projects / linux-2.6-block.git / blame
? search:
summary | shortlog | log | commit | commitdiff | tree
blob | blame (incremental) | history | HEAD
scsi: smartpqi: Add new PCI IDs
[linux-2.6-block.git] / drivers / scsi / smartpqi / smartpqi_init.c
CommitLineData
2cc37b15 1// SPDX-License-Identifier: GPL-2.0
6c223761
KB		 2/*
3 * driver for Microsemi PQI-based storage controllers
2a712681 4 * Copyright (c) 2019-2020 Microchip Technology Inc. and its subsidiaries
2f4c4b92 5 * Copyright (c) 2016-2018 Microsemi Corporation
6c223761
KB		 6 * Copyright (c) 2016 PMC-Sierra, Inc.
7 *
2f4c4b92 8 * Questions/Comments/Bugfixes to storagedev@microchip.com
6c223761
KB		 9 *
10 */
11
12#include <linux/module.h>
13#include <linux/kernel.h>
14#include <linux/pci.h>
15#include <linux/delay.h>
16#include <linux/interrupt.h>
17#include <linux/sched.h>
18#include <linux/rtc.h>
19#include <linux/bcd.h>
3c50976f 20#include <linux/reboot.h>
6c223761 21#include <linux/cciss_ioctl.h>
52198226 22#include <linux/blk-mq-pci.h>
6c223761
KB		 23#include <scsi/scsi_host.h>
24#include <scsi/scsi_cmnd.h>
25#include <scsi/scsi_device.h>
26#include <scsi/scsi_eh.h>
27#include <scsi/scsi_transport_sas.h>
28#include <asm/unaligned.h>
29#include "smartpqi.h"
30#include "smartpqi_sis.h"
31
32#if !defined(BUILD_TIMESTAMP)
33#define BUILD_TIMESTAMP
34#endif
35
5443bdc4 36#define DRIVER_VERSION "1.2.16-012"
2d154f5f 37#define DRIVER_MAJOR 1
f7cb8ac6 38#define DRIVER_MINOR 2
ce60a2b8 39#define DRIVER_RELEASE 16
5443bdc4 40#define DRIVER_REVISION 12
6c223761 41
2d154f5f
KB		 42#define DRIVER_NAME "Microsemi PQI Driver (v" \
43 DRIVER_VERSION BUILD_TIMESTAMP ")"
6c223761
KB		 44#define DRIVER_NAME_SHORT "smartpqi"
45
e1d213bd
KB		 46#define PQI_EXTRA_SGL_MEMORY (12 * sizeof(struct pqi_sg_descriptor))
47
2790cd4d
KB		 48#define PQI_POST_RESET_DELAY_SECS 5
49#define PQI_POST_OFA_RESET_DELAY_UPON_TIMEOUT_SECS 10
50
6c223761
KB		 51MODULE_AUTHOR("Microsemi");
52MODULE_DESCRIPTION("Driver for Microsemi Smart Family Controller version "
53 DRIVER_VERSION);
54MODULE_SUPPORTED_DEVICE("Microsemi Smart Family Controllers");
55MODULE_VERSION(DRIVER_VERSION);
56MODULE_LICENSE("GPL");
57
6c223761 58static void pqi_take_ctrl_offline(struct pqi_ctrl_info *ctrl_info);
5f310425 59static void pqi_ctrl_offline_worker(struct work_struct *work);
6c223761
KB		 60static int pqi_scan_scsi_devices(struct pqi_ctrl_info *ctrl_info);
61static void pqi_scan_start(struct Scsi_Host *shost);
62static void pqi_start_io(struct pqi_ctrl_info *ctrl_info,
63 struct pqi_queue_group *queue_group, enum pqi_io_path path,
64 struct pqi_io_request *io_request);
65static int pqi_submit_raid_request_synchronous(struct pqi_ctrl_info *ctrl_info,
66 struct pqi_iu_header *request, unsigned int flags,
ae0c189d 67 struct pqi_raid_error_info *error_info);
6c223761
KB		 68static int pqi_aio_submit_io(struct pqi_ctrl_info *ctrl_info,
69 struct scsi_cmnd *scmd, u32 aio_handle, u8 *cdb,
70 unsigned int cdb_length, struct pqi_queue_group *queue_group,
376fb880 71 struct pqi_encryption_info *encryption_info, bool raid_bypass);
7a012c23
DB		 72static int pqi_aio_submit_r1_write_io(struct pqi_ctrl_info *ctrl_info,
73 struct scsi_cmnd *scmd, struct pqi_queue_group *queue_group,
74 struct pqi_encryption_info *encryption_info, struct pqi_scsi_dev *device,
75 struct pqi_scsi_dev_raid_map_data *rmd);
6702d2c4
DB		 76static int pqi_aio_submit_r56_write_io(struct pqi_ctrl_info *ctrl_info,
77 struct scsi_cmnd *scmd, struct pqi_queue_group *queue_group,
78 struct pqi_encryption_info *encryption_info, struct pqi_scsi_dev *device,
79 struct pqi_scsi_dev_raid_map_data *rmd);
4fd22c13
MR		 80static void pqi_ofa_ctrl_quiesce(struct pqi_ctrl_info *ctrl_info);
81static void pqi_ofa_ctrl_unquiesce(struct pqi_ctrl_info *ctrl_info);
2790cd4d
KB		 82static int pqi_ofa_ctrl_restart(struct pqi_ctrl_info *ctrl_info, unsigned int delay_secs);
83static void pqi_ofa_setup_host_buffer(struct pqi_ctrl_info *ctrl_info);
4fd22c13
MR		 84static void pqi_ofa_free_host_buffer(struct pqi_ctrl_info *ctrl_info);
85static int pqi_ofa_host_memory_update(struct pqi_ctrl_info *ctrl_info);
1e46731e 86static int pqi_device_wait_for_pending_io(struct pqi_ctrl_info *ctrl_info,
18ff5f08 87 struct pqi_scsi_dev *device, unsigned long timeout_msecs);
6c223761
KB		 88
89/* for flags argument to pqi_submit_raid_request_synchronous() */
90#define PQI_SYNC_FLAGS_INTERRUPTABLE 0x1
91
92static struct scsi_transport_template *pqi_sas_transport_template;
93
94static atomic_t pqi_controller_count = ATOMIC_INIT(0);
95
3c50976f
KB		 96enum pqi_lockup_action {
97 NONE,
98 REBOOT,
99 PANIC
100};
101
102static enum pqi_lockup_action pqi_lockup_action = NONE;
103
104static struct {
105 enum pqi_lockup_action action;
106 char *name;
107} pqi_lockup_actions[] = {
108 {
109 .action = NONE,
110 .name = "none",
111 },
112 {
113 .action = REBOOT,
114 .name = "reboot",
115 },
116 {
117 .action = PANIC,
118 .name = "panic",
119 },
120};
121
6a50d6ad
KB		 122static unsigned int pqi_supported_event_types[] = {
123 PQI_EVENT_TYPE_HOTPLUG,
124 PQI_EVENT_TYPE_HARDWARE,
125 PQI_EVENT_TYPE_PHYSICAL_DEVICE,
126 PQI_EVENT_TYPE_LOGICAL_DEVICE,
4fd22c13 127 PQI_EVENT_TYPE_OFA,
6a50d6ad
KB		 128 PQI_EVENT_TYPE_AIO_STATE_CHANGE,
129 PQI_EVENT_TYPE_AIO_CONFIG_CHANGE,
130};
131
6c223761
KB		 132static int pqi_disable_device_id_wildcards;
133module_param_named(disable_device_id_wildcards,
cbe0c7b1 134 pqi_disable_device_id_wildcards, int, 0644);
6c223761
KB		 135MODULE_PARM_DESC(disable_device_id_wildcards,
136 "Disable device ID wildcards.");
137
5a259e32
KB		 138static int pqi_disable_heartbeat;
139module_param_named(disable_heartbeat,
140 pqi_disable_heartbeat, int, 0644);
141MODULE_PARM_DESC(disable_heartbeat,
142 "Disable heartbeat.");
143
144static int pqi_disable_ctrl_shutdown;
145module_param_named(disable_ctrl_shutdown,
146 pqi_disable_ctrl_shutdown, int, 0644);
147MODULE_PARM_DESC(disable_ctrl_shutdown,
148 "Disable controller shutdown when controller locked up.");
149
3c50976f
KB		 150static char *pqi_lockup_action_param;
151module_param_named(lockup_action,
152 pqi_lockup_action_param, charp, 0644);
153MODULE_PARM_DESC(lockup_action, "Action to take when controller locked up.\n"
154 "\t\tSupported: none, reboot, panic\n"
155 "\t\tDefault: none");
156
5e6a9760
GW		 157static int pqi_expose_ld_first;
158module_param_named(expose_ld_first,
159 pqi_expose_ld_first, int, 0644);
583891c9 160MODULE_PARM_DESC(expose_ld_first, "Expose logical drives before physical drives.");
5e6a9760 161
522bc026
DC		 162static int pqi_hide_vsep;
163module_param_named(hide_vsep,
164 pqi_hide_vsep, int, 0644);
583891c9 165MODULE_PARM_DESC(hide_vsep, "Hide the virtual SEP for direct attached drives.");
522bc026 166
6c223761
KB		 167static char *raid_levels[] = {
168 "RAID-0",
169 "RAID-4",
170 "RAID-1(1+0)",
171 "RAID-5",
172 "RAID-5+1",
7a012c23
DB		 173 "RAID-6",
174 "RAID-1(Triple)",
6c223761
KB		 175};
176
177static char *pqi_raid_level_to_string(u8 raid_level)
178{
179 if (raid_level < ARRAY_SIZE(raid_levels))
180 return raid_levels[raid_level];
181
a9f93392 182 return "RAID UNKNOWN";
6c223761
KB		 183}
184
185#define SA_RAID_0 0
186#define SA_RAID_4 1
187#define SA_RAID_1 2 /* also used for RAID 10 */
188#define SA_RAID_5 3 /* also used for RAID 50 */
189#define SA_RAID_51 4
190#define SA_RAID_6 5 /* also used for RAID 60 */
7a012c23
DB		 191#define SA_RAID_TRIPLE 6 /* also used for RAID 1+0 Triple */
192#define SA_RAID_MAX SA_RAID_TRIPLE
6c223761
KB		 193#define SA_RAID_UNKNOWN 0xff
194
195static inline void pqi_scsi_done(struct scsi_cmnd *scmd)
196{
7561a7e4 197 pqi_prep_for_scsi_done(scmd);
6c223761
KB		 198 scmd->scsi_done(scmd);
199}
200
b6e2ef67 201static inline void pqi_disable_write_same(struct scsi_device *sdev)
6c223761 202{
b6e2ef67 203 sdev->no_write_same = 1;
6c223761
KB		 204}
205
6c223761 206static inline bool pqi_scsi3addr_equal(u8 *scsi3addr1, u8 *scsi3addr2)
6c223761 207{
6c223761 208 return memcmp(scsi3addr1, scsi3addr2, 8) == 0;
6c223761
KB		 209}
210
211static inline bool pqi_is_logical_device(struct pqi_scsi_dev *device)
212{
213 return !device->is_physical_device;
214}
215
bd10cf0b
KB		 216static inline bool pqi_is_external_raid_addr(u8 *scsi3addr)
217{
218 return scsi3addr[2] != 0;
219}
220
694c5d5b
KB		 221static inline bool pqi_ctrl_offline(struct pqi_ctrl_info *ctrl_info)
222{
223 return !ctrl_info->controller_online;
224}
225
6c223761
KB		 226static inline void pqi_check_ctrl_health(struct pqi_ctrl_info *ctrl_info)
227{
228 if (ctrl_info->controller_online)
229 if (!sis_is_firmware_running(ctrl_info))
230 pqi_take_ctrl_offline(ctrl_info);
231}
232
233static inline bool pqi_is_hba_lunid(u8 *scsi3addr)
234{
235 return pqi_scsi3addr_equal(scsi3addr, RAID_CTLR_LUNID);
236}
237
583891c9 238static inline enum pqi_ctrl_mode pqi_get_ctrl_mode(struct pqi_ctrl_info *ctrl_info)
ff6abb73
KB		 239{
240 return sis_read_driver_scratch(ctrl_info);
241}
242
243static inline void pqi_save_ctrl_mode(struct pqi_ctrl_info *ctrl_info,
244 enum pqi_ctrl_mode mode)
245{
246 sis_write_driver_scratch(ctrl_info, mode);
247}
248
9fa82023
KB		 249static inline void pqi_ctrl_block_scan(struct pqi_ctrl_info *ctrl_info)
250{
251 ctrl_info->scan_blocked = true;
252 mutex_lock(&ctrl_info->scan_mutex);
253}
254
255static inline void pqi_ctrl_unblock_scan(struct pqi_ctrl_info *ctrl_info)
256{
257 ctrl_info->scan_blocked = false;
258 mutex_unlock(&ctrl_info->scan_mutex);
259}
260
261static inline bool pqi_ctrl_scan_blocked(struct pqi_ctrl_info *ctrl_info)
262{
263 return ctrl_info->scan_blocked;
264}
265
694c5d5b
KB		 266static inline void pqi_ctrl_block_device_reset(struct pqi_ctrl_info *ctrl_info)
267{
37f33181 268 mutex_lock(&ctrl_info->lun_reset_mutex);
694c5d5b
KB		 269}
270
37f33181 271static inline void pqi_ctrl_unblock_device_reset(struct pqi_ctrl_info *ctrl_info)
694c5d5b 272{
37f33181 273 mutex_unlock(&ctrl_info->lun_reset_mutex);
694c5d5b
KB		 274}
275
9fa82023
KB		 276static inline void pqi_scsi_block_requests(struct pqi_ctrl_info *ctrl_info)
277{
278 struct Scsi_Host *shost;
279 unsigned int num_loops;
280 int msecs_sleep;
281
282 shost = ctrl_info->scsi_host;
283
284 scsi_block_requests(shost);
285
286 num_loops = 0;
287 msecs_sleep = 20;
288 while (scsi_host_busy(shost)) {
289 num_loops++;
290 if (num_loops == 10)
291 msecs_sleep = 500;
292 msleep(msecs_sleep);
293 }
294}
295
296static inline void pqi_scsi_unblock_requests(struct pqi_ctrl_info *ctrl_info)
297{
298 scsi_unblock_requests(ctrl_info->scsi_host);
299}
300
301static inline void pqi_ctrl_busy(struct pqi_ctrl_info *ctrl_info)
302{
303 atomic_inc(&ctrl_info->num_busy_threads);
304}
305
306static inline void pqi_ctrl_unbusy(struct pqi_ctrl_info *ctrl_info)
307{
308 atomic_dec(&ctrl_info->num_busy_threads);
309}
310
694c5d5b
KB		 311static inline bool pqi_ctrl_blocked(struct pqi_ctrl_info *ctrl_info)
312{
313 return ctrl_info->block_requests;
314}
315
7561a7e4
KB		 316static inline void pqi_ctrl_block_requests(struct pqi_ctrl_info *ctrl_info)
317{
318 ctrl_info->block_requests = true;
7561a7e4
KB		 319}
320
321static inline void pqi_ctrl_unblock_requests(struct pqi_ctrl_info *ctrl_info)
322{
323 ctrl_info->block_requests = false;
324 wake_up_all(&ctrl_info->block_requests_wait);
7561a7e4
KB		 325}
326
ae0c189d 327static void pqi_wait_if_ctrl_blocked(struct pqi_ctrl_info *ctrl_info)
7561a7e4 328{
7561a7e4 329 if (!pqi_ctrl_blocked(ctrl_info))
ae0c189d 330 return;
7561a7e4
KB		 331
332 atomic_inc(&ctrl_info->num_blocked_threads);
ae0c189d
KB		 333 wait_event(ctrl_info->block_requests_wait,
334 !pqi_ctrl_blocked(ctrl_info));
7561a7e4 335 atomic_dec(&ctrl_info->num_blocked_threads);
7561a7e4
KB		 336}
337
18ff5f08
KB		 338#define PQI_QUIESCE_WARNING_TIMEOUT_SECS 10
339
7561a7e4
KB		 340static inline void pqi_ctrl_wait_until_quiesced(struct pqi_ctrl_info *ctrl_info)
341{
18ff5f08
KB		 342 unsigned long start_jiffies;
343 unsigned long warning_timeout;
344 bool displayed_warning;
345
346 displayed_warning = false;
347 start_jiffies = jiffies;
348 warning_timeout = (PQI_QUIESCE_WARNING_TIMEOUT_SECS * PQI_HZ) + start_jiffies;
349
7561a7e4 350 while (atomic_read(&ctrl_info->num_busy_threads) >
18ff5f08
KB		 351 atomic_read(&ctrl_info->num_blocked_threads)) {
352 if (time_after(jiffies, warning_timeout)) {
353 dev_warn(&ctrl_info->pci_dev->dev,
354 "waiting %u seconds for driver activity to quiesce\n",
355 jiffies_to_msecs(jiffies - start_jiffies) / 1000);
356 displayed_warning = true;
357 warning_timeout = (PQI_QUIESCE_WARNING_TIMEOUT_SECS * PQI_HZ) + jiffies;
358 }
7561a7e4 359 usleep_range(1000, 2000);
18ff5f08
KB		 360 }
361
362 if (displayed_warning)
363 dev_warn(&ctrl_info->pci_dev->dev,
364 "driver activity quiesced after waiting for %u seconds\n",
365 jiffies_to_msecs(jiffies - start_jiffies) / 1000);
7561a7e4
KB		 366}
367
03b288cf
KB		 368static inline bool pqi_device_offline(struct pqi_scsi_dev *device)
369{
370 return device->device_offline;
371}
372
2790cd4d 373static inline void pqi_ctrl_ofa_start(struct pqi_ctrl_info *ctrl_info)
7561a7e4 374{
2790cd4d 375 mutex_lock(&ctrl_info->ofa_mutex);
7561a7e4 376}
6c223761 377
2790cd4d 378static inline void pqi_ctrl_ofa_done(struct pqi_ctrl_info *ctrl_info)
4fd22c13 379{
2790cd4d 380 mutex_unlock(&ctrl_info->ofa_mutex);
4fd22c13
MR		 381}
382
2790cd4d 383static inline void pqi_wait_until_ofa_finished(struct pqi_ctrl_info *ctrl_info)
4fd22c13 384{
2790cd4d
KB		 385 mutex_lock(&ctrl_info->ofa_mutex);
386 mutex_unlock(&ctrl_info->ofa_mutex);
4fd22c13
MR		 387}
388
2790cd4d 389static inline bool pqi_ofa_in_progress(struct pqi_ctrl_info *ctrl_info)
4fd22c13 390{
2790cd4d 391 return mutex_is_locked(&ctrl_info->ofa_mutex);
4fd22c13
MR		 392}
393
1e46731e
MR		 394static inline void pqi_device_remove_start(struct pqi_scsi_dev *device)
395{
396 device->in_remove = true;
397}
398
1bdf6e93 399static inline bool pqi_device_in_remove(struct pqi_scsi_dev *device)
1e46731e 400{
1bdf6e93 401 return device->in_remove;
1e46731e
MR		 402}
403
2790cd4d 404static inline int pqi_event_type_to_event_index(unsigned int event_type)
0530736e 405{
2790cd4d
KB		 406 int index;
407
408 for (index = 0; index < ARRAY_SIZE(pqi_supported_event_types); index++)
409 if (event_type == pqi_supported_event_types[index])
410 return index;
411
412 return -1;
0530736e
KB		 413}
414
2790cd4d 415static inline bool pqi_is_supported_event(unsigned int event_type)
0530736e 416{
2790cd4d 417 return pqi_event_type_to_event_index(event_type) != -1;
0530736e
KB		 418}
419
583891c9
KB		 420static inline void pqi_schedule_rescan_worker_with_delay(struct pqi_ctrl_info *ctrl_info,
421 unsigned long delay)
5f310425
KB		 422{
423 if (pqi_ctrl_offline(ctrl_info))
424 return;
425
426 schedule_delayed_work(&ctrl_info->rescan_work, delay);
427}
428
6c223761
KB		 429static inline void pqi_schedule_rescan_worker(struct pqi_ctrl_info *ctrl_info)
430{
5f310425
KB		 431 pqi_schedule_rescan_worker_with_delay(ctrl_info, 0);
432}
433
4fd22c13 434#define PQI_RESCAN_WORK_DELAY (10 * PQI_HZ)
5f310425 435
583891c9 436static inline void pqi_schedule_rescan_worker_delayed(struct pqi_ctrl_info *ctrl_info)
5f310425
KB		 437{
438 pqi_schedule_rescan_worker_with_delay(ctrl_info, PQI_RESCAN_WORK_DELAY);
6c223761
KB		 439}
440
061ef06a
KB		 441static inline void pqi_cancel_rescan_worker(struct pqi_ctrl_info *ctrl_info)
442{
443 cancel_delayed_work_sync(&ctrl_info->rescan_work);
444}
445
0530736e
KB		 446static inline void pqi_cancel_event_worker(struct pqi_ctrl_info *ctrl_info)
447{
448 cancel_work_sync(&ctrl_info->event_work);
449}
450
98f87667
KB		 451static inline u32 pqi_read_heartbeat_counter(struct pqi_ctrl_info *ctrl_info)
452{
453 if (!ctrl_info->heartbeat_counter)
454 return 0;
455
456 return readl(ctrl_info->heartbeat_counter);
457}
458
4fd22c13
MR		 459static inline u8 pqi_read_soft_reset_status(struct pqi_ctrl_info *ctrl_info)
460{
4fd22c13
MR		 461 return readb(ctrl_info->soft_reset_status);
462}
463
4ccc354b 464static inline void pqi_clear_soft_reset_status(struct pqi_ctrl_info *ctrl_info)
4fd22c13
MR		 465{
466 u8 status;
467
4fd22c13 468 status = pqi_read_soft_reset_status(ctrl_info);
4ccc354b 469 status &= ~PQI_SOFT_RESET_ABORT;
4fd22c13
MR		 470 writeb(status, ctrl_info->soft_reset_status);
471}
472
6c223761
KB		 473static int pqi_map_single(struct pci_dev *pci_dev,
474 struct pqi_sg_descriptor *sg_descriptor, void *buffer,
6917a9cc 475 size_t buffer_length, enum dma_data_direction data_direction)
6c223761
KB		 476{
477 dma_addr_t bus_address;
478
6917a9cc 479 if (!buffer || buffer_length == 0 || data_direction == DMA_NONE)
6c223761
KB		 480 return 0;
481
6917a9cc 482 bus_address = dma_map_single(&pci_dev->dev, buffer, buffer_length,
6c223761 483 data_direction);
6917a9cc 484 if (dma_mapping_error(&pci_dev->dev, bus_address))
6c223761
KB		 485 return -ENOMEM;
486
487 put_unaligned_le64((u64)bus_address, &sg_descriptor->address);
488 put_unaligned_le32(buffer_length, &sg_descriptor->length);
489 put_unaligned_le32(CISS_SG_LAST, &sg_descriptor->flags);
490
491 return 0;
492}
493
494static void pqi_pci_unmap(struct pci_dev *pci_dev,
495 struct pqi_sg_descriptor *descriptors, int num_descriptors,
6917a9cc 496 enum dma_data_direction data_direction)
6c223761
KB		 497{
498 int i;
499
6917a9cc 500 if (data_direction == DMA_NONE)
6c223761
KB		 501 return;
502
503 for (i = 0; i < num_descriptors; i++)
6917a9cc 504 dma_unmap_single(&pci_dev->dev,
6c223761
KB		 505 (dma_addr_t)get_unaligned_le64(&descriptors[i].address),
506 get_unaligned_le32(&descriptors[i].length),
507 data_direction);
508}
509
510static int pqi_build_raid_path_request(struct pqi_ctrl_info *ctrl_info,
511 struct pqi_raid_path_request *request, u8 cmd,
512 u8 *scsi3addr, void *buffer, size_t buffer_length,
6917a9cc 513 u16 vpd_page, enum dma_data_direction *dir)
6c223761
KB		 514{
515 u8 *cdb;
171c2865 516 size_t cdb_length = buffer_length;
6c223761
KB		 517
518 memset(request, 0, sizeof(*request));
519
520 request->header.iu_type = PQI_REQUEST_IU_RAID_PATH_IO;
521 put_unaligned_le16(offsetof(struct pqi_raid_path_request,
522 sg_descriptors[1]) - PQI_REQUEST_HEADER_LENGTH,
523 &request->header.iu_length);
524 put_unaligned_le32(buffer_length, &request->buffer_length);
525 memcpy(request->lun_number, scsi3addr, sizeof(request->lun_number));
526 request->task_attribute = SOP_TASK_ATTRIBUTE_SIMPLE;
527 request->additional_cdb_bytes_usage = SOP_ADDITIONAL_CDB_BYTES_0;
528
529 cdb = request->cdb;
530
531 switch (cmd) {
532 case INQUIRY:
533 request->data_direction = SOP_READ_FLAG;
534 cdb[0] = INQUIRY;
535 if (vpd_page & VPD_PAGE) {
536 cdb[1] = 0x1;
537 cdb[2] = (u8)vpd_page;
538 }
171c2865 539 cdb[4] = (u8)cdb_length;
6c223761
KB		 540 break;
541 case CISS_REPORT_LOG:
542 case CISS_REPORT_PHYS:
543 request->data_direction = SOP_READ_FLAG;
544 cdb[0] = cmd;
545 if (cmd == CISS_REPORT_PHYS)
694c5d5b 546 cdb[1] = CISS_REPORT_PHYS_FLAG_OTHER;
6c223761 547 else
f6cc2a77 548 cdb[1] = ctrl_info->ciss_report_log_flags;
171c2865 549 put_unaligned_be32(cdb_length, &cdb[6]);
6c223761
KB		 550 break;
551 case CISS_GET_RAID_MAP:
552 request->data_direction = SOP_READ_FLAG;
553 cdb[0] = CISS_READ;
554 cdb[1] = CISS_GET_RAID_MAP;
171c2865 555 put_unaligned_be32(cdb_length, &cdb[6]);
6c223761 556 break;
58322fe0 557 case SA_FLUSH_CACHE:
ae0c189d 558 request->header.driver_flags = PQI_DRIVER_NONBLOCKABLE_REQUEST;
6c223761
KB		 559 request->data_direction = SOP_WRITE_FLAG;
560 cdb[0] = BMIC_WRITE;
58322fe0 561 cdb[6] = BMIC_FLUSH_CACHE;
171c2865 562 put_unaligned_be16(cdb_length, &cdb[7]);
6c223761 563 break;
171c2865
DC		 564 case BMIC_SENSE_DIAG_OPTIONS:
565 cdb_length = 0;
df561f66 566 fallthrough;
6c223761
KB		 567 case BMIC_IDENTIFY_CONTROLLER:
568 case BMIC_IDENTIFY_PHYSICAL_DEVICE:
6d90615f 569 case BMIC_SENSE_SUBSYSTEM_INFORMATION:
f6cc2a77 570 case BMIC_SENSE_FEATURE:
6c223761
KB		 571 request->data_direction = SOP_READ_FLAG;
572 cdb[0] = BMIC_READ;
573 cdb[6] = cmd;
171c2865 574 put_unaligned_be16(cdb_length, &cdb[7]);
6c223761 575 break;
171c2865
DC		 576 case BMIC_SET_DIAG_OPTIONS:
577 cdb_length = 0;
df561f66 578 fallthrough;
6c223761
KB		 579 case BMIC_WRITE_HOST_WELLNESS:
580 request->data_direction = SOP_WRITE_FLAG;
581 cdb[0] = BMIC_WRITE;
582 cdb[6] = cmd;
171c2865 583 put_unaligned_be16(cdb_length, &cdb[7]);
6c223761 584 break;
3d46a59a
DB		 585 case BMIC_CSMI_PASSTHRU:
586 request->data_direction = SOP_BIDIRECTIONAL;
587 cdb[0] = BMIC_WRITE;
588 cdb[5] = CSMI_CC_SAS_SMP_PASSTHRU;
589 cdb[6] = cmd;
590 put_unaligned_be16(cdb_length, &cdb[7]);
6c223761
KB		 591 break;
592 default:
9e68cccc 593 dev_err(&ctrl_info->pci_dev->dev, "unknown command 0x%c\n", cmd);
6c223761
KB		 594 break;
595 }
596
597 switch (request->data_direction) {
598 case SOP_READ_FLAG:
6917a9cc 599 *dir = DMA_FROM_DEVICE;
6c223761
KB		 600 break;
601 case SOP_WRITE_FLAG:
6917a9cc 602 *dir = DMA_TO_DEVICE;
6c223761
KB		 603 break;
604 case SOP_NO_DIRECTION_FLAG:
6917a9cc 605 *dir = DMA_NONE;
6c223761
KB		 606 break;
607 default:
6917a9cc 608 *dir = DMA_BIDIRECTIONAL;
6c223761
KB		 609 break;
610 }
611
6c223761 612 return pqi_map_single(ctrl_info->pci_dev, &request->sg_descriptors[0],
6917a9cc 613 buffer, buffer_length, *dir);
6c223761
KB		 614}
615
376fb880
KB		 616static inline void pqi_reinit_io_request(struct pqi_io_request *io_request)
617{
618 io_request->scmd = NULL;
619 io_request->status = 0;
620 io_request->error_info = NULL;
621 io_request->raid_bypass = false;
622}
623
6c223761
KB		 624static struct pqi_io_request *pqi_alloc_io_request(
625 struct pqi_ctrl_info *ctrl_info)
626{
627 struct pqi_io_request *io_request;
628 u16 i = ctrl_info->next_io_request_slot; /* benignly racy */
629
630 while (1) {
631 io_request = &ctrl_info->io_request_pool[i];
632 if (atomic_inc_return(&io_request->refcount) == 1)
633 break;
634 atomic_dec(&io_request->refcount);
635 i = (i + 1) % ctrl_info->max_io_slots;
636 }
637
638 /* benignly racy */
639 ctrl_info->next_io_request_slot = (i + 1) % ctrl_info->max_io_slots;
640
376fb880 641 pqi_reinit_io_request(io_request);
6c223761
KB		 642
643 return io_request;
644}
645
646static void pqi_free_io_request(struct pqi_io_request *io_request)
647{
648 atomic_dec(&io_request->refcount);
649}
650
02133b68 651static int pqi_send_scsi_raid_request(struct pqi_ctrl_info *ctrl_info, u8 cmd,
694c5d5b 652 u8 *scsi3addr, void *buffer, size_t buffer_length, u16 vpd_page,
ae0c189d 653 struct pqi_raid_error_info *error_info)
6c223761
KB		 654{
655 int rc;
6c223761 656 struct pqi_raid_path_request request;
694c5d5b 657 enum dma_data_direction dir;
6c223761 658
583891c9
KB		 659 rc = pqi_build_raid_path_request(ctrl_info, &request, cmd, scsi3addr,
660 buffer, buffer_length, vpd_page, &dir);
6c223761
KB		 661 if (rc)
662 return rc;
663
ae0c189d 664 rc = pqi_submit_raid_request_synchronous(ctrl_info, &request.header, 0, error_info);
6c223761 665
6917a9cc 666 pqi_pci_unmap(ctrl_info->pci_dev, request.sg_descriptors, 1, dir);
694c5d5b 667
6c223761
KB		 668 return rc;
669}
670
694c5d5b 671/* helper functions for pqi_send_scsi_raid_request */
02133b68
DC		 672
673static inline int pqi_send_ctrl_raid_request(struct pqi_ctrl_info *ctrl_info,
694c5d5b 674 u8 cmd, void *buffer, size_t buffer_length)
6c223761 675{
02133b68 676 return pqi_send_scsi_raid_request(ctrl_info, cmd, RAID_CTLR_LUNID,
ae0c189d 677 buffer, buffer_length, 0, NULL);
02133b68 678}
6c223761 679
02133b68 680static inline int pqi_send_ctrl_raid_with_error(struct pqi_ctrl_info *ctrl_info,
694c5d5b
KB		 681 u8 cmd, void *buffer, size_t buffer_length,
682 struct pqi_raid_error_info *error_info)
02133b68
DC		 683{
684 return pqi_send_scsi_raid_request(ctrl_info, cmd, RAID_CTLR_LUNID,
ae0c189d 685 buffer, buffer_length, 0, error_info);
02133b68 686}
6c223761 687
02133b68 688static inline int pqi_identify_controller(struct pqi_ctrl_info *ctrl_info,
694c5d5b 689 struct bmic_identify_controller *buffer)
02133b68
DC		 690{
691 return pqi_send_ctrl_raid_request(ctrl_info, BMIC_IDENTIFY_CONTROLLER,
694c5d5b 692 buffer, sizeof(*buffer));
02133b68
DC		 693}
694
6d90615f 695static inline int pqi_sense_subsystem_info(struct pqi_ctrl_info *ctrl_info,
694c5d5b 696 struct bmic_sense_subsystem_info *sense_info)
6d90615f
MB		 697{
698 return pqi_send_ctrl_raid_request(ctrl_info,
694c5d5b
KB		 699 BMIC_SENSE_SUBSYSTEM_INFORMATION, sense_info,
700 sizeof(*sense_info));
6d90615f
MB		 701}
702
02133b68 703static inline int pqi_scsi_inquiry(struct pqi_ctrl_info *ctrl_info,
6c223761 704 u8 *scsi3addr, u16 vpd_page, void *buffer, size_t buffer_length)
02133b68
DC		 705{
706 return pqi_send_scsi_raid_request(ctrl_info, INQUIRY, scsi3addr,
ae0c189d 707 buffer, buffer_length, vpd_page, NULL);
6c223761
KB		 708}
709
710static int pqi_identify_physical_device(struct pqi_ctrl_info *ctrl_info,
711 struct pqi_scsi_dev *device,
694c5d5b 712 struct bmic_identify_physical_device *buffer, size_t buffer_length)
6c223761
KB		 713{
714 int rc;
6917a9cc 715 enum dma_data_direction dir;
6c223761
KB		 716 u16 bmic_device_index;
717 struct pqi_raid_path_request request;
718
719 rc = pqi_build_raid_path_request(ctrl_info, &request,
720 BMIC_IDENTIFY_PHYSICAL_DEVICE, RAID_CTLR_LUNID, buffer,
6917a9cc 721 buffer_length, 0, &dir);
6c223761
KB		 722 if (rc)
723 return rc;
724
725 bmic_device_index = CISS_GET_DRIVE_NUMBER(device->scsi3addr);
726 request.cdb[2] = (u8)bmic_device_index;
727 request.cdb[9] = (u8)(bmic_device_index >> 8);
728
ae0c189d 729 rc = pqi_submit_raid_request_synchronous(ctrl_info, &request.header, 0, NULL);
6c223761 730
6917a9cc 731 pqi_pci_unmap(ctrl_info->pci_dev, request.sg_descriptors, 1, dir);
694c5d5b 732
6c223761
KB		 733 return rc;
734}
735
f6cc2a77
KB		 736static inline u32 pqi_aio_limit_to_bytes(__le16 *limit)
737{
738 u32 bytes;
739
740 bytes = get_unaligned_le16(limit);
741 if (bytes == 0)
742 bytes = ~0;
743 else
744 bytes *= 1024;
745
746 return bytes;
747}
748
749#pragma pack(1)
750
751struct bmic_sense_feature_buffer {
752 struct bmic_sense_feature_buffer_header header;
753 struct bmic_sense_feature_io_page_aio_subpage aio_subpage;
754};
755
756#pragma pack()
757
758#define MINIMUM_AIO_SUBPAGE_BUFFER_LENGTH \
759 offsetofend(struct bmic_sense_feature_buffer, \
760 aio_subpage.max_write_raid_1_10_3drive)
761
762#define MINIMUM_AIO_SUBPAGE_LENGTH \
763 (offsetofend(struct bmic_sense_feature_io_page_aio_subpage, \
764 max_write_raid_1_10_3drive) - \
765 sizeof_field(struct bmic_sense_feature_io_page_aio_subpage, header))
766
767static int pqi_get_advanced_raid_bypass_config(struct pqi_ctrl_info *ctrl_info)
768{
769 int rc;
770 enum dma_data_direction dir;
771 struct pqi_raid_path_request request;
772 struct bmic_sense_feature_buffer *buffer;
773
774 buffer = kmalloc(sizeof(*buffer), GFP_KERNEL);
775 if (!buffer)
776 return -ENOMEM;
777
583891c9
KB		 778 rc = pqi_build_raid_path_request(ctrl_info, &request, BMIC_SENSE_FEATURE, RAID_CTLR_LUNID,
779 buffer, sizeof(*buffer), 0, &dir);
f6cc2a77
KB		 780 if (rc)
781 goto error;
782
783 request.cdb[2] = BMIC_SENSE_FEATURE_IO_PAGE;
784 request.cdb[3] = BMIC_SENSE_FEATURE_IO_PAGE_AIO_SUBPAGE;
785
ae0c189d 786 rc = pqi_submit_raid_request_synchronous(ctrl_info, &request.header, 0, NULL);
f6cc2a77
KB		 787
788 pqi_pci_unmap(ctrl_info->pci_dev, request.sg_descriptors, 1, dir);
789
790 if (rc)
791 goto error;
792
793 if (buffer->header.page_code != BMIC_SENSE_FEATURE_IO_PAGE ||
794 buffer->header.subpage_code !=
795 BMIC_SENSE_FEATURE_IO_PAGE_AIO_SUBPAGE ||
796 get_unaligned_le16(&buffer->header.buffer_length) <
797 MINIMUM_AIO_SUBPAGE_BUFFER_LENGTH ||
798 buffer->aio_subpage.header.page_code !=
799 BMIC_SENSE_FEATURE_IO_PAGE ||
800 buffer->aio_subpage.header.subpage_code !=
801 BMIC_SENSE_FEATURE_IO_PAGE_AIO_SUBPAGE ||
802 get_unaligned_le16(&buffer->aio_subpage.header.page_length) <
803 MINIMUM_AIO_SUBPAGE_LENGTH) {
804 goto error;
805 }
806
807 ctrl_info->max_transfer_encrypted_sas_sata =
808 pqi_aio_limit_to_bytes(
809 &buffer->aio_subpage.max_transfer_encrypted_sas_sata);
810
811 ctrl_info->max_transfer_encrypted_nvme =
812 pqi_aio_limit_to_bytes(
813 &buffer->aio_subpage.max_transfer_encrypted_nvme);
814
815 ctrl_info->max_write_raid_5_6 =
816 pqi_aio_limit_to_bytes(
817 &buffer->aio_subpage.max_write_raid_5_6);
818
819 ctrl_info->max_write_raid_1_10_2drive =
820 pqi_aio_limit_to_bytes(
821 &buffer->aio_subpage.max_write_raid_1_10_2drive);
822
823 ctrl_info->max_write_raid_1_10_3drive =
824 pqi_aio_limit_to_bytes(
825 &buffer->aio_subpage.max_write_raid_1_10_3drive);
826
827error:
828 kfree(buffer);
829
830 return rc;
831}
832
58322fe0
KB		 833static int pqi_flush_cache(struct pqi_ctrl_info *ctrl_info,
834 enum bmic_flush_cache_shutdown_event shutdown_event)
6c223761
KB		 835{
836 int rc;
58322fe0 837 struct bmic_flush_cache *flush_cache;
6c223761 838
58322fe0
KB		 839 flush_cache = kzalloc(sizeof(*flush_cache), GFP_KERNEL);
840 if (!flush_cache)
6c223761
KB		 841 return -ENOMEM;
842
58322fe0
KB		 843 flush_cache->shutdown_event = shutdown_event;
844
02133b68
DC		 845 rc = pqi_send_ctrl_raid_request(ctrl_info, SA_FLUSH_CACHE, flush_cache,
846 sizeof(*flush_cache));
6c223761 847
58322fe0 848 kfree(flush_cache);
6c223761
KB		 849
850 return rc;
851}
852
3d46a59a
DB		 853int pqi_csmi_smp_passthru(struct pqi_ctrl_info *ctrl_info,
854 struct bmic_csmi_smp_passthru_buffer *buffer, size_t buffer_length,
855 struct pqi_raid_error_info *error_info)
856{
857 return pqi_send_ctrl_raid_with_error(ctrl_info, BMIC_CSMI_PASSTHRU,
858 buffer, buffer_length, error_info);
859}
171c2865 860
694c5d5b 861#define PQI_FETCH_PTRAID_DATA (1 << 31)
171c2865
DC		 862
863static int pqi_set_diag_rescan(struct pqi_ctrl_info *ctrl_info)
6c223761
KB		 864{
865 int rc;
171c2865 866 struct bmic_diag_options *diag;
6c223761 867
171c2865
DC		 868 diag = kzalloc(sizeof(*diag), GFP_KERNEL);
869 if (!diag)
870 return -ENOMEM;
871
02133b68 872 rc = pqi_send_ctrl_raid_request(ctrl_info, BMIC_SENSE_DIAG_OPTIONS,
694c5d5b 873 diag, sizeof(*diag));
6c223761 874 if (rc)
171c2865 875 goto out;
6c223761 876
171c2865
DC		 877 diag->options |= cpu_to_le32(PQI_FETCH_PTRAID_DATA);
878
694c5d5b
KB		 879 rc = pqi_send_ctrl_raid_request(ctrl_info, BMIC_SET_DIAG_OPTIONS, diag,
880 sizeof(*diag));
881
171c2865
DC		 882out:
883 kfree(diag);
6c223761 884
6c223761
KB		 885 return rc;
886}
887
02133b68 888static inline int pqi_write_host_wellness(struct pqi_ctrl_info *ctrl_info,
6c223761
KB		 889 void *buffer, size_t buffer_length)
890{
02133b68 891 return pqi_send_ctrl_raid_request(ctrl_info, BMIC_WRITE_HOST_WELLNESS,
694c5d5b 892 buffer, buffer_length);
6c223761
KB		 893}
894
895#pragma pack(1)
896
897struct bmic_host_wellness_driver_version {
898 u8 start_tag[4];
899 u8 driver_version_tag[2];
900 __le16 driver_version_length;
901 char driver_version[32];
b2346b50 902 u8 dont_write_tag[2];
6c223761
KB		 903 u8 end_tag[2];
904};
905
906#pragma pack()
907
908static int pqi_write_driver_version_to_host_wellness(
909 struct pqi_ctrl_info *ctrl_info)
910{
911 int rc;
912 struct bmic_host_wellness_driver_version *buffer;
913 size_t buffer_length;
914
915 buffer_length = sizeof(*buffer);
916
917 buffer = kmalloc(buffer_length, GFP_KERNEL);
918 if (!buffer)
919 return -ENOMEM;
920
921 buffer->start_tag[0] = '<';
922 buffer->start_tag[1] = 'H';
923 buffer->start_tag[2] = 'W';
924 buffer->start_tag[3] = '>';
925 buffer->driver_version_tag[0] = 'D';
926 buffer->driver_version_tag[1] = 'V';
927 put_unaligned_le16(sizeof(buffer->driver_version),
928 &buffer->driver_version_length);
061ef06a 929 strncpy(buffer->driver_version, "Linux " DRIVER_VERSION,
6c223761
KB		 930 sizeof(buffer->driver_version) - 1);
931 buffer->driver_version[sizeof(buffer->driver_version) - 1] = '\0';
b2346b50
MR		 932 buffer->dont_write_tag[0] = 'D';
933 buffer->dont_write_tag[1] = 'W';
6c223761
KB		 934 buffer->end_tag[0] = 'Z';
935 buffer->end_tag[1] = 'Z';
936
937 rc = pqi_write_host_wellness(ctrl_info, buffer, buffer_length);
938
939 kfree(buffer);
940
941 return rc;
942}
943
944#pragma pack(1)
945
946struct bmic_host_wellness_time {
947 u8 start_tag[4];
948 u8 time_tag[2];
949 __le16 time_length;
950 u8 time[8];
951 u8 dont_write_tag[2];
952 u8 end_tag[2];
953};
954
955#pragma pack()
956
957static int pqi_write_current_time_to_host_wellness(
958 struct pqi_ctrl_info *ctrl_info)
959{
960 int rc;
961 struct bmic_host_wellness_time *buffer;
962 size_t buffer_length;
963 time64_t local_time;
964 unsigned int year;
ed10858e 965 struct tm tm;
6c223761
KB		 966
967 buffer_length = sizeof(*buffer);
968
969 buffer = kmalloc(buffer_length, GFP_KERNEL);
970 if (!buffer)
971 return -ENOMEM;
972
973 buffer->start_tag[0] = '<';
974 buffer->start_tag[1] = 'H';
975 buffer->start_tag[2] = 'W';
976 buffer->start_tag[3] = '>';
977 buffer->time_tag[0] = 'T';
978 buffer->time_tag[1] = 'D';
979 put_unaligned_le16(sizeof(buffer->time),
980 &buffer->time_length);
981
ed10858e
AB		 982 local_time = ktime_get_real_seconds();
983 time64_to_tm(local_time, -sys_tz.tz_minuteswest * 60, &tm);
6c223761
KB		 984 year = tm.tm_year + 1900;
985
986 buffer->time[0] = bin2bcd(tm.tm_hour);
987 buffer->time[1] = bin2bcd(tm.tm_min);
988 buffer->time[2] = bin2bcd(tm.tm_sec);
989 buffer->time[3] = 0;
990 buffer->time[4] = bin2bcd(tm.tm_mon + 1);
991 buffer->time[5] = bin2bcd(tm.tm_mday);
992 buffer->time[6] = bin2bcd(year / 100);
993 buffer->time[7] = bin2bcd(year % 100);
994
995 buffer->dont_write_tag[0] = 'D';
996 buffer->dont_write_tag[1] = 'W';
997 buffer->end_tag[0] = 'Z';
998 buffer->end_tag[1] = 'Z';
999
1000 rc = pqi_write_host_wellness(ctrl_info, buffer, buffer_length);
1001
1002 kfree(buffer);
1003
1004 return rc;
1005}
1006
4fd22c13 1007#define PQI_UPDATE_TIME_WORK_INTERVAL (24UL * 60 * 60 * PQI_HZ)
6c223761
KB		 1008
1009static void pqi_update_time_worker(struct work_struct *work)
1010{
1011 int rc;
1012 struct pqi_ctrl_info *ctrl_info;
1013
1014 ctrl_info = container_of(to_delayed_work(work), struct pqi_ctrl_info,
1015 update_time_work);
1016
6c223761
KB		 1017 rc = pqi_write_current_time_to_host_wellness(ctrl_info);
1018 if (rc)
1019 dev_warn(&ctrl_info->pci_dev->dev,
1020 "error updating time on controller\n");
1021
1022 schedule_delayed_work(&ctrl_info->update_time_work,
1023 PQI_UPDATE_TIME_WORK_INTERVAL);
1024}
1025
583891c9 1026static inline void pqi_schedule_update_time_worker(struct pqi_ctrl_info *ctrl_info)
6c223761 1027{
4fbebf1a 1028 schedule_delayed_work(&ctrl_info->update_time_work, 0);
061ef06a
KB		 1029}
1030
583891c9 1031static inline void pqi_cancel_update_time_worker(struct pqi_ctrl_info *ctrl_info)
061ef06a 1032{
061ef06a 1033 cancel_delayed_work_sync(&ctrl_info->update_time_work);
6c223761
KB		 1034}
1035
583891c9
KB		 1036static inline int pqi_report_luns(struct pqi_ctrl_info *ctrl_info, u8 cmd, void *buffer,
1037 size_t buffer_length)
6c223761 1038{
583891c9 1039 return pqi_send_ctrl_raid_request(ctrl_info, cmd, buffer, buffer_length);
6c223761
KB		 1040}
1041
583891c9 1042static int pqi_report_phys_logical_luns(struct pqi_ctrl_info *ctrl_info, u8 cmd, void **buffer)
6c223761
KB		 1043{
1044 int rc;
1045 size_t lun_list_length;
1046 size_t lun_data_length;
1047 size_t new_lun_list_length;
1048 void *lun_data = NULL;
1049 struct report_lun_header *report_lun_header;
1050
1051 report_lun_header = kmalloc(sizeof(*report_lun_header), GFP_KERNEL);
1052 if (!report_lun_header) {
1053 rc = -ENOMEM;
1054 goto out;
1055 }
1056
583891c9 1057 rc = pqi_report_luns(ctrl_info, cmd, report_lun_header, sizeof(*report_lun_header));
6c223761
KB		 1058 if (rc)
1059 goto out;
1060
1061 lun_list_length = get_unaligned_be32(&report_lun_header->list_length);
1062
1063again:
1064 lun_data_length = sizeof(struct report_lun_header) + lun_list_length;
1065
1066 lun_data = kmalloc(lun_data_length, GFP_KERNEL);
1067 if (!lun_data) {
1068 rc = -ENOMEM;
1069 goto out;
1070 }
1071
1072 if (lun_list_length == 0) {
1073 memcpy(lun_data, report_lun_header, sizeof(*report_lun_header));
1074 goto out;
1075 }
1076
1077 rc = pqi_report_luns(ctrl_info, cmd, lun_data, lun_data_length);
1078 if (rc)
1079 goto out;
1080
583891c9
KB		 1081 new_lun_list_length =
1082 get_unaligned_be32(&((struct report_lun_header *)lun_data)->list_length);
6c223761
KB		 1083
1084 if (new_lun_list_length > lun_list_length) {
1085 lun_list_length = new_lun_list_length;
1086 kfree(lun_data);
1087 goto again;
1088 }
1089
1090out:
1091 kfree(report_lun_header);
1092
1093 if (rc) {
1094 kfree(lun_data);
1095 lun_data = NULL;
1096 }
1097
1098 *buffer = lun_data;
1099
1100 return rc;
1101}
1102
583891c9 1103static inline int pqi_report_phys_luns(struct pqi_ctrl_info *ctrl_info, void **buffer)
6c223761 1104{
583891c9 1105 return pqi_report_phys_logical_luns(ctrl_info, CISS_REPORT_PHYS, buffer);
6c223761
KB		 1106}
1107
583891c9 1108static inline int pqi_report_logical_luns(struct pqi_ctrl_info *ctrl_info, void **buffer)
6c223761
KB		 1109{
1110 return pqi_report_phys_logical_luns(ctrl_info, CISS_REPORT_LOG, buffer);
1111}
1112
1113static int pqi_get_device_lists(struct pqi_ctrl_info *ctrl_info,
1114 struct report_phys_lun_extended **physdev_list,
1115 struct report_log_lun_extended **logdev_list)
1116{
1117 int rc;
1118 size_t logdev_list_length;
1119 size_t logdev_data_length;
1120 struct report_log_lun_extended *internal_logdev_list;
1121 struct report_log_lun_extended *logdev_data;
1122 struct report_lun_header report_lun_header;
1123
1124 rc = pqi_report_phys_luns(ctrl_info, (void **)physdev_list);
1125 if (rc)
1126 dev_err(&ctrl_info->pci_dev->dev,
1127 "report physical LUNs failed\n");
1128
1129 rc = pqi_report_logical_luns(ctrl_info, (void **)logdev_list);
1130 if (rc)
1131 dev_err(&ctrl_info->pci_dev->dev,
1132 "report logical LUNs failed\n");
1133
1134 /*
1135 * Tack the controller itself onto the end of the logical device list.
1136 */
1137
1138 logdev_data = *logdev_list;
1139
1140 if (logdev_data) {
1141 logdev_list_length =
1142 get_unaligned_be32(&logdev_data->header.list_length);
1143 } else {
1144 memset(&report_lun_header, 0, sizeof(report_lun_header));
1145 logdev_data =
1146 (struct report_log_lun_extended *)&report_lun_header;
1147 logdev_list_length = 0;
1148 }
1149
1150 logdev_data_length = sizeof(struct report_lun_header) +
1151 logdev_list_length;
1152
1153 internal_logdev_list = kmalloc(logdev_data_length +
1154 sizeof(struct report_log_lun_extended), GFP_KERNEL);
1155 if (!internal_logdev_list) {
1156 kfree(*logdev_list);
1157 *logdev_list = NULL;
1158 return -ENOMEM;
1159 }
1160
1161 memcpy(internal_logdev_list, logdev_data, logdev_data_length);
1162 memset((u8 *)internal_logdev_list + logdev_data_length, 0,
1163 sizeof(struct report_log_lun_extended_entry));
1164 put_unaligned_be32(logdev_list_length +
1165 sizeof(struct report_log_lun_extended_entry),
1166 &internal_logdev_list->header.list_length);
1167
1168 kfree(*logdev_list);
1169 *logdev_list = internal_logdev_list;
1170
1171 return 0;
1172}
1173
1174static inline void pqi_set_bus_target_lun(struct pqi_scsi_dev *device,
1175 int bus, int target, int lun)
1176{
1177 device->bus = bus;
1178 device->target = target;
1179 device->lun = lun;
1180}
1181
1182static void pqi_assign_bus_target_lun(struct pqi_scsi_dev *device)
1183{
1184 u8 *scsi3addr;
1185 u32 lunid;
bd10cf0b
KB		 1186 int bus;
1187 int target;
1188 int lun;
6c223761
KB		 1189
1190 scsi3addr = device->scsi3addr;
1191 lunid = get_unaligned_le32(scsi3addr);
1192
1193 if (pqi_is_hba_lunid(scsi3addr)) {
1194 /* The specified device is the controller. */
1195 pqi_set_bus_target_lun(device, PQI_HBA_BUS, 0, lunid & 0x3fff);
1196 device->target_lun_valid = true;
1197 return;
1198 }
1199
1200 if (pqi_is_logical_device(device)) {
bd10cf0b
KB		 1201 if (device->is_external_raid_device) {
1202 bus = PQI_EXTERNAL_RAID_VOLUME_BUS;
1203 target = (lunid >> 16) & 0x3fff;
1204 lun = lunid & 0xff;
1205 } else {
1206 bus = PQI_RAID_VOLUME_BUS;
1207 target = 0;
1208 lun = lunid & 0x3fff;
1209 }
1210 pqi_set_bus_target_lun(device, bus, target, lun);
6c223761
KB		 1211 device->target_lun_valid = true;
1212 return;
1213 }
1214
1215 /*
1216 * Defer target and LUN assignment for non-controller physical devices
1217 * because the SAS transport layer will make these assignments later.
