hba_soft_state[index];
2748 struct proc_dir_entry *dir;
2749 u8 string[16];
2750
2751 sprintf(string, "hba%d", adapter->host->host_no);
2752 dir = proc_mkdir_data(string, 0, parent, adapter);
2753 if (!dir) {
2754 dev_warn(&adapter->dev->dev, "proc_mkdir failed\n");
2755 return;
2756 }
2757
2758 proc_create_single_data("config", S_IRUSR, dir,
2759 proc_show_config, adapter);
2760 proc_create_single_data("stat", S_IRUSR, dir,
2761 proc_show_stat, adapter);
2762 proc_create_single_data("mailbox", S_IRUSR, dir,
2763 proc_show_mbox, adapter);
2764#if MEGA_HAVE_ENH_PROC
2765 proc_create_single_data("rebuild-rate", S_IRUSR, dir,
2766 proc_show_rebuild_rate, adapter);
2767 proc_create_single_data("battery-status", S_IRUSR, dir,
2768 proc_show_battery, adapter);
2769 proc_create_single_data("diskdrives-ch0", S_IRUSR, dir,
2770 proc_show_pdrv_ch0, adapter);
2771 proc_create_single_data("diskdrives-ch1", S_IRUSR, dir,
2772 proc_show_pdrv_ch1, adapter);
2773 proc_create_single_data("diskdrives-ch2", S_IRUSR, dir,
2774 proc_show_pdrv_ch2, adapter);
2775 proc_create_single_data("diskdrives-ch3", S_IRUSR, dir,
2776 proc_show_pdrv_ch3, adapter);
2777 proc_create_single_data("raiddrives-0-9", S_IRUSR, dir,
2778 proc_show_rdrv_10, adapter);
2779 proc_create_single_data("raiddrives-10-19", S_IRUSR, dir,
2780 proc_show_rdrv_20, adapter);
2781 proc_create_single_data("raiddrives-20-29", S_IRUSR, dir,
2782 proc_show_rdrv_30, adapter);
2783 proc_create_single_data("raiddrives-30-39", S_IRUSR, dir,
2784 proc_show_rdrv_40, adapter);
2785#endif
2786}
2787
2788#else
2789static inline void mega_create_proc_entry(int index, struct proc_dir_entry *parent)
2790{
2791}
2792#endif
2793
2794
2795
2796
2797
2798
2799
2800static int
2801megaraid_biosparam(struct scsi_device *sdev, struct block_device *bdev,
2802 sector_t capacity, int geom[])
2803{
2804 adapter_t *adapter;
2805 int heads;
2806 int sectors;
2807 int cylinders;
2808
2809
2810 adapter = (adapter_t *)sdev->host->hostdata;
2811
2812 if (IS_RAID_CH(adapter, sdev->channel)) {
2813
2814 heads = 64;
2815 sectors = 32;
2816 cylinders = (ulong)capacity / (heads * sectors);
2817
2818
2819
2820
2821
2822 if ((ulong)capacity >= 0x200000) {
2823 heads = 255;
2824 sectors = 63;
2825 cylinders = (ulong)capacity / (heads * sectors);
2826 }
2827
2828
2829 geom[0] = heads;
2830 geom[1] = sectors;
2831 geom[2] = cylinders;
2832 }
2833 else {
2834 if (scsi_partsize(bdev, capacity, geom))
2835 return 0;
2836
2837 dev_info(&adapter->dev->dev,
2838 "invalid partition on this disk on channel %d\n",
2839 sdev->channel);
2840
2841
2842 heads = 64;
2843 sectors = 32;
2844 cylinders = (ulong)capacity / (heads * sectors);
2845
2846
2847 if ((ulong)capacity >= 0x200000) {
2848 heads = 255;
2849 sectors = 63;
2850 cylinders = (ulong)capacity / (heads * sectors);
2851 }
2852
2853
2854 geom[0] = heads;
2855 geom[1] = sectors;
2856 geom[2] = cylinders;
2857 }
2858
2859 return 0;
2860}
2861
2862
2863
2864
2865
2866
2867
2868
2869
2870static int
2871mega_init_scb(adapter_t *adapter)
2872{
2873 scb_t *scb;
2874 int i;
2875
2876 for( i = 0; i < adapter->max_cmds; i++ ) {
2877
2878 scb = &adapter->scb_list[i];
2879
2880 scb->sgl64 = NULL;
2881 scb->sgl = NULL;
2882 scb->pthru = NULL;
2883 scb->epthru = NULL;
2884 }
2885
2886 for( i = 0; i < adapter->max_cmds; i++ ) {
2887
2888 scb = &adapter->scb_list[i];
2889
2890 scb->idx = i;
2891
2892 scb->sgl64 = dma_alloc_coherent(&adapter->dev->dev,
2893 sizeof(mega_sgl64) * adapter->sglen,
2894 &scb->sgl_dma_addr, GFP_KERNEL);
2895
2896 scb->sgl = (mega_sglist *)scb->sgl64;
2897
2898 if( !scb->sgl ) {
2899 dev_warn(&adapter->dev->dev, "RAID: Can't allocate sglist\n");
2900 mega_free_sgl(adapter);
2901 return -1;
2902 }
2903
2904 scb->pthru = dma_alloc_coherent(&adapter->dev->dev,
2905 sizeof(mega_passthru),
2906 &scb->pthru_dma_addr, GFP_KERNEL);
2907
2908 if( !scb->pthru ) {
2909 dev_warn(&adapter->dev->dev, "RAID: Can't allocate passthru\n");
2910 mega_free_sgl(adapter);
2911 return -1;
2912 }
2913
2914 scb->epthru = dma_alloc_coherent(&adapter->dev->dev,
2915 sizeof(mega_ext_passthru),
2916 &scb->epthru_dma_addr, GFP_KERNEL);
2917
2918 if( !scb->epthru ) {
2919 dev_warn(&adapter->dev->dev,
2920 "Can't allocate extended passthru\n");
2921 mega_free_sgl(adapter);
2922 return -1;
2923 }
2924
2925
2926 scb->dma_type = MEGA_DMA_TYPE_NONE;
2927
2928
2929
2930
2931
2932
2933 scb->state = SCB_FREE;
2934 scb->cmd = NULL;
2935 list_add(&scb->list, &adapter->free_list);
2936 }
2937
2938 return 0;
2939}
2940
2941
2942
2943
2944
2945
2946
2947
2948
2949
2950static int
2951megadev_open (struct inode *inode, struct file *filep)
2952{
2953
2954
2955
2956 if( !capable(CAP_SYS_ADMIN) ) return -EACCES;
2957
2958 return 0;
2959}
2960
2961
2962
2963
2964
2965
2966
2967
2968
2969
2970
2971
