]> git.proxmox.com Git - mirror_ubuntu-bionic-kernel.git/blame - drivers/scsi/megaraid/megaraid_sas_fusion.c
projects / mirror_ubuntu-bionic-kernel.git / blame
? search:
summary | shortlog | log | commit | commitdiff | tree
blob | blame (incremental) | history | HEAD
scsi: megaraid_sas: fix selection of reply queue
[mirror_ubuntu-bionic-kernel.git] / drivers / scsi / megaraid / megaraid_sas_fusion.c
CommitLineData
9c915a8c
AR		 1/*
2 * Linux MegaRAID driver for SAS based RAID controllers
3 *
e399065b
SS		 4 * Copyright (c) 2009-2013 LSI Corporation
5 * Copyright (c) 2013-2014 Avago Technologies
9c915a8c
AR		 6 *
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.
11 *
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.
16 *
17 * You should have received a copy of the GNU General Public License
e399065b 18 * along with this program. If not, see <http://www.gnu.org/licenses/>.
9c915a8c
AR		 19 *
20 * FILE: megaraid_sas_fusion.c
21 *
e399065b 22 * Authors: Avago Technologies
9c915a8c 23 * Sumant Patro
e399065b
SS		 24 * Adam Radford
25 * Kashyap Desai <kashyap.desai@avagotech.com>
26 * Sumit Saxena <sumit.saxena@avagotech.com>
9c915a8c 27 *
e399065b 28 * Send feedback to: megaraidlinux.pdl@avagotech.com
9c915a8c 29 *
e399065b
SS		 30 * Mail to: Avago Technologies, 350 West Trimble Road, Building 90,
31 * San Jose, California 95131
9c915a8c
AR		 32 */
33
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>
9c915a8c
AR		 43#include <linux/uio.h>
44#include <linux/uaccess.h>
45#include <linux/fs.h>
46#include <linux/compat.h>
47#include <linux/blkdev.h>
48#include <linux/mutex.h>
49#include <linux/poll.h>
5fc499b6 50#include <linux/vmalloc.h>
9c915a8c
AR		 51
52#include <scsi/scsi.h>
53#include <scsi/scsi_cmnd.h>
54#include <scsi/scsi_device.h>
55#include <scsi/scsi_host.h>
90dc9d98 56#include <scsi/scsi_dbg.h>
5765c5b8 57#include <linux/dmi.h>
9c915a8c
AR		 58
59#include "megaraid_sas_fusion.h"
60#include "megaraid_sas.h"
61
4026e9aa 62
9c915a8c
AR		 63extern void megasas_free_cmds(struct megasas_instance *instance);
64extern struct megasas_cmd *megasas_get_cmd(struct megasas_instance
65 *instance);
66extern void
67megasas_complete_cmd(struct megasas_instance *instance,
68 struct megasas_cmd *cmd, u8 alt_status);
9c915a8c 69int
229fe47c
AR		 70wait_and_poll(struct megasas_instance *instance, struct megasas_cmd *cmd,
71 int seconds);
9c915a8c
AR		 72
73void
74megasas_return_cmd(struct megasas_instance *instance, struct megasas_cmd *cmd);
75int megasas_alloc_cmds(struct megasas_instance *instance);
76int
77megasas_clear_intr_fusion(struct megasas_register_set __iomem *regs);
78int
79megasas_issue_polled(struct megasas_instance *instance,
80 struct megasas_cmd *cmd);
53ef2bbd
AR		 81void
82megasas_check_and_restore_queue_depth(struct megasas_instance *instance);
83
058a8fac 84int megasas_transition_to_ready(struct megasas_instance *instance, int ocr);
9c915a8c
AR		 85void megaraid_sas_kill_hba(struct megasas_instance *instance);
86
87extern u32 megasas_dbg_lvl;
229fe47c
AR		 88int megasas_sriov_start_heartbeat(struct megasas_instance *instance,
89 int initial);
c251a7be 90void megasas_start_timer(struct megasas_instance *instance);
229fe47c 91extern struct megasas_mgmt_info megasas_mgmt_info;
e3d178ca 92extern unsigned int resetwaittime;
308ec459 93extern unsigned int dual_qdepth_disable;
179ac142
SS		 94static void megasas_free_rdpq_fusion(struct megasas_instance *instance);
95static void megasas_free_reply_fusion(struct megasas_instance *instance);
e97e673c
S		 96static inline
97void megasas_configure_queue_sizes(struct megasas_instance *instance);
9c915a8c 98
107a60dd
S		 99/**
100 * megasas_check_same_4gb_region - check if allocation
101 * crosses same 4GB boundary or not
102 * @instance - adapter's soft instance
103 * start_addr - start address of DMA allocation
104 * size - size of allocation in bytes
105 * return - true : allocation does not cross same
106 * 4GB boundary
107 * false: allocation crosses same
108 * 4GB boundary
109 */
110static inline bool megasas_check_same_4gb_region
111 (struct megasas_instance *instance, dma_addr_t start_addr, size_t size)
112{
113 dma_addr_t end_addr;
114
115 end_addr = start_addr + size;
fc62b3fc 116
107a60dd
S		 117 if (upper_32_bits(start_addr) != upper_32_bits(end_addr)) {
118 dev_err(&instance->pdev->dev,
119 "Failed to get same 4GB boundary: start_addr: 0x%llx end_addr: 0x%llx\n",
120 (unsigned long long)start_addr,
121 (unsigned long long)end_addr);
122 return false;
123 }
124
125 return true;
126}
fc62b3fc 127
9c915a8c
AR		 128/**
129 * megasas_enable_intr_fusion - Enables interrupts
130 * @regs: MFI register set
131 */
132void
d46a3ad6 133megasas_enable_intr_fusion(struct megasas_instance *instance)
9c915a8c 134{
d46a3ad6
SS		 135 struct megasas_register_set __iomem *regs;
136 regs = instance->reg_set;
c2ced171
SS		 137
138 instance->mask_interrupts = 0;
6497b247
AR		 139 /* For Thunderbolt/Invader also clear intr on enable */
140 writel(~0, &regs->outbound_intr_status);
141 readl(&regs->outbound_intr_status);
142
9c915a8c
AR		 143 writel(~MFI_FUSION_ENABLE_INTERRUPT_MASK, &(regs)->outbound_intr_mask);
144
145 /* Dummy readl to force pci flush */
146 readl(&regs->outbound_intr_mask);
147}
148
149/**
150 * megasas_disable_intr_fusion - Disables interrupt
151 * @regs: MFI register set
152 */
153void
d46a3ad6 154megasas_disable_intr_fusion(struct megasas_instance *instance)
9c915a8c
AR		 155{
156 u32 mask = 0xFFFFFFFF;
157 u32 status;
d46a3ad6
SS		 158 struct megasas_register_set __iomem *regs;
159 regs = instance->reg_set;
160 instance->mask_interrupts = 1;
9c915a8c
AR		 161
162 writel(mask, &regs->outbound_intr_mask);
163 /* Dummy readl to force pci flush */
164 status = readl(&regs->outbound_intr_mask);
165}
166
167int
168megasas_clear_intr_fusion(struct megasas_register_set __iomem *regs)
169{
170 u32 status;
171 /*
172 * Check if it is our interrupt
173 */
174 status = readl(&regs->outbound_intr_status);
175
176 if (status & 1) {
177 writel(status, &regs->outbound_intr_status);
178 readl(&regs->outbound_intr_status);
179 return 1;
180 }
181 if (!(status & MFI_FUSION_ENABLE_INTERRUPT_MASK))
182 return 0;
183
9c915a8c
AR		 184 return 1;
185}
186
187/**
188 * megasas_get_cmd_fusion - Get a command from the free pool
189 * @instance: Adapter soft state
190 *
4026e9aa 191 * Returns a blk_tag indexed mpt frame
9c915a8c 192 */
4026e9aa
SS		 193inline struct megasas_cmd_fusion *megasas_get_cmd_fusion(struct megasas_instance
194 *instance, u32 blk_tag)
9c915a8c 195{
4026e9aa 196 struct fusion_context *fusion;
9c915a8c 197
4026e9aa
SS		 198 fusion = instance->ctrl_context;
199 return fusion->cmd_list[blk_tag];
9c915a8c
AR		 200}
201
202/**
203 * megasas_return_cmd_fusion - Return a cmd to free command pool
204 * @instance: Adapter soft state
205 * @cmd: Command packet to be returned to free command pool
206 */
90dc9d98
SS		 207inline void megasas_return_cmd_fusion(struct megasas_instance *instance,
208 struct megasas_cmd_fusion *cmd)
9c915a8c 209{
9c915a8c 210 cmd->scmd = NULL;
8bf7c65d
S		 211 memset(cmd->io_request, 0, MEGA_MPI2_RAID_DEFAULT_IO_FRAME_SIZE);
212 cmd->r1_alt_dev_handle = MR_DEVHANDLE_INVALID;
213 cmd->cmd_completed = false;
90dc9d98
SS		 214}
215
216/**
01d7f03b 217 * megasas_fire_cmd_fusion - Sends command to the FW
45b8a35e 218 * @instance: Adapter soft state
2ff925cb 219 * @req_desc: 64bit Request descriptor
45b8a35e 220 *
2ff925cb 221 * Perform PCI Write.
90dc9d98 222 */
45b8a35e 223
01d7f03b
CH		 224static void
225megasas_fire_cmd_fusion(struct megasas_instance *instance,
45b8a35e 226 union MEGASAS_REQUEST_DESCRIPTOR_UNION *req_desc)
90dc9d98 227{
45b8a35e 228#if defined(writeq) && defined(CONFIG_64BIT)
2ff925cb
S		 229 u64 req_data = (((u64)le32_to_cpu(req_desc->u.high) << 32) |
230 le32_to_cpu(req_desc->u.low));
45b8a35e 231
2ff925cb 232 writeq(req_data, &instance->reg_set->inbound_low_queue_port);
45b8a35e 233#else
2ff925cb
S		 234 unsigned long flags;
235 spin_lock_irqsave(&instance->hba_lock, flags);
236 writel(le32_to_cpu(req_desc->u.low),
237 &instance->reg_set->inbound_low_queue_port);
238 writel(le32_to_cpu(req_desc->u.high),
239 &instance->reg_set->inbound_high_queue_port);
240 mmiowb();
241 spin_unlock_irqrestore(&instance->hba_lock, flags);
01d7f03b 242#endif
9c915a8c
AR		 243}
244
308ec459
SS		 245/**
246 * megasas_fusion_update_can_queue - Do all Adapter Queue depth related calculations here
247 * @instance: Adapter soft state
248 * fw_boot_context: Whether this function called during probe or after OCR
249 *
250 * This function is only for fusion controllers.
251 * Update host can queue, if firmware downgrade max supported firmware commands.
252 * Firmware upgrade case will be skiped because underlying firmware has
253 * more resource than exposed to the OS.
254 *
255 */
256static void
257megasas_fusion_update_can_queue(struct megasas_instance *instance, int fw_boot_context)
258{
259 u16 cur_max_fw_cmds = 0;
260 u16 ldio_threshold = 0;
261 struct megasas_register_set __iomem *reg_set;
262
263 reg_set = instance->reg_set;
264
9581ebeb 265 /* ventura FW does not fill outbound_scratch_pad_3 with queue depth */
f369a315 266 if (instance->adapter_type < VENTURA_SERIES)
9581ebeb
SC		 267 cur_max_fw_cmds =
268 readl(&instance->reg_set->outbound_scratch_pad_3) & 0x00FFFF;
308ec459
SS		 269
270 if (dual_qdepth_disable || !cur_max_fw_cmds)
271 cur_max_fw_cmds = instance->instancet->read_fw_status_reg(reg_set) & 0x00FFFF;
272 else
273 ldio_threshold =
274 (instance->instancet->read_fw_status_reg(reg_set) & 0x00FFFF) - MEGASAS_FUSION_IOCTL_CMDS;
275
276 dev_info(&instance->pdev->dev,
b5c5d0ad 277 "Current firmware supports maximum commands: %d\t LDIO threshold: %d\n",
e97e673c 278 cur_max_fw_cmds, ldio_threshold);
308ec459
SS		 279
280 if (fw_boot_context == OCR_CONTEXT) {
281 cur_max_fw_cmds = cur_max_fw_cmds - 1;
013aec66 282 if (cur_max_fw_cmds < instance->max_fw_cmds) {
308ec459
SS		 283 instance->cur_can_queue =
284 cur_max_fw_cmds - (MEGASAS_FUSION_INTERNAL_CMDS +
285 MEGASAS_FUSION_IOCTL_CMDS);
286 instance->host->can_queue = instance->cur_can_queue;
287 instance->ldio_threshold = ldio_threshold;
288 }
289 } else {
290 instance->max_fw_cmds = cur_max_fw_cmds;
291 instance->ldio_threshold = ldio_threshold;
292
c3e385a1
SS		 293 if (reset_devices)
294 instance->max_fw_cmds = min(instance->max_fw_cmds,
295 (u16)MEGASAS_KDUMP_QUEUE_DEPTH);
308ec459
SS		 296 /*
297 * Reduce the max supported cmds by 1. This is to ensure that the
298 * reply_q_sz (1 more than the max cmd that driver may send)
299 * does not exceed max cmds that the FW can support
300 */
301 instance->max_fw_cmds = instance->max_fw_cmds-1;
308ec459
SS		 302 }
303}
9c915a8c 304/**
179ac142
SS		 305 * megasas_free_cmds_fusion - Free all the cmds in the free cmd pool
306 * @instance: Adapter soft state
9c915a8c 307 */
179ac142
SS		 308void
309megasas_free_cmds_fusion(struct megasas_instance *instance)
9c915a8c
AR		 310{
311 int i;
312 struct fusion_context *fusion = instance->ctrl_context;
9c915a8c
AR		 313 struct megasas_cmd_fusion *cmd;
314
107a60dd
S		 315 if (fusion->sense)
316 dma_pool_free(fusion->sense_dma_pool, fusion->sense,
317 fusion->sense_phys_addr);
318
319 /* SG */
320 if (fusion->cmd_list) {
321 for (i = 0; i < instance->max_mpt_cmds; i++) {
322 cmd = fusion->cmd_list[i];
323 if (cmd) {
324 if (cmd->sg_frame)
325 dma_pool_free(fusion->sg_dma_pool,
326 cmd->sg_frame,
327 cmd->sg_frame_phys_addr);
328 }
329 kfree(cmd);
179ac142 330 }
107a60dd 331 kfree(fusion->cmd_list);
9c915a8c
AR		 332 }
333
179ac142 334 if (fusion->sg_dma_pool) {
fc69d86d 335 dma_pool_destroy(fusion->sg_dma_pool);
179ac142
SS		 336 fusion->sg_dma_pool = NULL;
337 }
338 if (fusion->sense_dma_pool) {
fc69d86d 339 dma_pool_destroy(fusion->sense_dma_pool);
179ac142
SS		 340 fusion->sense_dma_pool = NULL;
341 }
9c915a8c 342
9c915a8c 343
179ac142
SS		 344 /* Reply Frame, Desc*/
345 if (instance->is_rdpq)
346 megasas_free_rdpq_fusion(instance);
347 else
348 megasas_free_reply_fusion(instance);
9c915a8c 349
179ac142 350 /* Request Frame, Desc*/
9c915a8c 351 if (fusion->req_frames_desc)
179ac142
SS		 352 dma_free_coherent(&instance->pdev->dev,
353 fusion->request_alloc_sz, fusion->req_frames_desc,
354 fusion->req_frames_desc_phys);
355 if (fusion->io_request_frames)
fc69d86d 356 dma_pool_free(fusion->io_request_frames_pool,
179ac142
SS		 357 fusion->io_request_frames,
358 fusion->io_request_frames_phys);
359 if (fusion->io_request_frames_pool) {
fc69d86d 360 dma_pool_destroy(fusion->io_request_frames_pool);
179ac142 361 fusion->io_request_frames_pool = NULL;
9c915a8c 362 }
9c915a8c
AR		 363}
364
365/**
179ac142 366 * megasas_create_sg_sense_fusion - Creates DMA pool for cmd frames
9c915a8c
AR		 367 * @instance: Adapter soft state
368 *
369 */
179ac142 370static int megasas_create_sg_sense_fusion(struct megasas_instance *instance)
9c915a8c
AR		 371{
372 int i;
50b7f5a2 373 u16 max_cmd;
9c915a8c
AR		 374 struct fusion_context *fusion;
375 struct megasas_cmd_fusion *cmd;
107a60dd
S		 376 int sense_sz;
377 u32 offset;
9c915a8c
AR		 378
379 fusion = instance->ctrl_context;
380 max_cmd = instance->max_fw_cmds;
107a60dd 381 sense_sz = instance->max_mpt_cmds * SCSI_SENSE_BUFFERSIZE;
9c915a8c 382
179ac142 383 fusion->sg_dma_pool =
fc69d86d 384 dma_pool_create("mr_sg", &instance->pdev->dev,
15dd0381
S		 385 instance->max_chain_frame_sz,
386 MR_DEFAULT_NVME_PAGE_SIZE, 0);
179ac142
SS		 387 /* SCSI_SENSE_BUFFERSIZE = 96 bytes */
388 fusion->sense_dma_pool =
fc69d86d 389 dma_pool_create("mr_sense", &instance->pdev->dev,
107a60dd 390 sense_sz, 64, 0);
9c915a8c 391
179ac142
SS		 392 if (!fusion->sense_dma_pool || !fusion->sg_dma_pool) {
393 dev_err(&instance->pdev->dev,
394 "Failed from %s %d\n", __func__, __LINE__);
9c915a8c
AR		 395 return -ENOMEM;
396 }
397
107a60dd
S		 398 fusion->sense = dma_pool_alloc(fusion->sense_dma_pool,
399 GFP_KERNEL, &fusion->sense_phys_addr);
400 if (!fusion->sense) {
401 dev_err(&instance->pdev->dev,
402 "failed from %s %d\n", __func__, __LINE__);
403 return -ENOMEM;
404 }
405
406 /* sense buffer, request frame and reply desc pool requires to be in
407 * same 4 gb region. Below function will check this.
408 * In case of failure, new pci pool will be created with updated
409 * alignment.
410 * Older allocation and pool will be destroyed.
411 * Alignment will be used such a way that next allocation if success,
412 * will always meet same 4gb region requirement.
413 * Actual requirement is not alignment, but we need start and end of
414 * DMA address must have same upper 32 bit address.
415 */
416
417 if (!megasas_check_same_4gb_region(instance, fusion->sense_phys_addr,
418 sense_sz)) {
419 dma_pool_free(fusion->sense_dma_pool, fusion->sense,
420 fusion->sense_phys_addr);
421 fusion->sense = NULL;
422 dma_pool_destroy(fusion->sense_dma_pool);
423
424 fusion->sense_dma_pool =
425 dma_pool_create("mr_sense_align", &instance->pdev->dev,
426 sense_sz, roundup_pow_of_two(sense_sz),
427 0);
428 if (!fusion->sense_dma_pool) {
429 dev_err(&instance->pdev->dev,
430 "Failed from %s %d\n", __func__, __LINE__);
431 return -ENOMEM;
432 }
433 fusion->sense = dma_pool_alloc(fusion->sense_dma_pool,
434 GFP_KERNEL,
435 &fusion->sense_phys_addr);
436 if (!fusion->sense) {
437 dev_err(&instance->pdev->dev,
438 "failed from %s %d\n", __func__, __LINE__);
439 return -ENOMEM;
440 }
441 }
442
9c915a8c
AR		 443 /*
444 * Allocate and attach a frame to each of the commands in cmd_list
445 */
446 for (i = 0; i < max_cmd; i++) {
9c915a8c 447 cmd = fusion->cmd_list[i];
fc69d86d 448 cmd->sg_frame = dma_pool_alloc(fusion->sg_dma_pool,
179ac142 449 GFP_KERNEL, &cmd->sg_frame_phys_addr);
9c915a8c 450
107a60dd
S		 451 offset = SCSI_SENSE_BUFFERSIZE * i;
452 cmd->sense = (u8 *)fusion->sense + offset;
453 cmd->sense_phys_addr = fusion->sense_phys_addr + offset;
454
455 if (!cmd->sg_frame) {
179ac142
SS		 456 dev_err(&instance->pdev->dev,
457 "Failed from %s %d\n", __func__, __LINE__);
9c915a8c
AR		 458 return -ENOMEM;
459 }
460 }
69c337c0
SC		 461
462 /* create sense buffer for the raid 1/10 fp */
463 for (i = max_cmd; i < instance->max_mpt_cmds; i++) {
464 cmd = fusion->cmd_list[i];
107a60dd
S		 465 offset = SCSI_SENSE_BUFFERSIZE * i;
466 cmd->sense = (u8 *)fusion->sense + offset;
467 cmd->sense_phys_addr = fusion->sense_phys_addr + offset;
468
69c337c0
SC		 469 }
470
9c915a8c
AR		 471 return 0;
472}
473
9c915a8c 474int
179ac142 475megasas_alloc_cmdlist_fusion(struct megasas_instance *instance)
9c915a8c 476{
70c54e21 477 u32 max_mpt_cmd, i, j;
9c915a8c 478 struct fusion_context *fusion;
9c915a8c
AR		 479
480 fusion = instance->ctrl_context;
481
69c337c0 482 max_mpt_cmd = instance->max_mpt_cmds;
9c915a8c 483
179ac142
SS		 484 /*
485 * fusion->cmd_list is an array of struct megasas_cmd_fusion pointers.
486 * Allocate the dynamic array first and then allocate individual
487 * commands.
488 */
69c337c0
SC		 489 fusion->cmd_list =
490 kzalloc(sizeof(struct megasas_cmd_fusion *) * max_mpt_cmd,
491 GFP_KERNEL);
179ac142
SS		 492 if (!fusion->cmd_list) {
493 dev_err(&instance->pdev->dev,
494 "Failed from %s %d\n", __func__, __LINE__);
495 return -ENOMEM;
496 }
497
69c337c0 498 for (i = 0; i < max_mpt_cmd; i++) {
179ac142
SS		 499 fusion->cmd_list[i] = kzalloc(sizeof(struct megasas_cmd_fusion),
500 GFP_KERNEL);
501 if (!fusion->cmd_list[i]) {
70c54e21
SW		 502 for (j = 0; j < i; j++)
503 kfree(fusion->cmd_list[j]);
504 kfree(fusion->cmd_list);
179ac142
SS		 505 dev_err(&instance->pdev->dev,
506 "Failed from %s %d\n", __func__, __LINE__);
507 return -ENOMEM;
508 }
509 }
70c54e21 510
179ac142
SS		 511 return 0;
512}
513int
514megasas_alloc_request_fusion(struct megasas_instance *instance)
515{
516 struct fusion_context *fusion;
517
518 fusion = instance->ctrl_context;
519
e97e673c 520retry_alloc:
179ac142 521 fusion->io_request_frames_pool =
fc69d86d 522 dma_pool_create("mr_ioreq", &instance->pdev->dev,
179ac142
SS		 523 fusion->io_frames_alloc_sz, 16, 0);
524
525 if (!fusion->io_request_frames_pool) {
526 dev_err(&instance->pdev->dev,
527 "Failed from %s %d\n", __func__, __LINE__);
528 return -ENOMEM;
529 }
530
531 fusion->io_request_frames =
fc69d86d 532 dma_pool_alloc(fusion->io_request_frames_pool,
179ac142
SS		 533 GFP_KERNEL, &fusion->io_request_frames_phys);
534 if (!fusion->io_request_frames) {
e97e673c
S		 535 if (instance->max_fw_cmds >= (MEGASAS_REDUCE_QD_COUNT * 2)) {
536 instance->max_fw_cmds -= MEGASAS_REDUCE_QD_COUNT;
537 dma_pool_destroy(fusion->io_request_frames_pool);
538 megasas_configure_queue_sizes(instance);
539 goto retry_alloc;
540 } else {
541 dev_err(&instance->pdev->dev,
542 "Failed from %s %d\n", __func__, __LINE__);
543 return -ENOMEM;
544 }
545 }
546
107a60dd
S		 547 if (!megasas_check_same_4gb_region(instance,
548 fusion->io_request_frames_phys,
549 fusion->io_frames_alloc_sz)) {
550 dma_pool_free(fusion->io_request_frames_pool,
551 fusion->io_request_frames,
552 fusion->io_request_frames_phys);
553 fusion->io_request_frames = NULL;
554 dma_pool_destroy(fusion->io_request_frames_pool);
555
556 fusion->io_request_frames_pool =
557 dma_pool_create("mr_ioreq_align",
558 &instance->pdev->dev,
559 fusion->io_frames_alloc_sz,
560 roundup_pow_of_two(fusion->io_frames_alloc_sz),
561 0);
562
563 if (!fusion->io_request_frames_pool) {
564 dev_err(&instance->pdev->dev,
565 "Failed from %s %d\n", __func__, __LINE__);
566 return -ENOMEM;
567 }
568
569 fusion->io_request_frames =
570 dma_pool_alloc(fusion->io_request_frames_pool,
571 GFP_KERNEL,
572 &fusion->io_request_frames_phys);
573
574 if (!fusion->io_request_frames) {
575 dev_err(&instance->pdev->dev,
576 "Failed from %s %d\n", __func__, __LINE__);
577 return -ENOMEM;
578 }
579 }
580
e97e673c
S		 581 fusion->req_frames_desc =
582 dma_alloc_coherent(&instance->pdev->dev,
583 fusion->request_alloc_sz,
584 &fusion->req_frames_desc_phys, GFP_KERNEL);
585 if (!fusion->req_frames_desc) {
179ac142
SS		 586 dev_err(&instance->pdev->dev,
587 "Failed from %s %d\n", __func__, __LINE__);
588 return -ENOMEM;
589 }
e97e673c 590
179ac142
SS		 591 return 0;
592}
593
594int
595megasas_alloc_reply_fusion(struct megasas_instance *instance)
596{
597 int i, count;
598 struct fusion_context *fusion;
599 union MPI2_REPLY_DESCRIPTORS_UNION *reply_desc;
600 fusion = instance->ctrl_context;
601
c8e858fe 602 count = instance->msix_vectors > 0 ? instance->msix_vectors : 1;
9c915a8c 603 fusion->reply_frames_desc_pool =
fc69d86d 604 dma_pool_create("mr_reply", &instance->pdev->dev,
c8e858fe 605 fusion->reply_alloc_sz * count, 16, 0);
9c915a8c
AR		 606
607 if (!fusion->reply_frames_desc_pool) {
179ac142
SS		 608 dev_err(&instance->pdev->dev,
609 "Failed from %s %d\n", __func__, __LINE__);
610 return -ENOMEM;
9c915a8c
AR		 611 }
612
179ac142 613 fusion->reply_frames_desc[0] =
fc69d86d 614 dma_pool_alloc(fusion->reply_frames_desc_pool,
179ac142
SS		 615 GFP_KERNEL, &fusion->reply_frames_desc_phys[0]);
616 if (!fusion->reply_frames_desc[0]) {
617 dev_err(&instance->pdev->dev,
618 "Failed from %s %d\n", __func__, __LINE__);
619 return -ENOMEM;
9c915a8c 620 }
107a60dd
S		 621
622 if (!megasas_check_same_4gb_region(instance,
623 fusion->reply_frames_desc_phys[0],
624 (fusion->reply_alloc_sz * count))) {
625 dma_pool_free(fusion->reply_frames_desc_pool,
626 fusion->reply_frames_desc[0],
627 fusion->reply_frames_desc_phys[0]);
628 fusion->reply_frames_desc[0] = NULL;
629 dma_pool_destroy(fusion->reply_frames_desc_pool);
630
631 fusion->reply_frames_desc_pool =
632 dma_pool_create("mr_reply_align",
633 &instance->pdev->dev,
634 fusion->reply_alloc_sz * count,
635 roundup_pow_of_two(fusion->reply_alloc_sz * count),
636 0);
637
638 if (!fusion->reply_frames_desc_pool) {
639 dev_err(&instance->pdev->dev,
640 "Failed from %s %d\n", __func__, __LINE__);
641 return -ENOMEM;
642 }
643
644 fusion->reply_frames_desc[0] =
645 dma_pool_alloc(fusion->reply_frames_desc_pool,
646 GFP_KERNEL,
647 &fusion->reply_frames_desc_phys[0]);
648
649 if (!fusion->reply_frames_desc[0]) {
650 dev_err(&instance->pdev->dev,
651 "Failed from %s %d\n", __func__, __LINE__);
652 return -ENOMEM;
653 }
654 }
655
179ac142 656 reply_desc = fusion->reply_frames_desc[0];
c8e858fe 657 for (i = 0; i < fusion->reply_q_depth * count; i++, reply_desc++)
c6f5bf81 658 reply_desc->Words = cpu_to_le64(ULLONG_MAX);
9c915a8c 659
179ac142
SS		 660 /* This is not a rdpq mode, but driver still populate
661 * reply_frame_desc array to use same msix index in ISR path.
