]> git.ipfire.org Git - thirdparty/kernel/linux.git/blame - drivers/scsi/smartpqi/smartpqi_init.c
projects / thirdparty / kernel / linux.git / blame
? search:
summary | shortlog | log | commit | commitdiff | tree
blob | blame (incremental) | history | HEAD
Merge tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi
[thirdparty/kernel/linux.git] / drivers / scsi / smartpqi / smartpqi_init.c
CommitLineData
2cc37b15 1// SPDX-License-Identifier: GPL-2.0
6c223761 2/*
889653ec 3 * driver for Microchip PQI-based storage controllers
49fd52d4 4 * Copyright (c) 2019-2023 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
8c995510 36#define DRIVER_VERSION "2.1.26-030"
d56030f8
DB		 37#define DRIVER_MAJOR 2
38#define DRIVER_MINOR 1
8c995510
DB		 39#define DRIVER_RELEASE 26
40#define DRIVER_REVISION 30
6c223761 41
6aa26b5a 42#define DRIVER_NAME "Microchip SmartPQI Driver (v" \
2d154f5f 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
153c45dd
KB		 51#define PQI_NO_COMPLETION ((void *)-1)
52
6aa26b5a
DB		 53MODULE_AUTHOR("Microchip");
54MODULE_DESCRIPTION("Driver for Microchip Smart Family Controller version "
6c223761 55 DRIVER_VERSION);
6c223761
KB		 56MODULE_VERSION(DRIVER_VERSION);
57MODULE_LICENSE("GPL");
58
c1ea387d
BVA		 59struct pqi_cmd_priv {
60 int this_residual;
61};
62
63static struct pqi_cmd_priv *pqi_cmd_priv(struct scsi_cmnd *cmd)
64{
65 return scsi_cmd_priv(cmd);
66}
67
5e693586 68static void pqi_verify_structures(void);
5d1f03e6
MB		 69static void pqi_take_ctrl_offline(struct pqi_ctrl_info *ctrl_info,
70 enum pqi_ctrl_shutdown_reason ctrl_shutdown_reason);
5f310425 71static void pqi_ctrl_offline_worker(struct work_struct *work);
6c223761
KB		 72static int pqi_scan_scsi_devices(struct pqi_ctrl_info *ctrl_info);
73static void pqi_scan_start(struct Scsi_Host *shost);
74static void pqi_start_io(struct pqi_ctrl_info *ctrl_info,
75 struct pqi_queue_group *queue_group, enum pqi_io_path path,
76 struct pqi_io_request *io_request);
77static int pqi_submit_raid_request_synchronous(struct pqi_ctrl_info *ctrl_info,
78 struct pqi_iu_header *request, unsigned int flags,
ae0c189d 79 struct pqi_raid_error_info *error_info);
6c223761
KB		 80static int pqi_aio_submit_io(struct pqi_ctrl_info *ctrl_info,
81 struct scsi_cmnd *scmd, u32 aio_handle, u8 *cdb,
82 unsigned int cdb_length, struct pqi_queue_group *queue_group,
2a47834d 83 struct pqi_encryption_info *encryption_info, bool raid_bypass, bool io_high_prio);
7a012c23
DB		 84static int pqi_aio_submit_r1_write_io(struct pqi_ctrl_info *ctrl_info,
85 struct scsi_cmnd *scmd, struct pqi_queue_group *queue_group,
86 struct pqi_encryption_info *encryption_info, struct pqi_scsi_dev *device,
87 struct pqi_scsi_dev_raid_map_data *rmd);
6702d2c4
DB		 88static int pqi_aio_submit_r56_write_io(struct pqi_ctrl_info *ctrl_info,
89 struct scsi_cmnd *scmd, struct pqi_queue_group *queue_group,
90 struct pqi_encryption_info *encryption_info, struct pqi_scsi_dev *device,
91 struct pqi_scsi_dev_raid_map_data *rmd);
4fd22c13
MR		 92static void pqi_ofa_ctrl_quiesce(struct pqi_ctrl_info *ctrl_info);
93static void pqi_ofa_ctrl_unquiesce(struct pqi_ctrl_info *ctrl_info);
2790cd4d
KB		 94static int pqi_ofa_ctrl_restart(struct pqi_ctrl_info *ctrl_info, unsigned int delay_secs);
95static void pqi_ofa_setup_host_buffer(struct pqi_ctrl_info *ctrl_info);
4fd22c13
MR		 96static void pqi_ofa_free_host_buffer(struct pqi_ctrl_info *ctrl_info);
97static int pqi_ofa_host_memory_update(struct pqi_ctrl_info *ctrl_info);
1e46731e 98static int pqi_device_wait_for_pending_io(struct pqi_ctrl_info *ctrl_info,
904f2bfd 99 struct pqi_scsi_dev *device, u8 lun, unsigned long timeout_msecs);
331f7e99 100static void pqi_fail_all_outstanding_requests(struct pqi_ctrl_info *ctrl_info);
153c45dd 101static void pqi_tmf_worker(struct work_struct *work);
6c223761
KB		 102
103/* for flags argument to pqi_submit_raid_request_synchronous() */
104#define PQI_SYNC_FLAGS_INTERRUPTABLE 0x1
105
106static struct scsi_transport_template *pqi_sas_transport_template;
107
108static atomic_t pqi_controller_count = ATOMIC_INIT(0);
109
3c50976f
KB		 110enum pqi_lockup_action {
111 NONE,
112 REBOOT,
113 PANIC
114};
115
116static enum pqi_lockup_action pqi_lockup_action = NONE;
117
118static struct {
119 enum pqi_lockup_action action;
120 char *name;
121} pqi_lockup_actions[] = {
122 {
123 .action = NONE,
124 .name = "none",
125 },
126 {
127 .action = REBOOT,
128 .name = "reboot",
129 },
130 {
131 .action = PANIC,
132 .name = "panic",
133 },
134};
135
6a50d6ad
KB		 136static unsigned int pqi_supported_event_types[] = {
137 PQI_EVENT_TYPE_HOTPLUG,
138 PQI_EVENT_TYPE_HARDWARE,
139 PQI_EVENT_TYPE_PHYSICAL_DEVICE,
140 PQI_EVENT_TYPE_LOGICAL_DEVICE,
4fd22c13 141 PQI_EVENT_TYPE_OFA,
6a50d6ad
KB		 142 PQI_EVENT_TYPE_AIO_STATE_CHANGE,
143 PQI_EVENT_TYPE_AIO_CONFIG_CHANGE,
144};
145
6c223761
KB		 146static int pqi_disable_device_id_wildcards;
147module_param_named(disable_device_id_wildcards,
cbe0c7b1 148 pqi_disable_device_id_wildcards, int, 0644);
6c223761
KB		 149MODULE_PARM_DESC(disable_device_id_wildcards,
150 "Disable device ID wildcards.");
151
5a259e32
KB		 152static int pqi_disable_heartbeat;
153module_param_named(disable_heartbeat,
154 pqi_disable_heartbeat, int, 0644);
155MODULE_PARM_DESC(disable_heartbeat,
156 "Disable heartbeat.");
157
158static int pqi_disable_ctrl_shutdown;
159module_param_named(disable_ctrl_shutdown,
160 pqi_disable_ctrl_shutdown, int, 0644);
161MODULE_PARM_DESC(disable_ctrl_shutdown,
162 "Disable controller shutdown when controller locked up.");
163
3c50976f
KB		 164static char *pqi_lockup_action_param;
165module_param_named(lockup_action,
166 pqi_lockup_action_param, charp, 0644);
167MODULE_PARM_DESC(lockup_action, "Action to take when controller locked up.\n"
168 "\t\tSupported: none, reboot, panic\n"
169 "\t\tDefault: none");
170
5e6a9760
GW		 171static int pqi_expose_ld_first;
172module_param_named(expose_ld_first,
173 pqi_expose_ld_first, int, 0644);
583891c9 174MODULE_PARM_DESC(expose_ld_first, "Expose logical drives before physical drives.");
5e6a9760 175
522bc026
DC		 176static int pqi_hide_vsep;
177module_param_named(hide_vsep,
178 pqi_hide_vsep, int, 0644);
583891c9 179MODULE_PARM_DESC(hide_vsep, "Hide the virtual SEP for direct attached drives.");
522bc026 180
cf15c3e7
MM		 181static int pqi_disable_managed_interrupts;
182module_param_named(disable_managed_interrupts,
183 pqi_disable_managed_interrupts, int, 0644);
184MODULE_PARM_DESC(disable_managed_interrupts,
185 "Disable the kernel automatically assigning SMP affinity to IRQs.");
186
6d567dfe
KB		 187static unsigned int pqi_ctrl_ready_timeout_secs;
188module_param_named(ctrl_ready_timeout,
189 pqi_ctrl_ready_timeout_secs, uint, 0644);
190MODULE_PARM_DESC(ctrl_ready_timeout,
191 "Timeout in seconds for driver to wait for controller ready.");
192
6c223761
KB		 193static char *raid_levels[] = {
194 "RAID-0",
195 "RAID-4",
196 "RAID-1(1+0)",
197 "RAID-5",
198 "RAID-5+1",
7a012c23
DB		 199 "RAID-6",
200 "RAID-1(Triple)",
6c223761
KB		 201};
202
203static char *pqi_raid_level_to_string(u8 raid_level)
204{
205 if (raid_level < ARRAY_SIZE(raid_levels))
206 return raid_levels[raid_level];
207
a9f93392 208 return "RAID UNKNOWN";
6c223761
KB		 209}
210
211#define SA_RAID_0 0
212#define SA_RAID_4 1
213#define SA_RAID_1 2 /* also used for RAID 10 */
214#define SA_RAID_5 3 /* also used for RAID 50 */
215#define SA_RAID_51 4
216#define SA_RAID_6 5 /* also used for RAID 60 */
7a012c23
DB		 217#define SA_RAID_TRIPLE 6 /* also used for RAID 1+0 Triple */
218#define SA_RAID_MAX SA_RAID_TRIPLE
6c223761
KB		 219#define SA_RAID_UNKNOWN 0xff
220
221static inline void pqi_scsi_done(struct scsi_cmnd *scmd)
222{
7561a7e4 223 pqi_prep_for_scsi_done(scmd);
0ca19080 224 scsi_done(scmd);
6c223761
KB		 225}
226
b6e2ef67 227static inline void pqi_disable_write_same(struct scsi_device *sdev)
6c223761 228{
b6e2ef67 229 sdev->no_write_same = 1;
6c223761
KB		 230}
231
6c223761 232static inline bool pqi_scsi3addr_equal(u8 *scsi3addr1, u8 *scsi3addr2)
6c223761 233{
6c223761 234 return memcmp(scsi3addr1, scsi3addr2, 8) == 0;
6c223761
KB		 235}
236
237static inline bool pqi_is_logical_device(struct pqi_scsi_dev *device)
238{
239 return !device->is_physical_device;
240}
241
bd10cf0b
KB		 242static inline bool pqi_is_external_raid_addr(u8 *scsi3addr)
243{
244 return scsi3addr[2] != 0;
245}
246
694c5d5b
KB		 247static inline bool pqi_ctrl_offline(struct pqi_ctrl_info *ctrl_info)
248{
249 return !ctrl_info->controller_online;
250}
251
6c223761
KB		 252static inline void pqi_check_ctrl_health(struct pqi_ctrl_info *ctrl_info)
253{
254 if (ctrl_info->controller_online)
255 if (!sis_is_firmware_running(ctrl_info))
5d1f03e6 256 pqi_take_ctrl_offline(ctrl_info, PQI_FIRMWARE_KERNEL_NOT_UP);
6c223761
KB		 257}
258
259static inline bool pqi_is_hba_lunid(u8 *scsi3addr)
260{
261 return pqi_scsi3addr_equal(scsi3addr, RAID_CTLR_LUNID);
262}
263
9ee5d6e9
MR		 264#define PQI_DRIVER_SCRATCH_PQI_MODE 0x1
265#define PQI_DRIVER_SCRATCH_FW_TRIAGE_SUPPORTED 0x2
266
583891c9 267static inline enum pqi_ctrl_mode pqi_get_ctrl_mode(struct pqi_ctrl_info *ctrl_info)
ff6abb73 268{
9ee5d6e9 269 return sis_read_driver_scratch(ctrl_info) & PQI_DRIVER_SCRATCH_PQI_MODE ? PQI_MODE : SIS_MODE;
ff6abb73
KB		 270}
271
272static inline void pqi_save_ctrl_mode(struct pqi_ctrl_info *ctrl_info,
273 enum pqi_ctrl_mode mode)
274{
9ee5d6e9
MR		 275 u32 driver_scratch;
276
277 driver_scratch = sis_read_driver_scratch(ctrl_info);
278
279 if (mode == PQI_MODE)
280 driver_scratch |= PQI_DRIVER_SCRATCH_PQI_MODE;
281 else
282 driver_scratch &= ~PQI_DRIVER_SCRATCH_PQI_MODE;
283
284 sis_write_driver_scratch(ctrl_info, driver_scratch);
285}
286
287static inline bool pqi_is_fw_triage_supported(struct pqi_ctrl_info *ctrl_info)
288{
289 return (sis_read_driver_scratch(ctrl_info) & PQI_DRIVER_SCRATCH_FW_TRIAGE_SUPPORTED) != 0;
290}
291
292static inline void pqi_save_fw_triage_setting(struct pqi_ctrl_info *ctrl_info, bool is_supported)
293{
294 u32 driver_scratch;
295
296 driver_scratch = sis_read_driver_scratch(ctrl_info);
297
298 if (is_supported)
299 driver_scratch |= PQI_DRIVER_SCRATCH_FW_TRIAGE_SUPPORTED;
300 else
301 driver_scratch &= ~PQI_DRIVER_SCRATCH_FW_TRIAGE_SUPPORTED;
302
303 sis_write_driver_scratch(ctrl_info, driver_scratch);
ff6abb73
KB		 304}
305
9fa82023
KB		 306static inline void pqi_ctrl_block_scan(struct pqi_ctrl_info *ctrl_info)
307{
308 ctrl_info->scan_blocked = true;
309 mutex_lock(&ctrl_info->scan_mutex);
310}
311
312static inline void pqi_ctrl_unblock_scan(struct pqi_ctrl_info *ctrl_info)
313{
314 ctrl_info->scan_blocked = false;
315 mutex_unlock(&ctrl_info->scan_mutex);
316}
317
318static inline bool pqi_ctrl_scan_blocked(struct pqi_ctrl_info *ctrl_info)
319{
320 return ctrl_info->scan_blocked;
321}
322
694c5d5b
KB		 323static inline void pqi_ctrl_block_device_reset(struct pqi_ctrl_info *ctrl_info)
324{
37f33181 325 mutex_lock(&ctrl_info->lun_reset_mutex);
694c5d5b
KB		 326}
327
37f33181 328static inline void pqi_ctrl_unblock_device_reset(struct pqi_ctrl_info *ctrl_info)
694c5d5b 329{
37f33181 330 mutex_unlock(&ctrl_info->lun_reset_mutex);
694c5d5b
KB		 331}
332
9fa82023
KB		 333static inline void pqi_scsi_block_requests(struct pqi_ctrl_info *ctrl_info)
334{
335 struct Scsi_Host *shost;
336 unsigned int num_loops;
337 int msecs_sleep;
338
339 shost = ctrl_info->scsi_host;
340
341 scsi_block_requests(shost);
342
343 num_loops = 0;
344 msecs_sleep = 20;
345 while (scsi_host_busy(shost)) {
346 num_loops++;
347 if (num_loops == 10)
348 msecs_sleep = 500;
349 msleep(msecs_sleep);
350 }
351}
352
353static inline void pqi_scsi_unblock_requests(struct pqi_ctrl_info *ctrl_info)
354{
355 scsi_unblock_requests(ctrl_info->scsi_host);
356}
357
358static inline void pqi_ctrl_busy(struct pqi_ctrl_info *ctrl_info)
359{
360 atomic_inc(&ctrl_info->num_busy_threads);
694c5d5b
KB		 361}
362
9fa82023 363static inline void pqi_ctrl_unbusy(struct pqi_ctrl_info *ctrl_info)
694c5d5b 364{
9fa82023 365 atomic_dec(&ctrl_info->num_busy_threads);
694c5d5b
KB		 366}
367
368static inline bool pqi_ctrl_blocked(struct pqi_ctrl_info *ctrl_info)
369{
370 return ctrl_info->block_requests;
371}
372
7561a7e4
KB		 373static inline void pqi_ctrl_block_requests(struct pqi_ctrl_info *ctrl_info)
374{
375 ctrl_info->block_requests = true;
7561a7e4
KB		 376}
377
378static inline void pqi_ctrl_unblock_requests(struct pqi_ctrl_info *ctrl_info)
379{
380 ctrl_info->block_requests = false;
381 wake_up_all(&ctrl_info->block_requests_wait);
7561a7e4
KB		 382}
383
ae0c189d 384static void pqi_wait_if_ctrl_blocked(struct pqi_ctrl_info *ctrl_info)
7561a7e4 385{
7561a7e4 386 if (!pqi_ctrl_blocked(ctrl_info))
ae0c189d 387 return;
7561a7e4
KB		 388
389 atomic_inc(&ctrl_info->num_blocked_threads);
ae0c189d
KB		 390 wait_event(ctrl_info->block_requests_wait,
391 !pqi_ctrl_blocked(ctrl_info));
7561a7e4 392 atomic_dec(&ctrl_info->num_blocked_threads);
7561a7e4
KB		 393}
394
18ff5f08
KB		 395#define PQI_QUIESCE_WARNING_TIMEOUT_SECS 10
396
7561a7e4
KB		 397static inline void pqi_ctrl_wait_until_quiesced(struct pqi_ctrl_info *ctrl_info)
398{
18ff5f08
KB		 399 unsigned long start_jiffies;
400 unsigned long warning_timeout;
401 bool displayed_warning;
402
403 displayed_warning = false;
404 start_jiffies = jiffies;
42dc0426 405 warning_timeout = (PQI_QUIESCE_WARNING_TIMEOUT_SECS * HZ) + start_jiffies;
18ff5f08 406
7561a7e4 407 while (atomic_read(&ctrl_info->num_busy_threads) >
18ff5f08
KB		 408 atomic_read(&ctrl_info->num_blocked_threads)) {
409 if (time_after(jiffies, warning_timeout)) {
410 dev_warn(&ctrl_info->pci_dev->dev,
411 "waiting %u seconds for driver activity to quiesce\n",
412 jiffies_to_msecs(jiffies - start_jiffies) / 1000);
413 displayed_warning = true;
42dc0426 414 warning_timeout = (PQI_QUIESCE_WARNING_TIMEOUT_SECS * HZ) + jiffies;
18ff5f08 415 }
7561a7e4 416 usleep_range(1000, 2000);
18ff5f08
KB		 417 }
418
419 if (displayed_warning)
420 dev_warn(&ctrl_info->pci_dev->dev,
421 "driver activity quiesced after waiting for %u seconds\n",
422 jiffies_to_msecs(jiffies - start_jiffies) / 1000);
7561a7e4
KB		 423}
424
03b288cf
KB		 425static inline bool pqi_device_offline(struct pqi_scsi_dev *device)
426{
427 return device->device_offline;
428}
429
2790cd4d 430static inline void pqi_ctrl_ofa_start(struct pqi_ctrl_info *ctrl_info)
7561a7e4 431{
2790cd4d 432 mutex_lock(&ctrl_info->ofa_mutex);
7561a7e4 433}
6c223761 434
2790cd4d 435static inline void pqi_ctrl_ofa_done(struct pqi_ctrl_info *ctrl_info)
4fd22c13 436{
2790cd4d 437 mutex_unlock(&ctrl_info->ofa_mutex);
4fd22c13
MR		 438}
439
2790cd4d 440static inline void pqi_wait_until_ofa_finished(struct pqi_ctrl_info *ctrl_info)
4fd22c13 441{
2790cd4d
KB		 442 mutex_lock(&ctrl_info->ofa_mutex);
443 mutex_unlock(&ctrl_info->ofa_mutex);
4fd22c13
MR		 444}
445
2790cd4d 446static inline bool pqi_ofa_in_progress(struct pqi_ctrl_info *ctrl_info)
4fd22c13 447{
2790cd4d 448 return mutex_is_locked(&ctrl_info->ofa_mutex);
4fd22c13
MR		 449}
450
1e46731e
MR		 451static inline void pqi_device_remove_start(struct pqi_scsi_dev *device)
452{
453 device->in_remove = true;
454}
455
1bdf6e93 456static inline bool pqi_device_in_remove(struct pqi_scsi_dev *device)
1e46731e 457{
1bdf6e93 458 return device->in_remove;
1e46731e
MR		 459}
460
153c45dd
KB		 461static inline void pqi_device_reset_start(struct pqi_scsi_dev *device, u8 lun)
462{
463 device->in_reset[lun] = true;
464}
465
466static inline void pqi_device_reset_done(struct pqi_scsi_dev *device, u8 lun)
467{
468 device->in_reset[lun] = false;
469}
470
471static inline bool pqi_device_in_reset(struct pqi_scsi_dev *device, u8 lun)
472{
473 return device->in_reset[lun];
474}
475
2790cd4d 476static inline int pqi_event_type_to_event_index(unsigned int event_type)
0530736e 477{
2790cd4d
KB		 478 int index;
479
480 for (index = 0; index < ARRAY_SIZE(pqi_supported_event_types); index++)
481 if (event_type == pqi_supported_event_types[index])
482 return index;
483
484 return -1;
0530736e
KB		 485}
486
2790cd4d 487static inline bool pqi_is_supported_event(unsigned int event_type)
0530736e 488{
2790cd4d 489 return pqi_event_type_to_event_index(event_type) != -1;
0530736e
KB		 490}
491
583891c9
KB		 492static inline void pqi_schedule_rescan_worker_with_delay(struct pqi_ctrl_info *ctrl_info,
493 unsigned long delay)
5f310425
KB		 494{
495 if (pqi_ctrl_offline(ctrl_info))
496 return;
497
498 schedule_delayed_work(&ctrl_info->rescan_work, delay);
499}
500
6c223761
KB		 501static inline void pqi_schedule_rescan_worker(struct pqi_ctrl_info *ctrl_info)
502{
5f310425
KB		 503 pqi_schedule_rescan_worker_with_delay(ctrl_info, 0);
504}
505
42dc0426 506#define PQI_RESCAN_WORK_DELAY (10 * HZ)
5f310425 507
583891c9 508static inline void pqi_schedule_rescan_worker_delayed(struct pqi_ctrl_info *ctrl_info)
5f310425
KB		 509{
510 pqi_schedule_rescan_worker_with_delay(ctrl_info, PQI_RESCAN_WORK_DELAY);
6c223761
KB		 511}
512
061ef06a
KB		 513static inline void pqi_cancel_rescan_worker(struct pqi_ctrl_info *ctrl_info)
514{
515 cancel_delayed_work_sync(&ctrl_info->rescan_work);
516}
517
98f87667
KB		 518static inline u32 pqi_read_heartbeat_counter(struct pqi_ctrl_info *ctrl_info)
519{
520 if (!ctrl_info->heartbeat_counter)
521 return 0;
522
523 return readl(ctrl_info->heartbeat_counter);
524}
525
4fd22c13
MR		 526static inline u8 pqi_read_soft_reset_status(struct pqi_ctrl_info *ctrl_info)
527{
4fd22c13
MR		 528 return readb(ctrl_info->soft_reset_status);
529}
530
4ccc354b 531static inline void pqi_clear_soft_reset_status(struct pqi_ctrl_info *ctrl_info)
4fd22c13
MR		 532{
533 u8 status;
534
4fd22c13 535 status = pqi_read_soft_reset_status(ctrl_info);
4ccc354b 536 status &= ~PQI_SOFT_RESET_ABORT;
4fd22c13
MR		 537 writeb(status, ctrl_info->soft_reset_status);
538}
539
68f79204
GW		 540static inline bool pqi_is_io_high_priority(struct pqi_scsi_dev *device, struct scsi_cmnd *scmd)
541{
542 bool io_high_prio;
543 int priority_class;
544
545 io_high_prio = false;
546
547 if (device->ncq_prio_enable) {
548 priority_class =
549 IOPRIO_PRIO_CLASS(req_get_ioprio(scsi_cmd_to_rq(scmd)));
550 if (priority_class == IOPRIO_CLASS_RT) {
551 /* Set NCQ priority for read/write commands. */
552 switch (scmd->cmnd[0]) {
553 case WRITE_16:
554 case READ_16:
555 case WRITE_12:
556 case READ_12:
557 case WRITE_10:
558 case READ_10:
559 case WRITE_6:
560 case READ_6:
561 io_high_prio = true;
562 break;
563 }
564 }
565 }
566
567 return io_high_prio;
568}
569
6c223761
KB		 570static int pqi_map_single(struct pci_dev *pci_dev,
571 struct pqi_sg_descriptor *sg_descriptor, void *buffer,
6917a9cc 572 size_t buffer_length, enum dma_data_direction data_direction)
6c223761
KB		 573{
574 dma_addr_t bus_address;
575
6917a9cc 576 if (!buffer || buffer_length == 0 || data_direction == DMA_NONE)
6c223761
KB		 577 return 0;
578
6917a9cc 579 bus_address = dma_map_single(&pci_dev->dev, buffer, buffer_length,
6c223761 580 data_direction);
6917a9cc 581 if (dma_mapping_error(&pci_dev->dev, bus_address))
6c223761
KB		 582 return -ENOMEM;
583
584 put_unaligned_le64((u64)bus_address, &sg_descriptor->address);
585 put_unaligned_le32(buffer_length, &sg_descriptor->length);
586 put_unaligned_le32(CISS_SG_LAST, &sg_descriptor->flags);
587
588 return 0;
589}
590
591static void pqi_pci_unmap(struct pci_dev *pci_dev,
592 struct pqi_sg_descriptor *descriptors, int num_descriptors,
6917a9cc 593 enum dma_data_direction data_direction)
6c223761
KB		 594{
595 int i;
596
6917a9cc 597 if (data_direction == DMA_NONE)
6c223761
KB		 598 return;
599
600 for (i = 0; i < num_descriptors; i++)
6917a9cc 601 dma_unmap_single(&pci_dev->dev,
6c223761
KB		 602 (dma_addr_t)get_unaligned_le64(&descriptors[i].address),
603 get_unaligned_le32(&descriptors[i].length),
604 data_direction);
605}
606
607static int pqi_build_raid_path_request(struct pqi_ctrl_info *ctrl_info,
608 struct pqi_raid_path_request *request, u8 cmd,
609 u8 *scsi3addr, void *buffer, size_t buffer_length,
6917a9cc 610 u16 vpd_page, enum dma_data_direction *dir)
6c223761
KB		 611{
612 u8 *cdb;
171c2865 613 size_t cdb_length = buffer_length;
6c223761
KB		 614
615 memset(request, 0, sizeof(*request));
616
617 request->header.iu_type = PQI_REQUEST_IU_RAID_PATH_IO;
618 put_unaligned_le16(offsetof(struct pqi_raid_path_request,
619 sg_descriptors[1]) - PQI_REQUEST_HEADER_LENGTH,
620 &request->header.iu_length);
621 put_unaligned_le32(buffer_length, &request->buffer_length);
622 memcpy(request->lun_number, scsi3addr, sizeof(request->lun_number));
623 request->task_attribute = SOP_TASK_ATTRIBUTE_SIMPLE;
624 request->additional_cdb_bytes_usage = SOP_ADDITIONAL_CDB_BYTES_0;
625
626 cdb = request->cdb;
627
628 switch (cmd) {
629 case INQUIRY:
630 request->data_direction = SOP_READ_FLAG;
631 cdb[0] = INQUIRY;
632 if (vpd_page & VPD_PAGE) {
633 cdb[1] = 0x1;
634 cdb[2] = (u8)vpd_page;
635 }
171c2865 636 cdb[4] = (u8)cdb_length;
6c223761
KB		 637 break;
638 case CISS_REPORT_LOG:
639 case CISS_REPORT_PHYS:
640 request->data_direction = SOP_READ_FLAG;
641 cdb[0] = cmd;
28ca6d87
MM		 642 if (cmd == CISS_REPORT_PHYS) {
643 if (ctrl_info->rpl_extended_format_4_5_supported)
644 cdb[1] = CISS_REPORT_PHYS_FLAG_EXTENDED_FORMAT_4;
645 else
646 cdb[1] = CISS_REPORT_PHYS_FLAG_EXTENDED_FORMAT_2;
647 } else {
f6cc2a77 648 cdb[1] = ctrl_info->ciss_report_log_flags;
28ca6d87 649 }
171c2865 650 put_unaligned_be32(cdb_length, &cdb[6]);
6c223761
KB		 651 break;
652 case CISS_GET_RAID_MAP:
653 request->data_direction = SOP_READ_FLAG;
654 cdb[0] = CISS_READ;
655 cdb[1] = CISS_GET_RAID_MAP;
171c2865 656 put_unaligned_be32(cdb_length, &cdb[6]);
6c223761 657 break;
58322fe0 658 case SA_FLUSH_CACHE:
ae0c189d 659 request->header.driver_flags = PQI_DRIVER_NONBLOCKABLE_REQUEST;
6c223761
KB		 660 request->data_direction = SOP_WRITE_FLAG;
661 cdb[0] = BMIC_WRITE;
58322fe0 662 cdb[6] = BMIC_FLUSH_CACHE;
171c2865 663 put_unaligned_be16(cdb_length, &cdb[7]);
6c223761 664 break;
171c2865
DC		 665 case BMIC_SENSE_DIAG_OPTIONS:
666 cdb_length = 0;
df561f66 667 fallthrough;
6c223761
KB		 668 case BMIC_IDENTIFY_CONTROLLER:
669 case BMIC_IDENTIFY_PHYSICAL_DEVICE:
6d90615f 670 case BMIC_SENSE_SUBSYSTEM_INFORMATION:
f6cc2a77 671 case BMIC_SENSE_FEATURE:
6c223761
KB		 672 request->data_direction = SOP_READ_FLAG;
673 cdb[0] = BMIC_READ;
674 cdb[6] = cmd;
171c2865 675 put_unaligned_be16(cdb_length, &cdb[7]);
6c223761 676 break;
171c2865
DC		 677 case BMIC_SET_DIAG_OPTIONS:
678 cdb_length = 0;
df561f66 679 fallthrough;
6c223761
KB		 680 case BMIC_WRITE_HOST_WELLNESS:
681 request->data_direction = SOP_WRITE_FLAG;
682 cdb[0] = BMIC_WRITE;
683 cdb[6] = cmd;
171c2865 684 put_unaligned_be16(cdb_length, &cdb[7]);
6c223761 685 break;
3d46a59a
DB		 686 case BMIC_CSMI_PASSTHRU:
687 request->data_direction = SOP_BIDIRECTIONAL;
688 cdb[0] = BMIC_WRITE;
689 cdb[5] = CSMI_CC_SAS_SMP_PASSTHRU;
690 cdb[6] = cmd;
691 put_unaligned_be16(cdb_length, &cdb[7]);
6c223761
KB		 692 break;
693 default:
9e68cccc 694 dev_err(&ctrl_info->pci_dev->dev, "unknown command 0x%c\n", cmd);
6c223761
KB		 695 break;
696 }
697
698 switch (request->data_direction) {
699 case SOP_READ_FLAG:
6917a9cc 700 *dir = DMA_FROM_DEVICE;
6c223761
KB		 701 break;
702 case SOP_WRITE_FLAG:
6917a9cc 703 *dir = DMA_TO_DEVICE;
6c223761
KB		 704 break;
705 case SOP_NO_DIRECTION_FLAG:
6917a9cc 706 *dir = DMA_NONE;
6c223761
KB		 707 break;
708 default:
6917a9cc 709 *dir = DMA_BIDIRECTIONAL;
6c223761
KB		 710 break;
711 }
712
6c223761 713 return pqi_map_single(ctrl_info->pci_dev, &request->sg_descriptors[0],
6917a9cc 714 buffer, buffer_length, *dir);
6c223761
KB		 715}
716
376fb880
KB		 717static inline void pqi_reinit_io_request(struct pqi_io_request *io_request)
718{
719 io_request->scmd = NULL;
720 io_request->status = 0;
721 io_request->error_info = NULL;
722 io_request->raid_bypass = false;
723}
724
b27ac2fa 725static inline struct pqi_io_request *pqi_alloc_io_request(struct pqi_ctrl_info *ctrl_info, struct scsi_cmnd *scmd)
6c223761
KB		 726{
727 struct pqi_io_request *io_request;
b27ac2fa 728 u16 i;
6c223761 729
b27ac2fa
DB		 730 if (scmd) { /* SML I/O request */
731 u32 blk_tag = blk_mq_unique_tag(scsi_cmd_to_rq(scmd));
732
733 i = blk_mq_unique_tag_to_tag(blk_tag);
6c223761 734 io_request = &ctrl_info->io_request_pool[i];
b27ac2fa
DB		 735 if (atomic_inc_return(&io_request->refcount) > 1) {
736 atomic_dec(&io_request->refcount);
737 return NULL;
738 }
739 } else { /* IOCTL or driver internal request */
740 /*
741 * benignly racy - may have to wait for an open slot.