1218 */
1219 pqi_set_bus_target_lun(device, PQI_PHYSICAL_DEVICE_BUS, 0, 0);
1220}
1221
1222static void pqi_get_raid_level(struct pqi_ctrl_info *ctrl_info,
1223 struct pqi_scsi_dev *device)
1224{
1225 int rc;
1226 u8 raid_level;
1227 u8 *buffer;
1228
1229 raid_level = SA_RAID_UNKNOWN;
1230
1231 buffer = kmalloc(64, GFP_KERNEL);
1232 if (buffer) {
1233 rc = pqi_scsi_inquiry(ctrl_info, device->scsi3addr,
1234 VPD_PAGE | CISS_VPD_LV_DEVICE_GEOMETRY, buffer, 64);
1235 if (rc == 0) {
1236 raid_level = buffer[8];
1237 if (raid_level > SA_RAID_MAX)
1238 raid_level = SA_RAID_UNKNOWN;
1239 }
1240 kfree(buffer);
1241 }
1242
1243 device->raid_level = raid_level;
1244}
1245
1246static int pqi_validate_raid_map(struct pqi_ctrl_info *ctrl_info,
1247 struct pqi_scsi_dev *device, struct raid_map *raid_map)
1248{
1249 char *err_msg;
1250 u32 raid_map_size;
1251 u32 r5or6_blocks_per_row;
6c223761
KB		 1252
1253 raid_map_size = get_unaligned_le32(&raid_map->structure_size);
1254
1255 if (raid_map_size < offsetof(struct raid_map, disk_data)) {
1256 err_msg = "RAID map too small";
1257 goto bad_raid_map;
1258 }
1259
6c223761
KB		 1260 if (device->raid_level == SA_RAID_1) {
1261 if (get_unaligned_le16(&raid_map->layout_map_count) != 2) {
1262 err_msg = "invalid RAID-1 map";
1263 goto bad_raid_map;
1264 }
7a012c23 1265 } else if (device->raid_level == SA_RAID_TRIPLE) {
6c223761 1266 if (get_unaligned_le16(&raid_map->layout_map_count) != 3) {
7a012c23 1267 err_msg = "invalid RAID-1(Triple) map";
6c223761
KB		 1268 goto bad_raid_map;
1269 }
1270 } else if ((device->raid_level == SA_RAID_5 ||
1271 device->raid_level == SA_RAID_6) &&
1272 get_unaligned_le16(&raid_map->layout_map_count) > 1) {
1273 /* RAID 50/60 */
1274 r5or6_blocks_per_row =
1275 get_unaligned_le16(&raid_map->strip_size) *
1276 get_unaligned_le16(&raid_map->data_disks_per_row);
1277 if (r5or6_blocks_per_row == 0) {
1278 err_msg = "invalid RAID-5 or RAID-6 map";
1279 goto bad_raid_map;
1280 }
1281 }
1282
1283 return 0;
1284
1285bad_raid_map:
d87d5474 1286 dev_warn(&ctrl_info->pci_dev->dev,
38a7338a
KB		 1287 "logical device %08x%08x %s\n",
1288 *((u32 *)&device->scsi3addr),
1289 *((u32 *)&device->scsi3addr[4]), err_msg);
6c223761
KB		 1290
1291 return -EINVAL;
1292}
1293
1294static int pqi_get_raid_map(struct pqi_ctrl_info *ctrl_info,
1295 struct pqi_scsi_dev *device)
1296{
1297 int rc;
a91aaae0 1298 u32 raid_map_size;
6c223761
KB		 1299 struct raid_map *raid_map;
1300
1301 raid_map = kmalloc(sizeof(*raid_map), GFP_KERNEL);
1302 if (!raid_map)
1303 return -ENOMEM;
1304
a91aaae0 1305 rc = pqi_send_scsi_raid_request(ctrl_info, CISS_GET_RAID_MAP,
ae0c189d 1306 device->scsi3addr, raid_map, sizeof(*raid_map), 0, NULL);
6c223761
KB		 1307 if (rc)
1308 goto error;
1309
a91aaae0 1310 raid_map_size = get_unaligned_le32(&raid_map->structure_size);
6c223761 1311
a91aaae0 1312 if (raid_map_size > sizeof(*raid_map)) {
6c223761 1313
a91aaae0
AK		 1314 kfree(raid_map);
1315
1316 raid_map = kmalloc(raid_map_size, GFP_KERNEL);
1317 if (!raid_map)
1318 return -ENOMEM;
1319
1320 rc = pqi_send_scsi_raid_request(ctrl_info, CISS_GET_RAID_MAP,
ae0c189d 1321 device->scsi3addr, raid_map, raid_map_size, 0, NULL);
a91aaae0
AK		 1322 if (rc)
1323 goto error;
1324
1325 if (get_unaligned_le32(&raid_map->structure_size)
1326 != raid_map_size) {
1327 dev_warn(&ctrl_info->pci_dev->dev,
583891c9 1328 "requested %u bytes, received %u bytes\n",
a91aaae0
AK		 1329 raid_map_size,
1330 get_unaligned_le32(&raid_map->structure_size));
1331 goto error;
1332 }
1333 }
6c223761
KB		 1334
1335 rc = pqi_validate_raid_map(ctrl_info, device, raid_map);
1336 if (rc)
1337 goto error;
1338
1339 device->raid_map = raid_map;
1340
1341 return 0;
1342
1343error:
1344 kfree(raid_map);
1345
1346 return rc;
1347}
1348
f6cc2a77
KB		 1349static void pqi_set_max_transfer_encrypted(struct pqi_ctrl_info *ctrl_info,
1350 struct pqi_scsi_dev *device)
1351{
1352 if (!ctrl_info->lv_drive_type_mix_valid) {
1353 device->max_transfer_encrypted = ~0;
1354 return;
1355 }
1356
1357 switch (LV_GET_DRIVE_TYPE_MIX(device->scsi3addr)) {
1358 case LV_DRIVE_TYPE_MIX_SAS_HDD_ONLY:
1359 case LV_DRIVE_TYPE_MIX_SATA_HDD_ONLY:
1360 case LV_DRIVE_TYPE_MIX_SAS_OR_SATA_SSD_ONLY:
1361 case LV_DRIVE_TYPE_MIX_SAS_SSD_ONLY:
1362 case LV_DRIVE_TYPE_MIX_SATA_SSD_ONLY:
1363 case LV_DRIVE_TYPE_MIX_SAS_ONLY:
1364 case LV_DRIVE_TYPE_MIX_SATA_ONLY:
1365 device->max_transfer_encrypted =
1366 ctrl_info->max_transfer_encrypted_sas_sata;
1367 break;
1368 case LV_DRIVE_TYPE_MIX_NVME_ONLY:
1369 device->max_transfer_encrypted =
1370 ctrl_info->max_transfer_encrypted_nvme;
1371 break;
1372 case LV_DRIVE_TYPE_MIX_UNKNOWN:
1373 case LV_DRIVE_TYPE_MIX_NO_RESTRICTION:
1374 default:
1375 device->max_transfer_encrypted =
1376 min(ctrl_info->max_transfer_encrypted_sas_sata,
1377 ctrl_info->max_transfer_encrypted_nvme);
1378 break;
1379 }
1380}
1381
588a63fe 1382static void pqi_get_raid_bypass_status(struct pqi_ctrl_info *ctrl_info,
6c223761
KB		 1383 struct pqi_scsi_dev *device)
1384{
1385 int rc;
1386 u8 *buffer;
588a63fe 1387 u8 bypass_status;
6c223761
KB		 1388
1389 buffer = kmalloc(64, GFP_KERNEL);
1390 if (!buffer)
1391 return;
1392
1393 rc = pqi_scsi_inquiry(ctrl_info, device->scsi3addr,
588a63fe 1394 VPD_PAGE | CISS_VPD_LV_BYPASS_STATUS, buffer, 64);
6c223761
KB		 1395 if (rc)
1396 goto out;
1397
694c5d5b
KB		 1398#define RAID_BYPASS_STATUS 4
1399#define RAID_BYPASS_CONFIGURED 0x1
1400#define RAID_BYPASS_ENABLED 0x2
6c223761 1401
588a63fe
KB		 1402 bypass_status = buffer[RAID_BYPASS_STATUS];
1403 device->raid_bypass_configured =
1404 (bypass_status & RAID_BYPASS_CONFIGURED) != 0;
1405 if (device->raid_bypass_configured &&
1406 (bypass_status & RAID_BYPASS_ENABLED) &&
f6cc2a77 1407 pqi_get_raid_map(ctrl_info, device) == 0) {
588a63fe 1408 device->raid_bypass_enabled = true;
f6cc2a77
KB		 1409 if (get_unaligned_le16(&device->raid_map->flags) &
1410 RAID_MAP_ENCRYPTION_ENABLED)
1411 pqi_set_max_transfer_encrypted(ctrl_info, device);
1412 }
6c223761
KB		 1413
1414out:
1415 kfree(buffer);
1416}
1417
1418/*
1419 * Use vendor-specific VPD to determine online/offline status of a volume.
1420 */
1421
1422static void pqi_get_volume_status(struct pqi_ctrl_info *ctrl_info,
1423 struct pqi_scsi_dev *device)
1424{
1425 int rc;
1426 size_t page_length;
1427 u8 volume_status = CISS_LV_STATUS_UNAVAILABLE;
1428 bool volume_offline = true;
1429 u32 volume_flags;
1430 struct ciss_vpd_logical_volume_status *vpd;
1431
1432 vpd = kmalloc(sizeof(*vpd), GFP_KERNEL);
1433 if (!vpd)
1434 goto no_buffer;
1435
1436 rc = pqi_scsi_inquiry(ctrl_info, device->scsi3addr,
1437 VPD_PAGE | CISS_VPD_LV_STATUS, vpd, sizeof(*vpd));
1438 if (rc)
1439 goto out;
1440
7ff44499
DC		 1441 if (vpd->page_code != CISS_VPD_LV_STATUS)
1442 goto out;
1443
6c223761
KB		 1444 page_length = offsetof(struct ciss_vpd_logical_volume_status,
1445 volume_status) + vpd->page_length;
1446 if (page_length < sizeof(*vpd))
1447 goto out;
1448
1449 volume_status = vpd->volume_status;
1450 volume_flags = get_unaligned_be32(&vpd->flags);
1451 volume_offline = (volume_flags & CISS_LV_FLAGS_NO_HOST_IO) != 0;
1452
1453out:
1454 kfree(vpd);
1455no_buffer:
1456 device->volume_status = volume_status;
1457 device->volume_offline = volume_offline;
1458}
1459
ec504b23
MB		 1460#define PQI_DEVICE_PHY_MAP_SUPPORTED 0x10
1461
ce143793
KB		 1462static int pqi_get_physical_device_info(struct pqi_ctrl_info *ctrl_info,
1463 struct pqi_scsi_dev *device,
1464 struct bmic_identify_physical_device *id_phys)
1465{
1466 int rc;
26b390ab 1467
ce143793
KB		 1468 memset(id_phys, 0, sizeof(*id_phys));
1469
1470 rc = pqi_identify_physical_device(ctrl_info, device,
1471 id_phys, sizeof(*id_phys));
1472 if (rc) {
1473 device->queue_depth = PQI_PHYSICAL_DISK_DEFAULT_MAX_QUEUE_DEPTH;
1474 return rc;
1475 }
1476
1477 scsi_sanitize_inquiry_string(&id_phys->model[0], 8);
1478 scsi_sanitize_inquiry_string(&id_phys->model[8], 16);
1479
1480 memcpy(device->vendor, &id_phys->model[0], sizeof(device->vendor));
1481 memcpy(device->model, &id_phys->model[8], sizeof(device->model));
1482
1483 device->box_index = id_phys->box_index;
1484 device->phys_box_on_bus = id_phys->phys_box_on_bus;
1485 device->phy_connected_dev_type = id_phys->phy_connected_dev_type[0];
1486 device->queue_depth =
1487 get_unaligned_le16(&id_phys->current_queue_depth_limit);
1488 device->active_path_index = id_phys->active_path_number;
1489 device->path_map = id_phys->redundant_path_present_map;
1490 memcpy(&device->box,
1491 &id_phys->alternate_paths_phys_box_on_port,
1492 sizeof(device->box));
1493 memcpy(&device->phys_connector,
1494 &id_phys->alternate_paths_phys_connector,
1495 sizeof(device->phys_connector));
1496 device->bay = id_phys->phys_bay_in_box;
1497
7a84a821
KB		 1498 memcpy(&device->page_83_identifier, &id_phys->page_83_identifier,
1499 sizeof(device->page_83_identifier));
1500
ec504b23
MB		 1501 if ((id_phys->even_more_flags & PQI_DEVICE_PHY_MAP_SUPPORTED) &&
1502 id_phys->phy_count)
1503 device->phy_id =
1504 id_phys->phy_to_phy_map[device->active_path_index];
1505 else
1506 device->phy_id = 0xFF;
1507
ce143793
KB		 1508 return 0;
1509}
1510
1511static int pqi_get_logical_device_info(struct pqi_ctrl_info *ctrl_info,
6c223761
KB		 1512 struct pqi_scsi_dev *device)
1513{
1514 int rc;
1515 u8 *buffer;
3d46a59a 1516
6c223761
KB		 1517 buffer = kmalloc(64, GFP_KERNEL);
1518 if (!buffer)
1519 return -ENOMEM;
1520
1521 /* Send an inquiry to the device to see what it is. */
ce143793
KB		 1522 rc = pqi_scsi_inquiry(ctrl_info, device->scsi3addr, 0, buffer, 64);
1523 if (rc)
1524 goto out;
6c223761
KB		 1525
1526 scsi_sanitize_inquiry_string(&buffer[8], 8);
1527 scsi_sanitize_inquiry_string(&buffer[16], 16);
1528
1529 device->devtype = buffer[0] & 0x1f;
cbe0c7b1
KB		 1530 memcpy(device->vendor, &buffer[8], sizeof(device->vendor));
1531 memcpy(device->model, &buffer[16], sizeof(device->model));
6c223761 1532
ce143793 1533 if (device->devtype == TYPE_DISK) {
bd10cf0b
KB		 1534 if (device->is_external_raid_device) {
1535 device->raid_level = SA_RAID_UNKNOWN;
1536 device->volume_status = CISS_LV_OK;
1537 device->volume_offline = false;
1538 } else {
1539 pqi_get_raid_level(ctrl_info, device);
588a63fe 1540 pqi_get_raid_bypass_status(ctrl_info, device);
bd10cf0b
KB		 1541 pqi_get_volume_status(ctrl_info, device);
1542 }
6c223761
KB		 1543 }
1544
1545out:
1546 kfree(buffer);
1547
1548 return rc;
1549}
1550
ce143793 1551static int pqi_get_device_info(struct pqi_ctrl_info *ctrl_info,
6c223761
KB		 1552 struct pqi_scsi_dev *device,
1553 struct bmic_identify_physical_device *id_phys)
1554{
1555 int rc;
1556
ce143793
KB		 1557 if (device->is_expander_smp_device)
1558 return 0;
6c223761 1559
ce143793
KB		 1560 if (pqi_is_logical_device(device))
1561 rc = pqi_get_logical_device_info(ctrl_info, device);
1562 else
1563 rc = pqi_get_physical_device_info(ctrl_info, device, id_phys);
694c5d5b 1564
ce143793 1565 return rc;
6c223761
KB		 1566}
1567
1568static void pqi_show_volume_status(struct pqi_ctrl_info *ctrl_info,
1569 struct pqi_scsi_dev *device)
1570{
1571 char *status;
1572 static const char unknown_state_str[] =
1573 "Volume is in an unknown state (%u)";
1574 char unknown_state_buffer[sizeof(unknown_state_str) + 10];
1575
1576 switch (device->volume_status) {
1577 case CISS_LV_OK:
1578 status = "Volume online";
1579 break;
1580 case CISS_LV_FAILED:
1581 status = "Volume failed";
1582 break;
1583 case CISS_LV_NOT_CONFIGURED:
1584 status = "Volume not configured";
1585 break;
1586 case CISS_LV_DEGRADED:
1587 status = "Volume degraded";
1588 break;
1589 case CISS_LV_READY_FOR_RECOVERY:
1590 status = "Volume ready for recovery operation";
1591 break;
1592 case CISS_LV_UNDERGOING_RECOVERY:
1593 status = "Volume undergoing recovery";
1594 break;
1595 case CISS_LV_WRONG_PHYSICAL_DRIVE_REPLACED:
1596 status = "Wrong physical drive was replaced";
1597 break;
1598 case CISS_LV_PHYSICAL_DRIVE_CONNECTION_PROBLEM:
1599 status = "A physical drive not properly connected";
1600 break;
1601 case CISS_LV_HARDWARE_OVERHEATING:
1602 status = "Hardware is overheating";
1603 break;
1604 case CISS_LV_HARDWARE_HAS_OVERHEATED:
1605 status = "Hardware has overheated";
1606 break;
1607 case CISS_LV_UNDERGOING_EXPANSION:
1608 status = "Volume undergoing expansion";
1609 break;
1610 case CISS_LV_NOT_AVAILABLE:
1611 status = "Volume waiting for transforming volume";
1612 break;
1613 case CISS_LV_QUEUED_FOR_EXPANSION:
1614 status = "Volume queued for expansion";
1615 break;
1616 case CISS_LV_DISABLED_SCSI_ID_CONFLICT:
1617 status = "Volume disabled due to SCSI ID conflict";
1618 break;
1619 case CISS_LV_EJECTED:
1620 status = "Volume has been ejected";
1621 break;
1622 case CISS_LV_UNDERGOING_ERASE:
1623 status = "Volume undergoing background erase";
1624 break;
1625 case CISS_LV_READY_FOR_PREDICTIVE_SPARE_REBUILD:
1626 status = "Volume ready for predictive spare rebuild";
1627 break;
1628 case CISS_LV_UNDERGOING_RPI:
1629 status = "Volume undergoing rapid parity initialization";
1630 break;
1631 case CISS_LV_PENDING_RPI:
1632 status = "Volume queued for rapid parity initialization";
1633 break;
1634 case CISS_LV_ENCRYPTED_NO_KEY:
1635 status = "Encrypted volume inaccessible - key not present";
1636 break;
1637 case CISS_LV_UNDERGOING_ENCRYPTION:
1638 status = "Volume undergoing encryption process";
1639 break;
1640 case CISS_LV_UNDERGOING_ENCRYPTION_REKEYING:
1641 status = "Volume undergoing encryption re-keying process";
1642 break;
1643 case CISS_LV_ENCRYPTED_IN_NON_ENCRYPTED_CONTROLLER:
d87d5474 1644 status = "Volume encrypted but encryption is disabled";
6c223761
KB		 1645 break;
1646 case CISS_LV_PENDING_ENCRYPTION:
1647 status = "Volume pending migration to encrypted state";
1648 break;
1649 case CISS_LV_PENDING_ENCRYPTION_REKEYING:
1650 status = "Volume pending encryption rekeying";
1651 break;
1652 case CISS_LV_NOT_SUPPORTED:
1653 status = "Volume not supported on this controller";
1654 break;
1655 case CISS_LV_STATUS_UNAVAILABLE:
1656 status = "Volume status not available";
1657 break;
1658 default:
1659 snprintf(unknown_state_buffer, sizeof(unknown_state_buffer),
1660 unknown_state_str, device->volume_status);
1661 status = unknown_state_buffer;
1662 break;
1663 }
1664
1665 dev_info(&ctrl_info->pci_dev->dev,
1666 "scsi %d:%d:%d:%d %s\n",
1667 ctrl_info->scsi_host->host_no,
1668 device->bus, device->target, device->lun, status);
1669}
1670
6c223761
KB		 1671static void pqi_rescan_worker(struct work_struct *work)
1672{
1673 struct pqi_ctrl_info *ctrl_info;
1674
1675 ctrl_info = container_of(to_delayed_work(work), struct pqi_ctrl_info,
1676 rescan_work);
1677
1678 pqi_scan_scsi_devices(ctrl_info);
1679}
1680
1681static int pqi_add_device(struct pqi_ctrl_info *ctrl_info,
1682 struct pqi_scsi_dev *device)
1683{
1684 int rc;
1685
1686 if (pqi_is_logical_device(device))
1687 rc = scsi_add_device(ctrl_info->scsi_host, device->bus,
1688 device->target, device->lun);
1689 else
1690 rc = pqi_add_sas_device(ctrl_info->sas_host, device);
1691
1692 return rc;
1693}
1694
18ff5f08 1695#define PQI_REMOVE_DEVICE_PENDING_IO_TIMEOUT_MSECS (20 * 1000)
1e46731e 1696
583891c9 1697static inline void pqi_remove_device(struct pqi_ctrl_info *ctrl_info, struct pqi_scsi_dev *device)
6c223761 1698{
1e46731e
MR		 1699 int rc;
1700
1701 pqi_device_remove_start(device);
1702
18ff5f08
KB		 1703 rc = pqi_device_wait_for_pending_io(ctrl_info, device,
1704 PQI_REMOVE_DEVICE_PENDING_IO_TIMEOUT_MSECS);
1e46731e
MR		 1705 if (rc)
1706 dev_err(&ctrl_info->pci_dev->dev,
4d15ad38 1707 "scsi %d:%d:%d:%d removing device with %d outstanding command(s)\n",
1e46731e
MR		 1708 ctrl_info->scsi_host->host_no, device->bus,
1709 device->target, device->lun,
1710 atomic_read(&device->scsi_cmds_outstanding));
1711
6c223761
KB		 1712 if (pqi_is_logical_device(device))
1713 scsi_remove_device(device->sdev);
1714 else
1715 pqi_remove_sas_device(device);
1716}
1717
1718/* Assumes the SCSI device list lock is held. */
1719
1720static struct pqi_scsi_dev *pqi_find_scsi_dev(struct pqi_ctrl_info *ctrl_info,
1721 int bus, int target, int lun)
1722{
1723 struct pqi_scsi_dev *device;
1724
4d15ad38
KB		 1725 list_for_each_entry(device, &ctrl_info->scsi_device_list, scsi_device_list_entry)
1726 if (device->bus == bus && device->target == target && device->lun == lun)
6c223761
KB		 1727 return device;
1728
1729 return NULL;
1730}
1731
583891c9 1732static inline bool pqi_device_equal(struct pqi_scsi_dev *dev1, struct pqi_scsi_dev *dev2)
6c223761
KB		 1733{
1734 if (dev1->is_physical_device != dev2->is_physical_device)
1735 return false;
1736
1737 if (dev1->is_physical_device)
1738 return dev1->wwid == dev2->wwid;
1739
583891c9 1740 return memcmp(dev1->volume_id, dev2->volume_id, sizeof(dev1->volume_id)) == 0;
6c223761
KB		 1741}
1742
1743enum pqi_find_result {
1744 DEVICE_NOT_FOUND,
1745 DEVICE_CHANGED,
1746 DEVICE_SAME,
1747};
1748
1749static enum pqi_find_result pqi_scsi_find_entry(struct pqi_ctrl_info *ctrl_info,
4d15ad38 1750 struct pqi_scsi_dev *device_to_find, struct pqi_scsi_dev **matching_device)
6c223761
KB		 1751{
1752 struct pqi_scsi_dev *device;
1753
4d15ad38
KB		 1754 list_for_each_entry(device, &ctrl_info->scsi_device_list, scsi_device_list_entry) {
1755 if (pqi_scsi3addr_equal(device_to_find->scsi3addr, device->scsi3addr)) {
6c223761
KB		 1756 *matching_device = device;
1757 if (pqi_device_equal(device_to_find, device)) {
1758 if (device_to_find->volume_offline)
1759 return DEVICE_CHANGED;
1760 return DEVICE_SAME;
1761 }
1762 return DEVICE_CHANGED;
1763 }
1764 }
1765
1766 return DEVICE_NOT_FOUND;
1767}
1768
3d46a59a
DB		 1769static inline const char *pqi_device_type(struct pqi_scsi_dev *device)
1770{
1771 if (device->is_expander_smp_device)
1772 return "Enclosure SMP ";
1773
1774 return scsi_device_type(device->devtype);
1775}
1776
6de783f6
KB		 1777#define PQI_DEV_INFO_BUFFER_LENGTH 128
1778
6c223761
KB		 1779static void pqi_dev_info(struct pqi_ctrl_info *ctrl_info,
1780 char *action, struct pqi_scsi_dev *device)
1781{
6de783f6
KB		 1782 ssize_t count;
1783 char buffer[PQI_DEV_INFO_BUFFER_LENGTH];
1784
a4256252 1785 count = scnprintf(buffer, PQI_DEV_INFO_BUFFER_LENGTH,
6de783f6
KB		 1786 "%d:%d:", ctrl_info->scsi_host->host_no, device->bus);
1787
1788 if (device->target_lun_valid)
181aea89 1789 count += scnprintf(buffer + count,
6de783f6
KB		 1790 PQI_DEV_INFO_BUFFER_LENGTH - count,
1791 "%d:%d",
1792 device->target,
1793 device->lun);
1794 else
181aea89 1795 count += scnprintf(buffer + count,
6de783f6
KB		 1796 PQI_DEV_INFO_BUFFER_LENGTH - count,
1797 "-:-");
1798
1799 if (pqi_is_logical_device(device))
181aea89 1800 count += scnprintf(buffer + count,
6de783f6
KB		 1801 PQI_DEV_INFO_BUFFER_LENGTH - count,
1802 " %08x%08x",
1803 *((u32 *)&device->scsi3addr),
1804 *((u32 *)&device->scsi3addr[4]));
1805 else
181aea89 1806 count += scnprintf(buffer + count,
6de783f6
KB		 1807 PQI_DEV_INFO_BUFFER_LENGTH - count,
1808 " %016llx", device->sas_address);
1809
181aea89 1810 count += scnprintf(buffer + count, PQI_DEV_INFO_BUFFER_LENGTH - count,
6de783f6 1811 " %s %.8s %.16s ",
3d46a59a 1812 pqi_device_type(device),
6c223761 1813 device->vendor,
6de783f6
KB		 1814 device->model);
1815
1816 if (pqi_is_logical_device(device)) {
1817 if (device->devtype == TYPE_DISK)
181aea89 1818 count += scnprintf(buffer + count,
6de783f6
KB		 1819 PQI_DEV_INFO_BUFFER_LENGTH - count,
1820 "SSDSmartPathCap%c En%c %-12s",
588a63fe
KB		 1821 device->raid_bypass_configured ? '+' : '-',
1822 device->raid_bypass_enabled ? '+' : '-',
6de783f6
KB		 1823 pqi_raid_level_to_string(device->raid_level));
1824 } else {
181aea89 1825 count += scnprintf(buffer + count,
6de783f6
KB		 1826 PQI_DEV_INFO_BUFFER_LENGTH - count,
1827 "AIO%c", device->aio_enabled ? '+' : '-');
1828 if (device->devtype == TYPE_DISK ||
1829 device->devtype == TYPE_ZBC)
181aea89 1830 count += scnprintf(buffer + count,
6de783f6
KB		 1831 PQI_DEV_INFO_BUFFER_LENGTH - count,
1832 " qd=%-6d", device->queue_depth);
1833 }
1834
1835 dev_info(&ctrl_info->pci_dev->dev, "%s %s\n", action, buffer);
6c223761
KB		 1836}
1837
1838/* Assumes the SCSI device list lock is held. */
1839
1840static void pqi_scsi_update_device(struct pqi_scsi_dev *existing_device,
1841 struct pqi_scsi_dev *new_device)
1842{
6c223761
KB		 1843 existing_device->device_type = new_device->device_type;
1844 existing_device->bus = new_device->bus;
1845 if (new_device->target_lun_valid) {
1846 existing_device->target = new_device->target;
1847 existing_device->lun = new_device->lun;
1848 existing_device->target_lun_valid = true;
1849 }
1850
244ca45e
MR		 1851 if ((existing_device->volume_status == CISS_LV_QUEUED_FOR_EXPANSION ||
1852 existing_device->volume_status == CISS_LV_UNDERGOING_EXPANSION) &&
1853 new_device->volume_status == CISS_LV_OK)
1854 existing_device->rescan = true;
1855
6c223761
KB		 1856 /* By definition, the scsi3addr and wwid fields are already the same. */
1857
1858 existing_device->is_physical_device = new_device->is_physical_device;
bd10cf0b
KB		 1859 existing_device->is_external_raid_device =
1860 new_device->is_external_raid_device;
3d46a59a
DB		 1861 existing_device->is_expander_smp_device =
1862 new_device->is_expander_smp_device;
6c223761
KB		 1863 existing_device->aio_enabled = new_device->aio_enabled;
1864 memcpy(existing_device->vendor, new_device->vendor,
1865 sizeof(existing_device->vendor));
1866 memcpy(existing_device->model, new_device->model,
1867 sizeof(existing_device->model));
1868 existing_device->sas_address = new_device->sas_address;
1869 existing_device->raid_level = new_device->raid_level;
1870 existing_device->queue_depth = new_device->queue_depth;
1871 existing_device->aio_handle = new_device->aio_handle;
1872 existing_device->volume_status = new_device->volume_status;
1873 existing_device->active_path_index = new_device->active_path_index;
ec504b23 1874 existing_device->phy_id = new_device->phy_id;
6c223761
KB		 1875 existing_device->path_map = new_device->path_map;
1876 existing_device->bay = new_device->bay;
2d2ad4bc
GW		 1877 existing_device->box_index = new_device->box_index;
1878 existing_device->phys_box_on_bus = new_device->phys_box_on_bus;
583891c9 1879 existing_device->phy_connected_dev_type = new_device->phy_connected_dev_type;
6c223761
KB		 1880 memcpy(existing_device->box, new_device->box,
1881 sizeof(existing_device->box));
1882 memcpy(existing_device->phys_connector, new_device->phys_connector,
1883 sizeof(existing_device->phys_connector));
7a012c23 1884 existing_device->next_bypass_group = 0;
6c223761
KB		 1885 kfree(existing_device->raid_map);
1886 existing_device->raid_map = new_device->raid_map;
588a63fe
KB		 1887 existing_device->raid_bypass_configured =
1888 new_device->raid_bypass_configured;
1889 existing_device->raid_bypass_enabled =
1890 new_device->raid_bypass_enabled;
a9a68101 1891 existing_device->device_offline = false;
6c223761
KB		 1892
1893 /* To prevent this from being freed later. */
1894 new_device->raid_map = NULL;
1895}
1896
1897static inline void pqi_free_device(struct pqi_scsi_dev *device)
1898{
1899 if (device) {
1900 kfree(device->raid_map);
1901 kfree(device);
1902 }
1903}
1904
1905/*
1906 * Called when exposing a new device to the OS fails in order to re-adjust
1907 * our internal SCSI device list to match the SCSI ML's view.
1908 */
1909
1910static inline void pqi_fixup_botched_add(struct pqi_ctrl_info *ctrl_info,
1911 struct pqi_scsi_dev *device)
1912{
1913 unsigned long flags;
1914
1915 spin_lock_irqsave(&ctrl_info->scsi_device_list_lock, flags);
1916 list_del(&device->scsi_device_list_entry);
1917 spin_unlock_irqrestore(&ctrl_info->scsi_device_list_lock, flags);
1918
1919 /* Allow the device structure to be freed later. */
1920 device->keep_device = false;
1921}
1922
3d46a59a
DB		 1923static inline bool pqi_is_device_added(struct pqi_scsi_dev *device)
1924{
1925 if (device->is_expander_smp_device)
1926 return device->sas_port != NULL;
1927
1928 return device->sdev != NULL;
1929}
1930
6c223761
KB		 1931static void pqi_update_device_list(struct pqi_ctrl_info *ctrl_info,
1932 struct pqi_scsi_dev *new_device_list[], unsigned int num_new_devices)
1933{
1934 int rc;
1935 unsigned int i;
1936 unsigned long flags;
1937 enum pqi_find_result find_result;
1938 struct pqi_scsi_dev *device;
1939 struct pqi_scsi_dev *next;
1940 struct pqi_scsi_dev *matching_device;
8a994a04
KB		 1941 LIST_HEAD(add_list);
1942 LIST_HEAD(delete_list);
6c223761
KB		 1943
1944 /*
1945 * The idea here is to do as little work as possible while holding the
1946 * spinlock. That's why we go to great pains to defer anything other
1947 * than updating the internal device list until after we release the
1948 * spinlock.
1949 */
1950
1951 spin_lock_irqsave(&ctrl_info->scsi_device_list_lock, flags);
1952
1953 /* Assume that all devices in the existing list have gone away. */
4d15ad38 1954 list_for_each_entry(device, &ctrl_info->scsi_device_list, scsi_device_list_entry)
6c223761
KB		 1955 device->device_gone = true;
1956
1957 for (i = 0; i < num_new_devices; i++) {
1958 device = new_device_list[i];
1959
1960 find_result = pqi_scsi_find_entry(ctrl_info, device,
694c5d5b 1961 &matching_device);
6c223761
KB		 1962
1963 switch (find_result) {
1964 case DEVICE_SAME:
1965 /*
1966 * The newly found device is already in the existing
1967 * device list.
1968 */
1969 device->new_device = false;
1970 matching_device->device_gone = false;
1971 pqi_scsi_update_device(matching_device, device);
1972 break;
1973 case DEVICE_NOT_FOUND:
1974 /*
1975 * The newly found device is NOT in the existing device
1976 * list.
1977 */
1978 device->new_device = true;
1979 break;
1980 case DEVICE_CHANGED:
1981 /*
1982 * The original device has gone away and we need to add
1983 * the new device.
1984 */
1985 device->new_device = true;
1986 break;
6c223761
KB		 1987 }
1988 }
1989
1990 /* Process all devices that have gone away. */
1991 list_for_each_entry_safe(device, next, &ctrl_info->scsi_device_list,
1992 scsi_device_list_entry) {
1993 if (device->device_gone) {
4d15ad38 1994 list_del_init(&device->scsi_device_list_entry);
6c223761
KB		 1995 list_add_tail(&device->delete_list_entry, &delete_list);
1996 }
1997 }
1998
1999 /* Process all new devices. */
2000 for (i = 0; i < num_new_devices; i++) {
2001 device = new_device_list[i];
2002 if (!device->new_device)
2003 continue;
2004 if (device->volume_offline)
2005 continue;
2006 list_add_tail(&device->scsi_device_list_entry,
2007 &ctrl_info->scsi_device_list);
2008 list_add_tail(&device->add_list_entry, &add_list);
2009 /* To prevent this device structure from being freed later. */
2010 device->keep_device = true;
2011 }
2012
6c223761
KB		 2013 spin_unlock_irqrestore(&ctrl_info->scsi_device_list_lock, flags);
2014
2790cd4d
KB		 2015 /*
2016 * If OFA is in progress and there are devices that need to be deleted,
2017 * allow any pending reset operations to continue and unblock any SCSI
2018 * requests before removal.
2019 */
2020 if (pqi_ofa_in_progress(ctrl_info)) {
2021 list_for_each_entry_safe(device, next, &delete_list, delete_list_entry)
2022 if (pqi_is_device_added(device))
2023 pqi_device_remove_start(device);
2024 pqi_ctrl_unblock_device_reset(ctrl_info);
2025 pqi_scsi_unblock_requests(ctrl_info);
2026 }
4fd22c13 2027
6c223761 2028 /* Remove all devices that have gone away. */
4d15ad38 2029 list_for_each_entry_safe(device, next, &delete_list, delete_list_entry) {
6c223761
KB		 2030 if (device->volume_offline) {
2031 pqi_dev_info(ctrl_info, "offline", device);
2032 pqi_show_volume_status(ctrl_info, device);
6c223761
KB		 2033 }
2034 list_del(&device->delete_list_entry);
4d15ad38
KB		 2035 if (pqi_is_device_added(device)) {
2036 pqi_remove_device(ctrl_info, device);
2037 } else {
2038 if (!device->volume_offline)
2039 pqi_dev_info(ctrl_info, "removed", device);
2040 pqi_free_device(device);
2041 }
6c223761
KB		 2042 }
2043
2044 /*
2045 * Notify the SCSI ML if the queue depth of any existing device has
2046 * changed.
2047 */
583891c9
KB		 2048 list_for_each_entry(device, &ctrl_info->scsi_device_list, scsi_device_list_entry) {
2049 if (device->sdev && device->queue_depth != device->advertised_queue_depth) {
2050 device->advertised_queue_depth = device->queue_depth;
2051 scsi_change_queue_depth(device->sdev, device->advertised_queue_depth);
244ca45e
MR		 2052 if (device->rescan) {
2053 scsi_rescan_device(&device->sdev->sdev_gendev);
2054 device->rescan = false;
2055 }
6c223761
KB		 2056 }
2057 }
2058
2059 /* Expose any new devices. */
2060 list_for_each_entry_safe(device, next, &add_list, add_list_entry) {
3d46a59a 2061 if (!pqi_is_device_added(device)) {
6c223761 2062 rc = pqi_add_device(ctrl_info, device);
ce143793
KB		 2063 if (rc == 0) {
2064 pqi_dev_info(ctrl_info, "added", device);
2065 } else {
6c223761
KB		 2066 dev_warn(&ctrl_info->pci_dev->dev,
2067 "scsi %d:%d:%d:%d addition failed, device not added\n",
2068 ctrl_info->scsi_host->host_no,
2069 device->bus, device->target,
2070 device->lun);
2071 pqi_fixup_botched_add(ctrl_info, device);
6c223761
KB		 2072 }
2073 }
6c223761
KB		 2074 }
2075}
2076
ce143793 2077static inline bool pqi_is_supported_device(struct pqi_scsi_dev *device)
6c223761 2078{
ce143793
KB		 2079 /*
2080 * Only support the HBA controller itself as a RAID
2081 * controller. If it's a RAID controller other than
2082 * the HBA itself (an external RAID controller, for
2083 * example), we don't support it.
2084 */
2085 if (device->device_type == SA_DEVICE_TYPE_CONTROLLER &&
2086 !pqi_is_hba_lunid(device->scsi3addr))
583891c9 2087 return false;
6c223761 2088
ce143793 2089 return true;
6c223761
KB		 2090}
2091
94086f5b 2092static inline bool pqi_skip_device(u8 *scsi3addr)
6c223761 2093{
94086f5b
KB		 2094 /* Ignore all masked devices. */
2095 if (MASKED_DEVICE(scsi3addr))
6c223761 2096 return true;
6c223761
KB		 2097
2098 return false;
2099}
2100
522bc026
DC		 2101static inline void pqi_mask_device(u8 *scsi3addr)
2102{
2103 scsi3addr[3] |= 0xc0;
2104}
2105
3d46a59a
DB		 2106static inline bool pqi_is_device_with_sas_address(struct pqi_scsi_dev *device)
2107{
ce143793
KB		 2108 switch (device->device_type) {
2109 case SA_DEVICE_TYPE_SAS:
2110 case SA_DEVICE_TYPE_EXPANDER_SMP:
2111 case SA_DEVICE_TYPE_SES:
3d46a59a
DB		 2112 return true;
2113 }
2114
2115 return false;
2116}
2117
cd128244
DC		 2118static inline bool pqi_expose_device(struct pqi_scsi_dev *device)
2119{
583891c9 2120 return !device->is_physical_device || !pqi_skip_device(device->scsi3addr);
cd128244
DC		 2121}
2122
7a84a821
KB		 2123static inline void pqi_set_physical_device_wwid(struct pqi_ctrl_info *ctrl_info,
2124 struct pqi_scsi_dev *device, struct report_phys_lun_extended_entry *phys_lun_ext_entry)
2125{
2126 if (ctrl_info->unique_wwid_in_report_phys_lun_supported ||
2127 pqi_is_device_with_sas_address(device))
2128 device->wwid = phys_lun_ext_entry->wwid;
2129 else
2130 device->wwid = cpu_to_be64(get_unaligned_be64(&device->page_83_identifier));
2131}
2132
6c223761
KB		 2133static int pqi_update_scsi_devices(struct pqi_ctrl_info *ctrl_info)
2134{
2135 int i;
2136 int rc;
8a994a04 2137 LIST_HEAD(new_device_list_head);
6c223761
KB		 2138 struct report_phys_lun_extended *physdev_list = NULL;
2139 struct report_log_lun_extended *logdev_list = NULL;
2140 struct report_phys_lun_extended_entry *phys_lun_ext_entry;
2141 struct report_log_lun_extended_entry *log_lun_ext_entry;
2142 struct bmic_identify_physical_device *id_phys = NULL;
2143 u32 num_physicals;
2144 u32 num_logicals;
2145 struct pqi_scsi_dev **new_device_list = NULL;
2146 struct pqi_scsi_dev *device;
2147 struct pqi_scsi_dev *next;
2148 unsigned int num_new_devices;
2149 unsigned int num_valid_devices;
2150 bool is_physical_device;
2151 u8 *scsi3addr;
5e6a9760
GW		 2152 unsigned int physical_index;
2153 unsigned int logical_index;
6c223761 2154 static char *out_of_memory_msg =
6de783f6 2155 "failed to allocate memory, device discovery stopped";
6c223761 2156
6c223761
KB		 2157 rc = pqi_get_device_lists(ctrl_info, &physdev_list, &logdev_list);
2158 if (rc)
2159 goto out;
2160
2161 if (physdev_list)
2162 num_physicals =
2163 get_unaligned_be32(&physdev_list->header.list_length)
2164 / sizeof(physdev_list->lun_entries[0]);
2165 else
2166 num_physicals = 0;
2167
2168 if (logdev_list)
2169 num_logicals =
2170 get_unaligned_be32(&logdev_list->header.list_length)
2171 / sizeof(logdev_list->lun_entries[0]);
2172 else
2173 num_logicals = 0;
2174
2175 if (num_physicals) {
2176 /*
2177 * We need this buffer for calls to pqi_get_physical_disk_info()
2178 * below. We allocate it here instead of inside
2179 * pqi_get_physical_disk_info() because it's a fairly large
2180 * buffer.
2181 */
2182 id_phys = kmalloc(sizeof(*id_phys), GFP_KERNEL);
2183 if (!id_phys) {
2184 dev_warn(&ctrl_info->pci_dev->dev, "%s\n",
2185 out_of_memory_msg);
2186 rc = -ENOMEM;
2187 goto out;
2188 }
522bc026 2189
694c5d5b 2190 if (pqi_hide_vsep) {
522bc026
DC		 2191 for (i = num_physicals - 1; i >= 0; i--) {
2192 phys_lun_ext_entry =
2193 &physdev_list->lun_entries[i];
583891c9
KB		 2194 if (CISS_GET_DRIVE_NUMBER(phys_lun_ext_entry->lunid) == PQI_VSEP_CISS_BTL) {
2195 pqi_mask_device(phys_lun_ext_entry->lunid);
522bc026
DC		 2196 break;
2197 }
2198 }
2199 }
6c223761
KB		 2200 }
2201
f6cc2a77
KB		 2202 if (num_logicals &&
2203 (logdev_list->header.flags & CISS_REPORT_LOG_FLAG_DRIVE_TYPE_MIX))
2204 ctrl_info->lv_drive_type_mix_valid = true;
2205
6c223761
KB		 2206 num_new_devices = num_physicals + num_logicals;
2207
6da2ec56
KC		 2208 new_device_list = kmalloc_array(num_new_devices,
2209 sizeof(*new_device_list),
2210 GFP_KERNEL);
6c223761
KB		 2211 if (!new_device_list) {
2212 dev_warn(&ctrl_info->pci_dev->dev, "%s\n", out_of_memory_msg);
2213 rc = -ENOMEM;
2214 goto out;
2215 }
2216
2217 for (i = 0; i < num_new_devices; i++) {
2218 device = kzalloc(sizeof(*device), GFP_KERNEL);
2219 if (!device) {
2220 dev_warn(&ctrl_info->pci_dev->dev, "%s\n",
2221 out_of_memory_msg);
2222 rc = -ENOMEM;
2223 goto out;
2224 }
2225 list_add_tail(&device->new_device_list_entry,
2226 &new_device_list_head);
2227 }
2228
2229 device = NULL;
2230 num_valid_devices = 0;
5e6a9760
GW		 2231 physical_index = 0;
2232 logical_index = 0;
6c223761
KB		 2233
2234 for (i = 0; i < num_new_devices; i++) {
2235
5e6a9760
GW		 2236 if ((!pqi_expose_ld_first && i < num_physicals) ||
2237 (pqi_expose_ld_first && i >= num_logicals)) {
6c223761 2238 is_physical_device = true;
5e6a9760
GW		 2239 phys_lun_ext_entry =
2240 &physdev_list->lun_entries[physical_index++];
6c223761
KB		 2241 log_lun_ext_entry = NULL;
2242 scsi3addr = phys_lun_ext_entry->lunid;
2243 } else {
2244 is_physical_device = false;
2245 phys_lun_ext_entry = NULL;
2246 log_lun_ext_entry =
5e6a9760 2247 &logdev_list->lun_entries[logical_index++];
6c223761
KB		 2248 scsi3addr = log_lun_ext_entry->lunid;
2249 }
2250
94086f5b 2251 if (is_physical_device && pqi_skip_device(scsi3addr))
6c223761
KB		 2252 continue;
2253
2254 if (device)
2255 device = list_next_entry(device, new_device_list_entry);
2256 else
2257 device = list_first_entry(&new_device_list_head,
2258 struct pqi_scsi_dev, new_device_list_entry);
2259
2260 memcpy(device->scsi3addr, scsi3addr, sizeof(device->scsi3addr));
2261 device->is_physical_device = is_physical_device;
3d46a59a 2262 if (is_physical_device) {
ce143793
KB		 2263 device->device_type = phys_lun_ext_entry->device_type;
2264 if (device->device_type == SA_DEVICE_TYPE_EXPANDER_SMP)
3d46a59a
DB		 2265 device->is_expander_smp_device = true;
2266 } else {
bd10cf0b
KB		 2267 device->is_external_raid_device =
2268 pqi_is_external_raid_addr(scsi3addr);
3d46a59a 2269 }
6c223761 2270
ce143793
KB		 2271 if (!pqi_is_supported_device(device))
2272 continue;
2273
6c223761 2274 /* Gather information about the device. */
ce143793 2275 rc = pqi_get_device_info(ctrl_info, device, id_phys);
6c223761
KB		 2276 if (rc == -ENOMEM) {
2277 dev_warn(&ctrl_info->pci_dev->dev, "%s\n",
2278 out_of_memory_msg);
2279 goto out;
2280 }
2281 if (rc) {
6de783f6
KB		 2282 if (device->is_physical_device)
2283 dev_warn(&ctrl_info->pci_dev->dev,
2284 "obtaining device info failed, skipping physical device %016llx\n",
583891c9 2285 get_unaligned_be64(&phys_lun_ext_entry->wwid));
6de783f6
KB		 2286 else
2287 dev_warn(&ctrl_info->pci_dev->dev,
2288 "obtaining device info failed, skipping logical device %08x%08x\n",
2289 *((u32 *)&device->scsi3addr),
2290 *((u32 *)&device->scsi3addr[4]));
6c223761
KB		 2291 rc = 0;
2292 continue;
2293 }
2294
6c223761
KB		 2295 pqi_assign_bus_target_lun(device);
2296
6c223761 2297 if (device->is_physical_device) {
7a84a821 2298 pqi_set_physical_device_wwid(ctrl_info, device, phys_lun_ext_entry);
6c223761 2299 if ((phys_lun_ext_entry->device_flags &
694c5d5b 2300 CISS_REPORT_PHYS_DEV_FLAG_AIO_ENABLED) &&
3d46a59a 2301 phys_lun_ext_entry->aio_handle) {
583891c9
KB		 2302 device->aio_enabled = true;
2303 device->aio_handle =
2304 phys_lun_ext_entry->aio_handle;
3d46a59a 2305 }
6c223761
KB		 2306 } else {
2307 memcpy(device->volume_id, log_lun_ext_entry->volume_id,
2308 sizeof(device->volume_id));
2309 }
2310
3d46a59a
DB		 2311 if (pqi_is_device_with_sas_address(device))
2312 device->sas_address = get_unaligned_be64(&device->wwid);
6c223761
KB		 2313
2314 new_device_list[num_valid_devices++] = device;
2315 }
2316
2317 pqi_update_device_list(ctrl_info, new_device_list, num_valid_devices);
2318
2319out:
2320 list_for_each_entry_safe(device, next, &new_device_list_head,
2321 new_device_list_entry) {
2322 if (device->keep_device)
2323 continue;
2324 list_del(&device->new_device_list_entry);
2325 pqi_free_device(device);
2326 }
2327
2328 kfree(new_device_list);
2329 kfree(physdev_list);
2330 kfree(logdev_list);
2331 kfree(id_phys);
2332
2333 return rc;
2334}
2335
6c223761
KB		 2336static int pqi_scan_scsi_devices(struct pqi_ctrl_info *ctrl_info)
2337{
66f1c2b4
KB		 2338 int rc;
2339 int mutex_acquired;
6c223761
KB		 2340
2341 if (pqi_ctrl_offline(ctrl_info))
2342 return -ENXIO;
2343
66f1c2b4
KB		 2344 mutex_acquired = mutex_trylock(&ctrl_info->scan_mutex);
2345
2346 if (!mutex_acquired) {
2347 if (pqi_ctrl_scan_blocked(ctrl_info))
2348 return -EBUSY;
5f310425 2349 pqi_schedule_rescan_worker_delayed(ctrl_info);
66f1c2b4 2350 return -EINPROGRESS;
530dd8a7 2351 }
6c223761 2352
66f1c2b4
KB		 2353 rc = pqi_update_scsi_devices(ctrl_info);
2354 if (rc && !pqi_ctrl_scan_blocked(ctrl_info))
2355 pqi_schedule_rescan_worker_delayed(ctrl_info);
2356
2357 mutex_unlock(&ctrl_info->scan_mutex);
2358
6c223761
KB		 2359 return rc;
2360}
2361
2362static void pqi_scan_start(struct Scsi_Host *shost)
2363{
4fd22c13
MR		 2364 struct pqi_ctrl_info *ctrl_info;
2365
2366 ctrl_info = shost_to_hba(shost);
4fd22c13
MR		 2367
2368 pqi_scan_scsi_devices(ctrl_info);
6c223761
KB		 2369}
2370
2371/* Returns TRUE if scan is finished. */
2372
2373static int pqi_scan_finished(struct Scsi_Host *shost,
2374 unsigned long elapsed_time)
2375{
2376 struct pqi_ctrl_info *ctrl_info;
2377
2378 ctrl_info = shost_priv(shost);
2379
2380 return !mutex_is_locked(&ctrl_info->scan_mutex);
2381}
2382
583891c9
KB		 2383static inline void pqi_set_encryption_info(struct pqi_encryption_info *encryption_info,
2384 struct raid_map *raid_map, u64 first_block)
6c223761
KB		 2385{
2386 u32 volume_blk_size;
2387
2388 /*
2389 * Set the encryption tweak values based on logical block address.
2390 * If the block size is 512, the tweak value is equal to the LBA.
2391 * For other block sizes, tweak value is (LBA * block size) / 512.
2392 */
2393 volume_blk_size = get_unaligned_le32(&raid_map->volume_blk_size);
2394 if (volume_blk_size != 512)
2395 first_block = (first_block * volume_blk_size) / 512;
2396
2397 encryption_info->data_encryption_key_index =
2398 get_unaligned_le16(&raid_map->data_encryption_key_index);
2399 encryption_info->encrypt_tweak_lower = lower_32_bits(first_block);
2400 encryption_info->encrypt_tweak_upper = upper_32_bits(first_block);
2401}
2402
2403/*
588a63fe 2404 * Attempt to perform RAID bypass mapping for a logical volume I/O.