662 */
663 for (i = 0; i < (count - 1); i++)
664 fusion->reply_frames_desc[i + 1] =
665 fusion->reply_frames_desc[i] +
666 (fusion->reply_alloc_sz)/sizeof(union MPI2_REPLY_DESCRIPTORS_UNION);
9c915a8c 667
179ac142
SS		 668 return 0;
669}
9c915a8c 670
179ac142
SS		 671int
672megasas_alloc_rdpq_fusion(struct megasas_instance *instance)
673{
107a60dd 674 int i, j, k, msix_count;
179ac142
SS		 675 struct fusion_context *fusion;
676 union MPI2_REPLY_DESCRIPTORS_UNION *reply_desc;
107a60dd
S		 677 union MPI2_REPLY_DESCRIPTORS_UNION *rdpq_chunk_virt[RDPQ_MAX_CHUNK_COUNT];
678 dma_addr_t rdpq_chunk_phys[RDPQ_MAX_CHUNK_COUNT];
679 u8 dma_alloc_count, abs_index;
680 u32 chunk_size, array_size, offset;
179ac142
SS		 681
682 fusion = instance->ctrl_context;
107a60dd
S		 683 chunk_size = fusion->reply_alloc_sz * RDPQ_MAX_INDEX_IN_ONE_CHUNK;
684 array_size = sizeof(struct MPI2_IOC_INIT_RDPQ_ARRAY_ENTRY) *
685 MAX_MSIX_QUEUES_FUSION;
179ac142 686
107a60dd
S		 687 fusion->rdpq_virt = pci_alloc_consistent(instance->pdev, array_size,
688 &fusion->rdpq_phys);
179ac142
SS		 689 if (!fusion->rdpq_virt) {
690 dev_err(&instance->pdev->dev,
691 "Failed from %s %d\n", __func__, __LINE__);
692 return -ENOMEM;
9c915a8c
AR		 693 }
694
107a60dd
S		 695 memset(fusion->rdpq_virt, 0, array_size);
696 msix_count = instance->msix_vectors > 0 ? instance->msix_vectors : 1;
697
fc69d86d
RP		 698 fusion->reply_frames_desc_pool = dma_pool_create("mr_rdpq",
699 &instance->pdev->dev,
107a60dd
S		 700 chunk_size, 16, 0);
701 fusion->reply_frames_desc_pool_align =
702 dma_pool_create("mr_rdpq_align",
703 &instance->pdev->dev,
704 chunk_size,
705 roundup_pow_of_two(chunk_size),
706 0);
707
708 if (!fusion->reply_frames_desc_pool ||
709 !fusion->reply_frames_desc_pool_align) {
179ac142
SS		 710 dev_err(&instance->pdev->dev,
711 "Failed from %s %d\n", __func__, __LINE__);
712 return -ENOMEM;
9c915a8c
AR		 713 }
714
107a60dd
S		 715/*
716 * For INVADER_SERIES each set of 8 reply queues(0-7, 8-15, ..) and
717 * VENTURA_SERIES each set of 16 reply queues(0-15, 16-31, ..) should be
718 * within 4GB boundary and also reply queues in a set must have same
719 * upper 32-bits in their memory address. so here driver is allocating the
720 * DMA'able memory for reply queues according. Driver uses limitation of
721 * VENTURA_SERIES to manage INVADER_SERIES as well.
722 */
723 dma_alloc_count = DIV_ROUND_UP(msix_count, RDPQ_MAX_INDEX_IN_ONE_CHUNK);
724
725 for (i = 0; i < dma_alloc_count; i++) {
726 rdpq_chunk_virt[i] =
727 dma_pool_alloc(fusion->reply_frames_desc_pool,
728 GFP_KERNEL, &rdpq_chunk_phys[i]);
729 if (!rdpq_chunk_virt[i]) {
179ac142
SS		 730 dev_err(&instance->pdev->dev,
731 "Failed from %s %d\n", __func__, __LINE__);
732 return -ENOMEM;
733 }
107a60dd
S		 734 /* reply desc pool requires to be in same 4 gb region.
735 * Below function will check this.
736 * In case of failure, new pci pool will be created with updated
737 * alignment.
738 * For RDPQ buffers, driver always allocate two separate pci pool.
739 * Alignment will be used such a way that next allocation if
740 * success, will always meet same 4gb region requirement.
741 * rdpq_tracker keep track of each buffer's physical,
742 * virtual address and pci pool descriptor. It will help driver
743 * while freeing the resources.
744 *
745 */
746 if (!megasas_check_same_4gb_region(instance, rdpq_chunk_phys[i],
747 chunk_size)) {
748 dma_pool_free(fusion->reply_frames_desc_pool,
749 rdpq_chunk_virt[i],
750 rdpq_chunk_phys[i]);
9c915a8c 751
107a60dd
S		 752 rdpq_chunk_virt[i] =
753 dma_pool_alloc(fusion->reply_frames_desc_pool_align,
754 GFP_KERNEL, &rdpq_chunk_phys[i]);
755 if (!rdpq_chunk_virt[i]) {
756 dev_err(&instance->pdev->dev,
757 "Failed from %s %d\n",
758 __func__, __LINE__);
759 return -ENOMEM;
760 }
761 fusion->rdpq_tracker[i].dma_pool_ptr =
762 fusion->reply_frames_desc_pool_align;
763 } else {
764 fusion->rdpq_tracker[i].dma_pool_ptr =
765 fusion->reply_frames_desc_pool;
766 }
179ac142 767
107a60dd
S		 768 fusion->rdpq_tracker[i].pool_entry_phys = rdpq_chunk_phys[i];
769 fusion->rdpq_tracker[i].pool_entry_virt = rdpq_chunk_virt[i];
9c915a8c 770 }
107a60dd
S		 771
772 for (k = 0; k < dma_alloc_count; k++) {
773 for (i = 0; i < RDPQ_MAX_INDEX_IN_ONE_CHUNK; i++) {
774 abs_index = (k * RDPQ_MAX_INDEX_IN_ONE_CHUNK) + i;
775
776 if (abs_index == msix_count)
777 break;
778 offset = fusion->reply_alloc_sz * i;
779 fusion->rdpq_virt[abs_index].RDPQBaseAddress =
780 cpu_to_le64(rdpq_chunk_phys[k] + offset);
781 fusion->reply_frames_desc_phys[abs_index] =
782 rdpq_chunk_phys[k] + offset;
783 fusion->reply_frames_desc[abs_index] =
784 (union MPI2_REPLY_DESCRIPTORS_UNION *)((u8 *)rdpq_chunk_virt[k] + offset);
785
786 reply_desc = fusion->reply_frames_desc[abs_index];
787 for (j = 0; j < fusion->reply_q_depth; j++, reply_desc++)
788 reply_desc->Words = ULLONG_MAX;
789 }
790 }
791
179ac142
SS		 792 return 0;
793}
9c915a8c 794
179ac142
SS		 795static void
796megasas_free_rdpq_fusion(struct megasas_instance *instance) {
9c915a8c 797
179ac142
SS		 798 int i;
799 struct fusion_context *fusion;
9c915a8c 800
179ac142
SS		 801 fusion = instance->ctrl_context;
802
107a60dd
S		 803 for (i = 0; i < RDPQ_MAX_CHUNK_COUNT; i++) {
804 if (fusion->rdpq_tracker[i].pool_entry_virt)
805 dma_pool_free(fusion->rdpq_tracker[i].dma_pool_ptr,
806 fusion->rdpq_tracker[i].pool_entry_virt,
807 fusion->rdpq_tracker[i].pool_entry_phys);
808
9c915a8c
AR		 809 }
810
179ac142 811 if (fusion->reply_frames_desc_pool)
fc69d86d 812 dma_pool_destroy(fusion->reply_frames_desc_pool);
107a60dd
S		 813 if (fusion->reply_frames_desc_pool_align)
814 dma_pool_destroy(fusion->reply_frames_desc_pool_align);
179ac142
SS		 815
816 if (fusion->rdpq_virt)
817 pci_free_consistent(instance->pdev,
818 sizeof(struct MPI2_IOC_INIT_RDPQ_ARRAY_ENTRY) * MAX_MSIX_QUEUES_FUSION,
819 fusion->rdpq_virt, fusion->rdpq_phys);
820}
821
822static void
823megasas_free_reply_fusion(struct megasas_instance *instance) {
824
825 struct fusion_context *fusion;
826
827 fusion = instance->ctrl_context;
828
829 if (fusion->reply_frames_desc[0])
fc69d86d 830 dma_pool_free(fusion->reply_frames_desc_pool,
179ac142
SS		 831 fusion->reply_frames_desc[0],
832 fusion->reply_frames_desc_phys[0]);
833
834 if (fusion->reply_frames_desc_pool)
fc69d86d 835 dma_pool_destroy(fusion->reply_frames_desc_pool);
179ac142
SS		 836
837}
838
839
840/**
841 * megasas_alloc_cmds_fusion - Allocates the command packets
842 * @instance: Adapter soft state
843 *
844 *
845 * Each frame has a 32-bit field called context. This context is used to get
846 * back the megasas_cmd_fusion from the frame when a frame gets completed
847 * In this driver, the 32 bit values are the indices into an array cmd_list.
848 * This array is used only to look up the megasas_cmd_fusion given the context.
849 * The free commands themselves are maintained in a linked list called cmd_pool.
850 *
851 * cmds are formed in the io_request and sg_frame members of the
852 * megasas_cmd_fusion. The context field is used to get a request descriptor
853 * and is used as SMID of the cmd.
854 * SMID value range is from 1 to max_fw_cmds.
855 */
856int
857megasas_alloc_cmds_fusion(struct megasas_instance *instance)
858{
859 int i;
860 struct fusion_context *fusion;
861 struct megasas_cmd_fusion *cmd;
862 u32 offset;
863 dma_addr_t io_req_base_phys;
864 u8 *io_req_base;
865
866
867 fusion = instance->ctrl_context;
868
179ac142
SS		 869 if (megasas_alloc_request_fusion(instance))
870 goto fail_exit;
871
872 if (instance->is_rdpq) {
873 if (megasas_alloc_rdpq_fusion(instance))
874 goto fail_exit;
875 } else
876 if (megasas_alloc_reply_fusion(instance))
877 goto fail_exit;
878
e97e673c
S		 879 if (megasas_alloc_cmdlist_fusion(instance))
880 goto fail_exit;
881
882 dev_info(&instance->pdev->dev, "Configured max firmware commands: %d\n",
883 instance->max_fw_cmds);
179ac142
SS		 884
885 /* The first 256 bytes (SMID 0) is not used. Don't add to the cmd list */
886 io_req_base = fusion->io_request_frames + MEGA_MPI2_RAID_DEFAULT_IO_FRAME_SIZE;
887 io_req_base_phys = fusion->io_request_frames_phys + MEGA_MPI2_RAID_DEFAULT_IO_FRAME_SIZE;
9c915a8c
AR		 888
889 /*
890 * Add all the commands to command pool (fusion->cmd_pool)
891 */
892
893 /* SMID 0 is reserved. Set SMID/index from 1 */
69c337c0 894 for (i = 0; i < instance->max_mpt_cmds; i++) {
9c915a8c
AR		 895 cmd = fusion->cmd_list[i];
896 offset = MEGA_MPI2_RAID_DEFAULT_IO_FRAME_SIZE * i;
897 memset(cmd, 0, sizeof(struct megasas_cmd_fusion));
898 cmd->index = i + 1;
899 cmd->scmd = NULL;
69c337c0
SC		 900 cmd->sync_cmd_idx =
901 (i >= instance->max_scsi_cmds && i < instance->max_fw_cmds) ?
4026e9aa
SS		 902 (i - instance->max_scsi_cmds) :
903 (u32)ULONG_MAX; /* Set to Invalid */
9c915a8c
AR		 904 cmd->instance = instance;
905 cmd->io_request =
906 (struct MPI2_RAID_SCSI_IO_REQUEST *)
907 (io_req_base + offset);
908 memset(cmd->io_request, 0,
909 sizeof(struct MPI2_RAID_SCSI_IO_REQUEST));
910 cmd->io_request_phys_addr = io_req_base_phys + offset;
8bf7c65d 911 cmd->r1_alt_dev_handle = MR_DEVHANDLE_INVALID;
9c915a8c
AR		 912 }
913
179ac142
SS		 914 if (megasas_create_sg_sense_fusion(instance))
915 goto fail_exit;
9c915a8c
AR		 916
917 return 0;
918
179ac142
SS		 919fail_exit:
920 megasas_free_cmds_fusion(instance);
9c915a8c
AR		 921 return -ENOMEM;
922}
923
924/**
925 * wait_and_poll - Issues a polling command
926 * @instance: Adapter soft state
927 * @cmd: Command packet to be issued
928 *
929 * For polling, MFI requires the cmd_status to be set to 0xFF before posting.
930 */
931int
229fe47c
AR		 932wait_and_poll(struct megasas_instance *instance, struct megasas_cmd *cmd,
933 int seconds)
9c915a8c
AR		 934{
935 int i;
936 struct megasas_header *frame_hdr = &cmd->frame->hdr;
90dc9d98 937 struct fusion_context *fusion;
9c915a8c 938
229fe47c 939 u32 msecs = seconds * 1000;
9c915a8c 940
90dc9d98 941 fusion = instance->ctrl_context;
9c915a8c
AR		 942 /*
943 * Wait for cmd_status to change
944 */
945 for (i = 0; (i < msecs) && (frame_hdr->cmd_status == 0xff); i += 20) {
946 rmb();
947 msleep(20);
948 }
949
6d40afbc
SS		 950 if (frame_hdr->cmd_status == MFI_STAT_INVALID_STATUS)
951 return DCMD_TIMEOUT;
952 else if (frame_hdr->cmd_status == MFI_STAT_OK)
953 return DCMD_SUCCESS;
954 else
955 return DCMD_FAILED;
9c915a8c
AR		 956}
957
958/**
959 * megasas_ioc_init_fusion - Initializes the FW
960 * @instance: Adapter soft state
961 *
962 * Issues the IOC Init cmd
963 */
964int
965megasas_ioc_init_fusion(struct megasas_instance *instance)
966{
967 struct megasas_init_frame *init_frame;
179ac142 968 struct MPI2_IOC_INIT_REQUEST *IOCInitMessage = NULL;
9c915a8c 969 dma_addr_t ioc_init_handle;
9c915a8c 970 struct megasas_cmd *cmd;
179ac142 971 u8 ret, cur_rdpq_mode;
9c915a8c 972 struct fusion_context *fusion;
c77a9bd8 973 union MEGASAS_REQUEST_DESCRIPTOR_UNION req_desc;
9c915a8c
AR		 974 int i;
975 struct megasas_header *frame_hdr;
5765c5b8 976 const char *sys_info;
4dbbe3ce 977 MFI_CAPABILITIES *drv_ops;
179ac142 978 u32 scratch_pad_2;
b99fc202 979 struct timeval tv;
107a60dd 980 bool cur_fw_64bit_dma_capable;
9c915a8c
AR		 981
982 fusion = instance->ctrl_context;
983
9b3d028f
S		 984 ioc_init_handle = fusion->ioc_init_request_phys;
985 IOCInitMessage = fusion->ioc_init_request;
9c915a8c 986
b9637d14 987 cmd = fusion->ioc_init_cmd;
9c915a8c 988
179ac142
SS		 989 scratch_pad_2 = readl
990 (&instance->reg_set->outbound_scratch_pad_2);
991
992 cur_rdpq_mode = (scratch_pad_2 & MR_RDPQ_MODE_OFFSET) ? 1 : 0;
993
107a60dd
S		 994 if (instance->adapter_type == INVADER_SERIES) {
995 cur_fw_64bit_dma_capable =
996 (scratch_pad_2 & MR_CAN_HANDLE_64_BIT_DMA_OFFSET) ? true : false;
997
998 if (instance->consistent_mask_64bit && !cur_fw_64bit_dma_capable) {
999 dev_err(&instance->pdev->dev, "Driver was operating on 64bit "
1000 "DMA mask, but upcoming FW does not support 64bit DMA mask\n");
1001 megaraid_sas_kill_hba(instance);
1002 ret = 1;
1003 goto fail_fw_init;
1004 }
1005 }
1006
179ac142
SS		 1007 if (instance->is_rdpq && !cur_rdpq_mode) {
1008 dev_err(&instance->pdev->dev, "Firmware downgrade *NOT SUPPORTED*"
1009 " from RDPQ mode to non RDPQ mode\n");
1010 ret = 1;
1011 goto fail_fw_init;
1012 }
1013
d0fc91d6
KD		 1014 instance->fw_sync_cache_support = (scratch_pad_2 &
1015 MR_CAN_HANDLE_SYNC_CACHE_OFFSET) ? 1 : 0;
1016 dev_info(&instance->pdev->dev, "FW supports sync cache\t: %s\n",
1017 instance->fw_sync_cache_support ? "Yes" : "No");
1018
9c915a8c
AR		 1019 memset(IOCInitMessage, 0, sizeof(struct MPI2_IOC_INIT_REQUEST));
1020
1021 IOCInitMessage->Function = MPI2_FUNCTION_IOC_INIT;
1022 IOCInitMessage->WhoInit = MPI2_WHOINIT_HOST_DRIVER;
94cd65dd
SS		 1023 IOCInitMessage->MsgVersion = cpu_to_le16(MPI2_VERSION);
1024 IOCInitMessage->HeaderVersion = cpu_to_le16(MPI2_HEADER_VERSION);
1025 IOCInitMessage->SystemRequestFrameSize = cpu_to_le16(MEGA_MPI2_RAID_DEFAULT_IO_FRAME_SIZE / 4);
1026
1027 IOCInitMessage->ReplyDescriptorPostQueueDepth = cpu_to_le16(fusion->reply_q_depth);
179ac142
SS		 1028 IOCInitMessage->ReplyDescriptorPostQueueAddress = instance->is_rdpq ?
1029 cpu_to_le64(fusion->rdpq_phys) :
1030 cpu_to_le64(fusion->reply_frames_desc_phys[0]);
1031 IOCInitMessage->MsgFlags = instance->is_rdpq ?
1032 MPI2_IOCINIT_MSGFLAG_RDPQ_ARRAY_MODE : 0;
94cd65dd 1033 IOCInitMessage->SystemRequestFrameBaseAddress = cpu_to_le64(fusion->io_request_frames_phys);
107a60dd 1034 IOCInitMessage->SenseBufferAddressHigh = cpu_to_le32(upper_32_bits(fusion->sense_phys_addr));
5738f996 1035 IOCInitMessage->HostMSIxVectors = instance->msix_vectors;
15dd0381 1036 IOCInitMessage->HostPageSize = MR_DEFAULT_NVME_PAGE_SHIFT;
b99fc202
S		 1037
1038 do_gettimeofday(&tv);
1039 /* Convert to milliseconds as per FW requirement */
1040 IOCInitMessage->TimeStamp = cpu_to_le64((tv.tv_sec * 1000) +
1041 (tv.tv_usec / 1000));
1042
9c915a8c
AR		 1043 init_frame = (struct megasas_init_frame *)cmd->frame;
1044 memset(init_frame, 0, MEGAMFI_FRAME_SIZE);
1045
1046 frame_hdr = &cmd->frame->hdr;
9c915a8c 1047 frame_hdr->cmd_status = 0xFF;
48433bd7
CH		 1048 frame_hdr->flags = cpu_to_le16(
1049 le16_to_cpu(frame_hdr->flags) |
1050 MFI_FRAME_DONT_POST_IN_REPLY_QUEUE);
9c915a8c
AR		 1051
1052 init_frame->cmd = MFI_CMD_INIT;
1053 init_frame->cmd_status = 0xFF;
1054
4dbbe3ce 1055 drv_ops = (MFI_CAPABILITIES *) &(init_frame->driver_operations);
1056
d46a3ad6 1057 /* driver support Extended MSIX */
c365178f 1058 if (instance->adapter_type >= INVADER_SERIES)
4dbbe3ce 1059 drv_ops->mfi_capabilities.support_additional_msix = 1;
21c9e160 1060 /* driver supports HA / Remote LUN over Fast Path interface */
4dbbe3ce 1061 drv_ops->mfi_capabilities.support_fp_remote_lun = 1;
1062
1063 drv_ops->mfi_capabilities.support_max_255lds = 1;
1064 drv_ops->mfi_capabilities.support_ndrive_r1_lb = 1;
1065 drv_ops->mfi_capabilities.security_protocol_cmds_fw = 1;
1066
bd5f9484 1067 if (instance->max_chain_frame_sz > MEGASAS_CHAIN_FRAME_SZ_MIN)
1068 drv_ops->mfi_capabilities.support_ext_io_size = 1;
1069
8f05024c 1070 drv_ops->mfi_capabilities.support_fp_rlbypass = 1;
308ec459
SS		 1071 if (!dual_qdepth_disable)
1072 drv_ops->mfi_capabilities.support_ext_queue_depth = 1;
8f05024c 1073
52b62ac7 1074 drv_ops->mfi_capabilities.support_qd_throttling = 1;
ede7c3ce 1075 drv_ops->mfi_capabilities.support_pd_map_target_id = 1;
107a60dd
S		 1076
1077 if (instance->consistent_mask_64bit)
1078 drv_ops->mfi_capabilities.support_64bit_mode = 1;
1079
94cd65dd
SS		 1080 /* Convert capability to LE32 */
1081 cpu_to_le32s((u32 *)&init_frame->driver_operations.mfi_capabilities);
21c9e160 1082
5765c5b8
SS		 1083 sys_info = dmi_get_system_info(DMI_PRODUCT_UUID);
1084 if (instance->system_info_buf && sys_info) {
1085 memcpy(instance->system_info_buf->systemId, sys_info,
1086 strlen(sys_info) > 64 ? 64 : strlen(sys_info));
1087 instance->system_info_buf->systemIdLength =
1088 strlen(sys_info) > 64 ? 64 : strlen(sys_info);
107a60dd
S		 1089 init_frame->system_info_lo = cpu_to_le32(lower_32_bits(instance->system_info_h));
1090 init_frame->system_info_hi = cpu_to_le32(upper_32_bits(instance->system_info_h));
5765c5b8
SS		 1091 }
1092
fdc5a97c
HR		 1093 init_frame->queue_info_new_phys_addr_hi =
1094 cpu_to_le32(upper_32_bits(ioc_init_handle));
1095 init_frame->queue_info_new_phys_addr_lo =
1096 cpu_to_le32(lower_32_bits(ioc_init_handle));
94cd65dd 1097 init_frame->data_xfer_len = cpu_to_le32(sizeof(struct MPI2_IOC_INIT_REQUEST));
9c915a8c 1098
200aed58
SS		 1099 req_desc.u.low = cpu_to_le32(lower_32_bits(cmd->frame_phys_addr));
1100 req_desc.u.high = cpu_to_le32(upper_32_bits(cmd->frame_phys_addr));
c77a9bd8 1101 req_desc.MFAIo.RequestFlags =
9c915a8c 1102 (MEGASAS_REQ_DESCRIPT_FLAGS_MFA <<
200aed58 1103 MEGASAS_REQ_DESCRIPT_FLAGS_TYPE_SHIFT);
9c915a8c
AR		 1104
1105 /*
1106 * disable the intr before firing the init frame
1107 */
d46a3ad6 1108 instance->instancet->disable_intr(instance);
9c915a8c
AR		 1109
1110 for (i = 0; i < (10 * 1000); i += 20) {
1111 if (readl(&instance->reg_set->doorbell) & 1)
1112 msleep(20);
1113 else
1114 break;
1115 }
1116
2ff925cb 1117 megasas_fire_cmd_fusion(instance, &req_desc);
9c915a8c 1118
229fe47c 1119 wait_and_poll(instance, cmd, MFI_POLL_TIMEOUT_SECS);
9c915a8c
AR		 1120
1121 frame_hdr = &cmd->frame->hdr;
1122 if (frame_hdr->cmd_status != 0) {
1123 ret = 1;
1124 goto fail_fw_init;
1125 }
9c915a8c
AR		 1126
1127 ret = 0;
1128
1129fail_fw_init:
2d2c2331
S		 1130 dev_err(&instance->pdev->dev,
1131 "Init cmd return status %s for SCSI host %d\n",
1132 ret ? "FAILED" : "SUCCESS", instance->host->host_no);
1133
9c915a8c
AR		 1134 return ret;
1135}
1136
3761cb4c 1137/**
1138 * megasas_sync_pd_seq_num - JBOD SEQ MAP
1139 * @instance: Adapter soft state
1140 * @pend: set to 1, if it is pended jbod map.
1141 *
1142 * Issue Jbod map to the firmware. If it is pended command,
1143 * issue command and return. If it is first instance of jbod map
1144 * issue and receive command.
1145 */
1146int
1147megasas_sync_pd_seq_num(struct megasas_instance *instance, bool pend) {
1148 int ret = 0;
1149 u32 pd_seq_map_sz;
1150 struct megasas_cmd *cmd;
1151 struct megasas_dcmd_frame *dcmd;
1152 struct fusion_context *fusion = instance->ctrl_context;
1153 struct MR_PD_CFG_SEQ_NUM_SYNC *pd_sync;
1154 dma_addr_t pd_seq_h;
1155
1156 pd_sync = (void *)fusion->pd_seq_sync[(instance->pd_seq_map_id & 1)];
1157 pd_seq_h = fusion->pd_seq_phys[(instance->pd_seq_map_id & 1)];
1158 pd_seq_map_sz = sizeof(struct MR_PD_CFG_SEQ_NUM_SYNC) +
1159 (sizeof(struct MR_PD_CFG_SEQ) *
1160 (MAX_PHYSICAL_DEVICES - 1));
1161
1162 cmd = megasas_get_cmd(instance);
1163 if (!cmd) {
1164 dev_err(&instance->pdev->dev,
1165 "Could not get mfi cmd. Fail from %s %d\n",
1166 __func__, __LINE__);
1167 return -ENOMEM;
1168 }
1169
1170 dcmd = &cmd->frame->dcmd;
1171
1172 memset(pd_sync, 0, pd_seq_map_sz);
1173 memset(dcmd->mbox.b, 0, MFI_MBOX_SIZE);
107a60dd
S		 1174
1175 if (pend) {
1176 dcmd->mbox.b[0] = MEGASAS_DCMD_MBOX_PEND_FLAG;
1177 dcmd->flags = MFI_FRAME_DIR_WRITE;
1178 instance->jbod_seq_cmd = cmd;
1179 } else {
1180 dcmd->flags = MFI_FRAME_DIR_READ;
1181 }
1182
3761cb4c 1183 dcmd->cmd = MFI_CMD_DCMD;
1184 dcmd->cmd_status = 0xFF;
1185 dcmd->sge_count = 1;
1186 dcmd->timeout = 0;
1187 dcmd->pad_0 = 0;
1188 dcmd->data_xfer_len = cpu_to_le32(pd_seq_map_sz);
1189 dcmd->opcode = cpu_to_le32(MR_DCMD_SYSTEM_PD_MAP_GET_INFO);
107a60dd
S		 1190
1191 megasas_set_dma_settings(instance, dcmd, pd_seq_h, pd_seq_map_sz);
3761cb4c 1192
1193 if (pend) {
3761cb4c 1194 instance->instancet->issue_dcmd(instance, cmd);
1195 return 0;
1196 }
1197
3761cb4c 1198 /* Below code is only for non pended DCMD */
55fecaec 1199 if (!instance->mask_interrupts)
6d40afbc
SS		 1200 ret = megasas_issue_blocked_cmd(instance, cmd,
1201 MFI_IO_TIMEOUT_SECS);
3761cb4c 1202 else
1203 ret = megasas_issue_polled(instance, cmd);
1204
1205 if (le32_to_cpu(pd_sync->count) > MAX_PHYSICAL_DEVICES) {
1206 dev_warn(&instance->pdev->dev,
1207 "driver supports max %d JBOD, but FW reports %d\n",
1208 MAX_PHYSICAL_DEVICES, le32_to_cpu(pd_sync->count));
1209 ret = -EINVAL;
1210 }
1211
55fecaec 1212 if (ret == DCMD_TIMEOUT)
6d40afbc
SS		 1213 megaraid_sas_kill_hba(instance);
1214
1215 if (ret == DCMD_SUCCESS)
3761cb4c 1216 instance->pd_seq_map_id++;
1217
1218 megasas_return_cmd(instance, cmd);
1219 return ret;
1220}
1221
9c915a8c
AR		 1222/*
1223 * megasas_get_ld_map_info - Returns FW's ld_map structure
1224 * @instance: Adapter soft state
1225 * @pend: Pend the command or not
1226 * Issues an internal command (DCMD) to get the FW's controller PD
1227 * list structure. This information is mainly used to find out SYSTEM
1228 * supported by the FW.
51087a86
SS		 1229 * dcmd.mbox value setting for MR_DCMD_LD_MAP_GET_INFO
1230 * dcmd.mbox.b[0] - number of LDs being sync'd
1231 * dcmd.mbox.b[1] - 0 - complete command immediately.