742 * command slot range is scsi_ml_can_queue -
743 * [scsi_ml_can_queue + (PQI_RESERVED_IO_SLOTS - 1)]
744 */
745 i = 0;
746 while (1) {
747 io_request = &ctrl_info->io_request_pool[ctrl_info->scsi_ml_can_queue + i];
748 if (atomic_inc_return(&io_request->refcount) == 1)
749 break;
750 atomic_dec(&io_request->refcount);
751 i = (i + 1) % PQI_RESERVED_IO_SLOTS;
752 }
6c223761
KB		 753 }
754
5c9e3c1c
MB		 755 if (io_request)
756 pqi_reinit_io_request(io_request);
6c223761
KB		 757
758 return io_request;
759}
760
761static void pqi_free_io_request(struct pqi_io_request *io_request)
762{
763 atomic_dec(&io_request->refcount);
764}
765
02133b68 766static int pqi_send_scsi_raid_request(struct pqi_ctrl_info *ctrl_info, u8 cmd,
694c5d5b 767 u8 *scsi3addr, void *buffer, size_t buffer_length, u16 vpd_page,
ae0c189d 768 struct pqi_raid_error_info *error_info)
6c223761
KB		 769{
770 int rc;
6c223761 771 struct pqi_raid_path_request request;
694c5d5b 772 enum dma_data_direction dir;
6c223761 773
583891c9
KB		 774 rc = pqi_build_raid_path_request(ctrl_info, &request, cmd, scsi3addr,
775 buffer, buffer_length, vpd_page, &dir);
6c223761
KB		 776 if (rc)
777 return rc;
778
ae0c189d 779 rc = pqi_submit_raid_request_synchronous(ctrl_info, &request.header, 0, error_info);
6c223761 780
6917a9cc 781 pqi_pci_unmap(ctrl_info->pci_dev, request.sg_descriptors, 1, dir);
694c5d5b 782
6c223761
KB		 783 return rc;
784}
785
694c5d5b 786/* helper functions for pqi_send_scsi_raid_request */
02133b68
DC		 787
788static inline int pqi_send_ctrl_raid_request(struct pqi_ctrl_info *ctrl_info,
694c5d5b 789 u8 cmd, void *buffer, size_t buffer_length)
6c223761 790{
02133b68 791 return pqi_send_scsi_raid_request(ctrl_info, cmd, RAID_CTLR_LUNID,
ae0c189d 792 buffer, buffer_length, 0, NULL);
02133b68 793}
6c223761 794
02133b68 795static inline int pqi_send_ctrl_raid_with_error(struct pqi_ctrl_info *ctrl_info,
694c5d5b
KB		 796 u8 cmd, void *buffer, size_t buffer_length,
797 struct pqi_raid_error_info *error_info)
02133b68
DC		 798{
799 return pqi_send_scsi_raid_request(ctrl_info, cmd, RAID_CTLR_LUNID,
ae0c189d 800 buffer, buffer_length, 0, error_info);
02133b68 801}
6c223761 802
02133b68 803static inline int pqi_identify_controller(struct pqi_ctrl_info *ctrl_info,
694c5d5b 804 struct bmic_identify_controller *buffer)
02133b68
DC		 805{
806 return pqi_send_ctrl_raid_request(ctrl_info, BMIC_IDENTIFY_CONTROLLER,
694c5d5b 807 buffer, sizeof(*buffer));
02133b68
DC		 808}
809
6d90615f 810static inline int pqi_sense_subsystem_info(struct pqi_ctrl_info *ctrl_info,
694c5d5b 811 struct bmic_sense_subsystem_info *sense_info)
6d90615f
MB		 812{
813 return pqi_send_ctrl_raid_request(ctrl_info,
694c5d5b
KB		 814 BMIC_SENSE_SUBSYSTEM_INFORMATION, sense_info,
815 sizeof(*sense_info));
6d90615f
MB		 816}
817
02133b68 818static inline int pqi_scsi_inquiry(struct pqi_ctrl_info *ctrl_info,
6c223761 819 u8 *scsi3addr, u16 vpd_page, void *buffer, size_t buffer_length)
02133b68
DC		 820{
821 return pqi_send_scsi_raid_request(ctrl_info, INQUIRY, scsi3addr,
ae0c189d 822 buffer, buffer_length, vpd_page, NULL);
6c223761
KB		 823}
824
825static int pqi_identify_physical_device(struct pqi_ctrl_info *ctrl_info,
826 struct pqi_scsi_dev *device,
694c5d5b 827 struct bmic_identify_physical_device *buffer, size_t buffer_length)
6c223761
KB		 828{
829 int rc;
6917a9cc 830 enum dma_data_direction dir;
6c223761
KB		 831 u16 bmic_device_index;
832 struct pqi_raid_path_request request;
833
834 rc = pqi_build_raid_path_request(ctrl_info, &request,
835 BMIC_IDENTIFY_PHYSICAL_DEVICE, RAID_CTLR_LUNID, buffer,
6917a9cc 836 buffer_length, 0, &dir);
6c223761
KB		 837 if (rc)
838 return rc;
839
840 bmic_device_index = CISS_GET_DRIVE_NUMBER(device->scsi3addr);
841 request.cdb[2] = (u8)bmic_device_index;
842 request.cdb[9] = (u8)(bmic_device_index >> 8);
843
ae0c189d 844 rc = pqi_submit_raid_request_synchronous(ctrl_info, &request.header, 0, NULL);
6c223761 845
6917a9cc 846 pqi_pci_unmap(ctrl_info->pci_dev, request.sg_descriptors, 1, dir);
694c5d5b 847
6c223761
KB		 848 return rc;
849}
850
f6cc2a77
KB		 851static inline u32 pqi_aio_limit_to_bytes(__le16 *limit)
852{
853 u32 bytes;
854
855 bytes = get_unaligned_le16(limit);
856 if (bytes == 0)
857 bytes = ~0;
858 else
859 bytes *= 1024;
860
861 return bytes;
862}
863
864#pragma pack(1)
865
866struct bmic_sense_feature_buffer {
867 struct bmic_sense_feature_buffer_header header;
868 struct bmic_sense_feature_io_page_aio_subpage aio_subpage;
869};
870
871#pragma pack()
872
873#define MINIMUM_AIO_SUBPAGE_BUFFER_LENGTH \
874 offsetofend(struct bmic_sense_feature_buffer, \
875 aio_subpage.max_write_raid_1_10_3drive)
876
877#define MINIMUM_AIO_SUBPAGE_LENGTH \
878 (offsetofend(struct bmic_sense_feature_io_page_aio_subpage, \
879 max_write_raid_1_10_3drive) - \
880 sizeof_field(struct bmic_sense_feature_io_page_aio_subpage, header))
881
882static int pqi_get_advanced_raid_bypass_config(struct pqi_ctrl_info *ctrl_info)
883{
884 int rc;
885 enum dma_data_direction dir;
886 struct pqi_raid_path_request request;
887 struct bmic_sense_feature_buffer *buffer;
888
889 buffer = kmalloc(sizeof(*buffer), GFP_KERNEL);
890 if (!buffer)
891 return -ENOMEM;
892
583891c9
KB		 893 rc = pqi_build_raid_path_request(ctrl_info, &request, BMIC_SENSE_FEATURE, RAID_CTLR_LUNID,
894 buffer, sizeof(*buffer), 0, &dir);
f6cc2a77
KB		 895 if (rc)
896 goto error;
897
898 request.cdb[2] = BMIC_SENSE_FEATURE_IO_PAGE;
899 request.cdb[3] = BMIC_SENSE_FEATURE_IO_PAGE_AIO_SUBPAGE;
900
ae0c189d 901 rc = pqi_submit_raid_request_synchronous(ctrl_info, &request.header, 0, NULL);
6c223761 902
6917a9cc 903 pqi_pci_unmap(ctrl_info->pci_dev, request.sg_descriptors, 1, dir);
694c5d5b 904
f6cc2a77
KB		 905 if (rc)
906 goto error;
907
908 if (buffer->header.page_code != BMIC_SENSE_FEATURE_IO_PAGE ||
909 buffer->header.subpage_code !=
910 BMIC_SENSE_FEATURE_IO_PAGE_AIO_SUBPAGE ||
911 get_unaligned_le16(&buffer->header.buffer_length) <
912 MINIMUM_AIO_SUBPAGE_BUFFER_LENGTH ||
913 buffer->aio_subpage.header.page_code !=
914 BMIC_SENSE_FEATURE_IO_PAGE ||
915 buffer->aio_subpage.header.subpage_code !=
916 BMIC_SENSE_FEATURE_IO_PAGE_AIO_SUBPAGE ||
917 get_unaligned_le16(&buffer->aio_subpage.header.page_length) <
918 MINIMUM_AIO_SUBPAGE_LENGTH) {
919 goto error;
920 }
921
922 ctrl_info->max_transfer_encrypted_sas_sata =
923 pqi_aio_limit_to_bytes(
924 &buffer->aio_subpage.max_transfer_encrypted_sas_sata);
925
926 ctrl_info->max_transfer_encrypted_nvme =
927 pqi_aio_limit_to_bytes(
928 &buffer->aio_subpage.max_transfer_encrypted_nvme);
929
930 ctrl_info->max_write_raid_5_6 =
931 pqi_aio_limit_to_bytes(
932 &buffer->aio_subpage.max_write_raid_5_6);
933
934 ctrl_info->max_write_raid_1_10_2drive =
935 pqi_aio_limit_to_bytes(
936 &buffer->aio_subpage.max_write_raid_1_10_2drive);
937
938 ctrl_info->max_write_raid_1_10_3drive =
939 pqi_aio_limit_to_bytes(
940 &buffer->aio_subpage.max_write_raid_1_10_3drive);
941
942error:
943 kfree(buffer);
944
6c223761
KB		 945 return rc;
946}
947
58322fe0
KB		 948static int pqi_flush_cache(struct pqi_ctrl_info *ctrl_info,
949 enum bmic_flush_cache_shutdown_event shutdown_event)
6c223761
KB		 950{
951 int rc;
58322fe0 952 struct bmic_flush_cache *flush_cache;
6c223761 953
58322fe0
KB		 954 flush_cache = kzalloc(sizeof(*flush_cache), GFP_KERNEL);
955 if (!flush_cache)
6c223761
KB		 956 return -ENOMEM;
957
58322fe0
KB		 958 flush_cache->shutdown_event = shutdown_event;
959
02133b68
DC		 960 rc = pqi_send_ctrl_raid_request(ctrl_info, SA_FLUSH_CACHE, flush_cache,
961 sizeof(*flush_cache));
6c223761 962
58322fe0 963 kfree(flush_cache);
6c223761
KB		 964
965 return rc;
966}
967
3d46a59a
DB		 968int pqi_csmi_smp_passthru(struct pqi_ctrl_info *ctrl_info,
969 struct bmic_csmi_smp_passthru_buffer *buffer, size_t buffer_length,
970 struct pqi_raid_error_info *error_info)
971{
972 return pqi_send_ctrl_raid_with_error(ctrl_info, BMIC_CSMI_PASSTHRU,
973 buffer, buffer_length, error_info);
974}
171c2865 975
694c5d5b 976#define PQI_FETCH_PTRAID_DATA (1 << 31)
171c2865
DC		 977
978static int pqi_set_diag_rescan(struct pqi_ctrl_info *ctrl_info)
6c223761
KB		 979{
980 int rc;
171c2865 981 struct bmic_diag_options *diag;
6c223761 982
171c2865
DC		 983 diag = kzalloc(sizeof(*diag), GFP_KERNEL);
984 if (!diag)
985 return -ENOMEM;
986
02133b68 987 rc = pqi_send_ctrl_raid_request(ctrl_info, BMIC_SENSE_DIAG_OPTIONS,
694c5d5b 988 diag, sizeof(*diag));
6c223761 989 if (rc)
171c2865 990 goto out;
6c223761 991
171c2865
DC		 992 diag->options |= cpu_to_le32(PQI_FETCH_PTRAID_DATA);
993
694c5d5b
KB		 994 rc = pqi_send_ctrl_raid_request(ctrl_info, BMIC_SET_DIAG_OPTIONS, diag,
995 sizeof(*diag));
996
171c2865
DC		 997out:
998 kfree(diag);
6c223761 999
6c223761
KB		 1000 return rc;
1001}
1002
02133b68 1003static inline int pqi_write_host_wellness(struct pqi_ctrl_info *ctrl_info,
6c223761
KB		 1004 void *buffer, size_t buffer_length)
1005{
02133b68 1006 return pqi_send_ctrl_raid_request(ctrl_info, BMIC_WRITE_HOST_WELLNESS,
694c5d5b 1007 buffer, buffer_length);
6c223761
KB		 1008}
1009
1010#pragma pack(1)
1011
1012struct bmic_host_wellness_driver_version {
1013 u8 start_tag[4];
1014 u8 driver_version_tag[2];
1015 __le16 driver_version_length;
1016 char driver_version[32];
b2346b50 1017 u8 dont_write_tag[2];
6c223761
KB		 1018 u8 end_tag[2];
1019};
1020
1021#pragma pack()
1022
1023static int pqi_write_driver_version_to_host_wellness(
1024 struct pqi_ctrl_info *ctrl_info)
1025{
1026 int rc;
1027 struct bmic_host_wellness_driver_version *buffer;
1028 size_t buffer_length;
1029
1030 buffer_length = sizeof(*buffer);
1031
1032 buffer = kmalloc(buffer_length, GFP_KERNEL);
1033 if (!buffer)
1034 return -ENOMEM;
1035
1036 buffer->start_tag[0] = '<';
1037 buffer->start_tag[1] = 'H';
1038 buffer->start_tag[2] = 'W';
1039 buffer->start_tag[3] = '>';
1040 buffer->driver_version_tag[0] = 'D';
1041 buffer->driver_version_tag[1] = 'V';
1042 put_unaligned_le16(sizeof(buffer->driver_version),
1043 &buffer->driver_version_length);
061ef06a 1044 strncpy(buffer->driver_version, "Linux " DRIVER_VERSION,
6c223761
KB		 1045 sizeof(buffer->driver_version) - 1);
1046 buffer->driver_version[sizeof(buffer->driver_version) - 1] = '\0';
b2346b50
MR		 1047 buffer->dont_write_tag[0] = 'D';
1048 buffer->dont_write_tag[1] = 'W';
6c223761
KB		 1049 buffer->end_tag[0] = 'Z';
1050 buffer->end_tag[1] = 'Z';
1051
1052 rc = pqi_write_host_wellness(ctrl_info, buffer, buffer_length);
1053
1054 kfree(buffer);
1055
1056 return rc;
1057}
1058
1059#pragma pack(1)
1060
1061struct bmic_host_wellness_time {
1062 u8 start_tag[4];
1063 u8 time_tag[2];
1064 __le16 time_length;
1065 u8 time[8];
1066 u8 dont_write_tag[2];
1067 u8 end_tag[2];
1068};
1069
1070#pragma pack()
1071
1072static int pqi_write_current_time_to_host_wellness(
1073 struct pqi_ctrl_info *ctrl_info)
1074{
1075 int rc;
1076 struct bmic_host_wellness_time *buffer;
1077 size_t buffer_length;
1078 time64_t local_time;
1079 unsigned int year;
ed10858e 1080 struct tm tm;
6c223761
KB		 1081
1082 buffer_length = sizeof(*buffer);
1083
1084 buffer = kmalloc(buffer_length, GFP_KERNEL);
1085 if (!buffer)
1086 return -ENOMEM;
1087
1088 buffer->start_tag[0] = '<';
1089 buffer->start_tag[1] = 'H';
1090 buffer->start_tag[2] = 'W';
1091 buffer->start_tag[3] = '>';
1092 buffer->time_tag[0] = 'T';
1093 buffer->time_tag[1] = 'D';
1094 put_unaligned_le16(sizeof(buffer->time),
1095 &buffer->time_length);
1096
ed10858e
AB		 1097 local_time = ktime_get_real_seconds();
1098 time64_to_tm(local_time, -sys_tz.tz_minuteswest * 60, &tm);
6c223761
KB		 1099 year = tm.tm_year + 1900;
1100
1101 buffer->time[0] = bin2bcd(tm.tm_hour);
1102 buffer->time[1] = bin2bcd(tm.tm_min);
1103 buffer->time[2] = bin2bcd(tm.tm_sec);
1104 buffer->time[3] = 0;
1105 buffer->time[4] = bin2bcd(tm.tm_mon + 1);
1106 buffer->time[5] = bin2bcd(tm.tm_mday);
1107 buffer->time[6] = bin2bcd(year / 100);
1108 buffer->time[7] = bin2bcd(year % 100);
1109
1110 buffer->dont_write_tag[0] = 'D';
1111 buffer->dont_write_tag[1] = 'W';
1112 buffer->end_tag[0] = 'Z';
1113 buffer->end_tag[1] = 'Z';
1114
1115 rc = pqi_write_host_wellness(ctrl_info, buffer, buffer_length);
1116
1117 kfree(buffer);
1118
1119 return rc;
1120}
1121
42dc0426 1122#define PQI_UPDATE_TIME_WORK_INTERVAL (24UL * 60 * 60 * HZ)
6c223761
KB		 1123
1124static void pqi_update_time_worker(struct work_struct *work)
1125{
1126 int rc;
1127 struct pqi_ctrl_info *ctrl_info;
1128
1129 ctrl_info = container_of(to_delayed_work(work), struct pqi_ctrl_info,
1130 update_time_work);
1131
6c223761
KB		 1132 rc = pqi_write_current_time_to_host_wellness(ctrl_info);
1133 if (rc)
1134 dev_warn(&ctrl_info->pci_dev->dev,
1135 "error updating time on controller\n");
1136
1137 schedule_delayed_work(&ctrl_info->update_time_work,
1138 PQI_UPDATE_TIME_WORK_INTERVAL);
1139}
1140
583891c9 1141static inline void pqi_schedule_update_time_worker(struct pqi_ctrl_info *ctrl_info)
6c223761 1142{
4fbebf1a 1143 schedule_delayed_work(&ctrl_info->update_time_work, 0);
061ef06a
KB		 1144}
1145
583891c9 1146static inline void pqi_cancel_update_time_worker(struct pqi_ctrl_info *ctrl_info)
061ef06a 1147{
061ef06a 1148 cancel_delayed_work_sync(&ctrl_info->update_time_work);
6c223761
KB		 1149}
1150
583891c9
KB		 1151static inline int pqi_report_luns(struct pqi_ctrl_info *ctrl_info, u8 cmd, void *buffer,
1152 size_t buffer_length)
6c223761 1153{
583891c9 1154 return pqi_send_ctrl_raid_request(ctrl_info, cmd, buffer, buffer_length);
6c223761
KB		 1155}
1156
583891c9 1157static int pqi_report_phys_logical_luns(struct pqi_ctrl_info *ctrl_info, u8 cmd, void **buffer)
6c223761
KB		 1158{
1159 int rc;
1160 size_t lun_list_length;
1161 size_t lun_data_length;
1162 size_t new_lun_list_length;
1163 void *lun_data = NULL;
1164 struct report_lun_header *report_lun_header;
1165
1166 report_lun_header = kmalloc(sizeof(*report_lun_header), GFP_KERNEL);
1167 if (!report_lun_header) {
1168 rc = -ENOMEM;
1169 goto out;
1170 }
1171
583891c9 1172 rc = pqi_report_luns(ctrl_info, cmd, report_lun_header, sizeof(*report_lun_header));
6c223761
KB		 1173 if (rc)
1174 goto out;
1175
1176 lun_list_length = get_unaligned_be32(&report_lun_header->list_length);
1177
1178again:
1179 lun_data_length = sizeof(struct report_lun_header) + lun_list_length;
1180
1181 lun_data = kmalloc(lun_data_length, GFP_KERNEL);
1182 if (!lun_data) {
1183 rc = -ENOMEM;
1184 goto out;
1185 }
1186
1187 if (lun_list_length == 0) {
1188 memcpy(lun_data, report_lun_header, sizeof(*report_lun_header));
1189 goto out;
1190 }
1191
1192 rc = pqi_report_luns(ctrl_info, cmd, lun_data, lun_data_length);
1193 if (rc)
1194 goto out;
1195
583891c9
KB		 1196 new_lun_list_length =
1197 get_unaligned_be32(&((struct report_lun_header *)lun_data)->list_length);
6c223761
KB		 1198
1199 if (new_lun_list_length > lun_list_length) {
1200 lun_list_length = new_lun_list_length;
1201 kfree(lun_data);
1202 goto again;
1203 }
1204
1205out:
1206 kfree(report_lun_header);
1207
1208 if (rc) {
1209 kfree(lun_data);
1210 lun_data = NULL;
1211 }
1212
1213 *buffer = lun_data;
1214
1215 return rc;
1216}
1217
583891c9 1218static inline int pqi_report_phys_luns(struct pqi_ctrl_info *ctrl_info, void **buffer)
6c223761 1219{
28ca6d87
MM		 1220 int rc;
1221 unsigned int i;
1222 u8 rpl_response_format;
1223 u32 num_physicals;
28ca6d87
MM		 1224 void *rpl_list;
1225 struct report_lun_header *rpl_header;
1226 struct report_phys_lun_8byte_wwid_list *rpl_8byte_wwid_list;
1227 struct report_phys_lun_16byte_wwid_list *rpl_16byte_wwid_list;
1228
1229 rc = pqi_report_phys_logical_luns(ctrl_info, CISS_REPORT_PHYS, &rpl_list);
1230 if (rc)
1231 return rc;
1232
1233 if (ctrl_info->rpl_extended_format_4_5_supported) {
1234 rpl_header = rpl_list;
1235 rpl_response_format = rpl_header->flags & CISS_REPORT_PHYS_FLAG_EXTENDED_FORMAT_MASK;
1236 if (rpl_response_format == CISS_REPORT_PHYS_FLAG_EXTENDED_FORMAT_4) {
1237 *buffer = rpl_list;
1238 return 0;
1239 } else if (rpl_response_format != CISS_REPORT_PHYS_FLAG_EXTENDED_FORMAT_2) {
1240 dev_err(&ctrl_info->pci_dev->dev,
1241 "RPL returned unsupported data format %u\n",
1242 rpl_response_format);
1243 return -EINVAL;
1244 } else {
1245 dev_warn(&ctrl_info->pci_dev->dev,
1246 "RPL returned extended format 2 instead of 4\n");
1247 }
1248 }
1249
1250 rpl_8byte_wwid_list = rpl_list;
1251 num_physicals = get_unaligned_be32(&rpl_8byte_wwid_list->header.list_length) / sizeof(rpl_8byte_wwid_list->lun_entries[0]);
28ca6d87 1252
6f0a92fd
GS		 1253 rpl_16byte_wwid_list = kmalloc(struct_size(rpl_16byte_wwid_list, lun_entries,
1254 num_physicals), GFP_KERNEL);
28ca6d87
MM		 1255 if (!rpl_16byte_wwid_list)
1256 return -ENOMEM;
1257
1258 put_unaligned_be32(num_physicals * sizeof(struct report_phys_lun_16byte_wwid),
1259 &rpl_16byte_wwid_list->header.list_length);
1260 rpl_16byte_wwid_list->header.flags = rpl_8byte_wwid_list->header.flags;
1261
1262 for (i = 0; i < num_physicals; i++) {
1263 memcpy(&rpl_16byte_wwid_list->lun_entries[i].lunid, &rpl_8byte_wwid_list->lun_entries[i].lunid, sizeof(rpl_8byte_wwid_list->lun_entries[i].lunid));
291c2e00
KB		 1264 memcpy(&rpl_16byte_wwid_list->lun_entries[i].wwid[0], &rpl_8byte_wwid_list->lun_entries[i].wwid, sizeof(rpl_8byte_wwid_list->lun_entries[i].wwid));
1265 memset(&rpl_16byte_wwid_list->lun_entries[i].wwid[8], 0, 8);
28ca6d87
MM		 1266 rpl_16byte_wwid_list->lun_entries[i].device_type = rpl_8byte_wwid_list->lun_entries[i].device_type;
1267 rpl_16byte_wwid_list->lun_entries[i].device_flags = rpl_8byte_wwid_list->lun_entries[i].device_flags;
1268 rpl_16byte_wwid_list->lun_entries[i].lun_count = rpl_8byte_wwid_list->lun_entries[i].lun_count;
1269 rpl_16byte_wwid_list->lun_entries[i].redundant_paths = rpl_8byte_wwid_list->lun_entries[i].redundant_paths;
1270 rpl_16byte_wwid_list->lun_entries[i].aio_handle = rpl_8byte_wwid_list->lun_entries[i].aio_handle;
1271 }
1272
1273 kfree(rpl_8byte_wwid_list);
1274 *buffer = rpl_16byte_wwid_list;
1275
1276 return 0;
6c223761
KB		 1277}
1278
583891c9 1279static inline int pqi_report_logical_luns(struct pqi_ctrl_info *ctrl_info, void **buffer)
6c223761
KB		 1280{
1281 return pqi_report_phys_logical_luns(ctrl_info, CISS_REPORT_LOG, buffer);
1282}
1283
1284static int pqi_get_device_lists(struct pqi_ctrl_info *ctrl_info,
28ca6d87
MM		 1285 struct report_phys_lun_16byte_wwid_list **physdev_list,
1286 struct report_log_lun_list **logdev_list)
6c223761
KB		 1287{
1288 int rc;
1289 size_t logdev_list_length;
1290 size_t logdev_data_length;
28ca6d87
MM		 1291 struct report_log_lun_list *internal_logdev_list;
1292 struct report_log_lun_list *logdev_data;
6c223761
KB		 1293 struct report_lun_header report_lun_header;
1294
1295 rc = pqi_report_phys_luns(ctrl_info, (void **)physdev_list);
1296 if (rc)
1297 dev_err(&ctrl_info->pci_dev->dev,
1298 "report physical LUNs failed\n");
1299
1300 rc = pqi_report_logical_luns(ctrl_info, (void **)logdev_list);
1301 if (rc)
1302 dev_err(&ctrl_info->pci_dev->dev,
1303 "report logical LUNs failed\n");
1304
1305 /*
ead82126
GS		 1306 * Tack the controller itself onto the end of the logical device list
1307 * by adding a list entry that is all zeros.
6c223761
KB		 1308 */
1309
1310 logdev_data = *logdev_list;
1311
1312 if (logdev_data) {
1313 logdev_list_length =
1314 get_unaligned_be32(&logdev_data->header.list_length);
1315 } else {
1316 memset(&report_lun_header, 0, sizeof(report_lun_header));
1317 logdev_data =
28ca6d87 1318 (struct report_log_lun_list *)&report_lun_header;
6c223761
KB		 1319 logdev_list_length = 0;
1320 }
1321
1322 logdev_data_length = sizeof(struct report_lun_header) +
1323 logdev_list_length;
1324
1325 internal_logdev_list = kmalloc(logdev_data_length +
28ca6d87 1326 sizeof(struct report_log_lun), GFP_KERNEL);
6c223761
KB		 1327 if (!internal_logdev_list) {
1328 kfree(*logdev_list);
1329 *logdev_list = NULL;
1330 return -ENOMEM;
1331 }
1332
1333 memcpy(internal_logdev_list, logdev_data, logdev_data_length);
1334 memset((u8 *)internal_logdev_list + logdev_data_length, 0,
28ca6d87 1335 sizeof(struct report_log_lun));
6c223761 1336 put_unaligned_be32(logdev_list_length +
28ca6d87 1337 sizeof(struct report_log_lun),
6c223761
KB		 1338 &internal_logdev_list->header.list_length);
1339
1340 kfree(*logdev_list);
1341 *logdev_list = internal_logdev_list;
1342
1343 return 0;
1344}
1345
1346static inline void pqi_set_bus_target_lun(struct pqi_scsi_dev *device,
1347 int bus, int target, int lun)
1348{
1349 device->bus = bus;
1350 device->target = target;
1351 device->lun = lun;
1352}
1353
1354static void pqi_assign_bus_target_lun(struct pqi_scsi_dev *device)
1355{
1356 u8 *scsi3addr;
1357 u32 lunid;
bd10cf0b
KB		 1358 int bus;
1359 int target;
1360 int lun;
6c223761
KB		 1361
1362 scsi3addr = device->scsi3addr;
1363 lunid = get_unaligned_le32(scsi3addr);
1364
1365 if (pqi_is_hba_lunid(scsi3addr)) {
1366 /* The specified device is the controller. */
1367 pqi_set_bus_target_lun(device, PQI_HBA_BUS, 0, lunid & 0x3fff);
1368 device->target_lun_valid = true;
1369 return;
1370 }
1371
1372 if (pqi_is_logical_device(device)) {
bd10cf0b
KB		 1373 if (device->is_external_raid_device) {
1374 bus = PQI_EXTERNAL_RAID_VOLUME_BUS;
1375 target = (lunid >> 16) & 0x3fff;
1376 lun = lunid & 0xff;
1377 } else {
1378 bus = PQI_RAID_VOLUME_BUS;
1379 target = 0;
1380 lun = lunid & 0x3fff;
1381 }
1382 pqi_set_bus_target_lun(device, bus, target, lun);
6c223761
KB		 1383 device->target_lun_valid = true;
1384 return;
1385 }
1386
1387 /*
1388 * Defer target and LUN assignment for non-controller physical devices
1389 * because the SAS transport layer will make these assignments later.
1390 */
1391 pqi_set_bus_target_lun(device, PQI_PHYSICAL_DEVICE_BUS, 0, 0);
1392}
1393
1394static void pqi_get_raid_level(struct pqi_ctrl_info *ctrl_info,
1395 struct pqi_scsi_dev *device)
1396{
1397 int rc;
1398 u8 raid_level;
1399 u8 *buffer;
1400
1401 raid_level = SA_RAID_UNKNOWN;
1402
1403 buffer = kmalloc(64, GFP_KERNEL);
1404 if (buffer) {
1405 rc = pqi_scsi_inquiry(ctrl_info, device->scsi3addr,
1406 VPD_PAGE | CISS_VPD_LV_DEVICE_GEOMETRY, buffer, 64);
1407 if (rc == 0) {
1408 raid_level = buffer[8];
1409 if (raid_level > SA_RAID_MAX)
1410 raid_level = SA_RAID_UNKNOWN;
1411 }
1412 kfree(buffer);
1413 }
1414
1415 device->raid_level = raid_level;
1416}
1417
1418static int pqi_validate_raid_map(struct pqi_ctrl_info *ctrl_info,
1419 struct pqi_scsi_dev *device, struct raid_map *raid_map)
1420{
1421 char *err_msg;
1422 u32 raid_map_size;
1423 u32 r5or6_blocks_per_row;
6c223761
KB		 1424
1425 raid_map_size = get_unaligned_le32(&raid_map->structure_size);
1426
1427 if (raid_map_size < offsetof(struct raid_map, disk_data)) {
1428 err_msg = "RAID map too small";
1429 goto bad_raid_map;
1430 }
1431
6c223761
KB		 1432 if (device->raid_level == SA_RAID_1) {
1433 if (get_unaligned_le16(&raid_map->layout_map_count) != 2) {
1434 err_msg = "invalid RAID-1 map";
1435 goto bad_raid_map;
1436 }
7a012c23 1437 } else if (device->raid_level == SA_RAID_TRIPLE) {
6c223761 1438 if (get_unaligned_le16(&raid_map->layout_map_count) != 3) {
7a012c23 1439 err_msg = "invalid RAID-1(Triple) map";
6c223761
KB		 1440 goto bad_raid_map;
1441 }
1442 } else if ((device->raid_level == SA_RAID_5 ||
1443 device->raid_level == SA_RAID_6) &&
1444 get_unaligned_le16(&raid_map->layout_map_count) > 1) {
1445 /* RAID 50/60 */
1446 r5or6_blocks_per_row =
1447 get_unaligned_le16(&raid_map->strip_size) *
1448 get_unaligned_le16(&raid_map->data_disks_per_row);
1449 if (r5or6_blocks_per_row == 0) {
1450 err_msg = "invalid RAID-5 or RAID-6 map";
1451 goto bad_raid_map;
1452 }
1453 }
1454
1455 return 0;
1456
1457bad_raid_map:
d87d5474 1458 dev_warn(&ctrl_info->pci_dev->dev,
38a7338a
KB		 1459 "logical device %08x%08x %s\n",
1460 *((u32 *)&device->scsi3addr),
1461 *((u32 *)&device->scsi3addr[4]), err_msg);
6c223761
KB		 1462
1463 return -EINVAL;
1464}
1465
1466static int pqi_get_raid_map(struct pqi_ctrl_info *ctrl_info,
1467 struct pqi_scsi_dev *device)
1468{
1469 int rc;
a91aaae0 1470 u32 raid_map_size;
6c223761
KB		 1471 struct raid_map *raid_map;
1472
1473 raid_map = kmalloc(sizeof(*raid_map), GFP_KERNEL);
1474 if (!raid_map)
1475 return -ENOMEM;
1476
a91aaae0 1477 rc = pqi_send_scsi_raid_request(ctrl_info, CISS_GET_RAID_MAP,
ae0c189d 1478 device->scsi3addr, raid_map, sizeof(*raid_map), 0, NULL);
6c223761
KB		 1479 if (rc)
1480 goto error;
1481
a91aaae0 1482 raid_map_size = get_unaligned_le32(&raid_map->structure_size);
6c223761 1483
a91aaae0 1484 if (raid_map_size > sizeof(*raid_map)) {
6c223761 1485
a91aaae0
AK		 1486 kfree(raid_map);
1487
1488 raid_map = kmalloc(raid_map_size, GFP_KERNEL);
1489 if (!raid_map)
1490 return -ENOMEM;
1491
1492 rc = pqi_send_scsi_raid_request(ctrl_info, CISS_GET_RAID_MAP,
ae0c189d 1493 device->scsi3addr, raid_map, raid_map_size, 0, NULL);
a91aaae0
AK		 1494 if (rc)
1495 goto error;
1496
1497 if (get_unaligned_le32(&raid_map->structure_size)
1498 != raid_map_size) {
1499 dev_warn(&ctrl_info->pci_dev->dev,
583891c9 1500 "requested %u bytes, received %u bytes\n",
a91aaae0
AK		 1501 raid_map_size,
1502 get_unaligned_le32(&raid_map->structure_size));
d1f6581a 1503 rc = -EINVAL;
a91aaae0
AK		 1504 goto error;
1505 }
1506 }
6c223761
KB		 1507
1508 rc = pqi_validate_raid_map(ctrl_info, device, raid_map);
1509 if (rc)
1510 goto error;
1511
1512 device->raid_map = raid_map;
1513
1514 return 0;
1515
1516error:
1517 kfree(raid_map);
1518
1519 return rc;
1520}
1521
f6cc2a77
KB		 1522static void pqi_set_max_transfer_encrypted(struct pqi_ctrl_info *ctrl_info,
1523 struct pqi_scsi_dev *device)
1524{
1525 if (!ctrl_info->lv_drive_type_mix_valid) {
1526 device->max_transfer_encrypted = ~0;
1527 return;
1528 }
1529
1530 switch (LV_GET_DRIVE_TYPE_MIX(device->scsi3addr)) {
1531 case LV_DRIVE_TYPE_MIX_SAS_HDD_ONLY:
1532 case LV_DRIVE_TYPE_MIX_SATA_HDD_ONLY:
1533 case LV_DRIVE_TYPE_MIX_SAS_OR_SATA_SSD_ONLY:
1534 case LV_DRIVE_TYPE_MIX_SAS_SSD_ONLY:
1535 case LV_DRIVE_TYPE_MIX_SATA_SSD_ONLY:
1536 case LV_DRIVE_TYPE_MIX_SAS_ONLY:
1537 case LV_DRIVE_TYPE_MIX_SATA_ONLY:
1538 device->max_transfer_encrypted =
1539 ctrl_info->max_transfer_encrypted_sas_sata;
1540 break;
1541 case LV_DRIVE_TYPE_MIX_NVME_ONLY:
1542 device->max_transfer_encrypted =
1543 ctrl_info->max_transfer_encrypted_nvme;
1544 break;
1545 case LV_DRIVE_TYPE_MIX_UNKNOWN:
1546 case LV_DRIVE_TYPE_MIX_NO_RESTRICTION:
1547 default:
1548 device->max_transfer_encrypted =
1549 min(ctrl_info->max_transfer_encrypted_sas_sata,
1550 ctrl_info->max_transfer_encrypted_nvme);
1551 break;
1552 }
1553}
1554
588a63fe 1555static void pqi_get_raid_bypass_status(struct pqi_ctrl_info *ctrl_info,
6c223761
KB		 1556 struct pqi_scsi_dev *device)
1557{
1558 int rc;
1559 u8 *buffer;
588a63fe 1560 u8 bypass_status;
6c223761
KB		 1561
1562 buffer = kmalloc(64, GFP_KERNEL);
1563 if (!buffer)
1564 return;
1565
1566 rc = pqi_scsi_inquiry(ctrl_info, device->scsi3addr,
588a63fe 1567 VPD_PAGE | CISS_VPD_LV_BYPASS_STATUS, buffer, 64);
6c223761
KB		 1568 if (rc)
1569 goto out;
1570
694c5d5b
KB		 1571#define RAID_BYPASS_STATUS 4
1572#define RAID_BYPASS_CONFIGURED 0x1
1573#define RAID_BYPASS_ENABLED 0x2
6c223761 1574
588a63fe
KB		 1575 bypass_status = buffer[RAID_BYPASS_STATUS];
1576 device->raid_bypass_configured =
1577 (bypass_status & RAID_BYPASS_CONFIGURED) != 0;
1578 if (device->raid_bypass_configured &&
1579 (bypass_status & RAID_BYPASS_ENABLED) &&
f6cc2a77 1580 pqi_get_raid_map(ctrl_info, device) == 0) {
588a63fe 1581 device->raid_bypass_enabled = true;
f6cc2a77
KB		 1582 if (get_unaligned_le16(&device->raid_map->flags) &
1583 RAID_MAP_ENCRYPTION_ENABLED)
1584 pqi_set_max_transfer_encrypted(ctrl_info, device);
1585 }
6c223761
KB		 1586
1587out:
1588 kfree(buffer);
1589}
1590
1591/*
1592 * Use vendor-specific VPD to determine online/offline status of a volume.
1593 */
1594
1595static void pqi_get_volume_status(struct pqi_ctrl_info *ctrl_info,
1596 struct pqi_scsi_dev *device)
1597{
1598 int rc;
1599 size_t page_length;
1600 u8 volume_status = CISS_LV_STATUS_UNAVAILABLE;
1601 bool volume_offline = true;
1602 u32 volume_flags;
1603 struct ciss_vpd_logical_volume_status *vpd;
1604
1605 vpd = kmalloc(sizeof(*vpd), GFP_KERNEL);
1606 if (!vpd)
1607 goto no_buffer;
1608
1609 rc = pqi_scsi_inquiry(ctrl_info, device->scsi3addr,
1610 VPD_PAGE | CISS_VPD_LV_STATUS, vpd, sizeof(*vpd));
1611 if (rc)
1612 goto out;
1613
7ff44499
DC		 1614 if (vpd->page_code != CISS_VPD_LV_STATUS)
1615 goto out;
1616
6c223761
KB		 1617 page_length = offsetof(struct ciss_vpd_logical_volume_status,
1618 volume_status) + vpd->page_length;
1619 if (page_length < sizeof(*vpd))
1620 goto out;
1621
1622 volume_status = vpd->volume_status;
1623 volume_flags = get_unaligned_be32(&vpd->flags);
1624 volume_offline = (volume_flags & CISS_LV_FLAGS_NO_HOST_IO) != 0;
1625
1626out:
1627 kfree(vpd);
1628no_buffer:
1629 device->volume_status = volume_status;
1630 device->volume_offline = volume_offline;
1631}
1632
2a47834d 1633#define PQI_DEVICE_NCQ_PRIO_SUPPORTED 0x01
ec504b23 1634#define PQI_DEVICE_PHY_MAP_SUPPORTED 0x10
2eddf98d 1635#define PQI_DEVICE_ERASE_IN_PROGRESS 0x10
ec504b23 1636
ce143793
KB		 1637static int pqi_get_physical_device_info(struct pqi_ctrl_info *ctrl_info,
1638 struct pqi_scsi_dev *device,
1639 struct bmic_identify_physical_device *id_phys)
1640{
1641 int rc;
26b390ab 1642
ce143793
KB		 1643 memset(id_phys, 0, sizeof(*id_phys));
1644
1645 rc = pqi_identify_physical_device(ctrl_info, device,
1646 id_phys, sizeof(*id_phys));
1647 if (rc) {
1648 device->queue_depth = PQI_PHYSICAL_DISK_DEFAULT_MAX_QUEUE_DEPTH;
1649 return rc;
1650 }
1651
1652 scsi_sanitize_inquiry_string(&id_phys->model[0], 8);
1653 scsi_sanitize_inquiry_string(&id_phys->model[8], 16);
1654
1655 memcpy(device->vendor, &id_phys->model[0], sizeof(device->vendor));
1656 memcpy(device->model, &id_phys->model[8], sizeof(device->model));
1657
1658 device->box_index = id_phys->box_index;
1659 device->phys_box_on_bus = id_phys->phys_box_on_bus;
1660 device->phy_connected_dev_type = id_phys->phy_connected_dev_type[0];
1661 device->queue_depth =
1662 get_unaligned_le16(&id_phys->current_queue_depth_limit);
1663 device->active_path_index = id_phys->active_path_number;
1664 device->path_map = id_phys->redundant_path_present_map;
1665 memcpy(&device->box,
1666 &id_phys->alternate_paths_phys_box_on_port,
1667 sizeof(device->box));
1668 memcpy(&device->phys_connector,
1669 &id_phys->alternate_paths_phys_connector,
1670 sizeof(device->phys_connector));
1671 device->bay = id_phys->phys_bay_in_box;
cc9befcb 1672 device->lun_count = id_phys->multi_lun_device_lun_count;
ec504b23
MB		 1673 if ((id_phys->even_more_flags & PQI_DEVICE_PHY_MAP_SUPPORTED) &&
1674 id_phys->phy_count)
1675 device->phy_id =
1676 id_phys->phy_to_phy_map[device->active_path_index];
1677 else
1678 device->phy_id = 0xFF;
1679
2a47834d
GW		 1680 device->ncq_prio_support =
1681 ((get_unaligned_le32(&id_phys->misc_drive_flags) >> 16) &
1682 PQI_DEVICE_NCQ_PRIO_SUPPORTED);
1683
2eddf98d
KB		 1684 device->erase_in_progress = !!(get_unaligned_le16(&id_phys->extra_physical_drive_flags) & PQI_DEVICE_ERASE_IN_PROGRESS);
1685
ce143793
KB		 1686 return 0;
1687}
1688
1689static int pqi_get_logical_device_info(struct pqi_ctrl_info *ctrl_info,
6c223761
KB		 1690 struct pqi_scsi_dev *device)
1691{
1692 int rc;
1693 u8 *buffer;
3d46a59a 1694
6c223761
KB		 1695 buffer = kmalloc(64, GFP_KERNEL);
1696 if (!buffer)
1697 return -ENOMEM;
1698
1699 /* Send an inquiry to the device to see what it is. */
ce143793
KB		 1700 rc = pqi_scsi_inquiry(ctrl_info, device->scsi3addr, 0, buffer, 64);
1701 if (rc)
1702 goto out;
6c223761
KB		 1703
1704 scsi_sanitize_inquiry_string(&buffer[8], 8);
1705 scsi_sanitize_inquiry_string(&buffer[16], 16);
1706
1707 device->devtype = buffer[0] & 0x1f;
cbe0c7b1
KB		 1708 memcpy(device->vendor, &buffer[8], sizeof(device->vendor));
1709 memcpy(device->model, &buffer[16], sizeof(device->model));
6c223761 1710
ce143793 1711 if (device->devtype == TYPE_DISK) {
bd10cf0b
KB		 1712 if (device->is_external_raid_device) {
1713 device->raid_level = SA_RAID_UNKNOWN;
1714 device->volume_status = CISS_LV_OK;
1715 device->volume_offline = false;
1716 } else {
1717 pqi_get_raid_level(ctrl_info, device);
588a63fe 1718 pqi_get_raid_bypass_status(ctrl_info, device);
bd10cf0b
KB		 1719 pqi_get_volume_status(ctrl_info, device);
1720 }
6c223761
KB		 1721 }
1722
1723out:
1724 kfree(buffer);
1725
1726 return rc;
1727}
1728
be76f906
DB		 1729/*
1730 * Prevent adding drive to OS for some corner cases such as a drive
2eddf98d 1731 * undergoing a sanitize (erase) operation. Some OSes will continue to poll
be76f906
DB		 1732 * the drive until the sanitize completes, which can take hours,
1733 * resulting in long bootup delays. Commands such as TUR, READ_CAP
1734 * are allowed, but READ/WRITE cause check condition. So the OS
1735 * cannot check/read the partition table.
1736 * Note: devices that have completed sanitize must be re-enabled
1737 * using the management utility.
1738 */
2eddf98d 1739static inline bool pqi_keep_device_offline(struct pqi_scsi_dev *device)
be76f906 1740{
2eddf98d 1741 return device->erase_in_progress;
be76f906
DB		 1742}
1743
cc9befcb 1744static int pqi_get_device_info_phys_logical(struct pqi_ctrl_info *ctrl_info,
6c223761
KB		 1745 struct pqi_scsi_dev *device,
1746 struct bmic_identify_physical_device *id_phys)
1747{
1748 int rc;
1749
ce143793
KB		 1750 if (device->is_expander_smp_device)
1751 return 0;
6c223761 1752
ce143793
KB		 1753 if (pqi_is_logical_device(device))
1754 rc = pqi_get_logical_device_info(ctrl_info, device);
1755 else
1756 rc = pqi_get_physical_device_info(ctrl_info, device, id_phys);
694c5d5b 1757
ce143793 1758 return rc;
6c223761
KB		 1759}
1760
cc9befcb
KM		 1761static int pqi_get_device_info(struct pqi_ctrl_info *ctrl_info,
1762 struct pqi_scsi_dev *device,
1763 struct bmic_identify_physical_device *id_phys)
1764{
1765 int rc;
1766
1767 rc = pqi_get_device_info_phys_logical(ctrl_info, device, id_phys);
1768
1769 if (rc == 0 && device->lun_count == 0)
1770 device->lun_count = 1;
1771
1772 return rc;
1773}
1774
6c223761
KB		 1775static void pqi_show_volume_status(struct pqi_ctrl_info *ctrl_info,
1776 struct pqi_scsi_dev *device)
1777{
1778 char *status;
1779 static const char unknown_state_str[] =
1780 "Volume is in an unknown state (%u)";
1781 char unknown_state_buffer[sizeof(unknown_state_str) + 10];
1782
1783 switch (device->volume_status) {
1784 case CISS_LV_OK:
1785 status = "Volume online";
1786 break;
1787 case CISS_LV_FAILED:
1788 status = "Volume failed";
1789 break;
1790 case CISS_LV_NOT_CONFIGURED:
1791 status = "Volume not configured";
1792 break;
1793 case CISS_LV_DEGRADED:
1794 status = "Volume degraded";
1795 break;
1796 case CISS_LV_READY_FOR_RECOVERY:
1797 status = "Volume ready for recovery operation";
1798 break;
1799 case CISS_LV_UNDERGOING_RECOVERY:
1800 status = "Volume undergoing recovery";
1801 break;
1802 case CISS_LV_WRONG_PHYSICAL_DRIVE_REPLACED:
1803 status = "Wrong physical drive was replaced";
1804 break;
1805 case CISS_LV_PHYSICAL_DRIVE_CONNECTION_PROBLEM:
1806 status = "A physical drive not properly connected";
1807 break;
1808 case CISS_LV_HARDWARE_OVERHEATING:
1809 status = "Hardware is overheating";
1810 break;
1811 case CISS_LV_HARDWARE_HAS_OVERHEATED:
1812 status = "Hardware has overheated";
1813 break;
1814 case CISS_LV_UNDERGOING_EXPANSION:
1815 status = "Volume undergoing expansion";
1816 break;
1817 case CISS_LV_NOT_AVAILABLE:
1818 status = "Volume waiting for transforming volume";
1819 break;
1820 case CISS_LV_QUEUED_FOR_EXPANSION:
1821 status = "Volume queued for expansion";
1822 break;
1823 case CISS_LV_DISABLED_SCSI_ID_CONFLICT:
1824 status = "Volume disabled due to SCSI ID conflict";
1825 break;
1826 case CISS_LV_EJECTED:
1827 status = "Volume has been ejected";
1828 break;
1829 case CISS_LV_UNDERGOING_ERASE:
1830 status = "Volume undergoing background erase";
1831 break;
1832 case CISS_LV_READY_FOR_PREDICTIVE_SPARE_REBUILD:
1833 status = "Volume ready for predictive spare rebuild";
1834 break;
1835 case CISS_LV_UNDERGOING_RPI:
1836 status = "Volume undergoing rapid parity initialization";
1837 break;
1838 case CISS_LV_PENDING_RPI:
1839 status = "Volume queued for rapid parity initialization";
1840 break;
1841 case CISS_LV_ENCRYPTED_NO_KEY:
1842 status = "Encrypted volume inaccessible - key not present";
1843 break;
1844 case CISS_LV_UNDERGOING_ENCRYPTION:
1845 status = "Volume undergoing encryption process";
1846 break;
1847 case CISS_LV_UNDERGOING_ENCRYPTION_REKEYING:
1848 status = "Volume undergoing encryption re-keying process";
1849 break;
1850 case CISS_LV_ENCRYPTED_IN_NON_ENCRYPTED_CONTROLLER:
d87d5474 1851 status = "Volume encrypted but encryption is disabled";
6c223761
KB		 1852 break;
1853 case CISS_LV_PENDING_ENCRYPTION:
1854 status = "Volume pending migration to encrypted state";
1855 break;
1856 case CISS_LV_PENDING_ENCRYPTION_REKEYING:
1857 status = "Volume pending encryption rekeying";
1858 break;
1859 case CISS_LV_NOT_SUPPORTED:
1860 status = "Volume not supported on this controller";
1861 break;
1862 case CISS_LV_STATUS_UNAVAILABLE:
1863 status = "Volume status not available";
1864 break;
1865 default:
1866 snprintf(unknown_state_buffer, sizeof(unknown_state_buffer),
1867 unknown_state_str, device->volume_status);
1868 status = unknown_state_buffer;
1869 break;
1870 }
1871
1872 dev_info(&ctrl_info->pci_dev->dev,
1873 "scsi %d:%d:%d:%d %s\n",
1874 ctrl_info->scsi_host->host_no,
1875 device->bus, device->target, device->lun, status);
1876}
1877
6c223761
KB		 1878static void pqi_rescan_worker(struct work_struct *work)
1879{
1880 struct pqi_ctrl_info *ctrl_info;
1881
1882 ctrl_info = container_of(to_delayed_work(work), struct pqi_ctrl_info,
1883 rescan_work);
1884
1885 pqi_scan_scsi_devices(ctrl_info);
1886}
1887
1888static int pqi_add_device(struct pqi_ctrl_info *ctrl_info,
1889 struct pqi_scsi_dev *device)
1890{
1891 int rc;
1892
1893 if (pqi_is_logical_device(device))
1894 rc = scsi_add_device(ctrl_info->scsi_host, device->bus,
1895 device->target, device->lun);
1896 else
1897 rc = pqi_add_sas_device(ctrl_info->sas_host, device);
1898
1899 return rc;
1900}
1901
18ff5f08 1902#define PQI_REMOVE_DEVICE_PENDING_IO_TIMEOUT_MSECS (20 * 1000)
1e46731e 1903
583891c9 1904static inline void pqi_remove_device(struct pqi_ctrl_info *ctrl_info, struct pqi_scsi_dev *device)
6c223761 1905{
1e46731e 1906 int rc;
904f2bfd 1907 int lun;
1e46731e 1908
cc9befcb 1909 for (lun = 0; lun < device->lun_count; lun++) {
904f2bfd
KM		 1910 rc = pqi_device_wait_for_pending_io(ctrl_info, device, lun,
1911 PQI_REMOVE_DEVICE_PENDING_IO_TIMEOUT_MSECS);
1912 if (rc)
1913 dev_err(&ctrl_info->pci_dev->dev,
1914 "scsi %d:%d:%d:%d removing device with %d outstanding command(s)\n",
1915 ctrl_info->scsi_host->host_no, device->bus,
1916 device->target, lun,
1917 atomic_read(&device->scsi_cmds_outstanding[lun]));
1918 }
1e46731e 1919
6c223761
KB		 1920 if (pqi_is_logical_device(device))
1921 scsi_remove_device(device->sdev);
1922 else
1923 pqi_remove_sas_device(device);
819225b0
DB		 1924
1925 pqi_device_remove_start(device);
6c223761
KB		 1926}
1927
1928/* Assumes the SCSI device list lock is held. */
1929
1930static struct pqi_scsi_dev *pqi_find_scsi_dev(struct pqi_ctrl_info *ctrl_info,
1931 int bus, int target, int lun)
1932{
1933 struct pqi_scsi_dev *device;
1934
4d15ad38
KB		 1935 list_for_each_entry(device, &ctrl_info->scsi_device_list, scsi_device_list_entry)
1936 if (device->bus == bus && device->target == target && device->lun == lun)
6c223761
KB		 1937 return device;
1938
1939 return NULL;
1940}
1941
583891c9 1942static inline bool pqi_device_equal(struct pqi_scsi_dev *dev1, struct pqi_scsi_dev *dev2)
6c223761
KB		 1943{
1944 if (dev1->is_physical_device != dev2->is_physical_device)
1945 return false;
1946
1947 if (dev1->is_physical_device)
28ca6d87 1948 return memcmp(dev1->wwid, dev2->wwid, sizeof(dev1->wwid)) == 0;
6c223761 1949
583891c9 1950 return memcmp(dev1->volume_id, dev2->volume_id, sizeof(dev1->volume_id)) == 0;
6c223761
KB		 1951}
1952
1953enum pqi_find_result {
1954 DEVICE_NOT_FOUND,
1955 DEVICE_CHANGED,
1956 DEVICE_SAME,
1957};
1958
1959static enum pqi_find_result pqi_scsi_find_entry(struct pqi_ctrl_info *ctrl_info,
4d15ad38 1960 struct pqi_scsi_dev *device_to_find, struct pqi_scsi_dev **matching_device)
6c223761
KB		 1961{
1962 struct pqi_scsi_dev *device;
1963
4d15ad38
KB		 1964 list_for_each_entry(device, &ctrl_info->scsi_device_list, scsi_device_list_entry) {
1965 if (pqi_scsi3addr_equal(device_to_find->scsi3addr, device->scsi3addr)) {
6c223761
KB		 1966 *matching_device = device;
1967 if (pqi_device_equal(device_to_find, device)) {
1968 if (device_to_find->volume_offline)
1969 return DEVICE_CHANGED;
1970 return DEVICE_SAME;
1971 }
1972 return DEVICE_CHANGED;
1973 }
1974 }
1975
1976 return DEVICE_NOT_FOUND;
1977}
1978
3d46a59a
DB		 1979static inline const char *pqi_device_type(struct pqi_scsi_dev *device)
1980{
1981 if (device->is_expander_smp_device)
1982 return "Enclosure SMP ";
1983
1984 return scsi_device_type(device->devtype);
1985}
1986
6de783f6
KB		 1987#define PQI_DEV_INFO_BUFFER_LENGTH 128
1988
6c223761
KB		 1989static void pqi_dev_info(struct pqi_ctrl_info *ctrl_info,
1990 char *action, struct pqi_scsi_dev *device)
1991{
6de783f6
KB		 1992 ssize_t count;
1993 char buffer[PQI_DEV_INFO_BUFFER_LENGTH];
1994
a4256252 1995 count = scnprintf(buffer, PQI_DEV_INFO_BUFFER_LENGTH,
6de783f6
KB		 1996 "%d:%d:", ctrl_info->scsi_host->host_no, device->bus);
1997
1998 if (device->target_lun_valid)
181aea89 1999 count += scnprintf(buffer + count,
6de783f6
KB		 2000 PQI_DEV_INFO_BUFFER_LENGTH - count,
2001 "%d:%d",
2002 device->target,
2003 device->lun);
2004 else
181aea89 2005 count += scnprintf(buffer + count,
6de783f6
KB		 2006 PQI_DEV_INFO_BUFFER_LENGTH - count,
2007 "-:-");
2008
2009 if (pqi_is_logical_device(device))
181aea89 2010 count += scnprintf(buffer + count,
6de783f6
KB		 2011 PQI_DEV_INFO_BUFFER_LENGTH - count,
2012 " %08x%08x",
2013 *((u32 *)&device->scsi3addr),
2014 *((u32 *)&device->scsi3addr[4]));
2015 else
181aea89 2016 count += scnprintf(buffer + count,
6de783f6 2017 PQI_DEV_INFO_BUFFER_LENGTH - count,
28ca6d87
MM		 2018 " %016llx%016llx",
2019 get_unaligned_be64(&device->wwid[0]),
2020 get_unaligned_be64(&device->wwid[8]));
6de783f6 2021
181aea89 2022 count += scnprintf(buffer + count, PQI_DEV_INFO_BUFFER_LENGTH - count,
6de783f6 2023 " %s %.8s %.16s ",
3d46a59a 2024 pqi_device_type(device),
6c223761 2025 device->vendor,
6de783f6
KB		 2026 device->model);
2027
2028 if (pqi_is_logical_device(device)) {
2029 if (device->devtype == TYPE_DISK)
181aea89 2030 count += scnprintf(buffer + count,
6de783f6
KB		 2031 PQI_DEV_INFO_BUFFER_LENGTH - count,
2032 "SSDSmartPathCap%c En%c %-12s",
588a63fe
KB		 2033 device->raid_bypass_configured ? '+' : '-',
2034 device->raid_bypass_enabled ? '+' : '-',
6de783f6
KB		 2035 pqi_raid_level_to_string(device->raid_level));
2036 } else {
181aea89 2037 count += scnprintf(buffer + count,
6de783f6
KB		 2038 PQI_DEV_INFO_BUFFER_LENGTH - count,
2039 "AIO%c", device->aio_enabled ? '+' : '-');
2040 if (device->devtype == TYPE_DISK ||
2041 device->devtype == TYPE_ZBC)
181aea89 2042 count += scnprintf(buffer + count,
6de783f6
KB		 2043 PQI_DEV_INFO_BUFFER_LENGTH - count,
2044 " qd=%-6d", device->queue_depth);
2045 }
2046
2047 dev_info(&ctrl_info->pci_dev->dev, "%s %s\n", action, buffer);
6c223761
KB		 2048}
2049
6ce3cfb3
KB		 2050static bool pqi_raid_maps_equal(struct raid_map *raid_map1, struct raid_map *raid_map2)
2051{
2052 u32 raid_map1_size;
2053 u32 raid_map2_size;
2054
2055 if (raid_map1 == NULL || raid_map2 == NULL)
2056 return raid_map1 == raid_map2;
2057
2058 raid_map1_size = get_unaligned_le32(&raid_map1->structure_size);
2059 raid_map2_size = get_unaligned_le32(&raid_map2->structure_size);
2060
2061 if (raid_map1_size != raid_map2_size)
2062 return false;
2063
2064 return memcmp(raid_map1, raid_map2, raid_map1_size) == 0;
2065}
2066
6c223761
KB		 2067/* Assumes the SCSI device list lock is held. */
2068
27655e9d
MR		 2069static void pqi_scsi_update_device(struct pqi_ctrl_info *ctrl_info,
2070 struct pqi_scsi_dev *existing_device, struct pqi_scsi_dev *new_device)
6c223761 2071{
6c223761
KB		 2072 existing_device->device_type = new_device->device_type;
2073 existing_device->bus = new_device->bus;
2074 if (new_device->target_lun_valid) {
2075 existing_device->target = new_device->target;
2076 existing_device->lun = new_device->lun;
2077 existing_device->target_lun_valid = true;
2078 }
2079
2080 /* By definition, the scsi3addr and wwid fields are already the same. */
2081
2082 existing_device->is_physical_device = new_device->is_physical_device;
6ce3cfb3
KB		 2083 memcpy(existing_device->vendor, new_device->vendor, sizeof(existing_device->vendor));
2084 memcpy(existing_device->model, new_device->model, sizeof(existing_device->model));
6c223761 2085 existing_device->sas_address = new_device->sas_address;
6c223761 2086 existing_device->queue_depth = new_device->queue_depth;
a9a68101 2087 existing_device->device_offline = false;
cc9befcb 2088 existing_device->lun_count = new_device->lun_count;
6c223761 2089
6ce3cfb3
KB		 2090 if (pqi_is_logical_device(existing_device)) {
2091 existing_device->is_external_raid_device = new_device->is_external_raid_device;
2092
2093 if (existing_device->devtype == TYPE_DISK) {
2094 existing_device->raid_level = new_device->raid_level;
2095 existing_device->volume_status = new_device->volume_status;
6ce3cfb3
KB		 2096 memset(existing_device->next_bypass_group, 0, sizeof(existing_device->next_bypass_group));
2097 if (!pqi_raid_maps_equal(existing_device->raid_map, new_device->raid_map)) {
2098 kfree(existing_device->raid_map);
2099 existing_device->raid_map = new_device->raid_map;
2100 /* To prevent this from being freed later. */
2101 new_device->raid_map = NULL;
2102 }
2103 existing_device->raid_bypass_configured = new_device->raid_bypass_configured;
2104 existing_device->raid_bypass_enabled = new_device->raid_bypass_enabled;
2105 }
2106 } else {
2107 existing_device->aio_enabled = new_device->aio_enabled;
2108 existing_device->aio_handle = new_device->aio_handle;
2109 existing_device->is_expander_smp_device = new_device->is_expander_smp_device;
2110 existing_device->active_path_index = new_device->active_path_index;
2111 existing_device->phy_id = new_device->phy_id;
2112 existing_device->path_map = new_device->path_map;
2113 existing_device->bay = new_device->bay;
2114 existing_device->box_index = new_device->box_index;
2115 existing_device->phys_box_on_bus = new_device->phys_box_on_bus;
2116 existing_device->phy_connected_dev_type = new_device->phy_connected_dev_type;
2117 memcpy(existing_device->box, new_device->box, sizeof(existing_device->box));
2118 memcpy(existing_device->phys_connector, new_device->phys_connector, sizeof(existing_device->phys_connector));
6ce3cfb3 2119 }
6c223761
KB		 2120}
2121
2122static inline void pqi_free_device(struct pqi_scsi_dev *device)
2123{
2124 if (device) {
2125 kfree(device->raid_map);
2126 kfree(device);
2127 }
2128}
2129
2130/*
2131 * Called when exposing a new device to the OS fails in order to re-adjust
2132 * our internal SCSI device list to match the SCSI ML's view.
