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73#include <linux/slab.h>
74#include <linux/module.h>
75#include "megaraid_mbox.h"
76
77static int megaraid_init(void);
78static void megaraid_exit(void);
79
80static int megaraid_probe_one(struct pci_dev*, const struct pci_device_id *);
81static void megaraid_detach_one(struct pci_dev *);
82static void megaraid_mbox_shutdown(struct pci_dev *);
83
84static int megaraid_io_attach(adapter_t *);
85static void megaraid_io_detach(adapter_t *);
86
87static int megaraid_init_mbox(adapter_t *);
88static void megaraid_fini_mbox(adapter_t *);
89
90static int megaraid_alloc_cmd_packets(adapter_t *);
91static void megaraid_free_cmd_packets(adapter_t *);
92
93static int megaraid_mbox_setup_dma_pools(adapter_t *);
94static void megaraid_mbox_teardown_dma_pools(adapter_t *);
95
96static int megaraid_sysfs_alloc_resources(adapter_t *);
97static void megaraid_sysfs_free_resources(adapter_t *);
98
99static int megaraid_abort_handler(struct scsi_cmnd *);
100static int megaraid_reset_handler(struct scsi_cmnd *);
101
102static int mbox_post_sync_cmd(adapter_t *, uint8_t []);
103static int mbox_post_sync_cmd_fast(adapter_t *, uint8_t []);
104static int megaraid_busywait_mbox(mraid_device_t *);
105static int megaraid_mbox_product_info(adapter_t *);
106static int megaraid_mbox_extended_cdb(adapter_t *);
107static int megaraid_mbox_support_ha(adapter_t *, uint16_t *);
108static int megaraid_mbox_support_random_del(adapter_t *);
109static int megaraid_mbox_get_max_sg(adapter_t *);
110static void megaraid_mbox_enum_raid_scsi(adapter_t *);
111static void megaraid_mbox_flush_cache(adapter_t *);
112static int megaraid_mbox_fire_sync_cmd(adapter_t *);
113
114static void megaraid_mbox_display_scb(adapter_t *, scb_t *);
115static void megaraid_mbox_setup_device_map(adapter_t *);
116
117static int megaraid_queue_command(struct Scsi_Host *, struct scsi_cmnd *);
118static scb_t *megaraid_mbox_build_cmd(adapter_t *, struct scsi_cmnd *, int *);
119static void megaraid_mbox_runpendq(adapter_t *, scb_t *);
120static void megaraid_mbox_prepare_pthru(adapter_t *, scb_t *,
121 struct scsi_cmnd *);
122static void megaraid_mbox_prepare_epthru(adapter_t *, scb_t *,
123 struct scsi_cmnd *);
124
125static irqreturn_t megaraid_isr(int, void *);
126
127static void megaraid_mbox_dpc(unsigned long);
128
129static ssize_t megaraid_sysfs_show_app_hndl(struct device *, struct device_attribute *attr, char *);
130static ssize_t megaraid_sysfs_show_ldnum(struct device *, struct device_attribute *attr, char *);
131
132static int megaraid_cmm_register(adapter_t *);
133static int megaraid_cmm_unregister(adapter_t *);
134static int megaraid_mbox_mm_handler(unsigned long, uioc_t *, uint32_t);
135static int megaraid_mbox_mm_command(adapter_t *, uioc_t *);
136static void megaraid_mbox_mm_done(adapter_t *, scb_t *);
137static int gather_hbainfo(adapter_t *, mraid_hba_info_t *);
138static int wait_till_fw_empty(adapter_t *);
139
140
141
142MODULE_AUTHOR("megaraidlinux@lsi.com");
143MODULE_DESCRIPTION("LSI Logic MegaRAID Mailbox Driver");
144MODULE_LICENSE("GPL");
145MODULE_VERSION(MEGARAID_VERSION);
146
147
148
149
150
151
152
153
154static int megaraid_expose_unconf_disks = 0;
155module_param_named(unconf_disks, megaraid_expose_unconf_disks, int, 0);
156MODULE_PARM_DESC(unconf_disks,
157 "Set to expose unconfigured disks to kernel (default=0)");
158
159
160
161
162static unsigned int max_mbox_busy_wait = MBOX_BUSY_WAIT;
163module_param_named(busy_wait, max_mbox_busy_wait, int, 0);
164MODULE_PARM_DESC(busy_wait,
165 "Max wait for mailbox in microseconds if busy (default=10)");
166
167
168
169
170static unsigned int megaraid_max_sectors = MBOX_MAX_SECTORS;
171module_param_named(max_sectors, megaraid_max_sectors, int, 0);
172MODULE_PARM_DESC(max_sectors,
173 "Maximum number of sectors per IO command (default=128)");
174
175
176
177
178static unsigned int megaraid_cmd_per_lun = MBOX_DEF_CMD_PER_LUN;
179module_param_named(cmd_per_lun, megaraid_cmd_per_lun, int, 0);
180MODULE_PARM_DESC(cmd_per_lun,
181 "Maximum number of commands per logical unit (default=64)");
182
183
184
185
186
187
188
189static unsigned int megaraid_fast_load = 0;
190module_param_named(fast_load, megaraid_fast_load, int, 0);
191MODULE_PARM_DESC(fast_load,
192 "Faster loading of the driver, skips physical devices! (default=0)");
193
194
195
196
197
198
199
200int mraid_debug_level = CL_ANN;
201module_param_named(debug_level, mraid_debug_level, int, 0);
202MODULE_PARM_DESC(debug_level, "Debug level for driver (default=0)");
203
204
205
206
207static uint8_t megaraid_mbox_version[8] =
208 { 0x02, 0x20, 0x04, 0x06, 3, 7, 20, 5 };
209
210
211
212
213
214static struct pci_device_id pci_id_table_g[] = {
215 {
216 PCI_VENDOR_ID_DELL,
217 PCI_DEVICE_ID_PERC4_DI_DISCOVERY,
218 PCI_VENDOR_ID_DELL,
219 PCI_SUBSYS_ID_PERC4_DI_DISCOVERY,
220 },
221 {
222 PCI_VENDOR_ID_LSI_LOGIC,
223 PCI_DEVICE_ID_PERC4_SC,
224 PCI_VENDOR_ID_DELL,
225 PCI_SUBSYS_ID_PERC4_SC,
226 },
227 {
228 PCI_VENDOR_ID_LSI_LOGIC,
229 PCI_DEVICE_ID_PERC4_DC,
230 PCI_VENDOR_ID_DELL,
231 PCI_SUBSYS_ID_PERC4_DC,
232 },
233 {
234 PCI_VENDOR_ID_LSI_LOGIC,
235 PCI_DEVICE_ID_VERDE,
236 PCI_ANY_ID,
237 PCI_ANY_ID,
238 },
239 {
240 PCI_VENDOR_ID_DELL,
241 PCI_DEVICE_ID_PERC4_DI_EVERGLADES,
242 PCI_VENDOR_ID_DELL,
243 PCI_SUBSYS_ID_PERC4_DI_EVERGLADES,
244 },
245 {
246 PCI_VENDOR_ID_DELL,
247 PCI_DEVICE_ID_PERC4E_SI_BIGBEND,
248 PCI_VENDOR_ID_DELL,
249 PCI_SUBSYS_ID_PERC4E_SI_BIGBEND,
250 },
251 {
252 PCI_VENDOR_ID_DELL,
253 PCI_DEVICE_ID_PERC4E_DI_KOBUK,
254 PCI_VENDOR_ID_DELL,
255 PCI_SUBSYS_ID_PERC4E_DI_KOBUK,
256 },
257 {
258 PCI_VENDOR_ID_DELL,
259 PCI_DEVICE_ID_PERC4E_DI_CORVETTE,
260 PCI_VENDOR_ID_DELL,
261 PCI_SUBSYS_ID_PERC4E_DI_CORVETTE,
262 },
263 {
264 PCI_VENDOR_ID_DELL,
265 PCI_DEVICE_ID_PERC4E_DI_EXPEDITION,
266 PCI_VENDOR_ID_DELL,
267 PCI_SUBSYS_ID_PERC4E_DI_EXPEDITION,
268 },
269 {
270 PCI_VENDOR_ID_DELL,
271 PCI_DEVICE_ID_PERC4E_DI_GUADALUPE,
272 PCI_VENDOR_ID_DELL,
273 PCI_SUBSYS_ID_PERC4E_DI_GUADALUPE,
274 },
275 {
276 PCI_VENDOR_ID_LSI_LOGIC,
277 PCI_DEVICE_ID_DOBSON,
278 PCI_ANY_ID,
279 PCI_ANY_ID,
280 },
281 {
282 PCI_VENDOR_ID_AMI,
283 PCI_DEVICE_ID_AMI_MEGARAID3,
284 PCI_ANY_ID,
285 PCI_ANY_ID,
286 },
287 {
288 PCI_VENDOR_ID_LSI_LOGIC,
289 PCI_DEVICE_ID_AMI_MEGARAID3,
290 PCI_ANY_ID,
291 PCI_ANY_ID,
292 },
293 {
294 PCI_VENDOR_ID_LSI_LOGIC,
295 PCI_DEVICE_ID_LINDSAY,
296 PCI_ANY_ID,
297 PCI_ANY_ID,
298 },
299 {0}
300};
301MODULE_DEVICE_TABLE(pci, pci_id_table_g);
302
303
304static struct pci_driver megaraid_pci_driver = {
305 .name = "megaraid",
306 .id_table = pci_id_table_g,
307 .probe = megaraid_probe_one,
308 .remove = megaraid_detach_one,
309 .shutdown = megaraid_mbox_shutdown,
310};
311
312
313
314
315
316
317DEVICE_ATTR(megaraid_mbox_app_hndl, S_IRUSR, megaraid_sysfs_show_app_hndl,
318 NULL);
319
320
321static struct device_attribute *megaraid_shost_attrs[] = {
322 &dev_attr_megaraid_mbox_app_hndl,
323 NULL,
324};
325
326
327DEVICE_ATTR(megaraid_mbox_ld, S_IRUSR, megaraid_sysfs_show_ldnum, NULL);
328
329
330static struct device_attribute *megaraid_sdev_attrs[] = {
331 &dev_attr_megaraid_mbox_ld,
332 NULL,
333};
334
335
336
337
338static struct scsi_host_template megaraid_template_g = {
339 .module = THIS_MODULE,
340 .name = "LSI Logic MegaRAID driver",
341 .proc_name = "megaraid",
342 .queuecommand = megaraid_queue_command,
343 .eh_abort_handler = megaraid_abort_handler,
344 .eh_host_reset_handler = megaraid_reset_handler,
345 .change_queue_depth = scsi_change_queue_depth,
346 .use_clustering = ENABLE_CLUSTERING,
347 .no_write_same = 1,
348 .sdev_attrs = megaraid_sdev_attrs,
349 .shost_attrs = megaraid_shost_attrs,
350};
351
352
353
354
355
356
357
358
359static int __init
360megaraid_init(void)
361{
362 int rval;
363
364
365 con_log(CL_ANN, (KERN_INFO "megaraid: %s %s\n", MEGARAID_VERSION,
366 MEGARAID_EXT_VERSION));
367
368
369 if (megaraid_cmd_per_lun > MBOX_MAX_SCSI_CMDS) {
370
371 con_log(CL_ANN, (KERN_WARNING
372 "megaraid mailbox: max commands per lun reset to %d\n",
373 MBOX_MAX_SCSI_CMDS));
374
375 megaraid_cmd_per_lun = MBOX_MAX_SCSI_CMDS;
376 }
377
378
379
380 rval = pci_register_driver(&megaraid_pci_driver);
381 if (rval < 0) {
382 con_log(CL_ANN, (KERN_WARNING
383 "megaraid: could not register hotplug support.\n"));
384 }
385
386 return rval;
387}
388
389
390
391
392
393
394
395static void __exit
396megaraid_exit(void)
397{
398 con_log(CL_DLEVEL1, (KERN_NOTICE "megaraid: unloading framework\n"));
399
400
401 pci_unregister_driver(&megaraid_pci_driver);
402
403 return;
404}
405
406
407
408
409
410
411
412
413
414
415static int
416megaraid_probe_one(struct pci_dev *pdev, const struct pci_device_id *id)
417{
418 adapter_t *adapter;
419
420
421
422 con_log(CL_ANN, (KERN_INFO
423 "megaraid: probe new device %#4.04x:%#4.04x:%#4.04x:%#4.04x: ",
424 pdev->vendor, pdev->device, pdev->subsystem_vendor,
425 pdev->subsystem_device));
426
427 con_log(CL_ANN, ("bus %d:slot %d:func %d\n", pdev->bus->number,
428 PCI_SLOT(pdev->devfn), PCI_FUNC(pdev->devfn)));
429
430 if (pci_enable_device(pdev)) {
431 con_log(CL_ANN, (KERN_WARNING
432 "megaraid: pci_enable_device failed\n"));
433
434 return -ENODEV;
435 }
436
437
438 pci_set_master(pdev);
439
440
441 adapter = kzalloc(sizeof(adapter_t), GFP_KERNEL);
442
443 if (adapter == NULL) {
444 con_log(CL_ANN, (KERN_WARNING
445 "megaraid: out of memory, %s %d.\n", __func__, __LINE__));
446
447 goto out_probe_one;
448 }
449
450
451
452 adapter->unique_id = pdev->bus->number << 8 | pdev->devfn;
453 adapter->irq = pdev->irq;
454 adapter->pdev = pdev;
455
456 atomic_set(&adapter->being_detached, 0);
457
458
459
460 if (pci_set_dma_mask(adapter->pdev, DMA_BIT_MASK(32)) != 0) {
461
462 con_log(CL_ANN, (KERN_WARNING
463 "megaraid: pci_set_dma_mask failed:%d\n", __LINE__));
464
465 goto out_free_adapter;
466 }
467
468
469
470 spin_lock_init(&adapter->lock);
471
472
473
474 INIT_LIST_HEAD(&adapter->kscb_pool);
475 spin_lock_init(SCSI_FREE_LIST_LOCK(adapter));
476
477 INIT_LIST_HEAD(&adapter->pend_list);
478 spin_lock_init(PENDING_LIST_LOCK(adapter));
479
480 INIT_LIST_HEAD(&adapter->completed_list);
481 spin_lock_init(COMPLETED_LIST_LOCK(adapter));
482
483
484
485 if (megaraid_init_mbox(adapter) != 0) {