6c223761
KB		 2405 */
2406
6702d2c4
DB		 2407static bool pqi_aio_raid_level_supported(struct pqi_ctrl_info *ctrl_info,
2408 struct pqi_scsi_dev_raid_map_data *rmd)
281a817f
DB		 2409{
2410 bool is_supported = true;
2411
2412 switch (rmd->raid_level) {
2413 case SA_RAID_0:
2414 break;
2415 case SA_RAID_1:
f6cc2a77
KB		 2416 if (rmd->is_write && (!ctrl_info->enable_r1_writes ||
2417 rmd->data_length > ctrl_info->max_write_raid_1_10_2drive))
2418 is_supported = false;
2419 break;
7a012c23 2420 case SA_RAID_TRIPLE:
f6cc2a77
KB		 2421 if (rmd->is_write && (!ctrl_info->enable_r1_writes ||
2422 rmd->data_length > ctrl_info->max_write_raid_1_10_3drive))
281a817f
DB		 2423 is_supported = false;
2424 break;
2425 case SA_RAID_5:
f6cc2a77
KB		 2426 if (rmd->is_write && (!ctrl_info->enable_r5_writes ||
2427 rmd->data_length > ctrl_info->max_write_raid_5_6))
6702d2c4
DB		 2428 is_supported = false;
2429 break;
281a817f 2430 case SA_RAID_6:
f6cc2a77
KB		 2431 if (rmd->is_write && (!ctrl_info->enable_r6_writes ||
2432 rmd->data_length > ctrl_info->max_write_raid_5_6))
281a817f
DB		 2433 is_supported = false;
2434 break;
281a817f
DB		 2435 default:
2436 is_supported = false;
f6cc2a77 2437 break;
281a817f
DB		 2438 }
2439
2440 return is_supported;
2441}
2442
6c223761
KB		 2443#define PQI_RAID_BYPASS_INELIGIBLE 1
2444
281a817f 2445static int pqi_get_aio_lba_and_block_count(struct scsi_cmnd *scmd,
583891c9 2446 struct pqi_scsi_dev_raid_map_data *rmd)
6c223761 2447{
6c223761
KB		 2448 /* Check for valid opcode, get LBA and block count. */
2449 switch (scmd->cmnd[0]) {
2450 case WRITE_6:
281a817f 2451 rmd->is_write = true;
df561f66 2452 fallthrough;
6c223761 2453 case READ_6:
281a817f 2454 rmd->first_block = (u64)(((scmd->cmnd[1] & 0x1f) << 16) |
e018ef57 2455 (scmd->cmnd[2] << 8) | scmd->cmnd[3]);
281a817f
DB		 2456 rmd->block_cnt = (u32)scmd->cmnd[4];
2457 if (rmd->block_cnt == 0)
2458 rmd->block_cnt = 256;
6c223761
KB		 2459 break;
2460 case WRITE_10:
281a817f 2461 rmd->is_write = true;
df561f66 2462 fallthrough;
6c223761 2463 case READ_10:
281a817f
DB		 2464 rmd->first_block = (u64)get_unaligned_be32(&scmd->cmnd[2]);
2465 rmd->block_cnt = (u32)get_unaligned_be16(&scmd->cmnd[7]);
6c223761
KB		 2466 break;
2467 case WRITE_12:
281a817f 2468 rmd->is_write = true;
df561f66 2469 fallthrough;
6c223761 2470 case READ_12:
281a817f
DB		 2471 rmd->first_block = (u64)get_unaligned_be32(&scmd->cmnd[2]);
2472 rmd->block_cnt = get_unaligned_be32(&scmd->cmnd[6]);
6c223761
KB		 2473 break;
2474 case WRITE_16:
281a817f 2475 rmd->is_write = true;
df561f66 2476 fallthrough;
6c223761 2477 case READ_16:
281a817f
DB		 2478 rmd->first_block = get_unaligned_be64(&scmd->cmnd[2]);
2479 rmd->block_cnt = get_unaligned_be32(&scmd->cmnd[10]);
6c223761
KB		 2480 break;
2481 default:
2482 /* Process via normal I/O path. */
2483 return PQI_RAID_BYPASS_INELIGIBLE;
2484 }
2485
281a817f 2486 put_unaligned_le32(scsi_bufflen(scmd), &rmd->data_length);
6c223761 2487
281a817f
DB		 2488 return 0;
2489}
6c223761 2490
281a817f 2491static int pci_get_aio_common_raid_map_values(struct pqi_ctrl_info *ctrl_info,
583891c9 2492 struct pqi_scsi_dev_raid_map_data *rmd, struct raid_map *raid_map)
281a817f
DB		 2493{
2494#if BITS_PER_LONG == 32
2495 u64 tmpdiv;
2496#endif
2497
2498 rmd->last_block = rmd->first_block + rmd->block_cnt - 1;
6c223761
KB		 2499
2500 /* Check for invalid block or wraparound. */
281a817f
DB		 2501 if (rmd->last_block >=
2502 get_unaligned_le64(&raid_map->volume_blk_cnt) ||
2503 rmd->last_block < rmd->first_block)
6c223761
KB		 2504 return PQI_RAID_BYPASS_INELIGIBLE;
2505
281a817f 2506 rmd->data_disks_per_row =
583891c9 2507 get_unaligned_le16(&raid_map->data_disks_per_row);
281a817f
DB		 2508 rmd->strip_size = get_unaligned_le16(&raid_map->strip_size);
2509 rmd->layout_map_count = get_unaligned_le16(&raid_map->layout_map_count);
6c223761
KB		 2510
2511 /* Calculate stripe information for the request. */
281a817f 2512 rmd->blocks_per_row = rmd->data_disks_per_row * rmd->strip_size;
6c223761 2513#if BITS_PER_LONG == 32
281a817f
DB		 2514 tmpdiv = rmd->first_block;
2515 do_div(tmpdiv, rmd->blocks_per_row);
2516 rmd->first_row = tmpdiv;
2517 tmpdiv = rmd->last_block;
2518 do_div(tmpdiv, rmd->blocks_per_row);
2519 rmd->last_row = tmpdiv;
2520 rmd->first_row_offset = (u32)(rmd->first_block - (rmd->first_row * rmd->blocks_per_row));
2521 rmd->last_row_offset = (u32)(rmd->last_block - (rmd->last_row * rmd->blocks_per_row));
2522 tmpdiv = rmd->first_row_offset;
2523 do_div(tmpdiv, rmd->strip_size);
2524 rmd->first_column = tmpdiv;
2525 tmpdiv = rmd->last_row_offset;
2526 do_div(tmpdiv, rmd->strip_size);
2527 rmd->last_column = tmpdiv;
6c223761 2528#else
281a817f
DB		 2529 rmd->first_row = rmd->first_block / rmd->blocks_per_row;
2530 rmd->last_row = rmd->last_block / rmd->blocks_per_row;
2531 rmd->first_row_offset = (u32)(rmd->first_block -
583891c9 2532 (rmd->first_row * rmd->blocks_per_row));
281a817f 2533 rmd->last_row_offset = (u32)(rmd->last_block - (rmd->last_row *
583891c9 2534 rmd->blocks_per_row));
281a817f
DB		 2535 rmd->first_column = rmd->first_row_offset / rmd->strip_size;
2536 rmd->last_column = rmd->last_row_offset / rmd->strip_size;
6c223761
KB		 2537#endif
2538
2539 /* If this isn't a single row/column then give to the controller. */
281a817f 2540 if (rmd->first_row != rmd->last_row ||
583891c9 2541 rmd->first_column != rmd->last_column)
6c223761
KB		 2542 return PQI_RAID_BYPASS_INELIGIBLE;
2543
2544 /* Proceeding with driver mapping. */
281a817f 2545 rmd->total_disks_per_row = rmd->data_disks_per_row +
6c223761 2546 get_unaligned_le16(&raid_map->metadata_disks_per_row);
281a817f
DB		 2547 rmd->map_row = ((u32)(rmd->first_row >>
2548 raid_map->parity_rotation_shift)) %
6c223761 2549 get_unaligned_le16(&raid_map->row_cnt);
281a817f 2550 rmd->map_index = (rmd->map_row * rmd->total_disks_per_row) +
583891c9 2551 rmd->first_column;
6c223761 2552
281a817f
DB		 2553 return 0;
2554}
2555
281a817f 2556static int pqi_calc_aio_r5_or_r6(struct pqi_scsi_dev_raid_map_data *rmd,
583891c9 2557 struct raid_map *raid_map)
281a817f
DB		 2558{
2559#if BITS_PER_LONG == 32
2560 u64 tmpdiv;
2561#endif
2562 /* RAID 50/60 */
583891c9 2563 /* Verify first and last block are in same RAID group. */
281a817f 2564 rmd->stripesize = rmd->blocks_per_row * rmd->layout_map_count;
6c223761 2565#if BITS_PER_LONG == 32
281a817f
DB		 2566 tmpdiv = rmd->first_block;
2567 rmd->first_group = do_div(tmpdiv, rmd->stripesize);
2568 tmpdiv = rmd->first_group;
2569 do_div(tmpdiv, rmd->blocks_per_row);
2570 rmd->first_group = tmpdiv;
2571 tmpdiv = rmd->last_block;
2572 rmd->last_group = do_div(tmpdiv, rmd->stripesize);
2573 tmpdiv = rmd->last_group;
2574 do_div(tmpdiv, rmd->blocks_per_row);
2575 rmd->last_group = tmpdiv;
6c223761 2576#else
281a817f
DB		 2577 rmd->first_group = (rmd->first_block % rmd->stripesize) / rmd->blocks_per_row;
2578 rmd->last_group = (rmd->last_block % rmd->stripesize) / rmd->blocks_per_row;
6c223761 2579#endif
281a817f
DB		 2580 if (rmd->first_group != rmd->last_group)
2581 return PQI_RAID_BYPASS_INELIGIBLE;
6c223761 2582
583891c9 2583 /* Verify request is in a single row of RAID 5/6. */
6c223761 2584#if BITS_PER_LONG == 32
281a817f
DB		 2585 tmpdiv = rmd->first_block;
2586 do_div(tmpdiv, rmd->stripesize);
2587 rmd->first_row = tmpdiv;
2588 rmd->r5or6_first_row = tmpdiv;
2589 tmpdiv = rmd->last_block;
2590 do_div(tmpdiv, rmd->stripesize);
2591 rmd->r5or6_last_row = tmpdiv;
6c223761 2592#else
281a817f
DB		 2593 rmd->first_row = rmd->r5or6_first_row =
2594 rmd->first_block / rmd->stripesize;
2595 rmd->r5or6_last_row = rmd->last_block / rmd->stripesize;
6c223761 2596#endif
281a817f
DB		 2597 if (rmd->r5or6_first_row != rmd->r5or6_last_row)
2598 return PQI_RAID_BYPASS_INELIGIBLE;
6c223761 2599
583891c9 2600 /* Verify request is in a single column. */
6c223761 2601#if BITS_PER_LONG == 32
281a817f
DB		 2602 tmpdiv = rmd->first_block;
2603 rmd->first_row_offset = do_div(tmpdiv, rmd->stripesize);
2604 tmpdiv = rmd->first_row_offset;
2605 rmd->first_row_offset = (u32)do_div(tmpdiv, rmd->blocks_per_row);
2606 rmd->r5or6_first_row_offset = rmd->first_row_offset;
2607 tmpdiv = rmd->last_block;
2608 rmd->r5or6_last_row_offset = do_div(tmpdiv, rmd->stripesize);
2609 tmpdiv = rmd->r5or6_last_row_offset;
2610 rmd->r5or6_last_row_offset = do_div(tmpdiv, rmd->blocks_per_row);
2611 tmpdiv = rmd->r5or6_first_row_offset;
2612 do_div(tmpdiv, rmd->strip_size);
2613 rmd->first_column = rmd->r5or6_first_column = tmpdiv;
2614 tmpdiv = rmd->r5or6_last_row_offset;
2615 do_div(tmpdiv, rmd->strip_size);
2616 rmd->r5or6_last_column = tmpdiv;
6c223761 2617#else
281a817f 2618 rmd->first_row_offset = rmd->r5or6_first_row_offset =
583891c9
KB		 2619 (u32)((rmd->first_block % rmd->stripesize) %
2620 rmd->blocks_per_row);
281a817f
DB		 2621
2622 rmd->r5or6_last_row_offset =
2623 (u32)((rmd->last_block % rmd->stripesize) %
2624 rmd->blocks_per_row);
2625
2626 rmd->first_column =
583891c9 2627 rmd->r5or6_first_row_offset / rmd->strip_size;
281a817f
DB		 2628 rmd->r5or6_first_column = rmd->first_column;
2629 rmd->r5or6_last_column = rmd->r5or6_last_row_offset / rmd->strip_size;
2630#endif
2631 if (rmd->r5or6_first_column != rmd->r5or6_last_column)
2632 return PQI_RAID_BYPASS_INELIGIBLE;
2633
583891c9 2634 /* Request is eligible. */
281a817f
DB		 2635 rmd->map_row =
2636 ((u32)(rmd->first_row >> raid_map->parity_rotation_shift)) %
2637 get_unaligned_le16(&raid_map->row_cnt);
6c223761 2638
281a817f
DB		 2639 rmd->map_index = (rmd->first_group *
2640 (get_unaligned_le16(&raid_map->row_cnt) *
2641 rmd->total_disks_per_row)) +
2642 (rmd->map_row * rmd->total_disks_per_row) + rmd->first_column;
6c223761 2643
6702d2c4
DB		 2644 if (rmd->is_write) {
2645 u32 index;
2646
2647 /*
2648 * p_parity_it_nexus and q_parity_it_nexus are pointers to the
2649 * parity entries inside the device's raid_map.
2650 *
2651 * A device's RAID map is bounded by: number of RAID disks squared.
2652 *
2653 * The devices RAID map size is checked during device
2654 * initialization.
2655 */
2656 index = DIV_ROUND_UP(rmd->map_index + 1, rmd->total_disks_per_row);
2657 index *= rmd->total_disks_per_row;
2658 index -= get_unaligned_le16(&raid_map->metadata_disks_per_row);
2659
2660 rmd->p_parity_it_nexus = raid_map->disk_data[index].aio_handle;
2661 if (rmd->raid_level == SA_RAID_6) {
2662 rmd->q_parity_it_nexus = raid_map->disk_data[index + 1].aio_handle;
2663 rmd->xor_mult = raid_map->disk_data[rmd->map_index].xor_mult[1];
2664 }
2665 if (rmd->blocks_per_row == 0)
2666 return PQI_RAID_BYPASS_INELIGIBLE;
2667#if BITS_PER_LONG == 32
2668 tmpdiv = rmd->first_block;
2669 do_div(tmpdiv, rmd->blocks_per_row);
2670 rmd->row = tmpdiv;
2671#else
2672 rmd->row = rmd->first_block / rmd->blocks_per_row;
2673#endif
2674 }
2675
281a817f
DB		 2676 return 0;
2677}
2678
2679static void pqi_set_aio_cdb(struct pqi_scsi_dev_raid_map_data *rmd)
2680{
2681 /* Build the new CDB for the physical disk I/O. */
2682 if (rmd->disk_block > 0xffffffff) {
2683 rmd->cdb[0] = rmd->is_write ? WRITE_16 : READ_16;
2684 rmd->cdb[1] = 0;
2685 put_unaligned_be64(rmd->disk_block, &rmd->cdb[2]);
2686 put_unaligned_be32(rmd->disk_block_cnt, &rmd->cdb[10]);
2687 rmd->cdb[14] = 0;
2688 rmd->cdb[15] = 0;
2689 rmd->cdb_length = 16;
2690 } else {
2691 rmd->cdb[0] = rmd->is_write ? WRITE_10 : READ_10;
2692 rmd->cdb[1] = 0;
2693 put_unaligned_be32((u32)rmd->disk_block, &rmd->cdb[2]);
2694 rmd->cdb[6] = 0;
2695 put_unaligned_be16((u16)rmd->disk_block_cnt, &rmd->cdb[7]);
2696 rmd->cdb[9] = 0;
2697 rmd->cdb_length = 10;
2698 }
2699}
2700
7a012c23 2701static void pqi_calc_aio_r1_nexus(struct raid_map *raid_map,
583891c9 2702 struct pqi_scsi_dev_raid_map_data *rmd)
7a012c23
DB		 2703{
2704 u32 index;
2705 u32 group;
2706
2707 group = rmd->map_index / rmd->data_disks_per_row;
2708
2709 index = rmd->map_index - (group * rmd->data_disks_per_row);
2710 rmd->it_nexus[0] = raid_map->disk_data[index].aio_handle;
2711 index += rmd->data_disks_per_row;
2712 rmd->it_nexus[1] = raid_map->disk_data[index].aio_handle;
2713 if (rmd->layout_map_count > 2) {
2714 index += rmd->data_disks_per_row;
2715 rmd->it_nexus[2] = raid_map->disk_data[index].aio_handle;
2716 }
2717
2718 rmd->num_it_nexus_entries = rmd->layout_map_count;
2719}
2720
281a817f
DB		 2721static int pqi_raid_bypass_submit_scsi_cmd(struct pqi_ctrl_info *ctrl_info,
2722 struct pqi_scsi_dev *device, struct scsi_cmnd *scmd,
2723 struct pqi_queue_group *queue_group)
2724{
281a817f 2725 int rc;
7a012c23
DB		 2726 struct raid_map *raid_map;
2727 u32 group;
2728 u32 next_bypass_group;
281a817f
DB		 2729 struct pqi_encryption_info *encryption_info_ptr;
2730 struct pqi_encryption_info encryption_info;
583891c9 2731 struct pqi_scsi_dev_raid_map_data rmd = { 0 };
281a817f
DB		 2732
2733 rc = pqi_get_aio_lba_and_block_count(scmd, &rmd);
2734 if (rc)
2735 return PQI_RAID_BYPASS_INELIGIBLE;
2736
2737 rmd.raid_level = device->raid_level;
2738
6702d2c4 2739 if (!pqi_aio_raid_level_supported(ctrl_info, &rmd))
281a817f
DB		 2740 return PQI_RAID_BYPASS_INELIGIBLE;
2741
2742 if (unlikely(rmd.block_cnt == 0))
2743 return PQI_RAID_BYPASS_INELIGIBLE;
2744
2745 raid_map = device->raid_map;
6c223761 2746
281a817f
DB		 2747 rc = pci_get_aio_common_raid_map_values(ctrl_info, &rmd, raid_map);
2748 if (rc)
2749 return PQI_RAID_BYPASS_INELIGIBLE;
6c223761 2750
7a012c23
DB		 2751 if (device->raid_level == SA_RAID_1 ||
2752 device->raid_level == SA_RAID_TRIPLE) {
2753 if (rmd.is_write) {
2754 pqi_calc_aio_r1_nexus(raid_map, &rmd);
2755 } else {
2756 group = device->next_bypass_group;
2757 next_bypass_group = group + 1;
2758 if (next_bypass_group >= rmd.layout_map_count)
2759 next_bypass_group = 0;
2760 device->next_bypass_group = next_bypass_group;
2761 rmd.map_index += group * rmd.data_disks_per_row;
2762 }
281a817f 2763 } else if ((device->raid_level == SA_RAID_5 ||
6702d2c4
DB		 2764 device->raid_level == SA_RAID_6) &&
2765 (rmd.layout_map_count > 1 || rmd.is_write)) {
281a817f
DB		 2766 rc = pqi_calc_aio_r5_or_r6(&rmd, raid_map);
2767 if (rc)
2768 return PQI_RAID_BYPASS_INELIGIBLE;
6c223761
KB		 2769 }
2770
281a817f
DB		 2771 if (unlikely(rmd.map_index >= RAID_MAP_MAX_ENTRIES))
2772 return PQI_RAID_BYPASS_INELIGIBLE;
2773
2774 rmd.aio_handle = raid_map->disk_data[rmd.map_index].aio_handle;
2775 rmd.disk_block = get_unaligned_le64(&raid_map->disk_starting_blk) +
2776 rmd.first_row * rmd.strip_size +
2777 (rmd.first_row_offset - rmd.first_column * rmd.strip_size);
2778 rmd.disk_block_cnt = rmd.block_cnt;
6c223761
KB		 2779
2780 /* Handle differing logical/physical block sizes. */
2781 if (raid_map->phys_blk_shift) {
281a817f
DB		 2782 rmd.disk_block <<= raid_map->phys_blk_shift;
2783 rmd.disk_block_cnt <<= raid_map->phys_blk_shift;
6c223761
KB		 2784 }
2785
281a817f 2786 if (unlikely(rmd.disk_block_cnt > 0xffff))
6c223761
KB		 2787 return PQI_RAID_BYPASS_INELIGIBLE;
2788
281a817f 2789 pqi_set_aio_cdb(&rmd);
6c223761 2790
583891c9 2791 if (get_unaligned_le16(&raid_map->flags) & RAID_MAP_ENCRYPTION_ENABLED) {
f6cc2a77
KB		 2792 if (rmd.data_length > device->max_transfer_encrypted)
2793 return PQI_RAID_BYPASS_INELIGIBLE;
583891c9 2794 pqi_set_encryption_info(&encryption_info, raid_map, rmd.first_block);
6c223761
KB		 2795 encryption_info_ptr = &encryption_info;
2796 } else {
2797 encryption_info_ptr = NULL;
2798 }
2799
6702d2c4
DB		 2800 if (rmd.is_write) {
2801 switch (device->raid_level) {
7a012c23
DB		 2802 case SA_RAID_1:
2803 case SA_RAID_TRIPLE:
2804 return pqi_aio_submit_r1_write_io(ctrl_info, scmd, queue_group,
2805 encryption_info_ptr, device, &rmd);
6702d2c4
DB		 2806 case SA_RAID_5:
2807 case SA_RAID_6:
2808 return pqi_aio_submit_r56_write_io(ctrl_info, scmd, queue_group,
583891c9 2809 encryption_info_ptr, device, &rmd);
6702d2c4 2810 }
6702d2c4
DB		 2811 }
2812
f6cc2a77
KB		 2813 return pqi_aio_submit_io(ctrl_info, scmd, rmd.aio_handle,
2814 rmd.cdb, rmd.cdb_length, queue_group,
2815 encryption_info_ptr, true);
6c223761
KB		 2816}
2817
2818#define PQI_STATUS_IDLE 0x0
2819
2820#define PQI_CREATE_ADMIN_QUEUE_PAIR 1
2821#define PQI_DELETE_ADMIN_QUEUE_PAIR 2
2822
2823#define PQI_DEVICE_STATE_POWER_ON_AND_RESET 0x0
2824#define PQI_DEVICE_STATE_STATUS_AVAILABLE 0x1
2825#define PQI_DEVICE_STATE_ALL_REGISTERS_READY 0x2
2826#define PQI_DEVICE_STATE_ADMIN_QUEUE_PAIR_READY 0x3
2827#define PQI_DEVICE_STATE_ERROR 0x4
2828
2829#define PQI_MODE_READY_TIMEOUT_SECS 30
2830#define PQI_MODE_READY_POLL_INTERVAL_MSECS 1
2831
2832static int pqi_wait_for_pqi_mode_ready(struct pqi_ctrl_info *ctrl_info)
2833{
2834 struct pqi_device_registers __iomem *pqi_registers;
2835 unsigned long timeout;
2836 u64 signature;
2837 u8 status;
2838
2839 pqi_registers = ctrl_info->pqi_registers;
4fd22c13 2840 timeout = (PQI_MODE_READY_TIMEOUT_SECS * PQI_HZ) + jiffies;
6c223761
KB		 2841
2842 while (1) {
2843 signature = readq(&pqi_registers->signature);
2844 if (memcmp(&signature, PQI_DEVICE_SIGNATURE,
2845 sizeof(signature)) == 0)
2846 break;
2847 if (time_after(jiffies, timeout)) {
2848 dev_err(&ctrl_info->pci_dev->dev,
2849 "timed out waiting for PQI signature\n");
2850 return -ETIMEDOUT;
2851 }
2852 msleep(PQI_MODE_READY_POLL_INTERVAL_MSECS);
2853 }
2854
2855 while (1) {
2856 status = readb(&pqi_registers->function_and_status_code);
2857 if (status == PQI_STATUS_IDLE)
2858 break;
2859 if (time_after(jiffies, timeout)) {
2860 dev_err(&ctrl_info->pci_dev->dev,
2861 "timed out waiting for PQI IDLE\n");
2862 return -ETIMEDOUT;
2863 }
2864 msleep(PQI_MODE_READY_POLL_INTERVAL_MSECS);
2865 }
2866
2867 while (1) {
2868 if (readl(&pqi_registers->device_status) ==
2869 PQI_DEVICE_STATE_ALL_REGISTERS_READY)
2870 break;
2871 if (time_after(jiffies, timeout)) {
2872 dev_err(&ctrl_info->pci_dev->dev,
2873 "timed out waiting for PQI all registers ready\n");
2874 return -ETIMEDOUT;
2875 }
2876 msleep(PQI_MODE_READY_POLL_INTERVAL_MSECS);
2877 }
2878
2879 return 0;
2880}
2881
2882static inline void pqi_aio_path_disabled(struct pqi_io_request *io_request)
2883{
2884 struct pqi_scsi_dev *device;
2885
2886 device = io_request->scmd->device->hostdata;
588a63fe 2887 device->raid_bypass_enabled = false;
376fb880 2888 device->aio_enabled = false;
6c223761
KB		 2889}
2890
d87d5474 2891static inline void pqi_take_device_offline(struct scsi_device *sdev, char *path)
6c223761
KB		 2892{
2893 struct pqi_ctrl_info *ctrl_info;
e58081a7 2894 struct pqi_scsi_dev *device;
6c223761 2895
03b288cf
KB		 2896 device = sdev->hostdata;
2897 if (device->device_offline)
2898 return;
2899
2900 device->device_offline = true;
03b288cf
KB		 2901 ctrl_info = shost_to_hba(sdev->host);
2902 pqi_schedule_rescan_worker(ctrl_info);
a9a68101 2903 dev_err(&ctrl_info->pci_dev->dev, "re-scanning %s scsi %d:%d:%d:%d\n",
03b288cf
KB		 2904 path, ctrl_info->scsi_host->host_no, device->bus,
2905 device->target, device->lun);
6c223761
KB		 2906}
2907
2908static void pqi_process_raid_io_error(struct pqi_io_request *io_request)
2909{
2910 u8 scsi_status;
2911 u8 host_byte;
2912 struct scsi_cmnd *scmd;
2913 struct pqi_raid_error_info *error_info;
2914 size_t sense_data_length;
2915 int residual_count;
2916 int xfer_count;
2917 struct scsi_sense_hdr sshdr;
2918
2919 scmd = io_request->scmd;
2920 if (!scmd)
2921 return;
2922
2923 error_info = io_request->error_info;
2924 scsi_status = error_info->status;
2925 host_byte = DID_OK;
2926
f5b63206
KB		 2927 switch (error_info->data_out_result) {
2928 case PQI_DATA_IN_OUT_GOOD:
2929 break;
2930 case PQI_DATA_IN_OUT_UNDERFLOW:
6c223761
KB		 2931 xfer_count =
2932 get_unaligned_le32(&error_info->data_out_transferred);
2933 residual_count = scsi_bufflen(scmd) - xfer_count;
2934 scsi_set_resid(scmd, residual_count);
2935 if (xfer_count < scmd->underflow)
2936 host_byte = DID_SOFT_ERROR;
f5b63206
KB		 2937 break;
2938 case PQI_DATA_IN_OUT_UNSOLICITED_ABORT:
2939 case PQI_DATA_IN_OUT_ABORTED:
2940 host_byte = DID_ABORT;
2941 break;
2942 case PQI_DATA_IN_OUT_TIMEOUT:
2943 host_byte = DID_TIME_OUT;
2944 break;
2945 case PQI_DATA_IN_OUT_BUFFER_OVERFLOW:
2946 case PQI_DATA_IN_OUT_PROTOCOL_ERROR:
2947 case PQI_DATA_IN_OUT_BUFFER_ERROR:
2948 case PQI_DATA_IN_OUT_BUFFER_OVERFLOW_DESCRIPTOR_AREA:
2949 case PQI_DATA_IN_OUT_BUFFER_OVERFLOW_BRIDGE:
2950 case PQI_DATA_IN_OUT_ERROR:
2951 case PQI_DATA_IN_OUT_HARDWARE_ERROR:
2952 case PQI_DATA_IN_OUT_PCIE_FABRIC_ERROR:
2953 case PQI_DATA_IN_OUT_PCIE_COMPLETION_TIMEOUT:
2954 case PQI_DATA_IN_OUT_PCIE_COMPLETER_ABORT_RECEIVED:
2955 case PQI_DATA_IN_OUT_PCIE_UNSUPPORTED_REQUEST_RECEIVED:
2956 case PQI_DATA_IN_OUT_PCIE_ECRC_CHECK_FAILED:
2957 case PQI_DATA_IN_OUT_PCIE_UNSUPPORTED_REQUEST:
2958 case PQI_DATA_IN_OUT_PCIE_ACS_VIOLATION:
2959 case PQI_DATA_IN_OUT_PCIE_TLP_PREFIX_BLOCKED:
2960 case PQI_DATA_IN_OUT_PCIE_POISONED_MEMORY_READ:
2961 default:
2962 host_byte = DID_ERROR;
2963 break;
6c223761
KB		 2964 }
2965
2966 sense_data_length = get_unaligned_le16(&error_info->sense_data_length);
2967 if (sense_data_length == 0)
2968 sense_data_length =
2969 get_unaligned_le16(&error_info->response_data_length);
2970 if (sense_data_length) {
2971 if (sense_data_length > sizeof(error_info->data))
2972 sense_data_length = sizeof(error_info->data);
2973
2974 if (scsi_status == SAM_STAT_CHECK_CONDITION &&
2975 scsi_normalize_sense(error_info->data,
2976 sense_data_length, &sshdr) &&
2977 sshdr.sense_key == HARDWARE_ERROR &&
8ef860ae 2978 sshdr.asc == 0x3e) {
441b7195
EV		 2979 struct pqi_ctrl_info *ctrl_info = shost_to_hba(scmd->device->host);
2980 struct pqi_scsi_dev *device = scmd->device->hostdata;
2981
8ef860ae
EV		 2982 switch (sshdr.ascq) {
2983 case 0x1: /* LOGICAL UNIT FAILURE */
2984 if (printk_ratelimit())
2985 scmd_printk(KERN_ERR, scmd, "received 'logical unit failure' from controller for scsi %d:%d:%d:%d\n",
2986 ctrl_info->scsi_host->host_no, device->bus, device->target, device->lun);
2987 pqi_take_device_offline(scmd->device, "RAID");
2988 host_byte = DID_NO_CONNECT;
2989 break;
2990
2991 default: /* See http://www.t10.org/lists/asc-num.htm#ASC_3E */
2992 if (printk_ratelimit())
2993 scmd_printk(KERN_ERR, scmd, "received unhandled error %d from controller for scsi %d:%d:%d:%d\n",
2994 sshdr.ascq, ctrl_info->scsi_host->host_no, device->bus, device->target, device->lun);
2995 break;
2996 }
6c223761
KB		 2997 }
2998
2999 if (sense_data_length > SCSI_SENSE_BUFFERSIZE)
3000 sense_data_length = SCSI_SENSE_BUFFERSIZE;
3001 memcpy(scmd->sense_buffer, error_info->data,
3002 sense_data_length);
3003 }
3004
3005 scmd->result = scsi_status;
3006 set_host_byte(scmd, host_byte);
3007}
3008
3009static void pqi_process_aio_io_error(struct pqi_io_request *io_request)
3010{
3011 u8 scsi_status;
3012 u8 host_byte;
3013 struct scsi_cmnd *scmd;
3014 struct pqi_aio_error_info *error_info;
3015 size_t sense_data_length;
3016 int residual_count;
3017 int xfer_count;
3018 bool device_offline;
3019
3020 scmd = io_request->scmd;
3021 error_info = io_request->error_info;
3022 host_byte = DID_OK;
3023 sense_data_length = 0;
3024 device_offline = false;
3025
3026 switch (error_info->service_response) {
3027 case PQI_AIO_SERV_RESPONSE_COMPLETE:
3028 scsi_status = error_info->status;
3029 break;
3030 case PQI_AIO_SERV_RESPONSE_FAILURE:
3031 switch (error_info->status) {
3032 case PQI_AIO_STATUS_IO_ABORTED:
3033 scsi_status = SAM_STAT_TASK_ABORTED;
3034 break;
3035 case PQI_AIO_STATUS_UNDERRUN:
3036 scsi_status = SAM_STAT_GOOD;
3037 residual_count = get_unaligned_le32(
3038 &error_info->residual_count);
3039 scsi_set_resid(scmd, residual_count);
3040 xfer_count = scsi_bufflen(scmd) - residual_count;
3041 if (xfer_count < scmd->underflow)
3042 host_byte = DID_SOFT_ERROR;
3043 break;
3044 case PQI_AIO_STATUS_OVERRUN:
3045 scsi_status = SAM_STAT_GOOD;
3046 break;
3047 case PQI_AIO_STATUS_AIO_PATH_DISABLED:
3048 pqi_aio_path_disabled(io_request);
3049 scsi_status = SAM_STAT_GOOD;
3050 io_request->status = -EAGAIN;
3051 break;
3052 case PQI_AIO_STATUS_NO_PATH_TO_DEVICE:
3053 case PQI_AIO_STATUS_INVALID_DEVICE:
376fb880
KB		 3054 if (!io_request->raid_bypass) {
3055 device_offline = true;
3056 pqi_take_device_offline(scmd->device, "AIO");
3057 host_byte = DID_NO_CONNECT;
3058 }
6c223761
KB		 3059 scsi_status = SAM_STAT_CHECK_CONDITION;
3060 break;
3061 case PQI_AIO_STATUS_IO_ERROR:
3062 default:
3063 scsi_status = SAM_STAT_CHECK_CONDITION;
3064 break;
3065 }
3066 break;
3067 case PQI_AIO_SERV_RESPONSE_TMF_COMPLETE:
3068 case PQI_AIO_SERV_RESPONSE_TMF_SUCCEEDED:
3069 scsi_status = SAM_STAT_GOOD;
3070 break;
3071 case PQI_AIO_SERV_RESPONSE_TMF_REJECTED:
3072 case PQI_AIO_SERV_RESPONSE_TMF_INCORRECT_LUN:
3073 default:
3074 scsi_status = SAM_STAT_CHECK_CONDITION;
3075 break;
3076 }
3077
3078 if (error_info->data_present) {
3079 sense_data_length =
3080 get_unaligned_le16(&error_info->data_length);
3081 if (sense_data_length) {
3082 if (sense_data_length > sizeof(error_info->data))
3083 sense_data_length = sizeof(error_info->data);
3084 if (sense_data_length > SCSI_SENSE_BUFFERSIZE)
3085 sense_data_length = SCSI_SENSE_BUFFERSIZE;
3086 memcpy(scmd->sense_buffer, error_info->data,
3087 sense_data_length);
3088 }
3089 }
3090
3091 if (device_offline && sense_data_length == 0)
3092 scsi_build_sense_buffer(0, scmd->sense_buffer, HARDWARE_ERROR,
3093 0x3e, 0x1);
3094
3095 scmd->result = scsi_status;
3096 set_host_byte(scmd, host_byte);
3097}
3098
3099static void pqi_process_io_error(unsigned int iu_type,
3100 struct pqi_io_request *io_request)
3101{
3102 switch (iu_type) {
3103 case PQI_RESPONSE_IU_RAID_PATH_IO_ERROR:
3104 pqi_process_raid_io_error(io_request);
3105 break;
3106 case PQI_RESPONSE_IU_AIO_PATH_IO_ERROR:
3107 pqi_process_aio_io_error(io_request);
3108 break;
3109 }
3110}
3111
18ff5f08 3112static int pqi_interpret_task_management_response(struct pqi_ctrl_info *ctrl_info,
6c223761
KB		 3113 struct pqi_task_management_response *response)
3114{
3115 int rc;
3116
3117 switch (response->response_code) {
b17f0486
KB		 3118 case SOP_TMF_COMPLETE:
3119 case SOP_TMF_FUNCTION_SUCCEEDED:
6c223761
KB		 3120 rc = 0;
3121 break;
3406384b
MR		 3122 case SOP_TMF_REJECTED:
3123 rc = -EAGAIN;
3124 break;
6c223761
KB		 3125 default:
3126 rc = -EIO;
3127 break;
3128 }
3129
18ff5f08
KB		 3130 if (rc)
3131 dev_err(&ctrl_info->pci_dev->dev,
3132 "Task Management Function error: %d (response code: %u)\n", rc, response->response_code);
3133
6c223761
KB		 3134 return rc;
3135}
3136
9e68cccc 3137static inline void pqi_invalid_response(struct pqi_ctrl_info *ctrl_info)
6c223761 3138{
9e68cccc
KB		 3139 pqi_take_ctrl_offline(ctrl_info);
3140}
3141
3142static int pqi_process_io_intr(struct pqi_ctrl_info *ctrl_info, struct pqi_queue_group *queue_group)
6c223761 3143{
9e68cccc 3144 int num_responses;
6c223761
KB		 3145 pqi_index_t oq_pi;
3146 pqi_index_t oq_ci;
3147 struct pqi_io_request *io_request;
3148 struct pqi_io_response *response;
3149 u16 request_id;
3150
3151 num_responses = 0;
3152 oq_ci = queue_group->oq_ci_copy;
3153
3154 while (1) {
dac12fbc 3155 oq_pi = readl(queue_group->oq_pi);
9e68cccc
KB		 3156 if (oq_pi >= ctrl_info->num_elements_per_oq) {
3157 pqi_invalid_response(ctrl_info);
3158 dev_err(&ctrl_info->pci_dev->dev,
3159 "I/O interrupt: producer index (%u) out of range (0-%u): consumer index: %u\n",
3160 oq_pi, ctrl_info->num_elements_per_oq - 1, oq_ci);
3161 return -1;
3162 }
6c223761
KB		 3163 if (oq_pi == oq_ci)
3164 break;
3165
3166 num_responses++;
3167 response = queue_group->oq_element_array +
3168 (oq_ci * PQI_OPERATIONAL_OQ_ELEMENT_LENGTH);
3169
3170 request_id = get_unaligned_le16(&response->request_id);
9e68cccc
KB		 3171 if (request_id >= ctrl_info->max_io_slots) {
3172 pqi_invalid_response(ctrl_info);
3173 dev_err(&ctrl_info->pci_dev->dev,
3174 "request ID in response (%u) out of range (0-%u): producer index: %u consumer index: %u\n",
3175 request_id, ctrl_info->max_io_slots - 1, oq_pi, oq_ci);
3176 return -1;
3177 }
6c223761
KB		 3178
3179 io_request = &ctrl_info->io_request_pool[request_id];
9e68cccc
KB		 3180 if (atomic_read(&io_request->refcount) == 0) {
3181 pqi_invalid_response(ctrl_info);
3182 dev_err(&ctrl_info->pci_dev->dev,
3183 "request ID in response (%u) does not match an outstanding I/O request: producer index: %u consumer index: %u\n",
3184 request_id, oq_pi, oq_ci);
3185 return -1;
3186 }
6c223761
KB		 3187
3188 switch (response->header.iu_type) {
3189 case PQI_RESPONSE_IU_RAID_PATH_IO_SUCCESS:
3190 case PQI_RESPONSE_IU_AIO_PATH_IO_SUCCESS:
2ba55c98
KB		 3191 if (io_request->scmd)
3192 io_request->scmd->result = 0;
df561f66 3193 fallthrough;
6c223761
KB		 3194 case PQI_RESPONSE_IU_GENERAL_MANAGEMENT:
3195 break;
b212c251
KB		 3196 case PQI_RESPONSE_IU_VENDOR_GENERAL:
3197 io_request->status =
3198 get_unaligned_le16(
583891c9 3199 &((struct pqi_vendor_general_response *)response)->status);
b212c251 3200 break;
6c223761 3201 case PQI_RESPONSE_IU_TASK_MANAGEMENT:
18ff5f08
KB		 3202 io_request->status = pqi_interpret_task_management_response(ctrl_info,
3203 (void *)response);
6c223761
KB		 3204 break;
3205 case PQI_RESPONSE_IU_AIO_PATH_DISABLED:
3206 pqi_aio_path_disabled(io_request);
3207 io_request->status = -EAGAIN;
3208 break;
3209 case PQI_RESPONSE_IU_RAID_PATH_IO_ERROR:
3210 case PQI_RESPONSE_IU_AIO_PATH_IO_ERROR:
3211 io_request->error_info = ctrl_info->error_buffer +
3212 (get_unaligned_le16(&response->error_index) *
3213 PQI_ERROR_BUFFER_ELEMENT_LENGTH);
9e68cccc 3214 pqi_process_io_error(response->header.iu_type, io_request);
6c223761
KB		 3215 break;
3216 default:
9e68cccc 3217 pqi_invalid_response(ctrl_info);
6c223761 3218 dev_err(&ctrl_info->pci_dev->dev,
9e68cccc
KB		 3219 "unexpected IU type: 0x%x: producer index: %u consumer index: %u\n",
3220 response->header.iu_type, oq_pi, oq_ci);
3221 return -1;
6c223761
KB		 3222 }
3223
9e68cccc 3224 io_request->io_complete_callback(io_request, io_request->context);
6c223761
KB		 3225
3226 /*
3227 * Note that the I/O request structure CANNOT BE TOUCHED after
3228 * returning from the I/O completion callback!
3229 */
6c223761
KB		 3230 oq_ci = (oq_ci + 1) % ctrl_info->num_elements_per_oq;
3231 }
3232
3233 if (num_responses) {
3234 queue_group->oq_ci_copy = oq_ci;
3235 writel(oq_ci, queue_group->oq_ci);
3236 }
3237
3238 return num_responses;
3239}
3240
3241static inline unsigned int pqi_num_elements_free(unsigned int pi,
df7a1fcf 3242 unsigned int ci, unsigned int elements_in_queue)
6c223761
KB		 3243{
3244 unsigned int num_elements_used;
3245
3246 if (pi >= ci)
3247 num_elements_used = pi - ci;
3248 else
3249 num_elements_used = elements_in_queue - ci + pi;
3250
3251 return elements_in_queue - num_elements_used - 1;
3252}
3253
98f87667 3254static void pqi_send_event_ack(struct pqi_ctrl_info *ctrl_info,
6c223761
KB		 3255 struct pqi_event_acknowledge_request *iu, size_t iu_length)
3256{
3257 pqi_index_t iq_pi;
3258 pqi_index_t iq_ci;
3259 unsigned long flags;
3260 void *next_element;
6c223761
KB		 3261 struct pqi_queue_group *queue_group;
3262
3263 queue_group = &ctrl_info->queue_groups[PQI_DEFAULT_QUEUE_GROUP];
3264 put_unaligned_le16(queue_group->oq_id, &iu->header.response_queue_id);
3265
6c223761
KB		 3266 while (1) {
3267 spin_lock_irqsave(&queue_group->submit_lock[RAID_PATH], flags);
3268
3269 iq_pi = queue_group->iq_pi_copy[RAID_PATH];
dac12fbc 3270 iq_ci = readl(queue_group->iq_ci[RAID_PATH]);
6c223761
KB		 3271
3272 if (pqi_num_elements_free(iq_pi, iq_ci,
3273 ctrl_info->num_elements_per_iq))
3274 break;
3275
3276 spin_unlock_irqrestore(
3277 &queue_group->submit_lock[RAID_PATH], flags);
3278
98f87667 3279 if (pqi_ctrl_offline(ctrl_info))
6c223761 3280 return;
6c223761
KB		 3281 }
3282
3283 next_element = queue_group->iq_element_array[RAID_PATH] +
3284 (iq_pi * PQI_OPERATIONAL_IQ_ELEMENT_LENGTH);
3285
3286 memcpy(next_element, iu, iu_length);
3287
3288 iq_pi = (iq_pi + 1) % ctrl_info->num_elements_per_iq;
6c223761
KB		 3289 queue_group->iq_pi_copy[RAID_PATH] = iq_pi;
3290
3291 /*
3292 * This write notifies the controller that an IU is available to be
3293 * processed.