2133 */
2134
2135static inline void pqi_fixup_botched_add(struct pqi_ctrl_info *ctrl_info,
2136 struct pqi_scsi_dev *device)
2137{
2138 unsigned long flags;
2139
2140 spin_lock_irqsave(&ctrl_info->scsi_device_list_lock, flags);
2141 list_del(&device->scsi_device_list_entry);
2142 spin_unlock_irqrestore(&ctrl_info->scsi_device_list_lock, flags);
2143
2144 /* Allow the device structure to be freed later. */
2145 device->keep_device = false;
2146}
2147
3d46a59a
DB		 2148static inline bool pqi_is_device_added(struct pqi_scsi_dev *device)
2149{
2150 if (device->is_expander_smp_device)
2151 return device->sas_port != NULL;
2152
2153 return device->sdev != NULL;
2154}
2155
153c45dd
KB		 2156static inline void pqi_init_device_tmf_work(struct pqi_scsi_dev *device)
2157{
2158 unsigned int lun;
2159 struct pqi_tmf_work *tmf_work;
2160
2161 for (lun = 0, tmf_work = device->tmf_work; lun < PQI_MAX_LUNS_PER_DEVICE; lun++, tmf_work++)
2162 INIT_WORK(&tmf_work->work_struct, pqi_tmf_worker);
2163}
2164
fb4cece1
MR		 2165static inline bool pqi_volume_rescan_needed(struct pqi_scsi_dev *device)
2166{
2167 if (pqi_device_in_remove(device))
2168 return false;
2169
2170 if (device->sdev == NULL)
2171 return false;
2172
2173 if (!scsi_device_online(device->sdev))
2174 return false;
2175
2176 return device->rescan;
2177}
2178
6c223761
KB		 2179static void pqi_update_device_list(struct pqi_ctrl_info *ctrl_info,
2180 struct pqi_scsi_dev *new_device_list[], unsigned int num_new_devices)
2181{
2182 int rc;
2183 unsigned int i;
2184 unsigned long flags;
2185 enum pqi_find_result find_result;
2186 struct pqi_scsi_dev *device;
2187 struct pqi_scsi_dev *next;
2188 struct pqi_scsi_dev *matching_device;
8a994a04
KB		 2189 LIST_HEAD(add_list);
2190 LIST_HEAD(delete_list);
6c223761
KB		 2191
2192 /*
2193 * The idea here is to do as little work as possible while holding the
2194 * spinlock. That's why we go to great pains to defer anything other
2195 * than updating the internal device list until after we release the
2196 * spinlock.
2197 */
2198
2199 spin_lock_irqsave(&ctrl_info->scsi_device_list_lock, flags);
2200
2201 /* Assume that all devices in the existing list have gone away. */
4d15ad38 2202 list_for_each_entry(device, &ctrl_info->scsi_device_list, scsi_device_list_entry)
6c223761
KB		 2203 device->device_gone = true;
2204
2205 for (i = 0; i < num_new_devices; i++) {
2206 device = new_device_list[i];
2207
2208 find_result = pqi_scsi_find_entry(ctrl_info, device,
694c5d5b 2209 &matching_device);
6c223761
KB		 2210
2211 switch (find_result) {
2212 case DEVICE_SAME:
2213 /*
2214 * The newly found device is already in the existing
2215 * device list.
2216 */
2217 device->new_device = false;
2218 matching_device->device_gone = false;
27655e9d 2219 pqi_scsi_update_device(ctrl_info, matching_device, device);
6c223761
KB		 2220 break;
2221 case DEVICE_NOT_FOUND:
2222 /*
2223 * The newly found device is NOT in the existing device
2224 * list.
2225 */
2226 device->new_device = true;
2227 break;
2228 case DEVICE_CHANGED:
2229 /*
2230 * The original device has gone away and we need to add
2231 * the new device.
2232 */
2233 device->new_device = true;
2234 break;
6c223761
KB		 2235 }
2236 }
2237
2238 /* Process all devices that have gone away. */
2239 list_for_each_entry_safe(device, next, &ctrl_info->scsi_device_list,
2240 scsi_device_list_entry) {
2241 if (device->device_gone) {
819225b0 2242 list_del(&device->scsi_device_list_entry);
6c223761
KB		 2243 list_add_tail(&device->delete_list_entry, &delete_list);
2244 }
2245 }
2246
2247 /* Process all new devices. */
2248 for (i = 0; i < num_new_devices; i++) {
2249 device = new_device_list[i];
2250 if (!device->new_device)
2251 continue;
2252 if (device->volume_offline)
2253 continue;
2254 list_add_tail(&device->scsi_device_list_entry,
2255 &ctrl_info->scsi_device_list);
2256 list_add_tail(&device->add_list_entry, &add_list);
2257 /* To prevent this device structure from being freed later. */
2258 device->keep_device = true;
153c45dd 2259 pqi_init_device_tmf_work(device);
6c223761
KB		 2260 }
2261
6c223761
KB		 2262 spin_unlock_irqrestore(&ctrl_info->scsi_device_list_lock, flags);
2263
2790cd4d
KB		 2264 /*
2265 * If OFA is in progress and there are devices that need to be deleted,
2266 * allow any pending reset operations to continue and unblock any SCSI
2267 * requests before removal.
2268 */
2269 if (pqi_ofa_in_progress(ctrl_info)) {
2270 list_for_each_entry_safe(device, next, &delete_list, delete_list_entry)
2271 if (pqi_is_device_added(device))
2272 pqi_device_remove_start(device);
2273 pqi_ctrl_unblock_device_reset(ctrl_info);
2274 pqi_scsi_unblock_requests(ctrl_info);
2275 }
4fd22c13 2276
6c223761 2277 /* Remove all devices that have gone away. */
4d15ad38 2278 list_for_each_entry_safe(device, next, &delete_list, delete_list_entry) {
6c223761
KB		 2279 if (device->volume_offline) {
2280 pqi_dev_info(ctrl_info, "offline", device);
2281 pqi_show_volume_status(ctrl_info, device);
4d15ad38 2282 } else {
819225b0 2283 pqi_dev_info(ctrl_info, "removed", device);
4d15ad38 2284 }
819225b0
DB		 2285 if (pqi_is_device_added(device))
2286 pqi_remove_device(ctrl_info, device);
2287 list_del(&device->delete_list_entry);
2288 pqi_free_device(device);
6c223761
KB		 2289 }
2290
2291 /*
27655e9d
MR		 2292 * Notify the SML of any existing device changes such as;
2293 * queue depth, device size.
6c223761 2294 */
583891c9
KB		 2295 list_for_each_entry(device, &ctrl_info->scsi_device_list, scsi_device_list_entry) {
2296 if (device->sdev && device->queue_depth != device->advertised_queue_depth) {
2297 device->advertised_queue_depth = device->queue_depth;
2298 scsi_change_queue_depth(device->sdev, device->advertised_queue_depth);
fb4cece1
MR		 2299 spin_lock_irqsave(&ctrl_info->scsi_device_list_lock, flags);
2300 if (pqi_volume_rescan_needed(device)) {
244ca45e 2301 device->rescan = false;
fb4cece1
MR		 2302 spin_unlock_irqrestore(&ctrl_info->scsi_device_list_lock, flags);
2303 scsi_rescan_device(device->sdev);
2304 } else {
2305 spin_unlock_irqrestore(&ctrl_info->scsi_device_list_lock, flags);
244ca45e 2306 }
6c223761
KB		 2307 }
2308 }
2309
2310 /* Expose any new devices. */
2311 list_for_each_entry_safe(device, next, &add_list, add_list_entry) {
3d46a59a 2312 if (!pqi_is_device_added(device)) {
6c223761 2313 rc = pqi_add_device(ctrl_info, device);
ce143793
KB		 2314 if (rc == 0) {
2315 pqi_dev_info(ctrl_info, "added", device);
2316 } else {
6c223761
KB		 2317 dev_warn(&ctrl_info->pci_dev->dev,
2318 "scsi %d:%d:%d:%d addition failed, device not added\n",
2319 ctrl_info->scsi_host->host_no,
2320 device->bus, device->target,
2321 device->lun);
2322 pqi_fixup_botched_add(ctrl_info, device);
6c223761
KB		 2323 }
2324 }
6c223761 2325 }
27655e9d 2326
6c223761
KB		 2327}
2328
ce143793 2329static inline bool pqi_is_supported_device(struct pqi_scsi_dev *device)
6c223761 2330{
ce143793
KB		 2331 /*
2332 * Only support the HBA controller itself as a RAID
2333 * controller. If it's a RAID controller other than
2334 * the HBA itself (an external RAID controller, for
2335 * example), we don't support it.
2336 */
2337 if (device->device_type == SA_DEVICE_TYPE_CONTROLLER &&
2338 !pqi_is_hba_lunid(device->scsi3addr))
583891c9 2339 return false;
6c223761 2340
ce143793 2341 return true;
6c223761
KB		 2342}
2343
94086f5b 2344static inline bool pqi_skip_device(u8 *scsi3addr)
6c223761 2345{
94086f5b
KB		 2346 /* Ignore all masked devices. */
2347 if (MASKED_DEVICE(scsi3addr))
6c223761 2348 return true;
6c223761
KB		 2349
2350 return false;
2351}
2352
522bc026
DC		 2353static inline void pqi_mask_device(u8 *scsi3addr)
2354{
2355 scsi3addr[3] |= 0xc0;
2356}
2357
94a68c81
MB		 2358static inline bool pqi_is_multipath_device(struct pqi_scsi_dev *device)
2359{
2360 if (pqi_is_logical_device(device))
2361 return false;
2362
2363 return (device->path_map & (device->path_map - 1)) != 0;
2364}
2365
cd128244
DC		 2366static inline bool pqi_expose_device(struct pqi_scsi_dev *device)
2367{
583891c9 2368 return !device->is_physical_device || !pqi_skip_device(device->scsi3addr);
cd128244
DC		 2369}
2370
6c223761
KB		 2371static int pqi_update_scsi_devices(struct pqi_ctrl_info *ctrl_info)
2372{
2373 int i;
2374 int rc;
8a994a04 2375 LIST_HEAD(new_device_list_head);
28ca6d87
MM		 2376 struct report_phys_lun_16byte_wwid_list *physdev_list = NULL;
2377 struct report_log_lun_list *logdev_list = NULL;
2378 struct report_phys_lun_16byte_wwid *phys_lun;
2379 struct report_log_lun *log_lun;
6c223761
KB		 2380 struct bmic_identify_physical_device *id_phys = NULL;
2381 u32 num_physicals;
2382 u32 num_logicals;
2383 struct pqi_scsi_dev **new_device_list = NULL;
2384 struct pqi_scsi_dev *device;
2385 struct pqi_scsi_dev *next;
2386 unsigned int num_new_devices;
2387 unsigned int num_valid_devices;
2388 bool is_physical_device;
2389 u8 *scsi3addr;
5e6a9760
GW		 2390 unsigned int physical_index;
2391 unsigned int logical_index;
6c223761 2392 static char *out_of_memory_msg =
6de783f6 2393 "failed to allocate memory, device discovery stopped";
6c223761 2394
6c223761
KB		 2395 rc = pqi_get_device_lists(ctrl_info, &physdev_list, &logdev_list);
2396 if (rc)
2397 goto out;
2398
2399 if (physdev_list)
2400 num_physicals =
2401 get_unaligned_be32(&physdev_list->header.list_length)
2402 / sizeof(physdev_list->lun_entries[0]);
2403 else
2404 num_physicals = 0;
2405
2406 if (logdev_list)
2407 num_logicals =
2408 get_unaligned_be32(&logdev_list->header.list_length)
2409 / sizeof(logdev_list->lun_entries[0]);
2410 else
2411 num_logicals = 0;
2412
2413 if (num_physicals) {
2414 /*
2415 * We need this buffer for calls to pqi_get_physical_disk_info()
2416 * below. We allocate it here instead of inside
2417 * pqi_get_physical_disk_info() because it's a fairly large
2418 * buffer.
2419 */
2420 id_phys = kmalloc(sizeof(*id_phys), GFP_KERNEL);
2421 if (!id_phys) {
2422 dev_warn(&ctrl_info->pci_dev->dev, "%s\n",
2423 out_of_memory_msg);
2424 rc = -ENOMEM;
2425 goto out;
2426 }
522bc026 2427
694c5d5b 2428 if (pqi_hide_vsep) {
522bc026 2429 for (i = num_physicals - 1; i >= 0; i--) {
28ca6d87
MM		 2430 phys_lun = &physdev_list->lun_entries[i];
2431 if (CISS_GET_DRIVE_NUMBER(phys_lun->lunid) == PQI_VSEP_CISS_BTL) {
2432 pqi_mask_device(phys_lun->lunid);
522bc026
DC		 2433 break;
2434 }
2435 }
2436 }
6c223761
KB		 2437 }
2438
f6cc2a77
KB		 2439 if (num_logicals &&
2440 (logdev_list->header.flags & CISS_REPORT_LOG_FLAG_DRIVE_TYPE_MIX))
2441 ctrl_info->lv_drive_type_mix_valid = true;
2442
6c223761
KB		 2443 num_new_devices = num_physicals + num_logicals;
2444
6da2ec56
KC		 2445 new_device_list = kmalloc_array(num_new_devices,
2446 sizeof(*new_device_list),
2447 GFP_KERNEL);
6c223761
KB		 2448 if (!new_device_list) {
2449 dev_warn(&ctrl_info->pci_dev->dev, "%s\n", out_of_memory_msg);
2450 rc = -ENOMEM;
2451 goto out;
2452 }
2453
2454 for (i = 0; i < num_new_devices; i++) {
2455 device = kzalloc(sizeof(*device), GFP_KERNEL);
2456 if (!device) {
2457 dev_warn(&ctrl_info->pci_dev->dev, "%s\n",
2458 out_of_memory_msg);
2459 rc = -ENOMEM;
2460 goto out;
2461 }
2462 list_add_tail(&device->new_device_list_entry,
2463 &new_device_list_head);
2464 }
2465
2466 device = NULL;
2467 num_valid_devices = 0;
5e6a9760
GW		 2468 physical_index = 0;
2469 logical_index = 0;
6c223761
KB		 2470
2471 for (i = 0; i < num_new_devices; i++) {
2472
5e6a9760
GW		 2473 if ((!pqi_expose_ld_first && i < num_physicals) ||
2474 (pqi_expose_ld_first && i >= num_logicals)) {
6c223761 2475 is_physical_device = true;
28ca6d87
MM		 2476 phys_lun = &physdev_list->lun_entries[physical_index++];
2477 log_lun = NULL;
2478 scsi3addr = phys_lun->lunid;
6c223761
KB		 2479 } else {
2480 is_physical_device = false;
28ca6d87
MM		 2481 phys_lun = NULL;
2482 log_lun = &logdev_list->lun_entries[logical_index++];
2483 scsi3addr = log_lun->lunid;
6c223761
KB		 2484 }
2485
94086f5b 2486 if (is_physical_device && pqi_skip_device(scsi3addr))
6c223761
KB		 2487 continue;
2488
2489 if (device)
2490 device = list_next_entry(device, new_device_list_entry);
2491 else
2492 device = list_first_entry(&new_device_list_head,
2493 struct pqi_scsi_dev, new_device_list_entry);
2494
2495 memcpy(device->scsi3addr, scsi3addr, sizeof(device->scsi3addr));
2496 device->is_physical_device = is_physical_device;
3d46a59a 2497 if (is_physical_device) {
28ca6d87 2498 device->device_type = phys_lun->device_type;
ce143793 2499 if (device->device_type == SA_DEVICE_TYPE_EXPANDER_SMP)
3d46a59a
DB		 2500 device->is_expander_smp_device = true;
2501 } else {
bd10cf0b
KB		 2502 device->is_external_raid_device =
2503 pqi_is_external_raid_addr(scsi3addr);
3d46a59a 2504 }
6c223761 2505
ce143793
KB		 2506 if (!pqi_is_supported_device(device))
2507 continue;
2508
6c223761 2509 /* Gather information about the device. */
ce143793 2510 rc = pqi_get_device_info(ctrl_info, device, id_phys);
6c223761
KB		 2511 if (rc == -ENOMEM) {
2512 dev_warn(&ctrl_info->pci_dev->dev, "%s\n",
2513 out_of_memory_msg);
2514 goto out;
2515 }
2516 if (rc) {
6de783f6
KB		 2517 if (device->is_physical_device)
2518 dev_warn(&ctrl_info->pci_dev->dev,
28ca6d87
MM		 2519 "obtaining device info failed, skipping physical device %016llx%016llx\n",
2520 get_unaligned_be64(&phys_lun->wwid[0]),
2521 get_unaligned_be64(&phys_lun->wwid[8]));
6de783f6
KB		 2522 else
2523 dev_warn(&ctrl_info->pci_dev->dev,
2524 "obtaining device info failed, skipping logical device %08x%08x\n",
2525 *((u32 *)&device->scsi3addr),
2526 *((u32 *)&device->scsi3addr[4]));
6c223761
KB		 2527 rc = 0;
2528 continue;
2529 }
2530
2eddf98d
KB		 2531 /* Do not present disks that the OS cannot fully probe. */
2532 if (pqi_keep_device_offline(device))
2533 continue;
2534
6c223761
KB		 2535 pqi_assign_bus_target_lun(device);
2536
6c223761 2537 if (device->is_physical_device) {
00598b05 2538 memcpy(device->wwid, phys_lun->wwid, sizeof(device->wwid));
28ca6d87 2539 if ((phys_lun->device_flags &
694c5d5b 2540 CISS_REPORT_PHYS_DEV_FLAG_AIO_ENABLED) &&
28ca6d87 2541 phys_lun->aio_handle) {
583891c9
KB		 2542 device->aio_enabled = true;
2543 device->aio_handle =
28ca6d87 2544 phys_lun->aio_handle;
3d46a59a 2545 }
6c223761 2546 } else {
28ca6d87 2547 memcpy(device->volume_id, log_lun->volume_id,
6c223761
KB		 2548 sizeof(device->volume_id));
2549 }
2550
291c2e00 2551 device->sas_address = get_unaligned_be64(&device->wwid[0]);
6c223761
KB		 2552
2553 new_device_list[num_valid_devices++] = device;
2554 }
2555
2556 pqi_update_device_list(ctrl_info, new_device_list, num_valid_devices);
2557
2558out:
2559 list_for_each_entry_safe(device, next, &new_device_list_head,
2560 new_device_list_entry) {
2561 if (device->keep_device)
2562 continue;
2563 list_del(&device->new_device_list_entry);
2564 pqi_free_device(device);
2565 }
2566
2567 kfree(new_device_list);
2568 kfree(physdev_list);
2569 kfree(logdev_list);
2570 kfree(id_phys);
2571
2572 return rc;
2573}
2574
6c223761
KB		 2575static int pqi_scan_scsi_devices(struct pqi_ctrl_info *ctrl_info)
2576{
66f1c2b4
KB		 2577 int rc;
2578 int mutex_acquired;
6c223761
KB		 2579
2580 if (pqi_ctrl_offline(ctrl_info))
2581 return -ENXIO;
2582
66f1c2b4
KB		 2583 mutex_acquired = mutex_trylock(&ctrl_info->scan_mutex);
2584
2585 if (!mutex_acquired) {
2586 if (pqi_ctrl_scan_blocked(ctrl_info))
2587 return -EBUSY;
5f310425 2588 pqi_schedule_rescan_worker_delayed(ctrl_info);
66f1c2b4 2589 return -EINPROGRESS;
530dd8a7 2590 }
6c223761 2591
66f1c2b4
KB		 2592 rc = pqi_update_scsi_devices(ctrl_info);
2593 if (rc && !pqi_ctrl_scan_blocked(ctrl_info))
2594 pqi_schedule_rescan_worker_delayed(ctrl_info);
2595
2596 mutex_unlock(&ctrl_info->scan_mutex);
2597
6c223761
KB		 2598 return rc;
2599}
2600
2601static void pqi_scan_start(struct Scsi_Host *shost)
2602{
4fd22c13
MR		 2603 struct pqi_ctrl_info *ctrl_info;
2604
2605 ctrl_info = shost_to_hba(shost);
4fd22c13
MR		 2606
2607 pqi_scan_scsi_devices(ctrl_info);
6c223761
KB		 2608}
2609
2610/* Returns TRUE if scan is finished. */
2611
2612static int pqi_scan_finished(struct Scsi_Host *shost,
2613 unsigned long elapsed_time)
2614{
2615 struct pqi_ctrl_info *ctrl_info;
2616
2617 ctrl_info = shost_priv(shost);
2618
2619 return !mutex_is_locked(&ctrl_info->scan_mutex);
2620}
2621
583891c9
KB		 2622static inline void pqi_set_encryption_info(struct pqi_encryption_info *encryption_info,
2623 struct raid_map *raid_map, u64 first_block)
6c223761
KB		 2624{
2625 u32 volume_blk_size;
2626
2627 /*
2628 * Set the encryption tweak values based on logical block address.
2629 * If the block size is 512, the tweak value is equal to the LBA.
2630 * For other block sizes, tweak value is (LBA * block size) / 512.
2631 */
2632 volume_blk_size = get_unaligned_le32(&raid_map->volume_blk_size);
2633 if (volume_blk_size != 512)
2634 first_block = (first_block * volume_blk_size) / 512;
2635
2636 encryption_info->data_encryption_key_index =
2637 get_unaligned_le16(&raid_map->data_encryption_key_index);
2638 encryption_info->encrypt_tweak_lower = lower_32_bits(first_block);
2639 encryption_info->encrypt_tweak_upper = upper_32_bits(first_block);
2640}
2641
2642/*
588a63fe 2643 * Attempt to perform RAID bypass mapping for a logical volume I/O.
6c223761
KB		 2644 */
2645
6702d2c4
DB		 2646static bool pqi_aio_raid_level_supported(struct pqi_ctrl_info *ctrl_info,
2647 struct pqi_scsi_dev_raid_map_data *rmd)
281a817f
DB		 2648{
2649 bool is_supported = true;
2650
2651 switch (rmd->raid_level) {
2652 case SA_RAID_0:
2653 break;
2654 case SA_RAID_1:
f6cc2a77
KB		 2655 if (rmd->is_write && (!ctrl_info->enable_r1_writes ||
2656 rmd->data_length > ctrl_info->max_write_raid_1_10_2drive))
2657 is_supported = false;
2658 break;
7a012c23 2659 case SA_RAID_TRIPLE:
f6cc2a77
KB		 2660 if (rmd->is_write && (!ctrl_info->enable_r1_writes ||
2661 rmd->data_length > ctrl_info->max_write_raid_1_10_3drive))
281a817f
DB		 2662 is_supported = false;
2663 break;
2664 case SA_RAID_5:
f6cc2a77
KB		 2665 if (rmd->is_write && (!ctrl_info->enable_r5_writes ||
2666 rmd->data_length > ctrl_info->max_write_raid_5_6))
6702d2c4
DB		 2667 is_supported = false;
2668 break;
281a817f 2669 case SA_RAID_6:
f6cc2a77
KB		 2670 if (rmd->is_write && (!ctrl_info->enable_r6_writes ||
2671 rmd->data_length > ctrl_info->max_write_raid_5_6))
281a817f
DB		 2672 is_supported = false;
2673 break;
281a817f
DB		 2674 default:
2675 is_supported = false;
f6cc2a77 2676 break;
281a817f
DB		 2677 }
2678
2679 return is_supported;
2680}
2681
6c223761
KB		 2682#define PQI_RAID_BYPASS_INELIGIBLE 1
2683
281a817f 2684static int pqi_get_aio_lba_and_block_count(struct scsi_cmnd *scmd,
583891c9 2685 struct pqi_scsi_dev_raid_map_data *rmd)
6c223761 2686{
6c223761
KB		 2687 /* Check for valid opcode, get LBA and block count. */
2688 switch (scmd->cmnd[0]) {
2689 case WRITE_6:
281a817f 2690 rmd->is_write = true;
df561f66 2691 fallthrough;
6c223761 2692 case READ_6:
281a817f 2693 rmd->first_block = (u64)(((scmd->cmnd[1] & 0x1f) << 16) |
e018ef57 2694 (scmd->cmnd[2] << 8) | scmd->cmnd[3]);
281a817f
DB		 2695 rmd->block_cnt = (u32)scmd->cmnd[4];
2696 if (rmd->block_cnt == 0)
2697 rmd->block_cnt = 256;
6c223761
KB		 2698 break;
2699 case WRITE_10:
281a817f 2700 rmd->is_write = true;
df561f66 2701 fallthrough;
6c223761 2702 case READ_10:
281a817f
DB		 2703 rmd->first_block = (u64)get_unaligned_be32(&scmd->cmnd[2]);
2704 rmd->block_cnt = (u32)get_unaligned_be16(&scmd->cmnd[7]);
6c223761
KB		 2705 break;
2706 case WRITE_12:
281a817f 2707 rmd->is_write = true;
df561f66 2708 fallthrough;
6c223761 2709 case READ_12:
281a817f
DB		 2710 rmd->first_block = (u64)get_unaligned_be32(&scmd->cmnd[2]);
2711 rmd->block_cnt = get_unaligned_be32(&scmd->cmnd[6]);
6c223761
KB		 2712 break;
2713 case WRITE_16:
281a817f 2714 rmd->is_write = true;
df561f66 2715 fallthrough;
6c223761 2716 case READ_16:
281a817f
DB		 2717 rmd->first_block = get_unaligned_be64(&scmd->cmnd[2]);
2718 rmd->block_cnt = get_unaligned_be32(&scmd->cmnd[10]);
6c223761
KB		 2719 break;
2720 default:
2721 /* Process via normal I/O path. */
2722 return PQI_RAID_BYPASS_INELIGIBLE;
2723 }
2724
281a817f 2725 put_unaligned_le32(scsi_bufflen(scmd), &rmd->data_length);
6c223761 2726
281a817f
DB		 2727 return 0;
2728}
6c223761 2729
281a817f 2730static int pci_get_aio_common_raid_map_values(struct pqi_ctrl_info *ctrl_info,
583891c9 2731 struct pqi_scsi_dev_raid_map_data *rmd, struct raid_map *raid_map)
281a817f
DB		 2732{
2733#if BITS_PER_LONG == 32
2734 u64 tmpdiv;
2735#endif
2736
2737 rmd->last_block = rmd->first_block + rmd->block_cnt - 1;
6c223761
KB		 2738
2739 /* Check for invalid block or wraparound. */
281a817f
DB		 2740 if (rmd->last_block >=
2741 get_unaligned_le64(&raid_map->volume_blk_cnt) ||
2742 rmd->last_block < rmd->first_block)
6c223761
KB		 2743 return PQI_RAID_BYPASS_INELIGIBLE;
2744
281a817f 2745 rmd->data_disks_per_row =
583891c9 2746 get_unaligned_le16(&raid_map->data_disks_per_row);
281a817f
DB		 2747 rmd->strip_size = get_unaligned_le16(&raid_map->strip_size);
2748 rmd->layout_map_count = get_unaligned_le16(&raid_map->layout_map_count);
6c223761
KB		 2749
2750 /* Calculate stripe information for the request. */
281a817f 2751 rmd->blocks_per_row = rmd->data_disks_per_row * rmd->strip_size;
667298ce
DB		 2752 if (rmd->blocks_per_row == 0) /* Used as a divisor in many calculations */
2753 return PQI_RAID_BYPASS_INELIGIBLE;
6c223761 2754#if BITS_PER_LONG == 32
281a817f
DB		 2755 tmpdiv = rmd->first_block;
2756 do_div(tmpdiv, rmd->blocks_per_row);
2757 rmd->first_row = tmpdiv;
2758 tmpdiv = rmd->last_block;
2759 do_div(tmpdiv, rmd->blocks_per_row);
2760 rmd->last_row = tmpdiv;
2761 rmd->first_row_offset = (u32)(rmd->first_block - (rmd->first_row * rmd->blocks_per_row));
2762 rmd->last_row_offset = (u32)(rmd->last_block - (rmd->last_row * rmd->blocks_per_row));
2763 tmpdiv = rmd->first_row_offset;
2764 do_div(tmpdiv, rmd->strip_size);
2765 rmd->first_column = tmpdiv;
2766 tmpdiv = rmd->last_row_offset;
2767 do_div(tmpdiv, rmd->strip_size);
2768 rmd->last_column = tmpdiv;
6c223761 2769#else
281a817f
DB		 2770 rmd->first_row = rmd->first_block / rmd->blocks_per_row;
2771 rmd->last_row = rmd->last_block / rmd->blocks_per_row;
2772 rmd->first_row_offset = (u32)(rmd->first_block -
583891c9 2773 (rmd->first_row * rmd->blocks_per_row));
281a817f 2774 rmd->last_row_offset = (u32)(rmd->last_block - (rmd->last_row *
583891c9 2775 rmd->blocks_per_row));
281a817f
DB		 2776 rmd->first_column = rmd->first_row_offset / rmd->strip_size;
2777 rmd->last_column = rmd->last_row_offset / rmd->strip_size;
6c223761
KB		 2778#endif
2779
2780 /* If this isn't a single row/column then give to the controller. */
281a817f 2781 if (rmd->first_row != rmd->last_row ||
583891c9 2782 rmd->first_column != rmd->last_column)
6c223761
KB		 2783 return PQI_RAID_BYPASS_INELIGIBLE;
2784
2785 /* Proceeding with driver mapping. */
281a817f 2786 rmd->total_disks_per_row = rmd->data_disks_per_row +
6c223761 2787 get_unaligned_le16(&raid_map->metadata_disks_per_row);
281a817f
DB		 2788 rmd->map_row = ((u32)(rmd->first_row >>
2789 raid_map->parity_rotation_shift)) %
6c223761 2790 get_unaligned_le16(&raid_map->row_cnt);
281a817f 2791 rmd->map_index = (rmd->map_row * rmd->total_disks_per_row) +
583891c9 2792 rmd->first_column;
6c223761 2793
281a817f
DB		 2794 return 0;
2795}
6c223761 2796
281a817f 2797static int pqi_calc_aio_r5_or_r6(struct pqi_scsi_dev_raid_map_data *rmd,
583891c9 2798 struct raid_map *raid_map)
281a817f 2799{
6c223761 2800#if BITS_PER_LONG == 32
281a817f 2801 u64 tmpdiv;
6c223761 2802#endif
6c223761 2803
667298ce
DB		 2804 if (rmd->blocks_per_row == 0) /* Used as a divisor in many calculations */
2805 return PQI_RAID_BYPASS_INELIGIBLE;
2806
281a817f 2807 /* RAID 50/60 */
583891c9 2808 /* Verify first and last block are in same RAID group. */
281a817f 2809 rmd->stripesize = rmd->blocks_per_row * rmd->layout_map_count;
6c223761 2810#if BITS_PER_LONG == 32
281a817f
DB		 2811 tmpdiv = rmd->first_block;
2812 rmd->first_group = do_div(tmpdiv, rmd->stripesize);
2813 tmpdiv = rmd->first_group;
2814 do_div(tmpdiv, rmd->blocks_per_row);
2815 rmd->first_group = tmpdiv;
2816 tmpdiv = rmd->last_block;
2817 rmd->last_group = do_div(tmpdiv, rmd->stripesize);
2818 tmpdiv = rmd->last_group;
2819 do_div(tmpdiv, rmd->blocks_per_row);
2820 rmd->last_group = tmpdiv;
6c223761 2821#else
281a817f
DB		 2822 rmd->first_group = (rmd->first_block % rmd->stripesize) / rmd->blocks_per_row;
2823 rmd->last_group = (rmd->last_block % rmd->stripesize) / rmd->blocks_per_row;
6c223761 2824#endif
281a817f
DB		 2825 if (rmd->first_group != rmd->last_group)
2826 return PQI_RAID_BYPASS_INELIGIBLE;
6c223761 2827
583891c9 2828 /* Verify request is in a single row of RAID 5/6. */
6c223761 2829#if BITS_PER_LONG == 32
281a817f
DB		 2830 tmpdiv = rmd->first_block;
2831 do_div(tmpdiv, rmd->stripesize);
2832 rmd->first_row = tmpdiv;
2833 rmd->r5or6_first_row = tmpdiv;
2834 tmpdiv = rmd->last_block;
2835 do_div(tmpdiv, rmd->stripesize);
2836 rmd->r5or6_last_row = tmpdiv;
6c223761 2837#else
281a817f
DB		 2838 rmd->first_row = rmd->r5or6_first_row =
2839 rmd->first_block / rmd->stripesize;
2840 rmd->r5or6_last_row = rmd->last_block / rmd->stripesize;
6c223761 2841#endif
281a817f
DB		 2842 if (rmd->r5or6_first_row != rmd->r5or6_last_row)
2843 return PQI_RAID_BYPASS_INELIGIBLE;
6c223761 2844
583891c9 2845 /* Verify request is in a single column. */
6c223761 2846#if BITS_PER_LONG == 32
281a817f
DB		 2847 tmpdiv = rmd->first_block;
2848 rmd->first_row_offset = do_div(tmpdiv, rmd->stripesize);
2849 tmpdiv = rmd->first_row_offset;
2850 rmd->first_row_offset = (u32)do_div(tmpdiv, rmd->blocks_per_row);
2851 rmd->r5or6_first_row_offset = rmd->first_row_offset;
2852 tmpdiv = rmd->last_block;
2853 rmd->r5or6_last_row_offset = do_div(tmpdiv, rmd->stripesize);
2854 tmpdiv = rmd->r5or6_last_row_offset;
2855 rmd->r5or6_last_row_offset = do_div(tmpdiv, rmd->blocks_per_row);
2856 tmpdiv = rmd->r5or6_first_row_offset;
2857 do_div(tmpdiv, rmd->strip_size);
2858 rmd->first_column = rmd->r5or6_first_column = tmpdiv;
2859 tmpdiv = rmd->r5or6_last_row_offset;
2860 do_div(tmpdiv, rmd->strip_size);
2861 rmd->r5or6_last_column = tmpdiv;
6c223761 2862#else
281a817f 2863 rmd->first_row_offset = rmd->r5or6_first_row_offset =
583891c9
KB		 2864 (u32)((rmd->first_block % rmd->stripesize) %
2865 rmd->blocks_per_row);
281a817f
DB		 2866
2867 rmd->r5or6_last_row_offset =
2868 (u32)((rmd->last_block % rmd->stripesize) %
2869 rmd->blocks_per_row);
2870
2871 rmd->first_column =
583891c9 2872 rmd->r5or6_first_row_offset / rmd->strip_size;
281a817f
DB		 2873 rmd->r5or6_first_column = rmd->first_column;
2874 rmd->r5or6_last_column = rmd->r5or6_last_row_offset / rmd->strip_size;
2875#endif
2876 if (rmd->r5or6_first_column != rmd->r5or6_last_column)
2877 return PQI_RAID_BYPASS_INELIGIBLE;
2878
583891c9 2879 /* Request is eligible. */
281a817f
DB		 2880 rmd->map_row =
2881 ((u32)(rmd->first_row >> raid_map->parity_rotation_shift)) %
2882 get_unaligned_le16(&raid_map->row_cnt);
6c223761 2883
281a817f
DB		 2884 rmd->map_index = (rmd->first_group *
2885 (get_unaligned_le16(&raid_map->row_cnt) *
2886 rmd->total_disks_per_row)) +
2887 (rmd->map_row * rmd->total_disks_per_row) + rmd->first_column;
6c223761 2888
6702d2c4
DB		 2889 if (rmd->is_write) {
2890 u32 index;
6c223761 2891
6702d2c4
DB		 2892 /*
2893 * p_parity_it_nexus and q_parity_it_nexus are pointers to the
2894 * parity entries inside the device's raid_map.
2895 *
2896 * A device's RAID map is bounded by: number of RAID disks squared.
