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>
51 #include <scsi/scsi.h>
52 #include <scsi/scsi_cmnd.h>
53 #include <scsi/scsi_device.h>
54 #include <scsi/scsi_host.h>
55 #include <scsi/scsi_dbg.h>
57 #include "megaraid_sas_fusion.h"
58 #include "megaraid_sas.h"
60 extern void megasas_free_cmds(struct megasas_instance *instance);
61 extern struct megasas_cmd *megasas_get_cmd(struct megasas_instance
64 megasas_complete_cmd(struct megasas_instance *instance,
65 struct megasas_cmd *cmd, u8 alt_status);
67 wait_and_poll(struct megasas_instance *instance, struct megasas_cmd *cmd,
71 megasas_return_cmd(struct megasas_instance *instance, struct megasas_cmd *cmd);
72 int megasas_alloc_cmds(struct megasas_instance *instance);
74 megasas_clear_intr_fusion(struct megasas_register_set __iomem *regs);
76 megasas_issue_polled(struct megasas_instance *instance,
77 struct megasas_cmd *cmd);
79 megasas_check_and_restore_queue_depth(struct megasas_instance *instance);
81 int megasas_transition_to_ready(struct megasas_instance *instance, int ocr);
82 void megaraid_sas_kill_hba(struct megasas_instance *instance);
84 extern u32 megasas_dbg_lvl;
85 void megasas_sriov_heartbeat_handler(unsigned long instance_addr);
86 int megasas_sriov_start_heartbeat(struct megasas_instance *instance,
88 void megasas_start_timer(struct megasas_instance *instance,
89 struct timer_list *timer,
90 void *fn, unsigned long interval);
91 extern struct megasas_mgmt_info megasas_mgmt_info;
92 extern int resetwaittime;
97 * megasas_enable_intr_fusion - Enables interrupts
98 * @regs: MFI register set
101 megasas_enable_intr_fusion(struct megasas_instance *instance)
103 struct megasas_register_set __iomem *regs;
104 regs = instance->reg_set;
106 instance->mask_interrupts = 0;
107 /* For Thunderbolt/Invader also clear intr on enable */
108 writel(~0, ®s->outbound_intr_status);
109 readl(®s->outbound_intr_status);
111 writel(~MFI_FUSION_ENABLE_INTERRUPT_MASK, &(regs)->outbound_intr_mask);
113 /* Dummy readl to force pci flush */
114 readl(®s->outbound_intr_mask);
118 * megasas_disable_intr_fusion - Disables interrupt
119 * @regs: MFI register set
122 megasas_disable_intr_fusion(struct megasas_instance *instance)
124 u32 mask = 0xFFFFFFFF;
126 struct megasas_register_set __iomem *regs;
127 regs = instance->reg_set;
128 instance->mask_interrupts = 1;
130 writel(mask, ®s->outbound_intr_mask);
131 /* Dummy readl to force pci flush */
132 status = readl(®s->outbound_intr_mask);
136 megasas_clear_intr_fusion(struct megasas_register_set __iomem *regs)
140 * Check if it is our interrupt
142 status = readl(®s->outbound_intr_status);
145 writel(status, ®s->outbound_intr_status);
146 readl(®s->outbound_intr_status);
149 if (!(status & MFI_FUSION_ENABLE_INTERRUPT_MASK))
156 * megasas_get_cmd_fusion - Get a command from the free pool
157 * @instance: Adapter soft state
159 * Returns a free command from the pool
161 struct megasas_cmd_fusion *megasas_get_cmd_fusion(struct megasas_instance
165 struct fusion_context *fusion =
166 (struct fusion_context *)instance->ctrl_context;
167 struct megasas_cmd_fusion *cmd = NULL;
169 spin_lock_irqsave(&fusion->mpt_pool_lock, flags);
171 if (!list_empty(&fusion->cmd_pool)) {
172 cmd = list_entry((&fusion->cmd_pool)->next,
173 struct megasas_cmd_fusion, list);
174 list_del_init(&cmd->list);
176 printk(KERN_ERR "megasas: Command pool (fusion) empty!\n");
179 spin_unlock_irqrestore(&fusion->mpt_pool_lock, flags);
184 * megasas_return_cmd_fusion - Return a cmd to free command pool
185 * @instance: Adapter soft state
186 * @cmd: Command packet to be returned to free command pool
188 inline void megasas_return_cmd_fusion(struct megasas_instance *instance,
189 struct megasas_cmd_fusion *cmd)
192 struct fusion_context *fusion =
193 (struct fusion_context *)instance->ctrl_context;
195 spin_lock_irqsave(&fusion->mpt_pool_lock, flags);
198 cmd->sync_cmd_idx = (u32)ULONG_MAX;
199 memset(cmd->io_request, 0, sizeof(struct MPI2_RAID_SCSI_IO_REQUEST));
200 list_add(&cmd->list, (&fusion->cmd_pool)->next);
202 spin_unlock_irqrestore(&fusion->mpt_pool_lock, flags);
206 * megasas_return_mfi_mpt_pthr - Return a mfi and mpt to free command pool
207 * @instance: Adapter soft state
208 * @cmd_mfi: MFI Command packet to be returned to free command pool
209 * @cmd_mpt: MPT Command packet to be returned to free command pool
211 inline void megasas_return_mfi_mpt_pthr(struct megasas_instance *instance,
212 struct megasas_cmd *cmd_mfi,
213 struct megasas_cmd_fusion *cmd_fusion)
218 * TO DO: optimize this code and use only one lock instead of two
219 * locks being used currently- mpt_pool_lock is acquired
220 * inside mfi_pool_lock
222 spin_lock_irqsave(&instance->mfi_pool_lock, flags);
223 megasas_return_cmd_fusion(instance, cmd_fusion);
224 if (atomic_read(&cmd_mfi->mfi_mpt_pthr) != MFI_MPT_ATTACHED)
225 dev_err(&instance->pdev->dev, "Possible bug from %s %d\n",
227 atomic_set(&cmd_mfi->mfi_mpt_pthr, MFI_MPT_DETACHED);
228 __megasas_return_cmd(instance, cmd_mfi);
229 spin_unlock_irqrestore(&instance->mfi_pool_lock, flags);
233 * megasas_teardown_frame_pool_fusion - Destroy the cmd frame DMA pool
234 * @instance: Adapter soft state
236 static void megasas_teardown_frame_pool_fusion(
237 struct megasas_instance *instance)
240 struct fusion_context *fusion = instance->ctrl_context;
242 u16 max_cmd = instance->max_fw_cmds;
244 struct megasas_cmd_fusion *cmd;
246 if (!fusion->sg_dma_pool || !fusion->sense_dma_pool) {
247 printk(KERN_ERR "megasas: dma pool is null. SG Pool %p, "
248 "sense pool : %p\n", fusion->sg_dma_pool,
249 fusion->sense_dma_pool);
254 * Return all frames to pool
256 for (i = 0; i < max_cmd; i++) {
258 cmd = fusion->cmd_list[i];
261 pci_pool_free(fusion->sg_dma_pool, cmd->sg_frame,
262 cmd->sg_frame_phys_addr);
265 pci_pool_free(fusion->sense_dma_pool, cmd->sense,
266 cmd->sense_phys_addr);
270 * Now destroy the pool itself
272 pci_pool_destroy(fusion->sg_dma_pool);
273 pci_pool_destroy(fusion->sense_dma_pool);
275 fusion->sg_dma_pool = NULL;
276 fusion->sense_dma_pool = NULL;
280 * megasas_free_cmds_fusion - Free all the cmds in the free cmd pool
281 * @instance: Adapter soft state
284 megasas_free_cmds_fusion(struct megasas_instance *instance)
287 struct fusion_context *fusion = instance->ctrl_context;
289 u32 max_cmds, req_sz, reply_sz, io_frames_sz;
292 req_sz = fusion->request_alloc_sz;
293 reply_sz = fusion->reply_alloc_sz;
294 io_frames_sz = fusion->io_frames_alloc_sz;
296 max_cmds = instance->max_fw_cmds;
298 /* Free descriptors and request Frames memory */
299 if (fusion->req_frames_desc)
300 dma_free_coherent(&instance->pdev->dev, req_sz,
301 fusion->req_frames_desc,
302 fusion->req_frames_desc_phys);
304 if (fusion->reply_frames_desc) {
305 pci_pool_free(fusion->reply_frames_desc_pool,
306 fusion->reply_frames_desc,
307 fusion->reply_frames_desc_phys);
308 pci_pool_destroy(fusion->reply_frames_desc_pool);
311 if (fusion->io_request_frames) {
312 pci_pool_free(fusion->io_request_frames_pool,
313 fusion->io_request_frames,
314 fusion->io_request_frames_phys);
315 pci_pool_destroy(fusion->io_request_frames_pool);
318 /* Free the Fusion frame pool */
319 megasas_teardown_frame_pool_fusion(instance);
321 /* Free all the commands in the cmd_list */
322 for (i = 0; i < max_cmds; i++)
323 kfree(fusion->cmd_list[i]);
325 /* Free the cmd_list buffer itself */
326 kfree(fusion->cmd_list);
327 fusion->cmd_list = NULL;
329 INIT_LIST_HEAD(&fusion->cmd_pool);
333 * megasas_create_frame_pool_fusion - Creates DMA pool for cmd frames
334 * @instance: Adapter soft state
337 static int megasas_create_frame_pool_fusion(struct megasas_instance *instance)
341 struct fusion_context *fusion;
342 struct megasas_cmd_fusion *cmd;
343 u32 total_sz_chain_frame;
345 fusion = instance->ctrl_context;
346 max_cmd = instance->max_fw_cmds;
348 total_sz_chain_frame = MEGASAS_MAX_SZ_CHAIN_FRAME;
351 * Use DMA pool facility provided by PCI layer
354 fusion->sg_dma_pool = pci_pool_create("megasas sg pool fusion",
356 total_sz_chain_frame, 4,
358 if (!fusion->sg_dma_pool) {
359 printk(KERN_DEBUG "megasas: failed to setup request pool "
363 fusion->sense_dma_pool = pci_pool_create("megasas sense pool fusion",
365 SCSI_SENSE_BUFFERSIZE, 64, 0);
367 if (!fusion->sense_dma_pool) {
368 printk(KERN_DEBUG "megasas: failed to setup sense pool "
370 pci_pool_destroy(fusion->sg_dma_pool);
371 fusion->sg_dma_pool = NULL;
376 * Allocate and attach a frame to each of the commands in cmd_list
378 for (i = 0; i < max_cmd; i++) {
380 cmd = fusion->cmd_list[i];
382 cmd->sg_frame = pci_pool_alloc(fusion->sg_dma_pool,
384 &cmd->sg_frame_phys_addr);
386 cmd->sense = pci_pool_alloc(fusion->sense_dma_pool,
387 GFP_KERNEL, &cmd->sense_phys_addr);
389 * megasas_teardown_frame_pool_fusion() takes care of freeing
390 * whatever has been allocated
392 if (!cmd->sg_frame || !cmd->sense) {
393 printk(KERN_DEBUG "megasas: pci_pool_alloc failed\n");
394 megasas_teardown_frame_pool_fusion(instance);
402 * megasas_alloc_cmds_fusion - Allocates the command packets
403 * @instance: Adapter soft state
406 * Each frame has a 32-bit field called context. This context is used to get
407 * back the megasas_cmd_fusion from the frame when a frame gets completed
408 * In this driver, the 32 bit values are the indices into an array cmd_list.
409 * This array is used only to look up the megasas_cmd_fusion given the context.
410 * The free commands themselves are maintained in a linked list called cmd_pool.
412 * cmds are formed in the io_request and sg_frame members of the
413 * megasas_cmd_fusion. The context field is used to get a request descriptor
414 * and is used as SMID of the cmd.
415 * SMID value range is from 1 to max_fw_cmds.
418 megasas_alloc_cmds_fusion(struct megasas_instance *instance)
421 u32 max_cmd, io_frames_sz;
422 struct fusion_context *fusion;
423 struct megasas_cmd_fusion *cmd;
424 union MPI2_REPLY_DESCRIPTORS_UNION *reply_desc;
426 dma_addr_t io_req_base_phys;
429 fusion = instance->ctrl_context;
431 max_cmd = instance->max_fw_cmds;
433 fusion->req_frames_desc =
434 dma_alloc_coherent(&instance->pdev->dev,
435 fusion->request_alloc_sz,
436 &fusion->req_frames_desc_phys, GFP_KERNEL);
438 if (!fusion->req_frames_desc) {
439 printk(KERN_ERR "megasas; Could not allocate memory for "
444 count = instance->msix_vectors > 0 ? instance->msix_vectors : 1;
445 fusion->reply_frames_desc_pool =
446 pci_pool_create("reply_frames pool", instance->pdev,
447 fusion->reply_alloc_sz * count, 16, 0);
449 if (!fusion->reply_frames_desc_pool) {
450 printk(KERN_ERR "megasas; Could not allocate memory for "
451 "reply_frame pool\n");
452 goto fail_reply_desc;
455 fusion->reply_frames_desc =
456 pci_pool_alloc(fusion->reply_frames_desc_pool, GFP_KERNEL,
457 &fusion->reply_frames_desc_phys);
458 if (!fusion->reply_frames_desc) {
459 printk(KERN_ERR "megasas; Could not allocate memory for "
460 "reply_frame pool\n");
461 pci_pool_destroy(fusion->reply_frames_desc_pool);
462 goto fail_reply_desc;
465 reply_desc = fusion->reply_frames_desc;
466 for (i = 0; i < fusion->reply_q_depth * count; i++, reply_desc++)
467 reply_desc->Words = ULLONG_MAX;
469 io_frames_sz = fusion->io_frames_alloc_sz;
471 fusion->io_request_frames_pool =
472 pci_pool_create("io_request_frames pool", instance->pdev,
473 fusion->io_frames_alloc_sz, 16, 0);
475 if (!fusion->io_request_frames_pool) {
476 printk(KERN_ERR "megasas: Could not allocate memory for "
477 "io_request_frame pool\n");
481 fusion->io_request_frames =
482 pci_pool_alloc(fusion->io_request_frames_pool, GFP_KERNEL,
483 &fusion->io_request_frames_phys);
484 if (!fusion->io_request_frames) {
485 printk(KERN_ERR "megasas: Could not allocate memory for "
486 "io_request_frames frames\n");
487 pci_pool_destroy(fusion->io_request_frames_pool);
492 * fusion->cmd_list is an array of struct megasas_cmd_fusion pointers.