3294 */
3295 writel(iq_pi, queue_group->iq_pi[RAID_PATH]);
3296
3297 spin_unlock_irqrestore(&queue_group->submit_lock[RAID_PATH], flags);
6c223761
KB		 3298}
3299
3300static void pqi_acknowledge_event(struct pqi_ctrl_info *ctrl_info,
3301 struct pqi_event *event)
3302{
3303 struct pqi_event_acknowledge_request request;
3304
3305 memset(&request, 0, sizeof(request));
3306
3307 request.header.iu_type = PQI_REQUEST_IU_ACKNOWLEDGE_VENDOR_EVENT;
3308 put_unaligned_le16(sizeof(request) - PQI_REQUEST_HEADER_LENGTH,
3309 &request.header.iu_length);
3310 request.event_type = event->event_type;
06b41e0d
KB		 3311 put_unaligned_le16(event->event_id, &request.event_id);
3312 put_unaligned_le32(event->additional_event_id, &request.additional_event_id);
6c223761 3313
98f87667 3314 pqi_send_event_ack(ctrl_info, &request, sizeof(request));
6c223761
KB		 3315}
3316
4fd22c13
MR		 3317#define PQI_SOFT_RESET_STATUS_TIMEOUT_SECS 30
3318#define PQI_SOFT_RESET_STATUS_POLL_INTERVAL_SECS 1
3319
3320static enum pqi_soft_reset_status pqi_poll_for_soft_reset_status(
3321 struct pqi_ctrl_info *ctrl_info)
6c223761 3322{
4fd22c13 3323 u8 status;
583891c9 3324 unsigned long timeout;
6c223761 3325
4fd22c13 3326 timeout = (PQI_SOFT_RESET_STATUS_TIMEOUT_SECS * PQI_HZ) + jiffies;
6c223761 3327
4fd22c13
MR		 3328 while (1) {
3329 status = pqi_read_soft_reset_status(ctrl_info);
3330 if (status & PQI_SOFT_RESET_INITIATE)
3331 return RESET_INITIATE_DRIVER;
3332
3333 if (status & PQI_SOFT_RESET_ABORT)
3334 return RESET_ABORT;
3335
4ccc354b
KB		 3336 if (!sis_is_firmware_running(ctrl_info))
3337 return RESET_NORESPONSE;
3338
4fd22c13 3339 if (time_after(jiffies, timeout)) {
4ccc354b 3340 dev_warn(&ctrl_info->pci_dev->dev,
4fd22c13
MR		 3341 "timed out waiting for soft reset status\n");
3342 return RESET_TIMEDOUT;
3343 }
3344
4fd22c13
MR		 3345 ssleep(PQI_SOFT_RESET_STATUS_POLL_INTERVAL_SECS);
3346 }
3347}
3348
4ccc354b 3349static void pqi_process_soft_reset(struct pqi_ctrl_info *ctrl_info)
4fd22c13
MR		 3350{
3351 int rc;
2790cd4d 3352 unsigned int delay_secs;
4ccc354b
KB		 3353 enum pqi_soft_reset_status reset_status;
3354
3355 if (ctrl_info->soft_reset_handshake_supported)
3356 reset_status = pqi_poll_for_soft_reset_status(ctrl_info);
3357 else
3358 reset_status = RESET_INITIATE_FIRMWARE;
4fd22c13 3359
2790cd4d
KB		 3360 delay_secs = PQI_POST_RESET_DELAY_SECS;
3361
4fd22c13 3362 switch (reset_status) {
4fd22c13 3363 case RESET_TIMEDOUT:
2790cd4d 3364 delay_secs = PQI_POST_OFA_RESET_DELAY_UPON_TIMEOUT_SECS;
4ccc354b
KB		 3365 fallthrough;
3366 case RESET_INITIATE_DRIVER:
4fd22c13 3367 dev_info(&ctrl_info->pci_dev->dev,
4ccc354b 3368 "Online Firmware Activation: resetting controller\n");
4fd22c13 3369 sis_soft_reset(ctrl_info);
df561f66 3370 fallthrough;
4fd22c13 3371 case RESET_INITIATE_FIRMWARE:
4ccc354b
KB		 3372 ctrl_info->pqi_mode_enabled = false;
3373 pqi_save_ctrl_mode(ctrl_info, SIS_MODE);
2790cd4d 3374 rc = pqi_ofa_ctrl_restart(ctrl_info, delay_secs);
4fd22c13 3375 pqi_ofa_free_host_buffer(ctrl_info);
4ccc354b 3376 pqi_ctrl_ofa_done(ctrl_info);
4fd22c13 3377 dev_info(&ctrl_info->pci_dev->dev,
4ccc354b
KB		 3378 "Online Firmware Activation: %s\n",
3379 rc == 0 ? "SUCCESS" : "FAILED");
4fd22c13
MR		 3380 break;
3381 case RESET_ABORT:
4fd22c13 3382 dev_info(&ctrl_info->pci_dev->dev,
4ccc354b
KB		 3383 "Online Firmware Activation ABORTED\n");
3384 if (ctrl_info->soft_reset_handshake_supported)
3385 pqi_clear_soft_reset_status(ctrl_info);
3386 pqi_ofa_free_host_buffer(ctrl_info);
3387 pqi_ctrl_ofa_done(ctrl_info);
3388 pqi_ofa_ctrl_unquiesce(ctrl_info);
4fd22c13
MR		 3389 break;
3390 case RESET_NORESPONSE:
4ccc354b
KB		 3391 fallthrough;
3392 default:
3393 dev_err(&ctrl_info->pci_dev->dev,
3394 "unexpected Online Firmware Activation reset status: 0x%x\n",
3395 reset_status);
4fd22c13 3396 pqi_ofa_free_host_buffer(ctrl_info);
4ccc354b
KB		 3397 pqi_ctrl_ofa_done(ctrl_info);
3398 pqi_ofa_ctrl_unquiesce(ctrl_info);
4fd22c13
MR		 3399 pqi_take_ctrl_offline(ctrl_info);
3400 break;
3401 }
3402}
3403
2790cd4d 3404static void pqi_ofa_memory_alloc_worker(struct work_struct *work)
4fd22c13 3405{
2790cd4d 3406 struct pqi_ctrl_info *ctrl_info;
4fd22c13 3407
2790cd4d 3408 ctrl_info = container_of(work, struct pqi_ctrl_info, ofa_memory_alloc_work);
4fd22c13 3409
2790cd4d
KB		 3410 pqi_ctrl_ofa_start(ctrl_info);
3411 pqi_ofa_setup_host_buffer(ctrl_info);
3412 pqi_ofa_host_memory_update(ctrl_info);
3413}
3414
3415static void pqi_ofa_quiesce_worker(struct work_struct *work)
3416{
3417 struct pqi_ctrl_info *ctrl_info;
3418 struct pqi_event *event;
3419
3420 ctrl_info = container_of(work, struct pqi_ctrl_info, ofa_quiesce_work);
3421
3422 event = &ctrl_info->events[pqi_event_type_to_event_index(PQI_EVENT_TYPE_OFA)];
3423
3424 pqi_ofa_ctrl_quiesce(ctrl_info);
3425 pqi_acknowledge_event(ctrl_info, event);
3426 pqi_process_soft_reset(ctrl_info);
3427}
4fd22c13 3428
2790cd4d
KB		 3429static bool pqi_ofa_process_event(struct pqi_ctrl_info *ctrl_info,
3430 struct pqi_event *event)
3431{
3432 bool ack_event;
3433
3434 ack_event = true;
3435
3436 switch (event->event_id) {
3437 case PQI_EVENT_OFA_MEMORY_ALLOCATION:
4fd22c13 3438 dev_info(&ctrl_info->pci_dev->dev,
2790cd4d
KB		 3439 "received Online Firmware Activation memory allocation request\n");
3440 schedule_work(&ctrl_info->ofa_memory_alloc_work);
3441 break;
3442 case PQI_EVENT_OFA_QUIESCE:
3443 dev_info(&ctrl_info->pci_dev->dev,
3444 "received Online Firmware Activation quiesce request\n");
3445 schedule_work(&ctrl_info->ofa_quiesce_work);
3446 ack_event = false;
3447 break;
3448 case PQI_EVENT_OFA_CANCELED:
4fd22c13 3449 dev_info(&ctrl_info->pci_dev->dev,
2790cd4d
KB		 3450 "received Online Firmware Activation cancel request: reason: %u\n",
3451 ctrl_info->ofa_cancel_reason);
3452 pqi_ofa_free_host_buffer(ctrl_info);
3453 pqi_ctrl_ofa_done(ctrl_info);
3454 break;
3455 default:
3456 dev_err(&ctrl_info->pci_dev->dev,
3457 "received unknown Online Firmware Activation request: event ID: %u\n",
3458 event->event_id);
3459 break;
4fd22c13
MR		 3460 }
3461
2790cd4d 3462 return ack_event;
4fd22c13
MR		 3463}
3464
6c223761
KB		 3465static void pqi_event_worker(struct work_struct *work)
3466{
3467 unsigned int i;
2790cd4d 3468 bool rescan_needed;
6c223761 3469 struct pqi_ctrl_info *ctrl_info;
6a50d6ad 3470 struct pqi_event *event;
2790cd4d 3471 bool ack_event;
6c223761
KB		 3472
3473 ctrl_info = container_of(work, struct pqi_ctrl_info, event_work);
3474
7561a7e4 3475 pqi_ctrl_busy(ctrl_info);
ae0c189d 3476 pqi_wait_if_ctrl_blocked(ctrl_info);
5f310425
KB		 3477 if (pqi_ctrl_offline(ctrl_info))
3478 goto out;
3479
2790cd4d 3480 rescan_needed = false;
6a50d6ad 3481 event = ctrl_info->events;
6c223761 3482 for (i = 0; i < PQI_NUM_SUPPORTED_EVENTS; i++) {
6a50d6ad
KB		 3483 if (event->pending) {
3484 event->pending = false;
4fd22c13 3485 if (event->event_type == PQI_EVENT_TYPE_OFA) {
2790cd4d
KB		 3486 ack_event = pqi_ofa_process_event(ctrl_info, event);
3487 } else {
3488 ack_event = true;
3489 rescan_needed = true;
4fd22c13 3490 }
2790cd4d
KB		 3491 if (ack_event)
3492 pqi_acknowledge_event(ctrl_info, event);
6c223761 3493 }
6a50d6ad 3494 event++;
6c223761
KB		 3495 }
3496
2790cd4d
KB		 3497 if (rescan_needed)
3498 pqi_schedule_rescan_worker_delayed(ctrl_info);
3499
5f310425 3500out:
7561a7e4 3501 pqi_ctrl_unbusy(ctrl_info);
6c223761
KB		 3502}
3503
4fd22c13 3504#define PQI_HEARTBEAT_TIMER_INTERVAL (10 * PQI_HZ)
6c223761 3505
74a0f573 3506static void pqi_heartbeat_timer_handler(struct timer_list *t)
6c223761
KB		 3507{
3508 int num_interrupts;
98f87667 3509 u32 heartbeat_count;
583891c9 3510 struct pqi_ctrl_info *ctrl_info = from_timer(ctrl_info, t, heartbeat_timer);
6c223761 3511
98f87667
KB		 3512 pqi_check_ctrl_health(ctrl_info);
3513 if (pqi_ctrl_offline(ctrl_info))
061ef06a
KB		 3514 return;
3515
6c223761 3516 num_interrupts = atomic_read(&ctrl_info->num_interrupts);
98f87667 3517 heartbeat_count = pqi_read_heartbeat_counter(ctrl_info);
6c223761
KB		 3518
3519 if (num_interrupts == ctrl_info->previous_num_interrupts) {
98f87667
KB		 3520 if (heartbeat_count == ctrl_info->previous_heartbeat_count) {
3521 dev_err(&ctrl_info->pci_dev->dev,
3522 "no heartbeat detected - last heartbeat count: %u\n",
3523 heartbeat_count);
6c223761
KB		 3524 pqi_take_ctrl_offline(ctrl_info);
3525 return;
3526 }
6c223761 3527 } else {
98f87667 3528 ctrl_info->previous_num_interrupts = num_interrupts;
6c223761
KB		 3529 }
3530
98f87667 3531 ctrl_info->previous_heartbeat_count = heartbeat_count;
6c223761
KB		 3532 mod_timer(&ctrl_info->heartbeat_timer,
3533 jiffies + PQI_HEARTBEAT_TIMER_INTERVAL);
3534}
3535
3536static void pqi_start_heartbeat_timer(struct pqi_ctrl_info *ctrl_info)
3537{
98f87667
KB		 3538 if (!ctrl_info->heartbeat_counter)
3539 return;
3540
6c223761
KB		 3541 ctrl_info->previous_num_interrupts =
3542 atomic_read(&ctrl_info->num_interrupts);
98f87667
KB		 3543 ctrl_info->previous_heartbeat_count =
3544 pqi_read_heartbeat_counter(ctrl_info);
6c223761 3545
6c223761
KB		 3546 ctrl_info->heartbeat_timer.expires =
3547 jiffies + PQI_HEARTBEAT_TIMER_INTERVAL;
061ef06a 3548 add_timer(&ctrl_info->heartbeat_timer);
6c223761
KB		 3549}
3550
3551static inline void pqi_stop_heartbeat_timer(struct pqi_ctrl_info *ctrl_info)
3552{
98f87667 3553 del_timer_sync(&ctrl_info->heartbeat_timer);
6c223761
KB		 3554}
3555
2790cd4d
KB		 3556static void pqi_ofa_capture_event_payload(struct pqi_ctrl_info *ctrl_info,
3557 struct pqi_event *event, struct pqi_event_response *response)
6a50d6ad 3558{
2790cd4d
KB		 3559 switch (event->event_id) {
3560 case PQI_EVENT_OFA_MEMORY_ALLOCATION:
3561 ctrl_info->ofa_bytes_requested =
3562 get_unaligned_le32(&response->data.ofa_memory_allocation.bytes_requested);
3563 break;
3564 case PQI_EVENT_OFA_CANCELED:
3565 ctrl_info->ofa_cancel_reason =
3566 get_unaligned_le16(&response->data.ofa_cancelled.reason);
3567 break;
4fd22c13
MR		 3568 }
3569}
3570
9e68cccc 3571static int pqi_process_event_intr(struct pqi_ctrl_info *ctrl_info)
6c223761 3572{
9e68cccc 3573 int num_events;
6c223761
KB		 3574 pqi_index_t oq_pi;
3575 pqi_index_t oq_ci;
3576 struct pqi_event_queue *event_queue;
3577 struct pqi_event_response *response;
6a50d6ad 3578 struct pqi_event *event;
6c223761
KB		 3579 int event_index;
3580
3581 event_queue = &ctrl_info->event_queue;
3582 num_events = 0;
6c223761
KB		 3583 oq_ci = event_queue->oq_ci_copy;
3584
3585 while (1) {
dac12fbc 3586 oq_pi = readl(event_queue->oq_pi);
9e68cccc
KB		 3587 if (oq_pi >= PQI_NUM_EVENT_QUEUE_ELEMENTS) {
3588 pqi_invalid_response(ctrl_info);
3589 dev_err(&ctrl_info->pci_dev->dev,
3590 "event interrupt: producer index (%u) out of range (0-%u): consumer index: %u\n",
3591 oq_pi, PQI_NUM_EVENT_QUEUE_ELEMENTS - 1, oq_ci);
3592 return -1;
3593 }
3594
6c223761
KB		 3595 if (oq_pi == oq_ci)
3596 break;
3597
3598 num_events++;
9e68cccc 3599 response = event_queue->oq_element_array + (oq_ci * PQI_EVENT_OQ_ELEMENT_LENGTH);
6c223761 3600
583891c9 3601 event_index = pqi_event_type_to_event_index(response->event_type);
6c223761 3602
9e68cccc
KB		 3603 if (event_index >= 0 && response->request_acknowledge) {
3604 event = &ctrl_info->events[event_index];
3605 event->pending = true;
3606 event->event_type = response->event_type;
06b41e0d
KB		 3607 event->event_id = get_unaligned_le16(&response->event_id);
3608 event->additional_event_id =
3609 get_unaligned_le32(&response->additional_event_id);
9e68cccc 3610 if (event->event_type == PQI_EVENT_TYPE_OFA)
2790cd4d 3611 pqi_ofa_capture_event_payload(ctrl_info, event, response);
6c223761
KB		 3612 }
3613
3614 oq_ci = (oq_ci + 1) % PQI_NUM_EVENT_QUEUE_ELEMENTS;
3615 }
3616
3617 if (num_events) {
3618 event_queue->oq_ci_copy = oq_ci;
3619 writel(oq_ci, event_queue->oq_ci);
98f87667 3620 schedule_work(&ctrl_info->event_work);
6c223761
KB		 3621 }
3622
3623 return num_events;
3624}
3625
061ef06a
KB		 3626#define PQI_LEGACY_INTX_MASK 0x1
3627
583891c9 3628static inline void pqi_configure_legacy_intx(struct pqi_ctrl_info *ctrl_info, bool enable_intx)
061ef06a
KB		 3629{
3630 u32 intx_mask;
3631 struct pqi_device_registers __iomem *pqi_registers;
3632 volatile void __iomem *register_addr;
3633
3634 pqi_registers = ctrl_info->pqi_registers;
3635
3636 if (enable_intx)
3637 register_addr = &pqi_registers->legacy_intx_mask_clear;
3638 else
3639 register_addr = &pqi_registers->legacy_intx_mask_set;
3640
3641 intx_mask = readl(register_addr);
3642 intx_mask |= PQI_LEGACY_INTX_MASK;
3643 writel(intx_mask, register_addr);
3644}
3645
3646static void pqi_change_irq_mode(struct pqi_ctrl_info *ctrl_info,
3647 enum pqi_irq_mode new_mode)
3648{
3649 switch (ctrl_info->irq_mode) {
3650 case IRQ_MODE_MSIX:
3651 switch (new_mode) {
3652 case IRQ_MODE_MSIX:
3653 break;
3654 case IRQ_MODE_INTX:
3655 pqi_configure_legacy_intx(ctrl_info, true);
061ef06a
KB		 3656 sis_enable_intx(ctrl_info);
3657 break;
3658 case IRQ_MODE_NONE:
061ef06a
KB		 3659 break;
3660 }
3661 break;
3662 case IRQ_MODE_INTX:
3663 switch (new_mode) {
3664 case IRQ_MODE_MSIX:
3665 pqi_configure_legacy_intx(ctrl_info, false);
061ef06a
KB		 3666 sis_enable_msix(ctrl_info);
3667 break;
3668 case IRQ_MODE_INTX:
3669 break;
3670 case IRQ_MODE_NONE:
3671 pqi_configure_legacy_intx(ctrl_info, false);
061ef06a
KB		 3672 break;
3673 }
3674 break;
3675 case IRQ_MODE_NONE:
3676 switch (new_mode) {
3677 case IRQ_MODE_MSIX:
3678 sis_enable_msix(ctrl_info);
3679 break;
3680 case IRQ_MODE_INTX:
3681 pqi_configure_legacy_intx(ctrl_info, true);
3682 sis_enable_intx(ctrl_info);
3683 break;
3684 case IRQ_MODE_NONE:
3685 break;
3686 }
3687 break;
3688 }
3689
3690 ctrl_info->irq_mode = new_mode;
3691}
3692
3693#define PQI_LEGACY_INTX_PENDING 0x1
3694
3695static inline bool pqi_is_valid_irq(struct pqi_ctrl_info *ctrl_info)
3696{
3697 bool valid_irq;
3698 u32 intx_status;
3699
3700 switch (ctrl_info->irq_mode) {
3701 case IRQ_MODE_MSIX:
3702 valid_irq = true;
3703 break;
3704 case IRQ_MODE_INTX:
583891c9 3705 intx_status = readl(&ctrl_info->pqi_registers->legacy_intx_status);
061ef06a
KB		 3706 if (intx_status & PQI_LEGACY_INTX_PENDING)
3707 valid_irq = true;
3708 else
3709 valid_irq = false;
3710 break;
3711 case IRQ_MODE_NONE:
3712 default:
3713 valid_irq = false;
3714 break;
3715 }
3716
3717 return valid_irq;
3718}
3719
6c223761
KB		 3720static irqreturn_t pqi_irq_handler(int irq, void *data)
3721{
3722 struct pqi_ctrl_info *ctrl_info;
3723 struct pqi_queue_group *queue_group;
9e68cccc
KB		 3724 int num_io_responses_handled;
3725 int num_events_handled;
6c223761
KB		 3726
3727 queue_group = data;
3728 ctrl_info = queue_group->ctrl_info;
3729
061ef06a 3730 if (!pqi_is_valid_irq(ctrl_info))
6c223761
KB		 3731 return IRQ_NONE;
3732
9e68cccc
KB		 3733 num_io_responses_handled = pqi_process_io_intr(ctrl_info, queue_group);
3734 if (num_io_responses_handled < 0)
3735 goto out;
6c223761 3736
9e68cccc
KB		 3737 if (irq == ctrl_info->event_irq) {
3738 num_events_handled = pqi_process_event_intr(ctrl_info);
3739 if (num_events_handled < 0)
3740 goto out;
3741 } else {
3742 num_events_handled = 0;
3743 }
6c223761 3744
9e68cccc 3745 if (num_io_responses_handled + num_events_handled > 0)
6c223761
KB		 3746 atomic_inc(&ctrl_info->num_interrupts);
3747
3748 pqi_start_io(ctrl_info, queue_group, RAID_PATH, NULL);
3749 pqi_start_io(ctrl_info, queue_group, AIO_PATH, NULL);
3750
9e68cccc 3751out:
6c223761
KB		 3752 return IRQ_HANDLED;
3753}
3754
3755static int pqi_request_irqs(struct pqi_ctrl_info *ctrl_info)
3756{
d91d7820 3757 struct pci_dev *pci_dev = ctrl_info->pci_dev;
6c223761
KB		 3758 int i;
3759 int rc;
3760
d91d7820 3761 ctrl_info->event_irq = pci_irq_vector(pci_dev, 0);
6c223761
KB		 3762
3763 for (i = 0; i < ctrl_info->num_msix_vectors_enabled; i++) {
d91d7820 3764 rc = request_irq(pci_irq_vector(pci_dev, i), pqi_irq_handler, 0,
52198226 3765 DRIVER_NAME_SHORT, &ctrl_info->queue_groups[i]);
6c223761 3766 if (rc) {
d91d7820 3767 dev_err(&pci_dev->dev,
6c223761 3768 "irq %u init failed with error %d\n",
d91d7820 3769 pci_irq_vector(pci_dev, i), rc);
6c223761
KB		 3770 return rc;
3771 }
3772 ctrl_info->num_msix_vectors_initialized++;
3773 }
3774
3775 return 0;
3776}
3777
98bf061b
KB		 3778static void pqi_free_irqs(struct pqi_ctrl_info *ctrl_info)
3779{
3780 int i;
3781
3782 for (i = 0; i < ctrl_info->num_msix_vectors_initialized; i++)
3783 free_irq(pci_irq_vector(ctrl_info->pci_dev, i),
3784 &ctrl_info->queue_groups[i]);
3785
3786 ctrl_info->num_msix_vectors_initialized = 0;
3787}
3788
6c223761
KB		 3789static int pqi_enable_msix_interrupts(struct pqi_ctrl_info *ctrl_info)
3790{
98bf061b 3791 int num_vectors_enabled;
6c223761 3792
98bf061b 3793 num_vectors_enabled = pci_alloc_irq_vectors(ctrl_info->pci_dev,
52198226
CH		 3794 PQI_MIN_MSIX_VECTORS, ctrl_info->num_queue_groups,
3795 PCI_IRQ_MSIX | PCI_IRQ_AFFINITY);
98bf061b 3796 if (num_vectors_enabled < 0) {
6c223761 3797 dev_err(&ctrl_info->pci_dev->dev,
98bf061b
KB		 3798 "MSI-X init failed with error %d\n",
3799 num_vectors_enabled);
3800 return num_vectors_enabled;
6c223761
KB		 3801 }
3802
98bf061b 3803 ctrl_info->num_msix_vectors_enabled = num_vectors_enabled;
061ef06a 3804 ctrl_info->irq_mode = IRQ_MODE_MSIX;
6c223761
KB		 3805 return 0;
3806}
3807
98bf061b
KB		 3808static void pqi_disable_msix_interrupts(struct pqi_ctrl_info *ctrl_info)
3809{
3810 if (ctrl_info->num_msix_vectors_enabled) {
3811 pci_free_irq_vectors(ctrl_info->pci_dev);
3812 ctrl_info->num_msix_vectors_enabled = 0;
3813 }
3814}
3815
6c223761
KB		 3816static int pqi_alloc_operational_queues(struct pqi_ctrl_info *ctrl_info)
3817{
3818 unsigned int i;
3819 size_t alloc_length;
3820 size_t element_array_length_per_iq;
3821 size_t element_array_length_per_oq;
3822 void *element_array;
dac12fbc 3823 void __iomem *next_queue_index;
6c223761
KB		 3824 void *aligned_pointer;
3825 unsigned int num_inbound_queues;
3826 unsigned int num_outbound_queues;
3827 unsigned int num_queue_indexes;
3828 struct pqi_queue_group *queue_group;
3829
3830 element_array_length_per_iq =
3831 PQI_OPERATIONAL_IQ_ELEMENT_LENGTH *
3832 ctrl_info->num_elements_per_iq;
3833 element_array_length_per_oq =
3834 PQI_OPERATIONAL_OQ_ELEMENT_LENGTH *
3835 ctrl_info->num_elements_per_oq;
3836 num_inbound_queues = ctrl_info->num_queue_groups * 2;
3837 num_outbound_queues = ctrl_info->num_queue_groups;
3838 num_queue_indexes = (ctrl_info->num_queue_groups * 3) + 1;
3839
3840 aligned_pointer = NULL;
3841
3842 for (i = 0; i < num_inbound_queues; i++) {
3843 aligned_pointer = PTR_ALIGN(aligned_pointer,
3844 PQI_QUEUE_ELEMENT_ARRAY_ALIGNMENT);
3845 aligned_pointer += element_array_length_per_iq;
3846 }
3847
3848 for (i = 0; i < num_outbound_queues; i++) {
3849 aligned_pointer = PTR_ALIGN(aligned_pointer,
3850 PQI_QUEUE_ELEMENT_ARRAY_ALIGNMENT);
3851 aligned_pointer += element_array_length_per_oq;
3852 }
3853
3854 aligned_pointer = PTR_ALIGN(aligned_pointer,
3855 PQI_QUEUE_ELEMENT_ARRAY_ALIGNMENT);
3856 aligned_pointer += PQI_NUM_EVENT_QUEUE_ELEMENTS *
3857 PQI_EVENT_OQ_ELEMENT_LENGTH;
3858
3859 for (i = 0; i < num_queue_indexes; i++) {
3860 aligned_pointer = PTR_ALIGN(aligned_pointer,
3861 PQI_OPERATIONAL_INDEX_ALIGNMENT);
3862 aligned_pointer += sizeof(pqi_index_t);
3863 }
3864
3865 alloc_length = (size_t)aligned_pointer +
3866 PQI_QUEUE_ELEMENT_ARRAY_ALIGNMENT;
3867
e1d213bd
KB		 3868 alloc_length += PQI_EXTRA_SGL_MEMORY;
3869
6c223761 3870 ctrl_info->queue_memory_base =
750afb08
LC		 3871 dma_alloc_coherent(&ctrl_info->pci_dev->dev, alloc_length,
3872 &ctrl_info->queue_memory_base_dma_handle,
3873 GFP_KERNEL);
6c223761 3874
d87d5474 3875 if (!ctrl_info->queue_memory_base)
6c223761 3876 return -ENOMEM;
6c223761
KB		 3877
3878 ctrl_info->queue_memory_length = alloc_length;
3879
3880 element_array = PTR_ALIGN(ctrl_info->queue_memory_base,
3881 PQI_QUEUE_ELEMENT_ARRAY_ALIGNMENT);
3882
3883 for (i = 0; i < ctrl_info->num_queue_groups; i++) {
3884 queue_group = &ctrl_info->queue_groups[i];
3885 queue_group->iq_element_array[RAID_PATH] = element_array;
3886 queue_group->iq_element_array_bus_addr[RAID_PATH] =
3887 ctrl_info->queue_memory_base_dma_handle +
3888 (element_array - ctrl_info->queue_memory_base);
3889 element_array += element_array_length_per_iq;
3890 element_array = PTR_ALIGN(element_array,
3891 PQI_QUEUE_ELEMENT_ARRAY_ALIGNMENT);
3892 queue_group->iq_element_array[AIO_PATH] = element_array;
3893 queue_group->iq_element_array_bus_addr[AIO_PATH] =
3894 ctrl_info->queue_memory_base_dma_handle +
3895 (element_array - ctrl_info->queue_memory_base);
3896 element_array += element_array_length_per_iq;
3897 element_array = PTR_ALIGN(element_array,
3898 PQI_QUEUE_ELEMENT_ARRAY_ALIGNMENT);
3899 }
3900
3901 for (i = 0; i < ctrl_info->num_queue_groups; i++) {
3902 queue_group = &ctrl_info->queue_groups[i];
3903 queue_group->oq_element_array = element_array;
3904 queue_group->oq_element_array_bus_addr =
3905 ctrl_info->queue_memory_base_dma_handle +
3906 (element_array - ctrl_info->queue_memory_base);
3907 element_array += element_array_length_per_oq;
3908 element_array = PTR_ALIGN(element_array,
3909 PQI_QUEUE_ELEMENT_ARRAY_ALIGNMENT);
3910 }
3911
3912 ctrl_info->event_queue.oq_element_array = element_array;
3913 ctrl_info->event_queue.oq_element_array_bus_addr =
3914 ctrl_info->queue_memory_base_dma_handle +
3915 (element_array - ctrl_info->queue_memory_base);
3916 element_array += PQI_NUM_EVENT_QUEUE_ELEMENTS *
3917 PQI_EVENT_OQ_ELEMENT_LENGTH;
3918
dac12fbc 3919 next_queue_index = (void __iomem *)PTR_ALIGN(element_array,
6c223761
KB		 3920 PQI_OPERATIONAL_INDEX_ALIGNMENT);
3921
3922 for (i = 0; i < ctrl_info->num_queue_groups; i++) {
3923 queue_group = &ctrl_info->queue_groups[i];
3924 queue_group->iq_ci[RAID_PATH] = next_queue_index;
3925 queue_group->iq_ci_bus_addr[RAID_PATH] =
3926 ctrl_info->queue_memory_base_dma_handle +
dac12fbc
KB		 3927 (next_queue_index -
3928 (void __iomem *)ctrl_info->queue_memory_base);
6c223761
KB		 3929 next_queue_index += sizeof(pqi_index_t);
3930 next_queue_index = PTR_ALIGN(next_queue_index,
3931 PQI_OPERATIONAL_INDEX_ALIGNMENT);
3932 queue_group->iq_ci[AIO_PATH] = next_queue_index;
3933 queue_group->iq_ci_bus_addr[AIO_PATH] =
3934 ctrl_info->queue_memory_base_dma_handle +
dac12fbc
KB		 3935 (next_queue_index -
3936 (void __iomem *)ctrl_info->queue_memory_base);
6c223761
KB		 3937 next_queue_index += sizeof(pqi_index_t);
3938 next_queue_index = PTR_ALIGN(next_queue_index,
3939 PQI_OPERATIONAL_INDEX_ALIGNMENT);
3940 queue_group->oq_pi = next_queue_index;
3941 queue_group->oq_pi_bus_addr =
3942 ctrl_info->queue_memory_base_dma_handle +
dac12fbc
KB		 3943 (next_queue_index -
3944 (void __iomem *)ctrl_info->queue_memory_base);
6c223761
KB		 3945 next_queue_index += sizeof(pqi_index_t);
3946 next_queue_index = PTR_ALIGN(next_queue_index,
3947 PQI_OPERATIONAL_INDEX_ALIGNMENT);
3948 }
3949
3950 ctrl_info->event_queue.oq_pi = next_queue_index;
3951 ctrl_info->event_queue.oq_pi_bus_addr =
3952 ctrl_info->queue_memory_base_dma_handle +
dac12fbc
KB		 3953 (next_queue_index -
3954 (void __iomem *)ctrl_info->queue_memory_base);
6c223761
KB		 3955
3956 return 0;
3957}
3958
3959static void pqi_init_operational_queues(struct pqi_ctrl_info *ctrl_info)
3960{
3961 unsigned int i;
3962 u16 next_iq_id = PQI_MIN_OPERATIONAL_QUEUE_ID;
3963 u16 next_oq_id = PQI_MIN_OPERATIONAL_QUEUE_ID;
3964
3965 /*
3966 * Initialize the backpointers to the controller structure in
3967 * each operational queue group structure.
3968 */
3969 for (i = 0; i < ctrl_info->num_queue_groups; i++)
3970 ctrl_info->queue_groups[i].ctrl_info = ctrl_info;
3971
3972 /*
3973 * Assign IDs to all operational queues. Note that the IDs
3974 * assigned to operational IQs are independent of the IDs
3975 * assigned to operational OQs.
3976 */
3977 ctrl_info->event_queue.oq_id = next_oq_id++;
3978 for (i = 0; i < ctrl_info->num_queue_groups; i++) {
3979 ctrl_info->queue_groups[i].iq_id[RAID_PATH] = next_iq_id++;
3980 ctrl_info->queue_groups[i].iq_id[AIO_PATH] = next_iq_id++;
3981 ctrl_info->queue_groups[i].oq_id = next_oq_id++;
3982 }
3983
3984 /*
3985 * Assign MSI-X table entry indexes to all queues. Note that the
3986 * interrupt for the event queue is shared with the first queue group.
3987 */
3988 ctrl_info->event_queue.int_msg_num = 0;
3989 for (i = 0; i < ctrl_info->num_queue_groups; i++)
3990 ctrl_info->queue_groups[i].int_msg_num = i;
3991
3992 for (i = 0; i < ctrl_info->num_queue_groups; i++) {
3993 spin_lock_init(&ctrl_info->queue_groups[i].submit_lock[0]);
3994 spin_lock_init(&ctrl_info->queue_groups[i].submit_lock[1]);
3995 INIT_LIST_HEAD(&ctrl_info->queue_groups[i].request_list[0]);
3996 INIT_LIST_HEAD(&ctrl_info->queue_groups[i].request_list[1]);
3997 }
3998}
3999
4000static int pqi_alloc_admin_queues(struct pqi_ctrl_info *ctrl_info)
4001{
4002 size_t alloc_length;
4003 struct pqi_admin_queues_aligned *admin_queues_aligned;
4004 struct pqi_admin_queues *admin_queues;
4005
4006 alloc_length = sizeof(struct pqi_admin_queues_aligned) +
4007 PQI_QUEUE_ELEMENT_ARRAY_ALIGNMENT;
4008
4009 ctrl_info->admin_queue_memory_base =
750afb08
LC		 4010 dma_alloc_coherent(&ctrl_info->pci_dev->dev, alloc_length,
4011 &ctrl_info->admin_queue_memory_base_dma_handle,
4012 GFP_KERNEL);
6c223761
KB		 4013
4014 if (!ctrl_info->admin_queue_memory_base)
4015 return -ENOMEM;
4016
4017 ctrl_info->admin_queue_memory_length = alloc_length;
4018
4019 admin_queues = &ctrl_info->admin_queues;
4020 admin_queues_aligned = PTR_ALIGN(ctrl_info->admin_queue_memory_base,
4021 PQI_QUEUE_ELEMENT_ARRAY_ALIGNMENT);
4022 admin_queues->iq_element_array =
4023 &admin_queues_aligned->iq_element_array;
4024 admin_queues->oq_element_array =
4025 &admin_queues_aligned->oq_element_array;
583891c9
KB		 4026 admin_queues->iq_ci =
4027 (pqi_index_t __iomem *)&admin_queues_aligned->iq_ci;
dac12fbc
KB		 4028 admin_queues->oq_pi =
4029 (pqi_index_t __iomem *)&admin_queues_aligned->oq_pi;
6c223761
KB		 4030
4031 admin_queues->iq_element_array_bus_addr =
4032 ctrl_info->admin_queue_memory_base_dma_handle +
4033 (admin_queues->iq_element_array -
4034 ctrl_info->admin_queue_memory_base);
4035 admin_queues->oq_element_array_bus_addr =
4036 ctrl_info->admin_queue_memory_base_dma_handle +
4037 (admin_queues->oq_element_array -
4038 ctrl_info->admin_queue_memory_base);
4039 admin_queues->iq_ci_bus_addr =
4040 ctrl_info->admin_queue_memory_base_dma_handle +
583891c9
KB		 4041 ((void __iomem *)admin_queues->iq_ci -
4042 (void __iomem *)ctrl_info->admin_queue_memory_base);
6c223761
KB		 4043 admin_queues->oq_pi_bus_addr =
4044 ctrl_info->admin_queue_memory_base_dma_handle +
dac12fbc
KB		 4045 ((void __iomem *)admin_queues->oq_pi -
4046 (void __iomem *)ctrl_info->admin_queue_memory_base);
6c223761
KB		 4047
4048 return 0;
4049}
4050
4fd22c13 4051#define PQI_ADMIN_QUEUE_CREATE_TIMEOUT_JIFFIES PQI_HZ
6c223761
KB		 4052#define PQI_ADMIN_QUEUE_CREATE_POLL_INTERVAL_MSECS 1
4053
4054static int pqi_create_admin_queues(struct pqi_ctrl_info *ctrl_info)
4055{
4056 struct pqi_device_registers __iomem *pqi_registers;
4057 struct pqi_admin_queues *admin_queues;
4058 unsigned long timeout;
4059 u8 status;
4060 u32 reg;
4061
4062 pqi_registers = ctrl_info->pqi_registers;
4063 admin_queues = &ctrl_info->admin_queues;
4064
4065 writeq((u64)admin_queues->iq_element_array_bus_addr,
4066 &pqi_registers->admin_iq_element_array_addr);
4067 writeq((u64)admin_queues->oq_element_array_bus_addr,
4068 &pqi_registers->admin_oq_element_array_addr);
4069 writeq((u64)admin_queues->iq_ci_bus_addr,
4070 &pqi_registers->admin_iq_ci_addr);
4071 writeq((u64)admin_queues->oq_pi_bus_addr,
4072 &pqi_registers->admin_oq_pi_addr);
4073
4074 reg = PQI_ADMIN_IQ_NUM_ELEMENTS |
e655d469 4075 (PQI_ADMIN_OQ_NUM_ELEMENTS << 8) |
6c223761
KB		 4076 (admin_queues->int_msg_num << 16);
4077 writel(reg, &pqi_registers->admin_iq_num_elements);
583891c9 4078
6c223761
KB		 4079 writel(PQI_CREATE_ADMIN_QUEUE_PAIR,
4080 &pqi_registers->function_and_status_code);
4081
4082 timeout = PQI_ADMIN_QUEUE_CREATE_TIMEOUT_JIFFIES + jiffies;
4083 while (1) {
4084 status = readb(&pqi_registers->function_and_status_code);
4085 if (status == PQI_STATUS_IDLE)
4086 break;
4087 if (time_after(jiffies, timeout))
4088 return -ETIMEDOUT;
4089 msleep(PQI_ADMIN_QUEUE_CREATE_POLL_INTERVAL_MSECS);
4090 }
4091
4092 /*
4093 * The offset registers are not initialized to the correct
4094 * offsets until *after* the create admin queue pair command
4095 * completes successfully.
4096 */
4097 admin_queues->iq_pi = ctrl_info->iomem_base +
4098 PQI_DEVICE_REGISTERS_OFFSET +
4099 readq(&pqi_registers->admin_iq_pi_offset);
4100 admin_queues->oq_ci = ctrl_info->iomem_base +
4101 PQI_DEVICE_REGISTERS_OFFSET +
4102 readq(&pqi_registers->admin_oq_ci_offset);
4103
4104 return 0;
4105}
4106
4107static void pqi_submit_admin_request(struct pqi_ctrl_info *ctrl_info,
4108 struct pqi_general_admin_request *request)
4109{
4110 struct pqi_admin_queues *admin_queues;
4111 void *next_element;
4112 pqi_index_t iq_pi;
4113
4114 admin_queues = &ctrl_info->admin_queues;
4115 iq_pi = admin_queues->iq_pi_copy;
4116
4117 next_element = admin_queues->iq_element_array +
4118 (iq_pi * PQI_ADMIN_IQ_ELEMENT_LENGTH);
4119
4120 memcpy(next_element, request, sizeof(*request));
4121
4122 iq_pi = (iq_pi + 1) % PQI_ADMIN_IQ_NUM_ELEMENTS;
4123 admin_queues->iq_pi_copy = iq_pi;
4124
4125 /*
4126 * This write notifies the controller that an IU is available to be
4127 * processed.
4128 */
4129 writel(iq_pi, admin_queues->iq_pi);
4130}
4131
13bede67
KB		 4132#define PQI_ADMIN_REQUEST_TIMEOUT_SECS 60
4133
6c223761
KB		 4134static int pqi_poll_for_admin_response(struct pqi_ctrl_info *ctrl_info,
4135 struct pqi_general_admin_response *response)
4136{
4137 struct pqi_admin_queues *admin_queues;
4138 pqi_index_t oq_pi;
4139 pqi_index_t oq_ci;
4140 unsigned long timeout;
4141
4142 admin_queues = &ctrl_info->admin_queues;
4143 oq_ci = admin_queues->oq_ci_copy;
4144
4fd22c13 4145 timeout = (PQI_ADMIN_REQUEST_TIMEOUT_SECS * PQI_HZ) + jiffies;
6c223761
KB		 4146
4147 while (1) {
dac12fbc 4148 oq_pi = readl(admin_queues->oq_pi);
6c223761
KB		 4149 if (oq_pi != oq_ci)
4150 break;
4151 if (time_after(jiffies, timeout)) {
4152 dev_err(&ctrl_info->pci_dev->dev,
4153 "timed out waiting for admin response\n");
4154 return -ETIMEDOUT;
4155 }
13bede67
KB		 4156 if (!sis_is_firmware_running(ctrl_info))
4157 return -ENXIO;
6c223761
KB		 4158 usleep_range(1000, 2000);
4159 }
4160
4161 memcpy(response, admin_queues->oq_element_array +
4162 (oq_ci * PQI_ADMIN_OQ_ELEMENT_LENGTH), sizeof(*response));
4163
4164 oq_ci = (oq_ci + 1) % PQI_ADMIN_OQ_NUM_ELEMENTS;
4165 admin_queues->oq_ci_copy = oq_ci;
4166 writel(oq_ci, admin_queues->oq_ci);
4167
4168 return 0;
4169}
4170
4171static void pqi_start_io(struct pqi_ctrl_info *ctrl_info,
4172 struct pqi_queue_group *queue_group, enum pqi_io_path path,
4173 struct pqi_io_request *io_request)
4174{
4175 struct pqi_io_request *next;
4176 void *next_element;
4177 pqi_index_t iq_pi;
4178 pqi_index_t iq_ci;
4179 size_t iu_length;
4180 unsigned long flags;
4181 unsigned int num_elements_needed;
4182 unsigned int num_elements_to_end_of_queue;
4183 size_t copy_count;
4184 struct pqi_iu_header *request;
4185
4186 spin_lock_irqsave(&queue_group->submit_lock[path], flags);
4187
376fb880
KB		 4188 if (io_request) {
4189 io_request->queue_group = queue_group;
6c223761
KB		 4190 list_add_tail(&io_request->request_list_entry,
4191 &queue_group->request_list[path]);
376fb880 4192 }
6c223761
KB		 4193
4194 iq_pi = queue_group->iq_pi_copy[path];
4195
4196 list_for_each_entry_safe(io_request, next,
4197 &queue_group->request_list[path], request_list_entry) {
4198
4199 request = io_request->iu;
4200
4201 iu_length = get_unaligned_le16(&request->iu_length) +
4202 PQI_REQUEST_HEADER_LENGTH;
4203 num_elements_needed =
4204 DIV_ROUND_UP(iu_length,
4205 PQI_OPERATIONAL_IQ_ELEMENT_LENGTH);
4206
dac12fbc 4207 iq_ci = readl(queue_group->iq_ci[path]);
6c223761
KB		 4208
4209 if (num_elements_needed > pqi_num_elements_free(iq_pi, iq_ci,
4210 ctrl_info->num_elements_per_iq))
4211 break;
4212
4213 put_unaligned_le16(queue_group->oq_id,
4214 &request->response_queue_id);
4215
4216 next_element = queue_group->iq_element_array[path] +
4217 (iq_pi * PQI_OPERATIONAL_IQ_ELEMENT_LENGTH);
4218
4219 num_elements_to_end_of_queue =
4220 ctrl_info->num_elements_per_iq - iq_pi;
4221
4222 if (num_elements_needed <= num_elements_to_end_of_queue) {
4223 memcpy(next_element, request, iu_length);
4224 } else {
4225 copy_count = num_elements_to_end_of_queue *
4226 PQI_OPERATIONAL_IQ_ELEMENT_LENGTH;
4227 memcpy(next_element, request, copy_count);
4228 memcpy(queue_group->iq_element_array[path],
4229 (u8 *)request + copy_count,
4230 iu_length - copy_count);
4231 }
4232
4233 iq_pi = (iq_pi + num_elements_needed) %
4234 ctrl_info->num_elements_per_iq;
4235
4236 list_del(&io_request->request_list_entry);
4237 }
4238
4239 if (iq_pi != queue_group->iq_pi_copy[path]) {
4240 queue_group->iq_pi_copy[path] = iq_pi;
4241 /*
4242 * This write notifies the controller that one or more IUs are
4243 * available to be processed.
4244 */
4245 writel(iq_pi, queue_group->iq_pi[path]);
4246 }
4247
4248 spin_unlock_irqrestore(&queue_group->submit_lock[path], flags);
4249}
4250
1f37e992
KB		 4251#define PQI_WAIT_FOR_COMPLETION_IO_TIMEOUT_SECS 10
4252
4253static int pqi_wait_for_completion_io(struct pqi_ctrl_info *ctrl_info,
4254 struct completion *wait)
4255{
4256 int rc;
1f37e992
KB		 4257
4258 while (1) {
4259 if (wait_for_completion_io_timeout(wait,
4fd22c13 4260 PQI_WAIT_FOR_COMPLETION_IO_TIMEOUT_SECS * PQI_HZ)) {
1f37e992
KB		 4261 rc = 0;
4262 break;
4263 }
4264
4265 pqi_check_ctrl_health(ctrl_info);
4266 if (pqi_ctrl_offline(ctrl_info)) {
4267 rc = -ENXIO;
4268 break;
4269 }
1f37e992
KB		 4270 }
4271
4272 return rc;
4273}
4274
6c223761
KB		 4275static void pqi_raid_synchronous_complete(struct pqi_io_request *io_request,
4276 void *context)
4277{
4278 struct completion *waiting = context;
4279
4280 complete(waiting);
4281}
4282
694c5d5b
KB		 4283static int pqi_process_raid_io_error_synchronous(
4284 struct pqi_raid_error_info *error_info)
26b390ab
KB		 4285{
4286 int rc = -EIO;
4287
4288 switch (error_info->data_out_result) {
4289 case PQI_DATA_IN_OUT_GOOD:
4290 if (error_info->status == SAM_STAT_GOOD)
4291 rc = 0;
4292 break;
4293 case PQI_DATA_IN_OUT_UNDERFLOW:
4294 if (error_info->status == SAM_STAT_GOOD ||
4295 error_info->status == SAM_STAT_CHECK_CONDITION)
4296 rc = 0;
4297 break;
4298 case PQI_DATA_IN_OUT_ABORTED:
4299 rc = PQI_CMD_STATUS_ABORTED;
4300 break;
4301 }
4302
4303 return rc;
4304}
4305
ae0c189d
KB		 4306static inline bool pqi_is_blockable_request(struct pqi_iu_header *request)
4307{
4308 return (request->driver_flags & PQI_DRIVER_NONBLOCKABLE_REQUEST) == 0;
4309}
4310
6c223761
KB		 4311static int pqi_submit_raid_request_synchronous(struct pqi_ctrl_info *ctrl_info,
4312 struct pqi_iu_header *request, unsigned int flags,
ae0c189d 4313 struct pqi_raid_error_info *error_info)
6c223761 4314{
957c5ab1 4315 int rc = 0;
6c223761 4316 struct pqi_io_request *io_request;
6c223761 4317 size_t iu_length;
957c5ab1 4318 DECLARE_COMPLETION_ONSTACK(wait);
6c223761 4319
6c223761
KB		 4320 if (flags & PQI_SYNC_FLAGS_INTERRUPTABLE) {
4321 if (down_interruptible(&ctrl_info->sync_request_sem))
4322 return -ERESTARTSYS;
4323 } else {
ae0c189d 4324 down(&ctrl_info->sync_request_sem);
6c223761
KB		 4325 }
4326
7561a7e4 4327 pqi_ctrl_busy(ctrl_info);
ae0c189d
KB		 4328 /*
4329 * Wait for other admin queue updates such as;
4330 * config table changes, OFA memory updates, ...
4331 */
4332 if (pqi_is_blockable_request(request))
4333 pqi_wait_if_ctrl_blocked(ctrl_info);
7561a7e4 4334
376fb880
KB		 4335 if (pqi_ctrl_offline(ctrl_info)) {
4336 rc = -ENXIO;
4337 goto out;
4338 }
4339
6c223761
KB		 4340 io_request = pqi_alloc_io_request(ctrl_info);
4341
4342 put_unaligned_le16(io_request->index,
4343 &(((struct pqi_raid_path_request *)request)->request_id));
4344
4345 if (request->iu_type == PQI_REQUEST_IU_RAID_PATH_IO)
4346 ((struct pqi_raid_path_request *)request)->error_index =
4347 ((struct pqi_raid_path_request *)request)->request_id;
4348
4349 iu_length = get_unaligned_le16(&request->iu_length) +
4350 PQI_REQUEST_HEADER_LENGTH;
4351 memcpy(io_request->iu, request, iu_length);
4352
957c5ab1
KB		 4353 io_request->io_complete_callback = pqi_raid_synchronous_complete;
4354 io_request->context = &wait;
4355
583891c9 4356 pqi_start_io(ctrl_info, &ctrl_info->queue_groups[PQI_DEFAULT_QUEUE_GROUP], RAID_PATH,
957c5ab1
KB		 4357 io_request);
4358
ae0c189d 4359 pqi_wait_for_completion_io(ctrl_info, &wait);
6c223761
KB		 4360
4361 if (error_info) {
4362 if (io_request->error_info)
583891c9 4363 memcpy(error_info, io_request->error_info, sizeof(*error_info));
6c223761
KB		 4364 else
4365 memset(error_info, 0, sizeof(*error_info));
4366 } else if (rc == 0 && io_request->error_info) {
583891c9 4367 rc = pqi_process_raid_io_error_synchronous(io_request->error_info);
6c223761
KB		 4368 }
4369
4370 pqi_free_io_request(io_request);
4371
7561a7e4 4372out:
ae0c189d 4373 pqi_ctrl_unbusy(ctrl_info);
6c223761
KB		 4374 up(&ctrl_info->sync_request_sem);
4375
4376 return rc;
4377}
4378
4379static int pqi_validate_admin_response(
4380 struct pqi_general_admin_response *response, u8 expected_function_code)
4381{
4382 if (response->header.iu_type != PQI_RESPONSE_IU_GENERAL_ADMIN)
4383 return -EINVAL;
4384
4385 if (get_unaligned_le16(&response->header.iu_length) !=
4386 PQI_GENERAL_ADMIN_IU_LENGTH)
4387 return -EINVAL;
4388
4389 if (response->function_code != expected_function_code)
4390 return -EINVAL;
4391
4392 if (response->status != PQI_GENERAL_ADMIN_STATUS_SUCCESS)
4393 return -EINVAL;
4394
4395 return 0;
4396}
4397
4398static int pqi_submit_admin_request_synchronous(
4399 struct pqi_ctrl_info *ctrl_info,
4400 struct pqi_general_admin_request *request,
4401 struct pqi_general_admin_response *response)
4402{
4403 int rc;
4404
4405 pqi_submit_admin_request(ctrl_info, request);
4406
4407 rc = pqi_poll_for_admin_response(ctrl_info, response);
4408
4409 if (rc == 0)
ae0c189d 4410 rc = pqi_validate_admin_response(response, request->function_code);
6c223761
KB		 4411
4412 return rc;
4413}
4414
4415static int pqi_report_device_capability(struct pqi_ctrl_info *ctrl_info)
4416{
4417 int rc;
4418 struct pqi_general_admin_request request;
4419 struct pqi_general_admin_response response;
4420 struct pqi_device_capability *capability;
4421 struct pqi_iu_layer_descriptor *sop_iu_layer_descriptor;
4422
4423 capability = kmalloc(sizeof(*capability), GFP_KERNEL);
4424 if (!capability)
4425 return -ENOMEM;
4426
4427 memset(&request, 0, sizeof(request));
4428
4429 request.header.iu_type = PQI_REQUEST_IU_GENERAL_ADMIN;
4430 put_unaligned_le16(PQI_GENERAL_ADMIN_IU_LENGTH,
4431 &request.header.iu_length);
4432 request.function_code =
4433 PQI_GENERAL_ADMIN_FUNCTION_REPORT_DEVICE_CAPABILITY;
4434 put_unaligned_le32(sizeof(*capability),
4435 &request.data.report_device_capability.buffer_length);
4436
4437 rc = pqi_map_single(ctrl_info->pci_dev,
4438 &request.data.report_device_capability.sg_descriptor,
4439 capability, sizeof(*capability),
6917a9cc 4440 DMA_FROM_DEVICE);
6c223761
KB		 4441 if (rc)
4442 goto out;
4443
583891c9 4444 rc = pqi_submit_admin_request_synchronous(ctrl_info, &request, &response);
6c223761
KB		 4445
4446 pqi_pci_unmap(ctrl_info->pci_dev,
4447 &request.data.report_device_capability.sg_descriptor, 1,
6917a9cc 4448 DMA_FROM_DEVICE);
6c223761
KB		 4449
4450 if (rc)
4451 goto out;
4452
4453 if (response.status != PQI_GENERAL_ADMIN_STATUS_SUCCESS) {
4454 rc = -EIO;
4455 goto out;
4456 }
4457
4458 ctrl_info->max_inbound_queues =
4459 get_unaligned_le16(&capability->max_inbound_queues);
4460 ctrl_info->max_elements_per_iq =
4461 get_unaligned_le16(&capability->max_elements_per_iq);
4462 ctrl_info->max_iq_element_length =
4463 get_unaligned_le16(&capability->max_iq_element_length)
4464 * 16;
4465 ctrl_info->max_outbound_queues =
4466 get_unaligned_le16(&capability->max_outbound_queues);
4467 ctrl_info->max_elements_per_oq =
4468 get_unaligned_le16(&capability->max_elements_per_oq);
4469 ctrl_info->max_oq_element_length =
4470 get_unaligned_le16(&capability->max_oq_element_length)
4471 * 16;
4472
4473 sop_iu_layer_descriptor =
4474 &capability->iu_layer_descriptors[PQI_PROTOCOL_SOP];
4475
4476 ctrl_info->max_inbound_iu_length_per_firmware =
4477 get_unaligned_le16(
4478 &sop_iu_layer_descriptor->max_inbound_iu_length);
4479 ctrl_info->inbound_spanning_supported =
4480 sop_iu_layer_descriptor->inbound_spanning_supported;
4481 ctrl_info->outbound_spanning_supported =
4482 sop_iu_layer_descriptor->outbound_spanning_supported;
4483
4484out:
4485 kfree(capability);
4486
4487 return rc;
4488}
4489
4490static int pqi_validate_device_capability(struct pqi_ctrl_info *ctrl_info)
4491{
4492 if (ctrl_info->max_iq_element_length <
4493 PQI_OPERATIONAL_IQ_ELEMENT_LENGTH) {
4494 dev_err(&ctrl_info->pci_dev->dev,
4495 "max. inbound queue element length of %d is less than the required length of %d\n",
4496 ctrl_info->max_iq_element_length,
4497 PQI_OPERATIONAL_IQ_ELEMENT_LENGTH);
4498 return -EINVAL;
4499 }
4500
4501 if (ctrl_info->max_oq_element_length <
4502 PQI_OPERATIONAL_OQ_ELEMENT_LENGTH) {
4503 dev_err(&ctrl_info->pci_dev->dev,
4504 "max. outbound queue element length of %d is less than the required length of %d\n",
4505 ctrl_info->max_oq_element_length,
4506 PQI_OPERATIONAL_OQ_ELEMENT_LENGTH);
4507 return -EINVAL;
4508 }
4509
4510 if (ctrl_info->max_inbound_iu_length_per_firmware <
4511 PQI_OPERATIONAL_IQ_ELEMENT_LENGTH) {
4512 dev_err(&ctrl_info->pci_dev->dev,
4513 "max. inbound IU length of %u is less than the min. required length of %d\n",
4514 ctrl_info->max_inbound_iu_length_per_firmware,
4515 PQI_OPERATIONAL_IQ_ELEMENT_LENGTH);
4516 return -EINVAL;
4517 }
4518
77668f41
KB		 4519 if (!ctrl_info->inbound_spanning_supported) {
4520 dev_err(&ctrl_info->pci_dev->dev,
4521 "the controller does not support inbound spanning\n");
4522 return -EINVAL;
4523 }
4524
4525 if (ctrl_info->outbound_spanning_supported) {
4526 dev_err(&ctrl_info->pci_dev->dev,
4527 "the controller supports outbound spanning but this driver does not\n");
4528 return -EINVAL;
4529 }
4530
6c223761
KB		 4531 return 0;
4532}
4533
6c223761
KB		 4534static int pqi_create_event_queue(struct pqi_ctrl_info *ctrl_info)
4535{
4536 int rc;
4537 struct pqi_event_queue *event_queue;
4538 struct pqi_general_admin_request request;
4539 struct pqi_general_admin_response response;
4540
4541 event_queue = &ctrl_info->event_queue;
4542
4543 /*
4544 * Create OQ (Outbound Queue - device to host queue) to dedicate
4545 * to events.
4546 */
4547 memset(&request, 0, sizeof(request));
4548 request.header.iu_type = PQI_REQUEST_IU_GENERAL_ADMIN;
4549 put_unaligned_le16(PQI_GENERAL_ADMIN_IU_LENGTH,
4550 &request.header.iu_length);
4551 request.function_code = PQI_GENERAL_ADMIN_FUNCTION_CREATE_OQ;
4552 put_unaligned_le16(event_queue->oq_id,
4553 &request.data.create_operational_oq.queue_id);
4554 put_unaligned_le64((u64)event_queue->oq_element_array_bus_addr,
4555 &request.data.create_operational_oq.element_array_addr);
4556 put_unaligned_le64((u64)event_queue->oq_pi_bus_addr,
4557 &request.data.create_operational_oq.pi_addr);
4558 put_unaligned_le16(PQI_NUM_EVENT_QUEUE_ELEMENTS,
4559 &request.data.create_operational_oq.num_elements);
4560 put_unaligned_le16(PQI_EVENT_OQ_ELEMENT_LENGTH / 16,
4561 &request.data.create_operational_oq.element_length);
4562 request.data.create_operational_oq.queue_protocol = PQI_PROTOCOL_SOP;
4563 put_unaligned_le16(event_queue->int_msg_num,
4564 &request.data.create_operational_oq.int_msg_num);
4565
4566 rc = pqi_submit_admin_request_synchronous(ctrl_info, &request,
4567 &response);
4568 if (rc)
4569 return rc;
4570
4571 event_queue->oq_ci = ctrl_info->iomem_base +
4572 PQI_DEVICE_REGISTERS_OFFSET +
4573 get_unaligned_le64(
4574 &response.data.create_operational_oq.oq_ci_offset);
4575
4576 return 0;
4577}
4578
061ef06a
KB		 4579static int pqi_create_queue_group(struct pqi_ctrl_info *ctrl_info,
4580 unsigned int group_number)
6c223761 4581{
6c223761
KB		 4582 int rc;
4583 struct pqi_queue_group *queue_group;
4584 struct pqi_general_admin_request request;
4585 struct pqi_general_admin_response response;
4586
061ef06a 4587 queue_group = &ctrl_info->queue_groups[group_number];
6c223761
KB		 4588
4589 /*
4590 * Create IQ (Inbound Queue - host to device queue) for
4591 * RAID path.
4592 */
4593 memset(&request, 0, sizeof(request));
4594 request.header.iu_type = PQI_REQUEST_IU_GENERAL_ADMIN;
4595 put_unaligned_le16(PQI_GENERAL_ADMIN_IU_LENGTH,
4596 &request.header.iu_length);
4597 request.function_code = PQI_GENERAL_ADMIN_FUNCTION_CREATE_IQ;
4598 put_unaligned_le16(queue_group->iq_id[RAID_PATH],
4599 &request.data.create_operational_iq.queue_id);
4600 put_unaligned_le64(
4601 (u64)queue_group->iq_element_array_bus_addr[RAID_PATH],
4602 &request.data.create_operational_iq.element_array_addr);
4603 put_unaligned_le64((u64)queue_group->iq_ci_bus_addr[RAID_PATH],
4604 &request.data.create_operational_iq.ci_addr);
4605 put_unaligned_le16(ctrl_info->num_elements_per_iq,
4606 &request.data.create_operational_iq.num_elements);
4607 put_unaligned_le16(PQI_OPERATIONAL_IQ_ELEMENT_LENGTH / 16,
4608 &request.data.create_operational_iq.element_length);
4609 request.data.create_operational_iq.queue_protocol = PQI_PROTOCOL_SOP;
4610
4611 rc = pqi_submit_admin_request_synchronous(ctrl_info, &request,
4612 &response);
4613 if (rc) {
4614 dev_err(&ctrl_info->pci_dev->dev,
4615 "error creating inbound RAID queue\n");
4616 return rc;
4617 }
4618
4619 queue_group->iq_pi[RAID_PATH] = ctrl_info->iomem_base +
4620 PQI_DEVICE_REGISTERS_OFFSET +
4621 get_unaligned_le64(
4622 &response.data.create_operational_iq.iq_pi_offset);
4623
4624 /*
4625 * Create IQ (Inbound Queue - host to device queue) for
4626 * Advanced I/O (AIO) path.
4627 */
4628 memset(&request, 0, sizeof(request));
4629 request.header.iu_type = PQI_REQUEST_IU_GENERAL_ADMIN;
4630 put_unaligned_le16(PQI_GENERAL_ADMIN_IU_LENGTH,
4631 &request.header.iu_length);
4632 request.function_code = PQI_GENERAL_ADMIN_FUNCTION_CREATE_IQ;
4633 put_unaligned_le16(queue_group->iq_id[AIO_PATH],
4634 &request.data.create_operational_iq.queue_id);
4635 put_unaligned_le64((u64)queue_group->
4636 iq_element_array_bus_addr[AIO_PATH],
4637 &request.data.create_operational_iq.element_array_addr);
4638 put_unaligned_le64((u64)queue_group->iq_ci_bus_addr[AIO_PATH],
4639 &request.data.create_operational_iq.ci_addr);
4640 put_unaligned_le16(ctrl_info->num_elements_per_iq,
4641 &request.data.create_operational_iq.num_elements);
4642 put_unaligned_le16(PQI_OPERATIONAL_IQ_ELEMENT_LENGTH / 16,
4643 &request.data.create_operational_iq.element_length);
4644 request.data.create_operational_iq.queue_protocol = PQI_PROTOCOL_SOP;
4645
4646 rc = pqi_submit_admin_request_synchronous(ctrl_info, &request,
4647 &response);
4648 if (rc) {
4649 dev_err(&ctrl_info->pci_dev->dev,
4650 "error creating inbound AIO queue\n");
339faa81 4651 return rc;
6c223761
KB		 4652 }
4653
4654 queue_group->iq_pi[AIO_PATH] = ctrl_info->iomem_base +
4655 PQI_DEVICE_REGISTERS_OFFSET +
4656 get_unaligned_le64(
4657 &response.data.create_operational_iq.iq_pi_offset);
4658
4659 /*
4660 * Designate the 2nd IQ as the AIO path. By default, all IQs are
4661 * assumed to be for RAID path I/O unless we change the queue's
4662 * property.
4663 */
4664 memset(&request, 0, sizeof(request));
4665 request.header.iu_type = PQI_REQUEST_IU_GENERAL_ADMIN;
4666 put_unaligned_le16(PQI_GENERAL_ADMIN_IU_LENGTH,
4667 &request.header.iu_length);
4668 request.function_code = PQI_GENERAL_ADMIN_FUNCTION_CHANGE_IQ_PROPERTY;
4669 put_unaligned_le16(queue_group->iq_id[AIO_PATH],
4670 &request.data.change_operational_iq_properties.queue_id);
4671 put_unaligned_le32(PQI_IQ_PROPERTY_IS_AIO_QUEUE,
4672 &request.data.change_operational_iq_properties.vendor_specific);
4673
4674 rc = pqi_submit_admin_request_synchronous(ctrl_info, &request,
4675 &response);
4676 if (rc) {
4677 dev_err(&ctrl_info->pci_dev->dev,
4678 "error changing queue property\n");
339faa81 4679 return rc;
6c223761
KB		 4680 }
4681
4682 /*
4683 * Create OQ (Outbound Queue - device to host queue).