2897 *
2898 * The devices RAID map size is checked during device
2899 * initialization.
2900 */
2901 index = DIV_ROUND_UP(rmd->map_index + 1, rmd->total_disks_per_row);
2902 index *= rmd->total_disks_per_row;
2903 index -= get_unaligned_le16(&raid_map->metadata_disks_per_row);
2904
2905 rmd->p_parity_it_nexus = raid_map->disk_data[index].aio_handle;
2906 if (rmd->raid_level == SA_RAID_6) {
2907 rmd->q_parity_it_nexus = raid_map->disk_data[index + 1].aio_handle;
2908 rmd->xor_mult = raid_map->disk_data[rmd->map_index].xor_mult[1];
2909 }
6702d2c4
DB		 2910#if BITS_PER_LONG == 32
2911 tmpdiv = rmd->first_block;
2912 do_div(tmpdiv, rmd->blocks_per_row);
2913 rmd->row = tmpdiv;
2914#else
2915 rmd->row = rmd->first_block / rmd->blocks_per_row;
6c223761 2916#endif
6702d2c4
DB		 2917 }
2918
281a817f
DB		 2919 return 0;
2920}
2921
2922static void pqi_set_aio_cdb(struct pqi_scsi_dev_raid_map_data *rmd)
2923{
2924 /* Build the new CDB for the physical disk I/O. */
2925 if (rmd->disk_block > 0xffffffff) {
2926 rmd->cdb[0] = rmd->is_write ? WRITE_16 : READ_16;
2927 rmd->cdb[1] = 0;
2928 put_unaligned_be64(rmd->disk_block, &rmd->cdb[2]);
2929 put_unaligned_be32(rmd->disk_block_cnt, &rmd->cdb[10]);
2930 rmd->cdb[14] = 0;
2931 rmd->cdb[15] = 0;
2932 rmd->cdb_length = 16;
2933 } else {
2934 rmd->cdb[0] = rmd->is_write ? WRITE_10 : READ_10;
2935 rmd->cdb[1] = 0;
2936 put_unaligned_be32((u32)rmd->disk_block, &rmd->cdb[2]);
2937 rmd->cdb[6] = 0;
2938 put_unaligned_be16((u16)rmd->disk_block_cnt, &rmd->cdb[7]);
2939 rmd->cdb[9] = 0;
2940 rmd->cdb_length = 10;
2941 }
2942}
2943
7a012c23 2944static void pqi_calc_aio_r1_nexus(struct raid_map *raid_map,
583891c9 2945 struct pqi_scsi_dev_raid_map_data *rmd)
7a012c23
DB		 2946{
2947 u32 index;
2948 u32 group;
2949
2950 group = rmd->map_index / rmd->data_disks_per_row;
2951
2952 index = rmd->map_index - (group * rmd->data_disks_per_row);
2953 rmd->it_nexus[0] = raid_map->disk_data[index].aio_handle;
2954 index += rmd->data_disks_per_row;
2955 rmd->it_nexus[1] = raid_map->disk_data[index].aio_handle;
2956 if (rmd->layout_map_count > 2) {
2957 index += rmd->data_disks_per_row;
2958 rmd->it_nexus[2] = raid_map->disk_data[index].aio_handle;
2959 }
2960
2961 rmd->num_it_nexus_entries = rmd->layout_map_count;
2962}
2963
281a817f
DB		 2964static int pqi_raid_bypass_submit_scsi_cmd(struct pqi_ctrl_info *ctrl_info,
2965 struct pqi_scsi_dev *device, struct scsi_cmnd *scmd,
2966 struct pqi_queue_group *queue_group)
2967{
281a817f 2968 int rc;
7a012c23
DB		 2969 struct raid_map *raid_map;
2970 u32 group;
2971 u32 next_bypass_group;
281a817f
DB		 2972 struct pqi_encryption_info *encryption_info_ptr;
2973 struct pqi_encryption_info encryption_info;
583891c9 2974 struct pqi_scsi_dev_raid_map_data rmd = { 0 };
281a817f
DB		 2975
2976 rc = pqi_get_aio_lba_and_block_count(scmd, &rmd);
2977 if (rc)
2978 return PQI_RAID_BYPASS_INELIGIBLE;
2979
2980 rmd.raid_level = device->raid_level;
6c223761 2981
6702d2c4 2982 if (!pqi_aio_raid_level_supported(ctrl_info, &rmd))
281a817f
DB		 2983 return PQI_RAID_BYPASS_INELIGIBLE;
2984
2985 if (unlikely(rmd.block_cnt == 0))
2986 return PQI_RAID_BYPASS_INELIGIBLE;
2987
2988 raid_map = device->raid_map;
6c223761 2989
281a817f
DB		 2990 rc = pci_get_aio_common_raid_map_values(ctrl_info, &rmd, raid_map);
2991 if (rc)
2992 return PQI_RAID_BYPASS_INELIGIBLE;
6c223761 2993
7a012c23
DB		 2994 if (device->raid_level == SA_RAID_1 ||
2995 device->raid_level == SA_RAID_TRIPLE) {
2996 if (rmd.is_write) {
2997 pqi_calc_aio_r1_nexus(raid_map, &rmd);
2998 } else {
5d8fbce0 2999 group = device->next_bypass_group[rmd.map_index];
7a012c23
DB		 3000 next_bypass_group = group + 1;
3001 if (next_bypass_group >= rmd.layout_map_count)
3002 next_bypass_group = 0;
5d8fbce0 3003 device->next_bypass_group[rmd.map_index] = next_bypass_group;
7a012c23
DB		 3004 rmd.map_index += group * rmd.data_disks_per_row;
3005 }
281a817f 3006 } else if ((device->raid_level == SA_RAID_5 ||
6702d2c4
DB		 3007 device->raid_level == SA_RAID_6) &&
3008 (rmd.layout_map_count > 1 || rmd.is_write)) {
281a817f
DB		 3009 rc = pqi_calc_aio_r5_or_r6(&rmd, raid_map);
3010 if (rc)
3011 return PQI_RAID_BYPASS_INELIGIBLE;
6c223761
KB		 3012 }
3013
281a817f
DB		 3014 if (unlikely(rmd.map_index >= RAID_MAP_MAX_ENTRIES))
3015 return PQI_RAID_BYPASS_INELIGIBLE;
3016
3017 rmd.aio_handle = raid_map->disk_data[rmd.map_index].aio_handle;
3018 rmd.disk_block = get_unaligned_le64(&raid_map->disk_starting_blk) +
3019 rmd.first_row * rmd.strip_size +
3020 (rmd.first_row_offset - rmd.first_column * rmd.strip_size);
3021 rmd.disk_block_cnt = rmd.block_cnt;
6c223761
KB		 3022
3023 /* Handle differing logical/physical block sizes. */
3024 if (raid_map->phys_blk_shift) {
281a817f
DB		 3025 rmd.disk_block <<= raid_map->phys_blk_shift;
3026 rmd.disk_block_cnt <<= raid_map->phys_blk_shift;
6c223761
KB		 3027 }
3028
281a817f 3029 if (unlikely(rmd.disk_block_cnt > 0xffff))
6c223761
KB		 3030 return PQI_RAID_BYPASS_INELIGIBLE;
3031
281a817f 3032 pqi_set_aio_cdb(&rmd);
6c223761 3033
583891c9 3034 if (get_unaligned_le16(&raid_map->flags) & RAID_MAP_ENCRYPTION_ENABLED) {
f6cc2a77
KB		 3035 if (rmd.data_length > device->max_transfer_encrypted)
3036 return PQI_RAID_BYPASS_INELIGIBLE;
583891c9 3037 pqi_set_encryption_info(&encryption_info, raid_map, rmd.first_block);
6c223761
KB		 3038 encryption_info_ptr = &encryption_info;
3039 } else {
3040 encryption_info_ptr = NULL;
3041 }
3042
6702d2c4
DB		 3043 if (rmd.is_write) {
3044 switch (device->raid_level) {
7a012c23
DB		 3045 case SA_RAID_1:
3046 case SA_RAID_TRIPLE:
3047 return pqi_aio_submit_r1_write_io(ctrl_info, scmd, queue_group,
3048 encryption_info_ptr, device, &rmd);
6702d2c4
DB		 3049 case SA_RAID_5:
3050 case SA_RAID_6:
3051 return pqi_aio_submit_r56_write_io(ctrl_info, scmd, queue_group,
583891c9 3052 encryption_info_ptr, device, &rmd);
6702d2c4 3053 }
6702d2c4
DB		 3054 }
3055
f6cc2a77
KB		 3056 return pqi_aio_submit_io(ctrl_info, scmd, rmd.aio_handle,
3057 rmd.cdb, rmd.cdb_length, queue_group,
2a47834d 3058 encryption_info_ptr, true, false);
6c223761
KB		 3059}
3060
3061#define PQI_STATUS_IDLE 0x0
3062
3063#define PQI_CREATE_ADMIN_QUEUE_PAIR 1
3064#define PQI_DELETE_ADMIN_QUEUE_PAIR 2
3065
3066#define PQI_DEVICE_STATE_POWER_ON_AND_RESET 0x0
3067#define PQI_DEVICE_STATE_STATUS_AVAILABLE 0x1
3068#define PQI_DEVICE_STATE_ALL_REGISTERS_READY 0x2
3069#define PQI_DEVICE_STATE_ADMIN_QUEUE_PAIR_READY 0x3
3070#define PQI_DEVICE_STATE_ERROR 0x4
3071
3072#define PQI_MODE_READY_TIMEOUT_SECS 30
3073#define PQI_MODE_READY_POLL_INTERVAL_MSECS 1
3074
3075static int pqi_wait_for_pqi_mode_ready(struct pqi_ctrl_info *ctrl_info)
3076{
3077 struct pqi_device_registers __iomem *pqi_registers;
3078 unsigned long timeout;
3079 u64 signature;
3080 u8 status;
3081
3082 pqi_registers = ctrl_info->pqi_registers;
42dc0426 3083 timeout = (PQI_MODE_READY_TIMEOUT_SECS * HZ) + jiffies;
6c223761
KB		 3084
3085 while (1) {
3086 signature = readq(&pqi_registers->signature);
3087 if (memcmp(&signature, PQI_DEVICE_SIGNATURE,
3088 sizeof(signature)) == 0)
3089 break;
3090 if (time_after(jiffies, timeout)) {
3091 dev_err(&ctrl_info->pci_dev->dev,
3092 "timed out waiting for PQI signature\n");
3093 return -ETIMEDOUT;
3094 }
3095 msleep(PQI_MODE_READY_POLL_INTERVAL_MSECS);
3096 }
3097
3098 while (1) {
3099 status = readb(&pqi_registers->function_and_status_code);
3100 if (status == PQI_STATUS_IDLE)
3101 break;
3102 if (time_after(jiffies, timeout)) {
3103 dev_err(&ctrl_info->pci_dev->dev,
3104 "timed out waiting for PQI IDLE\n");
3105 return -ETIMEDOUT;
3106 }
3107 msleep(PQI_MODE_READY_POLL_INTERVAL_MSECS);
3108 }
3109
3110 while (1) {
3111 if (readl(&pqi_registers->device_status) ==
3112 PQI_DEVICE_STATE_ALL_REGISTERS_READY)
3113 break;
3114 if (time_after(jiffies, timeout)) {
3115 dev_err(&ctrl_info->pci_dev->dev,
3116 "timed out waiting for PQI all registers ready\n");
3117 return -ETIMEDOUT;
3118 }
3119 msleep(PQI_MODE_READY_POLL_INTERVAL_MSECS);
3120 }
3121
3122 return 0;
3123}
3124
3125static inline void pqi_aio_path_disabled(struct pqi_io_request *io_request)
3126{
3127 struct pqi_scsi_dev *device;
3128
3129 device = io_request->scmd->device->hostdata;
588a63fe 3130 device->raid_bypass_enabled = false;
376fb880 3131 device->aio_enabled = false;
6c223761
KB		 3132}
3133
d87d5474 3134static inline void pqi_take_device_offline(struct scsi_device *sdev, char *path)
6c223761
KB		 3135{
3136 struct pqi_ctrl_info *ctrl_info;
e58081a7 3137 struct pqi_scsi_dev *device;
6c223761 3138
03b288cf
KB		 3139 device = sdev->hostdata;
3140 if (device->device_offline)
3141 return;
3142
3143 device->device_offline = true;
03b288cf
KB		 3144 ctrl_info = shost_to_hba(sdev->host);
3145 pqi_schedule_rescan_worker(ctrl_info);
a9a68101 3146 dev_err(&ctrl_info->pci_dev->dev, "re-scanning %s scsi %d:%d:%d:%d\n",
03b288cf
KB		 3147 path, ctrl_info->scsi_host->host_no, device->bus,
3148 device->target, device->lun);
6c223761
KB		 3149}
3150
3151static void pqi_process_raid_io_error(struct pqi_io_request *io_request)
3152{
3153 u8 scsi_status;
3154 u8 host_byte;
3155 struct scsi_cmnd *scmd;
3156 struct pqi_raid_error_info *error_info;
3157 size_t sense_data_length;
3158 int residual_count;
3159 int xfer_count;
3160 struct scsi_sense_hdr sshdr;
3161
3162 scmd = io_request->scmd;
3163 if (!scmd)
3164 return;
3165
3166 error_info = io_request->error_info;
3167 scsi_status = error_info->status;
3168 host_byte = DID_OK;
3169
f5b63206
KB		 3170 switch (error_info->data_out_result) {
3171 case PQI_DATA_IN_OUT_GOOD:
3172 break;
3173 case PQI_DATA_IN_OUT_UNDERFLOW:
6c223761
KB		 3174 xfer_count =
3175 get_unaligned_le32(&error_info->data_out_transferred);
3176 residual_count = scsi_bufflen(scmd) - xfer_count;
3177 scsi_set_resid(scmd, residual_count);
3178 if (xfer_count < scmd->underflow)
3179 host_byte = DID_SOFT_ERROR;
f5b63206
KB		 3180 break;
3181 case PQI_DATA_IN_OUT_UNSOLICITED_ABORT:
3182 case PQI_DATA_IN_OUT_ABORTED:
3183 host_byte = DID_ABORT;
3184 break;
3185 case PQI_DATA_IN_OUT_TIMEOUT:
3186 host_byte = DID_TIME_OUT;
3187 break;
3188 case PQI_DATA_IN_OUT_BUFFER_OVERFLOW:
3189 case PQI_DATA_IN_OUT_PROTOCOL_ERROR:
3190 case PQI_DATA_IN_OUT_BUFFER_ERROR:
3191 case PQI_DATA_IN_OUT_BUFFER_OVERFLOW_DESCRIPTOR_AREA:
3192 case PQI_DATA_IN_OUT_BUFFER_OVERFLOW_BRIDGE:
3193 case PQI_DATA_IN_OUT_ERROR:
3194 case PQI_DATA_IN_OUT_HARDWARE_ERROR:
3195 case PQI_DATA_IN_OUT_PCIE_FABRIC_ERROR:
3196 case PQI_DATA_IN_OUT_PCIE_COMPLETION_TIMEOUT:
3197 case PQI_DATA_IN_OUT_PCIE_COMPLETER_ABORT_RECEIVED:
3198 case PQI_DATA_IN_OUT_PCIE_UNSUPPORTED_REQUEST_RECEIVED:
3199 case PQI_DATA_IN_OUT_PCIE_ECRC_CHECK_FAILED:
3200 case PQI_DATA_IN_OUT_PCIE_UNSUPPORTED_REQUEST:
3201 case PQI_DATA_IN_OUT_PCIE_ACS_VIOLATION:
3202 case PQI_DATA_IN_OUT_PCIE_TLP_PREFIX_BLOCKED:
3203 case PQI_DATA_IN_OUT_PCIE_POISONED_MEMORY_READ:
3204 default:
3205 host_byte = DID_ERROR;
3206 break;
6c223761
KB		 3207 }
3208
3209 sense_data_length = get_unaligned_le16(&error_info->sense_data_length);
3210 if (sense_data_length == 0)
3211 sense_data_length =
3212 get_unaligned_le16(&error_info->response_data_length);
3213 if (sense_data_length) {
3214 if (sense_data_length > sizeof(error_info->data))
3215 sense_data_length = sizeof(error_info->data);
3216
3217 if (scsi_status == SAM_STAT_CHECK_CONDITION &&
3218 scsi_normalize_sense(error_info->data,
3219 sense_data_length, &sshdr) &&
3220 sshdr.sense_key == HARDWARE_ERROR &&
8ef860ae 3221 sshdr.asc == 0x3e) {
441b7195
EV		 3222 struct pqi_ctrl_info *ctrl_info = shost_to_hba(scmd->device->host);
3223 struct pqi_scsi_dev *device = scmd->device->hostdata;
3224
8ef860ae
EV		 3225 switch (sshdr.ascq) {
3226 case 0x1: /* LOGICAL UNIT FAILURE */
3227 if (printk_ratelimit())
3228 scmd_printk(KERN_ERR, scmd, "received 'logical unit failure' from controller for scsi %d:%d:%d:%d\n",
3229 ctrl_info->scsi_host->host_no, device->bus, device->target, device->lun);
3230 pqi_take_device_offline(scmd->device, "RAID");
3231 host_byte = DID_NO_CONNECT;
3232 break;
3233
3234 default: /* See http://www.t10.org/lists/asc-num.htm#ASC_3E */
3235 if (printk_ratelimit())
3236 scmd_printk(KERN_ERR, scmd, "received unhandled error %d from controller for scsi %d:%d:%d:%d\n",
3237 sshdr.ascq, ctrl_info->scsi_host->host_no, device->bus, device->target, device->lun);
3238 break;
3239 }
6c223761
KB		 3240 }
3241
3242 if (sense_data_length > SCSI_SENSE_BUFFERSIZE)
3243 sense_data_length = SCSI_SENSE_BUFFERSIZE;
3244 memcpy(scmd->sense_buffer, error_info->data,
3245 sense_data_length);
3246 }
3247
3248 scmd->result = scsi_status;
3249 set_host_byte(scmd, host_byte);
3250}
3251
3252static void pqi_process_aio_io_error(struct pqi_io_request *io_request)
3253{
3254 u8 scsi_status;
3255 u8 host_byte;
3256 struct scsi_cmnd *scmd;
3257 struct pqi_aio_error_info *error_info;
3258 size_t sense_data_length;
3259 int residual_count;
3260 int xfer_count;
3261 bool device_offline;
94a68c81 3262 struct pqi_scsi_dev *device;
6c223761
KB		 3263
3264 scmd = io_request->scmd;
3265 error_info = io_request->error_info;
3266 host_byte = DID_OK;
3267 sense_data_length = 0;
3268 device_offline = false;
94a68c81 3269 device = scmd->device->hostdata;
6c223761
KB		 3270
3271 switch (error_info->service_response) {
3272 case PQI_AIO_SERV_RESPONSE_COMPLETE:
3273 scsi_status = error_info->status;
3274 break;
3275 case PQI_AIO_SERV_RESPONSE_FAILURE:
3276 switch (error_info->status) {
3277 case PQI_AIO_STATUS_IO_ABORTED:
3278 scsi_status = SAM_STAT_TASK_ABORTED;
3279 break;
3280 case PQI_AIO_STATUS_UNDERRUN:
3281 scsi_status = SAM_STAT_GOOD;
3282 residual_count = get_unaligned_le32(
3283 &error_info->residual_count);
3284 scsi_set_resid(scmd, residual_count);
3285 xfer_count = scsi_bufflen(scmd) - residual_count;
3286 if (xfer_count < scmd->underflow)
3287 host_byte = DID_SOFT_ERROR;
3288 break;
3289 case PQI_AIO_STATUS_OVERRUN:
3290 scsi_status = SAM_STAT_GOOD;
3291 break;
3292 case PQI_AIO_STATUS_AIO_PATH_DISABLED:
3293 pqi_aio_path_disabled(io_request);
94a68c81
MB		 3294 if (pqi_is_multipath_device(device)) {
3295 pqi_device_remove_start(device);
3296 host_byte = DID_NO_CONNECT;
3297 scsi_status = SAM_STAT_CHECK_CONDITION;
3298 } else {
3299 scsi_status = SAM_STAT_GOOD;
3300 io_request->status = -EAGAIN;
3301 }
6c223761
KB		 3302 break;
3303 case PQI_AIO_STATUS_NO_PATH_TO_DEVICE:
3304 case PQI_AIO_STATUS_INVALID_DEVICE:
376fb880
KB		 3305 if (!io_request->raid_bypass) {
3306 device_offline = true;
3307 pqi_take_device_offline(scmd->device, "AIO");
3308 host_byte = DID_NO_CONNECT;
3309 }
6c223761
KB		 3310 scsi_status = SAM_STAT_CHECK_CONDITION;
3311 break;
3312 case PQI_AIO_STATUS_IO_ERROR:
3313 default:
3314 scsi_status = SAM_STAT_CHECK_CONDITION;
3315 break;
3316 }
3317 break;
3318 case PQI_AIO_SERV_RESPONSE_TMF_COMPLETE:
3319 case PQI_AIO_SERV_RESPONSE_TMF_SUCCEEDED:
3320 scsi_status = SAM_STAT_GOOD;
3321 break;
3322 case PQI_AIO_SERV_RESPONSE_TMF_REJECTED:
3323 case PQI_AIO_SERV_RESPONSE_TMF_INCORRECT_LUN:
3324 default:
3325 scsi_status = SAM_STAT_CHECK_CONDITION;
3326 break;
3327 }
3328
3329 if (error_info->data_present) {
3330 sense_data_length =
3331 get_unaligned_le16(&error_info->data_length);
3332 if (sense_data_length) {
3333 if (sense_data_length > sizeof(error_info->data))
3334 sense_data_length = sizeof(error_info->data);
3335 if (sense_data_length > SCSI_SENSE_BUFFERSIZE)
3336 sense_data_length = SCSI_SENSE_BUFFERSIZE;
3337 memcpy(scmd->sense_buffer, error_info->data,
3338 sense_data_length);
3339 }
3340 }
3341
3342 if (device_offline && sense_data_length == 0)
f2b1e9c6 3343 scsi_build_sense(scmd, 0, HARDWARE_ERROR, 0x3e, 0x1);
6c223761
KB		 3344
3345 scmd->result = scsi_status;
3346 set_host_byte(scmd, host_byte);
3347}
3348
3349static void pqi_process_io_error(unsigned int iu_type,
3350 struct pqi_io_request *io_request)
3351{
3352 switch (iu_type) {
3353 case PQI_RESPONSE_IU_RAID_PATH_IO_ERROR:
3354 pqi_process_raid_io_error(io_request);
3355 break;
3356 case PQI_RESPONSE_IU_AIO_PATH_IO_ERROR:
3357 pqi_process_aio_io_error(io_request);
3358 break;
3359 }
3360}
3361
18ff5f08 3362static int pqi_interpret_task_management_response(struct pqi_ctrl_info *ctrl_info,
6c223761
KB		 3363 struct pqi_task_management_response *response)
3364{
3365 int rc;
3366
3367 switch (response->response_code) {
b17f0486
KB		 3368 case SOP_TMF_COMPLETE:
3369 case SOP_TMF_FUNCTION_SUCCEEDED:
6c223761
KB		 3370 rc = 0;
3371 break;
3406384b
MR		 3372 case SOP_TMF_REJECTED:
3373 rc = -EAGAIN;
3374 break;
43cf3a6e 3375 case SOP_TMF_INCORRECT_LOGICAL_UNIT:
4e7d2602
MM		 3376 rc = -ENODEV;
3377 break;
6c223761
KB		 3378 default:
3379 rc = -EIO;
3380 break;
3381 }
3382
18ff5f08
KB		 3383 if (rc)
3384 dev_err(&ctrl_info->pci_dev->dev,
3385 "Task Management Function error: %d (response code: %u)\n", rc, response->response_code);
3386
6c223761
KB		 3387 return rc;
3388}
3389
5d1f03e6
MB		 3390static inline void pqi_invalid_response(struct pqi_ctrl_info *ctrl_info,
3391 enum pqi_ctrl_shutdown_reason ctrl_shutdown_reason)
6c223761 3392{
5d1f03e6 3393 pqi_take_ctrl_offline(ctrl_info, ctrl_shutdown_reason);
9e68cccc
KB		 3394}
3395
3396static int pqi_process_io_intr(struct pqi_ctrl_info *ctrl_info, struct pqi_queue_group *queue_group)
6c223761 3397{
9e68cccc 3398 int num_responses;
6c223761
KB		 3399 pqi_index_t oq_pi;
3400 pqi_index_t oq_ci;
3401 struct pqi_io_request *io_request;
3402 struct pqi_io_response *response;
3403 u16 request_id;
3404
3405 num_responses = 0;
3406 oq_ci = queue_group->oq_ci_copy;
3407
3408 while (1) {
dac12fbc 3409 oq_pi = readl(queue_group->oq_pi);
9e68cccc 3410 if (oq_pi >= ctrl_info->num_elements_per_oq) {
5d1f03e6 3411 pqi_invalid_response(ctrl_info, PQI_IO_PI_OUT_OF_RANGE);
9e68cccc
KB		 3412 dev_err(&ctrl_info->pci_dev->dev,
3413 "I/O interrupt: producer index (%u) out of range (0-%u): consumer index: %u\n",
3414 oq_pi, ctrl_info->num_elements_per_oq - 1, oq_ci);
3415 return -1;
3416 }
6c223761
KB		 3417 if (oq_pi == oq_ci)
3418 break;
3419
3420 num_responses++;
3421 response = queue_group->oq_element_array +
3422 (oq_ci * PQI_OPERATIONAL_OQ_ELEMENT_LENGTH);
3423
3424 request_id = get_unaligned_le16(&response->request_id);
9e68cccc 3425 if (request_id >= ctrl_info->max_io_slots) {
5d1f03e6 3426 pqi_invalid_response(ctrl_info, PQI_INVALID_REQ_ID);
9e68cccc
KB		 3427 dev_err(&ctrl_info->pci_dev->dev,
3428 "request ID in response (%u) out of range (0-%u): producer index: %u consumer index: %u\n",
3429 request_id, ctrl_info->max_io_slots - 1, oq_pi, oq_ci);
3430 return -1;
3431 }
6c223761
KB		 3432
3433 io_request = &ctrl_info->io_request_pool[request_id];
9e68cccc 3434 if (atomic_read(&io_request->refcount) == 0) {
5d1f03e6 3435 pqi_invalid_response(ctrl_info, PQI_UNMATCHED_REQ_ID);
9e68cccc
KB		 3436 dev_err(&ctrl_info->pci_dev->dev,
3437 "request ID in response (%u) does not match an outstanding I/O request: producer index: %u consumer index: %u\n",
3438 request_id, oq_pi, oq_ci);
3439 return -1;
3440 }
6c223761
KB		 3441
3442 switch (response->header.iu_type) {
3443 case PQI_RESPONSE_IU_RAID_PATH_IO_SUCCESS:
3444 case PQI_RESPONSE_IU_AIO_PATH_IO_SUCCESS:
2ba55c98
KB		 3445 if (io_request->scmd)
3446 io_request->scmd->result = 0;
df561f66 3447 fallthrough;
6c223761
KB		 3448 case PQI_RESPONSE_IU_GENERAL_MANAGEMENT:
3449 break;
b212c251
KB		 3450 case PQI_RESPONSE_IU_VENDOR_GENERAL:
3451 io_request->status =
3452 get_unaligned_le16(
583891c9 3453 &((struct pqi_vendor_general_response *)response)->status);
b212c251 3454 break;
6c223761 3455 case PQI_RESPONSE_IU_TASK_MANAGEMENT:
18ff5f08
KB		 3456 io_request->status = pqi_interpret_task_management_response(ctrl_info,
3457 (void *)response);
6c223761
KB		 3458 break;
3459 case PQI_RESPONSE_IU_AIO_PATH_DISABLED:
3460 pqi_aio_path_disabled(io_request);
3461 io_request->status = -EAGAIN;
3462 break;
3463 case PQI_RESPONSE_IU_RAID_PATH_IO_ERROR:
3464 case PQI_RESPONSE_IU_AIO_PATH_IO_ERROR:
3465 io_request->error_info = ctrl_info->error_buffer +
3466 (get_unaligned_le16(&response->error_index) *
3467 PQI_ERROR_BUFFER_ELEMENT_LENGTH);
9e68cccc 3468 pqi_process_io_error(response->header.iu_type, io_request);
6c223761
KB		 3469 break;
3470 default:
5d1f03e6 3471 pqi_invalid_response(ctrl_info, PQI_UNEXPECTED_IU_TYPE);
6c223761 3472 dev_err(&ctrl_info->pci_dev->dev,
9e68cccc
KB		 3473 "unexpected IU type: 0x%x: producer index: %u consumer index: %u\n",
3474 response->header.iu_type, oq_pi, oq_ci);
3475 return -1;
6c223761
KB		 3476 }
3477
9e68cccc 3478 io_request->io_complete_callback(io_request, io_request->context);
6c223761
KB		 3479
3480 /*
3481 * Note that the I/O request structure CANNOT BE TOUCHED after
3482 * returning from the I/O completion callback!
3483 */
6c223761
KB		 3484 oq_ci = (oq_ci + 1) % ctrl_info->num_elements_per_oq;
3485 }
3486
3487 if (num_responses) {
3488 queue_group->oq_ci_copy = oq_ci;
3489 writel(oq_ci, queue_group->oq_ci);
3490 }
3491
3492 return num_responses;
3493}
3494
3495static inline unsigned int pqi_num_elements_free(unsigned int pi,
df7a1fcf 3496 unsigned int ci, unsigned int elements_in_queue)
6c223761
KB		 3497{
3498 unsigned int num_elements_used;
3499
3500 if (pi >= ci)
3501 num_elements_used = pi - ci;
3502 else
3503 num_elements_used = elements_in_queue - ci + pi;
3504
3505 return elements_in_queue - num_elements_used - 1;
3506}
3507
98f87667 3508static void pqi_send_event_ack(struct pqi_ctrl_info *ctrl_info,
6c223761
KB		 3509 struct pqi_event_acknowledge_request *iu, size_t iu_length)
3510{
3511 pqi_index_t iq_pi;
3512 pqi_index_t iq_ci;
3513 unsigned long flags;
3514 void *next_element;
6c223761
KB		 3515 struct pqi_queue_group *queue_group;
3516
3517 queue_group = &ctrl_info->queue_groups[PQI_DEFAULT_QUEUE_GROUP];
3518 put_unaligned_le16(queue_group->oq_id, &iu->header.response_queue_id);
3519
6c223761
KB		 3520 while (1) {
3521 spin_lock_irqsave(&queue_group->submit_lock[RAID_PATH], flags);
3522
3523 iq_pi = queue_group->iq_pi_copy[RAID_PATH];
dac12fbc 3524 iq_ci = readl(queue_group->iq_ci[RAID_PATH]);
6c223761
KB		 3525
3526 if (pqi_num_elements_free(iq_pi, iq_ci,
3527 ctrl_info->num_elements_per_iq))
3528 break;
3529
3530 spin_unlock_irqrestore(
3531 &queue_group->submit_lock[RAID_PATH], flags);
3532
98f87667 3533 if (pqi_ctrl_offline(ctrl_info))
6c223761 3534 return;
6c223761
KB		 3535 }
3536
3537 next_element = queue_group->iq_element_array[RAID_PATH] +
3538 (iq_pi * PQI_OPERATIONAL_IQ_ELEMENT_LENGTH);
3539
3540 memcpy(next_element, iu, iu_length);
3541
3542 iq_pi = (iq_pi + 1) % ctrl_info->num_elements_per_iq;
6c223761
KB		 3543 queue_group->iq_pi_copy[RAID_PATH] = iq_pi;
3544
3545 /*
3546 * This write notifies the controller that an IU is available to be
3547 * processed.
