2 * Linux MegaRAID driver for SAS based RAID controllers
4 * Copyright (c) 2009-2013 LSI Corporation
5 * Copyright (c) 2013-2014 Avago Technologies
7 * This program is free software; you can redistribute it and/or
8 * modify it under the terms of the GNU General Public License
9 * as published by the Free Software Foundation; either version 2
10 * of the License, or (at your option) any later version.
12 * This program is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 * GNU General Public License for more details.
17 * You should have received a copy of the GNU General Public License
18 * along with this program. If not, see <http://www.gnu.org/licenses/>.
20 * FILE: megaraid_sas_fusion.c
22 * Authors: Avago Technologies
25 * Kashyap Desai <kashyap.desai@avagotech.com>
26 * Sumit Saxena <sumit.saxena@avagotech.com>
28 * Send feedback to: megaraidlinux.pdl@avagotech.com
30 * Mail to: Avago Technologies, 350 West Trimble Road, Building 90,
31 * San Jose, California 95131
34 #include <linux/kernel.h>
35 #include <linux/types.h>
36 #include <linux/pci.h>
37 #include <linux/list.h>
38 #include <linux/moduleparam.h>
39 #include <linux/module.h>
40 #include <linux/spinlock.h>
41 #include <linux/interrupt.h>
42 #include <linux/delay.h>
43 #include <linux/uio.h>
44 #include <linux/uaccess.h>
46 #include <linux/compat.h>
47 #include <linux/blkdev.h>
48 #include <linux/mutex.h>
49 #include <linux/poll.h>
50 #include <linux/vmalloc.h>
52 #include <scsi/scsi.h>
53 #include <scsi/scsi_cmnd.h>
54 #include <scsi/scsi_device.h>
55 #include <scsi/scsi_host.h>
56 #include <scsi/scsi_dbg.h>
57 #include <linux/dmi.h>
59 #include "megaraid_sas_fusion.h"
60 #include "megaraid_sas.h"
63 extern void megasas_free_cmds(struct megasas_instance
*instance
);
64 extern struct megasas_cmd
*megasas_get_cmd(struct megasas_instance
67 megasas_complete_cmd(struct megasas_instance
*instance
,
68 struct megasas_cmd
*cmd
, u8 alt_status
);
70 wait_and_poll(struct megasas_instance
*instance
, struct megasas_cmd
*cmd
,
74 megasas_return_cmd(struct megasas_instance
*instance
, struct megasas_cmd
*cmd
);
75 int megasas_alloc_cmds(struct megasas_instance
*instance
);
77 megasas_clear_intr_fusion(struct megasas_register_set __iomem
*regs
);
79 megasas_issue_polled(struct megasas_instance
*instance
,
80 struct megasas_cmd
*cmd
);
82 megasas_check_and_restore_queue_depth(struct megasas_instance
*instance
);
84 int megasas_transition_to_ready(struct megasas_instance
*instance
, int ocr
);
85 void megaraid_sas_kill_hba(struct megasas_instance
*instance
);
87 extern u32 megasas_dbg_lvl
;
88 void megasas_sriov_heartbeat_handler(unsigned long instance_addr
);
89 int megasas_sriov_start_heartbeat(struct megasas_instance
*instance
,
91 void megasas_start_timer(struct megasas_instance
*instance
,
92 struct timer_list
*timer
,
93 void *fn
, unsigned long interval
);
94 extern struct megasas_mgmt_info megasas_mgmt_info
;
95 extern unsigned int resetwaittime
;
96 extern unsigned int dual_qdepth_disable
;
97 static void megasas_free_rdpq_fusion(struct megasas_instance
*instance
);
98 static void megasas_free_reply_fusion(struct megasas_instance
*instance
);
103 * megasas_enable_intr_fusion - Enables interrupts
104 * @regs: MFI register set
107 megasas_enable_intr_fusion(struct megasas_instance
*instance
)
109 struct megasas_register_set __iomem
*regs
;
110 regs
= instance
->reg_set
;
112 instance
->mask_interrupts
= 0;
113 /* For Thunderbolt/Invader also clear intr on enable */
114 writel(~0, ®s
->outbound_intr_status
);
115 readl(®s
->outbound_intr_status
);
117 writel(~MFI_FUSION_ENABLE_INTERRUPT_MASK
, &(regs
)->outbound_intr_mask
);
119 /* Dummy readl to force pci flush */
120 readl(®s
->outbound_intr_mask
);
124 * megasas_disable_intr_fusion - Disables interrupt
125 * @regs: MFI register set
128 megasas_disable_intr_fusion(struct megasas_instance
*instance
)
130 u32 mask
= 0xFFFFFFFF;
132 struct megasas_register_set __iomem
*regs
;
133 regs
= instance
->reg_set
;
134 instance
->mask_interrupts
= 1;
136 writel(mask
, ®s
->outbound_intr_mask
);
137 /* Dummy readl to force pci flush */
138 status
= readl(®s
->outbound_intr_mask
);
142 megasas_clear_intr_fusion(struct megasas_register_set __iomem
*regs
)
146 * Check if it is our interrupt
148 status
= readl(®s
->outbound_intr_status
);
151 writel(status
, ®s
->outbound_intr_status
);
152 readl(®s
->outbound_intr_status
);
155 if (!(status
& MFI_FUSION_ENABLE_INTERRUPT_MASK
))
162 * megasas_get_cmd_fusion - Get a command from the free pool
163 * @instance: Adapter soft state
165 * Returns a blk_tag indexed mpt frame
167 inline struct megasas_cmd_fusion
*megasas_get_cmd_fusion(struct megasas_instance
168 *instance
, u32 blk_tag
)
170 struct fusion_context
*fusion
;
172 fusion
= instance
->ctrl_context
;
173 return fusion
->cmd_list
[blk_tag
];
177 * megasas_return_cmd_fusion - Return a cmd to free command pool
178 * @instance: Adapter soft state
179 * @cmd: Command packet to be returned to free command pool
181 inline void megasas_return_cmd_fusion(struct megasas_instance
*instance
,
182 struct megasas_cmd_fusion
*cmd
)
185 memset(cmd
->io_request
, 0, MEGA_MPI2_RAID_DEFAULT_IO_FRAME_SIZE
);
186 cmd
->r1_alt_dev_handle
= MR_DEVHANDLE_INVALID
;
187 cmd
->cmd_completed
= false;
191 * megasas_fire_cmd_fusion - Sends command to the FW
192 * @instance: Adapter soft state
193 * @req_desc: 32bit or 64bit Request descriptor
195 * Perform PCI Write. Ventura supports 32 bit Descriptor.
196 * Prior to Ventura (12G) MR controller supports 64 bit Descriptor.
200 megasas_fire_cmd_fusion(struct megasas_instance
*instance
,
201 union MEGASAS_REQUEST_DESCRIPTOR_UNION
*req_desc
)
203 if (instance
->is_ventura
)
204 writel(le32_to_cpu(req_desc
->u
.low
),
205 &instance
->reg_set
->inbound_single_queue_port
);
207 #if defined(writeq) && defined(CONFIG_64BIT)
208 u64 req_data
= (((u64
)le32_to_cpu(req_desc
->u
.high
) << 32) |
209 le32_to_cpu(req_desc
->u
.low
));
211 writeq(req_data
, &instance
->reg_set
->inbound_low_queue_port
);
214 spin_lock_irqsave(&instance
->hba_lock
, flags
);
215 writel(le32_to_cpu(req_desc
->u
.low
),
216 &instance
->reg_set
->inbound_low_queue_port
);
217 writel(le32_to_cpu(req_desc
->u
.high
),
218 &instance
->reg_set
->inbound_high_queue_port
);
220 spin_unlock_irqrestore(&instance
->hba_lock
, flags
);
226 * megasas_fusion_update_can_queue - Do all Adapter Queue depth related calculations here
227 * @instance: Adapter soft state
228 * fw_boot_context: Whether this function called during probe or after OCR
230 * This function is only for fusion controllers.
231 * Update host can queue, if firmware downgrade max supported firmware commands.
232 * Firmware upgrade case will be skiped because underlying firmware has
233 * more resource than exposed to the OS.
237 megasas_fusion_update_can_queue(struct megasas_instance
*instance
, int fw_boot_context
)
239 u16 cur_max_fw_cmds
= 0;
240 u16 ldio_threshold
= 0;
241 struct megasas_register_set __iomem
*reg_set
;
243 reg_set
= instance
->reg_set
;
245 /* ventura FW does not fill outbound_scratch_pad_3 with queue depth */
246 if (!instance
->is_ventura
)
248 readl(&instance
->reg_set
->outbound_scratch_pad_3
) & 0x00FFFF;
250 if (dual_qdepth_disable
|| !cur_max_fw_cmds
)
251 cur_max_fw_cmds
= instance
->instancet
->read_fw_status_reg(reg_set
) & 0x00FFFF;
254 (instance
->instancet
->read_fw_status_reg(reg_set
) & 0x00FFFF) - MEGASAS_FUSION_IOCTL_CMDS
;
256 dev_info(&instance
->pdev
->dev
,
257 "Current firmware maximum commands: %d\t LDIO threshold: %d\n",
258 cur_max_fw_cmds
, ldio_threshold
);
260 if (fw_boot_context
== OCR_CONTEXT
) {
261 cur_max_fw_cmds
= cur_max_fw_cmds
- 1;
262 if (cur_max_fw_cmds
< instance
->max_fw_cmds
) {
263 instance
->cur_can_queue
=
264 cur_max_fw_cmds
- (MEGASAS_FUSION_INTERNAL_CMDS
+
265 MEGASAS_FUSION_IOCTL_CMDS
);
266 instance
->host
->can_queue
= instance
->cur_can_queue
;
267 instance
->ldio_threshold
= ldio_threshold
;
270 instance
->max_fw_cmds
= cur_max_fw_cmds
;
271 instance
->ldio_threshold
= ldio_threshold
;
273 if (!instance
->is_rdpq
)
274 instance
->max_fw_cmds
=
275 min_t(u16
, instance
->max_fw_cmds
, 1024);
278 instance
->max_fw_cmds
= min(instance
->max_fw_cmds
,
279 (u16
)MEGASAS_KDUMP_QUEUE_DEPTH
);
281 * Reduce the max supported cmds by 1. This is to ensure that the
282 * reply_q_sz (1 more than the max cmd that driver may send)
283 * does not exceed max cmds that the FW can support
285 instance
->max_fw_cmds
= instance
->max_fw_cmds
-1;
287 instance
->max_scsi_cmds
= instance
->max_fw_cmds
-
288 (MEGASAS_FUSION_INTERNAL_CMDS
+
289 MEGASAS_FUSION_IOCTL_CMDS
);
290 instance
->cur_can_queue
= instance
->max_scsi_cmds
;
291 instance
->host
->can_queue
= instance
->cur_can_queue
;
294 if (instance
->is_ventura
)
295 instance
->max_mpt_cmds
=
296 instance
->max_fw_cmds
* RAID_1_PEER_CMDS
;
298 instance
->max_mpt_cmds
= instance
->max_fw_cmds
;
301 * megasas_free_cmds_fusion - Free all the cmds in the free cmd pool
302 * @instance: Adapter soft state
305 megasas_free_cmds_fusion(struct megasas_instance
*instance
)
308 struct fusion_context
*fusion
= instance
->ctrl_context
;
309 struct megasas_cmd_fusion
*cmd
;
312 for (i
= 0; i
< instance
->max_mpt_cmds
; i
++) {
313 cmd
= fusion
->cmd_list
[i
];
316 pci_pool_free(fusion
->sg_dma_pool
, cmd
->sg_frame
,
317 cmd
->sg_frame_phys_addr
);
319 pci_pool_free(fusion
->sense_dma_pool
, cmd
->sense
,
320 cmd
->sense_phys_addr
);
324 if (fusion
->sg_dma_pool
) {
325 pci_pool_destroy(fusion
->sg_dma_pool
);
326 fusion
->sg_dma_pool
= NULL
;
328 if (fusion
->sense_dma_pool
) {
329 pci_pool_destroy(fusion
->sense_dma_pool
);
330 fusion
->sense_dma_pool
= NULL
;
334 /* Reply Frame, Desc*/
335 if (instance
->is_rdpq
)
336 megasas_free_rdpq_fusion(instance
);
338 megasas_free_reply_fusion(instance
);
340 /* Request Frame, Desc*/
341 if (fusion
->req_frames_desc
)
342 dma_free_coherent(&instance
->pdev
->dev
,
343 fusion
->request_alloc_sz
, fusion
->req_frames_desc
,
344 fusion
->req_frames_desc_phys
);
345 if (fusion
->io_request_frames
)
346 pci_pool_free(fusion
->io_request_frames_pool
,
347 fusion
->io_request_frames
,
348 fusion
->io_request_frames_phys
);
349 if (fusion
->io_request_frames_pool
) {
350 pci_pool_destroy(fusion
->io_request_frames_pool
);
351 fusion
->io_request_frames_pool
= NULL
;
356 for (i
= 0; i
< instance
->max_mpt_cmds
; i
++)
357 kfree(fusion
->cmd_list
[i
]);
359 kfree(fusion
->cmd_list
);
363 * megasas_create_sg_sense_fusion - Creates DMA pool for cmd frames
364 * @instance: Adapter soft state
367 static int megasas_create_sg_sense_fusion(struct megasas_instance
*instance
)
371 struct fusion_context
*fusion
;
372 struct megasas_cmd_fusion
*cmd
;
374 fusion
= instance
->ctrl_context
;
375 max_cmd
= instance
->max_fw_cmds
;
378 fusion
->sg_dma_pool
=
379 pci_pool_create("mr_sg", instance
->pdev
,
380 instance
->max_chain_frame_sz
,
381 MR_DEFAULT_NVME_PAGE_SIZE
, 0);
382 /* SCSI_SENSE_BUFFERSIZE = 96 bytes */
383 fusion
->sense_dma_pool
=
384 pci_pool_create("mr_sense", instance
->pdev
,
385 SCSI_SENSE_BUFFERSIZE
, 64, 0);
387 if (!fusion
->sense_dma_pool
|| !fusion
->sg_dma_pool
) {
388 dev_err(&instance
->pdev
->dev
,
389 "Failed from %s %d\n", __func__
, __LINE__
);
394 * Allocate and attach a frame to each of the commands in cmd_list
396 for (i
= 0; i
< max_cmd
; i
++) {
397 cmd
= fusion
->cmd_list
[i
];
398 cmd
->sg_frame
= pci_pool_alloc(fusion
->sg_dma_pool
,
399 GFP_KERNEL
, &cmd
->sg_frame_phys_addr
);
401 cmd
->sense
= pci_pool_alloc(fusion
->sense_dma_pool
,
402 GFP_KERNEL
, &cmd
->sense_phys_addr
);
403 if (!cmd
->sg_frame
|| !cmd
->sense
) {
404 dev_err(&instance
->pdev
->dev
,
405 "Failed from %s %d\n", __func__
, __LINE__
);
410 /* create sense buffer for the raid 1/10 fp */
411 for (i
= max_cmd
; i
< instance
->max_mpt_cmds
; i
++) {
412 cmd
= fusion
->cmd_list
[i
];
413 cmd
->sense
= pci_pool_alloc(fusion
->sense_dma_pool
,
414 GFP_KERNEL
, &cmd
->sense_phys_addr
);
416 dev_err(&instance
->pdev
->dev
,
417 "Failed from %s %d\n", __func__
, __LINE__
);
426 megasas_alloc_cmdlist_fusion(struct megasas_instance
*instance
)
428 u32 max_mpt_cmd
, i
, j
;
429 struct fusion_context
*fusion
;
431 fusion
= instance
->ctrl_context
;
433 max_mpt_cmd
= instance
->max_mpt_cmds
;
436 * fusion->cmd_list is an array of struct megasas_cmd_fusion pointers.
437 * Allocate the dynamic array first and then allocate individual
441 kzalloc(sizeof(struct megasas_cmd_fusion
*) * max_mpt_cmd
,
443 if (!fusion
->cmd_list
) {
444 dev_err(&instance
->pdev
->dev
,
445 "Failed from %s %d\n", __func__
, __LINE__
);
449 for (i
= 0; i
< max_mpt_cmd
; i
++) {
450 fusion
->cmd_list
[i
] = kzalloc(sizeof(struct megasas_cmd_fusion
),
452 if (!fusion
->cmd_list
[i
]) {
453 for (j
= 0; j
< i
; j
++)
454 kfree(fusion
->cmd_list
[j
]);
455 kfree(fusion
->cmd_list
);
456 dev_err(&instance
->pdev
->dev
,
457 "Failed from %s %d\n", __func__
, __LINE__
);
465 megasas_alloc_request_fusion(struct megasas_instance
*instance
)
467 struct fusion_context
*fusion
;
469 fusion
= instance
->ctrl_context
;
471 fusion
->req_frames_desc
=
472 dma_alloc_coherent(&instance
->pdev
->dev
,
473 fusion
->request_alloc_sz
,
474 &fusion
->req_frames_desc_phys
, GFP_KERNEL
);
475 if (!fusion
->req_frames_desc
) {
476 dev_err(&instance
->pdev
->dev
,
477 "Failed from %s %d\n", __func__
, __LINE__
);
481 fusion
->io_request_frames_pool
=
482 pci_pool_create("mr_ioreq", instance
->pdev
,
483 fusion
->io_frames_alloc_sz
, 16, 0);
485 if (!fusion
->io_request_frames_pool
) {
486 dev_err(&instance
->pdev
->dev
,
487 "Failed from %s %d\n", __func__
, __LINE__
);
491 fusion
->io_request_frames
=
492 pci_pool_alloc(fusion
->io_request_frames_pool
,
493 GFP_KERNEL
, &fusion
->io_request_frames_phys
);
494 if (!fusion
->io_request_frames
) {
495 dev_err(&instance
->pdev
->dev
,
496 "Failed from %s %d\n", __func__
, __LINE__
);
503 megasas_alloc_reply_fusion(struct megasas_instance
*instance
)
506 struct fusion_context
*fusion
;
507 union MPI2_REPLY_DESCRIPTORS_UNION
*reply_desc
;
508 fusion
= instance
->ctrl_context
;
510 count
= instance
->msix_vectors
> 0 ? instance
->msix_vectors
: 1;
511 fusion
->reply_frames_desc_pool
=
512 pci_pool_create("mr_reply", instance
->pdev
,
513 fusion
->reply_alloc_sz
* count
, 16, 0);
515 if (!fusion
->reply_frames_desc_pool
) {
516 dev_err(&instance
->pdev
->dev
,
517 "Failed from %s %d\n", __func__
, __LINE__
);
521 fusion
->reply_frames_desc
[0] =
522 pci_pool_alloc(fusion
->reply_frames_desc_pool
,
523 GFP_KERNEL
, &fusion
->reply_frames_desc_phys
[0]);
524 if (!fusion
->reply_frames_desc
[0]) {
525 dev_err(&instance
->pdev
->dev
,
526 "Failed from %s %d\n", __func__
, __LINE__
);
529 reply_desc
= fusion
->reply_frames_desc
[0];
530 for (i
= 0; i
< fusion
->reply_q_depth
* count
; i
++, reply_desc
++)
531 reply_desc
->Words
= cpu_to_le64(ULLONG_MAX
);
533 /* This is not a rdpq mode, but driver still populate
534 * reply_frame_desc array to use same msix index in ISR path.
536 for (i
= 0; i
< (count
- 1); i
++)
537 fusion
->reply_frames_desc
[i
+ 1] =
538 fusion
->reply_frames_desc
[i
] +
539 (fusion
->reply_alloc_sz
)/sizeof(union MPI2_REPLY_DESCRIPTORS_UNION
);
545 megasas_alloc_rdpq_fusion(struct megasas_instance
*instance
)
548 struct fusion_context
*fusion
;
549 union MPI2_REPLY_DESCRIPTORS_UNION
*reply_desc
;
551 fusion
= instance
->ctrl_context
;
553 fusion
->rdpq_virt
= pci_alloc_consistent(instance
->pdev
,
554 sizeof(struct MPI2_IOC_INIT_RDPQ_ARRAY_ENTRY
) * MAX_MSIX_QUEUES_FUSION
,
556 if (!fusion
->rdpq_virt
) {
557 dev_err(&instance
->pdev
->dev
,
558 "Failed from %s %d\n", __func__
, __LINE__
);
562 memset(fusion
->rdpq_virt
, 0,
563 sizeof(struct MPI2_IOC_INIT_RDPQ_ARRAY_ENTRY
) * MAX_MSIX_QUEUES_FUSION
);
564 count
= instance
->msix_vectors
> 0 ? instance
->msix_vectors
: 1;
565 fusion
->reply_frames_desc_pool
= pci_pool_create("mr_rdpq",
566 instance
->pdev
, fusion
->reply_alloc_sz
, 16, 0);
568 if (!fusion
->reply_frames_desc_pool
) {
569 dev_err(&instance
->pdev
->dev
,
570 "Failed from %s %d\n", __func__
, __LINE__
);
574 for (i
= 0; i
< count
; i
++) {
575 fusion
->reply_frames_desc
[i
] =
576 pci_pool_alloc(fusion
->reply_frames_desc_pool
,
577 GFP_KERNEL
, &fusion
->reply_frames_desc_phys
[i
]);
578 if (!fusion
->reply_frames_desc
[i
]) {
579 dev_err(&instance
->pdev
->dev
,
580 "Failed from %s %d\n", __func__
, __LINE__
);
584 fusion
->rdpq_virt
[i
].RDPQBaseAddress
=
585 cpu_to_le64(fusion
->reply_frames_desc_phys
[i
]);
587 reply_desc
= fusion
->reply_frames_desc
[i
];
588 for (j
= 0; j
< fusion
->reply_q_depth
; j
++, reply_desc
++)
589 reply_desc
->Words
= cpu_to_le64(ULLONG_MAX
);
595 megasas_free_rdpq_fusion(struct megasas_instance
*instance
) {
598 struct fusion_context
*fusion
;
600 fusion
= instance
->ctrl_context
;
602 for (i
= 0; i
< MAX_MSIX_QUEUES_FUSION
; i
++) {
603 if (fusion
->reply_frames_desc
[i
])
604 pci_pool_free(fusion
->reply_frames_desc_pool
,
605 fusion
->reply_frames_desc
[i
],
606 fusion
->reply_frames_desc_phys
[i
]);
609 if (fusion
->reply_frames_desc_pool
)
610 pci_pool_destroy(fusion
->reply_frames_desc_pool
);
612 if (fusion
->rdpq_virt
)
613 pci_free_consistent(instance
->pdev
,
614 sizeof(struct MPI2_IOC_INIT_RDPQ_ARRAY_ENTRY
) * MAX_MSIX_QUEUES_FUSION
,
615 fusion
->rdpq_virt
, fusion
->rdpq_phys
);
619 megasas_free_reply_fusion(struct megasas_instance
*instance
) {
621 struct fusion_context
*fusion
;
623 fusion
= instance
->ctrl_context
;
625 if (fusion
->reply_frames_desc
[0])
626 pci_pool_free(fusion
->reply_frames_desc_pool
,
627 fusion
->reply_frames_desc
[0],
628 fusion
->reply_frames_desc_phys
[0]);
630 if (fusion
->reply_frames_desc_pool
)
631 pci_pool_destroy(fusion
->reply_frames_desc_pool
);
637 * megasas_alloc_cmds_fusion - Allocates the command packets
638 * @instance: Adapter soft state
641 * Each frame has a 32-bit field called context. This context is used to get
642 * back the megasas_cmd_fusion from the frame when a frame gets completed
643 * In this driver, the 32 bit values are the indices into an array cmd_list.
644 * This array is used only to look up the megasas_cmd_fusion given the context.
645 * The free commands themselves are maintained in a linked list called cmd_pool.