4684 */
4685 memset(&request, 0, sizeof(request));
4686 request.header.iu_type = PQI_REQUEST_IU_GENERAL_ADMIN;
4687 put_unaligned_le16(PQI_GENERAL_ADMIN_IU_LENGTH,
4688 &request.header.iu_length);
4689 request.function_code = PQI_GENERAL_ADMIN_FUNCTION_CREATE_OQ;
4690 put_unaligned_le16(queue_group->oq_id,
4691 &request.data.create_operational_oq.queue_id);
4692 put_unaligned_le64((u64)queue_group->oq_element_array_bus_addr,
4693 &request.data.create_operational_oq.element_array_addr);
4694 put_unaligned_le64((u64)queue_group->oq_pi_bus_addr,
4695 &request.data.create_operational_oq.pi_addr);
4696 put_unaligned_le16(ctrl_info->num_elements_per_oq,
4697 &request.data.create_operational_oq.num_elements);
4698 put_unaligned_le16(PQI_OPERATIONAL_OQ_ELEMENT_LENGTH / 16,
4699 &request.data.create_operational_oq.element_length);
4700 request.data.create_operational_oq.queue_protocol = PQI_PROTOCOL_SOP;
4701 put_unaligned_le16(queue_group->int_msg_num,
4702 &request.data.create_operational_oq.int_msg_num);
4703
4704 rc = pqi_submit_admin_request_synchronous(ctrl_info, &request,
4705 &response);
4706 if (rc) {
4707 dev_err(&ctrl_info->pci_dev->dev,
4708 "error creating outbound queue\n");
339faa81 4709 return rc;
6c223761
KB		 4710 }
4711
4712 queue_group->oq_ci = ctrl_info->iomem_base +
4713 PQI_DEVICE_REGISTERS_OFFSET +
4714 get_unaligned_le64(
4715 &response.data.create_operational_oq.oq_ci_offset);
4716
6c223761 4717 return 0;
6c223761
KB		 4718}
4719
4720static int pqi_create_queues(struct pqi_ctrl_info *ctrl_info)
4721{
4722 int rc;
4723 unsigned int i;
4724
4725 rc = pqi_create_event_queue(ctrl_info);
4726 if (rc) {
4727 dev_err(&ctrl_info->pci_dev->dev,
4728 "error creating event queue\n");
4729 return rc;
4730 }
4731
4732 for (i = 0; i < ctrl_info->num_queue_groups; i++) {
061ef06a 4733 rc = pqi_create_queue_group(ctrl_info, i);
6c223761
KB		 4734 if (rc) {
4735 dev_err(&ctrl_info->pci_dev->dev,
4736 "error creating queue group number %u/%u\n",
4737 i, ctrl_info->num_queue_groups);
4738 return rc;
4739 }
4740 }
4741
4742 return 0;
4743}
4744
4745#define PQI_REPORT_EVENT_CONFIG_BUFFER_LENGTH \
4746 (offsetof(struct pqi_event_config, descriptors) + \
4747 (PQI_MAX_EVENT_DESCRIPTORS * sizeof(struct pqi_event_descriptor)))
4748
6a50d6ad
KB		 4749static int pqi_configure_events(struct pqi_ctrl_info *ctrl_info,
4750 bool enable_events)
6c223761
KB		 4751{
4752 int rc;
4753 unsigned int i;
4754 struct pqi_event_config *event_config;
6a50d6ad 4755 struct pqi_event_descriptor *event_descriptor;
6c223761
KB		 4756 struct pqi_general_management_request request;
4757
4758 event_config = kmalloc(PQI_REPORT_EVENT_CONFIG_BUFFER_LENGTH,
4759 GFP_KERNEL);
4760 if (!event_config)
4761 return -ENOMEM;
4762
4763 memset(&request, 0, sizeof(request));
4764
4765 request.header.iu_type = PQI_REQUEST_IU_REPORT_VENDOR_EVENT_CONFIG;
4766 put_unaligned_le16(offsetof(struct pqi_general_management_request,
4767 data.report_event_configuration.sg_descriptors[1]) -
4768 PQI_REQUEST_HEADER_LENGTH, &request.header.iu_length);
4769 put_unaligned_le32(PQI_REPORT_EVENT_CONFIG_BUFFER_LENGTH,
4770 &request.data.report_event_configuration.buffer_length);
4771
4772 rc = pqi_map_single(ctrl_info->pci_dev,
4773 request.data.report_event_configuration.sg_descriptors,
4774 event_config, PQI_REPORT_EVENT_CONFIG_BUFFER_LENGTH,
6917a9cc 4775 DMA_FROM_DEVICE);
6c223761
KB		 4776 if (rc)
4777 goto out;
4778
ae0c189d 4779 rc = pqi_submit_raid_request_synchronous(ctrl_info, &request.header, 0, NULL);
6c223761
KB		 4780
4781 pqi_pci_unmap(ctrl_info->pci_dev,
4782 request.data.report_event_configuration.sg_descriptors, 1,
6917a9cc 4783 DMA_FROM_DEVICE);
6c223761
KB		 4784
4785 if (rc)
4786 goto out;
4787
6a50d6ad
KB		 4788 for (i = 0; i < event_config->num_event_descriptors; i++) {
4789 event_descriptor = &event_config->descriptors[i];
4790 if (enable_events &&
4791 pqi_is_supported_event(event_descriptor->event_type))
583891c9 4792 put_unaligned_le16(ctrl_info->event_queue.oq_id,
6a50d6ad
KB		 4793 &event_descriptor->oq_id);
4794 else
4795 put_unaligned_le16(0, &event_descriptor->oq_id);
4796 }
6c223761
KB		 4797
4798 memset(&request, 0, sizeof(request));
4799
4800 request.header.iu_type = PQI_REQUEST_IU_SET_VENDOR_EVENT_CONFIG;
4801 put_unaligned_le16(offsetof(struct pqi_general_management_request,
4802 data.report_event_configuration.sg_descriptors[1]) -
4803 PQI_REQUEST_HEADER_LENGTH, &request.header.iu_length);
4804 put_unaligned_le32(PQI_REPORT_EVENT_CONFIG_BUFFER_LENGTH,
4805 &request.data.report_event_configuration.buffer_length);
4806
4807 rc = pqi_map_single(ctrl_info->pci_dev,
4808 request.data.report_event_configuration.sg_descriptors,
4809 event_config, PQI_REPORT_EVENT_CONFIG_BUFFER_LENGTH,
6917a9cc 4810 DMA_TO_DEVICE);
6c223761
KB		 4811 if (rc)
4812 goto out;
4813
ae0c189d 4814 rc = pqi_submit_raid_request_synchronous(ctrl_info, &request.header, 0, NULL);
6c223761
KB		 4815
4816 pqi_pci_unmap(ctrl_info->pci_dev,
4817 request.data.report_event_configuration.sg_descriptors, 1,
6917a9cc 4818 DMA_TO_DEVICE);
6c223761
KB		 4819
4820out:
4821 kfree(event_config);
4822
4823 return rc;
4824}
4825
6a50d6ad
KB		 4826static inline int pqi_enable_events(struct pqi_ctrl_info *ctrl_info)
4827{
4828 return pqi_configure_events(ctrl_info, true);
4829}
4830
4831static inline int pqi_disable_events(struct pqi_ctrl_info *ctrl_info)
4832{
4833 return pqi_configure_events(ctrl_info, false);
4834}
4835
6c223761
KB		 4836static void pqi_free_all_io_requests(struct pqi_ctrl_info *ctrl_info)
4837{
4838 unsigned int i;
4839 struct device *dev;
4840 size_t sg_chain_buffer_length;
4841 struct pqi_io_request *io_request;
4842
4843 if (!ctrl_info->io_request_pool)
4844 return;
4845
4846 dev = &ctrl_info->pci_dev->dev;
4847 sg_chain_buffer_length = ctrl_info->sg_chain_buffer_length;
4848 io_request = ctrl_info->io_request_pool;
4849
4850 for (i = 0; i < ctrl_info->max_io_slots; i++) {
4851 kfree(io_request->iu);
4852 if (!io_request->sg_chain_buffer)
4853 break;
4854 dma_free_coherent(dev, sg_chain_buffer_length,
4855 io_request->sg_chain_buffer,
4856 io_request->sg_chain_buffer_dma_handle);
4857 io_request++;
4858 }
4859
4860 kfree(ctrl_info->io_request_pool);
4861 ctrl_info->io_request_pool = NULL;
4862}
4863
4864static inline int pqi_alloc_error_buffer(struct pqi_ctrl_info *ctrl_info)
4865{
694c5d5b
KB		 4866 ctrl_info->error_buffer = dma_alloc_coherent(&ctrl_info->pci_dev->dev,
4867 ctrl_info->error_buffer_length,
4868 &ctrl_info->error_buffer_dma_handle,
4869 GFP_KERNEL);
6c223761
KB		 4870 if (!ctrl_info->error_buffer)
4871 return -ENOMEM;
4872
4873 return 0;
4874}
4875
4876static int pqi_alloc_io_resources(struct pqi_ctrl_info *ctrl_info)
4877{
4878 unsigned int i;
4879 void *sg_chain_buffer;
4880 size_t sg_chain_buffer_length;
4881 dma_addr_t sg_chain_buffer_dma_handle;
4882 struct device *dev;
4883 struct pqi_io_request *io_request;
4884
583891c9
KB		 4885 ctrl_info->io_request_pool = kcalloc(ctrl_info->max_io_slots,
4886 sizeof(ctrl_info->io_request_pool[0]), GFP_KERNEL);
6c223761
KB		 4887
4888 if (!ctrl_info->io_request_pool) {
4889 dev_err(&ctrl_info->pci_dev->dev,
4890 "failed to allocate I/O request pool\n");
4891 goto error;
4892 }
4893
4894 dev = &ctrl_info->pci_dev->dev;
4895 sg_chain_buffer_length = ctrl_info->sg_chain_buffer_length;
4896 io_request = ctrl_info->io_request_pool;
4897
4898 for (i = 0; i < ctrl_info->max_io_slots; i++) {
583891c9 4899 io_request->iu = kmalloc(ctrl_info->max_inbound_iu_length, GFP_KERNEL);
6c223761
KB		 4900
4901 if (!io_request->iu) {
4902 dev_err(&ctrl_info->pci_dev->dev,
4903 "failed to allocate IU buffers\n");
4904 goto error;
4905 }
4906
4907 sg_chain_buffer = dma_alloc_coherent(dev,
4908 sg_chain_buffer_length, &sg_chain_buffer_dma_handle,
4909 GFP_KERNEL);
4910
4911 if (!sg_chain_buffer) {
4912 dev_err(&ctrl_info->pci_dev->dev,
4913 "failed to allocate PQI scatter-gather chain buffers\n");
4914 goto error;
4915 }
4916
4917 io_request->index = i;
4918 io_request->sg_chain_buffer = sg_chain_buffer;
583891c9 4919 io_request->sg_chain_buffer_dma_handle = sg_chain_buffer_dma_handle;
6c223761
KB		 4920 io_request++;
4921 }
4922
4923 return 0;
4924
4925error:
4926 pqi_free_all_io_requests(ctrl_info);
4927
4928 return -ENOMEM;
4929}
4930
4931/*
4932 * Calculate required resources that are sized based on max. outstanding
4933 * requests and max. transfer size.
4934 */
4935
4936static void pqi_calculate_io_resources(struct pqi_ctrl_info *ctrl_info)
4937{
4938 u32 max_transfer_size;
4939 u32 max_sg_entries;
4940
4941 ctrl_info->scsi_ml_can_queue =
4942 ctrl_info->max_outstanding_requests - PQI_RESERVED_IO_SLOTS;
4943 ctrl_info->max_io_slots = ctrl_info->max_outstanding_requests;
4944
4945 ctrl_info->error_buffer_length =
4946 ctrl_info->max_io_slots * PQI_ERROR_BUFFER_ELEMENT_LENGTH;
4947
d727a776
KB		 4948 if (reset_devices)
4949 max_transfer_size = min(ctrl_info->max_transfer_size,
4950 PQI_MAX_TRANSFER_SIZE_KDUMP);
4951 else
4952 max_transfer_size = min(ctrl_info->max_transfer_size,
4953 PQI_MAX_TRANSFER_SIZE);
6c223761
KB		 4954
4955 max_sg_entries = max_transfer_size / PAGE_SIZE;
4956
4957 /* +1 to cover when the buffer is not page-aligned. */
4958 max_sg_entries++;
4959
4960 max_sg_entries = min(ctrl_info->max_sg_entries, max_sg_entries);
4961
4962 max_transfer_size = (max_sg_entries - 1) * PAGE_SIZE;
4963
4964 ctrl_info->sg_chain_buffer_length =
e1d213bd
KB		 4965 (max_sg_entries * sizeof(struct pqi_sg_descriptor)) +
4966 PQI_EXTRA_SGL_MEMORY;
6c223761
KB		 4967 ctrl_info->sg_tablesize = max_sg_entries;
4968 ctrl_info->max_sectors = max_transfer_size / 512;
4969}
4970
4971static void pqi_calculate_queue_resources(struct pqi_ctrl_info *ctrl_info)
4972{
6c223761
KB		 4973 int num_queue_groups;
4974 u16 num_elements_per_iq;
4975 u16 num_elements_per_oq;
4976
d727a776
KB		 4977 if (reset_devices) {
4978 num_queue_groups = 1;
4979 } else {
4980 int num_cpus;
4981 int max_queue_groups;
4982
4983 max_queue_groups = min(ctrl_info->max_inbound_queues / 2,
4984 ctrl_info->max_outbound_queues - 1);
4985 max_queue_groups = min(max_queue_groups, PQI_MAX_QUEUE_GROUPS);
6c223761 4986
d727a776
KB		 4987 num_cpus = num_online_cpus();
4988 num_queue_groups = min(num_cpus, ctrl_info->max_msix_vectors);
4989 num_queue_groups = min(num_queue_groups, max_queue_groups);
4990 }
6c223761
KB		 4991
4992 ctrl_info->num_queue_groups = num_queue_groups;
061ef06a 4993 ctrl_info->max_hw_queue_index = num_queue_groups - 1;
6c223761 4994
77668f41
KB		 4995 /*
4996 * Make sure that the max. inbound IU length is an even multiple
4997 * of our inbound element length.
4998 */
4999 ctrl_info->max_inbound_iu_length =
5000 (ctrl_info->max_inbound_iu_length_per_firmware /
5001 PQI_OPERATIONAL_IQ_ELEMENT_LENGTH) *
5002 PQI_OPERATIONAL_IQ_ELEMENT_LENGTH;
6c223761
KB		 5003
5004 num_elements_per_iq =
5005 (ctrl_info->max_inbound_iu_length /
5006 PQI_OPERATIONAL_IQ_ELEMENT_LENGTH);
5007
5008 /* Add one because one element in each queue is unusable. */
5009 num_elements_per_iq++;
5010
5011 num_elements_per_iq = min(num_elements_per_iq,
5012 ctrl_info->max_elements_per_iq);
5013
5014 num_elements_per_oq = ((num_elements_per_iq - 1) * 2) + 1;
5015 num_elements_per_oq = min(num_elements_per_oq,
5016 ctrl_info->max_elements_per_oq);
5017
5018 ctrl_info->num_elements_per_iq = num_elements_per_iq;
5019 ctrl_info->num_elements_per_oq = num_elements_per_oq;
5020
5021 ctrl_info->max_sg_per_iu =
5022 ((ctrl_info->max_inbound_iu_length -
5023 PQI_OPERATIONAL_IQ_ELEMENT_LENGTH) /
5024 sizeof(struct pqi_sg_descriptor)) +
5025 PQI_MAX_EMBEDDED_SG_DESCRIPTORS;
6702d2c4
DB		 5026
5027 ctrl_info->max_sg_per_r56_iu =
5028 ((ctrl_info->max_inbound_iu_length -
5029 PQI_OPERATIONAL_IQ_ELEMENT_LENGTH) /
5030 sizeof(struct pqi_sg_descriptor)) +
5031 PQI_MAX_EMBEDDED_R56_SG_DESCRIPTORS;
6c223761
KB		 5032}
5033
583891c9
KB		 5034static inline void pqi_set_sg_descriptor(struct pqi_sg_descriptor *sg_descriptor,
5035 struct scatterlist *sg)
6c223761
KB		 5036{
5037 u64 address = (u64)sg_dma_address(sg);
5038 unsigned int length = sg_dma_len(sg);
5039
5040 put_unaligned_le64(address, &sg_descriptor->address);
5041 put_unaligned_le32(length, &sg_descriptor->length);
5042 put_unaligned_le32(0, &sg_descriptor->flags);
5043}
5044
1a22bc4b
DB		 5045static unsigned int pqi_build_sg_list(struct pqi_sg_descriptor *sg_descriptor,
5046 struct scatterlist *sg, int sg_count, struct pqi_io_request *io_request,
5047 int max_sg_per_iu, bool *chained)
5048{
5049 int i;
5050 unsigned int num_sg_in_iu;
5051
5052 *chained = false;
5053 i = 0;
5054 num_sg_in_iu = 0;
5055 max_sg_per_iu--; /* Subtract 1 to leave room for chain marker. */
5056
5057 while (1) {
5058 pqi_set_sg_descriptor(sg_descriptor, sg);
5059 if (!*chained)
5060 num_sg_in_iu++;
5061 i++;
5062 if (i == sg_count)
5063 break;
5064 sg_descriptor++;
5065 if (i == max_sg_per_iu) {
5066 put_unaligned_le64((u64)io_request->sg_chain_buffer_dma_handle,
5067 &sg_descriptor->address);
5068 put_unaligned_le32((sg_count - num_sg_in_iu) * sizeof(*sg_descriptor),
5069 &sg_descriptor->length);
5070 put_unaligned_le32(CISS_SG_CHAIN, &sg_descriptor->flags);
5071 *chained = true;
5072 num_sg_in_iu++;
5073 sg_descriptor = io_request->sg_chain_buffer;
5074 }
5075 sg = sg_next(sg);
5076 }
5077
5078 put_unaligned_le32(CISS_SG_LAST, &sg_descriptor->flags);
5079
5080 return num_sg_in_iu;
5081}
5082
6c223761
KB		 5083static int pqi_build_raid_sg_list(struct pqi_ctrl_info *ctrl_info,
5084 struct pqi_raid_path_request *request, struct scsi_cmnd *scmd,
5085 struct pqi_io_request *io_request)
5086{
6c223761
KB		 5087 u16 iu_length;
5088 int sg_count;
5089 bool chained;
5090 unsigned int num_sg_in_iu;
6c223761
KB		 5091 struct scatterlist *sg;
5092 struct pqi_sg_descriptor *sg_descriptor;
5093
5094 sg_count = scsi_dma_map(scmd);
5095 if (sg_count < 0)
5096 return sg_count;
5097
5098 iu_length = offsetof(struct pqi_raid_path_request, sg_descriptors) -
5099 PQI_REQUEST_HEADER_LENGTH;
5100
5101 if (sg_count == 0)
5102 goto out;
5103
5104 sg = scsi_sglist(scmd);
5105 sg_descriptor = request->sg_descriptors;
6c223761 5106
1a22bc4b
DB		 5107 num_sg_in_iu = pqi_build_sg_list(sg_descriptor, sg, sg_count, io_request,
5108 ctrl_info->max_sg_per_iu, &chained);
6c223761 5109
6c223761
KB		 5110 request->partial = chained;
5111 iu_length += num_sg_in_iu * sizeof(*sg_descriptor);
5112
5113out:
5114 put_unaligned_le16(iu_length, &request->header.iu_length);
5115
5116 return 0;
5117}
5118
7a012c23
DB		 5119static int pqi_build_aio_r1_sg_list(struct pqi_ctrl_info *ctrl_info,
5120 struct pqi_aio_r1_path_request *request, struct scsi_cmnd *scmd,
5121 struct pqi_io_request *io_request)
5122{
5123 u16 iu_length;
5124 int sg_count;
5125 bool chained;
5126 unsigned int num_sg_in_iu;
5127 struct scatterlist *sg;
5128 struct pqi_sg_descriptor *sg_descriptor;
5129
5130 sg_count = scsi_dma_map(scmd);
5131 if (sg_count < 0)
5132 return sg_count;
5133
5134 iu_length = offsetof(struct pqi_aio_r1_path_request, sg_descriptors) -
5135 PQI_REQUEST_HEADER_LENGTH;
5136 num_sg_in_iu = 0;
5137
5138 if (sg_count == 0)
5139 goto out;
5140
5141 sg = scsi_sglist(scmd);
5142 sg_descriptor = request->sg_descriptors;
5143
5144 num_sg_in_iu = pqi_build_sg_list(sg_descriptor, sg, sg_count, io_request,
5145 ctrl_info->max_sg_per_iu, &chained);
5146
5147 request->partial = chained;
5148 iu_length += num_sg_in_iu * sizeof(*sg_descriptor);
5149
5150out:
5151 put_unaligned_le16(iu_length, &request->header.iu_length);
5152 request->num_sg_descriptors = num_sg_in_iu;
5153
5154 return 0;
5155}
5156
6702d2c4
DB		 5157static int pqi_build_aio_r56_sg_list(struct pqi_ctrl_info *ctrl_info,
5158 struct pqi_aio_r56_path_request *request, struct scsi_cmnd *scmd,
5159 struct pqi_io_request *io_request)
5160{
5161 u16 iu_length;
5162 int sg_count;
5163 bool chained;
5164 unsigned int num_sg_in_iu;
5165 struct scatterlist *sg;
5166 struct pqi_sg_descriptor *sg_descriptor;
5167
5168 sg_count = scsi_dma_map(scmd);
5169 if (sg_count < 0)
5170 return sg_count;
5171
5172 iu_length = offsetof(struct pqi_aio_r56_path_request, sg_descriptors) -
5173 PQI_REQUEST_HEADER_LENGTH;
5174 num_sg_in_iu = 0;
5175
5176 if (sg_count != 0) {
5177 sg = scsi_sglist(scmd);
5178 sg_descriptor = request->sg_descriptors;
5179
5180 num_sg_in_iu = pqi_build_sg_list(sg_descriptor, sg, sg_count, io_request,
5181 ctrl_info->max_sg_per_r56_iu, &chained);
5182
5183 request->partial = chained;
5184 iu_length += num_sg_in_iu * sizeof(*sg_descriptor);
5185 }
5186
5187 put_unaligned_le16(iu_length, &request->header.iu_length);
5188 request->num_sg_descriptors = num_sg_in_iu;
5189
5190 return 0;
5191}
5192
6c223761
KB		 5193static int pqi_build_aio_sg_list(struct pqi_ctrl_info *ctrl_info,
5194 struct pqi_aio_path_request *request, struct scsi_cmnd *scmd,
5195 struct pqi_io_request *io_request)
5196{
6c223761
KB		 5197 u16 iu_length;
5198 int sg_count;
a60eec02
KB		 5199 bool chained;
5200 unsigned int num_sg_in_iu;
6c223761
KB		 5201 struct scatterlist *sg;
5202 struct pqi_sg_descriptor *sg_descriptor;
5203
5204 sg_count = scsi_dma_map(scmd);
5205 if (sg_count < 0)
5206 return sg_count;
a60eec02
KB		 5207
5208 iu_length = offsetof(struct pqi_aio_path_request, sg_descriptors) -
5209 PQI_REQUEST_HEADER_LENGTH;
5210 num_sg_in_iu = 0;
5211
6c223761
KB		 5212 if (sg_count == 0)
5213 goto out;
5214
a60eec02
KB		 5215 sg = scsi_sglist(scmd);
5216 sg_descriptor = request->sg_descriptors;
a60eec02 5217
1a22bc4b
DB		 5218 num_sg_in_iu = pqi_build_sg_list(sg_descriptor, sg, sg_count, io_request,
5219 ctrl_info->max_sg_per_iu, &chained);
6c223761 5220
a60eec02 5221 request->partial = chained;
6c223761 5222 iu_length += num_sg_in_iu * sizeof(*sg_descriptor);
a60eec02
KB		 5223
5224out:
6c223761
KB		 5225 put_unaligned_le16(iu_length, &request->header.iu_length);
5226 request->num_sg_descriptors = num_sg_in_iu;
5227
5228 return 0;
5229}
5230
5231static void pqi_raid_io_complete(struct pqi_io_request *io_request,
5232 void *context)
5233{
5234 struct scsi_cmnd *scmd;
5235
5236 scmd = io_request->scmd;
5237 pqi_free_io_request(io_request);
5238 scsi_dma_unmap(scmd);
5239 pqi_scsi_done(scmd);
5240}
5241
376fb880
KB		 5242static int pqi_raid_submit_scsi_cmd_with_io_request(
5243 struct pqi_ctrl_info *ctrl_info, struct pqi_io_request *io_request,
6c223761
KB		 5244 struct pqi_scsi_dev *device, struct scsi_cmnd *scmd,
5245 struct pqi_queue_group *queue_group)
5246{
5247 int rc;
5248 size_t cdb_length;
6c223761
KB		 5249 struct pqi_raid_path_request *request;
5250
6c223761
KB		 5251 io_request->io_complete_callback = pqi_raid_io_complete;
5252 io_request->scmd = scmd;
5253
6c223761 5254 request = io_request->iu;
583891c9 5255 memset(request, 0, offsetof(struct pqi_raid_path_request, sg_descriptors));
6c223761
KB		 5256
5257 request->header.iu_type = PQI_REQUEST_IU_RAID_PATH_IO;
5258 put_unaligned_le32(scsi_bufflen(scmd), &request->buffer_length);
5259 request->task_attribute = SOP_TASK_ATTRIBUTE_SIMPLE;
5260 put_unaligned_le16(io_request->index, &request->request_id);
5261 request->error_index = request->request_id;
583891c9 5262 memcpy(request->lun_number, device->scsi3addr, sizeof(request->lun_number));
6c223761
KB		 5263
5264 cdb_length = min_t(size_t, scmd->cmd_len, sizeof(request->cdb));
5265 memcpy(request->cdb, scmd->cmnd, cdb_length);
5266
5267 switch (cdb_length) {
5268 case 6:
5269 case 10:
5270 case 12:
5271 case 16:
583891c9 5272 request->additional_cdb_bytes_usage = SOP_ADDITIONAL_CDB_BYTES_0;
6c223761
KB		 5273 break;
5274 case 20:
583891c9 5275 request->additional_cdb_bytes_usage = SOP_ADDITIONAL_CDB_BYTES_4;
6c223761
KB		 5276 break;
5277 case 24:
583891c9 5278 request->additional_cdb_bytes_usage = SOP_ADDITIONAL_CDB_BYTES_8;
6c223761
KB		 5279 break;
5280 case 28:
583891c9 5281 request->additional_cdb_bytes_usage = SOP_ADDITIONAL_CDB_BYTES_12;
6c223761
KB		 5282 break;
5283 case 32:
5284 default:
583891c9 5285 request->additional_cdb_bytes_usage = SOP_ADDITIONAL_CDB_BYTES_16;
6c223761
KB		 5286 break;
5287 }
5288
5289 switch (scmd->sc_data_direction) {
5290 case DMA_TO_DEVICE:
5291 request->data_direction = SOP_READ_FLAG;
5292 break;
5293 case DMA_FROM_DEVICE:
5294 request->data_direction = SOP_WRITE_FLAG;
5295 break;
5296 case DMA_NONE:
5297 request->data_direction = SOP_NO_DIRECTION_FLAG;
5298 break;
5299 case DMA_BIDIRECTIONAL:
5300 request->data_direction = SOP_BIDIRECTIONAL;
5301 break;
5302 default:
5303 dev_err(&ctrl_info->pci_dev->dev,
5304 "unknown data direction: %d\n",
5305 scmd->sc_data_direction);
6c223761
KB		 5306 break;
5307 }
5308
5309 rc = pqi_build_raid_sg_list(ctrl_info, request, scmd, io_request);
5310 if (rc) {
5311 pqi_free_io_request(io_request);
5312 return SCSI_MLQUEUE_HOST_BUSY;
5313 }
5314
5315 pqi_start_io(ctrl_info, queue_group, RAID_PATH, io_request);
5316
5317 return 0;
5318}
5319
376fb880
KB		 5320static inline int pqi_raid_submit_scsi_cmd(struct pqi_ctrl_info *ctrl_info,
5321 struct pqi_scsi_dev *device, struct scsi_cmnd *scmd,
5322 struct pqi_queue_group *queue_group)
5323{
5324 struct pqi_io_request *io_request;
5325
5326 io_request = pqi_alloc_io_request(ctrl_info);
5327
5328 return pqi_raid_submit_scsi_cmd_with_io_request(ctrl_info, io_request,
5329 device, scmd, queue_group);
5330}
5331
376fb880
KB		 5332static bool pqi_raid_bypass_retry_needed(struct pqi_io_request *io_request)
5333{
5334 struct scsi_cmnd *scmd;
03b288cf 5335 struct pqi_scsi_dev *device;
376fb880
KB		 5336 struct pqi_ctrl_info *ctrl_info;
5337
5338 if (!io_request->raid_bypass)
5339 return false;
5340
5341 scmd = io_request->scmd;
5342 if ((scmd->result & 0xff) == SAM_STAT_GOOD)
5343 return false;
5344 if (host_byte(scmd->result) == DID_NO_CONNECT)
5345 return false;
5346
03b288cf 5347 device = scmd->device->hostdata;
5be9db06 5348 if (pqi_device_offline(device) || pqi_device_in_remove(device))
03b288cf
KB		 5349 return false;
5350
376fb880
KB		 5351 ctrl_info = shost_to_hba(scmd->device->host);
5352 if (pqi_ctrl_offline(ctrl_info))
5353 return false;
5354
5355 return true;
5356}
5357
6c223761
KB		 5358static void pqi_aio_io_complete(struct pqi_io_request *io_request,
5359 void *context)
5360{
5361 struct scsi_cmnd *scmd;
5362
5363 scmd = io_request->scmd;
5364 scsi_dma_unmap(scmd);
5be9db06 5365 if (io_request->status == -EAGAIN || pqi_raid_bypass_retry_needed(io_request)) {
6c223761 5366 set_host_byte(scmd, DID_IMM_RETRY);
5be9db06 5367 scmd->SCp.this_residual++;
376fb880 5368 }
5be9db06 5369
6c223761
KB		 5370 pqi_free_io_request(io_request);
5371 pqi_scsi_done(scmd);
5372}
5373
5374static inline int pqi_aio_submit_scsi_cmd(struct pqi_ctrl_info *ctrl_info,
5375 struct pqi_scsi_dev *device, struct scsi_cmnd *scmd,
5376 struct pqi_queue_group *queue_group)
5377{
5378 return pqi_aio_submit_io(ctrl_info, scmd, device->aio_handle,
376fb880 5379 scmd->cmnd, scmd->cmd_len, queue_group, NULL, false);
6c223761
KB		 5380}
5381
5382static int pqi_aio_submit_io(struct pqi_ctrl_info *ctrl_info,
5383 struct scsi_cmnd *scmd, u32 aio_handle, u8 *cdb,
5384 unsigned int cdb_length, struct pqi_queue_group *queue_group,
376fb880 5385 struct pqi_encryption_info *encryption_info, bool raid_bypass)
6c223761
KB		 5386{
5387 int rc;
5388 struct pqi_io_request *io_request;
5389 struct pqi_aio_path_request *request;
5390
5391 io_request = pqi_alloc_io_request(ctrl_info);
5392 io_request->io_complete_callback = pqi_aio_io_complete;
5393 io_request->scmd = scmd;
376fb880 5394 io_request->raid_bypass = raid_bypass;
6c223761
KB		 5395
5396 request = io_request->iu;
583891c9 5397 memset(request, 0, offsetof(struct pqi_raid_path_request, sg_descriptors));
6c223761
KB		 5398
5399 request->header.iu_type = PQI_REQUEST_IU_AIO_PATH_IO;
5400 put_unaligned_le32(aio_handle, &request->nexus_id);
5401 put_unaligned_le32(scsi_bufflen(scmd), &request->buffer_length);
5402 request->task_attribute = SOP_TASK_ATTRIBUTE_SIMPLE;
5403 put_unaligned_le16(io_request->index, &request->request_id);
5404 request->error_index = request->request_id;
5405 if (cdb_length > sizeof(request->cdb))
5406 cdb_length = sizeof(request->cdb);
5407 request->cdb_length = cdb_length;
5408 memcpy(request->cdb, cdb, cdb_length);
5409
5410 switch (scmd->sc_data_direction) {
5411 case DMA_TO_DEVICE:
5412 request->data_direction = SOP_READ_FLAG;
5413 break;
5414 case DMA_FROM_DEVICE:
5415 request->data_direction = SOP_WRITE_FLAG;
5416 break;
5417 case DMA_NONE:
5418 request->data_direction = SOP_NO_DIRECTION_FLAG;
5419 break;
5420 case DMA_BIDIRECTIONAL:
5421 request->data_direction = SOP_BIDIRECTIONAL;
5422 break;
5423 default:
5424 dev_err(&ctrl_info->pci_dev->dev,
5425 "unknown data direction: %d\n",
5426 scmd->sc_data_direction);
6c223761
KB		 5427 break;
5428 }
5429
5430 if (encryption_info) {
5431 request->encryption_enable = true;
5432 put_unaligned_le16(encryption_info->data_encryption_key_index,
5433 &request->data_encryption_key_index);
5434 put_unaligned_le32(encryption_info->encrypt_tweak_lower,
5435 &request->encrypt_tweak_lower);
5436 put_unaligned_le32(encryption_info->encrypt_tweak_upper,
5437 &request->encrypt_tweak_upper);
5438 }
5439
5440 rc = pqi_build_aio_sg_list(ctrl_info, request, scmd, io_request);
5441 if (rc) {
5442 pqi_free_io_request(io_request);
5443 return SCSI_MLQUEUE_HOST_BUSY;
5444 }
5445
5446 pqi_start_io(ctrl_info, queue_group, AIO_PATH, io_request);
5447
5448 return 0;
5449}
5450
7a012c23
DB		 5451static int pqi_aio_submit_r1_write_io(struct pqi_ctrl_info *ctrl_info,
5452 struct scsi_cmnd *scmd, struct pqi_queue_group *queue_group,
5453 struct pqi_encryption_info *encryption_info, struct pqi_scsi_dev *device,
5454 struct pqi_scsi_dev_raid_map_data *rmd)
7a012c23
DB		 5455{
5456 int rc;
5457 struct pqi_io_request *io_request;
5458 struct pqi_aio_r1_path_request *r1_request;
5459
5460 io_request = pqi_alloc_io_request(ctrl_info);
5461 io_request->io_complete_callback = pqi_aio_io_complete;
5462 io_request->scmd = scmd;
5463 io_request->raid_bypass = true;
5464
5465 r1_request = io_request->iu;
5466 memset(r1_request, 0, offsetof(struct pqi_aio_r1_path_request, sg_descriptors));
5467
5468 r1_request->header.iu_type = PQI_REQUEST_IU_AIO_PATH_RAID1_IO;
7a012c23
DB		 5469 put_unaligned_le16(*(u16 *)device->scsi3addr & 0x3fff, &r1_request->volume_id);
5470 r1_request->num_drives = rmd->num_it_nexus_entries;
5471 put_unaligned_le32(rmd->it_nexus[0], &r1_request->it_nexus_1);
5472 put_unaligned_le32(rmd->it_nexus[1], &r1_request->it_nexus_2);
5473 if (rmd->num_it_nexus_entries == 3)
5474 put_unaligned_le32(rmd->it_nexus[2], &r1_request->it_nexus_3);
5475
5476 put_unaligned_le32(scsi_bufflen(scmd), &r1_request->data_length);
5477 r1_request->task_attribute = SOP_TASK_ATTRIBUTE_SIMPLE;
5478 put_unaligned_le16(io_request->index, &r1_request->request_id);
5479 r1_request->error_index = r1_request->request_id;
5480 if (rmd->cdb_length > sizeof(r1_request->cdb))
5481 rmd->cdb_length = sizeof(r1_request->cdb);
5482 r1_request->cdb_length = rmd->cdb_length;
5483 memcpy(r1_request->cdb, rmd->cdb, rmd->cdb_length);
5484
5485 /* The direction is always write. */
5486 r1_request->data_direction = SOP_READ_FLAG;
5487
5488 if (encryption_info) {
5489 r1_request->encryption_enable = true;
5490 put_unaligned_le16(encryption_info->data_encryption_key_index,
5491 &r1_request->data_encryption_key_index);
5492 put_unaligned_le32(encryption_info->encrypt_tweak_lower,
5493 &r1_request->encrypt_tweak_lower);
5494 put_unaligned_le32(encryption_info->encrypt_tweak_upper,
5495 &r1_request->encrypt_tweak_upper);
5496 }
5497
5498 rc = pqi_build_aio_r1_sg_list(ctrl_info, r1_request, scmd, io_request);
5499 if (rc) {
5500 pqi_free_io_request(io_request);
5501 return SCSI_MLQUEUE_HOST_BUSY;
5502 }
5503
5504 pqi_start_io(ctrl_info, queue_group, AIO_PATH, io_request);
5505
5506 return 0;
5507}
5508
6702d2c4
DB		 5509static int pqi_aio_submit_r56_write_io(struct pqi_ctrl_info *ctrl_info,
5510 struct scsi_cmnd *scmd, struct pqi_queue_group *queue_group,
5511 struct pqi_encryption_info *encryption_info, struct pqi_scsi_dev *device,
5512 struct pqi_scsi_dev_raid_map_data *rmd)
5513{
5514 int rc;
5515 struct pqi_io_request *io_request;
5516 struct pqi_aio_r56_path_request *r56_request;
5517
5518 io_request = pqi_alloc_io_request(ctrl_info);
5519 io_request->io_complete_callback = pqi_aio_io_complete;
5520 io_request->scmd = scmd;
5521 io_request->raid_bypass = true;
5522
5523 r56_request = io_request->iu;
5524 memset(r56_request, 0, offsetof(struct pqi_aio_r56_path_request, sg_descriptors));
5525
5526 if (device->raid_level == SA_RAID_5 || device->raid_level == SA_RAID_51)
5527 r56_request->header.iu_type = PQI_REQUEST_IU_AIO_PATH_RAID5_IO;
5528 else
5529 r56_request->header.iu_type = PQI_REQUEST_IU_AIO_PATH_RAID6_IO;
5530
5531 put_unaligned_le16(*(u16 *)device->scsi3addr & 0x3fff, &r56_request->volume_id);
5532 put_unaligned_le32(rmd->aio_handle, &r56_request->data_it_nexus);
5533 put_unaligned_le32(rmd->p_parity_it_nexus, &r56_request->p_parity_it_nexus);
5534 if (rmd->raid_level == SA_RAID_6) {
5535 put_unaligned_le32(rmd->q_parity_it_nexus, &r56_request->q_parity_it_nexus);
5536 r56_request->xor_multiplier = rmd->xor_mult;
5537 }
5538 put_unaligned_le32(scsi_bufflen(scmd), &r56_request->data_length);
5539 r56_request->task_attribute = SOP_TASK_ATTRIBUTE_SIMPLE;
5540 put_unaligned_le64(rmd->row, &r56_request->row);
5541
5542 put_unaligned_le16(io_request->index, &r56_request->request_id);
5543 r56_request->error_index = r56_request->request_id;
5544
5545 if (rmd->cdb_length > sizeof(r56_request->cdb))
5546 rmd->cdb_length = sizeof(r56_request->cdb);
5547 r56_request->cdb_length = rmd->cdb_length;
5548 memcpy(r56_request->cdb, rmd->cdb, rmd->cdb_length);
5549
5550 /* The direction is always write. */
5551 r56_request->data_direction = SOP_READ_FLAG;
5552
5553 if (encryption_info) {
5554 r56_request->encryption_enable = true;
5555 put_unaligned_le16(encryption_info->data_encryption_key_index,
5556 &r56_request->data_encryption_key_index);
5557 put_unaligned_le32(encryption_info->encrypt_tweak_lower,
5558 &r56_request->encrypt_tweak_lower);
5559 put_unaligned_le32(encryption_info->encrypt_tweak_upper,
5560 &r56_request->encrypt_tweak_upper);
5561 }
5562
5563 rc = pqi_build_aio_r56_sg_list(ctrl_info, r56_request, scmd, io_request);
5564 if (rc) {
5565 pqi_free_io_request(io_request);
5566 return SCSI_MLQUEUE_HOST_BUSY;
5567 }
5568
5569 pqi_start_io(ctrl_info, queue_group, AIO_PATH, io_request);
5570
5571 return 0;
5572}
5573
061ef06a
KB		 5574static inline u16 pqi_get_hw_queue(struct pqi_ctrl_info *ctrl_info,
5575 struct scsi_cmnd *scmd)
5576{
5577 u16 hw_queue;
5578
5579 hw_queue = blk_mq_unique_tag_to_hwq(blk_mq_unique_tag(scmd->request));
5580 if (hw_queue > ctrl_info->max_hw_queue_index)
5581 hw_queue = 0;
5582
5583 return hw_queue;
5584}
5585
5be9db06
KB		 5586static inline bool pqi_is_bypass_eligible_request(struct scsi_cmnd *scmd)
5587{
5588 if (blk_rq_is_passthrough(scmd->request))
5589 return false;
5590
5591 return scmd->SCp.this_residual == 0;
5592}
5593
7561a7e4
KB		 5594/*
5595 * This function gets called just before we hand the completed SCSI request
5596 * back to the SML.
5597 */
5598
5599void pqi_prep_for_scsi_done(struct scsi_cmnd *scmd)
5600{
5601 struct pqi_scsi_dev *device;
5602
1e46731e
MR		 5603 if (!scmd->device) {
5604 set_host_byte(scmd, DID_NO_CONNECT);
5605 return;
5606 }
5607
7561a7e4 5608 device = scmd->device->hostdata;
1e46731e
MR		 5609 if (!device) {
5610 set_host_byte(scmd, DID_NO_CONNECT);
5611 return;
5612 }
5613
7561a7e4
KB		 5614 atomic_dec(&device->scsi_cmds_outstanding);
5615}
5616
c7ffedb3 5617static bool pqi_is_parity_write_stream(struct pqi_ctrl_info *ctrl_info,
7d81d2b8 5618 struct scsi_cmnd *scmd)
c7ffedb3
DB		 5619{
5620 u32 oldest_jiffies;
5621 u8 lru_index;
5622 int i;
5623 int rc;
5624 struct pqi_scsi_dev *device;
5625 struct pqi_stream_data *pqi_stream_data;
5626 struct pqi_scsi_dev_raid_map_data rmd;
5627
5628 if (!ctrl_info->enable_stream_detection)
5629 return false;
5630
5631 rc = pqi_get_aio_lba_and_block_count(scmd, &rmd);
5632 if (rc)
5633 return false;
5634
5635 /* Check writes only. */
5636 if (!rmd.is_write)
5637 return false;
5638
5639 device = scmd->device->hostdata;
5640
5641 /* Check for RAID 5/6 streams. */
5642 if (device->raid_level != SA_RAID_5 && device->raid_level != SA_RAID_6)
5643 return false;
5644
5645 /*
5646 * If controller does not support AIO RAID{5,6} writes, need to send
5647 * requests down non-AIO path.
5648 */
5649 if ((device->raid_level == SA_RAID_5 && !ctrl_info->enable_r5_writes) ||
5650 (device->raid_level == SA_RAID_6 && !ctrl_info->enable_r6_writes))
5651 return true;
5652
5653 lru_index = 0;
5654 oldest_jiffies = INT_MAX;
5655 for (i = 0; i < NUM_STREAMS_PER_LUN; i++) {
5656 pqi_stream_data = &device->stream_data[i];
5657 /*
5658 * Check for adjacent request or request is within
5659 * the previous request.
5660 */
5661 if ((pqi_stream_data->next_lba &&
5662 rmd.first_block >= pqi_stream_data->next_lba) &&
5663 rmd.first_block <= pqi_stream_data->next_lba +
5664 rmd.block_cnt) {
5665 pqi_stream_data->next_lba = rmd.first_block +
5666 rmd.block_cnt;
5667 pqi_stream_data->last_accessed = jiffies;
5668 return true;
5669 }
5670
5671 /* unused entry */
5672 if (pqi_stream_data->last_accessed == 0) {
5673 lru_index = i;
5674 break;
5675 }
5676
5677 /* Find entry with oldest last accessed time. */
5678 if (pqi_stream_data->last_accessed <= oldest_jiffies) {
5679 oldest_jiffies = pqi_stream_data->last_accessed;
5680 lru_index = i;
5681 }
5682 }
5683
5684 /* Set LRU entry. */
5685 pqi_stream_data = &device->stream_data[lru_index];
5686 pqi_stream_data->last_accessed = jiffies;
5687 pqi_stream_data->next_lba = rmd.first_block + rmd.block_cnt;
5688
5689 return false;
5690}
5691
5692static int pqi_scsi_queue_command(struct Scsi_Host *shost, struct scsi_cmnd *scmd)
6c223761
KB		 5693{
5694 int rc;
5695 struct pqi_ctrl_info *ctrl_info;
5696 struct pqi_scsi_dev *device;
061ef06a 5697 u16 hw_queue;
6c223761
KB		 5698 struct pqi_queue_group *queue_group;
5699 bool raid_bypassed;
5700
5701 device = scmd->device->hostdata;
6c223761 5702
1e46731e
MR		 5703 if (!device) {
5704 set_host_byte(scmd, DID_NO_CONNECT);
5705 pqi_scsi_done(scmd);
5706 return 0;
5707 }
5708
7561a7e4
KB		 5709 atomic_inc(&device->scsi_cmds_outstanding);
5710
583891c9
KB		 5711 ctrl_info = shost_to_hba(shost);
5712
1bdf6e93 5713 if (pqi_ctrl_offline(ctrl_info) || pqi_device_in_remove(device)) {
6c223761
KB		 5714 set_host_byte(scmd, DID_NO_CONNECT);
5715 pqi_scsi_done(scmd);
5716 return 0;
5717 }
5718
5be9db06 5719 if (pqi_ctrl_blocked(ctrl_info)) {
7561a7e4
KB		 5720 rc = SCSI_MLQUEUE_HOST_BUSY;
5721 goto out;
5722 }
5723
7d81d2b8
KB		 5724 /*
5725 * This is necessary because the SML doesn't zero out this field during
5726 * error recovery.