486 con_log(CL_ANN, (KERN_WARNING
487 "megaraid: maibox adapter did not initialize\n"));
488
489 goto out_free_adapter;
490 }
491
492
493 if (megaraid_cmm_register(adapter) != 0) {
494
495 con_log(CL_ANN, (KERN_WARNING
496 "megaraid: could not register with management module\n"));
497
498 goto out_fini_mbox;
499 }
500
501
502 pci_set_drvdata(pdev, adapter);
503
504
505 if (megaraid_io_attach(adapter) != 0) {
506
507 con_log(CL_ANN, (KERN_WARNING "megaraid: io attach failed\n"));
508
509 goto out_cmm_unreg;
510 }
511
512 return 0;
513
514out_cmm_unreg:
515 megaraid_cmm_unregister(adapter);
516out_fini_mbox:
517 megaraid_fini_mbox(adapter);
518out_free_adapter:
519 kfree(adapter);
520out_probe_one:
521 pci_disable_device(pdev);
522
523 return -ENODEV;
524}
525
526
527
528
529
530
531
532
533
534
535
536
537static void
538megaraid_detach_one(struct pci_dev *pdev)
539{
540 adapter_t *adapter;
541 struct Scsi_Host *host;
542
543
544
545 adapter = pci_get_drvdata(pdev);
546
547 if (!adapter) {
548 con_log(CL_ANN, (KERN_CRIT
549 "megaraid: Invalid detach on %#4.04x:%#4.04x:%#4.04x:%#4.04x\n",
550 pdev->vendor, pdev->device, pdev->subsystem_vendor,
551 pdev->subsystem_device));
552
553 return;
554 }
555 else {
556 con_log(CL_ANN, (KERN_NOTICE
557 "megaraid: detaching device %#4.04x:%#4.04x:%#4.04x:%#4.04x\n",
558 pdev->vendor, pdev->device, pdev->subsystem_vendor,
559 pdev->subsystem_device));
560 }
561
562
563 host = adapter->host;
564
565
566
567
568
569 atomic_set(&adapter->being_detached, 1);
570
571
572 megaraid_io_detach(adapter);
573
574
575
576
577
578 megaraid_cmm_unregister(adapter);
579
580
581 megaraid_fini_mbox(adapter);
582
583 kfree(adapter);
584
585 scsi_host_put(host);
586
587 pci_disable_device(pdev);
588
589 return;
590}
591
592
593
594
595
596
597
598
599static void
600megaraid_mbox_shutdown(struct pci_dev *pdev)
601{
602 adapter_t *adapter = pci_get_drvdata(pdev);
603 static int counter;
604
605 if (!adapter) {
606 con_log(CL_ANN, (KERN_WARNING
607 "megaraid: null device in shutdown\n"));
608 return;
609 }
610
611
612 con_log(CL_ANN, (KERN_INFO "megaraid: flushing adapter %d...",
613 counter++));
614
615 megaraid_mbox_flush_cache(adapter);
616
617 con_log(CL_ANN, ("done\n"));
618}
619
620
621
622
623
624
625
626
627static int
628megaraid_io_attach(adapter_t *adapter)
629{
630 struct Scsi_Host *host;
631
632
633 host = scsi_host_alloc(&megaraid_template_g, 8);
634 if (!host) {
635 con_log(CL_ANN, (KERN_WARNING
636 "megaraid mbox: scsi_register failed\n"));
637
638 return -1;
639 }
640
641 SCSIHOST2ADAP(host) = (caddr_t)adapter;
642 adapter->host = host;
643
644 host->irq = adapter->irq;
645 host->unique_id = adapter->unique_id;
646 host->can_queue = adapter->max_cmds;
647 host->this_id = adapter->init_id;
648 host->sg_tablesize = adapter->sglen;
649 host->max_sectors = adapter->max_sectors;
650 host->cmd_per_lun = adapter->cmd_per_lun;
651 host->max_channel = adapter->max_channel;
652 host->max_id = adapter->max_target;
653 host->max_lun = adapter->max_lun;
654
655
656
657 if (scsi_add_host(host, &adapter->pdev->dev)) {
658
659 con_log(CL_ANN, (KERN_WARNING
660 "megaraid mbox: scsi_add_host failed\n"));
661
662 scsi_host_put(host);
663
664 return -1;
665 }
666
667 scsi_scan_host(host);
668
669 return 0;
670}
671
672
673
674
675
676
677
678
679static void
680megaraid_io_detach(adapter_t *adapter)
681{
682 struct Scsi_Host *host;
683
684 con_log(CL_DLEVEL1, (KERN_INFO "megaraid: io detach\n"));
685
686 host = adapter->host;
687
688 scsi_remove_host(host);
689
690 return;
691}
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710static int
711megaraid_init_mbox(adapter_t *adapter)
712{
713 struct pci_dev *pdev;
714 mraid_device_t *raid_dev;
715 int i;
716 uint32_t magic64;
717
718
719 adapter->ito = MBOX_TIMEOUT;
720 pdev = adapter->pdev;
721
722
723
724
725
726 raid_dev = kzalloc(sizeof(mraid_device_t), GFP_KERNEL);
727 if (raid_dev == NULL) return -1;
728
729
730
731
732
733 adapter->raid_device = (caddr_t)raid_dev;
734 raid_dev->fast_load = megaraid_fast_load;
735
736
737
738 raid_dev->baseport = pci_resource_start(pdev, 0);
739
740 if (pci_request_regions(pdev, "MegaRAID: LSI Logic Corporation") != 0) {
741
742 con_log(CL_ANN, (KERN_WARNING
743 "megaraid: mem region busy\n"));
744
745 goto out_free_raid_dev;
746 }
747
748 raid_dev->baseaddr = ioremap_nocache(raid_dev->baseport, 128);
749
750 if (!raid_dev->baseaddr) {
751
752 con_log(CL_ANN, (KERN_WARNING
753 "megaraid: could not map hba memory\n") );
754
755 goto out_release_regions;
756 }
757
758
759 spin_lock_init(&raid_dev->mailbox_lock);
760
761
762 if (megaraid_alloc_cmd_packets(adapter) != 0)
763 goto out_iounmap;
764
765
766
767
768
769
770 if (megaraid_mbox_fire_sync_cmd(adapter))
771 con_log(CL_ANN, ("megaraid: sync cmd failed\n"));
772
773
774
775
776
777
778
779 if (request_irq(adapter->irq, megaraid_isr, IRQF_SHARED, "megaraid",
780 adapter)) {
781
782 con_log(CL_ANN, (KERN_WARNING
783 "megaraid: Couldn't register IRQ %d!\n", adapter->irq));
784 goto out_alloc_cmds;
785
786 }
787
788
789 if (megaraid_mbox_product_info(adapter) != 0)
790 goto out_free_irq;
791
792
793 adapter->max_cdb_sz = 10;
794 if (megaraid_mbox_extended_cdb(adapter) == 0) {
795 adapter->max_cdb_sz = 16;
796 }
797
798
799
800
801
802
803
804 adapter->ha = 0;
805 adapter->init_id = -1;
806 if (megaraid_mbox_support_ha(adapter, &adapter->init_id) == 0) {
807 adapter->ha = 1;
808 }
809
810
811
812
813
814
815
816 megaraid_mbox_setup_device_map(adapter);
817
818
819 if (megaraid_mbox_support_random_del(adapter)) {
820
821
822
823
824 for (i = 0; i <= MAX_LOGICAL_DRIVES_40LD; i++) {
825 adapter->device_ids[adapter->max_channel][i] += 0x80;
826 }
827 adapter->device_ids[adapter->max_channel][adapter->init_id] =
828 0xFF;
829
830 raid_dev->random_del_supported = 1;
831 }
832
833
834
835
836
837 adapter->sglen = megaraid_mbox_get_max_sg(adapter);
838
839
840
841 megaraid_mbox_enum_raid_scsi(adapter);
842
843
844
845
846
847
848 adapter->max_sectors = megaraid_max_sectors;
849
850
851
852
853 adapter->cmd_per_lun = megaraid_cmd_per_lun;
854
855
856
857
858
859 if (megaraid_sysfs_alloc_resources(adapter) != 0)
860 goto out_free_irq;
861
862
863
864 pci_read_config_dword(adapter->pdev, PCI_CONF_AMISIG64, &magic64);
865
866 if (((magic64 == HBA_SIGNATURE_64_BIT) &&
867 ((adapter->pdev->subsystem_device !=
868 PCI_SUBSYS_ID_MEGARAID_SATA_150_6) &&
869 (adapter->pdev->subsystem_device !=
870 PCI_SUBSYS_ID_MEGARAID_SATA_150_4))) ||
871 (adapter->pdev->vendor == PCI_VENDOR_ID_LSI_LOGIC &&
872 adapter->pdev->device == PCI_DEVICE_ID_VERDE) ||
873 (adapter->pdev->vendor == PCI_VENDOR_ID_LSI_LOGIC &&
874 adapter->pdev->device == PCI_DEVICE_ID_DOBSON) ||
875 (adapter->pdev->vendor == PCI_VENDOR_ID_LSI_LOGIC &&
876 adapter->pdev->device == PCI_DEVICE_ID_LINDSAY) ||
877 (adapter->pdev->vendor == PCI_VENDOR_ID_DELL &&
878 adapter->pdev->device == PCI_DEVICE_ID_PERC4_DI_EVERGLADES) ||
879 (adapter->pdev->vendor == PCI_VENDOR_ID_DELL &&
880 adapter->pdev->device == PCI_DEVICE_ID_PERC4E_DI_KOBUK)) {
881 if (pci_set_dma_mask(adapter->pdev, DMA_BIT_MASK(64))) {
882 con_log(CL_ANN, (KERN_WARNING
883 "megaraid: DMA mask for 64-bit failed\n"));
884
885 if (pci_set_dma_mask (adapter->pdev, DMA_BIT_MASK(32))) {
886 con_log(CL_ANN, (KERN_WARNING
887 "megaraid: 32-bit DMA mask failed\n"));
888 goto out_free_sysfs_res;
889 }
890 }
891 }
892
893
894 tasklet_init(&adapter->dpc_h, megaraid_mbox_dpc,
895 (unsigned long)adapter);
896
897 con_log(CL_DLEVEL1, (KERN_INFO
898 "megaraid mbox hba successfully initialized\n"));
899
900 return 0;
901
902out_free_sysfs_res:
903 megaraid_sysfs_free_resources(adapter);
904out_free_irq:
905 free_irq(adapter->irq, adapter);
906out_alloc_cmds:
907 megaraid_free_cmd_packets(adapter);
908out_iounmap:
909 iounmap(raid_dev->baseaddr);
910out_release_regions:
911 pci_release_regions(pdev);
912out_free_raid_dev:
913 kfree(raid_dev);
914
915 return -1;
916}
917
918
919
920
921
922
923static void
924megaraid_fini_mbox(adapter_t *adapter)
925{
926 mraid_device_t *raid_dev = ADAP2RAIDDEV(adapter);
927
928
929 megaraid_mbox_flush_cache(adapter);
930
931 tasklet_kill(&adapter->dpc_h);
932
933 megaraid_sysfs_free_resources(adapter);
934
935 megaraid_free_cmd_packets(adapter);
936
937 free_irq(adapter->irq, adapter);
938
939 iounmap(raid_dev->baseaddr);
940
941 pci_release_regions(adapter->pdev);
942
943 kfree(raid_dev);
944
945 return;
946}
947
948
949
950
951
952
953
954
955
956
957
958static int
959megaraid_alloc_cmd_packets(adapter_t *adapter)
960{
961 mraid_device_t *raid_dev = ADAP2RAIDDEV(adapter);
962 struct pci_dev *pdev;
963 unsigned long align;
964 scb_t *scb;
965 mbox_ccb_t *ccb;
966 struct mraid_pci_blk *epthru_pci_blk;
967 struct mraid_pci_blk *sg_pci_blk;
968 struct mraid_pci_blk *mbox_pci_blk;
969 int i;
970
971 pdev = adapter->pdev;
972
973
974
975
976
977
978 raid_dev->una_mbox64 = pci_zalloc_consistent(adapter->pdev,
979 sizeof(mbox64_t),
980 &raid_dev->una_mbox64_dma);
981
982 if (!raid_dev->una_mbox64) {
983 con_log(CL_ANN, (KERN_WARNING
984 "megaraid: out of memory, %s %d\n", __func__,
985 __LINE__));
986 return -1;
987 }
988
989
990
991
992 raid_dev->mbox = &raid_dev->una_mbox64->mbox32;
993
994 raid_dev->mbox = (mbox_t *)((((unsigned long)raid_dev->mbox) + 15) &
995 (~0UL ^ 0xFUL));
996
997 raid_dev->mbox64 = (mbox64_t *)(((unsigned long)raid_dev->mbox) - 8);
998
999 align = ((void *)raid_dev->mbox -
1000 ((void *)&raid_dev->una_mbox64->mbox32));
1001
1002 raid_dev->mbox_dma = (unsigned long)raid_dev->una_mbox64_dma + 8 +
1003 align;
1004
1005
1006 adapter->ibuf = pci_zalloc_consistent(pdev, MBOX_IBUF_SIZE,
1007 &adapter->ibuf_dma_h);
1008 if (!adapter->ibuf) {
1009
1010 con_log(CL_ANN, (KERN_WARNING
1011 "megaraid: out of memory, %s %d\n", __func__,
1012 __LINE__));
1013
1014 goto out_free_common_mbox;
1015 }
1016
1017
1018
1019
1020
1021
1022
1023
1024
1025
1026
1027
1028 adapter->kscb_list = kcalloc(MBOX_MAX_SCSI_CMDS, sizeof(scb_t), GFP_KERNEL);
1029
1030 if (adapter->kscb_list == NULL) {
1031 con_log(CL_ANN, (KERN_WARNING
1032 "megaraid: out of memory, %s %d\n", __func__,
1033 __LINE__));
1034 goto out_free_ibuf;
1035 }
1036
1037
1038 if (megaraid_mbox_setup_dma_pools(adapter) != 0) {
1039 con_log(CL_ANN, (KERN_WARNING
