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32#include <linux/kernel.h>
33#include <linux/types.h>
34#include <linux/pci.h>
35#include <linux/list.h>
36#include <linux/moduleparam.h>
37#include <linux/module.h>
38#include <linux/spinlock.h>
39#include <linux/interrupt.h>
40#include <linux/delay.h>
41#include <linux/uio.h>
42#include <linux/uaccess.h>
43#include <linux/fs.h>
44#include <linux/compat.h>
45#include <linux/blkdev.h>
46#include <linux/mutex.h>
47#include <linux/poll.h>
48
49#include <scsi/scsi.h>
50#include <scsi/scsi_cmnd.h>
51#include <scsi/scsi_device.h>
52#include <scsi/scsi_host.h>
53
54#include "megaraid_sas_fusion.h"
55#include "megaraid_sas.h"
56
57extern void megasas_free_cmds(struct megasas_instance *instance);
58extern struct megasas_cmd *megasas_get_cmd(struct megasas_instance
59 *instance);
60extern void
61megasas_complete_cmd(struct megasas_instance *instance,
62 struct megasas_cmd *cmd, u8 alt_status);
63int megasas_is_ldio(struct scsi_cmnd *cmd);
64int
65wait_and_poll(struct megasas_instance *instance, struct megasas_cmd *cmd);
66
67void
68megasas_return_cmd(struct megasas_instance *instance, struct megasas_cmd *cmd);
69int megasas_alloc_cmds(struct megasas_instance *instance);
70int
71megasas_clear_intr_fusion(struct megasas_register_set __iomem *regs);
72int
73megasas_issue_polled(struct megasas_instance *instance,
74 struct megasas_cmd *cmd);
75
76u8
77MR_BuildRaidContext(struct megasas_instance *instance,
78 struct IO_REQUEST_INFO *io_info,
79 struct RAID_CONTEXT *pRAID_Context,
80 struct MR_FW_RAID_MAP_ALL *map);
81u16 MR_TargetIdToLdGet(u32 ldTgtId, struct MR_FW_RAID_MAP_ALL *map);
82struct MR_LD_RAID *MR_LdRaidGet(u32 ld, struct MR_FW_RAID_MAP_ALL *map);
83
84u16 MR_GetLDTgtId(u32 ld, struct MR_FW_RAID_MAP_ALL *map);
85
86void
87megasas_check_and_restore_queue_depth(struct megasas_instance *instance);
88
89u16 get_updated_dev_handle(struct LD_LOAD_BALANCE_INFO *lbInfo,
90 struct IO_REQUEST_INFO *in_info);
91int megasas_transition_to_ready(struct megasas_instance *instance, int ocr);
92void megaraid_sas_kill_hba(struct megasas_instance *instance);
93
94extern u32 megasas_dbg_lvl;
95extern int resetwaittime;
96
97
98
99
100
101void
102megasas_enable_intr_fusion(struct megasas_instance *instance)
103{
104 struct megasas_register_set __iomem *regs;
105 regs = instance->reg_set;
106
107 writel(~0, ®s->outbound_intr_status);
108 readl(®s->outbound_intr_status);
109
110 writel(~MFI_FUSION_ENABLE_INTERRUPT_MASK, &(regs)->outbound_intr_mask);
111
112
113 readl(®s->outbound_intr_mask);
114 instance->mask_interrupts = 0;
115}
116
117
118
119
120
121void
122megasas_disable_intr_fusion(struct megasas_instance *instance)
123{
124 u32 mask = 0xFFFFFFFF;
125 u32 status;
126 struct megasas_register_set __iomem *regs;
127 regs = instance->reg_set;
128 instance->mask_interrupts = 1;
129
130 writel(mask, ®s->outbound_intr_mask);
131
132 status = readl(®s->outbound_intr_mask);
133}
134
135int
136megasas_clear_intr_fusion(struct megasas_register_set __iomem *regs)
137{
138 u32 status;
139
140
141
142 status = readl(®s->outbound_intr_status);
143
144 if (status & 1) {
145 writel(status, ®s->outbound_intr_status);
146 readl(®s->outbound_intr_status);
147 return 1;
148 }
149 if (!(status & MFI_FUSION_ENABLE_INTERRUPT_MASK))
150 return 0;
151
152 return 1;
153}
154
155
156
157
158
159
160
161struct megasas_cmd_fusion *megasas_get_cmd_fusion(struct megasas_instance
162 *instance)
163{
164 unsigned long flags;
165 struct fusion_context *fusion =
166 (struct fusion_context *)instance->ctrl_context;
167 struct megasas_cmd_fusion *cmd = NULL;
168
169 spin_lock_irqsave(&fusion->cmd_pool_lock, flags);
170
171 if (!list_empty(&fusion->cmd_pool)) {
172 cmd = list_entry((&fusion->cmd_pool)->next,
173 struct megasas_cmd_fusion, list);
174 list_del_init(&cmd->list);
175 } else {
176 printk(KERN_ERR "megasas: Command pool (fusion) empty!\n");
177 }
178
179 spin_unlock_irqrestore(&fusion->cmd_pool_lock, flags);
180 return cmd;
181}
182
183
184
185
186
187
188static inline void
189megasas_return_cmd_fusion(struct megasas_instance *instance,
190 struct megasas_cmd_fusion *cmd)
191{
192 unsigned long flags;
193 struct fusion_context *fusion =
194 (struct fusion_context *)instance->ctrl_context;
195
196 spin_lock_irqsave(&fusion->cmd_pool_lock, flags);
197
198 cmd->scmd = NULL;
199 cmd->sync_cmd_idx = (u32)ULONG_MAX;
200 list_add_tail(&cmd->list, &fusion->cmd_pool);
201
202 spin_unlock_irqrestore(&fusion->cmd_pool_lock, flags);
203}
204
205
206
207
208
209static void megasas_teardown_frame_pool_fusion(
210 struct megasas_instance *instance)
211{
212 int i;
213 struct fusion_context *fusion = instance->ctrl_context;
214
215 u16 max_cmd = instance->max_fw_cmds;
216
217 struct megasas_cmd_fusion *cmd;
218
219 if (!fusion->sg_dma_pool || !fusion->sense_dma_pool) {
220 printk(KERN_ERR "megasas: dma pool is null. SG Pool %p, "
221 "sense pool : %p\n", fusion->sg_dma_pool,
222 fusion->sense_dma_pool);
223 return;
224 }
225
226
227
228
229 for (i = 0; i < max_cmd; i++) {
230
231 cmd = fusion->cmd_list[i];
232
233 if (cmd->sg_frame)
234 pci_pool_free(fusion->sg_dma_pool, cmd->sg_frame,
235 cmd->sg_frame_phys_addr);
236
237 if (cmd->sense)
238 pci_pool_free(fusion->sense_dma_pool, cmd->sense,
239 cmd->sense_phys_addr);
240 }
241
242
243
244
245 pci_pool_destroy(fusion->sg_dma_pool);
246 pci_pool_destroy(fusion->sense_dma_pool);
247
248 fusion->sg_dma_pool = NULL;
249 fusion->sense_dma_pool = NULL;
250}
251
252
253
254
255
256void
257megasas_free_cmds_fusion(struct megasas_instance *instance)
258{
259 int i;
260 struct fusion_context *fusion = instance->ctrl_context;
261
262 u32 max_cmds, req_sz, reply_sz, io_frames_sz;
263
264
265 req_sz = fusion->request_alloc_sz;
266 reply_sz = fusion->reply_alloc_sz;
267 io_frames_sz = fusion->io_frames_alloc_sz;
268
269 max_cmds = instance->max_fw_cmds;
270
271
272 if (fusion->req_frames_desc)
273 dma_free_coherent(&instance->pdev->dev, req_sz,
274 fusion->req_frames_desc,
275 fusion->req_frames_desc_phys);
276
277 if (fusion->reply_frames_desc) {
278 pci_pool_free(fusion->reply_frames_desc_pool,
279 fusion->reply_frames_desc,
280 fusion->reply_frames_desc_phys);
281 pci_pool_destroy(fusion->reply_frames_desc_pool);
282 }
283
284 if (fusion->io_request_frames) {
285 pci_pool_free(fusion->io_request_frames_pool,
286 fusion->io_request_frames,
287 fusion->io_request_frames_phys);
288 pci_pool_destroy(fusion->io_request_frames_pool);
289 }
290
291
292 megasas_teardown_frame_pool_fusion(instance);
293
294
295 for (i = 0; i < max_cmds; i++)
296 kfree(fusion->cmd_list[i]);
297
298
299 kfree(fusion->cmd_list);
300 fusion->cmd_list = NULL;
301
302 INIT_LIST_HEAD(&fusion->cmd_pool);
303}
304
305
306
307
308
309
310static int megasas_create_frame_pool_fusion(struct megasas_instance *instance)
311{
312 int i;
313 u32 max_cmd;
314 struct fusion_context *fusion;
315 struct megasas_cmd_fusion *cmd;
316 u32 total_sz_chain_frame;
317
318 fusion = instance->ctrl_context;
319 max_cmd = instance->max_fw_cmds;
320
321 total_sz_chain_frame = MEGASAS_MAX_SZ_CHAIN_FRAME;
322
323
324
325
326
327 fusion->sg_dma_pool = pci_pool_create("megasas sg pool fusion",
328 instance->pdev,
329 total_sz_chain_frame, 4,
330 0);
331 if (!fusion->sg_dma_pool) {
332 printk(KERN_DEBUG "megasas: failed to setup request pool "
333 "fusion\n");
334 return -ENOMEM;
335 }
336 fusion->sense_dma_pool = pci_pool_create("megasas sense pool fusion",
337 instance->pdev,
338 SCSI_SENSE_BUFFERSIZE, 64, 0);
339
340 if (!fusion->sense_dma_pool) {
341 printk(KERN_DEBUG "megasas: failed to setup sense pool "
342 "fusion\n");
343 pci_pool_destroy(fusion->sg_dma_pool);
344 fusion->sg_dma_pool = NULL;
345 return -ENOMEM;
346 }
347
348
349
350
351 for (i = 0; i < max_cmd; i++) {
352