647 * cmds are formed in the io_request and sg_frame members of the
648 * megasas_cmd_fusion. The context field is used to get a request descriptor
649 * and is used as SMID of the cmd.
650 * SMID value range is from 1 to max_fw_cmds.
653 megasas_alloc_cmds_fusion(struct megasas_instance
*instance
)
656 struct fusion_context
*fusion
;
657 struct megasas_cmd_fusion
*cmd
;
659 dma_addr_t io_req_base_phys
;
663 fusion
= instance
->ctrl_context
;
665 if (megasas_alloc_cmdlist_fusion(instance
))
668 if (megasas_alloc_request_fusion(instance
))
671 if (instance
->is_rdpq
) {
672 if (megasas_alloc_rdpq_fusion(instance
))
675 if (megasas_alloc_reply_fusion(instance
))
679 /* The first 256 bytes (SMID 0) is not used. Don't add to the cmd list */
680 io_req_base
= fusion
->io_request_frames
+ MEGA_MPI2_RAID_DEFAULT_IO_FRAME_SIZE
;
681 io_req_base_phys
= fusion
->io_request_frames_phys
+ MEGA_MPI2_RAID_DEFAULT_IO_FRAME_SIZE
;
684 * Add all the commands to command pool (fusion->cmd_pool)
687 /* SMID 0 is reserved. Set SMID/index from 1 */
688 for (i
= 0; i
< instance
->max_mpt_cmds
; i
++) {
689 cmd
= fusion
->cmd_list
[i
];
690 offset
= MEGA_MPI2_RAID_DEFAULT_IO_FRAME_SIZE
* i
;
691 memset(cmd
, 0, sizeof(struct megasas_cmd_fusion
));
695 (i
>= instance
->max_scsi_cmds
&& i
< instance
->max_fw_cmds
) ?
696 (i
- instance
->max_scsi_cmds
) :
697 (u32
)ULONG_MAX
; /* Set to Invalid */
698 cmd
->instance
= instance
;
700 (struct MPI2_RAID_SCSI_IO_REQUEST
*)
701 (io_req_base
+ offset
);
702 memset(cmd
->io_request
, 0,
703 sizeof(struct MPI2_RAID_SCSI_IO_REQUEST
));
704 cmd
->io_request_phys_addr
= io_req_base_phys
+ offset
;
705 cmd
->r1_alt_dev_handle
= MR_DEVHANDLE_INVALID
;
708 if (megasas_create_sg_sense_fusion(instance
))
714 megasas_free_cmds_fusion(instance
);
719 * wait_and_poll - Issues a polling command
720 * @instance: Adapter soft state
721 * @cmd: Command packet to be issued
723 * For polling, MFI requires the cmd_status to be set to 0xFF before posting.
726 wait_and_poll(struct megasas_instance
*instance
, struct megasas_cmd
*cmd
,
730 struct megasas_header
*frame_hdr
= &cmd
->frame
->hdr
;
731 struct fusion_context
*fusion
;
733 u32 msecs
= seconds
* 1000;
735 fusion
= instance
->ctrl_context
;
737 * Wait for cmd_status to change
739 for (i
= 0; (i
< msecs
) && (frame_hdr
->cmd_status
== 0xff); i
+= 20) {
744 if (frame_hdr
->cmd_status
== MFI_STAT_INVALID_STATUS
)
746 else if (frame_hdr
->cmd_status
== MFI_STAT_OK
)
753 * megasas_ioc_init_fusion - Initializes the FW
754 * @instance: Adapter soft state
756 * Issues the IOC Init cmd
759 megasas_ioc_init_fusion(struct megasas_instance
*instance
)
761 struct megasas_init_frame
*init_frame
;
762 struct MPI2_IOC_INIT_REQUEST
*IOCInitMessage
= NULL
;
763 dma_addr_t ioc_init_handle
;
764 struct megasas_cmd
*cmd
;
765 u8 ret
, cur_rdpq_mode
;
766 struct fusion_context
*fusion
;
767 union MEGASAS_REQUEST_DESCRIPTOR_UNION req_desc
;
769 struct megasas_header
*frame_hdr
;
770 const char *sys_info
;
771 MFI_CAPABILITIES
*drv_ops
;
775 fusion
= instance
->ctrl_context
;
777 cmd
= megasas_get_cmd(instance
);
780 dev_err(&instance
->pdev
->dev
, "Could not allocate cmd for INIT Frame\n");
785 scratch_pad_2
= readl
786 (&instance
->reg_set
->outbound_scratch_pad_2
);
788 cur_rdpq_mode
= (scratch_pad_2
& MR_RDPQ_MODE_OFFSET
) ? 1 : 0;
790 if (instance
->is_rdpq
&& !cur_rdpq_mode
) {
791 dev_err(&instance
->pdev
->dev
, "Firmware downgrade *NOT SUPPORTED*"
792 " from RDPQ mode to non RDPQ mode\n");
797 instance
->fw_sync_cache_support
= (scratch_pad_2
&
798 MR_CAN_HANDLE_SYNC_CACHE_OFFSET
) ? 1 : 0;
799 dev_info(&instance
->pdev
->dev
, "FW supports sync cache\t: %s\n",
800 instance
->fw_sync_cache_support
? "Yes" : "No");
803 dma_alloc_coherent(&instance
->pdev
->dev
,
804 sizeof(struct MPI2_IOC_INIT_REQUEST
),
805 &ioc_init_handle
, GFP_KERNEL
);
807 if (!IOCInitMessage
) {
808 dev_err(&instance
->pdev
->dev
, "Could not allocate memory for "
814 memset(IOCInitMessage
, 0, sizeof(struct MPI2_IOC_INIT_REQUEST
));
816 IOCInitMessage
->Function
= MPI2_FUNCTION_IOC_INIT
;
817 IOCInitMessage
->WhoInit
= MPI2_WHOINIT_HOST_DRIVER
;
818 IOCInitMessage
->MsgVersion
= cpu_to_le16(MPI2_VERSION
);
819 IOCInitMessage
->HeaderVersion
= cpu_to_le16(MPI2_HEADER_VERSION
);
820 IOCInitMessage
->SystemRequestFrameSize
= cpu_to_le16(MEGA_MPI2_RAID_DEFAULT_IO_FRAME_SIZE
/ 4);
822 IOCInitMessage
->ReplyDescriptorPostQueueDepth
= cpu_to_le16(fusion
->reply_q_depth
);
823 IOCInitMessage
->ReplyDescriptorPostQueueAddress
= instance
->is_rdpq
?
824 cpu_to_le64(fusion
->rdpq_phys
) :
825 cpu_to_le64(fusion
->reply_frames_desc_phys
[0]);
826 IOCInitMessage
->MsgFlags
= instance
->is_rdpq
?
827 MPI2_IOCINIT_MSGFLAG_RDPQ_ARRAY_MODE
: 0;
828 IOCInitMessage
->SystemRequestFrameBaseAddress
= cpu_to_le64(fusion
->io_request_frames_phys
);
829 IOCInitMessage
->HostMSIxVectors
= instance
->msix_vectors
;
830 IOCInitMessage
->HostPageSize
= MR_DEFAULT_NVME_PAGE_SHIFT
;
831 init_frame
= (struct megasas_init_frame
*)cmd
->frame
;
832 memset(init_frame
, 0, MEGAMFI_FRAME_SIZE
);
834 frame_hdr
= &cmd
->frame
->hdr
;
835 frame_hdr
->cmd_status
= 0xFF;
836 frame_hdr
->flags
= cpu_to_le16(
837 le16_to_cpu(frame_hdr
->flags
) |
838 MFI_FRAME_DONT_POST_IN_REPLY_QUEUE
);
840 init_frame
->cmd
= MFI_CMD_INIT
;
841 init_frame
->cmd_status
= 0xFF;
843 drv_ops
= (MFI_CAPABILITIES
*) &(init_frame
->driver_operations
);
845 /* driver support Extended MSIX */
846 if (fusion
->adapter_type
>= INVADER_SERIES
)
847 drv_ops
->mfi_capabilities
.support_additional_msix
= 1;
848 /* driver supports HA / Remote LUN over Fast Path interface */
849 drv_ops
->mfi_capabilities
.support_fp_remote_lun
= 1;
851 drv_ops
->mfi_capabilities
.support_max_255lds
= 1;
852 drv_ops
->mfi_capabilities
.support_ndrive_r1_lb
= 1;
853 drv_ops
->mfi_capabilities
.security_protocol_cmds_fw
= 1;
855 if (instance
->max_chain_frame_sz
> MEGASAS_CHAIN_FRAME_SZ_MIN
)
856 drv_ops
->mfi_capabilities
.support_ext_io_size
= 1;
858 drv_ops
->mfi_capabilities
.support_fp_rlbypass
= 1;
859 if (!dual_qdepth_disable
)
860 drv_ops
->mfi_capabilities
.support_ext_queue_depth
= 1;
862 drv_ops
->mfi_capabilities
.support_qd_throttling
= 1;
863 drv_ops
->mfi_capabilities
.support_pd_map_target_id
= 1;
864 /* Convert capability to LE32 */
865 cpu_to_le32s((u32
*)&init_frame
->driver_operations
.mfi_capabilities
);
867 sys_info
= dmi_get_system_info(DMI_PRODUCT_UUID
);
868 if (instance
->system_info_buf
&& sys_info
) {
869 memcpy(instance
->system_info_buf
->systemId
, sys_info
,
870 strlen(sys_info
) > 64 ? 64 : strlen(sys_info
));
871 instance
->system_info_buf
->systemIdLength
=
872 strlen(sys_info
) > 64 ? 64 : strlen(sys_info
);
873 init_frame
->system_info_lo
= instance
->system_info_h
;
874 init_frame
->system_info_hi
= 0;
877 init_frame
->queue_info_new_phys_addr_hi
=
878 cpu_to_le32(upper_32_bits(ioc_init_handle
));
879 init_frame
->queue_info_new_phys_addr_lo
=
880 cpu_to_le32(lower_32_bits(ioc_init_handle
));
881 init_frame
->data_xfer_len
= cpu_to_le32(sizeof(struct MPI2_IOC_INIT_REQUEST
));
883 req_desc
.u
.low
= cpu_to_le32(lower_32_bits(cmd
->frame_phys_addr
));
884 req_desc
.u
.high
= cpu_to_le32(upper_32_bits(cmd
->frame_phys_addr
));
885 req_desc
.MFAIo
.RequestFlags
=
886 (MEGASAS_REQ_DESCRIPT_FLAGS_MFA
<<
887 MEGASAS_REQ_DESCRIPT_FLAGS_TYPE_SHIFT
);
890 * disable the intr before firing the init frame
892 instance
->instancet
->disable_intr(instance
);
894 for (i
= 0; i
< (10 * 1000); i
+= 20) {
895 if (readl(&instance
->reg_set
->doorbell
) & 1)
901 /* For Ventura also IOC INIT required 64 bit Descriptor write. */
902 spin_lock_irqsave(&instance
->hba_lock
, flags
);
903 writel(le32_to_cpu(req_desc
.u
.low
),
904 &instance
->reg_set
->inbound_low_queue_port
);
905 writel(le32_to_cpu(req_desc
.u
.high
),
906 &instance
->reg_set
->inbound_high_queue_port
);
908 spin_unlock_irqrestore(&instance
->hba_lock
, flags
);
910 wait_and_poll(instance
, cmd
, MFI_POLL_TIMEOUT_SECS
);
912 frame_hdr
= &cmd
->frame
->hdr
;
913 if (frame_hdr
->cmd_status
!= 0) {
917 dev_info(&instance
->pdev
->dev
, "Init cmd success\n");
922 megasas_return_cmd(instance
, cmd
);
924 dma_free_coherent(&instance
->pdev
->dev
,
925 sizeof(struct MPI2_IOC_INIT_REQUEST
),
926 IOCInitMessage
, ioc_init_handle
);
932 * megasas_sync_pd_seq_num - JBOD SEQ MAP
933 * @instance: Adapter soft state
934 * @pend: set to 1, if it is pended jbod map.
936 * Issue Jbod map to the firmware. If it is pended command,
937 * issue command and return. If it is first instance of jbod map
938 * issue and receive command.
941 megasas_sync_pd_seq_num(struct megasas_instance
*instance
, bool pend
) {
944 struct megasas_cmd
*cmd
;
945 struct megasas_dcmd_frame
*dcmd
;
946 struct fusion_context
*fusion
= instance
->ctrl_context
;
947 struct MR_PD_CFG_SEQ_NUM_SYNC
*pd_sync
;
950 pd_sync
= (void *)fusion
->pd_seq_sync
[(instance
->pd_seq_map_id
& 1)];
951 pd_seq_h
= fusion
->pd_seq_phys
[(instance
->pd_seq_map_id
& 1)];
952 pd_seq_map_sz
= sizeof(struct MR_PD_CFG_SEQ_NUM_SYNC
) +
953 (sizeof(struct MR_PD_CFG_SEQ
) *
954 (MAX_PHYSICAL_DEVICES
- 1));
956 cmd
= megasas_get_cmd(instance
);
958 dev_err(&instance
->pdev
->dev
,
959 "Could not get mfi cmd. Fail from %s %d\n",
964 dcmd
= &cmd
->frame
->dcmd
;
966 memset(pd_sync
, 0, pd_seq_map_sz
);
967 memset(dcmd
->mbox
.b
, 0, MFI_MBOX_SIZE
);
968 dcmd
->cmd
= MFI_CMD_DCMD
;
969 dcmd
->cmd_status
= 0xFF;
973 dcmd
->data_xfer_len
= cpu_to_le32(pd_seq_map_sz
);
974 dcmd
->opcode
= cpu_to_le32(MR_DCMD_SYSTEM_PD_MAP_GET_INFO
);
975 dcmd
->sgl
.sge32
[0].phys_addr
= cpu_to_le32(pd_seq_h
);
976 dcmd
->sgl
.sge32
[0].length
= cpu_to_le32(pd_seq_map_sz
);
979 dcmd
->mbox
.b
[0] = MEGASAS_DCMD_MBOX_PEND_FLAG
;
980 dcmd
->flags
= cpu_to_le16(MFI_FRAME_DIR_WRITE
);
981 instance
->jbod_seq_cmd
= cmd
;
982 instance
->instancet
->issue_dcmd(instance
, cmd
);
986 dcmd
->flags
= cpu_to_le16(MFI_FRAME_DIR_READ
);
988 /* Below code is only for non pended DCMD */
989 if (instance
->ctrl_context
&& !instance
->mask_interrupts
)
990 ret
= megasas_issue_blocked_cmd(instance
, cmd
,
991 MFI_IO_TIMEOUT_SECS
);
993 ret
= megasas_issue_polled(instance
, cmd
);
995 if (le32_to_cpu(pd_sync
->count
) > MAX_PHYSICAL_DEVICES
) {
996 dev_warn(&instance
->pdev
->dev
,
997 "driver supports max %d JBOD, but FW reports %d\n",
998 MAX_PHYSICAL_DEVICES
, le32_to_cpu(pd_sync
->count
));
1002 if (ret
== DCMD_TIMEOUT
&& instance
->ctrl_context
)
1003 megaraid_sas_kill_hba(instance
);
1005 if (ret
== DCMD_SUCCESS
)
1006 instance
->pd_seq_map_id
++;
1008 megasas_return_cmd(instance
, cmd
);
1013 * megasas_get_ld_map_info - Returns FW's ld_map structure
1014 * @instance: Adapter soft state
1015 * @pend: Pend the command or not
1016 * Issues an internal command (DCMD) to get the FW's controller PD
1017 * list structure. This information is mainly used to find out SYSTEM
1018 * supported by the FW.
1019 * dcmd.mbox value setting for MR_DCMD_LD_MAP_GET_INFO
1020 * dcmd.mbox.b[0] - number of LDs being sync'd
1021 * dcmd.mbox.b[1] - 0 - complete command immediately.
1022 * - 1 - pend till config change
1023 * dcmd.mbox.b[2] - 0 - supports max 64 lds and uses legacy MR_FW_RAID_MAP
1024 * - 1 - supports max MAX_LOGICAL_DRIVES_EXT lds and
1025 * uses extended struct MR_FW_RAID_MAP_EXT
1028 megasas_get_ld_map_info(struct megasas_instance
*instance
)
1031 struct megasas_cmd
*cmd
;
1032 struct megasas_dcmd_frame
*dcmd
;
1034 dma_addr_t ci_h
= 0;
1036 struct fusion_context
*fusion
;
1038 cmd
= megasas_get_cmd(instance
);
1041 dev_printk(KERN_DEBUG
, &instance
->pdev
->dev
, "Failed to get cmd for map info\n");
1045 fusion
= instance
->ctrl_context
;
1048 megasas_return_cmd(instance
, cmd
);
1052 dcmd
= &cmd
->frame
->dcmd
;
1054 size_map_info
= fusion
->current_map_sz
;
1056 ci
= (void *) fusion
->ld_map
[(instance
->map_id
& 1)];
1057 ci_h
= fusion
->ld_map_phys
[(instance
->map_id
& 1)];
1060 dev_printk(KERN_DEBUG
, &instance
->pdev
->dev
, "Failed to alloc mem for ld_map_info\n");
1061 megasas_return_cmd(instance
, cmd
);
1065 memset(ci
, 0, fusion
->max_map_sz
);
1066 memset(dcmd
->mbox
.b
, 0, MFI_MBOX_SIZE
);
1067 dcmd
->cmd
= MFI_CMD_DCMD
;
1068 dcmd
->cmd_status
= 0xFF;
1069 dcmd
->sge_count
= 1;
1070 dcmd
->flags
= cpu_to_le16(MFI_FRAME_DIR_READ
);
1073 dcmd
->data_xfer_len
= cpu_to_le32(size_map_info
);
1074 dcmd
->opcode
= cpu_to_le32(MR_DCMD_LD_MAP_GET_INFO
);
1075 dcmd
->sgl
.sge32
[0].phys_addr
= cpu_to_le32(ci_h
);
1076 dcmd
->sgl
.sge32
[0].length
= cpu_to_le32(size_map_info
);
1078 if (instance
->ctrl_context
&& !instance
->mask_interrupts
)
1079 ret
= megasas_issue_blocked_cmd(instance
, cmd
,
1080 MFI_IO_TIMEOUT_SECS
);
1082 ret
= megasas_issue_polled(instance
, cmd
);
1084 if (ret
== DCMD_TIMEOUT
&& instance
->ctrl_context
)
1085 megaraid_sas_kill_hba(instance
);
1087 megasas_return_cmd(instance
, cmd
);
1093 megasas_get_map_info(struct megasas_instance
*instance
)
1095 struct fusion_context
*fusion
= instance
->ctrl_context
;
1097 fusion
->fast_path_io
= 0;
1098 if (!megasas_get_ld_map_info(instance
)) {
1099 if (MR_ValidateMapInfo(instance
)) {
1100 fusion
->fast_path_io
= 1;
1108 * megasas_sync_map_info - Returns FW's ld_map structure
1109 * @instance: Adapter soft state
1111 * Issues an internal command (DCMD) to get the FW's controller PD
1112 * list structure. This information is mainly used to find out SYSTEM
1113 * supported by the FW.
1116 megasas_sync_map_info(struct megasas_instance
*instance
)
1119 struct megasas_cmd
*cmd
;
1120 struct megasas_dcmd_frame
*dcmd
;
1123 struct fusion_context
*fusion
;
1124 struct MR_LD_TARGET_SYNC
*ci
= NULL
;
1125 struct MR_DRV_RAID_MAP_ALL
*map
;
1126 struct MR_LD_RAID
*raid
;
1127 struct MR_LD_TARGET_SYNC
*ld_sync
;
1128 dma_addr_t ci_h
= 0;
1131 cmd
= megasas_get_cmd(instance
);
1134 dev_printk(KERN_DEBUG
, &instance
->pdev
->dev
, "Failed to get cmd for sync info\n");
1138 fusion
= instance
->ctrl_context
;
1141 megasas_return_cmd(instance
, cmd
);
1145 map
= fusion
->ld_drv_map
[instance
->map_id
& 1];
1147 num_lds
= le16_to_cpu(map
->raidMap
.ldCount
);
1149 dcmd
= &cmd
->frame
->dcmd
;
1151 size_sync_info
= sizeof(struct MR_LD_TARGET_SYNC
) *num_lds
;
1153 memset(dcmd
->mbox
.b
, 0, MFI_MBOX_SIZE
);
1155 ci
= (struct MR_LD_TARGET_SYNC
*)
1156 fusion
->ld_map
[(instance
->map_id
- 1) & 1];
1157 memset(ci
, 0, fusion
->max_map_sz
);
1159 ci_h
= fusion
->ld_map_phys
[(instance
->map_id
- 1) & 1];
1161 ld_sync
= (struct MR_LD_TARGET_SYNC
*)ci
;
1163 for (i
= 0; i
< num_lds
; i
++, ld_sync
++) {
1164 raid
= MR_LdRaidGet(i
, map
);
1165 ld_sync
->targetId
= MR_GetLDTgtId(i
, map
);
1166 ld_sync
->seqNum
= raid
->seqNum
;
1169 size_map_info
= fusion
->current_map_sz
;
1171 dcmd
->cmd
= MFI_CMD_DCMD
;
1172 dcmd
->cmd_status
= 0xFF;
1173 dcmd
->sge_count
= 1;
1174 dcmd
->flags
= cpu_to_le16(MFI_FRAME_DIR_WRITE
);
1177 dcmd
->data_xfer_len
= cpu_to_le32(size_map_info
);
1178 dcmd
->mbox
.b
[0] = num_lds
;
1179 dcmd
->mbox
.b
[1] = MEGASAS_DCMD_MBOX_PEND_FLAG
;
1180 dcmd
->opcode
= cpu_to_le32(MR_DCMD_LD_MAP_GET_INFO
);
1181 dcmd
->sgl
.sge32
[0].phys_addr
= cpu_to_le32(ci_h
);
1182 dcmd
->sgl
.sge32
[0].length
= cpu_to_le32(size_map_info
);
1184 instance
->map_update_cmd
= cmd
;
1186 instance
->instancet
->issue_dcmd(instance
, cmd
);
1192 * meagasas_display_intel_branding - Display branding string
1193 * @instance: per adapter object
1198 megasas_display_intel_branding(struct megasas_instance
*instance
)
1200 if (instance
->pdev
->subsystem_vendor
!= PCI_VENDOR_ID_INTEL
)
1203 switch (instance
->pdev
->device
) {
1204 case PCI_DEVICE_ID_LSI_INVADER
:
1205 switch (instance
->pdev
->subsystem_device
) {
1206 case MEGARAID_INTEL_RS3DC080_SSDID
:
1207 dev_info(&instance
->pdev
->dev
, "scsi host %d: %s\n",
1208 instance
->host
->host_no
,
1209 MEGARAID_INTEL_RS3DC080_BRANDING
);
1211 case MEGARAID_INTEL_RS3DC040_SSDID
:
1212 dev_info(&instance
->pdev
->dev
, "scsi host %d: %s\n",
1213 instance
->host
->host_no
,
1214 MEGARAID_INTEL_RS3DC040_BRANDING
);
1216 case MEGARAID_INTEL_RS3SC008_SSDID
:
1217 dev_info(&instance
->pdev
->dev
, "scsi host %d: %s\n",
1218 instance
->host
->host_no
,
1219 MEGARAID_INTEL_RS3SC008_BRANDING
);
1221 case MEGARAID_INTEL_RS3MC044_SSDID
:
1222 dev_info(&instance
->pdev
->dev
, "scsi host %d: %s\n",
1223 instance
->host
->host_no
,
1224 MEGARAID_INTEL_RS3MC044_BRANDING
);
1230 case PCI_DEVICE_ID_LSI_FURY
:
1231 switch (instance
->pdev
->subsystem_device
) {
1232 case MEGARAID_INTEL_RS3WC080_SSDID
:
1233 dev_info(&instance
->pdev
->dev
, "scsi host %d: %s\n",
1234 instance
->host
->host_no
,
1235 MEGARAID_INTEL_RS3WC080_BRANDING
);
1237 case MEGARAID_INTEL_RS3WC040_SSDID
:
1238 dev_info(&instance
->pdev
->dev
, "scsi host %d: %s\n",
1239 instance
->host
->host_no
,
1240 MEGARAID_INTEL_RS3WC040_BRANDING
);
1246 case PCI_DEVICE_ID_LSI_CUTLASS_52
:
1247 case PCI_DEVICE_ID_LSI_CUTLASS_53
:
1248 switch (instance
->pdev
->subsystem_device
) {
1249 case MEGARAID_INTEL_RMS3BC160_SSDID
:
1250 dev_info(&instance
->pdev
->dev
, "scsi host %d: %s\n",
1251 instance
->host
->host_no
,
1252 MEGARAID_INTEL_RMS3BC160_BRANDING
);
1264 * megasas_init_adapter_fusion - Initializes the FW
1265 * @instance: Adapter soft state
1267 * This is the main function for initializing firmware.