493 * Allocate the dynamic array first and then allocate individual
496 fusion->cmd_list = kzalloc(sizeof(struct megasas_cmd_fusion *)
497 * max_cmd, GFP_KERNEL);
499 if (!fusion->cmd_list) {
500 printk(KERN_DEBUG "megasas: out of memory. Could not alloc "
501 "memory for cmd_list_fusion\n");
505 max_cmd = instance->max_fw_cmds;
506 for (i = 0; i < max_cmd; i++) {
507 fusion->cmd_list[i] = kmalloc(sizeof(struct megasas_cmd_fusion),
509 if (!fusion->cmd_list[i]) {
510 printk(KERN_ERR "Could not alloc cmd list fusion\n");
512 for (j = 0; j < i; j++)
513 kfree(fusion->cmd_list[j]);
515 kfree(fusion->cmd_list);
516 fusion->cmd_list = NULL;
521 /* The first 256 bytes (SMID 0) is not used. Don't add to cmd list */
522 io_req_base = fusion->io_request_frames +
523 MEGA_MPI2_RAID_DEFAULT_IO_FRAME_SIZE;
524 io_req_base_phys = fusion->io_request_frames_phys +
525 MEGA_MPI2_RAID_DEFAULT_IO_FRAME_SIZE;
528 * Add all the commands to command pool (fusion->cmd_pool)
531 /* SMID 0 is reserved. Set SMID/index from 1 */
532 for (i = 0; i < max_cmd; i++) {
533 cmd = fusion->cmd_list[i];
534 offset = MEGA_MPI2_RAID_DEFAULT_IO_FRAME_SIZE * i;
535 memset(cmd, 0, sizeof(struct megasas_cmd_fusion));
538 cmd->sync_cmd_idx = (u32)ULONG_MAX; /* Set to Invalid */
539 cmd->instance = instance;
541 (struct MPI2_RAID_SCSI_IO_REQUEST *)
542 (io_req_base + offset);
543 memset(cmd->io_request, 0,
544 sizeof(struct MPI2_RAID_SCSI_IO_REQUEST));
545 cmd->io_request_phys_addr = io_req_base_phys + offset;
547 list_add_tail(&cmd->list, &fusion->cmd_pool);
551 * Create a frame pool and assign one frame to each cmd
553 if (megasas_create_frame_pool_fusion(instance)) {
554 printk(KERN_DEBUG "megasas: Error creating frame DMA pool\n");
555 megasas_free_cmds_fusion(instance);
562 pci_pool_free(fusion->io_request_frames_pool, fusion->io_request_frames,
563 fusion->io_request_frames_phys);
564 pci_pool_destroy(fusion->io_request_frames_pool);
566 dma_free_coherent(&instance->pdev->dev, fusion->request_alloc_sz,
567 fusion->reply_frames_desc,
568 fusion->reply_frames_desc_phys);
569 pci_pool_free(fusion->reply_frames_desc_pool,
570 fusion->reply_frames_desc,
571 fusion->reply_frames_desc_phys);
572 pci_pool_destroy(fusion->reply_frames_desc_pool);
575 dma_free_coherent(&instance->pdev->dev, fusion->request_alloc_sz,
576 fusion->req_frames_desc,
577 fusion->req_frames_desc_phys);
583 * wait_and_poll - Issues a polling command
584 * @instance: Adapter soft state
585 * @cmd: Command packet to be issued
587 * For polling, MFI requires the cmd_status to be set to 0xFF before posting.
590 wait_and_poll(struct megasas_instance *instance, struct megasas_cmd *cmd,
594 struct megasas_header *frame_hdr = &cmd->frame->hdr;
595 struct fusion_context *fusion;
597 u32 msecs = seconds * 1000;
599 fusion = instance->ctrl_context;
601 * Wait for cmd_status to change
603 for (i = 0; (i < msecs) && (frame_hdr->cmd_status == 0xff); i += 20) {
608 if (frame_hdr->cmd_status == 0xff) {
610 megasas_return_mfi_mpt_pthr(instance, cmd,
611 cmd->mpt_pthr_cmd_blocked);
619 * megasas_ioc_init_fusion - Initializes the FW
620 * @instance: Adapter soft state
622 * Issues the IOC Init cmd
625 megasas_ioc_init_fusion(struct megasas_instance *instance)
627 struct megasas_init_frame *init_frame;
628 struct MPI2_IOC_INIT_REQUEST *IOCInitMessage;
629 dma_addr_t ioc_init_handle;
630 struct megasas_cmd *cmd;
632 struct fusion_context *fusion;
633 union MEGASAS_REQUEST_DESCRIPTOR_UNION req_desc;
635 struct megasas_header *frame_hdr;
637 fusion = instance->ctrl_context;
639 cmd = megasas_get_cmd(instance);
642 printk(KERN_ERR "Could not allocate cmd for INIT Frame\n");
648 dma_alloc_coherent(&instance->pdev->dev,
649 sizeof(struct MPI2_IOC_INIT_REQUEST),
650 &ioc_init_handle, GFP_KERNEL);
652 if (!IOCInitMessage) {
653 printk(KERN_ERR "Could not allocate memory for "
659 memset(IOCInitMessage, 0, sizeof(struct MPI2_IOC_INIT_REQUEST));
661 IOCInitMessage->Function = MPI2_FUNCTION_IOC_INIT;
662 IOCInitMessage->WhoInit = MPI2_WHOINIT_HOST_DRIVER;
663 IOCInitMessage->MsgVersion = cpu_to_le16(MPI2_VERSION);
664 IOCInitMessage->HeaderVersion = cpu_to_le16(MPI2_HEADER_VERSION);
665 IOCInitMessage->SystemRequestFrameSize = cpu_to_le16(MEGA_MPI2_RAID_DEFAULT_IO_FRAME_SIZE / 4);
667 IOCInitMessage->ReplyDescriptorPostQueueDepth = cpu_to_le16(fusion->reply_q_depth);
668 IOCInitMessage->ReplyDescriptorPostQueueAddress = cpu_to_le64(fusion->reply_frames_desc_phys);
669 IOCInitMessage->SystemRequestFrameBaseAddress = cpu_to_le64(fusion->io_request_frames_phys);
670 IOCInitMessage->HostMSIxVectors = instance->msix_vectors;
671 init_frame = (struct megasas_init_frame *)cmd->frame;
672 memset(init_frame, 0, MEGAMFI_FRAME_SIZE);
674 frame_hdr = &cmd->frame->hdr;
675 frame_hdr->cmd_status = 0xFF;
676 frame_hdr->flags |= cpu_to_le16(MFI_FRAME_DONT_POST_IN_REPLY_QUEUE);
678 init_frame->cmd = MFI_CMD_INIT;
679 init_frame->cmd_status = 0xFF;
681 /* driver support Extended MSIX */
682 if ((instance->pdev->device == PCI_DEVICE_ID_LSI_INVADER) ||
683 (instance->pdev->device == PCI_DEVICE_ID_LSI_FURY))
684 init_frame->driver_operations.
685 mfi_capabilities.support_additional_msix = 1;
686 /* driver supports HA / Remote LUN over Fast Path interface */
687 init_frame->driver_operations.mfi_capabilities.support_fp_remote_lun
689 init_frame->driver_operations.mfi_capabilities.support_max_255lds
691 init_frame->driver_operations.mfi_capabilities.support_ndrive_r1_lb
693 init_frame->driver_operations.mfi_capabilities.security_protocol_cmds_fw
695 /* Convert capability to LE32 */
696 cpu_to_le32s((u32 *)&init_frame->driver_operations.mfi_capabilities);
698 init_frame->queue_info_new_phys_addr_hi =
699 cpu_to_le32(upper_32_bits(ioc_init_handle));
700 init_frame->queue_info_new_phys_addr_lo =
701 cpu_to_le32(lower_32_bits(ioc_init_handle));
702 init_frame->data_xfer_len = cpu_to_le32(sizeof(struct MPI2_IOC_INIT_REQUEST));
704 req_desc.u.low = cpu_to_le32(lower_32_bits(cmd->frame_phys_addr));
705 req_desc.u.high = cpu_to_le32(upper_32_bits(cmd->frame_phys_addr));
706 req_desc.MFAIo.RequestFlags =
707 (MEGASAS_REQ_DESCRIPT_FLAGS_MFA <<
708 MEGASAS_REQ_DESCRIPT_FLAGS_TYPE_SHIFT);
711 * disable the intr before firing the init frame
713 instance->instancet->disable_intr(instance);
715 for (i = 0; i < (10 * 1000); i += 20) {
716 if (readl(&instance->reg_set->doorbell) & 1)
722 instance->instancet->fire_cmd(instance, req_desc.u.low,
723 req_desc.u.high, instance->reg_set);
725 wait_and_poll(instance, cmd, MFI_POLL_TIMEOUT_SECS);
727 frame_hdr = &cmd->frame->hdr;
728 if (frame_hdr->cmd_status != 0) {
732 printk(KERN_ERR "megasas:IOC Init cmd success\n");
737 megasas_return_cmd(instance, cmd);
739 dma_free_coherent(&instance->pdev->dev,
740 sizeof(struct MPI2_IOC_INIT_REQUEST),
741 IOCInitMessage, ioc_init_handle);
747 * megasas_get_ld_map_info - Returns FW's ld_map structure
748 * @instance: Adapter soft state
749 * @pend: Pend the command or not
750 * Issues an internal command (DCMD) to get the FW's controller PD
751 * list structure. This information is mainly used to find out SYSTEM
752 * supported by the FW.
753 * dcmd.mbox value setting for MR_DCMD_LD_MAP_GET_INFO
754 * dcmd.mbox.b[0] - number of LDs being sync'd
755 * dcmd.mbox.b[1] - 0 - complete command immediately.
756 * - 1 - pend till config change
757 * dcmd.mbox.b[2] - 0 - supports max 64 lds and uses legacy MR_FW_RAID_MAP
758 * - 1 - supports max MAX_LOGICAL_DRIVES_EXT lds and
759 * uses extended struct MR_FW_RAID_MAP_EXT
762 megasas_get_ld_map_info(struct megasas_instance *instance)
765 struct megasas_cmd *cmd;
766 struct megasas_dcmd_frame *dcmd;
770 struct fusion_context *fusion;
772 cmd = megasas_get_cmd(instance);
775 printk(KERN_DEBUG "megasas: Failed to get cmd for map info.\n");
779 fusion = instance->ctrl_context;
782 megasas_return_cmd(instance, cmd);
786 dcmd = &cmd->frame->dcmd;
788 size_map_info = fusion->current_map_sz;
790 ci = (void *) fusion->ld_map[(instance->map_id & 1)];
791 ci_h = fusion->ld_map_phys[(instance->map_id & 1)];
794 printk(KERN_DEBUG "Failed to alloc mem for ld_map_info\n");
795 megasas_return_cmd(instance, cmd);
799 memset(ci, 0, fusion->max_map_sz);
800 memset(dcmd->mbox.b, 0, MFI_MBOX_SIZE);
802 dev_dbg(&instance->pdev->dev,
803 "%s sending MR_DCMD_LD_MAP_GET_INFO with size %d\n",
804 __func__, cpu_to_le32(size_map_info));
806 dcmd->cmd = MFI_CMD_DCMD;
807 dcmd->cmd_status = 0xFF;
809 dcmd->flags = cpu_to_le16(MFI_FRAME_DIR_READ);
812 dcmd->data_xfer_len = cpu_to_le32(size_map_info);
813 dcmd->opcode = cpu_to_le32(MR_DCMD_LD_MAP_GET_INFO);
814 dcmd->sgl.sge32[0].phys_addr = cpu_to_le32(ci_h);
815 dcmd->sgl.sge32[0].length = cpu_to_le32(size_map_info);
817 if (instance->ctrl_context && !instance->mask_interrupts)
818 ret = megasas_issue_blocked_cmd(instance, cmd,
819 MEGASAS_BLOCKED_CMD_TIMEOUT);
821 ret = megasas_issue_polled(instance, cmd);
823 if (instance->ctrl_context && cmd->mpt_pthr_cmd_blocked)
824 megasas_return_mfi_mpt_pthr(instance, cmd,
825 cmd->mpt_pthr_cmd_blocked);
827 megasas_return_cmd(instance, cmd);
833 megasas_get_map_info(struct megasas_instance *instance)
835 struct fusion_context *fusion = instance->ctrl_context;
837 fusion->fast_path_io = 0;
838 if (!megasas_get_ld_map_info(instance)) {
839 if (MR_ValidateMapInfo(instance)) {
840 fusion->fast_path_io = 1;
848 * megasas_sync_map_info - Returns FW's ld_map structure
849 * @instance: Adapter soft state
851 * Issues an internal command (DCMD) to get the FW's controller PD
852 * list structure. This information is mainly used to find out SYSTEM
853 * supported by the FW.