2972
2973static int
2974megadev_ioctl(struct file *filep, unsigned int cmd, unsigned long arg)
2975{
2976 adapter_t *adapter;
2977 nitioctl_t uioc;
2978 int adapno;
2979 int rval;
2980 mega_passthru __user *upthru;
2981 mega_passthru *pthru;
2982 dma_addr_t pthru_dma_hndl;
2983 void *data = NULL;
2984 dma_addr_t data_dma_hndl;
2985 megacmd_t mc;
2986#if MEGA_HAVE_STATS
2987 megastat_t __user *ustats = NULL;
2988 int num_ldrv = 0;
2989#endif
2990 u32 uxferaddr = 0;
2991 struct pci_dev *pdev;
2992
2993
2994
2995
2996
2997 if( (_IOC_TYPE(cmd) != MEGAIOC_MAGIC) && (cmd != USCSICMD) ) {
2998 return -EINVAL;
2999 }
3000
3001
3002
3003
3004
3005
3006
3007
3008
3009 memset(&uioc, 0, sizeof(nitioctl_t));
3010 if( (rval = mega_m_to_n( (void __user *)arg, &uioc)) != 0 )
3011 return rval;
3012
3013
3014 switch( uioc.opcode ) {
3015
3016 case GET_DRIVER_VER:
3017 if( put_user(driver_ver, (u32 __user *)uioc.uioc_uaddr) )
3018 return (-EFAULT);
3019
3020 break;
3021
3022 case GET_N_ADAP:
3023 if( put_user(hba_count, (u32 __user *)uioc.uioc_uaddr) )
3024 return (-EFAULT);
3025
3026
3027
3028
3029
3030
3031 return hba_count;
3032
3033 case GET_ADAP_INFO:
3034
3035
3036
3037
3038 if( (adapno = GETADAP(uioc.adapno)) >= hba_count )
3039 return (-ENODEV);
3040
3041 if( copy_to_user(uioc.uioc_uaddr, mcontroller+adapno,
3042 sizeof(struct mcontroller)) )
3043 return (-EFAULT);
3044 break;
3045
3046#if MEGA_HAVE_STATS
3047
3048 case GET_STATS:
3049
3050
3051
3052 if( (adapno = GETADAP(uioc.adapno)) >= hba_count )
3053 return (-ENODEV);
3054
3055 adapter = hba_soft_state[adapno];
3056
3057 ustats = uioc.uioc_uaddr;
3058
3059 if( copy_from_user(&num_ldrv, &ustats->num_ldrv, sizeof(int)) )
3060 return (-EFAULT);
3061
3062
3063
3064
3065 if( num_ldrv >= MAX_LOGICAL_DRIVES_40LD ) return -EINVAL;
3066
3067 if( copy_to_user(ustats->nreads, adapter->nreads,
3068 num_ldrv*sizeof(u32)) )
3069 return -EFAULT;
3070
3071 if( copy_to_user(ustats->nreadblocks, adapter->nreadblocks,
3072 num_ldrv*sizeof(u32)) )
3073 return -EFAULT;
3074
3075 if( copy_to_user(ustats->nwrites, adapter->nwrites,
3076 num_ldrv*sizeof(u32)) )
3077 return -EFAULT;
3078
3079 if( copy_to_user(ustats->nwriteblocks, adapter->nwriteblocks,
3080 num_ldrv*sizeof(u32)) )
3081 return -EFAULT;
3082
3083 if( copy_to_user(ustats->rd_errors, adapter->rd_errors,
3084 num_ldrv*sizeof(u32)) )
3085 return -EFAULT;
3086
3087 if( copy_to_user(ustats->wr_errors, adapter->wr_errors,
3088 num_ldrv*sizeof(u32)) )
3089 return -EFAULT;
3090
3091 return 0;
3092
3093#endif
3094 case MBOX_CMD:
3095
3096
3097
3098
3099 if( (adapno = GETADAP(uioc.adapno)) >= hba_count )
3100 return (-ENODEV);
3101
3102 adapter = hba_soft_state[adapno];
3103
3104
3105
3106
3107
3108 if( uioc.uioc_rmbox[0] == FC_DEL_LOGDRV &&
3109 uioc.uioc_rmbox[2] == OP_DEL_LOGDRV ) {
3110
3111
3112
3113
3114 if( !adapter->support_random_del ) {
3115 dev_warn(&adapter->dev->dev, "logdrv "
3116 "delete on non-supporting F/W\n");
3117
3118 return (-EINVAL);
3119 }
3120
3121 rval = mega_del_logdrv( adapter, uioc.uioc_rmbox[3] );
3122
3123 if( rval == 0 ) {
3124 memset(&mc, 0, sizeof(megacmd_t));
3125
3126 mc.status = rval;
3127
3128 rval = mega_n_to_m((void __user *)arg, &mc);
3129 }
3130
3131 return rval;
3132 }
3133
3134
3135
3136
3137 if( uioc.uioc_rmbox[0] == MEGA_MBOXCMD_PASSTHRU64 ||
3138 uioc.uioc_rmbox[0] == MEGA_MBOXCMD_EXTPTHRU ) {
3139
3140 dev_warn(&adapter->dev->dev, "rejected passthru\n");
3141
3142 return (-EINVAL);
3143 }
3144
3145
3146
3147
3148
3149 if( make_local_pdev(adapter, &pdev) != 0 )
3150 return -EIO;
3151
3152
3153 if( uioc.uioc_rmbox[0] == MEGA_MBOXCMD_PASSTHRU ) {
3154
3155
3156 pthru = dma_alloc_coherent(&pdev->dev,
3157 sizeof(mega_passthru),
3158 &pthru_dma_hndl, GFP_KERNEL);
3159
3160 if( pthru == NULL ) {
3161 free_local_pdev(pdev);
3162 return (-ENOMEM);
3163 }
3164
3165
3166
3167
3168 upthru = (mega_passthru __user *)(unsigned long)MBOX(uioc)->xferaddr;
3169
3170
3171
3172
3173 if( copy_from_user(pthru, upthru,
3174 sizeof(mega_passthru)) ) {
3175
3176 dma_free_coherent(&pdev->dev,
3177 sizeof(mega_passthru),
3178 pthru, pthru_dma_hndl);
3179
3180 free_local_pdev(pdev);
3181
3182 return (-EFAULT);
3183 }
3184
3185
3186
3187
3188 if( pthru->dataxferlen ) {
3189 data = dma_alloc_coherent(&pdev->dev,
3190 pthru->dataxferlen,
3191 &data_dma_hndl,
3192 GFP_KERNEL);
3193
3194 if( data == NULL ) {
3195 dma_free_coherent(&pdev->dev,
3196 sizeof(mega_passthru),
3197 pthru,
3198 pthru_dma_hndl);
3199
3200 free_local_pdev(pdev);
3201
3202 return (-ENOMEM);
3203 }
3204
3205
3206
3207
3208
3209 uxferaddr = pthru->dataxferaddr;
3210 pthru->dataxferaddr = data_dma_hndl;
3211 }
3212
3213
3214
3215
3216
3217 if( pthru->dataxferlen && (uioc.flags & UIOC_WR) ) {
3218
3219
3220