1270 megasas_init_adapter_fusion(struct megasas_instance
*instance
)
1272 struct megasas_register_set __iomem
*reg_set
;
1273 struct fusion_context
*fusion
;
1278 fusion
= instance
->ctrl_context
;
1280 reg_set
= instance
->reg_set
;
1282 megasas_fusion_update_can_queue(instance
, PROBE_CONTEXT
);
1285 * Only Driver's internal DCMDs and IOCTL DCMDs needs to have MFI frames
1287 instance
->max_mfi_cmds
=
1288 MEGASAS_FUSION_INTERNAL_CMDS
+ MEGASAS_FUSION_IOCTL_CMDS
;
1290 max_cmd
= instance
->max_fw_cmds
;
1292 fusion
->reply_q_depth
= 2 * (((max_cmd
+ 1 + 15)/16)*16);
1294 fusion
->request_alloc_sz
=
1295 sizeof(union MEGASAS_REQUEST_DESCRIPTOR_UNION
) * instance
->max_mpt_cmds
;
1296 fusion
->reply_alloc_sz
= sizeof(union MPI2_REPLY_DESCRIPTORS_UNION
)
1297 *(fusion
->reply_q_depth
);
1298 fusion
->io_frames_alloc_sz
= MEGA_MPI2_RAID_DEFAULT_IO_FRAME_SIZE
+
1299 (MEGA_MPI2_RAID_DEFAULT_IO_FRAME_SIZE
1300 * (instance
->max_mpt_cmds
+ 1)); /* Extra 1 for SMID 0 */
1302 scratch_pad_2
= readl(&instance
->reg_set
->outbound_scratch_pad_2
);
1303 /* If scratch_pad_2 & MEGASAS_MAX_CHAIN_SIZE_UNITS_MASK is set,
1304 * Firmware support extended IO chain frame which is 4 times more than
1306 * Legacy Firmware - Frame size is (8 * 128) = 1K
1307 * 1M IO Firmware - Frame size is (8 * 128 * 4) = 4K
1309 if (scratch_pad_2
& MEGASAS_MAX_CHAIN_SIZE_UNITS_MASK
)
1310 instance
->max_chain_frame_sz
=
1311 ((scratch_pad_2
& MEGASAS_MAX_CHAIN_SIZE_MASK
) >>
1312 MEGASAS_MAX_CHAIN_SHIFT
) * MEGASAS_1MB_IO
;
1314 instance
->max_chain_frame_sz
=
1315 ((scratch_pad_2
& MEGASAS_MAX_CHAIN_SIZE_MASK
) >>
1316 MEGASAS_MAX_CHAIN_SHIFT
) * MEGASAS_256K_IO
;
1318 if (instance
->max_chain_frame_sz
< MEGASAS_CHAIN_FRAME_SZ_MIN
) {
1319 dev_warn(&instance
->pdev
->dev
, "frame size %d invalid, fall back to legacy max frame size %d\n",
1320 instance
->max_chain_frame_sz
,
1321 MEGASAS_CHAIN_FRAME_SZ_MIN
);
1322 instance
->max_chain_frame_sz
= MEGASAS_CHAIN_FRAME_SZ_MIN
;
1325 fusion
->max_sge_in_main_msg
=
1326 (MEGA_MPI2_RAID_DEFAULT_IO_FRAME_SIZE
1327 - offsetof(struct MPI2_RAID_SCSI_IO_REQUEST
, SGL
))/16;
1329 fusion
->max_sge_in_chain
=
1330 instance
->max_chain_frame_sz
1331 / sizeof(union MPI2_SGE_IO_UNION
);
1333 instance
->max_num_sge
=
1334 rounddown_pow_of_two(fusion
->max_sge_in_main_msg
1335 + fusion
->max_sge_in_chain
- 2);
1337 /* Used for pass thru MFI frame (DCMD) */
1338 fusion
->chain_offset_mfi_pthru
=
1339 offsetof(struct MPI2_RAID_SCSI_IO_REQUEST
, SGL
)/16;
1341 fusion
->chain_offset_io_request
=
1342 (MEGA_MPI2_RAID_DEFAULT_IO_FRAME_SIZE
-
1343 sizeof(union MPI2_SGE_IO_UNION
))/16;
1345 count
= instance
->msix_vectors
> 0 ? instance
->msix_vectors
: 1;
1346 for (i
= 0 ; i
< count
; i
++)
1347 fusion
->last_reply_idx
[i
] = 0;
1350 * For fusion adapters, 3 commands for IOCTL and 8 commands
1351 * for driver's internal DCMDs.
1353 instance
->max_scsi_cmds
= instance
->max_fw_cmds
-
1354 (MEGASAS_FUSION_INTERNAL_CMDS
+
1355 MEGASAS_FUSION_IOCTL_CMDS
);
1356 sema_init(&instance
->ioctl_sem
, MEGASAS_FUSION_IOCTL_CMDS
);
1359 * Allocate memory for descriptors
1360 * Create a pool of commands
1362 if (megasas_alloc_cmds(instance
))
1363 goto fail_alloc_mfi_cmds
;
1364 if (megasas_alloc_cmds_fusion(instance
))
1365 goto fail_alloc_cmds
;
1367 if (megasas_ioc_init_fusion(instance
))
1370 megasas_display_intel_branding(instance
);
1371 if (megasas_get_ctrl_info(instance
)) {
1372 dev_err(&instance
->pdev
->dev
,
1373 "Could not get controller info. Fail from %s %d\n",
1374 __func__
, __LINE__
);
1378 instance
->flag_ieee
= 1;
1379 instance
->r1_ldio_hint_default
= MR_R1_LDIO_PIGGYBACK_DEFAULT
;
1380 fusion
->fast_path_io
= 0;
1382 fusion
->drv_map_pages
= get_order(fusion
->drv_map_sz
);
1383 for (i
= 0; i
< 2; i
++) {
1384 fusion
->ld_map
[i
] = NULL
;
1385 fusion
->ld_drv_map
[i
] = (void *)__get_free_pages(GFP_KERNEL
,
1386 fusion
->drv_map_pages
);
1387 if (!fusion
->ld_drv_map
[i
]) {
1388 dev_err(&instance
->pdev
->dev
, "Could not allocate "
1389 "memory for local map info for %d pages\n",
1390 fusion
->drv_map_pages
);
1392 free_pages((ulong
)fusion
->ld_drv_map
[0],
1393 fusion
->drv_map_pages
);
1396 memset(fusion
->ld_drv_map
[i
], 0,
1397 ((1 << PAGE_SHIFT
) << fusion
->drv_map_pages
));
1400 for (i
= 0; i
< 2; i
++) {
1401 fusion
->ld_map
[i
] = dma_alloc_coherent(&instance
->pdev
->dev
,
1403 &fusion
->ld_map_phys
[i
],
1405 if (!fusion
->ld_map
[i
]) {
1406 dev_err(&instance
->pdev
->dev
, "Could not allocate memory "
1412 if (!megasas_get_map_info(instance
))
1413 megasas_sync_map_info(instance
);
1419 dma_free_coherent(&instance
->pdev
->dev
, fusion
->max_map_sz
,
1420 fusion
->ld_map
[0], fusion
->ld_map_phys
[0]);
1422 megasas_free_cmds_fusion(instance
);
1424 megasas_free_cmds(instance
);
1425 fail_alloc_mfi_cmds
:
1430 * map_cmd_status - Maps FW cmd status to OS cmd status
1431 * @cmd : Pointer to cmd
1432 * @status : status of cmd returned by FW
1433 * @ext_status : ext status of cmd returned by FW
1437 map_cmd_status(struct fusion_context
*fusion
,
1438 struct scsi_cmnd
*scmd
, u8 status
, u8 ext_status
,
1439 u32 data_length
, u8
*sense
)
1444 cmd_type
= megasas_cmd_type(scmd
);
1448 scmd
->result
= DID_OK
<< 16;
1451 case MFI_STAT_SCSI_IO_FAILED
:
1452 case MFI_STAT_LD_INIT_IN_PROGRESS
:
1453 scmd
->result
= (DID_ERROR
<< 16) | ext_status
;
1456 case MFI_STAT_SCSI_DONE_WITH_ERROR
:
1458 scmd
->result
= (DID_OK
<< 16) | ext_status
;
1459 if (ext_status
== SAM_STAT_CHECK_CONDITION
) {
1460 memset(scmd
->sense_buffer
, 0,
1461 SCSI_SENSE_BUFFERSIZE
);
1462 memcpy(scmd
->sense_buffer
, sense
,
1463 SCSI_SENSE_BUFFERSIZE
);
1464 scmd
->result
|= DRIVER_SENSE
<< 24;
1468 * If the IO request is partially completed, then MR FW will
1469 * update "io_request->DataLength" field with actual number of
1470 * bytes transferred.Driver will set residual bytes count in
1471 * SCSI command structure.
1473 resid
= (scsi_bufflen(scmd
) - data_length
);
1474 scsi_set_resid(scmd
, resid
);
1477 ((cmd_type
== READ_WRITE_LDIO
) ||
1478 (cmd_type
== READ_WRITE_SYSPDIO
)))
1479 scmd_printk(KERN_INFO
, scmd
, "BRCM Debug mfi stat 0x%x, data len"
1480 " requested/completed 0x%x/0x%x\n",
1481 status
, scsi_bufflen(scmd
), data_length
);
1484 case MFI_STAT_LD_OFFLINE
:
1485 case MFI_STAT_DEVICE_NOT_FOUND
:
1486 scmd
->result
= DID_BAD_TARGET
<< 16;
1488 case MFI_STAT_CONFIG_SEQ_MISMATCH
:
1489 scmd
->result
= DID_IMM_RETRY
<< 16;
1492 scmd
->result
= DID_ERROR
<< 16;
1498 * megasas_is_prp_possible -
1499 * Checks if native NVMe PRPs can be built for the IO
1501 * @instance: Adapter soft state
1502 * @scmd: SCSI command from the mid-layer
1503 * @sge_count: scatter gather element count.
1505 * Returns: true: PRPs can be built
1506 * false: IEEE SGLs needs to be built
1509 megasas_is_prp_possible(struct megasas_instance
*instance
,
1510 struct scsi_cmnd
*scmd
, int sge_count
)
1512 struct fusion_context
*fusion
;
1514 u32 data_length
= 0;
1515 struct scatterlist
*sg_scmd
;
1516 bool build_prp
= false;
1517 u32 mr_nvme_pg_size
;
1519 mr_nvme_pg_size
= max_t(u32
, instance
->nvme_page_size
,
1520 MR_DEFAULT_NVME_PAGE_SIZE
);
1521 fusion
= instance
->ctrl_context
;
1522 data_length
= scsi_bufflen(scmd
);
1523 sg_scmd
= scsi_sglist(scmd
);
1526 * NVMe uses one PRP for each page (or part of a page)
1527 * look at the data length - if 4 pages or less then IEEE is OK
1528 * if > 5 pages then we need to build a native SGL
1529 * if > 4 and <= 5 pages, then check physical address of 1st SG entry
1530 * if this first size in the page is >= the residual beyond 4 pages
1531 * then use IEEE, otherwise use native SGL
1534 if (data_length
> (mr_nvme_pg_size
* 5)) {
1536 } else if ((data_length
> (mr_nvme_pg_size
* 4)) &&
1537 (data_length
<= (mr_nvme_pg_size
* 5))) {
1538 /* check if 1st SG entry size is < residual beyond 4 pages */
1539 if (sg_dma_len(sg_scmd
) < (data_length
- (mr_nvme_pg_size
* 4)))
1544 * Below code detects gaps/holes in IO data buffers.
1545 * What does holes/gaps mean?
1546 * Any SGE except first one in a SGL starts at non NVME page size
1547 * aligned address OR Any SGE except last one in a SGL ends at
1548 * non NVME page size boundary.
1550 * Driver has already informed block layer by setting boundary rules for
1551 * bio merging done at NVME page size boundary calling kernel API
1552 * blk_queue_virt_boundary inside slave_config.
1553 * Still there is possibility of IO coming with holes to driver because of
1554 * IO merging done by IO scheduler.
1556 * With SCSI BLK MQ enabled, there will be no IO with holes as there is no
1557 * IO scheduling so no IO merging.
1559 * With SCSI BLK MQ disabled, IO scheduler may attempt to merge IOs and
1560 * then sending IOs with holes.
1562 * Though driver can request block layer to disable IO merging by calling-
1563 * queue_flag_set_unlocked(QUEUE_FLAG_NOMERGES, sdev->request_queue) but
1564 * user may tune sysfs parameter- nomerges again to 0 or 1.
1566 * If in future IO scheduling is enabled with SCSI BLK MQ,
1567 * this algorithm to detect holes will be required in driver
1568 * for SCSI BLK MQ enabled case as well.
1572 scsi_for_each_sg(scmd
, sg_scmd
, sge_count
, i
) {
1573 if ((i
!= 0) && (i
!= (sge_count
- 1))) {
1574 if (mega_mod64(sg_dma_len(sg_scmd
), mr_nvme_pg_size
) ||
1575 mega_mod64(sg_dma_address(sg_scmd
),
1578 atomic_inc(&instance
->sge_holes_type1
);
1583 if ((sge_count
> 1) && (i
== 0)) {
1584 if ((mega_mod64((sg_dma_address(sg_scmd
) +
1585 sg_dma_len(sg_scmd
)),
1586 mr_nvme_pg_size
))) {
1588 atomic_inc(&instance
->sge_holes_type2
);
1593 if ((sge_count
> 1) && (i
== (sge_count
- 1))) {
1594 if (mega_mod64(sg_dma_address(sg_scmd
),
1597 atomic_inc(&instance
->sge_holes_type3
);
1607 * megasas_make_prp_nvme -
1608 * Prepare PRPs(Physical Region Page)- SGLs specific to NVMe drives only
1610 * @instance: Adapter soft state
1611 * @scmd: SCSI command from the mid-layer
1612 * @sgl_ptr: SGL to be filled in
1613 * @cmd: Fusion command frame
1614 * @sge_count: scatter gather element count.
1616 * Returns: true: PRPs are built
1617 * false: IEEE SGLs needs to be built
1620 megasas_make_prp_nvme(struct megasas_instance
*instance
, struct scsi_cmnd
*scmd
,
1621 struct MPI25_IEEE_SGE_CHAIN64
*sgl_ptr
,
1622 struct megasas_cmd_fusion
*cmd
, int sge_count
)
1624 int sge_len
, offset
, num_prp_in_chain
= 0;
1625 struct MPI25_IEEE_SGE_CHAIN64
*main_chain_element
, *ptr_first_sgl
;
1627 dma_addr_t ptr_sgl_phys
;
1629 u32 page_mask
, page_mask_result
;
1630 struct scatterlist
*sg_scmd
;
1632 bool build_prp
= false;
1633 int data_len
= scsi_bufflen(scmd
);
1634 struct fusion_context
*fusion
;
1635 u32 mr_nvme_pg_size
= max_t(u32
, instance
->nvme_page_size
,
1636 MR_DEFAULT_NVME_PAGE_SIZE
);
1638 fusion
= instance
->ctrl_context
;
1640 build_prp
= megasas_is_prp_possible(instance
, scmd
, sge_count
);
1646 * Nvme has a very convoluted prp format. One prp is required
1647 * for each page or partial page. Driver need to split up OS sg_list
1648 * entries if it is longer than one page or cross a page
1649 * boundary. Driver also have to insert a PRP list pointer entry as
1650 * the last entry in each physical page of the PRP list.
1652 * NOTE: The first PRP "entry" is actually placed in the first
1653 * SGL entry in the main message as IEEE 64 format. The 2nd
1654 * entry in the main message is the chain element, and the rest
1655 * of the PRP entries are built in the contiguous pcie buffer.
1657 page_mask
= mr_nvme_pg_size
- 1;
1658 ptr_sgl
= (u64
*)cmd
->sg_frame
;
1659 ptr_sgl_phys
= cmd
->sg_frame_phys_addr
;
1660 memset(ptr_sgl
, 0, instance
->max_chain_frame_sz
);
1662 /* Build chain frame element which holds all prps except first*/
1663 main_chain_element
= (struct MPI25_IEEE_SGE_CHAIN64
*)
1664 ((u8
*)sgl_ptr
+ sizeof(struct MPI25_IEEE_SGE_CHAIN64
));
1666 main_chain_element
->Address
= cpu_to_le64(ptr_sgl_phys
);
1667 main_chain_element
->NextChainOffset
= 0;
1668 main_chain_element
->Flags
= IEEE_SGE_FLAGS_CHAIN_ELEMENT
|
1669 IEEE_SGE_FLAGS_SYSTEM_ADDR
|
1670 MPI26_IEEE_SGE_FLAGS_NSF_NVME_PRP
;
1672 /* Build first prp, sge need not to be page aligned*/
1673 ptr_first_sgl
= sgl_ptr
;
1674 sg_scmd
= scsi_sglist(scmd
);
1675 sge_addr
= sg_dma_address(sg_scmd
);
1676 sge_len
= sg_dma_len(sg_scmd
);
1678 offset
= (u32
)(sge_addr
& page_mask
);
1679 first_prp_len
= mr_nvme_pg_size
- offset
;
1681 ptr_first_sgl
->Address
= cpu_to_le64(sge_addr
);
1682 ptr_first_sgl
->Length
= cpu_to_le32(first_prp_len
);
1684 data_len
-= first_prp_len
;
1686 if (sge_len
> first_prp_len
) {
1687 sge_addr
+= first_prp_len
;
1688 sge_len
-= first_prp_len
;
1689 } else if (sge_len
== first_prp_len
) {
1690 sg_scmd
= sg_next(sg_scmd
);
1691 sge_addr
= sg_dma_address(sg_scmd
);
1692 sge_len
= sg_dma_len(sg_scmd
);
1696 offset
= (u32
)(sge_addr
& page_mask
);
1698 /* Put PRP pointer due to page boundary*/
1699 page_mask_result
= (uintptr_t)(ptr_sgl
+ 1) & page_mask
;
1700 if (unlikely(!page_mask_result
)) {
1701 scmd_printk(KERN_NOTICE
,
1702 scmd
, "page boundary ptr_sgl: 0x%p\n",
1705 *ptr_sgl
= cpu_to_le64(ptr_sgl_phys
);
1710 *ptr_sgl
= cpu_to_le64(sge_addr
);
1715 sge_addr
+= mr_nvme_pg_size
;
1716 sge_len
-= mr_nvme_pg_size
;
1717 data_len
-= mr_nvme_pg_size
;
1725 sg_scmd
= sg_next(sg_scmd
);
1726 sge_addr
= sg_dma_address(sg_scmd
);
1727 sge_len
= sg_dma_len(sg_scmd
);
1730 main_chain_element
->Length
=
1731 cpu_to_le32(num_prp_in_chain
* sizeof(u64
));
1733 atomic_inc(&instance
->prp_sgl
);
1738 * megasas_make_sgl_fusion - Prepares 32-bit SGL
1739 * @instance: Adapter soft state
1740 * @scp: SCSI command from the mid-layer
1741 * @sgl_ptr: SGL to be filled in
1742 * @cmd: cmd we are working on
1743 * @sge_count sge count
1747 megasas_make_sgl_fusion(struct megasas_instance
*instance
,
1748 struct scsi_cmnd
*scp
,
1749 struct MPI25_IEEE_SGE_CHAIN64
*sgl_ptr
,
1750 struct megasas_cmd_fusion
*cmd
, int sge_count
)
1752 int i
, sg_processed
;
1753 struct scatterlist
*os_sgl
;
1754 struct fusion_context
*fusion
;
1756 fusion
= instance
->ctrl_context
;
1758 if (fusion
->adapter_type
>= INVADER_SERIES
) {
1759 struct MPI25_IEEE_SGE_CHAIN64
*sgl_ptr_end
= sgl_ptr
;
1760 sgl_ptr_end
+= fusion
->max_sge_in_main_msg
- 1;
1761 sgl_ptr_end
->Flags
= 0;
1764 scsi_for_each_sg(scp
, os_sgl
, sge_count
, i
) {
1765 sgl_ptr
->Length
= cpu_to_le32(sg_dma_len(os_sgl
));
1766 sgl_ptr
->Address
= cpu_to_le64(sg_dma_address(os_sgl
));
1768 if (fusion
->adapter_type
>= INVADER_SERIES
)
1769 if (i
== sge_count
- 1)
1770 sgl_ptr
->Flags
= IEEE_SGE_FLAGS_END_OF_LIST
;
1772 sg_processed
= i
+ 1;
1774 if ((sg_processed
== (fusion
->max_sge_in_main_msg
- 1)) &&
1775 (sge_count
> fusion
->max_sge_in_main_msg
)) {
1777 struct MPI25_IEEE_SGE_CHAIN64
*sg_chain
;
1778 if (fusion
->adapter_type
>= INVADER_SERIES
) {
1779 if ((le16_to_cpu(cmd
->io_request
->IoFlags
) &
1780 MPI25_SAS_DEVICE0_FLAGS_ENABLED_FAST_PATH
) !=
1781 MPI25_SAS_DEVICE0_FLAGS_ENABLED_FAST_PATH
)
1782 cmd
->io_request
->ChainOffset
=
1784 chain_offset_io_request
;
1786 cmd
->io_request
->ChainOffset
= 0;
1788 cmd
->io_request
->ChainOffset
=
1789 fusion
->chain_offset_io_request
;
1792 /* Prepare chain element */
1793 sg_chain
->NextChainOffset
= 0;
1794 if (fusion
->adapter_type
>= INVADER_SERIES
)
1795 sg_chain
->Flags
= IEEE_SGE_FLAGS_CHAIN_ELEMENT
;
1798 (IEEE_SGE_FLAGS_CHAIN_ELEMENT
|
1799 MPI2_IEEE_SGE_FLAGS_IOCPLBNTA_ADDR
);
1800 sg_chain
->Length
= cpu_to_le32((sizeof(union MPI2_SGE_IO_UNION
) * (sge_count
- sg_processed
)));
1801 sg_chain
->Address
= cpu_to_le64(cmd
->sg_frame_phys_addr
);
1804 (struct MPI25_IEEE_SGE_CHAIN64
*)cmd
->sg_frame
;
1805 memset(sgl_ptr
, 0, instance
->max_chain_frame_sz
);
1808 atomic_inc(&instance
->ieee_sgl
);
1812 * megasas_make_sgl - Build Scatter Gather List(SGLs)
1813 * @scp: SCSI command pointer
1814 * @instance: Soft instance of controller
1815 * @cmd: Fusion command pointer
1817 * This function will build sgls based on device type.
1818 * For nvme drives, there is different way of building sgls in nvme native
1819 * format- PRPs(Physical Region Page).