856 megasas_sync_map_info(struct megasas_instance *instance)
859 struct megasas_cmd *cmd;
860 struct megasas_dcmd_frame *dcmd;
861 u32 size_sync_info, num_lds;
862 struct fusion_context *fusion;
863 struct MR_LD_TARGET_SYNC *ci = NULL;
864 struct MR_DRV_RAID_MAP_ALL *map;
865 struct MR_LD_RAID *raid;
866 struct MR_LD_TARGET_SYNC *ld_sync;
870 cmd = megasas_get_cmd(instance);
873 printk(KERN_DEBUG "megasas: Failed to get cmd for sync"
878 fusion = instance->ctrl_context;
881 megasas_return_cmd(instance, cmd);
885 map = fusion->ld_drv_map[instance->map_id & 1];
887 num_lds = le16_to_cpu(map->raidMap.ldCount);
889 dcmd = &cmd->frame->dcmd;
891 size_sync_info = sizeof(struct MR_LD_TARGET_SYNC) *num_lds;
893 memset(dcmd->mbox.b, 0, MFI_MBOX_SIZE);
895 ci = (struct MR_LD_TARGET_SYNC *)
896 fusion->ld_map[(instance->map_id - 1) & 1];
897 memset(ci, 0, fusion->max_map_sz);
899 ci_h = fusion->ld_map_phys[(instance->map_id - 1) & 1];
901 ld_sync = (struct MR_LD_TARGET_SYNC *)ci;
903 for (i = 0; i < num_lds; i++, ld_sync++) {
904 raid = MR_LdRaidGet(i, map);
905 ld_sync->targetId = MR_GetLDTgtId(i, map);
906 ld_sync->seqNum = raid->seqNum;
909 size_map_info = fusion->current_map_sz;
911 dcmd->cmd = MFI_CMD_DCMD;
912 dcmd->cmd_status = 0xFF;
914 dcmd->flags = cpu_to_le16(MFI_FRAME_DIR_WRITE);
917 dcmd->data_xfer_len = cpu_to_le32(size_map_info);
918 dcmd->mbox.b[0] = num_lds;
919 dcmd->mbox.b[1] = MEGASAS_DCMD_MBOX_PEND_FLAG;
920 dcmd->opcode = cpu_to_le32(MR_DCMD_LD_MAP_GET_INFO);
921 dcmd->sgl.sge32[0].phys_addr = cpu_to_le32(ci_h);
922 dcmd->sgl.sge32[0].length = cpu_to_le32(size_map_info);
924 instance->map_update_cmd = cmd;
926 instance->instancet->issue_dcmd(instance, cmd);
932 * meagasas_display_intel_branding - Display branding string
933 * @instance: per adapter object
938 megasas_display_intel_branding(struct megasas_instance *instance)
940 if (instance->pdev->subsystem_vendor != PCI_VENDOR_ID_INTEL)
943 switch (instance->pdev->device) {
944 case PCI_DEVICE_ID_LSI_INVADER:
945 switch (instance->pdev->subsystem_device) {
946 case MEGARAID_INTEL_RS3DC080_SSDID:
947 dev_info(&instance->pdev->dev, "scsi host %d: %s\n",
948 instance->host->host_no,
949 MEGARAID_INTEL_RS3DC080_BRANDING);
951 case MEGARAID_INTEL_RS3DC040_SSDID:
952 dev_info(&instance->pdev->dev, "scsi host %d: %s\n",
953 instance->host->host_no,
954 MEGARAID_INTEL_RS3DC040_BRANDING);
956 case MEGARAID_INTEL_RS3SC008_SSDID:
957 dev_info(&instance->pdev->dev, "scsi host %d: %s\n",
958 instance->host->host_no,
959 MEGARAID_INTEL_RS3SC008_BRANDING);
961 case MEGARAID_INTEL_RS3MC044_SSDID:
962 dev_info(&instance->pdev->dev, "scsi host %d: %s\n",
963 instance->host->host_no,
964 MEGARAID_INTEL_RS3MC044_BRANDING);
970 case PCI_DEVICE_ID_LSI_FURY:
971 switch (instance->pdev->subsystem_device) {
972 case MEGARAID_INTEL_RS3WC080_SSDID:
973 dev_info(&instance->pdev->dev, "scsi host %d: %s\n",
974 instance->host->host_no,
975 MEGARAID_INTEL_RS3WC080_BRANDING);
977 case MEGARAID_INTEL_RS3WC040_SSDID:
978 dev_info(&instance->pdev->dev, "scsi host %d: %s\n",
979 instance->host->host_no,
980 MEGARAID_INTEL_RS3WC040_BRANDING);
992 * megasas_init_adapter_fusion - Initializes the FW
993 * @instance: Adapter soft state
995 * This is the main function for initializing firmware.
998 megasas_init_adapter_fusion(struct megasas_instance *instance)
1000 struct megasas_register_set __iomem *reg_set;
1001 struct fusion_context *fusion;
1005 fusion = instance->ctrl_context;
1007 reg_set = instance->reg_set;
1010 * Get various operational parameters from status register
1012 instance->max_fw_cmds =
1013 instance->instancet->read_fw_status_reg(reg_set) & 0x00FFFF;
1014 instance->max_fw_cmds = min(instance->max_fw_cmds, (u16)1008);
1017 * Reduce the max supported cmds by 1. This is to ensure that the
1018 * reply_q_sz (1 more than the max cmd that driver may send)
1019 * does not exceed max cmds that the FW can support
1021 instance->max_fw_cmds = instance->max_fw_cmds-1;
1024 * Only Driver's internal DCMDs and IOCTL DCMDs needs to have MFI frames
1026 instance->max_mfi_cmds =
1027 MEGASAS_FUSION_INTERNAL_CMDS + MEGASAS_FUSION_IOCTL_CMDS;
1029 max_cmd = instance->max_fw_cmds;
1031 fusion->reply_q_depth = 2 * (((max_cmd + 1 + 15)/16)*16);
1033 fusion->request_alloc_sz =
1034 sizeof(union MEGASAS_REQUEST_DESCRIPTOR_UNION) *max_cmd;
1035 fusion->reply_alloc_sz = sizeof(union MPI2_REPLY_DESCRIPTORS_UNION)
1036 *(fusion->reply_q_depth);
1037 fusion->io_frames_alloc_sz = MEGA_MPI2_RAID_DEFAULT_IO_FRAME_SIZE +
1038 (MEGA_MPI2_RAID_DEFAULT_IO_FRAME_SIZE *
1039 (max_cmd + 1)); /* Extra 1 for SMID 0 */
1041 fusion->max_sge_in_main_msg =
1042 (MEGA_MPI2_RAID_DEFAULT_IO_FRAME_SIZE -
1043 offsetof(struct MPI2_RAID_SCSI_IO_REQUEST, SGL))/16;
1045 fusion->max_sge_in_chain =
1046 MEGASAS_MAX_SZ_CHAIN_FRAME / sizeof(union MPI2_SGE_IO_UNION);
1048 instance->max_num_sge = rounddown_pow_of_two(
1049 fusion->max_sge_in_main_msg + fusion->max_sge_in_chain - 2);
1051 /* Used for pass thru MFI frame (DCMD) */
1052 fusion->chain_offset_mfi_pthru =
1053 offsetof(struct MPI2_RAID_SCSI_IO_REQUEST, SGL)/16;
1055 fusion->chain_offset_io_request =
1056 (MEGA_MPI2_RAID_DEFAULT_IO_FRAME_SIZE -
1057 sizeof(union MPI2_SGE_IO_UNION))/16;
1059 count = instance->msix_vectors > 0 ? instance->msix_vectors : 1;
1060 for (i = 0 ; i < count; i++)
1061 fusion->last_reply_idx[i] = 0;
1064 * Allocate memory for descriptors
1065 * Create a pool of commands
1067 if (megasas_alloc_cmds(instance))
1068 goto fail_alloc_mfi_cmds;
1069 if (megasas_alloc_cmds_fusion(instance))
1070 goto fail_alloc_cmds;
1072 if (megasas_ioc_init_fusion(instance))
1075 megasas_display_intel_branding(instance);
1076 if (megasas_get_ctrl_info(instance)) {
1077 dev_err(&instance->pdev->dev,
1078 "Could not get controller info. Fail from %s %d\n",
1079 __func__, __LINE__);
1083 instance->flag_ieee = 1;
1084 fusion->fast_path_io = 0;
1086 fusion->drv_map_pages = get_order(fusion->drv_map_sz);
1087 for (i = 0; i < 2; i++) {
1088 fusion->ld_map[i] = NULL;
1089 fusion->ld_drv_map[i] = (void *)__get_free_pages(GFP_KERNEL,
1090 fusion->drv_map_pages);
1091 if (!fusion->ld_drv_map[i]) {
1092 dev_err(&instance->pdev->dev, "Could not allocate "
1093 "memory for local map info for %d pages\n",
1094 fusion->drv_map_pages);
1096 free_pages((ulong)fusion->ld_drv_map[0],
1097 fusion->drv_map_pages);
1100 memset(fusion->ld_drv_map[i], 0,
1101 ((1 << PAGE_SHIFT) << fusion->drv_map_pages));
1104 for (i = 0; i < 2; i++) {
1105 fusion->ld_map[i] = dma_alloc_coherent(&instance->pdev->dev,
1107 &fusion->ld_map_phys[i],
1109 if (!fusion->ld_map[i]) {
1110 printk(KERN_ERR "megasas: Could not allocate memory "
1116 if (!megasas_get_map_info(instance))
1117 megasas_sync_map_info(instance);
1123 dma_free_coherent(&instance->pdev->dev, fusion->max_map_sz,
1124 fusion->ld_map[0], fusion->ld_map_phys[0]);
1126 megasas_free_cmds_fusion(instance);
1128 megasas_free_cmds(instance);
1129 fail_alloc_mfi_cmds:
1134 * megasas_fire_cmd_fusion - Sends command to the FW
1135 * @frame_phys_addr : Physical address of cmd
1136 * @frame_count : Number of frames for the command
1137 * @regs : MFI register set
1140 megasas_fire_cmd_fusion(struct megasas_instance *instance,
1141 dma_addr_t req_desc_lo,
1143 struct megasas_register_set __iomem *regs)
1145 #if defined(writeq) && defined(CONFIG_64BIT)
1146 u64 req_data = (((u64)le32_to_cpu(req_desc_hi) << 32) |
1147 le32_to_cpu(req_desc_lo));
1149 writeq(req_data, &(regs)->inbound_low_queue_port);
1151 unsigned long flags;
1153 spin_lock_irqsave(&instance->hba_lock, flags);
1155 writel(le32_to_cpu(req_desc_lo), &(regs)->inbound_low_queue_port);
1156 writel(le32_to_cpu(req_desc_hi), &(regs)->inbound_high_queue_port);
1157 spin_unlock_irqrestore(&instance->hba_lock, flags);
1162 * map_cmd_status - Maps FW cmd status to OS cmd status
1163 * @cmd : Pointer to cmd
1164 * @status : status of cmd returned by FW
1165 * @ext_status : ext status of cmd returned by FW
1169 map_cmd_status(struct megasas_cmd_fusion *cmd, u8 status, u8 ext_status)
1175 cmd->scmd->result = DID_OK << 16;
1178 case MFI_STAT_SCSI_IO_FAILED:
1179 case MFI_STAT_LD_INIT_IN_PROGRESS:
1180 cmd->scmd->result = (DID_ERROR << 16) | ext_status;
1183 case MFI_STAT_SCSI_DONE_WITH_ERROR:
1185 cmd->scmd->result = (DID_OK << 16) | ext_status;
1186 if (ext_status == SAM_STAT_CHECK_CONDITION) {
1187 memset(cmd->scmd->sense_buffer, 0,
1188 SCSI_SENSE_BUFFERSIZE);
1189 memcpy(cmd->scmd->sense_buffer, cmd->sense,
1190 SCSI_SENSE_BUFFERSIZE);
1191 cmd->scmd->result |= DRIVER_SENSE << 24;
1195 case MFI_STAT_LD_OFFLINE:
1196 case MFI_STAT_DEVICE_NOT_FOUND:
1197 cmd->scmd->result = DID_BAD_TARGET << 16;
1199 case MFI_STAT_CONFIG_SEQ_MISMATCH:
1200 cmd->scmd->result = DID_IMM_RETRY << 16;
1203 printk(KERN_DEBUG "megasas: FW status %#x\n", status);
1204 cmd->scmd->result = DID_ERROR << 16;
1210 * megasas_make_sgl_fusion - Prepares 32-bit SGL
1211 * @instance: Adapter soft state
1212 * @scp: SCSI command from the mid-layer
1213 * @sgl_ptr: SGL to be filled in
1214 * @cmd: cmd we are working on
1216 * If successful, this function returns the number of SG elements.