1232 * - 1 - pend till config change
1233 * dcmd.mbox.b[2] - 0 - supports max 64 lds and uses legacy MR_FW_RAID_MAP
1234 * - 1 - supports max MAX_LOGICAL_DRIVES_EXT lds and
1235 * uses extended struct MR_FW_RAID_MAP_EXT
9c915a8c
AR		 1236 */
1237static int
1238megasas_get_ld_map_info(struct megasas_instance *instance)
1239{
1240 int ret = 0;
1241 struct megasas_cmd *cmd;
1242 struct megasas_dcmd_frame *dcmd;
51087a86 1243 void *ci;
9c915a8c
AR		 1244 dma_addr_t ci_h = 0;
1245 u32 size_map_info;
1246 struct fusion_context *fusion;
1247
1248 cmd = megasas_get_cmd(instance);
1249
1250 if (!cmd) {
1be18254 1251 dev_printk(KERN_DEBUG, &instance->pdev->dev, "Failed to get cmd for map info\n");
9c915a8c
AR		 1252 return -ENOMEM;
1253 }
1254
1255 fusion = instance->ctrl_context;
1256
1257 if (!fusion) {
1258 megasas_return_cmd(instance, cmd);
2f8bdfa8 1259 return -ENXIO;
9c915a8c
AR		 1260 }
1261
1262 dcmd = &cmd->frame->dcmd;
1263
51087a86 1264 size_map_info = fusion->current_map_sz;
9c915a8c 1265
51087a86 1266 ci = (void *) fusion->ld_map[(instance->map_id & 1)];
9c915a8c
AR		 1267 ci_h = fusion->ld_map_phys[(instance->map_id & 1)];
1268
1269 if (!ci) {
1be18254 1270 dev_printk(KERN_DEBUG, &instance->pdev->dev, "Failed to alloc mem for ld_map_info\n");
9c915a8c
AR		 1271 megasas_return_cmd(instance, cmd);
1272 return -ENOMEM;
1273 }
1274
51087a86 1275 memset(ci, 0, fusion->max_map_sz);
9c915a8c 1276 memset(dcmd->mbox.b, 0, MFI_MBOX_SIZE);
9c915a8c
AR		 1277 dcmd->cmd = MFI_CMD_DCMD;
1278 dcmd->cmd_status = 0xFF;
1279 dcmd->sge_count = 1;
107a60dd 1280 dcmd->flags = MFI_FRAME_DIR_READ;
9c915a8c
AR		 1281 dcmd->timeout = 0;
1282 dcmd->pad_0 = 0;
94cd65dd
SS		 1283 dcmd->data_xfer_len = cpu_to_le32(size_map_info);
1284 dcmd->opcode = cpu_to_le32(MR_DCMD_LD_MAP_GET_INFO);
9c915a8c 1285
107a60dd 1286 megasas_set_dma_settings(instance, dcmd, ci_h, size_map_info);
9c915a8c 1287
55fecaec 1288 if (!instance->mask_interrupts)
90dc9d98 1289 ret = megasas_issue_blocked_cmd(instance, cmd,
6d40afbc 1290 MFI_IO_TIMEOUT_SECS);
90dc9d98
SS		 1291 else
1292 ret = megasas_issue_polled(instance, cmd);
9c915a8c 1293
55fecaec 1294 if (ret == DCMD_TIMEOUT)
6d40afbc
SS		 1295 megaraid_sas_kill_hba(instance);
1296
4026e9aa 1297 megasas_return_cmd(instance, cmd);
9c915a8c
AR		 1298
1299 return ret;
1300}
1301
1302u8
1303megasas_get_map_info(struct megasas_instance *instance)
1304{
1305 struct fusion_context *fusion = instance->ctrl_context;
1306
1307 fusion->fast_path_io = 0;
1308 if (!megasas_get_ld_map_info(instance)) {
bc93d425 1309 if (MR_ValidateMapInfo(instance)) {
9c915a8c
AR		 1310 fusion->fast_path_io = 1;
1311 return 0;
1312 }
1313 }
1314 return 1;
1315}
1316
1317/*
1318 * megasas_sync_map_info - Returns FW's ld_map structure
1319 * @instance: Adapter soft state
1320 *
1321 * Issues an internal command (DCMD) to get the FW's controller PD
1322 * list structure. This information is mainly used to find out SYSTEM
1323 * supported by the FW.
1324 */
1325int
1326megasas_sync_map_info(struct megasas_instance *instance)
1327{
f4fc2093 1328 int i;
9c915a8c
AR		 1329 struct megasas_cmd *cmd;
1330 struct megasas_dcmd_frame *dcmd;
d2d0358b
S		 1331 u16 num_lds;
1332 u32 size_sync_info;
9c915a8c
AR		 1333 struct fusion_context *fusion;
1334 struct MR_LD_TARGET_SYNC *ci = NULL;
51087a86 1335 struct MR_DRV_RAID_MAP_ALL *map;
9c915a8c
AR		 1336 struct MR_LD_RAID *raid;
1337 struct MR_LD_TARGET_SYNC *ld_sync;
1338 dma_addr_t ci_h = 0;
1339 u32 size_map_info;
1340
1341 cmd = megasas_get_cmd(instance);
1342
1343 if (!cmd) {
1be18254 1344 dev_printk(KERN_DEBUG, &instance->pdev->dev, "Failed to get cmd for sync info\n");
9c915a8c
AR		 1345 return -ENOMEM;
1346 }
1347
1348 fusion = instance->ctrl_context;
1349
1350 if (!fusion) {
1351 megasas_return_cmd(instance, cmd);
1352 return 1;
1353 }
1354
51087a86 1355 map = fusion->ld_drv_map[instance->map_id & 1];
9c915a8c 1356
6e755ddc 1357 num_lds = le16_to_cpu(map->raidMap.ldCount);
9c915a8c
AR		 1358
1359 dcmd = &cmd->frame->dcmd;
1360
1361 size_sync_info = sizeof(struct MR_LD_TARGET_SYNC) *num_lds;
1362
1363 memset(dcmd->mbox.b, 0, MFI_MBOX_SIZE);
1364
1365 ci = (struct MR_LD_TARGET_SYNC *)
1366 fusion->ld_map[(instance->map_id - 1) & 1];
51087a86 1367 memset(ci, 0, fusion->max_map_sz);
9c915a8c
AR		 1368
1369 ci_h = fusion->ld_map_phys[(instance->map_id - 1) & 1];
1370
1371 ld_sync = (struct MR_LD_TARGET_SYNC *)ci;
1372
1373 for (i = 0; i < num_lds; i++, ld_sync++) {
1374 raid = MR_LdRaidGet(i, map);
1375 ld_sync->targetId = MR_GetLDTgtId(i, map);
1376 ld_sync->seqNum = raid->seqNum;
1377 }
1378
51087a86 1379 size_map_info = fusion->current_map_sz;
9c915a8c
AR		 1380
1381 dcmd->cmd = MFI_CMD_DCMD;
1382 dcmd->cmd_status = 0xFF;
1383 dcmd->sge_count = 1;
107a60dd 1384 dcmd->flags = MFI_FRAME_DIR_WRITE;
9c915a8c
AR		 1385 dcmd->timeout = 0;
1386 dcmd->pad_0 = 0;
94cd65dd 1387 dcmd->data_xfer_len = cpu_to_le32(size_map_info);
9c915a8c
AR		 1388 dcmd->mbox.b[0] = num_lds;
1389 dcmd->mbox.b[1] = MEGASAS_DCMD_MBOX_PEND_FLAG;
94cd65dd 1390 dcmd->opcode = cpu_to_le32(MR_DCMD_LD_MAP_GET_INFO);
107a60dd
S		 1391
1392 megasas_set_dma_settings(instance, dcmd, ci_h, size_map_info);
9c915a8c
AR		 1393
1394 instance->map_update_cmd = cmd;
1395
1396 instance->instancet->issue_dcmd(instance, cmd);
1397
f4fc2093 1398 return 0;
9c915a8c
AR		 1399}
1400
39b72c3c
SS		 1401/*
1402 * meagasas_display_intel_branding - Display branding string
1403 * @instance: per adapter object
1404 *
1405 * Return nothing.
1406 */
1407static void
1408megasas_display_intel_branding(struct megasas_instance *instance)
1409{
1410 if (instance->pdev->subsystem_vendor != PCI_VENDOR_ID_INTEL)
1411 return;
1412
1413 switch (instance->pdev->device) {
1414 case PCI_DEVICE_ID_LSI_INVADER:
1415 switch (instance->pdev->subsystem_device) {
1416 case MEGARAID_INTEL_RS3DC080_SSDID:
1417 dev_info(&instance->pdev->dev, "scsi host %d: %s\n",
1418 instance->host->host_no,
1419 MEGARAID_INTEL_RS3DC080_BRANDING);
1420 break;
1421 case MEGARAID_INTEL_RS3DC040_SSDID:
1422 dev_info(&instance->pdev->dev, "scsi host %d: %s\n",
1423 instance->host->host_no,
1424 MEGARAID_INTEL_RS3DC040_BRANDING);
1425 break;
1426 case MEGARAID_INTEL_RS3SC008_SSDID:
1427 dev_info(&instance->pdev->dev, "scsi host %d: %s\n",
1428 instance->host->host_no,
1429 MEGARAID_INTEL_RS3SC008_BRANDING);
1430 break;
1431 case MEGARAID_INTEL_RS3MC044_SSDID:
1432 dev_info(&instance->pdev->dev, "scsi host %d: %s\n",
1433 instance->host->host_no,
1434 MEGARAID_INTEL_RS3MC044_BRANDING);
1435 break;
1436 default:
1437 break;
1438 }
1439 break;
1440 case PCI_DEVICE_ID_LSI_FURY:
1441 switch (instance->pdev->subsystem_device) {
1442 case MEGARAID_INTEL_RS3WC080_SSDID:
1443 dev_info(&instance->pdev->dev, "scsi host %d: %s\n",
1444 instance->host->host_no,
1445 MEGARAID_INTEL_RS3WC080_BRANDING);
1446 break;
1447 case MEGARAID_INTEL_RS3WC040_SSDID:
1448 dev_info(&instance->pdev->dev, "scsi host %d: %s\n",
1449 instance->host->host_no,
1450 MEGARAID_INTEL_RS3WC040_BRANDING);
1451 break;
1452 default:
1453 break;
1454 }
1455 break;
7364d34b 1456 case PCI_DEVICE_ID_LSI_CUTLASS_52:
1457 case PCI_DEVICE_ID_LSI_CUTLASS_53:
1458 switch (instance->pdev->subsystem_device) {
1459 case MEGARAID_INTEL_RMS3BC160_SSDID:
1460 dev_info(&instance->pdev->dev, "scsi host %d: %s\n",
1461 instance->host->host_no,
1462 MEGARAID_INTEL_RMS3BC160_BRANDING);
1463 break;
1464 default:
1465 break;
1466 }
1467 break;
39b72c3c
SS		 1468 default:
1469 break;
1470 }
1471}
1472
def3e8df
S		 1473/**
1474 * megasas_allocate_raid_maps - Allocate memory for RAID maps
1475 * @instance: Adapter soft state
1476 *
1477 * return: if success: return 0
1478 * failed: return -ENOMEM
1479 */
1480static inline int megasas_allocate_raid_maps(struct megasas_instance *instance)
1481{
1482 struct fusion_context *fusion;
1483 int i = 0;
1484
1485 fusion = instance->ctrl_context;
1486
1487 fusion->drv_map_pages = get_order(fusion->drv_map_sz);
1488
1489 for (i = 0; i < 2; i++) {
1490 fusion->ld_map[i] = NULL;
1491
1492 fusion->ld_drv_map[i] = (void *)
1493 __get_free_pages(__GFP_ZERO | GFP_KERNEL,
1494 fusion->drv_map_pages);
1495
1496 if (!fusion->ld_drv_map[i]) {
1497 fusion->ld_drv_map[i] = vzalloc(fusion->drv_map_sz);
1498
1499 if (!fusion->ld_drv_map[i]) {
1500 dev_err(&instance->pdev->dev,
1501 "Could not allocate memory for local map"
1502 " size requested: %d\n",
1503 fusion->drv_map_sz);
1504 goto ld_drv_map_alloc_fail;
1505 }
1506 }
1507 }
1508
1509 for (i = 0; i < 2; i++) {
1510 fusion->ld_map[i] = dma_alloc_coherent(&instance->pdev->dev,
1511 fusion->max_map_sz,
1512 &fusion->ld_map_phys[i],
1513 GFP_KERNEL);
1514 if (!fusion->ld_map[i]) {
1515 dev_err(&instance->pdev->dev,
1516 "Could not allocate memory for map info %s:%d\n",
1517 __func__, __LINE__);
1518 goto ld_map_alloc_fail;
1519 }
1520 }
1521
1522 return 0;
1523
1524ld_map_alloc_fail:
1525 for (i = 0; i < 2; i++) {
1526 if (fusion->ld_map[i])
1527 dma_free_coherent(&instance->pdev->dev,
1528 fusion->max_map_sz,
1529 fusion->ld_map[i],
1530 fusion->ld_map_phys[i]);
1531 }
1532
1533ld_drv_map_alloc_fail:
1534 for (i = 0; i < 2; i++) {
1535 if (fusion->ld_drv_map[i]) {
1536 if (is_vmalloc_addr(fusion->ld_drv_map[i]))
1537 vfree(fusion->ld_drv_map[i]);
1538 else
1539 free_pages((ulong)fusion->ld_drv_map[i],
1540 fusion->drv_map_pages);
1541 }
1542 }
1543
1544 return -ENOMEM;
1545}
1546
e97e673c
S		 1547/**
1548 * megasas_configure_queue_sizes - Calculate size of request desc queue,
1549 * reply desc queue,
1550 * IO request frame queue, set can_queue.
1551 * @instance: Adapter soft state
1552 * @return: void
1553 */
1554static inline
1555void megasas_configure_queue_sizes(struct megasas_instance *instance)
1556{
1557 struct fusion_context *fusion;
1558 u16 max_cmd;
1559
1560 fusion = instance->ctrl_context;
1561 max_cmd = instance->max_fw_cmds;
1562
1563 if (instance->adapter_type == VENTURA_SERIES)
1564 instance->max_mpt_cmds = instance->max_fw_cmds * RAID_1_PEER_CMDS;
1565 else
1566 instance->max_mpt_cmds = instance->max_fw_cmds;
1567
1568 instance->max_scsi_cmds = instance->max_fw_cmds -
1569 (MEGASAS_FUSION_INTERNAL_CMDS +
1570 MEGASAS_FUSION_IOCTL_CMDS);
1571 instance->cur_can_queue = instance->max_scsi_cmds;
1572 instance->host->can_queue = instance->cur_can_queue;
1573
1574 fusion->reply_q_depth = 2 * ((max_cmd + 1 + 15) / 16) * 16;
1575
1576 fusion->request_alloc_sz = sizeof(union MEGASAS_REQUEST_DESCRIPTOR_UNION) *
1577 instance->max_mpt_cmds;
1578 fusion->reply_alloc_sz = sizeof(union MPI2_REPLY_DESCRIPTORS_UNION) *
1579 (fusion->reply_q_depth);
1580 fusion->io_frames_alloc_sz = MEGA_MPI2_RAID_DEFAULT_IO_FRAME_SIZE +
1581 (MEGA_MPI2_RAID_DEFAULT_IO_FRAME_SIZE
1582 * (instance->max_mpt_cmds + 1)); /* Extra 1 for SMID 0 */
1583}
1584
b9637d14
S		 1585static int megasas_alloc_ioc_init_frame(struct megasas_instance *instance)
1586{
1587 struct fusion_context *fusion;
1588 struct megasas_cmd *cmd;
1589
1590 fusion = instance->ctrl_context;
1591
1592 cmd = kmalloc(sizeof(struct megasas_cmd), GFP_KERNEL);
1593
1594 if (!cmd) {
1595 dev_err(&instance->pdev->dev, "Failed from func: %s line: %d\n",
1596 __func__, __LINE__);
1597 return -ENOMEM;
1598 }
1599
1600 cmd->frame = dma_alloc_coherent(&instance->pdev->dev,
1601 IOC_INIT_FRAME_SIZE,
1602 &cmd->frame_phys_addr, GFP_KERNEL);
1603
1604 if (!cmd->frame) {
1605 dev_err(&instance->pdev->dev, "Failed from func: %s line: %d\n",
1606 __func__, __LINE__);
1607 kfree(cmd);
1608 return -ENOMEM;
1609 }
1610
1611 fusion->ioc_init_cmd = cmd;
1612 return 0;
1613}
1614
1615/**
1616 * megasas_free_ioc_init_cmd - Free IOC INIT command frame
1617 * @instance: Adapter soft state
1618 */
1619static inline void megasas_free_ioc_init_cmd(struct megasas_instance *instance)
1620{
1621 struct fusion_context *fusion;
1622
1623 fusion = instance->ctrl_context;
1624
1625 if (fusion->ioc_init_cmd && fusion->ioc_init_cmd->frame)
1626 dma_free_coherent(&instance->pdev->dev,
1627 IOC_INIT_FRAME_SIZE,
1628 fusion->ioc_init_cmd->frame,
1629 fusion->ioc_init_cmd->frame_phys_addr);
1630
1631 if (fusion->ioc_init_cmd)
1632 kfree(fusion->ioc_init_cmd);
1633}
1634
9c915a8c
AR		 1635/**
1636 * megasas_init_adapter_fusion - Initializes the FW
1637 * @instance: Adapter soft state
1638 *
1639 * This is the main function for initializing firmware.
1640 */
1641u32
1642megasas_init_adapter_fusion(struct megasas_instance *instance)
1643{
1644 struct megasas_register_set __iomem *reg_set;
1645 struct fusion_context *fusion;
50b7f5a2 1646 u32 scratch_pad_2;
c8e858fe 1647 int i = 0, count;
9c915a8c
AR		 1648
1649 fusion = instance->ctrl_context;
1650
1651 reg_set = instance->reg_set;
1652
308ec459 1653 megasas_fusion_update_can_queue(instance, PROBE_CONTEXT);
9c915a8c 1654
ae09a6c1
SS		 1655 /*
1656 * Only Driver's internal DCMDs and IOCTL DCMDs needs to have MFI frames
1657 */
1658 instance->max_mfi_cmds =
1659 MEGASAS_FUSION_INTERNAL_CMDS + MEGASAS_FUSION_IOCTL_CMDS;
9c915a8c 1660
e97e673c 1661 megasas_configure_queue_sizes(instance);
9c915a8c 1662
bd5f9484 1663 scratch_pad_2 = readl(&instance->reg_set->outbound_scratch_pad_2);
1664 /* If scratch_pad_2 & MEGASAS_MAX_CHAIN_SIZE_UNITS_MASK is set,
1665 * Firmware support extended IO chain frame which is 4 times more than
1666 * legacy Firmware.
1667 * Legacy Firmware - Frame size is (8 * 128) = 1K
1668 * 1M IO Firmware - Frame size is (8 * 128 * 4) = 4K
1669 */
1670 if (scratch_pad_2 & MEGASAS_MAX_CHAIN_SIZE_UNITS_MASK)
1671 instance->max_chain_frame_sz =
1672 ((scratch_pad_2 & MEGASAS_MAX_CHAIN_SIZE_MASK) >>
1673 MEGASAS_MAX_CHAIN_SHIFT) * MEGASAS_1MB_IO;
1674 else
1675 instance->max_chain_frame_sz =
1676 ((scratch_pad_2 & MEGASAS_MAX_CHAIN_SIZE_MASK) >>
1677 MEGASAS_MAX_CHAIN_SHIFT) * MEGASAS_256K_IO;
1678
1679 if (instance->max_chain_frame_sz < MEGASAS_CHAIN_FRAME_SZ_MIN) {
1680 dev_warn(&instance->pdev->dev, "frame size %d invalid, fall back to legacy max frame size %d\n",
1681 instance->max_chain_frame_sz,
1682 MEGASAS_CHAIN_FRAME_SZ_MIN);
1683 instance->max_chain_frame_sz = MEGASAS_CHAIN_FRAME_SZ_MIN;
1684 }
1685
9c915a8c 1686 fusion->max_sge_in_main_msg =
bd5f9484 1687 (MEGA_MPI2_RAID_DEFAULT_IO_FRAME_SIZE
1688 - offsetof(struct MPI2_RAID_SCSI_IO_REQUEST, SGL))/16;
9c915a8c
AR		 1689
1690 fusion->max_sge_in_chain =
bd5f9484 1691 instance->max_chain_frame_sz
1692 / sizeof(union MPI2_SGE_IO_UNION);
9c915a8c 1693
bd5f9484 1694 instance->max_num_sge =
1695 rounddown_pow_of_two(fusion->max_sge_in_main_msg
1696 + fusion->max_sge_in_chain - 2);
9c915a8c
AR		 1697
1698 /* Used for pass thru MFI frame (DCMD) */
1699 fusion->chain_offset_mfi_pthru =
1700 offsetof(struct MPI2_RAID_SCSI_IO_REQUEST, SGL)/16;
1701
1702 fusion->chain_offset_io_request =
1703 (MEGA_MPI2_RAID_DEFAULT_IO_FRAME_SIZE -
1704 sizeof(union MPI2_SGE_IO_UNION))/16;
1705
c8e858fe
AR		 1706 count = instance->msix_vectors > 0 ? instance->msix_vectors : 1;
1707 for (i = 0 ; i < count; i++)
1708 fusion->last_reply_idx[i] = 0;
9c915a8c 1709
f26ac3a1 1710 /*
ec779595 1711 * For fusion adapters, 3 commands for IOCTL and 8 commands
f26ac3a1
SS		 1712 * for driver's internal DCMDs.
1713 */
1714 instance->max_scsi_cmds = instance->max_fw_cmds -
1715 (MEGASAS_FUSION_INTERNAL_CMDS +
1716 MEGASAS_FUSION_IOCTL_CMDS);
1717 sema_init(&instance->ioctl_sem, MEGASAS_FUSION_IOCTL_CMDS);
1718
b9637d14
S		 1719 if (megasas_alloc_ioc_init_frame(instance))
1720 return 1;
1721
9c915a8c
AR		 1722 /*
1723 * Allocate memory for descriptors
1724 * Create a pool of commands
1725 */
1726 if (megasas_alloc_cmds(instance))
1727 goto fail_alloc_mfi_cmds;
1728 if (megasas_alloc_cmds_fusion(instance))
1729 goto fail_alloc_cmds;
1730
1731 if (megasas_ioc_init_fusion(instance))
1732 goto fail_ioc_init;
1733
39b72c3c 1734 megasas_display_intel_branding(instance);
d009b576 1735 if (megasas_get_ctrl_info(instance)) {
51087a86
SS		 1736 dev_err(&instance->pdev->dev,
1737 "Could not get controller info. Fail from %s %d\n",
1738 __func__, __LINE__);
1739 goto fail_ioc_init;
1740 }
1741
9c915a8c 1742 instance->flag_ieee = 1;
a48ba0ec 1743 instance->r1_ldio_hint_default = MR_R1_LDIO_PIGGYBACK_DEFAULT;
51087a86 1744 fusion->fast_path_io = 0;
9c915a8c 1745
def3e8df
S		 1746 if (megasas_allocate_raid_maps(instance))
1747 goto fail_ioc_init;
9c915a8c
AR		 1748
1749 if (!megasas_get_map_info(instance))
1750 megasas_sync_map_info(instance);
1751
1752 return 0;
1753
9c915a8c 1754fail_ioc_init:
eb1b1237
AR		 1755 megasas_free_cmds_fusion(instance);
1756fail_alloc_cmds:
1757 megasas_free_cmds(instance);
1758fail_alloc_mfi_cmds:
b9637d14 1759 megasas_free_ioc_init_cmd(instance);
9c915a8c
AR		 1760 return 1;
1761}
1762
9c915a8c
AR		 1763/**
1764 * map_cmd_status - Maps FW cmd status to OS cmd status
1765 * @cmd : Pointer to cmd
1766 * @status : status of cmd returned by FW
1767 * @ext_status : ext status of cmd returned by FW
1768 */
1769
1770void
69c337c0 1771map_cmd_status(struct fusion_context *fusion,
41064f1b
S		 1772 struct scsi_cmnd *scmd, u8 status, u8 ext_status,
1773 u32 data_length, u8 *sense)
9c915a8c 1774{
def0eab3 1775 u8 cmd_type;
31d9a57b 1776 int resid;
9c915a8c 1777
def0eab3 1778 cmd_type = megasas_cmd_type(scmd);
9c915a8c
AR		 1779 switch (status) {
1780
1781 case MFI_STAT_OK:
69c337c0 1782 scmd->result = DID_OK << 16;
9c915a8c
AR		 1783 break;
1784
1785 case MFI_STAT_SCSI_IO_FAILED:
1786 case MFI_STAT_LD_INIT_IN_PROGRESS:
69c337c0 1787 scmd->result = (DID_ERROR << 16) | ext_status;
9c915a8c
AR		 1788 break;
1789
1790 case MFI_STAT_SCSI_DONE_WITH_ERROR:
1791
69c337c0 1792 scmd->result = (DID_OK << 16) | ext_status;
9c915a8c 1793 if (ext_status == SAM_STAT_CHECK_CONDITION) {
69c337c0 1794 memset(scmd->sense_buffer, 0,
9c915a8c 1795 SCSI_SENSE_BUFFERSIZE);
69c337c0 1796 memcpy(scmd->sense_buffer, sense,
9c915a8c 1797 SCSI_SENSE_BUFFERSIZE);
69c337c0 1798 scmd->result |= DRIVER_SENSE << 24;
9c915a8c 1799 }
31d9a57b
S		 1800
1801 /*
1802 * If the IO request is partially completed, then MR FW will
1803 * update "io_request->DataLength" field with actual number of
1804 * bytes transferred.Driver will set residual bytes count in
1805 * SCSI command structure.
1806 */
1807 resid = (scsi_bufflen(scmd) - data_length);
1808 scsi_set_resid(scmd, resid);
def0eab3
S		 1809
1810 if (resid &&
1811 ((cmd_type == READ_WRITE_LDIO) ||
1812 (cmd_type == READ_WRITE_SYSPDIO)))
1813 scmd_printk(KERN_INFO, scmd, "BRCM Debug mfi stat 0x%x, data len"
1814 " requested/completed 0x%x/0x%x\n",
1815 status, scsi_bufflen(scmd), data_length);
9c915a8c
AR		 1816 break;
1817
1818 case MFI_STAT_LD_OFFLINE:
1819 case MFI_STAT_DEVICE_NOT_FOUND:
69c337c0 1820 scmd->result = DID_BAD_TARGET << 16;
9c915a8c 1821 break;
36807e67 1822 case MFI_STAT_CONFIG_SEQ_MISMATCH:
69c337c0 1823 scmd->result = DID_IMM_RETRY << 16;
36807e67 1824 break;
9c915a8c 1825 default:
69c337c0 1826 scmd->result = DID_ERROR << 16;
9c915a8c
AR		 1827 break;
1828 }
1829}
1830
33203bc4
S		 1831/**
1832 * megasas_is_prp_possible -
1833 * Checks if native NVMe PRPs can be built for the IO
1834 *
1835 * @instance: Adapter soft state
1836 * @scmd: SCSI command from the mid-layer
1837 * @sge_count: scatter gather element count.
1838 *
1839 * Returns: true: PRPs can be built
1840 * false: IEEE SGLs needs to be built
1841 */
1842static bool
1843megasas_is_prp_possible(struct megasas_instance *instance,
1844 struct scsi_cmnd *scmd, int sge_count)
1845{
1846 struct fusion_context *fusion;
1847 int i;
1848 u32 data_length = 0;
1849 struct scatterlist *sg_scmd;
1850 bool build_prp = false;
1851 u32 mr_nvme_pg_size;
1852
1853 mr_nvme_pg_size = max_t(u32, instance->nvme_page_size,
1854 MR_DEFAULT_NVME_PAGE_SIZE);
1855 fusion = instance->ctrl_context;
1856 data_length = scsi_bufflen(scmd);
1857 sg_scmd = scsi_sglist(scmd);
1858
1859 /*
1860 * NVMe uses one PRP for each page (or part of a page)
1861 * look at the data length - if 4 pages or less then IEEE is OK
1862 * if > 5 pages then we need to build a native SGL
1863 * if > 4 and <= 5 pages, then check physical address of 1st SG entry
1864 * if this first size in the page is >= the residual beyond 4 pages
1865 * then use IEEE, otherwise use native SGL
1866 */
1867
1868 if (data_length > (mr_nvme_pg_size * 5)) {
1869 build_prp = true;
1870 } else if ((data_length > (mr_nvme_pg_size * 4)) &&
1871 (data_length <= (mr_nvme_pg_size * 5))) {
1872 /* check if 1st SG entry size is < residual beyond 4 pages */
1873 if (sg_dma_len(sg_scmd) < (data_length - (mr_nvme_pg_size * 4)))
1874 build_prp = true;
1875 }
1876
1877/*
1878 * Below code detects gaps/holes in IO data buffers.
1879 * What does holes/gaps mean?
1880 * Any SGE except first one in a SGL starts at non NVME page size
1881 * aligned address OR Any SGE except last one in a SGL ends at
1882 * non NVME page size boundary.
1883 *
1884 * Driver has already informed block layer by setting boundary rules for
1885 * bio merging done at NVME page size boundary calling kernel API
1886 * blk_queue_virt_boundary inside slave_config.
1887 * Still there is possibility of IO coming with holes to driver because of
1888 * IO merging done by IO scheduler.
1889 *
1890 * With SCSI BLK MQ enabled, there will be no IO with holes as there is no
1891 * IO scheduling so no IO merging.
1892 *
1893 * With SCSI BLK MQ disabled, IO scheduler may attempt to merge IOs and
1894 * then sending IOs with holes.
1895 *
1896 * Though driver can request block layer to disable IO merging by calling-
1897 * queue_flag_set_unlocked(QUEUE_FLAG_NOMERGES, sdev->request_queue) but
1898 * user may tune sysfs parameter- nomerges again to 0 or 1.
1899 *
1900 * If in future IO scheduling is enabled with SCSI BLK MQ,
1901 * this algorithm to detect holes will be required in driver
1902 * for SCSI BLK MQ enabled case as well.
1903 *
1904 *
1905 */
1906 scsi_for_each_sg(scmd, sg_scmd, sge_count, i) {
1907 if ((i != 0) && (i != (sge_count - 1))) {
1908 if (mega_mod64(sg_dma_len(sg_scmd), mr_nvme_pg_size) ||
1909 mega_mod64(sg_dma_address(sg_scmd),
1910 mr_nvme_pg_size)) {
1911 build_prp = false;
1912 atomic_inc(&instance->sge_holes_type1);
1913 break;
1914 }
1915 }
1916
1917 if ((sge_count > 1) && (i == 0)) {
1918 if ((mega_mod64((sg_dma_address(sg_scmd) +
1919 sg_dma_len(sg_scmd)),
1920 mr_nvme_pg_size))) {
1921 build_prp = false;
1922 atomic_inc(&instance->sge_holes_type2);
1923 break;
1924 }
1925 }
1926
1927 if ((sge_count > 1) && (i == (sge_count - 1))) {
1928 if (mega_mod64(sg_dma_address(sg_scmd),
1929 mr_nvme_pg_size)) {
1930 build_prp = false;
1931 atomic_inc(&instance->sge_holes_type3);
1932 break;
1933 }
1934 }
1935 }
1936
1937 return build_prp;
1938}
1939
1940/**
1941 * megasas_make_prp_nvme -
1942 * Prepare PRPs(Physical Region Page)- SGLs specific to NVMe drives only
1943 *
1944 * @instance: Adapter soft state
1945 * @scmd: SCSI command from the mid-layer
1946 * @sgl_ptr: SGL to be filled in
1947 * @cmd: Fusion command frame
1948 * @sge_count: scatter gather element count.