1821 * Returns the number of sg lists actually used, zero if the sg lists
1822 * is NULL, or -ENOMEM if the mapping failed
1825 int megasas_make_sgl(struct megasas_instance
*instance
, struct scsi_cmnd
*scp
,
1826 struct megasas_cmd_fusion
*cmd
)
1829 bool build_prp
= false;
1830 struct MPI25_IEEE_SGE_CHAIN64
*sgl_chain64
;
1832 sge_count
= scsi_dma_map(scp
);
1834 if ((sge_count
> instance
->max_num_sge
) || (sge_count
<= 0))
1837 sgl_chain64
= (struct MPI25_IEEE_SGE_CHAIN64
*)&cmd
->io_request
->SGL
;
1838 if ((le16_to_cpu(cmd
->io_request
->IoFlags
) &
1839 MPI25_SAS_DEVICE0_FLAGS_ENABLED_FAST_PATH
) &&
1840 (cmd
->pd_interface
== NVME_PD
))
1841 build_prp
= megasas_make_prp_nvme(instance
, scp
, sgl_chain64
,
1845 megasas_make_sgl_fusion(instance
, scp
, sgl_chain64
,
1852 * megasas_set_pd_lba - Sets PD LBA
1854 * @cdb_len: cdb length
1855 * @start_blk: Start block of IO
1857 * Used to set the PD LBA in CDB for FP IOs
1860 megasas_set_pd_lba(struct MPI2_RAID_SCSI_IO_REQUEST
*io_request
, u8 cdb_len
,
1861 struct IO_REQUEST_INFO
*io_info
, struct scsi_cmnd
*scp
,
1862 struct MR_DRV_RAID_MAP_ALL
*local_map_ptr
, u32 ref_tag
)
1864 struct MR_LD_RAID
*raid
;
1866 u64 start_blk
= io_info
->pdBlock
;
1867 u8
*cdb
= io_request
->CDB
.CDB32
;
1868 u32 num_blocks
= io_info
->numBlocks
;
1869 u8 opcode
= 0, flagvals
= 0, groupnum
= 0, control
= 0;
1871 /* Check if T10 PI (DIF) is enabled for this LD */
1872 ld
= MR_TargetIdToLdGet(io_info
->ldTgtId
, local_map_ptr
);
1873 raid
= MR_LdRaidGet(ld
, local_map_ptr
);
1874 if (raid
->capability
.ldPiMode
== MR_PROT_INFO_TYPE_CONTROLLER
) {
1875 memset(cdb
, 0, sizeof(io_request
->CDB
.CDB32
));
1876 cdb
[0] = MEGASAS_SCSI_VARIABLE_LENGTH_CMD
;
1877 cdb
[7] = MEGASAS_SCSI_ADDL_CDB_LEN
;
1879 if (scp
->sc_data_direction
== PCI_DMA_FROMDEVICE
)
1880 cdb
[9] = MEGASAS_SCSI_SERVICE_ACTION_READ32
;
1882 cdb
[9] = MEGASAS_SCSI_SERVICE_ACTION_WRITE32
;
1883 cdb
[10] = MEGASAS_RD_WR_PROTECT_CHECK_ALL
;
1886 cdb
[12] = (u8
)((start_blk
>> 56) & 0xff);
1887 cdb
[13] = (u8
)((start_blk
>> 48) & 0xff);
1888 cdb
[14] = (u8
)((start_blk
>> 40) & 0xff);
1889 cdb
[15] = (u8
)((start_blk
>> 32) & 0xff);
1890 cdb
[16] = (u8
)((start_blk
>> 24) & 0xff);
1891 cdb
[17] = (u8
)((start_blk
>> 16) & 0xff);
1892 cdb
[18] = (u8
)((start_blk
>> 8) & 0xff);
1893 cdb
[19] = (u8
)(start_blk
& 0xff);
1895 /* Logical block reference tag */
1896 io_request
->CDB
.EEDP32
.PrimaryReferenceTag
=
1897 cpu_to_be32(ref_tag
);
1898 io_request
->CDB
.EEDP32
.PrimaryApplicationTagMask
= cpu_to_be16(0xffff);
1899 io_request
->IoFlags
= cpu_to_le16(32); /* Specify 32-byte cdb */
1901 /* Transfer length */
1902 cdb
[28] = (u8
)((num_blocks
>> 24) & 0xff);
1903 cdb
[29] = (u8
)((num_blocks
>> 16) & 0xff);
1904 cdb
[30] = (u8
)((num_blocks
>> 8) & 0xff);
1905 cdb
[31] = (u8
)(num_blocks
& 0xff);
1907 /* set SCSI IO EEDPFlags */
1908 if (scp
->sc_data_direction
== PCI_DMA_FROMDEVICE
) {
1909 io_request
->EEDPFlags
= cpu_to_le16(
1910 MPI2_SCSIIO_EEDPFLAGS_INC_PRI_REFTAG
|
1911 MPI2_SCSIIO_EEDPFLAGS_CHECK_REFTAG
|
1912 MPI2_SCSIIO_EEDPFLAGS_CHECK_REMOVE_OP
|
1913 MPI2_SCSIIO_EEDPFLAGS_CHECK_APPTAG
|
1914 MPI25_SCSIIO_EEDPFLAGS_DO_NOT_DISABLE_MODE
|
1915 MPI2_SCSIIO_EEDPFLAGS_CHECK_GUARD
);
1917 io_request
->EEDPFlags
= cpu_to_le16(
1918 MPI2_SCSIIO_EEDPFLAGS_INC_PRI_REFTAG
|
1919 MPI2_SCSIIO_EEDPFLAGS_INSERT_OP
);
1921 io_request
->Control
|= cpu_to_le32((0x4 << 26));
1922 io_request
->EEDPBlockSize
= cpu_to_le32(scp
->device
->sector_size
);
1924 /* Some drives don't support 16/12 byte CDB's, convert to 10 */
1925 if (((cdb_len
== 12) || (cdb_len
== 16)) &&
1926 (start_blk
<= 0xffffffff)) {
1927 if (cdb_len
== 16) {
1928 opcode
= cdb
[0] == READ_16
? READ_10
: WRITE_10
;
1933 opcode
= cdb
[0] == READ_12
? READ_10
: WRITE_10
;
1939 memset(cdb
, 0, sizeof(io_request
->CDB
.CDB32
));
1946 /* Transfer length */
1947 cdb
[8] = (u8
)(num_blocks
& 0xff);
1948 cdb
[7] = (u8
)((num_blocks
>> 8) & 0xff);
1950 io_request
->IoFlags
= cpu_to_le16(10); /* Specify 10-byte cdb */
1952 } else if ((cdb_len
< 16) && (start_blk
> 0xffffffff)) {
1953 /* Convert to 16 byte CDB for large LBA's */
1956 opcode
= cdb
[0] == READ_6
? READ_16
: WRITE_16
;
1961 cdb
[0] == READ_10
? READ_16
: WRITE_16
;
1968 cdb
[0] == READ_12
? READ_16
: WRITE_16
;
1975 memset(cdb
, 0, sizeof(io_request
->CDB
.CDB32
));
1982 /* Transfer length */
1983 cdb
[13] = (u8
)(num_blocks
& 0xff);
1984 cdb
[12] = (u8
)((num_blocks
>> 8) & 0xff);
1985 cdb
[11] = (u8
)((num_blocks
>> 16) & 0xff);
1986 cdb
[10] = (u8
)((num_blocks
>> 24) & 0xff);
1988 io_request
->IoFlags
= cpu_to_le16(16); /* Specify 16-byte cdb */
1992 /* Normal case, just load LBA here */
1996 u8 val
= cdb
[1] & 0xE0;
1997 cdb
[3] = (u8
)(start_blk
& 0xff);
1998 cdb
[2] = (u8
)((start_blk
>> 8) & 0xff);
1999 cdb
[1] = val
| ((u8
)(start_blk
>> 16) & 0x1f);
2003 cdb
[5] = (u8
)(start_blk
& 0xff);
2004 cdb
[4] = (u8
)((start_blk
>> 8) & 0xff);
2005 cdb
[3] = (u8
)((start_blk
>> 16) & 0xff);
2006 cdb
[2] = (u8
)((start_blk
>> 24) & 0xff);
2009 cdb
[5] = (u8
)(start_blk
& 0xff);
2010 cdb
[4] = (u8
)((start_blk
>> 8) & 0xff);
2011 cdb
[3] = (u8
)((start_blk
>> 16) & 0xff);
2012 cdb
[2] = (u8
)((start_blk
>> 24) & 0xff);
2015 cdb
[9] = (u8
)(start_blk
& 0xff);
2016 cdb
[8] = (u8
)((start_blk
>> 8) & 0xff);
2017 cdb
[7] = (u8
)((start_blk
>> 16) & 0xff);
2018 cdb
[6] = (u8
)((start_blk
>> 24) & 0xff);
2019 cdb
[5] = (u8
)((start_blk
>> 32) & 0xff);
2020 cdb
[4] = (u8
)((start_blk
>> 40) & 0xff);
2021 cdb
[3] = (u8
)((start_blk
>> 48) & 0xff);
2022 cdb
[2] = (u8
)((start_blk
>> 56) & 0xff);
2029 * megasas_stream_detect - stream detection on read and and write IOs
2030 * @instance: Adapter soft state
2031 * @cmd: Command to be prepared
2032 * @io_info: IO Request info
2036 /** stream detection on read and and write IOs */
2037 static void megasas_stream_detect(struct megasas_instance
*instance
,
2038 struct megasas_cmd_fusion
*cmd
,
2039 struct IO_REQUEST_INFO
*io_info
)
2041 struct fusion_context
*fusion
= instance
->ctrl_context
;
2042 u32 device_id
= io_info
->ldTgtId
;
2043 struct LD_STREAM_DETECT
*current_ld_sd
2044 = fusion
->stream_detect_by_ld
[device_id
];
2045 u32
*track_stream
= ¤t_ld_sd
->mru_bit_map
, stream_num
;
2046 u32 shifted_values
, unshifted_values
;
2047 u32 index_value_mask
, shifted_values_mask
;
2049 bool is_read_ahead
= false;
2050 struct STREAM_DETECT
*current_sd
;
2051 /* find possible stream */
2052 for (i
= 0; i
< MAX_STREAMS_TRACKED
; ++i
) {
2053 stream_num
= (*track_stream
>>
2054 (i
* BITS_PER_INDEX_STREAM
)) &
2056 current_sd
= ¤t_ld_sd
->stream_track
[stream_num
];
2057 /* if we found a stream, update the raid
2058 * context and also update the mruBitMap
2060 /* boundary condition */
2061 if ((current_sd
->next_seq_lba
) &&
2062 (io_info
->ldStartBlock
>= current_sd
->next_seq_lba
) &&
2063 (io_info
->ldStartBlock
<= (current_sd
->next_seq_lba
+ 32)) &&
2064 (current_sd
->is_read
== io_info
->isRead
)) {
2066 if ((io_info
->ldStartBlock
!= current_sd
->next_seq_lba
) &&
2067 ((!io_info
->isRead
) || (!is_read_ahead
)))
2069 * Once the API availible we need to change this.
2070 * At this point we are not allowing any gap
2074 SET_STREAM_DETECTED(cmd
->io_request
->RaidContext
.raid_context_g35
);
2075 current_sd
->next_seq_lba
=
2076 io_info
->ldStartBlock
+ io_info
->numBlocks
;
2078 * update the mruBitMap LRU
2080 shifted_values_mask
=
2081 (1 << i
* BITS_PER_INDEX_STREAM
) - 1;
2082 shifted_values
= ((*track_stream
& shifted_values_mask
)
2083 << BITS_PER_INDEX_STREAM
);
2085 STREAM_MASK
<< i
* BITS_PER_INDEX_STREAM
;
2087 *track_stream
& ~(shifted_values_mask
|
2090 unshifted_values
| shifted_values
| stream_num
;
2095 * if we did not find any stream, create a new one
2096 * from the least recently used
2098 stream_num
= (*track_stream
>>
2099 ((MAX_STREAMS_TRACKED
- 1) * BITS_PER_INDEX_STREAM
)) &
2101 current_sd
= ¤t_ld_sd
->stream_track
[stream_num
];
2102 current_sd
->is_read
= io_info
->isRead
;
2103 current_sd
->next_seq_lba
= io_info
->ldStartBlock
+ io_info
->numBlocks
;
2104 *track_stream
= (((*track_stream
& ZERO_LAST_STREAM
) << 4) | stream_num
);
2109 * megasas_set_raidflag_cpu_affinity - This function sets the cpu
2110 * affinity (cpu of the controller) and raid_flags in the raid context
2113 * @praid_context: IO RAID context
2114 * @raid: LD raid map
2115 * @fp_possible: Is fast path possible?
2116 * @is_read: Is read IO?
2120 megasas_set_raidflag_cpu_affinity(union RAID_CONTEXT_UNION
*praid_context
,
2121 struct MR_LD_RAID
*raid
, bool fp_possible
,
2122 u8 is_read
, u32 scsi_buff_len
)
2124 u8 cpu_sel
= MR_RAID_CTX_CPUSEL_0
;
2125 struct RAID_CONTEXT_G35
*rctx_g35
;
2127 rctx_g35
= &praid_context
->raid_context_g35
;
2130 if ((raid
->cpuAffinity
.pdRead
.cpu0
) &&
2131 (raid
->cpuAffinity
.pdRead
.cpu1
))
2132 cpu_sel
= MR_RAID_CTX_CPUSEL_FCFS
;
2133 else if (raid
->cpuAffinity
.pdRead
.cpu1
)
2134 cpu_sel
= MR_RAID_CTX_CPUSEL_1
;
2136 if ((raid
->cpuAffinity
.pdWrite
.cpu0
) &&
2137 (raid
->cpuAffinity
.pdWrite
.cpu1
))
2138 cpu_sel
= MR_RAID_CTX_CPUSEL_FCFS
;
2139 else if (raid
->cpuAffinity
.pdWrite
.cpu1
)
2140 cpu_sel
= MR_RAID_CTX_CPUSEL_1
;
2141 /* Fast path cache by pass capable R0/R1 VD */
2142 if ((raid
->level
<= 1) &&
2143 (raid
->capability
.fp_cache_bypass_capable
)) {
2144 rctx_g35
->routing_flags
|=
2145 (1 << MR_RAID_CTX_ROUTINGFLAGS_SLD_SHIFT
);
2146 rctx_g35
->raid_flags
=
2147 (MR_RAID_FLAGS_IO_SUB_TYPE_CACHE_BYPASS
2148 << MR_RAID_CTX_RAID_FLAGS_IO_SUB_TYPE_SHIFT
);
2153 if ((raid
->cpuAffinity
.ldRead
.cpu0
) &&
2154 (raid
->cpuAffinity
.ldRead
.cpu1
))
2155 cpu_sel
= MR_RAID_CTX_CPUSEL_FCFS
;
2156 else if (raid
->cpuAffinity
.ldRead
.cpu1
)
2157 cpu_sel
= MR_RAID_CTX_CPUSEL_1
;
2159 if ((raid
->cpuAffinity
.ldWrite
.cpu0
) &&
2160 (raid
->cpuAffinity
.ldWrite
.cpu1
))
2161 cpu_sel
= MR_RAID_CTX_CPUSEL_FCFS
;
2162 else if (raid
->cpuAffinity
.ldWrite
.cpu1
)
2163 cpu_sel
= MR_RAID_CTX_CPUSEL_1
;
2165 if (is_stream_detected(rctx_g35
) &&
2166 ((raid
->level
== 5) || (raid
->level
== 6)) &&
2167 (raid
->writeMode
== MR_RL_WRITE_THROUGH_MODE
) &&
2168 (cpu_sel
== MR_RAID_CTX_CPUSEL_FCFS
))
2169 cpu_sel
= MR_RAID_CTX_CPUSEL_0
;
2173 rctx_g35
->routing_flags
|=
2174 (cpu_sel
<< MR_RAID_CTX_ROUTINGFLAGS_CPUSEL_SHIFT
);
2176 /* Always give priority to MR_RAID_FLAGS_IO_SUB_TYPE_LDIO_BW_LIMIT
2177 * vs MR_RAID_FLAGS_IO_SUB_TYPE_CACHE_BYPASS.
2178 * IO Subtype is not bitmap.
2180 if ((raid
->level
== 1) && (!is_read
)) {
2181 if (scsi_buff_len
> MR_LARGE_IO_MIN_SIZE
)
2182 praid_context
->raid_context_g35
.raid_flags
=
2183 (MR_RAID_FLAGS_IO_SUB_TYPE_LDIO_BW_LIMIT
2184 << MR_RAID_CTX_RAID_FLAGS_IO_SUB_TYPE_SHIFT
);
2189 * megasas_build_ldio_fusion - Prepares IOs to devices
2190 * @instance: Adapter soft state
2191 * @scp: SCSI command
2192 * @cmd: Command to be prepared
2194 * Prepares the io_request and chain elements (sg_frame) for IO
2195 * The IO can be for PD (Fast Path) or LD
2198 megasas_build_ldio_fusion(struct megasas_instance
*instance
,
2199 struct scsi_cmnd
*scp
,
2200 struct megasas_cmd_fusion
*cmd
)
2204 u32 start_lba_lo
, start_lba_hi
, device_id
, datalength
= 0;
2206 struct MPI2_RAID_SCSI_IO_REQUEST
*io_request
;
2207 union MEGASAS_REQUEST_DESCRIPTOR_UNION
*req_desc
;
2208 struct IO_REQUEST_INFO io_info
;
2209 struct fusion_context
*fusion
;
2210 struct MR_DRV_RAID_MAP_ALL
*local_map_ptr
;
2212 unsigned long spinlock_flags
;
2213 union RAID_CONTEXT_UNION
*praid_context
;
2214 struct MR_LD_RAID
*raid
= NULL
;
2215 struct MR_PRIV_DEVICE
*mrdev_priv
;
2217 device_id
= MEGASAS_DEV_INDEX(scp
);
2219 fusion
= instance
->ctrl_context
;
2221 io_request
= cmd
->io_request
;
2222 io_request
->RaidContext
.raid_context
.virtual_disk_tgt_id
=
2223 cpu_to_le16(device_id
);
2224 io_request
->RaidContext
.raid_context
.status
= 0;
2225 io_request
->RaidContext
.raid_context
.ex_status
= 0;
2227 req_desc
= (union MEGASAS_REQUEST_DESCRIPTOR_UNION
*)cmd
->request_desc
;
2231 fp_possible
= false;
2234 * 6-byte READ(0x08) or WRITE(0x0A) cdb
2236 if (scp
->cmd_len
== 6) {
2237 datalength
= (u32
) scp
->cmnd
[4];
2238 start_lba_lo
= ((u32
) scp
->cmnd
[1] << 16) |
2239 ((u32
) scp
->cmnd
[2] << 8) | (u32
) scp
->cmnd
[3];
2241 start_lba_lo
&= 0x1FFFFF;
2245 * 10-byte READ(0x28) or WRITE(0x2A) cdb
2247 else if (scp
->cmd_len
== 10) {
2248 datalength
= (u32
) scp
->cmnd
[8] |
2249 ((u32
) scp
->cmnd
[7] << 8);
2250 start_lba_lo
= ((u32
) scp
->cmnd
[2] << 24) |
2251 ((u32
) scp
->cmnd
[3] << 16) |
2252 ((u32
) scp
->cmnd
[4] << 8) | (u32
) scp
->cmnd
[5];
2256 * 12-byte READ(0xA8) or WRITE(0xAA) cdb
2258 else if (scp
->cmd_len
== 12) {
2259 datalength
= ((u32
) scp
->cmnd
[6] << 24) |
2260 ((u32
) scp
->cmnd
[7] << 16) |
2261 ((u32
) scp
->cmnd
[8] << 8) | (u32
) scp
->cmnd
[9];
2262 start_lba_lo
= ((u32
) scp
->cmnd
[2] << 24) |
2263 ((u32
) scp
->cmnd
[3] << 16) |
2264 ((u32
) scp
->cmnd
[4] << 8) | (u32
) scp
->cmnd
[5];
2268 * 16-byte READ(0x88) or WRITE(0x8A) cdb
2270 else if (scp
->cmd_len
== 16) {
2271 datalength
= ((u32
) scp
->cmnd
[10] << 24) |
2272 ((u32
) scp
->cmnd
[11] << 16) |
2273 ((u32
) scp
->cmnd
[12] << 8) | (u32
) scp
->cmnd
[13];
2274 start_lba_lo
= ((u32
) scp
->cmnd
[6] << 24) |
2275 ((u32
) scp
->cmnd
[7] << 16) |
2276 ((u32
) scp
->cmnd
[8] << 8) | (u32
) scp
->cmnd
[9];
2278 start_lba_hi
= ((u32
) scp
->cmnd
[2] << 24) |
2279 ((u32
) scp
->cmnd
[3] << 16) |
2280 ((u32
) scp
->cmnd
[4] << 8) | (u32
) scp
->cmnd
[5];
2283 memset(&io_info
, 0, sizeof(struct IO_REQUEST_INFO
));
2284 io_info
.ldStartBlock
= ((u64
)start_lba_hi
<< 32) | start_lba_lo
;
2285 io_info
.numBlocks
= datalength
;
2286 io_info
.ldTgtId
= device_id
;
2287 io_info
.r1_alt_dev_handle
= MR_DEVHANDLE_INVALID
;
2288 scsi_buff_len
= scsi_bufflen(scp
);
2289 io_request
->DataLength
= cpu_to_le32(scsi_buff_len
);
2291 if (scp
->sc_data_direction
== PCI_DMA_FROMDEVICE
)
2294 local_map_ptr
= fusion
->ld_drv_map
[(instance
->map_id
& 1)];
2295 ld
= MR_TargetIdToLdGet(device_id
, local_map_ptr
);
2297 if (ld
< instance
->fw_supported_vd_count
)
2298 raid
= MR_LdRaidGet(ld
, local_map_ptr
);
2300 if (!raid
|| (!fusion
->fast_path_io
)) {
2301 io_request
->RaidContext
.raid_context
.reg_lock_flags
= 0;
2302 fp_possible
= false;
2304 if (MR_BuildRaidContext(instance
, &io_info
,
2305 &io_request
->RaidContext
.raid_context
,
2306 local_map_ptr
, &raidLUN
))
2307 fp_possible
= (io_info
.fpOkForIo
> 0) ? true : false;
2310 /* Use raw_smp_processor_id() for now until cmd->request->cpu is CPU
2311 id by default, not CPU group id, otherwise all MSI-X queues won't
2313 cmd
->request_desc
->SCSIIO
.MSIxIndex
= instance
->msix_vectors
?
2314 raw_smp_processor_id() % instance
->msix_vectors
: 0;
2316 praid_context
= &io_request
->RaidContext
;
2318 if (instance
->is_ventura
) {
2319 spin_lock_irqsave(&instance
->stream_lock
, spinlock_flags
);
2320 megasas_stream_detect(instance
, cmd
, &io_info
);
2321 spin_unlock_irqrestore(&instance
->stream_lock
, spinlock_flags
);
2322 /* In ventura if stream detected for a read and it is read ahead
2323 * capable make this IO as LDIO
2325 if (is_stream_detected(&io_request
->RaidContext
.raid_context_g35
) &&
2326 io_info
.isRead
&& io_info
.ra_capable
)
2327 fp_possible
= false;
2329 /* FP for Optimal raid level 1.
2330 * All large RAID-1 writes (> 32 KiB, both WT and WB modes)
2331 * are built by the driver as LD I/Os.
2332 * All small RAID-1 WT writes (<= 32 KiB) are built as FP I/Os
2333 * (there is never a reason to process these as buffered writes)
2334 * All small RAID-1 WB writes (<= 32 KiB) are built as FP I/Os
2335 * with the SLD bit asserted.
