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34#include <linux/mm.h>
35#include <linux/fs.h>
36#include <linux/blkdev.h>
37#include <linux/uaccess.h>
38#include <asm/io.h>
39#include <linux/completion.h>
40#include <linux/delay.h>
41#include <linux/proc_fs.h>
42#include <linux/seq_file.h>
43#include <linux/reboot.h>
44#include <linux/module.h>
45#include <linux/list.h>
46#include <linux/interrupt.h>
47#include <linux/pci.h>
48#include <linux/init.h>
49#include <linux/dma-mapping.h>
50#include <linux/mutex.h>
51#include <linux/slab.h>
52#include <scsi/scsicam.h>
53
54#include "scsi.h"
55#include <scsi/scsi_host.h>
56
57#include "megaraid.h"
58
59#define MEGARAID_MODULE_VERSION "2.00.4"
60
61MODULE_AUTHOR ("sju@lsil.com");
62MODULE_DESCRIPTION ("LSI Logic MegaRAID legacy driver");
63MODULE_LICENSE ("GPL");
64MODULE_VERSION(MEGARAID_MODULE_VERSION);
65
66static DEFINE_MUTEX(megadev_mutex);
67static unsigned int max_cmd_per_lun = DEF_CMD_PER_LUN;
68module_param(max_cmd_per_lun, uint, 0);
69MODULE_PARM_DESC(max_cmd_per_lun, "Maximum number of commands which can be issued to a single LUN (default=DEF_CMD_PER_LUN=63)");
70
71static unsigned short int max_sectors_per_io = MAX_SECTORS_PER_IO;
72module_param(max_sectors_per_io, ushort, 0);
73MODULE_PARM_DESC(max_sectors_per_io, "Maximum number of sectors per I/O request (default=MAX_SECTORS_PER_IO=128)");
74
75
76static unsigned short int max_mbox_busy_wait = MBOX_BUSY_WAIT;
77module_param(max_mbox_busy_wait, ushort, 0);
78MODULE_PARM_DESC(max_mbox_busy_wait, "Maximum wait for mailbox in microseconds if busy (default=MBOX_BUSY_WAIT=10)");
79
80#define RDINDOOR(adapter) readl((adapter)->mmio_base + 0x20)
81#define RDOUTDOOR(adapter) readl((adapter)->mmio_base + 0x2C)
82#define WRINDOOR(adapter,value) writel(value, (adapter)->mmio_base + 0x20)
83#define WROUTDOOR(adapter,value) writel(value, (adapter)->mmio_base + 0x2C)
84
85
86
87
88
89static int hba_count;
90static adapter_t *hba_soft_state[MAX_CONTROLLERS];
91static struct proc_dir_entry *mega_proc_dir_entry;
92
93
94static struct mega_hbas mega_hbas[MAX_CONTROLLERS];
95
96static long
97megadev_unlocked_ioctl(struct file *filep, unsigned int cmd, unsigned long arg);
98
99
100
101
102static const struct file_operations megadev_fops = {
103 .owner = THIS_MODULE,
104 .unlocked_ioctl = megadev_unlocked_ioctl,
105 .open = megadev_open,
106 .llseek = noop_llseek,
107};
108
109
110
111
112
113
114static struct mcontroller mcontroller[MAX_CONTROLLERS];
115
116
117static u32 driver_ver = 0x02000000;
118
119
120static int major;
121
122#define IS_RAID_CH(hba, ch) (((hba)->mega_ch_class >> (ch)) & 0x01)
123
124
125
126
127
128static int trace_level;
129
130
131
132
133
134
135
136static int
137mega_setup_mailbox(adapter_t *adapter)
138{
139 unsigned long align;
140
141 adapter->una_mbox64 = pci_alloc_consistent(adapter->dev,
142 sizeof(mbox64_t), &adapter->una_mbox64_dma);
143
144 if( !adapter->una_mbox64 ) return -1;
145
146 adapter->mbox = &adapter->una_mbox64->mbox;
147
148 adapter->mbox = (mbox_t *)((((unsigned long) adapter->mbox) + 15) &
149 (~0UL ^ 0xFUL));
150
151 adapter->mbox64 = (mbox64_t *)(((unsigned long)adapter->mbox) - 8);
152
153 align = ((void *)adapter->mbox) - ((void *)&adapter->una_mbox64->mbox);
154
155 adapter->mbox_dma = adapter->una_mbox64_dma + 8 + align;
156
157
158
159
160 if( adapter->flag & BOARD_IOMAP ) {
161
162 outb(adapter->mbox_dma & 0xFF,
163 adapter->host->io_port + MBOX_PORT0);
164
165 outb((adapter->mbox_dma >> 8) & 0xFF,
166 adapter->host->io_port + MBOX_PORT1);
167
168 outb((adapter->mbox_dma >> 16) & 0xFF,
169 adapter->host->io_port + MBOX_PORT2);
170
171 outb((adapter->mbox_dma >> 24) & 0xFF,
172 adapter->host->io_port + MBOX_PORT3);
173
174 outb(ENABLE_MBOX_BYTE,
175 adapter->host->io_port + ENABLE_MBOX_REGION);
176
177 irq_ack(adapter);
178
179 irq_enable(adapter);
180 }
181
182 return 0;
183}
184
185
186
187
188
189
190
191
192
193static int
194mega_query_adapter(adapter_t *adapter)
195{
196 dma_addr_t prod_info_dma_handle;
197 mega_inquiry3 *inquiry3;
198 u8 raw_mbox[sizeof(struct mbox_out)];
199 mbox_t *mbox;
200 int retval;
201
202
203
204 mbox = (mbox_t *)raw_mbox;
205
206 memset((void *)adapter->mega_buffer, 0, MEGA_BUFFER_SIZE);
207 memset(&mbox->m_out, 0, sizeof(raw_mbox));
208
209
210
211
212
213
214 mbox->m_out.xferaddr = (u32)adapter->buf_dma_handle;
215
216 inquiry3 = (mega_inquiry3 *)adapter->mega_buffer;
217
218 raw_mbox[0] = FC_NEW_CONFIG;
219 raw_mbox[2] = NC_SUBOP_ENQUIRY3;
220 raw_mbox[3] = ENQ3_GET_SOLICITED_FULL;
221
222
223 if ((retval = issue_scb_block(adapter, raw_mbox))) {
224
225
226 mraid_ext_inquiry *ext_inq;
227 mraid_inquiry *inq;
228 dma_addr_t dma_handle;
229
230 ext_inq = pci_alloc_consistent(adapter->dev,
231 sizeof(mraid_ext_inquiry), &dma_handle);
232
233 if( ext_inq == NULL ) return -1;
234
235 inq = &ext_inq->raid_inq;
236
237 mbox->m_out.xferaddr = (u32)dma_handle;
238
239
240 mbox->m_out.cmd = MEGA_MBOXCMD_ADPEXTINQ;
241
242 issue_scb_block(adapter, raw_mbox);
243
244
245
246
247
248 mega_8_to_40ld(inq, inquiry3,
249 (mega_product_info *)&adapter->product_info);
250
251 pci_free_consistent(adapter->dev, sizeof(mraid_ext_inquiry),
252 ext_inq, dma_handle);
253
254 } else {
255 adapter->flag |= BOARD_40LD;
256
257
258
259
260
261 prod_info_dma_handle = pci_map_single(adapter->dev, (void *)
262 &adapter->product_info,
263 sizeof(mega_product_info), PCI_DMA_FROMDEVICE);
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 pci_unmap_single(adapter->dev, prod_info_dma_handle,
276 sizeof(mega_product_info), PCI_DMA_FROMDEVICE);
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_ext_passthru *epthru;
526 mega_passthru *pthru;
527 scb_t *scb;
528 mbox_t *mbox;
529 u32 seg;
530 char islogical;
531 int max_ldrv_num;
532 int channel = 0;
533 int target = 0;
534 int ldrv_num = 0;
535
536
537
538
539 islogical = adapter->logdrv_chan[cmd->device->channel];
540
541
542
543
544
545
546
547
548 if( adapter->boot_pdrv_enabled ) {
549 if( islogical ) {
550
551 channel = cmd->device->channel -
552 adapter->product_info.nchannels;
553 }
554 else {
555
556 channel = cmd->device->channel;
557 target = cmd->device->id;
558
559
560
561
562
563
564 if( target == 0 ) {
565 target = adapter->boot_pdrv_tgt;
566 }
567 else if( target == adapter->boot_pdrv_tgt ) {
568 target = 0;
569 }
570 }
571 }
572 else {
573 if( islogical ) {
574
575 channel = cmd->device->channel;
576 }
577 else {
578
579 channel = cmd->device->channel - NVIRT_CHAN;
580 target = cmd->device->id;
581 }
582 }
583
584
585 if(islogical) {
586
587
588 if (cmd->device->lun) {
589 cmd->result = (DID_BAD_TARGET << 16);
590 cmd->scsi_done(cmd);
591 return NULL;
592 }
593
594 ldrv_num = mega_get_ldrv_num(adapter, cmd, channel);
595
596
597 max_ldrv_num = (adapter->flag & BOARD_40LD) ?
598 MAX_LOGICAL_DRIVES_40LD : MAX_LOGICAL_DRIVES_8LD;
599
600
601
602
603
604 if(adapter->read_ldidmap)
605 max_ldrv_num += 0x80;
606
607 if(ldrv_num > max_ldrv_num ) {
608 cmd->result = (DID_BAD_TARGET << 16);
609 cmd->scsi_done(cmd);
610 return NULL;
611 }
612
613 }
614 else {
615 if( cmd->device->lun > 7) {
616
617
618
619
620 cmd->result = (DID_BAD_TARGET << 16);
621 cmd->scsi_done(cmd);
622 return NULL;
623 }
624 }
625
626
627
628
629
630
631 if(islogical) {
632 switch (cmd->cmnd[0]) {
633 case TEST_UNIT_READY:
634#if MEGA_HAVE_CLUSTERING
635
636
637
638
639 if( !adapter->has_cluster ) {
640 cmd->result = (DID_OK << 16);
641 cmd->scsi_done(cmd);
642 return NULL;
643 }
644
645 if(!(scb = mega_allocate_scb(adapter, cmd))) {
646 *busy = 1;
647 return NULL;
648 }
649
650 scb->raw_mbox[0] = MEGA_CLUSTER_CMD;
651 scb->raw_mbox[2] = MEGA_RESERVATION_STATUS;
652 scb->raw_mbox[3] = ldrv_num;
653
654 scb->dma_direction = PCI_DMA_NONE;
655
656 return scb;
657#else
658 cmd->result = (DID_OK << 16);
659 cmd->scsi_done(cmd);
660 return NULL;
661#endif
662
663 case MODE_SENSE: {
664 char *buf;
665 struct scatterlist *sg;
666
667 sg = scsi_sglist(cmd);
668 buf = kmap_atomic(sg_page(sg)) + sg->offset;
669
670 memset(buf, 0, cmd->cmnd[4]);
671 kunmap_atomic(buf - sg->offset);
672
673 cmd->result = (DID_OK << 16);
674 cmd->scsi_done(cmd);
675 return NULL;
676 }
677
678 case READ_CAPACITY:
679 case INQUIRY:
680
681 if(!(adapter->flag & (1L << cmd->device->channel))) {
682
683 dev_notice(&adapter->dev->dev,
684 "scsi%d: scanning scsi channel %d "
685 "for logical drives\n",
686 adapter->host->host_no,
687 cmd->device->channel);
688
689 adapter->flag |= (1L << cmd->device->channel);
690 }
691
692
693 if(!(scb = mega_allocate_scb(adapter, cmd))) {
694 *busy = 1;
695 return NULL;
696 }
697 pthru = scb->pthru;
698
699 mbox = (mbox_t *)scb->raw_mbox;
700 memset(mbox, 0, sizeof(scb->raw_mbox));
701 memset(pthru, 0, sizeof(mega_passthru));
702
703 pthru->timeout = 0;
704 pthru->ars = 1;
705 pthru->reqsenselen = 14;
706 pthru->islogical = 1;
707 pthru->logdrv = ldrv_num;
708 pthru->cdblen = cmd->cmd_len;
709 memcpy(pthru->cdb, cmd->cmnd, cmd->cmd_len);
710
711 if( adapter->has_64bit_addr ) {
712 mbox->m_out.cmd = MEGA_MBOXCMD_PASSTHRU64;
713 }
714 else {
715 mbox->m_out.cmd = MEGA_MBOXCMD_PASSTHRU;
716 }
717
718 scb->dma_direction = PCI_DMA_FROMDEVICE;
719
720 pthru->numsgelements = mega_build_sglist(adapter, scb,
721 &pthru->dataxferaddr, &pthru->dataxferlen);
722
723 mbox->m_out.xferaddr = scb->pthru_dma_addr;
724
725 return scb;
726
727 case READ_6:
728 case WRITE_6:
729 case READ_10:
730 case WRITE_10:
731 case READ_12:
732 case WRITE_12:
733
734
735 if(!(scb = mega_allocate_scb(adapter, cmd))) {
736 *busy = 1;
737 return NULL;
738 }
739 mbox = (mbox_t *)scb->raw_mbox;
740
741 memset(mbox, 0, sizeof(scb->raw_mbox));
742 mbox->m_out.logdrv = ldrv_num;
743
744
745
746
747
748 if( adapter->has_64bit_addr ) {
749 mbox->m_out.cmd = (*cmd->cmnd & 0x02) ?
750 MEGA_MBOXCMD_LWRITE64:
751 MEGA_MBOXCMD_LREAD64 ;
752 }
753 else {
754 mbox->m_out.cmd = (*cmd->cmnd & 0x02) ?
755 MEGA_MBOXCMD_LWRITE:
756 MEGA_MBOXCMD_LREAD ;
757 }
758
759
760
761
762 if( cmd->cmd_len == 6 ) {
763 mbox->m_out.numsectors = (u32) cmd->cmnd[4];
764 mbox->m_out.lba =
765 ((u32)cmd->cmnd[1] << 16) |
766 ((u32)cmd->cmnd[2] << 8) |
767 (u32)cmd->cmnd[3];
768
769 mbox->m_out.lba &= 0x1FFFFF;
770
771#if MEGA_HAVE_STATS
772
773
774
775
776
777 if (*cmd->cmnd == READ_6) {
778 adapter->nreads[ldrv_num%0x80]++;
779 adapter->nreadblocks[ldrv_num%0x80] +=
780 mbox->m_out.numsectors;
781 } else {
782 adapter->nwrites[ldrv_num%0x80]++;
783 adapter->nwriteblocks[ldrv_num%0x80] +=
784 mbox->m_out.numsectors;
785 }
786#endif
787 }
788
789
790
791
792 if( cmd->cmd_len == 10 ) {
793 mbox->m_out.numsectors =
794 (u32)cmd->cmnd[8] |
795 ((u32)cmd->cmnd[7] << 8);
796 mbox->m_out.lba =
797 ((u32)cmd->cmnd[2] << 24) |
798 ((u32)cmd->cmnd[3] << 16) |
799 ((u32)cmd->cmnd[4] << 8) |
800 (u32)cmd->cmnd[5];
801
802#if MEGA_HAVE_STATS
803 if (*cmd->cmnd == READ_10) {
804 adapter->nreads[ldrv_num%0x80]++;
805 adapter->nreadblocks[ldrv_num%0x80] +=
806 mbox->m_out.numsectors;
807 } else {
808 adapter->nwrites[ldrv_num%0x80]++;
809 adapter->nwriteblocks[ldrv_num%0x80] +=
810 mbox->m_out.numsectors;
811 }
812#endif
813 }
814
815
816
817
818 if( cmd->cmd_len == 12 ) {
819 mbox->m_out.lba =
820 ((u32)cmd->cmnd[2] << 24) |
821 ((u32)cmd->cmnd[3] << 16) |
822 ((u32)cmd->cmnd[4] << 8) |
823 (u32)cmd->cmnd[5];
824
825 mbox->m_out.numsectors =
826 ((u32)cmd->cmnd[6] << 24) |
827 ((u32)cmd->cmnd[7] << 16) |
828 ((u32)cmd->cmnd[8] << 8) |
829 (u32)cmd->cmnd[9];
830
831#if MEGA_HAVE_STATS
832 if (*cmd->cmnd == READ_12) {
833 adapter->nreads[ldrv_num%0x80]++;
834 adapter->nreadblocks[ldrv_num%0x80] +=
835 mbox->m_out.numsectors;
836 } else {
837 adapter->nwrites[ldrv_num%0x80]++;
838 adapter->nwriteblocks[ldrv_num%0x80] +=
839 mbox->m_out.numsectors;
840 }
841#endif
842 }
843
844
845
846
847 if( (*cmd->cmnd & 0x0F) == 0x08 ) {
848 scb->dma_direction = PCI_DMA_FROMDEVICE;
849 }
850 else {
851 scb->dma_direction = PCI_DMA_TODEVICE;
852 }
853
854
855 mbox->m_out.numsgelements = mega_build_sglist(adapter, scb,
856 (u32 *)&mbox->m_out.xferaddr, &seg);
857
858 return scb;
859
860#if MEGA_HAVE_CLUSTERING
861 case RESERVE:
862 case RELEASE:
863
864
865
866
867 if( ! adapter->has_cluster ) {
868
869 cmd->result = (DID_BAD_TARGET << 16);
870 cmd->scsi_done(cmd);
871 return NULL;
872 }
873
874
875 if(!(scb = mega_allocate_scb(adapter, cmd))) {
876 *busy = 1;
877 return NULL;
878 }
879
880 scb->raw_mbox[0] = MEGA_CLUSTER_CMD;
881 scb->raw_mbox[2] = ( *cmd->cmnd == RESERVE ) ?