3221 if( copy_from_user(data, (char __user *)(unsigned long) uxferaddr,
3222 pthru->dataxferlen) ) {
3223 rval = (-EFAULT);
3224 goto freemem_and_return;
3225 }
3226 }
3227
3228 memset(&mc, 0, sizeof(megacmd_t));
3229
3230 mc.cmd = MEGA_MBOXCMD_PASSTHRU;
3231 mc.xferaddr = (u32)pthru_dma_hndl;
3232
3233
3234
3235
3236 mega_internal_command(adapter, &mc, pthru);
3237
3238 rval = mega_n_to_m((void __user *)arg, &mc);
3239
3240 if( rval ) goto freemem_and_return;
3241
3242
3243
3244
3245
3246 if( pthru->dataxferlen && (uioc.flags & UIOC_RD) ) {
3247 if( copy_to_user((char __user *)(unsigned long) uxferaddr, data,
3248 pthru->dataxferlen) ) {
3249 rval = (-EFAULT);
3250 }
3251 }
3252
3253
3254
3255
3256
3257 if (copy_to_user(upthru->reqsensearea,
3258 pthru->reqsensearea, 14))
3259 rval = -EFAULT;
3260
3261freemem_and_return:
3262 if( pthru->dataxferlen ) {
3263 dma_free_coherent(&pdev->dev,
3264 pthru->dataxferlen, data,
3265 data_dma_hndl);
3266 }
3267
3268 dma_free_coherent(&pdev->dev, sizeof(mega_passthru),
3269 pthru, pthru_dma_hndl);
3270
3271 free_local_pdev(pdev);
3272
3273 return rval;
3274 }
3275 else {
3276
3277
3278
3279
3280
3281 if( uioc.xferlen ) {
3282 data = dma_alloc_coherent(&pdev->dev,
3283 uioc.xferlen,
3284 &data_dma_hndl,
3285 GFP_KERNEL);
3286
3287 if( data == NULL ) {
3288 free_local_pdev(pdev);
3289 return (-ENOMEM);
3290 }
3291
3292 uxferaddr = MBOX(uioc)->xferaddr;
3293 }
3294
3295
3296
3297
3298 if( uioc.xferlen && (uioc.flags & UIOC_WR) ) {
3299
3300
3301
3302 if( copy_from_user(data, (char __user *)(unsigned long) uxferaddr,
3303 uioc.xferlen) ) {
3304
3305 dma_free_coherent(&pdev->dev,
3306 uioc.xferlen, data,
3307 data_dma_hndl);
3308
3309 free_local_pdev(pdev);
3310
3311 return (-EFAULT);
3312 }
3313 }
3314
3315 memcpy(&mc, MBOX(uioc), sizeof(megacmd_t));
3316
3317 mc.xferaddr = (u32)data_dma_hndl;
3318
3319
3320
3321
3322 mega_internal_command(adapter, &mc, NULL);
3323
3324 rval = mega_n_to_m((void __user *)arg, &mc);
3325
3326 if( rval ) {
3327 if( uioc.xferlen ) {
3328 dma_free_coherent(&pdev->dev,
3329 uioc.xferlen, data,
3330 data_dma_hndl);
3331 }
3332
3333 free_local_pdev(pdev);
3334
3335 return rval;
3336 }
3337
3338
3339
3340
3341 if( uioc.xferlen && (uioc.flags & UIOC_RD) ) {
3342 if( copy_to_user((char __user *)(unsigned long) uxferaddr, data,
3343 uioc.xferlen) ) {
3344
3345 rval = (-EFAULT);
3346 }
3347 }
3348
3349 if( uioc.xferlen ) {
3350 dma_free_coherent(&pdev->dev, uioc.xferlen,
3351 data, data_dma_hndl);
3352 }
3353
3354 free_local_pdev(pdev);
3355
3356 return rval;
3357 }
3358
3359 default:
3360 return (-EINVAL);
3361 }
3362
3363 return 0;
3364}
3365
3366static long
3367megadev_unlocked_ioctl(struct file *filep, unsigned int cmd, unsigned long arg)
3368{
3369 int ret;
3370
3371 mutex_lock(&megadev_mutex);
3372 ret = megadev_ioctl(filep, cmd, arg);
3373 mutex_unlock(&megadev_mutex);
3374
3375 return ret;
3376}
3377
3378
3379
3380
3381
3382
3383
3384
3385
3386
3387
3388static int
3389mega_m_to_n(void __user *arg, nitioctl_t *uioc)
3390{
3391 struct uioctl_t uioc_mimd;
3392 char signature[8] = {0};
3393 u8 opcode;
3394 u8 subopcode;
3395
3396
3397
3398
3399
3400
3401
3402
3403
3404 if( copy_from_user(signature, arg, 7) )
3405 return (-EFAULT);
3406
3407 if( memcmp(signature, "MEGANIT", 7) == 0 ) {
3408
3409
3410
3411
3412
3413
3414
3415 return -EINVAL;
3416#if 0
3417 if( copy_from_user(uioc, arg, sizeof(nitioctl_t)) )
3418 return (-EFAULT);
3419 return 0;
3420#endif
3421 }
3422
3423
3424
3425
3426
3427
3428 if( copy_from_user(&uioc_mimd, arg, sizeof(struct uioctl_t)) )
3429 return (-EFAULT);
3430
3431
3432
3433
3434
3435 opcode = uioc_mimd.ui.fcs.opcode;
3436 subopcode = uioc_mimd.ui.fcs.subopcode;
3437
3438 switch (opcode) {
3439 case 0x82:
3440
3441 switch (subopcode) {
3442
3443 case MEGAIOC_QDRVRVER:
3444 uioc->opcode = GET_DRIVER_VER;
3445 uioc->uioc_uaddr = uioc_mimd.data;
3446 break;
3447
3448 case MEGAIOC_QNADAP:
3449 uioc->opcode = GET_N_ADAP;
3450 uioc->uioc_uaddr = uioc_mimd.data;
3451 break;
3452
3453 case MEGAIOC_QADAPINFO:
3454 uioc->opcode = GET_ADAP_INFO;
3455 uioc->adapno = uioc_mimd.ui.fcs.adapno;
3456 uioc->uioc_uaddr = uioc_mimd.data;
3457 break;
3458
3459 default:
3460 return(-EINVAL);
3461 }
3462
3463 break;
3464
3465
3466 case 0x81:
3467
3468 uioc->opcode = MBOX_CMD;
3469 uioc->adapno = uioc_mimd.ui.fcs.adapno;
3470
3471 memcpy(uioc->uioc_rmbox, uioc_mimd.mbox, 18);
3472
3473 uioc->xferlen = uioc_mimd.ui.fcs.length;
3474
3475 if( uioc_mimd.outlen ) uioc->flags = UIOC_RD;
3476 if( uioc_mimd.inlen ) uioc->flags |= UIOC_WR;
3477
3478 break;
3479
3480 case 0x80:
3481
3482 uioc->opcode = MBOX_CMD;
3483 uioc->adapno = uioc_mimd.ui.fcs.adapno;
3484
3485 memcpy(uioc->uioc_rmbox, uioc_mimd.mbox, 18);
3486
3487
3488
3489
3490 uioc->xferlen = uioc_mimd.outlen > uioc_mimd.inlen ?