5727 */
5728 scmd->result = 0;
5729
061ef06a
KB		 5730 hw_queue = pqi_get_hw_queue(ctrl_info, scmd);
5731 queue_group = &ctrl_info->queue_groups[hw_queue];
6c223761
KB		 5732
5733 if (pqi_is_logical_device(device)) {
5734 raid_bypassed = false;
588a63fe 5735 if (device->raid_bypass_enabled &&
5be9db06
KB		 5736 pqi_is_bypass_eligible_request(scmd) &&
5737 !pqi_is_parity_write_stream(ctrl_info, scmd)) {
5738 rc = pqi_raid_bypass_submit_scsi_cmd(ctrl_info, device, scmd, queue_group);
5739 if (rc == 0 || rc == SCSI_MLQUEUE_HOST_BUSY) {
5740 raid_bypassed = true;
5741 atomic_inc(&device->raid_bypass_cnt);
8b664fef 5742 }
6c223761
KB		 5743 }
5744 if (!raid_bypassed)
8b664fef 5745 rc = pqi_raid_submit_scsi_cmd(ctrl_info, device, scmd, queue_group);
6c223761
KB		 5746 } else {
5747 if (device->aio_enabled)
8b664fef 5748 rc = pqi_aio_submit_scsi_cmd(ctrl_info, device, scmd, queue_group);
6c223761 5749 else
8b664fef 5750 rc = pqi_raid_submit_scsi_cmd(ctrl_info, device, scmd, queue_group);
6c223761
KB		 5751 }
5752
7561a7e4 5753out:
7561a7e4
KB		 5754 if (rc)
5755 atomic_dec(&device->scsi_cmds_outstanding);
5756
6c223761
KB		 5757 return rc;
5758}
5759
7561a7e4
KB		 5760static int pqi_wait_until_queued_io_drained(struct pqi_ctrl_info *ctrl_info,
5761 struct pqi_queue_group *queue_group)
5762{
5763 unsigned int path;
5764 unsigned long flags;
5765 bool list_is_empty;
5766
5767 for (path = 0; path < 2; path++) {
5768 while (1) {
5769 spin_lock_irqsave(
5770 &queue_group->submit_lock[path], flags);
5771 list_is_empty =
5772 list_empty(&queue_group->request_list[path]);
5773 spin_unlock_irqrestore(
5774 &queue_group->submit_lock[path], flags);
5775 if (list_is_empty)
5776 break;
5777 pqi_check_ctrl_health(ctrl_info);
5778 if (pqi_ctrl_offline(ctrl_info))
5779 return -ENXIO;
5780 usleep_range(1000, 2000);
5781 }
5782 }
5783
5784 return 0;
5785}
5786
5787static int pqi_wait_until_inbound_queues_empty(struct pqi_ctrl_info *ctrl_info)
5788{
5789 int rc;
5790 unsigned int i;
5791 unsigned int path;
5792 struct pqi_queue_group *queue_group;
5793 pqi_index_t iq_pi;
5794 pqi_index_t iq_ci;
5795
5796 for (i = 0; i < ctrl_info->num_queue_groups; i++) {
5797 queue_group = &ctrl_info->queue_groups[i];
5798
5799 rc = pqi_wait_until_queued_io_drained(ctrl_info, queue_group);
5800 if (rc)
5801 return rc;
5802
5803 for (path = 0; path < 2; path++) {
5804 iq_pi = queue_group->iq_pi_copy[path];
5805
5806 while (1) {
dac12fbc 5807 iq_ci = readl(queue_group->iq_ci[path]);
7561a7e4
KB		 5808 if (iq_ci == iq_pi)
5809 break;
5810 pqi_check_ctrl_health(ctrl_info);
5811 if (pqi_ctrl_offline(ctrl_info))
5812 return -ENXIO;
5813 usleep_range(1000, 2000);
5814 }
5815 }
5816 }
5817
5818 return 0;
5819}
5820
5821static void pqi_fail_io_queued_for_device(struct pqi_ctrl_info *ctrl_info,
5822 struct pqi_scsi_dev *device)
5823{
5824 unsigned int i;
5825 unsigned int path;
5826 struct pqi_queue_group *queue_group;
5827 unsigned long flags;
5828 struct pqi_io_request *io_request;
5829 struct pqi_io_request *next;
5830 struct scsi_cmnd *scmd;
5831 struct pqi_scsi_dev *scsi_device;
5832
5833 for (i = 0; i < ctrl_info->num_queue_groups; i++) {
5834 queue_group = &ctrl_info->queue_groups[i];
5835
5836 for (path = 0; path < 2; path++) {
5837 spin_lock_irqsave(
5838 &queue_group->submit_lock[path], flags);
5839
5840 list_for_each_entry_safe(io_request, next,
5841 &queue_group->request_list[path],
5842 request_list_entry) {
583891c9 5843
7561a7e4
KB		 5844 scmd = io_request->scmd;
5845 if (!scmd)
5846 continue;
5847
5848 scsi_device = scmd->device->hostdata;
5849 if (scsi_device != device)
5850 continue;
5851
5852 list_del(&io_request->request_list_entry);
5853 set_host_byte(scmd, DID_RESET);
b622a601
MB		 5854 pqi_free_io_request(io_request);
5855 scsi_dma_unmap(scmd);
7561a7e4
KB		 5856 pqi_scsi_done(scmd);
5857 }
5858
5859 spin_unlock_irqrestore(
5860 &queue_group->submit_lock[path], flags);
5861 }
5862 }
5863}
5864
18ff5f08
KB		 5865#define PQI_PENDING_IO_WARNING_TIMEOUT_SECS 10
5866
061ef06a 5867static int pqi_device_wait_for_pending_io(struct pqi_ctrl_info *ctrl_info,
18ff5f08 5868 struct pqi_scsi_dev *device, unsigned long timeout_msecs)
061ef06a 5869{
18ff5f08
KB		 5870 int cmds_outstanding;
5871 unsigned long start_jiffies;
5872 unsigned long warning_timeout;
5873 unsigned long msecs_waiting;
1e46731e 5874
18ff5f08
KB		 5875 start_jiffies = jiffies;
5876 warning_timeout = (PQI_PENDING_IO_WARNING_TIMEOUT_SECS * PQI_HZ) + start_jiffies;
061ef06a 5877
18ff5f08 5878 while ((cmds_outstanding = atomic_read(&device->scsi_cmds_outstanding)) > 0) {
061ef06a
KB		 5879 pqi_check_ctrl_health(ctrl_info);
5880 if (pqi_ctrl_offline(ctrl_info))
5881 return -ENXIO;
18ff5f08
KB		 5882 msecs_waiting = jiffies_to_msecs(jiffies - start_jiffies);
5883 if (msecs_waiting > timeout_msecs) {
5884 dev_err(&ctrl_info->pci_dev->dev,
5885 "scsi %d:%d:%d:%d: timed out after %lu seconds waiting for %d outstanding command(s)\n",
5886 ctrl_info->scsi_host->host_no, device->bus, device->target,
5887 device->lun, msecs_waiting / 1000, cmds_outstanding);
5888 return -ETIMEDOUT;
5889 }
5890 if (time_after(jiffies, warning_timeout)) {
5891 dev_warn(&ctrl_info->pci_dev->dev,
5892 "scsi %d:%d:%d:%d: waiting %lu seconds for %d outstanding command(s)\n",
5893 ctrl_info->scsi_host->host_no, device->bus, device->target,
5894 device->lun, msecs_waiting / 1000, cmds_outstanding);
5895 warning_timeout = (PQI_PENDING_IO_WARNING_TIMEOUT_SECS * PQI_HZ) + jiffies;
4fd22c13 5896 }
061ef06a
KB		 5897 usleep_range(1000, 2000);
5898 }
5899
5900 return 0;
5901}
5902
14bb215d
KB		 5903static void pqi_lun_reset_complete(struct pqi_io_request *io_request,
5904 void *context)
6c223761 5905{
14bb215d 5906 struct completion *waiting = context;
6c223761 5907
14bb215d
KB		 5908 complete(waiting);
5909}
6c223761 5910
c2922f17 5911#define PQI_LUN_RESET_POLL_COMPLETION_SECS 10
14bb215d
KB		 5912
5913static int pqi_wait_for_lun_reset_completion(struct pqi_ctrl_info *ctrl_info,
5914 struct pqi_scsi_dev *device, struct completion *wait)
5915{
5916 int rc;
18ff5f08
KB		 5917 unsigned int wait_secs;
5918
5919 wait_secs = 0;
14bb215d
KB		 5920
5921 while (1) {
5922 if (wait_for_completion_io_timeout(wait,
c2922f17 5923 PQI_LUN_RESET_POLL_COMPLETION_SECS * PQI_HZ)) {
14bb215d
KB		 5924 rc = 0;
5925 break;
6c223761
KB		 5926 }
5927
14bb215d
KB		 5928 pqi_check_ctrl_health(ctrl_info);
5929 if (pqi_ctrl_offline(ctrl_info)) {
4e8415e3 5930 rc = -ENXIO;
14bb215d
KB		 5931 break;
5932 }
18ff5f08
KB		 5933
5934 wait_secs += PQI_LUN_RESET_POLL_COMPLETION_SECS;
5935
5936 dev_warn(&ctrl_info->pci_dev->dev,
5937 "scsi %d:%d:%d:%d: waiting %u seconds for LUN reset to complete\n",
5938 ctrl_info->scsi_host->host_no, device->bus, device->target, device->lun,
5939 wait_secs);
6c223761 5940 }
6c223761 5941
14bb215d 5942 return rc;
6c223761
KB		 5943}
5944
18ff5f08
KB		 5945#define PQI_LUN_RESET_FIRMWARE_TIMEOUT_SECS 30
5946
5947static int pqi_lun_reset(struct pqi_ctrl_info *ctrl_info, struct pqi_scsi_dev *device)
6c223761
KB		 5948{
5949 int rc;
5950 struct pqi_io_request *io_request;
5951 DECLARE_COMPLETION_ONSTACK(wait);
5952 struct pqi_task_management_request *request;
5953
6c223761 5954 io_request = pqi_alloc_io_request(ctrl_info);
14bb215d 5955 io_request->io_complete_callback = pqi_lun_reset_complete;
6c223761
KB		 5956 io_request->context = &wait;
5957
5958 request = io_request->iu;
5959 memset(request, 0, sizeof(*request));
5960
5961 request->header.iu_type = PQI_REQUEST_IU_TASK_MANAGEMENT;
5962 put_unaligned_le16(sizeof(*request) - PQI_REQUEST_HEADER_LENGTH,
5963 &request->header.iu_length);
5964 put_unaligned_le16(io_request->index, &request->request_id);
5965 memcpy(request->lun_number, device->scsi3addr,
5966 sizeof(request->lun_number));
5967 request->task_management_function = SOP_TASK_MANAGEMENT_LUN_RESET;
c2922f17 5968 if (ctrl_info->tmf_iu_timeout_supported)
18ff5f08 5969 put_unaligned_le16(PQI_LUN_RESET_FIRMWARE_TIMEOUT_SECS, &request->timeout);
6c223761 5970
583891c9 5971 pqi_start_io(ctrl_info, &ctrl_info->queue_groups[PQI_DEFAULT_QUEUE_GROUP], RAID_PATH,
6c223761
KB		 5972 io_request);
5973
14bb215d
KB		 5974 rc = pqi_wait_for_lun_reset_completion(ctrl_info, device, &wait);
5975 if (rc == 0)
6c223761 5976 rc = io_request->status;
6c223761
KB		 5977
5978 pqi_free_io_request(io_request);
6c223761
KB		 5979
5980 return rc;
5981}
5982
18ff5f08
KB		 5983#define PQI_LUN_RESET_RETRIES 3
5984#define PQI_LUN_RESET_RETRY_INTERVAL_MSECS (10 * 1000)
5985#define PQI_LUN_RESET_PENDING_IO_TIMEOUT_MSECS (10 * 60 * 1000)
5986#define PQI_LUN_RESET_FAILED_PENDING_IO_TIMEOUT_MSECS (2 * 60 * 1000)
6c223761 5987
18ff5f08 5988static int pqi_lun_reset_with_retries(struct pqi_ctrl_info *ctrl_info, struct pqi_scsi_dev *device)
6c223761 5989{
18ff5f08
KB		 5990 int reset_rc;
5991 int wait_rc;
3406384b 5992 unsigned int retries;
18ff5f08 5993 unsigned long timeout_msecs;
6c223761 5994
3406384b 5995 for (retries = 0;;) {
18ff5f08
KB		 5996 reset_rc = pqi_lun_reset(ctrl_info, device);
5997 if (reset_rc == 0 || ++retries > PQI_LUN_RESET_RETRIES)
3406384b
MR		 5998 break;
5999 msleep(PQI_LUN_RESET_RETRY_INTERVAL_MSECS);
6000 }
429fab70 6001
18ff5f08
KB		 6002 timeout_msecs = reset_rc ? PQI_LUN_RESET_FAILED_PENDING_IO_TIMEOUT_MSECS :
6003 PQI_LUN_RESET_PENDING_IO_TIMEOUT_MSECS;
4fd22c13 6004
18ff5f08
KB		 6005 wait_rc = pqi_device_wait_for_pending_io(ctrl_info, device, timeout_msecs);
6006 if (wait_rc && reset_rc == 0)
6007 reset_rc = wait_rc;
6c223761 6008
18ff5f08 6009 return reset_rc == 0 ? SUCCESS : FAILED;
6c223761
KB		 6010}
6011
4fd22c13
MR		 6012static int pqi_device_reset(struct pqi_ctrl_info *ctrl_info,
6013 struct pqi_scsi_dev *device)
6014{
6015 int rc;
6016
4fd22c13
MR		 6017 pqi_ctrl_block_requests(ctrl_info);
6018 pqi_ctrl_wait_until_quiesced(ctrl_info);
6019 pqi_fail_io_queued_for_device(ctrl_info, device);
6020 rc = pqi_wait_until_inbound_queues_empty(ctrl_info);
4fd22c13
MR		 6021 if (rc)
6022 rc = FAILED;
6023 else
37f33181
KB		 6024 rc = pqi_lun_reset_with_retries(ctrl_info, device);
6025 pqi_ctrl_unblock_requests(ctrl_info);
429fab70 6026
4fd22c13
MR		 6027 return rc;
6028}
6029
6c223761
KB		 6030static int pqi_eh_device_reset_handler(struct scsi_cmnd *scmd)
6031{
6032 int rc;
7561a7e4 6033 struct Scsi_Host *shost;
6c223761
KB		 6034 struct pqi_ctrl_info *ctrl_info;
6035 struct pqi_scsi_dev *device;
6036
7561a7e4
KB		 6037 shost = scmd->device->host;
6038 ctrl_info = shost_to_hba(shost);
6c223761
KB		 6039 device = scmd->device->hostdata;
6040
37f33181
KB		 6041 mutex_lock(&ctrl_info->lun_reset_mutex);
6042
6c223761
KB		 6043 dev_err(&ctrl_info->pci_dev->dev,
6044 "resetting scsi %d:%d:%d:%d\n",
7561a7e4 6045 shost->host_no, device->bus, device->target, device->lun);
6c223761 6046
7561a7e4 6047 pqi_check_ctrl_health(ctrl_info);
37f33181 6048 if (pqi_ctrl_offline(ctrl_info))
7561a7e4 6049 rc = FAILED;
37f33181
KB		 6050 else
6051 rc = pqi_device_reset(ctrl_info, device);
429fab70 6052
6c223761
KB		 6053 dev_err(&ctrl_info->pci_dev->dev,
6054 "reset of scsi %d:%d:%d:%d: %s\n",
7561a7e4 6055 shost->host_no, device->bus, device->target, device->lun,
6c223761
KB		 6056 rc == SUCCESS ? "SUCCESS" : "FAILED");
6057
37f33181
KB		 6058 mutex_unlock(&ctrl_info->lun_reset_mutex);
6059
6c223761
KB		 6060 return rc;
6061}
6062
6063static int pqi_slave_alloc(struct scsi_device *sdev)
6064{
6065 struct pqi_scsi_dev *device;
6066 unsigned long flags;
6067 struct pqi_ctrl_info *ctrl_info;
6068 struct scsi_target *starget;
6069 struct sas_rphy *rphy;
6070
6071 ctrl_info = shost_to_hba(sdev->host);
6072
6073 spin_lock_irqsave(&ctrl_info->scsi_device_list_lock, flags);
6074
6075 if (sdev_channel(sdev) == PQI_PHYSICAL_DEVICE_BUS) {
6076 starget = scsi_target(sdev);
6077 rphy = target_to_rphy(starget);
6078 device = pqi_find_device_by_sas_rphy(ctrl_info, rphy);
6079 if (device) {
6080 device->target = sdev_id(sdev);
6081 device->lun = sdev->lun;
6082 device->target_lun_valid = true;
6083 }
6084 } else {
6085 device = pqi_find_scsi_dev(ctrl_info, sdev_channel(sdev),
6086 sdev_id(sdev), sdev->lun);
6087 }
6088
94086f5b 6089 if (device) {
6c223761
KB		 6090 sdev->hostdata = device;
6091 device->sdev = sdev;
6092 if (device->queue_depth) {
6093 device->advertised_queue_depth = device->queue_depth;
6094 scsi_change_queue_depth(sdev,
6095 device->advertised_queue_depth);
6096 }
99a12b48 6097 if (pqi_is_logical_device(device)) {
b6e2ef67 6098 pqi_disable_write_same(sdev);
99a12b48 6099 } else {
2b447f81 6100 sdev->allow_restart = 1;
99a12b48
KB		 6101 if (device->device_type == SA_DEVICE_TYPE_NVME)
6102 pqi_disable_write_same(sdev);
6103 }
6c223761
KB		 6104 }
6105
6106 spin_unlock_irqrestore(&ctrl_info->scsi_device_list_lock, flags);
6107
6108 return 0;
6109}
6110
52198226
CH		 6111static int pqi_map_queues(struct Scsi_Host *shost)
6112{
6113 struct pqi_ctrl_info *ctrl_info = shost_to_hba(shost);
6114
79d3fa9e 6115 return blk_mq_pci_map_queues(&shost->tag_set.map[HCTX_TYPE_DEFAULT],
ed76e329 6116 ctrl_info->pci_dev, 0);
52198226
CH		 6117}
6118
ce143793
KB		 6119static int pqi_slave_configure(struct scsi_device *sdev)
6120{
6121 struct pqi_scsi_dev *device;
6122
6123 device = sdev->hostdata;
6124 device->devtype = sdev->type;
6125
6126 return 0;
6127}
6128
4d15ad38
KB		 6129static void pqi_slave_destroy(struct scsi_device *sdev)
6130{
6131 unsigned long flags;
6132 struct pqi_scsi_dev *device;
6133 struct pqi_ctrl_info *ctrl_info;
6134
6135 ctrl_info = shost_to_hba(sdev->host);
6136
6137 spin_lock_irqsave(&ctrl_info->scsi_device_list_lock, flags);
6138
6139 device = sdev->hostdata;
6140 if (device) {
6141 sdev->hostdata = NULL;
6142 if (!list_empty(&device->scsi_device_list_entry))
6143 list_del(&device->scsi_device_list_entry);
6144 }
6145
6146 spin_unlock_irqrestore(&ctrl_info->scsi_device_list_lock, flags);
6147
6148 if (device) {
6149 pqi_dev_info(ctrl_info, "removed", device);
6150 pqi_free_device(device);
6151 }
6152}
6153
8b664fef 6154static int pqi_getpciinfo_ioctl(struct pqi_ctrl_info *ctrl_info, void __user *arg)
6c223761
KB		 6155{
6156 struct pci_dev *pci_dev;
6157 u32 subsystem_vendor;
6158 u32 subsystem_device;
6159 cciss_pci_info_struct pciinfo;
6160
6161 if (!arg)
6162 return -EINVAL;
6163
6164 pci_dev = ctrl_info->pci_dev;
6165
6166 pciinfo.domain = pci_domain_nr(pci_dev->bus);
6167 pciinfo.bus = pci_dev->bus->number;
6168 pciinfo.dev_fn = pci_dev->devfn;
6169 subsystem_vendor = pci_dev->subsystem_vendor;
6170 subsystem_device = pci_dev->subsystem_device;
8b664fef 6171 pciinfo.board_id = ((subsystem_device << 16) & 0xffff0000) | subsystem_vendor;
6c223761
KB		 6172
6173 if (copy_to_user(arg, &pciinfo, sizeof(pciinfo)))
6174 return -EFAULT;
6175
6176 return 0;
6177}
6178
6179static int pqi_getdrivver_ioctl(void __user *arg)
6180{
6181 u32 version;
6182
6183 if (!arg)
6184 return -EINVAL;
6185
6186 version = (DRIVER_MAJOR << 28) | (DRIVER_MINOR << 24) |
6187 (DRIVER_RELEASE << 16) | DRIVER_REVISION;
6188
6189 if (copy_to_user(arg, &version, sizeof(version)))
6190 return -EFAULT;
6191
6192 return 0;
6193}
6194
6195struct ciss_error_info {
6196 u8 scsi_status;
6197 int command_status;
6198 size_t sense_data_length;
6199};
6200
6201static void pqi_error_info_to_ciss(struct pqi_raid_error_info *pqi_error_info,
6202 struct ciss_error_info *ciss_error_info)
6203{
6204 int ciss_cmd_status;
6205 size_t sense_data_length;
6206
6207 switch (pqi_error_info->data_out_result) {
6208 case PQI_DATA_IN_OUT_GOOD:
6209 ciss_cmd_status = CISS_CMD_STATUS_SUCCESS;
6210 break;
6211 case PQI_DATA_IN_OUT_UNDERFLOW:
6212 ciss_cmd_status = CISS_CMD_STATUS_DATA_UNDERRUN;
6213 break;
6214 case PQI_DATA_IN_OUT_BUFFER_OVERFLOW:
6215 ciss_cmd_status = CISS_CMD_STATUS_DATA_OVERRUN;
6216 break;
6217 case PQI_DATA_IN_OUT_PROTOCOL_ERROR:
6218 case PQI_DATA_IN_OUT_BUFFER_ERROR:
6219 case PQI_DATA_IN_OUT_BUFFER_OVERFLOW_DESCRIPTOR_AREA:
6220 case PQI_DATA_IN_OUT_BUFFER_OVERFLOW_BRIDGE:
6221 case PQI_DATA_IN_OUT_ERROR:
6222 ciss_cmd_status = CISS_CMD_STATUS_PROTOCOL_ERROR;
6223 break;
6224 case PQI_DATA_IN_OUT_HARDWARE_ERROR:
6225 case PQI_DATA_IN_OUT_PCIE_FABRIC_ERROR:
6226 case PQI_DATA_IN_OUT_PCIE_COMPLETION_TIMEOUT:
6227 case PQI_DATA_IN_OUT_PCIE_COMPLETER_ABORT_RECEIVED:
6228 case PQI_DATA_IN_OUT_PCIE_UNSUPPORTED_REQUEST_RECEIVED:
6229 case PQI_DATA_IN_OUT_PCIE_ECRC_CHECK_FAILED:
6230 case PQI_DATA_IN_OUT_PCIE_UNSUPPORTED_REQUEST:
6231 case PQI_DATA_IN_OUT_PCIE_ACS_VIOLATION:
6232 case PQI_DATA_IN_OUT_PCIE_TLP_PREFIX_BLOCKED:
6233 case PQI_DATA_IN_OUT_PCIE_POISONED_MEMORY_READ:
6234 ciss_cmd_status = CISS_CMD_STATUS_HARDWARE_ERROR;
6235 break;
6236 case PQI_DATA_IN_OUT_UNSOLICITED_ABORT:
6237 ciss_cmd_status = CISS_CMD_STATUS_UNSOLICITED_ABORT;
6238 break;
6239 case PQI_DATA_IN_OUT_ABORTED:
6240 ciss_cmd_status = CISS_CMD_STATUS_ABORTED;
6241 break;
6242 case PQI_DATA_IN_OUT_TIMEOUT:
6243 ciss_cmd_status = CISS_CMD_STATUS_TIMEOUT;
6244 break;
6245 default:
6246 ciss_cmd_status = CISS_CMD_STATUS_TARGET_STATUS;
6247 break;
6248 }
6249
6250 sense_data_length =
6251 get_unaligned_le16(&pqi_error_info->sense_data_length);
6252 if (sense_data_length == 0)
6253 sense_data_length =
6254 get_unaligned_le16(&pqi_error_info->response_data_length);
6255 if (sense_data_length)
6256 if (sense_data_length > sizeof(pqi_error_info->data))
6257 sense_data_length = sizeof(pqi_error_info->data);
6258
6259 ciss_error_info->scsi_status = pqi_error_info->status;
6260 ciss_error_info->command_status = ciss_cmd_status;
6261 ciss_error_info->sense_data_length = sense_data_length;
6262}
6263
6264static int pqi_passthru_ioctl(struct pqi_ctrl_info *ctrl_info, void __user *arg)
6265{
6266 int rc;
6267 char *kernel_buffer = NULL;
6268 u16 iu_length;
6269 size_t sense_data_length;
6270 IOCTL_Command_struct iocommand;
6271 struct pqi_raid_path_request request;
6272 struct pqi_raid_error_info pqi_error_info;
6273 struct ciss_error_info ciss_error_info;
6274
6275 if (pqi_ctrl_offline(ctrl_info))
6276 return -ENXIO;
2790cd4d
KB		 6277 if (pqi_ofa_in_progress(ctrl_info) && pqi_ctrl_blocked(ctrl_info))
6278 return -EBUSY;
6c223761
KB		 6279 if (!arg)
6280 return -EINVAL;
6281 if (!capable(CAP_SYS_RAWIO))
6282 return -EPERM;
6283 if (copy_from_user(&iocommand, arg, sizeof(iocommand)))
6284 return -EFAULT;
6285 if (iocommand.buf_size < 1 &&
6286 iocommand.Request.Type.Direction != XFER_NONE)
6287 return -EINVAL;
6288 if (iocommand.Request.CDBLen > sizeof(request.cdb))
6289 return -EINVAL;
6290 if (iocommand.Request.Type.Type != TYPE_CMD)
6291 return -EINVAL;
6292
6293 switch (iocommand.Request.Type.Direction) {
6294 case XFER_NONE:
6295 case XFER_WRITE:
6296 case XFER_READ:
41555d54 6297 case XFER_READ | XFER_WRITE:
6c223761
KB		 6298 break;
6299 default:
6300 return -EINVAL;
6301 }
6302
6303 if (iocommand.buf_size > 0) {
6304 kernel_buffer = kmalloc(iocommand.buf_size, GFP_KERNEL);
6305 if (!kernel_buffer)
6306 return -ENOMEM;
6307 if (iocommand.Request.Type.Direction & XFER_WRITE) {
6308 if (copy_from_user(kernel_buffer, iocommand.buf,
6309 iocommand.buf_size)) {
6310 rc = -EFAULT;
6311 goto out;
6312 }
6313 } else {
6314 memset(kernel_buffer, 0, iocommand.buf_size);
6315 }
6316 }
6317
6318 memset(&request, 0, sizeof(request));
6319
6320 request.header.iu_type = PQI_REQUEST_IU_RAID_PATH_IO;
6321 iu_length = offsetof(struct pqi_raid_path_request, sg_descriptors) -
6322 PQI_REQUEST_HEADER_LENGTH;
6323 memcpy(request.lun_number, iocommand.LUN_info.LunAddrBytes,
6324 sizeof(request.lun_number));
6325 memcpy(request.cdb, iocommand.Request.CDB, iocommand.Request.CDBLen);
6326 request.additional_cdb_bytes_usage = SOP_ADDITIONAL_CDB_BYTES_0;
6327
6328 switch (iocommand.Request.Type.Direction) {
6329 case XFER_NONE:
6330 request.data_direction = SOP_NO_DIRECTION_FLAG;
6331 break;
6332 case XFER_WRITE:
6333 request.data_direction = SOP_WRITE_FLAG;
6334 break;
6335 case XFER_READ:
6336 request.data_direction = SOP_READ_FLAG;
6337 break;
41555d54
KB		 6338 case XFER_READ | XFER_WRITE:
6339 request.data_direction = SOP_BIDIRECTIONAL;
6340 break;
6c223761
KB		 6341 }
6342
6343 request.task_attribute = SOP_TASK_ATTRIBUTE_SIMPLE;
6344
6345 if (iocommand.buf_size > 0) {
6346 put_unaligned_le32(iocommand.buf_size, &request.buffer_length);
6347
6348 rc = pqi_map_single(ctrl_info->pci_dev,
6349 &request.sg_descriptors[0], kernel_buffer,
6917a9cc 6350 iocommand.buf_size, DMA_BIDIRECTIONAL);
6c223761
KB		 6351 if (rc)
6352 goto out;
6353
6354 iu_length += sizeof(request.sg_descriptors[0]);
6355 }
6356
6357 put_unaligned_le16(iu_length, &request.header.iu_length);
6358
21432010 6359 if (ctrl_info->raid_iu_timeout_supported)
6360 put_unaligned_le32(iocommand.Request.Timeout, &request.timeout);
6361
6c223761 6362 rc = pqi_submit_raid_request_synchronous(ctrl_info, &request.header,
ae0c189d 6363 PQI_SYNC_FLAGS_INTERRUPTABLE, &pqi_error_info);
6c223761
KB		 6364
6365 if (iocommand.buf_size > 0)
6366 pqi_pci_unmap(ctrl_info->pci_dev, request.sg_descriptors, 1,
6917a9cc 6367 DMA_BIDIRECTIONAL);
6c223761
KB		 6368
6369 memset(&iocommand.error_info, 0, sizeof(iocommand.error_info));
6370
6371 if (rc == 0) {
6372 pqi_error_info_to_ciss(&pqi_error_info, &ciss_error_info);
6373 iocommand.error_info.ScsiStatus = ciss_error_info.scsi_status;
6374 iocommand.error_info.CommandStatus =
6375 ciss_error_info.command_status;
6376 sense_data_length = ciss_error_info.sense_data_length;
6377 if (sense_data_length) {
6378 if (sense_data_length >
6379 sizeof(iocommand.error_info.SenseInfo))
6380 sense_data_length =
6381 sizeof(iocommand.error_info.SenseInfo);
6382 memcpy(iocommand.error_info.SenseInfo,
6383 pqi_error_info.data, sense_data_length);
6384 iocommand.error_info.SenseLen = sense_data_length;
6385 }
6386 }
6387
6388 if (copy_to_user(arg, &iocommand, sizeof(iocommand))) {
6389 rc = -EFAULT;
6390 goto out;
6391 }
6392
6393 if (rc == 0 && iocommand.buf_size > 0 &&
6394 (iocommand.Request.Type.Direction & XFER_READ)) {
6395 if (copy_to_user(iocommand.buf, kernel_buffer,
6396 iocommand.buf_size)) {
6397 rc = -EFAULT;
6398 }
6399 }
6400
6401out:
6402 kfree(kernel_buffer);
6403
6404 return rc;
6405}
6406
6f4e626f
NC		 6407static int pqi_ioctl(struct scsi_device *sdev, unsigned int cmd,
6408 void __user *arg)
6c223761
KB		 6409{
6410 int rc;
6411 struct pqi_ctrl_info *ctrl_info;
6412
6413 ctrl_info = shost_to_hba(sdev->host);
6414
6415 switch (cmd) {
6416 case CCISS_DEREGDISK:
6417 case CCISS_REGNEWDISK:
6418 case CCISS_REGNEWD:
6419 rc = pqi_scan_scsi_devices(ctrl_info);
6420 break;
6421 case CCISS_GETPCIINFO:
6422 rc = pqi_getpciinfo_ioctl(ctrl_info, arg);
6423 break;
6424 case CCISS_GETDRIVVER:
6425 rc = pqi_getdrivver_ioctl(arg);
6426 break;
6427 case CCISS_PASSTHRU:
6428 rc = pqi_passthru_ioctl(ctrl_info, arg);
6429 break;
6430 default:
6431 rc = -EINVAL;
6432 break;
6433 }
6434
6435 return rc;
6436}
6437
6d90615f 6438static ssize_t pqi_firmware_version_show(struct device *dev,
6c223761
KB		 6439 struct device_attribute *attr, char *buffer)
6440{
6c223761
KB		 6441 struct Scsi_Host *shost;
6442 struct pqi_ctrl_info *ctrl_info;
6443
6444 shost = class_to_shost(dev);
6445 ctrl_info = shost_to_hba(shost);
6446
a4256252 6447 return scnprintf(buffer, PAGE_SIZE, "%s\n", ctrl_info->firmware_version);
6d90615f
MB		 6448}
6449
6450static ssize_t pqi_driver_version_show(struct device *dev,
6451 struct device_attribute *attr, char *buffer)
6452{
a4256252 6453 return scnprintf(buffer, PAGE_SIZE, "%s\n", DRIVER_VERSION BUILD_TIMESTAMP);
6d90615f 6454}
6c223761 6455
6d90615f
MB		 6456static ssize_t pqi_serial_number_show(struct device *dev,
6457 struct device_attribute *attr, char *buffer)
6458{
6459 struct Scsi_Host *shost;
6460 struct pqi_ctrl_info *ctrl_info;
6461
6462 shost = class_to_shost(dev);
6463 ctrl_info = shost_to_hba(shost);
6464
a4256252 6465 return scnprintf(buffer, PAGE_SIZE, "%s\n", ctrl_info->serial_number);
6d90615f
MB		 6466}
6467
6468static ssize_t pqi_model_show(struct device *dev,
6469 struct device_attribute *attr, char *buffer)
6470{
6471 struct Scsi_Host *shost;
6472 struct pqi_ctrl_info *ctrl_info;
6473
6474 shost = class_to_shost(dev);
6475 ctrl_info = shost_to_hba(shost);
6476
a4256252 6477 return scnprintf(buffer, PAGE_SIZE, "%s\n", ctrl_info->model);
6d90615f
MB		 6478}
6479
6480static ssize_t pqi_vendor_show(struct device *dev,
6481 struct device_attribute *attr, char *buffer)
6482{
6483 struct Scsi_Host *shost;
6484 struct pqi_ctrl_info *ctrl_info;
6485
6486 shost = class_to_shost(dev);
6487 ctrl_info = shost_to_hba(shost);
6488
a4256252 6489 return scnprintf(buffer, PAGE_SIZE, "%s\n", ctrl_info->vendor);
6c223761
KB		 6490}
6491
6492static ssize_t pqi_host_rescan_store(struct device *dev,
6493 struct device_attribute *attr, const char *buffer, size_t count)
6494{
6495 struct Scsi_Host *shost = class_to_shost(dev);
6496
6497 pqi_scan_start(shost);
6498
6499 return count;
6500}
6501
3c50976f
KB		 6502static ssize_t pqi_lockup_action_show(struct device *dev,
6503 struct device_attribute *attr, char *buffer)
6504{
6505 int count = 0;
6506 unsigned int i;
6507
6508 for (i = 0; i < ARRAY_SIZE(pqi_lockup_actions); i++) {
6509 if (pqi_lockup_actions[i].action == pqi_lockup_action)
181aea89 6510 count += scnprintf(buffer + count, PAGE_SIZE - count,
3c50976f
KB		 6511 "[%s] ", pqi_lockup_actions[i].name);
6512 else
181aea89 6513 count += scnprintf(buffer + count, PAGE_SIZE - count,
3c50976f
KB		 6514 "%s ", pqi_lockup_actions[i].name);
6515 }
6516
181aea89 6517 count += scnprintf(buffer + count, PAGE_SIZE - count, "\n");
3c50976f
KB		 6518
6519 return count;
6520}
6521
6522static ssize_t pqi_lockup_action_store(struct device *dev,
6523 struct device_attribute *attr, const char *buffer, size_t count)
6524{
6525 unsigned int i;
6526 char *action_name;
6527 char action_name_buffer[32];
6528
6529 strlcpy(action_name_buffer, buffer, sizeof(action_name_buffer));
6530 action_name = strstrip(action_name_buffer);
6531
6532 for (i = 0; i < ARRAY_SIZE(pqi_lockup_actions); i++) {
6533 if (strcmp(action_name, pqi_lockup_actions[i].name) == 0) {
6534 pqi_lockup_action = pqi_lockup_actions[i].action;
6535 return count;
6536 }
6537 }
6538
6539 return -EINVAL;
6540}
6541
5be746d7
DB		 6542static ssize_t pqi_host_enable_stream_detection_show(struct device *dev,
6543 struct device_attribute *attr, char *buffer)
6544{
6545 struct Scsi_Host *shost = class_to_shost(dev);
6546 struct pqi_ctrl_info *ctrl_info = shost_to_hba(shost);
6547
6548 return scnprintf(buffer, 10, "%x\n",
6549 ctrl_info->enable_stream_detection);
6550}
6551
6552static ssize_t pqi_host_enable_stream_detection_store(struct device *dev,
6553 struct device_attribute *attr, const char *buffer, size_t count)
6554{
6555 struct Scsi_Host *shost = class_to_shost(dev);
6556 struct pqi_ctrl_info *ctrl_info = shost_to_hba(shost);
6557 u8 set_stream_detection = 0;
6558
6559 if (kstrtou8(buffer, 0, &set_stream_detection))
6560 return -EINVAL;
6561
6562 if (set_stream_detection > 0)
6563 set_stream_detection = 1;
6564
6565 ctrl_info->enable_stream_detection = set_stream_detection;
6566
6567 return count;
6568}
6569
6702d2c4
DB		 6570static ssize_t pqi_host_enable_r5_writes_show(struct device *dev,
6571 struct device_attribute *attr, char *buffer)
6572{
6573 struct Scsi_Host *shost = class_to_shost(dev);
6574 struct pqi_ctrl_info *ctrl_info = shost_to_hba(shost);
6575
6576 return scnprintf(buffer, 10, "%x\n", ctrl_info->enable_r5_writes);
6577}
6578
6579static ssize_t pqi_host_enable_r5_writes_store(struct device *dev,
6580 struct device_attribute *attr, const char *buffer, size_t count)
6581{
6582 struct Scsi_Host *shost = class_to_shost(dev);
6583 struct pqi_ctrl_info *ctrl_info = shost_to_hba(shost);
6584 u8 set_r5_writes = 0;
6585
6586 if (kstrtou8(buffer, 0, &set_r5_writes))
6587 return -EINVAL;
6588
6589 if (set_r5_writes > 0)
6590 set_r5_writes = 1;
6591
6592 ctrl_info->enable_r5_writes = set_r5_writes;
6593
6594 return count;
6595}
6596
6597static ssize_t pqi_host_enable_r6_writes_show(struct device *dev,
6598 struct device_attribute *attr, char *buffer)
6599{
6600 struct Scsi_Host *shost = class_to_shost(dev);
6601 struct pqi_ctrl_info *ctrl_info = shost_to_hba(shost);
6602
6603 return scnprintf(buffer, 10, "%x\n", ctrl_info->enable_r6_writes);
6604}
6605
6606static ssize_t pqi_host_enable_r6_writes_store(struct device *dev,
6607 struct device_attribute *attr, const char *buffer, size_t count)
6608{
6609 struct Scsi_Host *shost = class_to_shost(dev);
6610 struct pqi_ctrl_info *ctrl_info = shost_to_hba(shost);
6611 u8 set_r6_writes = 0;
6612
6613 if (kstrtou8(buffer, 0, &set_r6_writes))
6614 return -EINVAL;
6615
6616 if (set_r6_writes > 0)
6617 set_r6_writes = 1;
6618
6619 ctrl_info->enable_r6_writes = set_r6_writes;
6620
6621 return count;
6622}
6623
6d90615f
MB		 6624static DEVICE_ATTR(driver_version, 0444, pqi_driver_version_show, NULL);
6625static DEVICE_ATTR(firmware_version, 0444, pqi_firmware_version_show, NULL);
6626static DEVICE_ATTR(model, 0444, pqi_model_show, NULL);
6627static DEVICE_ATTR(serial_number, 0444, pqi_serial_number_show, NULL);
6628static DEVICE_ATTR(vendor, 0444, pqi_vendor_show, NULL);
cbe0c7b1 6629static DEVICE_ATTR(rescan, 0200, NULL, pqi_host_rescan_store);
583891c9
KB		 6630static DEVICE_ATTR(lockup_action, 0644, pqi_lockup_action_show,
6631 pqi_lockup_action_store);
5be746d7
DB		 6632static DEVICE_ATTR(enable_stream_detection, 0644,
6633 pqi_host_enable_stream_detection_show,
6634 pqi_host_enable_stream_detection_store);
6702d2c4
DB		 6635static DEVICE_ATTR(enable_r5_writes, 0644,
6636 pqi_host_enable_r5_writes_show, pqi_host_enable_r5_writes_store);
6637static DEVICE_ATTR(enable_r6_writes, 0644,
6638 pqi_host_enable_r6_writes_show, pqi_host_enable_r6_writes_store);
6c223761
KB		 6639
6640static struct device_attribute *pqi_shost_attrs[] = {
6d90615f
MB		 6641 &dev_attr_driver_version,
6642 &dev_attr_firmware_version,
6643 &dev_attr_model,
6644 &dev_attr_serial_number,
6645 &dev_attr_vendor,
6c223761 6646 &dev_attr_rescan,
3c50976f 6647 &dev_attr_lockup_action,
5be746d7 6648 &dev_attr_enable_stream_detection,
6702d2c4
DB		 6649 &dev_attr_enable_r5_writes,
6650 &dev_attr_enable_r6_writes,
6c223761
KB		 6651 NULL
6652};
6653
cd128244
DC		 6654static ssize_t pqi_unique_id_show(struct device *dev,
6655 struct device_attribute *attr, char *buffer)
6656{
6657 struct pqi_ctrl_info *ctrl_info;
6658 struct scsi_device *sdev;
6659 struct pqi_scsi_dev *device;
6660 unsigned long flags;
5b083b30 6661 u8 unique_id[16];
cd128244
DC		 6662
6663 sdev = to_scsi_device(dev);
6664 ctrl_info = shost_to_hba(sdev->host);
6665
6666 spin_lock_irqsave(&ctrl_info->scsi_device_list_lock, flags);
6667
6668 device = sdev->hostdata;
6669 if (!device) {
8b664fef 6670 spin_unlock_irqrestore(&ctrl_info->scsi_device_list_lock, flags);
cd128244
DC		 6671 return -ENODEV;
6672 }
5b083b30
KB		 6673
6674 if (device->is_physical_device) {
6675 memset(unique_id, 0, 8);
6676 memcpy(unique_id + 8, &device->wwid, sizeof(device->wwid));
6677 } else {
6678 memcpy(unique_id, device->volume_id, sizeof(device->volume_id));
6679 }
cd128244
DC		 6680
6681 spin_unlock_irqrestore(&ctrl_info->scsi_device_list_lock, flags);
6682
a4256252 6683 return scnprintf(buffer, PAGE_SIZE,
583891c9
KB		 6684 "%02X%02X%02X%02X%02X%02X%02X%02X"
6685 "%02X%02X%02X%02X%02X%02X%02X%02X\n",
5b083b30
KB		 6686 unique_id[0], unique_id[1], unique_id[2], unique_id[3],
6687 unique_id[4], unique_id[5], unique_id[6], unique_id[7],
6688 unique_id[8], unique_id[9], unique_id[10], unique_id[11],
6689 unique_id[12], unique_id[13], unique_id[14], unique_id[15]);
cd128244
DC		 6690}
6691
6692static ssize_t pqi_lunid_show(struct device *dev,
6693 struct device_attribute *attr, char *buffer)
6694{
6695 struct pqi_ctrl_info *ctrl_info;
6696 struct scsi_device *sdev;
6697 struct pqi_scsi_dev *device;
6698 unsigned long flags;
6699 u8 lunid[8];
6700
6701 sdev = to_scsi_device(dev);
6702 ctrl_info = shost_to_hba(sdev->host);
6703
6704 spin_lock_irqsave(&ctrl_info->scsi_device_list_lock, flags);
6705
6706 device = sdev->hostdata;
6707 if (!device) {
8b664fef 6708 spin_unlock_irqrestore(&ctrl_info->scsi_device_list_lock, flags);
cd128244
DC		 6709 return -ENODEV;
6710 }
694c5d5b 6711
cd128244
DC		 6712 memcpy(lunid, device->scsi3addr, sizeof(lunid));
6713
6714 spin_unlock_irqrestore(&ctrl_info->scsi_device_list_lock, flags);
6715
a4256252 6716 return scnprintf(buffer, PAGE_SIZE, "0x%8phN\n", lunid);
cd128244
DC		 6717}
6718
694c5d5b
KB		 6719#define MAX_PATHS 8
6720
cd128244
DC		 6721static ssize_t pqi_path_info_show(struct device *dev,
6722 struct device_attribute *attr, char *buf)
6723{
6724 struct pqi_ctrl_info *ctrl_info;
6725 struct scsi_device *sdev;
6726 struct pqi_scsi_dev *device;
6727 unsigned long flags;
6728 int i;
6729 int output_len = 0;
6730 u8 box;
6731 u8 bay;
694c5d5b 6732 u8 path_map_index;
cd128244 6733 char *active;
694c5d5b 6734 u8 phys_connector[2];
cd128244
DC		 6735
6736 sdev = to_scsi_device(dev);
6737 ctrl_info = shost_to_hba(sdev->host);
6738
6739 spin_lock_irqsave(&ctrl_info->scsi_device_list_lock, flags);
6740
6741 device = sdev->hostdata;
6742 if (!device) {
8b664fef 6743 spin_unlock_irqrestore(&ctrl_info->scsi_device_list_lock, flags);
cd128244
DC		 6744 return -ENODEV;
6745 }
6746
6747 bay = device->bay;
6748 for (i = 0; i < MAX_PATHS; i++) {
694c5d5b 6749 path_map_index = 1 << i;
cd128244
DC		 6750 if (i == device->active_path_index)
6751 active = "Active";
6752 else if (device->path_map & path_map_index)
6753 active = "Inactive";
6754 else
6755 continue;
6756
6757 output_len += scnprintf(buf + output_len,
6758 PAGE_SIZE - output_len,
6759 "[%d:%d:%d:%d] %20.20s ",
6760 ctrl_info->scsi_host->host_no,
6761 device->bus, device->target,
6762 device->lun,
6763 scsi_device_type(device->devtype));
6764
6765 if (device->devtype == TYPE_RAID ||
6766 pqi_is_logical_device(device))
6767 goto end_buffer;
6768
6769 memcpy(&phys_connector, &device->phys_connector[i],
6770 sizeof(phys_connector));
6771 if (phys_connector[0] < '0')
6772 phys_connector[0] = '0';
6773 if (phys_connector[1] < '0')
6774 phys_connector[1] = '0';
6775
6776 output_len += scnprintf(buf + output_len,
6777 PAGE_SIZE - output_len,
6778 "PORT: %.2s ", phys_connector);
6779
6780 box = device->box[i];
6781 if (box != 0 && box != 0xFF)
6782 output_len += scnprintf(buf + output_len,
6783 PAGE_SIZE - output_len,
6784 "BOX: %hhu ", box);
6785
6786 if ((device->devtype == TYPE_DISK ||
6787 device->devtype == TYPE_ZBC) &&
6788 pqi_expose_device(device))
6789 output_len += scnprintf(buf + output_len,
6790 PAGE_SIZE - output_len,
6791 "BAY: %hhu ", bay);
6792
6793end_buffer:
6794 output_len += scnprintf(buf + output_len,
6795 PAGE_SIZE - output_len,
6796 "%s\n", active);
6797 }
6798
6799 spin_unlock_irqrestore(&ctrl_info->scsi_device_list_lock, flags);
694c5d5b 6800
cd128244
DC		 6801 return output_len;
6802}
6803
6c223761
KB		 6804static ssize_t pqi_sas_address_show(struct device *dev,
6805 struct device_attribute *attr, char *buffer)
6806{
6807 struct pqi_ctrl_info *ctrl_info;
6808 struct scsi_device *sdev;
6809 struct pqi_scsi_dev *device;
6810 unsigned long flags;
6811 u64 sas_address;
6812
6813 sdev = to_scsi_device(dev);
6814 ctrl_info = shost_to_hba(sdev->host);
6815
6816 spin_lock_irqsave(&ctrl_info->scsi_device_list_lock, flags);
6817
6818 device = sdev->hostdata;
8b664fef
KB		 6819 if (!device || !pqi_is_device_with_sas_address(device)) {
6820 spin_unlock_irqrestore(&ctrl_info->scsi_device_list_lock, flags);
6c223761
KB		 6821 return -ENODEV;
6822 }
694c5d5b 6823
6c223761
KB		 6824 sas_address = device->sas_address;
6825
6826 spin_unlock_irqrestore(&ctrl_info->scsi_device_list_lock, flags);
6827
a4256252 6828 return scnprintf(buffer, PAGE_SIZE, "0x%016llx\n", sas_address);
6c223761
KB		 6829}
6830
6831static ssize_t pqi_ssd_smart_path_enabled_show(struct device *dev,
6832 struct device_attribute *attr, char *buffer)
6833{
6834 struct pqi_ctrl_info *ctrl_info;
6835 struct scsi_device *sdev;
6836 struct pqi_scsi_dev *device;
6837 unsigned long flags;
6838
6839 sdev = to_scsi_device(dev);
6840 ctrl_info = shost_to_hba(sdev->host);
6841
6842 spin_lock_irqsave(&ctrl_info->scsi_device_list_lock, flags);
6843
6844 device = sdev->hostdata;
8b664fef
KB		 6845 if (!device) {
6846 spin_unlock_irqrestore(&ctrl_info->scsi_device_list_lock, flags);
6847 return -ENODEV;
6848 }
6849
588a63fe 6850 buffer[0] = device->raid_bypass_enabled ? '1' : '0';
6c223761
KB		 6851 buffer[1] = '\n';
6852 buffer[2] = '\0';
6853
6854 spin_unlock_irqrestore(&ctrl_info->scsi_device_list_lock, flags);
6855
6856 return 2;
6857}
6858
a9f93392
KB		 6859static ssize_t pqi_raid_level_show(struct device *dev,
6860 struct device_attribute *attr, char *buffer)
6861{
6862 struct pqi_ctrl_info *ctrl_info;
6863 struct scsi_device *sdev;
6864 struct pqi_scsi_dev *device;
6865 unsigned long flags;
6866 char *raid_level;
6867
6868 sdev = to_scsi_device(dev);
6869 ctrl_info = shost_to_hba(sdev->host);
6870
6871 spin_lock_irqsave(&ctrl_info->scsi_device_list_lock, flags);
6872
6873 device = sdev->hostdata;
8b664fef
KB		 6874 if (!device) {
6875 spin_unlock_irqrestore(&ctrl_info->scsi_device_list_lock, flags);
6876 return -ENODEV;
6877 }
a9f93392
KB		 6878
6879 if (pqi_is_logical_device(device))
6880 raid_level = pqi_raid_level_to_string(device->raid_level);
6881 else
6882 raid_level = "N/A";
6883
6884 spin_unlock_irqrestore(&ctrl_info->scsi_device_list_lock, flags);
6885
a4256252 6886 return scnprintf(buffer, PAGE_SIZE, "%s\n", raid_level);
a9f93392
KB		 6887}
6888
8b664fef
KB		 6889static ssize_t pqi_raid_bypass_cnt_show(struct device *dev,
6890 struct device_attribute *attr, char *buffer)
6891{
6892 struct pqi_ctrl_info *ctrl_info;
6893 struct scsi_device *sdev;
6894 struct pqi_scsi_dev *device;
6895 unsigned long flags;
6896 int raid_bypass_cnt;
6897
6898 sdev = to_scsi_device(dev);
6899 ctrl_info = shost_to_hba(sdev->host);
6900
6901 spin_lock_irqsave(&ctrl_info->scsi_device_list_lock, flags);
6902
6903 device = sdev->hostdata;
6904 if (!device) {
6905 spin_unlock_irqrestore(&ctrl_info->scsi_device_list_lock, flags);
6906 return -ENODEV;
6907 }
6908
6909 raid_bypass_cnt = atomic_read(&device->raid_bypass_cnt);
6910
6911 spin_unlock_irqrestore(&ctrl_info->scsi_device_list_lock, flags);
6912
a4256252 6913 return scnprintf(buffer, PAGE_SIZE, "0x%x\n", raid_bypass_cnt);
8b664fef
KB		 6914}
6915
cd128244
DC		 6916static DEVICE_ATTR(lunid, 0444, pqi_lunid_show, NULL);
6917static DEVICE_ATTR(unique_id, 0444, pqi_unique_id_show, NULL);
6918static DEVICE_ATTR(path_info, 0444, pqi_path_info_show, NULL);
cbe0c7b1 6919static DEVICE_ATTR(sas_address, 0444, pqi_sas_address_show, NULL);
8b664fef 6920static DEVICE_ATTR(ssd_smart_path_enabled, 0444, pqi_ssd_smart_path_enabled_show, NULL);
a9f93392 6921static DEVICE_ATTR(raid_level, 0444, pqi_raid_level_show, NULL);
8b664fef 6922static DEVICE_ATTR(raid_bypass_cnt, 0444, pqi_raid_bypass_cnt_show, NULL);
6c223761
KB		 6923
6924static struct device_attribute *pqi_sdev_attrs[] = {
cd128244
DC		 6925 &dev_attr_lunid,
6926 &dev_attr_unique_id,
6927 &dev_attr_path_info,
6c223761
KB		 6928 &dev_attr_sas_address,
6929 &dev_attr_ssd_smart_path_enabled,
a9f93392 6930 &dev_attr_raid_level,
8b664fef 6931 &dev_attr_raid_bypass_cnt,
6c223761
KB		 6932 NULL
6933};
6934
6935static struct scsi_host_template pqi_driver_template = {
6936 .module = THIS_MODULE,
6937 .name = DRIVER_NAME_SHORT,
6938 .proc_name = DRIVER_NAME_SHORT,
6939 .queuecommand = pqi_scsi_queue_command,
6940 .scan_start = pqi_scan_start,
6941 .scan_finished = pqi_scan_finished,
6942 .this_id = -1,
6c223761
KB		 6943 .eh_device_reset_handler = pqi_eh_device_reset_handler,
6944 .ioctl = pqi_ioctl,
6945 .slave_alloc = pqi_slave_alloc,
ce143793 6946 .slave_configure = pqi_slave_configure,
4d15ad38 6947 .slave_destroy = pqi_slave_destroy,
52198226 6948 .map_queues = pqi_map_queues,
6c223761
KB		 6949 .sdev_attrs = pqi_sdev_attrs,
6950 .shost_attrs = pqi_shost_attrs,
6951};
6952
6953static int pqi_register_scsi(struct pqi_ctrl_info *ctrl_info)
6954{
6955 int rc;
6956 struct Scsi_Host *shost;
6957
6958 shost = scsi_host_alloc(&pqi_driver_template, sizeof(ctrl_info));
6959 if (!shost) {
583891c9 6960 dev_err(&ctrl_info->pci_dev->dev, "scsi_host_alloc failed\n");
6c223761
KB		 6961 return -ENOMEM;
6962 }
6963
6964 shost->io_port = 0;
6965 shost->n_io_port = 0;
6966 shost->this_id = -1;
6967 shost->max_channel = PQI_MAX_BUS;
6968 shost->max_cmd_len = MAX_COMMAND_SIZE;
6969 shost->max_lun = ~0;
6970 shost->max_id = ~0;
6971 shost->max_sectors = ctrl_info->max_sectors;
6972 shost->can_queue = ctrl_info->scsi_ml_can_queue;
6973 shost->cmd_per_lun = shost->can_queue;
6974 shost->sg_tablesize = ctrl_info->sg_tablesize;
6975 shost->transportt = pqi_sas_transport_template;
52198226 6976 shost->irq = pci_irq_vector(ctrl_info->pci_dev, 0);
6c223761
KB		 6977 shost->unique_id = shost->irq;
6978 shost->nr_hw_queues = ctrl_info->num_queue_groups;
c6d3ee20 6979 shost->host_tagset = 1;
6c223761
KB		 6980 shost->hostdata[0] = (unsigned long)ctrl_info;
6981
6982 rc = scsi_add_host(shost, &ctrl_info->pci_dev->dev);
6983 if (rc) {
583891c9 6984 dev_err(&ctrl_info->pci_dev->dev, "scsi_add_host failed\n");
6c223761
KB		 6985 goto free_host;
6986 }
6987
6988 rc = pqi_add_sas_host(shost, ctrl_info);
6989 if (rc) {
583891c9 6990 dev_err(&ctrl_info->pci_dev->dev, "add SAS host failed\n");
6c223761
KB		 6991 goto remove_host;
6992 }
6993
6994 ctrl_info->scsi_host = shost;
6995
6996 return 0;
6997
6998remove_host:
6999 scsi_remove_host(shost);
7000free_host:
7001 scsi_host_put(shost);
7002
7003 return rc;
7004}
7005
7006static void pqi_unregister_scsi(struct pqi_ctrl_info *ctrl_info)
7007{
7008 struct Scsi_Host *shost;
7009
7010 pqi_delete_sas_host(ctrl_info);
7011
7012 shost = ctrl_info->scsi_host;
7013 if (!shost)
7014 return;
7015
7016 scsi_remove_host(shost);
7017 scsi_host_put(shost);
7018}
7019
336b6819
KB		 7020static int pqi_wait_for_pqi_reset_completion(struct pqi_ctrl_info *ctrl_info)
7021{
7022 int rc = 0;
7023 struct pqi_device_registers __iomem *pqi_registers;
7024 unsigned long timeout;
7025 unsigned int timeout_msecs;
7026 union pqi_reset_register reset_reg;
6c223761 7027
336b6819
KB		 7028 pqi_registers = ctrl_info->pqi_registers;
7029 timeout_msecs = readw(&pqi_registers->max_reset_timeout) * 100;
7030 timeout = msecs_to_jiffies(timeout_msecs) + jiffies;
7031
7032 while (1) {
7033 msleep(PQI_RESET_POLL_INTERVAL_MSECS);
7034 reset_reg.all_bits = readl(&pqi_registers->device_reset);
7035 if (reset_reg.bits.reset_action == PQI_RESET_ACTION_COMPLETED)
7036 break;
7037 pqi_check_ctrl_health(ctrl_info);
7038 if (pqi_ctrl_offline(ctrl_info)) {
7039 rc = -ENXIO;
7040 break;
7041 }
7042 if (time_after(jiffies, timeout)) {
7043 rc = -ETIMEDOUT;
7044 break;
7045 }
7046 }
7047
7048 return rc;
7049}
6c223761
KB		 7050
7051static int pqi_reset(struct pqi_ctrl_info *ctrl_info)
7052{
7053 int rc;
336b6819
KB		 7054 union pqi_reset_register reset_reg;
7055
7056 if (ctrl_info->pqi_reset_quiesce_supported) {
7057 rc = sis_pqi_reset_quiesce(ctrl_info);
7058 if (rc) {
7059 dev_err(&ctrl_info->pci_dev->dev,
583891c9 7060 "PQI reset failed during quiesce with error %d\n", rc);
336b6819
KB		 7061 return rc;
7062 }
7063 }
6c223761 7064
336b6819
KB		 7065 reset_reg.all_bits = 0;
7066 reset_reg.bits.reset_type = PQI_RESET_TYPE_HARD_RESET;
7067 reset_reg.bits.reset_action = PQI_RESET_ACTION_RESET;
6c223761 7068
336b6819 7069 writel(reset_reg.all_bits, &ctrl_info->pqi_registers->device_reset);
6c223761 7070
336b6819 7071 rc = pqi_wait_for_pqi_reset_completion(ctrl_info);
6c223761
KB		 7072 if (rc)
7073 dev_err(&ctrl_info->pci_dev->dev,
336b6819 7074 "PQI reset failed with error %d\n", rc);
6c223761
KB		 7075
7076 return rc;
7077}
7078
6d90615f
MB		 7079static int pqi_get_ctrl_serial_number(struct pqi_ctrl_info *ctrl_info)
7080{
7081 int rc;
7082 struct bmic_sense_subsystem_info *sense_info;
7083
7084 sense_info = kzalloc(sizeof(*sense_info), GFP_KERNEL);
7085 if (!sense_info)
7086 return -ENOMEM;
7087
7088 rc = pqi_sense_subsystem_info(ctrl_info, sense_info);
7089 if (rc)
7090 goto out;
7091
7092 memcpy(ctrl_info->serial_number, sense_info->ctrl_serial_number,
7093 sizeof(sense_info->ctrl_serial_number));
7094 ctrl_info->serial_number[sizeof(sense_info->ctrl_serial_number)] = '\0';
7095
7096out:
7097 kfree(sense_info);
7098
7099 return rc;
7100}
7101
7102static int pqi_get_ctrl_product_details(struct pqi_ctrl_info *ctrl_info)
6c223761
KB		 7103{
7104 int rc;
7105 struct bmic_identify_controller *identify;
7106
7107 identify = kmalloc(sizeof(*identify), GFP_KERNEL);
7108 if (!identify)
7109 return -ENOMEM;
7110
7111 rc = pqi_identify_controller(ctrl_info, identify);
7112 if (rc)
7113 goto out;
7114
598bef8d
KB		 7115 if (get_unaligned_le32(&identify->extra_controller_flags) &
7116 BMIC_IDENTIFY_EXTRA_FLAGS_LONG_FW_VERSION_SUPPORTED) {
7117 memcpy(ctrl_info->firmware_version,
7118 identify->firmware_version_long,
7119 sizeof(identify->firmware_version_long));
7120 } else {
7121 memcpy(ctrl_info->firmware_version,
7122 identify->firmware_version_short,
7123 sizeof(identify->firmware_version_short));
7124 ctrl_info->firmware_version
7125 [sizeof(identify->firmware_version_short)] = '\0';
7126 snprintf(ctrl_info->firmware_version +
7127 strlen(ctrl_info->firmware_version),
7128 sizeof(ctrl_info->firmware_version) -
7129 sizeof(identify->firmware_version_short),
7130 "-%u",
7131 get_unaligned_le16(&identify->firmware_build_number));
7132 }
6c223761 7133
6d90615f
MB		 7134 memcpy(ctrl_info->model, identify->product_id,
7135 sizeof(identify->product_id));
7136 ctrl_info->model[sizeof(identify->product_id)] = '\0';
7137
7138 memcpy(ctrl_info->vendor, identify->vendor_id,
7139 sizeof(identify->vendor_id));
7140 ctrl_info->vendor[sizeof(identify->vendor_id)] = '\0';
7141
6c223761
KB		 7142out:
7143 kfree(identify);
7144
7145 return rc;
7146}
7147
b212c251
KB		 7148struct pqi_config_table_section_info {
7149 struct pqi_ctrl_info *ctrl_info;
7150 void *section;
7151 u32 section_offset;
7152 void __iomem *section_iomem_addr;
7153};
7154
7155static inline bool pqi_is_firmware_feature_supported(
7156 struct pqi_config_table_firmware_features *firmware_features,
7157 unsigned int bit_position)
98f87667 7158{
b212c251 7159 unsigned int byte_index;
98f87667 7160
b212c251 7161 byte_index = bit_position / BITS_PER_BYTE;
98f87667 7162
b212c251
KB		 7163 if (byte_index >= le16_to_cpu(firmware_features->num_elements))
7164 return false;
98f87667 7165
b212c251
KB		 7166 return firmware_features->features_supported[byte_index] &
7167 (1 << (bit_position % BITS_PER_BYTE)) ? true : false;
7168}
7169
7170static inline bool pqi_is_firmware_feature_enabled(
7171 struct pqi_config_table_firmware_features *firmware_features,
7172 void __iomem *firmware_features_iomem_addr,
7173 unsigned int bit_position)
7174{
7175 unsigned int byte_index;
7176 u8 __iomem *features_enabled_iomem_addr;
7177
7178 byte_index = (bit_position / BITS_PER_BYTE) +
7179 (le16_to_cpu(firmware_features->num_elements) * 2);
7180
7181 features_enabled_iomem_addr = firmware_features_iomem_addr +
7182 offsetof(struct pqi_config_table_firmware_features,
7183 features_supported) + byte_index;
7184
7185 return *((__force u8 *)features_enabled_iomem_addr) &
7186 (1 << (bit_position % BITS_PER_BYTE)) ? true : false;
7187}
7188
7189static inline void pqi_request_firmware_feature(
7190 struct pqi_config_table_firmware_features *firmware_features,
7191 unsigned int bit_position)
7192{
7193 unsigned int byte_index;
7194
7195 byte_index = (bit_position / BITS_PER_BYTE) +
7196 le16_to_cpu(firmware_features->num_elements);
7197
7198 firmware_features->features_supported[byte_index] |=
7199 (1 << (bit_position % BITS_PER_BYTE));
7200}
7201
7202static int pqi_config_table_update(struct pqi_ctrl_info *ctrl_info,
7203 u16 first_section, u16 last_section)
7204{
7205 struct pqi_vendor_general_request request;
7206
7207 memset(&request, 0, sizeof(request));
7208
7209 request.header.iu_type = PQI_REQUEST_IU_VENDOR_GENERAL;
7210 put_unaligned_le16(sizeof(request) - PQI_REQUEST_HEADER_LENGTH,
7211 &request.header.iu_length);
7212 put_unaligned_le16(PQI_VENDOR_GENERAL_CONFIG_TABLE_UPDATE,
7213 &request.function_code);
7214 put_unaligned_le16(first_section,
7215 &request.data.config_table_update.first_section);
7216 put_unaligned_le16(last_section,
7217 &request.data.config_table_update.last_section);
7218
ae0c189d 7219 return pqi_submit_raid_request_synchronous(ctrl_info, &request.header, 0, NULL);
b212c251
KB		 7220}
7221
7222static int pqi_enable_firmware_features(struct pqi_ctrl_info *ctrl_info,
7223 struct pqi_config_table_firmware_features *firmware_features,
7224 void __iomem *firmware_features_iomem_addr)
7225{
7226 void *features_requested;
7227 void __iomem *features_requested_iomem_addr;
f6cc2a77 7228 void __iomem *host_max_known_feature_iomem_addr;
b212c251
KB		 7229
7230 features_requested = firmware_features->features_supported +
7231 le16_to_cpu(firmware_features->num_elements);
7232
7233 features_requested_iomem_addr = firmware_features_iomem_addr +
7234 (features_requested - (void *)firmware_features);
7235
7236 memcpy_toio(features_requested_iomem_addr, features_requested,
7237 le16_to_cpu(firmware_features->num_elements));
7238
f6cc2a77
KB		 7239 if (pqi_is_firmware_feature_supported(firmware_features,
7240 PQI_FIRMWARE_FEATURE_MAX_KNOWN_FEATURE)) {
7241 host_max_known_feature_iomem_addr =
7242 features_requested_iomem_addr +
7243 (le16_to_cpu(firmware_features->num_elements) * 2) +
7244 sizeof(__le16);
7245 writew(PQI_FIRMWARE_FEATURE_MAXIMUM,
7246 host_max_known_feature_iomem_addr);
7247 }
7248
b212c251
KB		 7249 return pqi_config_table_update(ctrl_info,
7250 PQI_CONFIG_TABLE_SECTION_FIRMWARE_FEATURES,
7251 PQI_CONFIG_TABLE_SECTION_FIRMWARE_FEATURES);
7252}
7253
7254struct pqi_firmware_feature {
7255 char *feature_name;
7256 unsigned int feature_bit;
7257 bool supported;
7258 bool enabled;
7259 void (*feature_status)(struct pqi_ctrl_info *ctrl_info,
7260 struct pqi_firmware_feature *firmware_feature);
7261};
7262
7263static void pqi_firmware_feature_status(struct pqi_ctrl_info *ctrl_info,
7264 struct pqi_firmware_feature *firmware_feature)
7265{
7266 if (!firmware_feature->supported) {
7267 dev_info(&ctrl_info->pci_dev->dev, "%s not supported by controller\n",
7268 firmware_feature->feature_name);
7269 return;
7270 }
7271
7272 if (firmware_feature->enabled) {
7273 dev_info(&ctrl_info->pci_dev->dev,
7274 "%s enabled\n", firmware_feature->feature_name);
7275 return;
7276 }
7277
7278 dev_err(&ctrl_info->pci_dev->dev, "failed to enable %s\n",
7279 firmware_feature->feature_name);
7280}
7281
21432010 7282static void pqi_ctrl_update_feature_flags(struct pqi_ctrl_info *ctrl_info,
7283 struct pqi_firmware_feature *firmware_feature)
7284{
7285 switch (firmware_feature->feature_bit) {
f6cc2a77
KB		 7286 case PQI_FIRMWARE_FEATURE_RAID_1_WRITE_BYPASS:
7287 ctrl_info->enable_r1_writes = firmware_feature->enabled;
7288 break;
7289 case PQI_FIRMWARE_FEATURE_RAID_5_WRITE_BYPASS:
7290 ctrl_info->enable_r5_writes = firmware_feature->enabled;
7291 break;
7292 case PQI_FIRMWARE_FEATURE_RAID_6_WRITE_BYPASS:
7293 ctrl_info->enable_r6_writes = firmware_feature->enabled;
7294 break;
21432010 7295 case PQI_FIRMWARE_FEATURE_SOFT_RESET_HANDSHAKE:
7296 ctrl_info->soft_reset_handshake_supported =
4ccc354b
KB		 7297 firmware_feature->enabled &&
7298 pqi_read_soft_reset_status(ctrl_info);
21432010 7299 break;
7300 case PQI_FIRMWARE_FEATURE_RAID_IU_TIMEOUT:
583891c9 7301 ctrl_info->raid_iu_timeout_supported = firmware_feature->enabled;
21432010 7302 break;
c2922f17 7303 case PQI_FIRMWARE_FEATURE_TMF_IU_TIMEOUT:
583891c9 7304 ctrl_info->tmf_iu_timeout_supported = firmware_feature->enabled;
c2922f17 7305 break;
7a84a821
KB		 7306 case PQI_FIRMWARE_FEATURE_UNIQUE_WWID_IN_REPORT_PHYS_LUN:
7307 ctrl_info->unique_wwid_in_report_phys_lun_supported =
7308 firmware_feature->enabled;
7309 break;
21432010 7310 }
7311
7312 pqi_firmware_feature_status(ctrl_info, firmware_feature);
7313}
7314
b212c251
KB		 7315static inline void pqi_firmware_feature_update(struct pqi_ctrl_info *ctrl_info,
7316 struct pqi_firmware_feature *firmware_feature)
7317{
7318 if (firmware_feature->feature_status)
7319 firmware_feature->feature_status(ctrl_info, firmware_feature);
7320}
7321
7322static DEFINE_MUTEX(pqi_firmware_features_mutex);
7323
7324static struct pqi_firmware_feature pqi_firmware_features[] = {
7325 {
7326 .feature_name = "Online Firmware Activation",
7327 .feature_bit = PQI_FIRMWARE_FEATURE_OFA,
7328 .feature_status = pqi_firmware_feature_status,
7329 },
7330 {
7331 .feature_name = "Serial Management Protocol",
7332 .feature_bit = PQI_FIRMWARE_FEATURE_SMP,
7333 .feature_status = pqi_firmware_feature_status,
7334 },
f6cc2a77
KB		 7335 {
7336 .feature_name = "Maximum Known Feature",
7337 .feature_bit = PQI_FIRMWARE_FEATURE_MAX_KNOWN_FEATURE,
7338 .feature_status = pqi_firmware_feature_status,
7339 },
7340 {
7341 .feature_name = "RAID 0 Read Bypass",
7342 .feature_bit = PQI_FIRMWARE_FEATURE_RAID_0_READ_BYPASS,
7343 .feature_status = pqi_firmware_feature_status,
7344 },
7345 {
7346 .feature_name = "RAID 1 Read Bypass",
7347 .feature_bit = PQI_FIRMWARE_FEATURE_RAID_1_READ_BYPASS,
7348 .feature_status = pqi_firmware_feature_status,
7349 },
7350 {
7351 .feature_name = "RAID 5 Read Bypass",
7352 .feature_bit = PQI_FIRMWARE_FEATURE_RAID_5_READ_BYPASS,
7353 .feature_status = pqi_firmware_feature_status,
7354 },
7355 {
7356 .feature_name = "RAID 6 Read Bypass",
7357 .feature_bit = PQI_FIRMWARE_FEATURE_RAID_6_READ_BYPASS,
7358 .feature_status = pqi_firmware_feature_status,
7359 },
7360 {
7361 .feature_name = "RAID 0 Write Bypass",
7362 .feature_bit = PQI_FIRMWARE_FEATURE_RAID_0_WRITE_BYPASS,
7363 .feature_status = pqi_firmware_feature_status,
7364 },
7365 {
7366 .feature_name = "RAID 1 Write Bypass",
7367 .feature_bit = PQI_FIRMWARE_FEATURE_RAID_1_WRITE_BYPASS,
7368 .feature_status = pqi_ctrl_update_feature_flags,
7369 },
7370 {
7371 .feature_name = "RAID 5 Write Bypass",
7372 .feature_bit = PQI_FIRMWARE_FEATURE_RAID_5_WRITE_BYPASS,
7373 .feature_status = pqi_ctrl_update_feature_flags,
7374 },
7375 {
7376 .feature_name = "RAID 6 Write Bypass",
7377 .feature_bit = PQI_FIRMWARE_FEATURE_RAID_6_WRITE_BYPASS,
7378 .feature_status = pqi_ctrl_update_feature_flags,
7379 },
4fd22c13
MR		 7380 {
7381 .feature_name = "New Soft Reset Handshake",
7382 .feature_bit = PQI_FIRMWARE_FEATURE_SOFT_RESET_HANDSHAKE,
21432010 7383 .feature_status = pqi_ctrl_update_feature_flags,
7384 },
7385 {
7386 .feature_name = "RAID IU Timeout",
7387 .feature_bit = PQI_FIRMWARE_FEATURE_RAID_IU_TIMEOUT,
7388 .feature_status = pqi_ctrl_update_feature_flags,
4fd22c13 7389 },
c2922f17
MB		 7390 {
7391 .feature_name = "TMF IU Timeout",
7392 .feature_bit = PQI_FIRMWARE_FEATURE_TMF_IU_TIMEOUT,
7393 .feature_status = pqi_ctrl_update_feature_flags,
7394 },
f6cc2a77
KB		 7395 {
7396 .feature_name = "RAID Bypass on encrypted logical volumes on NVMe",
7397 .feature_bit = PQI_FIRMWARE_FEATURE_RAID_BYPASS_ON_ENCRYPTED_NVME,
7398 .feature_status = pqi_firmware_feature_status,
7399 },
7a84a821
KB		 7400 {
7401 .feature_name = "Unique WWID in Report Physical LUN",
7402 .feature_bit = PQI_FIRMWARE_FEATURE_UNIQUE_WWID_IN_REPORT_PHYS_LUN,
7403 .feature_status = pqi_ctrl_update_feature_flags,
7404 },
b212c251
KB		 7405};
7406
7407static void pqi_process_firmware_features(
7408 struct pqi_config_table_section_info *section_info)
7409{
7410 int rc;
7411 struct pqi_ctrl_info *ctrl_info;
7412 struct pqi_config_table_firmware_features *firmware_features;
7413 void __iomem *firmware_features_iomem_addr;
7414 unsigned int i;
7415 unsigned int num_features_supported;
7416
7417 ctrl_info = section_info->ctrl_info;
7418 firmware_features = section_info->section;
7419 firmware_features_iomem_addr = section_info->section_iomem_addr;
7420
7421 for (i = 0, num_features_supported = 0;
7422 i < ARRAY_SIZE(pqi_firmware_features); i++) {
7423 if (pqi_is_firmware_feature_supported(firmware_features,
7424 pqi_firmware_features[i].feature_bit)) {
7425 pqi_firmware_features[i].supported = true;
7426 num_features_supported++;
7427 } else {
7428 pqi_firmware_feature_update(ctrl_info,
7429 &pqi_firmware_features[i]);
7430 }
7431 }
7432
7433 if (num_features_supported == 0)
7434 return;
7435
7436 for (i = 0; i < ARRAY_SIZE(pqi_firmware_features); i++) {
7437 if (!pqi_firmware_features[i].supported)
7438 continue;
7439 pqi_request_firmware_feature(firmware_features,
7440 pqi_firmware_features[i].feature_bit);
7441 }
7442
7443 rc = pqi_enable_firmware_features(ctrl_info, firmware_features,
7444 firmware_features_iomem_addr);
7445 if (rc) {
7446 dev_err(&ctrl_info->pci_dev->dev,
7447 "failed to enable firmware features in PQI configuration table\n");
7448 for (i = 0; i < ARRAY_SIZE(pqi_firmware_features); i++) {
7449 if (!pqi_firmware_features[i].supported)
7450 continue;
7451 pqi_firmware_feature_update(ctrl_info,
7452 &pqi_firmware_features[i]);
7453 }
7454 return;
7455 }
7456
7457 for (i = 0; i < ARRAY_SIZE(pqi_firmware_features); i++) {
7458 if (!pqi_firmware_features[i].supported)
7459 continue;
7460 if (pqi_is_firmware_feature_enabled(firmware_features,
7461 firmware_features_iomem_addr,
4fd22c13 7462 pqi_firmware_features[i].feature_bit)) {
583891c9 7463 pqi_firmware_features[i].enabled = true;
4fd22c13 7464 }
b212c251
KB		 7465 pqi_firmware_feature_update(ctrl_info,
7466 &pqi_firmware_features[i]);
7467 }
7468}
7469
7470static void pqi_init_firmware_features(void)
7471{
7472 unsigned int i;
7473
7474 for (i = 0; i < ARRAY_SIZE(pqi_firmware_features); i++) {
7475 pqi_firmware_features[i].supported = false;
7476 pqi_firmware_features[i].enabled = false;
7477 }
7478}
7479
7480static void pqi_process_firmware_features_section(
7481 struct pqi_config_table_section_info *section_info)
7482{
7483 mutex_lock(&pqi_firmware_features_mutex);
7484 pqi_init_firmware_features();
7485 pqi_process_firmware_features(section_info);
7486 mutex_unlock(&pqi_firmware_features_mutex);
7487}
7488
f6cc2a77
KB		 7489/*
7490 * Reset all controller settings that can be initialized during the processing
7491 * of the PQI Configuration Table.