1949 *
1950 * Returns: true: PRPs are built
1951 * false: IEEE SGLs needs to be built
1952 */
1953static bool
1954megasas_make_prp_nvme(struct megasas_instance *instance, struct scsi_cmnd *scmd,
1955 struct MPI25_IEEE_SGE_CHAIN64 *sgl_ptr,
1956 struct megasas_cmd_fusion *cmd, int sge_count)
1957{
1958 int sge_len, offset, num_prp_in_chain = 0;
1959 struct MPI25_IEEE_SGE_CHAIN64 *main_chain_element, *ptr_first_sgl;
d1da522f
AB		 1960 u64 *ptr_sgl;
1961 dma_addr_t ptr_sgl_phys;
33203bc4
S		 1962 u64 sge_addr;
1963 u32 page_mask, page_mask_result;
1964 struct scatterlist *sg_scmd;
1965 u32 first_prp_len;
1966 bool build_prp = false;
1967 int data_len = scsi_bufflen(scmd);
1968 struct fusion_context *fusion;
1969 u32 mr_nvme_pg_size = max_t(u32, instance->nvme_page_size,
1970 MR_DEFAULT_NVME_PAGE_SIZE);
1971
1972 fusion = instance->ctrl_context;
1973
1974 build_prp = megasas_is_prp_possible(instance, scmd, sge_count);
1975
1976 if (!build_prp)
1977 return false;
1978
1979 /*
1980 * Nvme has a very convoluted prp format. One prp is required
1981 * for each page or partial page. Driver need to split up OS sg_list
1982 * entries if it is longer than one page or cross a page
1983 * boundary. Driver also have to insert a PRP list pointer entry as
1984 * the last entry in each physical page of the PRP list.
1985 *
1986 * NOTE: The first PRP "entry" is actually placed in the first
1987 * SGL entry in the main message as IEEE 64 format. The 2nd
1988 * entry in the main message is the chain element, and the rest
1989 * of the PRP entries are built in the contiguous pcie buffer.
1990 */
1991 page_mask = mr_nvme_pg_size - 1;
1992 ptr_sgl = (u64 *)cmd->sg_frame;
d1da522f 1993 ptr_sgl_phys = cmd->sg_frame_phys_addr;
33203bc4
S		 1994 memset(ptr_sgl, 0, instance->max_chain_frame_sz);
1995
1996 /* Build chain frame element which holds all prps except first*/
1997 main_chain_element = (struct MPI25_IEEE_SGE_CHAIN64 *)
1998 ((u8 *)sgl_ptr + sizeof(struct MPI25_IEEE_SGE_CHAIN64));
1999
d1da522f 2000 main_chain_element->Address = cpu_to_le64(ptr_sgl_phys);
33203bc4
S		 2001 main_chain_element->NextChainOffset = 0;
2002 main_chain_element->Flags = IEEE_SGE_FLAGS_CHAIN_ELEMENT |
2003 IEEE_SGE_FLAGS_SYSTEM_ADDR |
2004 MPI26_IEEE_SGE_FLAGS_NSF_NVME_PRP;
2005
2006 /* Build first prp, sge need not to be page aligned*/
2007 ptr_first_sgl = sgl_ptr;
2008 sg_scmd = scsi_sglist(scmd);
2009 sge_addr = sg_dma_address(sg_scmd);
2010 sge_len = sg_dma_len(sg_scmd);
2011
2012 offset = (u32)(sge_addr & page_mask);
2013 first_prp_len = mr_nvme_pg_size - offset;
2014
2015 ptr_first_sgl->Address = cpu_to_le64(sge_addr);
2016 ptr_first_sgl->Length = cpu_to_le32(first_prp_len);
2017
2018 data_len -= first_prp_len;
2019
2020 if (sge_len > first_prp_len) {
2021 sge_addr += first_prp_len;
2022 sge_len -= first_prp_len;
2023 } else if (sge_len == first_prp_len) {
2024 sg_scmd = sg_next(sg_scmd);
2025 sge_addr = sg_dma_address(sg_scmd);
2026 sge_len = sg_dma_len(sg_scmd);
2027 }
2028
2029 for (;;) {
2030 offset = (u32)(sge_addr & page_mask);
2031
2032 /* Put PRP pointer due to page boundary*/
2033 page_mask_result = (uintptr_t)(ptr_sgl + 1) & page_mask;
2034 if (unlikely(!page_mask_result)) {
2035 scmd_printk(KERN_NOTICE,
2036 scmd, "page boundary ptr_sgl: 0x%p\n",
2037 ptr_sgl);
d1da522f
AB		 2038 ptr_sgl_phys += 8;
2039 *ptr_sgl = cpu_to_le64(ptr_sgl_phys);
33203bc4
S		 2040 ptr_sgl++;
2041 num_prp_in_chain++;
2042 }
2043
2044 *ptr_sgl = cpu_to_le64(sge_addr);
2045 ptr_sgl++;
d1da522f 2046 ptr_sgl_phys += 8;
33203bc4
S		 2047 num_prp_in_chain++;
2048
2049 sge_addr += mr_nvme_pg_size;
2050 sge_len -= mr_nvme_pg_size;
2051 data_len -= mr_nvme_pg_size;
2052
2053 if (data_len <= 0)
2054 break;
2055
2056 if (sge_len > 0)
2057 continue;
2058
2059 sg_scmd = sg_next(sg_scmd);
2060 sge_addr = sg_dma_address(sg_scmd);
2061 sge_len = sg_dma_len(sg_scmd);
2062 }
2063
2064 main_chain_element->Length =
2065 cpu_to_le32(num_prp_in_chain * sizeof(u64));
2066
2067 atomic_inc(&instance->prp_sgl);
2068 return build_prp;
2069}
2070
9c915a8c
AR		 2071/**
2072 * megasas_make_sgl_fusion - Prepares 32-bit SGL
2073 * @instance: Adapter soft state
2074 * @scp: SCSI command from the mid-layer
2075 * @sgl_ptr: SGL to be filled in
2076 * @cmd: cmd we are working on
33203bc4 2077 * @sge_count sge count
9c915a8c 2078 *
9c915a8c 2079 */
33203bc4 2080static void
9c915a8c
AR		 2081megasas_make_sgl_fusion(struct megasas_instance *instance,
2082 struct scsi_cmnd *scp,
2083 struct MPI25_IEEE_SGE_CHAIN64 *sgl_ptr,
33203bc4 2084 struct megasas_cmd_fusion *cmd, int sge_count)
9c915a8c 2085{
33203bc4 2086 int i, sg_processed;
9c915a8c
AR		 2087 struct scatterlist *os_sgl;
2088 struct fusion_context *fusion;
2089
2090 fusion = instance->ctrl_context;
2091
c365178f 2092 if (instance->adapter_type >= INVADER_SERIES) {
36807e67
AR		 2093 struct MPI25_IEEE_SGE_CHAIN64 *sgl_ptr_end = sgl_ptr;
2094 sgl_ptr_end += fusion->max_sge_in_main_msg - 1;
2095 sgl_ptr_end->Flags = 0;
2096 }
9c915a8c 2097
9c915a8c 2098 scsi_for_each_sg(scp, os_sgl, sge_count, i) {
94cd65dd
SS		 2099 sgl_ptr->Length = cpu_to_le32(sg_dma_len(os_sgl));
2100 sgl_ptr->Address = cpu_to_le64(sg_dma_address(os_sgl));
9c915a8c 2101 sgl_ptr->Flags = 0;
c365178f 2102 if (instance->adapter_type >= INVADER_SERIES)
36807e67
AR		 2103 if (i == sge_count - 1)
2104 sgl_ptr->Flags = IEEE_SGE_FLAGS_END_OF_LIST;
9c915a8c 2105 sgl_ptr++;
9c915a8c
AR		 2106 sg_processed = i + 1;
2107
2108 if ((sg_processed == (fusion->max_sge_in_main_msg - 1)) &&
2109 (sge_count > fusion->max_sge_in_main_msg)) {
2110
2111 struct MPI25_IEEE_SGE_CHAIN64 *sg_chain;
c365178f 2112 if (instance->adapter_type >= INVADER_SERIES) {
94cd65dd
SS		 2113 if ((le16_to_cpu(cmd->io_request->IoFlags) &
2114 MPI25_SAS_DEVICE0_FLAGS_ENABLED_FAST_PATH) !=
2115 MPI25_SAS_DEVICE0_FLAGS_ENABLED_FAST_PATH)
36807e67
AR		 2116 cmd->io_request->ChainOffset =
2117 fusion->
2118 chain_offset_io_request;
2119 else
2120 cmd->io_request->ChainOffset = 0;
2121 } else
2122 cmd->io_request->ChainOffset =
2123 fusion->chain_offset_io_request;
2124
9c915a8c
AR		 2125 sg_chain = sgl_ptr;
2126 /* Prepare chain element */
2127 sg_chain->NextChainOffset = 0;
c365178f 2128 if (instance->adapter_type >= INVADER_SERIES)
36807e67
AR		 2129 sg_chain->Flags = IEEE_SGE_FLAGS_CHAIN_ELEMENT;
2130 else
2131 sg_chain->Flags =
2132 (IEEE_SGE_FLAGS_CHAIN_ELEMENT |
2133 MPI2_IEEE_SGE_FLAGS_IOCPLBNTA_ADDR);
94cd65dd
SS		 2134 sg_chain->Length = cpu_to_le32((sizeof(union MPI2_SGE_IO_UNION) * (sge_count - sg_processed)));
2135 sg_chain->Address = cpu_to_le64(cmd->sg_frame_phys_addr);
9c915a8c
AR		 2136
2137 sgl_ptr =
2138 (struct MPI25_IEEE_SGE_CHAIN64 *)cmd->sg_frame;
bd5f9484 2139 memset(sgl_ptr, 0, instance->max_chain_frame_sz);
9c915a8c
AR		 2140 }
2141 }
33203bc4
S		 2142 atomic_inc(&instance->ieee_sgl);
2143}
2144
2145/**
2146 * megasas_make_sgl - Build Scatter Gather List(SGLs)
2147 * @scp: SCSI command pointer
2148 * @instance: Soft instance of controller
2149 * @cmd: Fusion command pointer
2150 *
2151 * This function will build sgls based on device type.
2152 * For nvme drives, there is different way of building sgls in nvme native
2153 * format- PRPs(Physical Region Page).
2154 *
2155 * Returns the number of sg lists actually used, zero if the sg lists
2156 * is NULL, or -ENOMEM if the mapping failed
2157 */
2158static
2159int megasas_make_sgl(struct megasas_instance *instance, struct scsi_cmnd *scp,
2160 struct megasas_cmd_fusion *cmd)
2161{
2162 int sge_count;
2163 bool build_prp = false;
2164 struct MPI25_IEEE_SGE_CHAIN64 *sgl_chain64;
2165
2166 sge_count = scsi_dma_map(scp);
2167
2168 if ((sge_count > instance->max_num_sge) || (sge_count <= 0))
2169 return sge_count;
2170
2171 sgl_chain64 = (struct MPI25_IEEE_SGE_CHAIN64 *)&cmd->io_request->SGL;
2172 if ((le16_to_cpu(cmd->io_request->IoFlags) &
2173 MPI25_SAS_DEVICE0_FLAGS_ENABLED_FAST_PATH) &&
2174 (cmd->pd_interface == NVME_PD))
2175 build_prp = megasas_make_prp_nvme(instance, scp, sgl_chain64,
2176 cmd, sge_count);
2177
2178 if (!build_prp)
2179 megasas_make_sgl_fusion(instance, scp, sgl_chain64,
2180 cmd, sge_count);
9c915a8c
AR		 2181
2182 return sge_count;
2183}
2184
2185/**
2186 * megasas_set_pd_lba - Sets PD LBA
2187 * @cdb: CDB
2188 * @cdb_len: cdb length
2189 * @start_blk: Start block of IO
2190 *
2191 * Used to set the PD LBA in CDB for FP IOs
2192 */
2193void
2194megasas_set_pd_lba(struct MPI2_RAID_SCSI_IO_REQUEST *io_request, u8 cdb_len,
2195 struct IO_REQUEST_INFO *io_info, struct scsi_cmnd *scp,
51087a86 2196 struct MR_DRV_RAID_MAP_ALL *local_map_ptr, u32 ref_tag)
9c915a8c
AR		 2197{
2198 struct MR_LD_RAID *raid;
d2d0358b 2199 u16 ld;
9c915a8c
AR		 2200 u64 start_blk = io_info->pdBlock;
2201 u8 *cdb = io_request->CDB.CDB32;
2202 u32 num_blocks = io_info->numBlocks;
495c5609 2203 u8 opcode = 0, flagvals = 0, groupnum = 0, control = 0;
9c915a8c
AR		 2204
2205 /* Check if T10 PI (DIF) is enabled for this LD */
2206 ld = MR_TargetIdToLdGet(io_info->ldTgtId, local_map_ptr);
2207 raid = MR_LdRaidGet(ld, local_map_ptr);
2208 if (raid->capability.ldPiMode == MR_PROT_INFO_TYPE_CONTROLLER) {
2209 memset(cdb, 0, sizeof(io_request->CDB.CDB32));
2210 cdb[0] = MEGASAS_SCSI_VARIABLE_LENGTH_CMD;
2211 cdb[7] = MEGASAS_SCSI_ADDL_CDB_LEN;
2212
2213 if (scp->sc_data_direction == PCI_DMA_FROMDEVICE)
2214 cdb[9] = MEGASAS_SCSI_SERVICE_ACTION_READ32;
2215 else
2216 cdb[9] = MEGASAS_SCSI_SERVICE_ACTION_WRITE32;
2217 cdb[10] = MEGASAS_RD_WR_PROTECT_CHECK_ALL;
2218
2219 /* LBA */
2220 cdb[12] = (u8)((start_blk >> 56) & 0xff);
2221 cdb[13] = (u8)((start_blk >> 48) & 0xff);
2222 cdb[14] = (u8)((start_blk >> 40) & 0xff);
2223 cdb[15] = (u8)((start_blk >> 32) & 0xff);
2224 cdb[16] = (u8)((start_blk >> 24) & 0xff);
2225 cdb[17] = (u8)((start_blk >> 16) & 0xff);
2226 cdb[18] = (u8)((start_blk >> 8) & 0xff);
2227 cdb[19] = (u8)(start_blk & 0xff);
2228
2229 /* Logical block reference tag */
2230 io_request->CDB.EEDP32.PrimaryReferenceTag =
2231 cpu_to_be32(ref_tag);
6e755ddc 2232 io_request->CDB.EEDP32.PrimaryApplicationTagMask = cpu_to_be16(0xffff);
94cd65dd 2233 io_request->IoFlags = cpu_to_le16(32); /* Specify 32-byte cdb */
9c915a8c
AR		 2234
2235 /* Transfer length */
2236 cdb[28] = (u8)((num_blocks >> 24) & 0xff);
2237 cdb[29] = (u8)((num_blocks >> 16) & 0xff);
2238 cdb[30] = (u8)((num_blocks >> 8) & 0xff);
2239 cdb[31] = (u8)(num_blocks & 0xff);
2240
2241 /* set SCSI IO EEDPFlags */
2242 if (scp->sc_data_direction == PCI_DMA_FROMDEVICE) {
94cd65dd 2243 io_request->EEDPFlags = cpu_to_le16(
9c915a8c
AR		 2244 MPI2_SCSIIO_EEDPFLAGS_INC_PRI_REFTAG |
2245 MPI2_SCSIIO_EEDPFLAGS_CHECK_REFTAG |
2246 MPI2_SCSIIO_EEDPFLAGS_CHECK_REMOVE_OP |
2247 MPI2_SCSIIO_EEDPFLAGS_CHECK_APPTAG |
45d44603 2248 MPI25_SCSIIO_EEDPFLAGS_DO_NOT_DISABLE_MODE |
94cd65dd 2249 MPI2_SCSIIO_EEDPFLAGS_CHECK_GUARD);
9c915a8c 2250 } else {
94cd65dd 2251 io_request->EEDPFlags = cpu_to_le16(
9c915a8c 2252 MPI2_SCSIIO_EEDPFLAGS_INC_PRI_REFTAG |
94cd65dd 2253 MPI2_SCSIIO_EEDPFLAGS_INSERT_OP);
9c915a8c 2254 }
94cd65dd
SS		 2255 io_request->Control |= cpu_to_le32((0x4 << 26));
2256 io_request->EEDPBlockSize = cpu_to_le32(scp->device->sector_size);
9c915a8c
AR		 2257 } else {
2258 /* Some drives don't support 16/12 byte CDB's, convert to 10 */
2259 if (((cdb_len == 12) || (cdb_len == 16)) &&
2260 (start_blk <= 0xffffffff)) {
2261 if (cdb_len == 16) {
2262 opcode = cdb[0] == READ_16 ? READ_10 : WRITE_10;
2263 flagvals = cdb[1];
2264 groupnum = cdb[14];
2265 control = cdb[15];
2266 } else {
2267 opcode = cdb[0] == READ_12 ? READ_10 : WRITE_10;
2268 flagvals = cdb[1];
2269 groupnum = cdb[10];
2270 control = cdb[11];
2271 }
2272
2273 memset(cdb, 0, sizeof(io_request->CDB.CDB32));
2274
2275 cdb[0] = opcode;
2276 cdb[1] = flagvals;
2277 cdb[6] = groupnum;
2278 cdb[9] = control;
2279
2280 /* Transfer length */
2281 cdb[8] = (u8)(num_blocks & 0xff);
2282 cdb[7] = (u8)((num_blocks >> 8) & 0xff);
2283
94cd65dd 2284 io_request->IoFlags = cpu_to_le16(10); /* Specify 10-byte cdb */
9c915a8c 2285 cdb_len = 10;
495c5609
AR		 2286 } else if ((cdb_len < 16) && (start_blk > 0xffffffff)) {
2287 /* Convert to 16 byte CDB for large LBA's */
2288 switch (cdb_len) {
2289 case 6:
2290 opcode = cdb[0] == READ_6 ? READ_16 : WRITE_16;
2291 control = cdb[5];
2292 break;
2293 case 10:
2294 opcode =
2295 cdb[0] == READ_10 ? READ_16 : WRITE_16;
2296 flagvals = cdb[1];
2297 groupnum = cdb[6];
2298 control = cdb[9];
2299 break;
2300 case 12:
2301 opcode =
2302 cdb[0] == READ_12 ? READ_16 : WRITE_16;
2303 flagvals = cdb[1];
2304 groupnum = cdb[10];
2305 control = cdb[11];
2306 break;
2307 }
2308
2309 memset(cdb, 0, sizeof(io_request->CDB.CDB32));
2310
2311 cdb[0] = opcode;
2312 cdb[1] = flagvals;
2313 cdb[14] = groupnum;
2314 cdb[15] = control;
2315
2316 /* Transfer length */
2317 cdb[13] = (u8)(num_blocks & 0xff);
2318 cdb[12] = (u8)((num_blocks >> 8) & 0xff);
2319 cdb[11] = (u8)((num_blocks >> 16) & 0xff);
2320 cdb[10] = (u8)((num_blocks >> 24) & 0xff);
2321
94cd65dd 2322 io_request->IoFlags = cpu_to_le16(16); /* Specify 16-byte cdb */
495c5609 2323 cdb_len = 16;
9c915a8c
AR		 2324 }
2325
2326 /* Normal case, just load LBA here */
2327 switch (cdb_len) {
2328 case 6:
2329 {
2330 u8 val = cdb[1] & 0xE0;
2331 cdb[3] = (u8)(start_blk & 0xff);
2332 cdb[2] = (u8)((start_blk >> 8) & 0xff);
2333 cdb[1] = val | ((u8)(start_blk >> 16) & 0x1f);
2334 break;
2335 }
2336 case 10:
2337 cdb[5] = (u8)(start_blk & 0xff);
2338 cdb[4] = (u8)((start_blk >> 8) & 0xff);
2339 cdb[3] = (u8)((start_blk >> 16) & 0xff);
2340 cdb[2] = (u8)((start_blk >> 24) & 0xff);
2341 break;
2342 case 12:
2343 cdb[5] = (u8)(start_blk & 0xff);
2344 cdb[4] = (u8)((start_blk >> 8) & 0xff);
2345 cdb[3] = (u8)((start_blk >> 16) & 0xff);
2346 cdb[2] = (u8)((start_blk >> 24) & 0xff);
2347 break;
2348 case 16:
2349 cdb[9] = (u8)(start_blk & 0xff);
2350 cdb[8] = (u8)((start_blk >> 8) & 0xff);
2351 cdb[7] = (u8)((start_blk >> 16) & 0xff);
2352 cdb[6] = (u8)((start_blk >> 24) & 0xff);
2353 cdb[5] = (u8)((start_blk >> 32) & 0xff);
2354 cdb[4] = (u8)((start_blk >> 40) & 0xff);
2355 cdb[3] = (u8)((start_blk >> 48) & 0xff);
2356 cdb[2] = (u8)((start_blk >> 56) & 0xff);
2357 break;
2358 }
2359 }
2360}
2361
fdd84e25
SC		 2362/**
2363 * megasas_stream_detect - stream detection on read and and write IOs
2364 * @instance: Adapter soft state
2365 * @cmd: Command to be prepared
2366 * @io_info: IO Request info
2367 *
2368 */
2369
2370/** stream detection on read and and write IOs */
2371static void megasas_stream_detect(struct megasas_instance *instance,
41064f1b
S		 2372 struct megasas_cmd_fusion *cmd,
2373 struct IO_REQUEST_INFO *io_info)
fdd84e25
SC		 2374{
2375 struct fusion_context *fusion = instance->ctrl_context;
2376 u32 device_id = io_info->ldTgtId;
2377 struct LD_STREAM_DETECT *current_ld_sd
2378 = fusion->stream_detect_by_ld[device_id];
2379 u32 *track_stream = &current_ld_sd->mru_bit_map, stream_num;
2380 u32 shifted_values, unshifted_values;
2381 u32 index_value_mask, shifted_values_mask;
2382 int i;
2383 bool is_read_ahead = false;
2384 struct STREAM_DETECT *current_sd;
2385 /* find possible stream */
2386 for (i = 0; i < MAX_STREAMS_TRACKED; ++i) {
41064f1b
S		 2387 stream_num = (*track_stream >>
2388 (i * BITS_PER_INDEX_STREAM)) &
fdd84e25
SC		 2389 STREAM_MASK;
2390 current_sd = &current_ld_sd->stream_track[stream_num];
41064f1b
S		 2391 /* if we found a stream, update the raid
2392 * context and also update the mruBitMap
2393 */
2394 /* boundary condition */
2395 if ((current_sd->next_seq_lba) &&
2396 (io_info->ldStartBlock >= current_sd->next_seq_lba) &&
2397 (io_info->ldStartBlock <= (current_sd->next_seq_lba + 32)) &&
2398 (current_sd->is_read == io_info->isRead)) {
2399
2400 if ((io_info->ldStartBlock != current_sd->next_seq_lba) &&
2401 ((!io_info->isRead) || (!is_read_ahead)))
2402 /*
2403 * Once the API availible we need to change this.
2404 * At this point we are not allowing any gap
2405 */
2406 continue;
2407
2408 SET_STREAM_DETECTED(cmd->io_request->RaidContext.raid_context_g35);
2409 current_sd->next_seq_lba =
2410 io_info->ldStartBlock + io_info->numBlocks;
fdd84e25 2411 /*
41064f1b 2412 * update the mruBitMap LRU
fdd84e25 2413 */
41064f1b
S		 2414 shifted_values_mask =
2415 (1 << i * BITS_PER_INDEX_STREAM) - 1;
2416 shifted_values = ((*track_stream & shifted_values_mask)
2417 << BITS_PER_INDEX_STREAM);
2418 index_value_mask =
2419 STREAM_MASK << i * BITS_PER_INDEX_STREAM;
2420 unshifted_values =
2421 *track_stream & ~(shifted_values_mask |
2422 index_value_mask);
2423 *track_stream =
2424 unshifted_values | shifted_values | stream_num;
2425 return;
fdd84e25 2426 }
fdd84e25
SC		 2427 }
2428 /*
2429 * if we did not find any stream, create a new one
2430 * from the least recently used
2431 */
41064f1b
S		 2432 stream_num = (*track_stream >>
2433 ((MAX_STREAMS_TRACKED - 1) * BITS_PER_INDEX_STREAM)) &
2434 STREAM_MASK;
fdd84e25
SC		 2435 current_sd = &current_ld_sd->stream_track[stream_num];
2436 current_sd->is_read = io_info->isRead;
2437 current_sd->next_seq_lba = io_info->ldStartBlock + io_info->numBlocks;
41064f1b 2438 *track_stream = (((*track_stream & ZERO_LAST_STREAM) << 4) | stream_num);
fdd84e25 2439 return;
fdd84e25
SC		 2440}
2441
f6c0d55c
S		 2442/**
2443 * megasas_set_raidflag_cpu_affinity - This function sets the cpu
2444 * affinity (cpu of the controller) and raid_flags in the raid context
2445 * based on IO type.
2446 *
2447 * @praid_context: IO RAID context
2448 * @raid: LD raid map
2449 * @fp_possible: Is fast path possible?
2450 * @is_read: Is read IO?
2451 *
2452 */
2453static void
2454megasas_set_raidflag_cpu_affinity(union RAID_CONTEXT_UNION *praid_context,
2455 struct MR_LD_RAID *raid, bool fp_possible,
a48ba0ec 2456 u8 is_read, u32 scsi_buff_len)
f6c0d55c
S		 2457{
2458 u8 cpu_sel = MR_RAID_CTX_CPUSEL_0;
2459 struct RAID_CONTEXT_G35 *rctx_g35;
2460
2461 rctx_g35 = &praid_context->raid_context_g35;
2462 if (fp_possible) {
2463 if (is_read) {
2464 if ((raid->cpuAffinity.pdRead.cpu0) &&
2465 (raid->cpuAffinity.pdRead.cpu1))
2466 cpu_sel = MR_RAID_CTX_CPUSEL_FCFS;
2467 else if (raid->cpuAffinity.pdRead.cpu1)
2468 cpu_sel = MR_RAID_CTX_CPUSEL_1;
2469 } else {
2470 if ((raid->cpuAffinity.pdWrite.cpu0) &&
2471 (raid->cpuAffinity.pdWrite.cpu1))
2472 cpu_sel = MR_RAID_CTX_CPUSEL_FCFS;
2473 else if (raid->cpuAffinity.pdWrite.cpu1)
2474 cpu_sel = MR_RAID_CTX_CPUSEL_1;
2475 /* Fast path cache by pass capable R0/R1 VD */
2476 if ((raid->level <= 1) &&
2477 (raid->capability.fp_cache_bypass_capable)) {
a174118b
S		 2478 rctx_g35->routing_flags |=
2479 (1 << MR_RAID_CTX_ROUTINGFLAGS_SLD_SHIFT);
f6c0d55c
S		 2480 rctx_g35->raid_flags =
2481 (MR_RAID_FLAGS_IO_SUB_TYPE_CACHE_BYPASS
2482 << MR_RAID_CTX_RAID_FLAGS_IO_SUB_TYPE_SHIFT);
2483 }
2484 }
2485 } else {
2486 if (is_read) {
2487 if ((raid->cpuAffinity.ldRead.cpu0) &&
2488 (raid->cpuAffinity.ldRead.cpu1))
2489 cpu_sel = MR_RAID_CTX_CPUSEL_FCFS;
2490 else if (raid->cpuAffinity.ldRead.cpu1)
2491 cpu_sel = MR_RAID_CTX_CPUSEL_1;
2492 } else {
2493 if ((raid->cpuAffinity.ldWrite.cpu0) &&
2494 (raid->cpuAffinity.ldWrite.cpu1))
2495 cpu_sel = MR_RAID_CTX_CPUSEL_FCFS;
2496 else if (raid->cpuAffinity.ldWrite.cpu1)
2497 cpu_sel = MR_RAID_CTX_CPUSEL_1;
2498
a174118b 2499 if (is_stream_detected(rctx_g35) &&
874d025d 2500 ((raid->level == 5) || (raid->level == 6)) &&
f6c0d55c
S		 2501 (raid->writeMode == MR_RL_WRITE_THROUGH_MODE) &&
2502 (cpu_sel == MR_RAID_CTX_CPUSEL_FCFS))
2503 cpu_sel = MR_RAID_CTX_CPUSEL_0;
2504 }
2505 }
2506
a174118b
S		 2507 rctx_g35->routing_flags |=
2508 (cpu_sel << MR_RAID_CTX_ROUTINGFLAGS_CPUSEL_SHIFT);
a48ba0ec
S		 2509
2510 /* Always give priority to MR_RAID_FLAGS_IO_SUB_TYPE_LDIO_BW_LIMIT
2511 * vs MR_RAID_FLAGS_IO_SUB_TYPE_CACHE_BYPASS.
2512 * IO Subtype is not bitmap.