3491 uioc_mimd.outlen : uioc_mimd.inlen;
3492
3493 if( uioc_mimd.outlen ) uioc->flags = UIOC_RD;
3494 if( uioc_mimd.inlen ) uioc->flags |= UIOC_WR;
3495
3496 break;
3497
3498 default:
3499 return (-EINVAL);
3500
3501 }
3502
3503 return 0;
3504}
3505
3506
3507
3508
3509
3510
3511
3512
3513
3514static int
3515mega_n_to_m(void __user *arg, megacmd_t *mc)
3516{
3517 nitioctl_t __user *uiocp;
3518 megacmd_t __user *umc;
3519 mega_passthru __user *upthru;
3520 struct uioctl_t __user *uioc_mimd;
3521 char signature[8] = {0};
3522
3523
3524
3525
3526 if( copy_from_user(signature, arg, 7) )
3527 return -EFAULT;
3528
3529 if( memcmp(signature, "MEGANIT", 7) == 0 ) {
3530
3531 uiocp = arg;
3532
3533 if( put_user(mc->status, (u8 __user *)&MBOX_P(uiocp)->status) )
3534 return (-EFAULT);
3535
3536 if( mc->cmd == MEGA_MBOXCMD_PASSTHRU ) {
3537
3538 umc = MBOX_P(uiocp);
3539
3540 if (get_user(upthru, (mega_passthru __user * __user *)&umc->xferaddr))
3541 return -EFAULT;
3542
3543 if( put_user(mc->status, (u8 __user *)&upthru->scsistatus))
3544 return (-EFAULT);
3545 }
3546 }
3547 else {
3548 uioc_mimd = arg;
3549
3550 if( put_user(mc->status, (u8 __user *)&uioc_mimd->mbox[17]) )
3551 return (-EFAULT);
3552
3553 if( mc->cmd == MEGA_MBOXCMD_PASSTHRU ) {
3554
3555 umc = (megacmd_t __user *)uioc_mimd->mbox;
3556
3557 if (get_user(upthru, (mega_passthru __user * __user *)&umc->xferaddr))
3558 return (-EFAULT);
3559
3560 if( put_user(mc->status, (u8 __user *)&upthru->scsistatus) )
3561 return (-EFAULT);
3562 }
3563 }
3564
3565 return 0;
3566}
3567
3568
3569
3570
3571
3572
3573
3574
3575
3576
3577
3578
3579static int
3580mega_is_bios_enabled(adapter_t *adapter)
3581{
3582 unsigned char raw_mbox[sizeof(struct mbox_out)];
3583 mbox_t *mbox;
3584
3585 mbox = (mbox_t *)raw_mbox;
3586
3587 memset(&mbox->m_out, 0, sizeof(raw_mbox));
3588
3589 memset((void *)adapter->mega_buffer, 0, MEGA_BUFFER_SIZE);
3590
3591 mbox->m_out.xferaddr = (u32)adapter->buf_dma_handle;
3592
3593 raw_mbox[0] = IS_BIOS_ENABLED;
3594 raw_mbox[2] = GET_BIOS;
3595
3596 issue_scb_block(adapter, raw_mbox);
3597
3598 return *(char *)adapter->mega_buffer;
3599}
3600
3601
3602
3603
3604
3605
3606
3607
3608
3609
3610static void
3611mega_enum_raid_scsi(adapter_t *adapter)
3612{
3613 unsigned char raw_mbox[sizeof(struct mbox_out)];
3614 mbox_t *mbox;
3615 int i;
3616
3617 mbox = (mbox_t *)raw_mbox;
3618
3619 memset(&mbox->m_out, 0, sizeof(raw_mbox));
3620
3621
3622
3623
3624 raw_mbox[0] = CHNL_CLASS;
3625 raw_mbox[2] = GET_CHNL_CLASS;
3626
3627 memset((void *)adapter->mega_buffer, 0, MEGA_BUFFER_SIZE);
3628
3629 mbox->m_out.xferaddr = (u32)adapter->buf_dma_handle;
3630
3631
3632
3633
3634
3635 adapter->mega_ch_class = 0xFF;
3636
3637 if(!issue_scb_block(adapter, raw_mbox)) {
3638 adapter->mega_ch_class = *((char *)adapter->mega_buffer);
3639
3640 }
3641
3642 for( i = 0; i < adapter->product_info.nchannels; i++ ) {
3643 if( (adapter->mega_ch_class >> i) & 0x01 ) {
3644 dev_info(&adapter->dev->dev, "channel[%d] is raid\n",
3645 i);
3646 }
3647 else {
3648 dev_info(&adapter->dev->dev, "channel[%d] is scsi\n",
3649 i);
3650 }
3651 }
3652
3653 return;
3654}
3655
3656
3657
3658
3659
3660
3661
3662
3663
3664static void
3665mega_get_boot_drv(adapter_t *adapter)
3666{
3667 struct private_bios_data *prv_bios_data;
3668 unsigned char raw_mbox[sizeof(struct mbox_out)];
3669 mbox_t *mbox;
3670 u16 cksum = 0;
3671 u8 *cksum_p;
3672 u8 boot_pdrv;
3673 int i;
3674
3675 mbox = (mbox_t *)raw_mbox;
3676
3677 memset(&mbox->m_out, 0, sizeof(raw_mbox));
3678
3679 raw_mbox[0] = BIOS_PVT_DATA;
3680 raw_mbox[2] = GET_BIOS_PVT_DATA;
3681
3682 memset((void *)adapter->mega_buffer, 0, MEGA_BUFFER_SIZE);
3683
3684 mbox->m_out.xferaddr = (u32)adapter->buf_dma_handle;
3685
3686 adapter->boot_ldrv_enabled = 0;
3687 adapter->boot_ldrv = 0;
3688
3689 adapter->boot_pdrv_enabled = 0;
3690 adapter->boot_pdrv_ch = 0;
3691 adapter->boot_pdrv_tgt = 0;
3692
3693 if(issue_scb_block(adapter, raw_mbox) == 0) {
3694 prv_bios_data =
3695 (struct private_bios_data *)adapter->mega_buffer;
3696
3697 cksum = 0;
3698 cksum_p = (char *)prv_bios_data;
3699 for (i = 0; i < 14; i++ ) {
3700 cksum += (u16)(*cksum_p++);
3701 }
3702
3703 if (prv_bios_data->cksum == (u16)(0-cksum) ) {
3704
3705
3706
3707
3708
3709 if( prv_bios_data->boot_drv & 0x80 ) {
3710 adapter->boot_pdrv_enabled = 1;
3711 boot_pdrv = prv_bios_data->boot_drv & 0x7F;
3712 adapter->boot_pdrv_ch = boot_pdrv / 16;
3713 adapter->boot_pdrv_tgt = boot_pdrv % 16;
3714 }
3715 else {
3716 adapter->boot_ldrv_enabled = 1;
3717 adapter->boot_ldrv = prv_bios_data->boot_drv;
3718 }
3719 }
3720 }
3721
3722}
3723
3724
3725
3726
3727
3728
3729
3730
3731static int
3732mega_support_random_del(adapter_t *adapter)
3733{
3734 unsigned char raw_mbox[sizeof(struct mbox_out)];
3735 mbox_t *mbox;
3736 int rval;
3737
3738 mbox = (mbox_t *)raw_mbox;
3739
3740 memset(&mbox->m_out, 0, sizeof(raw_mbox));
3741
3742
3743
3744
3745 raw_mbox[0] = FC_DEL_LOGDRV;
3746 raw_mbox[2] = OP_SUP_DEL_LOGDRV;
3747
3748 rval = issue_scb_block(adapter, raw_mbox);
3749
3750 return !rval;
3751}
3752
3753
3754
3755
3756
3757
3758
3759
3760static int
3761mega_support_ext_cdb(adapter_t *adapter)
3762{
3763 unsigned char raw_mbox[sizeof(struct mbox_out)];
3764 mbox_t *mbox;
3765 int rval;
3766
3767 mbox = (mbox_t *)raw_mbox;
3768
3769 memset(&mbox->m_out, 0, sizeof(raw_mbox));