1040 "megaraid: out of memory, %s %d\n", __func__,
1041 __LINE__));
1042 goto out_free_scb_list;
1043 }
1044
1045
1046 epthru_pci_blk = raid_dev->epthru_pool;
1047 sg_pci_blk = raid_dev->sg_pool;
1048 mbox_pci_blk = raid_dev->mbox_pool;
1049
1050 for (i = 0; i < MBOX_MAX_SCSI_CMDS; i++) {
1051 scb = adapter->kscb_list + i;
1052 ccb = raid_dev->ccb_list + i;
1053
1054 ccb->mbox = (mbox_t *)(mbox_pci_blk[i].vaddr + 16);
1055 ccb->raw_mbox = (uint8_t *)ccb->mbox;
1056 ccb->mbox64 = (mbox64_t *)(mbox_pci_blk[i].vaddr + 8);
1057 ccb->mbox_dma_h = (unsigned long)mbox_pci_blk[i].dma_addr + 16;
1058
1059
1060 if (ccb->mbox_dma_h & 0x0F) {
1061 con_log(CL_ANN, (KERN_CRIT
1062 "megaraid mbox: not aligned on 16-bytes\n"));
1063
1064 goto out_teardown_dma_pools;
1065 }
1066
1067 ccb->epthru = (mraid_epassthru_t *)
1068 epthru_pci_blk[i].vaddr;
1069 ccb->epthru_dma_h = epthru_pci_blk[i].dma_addr;
1070 ccb->pthru = (mraid_passthru_t *)ccb->epthru;
1071 ccb->pthru_dma_h = ccb->epthru_dma_h;
1072
1073
1074 ccb->sgl64 = (mbox_sgl64 *)sg_pci_blk[i].vaddr;
1075 ccb->sgl_dma_h = sg_pci_blk[i].dma_addr;
1076 ccb->sgl32 = (mbox_sgl32 *)ccb->sgl64;
1077
1078 scb->ccb = (caddr_t)ccb;
1079 scb->gp = 0;
1080
1081 scb->sno = i;
1082
1083 scb->scp = NULL;
1084 scb->state = SCB_FREE;
1085 scb->dma_direction = PCI_DMA_NONE;
1086 scb->dma_type = MRAID_DMA_NONE;
1087 scb->dev_channel = -1;
1088 scb->dev_target = -1;
1089
1090
1091 list_add_tail(&scb->list, &adapter->kscb_pool);
1092 }
1093
1094 return 0;
1095
1096out_teardown_dma_pools:
1097 megaraid_mbox_teardown_dma_pools(adapter);
1098out_free_scb_list:
1099 kfree(adapter->kscb_list);
1100out_free_ibuf:
1101 pci_free_consistent(pdev, MBOX_IBUF_SIZE, (void *)adapter->ibuf,
1102 adapter->ibuf_dma_h);
1103out_free_common_mbox:
1104 pci_free_consistent(adapter->pdev, sizeof(mbox64_t),
1105 (caddr_t)raid_dev->una_mbox64, raid_dev->una_mbox64_dma);
1106
1107 return -1;
1108}
1109
1110
1111
1112
1113
1114
1115
1116
1117static void
1118megaraid_free_cmd_packets(adapter_t *adapter)
1119{
1120 mraid_device_t *raid_dev = ADAP2RAIDDEV(adapter);
1121
1122 megaraid_mbox_teardown_dma_pools(adapter);
1123
1124 kfree(adapter->kscb_list);
1125
1126 pci_free_consistent(adapter->pdev, MBOX_IBUF_SIZE,
1127 (void *)adapter->ibuf, adapter->ibuf_dma_h);
1128
1129 pci_free_consistent(adapter->pdev, sizeof(mbox64_t),
1130 (caddr_t)raid_dev->una_mbox64, raid_dev->una_mbox64_dma);
1131 return;
1132}
1133
1134
1135
1136
1137
1138
1139
1140
1141
1142static int
1143megaraid_mbox_setup_dma_pools(adapter_t *adapter)
1144{
1145 mraid_device_t *raid_dev = ADAP2RAIDDEV(adapter);
1146 struct mraid_pci_blk *epthru_pci_blk;
1147 struct mraid_pci_blk *sg_pci_blk;
1148 struct mraid_pci_blk *mbox_pci_blk;
1149 int i;
1150
1151
1152
1153
1154 raid_dev->mbox_pool_handle = dma_pool_create("megaraid mbox pool",
1155 &adapter->pdev->dev,
1156 sizeof(mbox64_t) + 16,
1157 16, 0);
1158
1159 if (raid_dev->mbox_pool_handle == NULL) {
1160 goto fail_setup_dma_pool;
1161 }
1162
1163 mbox_pci_blk = raid_dev->mbox_pool;
1164 for (i = 0; i < MBOX_MAX_SCSI_CMDS; i++) {
1165 mbox_pci_blk[i].vaddr = dma_pool_alloc(
1166 raid_dev->mbox_pool_handle,
1167 GFP_KERNEL,
1168 &mbox_pci_blk[i].dma_addr);
1169 if (!mbox_pci_blk[i].vaddr) {
1170 goto fail_setup_dma_pool;
1171 }
1172 }
1173
1174
1175
1176
1177
1178
1179
1180
1181
1182 raid_dev->epthru_pool_handle = dma_pool_create("megaraid mbox pthru",
1183 &adapter->pdev->dev, sizeof(mraid_epassthru_t), 128, 0);
1184
1185 if (raid_dev->epthru_pool_handle == NULL) {
1186 goto fail_setup_dma_pool;
1187 }
1188
1189 epthru_pci_blk = raid_dev->epthru_pool;
1190 for (i = 0; i < MBOX_MAX_SCSI_CMDS; i++) {
1191 epthru_pci_blk[i].vaddr = dma_pool_alloc(
1192 raid_dev->epthru_pool_handle,
1193 GFP_KERNEL,
1194 &epthru_pci_blk[i].dma_addr);
1195 if (!epthru_pci_blk[i].vaddr) {
1196 goto fail_setup_dma_pool;
1197 }
1198 }
1199
1200
1201
1202
1203 raid_dev->sg_pool_handle = dma_pool_create("megaraid mbox sg",
1204 &adapter->pdev->dev,
1205 sizeof(mbox_sgl64) * MBOX_MAX_SG_SIZE,
1206 512, 0);
1207
1208 if (raid_dev->sg_pool_handle == NULL) {
1209 goto fail_setup_dma_pool;
1210 }
1211
1212 sg_pci_blk = raid_dev->sg_pool;
1213 for (i = 0; i < MBOX_MAX_SCSI_CMDS; i++) {
1214 sg_pci_blk[i].vaddr = dma_pool_alloc(
1215 raid_dev->sg_pool_handle,
1216 GFP_KERNEL,
1217 &sg_pci_blk[i].dma_addr);
1218 if (!sg_pci_blk[i].vaddr) {
1219 goto fail_setup_dma_pool;
1220 }
1221 }
1222
1223 return 0;
1224
1225fail_setup_dma_pool:
1226 megaraid_mbox_teardown_dma_pools(adapter);
1227 return -1;
1228}
1229
1230
1231
1232
1233
1234
1235
1236
1237
1238static void
1239megaraid_mbox_teardown_dma_pools(adapter_t *adapter)
1240{
1241 mraid_device_t *raid_dev = ADAP2RAIDDEV(adapter);
1242 struct mraid_pci_blk *epthru_pci_blk;
1243 struct mraid_pci_blk *sg_pci_blk;
1244 struct mraid_pci_blk *mbox_pci_blk;
1245 int i;
1246
1247
1248 sg_pci_blk = raid_dev->sg_pool;
1249 for (i = 0; i < MBOX_MAX_SCSI_CMDS && sg_pci_blk[i].vaddr; i++) {
1250 dma_pool_free(raid_dev->sg_pool_handle, sg_pci_blk[i].vaddr,
1251 sg_pci_blk[i].dma_addr);
1252 }
1253 if (raid_dev->sg_pool_handle)
1254 dma_pool_destroy(raid_dev->sg_pool_handle);
1255
1256
1257 epthru_pci_blk = raid_dev->epthru_pool;
1258 for (i = 0; i < MBOX_MAX_SCSI_CMDS && epthru_pci_blk[i].vaddr; i++) {
1259 dma_pool_free(raid_dev->epthru_pool_handle,
1260 epthru_pci_blk[i].vaddr, epthru_pci_blk[i].dma_addr);
1261 }
1262 if (raid_dev->epthru_pool_handle)
1263 dma_pool_destroy(raid_dev->epthru_pool_handle);
1264
1265
1266 mbox_pci_blk = raid_dev->mbox_pool;
1267 for (i = 0; i < MBOX_MAX_SCSI_CMDS && mbox_pci_blk[i].vaddr; i++) {
1268 dma_pool_free(raid_dev->mbox_pool_handle,
1269 mbox_pci_blk[i].vaddr, mbox_pci_blk[i].dma_addr);
1270 }
1271 if (raid_dev->mbox_pool_handle)
1272 dma_pool_destroy(raid_dev->mbox_pool_handle);
1273
1274 return;
1275}
1276
1277
1278
1279
1280
1281
1282
1283
1284
1285
1286static scb_t *
1287megaraid_alloc_scb(adapter_t *adapter, struct scsi_cmnd *scp)
1288{
1289 struct list_head *head = &adapter->kscb_pool;
1290 scb_t *scb = NULL;
1291 unsigned long flags;
1292
1293
1294 spin_lock_irqsave(SCSI_FREE_LIST_LOCK(adapter), flags);
1295
1296 if (list_empty(head)) {
1297 spin_unlock_irqrestore(SCSI_FREE_LIST_LOCK(adapter), flags);
1298 return NULL;
1299 }
1300
1301 scb = list_entry(head->next, scb_t, list);
1302 list_del_init(&scb->list);
1303
1304 spin_unlock_irqrestore(SCSI_FREE_LIST_LOCK(adapter), flags);
1305
1306 scb->state = SCB_ACTIVE;
1307 scb->scp = scp;
1308 scb->dma_type = MRAID_DMA_NONE;
1309
1310 return scb;
1311}
1312
1313
1314
1315
1316
1317
1318
1319
1320
1321
1322
1323
1324static inline void
1325megaraid_dealloc_scb(adapter_t *adapter, scb_t *scb)
1326{
1327 unsigned long flags;
1328
1329
1330 scb->state = SCB_FREE;
1331 scb->scp = NULL;
1332 spin_lock_irqsave(SCSI_FREE_LIST_LOCK(adapter), flags);
1333
1334 list_add(&scb->list, &adapter->kscb_pool);
1335
1336 spin_unlock_irqrestore(SCSI_FREE_LIST_LOCK(adapter), flags);
1337
1338 return;
1339}
1340
1341
1342
1343
1344
1345
1346
1347
1348
1349static int
1350megaraid_mbox_mksgl(adapter_t *adapter, scb_t *scb)
1351{
1352 struct scatterlist *sgl;
1353 mbox_ccb_t *ccb;
1354 struct scsi_cmnd *scp;
1355 int sgcnt;
1356 int i;
1357
1358
1359 scp = scb->scp;
1360 ccb = (mbox_ccb_t *)scb->ccb;
1361
1362 sgcnt = scsi_dma_map(scp);
1363 BUG_ON(sgcnt < 0 || sgcnt > adapter->sglen);
1364
1365
1366 if (!sgcnt)
1367 return 0;
1368
1369 scb->dma_type = MRAID_DMA_WSG;
1370
1371 scsi_for_each_sg(scp, sgl, sgcnt, i) {
1372 ccb->sgl64[i].address = sg_dma_address(sgl);
1373 ccb->sgl64[i].length = sg_dma_len(sgl);
1374 }
1375
1376
1377 return sgcnt;
1378}
1379
1380
1381
1382
1383
1384
1385
1386
1387
1388static int
1389mbox_post_cmd(adapter_t *adapter, scb_t *scb)
1390{
1391 mraid_device_t *raid_dev = ADAP2RAIDDEV(adapter);
1392 mbox64_t *mbox64;
1393 mbox_t *mbox;
1394 mbox_ccb_t *ccb;
1395 unsigned long flags;
1396 unsigned int i = 0;
1397
1398
1399 ccb = (mbox_ccb_t *)scb->ccb;
1400 mbox = raid_dev->mbox;
1401 mbox64 = raid_dev->mbox64;
1402
1403
1404
1405
1406
1407 spin_lock_irqsave(MAILBOX_LOCK(raid_dev), flags);
1408
1409 if (unlikely(mbox->busy)) {
1410 do {
1411 udelay(1);
1412 i++;
1413 rmb();
1414 } while(mbox->busy && (i < max_mbox_busy_wait));
1415
1416 if (mbox->busy) {
1417
1418 spin_unlock_irqrestore(MAILBOX_LOCK(raid_dev), flags);
1419
1420 return -1;
1421 }
1422 }
1423
1424
1425
1426 memcpy((caddr_t)mbox64, (caddr_t)ccb->mbox64, 22);
1427 mbox->cmdid = scb->sno;
1428
1429 adapter->outstanding_cmds++;
1430
1431 if (scb->dma_direction == PCI_DMA_TODEVICE)
1432 pci_dma_sync_sg_for_device(adapter->pdev,
1433 scsi_sglist(scb->scp),
1434 scsi_sg_count(scb->scp),
1435 PCI_DMA_TODEVICE);
1436
1437 mbox->busy = 1;
1438 mbox->poll = 0;
1439 mbox->ack = 0;
1440 wmb();
1441
1442 WRINDOOR(raid_dev, raid_dev->mbox_dma | 0x1);
1443
1444 spin_unlock_irqrestore(MAILBOX_LOCK(raid_dev), flags);
1445
1446 return 0;
1447}
1448
1449
1450
1451
1452
1453
1454
1455
1456
1457static int
1458megaraid_queue_command_lck(struct scsi_cmnd *scp, void (*done)(struct scsi_cmnd *))
1459{
1460 adapter_t *adapter;
1461 scb_t *scb;
1462 int if_busy;
1463
1464 adapter = SCP2ADAPTER(scp);
1465 scp->scsi_done = done;
1466 scp->result = 0;
1467
1468
1469
1470
1471
1472
1473
1474
1475
1476 if_busy = 0;
1477 scb = megaraid_mbox_build_cmd(adapter, scp, &if_busy);
1478 if (!scb) {
1479 done(scp);
1480 return 0;
1481 }
1482
1483 megaraid_mbox_runpendq(adapter, scb);
1484 return if_busy;
1485}
1486
1487static DEF_SCSI_QCMD(megaraid_queue_command)
1488
1489
1490
1491
1492
1493
1494
1495
1496
1497
1498
1499
1500static scb_t *
1501megaraid_mbox_build_cmd(adapter_t *adapter, struct scsi_cmnd *scp, int *busy)
1502{
1503 mraid_device_t *rdev = ADAP2RAIDDEV(adapter);
1504 int channel;
1505 int target;
1506 int islogical;
1507 mbox_ccb_t *ccb;
1508 mraid_passthru_t *pthru;
1509 mbox64_t *mbox64;
1510 mbox_t *mbox;
1511 scb_t *scb;
1512 char skip[] = "skipping";
1513 char scan[] = "scanning";
1514 char *ss;
1515
1516
1517
1518
1519
1520
1521 MRAID_GET_DEVICE_MAP(adapter, scp, channel, target, islogical);
1522
1523
1524
1525
1526 if (islogical) {
1527 switch (scp->cmnd[0]) {
1528 case TEST_UNIT_READY:
1529
1530
1531
1532
1533 if (!adapter->ha) {