2513 */
2514 if ((raid->level == 1) && (!is_read)) {
2515 if (scsi_buff_len > MR_LARGE_IO_MIN_SIZE)
2516 praid_context->raid_context_g35.raid_flags =
2517 (MR_RAID_FLAGS_IO_SUB_TYPE_LDIO_BW_LIMIT
2518 << MR_RAID_CTX_RAID_FLAGS_IO_SUB_TYPE_SHIFT);
2519 }
f6c0d55c
S		 2520}
2521
9c915a8c
AR		 2522/**
2523 * megasas_build_ldio_fusion - Prepares IOs to devices
2524 * @instance: Adapter soft state
2525 * @scp: SCSI command
2526 * @cmd: Command to be prepared
2527 *
2528 * Prepares the io_request and chain elements (sg_frame) for IO
2529 * The IO can be for PD (Fast Path) or LD
2530 */
2531void
2532megasas_build_ldio_fusion(struct megasas_instance *instance,
2533 struct scsi_cmnd *scp,
2534 struct megasas_cmd_fusion *cmd)
2535{
f6c0d55c
S		 2536 bool fp_possible;
2537 u16 ld;
2538 u32 start_lba_lo, start_lba_hi, device_id, datalength = 0;
2539 u32 scsi_buff_len;
9c915a8c
AR		 2540 struct MPI2_RAID_SCSI_IO_REQUEST *io_request;
2541 union MEGASAS_REQUEST_DESCRIPTOR_UNION *req_desc;
2542 struct IO_REQUEST_INFO io_info;
2543 struct fusion_context *fusion;
51087a86 2544 struct MR_DRV_RAID_MAP_ALL *local_map_ptr;
21c9e160 2545 u8 *raidLUN;
fdd84e25 2546 unsigned long spinlock_flags;
d889344e 2547 union RAID_CONTEXT_UNION *praid_context;
f6c0d55c
S		 2548 struct MR_LD_RAID *raid = NULL;
2549 struct MR_PRIV_DEVICE *mrdev_priv;
9c915a8c 2550
4a5c814d 2551 device_id = MEGASAS_DEV_INDEX(scp);
9c915a8c
AR		 2552
2553 fusion = instance->ctrl_context;
2554
2555 io_request = cmd->io_request;
d889344e 2556 io_request->RaidContext.raid_context.virtual_disk_tgt_id =
fdd84e25
SC		 2557 cpu_to_le16(device_id);
2558 io_request->RaidContext.raid_context.status = 0;
d889344e 2559 io_request->RaidContext.raid_context.ex_status = 0;
9c915a8c
AR		 2560
2561 req_desc = (union MEGASAS_REQUEST_DESCRIPTOR_UNION *)cmd->request_desc;
2562
2563 start_lba_lo = 0;
2564 start_lba_hi = 0;
f6c0d55c 2565 fp_possible = false;
9c915a8c
AR		 2566
2567 /*
2568 * 6-byte READ(0x08) or WRITE(0x0A) cdb
2569 */
2570 if (scp->cmd_len == 6) {
f9eff815 2571 datalength = (u32) scp->cmnd[4];
9c915a8c
AR		 2572 start_lba_lo = ((u32) scp->cmnd[1] << 16) |
2573 ((u32) scp->cmnd[2] << 8) | (u32) scp->cmnd[3];
2574
2575 start_lba_lo &= 0x1FFFFF;
2576 }
2577
2578 /*
2579 * 10-byte READ(0x28) or WRITE(0x2A) cdb
2580 */
2581 else if (scp->cmd_len == 10) {
f9eff815 2582 datalength = (u32) scp->cmnd[8] |
9c915a8c
AR		 2583 ((u32) scp->cmnd[7] << 8);
2584 start_lba_lo = ((u32) scp->cmnd[2] << 24) |
2585 ((u32) scp->cmnd[3] << 16) |
2586 ((u32) scp->cmnd[4] << 8) | (u32) scp->cmnd[5];
2587 }
2588
2589 /*
2590 * 12-byte READ(0xA8) or WRITE(0xAA) cdb
2591 */
2592 else if (scp->cmd_len == 12) {
f9eff815 2593 datalength = ((u32) scp->cmnd[6] << 24) |
9c915a8c
AR		 2594 ((u32) scp->cmnd[7] << 16) |
2595 ((u32) scp->cmnd[8] << 8) | (u32) scp->cmnd[9];
2596 start_lba_lo = ((u32) scp->cmnd[2] << 24) |
2597 ((u32) scp->cmnd[3] << 16) |
2598 ((u32) scp->cmnd[4] << 8) | (u32) scp->cmnd[5];
2599 }
2600
2601 /*
2602 * 16-byte READ(0x88) or WRITE(0x8A) cdb
2603 */
2604 else if (scp->cmd_len == 16) {
f9eff815 2605 datalength = ((u32) scp->cmnd[10] << 24) |
9c915a8c
AR		 2606 ((u32) scp->cmnd[11] << 16) |
2607 ((u32) scp->cmnd[12] << 8) | (u32) scp->cmnd[13];
2608 start_lba_lo = ((u32) scp->cmnd[6] << 24) |
2609 ((u32) scp->cmnd[7] << 16) |
2610 ((u32) scp->cmnd[8] << 8) | (u32) scp->cmnd[9];
2611
2612 start_lba_hi = ((u32) scp->cmnd[2] << 24) |
2613 ((u32) scp->cmnd[3] << 16) |
2614 ((u32) scp->cmnd[4] << 8) | (u32) scp->cmnd[5];
2615 }
2616
2617 memset(&io_info, 0, sizeof(struct IO_REQUEST_INFO));
2618 io_info.ldStartBlock = ((u64)start_lba_hi << 32) | start_lba_lo;
f9eff815 2619 io_info.numBlocks = datalength;
9c915a8c 2620 io_info.ldTgtId = device_id;
8bf7c65d 2621 io_info.r1_alt_dev_handle = MR_DEVHANDLE_INVALID;
f6c0d55c
S		 2622 scsi_buff_len = scsi_bufflen(scp);
2623 io_request->DataLength = cpu_to_le32(scsi_buff_len);
9c915a8c
AR		 2624
2625 if (scp->sc_data_direction == PCI_DMA_FROMDEVICE)
2626 io_info.isRead = 1;
2627
51087a86 2628 local_map_ptr = fusion->ld_drv_map[(instance->map_id & 1)];
d889344e 2629 ld = MR_TargetIdToLdGet(device_id, local_map_ptr);
9c915a8c 2630
d2d0358b
S		 2631 if (ld < instance->fw_supported_vd_count)
2632 raid = MR_LdRaidGet(ld, local_map_ptr);
2633
2634 if (!raid || (!fusion->fast_path_io)) {
d889344e 2635 io_request->RaidContext.raid_context.reg_lock_flags = 0;
f6c0d55c 2636 fp_possible = false;
9c915a8c 2637 } else {
36807e67 2638 if (MR_BuildRaidContext(instance, &io_info,
fdd84e25 2639 &io_request->RaidContext.raid_context,
21c9e160 2640 local_map_ptr, &raidLUN))
f6c0d55c 2641 fp_possible = (io_info.fpOkForIo > 0) ? true : false;
9c915a8c
AR		 2642 }
2643
99fe57b3
ML		 2644 cmd->request_desc->SCSIIO.MSIxIndex =
2645 instance->reply_map[raw_smp_processor_id()];
c8e858fe 2646
f6c0d55c
S		 2647 praid_context = &io_request->RaidContext;
2648
f369a315 2649 if (instance->adapter_type == VENTURA_SERIES) {
fdd84e25
SC		 2650 spin_lock_irqsave(&instance->stream_lock, spinlock_flags);
2651 megasas_stream_detect(instance, cmd, &io_info);
2652 spin_unlock_irqrestore(&instance->stream_lock, spinlock_flags);
2653 /* In ventura if stream detected for a read and it is read ahead
2654 * capable make this IO as LDIO
2655 */
a174118b 2656 if (is_stream_detected(&io_request->RaidContext.raid_context_g35) &&
f6c0d55c 2657 io_info.isRead && io_info.ra_capable)
fdd84e25 2658 fp_possible = false;
fdd84e25 2659
a48ba0ec
S		 2660 /* FP for Optimal raid level 1.
2661 * All large RAID-1 writes (> 32 KiB, both WT and WB modes)
2662 * are built by the driver as LD I/Os.
2663 * All small RAID-1 WT writes (<= 32 KiB) are built as FP I/Os
2664 * (there is never a reason to process these as buffered writes)
2665 * All small RAID-1 WB writes (<= 32 KiB) are built as FP I/Os
2666 * with the SLD bit asserted.
2667 */
8bf7c65d 2668 if (io_info.r1_alt_dev_handle != MR_DEVHANDLE_INVALID) {
f6c0d55c
S		 2669 mrdev_priv = scp->device->hostdata;
2670
2671 if (atomic_inc_return(&instance->fw_outstanding) >
2672 (instance->host->can_queue)) {
2673 fp_possible = false;
2674 atomic_dec(&instance->fw_outstanding);
a48ba0ec 2675 } else if ((scsi_buff_len > MR_LARGE_IO_MIN_SIZE) ||
49524b3c 2676 (atomic_dec_if_positive(&mrdev_priv->r1_ldio_hint) > 0)) {
a48ba0ec
S		 2677 fp_possible = false;
2678 atomic_dec(&instance->fw_outstanding);
2679 if (scsi_buff_len > MR_LARGE_IO_MIN_SIZE)
2680 atomic_set(&mrdev_priv->r1_ldio_hint,
2681 instance->r1_ldio_hint_default);
f6c0d55c
S		 2682 }
2683 }
2684
2685 /* If raid is NULL, set CPU affinity to default CPU0 */
2686 if (raid)
2687 megasas_set_raidflag_cpu_affinity(praid_context,
a48ba0ec
S		 2688 raid, fp_possible, io_info.isRead,
2689 scsi_buff_len);
f6c0d55c 2690 else
a174118b
S		 2691 praid_context->raid_context_g35.routing_flags |=
2692 (MR_RAID_CTX_CPUSEL_0 << MR_RAID_CTX_ROUTINGFLAGS_CPUSEL_SHIFT);
f6c0d55c 2693 }
d889344e 2694
9c915a8c
AR		 2695 if (fp_possible) {
2696 megasas_set_pd_lba(io_request, scp->cmd_len, &io_info, scp,
2697 local_map_ptr, start_lba_lo);
9c915a8c
AR		 2698 io_request->Function = MPI2_FUNCTION_SCSI_IO_REQUEST;
2699 cmd->request_desc->SCSIIO.RequestFlags =
2c048351 2700 (MPI2_REQ_DESCRIPT_FLAGS_FP_IO
9c915a8c 2701 << MEGASAS_REQ_DESCRIPT_FLAGS_TYPE_SHIFT);
c365178f 2702 if (instance->adapter_type == INVADER_SERIES) {
d889344e 2703 if (io_request->RaidContext.raid_context.reg_lock_flags ==
36807e67
AR		 2704 REGION_TYPE_UNUSED)
2705 cmd->request_desc->SCSIIO.RequestFlags =
2706 (MEGASAS_REQ_DESCRIPT_FLAGS_NO_LOCK <<
2707 MEGASAS_REQ_DESCRIPT_FLAGS_TYPE_SHIFT);
d889344e 2708 io_request->RaidContext.raid_context.type
fdd84e25
SC		 2709 = MPI2_TYPE_CUDA;
2710 io_request->RaidContext.raid_context.nseg = 0x1;
94cd65dd 2711 io_request->IoFlags |= cpu_to_le16(MPI25_SAS_DEVICE0_FLAGS_ENABLED_FAST_PATH);
d889344e 2712 io_request->RaidContext.raid_context.reg_lock_flags |=
36807e67
AR		 2713 (MR_RL_FLAGS_GRANT_DESTINATION_CUDA |
2714 MR_RL_FLAGS_SEQ_NUM_ENABLE);
f369a315 2715 } else if (instance->adapter_type == VENTURA_SERIES) {
a174118b
S		 2716 io_request->RaidContext.raid_context_g35.nseg_type |=
2717 (1 << RAID_CONTEXT_NSEG_SHIFT);
2718 io_request->RaidContext.raid_context_g35.nseg_type |=
2719 (MPI2_TYPE_CUDA << RAID_CONTEXT_TYPE_SHIFT);
2720 io_request->RaidContext.raid_context_g35.routing_flags |=
2721 (1 << MR_RAID_CTX_ROUTINGFLAGS_SQN_SHIFT);
d889344e 2722 io_request->IoFlags |=
a174118b 2723 cpu_to_le16(MPI25_SAS_DEVICE0_FLAGS_ENABLED_FAST_PATH);
36807e67 2724 }
5fc499b6
S		 2725 if (fusion->load_balance_info &&
2726 (fusion->load_balance_info[device_id].loadBalanceFlag) &&
2727 (io_info.isRead)) {
9c915a8c 2728 io_info.devHandle =
d2552ebe 2729 get_updated_dev_handle(instance,
9c915a8c 2730 &fusion->load_balance_info[device_id],
33203bc4 2731 &io_info, local_map_ptr);
9c915a8c 2732 scp->SCp.Status |= MEGASAS_LOAD_BALANCE_FLAG;
d2552ebe 2733 cmd->pd_r1_lb = io_info.pd_after_lb;
f369a315 2734 if (instance->adapter_type == VENTURA_SERIES)
d889344e
SC		 2735 io_request->RaidContext.raid_context_g35.span_arm
2736 = io_info.span_arm;
2737 else
2738 io_request->RaidContext.raid_context.span_arm
2739 = io_info.span_arm;
2740
9c915a8c
AR		 2741 } else
2742 scp->SCp.Status &= ~MEGASAS_LOAD_BALANCE_FLAG;
5765c5b8 2743
f369a315 2744 if (instance->adapter_type == VENTURA_SERIES)
69c337c0 2745 cmd->r1_alt_dev_handle = io_info.r1_alt_dev_handle;
8bf7c65d
S		 2746 else
2747 cmd->r1_alt_dev_handle = MR_DEVHANDLE_INVALID;
69c337c0 2748
5765c5b8 2749 if ((raidLUN[0] == 1) &&
75b96061 2750 (local_map_ptr->raidMap.devHndlInfo[io_info.pd_after_lb].validHandles > 1)) {
5765c5b8
SS		 2751 instance->dev_handle = !(instance->dev_handle);
2752 io_info.devHandle =
2753 local_map_ptr->raidMap.devHndlInfo[io_info.pd_after_lb].devHandle[instance->dev_handle];
2754 }
2755
9c915a8c
AR		 2756 cmd->request_desc->SCSIIO.DevHandle = io_info.devHandle;
2757 io_request->DevHandle = io_info.devHandle;
33203bc4 2758 cmd->pd_interface = io_info.pd_interface;
21c9e160
AR		 2759 /* populate the LUN field */
2760 memcpy(io_request->LUN, raidLUN, 8);
9c915a8c 2761 } else {
d889344e 2762 io_request->RaidContext.raid_context.timeout_value =
94cd65dd 2763 cpu_to_le16(local_map_ptr->raidMap.fpPdIoTimeoutSec);
9c915a8c
AR		 2764 cmd->request_desc->SCSIIO.RequestFlags =
2765 (MEGASAS_REQ_DESCRIPT_FLAGS_LD_IO
2766 << MEGASAS_REQ_DESCRIPT_FLAGS_TYPE_SHIFT);
c365178f 2767 if (instance->adapter_type == INVADER_SERIES) {
8f05024c 2768 if (io_info.do_fp_rlbypass ||
d889344e 2769 (io_request->RaidContext.raid_context.reg_lock_flags
fdd84e25 2770 == REGION_TYPE_UNUSED))
36807e67
AR		 2771 cmd->request_desc->SCSIIO.RequestFlags =
2772 (MEGASAS_REQ_DESCRIPT_FLAGS_NO_LOCK <<
2773 MEGASAS_REQ_DESCRIPT_FLAGS_TYPE_SHIFT);
d889344e 2774 io_request->RaidContext.raid_context.type
fdd84e25 2775 = MPI2_TYPE_CUDA;
d889344e 2776 io_request->RaidContext.raid_context.reg_lock_flags |=
36807e67
AR		 2777 (MR_RL_FLAGS_GRANT_DESTINATION_CPU0 |
2778 MR_RL_FLAGS_SEQ_NUM_ENABLE);
fdd84e25 2779 io_request->RaidContext.raid_context.nseg = 0x1;
f369a315 2780 } else if (instance->adapter_type == VENTURA_SERIES) {
a174118b
S		 2781 io_request->RaidContext.raid_context_g35.routing_flags |=
2782 (1 << MR_RAID_CTX_ROUTINGFLAGS_SQN_SHIFT);
2783 io_request->RaidContext.raid_context_g35.nseg_type |=
2784 (1 << RAID_CONTEXT_NSEG_SHIFT);
2785 io_request->RaidContext.raid_context_g35.nseg_type |=
2786 (MPI2_TYPE_CUDA << RAID_CONTEXT_TYPE_SHIFT);
36807e67
AR		 2787 }
2788 io_request->Function = MEGASAS_MPI2_FUNCTION_LD_IO_REQUEST;
94cd65dd 2789 io_request->DevHandle = cpu_to_le16(device_id);
d889344e 2790
9c915a8c
AR		 2791 } /* Not FP */
2792}
2793
2794/**
4a5c814d 2795 * megasas_build_ld_nonrw_fusion - prepares non rw ios for virtual disk
9c915a8c
AR		 2796 * @instance: Adapter soft state
2797 * @scp: SCSI command
2798 * @cmd: Command to be prepared
2799 *
4a5c814d 2800 * Prepares the io_request frame for non-rw io cmds for vd.
9c915a8c 2801 */
4a5c814d
SS		 2802static void megasas_build_ld_nonrw_fusion(struct megasas_instance *instance,
2803 struct scsi_cmnd *scmd, struct megasas_cmd_fusion *cmd)
9c915a8c
AR		 2804{
2805 u32 device_id;
2806 struct MPI2_RAID_SCSI_IO_REQUEST *io_request;
25fb13dd 2807 u16 ld;
51087a86 2808 struct MR_DRV_RAID_MAP_ALL *local_map_ptr;
9c915a8c 2809 struct fusion_context *fusion = instance->ctrl_context;
21c9e160 2810 u8 span, physArm;
9ab9ed38 2811 __le16 devHandle;
d2d0358b 2812 u32 arRef, pd;
21c9e160
AR		 2813 struct MR_LD_RAID *raid;
2814 struct RAID_CONTEXT *pRAID_Context;
4a5c814d 2815 u8 fp_possible = 1;
9c915a8c
AR		 2816
2817 io_request = cmd->io_request;
4a5c814d 2818 device_id = MEGASAS_DEV_INDEX(scmd);
51087a86 2819 local_map_ptr = fusion->ld_drv_map[(instance->map_id & 1)];
94cd65dd 2820 io_request->DataLength = cpu_to_le32(scsi_bufflen(scmd));
4a5c814d 2821 /* get RAID_Context pointer */
fdd84e25 2822 pRAID_Context = &io_request->RaidContext.raid_context;
4a5c814d 2823 /* Check with FW team */
d889344e
SC		 2824 pRAID_Context->virtual_disk_tgt_id = cpu_to_le16(device_id);
2825 pRAID_Context->reg_lock_row_lba = 0;
2826 pRAID_Context->reg_lock_length = 0;
21c9e160 2827
4a5c814d
SS		 2828 if (fusion->fast_path_io && (
2829 device_id < instance->fw_supported_vd_count)) {
ab2f0608 2830
21c9e160 2831 ld = MR_TargetIdToLdGet(device_id, local_map_ptr);
ab2f0608 2832 if (ld >= instance->fw_supported_vd_count)
4a5c814d 2833 fp_possible = 0;
d2d0358b
S		 2834 else {
2835 raid = MR_LdRaidGet(ld, local_map_ptr);
2836 if (!(raid->capability.fpNonRWCapable))
2837 fp_possible = 0;
2838 }
4a5c814d
SS		 2839 } else
2840 fp_possible = 0;
21c9e160 2841
4a5c814d
SS		 2842 if (!fp_possible) {
2843 io_request->Function = MEGASAS_MPI2_FUNCTION_LD_IO_REQUEST;
2844 io_request->DevHandle = cpu_to_le16(device_id);
2845 io_request->LUN[1] = scmd->device->lun;
d889344e 2846 pRAID_Context->timeout_value =
4a5c814d
SS		 2847 cpu_to_le16 (scmd->request->timeout / HZ);
2848 cmd->request_desc->SCSIIO.RequestFlags =
2849 (MPI2_REQ_DESCRIPT_FLAGS_SCSI_IO <<
2850 MEGASAS_REQ_DESCRIPT_FLAGS_TYPE_SHIFT);
2851 } else {
21c9e160
AR		 2852
2853 /* set RAID context values */
d889344e 2854 pRAID_Context->config_seq_num = raid->seqNum;
f369a315 2855 if (instance->adapter_type != VENTURA_SERIES)
d889344e
SC		 2856 pRAID_Context->reg_lock_flags = REGION_TYPE_SHARED_READ;
2857 pRAID_Context->timeout_value =
2858 cpu_to_le16(raid->fpIoTimeoutForLd);
21c9e160
AR		 2859
2860 /* get the DevHandle for the PD (since this is
2861 fpNonRWCapable, this is a single disk RAID0) */
2862 span = physArm = 0;
2863 arRef = MR_LdSpanArrayGet(ld, span, local_map_ptr);
2864 pd = MR_ArPdGet(arRef, physArm, local_map_ptr);
2865 devHandle = MR_PdDevHandleGet(pd, local_map_ptr);
2866
2867 /* build request descriptor */
2868 cmd->request_desc->SCSIIO.RequestFlags =
2c048351 2869 (MPI2_REQ_DESCRIPT_FLAGS_FP_IO <<
4a5c814d 2870 MEGASAS_REQ_DESCRIPT_FLAGS_TYPE_SHIFT);
21c9e160
AR		 2871 cmd->request_desc->SCSIIO.DevHandle = devHandle;
2872
2873 /* populate the LUN field */
2874 memcpy(io_request->LUN, raid->LUN, 8);
2875
2876 /* build the raidScsiIO structure */
2877 io_request->Function = MPI2_FUNCTION_SCSI_IO_REQUEST;
2878 io_request->DevHandle = devHandle;
4a5c814d
SS		 2879 }
2880}
21c9e160 2881
4a5c814d
SS		 2882/**
2883 * megasas_build_syspd_fusion - prepares rw/non-rw ios for syspd
2884 * @instance: Adapter soft state
2885 * @scp: SCSI command
2886 * @cmd: Command to be prepared
2887 * @fp_possible: parameter to detect fast path or firmware path io.
2888 *
2889 * Prepares the io_request frame for rw/non-rw io cmds for syspds
2890 */
2891static void
2892megasas_build_syspd_fusion(struct megasas_instance *instance,
1d6dbd17
S		 2893 struct scsi_cmnd *scmd, struct megasas_cmd_fusion *cmd,
2894 bool fp_possible)
4a5c814d
SS		 2895{
2896 u32 device_id;
2897 struct MPI2_RAID_SCSI_IO_REQUEST *io_request;
2898 u16 pd_index = 0;
2899 u16 os_timeout_value;
2900 u16 timeout_limit;
2901 struct MR_DRV_RAID_MAP_ALL *local_map_ptr;
2902 struct RAID_CONTEXT *pRAID_Context;
3761cb4c 2903 struct MR_PD_CFG_SEQ_NUM_SYNC *pd_sync;
33203bc4 2904 struct MR_PRIV_DEVICE *mr_device_priv_data;
4a5c814d 2905 struct fusion_context *fusion = instance->ctrl_context;
3761cb4c 2906 pd_sync = (void *)fusion->pd_seq_sync[(instance->pd_seq_map_id - 1) & 1];
4a5c814d
SS		 2907
2908 device_id = MEGASAS_DEV_INDEX(scmd);
2909 pd_index = MEGASAS_PD_INDEX(scmd);
2910 os_timeout_value = scmd->request->timeout / HZ;
33203bc4
S		 2911 mr_device_priv_data = scmd->device->hostdata;
2912 cmd->pd_interface = mr_device_priv_data->interface_type;
21c9e160 2913
4a5c814d
SS		 2914 io_request = cmd->io_request;
2915 /* get RAID_Context pointer */
fdd84e25 2916 pRAID_Context = &io_request->RaidContext.raid_context;
d889344e
SC		 2917 pRAID_Context->reg_lock_flags = 0;
2918 pRAID_Context->reg_lock_row_lba = 0;
2919 pRAID_Context->reg_lock_length = 0;
4a5c814d
SS		 2920 io_request->DataLength = cpu_to_le32(scsi_bufflen(scmd));
2921 io_request->LUN[1] = scmd->device->lun;
d889344e 2922 pRAID_Context->raid_flags = MR_RAID_FLAGS_IO_SUB_TYPE_SYSTEM_PD
4a5c814d
SS		 2923 << MR_RAID_CTX_RAID_FLAGS_IO_SUB_TYPE_SHIFT;
2924
3761cb4c 2925 /* If FW supports PD sequence number */
2926 if (instance->use_seqnum_jbod_fp &&
2927 instance->pd_list[pd_index].driveType == TYPE_DISK) {
2928 /* TgtId must be incremented by 255 as jbod seq number is index
2929 * below raid map
2930 */
ede7c3ce
SC		 2931 /* More than 256 PD/JBOD support for Ventura */
2932 if (instance->support_morethan256jbod)
2933 pRAID_Context->virtual_disk_tgt_id =
2934 pd_sync->seq[pd_index].pd_target_id;
2935 else
a174118b
S		 2936 pRAID_Context->virtual_disk_tgt_id =
2937 cpu_to_le16(device_id + (MAX_PHYSICAL_DEVICES - 1));
d889344e 2938 pRAID_Context->config_seq_num = pd_sync->seq[pd_index].seqNum;
3761cb4c 2939 io_request->DevHandle = pd_sync->seq[pd_index].devHandle;
f369a315 2940 if (instance->adapter_type == VENTURA_SERIES) {
a174118b
S		 2941 io_request->RaidContext.raid_context_g35.routing_flags |=
2942 (1 << MR_RAID_CTX_ROUTINGFLAGS_SQN_SHIFT);
2943 io_request->RaidContext.raid_context_g35.nseg_type |=
2944 (1 << RAID_CONTEXT_NSEG_SHIFT);
2945 io_request->RaidContext.raid_context_g35.nseg_type |=
2946 (MPI2_TYPE_CUDA << RAID_CONTEXT_TYPE_SHIFT);
2947 } else {
2948 pRAID_Context->type = MPI2_TYPE_CUDA;
2949 pRAID_Context->nseg = 0x1;
2950 pRAID_Context->reg_lock_flags |=
2951 (MR_RL_FLAGS_SEQ_NUM_ENABLE|MR_RL_FLAGS_GRANT_DESTINATION_CUDA);
2952 }
3761cb4c 2953 } else if (fusion->fast_path_io) {
d889344e
SC		 2954 pRAID_Context->virtual_disk_tgt_id = cpu_to_le16(device_id);
2955 pRAID_Context->config_seq_num = 0;
3761cb4c 2956 local_map_ptr = fusion->ld_drv_map[(instance->map_id & 1)];
2957 io_request->DevHandle =
2958 local_map_ptr->raidMap.devHndlInfo[device_id].curDevHdl;
2959 } else {
2960 /* Want to send all IO via FW path */
d889344e
SC		 2961 pRAID_Context->virtual_disk_tgt_id = cpu_to_le16(device_id);
2962 pRAID_Context->config_seq_num = 0;
9fb74c4e 2963 io_request->DevHandle = cpu_to_le16(0xFFFF);
3761cb4c 2964 }
4a5c814d
SS		 2965
2966 cmd->request_desc->SCSIIO.DevHandle = io_request->DevHandle;
4a5c814d 2967
99fe57b3
ML		 2968 cmd->request_desc->SCSIIO.MSIxIndex =
2969 instance->reply_map[raw_smp_processor_id()];
4a5c814d
SS		 2970
2971 if (!fp_possible) {
2972 /* system pd firmware path */
9c915a8c 2973 io_request->Function = MEGASAS_MPI2_FUNCTION_LD_IO_REQUEST;
9c915a8c
AR		 2974 cmd->request_desc->SCSIIO.RequestFlags =
2975 (MPI2_REQ_DESCRIPT_FLAGS_SCSI_IO <<
4a5c814d 2976 MEGASAS_REQ_DESCRIPT_FLAGS_TYPE_SHIFT);
d889344e
SC		 2977 pRAID_Context->timeout_value = cpu_to_le16(os_timeout_value);
2978 pRAID_Context->virtual_disk_tgt_id = cpu_to_le16(device_id);
4a5c814d
SS		 2979 } else {
2980 /* system pd Fast Path */
2981 io_request->Function = MPI2_FUNCTION_SCSI_IO_REQUEST;
4a5c814d
SS		 2982 timeout_limit = (scmd->device->type == TYPE_DISK) ?
2983 255 : 0xFFFF;
d889344e 2984 pRAID_Context->timeout_value =
4a5c814d
SS		 2985 cpu_to_le16((os_timeout_value > timeout_limit) ?