3770
3771
3772
3773 raw_mbox[0] = 0xA4;
3774 raw_mbox[2] = 0x16;
3775
3776 rval = issue_scb_block(adapter, raw_mbox);
3777
3778 return !rval;
3779}
3780
3781
3782
3783
3784
3785
3786
3787
3788
3789
3790static int
3791mega_del_logdrv(adapter_t *adapter, int logdrv)
3792{
3793 unsigned long flags;
3794 scb_t *scb;
3795 int rval;
3796
3797
3798
3799
3800
3801 atomic_set(&adapter->quiescent, 1);
3802
3803
3804
3805
3806
3807 while (atomic_read(&adapter->pend_cmds) > 0 ||
3808 !list_empty(&adapter->pending_list))
3809 msleep(1000);
3810
3811 rval = mega_do_del_logdrv(adapter, logdrv);
3812
3813 spin_lock_irqsave(&adapter->lock, flags);
3814
3815
3816
3817
3818
3819 if (adapter->read_ldidmap) {
3820 struct list_head *pos;
3821 list_for_each(pos, &adapter->pending_list) {
3822 scb = list_entry(pos, scb_t, list);
3823 if (scb->pthru->logdrv < 0x80 )
3824 scb->pthru->logdrv += 0x80;
3825 }
3826 }
3827
3828 atomic_set(&adapter->quiescent, 0);
3829
3830 mega_runpendq(adapter);
3831
3832 spin_unlock_irqrestore(&adapter->lock, flags);
3833
3834 return rval;
3835}
3836
3837
3838static int
3839mega_do_del_logdrv(adapter_t *adapter, int logdrv)
3840{
3841 megacmd_t mc;
3842 int rval;
3843
3844 memset( &mc, 0, sizeof(megacmd_t));
3845
3846 mc.cmd = FC_DEL_LOGDRV;
3847 mc.opcode = OP_DEL_LOGDRV;
3848 mc.subopcode = logdrv;
3849
3850 rval = mega_internal_command(adapter, &mc, NULL);
3851
3852
3853 if(rval) {
3854 dev_warn(&adapter->dev->dev, "Delete LD-%d failed", logdrv);
3855 return rval;
3856 }
3857
3858
3859
3860
3861
3862 adapter->read_ldidmap = 1;
3863
3864 return rval;
3865}
3866
3867
3868
3869
3870
3871
3872
3873
3874
3875static void
3876mega_get_max_sgl(adapter_t *adapter)
3877{
3878 unsigned char raw_mbox[sizeof(struct mbox_out)];
3879 mbox_t *mbox;
3880
3881 mbox = (mbox_t *)raw_mbox;
3882
3883 memset(mbox, 0, sizeof(raw_mbox));
3884
3885 memset((void *)adapter->mega_buffer, 0, MEGA_BUFFER_SIZE);
3886
3887 mbox->m_out.xferaddr = (u32)adapter->buf_dma_handle;
3888
3889 raw_mbox[0] = MAIN_MISC_OPCODE;
3890 raw_mbox[2] = GET_MAX_SG_SUPPORT;
3891
3892
3893 if( issue_scb_block(adapter, raw_mbox) ) {
3894
3895
3896
3897 adapter->sglen = MIN_SGLIST;
3898 }
3899 else {
3900 adapter->sglen = *((char *)adapter->mega_buffer);
3901
3902
3903
3904
3905
3906 if ( adapter->sglen > MAX_SGLIST )
3907 adapter->sglen = MAX_SGLIST;
3908 }
3909
3910 return;
3911}
3912
3913
3914
3915
3916
3917
3918
3919
3920static int
3921mega_support_cluster(adapter_t *adapter)
3922{
3923 unsigned char raw_mbox[sizeof(struct mbox_out)];
3924 mbox_t *mbox;
3925
3926 mbox = (mbox_t *)raw_mbox;
3927
3928 memset(mbox, 0, sizeof(raw_mbox));
3929
3930 memset((void *)adapter->mega_buffer, 0, MEGA_BUFFER_SIZE);
3931
3932 mbox->m_out.xferaddr = (u32)adapter->buf_dma_handle;
3933
3934
3935
3936
3937
3938 raw_mbox[0] = MEGA_GET_TARGET_ID;
3939
3940 if( issue_scb_block(adapter, raw_mbox) == 0 ) {
3941
3942
3943
3944
3945
3946 adapter->this_id = *(u32 *)adapter->mega_buffer;
3947 adapter->host->this_id = adapter->this_id;
3948
3949 return 1;
3950 }
3951
3952 return 0;
3953}
3954
3955#ifdef CONFIG_PROC_FS
3956
3957
3958
3959
3960
3961
3962
3963
3964
3965static int
3966mega_adapinq(adapter_t *adapter, dma_addr_t dma_handle)
3967{
3968 megacmd_t mc;
3969
3970 memset(&mc, 0, sizeof(megacmd_t));
3971
3972 if( adapter->flag & BOARD_40LD ) {
3973 mc.cmd = FC_NEW_CONFIG;
3974 mc.opcode = NC_SUBOP_ENQUIRY3;
3975 mc.subopcode = ENQ3_GET_SOLICITED_FULL;
3976 }
3977 else {
3978 mc.cmd = MEGA_MBOXCMD_ADPEXTINQ;
3979 }
3980
3981 mc.xferaddr = (u32)dma_handle;
3982
3983 if ( mega_internal_command(adapter, &mc, NULL) != 0 ) {
3984 return -1;
3985 }
3986
3987 return 0;
3988}
3989
3990
3991
3992
3993
3994
3995
3996
3997
3998
3999
4000static int
4001mega_internal_dev_inquiry(adapter_t *adapter, u8 ch, u8 tgt,
4002 dma_addr_t buf_dma_handle)
4003{
4004 mega_passthru *pthru;
4005 dma_addr_t pthru_dma_handle;
4006 megacmd_t mc;
4007 int rval;
4008 struct pci_dev *pdev;
4009
4010
4011
4012
4013
4014
4015 if( make_local_pdev(adapter, &pdev) != 0 ) return -1;
4016
4017 pthru = dma_alloc_coherent(&pdev->dev, sizeof(mega_passthru),
4018 &pthru_dma_handle, GFP_KERNEL);
4019
4020 if( pthru == NULL ) {
4021 free_local_pdev(pdev);
4022 return -1;
4023 }
4024
4025 pthru->timeout = 2;
4026 pthru->ars = 1;
4027 pthru->reqsenselen = 14;
4028 pthru->islogical = 0;
4029
4030 pthru->channel = (adapter->flag & BOARD_40LD) ? 0 : ch;
4031
4032 pthru->target = (adapter->flag & BOARD_40LD) ? (ch << 4)|tgt : tgt;
4033
4034 pthru->cdblen = 6;
4035
4036 pthru->cdb[0] = INQUIRY;
4037 pthru->cdb[1] = 0;
4038 pthru->cdb[2] = 0;
4039 pthru->cdb[3] = 0;
4040 pthru->cdb[4] = 255;
4041 pthru->cdb[5] = 0;
4042
4043
4044 pthru->dataxferaddr = (u32)buf_dma_handle;
4045 pthru->dataxferlen = 256;
4046
4047 memset(&mc, 0, sizeof(megacmd_t));
4048
4049 mc.cmd = MEGA_MBOXCMD_PASSTHRU;
4050 mc.xferaddr = (u32)pthru_dma_handle;
4051
4052 rval = mega_internal_command(adapter, &mc, pthru);
4053
4054 dma_free_coherent(&pdev->dev, sizeof(mega_passthru), pthru,
4055 pthru_dma_handle);
4056
4057 free_local_pdev(pdev);
4058
4059 return rval;
4060}
4061#endif
4062
4063
4064
4065
4066
4067
4068
4069
4070
4071
4072
4073
4074
4075static int
4076mega_internal_command(adapter_t *adapter, megacmd_t *mc, mega_passthru *pthru)
4077{
4078 unsigned long flags;
4079 scb_t *scb;