353 cmd = fusion->cmd_list[i];
354
355 cmd->sg_frame = pci_pool_alloc(fusion->sg_dma_pool,
356 GFP_KERNEL,
357 &cmd->sg_frame_phys_addr);
358
359 cmd->sense = pci_pool_alloc(fusion->sense_dma_pool,
360 GFP_KERNEL, &cmd->sense_phys_addr);
361
362
363
364
365 if (!cmd->sg_frame || !cmd->sense) {
366 printk(KERN_DEBUG "megasas: pci_pool_alloc failed\n");
367 megasas_teardown_frame_pool_fusion(instance);
368 return -ENOMEM;
369 }
370 }
371 return 0;
372}
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390int
391megasas_alloc_cmds_fusion(struct megasas_instance *instance)
392{
393 int i, j, count;
394 u32 max_cmd, io_frames_sz;
395 struct fusion_context *fusion;
396 struct megasas_cmd_fusion *cmd;
397 union MPI2_REPLY_DESCRIPTORS_UNION *reply_desc;
398 u32 offset;
399 dma_addr_t io_req_base_phys;
400 u8 *io_req_base;
401
402 fusion = instance->ctrl_context;
403
404 max_cmd = instance->max_fw_cmds;
405
406 fusion->req_frames_desc =
407 dma_alloc_coherent(&instance->pdev->dev,
408 fusion->request_alloc_sz,
409 &fusion->req_frames_desc_phys, GFP_KERNEL);
410
411 if (!fusion->req_frames_desc) {
412 printk(KERN_ERR "megasas; Could not allocate memory for "
413 "request_frames\n");
414 goto fail_req_desc;
415 }
416
417 count = instance->msix_vectors > 0 ? instance->msix_vectors : 1;
418 fusion->reply_frames_desc_pool =
419 pci_pool_create("reply_frames pool", instance->pdev,
420 fusion->reply_alloc_sz * count, 16, 0);
421
422 if (!fusion->reply_frames_desc_pool) {
423 printk(KERN_ERR "megasas; Could not allocate memory for "
424 "reply_frame pool\n");
425 goto fail_reply_desc;
426 }
427
428 fusion->reply_frames_desc =
429 pci_pool_alloc(fusion->reply_frames_desc_pool, GFP_KERNEL,
430 &fusion->reply_frames_desc_phys);
431 if (!fusion->reply_frames_desc) {
432 printk(KERN_ERR "megasas; Could not allocate memory for "
433 "reply_frame pool\n");
434 pci_pool_destroy(fusion->reply_frames_desc_pool);
435 goto fail_reply_desc;
436 }
437
438 reply_desc = fusion->reply_frames_desc;
439 for (i = 0; i < fusion->reply_q_depth * count; i++, reply_desc++)
440 reply_desc->Words = ULLONG_MAX;
441
442 io_frames_sz = fusion->io_frames_alloc_sz;
443
444 fusion->io_request_frames_pool =
445 pci_pool_create("io_request_frames pool", instance->pdev,
446 fusion->io_frames_alloc_sz, 16, 0);
447
448 if (!fusion->io_request_frames_pool) {
449 printk(KERN_ERR "megasas: Could not allocate memory for "
450 "io_request_frame pool\n");
451 goto fail_io_frames;
452 }
453
454 fusion->io_request_frames =
455 pci_pool_alloc(fusion->io_request_frames_pool, GFP_KERNEL,
456 &fusion->io_request_frames_phys);
457 if (!fusion->io_request_frames) {
458 printk(KERN_ERR "megasas: Could not allocate memory for "
459 "io_request_frames frames\n");
460 pci_pool_destroy(fusion->io_request_frames_pool);
461 goto fail_io_frames;
462 }
463
464
465
466
467
468
469 fusion->cmd_list = kzalloc(sizeof(struct megasas_cmd_fusion *)
470 * max_cmd, GFP_KERNEL);
471
472 if (!fusion->cmd_list) {
473 printk(KERN_DEBUG "megasas: out of memory. Could not alloc "
474 "memory for cmd_list_fusion\n");
475 goto fail_cmd_list;
476 }
477
478 max_cmd = instance->max_fw_cmds;
479 for (i = 0; i < max_cmd; i++) {
480 fusion->cmd_list[i] = kmalloc(sizeof(struct megasas_cmd_fusion),
481 GFP_KERNEL);
482 if (!fusion->cmd_list[i]) {
483 printk(KERN_ERR "Could not alloc cmd list fusion\n");
484
485 for (j = 0; j < i; j++)
486 kfree(fusion->cmd_list[j]);
487
488 kfree(fusion->cmd_list);
489 fusion->cmd_list = NULL;
490 goto fail_cmd_list;
491 }
492 }
493
494
495 io_req_base = fusion->io_request_frames +
496 MEGA_MPI2_RAID_DEFAULT_IO_FRAME_SIZE;
497 io_req_base_phys = fusion->io_request_frames_phys +
498 MEGA_MPI2_RAID_DEFAULT_IO_FRAME_SIZE;
499
500
501
502
503
504
505 for (i = 0; i < max_cmd; i++) {
506 cmd = fusion->cmd_list[i];
507 offset = MEGA_MPI2_RAID_DEFAULT_IO_FRAME_SIZE * i;
508 memset(cmd, 0, sizeof(struct megasas_cmd_fusion));
509 cmd->index = i + 1;
510 cmd->scmd = NULL;
511 cmd->sync_cmd_idx = (u32)ULONG_MAX;
512 cmd->instance = instance;
513 cmd->io_request =
514 (struct MPI2_RAID_SCSI_IO_REQUEST *)
515 (io_req_base + offset);
516 memset(cmd->io_request, 0,
517 sizeof(struct MPI2_RAID_SCSI_IO_REQUEST));
518 cmd->io_request_phys_addr = io_req_base_phys + offset;
519
520 list_add_tail(&cmd->list, &fusion->cmd_pool);
521 }
522
523
524
525
526 if (megasas_create_frame_pool_fusion(instance)) {
527 printk(KERN_DEBUG "megasas: Error creating frame DMA pool\n");
528 megasas_free_cmds_fusion(instance);
529 goto fail_req_desc;
530 }
531
532 return 0;
533
534fail_cmd_list:
535 pci_pool_free(fusion->io_request_frames_pool, fusion->io_request_frames,
536 fusion->io_request_frames_phys);
537 pci_pool_destroy(fusion->io_request_frames_pool);
538fail_io_frames:
539 dma_free_coherent(&instance->pdev->dev, fusion->request_alloc_sz,
540 fusion->reply_frames_desc,
541 fusion->reply_frames_desc_phys);
542 pci_pool_free(fusion->reply_frames_desc_pool,
543 fusion->reply_frames_desc,
544 fusion->reply_frames_desc_phys);
545 pci_pool_destroy(fusion->reply_frames_desc_pool);
546
547fail_reply_desc:
548 dma_free_coherent(&instance->pdev->dev, fusion->request_alloc_sz,
549 fusion->req_frames_desc,
550 fusion->req_frames_desc_phys);
551fail_req_desc:
552 return -ENOMEM;
553}
554
555
556
557
558
559
560
561
562int
563wait_and_poll(struct megasas_instance *instance, struct megasas_cmd *cmd)
564{
565 int i;
566 struct megasas_header *frame_hdr = &cmd->frame->hdr;
567
568 u32 msecs = MFI_POLL_TIMEOUT_SECS * 1000;
569
570
571
572
573 for (i = 0; (i < msecs) && (frame_hdr->cmd_status == 0xff); i += 20) {
574 rmb();
575 msleep(20);
576 }
577
578 if (frame_hdr->cmd_status == 0xff)
579 return -ETIME;
580
581 return 0;
582}
583
584
585
586
587
588
589
590int
591megasas_ioc_init_fusion(struct megasas_instance *instance)
592{
593 struct megasas_init_frame *init_frame;
594 struct MPI2_IOC_INIT_REQUEST *IOCInitMessage;
595 dma_addr_t ioc_init_handle;
596 struct megasas_cmd *cmd;
597 u8 ret;
598 struct fusion_context *fusion;
599 union MEGASAS_REQUEST_DESCRIPTOR_UNION *req_desc;
600 int i;
601 struct megasas_header *frame_hdr;
602
603 fusion = instance->ctrl_context;
604
605 cmd = megasas_get_cmd(instance);
606
607 if (!cmd) {
608 printk(KERN_ERR "Could not allocate cmd for INIT Frame\n");
609 ret = 1;
610 goto fail_get_cmd;
611 }
612
613 IOCInitMessage =
614 dma_alloc_coherent(&instance->pdev->dev,
615 sizeof(struct MPI2_IOC_INIT_REQUEST),
616 &ioc_init_handle, GFP_KERNEL);
617
618 if (!IOCInitMessage) {
619 printk(KERN_ERR "Could not allocate memory for "
620 "IOCInitMessage\n");
621 ret = 1;
622 goto fail_fw_init;
623 }
624
625 memset(IOCInitMessage, 0, sizeof(struct MPI2_IOC_INIT_REQUEST));
626
627 IOCInitMessage->Function = MPI2_FUNCTION_IOC_INIT;
628 IOCInitMessage->WhoInit = MPI2_WHOINIT_HOST_DRIVER;
629 IOCInitMessage->MsgVersion = MPI2_VERSION;
630 IOCInitMessage->HeaderVersion = MPI2_HEADER_VERSION;
631 IOCInitMessage->SystemRequestFrameSize =
632 MEGA_MPI2_RAID_DEFAULT_IO_FRAME_SIZE / 4;
633
634 IOCInitMessage->ReplyDescriptorPostQueueDepth = fusion->reply_q_depth;
635 IOCInitMessage->ReplyDescriptorPostQueueAddress =
636 fusion->reply_frames_desc_phys;
637 IOCInitMessage->SystemRequestFrameBaseAddress =
638 fusion->io_request_frames_phys;
639 IOCInitMessage->HostMSIxVectors = instance->msix_vectors;
640 init_frame = (struct megasas_init_frame *)cmd->frame;
641 memset(init_frame, 0, MEGAMFI_FRAME_SIZE);
642
643 frame_hdr = &cmd->frame->hdr;
644 frame_hdr->cmd_status = 0xFF;
645 frame_hdr->flags |= MFI_FRAME_DONT_POST_IN_REPLY_QUEUE;
646
647 init_frame->cmd = MFI_CMD_INIT;
648 init_frame->cmd_status = 0xFF;
649
650
651 if ((instance->pdev->device == PCI_DEVICE_ID_LSI_INVADER) ||
652 (instance->pdev->device == PCI_DEVICE_ID_LSI_FURY))
653 init_frame->driver_operations.