882 MEGA_RESERVE_LD : MEGA_RELEASE_LD;
883
884 scb->raw_mbox[3] = ldrv_num;
885
886 scb->dma_direction = PCI_DMA_NONE;
887
888 return scb;
889#endif
890
891 default:
892 cmd->result = (DID_BAD_TARGET << 16);
893 cmd->scsi_done(cmd);
894 return NULL;
895 }
896 }
897
898
899
900
901 else {
902
903 if(!(scb = mega_allocate_scb(adapter, cmd))) {
904 *busy = 1;
905 return NULL;
906 }
907
908 mbox = (mbox_t *)scb->raw_mbox;
909 memset(mbox, 0, sizeof(scb->raw_mbox));
910
911 if( adapter->support_ext_cdb ) {
912
913 epthru = mega_prepare_extpassthru(adapter, scb, cmd,
914 channel, target);
915
916 mbox->m_out.cmd = MEGA_MBOXCMD_EXTPTHRU;
917
918 mbox->m_out.xferaddr = scb->epthru_dma_addr;
919
920 }
921 else {
922
923 pthru = mega_prepare_passthru(adapter, scb, cmd,
924 channel, target);
925
926
927 if( adapter->has_64bit_addr ) {
928 mbox->m_out.cmd = MEGA_MBOXCMD_PASSTHRU64;
929 }
930 else {
931 mbox->m_out.cmd = MEGA_MBOXCMD_PASSTHRU;
932 }
933
934 mbox->m_out.xferaddr = scb->pthru_dma_addr;
935
936 }
937 return scb;
938 }
939 return NULL;
940}
941
942
943
944
945
946
947
948
949
950
951
952
953static mega_passthru *
954mega_prepare_passthru(adapter_t *adapter, scb_t *scb, struct scsi_cmnd *cmd,
955 int channel, int target)
956{
957 mega_passthru *pthru;
958
959 pthru = scb->pthru;
960 memset(pthru, 0, sizeof (mega_passthru));
961
962
963 pthru->timeout = 2;
964
965 pthru->ars = 1;
966 pthru->reqsenselen = 14;
967 pthru->islogical = 0;
968
969 pthru->channel = (adapter->flag & BOARD_40LD) ? 0 : channel;
970
971 pthru->target = (adapter->flag & BOARD_40LD) ?
972 (channel << 4) | target : target;
973
974 pthru->cdblen = cmd->cmd_len;
975 pthru->logdrv = cmd->device->lun;
976
977 memcpy(pthru->cdb, cmd->cmnd, cmd->cmd_len);
978
979
980 scb->dma_direction = PCI_DMA_BIDIRECTIONAL;
981
982
983 switch (cmd->cmnd[0]) {
984 case INQUIRY:
985 case READ_CAPACITY:
986 if(!(adapter->flag & (1L << cmd->device->channel))) {
987
988 dev_notice(&adapter->dev->dev,
989 "scsi%d: scanning scsi channel %d [P%d] "
990 "for physical devices\n",
991 adapter->host->host_no,
992 cmd->device->channel, channel);
993
994 adapter->flag |= (1L << cmd->device->channel);
995 }
996
997 default:
998 pthru->numsgelements = mega_build_sglist(adapter, scb,
999 &pthru->dataxferaddr, &pthru->dataxferlen);
1000 break;
1001 }
1002 return pthru;
1003}
1004
1005
1006
1007
1008
1009
1010
1011
1012
1013
1014
1015
1016
1017static mega_ext_passthru *
1018mega_prepare_extpassthru(adapter_t *adapter, scb_t *scb,
1019 struct scsi_cmnd *cmd,
1020 int channel, int target)
1021{
1022 mega_ext_passthru *epthru;
1023
1024 epthru = scb->epthru;
1025 memset(epthru, 0, sizeof(mega_ext_passthru));
1026
1027
1028 epthru->timeout = 2;
1029
1030 epthru->ars = 1;
1031 epthru->reqsenselen = 14;
1032 epthru->islogical = 0;
1033
1034 epthru->channel = (adapter->flag & BOARD_40LD) ? 0 : channel;
1035 epthru->target = (adapter->flag & BOARD_40LD) ?
1036 (channel << 4) | target : target;
1037
1038 epthru->cdblen = cmd->cmd_len;
1039 epthru->logdrv = cmd->device->lun;
1040
1041 memcpy(epthru->cdb, cmd->cmnd, cmd->cmd_len);
1042
1043
1044 scb->dma_direction = PCI_DMA_BIDIRECTIONAL;
1045
1046 switch(cmd->cmnd[0]) {
1047 case INQUIRY:
1048 case READ_CAPACITY:
1049 if(!(adapter->flag & (1L << cmd->device->channel))) {
1050
1051 dev_notice(&adapter->dev->dev,
1052 "scsi%d: scanning scsi channel %d [P%d] "
1053 "for physical devices\n",
1054 adapter->host->host_no,
1055 cmd->device->channel, channel);
1056
1057 adapter->flag |= (1L << cmd->device->channel);
1058 }
1059
1060 default:
1061 epthru->numsgelements = mega_build_sglist(adapter, scb,
1062 &epthru->dataxferaddr, &epthru->dataxferlen);
1063 break;
1064 }
1065
1066 return epthru;
1067}
1068
1069static void
1070__mega_runpendq(adapter_t *adapter)
1071{
1072 scb_t *scb;
1073 struct list_head *pos, *next;
1074
1075
1076 list_for_each_safe(pos, next, &adapter->pending_list) {
1077
1078 scb = list_entry(pos, scb_t, list);
1079
1080 if( !(scb->state & SCB_ISSUED) ) {
1081
1082 if( issue_scb(adapter, scb) != 0 )
1083 return;
1084 }
1085 }
1086
1087 return;
1088}
1089
1090
1091
1092
1093
1094
1095
1096
1097
1098
1099
1100static int
1101issue_scb(adapter_t *adapter, scb_t *scb)
1102{
1103 volatile mbox64_t *mbox64 = adapter->mbox64;
1104 volatile mbox_t *mbox = adapter->mbox;
1105 unsigned int i = 0;
1106
1107 if(unlikely(mbox->m_in.busy)) {
1108 do {
1109 udelay(1);
1110 i++;
1111 } while( mbox->m_in.busy && (i < max_mbox_busy_wait) );
1112
1113 if(mbox->m_in.busy) return -1;
1114 }
1115
1116
1117 memcpy((char *)&mbox->m_out, (char *)scb->raw_mbox,
1118 sizeof(struct mbox_out));
1119
1120 mbox->m_out.cmdid = scb->idx;
1121 mbox->m_in.busy = 1;
1122
1123
1124
1125
1126
1127 atomic_inc(&adapter->pend_cmds);
1128
1129 switch (mbox->m_out.cmd) {
1130 case MEGA_MBOXCMD_LREAD64:
1131 case MEGA_MBOXCMD_LWRITE64:
1132 case MEGA_MBOXCMD_PASSTHRU64:
1133 case MEGA_MBOXCMD_EXTPTHRU:
1134 mbox64->xfer_segment_lo = mbox->m_out.xferaddr;
1135 mbox64->xfer_segment_hi = 0;
1136 mbox->m_out.xferaddr = 0xFFFFFFFF;
1137 break;
1138 default:
1139 mbox64->xfer_segment_lo = 0;
1140 mbox64->xfer_segment_hi = 0;
1141 }
1142
1143
1144
1145
1146 scb->state |= SCB_ISSUED;
1147
1148 if( likely(adapter->flag & BOARD_MEMMAP) ) {
1149 mbox->m_in.poll = 0;
1150 mbox->m_in.ack = 0;
1151 WRINDOOR(adapter, adapter->mbox_dma | 0x1);
1152 }
1153 else {
1154 irq_enable(adapter);
1155 issue_command(adapter);
1156 }
1157
1158 return 0;
1159}
1160
1161
1162
1163
1164static inline int
1165mega_busywait_mbox (adapter_t *adapter)
1166{
1167 if (adapter->mbox->m_in.busy)
1168 return __mega_busywait_mbox(adapter);
1169 return 0;
1170}
1171
1172
1173
1174
1175
1176
1177
1178
1179static int
1180issue_scb_block(adapter_t *adapter, u_char *raw_mbox)
1181{
1182 volatile mbox64_t *mbox64 = adapter->mbox64;
1183 volatile mbox_t *mbox = adapter->mbox;
1184 u8 byte;
1185
1186
1187 if(mega_busywait_mbox (adapter))
1188 goto bug_blocked_mailbox;
1189
1190
1191 memcpy((char *) mbox, raw_mbox, sizeof(struct mbox_out));
1192 mbox->m_out.cmdid = 0xFE;
1193 mbox->m_in.busy = 1;
1194
1195 switch (raw_mbox[0]) {
1196 case MEGA_MBOXCMD_LREAD64:
1197 case MEGA_MBOXCMD_LWRITE64:
1198 case MEGA_MBOXCMD_PASSTHRU64:
1199 case MEGA_MBOXCMD_EXTPTHRU:
1200 mbox64->xfer_segment_lo = mbox->m_out.xferaddr;
1201 mbox64->xfer_segment_hi = 0;
1202 mbox->m_out.xferaddr = 0xFFFFFFFF;
1203 break;
1204 default:
1205 mbox64->xfer_segment_lo = 0;
1206 mbox64->xfer_segment_hi = 0;
1207 }
1208
1209 if( likely(adapter->flag & BOARD_MEMMAP) ) {
1210 mbox->m_in.poll = 0;
1211 mbox->m_in.ack = 0;
1212 mbox->m_in.numstatus = 0xFF;
1213 mbox->m_in.status = 0xFF;
1214 WRINDOOR(adapter, adapter->mbox_dma | 0x1);
1215
1216 while((volatile u8)mbox->m_in.numstatus == 0xFF)
1217 cpu_relax();
1218
1219 mbox->m_in.numstatus = 0xFF;
1220
1221 while( (volatile u8)mbox->m_in.poll != 0x77 )
1222 cpu_relax();
1223
1224 mbox->m_in.poll = 0;
1225 mbox->m_in.ack = 0x77;
1226
1227 WRINDOOR(adapter, adapter->mbox_dma | 0x2);
1228
1229 while(RDINDOOR(adapter) & 0x2)
1230 cpu_relax();
1231 }
1232 else {
1233 irq_disable(adapter);
1234 issue_command(adapter);
1235
1236 while (!((byte = irq_state(adapter)) & INTR_VALID))
1237 cpu_relax();
1238
1239 set_irq_state(adapter, byte);
1240 irq_enable(adapter);
1241 irq_ack(adapter);
1242 }
1243
1244 return mbox->m_in.status;
1245
1246bug_blocked_mailbox:
1247 dev_warn(&adapter->dev->dev, "Blocked mailbox......!!\n");
1248 udelay (1000);
1249 return -1;
1250}
1251
1252
1253
1254
1255
1256
1257
1258
1259
1260
1261
1262static irqreturn_t
1263megaraid_isr_iomapped(int irq, void *devp)
1264{
1265 adapter_t *adapter = devp;
1266 unsigned long flags;
1267 u8 status;
1268 u8 nstatus;
1269 u8 completed[MAX_FIRMWARE_STATUS];
1270 u8 byte;
1271 int handled = 0;
1272
1273
1274
1275
1276
1277 spin_lock_irqsave(&adapter->lock, flags);
1278
1279 do {
1280
1281 byte = irq_state(adapter);
1282 if( (byte & VALID_INTR_BYTE) == 0 ) {
1283
1284
1285
1286 goto out_unlock;
1287 }
1288 set_irq_state(adapter, byte);
1289
1290 while((nstatus = (volatile u8)adapter->mbox->m_in.numstatus)
1291 == 0xFF)
1292 cpu_relax();
1293 adapter->mbox->m_in.numstatus = 0xFF;
1294
1295 status = adapter->mbox->m_in.status;
1296
1297
1298
1299
1300 atomic_sub(nstatus, &adapter->pend_cmds);
1301
1302 memcpy(completed, (void *)adapter->mbox->m_in.completed,
1303 nstatus);
1304
1305
1306 irq_ack(adapter);
1307
1308 mega_cmd_done(adapter, completed, nstatus, status);
1309
1310 mega_rundoneq(adapter);
1311
1312 handled = 1;
1313
1314
1315 if(atomic_read(&adapter->quiescent) == 0) {
1316 mega_runpendq(adapter);
1317 }
1318
1319 } while(1);
1320
1321 out_unlock:
1322
1323 spin_unlock_irqrestore(&adapter->lock, flags);
1324
1325 return IRQ_RETVAL(handled);
1326}
1327
1328
1329
1330
1331
1332
1333
1334
1335
1336
1337
1338static irqreturn_t
1339megaraid_isr_memmapped(int irq, void *devp)
1340{
1341 adapter_t *adapter = devp;
1342 unsigned long flags;
1343 u8 status;
1344 u32 dword = 0;
1345 u8 nstatus;
1346 u8 completed[MAX_FIRMWARE_STATUS];
1347 int handled = 0;
1348
1349
1350
1351
1352
1353 spin_lock_irqsave(&adapter->lock, flags);
1354
1355 do {
1356
1357 dword = RDOUTDOOR(adapter);
1358 if(dword != 0x10001234) {
1359
1360
1361
1362 goto out_unlock;
1363 }
1364 WROUTDOOR(adapter, 0x10001234);
1365
1366 while((nstatus = (volatile u8)adapter->mbox->m_in.numstatus)
1367 == 0xFF) {
1368 cpu_relax();
1369 }
1370 adapter->mbox->m_in.numstatus = 0xFF;
1371
1372 status = adapter->mbox->m_in.status;
1373
1374
1375
1376
1377 atomic_sub(nstatus, &adapter->pend_cmds);
1378
1379 memcpy(completed, (void *)adapter->mbox->m_in.completed,
1380 nstatus);
1381
1382
1383 WRINDOOR(adapter, 0x2);
1384
1385 handled = 1;
1386
1387 while( RDINDOOR(adapter) & 0x02 )
1388 cpu_relax();
1389
1390 mega_cmd_done(adapter, completed, nstatus, status);
1391
1392 mega_rundoneq(adapter);
1393
1394
1395 if(atomic_read(&adapter->quiescent) == 0) {
1396 mega_runpendq(adapter);
1397 }
1398
1399 } while(1);
1400
1401 out_unlock:
1402
1403 spin_unlock_irqrestore(&adapter->lock, flags);
1404
1405 return IRQ_RETVAL(handled);
1406}
1407
1408
1409
1410
1411
1412
1413
1414
1415
1416static void
1417mega_cmd_done(adapter_t *adapter, u8 completed[], int nstatus, int status)
1418{
1419 mega_ext_passthru *epthru = NULL;
1420 struct scatterlist *sgl;
1421 struct scsi_cmnd *cmd = NULL;
1422 mega_passthru *pthru = NULL;
1423 mbox_t *mbox = NULL;
1424 u8 c;
1425 scb_t *scb;
1426 int islogical;