1219 megasas_make_sgl_fusion(struct megasas_instance *instance,
1220 struct scsi_cmnd *scp,
1221 struct MPI25_IEEE_SGE_CHAIN64 *sgl_ptr,
1222 struct megasas_cmd_fusion *cmd)
1224 int i, sg_processed, sge_count;
1225 struct scatterlist *os_sgl;
1226 struct fusion_context *fusion;
1228 fusion = instance->ctrl_context;
1230 if ((instance->pdev->device == PCI_DEVICE_ID_LSI_INVADER) ||
1231 (instance->pdev->device == PCI_DEVICE_ID_LSI_FURY)) {
1232 struct MPI25_IEEE_SGE_CHAIN64 *sgl_ptr_end = sgl_ptr;
1233 sgl_ptr_end += fusion->max_sge_in_main_msg - 1;
1234 sgl_ptr_end->Flags = 0;
1237 sge_count = scsi_dma_map(scp);
1239 BUG_ON(sge_count < 0);
1241 if (sge_count > instance->max_num_sge || !sge_count)
1244 scsi_for_each_sg(scp, os_sgl, sge_count, i) {
1245 sgl_ptr->Length = cpu_to_le32(sg_dma_len(os_sgl));
1246 sgl_ptr->Address = cpu_to_le64(sg_dma_address(os_sgl));
1248 if ((instance->pdev->device == PCI_DEVICE_ID_LSI_INVADER) ||
1249 (instance->pdev->device == PCI_DEVICE_ID_LSI_FURY)) {
1250 if (i == sge_count - 1)
1251 sgl_ptr->Flags = IEEE_SGE_FLAGS_END_OF_LIST;
1255 sg_processed = i + 1;
1257 if ((sg_processed == (fusion->max_sge_in_main_msg - 1)) &&
1258 (sge_count > fusion->max_sge_in_main_msg)) {
1260 struct MPI25_IEEE_SGE_CHAIN64 *sg_chain;
1261 if ((instance->pdev->device ==
1262 PCI_DEVICE_ID_LSI_INVADER) ||
1263 (instance->pdev->device ==
1264 PCI_DEVICE_ID_LSI_FURY)) {
1265 if ((le16_to_cpu(cmd->io_request->IoFlags) &
1266 MPI25_SAS_DEVICE0_FLAGS_ENABLED_FAST_PATH) !=
1267 MPI25_SAS_DEVICE0_FLAGS_ENABLED_FAST_PATH)
1268 cmd->io_request->ChainOffset =
1270 chain_offset_io_request;
1272 cmd->io_request->ChainOffset = 0;
1274 cmd->io_request->ChainOffset =
1275 fusion->chain_offset_io_request;
1278 /* Prepare chain element */
1279 sg_chain->NextChainOffset = 0;
1280 if ((instance->pdev->device ==
1281 PCI_DEVICE_ID_LSI_INVADER) ||
1282 (instance->pdev->device ==
1283 PCI_DEVICE_ID_LSI_FURY))
1284 sg_chain->Flags = IEEE_SGE_FLAGS_CHAIN_ELEMENT;
1287 (IEEE_SGE_FLAGS_CHAIN_ELEMENT |
1288 MPI2_IEEE_SGE_FLAGS_IOCPLBNTA_ADDR);
1289 sg_chain->Length = cpu_to_le32((sizeof(union MPI2_SGE_IO_UNION) * (sge_count - sg_processed)));
1290 sg_chain->Address = cpu_to_le64(cmd->sg_frame_phys_addr);
1293 (struct MPI25_IEEE_SGE_CHAIN64 *)cmd->sg_frame;
1294 memset(sgl_ptr, 0, MEGASAS_MAX_SZ_CHAIN_FRAME);
1302 * megasas_set_pd_lba - Sets PD LBA
1304 * @cdb_len: cdb length
1305 * @start_blk: Start block of IO
1307 * Used to set the PD LBA in CDB for FP IOs
1310 megasas_set_pd_lba(struct MPI2_RAID_SCSI_IO_REQUEST *io_request, u8 cdb_len,
1311 struct IO_REQUEST_INFO *io_info, struct scsi_cmnd *scp,
1312 struct MR_DRV_RAID_MAP_ALL *local_map_ptr, u32 ref_tag)
1314 struct MR_LD_RAID *raid;
1316 u64 start_blk = io_info->pdBlock;
1317 u8 *cdb = io_request->CDB.CDB32;
1318 u32 num_blocks = io_info->numBlocks;
1319 u8 opcode = 0, flagvals = 0, groupnum = 0, control = 0;
1321 /* Check if T10 PI (DIF) is enabled for this LD */
1322 ld = MR_TargetIdToLdGet(io_info->ldTgtId, local_map_ptr);
1323 raid = MR_LdRaidGet(ld, local_map_ptr);
1324 if (raid->capability.ldPiMode == MR_PROT_INFO_TYPE_CONTROLLER) {
1325 memset(cdb, 0, sizeof(io_request->CDB.CDB32));
1326 cdb[0] = MEGASAS_SCSI_VARIABLE_LENGTH_CMD;
1327 cdb[7] = MEGASAS_SCSI_ADDL_CDB_LEN;
1329 if (scp->sc_data_direction == PCI_DMA_FROMDEVICE)
1330 cdb[9] = MEGASAS_SCSI_SERVICE_ACTION_READ32;
1332 cdb[9] = MEGASAS_SCSI_SERVICE_ACTION_WRITE32;
1333 cdb[10] = MEGASAS_RD_WR_PROTECT_CHECK_ALL;
1336 cdb[12] = (u8)((start_blk >> 56) & 0xff);
1337 cdb[13] = (u8)((start_blk >> 48) & 0xff);
1338 cdb[14] = (u8)((start_blk >> 40) & 0xff);
1339 cdb[15] = (u8)((start_blk >> 32) & 0xff);
1340 cdb[16] = (u8)((start_blk >> 24) & 0xff);
1341 cdb[17] = (u8)((start_blk >> 16) & 0xff);
1342 cdb[18] = (u8)((start_blk >> 8) & 0xff);
1343 cdb[19] = (u8)(start_blk & 0xff);
1345 /* Logical block reference tag */
1346 io_request->CDB.EEDP32.PrimaryReferenceTag =
1347 cpu_to_be32(ref_tag);
1348 io_request->CDB.EEDP32.PrimaryApplicationTagMask = cpu_to_be16(0xffff);
1349 io_request->IoFlags = cpu_to_le16(32); /* Specify 32-byte cdb */
1351 /* Transfer length */
1352 cdb[28] = (u8)((num_blocks >> 24) & 0xff);
1353 cdb[29] = (u8)((num_blocks >> 16) & 0xff);
1354 cdb[30] = (u8)((num_blocks >> 8) & 0xff);
1355 cdb[31] = (u8)(num_blocks & 0xff);
1357 /* set SCSI IO EEDPFlags */
1358 if (scp->sc_data_direction == PCI_DMA_FROMDEVICE) {
1359 io_request->EEDPFlags = cpu_to_le16(
1360 MPI2_SCSIIO_EEDPFLAGS_INC_PRI_REFTAG |
1361 MPI2_SCSIIO_EEDPFLAGS_CHECK_REFTAG |
1362 MPI2_SCSIIO_EEDPFLAGS_CHECK_REMOVE_OP |
1363 MPI2_SCSIIO_EEDPFLAGS_CHECK_APPTAG |
1364 MPI2_SCSIIO_EEDPFLAGS_CHECK_GUARD);
1366 io_request->EEDPFlags = cpu_to_le16(
1367 MPI2_SCSIIO_EEDPFLAGS_INC_PRI_REFTAG |
1368 MPI2_SCSIIO_EEDPFLAGS_INSERT_OP);
1370 io_request->Control |= cpu_to_le32((0x4 << 26));
1371 io_request->EEDPBlockSize = cpu_to_le32(scp->device->sector_size);
1373 /* Some drives don't support 16/12 byte CDB's, convert to 10 */
1374 if (((cdb_len == 12) || (cdb_len == 16)) &&
1375 (start_blk <= 0xffffffff)) {
1376 if (cdb_len == 16) {
1377 opcode = cdb[0] == READ_16 ? READ_10 : WRITE_10;
1382 opcode = cdb[0] == READ_12 ? READ_10 : WRITE_10;
1388 memset(cdb, 0, sizeof(io_request->CDB.CDB32));
1395 /* Transfer length */
1396 cdb[8] = (u8)(num_blocks & 0xff);
1397 cdb[7] = (u8)((num_blocks >> 8) & 0xff);
1399 io_request->IoFlags = cpu_to_le16(10); /* Specify 10-byte cdb */
1401 } else if ((cdb_len < 16) && (start_blk > 0xffffffff)) {
1402 /* Convert to 16 byte CDB for large LBA's */
1405 opcode = cdb[0] == READ_6 ? READ_16 : WRITE_16;
1410 cdb[0] == READ_10 ? READ_16 : WRITE_16;
1417 cdb[0] == READ_12 ? READ_16 : WRITE_16;
1424 memset(cdb, 0, sizeof(io_request->CDB.CDB32));
1431 /* Transfer length */
1432 cdb[13] = (u8)(num_blocks & 0xff);
1433 cdb[12] = (u8)((num_blocks >> 8) & 0xff);
1434 cdb[11] = (u8)((num_blocks >> 16) & 0xff);
1435 cdb[10] = (u8)((num_blocks >> 24) & 0xff);
1437 io_request->IoFlags = cpu_to_le16(16); /* Specify 16-byte cdb */
1441 /* Normal case, just load LBA here */
1445 u8 val = cdb[1] & 0xE0;
1446 cdb[3] = (u8)(start_blk & 0xff);
1447 cdb[2] = (u8)((start_blk >> 8) & 0xff);
1448 cdb[1] = val | ((u8)(start_blk >> 16) & 0x1f);
1452 cdb[5] = (u8)(start_blk & 0xff);
1453 cdb[4] = (u8)((start_blk >> 8) & 0xff);
1454 cdb[3] = (u8)((start_blk >> 16) & 0xff);
1455 cdb[2] = (u8)((start_blk >> 24) & 0xff);
1458 cdb[5] = (u8)(start_blk & 0xff);
1459 cdb[4] = (u8)((start_blk >> 8) & 0xff);
1460 cdb[3] = (u8)((start_blk >> 16) & 0xff);
1461 cdb[2] = (u8)((start_blk >> 24) & 0xff);
1464 cdb[9] = (u8)(start_blk & 0xff);
1465 cdb[8] = (u8)((start_blk >> 8) & 0xff);
1466 cdb[7] = (u8)((start_blk >> 16) & 0xff);
1467 cdb[6] = (u8)((start_blk >> 24) & 0xff);
1468 cdb[5] = (u8)((start_blk >> 32) & 0xff);
1469 cdb[4] = (u8)((start_blk >> 40) & 0xff);
1470 cdb[3] = (u8)((start_blk >> 48) & 0xff);
1471 cdb[2] = (u8)((start_blk >> 56) & 0xff);
1478 * megasas_build_ldio_fusion - Prepares IOs to devices
1479 * @instance: Adapter soft state
1480 * @scp: SCSI command
1481 * @cmd: Command to be prepared
1483 * Prepares the io_request and chain elements (sg_frame) for IO
1484 * The IO can be for PD (Fast Path) or LD
1487 megasas_build_ldio_fusion(struct megasas_instance *instance,
1488 struct scsi_cmnd *scp,
1489 struct megasas_cmd_fusion *cmd)
1492 u32 start_lba_lo, start_lba_hi, device_id, datalength = 0;
1493 struct MPI2_RAID_SCSI_IO_REQUEST *io_request;
1494 union MEGASAS_REQUEST_DESCRIPTOR_UNION *req_desc;
1495 struct IO_REQUEST_INFO io_info;
1496 struct fusion_context *fusion;
1497 struct MR_DRV_RAID_MAP_ALL *local_map_ptr;
1500 device_id = MEGASAS_DEV_INDEX(scp);
1502 fusion = instance->ctrl_context;
1504 io_request = cmd->io_request;
1505 io_request->RaidContext.VirtualDiskTgtId = cpu_to_le16(device_id);
1506 io_request->RaidContext.status = 0;
1507 io_request->RaidContext.exStatus = 0;
1509 req_desc = (union MEGASAS_REQUEST_DESCRIPTOR_UNION *)cmd->request_desc;
1516 * 6-byte READ(0x08) or WRITE(0x0A) cdb
1518 if (scp->cmd_len == 6) {
1519 datalength = (u32) scp->cmnd[4];
1520 start_lba_lo = ((u32) scp->cmnd[1] << 16) |
1521 ((u32) scp->cmnd[2] << 8) | (u32) scp->cmnd[3];
1523 start_lba_lo &= 0x1FFFFF;
1527 * 10-byte READ(0x28) or WRITE(0x2A) cdb
1529 else if (scp->cmd_len == 10) {
1530 datalength = (u32) scp->cmnd[8] |
1531 ((u32) scp->cmnd[7] << 8);
1532 start_lba_lo = ((u32) scp->cmnd[2] << 24) |
1533 ((u32) scp->cmnd[3] << 16) |
1534 ((u32) scp->cmnd[4] << 8) | (u32) scp->cmnd[5];
1538 * 12-byte READ(0xA8) or WRITE(0xAA) cdb
1540 else if (scp->cmd_len == 12) {
1541 datalength = ((u32) scp->cmnd[6] << 24) |
1542 ((u32) scp->cmnd[7] << 16) |
1543 ((u32) scp->cmnd[8] << 8) | (u32) scp->cmnd[9];
1544 start_lba_lo = ((u32) scp->cmnd[2] << 24) |
1545 ((u32) scp->cmnd[3] << 16) |
1546 ((u32) scp->cmnd[4] << 8) | (u32) scp->cmnd[5];
1550 * 16-byte READ(0x88) or WRITE(0x8A) cdb
1552 else if (scp->cmd_len == 16) {
1553 datalength = ((u32) scp->cmnd[10] << 24) |
1554 ((u32) scp->cmnd[11] << 16) |
1555 ((u32) scp->cmnd[12] << 8) | (u32) scp->cmnd[13];
1556 start_lba_lo = ((u32) scp->cmnd[6] << 24) |
1557 ((u32) scp->cmnd[7] << 16) |
1558 ((u32) scp->cmnd[8] << 8) | (u32) scp->cmnd[9];
1560 start_lba_hi = ((u32) scp->cmnd[2] << 24) |
1561 ((u32) scp->cmnd[3] << 16) |
1562 ((u32) scp->cmnd[4] << 8) | (u32) scp->cmnd[5];
1565 memset(&io_info, 0, sizeof(struct IO_REQUEST_INFO));
1566 io_info.ldStartBlock = ((u64)start_lba_hi << 32) | start_lba_lo;
1567 io_info.numBlocks = datalength;
1568 io_info.ldTgtId = device_id;
1569 io_request->DataLength = cpu_to_le32(scsi_bufflen(scp));
1571 if (scp->sc_data_direction == PCI_DMA_FROMDEVICE)
1574 local_map_ptr = fusion->ld_drv_map[(instance->map_id & 1)];
1576 if ((MR_TargetIdToLdGet(device_id, local_map_ptr) >=
1577 instance->fw_supported_vd_count) || (!fusion->fast_path_io)) {
1578 io_request->RaidContext.regLockFlags = 0;
1581 if (MR_BuildRaidContext(instance, &io_info,
1582 &io_request->RaidContext,
1583 local_map_ptr, &raidLUN))
1584 fp_possible = io_info.fpOkForIo;
1587 /* Use raw_smp_processor_id() for now until cmd->request->cpu is CPU
1588 id by default, not CPU group id, otherwise all MSI-X queues won't
1590 cmd->request_desc->SCSIIO.MSIxIndex = instance->msix_vectors ?