2337 if (io_info
.r1_alt_dev_handle
!= MR_DEVHANDLE_INVALID
) {
2338 mrdev_priv
= scp
->device
->hostdata
;
2340 if (atomic_inc_return(&instance
->fw_outstanding
) >
2341 (instance
->host
->can_queue
)) {
2342 fp_possible
= false;
2343 atomic_dec(&instance
->fw_outstanding
);
2344 } else if ((scsi_buff_len
> MR_LARGE_IO_MIN_SIZE
) ||
2345 (atomic_dec_if_positive(&mrdev_priv
->r1_ldio_hint
) > 0)) {
2346 fp_possible
= false;
2347 atomic_dec(&instance
->fw_outstanding
);
2348 if (scsi_buff_len
> MR_LARGE_IO_MIN_SIZE
)
2349 atomic_set(&mrdev_priv
->r1_ldio_hint
,
2350 instance
->r1_ldio_hint_default
);
2354 /* If raid is NULL, set CPU affinity to default CPU0 */
2356 megasas_set_raidflag_cpu_affinity(praid_context
,
2357 raid
, fp_possible
, io_info
.isRead
,
2360 praid_context
->raid_context_g35
.routing_flags
|=
2361 (MR_RAID_CTX_CPUSEL_0
<< MR_RAID_CTX_ROUTINGFLAGS_CPUSEL_SHIFT
);
2365 megasas_set_pd_lba(io_request
, scp
->cmd_len
, &io_info
, scp
,
2366 local_map_ptr
, start_lba_lo
);
2367 io_request
->Function
= MPI2_FUNCTION_SCSI_IO_REQUEST
;
2368 cmd
->request_desc
->SCSIIO
.RequestFlags
=
2369 (MPI2_REQ_DESCRIPT_FLAGS_FP_IO
2370 << MEGASAS_REQ_DESCRIPT_FLAGS_TYPE_SHIFT
);
2371 if (fusion
->adapter_type
== INVADER_SERIES
) {
2372 if (io_request
->RaidContext
.raid_context
.reg_lock_flags
==
2374 cmd
->request_desc
->SCSIIO
.RequestFlags
=
2375 (MEGASAS_REQ_DESCRIPT_FLAGS_NO_LOCK
<<
2376 MEGASAS_REQ_DESCRIPT_FLAGS_TYPE_SHIFT
);
2377 io_request
->RaidContext
.raid_context
.type
2379 io_request
->RaidContext
.raid_context
.nseg
= 0x1;
2380 io_request
->IoFlags
|= cpu_to_le16(MPI25_SAS_DEVICE0_FLAGS_ENABLED_FAST_PATH
);
2381 io_request
->RaidContext
.raid_context
.reg_lock_flags
|=
2382 (MR_RL_FLAGS_GRANT_DESTINATION_CUDA
|
2383 MR_RL_FLAGS_SEQ_NUM_ENABLE
);
2384 } else if (instance
->is_ventura
) {
2385 io_request
->RaidContext
.raid_context_g35
.nseg_type
|=
2386 (1 << RAID_CONTEXT_NSEG_SHIFT
);
2387 io_request
->RaidContext
.raid_context_g35
.nseg_type
|=
2388 (MPI2_TYPE_CUDA
<< RAID_CONTEXT_TYPE_SHIFT
);
2389 io_request
->RaidContext
.raid_context_g35
.routing_flags
|=
2390 (1 << MR_RAID_CTX_ROUTINGFLAGS_SQN_SHIFT
);
2391 io_request
->IoFlags
|=
2392 cpu_to_le16(MPI25_SAS_DEVICE0_FLAGS_ENABLED_FAST_PATH
);
2394 if (fusion
->load_balance_info
&&
2395 (fusion
->load_balance_info
[device_id
].loadBalanceFlag
) &&
2398 get_updated_dev_handle(instance
,
2399 &fusion
->load_balance_info
[device_id
],
2400 &io_info
, local_map_ptr
);
2401 scp
->SCp
.Status
|= MEGASAS_LOAD_BALANCE_FLAG
;
2402 cmd
->pd_r1_lb
= io_info
.pd_after_lb
;
2403 if (instance
->is_ventura
)
2404 io_request
->RaidContext
.raid_context_g35
.span_arm
2407 io_request
->RaidContext
.raid_context
.span_arm
2411 scp
->SCp
.Status
&= ~MEGASAS_LOAD_BALANCE_FLAG
;
2413 if (instance
->is_ventura
)
2414 cmd
->r1_alt_dev_handle
= io_info
.r1_alt_dev_handle
;
2416 cmd
->r1_alt_dev_handle
= MR_DEVHANDLE_INVALID
;
2418 if ((raidLUN
[0] == 1) &&
2419 (local_map_ptr
->raidMap
.devHndlInfo
[io_info
.pd_after_lb
].validHandles
> 1)) {
2420 instance
->dev_handle
= !(instance
->dev_handle
);
2422 local_map_ptr
->raidMap
.devHndlInfo
[io_info
.pd_after_lb
].devHandle
[instance
->dev_handle
];
2425 cmd
->request_desc
->SCSIIO
.DevHandle
= io_info
.devHandle
;
2426 io_request
->DevHandle
= io_info
.devHandle
;
2427 cmd
->pd_interface
= io_info
.pd_interface
;
2428 /* populate the LUN field */
2429 memcpy(io_request
->LUN
, raidLUN
, 8);
2431 io_request
->RaidContext
.raid_context
.timeout_value
=
2432 cpu_to_le16(local_map_ptr
->raidMap
.fpPdIoTimeoutSec
);
2433 cmd
->request_desc
->SCSIIO
.RequestFlags
=
2434 (MEGASAS_REQ_DESCRIPT_FLAGS_LD_IO
2435 << MEGASAS_REQ_DESCRIPT_FLAGS_TYPE_SHIFT
);
2436 if (fusion
->adapter_type
== INVADER_SERIES
) {
2437 if (io_info
.do_fp_rlbypass
||
2438 (io_request
->RaidContext
.raid_context
.reg_lock_flags
2439 == REGION_TYPE_UNUSED
))
2440 cmd
->request_desc
->SCSIIO
.RequestFlags
=
2441 (MEGASAS_REQ_DESCRIPT_FLAGS_NO_LOCK
<<
2442 MEGASAS_REQ_DESCRIPT_FLAGS_TYPE_SHIFT
);
2443 io_request
->RaidContext
.raid_context
.type
2445 io_request
->RaidContext
.raid_context
.reg_lock_flags
|=
2446 (MR_RL_FLAGS_GRANT_DESTINATION_CPU0
|
2447 MR_RL_FLAGS_SEQ_NUM_ENABLE
);
2448 io_request
->RaidContext
.raid_context
.nseg
= 0x1;
2449 } else if (instance
->is_ventura
) {
2450 io_request
->RaidContext
.raid_context_g35
.routing_flags
|=
2451 (1 << MR_RAID_CTX_ROUTINGFLAGS_SQN_SHIFT
);
2452 io_request
->RaidContext
.raid_context_g35
.nseg_type
|=
2453 (1 << RAID_CONTEXT_NSEG_SHIFT
);
2454 io_request
->RaidContext
.raid_context_g35
.nseg_type
|=
2455 (MPI2_TYPE_CUDA
<< RAID_CONTEXT_TYPE_SHIFT
);
2457 io_request
->Function
= MEGASAS_MPI2_FUNCTION_LD_IO_REQUEST
;
2458 io_request
->DevHandle
= cpu_to_le16(device_id
);
2464 * megasas_build_ld_nonrw_fusion - prepares non rw ios for virtual disk
2465 * @instance: Adapter soft state
2466 * @scp: SCSI command
2467 * @cmd: Command to be prepared
2469 * Prepares the io_request frame for non-rw io cmds for vd.
2471 static void megasas_build_ld_nonrw_fusion(struct megasas_instance
*instance
,
2472 struct scsi_cmnd
*scmd
, struct megasas_cmd_fusion
*cmd
)
2475 struct MPI2_RAID_SCSI_IO_REQUEST
*io_request
;
2477 struct MR_DRV_RAID_MAP_ALL
*local_map_ptr
;
2478 struct fusion_context
*fusion
= instance
->ctrl_context
;
2482 struct MR_LD_RAID
*raid
;
2483 struct RAID_CONTEXT
*pRAID_Context
;
2486 io_request
= cmd
->io_request
;
2487 device_id
= MEGASAS_DEV_INDEX(scmd
);
2488 local_map_ptr
= fusion
->ld_drv_map
[(instance
->map_id
& 1)];
2489 io_request
->DataLength
= cpu_to_le32(scsi_bufflen(scmd
));
2490 /* get RAID_Context pointer */
2491 pRAID_Context
= &io_request
->RaidContext
.raid_context
;
2492 /* Check with FW team */
2493 pRAID_Context
->virtual_disk_tgt_id
= cpu_to_le16(device_id
);
2494 pRAID_Context
->reg_lock_row_lba
= 0;
2495 pRAID_Context
->reg_lock_length
= 0;
2497 if (fusion
->fast_path_io
&& (
2498 device_id
< instance
->fw_supported_vd_count
)) {
2500 ld
= MR_TargetIdToLdGet(device_id
, local_map_ptr
);
2501 if (ld
>= instance
->fw_supported_vd_count
)
2504 raid
= MR_LdRaidGet(ld
, local_map_ptr
);
2505 if (!(raid
->capability
.fpNonRWCapable
))
2512 io_request
->Function
= MEGASAS_MPI2_FUNCTION_LD_IO_REQUEST
;
2513 io_request
->DevHandle
= cpu_to_le16(device_id
);
2514 io_request
->LUN
[1] = scmd
->device
->lun
;
2515 pRAID_Context
->timeout_value
=
2516 cpu_to_le16 (scmd
->request
->timeout
/ HZ
);
2517 cmd
->request_desc
->SCSIIO
.RequestFlags
=
2518 (MPI2_REQ_DESCRIPT_FLAGS_SCSI_IO
<<
2519 MEGASAS_REQ_DESCRIPT_FLAGS_TYPE_SHIFT
);
2522 /* set RAID context values */
2523 pRAID_Context
->config_seq_num
= raid
->seqNum
;
2524 if (!instance
->is_ventura
)
2525 pRAID_Context
->reg_lock_flags
= REGION_TYPE_SHARED_READ
;
2526 pRAID_Context
->timeout_value
=
2527 cpu_to_le16(raid
->fpIoTimeoutForLd
);
2529 /* get the DevHandle for the PD (since this is
2530 fpNonRWCapable, this is a single disk RAID0) */
2532 arRef
= MR_LdSpanArrayGet(ld
, span
, local_map_ptr
);
2533 pd
= MR_ArPdGet(arRef
, physArm
, local_map_ptr
);
2534 devHandle
= MR_PdDevHandleGet(pd
, local_map_ptr
);
2536 /* build request descriptor */
2537 cmd
->request_desc
->SCSIIO
.RequestFlags
=
2538 (MPI2_REQ_DESCRIPT_FLAGS_FP_IO
<<
2539 MEGASAS_REQ_DESCRIPT_FLAGS_TYPE_SHIFT
);
2540 cmd
->request_desc
->SCSIIO
.DevHandle
= devHandle
;
2542 /* populate the LUN field */
2543 memcpy(io_request
->LUN
, raid
->LUN
, 8);
2545 /* build the raidScsiIO structure */
2546 io_request
->Function
= MPI2_FUNCTION_SCSI_IO_REQUEST
;
2547 io_request
->DevHandle
= devHandle
;
2552 * megasas_build_syspd_fusion - prepares rw/non-rw ios for syspd
2553 * @instance: Adapter soft state
2554 * @scp: SCSI command
2555 * @cmd: Command to be prepared
2556 * @fp_possible: parameter to detect fast path or firmware path io.
2558 * Prepares the io_request frame for rw/non-rw io cmds for syspds
2561 megasas_build_syspd_fusion(struct megasas_instance
*instance
,
2562 struct scsi_cmnd
*scmd
, struct megasas_cmd_fusion
*cmd
,
2566 struct MPI2_RAID_SCSI_IO_REQUEST
*io_request
;
2568 u16 os_timeout_value
;
2570 struct MR_DRV_RAID_MAP_ALL
*local_map_ptr
;
2571 struct RAID_CONTEXT
*pRAID_Context
;
2572 struct MR_PD_CFG_SEQ_NUM_SYNC
*pd_sync
;
2573 struct MR_PRIV_DEVICE
*mr_device_priv_data
;
2574 struct fusion_context
*fusion
= instance
->ctrl_context
;
2575 pd_sync
= (void *)fusion
->pd_seq_sync
[(instance
->pd_seq_map_id
- 1) & 1];
2577 device_id
= MEGASAS_DEV_INDEX(scmd
);
2578 pd_index
= MEGASAS_PD_INDEX(scmd
);
2579 os_timeout_value
= scmd
->request
->timeout
/ HZ
;
2580 mr_device_priv_data
= scmd
->device
->hostdata
;
2581 cmd
->pd_interface
= mr_device_priv_data
->interface_type
;
2583 io_request
= cmd
->io_request
;
2584 /* get RAID_Context pointer */
2585 pRAID_Context
= &io_request
->RaidContext
.raid_context
;
2586 pRAID_Context
->reg_lock_flags
= 0;
2587 pRAID_Context
->reg_lock_row_lba
= 0;
2588 pRAID_Context
->reg_lock_length
= 0;
2589 io_request
->DataLength
= cpu_to_le32(scsi_bufflen(scmd
));
2590 io_request
->LUN
[1] = scmd
->device
->lun
;
2591 pRAID_Context
->raid_flags
= MR_RAID_FLAGS_IO_SUB_TYPE_SYSTEM_PD
2592 << MR_RAID_CTX_RAID_FLAGS_IO_SUB_TYPE_SHIFT
;
2594 /* If FW supports PD sequence number */
2595 if (instance
->use_seqnum_jbod_fp
&&
2596 instance
->pd_list
[pd_index
].driveType
== TYPE_DISK
) {
2597 /* TgtId must be incremented by 255 as jbod seq number is index
2600 /* More than 256 PD/JBOD support for Ventura */
2601 if (instance
->support_morethan256jbod
)
2602 pRAID_Context
->virtual_disk_tgt_id
=
2603 pd_sync
->seq
[pd_index
].pd_target_id
;
2605 pRAID_Context
->virtual_disk_tgt_id
=
2606 cpu_to_le16(device_id
+ (MAX_PHYSICAL_DEVICES
- 1));
2607 pRAID_Context
->config_seq_num
= pd_sync
->seq
[pd_index
].seqNum
;
2608 io_request
->DevHandle
= pd_sync
->seq
[pd_index
].devHandle
;
2609 if (instance
->is_ventura
) {
2610 io_request
->RaidContext
.raid_context_g35
.routing_flags
|=
2611 (1 << MR_RAID_CTX_ROUTINGFLAGS_SQN_SHIFT
);
2612 io_request
->RaidContext
.raid_context_g35
.nseg_type
|=
2613 (1 << RAID_CONTEXT_NSEG_SHIFT
);
2614 io_request
->RaidContext
.raid_context_g35
.nseg_type
|=
2615 (MPI2_TYPE_CUDA
<< RAID_CONTEXT_TYPE_SHIFT
);
2617 pRAID_Context
->type
= MPI2_TYPE_CUDA
;
2618 pRAID_Context
->nseg
= 0x1;
2619 pRAID_Context
->reg_lock_flags
|=
2620 (MR_RL_FLAGS_SEQ_NUM_ENABLE
|MR_RL_FLAGS_GRANT_DESTINATION_CUDA
);
2622 } else if (fusion
->fast_path_io
) {
2623 pRAID_Context
->virtual_disk_tgt_id
= cpu_to_le16(device_id
);
2624 pRAID_Context
->config_seq_num
= 0;
2625 local_map_ptr
= fusion
->ld_drv_map
[(instance
->map_id
& 1)];
2626 io_request
->DevHandle
=
2627 local_map_ptr
->raidMap
.devHndlInfo
[device_id
].curDevHdl
;
2629 /* Want to send all IO via FW path */
2630 pRAID_Context
->virtual_disk_tgt_id
= cpu_to_le16(device_id
);
2631 pRAID_Context
->config_seq_num
= 0;
2632 io_request
->DevHandle
= cpu_to_le16(0xFFFF);
2635 cmd
->request_desc
->SCSIIO
.DevHandle
= io_request
->DevHandle
;
2636 cmd
->request_desc
->SCSIIO
.MSIxIndex
=
2637 instance
->msix_vectors
?
2638 (raw_smp_processor_id() % instance
->msix_vectors
) : 0;
2642 /* system pd firmware path */
2643 io_request
->Function
= MEGASAS_MPI2_FUNCTION_LD_IO_REQUEST
;
2644 cmd
->request_desc
->SCSIIO
.RequestFlags
=
2645 (MPI2_REQ_DESCRIPT_FLAGS_SCSI_IO
<<
2646 MEGASAS_REQ_DESCRIPT_FLAGS_TYPE_SHIFT
);
2647 pRAID_Context
->timeout_value
= cpu_to_le16(os_timeout_value
);
2648 pRAID_Context
->virtual_disk_tgt_id
= cpu_to_le16(device_id
);
2650 /* system pd Fast Path */
2651 io_request
->Function
= MPI2_FUNCTION_SCSI_IO_REQUEST
;
2652 timeout_limit
= (scmd
->device
->type
== TYPE_DISK
) ?
2654 pRAID_Context
->timeout_value
=
2655 cpu_to_le16((os_timeout_value
> timeout_limit
) ?
2656 timeout_limit
: os_timeout_value
);
2657 if (fusion
->adapter_type
>= INVADER_SERIES
)
2658 io_request
->IoFlags
|=
2659 cpu_to_le16(MPI25_SAS_DEVICE0_FLAGS_ENABLED_FAST_PATH
);
2661 cmd
->request_desc
->SCSIIO
.RequestFlags
=
2662 (MPI2_REQ_DESCRIPT_FLAGS_FP_IO
<<
2663 MEGASAS_REQ_DESCRIPT_FLAGS_TYPE_SHIFT
);
2668 * megasas_build_io_fusion - Prepares IOs to devices
2669 * @instance: Adapter soft state
2670 * @scp: SCSI command
2671 * @cmd: Command to be prepared
2673 * Invokes helper functions to prepare request frames
2674 * and sets flags appropriate for IO/Non-IO cmd
2677 megasas_build_io_fusion(struct megasas_instance
*instance
,
2678 struct scsi_cmnd
*scp
,
2679 struct megasas_cmd_fusion
*cmd
)
2683 struct MPI2_RAID_SCSI_IO_REQUEST
*io_request
= cmd
->io_request
;
2684 struct MR_PRIV_DEVICE
*mr_device_priv_data
;
2685 mr_device_priv_data
= scp
->device
->hostdata
;
2687 /* Zero out some fields so they don't get reused */
2688 memset(io_request
->LUN
, 0x0, 8);
2689 io_request
->CDB
.EEDP32
.PrimaryReferenceTag
= 0;
2690 io_request
->CDB
.EEDP32
.PrimaryApplicationTagMask
= 0;
2691 io_request
->EEDPFlags
= 0;
2692 io_request
->Control
= 0;
2693 io_request
->EEDPBlockSize
= 0;
2694 io_request
->ChainOffset
= 0;
2695 io_request
->RaidContext
.raid_context
.raid_flags
= 0;
2696 io_request
->RaidContext
.raid_context
.type
= 0;
2697 io_request
->RaidContext
.raid_context
.nseg
= 0;
2699 memcpy(io_request
->CDB
.CDB32
, scp
->cmnd
, scp
->cmd_len
);
2701 * Just the CDB length,rest of the Flags are zero
2702 * This will be modified for FP in build_ldio_fusion
2704 io_request
->IoFlags
= cpu_to_le16(scp
->cmd_len
);
2706 switch (cmd_type
= megasas_cmd_type(scp
)) {
2707 case READ_WRITE_LDIO
:
2708 megasas_build_ldio_fusion(instance
, scp
, cmd
);
2710 case NON_READ_WRITE_LDIO
:
2711 megasas_build_ld_nonrw_fusion(instance
, scp
, cmd
);
2713 case READ_WRITE_SYSPDIO
:
2714 megasas_build_syspd_fusion(instance
, scp
, cmd
, true);
2716 case NON_READ_WRITE_SYSPDIO
:
2717 if (instance
->secure_jbod_support
||
2718 mr_device_priv_data
->is_tm_capable
)
2719 megasas_build_syspd_fusion(instance
, scp
, cmd
, false);
2721 megasas_build_syspd_fusion(instance
, scp
, cmd
, true);
2731 sge_count
= megasas_make_sgl(instance
, scp
, cmd
);
2733 if (sge_count
> instance
->max_num_sge
|| (sge_count
< 0)) {
2734 dev_err(&instance
->pdev
->dev
,
2735 "%s %d sge_count (%d) is out of range. Range is: 0-%d\n",
2736 __func__
, __LINE__
, sge_count
, instance
->max_num_sge
);
2740 if (instance
->is_ventura
) {
2741 set_num_sge(&io_request
->RaidContext
.raid_context_g35
, sge_count
);
2742 cpu_to_le16s(&io_request
->RaidContext
.raid_context_g35
.routing_flags
);
2743 cpu_to_le16s(&io_request
->RaidContext
.raid_context_g35
.nseg_type
);
2745 /* numSGE store lower 8 bit of sge_count.