4080 int rval;
4081
4082
4083
4084
4085
4086
4087 mutex_lock(&adapter->int_mtx);
4088
4089 scb = &adapter->int_scb;
4090 memset(scb, 0, sizeof(scb_t));
4091
4092 scb->idx = CMDID_INT_CMDS;
4093 scb->state |= SCB_ACTIVE | SCB_PENDQ;
4094
4095 memcpy(scb->raw_mbox, mc, sizeof(megacmd_t));
4096
4097
4098
4099
4100 if (mc->cmd == MEGA_MBOXCMD_PASSTHRU)
4101 scb->pthru = pthru;
4102
4103 spin_lock_irqsave(&adapter->lock, flags);
4104 list_add_tail(&scb->list, &adapter->pending_list);
4105
4106
4107
4108
4109
4110 if (atomic_read(&adapter->quiescent) == 0)
4111 mega_runpendq(adapter);
4112 spin_unlock_irqrestore(&adapter->lock, flags);
4113
4114 wait_for_completion(&adapter->int_waitq);
4115
4116 mc->status = rval = adapter->int_status;
4117
4118
4119
4120
4121
4122 if (rval && trace_level) {
4123 dev_info(&adapter->dev->dev, "cmd [%x, %x, %x] status:[%x]\n",
4124 mc->cmd, mc->opcode, mc->subopcode, rval);
4125 }
4126
4127 mutex_unlock(&adapter->int_mtx);
4128 return rval;
4129}
4130
4131static struct scsi_host_template megaraid_template = {
4132 .module = THIS_MODULE,
4133 .name = "MegaRAID",
4134 .proc_name = "megaraid_legacy",
4135 .info = megaraid_info,
4136 .queuecommand = megaraid_queue,
4137 .bios_param = megaraid_biosparam,
4138 .max_sectors = MAX_SECTORS_PER_IO,
4139 .can_queue = MAX_COMMANDS,
4140 .this_id = DEFAULT_INITIATOR_ID,
4141 .sg_tablesize = MAX_SGLIST,
4142 .cmd_per_lun = DEF_CMD_PER_LUN,
4143 .eh_abort_handler = megaraid_abort,
4144 .eh_device_reset_handler = megaraid_reset,
4145 .eh_bus_reset_handler = megaraid_reset,
4146 .eh_host_reset_handler = megaraid_reset,
4147 .no_write_same = 1,
4148};
4149
4150static int
4151megaraid_probe_one(struct pci_dev *pdev, const struct pci_device_id *id)
4152{
4153 struct Scsi_Host *host;
4154 adapter_t *adapter;
4155 unsigned long mega_baseport, tbase, flag = 0;
4156 u16 subsysid, subsysvid;
4157 u8 pci_bus, pci_dev_func;
4158 int irq, i, j;
4159 int error = -ENODEV;
4160
4161 if (hba_count >= MAX_CONTROLLERS)
4162 goto out;
4163
4164 if (pci_enable_device(pdev))
4165 goto out;
4166 pci_set_master(pdev);
4167
4168 pci_bus = pdev->bus->number;
4169 pci_dev_func = pdev->devfn;
4170
4171
4172
4173
4174
4175 if (pdev->vendor == PCI_VENDOR_ID_INTEL) {
4176 u16 magic;
4177
4178
4179
4180
4181 if (pdev->subsystem_vendor == PCI_VENDOR_ID_COMPAQ &&
4182 pdev->subsystem_device == 0xC000)
4183 goto out_disable_device;
4184
4185 pci_read_config_word(pdev, PCI_CONF_AMISIG, &magic);
4186 if (magic != HBA_SIGNATURE_471 && magic != HBA_SIGNATURE)
4187 goto out_disable_device;
4188
4189 }
4190
4191
4192
4193
4194
4195 if (id->driver_data & BOARD_64BIT)
4196 flag |= BOARD_64BIT;
4197 else {
4198 u32 magic64;
4199
4200 pci_read_config_dword(pdev, PCI_CONF_AMISIG64, &magic64);
4201 if (magic64 == HBA_SIGNATURE_64BIT)
4202 flag |= BOARD_64BIT;
4203 }
4204
4205 subsysvid = pdev->subsystem_vendor;
4206 subsysid = pdev->subsystem_device;
4207
4208 dev_notice(&pdev->dev, "found 0x%4.04x:0x%4.04x\n",
4209 id->vendor, id->device);
4210
4211
4212 mega_baseport = pci_resource_start(pdev, 0);
4213 irq = pdev->irq;
4214
4215 tbase = mega_baseport;
4216 if (pci_resource_flags(pdev, 0) & IORESOURCE_MEM) {
4217 flag |= BOARD_MEMMAP;
4218
4219 if (!request_mem_region(mega_baseport, 128, "megaraid")) {
4220 dev_warn(&pdev->dev, "mem region busy!\n");
4221 goto out_disable_device;
4222 }
4223
4224 mega_baseport = (unsigned long)ioremap(mega_baseport, 128);
4225 if (!mega_baseport) {
4226 dev_warn(&pdev->dev, "could not map hba memory\n");
4227 goto out_release_region;
4228 }
4229 } else {
4230 flag |= BOARD_IOMAP;
4231 mega_baseport += 0x10;
4232
4233 if (!request_region(mega_baseport, 16, "megaraid"))
4234 goto out_disable_device;
4235 }
4236
4237
4238 host = scsi_host_alloc(&megaraid_template, sizeof(adapter_t));
4239 if (!host)
4240 goto out_iounmap;
4241
4242 adapter = (adapter_t *)host->hostdata;
4243 memset(adapter, 0, sizeof(adapter_t));
4244
4245 dev_notice(&pdev->dev,
4246 "scsi%d:Found MegaRAID controller at 0x%lx, IRQ:%d\n",
4247 host->host_no, mega_baseport, irq);
4248
4249 adapter->base = mega_baseport;
4250 if (flag & BOARD_MEMMAP)
4251 adapter->mmio_base = (void __iomem *) mega_baseport;
4252
4253 INIT_LIST_HEAD(&adapter->free_list);
4254 INIT_LIST_HEAD(&adapter->pending_list);
4255 INIT_LIST_HEAD(&adapter->completed_list);
4256
4257 adapter->flag = flag;
4258 spin_lock_init(&adapter->lock);
4259
4260 host->cmd_per_lun = max_cmd_per_lun;
4261 host->max_sectors = max_sectors_per_io;
4262
4263 adapter->dev = pdev;
4264 adapter->host = host;
4265
4266 adapter->host->irq = irq;
4267
4268 if (flag & BOARD_MEMMAP)
4269 adapter->host->base = tbase;
4270 else {
4271 adapter->host->io_port = tbase;
4272 adapter->host->n_io_port = 16;
4273 }
4274
4275 adapter->host->unique_id = (pci_bus << 8) | pci_dev_func;
4276
4277
4278
4279
4280 adapter->mega_buffer = dma_alloc_coherent(&adapter->dev->dev,
4281 MEGA_BUFFER_SIZE,
4282 &adapter->buf_dma_handle,
4283 GFP_KERNEL);
4284 if (!adapter->mega_buffer) {
4285 dev_warn(&pdev->dev, "out of RAM\n");
4286 goto out_host_put;
4287 }
4288
4289 adapter->scb_list = kmalloc_array(MAX_COMMANDS, sizeof(scb_t),
4290 GFP_KERNEL);
4291 if (!adapter->scb_list) {
4292 dev_warn(&pdev->dev, "out of RAM\n");
4293 goto out_free_cmd_buffer;
4294 }
4295
4296 if (request_irq(irq, (adapter->flag & BOARD_MEMMAP) ?