1427 int cmdid;
1428 int i;
1429
1430
1431
1432
1433
1434 for( i = 0; i < nstatus; i++ ) {
1435
1436 cmdid = completed[i];
1437
1438
1439
1440
1441
1442
1443
1444
1445 if (cmdid == CMDID_INT_CMDS) {
1446 scb = &adapter->int_scb;
1447
1448 list_del_init(&scb->list);
1449 scb->state = SCB_FREE;
1450
1451 adapter->int_status = status;
1452 complete(&adapter->int_waitq);
1453 } else {
1454 scb = &adapter->scb_list[cmdid];
1455
1456
1457
1458
1459 if( !(scb->state & SCB_ISSUED) || scb->cmd == NULL ) {
1460 dev_crit(&adapter->dev->dev, "invalid command "
1461 "Id %d, scb->state:%x, scsi cmd:%p\n",
1462 cmdid, scb->state, scb->cmd);
1463
1464 continue;
1465 }
1466
1467
1468
1469
1470 if( scb->state & SCB_ABORT ) {
1471
1472 dev_warn(&adapter->dev->dev,
1473 "aborted cmd [%x] complete\n",
1474 scb->idx);
1475
1476 scb->cmd->result = (DID_ABORT << 16);
1477
1478 list_add_tail(SCSI_LIST(scb->cmd),
1479 &adapter->completed_list);
1480
1481 mega_free_scb(adapter, scb);
1482
1483 continue;
1484 }
1485
1486
1487
1488
1489 if( scb->state & SCB_RESET ) {
1490
1491 dev_warn(&adapter->dev->dev,
1492 "reset cmd [%x] complete\n",
1493 scb->idx);
1494
1495 scb->cmd->result = (DID_RESET << 16);
1496
1497 list_add_tail(SCSI_LIST(scb->cmd),
1498 &adapter->completed_list);
1499
1500 mega_free_scb (adapter, scb);
1501
1502 continue;
1503 }
1504
1505 cmd = scb->cmd;
1506 pthru = scb->pthru;
1507 epthru = scb->epthru;
1508 mbox = (mbox_t *)scb->raw_mbox;
1509
1510#if MEGA_HAVE_STATS
1511 {
1512
1513 int logdrv = mbox->m_out.logdrv;
1514
1515 islogical = adapter->logdrv_chan[cmd->channel];
1516
1517
1518
1519
1520
1521 if( status && islogical && (cmd->cmnd[0] == READ_6 ||
1522 cmd->cmnd[0] == READ_10 ||
1523 cmd->cmnd[0] == READ_12)) {
1524
1525
1526
1527
1528 adapter->rd_errors[logdrv%0x80]++;
1529 }
1530
1531 if( status && islogical && (cmd->cmnd[0] == WRITE_6 ||
1532 cmd->cmnd[0] == WRITE_10 ||
1533 cmd->cmnd[0] == WRITE_12)) {
1534
1535
1536
1537
1538 adapter->wr_errors[logdrv%0x80]++;
1539 }
1540
1541 }
1542#endif
1543 }
1544
1545
1546
1547
1548
1549
1550
1551 islogical = adapter->logdrv_chan[cmd->device->channel];
1552 if( cmd->cmnd[0] == INQUIRY && !islogical ) {
1553
1554 sgl = scsi_sglist(cmd);
1555 if( sg_page(sgl) ) {
1556 c = *(unsigned char *) sg_virt(&sgl[0]);
1557 } else {
1558 dev_warn(&adapter->dev->dev, "invalid sg\n");
1559 c = 0;
1560 }
1561
1562 if(IS_RAID_CH(adapter, cmd->device->channel) &&
1563 ((c & 0x1F ) == TYPE_DISK)) {
1564 status = 0xF0;
1565 }
1566 }
1567
1568
1569 cmd->result = 0;
1570
1571
1572 switch (status) {
1573 case 0x00:
1574 cmd->result |= (DID_OK << 16);
1575 break;
1576
1577 case 0x02:
1578
1579
1580
1581 if( mbox->m_out.cmd == MEGA_MBOXCMD_PASSTHRU ||
1582 mbox->m_out.cmd == MEGA_MBOXCMD_PASSTHRU64 ) {
1583
1584 memcpy(cmd->sense_buffer, pthru->reqsensearea,
1585 14);
1586
1587 cmd->result = (DRIVER_SENSE << 24) |
1588 (DID_OK << 16) |
1589 (CHECK_CONDITION << 1);
1590 }
1591 else {
1592 if (mbox->m_out.cmd == MEGA_MBOXCMD_EXTPTHRU) {
1593
1594 memcpy(cmd->sense_buffer,
1595 epthru->reqsensearea, 14);
1596
1597 cmd->result = (DRIVER_SENSE << 24) |
1598 (DID_OK << 16) |
1599 (CHECK_CONDITION << 1);
1600 } else {
1601 cmd->sense_buffer[0] = 0x70;
1602 cmd->sense_buffer[2] = ABORTED_COMMAND;
1603 cmd->result |= (CHECK_CONDITION << 1);
1604 }
1605 }
1606 break;
1607
1608 case 0x08:
1609
1610 cmd->result |= (DID_BUS_BUSY << 16) | status;
1611 break;
1612
1613 default:
1614#if MEGA_HAVE_CLUSTERING
1615
1616
1617
1618
1619 if( cmd->cmnd[0] == TEST_UNIT_READY ) {
1620 cmd->result |= (DID_ERROR << 16) |
1621 (RESERVATION_CONFLICT << 1);
1622 }
1623 else
1624
1625
1626
1627
1628 if( status == 1 &&
1629 (cmd->cmnd[0] == RESERVE ||
1630 cmd->cmnd[0] == RELEASE) ) {
1631
1632 cmd->result |= (DID_ERROR << 16) |
1633 (RESERVATION_CONFLICT << 1);
1634 }
1635 else
1636#endif
1637 cmd->result |= (DID_BAD_TARGET << 16)|status;
1638 }
1639
1640 mega_free_scb(adapter, scb);
1641
1642
1643 list_add_tail(SCSI_LIST(cmd), &adapter->completed_list);
1644 }
1645}
1646
1647
1648
1649
1650
1651
1652
1653static void
1654mega_rundoneq (adapter_t *adapter)
1655{
1656 struct scsi_cmnd *cmd;
1657 struct list_head *pos;
1658
1659 list_for_each(pos, &adapter->completed_list) {
1660
1661 struct scsi_pointer* spos = (struct scsi_pointer *)pos;
1662
1663 cmd = list_entry(spos, struct scsi_cmnd, SCp);
1664 cmd->scsi_done(cmd);
1665 }
1666
1667 INIT_LIST_HEAD(&adapter->completed_list);
1668}
1669
1670
1671
1672
1673
1674
1675static void
1676mega_free_scb(adapter_t *adapter, scb_t *scb)
1677{
1678 switch( scb->dma_type ) {
1679
1680 case MEGA_DMA_TYPE_NONE:
1681 break;
1682
1683 case MEGA_SGLIST:
1684 scsi_dma_unmap(scb->cmd);
1685 break;
1686 default:
1687 break;
1688 }
1689
1690
1691
1692
1693 list_del_init(&scb->list);
1694
1695
1696 scb->state = SCB_FREE;
1697 scb->cmd = NULL;
1698
1699 list_add(&scb->list, &adapter->free_list);
1700}
1701
1702
1703static int
1704__mega_busywait_mbox (adapter_t *adapter)
1705{
1706 volatile mbox_t *mbox = adapter->mbox;
1707 long counter;
1708
1709 for (counter = 0; counter < 10000; counter++) {
1710 if (!mbox->m_in.busy)
1711 return 0;
1712 udelay(100);
1713 cond_resched();
1714 }
1715 return -1;
1716}
1717
1718
1719
1720
1721
1722static int
1723mega_build_sglist(adapter_t *adapter, scb_t *scb, u32 *buf, u32 *len)
1724{
1725 struct scatterlist *sg;
1726 struct scsi_cmnd *cmd;
1727 int sgcnt;
1728 int idx;
1729
1730 cmd = scb->cmd;
1731
1732
1733
1734
1735
1736
1737 sgcnt = scsi_dma_map(cmd);
1738
1739 scb->dma_type = MEGA_SGLIST;
1740
1741 BUG_ON(sgcnt > adapter->sglen || sgcnt < 0);
1742
1743 *len = 0;
1744
1745 if (scsi_sg_count(cmd) == 1 && !adapter->has_64bit_addr) {
1746 sg = scsi_sglist(cmd);
1747 scb->dma_h_bulkdata = sg_dma_address(sg);
1748 *buf = (u32)scb->dma_h_bulkdata;
1749 *len = sg_dma_len(sg);
1750 return 0;
1751 }
1752
1753 scsi_for_each_sg(cmd, sg, sgcnt, idx) {
1754 if (adapter->has_64bit_addr) {
1755 scb->sgl64[idx].address = sg_dma_address(sg);
1756 *len += scb->sgl64[idx].length = sg_dma_len(sg);
1757 } else {
1758 scb->sgl[idx].address = sg_dma_address(sg);
1759 *len += scb->sgl[idx].length = sg_dma_len(sg);
1760 }
1761 }
1762
1763
1764 *buf = scb->sgl_dma_addr;
1765
1766
1767 return sgcnt;
1768}
1769
1770
1771
1772
1773
1774
1775
1776
1777static void
1778mega_8_to_40ld(mraid_inquiry *inquiry, mega_inquiry3 *enquiry3,
1779 mega_product_info *product_info)
1780{
1781 int i;
1782
1783 product_info->max_commands = inquiry->adapter_info.max_commands;
1784 enquiry3->rebuild_rate = inquiry->adapter_info.rebuild_rate;
1785 product_info->nchannels = inquiry->adapter_info.nchannels;
1786
1787 for (i = 0; i < 4; i++) {
1788 product_info->fw_version[i] =
1789 inquiry->adapter_info.fw_version[i];
1790
1791 product_info->bios_version[i] =
1792 inquiry->adapter_info.bios_version[i];
1793 }
1794 enquiry3->cache_flush_interval =
1795 inquiry->adapter_info.cache_flush_interval;
1796
1797 product_info->dram_size = inquiry->adapter_info.dram_size;
1798
1799 enquiry3->num_ldrv = inquiry->logdrv_info.num_ldrv;
1800
1801 for (i = 0; i < MAX_LOGICAL_DRIVES_8LD; i++) {
1802 enquiry3->ldrv_size[i] = inquiry->logdrv_info.ldrv_size[i];
1803 enquiry3->ldrv_prop[i] = inquiry->logdrv_info.ldrv_prop[i];
1804 enquiry3->ldrv_state[i] = inquiry->logdrv_info.ldrv_state[i];
1805 }
1806
1807 for (i = 0; i < (MAX_PHYSICAL_DRIVES); i++)
1808 enquiry3->pdrv_state[i] = inquiry->pdrv_info.pdrv_state[i];
1809}
1810
1811static inline void
1812mega_free_sgl(adapter_t *adapter)
1813{
1814 scb_t *scb;
1815 int i;
1816
1817 for(i = 0; i < adapter->max_cmds; i++) {
1818
1819 scb = &adapter->scb_list[i];
1820
1821 if( scb->sgl64 ) {
1822 pci_free_consistent(adapter->dev,
1823 sizeof(mega_sgl64) * adapter->sglen,
1824 scb->sgl64,
1825 scb->sgl_dma_addr);
1826
1827 scb->sgl64 = NULL;
1828 }
1829
1830 if( scb->pthru ) {
1831 pci_free_consistent(adapter->dev, sizeof(mega_passthru),
1832 scb->pthru, scb->pthru_dma_addr);
1833
1834 scb->pthru = NULL;
1835 }
1836
1837 if( scb->epthru ) {
1838 pci_free_consistent(adapter->dev,
1839 sizeof(mega_ext_passthru),
1840 scb->epthru, scb->epthru_dma_addr);
1841
1842 scb->epthru = NULL;
1843 }
1844
1845 }
1846}
1847
1848
1849
1850
1851
1852const char *
1853megaraid_info(struct Scsi_Host *host)
1854{
1855 static char buffer[512];
1856 adapter_t *adapter;
1857
1858 adapter = (adapter_t *)host->hostdata;
1859
1860 sprintf (buffer,
1861 "LSI Logic MegaRAID %s %d commands %d targs %d chans %d luns",
1862 adapter->fw_version, adapter->product_info.max_commands,
1863 adapter->host->max_id, adapter->host->max_channel,
1864 (u32)adapter->host->max_lun);
1865 return buffer;
1866}
1867
1868
1869
1870
1871
1872static int
1873megaraid_abort(struct scsi_cmnd *cmd)
1874{
1875 adapter_t *adapter;
1876 int rval;
1877
1878 adapter = (adapter_t *)cmd->device->host->hostdata;
1879
1880 rval = megaraid_abort_and_reset(adapter, cmd, SCB_ABORT);
1881
1882
1883
1884
1885
1886 mega_rundoneq(adapter);
1887
1888 return rval;
1889}
1890
1891
1892static int
1893megaraid_reset(struct scsi_cmnd *cmd)
1894{
1895 adapter_t *adapter;
1896 megacmd_t mc;
1897 int rval;
1898
1899 adapter = (adapter_t *)cmd->device->host->hostdata;
1900
1901#if MEGA_HAVE_CLUSTERING
1902 mc.cmd = MEGA_CLUSTER_CMD;
1903 mc.opcode = MEGA_RESET_RESERVATIONS;
1904
1905 if( mega_internal_command(adapter, &mc, NULL) != 0 ) {
1906 dev_warn(&adapter->dev->dev, "reservation reset failed\n");
1907 }
1908 else {
1909 dev_info(&adapter->dev->dev, "reservation reset\n");
1910 }
1911#endif
1912
1913 spin_lock_irq(&adapter->lock);
1914
1915 rval = megaraid_abort_and_reset(adapter, cmd, SCB_RESET);
1916
1917
1918
1919
1920
1921 mega_rundoneq(adapter);
1922 spin_unlock_irq(&adapter->lock);
1923
1924 return rval;
1925}
1926
1927
1928
1929
1930
1931
1932
1933
1934
1935
1936static int
1937megaraid_abort_and_reset(adapter_t *adapter, struct scsi_cmnd *cmd, int aor)
1938{
1939 struct list_head *pos, *next;
1940 scb_t *scb;
1941
1942 dev_warn(&adapter->dev->dev, "%s cmd=%x <c=%d t=%d l=%d>\n",
1943 (aor == SCB_ABORT)? "ABORTING":"RESET",
1944 cmd->cmnd[0], cmd->device->channel,
1945 cmd->device->id, (u32)cmd->device->lun);
1946
1947 if(list_empty(&adapter->pending_list))
1948 return FAILED;
1949
1950 list_for_each_safe(pos, next, &adapter->pending_list) {
1951
1952 scb = list_entry(pos, scb_t, list);
1953
1954 if (scb->cmd == cmd) {
1955
1956 scb->state |= aor;
1957
1958
1959
1960
1961
1962
1963
1964 if( scb->state & SCB_ISSUED ) {
1965