654 mfi_capabilities.support_additional_msix = 1;
655
656 init_frame->queue_info_new_phys_addr_lo = ioc_init_handle;
657 init_frame->data_xfer_len = sizeof(struct MPI2_IOC_INIT_REQUEST);
658
659 req_desc =
660 (union MEGASAS_REQUEST_DESCRIPTOR_UNION *)fusion->req_frames_desc;
661
662 req_desc->Words = cmd->frame_phys_addr;
663 req_desc->MFAIo.RequestFlags =
664 (MEGASAS_REQ_DESCRIPT_FLAGS_MFA <<
665 MEGASAS_REQ_DESCRIPT_FLAGS_TYPE_SHIFT);
666
667
668
669
670 instance->instancet->disable_intr(instance);
671
672 for (i = 0; i < (10 * 1000); i += 20) {
673 if (readl(&instance->reg_set->doorbell) & 1)
674 msleep(20);
675 else
676 break;
677 }
678
679 instance->instancet->fire_cmd(instance, req_desc->u.low,
680 req_desc->u.high, instance->reg_set);
681
682 wait_and_poll(instance, cmd);
683
684 frame_hdr = &cmd->frame->hdr;
685 if (frame_hdr->cmd_status != 0) {
686 ret = 1;
687 goto fail_fw_init;
688 }
689 printk(KERN_ERR "megasas:IOC Init cmd success\n");
690
691 ret = 0;
692
693fail_fw_init:
694 megasas_return_cmd(instance, cmd);
695 if (IOCInitMessage)
696 dma_free_coherent(&instance->pdev->dev,
697 sizeof(struct MPI2_IOC_INIT_REQUEST),
698 IOCInitMessage, ioc_init_handle);
699fail_get_cmd:
700 return ret;
701}
702
703
704
705
706
707
708
709
710
711static int
712megasas_get_ld_map_info(struct megasas_instance *instance)
713{
714 int ret = 0;
715 struct megasas_cmd *cmd;
716 struct megasas_dcmd_frame *dcmd;
717 struct MR_FW_RAID_MAP_ALL *ci;
718 dma_addr_t ci_h = 0;
719 u32 size_map_info;
720 struct fusion_context *fusion;
721
722 cmd = megasas_get_cmd(instance);
723
724 if (!cmd) {
725 printk(KERN_DEBUG "megasas: Failed to get cmd for map info.\n");
726 return -ENOMEM;
727 }
728
729 fusion = instance->ctrl_context;
730
731 if (!fusion) {
732 megasas_return_cmd(instance, cmd);
733 return 1;
734 }
735
736 dcmd = &cmd->frame->dcmd;
737
738 size_map_info = sizeof(struct MR_FW_RAID_MAP) +
739 (sizeof(struct MR_LD_SPAN_MAP) *(MAX_LOGICAL_DRIVES - 1));
740
741 ci = fusion->ld_map[(instance->map_id & 1)];
742 ci_h = fusion->ld_map_phys[(instance->map_id & 1)];
743
744 if (!ci) {
745 printk(KERN_DEBUG "Failed to alloc mem for ld_map_info\n");
746 megasas_return_cmd(instance, cmd);
747 return -ENOMEM;
748 }
749
750 memset(ci, 0, sizeof(*ci));
751 memset(dcmd->mbox.b, 0, MFI_MBOX_SIZE);
752
753 dcmd->cmd = MFI_CMD_DCMD;
754 dcmd->cmd_status = 0xFF;
755 dcmd->sge_count = 1;
756 dcmd->flags = MFI_FRAME_DIR_READ;
757 dcmd->timeout = 0;
758 dcmd->pad_0 = 0;
759 dcmd->data_xfer_len = size_map_info;
760 dcmd->opcode = MR_DCMD_LD_MAP_GET_INFO;
761 dcmd->sgl.sge32[0].phys_addr = ci_h;
762 dcmd->sgl.sge32[0].length = size_map_info;
763
764 if (!megasas_issue_polled(instance, cmd))
765 ret = 0;
766 else {
767 printk(KERN_ERR "megasas: Get LD Map Info Failed\n");
768 ret = -1;
769 }
770
771 megasas_return_cmd(instance, cmd);
772
773 return ret;
774}
775
776u8
777megasas_get_map_info(struct megasas_instance *instance)
778{
779 struct fusion_context *fusion = instance->ctrl_context;
780
781 fusion->fast_path_io = 0;
782 if (!megasas_get_ld_map_info(instance)) {
783 if (MR_ValidateMapInfo(instance)) {
784 fusion->fast_path_io = 1;
785 return 0;
786 }
787 }
788 return 1;
789}
790
791
792
793
794
795
796
797
798
799int
800megasas_sync_map_info(struct megasas_instance *instance)
801{
802 int ret = 0, i;
803 struct megasas_cmd *cmd;
804 struct megasas_dcmd_frame *dcmd;
805 u32 size_sync_info, num_lds;
806 struct fusion_context *fusion;
807 struct MR_LD_TARGET_SYNC *ci = NULL;
808 struct MR_FW_RAID_MAP_ALL *map;
809 struct MR_LD_RAID *raid;
810 struct MR_LD_TARGET_SYNC *ld_sync;
811 dma_addr_t ci_h = 0;
812 u32 size_map_info;
813
814 cmd = megasas_get_cmd(instance);
815
816 if (!cmd) {
817 printk(KERN_DEBUG "megasas: Failed to get cmd for sync"
818 "info.\n");
819 return -ENOMEM;
820 }
821
822 fusion = instance->ctrl_context;
823
824 if (!fusion) {
825 megasas_return_cmd(instance, cmd);
826 return 1;
827 }
828
829 map = fusion->ld_map[instance->map_id & 1];
830
831 num_lds = map->raidMap.ldCount;
832
833 dcmd = &cmd->frame->dcmd;
834
835 size_sync_info = sizeof(struct MR_LD_TARGET_SYNC) *num_lds;
836
837 memset(dcmd->mbox.b, 0, MFI_MBOX_SIZE);
838
839 ci = (struct MR_LD_TARGET_SYNC *)
840 fusion->ld_map[(instance->map_id - 1) & 1];
841 memset(ci, 0, sizeof(struct MR_FW_RAID_MAP_ALL));
842
843 ci_h = fusion->ld_map_phys[(instance->map_id - 1) & 1];
844
845 ld_sync = (struct MR_LD_TARGET_SYNC *)ci;
846
847 for (i = 0; i < num_lds; i++, ld_sync++) {
848 raid = MR_LdRaidGet(i, map);
849 ld_sync->targetId = MR_GetLDTgtId(i, map);
850 ld_sync->seqNum = raid->seqNum;
851 }
852
853 size_map_info = sizeof(struct MR_FW_RAID_MAP) +
854 (sizeof(struct MR_LD_SPAN_MAP) *(MAX_LOGICAL_DRIVES - 1));
855
856 dcmd->cmd = MFI_CMD_DCMD;
857 dcmd->cmd_status = 0xFF;
858 dcmd->sge_count = 1;
859 dcmd->flags = MFI_FRAME_DIR_WRITE;
860 dcmd->timeout = 0;
861 dcmd->pad_0 = 0;
862 dcmd->data_xfer_len = size_map_info;
863 dcmd->mbox.b[0] = num_lds;
864 dcmd->mbox.b[1] = MEGASAS_DCMD_MBOX_PEND_FLAG;
865 dcmd->opcode = MR_DCMD_LD_MAP_GET_INFO;
866 dcmd->sgl.sge32[0].phys_addr = ci_h;
867 dcmd->sgl.sge32[0].length = size_map_info;
868
869 instance->map_update_cmd = cmd;
870
871 instance->instancet->issue_dcmd(instance, cmd);
872
873 return ret;
874}
875
876
877
878
879
880
881
882static void
883megasas_display_intel_branding(struct megasas_instance *instance)
884{
885 if (instance->pdev->subsystem_vendor != PCI_VENDOR_ID_INTEL)
886 return;
887
888 switch (instance->pdev->device) {
889 case PCI_DEVICE_ID_LSI_INVADER:
890 switch (instance->pdev->subsystem_device) {
891 case MEGARAID_INTEL_RS3DC080_SSDID:
892 dev_info(&instance->pdev->dev, "scsi host %d: %s\n",
893 instance->host->host_no,
894 MEGARAID_INTEL_RS3DC080_BRANDING);
895 break;
896 case MEGARAID_INTEL_RS3DC040_SSDID:
897 dev_info(&instance->pdev->dev, "scsi host %d: %s\n",
898 instance->host->host_no,
899 MEGARAID_INTEL_RS3DC040_BRANDING);
900 break;
901 case MEGARAID_INTEL_RS3SC008_SSDID:
902 dev_info(&instance->pdev->dev, "scsi host %d: %s\n",
903 instance->host->host_no,
904 MEGARAID_INTEL_RS3SC008_BRANDING);
905 break;
906 case MEGARAID_INTEL_RS3MC044_SSDID:
907 dev_info(&instance->pdev->dev, "scsi host %d: %s\n",
908 instance->host->host_no,
909 MEGARAID_INTEL_RS3MC044_BRANDING);
910 break;
911 default:
912 break;
913 }
914 break;
915 case PCI_DEVICE_ID_LSI_FURY:
916 switch (instance->pdev->subsystem_device) {
917 case MEGARAID_INTEL_RS3WC080_SSDID:
918 dev_info(&instance->pdev->dev, "scsi host %d: %s\n",
919 instance->host->host_no,
920 MEGARAID_INTEL_RS3WC080_BRANDING);
921 break;
922 case MEGARAID_INTEL_RS3WC040_SSDID:
923 dev_info(&instance->pdev->dev, "scsi host %d: %s\n",
924 instance->host->host_no,
925 MEGARAID_INTEL_RS3WC040_BRANDING);
926 break;
927 default:
928 break;
929 }
930 break;
931 default:
932 break;
933 }
934}
935
936
937
938
939
940
941
942u32
943megasas_init_adapter_fusion(struct megasas_instance *instance)
944{
945 struct megasas_register_set __iomem *reg_set;
946 struct fusion_context *fusion;
947 u32 max_cmd;
948 int i = 0, count;
949
950 fusion = instance->ctrl_context;
951
952 reg_set = instance->reg_set;
953
954
955
956
957 instance->max_fw_cmds =
958 instance->instancet->read_fw_status_reg(reg_set) & 0x00FFFF;
959 instance->max_fw_cmds = min(instance->max_fw_cmds, (u16)1008);
960
961
962
963
964
965
966 instance->max_fw_cmds = instance->max_fw_cmds-1;
967
968 instance->max_mfi_cmds = MEGASAS_INT_CMDS;
969
970 max_cmd = instance->max_fw_cmds;
971
972 fusion->reply_q_depth = ((max_cmd + 1 + 15)/16)*16;
973
974 fusion->request_alloc_sz =
975 sizeof(union MEGASAS_REQUEST_DESCRIPTOR_UNION) *max_cmd;
976 fusion->reply_alloc_sz = sizeof(union MPI2_REPLY_DESCRIPTORS_UNION)
977 *(fusion->reply_q_depth);
978 fusion->io_frames_alloc_sz = MEGA_MPI2_RAID_DEFAULT_IO_FRAME_SIZE +
979 (MEGA_MPI2_RAID_DEFAULT_IO_FRAME_SIZE *
980 (max_cmd + 1));
981
982 fusion->max_sge_in_main_msg =
983 (MEGA_MPI2_RAID_DEFAULT_IO_FRAME_SIZE -
984 offsetof(struct MPI2_RAID_SCSI_IO_REQUEST, SGL))/16;
985
986 fusion->max_sge_in_chain =
987 MEGASAS_MAX_SZ_CHAIN_FRAME / sizeof(union MPI2_SGE_IO_UNION);
988
989 instance->max_num_sge = fusion->max_sge_in_main_msg +