3548 */
3549 writel(iq_pi, queue_group->iq_pi[RAID_PATH]);
3550
3551 spin_unlock_irqrestore(&queue_group->submit_lock[RAID_PATH], flags);
6c223761
KB		 3552}
3553
3554static void pqi_acknowledge_event(struct pqi_ctrl_info *ctrl_info,
3555 struct pqi_event *event)
3556{
3557 struct pqi_event_acknowledge_request request;
3558
3559 memset(&request, 0, sizeof(request));
3560
3561 request.header.iu_type = PQI_REQUEST_IU_ACKNOWLEDGE_VENDOR_EVENT;
3562 put_unaligned_le16(sizeof(request) - PQI_REQUEST_HEADER_LENGTH,
3563 &request.header.iu_length);
3564 request.event_type = event->event_type;
06b41e0d
KB		 3565 put_unaligned_le16(event->event_id, &request.event_id);
3566 put_unaligned_le32(event->additional_event_id, &request.additional_event_id);
6c223761 3567
98f87667 3568 pqi_send_event_ack(ctrl_info, &request, sizeof(request));
6c223761
KB		 3569}
3570
4fd22c13
MR		 3571#define PQI_SOFT_RESET_STATUS_TIMEOUT_SECS 30
3572#define PQI_SOFT_RESET_STATUS_POLL_INTERVAL_SECS 1
3573
3574static enum pqi_soft_reset_status pqi_poll_for_soft_reset_status(
3575 struct pqi_ctrl_info *ctrl_info)
6c223761 3576{
4fd22c13 3577 u8 status;
583891c9 3578 unsigned long timeout;
6c223761 3579
42dc0426 3580 timeout = (PQI_SOFT_RESET_STATUS_TIMEOUT_SECS * HZ) + jiffies;
6c223761 3581
4fd22c13
MR		 3582 while (1) {
3583 status = pqi_read_soft_reset_status(ctrl_info);
3584 if (status & PQI_SOFT_RESET_INITIATE)
3585 return RESET_INITIATE_DRIVER;
3586
3587 if (status & PQI_SOFT_RESET_ABORT)
3588 return RESET_ABORT;
3589
4ccc354b
KB		 3590 if (!sis_is_firmware_running(ctrl_info))
3591 return RESET_NORESPONSE;
3592
4fd22c13 3593 if (time_after(jiffies, timeout)) {
4ccc354b 3594 dev_warn(&ctrl_info->pci_dev->dev,
4fd22c13
MR		 3595 "timed out waiting for soft reset status\n");
3596 return RESET_TIMEDOUT;
3597 }
3598
4fd22c13
MR		 3599 ssleep(PQI_SOFT_RESET_STATUS_POLL_INTERVAL_SECS);
3600 }
3601}
3602
4ccc354b 3603static void pqi_process_soft_reset(struct pqi_ctrl_info *ctrl_info)
4fd22c13
MR		 3604{
3605 int rc;
2790cd4d 3606 unsigned int delay_secs;
4ccc354b
KB		 3607 enum pqi_soft_reset_status reset_status;
3608
3609 if (ctrl_info->soft_reset_handshake_supported)
3610 reset_status = pqi_poll_for_soft_reset_status(ctrl_info);
3611 else
3612 reset_status = RESET_INITIATE_FIRMWARE;
4fd22c13 3613
2790cd4d 3614 delay_secs = PQI_POST_RESET_DELAY_SECS;
4fd22c13
MR		 3615
3616 switch (reset_status) {
4fd22c13 3617 case RESET_TIMEDOUT:
2790cd4d 3618 delay_secs = PQI_POST_OFA_RESET_DELAY_UPON_TIMEOUT_SECS;
4ccc354b
KB		 3619 fallthrough;
3620 case RESET_INITIATE_DRIVER:
4fd22c13 3621 dev_info(&ctrl_info->pci_dev->dev,
4ccc354b 3622 "Online Firmware Activation: resetting controller\n");
4fd22c13 3623 sis_soft_reset(ctrl_info);
df561f66 3624 fallthrough;
4fd22c13 3625 case RESET_INITIATE_FIRMWARE:
4ccc354b
KB		 3626 ctrl_info->pqi_mode_enabled = false;
3627 pqi_save_ctrl_mode(ctrl_info, SIS_MODE);
2790cd4d 3628 rc = pqi_ofa_ctrl_restart(ctrl_info, delay_secs);
4fd22c13 3629 pqi_ofa_free_host_buffer(ctrl_info);
4ccc354b 3630 pqi_ctrl_ofa_done(ctrl_info);
4fd22c13 3631 dev_info(&ctrl_info->pci_dev->dev,
4ccc354b
KB		 3632 "Online Firmware Activation: %s\n",
3633 rc == 0 ? "SUCCESS" : "FAILED");
4fd22c13
MR		 3634 break;
3635 case RESET_ABORT:
4fd22c13 3636 dev_info(&ctrl_info->pci_dev->dev,
4ccc354b
KB		 3637 "Online Firmware Activation ABORTED\n");
3638 if (ctrl_info->soft_reset_handshake_supported)
3639 pqi_clear_soft_reset_status(ctrl_info);
3640 pqi_ofa_free_host_buffer(ctrl_info);
3641 pqi_ctrl_ofa_done(ctrl_info);
3642 pqi_ofa_ctrl_unquiesce(ctrl_info);
4fd22c13
MR		 3643 break;
3644 case RESET_NORESPONSE:
4ccc354b
KB		 3645 fallthrough;
3646 default:
3647 dev_err(&ctrl_info->pci_dev->dev,
3648 "unexpected Online Firmware Activation reset status: 0x%x\n",
3649 reset_status);
4fd22c13 3650 pqi_ofa_free_host_buffer(ctrl_info);
4ccc354b
KB		 3651 pqi_ctrl_ofa_done(ctrl_info);
3652 pqi_ofa_ctrl_unquiesce(ctrl_info);
5d1f03e6 3653 pqi_take_ctrl_offline(ctrl_info, PQI_OFA_RESPONSE_TIMEOUT);
4fd22c13
MR		 3654 break;
3655 }
3656}
3657
2790cd4d 3658static void pqi_ofa_memory_alloc_worker(struct work_struct *work)
4fd22c13 3659{
2790cd4d 3660 struct pqi_ctrl_info *ctrl_info;
4fd22c13 3661
2790cd4d 3662 ctrl_info = container_of(work, struct pqi_ctrl_info, ofa_memory_alloc_work);
4fd22c13 3663
2790cd4d
KB		 3664 pqi_ctrl_ofa_start(ctrl_info);
3665 pqi_ofa_setup_host_buffer(ctrl_info);
3666 pqi_ofa_host_memory_update(ctrl_info);
3667}
4fd22c13 3668
2790cd4d
KB		 3669static void pqi_ofa_quiesce_worker(struct work_struct *work)
3670{
3671 struct pqi_ctrl_info *ctrl_info;
3672 struct pqi_event *event;
4fd22c13 3673
2790cd4d
KB		 3674 ctrl_info = container_of(work, struct pqi_ctrl_info, ofa_quiesce_work);
3675
3676 event = &ctrl_info->events[pqi_event_type_to_event_index(PQI_EVENT_TYPE_OFA)];
3677
3678 pqi_ofa_ctrl_quiesce(ctrl_info);
3679 pqi_acknowledge_event(ctrl_info, event);
3680 pqi_process_soft_reset(ctrl_info);
3681}
4fd22c13 3682
2790cd4d
KB		 3683static bool pqi_ofa_process_event(struct pqi_ctrl_info *ctrl_info,
3684 struct pqi_event *event)
3685{
3686 bool ack_event;
3687
3688 ack_event = true;
3689
3690 switch (event->event_id) {
3691 case PQI_EVENT_OFA_MEMORY_ALLOCATION:
4fd22c13 3692 dev_info(&ctrl_info->pci_dev->dev,
2790cd4d
KB		 3693 "received Online Firmware Activation memory allocation request\n");
3694 schedule_work(&ctrl_info->ofa_memory_alloc_work);
3695 break;
3696 case PQI_EVENT_OFA_QUIESCE:
4fd22c13 3697 dev_info(&ctrl_info->pci_dev->dev,
2790cd4d
KB		 3698 "received Online Firmware Activation quiesce request\n");
3699 schedule_work(&ctrl_info->ofa_quiesce_work);
3700 ack_event = false;
3701 break;
3702 case PQI_EVENT_OFA_CANCELED:
4fd22c13 3703 dev_info(&ctrl_info->pci_dev->dev,
2790cd4d
KB		 3704 "received Online Firmware Activation cancel request: reason: %u\n",
3705 ctrl_info->ofa_cancel_reason);
3706 pqi_ofa_free_host_buffer(ctrl_info);
3707 pqi_ctrl_ofa_done(ctrl_info);
3708 break;
3709 default:
3710 dev_err(&ctrl_info->pci_dev->dev,
3711 "received unknown Online Firmware Activation request: event ID: %u\n",
3712 event->event_id);
3713 break;
4fd22c13
MR		 3714 }
3715
2790cd4d 3716 return ack_event;
4fd22c13
MR		 3717}
3718
fb4cece1
MR		 3719static void pqi_mark_volumes_for_rescan(struct pqi_ctrl_info *ctrl_info)
3720{
3721 unsigned long flags;
3722 struct pqi_scsi_dev *device;
3723
3724 spin_lock_irqsave(&ctrl_info->scsi_device_list_lock, flags);
3725
3726 list_for_each_entry(device, &ctrl_info->scsi_device_list, scsi_device_list_entry) {
3727 if (pqi_is_logical_device(device) && device->devtype == TYPE_DISK)
3728 device->rescan = true;
3729 }
3730
3731 spin_unlock_irqrestore(&ctrl_info->scsi_device_list_lock, flags);
3732}
3733
6ce3cfb3
KB		 3734static void pqi_disable_raid_bypass(struct pqi_ctrl_info *ctrl_info)
3735{
3736 unsigned long flags;
3737 struct pqi_scsi_dev *device;
3738
3739 spin_lock_irqsave(&ctrl_info->scsi_device_list_lock, flags);
3740
3741 list_for_each_entry(device, &ctrl_info->scsi_device_list, scsi_device_list_entry)
3742 if (device->raid_bypass_enabled)
3743 device->raid_bypass_enabled = false;
3744
3745 spin_unlock_irqrestore(&ctrl_info->scsi_device_list_lock, flags);
3746}
3747
6c223761
KB		 3748static void pqi_event_worker(struct work_struct *work)
3749{
3750 unsigned int i;
2790cd4d 3751 bool rescan_needed;
6c223761 3752 struct pqi_ctrl_info *ctrl_info;
6a50d6ad 3753 struct pqi_event *event;
2790cd4d 3754 bool ack_event;
6c223761
KB		 3755
3756 ctrl_info = container_of(work, struct pqi_ctrl_info, event_work);
3757
7561a7e4 3758 pqi_ctrl_busy(ctrl_info);
ae0c189d 3759 pqi_wait_if_ctrl_blocked(ctrl_info);
5f310425
KB		 3760 if (pqi_ctrl_offline(ctrl_info))
3761 goto out;
3762
2790cd4d 3763 rescan_needed = false;
6a50d6ad 3764 event = ctrl_info->events;
6c223761 3765 for (i = 0; i < PQI_NUM_SUPPORTED_EVENTS; i++) {
6a50d6ad
KB		 3766 if (event->pending) {
3767 event->pending = false;
4fd22c13 3768 if (event->event_type == PQI_EVENT_TYPE_OFA) {
2790cd4d
KB		 3769 ack_event = pqi_ofa_process_event(ctrl_info, event);
3770 } else {
3771 ack_event = true;
3772 rescan_needed = true;
27655e9d 3773 if (event->event_type == PQI_EVENT_TYPE_LOGICAL_DEVICE)
fb4cece1 3774 pqi_mark_volumes_for_rescan(ctrl_info);
6ce3cfb3
KB		 3775 else if (event->event_type == PQI_EVENT_TYPE_AIO_STATE_CHANGE)
3776 pqi_disable_raid_bypass(ctrl_info);
4fd22c13 3777 }
2790cd4d
KB		 3778 if (ack_event)
3779 pqi_acknowledge_event(ctrl_info, event);
6c223761 3780 }
6a50d6ad 3781 event++;
6c223761
KB		 3782 }
3783
4e7d2602
MM		 3784#define PQI_RESCAN_WORK_FOR_EVENT_DELAY (5 * HZ)
3785
2790cd4d 3786 if (rescan_needed)
4e7d2602
MM		 3787 pqi_schedule_rescan_worker_with_delay(ctrl_info,
3788 PQI_RESCAN_WORK_FOR_EVENT_DELAY);
2790cd4d 3789
5f310425 3790out:
7561a7e4 3791 pqi_ctrl_unbusy(ctrl_info);
6c223761
KB		 3792}
3793
42dc0426 3794#define PQI_HEARTBEAT_TIMER_INTERVAL (10 * HZ)
6c223761 3795
74a0f573 3796static void pqi_heartbeat_timer_handler(struct timer_list *t)
6c223761
KB		 3797{
3798 int num_interrupts;
98f87667 3799 u32 heartbeat_count;
583891c9 3800 struct pqi_ctrl_info *ctrl_info = from_timer(ctrl_info, t, heartbeat_timer);
6c223761 3801
98f87667
KB		 3802 pqi_check_ctrl_health(ctrl_info);
3803 if (pqi_ctrl_offline(ctrl_info))
061ef06a
KB		 3804 return;
3805
6c223761 3806 num_interrupts = atomic_read(&ctrl_info->num_interrupts);
98f87667 3807 heartbeat_count = pqi_read_heartbeat_counter(ctrl_info);
6c223761
KB		 3808
3809 if (num_interrupts == ctrl_info->previous_num_interrupts) {
98f87667
KB		 3810 if (heartbeat_count == ctrl_info->previous_heartbeat_count) {
3811 dev_err(&ctrl_info->pci_dev->dev,
3812 "no heartbeat detected - last heartbeat count: %u\n",
3813 heartbeat_count);
5d1f03e6 3814 pqi_take_ctrl_offline(ctrl_info, PQI_NO_HEARTBEAT);
6c223761
KB		 3815 return;
3816 }
6c223761 3817 } else {
98f87667 3818 ctrl_info->previous_num_interrupts = num_interrupts;
6c223761
KB		 3819 }
3820
98f87667 3821 ctrl_info->previous_heartbeat_count = heartbeat_count;
6c223761
KB		 3822 mod_timer(&ctrl_info->heartbeat_timer,
3823 jiffies + PQI_HEARTBEAT_TIMER_INTERVAL);
3824}
3825
3826static void pqi_start_heartbeat_timer(struct pqi_ctrl_info *ctrl_info)
3827{
98f87667
KB		 3828 if (!ctrl_info->heartbeat_counter)
3829 return;
3830
6c223761
KB		 3831 ctrl_info->previous_num_interrupts =
3832 atomic_read(&ctrl_info->num_interrupts);
98f87667
KB		 3833 ctrl_info->previous_heartbeat_count =
3834 pqi_read_heartbeat_counter(ctrl_info);
6c223761 3835
6c223761
KB		 3836 ctrl_info->heartbeat_timer.expires =
3837 jiffies + PQI_HEARTBEAT_TIMER_INTERVAL;
061ef06a 3838 add_timer(&ctrl_info->heartbeat_timer);
6c223761
KB		 3839}
3840
3841static inline void pqi_stop_heartbeat_timer(struct pqi_ctrl_info *ctrl_info)
3842{
98f87667 3843 del_timer_sync(&ctrl_info->heartbeat_timer);
6c223761
KB		 3844}
3845
2790cd4d
KB		 3846static void pqi_ofa_capture_event_payload(struct pqi_ctrl_info *ctrl_info,
3847 struct pqi_event *event, struct pqi_event_response *response)
4fd22c13 3848{
2790cd4d
KB		 3849 switch (event->event_id) {
3850 case PQI_EVENT_OFA_MEMORY_ALLOCATION:
3851 ctrl_info->ofa_bytes_requested =
3852 get_unaligned_le32(&response->data.ofa_memory_allocation.bytes_requested);
3853 break;
3854 case PQI_EVENT_OFA_CANCELED:
3855 ctrl_info->ofa_cancel_reason =
3856 get_unaligned_le16(&response->data.ofa_cancelled.reason);
3857 break;
4fd22c13
MR		 3858 }
3859}
3860
9e68cccc 3861static int pqi_process_event_intr(struct pqi_ctrl_info *ctrl_info)
6c223761 3862{
9e68cccc 3863 int num_events;
6c223761
KB		 3864 pqi_index_t oq_pi;
3865 pqi_index_t oq_ci;
3866 struct pqi_event_queue *event_queue;
3867 struct pqi_event_response *response;
6a50d6ad 3868 struct pqi_event *event;
6c223761
KB		 3869 int event_index;
3870
3871 event_queue = &ctrl_info->event_queue;
3872 num_events = 0;
6c223761
KB		 3873 oq_ci = event_queue->oq_ci_copy;
3874
3875 while (1) {
dac12fbc 3876 oq_pi = readl(event_queue->oq_pi);
9e68cccc 3877 if (oq_pi >= PQI_NUM_EVENT_QUEUE_ELEMENTS) {
5d1f03e6 3878 pqi_invalid_response(ctrl_info, PQI_EVENT_PI_OUT_OF_RANGE);
9e68cccc
KB		 3879 dev_err(&ctrl_info->pci_dev->dev,
3880 "event interrupt: producer index (%u) out of range (0-%u): consumer index: %u\n",
3881 oq_pi, PQI_NUM_EVENT_QUEUE_ELEMENTS - 1, oq_ci);
3882 return -1;
3883 }
3884
6c223761
KB		 3885 if (oq_pi == oq_ci)
3886 break;
3887
3888 num_events++;
9e68cccc 3889 response = event_queue->oq_element_array + (oq_ci * PQI_EVENT_OQ_ELEMENT_LENGTH);
6c223761 3890
583891c9 3891 event_index = pqi_event_type_to_event_index(response->event_type);
6c223761 3892
9e68cccc
KB		 3893 if (event_index >= 0 && response->request_acknowledge) {
3894 event = &ctrl_info->events[event_index];
3895 event->pending = true;
3896 event->event_type = response->event_type;
06b41e0d
KB		 3897 event->event_id = get_unaligned_le16(&response->event_id);
3898 event->additional_event_id =
3899 get_unaligned_le32(&response->additional_event_id);
9e68cccc 3900 if (event->event_type == PQI_EVENT_TYPE_OFA)
2790cd4d 3901 pqi_ofa_capture_event_payload(ctrl_info, event, response);
6c223761
KB		 3902 }
3903
3904 oq_ci = (oq_ci + 1) % PQI_NUM_EVENT_QUEUE_ELEMENTS;
3905 }
3906
3907 if (num_events) {
3908 event_queue->oq_ci_copy = oq_ci;
3909 writel(oq_ci, event_queue->oq_ci);
98f87667 3910 schedule_work(&ctrl_info->event_work);
6c223761
KB		 3911 }
3912
3913 return num_events;
3914}
3915
061ef06a
KB		 3916#define PQI_LEGACY_INTX_MASK 0x1
3917
583891c9 3918static inline void pqi_configure_legacy_intx(struct pqi_ctrl_info *ctrl_info, bool enable_intx)
061ef06a
KB		 3919{
3920 u32 intx_mask;
3921 struct pqi_device_registers __iomem *pqi_registers;
3922 volatile void __iomem *register_addr;
3923
3924 pqi_registers = ctrl_info->pqi_registers;
3925
3926 if (enable_intx)
3927 register_addr = &pqi_registers->legacy_intx_mask_clear;
3928 else
3929 register_addr = &pqi_registers->legacy_intx_mask_set;
3930
3931 intx_mask = readl(register_addr);
3932 intx_mask |= PQI_LEGACY_INTX_MASK;
3933 writel(intx_mask, register_addr);
3934}
3935
3936static void pqi_change_irq_mode(struct pqi_ctrl_info *ctrl_info,
3937 enum pqi_irq_mode new_mode)
3938{
3939 switch (ctrl_info->irq_mode) {
3940 case IRQ_MODE_MSIX:
3941 switch (new_mode) {
3942 case IRQ_MODE_MSIX:
3943 break;
3944 case IRQ_MODE_INTX:
3945 pqi_configure_legacy_intx(ctrl_info, true);
061ef06a
KB		 3946 sis_enable_intx(ctrl_info);
3947 break;
3948 case IRQ_MODE_NONE:
061ef06a
KB		 3949 break;
3950 }
3951 break;
3952 case IRQ_MODE_INTX:
3953 switch (new_mode) {
3954 case IRQ_MODE_MSIX:
3955 pqi_configure_legacy_intx(ctrl_info, false);
061ef06a
KB		 3956 sis_enable_msix(ctrl_info);
3957 break;
3958 case IRQ_MODE_INTX:
3959 break;
3960 case IRQ_MODE_NONE:
3961 pqi_configure_legacy_intx(ctrl_info, false);
061ef06a
KB		 3962 break;
3963 }
3964 break;
3965 case IRQ_MODE_NONE:
3966 switch (new_mode) {
3967 case IRQ_MODE_MSIX:
3968 sis_enable_msix(ctrl_info);
3969 break;
3970 case IRQ_MODE_INTX:
3971 pqi_configure_legacy_intx(ctrl_info, true);
3972 sis_enable_intx(ctrl_info);
3973 break;
3974 case IRQ_MODE_NONE:
3975 break;
3976 }
3977 break;
3978 }
3979
3980 ctrl_info->irq_mode = new_mode;
3981}
3982
3983#define PQI_LEGACY_INTX_PENDING 0x1
3984
3985static inline bool pqi_is_valid_irq(struct pqi_ctrl_info *ctrl_info)
3986{
3987 bool valid_irq;
3988 u32 intx_status;
3989
3990 switch (ctrl_info->irq_mode) {
3991 case IRQ_MODE_MSIX:
3992 valid_irq = true;
3993 break;
3994 case IRQ_MODE_INTX:
583891c9 3995 intx_status = readl(&ctrl_info->pqi_registers->legacy_intx_status);
061ef06a
KB		 3996 if (intx_status & PQI_LEGACY_INTX_PENDING)
3997 valid_irq = true;
3998 else
3999 valid_irq = false;
4000 break;
4001 case IRQ_MODE_NONE:
4002 default:
4003 valid_irq = false;
4004 break;
4005 }
4006
4007 return valid_irq;
4008}
4009
6c223761
KB		 4010static irqreturn_t pqi_irq_handler(int irq, void *data)
4011{
4012 struct pqi_ctrl_info *ctrl_info;
4013 struct pqi_queue_group *queue_group;
9e68cccc
KB		 4014 int num_io_responses_handled;
4015 int num_events_handled;
6c223761
KB		 4016
4017 queue_group = data;
4018 ctrl_info = queue_group->ctrl_info;
4019
061ef06a 4020 if (!pqi_is_valid_irq(ctrl_info))
6c223761
KB		 4021 return IRQ_NONE;
4022
9e68cccc
KB		 4023 num_io_responses_handled = pqi_process_io_intr(ctrl_info, queue_group);
4024 if (num_io_responses_handled < 0)
4025 goto out;
6c223761 4026
9e68cccc
KB		 4027 if (irq == ctrl_info->event_irq) {
4028 num_events_handled = pqi_process_event_intr(ctrl_info);
4029 if (num_events_handled < 0)
4030 goto out;
4031 } else {
4032 num_events_handled = 0;
4033 }
6c223761 4034
9e68cccc 4035 if (num_io_responses_handled + num_events_handled > 0)
6c223761
KB		 4036 atomic_inc(&ctrl_info->num_interrupts);
4037
4038 pqi_start_io(ctrl_info, queue_group, RAID_PATH, NULL);
4039 pqi_start_io(ctrl_info, queue_group, AIO_PATH, NULL);
4040
9e68cccc 4041out:
6c223761
KB		 4042 return IRQ_HANDLED;
4043}
4044
4045static int pqi_request_irqs(struct pqi_ctrl_info *ctrl_info)
4046{
d91d7820 4047 struct pci_dev *pci_dev = ctrl_info->pci_dev;
6c223761
KB		 4048 int i;
4049 int rc;
4050
d91d7820 4051 ctrl_info->event_irq = pci_irq_vector(pci_dev, 0);
6c223761
KB		 4052
4053 for (i = 0; i < ctrl_info->num_msix_vectors_enabled; i++) {
d91d7820 4054 rc = request_irq(pci_irq_vector(pci_dev, i), pqi_irq_handler, 0,
52198226 4055 DRIVER_NAME_SHORT, &ctrl_info->queue_groups[i]);
6c223761 4056 if (rc) {
d91d7820 4057 dev_err(&pci_dev->dev,
6c223761 4058 "irq %u init failed with error %d\n",
d91d7820 4059 pci_irq_vector(pci_dev, i), rc);
6c223761
KB		 4060 return rc;
4061 }
4062 ctrl_info->num_msix_vectors_initialized++;
4063 }
4064
4065 return 0;
4066}
4067
98bf061b
KB		 4068static void pqi_free_irqs(struct pqi_ctrl_info *ctrl_info)
4069{
4070 int i;
4071
4072 for (i = 0; i < ctrl_info->num_msix_vectors_initialized; i++)
4073 free_irq(pci_irq_vector(ctrl_info->pci_dev, i),
4074 &ctrl_info->queue_groups[i]);
4075
4076 ctrl_info->num_msix_vectors_initialized = 0;
4077}
4078
6c223761
KB		 4079static int pqi_enable_msix_interrupts(struct pqi_ctrl_info *ctrl_info)
4080{
98bf061b 4081 int num_vectors_enabled;
cf15c3e7
MM		 4082 unsigned int flags = PCI_IRQ_MSIX;
4083
4084 if (!pqi_disable_managed_interrupts)
4085 flags |= PCI_IRQ_AFFINITY;
6c223761 4086
98bf061b 4087 num_vectors_enabled = pci_alloc_irq_vectors(ctrl_info->pci_dev,
52198226 4088 PQI_MIN_MSIX_VECTORS, ctrl_info->num_queue_groups,
cf15c3e7 4089 flags);
98bf061b 4090 if (num_vectors_enabled < 0) {
6c223761 4091 dev_err(&ctrl_info->pci_dev->dev,
98bf061b
KB		 4092 "MSI-X init failed with error %d\n",
4093 num_vectors_enabled);
4094 return num_vectors_enabled;
6c223761
KB		 4095 }
4096
98bf061b 4097 ctrl_info->num_msix_vectors_enabled = num_vectors_enabled;
061ef06a 4098 ctrl_info->irq_mode = IRQ_MODE_MSIX;
6c223761
KB		 4099 return 0;
4100}
4101
98bf061b
KB		 4102static void pqi_disable_msix_interrupts(struct pqi_ctrl_info *ctrl_info)
4103{
4104 if (ctrl_info->num_msix_vectors_enabled) {
4105 pci_free_irq_vectors(ctrl_info->pci_dev);
4106 ctrl_info->num_msix_vectors_enabled = 0;
4107 }
4108}
4109
6c223761
KB		 4110static int pqi_alloc_operational_queues(struct pqi_ctrl_info *ctrl_info)
4111{
4112 unsigned int i;
4113 size_t alloc_length;
4114 size_t element_array_length_per_iq;
4115 size_t element_array_length_per_oq;
4116 void *element_array;
dac12fbc 4117 void __iomem *next_queue_index;
6c223761
KB		 4118 void *aligned_pointer;
4119 unsigned int num_inbound_queues;
4120 unsigned int num_outbound_queues;
4121 unsigned int num_queue_indexes;
4122 struct pqi_queue_group *queue_group;
4123
4124 element_array_length_per_iq =
4125 PQI_OPERATIONAL_IQ_ELEMENT_LENGTH *
4126 ctrl_info->num_elements_per_iq;
4127 element_array_length_per_oq =
4128 PQI_OPERATIONAL_OQ_ELEMENT_LENGTH *
4129 ctrl_info->num_elements_per_oq;
4130 num_inbound_queues = ctrl_info->num_queue_groups * 2;
4131 num_outbound_queues = ctrl_info->num_queue_groups;
4132 num_queue_indexes = (ctrl_info->num_queue_groups * 3) + 1;
4133
4134 aligned_pointer = NULL;
4135
4136 for (i = 0; i < num_inbound_queues; i++) {
4137 aligned_pointer = PTR_ALIGN(aligned_pointer,
4138 PQI_QUEUE_ELEMENT_ARRAY_ALIGNMENT);
4139 aligned_pointer += element_array_length_per_iq;
4140 }
4141
4142 for (i = 0; i < num_outbound_queues; i++) {
4143 aligned_pointer = PTR_ALIGN(aligned_pointer,
4144 PQI_QUEUE_ELEMENT_ARRAY_ALIGNMENT);
4145 aligned_pointer += element_array_length_per_oq;
4146 }
4147
4148 aligned_pointer = PTR_ALIGN(aligned_pointer,
4149 PQI_QUEUE_ELEMENT_ARRAY_ALIGNMENT);
4150 aligned_pointer += PQI_NUM_EVENT_QUEUE_ELEMENTS *
4151 PQI_EVENT_OQ_ELEMENT_LENGTH;
4152
4153 for (i = 0; i < num_queue_indexes; i++) {
4154 aligned_pointer = PTR_ALIGN(aligned_pointer,
4155 PQI_OPERATIONAL_INDEX_ALIGNMENT);
4156 aligned_pointer += sizeof(pqi_index_t);
4157 }
4158
4159 alloc_length = (size_t)aligned_pointer +
4160 PQI_QUEUE_ELEMENT_ARRAY_ALIGNMENT;
4161
e1d213bd
KB		 4162 alloc_length += PQI_EXTRA_SGL_MEMORY;
4163
6c223761 4164 ctrl_info->queue_memory_base =
750afb08
LC		 4165 dma_alloc_coherent(&ctrl_info->pci_dev->dev, alloc_length,
4166 &ctrl_info->queue_memory_base_dma_handle,
4167 GFP_KERNEL);
6c223761 4168
d87d5474 4169 if (!ctrl_info->queue_memory_base)
6c223761 4170 return -ENOMEM;
6c223761
KB		 4171
4172 ctrl_info->queue_memory_length = alloc_length;
4173
4174 element_array = PTR_ALIGN(ctrl_info->queue_memory_base,
4175 PQI_QUEUE_ELEMENT_ARRAY_ALIGNMENT);
4176
4177 for (i = 0; i < ctrl_info->num_queue_groups; i++) {
4178 queue_group = &ctrl_info->queue_groups[i];
4179 queue_group->iq_element_array[RAID_PATH] = element_array;
4180 queue_group->iq_element_array_bus_addr[RAID_PATH] =
4181 ctrl_info->queue_memory_base_dma_handle +
4182 (element_array - ctrl_info->queue_memory_base);
4183 element_array += element_array_length_per_iq;
4184 element_array = PTR_ALIGN(element_array,
4185 PQI_QUEUE_ELEMENT_ARRAY_ALIGNMENT);
4186 queue_group->iq_element_array[AIO_PATH] = element_array;
4187 queue_group->iq_element_array_bus_addr[AIO_PATH] =
4188 ctrl_info->queue_memory_base_dma_handle +
4189 (element_array - ctrl_info->queue_memory_base);
4190 element_array += element_array_length_per_iq;
4191 element_array = PTR_ALIGN(element_array,
4192 PQI_QUEUE_ELEMENT_ARRAY_ALIGNMENT);
4193 }
4194
4195 for (i = 0; i < ctrl_info->num_queue_groups; i++) {
4196 queue_group = &ctrl_info->queue_groups[i];
4197 queue_group->oq_element_array = element_array;
4198 queue_group->oq_element_array_bus_addr =
4199 ctrl_info->queue_memory_base_dma_handle +
4200 (element_array - ctrl_info->queue_memory_base);
4201 element_array += element_array_length_per_oq;
4202 element_array = PTR_ALIGN(element_array,
4203 PQI_QUEUE_ELEMENT_ARRAY_ALIGNMENT);
4204 }
4205
4206 ctrl_info->event_queue.oq_element_array = element_array;
4207 ctrl_info->event_queue.oq_element_array_bus_addr =
4208 ctrl_info->queue_memory_base_dma_handle +
4209 (element_array - ctrl_info->queue_memory_base);
4210 element_array += PQI_NUM_EVENT_QUEUE_ELEMENTS *
4211 PQI_EVENT_OQ_ELEMENT_LENGTH;
4212
dac12fbc 4213 next_queue_index = (void __iomem *)PTR_ALIGN(element_array,
6c223761
KB		 4214 PQI_OPERATIONAL_INDEX_ALIGNMENT);
4215
4216 for (i = 0; i < ctrl_info->num_queue_groups; i++) {
4217 queue_group = &ctrl_info->queue_groups[i];
4218 queue_group->iq_ci[RAID_PATH] = next_queue_index;
4219 queue_group->iq_ci_bus_addr[RAID_PATH] =
4220 ctrl_info->queue_memory_base_dma_handle +
dac12fbc
KB		 4221 (next_queue_index -
4222 (void __iomem *)ctrl_info->queue_memory_base);
6c223761
KB		 4223 next_queue_index += sizeof(pqi_index_t);
4224 next_queue_index = PTR_ALIGN(next_queue_index,
4225 PQI_OPERATIONAL_INDEX_ALIGNMENT);
4226 queue_group->iq_ci[AIO_PATH] = next_queue_index;
4227 queue_group->iq_ci_bus_addr[AIO_PATH] =
4228 ctrl_info->queue_memory_base_dma_handle +
dac12fbc
KB		 4229 (next_queue_index -
4230 (void __iomem *)ctrl_info->queue_memory_base);
6c223761
KB		 4231 next_queue_index += sizeof(pqi_index_t);
4232 next_queue_index = PTR_ALIGN(next_queue_index,
4233 PQI_OPERATIONAL_INDEX_ALIGNMENT);
4234 queue_group->oq_pi = next_queue_index;
4235 queue_group->oq_pi_bus_addr =
4236 ctrl_info->queue_memory_base_dma_handle +
dac12fbc
KB		 4237 (next_queue_index -
4238 (void __iomem *)ctrl_info->queue_memory_base);
6c223761
KB		 4239 next_queue_index += sizeof(pqi_index_t);
4240 next_queue_index = PTR_ALIGN(next_queue_index,
4241 PQI_OPERATIONAL_INDEX_ALIGNMENT);
4242 }
4243
4244 ctrl_info->event_queue.oq_pi = next_queue_index;
4245 ctrl_info->event_queue.oq_pi_bus_addr =
4246 ctrl_info->queue_memory_base_dma_handle +
dac12fbc
KB		 4247 (next_queue_index -
4248 (void __iomem *)ctrl_info->queue_memory_base);
6c223761
KB		 4249
4250 return 0;
4251}
4252
4253static void pqi_init_operational_queues(struct pqi_ctrl_info *ctrl_info)
4254{
4255 unsigned int i;
4256 u16 next_iq_id = PQI_MIN_OPERATIONAL_QUEUE_ID;
4257 u16 next_oq_id = PQI_MIN_OPERATIONAL_QUEUE_ID;
4258
4259 /*
4260 * Initialize the backpointers to the controller structure in
4261 * each operational queue group structure.
4262 */
4263 for (i = 0; i < ctrl_info->num_queue_groups; i++)
4264 ctrl_info->queue_groups[i].ctrl_info = ctrl_info;
4265
4266 /*
4267 * Assign IDs to all operational queues. Note that the IDs
4268 * assigned to operational IQs are independent of the IDs
4269 * assigned to operational OQs.
4270 */
4271 ctrl_info->event_queue.oq_id = next_oq_id++;
4272 for (i = 0; i < ctrl_info->num_queue_groups; i++) {
4273 ctrl_info->queue_groups[i].iq_id[RAID_PATH] = next_iq_id++;
4274 ctrl_info->queue_groups[i].iq_id[AIO_PATH] = next_iq_id++;
4275 ctrl_info->queue_groups[i].oq_id = next_oq_id++;
4276 }
4277
4278 /*
4279 * Assign MSI-X table entry indexes to all queues. Note that the
4280 * interrupt for the event queue is shared with the first queue group.
4281 */
4282 ctrl_info->event_queue.int_msg_num = 0;
4283 for (i = 0; i < ctrl_info->num_queue_groups; i++)
4284 ctrl_info->queue_groups[i].int_msg_num = i;
4285
4286 for (i = 0; i < ctrl_info->num_queue_groups; i++) {
4287 spin_lock_init(&ctrl_info->queue_groups[i].submit_lock[0]);
4288 spin_lock_init(&ctrl_info->queue_groups[i].submit_lock[1]);
4289 INIT_LIST_HEAD(&ctrl_info->queue_groups[i].request_list[0]);
4290 INIT_LIST_HEAD(&ctrl_info->queue_groups[i].request_list[1]);
4291 }
4292}
4293
4294static int pqi_alloc_admin_queues(struct pqi_ctrl_info *ctrl_info)
4295{
4296 size_t alloc_length;
4297 struct pqi_admin_queues_aligned *admin_queues_aligned;
4298 struct pqi_admin_queues *admin_queues;
4299
4300 alloc_length = sizeof(struct pqi_admin_queues_aligned) +
4301 PQI_QUEUE_ELEMENT_ARRAY_ALIGNMENT;
4302
4303 ctrl_info->admin_queue_memory_base =
750afb08
LC		 4304 dma_alloc_coherent(&ctrl_info->pci_dev->dev, alloc_length,
4305 &ctrl_info->admin_queue_memory_base_dma_handle,
4306 GFP_KERNEL);
6c223761
KB		 4307
4308 if (!ctrl_info->admin_queue_memory_base)
4309 return -ENOMEM;
4310
4311 ctrl_info->admin_queue_memory_length = alloc_length;
4312
4313 admin_queues = &ctrl_info->admin_queues;
4314 admin_queues_aligned = PTR_ALIGN(ctrl_info->admin_queue_memory_base,
4315 PQI_QUEUE_ELEMENT_ARRAY_ALIGNMENT);
4316 admin_queues->iq_element_array =
4317 &admin_queues_aligned->iq_element_array;
4318 admin_queues->oq_element_array =
4319 &admin_queues_aligned->oq_element_array;
583891c9
KB		 4320 admin_queues->iq_ci =
4321 (pqi_index_t __iomem *)&admin_queues_aligned->iq_ci;
dac12fbc
KB		 4322 admin_queues->oq_pi =
4323 (pqi_index_t __iomem *)&admin_queues_aligned->oq_pi;
6c223761
KB		 4324
4325 admin_queues->iq_element_array_bus_addr =
4326 ctrl_info->admin_queue_memory_base_dma_handle +
4327 (admin_queues->iq_element_array -
4328 ctrl_info->admin_queue_memory_base);
4329 admin_queues->oq_element_array_bus_addr =
4330 ctrl_info->admin_queue_memory_base_dma_handle +
4331 (admin_queues->oq_element_array -
4332 ctrl_info->admin_queue_memory_base);
4333 admin_queues->iq_ci_bus_addr =
4334 ctrl_info->admin_queue_memory_base_dma_handle +
583891c9
KB		 4335 ((void __iomem *)admin_queues->iq_ci -
4336 (void __iomem *)ctrl_info->admin_queue_memory_base);
6c223761
KB		 4337 admin_queues->oq_pi_bus_addr =
4338 ctrl_info->admin_queue_memory_base_dma_handle +
dac12fbc
KB		 4339 ((void __iomem *)admin_queues->oq_pi -
4340 (void __iomem *)ctrl_info->admin_queue_memory_base);
6c223761
KB		 4341
4342 return 0;
4343}
4344
42dc0426 4345#define PQI_ADMIN_QUEUE_CREATE_TIMEOUT_JIFFIES HZ
6c223761
KB		 4346#define PQI_ADMIN_QUEUE_CREATE_POLL_INTERVAL_MSECS 1
4347
4348static int pqi_create_admin_queues(struct pqi_ctrl_info *ctrl_info)
4349{
4350 struct pqi_device_registers __iomem *pqi_registers;
4351 struct pqi_admin_queues *admin_queues;
4352 unsigned long timeout;
4353 u8 status;
4354 u32 reg;
4355
4356 pqi_registers = ctrl_info->pqi_registers;
4357 admin_queues = &ctrl_info->admin_queues;
4358
4359 writeq((u64)admin_queues->iq_element_array_bus_addr,
4360 &pqi_registers->admin_iq_element_array_addr);
4361 writeq((u64)admin_queues->oq_element_array_bus_addr,
4362 &pqi_registers->admin_oq_element_array_addr);
4363 writeq((u64)admin_queues->iq_ci_bus_addr,
4364 &pqi_registers->admin_iq_ci_addr);
4365 writeq((u64)admin_queues->oq_pi_bus_addr,
4366 &pqi_registers->admin_oq_pi_addr);
4367
4368 reg = PQI_ADMIN_IQ_NUM_ELEMENTS |
e655d469 4369 (PQI_ADMIN_OQ_NUM_ELEMENTS << 8) |
6c223761
KB		 4370 (admin_queues->int_msg_num << 16);
4371 writel(reg, &pqi_registers->admin_iq_num_elements);
583891c9 4372
6c223761
KB		 4373 writel(PQI_CREATE_ADMIN_QUEUE_PAIR,
4374 &pqi_registers->function_and_status_code);
4375
4376 timeout = PQI_ADMIN_QUEUE_CREATE_TIMEOUT_JIFFIES + jiffies;
4377 while (1) {
987d3560 4378 msleep(PQI_ADMIN_QUEUE_CREATE_POLL_INTERVAL_MSECS);
6c223761
KB		 4379 status = readb(&pqi_registers->function_and_status_code);
4380 if (status == PQI_STATUS_IDLE)
4381 break;
4382 if (time_after(jiffies, timeout))
4383 return -ETIMEDOUT;
6c223761
KB		 4384 }
4385
4386 /*
4387 * The offset registers are not initialized to the correct
4388 * offsets until *after* the create admin queue pair command
4389 * completes successfully.
4390 */
4391 admin_queues->iq_pi = ctrl_info->iomem_base +
4392 PQI_DEVICE_REGISTERS_OFFSET +
4393 readq(&pqi_registers->admin_iq_pi_offset);
4394 admin_queues->oq_ci = ctrl_info->iomem_base +
4395 PQI_DEVICE_REGISTERS_OFFSET +
4396 readq(&pqi_registers->admin_oq_ci_offset);
4397
4398 return 0;
4399}
4400
4401static void pqi_submit_admin_request(struct pqi_ctrl_info *ctrl_info,
4402 struct pqi_general_admin_request *request)
4403{
4404 struct pqi_admin_queues *admin_queues;
4405 void *next_element;
4406 pqi_index_t iq_pi;
4407
4408 admin_queues = &ctrl_info->admin_queues;
4409 iq_pi = admin_queues->iq_pi_copy;
4410
4411 next_element = admin_queues->iq_element_array +
4412 (iq_pi * PQI_ADMIN_IQ_ELEMENT_LENGTH);
4413
4414 memcpy(next_element, request, sizeof(*request));
4415
4416 iq_pi = (iq_pi + 1) % PQI_ADMIN_IQ_NUM_ELEMENTS;
4417 admin_queues->iq_pi_copy = iq_pi;
4418
4419 /*
4420 * This write notifies the controller that an IU is available to be
4421 * processed.
4422 */
4423 writel(iq_pi, admin_queues->iq_pi);
4424}
4425
13bede67
KB		 4426#define PQI_ADMIN_REQUEST_TIMEOUT_SECS 60
4427
6c223761
KB		 4428static int pqi_poll_for_admin_response(struct pqi_ctrl_info *ctrl_info,
4429 struct pqi_general_admin_response *response)
4430{
4431 struct pqi_admin_queues *admin_queues;
4432 pqi_index_t oq_pi;
4433 pqi_index_t oq_ci;
4434 unsigned long timeout;
4435
4436 admin_queues = &ctrl_info->admin_queues;
4437 oq_ci = admin_queues->oq_ci_copy;
4438
42dc0426 4439 timeout = (PQI_ADMIN_REQUEST_TIMEOUT_SECS * HZ) + jiffies;
6c223761
KB		 4440
4441 while (1) {
dac12fbc 4442 oq_pi = readl(admin_queues->oq_pi);
6c223761
KB		 4443 if (oq_pi != oq_ci)
4444 break;
4445 if (time_after(jiffies, timeout)) {
4446 dev_err(&ctrl_info->pci_dev->dev,
4447 "timed out waiting for admin response\n");
4448 return -ETIMEDOUT;
4449 }
13bede67
KB		 4450 if (!sis_is_firmware_running(ctrl_info))
4451 return -ENXIO;
6c223761
KB		 4452 usleep_range(1000, 2000);
4453 }
4454
4455 memcpy(response, admin_queues->oq_element_array +
4456 (oq_ci * PQI_ADMIN_OQ_ELEMENT_LENGTH), sizeof(*response));
4457
4458 oq_ci = (oq_ci + 1) % PQI_ADMIN_OQ_NUM_ELEMENTS;
4459 admin_queues->oq_ci_copy = oq_ci;
4460 writel(oq_ci, admin_queues->oq_ci);
4461
4462 return 0;
4463}
4464
4465static void pqi_start_io(struct pqi_ctrl_info *ctrl_info,
4466 struct pqi_queue_group *queue_group, enum pqi_io_path path,
4467 struct pqi_io_request *io_request)
4468{
4469 struct pqi_io_request *next;
4470 void *next_element;
4471 pqi_index_t iq_pi;
4472 pqi_index_t iq_ci;
4473 size_t iu_length;
4474 unsigned long flags;
4475 unsigned int num_elements_needed;
4476 unsigned int num_elements_to_end_of_queue;
4477 size_t copy_count;
4478 struct pqi_iu_header *request;
4479
4480 spin_lock_irqsave(&queue_group->submit_lock[path], flags);
4481
376fb880
KB		 4482 if (io_request) {
4483 io_request->queue_group = queue_group;
6c223761
KB		 4484 list_add_tail(&io_request->request_list_entry,
4485 &queue_group->request_list[path]);
376fb880 4486 }
6c223761
KB		 4487
4488 iq_pi = queue_group->iq_pi_copy[path];
4489
4490 list_for_each_entry_safe(io_request, next,
4491 &queue_group->request_list[path], request_list_entry) {
4492
4493 request = io_request->iu;
4494
4495 iu_length = get_unaligned_le16(&request->iu_length) +
4496 PQI_REQUEST_HEADER_LENGTH;
4497 num_elements_needed =
4498 DIV_ROUND_UP(iu_length,
4499 PQI_OPERATIONAL_IQ_ELEMENT_LENGTH);
4500
dac12fbc 4501 iq_ci = readl(queue_group->iq_ci[path]);
6c223761
KB		 4502
4503 if (num_elements_needed > pqi_num_elements_free(iq_pi, iq_ci,
4504 ctrl_info->num_elements_per_iq))
4505 break;
4506
4507 put_unaligned_le16(queue_group->oq_id,
4508 &request->response_queue_id);
4509
4510 next_element = queue_group->iq_element_array[path] +
4511 (iq_pi * PQI_OPERATIONAL_IQ_ELEMENT_LENGTH);
4512
4513 num_elements_to_end_of_queue =
4514 ctrl_info->num_elements_per_iq - iq_pi;
4515
4516 if (num_elements_needed <= num_elements_to_end_of_queue) {
4517 memcpy(next_element, request, iu_length);
4518 } else {
4519 copy_count = num_elements_to_end_of_queue *
4520 PQI_OPERATIONAL_IQ_ELEMENT_LENGTH;
4521 memcpy(next_element, request, copy_count);
4522 memcpy(queue_group->iq_element_array[path],
4523 (u8 *)request + copy_count,
4524 iu_length - copy_count);
4525 }
4526
4527 iq_pi = (iq_pi + num_elements_needed) %
4528 ctrl_info->num_elements_per_iq;
4529
4530 list_del(&io_request->request_list_entry);
4531 }
4532
4533 if (iq_pi != queue_group->iq_pi_copy[path]) {
4534 queue_group->iq_pi_copy[path] = iq_pi;
4535 /*
4536 * This write notifies the controller that one or more IUs are
4537 * available to be processed.
4538 */
4539 writel(iq_pi, queue_group->iq_pi[path]);
4540 }
4541
4542 spin_unlock_irqrestore(&queue_group->submit_lock[path], flags);
4543}
4544
1f37e992
KB		 4545#define PQI_WAIT_FOR_COMPLETION_IO_TIMEOUT_SECS 10
4546
4547static int pqi_wait_for_completion_io(struct pqi_ctrl_info *ctrl_info,
4548 struct completion *wait)
4549{
4550 int rc;
1f37e992
KB		 4551
4552 while (1) {
4553 if (wait_for_completion_io_timeout(wait,
42dc0426 4554 PQI_WAIT_FOR_COMPLETION_IO_TIMEOUT_SECS * HZ)) {
1f37e992
KB		 4555 rc = 0;
4556 break;
4557 }
4558
4559 pqi_check_ctrl_health(ctrl_info);
4560 if (pqi_ctrl_offline(ctrl_info)) {
4561 rc = -ENXIO;
4562 break;
4563 }
1f37e992
KB		 4564 }
4565
4566 return rc;
4567}
4568
6c223761
KB		 4569static void pqi_raid_synchronous_complete(struct pqi_io_request *io_request,
4570 void *context)
4571{
4572 struct completion *waiting = context;
4573
4574 complete(waiting);
4575}
4576
694c5d5b
KB		 4577static int pqi_process_raid_io_error_synchronous(
4578 struct pqi_raid_error_info *error_info)
26b390ab
KB		 4579{
4580 int rc = -EIO;
4581
4582 switch (error_info->data_out_result) {
4583 case PQI_DATA_IN_OUT_GOOD:
4584 if (error_info->status == SAM_STAT_GOOD)
4585 rc = 0;
4586 break;
4587 case PQI_DATA_IN_OUT_UNDERFLOW:
4588 if (error_info->status == SAM_STAT_GOOD ||
4589 error_info->status == SAM_STAT_CHECK_CONDITION)
4590 rc = 0;
4591 break;
4592 case PQI_DATA_IN_OUT_ABORTED:
4593 rc = PQI_CMD_STATUS_ABORTED;
4594 break;
4595 }
4596
4597 return rc;
4598}
4599
ae0c189d
KB		 4600static inline bool pqi_is_blockable_request(struct pqi_iu_header *request)
4601{
4602 return (request->driver_flags & PQI_DRIVER_NONBLOCKABLE_REQUEST) == 0;
4603}
4604
6c223761
KB		 4605static int pqi_submit_raid_request_synchronous(struct pqi_ctrl_info *ctrl_info,
4606 struct pqi_iu_header *request, unsigned int flags,
ae0c189d 4607 struct pqi_raid_error_info *error_info)
6c223761 4608{
957c5ab1 4609 int rc = 0;
6c223761 4610 struct pqi_io_request *io_request;
6c223761 4611 size_t iu_length;
957c5ab1 4612 DECLARE_COMPLETION_ONSTACK(wait);
6c223761 4613
6c223761
KB		 4614 if (flags & PQI_SYNC_FLAGS_INTERRUPTABLE) {
4615 if (down_interruptible(&ctrl_info->sync_request_sem))
4616 return -ERESTARTSYS;
4617 } else {
ae0c189d 4618 down(&ctrl_info->sync_request_sem);
6c223761
KB		 4619 }
4620
7561a7e4 4621 pqi_ctrl_busy(ctrl_info);
ae0c189d
KB		 4622 /*
4623 * Wait for other admin queue updates such as;
4624 * config table changes, OFA memory updates, ...