1591 raw_smp_processor_id() % instance->msix_vectors : 0;
1594 megasas_set_pd_lba(io_request, scp->cmd_len, &io_info, scp,
1595 local_map_ptr, start_lba_lo);
1596 io_request->Function = MPI2_FUNCTION_SCSI_IO_REQUEST;
1597 cmd->request_desc->SCSIIO.RequestFlags =
1598 (MPI2_REQ_DESCRIPT_FLAGS_HIGH_PRIORITY
1599 << MEGASAS_REQ_DESCRIPT_FLAGS_TYPE_SHIFT);
1600 if ((instance->pdev->device == PCI_DEVICE_ID_LSI_INVADER) ||
1601 (instance->pdev->device == PCI_DEVICE_ID_LSI_FURY)) {
1602 if (io_request->RaidContext.regLockFlags ==
1604 cmd->request_desc->SCSIIO.RequestFlags =
1605 (MEGASAS_REQ_DESCRIPT_FLAGS_NO_LOCK <<
1606 MEGASAS_REQ_DESCRIPT_FLAGS_TYPE_SHIFT);
1607 io_request->RaidContext.Type = MPI2_TYPE_CUDA;
1608 io_request->RaidContext.nseg = 0x1;
1609 io_request->IoFlags |= cpu_to_le16(MPI25_SAS_DEVICE0_FLAGS_ENABLED_FAST_PATH);
1610 io_request->RaidContext.regLockFlags |=
1611 (MR_RL_FLAGS_GRANT_DESTINATION_CUDA |
1612 MR_RL_FLAGS_SEQ_NUM_ENABLE);
1614 if ((fusion->load_balance_info[device_id].loadBalanceFlag) &&
1617 get_updated_dev_handle(instance,
1618 &fusion->load_balance_info[device_id],
1620 scp->SCp.Status |= MEGASAS_LOAD_BALANCE_FLAG;
1621 cmd->pd_r1_lb = io_info.pd_after_lb;
1623 scp->SCp.Status &= ~MEGASAS_LOAD_BALANCE_FLAG;
1624 cmd->request_desc->SCSIIO.DevHandle = io_info.devHandle;
1625 io_request->DevHandle = io_info.devHandle;
1626 /* populate the LUN field */
1627 memcpy(io_request->LUN, raidLUN, 8);
1629 io_request->RaidContext.timeoutValue =
1630 cpu_to_le16(local_map_ptr->raidMap.fpPdIoTimeoutSec);
1631 cmd->request_desc->SCSIIO.RequestFlags =
1632 (MEGASAS_REQ_DESCRIPT_FLAGS_LD_IO
1633 << MEGASAS_REQ_DESCRIPT_FLAGS_TYPE_SHIFT);
1634 if ((instance->pdev->device == PCI_DEVICE_ID_LSI_INVADER) ||
1635 (instance->pdev->device == PCI_DEVICE_ID_LSI_FURY)) {
1636 if (io_request->RaidContext.regLockFlags ==
1638 cmd->request_desc->SCSIIO.RequestFlags =
1639 (MEGASAS_REQ_DESCRIPT_FLAGS_NO_LOCK <<
1640 MEGASAS_REQ_DESCRIPT_FLAGS_TYPE_SHIFT);
1641 io_request->RaidContext.Type = MPI2_TYPE_CUDA;
1642 io_request->RaidContext.regLockFlags |=
1643 (MR_RL_FLAGS_GRANT_DESTINATION_CPU0 |
1644 MR_RL_FLAGS_SEQ_NUM_ENABLE);
1645 io_request->RaidContext.nseg = 0x1;
1647 io_request->Function = MEGASAS_MPI2_FUNCTION_LD_IO_REQUEST;
1648 io_request->DevHandle = cpu_to_le16(device_id);
1653 * megasas_build_ld_nonrw_fusion - prepares non rw ios for virtual disk
1654 * @instance: Adapter soft state
1655 * @scp: SCSI command
1656 * @cmd: Command to be prepared
1658 * Prepares the io_request frame for non-rw io cmds for vd.
1660 static void megasas_build_ld_nonrw_fusion(struct megasas_instance *instance,
1661 struct scsi_cmnd *scmd, struct megasas_cmd_fusion *cmd)
1664 struct MPI2_RAID_SCSI_IO_REQUEST *io_request;
1666 struct MR_DRV_RAID_MAP_ALL *local_map_ptr;
1667 struct fusion_context *fusion = instance->ctrl_context;
1671 struct MR_LD_RAID *raid;
1672 struct RAID_CONTEXT *pRAID_Context;
1675 io_request = cmd->io_request;
1676 device_id = MEGASAS_DEV_INDEX(scmd);
1677 pd_index = MEGASAS_PD_INDEX(scmd);
1678 local_map_ptr = fusion->ld_drv_map[(instance->map_id & 1)];
1679 io_request->DataLength = cpu_to_le32(scsi_bufflen(scmd));
1680 /* get RAID_Context pointer */
1681 pRAID_Context = &io_request->RaidContext;
1682 /* Check with FW team */
1683 pRAID_Context->VirtualDiskTgtId = cpu_to_le16(device_id);
1684 pRAID_Context->regLockRowLBA = 0;
1685 pRAID_Context->regLockLength = 0;
1687 if (fusion->fast_path_io && (
1688 device_id < instance->fw_supported_vd_count)) {
1690 ld = MR_TargetIdToLdGet(device_id, local_map_ptr);
1691 if (ld >= instance->fw_supported_vd_count)
1694 raid = MR_LdRaidGet(ld, local_map_ptr);
1695 if (!(raid->capability.fpNonRWCapable))
1701 io_request->Function = MEGASAS_MPI2_FUNCTION_LD_IO_REQUEST;
1702 io_request->DevHandle = cpu_to_le16(device_id);
1703 io_request->LUN[1] = scmd->device->lun;
1704 pRAID_Context->timeoutValue =
1705 cpu_to_le16 (scmd->request->timeout / HZ);
1706 cmd->request_desc->SCSIIO.RequestFlags =
1707 (MPI2_REQ_DESCRIPT_FLAGS_SCSI_IO <<
1708 MEGASAS_REQ_DESCRIPT_FLAGS_TYPE_SHIFT);
1711 /* set RAID context values */
1712 pRAID_Context->configSeqNum = raid->seqNum;
1713 pRAID_Context->regLockFlags = REGION_TYPE_SHARED_READ;
1714 pRAID_Context->timeoutValue = cpu_to_le16(raid->fpIoTimeoutForLd);
1716 /* get the DevHandle for the PD (since this is
1717 fpNonRWCapable, this is a single disk RAID0) */
1719 arRef = MR_LdSpanArrayGet(ld, span, local_map_ptr);
1720 pd = MR_ArPdGet(arRef, physArm, local_map_ptr);
1721 devHandle = MR_PdDevHandleGet(pd, local_map_ptr);
1723 /* build request descriptor */
1724 cmd->request_desc->SCSIIO.RequestFlags =
1725 (MPI2_REQ_DESCRIPT_FLAGS_HIGH_PRIORITY <<
1726 MEGASAS_REQ_DESCRIPT_FLAGS_TYPE_SHIFT);
1727 cmd->request_desc->SCSIIO.DevHandle = devHandle;
1729 /* populate the LUN field */
1730 memcpy(io_request->LUN, raid->LUN, 8);
1732 /* build the raidScsiIO structure */
1733 io_request->Function = MPI2_FUNCTION_SCSI_IO_REQUEST;
1734 io_request->DevHandle = devHandle;
1739 * megasas_build_syspd_fusion - prepares rw/non-rw ios for syspd
1740 * @instance: Adapter soft state
1741 * @scp: SCSI command
1742 * @cmd: Command to be prepared
1743 * @fp_possible: parameter to detect fast path or firmware path io.
1745 * Prepares the io_request frame for rw/non-rw io cmds for syspds
1748 megasas_build_syspd_fusion(struct megasas_instance *instance,
1749 struct scsi_cmnd *scmd, struct megasas_cmd_fusion *cmd, u8 fp_possible)
1752 struct MPI2_RAID_SCSI_IO_REQUEST *io_request;
1754 u16 os_timeout_value;
1756 struct MR_DRV_RAID_MAP_ALL *local_map_ptr;
1757 struct RAID_CONTEXT *pRAID_Context;
1758 struct fusion_context *fusion = instance->ctrl_context;
1760 device_id = MEGASAS_DEV_INDEX(scmd);
1761 pd_index = MEGASAS_PD_INDEX(scmd);
1762 os_timeout_value = scmd->request->timeout / HZ;
1764 io_request = cmd->io_request;
1765 /* get RAID_Context pointer */
1766 pRAID_Context = &io_request->RaidContext;
1767 io_request->DataLength = cpu_to_le32(scsi_bufflen(scmd));
1768 io_request->LUN[1] = scmd->device->lun;
1769 pRAID_Context->RAIDFlags = MR_RAID_FLAGS_IO_SUB_TYPE_SYSTEM_PD
1770 << MR_RAID_CTX_RAID_FLAGS_IO_SUB_TYPE_SHIFT;
1772 pRAID_Context->VirtualDiskTgtId = cpu_to_le16(device_id);
1773 pRAID_Context->configSeqNum = 0;
1774 local_map_ptr = fusion->ld_drv_map[(instance->map_id & 1)];
1775 io_request->DevHandle =
1776 local_map_ptr->raidMap.devHndlInfo[device_id].curDevHdl;
1778 cmd->request_desc->SCSIIO.DevHandle = io_request->DevHandle;
1779 cmd->request_desc->SCSIIO.MSIxIndex =
1780 instance->msix_vectors ?
1781 (raw_smp_processor_id() % instance->msix_vectors) : 0;
1785 /* system pd firmware path */
1786 io_request->Function = MEGASAS_MPI2_FUNCTION_LD_IO_REQUEST;
1787 cmd->request_desc->SCSIIO.RequestFlags =
1788 (MPI2_REQ_DESCRIPT_FLAGS_SCSI_IO <<
1789 MEGASAS_REQ_DESCRIPT_FLAGS_TYPE_SHIFT);
1790 pRAID_Context->timeoutValue = cpu_to_le16(os_timeout_value);
1792 /* system pd Fast Path */
1793 io_request->Function = MPI2_FUNCTION_SCSI_IO_REQUEST;
1794 pRAID_Context->regLockFlags = 0;
1795 pRAID_Context->regLockRowLBA = 0;
1796 pRAID_Context->regLockLength = 0;
1797 timeout_limit = (scmd->device->type == TYPE_DISK) ?
1799 pRAID_Context->timeoutValue =
1800 cpu_to_le16((os_timeout_value > timeout_limit) ?