2986 timeout_limit : os_timeout_value);
c365178f 2987 if (instance->adapter_type >= INVADER_SERIES)
4a5c814d
SS		 2988 io_request->IoFlags |=
2989 cpu_to_le16(MPI25_SAS_DEVICE0_FLAGS_ENABLED_FAST_PATH);
d5573584 2990
4a5c814d 2991 cmd->request_desc->SCSIIO.RequestFlags =
2c048351 2992 (MPI2_REQ_DESCRIPT_FLAGS_FP_IO <<
4a5c814d 2993 MEGASAS_REQ_DESCRIPT_FLAGS_TYPE_SHIFT);
9c915a8c 2994 }
9c915a8c
AR		 2995}
2996
2997/**
2998 * megasas_build_io_fusion - Prepares IOs to devices
2999 * @instance: Adapter soft state
3000 * @scp: SCSI command
3001 * @cmd: Command to be prepared
3002 *
3003 * Invokes helper functions to prepare request frames
3004 * and sets flags appropriate for IO/Non-IO cmd
3005 */
3006int
3007megasas_build_io_fusion(struct megasas_instance *instance,
3008 struct scsi_cmnd *scp,
3009 struct megasas_cmd_fusion *cmd)
3010{
33203bc4 3011 int sge_count;
4a5c814d 3012 u8 cmd_type;
9c915a8c 3013 struct MPI2_RAID_SCSI_IO_REQUEST *io_request = cmd->io_request;
1d6dbd17
S		 3014 struct MR_PRIV_DEVICE *mr_device_priv_data;
3015 mr_device_priv_data = scp->device->hostdata;
9c915a8c 3016
9c915a8c 3017 /* Zero out some fields so they don't get reused */
9cb78c16 3018 memset(io_request->LUN, 0x0, 8);
9c915a8c
AR		 3019 io_request->CDB.EEDP32.PrimaryReferenceTag = 0;
3020 io_request->CDB.EEDP32.PrimaryApplicationTagMask = 0;
3021 io_request->EEDPFlags = 0;
3022 io_request->Control = 0;
3023 io_request->EEDPBlockSize = 0;
36807e67 3024 io_request->ChainOffset = 0;
d889344e
SC		 3025 io_request->RaidContext.raid_context.raid_flags = 0;
3026 io_request->RaidContext.raid_context.type = 0;
fdd84e25 3027 io_request->RaidContext.raid_context.nseg = 0;
9c915a8c
AR		 3028
3029 memcpy(io_request->CDB.CDB32, scp->cmnd, scp->cmd_len);
3030 /*
3031 * Just the CDB length,rest of the Flags are zero
3032 * This will be modified for FP in build_ldio_fusion
3033 */
94cd65dd 3034 io_request->IoFlags = cpu_to_le16(scp->cmd_len);
9c915a8c 3035
4a5c814d
SS		 3036 switch (cmd_type = megasas_cmd_type(scp)) {
3037 case READ_WRITE_LDIO:
9c915a8c 3038 megasas_build_ldio_fusion(instance, scp, cmd);
4a5c814d
SS		 3039 break;
3040 case NON_READ_WRITE_LDIO:
3041 megasas_build_ld_nonrw_fusion(instance, scp, cmd);
3042 break;
3043 case READ_WRITE_SYSPDIO:
1d6dbd17
S		 3044 megasas_build_syspd_fusion(instance, scp, cmd, true);
3045 break;
4a5c814d 3046 case NON_READ_WRITE_SYSPDIO:
1d6dbd17
S		 3047 if (instance->secure_jbod_support ||
3048 mr_device_priv_data->is_tm_capable)
3049 megasas_build_syspd_fusion(instance, scp, cmd, false);
4a5c814d 3050 else
1d6dbd17 3051 megasas_build_syspd_fusion(instance, scp, cmd, true);
4a5c814d
SS		 3052 break;
3053 default:
3054 break;
3055 }
9c915a8c
AR		 3056
3057 /*
3058 * Construct SGL
3059 */
3060
33203bc4 3061 sge_count = megasas_make_sgl(instance, scp, cmd);
9c915a8c 3062
33203bc4
S		 3063 if (sge_count > instance->max_num_sge || (sge_count < 0)) {
3064 dev_err(&instance->pdev->dev,
3065 "%s %d sge_count (%d) is out of range. Range is: 0-%d\n",
3066 __func__, __LINE__, sge_count, instance->max_num_sge);
9c915a8c
AR		 3067 return 1;
3068 }
3069
f369a315 3070 if (instance->adapter_type == VENTURA_SERIES) {
a174118b
S		 3071 set_num_sge(&io_request->RaidContext.raid_context_g35, sge_count);
3072 cpu_to_le16s(&io_request->RaidContext.raid_context_g35.routing_flags);
3073 cpu_to_le16s(&io_request->RaidContext.raid_context_g35.nseg_type);
3074 } else {
d889344e
SC		 3075 /* numSGE store lower 8 bit of sge_count.
3076 * numSGEExt store higher 8 bit of sge_count
3077 */
3078 io_request->RaidContext.raid_context.num_sge = sge_count;
3079 io_request->RaidContext.raid_context.num_sge_ext =
3080 (u8)(sge_count >> 8);
3081 }
9c915a8c 3082
94cd65dd 3083 io_request->SGLFlags = cpu_to_le16(MPI2_SGE_FLAGS_64_BIT_ADDRESSING);
9c915a8c
AR		 3084
3085 if (scp->sc_data_direction == PCI_DMA_TODEVICE)
94cd65dd 3086 io_request->Control |= cpu_to_le32(MPI2_SCSIIO_CONTROL_WRITE);
9c915a8c 3087 else if (scp->sc_data_direction == PCI_DMA_FROMDEVICE)
94cd65dd 3088 io_request->Control |= cpu_to_le32(MPI2_SCSIIO_CONTROL_READ);
9c915a8c
AR		 3089
3090 io_request->SGLOffset0 =
3091 offsetof(struct MPI2_RAID_SCSI_IO_REQUEST, SGL) / 4;
3092
107a60dd
S		 3093 io_request->SenseBufferLowAddress =
3094 cpu_to_le32(lower_32_bits(cmd->sense_phys_addr));
9c915a8c
AR		 3095 io_request->SenseBufferLength = SCSI_SENSE_BUFFERSIZE;
3096
3097 cmd->scmd = scp;
3098 scp->SCp.ptr = (char *)cmd;
3099
3100 return 0;
3101}
3102
52205ac8 3103static union MEGASAS_REQUEST_DESCRIPTOR_UNION *
9c915a8c
AR		 3104megasas_get_request_descriptor(struct megasas_instance *instance, u16 index)
3105{
3106 u8 *p;
3107 struct fusion_context *fusion;
3108
9c915a8c 3109 fusion = instance->ctrl_context;
69c337c0
SC		 3110 p = fusion->req_frames_desc +
3111 sizeof(union MEGASAS_REQUEST_DESCRIPTOR_UNION) * index;
9c915a8c
AR		 3112
3113 return (union MEGASAS_REQUEST_DESCRIPTOR_UNION *)p;
3114}
3115
69c337c0
SC		 3116
3117/* megasas_prepate_secondRaid1_IO
3118 * It prepares the raid 1 second IO
3119 */
3120void megasas_prepare_secondRaid1_IO(struct megasas_instance *instance,
3121 struct megasas_cmd_fusion *cmd,
3122 struct megasas_cmd_fusion *r1_cmd)
3123{
3124 union MEGASAS_REQUEST_DESCRIPTOR_UNION *req_desc, *req_desc2 = NULL;
3125 struct fusion_context *fusion;
69c337c0
SC		 3126 fusion = instance->ctrl_context;
3127 req_desc = cmd->request_desc;
8bf7c65d
S		 3128 /* copy the io request frame as well as 8 SGEs data for r1 command*/
3129 memcpy(r1_cmd->io_request, cmd->io_request,
3130 (sizeof(struct MPI2_RAID_SCSI_IO_REQUEST)));
3131 memcpy(&r1_cmd->io_request->SGL, &cmd->io_request->SGL,
3132 (fusion->max_sge_in_main_msg * sizeof(union MPI2_SGE_IO_UNION)));
3133 /*sense buffer is different for r1 command*/
3134 r1_cmd->io_request->SenseBufferLowAddress =
107a60dd 3135 cpu_to_le32(lower_32_bits(r1_cmd->sense_phys_addr));
8bf7c65d
S		 3136 r1_cmd->scmd = cmd->scmd;
3137 req_desc2 = megasas_get_request_descriptor(instance,
3138 (r1_cmd->index - 1));
3139 req_desc2->Words = 0;
3140 r1_cmd->request_desc = req_desc2;
3141 req_desc2->SCSIIO.SMID = cpu_to_le16(r1_cmd->index);
3142 req_desc2->SCSIIO.RequestFlags = req_desc->SCSIIO.RequestFlags;
3143 r1_cmd->request_desc->SCSIIO.DevHandle = cmd->r1_alt_dev_handle;
3144 r1_cmd->io_request->DevHandle = cmd->r1_alt_dev_handle;
3145 r1_cmd->r1_alt_dev_handle = cmd->io_request->DevHandle;
3146 cmd->io_request->RaidContext.raid_context_g35.smid.peer_smid =
3147 cpu_to_le16(r1_cmd->index);
3148 r1_cmd->io_request->RaidContext.raid_context_g35.smid.peer_smid =
3149 cpu_to_le16(cmd->index);
3150 /*MSIxIndex of both commands request descriptors should be same*/
3151 r1_cmd->request_desc->SCSIIO.MSIxIndex =
3152 cmd->request_desc->SCSIIO.MSIxIndex;
3153 /*span arm is different for r1 cmd*/
3154 r1_cmd->io_request->RaidContext.raid_context_g35.span_arm =
69c337c0 3155 cmd->io_request->RaidContext.raid_context_g35.span_arm + 1;
69c337c0
SC		 3156}
3157
9c915a8c
AR		 3158/**
3159 * megasas_build_and_issue_cmd_fusion -Main routine for building and
3160 * issuing non IOCTL cmd
3161 * @instance: Adapter soft state
3162 * @scmd: pointer to scsi cmd from OS
3163 */
3164static u32
3165megasas_build_and_issue_cmd_fusion(struct megasas_instance *instance,
3166 struct scsi_cmnd *scmd)
3167{
69c337c0 3168 struct megasas_cmd_fusion *cmd, *r1_cmd = NULL;
9c915a8c
AR		 3169 union MEGASAS_REQUEST_DESCRIPTOR_UNION *req_desc;
3170 u32 index;
3171 struct fusion_context *fusion;
3172
3173 fusion = instance->ctrl_context;
3174
308ec459
SS		 3175 if ((megasas_cmd_type(scmd) == READ_WRITE_LDIO) &&
3176 instance->ldio_threshold &&
3177 (atomic_inc_return(&instance->ldio_outstanding) >
3178 instance->ldio_threshold)) {
3179 atomic_dec(&instance->ldio_outstanding);
3180 return SCSI_MLQUEUE_DEVICE_BUSY;
3181 }
3182
69c337c0
SC		 3183 if (atomic_inc_return(&instance->fw_outstanding) >
3184 instance->host->can_queue) {
69c337c0
SC		 3185 atomic_dec(&instance->fw_outstanding);
3186 return SCSI_MLQUEUE_HOST_BUSY;
3187 }
3188
4026e9aa 3189 cmd = megasas_get_cmd_fusion(instance, scmd->request->tag);
9c915a8c 3190
69c337c0
SC		 3191 if (!cmd) {
3192 atomic_dec(&instance->fw_outstanding);
3193 return SCSI_MLQUEUE_HOST_BUSY;
3194 }
3195
9c915a8c
AR		 3196 index = cmd->index;
3197
3198 req_desc = megasas_get_request_descriptor(instance, index-1);
9c915a8c
AR		 3199
3200 req_desc->Words = 0;
3201 cmd->request_desc = req_desc;
9c915a8c
AR		 3202
3203 if (megasas_build_io_fusion(instance, scmd, cmd)) {
3204 megasas_return_cmd_fusion(instance, cmd);
1be18254 3205 dev_err(&instance->pdev->dev, "Error building command\n");
9c915a8c 3206 cmd->request_desc = NULL;
69c337c0 3207 atomic_dec(&instance->fw_outstanding);
f9a9dee6 3208 return SCSI_MLQUEUE_HOST_BUSY;
9c915a8c
AR		 3209 }
3210
3211 req_desc = cmd->request_desc;
94cd65dd 3212 req_desc->SCSIIO.SMID = cpu_to_le16(index);
9c915a8c
AR		 3213
3214 if (cmd->io_request->ChainOffset != 0 &&
3215 cmd->io_request->ChainOffset != 0xF)
1be18254 3216 dev_err(&instance->pdev->dev, "The chain offset value is not "
9c915a8c 3217 "correct : %x\n", cmd->io_request->ChainOffset);
69c337c0
SC		 3218 /*
3219 * if it is raid 1/10 fp write capable.
3220 * try to get second command from pool and construct it.
3221 * From FW, it has confirmed that lba values of two PDs
3222 * corresponds to single R1/10 LD are always same
3223 *
3224 */
3225 /* driver side count always should be less than max_fw_cmds
3226 * to get new command
3227 */
8bf7c65d 3228 if (cmd->r1_alt_dev_handle != MR_DEVHANDLE_INVALID) {
69c337c0
SC		 3229 r1_cmd = megasas_get_cmd_fusion(instance,
3230 (scmd->request->tag + instance->max_fw_cmds));
3231 megasas_prepare_secondRaid1_IO(instance, cmd, r1_cmd);
3232 }
3233
18bbcabd 3234
9c915a8c
AR		 3235 /*
3236 * Issue the command to the FW
3237 */
9c915a8c 3238
45b8a35e 3239 megasas_fire_cmd_fusion(instance, req_desc);
9c915a8c 3240
18bbcabd 3241 if (r1_cmd)
45b8a35e 3242 megasas_fire_cmd_fusion(instance, r1_cmd->request_desc);
18bbcabd 3243
69c337c0 3244
9c915a8c
AR		 3245 return 0;
3246}
3247
8bf7c65d
S		 3248/**
3249 * megasas_complete_r1_command -
3250 * completes R1 FP write commands which has valid peer smid
3251 * @instance: Adapter soft state
3252 * @cmd_fusion: MPT command frame
3253 *
3254 */
3255static inline void
3256megasas_complete_r1_command(struct megasas_instance *instance,
3257 struct megasas_cmd_fusion *cmd)
3258{
3259 u8 *sense, status, ex_status;
3260 u32 data_length;
3261 u16 peer_smid;
3262 struct fusion_context *fusion;
3263 struct megasas_cmd_fusion *r1_cmd = NULL;
3264 struct scsi_cmnd *scmd_local = NULL;
3265 struct RAID_CONTEXT_G35 *rctx_g35;
3266
3267 rctx_g35 = &cmd->io_request->RaidContext.raid_context_g35;
3268 fusion = instance->ctrl_context;
3269 peer_smid = le16_to_cpu(rctx_g35->smid.peer_smid);
3270
3271 r1_cmd = fusion->cmd_list[peer_smid - 1];
3272 scmd_local = cmd->scmd;
3273 status = rctx_g35->status;
3274 ex_status = rctx_g35->ex_status;
3275 data_length = cmd->io_request->DataLength;
3276 sense = cmd->sense;
3277
3278 cmd->cmd_completed = true;
3279
3280 /* Check if peer command is completed or not*/
3281 if (r1_cmd->cmd_completed) {
3282 rctx_g35 = &r1_cmd->io_request->RaidContext.raid_context_g35;
3283 if (rctx_g35->status != MFI_STAT_OK) {
3284 status = rctx_g35->status;
3285 ex_status = rctx_g35->ex_status;
3286 data_length = r1_cmd->io_request->DataLength;
3287 sense = r1_cmd->sense;
3288 }
3289
3290 megasas_return_cmd_fusion(instance, r1_cmd);
3291 map_cmd_status(fusion, scmd_local, status, ex_status,
3292 le32_to_cpu(data_length), sense);
3293 if (instance->ldio_threshold &&
3294 megasas_cmd_type(scmd_local) == READ_WRITE_LDIO)
3295 atomic_dec(&instance->ldio_outstanding);
3296 scmd_local->SCp.ptr = NULL;
3297 megasas_return_cmd_fusion(instance, cmd);
3298 scsi_dma_unmap(scmd_local);
3299 scmd_local->scsi_done(scmd_local);
3300 }
3301}
3302
9c915a8c
AR		 3303/**
3304 * complete_cmd_fusion - Completes command
3305 * @instance: Adapter soft state
3306 * Completes all commands that is in reply descriptor queue
3307 */
3308int
c8e858fe 3309complete_cmd_fusion(struct megasas_instance *instance, u32 MSIxIndex)
9c915a8c
AR		 3310{
3311 union MPI2_REPLY_DESCRIPTORS_UNION *desc;
3312 struct MPI2_SCSI_IO_SUCCESS_REPLY_DESCRIPTOR *reply_desc;
3313 struct MPI2_RAID_SCSI_IO_REQUEST *scsi_io_req;
3314 struct fusion_context *fusion;
3315 struct megasas_cmd *cmd_mfi;
8bf7c65d 3316 struct megasas_cmd_fusion *cmd_fusion;
9c915a8c 3317 u16 smid, num_completed;
8bf7c65d
S		 3318 u8 reply_descript_type, *sense, status, extStatus;
3319 u32 device_id, data_length;
9c915a8c
AR		 3320 union desc_value d_val;
3321 struct LD_LOAD_BALANCE_INFO *lbinfo;
db4fc864 3322 int threshold_reply_count = 0;
4026e9aa 3323 struct scsi_cmnd *scmd_local = NULL;
18365b13
SS		 3324 struct MR_TASK_MANAGE_REQUEST *mr_tm_req;
3325 struct MPI2_SCSI_TASK_MANAGE_REQUEST *mpi_tm_req;
9c915a8c
AR		 3326
3327 fusion = instance->ctrl_context;
3328
8a01a41d 3329 if (atomic_read(&instance->adprecovery) == MEGASAS_HW_CRITICAL_ERROR)
9c915a8c
AR		 3330 return IRQ_HANDLED;
3331
179ac142
SS		 3332 desc = fusion->reply_frames_desc[MSIxIndex] +
3333 fusion->last_reply_idx[MSIxIndex];
9c915a8c
AR		 3334
3335 reply_desc = (struct MPI2_SCSI_IO_SUCCESS_REPLY_DESCRIPTOR *)desc;
3336
3337 d_val.word = desc->Words;
3338
3339 reply_descript_type = reply_desc->ReplyFlags &
3340 MPI2_RPY_DESCRIPT_FLAGS_TYPE_MASK;
3341
3342 if (reply_descript_type == MPI2_RPY_DESCRIPT_FLAGS_UNUSED)
3343 return IRQ_NONE;
3344
9c915a8c
AR		 3345 num_completed = 0;
3346
c6f5bf81
CH		 3347 while (d_val.u.low != cpu_to_le32(UINT_MAX) &&
3348 d_val.u.high != cpu_to_le32(UINT_MAX)) {
69c337c0 3349
94cd65dd 3350 smid = le16_to_cpu(reply_desc->SMID);
9c915a8c 3351 cmd_fusion = fusion->cmd_list[smid - 1];
8bf7c65d
S		 3352 scsi_io_req = (struct MPI2_RAID_SCSI_IO_REQUEST *)
3353 cmd_fusion->io_request;
9c915a8c 3354
4026e9aa 3355 scmd_local = cmd_fusion->scmd;
fdd84e25 3356 status = scsi_io_req->RaidContext.raid_context.status;
d889344e 3357 extStatus = scsi_io_req->RaidContext.raid_context.ex_status;
69c337c0
SC		 3358 sense = cmd_fusion->sense;
3359 data_length = scsi_io_req->DataLength;
9c915a8c
AR		 3360
3361 switch (scsi_io_req->Function) {
18365b13
SS		 3362 case MPI2_FUNCTION_SCSI_TASK_MGMT:
3363 mr_tm_req = (struct MR_TASK_MANAGE_REQUEST *)
3364 cmd_fusion->io_request;
3365 mpi_tm_req = (struct MPI2_SCSI_TASK_MANAGE_REQUEST *)
3366 &mr_tm_req->TmRequest;
3367 dev_dbg(&instance->pdev->dev, "TM completion:"
3368 "type: 0x%x TaskMID: 0x%x\n",
3369 mpi_tm_req->TaskType, mpi_tm_req->TaskMID);
3370 complete(&cmd_fusion->done);
3371 break;
9c915a8c
AR		 3372 case MPI2_FUNCTION_SCSI_IO_REQUEST: /*Fast Path IO.*/
3373 /* Update load balancing info */
8bf7c65d
S		 3374 if (fusion->load_balance_info &&
3375 (cmd_fusion->scmd->SCp.Status &
3376 MEGASAS_LOAD_BALANCE_FLAG)) {
3377 device_id = MEGASAS_DEV_INDEX(scmd_local);
3378 lbinfo = &fusion->load_balance_info[device_id];
d2552ebe 3379 atomic_dec(&lbinfo->scsi_pending_cmds[cmd_fusion->pd_r1_lb]);
8bf7c65d 3380 cmd_fusion->scmd->SCp.Status &= ~MEGASAS_LOAD_BALANCE_FLAG;
9c915a8c 3381 }
8bf7c65d 3382 //Fall thru and complete IO
9c915a8c 3383 case MEGASAS_MPI2_FUNCTION_LD_IO_REQUEST: /* LD-IO Path */
8bf7c65d
S		 3384 atomic_dec(&instance->fw_outstanding);
3385 if (cmd_fusion->r1_alt_dev_handle == MR_DEVHANDLE_INVALID) {
69c337c0 3386 map_cmd_status(fusion, scmd_local, status,
8bf7c65d
S		 3387 extStatus, le32_to_cpu(data_length),
3388 sense);
3389 if (instance->ldio_threshold &&
3390 (megasas_cmd_type(scmd_local) == READ_WRITE_LDIO))
b71b49c2 3391 atomic_dec(&instance->ldio_outstanding);
8bf7c65d 3392 scmd_local->SCp.ptr = NULL;
69c337c0
SC		 3393 megasas_return_cmd_fusion(instance, cmd_fusion);
3394 scsi_dma_unmap(scmd_local);
3395 scmd_local->scsi_done(scmd_local);
8bf7c65d
S		 3396 } else /* Optimal VD - R1 FP command completion. */
3397 megasas_complete_r1_command(instance, cmd_fusion);
9c915a8c
AR		 3398 break;
3399 case MEGASAS_MPI2_FUNCTION_PASSTHRU_IO_REQUEST: /*MFI command */
3400 cmd_mfi = instance->cmd_list[cmd_fusion->sync_cmd_idx];
4026e9aa
SS		 3401 /* Poll mode. Dummy free.
3402 * In case of Interrupt mode, caller has reverse check.