4625 */
4626 if (pqi_is_blockable_request(request))
4627 pqi_wait_if_ctrl_blocked(ctrl_info);
7561a7e4 4628
376fb880
KB		 4629 if (pqi_ctrl_offline(ctrl_info)) {
4630 rc = -ENXIO;
4631 goto out;
4632 }
4633
b27ac2fa 4634 io_request = pqi_alloc_io_request(ctrl_info, NULL);
6c223761
KB		 4635
4636 put_unaligned_le16(io_request->index,
4637 &(((struct pqi_raid_path_request *)request)->request_id));
4638
4639 if (request->iu_type == PQI_REQUEST_IU_RAID_PATH_IO)
4640 ((struct pqi_raid_path_request *)request)->error_index =
4641 ((struct pqi_raid_path_request *)request)->request_id;
4642
4643 iu_length = get_unaligned_le16(&request->iu_length) +
4644 PQI_REQUEST_HEADER_LENGTH;
4645 memcpy(io_request->iu, request, iu_length);
4646
957c5ab1
KB		 4647 io_request->io_complete_callback = pqi_raid_synchronous_complete;
4648 io_request->context = &wait;
4649
583891c9 4650 pqi_start_io(ctrl_info, &ctrl_info->queue_groups[PQI_DEFAULT_QUEUE_GROUP], RAID_PATH,
957c5ab1
KB		 4651 io_request);
4652
ae0c189d 4653 pqi_wait_for_completion_io(ctrl_info, &wait);
6c223761
KB		 4654
4655 if (error_info) {
4656 if (io_request->error_info)
583891c9 4657 memcpy(error_info, io_request->error_info, sizeof(*error_info));
6c223761
KB		 4658 else
4659 memset(error_info, 0, sizeof(*error_info));
4660 } else if (rc == 0 && io_request->error_info) {
583891c9 4661 rc = pqi_process_raid_io_error_synchronous(io_request->error_info);
6c223761
KB		 4662 }
4663
4664 pqi_free_io_request(io_request);
4665
7561a7e4 4666out:
ae0c189d 4667 pqi_ctrl_unbusy(ctrl_info);
6c223761
KB		 4668 up(&ctrl_info->sync_request_sem);
4669
4670 return rc;
4671}
4672
4673static int pqi_validate_admin_response(
4674 struct pqi_general_admin_response *response, u8 expected_function_code)
4675{
4676 if (response->header.iu_type != PQI_RESPONSE_IU_GENERAL_ADMIN)
4677 return -EINVAL;
4678
4679 if (get_unaligned_le16(&response->header.iu_length) !=
4680 PQI_GENERAL_ADMIN_IU_LENGTH)
4681 return -EINVAL;
4682
4683 if (response->function_code != expected_function_code)
4684 return -EINVAL;
4685
4686 if (response->status != PQI_GENERAL_ADMIN_STATUS_SUCCESS)
4687 return -EINVAL;
4688
4689 return 0;
4690}
4691
4692static int pqi_submit_admin_request_synchronous(
4693 struct pqi_ctrl_info *ctrl_info,
4694 struct pqi_general_admin_request *request,
4695 struct pqi_general_admin_response *response)
4696{
4697 int rc;
4698
4699 pqi_submit_admin_request(ctrl_info, request);
4700
4701 rc = pqi_poll_for_admin_response(ctrl_info, response);
4702
4703 if (rc == 0)
ae0c189d 4704 rc = pqi_validate_admin_response(response, request->function_code);
6c223761
KB		 4705
4706 return rc;
4707}
4708
4709static int pqi_report_device_capability(struct pqi_ctrl_info *ctrl_info)
4710{
4711 int rc;
4712 struct pqi_general_admin_request request;
4713 struct pqi_general_admin_response response;
4714 struct pqi_device_capability *capability;
4715 struct pqi_iu_layer_descriptor *sop_iu_layer_descriptor;
4716
4717 capability = kmalloc(sizeof(*capability), GFP_KERNEL);
4718 if (!capability)
4719 return -ENOMEM;
4720
4721 memset(&request, 0, sizeof(request));
4722
4723 request.header.iu_type = PQI_REQUEST_IU_GENERAL_ADMIN;
4724 put_unaligned_le16(PQI_GENERAL_ADMIN_IU_LENGTH,
4725 &request.header.iu_length);
4726 request.function_code =
4727 PQI_GENERAL_ADMIN_FUNCTION_REPORT_DEVICE_CAPABILITY;
4728 put_unaligned_le32(sizeof(*capability),
4729 &request.data.report_device_capability.buffer_length);
4730
4731 rc = pqi_map_single(ctrl_info->pci_dev,
4732 &request.data.report_device_capability.sg_descriptor,
4733 capability, sizeof(*capability),
6917a9cc 4734 DMA_FROM_DEVICE);
6c223761
KB		 4735 if (rc)
4736 goto out;
4737
583891c9 4738 rc = pqi_submit_admin_request_synchronous(ctrl_info, &request, &response);
6c223761
KB		 4739
4740 pqi_pci_unmap(ctrl_info->pci_dev,
4741 &request.data.report_device_capability.sg_descriptor, 1,
6917a9cc 4742 DMA_FROM_DEVICE);
6c223761
KB		 4743
4744 if (rc)
4745 goto out;
4746
4747 if (response.status != PQI_GENERAL_ADMIN_STATUS_SUCCESS) {
4748 rc = -EIO;
4749 goto out;
4750 }
4751
4752 ctrl_info->max_inbound_queues =
4753 get_unaligned_le16(&capability->max_inbound_queues);
4754 ctrl_info->max_elements_per_iq =
4755 get_unaligned_le16(&capability->max_elements_per_iq);
4756 ctrl_info->max_iq_element_length =
4757 get_unaligned_le16(&capability->max_iq_element_length)
4758 * 16;
4759 ctrl_info->max_outbound_queues =
4760 get_unaligned_le16(&capability->max_outbound_queues);
4761 ctrl_info->max_elements_per_oq =
4762 get_unaligned_le16(&capability->max_elements_per_oq);
4763 ctrl_info->max_oq_element_length =
4764 get_unaligned_le16(&capability->max_oq_element_length)
4765 * 16;
4766
4767 sop_iu_layer_descriptor =
4768 &capability->iu_layer_descriptors[PQI_PROTOCOL_SOP];
4769
4770 ctrl_info->max_inbound_iu_length_per_firmware =
4771 get_unaligned_le16(
4772 &sop_iu_layer_descriptor->max_inbound_iu_length);
4773 ctrl_info->inbound_spanning_supported =
4774 sop_iu_layer_descriptor->inbound_spanning_supported;
4775 ctrl_info->outbound_spanning_supported =
4776 sop_iu_layer_descriptor->outbound_spanning_supported;
4777
4778out:
4779 kfree(capability);
4780
4781 return rc;
4782}
4783
4784static int pqi_validate_device_capability(struct pqi_ctrl_info *ctrl_info)
4785{
4786 if (ctrl_info->max_iq_element_length <
4787 PQI_OPERATIONAL_IQ_ELEMENT_LENGTH) {
4788 dev_err(&ctrl_info->pci_dev->dev,
4789 "max. inbound queue element length of %d is less than the required length of %d\n",
4790 ctrl_info->max_iq_element_length,
4791 PQI_OPERATIONAL_IQ_ELEMENT_LENGTH);
4792 return -EINVAL;
4793 }
4794
4795 if (ctrl_info->max_oq_element_length <
4796 PQI_OPERATIONAL_OQ_ELEMENT_LENGTH) {
4797 dev_err(&ctrl_info->pci_dev->dev,
4798 "max. outbound queue element length of %d is less than the required length of %d\n",
4799 ctrl_info->max_oq_element_length,
4800 PQI_OPERATIONAL_OQ_ELEMENT_LENGTH);
4801 return -EINVAL;
4802 }
4803
4804 if (ctrl_info->max_inbound_iu_length_per_firmware <
4805 PQI_OPERATIONAL_IQ_ELEMENT_LENGTH) {
4806 dev_err(&ctrl_info->pci_dev->dev,
4807 "max. inbound IU length of %u is less than the min. required length of %d\n",
4808 ctrl_info->max_inbound_iu_length_per_firmware,
4809 PQI_OPERATIONAL_IQ_ELEMENT_LENGTH);
4810 return -EINVAL;
4811 }
4812
77668f41
KB		 4813 if (!ctrl_info->inbound_spanning_supported) {
4814 dev_err(&ctrl_info->pci_dev->dev,
4815 "the controller does not support inbound spanning\n");
4816 return -EINVAL;
4817 }
4818
4819 if (ctrl_info->outbound_spanning_supported) {
4820 dev_err(&ctrl_info->pci_dev->dev,
4821 "the controller supports outbound spanning but this driver does not\n");
4822 return -EINVAL;
4823 }
4824
6c223761
KB		 4825 return 0;
4826}
4827
6c223761
KB		 4828static int pqi_create_event_queue(struct pqi_ctrl_info *ctrl_info)
4829{
4830 int rc;
4831 struct pqi_event_queue *event_queue;
4832 struct pqi_general_admin_request request;
4833 struct pqi_general_admin_response response;
4834
4835 event_queue = &ctrl_info->event_queue;
4836
4837 /*
4838 * Create OQ (Outbound Queue - device to host queue) to dedicate
4839 * to events.
4840 */
4841 memset(&request, 0, sizeof(request));
4842 request.header.iu_type = PQI_REQUEST_IU_GENERAL_ADMIN;
4843 put_unaligned_le16(PQI_GENERAL_ADMIN_IU_LENGTH,
4844 &request.header.iu_length);
4845 request.function_code = PQI_GENERAL_ADMIN_FUNCTION_CREATE_OQ;
4846 put_unaligned_le16(event_queue->oq_id,
4847 &request.data.create_operational_oq.queue_id);
4848 put_unaligned_le64((u64)event_queue->oq_element_array_bus_addr,
4849 &request.data.create_operational_oq.element_array_addr);
4850 put_unaligned_le64((u64)event_queue->oq_pi_bus_addr,
4851 &request.data.create_operational_oq.pi_addr);
4852 put_unaligned_le16(PQI_NUM_EVENT_QUEUE_ELEMENTS,
4853 &request.data.create_operational_oq.num_elements);
4854 put_unaligned_le16(PQI_EVENT_OQ_ELEMENT_LENGTH / 16,
4855 &request.data.create_operational_oq.element_length);
4856 request.data.create_operational_oq.queue_protocol = PQI_PROTOCOL_SOP;
4857 put_unaligned_le16(event_queue->int_msg_num,
4858 &request.data.create_operational_oq.int_msg_num);
4859
4860 rc = pqi_submit_admin_request_synchronous(ctrl_info, &request,
4861 &response);
4862 if (rc)
4863 return rc;
4864
4865 event_queue->oq_ci = ctrl_info->iomem_base +
4866 PQI_DEVICE_REGISTERS_OFFSET +
4867 get_unaligned_le64(
4868 &response.data.create_operational_oq.oq_ci_offset);
4869
4870 return 0;
4871}
4872
061ef06a
KB		 4873static int pqi_create_queue_group(struct pqi_ctrl_info *ctrl_info,
4874 unsigned int group_number)
6c223761 4875{
6c223761
KB		 4876 int rc;
4877 struct pqi_queue_group *queue_group;
4878 struct pqi_general_admin_request request;
4879 struct pqi_general_admin_response response;
4880
061ef06a 4881 queue_group = &ctrl_info->queue_groups[group_number];
6c223761
KB		 4882
4883 /*
4884 * Create IQ (Inbound Queue - host to device queue) for
4885 * RAID path.
4886 */
4887 memset(&request, 0, sizeof(request));
4888 request.header.iu_type = PQI_REQUEST_IU_GENERAL_ADMIN;
4889 put_unaligned_le16(PQI_GENERAL_ADMIN_IU_LENGTH,
4890 &request.header.iu_length);
4891 request.function_code = PQI_GENERAL_ADMIN_FUNCTION_CREATE_IQ;
4892 put_unaligned_le16(queue_group->iq_id[RAID_PATH],
4893 &request.data.create_operational_iq.queue_id);
4894 put_unaligned_le64(
4895 (u64)queue_group->iq_element_array_bus_addr[RAID_PATH],
4896 &request.data.create_operational_iq.element_array_addr);
4897 put_unaligned_le64((u64)queue_group->iq_ci_bus_addr[RAID_PATH],
4898 &request.data.create_operational_iq.ci_addr);
4899 put_unaligned_le16(ctrl_info->num_elements_per_iq,
4900 &request.data.create_operational_iq.num_elements);
4901 put_unaligned_le16(PQI_OPERATIONAL_IQ_ELEMENT_LENGTH / 16,
4902 &request.data.create_operational_iq.element_length);
4903 request.data.create_operational_iq.queue_protocol = PQI_PROTOCOL_SOP;
4904
4905 rc = pqi_submit_admin_request_synchronous(ctrl_info, &request,
4906 &response);
4907 if (rc) {
4908 dev_err(&ctrl_info->pci_dev->dev,
4909 "error creating inbound RAID queue\n");
4910 return rc;
4911 }
4912
4913 queue_group->iq_pi[RAID_PATH] = ctrl_info->iomem_base +
4914 PQI_DEVICE_REGISTERS_OFFSET +
4915 get_unaligned_le64(
4916 &response.data.create_operational_iq.iq_pi_offset);
4917
4918 /*
4919 * Create IQ (Inbound Queue - host to device queue) for
4920 * Advanced I/O (AIO) path.
4921 */
4922 memset(&request, 0, sizeof(request));
4923 request.header.iu_type = PQI_REQUEST_IU_GENERAL_ADMIN;
4924 put_unaligned_le16(PQI_GENERAL_ADMIN_IU_LENGTH,
4925 &request.header.iu_length);
4926 request.function_code = PQI_GENERAL_ADMIN_FUNCTION_CREATE_IQ;
4927 put_unaligned_le16(queue_group->iq_id[AIO_PATH],
4928 &request.data.create_operational_iq.queue_id);
4929 put_unaligned_le64((u64)queue_group->
4930 iq_element_array_bus_addr[AIO_PATH],
4931 &request.data.create_operational_iq.element_array_addr);
4932 put_unaligned_le64((u64)queue_group->iq_ci_bus_addr[AIO_PATH],
4933 &request.data.create_operational_iq.ci_addr);
4934 put_unaligned_le16(ctrl_info->num_elements_per_iq,
4935 &request.data.create_operational_iq.num_elements);
4936 put_unaligned_le16(PQI_OPERATIONAL_IQ_ELEMENT_LENGTH / 16,
4937 &request.data.create_operational_iq.element_length);
4938 request.data.create_operational_iq.queue_protocol = PQI_PROTOCOL_SOP;
4939
4940 rc = pqi_submit_admin_request_synchronous(ctrl_info, &request,
4941 &response);
4942 if (rc) {
4943 dev_err(&ctrl_info->pci_dev->dev,
4944 "error creating inbound AIO queue\n");
339faa81 4945 return rc;
6c223761
KB		 4946 }
4947
4948 queue_group->iq_pi[AIO_PATH] = ctrl_info->iomem_base +
4949 PQI_DEVICE_REGISTERS_OFFSET +
4950 get_unaligned_le64(
4951 &response.data.create_operational_iq.iq_pi_offset);
4952
4953 /*
4954 * Designate the 2nd IQ as the AIO path. By default, all IQs are
4955 * assumed to be for RAID path I/O unless we change the queue's
4956 * property.
4957 */
4958 memset(&request, 0, sizeof(request));
4959 request.header.iu_type = PQI_REQUEST_IU_GENERAL_ADMIN;
4960 put_unaligned_le16(PQI_GENERAL_ADMIN_IU_LENGTH,
4961 &request.header.iu_length);
4962 request.function_code = PQI_GENERAL_ADMIN_FUNCTION_CHANGE_IQ_PROPERTY;
4963 put_unaligned_le16(queue_group->iq_id[AIO_PATH],
4964 &request.data.change_operational_iq_properties.queue_id);
4965 put_unaligned_le32(PQI_IQ_PROPERTY_IS_AIO_QUEUE,
4966 &request.data.change_operational_iq_properties.vendor_specific);
4967
4968 rc = pqi_submit_admin_request_synchronous(ctrl_info, &request,
4969 &response);
4970 if (rc) {
4971 dev_err(&ctrl_info->pci_dev->dev,
4972 "error changing queue property\n");
339faa81 4973 return rc;
6c223761
KB		 4974 }
4975
4976 /*
4977 * Create OQ (Outbound Queue - device to host queue).
4978 */
4979 memset(&request, 0, sizeof(request));
4980 request.header.iu_type = PQI_REQUEST_IU_GENERAL_ADMIN;
4981 put_unaligned_le16(PQI_GENERAL_ADMIN_IU_LENGTH,
4982 &request.header.iu_length);
4983 request.function_code = PQI_GENERAL_ADMIN_FUNCTION_CREATE_OQ;
4984 put_unaligned_le16(queue_group->oq_id,
4985 &request.data.create_operational_oq.queue_id);
4986 put_unaligned_le64((u64)queue_group->oq_element_array_bus_addr,
4987 &request.data.create_operational_oq.element_array_addr);
4988 put_unaligned_le64((u64)queue_group->oq_pi_bus_addr,
4989 &request.data.create_operational_oq.pi_addr);
4990 put_unaligned_le16(ctrl_info->num_elements_per_oq,
4991 &request.data.create_operational_oq.num_elements);
4992 put_unaligned_le16(PQI_OPERATIONAL_OQ_ELEMENT_LENGTH / 16,
4993 &request.data.create_operational_oq.element_length);
4994 request.data.create_operational_oq.queue_protocol = PQI_PROTOCOL_SOP;
4995 put_unaligned_le16(queue_group->int_msg_num,
4996 &request.data.create_operational_oq.int_msg_num);
4997
4998 rc = pqi_submit_admin_request_synchronous(ctrl_info, &request,
4999 &response);
5000 if (rc) {
5001 dev_err(&ctrl_info->pci_dev->dev,
5002 "error creating outbound queue\n");
339faa81 5003 return rc;
6c223761
KB		 5004 }
5005
5006 queue_group->oq_ci = ctrl_info->iomem_base +
5007 PQI_DEVICE_REGISTERS_OFFSET +
5008 get_unaligned_le64(
5009 &response.data.create_operational_oq.oq_ci_offset);
5010
6c223761 5011 return 0;
6c223761
KB		 5012}
5013
5014static int pqi_create_queues(struct pqi_ctrl_info *ctrl_info)
5015{
5016 int rc;
5017 unsigned int i;
5018
5019 rc = pqi_create_event_queue(ctrl_info);
5020 if (rc) {
5021 dev_err(&ctrl_info->pci_dev->dev,
5022 "error creating event queue\n");
5023 return rc;
5024 }
5025
5026 for (i = 0; i < ctrl_info->num_queue_groups; i++) {
061ef06a 5027 rc = pqi_create_queue_group(ctrl_info, i);
6c223761
KB		 5028 if (rc) {
5029 dev_err(&ctrl_info->pci_dev->dev,
5030 "error creating queue group number %u/%u\n",
5031 i, ctrl_info->num_queue_groups);
5032 return rc;
5033 }
5034 }
5035
5036 return 0;
5037}
5038
5039#define PQI_REPORT_EVENT_CONFIG_BUFFER_LENGTH \
d67790dd 5040 struct_size_t(struct pqi_event_config, descriptors, PQI_MAX_EVENT_DESCRIPTORS)
6c223761 5041
6a50d6ad
KB		 5042static int pqi_configure_events(struct pqi_ctrl_info *ctrl_info,
5043 bool enable_events)
6c223761
KB		 5044{
5045 int rc;
5046 unsigned int i;
5047 struct pqi_event_config *event_config;
6a50d6ad 5048 struct pqi_event_descriptor *event_descriptor;
6c223761
KB		 5049 struct pqi_general_management_request request;
5050
5051 event_config = kmalloc(PQI_REPORT_EVENT_CONFIG_BUFFER_LENGTH,
5052 GFP_KERNEL);
5053 if (!event_config)
5054 return -ENOMEM;
5055
5056 memset(&request, 0, sizeof(request));
5057
5058 request.header.iu_type = PQI_REQUEST_IU_REPORT_VENDOR_EVENT_CONFIG;
5059 put_unaligned_le16(offsetof(struct pqi_general_management_request,
5060 data.report_event_configuration.sg_descriptors[1]) -
5061 PQI_REQUEST_HEADER_LENGTH, &request.header.iu_length);
5062 put_unaligned_le32(PQI_REPORT_EVENT_CONFIG_BUFFER_LENGTH,
5063 &request.data.report_event_configuration.buffer_length);
5064
5065 rc = pqi_map_single(ctrl_info->pci_dev,
5066 request.data.report_event_configuration.sg_descriptors,
5067 event_config, PQI_REPORT_EVENT_CONFIG_BUFFER_LENGTH,
6917a9cc 5068 DMA_FROM_DEVICE);
6c223761
KB		 5069 if (rc)
5070 goto out;
5071
ae0c189d 5072 rc = pqi_submit_raid_request_synchronous(ctrl_info, &request.header, 0, NULL);
6c223761
KB		 5073
5074 pqi_pci_unmap(ctrl_info->pci_dev,
5075 request.data.report_event_configuration.sg_descriptors, 1,
6917a9cc 5076 DMA_FROM_DEVICE);
6c223761
KB		 5077
5078 if (rc)
5079 goto out;
5080
6a50d6ad
KB		 5081 for (i = 0; i < event_config->num_event_descriptors; i++) {
5082 event_descriptor = &event_config->descriptors[i];
5083 if (enable_events &&
5084 pqi_is_supported_event(event_descriptor->event_type))
583891c9 5085 put_unaligned_le16(ctrl_info->event_queue.oq_id,
6a50d6ad
KB		 5086 &event_descriptor->oq_id);
5087 else
5088 put_unaligned_le16(0, &event_descriptor->oq_id);
5089 }
6c223761
KB		 5090
5091 memset(&request, 0, sizeof(request));
5092
5093 request.header.iu_type = PQI_REQUEST_IU_SET_VENDOR_EVENT_CONFIG;
5094 put_unaligned_le16(offsetof(struct pqi_general_management_request,
5095 data.report_event_configuration.sg_descriptors[1]) -
5096 PQI_REQUEST_HEADER_LENGTH, &request.header.iu_length);
5097 put_unaligned_le32(PQI_REPORT_EVENT_CONFIG_BUFFER_LENGTH,
5098 &request.data.report_event_configuration.buffer_length);
5099
5100 rc = pqi_map_single(ctrl_info->pci_dev,
5101 request.data.report_event_configuration.sg_descriptors,
5102 event_config, PQI_REPORT_EVENT_CONFIG_BUFFER_LENGTH,
6917a9cc 5103 DMA_TO_DEVICE);
6c223761
KB		 5104 if (rc)
5105 goto out;
5106
ae0c189d 5107 rc = pqi_submit_raid_request_synchronous(ctrl_info, &request.header, 0, NULL);
6c223761
KB		 5108
5109 pqi_pci_unmap(ctrl_info->pci_dev,
5110 request.data.report_event_configuration.sg_descriptors, 1,
6917a9cc 5111 DMA_TO_DEVICE);
6c223761
KB		 5112
5113out:
5114 kfree(event_config);
5115
5116 return rc;
5117}
5118
6a50d6ad
KB		 5119static inline int pqi_enable_events(struct pqi_ctrl_info *ctrl_info)
5120{
5121 return pqi_configure_events(ctrl_info, true);
5122}
5123
6c223761
KB		 5124static void pqi_free_all_io_requests(struct pqi_ctrl_info *ctrl_info)
5125{
5126 unsigned int i;
5127 struct device *dev;
5128 size_t sg_chain_buffer_length;
5129 struct pqi_io_request *io_request;
5130
5131 if (!ctrl_info->io_request_pool)
5132 return;
5133
5134 dev = &ctrl_info->pci_dev->dev;
5135 sg_chain_buffer_length = ctrl_info->sg_chain_buffer_length;
5136 io_request = ctrl_info->io_request_pool;
5137
5138 for (i = 0; i < ctrl_info->max_io_slots; i++) {
5139 kfree(io_request->iu);
5140 if (!io_request->sg_chain_buffer)
5141 break;
5142 dma_free_coherent(dev, sg_chain_buffer_length,
5143 io_request->sg_chain_buffer,
5144 io_request->sg_chain_buffer_dma_handle);
5145 io_request++;
5146 }
5147
5148 kfree(ctrl_info->io_request_pool);
5149 ctrl_info->io_request_pool = NULL;
5150}
5151
5152static inline int pqi_alloc_error_buffer(struct pqi_ctrl_info *ctrl_info)
5153{
694c5d5b
KB		 5154 ctrl_info->error_buffer = dma_alloc_coherent(&ctrl_info->pci_dev->dev,
5155 ctrl_info->error_buffer_length,
5156 &ctrl_info->error_buffer_dma_handle,
5157 GFP_KERNEL);
6c223761
KB		 5158 if (!ctrl_info->error_buffer)
5159 return -ENOMEM;
5160
5161 return 0;
5162}
5163
5164static int pqi_alloc_io_resources(struct pqi_ctrl_info *ctrl_info)
5165{
5166 unsigned int i;
5167 void *sg_chain_buffer;
5168 size_t sg_chain_buffer_length;
5169 dma_addr_t sg_chain_buffer_dma_handle;
5170 struct device *dev;
5171 struct pqi_io_request *io_request;
5172
583891c9
KB		 5173 ctrl_info->io_request_pool = kcalloc(ctrl_info->max_io_slots,
5174 sizeof(ctrl_info->io_request_pool[0]), GFP_KERNEL);
6c223761
KB		 5175
5176 if (!ctrl_info->io_request_pool) {
5177 dev_err(&ctrl_info->pci_dev->dev,
5178 "failed to allocate I/O request pool\n");
5179 goto error;
5180 }
5181
5182 dev = &ctrl_info->pci_dev->dev;
5183 sg_chain_buffer_length = ctrl_info->sg_chain_buffer_length;
5184 io_request = ctrl_info->io_request_pool;
5185
5186 for (i = 0; i < ctrl_info->max_io_slots; i++) {
583891c9 5187 io_request->iu = kmalloc(ctrl_info->max_inbound_iu_length, GFP_KERNEL);
6c223761
KB		 5188
5189 if (!io_request->iu) {
5190 dev_err(&ctrl_info->pci_dev->dev,
5191 "failed to allocate IU buffers\n");
5192 goto error;
5193 }
5194
5195 sg_chain_buffer = dma_alloc_coherent(dev,
5196 sg_chain_buffer_length, &sg_chain_buffer_dma_handle,
5197 GFP_KERNEL);
5198
5199 if (!sg_chain_buffer) {
5200 dev_err(&ctrl_info->pci_dev->dev,
5201 "failed to allocate PQI scatter-gather chain buffers\n");
5202 goto error;
5203 }
5204
5205 io_request->index = i;
5206 io_request->sg_chain_buffer = sg_chain_buffer;
583891c9 5207 io_request->sg_chain_buffer_dma_handle = sg_chain_buffer_dma_handle;
6c223761
KB		 5208 io_request++;
5209 }
5210
5211 return 0;
5212
5213error:
5214 pqi_free_all_io_requests(ctrl_info);
5215
5216 return -ENOMEM;
5217}
5218
5219/*
5220 * Calculate required resources that are sized based on max. outstanding
5221 * requests and max. transfer size.
5222 */
5223
5224static void pqi_calculate_io_resources(struct pqi_ctrl_info *ctrl_info)
5225{
5226 u32 max_transfer_size;
5227 u32 max_sg_entries;
5228
5229 ctrl_info->scsi_ml_can_queue =
5230 ctrl_info->max_outstanding_requests - PQI_RESERVED_IO_SLOTS;
5231 ctrl_info->max_io_slots = ctrl_info->max_outstanding_requests;
5232
5233 ctrl_info->error_buffer_length =
5234 ctrl_info->max_io_slots * PQI_ERROR_BUFFER_ELEMENT_LENGTH;
5235
d727a776
KB		 5236 if (reset_devices)
5237 max_transfer_size = min(ctrl_info->max_transfer_size,
5238 PQI_MAX_TRANSFER_SIZE_KDUMP);
5239 else
5240 max_transfer_size = min(ctrl_info->max_transfer_size,
5241 PQI_MAX_TRANSFER_SIZE);
6c223761
KB		 5242
5243 max_sg_entries = max_transfer_size / PAGE_SIZE;
5244
5245 /* +1 to cover when the buffer is not page-aligned. */
5246 max_sg_entries++;
5247
5248 max_sg_entries = min(ctrl_info->max_sg_entries, max_sg_entries);
5249
5250 max_transfer_size = (max_sg_entries - 1) * PAGE_SIZE;
5251
5252 ctrl_info->sg_chain_buffer_length =
e1d213bd
KB		 5253 (max_sg_entries * sizeof(struct pqi_sg_descriptor)) +
5254 PQI_EXTRA_SGL_MEMORY;
6c223761
KB		 5255 ctrl_info->sg_tablesize = max_sg_entries;
5256 ctrl_info->max_sectors = max_transfer_size / 512;
5257}
5258
5259static void pqi_calculate_queue_resources(struct pqi_ctrl_info *ctrl_info)
5260{
6c223761
KB		 5261 int num_queue_groups;
5262 u16 num_elements_per_iq;
5263 u16 num_elements_per_oq;
5264
d727a776
KB		 5265 if (reset_devices) {
5266 num_queue_groups = 1;
5267 } else {
5268 int num_cpus;
5269 int max_queue_groups;
5270
5271 max_queue_groups = min(ctrl_info->max_inbound_queues / 2,
5272 ctrl_info->max_outbound_queues - 1);
5273 max_queue_groups = min(max_queue_groups, PQI_MAX_QUEUE_GROUPS);
6c223761 5274
d727a776
KB		 5275 num_cpus = num_online_cpus();
5276 num_queue_groups = min(num_cpus, ctrl_info->max_msix_vectors);
5277 num_queue_groups = min(num_queue_groups, max_queue_groups);
5278 }
6c223761
KB		 5279
5280 ctrl_info->num_queue_groups = num_queue_groups;
5281
77668f41
KB		 5282 /*
5283 * Make sure that the max. inbound IU length is an even multiple
5284 * of our inbound element length.
5285 */
5286 ctrl_info->max_inbound_iu_length =
5287 (ctrl_info->max_inbound_iu_length_per_firmware /
5288 PQI_OPERATIONAL_IQ_ELEMENT_LENGTH) *
5289 PQI_OPERATIONAL_IQ_ELEMENT_LENGTH;
6c223761
KB		 5290
5291 num_elements_per_iq =
5292 (ctrl_info->max_inbound_iu_length /
5293 PQI_OPERATIONAL_IQ_ELEMENT_LENGTH);
5294
5295 /* Add one because one element in each queue is unusable. */
5296 num_elements_per_iq++;
5297
5298 num_elements_per_iq = min(num_elements_per_iq,
5299 ctrl_info->max_elements_per_iq);
5300
5301 num_elements_per_oq = ((num_elements_per_iq - 1) * 2) + 1;
5302 num_elements_per_oq = min(num_elements_per_oq,
5303 ctrl_info->max_elements_per_oq);
5304
5305 ctrl_info->num_elements_per_iq = num_elements_per_iq;
5306 ctrl_info->num_elements_per_oq = num_elements_per_oq;
5307
5308 ctrl_info->max_sg_per_iu =
5309 ((ctrl_info->max_inbound_iu_length -
5310 PQI_OPERATIONAL_IQ_ELEMENT_LENGTH) /
5311 sizeof(struct pqi_sg_descriptor)) +
5312 PQI_MAX_EMBEDDED_SG_DESCRIPTORS;
6702d2c4
DB		 5313
5314 ctrl_info->max_sg_per_r56_iu =
5315 ((ctrl_info->max_inbound_iu_length -
5316 PQI_OPERATIONAL_IQ_ELEMENT_LENGTH) /
5317 sizeof(struct pqi_sg_descriptor)) +
5318 PQI_MAX_EMBEDDED_R56_SG_DESCRIPTORS;
6c223761
KB		 5319}
5320
583891c9
KB		 5321static inline void pqi_set_sg_descriptor(struct pqi_sg_descriptor *sg_descriptor,
5322 struct scatterlist *sg)
6c223761
KB		 5323{
5324 u64 address = (u64)sg_dma_address(sg);
5325 unsigned int length = sg_dma_len(sg);
5326
5327 put_unaligned_le64(address, &sg_descriptor->address);
5328 put_unaligned_le32(length, &sg_descriptor->length);
5329 put_unaligned_le32(0, &sg_descriptor->flags);
5330}
5331
1a22bc4b
DB		 5332static unsigned int pqi_build_sg_list(struct pqi_sg_descriptor *sg_descriptor,
5333 struct scatterlist *sg, int sg_count, struct pqi_io_request *io_request,
5334 int max_sg_per_iu, bool *chained)
6c223761
KB		 5335{
5336 int i;
6c223761 5337 unsigned int num_sg_in_iu;
6c223761 5338
1a22bc4b 5339 *chained = false;
6c223761 5340 i = 0;
1a22bc4b
DB		 5341 num_sg_in_iu = 0;
5342 max_sg_per_iu--; /* Subtract 1 to leave room for chain marker. */
6c223761
KB		 5343
5344 while (1) {
5345 pqi_set_sg_descriptor(sg_descriptor, sg);
1a22bc4b 5346 if (!*chained)
6c223761
KB		 5347 num_sg_in_iu++;
5348 i++;
5349 if (i == sg_count)
5350 break;
5351 sg_descriptor++;
5352 if (i == max_sg_per_iu) {
1a22bc4b 5353 put_unaligned_le64((u64)io_request->sg_chain_buffer_dma_handle,
6c223761 5354 &sg_descriptor->address);
1a22bc4b 5355 put_unaligned_le32((sg_count - num_sg_in_iu) * sizeof(*sg_descriptor),
6c223761 5356 &sg_descriptor->length);
1a22bc4b
DB		 5357 put_unaligned_le32(CISS_SG_CHAIN, &sg_descriptor->flags);
5358 *chained = true;
6c223761
KB		 5359 num_sg_in_iu++;
5360 sg_descriptor = io_request->sg_chain_buffer;
5361 }
5362 sg = sg_next(sg);
5363 }
5364
5365 put_unaligned_le32(CISS_SG_LAST, &sg_descriptor->flags);
6c223761 5366
1a22bc4b 5367 return num_sg_in_iu;
6c223761
KB		 5368}
5369
6c223761
KB		 5370static int pqi_build_raid_sg_list(struct pqi_ctrl_info *ctrl_info,
5371 struct pqi_raid_path_request *request, struct scsi_cmnd *scmd,
6c223761
KB		 5372 struct pqi_io_request *io_request)
5373{
6c223761
KB		 5374 u16 iu_length;
5375 int sg_count;
a60eec02
KB		 5376 bool chained;
5377 unsigned int num_sg_in_iu;
6c223761
KB		 5378 struct scatterlist *sg;
5379 struct pqi_sg_descriptor *sg_descriptor;
5380
5381 sg_count = scsi_dma_map(scmd);
5382 if (sg_count < 0)
5383 return sg_count;
a60eec02 5384
6c223761 5385 iu_length = offsetof(struct pqi_raid_path_request, sg_descriptors) -
a60eec02 5386 PQI_REQUEST_HEADER_LENGTH;
a60eec02 5387
6c223761
KB		 5388 if (sg_count == 0)
5389 goto out;
5390
a60eec02
KB		 5391 sg = scsi_sglist(scmd);
5392 sg_descriptor = request->sg_descriptors;
a60eec02 5393
1a22bc4b
DB		 5394 num_sg_in_iu = pqi_build_sg_list(sg_descriptor, sg, sg_count, io_request,
5395 ctrl_info->max_sg_per_iu, &chained);
6c223761 5396
a60eec02 5397 request->partial = chained;
6c223761 5398 iu_length += num_sg_in_iu * sizeof(*sg_descriptor);
a60eec02
KB		 5399
5400out:
6c223761 5401 put_unaligned_le16(iu_length, &request->header.iu_length);
6c223761
KB		 5402
5403 return 0;
5404}
5405
7a012c23
DB		 5406static int pqi_build_aio_r1_sg_list(struct pqi_ctrl_info *ctrl_info,
5407 struct pqi_aio_r1_path_request *request, struct scsi_cmnd *scmd,
5408 struct pqi_io_request *io_request)
6c223761 5409{
7a012c23
DB		 5410 u16 iu_length;
5411 int sg_count;
5412 bool chained;
5413 unsigned int num_sg_in_iu;
5414 struct scatterlist *sg;
5415 struct pqi_sg_descriptor *sg_descriptor;
5416
5417 sg_count = scsi_dma_map(scmd);
5418 if (sg_count < 0)
5419 return sg_count;
5420
5421 iu_length = offsetof(struct pqi_aio_r1_path_request, sg_descriptors) -
5422 PQI_REQUEST_HEADER_LENGTH;
5423 num_sg_in_iu = 0;
5424
5425 if (sg_count == 0)
5426 goto out;
5427
5428 sg = scsi_sglist(scmd);
5429 sg_descriptor = request->sg_descriptors;
5430
5431 num_sg_in_iu = pqi_build_sg_list(sg_descriptor, sg, sg_count, io_request,
5432 ctrl_info->max_sg_per_iu, &chained);
5433
5434 request->partial = chained;
5435 iu_length += num_sg_in_iu * sizeof(*sg_descriptor);
5436
5437out:
5438 put_unaligned_le16(iu_length, &request->header.iu_length);
5439 request->num_sg_descriptors = num_sg_in_iu;
5440
5441 return 0;
5442}
5443
6702d2c4
DB		 5444static int pqi_build_aio_r56_sg_list(struct pqi_ctrl_info *ctrl_info,
5445 struct pqi_aio_r56_path_request *request, struct scsi_cmnd *scmd,
5446 struct pqi_io_request *io_request)
5447{
5448 u16 iu_length;
5449 int sg_count;
5450 bool chained;
5451 unsigned int num_sg_in_iu;
5452 struct scatterlist *sg;
5453 struct pqi_sg_descriptor *sg_descriptor;
5454
5455 sg_count = scsi_dma_map(scmd);
5456 if (sg_count < 0)
5457 return sg_count;
5458
5459 iu_length = offsetof(struct pqi_aio_r56_path_request, sg_descriptors) -
5460 PQI_REQUEST_HEADER_LENGTH;
5461 num_sg_in_iu = 0;
5462
5463 if (sg_count != 0) {
5464 sg = scsi_sglist(scmd);
5465 sg_descriptor = request->sg_descriptors;
5466
5467 num_sg_in_iu = pqi_build_sg_list(sg_descriptor, sg, sg_count, io_request,
5468 ctrl_info->max_sg_per_r56_iu, &chained);
5469
5470 request->partial = chained;
5471 iu_length += num_sg_in_iu * sizeof(*sg_descriptor);
5472 }
5473
5474 put_unaligned_le16(iu_length, &request->header.iu_length);
5475 request->num_sg_descriptors = num_sg_in_iu;
5476
5477 return 0;
5478}
5479
6c223761
KB		 5480static int pqi_build_aio_sg_list(struct pqi_ctrl_info *ctrl_info,
5481 struct pqi_aio_path_request *request, struct scsi_cmnd *scmd,
5482 struct pqi_io_request *io_request)
5483{
6c223761
KB		 5484 u16 iu_length;
5485 int sg_count;
a60eec02
KB		 5486 bool chained;
5487 unsigned int num_sg_in_iu;
6c223761
KB		 5488 struct scatterlist *sg;
5489 struct pqi_sg_descriptor *sg_descriptor;
5490
5491 sg_count = scsi_dma_map(scmd);
5492 if (sg_count < 0)
5493 return sg_count;
a60eec02
KB		 5494
5495 iu_length = offsetof(struct pqi_aio_path_request, sg_descriptors) -
5496 PQI_REQUEST_HEADER_LENGTH;
5497 num_sg_in_iu = 0;
5498
6c223761
KB		 5499 if (sg_count == 0)
5500 goto out;
5501
a60eec02
KB		 5502 sg = scsi_sglist(scmd);
5503 sg_descriptor = request->sg_descriptors;
a60eec02 5504
1a22bc4b
DB		 5505 num_sg_in_iu = pqi_build_sg_list(sg_descriptor, sg, sg_count, io_request,
5506 ctrl_info->max_sg_per_iu, &chained);
6c223761 5507
a60eec02 5508 request->partial = chained;
6c223761 5509 iu_length += num_sg_in_iu * sizeof(*sg_descriptor);
a60eec02
KB		 5510
5511out:
6c223761
KB		 5512 put_unaligned_le16(iu_length, &request->header.iu_length);
5513 request->num_sg_descriptors = num_sg_in_iu;
5514
5515 return 0;
5516}
5517
5518static void pqi_raid_io_complete(struct pqi_io_request *io_request,
5519 void *context)
5520{
5521 struct scsi_cmnd *scmd;
5522
5523 scmd = io_request->scmd;
5524 pqi_free_io_request(io_request);
5525 scsi_dma_unmap(scmd);
5526 pqi_scsi_done(scmd);
5527}
5528
68f79204 5529static int pqi_raid_submit_io(struct pqi_ctrl_info *ctrl_info,
6c223761 5530 struct pqi_scsi_dev *device, struct scsi_cmnd *scmd,
68f79204 5531 struct pqi_queue_group *queue_group, bool io_high_prio)
6c223761
KB		 5532{
5533 int rc;
5534 size_t cdb_length;
68f79204 5535 struct pqi_io_request *io_request;
6c223761
KB		 5536 struct pqi_raid_path_request *request;
5537
68f79204
GW		 5538 io_request = pqi_alloc_io_request(ctrl_info, scmd);
5539 if (!io_request)
5540 return SCSI_MLQUEUE_HOST_BUSY;
5541
6c223761
KB		 5542 io_request->io_complete_callback = pqi_raid_io_complete;
5543 io_request->scmd = scmd;
5544
6c223761 5545 request = io_request->iu;
583891c9 5546 memset(request, 0, offsetof(struct pqi_raid_path_request, sg_descriptors));
6c223761
KB		 5547
5548 request->header.iu_type = PQI_REQUEST_IU_RAID_PATH_IO;
5549 put_unaligned_le32(scsi_bufflen(scmd), &request->buffer_length);
5550 request->task_attribute = SOP_TASK_ATTRIBUTE_SIMPLE;
68f79204 5551 request->command_priority = io_high_prio;
6c223761
KB		 5552 put_unaligned_le16(io_request->index, &request->request_id);
5553 request->error_index = request->request_id;
583891c9 5554 memcpy(request->lun_number, device->scsi3addr, sizeof(request->lun_number));
904f2bfd 5555 request->ml_device_lun_number = (u8)scmd->device->lun;
6c223761
KB		 5556
5557 cdb_length = min_t(size_t, scmd->cmd_len, sizeof(request->cdb));
5558 memcpy(request->cdb, scmd->cmnd, cdb_length);
5559
5560 switch (cdb_length) {
5561 case 6:
5562 case 10:
5563 case 12:
5564 case 16:
583891c9 5565 request->additional_cdb_bytes_usage = SOP_ADDITIONAL_CDB_BYTES_0;
6c223761
KB		 5566 break;
5567 case 20:
583891c9 5568 request->additional_cdb_bytes_usage = SOP_ADDITIONAL_CDB_BYTES_4;
6c223761
KB		 5569 break;
5570 case 24:
583891c9 5571 request->additional_cdb_bytes_usage = SOP_ADDITIONAL_CDB_BYTES_8;
6c223761
KB		 5572 break;
5573 case 28:
583891c9 5574 request->additional_cdb_bytes_usage = SOP_ADDITIONAL_CDB_BYTES_12;
6c223761
KB		 5575 break;
5576 case 32:
5577 default:
583891c9 5578 request->additional_cdb_bytes_usage = SOP_ADDITIONAL_CDB_BYTES_16;
6c223761
KB		 5579 break;
5580 }
5581
5582 switch (scmd->sc_data_direction) {
69695aea 5583 case DMA_FROM_DEVICE:
6c223761
KB		 5584 request->data_direction = SOP_READ_FLAG;
5585 break;
69695aea 5586 case DMA_TO_DEVICE:
6c223761
KB		 5587 request->data_direction = SOP_WRITE_FLAG;
5588 break;
5589 case DMA_NONE:
5590 request->data_direction = SOP_NO_DIRECTION_FLAG;
5591 break;
5592 case DMA_BIDIRECTIONAL:
5593 request->data_direction = SOP_BIDIRECTIONAL;
5594 break;
5595 default:
5596 dev_err(&ctrl_info->pci_dev->dev,
5597 "unknown data direction: %d\n",
5598 scmd->sc_data_direction);
6c223761
KB		 5599 break;
5600 }
5601
5602 rc = pqi_build_raid_sg_list(ctrl_info, request, scmd, io_request);
5603 if (rc) {
5604 pqi_free_io_request(io_request);
5605 return SCSI_MLQUEUE_HOST_BUSY;
5606 }
5607
5608 pqi_start_io(ctrl_info, queue_group, RAID_PATH, io_request);
5609
5610 return 0;
5611}
5612
376fb880
KB		 5613static inline int pqi_raid_submit_scsi_cmd(struct pqi_ctrl_info *ctrl_info,
5614 struct pqi_scsi_dev *device, struct scsi_cmnd *scmd,
5615 struct pqi_queue_group *queue_group)
5616{
68f79204 5617 bool io_high_prio;
376fb880 5618
68f79204 5619 io_high_prio = pqi_is_io_high_priority(device, scmd);
376fb880 5620
68f79204 5621 return pqi_raid_submit_io(ctrl_info, device, scmd, queue_group, io_high_prio);
376fb880
KB		 5622}
5623
376fb880
KB		 5624static bool pqi_raid_bypass_retry_needed(struct pqi_io_request *io_request)
5625{
5626 struct scsi_cmnd *scmd;
03b288cf 5627 struct pqi_scsi_dev *device;
376fb880
KB		 5628 struct pqi_ctrl_info *ctrl_info;
5629
5630 if (!io_request->raid_bypass)
5631 return false;
5632
5633 scmd = io_request->scmd;
5634 if ((scmd->result & 0xff) == SAM_STAT_GOOD)
5635 return false;
5636 if (host_byte(scmd->result) == DID_NO_CONNECT)
5637 return false;
5638
03b288cf 5639 device = scmd->device->hostdata;
5be9db06 5640 if (pqi_device_offline(device) || pqi_device_in_remove(device))
03b288cf
KB		 5641 return false;
5642
376fb880
KB		 5643 ctrl_info = shost_to_hba(scmd->device->host);
5644 if (pqi_ctrl_offline(ctrl_info))
5645 return false;
5646
5647 return true;
5648}
5649
6c223761
KB		 5650static void pqi_aio_io_complete(struct pqi_io_request *io_request,
5651 void *context)
5652{
5653 struct scsi_cmnd *scmd;
5654
5655 scmd = io_request->scmd;
5656 scsi_dma_unmap(scmd);
5be9db06 5657 if (io_request->status == -EAGAIN || pqi_raid_bypass_retry_needed(io_request)) {
6c223761 5658 set_host_byte(scmd, DID_IMM_RETRY);
c1ea387d 5659 pqi_cmd_priv(scmd)->this_residual++;
376fb880 5660 }
5be9db06 5661
6c223761
KB		 5662 pqi_free_io_request(io_request);
5663 pqi_scsi_done(scmd);
5664}
5665
5666static inline int pqi_aio_submit_scsi_cmd(struct pqi_ctrl_info *ctrl_info,
5667 struct pqi_scsi_dev *device, struct scsi_cmnd *scmd,
5668 struct pqi_queue_group *queue_group)
5669{
2a47834d
GW		 5670 bool io_high_prio;
5671
68f79204 5672 io_high_prio = pqi_is_io_high_priority(device, scmd);
b4dc06a9 5673
6c223761 5674 return pqi_aio_submit_io(ctrl_info, scmd, device->aio_handle,
2a47834d
GW		 5675 scmd->cmnd, scmd->cmd_len, queue_group, NULL,
5676 false, io_high_prio);
6c223761
KB		 5677}
5678
5679static int pqi_aio_submit_io(struct pqi_ctrl_info *ctrl_info,
5680 struct scsi_cmnd *scmd, u32 aio_handle, u8 *cdb,
5681 unsigned int cdb_length, struct pqi_queue_group *queue_group,
2a47834d
GW		 5682 struct pqi_encryption_info *encryption_info, bool raid_bypass,
5683 bool io_high_prio)
6c223761
KB		 5684{
5685 int rc;
5686 struct pqi_io_request *io_request;
5687 struct pqi_aio_path_request *request;
5688
b27ac2fa
DB		 5689 io_request = pqi_alloc_io_request(ctrl_info, scmd);
5690 if (!io_request)
5691 return SCSI_MLQUEUE_HOST_BUSY;
68f79204 5692
6c223761
KB		 5693 io_request->io_complete_callback = pqi_aio_io_complete;
5694 io_request->scmd = scmd;
376fb880 5695 io_request->raid_bypass = raid_bypass;
6c223761
KB		 5696
5697 request = io_request->iu;
9e98e60b 5698 memset(request, 0, offsetof(struct pqi_aio_path_request, sg_descriptors));
6c223761
KB		 5699
5700 request->header.iu_type = PQI_REQUEST_IU_AIO_PATH_IO;
5701 put_unaligned_le32(aio_handle, &request->nexus_id);
5702 put_unaligned_le32(scsi_bufflen(scmd), &request->buffer_length);
5703 request->task_attribute = SOP_TASK_ATTRIBUTE_SIMPLE;
2a47834d 5704 request->command_priority = io_high_prio;
6c223761
KB		 5705 put_unaligned_le16(io_request->index, &request->request_id);
5706 request->error_index = request->request_id;
dad662c9
DS		 5707 if (!raid_bypass && ctrl_info->multi_lun_device_supported)
5708 put_unaligned_le64(scmd->device->lun << 8, &request->lun_number);
6c223761
KB		 5709 if (cdb_length > sizeof(request->cdb))
5710 cdb_length = sizeof(request->cdb);
5711 request->cdb_length = cdb_length;
5712 memcpy(request->cdb, cdb, cdb_length);
5713
5714 switch (scmd->sc_data_direction) {
5715 case DMA_TO_DEVICE:
5716 request->data_direction = SOP_READ_FLAG;
5717 break;
5718 case DMA_FROM_DEVICE:
5719 request->data_direction = SOP_WRITE_FLAG;
5720 break;
5721 case DMA_NONE:
5722 request->data_direction = SOP_NO_DIRECTION_FLAG;
5723 break;
5724 case DMA_BIDIRECTIONAL:
5725 request->data_direction = SOP_BIDIRECTIONAL;
5726 break;
5727 default:
5728 dev_err(&ctrl_info->pci_dev->dev,
5729 "unknown data direction: %d\n",
5730 scmd->sc_data_direction);
6c223761
KB		 5731 break;
5732 }
5733
5734 if (encryption_info) {
5735 request->encryption_enable = true;
5736 put_unaligned_le16(encryption_info->data_encryption_key_index,
5737 &request->data_encryption_key_index);
5738 put_unaligned_le32(encryption_info->encrypt_tweak_lower,
5739 &request->encrypt_tweak_lower);
5740 put_unaligned_le32(encryption_info->encrypt_tweak_upper,
5741 &request->encrypt_tweak_upper);
5742 }
5743
5744 rc = pqi_build_aio_sg_list(ctrl_info, request, scmd, io_request);
5745 if (rc) {
5746 pqi_free_io_request(io_request);
5747 return SCSI_MLQUEUE_HOST_BUSY;
5748 }
5749
5750 pqi_start_io(ctrl_info, queue_group, AIO_PATH, io_request);
5751
5752 return 0;
5753}
5754
7a012c23
DB		 5755static int pqi_aio_submit_r1_write_io(struct pqi_ctrl_info *ctrl_info,
5756 struct scsi_cmnd *scmd, struct pqi_queue_group *queue_group,
5757 struct pqi_encryption_info *encryption_info, struct pqi_scsi_dev *device,
5758 struct pqi_scsi_dev_raid_map_data *rmd)
7a012c23
DB		 5759{
5760 int rc;
5761 struct pqi_io_request *io_request;
5762 struct pqi_aio_r1_path_request *r1_request;
5763
b27ac2fa
DB		 5764 io_request = pqi_alloc_io_request(ctrl_info, scmd);
5765 if (!io_request)
5766 return SCSI_MLQUEUE_HOST_BUSY;
5767
7a012c23
DB		 5768 io_request->io_complete_callback = pqi_aio_io_complete;
5769 io_request->scmd = scmd;
5770 io_request->raid_bypass = true;
5771
5772 r1_request = io_request->iu;
5773 memset(r1_request, 0, offsetof(struct pqi_aio_r1_path_request, sg_descriptors));
5774
5775 r1_request->header.iu_type = PQI_REQUEST_IU_AIO_PATH_RAID1_IO;
7a012c23
DB		 5776 put_unaligned_le16(*(u16 *)device->scsi3addr & 0x3fff, &r1_request->volume_id);
5777 r1_request->num_drives = rmd->num_it_nexus_entries;
5778 put_unaligned_le32(rmd->it_nexus[0], &r1_request->it_nexus_1);
5779 put_unaligned_le32(rmd->it_nexus[1], &r1_request->it_nexus_2);
5780 if (rmd->num_it_nexus_entries == 3)
5781 put_unaligned_le32(rmd->it_nexus[2], &r1_request->it_nexus_3);
5782
5783 put_unaligned_le32(scsi_bufflen(scmd), &r1_request->data_length);
5784 r1_request->task_attribute = SOP_TASK_ATTRIBUTE_SIMPLE;
5785 put_unaligned_le16(io_request->index, &r1_request->request_id);
5786 r1_request->error_index = r1_request->request_id;
5787 if (rmd->cdb_length > sizeof(r1_request->cdb))
5788 rmd->cdb_length = sizeof(r1_request->cdb);
5789 r1_request->cdb_length = rmd->cdb_length;
5790 memcpy(r1_request->cdb, rmd->cdb, rmd->cdb_length);
5791
5792 /* The direction is always write. */
5793 r1_request->data_direction = SOP_READ_FLAG;
5794
5795 if (encryption_info) {
5796 r1_request->encryption_enable = true;
5797 put_unaligned_le16(encryption_info->data_encryption_key_index,
5798 &r1_request->data_encryption_key_index);
5799 put_unaligned_le32(encryption_info->encrypt_tweak_lower,
5800 &r1_request->encrypt_tweak_lower);
5801 put_unaligned_le32(encryption_info->encrypt_tweak_upper,
5802 &r1_request->encrypt_tweak_upper);
5803 }
5804
5805 rc = pqi_build_aio_r1_sg_list(ctrl_info, r1_request, scmd, io_request);
5806 if (rc) {
5807 pqi_free_io_request(io_request);
5808 return SCSI_MLQUEUE_HOST_BUSY;
5809 }
5810
5811 pqi_start_io(ctrl_info, queue_group, AIO_PATH, io_request);
5812
5813 return 0;
5814}
5815
6702d2c4
DB		 5816static int pqi_aio_submit_r56_write_io(struct pqi_ctrl_info *ctrl_info,
5817 struct scsi_cmnd *scmd, struct pqi_queue_group *queue_group,
5818 struct pqi_encryption_info *encryption_info, struct pqi_scsi_dev *device,
5819 struct pqi_scsi_dev_raid_map_data *rmd)
5820{
5821 int rc;
5822 struct pqi_io_request *io_request;
5823 struct pqi_aio_r56_path_request *r56_request;
5824
b27ac2fa
DB		 5825 io_request = pqi_alloc_io_request(ctrl_info, scmd);
5826 if (!io_request)
5827 return SCSI_MLQUEUE_HOST_BUSY;
6702d2c4
DB		 5828 io_request->io_complete_callback = pqi_aio_io_complete;
5829 io_request->scmd = scmd;
5830 io_request->raid_bypass = true;
5831
5832 r56_request = io_request->iu;
5833 memset(r56_request, 0, offsetof(struct pqi_aio_r56_path_request, sg_descriptors));
5834
5835 if (device->raid_level == SA_RAID_5 || device->raid_level == SA_RAID_51)
5836 r56_request->header.iu_type = PQI_REQUEST_IU_AIO_PATH_RAID5_IO;
5837 else
5838 r56_request->header.iu_type = PQI_REQUEST_IU_AIO_PATH_RAID6_IO;
5839
5840 put_unaligned_le16(*(u16 *)device->scsi3addr & 0x3fff, &r56_request->volume_id);
5841 put_unaligned_le32(rmd->aio_handle, &r56_request->data_it_nexus);
5842 put_unaligned_le32(rmd->p_parity_it_nexus, &r56_request->p_parity_it_nexus);
5843 if (rmd->raid_level == SA_RAID_6) {
5844 put_unaligned_le32(rmd->q_parity_it_nexus, &r56_request->q_parity_it_nexus);
5845 r56_request->xor_multiplier = rmd->xor_mult;
5846 }
5847 put_unaligned_le32(scsi_bufflen(scmd), &r56_request->data_length);
5848 r56_request->task_attribute = SOP_TASK_ATTRIBUTE_SIMPLE;
5849 put_unaligned_le64(rmd->row, &r56_request->row);
5850
5851 put_unaligned_le16(io_request->index, &r56_request->request_id);
5852 r56_request->error_index = r56_request->request_id;
5853
5854 if (rmd->cdb_length > sizeof(r56_request->cdb))
5855 rmd->cdb_length = sizeof(r56_request->cdb);
5856 r56_request->cdb_length = rmd->cdb_length;
5857 memcpy(r56_request->cdb, rmd->cdb, rmd->cdb_length);
5858
5859 /* The direction is always write. */
5860 r56_request->data_direction = SOP_READ_FLAG;
5861
5862 if (encryption_info) {
5863 r56_request->encryption_enable = true;
5864 put_unaligned_le16(encryption_info->data_encryption_key_index,
5865 &r56_request->data_encryption_key_index);
5866 put_unaligned_le32(encryption_info->encrypt_tweak_lower,
5867 &r56_request->encrypt_tweak_lower);
5868 put_unaligned_le32(encryption_info->encrypt_tweak_upper,
5869 &r56_request->encrypt_tweak_upper);
5870 }
5871
5872 rc = pqi_build_aio_r56_sg_list(ctrl_info, r56_request, scmd, io_request);
5873 if (rc) {
5874 pqi_free_io_request(io_request);
5875 return SCSI_MLQUEUE_HOST_BUSY;
5876 }
5877
5878 pqi_start_io(ctrl_info, queue_group, AIO_PATH, io_request);
5879
5880 return 0;
5881}
5882
061ef06a
KB		 5883static inline u16 pqi_get_hw_queue(struct pqi_ctrl_info *ctrl_info,
5884 struct scsi_cmnd *scmd)
5885{
b27ac2fa
DB		 5886 /*
5887 * We are setting host_tagset = 1 during init.