2746 * numSGEExt store higher 8 bit of sge_count
2748 io_request
->RaidContext
.raid_context
.num_sge
= sge_count
;
2749 io_request
->RaidContext
.raid_context
.num_sge_ext
=
2750 (u8
)(sge_count
>> 8);
2753 io_request
->SGLFlags
= cpu_to_le16(MPI2_SGE_FLAGS_64_BIT_ADDRESSING
);
2755 if (scp
->sc_data_direction
== PCI_DMA_TODEVICE
)
2756 io_request
->Control
|= cpu_to_le32(MPI2_SCSIIO_CONTROL_WRITE
);
2757 else if (scp
->sc_data_direction
== PCI_DMA_FROMDEVICE
)
2758 io_request
->Control
|= cpu_to_le32(MPI2_SCSIIO_CONTROL_READ
);
2760 io_request
->SGLOffset0
=
2761 offsetof(struct MPI2_RAID_SCSI_IO_REQUEST
, SGL
) / 4;
2763 io_request
->SenseBufferLowAddress
= cpu_to_le32(cmd
->sense_phys_addr
);
2764 io_request
->SenseBufferLength
= SCSI_SENSE_BUFFERSIZE
;
2767 scp
->SCp
.ptr
= (char *)cmd
;
2772 static union MEGASAS_REQUEST_DESCRIPTOR_UNION
*
2773 megasas_get_request_descriptor(struct megasas_instance
*instance
, u16 index
)
2776 struct fusion_context
*fusion
;
2778 fusion
= instance
->ctrl_context
;
2779 p
= fusion
->req_frames_desc
+
2780 sizeof(union MEGASAS_REQUEST_DESCRIPTOR_UNION
) * index
;
2782 return (union MEGASAS_REQUEST_DESCRIPTOR_UNION
*)p
;
2786 /* megasas_prepate_secondRaid1_IO
2787 * It prepares the raid 1 second IO
2789 void megasas_prepare_secondRaid1_IO(struct megasas_instance
*instance
,
2790 struct megasas_cmd_fusion
*cmd
,
2791 struct megasas_cmd_fusion
*r1_cmd
)
2793 union MEGASAS_REQUEST_DESCRIPTOR_UNION
*req_desc
, *req_desc2
= NULL
;
2794 struct fusion_context
*fusion
;
2795 fusion
= instance
->ctrl_context
;
2796 req_desc
= cmd
->request_desc
;
2797 /* copy the io request frame as well as 8 SGEs data for r1 command*/
2798 memcpy(r1_cmd
->io_request
, cmd
->io_request
,
2799 (sizeof(struct MPI2_RAID_SCSI_IO_REQUEST
)));
2800 memcpy(&r1_cmd
->io_request
->SGL
, &cmd
->io_request
->SGL
,
2801 (fusion
->max_sge_in_main_msg
* sizeof(union MPI2_SGE_IO_UNION
)));
2802 /*sense buffer is different for r1 command*/
2803 r1_cmd
->io_request
->SenseBufferLowAddress
=
2804 cpu_to_le32(r1_cmd
->sense_phys_addr
);
2805 r1_cmd
->scmd
= cmd
->scmd
;
2806 req_desc2
= megasas_get_request_descriptor(instance
,
2807 (r1_cmd
->index
- 1));
2808 req_desc2
->Words
= 0;
2809 r1_cmd
->request_desc
= req_desc2
;
2810 req_desc2
->SCSIIO
.SMID
= cpu_to_le16(r1_cmd
->index
);
2811 req_desc2
->SCSIIO
.RequestFlags
= req_desc
->SCSIIO
.RequestFlags
;
2812 r1_cmd
->request_desc
->SCSIIO
.DevHandle
= cmd
->r1_alt_dev_handle
;
2813 r1_cmd
->io_request
->DevHandle
= cmd
->r1_alt_dev_handle
;
2814 r1_cmd
->r1_alt_dev_handle
= cmd
->io_request
->DevHandle
;
2815 cmd
->io_request
->RaidContext
.raid_context_g35
.smid
.peer_smid
=
2816 cpu_to_le16(r1_cmd
->index
);
2817 r1_cmd
->io_request
->RaidContext
.raid_context_g35
.smid
.peer_smid
=
2818 cpu_to_le16(cmd
->index
);
2819 /*MSIxIndex of both commands request descriptors should be same*/
2820 r1_cmd
->request_desc
->SCSIIO
.MSIxIndex
=
2821 cmd
->request_desc
->SCSIIO
.MSIxIndex
;
2822 /*span arm is different for r1 cmd*/
2823 r1_cmd
->io_request
->RaidContext
.raid_context_g35
.span_arm
=
2824 cmd
->io_request
->RaidContext
.raid_context_g35
.span_arm
+ 1;
2828 * megasas_build_and_issue_cmd_fusion -Main routine for building and
2829 * issuing non IOCTL cmd
2830 * @instance: Adapter soft state
2831 * @scmd: pointer to scsi cmd from OS
2834 megasas_build_and_issue_cmd_fusion(struct megasas_instance
*instance
,
2835 struct scsi_cmnd
*scmd
)
2837 struct megasas_cmd_fusion
*cmd
, *r1_cmd
= NULL
;
2838 union MEGASAS_REQUEST_DESCRIPTOR_UNION
*req_desc
;
2840 struct fusion_context
*fusion
;
2842 fusion
= instance
->ctrl_context
;
2844 if ((megasas_cmd_type(scmd
) == READ_WRITE_LDIO
) &&
2845 instance
->ldio_threshold
&&
2846 (atomic_inc_return(&instance
->ldio_outstanding
) >
2847 instance
->ldio_threshold
)) {
2848 atomic_dec(&instance
->ldio_outstanding
);
2849 return SCSI_MLQUEUE_DEVICE_BUSY
;
2852 if (atomic_inc_return(&instance
->fw_outstanding
) >
2853 instance
->host
->can_queue
) {
2854 atomic_dec(&instance
->fw_outstanding
);
2855 return SCSI_MLQUEUE_HOST_BUSY
;
2858 cmd
= megasas_get_cmd_fusion(instance
, scmd
->request
->tag
);
2861 atomic_dec(&instance
->fw_outstanding
);
2862 return SCSI_MLQUEUE_HOST_BUSY
;
2867 req_desc
= megasas_get_request_descriptor(instance
, index
-1);
2869 req_desc
->Words
= 0;
2870 cmd
->request_desc
= req_desc
;
2872 if (megasas_build_io_fusion(instance
, scmd
, cmd
)) {
2873 megasas_return_cmd_fusion(instance
, cmd
);
2874 dev_err(&instance
->pdev
->dev
, "Error building command\n");
2875 cmd
->request_desc
= NULL
;
2876 atomic_dec(&instance
->fw_outstanding
);
2877 return SCSI_MLQUEUE_HOST_BUSY
;
2880 req_desc
= cmd
->request_desc
;
2881 req_desc
->SCSIIO
.SMID
= cpu_to_le16(index
);
2883 if (cmd
->io_request
->ChainOffset
!= 0 &&
2884 cmd
->io_request
->ChainOffset
!= 0xF)
2885 dev_err(&instance
->pdev
->dev
, "The chain offset value is not "
2886 "correct : %x\n", cmd
->io_request
->ChainOffset
);
2888 * if it is raid 1/10 fp write capable.
2889 * try to get second command from pool and construct it.
2890 * From FW, it has confirmed that lba values of two PDs
2891 * corresponds to single R1/10 LD are always same
2894 /* driver side count always should be less than max_fw_cmds
2895 * to get new command
2897 if (cmd
->r1_alt_dev_handle
!= MR_DEVHANDLE_INVALID
) {
2898 r1_cmd
= megasas_get_cmd_fusion(instance
,
2899 (scmd
->request
->tag
+ instance
->max_fw_cmds
));
2900 megasas_prepare_secondRaid1_IO(instance
, cmd
, r1_cmd
);
2905 * Issue the command to the FW
2908 megasas_fire_cmd_fusion(instance
, req_desc
);
2911 megasas_fire_cmd_fusion(instance
, r1_cmd
->request_desc
);
2918 * megasas_complete_r1_command -
2919 * completes R1 FP write commands which has valid peer smid
2920 * @instance: Adapter soft state
2921 * @cmd_fusion: MPT command frame
2925 megasas_complete_r1_command(struct megasas_instance
*instance
,
2926 struct megasas_cmd_fusion
*cmd
)
2928 u8
*sense
, status
, ex_status
;
2931 struct fusion_context
*fusion
;
2932 struct megasas_cmd_fusion
*r1_cmd
= NULL
;
2933 struct scsi_cmnd
*scmd_local
= NULL
;
2934 struct RAID_CONTEXT_G35
*rctx_g35
;
2936 rctx_g35
= &cmd
->io_request
->RaidContext
.raid_context_g35
;
2937 fusion
= instance
->ctrl_context
;
2938 peer_smid
= le16_to_cpu(rctx_g35
->smid
.peer_smid
);
2940 r1_cmd
= fusion
->cmd_list
[peer_smid
- 1];
2941 scmd_local
= cmd
->scmd
;
2942 status
= rctx_g35
->status
;
2943 ex_status
= rctx_g35
->ex_status
;
2944 data_length
= cmd
->io_request
->DataLength
;
2947 cmd
->cmd_completed
= true;
2949 /* Check if peer command is completed or not*/
2950 if (r1_cmd
->cmd_completed
) {
2951 rctx_g35
= &r1_cmd
->io_request
->RaidContext
.raid_context_g35
;
2952 if (rctx_g35
->status
!= MFI_STAT_OK
) {
2953 status
= rctx_g35
->status
;
2954 ex_status
= rctx_g35
->ex_status
;
2955 data_length
= r1_cmd
->io_request
->DataLength
;
2956 sense
= r1_cmd
->sense
;
2959 megasas_return_cmd_fusion(instance
, r1_cmd
);
2960 map_cmd_status(fusion
, scmd_local
, status
, ex_status
,
2961 le32_to_cpu(data_length
), sense
);
2962 if (instance
->ldio_threshold
&&
2963 megasas_cmd_type(scmd_local
) == READ_WRITE_LDIO
)
2964 atomic_dec(&instance
->ldio_outstanding
);
2965 scmd_local
->SCp
.ptr
= NULL
;
2966 megasas_return_cmd_fusion(instance
, cmd
);
2967 scsi_dma_unmap(scmd_local
);
2968 scmd_local
->scsi_done(scmd_local
);
2973 * complete_cmd_fusion - Completes command
2974 * @instance: Adapter soft state
2975 * Completes all commands that is in reply descriptor queue
2978 complete_cmd_fusion(struct megasas_instance
*instance
, u32 MSIxIndex
)
2980 union MPI2_REPLY_DESCRIPTORS_UNION
*desc
;
2981 struct MPI2_SCSI_IO_SUCCESS_REPLY_DESCRIPTOR
*reply_desc
;
2982 struct MPI2_RAID_SCSI_IO_REQUEST
*scsi_io_req
;
2983 struct fusion_context
*fusion
;
2984 struct megasas_cmd
*cmd_mfi
;
2985 struct megasas_cmd_fusion
*cmd_fusion
;
2986 u16 smid
, num_completed
;
2987 u8 reply_descript_type
, *sense
, status
, extStatus
;
2988 u32 device_id
, data_length
;
2989 union desc_value d_val
;
2990 struct LD_LOAD_BALANCE_INFO
*lbinfo
;
2991 int threshold_reply_count
= 0;
2992 struct scsi_cmnd
*scmd_local
= NULL
;
2993 struct MR_TASK_MANAGE_REQUEST
*mr_tm_req
;
2994 struct MPI2_SCSI_TASK_MANAGE_REQUEST
*mpi_tm_req
;
2996 fusion
= instance
->ctrl_context
;
2998 if (atomic_read(&instance
->adprecovery
) == MEGASAS_HW_CRITICAL_ERROR
)
3001 desc
= fusion
->reply_frames_desc
[MSIxIndex
] +
3002 fusion
->last_reply_idx
[MSIxIndex
];
3004 reply_desc
= (struct MPI2_SCSI_IO_SUCCESS_REPLY_DESCRIPTOR
*)desc
;
3006 d_val
.word
= desc
->Words
;
3008 reply_descript_type
= reply_desc
->ReplyFlags
&
3009 MPI2_RPY_DESCRIPT_FLAGS_TYPE_MASK
;
3011 if (reply_descript_type
== MPI2_RPY_DESCRIPT_FLAGS_UNUSED
)
3016 while (d_val
.u
.low
!= cpu_to_le32(UINT_MAX
) &&
3017 d_val
.u
.high
!= cpu_to_le32(UINT_MAX
)) {
3019 smid
= le16_to_cpu(reply_desc
->SMID
);
3020 cmd_fusion
= fusion
->cmd_list
[smid
- 1];
3021 scsi_io_req
= (struct MPI2_RAID_SCSI_IO_REQUEST
*)
3022 cmd_fusion
->io_request
;
3024 scmd_local
= cmd_fusion
->scmd
;
3025 status
= scsi_io_req
->RaidContext
.raid_context
.status
;
3026 extStatus
= scsi_io_req
->RaidContext
.raid_context
.ex_status
;
3027 sense
= cmd_fusion
->sense
;
3028 data_length
= scsi_io_req
->DataLength
;
3030 switch (scsi_io_req
->Function
) {
3031 case MPI2_FUNCTION_SCSI_TASK_MGMT
:
3032 mr_tm_req
= (struct MR_TASK_MANAGE_REQUEST
*)
3033 cmd_fusion
->io_request
;
3034 mpi_tm_req
= (struct MPI2_SCSI_TASK_MANAGE_REQUEST
*)
3035 &mr_tm_req
->TmRequest
;
3036 dev_dbg(&instance
->pdev
->dev
, "TM completion:"
3037 "type: 0x%x TaskMID: 0x%x\n",
3038 mpi_tm_req
->TaskType
, mpi_tm_req
->TaskMID
);
3039 complete(&cmd_fusion
->done
);
3041 case MPI2_FUNCTION_SCSI_IO_REQUEST
: /*Fast Path IO.*/
3042 /* Update load balancing info */
3043 if (fusion
->load_balance_info
&&
3044 (cmd_fusion
->scmd
->SCp
.Status
&
3045 MEGASAS_LOAD_BALANCE_FLAG
)) {
3046 device_id
= MEGASAS_DEV_INDEX(scmd_local
);
3047 lbinfo
= &fusion
->load_balance_info
[device_id
];
3048 atomic_dec(&lbinfo
->scsi_pending_cmds
[cmd_fusion
->pd_r1_lb
]);
3049 cmd_fusion
->scmd
->SCp
.Status
&= ~MEGASAS_LOAD_BALANCE_FLAG
;
3051 //Fall thru and complete IO
3052 case MEGASAS_MPI2_FUNCTION_LD_IO_REQUEST
: /* LD-IO Path */
3053 atomic_dec(&instance
->fw_outstanding
);
3054 if (cmd_fusion
->r1_alt_dev_handle
== MR_DEVHANDLE_INVALID
) {
3055 map_cmd_status(fusion
, scmd_local
, status
,
3056 extStatus
, le32_to_cpu(data_length
),
3058 if (instance
->ldio_threshold
&&
3059 (megasas_cmd_type(scmd_local
) == READ_WRITE_LDIO
))
3060 atomic_dec(&instance
->ldio_outstanding
);
3061 scmd_local
->SCp
.ptr
= NULL
;
3062 megasas_return_cmd_fusion(instance
, cmd_fusion
);
3063 scsi_dma_unmap(scmd_local
);
3064 scmd_local
->scsi_done(scmd_local
);
3065 } else /* Optimal VD - R1 FP command completion. */
3066 megasas_complete_r1_command(instance
, cmd_fusion
);
3068 case MEGASAS_MPI2_FUNCTION_PASSTHRU_IO_REQUEST
: /*MFI command */
3069 cmd_mfi
= instance
->cmd_list
[cmd_fusion
->sync_cmd_idx
];
3070 /* Poll mode. Dummy free.
3071 * In case of Interrupt mode, caller has reverse check.
3073 if (cmd_mfi
->flags
& DRV_DCMD_POLLED_MODE
) {
3074 cmd_mfi
->flags
&= ~DRV_DCMD_POLLED_MODE
;
3075 megasas_return_cmd(instance
, cmd_mfi
);
3077 megasas_complete_cmd(instance
, cmd_mfi
, DID_OK
);
3081 fusion
->last_reply_idx
[MSIxIndex
]++;
3082 if (fusion
->last_reply_idx
[MSIxIndex
] >=
3083 fusion
->reply_q_depth
)
3084 fusion
->last_reply_idx
[MSIxIndex
] = 0;
3086 desc
->Words
= cpu_to_le64(ULLONG_MAX
);
3088 threshold_reply_count
++;
3090 /* Get the next reply descriptor */
3091 if (!fusion
->last_reply_idx
[MSIxIndex
])
3092 desc
= fusion
->reply_frames_desc
[MSIxIndex
];
3097 (struct MPI2_SCSI_IO_SUCCESS_REPLY_DESCRIPTOR
*)desc
;
3099 d_val
.word
= desc
->Words
;
3101 reply_descript_type
= reply_desc
->ReplyFlags
&
3102 MPI2_RPY_DESCRIPT_FLAGS_TYPE_MASK
;
3104 if (reply_descript_type
== MPI2_RPY_DESCRIPT_FLAGS_UNUSED
)
3107 * Write to reply post host index register after completing threshold
3108 * number of reply counts and still there are more replies in reply queue
3109 * pending to be completed
3111 if (threshold_reply_count
>= THRESHOLD_REPLY_COUNT
) {
3112 if (instance
->msix_combined
)
3113 writel(((MSIxIndex
& 0x7) << 24) |
3114 fusion
->last_reply_idx
[MSIxIndex
],
3115 instance
->reply_post_host_index_addr
[MSIxIndex
/8]);
3117 writel((MSIxIndex
<< 24) |
3118 fusion
->last_reply_idx
[MSIxIndex
],
3119 instance
->reply_post_host_index_addr
[0]);
3120 threshold_reply_count
= 0;
3128 if (instance
->msix_combined
)
3129 writel(((MSIxIndex
& 0x7) << 24) |
3130 fusion
->last_reply_idx
[MSIxIndex
],
3131 instance
->reply_post_host_index_addr
[MSIxIndex
/8]);
3133 writel((MSIxIndex
<< 24) |
3134 fusion
->last_reply_idx
[MSIxIndex
],
3135 instance
->reply_post_host_index_addr
[0]);
3136 megasas_check_and_restore_queue_depth(instance
);
3141 * megasas_sync_irqs - Synchronizes all IRQs owned by adapter
3142 * @instance: Adapter soft state
3144 void megasas_sync_irqs(unsigned long instance_addr
)
3147 struct megasas_instance
*instance
=
3148 (struct megasas_instance
*)instance_addr
;
3150 count
= instance
->msix_vectors
> 0 ? instance
->msix_vectors
: 1;
3152 for (i
= 0; i
< count
; i
++)
3153 synchronize_irq(pci_irq_vector(instance
->pdev
, i
));
3157 * megasas_complete_cmd_dpc_fusion - Completes command
3158 * @instance: Adapter soft state
3160 * Tasklet to complete cmds
3163 megasas_complete_cmd_dpc_fusion(unsigned long instance_addr
)
3165 struct megasas_instance
*instance
=
3166 (struct megasas_instance
*)instance_addr
;
3167 unsigned long flags
;
3168 u32 count
, MSIxIndex
;
3170 count
= instance
->msix_vectors
> 0 ? instance
->msix_vectors
: 1;
3172 /* If we have already declared adapter dead, donot complete cmds */
3173 spin_lock_irqsave(&instance
->hba_lock
, flags
);
3174 if (atomic_read(&instance
->adprecovery
) == MEGASAS_HW_CRITICAL_ERROR
) {
3175 spin_unlock_irqrestore(&instance
->hba_lock
, flags
);
3178 spin_unlock_irqrestore(&instance
->hba_lock
, flags
);
3180 for (MSIxIndex
= 0 ; MSIxIndex
< count
; MSIxIndex
++)
3181 complete_cmd_fusion(instance
, MSIxIndex
);
3185 * megasas_isr_fusion - isr entry point
3187 irqreturn_t
megasas_isr_fusion(int irq
, void *devp
)
3189 struct megasas_irq_context
*irq_context
= devp
;
3190 struct megasas_instance
*instance
= irq_context
->instance
;
3191 u32 mfiStatus
, fw_state
, dma_state
;
3193 if (instance
->mask_interrupts
)
3196 if (!instance
->msix_vectors
) {
3197 mfiStatus
= instance
->instancet
->clear_intr(instance
->reg_set
);
3202 /* If we are resetting, bail */
3203 if (test_bit(MEGASAS_FUSION_IN_RESET
, &instance
->reset_flags
)) {
3204 instance
->instancet
->clear_intr(instance
->reg_set
);
3208 if (!complete_cmd_fusion(instance
, irq_context
->MSIxIndex
)) {
3209 instance
->instancet
->clear_intr(instance
->reg_set
);
3210 /* If we didn't complete any commands, check for FW fault */
3211 fw_state
= instance
->instancet
->read_fw_status_reg(
3212 instance
->reg_set
) & MFI_STATE_MASK
;
3213 dma_state
= instance
->instancet
->read_fw_status_reg
3214 (instance
->reg_set
) & MFI_STATE_DMADONE
;
3215 if (instance
->crash_dump_drv_support
&&
3216 instance
->crash_dump_app_support
) {
3217 /* Start collecting crash, if DMA bit is done */
3218 if ((fw_state
== MFI_STATE_FAULT
) && dma_state
)
3219 schedule_work(&instance
->crash_init
);
3220 else if (fw_state
== MFI_STATE_FAULT
) {
3221 if (instance
->unload
== 0)
3222 schedule_work(&instance
->work_init
);
3224 } else if (fw_state
== MFI_STATE_FAULT
) {
3225 dev_warn(&instance
->pdev
->dev
, "Iop2SysDoorbellInt"
3226 "for scsi%d\n", instance
->host
->host_no
);
3227 if (instance
->unload
== 0)
3228 schedule_work(&instance
->work_init
);
3236 * build_mpt_mfi_pass_thru - builds a cmd fo MFI Pass thru
3237 * @instance: Adapter soft state
3238 * mfi_cmd: megasas_cmd pointer
3242 build_mpt_mfi_pass_thru(struct megasas_instance
*instance
,
3243 struct megasas_cmd
*mfi_cmd
)
3245 struct MPI25_IEEE_SGE_CHAIN64
*mpi25_ieee_chain
;
3246 struct MPI2_RAID_SCSI_IO_REQUEST
*io_req
;
3247 struct megasas_cmd_fusion
*cmd
;
3248 struct fusion_context
*fusion
;
3249 struct megasas_header
*frame_hdr
= &mfi_cmd
->frame
->hdr
;
3251 fusion
= instance
->ctrl_context
;
3253 cmd
= megasas_get_cmd_fusion(instance
,
3254 instance
->max_scsi_cmds
+ mfi_cmd
->index
);
3256 /* Save the smid. To be used for returning the cmd */
3257 mfi_cmd
->context
.smid
= cmd
->index
;
3260 * For cmds where the flag is set, store the flag and check
3261 * on completion. For cmds with this flag, don't call
3262 * megasas_complete_cmd
3265 if (frame_hdr
->flags
& cpu_to_le16(MFI_FRAME_DONT_POST_IN_REPLY_QUEUE
))
3266 mfi_cmd
->flags
|= DRV_DCMD_POLLED_MODE
;
3268 io_req
= cmd
->io_request
;
3270 if (fusion
->adapter_type
>= INVADER_SERIES
) {
3271 struct MPI25_IEEE_SGE_CHAIN64
*sgl_ptr_end
=
3272 (struct MPI25_IEEE_SGE_CHAIN64
*)&io_req
->SGL
;
3273 sgl_ptr_end
+= fusion
->max_sge_in_main_msg
- 1;
3274 sgl_ptr_end
->Flags
= 0;
3278 (struct MPI25_IEEE_SGE_CHAIN64
*)&io_req
->SGL
.IeeeChain
;
3280 io_req
->Function
= MEGASAS_MPI2_FUNCTION_PASSTHRU_IO_REQUEST
;
3281 io_req
->SGLOffset0
= offsetof(struct MPI2_RAID_SCSI_IO_REQUEST
,
3283 io_req
->ChainOffset
= fusion
->chain_offset_mfi_pthru
;
3285 mpi25_ieee_chain
->Address
= cpu_to_le64(mfi_cmd
->frame_phys_addr
);
3287 mpi25_ieee_chain
->Flags
= IEEE_SGE_FLAGS_CHAIN_ELEMENT
|
3288 MPI2_IEEE_SGE_FLAGS_IOCPLBNTA_ADDR
;
3290 mpi25_ieee_chain
->Length
= cpu_to_le32(instance
->max_chain_frame_sz
);
3294 * build_mpt_cmd - Calls helper function to build a cmd MFI Pass thru cmd
3295 * @instance: Adapter soft state
3296 * @cmd: mfi cmd to build
3299 union MEGASAS_REQUEST_DESCRIPTOR_UNION
*
3300 build_mpt_cmd(struct megasas_instance
*instance
, struct megasas_cmd
*cmd
)
3302 union MEGASAS_REQUEST_DESCRIPTOR_UNION
*req_desc
= NULL