1966 dev_warn(&adapter->dev->dev,
1967 "%s[%x], fw owner\n",
1968 (aor==SCB_ABORT) ? "ABORTING":"RESET",
1969 scb->idx);
1970
1971 return FAILED;
1972 }
1973 else {
1974
1975
1976
1977
1978
1979 dev_warn(&adapter->dev->dev,
1980 "%s-[%x], driver owner\n",
1981 (aor==SCB_ABORT) ? "ABORTING":"RESET",
1982 scb->idx);
1983
1984 mega_free_scb(adapter, scb);
1985
1986 if( aor == SCB_ABORT ) {
1987 cmd->result = (DID_ABORT << 16);
1988 }
1989 else {
1990 cmd->result = (DID_RESET << 16);
1991 }
1992
1993 list_add_tail(SCSI_LIST(cmd),
1994 &adapter->completed_list);
1995
1996 return SUCCESS;
1997 }
1998 }
1999 }
2000
2001 return FAILED;
2002}
2003
2004static inline int
2005make_local_pdev(adapter_t *adapter, struct pci_dev **pdev)
2006{
2007 *pdev = pci_alloc_dev(NULL);
2008
2009 if( *pdev == NULL ) return -1;
2010
2011 memcpy(*pdev, adapter->dev, sizeof(struct pci_dev));
2012
2013 if( pci_set_dma_mask(*pdev, DMA_BIT_MASK(32)) != 0 ) {
2014 kfree(*pdev);
2015 return -1;
2016 }
2017
2018 return 0;
2019}
2020
2021static inline void
2022free_local_pdev(struct pci_dev *pdev)
2023{
2024 kfree(pdev);
2025}
2026
2027
2028
2029
2030
2031
2032
2033
2034static inline void *
2035mega_allocate_inquiry(dma_addr_t *dma_handle, struct pci_dev *pdev)
2036{
2037 return pci_alloc_consistent(pdev, sizeof(mega_inquiry3), dma_handle);
2038}
2039
2040
2041static inline void
2042mega_free_inquiry(void *inquiry, dma_addr_t dma_handle, struct pci_dev *pdev)
2043{
2044 pci_free_consistent(pdev, sizeof(mega_inquiry3), inquiry, dma_handle);
2045}
2046
2047
2048#ifdef CONFIG_PROC_FS
2049
2050
2051
2052
2053
2054
2055
2056
2057
2058static int
2059proc_show_config(struct seq_file *m, void *v)
2060{
2061
2062 adapter_t *adapter = m->private;
2063
2064 seq_puts(m, MEGARAID_VERSION);
2065 if(adapter->product_info.product_name[0])
2066 seq_printf(m, "%s\n", adapter->product_info.product_name);
2067
2068 seq_puts(m, "Controller Type: ");
2069
2070 if( adapter->flag & BOARD_MEMMAP )
2071 seq_puts(m, "438/466/467/471/493/518/520/531/532\n");
2072 else
2073 seq_puts(m, "418/428/434\n");
2074
2075 if(adapter->flag & BOARD_40LD)
2076 seq_puts(m, "Controller Supports 40 Logical Drives\n");
2077
2078 if(adapter->flag & BOARD_64BIT)
2079 seq_puts(m, "Controller capable of 64-bit memory addressing\n");
2080 if( adapter->has_64bit_addr )
2081 seq_puts(m, "Controller using 64-bit memory addressing\n");
2082 else
2083 seq_puts(m, "Controller is not using 64-bit memory addressing\n");
2084
2085 seq_printf(m, "Base = %08lx, Irq = %d, ",
2086 adapter->base, adapter->host->irq);
2087
2088 seq_printf(m, "Logical Drives = %d, Channels = %d\n",
2089 adapter->numldrv, adapter->product_info.nchannels);
2090
2091 seq_printf(m, "Version =%s:%s, DRAM = %dMb\n",
2092 adapter->fw_version, adapter->bios_version,
2093 adapter->product_info.dram_size);
2094
2095 seq_printf(m, "Controller Queue Depth = %d, Driver Queue Depth = %d\n",
2096 adapter->product_info.max_commands, adapter->max_cmds);
2097
2098 seq_printf(m, "support_ext_cdb = %d\n", adapter->support_ext_cdb);
2099 seq_printf(m, "support_random_del = %d\n", adapter->support_random_del);
2100 seq_printf(m, "boot_ldrv_enabled = %d\n", adapter->boot_ldrv_enabled);
2101 seq_printf(m, "boot_ldrv = %d\n", adapter->boot_ldrv);
2102 seq_printf(m, "boot_pdrv_enabled = %d\n", adapter->boot_pdrv_enabled);
2103 seq_printf(m, "boot_pdrv_ch = %d\n", adapter->boot_pdrv_ch);
2104 seq_printf(m, "boot_pdrv_tgt = %d\n", adapter->boot_pdrv_tgt);
2105 seq_printf(m, "quiescent = %d\n",
2106 atomic_read(&adapter->quiescent));
2107 seq_printf(m, "has_cluster = %d\n", adapter->has_cluster);
2108
2109 seq_puts(m, "\nModule Parameters:\n");
2110 seq_printf(m, "max_cmd_per_lun = %d\n", max_cmd_per_lun);
2111 seq_printf(m, "max_sectors_per_io = %d\n", max_sectors_per_io);
2112 return 0;
2113}
2114
2115
2116
2117
2118
2119
2120
2121
2122static int
2123proc_show_stat(struct seq_file *m, void *v)
2124{
2125 adapter_t *adapter = m->private;
2126#if MEGA_HAVE_STATS
2127 int i;
2128#endif
2129
2130 seq_puts(m, "Statistical Information for this controller\n");
2131 seq_printf(m, "pend_cmds = %d\n", atomic_read(&adapter->pend_cmds));
2132#if MEGA_HAVE_STATS
2133 for(i = 0; i < adapter->numldrv; i++) {
2134 seq_printf(m, "Logical Drive %d:\n", i);
2135 seq_printf(m, "\tReads Issued = %lu, Writes Issued = %lu\n",
2136 adapter->nreads[i], adapter->nwrites[i]);
2137 seq_printf(m, "\tSectors Read = %lu, Sectors Written = %lu\n",
2138 adapter->nreadblocks[i], adapter->nwriteblocks[i]);
2139 seq_printf(m, "\tRead errors = %lu, Write errors = %lu\n\n",
2140 adapter->rd_errors[i], adapter->wr_errors[i]);
2141 }
2142#else
2143 seq_puts(m, "IO and error counters not compiled in driver.\n");
2144#endif
2145 return 0;
2146}
2147
2148
2149
2150
2151
2152
2153
2154
2155
2156
2157static int
2158proc_show_mbox(struct seq_file *m, void *v)
2159{
2160 adapter_t *adapter = m->private;
2161 volatile mbox_t *mbox = adapter->mbox;
2162
2163 seq_puts(m, "Contents of Mail Box Structure\n");
2164 seq_printf(m, " Fw Command = 0x%02x\n", mbox->m_out.cmd);
2165 seq_printf(m, " Cmd Sequence = 0x%02x\n", mbox->m_out.cmdid);
2166 seq_printf(m, " No of Sectors= %04d\n", mbox->m_out.numsectors);
2167 seq_printf(m, " LBA = 0x%02x\n", mbox->m_out.lba);
2168 seq_printf(m, " DTA = 0x%08x\n", mbox->m_out.xferaddr);
2169 seq_printf(m, " Logical Drive= 0x%02x\n", mbox->m_out.logdrv);
2170 seq_printf(m, " No of SG Elmt= 0x%02x\n", mbox->m_out.numsgelements);
2171 seq_printf(m, " Busy = %01x\n", mbox->m_in.busy);
2172 seq_printf(m, " Status = 0x%02x\n", mbox->m_in.status);
2173 return 0;
2174}
2175
2176
2177
2178
2179
2180
2181
2182
2183
2184static int
2185proc_show_rebuild_rate(struct seq_file *m, void *v)
2186{
2187 adapter_t *adapter = m->private;
2188 dma_addr_t dma_handle;
2189 caddr_t inquiry;
2190 struct pci_dev *pdev;
2191
2192 if( make_local_pdev(adapter, &pdev) != 0 )
2193 return 0;
2194
2195 if( (inquiry = mega_allocate_inquiry(&dma_handle, pdev)) == NULL )
2196 goto free_pdev;
2197
2198 if( mega_adapinq(adapter, dma_handle) != 0 ) {
2199 seq_puts(m, "Adapter inquiry failed.\n");
2200 dev_warn(&adapter->dev->dev, "inquiry failed\n");
2201 goto free_inquiry;
2202 }
2203
2204 if( adapter->flag & BOARD_40LD )
2205 seq_printf(m, "Rebuild Rate: [%d%%]\n",
2206 ((mega_inquiry3 *)inquiry)->rebuild_rate);
2207 else
2208 seq_printf(m, "Rebuild Rate: [%d%%]\n",
2209 ((mraid_ext_inquiry *)
2210 inquiry)->raid_inq.adapter_info.rebuild_rate);
2211
2212free_inquiry:
2213 mega_free_inquiry(inquiry, dma_handle, pdev);
2214free_pdev:
2215 free_local_pdev(pdev);
2216 return 0;
2217}
2218
2219
2220
2221
2222
2223
2224
2225
2226
2227static int
2228proc_show_battery(struct seq_file *m, void *v)
2229{
2230 adapter_t *adapter = m->private;
2231 dma_addr_t dma_handle;
2232 caddr_t inquiry;
2233 struct pci_dev *pdev;
2234 u8 battery_status;
2235
2236 if( make_local_pdev(adapter, &pdev) != 0 )
2237 return 0;
2238
2239 if( (inquiry = mega_allocate_inquiry(&dma_handle, pdev)) == NULL )
2240 goto free_pdev;
2241
2242 if( mega_adapinq(adapter, dma_handle) != 0 ) {
2243 seq_puts(m, "Adapter inquiry failed.\n");
2244 dev_warn(&adapter->dev->dev, "inquiry failed\n");
2245 goto free_inquiry;
2246 }
2247
2248 if( adapter->flag & BOARD_40LD ) {
2249 battery_status = ((mega_inquiry3 *)inquiry)->battery_status;
2250 }
2251 else {
2252 battery_status = ((mraid_ext_inquiry *)inquiry)->
2253 raid_inq.adapter_info.battery_status;
2254 }
2255
2256
2257
2258
2259 seq_printf(m, "Battery Status:[%d]", battery_status);
2260
2261 if(battery_status == MEGA_BATT_CHARGE_DONE)
2262 seq_puts(m, " Charge Done");
2263
2264 if(battery_status & MEGA_BATT_MODULE_MISSING)
2265 seq_puts(m, " Module Missing");
2266
2267 if(battery_status & MEGA_BATT_LOW_VOLTAGE)
2268 seq_puts(m, " Low Voltage");
2269
2270 if(battery_status & MEGA_BATT_TEMP_HIGH)
2271 seq_puts(m, " Temperature High");
2272
2273 if(battery_status & MEGA_BATT_PACK_MISSING)
2274 seq_puts(m, " Pack Missing");
2275
2276 if(battery_status & MEGA_BATT_CHARGE_INPROG)
2277 seq_puts(m, " Charge In-progress");
2278
2279 if(battery_status & MEGA_BATT_CHARGE_FAIL)
2280 seq_puts(m, " Charge Fail");
2281
2282 if(battery_status & MEGA_BATT_CYCLES_EXCEEDED)
2283 seq_puts(m, " Cycles Exceeded");
2284
2285 seq_putc(m, '\n');
2286
2287free_inquiry:
2288 mega_free_inquiry(inquiry, dma_handle, pdev);
2289free_pdev:
2290 free_local_pdev(pdev);
2291 return 0;
2292}
2293
2294
2295
2296
2297
2298static void
2299mega_print_inquiry(struct seq_file *m, char *scsi_inq)
2300{
2301 int i;
2302
2303 seq_puts(m, " Vendor: ");
2304 seq_write(m, scsi_inq + 8, 8);
2305 seq_puts(m, " Model: ");
2306 seq_write(m, scsi_inq + 16, 16);
2307 seq_puts(m, " Rev: ");
2308 seq_write(m, scsi_inq + 32, 4);
2309 seq_putc(m, '\n');
2310
2311 i = scsi_inq[0] & 0x1f;
2312 seq_printf(m, " Type: %s ", scsi_device_type(i));
2313
2314 seq_printf(m, " ANSI SCSI revision: %02x",
2315 scsi_inq[2] & 0x07);
2316
2317 if( (scsi_inq[2] & 0x07) == 1 && (scsi_inq[3] & 0x0f) == 1 )
2318 seq_puts(m, " CCS\n");
2319 else
2320 seq_putc(m, '\n');
2321}
2322
2323
2324
2325
2326
2327
2328
2329
2330
2331static int
2332proc_show_pdrv(struct seq_file *m, adapter_t *adapter, int channel)
2333{
2334 dma_addr_t dma_handle;
2335 char *scsi_inq;
2336 dma_addr_t scsi_inq_dma_handle;
2337 caddr_t inquiry;
2338 struct pci_dev *pdev;
2339 u8 *pdrv_state;
2340 u8 state;
2341 int tgt;
2342 int max_channels;
2343 int i;
2344
2345 if( make_local_pdev(adapter, &pdev) != 0 )
2346 return 0;
2347
2348 if( (inquiry = mega_allocate_inquiry(&dma_handle, pdev)) == NULL )
2349 goto free_pdev;
2350
2351 if( mega_adapinq(adapter, dma_handle) != 0 ) {
2352 seq_puts(m, "Adapter inquiry failed.\n");
2353 dev_warn(&adapter->dev->dev, "inquiry failed\n");
2354 goto free_inquiry;
2355 }
2356
2357
2358 scsi_inq = pci_alloc_consistent(pdev, 256, &scsi_inq_dma_handle);
2359 if( scsi_inq == NULL ) {
2360 seq_puts(m, "memory not available for scsi inq.\n");
2361 goto free_inquiry;
2362 }
2363
2364 if( adapter->flag & BOARD_40LD ) {
2365 pdrv_state = ((mega_inquiry3 *)inquiry)->pdrv_state;
2366 }
2367 else {
2368 pdrv_state = ((mraid_ext_inquiry *)inquiry)->
2369 raid_inq.pdrv_info.pdrv_state;
2370 }
2371
2372 max_channels = adapter->product_info.nchannels;
2373
2374 if( channel >= max_channels ) {
2375 goto free_pci;
2376 }
2377
2378 for( tgt = 0; tgt <= MAX_TARGET; tgt++ ) {
2379
2380 i = channel*16 + tgt;
2381
2382 state = *(pdrv_state + i);
2383 switch( state & 0x0F ) {