3403 */
3404 if (cmd_mfi->flags & DRV_DCMD_POLLED_MODE) {
3405 cmd_mfi->flags &= ~DRV_DCMD_POLLED_MODE;
3406 megasas_return_cmd(instance, cmd_mfi);
3407 } else
3408 megasas_complete_cmd(instance, cmd_mfi, DID_OK);
9c915a8c
AR		 3409 break;
3410 }
3411
c8e858fe
AR		 3412 fusion->last_reply_idx[MSIxIndex]++;
3413 if (fusion->last_reply_idx[MSIxIndex] >=
3414 fusion->reply_q_depth)
3415 fusion->last_reply_idx[MSIxIndex] = 0;
9c915a8c 3416
c6f5bf81 3417 desc->Words = cpu_to_le64(ULLONG_MAX);
9c915a8c 3418 num_completed++;
db4fc864 3419 threshold_reply_count++;
9c915a8c
AR		 3420
3421 /* Get the next reply descriptor */
c8e858fe 3422 if (!fusion->last_reply_idx[MSIxIndex])
179ac142 3423 desc = fusion->reply_frames_desc[MSIxIndex];
9c915a8c
AR		 3424 else
3425 desc++;
3426
3427 reply_desc =
3428 (struct MPI2_SCSI_IO_SUCCESS_REPLY_DESCRIPTOR *)desc;
3429
3430 d_val.word = desc->Words;
3431
3432 reply_descript_type = reply_desc->ReplyFlags &
3433 MPI2_RPY_DESCRIPT_FLAGS_TYPE_MASK;
3434
3435 if (reply_descript_type == MPI2_RPY_DESCRIPT_FLAGS_UNUSED)
3436 break;
db4fc864
SS		 3437 /*
3438 * Write to reply post host index register after completing threshold
3439 * number of reply counts and still there are more replies in reply queue
3440 * pending to be completed
3441 */
3442 if (threshold_reply_count >= THRESHOLD_REPLY_COUNT) {
2493c67e 3443 if (instance->msix_combined)
db4fc864
SS		 3444 writel(((MSIxIndex & 0x7) << 24) |
3445 fusion->last_reply_idx[MSIxIndex],
3446 instance->reply_post_host_index_addr[MSIxIndex/8]);
3447 else
3448 writel((MSIxIndex << 24) |
3449 fusion->last_reply_idx[MSIxIndex],
3450 instance->reply_post_host_index_addr[0]);
3451 threshold_reply_count = 0;
3452 }
9c915a8c
AR		 3453 }
3454
3455 if (!num_completed)
3456 return IRQ_NONE;
3457
3458 wmb();
2493c67e 3459 if (instance->msix_combined)
d46a3ad6
SS		 3460 writel(((MSIxIndex & 0x7) << 24) |
3461 fusion->last_reply_idx[MSIxIndex],
3462 instance->reply_post_host_index_addr[MSIxIndex/8]);
3463 else
3464 writel((MSIxIndex << 24) |
3465 fusion->last_reply_idx[MSIxIndex],
3466 instance->reply_post_host_index_addr[0]);
53ef2bbd 3467 megasas_check_and_restore_queue_depth(instance);
9c915a8c
AR		 3468 return IRQ_HANDLED;
3469}
3470
29206da1
S		 3471/**
3472 * megasas_sync_irqs - Synchronizes all IRQs owned by adapter
3473 * @instance: Adapter soft state
3474 */
3475void megasas_sync_irqs(unsigned long instance_addr)
3476{
3477 u32 count, i;
3478 struct megasas_instance *instance =
3479 (struct megasas_instance *)instance_addr;
3480
3481 count = instance->msix_vectors > 0 ? instance->msix_vectors : 1;
3482
3483 for (i = 0; i < count; i++)
3484 synchronize_irq(pci_irq_vector(instance->pdev, i));
3485}
3486
9c915a8c
AR		 3487/**
3488 * megasas_complete_cmd_dpc_fusion - Completes command
3489 * @instance: Adapter soft state
3490 *
3491 * Tasklet to complete cmds
3492 */
3493void
3494megasas_complete_cmd_dpc_fusion(unsigned long instance_addr)
3495{
3496 struct megasas_instance *instance =
3497 (struct megasas_instance *)instance_addr;
3498 unsigned long flags;
c8e858fe
AR		 3499 u32 count, MSIxIndex;
3500
3501 count = instance->msix_vectors > 0 ? instance->msix_vectors : 1;
9c915a8c
AR		 3502
3503 /* If we have already declared adapter dead, donot complete cmds */
3504 spin_lock_irqsave(&instance->hba_lock, flags);
8a01a41d 3505 if (atomic_read(&instance->adprecovery) == MEGASAS_HW_CRITICAL_ERROR) {
9c915a8c
AR		 3506 spin_unlock_irqrestore(&instance->hba_lock, flags);
3507 return;
3508 }
3509 spin_unlock_irqrestore(&instance->hba_lock, flags);
3510
c8e858fe
AR		 3511 for (MSIxIndex = 0 ; MSIxIndex < count; MSIxIndex++)
3512 complete_cmd_fusion(instance, MSIxIndex);
9c915a8c
AR		 3513}
3514
3515/**
3516 * megasas_isr_fusion - isr entry point
3517 */
3518irqreturn_t megasas_isr_fusion(int irq, void *devp)
3519{
c8e858fe
AR		 3520 struct megasas_irq_context *irq_context = devp;
3521 struct megasas_instance *instance = irq_context->instance;
fc62b3fc 3522 u32 mfiStatus, fw_state, dma_state;
9c915a8c 3523
d46a3ad6
SS		 3524 if (instance->mask_interrupts)
3525 return IRQ_NONE;
3526
c8e858fe 3527 if (!instance->msix_vectors) {
9c915a8c
AR		 3528 mfiStatus = instance->instancet->clear_intr(instance->reg_set);
3529 if (!mfiStatus)
3530 return IRQ_NONE;
3531 }
3532
3533 /* If we are resetting, bail */
6497b247
AR		 3534 if (test_bit(MEGASAS_FUSION_IN_RESET, &instance->reset_flags)) {
3535 instance->instancet->clear_intr(instance->reg_set);
9c915a8c 3536 return IRQ_HANDLED;
6497b247 3537 }
9c915a8c 3538
c8e858fe 3539 if (!complete_cmd_fusion(instance, irq_context->MSIxIndex)) {
6497b247 3540 instance->instancet->clear_intr(instance->reg_set);
9c915a8c
AR		 3541 /* If we didn't complete any commands, check for FW fault */
3542 fw_state = instance->instancet->read_fw_status_reg(
3543 instance->reg_set) & MFI_STATE_MASK;
fc62b3fc
SS		 3544 dma_state = instance->instancet->read_fw_status_reg
3545 (instance->reg_set) & MFI_STATE_DMADONE;
3546 if (instance->crash_dump_drv_support &&
3547 instance->crash_dump_app_support) {
3548 /* Start collecting crash, if DMA bit is done */
3549 if ((fw_state == MFI_STATE_FAULT) && dma_state)
3550 schedule_work(&instance->crash_init);
a1dfd62c
KD		 3551 else if (fw_state == MFI_STATE_FAULT) {
3552 if (instance->unload == 0)
3553 schedule_work(&instance->work_init);
3554 }
fc62b3fc 3555 } else if (fw_state == MFI_STATE_FAULT) {
1be18254 3556 dev_warn(&instance->pdev->dev, "Iop2SysDoorbellInt"
229fe47c 3557 "for scsi%d\n", instance->host->host_no);
a1dfd62c
KD		 3558 if (instance->unload == 0)
3559 schedule_work(&instance->work_init);
229fe47c 3560 }
9c915a8c
AR		 3561 }
3562
3563 return IRQ_HANDLED;
3564}
3565
3566/**
3567 * build_mpt_mfi_pass_thru - builds a cmd fo MFI Pass thru
3568 * @instance: Adapter soft state
3569 * mfi_cmd: megasas_cmd pointer
3570 *
3571 */
7a7ae4f1 3572void
9c915a8c
AR		 3573build_mpt_mfi_pass_thru(struct megasas_instance *instance,
3574 struct megasas_cmd *mfi_cmd)
3575{
3576 struct MPI25_IEEE_SGE_CHAIN64 *mpi25_ieee_chain;
3577 struct MPI2_RAID_SCSI_IO_REQUEST *io_req;
3578 struct megasas_cmd_fusion *cmd;
3579 struct fusion_context *fusion;
3580 struct megasas_header *frame_hdr = &mfi_cmd->frame->hdr;
3581
4026e9aa
SS		 3582 fusion = instance->ctrl_context;
3583
3584 cmd = megasas_get_cmd_fusion(instance,
3585 instance->max_scsi_cmds + mfi_cmd->index);
9c915a8c
AR		 3586
3587 /* Save the smid. To be used for returning the cmd */
3588 mfi_cmd->context.smid = cmd->index;
90dc9d98 3589
9c915a8c
AR		 3590 /*
3591 * For cmds where the flag is set, store the flag and check
3592 * on completion. For cmds with this flag, don't call
3593 * megasas_complete_cmd
3594 */
3595
6e755ddc 3596 if (frame_hdr->flags & cpu_to_le16(MFI_FRAME_DONT_POST_IN_REPLY_QUEUE))
4026e9aa 3597 mfi_cmd->flags |= DRV_DCMD_POLLED_MODE;
9c915a8c 3598
9c915a8c 3599 io_req = cmd->io_request;
36807e67 3600
c365178f 3601 if (instance->adapter_type >= INVADER_SERIES) {
36807e67
AR		 3602 struct MPI25_IEEE_SGE_CHAIN64 *sgl_ptr_end =
3603 (struct MPI25_IEEE_SGE_CHAIN64 *)&io_req->SGL;
3604 sgl_ptr_end += fusion->max_sge_in_main_msg - 1;
3605 sgl_ptr_end->Flags = 0;
3606 }
3607
9c915a8c
AR		 3608 mpi25_ieee_chain =
3609 (struct MPI25_IEEE_SGE_CHAIN64 *)&io_req->SGL.IeeeChain;
3610
3611 io_req->Function = MEGASAS_MPI2_FUNCTION_PASSTHRU_IO_REQUEST;
3612 io_req->SGLOffset0 = offsetof(struct MPI2_RAID_SCSI_IO_REQUEST,
3613 SGL) / 4;
3614 io_req->ChainOffset = fusion->chain_offset_mfi_pthru;
3615
94cd65dd 3616 mpi25_ieee_chain->Address = cpu_to_le64(mfi_cmd->frame_phys_addr);
9c915a8c
AR		 3617
3618 mpi25_ieee_chain->Flags = IEEE_SGE_FLAGS_CHAIN_ELEMENT |
3619 MPI2_IEEE_SGE_FLAGS_IOCPLBNTA_ADDR;
3620
ed2983f4 3621 mpi25_ieee_chain->Length = cpu_to_le32(instance->mfi_frame_size);
9c915a8c
AR		 3622}
3623
3624/**
3625 * build_mpt_cmd - Calls helper function to build a cmd MFI Pass thru cmd
3626 * @instance: Adapter soft state
3627 * @cmd: mfi cmd to build
3628 *
3629 */
3630union MEGASAS_REQUEST_DESCRIPTOR_UNION *
3631build_mpt_cmd(struct megasas_instance *instance, struct megasas_cmd *cmd)
3632{
52205ac8 3633 union MEGASAS_REQUEST_DESCRIPTOR_UNION *req_desc = NULL;
9c915a8c
AR		 3634 u16 index;
3635
7a7ae4f1 3636 build_mpt_mfi_pass_thru(instance, cmd);
9c915a8c
AR		 3637 index = cmd->context.smid;
3638
3639 req_desc = megasas_get_request_descriptor(instance, index - 1);
3640
9c915a8c
AR		 3641 req_desc->Words = 0;
3642 req_desc->SCSIIO.RequestFlags = (MPI2_REQ_DESCRIPT_FLAGS_SCSI_IO <<
3643 MEGASAS_REQ_DESCRIPT_FLAGS_TYPE_SHIFT);
3644
94cd65dd 3645 req_desc->SCSIIO.SMID = cpu_to_le16(index);
9c915a8c
AR		 3646
3647 return req_desc;
3648}
3649
3650/**
3651 * megasas_issue_dcmd_fusion - Issues a MFI Pass thru cmd
3652 * @instance: Adapter soft state
3653 * @cmd: mfi cmd pointer
3654 *
3655 */
f4fc2093 3656void
9c915a8c
AR		 3657megasas_issue_dcmd_fusion(struct megasas_instance *instance,
3658 struct megasas_cmd *cmd)
3659{
3660 union MEGASAS_REQUEST_DESCRIPTOR_UNION *req_desc;
9c915a8c
AR		 3661
3662 req_desc = build_mpt_cmd(instance, cmd);
6d40afbc 3663
45b8a35e 3664 megasas_fire_cmd_fusion(instance, req_desc);
f4fc2093 3665 return;
9c915a8c
AR		 3666}
3667
3668/**
3669 * megasas_release_fusion - Reverses the FW initialization
4b63b286 3670 * @instance: Adapter soft state
9c915a8c
AR		 3671 */
3672void
3673megasas_release_fusion(struct megasas_instance *instance)
3674{
b9637d14 3675 megasas_free_ioc_init_cmd(instance);
9c915a8c
AR		 3676 megasas_free_cmds(instance);
3677 megasas_free_cmds_fusion(instance);
3678
3679 iounmap(instance->reg_set);
3680
e7f85168 3681 pci_release_selected_regions(instance->pdev, 1<<instance->bar);
9c915a8c
AR		 3682}
3683
3684/**
3685 * megasas_read_fw_status_reg_fusion - returns the current FW status value
3686 * @regs: MFI register set
3687 */
3688static u32
3689megasas_read_fw_status_reg_fusion(struct megasas_register_set __iomem *regs)
3690{
3691 return readl(&(regs)->outbound_scratch_pad);
3692}
3693
fc62b3fc
SS		 3694/**
3695 * megasas_alloc_host_crash_buffer - Host buffers for Crash dump collection from Firmware
3696 * @instance: Controller's soft instance
3697 * return: Number of allocated host crash buffers
3698 */
3699static void
3700megasas_alloc_host_crash_buffer(struct megasas_instance *instance)
3701{
3702 unsigned int i;
3703
fc62b3fc 3704 for (i = 0; i < MAX_CRASH_DUMP_SIZE; i++) {
def3e8df 3705 instance->crash_buf[i] = vzalloc(CRASH_DMA_BUF_SIZE);
fc62b3fc
SS		 3706 if (!instance->crash_buf[i]) {
3707 dev_info(&instance->pdev->dev, "Firmware crash dump "
3708 "memory allocation failed at index %d\n", i);
3709 break;
3710 }
3711 }
3712 instance->drv_buf_alloc = i;
3713}
3714
3715/**
3716 * megasas_free_host_crash_buffer - Host buffers for Crash dump collection from Firmware
3717 * @instance: Controller's soft instance
3718 */
3719void
3720megasas_free_host_crash_buffer(struct megasas_instance *instance)
3721{
def3e8df 3722 unsigned int i;
fc62b3fc
SS		 3723 for (i = 0; i < instance->drv_buf_alloc; i++) {
3724 if (instance->crash_buf[i])
def3e8df 3725 vfree(instance->crash_buf[i]);
fc62b3fc
SS		 3726 }
3727 instance->drv_buf_index = 0;
3728 instance->drv_buf_alloc = 0;
3729 instance->fw_crash_state = UNAVAILABLE;
3730 instance->fw_crash_buffer_size = 0;
3731}
3732
9c915a8c
AR		 3733/**
3734 * megasas_adp_reset_fusion - For controller reset
3735 * @regs: MFI register set
3736 */
3737static int
3738megasas_adp_reset_fusion(struct megasas_instance *instance,
3739 struct megasas_register_set __iomem *regs)
3740{
79b82c2c 3741 u32 host_diag, abs_state, retry;
3742
3743 /* Now try to reset the chip */
3744 writel(MPI2_WRSEQ_FLUSH_KEY_VALUE, &instance->reg_set->fusion_seq_offset);
3745 writel(MPI2_WRSEQ_1ST_KEY_VALUE, &instance->reg_set->fusion_seq_offset);
3746 writel(MPI2_WRSEQ_2ND_KEY_VALUE, &instance->reg_set->fusion_seq_offset);
3747 writel(MPI2_WRSEQ_3RD_KEY_VALUE, &instance->reg_set->fusion_seq_offset);
3748 writel(MPI2_WRSEQ_4TH_KEY_VALUE, &instance->reg_set->fusion_seq_offset);
3749 writel(MPI2_WRSEQ_5TH_KEY_VALUE, &instance->reg_set->fusion_seq_offset);
3750 writel(MPI2_WRSEQ_6TH_KEY_VALUE, &instance->reg_set->fusion_seq_offset);
3751
3752 /* Check that the diag write enable (DRWE) bit is on */
3753 host_diag = readl(&instance->reg_set->fusion_host_diag);
3754 retry = 0;
3755 while (!(host_diag & HOST_DIAG_WRITE_ENABLE)) {
3756 msleep(100);
3757 host_diag = readl(&instance->reg_set->fusion_host_diag);
3758 if (retry++ == 100) {
3759 dev_warn(&instance->pdev->dev,
3760 "Host diag unlock failed from %s %d\n",
3761 __func__, __LINE__);
3762 break;
3763 }
3764 }
3765 if (!(host_diag & HOST_DIAG_WRITE_ENABLE))
3766 return -1;
3767
3768 /* Send chip reset command */
3769 writel(host_diag | HOST_DIAG_RESET_ADAPTER,
3770 &instance->reg_set->fusion_host_diag);
3771 msleep(3000);
3772
3773 /* Make sure reset adapter bit is cleared */
3774 host_diag = readl(&instance->reg_set->fusion_host_diag);
3775 retry = 0;
3776 while (host_diag & HOST_DIAG_RESET_ADAPTER) {
3777 msleep(100);
3778 host_diag = readl(&instance->reg_set->fusion_host_diag);
3779 if (retry++ == 1000) {
3780 dev_warn(&instance->pdev->dev,
3781 "Diag reset adapter never cleared %s %d\n",
3782 __func__, __LINE__);
3783 break;
3784 }
3785 }
3786 if (host_diag & HOST_DIAG_RESET_ADAPTER)
3787 return -1;
3788
3789 abs_state = instance->instancet->read_fw_status_reg(instance->reg_set)
3790 & MFI_STATE_MASK;
3791 retry = 0;
3792
3793 while ((abs_state <= MFI_STATE_FW_INIT) && (retry++ < 1000)) {
3794 msleep(100);
3795 abs_state = instance->instancet->
3796 read_fw_status_reg(instance->reg_set) & MFI_STATE_MASK;
3797 }
3798 if (abs_state <= MFI_STATE_FW_INIT) {
3799 dev_warn(&instance->pdev->dev,
3800 "fw state < MFI_STATE_FW_INIT, state = 0x%x %s %d\n",
3801 abs_state, __func__, __LINE__);
3802 return -1;
3803 }
3804
9c915a8c
AR		 3805 return 0;
3806}
3807
3808/**
3809 * megasas_check_reset_fusion - For controller reset check
3810 * @regs: MFI register set
3811 */
3812static int
3813megasas_check_reset_fusion(struct megasas_instance *instance,
3814 struct megasas_register_set __iomem *regs)
3815{
3816 return 0;
3817}
3818
3819/* This function waits for outstanding commands on fusion to complete */
229fe47c 3820int megasas_wait_for_outstanding_fusion(struct megasas_instance *instance,
6d40afbc 3821 int reason, int *convert)
9c915a8c 3822{
229fe47c 3823 int i, outstanding, retval = 0, hb_seconds_missed = 0;
c007b8b2 3824 u32 fw_state;
9c915a8c 3825
c007b8b2 3826 for (i = 0; i < resetwaittime; i++) {
9c915a8c
AR		 3827 /* Check if firmware is in fault state */
3828 fw_state = instance->instancet->read_fw_status_reg(
3829 instance->reg_set) & MFI_STATE_MASK;
3830 if (fw_state == MFI_STATE_FAULT) {
1be18254 3831 dev_warn(&instance->pdev->dev, "Found FW in FAULT state,"
229fe47c
AR		 3832 " will reset adapter scsi%d.\n",
3833 instance->host->host_no);
64d0b8e4 3834 megasas_complete_cmd_dpc_fusion((unsigned long)instance);
def0eab3
S		 3835 if (instance->requestorId && reason) {
3836 dev_warn(&instance->pdev->dev, "SR-IOV Found FW in FAULT"
3837 " state while polling during"
3838 " I/O timeout handling for %d\n",
3839 instance->host->host_no);
3840 *convert = 1;
3841 }
3842
229fe47c
AR		 3843 retval = 1;
3844 goto out;
3845 }
6d40afbc
SS		 3846
3847 if (reason == MFI_IO_TIMEOUT_OCR) {
3848 dev_info(&instance->pdev->dev,
3849 "MFI IO is timed out, initiating OCR\n");
64d0b8e4 3850 megasas_complete_cmd_dpc_fusion((unsigned long)instance);
6d40afbc
SS		 3851 retval = 1;
3852 goto out;
3853 }
3854
229fe47c 3855 /* If SR-IOV VF mode & heartbeat timeout, don't wait */
6d40afbc 3856 if (instance->requestorId && !reason) {
9c915a8c
AR		 3857 retval = 1;
3858 goto out;
3859 }
3860
229fe47c 3861 /* If SR-IOV VF mode & I/O timeout, check for HB timeout */
def0eab3 3862 if (instance->requestorId && (reason == SCSIIO_TIMEOUT_OCR)) {
229fe47c
AR		 3863 if (instance->hb_host_mem->HB.fwCounter !=
3864 instance->hb_host_mem->HB.driverCounter) {
3865 instance->hb_host_mem->HB.driverCounter =
3866 instance->hb_host_mem->HB.fwCounter;
3867 hb_seconds_missed = 0;
3868 } else {
3869 hb_seconds_missed++;
3870 if (hb_seconds_missed ==
3871 (MEGASAS_SRIOV_HEARTBEAT_INTERVAL_VF/HZ)) {
1be18254 3872 dev_warn(&instance->pdev->dev, "SR-IOV:"
229fe47c
AR		 3873 " Heartbeat never completed "
3874 " while polling during I/O "
3875 " timeout handling for "
3876 "scsi%d.\n",
3877 instance->host->host_no);
3878 *convert = 1;
3879 retval = 1;
3880 goto out;
3881 }
3882 }
3883 }
3884
14298cf3 3885 megasas_complete_cmd_dpc_fusion((unsigned long)instance);
9c915a8c
AR		 3886 outstanding = atomic_read(&instance->fw_outstanding);
3887 if (!outstanding)
3888 goto out;
3889
3890 if (!(i % MEGASAS_RESET_NOTICE_INTERVAL)) {
1be18254 3891 dev_notice(&instance->pdev->dev, "[%2d]waiting for %d "
229fe47c
AR		 3892 "commands to complete for scsi%d\n", i,
3893 outstanding, instance->host->host_no);
9c915a8c
AR		 3894 }
3895 msleep(1000);
3896 }
3897
3898 if (atomic_read(&instance->fw_outstanding)) {
1be18254 3899 dev_err(&instance->pdev->dev, "pending commands remain after waiting, "
229fe47c
AR		 3900 "will reset adapter scsi%d.\n",
3901 instance->host->host_no);
18e1c7f6 3902 *convert = 1;
9c915a8c
AR		 3903 retval = 1;
3904 }
3905out:
3906 return retval;
3907}
3908
3909void megasas_reset_reply_desc(struct megasas_instance *instance)
3910{
179ac142 3911 int i, j, count;
9c915a8c
AR		 3912 struct fusion_context *fusion;
3913 union MPI2_REPLY_DESCRIPTORS_UNION *reply_desc;
3914
3915 fusion = instance->ctrl_context;
c8e858fe 3916 count = instance->msix_vectors > 0 ? instance->msix_vectors : 1;
179ac142 3917 for (i = 0 ; i < count ; i++) {
c8e858fe 3918 fusion->last_reply_idx[i] = 0;
179ac142
SS		 3919 reply_desc = fusion->reply_frames_desc[i];
3920 for (j = 0 ; j < fusion->reply_q_depth; j++, reply_desc++)
3921 reply_desc->Words = cpu_to_le64(ULLONG_MAX);
3922 }
9c915a8c
AR		 3923}
3924
9b828182
SS		 3925/*
3926 * megasas_refire_mgmt_cmd : Re-fire management commands
3927 * @instance: Controller's soft instance
3928*/
3929void megasas_refire_mgmt_cmd(struct megasas_instance *instance)
3930{
3931 int j;
3932 struct megasas_cmd_fusion *cmd_fusion;
3933 struct fusion_context *fusion;
3934 struct megasas_cmd *cmd_mfi;
3935 union MEGASAS_REQUEST_DESCRIPTOR_UNION *req_desc;
3936 u16 smid;
6d40afbc 3937 bool refire_cmd = 0;
9b828182
SS		 3938
3939 fusion = instance->ctrl_context;
3940
3941 /* Re-fire management commands.
3942 * Do not traverse complet MPT frame pool. Start from max_scsi_cmds.
3943 */
3944 for (j = instance->max_scsi_cmds ; j < instance->max_fw_cmds; j++) {
3945 cmd_fusion = fusion->cmd_list[j];
3946 cmd_mfi = instance->cmd_list[cmd_fusion->sync_cmd_idx];
3947 smid = le16_to_cpu(cmd_mfi->context.smid);
3948
3949 if (!smid)
3950 continue;
690e9c38
S		 3951
3952 /* Do not refire shutdown command */
3953 if (le32_to_cpu(cmd_mfi->frame->dcmd.opcode) ==
3954 MR_DCMD_CTRL_SHUTDOWN) {
3955 cmd_mfi->frame->dcmd.cmd_status = MFI_STAT_OK;
3956 megasas_complete_cmd(instance, cmd_mfi, DID_OK);
3957 continue;
3958 }
3959
9b828182
SS		 3960 req_desc = megasas_get_request_descriptor
3961 (instance, smid - 1);
6d40afbc 3962 refire_cmd = req_desc && ((cmd_mfi->frame->dcmd.opcode !=
3761cb4c 3963 cpu_to_le32(MR_DCMD_LD_MAP_GET_INFO)) &&
3964 (cmd_mfi->frame->dcmd.opcode !=
6d40afbc
SS		 3965 cpu_to_le32(MR_DCMD_SYSTEM_PD_MAP_GET_INFO)))
3966 && !(cmd_mfi->flags & DRV_DCMD_SKIP_REFIRE);
3967 if (refire_cmd)
45b8a35e 3968 megasas_fire_cmd_fusion(instance, req_desc);
01d7f03b 3969 else
9b828182
SS		 3970 megasas_return_cmd(instance, cmd_mfi);
3971 }
9c915a8c
AR		 3972}
3973
18365b13
SS		 3974/*
3975 * megasas_track_scsiio : Track SCSI IOs outstanding to a SCSI device
3976 * @instance: per adapter struct
3977 * @channel: the channel assigned by the OS
3978 * @id: the id assigned by the OS
3979 *
3980 * Returns SUCCESS if no IOs pending to SCSI device, else return FAILED
3981 */
3982
3983static int megasas_track_scsiio(struct megasas_instance *instance,
3984 int id, int channel)
3985{
3986 int i, found = 0;
3987 struct megasas_cmd_fusion *cmd_fusion;
3988 struct fusion_context *fusion;
3989 fusion = instance->ctrl_context;
3990
3991 for (i = 0 ; i < instance->max_scsi_cmds; i++) {
3992 cmd_fusion = fusion->cmd_list[i];
3993 if (cmd_fusion->scmd &&
3994 (cmd_fusion->scmd->device->id == id &&
3995 cmd_fusion->scmd->device->channel == channel)) {
3996 dev_info(&instance->pdev->dev,
3997 "SCSI commands pending to target"
3998 "channel %d id %d \tSMID: 0x%x\n",
3999 channel, id, cmd_fusion->index);
4000 scsi_print_command(cmd_fusion->scmd);
4001 found = 1;
4002 break;
4003 }
4004 }
4005
4006 return found ? FAILED : SUCCESS;
4007}
4008
4009/**
4010 * megasas_tm_response_code - translation of device response code
4011 * @ioc: per adapter object
4012 * @mpi_reply: MPI reply returned by firmware
4013 *
4014 * Return nothing.
4015 */
4016static void
4017megasas_tm_response_code(struct megasas_instance *instance,
4018 struct MPI2_SCSI_TASK_MANAGE_REPLY *mpi_reply)
4019{
4020 char *desc;
4021
4022 switch (mpi_reply->ResponseCode) {
4023 case MPI2_SCSITASKMGMT_RSP_TM_COMPLETE:
4024 desc = "task management request completed";
4025 break;
4026 case MPI2_SCSITASKMGMT_RSP_INVALID_FRAME:
4027 desc = "invalid frame";
4028 break;
4029 case MPI2_SCSITASKMGMT_RSP_TM_NOT_SUPPORTED:
4030 desc = "task management request not supported";
4031 break;
4032 case MPI2_SCSITASKMGMT_RSP_TM_FAILED:
4033 desc = "task management request failed";
4034 break;
4035 case MPI2_SCSITASKMGMT_RSP_TM_SUCCEEDED:
4036 desc = "task management request succeeded";
4037 break;
4038 case MPI2_SCSITASKMGMT_RSP_TM_INVALID_LUN:
4039 desc = "invalid lun";
4040 break;
4041 case 0xA:
4042 desc = "overlapped tag attempted";
4043 break;
4044 case MPI2_SCSITASKMGMT_RSP_IO_QUEUED_ON_IOC:
4045 desc = "task queued, however not sent to target";
4046 break;
4047 default:
4048 desc = "unknown";
4049 break;
4050 }
4051 dev_dbg(&instance->pdev->dev, "response_code(%01x): %s\n",
4052 mpi_reply->ResponseCode, desc);
4053 dev_dbg(&instance->pdev->dev,
4054 "TerminationCount/DevHandle/Function/TaskType/IOCStat/IOCLoginfo"
4055 " 0x%x/0x%x/0x%x/0x%x/0x%x/0x%x\n",
4056 mpi_reply->TerminationCount, mpi_reply->DevHandle,
4057 mpi_reply->Function, mpi_reply->TaskType,
4058 mpi_reply->IOCStatus, mpi_reply->IOCLogInfo);
4059}
4060
4061/**
4062 * megasas_issue_tm - main routine for sending tm requests
4063 * @instance: per adapter struct
4064 * @device_handle: device handle
4065 * @channel: the channel assigned by the OS
4066 * @id: the id assigned by the OS
4067 * @type: MPI2_SCSITASKMGMT_TASKTYPE__XXX (defined in megaraid_sas_fusion.c)
4068 * @smid_task: smid assigned to the task
4069 * @m_type: TM_MUTEX_ON or TM_MUTEX_OFF
4070 * Context: user
4071 *
4072 * MegaRaid use MPT interface for Task Magement request.
4073 * A generic API for sending task management requests to firmware.
4074 *
4075 * Return SUCCESS or FAILED.