5888 */
5889 return blk_mq_unique_tag_to_hwq(blk_mq_unique_tag(scsi_cmd_to_rq(scmd)));
061ef06a
KB		 5890}
5891
5be9db06
KB		 5892static inline bool pqi_is_bypass_eligible_request(struct scsi_cmnd *scmd)
5893{
12db0f93 5894 if (blk_rq_is_passthrough(scsi_cmd_to_rq(scmd)))
5be9db06
KB		 5895 return false;
5896
c1ea387d 5897 return pqi_cmd_priv(scmd)->this_residual == 0;
5be9db06
KB		 5898}
5899
7561a7e4
KB		 5900/*
5901 * This function gets called just before we hand the completed SCSI request
5902 * back to the SML.
5903 */
5904
5905void pqi_prep_for_scsi_done(struct scsi_cmnd *scmd)
5906{
5907 struct pqi_scsi_dev *device;
153c45dd 5908 struct completion *wait;
7561a7e4 5909
1e46731e
MR		 5910 if (!scmd->device) {
5911 set_host_byte(scmd, DID_NO_CONNECT);
5912 return;
5913 }
5914
7561a7e4 5915 device = scmd->device->hostdata;
1e46731e
MR		 5916 if (!device) {
5917 set_host_byte(scmd, DID_NO_CONNECT);
5918 return;
5919 }
5920
904f2bfd 5921 atomic_dec(&device->scsi_cmds_outstanding[scmd->device->lun]);
153c45dd
KB		 5922
5923 wait = (struct completion *)xchg(&scmd->host_scribble, NULL);
5924 if (wait != PQI_NO_COMPLETION)
5925 complete(wait);
7561a7e4
KB		 5926}
5927
c7ffedb3 5928static bool pqi_is_parity_write_stream(struct pqi_ctrl_info *ctrl_info,
7d81d2b8 5929 struct scsi_cmnd *scmd)
c7ffedb3
DB		 5930{
5931 u32 oldest_jiffies;
5932 u8 lru_index;
5933 int i;
5934 int rc;
5935 struct pqi_scsi_dev *device;
5936 struct pqi_stream_data *pqi_stream_data;
5937 struct pqi_scsi_dev_raid_map_data rmd;
5938
5939 if (!ctrl_info->enable_stream_detection)
5940 return false;
5941
5942 rc = pqi_get_aio_lba_and_block_count(scmd, &rmd);
5943 if (rc)
5944 return false;
5945
5946 /* Check writes only. */
5947 if (!rmd.is_write)
5948 return false;
5949
5950 device = scmd->device->hostdata;
5951
5952 /* Check for RAID 5/6 streams. */
5953 if (device->raid_level != SA_RAID_5 && device->raid_level != SA_RAID_6)
5954 return false;
5955
5956 /*
5957 * If controller does not support AIO RAID{5,6} writes, need to send
5958 * requests down non-AIO path.
5959 */
5960 if ((device->raid_level == SA_RAID_5 && !ctrl_info->enable_r5_writes) ||
5961 (device->raid_level == SA_RAID_6 && !ctrl_info->enable_r6_writes))
5962 return true;
5963
5964 lru_index = 0;
5965 oldest_jiffies = INT_MAX;
5966 for (i = 0; i < NUM_STREAMS_PER_LUN; i++) {
5967 pqi_stream_data = &device->stream_data[i];
5968 /*
5969 * Check for adjacent request or request is within
5970 * the previous request.
5971 */
5972 if ((pqi_stream_data->next_lba &&
5973 rmd.first_block >= pqi_stream_data->next_lba) &&
5974 rmd.first_block <= pqi_stream_data->next_lba +
5975 rmd.block_cnt) {
5976 pqi_stream_data->next_lba = rmd.first_block +
5977 rmd.block_cnt;
5978 pqi_stream_data->last_accessed = jiffies;
5979 return true;
5980 }
5981
5982 /* unused entry */
5983 if (pqi_stream_data->last_accessed == 0) {
5984 lru_index = i;
5985 break;
5986 }
5987
5988 /* Find entry with oldest last accessed time. */
5989 if (pqi_stream_data->last_accessed <= oldest_jiffies) {
5990 oldest_jiffies = pqi_stream_data->last_accessed;
5991 lru_index = i;
5992 }
5993 }
5994
5995 /* Set LRU entry. */
5996 pqi_stream_data = &device->stream_data[lru_index];
5997 pqi_stream_data->last_accessed = jiffies;
5998 pqi_stream_data->next_lba = rmd.first_block + rmd.block_cnt;
5999
6000 return false;
6001}
6002
6003static int pqi_scsi_queue_command(struct Scsi_Host *shost, struct scsi_cmnd *scmd)
6c223761
KB		 6004{
6005 int rc;
6006 struct pqi_ctrl_info *ctrl_info;
6007 struct pqi_scsi_dev *device;
061ef06a 6008 u16 hw_queue;
6c223761
KB		 6009 struct pqi_queue_group *queue_group;
6010 bool raid_bypassed;
153c45dd
KB		 6011 u8 lun;
6012
6013 scmd->host_scribble = PQI_NO_COMPLETION;
6c223761
KB		 6014
6015 device = scmd->device->hostdata;
6c223761 6016
1e46731e
MR		 6017 if (!device) {
6018 set_host_byte(scmd, DID_NO_CONNECT);
6019 pqi_scsi_done(scmd);
6020 return 0;
6021 }
6022
153c45dd
KB		 6023 lun = (u8)scmd->device->lun;
6024
6025 atomic_inc(&device->scsi_cmds_outstanding[lun]);
7561a7e4 6026
583891c9
KB		 6027 ctrl_info = shost_to_hba(shost);
6028
1bdf6e93 6029 if (pqi_ctrl_offline(ctrl_info) || pqi_device_in_remove(device)) {
6c223761
KB		 6030 set_host_byte(scmd, DID_NO_CONNECT);
6031 pqi_scsi_done(scmd);
6032 return 0;
6033 }
6034
153c45dd 6035 if (pqi_ctrl_blocked(ctrl_info) || pqi_device_in_reset(device, lun)) {
7561a7e4
KB		 6036 rc = SCSI_MLQUEUE_HOST_BUSY;
6037 goto out;
6038 }
6039
7d81d2b8
KB		 6040 /*
6041 * This is necessary because the SML doesn't zero out this field during
6042 * error recovery.
6043 */
6044 scmd->result = 0;
6045
061ef06a
KB		 6046 hw_queue = pqi_get_hw_queue(ctrl_info, scmd);
6047 queue_group = &ctrl_info->queue_groups[hw_queue];
6c223761
KB		 6048
6049 if (pqi_is_logical_device(device)) {
6050 raid_bypassed = false;
588a63fe 6051 if (device->raid_bypass_enabled &&
5be9db06
KB		 6052 pqi_is_bypass_eligible_request(scmd) &&
6053 !pqi_is_parity_write_stream(ctrl_info, scmd)) {
6054 rc = pqi_raid_bypass_submit_scsi_cmd(ctrl_info, device, scmd, queue_group);
8b664fef 6055 if (rc == 0 || rc == SCSI_MLQUEUE_HOST_BUSY) {
376fb880 6056 raid_bypassed = true;
80d560d9 6057 device->raid_bypass_cnt++;
8b664fef 6058 }
6c223761
KB		 6059 }
6060 if (!raid_bypassed)
8b664fef 6061 rc = pqi_raid_submit_scsi_cmd(ctrl_info, device, scmd, queue_group);
6c223761
KB		 6062 } else {
6063 if (device->aio_enabled)
8b664fef 6064 rc = pqi_aio_submit_scsi_cmd(ctrl_info, device, scmd, queue_group);
6c223761 6065 else
8b664fef 6066 rc = pqi_raid_submit_scsi_cmd(ctrl_info, device, scmd, queue_group);
6c223761
KB		 6067 }
6068
7561a7e4 6069out:
153c45dd
KB		 6070 if (rc) {
6071 scmd->host_scribble = NULL;
6072 atomic_dec(&device->scsi_cmds_outstanding[lun]);
6073 }
7561a7e4 6074
6c223761
KB		 6075 return rc;
6076}
6077
6ce1ddf5 6078static unsigned int pqi_queued_io_count(struct pqi_ctrl_info *ctrl_info)
7561a7e4 6079{
6ce1ddf5 6080 unsigned int i;
7561a7e4
KB		 6081 unsigned int path;
6082 unsigned long flags;
6ce1ddf5
KB		 6083 unsigned int queued_io_count;
6084 struct pqi_queue_group *queue_group;
6085 struct pqi_io_request *io_request;
7561a7e4 6086
6ce1ddf5
KB		 6087 queued_io_count = 0;
6088
6089 for (i = 0; i < ctrl_info->num_queue_groups; i++) {
6090 queue_group = &ctrl_info->queue_groups[i];
6091 for (path = 0; path < 2; path++) {
6092 spin_lock_irqsave(&queue_group->submit_lock[path], flags);
6093 list_for_each_entry(io_request, &queue_group->request_list[path], request_list_entry)
6094 queued_io_count++;
6095 spin_unlock_irqrestore(&queue_group->submit_lock[path], flags);
7561a7e4
KB		 6096 }
6097 }
6098
6ce1ddf5 6099 return queued_io_count;
7561a7e4
KB		 6100}
6101
6ce1ddf5 6102static unsigned int pqi_nonempty_inbound_queue_count(struct pqi_ctrl_info *ctrl_info)
7561a7e4 6103{
7561a7e4
KB		 6104 unsigned int i;
6105 unsigned int path;
6ce1ddf5 6106 unsigned int nonempty_inbound_queue_count;
7561a7e4
KB		 6107 struct pqi_queue_group *queue_group;
6108 pqi_index_t iq_pi;
6109 pqi_index_t iq_ci;
6110
6ce1ddf5
KB		 6111 nonempty_inbound_queue_count = 0;
6112
7561a7e4
KB		 6113 for (i = 0; i < ctrl_info->num_queue_groups; i++) {
6114 queue_group = &ctrl_info->queue_groups[i];
7561a7e4
KB		 6115 for (path = 0; path < 2; path++) {
6116 iq_pi = queue_group->iq_pi_copy[path];
6ce1ddf5
KB		 6117 iq_ci = readl(queue_group->iq_ci[path]);
6118 if (iq_ci != iq_pi)
6119 nonempty_inbound_queue_count++;
6120 }
6121 }
7561a7e4 6122
6ce1ddf5
KB		 6123 return nonempty_inbound_queue_count;
6124}
6125
6126#define PQI_INBOUND_QUEUES_NONEMPTY_WARNING_TIMEOUT_SECS 10
6127
6128static int pqi_wait_until_inbound_queues_empty(struct pqi_ctrl_info *ctrl_info)
6129{
6130 unsigned long start_jiffies;
6131 unsigned long warning_timeout;
6132 unsigned int queued_io_count;
6133 unsigned int nonempty_inbound_queue_count;
6134 bool displayed_warning;
6135
6136 displayed_warning = false;
6137 start_jiffies = jiffies;
42dc0426 6138 warning_timeout = (PQI_INBOUND_QUEUES_NONEMPTY_WARNING_TIMEOUT_SECS * HZ) + start_jiffies;
6ce1ddf5
KB		 6139
6140 while (1) {
6141 queued_io_count = pqi_queued_io_count(ctrl_info);
6142 nonempty_inbound_queue_count = pqi_nonempty_inbound_queue_count(ctrl_info);
6143 if (queued_io_count == 0 && nonempty_inbound_queue_count == 0)
6144 break;
6145 pqi_check_ctrl_health(ctrl_info);
6146 if (pqi_ctrl_offline(ctrl_info))
6147 return -ENXIO;
6148 if (time_after(jiffies, warning_timeout)) {
6149 dev_warn(&ctrl_info->pci_dev->dev,
6150 "waiting %u seconds for queued I/O to drain (queued I/O count: %u; non-empty inbound queue count: %u)\n",
6151 jiffies_to_msecs(jiffies - start_jiffies) / 1000, queued_io_count, nonempty_inbound_queue_count);
6152 displayed_warning = true;
42dc0426 6153 warning_timeout = (PQI_INBOUND_QUEUES_NONEMPTY_WARNING_TIMEOUT_SECS * HZ) + jiffies;
7561a7e4 6154 }
6ce1ddf5 6155 usleep_range(1000, 2000);
7561a7e4
KB		 6156 }
6157
6ce1ddf5
KB		 6158 if (displayed_warning)
6159 dev_warn(&ctrl_info->pci_dev->dev,
6160 "queued I/O drained after waiting for %u seconds\n",
6161 jiffies_to_msecs(jiffies - start_jiffies) / 1000);
6162
7561a7e4
KB		 6163 return 0;
6164}
6165
6166static void pqi_fail_io_queued_for_device(struct pqi_ctrl_info *ctrl_info,
153c45dd 6167 struct pqi_scsi_dev *device, u8 lun)
7561a7e4
KB		 6168{
6169 unsigned int i;
6170 unsigned int path;
6171 struct pqi_queue_group *queue_group;
6172 unsigned long flags;
6173 struct pqi_io_request *io_request;
6174 struct pqi_io_request *next;
6175 struct scsi_cmnd *scmd;
6176 struct pqi_scsi_dev *scsi_device;
6177
6178 for (i = 0; i < ctrl_info->num_queue_groups; i++) {
6179 queue_group = &ctrl_info->queue_groups[i];
6180
6181 for (path = 0; path < 2; path++) {
6182 spin_lock_irqsave(
6183 &queue_group->submit_lock[path], flags);
6184
6185 list_for_each_entry_safe(io_request, next,
6186 &queue_group->request_list[path],
6187 request_list_entry) {
583891c9 6188
7561a7e4
KB		 6189 scmd = io_request->scmd;
6190 if (!scmd)
6191 continue;
6192
6193 scsi_device = scmd->device->hostdata;
6194 if (scsi_device != device)
6195 continue;
6196
153c45dd
KB		 6197 if ((u8)scmd->device->lun != lun)
6198 continue;
6199
7561a7e4
KB		 6200 list_del(&io_request->request_list_entry);
6201 set_host_byte(scmd, DID_RESET);
b622a601
MB		 6202 pqi_free_io_request(io_request);
6203 scsi_dma_unmap(scmd);
7561a7e4
KB		 6204 pqi_scsi_done(scmd);
6205 }
6206
6207 spin_unlock_irqrestore(
6208 &queue_group->submit_lock[path], flags);
6209 }
6210 }
6211}
6212
18ff5f08 6213#define PQI_PENDING_IO_WARNING_TIMEOUT_SECS 10
4fd22c13 6214
061ef06a 6215static int pqi_device_wait_for_pending_io(struct pqi_ctrl_info *ctrl_info,
904f2bfd 6216 struct pqi_scsi_dev *device, u8 lun, unsigned long timeout_msecs)
061ef06a 6217{
18ff5f08
KB		 6218 int cmds_outstanding;
6219 unsigned long start_jiffies;
6220 unsigned long warning_timeout;
6221 unsigned long msecs_waiting;
1e46731e 6222
18ff5f08 6223 start_jiffies = jiffies;
42dc0426 6224 warning_timeout = (PQI_PENDING_IO_WARNING_TIMEOUT_SECS * HZ) + start_jiffies;
1e46731e 6225
904f2bfd 6226 while ((cmds_outstanding = atomic_read(&device->scsi_cmds_outstanding[lun])) > 0) {
331f7e99
SB		 6227 if (ctrl_info->ctrl_removal_state != PQI_CTRL_GRACEFUL_REMOVAL) {
6228 pqi_check_ctrl_health(ctrl_info);
6229 if (pqi_ctrl_offline(ctrl_info))
6230 return -ENXIO;
6231 }
18ff5f08 6232 msecs_waiting = jiffies_to_msecs(jiffies - start_jiffies);
6ce1ddf5 6233 if (msecs_waiting >= timeout_msecs) {
18ff5f08
KB		 6234 dev_err(&ctrl_info->pci_dev->dev,
6235 "scsi %d:%d:%d:%d: timed out after %lu seconds waiting for %d outstanding command(s)\n",
6236 ctrl_info->scsi_host->host_no, device->bus, device->target,
904f2bfd 6237 lun, msecs_waiting / 1000, cmds_outstanding);
18ff5f08 6238 return -ETIMEDOUT;
061ef06a 6239 }
18ff5f08
KB		 6240 if (time_after(jiffies, warning_timeout)) {
6241 dev_warn(&ctrl_info->pci_dev->dev,
6242 "scsi %d:%d:%d:%d: waiting %lu seconds for %d outstanding command(s)\n",
6243 ctrl_info->scsi_host->host_no, device->bus, device->target,
904f2bfd 6244 lun, msecs_waiting / 1000, cmds_outstanding);
42dc0426 6245 warning_timeout = (PQI_PENDING_IO_WARNING_TIMEOUT_SECS * HZ) + jiffies;
4fd22c13 6246 }
061ef06a
KB		 6247 usleep_range(1000, 2000);
6248 }
6249
6250 return 0;
6251}
6252
14bb215d
KB		 6253static void pqi_lun_reset_complete(struct pqi_io_request *io_request,
6254 void *context)
6c223761 6255{
14bb215d 6256 struct completion *waiting = context;
6c223761 6257
14bb215d
KB		 6258 complete(waiting);
6259}
6c223761 6260
c2922f17 6261#define PQI_LUN_RESET_POLL_COMPLETION_SECS 10
14bb215d
KB		 6262
6263static int pqi_wait_for_lun_reset_completion(struct pqi_ctrl_info *ctrl_info,
904f2bfd 6264 struct pqi_scsi_dev *device, u8 lun, struct completion *wait)
14bb215d
KB		 6265{
6266 int rc;
18ff5f08 6267 unsigned int wait_secs;
6ce1ddf5 6268 int cmds_outstanding;
18ff5f08
KB		 6269
6270 wait_secs = 0;
14bb215d
KB		 6271
6272 while (1) {
6273 if (wait_for_completion_io_timeout(wait,
42dc0426 6274 PQI_LUN_RESET_POLL_COMPLETION_SECS * HZ)) {
14bb215d
KB		 6275 rc = 0;
6276 break;
6c223761
KB		 6277 }
6278
14bb215d
KB		 6279 pqi_check_ctrl_health(ctrl_info);
6280 if (pqi_ctrl_offline(ctrl_info)) {
4e8415e3 6281 rc = -ENXIO;
14bb215d
KB		 6282 break;
6283 }
18ff5f08
KB		 6284
6285 wait_secs += PQI_LUN_RESET_POLL_COMPLETION_SECS;
904f2bfd 6286 cmds_outstanding = atomic_read(&device->scsi_cmds_outstanding[lun]);
18ff5f08 6287 dev_warn(&ctrl_info->pci_dev->dev,
6ce1ddf5 6288 "scsi %d:%d:%d:%d: waiting %u seconds for LUN reset to complete (%d command(s) outstanding)\n",
904f2bfd 6289 ctrl_info->scsi_host->host_no, device->bus, device->target, lun, wait_secs, cmds_outstanding);
6c223761 6290 }
6c223761 6291
14bb215d 6292 return rc;
6c223761
KB		 6293}
6294
18ff5f08
KB		 6295#define PQI_LUN_RESET_FIRMWARE_TIMEOUT_SECS 30
6296
153c45dd 6297static int pqi_lun_reset(struct pqi_ctrl_info *ctrl_info, struct pqi_scsi_dev *device, u8 lun)
6c223761
KB		 6298{
6299 int rc;
6300 struct pqi_io_request *io_request;
6301 DECLARE_COMPLETION_ONSTACK(wait);
6302 struct pqi_task_management_request *request;
6303
b27ac2fa 6304 io_request = pqi_alloc_io_request(ctrl_info, NULL);
14bb215d 6305 io_request->io_complete_callback = pqi_lun_reset_complete;
6c223761
KB		 6306 io_request->context = &wait;
6307
6308 request = io_request->iu;
6309 memset(request, 0, sizeof(*request));
6310
6311 request->header.iu_type = PQI_REQUEST_IU_TASK_MANAGEMENT;
6312 put_unaligned_le16(sizeof(*request) - PQI_REQUEST_HEADER_LENGTH,
6313 &request->header.iu_length);
6314 put_unaligned_le16(io_request->index, &request->request_id);
6315 memcpy(request->lun_number, device->scsi3addr,
6316 sizeof(request->lun_number));
904f2bfd 6317 if (!pqi_is_logical_device(device) && ctrl_info->multi_lun_device_supported)
153c45dd 6318 request->ml_device_lun_number = lun;
6c223761 6319 request->task_management_function = SOP_TASK_MANAGEMENT_LUN_RESET;
c2922f17 6320 if (ctrl_info->tmf_iu_timeout_supported)
18ff5f08 6321 put_unaligned_le16(PQI_LUN_RESET_FIRMWARE_TIMEOUT_SECS, &request->timeout);
6c223761 6322
583891c9 6323 pqi_start_io(ctrl_info, &ctrl_info->queue_groups[PQI_DEFAULT_QUEUE_GROUP], RAID_PATH,
6c223761
KB		 6324 io_request);
6325
153c45dd 6326 rc = pqi_wait_for_lun_reset_completion(ctrl_info, device, lun, &wait);
14bb215d 6327 if (rc == 0)
6c223761 6328 rc = io_request->status;
6c223761
KB		 6329
6330 pqi_free_io_request(io_request);
6c223761
KB		 6331
6332 return rc;
6333}
6334
18ff5f08
KB		 6335#define PQI_LUN_RESET_RETRIES 3
6336#define PQI_LUN_RESET_RETRY_INTERVAL_MSECS (10 * 1000)
6337#define PQI_LUN_RESET_PENDING_IO_TIMEOUT_MSECS (10 * 60 * 1000)
6338#define PQI_LUN_RESET_FAILED_PENDING_IO_TIMEOUT_MSECS (2 * 60 * 1000)
6c223761 6339
153c45dd 6340static int pqi_lun_reset_with_retries(struct pqi_ctrl_info *ctrl_info, struct pqi_scsi_dev *device, u8 lun)
6c223761 6341{
18ff5f08
KB		 6342 int reset_rc;
6343 int wait_rc;
3406384b 6344 unsigned int retries;
18ff5f08 6345 unsigned long timeout_msecs;
6c223761 6346
3406384b 6347 for (retries = 0;;) {
153c45dd
KB		 6348 reset_rc = pqi_lun_reset(ctrl_info, device, lun);
6349 if (reset_rc == 0 || reset_rc == -ENODEV || reset_rc == -ENXIO || ++retries > PQI_LUN_RESET_RETRIES)
3406384b
MR		 6350 break;
6351 msleep(PQI_LUN_RESET_RETRY_INTERVAL_MSECS);
6352 }
429fab70 6353
18ff5f08
KB		 6354 timeout_msecs = reset_rc ? PQI_LUN_RESET_FAILED_PENDING_IO_TIMEOUT_MSECS :
6355 PQI_LUN_RESET_PENDING_IO_TIMEOUT_MSECS;
4fd22c13 6356
153c45dd 6357 wait_rc = pqi_device_wait_for_pending_io(ctrl_info, device, lun, timeout_msecs);
18ff5f08
KB		 6358 if (wait_rc && reset_rc == 0)
6359 reset_rc = wait_rc;
6c223761 6360
18ff5f08 6361 return reset_rc == 0 ? SUCCESS : FAILED;
6c223761
KB		 6362}
6363
153c45dd 6364static int pqi_device_reset(struct pqi_ctrl_info *ctrl_info, struct pqi_scsi_dev *device, u8 lun)
4fd22c13
MR		 6365{
6366 int rc;
6367
4fd22c13
MR		 6368 pqi_ctrl_block_requests(ctrl_info);
6369 pqi_ctrl_wait_until_quiesced(ctrl_info);
153c45dd 6370 pqi_fail_io_queued_for_device(ctrl_info, device, lun);
4fd22c13 6371 rc = pqi_wait_until_inbound_queues_empty(ctrl_info);
153c45dd
KB		 6372 pqi_device_reset_start(device, lun);
6373 pqi_ctrl_unblock_requests(ctrl_info);
4fd22c13
MR		 6374 if (rc)
6375 rc = FAILED;
6376 else
153c45dd
KB		 6377 rc = pqi_lun_reset_with_retries(ctrl_info, device, lun);
6378 pqi_device_reset_done(device, lun);
429fab70 6379
4fd22c13
MR		 6380 return rc;
6381}
6382
153c45dd 6383static int pqi_device_reset_handler(struct pqi_ctrl_info *ctrl_info, struct pqi_scsi_dev *device, u8 lun, struct scsi_cmnd *scmd, u8 scsi_opcode)
6c223761
KB		 6384{
6385 int rc;
6c223761 6386
37f33181
KB		 6387 mutex_lock(&ctrl_info->lun_reset_mutex);
6388
6c223761 6389 dev_err(&ctrl_info->pci_dev->dev,
e1b91949
MR		 6390 "resetting scsi %d:%d:%d:%u SCSI cmd at %p due to cmd opcode 0x%02x\n",
6391 ctrl_info->scsi_host->host_no, device->bus, device->target, lun, scmd, scsi_opcode);
6c223761 6392
7561a7e4 6393 pqi_check_ctrl_health(ctrl_info);
37f33181 6394 if (pqi_ctrl_offline(ctrl_info))
7561a7e4 6395 rc = FAILED;
37f33181 6396 else
153c45dd 6397 rc = pqi_device_reset(ctrl_info, device, lun);
429fab70 6398
6c223761 6399 dev_err(&ctrl_info->pci_dev->dev,
153c45dd
KB		 6400 "reset of scsi %d:%d:%d:%u: %s\n",
6401 ctrl_info->scsi_host->host_no, device->bus, device->target, lun,
6c223761
KB		 6402 rc == SUCCESS ? "SUCCESS" : "FAILED");
6403
37f33181
KB		 6404 mutex_unlock(&ctrl_info->lun_reset_mutex);
6405
6c223761
KB		 6406 return rc;
6407}
6408
153c45dd
KB		 6409static int pqi_eh_device_reset_handler(struct scsi_cmnd *scmd)
6410{
6411 struct Scsi_Host *shost;
6412 struct pqi_ctrl_info *ctrl_info;
6413 struct pqi_scsi_dev *device;
6414 u8 scsi_opcode;
6415
6416 shost = scmd->device->host;
6417 ctrl_info = shost_to_hba(shost);
6418 device = scmd->device->hostdata;
6419 scsi_opcode = scmd->cmd_len > 0 ? scmd->cmnd[0] : 0xff;
6420
6421 return pqi_device_reset_handler(ctrl_info, device, (u8)scmd->device->lun, scmd, scsi_opcode);
6422}
6423
6424static void pqi_tmf_worker(struct work_struct *work)
6425{
6426 struct pqi_tmf_work *tmf_work;
6427 struct scsi_cmnd *scmd;
6428
6429 tmf_work = container_of(work, struct pqi_tmf_work, work_struct);
6430 scmd = (struct scsi_cmnd *)xchg(&tmf_work->scmd, NULL);
6431
6432 pqi_device_reset_handler(tmf_work->ctrl_info, tmf_work->device, tmf_work->lun, scmd, tmf_work->scsi_opcode);
6433}
6434
6435static int pqi_eh_abort_handler(struct scsi_cmnd *scmd)
6436{
6437 struct Scsi_Host *shost;
6438 struct pqi_ctrl_info *ctrl_info;
6439 struct pqi_scsi_dev *device;
6440 struct pqi_tmf_work *tmf_work;
6441 DECLARE_COMPLETION_ONSTACK(wait);
6442
6443 shost = scmd->device->host;
6444 ctrl_info = shost_to_hba(shost);
e1b91949 6445 device = scmd->device->hostdata;
153c45dd
KB		 6446
6447 dev_err(&ctrl_info->pci_dev->dev,
e1b91949
MR		 6448 "attempting TASK ABORT on scsi %d:%d:%d:%d for SCSI cmd at %p\n",
6449 shost->host_no, device->bus, device->target, (int)scmd->device->lun, scmd);
153c45dd
KB		 6450
6451 if (cmpxchg(&scmd->host_scribble, PQI_NO_COMPLETION, (void *)&wait) == NULL) {
6452 dev_err(&ctrl_info->pci_dev->dev,
e1b91949
MR		 6453 "scsi %d:%d:%d:%d for SCSI cmd at %p already completed\n",
6454 shost->host_no, device->bus, device->target, (int)scmd->device->lun, scmd);
153c45dd
KB		 6455 scmd->result = DID_RESET << 16;
6456 goto out;
6457 }
6458
153c45dd
KB		 6459 tmf_work = &device->tmf_work[scmd->device->lun];
6460
6461 if (cmpxchg(&tmf_work->scmd, NULL, scmd) == NULL) {
6462 tmf_work->ctrl_info = ctrl_info;
6463 tmf_work->device = device;
6464 tmf_work->lun = (u8)scmd->device->lun;
6465 tmf_work->scsi_opcode = scmd->cmd_len > 0 ? scmd->cmnd[0] : 0xff;
6466 schedule_work(&tmf_work->work_struct);
6467 }
6468
6469 wait_for_completion(&wait);
6470
6471 dev_err(&ctrl_info->pci_dev->dev,
e1b91949
MR		 6472 "TASK ABORT on scsi %d:%d:%d:%d for SCSI cmd at %p: SUCCESS\n",
6473 shost->host_no, device->bus, device->target, (int)scmd->device->lun, scmd);
153c45dd
KB		 6474
6475out:
6476
6477 return SUCCESS;
6478}
6479
6c223761
KB		 6480static int pqi_slave_alloc(struct scsi_device *sdev)
6481{
6482 struct pqi_scsi_dev *device;
6483 unsigned long flags;
6484 struct pqi_ctrl_info *ctrl_info;
6485 struct scsi_target *starget;
6486 struct sas_rphy *rphy;
6487
6488 ctrl_info = shost_to_hba(sdev->host);
6489
6490 spin_lock_irqsave(&ctrl_info->scsi_device_list_lock, flags);
6491
6492 if (sdev_channel(sdev) == PQI_PHYSICAL_DEVICE_BUS) {
6493 starget = scsi_target(sdev);
6494 rphy = target_to_rphy(starget);
6495 device = pqi_find_device_by_sas_rphy(ctrl_info, rphy);
6496 if (device) {
d4dc6aea
KB		 6497 if (device->target_lun_valid) {
6498 device->ignore_device = true;
6499 } else {
6500 device->target = sdev_id(sdev);
6501 device->lun = sdev->lun;
6502 device->target_lun_valid = true;
6503 }
6c223761
KB		 6504 }
6505 } else {
6506 device = pqi_find_scsi_dev(ctrl_info, sdev_channel(sdev),
6507 sdev_id(sdev), sdev->lun);
6508 }
6509
94086f5b 6510 if (device) {
6c223761
KB		 6511 sdev->hostdata = device;
6512 device->sdev = sdev;
6513 if (device->queue_depth) {
6514 device->advertised_queue_depth = device->queue_depth;
6515 scsi_change_queue_depth(sdev,
6516 device->advertised_queue_depth);
6517 }
99a12b48 6518 if (pqi_is_logical_device(device)) {
b6e2ef67 6519 pqi_disable_write_same(sdev);
99a12b48 6520 } else {
2b447f81 6521 sdev->allow_restart = 1;
99a12b48
KB		 6522 if (device->device_type == SA_DEVICE_TYPE_NVME)
6523 pqi_disable_write_same(sdev);
6524 }
6c223761
KB		 6525 }
6526
6527 spin_unlock_irqrestore(&ctrl_info->scsi_device_list_lock, flags);
6528
6529 return 0;
6530}
6531
a4e1d0b7 6532static void pqi_map_queues(struct Scsi_Host *shost)
52198226
CH		 6533{
6534 struct pqi_ctrl_info *ctrl_info = shost_to_hba(shost);
6535
a4e1d0b7
BVA		 6536 blk_mq_pci_map_queues(&shost->tag_set.map[HCTX_TYPE_DEFAULT],
6537 ctrl_info->pci_dev, 0);
52198226
CH		 6538}
6539
d4dc6aea
KB		 6540static inline bool pqi_is_tape_changer_device(struct pqi_scsi_dev *device)
6541{
6542 return device->devtype == TYPE_TAPE || device->devtype == TYPE_MEDIUM_CHANGER;
6543}
6544
ce143793
KB		 6545static int pqi_slave_configure(struct scsi_device *sdev)
6546{
d4dc6aea 6547 int rc = 0;
ce143793
KB		 6548 struct pqi_scsi_dev *device;
6549
6550 device = sdev->hostdata;
6551 device->devtype = sdev->type;
6552
d4dc6aea
KB		 6553 if (pqi_is_tape_changer_device(device) && device->ignore_device) {
6554 rc = -ENXIO;
6555 device->ignore_device = false;
6556 }
6557
6558 return rc;
ce143793
KB		 6559}
6560
2d80f405
KB		 6561static void pqi_slave_destroy(struct scsi_device *sdev)
6562{
6563 struct pqi_ctrl_info *ctrl_info;
6564 struct pqi_scsi_dev *device;
6565 int mutex_acquired;
6566 unsigned long flags;
6567
6568 ctrl_info = shost_to_hba(sdev->host);
6569
6570 mutex_acquired = mutex_trylock(&ctrl_info->scan_mutex);
6571 if (!mutex_acquired)
6572 return;
6573
6574 device = sdev->hostdata;
6575 if (!device) {
6576 mutex_unlock(&ctrl_info->scan_mutex);
6577 return;
6578 }
6579
cc9befcb
KM		 6580 device->lun_count--;
6581 if (device->lun_count > 0) {
6582 mutex_unlock(&ctrl_info->scan_mutex);
6583 return;
6584 }
6585
2d80f405
KB		 6586 spin_lock_irqsave(&ctrl_info->scsi_device_list_lock, flags);
6587 list_del(&device->scsi_device_list_entry);
6588 spin_unlock_irqrestore(&ctrl_info->scsi_device_list_lock, flags);
6589
6590 mutex_unlock(&ctrl_info->scan_mutex);
6591
6592 pqi_dev_info(ctrl_info, "removed", device);
6593 pqi_free_device(device);
6594}
6595
8b664fef 6596static int pqi_getpciinfo_ioctl(struct pqi_ctrl_info *ctrl_info, void __user *arg)
6c223761
KB		 6597{
6598 struct pci_dev *pci_dev;
6599 u32 subsystem_vendor;
6600 u32 subsystem_device;
e9c39117 6601 cciss_pci_info_struct pci_info;
6c223761
KB		 6602
6603 if (!arg)
6604 return -EINVAL;
6605
6606 pci_dev = ctrl_info->pci_dev;
6607
e9c39117
KB		 6608 pci_info.domain = pci_domain_nr(pci_dev->bus);
6609 pci_info.bus = pci_dev->bus->number;
6610 pci_info.dev_fn = pci_dev->devfn;
6c223761
KB		 6611 subsystem_vendor = pci_dev->subsystem_vendor;
6612 subsystem_device = pci_dev->subsystem_device;
e9c39117 6613 pci_info.board_id = ((subsystem_device << 16) & 0xffff0000) | subsystem_vendor;
6c223761 6614
e9c39117 6615 if (copy_to_user(arg, &pci_info, sizeof(pci_info)))
6c223761
KB		 6616 return -EFAULT;
6617
6618 return 0;
6619}
6620
6621static int pqi_getdrivver_ioctl(void __user *arg)
6622{
6623 u32 version;
6624
6625 if (!arg)
6626 return -EINVAL;
6627
6628 version = (DRIVER_MAJOR << 28) | (DRIVER_MINOR << 24) |
6629 (DRIVER_RELEASE << 16) | DRIVER_REVISION;
6630
6631 if (copy_to_user(arg, &version, sizeof(version)))
6632 return -EFAULT;
6633
6634 return 0;
6635}
6636
6637struct ciss_error_info {
6638 u8 scsi_status;
6639 int command_status;
6640 size_t sense_data_length;
6641};
6642
6643static void pqi_error_info_to_ciss(struct pqi_raid_error_info *pqi_error_info,
6644 struct ciss_error_info *ciss_error_info)
6645{
6646 int ciss_cmd_status;
6647 size_t sense_data_length;
6648
6649 switch (pqi_error_info->data_out_result) {
6650 case PQI_DATA_IN_OUT_GOOD:
6651 ciss_cmd_status = CISS_CMD_STATUS_SUCCESS;
6652 break;
6653 case PQI_DATA_IN_OUT_UNDERFLOW:
6654 ciss_cmd_status = CISS_CMD_STATUS_DATA_UNDERRUN;
6655 break;
6656 case PQI_DATA_IN_OUT_BUFFER_OVERFLOW:
6657 ciss_cmd_status = CISS_CMD_STATUS_DATA_OVERRUN;
6658 break;
6659 case PQI_DATA_IN_OUT_PROTOCOL_ERROR:
6660 case PQI_DATA_IN_OUT_BUFFER_ERROR:
6661 case PQI_DATA_IN_OUT_BUFFER_OVERFLOW_DESCRIPTOR_AREA:
6662 case PQI_DATA_IN_OUT_BUFFER_OVERFLOW_BRIDGE:
6663 case PQI_DATA_IN_OUT_ERROR:
6664 ciss_cmd_status = CISS_CMD_STATUS_PROTOCOL_ERROR;
6665 break;
6666 case PQI_DATA_IN_OUT_HARDWARE_ERROR:
6667 case PQI_DATA_IN_OUT_PCIE_FABRIC_ERROR:
6668 case PQI_DATA_IN_OUT_PCIE_COMPLETION_TIMEOUT:
6669 case PQI_DATA_IN_OUT_PCIE_COMPLETER_ABORT_RECEIVED:
6670 case PQI_DATA_IN_OUT_PCIE_UNSUPPORTED_REQUEST_RECEIVED:
6671 case PQI_DATA_IN_OUT_PCIE_ECRC_CHECK_FAILED:
6672 case PQI_DATA_IN_OUT_PCIE_UNSUPPORTED_REQUEST:
6673 case PQI_DATA_IN_OUT_PCIE_ACS_VIOLATION:
6674 case PQI_DATA_IN_OUT_PCIE_TLP_PREFIX_BLOCKED:
6675 case PQI_DATA_IN_OUT_PCIE_POISONED_MEMORY_READ:
6676 ciss_cmd_status = CISS_CMD_STATUS_HARDWARE_ERROR;
6677 break;
6678 case PQI_DATA_IN_OUT_UNSOLICITED_ABORT:
6679 ciss_cmd_status = CISS_CMD_STATUS_UNSOLICITED_ABORT;
6680 break;
6681 case PQI_DATA_IN_OUT_ABORTED:
6682 ciss_cmd_status = CISS_CMD_STATUS_ABORTED;
6683 break;
6684 case PQI_DATA_IN_OUT_TIMEOUT:
6685 ciss_cmd_status = CISS_CMD_STATUS_TIMEOUT;
6686 break;
6687 default:
6688 ciss_cmd_status = CISS_CMD_STATUS_TARGET_STATUS;
6689 break;
6690 }
6691
6692 sense_data_length =
6693 get_unaligned_le16(&pqi_error_info->sense_data_length);
6694 if (sense_data_length == 0)
6695 sense_data_length =
6696 get_unaligned_le16(&pqi_error_info->response_data_length);
6697 if (sense_data_length)
6698 if (sense_data_length > sizeof(pqi_error_info->data))
6699 sense_data_length = sizeof(pqi_error_info->data);
6700