4297 megaraid_isr_memmapped : megaraid_isr_iomapped,
4298 IRQF_SHARED, "megaraid", adapter)) {
4299 dev_warn(&pdev->dev, "Couldn't register IRQ %d!\n", irq);
4300 goto out_free_scb_list;
4301 }
4302
4303 if (mega_setup_mailbox(adapter))
4304 goto out_free_irq;
4305
4306 if (mega_query_adapter(adapter))
4307 goto out_free_mbox;
4308
4309
4310
4311
4312 if ((subsysid == 0x1111) && (subsysvid == 0x1111)) {
4313
4314
4315
4316 if (!strcmp(adapter->fw_version, "3.00") ||
4317 !strcmp(adapter->fw_version, "3.01")) {
4318
4319 dev_warn(&pdev->dev,
4320 "Your card is a Dell PERC "
4321 "2/SC RAID controller with "
4322 "firmware\nmegaraid: 3.00 or 3.01. "
4323 "This driver is known to have "
4324 "corruption issues\nmegaraid: with "
4325 "those firmware versions on this "
4326 "specific card. In order\nmegaraid: "
4327 "to protect your data, please upgrade "
4328 "your firmware to version\nmegaraid: "
4329 "3.10 or later, available from the "
4330 "Dell Technical Support web\n"
4331 "megaraid: site at\nhttp://support."
4332 "dell.com/us/en/filelib/download/"
4333 "index.asp?fileid=2940\n"
4334 );
4335 }
4336 }
4337
4338
4339
4340
4341
4342
4343
4344 if ((subsysvid == PCI_VENDOR_ID_HP) &&
4345 ((subsysid == 0x60E7) || (subsysid == 0x60E8))) {
4346
4347
4348
4349 if (!strcmp(adapter->fw_version, "H01.07") ||
4350 !strcmp(adapter->fw_version, "H01.08") ||
4351 !strcmp(adapter->fw_version, "H01.09") ) {
4352 dev_warn(&pdev->dev,
4353 "Firmware H.01.07, "
4354 "H.01.08, and H.01.09 on 1M/2M "
4355 "controllers\n"
4356 "do not support 64 bit "
4357 "addressing.\nDISABLING "
4358 "64 bit support.\n");
4359 adapter->flag &= ~BOARD_64BIT;
4360 }
4361 }
4362
4363 if (mega_is_bios_enabled(adapter))
4364 mega_hbas[hba_count].is_bios_enabled = 1;
4365 mega_hbas[hba_count].hostdata_addr = adapter;
4366
4367
4368
4369
4370
4371 mega_enum_raid_scsi(adapter);
4372
4373
4374
4375
4376
4377
4378
4379
4380
4381 mega_get_boot_drv(adapter);
4382
4383 if (adapter->boot_pdrv_enabled) {
4384 j = adapter->product_info.nchannels;
4385 for( i = 0; i < j; i++ )
4386 adapter->logdrv_chan[i] = 0;
4387 for( i = j; i < NVIRT_CHAN + j; i++ )
4388 adapter->logdrv_chan[i] = 1;
4389 } else {
4390 for (i = 0; i < NVIRT_CHAN; i++)
4391 adapter->logdrv_chan[i] = 1;
4392 for (i = NVIRT_CHAN; i < MAX_CHANNELS+NVIRT_CHAN; i++)
4393 adapter->logdrv_chan[i] = 0;
4394 adapter->mega_ch_class <<= NVIRT_CHAN;
4395 }
4396
4397
4398
4399
4400
4401 adapter->read_ldidmap = 0;
4402
4403 adapter->support_random_del = mega_support_random_del(adapter);
4404
4405
4406 if (mega_init_scb(adapter))
4407 goto out_free_mbox;
4408
4409
4410
4411
4412 atomic_set(&adapter->pend_cmds, 0);
4413
4414
4415
4416
4417 atomic_set(&adapter->quiescent, 0);
4418
4419 hba_soft_state[hba_count] = adapter;
4420
4421
4422
4423
4424
4425
4426 i = hba_count;
4427
4428 mcontroller[i].base = mega_baseport;
4429 mcontroller[i].irq = irq;
4430 mcontroller[i].numldrv = adapter->numldrv;
4431 mcontroller[i].pcibus = pci_bus;
4432 mcontroller[i].pcidev = id->device;
4433 mcontroller[i].pcifun = PCI_FUNC (pci_dev_func);
4434 mcontroller[i].pciid = -1;
4435 mcontroller[i].pcivendor = id->vendor;
4436 mcontroller[i].pcislot = PCI_SLOT(pci_dev_func);
4437 mcontroller[i].uid = (pci_bus << 8) | pci_dev_func;
4438
4439
4440
4441 if ((adapter->flag & BOARD_64BIT) && (sizeof(dma_addr_t) == 8)) {
4442 dma_set_mask(&pdev->dev, DMA_BIT_MASK(64));
4443 adapter->has_64bit_addr = 1;
4444 } else {
4445 dma_set_mask(&pdev->dev, DMA_BIT_MASK(32));
4446 adapter->has_64bit_addr = 0;
4447 }
4448
4449 mutex_init(&adapter->int_mtx);
4450 init_completion(&adapter->int_waitq);
4451
4452 adapter->this_id = DEFAULT_INITIATOR_ID;
4453 adapter->host->this_id = DEFAULT_INITIATOR_ID;
4454
4455#if MEGA_HAVE_CLUSTERING
4456
4457
4458
4459
4460
4461
4462
4463 adapter->has_cluster = mega_support_cluster(adapter);
4464 if (adapter->has_cluster) {
4465 dev_notice(&pdev->dev,
4466 "Cluster driver, initiator id:%d\n",
4467 adapter->this_id);
4468 }
4469#endif
4470
4471 pci_set_drvdata(pdev, host);
4472
4473 mega_create_proc_entry(hba_count, mega_proc_dir_entry);
4474
4475 error = scsi_add_host(host, &pdev->dev);
4476 if (error)
4477 goto out_free_mbox;
4478
4479 scsi_scan_host(host);
4480 hba_count++;
4481 return 0;
4482
4483 out_free_mbox:
4484 dma_free_coherent(&adapter->dev->dev, sizeof(mbox64_t),
4485 adapter->una_mbox64, adapter->una_mbox64_dma);
4486 out_free_irq:
4487 free_irq(adapter->host->irq, adapter);