2384 case PDRV_ONLINE:
2385 seq_printf(m, "Channel:%2d Id:%2d State: Online",
2386 channel, tgt);
2387 break;
2388
2389 case PDRV_FAILED:
2390 seq_printf(m, "Channel:%2d Id:%2d State: Failed",
2391 channel, tgt);
2392 break;
2393
2394 case PDRV_RBLD:
2395 seq_printf(m, "Channel:%2d Id:%2d State: Rebuild",
2396 channel, tgt);
2397 break;
2398
2399 case PDRV_HOTSPARE:
2400 seq_printf(m, "Channel:%2d Id:%2d State: Hot spare",
2401 channel, tgt);
2402 break;
2403
2404 default:
2405 seq_printf(m, "Channel:%2d Id:%2d State: Un-configured",
2406 channel, tgt);
2407 break;
2408 }
2409
2410
2411
2412
2413
2414
2415 memset(scsi_inq, 0, 256);
2416 if( mega_internal_dev_inquiry(adapter, channel, tgt,
2417 scsi_inq_dma_handle) ||
2418 (scsi_inq[0] & 0x1F) != TYPE_DISK ) {
2419 continue;
2420 }
2421
2422
2423
2424
2425
2426 seq_puts(m, ".\n");
2427 mega_print_inquiry(m, scsi_inq);
2428 }
2429
2430free_pci:
2431 pci_free_consistent(pdev, 256, scsi_inq, scsi_inq_dma_handle);
2432free_inquiry:
2433 mega_free_inquiry(inquiry, dma_handle, pdev);
2434free_pdev:
2435 free_local_pdev(pdev);
2436 return 0;
2437}
2438
2439
2440
2441
2442
2443
2444
2445
2446static int
2447proc_show_pdrv_ch0(struct seq_file *m, void *v)
2448{
2449 return proc_show_pdrv(m, m->private, 0);
2450}
2451
2452
2453
2454
2455
2456
2457
2458
2459
2460static int
2461proc_show_pdrv_ch1(struct seq_file *m, void *v)
2462{
2463 return proc_show_pdrv(m, m->private, 1);
2464}
2465
2466
2467
2468
2469
2470
2471
2472
2473
2474static int
2475proc_show_pdrv_ch2(struct seq_file *m, void *v)
2476{
2477 return proc_show_pdrv(m, m->private, 2);
2478}
2479
2480
2481
2482
2483
2484
2485
2486
2487
2488static int
2489proc_show_pdrv_ch3(struct seq_file *m, void *v)
2490{
2491 return proc_show_pdrv(m, m->private, 3);
2492}
2493
2494
2495
2496
2497
2498
2499
2500
2501
2502
2503
2504
2505static int
2506proc_show_rdrv(struct seq_file *m, adapter_t *adapter, int start, int end )
2507{
2508 dma_addr_t dma_handle;
2509 logdrv_param *lparam;
2510 megacmd_t mc;
2511 char *disk_array;
2512 dma_addr_t disk_array_dma_handle;
2513 caddr_t inquiry;
2514 struct pci_dev *pdev;
2515 u8 *rdrv_state;
2516 int num_ldrv;
2517 u32 array_sz;
2518 int i;
2519
2520 if( make_local_pdev(adapter, &pdev) != 0 )
2521 return 0;
2522
2523 if( (inquiry = mega_allocate_inquiry(&dma_handle, pdev)) == NULL )
2524 goto free_pdev;
2525
2526 if( mega_adapinq(adapter, dma_handle) != 0 ) {
2527 seq_puts(m, "Adapter inquiry failed.\n");
2528 dev_warn(&adapter->dev->dev, "inquiry failed\n");
2529 goto free_inquiry;
2530 }
2531
2532 memset(&mc, 0, sizeof(megacmd_t));
2533
2534 if( adapter->flag & BOARD_40LD ) {
2535 array_sz = sizeof(disk_array_40ld);
2536
2537 rdrv_state = ((mega_inquiry3 *)inquiry)->ldrv_state;
2538
2539 num_ldrv = ((mega_inquiry3 *)inquiry)->num_ldrv;
2540 }
2541 else {
2542 array_sz = sizeof(disk_array_8ld);
2543
2544 rdrv_state = ((mraid_ext_inquiry *)inquiry)->
2545 raid_inq.logdrv_info.ldrv_state;
2546
2547 num_ldrv = ((mraid_ext_inquiry *)inquiry)->
2548 raid_inq.logdrv_info.num_ldrv;
2549 }
2550
2551 disk_array = pci_alloc_consistent(pdev, array_sz,
2552 &disk_array_dma_handle);
2553
2554 if( disk_array == NULL ) {
2555 seq_puts(m, "memory not available.\n");
2556 goto free_inquiry;
2557 }
2558
2559 mc.xferaddr = (u32)disk_array_dma_handle;
2560
2561 if( adapter->flag & BOARD_40LD ) {
2562 mc.cmd = FC_NEW_CONFIG;
2563 mc.opcode = OP_DCMD_READ_CONFIG;
2564
2565 if( mega_internal_command(adapter, &mc, NULL) ) {
2566 seq_puts(m, "40LD read config failed.\n");
2567 goto free_pci;
2568 }
2569
2570 }
2571 else {
2572 mc.cmd = NEW_READ_CONFIG_8LD;
2573
2574 if( mega_internal_command(adapter, &mc, NULL) ) {
2575 mc.cmd = READ_CONFIG_8LD;
2576 if( mega_internal_command(adapter, &mc, NULL) ) {
2577 seq_puts(m, "8LD read config failed.\n");
2578 goto free_pci;
2579 }
2580 }
2581 }
2582
2583 for( i = start; i < ( (end+1 < num_ldrv) ? end+1 : num_ldrv ); i++ ) {
2584
2585 if( adapter->flag & BOARD_40LD ) {
2586 lparam =
2587 &((disk_array_40ld *)disk_array)->ldrv[i].lparam;
2588 }
2589 else {
2590 lparam =
2591 &((disk_array_8ld *)disk_array)->ldrv[i].lparam;
2592 }
2593
2594
2595
2596
2597
2598 seq_printf(m, "Logical drive:%2d:, ", i);
2599
2600 switch( rdrv_state[i] & 0x0F ) {
2601 case RDRV_OFFLINE:
2602 seq_puts(m, "state: offline");
2603 break;
2604 case RDRV_DEGRADED:
2605 seq_puts(m, "state: degraded");
2606 break;
2607 case RDRV_OPTIMAL:
2608 seq_puts(m, "state: optimal");
2609 break;
2610 case RDRV_DELETED:
2611 seq_puts(m, "state: deleted");
2612 break;
2613 default:
2614 seq_puts(m, "state: unknown");
2615 break;
2616 }
2617
2618
2619
2620
2621
2622 if( (rdrv_state[i] & 0xF0) == 0x20 )
2623 seq_puts(m, ", check-consistency in progress");
2624 else if( (rdrv_state[i] & 0xF0) == 0x10 )
2625 seq_puts(m, ", initialization in progress");
2626
2627 seq_putc(m, '\n');
2628
2629 seq_printf(m, "Span depth:%3d, ", lparam->span_depth);
2630 seq_printf(m, "RAID level:%3d, ", lparam->level);
2631 seq_printf(m, "Stripe size:%3d, ",
2632 lparam->stripe_sz ? lparam->stripe_sz/2: 128);
2633 seq_printf(m, "Row size:%3d\n", lparam->row_size);
2634
2635 seq_puts(m, "Read Policy: ");
2636 switch(lparam->read_ahead) {
2637 case NO_READ_AHEAD:
2638 seq_puts(m, "No read ahead, ");
2639 break;
2640 case READ_AHEAD:
2641 seq_puts(m, "Read ahead, ");
2642 break;
2643 case ADAP_READ_AHEAD:
2644 seq_puts(m, "Adaptive, ");
2645 break;
2646
2647 }
2648
2649 seq_puts(m, "Write Policy: ");
2650 switch(lparam->write_mode) {
2651 case WRMODE_WRITE_THRU:
2652 seq_puts(m, "Write thru, ");
2653 break;
2654 case WRMODE_WRITE_BACK:
2655 seq_puts(m, "Write back, ");
2656 break;
2657 }
2658
2659 seq_puts(m, "Cache Policy: ");
2660 switch(lparam->direct_io) {
2661 case CACHED_IO:
2662 seq_puts(m, "Cached IO\n\n");
2663 break;
2664 case DIRECT_IO:
2665 seq_puts(m, "Direct IO\n\n");
2666 break;
2667 }
2668 }
2669
2670free_pci:
2671 pci_free_consistent(pdev, array_sz, disk_array,
2672 disk_array_dma_handle);
2673free_inquiry:
2674 mega_free_inquiry(inquiry, dma_handle, pdev);
2675free_pdev:
2676 free_local_pdev(pdev);
2677 return 0;
2678}
2679
2680
2681
2682
2683
2684
2685
2686
2687static int
2688proc_show_rdrv_10(struct seq_file *m, void *v)
2689{
2690 return proc_show_rdrv(m, m->private, 0, 9);
2691}
2692
2693
2694
2695
2696
2697
2698
2699
2700
2701static int
2702proc_show_rdrv_20(struct seq_file *m, void *v)
2703{
2704 return proc_show_rdrv(m, m->private, 10, 19);
2705}
2706
2707
2708
2709
2710
2711
2712
2713
2714
2715static int
2716proc_show_rdrv_30(struct seq_file *m, void *v)
2717{
2718 return proc_show_rdrv(m, m->private, 20, 29);
2719}
2720
2721
2722
2723
2724
2725
2726
2727
2728
2729static int
2730proc_show_rdrv_40(struct seq_file *m, void *v)
2731{
2732 return proc_show_rdrv(m, m->private, 30, 39);
2733}
2734
2735
2736
2737
2738
2739
2740
2741
2742static void
2743mega_create_proc_entry(int index, struct proc_dir_entry *parent)
2744{
2745 adapter_t *adapter = hba_soft_state[index];
2746 struct proc_dir_entry *dir;
2747 u8 string[16];
2748
2749 sprintf(string, "hba%d", adapter->host->host_no);
2750 dir = proc_mkdir_data(string, 0, parent, adapter);
2751 if (!dir) {
2752 dev_warn(&adapter->dev->dev, "proc_mkdir failed\n");
2753 return;
2754 }
2755
2756 proc_create_single_data("config", S_IRUSR, dir,
2757 proc_show_config, adapter);
2758 proc_create_single_data("stat", S_IRUSR, dir,
2759 proc_show_stat, adapter);
2760 proc_create_single_data("mailbox", S_IRUSR, dir,
2761 proc_show_mbox, adapter);
2762#if MEGA_HAVE_ENH_PROC
2763 proc_create_single_data("rebuild-rate", S_IRUSR, dir,
2764 proc_show_rebuild_rate, adapter);
2765 proc_create_single_data("battery-status", S_IRUSR, dir,
2766 proc_show_battery, adapter);
2767 proc_create_single_data("diskdrives-ch0", S_IRUSR, dir,
2768 proc_show_pdrv_ch0, adapter);
2769 proc_create_single_data("diskdrives-ch1", S_IRUSR, dir,
2770 proc_show_pdrv_ch1, adapter);
2771 proc_create_single_data("diskdrives-ch2", S_IRUSR, dir,
2772 proc_show_pdrv_ch2, adapter);
2773 proc_create_single_data("diskdrives-ch3", S_IRUSR, dir,
2774 proc_show_pdrv_ch3, adapter);
2775 proc_create_single_data("raiddrives-0-9", S_IRUSR, dir,
2776 proc_show_rdrv_10, adapter);
2777 proc_create_single_data("raiddrives-10-19", S_IRUSR, dir,
2778 proc_show_rdrv_20, adapter);
2779 proc_create_single_data("raiddrives-20-29", S_IRUSR, dir,
2780 proc_show_rdrv_30, adapter);
2781 proc_create_single_data("raiddrives-30-39", S_IRUSR, dir,
2782 proc_show_rdrv_40, adapter);
2783#endif
2784}
2785
2786#else
2787static inline void mega_create_proc_entry(int index, struct proc_dir_entry *parent)
2788{
2789}
2790#endif
2791
2792
2793
2794
2795
2796
2797
2798static int
2799megaraid_biosparam(struct scsi_device *sdev, struct block_device *bdev,
2800 sector_t capacity, int geom[])
2801{
2802 adapter_t *adapter;
2803 unsigned char *bh;
2804 int heads;
2805 int sectors;
2806 int cylinders;
2807 int rval;
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 bh = scsi_bios_ptable(bdev);
2835
2836 if( bh ) {
2837 rval = scsi_partsize(bh, capacity,
2838 &geom[2], &geom[0], &geom[1]);
2839 kfree(bh);
2840 if( rval != -1 )
2841 return rval;
2842 }
2843
2844 dev_info(&adapter->dev->dev,
2845 "invalid partition on this disk on channel %d\n",
2846 sdev->channel);
2847
2848
2849 heads = 64;
2850 sectors = 32;
2851 cylinders = (ulong)capacity / (heads * sectors);
2852
2853
2854 if ((ulong)capacity >= 0x200000) {
2855 heads = 255;
2856 sectors = 63;
2857 cylinders = (ulong)capacity / (heads * sectors);
2858 }
2859
2860
2861 geom[0] = heads;
2862 geom[1] = sectors;
2863 geom[2] = cylinders;
2864 }
2865
2866 return 0;
2867}
2868
2869
2870
2871
2872
2873
2874
2875
2876
2877static int
2878mega_init_scb(adapter_t *adapter)
2879{
2880 scb_t *scb;
2881 int i;
2882
2883 for( i = 0; i < adapter->max_cmds; i++ ) {
2884
2885 scb = &adapter->scb_list[i];
2886
2887 scb->sgl64 = NULL;
2888 scb->sgl = NULL;
2889 scb->pthru = NULL;
2890 scb->epthru = NULL;
2891 }
2892
2893 for( i = 0; i < adapter->max_cmds; i++ ) {
2894
2895 scb = &adapter->scb_list[i];
2896
2897 scb->idx = i;
2898
2899 scb->sgl64 = pci_alloc_consistent(adapter->dev,
2900 sizeof(mega_sgl64) * adapter->sglen,
2901 &scb->sgl_dma_addr);
2902
2903 scb->sgl = (mega_sglist *)scb->sgl64;
2904
2905 if( !scb->sgl ) {
2906 dev_warn(&adapter->dev->dev, "RAID: Can't allocate sglist\n");
2907 mega_free_sgl(adapter);
2908 return -1;
2909 }
2910
2911 scb->pthru = pci_alloc_consistent(adapter->dev,