7492 */
7493
4ccc354b
KB		 7494static void pqi_ctrl_reset_config(struct pqi_ctrl_info *ctrl_info)
7495{
7496 ctrl_info->heartbeat_counter = NULL;
7497 ctrl_info->soft_reset_status = NULL;
7498 ctrl_info->soft_reset_handshake_supported = false;
7499 ctrl_info->enable_r1_writes = false;
7500 ctrl_info->enable_r5_writes = false;
7501 ctrl_info->enable_r6_writes = false;
7502 ctrl_info->raid_iu_timeout_supported = false;
7503 ctrl_info->tmf_iu_timeout_supported = false;
7504 ctrl_info->unique_wwid_in_report_phys_lun_supported = false;
7505}
7506
98f87667
KB		 7507static int pqi_process_config_table(struct pqi_ctrl_info *ctrl_info)
7508{
7509 u32 table_length;
7510 u32 section_offset;
f6cc2a77 7511 bool firmware_feature_section_present;
98f87667
KB		 7512 void __iomem *table_iomem_addr;
7513 struct pqi_config_table *config_table;
7514 struct pqi_config_table_section_header *section;
b212c251 7515 struct pqi_config_table_section_info section_info;
f6cc2a77 7516 struct pqi_config_table_section_info feature_section_info;
98f87667
KB		 7517
7518 table_length = ctrl_info->config_table_length;
b212c251
KB		 7519 if (table_length == 0)
7520 return 0;
98f87667
KB		 7521
7522 config_table = kmalloc(table_length, GFP_KERNEL);
7523 if (!config_table) {
7524 dev_err(&ctrl_info->pci_dev->dev,
d87d5474 7525 "failed to allocate memory for PQI configuration table\n");
98f87667
KB		 7526 return -ENOMEM;
7527 }
7528
7529 /*
7530 * Copy the config table contents from I/O memory space into the
7531 * temporary buffer.
7532 */
583891c9 7533 table_iomem_addr = ctrl_info->iomem_base + ctrl_info->config_table_offset;
98f87667
KB		 7534 memcpy_fromio(config_table, table_iomem_addr, table_length);
7535
f6cc2a77 7536 firmware_feature_section_present = false;
b212c251 7537 section_info.ctrl_info = ctrl_info;
583891c9 7538 section_offset = get_unaligned_le32(&config_table->first_section_offset);
98f87667
KB		 7539
7540 while (section_offset) {
7541 section = (void *)config_table + section_offset;
7542
b212c251
KB		 7543 section_info.section = section;
7544 section_info.section_offset = section_offset;
583891c9 7545 section_info.section_iomem_addr = table_iomem_addr + section_offset;
b212c251 7546
98f87667 7547 switch (get_unaligned_le16(&section->section_id)) {
b212c251 7548 case PQI_CONFIG_TABLE_SECTION_FIRMWARE_FEATURES:
f6cc2a77
KB		 7549 firmware_feature_section_present = true;
7550 feature_section_info = section_info;
b212c251 7551 break;
98f87667 7552 case PQI_CONFIG_TABLE_SECTION_HEARTBEAT:
5a259e32
KB		 7553 if (pqi_disable_heartbeat)
7554 dev_warn(&ctrl_info->pci_dev->dev,
7555 "heartbeat disabled by module parameter\n");
7556 else
7557 ctrl_info->heartbeat_counter =
7558 table_iomem_addr +
7559 section_offset +
583891c9 7560 offsetof(struct pqi_config_table_heartbeat,
5a259e32 7561 heartbeat_counter);
98f87667 7562 break;
4fd22c13
MR		 7563 case PQI_CONFIG_TABLE_SECTION_SOFT_RESET:
7564 ctrl_info->soft_reset_status =
7565 table_iomem_addr +
7566 section_offset +
7567 offsetof(struct pqi_config_table_soft_reset,
583891c9 7568 soft_reset_status);
4fd22c13 7569 break;
98f87667
KB		 7570 }
7571
583891c9 7572 section_offset = get_unaligned_le16(&section->next_section_offset);
98f87667
KB		 7573 }
7574
f6cc2a77
KB		 7575 /*
7576 * We process the firmware feature section after all other sections
7577 * have been processed so that the feature bit callbacks can take
7578 * into account the settings configured by other sections.
7579 */
7580 if (firmware_feature_section_present)
7581 pqi_process_firmware_features_section(&feature_section_info);
7582
98f87667
KB		 7583 kfree(config_table);
7584
7585 return 0;
7586}
7587
162d7753
KB		 7588/* Switches the controller from PQI mode back into SIS mode. */
7589
7590static int pqi_revert_to_sis_mode(struct pqi_ctrl_info *ctrl_info)
7591{
7592 int rc;
7593
061ef06a 7594 pqi_change_irq_mode(ctrl_info, IRQ_MODE_NONE);
162d7753
KB		 7595 rc = pqi_reset(ctrl_info);
7596 if (rc)
7597 return rc;
4f078e24
KB		 7598 rc = sis_reenable_sis_mode(ctrl_info);
7599 if (rc) {
7600 dev_err(&ctrl_info->pci_dev->dev,
7601 "re-enabling SIS mode failed with error %d\n", rc);
7602 return rc;
7603 }
162d7753
KB		 7604 pqi_save_ctrl_mode(ctrl_info, SIS_MODE);
7605
7606 return 0;
7607}
7608
7609/*
7610 * If the controller isn't already in SIS mode, this function forces it into
7611 * SIS mode.
7612 */
7613
7614static int pqi_force_sis_mode(struct pqi_ctrl_info *ctrl_info)
ff6abb73
KB		 7615{
7616 if (!sis_is_firmware_running(ctrl_info))
7617 return -ENXIO;
7618
162d7753
KB		 7619 if (pqi_get_ctrl_mode(ctrl_info) == SIS_MODE)
7620 return 0;
7621
7622 if (sis_is_kernel_up(ctrl_info)) {
7623 pqi_save_ctrl_mode(ctrl_info, SIS_MODE);
7624 return 0;
ff6abb73
KB		 7625 }
7626
162d7753 7627 return pqi_revert_to_sis_mode(ctrl_info);
ff6abb73
KB		 7628}
7629
6c223761
KB		 7630static int pqi_ctrl_init(struct pqi_ctrl_info *ctrl_info)
7631{
7632 int rc;
2708a256 7633 u32 product_id;
6c223761 7634
0530736e
KB		 7635 if (reset_devices) {
7636 sis_soft_reset(ctrl_info);
3268b8a8 7637 msleep(PQI_POST_RESET_DELAY_SECS * PQI_HZ);
0530736e
KB		 7638 } else {
7639 rc = pqi_force_sis_mode(ctrl_info);
7640 if (rc)
7641 return rc;
7642 }
6c223761
KB		 7643
7644 /*
7645 * Wait until the controller is ready to start accepting SIS
7646 * commands.
7647 */
7648 rc = sis_wait_for_ctrl_ready(ctrl_info);
8845fdfa 7649 if (rc)
6c223761 7650 return rc;
6c223761
KB		 7651
7652 /*
7653 * Get the controller properties. This allows us to determine
7654 * whether or not it supports PQI mode.
7655 */
7656 rc = sis_get_ctrl_properties(ctrl_info);
7657 if (rc) {
7658 dev_err(&ctrl_info->pci_dev->dev,
7659 "error obtaining controller properties\n");
7660 return rc;
7661 }
7662
7663 rc = sis_get_pqi_capabilities(ctrl_info);
7664 if (rc) {
7665 dev_err(&ctrl_info->pci_dev->dev,
7666 "error obtaining controller capabilities\n");
7667 return rc;
7668 }
7669
2708a256
KB		 7670 product_id = sis_get_product_id(ctrl_info);
7671 ctrl_info->product_id = (u8)product_id;
7672 ctrl_info->product_revision = (u8)(product_id >> 8);
7673
d727a776
KB		 7674 if (reset_devices) {
7675 if (ctrl_info->max_outstanding_requests >
7676 PQI_MAX_OUTSTANDING_REQUESTS_KDUMP)
583891c9 7677 ctrl_info->max_outstanding_requests =
d727a776
KB		 7678 PQI_MAX_OUTSTANDING_REQUESTS_KDUMP;
7679 } else {
7680 if (ctrl_info->max_outstanding_requests >
7681 PQI_MAX_OUTSTANDING_REQUESTS)
583891c9 7682 ctrl_info->max_outstanding_requests =
d727a776
KB		 7683 PQI_MAX_OUTSTANDING_REQUESTS;
7684 }
6c223761
KB		 7685
7686 pqi_calculate_io_resources(ctrl_info);
7687
7688 rc = pqi_alloc_error_buffer(ctrl_info);
7689 if (rc) {
7690 dev_err(&ctrl_info->pci_dev->dev,
7691 "failed to allocate PQI error buffer\n");
7692 return rc;
7693 }
7694
7695 /*
7696 * If the function we are about to call succeeds, the
7697 * controller will transition from legacy SIS mode
7698 * into PQI mode.
7699 */
7700 rc = sis_init_base_struct_addr(ctrl_info);
7701 if (rc) {
7702 dev_err(&ctrl_info->pci_dev->dev,
7703 "error initializing PQI mode\n");
7704 return rc;
7705 }
7706
7707 /* Wait for the controller to complete the SIS -> PQI transition. */
7708 rc = pqi_wait_for_pqi_mode_ready(ctrl_info);
7709 if (rc) {
7710 dev_err(&ctrl_info->pci_dev->dev,
7711 "transition to PQI mode failed\n");
7712 return rc;
7713 }
7714
7715 /* From here on, we are running in PQI mode. */
7716 ctrl_info->pqi_mode_enabled = true;
ff6abb73 7717 pqi_save_ctrl_mode(ctrl_info, PQI_MODE);
6c223761
KB		 7718
7719 rc = pqi_alloc_admin_queues(ctrl_info);
7720 if (rc) {
7721 dev_err(&ctrl_info->pci_dev->dev,
d87d5474 7722 "failed to allocate admin queues\n");
6c223761
KB		 7723 return rc;
7724 }
7725
7726 rc = pqi_create_admin_queues(ctrl_info);
7727 if (rc) {
7728 dev_err(&ctrl_info->pci_dev->dev,
7729 "error creating admin queues\n");
7730 return rc;
7731 }
7732
7733 rc = pqi_report_device_capability(ctrl_info);
7734 if (rc) {
7735 dev_err(&ctrl_info->pci_dev->dev,
7736 "obtaining device capability failed\n");
7737 return rc;
7738 }
7739
7740 rc = pqi_validate_device_capability(ctrl_info);
7741 if (rc)
7742 return rc;
7743
7744 pqi_calculate_queue_resources(ctrl_info);
7745
7746 rc = pqi_enable_msix_interrupts(ctrl_info);
7747 if (rc)
7748 return rc;
7749
7750 if (ctrl_info->num_msix_vectors_enabled < ctrl_info->num_queue_groups) {
7751 ctrl_info->max_msix_vectors =
7752 ctrl_info->num_msix_vectors_enabled;
7753 pqi_calculate_queue_resources(ctrl_info);
7754 }
7755
7756 rc = pqi_alloc_io_resources(ctrl_info);
7757 if (rc)
7758 return rc;
7759
7760 rc = pqi_alloc_operational_queues(ctrl_info);
d87d5474
KB		 7761 if (rc) {
7762 dev_err(&ctrl_info->pci_dev->dev,
7763 "failed to allocate operational queues\n");
6c223761 7764 return rc;
d87d5474 7765 }
6c223761
KB		 7766
7767 pqi_init_operational_queues(ctrl_info);
7768
7769 rc = pqi_request_irqs(ctrl_info);
7770 if (rc)
7771 return rc;
7772
6c223761
KB		 7773 rc = pqi_create_queues(ctrl_info);
7774 if (rc)
7775 return rc;
7776
061ef06a
KB		 7777 pqi_change_irq_mode(ctrl_info, IRQ_MODE_MSIX);
7778
7779 ctrl_info->controller_online = true;
b212c251
KB		 7780
7781 rc = pqi_process_config_table(ctrl_info);
7782 if (rc)
7783 return rc;
7784
061ef06a 7785 pqi_start_heartbeat_timer(ctrl_info);
6c223761 7786
f6cc2a77
KB		 7787 if (ctrl_info->enable_r5_writes || ctrl_info->enable_r6_writes) {
7788 rc = pqi_get_advanced_raid_bypass_config(ctrl_info);
7789 if (rc) { /* Supported features not returned correctly. */
7790 dev_err(&ctrl_info->pci_dev->dev,
7791 "error obtaining advanced RAID bypass configuration\n");
7792 return rc;
7793 }
7794 ctrl_info->ciss_report_log_flags |=
7795 CISS_REPORT_LOG_FLAG_DRIVE_TYPE_MIX;
7796 }
7797
6a50d6ad 7798 rc = pqi_enable_events(ctrl_info);
6c223761
KB		 7799 if (rc) {
7800 dev_err(&ctrl_info->pci_dev->dev,
6a50d6ad 7801 "error enabling events\n");
6c223761
KB		 7802 return rc;
7803 }
7804
6c223761
KB		 7805 /* Register with the SCSI subsystem. */
7806 rc = pqi_register_scsi(ctrl_info);
7807 if (rc)
7808 return rc;
7809
6d90615f
MB		 7810 rc = pqi_get_ctrl_product_details(ctrl_info);
7811 if (rc) {
7812 dev_err(&ctrl_info->pci_dev->dev,
7813 "error obtaining product details\n");
7814 return rc;
7815 }
7816
7817 rc = pqi_get_ctrl_serial_number(ctrl_info);
6c223761
KB		 7818 if (rc) {
7819 dev_err(&ctrl_info->pci_dev->dev,
6d90615f 7820 "error obtaining ctrl serial number\n");
6c223761
KB		 7821 return rc;
7822 }
7823
171c2865
DC		 7824 rc = pqi_set_diag_rescan(ctrl_info);
7825 if (rc) {
7826 dev_err(&ctrl_info->pci_dev->dev,
7827 "error enabling multi-lun rescan\n");
7828 return rc;
7829 }
7830
6c223761
KB		 7831 rc = pqi_write_driver_version_to_host_wellness(ctrl_info);
7832 if (rc) {
7833 dev_err(&ctrl_info->pci_dev->dev,
7834 "error updating host wellness\n");
7835 return rc;
7836 }
7837
7838 pqi_schedule_update_time_worker(ctrl_info);
7839
7840 pqi_scan_scsi_devices(ctrl_info);
7841
7842 return 0;
7843}
7844
061ef06a
KB		 7845static void pqi_reinit_queues(struct pqi_ctrl_info *ctrl_info)
7846{
7847 unsigned int i;
7848 struct pqi_admin_queues *admin_queues;
7849 struct pqi_event_queue *event_queue;
7850
7851 admin_queues = &ctrl_info->admin_queues;
7852 admin_queues->iq_pi_copy = 0;
7853 admin_queues->oq_ci_copy = 0;
dac12fbc 7854 writel(0, admin_queues->oq_pi);
061ef06a
KB		 7855
7856 for (i = 0; i < ctrl_info->num_queue_groups; i++) {
7857 ctrl_info->queue_groups[i].iq_pi_copy[RAID_PATH] = 0;
7858 ctrl_info->queue_groups[i].iq_pi_copy[AIO_PATH] = 0;
7859 ctrl_info->queue_groups[i].oq_ci_copy = 0;
7860
dac12fbc
KB		 7861 writel(0, ctrl_info->queue_groups[i].iq_ci[RAID_PATH]);
7862 writel(0, ctrl_info->queue_groups[i].iq_ci[AIO_PATH]);
7863 writel(0, ctrl_info->queue_groups[i].oq_pi);
061ef06a
KB		 7864 }
7865
7866 event_queue = &ctrl_info->event_queue;
dac12fbc 7867 writel(0, event_queue->oq_pi);
061ef06a
KB		 7868 event_queue->oq_ci_copy = 0;
7869}
7870
7871static int pqi_ctrl_init_resume(struct pqi_ctrl_info *ctrl_info)
7872{
7873 int rc;
7874
7875 rc = pqi_force_sis_mode(ctrl_info);
7876 if (rc)
7877 return rc;
7878
7879 /*
7880 * Wait until the controller is ready to start accepting SIS
7881 * commands.
7882 */
7883 rc = sis_wait_for_ctrl_ready_resume(ctrl_info);
7884 if (rc)
7885 return rc;
7886
4fd22c13
MR		 7887 /*
7888 * Get the controller properties. This allows us to determine
7889 * whether or not it supports PQI mode.
7890 */
7891 rc = sis_get_ctrl_properties(ctrl_info);
7892 if (rc) {
7893 dev_err(&ctrl_info->pci_dev->dev,
7894 "error obtaining controller properties\n");
7895 return rc;
7896 }
7897
7898 rc = sis_get_pqi_capabilities(ctrl_info);
7899 if (rc) {
7900 dev_err(&ctrl_info->pci_dev->dev,
7901 "error obtaining controller capabilities\n");
7902 return rc;
7903 }
7904
061ef06a
KB		 7905 /*
7906 * If the function we are about to call succeeds, the
7907 * controller will transition from legacy SIS mode
7908 * into PQI mode.
7909 */
7910 rc = sis_init_base_struct_addr(ctrl_info);
7911 if (rc) {
7912 dev_err(&ctrl_info->pci_dev->dev,
7913 "error initializing PQI mode\n");
7914 return rc;
7915 }
7916
7917 /* Wait for the controller to complete the SIS -> PQI transition. */
7918 rc = pqi_wait_for_pqi_mode_ready(ctrl_info);
7919 if (rc) {
7920 dev_err(&ctrl_info->pci_dev->dev,
7921 "transition to PQI mode failed\n");
7922 return rc;
7923 }
7924
7925 /* From here on, we are running in PQI mode. */
7926 ctrl_info->pqi_mode_enabled = true;
7927 pqi_save_ctrl_mode(ctrl_info, PQI_MODE);
7928
7929 pqi_reinit_queues(ctrl_info);
7930
7931 rc = pqi_create_admin_queues(ctrl_info);
7932 if (rc) {
7933 dev_err(&ctrl_info->pci_dev->dev,
7934 "error creating admin queues\n");
7935 return rc;
7936 }
7937
7938 rc = pqi_create_queues(ctrl_info);
7939 if (rc)
7940 return rc;
7941
7942 pqi_change_irq_mode(ctrl_info, IRQ_MODE_MSIX);
7943
7944 ctrl_info->controller_online = true;
061ef06a
KB		 7945 pqi_ctrl_unblock_requests(ctrl_info);
7946
4ccc354b
KB		 7947 pqi_ctrl_reset_config(ctrl_info);
7948
4fd22c13
MR		 7949 rc = pqi_process_config_table(ctrl_info);
7950 if (rc)
7951 return rc;
7952
7953 pqi_start_heartbeat_timer(ctrl_info);
7954
f6cc2a77
KB		 7955 if (ctrl_info->enable_r5_writes || ctrl_info->enable_r6_writes) {
7956 rc = pqi_get_advanced_raid_bypass_config(ctrl_info);
7957 if (rc) {
7958 dev_err(&ctrl_info->pci_dev->dev,
7959 "error obtaining advanced RAID bypass configuration\n");
7960 return rc;
7961 }
7962 ctrl_info->ciss_report_log_flags |=
7963 CISS_REPORT_LOG_FLAG_DRIVE_TYPE_MIX;
7964 }
7965
061ef06a
KB		 7966 rc = pqi_enable_events(ctrl_info);
7967 if (rc) {
7968 dev_err(&ctrl_info->pci_dev->dev,
d87d5474 7969 "error enabling events\n");
061ef06a
KB		 7970 return rc;
7971 }
7972
6d90615f 7973 rc = pqi_get_ctrl_product_details(ctrl_info);
4fd22c13
MR		 7974 if (rc) {
7975 dev_err(&ctrl_info->pci_dev->dev,
694c5d5b 7976 "error obtaining product details\n");
4fd22c13
MR		 7977 return rc;
7978 }
7979
171c2865
DC		 7980 rc = pqi_set_diag_rescan(ctrl_info);
7981 if (rc) {
7982 dev_err(&ctrl_info->pci_dev->dev,
7983 "error enabling multi-lun rescan\n");
7984 return rc;
7985 }
7986
061ef06a
KB		 7987 rc = pqi_write_driver_version_to_host_wellness(ctrl_info);
7988 if (rc) {
7989 dev_err(&ctrl_info->pci_dev->dev,
7990 "error updating host wellness\n");
7991 return rc;
7992 }
7993
2790cd4d
KB		 7994 if (pqi_ofa_in_progress(ctrl_info))
7995 pqi_ctrl_unblock_scan(ctrl_info);
061ef06a
KB		 7996
7997 pqi_scan_scsi_devices(ctrl_info);
7998
7999 return 0;
8000}
8001
583891c9 8002static inline int pqi_set_pcie_completion_timeout(struct pci_dev *pci_dev, u16 timeout)
a81ed5f3 8003{
d20df83b
BOS		 8004 int rc;
8005
8006 rc = pcie_capability_clear_and_set_word(pci_dev, PCI_EXP_DEVCTL2,
a81ed5f3 8007 PCI_EXP_DEVCTL2_COMP_TIMEOUT, timeout);
d20df83b
BOS		 8008
8009 return pcibios_err_to_errno(rc);
a81ed5f3
KB		 8010}
8011
6c223761
KB		 8012static int pqi_pci_init(struct pqi_ctrl_info *ctrl_info)
8013{
8014 int rc;
8015 u64 mask;
8016
8017 rc = pci_enable_device(ctrl_info->pci_dev);
8018 if (rc) {
8019 dev_err(&ctrl_info->pci_dev->dev,
8020 "failed to enable PCI device\n");
8021 return rc;
8022 }
8023
8024 if (sizeof(dma_addr_t) > 4)
8025 mask = DMA_BIT_MASK(64);
8026 else
8027 mask = DMA_BIT_MASK(32);
8028
1d94f06e 8029 rc = dma_set_mask_and_coherent(&ctrl_info->pci_dev->dev, mask);
6c223761
KB		 8030 if (rc) {
8031 dev_err(&ctrl_info->pci_dev->dev, "failed to set DMA mask\n");
8032 goto disable_device;
8033 }
8034
8035 rc = pci_request_regions(ctrl_info->pci_dev, DRIVER_NAME_SHORT);
8036 if (rc) {
8037 dev_err(&ctrl_info->pci_dev->dev,
8038 "failed to obtain PCI resources\n");
8039 goto disable_device;
8040 }
8041
4bdc0d67 8042 ctrl_info->iomem_base = ioremap(pci_resource_start(
6c223761
KB		 8043 ctrl_info->pci_dev, 0),
8044 sizeof(struct pqi_ctrl_registers));
8045 if (!ctrl_info->iomem_base) {
8046 dev_err(&ctrl_info->pci_dev->dev,
8047 "failed to map memory for controller registers\n");
8048 rc = -ENOMEM;
8049 goto release_regions;
8050 }
8051
a81ed5f3
KB		 8052#define PCI_EXP_COMP_TIMEOUT_65_TO_210_MS 0x6
8053
8054 /* Increase the PCIe completion timeout. */
8055 rc = pqi_set_pcie_completion_timeout(ctrl_info->pci_dev,
8056 PCI_EXP_COMP_TIMEOUT_65_TO_210_MS);
8057 if (rc) {
8058 dev_err(&ctrl_info->pci_dev->dev,
8059 "failed to set PCIe completion timeout\n");
8060 goto release_regions;
8061 }
8062
6c223761
KB		 8063 /* Enable bus mastering. */
8064 pci_set_master(ctrl_info->pci_dev);
8065
cbe0c7b1
KB		 8066 ctrl_info->registers = ctrl_info->iomem_base;
8067 ctrl_info->pqi_registers = &ctrl_info->registers->pqi_registers;
8068
6c223761
KB		 8069 pci_set_drvdata(ctrl_info->pci_dev, ctrl_info);
8070
8071 return 0;
8072
8073release_regions:
8074 pci_release_regions(ctrl_info->pci_dev);
8075disable_device:
8076 pci_disable_device(ctrl_info->pci_dev);
8077
8078 return rc;
8079}
8080
8081static void pqi_cleanup_pci_init(struct pqi_ctrl_info *ctrl_info)
8082{
8083 iounmap(ctrl_info->iomem_base);
8084 pci_release_regions(ctrl_info->pci_dev);
cbe0c7b1
KB		 8085 if (pci_is_enabled(ctrl_info->pci_dev))
8086 pci_disable_device(ctrl_info->pci_dev);
6c223761
KB		 8087 pci_set_drvdata(ctrl_info->pci_dev, NULL);
8088}
8089
8090static struct pqi_ctrl_info *pqi_alloc_ctrl_info(int numa_node)
8091{
8092 struct pqi_ctrl_info *ctrl_info;
8093
8094 ctrl_info = kzalloc_node(sizeof(struct pqi_ctrl_info),
8095 GFP_KERNEL, numa_node);
8096 if (!ctrl_info)
8097 return NULL;
8098
8099 mutex_init(&ctrl_info->scan_mutex);
7561a7e4 8100 mutex_init(&ctrl_info->lun_reset_mutex);
4fd22c13 8101 mutex_init(&ctrl_info->ofa_mutex);
6c223761
KB		 8102
8103 INIT_LIST_HEAD(&ctrl_info->scsi_device_list);
8104 spin_lock_init(&ctrl_info->scsi_device_list_lock);
8105
8106 INIT_WORK(&ctrl_info->event_work, pqi_event_worker);
8107 atomic_set(&ctrl_info->num_interrupts, 0);
8108
8109 INIT_DELAYED_WORK(&ctrl_info->rescan_work, pqi_rescan_worker);
8110 INIT_DELAYED_WORK(&ctrl_info->update_time_work, pqi_update_time_worker);
8111
74a0f573 8112 timer_setup(&ctrl_info->heartbeat_timer, pqi_heartbeat_timer_handler, 0);
5f310425 8113 INIT_WORK(&ctrl_info->ctrl_offline_work, pqi_ctrl_offline_worker);
98f87667 8114
2790cd4d
KB		 8115 INIT_WORK(&ctrl_info->ofa_memory_alloc_work, pqi_ofa_memory_alloc_worker);
8116 INIT_WORK(&ctrl_info->ofa_quiesce_work, pqi_ofa_quiesce_worker);
8117
6c223761
KB		 8118 sema_init(&ctrl_info->sync_request_sem,
8119 PQI_RESERVED_IO_SLOTS_SYNCHRONOUS_REQUESTS);
7561a7e4 8120 init_waitqueue_head(&ctrl_info->block_requests_wait);
6c223761
KB		 8121
8122 ctrl_info->ctrl_id = atomic_inc_return(&pqi_controller_count) - 1;
061ef06a 8123 ctrl_info->irq_mode = IRQ_MODE_NONE;
6c223761
KB		 8124 ctrl_info->max_msix_vectors = PQI_MAX_MSIX_VECTORS;
8125
f6cc2a77
KB		 8126 ctrl_info->ciss_report_log_flags = CISS_REPORT_LOG_FLAG_UNIQUE_LUN_ID;
8127 ctrl_info->max_transfer_encrypted_sas_sata =
8128 PQI_DEFAULT_MAX_TRANSFER_ENCRYPTED_SAS_SATA;
8129 ctrl_info->max_transfer_encrypted_nvme =
8130 PQI_DEFAULT_MAX_TRANSFER_ENCRYPTED_NVME;
8131 ctrl_info->max_write_raid_5_6 = PQI_DEFAULT_MAX_WRITE_RAID_5_6;
8132 ctrl_info->max_write_raid_1_10_2drive = ~0;
8133 ctrl_info->max_write_raid_1_10_3drive = ~0;
8134
6c223761
KB		 8135 return ctrl_info;
8136}
8137
8138static inline void pqi_free_ctrl_info(struct pqi_ctrl_info *ctrl_info)
8139{
8140 kfree(ctrl_info);
8141}
8142
8143static void pqi_free_interrupts(struct pqi_ctrl_info *ctrl_info)
8144{
98bf061b
KB		 8145 pqi_free_irqs(ctrl_info);
8146 pqi_disable_msix_interrupts(ctrl_info);
6c223761
KB		 8147}
8148
8149static void pqi_free_ctrl_resources(struct pqi_ctrl_info *ctrl_info)
8150{
8151 pqi_stop_heartbeat_timer(ctrl_info);
8152 pqi_free_interrupts(ctrl_info);
8153 if (ctrl_info->queue_memory_base)
8154 dma_free_coherent(&ctrl_info->pci_dev->dev,
8155 ctrl_info->queue_memory_length,
8156 ctrl_info->queue_memory_base,
8157 ctrl_info->queue_memory_base_dma_handle);
8158 if (ctrl_info->admin_queue_memory_base)
8159 dma_free_coherent(&ctrl_info->pci_dev->dev,
8160 ctrl_info->admin_queue_memory_length,
8161 ctrl_info->admin_queue_memory_base,
8162 ctrl_info->admin_queue_memory_base_dma_handle);
8163 pqi_free_all_io_requests(ctrl_info);
8164 if (ctrl_info->error_buffer)
8165 dma_free_coherent(&ctrl_info->pci_dev->dev,
8166 ctrl_info->error_buffer_length,
8167 ctrl_info->error_buffer,
8168 ctrl_info->error_buffer_dma_handle);
8169 if (ctrl_info->iomem_base)
8170 pqi_cleanup_pci_init(ctrl_info);
8171 pqi_free_ctrl_info(ctrl_info);
8172}
8173
8174static void pqi_remove_ctrl(struct pqi_ctrl_info *ctrl_info)
8175{
061ef06a
KB		 8176 pqi_cancel_rescan_worker(ctrl_info);
8177 pqi_cancel_update_time_worker(ctrl_info);
e57a1f9b 8178 pqi_unregister_scsi(ctrl_info);
162d7753
KB		 8179 if (ctrl_info->pqi_mode_enabled)
8180 pqi_revert_to_sis_mode(ctrl_info);
6c223761
KB		 8181 pqi_free_ctrl_resources(ctrl_info);
8182}
8183
4fd22c13
MR		 8184static void pqi_ofa_ctrl_quiesce(struct pqi_ctrl_info *ctrl_info)
8185{
2790cd4d
KB		 8186 pqi_ctrl_block_scan(ctrl_info);
8187 pqi_scsi_block_requests(ctrl_info);
8188 pqi_ctrl_block_device_reset(ctrl_info);
4fd22c13
MR		 8189 pqi_ctrl_block_requests(ctrl_info);
8190 pqi_ctrl_wait_until_quiesced(ctrl_info);
4fd22c13 8191 pqi_stop_heartbeat_timer(ctrl_info);
4fd22c13
MR		 8192}
8193
8194static void pqi_ofa_ctrl_unquiesce(struct pqi_ctrl_info *ctrl_info)
8195{
4fd22c13 8196 pqi_start_heartbeat_timer(ctrl_info);
2790cd4d
KB		 8197 pqi_ctrl_unblock_requests(ctrl_info);
8198 pqi_ctrl_unblock_device_reset(ctrl_info);
8199 pqi_scsi_unblock_requests(ctrl_info);
8200 pqi_ctrl_unblock_scan(ctrl_info);
4fd22c13
MR		 8201}
8202
2790cd4d 8203static int pqi_ofa_alloc_mem(struct pqi_ctrl_info *ctrl_info, u32 total_size, u32 chunk_size)
4fd22c13 8204{
4fd22c13 8205 int i;
2790cd4d 8206 u32 sg_count;
4fd22c13
MR		 8207 struct device *dev;
8208 struct pqi_ofa_memory *ofap;
2790cd4d
KB		 8209 struct pqi_sg_descriptor *mem_descriptor;
8210 dma_addr_t dma_handle;
4fd22c13
MR		 8211
8212 ofap = ctrl_info->pqi_ofa_mem_virt_addr;
8213
2790cd4d
KB		 8214 sg_count = DIV_ROUND_UP(total_size, chunk_size);
8215 if (sg_count == 0 || sg_count > PQI_OFA_MAX_SG_DESCRIPTORS)
4fd22c13
MR		 8216 goto out;
8217
2790cd4d 8218 ctrl_info->pqi_ofa_chunk_virt_addr = kmalloc_array(sg_count, sizeof(void *), GFP_KERNEL);
4fd22c13
MR		 8219 if (!ctrl_info->pqi_ofa_chunk_virt_addr)
8220 goto out;
8221
2790cd4d 8222 dev = &ctrl_info->pci_dev->dev;
4fd22c13 8223
2790cd4d 8224 for (i = 0; i < sg_count; i++) {
4fd22c13 8225 ctrl_info->pqi_ofa_chunk_virt_addr[i] =
2790cd4d 8226 dma_alloc_coherent(dev, chunk_size, &dma_handle, GFP_KERNEL);
4fd22c13 8227 if (!ctrl_info->pqi_ofa_chunk_virt_addr[i])
2790cd4d 8228 goto out_free_chunks;
4fd22c13 8229 mem_descriptor = &ofap->sg_descriptor[i];
583891c9
KB		 8230 put_unaligned_le64((u64)dma_handle, &mem_descriptor->address);
8231 put_unaligned_le32(chunk_size, &mem_descriptor->length);
4fd22c13
MR		 8232 }
8233
4fd22c13
MR		 8234 put_unaligned_le32(CISS_SG_LAST, &mem_descriptor->flags);
8235 put_unaligned_le16(sg_count, &ofap->num_memory_descriptors);
2790cd4d 8236 put_unaligned_le32(sg_count * chunk_size, &ofap->bytes_allocated);
4fd22c13
MR		 8237
8238 return 0;
8239
8240out_free_chunks:
8241 while (--i >= 0) {
8242 mem_descriptor = &ofap->sg_descriptor[i];
8243 dma_free_coherent(dev, chunk_size,
2790cd4d
KB		 8244 ctrl_info->pqi_ofa_chunk_virt_addr[i],
8245 get_unaligned_le64(&mem_descriptor->address));
4fd22c13
MR		 8246 }
8247 kfree(ctrl_info->pqi_ofa_chunk_virt_addr);
8248
8249out:
4fd22c13
MR		 8250 return -ENOMEM;
8251}
8252
8253static int pqi_ofa_alloc_host_buffer(struct pqi_ctrl_info *ctrl_info)
8254{
8255 u32 total_size;
2790cd4d 8256 u32 chunk_size;
4fd22c13 8257 u32 min_chunk_size;
4fd22c13 8258
2790cd4d
KB		 8259 if (ctrl_info->ofa_bytes_requested == 0)
8260 return 0;
4fd22c13 8261
2790cd4d
KB		 8262 total_size = PAGE_ALIGN(ctrl_info->ofa_bytes_requested);
8263 min_chunk_size = DIV_ROUND_UP(total_size, PQI_OFA_MAX_SG_DESCRIPTORS);
8264 min_chunk_size = PAGE_ALIGN(min_chunk_size);
8265
8266 for (chunk_size = total_size; chunk_size >= min_chunk_size;) {
8267 if (pqi_ofa_alloc_mem(ctrl_info, total_size, chunk_size) == 0)
4fd22c13 8268 return 0;
2790cd4d
KB		 8269 chunk_size /= 2;
8270 chunk_size = PAGE_ALIGN(chunk_size);
8271 }
4fd22c13
MR		 8272
8273 return -ENOMEM;
8274}
8275
2790cd4d 8276static void pqi_ofa_setup_host_buffer(struct pqi_ctrl_info *ctrl_info)
4fd22c13 8277{
4fd22c13 8278 struct device *dev;
2790cd4d 8279 struct pqi_ofa_memory *ofap;
4fd22c13
MR		 8280
8281 dev = &ctrl_info->pci_dev->dev;
4fd22c13 8282
2790cd4d
KB		 8283 ofap = dma_alloc_coherent(dev, sizeof(*ofap),
8284 &ctrl_info->pqi_ofa_mem_dma_handle, GFP_KERNEL);
8285 if (!ofap)
4fd22c13
MR		 8286 return;
8287
2790cd4d 8288 ctrl_info->pqi_ofa_mem_virt_addr = ofap;
4fd22c13
MR		 8289
8290 if (pqi_ofa_alloc_host_buffer(ctrl_info) < 0) {
2790cd4d
KB		 8291 dev_err(dev,
8292 "failed to allocate host buffer for Online Firmware Activation\n");
8293 dma_free_coherent(dev, sizeof(*ofap), ofap, ctrl_info->pqi_ofa_mem_dma_handle);
8294 ctrl_info->pqi_ofa_mem_virt_addr = NULL;
8295 return;
4fd22c13 8296 }
694c5d5b 8297
2790cd4d
KB		 8298 put_unaligned_le16(PQI_OFA_VERSION, &ofap->version);
8299 memcpy(&ofap->signature, PQI_OFA_SIGNATURE, sizeof(ofap->signature));
4fd22c13
MR		 8300}
8301
8302static void pqi_ofa_free_host_buffer(struct pqi_ctrl_info *ctrl_info)
8303{
2790cd4d
KB		 8304 unsigned int i;
8305 struct device *dev;
4fd22c13 8306 struct pqi_ofa_memory *ofap;
2790cd4d
KB		 8307 struct pqi_sg_descriptor *mem_descriptor;
8308 unsigned int num_memory_descriptors;
4fd22c13
MR		 8309
8310 ofap = ctrl_info->pqi_ofa_mem_virt_addr;
4fd22c13
MR		 8311 if (!ofap)
8312 return;
8313
2790cd4d
KB		 8314 dev = &ctrl_info->pci_dev->dev;
8315
8316 if (get_unaligned_le32(&ofap->bytes_allocated) == 0)
4fd22c13
MR		 8317 goto out;
8318
8319 mem_descriptor = ofap->sg_descriptor;
2790cd4d
KB		 8320 num_memory_descriptors =
8321 get_unaligned_le16(&ofap->num_memory_descriptors);
4fd22c13 8322
2790cd4d
KB		 8323 for (i = 0; i < num_memory_descriptors; i++) {
8324 dma_free_coherent(dev,
4fd22c13
MR		 8325 get_unaligned_le32(&mem_descriptor[i].length),
8326 ctrl_info->pqi_ofa_chunk_virt_addr[i],
8327 get_unaligned_le64(&mem_descriptor[i].address));
8328 }
8329 kfree(ctrl_info->pqi_ofa_chunk_virt_addr);
8330
8331out:
2790cd4d
KB		 8332 dma_free_coherent(dev, sizeof(*ofap), ofap,
8333 ctrl_info->pqi_ofa_mem_dma_handle);
4fd22c13
MR		 8334 ctrl_info->pqi_ofa_mem_virt_addr = NULL;
8335}
8336
8337static int pqi_ofa_host_memory_update(struct pqi_ctrl_info *ctrl_info)
8338{
2790cd4d 8339 u32 buffer_length;
4fd22c13 8340 struct pqi_vendor_general_request request;
4fd22c13
MR		 8341 struct pqi_ofa_memory *ofap;
8342
8343 memset(&request, 0, sizeof(request));
8344
4fd22c13
MR		 8345 request.header.iu_type = PQI_REQUEST_IU_VENDOR_GENERAL;
8346 put_unaligned_le16(sizeof(request) - PQI_REQUEST_HEADER_LENGTH,
8347 &request.header.iu_length);
8348 put_unaligned_le16(PQI_VENDOR_GENERAL_HOST_MEMORY_UPDATE,
8349 &request.function_code);
8350
2790cd4d
KB		 8351 ofap = ctrl_info->pqi_ofa_mem_virt_addr;
8352
4fd22c13 8353 if (ofap) {
2790cd4d 8354 buffer_length = offsetof(struct pqi_ofa_memory, sg_descriptor) +
4fd22c13
MR		 8355 get_unaligned_le16(&ofap->num_memory_descriptors) *
8356 sizeof(struct pqi_sg_descriptor);
8357
8358 put_unaligned_le64((u64)ctrl_info->pqi_ofa_mem_dma_handle,
8359 &request.data.ofa_memory_allocation.buffer_address);
2790cd4d 8360 put_unaligned_le32(buffer_length,
4fd22c13 8361 &request.data.ofa_memory_allocation.buffer_length);
4fd22c13
MR		 8362 }
8363
ae0c189d 8364 return pqi_submit_raid_request_synchronous(ctrl_info, &request.header, 0, NULL);
4fd22c13
MR		 8365}
8366
2790cd4d 8367static int pqi_ofa_ctrl_restart(struct pqi_ctrl_info *ctrl_info, unsigned int delay_secs)
4fd22c13 8368{
2790cd4d
KB		 8369 ssleep(delay_secs);
8370
4fd22c13
MR		 8371 return pqi_ctrl_init_resume(ctrl_info);
8372}
8373
3c50976f
KB		 8374static void pqi_perform_lockup_action(void)
8375{
8376 switch (pqi_lockup_action) {
8377 case PANIC:
8378 panic("FATAL: Smart Family Controller lockup detected");
8379 break;
8380 case REBOOT:
8381 emergency_restart();
8382 break;
8383 case NONE:
8384 default:
8385 break;
8386 }
8387}
8388
5f310425
KB		 8389static struct pqi_raid_error_info pqi_ctrl_offline_raid_error_info = {
8390 .data_out_result = PQI_DATA_IN_OUT_HARDWARE_ERROR,
8391 .status = SAM_STAT_CHECK_CONDITION,
8392};
8393
8394static void pqi_fail_all_outstanding_requests(struct pqi_ctrl_info *ctrl_info)
376fb880
KB		 8395{
8396 unsigned int i;
376fb880 8397 struct pqi_io_request *io_request;
376fb880
KB		 8398 struct scsi_cmnd *scmd;
8399
5f310425
KB		 8400 for (i = 0; i < ctrl_info->max_io_slots; i++) {
8401 io_request = &ctrl_info->io_request_pool[i];
8402 if (atomic_read(&io_request->refcount) == 0)
8403 continue;
376fb880 8404
5f310425
KB		 8405 scmd = io_request->scmd;
8406 if (scmd) {
8407 set_host_byte(scmd, DID_NO_CONNECT);
8408 } else {
8409 io_request->status = -ENXIO;
8410 io_request->error_info =
8411 &pqi_ctrl_offline_raid_error_info;
376fb880 8412 }
5f310425
KB		 8413
8414 io_request->io_complete_callback(io_request,
8415 io_request->context);
376fb880
KB		 8416 }
8417}
8418
5f310425 8419static void pqi_take_ctrl_offline_deferred(struct pqi_ctrl_info *ctrl_info)
376fb880 8420{
5f310425
KB		 8421 pqi_perform_lockup_action();
8422 pqi_stop_heartbeat_timer(ctrl_info);
8423 pqi_free_interrupts(ctrl_info);
8424 pqi_cancel_rescan_worker(ctrl_info);
8425 pqi_cancel_update_time_worker(ctrl_info);
8426 pqi_ctrl_wait_until_quiesced(ctrl_info);
8427 pqi_fail_all_outstanding_requests(ctrl_info);
5f310425
KB		 8428 pqi_ctrl_unblock_requests(ctrl_info);
8429}
8430
8431static void pqi_ctrl_offline_worker(struct work_struct *work)
8432{
8433 struct pqi_ctrl_info *ctrl_info;
8434
8435 ctrl_info = container_of(work, struct pqi_ctrl_info, ctrl_offline_work);
8436 pqi_take_ctrl_offline_deferred(ctrl_info);
376fb880
KB		 8437}
8438
8439static void pqi_take_ctrl_offline(struct pqi_ctrl_info *ctrl_info)
8440{
5f310425
KB		 8441 if (!ctrl_info->controller_online)
8442 return;
8443
376fb880 8444 ctrl_info->controller_online = false;
5f310425
KB		 8445 ctrl_info->pqi_mode_enabled = false;
8446 pqi_ctrl_block_requests(ctrl_info);
5a259e32
KB		 8447 if (!pqi_disable_ctrl_shutdown)
8448 sis_shutdown_ctrl(ctrl_info);
376fb880
KB		 8449 pci_disable_device(ctrl_info->pci_dev);
8450 dev_err(&ctrl_info->pci_dev->dev, "controller offline\n");
5f310425 8451 schedule_work(&ctrl_info->ctrl_offline_work);
376fb880
KB		 8452}
8453
d91d7820 8454static void pqi_print_ctrl_info(struct pci_dev *pci_dev,
6c223761
KB		 8455 const struct pci_device_id *id)
8456{
8457 char *ctrl_description;
8458
37b36847 8459 if (id->driver_data)
6c223761 8460 ctrl_description = (char *)id->driver_data;
37b36847
KB		 8461 else
8462 ctrl_description = "Microsemi Smart Family Controller";
6c223761 8463
d91d7820 8464 dev_info(&pci_dev->dev, "%s found\n", ctrl_description);
6c223761
KB		 8465}
8466
d91d7820
KB		 8467static int pqi_pci_probe(struct pci_dev *pci_dev,
8468 const struct pci_device_id *id)
6c223761
KB		 8469{
8470 int rc;
62dc51fb 8471 int node, cp_node;
6c223761
KB		 8472 struct pqi_ctrl_info *ctrl_info;
8473
d91d7820 8474 pqi_print_ctrl_info(pci_dev, id);
6c223761
KB		 8475
8476 if (pqi_disable_device_id_wildcards &&
8477 id->subvendor == PCI_ANY_ID &&
8478 id->subdevice == PCI_ANY_ID) {
d91d7820 8479 dev_warn(&pci_dev->dev,
6c223761
KB		 8480 "controller not probed because device ID wildcards are disabled\n");
8481 return -ENODEV;
8482 }
8483
8484 if (id->subvendor == PCI_ANY_ID || id->subdevice == PCI_ANY_ID)
d91d7820 8485 dev_warn(&pci_dev->dev,
6c223761
KB		 8486 "controller device ID matched using wildcards\n");
8487
d91d7820 8488 node = dev_to_node(&pci_dev->dev);
62dc51fb
SB		 8489 if (node == NUMA_NO_NODE) {
8490 cp_node = cpu_to_node(0);
8491 if (cp_node == NUMA_NO_NODE)
8492 cp_node = 0;
8493 set_dev_node(&pci_dev->dev, cp_node);
8494 }
6c223761
KB		 8495
8496 ctrl_info = pqi_alloc_ctrl_info(node);
8497 if (!ctrl_info) {
d91d7820 8498 dev_err(&pci_dev->dev,
6c223761
KB		 8499 "failed to allocate controller info block\n");
8500 return -ENOMEM;
8501 }
8502
d91d7820 8503 ctrl_info->pci_dev = pci_dev;
6c223761
KB		 8504
8505 rc = pqi_pci_init(ctrl_info);
8506 if (rc)
8507 goto error;
8508
8509 rc = pqi_ctrl_init(ctrl_info);
8510 if (rc)
8511 goto error;
8512
8513 return 0;
8514
8515error:
8516 pqi_remove_ctrl(ctrl_info);
8517
8518 return rc;
8519}
8520
d91d7820 8521static void pqi_pci_remove(struct pci_dev *pci_dev)
6c223761
KB		 8522{
8523 struct pqi_ctrl_info *ctrl_info;
8524
d91d7820 8525 ctrl_info = pci_get_drvdata(pci_dev);
6c223761
KB		 8526 if (!ctrl_info)
8527 return;
8528
8529 pqi_remove_ctrl(ctrl_info);
8530}
8531
0530736e
KB		 8532static void pqi_crash_if_pending_command(struct pqi_ctrl_info *ctrl_info)
8533{
8534 unsigned int i;
8535 struct pqi_io_request *io_request;
8536 struct scsi_cmnd *scmd;
8537
8538 for (i = 0; i < ctrl_info->max_io_slots; i++) {
8539 io_request = &ctrl_info->io_request_pool[i];
8540 if (atomic_read(&io_request->refcount) == 0)
8541 continue;
8542 scmd = io_request->scmd;
8543 WARN_ON(scmd != NULL); /* IO command from SML */
8544 WARN_ON(scmd == NULL); /* Non-IO cmd or driver initiated*/
8545 }
8546}
8547
d91d7820 8548static void pqi_shutdown(struct pci_dev *pci_dev)
6c223761
KB		 8549{
8550 int rc;
8551 struct pqi_ctrl_info *ctrl_info;
8552
d91d7820 8553 ctrl_info = pci_get_drvdata(pci_dev);
0530736e
KB		 8554 if (!ctrl_info) {
8555 dev_err(&pci_dev->dev,
8556 "cache could not be flushed\n");
8557 return;
8558 }
8559
0530736e 8560 pqi_wait_until_ofa_finished(ctrl_info);
0530736e 8561
9fa82023 8562 pqi_scsi_block_requests(ctrl_info);
0530736e 8563 pqi_ctrl_block_device_reset(ctrl_info);
9fa82023
KB		 8564 pqi_ctrl_block_requests(ctrl_info);
8565 pqi_ctrl_wait_until_quiesced(ctrl_info);
6c223761
KB		 8566
8567 /*
8568 * Write all data in the controller's battery-backed cache to
8569 * storage.