4076 */
4077static int
4078megasas_issue_tm(struct megasas_instance *instance, u16 device_handle,
4079 uint channel, uint id, u16 smid_task, u8 type)
4080{
4081 struct MR_TASK_MANAGE_REQUEST *mr_request;
4082 struct MPI2_SCSI_TASK_MANAGE_REQUEST *mpi_request;
4083 unsigned long timeleft;
4084 struct megasas_cmd_fusion *cmd_fusion;
4085 struct megasas_cmd *cmd_mfi;
4086 union MEGASAS_REQUEST_DESCRIPTOR_UNION *req_desc;
28661c88 4087 struct fusion_context *fusion = NULL;
18365b13
SS		 4088 struct megasas_cmd_fusion *scsi_lookup;
4089 int rc;
4090 struct MPI2_SCSI_TASK_MANAGE_REPLY *mpi_reply;
4091
4092 fusion = instance->ctrl_context;
4093
4094 cmd_mfi = megasas_get_cmd(instance);
4095
4096 if (!cmd_mfi) {
4097 dev_err(&instance->pdev->dev, "Failed from %s %d\n",
4098 __func__, __LINE__);
4099 return -ENOMEM;
4100 }
4101
4102 cmd_fusion = megasas_get_cmd_fusion(instance,
4103 instance->max_scsi_cmds + cmd_mfi->index);
4104
4105 /* Save the smid. To be used for returning the cmd */
4106 cmd_mfi->context.smid = cmd_fusion->index;
4107
4108 req_desc = megasas_get_request_descriptor(instance,
4109 (cmd_fusion->index - 1));
18365b13
SS		 4110
4111 cmd_fusion->request_desc = req_desc;
4112 req_desc->Words = 0;
4113
18365b13
SS		 4114 mr_request = (struct MR_TASK_MANAGE_REQUEST *) cmd_fusion->io_request;
4115 memset(mr_request, 0, sizeof(struct MR_TASK_MANAGE_REQUEST));
4116 mpi_request = (struct MPI2_SCSI_TASK_MANAGE_REQUEST *) &mr_request->TmRequest;
4117 mpi_request->Function = MPI2_FUNCTION_SCSI_TASK_MGMT;
4118 mpi_request->DevHandle = cpu_to_le16(device_handle);
4119 mpi_request->TaskType = type;
4120 mpi_request->TaskMID = cpu_to_le16(smid_task);
4121 mpi_request->LUN[1] = 0;
4122
4123
4124 req_desc = cmd_fusion->request_desc;
4125 req_desc->HighPriority.SMID = cpu_to_le16(cmd_fusion->index);
4126 req_desc->HighPriority.RequestFlags =
4127 (MPI2_REQ_DESCRIPT_FLAGS_HIGH_PRIORITY <<
4128 MEGASAS_REQ_DESCRIPT_FLAGS_TYPE_SHIFT);
4129 req_desc->HighPriority.MSIxIndex = 0;
4130 req_desc->HighPriority.LMID = 0;
4131 req_desc->HighPriority.Reserved1 = 0;
4132
4133 if (channel < MEGASAS_MAX_PD_CHANNELS)
4134 mr_request->tmReqFlags.isTMForPD = 1;
4135 else
4136 mr_request->tmReqFlags.isTMForLD = 1;
4137
4138 init_completion(&cmd_fusion->done);
45b8a35e 4139 megasas_fire_cmd_fusion(instance, req_desc);
18365b13
SS		 4140
4141 timeleft = wait_for_completion_timeout(&cmd_fusion->done, 50 * HZ);
4142
4143 if (!timeleft) {
4144 dev_err(&instance->pdev->dev,
4145 "task mgmt type 0x%x timed out\n", type);
4146 cmd_mfi->flags |= DRV_DCMD_SKIP_REFIRE;
4147 mutex_unlock(&instance->reset_mutex);
4148 rc = megasas_reset_fusion(instance->host, MFI_IO_TIMEOUT_OCR);
4149 mutex_lock(&instance->reset_mutex);
4150 return rc;
4151 }
4152
4153 mpi_reply = (struct MPI2_SCSI_TASK_MANAGE_REPLY *) &mr_request->TMReply;
4154 megasas_tm_response_code(instance, mpi_reply);
4155
4156 megasas_return_cmd(instance, cmd_mfi);
4157 rc = SUCCESS;
4158 switch (type) {
4159 case MPI2_SCSITASKMGMT_TASKTYPE_ABORT_TASK:
28661c88
S		 4160 scsi_lookup = fusion->cmd_list[smid_task - 1];
4161
18365b13
SS		 4162 if (scsi_lookup->scmd == NULL)
4163 break;
4164 else {
4165 instance->instancet->disable_intr(instance);
29206da1 4166 megasas_sync_irqs((unsigned long)instance);
18365b13
SS		 4167 instance->instancet->enable_intr(instance);
4168 if (scsi_lookup->scmd == NULL)
4169 break;
4170 }
4171 rc = FAILED;
4172 break;
4173
4174 case MPI2_SCSITASKMGMT_TASKTYPE_TARGET_RESET:
4175 if ((channel == 0xFFFFFFFF) && (id == 0xFFFFFFFF))
4176 break;
4177 instance->instancet->disable_intr(instance);
bdb5c55f 4178 megasas_sync_irqs((unsigned long)instance);
18365b13
SS		 4179 rc = megasas_track_scsiio(instance, id, channel);
4180 instance->instancet->enable_intr(instance);
4181
4182 break;
4183 case MPI2_SCSITASKMGMT_TASKTYPE_ABRT_TASK_SET:
4184 case MPI2_SCSITASKMGMT_TASKTYPE_QUERY_TASK:
4185 break;
4186 default:
4187 rc = FAILED;
4188 break;
4189 }
4190
4191 return rc;
4192
4193}
4194
4195/*
4196 * megasas_fusion_smid_lookup : Look for fusion command correpspodning to SCSI
4197 * @instance: per adapter struct
4198 *
4199 * Return Non Zero index, if SMID found in outstanding commands
4200 */
4201static u16 megasas_fusion_smid_lookup(struct scsi_cmnd *scmd)
4202{
4203 int i, ret = 0;
4204 struct megasas_instance *instance;
4205 struct megasas_cmd_fusion *cmd_fusion;
4206 struct fusion_context *fusion;
4207
4208 instance = (struct megasas_instance *)scmd->device->host->hostdata;
4209
4210 fusion = instance->ctrl_context;
4211
4212 for (i = 0; i < instance->max_scsi_cmds; i++) {
4213 cmd_fusion = fusion->cmd_list[i];
4214 if (cmd_fusion->scmd && (cmd_fusion->scmd == scmd)) {
4215 scmd_printk(KERN_NOTICE, scmd, "Abort request is for"
4216 " SMID: %d\n", cmd_fusion->index);
4217 ret = cmd_fusion->index;
4218 break;
4219 }
4220 }
4221
4222 return ret;
4223}
4224
4225/*
4226* megasas_get_tm_devhandle - Get devhandle for TM request
4227* @sdev- OS provided scsi device
4228*
4229* Returns- devhandle/targetID of SCSI device
4230*/
4231static u16 megasas_get_tm_devhandle(struct scsi_device *sdev)
4232{
4233 u16 pd_index = 0;
4234 u32 device_id;
4235 struct megasas_instance *instance;
4236 struct fusion_context *fusion;
4237 struct MR_PD_CFG_SEQ_NUM_SYNC *pd_sync;
4238 u16 devhandle = (u16)ULONG_MAX;
4239
4240 instance = (struct megasas_instance *)sdev->host->hostdata;
4241 fusion = instance->ctrl_context;
4242
3cabd162 4243 if (!MEGASAS_IS_LOGICAL(sdev)) {
18365b13 4244 if (instance->use_seqnum_jbod_fp) {
3cabd162
S		 4245 pd_index = (sdev->channel * MEGASAS_MAX_DEV_PER_CHANNEL)
4246 + sdev->id;
4247 pd_sync = (void *)fusion->pd_seq_sync
4248 [(instance->pd_seq_map_id - 1) & 1];
4249 devhandle = pd_sync->seq[pd_index].devHandle;
18365b13
SS		 4250 } else
4251 sdev_printk(KERN_ERR, sdev, "Firmware expose tmCapable"
4252 " without JBOD MAP support from %s %d\n", __func__, __LINE__);
4253 } else {
4254 device_id = ((sdev->channel % 2) * MEGASAS_MAX_DEV_PER_CHANNEL)
4255 + sdev->id;
4256 devhandle = device_id;
4257 }
4258
4259 return devhandle;
4260}
4261
4262/*
4263 * megasas_task_abort_fusion : SCSI task abort function for fusion adapters
4264 * @scmd : pointer to scsi command object
4265 *
4266 * Return SUCCESS, if command aborted else FAILED
4267 */
4268
4269int megasas_task_abort_fusion(struct scsi_cmnd *scmd)
4270{
4271 struct megasas_instance *instance;
4272 u16 smid, devhandle;
4273 struct fusion_context *fusion;
4274 int ret;
4275 struct MR_PRIV_DEVICE *mr_device_priv_data;
4276 mr_device_priv_data = scmd->device->hostdata;
4277
4278
4279 instance = (struct megasas_instance *)scmd->device->host->hostdata;
4280 fusion = instance->ctrl_context;
4281
def0eab3
S		 4282 scmd_printk(KERN_INFO, scmd, "task abort called for scmd(%p)\n", scmd);
4283 scsi_print_command(scmd);
4284
8a01a41d 4285 if (atomic_read(&instance->adprecovery) != MEGASAS_HBA_OPERATIONAL) {
18365b13
SS		 4286 dev_err(&instance->pdev->dev, "Controller is not OPERATIONAL,"
4287 "SCSI host:%d\n", instance->host->host_no);
4288 ret = FAILED;
4289 return ret;
4290 }
4291
4292 if (!mr_device_priv_data) {
4293 sdev_printk(KERN_INFO, scmd->device, "device been deleted! "
4294 "scmd(%p)\n", scmd);
4295 scmd->result = DID_NO_CONNECT << 16;
4296 ret = SUCCESS;
4297 goto out;
4298 }
4299
4300
4301 if (!mr_device_priv_data->is_tm_capable) {
4302 ret = FAILED;
4303 goto out;
4304 }
4305
4306 mutex_lock(&instance->reset_mutex);
4307
4308 smid = megasas_fusion_smid_lookup(scmd);
4309
4310 if (!smid) {
4311 ret = SUCCESS;
4312 scmd_printk(KERN_NOTICE, scmd, "Command for which abort is"
4313 " issued is not found in oustanding commands\n");
4314 mutex_unlock(&instance->reset_mutex);
4315 goto out;
4316 }
4317
4318 devhandle = megasas_get_tm_devhandle(scmd->device);
4319
4320 if (devhandle == (u16)ULONG_MAX) {
4321 ret = SUCCESS;
4322 sdev_printk(KERN_INFO, scmd->device,
4323 "task abort issued for invalid devhandle\n");
4324 mutex_unlock(&instance->reset_mutex);
4325 goto out;
4326 }
4327 sdev_printk(KERN_INFO, scmd->device,
4328 "attempting task abort! scmd(%p) tm_dev_handle 0x%x\n",
4329 scmd, devhandle);
4330
4331 mr_device_priv_data->tm_busy = 1;
4332 ret = megasas_issue_tm(instance, devhandle,
4333 scmd->device->channel, scmd->device->id, smid,
4334 MPI2_SCSITASKMGMT_TASKTYPE_ABORT_TASK);
4335 mr_device_priv_data->tm_busy = 0;
4336
4337 mutex_unlock(&instance->reset_mutex);
4338out:
4339 sdev_printk(KERN_INFO, scmd->device, "task abort: %s scmd(%p)\n",
4340 ((ret == SUCCESS) ? "SUCCESS" : "FAILED"), scmd);
4341
4342 return ret;
4343}
4344
4345/*
4346 * megasas_reset_target_fusion : target reset function for fusion adapters
4347 * scmd: SCSI command pointer
4348 *
4349 * Returns SUCCESS if all commands associated with target aborted else FAILED
4350 */
4351
4352int megasas_reset_target_fusion(struct scsi_cmnd *scmd)
4353{
4354
4355 struct megasas_instance *instance;
4356 int ret = FAILED;
4357 u16 devhandle;
4358 struct fusion_context *fusion;
4359 struct MR_PRIV_DEVICE *mr_device_priv_data;
4360 mr_device_priv_data = scmd->device->hostdata;
4361
4362 instance = (struct megasas_instance *)scmd->device->host->hostdata;
4363 fusion = instance->ctrl_context;
4364
def0eab3
S		 4365 sdev_printk(KERN_INFO, scmd->device,
4366 "target reset called for scmd(%p)\n", scmd);
4367
8a01a41d 4368 if (atomic_read(&instance->adprecovery) != MEGASAS_HBA_OPERATIONAL) {
18365b13
SS		 4369 dev_err(&instance->pdev->dev, "Controller is not OPERATIONAL,"
4370 "SCSI host:%d\n", instance->host->host_no);
4371 ret = FAILED;
4372 return ret;
4373 }
4374
4375 if (!mr_device_priv_data) {
4376 sdev_printk(KERN_INFO, scmd->device, "device been deleted! "
4377 "scmd(%p)\n", scmd);
4378 scmd->result = DID_NO_CONNECT << 16;
4379 ret = SUCCESS;
4380 goto out;
4381 }
4382
4383
4384 if (!mr_device_priv_data->is_tm_capable) {
4385 ret = FAILED;
4386 goto out;
4387 }
4388
4389 mutex_lock(&instance->reset_mutex);
4390 devhandle = megasas_get_tm_devhandle(scmd->device);
4391
4392 if (devhandle == (u16)ULONG_MAX) {
4393 ret = SUCCESS;
4394 sdev_printk(KERN_INFO, scmd->device,
4395 "target reset issued for invalid devhandle\n");
4396 mutex_unlock(&instance->reset_mutex);
4397 goto out;
4398 }
4399
4400 sdev_printk(KERN_INFO, scmd->device,
4401 "attempting target reset! scmd(%p) tm_dev_handle 0x%x\n",
4402 scmd, devhandle);
4403 mr_device_priv_data->tm_busy = 1;
4404 ret = megasas_issue_tm(instance, devhandle,
4405 scmd->device->channel, scmd->device->id, 0,
4406 MPI2_SCSITASKMGMT_TASKTYPE_TARGET_RESET);
4407 mr_device_priv_data->tm_busy = 0;
4408 mutex_unlock(&instance->reset_mutex);
4409out:
4410 scmd_printk(KERN_NOTICE, scmd, "megasas: target reset %s!!\n",
4411 (ret == SUCCESS) ? "SUCCESS" : "FAILED");
4412
4413 return ret;
4414}
4415
8f67c8c5
SS		 4416/*SRIOV get other instance in cluster if any*/
4417struct megasas_instance *megasas_get_peer_instance(struct megasas_instance *instance)
4418{
4419 int i;
4420
4421 for (i = 0; i < MAX_MGMT_ADAPTERS; i++) {
4422 if (megasas_mgmt_info.instance[i] &&
4423 (megasas_mgmt_info.instance[i] != instance) &&
4424 megasas_mgmt_info.instance[i]->requestorId &&
4425 megasas_mgmt_info.instance[i]->peerIsPresent &&
4426 (memcmp((megasas_mgmt_info.instance[i]->clusterId),
4427 instance->clusterId, MEGASAS_CLUSTER_ID_SIZE) == 0))
4428 return megasas_mgmt_info.instance[i];
4429 }
4430 return NULL;
4431}
4432
229fe47c
AR		 4433/* Check for a second path that is currently UP */
4434int megasas_check_mpio_paths(struct megasas_instance *instance,
4435 struct scsi_cmnd *scmd)
4436{
8f67c8c5 4437 struct megasas_instance *peer_instance = NULL;
f55cf47d 4438 int retval = (DID_REQUEUE << 16);
8f67c8c5
SS		 4439
4440 if (instance->peerIsPresent) {
4441 peer_instance = megasas_get_peer_instance(instance);
4442 if ((peer_instance) &&
4443 (atomic_read(&peer_instance->adprecovery) ==
4444 MEGASAS_HBA_OPERATIONAL))
4445 retval = (DID_NO_CONNECT << 16);
229fe47c 4446 }
229fe47c
AR		 4447 return retval;
4448}
4449
9c915a8c 4450/* Core fusion reset function */
18365b13 4451int megasas_reset_fusion(struct Scsi_Host *shost, int reason)
9c915a8c 4452{
fdd84e25 4453 int retval = SUCCESS, i, j, convert = 0;
9c915a8c 4454 struct megasas_instance *instance;
8bf7c65d 4455 struct megasas_cmd_fusion *cmd_fusion, *r1_cmd;
9c915a8c 4456 struct fusion_context *fusion;
79b82c2c 4457 u32 abs_state, status_reg, reset_adapter;
fc62b3fc 4458 u32 io_timeout_in_crash_mode = 0;
4026e9aa 4459 struct scsi_cmnd *scmd_local = NULL;
18365b13 4460 struct scsi_device *sdev;
9c915a8c
AR		 4461
4462 instance = (struct megasas_instance *)shost->hostdata;
4463 fusion = instance->ctrl_context;
4464
229fe47c
AR		 4465 mutex_lock(&instance->reset_mutex);
4466
8a01a41d 4467 if (atomic_read(&instance->adprecovery) == MEGASAS_HW_CRITICAL_ERROR) {
1be18254 4468 dev_warn(&instance->pdev->dev, "Hardware critical error, "
229fe47c
AR		 4469 "returning FAILED for scsi%d.\n",
4470 instance->host->host_no);
a2fbcbc3 4471 mutex_unlock(&instance->reset_mutex);
d4a759a9 4472 return FAILED;
9c915a8c 4473 }
fc62b3fc
SS		 4474 status_reg = instance->instancet->read_fw_status_reg(instance->reg_set);
4475 abs_state = status_reg & MFI_STATE_MASK;
4476
4477 /* IO timeout detected, forcibly put FW in FAULT state */
4478 if (abs_state != MFI_STATE_FAULT && instance->crash_dump_buf &&
18365b13
SS		 4479 instance->crash_dump_app_support && reason) {
4480 dev_info(&instance->pdev->dev, "IO/DCMD timeout is detected, "
fc62b3fc 4481 "forcibly FAULT Firmware\n");
8a01a41d 4482 atomic_set(&instance->adprecovery, MEGASAS_ADPRESET_SM_INFAULT);
fc62b3fc
SS		 4483 status_reg = readl(&instance->reg_set->doorbell);
4484 writel(status_reg | MFI_STATE_FORCE_OCR,
4485 &instance->reg_set->doorbell);
4486 readl(&instance->reg_set->doorbell);
4487 mutex_unlock(&instance->reset_mutex);
4488 do {
4489 ssleep(3);
4490 io_timeout_in_crash_mode++;
4491 dev_dbg(&instance->pdev->dev, "waiting for [%d] "
4492 "seconds for crash dump collection and OCR "
4493 "to be done\n", (io_timeout_in_crash_mode * 3));
8a01a41d 4494 } while ((atomic_read(&instance->adprecovery) != MEGASAS_HBA_OPERATIONAL) &&
fc62b3fc
SS		 4495 (io_timeout_in_crash_mode < 80));
4496
8a01a41d 4497 if (atomic_read(&instance->adprecovery) == MEGASAS_HBA_OPERATIONAL) {
fc62b3fc
SS		 4498 dev_info(&instance->pdev->dev, "OCR done for IO "
4499 "timeout case\n");
4500 retval = SUCCESS;
4501 } else {
4502 dev_info(&instance->pdev->dev, "Controller is not "
4503 "operational after 240 seconds wait for IO "
4504 "timeout case in FW crash dump mode\n do "
4505 "OCR/kill adapter\n");
4506 retval = megasas_reset_fusion(shost, 0);
4507 }
4508 return retval;
4509 }
9c915a8c 4510
229fe47c
AR		 4511 if (instance->requestorId && !instance->skip_heartbeat_timer_del)
4512 del_timer_sync(&instance->sriov_heartbeat_timer);
7e70e733 4513 set_bit(MEGASAS_FUSION_IN_RESET, &instance->reset_flags);
8a01a41d 4514 atomic_set(&instance->adprecovery, MEGASAS_ADPRESET_SM_POLLING);
d46a3ad6 4515 instance->instancet->disable_intr(instance);
29206da1 4516 megasas_sync_irqs((unsigned long)instance);
7e70e733 4517
9c915a8c 4518 /* First try waiting for commands to complete */
18365b13 4519 if (megasas_wait_for_outstanding_fusion(instance, reason,
229fe47c 4520 &convert)) {
8a01a41d 4521 atomic_set(&instance->adprecovery, MEGASAS_ADPRESET_SM_INFAULT);
1be18254 4522 dev_warn(&instance->pdev->dev, "resetting fusion "
229fe47c
AR		 4523 "adapter scsi%d.\n", instance->host->host_no);
4524 if (convert)
18365b13 4525 reason = 0;
229fe47c 4526
def0eab3
S		 4527 if (megasas_dbg_lvl & OCR_LOGS)
4528 dev_info(&instance->pdev->dev, "\nPending SCSI commands:\n");
4529
9c915a8c 4530 /* Now return commands back to the OS */
4026e9aa 4531 for (i = 0 ; i < instance->max_scsi_cmds; i++) {
9c915a8c 4532 cmd_fusion = fusion->cmd_list[i];
69c337c0 4533 /*check for extra commands issued by driver*/
f369a315 4534 if (instance->adapter_type == VENTURA_SERIES) {
8bf7c65d
S		 4535 r1_cmd = fusion->cmd_list[i + instance->max_fw_cmds];
4536 megasas_return_cmd_fusion(instance, r1_cmd);
69c337c0 4537 }
4026e9aa 4538 scmd_local = cmd_fusion->scmd;
9c915a8c 4539 if (cmd_fusion->scmd) {
def0eab3
S		 4540 if (megasas_dbg_lvl & OCR_LOGS) {
4541 sdev_printk(KERN_INFO,
4542 cmd_fusion->scmd->device, "SMID: 0x%x\n",
4543 cmd_fusion->index);
4544 scsi_print_command(cmd_fusion->scmd);
4545 }
4546
4026e9aa 4547 scmd_local->result =
229fe47c 4548 megasas_check_mpio_paths(instance,
4026e9aa 4549 scmd_local);
b71b49c2
SC		 4550 if (instance->ldio_threshold &&
4551 megasas_cmd_type(scmd_local) == READ_WRITE_LDIO)
308ec459 4552 atomic_dec(&instance->ldio_outstanding);
9c915a8c 4553 megasas_return_cmd_fusion(instance, cmd_fusion);
4026e9aa
SS		 4554 scsi_dma_unmap(scmd_local);
4555 scmd_local->scsi_done(scmd_local);
9c915a8c
AR		 4556 }
4557 }
4558
69c337c0
SC		 4559 atomic_set(&instance->fw_outstanding, 0);
4560
7e70e733
AR		 4561 status_reg = instance->instancet->read_fw_status_reg(
4562 instance->reg_set);
4563 abs_state = status_reg & MFI_STATE_MASK;
4564 reset_adapter = status_reg & MFI_RESET_ADAPTER;
4565 if (instance->disableOnlineCtrlReset ||
4566 (abs_state == MFI_STATE_FAULT && !reset_adapter)) {
9c915a8c 4567 /* Reset not supported, kill adapter */
1be18254 4568 dev_warn(&instance->pdev->dev, "Reset not supported"
229fe47c
AR		 4569 ", killing adapter scsi%d.\n",
4570 instance->host->host_no);
9c915a8c 4571 megaraid_sas_kill_hba(instance);
229fe47c 4572 instance->skip_heartbeat_timer_del = 1;
9c915a8c
AR		 4573 retval = FAILED;
4574 goto out;
4575 }
4576
229fe47c 4577 /* Let SR-IOV VF & PF sync up if there was a HB failure */
18365b13 4578 if (instance->requestorId && !reason) {
229fe47c 4579 msleep(MEGASAS_OCR_SETTLE_TIME_VF);
3885c26b 4580 goto transition_to_ready;
229fe47c
AR		 4581 }
4582
9c915a8c
AR		 4583 /* Now try to reset the chip */
4584 for (i = 0; i < MEGASAS_FUSION_MAX_RESET_TRIES; i++) {
9c915a8c 4585
79b82c2c 4586 if (instance->instancet->adp_reset
4587 (instance, instance->reg_set))
9c915a8c 4588 continue;
3885c26b 4589transition_to_ready:
9c915a8c 4590 /* Wait for FW to become ready */
058a8fac 4591 if (megasas_transition_to_ready(instance, 1)) {
3885c26b
SS		 4592 dev_warn(&instance->pdev->dev,
4593 "Failed to transition controller to ready for "
4594 "scsi%d.\n", instance->host->host_no);
4595 if (instance->requestorId && !reason)
4596 goto fail_kill_adapter;
4597 else
4598 continue;
9c915a8c 4599 }
9c915a8c 4600 megasas_reset_reply_desc(instance);
308ec459
SS		 4601 megasas_fusion_update_can_queue(instance, OCR_CONTEXT);
4602
9c915a8c 4603 if (megasas_ioc_init_fusion(instance)) {
3885c26b
SS		 4604 if (instance->requestorId && !reason)
4605 goto fail_kill_adapter;
4606 else
4607 continue;
9c915a8c
AR		 4608 }
4609
9b828182 4610 megasas_refire_mgmt_cmd(instance);
9c915a8c 4611
d009b576
SS		 4612 if (megasas_get_ctrl_info(instance)) {
4613 dev_info(&instance->pdev->dev,
4614 "Failed from %s %d\n",
4615 __func__, __LINE__);
d009b576
SS		 4616 megaraid_sas_kill_hba(instance);
4617 retval = FAILED;
a6821ca3 4618 goto out;
d009b576 4619 }
9c915a8c 4620 /* Reset load balance info */
5fc499b6
S		 4621 if (fusion->load_balance_info)
4622 memset(fusion->load_balance_info, 0,
4623 (sizeof(struct LD_LOAD_BALANCE_INFO) *
4624 MAX_LOGICAL_DRIVES_EXT));
9c915a8c
AR		 4625
4626 if (!megasas_get_map_info(instance))
4627 megasas_sync_map_info(instance);
4628
3761cb4c 4629 megasas_setup_jbod_map(instance);
4630
18365b13 4631 shost_for_each_device(sdev, shost)
15dd0381 4632 megasas_set_dynamic_target_properties(sdev);
18365b13 4633
fdd84e25 4634 /* reset stream detection array */
f369a315 4635 if (instance->adapter_type == VENTURA_SERIES) {
fdd84e25
SC		 4636 for (j = 0; j < MAX_LOGICAL_DRIVES_EXT; ++j) {
4637 memset(fusion->stream_detect_by_ld[j],
4638 0, sizeof(struct LD_STREAM_DETECT));
4639 fusion->stream_detect_by_ld[j]->mru_bit_map
4640 = MR_STREAM_BITMAP;
4641 }
4642 }
4643
ac340c5f
SS		 4644 clear_bit(MEGASAS_FUSION_IN_RESET,
4645 &instance->reset_flags);
4646 instance->instancet->enable_intr(instance);
8a01a41d 4647 atomic_set(&instance->adprecovery, MEGASAS_HBA_OPERATIONAL);
ac340c5f 4648
2d2c2331
S		 4649 dev_info(&instance->pdev->dev, "Interrupts are enabled and"
4650 " controller is OPERATIONAL for scsi:%d\n",
4651 instance->host->host_no);
4652
229fe47c
AR		 4653 /* Restart SR-IOV heartbeat */
4654 if (instance->requestorId) {
4655 if (!megasas_sriov_start_heartbeat(instance, 0))
c251a7be 4656 megasas_start_timer(instance);
229fe47c
AR		 4657 else
4658 instance->skip_heartbeat_timer_del = 1;
4659 }
4660
ac340c5f
SS		 4661 if (instance->crash_dump_drv_support &&
4662 instance->crash_dump_app_support)
4663 megasas_set_crash_dump_params(instance,
4664 MR_CRASH_BUF_TURN_ON);
4665 else
4666 megasas_set_crash_dump_params(instance,
4667 MR_CRASH_BUF_TURN_OFF);
4668
9c915a8c 4669 retval = SUCCESS;
2d2c2331
S		 4670
4671 /* Adapter reset completed successfully */
4672 dev_warn(&instance->pdev->dev,
4673 "Reset successful for scsi%d.\n",
4674 instance->host->host_no);
4675
9c915a8c
AR		 4676 goto out;
4677 }
3885c26b 4678fail_kill_adapter:
9c915a8c 4679 /* Reset failed, kill the adapter */
1be18254 4680 dev_warn(&instance->pdev->dev, "Reset failed, killing "
229fe47c 4681 "adapter scsi%d.\n", instance->host->host_no);
9c915a8c 4682 megaraid_sas_kill_hba(instance);
229fe47c 4683 instance->skip_heartbeat_timer_del = 1;
9c915a8c
AR		 4684 retval = FAILED;
4685 } else {
229fe47c
AR		 4686 /* For VF: Restart HB timer if we didn't OCR */
4687 if (instance->requestorId) {
c251a7be 4688 megasas_start_timer(instance);
229fe47c 4689 }
3f0e58bc 4690 clear_bit(MEGASAS_FUSION_IN_RESET, &instance->reset_flags);
d46a3ad6 4691 instance->instancet->enable_intr(instance);
8a01a41d 4692 atomic_set(&instance->adprecovery, MEGASAS_HBA_OPERATIONAL);
9c915a8c
AR		 4693 }
4694out:
4695 clear_bit(MEGASAS_FUSION_IN_RESET, &instance->reset_flags);
4696 mutex_unlock(&instance->reset_mutex);
4697 return retval;
4698}
4699
fc62b3fc
SS		 4700/* Fusion Crash dump collection work queue */
4701void megasas_fusion_crash_dump_wq(struct work_struct *work)
4702{
4703 struct megasas_instance *instance =
4704 container_of(work, struct megasas_instance, crash_init);
4705 u32 status_reg;
4706 u8 partial_copy = 0;
4707
4708
4709 status_reg = instance->instancet->read_fw_status_reg(instance->reg_set);
4710
4711 /*
4712 * Allocate host crash buffers to copy data from 1 MB DMA crash buffer
4713 * to host crash buffers
4714 */
4715 if (instance->drv_buf_index == 0) {
4716 /* Buffer is already allocated for old Crash dump.
4717 * Do OCR and do not wait for crash dump collection
4718 */
4719 if (instance->drv_buf_alloc) {
4720 dev_info(&instance->pdev->dev, "earlier crash dump is "
4721 "not yet copied by application, ignoring this "
4722 "crash dump and initiating OCR\n");
4723 status_reg |= MFI_STATE_CRASH_DUMP_DONE;
4724 writel(status_reg,
4725 &instance->reg_set->outbound_scratch_pad);
4726 readl(&instance->reg_set->outbound_scratch_pad);
4727 return;
4728 }
4729 megasas_alloc_host_crash_buffer(instance);
4730 dev_info(&instance->pdev->dev, "Number of host crash buffers "
4731 "allocated: %d\n", instance->drv_buf_alloc);
4732 }
4733
4734 /*
4735 * Driver has allocated max buffers, which can be allocated
4736 * and FW has more crash dump data, then driver will
4737 * ignore the data.
4738 */
4739 if (instance->drv_buf_index >= (instance->drv_buf_alloc)) {
4740 dev_info(&instance->pdev->dev, "Driver is done copying "
4741 "the buffer: %d\n", instance->drv_buf_alloc);
4742 status_reg |= MFI_STATE_CRASH_DUMP_DONE;
4743 partial_copy = 1;
4744 } else {
4745 memcpy(instance->crash_buf[instance->drv_buf_index],
4746 instance->crash_dump_buf, CRASH_DMA_BUF_SIZE);
4747 instance->drv_buf_index++;
4748 status_reg &= ~MFI_STATE_DMADONE;
4749 }
4750
4751 if (status_reg & MFI_STATE_CRASH_DUMP_DONE) {
4752 dev_info(&instance->pdev->dev, "Crash Dump is available,number "
4753 "of copied buffers: %d\n", instance->drv_buf_index);
4754 instance->fw_crash_buffer_size = instance->drv_buf_index;
4755 instance->fw_crash_state = AVAILABLE;
4756 instance->drv_buf_index = 0;
4757 writel(status_reg, &instance->reg_set->outbound_scratch_pad);
4758 readl(&instance->reg_set->outbound_scratch_pad);
4759 if (!partial_copy)
4760 megasas_reset_fusion(instance->host, 0);
4761 } else {
4762 writel(status_reg, &instance->reg_set->outbound_scratch_pad);
4763 readl(&instance->reg_set->outbound_scratch_pad);
4764 }
4765}
4766
4767
9c915a8c
AR		 4768/* Fusion OCR work queue */
4769void megasas_fusion_ocr_wq(struct work_struct *work)
4770{
4771 struct megasas_instance *instance =
4772 container_of(work, struct megasas_instance, work_init);
4773
229fe47c 4774 megasas_reset_fusion(instance->host, 0);
9c915a8c
AR		 4775}
4776
5fc499b6
S		 4777/* Allocate fusion context */
4778int
4779megasas_alloc_fusion_context(struct megasas_instance *instance)
4780{
4781 struct fusion_context *fusion;
4782
2dd689c8
S		 4783 instance->ctrl_context = kzalloc(sizeof(struct fusion_context),
4784 GFP_KERNEL);
5fc499b6 4785 if (!instance->ctrl_context) {
2dd689c8
S		 4786 dev_err(&instance->pdev->dev, "Failed from %s %d\n",
4787 __func__, __LINE__);
4788 return -ENOMEM;
5fc499b6
S		 4789 }
4790
4791 fusion = instance->ctrl_context;
4792
2dd689c8
S		 4793 fusion->log_to_span_pages = get_order(MAX_LOGICAL_DRIVES_EXT *
4794 sizeof(LD_SPAN_INFO));
4795 fusion->log_to_span =
4796 (PLD_SPAN_INFO)__get_free_pages(GFP_KERNEL | __GFP_ZERO,
4797 fusion->log_to_span_pages);
4798 if (!fusion->log_to_span) {
4799 fusion->log_to_span = vzalloc(MAX_LOGICAL_DRIVES_EXT *
4800 sizeof(LD_SPAN_INFO));
4801 if (!fusion->log_to_span) {
4802 dev_err(&instance->pdev->dev, "Failed from %s %d\n",
4803 __func__, __LINE__);
4804 return -ENOMEM;
4805 }
4806 }
4807
5fc499b6
S		 4808 fusion->load_balance_info_pages = get_order(MAX_LOGICAL_DRIVES_EXT *
4809 sizeof(struct LD_LOAD_BALANCE_INFO));
4810 fusion->load_balance_info =
4811 (struct LD_LOAD_BALANCE_INFO *)__get_free_pages(GFP_KERNEL | __GFP_ZERO,
4812 fusion->load_balance_info_pages);
4813 if (!fusion->load_balance_info) {
4814 fusion->load_balance_info = vzalloc(MAX_LOGICAL_DRIVES_EXT *
4815 sizeof(struct LD_LOAD_BALANCE_INFO));
4816 if (!fusion->load_balance_info)
4817 dev_err(&instance->pdev->dev, "Failed to allocate load_balance_info, "
4818 "continuing without Load Balance support\n");
4819 }
4820
4821 return 0;
4822}
4823
4824void
4825megasas_free_fusion_context(struct megasas_instance *instance)
4826{
4827 struct fusion_context *fusion = instance->ctrl_context;
4828
4829 if (fusion) {
4830 if (fusion->load_balance_info) {
4831 if (is_vmalloc_addr(fusion->load_balance_info))
4832 vfree(fusion->load_balance_info);
4833 else
4834 free_pages((ulong)fusion->load_balance_info,
4835 fusion->load_balance_info_pages);
4836 }
4837
2dd689c8
S		 4838 if (fusion->log_to_span) {
4839 if (is_vmalloc_addr(fusion->log_to_span))
4840 vfree(fusion->log_to_span);
4841 else
4842 free_pages((ulong)fusion->log_to_span,
4843 fusion->log_to_span_pages);
4844 }
4845
4846 kfree(fusion);
5fc499b6
S		 4847 }
4848}
4849
9c915a8c 4850struct megasas_instance_template megasas_instance_template_fusion = {
9c915a8c
AR		 4851 .enable_intr = megasas_enable_intr_fusion,
4852 .disable_intr = megasas_disable_intr_fusion,
4853 .clear_intr = megasas_clear_intr_fusion,
4854 .read_fw_status_reg = megasas_read_fw_status_reg_fusion,
4855 .adp_reset = megasas_adp_reset_fusion,
4856 .check_reset = megasas_check_reset_fusion,
4857 .service_isr = megasas_isr_fusion,
4858 .tasklet = megasas_complete_cmd_dpc_fusion,
4859 .init_adapter = megasas_init_adapter_fusion,
4860 .build_and_issue_cmd = megasas_build_and_issue_cmd_fusion,
4861 .issue_dcmd = megasas_issue_dcmd_fusion,
4862};
ubuntu-bionic-kernel mirror