1534 scp->result = (DID_OK << 16);
1535 return NULL;
1536 }
1537
1538 if (!(scb = megaraid_alloc_scb(adapter, scp))) {
1539 scp->result = (DID_ERROR << 16);
1540 *busy = 1;
1541 return NULL;
1542 }
1543
1544 scb->dma_direction = scp->sc_data_direction;
1545 scb->dev_channel = 0xFF;
1546 scb->dev_target = target;
1547 ccb = (mbox_ccb_t *)scb->ccb;
1548
1549
1550
1551
1552
1553 ccb->raw_mbox[0] = CLUSTER_CMD;
1554 ccb->raw_mbox[2] = RESERVATION_STATUS;
1555 ccb->raw_mbox[3] = target;
1556
1557 return scb;
1558
1559 case MODE_SENSE:
1560 {
1561 struct scatterlist *sgl;
1562 caddr_t vaddr;
1563
1564 sgl = scsi_sglist(scp);
1565 if (sg_page(sgl)) {
1566 vaddr = (caddr_t) sg_virt(&sgl[0]);
1567
1568 memset(vaddr, 0, scp->cmnd[4]);
1569 }
1570 else {
1571 con_log(CL_ANN, (KERN_WARNING
1572 "megaraid mailbox: invalid sg:%d\n",
1573 __LINE__));
1574 }
1575 }
1576 scp->result = (DID_OK << 16);
1577 return NULL;
1578
1579 case INQUIRY:
1580
1581
1582
1583
1584 if (!(rdev->last_disp & (1L << SCP2CHANNEL(scp)))) {
1585
1586 con_log(CL_ANN, (KERN_INFO
1587 "scsi[%d]: scanning scsi channel %d",
1588 adapter->host->host_no,
1589 SCP2CHANNEL(scp)));
1590
1591 con_log(CL_ANN, (
1592 " [virtual] for logical drives\n"));
1593
1594 rdev->last_disp |= (1L << SCP2CHANNEL(scp));
1595 }
1596
1597 if (scp->cmnd[1] & MEGA_SCSI_INQ_EVPD) {
1598 scp->sense_buffer[0] = 0x70;
1599 scp->sense_buffer[2] = ILLEGAL_REQUEST;
1600 scp->sense_buffer[12] = MEGA_INVALID_FIELD_IN_CDB;
1601 scp->result = CHECK_CONDITION << 1;
1602 return NULL;
1603 }
1604
1605
1606
1607 case READ_CAPACITY:
1608
1609
1610
1611
1612 if (SCP2LUN(scp)) {
1613 scp->result = (DID_BAD_TARGET << 16);
1614 return NULL;
1615 }
1616 if ((target % 0x80) >= MAX_LOGICAL_DRIVES_40LD) {
1617 scp->result = (DID_BAD_TARGET << 16);
1618 return NULL;
1619 }
1620
1621
1622
1623 if (!(scb = megaraid_alloc_scb(adapter, scp))) {
1624 scp->result = (DID_ERROR << 16);
1625 *busy = 1;
1626 return NULL;
1627 }
1628
1629 ccb = (mbox_ccb_t *)scb->ccb;
1630 scb->dev_channel = 0xFF;
1631 scb->dev_target = target;
1632 pthru = ccb->pthru;
1633 mbox = ccb->mbox;
1634 mbox64 = ccb->mbox64;
1635
1636 pthru->timeout = 0;
1637 pthru->ars = 1;
1638 pthru->reqsenselen = 14;
1639 pthru->islogical = 1;
1640 pthru->logdrv = target;
1641 pthru->cdblen = scp->cmd_len;
1642 memcpy(pthru->cdb, scp->cmnd, scp->cmd_len);
1643
1644 mbox->cmd = MBOXCMD_PASSTHRU64;
1645 scb->dma_direction = scp->sc_data_direction;
1646
1647 pthru->dataxferlen = scsi_bufflen(scp);
1648 pthru->dataxferaddr = ccb->sgl_dma_h;
1649 pthru->numsge = megaraid_mbox_mksgl(adapter,
1650 scb);
1651
1652 mbox->xferaddr = 0xFFFFFFFF;
1653 mbox64->xferaddr_lo = (uint32_t )ccb->pthru_dma_h;
1654 mbox64->xferaddr_hi = 0;
1655
1656 return scb;
1657
1658 case READ_6:
1659 case WRITE_6:
1660 case READ_10:
1661 case WRITE_10:
1662 case READ_12:
1663 case WRITE_12:
1664
1665
1666
1667
1668 if (!(scb = megaraid_alloc_scb(adapter, scp))) {
1669 scp->result = (DID_ERROR << 16);
1670 *busy = 1;
1671 return NULL;
1672 }
1673 ccb = (mbox_ccb_t *)scb->ccb;
1674 scb->dev_channel = 0xFF;
1675 scb->dev_target = target;
1676 mbox = ccb->mbox;
1677 mbox64 = ccb->mbox64;
1678 mbox->logdrv = target;
1679
1680
1681
1682
1683
1684 mbox->cmd = (scp->cmnd[0] & 0x02) ? MBOXCMD_LWRITE64:
1685 MBOXCMD_LREAD64 ;
1686
1687
1688
1689
1690 if (scp->cmd_len == 6) {
1691 mbox->numsectors = (uint32_t)scp->cmnd[4];
1692 mbox->lba =
1693 ((uint32_t)scp->cmnd[1] << 16) |
1694 ((uint32_t)scp->cmnd[2] << 8) |
1695 (uint32_t)scp->cmnd[3];
1696
1697 mbox->lba &= 0x1FFFFF;
1698 }
1699
1700
1701
1702
1703 else if (scp->cmd_len == 10) {
1704 mbox->numsectors =
1705 (uint32_t)scp->cmnd[8] |
1706 ((uint32_t)scp->cmnd[7] << 8);
1707 mbox->lba =
1708 ((uint32_t)scp->cmnd[2] << 24) |
1709 ((uint32_t)scp->cmnd[3] << 16) |
1710 ((uint32_t)scp->cmnd[4] << 8) |
1711 (uint32_t)scp->cmnd[5];
1712 }
1713
1714
1715
1716
1717 else if (scp->cmd_len == 12) {
1718 mbox->lba =
1719 ((uint32_t)scp->cmnd[2] << 24) |
1720 ((uint32_t)scp->cmnd[3] << 16) |
1721 ((uint32_t)scp->cmnd[4] << 8) |
1722 (uint32_t)scp->cmnd[5];
1723
1724 mbox->numsectors =
1725 ((uint32_t)scp->cmnd[6] << 24) |
1726 ((uint32_t)scp->cmnd[7] << 16) |
1727 ((uint32_t)scp->cmnd[8] << 8) |
1728 (uint32_t)scp->cmnd[9];
1729 }
1730 else {
1731 con_log(CL_ANN, (KERN_WARNING
1732 "megaraid: unsupported CDB length\n"));
1733
1734 megaraid_dealloc_scb(adapter, scb);
1735
1736 scp->result = (DID_ERROR << 16);
1737 return NULL;
1738 }
1739
1740 scb->dma_direction = scp->sc_data_direction;
1741
1742
1743 mbox64->xferaddr_lo = (uint32_t )ccb->sgl_dma_h;
1744 mbox->numsge = megaraid_mbox_mksgl(adapter,
1745 scb);
1746 mbox->xferaddr = 0xFFFFFFFF;
1747 mbox64->xferaddr_hi = 0;
1748
1749 return scb;
1750
1751 case RESERVE:
1752 case RELEASE:
1753
1754
1755
1756 if (!adapter->ha) {
1757 scp->result = (DID_BAD_TARGET << 16);
1758 return NULL;
1759 }
1760
1761
1762
1763
1764 if (!(scb = megaraid_alloc_scb(adapter, scp))) {
1765 scp->result = (DID_ERROR << 16);
1766 *busy = 1;
1767 return NULL;
1768 }
1769
1770 ccb = (mbox_ccb_t *)scb->ccb;
1771 scb->dev_channel = 0xFF;
1772 scb->dev_target = target;
1773 ccb->raw_mbox[0] = CLUSTER_CMD;
1774 ccb->raw_mbox[2] = (scp->cmnd[0] == RESERVE) ?
1775 RESERVE_LD : RELEASE_LD;
1776
1777 ccb->raw_mbox[3] = target;
1778 scb->dma_direction = scp->sc_data_direction;
1779
1780 return scb;
1781
1782 default:
1783 scp->result = (DID_BAD_TARGET << 16);
1784 return NULL;
1785 }
1786 }
1787 else {
1788
1789
1790 if (target > 15 || SCP2LUN(scp) > 7) {
1791 scp->result = (DID_BAD_TARGET << 16);
1792 return NULL;
1793 }
1794
1795
1796
1797
1798 if (rdev->fast_load && (target == 15) &&
1799 (SCP2CHANNEL(scp) == adapter->max_channel -1)) {
1800
1801 con_log(CL_ANN, (KERN_INFO
1802 "megaraid[%d]: physical device scan re-enabled\n",
1803 adapter->host->host_no));
1804 rdev->fast_load = 0;
1805 }
1806
1807
1808
1809
1810 if (!(rdev->last_disp & (1L << SCP2CHANNEL(scp)))) {
1811
1812 ss = rdev->fast_load ? skip : scan;
1813
1814 con_log(CL_ANN, (KERN_INFO
1815 "scsi[%d]: %s scsi channel %d [Phy %d]",
1816 adapter->host->host_no, ss, SCP2CHANNEL(scp),
1817 channel));
1818
1819 con_log(CL_ANN, (
1820 " for non-raid devices\n"));
1821
1822 rdev->last_disp |= (1L << SCP2CHANNEL(scp));
1823 }
1824
1825
1826 if (rdev->fast_load) {
1827 scp->result = (DID_BAD_TARGET << 16);
1828 return NULL;
1829 }
1830
1831
1832 if (!(scb = megaraid_alloc_scb(adapter, scp))) {
1833 scp->result = (DID_ERROR << 16);
1834 *busy = 1;
1835 return NULL;
1836 }
1837
1838 ccb = (mbox_ccb_t *)scb->ccb;
1839 scb->dev_channel = channel;
1840 scb->dev_target = target;
1841 scb->dma_direction = scp->sc_data_direction;
1842 mbox = ccb->mbox;
1843 mbox64 = ccb->mbox64;
1844
1845
1846 if (adapter->max_cdb_sz == 16) {
1847 mbox->cmd = MBOXCMD_EXTPTHRU;
1848
1849 megaraid_mbox_prepare_epthru(adapter, scb, scp);
1850
1851 mbox64->xferaddr_lo = (uint32_t)ccb->epthru_dma_h;
1852 mbox64->xferaddr_hi = 0;
1853 mbox->xferaddr = 0xFFFFFFFF;
1854 }
1855 else {
1856 mbox->cmd = MBOXCMD_PASSTHRU64;
1857
1858 megaraid_mbox_prepare_pthru(adapter, scb, scp);
1859
1860 mbox64->xferaddr_lo = (uint32_t)ccb->pthru_dma_h;
1861 mbox64->xferaddr_hi = 0;
1862 mbox->xferaddr = 0xFFFFFFFF;
1863 }
1864 return scb;
1865 }
1866
1867
1868}
1869
1870
1871
1872
1873
1874
1875
1876
1877
1878
1879
1880
1881
1882
1883
1884static void
1885megaraid_mbox_runpendq(adapter_t *adapter, scb_t *scb_q)
1886{
1887 scb_t *scb;
1888 unsigned long flags;
1889
1890 spin_lock_irqsave(PENDING_LIST_LOCK(adapter), flags);
1891
1892 if (scb_q) {
1893 scb_q->state = SCB_PENDQ;
1894 list_add_tail(&scb_q->list, &adapter->pend_list);
1895 }
1896
1897
1898 if (adapter->quiescent) {
1899 spin_unlock_irqrestore(PENDING_LIST_LOCK(adapter), flags);
1900 return;
1901 }
1902
1903 while (!list_empty(&adapter->pend_list)) {
1904
1905 assert_spin_locked(PENDING_LIST_LOCK(adapter));
1906
1907 scb = list_entry(adapter->pend_list.next, scb_t, list);
1908
1909
1910
1911
1912
1913 list_del_init(&scb->list);
1914
1915 spin_unlock_irqrestore(PENDING_LIST_LOCK(adapter), flags);
1916
1917
1918
1919
1920
1921 scb->state = SCB_ISSUED;
1922
1923 if (mbox_post_cmd(adapter, scb) != 0) {
1924
1925 spin_lock_irqsave(PENDING_LIST_LOCK(adapter), flags);
1926
1927 scb->state = SCB_PENDQ;
1928
1929 list_add(&scb->list, &adapter->pend_list);
1930
1931 spin_unlock_irqrestore(PENDING_LIST_LOCK(adapter),
1932 flags);
1933
1934 return;
1935 }
1936
1937 spin_lock_irqsave(PENDING_LIST_LOCK(adapter), flags);
1938 }
1939
1940 spin_unlock_irqrestore(PENDING_LIST_LOCK(adapter), flags);
1941
1942
1943 return;
1944}
1945
1946
1947
1948
1949
1950
1951
1952
1953
1954
1955static void
1956megaraid_mbox_prepare_pthru(adapter_t *adapter, scb_t *scb,
1957 struct scsi_cmnd *scp)
1958{
1959 mbox_ccb_t *ccb;
1960 mraid_passthru_t *pthru;
1961 uint8_t channel;
1962 uint8_t target;
1963
1964 ccb = (mbox_ccb_t *)scb->ccb;
1965 pthru = ccb->pthru;
1966 channel = scb->dev_channel;
1967 target = scb->dev_target;
1968
1969
1970 pthru->timeout = 4;
1971 pthru->ars = 1;
1972 pthru->islogical = 0;
1973 pthru->channel = 0;
1974 pthru->target = (channel << 4) | target;
1975 pthru->logdrv = SCP2LUN(scp);
1976 pthru->reqsenselen = 14;
1977 pthru->cdblen = scp->cmd_len;
1978
1979 memcpy(pthru->cdb, scp->cmnd, scp->cmd_len);
1980
1981 if (scsi_bufflen(scp)) {
1982 pthru->dataxferlen = scsi_bufflen(scp);
1983 pthru->dataxferaddr = ccb->sgl_dma_h;
1984 pthru->numsge = megaraid_mbox_mksgl(adapter, scb);
1985 }
1986 else {
1987 pthru->dataxferaddr = 0;
1988 pthru->dataxferlen = 0;
1989 pthru->numsge = 0;
1990 }
1991 return;
1992}
1993
1994
1995
1996
1997
1998
1999
2000
2001
2002
2003
2004static void
2005megaraid_mbox_prepare_epthru(adapter_t *adapter, scb_t *scb,
2006 struct scsi_cmnd *scp)
2007{
2008 mbox_ccb_t *ccb;
2009 mraid_epassthru_t *epthru;
2010 uint8_t channel;
2011 uint8_t target;
2012
2013 ccb = (mbox_ccb_t *)scb->ccb;
2014 epthru = ccb->epthru;
2015 channel = scb->dev_channel;
2016 target = scb->dev_target;
2017
2018
2019 epthru->timeout = 4;
2020 epthru->ars = 1;
2021 epthru->islogical = 0;
2022 epthru->channel = 0;
2023 epthru->target = (channel << 4) | target;
2024 epthru->logdrv = SCP2LUN(scp);
2025 epthru->reqsenselen = 14;
2026 epthru->cdblen = scp->cmd_len;