990 fusion->max_sge_in_chain - 2;
991
992
993 fusion->chain_offset_mfi_pthru =
994 offsetof(struct MPI2_RAID_SCSI_IO_REQUEST, SGL)/16;
995
996 fusion->chain_offset_io_request =
997 (MEGA_MPI2_RAID_DEFAULT_IO_FRAME_SIZE -
998 sizeof(union MPI2_SGE_IO_UNION))/16;
999
1000 count = instance->msix_vectors > 0 ? instance->msix_vectors : 1;
1001 for (i = 0 ; i < count; i++)
1002 fusion->last_reply_idx[i] = 0;
1003
1004
1005
1006
1007
1008 if (megasas_alloc_cmds(instance))
1009 goto fail_alloc_mfi_cmds;
1010 if (megasas_alloc_cmds_fusion(instance))
1011 goto fail_alloc_cmds;
1012
1013 if (megasas_ioc_init_fusion(instance))
1014 goto fail_ioc_init;
1015
1016 megasas_display_intel_branding(instance);
1017
1018 instance->flag_ieee = 1;
1019
1020 fusion->map_sz = sizeof(struct MR_FW_RAID_MAP) +
1021 (sizeof(struct MR_LD_SPAN_MAP) *(MAX_LOGICAL_DRIVES - 1));
1022
1023 fusion->fast_path_io = 0;
1024
1025 for (i = 0; i < 2; i++) {
1026 fusion->ld_map[i] = dma_alloc_coherent(&instance->pdev->dev,
1027 fusion->map_sz,
1028 &fusion->ld_map_phys[i],
1029 GFP_KERNEL);
1030 if (!fusion->ld_map[i]) {
1031 printk(KERN_ERR "megasas: Could not allocate memory "
1032 "for map info\n");
1033 goto fail_map_info;
1034 }
1035 }
1036
1037 if (!megasas_get_map_info(instance))
1038 megasas_sync_map_info(instance);
1039
1040 return 0;
1041
1042fail_map_info:
1043 if (i == 1)
1044 dma_free_coherent(&instance->pdev->dev, fusion->map_sz,
1045 fusion->ld_map[0], fusion->ld_map_phys[0]);
1046fail_ioc_init:
1047 megasas_free_cmds_fusion(instance);
1048fail_alloc_cmds:
1049 megasas_free_cmds(instance);
1050fail_alloc_mfi_cmds:
1051 return 1;
1052}
1053
1054
1055
1056
1057
1058
1059
1060void
1061megasas_fire_cmd_fusion(struct megasas_instance *instance,
1062 dma_addr_t req_desc_lo,
1063 u32 req_desc_hi,
1064 struct megasas_register_set __iomem *regs)
1065{
1066 unsigned long flags;
1067
1068 spin_lock_irqsave(&instance->hba_lock, flags);
1069
1070 writel(req_desc_lo,
1071 &(regs)->inbound_low_queue_port);
1072 writel(req_desc_hi, &(regs)->inbound_high_queue_port);
1073 spin_unlock_irqrestore(&instance->hba_lock, flags);
1074}
1075
1076
1077
1078
1079
1080
1081
1082
1083void
1084map_cmd_status(struct megasas_cmd_fusion *cmd, u8 status, u8 ext_status)
1085{
1086
1087 switch (status) {
1088
1089 case MFI_STAT_OK:
1090 cmd->scmd->result = DID_OK << 16;
1091 break;
1092
1093 case MFI_STAT_SCSI_IO_FAILED:
1094 case MFI_STAT_LD_INIT_IN_PROGRESS:
1095 cmd->scmd->result = (DID_ERROR << 16) | ext_status;
1096 break;
1097
1098 case MFI_STAT_SCSI_DONE_WITH_ERROR:
1099
1100 cmd->scmd->result = (DID_OK << 16) | ext_status;
1101 if (ext_status == SAM_STAT_CHECK_CONDITION) {
1102 memset(cmd->scmd->sense_buffer, 0,
1103 SCSI_SENSE_BUFFERSIZE);
1104 memcpy(cmd->scmd->sense_buffer, cmd->sense,
1105 SCSI_SENSE_BUFFERSIZE);
1106 cmd->scmd->result |= DRIVER_SENSE << 24;
1107 }
1108 break;
1109
1110 case MFI_STAT_LD_OFFLINE:
1111 case MFI_STAT_DEVICE_NOT_FOUND:
1112 cmd->scmd->result = DID_BAD_TARGET << 16;
1113 break;
1114 case MFI_STAT_CONFIG_SEQ_MISMATCH:
1115 cmd->scmd->result = DID_IMM_RETRY << 16;
1116 break;
1117 default:
1118 printk(KERN_DEBUG "megasas: FW status %#x\n", status);
1119 cmd->scmd->result = DID_ERROR << 16;
1120 break;
1121 }
1122}
1123
1124
1125
1126
1127
1128
1129
1130
1131
1132
1133static int
1134megasas_make_sgl_fusion(struct megasas_instance *instance,
1135 struct scsi_cmnd *scp,
1136 struct MPI25_IEEE_SGE_CHAIN64 *sgl_ptr,
1137 struct megasas_cmd_fusion *cmd)
1138{
1139 int i, sg_processed, sge_count;
1140 struct scatterlist *os_sgl;
1141 struct fusion_context *fusion;
1142
1143 fusion = instance->ctrl_context;
1144
1145 if ((instance->pdev->device == PCI_DEVICE_ID_LSI_INVADER) ||
1146 (instance->pdev->device == PCI_DEVICE_ID_LSI_FURY)) {
1147 struct MPI25_IEEE_SGE_CHAIN64 *sgl_ptr_end = sgl_ptr;
1148 sgl_ptr_end += fusion->max_sge_in_main_msg - 1;
1149 sgl_ptr_end->Flags = 0;
1150 }
1151
1152 sge_count = scsi_dma_map(scp);
1153
1154 BUG_ON(sge_count < 0);
1155
1156 if (sge_count > instance->max_num_sge || !sge_count)
1157 return sge_count;
1158
1159 scsi_for_each_sg(scp, os_sgl, sge_count, i) {
1160 sgl_ptr->Length = sg_dma_len(os_sgl);
1161 sgl_ptr->Address = sg_dma_address(os_sgl);
1162 sgl_ptr->Flags = 0;
1163 if ((instance->pdev->device == PCI_DEVICE_ID_LSI_INVADER) ||
1164 (instance->pdev->device == PCI_DEVICE_ID_LSI_FURY)) {
1165 if (i == sge_count - 1)
1166 sgl_ptr->Flags = IEEE_SGE_FLAGS_END_OF_LIST;
1167 }
1168 sgl_ptr++;
1169
1170 sg_processed = i + 1;
1171
1172 if ((sg_processed == (fusion->max_sge_in_main_msg - 1)) &&
1173 (sge_count > fusion->max_sge_in_main_msg)) {
1174
1175 struct MPI25_IEEE_SGE_CHAIN64 *sg_chain;
1176 if ((instance->pdev->device ==
1177 PCI_DEVICE_ID_LSI_INVADER) ||
1178 (instance->pdev->device ==
1179 PCI_DEVICE_ID_LSI_FURY)) {
1180 if ((cmd->io_request->IoFlags &
1181 MPI25_SAS_DEVICE0_FLAGS_ENABLED_FAST_PATH) !=
1182 MPI25_SAS_DEVICE0_FLAGS_ENABLED_FAST_PATH)
1183 cmd->io_request->ChainOffset =
1184 fusion->
1185 chain_offset_io_request;
1186 else
1187 cmd->io_request->ChainOffset = 0;
1188 } else
1189 cmd->io_request->ChainOffset =
1190 fusion->chain_offset_io_request;
1191
1192 sg_chain = sgl_ptr;
1193
1194 sg_chain->NextChainOffset = 0;
1195 if ((instance->pdev->device ==
1196 PCI_DEVICE_ID_LSI_INVADER) ||
1197 (instance->pdev->device ==
1198 PCI_DEVICE_ID_LSI_FURY))
1199 sg_chain->Flags = IEEE_SGE_FLAGS_CHAIN_ELEMENT;
1200 else
1201 sg_chain->Flags =
1202 (IEEE_SGE_FLAGS_CHAIN_ELEMENT |
1203 MPI2_IEEE_SGE_FLAGS_IOCPLBNTA_ADDR);
1204 sg_chain->Length = (sizeof(union MPI2_SGE_IO_UNION)
1205 *(sge_count - sg_processed));
1206 sg_chain->Address = cmd->sg_frame_phys_addr;
1207
1208 sgl_ptr =
1209 (struct MPI25_IEEE_SGE_CHAIN64 *)cmd->sg_frame;
1210 }
1211 }
1212
1213 return sge_count;
1214}
1215
1216
1217
1218
1219
1220
1221
1222
1223
1224void
1225megasas_set_pd_lba(struct MPI2_RAID_SCSI_IO_REQUEST *io_request, u8 cdb_len,
1226 struct IO_REQUEST_INFO *io_info, struct scsi_cmnd *scp,
1227 struct MR_FW_RAID_MAP_ALL *local_map_ptr, u32 ref_tag)
1228{
1229 struct MR_LD_RAID *raid;
1230 u32 ld;
1231 u64 start_blk = io_info->pdBlock;
1232 u8 *cdb = io_request->CDB.CDB32;
1233 u32 num_blocks = io_info->numBlocks;
1234 u8 opcode = 0, flagvals = 0, groupnum = 0, control = 0;
1235
1236
1237 ld = MR_TargetIdToLdGet(io_info->ldTgtId, local_map_ptr);
1238 raid = MR_LdRaidGet(ld, local_map_ptr);
1239 if (raid->capability.ldPiMode == MR_PROT_INFO_TYPE_CONTROLLER) {
1240 memset(cdb, 0, sizeof(io_request->CDB.CDB32));
1241 cdb[0] = MEGASAS_SCSI_VARIABLE_LENGTH_CMD;
1242 cdb[7] = MEGASAS_SCSI_ADDL_CDB_LEN;
1243
1244 if (scp->sc_data_direction == PCI_DMA_FROMDEVICE)
1245 cdb[9] = MEGASAS_SCSI_SERVICE_ACTION_READ32;
1246 else
1247 cdb[9] = MEGASAS_SCSI_SERVICE_ACTION_WRITE32;
1248 cdb[10] = MEGASAS_RD_WR_PROTECT_CHECK_ALL;
1249
1250
1251 cdb[12] = (u8)((start_blk >> 56) & 0xff);
1252 cdb[13] = (u8)((start_blk >> 48) & 0xff);
1253 cdb[14] = (u8)((start_blk >> 40) & 0xff);
1254 cdb[15] = (u8)((start_blk >> 32) & 0xff);
1255 cdb[16] = (u8)((start_blk >> 24) & 0xff);
1256 cdb[17] = (u8)((start_blk >> 16) & 0xff);
1257 cdb[18] = (u8)((start_blk >> 8) & 0xff);
1258 cdb[19] = (u8)(start_blk & 0xff);
1259
1260
1261 io_request->CDB.EEDP32.PrimaryReferenceTag =
1262 cpu_to_be32(ref_tag);
1263 io_request->CDB.EEDP32.PrimaryApplicationTagMask = 0xffff;
1264 io_request->IoFlags = 32;
1265
1266
1267 cdb[28] = (u8)((num_blocks >> 24) & 0xff);
1268 cdb[29] = (u8)((num_blocks >> 16) & 0xff);
1269 cdb[30] = (u8)((num_blocks >> 8) & 0xff);
1270 cdb[31] = (u8)(num_blocks & 0xff);
1271
1272
1273 if (scp->sc_data_direction == PCI_DMA_FROMDEVICE) {
1274 io_request->EEDPFlags =
1275 MPI2_SCSIIO_EEDPFLAGS_INC_PRI_REFTAG |
1276 MPI2_SCSIIO_EEDPFLAGS_CHECK_REFTAG |
1277 MPI2_SCSIIO_EEDPFLAGS_CHECK_REMOVE_OP |
1278 MPI2_SCSIIO_EEDPFLAGS_CHECK_APPTAG |
1279 MPI2_SCSIIO_EEDPFLAGS_CHECK_GUARD;
1280 } else {
1281 io_request->EEDPFlags =
1282 MPI2_SCSIIO_EEDPFLAGS_INC_PRI_REFTAG |
1283 MPI2_SCSIIO_EEDPFLAGS_INSERT_OP;
1284 }
1285 io_request->Control |= (0x4 << 26);
1286 io_request->EEDPBlockSize = scp->device->sector_size;
1287 } else {
1288
1289 if (((cdb_len == 12) || (cdb_len == 16)) &&
1290 (start_blk <= 0xffffffff)) {