2912 sizeof(mega_passthru),
2913 &scb->pthru_dma_addr);
2914
2915 if( !scb->pthru ) {
2916 dev_warn(&adapter->dev->dev, "RAID: Can't allocate passthru\n");
2917 mega_free_sgl(adapter);
2918 return -1;
2919 }
2920
2921 scb->epthru = pci_alloc_consistent(adapter->dev,
2922 sizeof(mega_ext_passthru),
2923 &scb->epthru_dma_addr);
2924
2925 if( !scb->epthru ) {
2926 dev_warn(&adapter->dev->dev,
2927 "Can't allocate extended passthru\n");
2928 mega_free_sgl(adapter);
2929 return -1;
2930 }
2931
2932
2933 scb->dma_type = MEGA_DMA_TYPE_NONE;
2934
2935
2936
2937
2938
2939
2940 scb->state = SCB_FREE;
2941 scb->cmd = NULL;
2942 list_add(&scb->list, &adapter->free_list);
2943 }
2944
2945 return 0;
2946}
2947
2948
2949
2950
2951
2952
2953
2954
2955
2956
2957static int
2958megadev_open (struct inode *inode, struct file *filep)
2959{
2960
2961
2962
2963 if( !capable(CAP_SYS_ADMIN) ) return -EACCES;
2964
2965 return 0;
2966}
2967
2968
2969
2970
2971
2972
2973
2974
2975
2976
2977
2978
2979
2980
2981static int
2982megadev_ioctl(struct file *filep, unsigned int cmd, unsigned long arg)
2983{
2984 adapter_t *adapter;
2985 nitioctl_t uioc;
2986 int adapno;
2987 int rval;
2988 mega_passthru __user *upthru;
2989 mega_passthru *pthru;
2990 dma_addr_t pthru_dma_hndl;
2991 void *data = NULL;
2992 dma_addr_t data_dma_hndl;
2993 megacmd_t mc;
2994 megastat_t __user *ustats;
2995 int num_ldrv;
2996 u32 uxferaddr = 0;
2997 struct pci_dev *pdev;
2998
2999 ustats = NULL;
3000 num_ldrv = 0;
3001
3002
3003
3004
3005
3006 if( (_IOC_TYPE(cmd) != MEGAIOC_MAGIC) && (cmd != USCSICMD) ) {
3007 return -EINVAL;
3008 }
3009
3010
3011
3012
3013
3014
3015
3016
3017
3018 memset(&uioc, 0, sizeof(nitioctl_t));
3019 if( (rval = mega_m_to_n( (void __user *)arg, &uioc)) != 0 )
3020 return rval;
3021
3022
3023 switch( uioc.opcode ) {
3024
3025 case GET_DRIVER_VER:
3026 if( put_user(driver_ver, (u32 __user *)uioc.uioc_uaddr) )
3027 return (-EFAULT);
3028
3029 break;
3030
3031 case GET_N_ADAP:
3032 if( put_user(hba_count, (u32 __user *)uioc.uioc_uaddr) )
3033 return (-EFAULT);
3034
3035
3036
3037
3038
3039
3040 return hba_count;
3041
3042 case GET_ADAP_INFO:
3043
3044
3045
3046
3047 if( (adapno = GETADAP(uioc.adapno)) >= hba_count )
3048 return (-ENODEV);
3049
3050 if( copy_to_user(uioc.uioc_uaddr, mcontroller+adapno,
3051 sizeof(struct mcontroller)) )
3052 return (-EFAULT);
3053 break;
3054
3055#if MEGA_HAVE_STATS
3056
3057 case GET_STATS:
3058
3059
3060
3061 if( (adapno = GETADAP(uioc.adapno)) >= hba_count )
3062 return (-ENODEV);
3063
3064 adapter = hba_soft_state[adapno];
3065
3066 ustats = uioc.uioc_uaddr;
3067
3068 if( copy_from_user(&num_ldrv, &ustats->num_ldrv, sizeof(int)) )
3069 return (-EFAULT);
3070
3071
3072
3073
3074 if( num_ldrv >= MAX_LOGICAL_DRIVES_40LD ) return -EINVAL;
3075
3076 if( copy_to_user(ustats->nreads, adapter->nreads,
3077 num_ldrv*sizeof(u32)) )
3078 return -EFAULT;
3079
3080 if( copy_to_user(ustats->nreadblocks, adapter->nreadblocks,
3081 num_ldrv*sizeof(u32)) )
3082 return -EFAULT;
3083
3084 if( copy_to_user(ustats->nwrites, adapter->nwrites,
3085 num_ldrv*sizeof(u32)) )
3086 return -EFAULT;
3087
3088 if( copy_to_user(ustats->nwriteblocks, adapter->nwriteblocks,
3089 num_ldrv*sizeof(u32)) )
3090 return -EFAULT;
3091
3092 if( copy_to_user(ustats->rd_errors, adapter->rd_errors,
3093 num_ldrv*sizeof(u32)) )
3094 return -EFAULT;
3095
3096 if( copy_to_user(ustats->wr_errors, adapter->wr_errors,
3097 num_ldrv*sizeof(u32)) )
3098 return -EFAULT;
3099
3100 return 0;
3101
3102#endif
3103 case MBOX_CMD:
3104
3105
3106
3107
3108 if( (adapno = GETADAP(uioc.adapno)) >= hba_count )
3109 return (-ENODEV);
3110
3111 adapter = hba_soft_state[adapno];
3112
3113
3114
3115
3116
3117 if( uioc.uioc_rmbox[0] == FC_DEL_LOGDRV &&
3118 uioc.uioc_rmbox[2] == OP_DEL_LOGDRV ) {
3119
3120
3121
3122
3123 if( !adapter->support_random_del ) {
3124 dev_warn(&adapter->dev->dev, "logdrv "
3125 "delete on non-supporting F/W\n");
3126
3127 return (-EINVAL);
3128 }
3129
3130 rval = mega_del_logdrv( adapter, uioc.uioc_rmbox[3] );
3131
3132 if( rval == 0 ) {
3133 memset(&mc, 0, sizeof(megacmd_t));
3134
3135 mc.status = rval;
3136
3137 rval = mega_n_to_m((void __user *)arg, &mc);
3138 }
3139
3140 return rval;
3141 }
3142
3143
3144
3145
3146 if( uioc.uioc_rmbox[0] == MEGA_MBOXCMD_PASSTHRU64 ||
3147 uioc.uioc_rmbox[0] == MEGA_MBOXCMD_EXTPTHRU ) {
3148
3149 dev_warn(&adapter->dev->dev, "rejected passthru\n");
3150
3151 return (-EINVAL);
3152 }
3153
3154
3155
3156
3157
3158 if( make_local_pdev(adapter, &pdev) != 0 )
3159 return -EIO;
3160
3161
3162 if( uioc.uioc_rmbox[0] == MEGA_MBOXCMD_PASSTHRU ) {
3163
3164
3165 pthru = pci_alloc_consistent(pdev,
3166 sizeof(mega_passthru),
3167 &pthru_dma_hndl);
3168
3169 if( pthru == NULL ) {
3170 free_local_pdev(pdev);
3171 return (-ENOMEM);
3172 }
3173
3174
3175
3176
3177 upthru = (mega_passthru __user *)(unsigned long)MBOX(uioc)->xferaddr;
3178
3179
3180
3181
3182 if( copy_from_user(pthru, upthru,
3183 sizeof(mega_passthru)) ) {
3184
3185 pci_free_consistent(pdev,
3186 sizeof(mega_passthru), pthru,
3187 pthru_dma_hndl);
3188
3189 free_local_pdev(pdev);
3190
3191 return (-EFAULT);
3192 }
3193
3194
3195
3196
3197 if( pthru->dataxferlen ) {
3198 data = pci_alloc_consistent(pdev,
3199 pthru->dataxferlen,
3200 &data_dma_hndl);
3201
3202 if( data == NULL ) {
3203 pci_free_consistent(pdev,
3204 sizeof(mega_passthru),
3205 pthru,
3206 pthru_dma_hndl);
3207
3208 free_local_pdev(pdev);
3209
3210 return (-ENOMEM);
3211 }
3212
3213
3214
3215
3216
3217 uxferaddr = pthru->dataxferaddr;
3218 pthru->dataxferaddr = data_dma_hndl;
3219 }
3220
3221
3222
3223
3224
3225 if( pthru->dataxferlen && (uioc.flags & UIOC_WR) ) {
3226
3227
3228
3229 if( copy_from_user(data, (char __user *)(unsigned long) uxferaddr,
3230 pthru->dataxferlen) ) {
3231 rval = (-EFAULT);
3232 goto freemem_and_return;
3233 }
3234 }
3235
3236 memset(&mc, 0, sizeof(megacmd_t));
3237
3238 mc.cmd = MEGA_MBOXCMD_PASSTHRU;
3239 mc.xferaddr = (u32)pthru_dma_hndl;
3240
3241
3242
3243
3244 mega_internal_command(adapter, &mc, pthru);
3245
3246 rval = mega_n_to_m((void __user *)arg, &mc);
3247
3248 if( rval ) goto freemem_and_return;
3249
3250
3251
3252
3253
3254 if( pthru->dataxferlen && (uioc.flags & UIOC_RD) ) {
3255 if( copy_to_user((char __user *)(unsigned long) uxferaddr, data,
3256 pthru->dataxferlen) ) {
3257 rval = (-EFAULT);
3258 }
3259 }
3260
3261
3262
3263
3264
3265 if (copy_to_user(upthru->reqsensearea,
3266 pthru->reqsensearea, 14))
3267 rval = -EFAULT;
3268
3269freemem_and_return:
3270 if( pthru->dataxferlen ) {
3271 pci_free_consistent(pdev,
3272 pthru->dataxferlen, data,
3273 data_dma_hndl);
3274 }
3275
3276 pci_free_consistent(pdev, sizeof(mega_passthru),
3277 pthru, pthru_dma_hndl);
3278
3279 free_local_pdev(pdev);
3280
3281 return rval;
3282 }
3283 else {
3284
3285
3286
3287
3288
3289 if( uioc.xferlen ) {
3290 data = pci_alloc_consistent(pdev,
3291 uioc.xferlen, &data_dma_hndl);
3292
3293 if( data == NULL ) {
3294 free_local_pdev(pdev);
3295 return (-ENOMEM);
3296 }
3297
3298 uxferaddr = MBOX(uioc)->xferaddr;
3299 }
3300
3301
3302
3303
3304 if( uioc.xferlen && (uioc.flags & UIOC_WR) ) {
3305
3306
3307
3308 if( copy_from_user(data, (char __user *)(unsigned long) uxferaddr,
3309 uioc.xferlen) ) {
3310
3311 pci_free_consistent(pdev,
3312 uioc.xferlen,
3313 data, data_dma_hndl);
3314
3315 free_local_pdev(pdev);
3316
3317 return (-EFAULT);
3318 }
3319 }
3320
3321 memcpy(&mc, MBOX(uioc), sizeof(megacmd_t));
3322
3323 mc.xferaddr = (u32)data_dma_hndl;
3324
3325
3326
3327
3328 mega_internal_command(adapter, &mc, NULL);
3329
3330 rval = mega_n_to_m((void __user *)arg, &mc);
3331
3332 if( rval ) {
3333 if( uioc.xferlen ) {
3334 pci_free_consistent(pdev,
3335 uioc.xferlen, data,
3336 data_dma_hndl);
3337 }
3338
3339 free_local_pdev(pdev);
3340
3341 return rval;
3342 }
3343
3344
3345
3346
3347 if( uioc.xferlen && (uioc.flags & UIOC_RD) ) {
3348 if( copy_to_user((char __user *)(unsigned long) uxferaddr, data,
3349 uioc.xferlen) ) {
3350
3351 rval = (-EFAULT);
3352 }
3353 }
3354
3355 if( uioc.xferlen ) {
3356 pci_free_consistent(pdev,
3357 uioc.xferlen, data,
3358 data_dma_hndl);
3359 }
3360
3361 free_local_pdev(pdev);
3362
3363 return rval;
3364 }
3365
3366 default:
3367 return (-EINVAL);
3368 }
3369
3370 return 0;
3371}
3372
3373static long
3374megadev_unlocked_ioctl(struct file *filep, unsigned int cmd, unsigned long arg)
3375{
3376 int ret;
3377
3378 mutex_lock(&megadev_mutex);
3379 ret = megadev_ioctl(filep, cmd, arg);
3380 mutex_unlock(&megadev_mutex);
3381
3382 return ret;
3383}
3384
3385
3386
3387
3388
3389
3390
3391
3392
3393
3394
3395static int
3396mega_m_to_n(void __user *arg, nitioctl_t *uioc)
3397{
3398 struct uioctl_t uioc_mimd;
3399 char signature[8] = {0};
3400 u8 opcode;
3401 u8 subopcode;
3402
3403
3404
3405
3406
3407
3408
3409
3410
3411 if( copy_from_user(signature, arg, 7) )
3412 return (-EFAULT);
3413
3414 if( memcmp(signature, "MEGANIT", 7) == 0 ) {
3415
3416
3417
3418
3419
3420
3421
3422 return -EINVAL;
3423#if 0
3424 if( copy_from_user(uioc, arg, sizeof(nitioctl_t)) )
3425 return (-EFAULT);
3426 return 0;
3427#endif
3428 }
3429
3430
3431
3432
3433
3434
3435 if( copy_from_user(&uioc_mimd, arg, sizeof(struct uioctl_t)) )
3436 return (-EFAULT);
3437
3438
3439
3440
3441
3442 opcode = uioc_mimd.ui.fcs.opcode;
3443 subopcode = uioc_mimd.ui.fcs.subopcode;
3444
3445 switch (opcode) {
3446 case 0x82:
3447
3448 switch (subopcode) {
3449
3450 case MEGAIOC_QDRVRVER:
3451 uioc->opcode = GET_DRIVER_VER;
3452 uioc->uioc_uaddr = uioc_mimd.data;
3453 break;
3454
3455 case MEGAIOC_QNADAP:
3456 uioc->opcode = GET_N_ADAP;
3457 uioc->uioc_uaddr = uioc_mimd.data;
3458 break;
3459
3460 case MEGAIOC_QADAPINFO:
3461 uioc->opcode = GET_ADAP_INFO;
3462 uioc->adapno = uioc_mimd.ui.fcs.adapno;
3463 uioc->uioc_uaddr = uioc_mimd.data;
3464 break;
3465
3466 default:
3467 return(-EINVAL);
3468 }
3469
3470 break;
3471
3472
3473 case 0x81:
3474
3475 uioc->opcode = MBOX_CMD;
3476 uioc->adapno = uioc_mimd.ui.fcs.adapno;
3477
3478 memcpy(uioc->uioc_rmbox, uioc_mimd.mbox, 18);
3479
3480 uioc->xferlen = uioc_mimd.ui.fcs.length;
3481
3482 if( uioc_mimd.outlen ) uioc->flags = UIOC_RD;
3483 if( uioc_mimd.inlen ) uioc->flags |= UIOC_WR;
3484
3485 break;
3486
3487 case 0x80:
3488
3489 uioc->opcode = MBOX_CMD;
3490 uioc->adapno = uioc_mimd.ui.fcs.adapno;
3491
3492 memcpy(uioc->uioc_rmbox, uioc_mimd.mbox, 18);
3493
3494
3495
3496
3497 uioc->xferlen = uioc_mimd.outlen > uioc_mimd.inlen ?