2027
2028 memcpy(epthru->cdb, scp->cmnd, scp->cmd_len);
2029
2030 if (scsi_bufflen(scp)) {
2031 epthru->dataxferlen = scsi_bufflen(scp);
2032 epthru->dataxferaddr = ccb->sgl_dma_h;
2033 epthru->numsge = megaraid_mbox_mksgl(adapter, scb);
2034 }
2035 else {
2036 epthru->dataxferaddr = 0;
2037 epthru->dataxferlen = 0;
2038 epthru->numsge = 0;
2039 }
2040 return;
2041}
2042
2043
2044
2045
2046
2047
2048
2049
2050
2051
2052
2053static int
2054megaraid_ack_sequence(adapter_t *adapter)
2055{
2056 mraid_device_t *raid_dev = ADAP2RAIDDEV(adapter);
2057 mbox_t *mbox;
2058 scb_t *scb;
2059 uint8_t nstatus;
2060 uint8_t completed[MBOX_MAX_FIRMWARE_STATUS];
2061 struct list_head clist;
2062 int handled;
2063 uint32_t dword;
2064 unsigned long flags;
2065 int i, j;
2066
2067
2068 mbox = raid_dev->mbox;
2069
2070
2071 INIT_LIST_HEAD(&clist);
2072
2073
2074 handled = 0;
2075 spin_lock_irqsave(MAILBOX_LOCK(raid_dev), flags);
2076 do {
2077
2078
2079
2080
2081 dword = RDOUTDOOR(raid_dev);
2082 if (dword != 0x10001234) break;
2083
2084 handled = 1;
2085
2086 WROUTDOOR(raid_dev, 0x10001234);
2087
2088 nstatus = 0;
2089
2090 for (i = 0; i < 0xFFFFF; i++) {
2091 if (mbox->numstatus != 0xFF) {
2092 nstatus = mbox->numstatus;
2093 break;
2094 }
2095 rmb();
2096 }
2097 mbox->numstatus = 0xFF;
2098
2099 adapter->outstanding_cmds -= nstatus;
2100
2101 for (i = 0; i < nstatus; i++) {
2102
2103
2104 for (j = 0; j < 0xFFFFF; j++) {
2105 if (mbox->completed[i] != 0xFF) break;
2106 rmb();
2107 }
2108 completed[i] = mbox->completed[i];
2109 mbox->completed[i] = 0xFF;
2110
2111 if (completed[i] == 0xFF) {
2112 con_log(CL_ANN, (KERN_CRIT
2113 "megaraid: command posting timed out\n"));
2114
2115 BUG();
2116 continue;
2117 }
2118
2119
2120 if (completed[i] >= MBOX_MAX_SCSI_CMDS) {
2121
2122 scb = adapter->uscb_list + (completed[i] -
2123 MBOX_MAX_SCSI_CMDS);
2124 }
2125 else {
2126
2127 scb = adapter->kscb_list + completed[i];
2128 }
2129
2130 scb->status = mbox->status;
2131 list_add_tail(&scb->list, &clist);
2132 }
2133
2134
2135 WRINDOOR(raid_dev, 0x02);
2136
2137 } while(1);
2138
2139 spin_unlock_irqrestore(MAILBOX_LOCK(raid_dev), flags);
2140
2141
2142
2143
2144 spin_lock_irqsave(COMPLETED_LIST_LOCK(adapter), flags);
2145
2146 list_splice(&clist, &adapter->completed_list);
2147
2148 spin_unlock_irqrestore(COMPLETED_LIST_LOCK(adapter), flags);
2149
2150
2151
2152 if (handled)
2153 tasklet_schedule(&adapter->dpc_h);
2154
2155 return handled;
2156}
2157
2158
2159
2160
2161
2162
2163
2164
2165
2166static irqreturn_t
2167megaraid_isr(int irq, void *devp)
2168{
2169 adapter_t *adapter = devp;
2170 int handled;
2171
2172 handled = megaraid_ack_sequence(adapter);
2173
2174
2175 if (!adapter->quiescent) {
2176 megaraid_mbox_runpendq(adapter, NULL);
2177 }
2178
2179 return IRQ_RETVAL(handled);
2180}
2181
2182
2183
2184
2185
2186
2187
2188
2189
2190static void
2191megaraid_mbox_sync_scb(adapter_t *adapter, scb_t *scb)
2192{
2193 mbox_ccb_t *ccb;
2194
2195 ccb = (mbox_ccb_t *)scb->ccb;
2196
2197 if (scb->dma_direction == PCI_DMA_FROMDEVICE)
2198 pci_dma_sync_sg_for_cpu(adapter->pdev,
2199 scsi_sglist(scb->scp),
2200 scsi_sg_count(scb->scp),
2201 PCI_DMA_FROMDEVICE);
2202
2203 scsi_dma_unmap(scb->scp);
2204 return;
2205}
2206
2207
2208
2209
2210
2211
2212
2213
2214
2215
2216static void
2217megaraid_mbox_dpc(unsigned long devp)
2218{
2219 adapter_t *adapter = (adapter_t *)devp;
2220 mraid_device_t *raid_dev;
2221 struct list_head clist;
2222 struct scatterlist *sgl;
2223 scb_t *scb;
2224 scb_t *tmp;
2225 struct scsi_cmnd *scp;
2226 mraid_passthru_t *pthru;
2227 mraid_epassthru_t *epthru;
2228 mbox_ccb_t *ccb;
2229 int islogical;
2230 int pdev_index;
2231 int pdev_state;
2232 mbox_t *mbox;
2233 unsigned long flags;
2234 uint8_t c;
2235 int status;
2236 uioc_t *kioc;
2237
2238
2239 if (!adapter) return;
2240
2241 raid_dev = ADAP2RAIDDEV(adapter);
2242
2243
2244 INIT_LIST_HEAD(&clist);
2245
2246 spin_lock_irqsave(COMPLETED_LIST_LOCK(adapter), flags);
2247
2248 list_splice_init(&adapter->completed_list, &clist);
2249
2250 spin_unlock_irqrestore(COMPLETED_LIST_LOCK(adapter), flags);
2251
2252
2253 list_for_each_entry_safe(scb, tmp, &clist, list) {
2254
2255 status = scb->status;
2256 scp = scb->scp;
2257 ccb = (mbox_ccb_t *)scb->ccb;
2258 pthru = ccb->pthru;
2259 epthru = ccb->epthru;
2260 mbox = ccb->mbox;
2261
2262
2263 if (scb->state != SCB_ISSUED) {
2264 con_log(CL_ANN, (KERN_CRIT
2265 "megaraid critical err: invalid command %d:%d:%p\n",
2266 scb->sno, scb->state, scp));
2267 BUG();
2268 continue;
2269 }
2270
2271
2272 if (scb->sno >= MBOX_MAX_SCSI_CMDS) {
2273 scb->state = SCB_FREE;
2274 scb->status = status;
2275
2276
2277 list_del_init(&scb->list);
2278
2279 kioc = (uioc_t *)scb->gp;
2280 kioc->status = 0;
2281
2282 megaraid_mbox_mm_done(adapter, scb);
2283
2284 continue;
2285 }
2286
2287
2288 if (scb->state & SCB_ABORT) {
2289 con_log(CL_ANN, (KERN_NOTICE
2290 "megaraid: aborted cmd [%x] completed\n",
2291 scb->sno));
2292 }
2293
2294
2295
2296
2297
2298
2299
2300
2301
2302 islogical = MRAID_IS_LOGICAL(adapter, scp);
2303 if (scp->cmnd[0] == INQUIRY && status == 0 && islogical == 0
2304 && IS_RAID_CH(raid_dev, scb->dev_channel)) {
2305
2306 sgl = scsi_sglist(scp);
2307 if (sg_page(sgl)) {
2308 c = *(unsigned char *) sg_virt(&sgl[0]);
2309 } else {
2310 con_log(CL_ANN, (KERN_WARNING
2311 "megaraid mailbox: invalid sg:%d\n",
2312 __LINE__));
2313 c = 0;
2314 }
2315
2316 if ((c & 0x1F ) == TYPE_DISK) {
2317 pdev_index = (scb->dev_channel * 16) +
2318 scb->dev_target;
2319 pdev_state =
2320 raid_dev->pdrv_state[pdev_index] & 0x0F;
2321
2322 if (pdev_state == PDRV_ONLINE ||
2323 pdev_state == PDRV_FAILED ||
2324 pdev_state == PDRV_RBLD ||
2325 pdev_state == PDRV_HOTSPARE ||
2326 megaraid_expose_unconf_disks == 0) {
2327
2328 status = 0xF0;
2329 }
2330 }
2331 }
2332
2333
2334 switch (status) {
2335
2336 case 0x00:
2337
2338 scp->result = (DID_OK << 16);
2339 break;
2340
2341 case 0x02:
2342
2343
2344 if (mbox->cmd == MBOXCMD_PASSTHRU ||
2345 mbox->cmd == MBOXCMD_PASSTHRU64) {
2346
2347 memcpy(scp->sense_buffer, pthru->reqsensearea,
2348 14);
2349
2350 scp->result = DRIVER_SENSE << 24 |
2351 DID_OK << 16 | CHECK_CONDITION << 1;
2352 }
2353 else {
2354 if (mbox->cmd == MBOXCMD_EXTPTHRU) {
2355
2356 memcpy(scp->sense_buffer,
2357 epthru->reqsensearea, 14);
2358
2359 scp->result = DRIVER_SENSE << 24 |
2360 DID_OK << 16 |
2361 CHECK_CONDITION << 1;
2362 } else {
2363 scp->sense_buffer[0] = 0x70;
2364 scp->sense_buffer[2] = ABORTED_COMMAND;
2365 scp->result = CHECK_CONDITION << 1;
2366 }
2367 }
2368 break;
2369
2370 case 0x08:
2371
2372 scp->result = DID_BUS_BUSY << 16 | status;
2373 break;
2374
2375 default:
2376
2377
2378
2379
2380
2381 if (scp->cmnd[0] == TEST_UNIT_READY) {
2382 scp->result = DID_ERROR << 16 |
2383 RESERVATION_CONFLICT << 1;
2384 }
2385 else
2386
2387
2388
2389
2390 if (status == 1 && (scp->cmnd[0] == RESERVE ||
2391 scp->cmnd[0] == RELEASE)) {
2392
2393 scp->result = DID_ERROR << 16 |
2394 RESERVATION_CONFLICT << 1;
2395 }
2396 else {
2397 scp->result = DID_BAD_TARGET << 16 | status;
2398 }
2399 }
2400
2401
2402 if (status) {
2403 megaraid_mbox_display_scb(adapter, scb);
2404 }
2405
2406
2407
2408 megaraid_mbox_sync_scb(adapter, scb);
2409
2410
2411 list_del_init(&scb->list);
2412
2413
2414 megaraid_dealloc_scb(adapter, scb);
2415
2416
2417 scp->scsi_done(scp);
2418 }
2419
2420 return;
2421}
2422
2423
2424
2425
2426
2427
2428
2429
2430
2431static int
2432megaraid_abort_handler(struct scsi_cmnd *scp)
2433{
2434 adapter_t *adapter;
2435 mraid_device_t *raid_dev;
2436 scb_t *scb;
2437 scb_t *tmp;
2438 int found;
2439 unsigned long flags;
2440 int i;
2441
2442
2443 adapter = SCP2ADAPTER(scp);
2444 raid_dev = ADAP2RAIDDEV(adapter);
2445
2446 con_log(CL_ANN, (KERN_WARNING
2447 "megaraid: aborting cmd=%x <c=%d t=%d l=%d>\n",
2448 scp->cmnd[0], SCP2CHANNEL(scp),
2449 SCP2TARGET(scp), SCP2LUN(scp)));
2450
2451
2452 if (raid_dev->hw_error) {
2453 con_log(CL_ANN, (KERN_NOTICE
2454 "megaraid: hw error, not aborting\n"));
2455 return FAILED;
2456 }
2457
2458
2459
2460
2461
2462 scb = NULL;
2463 spin_lock_irqsave(COMPLETED_LIST_LOCK(adapter), flags);
2464 list_for_each_entry_safe(scb, tmp, &adapter->completed_list, list) {
2465
2466 if (scb->scp == scp) {
2467
2468 list_del_init(&scb->list);
2469
2470 con_log(CL_ANN, (KERN_WARNING
2471 "megaraid: %d[%d:%d], abort from completed list\n",
2472 scb->sno, scb->dev_channel, scb->dev_target));
2473
2474 scp->result = (DID_ABORT << 16);
2475 scp->scsi_done(scp);
2476
2477 megaraid_dealloc_scb(adapter, scb);
2478
2479 spin_unlock_irqrestore(COMPLETED_LIST_LOCK(adapter),
2480 flags);
2481
2482 return SUCCESS;
2483 }
2484 }
2485 spin_unlock_irqrestore(COMPLETED_LIST_LOCK(adapter), flags);
2486
2487
2488
2489
2490
2491 spin_lock_irqsave(PENDING_LIST_LOCK(adapter), flags);
2492 list_for_each_entry_safe(scb, tmp, &adapter->pend_list, list) {
2493
2494 if (scb->scp == scp) {
2495
2496 list_del_init(&scb->list);
2497
2498 ASSERT(!(scb->state & SCB_ISSUED));
2499
2500 con_log(CL_ANN, (KERN_WARNING
2501 "megaraid abort: [%d:%d], driver owner\n",
2502 scb->dev_channel, scb->dev_target));
2503
2504 scp->result = (DID_ABORT << 16);
2505 scp->scsi_done(scp);
2506
2507 megaraid_dealloc_scb(adapter, scb);
2508
2509 spin_unlock_irqrestore(PENDING_LIST_LOCK(adapter),
2510 flags);
2511
2512 return SUCCESS;
2513 }
2514 }
2515 spin_unlock_irqrestore(PENDING_LIST_LOCK(adapter), flags);
2516
2517
2518
2519
2520
2521
2522 found = 0;
2523 spin_lock_irq(&adapter->lock);
2524 for (i = 0; i < MBOX_MAX_SCSI_CMDS; i++) {
2525 scb = adapter->kscb_list + i;
2526
2527 if (scb->scp == scp) {
2528
2529 found = 1;
2530
2531 if (!(scb->state & SCB_ISSUED)) {
2532 con_log(CL_ANN, (KERN_WARNING
2533 "megaraid abort: %d[%d:%d], invalid state\n",
2534 scb->sno, scb->dev_channel, scb->dev_target));
2535 BUG();
2536 }
2537 else {
2538 con_log(CL_ANN, (KERN_WARNING
2539 "megaraid abort: %d[%d:%d], fw owner\n",
2540 scb->sno, scb->dev_channel, scb->dev_target));
2541 }
2542 }
2543 }
2544 spin_unlock_irq(&adapter->lock);
2545
2546 if (!found) {
2547 con_log(CL_ANN, (KERN_WARNING "megaraid abort: do now own\n"));
2548
2549
2550 return SUCCESS;
2551 }
2552
2553
2554
2555
2556 return FAILED;
2557}
2558
2559
2560
2561