4488 out_free_scb_list:
4489 kfree(adapter->scb_list);
4490 out_free_cmd_buffer:
4491 dma_free_coherent(&adapter->dev->dev, MEGA_BUFFER_SIZE,
4492 adapter->mega_buffer, adapter->buf_dma_handle);
4493 out_host_put:
4494 scsi_host_put(host);
4495 out_iounmap:
4496 if (flag & BOARD_MEMMAP)
4497 iounmap((void *)mega_baseport);
4498 out_release_region:
4499 if (flag & BOARD_MEMMAP)
4500 release_mem_region(tbase, 128);
4501 else
4502 release_region(mega_baseport, 16);
4503 out_disable_device:
4504 pci_disable_device(pdev);
4505 out:
4506 return error;
4507}
4508
4509static void
4510__megaraid_shutdown(adapter_t *adapter)
4511{
4512 u_char raw_mbox[sizeof(struct mbox_out)];
4513 mbox_t *mbox = (mbox_t *)raw_mbox;
4514 int i;
4515
4516
4517 memset(&mbox->m_out, 0, sizeof(raw_mbox));
4518 raw_mbox[0] = FLUSH_ADAPTER;
4519
4520 free_irq(adapter->host->irq, adapter);
4521
4522
4523 issue_scb_block(adapter, raw_mbox);
4524
4525
4526 memset(&mbox->m_out, 0, sizeof(raw_mbox));
4527 raw_mbox[0] = FLUSH_SYSTEM;
4528
4529
4530 issue_scb_block(adapter, raw_mbox);
4531
4532 if (atomic_read(&adapter->pend_cmds) > 0)
4533 dev_warn(&adapter->dev->dev, "pending commands!!\n");
4534
4535
4536
4537
4538
4539 for (i = 0; i <= 10; i++)
4540 mdelay(1000);
4541}
4542
4543static void
4544megaraid_remove_one(struct pci_dev *pdev)
4545{
4546 struct Scsi_Host *host = pci_get_drvdata(pdev);
4547 adapter_t *adapter = (adapter_t *)host->hostdata;
4548 char buf[12] = { 0 };
4549
4550 scsi_remove_host(host);
4551
4552 __megaraid_shutdown(adapter);
4553
4554
4555 if (adapter->flag & BOARD_MEMMAP) {
4556 iounmap((void *)adapter->base);
4557 release_mem_region(adapter->host->base, 128);
4558 } else
4559 release_region(adapter->base, 16);
4560
4561 mega_free_sgl(adapter);
4562
4563 sprintf(buf, "hba%d", adapter->host->host_no);
4564 remove_proc_subtree(buf, mega_proc_dir_entry);
4565
4566 dma_free_coherent(&adapter->dev->dev, MEGA_BUFFER_SIZE,
4567 adapter->mega_buffer, adapter->buf_dma_handle);
4568 kfree(adapter->scb_list);
4569 dma_free_coherent(&adapter->dev->dev, sizeof(mbox64_t),
4570 adapter->una_mbox64, adapter->una_mbox64_dma);
4571
4572 scsi_host_put(host);
4573 pci_disable_device(pdev);
4574
4575 hba_count--;
4576}
4577
4578static void
4579megaraid_shutdown(struct pci_dev *pdev)
4580{
4581 struct Scsi_Host *host = pci_get_drvdata(pdev);
4582 adapter_t *adapter = (adapter_t *)host->hostdata;
4583
4584 __megaraid_shutdown(adapter);
4585}
4586
4587static struct pci_device_id megaraid_pci_tbl[] = {
4588 {PCI_VENDOR_ID_AMI, PCI_DEVICE_ID_AMI_MEGARAID,
4589 PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
4590 {PCI_VENDOR_ID_AMI, PCI_DEVICE_ID_AMI_MEGARAID2,
4591 PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
4592 {PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_AMI_MEGARAID3,
4593 PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
4594 {0,}
4595};
4596MODULE_DEVICE_TABLE(pci, megaraid_pci_tbl);
4597
4598static struct pci_driver megaraid_pci_driver = {
4599 .name = "megaraid_legacy",
4600 .id_table = megaraid_pci_tbl,
4601 .probe = megaraid_probe_one,
4602 .remove = megaraid_remove_one,
4603 .shutdown = megaraid_shutdown,
4604};
4605
4606static int __init megaraid_init(void)
4607{
4608 int error;
4609
4610 if ((max_cmd_per_lun <= 0) || (max_cmd_per_lun > MAX_CMD_PER_LUN))
4611 max_cmd_per_lun = MAX_CMD_PER_LUN;
4612 if (max_mbox_busy_wait > MBOX_BUSY_WAIT)
4613 max_mbox_busy_wait = MBOX_BUSY_WAIT;
4614
4615#ifdef CONFIG_PROC_FS
4616 mega_proc_dir_entry = proc_mkdir("megaraid", NULL);
4617 if (!mega_proc_dir_entry) {
4618 printk(KERN_WARNING
4619 "megaraid: failed to create megaraid root\n");
4620 }
4621#endif
4622 error = pci_register_driver(&megaraid_pci_driver);
4623 if (error) {
4624#ifdef CONFIG_PROC_FS
4625 remove_proc_entry("megaraid", NULL);
4626#endif
4627 return error;
4628 }
4629
4630
4631
4632
4633
4634
4635
4636 major = register_chrdev(0, "megadev_legacy", &megadev_fops);
4637 if (!major) {
4638 printk(KERN_WARNING
4639 "megaraid: failed to register char device\n");
4640 }
4641
4642 return 0;
4643}
4644
4645static void __exit megaraid_exit(void)
4646{
4647
4648
4649
4650 unregister_chrdev(major, "megadev_legacy");
4651
4652 pci_unregister_driver(&megaraid_pci_driver);
4653
4654#ifdef CONFIG_PROC_FS
4655 remove_proc_entry("megaraid", NULL);
4656#endif
4657}
4658
4659module_init(megaraid_init);
4660module_exit(megaraid_exit);
4661
4662
4663