;
3305 build_mpt_mfi_pass_thru(instance
, cmd
);
3306 index
= cmd
->context
.smid
;
3308 req_desc
= megasas_get_request_descriptor(instance
, index
- 1);
3310 req_desc
->Words
= 0;
3311 req_desc
->SCSIIO
.RequestFlags
= (MPI2_REQ_DESCRIPT_FLAGS_SCSI_IO
<<
3312 MEGASAS_REQ_DESCRIPT_FLAGS_TYPE_SHIFT
);
3314 req_desc
->SCSIIO
.SMID
= cpu_to_le16(index
);
3320 * megasas_issue_dcmd_fusion - Issues a MFI Pass thru cmd
3321 * @instance: Adapter soft state
3322 * @cmd: mfi cmd pointer
3326 megasas_issue_dcmd_fusion(struct megasas_instance
*instance
,
3327 struct megasas_cmd
*cmd
)
3329 union MEGASAS_REQUEST_DESCRIPTOR_UNION
*req_desc
;
3331 req_desc
= build_mpt_cmd(instance
, cmd
);
3333 megasas_fire_cmd_fusion(instance
, req_desc
);
3338 * megasas_release_fusion - Reverses the FW initialization
3339 * @instance: Adapter soft state
3342 megasas_release_fusion(struct megasas_instance
*instance
)
3344 megasas_free_cmds(instance
);
3345 megasas_free_cmds_fusion(instance
);
3347 iounmap(instance
->reg_set
);
3349 pci_release_selected_regions(instance
->pdev
, 1<<instance
->bar
);
3353 * megasas_read_fw_status_reg_fusion - returns the current FW status value
3354 * @regs: MFI register set
3357 megasas_read_fw_status_reg_fusion(struct megasas_register_set __iomem
*regs
)
3359 return readl(&(regs
)->outbound_scratch_pad
);
3363 * megasas_alloc_host_crash_buffer - Host buffers for Crash dump collection from Firmware
3364 * @instance: Controller's soft instance
3365 * return: Number of allocated host crash buffers
3368 megasas_alloc_host_crash_buffer(struct megasas_instance
*instance
)
3372 instance
->crash_buf_pages
= get_order(CRASH_DMA_BUF_SIZE
);
3373 for (i
= 0; i
< MAX_CRASH_DUMP_SIZE
; i
++) {
3374 instance
->crash_buf
[i
] = (void *)__get_free_pages(GFP_KERNEL
,
3375 instance
->crash_buf_pages
);
3376 if (!instance
->crash_buf
[i
]) {
3377 dev_info(&instance
->pdev
->dev
, "Firmware crash dump "
3378 "memory allocation failed at index %d\n", i
);
3381 memset(instance
->crash_buf
[i
], 0,
3382 ((1 << PAGE_SHIFT
) << instance
->crash_buf_pages
));
3384 instance
->drv_buf_alloc
= i
;
3388 * megasas_free_host_crash_buffer - Host buffers for Crash dump collection from Firmware
3389 * @instance: Controller's soft instance
3392 megasas_free_host_crash_buffer(struct megasas_instance
*instance
)
3396 for (i
= 0; i
< instance
->drv_buf_alloc
; i
++) {
3397 if (instance
->crash_buf
[i
])
3398 free_pages((ulong
)instance
->crash_buf
[i
],
3399 instance
->crash_buf_pages
);
3401 instance
->drv_buf_index
= 0;
3402 instance
->drv_buf_alloc
= 0;
3403 instance
->fw_crash_state
= UNAVAILABLE
;
3404 instance
->fw_crash_buffer_size
= 0;
3408 * megasas_adp_reset_fusion - For controller reset
3409 * @regs: MFI register set
3412 megasas_adp_reset_fusion(struct megasas_instance
*instance
,
3413 struct megasas_register_set __iomem
*regs
)
3415 u32 host_diag
, abs_state
, retry
;
3417 /* Now try to reset the chip */
3418 writel(MPI2_WRSEQ_FLUSH_KEY_VALUE
, &instance
->reg_set
->fusion_seq_offset
);
3419 writel(MPI2_WRSEQ_1ST_KEY_VALUE
, &instance
->reg_set
->fusion_seq_offset
);
3420 writel(MPI2_WRSEQ_2ND_KEY_VALUE
, &instance
->reg_set
->fusion_seq_offset
);
3421 writel(MPI2_WRSEQ_3RD_KEY_VALUE
, &instance
->reg_set
->fusion_seq_offset
);
3422 writel(MPI2_WRSEQ_4TH_KEY_VALUE
, &instance
->reg_set
->fusion_seq_offset
);
3423 writel(MPI2_WRSEQ_5TH_KEY_VALUE
, &instance
->reg_set
->fusion_seq_offset
);
3424 writel(MPI2_WRSEQ_6TH_KEY_VALUE
, &instance
->reg_set
->fusion_seq_offset
);
3426 /* Check that the diag write enable (DRWE) bit is on */
3427 host_diag
= readl(&instance
->reg_set
->fusion_host_diag
);
3429 while (!(host_diag
& HOST_DIAG_WRITE_ENABLE
)) {
3431 host_diag
= readl(&instance
->reg_set
->fusion_host_diag
);
3432 if (retry
++ == 100) {
3433 dev_warn(&instance
->pdev
->dev
,
3434 "Host diag unlock failed from %s %d\n",
3435 __func__
, __LINE__
);
3439 if (!(host_diag
& HOST_DIAG_WRITE_ENABLE
))
3442 /* Send chip reset command */
3443 writel(host_diag
| HOST_DIAG_RESET_ADAPTER
,
3444 &instance
->reg_set
->fusion_host_diag
);
3447 /* Make sure reset adapter bit is cleared */
3448 host_diag
= readl(&instance
->reg_set
->fusion_host_diag
);
3450 while (host_diag
& HOST_DIAG_RESET_ADAPTER
) {
3452 host_diag
= readl(&instance
->reg_set
->fusion_host_diag
);
3453 if (retry
++ == 1000) {
3454 dev_warn(&instance
->pdev
->dev
,
3455 "Diag reset adapter never cleared %s %d\n",
3456 __func__
, __LINE__
);
3460 if (host_diag
& HOST_DIAG_RESET_ADAPTER
)
3463 abs_state
= instance
->instancet
->read_fw_status_reg(instance
->reg_set
)
3467 while ((abs_state
<= MFI_STATE_FW_INIT
) && (retry
++ < 1000)) {
3469 abs_state
= instance
->instancet
->
3470 read_fw_status_reg(instance
->reg_set
) & MFI_STATE_MASK
;
3472 if (abs_state
<= MFI_STATE_FW_INIT
) {
3473 dev_warn(&instance
->pdev
->dev
,
3474 "fw state < MFI_STATE_FW_INIT, state = 0x%x %s %d\n",
3475 abs_state
, __func__
, __LINE__
);
3483 * megasas_check_reset_fusion - For controller reset check
3484 * @regs: MFI register set
3487 megasas_check_reset_fusion(struct megasas_instance
*instance
,
3488 struct megasas_register_set __iomem
*regs
)
3493 /* This function waits for outstanding commands on fusion to complete */
3494 int megasas_wait_for_outstanding_fusion(struct megasas_instance
*instance
,
3495 int reason
, int *convert
)
3497 int i
, outstanding
, retval
= 0, hb_seconds_missed
= 0;
3500 for (i
= 0; i
< resetwaittime
; i
++) {
3501 /* Check if firmware is in fault state */
3502 fw_state
= instance
->instancet
->read_fw_status_reg(
3503 instance
->reg_set
) & MFI_STATE_MASK
;
3504 if (fw_state
== MFI_STATE_FAULT
) {
3505 dev_warn(&instance
->pdev
->dev
, "Found FW in FAULT state,"
3506 " will reset adapter scsi%d.\n",
3507 instance
->host
->host_no
);
3508 megasas_complete_cmd_dpc_fusion((unsigned long)instance
);
3509 if (instance
->requestorId
&& reason
) {
3510 dev_warn(&instance
->pdev
->dev
, "SR-IOV Found FW in FAULT"
3511 " state while polling during"
3512 " I/O timeout handling for %d\n",
3513 instance
->host
->host_no
);
3521 if (reason
== MFI_IO_TIMEOUT_OCR
) {
3522 dev_info(&instance
->pdev
->dev
,
3523 "MFI IO is timed out, initiating OCR\n");
3524 megasas_complete_cmd_dpc_fusion((unsigned long)instance
);
3529 /* If SR-IOV VF mode & heartbeat timeout, don't wait */
3530 if (instance
->requestorId
&& !reason
) {
3535 /* If SR-IOV VF mode & I/O timeout, check for HB timeout */
3536 if (instance
->requestorId
&& (reason
== SCSIIO_TIMEOUT_OCR
)) {
3537 if (instance
->hb_host_mem
->HB
.fwCounter
!=
3538 instance
->hb_host_mem
->HB
.driverCounter
) {
3539 instance
->hb_host_mem
->HB
.driverCounter
=
3540 instance
->hb_host_mem
->HB
.fwCounter
;
3541 hb_seconds_missed
= 0;
3543 hb_seconds_missed
++;
3544 if (hb_seconds_missed
==
3545 (MEGASAS_SRIOV_HEARTBEAT_INTERVAL_VF
/HZ
)) {
3546 dev_warn(&instance
->pdev
->dev
, "SR-IOV:"
3547 " Heartbeat never completed "
3548 " while polling during I/O "
3549 " timeout handling for "
3551 instance
->host
->host_no
);
3559 outstanding
= atomic_read(&instance
->fw_outstanding
);
3563 if (!(i
% MEGASAS_RESET_NOTICE_INTERVAL
)) {
3564 dev_notice(&instance
->pdev
->dev
, "[%2d]waiting for %d "
3565 "commands to complete for scsi%d\n", i
,
3566 outstanding
, instance
->host
->host_no
);
3567 megasas_complete_cmd_dpc_fusion(
3568 (unsigned long)instance
);
3573 if (atomic_read(&instance
->fw_outstanding
)) {
3574 dev_err(&instance
->pdev
->dev
, "pending commands remain after waiting, "
3575 "will reset adapter scsi%d.\n",
3576 instance
->host
->host_no
);
3584 void megasas_reset_reply_desc(struct megasas_instance
*instance
)
3587 struct fusion_context
*fusion
;
3588 union MPI2_REPLY_DESCRIPTORS_UNION
*reply_desc
;
3590 fusion
= instance
->ctrl_context
;
3591 count
= instance
->msix_vectors
> 0 ? instance
->msix_vectors
: 1;
3592 for (i
= 0 ; i
< count
; i
++) {
3593 fusion
->last_reply_idx
[i
] = 0;
3594 reply_desc
= fusion
->reply_frames_desc
[i
];
3595 for (j
= 0 ; j
< fusion
->reply_q_depth
; j
++, reply_desc
++)
3596 reply_desc
->Words
= cpu_to_le64(ULLONG_MAX
);
3601 * megasas_refire_mgmt_cmd : Re-fire management commands
3602 * @instance: Controller's soft instance
3604 void megasas_refire_mgmt_cmd(struct megasas_instance
*instance
)
3607 struct megasas_cmd_fusion
*cmd_fusion
;
3608 struct fusion_context
*fusion
;
3609 struct megasas_cmd
*cmd_mfi
;
3610 union MEGASAS_REQUEST_DESCRIPTOR_UNION
*req_desc
;
3612 bool refire_cmd
= 0;
3614 fusion
= instance
->ctrl_context
;
3616 /* Re-fire management commands.
3617 * Do not traverse complet MPT frame pool. Start from max_scsi_cmds.
3619 for (j
= instance
->max_scsi_cmds
; j
< instance
->max_fw_cmds
; j
++) {
3620 cmd_fusion
= fusion
->cmd_list
[j
];
3621 cmd_mfi
= instance
->cmd_list
[cmd_fusion
->sync_cmd_idx
];
3622 smid
= le16_to_cpu(cmd_mfi
->context
.smid
);
3626 req_desc
= megasas_get_request_descriptor
3627 (instance
, smid
- 1);
3628 refire_cmd
= req_desc
&& ((cmd_mfi
->frame
->dcmd
.opcode
!=
3629 cpu_to_le32(MR_DCMD_LD_MAP_GET_INFO
)) &&
3630 (cmd_mfi
->frame
->dcmd
.opcode
!=
3631 cpu_to_le32(MR_DCMD_SYSTEM_PD_MAP_GET_INFO
)))
3632 && !(cmd_mfi
->flags
& DRV_DCMD_SKIP_REFIRE
);
3634 megasas_fire_cmd_fusion(instance
, req_desc
);
3636 megasas_return_cmd(instance
, cmd_mfi
);
3641 * megasas_track_scsiio : Track SCSI IOs outstanding to a SCSI device
3642 * @instance: per adapter struct
3643 * @channel: the channel assigned by the OS
3644 * @id: the id assigned by the OS
3646 * Returns SUCCESS if no IOs pending to SCSI device, else return FAILED
3649 static int megasas_track_scsiio(struct megasas_instance
*instance
,
3650 int id
, int channel
)
3653 struct megasas_cmd_fusion
*cmd_fusion
;
3654 struct fusion_context
*fusion
;
3655 fusion
= instance
->ctrl_context
;
3657 for (i
= 0 ; i
< instance
->max_scsi_cmds
; i
++) {
3658 cmd_fusion
= fusion
->cmd_list
[i
];
3659 if (cmd_fusion
->scmd
&&
3660 (cmd_fusion
->scmd
->device
->id
== id
&&
3661 cmd_fusion
->scmd
->device
->channel
== channel
)) {
3662 dev_info(&instance
->pdev
->dev
,
3663 "SCSI commands pending to target"
3664 "channel %d id %d \tSMID: 0x%x\n",
3665 channel
, id
, cmd_fusion
->index
);
3666 scsi_print_command(cmd_fusion
->scmd
);
3672 return found
? FAILED
: SUCCESS
;
3676 * megasas_tm_response_code - translation of device response code
3677 * @ioc: per adapter object
3678 * @mpi_reply: MPI reply returned by firmware
3683 megasas_tm_response_code(struct megasas_instance
*instance
,
3684 struct MPI2_SCSI_TASK_MANAGE_REPLY
*mpi_reply
)
3688 switch (mpi_reply
->ResponseCode
) {
3689 case MPI2_SCSITASKMGMT_RSP_TM_COMPLETE
:
3690 desc
= "task management request completed";
3692 case MPI2_SCSITASKMGMT_RSP_INVALID_FRAME
:
3693 desc
= "invalid frame";
3695 case MPI2_SCSITASKMGMT_RSP_TM_NOT_SUPPORTED
:
3696 desc
= "task management request not supported";
3698 case MPI2_SCSITASKMGMT_RSP_TM_FAILED
:
3699 desc
= "task management request failed";
3701 case MPI2_SCSITASKMGMT_RSP_TM_SUCCEEDED
:
3702 desc
= "task management request succeeded";
3704 case MPI2_SCSITASKMGMT_RSP_TM_INVALID_LUN
:
3705 desc
= "invalid lun";
3708 desc
= "overlapped tag attempted";
3710 case MPI2_SCSITASKMGMT_RSP_IO_QUEUED_ON_IOC
:
3711 desc
= "task queued, however not sent to target";
3717 dev_dbg(&instance
->pdev
->dev
, "response_code(%01x): %s\n",
3718 mpi_reply
->ResponseCode
, desc
);
3719 dev_dbg(&instance
->pdev
->dev
,
3720 "TerminationCount/DevHandle/Function/TaskType/IOCStat/IOCLoginfo"
3721 " 0x%x/0x%x/0x%x/0x%x/0x%x/0x%x\n",
3722 mpi_reply
->TerminationCount
, mpi_reply
->DevHandle
,
3723 mpi_reply
->Function
, mpi_reply
->TaskType
,
3724 mpi_reply
->IOCStatus
, mpi_reply
->IOCLogInfo
);
3728 * megasas_issue_tm - main routine for sending tm requests
3729 * @instance: per adapter struct
3730 * @device_handle: device handle
3731 * @channel: the channel assigned by the OS
3732 * @id: the id assigned by the OS
3733 * @type: MPI2_SCSITASKMGMT_TASKTYPE__XXX (defined in megaraid_sas_fusion.c)
3734 * @smid_task: smid assigned to the task
3735 * @m_type: TM_MUTEX_ON or TM_MUTEX_OFF
3738 * MegaRaid use MPT interface for Task Magement request.
3739 * A generic API for sending task management requests to firmware.
3741 * Return SUCCESS or FAILED.
3744 megasas_issue_tm(struct megasas_instance
*instance
, u16 device_handle
,
3745 uint channel
, uint id
, u16 smid_task
, u8 type
)
3747 struct MR_TASK_MANAGE_REQUEST
*mr_request
;
3748 struct MPI2_SCSI_TASK_MANAGE_REQUEST
*mpi_request
;
3749 unsigned long timeleft
;
3750 struct megasas_cmd_fusion
*cmd_fusion
;
3751 struct megasas_cmd
*cmd_mfi
;
3752 union MEGASAS_REQUEST_DESCRIPTOR_UNION
*req_desc
;
3753 struct fusion_context
*fusion
;
3754 struct megasas_cmd_fusion
*scsi_lookup
;
3756 struct MPI2_SCSI_TASK_MANAGE_REPLY
*mpi_reply
;
3758 fusion
= instance
->ctrl_context
;
3760 cmd_mfi
= megasas_get_cmd(instance
);
3763 dev_err(&instance
->pdev
->dev
, "Failed from %s %d\n",
3764 __func__
, __LINE__
);
3768 cmd_fusion
= megasas_get_cmd_fusion(instance
,
3769 instance
->max_scsi_cmds
+ cmd_mfi
->index
);
3771 /* Save the smid. To be used for returning the cmd */
3772 cmd_mfi
->context
.smid
= cmd_fusion
->index
;
3774 req_desc
= megasas_get_request_descriptor(instance
,
3775 (cmd_fusion
->index
- 1));
3777 cmd_fusion
->request_desc
= req_desc
;
3778 req_desc
->Words
= 0;
3780 scsi_lookup
= fusion
->cmd_list
[smid_task
- 1];
3782 mr_request
= (struct MR_TASK_MANAGE_REQUEST
*) cmd_fusion
->io_request
;
3783 memset(mr_request
, 0, sizeof(struct MR_TASK_MANAGE_REQUEST
));
3784 mpi_request
= (struct MPI2_SCSI_TASK_MANAGE_REQUEST
*) &mr_request
->TmRequest
;
3785 mpi_request
->Function
= MPI2_FUNCTION_SCSI_TASK_MGMT
;
3786 mpi_request
->DevHandle
= cpu_to_le16(device_handle
);
3787 mpi_request
->TaskType
= type
;
3788 mpi_request
->TaskMID
= cpu_to_le16(smid_task
);
3789 mpi_request
->LUN
[1] = 0;
3792 req_desc
= cmd_fusion
->request_desc
;
3793 req_desc
->HighPriority
.SMID
= cpu_to_le16(cmd_fusion
->index
);
3794 req_desc
->HighPriority
.RequestFlags
=
3795 (MPI2_REQ_DESCRIPT_FLAGS_HIGH_PRIORITY
<<
3796 MEGASAS_REQ_DESCRIPT_FLAGS_TYPE_SHIFT
);
3797 req_desc
->HighPriority
.MSIxIndex
= 0;
3798 req_desc
->HighPriority
.LMID
= 0;
3799 req_desc
->HighPriority
.Reserved1
= 0;
3801 if (channel
< MEGASAS_MAX_PD_CHANNELS
)
3802 mr_request
->tmReqFlags
.isTMForPD
= 1;
3804 mr_request
->tmReqFlags
.isTMForLD
= 1;
3806 init_completion(&cmd_fusion
->done
);
3807 megasas_fire_cmd_fusion(instance
, req_desc
);
3809 timeleft
= wait_for_completion_timeout(&cmd_fusion
->done
, 50 * HZ
);
3812 dev_err(&instance
->pdev
->dev
,
3813 "task mgmt type 0x%x timed out\n", type
);
3814 cmd_mfi
->flags
|= DRV_DCMD_SKIP_REFIRE
;
3815 mutex_unlock(&instance
->reset_mutex
);
3816 rc
= megasas_reset_fusion(instance
->host
, MFI_IO_TIMEOUT_OCR
);
3817 mutex_lock(&instance
->reset_mutex
);
3821 mpi_reply
= (struct MPI2_SCSI_TASK_MANAGE_REPLY
*) &mr_request
->TMReply
;
3822 megasas_tm_response_code(instance
, mpi_reply
);
3824 megasas_return_cmd(instance
, cmd_mfi
);
3827 case MPI2_SCSITASKMGMT_TASKTYPE_ABORT_TASK
:
3828 if (scsi_lookup
->scmd
== NULL
)
3831 instance
->instancet
->disable_intr(instance
);
3832 megasas_sync_irqs((unsigned long)instance
);
3833 megasas_complete_cmd_dpc_fusion
3834 ((unsigned long)instance
);
3835 instance
->instancet
->enable_intr(instance
);
3836 if (scsi_lookup
->scmd
== NULL
)
3842 case MPI2_SCSITASKMGMT_TASKTYPE_TARGET_RESET
:
3843 if ((channel
== 0xFFFFFFFF) && (id
== 0xFFFFFFFF))
3845 instance
->instancet
->disable_intr(instance
);
3847 megasas_complete_cmd_dpc_fusion
3848 ((unsigned long)instance
);
3849 rc
= megasas_track_scsiio(instance
, id
, channel
);
3850 instance
->instancet
->enable_intr(instance
);
3853 case MPI2_SCSITASKMGMT_TASKTYPE_ABRT_TASK_SET
:
3854 case MPI2_SCSITASKMGMT_TASKTYPE_QUERY_TASK
:
3866 * megasas_fusion_smid_lookup : Look for fusion command correpspodning to SCSI
3867 * @instance: per adapter struct
3869 * Return Non Zero index, if SMID found in outstanding commands
3871 static u16
megasas_fusion_smid_lookup(struct scsi_cmnd
*scmd
)
3874 struct megasas_instance
*instance
;
3875 struct megasas_cmd_fusion
*cmd_fusion
;
3876 struct fusion_context
*fusion
;
3878 instance
= (struct megasas_instance
*)scmd
->device
->host
->hostdata
;
3880 fusion
= instance
->ctrl_context
;
3882 for (i
= 0; i
< instance
->max_scsi_cmds
; i
++) {
3883 cmd_fusion
= fusion
->cmd_list
[i
];
3884 if (cmd_fusion
->scmd
&& (cmd_fusion
->scmd
== scmd
)) {
3885 scmd_printk(KERN_NOTICE
, scmd
, "Abort request is for"
3886 " SMID: %d\n", cmd_fusion
->index
);
3887 ret
= cmd_fusion
->index
;
3896 * megasas_get_tm_devhandle - Get devhandle for TM request
3897 * @sdev- OS provided scsi device
3899 * Returns- devhandle/targetID of SCSI device
3901 static u16
megasas_get_tm_devhandle(struct scsi_device
*sdev
)
3905 struct megasas_instance
*instance
;
3906 struct fusion_context
*fusion
;
3907 struct MR_PD_CFG_SEQ_NUM_SYNC
*pd_sync
;
3908 u16 devhandle
= (u16
)ULONG_MAX
;
3910 instance
= (struct megasas_instance
*)sdev
->host
->hostdata
;
3911 fusion
= instance
->ctrl_context
;
3913 if (!MEGASAS_IS_LOGICAL(sdev
)) {
3914 if (instance
->use_seqnum_jbod_fp
) {
3915 pd_index
= (sdev
->channel
* MEGASAS_MAX_DEV_PER_CHANNEL
)
3917 pd_sync
= (void *)fusion
->pd_seq_sync
3918 [(instance
->pd_seq_map_id
- 1) & 1];
3919 devhandle
= pd_sync
->seq
[pd_index
].devHandle
;
3921 sdev_printk(KERN_ERR
, sdev
, "Firmware expose tmCapable"
3922 " without JBOD MAP support from %s %d\n", __func__
, __LINE__
);
3924 device_id
= ((sdev
->channel
% 2) * MEGASAS_MAX_DEV_PER_CHANNEL
)
3926 devhandle
= device_id
;
3933 * megasas_task_abort_fusion : SCSI task abort function for fusion adapters
3934 * @scmd : pointer to scsi command object
3936 * Return SUCCESS, if command aborted else FAILED
3939 int megasas_task_abort_fusion(struct scsi_cmnd
*scmd
)
3941 struct megasas_instance
*instance
;
3942 u16 smid
, devhandle