1291 if (cdb_len == 16) {
1292 opcode = cdb[0] == READ_16 ? READ_10 : WRITE_10;
1293 flagvals = cdb[1];
1294 groupnum = cdb[14];
1295 control = cdb[15];
1296 } else {
1297 opcode = cdb[0] == READ_12 ? READ_10 : WRITE_10;
1298 flagvals = cdb[1];
1299 groupnum = cdb[10];
1300 control = cdb[11];
1301 }
1302
1303 memset(cdb, 0, sizeof(io_request->CDB.CDB32));
1304
1305 cdb[0] = opcode;
1306 cdb[1] = flagvals;
1307 cdb[6] = groupnum;
1308 cdb[9] = control;
1309
1310
1311 cdb[8] = (u8)(num_blocks & 0xff);
1312 cdb[7] = (u8)((num_blocks >> 8) & 0xff);
1313
1314 io_request->IoFlags = 10;
1315 cdb_len = 10;
1316 } else if ((cdb_len < 16) && (start_blk > 0xffffffff)) {
1317
1318 switch (cdb_len) {
1319 case 6:
1320 opcode = cdb[0] == READ_6 ? READ_16 : WRITE_16;
1321 control = cdb[5];
1322 break;
1323 case 10:
1324 opcode =
1325 cdb[0] == READ_10 ? READ_16 : WRITE_16;
1326 flagvals = cdb[1];
1327 groupnum = cdb[6];
1328 control = cdb[9];
1329 break;
1330 case 12:
1331 opcode =
1332 cdb[0] == READ_12 ? READ_16 : WRITE_16;
1333 flagvals = cdb[1];
1334 groupnum = cdb[10];
1335 control = cdb[11];
1336 break;
1337 }
1338
1339 memset(cdb, 0, sizeof(io_request->CDB.CDB32));
1340
1341 cdb[0] = opcode;
1342 cdb[1] = flagvals;
1343 cdb[14] = groupnum;
1344 cdb[15] = control;
1345
1346
1347 cdb[13] = (u8)(num_blocks & 0xff);
1348 cdb[12] = (u8)((num_blocks >> 8) & 0xff);
1349 cdb[11] = (u8)((num_blocks >> 16) & 0xff);
1350 cdb[10] = (u8)((num_blocks >> 24) & 0xff);
1351
1352 io_request->IoFlags = 16;
1353 cdb_len = 16;
1354 }
1355
1356
1357 switch (cdb_len) {
1358 case 6:
1359 {
1360 u8 val = cdb[1] & 0xE0;
1361 cdb[3] = (u8)(start_blk & 0xff);
1362 cdb[2] = (u8)((start_blk >> 8) & 0xff);
1363 cdb[1] = val | ((u8)(start_blk >> 16) & 0x1f);
1364 break;
1365 }
1366 case 10:
1367 cdb[5] = (u8)(start_blk & 0xff);
1368 cdb[4] = (u8)((start_blk >> 8) & 0xff);
1369 cdb[3] = (u8)((start_blk >> 16) & 0xff);
1370 cdb[2] = (u8)((start_blk >> 24) & 0xff);
1371 break;
1372 case 12:
1373 cdb[5] = (u8)(start_blk & 0xff);
1374 cdb[4] = (u8)((start_blk >> 8) & 0xff);
1375 cdb[3] = (u8)((start_blk >> 16) & 0xff);
1376 cdb[2] = (u8)((start_blk >> 24) & 0xff);
1377 break;
1378 case 16:
1379 cdb[9] = (u8)(start_blk & 0xff);
1380 cdb[8] = (u8)((start_blk >> 8) & 0xff);
1381 cdb[7] = (u8)((start_blk >> 16) & 0xff);
1382 cdb[6] = (u8)((start_blk >> 24) & 0xff);
1383 cdb[5] = (u8)((start_blk >> 32) & 0xff);
1384 cdb[4] = (u8)((start_blk >> 40) & 0xff);
1385 cdb[3] = (u8)((start_blk >> 48) & 0xff);
1386 cdb[2] = (u8)((start_blk >> 56) & 0xff);
1387 break;
1388 }
1389 }
1390}
1391
1392
1393
1394
1395
1396
1397
1398
1399
1400
1401void
1402megasas_build_ldio_fusion(struct megasas_instance *instance,
1403 struct scsi_cmnd *scp,
1404 struct megasas_cmd_fusion *cmd)
1405{
1406 u8 fp_possible;
1407 u32 start_lba_lo, start_lba_hi, device_id, datalength = 0;
1408 struct MPI2_RAID_SCSI_IO_REQUEST *io_request;
1409 union MEGASAS_REQUEST_DESCRIPTOR_UNION *req_desc;
1410 struct IO_REQUEST_INFO io_info;
1411 struct fusion_context *fusion;
1412 struct MR_FW_RAID_MAP_ALL *local_map_ptr;
1413
1414 device_id = MEGASAS_DEV_INDEX(instance, scp);
1415
1416 fusion = instance->ctrl_context;
1417
1418 io_request = cmd->io_request;
1419 io_request->RaidContext.VirtualDiskTgtId = device_id;
1420 io_request->RaidContext.status = 0;
1421 io_request->RaidContext.exStatus = 0;
1422
1423 req_desc = (union MEGASAS_REQUEST_DESCRIPTOR_UNION *)cmd->request_desc;
1424
1425 start_lba_lo = 0;
1426 start_lba_hi = 0;
1427 fp_possible = 0;
1428
1429
1430
1431
1432 if (scp->cmd_len == 6) {
1433 datalength = (u32) scp->cmnd[4];
1434 start_lba_lo = ((u32) scp->cmnd[1] << 16) |
1435 ((u32) scp->cmnd[2] << 8) | (u32) scp->cmnd[3];
1436
1437 start_lba_lo &= 0x1FFFFF;
1438 }
1439
1440
1441
1442
1443 else if (scp->cmd_len == 10) {
1444 datalength = (u32) scp->cmnd[8] |
1445 ((u32) scp->cmnd[7] << 8);
1446 start_lba_lo = ((u32) scp->cmnd[2] << 24) |
1447 ((u32) scp->cmnd[3] << 16) |
1448 ((u32) scp->cmnd[4] << 8) | (u32) scp->cmnd[5];
1449 }
1450
1451
1452
1453
1454 else if (scp->cmd_len == 12) {
1455 datalength = ((u32) scp->cmnd[6] << 24) |
1456 ((u32) scp->cmnd[7] << 16) |
1457 ((u32) scp->cmnd[8] << 8) | (u32) scp->cmnd[9];
1458 start_lba_lo = ((u32) scp->cmnd[2] << 24) |
1459 ((u32) scp->cmnd[3] << 16) |
1460 ((u32) scp->cmnd[4] << 8) | (u32) scp->cmnd[5];
1461 }
1462
1463
1464
1465
1466 else if (scp->cmd_len == 16) {
1467 datalength = ((u32) scp->cmnd[10] << 24) |
1468 ((u32) scp->cmnd[11] << 16) |
1469 ((u32) scp->cmnd[12] << 8) | (u32) scp->cmnd[13];
1470 start_lba_lo = ((u32) scp->cmnd[6] << 24) |
1471 ((u32) scp->cmnd[7] << 16) |
1472 ((u32) scp->cmnd[8] << 8) | (u32) scp->cmnd[9];
1473
1474 start_lba_hi = ((u32) scp->cmnd[2] << 24) |
1475 ((u32) scp->cmnd[3] << 16) |
1476 ((u32) scp->cmnd[4] << 8) | (u32) scp->cmnd[5];
1477 }
1478
1479 memset(&io_info, 0, sizeof(struct IO_REQUEST_INFO));
1480 io_info.ldStartBlock = ((u64)start_lba_hi << 32) | start_lba_lo;
1481 io_info.numBlocks = datalength;
1482 io_info.ldTgtId = device_id;
1483 io_request->DataLength = scsi_bufflen(scp);
1484
1485 if (scp->sc_data_direction == PCI_DMA_FROMDEVICE)
1486 io_info.isRead = 1;
1487
1488 local_map_ptr = fusion->ld_map[(instance->map_id & 1)];
1489
1490 if ((MR_TargetIdToLdGet(device_id, local_map_ptr) >=
1491 MAX_LOGICAL_DRIVES) || (!fusion->fast_path_io)) {
1492 io_request->RaidContext.regLockFlags = 0;
1493 fp_possible = 0;
1494 } else {
1495 if (MR_BuildRaidContext(instance, &io_info,
1496 &io_request->RaidContext,
1497 local_map_ptr))
1498 fp_possible = io_info.fpOkForIo;
1499 }
1500
1501
1502
1503
1504 cmd->request_desc->SCSIIO.MSIxIndex = instance->msix_vectors ?
1505 smp_processor_id() % instance->msix_vectors : 0;
1506
1507 if (fp_possible) {
1508 megasas_set_pd_lba(io_request, scp->cmd_len, &io_info, scp,
1509 local_map_ptr, start_lba_lo);
1510 io_request->Function = MPI2_FUNCTION_SCSI_IO_REQUEST;
1511 cmd->request_desc->SCSIIO.RequestFlags =
1512 (MPI2_REQ_DESCRIPT_FLAGS_HIGH_PRIORITY
1513 << MEGASAS_REQ_DESCRIPT_FLAGS_TYPE_SHIFT);
1514 if ((instance->pdev->device == PCI_DEVICE_ID_LSI_INVADER) ||
1515 (instance->pdev->device == PCI_DEVICE_ID_LSI_FURY)) {
1516 if (io_request->RaidContext.regLockFlags ==
1517 REGION_TYPE_UNUSED)
1518 cmd->request_desc->SCSIIO.RequestFlags =
1519 (MEGASAS_REQ_DESCRIPT_FLAGS_NO_LOCK <<
1520 MEGASAS_REQ_DESCRIPT_FLAGS_TYPE_SHIFT);
1521 io_request->RaidContext.Type = MPI2_TYPE_CUDA;
1522 io_request->RaidContext.nseg = 0x1;
1523 io_request->IoFlags |=
1524 MPI25_SAS_DEVICE0_FLAGS_ENABLED_FAST_PATH;
1525 io_request->RaidContext.regLockFlags |=
1526 (MR_RL_FLAGS_GRANT_DESTINATION_CUDA |
1527 MR_RL_FLAGS_SEQ_NUM_ENABLE);
1528 }
1529 if ((fusion->load_balance_info[device_id].loadBalanceFlag) &&
1530 (io_info.isRead)) {
1531 io_info.devHandle =
1532 get_updated_dev_handle(
1533 &fusion->load_balance_info[device_id],
1534 &io_info);
1535 scp->SCp.Status |= MEGASAS_LOAD_BALANCE_FLAG;
1536 } else
1537 scp->SCp.Status &= ~MEGASAS_LOAD_BALANCE_FLAG;
1538 cmd->request_desc->SCSIIO.DevHandle = io_info.devHandle;
1539 io_request->DevHandle = io_info.devHandle;
1540 } else {
1541 io_request->RaidContext.timeoutValue =
1542 local_map_ptr->raidMap.fpPdIoTimeoutSec;
1543 cmd->request_desc->SCSIIO.RequestFlags =
1544 (MEGASAS_REQ_DESCRIPT_FLAGS_LD_IO
1545 << MEGASAS_REQ_DESCRIPT_FLAGS_TYPE_SHIFT);
1546 if ((instance->pdev->device == PCI_DEVICE_ID_LSI_INVADER) ||
1547 (instance->pdev->device == PCI_DEVICE_ID_LSI_FURY)) {
1548 if (io_request->RaidContext.regLockFlags ==
1549 REGION_TYPE_UNUSED)
1550 cmd->request_desc->SCSIIO.RequestFlags =
1551 (MEGASAS_REQ_DESCRIPT_FLAGS_NO_LOCK <<
1552 MEGASAS_REQ_DESCRIPT_FLAGS_TYPE_SHIFT);
1553 io_request->RaidContext.Type = MPI2_TYPE_CUDA;
1554 io_request->RaidContext.regLockFlags |=
1555 (MR_RL_FLAGS_GRANT_DESTINATION_CPU0 |
1556 MR_RL_FLAGS_SEQ_NUM_ENABLE);
1557 io_request->RaidContext.nseg = 0x1;
1558 }
1559 io_request->Function = MEGASAS_MPI2_FUNCTION_LD_IO_REQUEST;
1560 io_request->DevHandle = device_id;
1561 }
1562}
1563
1564
1565
1566
1567
1568
1569
1570
1571
1572static void
1573megasas_build_dcdb_fusion(struct megasas_instance *instance,
1574 struct scsi_cmnd *scmd,
1575 struct megasas_cmd_fusion *cmd)
1576{