2562
2563
2564
2565
2566
2567
2568
2569static int
2570megaraid_reset_handler(struct scsi_cmnd *scp)
2571{
2572 adapter_t *adapter;
2573 scb_t *scb;
2574 scb_t *tmp;
2575 mraid_device_t *raid_dev;
2576 unsigned long flags;
2577 uint8_t raw_mbox[sizeof(mbox_t)];
2578 int rval;
2579 int recovery_window;
2580 int recovering;
2581 int i;
2582 uioc_t *kioc;
2583
2584 adapter = SCP2ADAPTER(scp);
2585 raid_dev = ADAP2RAIDDEV(adapter);
2586
2587
2588 if (raid_dev->hw_error) {
2589 con_log(CL_ANN, (KERN_NOTICE
2590 "megaraid: hw error, cannot reset\n"));
2591 return FAILED;
2592 }
2593
2594
2595
2596
2597
2598
2599
2600 spin_lock_irqsave(PENDING_LIST_LOCK(adapter), flags);
2601 list_for_each_entry_safe(scb, tmp, &adapter->pend_list, list) {
2602 list_del_init(&scb->list);
2603
2604 if (scb->sno >= MBOX_MAX_SCSI_CMDS) {
2605 con_log(CL_ANN, (KERN_WARNING
2606 "megaraid: IOCTL packet with %d[%d:%d] being reset\n",
2607 scb->sno, scb->dev_channel, scb->dev_target));
2608
2609 scb->status = -1;
2610
2611 kioc = (uioc_t *)scb->gp;
2612 kioc->status = -EFAULT;
2613
2614 megaraid_mbox_mm_done(adapter, scb);
2615 } else {
2616 if (scb->scp == scp) {
2617 con_log(CL_ANN, (KERN_WARNING
2618 "megaraid: %d[%d:%d], reset from pending list\n",
2619 scb->sno, scb->dev_channel, scb->dev_target));
2620 } else {
2621 con_log(CL_ANN, (KERN_WARNING
2622 "megaraid: IO packet with %d[%d:%d] being reset\n",
2623 scb->sno, scb->dev_channel, scb->dev_target));
2624 }
2625
2626 scb->scp->result = (DID_RESET << 16);
2627 scb->scp->scsi_done(scb->scp);
2628
2629 megaraid_dealloc_scb(adapter, scb);
2630 }
2631 }
2632 spin_unlock_irqrestore(PENDING_LIST_LOCK(adapter), flags);
2633
2634 if (adapter->outstanding_cmds) {
2635 con_log(CL_ANN, (KERN_NOTICE
2636 "megaraid: %d outstanding commands. Max wait %d sec\n",
2637 adapter->outstanding_cmds,
2638 (MBOX_RESET_WAIT + MBOX_RESET_EXT_WAIT)));
2639 }
2640
2641 recovery_window = MBOX_RESET_WAIT + MBOX_RESET_EXT_WAIT;
2642
2643 recovering = adapter->outstanding_cmds;
2644
2645 for (i = 0; i < recovery_window; i++) {
2646
2647 megaraid_ack_sequence(adapter);
2648
2649
2650 if (!(i % 5)) {
2651 con_log(CL_ANN, (
2652 "megaraid mbox: Wait for %d commands to complete:%d\n",
2653 adapter->outstanding_cmds,
2654 (MBOX_RESET_WAIT + MBOX_RESET_EXT_WAIT) - i));
2655 }
2656
2657
2658 if (adapter->outstanding_cmds == 0) {
2659 break;
2660 }
2661
2662 msleep(1000);
2663 }
2664
2665 spin_lock(&adapter->lock);
2666
2667
2668 if (adapter->outstanding_cmds) {
2669 con_log(CL_ANN, (KERN_WARNING
2670 "megaraid mbox: critical hardware error!\n"));
2671
2672 raid_dev->hw_error = 1;
2673
2674 rval = FAILED;
2675 goto out;
2676 }
2677 else {
2678 con_log(CL_ANN, (KERN_NOTICE
2679 "megaraid mbox: reset sequence completed successfully\n"));
2680 }
2681
2682
2683
2684 if (!adapter->ha) {
2685 rval = SUCCESS;
2686 goto out;
2687 }
2688
2689
2690 raw_mbox[0] = CLUSTER_CMD;
2691 raw_mbox[2] = RESET_RESERVATIONS;
2692
2693 rval = SUCCESS;
2694 if (mbox_post_sync_cmd_fast(adapter, raw_mbox) == 0) {
2695 con_log(CL_ANN,
2696 (KERN_INFO "megaraid: reservation reset\n"));
2697 }
2698 else {
2699 rval = FAILED;
2700 con_log(CL_ANN, (KERN_WARNING
2701 "megaraid: reservation reset failed\n"));
2702 }
2703
2704 out:
2705 spin_unlock(&adapter->lock);
2706 return rval;
2707}
2708
2709
2710
2711
2712
2713
2714
2715
2716
2717
2718
2719
2720
2721
2722
2723
2724static int
2725mbox_post_sync_cmd(adapter_t *adapter, uint8_t raw_mbox[])
2726{
2727 mraid_device_t *raid_dev = ADAP2RAIDDEV(adapter);
2728 mbox64_t *mbox64;
2729 mbox_t *mbox;
2730 uint8_t status;
2731 int i;
2732
2733
2734 mbox64 = raid_dev->mbox64;
2735 mbox = raid_dev->mbox;
2736
2737
2738
2739
2740 if (megaraid_busywait_mbox(raid_dev) != 0)
2741 goto blocked_mailbox;
2742
2743
2744
2745
2746 memcpy((caddr_t)mbox, (caddr_t)raw_mbox, 16);
2747 mbox->cmdid = 0xFE;
2748 mbox->busy = 1;
2749 mbox->poll = 0;
2750 mbox->ack = 0;
2751 mbox->numstatus = 0xFF;
2752 mbox->status = 0xFF;
2753
2754 wmb();
2755 WRINDOOR(raid_dev, raid_dev->mbox_dma | 0x1);
2756
2757
2758
2759
2760 if (mbox->numstatus == 0xFF) {
2761 udelay(25);
2762
2763 for (i = 0; mbox->numstatus == 0xFF && i < 1000; i++) {
2764 rmb();
2765 msleep(1);
2766 }
2767
2768
2769 if (i == 1000) {
2770 con_log(CL_ANN, (KERN_NOTICE
2771 "megaraid mailbox: wait for FW to boot "));
2772
2773 for (i = 0; (mbox->numstatus == 0xFF) &&
2774 (i < MBOX_RESET_WAIT); i++) {
2775 rmb();
2776 con_log(CL_ANN, ("\b\b\b\b\b[%03d]",
2777 MBOX_RESET_WAIT - i));
2778 msleep(1000);
2779 }
2780
2781 if (i == MBOX_RESET_WAIT) {
2782
2783 con_log(CL_ANN, (
2784 "\nmegaraid mailbox: status not available\n"));
2785
2786 return -1;
2787 }
2788 con_log(CL_ANN, ("\b\b\b\b\b[ok] \n"));
2789 }
2790 }
2791
2792
2793 if (mbox->poll != 0x77) {
2794 udelay(25);
2795
2796 for (i = 0; (mbox->poll != 0x77) && (i < 1000); i++) {
2797 rmb();
2798 msleep(1);
2799 }
2800
2801 if (i == 1000) {
2802 con_log(CL_ANN, (KERN_WARNING
2803 "megaraid mailbox: could not get poll semaphore\n"));
2804 return -1;
2805 }
2806 }
2807
2808 WRINDOOR(raid_dev, raid_dev->mbox_dma | 0x2);
2809 wmb();
2810
2811
2812 if (RDINDOOR(raid_dev) & 0x2) {
2813 udelay(25);
2814
2815 for (i = 0; (RDINDOOR(raid_dev) & 0x2) && (i < 1000); i++) {
2816 rmb();
2817 msleep(1);
2818 }
2819
2820 if (i == 1000) {
2821 con_log(CL_ANN, (KERN_WARNING
2822 "megaraid mailbox: could not acknowledge\n"));
2823 return -1;
2824 }
2825 }
2826 mbox->poll = 0;
2827 mbox->ack = 0x77;
2828
2829 status = mbox->status;
2830
2831
2832
2833 mbox->numstatus = 0xFF;
2834 mbox->status = 0xFF;
2835 for (i = 0; i < MBOX_MAX_FIRMWARE_STATUS; i++) {
2836 mbox->completed[i] = 0xFF;
2837 }
2838
2839 return status;
2840
2841blocked_mailbox:
2842
2843 con_log(CL_ANN, (KERN_WARNING "megaraid: blocked mailbox\n") );
2844 return -1;
2845}
2846
2847
2848
2849
2850
2851
2852
2853
2854
2855
2856
2857static int
2858mbox_post_sync_cmd_fast(adapter_t *adapter, uint8_t raw_mbox[])
2859{
2860 mraid_device_t *raid_dev = ADAP2RAIDDEV(adapter);
2861 mbox_t *mbox;
2862 long i;
2863
2864
2865 mbox = raid_dev->mbox;
2866
2867
2868 if (mbox->busy) return -1;
2869
2870
2871 memcpy((caddr_t)mbox, (caddr_t)raw_mbox, 14);
2872 mbox->cmdid = 0xFE;
2873 mbox->busy = 1;
2874 mbox->poll = 0;
2875 mbox->ack = 0;
2876 mbox->numstatus = 0xFF;
2877 mbox->status = 0xFF;
2878
2879 wmb();
2880 WRINDOOR(raid_dev, raid_dev->mbox_dma | 0x1);
2881
2882 for (i = 0; i < MBOX_SYNC_WAIT_CNT; i++) {
2883 if (mbox->numstatus != 0xFF) break;
2884 rmb();
2885 udelay(MBOX_SYNC_DELAY_200);
2886 }
2887
2888 if (i == MBOX_SYNC_WAIT_CNT) {
2889
2890 con_log(CL_ANN, (KERN_CRIT
2891 "megaraid: fast sync command timed out\n"));
2892 }
2893
2894 WRINDOOR(raid_dev, raid_dev->mbox_dma | 0x2);
2895 wmb();
2896
2897 return mbox->status;
2898}
2899
2900
2901
2902
2903
2904
2905
2906
2907
2908static int
2909megaraid_busywait_mbox(mraid_device_t *raid_dev)
2910{
2911 mbox_t *mbox = raid_dev->mbox;
2912 int i = 0;
2913
2914 if (mbox->busy) {
2915 udelay(25);
2916 for (i = 0; mbox->busy && i < 1000; i++)
2917 msleep(1);
2918 }
2919
2920 if (i < 1000) return 0;
2921 else return -1;
2922}
2923
2924
2925
2926
2927
2928
2929
2930
2931
2932static int
2933megaraid_mbox_product_info(adapter_t *adapter)
2934{
2935 mraid_device_t *raid_dev = ADAP2RAIDDEV(adapter);
2936 mbox_t *mbox;
2937 uint8_t raw_mbox[sizeof(mbox_t)];
2938 mraid_pinfo_t *pinfo;
2939 dma_addr_t pinfo_dma_h;
2940 mraid_inquiry3_t *mraid_inq3;
2941 int i;
2942
2943
2944 memset((caddr_t)raw_mbox, 0, sizeof(raw_mbox));
2945 mbox = (mbox_t *)raw_mbox;
2946
2947
2948
2949
2950
2951 pinfo = pci_zalloc_consistent(adapter->pdev, sizeof(mraid_pinfo_t),
2952 &pinfo_dma_h);
2953
2954 if (pinfo == NULL) {
2955 con_log(CL_ANN, (KERN_WARNING
2956 "megaraid: out of memory, %s %d\n", __func__,
2957 __LINE__));
2958
2959 return -1;
2960 }
2961
2962 mbox->xferaddr = (uint32_t)adapter->ibuf_dma_h;
2963 memset((void *)adapter->ibuf, 0, MBOX_IBUF_SIZE);
2964
2965 raw_mbox[0] = FC_NEW_CONFIG;
2966 raw_mbox[2] = NC_SUBOP_ENQUIRY3;
2967 raw_mbox[3] = ENQ3_GET_SOLICITED_FULL;
2968
2969
2970 if (mbox_post_sync_cmd(adapter, raw_mbox) != 0) {
2971
2972 con_log(CL_ANN, (KERN_WARNING "megaraid: Inquiry3 failed\n"));
2973
2974 pci_free_consistent(adapter->pdev, sizeof(mraid_pinfo_t),
2975 pinfo, pinfo_dma_h);
2976
2977 return -1;
2978 }
2979
2980
2981
2982
2983
2984
2985 mraid_inq3 = (mraid_inquiry3_t *)adapter->ibuf;
2986 for (i = 0; i < MBOX_MAX_PHYSICAL_DRIVES; i++) {
2987 raid_dev->pdrv_state[i] = mraid_inq3->pdrv_state[i];
2988 }
2989
2990
2991
2992
2993
2994 memset((caddr_t)raw_mbox, 0, sizeof(raw_mbox));
2995 mbox->xferaddr = (uint32_t)pinfo_dma_h;
2996
2997 raw_mbox[0] = FC_NEW_CONFIG;
2998 raw_mbox[2] = NC_SUBOP_PRODUCT_INFO;
2999
3000 if (mbox_post_sync_cmd(adapter, raw_mbox) != 0) {
3001
3002 con_log(CL_ANN, (KERN_WARNING
3003 "megaraid: product info failed\n"));
3004
3005 pci_free_consistent(adapter->pdev, sizeof(mraid_pinfo_t),
3006 pinfo, pinfo_dma_h);
3007
3008 return -1;
3009 }
3010
3011
3012
3013
3014 adapter->max_channel = pinfo->nchannels;
3015
3016
3017
3018
3019
3020 adapter->max_target = MAX_LOGICAL_DRIVES_40LD + 1;
3021 adapter->max_lun = 8;
3022
3023
3024
3025
3026 adapter->max_cmds = MBOX_MAX_SCSI_CMDS;
3027
3028 memset(adapter->fw_version, 0, VERSION_SIZE);
3029 memset(adapter->bios_version, 0, VERSION_SIZE);
3030
3031 memcpy(adapter->fw_version, pinfo->fw_version, 4);
3032 adapter->fw_version[4] = 0;
3033
3034 memcpy(adapter->bios_version, pinfo->bios_version, 4);
3035 adapter->bios_version[4] = 0;
3036
3037 con_log(CL_ANN, (KERN_NOTICE
3038 "megaraid: fw version:[%s] bios version:[%s]\n",
3039 adapter->fw_version, adapter->bios_version));
3040
3041 pci_free_consistent(adapter->pdev, sizeof(mraid_pinfo_t), pinfo,
3042 pinfo_dma_h);
3043
3044 return 0;
3045}
3046
3047
3048
3049
3050
3051
3052
3053
3054
3055
3056static int
3057megaraid_mbox_extended_cdb(adapter_t *adapter)
3058{
3059 mbox_t *mbox;
3060 uint8_t raw_mbox[sizeof(mbox_t)];
3061 int rval;
3062
3063 mbox = (mbox_t *)raw_mbox;
3064
3065 memset((caddr_t)raw_mbox, 0, sizeof(raw_mbox));
3066 mbox->xferaddr = (uint32_t)adapter->ibuf_dma_h;
3067
3068 memset((void *)adapter->ibuf, 0, MBOX_IBUF_SIZE);
3069
3070 raw_mbox[0] = MAIN_MISC_OPCODE;
3071 raw_mbox[2] = SUPPORT_EXT_CDB;