1801 timeout_limit : os_timeout_value);
1802 if ((instance->pdev->device == PCI_DEVICE_ID_LSI_INVADER) ||
1803 (instance->pdev->device == PCI_DEVICE_ID_LSI_FURY)) {
1804 cmd->request_desc->SCSIIO.RequestFlags |=
1805 (MEGASAS_REQ_DESCRIPT_FLAGS_NO_LOCK <<
1806 MEGASAS_REQ_DESCRIPT_FLAGS_TYPE_SHIFT);
1807 pRAID_Context->Type = MPI2_TYPE_CUDA;
1808 pRAID_Context->nseg = 0x1;
1809 io_request->IoFlags |=
1810 cpu_to_le16(MPI25_SAS_DEVICE0_FLAGS_ENABLED_FAST_PATH);
1812 cmd->request_desc->SCSIIO.RequestFlags =
1813 (MPI2_REQ_DESCRIPT_FLAGS_HIGH_PRIORITY <<
1814 MEGASAS_REQ_DESCRIPT_FLAGS_TYPE_SHIFT);
1819 * megasas_build_io_fusion - Prepares IOs to devices
1820 * @instance: Adapter soft state
1821 * @scp: SCSI command
1822 * @cmd: Command to be prepared
1824 * Invokes helper functions to prepare request frames
1825 * and sets flags appropriate for IO/Non-IO cmd
1828 megasas_build_io_fusion(struct megasas_instance *instance,
1829 struct scsi_cmnd *scp,
1830 struct megasas_cmd_fusion *cmd)
1834 struct MPI2_RAID_SCSI_IO_REQUEST *io_request = cmd->io_request;
1836 /* Zero out some fields so they don't get reused */
1837 memset(io_request->LUN, 0x0, 8);
1838 io_request->CDB.EEDP32.PrimaryReferenceTag = 0;
1839 io_request->CDB.EEDP32.PrimaryApplicationTagMask = 0;
1840 io_request->EEDPFlags = 0;
1841 io_request->Control = 0;
1842 io_request->EEDPBlockSize = 0;
1843 io_request->ChainOffset = 0;
1844 io_request->RaidContext.RAIDFlags = 0;
1845 io_request->RaidContext.Type = 0;
1846 io_request->RaidContext.nseg = 0;
1848 memcpy(io_request->CDB.CDB32, scp->cmnd, scp->cmd_len);
1850 * Just the CDB length,rest of the Flags are zero
1851 * This will be modified for FP in build_ldio_fusion
1853 io_request->IoFlags = cpu_to_le16(scp->cmd_len);
1855 switch (cmd_type = megasas_cmd_type(scp)) {
1856 case READ_WRITE_LDIO:
1857 megasas_build_ldio_fusion(instance, scp, cmd);
1859 case NON_READ_WRITE_LDIO:
1860 megasas_build_ld_nonrw_fusion(instance, scp, cmd);
1862 case READ_WRITE_SYSPDIO:
1863 case NON_READ_WRITE_SYSPDIO:
1864 if (instance->secure_jbod_support &&
1865 (cmd_type == NON_READ_WRITE_SYSPDIO))
1866 megasas_build_syspd_fusion(instance, scp, cmd, 0);
1868 megasas_build_syspd_fusion(instance, scp, cmd, 1);
1879 megasas_make_sgl_fusion(instance, scp,
1880 (struct MPI25_IEEE_SGE_CHAIN64 *)
1881 &io_request->SGL, cmd);
1883 if (sge_count > instance->max_num_sge) {
1884 printk(KERN_ERR "megasas: Error. sge_count (0x%x) exceeds "
1885 "max (0x%x) allowed\n", sge_count,
1886 instance->max_num_sge);
1890 io_request->RaidContext.numSGE = sge_count;
1892 io_request->SGLFlags = cpu_to_le16(MPI2_SGE_FLAGS_64_BIT_ADDRESSING);
1894 if (scp->sc_data_direction == PCI_DMA_TODEVICE)
1895 io_request->Control |= cpu_to_le32(MPI2_SCSIIO_CONTROL_WRITE);
1896 else if (scp->sc_data_direction == PCI_DMA_FROMDEVICE)
1897 io_request->Control |= cpu_to_le32(MPI2_SCSIIO_CONTROL_READ);
1899 io_request->SGLOffset0 =
1900 offsetof(struct MPI2_RAID_SCSI_IO_REQUEST, SGL) / 4;
1902 io_request->SenseBufferLowAddress = cpu_to_le32(cmd->sense_phys_addr);
1903 io_request->SenseBufferLength = SCSI_SENSE_BUFFERSIZE;
1906 scp->SCp.ptr = (char *)cmd;
1911 union MEGASAS_REQUEST_DESCRIPTOR_UNION *
1912 megasas_get_request_descriptor(struct megasas_instance *instance, u16 index)
1915 struct fusion_context *fusion;
1917 if (index >= instance->max_fw_cmds) {
1918 printk(KERN_ERR "megasas: Invalid SMID (0x%x)request for "
1919 "descriptor for scsi%d\n", index,
1920 instance->host->host_no);
1923 fusion = instance->ctrl_context;
1924 p = fusion->req_frames_desc
1925 +sizeof(union MEGASAS_REQUEST_DESCRIPTOR_UNION) *index;
1927 return (union MEGASAS_REQUEST_DESCRIPTOR_UNION *)p;
1931 * megasas_build_and_issue_cmd_fusion -Main routine for building and
1932 * issuing non IOCTL cmd
1933 * @instance: Adapter soft state
1934 * @scmd: pointer to scsi cmd from OS
1937 megasas_build_and_issue_cmd_fusion(struct megasas_instance *instance,
1938 struct scsi_cmnd *scmd)
1940 struct megasas_cmd_fusion *cmd;
1941 union MEGASAS_REQUEST_DESCRIPTOR_UNION *req_desc;
1943 struct fusion_context *fusion;
1945 fusion = instance->ctrl_context;
1947 cmd = megasas_get_cmd_fusion(instance);
1949 return SCSI_MLQUEUE_HOST_BUSY;
1953 req_desc = megasas_get_request_descriptor(instance, index-1);
1957 req_desc->Words = 0;
1958 cmd->request_desc = req_desc;
1960 if (megasas_build_io_fusion(instance, scmd, cmd)) {
1961 megasas_return_cmd_fusion(instance, cmd);
1962 printk(KERN_ERR "megasas: Error building command.\n");
1963 cmd->request_desc = NULL;
1967 req_desc = cmd->request_desc;
1968 req_desc->SCSIIO.SMID = cpu_to_le16(index);
1970 if (cmd->io_request->ChainOffset != 0 &&
1971 cmd->io_request->ChainOffset != 0xF)
1972 printk(KERN_ERR "megasas: The chain offset value is not "
1973 "correct : %x\n", cmd->io_request->ChainOffset);
1976 * Issue the command to the FW
1978 atomic_inc(&instance->fw_outstanding);
1980 instance->instancet->fire_cmd(instance,
1981 req_desc->u.low, req_desc->u.high,
1988 * complete_cmd_fusion - Completes command
1989 * @instance: Adapter soft state
1990 * Completes all commands that is in reply descriptor queue
1993 complete_cmd_fusion(struct megasas_instance *instance, u32 MSIxIndex)
1995 union MPI2_REPLY_DESCRIPTORS_UNION *desc;
1996 struct MPI2_SCSI_IO_SUCCESS_REPLY_DESCRIPTOR *reply_desc;
1997 struct MPI2_RAID_SCSI_IO_REQUEST *scsi_io_req;
1998 struct fusion_context *fusion;
1999 struct megasas_cmd *cmd_mfi;
2000 struct megasas_cmd_fusion *cmd_fusion;
2001 u16 smid, num_completed;
2002 u8 reply_descript_type;
2003 u32 status, extStatus, device_id;
2004 union desc_value d_val;
2005 struct LD_LOAD_BALANCE_INFO *lbinfo;
2006 int threshold_reply_count = 0;
2008 fusion = instance->ctrl_context;
2010 if (instance->adprecovery == MEGASAS_HW_CRITICAL_ERROR)
2013 desc = fusion->reply_frames_desc;
2014 desc += ((MSIxIndex * fusion->reply_alloc_sz)/
2015 sizeof(union MPI2_REPLY_DESCRIPTORS_UNION)) +
2016 fusion->last_reply_idx[MSIxIndex];
2018 reply_desc = (struct MPI2_SCSI_IO_SUCCESS_REPLY_DESCRIPTOR *)desc;
2020 d_val.word = desc->Words;
2022 reply_descript_type = reply_desc->ReplyFlags &
2023 MPI2_RPY_DESCRIPT_FLAGS_TYPE_MASK;
2025 if (reply_descript_type == MPI2_RPY_DESCRIPT_FLAGS_UNUSED)
2030 while ((d_val.u.low != UINT_MAX) && (d_val.u.high != UINT_MAX)) {
2031 smid = le16_to_cpu(reply_desc->SMID);
2033 cmd_fusion = fusion->cmd_list[smid - 1];
2036 (struct MPI2_RAID_SCSI_IO_REQUEST *)
2037 cmd_fusion->io_request;
2039 if (cmd_fusion->scmd)
2040 cmd_fusion->scmd->SCp.ptr = NULL;
2042 status = scsi_io_req->RaidContext.status;
2043 extStatus = scsi_io_req->RaidContext.exStatus;
2045 switch (scsi_io_req->Function) {
2046 case MPI2_FUNCTION_SCSI_IO_REQUEST: /*Fast Path IO.*/
2047 /* Update load balancing info */
2048 device_id = MEGASAS_DEV_INDEX(cmd_fusion->scmd);
2049 lbinfo = &fusion->load_balance_info[device_id];
2050 if (cmd_fusion->scmd->SCp.Status &
2051 MEGASAS_LOAD_BALANCE_FLAG) {
2052 atomic_dec(&lbinfo->scsi_pending_cmds[cmd_fusion->pd_r1_lb]);
2053 cmd_fusion->scmd->SCp.Status &=
2054 ~MEGASAS_LOAD_BALANCE_FLAG;
2056 if (reply_descript_type ==
2057 MPI2_RPY_DESCRIPT_FLAGS_SCSI_IO_SUCCESS) {
2058 if (megasas_dbg_lvl == 5)
2059 printk(KERN_ERR "\nmegasas: FAST Path "
2062 /* Fall thru and complete IO */
2063 case MEGASAS_MPI2_FUNCTION_LD_IO_REQUEST: /* LD-IO Path */
2064 /* Map the FW Cmd Status */
2065 map_cmd_status(cmd_fusion, status, extStatus);
2066 scsi_dma_unmap(cmd_fusion->scmd);
2067 cmd_fusion->scmd->scsi_done(cmd_fusion->scmd);
2068 scsi_io_req->RaidContext.status = 0;
2069 scsi_io_req->RaidContext.exStatus = 0;
2070 megasas_return_cmd_fusion(instance, cmd_fusion);
2071 atomic_dec(&instance->fw_outstanding);
2074 case MEGASAS_MPI2_FUNCTION_PASSTHRU_IO_REQUEST: /*MFI command */
2075 cmd_mfi = instance->cmd_list[cmd_fusion->sync_cmd_idx];
2077 if (!cmd_mfi->mpt_pthr_cmd_blocked) {
2078 if (megasas_dbg_lvl == 5)
2079 dev_info(&instance->pdev->dev,
2080 "freeing mfi/mpt pass-through "
2082 __func__, __LINE__);
2083 megasas_return_mfi_mpt_pthr(instance, cmd_mfi,
2087 megasas_complete_cmd(instance, cmd_mfi, DID_OK);
2088 cmd_fusion->flags = 0;
2092 fusion->last_reply_idx[MSIxIndex]++;
2093 if (fusion->last_reply_idx[MSIxIndex] >=
2094 fusion->reply_q_depth)
2095 fusion->last_reply_idx[MSIxIndex] = 0;
2097 desc->Words = ULLONG_MAX;
2099 threshold_reply_count++;
2101 /* Get the next reply descriptor */
2102 if (!fusion->last_reply_idx[MSIxIndex])
2103 desc = fusion->reply_frames_desc +
2104 ((MSIxIndex * fusion->reply_alloc_sz)/
2105 sizeof(union MPI2_REPLY_DESCRIPTORS_UNION));
2110 (struct MPI2_SCSI_IO_SUCCESS_REPLY_DESCRIPTOR *)desc;
2112 d_val.word = desc->Words;
2114 reply_descript_type = reply_desc->ReplyFlags &
2115 MPI2_RPY_DESCRIPT_FLAGS_TYPE_MASK;
2117 if (reply_descript_type == MPI2_RPY_DESCRIPT_FLAGS_UNUSED)
2120 * Write to reply post host index register after completing threshold
2121 * number of reply counts and still there are more replies in reply queue
2122 * pending to be completed
2124 if (threshold_reply_count >= THRESHOLD_REPLY_COUNT) {
2125 if ((instance->pdev->device ==
2126 PCI_DEVICE_ID_LSI_INVADER) ||
2127 (instance->pdev->device ==
2128 PCI_DEVICE_ID_LSI_FURY))
2129 writel(((MSIxIndex & 0x7) << 24) |
2130 fusion->last_reply_idx[MSIxIndex],
2131 instance->reply_post_host_index_addr[MSIxIndex/8]);
2133 writel((MSIxIndex << 24) |
2134 fusion->last_reply_idx[MSIxIndex],
2135 instance->reply_post_host_index_addr[0]);
2136 threshold_reply_count = 0;
2144 if ((instance->pdev->device == PCI_DEVICE_ID_LSI_INVADER) ||
2145 (instance->pdev->device == PCI_DEVICE_ID_LSI_FURY))
2146 writel(((MSIxIndex & 0x7) << 24) |
2147 fusion->last_reply_idx[MSIxIndex],
2148 instance->reply_post_host_index_addr[MSIxIndex/8]);
2150 writel((MSIxIndex << 24) |
2151 fusion->last_reply_idx[MSIxIndex],
2152 instance->reply_post_host_index_addr[0]);
2153 megasas_check_and_restore_queue_depth(instance);
2158 * megasas_complete_cmd_dpc_fusion - Completes command
2159 * @instance: Adapter soft state
2161 * Tasklet to complete cmds
2164 megasas_complete_cmd_dpc_fusion(unsigned long instance_addr)
2166 struct megasas_instance *instance =
2167 (struct megasas_instance *)instance_addr;
2168 unsigned long flags;
2169 u32 count, MSIxIndex;
2171 count = instance->msix_vectors > 0 ? instance->msix_vectors : 1;
2173 /* If we have already declared adapter dead, donot complete cmds */