1577 u32 device_id;
1578 struct MPI2_RAID_SCSI_IO_REQUEST *io_request;
1579 u16 pd_index = 0;
1580 struct MR_FW_RAID_MAP_ALL *local_map_ptr;
1581 struct fusion_context *fusion = instance->ctrl_context;
1582
1583 io_request = cmd->io_request;
1584 device_id = MEGASAS_DEV_INDEX(instance, scmd);
1585 pd_index = (scmd->device->channel * MEGASAS_MAX_DEV_PER_CHANNEL)
1586 +scmd->device->id;
1587 local_map_ptr = fusion->ld_map[(instance->map_id & 1)];
1588
1589
1590 if (scmd->device->channel < MEGASAS_MAX_PD_CHANNELS &&
1591 instance->pd_list[pd_index].driveState == MR_PD_STATE_SYSTEM) {
1592 io_request->Function = 0;
1593 if (fusion->fast_path_io)
1594 io_request->DevHandle =
1595 local_map_ptr->raidMap.devHndlInfo[device_id].curDevHdl;
1596 io_request->RaidContext.timeoutValue =
1597 local_map_ptr->raidMap.fpPdIoTimeoutSec;
1598 io_request->RaidContext.regLockFlags = 0;
1599 io_request->RaidContext.regLockRowLBA = 0;
1600 io_request->RaidContext.regLockLength = 0;
1601 io_request->RaidContext.RAIDFlags =
1602 MR_RAID_FLAGS_IO_SUB_TYPE_SYSTEM_PD <<
1603 MR_RAID_CTX_RAID_FLAGS_IO_SUB_TYPE_SHIFT;
1604 if ((instance->pdev->device == PCI_DEVICE_ID_LSI_INVADER) ||
1605 (instance->pdev->device == PCI_DEVICE_ID_LSI_FURY))
1606 io_request->IoFlags |=
1607 MPI25_SAS_DEVICE0_FLAGS_ENABLED_FAST_PATH;
1608 cmd->request_desc->SCSIIO.RequestFlags =
1609 (MPI2_REQ_DESCRIPT_FLAGS_HIGH_PRIORITY <<
1610 MEGASAS_REQ_DESCRIPT_FLAGS_TYPE_SHIFT);
1611 cmd->request_desc->SCSIIO.DevHandle =
1612 local_map_ptr->raidMap.devHndlInfo[device_id].curDevHdl;
1613
1614
1615
1616
1617 if (scmd->device->type == TYPE_TAPE) {
1618 if ((scmd->request->timeout / HZ) > 0xFFFF)
1619 io_request->RaidContext.timeoutValue =
1620 0xFFFF;
1621 else
1622 io_request->RaidContext.timeoutValue =
1623 scmd->request->timeout / HZ;
1624 }
1625 } else {
1626 io_request->Function = MEGASAS_MPI2_FUNCTION_LD_IO_REQUEST;
1627 io_request->DevHandle = device_id;
1628 cmd->request_desc->SCSIIO.RequestFlags =
1629 (MPI2_REQ_DESCRIPT_FLAGS_SCSI_IO <<
1630 MEGASAS_REQ_DESCRIPT_FLAGS_TYPE_SHIFT);
1631 }
1632 io_request->RaidContext.VirtualDiskTgtId = device_id;
1633 io_request->LUN[1] = scmd->device->lun;
1634 io_request->DataLength = scsi_bufflen(scmd);
1635}
1636
1637
1638
1639
1640
1641
1642
1643
1644
1645
1646int
1647megasas_build_io_fusion(struct megasas_instance *instance,
1648 struct scsi_cmnd *scp,
1649 struct megasas_cmd_fusion *cmd)
1650{
1651 u32 device_id, sge_count;
1652 struct MPI2_RAID_SCSI_IO_REQUEST *io_request = cmd->io_request;
1653
1654 device_id = MEGASAS_DEV_INDEX(instance, scp);
1655
1656
1657 io_request->LUN[1] = 0;
1658 io_request->CDB.EEDP32.PrimaryReferenceTag = 0;
1659 io_request->CDB.EEDP32.PrimaryApplicationTagMask = 0;
1660 io_request->EEDPFlags = 0;
1661 io_request->Control = 0;
1662 io_request->EEDPBlockSize = 0;
1663 io_request->ChainOffset = 0;
1664 io_request->RaidContext.RAIDFlags = 0;
1665 io_request->RaidContext.Type = 0;
1666 io_request->RaidContext.nseg = 0;
1667
1668 memcpy(io_request->CDB.CDB32, scp->cmnd, scp->cmd_len);
1669
1670
1671
1672
1673 io_request->IoFlags = scp->cmd_len;
1674
1675 if (megasas_is_ldio(scp))
1676 megasas_build_ldio_fusion(instance, scp, cmd);
1677 else
1678 megasas_build_dcdb_fusion(instance, scp, cmd);
1679
1680
1681
1682
1683
1684 sge_count =
1685 megasas_make_sgl_fusion(instance, scp,
1686 (struct MPI25_IEEE_SGE_CHAIN64 *)
1687 &io_request->SGL, cmd);
1688
1689 if (sge_count > instance->max_num_sge) {
1690 printk(KERN_ERR "megasas: Error. sge_count (0x%x) exceeds "
1691 "max (0x%x) allowed\n", sge_count,
1692 instance->max_num_sge);
1693 return 1;
1694 }
1695
1696 io_request->RaidContext.numSGE = sge_count;
1697
1698 io_request->SGLFlags = MPI2_SGE_FLAGS_64_BIT_ADDRESSING;
1699
1700 if (scp->sc_data_direction == PCI_DMA_TODEVICE)
1701 io_request->Control |= MPI2_SCSIIO_CONTROL_WRITE;
1702 else if (scp->sc_data_direction == PCI_DMA_FROMDEVICE)
1703 io_request->Control |= MPI2_SCSIIO_CONTROL_READ;
1704
1705 io_request->SGLOffset0 =
1706 offsetof(struct MPI2_RAID_SCSI_IO_REQUEST, SGL) / 4;
1707
1708 io_request->SenseBufferLowAddress = cmd->sense_phys_addr;
1709 io_request->SenseBufferLength = SCSI_SENSE_BUFFERSIZE;
1710
1711 cmd->scmd = scp;
1712 scp->SCp.ptr = (char *)cmd;
1713
1714 return 0;
1715}
1716
1717union MEGASAS_REQUEST_DESCRIPTOR_UNION *
1718megasas_get_request_descriptor(struct megasas_instance *instance, u16 index)
1719{
1720 u8 *p;
1721 struct fusion_context *fusion;
1722
1723 if (index >= instance->max_fw_cmds) {
1724 printk(KERN_ERR "megasas: Invalid SMID (0x%x)request for "
1725 "descriptor\n", index);
1726 return NULL;
1727 }
1728 fusion = instance->ctrl_context;
1729 p = fusion->req_frames_desc
1730 +sizeof(union MEGASAS_REQUEST_DESCRIPTOR_UNION) *index;
1731
1732 return (union MEGASAS_REQUEST_DESCRIPTOR_UNION *)p;
1733}
1734
1735
1736
1737
1738
1739
1740
1741static u32
1742megasas_build_and_issue_cmd_fusion(struct megasas_instance *instance,
1743 struct scsi_cmnd *scmd)
1744{
1745 struct megasas_cmd_fusion *cmd;
1746 union MEGASAS_REQUEST_DESCRIPTOR_UNION *req_desc;
1747 u32 index;
1748 struct fusion_context *fusion;
1749
1750 fusion = instance->ctrl_context;
1751
1752 cmd = megasas_get_cmd_fusion(instance);
1753 if (!cmd)
1754 return SCSI_MLQUEUE_HOST_BUSY;
1755
1756 index = cmd->index;
1757
1758 req_desc = megasas_get_request_descriptor(instance, index-1);
1759 if (!req_desc)
1760 return 1;
1761
1762 req_desc->Words = 0;
1763 cmd->request_desc = req_desc;
1764
1765 if (megasas_build_io_fusion(instance, scmd, cmd)) {
1766 megasas_return_cmd_fusion(instance, cmd);
1767 printk(KERN_ERR "megasas: Error building command.\n");
1768 cmd->request_desc = NULL;
1769 return 1;
1770 }
1771
1772 req_desc = cmd->request_desc;
1773 req_desc->SCSIIO.SMID = index;
1774
1775 if (cmd->io_request->ChainOffset != 0 &&
1776 cmd->io_request->ChainOffset != 0xF)
1777 printk(KERN_ERR "megasas: The chain offset value is not "
1778 "correct : %x\n", cmd->io_request->ChainOffset);
1779
1780
1781
1782
1783 atomic_inc(&instance->fw_outstanding);
1784
1785 instance->instancet->fire_cmd(instance,
1786 req_desc->u.low, req_desc->u.high,
1787 instance->reg_set);
1788
1789 return 0;
1790}
1791
1792
1793
1794
1795
1796
1797int
1798complete_cmd_fusion(struct megasas_instance *instance, u32 MSIxIndex)
1799{
1800 union MPI2_REPLY_DESCRIPTORS_UNION *desc;
1801 struct MPI2_SCSI_IO_SUCCESS_REPLY_DESCRIPTOR *reply_desc;
1802 struct MPI2_RAID_SCSI_IO_REQUEST *scsi_io_req;
1803 struct fusion_context *fusion;
1804 struct megasas_cmd *cmd_mfi;
1805 struct megasas_cmd_fusion *cmd_fusion;
1806 u16 smid, num_completed;
1807 u8 reply_descript_type, arm;
1808 u32 status, extStatus, device_id;
1809 union desc_value d_val;
1810 struct LD_LOAD_BALANCE_INFO *lbinfo;
1811
1812 fusion = instance->ctrl_context;
1813
1814 if (instance->adprecovery == MEGASAS_HW_CRITICAL_ERROR)
1815 return IRQ_HANDLED;
1816
1817 desc = fusion->reply_frames_desc;
1818 desc += ((MSIxIndex * fusion->reply_alloc_sz)/
1819 sizeof(union MPI2_REPLY_DESCRIPTORS_UNION)) +
1820 fusion->last_reply_idx[MSIxIndex];
1821
1822 reply_desc = (struct MPI2_SCSI_IO_SUCCESS_REPLY_DESCRIPTOR *)desc;
1823
1824 d_val.word = desc->Words;
1825
1826 reply_descript_type = reply_desc->ReplyFlags &
1827 MPI2_RPY_DESCRIPT_FLAGS_TYPE_MASK;
1828
1829 if (reply_descript_type == MPI2_RPY_DESCRIPT_FLAGS_UNUSED)
1830 return IRQ_NONE;
1831
1832 num_completed = 0;
1833
1834 while ((d_val.u.low != UINT_MAX) && (d_val.u.high != UINT_MAX)) {
1835 smid = reply_desc->SMID;
1836
1837 cmd_fusion = fusion->cmd_list[smid - 1];
1838
1839 scsi_io_req =
1840 (struct MPI2_RAID_SCSI_IO_REQUEST *)
1841 cmd_fusion->io_request;
1842
1843 if (cmd_fusion->scmd)
1844 cmd_fusion->scmd->SCp.ptr = NULL;
1845
1846 status = scsi_io_req->RaidContext.status;
1847 extStatus = scsi_io_req->RaidContext.exStatus;
1848
1849 switch (scsi_io_req->Function) {
1850 case MPI2_FUNCTION_SCSI_IO_REQUEST:
1851
1852 device_id = MEGASAS_DEV_INDEX(instance,
1853 cmd_fusion->scmd);
1854 lbinfo = &fusion->load_balance_info[device_id];
1855 if (cmd_fusion->scmd->SCp.Status &
1856 MEGASAS_LOAD_BALANCE_FLAG) {
1857 arm = lbinfo->raid1DevHandle[0] ==
1858 cmd_fusion->io_request->DevHandle ? 0 :
1859 1;