3072
3073
3074
3075
3076 rval = 0;
3077 if (mbox_post_sync_cmd(adapter, raw_mbox) != 0) {
3078 rval = -1;
3079 }
3080
3081 return rval;
3082}
3083
3084
3085
3086
3087
3088
3089
3090
3091
3092static int
3093megaraid_mbox_support_ha(adapter_t *adapter, uint16_t *init_id)
3094{
3095 mbox_t *mbox;
3096 uint8_t raw_mbox[sizeof(mbox_t)];
3097 int rval;
3098
3099
3100 mbox = (mbox_t *)raw_mbox;
3101
3102 memset((caddr_t)raw_mbox, 0, sizeof(raw_mbox));
3103
3104 mbox->xferaddr = (uint32_t)adapter->ibuf_dma_h;
3105
3106 memset((void *)adapter->ibuf, 0, MBOX_IBUF_SIZE);
3107
3108 raw_mbox[0] = GET_TARGET_ID;
3109
3110
3111 *init_id = 7;
3112 rval = -1;
3113 if (mbox_post_sync_cmd(adapter, raw_mbox) == 0) {
3114
3115 *init_id = *(uint8_t *)adapter->ibuf;
3116
3117 con_log(CL_ANN, (KERN_INFO
3118 "megaraid: cluster firmware, initiator ID: %d\n",
3119 *init_id));
3120
3121 rval = 0;
3122 }
3123
3124 return rval;
3125}
3126
3127
3128
3129
3130
3131
3132
3133
3134
3135static int
3136megaraid_mbox_support_random_del(adapter_t *adapter)
3137{
3138 mbox_t *mbox;
3139 uint8_t raw_mbox[sizeof(mbox_t)];
3140 int rval;
3141
3142
3143
3144
3145
3146 if (adapter->pdev->vendor == PCI_VENDOR_ID_AMI &&
3147 adapter->pdev->device == PCI_DEVICE_ID_AMI_MEGARAID3 &&
3148 adapter->pdev->subsystem_vendor == PCI_VENDOR_ID_DELL &&
3149 adapter->pdev->subsystem_device == PCI_SUBSYS_ID_CERC_ATA100_4CH &&
3150 (adapter->fw_version[0] > '6' ||
3151 (adapter->fw_version[0] == '6' &&
3152 adapter->fw_version[2] > '6') ||
3153 (adapter->fw_version[0] == '6'
3154 && adapter->fw_version[2] == '6'
3155 && adapter->fw_version[3] > '1'))) {
3156 con_log(CL_DLEVEL1, ("megaraid: disable random deletion\n"));
3157 return 0;
3158 }
3159
3160 mbox = (mbox_t *)raw_mbox;
3161
3162 memset((caddr_t)raw_mbox, 0, sizeof(mbox_t));
3163
3164 raw_mbox[0] = FC_DEL_LOGDRV;
3165 raw_mbox[2] = OP_SUP_DEL_LOGDRV;
3166
3167
3168 rval = 0;
3169 if (mbox_post_sync_cmd(adapter, raw_mbox) == 0) {
3170
3171 con_log(CL_DLEVEL1, ("megaraid: supports random deletion\n"));
3172
3173 rval = 1;
3174 }
3175
3176 return rval;
3177}
3178
3179
3180
3181
3182
3183
3184
3185
3186
3187static int
3188megaraid_mbox_get_max_sg(adapter_t *adapter)
3189{
3190 mbox_t *mbox;
3191 uint8_t raw_mbox[sizeof(mbox_t)];
3192 int nsg;
3193
3194
3195 mbox = (mbox_t *)raw_mbox;
3196
3197 memset((caddr_t)raw_mbox, 0, sizeof(mbox_t));
3198
3199 mbox->xferaddr = (uint32_t)adapter->ibuf_dma_h;
3200
3201 memset((void *)adapter->ibuf, 0, MBOX_IBUF_SIZE);
3202
3203 raw_mbox[0] = MAIN_MISC_OPCODE;
3204 raw_mbox[2] = GET_MAX_SG_SUPPORT;
3205
3206
3207 if (mbox_post_sync_cmd(adapter, raw_mbox) == 0) {
3208 nsg = *(uint8_t *)adapter->ibuf;
3209 }
3210 else {
3211 nsg = MBOX_DEFAULT_SG_SIZE;
3212 }
3213
3214 if (nsg > MBOX_MAX_SG_SIZE) nsg = MBOX_MAX_SG_SIZE;
3215
3216 return nsg;
3217}
3218
3219
3220
3221
3222
3223
3224
3225
3226
3227static void
3228megaraid_mbox_enum_raid_scsi(adapter_t *adapter)
3229{
3230 mraid_device_t *raid_dev = ADAP2RAIDDEV(adapter);
3231 mbox_t *mbox;
3232 uint8_t raw_mbox[sizeof(mbox_t)];
3233
3234
3235 mbox = (mbox_t *)raw_mbox;
3236
3237 memset((caddr_t)raw_mbox, 0, sizeof(mbox_t));
3238
3239 mbox->xferaddr = (uint32_t)adapter->ibuf_dma_h;
3240
3241 memset((void *)adapter->ibuf, 0, MBOX_IBUF_SIZE);
3242
3243 raw_mbox[0] = CHNL_CLASS;
3244 raw_mbox[2] = GET_CHNL_CLASS;
3245
3246
3247
3248 raid_dev->channel_class = 0xFF;
3249 if (mbox_post_sync_cmd(adapter, raw_mbox) == 0) {
3250 raid_dev->channel_class = *(uint8_t *)adapter->ibuf;
3251 }
3252
3253 return;
3254}
3255
3256
3257
3258
3259
3260
3261
3262
3263static void
3264megaraid_mbox_flush_cache(adapter_t *adapter)
3265{
3266 mbox_t *mbox;
3267 uint8_t raw_mbox[sizeof(mbox_t)];
3268
3269
3270 mbox = (mbox_t *)raw_mbox;
3271
3272 memset((caddr_t)raw_mbox, 0, sizeof(mbox_t));
3273
3274 raw_mbox[0] = FLUSH_ADAPTER;
3275
3276 if (mbox_post_sync_cmd(adapter, raw_mbox) != 0) {
3277 con_log(CL_ANN, ("megaraid: flush adapter failed\n"));
3278 }
3279
3280 raw_mbox[0] = FLUSH_SYSTEM;
3281
3282 if (mbox_post_sync_cmd(adapter, raw_mbox) != 0) {
3283 con_log(CL_ANN, ("megaraid: flush disks cache failed\n"));
3284 }
3285
3286 return;
3287}
3288
3289
3290
3291
3292
3293
3294
3295
3296static int
3297megaraid_mbox_fire_sync_cmd(adapter_t *adapter)
3298{
3299 mbox_t *mbox;
3300 uint8_t raw_mbox[sizeof(mbox_t)];
3301 mraid_device_t *raid_dev = ADAP2RAIDDEV(adapter);
3302 mbox64_t *mbox64;
3303 int status = 0;
3304 int i;
3305 uint32_t dword;
3306
3307 mbox = (mbox_t *)raw_mbox;
3308
3309 memset((caddr_t)raw_mbox, 0, sizeof(mbox_t));
3310
3311 raw_mbox[0] = 0xFF;
3312
3313 mbox64 = raid_dev->mbox64;
3314 mbox = raid_dev->mbox;
3315
3316
3317 if (megaraid_busywait_mbox(raid_dev) != 0) {
3318 status = 1;
3319 goto blocked_mailbox;
3320 }
3321
3322
3323 memcpy((caddr_t)mbox, (caddr_t)raw_mbox, 16);
3324 mbox->cmdid = 0xFE;
3325 mbox->busy = 1;
3326 mbox->poll = 0;
3327 mbox->ack = 0;
3328 mbox->numstatus = 0;
3329 mbox->status = 0;
3330
3331 wmb();
3332 WRINDOOR(raid_dev, raid_dev->mbox_dma | 0x1);
3333
3334
3335
3336
3337
3338
3339
3340
3341
3342 i = 0;
3343 status = 0;
3344 while (!mbox->numstatus && mbox->cmd == 0xFF) {
3345 rmb();
3346 msleep(1);
3347 i++;
3348 if (i > 1000 * 60) {
3349 status = 1;
3350 break;
3351 }
3352 }
3353 if (mbox->numstatus == 1)
3354 status = 1;
3355
3356
3357 dword = RDOUTDOOR(raid_dev);
3358 WROUTDOOR(raid_dev, dword);
3359 WRINDOOR(raid_dev,2);
3360
3361 return status;
3362
3363blocked_mailbox:
3364 con_log(CL_ANN, (KERN_WARNING "megaraid: blocked mailbox\n"));
3365 return status;
3366}
3367
3368
3369
3370
3371
3372
3373
3374
3375
3376
3377static void
3378megaraid_mbox_display_scb(adapter_t *adapter, scb_t *scb)
3379{
3380 mbox_ccb_t *ccb;
3381 struct scsi_cmnd *scp;
3382 mbox_t *mbox;
3383 int level;
3384 int i;
3385
3386
3387 ccb = (mbox_ccb_t *)scb->ccb;
3388 scp = scb->scp;
3389 mbox = ccb->mbox;
3390
3391 level = CL_DLEVEL3;
3392
3393 con_log(level, (KERN_NOTICE
3394 "megaraid mailbox: status:%#x cmd:%#x id:%#x ", scb->status,
3395 mbox->cmd, scb->sno));
3396
3397 con_log(level, ("sec:%#x lba:%#x addr:%#x ld:%d sg:%d\n",
3398 mbox->numsectors, mbox->lba, mbox->xferaddr, mbox->logdrv,
3399 mbox->numsge));
3400
3401 if (!scp) return;
3402
3403 con_log(level, (KERN_NOTICE "scsi cmnd: "));
3404
3405 for (i = 0; i < scp->cmd_len; i++) {
3406 con_log(level, ("%#2.02x ", scp->cmnd[i]));
3407 }
3408
3409 con_log(level, ("\n"));
3410
3411 return;
3412}
3413
3414
3415
3416
3417
3418
3419
3420
3421
3422
3423
3424static void
3425megaraid_mbox_setup_device_map(adapter_t *adapter)
3426{
3427 uint8_t c;
3428 uint8_t t;
3429
3430
3431
3432
3433 for (t = 0; t < LSI_MAX_LOGICAL_DRIVES_64LD; t++)
3434 adapter->device_ids[adapter->max_channel][t] =
3435 (t < adapter->init_id) ? t : t - 1;
3436
3437 adapter->device_ids[adapter->max_channel][adapter->init_id] = 0xFF;
3438
3439
3440
3441
3442 for (c = 0; c < adapter->max_channel; c++)
3443 for (t = 0; t < LSI_MAX_LOGICAL_DRIVES_64LD; t++)
3444 adapter->device_ids[c][t] = (c << 8) | t;
3445}
3446
3447
3448
3449
3450
3451
3452
3453
3454
3455
3456
3457
3458
3459
3460
3461
3462
3463
3464
3465
3466
3467static int
3468megaraid_cmm_register(adapter_t *adapter)
3469{
3470 mraid_device_t *raid_dev = ADAP2RAIDDEV(adapter);
3471 mraid_mmadp_t adp;
3472 scb_t *scb;
3473 mbox_ccb_t *ccb;
3474 int rval;
3475 int i;
3476
3477
3478 adapter->uscb_list = kcalloc(MBOX_MAX_USER_CMDS, sizeof(scb_t), GFP_KERNEL);
3479
3480 if (adapter->uscb_list == NULL) {
3481 con_log(CL_ANN, (KERN_WARNING
3482 "megaraid: out of memory, %s %d\n", __func__,
3483 __LINE__));
3484 return -1;
3485 }
3486
3487
3488
3489
3490 INIT_LIST_HEAD(&adapter->uscb_pool);
3491
3492 spin_lock_init(USER_FREE_LIST_LOCK(adapter));
3493
3494
3495
3496
3497
3498
3499
3500 for (i = 0; i < MBOX_MAX_USER_CMDS; i++) {
3501
3502 scb = adapter->uscb_list + i;
3503 ccb = raid_dev->uccb_list + i;
3504
3505 scb->ccb = (caddr_t)ccb;
3506 ccb->mbox64 = raid_dev->umbox64 + i;
3507 ccb->mbox = &ccb->mbox64->mbox32;
3508 ccb->raw_mbox = (uint8_t *)ccb->mbox;
3509
3510 scb->gp = 0;
3511
3512
3513
3514 scb->sno = i + MBOX_MAX_SCSI_CMDS;
3515
3516 scb->scp = NULL;
3517 scb->state = SCB_FREE;
3518 scb->dma_direction = PCI_DMA_NONE;
3519 scb->dma_type = MRAID_DMA_NONE;
3520 scb->dev_channel = -1;
3521 scb->dev_target = -1;
3522
3523
3524 list_add_tail(&scb->list, &adapter->uscb_pool);
3525 }
3526
3527 adp.unique_id = adapter->unique_id;
3528 adp.drvr_type = DRVRTYPE_MBOX;
3529 adp.drvr_data = (unsigned long)adapter;
3530 adp.pdev = adapter->pdev;
3531 adp.issue_uioc = megaraid_mbox_mm_handler;
3532 adp.timeout = MBOX_RESET_WAIT + MBOX_RESET_EXT_WAIT;
3533 adp.max_kioc = MBOX_MAX_USER_CMDS;
3534
3535 if ((rval = mraid_mm_register_adp(&adp)) != 0) {
3536
3537 con_log(CL_ANN, (KERN_WARNING
3538 "megaraid mbox: did not register with CMM\n"));
3539
3540 kfree(adapter->uscb_list);
3541 }
3542
3543 return rval;
3544}
3545
3546
3547
3548
3549
3550
3551
3552
3553
3554
3555static int
3556megaraid_cmm_unregister(adapter_t *adapter)
3557{
3558 kfree(adapter->uscb_list);
3559 mraid_mm_unregister_adp(adapter->unique_id);
3560 return 0;
3561}
3562
3563
3564
3565
3566
3567
3568
3569
3570
3571
3572
3573
3574static int
3575megaraid_mbox_mm_handler(unsigned long drvr_data, uioc_t *kioc, uint32_t action)
3576{
3577 adapter_t *adapter;
3578
3579 if (action != IOCTL_ISSUE) {
3580 con_log(CL_ANN, (KERN_WARNING
3581 "megaraid: unsupported management action:%#2x\n",
3582 action));
3583 return (-ENOTSUPP);
3584 }
3585
3586 adapter = (adapter_t *)drvr_data;
3587
3588
3589 if (atomic_read(&adapter->being_detached)) {
3590 con_log(CL_ANN, (KERN_WARNING
3591 "megaraid: reject management request, detaching\n"));
3592 return (-ENODEV);
3593 }
3594
3595 switch (kioc->opcode) {
3596
3597 case GET_ADAP_INFO:
3598
3599 kioc->status = gather_hbainfo(adapter, (mraid_hba_info_t *)
3600 (unsigned long)kioc->buf_vaddr);
3601
3602 kioc->done(kioc);
3603
3604 return kioc->status;
3605
3606 case MBOX_CMD:
3607
3608 return megaraid_mbox_mm_command(adapter, kioc);
3609
3610 default:
3611 kioc->status = (-EINVAL);
3612 kioc->done(kioc);
3613 return (-EINVAL);
3614 }
3615
3616 return 0;
3617}
3618
3619
3620
3621
3622
3623
3624
3625
3626static int