2174 spin_lock_irqsave(&instance->hba_lock, flags);
2175 if (instance->adprecovery == MEGASAS_HW_CRITICAL_ERROR) {
2176 spin_unlock_irqrestore(&instance->hba_lock, flags);
2179 spin_unlock_irqrestore(&instance->hba_lock, flags);
2181 for (MSIxIndex = 0 ; MSIxIndex < count; MSIxIndex++)
2182 complete_cmd_fusion(instance, MSIxIndex);
2186 * megasas_isr_fusion - isr entry point
2188 irqreturn_t megasas_isr_fusion(int irq, void *devp)
2190 struct megasas_irq_context *irq_context = devp;
2191 struct megasas_instance *instance = irq_context->instance;
2192 u32 mfiStatus, fw_state, dma_state;
2194 if (instance->mask_interrupts)
2197 if (!instance->msix_vectors) {
2198 mfiStatus = instance->instancet->clear_intr(instance->reg_set);
2203 /* If we are resetting, bail */
2204 if (test_bit(MEGASAS_FUSION_IN_RESET, &instance->reset_flags)) {
2205 instance->instancet->clear_intr(instance->reg_set);
2209 if (!complete_cmd_fusion(instance, irq_context->MSIxIndex)) {
2210 instance->instancet->clear_intr(instance->reg_set);
2211 /* If we didn't complete any commands, check for FW fault */
2212 fw_state = instance->instancet->read_fw_status_reg(
2213 instance->reg_set) & MFI_STATE_MASK;
2214 dma_state = instance->instancet->read_fw_status_reg
2215 (instance->reg_set) & MFI_STATE_DMADONE;
2216 if (instance->crash_dump_drv_support &&
2217 instance->crash_dump_app_support) {
2218 /* Start collecting crash, if DMA bit is done */
2219 if ((fw_state == MFI_STATE_FAULT) && dma_state)
2220 schedule_work(&instance->crash_init);
2221 else if (fw_state == MFI_STATE_FAULT)
2222 schedule_work(&instance->work_init);
2223 } else if (fw_state == MFI_STATE_FAULT) {
2224 printk(KERN_WARNING "megaraid_sas: Iop2SysDoorbellInt"
2225 "for scsi%d\n", instance->host->host_no);
2226 schedule_work(&instance->work_init);
2234 * build_mpt_mfi_pass_thru - builds a cmd fo MFI Pass thru
2235 * @instance: Adapter soft state
2236 * mfi_cmd: megasas_cmd pointer
2240 build_mpt_mfi_pass_thru(struct megasas_instance *instance,
2241 struct megasas_cmd *mfi_cmd)
2243 struct MPI25_IEEE_SGE_CHAIN64 *mpi25_ieee_chain;
2244 struct MPI2_RAID_SCSI_IO_REQUEST *io_req;
2245 struct megasas_cmd_fusion *cmd;
2246 struct fusion_context *fusion;
2247 struct megasas_header *frame_hdr = &mfi_cmd->frame->hdr;
2250 cmd = megasas_get_cmd_fusion(instance);
2254 /* Save the smid. To be used for returning the cmd */
2255 mfi_cmd->context.smid = cmd->index;
2256 cmd->sync_cmd_idx = mfi_cmd->index;
2258 /* Set this only for Blocked commands */
2259 opcode = le32_to_cpu(mfi_cmd->frame->dcmd.opcode);
2260 if ((opcode == MR_DCMD_LD_MAP_GET_INFO)
2261 && (mfi_cmd->frame->dcmd.mbox.b[1] == 1))
2262 mfi_cmd->is_wait_event = 1;
2264 if (opcode == MR_DCMD_CTRL_EVENT_WAIT)
2265 mfi_cmd->is_wait_event = 1;
2267 if (mfi_cmd->is_wait_event)
2268 mfi_cmd->mpt_pthr_cmd_blocked = cmd;
2271 * For cmds where the flag is set, store the flag and check
2272 * on completion. For cmds with this flag, don't call
2273 * megasas_complete_cmd
2276 if (frame_hdr->flags & cpu_to_le16(MFI_FRAME_DONT_POST_IN_REPLY_QUEUE))
2277 cmd->flags = MFI_FRAME_DONT_POST_IN_REPLY_QUEUE;
2279 fusion = instance->ctrl_context;
2280 io_req = cmd->io_request;
2282 if ((instance->pdev->device == PCI_DEVICE_ID_LSI_INVADER) ||
2283 (instance->pdev->device == PCI_DEVICE_ID_LSI_FURY)) {
2284 struct MPI25_IEEE_SGE_CHAIN64 *sgl_ptr_end =
2285 (struct MPI25_IEEE_SGE_CHAIN64 *)&io_req->SGL;
2286 sgl_ptr_end += fusion->max_sge_in_main_msg - 1;
2287 sgl_ptr_end->Flags = 0;
2291 (struct MPI25_IEEE_SGE_CHAIN64 *)&io_req->SGL.IeeeChain;
2293 io_req->Function = MEGASAS_MPI2_FUNCTION_PASSTHRU_IO_REQUEST;
2294 io_req->SGLOffset0 = offsetof(struct MPI2_RAID_SCSI_IO_REQUEST,
2296 io_req->ChainOffset = fusion->chain_offset_mfi_pthru;
2298 mpi25_ieee_chain->Address = cpu_to_le64(mfi_cmd->frame_phys_addr);
2300 mpi25_ieee_chain->Flags = IEEE_SGE_FLAGS_CHAIN_ELEMENT |
2301 MPI2_IEEE_SGE_FLAGS_IOCPLBNTA_ADDR;
2303 mpi25_ieee_chain->Length = cpu_to_le32(MEGASAS_MAX_SZ_CHAIN_FRAME);
2309 * build_mpt_cmd - Calls helper function to build a cmd MFI Pass thru cmd
2310 * @instance: Adapter soft state
2311 * @cmd: mfi cmd to build
2314 union MEGASAS_REQUEST_DESCRIPTOR_UNION *
2315 build_mpt_cmd(struct megasas_instance *instance, struct megasas_cmd *cmd)
2317 union MEGASAS_REQUEST_DESCRIPTOR_UNION *req_desc;
2320 if (build_mpt_mfi_pass_thru(instance, cmd)) {
2321 printk(KERN_ERR "Couldn't build MFI pass thru cmd\n");
2325 index = cmd->context.smid;
2327 req_desc = megasas_get_request_descriptor(instance, index - 1);
2332 req_desc->Words = 0;
2333 req_desc->SCSIIO.RequestFlags = (MPI2_REQ_DESCRIPT_FLAGS_SCSI_IO <<
2334 MEGASAS_REQ_DESCRIPT_FLAGS_TYPE_SHIFT);
2336 req_desc->SCSIIO.SMID = cpu_to_le16(index);
2342 * megasas_issue_dcmd_fusion - Issues a MFI Pass thru cmd
2343 * @instance: Adapter soft state
2344 * @cmd: mfi cmd pointer
2348 megasas_issue_dcmd_fusion(struct megasas_instance *instance,
2349 struct megasas_cmd *cmd)
2351 union MEGASAS_REQUEST_DESCRIPTOR_UNION *req_desc;
2353 req_desc = build_mpt_cmd(instance, cmd);
2355 printk(KERN_ERR "Couldn't issue MFI pass thru cmd\n");
2358 atomic_set(&cmd->mfi_mpt_pthr, MFI_MPT_ATTACHED);
2359 instance->instancet->fire_cmd(instance, req_desc->u.low,
2360 req_desc->u.high, instance->reg_set);
2364 * megasas_release_fusion - Reverses the FW initialization
2365 * @intance: Adapter soft state
2368 megasas_release_fusion(struct megasas_instance *instance)
2370 megasas_free_cmds(instance);
2371 megasas_free_cmds_fusion(instance);
2373 iounmap(instance->reg_set);
2375 pci_release_selected_regions(instance->pdev, instance->bar);
2379 * megasas_read_fw_status_reg_fusion - returns the current FW status value
2380 * @regs: MFI register set
2383 megasas_read_fw_status_reg_fusion(struct megasas_register_set __iomem *regs)
2385 return readl(&(regs)->outbound_scratch_pad);
2389 * megasas_alloc_host_crash_buffer - Host buffers for Crash dump collection from Firmware
2390 * @instance: Controller's soft instance
2391 * return: Number of allocated host crash buffers
2394 megasas_alloc_host_crash_buffer(struct megasas_instance *instance)
2398 instance->crash_buf_pages = get_order(CRASH_DMA_BUF_SIZE);
2399 for (i = 0; i < MAX_CRASH_DUMP_SIZE; i++) {
2400 instance->crash_buf[i] = (void *)__get_free_pages(GFP_KERNEL,
2401 instance->crash_buf_pages);
2402 if (!instance->crash_buf[i]) {
2403 dev_info(&instance->pdev->dev, "Firmware crash dump "
2404 "memory allocation failed at index %d\n", i);
2407 memset(instance->crash_buf[i], 0,
2408 ((1 << PAGE_SHIFT) << instance->crash_buf_pages));
2410 instance->drv_buf_alloc = i;
2414 * megasas_free_host_crash_buffer - Host buffers for Crash dump collection from Firmware
2415 * @instance: Controller's soft instance
2418 megasas_free_host_crash_buffer(struct megasas_instance *instance)
2422 for (i = 0; i < instance->drv_buf_alloc; i++) {
2423 if (instance->crash_buf[i])
2424 free_pages((ulong)instance->crash_buf[i],
2425 instance->crash_buf_pages);
2427 instance->drv_buf_index = 0;
2428 instance->drv_buf_alloc = 0;
2429 instance->fw_crash_state = UNAVAILABLE;
2430 instance->fw_crash_buffer_size = 0;
2434 * megasas_adp_reset_fusion - For controller reset
2435 * @regs: MFI register set
2438 megasas_adp_reset_fusion(struct megasas_instance *instance,
2439 struct megasas_register_set __iomem *regs)
2445 * megasas_check_reset_fusion - For controller reset check
2446 * @regs: MFI register set
2449 megasas_check_reset_fusion(struct megasas_instance *instance,
2450 struct megasas_register_set __iomem *regs)
2455 /* This function waits for outstanding commands on fusion to complete */
2456 int megasas_wait_for_outstanding_fusion(struct megasas_instance *instance,
2457 int iotimeout, int *convert)
2459 int i, outstanding, retval = 0, hb_seconds_missed = 0;
2462 for (i = 0; i < resetwaittime; i++) {
2463 /* Check if firmware is in fault state */
2464 fw_state = instance->instancet->read_fw_status_reg(
2465 instance->reg_set) & MFI_STATE_MASK;
2466 if (fw_state == MFI_STATE_FAULT) {
2467 printk(KERN_WARNING "megasas: Found FW in FAULT state,"
2468 " will reset adapter scsi%d.\n",
2469 instance->host->host_no);
2473 /* If SR-IOV VF mode & heartbeat timeout, don't wait */
2474 if (instance->requestorId && !iotimeout) {
2479 /* If SR-IOV VF mode & I/O timeout, check for HB timeout */
2480 if (instance->requestorId && iotimeout) {
2481 if (instance->hb_host_mem->HB.fwCounter !=
2482 instance->hb_host_mem->HB.driverCounter) {
2483 instance->hb_host_mem->HB.driverCounter =
2484 instance->hb_host_mem->HB.fwCounter;
2485 hb_seconds_missed = 0;
2487 hb_seconds_missed++;
2488 if (hb_seconds_missed ==
2489 (MEGASAS_SRIOV_HEARTBEAT_INTERVAL_VF/HZ)) {
2490 printk(KERN_WARNING "megasas: SR-IOV:"
2491 " Heartbeat never completed "
2492 " while polling during I/O "
2493 " timeout handling for "
2495 instance->host->host_no);
2503 outstanding = atomic_read(&instance->fw_outstanding);
2507 if (!(i % MEGASAS_RESET_NOTICE_INTERVAL)) {
2508 printk(KERN_NOTICE "megasas: [%2d]waiting for %d "
2509 "commands to complete for scsi%d\n", i,
2510 outstanding, instance->host->host_no);
2511 megasas_complete_cmd_dpc_fusion(
2512 (unsigned long)instance);
2517 if (atomic_read(&instance->fw_outstanding)) {
2518 printk("megaraid_sas: pending commands remain after waiting, "
2519 "will reset adapter scsi%d.\n",
2520 instance->host->host_no);
2527 void megasas_reset_reply_desc(struct megasas_instance *instance)
2530 struct fusion_context *fusion;
2531 union MPI2_REPLY_DESCRIPTORS_UNION *reply_desc;
2533 fusion = instance->ctrl_context;
2534 count = instance->msix_vectors > 0 ? instance->msix_vectors : 1;
2535 for (i = 0 ; i < count ; i++)
2536 fusion->last_reply_idx[i] = 0;
2537 reply_desc = fusion->reply_frames_desc;
2538 for (i = 0 ; i < fusion->reply_q_depth * count; i++, reply_desc++)
2539 reply_desc->Words = ULLONG_MAX;
2543 * megasas_refire_mgmt_cmd : Re-fire management commands
2544 * @instance: Controller's soft instance
2546 void megasas_refire_mgmt_cmd(struct megasas_instance *instance)
2549 struct megasas_cmd_fusion *cmd_fusion;
2550 struct fusion_context *fusion;
2551 struct megasas_cmd *cmd_mfi;
2552 union MEGASAS_REQUEST_DESCRIPTOR_UNION *req_desc;
2555 fusion = instance->ctrl_context;
2557 /* Re-fire management commands.
2558 * Do not traverse complet MPT frame pool. Start from max_scsi_cmds.