1860 atomic_dec(&lbinfo->scsi_pending_cmds[arm]);
1861 cmd_fusion->scmd->SCp.Status &=
1862 ~MEGASAS_LOAD_BALANCE_FLAG;
1863 }
1864 if (reply_descript_type ==
1865 MPI2_RPY_DESCRIPT_FLAGS_SCSI_IO_SUCCESS) {
1866 if (megasas_dbg_lvl == 5)
1867 printk(KERN_ERR "\nmegasas: FAST Path "
1868 "IO Success\n");
1869 }
1870
1871 case MEGASAS_MPI2_FUNCTION_LD_IO_REQUEST:
1872
1873 map_cmd_status(cmd_fusion, status, extStatus);
1874 scsi_dma_unmap(cmd_fusion->scmd);
1875 cmd_fusion->scmd->scsi_done(cmd_fusion->scmd);
1876 scsi_io_req->RaidContext.status = 0;
1877 scsi_io_req->RaidContext.exStatus = 0;
1878 megasas_return_cmd_fusion(instance, cmd_fusion);
1879 atomic_dec(&instance->fw_outstanding);
1880
1881 break;
1882 case MEGASAS_MPI2_FUNCTION_PASSTHRU_IO_REQUEST:
1883 cmd_mfi = instance->cmd_list[cmd_fusion->sync_cmd_idx];
1884 megasas_complete_cmd(instance, cmd_mfi, DID_OK);
1885 cmd_fusion->flags = 0;
1886 megasas_return_cmd_fusion(instance, cmd_fusion);
1887
1888 break;
1889 }
1890
1891 fusion->last_reply_idx[MSIxIndex]++;
1892 if (fusion->last_reply_idx[MSIxIndex] >=
1893 fusion->reply_q_depth)
1894 fusion->last_reply_idx[MSIxIndex] = 0;
1895
1896 desc->Words = ULLONG_MAX;
1897 num_completed++;
1898
1899
1900 if (!fusion->last_reply_idx[MSIxIndex])
1901 desc = fusion->reply_frames_desc +
1902 ((MSIxIndex * fusion->reply_alloc_sz)/
1903 sizeof(union MPI2_REPLY_DESCRIPTORS_UNION));
1904 else
1905 desc++;
1906
1907 reply_desc =
1908 (struct MPI2_SCSI_IO_SUCCESS_REPLY_DESCRIPTOR *)desc;
1909
1910 d_val.word = desc->Words;
1911
1912 reply_descript_type = reply_desc->ReplyFlags &
1913 MPI2_RPY_DESCRIPT_FLAGS_TYPE_MASK;
1914
1915 if (reply_descript_type == MPI2_RPY_DESCRIPT_FLAGS_UNUSED)
1916 break;
1917 }
1918
1919 if (!num_completed)
1920 return IRQ_NONE;
1921
1922 wmb();
1923 if ((instance->pdev->device == PCI_DEVICE_ID_LSI_INVADER) ||
1924 (instance->pdev->device == PCI_DEVICE_ID_LSI_FURY))
1925 writel(((MSIxIndex & 0x7) << 24) |
1926 fusion->last_reply_idx[MSIxIndex],
1927 instance->reply_post_host_index_addr[MSIxIndex/8]);
1928 else
1929 writel((MSIxIndex << 24) |
1930 fusion->last_reply_idx[MSIxIndex],
1931 instance->reply_post_host_index_addr[0]);
1932 megasas_check_and_restore_queue_depth(instance);
1933 return IRQ_HANDLED;
1934}
1935
1936
1937
1938
1939
1940
1941
1942void
1943megasas_complete_cmd_dpc_fusion(unsigned long instance_addr)
1944{
1945 struct megasas_instance *instance =
1946 (struct megasas_instance *)instance_addr;
1947 unsigned long flags;
1948 u32 count, MSIxIndex;
1949
1950 count = instance->msix_vectors > 0 ? instance->msix_vectors : 1;
1951
1952
1953 spin_lock_irqsave(&instance->hba_lock, flags);
1954 if (instance->adprecovery == MEGASAS_HW_CRITICAL_ERROR) {
1955 spin_unlock_irqrestore(&instance->hba_lock, flags);
1956 return;
1957 }
1958 spin_unlock_irqrestore(&instance->hba_lock, flags);
1959
1960 for (MSIxIndex = 0 ; MSIxIndex < count; MSIxIndex++)
1961 complete_cmd_fusion(instance, MSIxIndex);
1962}
1963
1964
1965
1966
1967irqreturn_t megasas_isr_fusion(int irq, void *devp)
1968{
1969 struct megasas_irq_context *irq_context = devp;
1970 struct megasas_instance *instance = irq_context->instance;
1971 u32 mfiStatus, fw_state;
1972
1973 if (instance->mask_interrupts)
1974 return IRQ_NONE;
1975
1976 if (!instance->msix_vectors) {
1977 mfiStatus = instance->instancet->clear_intr(instance->reg_set);
1978 if (!mfiStatus)
1979 return IRQ_NONE;
1980 }
1981
1982
1983 if (test_bit(MEGASAS_FUSION_IN_RESET, &instance->reset_flags)) {
1984 instance->instancet->clear_intr(instance->reg_set);
1985 return IRQ_HANDLED;
1986 }
1987
1988 if (!complete_cmd_fusion(instance, irq_context->MSIxIndex)) {
1989 instance->instancet->clear_intr(instance->reg_set);
1990
1991 fw_state = instance->instancet->read_fw_status_reg(
1992 instance->reg_set) & MFI_STATE_MASK;
1993 if (fw_state == MFI_STATE_FAULT)
1994 schedule_work(&instance->work_init);
1995 }
1996
1997 return IRQ_HANDLED;
1998}
1999
2000
2001
2002
2003
2004
2005
2006u8
2007build_mpt_mfi_pass_thru(struct megasas_instance *instance,
2008 struct megasas_cmd *mfi_cmd)
2009{
2010 struct MPI25_IEEE_SGE_CHAIN64 *mpi25_ieee_chain;
2011 struct MPI2_RAID_SCSI_IO_REQUEST *io_req;
2012 struct megasas_cmd_fusion *cmd;
2013 struct fusion_context *fusion;
2014 struct megasas_header *frame_hdr = &mfi_cmd->frame->hdr;
2015
2016 cmd = megasas_get_cmd_fusion(instance);
2017 if (!cmd)
2018 return 1;
2019
2020
2021 mfi_cmd->context.smid = cmd->index;
2022
2023 cmd->sync_cmd_idx = mfi_cmd->index;
2024
2025
2026
2027
2028
2029
2030
2031 if (frame_hdr->flags & MFI_FRAME_DONT_POST_IN_REPLY_QUEUE)
2032 cmd->flags = MFI_FRAME_DONT_POST_IN_REPLY_QUEUE;
2033
2034 fusion = instance->ctrl_context;
2035 io_req = cmd->io_request;
2036
2037 if ((instance->pdev->device == PCI_DEVICE_ID_LSI_INVADER) ||
2038 (instance->pdev->device == PCI_DEVICE_ID_LSI_FURY)) {
2039 struct MPI25_IEEE_SGE_CHAIN64 *sgl_ptr_end =
2040 (struct MPI25_IEEE_SGE_CHAIN64 *)&io_req->SGL;
2041 sgl_ptr_end += fusion->max_sge_in_main_msg - 1;
2042 sgl_ptr_end->Flags = 0;
2043 }
2044
2045 mpi25_ieee_chain =
2046 (struct MPI25_IEEE_SGE_CHAIN64 *)&io_req->SGL.IeeeChain;
2047
2048 io_req->Function = MEGASAS_MPI2_FUNCTION_PASSTHRU_IO_REQUEST;
2049 io_req->SGLOffset0 = offsetof(struct MPI2_RAID_SCSI_IO_REQUEST,
2050 SGL) / 4;
2051 io_req->ChainOffset = fusion->chain_offset_mfi_pthru;
2052
2053 mpi25_ieee_chain->Address = mfi_cmd->frame_phys_addr;
2054
2055 mpi25_ieee_chain->Flags = IEEE_SGE_FLAGS_CHAIN_ELEMENT |
2056 MPI2_IEEE_SGE_FLAGS_IOCPLBNTA_ADDR;
2057
2058 mpi25_ieee_chain->Length = MEGASAS_MAX_SZ_CHAIN_FRAME;
2059
2060 return 0;
2061}
2062
2063
2064
2065
2066
2067
2068
2069union MEGASAS_REQUEST_DESCRIPTOR_UNION *
2070build_mpt_cmd(struct megasas_instance *instance, struct megasas_cmd *cmd)
2071{
2072 union MEGASAS_REQUEST_DESCRIPTOR_UNION *req_desc;
2073 u16 index;
2074
2075 if (build_mpt_mfi_pass_thru(instance, cmd)) {
2076 printk(KERN_ERR "Couldn't build MFI pass thru cmd\n");
2077 return NULL;
2078 }
2079
2080 index = cmd->context.smid;
2081
2082 req_desc = megasas_get_request_descriptor(instance, index - 1);
2083
2084 if (!req_desc)
2085 return NULL;
2086
2087 req_desc->Words = 0;
2088 req_desc->SCSIIO.RequestFlags = (MPI2_REQ_DESCRIPT_FLAGS_SCSI_IO <<
2089 MEGASAS_REQ_DESCRIPT_FLAGS_TYPE_SHIFT);
2090
2091 req_desc->SCSIIO.SMID = index;
2092
2093 return req_desc;
2094}
2095
2096
2097
2098
2099
2100
2101
2102void
2103megasas_issue_dcmd_fusion(struct megasas_instance *instance,
2104 struct megasas_cmd *cmd)
2105{
2106 union MEGASAS_REQUEST_DESCRIPTOR_UNION *req_desc;
2107
2108 req_desc = build_mpt_cmd(instance, cmd);
2109 if (!req_desc) {
2110 printk(KERN_ERR "Couldn't issue MFI pass thru cmd\n");
2111 return;
2112 }
2113 instance->instancet->fire_cmd(instance, req_desc->u.low,
2114 req_desc->u.high, instance->reg_set);
2115}
2116
2117
2118
2119
2120
2121void
2122megasas_release_fusion(struct megasas_instance *instance)
2123{
2124 megasas_free_cmds(instance);
2125 megasas_free_cmds_fusion(instance);
2126
2127 iounmap(instance->reg_set);
2128
2129 pci_release_selected_regions(instance->pdev, instance->bar);
2130}
2131
2132
2133
2134
2135
2136static u32
2137megasas_read_fw_status_reg_fusion(struct megasas_register_set __iomem *regs)
2138{
2139 return readl(&(regs)->outbound_scratch_pad);
2140}
2141
2142
2143
2144
2145
2146static int
2147megasas_adp_reset_fusion(struct megasas_instance *instance,
2148 struct megasas_register_set __iomem *regs)
2149{
2150 return 0;
2151}
2152
2153
2154
2155
2156
2157static int
2158megasas_check_reset_fusion(struct megasas_instance *instance,
2159 struct megasas_register_set __iomem *regs)
2160{
2161 return 0;
2162}
2163
2164
2165int megasas_wait_for_outstanding_fusion(struct megasas_instance *instance)
2166{
2167 int i, outstanding, retval = 0;
2168 u32 fw_state;
2169
2170 for (i = 0; i < resetwaittime; i++) {
2171
2172 fw_state = instance->instancet->read_fw_status_reg(
2173 instance->reg_set) & MFI_STATE_MASK;
2174 if (fw_state == MFI_STATE_FAULT) {
2175 printk(KERN_WARNING "megasas: Found FW in FAULT state,"
2176 " will reset adapter.\n");
2177 retval = 1;
2178 goto out;
2179 }
2180
2181 outstanding = atomic_read(&instance->fw_outstanding);