8570 */
58322fe0 8571 rc = pqi_flush_cache(ctrl_info, SHUTDOWN);
0530736e
KB		 8572 if (rc)
8573 dev_err(&pci_dev->dev,
8574 "unable to flush controller cache\n");
8575
0530736e
KB		 8576 pqi_crash_if_pending_command(ctrl_info);
8577 pqi_reset(ctrl_info);
6c223761
KB		 8578}
8579
3c50976f
KB		 8580static void pqi_process_lockup_action_param(void)
8581{
8582 unsigned int i;
8583
8584 if (!pqi_lockup_action_param)
8585 return;
8586
8587 for (i = 0; i < ARRAY_SIZE(pqi_lockup_actions); i++) {
8588 if (strcmp(pqi_lockup_action_param,
8589 pqi_lockup_actions[i].name) == 0) {
8590 pqi_lockup_action = pqi_lockup_actions[i].action;
8591 return;
8592 }
8593 }
8594
8595 pr_warn("%s: invalid lockup action setting \"%s\" - supported settings: none, reboot, panic\n",
8596 DRIVER_NAME_SHORT, pqi_lockup_action_param);
8597}
8598
8599static void pqi_process_module_params(void)
8600{
8601 pqi_process_lockup_action_param();
8602}
8603
5c146686 8604static __maybe_unused int pqi_suspend(struct pci_dev *pci_dev, pm_message_t state)
061ef06a
KB		 8605{
8606 struct pqi_ctrl_info *ctrl_info;
8607
8608 ctrl_info = pci_get_drvdata(pci_dev);
8609
4fd22c13 8610 pqi_wait_until_ofa_finished(ctrl_info);
9fa82023
KB		 8611
8612 pqi_ctrl_block_scan(ctrl_info);
8613 pqi_scsi_block_requests(ctrl_info);
8614 pqi_ctrl_block_device_reset(ctrl_info);
061ef06a
KB		 8615 pqi_ctrl_block_requests(ctrl_info);
8616 pqi_ctrl_wait_until_quiesced(ctrl_info);
9fa82023 8617 pqi_flush_cache(ctrl_info, SUSPEND);
061ef06a
KB		 8618 pqi_stop_heartbeat_timer(ctrl_info);
8619
9fa82023
KB		 8620 pqi_crash_if_pending_command(ctrl_info);
8621
061ef06a
KB		 8622 if (state.event == PM_EVENT_FREEZE)
8623 return 0;
8624
8625 pci_save_state(pci_dev);
8626 pci_set_power_state(pci_dev, pci_choose_state(pci_dev, state));
8627
8628 ctrl_info->controller_online = false;
8629 ctrl_info->pqi_mode_enabled = false;
8630
8631 return 0;
8632}
8633
5c146686 8634static __maybe_unused int pqi_resume(struct pci_dev *pci_dev)
061ef06a
KB		 8635{
8636 int rc;
8637 struct pqi_ctrl_info *ctrl_info;
8638
8639 ctrl_info = pci_get_drvdata(pci_dev);
8640
8641 if (pci_dev->current_state != PCI_D0) {
8642 ctrl_info->max_hw_queue_index = 0;
8643 pqi_free_interrupts(ctrl_info);
8644 pqi_change_irq_mode(ctrl_info, IRQ_MODE_INTX);
8645 rc = request_irq(pci_irq_vector(pci_dev, 0), pqi_irq_handler,
8646 IRQF_SHARED, DRIVER_NAME_SHORT,
8647 &ctrl_info->queue_groups[0]);
8648 if (rc) {
8649 dev_err(&ctrl_info->pci_dev->dev,
8650 "irq %u init failed with error %d\n",
8651 pci_dev->irq, rc);
8652 return rc;
8653 }
43e97ef4 8654 pqi_ctrl_unblock_device_reset(ctrl_info);
061ef06a 8655 pqi_ctrl_unblock_requests(ctrl_info);
9fa82023 8656 pqi_scsi_unblock_requests(ctrl_info);
43e97ef4 8657 pqi_ctrl_unblock_scan(ctrl_info);
061ef06a
KB		 8658 return 0;
8659 }
8660
8661 pci_set_power_state(pci_dev, PCI_D0);
8662 pci_restore_state(pci_dev);
8663
43e97ef4
KB		 8664 pqi_ctrl_unblock_device_reset(ctrl_info);
8665 pqi_ctrl_unblock_requests(ctrl_info);
8666 pqi_scsi_unblock_requests(ctrl_info);
8667 pqi_ctrl_unblock_scan(ctrl_info);
8668
061ef06a
KB		 8669 return pqi_ctrl_init_resume(ctrl_info);
8670}
8671
6c223761
KB		 8672/* Define the PCI IDs for the controllers that we support. */
8673static const struct pci_device_id pqi_pci_id_table[] = {
b0f9408b
KB		 8674 {
8675 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
8676 0x105b, 0x1211)
8677 },
8678 {
8679 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
8680 0x105b, 0x1321)
8681 },
7eddabff
KB		 8682 {
8683 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
8684 0x152d, 0x8a22)
8685 },
8686 {
8687 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
8688 0x152d, 0x8a23)
8689 },
8690 {
8691 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
8692 0x152d, 0x8a24)
8693 },
8694 {
8695 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
8696 0x152d, 0x8a36)
8697 },
8698 {
8699 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
8700 0x152d, 0x8a37)
8701 },
75fbeacc
KB		 8702 {
8703 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
8704 0x193d, 0x8460)
8705 },
0595a0b4
AK		 8706 {
8707 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
8708 0x193d, 0x1104)
8709 },
8710 {
8711 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
8712 0x193d, 0x1105)
8713 },
8714 {
8715 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
8716 0x193d, 0x1106)
8717 },
8718 {
8719 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
8720 0x193d, 0x1107)
8721 },
b0f9408b
KB		 8722 {
8723 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
8724 0x193d, 0x8460)
8725 },
8726 {
8727 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
8728 0x193d, 0x8461)
8729 },
84a77fef
MB		 8730 {
8731 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
8732 0x193d, 0xc460)
8733 },
8734 {
8735 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
8736 0x193d, 0xc461)
8737 },
b0f9408b
KB		 8738 {
8739 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
8740 0x193d, 0xf460)
8741 },
8742 {
8743 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
8744 0x193d, 0xf461)
8745 },
8746 {
8747 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
8748 0x1bd4, 0x0045)
8749 },
8750 {
8751 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
8752 0x1bd4, 0x0046)
8753 },
8754 {
8755 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
8756 0x1bd4, 0x0047)
8757 },
8758 {
8759 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
8760 0x1bd4, 0x0048)
8761 },
9f8d05fa
KB		 8762 {
8763 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
8764 0x1bd4, 0x004a)
8765 },
8766 {
8767 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
8768 0x1bd4, 0x004b)
8769 },
8770 {
8771 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
8772 0x1bd4, 0x004c)
8773 },
63a7956a
GW		 8774 {
8775 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
8776 0x1bd4, 0x004f)
8777 },
75fbeacc
KB		 8778 {
8779 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
8780 0x1bd4, 0x0051)
8781 },
8782 {
8783 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
8784 0x1bd4, 0x0052)
8785 },
8786 {
8787 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
8788 0x1bd4, 0x0053)
8789 },
8790 {
8791 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
8792 0x1bd4, 0x0054)
8793 },
c1b10475
AK		 8794 {
8795 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
8796 0x19e5, 0xd227)
8797 },
8798 {
8799 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
8800 0x19e5, 0xd228)
8801 },
8802 {
8803 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
8804 0x19e5, 0xd229)
8805 },
8806 {
8807 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
8808 0x19e5, 0xd22a)
8809 },
8810 {
8811 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
8812 0x19e5, 0xd22b)
8813 },
8814 {
8815 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
8816 0x19e5, 0xd22c)
8817 },
6c223761
KB		 8818 {
8819 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
8820 PCI_VENDOR_ID_ADAPTEC2, 0x0110)
8821 },
8822 {
8823 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
55790064 8824 PCI_VENDOR_ID_ADAPTEC2, 0x0608)
6c223761
KB		 8825 },
8826 {
8827 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
7eddabff 8828 PCI_VENDOR_ID_ADAPTEC2, 0x0800)
6c223761
KB		 8829 },
8830 {
8831 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
7eddabff 8832 PCI_VENDOR_ID_ADAPTEC2, 0x0801)
6c223761
KB		 8833 },
8834 {
8835 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
7eddabff 8836 PCI_VENDOR_ID_ADAPTEC2, 0x0802)
6c223761
KB		 8837 },
8838 {
8839 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
7eddabff 8840 PCI_VENDOR_ID_ADAPTEC2, 0x0803)
6c223761
KB		 8841 },
8842 {
8843 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
7eddabff 8844 PCI_VENDOR_ID_ADAPTEC2, 0x0804)
6c223761
KB		 8845 },
8846 {
8847 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
7eddabff 8848 PCI_VENDOR_ID_ADAPTEC2, 0x0805)
6c223761
KB		 8849 },
8850 {
8851 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
7eddabff 8852 PCI_VENDOR_ID_ADAPTEC2, 0x0806)
6c223761 8853 },
55790064
KB		 8854 {
8855 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
8856 PCI_VENDOR_ID_ADAPTEC2, 0x0807)
8857 },
63a7956a
GW		 8858 {
8859 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
8860 PCI_VENDOR_ID_ADAPTEC2, 0x0808)
8861 },
8862 {
8863 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
8864 PCI_VENDOR_ID_ADAPTEC2, 0x0809)
8865 },
3af06083
MR		 8866 {
8867 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
8868 PCI_VENDOR_ID_ADAPTEC2, 0x080a)
8869 },
6c223761
KB		 8870 {
8871 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
7eddabff 8872 PCI_VENDOR_ID_ADAPTEC2, 0x0900)
6c223761
KB		 8873 },
8874 {
8875 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
7eddabff 8876 PCI_VENDOR_ID_ADAPTEC2, 0x0901)
6c223761
KB		 8877 },
8878 {
8879 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
7eddabff 8880 PCI_VENDOR_ID_ADAPTEC2, 0x0902)
6c223761
KB		 8881 },
8882 {
8883 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
7eddabff 8884 PCI_VENDOR_ID_ADAPTEC2, 0x0903)
6c223761
KB		 8885 },
8886 {
8887 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
7eddabff 8888 PCI_VENDOR_ID_ADAPTEC2, 0x0904)
6c223761
KB		 8889 },
8890 {
8891 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
7eddabff 8892 PCI_VENDOR_ID_ADAPTEC2, 0x0905)
6c223761
KB		 8893 },
8894 {
8895 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
7eddabff 8896 PCI_VENDOR_ID_ADAPTEC2, 0x0906)
6c223761
KB		 8897 },
8898 {
8899 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
7eddabff 8900 PCI_VENDOR_ID_ADAPTEC2, 0x0907)
6c223761
KB		 8901 },
8902 {
8903 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
7eddabff 8904 PCI_VENDOR_ID_ADAPTEC2, 0x0908)
6c223761 8905 },
55790064
KB		 8906 {
8907 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
8908 PCI_VENDOR_ID_ADAPTEC2, 0x090a)
8909 },
6c223761
KB		 8910 {
8911 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
7eddabff 8912 PCI_VENDOR_ID_ADAPTEC2, 0x1200)
6c223761
KB		 8913 },
8914 {
8915 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
7eddabff 8916 PCI_VENDOR_ID_ADAPTEC2, 0x1201)
6c223761
KB		 8917 },
8918 {
8919 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
7eddabff 8920 PCI_VENDOR_ID_ADAPTEC2, 0x1202)
6c223761
KB		 8921 },
8922 {
8923 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
7eddabff 8924 PCI_VENDOR_ID_ADAPTEC2, 0x1280)
6c223761
KB		 8925 },
8926 {
8927 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
7eddabff 8928 PCI_VENDOR_ID_ADAPTEC2, 0x1281)
6c223761 8929 },
b0f9408b
KB		 8930 {
8931 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
8932 PCI_VENDOR_ID_ADAPTEC2, 0x1282)
8933 },
6c223761
KB		 8934 {
8935 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
7eddabff 8936 PCI_VENDOR_ID_ADAPTEC2, 0x1300)
6c223761
KB		 8937 },
8938 {
8939 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
7eddabff 8940 PCI_VENDOR_ID_ADAPTEC2, 0x1301)
6c223761 8941 },
bd809e8d
KB		 8942 {
8943 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
8944 PCI_VENDOR_ID_ADAPTEC2, 0x1302)
8945 },
8946 {
8947 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
8948 PCI_VENDOR_ID_ADAPTEC2, 0x1303)
8949 },
6c223761
KB		 8950 {
8951 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
7eddabff
KB		 8952 PCI_VENDOR_ID_ADAPTEC2, 0x1380)
8953 },
75fbeacc
KB		 8954 {
8955 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
8956 PCI_VENDOR_ID_ADAPTEC2, 0x1400)
8957 },
8958 {
8959 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
8960 PCI_VENDOR_ID_ADAPTEC2, 0x1402)
8961 },
8962 {
8963 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
8964 PCI_VENDOR_ID_ADAPTEC2, 0x1410)
8965 },
8966 {
8967 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
8968 PCI_VENDOR_ID_ADAPTEC2, 0x1411)
8969 },
8970 {
8971 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
8972 PCI_VENDOR_ID_ADAPTEC2, 0x1412)
8973 },
8974 {
8975 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
8976 PCI_VENDOR_ID_ADAPTEC2, 0x1420)
8977 },
8978 {
8979 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
8980 PCI_VENDOR_ID_ADAPTEC2, 0x1430)
8981 },
8982 {
8983 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
8984 PCI_VENDOR_ID_ADAPTEC2, 0x1440)
8985 },
8986 {
8987 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
8988 PCI_VENDOR_ID_ADAPTEC2, 0x1441)
8989 },
8990 {
8991 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
8992 PCI_VENDOR_ID_ADAPTEC2, 0x1450)
8993 },
8994 {
8995 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
8996 PCI_VENDOR_ID_ADAPTEC2, 0x1452)
8997 },
8998 {
8999 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
9000 PCI_VENDOR_ID_ADAPTEC2, 0x1460)
9001 },
9002 {
9003 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
9004 PCI_VENDOR_ID_ADAPTEC2, 0x1461)
9005 },
9006 {
9007 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
9008 PCI_VENDOR_ID_ADAPTEC2, 0x1462)
9009 },
9010 {
9011 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
9012 PCI_VENDOR_ID_ADAPTEC2, 0x1470)
9013 },
9014 {
9015 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
9016 PCI_VENDOR_ID_ADAPTEC2, 0x1471)
9017 },
9018 {
9019 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
9020 PCI_VENDOR_ID_ADAPTEC2, 0x1472)
9021 },
9022 {
9023 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
9024 PCI_VENDOR_ID_ADAPTEC2, 0x1480)
9025 },
9026 {
9027 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
9028 PCI_VENDOR_ID_ADAPTEC2, 0x1490)
9029 },
9030 {
9031 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
9032 PCI_VENDOR_ID_ADAPTEC2, 0x1491)
9033 },
9034 {
9035 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
9036 PCI_VENDOR_ID_ADAPTEC2, 0x14a0)
9037 },
9038 {
9039 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
9040 PCI_VENDOR_ID_ADAPTEC2, 0x14a1)
9041 },
9042 {
9043 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
9044 PCI_VENDOR_ID_ADAPTEC2, 0x14b0)
9045 },
9046 {
9047 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
9048 PCI_VENDOR_ID_ADAPTEC2, 0x14b1)
9049 },
9050 {
9051 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
9052 PCI_VENDOR_ID_ADAPTEC2, 0x14c0)
9053 },
9054 {
9055 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
9056 PCI_VENDOR_ID_ADAPTEC2, 0x14c1)
9057 },
9058 {
9059 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
9060 PCI_VENDOR_ID_ADAPTEC2, 0x14d0)
9061 },
9062 {
9063 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
9064 PCI_VENDOR_ID_ADAPTEC2, 0x14e0)
9065 },
9066 {
9067 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
9068 PCI_VENDOR_ID_ADAPTEC2, 0x14f0)
9069 },
9f8d05fa
KB		 9070 {
9071 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
9072 PCI_VENDOR_ID_ADVANTECH, 0x8312)
9073 },
55790064
KB		 9074 {
9075 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
9076 PCI_VENDOR_ID_DELL, 0x1fe0)
9077 },
7eddabff
KB		 9078 {
9079 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
9080 PCI_VENDOR_ID_HP, 0x0600)
9081 },
9082 {
9083 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
9084 PCI_VENDOR_ID_HP, 0x0601)
9085 },
9086 {
9087 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
9088 PCI_VENDOR_ID_HP, 0x0602)
9089 },
9090 {
9091 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
9092 PCI_VENDOR_ID_HP, 0x0603)
9093 },
9094 {
9095 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
55790064 9096 PCI_VENDOR_ID_HP, 0x0609)
7eddabff
KB		 9097 },
9098 {
9099 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
9100 PCI_VENDOR_ID_HP, 0x0650)
9101 },
9102 {
9103 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
9104 PCI_VENDOR_ID_HP, 0x0651)
9105 },
9106 {
9107 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
9108 PCI_VENDOR_ID_HP, 0x0652)
9109 },
9110 {
9111 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
9112 PCI_VENDOR_ID_HP, 0x0653)
9113 },
9114 {
9115 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
9116 PCI_VENDOR_ID_HP, 0x0654)
9117 },
9118 {
9119 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
9120 PCI_VENDOR_ID_HP, 0x0655)
9121 },
7eddabff
KB		 9122 {
9123 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
9124 PCI_VENDOR_ID_HP, 0x0700)
9125 },
9126 {
9127 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
9128 PCI_VENDOR_ID_HP, 0x0701)
6c223761
KB		 9129 },
9130 {
9131 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
9132 PCI_VENDOR_ID_HP, 0x1001)
9133 },
75fbeacc
KB		 9134 {
9135 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
9136 PCI_VENDOR_ID_HP, 0x1002)
9137 },
6c223761
KB		 9138 {
9139 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
9140 PCI_VENDOR_ID_HP, 0x1100)
9141 },
9142 {
9143 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
9144 PCI_VENDOR_ID_HP, 0x1101)
9145 },
75fbeacc
KB		 9146 {
9147 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
9148 0x1590, 0x0294)
9149 },
9150 {
9151 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
9152 0x1590, 0x02db)
9153 },
9154 {
9155 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
9156 0x1590, 0x02dc)
9157 },
9158 {
9159 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
9160 0x1590, 0x032e)
9161 },
8bdb3b9c
GW		 9162 {
9163 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
9164 0x1d8d, 0x0800)
9165 },
9166 {
9167 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
9168 0x1d8d, 0x0908)
9169 },
9170 {
9171 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
9172 0x1d8d, 0x0806)
9173 },
9174 {
9175 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
9176 0x1d8d, 0x0916)
9177 },
71ecc60d
GW		 9178 {
9179 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
9180 PCI_VENDOR_ID_GIGABYTE, 0x1000)
9181 },
6c223761
KB		 9182 {
9183 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
9184 PCI_ANY_ID, PCI_ANY_ID)
9185 },
9186 { 0 }
9187};
9188
9189MODULE_DEVICE_TABLE(pci, pqi_pci_id_table);
9190
9191static struct pci_driver pqi_pci_driver = {
9192 .name = DRIVER_NAME_SHORT,
9193 .id_table = pqi_pci_id_table,
9194 .probe = pqi_pci_probe,
9195 .remove = pqi_pci_remove,
9196 .shutdown = pqi_shutdown,
061ef06a
KB		 9197#if defined(CONFIG_PM)
9198 .suspend = pqi_suspend,
9199 .resume = pqi_resume,
9200#endif
6c223761
KB		 9201};
9202
9203static int __init pqi_init(void)
9204{
9205 int rc;
9206
9207 pr_info(DRIVER_NAME "\n");
9208
8b664fef 9209 pqi_sas_transport_template = sas_attach_transport(&pqi_sas_transport_functions);
6c223761
KB		 9210 if (!pqi_sas_transport_template)
9211 return -ENODEV;
9212
3c50976f
KB		 9213 pqi_process_module_params();
9214
6c223761
KB		 9215 rc = pci_register_driver(&pqi_pci_driver);
9216 if (rc)
9217 sas_release_transport(pqi_sas_transport_template);
9218
9219 return rc;
9220}
9221
9222static void __exit pqi_cleanup(void)
9223{
9224 pci_unregister_driver(&pqi_pci_driver);
9225 sas_release_transport(pqi_sas_transport_template);
9226}
9227
9228module_init(pqi_init);
9229module_exit(pqi_cleanup);
9230
9231static void __attribute__((unused)) verify_structures(void)
9232{
9233 BUILD_BUG_ON(offsetof(struct pqi_ctrl_registers,
9234 sis_host_to_ctrl_doorbell) != 0x20);
9235 BUILD_BUG_ON(offsetof(struct pqi_ctrl_registers,
9236 sis_interrupt_mask) != 0x34);
9237 BUILD_BUG_ON(offsetof(struct pqi_ctrl_registers,
9238 sis_ctrl_to_host_doorbell) != 0x9c);
9239 BUILD_BUG_ON(offsetof(struct pqi_ctrl_registers,
9240 sis_ctrl_to_host_doorbell_clear) != 0xa0);
ff6abb73
KB		 9241 BUILD_BUG_ON(offsetof(struct pqi_ctrl_registers,
9242 sis_driver_scratch) != 0xb0);
2708a256
KB		 9243 BUILD_BUG_ON(offsetof(struct pqi_ctrl_registers,
9244 sis_product_identifier) != 0xb4);
6c223761
KB		 9245 BUILD_BUG_ON(offsetof(struct pqi_ctrl_registers,
9246 sis_firmware_status) != 0xbc);
9247 BUILD_BUG_ON(offsetof(struct pqi_ctrl_registers,
9248 sis_mailbox) != 0x1000);
9249 BUILD_BUG_ON(offsetof(struct pqi_ctrl_registers,
9250 pqi_registers) != 0x4000);
9251
9252 BUILD_BUG_ON(offsetof(struct pqi_iu_header,
9253 iu_type) != 0x0);
9254 BUILD_BUG_ON(offsetof(struct pqi_iu_header,
9255 iu_length) != 0x2);
9256 BUILD_BUG_ON(offsetof(struct pqi_iu_header,
9257 response_queue_id) != 0x4);
9258 BUILD_BUG_ON(offsetof(struct pqi_iu_header,
ae0c189d 9259 driver_flags) != 0x6);
6c223761
KB		 9260 BUILD_BUG_ON(sizeof(struct pqi_iu_header) != 0x8);
9261
9262 BUILD_BUG_ON(offsetof(struct pqi_aio_error_info,
9263 status) != 0x0);
9264 BUILD_BUG_ON(offsetof(struct pqi_aio_error_info,
9265 service_response) != 0x1);
9266 BUILD_BUG_ON(offsetof(struct pqi_aio_error_info,
9267 data_present) != 0x2);
9268 BUILD_BUG_ON(offsetof(struct pqi_aio_error_info,
9269 reserved) != 0x3);
9270 BUILD_BUG_ON(offsetof(struct pqi_aio_error_info,
9271 residual_count) != 0x4);
9272 BUILD_BUG_ON(offsetof(struct pqi_aio_error_info,
9273 data_length) != 0x8);
9274 BUILD_BUG_ON(offsetof(struct pqi_aio_error_info,
9275 reserved1) != 0xa);
9276 BUILD_BUG_ON(offsetof(struct pqi_aio_error_info,
9277 data) != 0xc);
9278 BUILD_BUG_ON(sizeof(struct pqi_aio_error_info) != 0x10c);
9279
9280 BUILD_BUG_ON(offsetof(struct pqi_raid_error_info,
9281 data_in_result) != 0x0);
9282 BUILD_BUG_ON(offsetof(struct pqi_raid_error_info,
9283 data_out_result) != 0x1);
9284 BUILD_BUG_ON(offsetof(struct pqi_raid_error_info,
9285 reserved) != 0x2);
9286 BUILD_BUG_ON(offsetof(struct pqi_raid_error_info,
9287 status) != 0x5);
9288 BUILD_BUG_ON(offsetof(struct pqi_raid_error_info,
9289 status_qualifier) != 0x6);
9290 BUILD_BUG_ON(offsetof(struct pqi_raid_error_info,
9291 sense_data_length) != 0x8);
9292 BUILD_BUG_ON(offsetof(struct pqi_raid_error_info,
9293 response_data_length) != 0xa);
9294 BUILD_BUG_ON(offsetof(struct pqi_raid_error_info,
9295 data_in_transferred) != 0xc);
9296 BUILD_BUG_ON(offsetof(struct pqi_raid_error_info,
9297 data_out_transferred) != 0x10);
9298 BUILD_BUG_ON(offsetof(struct pqi_raid_error_info,
9299 data) != 0x14);
9300 BUILD_BUG_ON(sizeof(struct pqi_raid_error_info) != 0x114);
9301
9302 BUILD_BUG_ON(offsetof(struct pqi_device_registers,
9303 signature) != 0x0);
9304 BUILD_BUG_ON(offsetof(struct pqi_device_registers,
9305 function_and_status_code) != 0x8);
9306 BUILD_BUG_ON(offsetof(struct pqi_device_registers,
9307 max_admin_iq_elements) != 0x10);
9308 BUILD_BUG_ON(offsetof(struct pqi_device_registers,
9309 max_admin_oq_elements) != 0x11);
9310 BUILD_BUG_ON(offsetof(struct pqi_device_registers,
9311 admin_iq_element_length) != 0x12);
9312 BUILD_BUG_ON(offsetof(struct pqi_device_registers,
9313 admin_oq_element_length) != 0x13);
9314 BUILD_BUG_ON(offsetof(struct pqi_device_registers,
9315 max_reset_timeout) != 0x14);
9316 BUILD_BUG_ON(offsetof(struct pqi_device_registers,
9317 legacy_intx_status) != 0x18);
9318 BUILD_BUG_ON(offsetof(struct pqi_device_registers,
9319 legacy_intx_mask_set) != 0x1c);
9320 BUILD_BUG_ON(offsetof(struct pqi_device_registers,
9321 legacy_intx_mask_clear) != 0x20);
9322 BUILD_BUG_ON(offsetof(struct pqi_device_registers,
9323 device_status) != 0x40);
9324 BUILD_BUG_ON(offsetof(struct pqi_device_registers,
9325 admin_iq_pi_offset) != 0x48);
9326 BUILD_BUG_ON(offsetof(struct pqi_device_registers,
9327 admin_oq_ci_offset) != 0x50);
9328 BUILD_BUG_ON(offsetof(struct pqi_device_registers,
9329 admin_iq_element_array_addr) != 0x58);
9330 BUILD_BUG_ON(offsetof(struct pqi_device_registers,
9331 admin_oq_element_array_addr) != 0x60);
9332 BUILD_BUG_ON(offsetof(struct pqi_device_registers,
9333 admin_iq_ci_addr) != 0x68);
9334 BUILD_BUG_ON(offsetof(struct pqi_device_registers,
9335 admin_oq_pi_addr) != 0x70);
9336 BUILD_BUG_ON(offsetof(struct pqi_device_registers,
9337 admin_iq_num_elements) != 0x78);
9338 BUILD_BUG_ON(offsetof(struct pqi_device_registers,
9339 admin_oq_num_elements) != 0x79);
9340 BUILD_BUG_ON(offsetof(struct pqi_device_registers,
9341 admin_queue_int_msg_num) != 0x7a);
9342 BUILD_BUG_ON(offsetof(struct pqi_device_registers,
9343 device_error) != 0x80);
9344 BUILD_BUG_ON(offsetof(struct pqi_device_registers,
9345 error_details) != 0x88);
9346 BUILD_BUG_ON(offsetof(struct pqi_device_registers,
9347 device_reset) != 0x90);
9348 BUILD_BUG_ON(offsetof(struct pqi_device_registers,
9349 power_action) != 0x94);
9350 BUILD_BUG_ON(sizeof(struct pqi_device_registers) != 0x100);
9351
9352 BUILD_BUG_ON(offsetof(struct pqi_general_admin_request,
9353 header.iu_type) != 0);
9354 BUILD_BUG_ON(offsetof(struct pqi_general_admin_request,
9355 header.iu_length) != 2);
9356 BUILD_BUG_ON(offsetof(struct pqi_general_admin_request,
ae0c189d 9357 header.driver_flags) != 6);
6c223761
KB		 9358 BUILD_BUG_ON(offsetof(struct pqi_general_admin_request,
9359 request_id) != 8);
9360 BUILD_BUG_ON(offsetof(struct pqi_general_admin_request,
9361 function_code) != 10);
9362 BUILD_BUG_ON(offsetof(struct pqi_general_admin_request,
9363 data.report_device_capability.buffer_length) != 44);
9364 BUILD_BUG_ON(offsetof(struct pqi_general_admin_request,
9365 data.report_device_capability.sg_descriptor) != 48);
9366 BUILD_BUG_ON(offsetof(struct pqi_general_admin_request,
9367 data.create_operational_iq.queue_id) != 12);
9368 BUILD_BUG_ON(offsetof(struct pqi_general_admin_request,
9369 data.create_operational_iq.element_array_addr) != 16);
9370 BUILD_BUG_ON(offsetof(struct pqi_general_admin_request,
9371 data.create_operational_iq.ci_addr) != 24);
9372 BUILD_BUG_ON(offsetof(struct pqi_general_admin_request,
9373 data.create_operational_iq.num_elements) != 32);
9374 BUILD_BUG_ON(offsetof(struct pqi_general_admin_request,
9375 data.create_operational_iq.element_length) != 34);
9376 BUILD_BUG_ON(offsetof(struct pqi_general_admin_request,
9377 data.create_operational_iq.queue_protocol) != 36);
9378 BUILD_BUG_ON(offsetof(struct pqi_general_admin_request,
9379 data.create_operational_oq.queue_id) != 12);
9380 BUILD_BUG_ON(offsetof(struct pqi_general_admin_request,
9381 data.create_operational_oq.element_array_addr) != 16);
9382 BUILD_BUG_ON(offsetof(struct pqi_general_admin_request,
9383 data.create_operational_oq.pi_addr) != 24);
9384 BUILD_BUG_ON(offsetof(struct pqi_general_admin_request,
9385 data.create_operational_oq.num_elements) != 32);
9386 BUILD_BUG_ON(offsetof(struct pqi_general_admin_request,
9387 data.create_operational_oq.element_length) != 34);
9388 BUILD_BUG_ON(offsetof(struct pqi_general_admin_request,
9389 data.create_operational_oq.queue_protocol) != 36);
9390 BUILD_BUG_ON(offsetof(struct pqi_general_admin_request,
9391 data.create_operational_oq.int_msg_num) != 40);
9392 BUILD_BUG_ON(offsetof(struct pqi_general_admin_request,
9393 data.create_operational_oq.coalescing_count) != 42);
9394 BUILD_BUG_ON(offsetof(struct pqi_general_admin_request,
9395 data.create_operational_oq.min_coalescing_time) != 44);
9396 BUILD_BUG_ON(offsetof(struct pqi_general_admin_request,
9397 data.create_operational_oq.max_coalescing_time) != 48);
9398 BUILD_BUG_ON(offsetof(struct pqi_general_admin_request,
9399 data.delete_operational_queue.queue_id) != 12);
9400 BUILD_BUG_ON(sizeof(struct pqi_general_admin_request) != 64);
c593642c 9401 BUILD_BUG_ON(sizeof_field(struct pqi_general_admin_request,
6c223761 9402 data.create_operational_iq) != 64 - 11);
c593642c 9403 BUILD_BUG_ON(sizeof_field(struct pqi_general_admin_request,
6c223761 9404 data.create_operational_oq) != 64 - 11);
c593642c 9405 BUILD_BUG_ON(sizeof_field(struct pqi_general_admin_request,
6c223761
KB		 9406 data.delete_operational_queue) != 64 - 11);
9407
9408 BUILD_BUG_ON(offsetof(struct pqi_general_admin_response,
9409 header.iu_type) != 0);
9410 BUILD_BUG_ON(offsetof(struct pqi_general_admin_response,
9411 header.iu_length) != 2);
9412 BUILD_BUG_ON(offsetof(struct pqi_general_admin_response,
ae0c189d 9413 header.driver_flags) != 6);
6c223761
KB		 9414 BUILD_BUG_ON(offsetof(struct pqi_general_admin_response,
9415 request_id) != 8);
9416 BUILD_BUG_ON(offsetof(struct pqi_general_admin_response,
9417 function_code) != 10);
9418 BUILD_BUG_ON(offsetof(struct pqi_general_admin_response,
9419 status) != 11);
9420 BUILD_BUG_ON(offsetof(struct pqi_general_admin_response,
9421 data.create_operational_iq.status_descriptor) != 12);
9422 BUILD_BUG_ON(offsetof(struct pqi_general_admin_response,
9423 data.create_operational_iq.iq_pi_offset) != 16);
9424 BUILD_BUG_ON(offsetof(struct pqi_general_admin_response,
9425 data.create_operational_oq.status_descriptor) != 12);
9426 BUILD_BUG_ON(offsetof(struct pqi_general_admin_response,
9427 data.create_operational_oq.oq_ci_offset) != 16);
9428 BUILD_BUG_ON(sizeof(struct pqi_general_admin_response) != 64);
9429
9430 BUILD_BUG_ON(offsetof(struct pqi_raid_path_request,
9431 header.iu_type) != 0);
9432 BUILD_BUG_ON(offsetof(struct pqi_raid_path_request,
9433 header.iu_length) != 2);
9434 BUILD_BUG_ON(offsetof(struct pqi_raid_path_request,
9435 header.response_queue_id) != 4);
9436 BUILD_BUG_ON(offsetof(struct pqi_raid_path_request,
ae0c189d 9437 header.driver_flags) != 6);
6c223761
KB		 9438 BUILD_BUG_ON(offsetof(struct pqi_raid_path_request,
9439 request_id) != 8);
9440 BUILD_BUG_ON(offsetof(struct pqi_raid_path_request,
9441 nexus_id) != 10);
9442 BUILD_BUG_ON(offsetof(struct pqi_raid_path_request,
9443 buffer_length) != 12);
9444 BUILD_BUG_ON(offsetof(struct pqi_raid_path_request,
9445 lun_number) != 16);
9446 BUILD_BUG_ON(offsetof(struct pqi_raid_path_request,
9447 protocol_specific) != 24);
9448 BUILD_BUG_ON(offsetof(struct pqi_raid_path_request,
9449 error_index) != 27);
9450 BUILD_BUG_ON(offsetof(struct pqi_raid_path_request,
9451 cdb) != 32);
21432010 9452 BUILD_BUG_ON(offsetof(struct pqi_raid_path_request,
9453 timeout) != 60);
6c223761
KB		 9454 BUILD_BUG_ON(offsetof(struct pqi_raid_path_request,
9455 sg_descriptors) != 64);
9456 BUILD_BUG_ON(sizeof(struct pqi_raid_path_request) !=
9457 PQI_OPERATIONAL_IQ_ELEMENT_LENGTH);
9458
9459 BUILD_BUG_ON(offsetof(struct pqi_aio_path_request,
9460 header.iu_type) != 0);
9461 BUILD_BUG_ON(offsetof(struct pqi_aio_path_request,
9462 header.iu_length) != 2);
9463 BUILD_BUG_ON(offsetof(struct pqi_aio_path_request,
9464 header.response_queue_id) != 4);
9465 BUILD_BUG_ON(offsetof(struct pqi_aio_path_request,
ae0c189d 9466 header.driver_flags) != 6);
6c223761
KB		 9467 BUILD_BUG_ON(offsetof(struct pqi_aio_path_request,
9468 request_id) != 8);
9469 BUILD_BUG_ON(offsetof(struct pqi_aio_path_request,
9470 nexus_id) != 12);
9471 BUILD_BUG_ON(offsetof(struct pqi_aio_path_request,
9472 buffer_length) != 16);
9473 BUILD_BUG_ON(offsetof(struct pqi_aio_path_request,
9474 data_encryption_key_index) != 22);
9475 BUILD_BUG_ON(offsetof(struct pqi_aio_path_request,
9476 encrypt_tweak_lower) != 24);
9477 BUILD_BUG_ON(offsetof(struct pqi_aio_path_request,
9478 encrypt_tweak_upper) != 28);
9479 BUILD_BUG_ON(offsetof(struct pqi_aio_path_request,
9480 cdb) != 32);
9481 BUILD_BUG_ON(offsetof(struct pqi_aio_path_request,
9482 error_index) != 48);
9483 BUILD_BUG_ON(offsetof(struct pqi_aio_path_request,
9484 num_sg_descriptors) != 50);
9485 BUILD_BUG_ON(offsetof(struct pqi_aio_path_request,
9486 cdb_length) != 51);
9487 BUILD_BUG_ON(offsetof(struct pqi_aio_path_request,
9488 lun_number) != 52);
9489 BUILD_BUG_ON(offsetof(struct pqi_aio_path_request,
9490 sg_descriptors) != 64);
9491 BUILD_BUG_ON(sizeof(struct pqi_aio_path_request) !=
9492 PQI_OPERATIONAL_IQ_ELEMENT_LENGTH);
9493
9494 BUILD_BUG_ON(offsetof(struct pqi_io_response,
9495 header.iu_type) != 0);
9496 BUILD_BUG_ON(offsetof(struct pqi_io_response,
9497 header.iu_length) != 2);
9498 BUILD_BUG_ON(offsetof(struct pqi_io_response,
9499 request_id) != 8);
9500 BUILD_BUG_ON(offsetof(struct pqi_io_response,
9501 error_index) != 10);
9502
9503 BUILD_BUG_ON(offsetof(struct pqi_general_management_request,
9504 header.iu_type) != 0);
9505 BUILD_BUG_ON(offsetof(struct pqi_general_management_request,
9506 header.iu_length) != 2);
9507 BUILD_BUG_ON(offsetof(struct pqi_general_management_request,
9508 header.response_queue_id) != 4);
9509 BUILD_BUG_ON(offsetof(struct pqi_general_management_request,
9510 request_id) != 8);
9511 BUILD_BUG_ON(offsetof(struct pqi_general_management_request,
9512 data.report_event_configuration.buffer_length) != 12);
9513 BUILD_BUG_ON(offsetof(struct pqi_general_management_request,
9514 data.report_event_configuration.sg_descriptors) != 16);
9515 BUILD_BUG_ON(offsetof(struct pqi_general_management_request,
9516 data.set_event_configuration.global_event_oq_id) != 10);
9517 BUILD_BUG_ON(offsetof(struct pqi_general_management_request,
9518 data.set_event_configuration.buffer_length) != 12);
9519 BUILD_BUG_ON(offsetof(struct pqi_general_management_request,
9520 data.set_event_configuration.sg_descriptors) != 16);
9521
9522 BUILD_BUG_ON(offsetof(struct pqi_iu_layer_descriptor,
9523 max_inbound_iu_length) != 6);
9524 BUILD_BUG_ON(offsetof(struct pqi_iu_layer_descriptor,
9525 max_outbound_iu_length) != 14);
9526 BUILD_BUG_ON(sizeof(struct pqi_iu_layer_descriptor) != 16);
9527
9528 BUILD_BUG_ON(offsetof(struct pqi_device_capability,
9529 data_length) != 0);
9530 BUILD_BUG_ON(offsetof(struct pqi_device_capability,
9531 iq_arbitration_priority_support_bitmask) != 8);
9532 BUILD_BUG_ON(offsetof(struct pqi_device_capability,
9533 maximum_aw_a) != 9);
9534 BUILD_BUG_ON(offsetof(struct pqi_device_capability,
9535 maximum_aw_b) != 10);
9536 BUILD_BUG_ON(offsetof(struct pqi_device_capability,
9537 maximum_aw_c) != 11);
9538 BUILD_BUG_ON(offsetof(struct pqi_device_capability,
9539 max_inbound_queues) != 16);
9540 BUILD_BUG_ON(offsetof(struct pqi_device_capability,
9541 max_elements_per_iq) != 18);
9542 BUILD_BUG_ON(offsetof(struct pqi_device_capability,
9543 max_iq_element_length) != 24);
9544 BUILD_BUG_ON(offsetof(struct pqi_device_capability,
9545 min_iq_element_length) != 26);
9546 BUILD_BUG_ON(offsetof(struct pqi_device_capability,
9547 max_outbound_queues) != 30);
9548 BUILD_BUG_ON(offsetof(struct pqi_device_capability,
9549 max_elements_per_oq) != 32);
9550 BUILD_BUG_ON(offsetof(struct pqi_device_capability,
9551 intr_coalescing_time_granularity) != 34);
9552 BUILD_BUG_ON(offsetof(struct pqi_device_capability,
9553 max_oq_element_length) != 36);
9554 BUILD_BUG_ON(offsetof(struct pqi_device_capability,
9555 min_oq_element_length) != 38);
9556 BUILD_BUG_ON(offsetof(struct pqi_device_capability,
9557 iu_layer_descriptors) != 64);
9558 BUILD_BUG_ON(sizeof(struct pqi_device_capability) != 576);
9559
9560 BUILD_BUG_ON(offsetof(struct pqi_event_descriptor,
9561 event_type) != 0);
9562 BUILD_BUG_ON(offsetof(struct pqi_event_descriptor,
9563 oq_id) != 2);
9564 BUILD_BUG_ON(sizeof(struct pqi_event_descriptor) != 4);
9565
9566 BUILD_BUG_ON(offsetof(struct pqi_event_config,
9567 num_event_descriptors) != 2);
9568 BUILD_BUG_ON(offsetof(struct pqi_event_config,
9569 descriptors) != 4);
9570
061ef06a
KB		 9571 BUILD_BUG_ON(PQI_NUM_SUPPORTED_EVENTS !=
9572 ARRAY_SIZE(pqi_supported_event_types));
9573
6c223761
KB		 9574 BUILD_BUG_ON(offsetof(struct pqi_event_response,
9575 header.iu_type) != 0);
9576 BUILD_BUG_ON(offsetof(struct pqi_event_response,
9577 header.iu_length) != 2);
9578 BUILD_BUG_ON(offsetof(struct pqi_event_response,
9579 event_type) != 8);
9580 BUILD_BUG_ON(offsetof(struct pqi_event_response,
9581 event_id) != 10);
9582 BUILD_BUG_ON(offsetof(struct pqi_event_response,
9583 additional_event_id) != 12);
9584 BUILD_BUG_ON(offsetof(struct pqi_event_response,
9585 data) != 16);
9586 BUILD_BUG_ON(sizeof(struct pqi_event_response) != 32);
9587
9588 BUILD_BUG_ON(offsetof(struct pqi_event_acknowledge_request,
9589 header.iu_type) != 0);
9590 BUILD_BUG_ON(offsetof(struct pqi_event_acknowledge_request,
9591 header.iu_length) != 2);
9592 BUILD_BUG_ON(offsetof(struct pqi_event_acknowledge_request,
9593 event_type) != 8);
9594 BUILD_BUG_ON(offsetof(struct pqi_event_acknowledge_request,
9595 event_id) != 10);
9596 BUILD_BUG_ON(offsetof(struct pqi_event_acknowledge_request,
9597 additional_event_id) != 12);
9598 BUILD_BUG_ON(sizeof(struct pqi_event_acknowledge_request) != 16);
9599
9600 BUILD_BUG_ON(offsetof(struct pqi_task_management_request,
9601 header.iu_type) != 0);
9602 BUILD_BUG_ON(offsetof(struct pqi_task_management_request,
9603 header.iu_length) != 2);
9604 BUILD_BUG_ON(offsetof(struct pqi_task_management_request,
9605 request_id) != 8);
9606 BUILD_BUG_ON(offsetof(struct pqi_task_management_request,
9607 nexus_id) != 10);
9608 BUILD_BUG_ON(offsetof(struct pqi_task_management_request,
c2922f17
MB		 9609 timeout) != 14);
9610 BUILD_BUG_ON(offsetof(struct pqi_task_management_request,
6c223761
KB		 9611 lun_number) != 16);
9612 BUILD_BUG_ON(offsetof(struct pqi_task_management_request,
9613 protocol_specific) != 24);
9614 BUILD_BUG_ON(offsetof(struct pqi_task_management_request,
9615 outbound_queue_id_to_manage) != 26);
9616 BUILD_BUG_ON(offsetof(struct pqi_task_management_request,
9617 request_id_to_manage) != 28);
9618 BUILD_BUG_ON(offsetof(struct pqi_task_management_request,
9619 task_management_function) != 30);
9620 BUILD_BUG_ON(sizeof(struct pqi_task_management_request) != 32);
9621
9622 BUILD_BUG_ON(offsetof(struct pqi_task_management_response,
9623 header.iu_type) != 0);
9624 BUILD_BUG_ON(offsetof(struct pqi_task_management_response,
9625 header.iu_length) != 2);
9626 BUILD_BUG_ON(offsetof(struct pqi_task_management_response,
9627 request_id) != 8);
9628 BUILD_BUG_ON(offsetof(struct pqi_task_management_response,
9629 nexus_id) != 10);
9630 BUILD_BUG_ON(offsetof(struct pqi_task_management_response,
9631 additional_response_info) != 12);
9632 BUILD_BUG_ON(offsetof(struct pqi_task_management_response,
9633 response_code) != 15);
9634 BUILD_BUG_ON(sizeof(struct pqi_task_management_response) != 16);
9635
9636 BUILD_BUG_ON(offsetof(struct bmic_identify_controller,
9637 configured_logical_drive_count) != 0);
9638 BUILD_BUG_ON(offsetof(struct bmic_identify_controller,
9639 configuration_signature) != 1);
9640 BUILD_BUG_ON(offsetof(struct bmic_identify_controller,
598bef8d 9641 firmware_version_short) != 5);
6c223761
KB		 9642 BUILD_BUG_ON(offsetof(struct bmic_identify_controller,
9643 extended_logical_unit_count) != 154);
9644 BUILD_BUG_ON(offsetof(struct bmic_identify_controller,
9645 firmware_build_number) != 190);
598bef8d
KB		 9646 BUILD_BUG_ON(offsetof(struct bmic_identify_controller,
9647 vendor_id) != 200);
9648 BUILD_BUG_ON(offsetof(struct bmic_identify_controller,
9649 product_id) != 208);
9650 BUILD_BUG_ON(offsetof(struct bmic_identify_controller,
9651 extra_controller_flags) != 286);
6c223761
KB		 9652 BUILD_BUG_ON(offsetof(struct bmic_identify_controller,
9653 controller_mode) != 292);
598bef8d
KB		 9654 BUILD_BUG_ON(offsetof(struct bmic_identify_controller,
9655 spare_part_number) != 293);
9656 BUILD_BUG_ON(offsetof(struct bmic_identify_controller,
9657 firmware_version_long) != 325);
6c223761 9658
1be42f46
KB		 9659 BUILD_BUG_ON(offsetof(struct bmic_identify_physical_device,
9660 phys_bay_in_box) != 115);
9661 BUILD_BUG_ON(offsetof(struct bmic_identify_physical_device,
9662 device_type) != 120);
9663 BUILD_BUG_ON(offsetof(struct bmic_identify_physical_device,
9664 redundant_path_present_map) != 1736);
9665 BUILD_BUG_ON(offsetof(struct bmic_identify_physical_device,
9666 active_path_number) != 1738);
9667 BUILD_BUG_ON(offsetof(struct bmic_identify_physical_device,
9668 alternate_paths_phys_connector) != 1739);
9669 BUILD_BUG_ON(offsetof(struct bmic_identify_physical_device,
9670 alternate_paths_phys_box_on_port) != 1755);
9671 BUILD_BUG_ON(offsetof(struct bmic_identify_physical_device,
9672 current_queue_depth_limit) != 1796);
9673 BUILD_BUG_ON(sizeof(struct bmic_identify_physical_device) != 2560);
9674
f6cc2a77
KB		 9675 BUILD_BUG_ON(sizeof(struct bmic_sense_feature_buffer_header) != 4);
9676 BUILD_BUG_ON(offsetof(struct bmic_sense_feature_buffer_header,
9677 page_code) != 0);
9678 BUILD_BUG_ON(offsetof(struct bmic_sense_feature_buffer_header,
9679 subpage_code) != 1);
9680 BUILD_BUG_ON(offsetof(struct bmic_sense_feature_buffer_header,
9681 buffer_length) != 2);
9682
9683 BUILD_BUG_ON(sizeof(struct bmic_sense_feature_page_header) != 4);
9684 BUILD_BUG_ON(offsetof(struct bmic_sense_feature_page_header,
9685 page_code) != 0);
9686 BUILD_BUG_ON(offsetof(struct bmic_sense_feature_page_header,
9687 subpage_code) != 1);
9688 BUILD_BUG_ON(offsetof(struct bmic_sense_feature_page_header,
9689 page_length) != 2);
9690
9691 BUILD_BUG_ON(sizeof(struct bmic_sense_feature_io_page_aio_subpage)
9692 != 18);
9693 BUILD_BUG_ON(offsetof(struct bmic_sense_feature_io_page_aio_subpage,
9694 header) != 0);
9695 BUILD_BUG_ON(offsetof(struct bmic_sense_feature_io_page_aio_subpage,
9696 firmware_read_support) != 4);
9697 BUILD_BUG_ON(offsetof(struct bmic_sense_feature_io_page_aio_subpage,
9698 driver_read_support) != 5);
9699 BUILD_BUG_ON(offsetof(struct bmic_sense_feature_io_page_aio_subpage,
9700 firmware_write_support) != 6);
9701 BUILD_BUG_ON(offsetof(struct bmic_sense_feature_io_page_aio_subpage,
9702 driver_write_support) != 7);
9703 BUILD_BUG_ON(offsetof(struct bmic_sense_feature_io_page_aio_subpage,
9704 max_transfer_encrypted_sas_sata) != 8);
9705 BUILD_BUG_ON(offsetof(struct bmic_sense_feature_io_page_aio_subpage,
9706 max_transfer_encrypted_nvme) != 10);
9707 BUILD_BUG_ON(offsetof(struct bmic_sense_feature_io_page_aio_subpage,
9708 max_write_raid_5_6) != 12);
9709 BUILD_BUG_ON(offsetof(struct bmic_sense_feature_io_page_aio_subpage,
9710 max_write_raid_1_10_2drive) != 14);
9711 BUILD_BUG_ON(offsetof(struct bmic_sense_feature_io_page_aio_subpage,
9712 max_write_raid_1_10_3drive) != 16);
9713
6c223761
KB		 9714 BUILD_BUG_ON(PQI_ADMIN_IQ_NUM_ELEMENTS > 255);
9715 BUILD_BUG_ON(PQI_ADMIN_OQ_NUM_ELEMENTS > 255);
9716 BUILD_BUG_ON(PQI_ADMIN_IQ_ELEMENT_LENGTH %
9717 PQI_QUEUE_ELEMENT_LENGTH_ALIGNMENT != 0);
9718 BUILD_BUG_ON(PQI_ADMIN_OQ_ELEMENT_LENGTH %
9719 PQI_QUEUE_ELEMENT_LENGTH_ALIGNMENT != 0);
9720 BUILD_BUG_ON(PQI_OPERATIONAL_IQ_ELEMENT_LENGTH > 1048560);
9721 BUILD_BUG_ON(PQI_OPERATIONAL_IQ_ELEMENT_LENGTH %
9722 PQI_QUEUE_ELEMENT_LENGTH_ALIGNMENT != 0);
9723 BUILD_BUG_ON(PQI_OPERATIONAL_OQ_ELEMENT_LENGTH > 1048560);
9724 BUILD_BUG_ON(PQI_OPERATIONAL_OQ_ELEMENT_LENGTH %
9725 PQI_QUEUE_ELEMENT_LENGTH_ALIGNMENT != 0);
9726
9727 BUILD_BUG_ON(PQI_RESERVED_IO_SLOTS >= PQI_MAX_OUTSTANDING_REQUESTS);
d727a776
KB		 9728 BUILD_BUG_ON(PQI_RESERVED_IO_SLOTS >=
9729 PQI_MAX_OUTSTANDING_REQUESTS_KDUMP);
6c223761 9730}
Linux 6.x block layer and io_uring tree(s)