3498 uioc_mimd.outlen : uioc_mimd.inlen;
3499
3500 if( uioc_mimd.outlen ) uioc->flags = UIOC_RD;
3501 if( uioc_mimd.inlen ) uioc->flags |= UIOC_WR;
3502
3503 break;
3504
3505 default:
3506 return (-EINVAL);
3507
3508 }
3509
3510 return 0;
3511}
3512
3513
3514
3515
3516
3517
3518
3519
3520
3521static int
3522mega_n_to_m(void __user *arg, megacmd_t *mc)
3523{
3524 nitioctl_t __user *uiocp;
3525 megacmd_t __user *umc;
3526 mega_passthru __user *upthru;
3527 struct uioctl_t __user *uioc_mimd;
3528 char signature[8] = {0};
3529
3530
3531
3532
3533 if( copy_from_user(signature, arg, 7) )
3534 return -EFAULT;
3535
3536 if( memcmp(signature, "MEGANIT", 7) == 0 ) {
3537
3538 uiocp = arg;
3539
3540 if( put_user(mc->status, (u8 __user *)&MBOX_P(uiocp)->status) )
3541 return (-EFAULT);
3542
3543 if( mc->cmd == MEGA_MBOXCMD_PASSTHRU ) {
3544
3545 umc = MBOX_P(uiocp);
3546
3547 if (get_user(upthru, (mega_passthru __user * __user *)&umc->xferaddr))
3548 return -EFAULT;
3549
3550 if( put_user(mc->status, (u8 __user *)&upthru->scsistatus))
3551 return (-EFAULT);
3552 }
3553 }
3554 else {
3555 uioc_mimd = arg;
3556
3557 if( put_user(mc->status, (u8 __user *)&uioc_mimd->mbox[17]) )
3558 return (-EFAULT);
3559
3560 if( mc->cmd == MEGA_MBOXCMD_PASSTHRU ) {
3561
3562 umc = (megacmd_t __user *)uioc_mimd->mbox;
3563
3564 if (get_user(upthru, (mega_passthru __user * __user *)&umc->xferaddr))
3565 return (-EFAULT);
3566
3567 if( put_user(mc->status, (u8 __user *)&upthru->scsistatus) )
3568 return (-EFAULT);
3569 }
3570 }
3571
3572 return 0;
3573}
3574
3575
3576
3577
3578
3579
3580
3581
3582
3583
3584
3585
3586static int
3587mega_is_bios_enabled(adapter_t *adapter)
3588{
3589 unsigned char raw_mbox[sizeof(struct mbox_out)];
3590 mbox_t *mbox;
3591 int ret;
3592
3593 mbox = (mbox_t *)raw_mbox;
3594
3595 memset(&mbox->m_out, 0, sizeof(raw_mbox));
3596
3597 memset((void *)adapter->mega_buffer, 0, MEGA_BUFFER_SIZE);
3598
3599 mbox->m_out.xferaddr = (u32)adapter->buf_dma_handle;
3600
3601 raw_mbox[0] = IS_BIOS_ENABLED;
3602 raw_mbox[2] = GET_BIOS;
3603
3604
3605 ret = issue_scb_block(adapter, raw_mbox);
3606
3607 return *(char *)adapter->mega_buffer;
3608}
3609
3610
3611
3612
3613
3614
3615
3616
3617
3618
3619static void
3620mega_enum_raid_scsi(adapter_t *adapter)
3621{
3622 unsigned char raw_mbox[sizeof(struct mbox_out)];
3623 mbox_t *mbox;
3624 int i;
3625
3626 mbox = (mbox_t *)raw_mbox;
3627
3628 memset(&mbox->m_out, 0, sizeof(raw_mbox));
3629
3630
3631
3632
3633 raw_mbox[0] = CHNL_CLASS;
3634 raw_mbox[2] = GET_CHNL_CLASS;
3635
3636 memset((void *)adapter->mega_buffer, 0, MEGA_BUFFER_SIZE);
3637
3638 mbox->m_out.xferaddr = (u32)adapter->buf_dma_handle;
3639
3640
3641
3642
3643
3644 adapter->mega_ch_class = 0xFF;
3645
3646 if(!issue_scb_block(adapter, raw_mbox)) {
3647 adapter->mega_ch_class = *((char *)adapter->mega_buffer);
3648
3649 }
3650
3651 for( i = 0; i < adapter->product_info.nchannels; i++ ) {
3652 if( (adapter->mega_ch_class >> i) & 0x01 ) {
3653 dev_info(&adapter->dev->dev, "channel[%d] is raid\n",
3654 i);
3655 }
3656 else {
3657 dev_info(&adapter->dev->dev, "channel[%d] is scsi\n",
3658 i);
3659 }
3660 }
3661
3662 return;
3663}
3664
3665
3666
3667
3668
3669
3670
3671
3672
3673static void
3674mega_get_boot_drv(adapter_t *adapter)
3675{
3676 struct private_bios_data *prv_bios_data;
3677 unsigned char raw_mbox[sizeof(struct mbox_out)];
3678 mbox_t *mbox;
3679 u16 cksum = 0;
3680 u8 *cksum_p;
3681 u8 boot_pdrv;
3682 int i;
3683
3684 mbox = (mbox_t *)raw_mbox;
3685
3686 memset(&mbox->m_out, 0, sizeof(raw_mbox));
3687
3688 raw_mbox[0] = BIOS_PVT_DATA;
3689 raw_mbox[2] = GET_BIOS_PVT_DATA;
3690
3691 memset((void *)adapter->mega_buffer, 0, MEGA_BUFFER_SIZE);
3692
3693 mbox->m_out.xferaddr = (u32)adapter->buf_dma_handle;
3694
3695 adapter->boot_ldrv_enabled = 0;
3696 adapter->boot_ldrv = 0;
3697
3698 adapter->boot_pdrv_enabled = 0;
3699 adapter->boot_pdrv_ch = 0;
3700 adapter->boot_pdrv_tgt = 0;
3701
3702 if(issue_scb_block(adapter, raw_mbox) == 0) {
3703 prv_bios_data =
3704 (struct private_bios_data *)adapter->mega_buffer;
3705
3706 cksum = 0;
3707 cksum_p = (char *)prv_bios_data;
3708 for (i = 0; i < 14; i++ ) {
3709 cksum += (u16)(*cksum_p++);
3710 }
3711
3712 if (prv_bios_data->cksum == (u16)(0-cksum) ) {
3713
3714
3715
3716
3717
3718 if( prv_bios_data->boot_drv & 0x80 ) {
3719 adapter->boot_pdrv_enabled = 1;
3720 boot_pdrv = prv_bios_data->boot_drv & 0x7F;
3721 adapter->boot_pdrv_ch = boot_pdrv / 16;
3722 adapter->boot_pdrv_tgt = boot_pdrv % 16;
3723 }
3724 else {
3725 adapter->boot_ldrv_enabled = 1;
3726 adapter->boot_ldrv = prv_bios_data->boot_drv;
3727 }
3728 }
3729 }
3730
3731}
3732
3733
3734
3735
3736
3737
3738
3739
3740static int
3741mega_support_random_del(adapter_t *adapter)
3742{
3743 unsigned char raw_mbox[sizeof(struct mbox_out)];
3744 mbox_t *mbox;
3745 int rval;
3746
3747 mbox = (mbox_t *)raw_mbox;
3748
3749 memset(&mbox->m_out, 0, sizeof(raw_mbox));
3750
3751
3752
3753
3754 raw_mbox[0] = FC_DEL_LOGDRV;
3755 raw_mbox[2] = OP_SUP_DEL_LOGDRV;
3756
3757 rval = issue_scb_block(adapter, raw_mbox);
3758
3759 return !rval;
3760}
3761
3762
3763
3764
3765
3766
3767
3768
3769static int
3770mega_support_ext_cdb(adapter_t *adapter)
3771{
3772 unsigned char raw_mbox[sizeof(struct mbox_out)];
3773 mbox_t *mbox;
3774 int rval;
3775
3776 mbox = (mbox_t *)raw_mbox;
3777
3778 memset(&mbox->m_out, 0, sizeof(raw_mbox));
3779
3780
3781
3782 raw_mbox[0] = 0xA4;
3783 raw_mbox[2] = 0x16;
3784
3785 rval = issue_scb_block(adapter, raw_mbox);
3786
3787 return !rval;
3788}
3789
3790
3791
3792
3793
3794
3795
3796
3797
3798
3799static int
3800mega_del_logdrv(adapter_t *adapter, int logdrv)
3801{
3802 unsigned long flags;
3803 scb_t *scb;
3804 int rval;
3805
3806
3807
3808
3809
3810 atomic_set(&adapter->quiescent, 1);
3811
3812
3813
3814
3815
3816 while (atomic_read(&adapter->pend_cmds) > 0 ||
3817 !list_empty(&adapter->pending_list))
3818 msleep(1000);
3819
3820 rval = mega_do_del_logdrv(adapter, logdrv);
3821
3822 spin_lock_irqsave(&adapter->lock, flags);
3823
3824
3825
3826
3827
3828 if (adapter->read_ldidmap) {
3829 struct list_head *pos;
3830 list_for_each(pos, &adapter->pending_list) {
3831 scb = list_entry(pos, scb_t, list);
3832 if (scb->pthru->logdrv < 0x80 )
3833 scb->pthru->logdrv += 0x80;
3834 }
3835 }
3836
3837 atomic_set(&adapter->quiescent, 0);
3838
3839 mega_runpendq(adapter);
3840
3841 spin_unlock_irqrestore(&adapter->lock, flags);
3842
3843 return rval;
3844}
3845
3846
3847static int
3848mega_do_del_logdrv(adapter_t *adapter, int logdrv)
3849{
3850 megacmd_t mc;
3851 int rval;
3852
3853 memset( &mc, 0, sizeof(megacmd_t));
3854
3855 mc.cmd = FC_DEL_LOGDRV;
3856 mc.opcode = OP_DEL_LOGDRV;
3857 mc.subopcode = logdrv;
3858
3859 rval = mega_internal_command(adapter, &mc, NULL);
3860
3861
3862 if(rval) {
3863 dev_warn(&adapter->dev->dev, "Delete LD-%d failed", logdrv);
3864 return rval;
3865 }
3866
3867
3868
3869
3870
3871 adapter->read_ldidmap = 1;
3872
3873 return rval;
3874}
3875
3876
3877
3878
3879
3880
3881
3882
3883
3884static void
3885mega_get_max_sgl(adapter_t *adapter)
3886{
3887 unsigned char raw_mbox[sizeof(struct mbox_out)];
3888 mbox_t *mbox;
3889
3890 mbox = (mbox_t *)raw_mbox;
3891
3892 memset(mbox, 0, sizeof(raw_mbox));
3893
3894 memset((void *)adapter->mega_buffer, 0, MEGA_BUFFER_SIZE);
3895
3896 mbox->m_out.xferaddr = (u32)adapter->buf_dma_handle;
3897
3898 raw_mbox[0] = MAIN_MISC_OPCODE;
3899 raw_mbox[2] = GET_MAX_SG_SUPPORT;
3900
3901
3902 if( issue_scb_block(adapter, raw_mbox) ) {
3903
3904
3905
3906 adapter->sglen = MIN_SGLIST;
3907 }
3908 else {
3909 adapter->sglen = *((char *)adapter->mega_buffer);
3910
3911
3912
3913
3914
3915 if ( adapter->sglen > MAX_SGLIST )
3916 adapter->sglen = MAX_SGLIST;
3917 }
3918
3919 return;
3920}
3921
3922
3923
3924
3925
3926
3927
3928
3929static int
3930mega_support_cluster(adapter_t *adapter)
3931{
3932 unsigned char raw_mbox[sizeof(struct mbox_out)];
3933 mbox_t *mbox;
3934
3935 mbox = (mbox_t *)raw_mbox;
3936
3937 memset(mbox, 0, sizeof(raw_mbox));
3938
3939 memset((void *)adapter->mega_buffer, 0, MEGA_BUFFER_SIZE);
3940
3941 mbox->m_out.xferaddr = (u32)adapter->buf_dma_handle;
3942
3943
3944
3945
3946
3947 raw_mbox[0] = MEGA_GET_TARGET_ID;
3948
3949 if( issue_scb_block(adapter, raw_mbox) == 0 ) {
3950
3951
3952
3953
3954
3955 adapter->this_id = *(u32 *)adapter->mega_buffer;
3956 adapter->host->this_id = adapter->this_id;
3957
3958 return 1;
3959 }
3960
3961 return 0;
3962}
3963
3964#ifdef CONFIG_PROC_FS
3965
3966
3967
3968
3969
3970
3971
3972
3973
3974static int
3975mega_adapinq(adapter_t *adapter, dma_addr_t dma_handle)
3976{
3977 megacmd_t mc;
3978
3979 memset(&mc, 0, sizeof(megacmd_t));
3980
3981 if( adapter->flag & BOARD_40LD ) {
3982 mc.cmd = FC_NEW_CONFIG;
3983 mc.opcode = NC_SUBOP_ENQUIRY3;
3984 mc.subopcode = ENQ3_GET_SOLICITED_FULL;
3985 }
3986 else {
3987 mc.cmd = MEGA_MBOXCMD_ADPEXTINQ;
3988 }
3989
3990 mc.xferaddr = (u32)dma_handle;
3991
3992 if ( mega_internal_command(adapter, &mc, NULL) != 0 ) {
3993 return -1;
3994 }
3995
3996 return 0;
3997}
3998
3999
4000
4001
4002
4003
4004
4005
4006
4007
4008static int
4009mega_internal_dev_inquiry(adapter_t *adapter, u8 ch, u8 tgt,
4010 dma_addr_t buf_dma_handle)
4011{
4012 mega_passthru *pthru;
4013 dma_addr_t pthru_dma_handle;
4014 megacmd_t mc;
4015 int rval;
4016 struct pci_dev *pdev;
4017
4018
4019
4020
4021
4022
4023 if( make_local_pdev(adapter, &pdev) != 0 ) return -1;
4024
4025 pthru = pci_alloc_consistent(pdev, sizeof(mega_passthru),
4026 &pthru_dma_handle);
4027
4028 if( pthru == NULL ) {
4029 free_local_pdev(pdev);
4030 return -1;
4031 }
4032
4033 pthru->timeout = 2;
4034 pthru->ars = 1;
4035 pthru->reqsenselen = 14;
4036 pthru->islogical = 0;
4037
4038 pthru->channel = (adapter->flag & BOARD_40LD) ? 0 : ch;
4039
4040 pthru->target = (adapter->flag & BOARD_40LD) ? (ch << 4)|tgt : tgt;
4041
4042 pthru->cdblen = 6;
4043
4044 pthru->cdb[0] = INQUIRY;
4045 pthru->cdb[1] = 0;
4046 pthru->cdb[2] = 0;
4047 pthru->cdb[3] = 0;
4048 pthru->cdb[4] = 255;
4049 pthru->cdb[5] = 0;
4050
4051
4052 pthru->dataxferaddr = (u32)buf_dma_handle;
4053 pthru->dataxferlen = 256;
4054
4055 memset(&mc, 0, sizeof(megacmd_t));
4056
4057 mc.cmd = MEGA_MBOXCMD_PASSTHRU;
4058 mc.xferaddr = (u32)pthru_dma_handle;
4059
4060 rval = mega_internal_command(adapter, &mc, pthru);
4061
4062 pci_free_consistent(pdev, sizeof(mega_passthru), pthru,
4063 pthru_dma_handle);
4064
4065 free_local_pdev(pdev);
4066
4067 return rval;
4068}
4069#endif
4070
4071
4072
4073
4074
4075
4076
4077
4078
4079
4080
4081
4082
4083static int
4084mega_internal_command(adapter_t *adapter, megacmd_t *mc, mega_passthru *pthru)
4085{
4086 unsigned long flags;
4087 scb_t *scb;
4088 int rval;
4089
4090
4091
4092
4093
4094
4095 mutex_lock(&adapter->int_mtx);
4096
4097 scb = &adapter->int_scb;
4098 memset(scb, 0, sizeof(scb_t));
4099
4100 scb->idx = CMDID_INT_CMDS;
4101 scb->state |= SCB_ACTIVE | SCB_PENDQ;
4102
4103 memcpy(scb->raw_mbox, mc, sizeof(megacmd_t));
4104
4105
4106
4107
4108 if (mc->cmd == MEGA_MBOXCMD_PASSTHRU)
4109 scb->pthru = pthru;
4110
4111 spin_lock_irqsave(&adapter->lock, flags);
4112 list_add_tail(&scb->list, &adapter->pending_list);
4113
4114
4115
4116
4117
4118 if (atomic_read(&adapter->quiescent) == 0)
4119 mega_runpendq(adapter);
4120 spin_unlock_irqrestore(&adapter->lock, flags);
4121
4122 wait_for_completion(&adapter->int_waitq);
4123
4124 mc->status = rval = adapter->int_status;
4125
4126
4127
4128
4129
4130 if (rval && trace_level) {
4131 dev_info(&adapter->dev->dev, "cmd [%x, %x, %x] status:[%x]\n",
4132 mc->cmd, mc->opcode, mc->subopcode, rval);
4133 }
4134
4135 mutex_unlock(&adapter->int_mtx);
4136 return rval;
4137}
4138
4139static struct scsi_host_template megaraid_template = {
4140 .module = THIS_MODULE,
4141 .name = "MegaRAID",
4142 .proc_name = "megaraid_legacy",
4143 .info = megaraid_info,
4144 .queuecommand = megaraid_queue,
4145 .bios_param = megaraid_biosparam,
4146 .max_sectors = MAX_SECTORS_PER_IO,
4147 .can_queue = MAX_COMMANDS,
4148 .this_id = DEFAULT_INITIATOR_ID,
4149 .sg_tablesize = MAX_SGLIST,
4150 .cmd_per_lun = DEF_CMD_PER_LUN,
4151 .use_clustering = ENABLE_CLUSTERING,
4152 .eh_abort_handler = megaraid_abort,
4153 .eh_device_reset_handler = megaraid_reset,
4154 .eh_bus_reset_handler = megaraid_reset,
4155 .eh_host_reset_handler = megaraid_reset,
4156 .no_write_same = 1,
4157};
4158
4159static int
4160megaraid_probe_one(struct pci_dev *pdev, const struct pci_device_id *id)
4161{
4162 struct Scsi_Host *host;
4163 adapter_t *adapter;
4164 unsigned long mega_baseport, tbase, flag = 0;
4165 u16 subsysid, subsysvid;
4166 u8 pci_bus, pci_dev_func;
4167 int irq, i, j;
4168 int error = -ENODEV;
4169
4170 if (hba_count >= MAX_CONTROLLERS)
4171 goto out;
4172
4173 if (pci_enable_device(pdev))
4174 goto out;
4175 pci_set_master(pdev);
4176
4177 pci_bus = pdev->bus->number;
4178 pci_dev_func = pdev->devfn;
4179
4180
4181
4182
4183
4184 if (pdev->vendor == PCI_VENDOR_ID_INTEL) {
4185 u16 magic;
4186
4187
4188
4189
4190 if (pdev->subsystem_vendor == PCI_VENDOR_ID_COMPAQ &&
4191 pdev->subsystem_device == 0xC000)
4192 return -ENODEV;
4193
4194 pci_read_config_word(pdev, PCI_CONF_AMISIG, &magic);
4195 if (magic != HBA_SIGNATURE_471 && magic != HBA_SIGNATURE)
4196 return -ENODEV;
4197
4198 }
4199
4200
4201
4202
4203
4204 if (id->driver_data & BOARD_64BIT)
4205 flag |= BOARD_64BIT;
4206 else {
4207 u32 magic64;
4208
4209 pci_read_config_dword(pdev, PCI_CONF_AMISIG64, &magic64);
4210 if (magic64 == HBA_SIGNATURE_64BIT)
4211 flag |= BOARD_64BIT;
4212 }
4213
4214 subsysvid = pdev->subsystem_vendor;
4215 subsysid = pdev->subsystem_device;
4216
4217 dev_notice(&pdev->dev, "found 0x%4.04x:0x%4.04x\n",
4218 id->vendor, id->device);
4219
4220
4221 mega_baseport = pci_resource_start(pdev, 0);
4222 irq = pdev->irq;
4223
4224 tbase = mega_baseport;
4225 if (pci_resource_flags(pdev, 0) & IORESOURCE_MEM) {
4226 flag |= BOARD_MEMMAP;
4227
4228 if (!request_mem_region(mega_baseport, 128, "megaraid")) {
4229 dev_warn(&pdev->dev, "mem region busy!\n");
4230 goto out_disable_device;
4231 }
4232
4233 mega_baseport = (unsigned long)ioremap(mega_baseport, 128);
4234 if (!mega_baseport) {
4235 dev_warn(&pdev->dev, "could not map hba memory\n");
4236 goto out_release_region;
4237 }
4238 } else {
4239 flag |= BOARD_IOMAP;
4240 mega_baseport += 0x10;
4241
4242 if (!request_region(mega_baseport, 16, "megaraid"))
4243 goto out_disable_device;
4244 }
4245
4246
4247 host = scsi_host_alloc(&megaraid_template, sizeof(adapter_t));
4248 if (!host)
4249 goto out_iounmap;
4250
4251 adapter = (adapter_t *)host->hostdata;
4252 memset(adapter, 0, sizeof(adapter_t));
4253
4254 dev_notice(&pdev->dev,
4255 "scsi%d:Found MegaRAID controller at 0x%lx, IRQ:%d\n",
4256 host->host_no, mega_baseport, irq);
4257
4258 adapter->base = mega_baseport;
4259 if (flag & BOARD_MEMMAP)
4260 adapter->mmio_base = (void __iomem *) mega_baseport;
4261
4262 INIT_LIST_HEAD(&adapter->free_list);
4263 INIT_LIST_HEAD(&adapter->pending_list);
4264 INIT_LIST_HEAD(&adapter->completed_list);
4265
4266 adapter->flag = flag;
4267 spin_lock_init(&adapter->lock);
4268
4269 host->cmd_per_lun = max_cmd_per_lun;
4270 host->max_sectors = max_sectors_per_io;
4271
4272 adapter->dev = pdev;
4273 adapter->host = host;
4274
4275 adapter->host->irq = irq;
4276
4277 if (flag & BOARD_MEMMAP)
4278 adapter->host->base = tbase;
4279 else {
4280 adapter->host->io_port = tbase;
4281 adapter->host->n_io_port = 16;
4282 }
4283
4284 adapter->host->unique_id = (pci_bus << 8) | pci_dev_func;
4285
4286
4287
4288
4289 adapter->mega_buffer = pci_alloc_consistent(adapter->dev,
4290 MEGA_BUFFER_SIZE, &adapter->buf_dma_handle);
4291 if (!adapter->mega_buffer) {
4292 dev_warn(&pdev->dev, "out of RAM\n");
4293 goto out_host_put;
4294 }
4295
4296 adapter->scb_list = kmalloc_array(MAX_COMMANDS, sizeof(scb_t),
4297 GFP_KERNEL);
4298 if (!adapter->scb_list) {
4299 dev_warn(&pdev->dev, "out of RAM\n");
4300 goto out_free_cmd_buffer;
4301 }
4302
4303 if (request_irq(irq, (adapter->flag & BOARD_MEMMAP) ?