;
3943 struct fusion_context
*fusion
;
3945 struct MR_PRIV_DEVICE
*mr_device_priv_data
;
3946 mr_device_priv_data
= scmd
->device
->hostdata
;
3949 instance
= (struct megasas_instance
*)scmd
->device
->host
->hostdata
;
3950 fusion
= instance
->ctrl_context
;
3952 scmd_printk(KERN_INFO
, scmd
, "task abort called for scmd(%p)\n", scmd
);
3953 scsi_print_command(scmd
);
3955 if (atomic_read(&instance
->adprecovery
) != MEGASAS_HBA_OPERATIONAL
) {
3956 dev_err(&instance
->pdev
->dev
, "Controller is not OPERATIONAL,"
3957 "SCSI host:%d\n", instance
->host
->host_no
);
3962 if (!mr_device_priv_data
) {
3963 sdev_printk(KERN_INFO
, scmd
->device
, "device been deleted! "
3964 "scmd(%p)\n", scmd
);
3965 scmd
->result
= DID_NO_CONNECT
<< 16;
3971 if (!mr_device_priv_data
->is_tm_capable
) {
3976 mutex_lock(&instance
->reset_mutex
);
3978 smid
= megasas_fusion_smid_lookup(scmd
);
3982 scmd_printk(KERN_NOTICE
, scmd
, "Command for which abort is"
3983 " issued is not found in oustanding commands\n");
3984 mutex_unlock(&instance
->reset_mutex
);
3988 devhandle
= megasas_get_tm_devhandle(scmd
->device
);
3990 if (devhandle
== (u16
)ULONG_MAX
) {
3992 sdev_printk(KERN_INFO
, scmd
->device
,
3993 "task abort issued for invalid devhandle\n");
3994 mutex_unlock(&instance
->reset_mutex
);
3997 sdev_printk(KERN_INFO
, scmd
->device
,
3998 "attempting task abort! scmd(%p) tm_dev_handle 0x%x\n",
4001 mr_device_priv_data
->tm_busy
= 1;
4002 ret
= megasas_issue_tm(instance
, devhandle
,
4003 scmd
->device
->channel
, scmd
->device
->id
, smid
,
4004 MPI2_SCSITASKMGMT_TASKTYPE_ABORT_TASK
);
4005 mr_device_priv_data
->tm_busy
= 0;
4007 mutex_unlock(&instance
->reset_mutex
);
4009 sdev_printk(KERN_INFO
, scmd
->device
, "task abort: %s scmd(%p)\n",
4010 ((ret
== SUCCESS
) ? "SUCCESS" : "FAILED"), scmd
);
4016 * megasas_reset_target_fusion : target reset function for fusion adapters
4017 * scmd: SCSI command pointer
4019 * Returns SUCCESS if all commands associated with target aborted else FAILED
4022 int megasas_reset_target_fusion(struct scsi_cmnd
*scmd
)
4025 struct megasas_instance
*instance
;
4028 struct fusion_context
*fusion
;
4029 struct MR_PRIV_DEVICE
*mr_device_priv_data
;
4030 mr_device_priv_data
= scmd
->device
->hostdata
;
4032 instance
= (struct megasas_instance
*)scmd
->device
->host
->hostdata
;
4033 fusion
= instance
->ctrl_context
;
4035 sdev_printk(KERN_INFO
, scmd
->device
,
4036 "target reset called for scmd(%p)\n", scmd
);
4038 if (atomic_read(&instance
->adprecovery
) != MEGASAS_HBA_OPERATIONAL
) {
4039 dev_err(&instance
->pdev
->dev
, "Controller is not OPERATIONAL,"
4040 "SCSI host:%d\n", instance
->host
->host_no
);
4045 if (!mr_device_priv_data
) {
4046 sdev_printk(KERN_INFO
, scmd
->device
, "device been deleted! "
4047 "scmd(%p)\n", scmd
);
4048 scmd
->result
= DID_NO_CONNECT
<< 16;
4054 if (!mr_device_priv_data
->is_tm_capable
) {
4059 mutex_lock(&instance
->reset_mutex
);
4060 devhandle
= megasas_get_tm_devhandle(scmd
->device
);
4062 if (devhandle
== (u16
)ULONG_MAX
) {
4064 sdev_printk(KERN_INFO
, scmd
->device
,
4065 "target reset issued for invalid devhandle\n");
4066 mutex_unlock(&instance
->reset_mutex
);
4070 sdev_printk(KERN_INFO
, scmd
->device
,
4071 "attempting target reset! scmd(%p) tm_dev_handle 0x%x\n",
4073 mr_device_priv_data
->tm_busy
= 1;
4074 ret
= megasas_issue_tm(instance
, devhandle
,
4075 scmd
->device
->channel
, scmd
->device
->id
, 0,
4076 MPI2_SCSITASKMGMT_TASKTYPE_TARGET_RESET
);
4077 mr_device_priv_data
->tm_busy
= 0;
4078 mutex_unlock(&instance
->reset_mutex
);
4080 scmd_printk(KERN_NOTICE
, scmd
, "megasas: target reset %s!!\n",
4081 (ret
== SUCCESS
) ? "SUCCESS" : "FAILED");
4086 /*SRIOV get other instance in cluster if any*/
4087 struct megasas_instance
*megasas_get_peer_instance(struct megasas_instance
*instance
)
4091 for (i
= 0; i
< MAX_MGMT_ADAPTERS
; i
++) {
4092 if (megasas_mgmt_info
.instance
[i
] &&
4093 (megasas_mgmt_info
.instance
[i
] != instance
) &&
4094 megasas_mgmt_info
.instance
[i
]->requestorId
&&
4095 megasas_mgmt_info
.instance
[i
]->peerIsPresent
&&
4096 (memcmp((megasas_mgmt_info
.instance
[i
]->clusterId
),
4097 instance
->clusterId
, MEGASAS_CLUSTER_ID_SIZE
) == 0))
4098 return megasas_mgmt_info
.instance
[i
];
4103 /* Check for a second path that is currently UP */
4104 int megasas_check_mpio_paths(struct megasas_instance
*instance
,
4105 struct scsi_cmnd
*scmd
)
4107 struct megasas_instance
*peer_instance
= NULL
;
4108 int retval
= (DID_REQUEUE
<< 16);
4110 if (instance
->peerIsPresent
) {
4111 peer_instance
= megasas_get_peer_instance(instance
);
4112 if ((peer_instance
) &&
4113 (atomic_read(&peer_instance
->adprecovery
) ==
4114 MEGASAS_HBA_OPERATIONAL
))
4115 retval
= (DID_NO_CONNECT
<< 16);
4120 /* Core fusion reset function */
4121 int megasas_reset_fusion(struct Scsi_Host
*shost
, int reason
)
4123 int retval
= SUCCESS
, i
, j
, convert
= 0;
4124 struct megasas_instance
*instance
;
4125 struct megasas_cmd_fusion
*cmd_fusion
, *r1_cmd
;
4126 struct fusion_context
*fusion
;
4127 u32 abs_state
, status_reg
, reset_adapter
;
4128 u32 io_timeout_in_crash_mode
= 0;
4129 struct scsi_cmnd
*scmd_local
= NULL
;
4130 struct scsi_device
*sdev
;
4132 instance
= (struct megasas_instance
*)shost
->hostdata
;
4133 fusion
= instance
->ctrl_context
;
4135 mutex_lock(&instance
->reset_mutex
);
4137 if (atomic_read(&instance
->adprecovery
) == MEGASAS_HW_CRITICAL_ERROR
) {
4138 dev_warn(&instance
->pdev
->dev
, "Hardware critical error, "
4139 "returning FAILED for scsi%d.\n",
4140 instance
->host
->host_no
);
4141 mutex_unlock(&instance
->reset_mutex
);
4144 status_reg
= instance
->instancet
->read_fw_status_reg(instance
->reg_set
);
4145 abs_state
= status_reg
& MFI_STATE_MASK
;
4147 /* IO timeout detected, forcibly put FW in FAULT state */
4148 if (abs_state
!= MFI_STATE_FAULT
&& instance
->crash_dump_buf
&&
4149 instance
->crash_dump_app_support
&& reason
) {
4150 dev_info(&instance
->pdev
->dev
, "IO/DCMD timeout is detected, "
4151 "forcibly FAULT Firmware\n");
4152 atomic_set(&instance
->adprecovery
, MEGASAS_ADPRESET_SM_INFAULT
);
4153 status_reg
= readl(&instance
->reg_set
->doorbell
);
4154 writel(status_reg
| MFI_STATE_FORCE_OCR
,
4155 &instance
->reg_set
->doorbell
);
4156 readl(&instance
->reg_set
->doorbell
);
4157 mutex_unlock(&instance
->reset_mutex
);
4160 io_timeout_in_crash_mode
++;
4161 dev_dbg(&instance
->pdev
->dev
, "waiting for [%d] "
4162 "seconds for crash dump collection and OCR "
4163 "to be done\n", (io_timeout_in_crash_mode
* 3));
4164 } while ((atomic_read(&instance
->adprecovery
) != MEGASAS_HBA_OPERATIONAL
) &&
4165 (io_timeout_in_crash_mode
< 80));
4167 if (atomic_read(&instance
->adprecovery
) == MEGASAS_HBA_OPERATIONAL
) {
4168 dev_info(&instance
->pdev
->dev
, "OCR done for IO "
4172 dev_info(&instance
->pdev
->dev
, "Controller is not "
4173 "operational after 240 seconds wait for IO "
4174 "timeout case in FW crash dump mode\n do "
4175 "OCR/kill adapter\n");
4176 retval
= megasas_reset_fusion(shost
, 0);
4181 if (instance
->requestorId
&& !instance
->skip_heartbeat_timer_del
)
4182 del_timer_sync(&instance
->sriov_heartbeat_timer
);
4183 set_bit(MEGASAS_FUSION_IN_RESET
, &instance
->reset_flags
);
4184 atomic_set(&instance
->adprecovery
, MEGASAS_ADPRESET_SM_POLLING
);
4185 instance
->instancet
->disable_intr(instance
);
4186 megasas_sync_irqs((unsigned long)instance
);
4188 /* First try waiting for commands to complete */
4189 if (megasas_wait_for_outstanding_fusion(instance
, reason
,
4191 atomic_set(&instance
->adprecovery
, MEGASAS_ADPRESET_SM_INFAULT
);
4192 dev_warn(&instance
->pdev
->dev
, "resetting fusion "
4193 "adapter scsi%d.\n", instance
->host
->host_no
);
4197 if (megasas_dbg_lvl
& OCR_LOGS
)
4198 dev_info(&instance
->pdev
->dev
, "\nPending SCSI commands:\n");
4200 /* Now return commands back to the OS */
4201 for (i
= 0 ; i
< instance
->max_scsi_cmds
; i
++) {
4202 cmd_fusion
= fusion
->cmd_list
[i
];
4203 /*check for extra commands issued by driver*/
4204 if (instance
->is_ventura
) {
4205 r1_cmd
= fusion
->cmd_list
[i
+ instance
->max_fw_cmds
];
4206 megasas_return_cmd_fusion(instance
, r1_cmd
);
4208 scmd_local
= cmd_fusion
->scmd
;
4209 if (cmd_fusion
->scmd
) {
4210 if (megasas_dbg_lvl
& OCR_LOGS
) {
4211 sdev_printk(KERN_INFO
,
4212 cmd_fusion
->scmd
->device
, "SMID: 0x%x\n",
4214 scsi_print_command(cmd_fusion
->scmd
);
4217 scmd_local
->result
=
4218 megasas_check_mpio_paths(instance
,
4220 if (instance
->ldio_threshold
&&
4221 megasas_cmd_type(scmd_local
) == READ_WRITE_LDIO
)
4222 atomic_dec(&instance
->ldio_outstanding
);
4223 megasas_return_cmd_fusion(instance
, cmd_fusion
);
4224 scsi_dma_unmap(scmd_local
);
4225 scmd_local
->scsi_done(scmd_local
);
4229 atomic_set(&instance
->fw_outstanding
, 0);
4231 status_reg
= instance
->instancet
->read_fw_status_reg(
4233 abs_state
= status_reg
& MFI_STATE_MASK
;
4234 reset_adapter
= status_reg
& MFI_RESET_ADAPTER
;
4235 if (instance
->disableOnlineCtrlReset
||
4236 (abs_state
== MFI_STATE_FAULT
&& !reset_adapter
)) {
4237 /* Reset not supported, kill adapter */
4238 dev_warn(&instance
->pdev
->dev
, "Reset not supported"
4239 ", killing adapter scsi%d.\n",
4240 instance
->host
->host_no
);
4241 megaraid_sas_kill_hba(instance
);
4242 instance
->skip_heartbeat_timer_del
= 1;
4247 /* Let SR-IOV VF & PF sync up if there was a HB failure */
4248 if (instance
->requestorId
&& !reason
) {
4249 msleep(MEGASAS_OCR_SETTLE_TIME_VF
);
4250 goto transition_to_ready
;
4253 /* Now try to reset the chip */
4254 for (i
= 0; i
< MEGASAS_FUSION_MAX_RESET_TRIES
; i
++) {
4256 if (instance
->instancet
->adp_reset
4257 (instance
, instance
->reg_set
))
4259 transition_to_ready
:
4260 /* Wait for FW to become ready */
4261 if (megasas_transition_to_ready(instance
, 1)) {
4262 dev_warn(&instance
->pdev
->dev
,
4263 "Failed to transition controller to ready for "
4264 "scsi%d.\n", instance
->host
->host_no
);
4265 if (instance
->requestorId
&& !reason
)
4266 goto fail_kill_adapter
;
4270 megasas_reset_reply_desc(instance
);
4271 megasas_fusion_update_can_queue(instance
, OCR_CONTEXT
);
4273 if (megasas_ioc_init_fusion(instance
)) {
4274 dev_warn(&instance
->pdev
->dev
,
4275 "megasas_ioc_init_fusion() failed! for "
4276 "scsi%d\n", instance
->host
->host_no
);
4277 if (instance
->requestorId
&& !reason
)
4278 goto fail_kill_adapter
;
4283 megasas_refire_mgmt_cmd(instance
);
4285 if (megasas_get_ctrl_info(instance
)) {
4286 dev_info(&instance
->pdev
->dev
,
4287 "Failed from %s %d\n",
4288 __func__
, __LINE__
);
4289 megaraid_sas_kill_hba(instance
);
4293 /* Reset load balance info */
4294 if (fusion
->load_balance_info
)
4295 memset(fusion
->load_balance_info
, 0,
4296 (sizeof(struct LD_LOAD_BALANCE_INFO
) *
4297 MAX_LOGICAL_DRIVES_EXT
));
4299 if (!megasas_get_map_info(instance
))
4300 megasas_sync_map_info(instance
);
4302 megasas_setup_jbod_map(instance
);
4304 shost_for_each_device(sdev
, shost
)
4305 megasas_set_dynamic_target_properties(sdev
);
4307 /* reset stream detection array */
4308 if (instance
->is_ventura
) {
4309 for (j
= 0; j
< MAX_LOGICAL_DRIVES_EXT
; ++j
) {
4310 memset(fusion
->stream_detect_by_ld
[j
],
4311 0, sizeof(struct LD_STREAM_DETECT
));
4312 fusion
->stream_detect_by_ld
[j
]->mru_bit_map
4317 clear_bit(MEGASAS_FUSION_IN_RESET
,
4318 &instance
->reset_flags
);
4319 instance
->instancet
->enable_intr(instance
);
4320 atomic_set(&instance
->adprecovery
, MEGASAS_HBA_OPERATIONAL
);
4322 /* Restart SR-IOV heartbeat */
4323 if (instance
->requestorId
) {
4324 if (!megasas_sriov_start_heartbeat(instance
, 0))
4325 megasas_start_timer(instance
,
4326 &instance
->sriov_heartbeat_timer
,
4327 megasas_sriov_heartbeat_handler
,
4328 MEGASAS_SRIOV_HEARTBEAT_INTERVAL_VF
);
4330 instance
->skip_heartbeat_timer_del
= 1;
4333 /* Adapter reset completed successfully */
4334 dev_warn(&instance
->pdev
->dev
, "Reset "
4335 "successful for scsi%d.\n",
4336 instance
->host
->host_no
);
4338 if (instance
->crash_dump_drv_support
&&
4339 instance
->crash_dump_app_support
)
4340 megasas_set_crash_dump_params(instance
,
4341 MR_CRASH_BUF_TURN_ON
);
4343 megasas_set_crash_dump_params(instance
,
4344 MR_CRASH_BUF_TURN_OFF
);
4350 /* Reset failed, kill the adapter */
4351 dev_warn(&instance
->pdev
->dev
, "Reset failed, killing "
4352 "adapter scsi%d.\n", instance
->host
->host_no
);
4353 megaraid_sas_kill_hba(instance
);
4354 instance
->skip_heartbeat_timer_del
= 1;
4357 /* For VF: Restart HB timer if we didn't OCR */
4358 if (instance
->requestorId
) {
4359 megasas_start_timer(instance
,
4360 &instance
->sriov_heartbeat_timer
,
4361 megasas_sriov_heartbeat_handler
,
4362 MEGASAS_SRIOV_HEARTBEAT_INTERVAL_VF
);
4364 clear_bit(MEGASAS_FUSION_IN_RESET
, &instance
->reset_flags
);
4365 instance
->instancet
->enable_intr(instance
);
4366 atomic_set(&instance
->adprecovery
, MEGASAS_HBA_OPERATIONAL
);
4369 clear_bit(MEGASAS_FUSION_IN_RESET
, &instance
->reset_flags
);
4370 mutex_unlock(&instance
->reset_mutex
);
4374 /* Fusion Crash dump collection work queue */
4375 void megasas_fusion_crash_dump_wq(struct work_struct
*work
)
4377 struct megasas_instance
*instance
=
4378 container_of(work
, struct megasas_instance
, crash_init
);
4380 u8 partial_copy
= 0;
4383 status_reg
= instance
->instancet
->read_fw_status_reg(instance
->reg_set
);
4386 * Allocate host crash buffers to copy data from 1 MB DMA crash buffer
4387 * to host crash buffers
4389 if (instance
->drv_buf_index
== 0) {
4390 /* Buffer is already allocated for old Crash dump.
4391 * Do OCR and do not wait for crash dump collection
4393 if (instance
->drv_buf_alloc
) {
4394 dev_info(&instance
->pdev
->dev
, "earlier crash dump is "
4395 "not yet copied by application, ignoring this "
4396 "crash dump and initiating OCR\n");
4397 status_reg
|= MFI_STATE_CRASH_DUMP_DONE
;
4399 &instance
->reg_set
->outbound_scratch_pad
);
4400 readl(&instance
->reg_set
->outbound_scratch_pad
);
4403 megasas_alloc_host_crash_buffer(instance
);
4404 dev_info(&instance
->pdev
->dev
, "Number of host crash buffers "
4405 "allocated: %d\n", instance
->drv_buf_alloc
);
4409 * Driver has allocated max buffers, which can be allocated
4410 * and FW has more crash dump data, then driver will
4413 if (instance
->drv_buf_index
>= (instance
->drv_buf_alloc
)) {
4414 dev_info(&instance
->pdev
->dev
, "Driver is done copying "
4415 "the buffer: %d\n", instance
->drv_buf_alloc
);
4416 status_reg
|= MFI_STATE_CRASH_DUMP_DONE
;
4419 memcpy(instance
->crash_buf
[instance
->drv_buf_index
],
4420 instance
->crash_dump_buf
, CRASH_DMA_BUF_SIZE
);
4421 instance
->drv_buf_index
++;
4422 status_reg
&= ~MFI_STATE_DMADONE
;
4425 if (status_reg
& MFI_STATE_CRASH_DUMP_DONE
) {
4426 dev_info(&instance
->pdev
->dev
, "Crash Dump is available,number "
4427 "of copied buffers: %d\n", instance
->drv_buf_index
);
4428 instance
->fw_crash_buffer_size
= instance
->drv_buf_index
;
4429 instance
->fw_crash_state
= AVAILABLE
;
4430 instance
->drv_buf_index
= 0;
4431 writel(status_reg
, &instance
->reg_set
->outbound_scratch_pad
);
4432 readl(&instance
->reg_set
->outbound_scratch_pad
);
4434 megasas_reset_fusion(instance
->host
, 0);
4436 writel(status_reg
, &instance
->reg_set
->outbound_scratch_pad
);
4437 readl(&instance
->reg_set
->outbound_scratch_pad
);
4442 /* Fusion OCR work queue */
4443 void megasas_fusion_ocr_wq(struct work_struct
*work
)
4445 struct megasas_instance
*instance
=
4446 container_of(work
, struct megasas_instance
, work_init
);
4448 megasas_reset_fusion(instance
->host
, 0);
4451 /* Allocate fusion context */
4453 megasas_alloc_fusion_context(struct megasas_instance
*instance
)
4455 struct fusion_context
*fusion
;
4457 instance
->ctrl_context_pages
= get_order(sizeof(struct fusion_context
));
4458 instance
->ctrl_context
= (void *)__get_free_pages(GFP_KERNEL
| __GFP_ZERO
,
4459 instance
->ctrl_context_pages
);
4460 if (!instance
->ctrl_context
) {
4461 /* fall back to using vmalloc for fusion_context */
4462 instance
->ctrl_context
= vzalloc(sizeof(struct fusion_context
));
4463 if (!instance
->ctrl_context
) {
4464 dev_err(&instance
->pdev
->dev
, "Failed from %s %d\n", __func__
, __LINE__
);
4469 fusion
= instance
->ctrl_context
;
4471 fusion
->load_balance_info_pages
= get_order(MAX_LOGICAL_DRIVES_EXT
*
4472 sizeof(struct LD_LOAD_BALANCE_INFO
));
4473 fusion
->load_balance_info
=
4474 (struct LD_LOAD_BALANCE_INFO
*)__get_free_pages(GFP_KERNEL
| __GFP_ZERO
,
4475 fusion
->load_balance_info_pages
);
4476 if (!fusion
->load_balance_info
) {
4477 fusion
->load_balance_info
= vzalloc(MAX_LOGICAL_DRIVES_EXT
*
4478 sizeof(struct LD_LOAD_BALANCE_INFO
));
4479 if (!fusion
->load_balance_info
)
4480 dev_err(&instance
->pdev
->dev
, "Failed to allocate load_balance_info, "
4481 "continuing without Load Balance support\n");
4488 megasas_free_fusion_context(struct megasas_instance
*instance
)
4490 struct fusion_context
*fusion
= instance
->ctrl_context
;
4493 if (fusion
->load_balance_info
) {
4494 if (is_vmalloc_addr(fusion
->load_balance_info
))
4495 vfree(fusion
->load_balance_info
);
4497 free_pages((ulong
)fusion
->load_balance_info
,
4498 fusion
->load_balance_info_pages
);
4501 if (is_vmalloc_addr(fusion
))
4504 free_pages((ulong
)fusion
,
4505 instance
->ctrl_context_pages
);
4509 struct megasas_instance_template megasas_instance_template_fusion
= {
4510 .enable_intr
= megasas_enable_intr_fusion
,
4511 .disable_intr
= megasas_disable_intr_fusion
,
4512 .clear_intr
= megasas_clear_intr_fusion
,
4513 .read_fw_status_reg
= megasas_read_fw_status_reg_fusion
,
4514 .adp_reset
= megasas_adp_reset_fusion
,
4515 .check_reset
= megasas_check_reset_fusion
,
4516 .service_isr
= megasas_isr_fusion
,
4517 .tasklet
= megasas_complete_cmd_dpc_fusion
,
4518 .init_adapter
= megasas_init_adapter_fusion
,
4519 .build_and_issue_cmd
= megasas_build_and_issue_cmd_fusion
,
4520 .issue_dcmd
= megasas_issue_dcmd_fusion
,