2182 if (!outstanding)
2183 goto out;
2184
2185 if (!(i % MEGASAS_RESET_NOTICE_INTERVAL)) {
2186 printk(KERN_NOTICE "megasas: [%2d]waiting for %d "
2187 "commands to complete\n", i, outstanding);
2188 megasas_complete_cmd_dpc_fusion(
2189 (unsigned long)instance);
2190 }
2191 msleep(1000);
2192 }
2193
2194 if (atomic_read(&instance->fw_outstanding)) {
2195 printk("megaraid_sas: pending commands remain after waiting, "
2196 "will reset adapter.\n");
2197 retval = 1;
2198 }
2199out:
2200 return retval;
2201}
2202
2203void megasas_reset_reply_desc(struct megasas_instance *instance)
2204{
2205 int i, count;
2206 struct fusion_context *fusion;
2207 union MPI2_REPLY_DESCRIPTORS_UNION *reply_desc;
2208
2209 fusion = instance->ctrl_context;
2210 count = instance->msix_vectors > 0 ? instance->msix_vectors : 1;
2211 for (i = 0 ; i < count ; i++)
2212 fusion->last_reply_idx[i] = 0;
2213 reply_desc = fusion->reply_frames_desc;
2214 for (i = 0 ; i < fusion->reply_q_depth * count; i++, reply_desc++)
2215 reply_desc->Words = ULLONG_MAX;
2216}
2217
2218
2219int megasas_reset_fusion(struct Scsi_Host *shost)
2220{
2221 int retval = SUCCESS, i, j, retry = 0;
2222 struct megasas_instance *instance;
2223 struct megasas_cmd_fusion *cmd_fusion;
2224 struct fusion_context *fusion;
2225 struct megasas_cmd *cmd_mfi;
2226 union MEGASAS_REQUEST_DESCRIPTOR_UNION *req_desc;
2227 u32 host_diag, abs_state, status_reg, reset_adapter;
2228
2229 instance = (struct megasas_instance *)shost->hostdata;
2230 fusion = instance->ctrl_context;
2231
2232 if (instance->adprecovery == MEGASAS_HW_CRITICAL_ERROR) {
2233 printk(KERN_WARNING "megaraid_sas: Hardware critical error, "
2234 "returning FAILED.\n");
2235 return FAILED;
2236 }
2237
2238 mutex_lock(&instance->reset_mutex);
2239 set_bit(MEGASAS_FUSION_IN_RESET, &instance->reset_flags);
2240 instance->adprecovery = MEGASAS_ADPRESET_SM_INFAULT;
2241 instance->instancet->disable_intr(instance);
2242 msleep(1000);
2243
2244
2245 if (megasas_wait_for_outstanding_fusion(instance)) {
2246 printk(KERN_WARNING "megaraid_sas: resetting fusion "
2247 "adapter.\n");
2248
2249 for (i = 0 ; i < instance->max_fw_cmds; i++) {
2250 cmd_fusion = fusion->cmd_list[i];
2251 if (cmd_fusion->scmd) {
2252 scsi_dma_unmap(cmd_fusion->scmd);
2253 cmd_fusion->scmd->result = (DID_RESET << 16);
2254 cmd_fusion->scmd->scsi_done(cmd_fusion->scmd);
2255 megasas_return_cmd_fusion(instance, cmd_fusion);
2256 atomic_dec(&instance->fw_outstanding);
2257 }
2258 }
2259
2260 status_reg = instance->instancet->read_fw_status_reg(
2261 instance->reg_set);
2262 abs_state = status_reg & MFI_STATE_MASK;
2263 reset_adapter = status_reg & MFI_RESET_ADAPTER;
2264 if (instance->disableOnlineCtrlReset ||
2265 (abs_state == MFI_STATE_FAULT && !reset_adapter)) {
2266
2267 printk(KERN_WARNING "megaraid_sas: Reset not supported"
2268 ", killing adapter.\n");
2269 megaraid_sas_kill_hba(instance);
2270 instance->adprecovery = MEGASAS_HW_CRITICAL_ERROR;
2271 retval = FAILED;
2272 goto out;
2273 }
2274
2275
2276 for (i = 0; i < MEGASAS_FUSION_MAX_RESET_TRIES; i++) {
2277 writel(MPI2_WRSEQ_FLUSH_KEY_VALUE,
2278 &instance->reg_set->fusion_seq_offset);
2279 writel(MPI2_WRSEQ_1ST_KEY_VALUE,
2280 &instance->reg_set->fusion_seq_offset);
2281 writel(MPI2_WRSEQ_2ND_KEY_VALUE,
2282 &instance->reg_set->fusion_seq_offset);
2283 writel(MPI2_WRSEQ_3RD_KEY_VALUE,
2284 &instance->reg_set->fusion_seq_offset);
2285 writel(MPI2_WRSEQ_4TH_KEY_VALUE,
2286 &instance->reg_set->fusion_seq_offset);
2287 writel(MPI2_WRSEQ_5TH_KEY_VALUE,
2288 &instance->reg_set->fusion_seq_offset);
2289 writel(MPI2_WRSEQ_6TH_KEY_VALUE,
2290 &instance->reg_set->fusion_seq_offset);
2291
2292
2293 host_diag = readl(&instance->reg_set->fusion_host_diag);
2294 retry = 0;
2295 while (!(host_diag & HOST_DIAG_WRITE_ENABLE)) {
2296 msleep(100);
2297 host_diag =
2298 readl(&instance->reg_set->fusion_host_diag);
2299 if (retry++ == 100) {
2300 printk(KERN_WARNING "megaraid_sas: "
2301 "Host diag unlock failed!\n");
2302 break;
2303 }
2304 }
2305 if (!(host_diag & HOST_DIAG_WRITE_ENABLE))
2306 continue;
2307
2308
2309 writel(host_diag | HOST_DIAG_RESET_ADAPTER,
2310 &instance->reg_set->fusion_host_diag);
2311 msleep(3000);
2312
2313
2314 host_diag = readl(&instance->reg_set->fusion_host_diag);
2315 retry = 0;
2316 while (host_diag & HOST_DIAG_RESET_ADAPTER) {
2317 msleep(100);
2318 host_diag =
2319 readl(&instance->reg_set->fusion_host_diag);
2320 if (retry++ == 1000) {
2321 printk(KERN_WARNING "megaraid_sas: "
2322 "Diag reset adapter never "
2323 "cleared!\n");
2324 break;
2325 }
2326 }
2327 if (host_diag & HOST_DIAG_RESET_ADAPTER)
2328 continue;
2329
2330 abs_state =
2331 instance->instancet->read_fw_status_reg(
2332 instance->reg_set) & MFI_STATE_MASK;
2333 retry = 0;
2334
2335 while ((abs_state <= MFI_STATE_FW_INIT) &&
2336 (retry++ < 1000)) {
2337 msleep(100);
2338 abs_state =
2339 instance->instancet->read_fw_status_reg(
2340 instance->reg_set) & MFI_STATE_MASK;
2341 }
2342 if (abs_state <= MFI_STATE_FW_INIT) {
2343 printk(KERN_WARNING "megaraid_sas: firmware "
2344 "state < MFI_STATE_FW_INIT, state = "
2345 "0x%x\n", abs_state);
2346 continue;
2347 }
2348
2349
2350 if (megasas_transition_to_ready(instance, 1)) {
2351 printk(KERN_WARNING "megaraid_sas: Failed to "
2352 "transition controller to ready.\n");
2353 continue;
2354 }
2355
2356 megasas_reset_reply_desc(instance);
2357 if (megasas_ioc_init_fusion(instance)) {
2358 printk(KERN_WARNING "megaraid_sas: "
2359 "megasas_ioc_init_fusion() failed!\n");
2360 continue;
2361 }
2362
2363 clear_bit(MEGASAS_FUSION_IN_RESET,
2364 &instance->reset_flags);
2365 instance->instancet->enable_intr(instance);
2366 instance->adprecovery = MEGASAS_HBA_OPERATIONAL;
2367
2368
2369 for (j = 0 ; j < instance->max_fw_cmds; j++) {
2370 cmd_fusion = fusion->cmd_list[j];
2371 if (cmd_fusion->sync_cmd_idx !=
2372 (u32)ULONG_MAX) {
2373 cmd_mfi =
2374 instance->
2375 cmd_list[cmd_fusion->sync_cmd_idx];
2376 if (cmd_mfi->frame->dcmd.opcode ==
2377 MR_DCMD_LD_MAP_GET_INFO) {
2378 megasas_return_cmd(instance,
2379 cmd_mfi);
2380 megasas_return_cmd_fusion(
2381 instance, cmd_fusion);
2382 } else {
2383 req_desc =
2384 megasas_get_request_descriptor(
2385 instance,
2386 cmd_mfi->context.smid
2387 -1);
2388 if (!req_desc)
2389 printk(KERN_WARNING
2390 "req_desc NULL"
2391 "\n");
2392 else {
2393 instance->instancet->
2394 fire_cmd(instance,
2395 req_desc->
2396 u.low,
2397 req_desc->
2398 u.high,
2399 instance->
2400 reg_set);
2401 }
2402 }
2403 }
2404 }
2405
2406
2407 memset(fusion->load_balance_info, 0,
2408 sizeof(struct LD_LOAD_BALANCE_INFO)
2409 *MAX_LOGICAL_DRIVES);
2410
2411 if (!megasas_get_map_info(instance))
2412 megasas_sync_map_info(instance);
2413
2414
2415 printk(KERN_WARNING "megaraid_sas: Reset "
2416 "successful.\n");
2417 retval = SUCCESS;
2418 goto out;
2419 }
2420
2421 printk(KERN_WARNING "megaraid_sas: Reset failed, killing "
2422 "adapter.\n");
2423 megaraid_sas_kill_hba(instance);
2424 retval = FAILED;
2425 } else {
2426 clear_bit(MEGASAS_FUSION_IN_RESET, &instance->reset_flags);
2427 instance->instancet->enable_intr(instance);
2428 instance->adprecovery = MEGASAS_HBA_OPERATIONAL;
2429 }
2430out:
2431 clear_bit(MEGASAS_FUSION_IN_RESET, &instance->reset_flags);
2432 mutex_unlock(&instance->reset_mutex);
2433 return retval;
2434}
2435
2436
2437void megasas_fusion_ocr_wq(struct work_struct *work)
2438{
2439 struct megasas_instance *instance =
2440 container_of(work, struct megasas_instance, work_init);
2441
2442 megasas_reset_fusion(instance->host);
2443}
2444
2445struct megasas_instance_template megasas_instance_template_fusion = {
2446 .fire_cmd = megasas_fire_cmd_fusion,
2447 .enable_intr = megasas_enable_intr_fusion,
2448 .disable_intr = megasas_disable_intr_fusion,
2449 .clear_intr = megasas_clear_intr_fusion,
2450 .read_fw_status_reg = megasas_read_fw_status_reg_fusion,
2451 .adp_reset = megasas_adp_reset_fusion,
2452 .check_reset = megasas_check_reset_fusion,
2453 .service_isr = megasas_isr_fusion,
2454 .tasklet = megasas_complete_cmd_dpc_fusion,
2455 .init_adapter = megasas_init_adapter_fusion,
2456 .build_and_issue_cmd = megasas_build_and_issue_cmd_fusion,
2457 .issue_dcmd = megasas_issue_dcmd_fusion,
2458};
2459