4304 megaraid_isr_memmapped : megaraid_isr_iomapped,
4305 IRQF_SHARED, "megaraid", adapter)) {
4306 dev_warn(&pdev->dev, "Couldn't register IRQ %d!\n", irq);
4307 goto out_free_scb_list;
4308 }
4309
4310 if (mega_setup_mailbox(adapter))
4311 goto out_free_irq;
4312
4313 if (mega_query_adapter(adapter))
4314 goto out_free_mbox;
4315
4316
4317
4318
4319 if ((subsysid == 0x1111) && (subsysvid == 0x1111)) {
4320
4321
4322
4323 if (!strcmp(adapter->fw_version, "3.00") ||
4324 !strcmp(adapter->fw_version, "3.01")) {
4325
4326 dev_warn(&pdev->dev,
4327 "Your card is a Dell PERC "
4328 "2/SC RAID controller with "
4329 "firmware\nmegaraid: 3.00 or 3.01. "
4330 "This driver is known to have "
4331 "corruption issues\nmegaraid: with "
4332 "those firmware versions on this "
4333 "specific card. In order\nmegaraid: "
4334 "to protect your data, please upgrade "
4335 "your firmware to version\nmegaraid: "
4336 "3.10 or later, available from the "
4337 "Dell Technical Support web\n"
4338 "megaraid: site at\nhttp://support."
4339 "dell.com/us/en/filelib/download/"
4340 "index.asp?fileid=2940\n"
4341 );
4342 }
4343 }
4344
4345
4346
4347
4348
4349
4350
4351 if ((subsysvid == PCI_VENDOR_ID_HP) &&
4352 ((subsysid == 0x60E7) || (subsysid == 0x60E8))) {
4353
4354
4355
4356 if (!strcmp(adapter->fw_version, "H01.07") ||
4357 !strcmp(adapter->fw_version, "H01.08") ||
4358 !strcmp(adapter->fw_version, "H01.09") ) {
4359 dev_warn(&pdev->dev,
4360 "Firmware H.01.07, "
4361 "H.01.08, and H.01.09 on 1M/2M "
4362 "controllers\n"
4363 "do not support 64 bit "
4364 "addressing.\nDISABLING "
4365 "64 bit support.\n");
4366 adapter->flag &= ~BOARD_64BIT;
4367 }
4368 }
4369
4370 if (mega_is_bios_enabled(adapter))
4371 mega_hbas[hba_count].is_bios_enabled = 1;
4372 mega_hbas[hba_count].hostdata_addr = adapter;
4373
4374
4375
4376
4377
4378 mega_enum_raid_scsi(adapter);
4379
4380
4381
4382
4383
4384
4385
4386
4387
4388 mega_get_boot_drv(adapter);
4389
4390 if (adapter->boot_pdrv_enabled) {
4391 j = adapter->product_info.nchannels;
4392 for( i = 0; i < j; i++ )
4393 adapter->logdrv_chan[i] = 0;
4394 for( i = j; i < NVIRT_CHAN + j; i++ )
4395 adapter->logdrv_chan[i] = 1;
4396 } else {
4397 for (i = 0; i < NVIRT_CHAN; i++)
4398 adapter->logdrv_chan[i] = 1;
4399 for (i = NVIRT_CHAN; i < MAX_CHANNELS+NVIRT_CHAN; i++)
4400 adapter->logdrv_chan[i] = 0;
4401 adapter->mega_ch_class <<= NVIRT_CHAN;
4402 }
4403
4404
4405
4406
4407
4408 adapter->read_ldidmap = 0;
4409
4410 adapter->support_random_del = mega_support_random_del(adapter);
4411
4412
4413 if (mega_init_scb(adapter))
4414 goto out_free_mbox;
4415
4416
4417
4418
4419 atomic_set(&adapter->pend_cmds, 0);
4420
4421
4422
4423
4424 atomic_set(&adapter->quiescent, 0);
4425
4426 hba_soft_state[hba_count] = adapter;
4427
4428
4429
4430
4431
4432
4433 i = hba_count;
4434
4435 mcontroller[i].base = mega_baseport;
4436 mcontroller[i].irq = irq;
4437 mcontroller[i].numldrv = adapter->numldrv;
4438 mcontroller[i].pcibus = pci_bus;
4439 mcontroller[i].pcidev = id->device;
4440 mcontroller[i].pcifun = PCI_FUNC (pci_dev_func);
4441 mcontroller[i].pciid = -1;
4442 mcontroller[i].pcivendor = id->vendor;
4443 mcontroller[i].pcislot = PCI_SLOT(pci_dev_func);
4444 mcontroller[i].uid = (pci_bus << 8) | pci_dev_func;
4445
4446
4447
4448 if ((adapter->flag & BOARD_64BIT) && (sizeof(dma_addr_t) == 8)) {
4449 pci_set_dma_mask(pdev, DMA_BIT_MASK(64));
4450 adapter->has_64bit_addr = 1;
4451 } else {
4452 pci_set_dma_mask(pdev, DMA_BIT_MASK(32));
4453 adapter->has_64bit_addr = 0;
4454 }
4455
4456 mutex_init(&adapter->int_mtx);
4457 init_completion(&adapter->int_waitq);
4458
4459 adapter->this_id = DEFAULT_INITIATOR_ID;
4460 adapter->host->this_id = DEFAULT_INITIATOR_ID;
4461
4462#if MEGA_HAVE_CLUSTERING
4463
4464
4465
4466
4467
4468
4469
4470 adapter->has_cluster = mega_support_cluster(adapter);
4471 if (adapter->has_cluster) {
4472 dev_notice(&pdev->dev,
4473 "Cluster driver, initiator id:%d\n",
4474 adapter->this_id);
4475 }
4476#endif
4477
4478 pci_set_drvdata(pdev, host);
4479
4480 mega_create_proc_entry(hba_count, mega_proc_dir_entry);
4481
4482 error = scsi_add_host(host, &pdev->dev);
4483 if (error)
4484 goto out_free_mbox;
4485
4486 scsi_scan_host(host);
4487 hba_count++;
4488 return 0;
4489
4490 out_free_mbox:
4491 pci_free_consistent(adapter->dev, sizeof(mbox64_t),
4492 adapter->una_mbox64, adapter->una_mbox64_dma);
4493 out_free_irq:
4494 free_irq(adapter->host->irq, adapter);
4495 out_free_scb_list:
4496 kfree(adapter->scb_list);
4497 out_free_cmd_buffer:
4498 pci_free_consistent(adapter->dev, MEGA_BUFFER_SIZE,
4499 adapter->mega_buffer, adapter->buf_dma_handle);
4500 out_host_put:
4501 scsi_host_put(host);
4502 out_iounmap:
4503 if (flag & BOARD_MEMMAP)
4504 iounmap((void *)mega_baseport);
4505 out_release_region:
4506 if (flag & BOARD_MEMMAP)
4507 release_mem_region(tbase, 128);
4508 else
4509 release_region(mega_baseport, 16);
4510 out_disable_device:
4511 pci_disable_device(pdev);
4512 out:
4513 return error;
4514}
4515
4516static void
4517__megaraid_shutdown(adapter_t *adapter)
4518{
4519 u_char raw_mbox[sizeof(struct mbox_out)];
4520 mbox_t *mbox = (mbox_t *)raw_mbox;
4521 int i;
4522
4523
4524 memset(&mbox->m_out, 0, sizeof(raw_mbox));
4525 raw_mbox[0] = FLUSH_ADAPTER;
4526
4527 free_irq(adapter->host->irq, adapter);
4528
4529
4530 issue_scb_block(adapter, raw_mbox);
4531
4532
4533 memset(&mbox->m_out, 0, sizeof(raw_mbox));
4534 raw_mbox[0] = FLUSH_SYSTEM;
4535
4536
4537 issue_scb_block(adapter, raw_mbox);
4538
4539 if (atomic_read(&adapter->pend_cmds) > 0)
4540 dev_warn(&adapter->dev->dev, "pending commands!!\n");
4541
4542
4543
4544
4545
4546 for (i = 0; i <= 10; i++)
4547 mdelay(1000);
4548}
4549
4550static void
4551megaraid_remove_one(struct pci_dev *pdev)
4552{
4553 struct Scsi_Host *host = pci_get_drvdata(pdev);
4554 adapter_t *adapter = (adapter_t *)host->hostdata;
4555 char buf[12] = { 0 };
4556
4557 scsi_remove_host(host);
4558
4559 __megaraid_shutdown(adapter);
4560
4561
4562 if (adapter->flag & BOARD_MEMMAP) {
4563 iounmap((void *)adapter->base);
4564 release_mem_region(adapter->host->base, 128);
4565 } else
4566 release_region(adapter->base, 16);
4567
4568 mega_free_sgl(adapter);
4569
4570 sprintf(buf, "hba%d", adapter->host->host_no);
4571 remove_proc_subtree(buf, mega_proc_dir_entry);
4572
4573 pci_free_consistent(adapter->dev, MEGA_BUFFER_SIZE,
4574 adapter->mega_buffer, adapter->buf_dma_handle);
4575 kfree(adapter->scb_list);
4576 pci_free_consistent(adapter->dev, sizeof(mbox64_t),
4577 adapter->una_mbox64, adapter->una_mbox64_dma);
4578
4579 scsi_host_put(host);
4580 pci_disable_device(pdev);
4581
4582 hba_count--;
4583}
4584
4585static void
4586megaraid_shutdown(struct pci_dev *pdev)
4587{
4588 struct Scsi_Host *host = pci_get_drvdata(pdev);
4589 adapter_t *adapter = (adapter_t *)host->hostdata;
4590
4591 __megaraid_shutdown(adapter);
4592}
4593
4594static struct pci_device_id megaraid_pci_tbl[] = {
4595 {PCI_VENDOR_ID_AMI, PCI_DEVICE_ID_AMI_MEGARAID,
4596 PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
4597 {PCI_VENDOR_ID_AMI, PCI_DEVICE_ID_AMI_MEGARAID2,
4598 PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
4599 {PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_AMI_MEGARAID3,
4600 PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
4601 {0,}
4602};
4603MODULE_DEVICE_TABLE(pci, megaraid_pci_tbl);
4604
4605static struct pci_driver megaraid_pci_driver = {
4606 .name = "megaraid_legacy",
4607 .id_table = megaraid_pci_tbl,
4608 .probe = megaraid_probe_one,
4609 .remove = megaraid_remove_one,
4610 .shutdown = megaraid_shutdown,
4611};
4612
4613static int __init megaraid_init(void)
4614{
4615 int error;
4616
4617 if ((max_cmd_per_lun <= 0) || (max_cmd_per_lun > MAX_CMD_PER_LUN))
4618 max_cmd_per_lun = MAX_CMD_PER_LUN;
4619 if (max_mbox_busy_wait > MBOX_BUSY_WAIT)
4620 max_mbox_busy_wait = MBOX_BUSY_WAIT;
4621
4622#ifdef CONFIG_PROC_FS
4623 mega_proc_dir_entry = proc_mkdir("megaraid", NULL);
4624 if (!mega_proc_dir_entry) {
4625 printk(KERN_WARNING
4626 "megaraid: failed to create megaraid root\n");
4627 }
4628#endif
4629 error = pci_register_driver(&megaraid_pci_driver);
4630 if (error) {
4631#ifdef CONFIG_PROC_FS
4632 remove_proc_entry("megaraid", NULL);
4633#endif
4634 return error;
4635 }
4636
4637
4638
4639
4640
4641
4642
4643 major = register_chrdev(0, "megadev_legacy", &megadev_fops);
4644 if (!major) {
4645 printk(KERN_WARNING
4646 "megaraid: failed to register char device\n");
4647 }
4648
4649 return 0;
4650}
4651
4652static void __exit megaraid_exit(void)
4653{
4654
4655
4656
4657 unregister_chrdev(major, "megadev_legacy");
4658
4659 pci_unregister_driver(&megaraid_pci_driver);
4660
4661#ifdef CONFIG_PROC_FS
4662 remove_proc_entry("megaraid", NULL);
4663#endif
4664}
4665
4666module_init(megaraid_init);
4667module_exit(megaraid_exit);
4668
4669
4670