3627megaraid_mbox_mm_command(adapter_t *adapter, uioc_t *kioc)
3628{
3629 struct list_head *head = &adapter->uscb_pool;
3630 mbox64_t *mbox64;
3631 uint8_t *raw_mbox;
3632 scb_t *scb;
3633 mbox_ccb_t *ccb;
3634 unsigned long flags;
3635
3636
3637 spin_lock_irqsave(USER_FREE_LIST_LOCK(adapter), flags);
3638
3639 if (list_empty(head)) {
3640
3641 con_log(CL_ANN, (KERN_WARNING
3642 "megaraid mbox: bug in cmm handler, lost resources\n"));
3643
3644 spin_unlock_irqrestore(USER_FREE_LIST_LOCK(adapter), flags);
3645
3646 return (-EINVAL);
3647 }
3648
3649 scb = list_entry(head->next, scb_t, list);
3650 list_del_init(&scb->list);
3651
3652 spin_unlock_irqrestore(USER_FREE_LIST_LOCK(adapter), flags);
3653
3654 scb->state = SCB_ACTIVE;
3655 scb->dma_type = MRAID_DMA_NONE;
3656 scb->dma_direction = PCI_DMA_NONE;
3657
3658 ccb = (mbox_ccb_t *)scb->ccb;
3659 mbox64 = (mbox64_t *)(unsigned long)kioc->cmdbuf;
3660 raw_mbox = (uint8_t *)&mbox64->mbox32;
3661
3662 memcpy(ccb->mbox64, mbox64, sizeof(mbox64_t));
3663
3664 scb->gp = (unsigned long)kioc;
3665
3666
3667
3668
3669
3670 if (raw_mbox[0] == FC_DEL_LOGDRV && raw_mbox[2] == OP_DEL_LOGDRV) {
3671
3672 if (wait_till_fw_empty(adapter)) {
3673 con_log(CL_ANN, (KERN_NOTICE
3674 "megaraid mbox: LD delete, timed out\n"));
3675
3676 kioc->status = -ETIME;
3677
3678 scb->status = -1;
3679
3680 megaraid_mbox_mm_done(adapter, scb);
3681
3682 return (-ETIME);
3683 }
3684
3685 INIT_LIST_HEAD(&scb->list);
3686
3687 scb->state = SCB_ISSUED;
3688 if (mbox_post_cmd(adapter, scb) != 0) {
3689
3690 con_log(CL_ANN, (KERN_NOTICE
3691 "megaraid mbox: LD delete, mailbox busy\n"));
3692
3693 kioc->status = -EBUSY;
3694
3695 scb->status = -1;
3696
3697 megaraid_mbox_mm_done(adapter, scb);
3698
3699 return (-EBUSY);
3700 }
3701
3702 return 0;
3703 }
3704
3705
3706 megaraid_mbox_runpendq(adapter, scb);
3707
3708 return 0;
3709}
3710
3711
3712static int
3713wait_till_fw_empty(adapter_t *adapter)
3714{
3715 unsigned long flags = 0;
3716 int i;
3717
3718
3719
3720
3721
3722 spin_lock_irqsave(&adapter->lock, flags);
3723 adapter->quiescent++;
3724 spin_unlock_irqrestore(&adapter->lock, flags);
3725
3726
3727
3728
3729
3730 for (i = 0; i < 60 && adapter->outstanding_cmds; i++) {
3731 con_log(CL_DLEVEL1, (KERN_INFO
3732 "megaraid: FW has %d pending commands\n",
3733 adapter->outstanding_cmds));
3734
3735 msleep(1000);
3736 }
3737
3738 return adapter->outstanding_cmds;
3739}
3740
3741
3742
3743
3744
3745
3746
3747
3748
3749
3750static void
3751megaraid_mbox_mm_done(adapter_t *adapter, scb_t *scb)
3752{
3753 uioc_t *kioc;
3754 mbox64_t *mbox64;
3755 uint8_t *raw_mbox;
3756 unsigned long flags;
3757
3758 kioc = (uioc_t *)scb->gp;
3759 mbox64 = (mbox64_t *)(unsigned long)kioc->cmdbuf;
3760 mbox64->mbox32.status = scb->status;
3761 raw_mbox = (uint8_t *)&mbox64->mbox32;
3762
3763
3764
3765 scb->state = SCB_FREE;
3766 scb->scp = NULL;
3767
3768 spin_lock_irqsave(USER_FREE_LIST_LOCK(adapter), flags);
3769
3770 list_add(&scb->list, &adapter->uscb_pool);
3771
3772 spin_unlock_irqrestore(USER_FREE_LIST_LOCK(adapter), flags);
3773
3774
3775
3776 if (raw_mbox[0] == FC_DEL_LOGDRV && raw_mbox[2] == OP_DEL_LOGDRV) {
3777
3778 adapter->quiescent--;
3779
3780 megaraid_mbox_runpendq(adapter, NULL);
3781 }
3782
3783 kioc->done(kioc);
3784
3785 return;
3786}
3787
3788
3789
3790
3791
3792
3793
3794static int
3795gather_hbainfo(adapter_t *adapter, mraid_hba_info_t *hinfo)
3796{
3797 uint8_t dmajor;
3798
3799 dmajor = megaraid_mbox_version[0];
3800
3801 hinfo->pci_vendor_id = adapter->pdev->vendor;
3802 hinfo->pci_device_id = adapter->pdev->device;
3803 hinfo->subsys_vendor_id = adapter->pdev->subsystem_vendor;
3804 hinfo->subsys_device_id = adapter->pdev->subsystem_device;
3805
3806 hinfo->pci_bus = adapter->pdev->bus->number;
3807 hinfo->pci_dev_fn = adapter->pdev->devfn;
3808 hinfo->pci_slot = PCI_SLOT(adapter->pdev->devfn);
3809 hinfo->irq = adapter->host->irq;
3810 hinfo->baseport = ADAP2RAIDDEV(adapter)->baseport;
3811
3812 hinfo->unique_id = (hinfo->pci_bus << 8) | adapter->pdev->devfn;
3813 hinfo->host_no = adapter->host->host_no;
3814
3815 return 0;
3816}
3817
3818
3819
3820
3821
3822
3823
3824
3825
3826
3827
3828
3829
3830
3831
3832
3833
3834
3835
3836static int
3837megaraid_sysfs_alloc_resources(adapter_t *adapter)
3838{
3839 mraid_device_t *raid_dev = ADAP2RAIDDEV(adapter);
3840 int rval = 0;
3841
3842 raid_dev->sysfs_uioc = kmalloc(sizeof(uioc_t), GFP_KERNEL);
3843
3844 raid_dev->sysfs_mbox64 = kmalloc(sizeof(mbox64_t), GFP_KERNEL);
3845
3846 raid_dev->sysfs_buffer = pci_alloc_consistent(adapter->pdev,
3847 PAGE_SIZE, &raid_dev->sysfs_buffer_dma);
3848
3849 if (!raid_dev->sysfs_uioc || !raid_dev->sysfs_mbox64 ||
3850 !raid_dev->sysfs_buffer) {
3851
3852 con_log(CL_ANN, (KERN_WARNING
3853 "megaraid: out of memory, %s %d\n", __func__,
3854 __LINE__));
3855
3856 rval = -ENOMEM;
3857
3858 megaraid_sysfs_free_resources(adapter);
3859 }
3860
3861 mutex_init(&raid_dev->sysfs_mtx);
3862
3863 init_waitqueue_head(&raid_dev->sysfs_wait_q);
3864
3865 return rval;
3866}
3867
3868
3869
3870
3871
3872
3873
3874
3875static void
3876megaraid_sysfs_free_resources(adapter_t *adapter)
3877{
3878 mraid_device_t *raid_dev = ADAP2RAIDDEV(adapter);
3879
3880 kfree(raid_dev->sysfs_uioc);
3881 kfree(raid_dev->sysfs_mbox64);
3882
3883 if (raid_dev->sysfs_buffer) {
3884 pci_free_consistent(adapter->pdev, PAGE_SIZE,
3885 raid_dev->sysfs_buffer, raid_dev->sysfs_buffer_dma);
3886 }
3887}
3888
3889
3890
3891
3892
3893
3894
3895
3896static void
3897megaraid_sysfs_get_ldmap_done(uioc_t *uioc)
3898{
3899 adapter_t *adapter = (adapter_t *)uioc->buf_vaddr;
3900 mraid_device_t *raid_dev = ADAP2RAIDDEV(adapter);
3901
3902 uioc->status = 0;
3903
3904 wake_up(&raid_dev->sysfs_wait_q);
3905}
3906
3907
3908
3909
3910
3911
3912
3913
3914
3915static void
3916megaraid_sysfs_get_ldmap_timeout(struct timer_list *t)
3917{
3918 struct uioc_timeout *timeout = from_timer(timeout, t, timer);
3919 uioc_t *uioc = timeout->uioc;
3920 adapter_t *adapter = (adapter_t *)uioc->buf_vaddr;
3921 mraid_device_t *raid_dev = ADAP2RAIDDEV(adapter);
3922
3923 uioc->status = -ETIME;
3924
3925 wake_up(&raid_dev->sysfs_wait_q);
3926}
3927
3928
3929
3930
3931
3932
3933
3934
3935
3936
3937
3938
3939
3940
3941
3942
3943
3944
3945
3946static int
3947megaraid_sysfs_get_ldmap(adapter_t *adapter)
3948{
3949 mraid_device_t *raid_dev = ADAP2RAIDDEV(adapter);
3950 uioc_t *uioc;
3951 mbox64_t *mbox64;
3952 mbox_t *mbox;
3953 char *raw_mbox;
3954 struct uioc_timeout timeout;
3955 caddr_t ldmap;
3956 int rval = 0;
3957
3958
3959
3960
3961 mutex_lock(&raid_dev->sysfs_mtx);
3962
3963 uioc = raid_dev->sysfs_uioc;
3964 mbox64 = raid_dev->sysfs_mbox64;
3965 ldmap = raid_dev->sysfs_buffer;
3966
3967 memset(uioc, 0, sizeof(uioc_t));
3968 memset(mbox64, 0, sizeof(mbox64_t));
3969 memset(ldmap, 0, sizeof(raid_dev->curr_ldmap));
3970
3971 mbox = &mbox64->mbox32;
3972 raw_mbox = (char *)mbox;
3973 uioc->cmdbuf = (uint64_t)(unsigned long)mbox64;
3974 uioc->buf_vaddr = (caddr_t)adapter;
3975 uioc->status = -ENODATA;
3976 uioc->done = megaraid_sysfs_get_ldmap_done;
3977
3978
3979
3980
3981
3982 mbox->xferaddr = (uint32_t)raid_dev->sysfs_buffer_dma;
3983
3984 raw_mbox[0] = FC_DEL_LOGDRV;
3985 raw_mbox[2] = OP_GET_LDID_MAP;
3986
3987
3988
3989
3990 timeout.uioc = uioc;
3991 timer_setup_on_stack(&timeout.timer,
3992 megaraid_sysfs_get_ldmap_timeout, 0);
3993
3994 timeout.timer.expires = jiffies + 60 * HZ;
3995 add_timer(&timeout.timer);
3996
3997
3998
3999
4000 rval = megaraid_mbox_mm_command(adapter, uioc);
4001
4002 if (rval == 0) {
4003 wait_event(raid_dev->sysfs_wait_q, (uioc->status != -ENODATA));
4004
4005
4006
4007
4008 if (uioc->status == -ETIME) {
4009 con_log(CL_ANN, (KERN_NOTICE
4010 "megaraid: sysfs get ld map timed out\n"));
4011
4012 rval = -ETIME;
4013 }
4014 else {
4015 rval = mbox->status;
4016 }
4017
4018 if (rval == 0) {
4019 memcpy(raid_dev->curr_ldmap, ldmap,
4020 sizeof(raid_dev->curr_ldmap));
4021 }
4022 else {
4023 con_log(CL_ANN, (KERN_NOTICE
4024 "megaraid: get ld map failed with %x\n", rval));
4025 }
4026 }
4027 else {
4028 con_log(CL_ANN, (KERN_NOTICE
4029 "megaraid: could not issue ldmap command:%x\n", rval));
4030 }
4031
4032
4033 del_timer_sync(&timeout.timer);
4034 destroy_timer_on_stack(&timeout.timer);
4035
4036 mutex_unlock(&raid_dev->sysfs_mtx);
4037
4038 return rval;
4039}
4040
4041
4042
4043
4044
4045
4046
4047
4048
4049
4050
4051static ssize_t
4052megaraid_sysfs_show_app_hndl(struct device *dev, struct device_attribute *attr,
4053 char *buf)
4054{
4055 struct Scsi_Host *shost = class_to_shost(dev);
4056 adapter_t *adapter = (adapter_t *)SCSIHOST2ADAP(shost);
4057 uint32_t app_hndl;
4058
4059 app_hndl = mraid_mm_adapter_app_handle(adapter->unique_id);
4060
4061 return snprintf(buf, 8, "%u\n", app_hndl);
4062}
4063
4064
4065
4066
4067
4068
4069
4070
4071
4072
4073
4074
4075
4076
4077
4078
4079
4080static ssize_t
4081megaraid_sysfs_show_ldnum(struct device *dev, struct device_attribute *attr, char *buf)
4082{
4083 struct scsi_device *sdev = to_scsi_device(dev);
4084 adapter_t *adapter = (adapter_t *)SCSIHOST2ADAP(sdev->host);
4085 mraid_device_t *raid_dev = ADAP2RAIDDEV(adapter);
4086 int scsi_id = -1;
4087 int logical_drv = -1;
4088 int ldid_map = -1;
4089 uint32_t app_hndl = 0;
4090 int mapped_sdev_id;
4091 int rval;
4092 int i;
4093
4094 if (raid_dev->random_del_supported &&
4095 MRAID_IS_LOGICAL_SDEV(adapter, sdev)) {
4096
4097 rval = megaraid_sysfs_get_ldmap(adapter);
4098 if (rval == 0) {
4099
4100 for (i = 0; i < MAX_LOGICAL_DRIVES_40LD; i++) {
4101
4102 mapped_sdev_id = sdev->id;
4103
4104 if (sdev->id > adapter->init_id) {
4105 mapped_sdev_id -= 1;
4106 }
4107
4108 if (raid_dev->curr_ldmap[i] == mapped_sdev_id) {
4109
4110 scsi_id = sdev->id;
4111
4112 logical_drv = i;
4113
4114 ldid_map = raid_dev->curr_ldmap[i];
4115
4116 app_hndl = mraid_mm_adapter_app_handle(
4117 adapter->unique_id);
4118
4119 break;
4120 }
4121 }
4122 }
4123 else {
4124 con_log(CL_ANN, (KERN_NOTICE
4125 "megaraid: sysfs get ld map failed: %x\n",
4126 rval));
4127 }
4128 }
4129
4130 return snprintf(buf, 36, "%d %d %d %d\n", scsi_id, logical_drv,
4131 ldid_map, app_hndl);
4132}
4133
4134
4135
4136
4137
4138module_init(megaraid_init);
4139module_exit(megaraid_exit);
4140
4141
4142