2560 for (j = instance->max_scsi_cmds ; j < instance->max_fw_cmds; j++) {
2561 cmd_fusion = fusion->cmd_list[j];
2562 cmd_mfi = instance->cmd_list[cmd_fusion->sync_cmd_idx];
2563 smid = le16_to_cpu(cmd_mfi->context.smid);
2567 req_desc = megasas_get_request_descriptor
2568 (instance, smid - 1);
2569 if (req_desc && (cmd_mfi->frame->dcmd.opcode !=
2570 cpu_to_le32(MR_DCMD_LD_MAP_GET_INFO))) {
2571 instance->instancet->fire_cmd(instance,
2572 req_desc->u.low, req_desc->u.high,
2575 megasas_return_cmd(instance, cmd_mfi);
2579 /* Check for a second path that is currently UP */
2580 int megasas_check_mpio_paths(struct megasas_instance *instance,
2581 struct scsi_cmnd *scmd)
2583 int i, j, retval = (DID_RESET << 16);
2585 if (instance->mpio && instance->requestorId) {
2586 for (i = 0 ; i < MAX_MGMT_ADAPTERS ; i++)
2587 for (j = 0 ; j < MAX_LOGICAL_DRIVES; j++)
2588 if (megasas_mgmt_info.instance[i] &&
2589 (megasas_mgmt_info.instance[i] != instance) &&
2590 megasas_mgmt_info.instance[i]->mpio &&
2591 megasas_mgmt_info.instance[i]->requestorId
2593 (megasas_mgmt_info.instance[i]->ld_ids[j]
2594 == scmd->device->id)) {
2595 retval = (DID_NO_CONNECT << 16);
2603 /* Core fusion reset function */
2604 int megasas_reset_fusion(struct Scsi_Host *shost, int iotimeout)
2606 int retval = SUCCESS, i, retry = 0, convert = 0;
2607 struct megasas_instance *instance;
2608 struct megasas_cmd_fusion *cmd_fusion;
2609 struct fusion_context *fusion;
2610 u32 host_diag, abs_state, status_reg, reset_adapter;
2611 u32 io_timeout_in_crash_mode = 0;
2613 instance = (struct megasas_instance *)shost->hostdata;
2614 fusion = instance->ctrl_context;
2616 mutex_lock(&instance->reset_mutex);
2618 if (instance->adprecovery == MEGASAS_HW_CRITICAL_ERROR) {
2619 printk(KERN_WARNING "megaraid_sas: Hardware critical error, "
2620 "returning FAILED for scsi%d.\n",
2621 instance->host->host_no);
2622 mutex_unlock(&instance->reset_mutex);
2625 status_reg = instance->instancet->read_fw_status_reg(instance->reg_set);
2626 abs_state = status_reg & MFI_STATE_MASK;
2628 /* IO timeout detected, forcibly put FW in FAULT state */
2629 if (abs_state != MFI_STATE_FAULT && instance->crash_dump_buf &&
2630 instance->crash_dump_app_support && iotimeout) {
2631 dev_info(&instance->pdev->dev, "IO timeout is detected, "
2632 "forcibly FAULT Firmware\n");
2633 instance->adprecovery = MEGASAS_ADPRESET_SM_INFAULT;
2634 status_reg = readl(&instance->reg_set->doorbell);
2635 writel(status_reg | MFI_STATE_FORCE_OCR,
2636 &instance->reg_set->doorbell);
2637 readl(&instance->reg_set->doorbell);
2638 mutex_unlock(&instance->reset_mutex);
2641 io_timeout_in_crash_mode++;
2642 dev_dbg(&instance->pdev->dev, "waiting for [%d] "
2643 "seconds for crash dump collection and OCR "
2644 "to be done\n", (io_timeout_in_crash_mode * 3));
2645 } while ((instance->adprecovery != MEGASAS_HBA_OPERATIONAL) &&
2646 (io_timeout_in_crash_mode < 80));
2648 if (instance->adprecovery == MEGASAS_HBA_OPERATIONAL) {
2649 dev_info(&instance->pdev->dev, "OCR done for IO "
2653 dev_info(&instance->pdev->dev, "Controller is not "
2654 "operational after 240 seconds wait for IO "
2655 "timeout case in FW crash dump mode\n do "
2656 "OCR/kill adapter\n");
2657 retval = megasas_reset_fusion(shost, 0);
2662 if (instance->requestorId && !instance->skip_heartbeat_timer_del)
2663 del_timer_sync(&instance->sriov_heartbeat_timer);
2664 set_bit(MEGASAS_FUSION_IN_RESET, &instance->reset_flags);
2665 instance->adprecovery = MEGASAS_ADPRESET_SM_POLLING;
2666 instance->instancet->disable_intr(instance);
2669 /* First try waiting for commands to complete */
2670 if (megasas_wait_for_outstanding_fusion(instance, iotimeout,
2672 instance->adprecovery = MEGASAS_ADPRESET_SM_INFAULT;
2673 printk(KERN_WARNING "megaraid_sas: resetting fusion "
2674 "adapter scsi%d.\n", instance->host->host_no);
2678 /* Now return commands back to the OS */
2679 for (i = 0 ; i < instance->max_fw_cmds; i++) {
2680 cmd_fusion = fusion->cmd_list[i];
2681 if (cmd_fusion->scmd) {
2682 scsi_dma_unmap(cmd_fusion->scmd);
2683 cmd_fusion->scmd->result =
2684 megasas_check_mpio_paths(instance,
2686 cmd_fusion->scmd->scsi_done(cmd_fusion->scmd);
2687 megasas_return_cmd_fusion(instance, cmd_fusion);
2688 atomic_dec(&instance->fw_outstanding);
2692 status_reg = instance->instancet->read_fw_status_reg(
2694 abs_state = status_reg & MFI_STATE_MASK;
2695 reset_adapter = status_reg & MFI_RESET_ADAPTER;
2696 if (instance->disableOnlineCtrlReset ||
2697 (abs_state == MFI_STATE_FAULT && !reset_adapter)) {
2698 /* Reset not supported, kill adapter */
2699 printk(KERN_WARNING "megaraid_sas: Reset not supported"
2700 ", killing adapter scsi%d.\n",
2701 instance->host->host_no);
2702 megaraid_sas_kill_hba(instance);
2703 instance->skip_heartbeat_timer_del = 1;
2708 /* Let SR-IOV VF & PF sync up if there was a HB failure */
2709 if (instance->requestorId && !iotimeout) {
2710 msleep(MEGASAS_OCR_SETTLE_TIME_VF);
2711 /* Look for a late HB update after VF settle time */
2712 if (abs_state == MFI_STATE_OPERATIONAL &&
2713 (instance->hb_host_mem->HB.fwCounter !=
2714 instance->hb_host_mem->HB.driverCounter)) {
2715 instance->hb_host_mem->HB.driverCounter =
2716 instance->hb_host_mem->HB.fwCounter;
2717 printk(KERN_WARNING "megasas: SR-IOV:"
2718 "Late FW heartbeat update for "
2720 instance->host->host_no);
2722 /* In VF mode, first poll for FW ready */
2724 i < (MEGASAS_RESET_WAIT_TIME * 1000);
2727 instance->instancet->
2730 abs_state = status_reg &
2732 if (abs_state == MFI_STATE_READY) {
2733 printk(KERN_WARNING "megasas"
2734 ": SR-IOV: FW was found"
2735 "to be in ready state "
2737 instance->host->host_no);
2742 if (abs_state != MFI_STATE_READY) {
2743 printk(KERN_WARNING "megasas: SR-IOV: "
2744 "FW not in ready state after %d"
2745 " seconds for scsi%d, status_reg = "
2747 MEGASAS_RESET_WAIT_TIME,
2748 instance->host->host_no,
2750 megaraid_sas_kill_hba(instance);
2751 instance->skip_heartbeat_timer_del = 1;
2752 instance->adprecovery =
2753 MEGASAS_HW_CRITICAL_ERROR;
2760 /* Now try to reset the chip */
2761 for (i = 0; i < MEGASAS_FUSION_MAX_RESET_TRIES; i++) {
2762 writel(MPI2_WRSEQ_FLUSH_KEY_VALUE,
2763 &instance->reg_set->fusion_seq_offset);
2764 writel(MPI2_WRSEQ_1ST_KEY_VALUE,
2765 &instance->reg_set->fusion_seq_offset);
2766 writel(MPI2_WRSEQ_2ND_KEY_VALUE,
2767 &instance->reg_set->fusion_seq_offset);
2768 writel(MPI2_WRSEQ_3RD_KEY_VALUE,
2769 &instance->reg_set->fusion_seq_offset);
2770 writel(MPI2_WRSEQ_4TH_KEY_VALUE,
2771 &instance->reg_set->fusion_seq_offset);
2772 writel(MPI2_WRSEQ_5TH_KEY_VALUE,
2773 &instance->reg_set->fusion_seq_offset);
2774 writel(MPI2_WRSEQ_6TH_KEY_VALUE,
2775 &instance->reg_set->fusion_seq_offset);
2777 /* Check that the diag write enable (DRWE) bit is on */
2778 host_diag = readl(&instance->reg_set->fusion_host_diag);
2780 while (!(host_diag & HOST_DIAG_WRITE_ENABLE)) {
2783 readl(&instance->reg_set->fusion_host_diag);
2784 if (retry++ == 100) {
2785 printk(KERN_WARNING "megaraid_sas: "
2786 "Host diag unlock failed! "
2788 instance->host->host_no);
2792 if (!(host_diag & HOST_DIAG_WRITE_ENABLE))
2795 /* Send chip reset command */
2796 writel(host_diag | HOST_DIAG_RESET_ADAPTER,
2797 &instance->reg_set->fusion_host_diag);
2800 /* Make sure reset adapter bit is cleared */
2801 host_diag = readl(&instance->reg_set->fusion_host_diag);
2803 while (host_diag & HOST_DIAG_RESET_ADAPTER) {
2806 readl(&instance->reg_set->fusion_host_diag);
2807 if (retry++ == 1000) {
2808 printk(KERN_WARNING "megaraid_sas: "
2809 "Diag reset adapter never "
2810 "cleared for scsi%d!\n",
2811 instance->host->host_no);
2815 if (host_diag & HOST_DIAG_RESET_ADAPTER)
2819 instance->instancet->read_fw_status_reg(
2820 instance->reg_set) & MFI_STATE_MASK;
2823 while ((abs_state <= MFI_STATE_FW_INIT) &&
2827 instance->instancet->read_fw_status_reg(
2828 instance->reg_set) & MFI_STATE_MASK;
2830 if (abs_state <= MFI_STATE_FW_INIT) {
2831 printk(KERN_WARNING "megaraid_sas: firmware "
2832 "state < MFI_STATE_FW_INIT, state = "
2833 "0x%x for scsi%d\n", abs_state,
2834 instance->host->host_no);
2838 /* Wait for FW to become ready */
2839 if (megasas_transition_to_ready(instance, 1)) {
2840 printk(KERN_WARNING "megaraid_sas: Failed to "
2841 "transition controller to ready "
2843 instance->host->host_no);
2847 megasas_reset_reply_desc(instance);
2848 if (megasas_ioc_init_fusion(instance)) {
2849 printk(KERN_WARNING "megaraid_sas: "
2850 "megasas_ioc_init_fusion() failed!"
2852 instance->host->host_no);
2856 megasas_refire_mgmt_cmd(instance);
2858 if (megasas_get_ctrl_info(instance)) {
2859 dev_info(&instance->pdev->dev,
2860 "Failed from %s %d\n",
2861 __func__, __LINE__);
2862 megaraid_sas_kill_hba(instance);
2865 /* Reset load balance info */
2866 memset(fusion->load_balance_info, 0,
2867 sizeof(struct LD_LOAD_BALANCE_INFO)
2868 *MAX_LOGICAL_DRIVES_EXT);
2870 if (!megasas_get_map_info(instance))
2871 megasas_sync_map_info(instance);
2873 clear_bit(MEGASAS_FUSION_IN_RESET,
2874 &instance->reset_flags);
2875 instance->instancet->enable_intr(instance);
2876 instance->adprecovery = MEGASAS_HBA_OPERATIONAL;
2878 /* Restart SR-IOV heartbeat */
2879 if (instance->requestorId) {
2880 if (!megasas_sriov_start_heartbeat(instance, 0))
2881 megasas_start_timer(instance,
2882 &instance->sriov_heartbeat_timer,
2883 megasas_sriov_heartbeat_handler,
2884 MEGASAS_SRIOV_HEARTBEAT_INTERVAL_VF);
2886 instance->skip_heartbeat_timer_del = 1;
2889 /* Adapter reset completed successfully */
2890 printk(KERN_WARNING "megaraid_sas: Reset "
2891 "successful for scsi%d.\n",
2892 instance->host->host_no);
2894 if (instance->crash_dump_drv_support &&
2895 instance->crash_dump_app_support)
2896 megasas_set_crash_dump_params(instance,
2897 MR_CRASH_BUF_TURN_ON);
2899 megasas_set_crash_dump_params(instance,
2900 MR_CRASH_BUF_TURN_OFF);
2905 /* Reset failed, kill the adapter */
2906 printk(KERN_WARNING "megaraid_sas: Reset failed, killing "
2907 "adapter scsi%d.\n", instance->host->host_no);
2908 megaraid_sas_kill_hba(instance);
2909 instance->skip_heartbeat_timer_del = 1;
2912 /* For VF: Restart HB timer if we didn't OCR */
2913 if (instance->requestorId) {
2914 megasas_start_timer(instance,
2915 &instance->sriov_heartbeat_timer,
2916 megasas_sriov_heartbeat_handler,
2917 MEGASAS_SRIOV_HEARTBEAT_INTERVAL_VF);
2919 clear_bit(MEGASAS_FUSION_IN_RESET, &instance->reset_flags);
2920 instance->instancet->enable_intr(instance);
2921 instance->adprecovery = MEGASAS_HBA_OPERATIONAL;
2924 clear_bit(MEGASAS_FUSION_IN_RESET, &instance->reset_flags);
2925 mutex_unlock(&instance->reset_mutex);
2929 /* Fusion Crash dump collection work queue */
2930 void megasas_fusion_crash_dump_wq(struct work_struct *work)
2932 struct megasas_instance *instance =
2933 container_of(work, struct megasas_instance, crash_init);
2935 u8 partial_copy = 0;
2938 status_reg = instance->instancet->read_fw_status_reg(instance->reg_set);
2941 * Allocate host crash buffers to copy data from 1 MB DMA crash buffer
2942 * to host crash buffers
2944 if (instance->drv_buf_index == 0) {
2945 /* Buffer is already allocated for old Crash dump.
2946 * Do OCR and do not wait for crash dump collection
2948 if (instance->drv_buf_alloc) {
2949 dev_info(&instance->pdev->dev, "earlier crash dump is "
2950 "not yet copied by application, ignoring this "
2951 "crash dump and initiating OCR\n");
2952 status_reg |= MFI_STATE_CRASH_DUMP_DONE;
2954 &instance->reg_set->outbound_scratch_pad);
2955 readl(&instance->reg_set->outbound_scratch_pad);
2958 megasas_alloc_host_crash_buffer(instance);
2959 dev_info(&instance->pdev->dev, "Number of host crash buffers "
2960 "allocated: %d\n", instance->drv_buf_alloc);
2964 * Driver has allocated max buffers, which can be allocated
2965 * and FW has more crash dump data, then driver will
2968 if (instance->drv_buf_index >= (instance->drv_buf_alloc)) {
2969 dev_info(&instance->pdev->dev, "Driver is done copying "
2970 "the buffer: %d\n", instance->drv_buf_alloc);
2971 status_reg |= MFI_STATE_CRASH_DUMP_DONE;
2974 memcpy(instance->crash_buf[instance->drv_buf_index],
2975 instance->crash_dump_buf, CRASH_DMA_BUF_SIZE);
2976 instance->drv_buf_index++;
2977 status_reg &= ~MFI_STATE_DMADONE;
2980 if (status_reg & MFI_STATE_CRASH_DUMP_DONE) {
2981 dev_info(&instance->pdev->dev, "Crash Dump is available,number "
2982 "of copied buffers: %d\n", instance->drv_buf_index);
2983 instance->fw_crash_buffer_size = instance->drv_buf_index;
2984 instance->fw_crash_state = AVAILABLE;
2985 instance->drv_buf_index = 0;
2986 writel(status_reg, &instance->reg_set->outbound_scratch_pad);
2987 readl(&instance->reg_set->outbound_scratch_pad);
2989 megasas_reset_fusion(instance->host, 0);
2991 writel(status_reg, &instance->reg_set->outbound_scratch_pad);
2992 readl(&instance->reg_set->outbound_scratch_pad);
2997 /* Fusion OCR work queue */
2998 void megasas_fusion_ocr_wq(struct work_struct *work)
3000 struct megasas_instance *instance =
3001 container_of(work, struct megasas_instance, work_init);
3003 megasas_reset_fusion(instance->host, 0);
3006 struct megasas_instance_template megasas_instance_template_fusion = {
3007 .fire_cmd = megasas_fire_cmd_fusion,
3008 .enable_intr = megasas_enable_intr_fusion,
3009 .disable_intr = megasas_disable_intr_fusion,
3010 .clear_intr = megasas_clear_intr_fusion,
3011 .read_fw_status_reg = megasas_read_fw_status_reg_fusion,
3012 .adp_reset = megasas_adp_reset_fusion,
3013 .check_reset = megasas_check_reset_fusion,
3014 .service_isr = megasas_isr_fusion,
3015 .tasklet = megasas_complete_cmd_dpc_fusion,
3016 .init_adapter = megasas_init_adapter_fusion,
3017 .build_and_issue_cmd = megasas_build_and_issue_cmd_fusion,
3018 .issue_dcmd = megasas_issue_dcmd_fusion,