6701 ciss_error_info->scsi_status = pqi_error_info->status;
6702 ciss_error_info->command_status = ciss_cmd_status;
6703 ciss_error_info->sense_data_length = sense_data_length;
6704}
6705
6706static int pqi_passthru_ioctl(struct pqi_ctrl_info *ctrl_info, void __user *arg)
6707{
6708 int rc;
6709 char *kernel_buffer = NULL;
6710 u16 iu_length;
6711 size_t sense_data_length;
6712 IOCTL_Command_struct iocommand;
6713 struct pqi_raid_path_request request;
6714 struct pqi_raid_error_info pqi_error_info;
6715 struct ciss_error_info ciss_error_info;
6716
6717 if (pqi_ctrl_offline(ctrl_info))
6718 return -ENXIO;
2790cd4d
KB		 6719 if (pqi_ofa_in_progress(ctrl_info) && pqi_ctrl_blocked(ctrl_info))
6720 return -EBUSY;
6c223761
KB		 6721 if (!arg)
6722 return -EINVAL;
6723 if (!capable(CAP_SYS_RAWIO))
6724 return -EPERM;
6725 if (copy_from_user(&iocommand, arg, sizeof(iocommand)))
6726 return -EFAULT;
6727 if (iocommand.buf_size < 1 &&
6728 iocommand.Request.Type.Direction != XFER_NONE)
6729 return -EINVAL;
6730 if (iocommand.Request.CDBLen > sizeof(request.cdb))
6731 return -EINVAL;
6732 if (iocommand.Request.Type.Type != TYPE_CMD)
6733 return -EINVAL;
6734
6735 switch (iocommand.Request.Type.Direction) {
6736 case XFER_NONE:
6737 case XFER_WRITE:
6738 case XFER_READ:
41555d54 6739 case XFER_READ | XFER_WRITE:
6c223761
KB		 6740 break;
6741 default:
6742 return -EINVAL;
6743 }
6744
6745 if (iocommand.buf_size > 0) {
6746 kernel_buffer = kmalloc(iocommand.buf_size, GFP_KERNEL);
6747 if (!kernel_buffer)
6748 return -ENOMEM;
6749 if (iocommand.Request.Type.Direction & XFER_WRITE) {
6750 if (copy_from_user(kernel_buffer, iocommand.buf,
6751 iocommand.buf_size)) {
6752 rc = -EFAULT;
6753 goto out;
6754 }
6755 } else {
6756 memset(kernel_buffer, 0, iocommand.buf_size);
6757 }
6758 }
6759
6760 memset(&request, 0, sizeof(request));
6761
6762 request.header.iu_type = PQI_REQUEST_IU_RAID_PATH_IO;
6763 iu_length = offsetof(struct pqi_raid_path_request, sg_descriptors) -
6764 PQI_REQUEST_HEADER_LENGTH;
6765 memcpy(request.lun_number, iocommand.LUN_info.LunAddrBytes,
6766 sizeof(request.lun_number));
6767 memcpy(request.cdb, iocommand.Request.CDB, iocommand.Request.CDBLen);
6768 request.additional_cdb_bytes_usage = SOP_ADDITIONAL_CDB_BYTES_0;
6769
6770 switch (iocommand.Request.Type.Direction) {
6771 case XFER_NONE:
6772 request.data_direction = SOP_NO_DIRECTION_FLAG;
6773 break;
6774 case XFER_WRITE:
6775 request.data_direction = SOP_WRITE_FLAG;
6776 break;
6777 case XFER_READ:
6778 request.data_direction = SOP_READ_FLAG;
6779 break;
41555d54
KB		 6780 case XFER_READ | XFER_WRITE:
6781 request.data_direction = SOP_BIDIRECTIONAL;
6782 break;
6c223761
KB		 6783 }
6784
6785 request.task_attribute = SOP_TASK_ATTRIBUTE_SIMPLE;
6786
6787 if (iocommand.buf_size > 0) {
6788 put_unaligned_le32(iocommand.buf_size, &request.buffer_length);
6789
6790 rc = pqi_map_single(ctrl_info->pci_dev,
6791 &request.sg_descriptors[0], kernel_buffer,
6917a9cc 6792 iocommand.buf_size, DMA_BIDIRECTIONAL);
6c223761
KB		 6793 if (rc)
6794 goto out;
6795
6796 iu_length += sizeof(request.sg_descriptors[0]);
6797 }
6798
6799 put_unaligned_le16(iu_length, &request.header.iu_length);
6800
21432010 6801 if (ctrl_info->raid_iu_timeout_supported)
6802 put_unaligned_le32(iocommand.Request.Timeout, &request.timeout);
6803
6c223761 6804 rc = pqi_submit_raid_request_synchronous(ctrl_info, &request.header,
ae0c189d 6805 PQI_SYNC_FLAGS_INTERRUPTABLE, &pqi_error_info);
6c223761
KB		 6806
6807 if (iocommand.buf_size > 0)
6808 pqi_pci_unmap(ctrl_info->pci_dev, request.sg_descriptors, 1,
6917a9cc 6809 DMA_BIDIRECTIONAL);
6c223761
KB		 6810
6811 memset(&iocommand.error_info, 0, sizeof(iocommand.error_info));
6812
6813 if (rc == 0) {
6814 pqi_error_info_to_ciss(&pqi_error_info, &ciss_error_info);
6815 iocommand.error_info.ScsiStatus = ciss_error_info.scsi_status;
6816 iocommand.error_info.CommandStatus =
6817 ciss_error_info.command_status;
6818 sense_data_length = ciss_error_info.sense_data_length;
6819 if (sense_data_length) {
6820 if (sense_data_length >
6821 sizeof(iocommand.error_info.SenseInfo))
6822 sense_data_length =
6823 sizeof(iocommand.error_info.SenseInfo);
6824 memcpy(iocommand.error_info.SenseInfo,
6825 pqi_error_info.data, sense_data_length);
6826 iocommand.error_info.SenseLen = sense_data_length;
6827 }
6828 }
6829
6830 if (copy_to_user(arg, &iocommand, sizeof(iocommand))) {
6831 rc = -EFAULT;
6832 goto out;
6833 }
6834
6835 if (rc == 0 && iocommand.buf_size > 0 &&
6836 (iocommand.Request.Type.Direction & XFER_READ)) {
6837 if (copy_to_user(iocommand.buf, kernel_buffer,
6838 iocommand.buf_size)) {
6839 rc = -EFAULT;
6840 }
6841 }
6842
6843out:
6844 kfree(kernel_buffer);
6845
6846 return rc;
6847}
6848
6f4e626f
NC		 6849static int pqi_ioctl(struct scsi_device *sdev, unsigned int cmd,
6850 void __user *arg)
6c223761
KB		 6851{
6852 int rc;
6853 struct pqi_ctrl_info *ctrl_info;
6854
6855 ctrl_info = shost_to_hba(sdev->host);
6856
6857 switch (cmd) {
6858 case CCISS_DEREGDISK:
6859 case CCISS_REGNEWDISK:
6860 case CCISS_REGNEWD:
6861 rc = pqi_scan_scsi_devices(ctrl_info);
6862 break;
6863 case CCISS_GETPCIINFO:
6864 rc = pqi_getpciinfo_ioctl(ctrl_info, arg);
6865 break;
6866 case CCISS_GETDRIVVER:
6867 rc = pqi_getdrivver_ioctl(arg);
6868 break;
6869 case CCISS_PASSTHRU:
6870 rc = pqi_passthru_ioctl(ctrl_info, arg);
6871 break;
6872 default:
6873 rc = -EINVAL;
6874 break;
6875 }
6876
6877 return rc;
6878}
6879
6d90615f 6880static ssize_t pqi_firmware_version_show(struct device *dev,
6c223761
KB		 6881 struct device_attribute *attr, char *buffer)
6882{
6c223761
KB		 6883 struct Scsi_Host *shost;
6884 struct pqi_ctrl_info *ctrl_info;
6885
6886 shost = class_to_shost(dev);
6887 ctrl_info = shost_to_hba(shost);
6888
a4256252 6889 return scnprintf(buffer, PAGE_SIZE, "%s\n", ctrl_info->firmware_version);
6d90615f
MB		 6890}
6891
6892static ssize_t pqi_driver_version_show(struct device *dev,
6893 struct device_attribute *attr, char *buffer)
6894{
a4256252 6895 return scnprintf(buffer, PAGE_SIZE, "%s\n", DRIVER_VERSION BUILD_TIMESTAMP);
6d90615f 6896}
6c223761 6897
6d90615f
MB		 6898static ssize_t pqi_serial_number_show(struct device *dev,
6899 struct device_attribute *attr, char *buffer)
6900{
6901 struct Scsi_Host *shost;
6902 struct pqi_ctrl_info *ctrl_info;
6903
6904 shost = class_to_shost(dev);
6905 ctrl_info = shost_to_hba(shost);
6906
a4256252 6907 return scnprintf(buffer, PAGE_SIZE, "%s\n", ctrl_info->serial_number);
6d90615f
MB		 6908}
6909
6910static ssize_t pqi_model_show(struct device *dev,
6911 struct device_attribute *attr, char *buffer)
6912{
6913 struct Scsi_Host *shost;
6914 struct pqi_ctrl_info *ctrl_info;
6915
6916 shost = class_to_shost(dev);
6917 ctrl_info = shost_to_hba(shost);
6918
a4256252 6919 return scnprintf(buffer, PAGE_SIZE, "%s\n", ctrl_info->model);
6d90615f
MB		 6920}
6921
6922static ssize_t pqi_vendor_show(struct device *dev,
6923 struct device_attribute *attr, char *buffer)
6924{
6925 struct Scsi_Host *shost;
6926 struct pqi_ctrl_info *ctrl_info;
6927
6928 shost = class_to_shost(dev);
6929 ctrl_info = shost_to_hba(shost);
6930
a4256252 6931 return scnprintf(buffer, PAGE_SIZE, "%s\n", ctrl_info->vendor);
6c223761
KB		 6932}
6933
6934static ssize_t pqi_host_rescan_store(struct device *dev,
6935 struct device_attribute *attr, const char *buffer, size_t count)
6936{
6937 struct Scsi_Host *shost = class_to_shost(dev);
6938
6939 pqi_scan_start(shost);
6940
6941 return count;
6942}
6943
3c50976f
KB		 6944static ssize_t pqi_lockup_action_show(struct device *dev,
6945 struct device_attribute *attr, char *buffer)
6946{
6947 int count = 0;
6948 unsigned int i;
6949
6950 for (i = 0; i < ARRAY_SIZE(pqi_lockup_actions); i++) {
6951 if (pqi_lockup_actions[i].action == pqi_lockup_action)
181aea89 6952 count += scnprintf(buffer + count, PAGE_SIZE - count,
3c50976f
KB		 6953 "[%s] ", pqi_lockup_actions[i].name);
6954 else
181aea89 6955 count += scnprintf(buffer + count, PAGE_SIZE - count,
3c50976f
KB		 6956 "%s ", pqi_lockup_actions[i].name);
6957 }
6958
181aea89 6959 count += scnprintf(buffer + count, PAGE_SIZE - count, "\n");
3c50976f
KB		 6960
6961 return count;
6962}
6963
6964static ssize_t pqi_lockup_action_store(struct device *dev,
6965 struct device_attribute *attr, const char *buffer, size_t count)
6966{
6967 unsigned int i;
6968 char *action_name;
6969 char action_name_buffer[32];
6970
41e5d6f6 6971 strscpy(action_name_buffer, buffer, sizeof(action_name_buffer));
3c50976f
KB		 6972 action_name = strstrip(action_name_buffer);
6973
6974 for (i = 0; i < ARRAY_SIZE(pqi_lockup_actions); i++) {
6975 if (strcmp(action_name, pqi_lockup_actions[i].name) == 0) {
6976 pqi_lockup_action = pqi_lockup_actions[i].action;
6977 return count;
6978 }
6979 }
6980
6981 return -EINVAL;
6982}
6983
5be746d7
DB		 6984static ssize_t pqi_host_enable_stream_detection_show(struct device *dev,
6985 struct device_attribute *attr, char *buffer)
6986{
6987 struct Scsi_Host *shost = class_to_shost(dev);
6988 struct pqi_ctrl_info *ctrl_info = shost_to_hba(shost);
6989
6990 return scnprintf(buffer, 10, "%x\n",
6991 ctrl_info->enable_stream_detection);
6992}
6993
6994static ssize_t pqi_host_enable_stream_detection_store(struct device *dev,
6995 struct device_attribute *attr, const char *buffer, size_t count)
6996{
6997 struct Scsi_Host *shost = class_to_shost(dev);
6998 struct pqi_ctrl_info *ctrl_info = shost_to_hba(shost);
6999 u8 set_stream_detection = 0;
7000
7001 if (kstrtou8(buffer, 0, &set_stream_detection))
7002 return -EINVAL;
7003
7004 if (set_stream_detection > 0)
7005 set_stream_detection = 1;
7006
7007 ctrl_info->enable_stream_detection = set_stream_detection;
7008
7009 return count;
7010}
7011
6702d2c4
DB		 7012static ssize_t pqi_host_enable_r5_writes_show(struct device *dev,
7013 struct device_attribute *attr, char *buffer)
7014{
7015 struct Scsi_Host *shost = class_to_shost(dev);
7016 struct pqi_ctrl_info *ctrl_info = shost_to_hba(shost);
7017
7018 return scnprintf(buffer, 10, "%x\n", ctrl_info->enable_r5_writes);
7019}
7020
7021static ssize_t pqi_host_enable_r5_writes_store(struct device *dev,
7022 struct device_attribute *attr, const char *buffer, size_t count)
7023{
7024 struct Scsi_Host *shost = class_to_shost(dev);
7025 struct pqi_ctrl_info *ctrl_info = shost_to_hba(shost);
7026 u8 set_r5_writes = 0;
7027
7028 if (kstrtou8(buffer, 0, &set_r5_writes))
7029 return -EINVAL;
7030
7031 if (set_r5_writes > 0)
7032 set_r5_writes = 1;
7033
7034 ctrl_info->enable_r5_writes = set_r5_writes;
7035
7036 return count;
7037}
7038
7039static ssize_t pqi_host_enable_r6_writes_show(struct device *dev,
7040 struct device_attribute *attr, char *buffer)
7041{
7042 struct Scsi_Host *shost = class_to_shost(dev);
7043 struct pqi_ctrl_info *ctrl_info = shost_to_hba(shost);
7044
7045 return scnprintf(buffer, 10, "%x\n", ctrl_info->enable_r6_writes);
7046}
7047
7048static ssize_t pqi_host_enable_r6_writes_store(struct device *dev,
7049 struct device_attribute *attr, const char *buffer, size_t count)
7050{
7051 struct Scsi_Host *shost = class_to_shost(dev);
7052 struct pqi_ctrl_info *ctrl_info = shost_to_hba(shost);
7053 u8 set_r6_writes = 0;
7054
7055 if (kstrtou8(buffer, 0, &set_r6_writes))
7056 return -EINVAL;
7057
7058 if (set_r6_writes > 0)
7059 set_r6_writes = 1;
7060
7061 ctrl_info->enable_r6_writes = set_r6_writes;
7062
7063 return count;
7064}
7065
6d90615f
MB		 7066static DEVICE_ATTR(driver_version, 0444, pqi_driver_version_show, NULL);
7067static DEVICE_ATTR(firmware_version, 0444, pqi_firmware_version_show, NULL);
7068static DEVICE_ATTR(model, 0444, pqi_model_show, NULL);
7069static DEVICE_ATTR(serial_number, 0444, pqi_serial_number_show, NULL);
7070static DEVICE_ATTR(vendor, 0444, pqi_vendor_show, NULL);
cbe0c7b1 7071static DEVICE_ATTR(rescan, 0200, NULL, pqi_host_rescan_store);
583891c9
KB		 7072static DEVICE_ATTR(lockup_action, 0644, pqi_lockup_action_show,
7073 pqi_lockup_action_store);
5be746d7
DB		 7074static DEVICE_ATTR(enable_stream_detection, 0644,
7075 pqi_host_enable_stream_detection_show,
7076 pqi_host_enable_stream_detection_store);
6702d2c4
DB		 7077static DEVICE_ATTR(enable_r5_writes, 0644,
7078 pqi_host_enable_r5_writes_show, pqi_host_enable_r5_writes_store);
7079static DEVICE_ATTR(enable_r6_writes, 0644,
7080 pqi_host_enable_r6_writes_show, pqi_host_enable_r6_writes_store);
6c223761 7081
64fc9015
BVA		 7082static struct attribute *pqi_shost_attrs[] = {
7083 &dev_attr_driver_version.attr,
7084 &dev_attr_firmware_version.attr,
7085 &dev_attr_model.attr,
7086 &dev_attr_serial_number.attr,
7087 &dev_attr_vendor.attr,
7088 &dev_attr_rescan.attr,
7089 &dev_attr_lockup_action.attr,
7090 &dev_attr_enable_stream_detection.attr,
7091 &dev_attr_enable_r5_writes.attr,
7092 &dev_attr_enable_r6_writes.attr,
6c223761
KB		 7093 NULL
7094};
7095
64fc9015
BVA		 7096ATTRIBUTE_GROUPS(pqi_shost);
7097
cd128244
DC		 7098static ssize_t pqi_unique_id_show(struct device *dev,
7099 struct device_attribute *attr, char *buffer)
7100{
7101 struct pqi_ctrl_info *ctrl_info;
7102 struct scsi_device *sdev;
7103 struct pqi_scsi_dev *device;
7104 unsigned long flags;
5b083b30 7105 u8 unique_id[16];
cd128244
DC		 7106
7107 sdev = to_scsi_device(dev);
7108 ctrl_info = shost_to_hba(sdev->host);
7109
331f7e99
SB		 7110 if (pqi_ctrl_offline(ctrl_info))
7111 return -ENODEV;
7112
cd128244
DC		 7113 spin_lock_irqsave(&ctrl_info->scsi_device_list_lock, flags);
7114
7115 device = sdev->hostdata;
7116 if (!device) {
8b664fef 7117 spin_unlock_irqrestore(&ctrl_info->scsi_device_list_lock, flags);
cd128244
DC		 7118 return -ENODEV;
7119 }
5b083b30 7120
28ca6d87
MM		 7121 if (device->is_physical_device)
7122 memcpy(unique_id, device->wwid, sizeof(device->wwid));
7123 else
5b083b30 7124 memcpy(unique_id, device->volume_id, sizeof(device->volume_id));
cd128244
DC		 7125
7126 spin_unlock_irqrestore(&ctrl_info->scsi_device_list_lock, flags);
7127
a4256252 7128 return scnprintf(buffer, PAGE_SIZE,
583891c9
KB		 7129 "%02X%02X%02X%02X%02X%02X%02X%02X"
7130 "%02X%02X%02X%02X%02X%02X%02X%02X\n",
5b083b30
KB		 7131 unique_id[0], unique_id[1], unique_id[2], unique_id[3],
7132 unique_id[4], unique_id[5], unique_id[6], unique_id[7],
7133 unique_id[8], unique_id[9], unique_id[10], unique_id[11],
7134 unique_id[12], unique_id[13], unique_id[14], unique_id[15]);
cd128244
DC		 7135}
7136
7137static ssize_t pqi_lunid_show(struct device *dev,
7138 struct device_attribute *attr, char *buffer)
7139{
7140 struct pqi_ctrl_info *ctrl_info;
7141 struct scsi_device *sdev;
7142 struct pqi_scsi_dev *device;
7143 unsigned long flags;
7144 u8 lunid[8];
7145
7146 sdev = to_scsi_device(dev);
7147 ctrl_info = shost_to_hba(sdev->host);
7148
331f7e99
SB		 7149 if (pqi_ctrl_offline(ctrl_info))
7150 return -ENODEV;
7151
cd128244
DC		 7152 spin_lock_irqsave(&ctrl_info->scsi_device_list_lock, flags);
7153
7154 device = sdev->hostdata;
7155 if (!device) {
8b664fef 7156 spin_unlock_irqrestore(&ctrl_info->scsi_device_list_lock, flags);
cd128244
DC		 7157 return -ENODEV;
7158 }
694c5d5b 7159
cd128244
DC		 7160 memcpy(lunid, device->scsi3addr, sizeof(lunid));
7161
7162 spin_unlock_irqrestore(&ctrl_info->scsi_device_list_lock, flags);
7163
a4256252 7164 return scnprintf(buffer, PAGE_SIZE, "0x%8phN\n", lunid);
cd128244
DC		 7165}
7166
694c5d5b
KB		 7167#define MAX_PATHS 8
7168
cd128244
DC		 7169static ssize_t pqi_path_info_show(struct device *dev,
7170 struct device_attribute *attr, char *buf)
7171{
7172 struct pqi_ctrl_info *ctrl_info;
7173 struct scsi_device *sdev;
7174 struct pqi_scsi_dev *device;
7175 unsigned long flags;
7176 int i;
7177 int output_len = 0;
7178 u8 box;
7179 u8 bay;
694c5d5b 7180 u8 path_map_index;
cd128244 7181 char *active;
694c5d5b 7182 u8 phys_connector[2];
cd128244
DC		 7183
7184 sdev = to_scsi_device(dev);
7185 ctrl_info = shost_to_hba(sdev->host);
7186
331f7e99
SB		 7187 if (pqi_ctrl_offline(ctrl_info))
7188 return -ENODEV;
7189
cd128244
DC		 7190 spin_lock_irqsave(&ctrl_info->scsi_device_list_lock, flags);
7191
7192 device = sdev->hostdata;
7193 if (!device) {
8b664fef 7194 spin_unlock_irqrestore(&ctrl_info->scsi_device_list_lock, flags);
cd128244
DC		 7195 return -ENODEV;
7196 }
7197
7198 bay = device->bay;
7199 for (i = 0; i < MAX_PATHS; i++) {
694c5d5b 7200 path_map_index = 1 << i;
cd128244
DC		 7201 if (i == device->active_path_index)
7202 active = "Active";
7203 else if (device->path_map & path_map_index)
7204 active = "Inactive";
7205 else
7206 continue;
7207
7208 output_len += scnprintf(buf + output_len,
7209 PAGE_SIZE - output_len,
7210 "[%d:%d:%d:%d] %20.20s ",
7211 ctrl_info->scsi_host->host_no,
7212 device->bus, device->target,
7213 device->lun,
7214 scsi_device_type(device->devtype));
7215
7216 if (device->devtype == TYPE_RAID ||
7217 pqi_is_logical_device(device))
7218 goto end_buffer;
7219
7220 memcpy(&phys_connector, &device->phys_connector[i],
7221 sizeof(phys_connector));
7222 if (phys_connector[0] < '0')
7223 phys_connector[0] = '0';
7224 if (phys_connector[1] < '0')
7225 phys_connector[1] = '0';
7226
7227 output_len += scnprintf(buf + output_len,
7228 PAGE_SIZE - output_len,
7229 "PORT: %.2s ", phys_connector);
7230
7231 box = device->box[i];
7232 if (box != 0 && box != 0xFF)
7233 output_len += scnprintf(buf + output_len,
7234 PAGE_SIZE - output_len,
7235 "BOX: %hhu ", box);
7236
7237 if ((device->devtype == TYPE_DISK ||
7238 device->devtype == TYPE_ZBC) &&
7239 pqi_expose_device(device))
7240 output_len += scnprintf(buf + output_len,
7241 PAGE_SIZE - output_len,
7242 "BAY: %hhu ", bay);
7243
7244end_buffer:
7245 output_len += scnprintf(buf + output_len,
7246 PAGE_SIZE - output_len,
7247 "%s\n", active);
7248 }
7249
7250 spin_unlock_irqrestore(&ctrl_info->scsi_device_list_lock, flags);
694c5d5b 7251
cd128244
DC		 7252 return output_len;
7253}
7254
6c223761
KB		 7255static ssize_t pqi_sas_address_show(struct device *dev,
7256 struct device_attribute *attr, char *buffer)
7257{
7258 struct pqi_ctrl_info *ctrl_info;
7259 struct scsi_device *sdev;
7260 struct pqi_scsi_dev *device;
7261 unsigned long flags;
7262 u64 sas_address;
7263
7264 sdev = to_scsi_device(dev);
7265 ctrl_info = shost_to_hba(sdev->host);
7266
331f7e99
SB		 7267 if (pqi_ctrl_offline(ctrl_info))
7268 return -ENODEV;
7269
6c223761
KB		 7270 spin_lock_irqsave(&ctrl_info->scsi_device_list_lock, flags);
7271
7272 device = sdev->hostdata;
00598b05 7273 if (!device) {
8b664fef 7274 spin_unlock_irqrestore(&ctrl_info->scsi_device_list_lock, flags);
6c223761
KB		 7275 return -ENODEV;
7276 }
694c5d5b 7277
6c223761
KB		 7278 sas_address = device->sas_address;
7279
7280 spin_unlock_irqrestore(&ctrl_info->scsi_device_list_lock, flags);
7281
a4256252 7282 return scnprintf(buffer, PAGE_SIZE, "0x%016llx\n", sas_address);
6c223761
KB		 7283}
7284
7285static ssize_t pqi_ssd_smart_path_enabled_show(struct device *dev,
7286 struct device_attribute *attr, char *buffer)
7287{
7288 struct pqi_ctrl_info *ctrl_info;
7289 struct scsi_device *sdev;
7290 struct pqi_scsi_dev *device;
7291 unsigned long flags;
7292
7293 sdev = to_scsi_device(dev);
7294 ctrl_info = shost_to_hba(sdev->host);
7295
331f7e99
SB		 7296 if (pqi_ctrl_offline(ctrl_info))
7297 return -ENODEV;
7298
6c223761
KB		 7299 spin_lock_irqsave(&ctrl_info->scsi_device_list_lock, flags);
7300
7301 device = sdev->hostdata;
8b664fef
KB		 7302 if (!device) {
7303 spin_unlock_irqrestore(&ctrl_info->scsi_device_list_lock, flags);
7304 return -ENODEV;
7305 }
7306
588a63fe 7307 buffer[0] = device->raid_bypass_enabled ? '1' : '0';
6c223761
KB		 7308 buffer[1] = '\n';
7309 buffer[2] = '\0';
7310
7311 spin_unlock_irqrestore(&ctrl_info->scsi_device_list_lock, flags);
7312
7313 return 2;
7314}
7315
a9f93392
KB		 7316static ssize_t pqi_raid_level_show(struct device *dev,
7317 struct device_attribute *attr, char *buffer)
7318{
7319 struct pqi_ctrl_info *ctrl_info;
7320 struct scsi_device *sdev;
7321 struct pqi_scsi_dev *device;
7322 unsigned long flags;
7323 char *raid_level;
7324
7325 sdev = to_scsi_device(dev);
7326 ctrl_info = shost_to_hba(sdev->host);
7327
331f7e99
SB		 7328 if (pqi_ctrl_offline(ctrl_info))
7329 return -ENODEV;
7330
a9f93392
KB		 7331 spin_lock_irqsave(&ctrl_info->scsi_device_list_lock, flags);
7332
7333 device = sdev->hostdata;
8b664fef
KB		 7334 if (!device) {
7335 spin_unlock_irqrestore(&ctrl_info->scsi_device_list_lock, flags);
7336 return -ENODEV;
7337 }
a9f93392 7338
cbe42ac1 7339 if (pqi_is_logical_device(device) && device->devtype == TYPE_DISK)
a9f93392
KB		 7340 raid_level = pqi_raid_level_to_string(device->raid_level);
7341 else
7342 raid_level = "N/A";
7343
7344 spin_unlock_irqrestore(&ctrl_info->scsi_device_list_lock, flags);
7345
a4256252 7346 return scnprintf(buffer, PAGE_SIZE, "%s\n", raid_level);
a9f93392
KB		 7347}
7348
8b664fef
KB		 7349static ssize_t pqi_raid_bypass_cnt_show(struct device *dev,
7350 struct device_attribute *attr, char *buffer)
7351{
7352 struct pqi_ctrl_info *ctrl_info;
7353 struct scsi_device *sdev;
7354 struct pqi_scsi_dev *device;
7355 unsigned long flags;
80d560d9 7356 unsigned int raid_bypass_cnt;
8b664fef
KB		 7357
7358 sdev = to_scsi_device(dev);
7359 ctrl_info = shost_to_hba(sdev->host);
7360
331f7e99
SB		 7361 if (pqi_ctrl_offline(ctrl_info))
7362 return -ENODEV;
7363
8b664fef
KB		 7364 spin_lock_irqsave(&ctrl_info->scsi_device_list_lock, flags);
7365
7366 device = sdev->hostdata;
7367 if (!device) {
7368 spin_unlock_irqrestore(&ctrl_info->scsi_device_list_lock, flags);
7369 return -ENODEV;
7370 }
7371
80d560d9 7372 raid_bypass_cnt = device->raid_bypass_cnt;
8b664fef
KB		 7373
7374 spin_unlock_irqrestore(&ctrl_info->scsi_device_list_lock, flags);
7375
a4256252 7376 return scnprintf(buffer, PAGE_SIZE, "0x%x\n", raid_bypass_cnt);
8b664fef
KB		 7377}
7378
2a47834d
GW		 7379static ssize_t pqi_sas_ncq_prio_enable_show(struct device *dev,
7380 struct device_attribute *attr, char *buf)
7381{
7382 struct pqi_ctrl_info *ctrl_info;
7383 struct scsi_device *sdev;
7384 struct pqi_scsi_dev *device;
7385 unsigned long flags;
7386 int output_len = 0;
7387
7388 sdev = to_scsi_device(dev);
7389 ctrl_info = shost_to_hba(sdev->host);
7390
331f7e99
SB		 7391 if (pqi_ctrl_offline(ctrl_info))
7392 return -ENODEV;
7393
2a47834d
GW		 7394 spin_lock_irqsave(&ctrl_info->scsi_device_list_lock, flags);
7395
7396 device = sdev->hostdata;
7397 if (!device) {
7398 spin_unlock_irqrestore(&ctrl_info->scsi_device_list_lock, flags);
7399 return -ENODEV;
7400 }
7401
7402 output_len = snprintf(buf, PAGE_SIZE, "%d\n",
7403 device->ncq_prio_enable);
7404 spin_unlock_irqrestore(&ctrl_info->scsi_device_list_lock, flags);
7405
7406 return output_len;
7407}
7408
7409static ssize_t pqi_sas_ncq_prio_enable_store(struct device *dev,
7410 struct device_attribute *attr,
7411 const char *buf, size_t count)
7412{
7413 struct pqi_ctrl_info *ctrl_info;
7414 struct scsi_device *sdev;
7415 struct pqi_scsi_dev *device;
7416 unsigned long flags;
7417 u8 ncq_prio_enable = 0;
7418
7419 if (kstrtou8(buf, 0, &ncq_prio_enable))
7420 return -EINVAL;
7421
7422 sdev = to_scsi_device(dev);
7423 ctrl_info = shost_to_hba(sdev->host);
7424
7425 spin_lock_irqsave(&ctrl_info->scsi_device_list_lock, flags);
7426
7427 device = sdev->hostdata;
7428
7429 if (!device) {
7430 spin_unlock_irqrestore(&ctrl_info->scsi_device_list_lock, flags);
7431 return -ENODEV;
7432 }
7433
68f79204 7434 if (!device->ncq_prio_support) {
2a47834d
GW		 7435 spin_unlock_irqrestore(&ctrl_info->scsi_device_list_lock, flags);
7436 return -EINVAL;
7437 }
7438
7439 device->ncq_prio_enable = ncq_prio_enable;
7440
7441 spin_unlock_irqrestore(&ctrl_info->scsi_device_list_lock, flags);
7442
7443 return strlen(buf);
7444}
7445
d2c7583f
DB		 7446static ssize_t pqi_numa_node_show(struct device *dev,
7447 struct device_attribute *attr, char *buffer)
7448{
7449 struct scsi_device *sdev;
7450 struct pqi_ctrl_info *ctrl_info;
7451
7452 sdev = to_scsi_device(dev);
7453 ctrl_info = shost_to_hba(sdev->host);
7454
7455 return scnprintf(buffer, PAGE_SIZE, "%d\n", ctrl_info->numa_node);
7456}
7457
cd128244
DC		 7458static DEVICE_ATTR(lunid, 0444, pqi_lunid_show, NULL);
7459static DEVICE_ATTR(unique_id, 0444, pqi_unique_id_show, NULL);
7460static DEVICE_ATTR(path_info, 0444, pqi_path_info_show, NULL);
cbe0c7b1 7461static DEVICE_ATTR(sas_address, 0444, pqi_sas_address_show, NULL);
8b664fef 7462static DEVICE_ATTR(ssd_smart_path_enabled, 0444, pqi_ssd_smart_path_enabled_show, NULL);
a9f93392 7463static DEVICE_ATTR(raid_level, 0444, pqi_raid_level_show, NULL);
8b664fef 7464static DEVICE_ATTR(raid_bypass_cnt, 0444, pqi_raid_bypass_cnt_show, NULL);
2a47834d
GW		 7465static DEVICE_ATTR(sas_ncq_prio_enable, 0644,
7466 pqi_sas_ncq_prio_enable_show, pqi_sas_ncq_prio_enable_store);
d2c7583f 7467static DEVICE_ATTR(numa_node, 0444, pqi_numa_node_show, NULL);
6c223761 7468
64fc9015
BVA		 7469static struct attribute *pqi_sdev_attrs[] = {
7470 &dev_attr_lunid.attr,
7471 &dev_attr_unique_id.attr,
7472 &dev_attr_path_info.attr,
7473 &dev_attr_sas_address.attr,
7474 &dev_attr_ssd_smart_path_enabled.attr,
7475 &dev_attr_raid_level.attr,
7476 &dev_attr_raid_bypass_cnt.attr,
2a47834d 7477 &dev_attr_sas_ncq_prio_enable.attr,
d2c7583f 7478 &dev_attr_numa_node.attr,
6c223761
KB		 7479 NULL
7480};
7481
64fc9015
BVA		 7482ATTRIBUTE_GROUPS(pqi_sdev);
7483
077126d6 7484static const struct scsi_host_template pqi_driver_template = {
6c223761
KB		 7485 .module = THIS_MODULE,
7486 .name = DRIVER_NAME_SHORT,
7487 .proc_name = DRIVER_NAME_SHORT,
7488 .queuecommand = pqi_scsi_queue_command,
7489 .scan_start = pqi_scan_start,
7490 .scan_finished = pqi_scan_finished,
7491 .this_id = -1,
6c223761 7492 .eh_device_reset_handler = pqi_eh_device_reset_handler,
153c45dd 7493 .eh_abort_handler = pqi_eh_abort_handler,
6c223761
KB		 7494 .ioctl = pqi_ioctl,
7495 .slave_alloc = pqi_slave_alloc,
ce143793 7496 .slave_configure = pqi_slave_configure,
2d80f405 7497 .slave_destroy = pqi_slave_destroy,
52198226 7498 .map_queues = pqi_map_queues,
64fc9015
BVA		 7499 .sdev_groups = pqi_sdev_groups,
7500 .shost_groups = pqi_shost_groups,
c1ea387d 7501 .cmd_size = sizeof(struct pqi_cmd_priv),
6c223761
KB		 7502};
7503
7504static int pqi_register_scsi(struct pqi_ctrl_info *ctrl_info)
7505{
7506 int rc;
7507 struct Scsi_Host *shost;
7508
7509 shost = scsi_host_alloc(&pqi_driver_template, sizeof(ctrl_info));
7510 if (!shost) {
583891c9 7511 dev_err(&ctrl_info->pci_dev->dev, "scsi_host_alloc failed\n");
6c223761
KB		 7512 return -ENOMEM;
7513 }
7514
7515 shost->io_port = 0;
7516 shost->n_io_port = 0;
7517 shost->this_id = -1;
7518 shost->max_channel = PQI_MAX_BUS;
7519 shost->max_cmd_len = MAX_COMMAND_SIZE;
904f2bfd 7520 shost->max_lun = PQI_MAX_LUNS_PER_DEVICE;
6c223761
KB		 7521 shost->max_id = ~0;
7522 shost->max_sectors = ctrl_info->max_sectors;
7523 shost->can_queue = ctrl_info->scsi_ml_can_queue;
7524 shost->cmd_per_lun = shost->can_queue;
7525 shost->sg_tablesize = ctrl_info->sg_tablesize;
7526 shost->transportt = pqi_sas_transport_template;
52198226 7527 shost->irq = pci_irq_vector(ctrl_info->pci_dev, 0);
6c223761
KB		 7528 shost->unique_id = shost->irq;
7529 shost->nr_hw_queues = ctrl_info->num_queue_groups;
c6d3ee20 7530 shost->host_tagset = 1;
6c223761
KB		 7531 shost->hostdata[0] = (unsigned long)ctrl_info;
7532
7533 rc = scsi_add_host(shost, &ctrl_info->pci_dev->dev);
7534 if (rc) {
583891c9 7535 dev_err(&ctrl_info->pci_dev->dev, "scsi_add_host failed\n");
6c223761
KB		 7536 goto free_host;
7537 }
7538
7539 rc = pqi_add_sas_host(shost, ctrl_info);
7540 if (rc) {
583891c9 7541 dev_err(&ctrl_info->pci_dev->dev, "add SAS host failed\n");
6c223761
KB		 7542 goto remove_host;
7543 }
7544
7545 ctrl_info->scsi_host = shost;
7546
7547 return 0;
7548
7549remove_host:
7550 scsi_remove_host(shost);
7551free_host:
7552 scsi_host_put(shost);
7553
7554 return rc;
7555}
7556
7557static void pqi_unregister_scsi(struct pqi_ctrl_info *ctrl_info)
7558{
7559 struct Scsi_Host *shost;
7560
7561 pqi_delete_sas_host(ctrl_info);
7562
7563 shost = ctrl_info->scsi_host;
7564 if (!shost)
7565 return;
7566
7567 scsi_remove_host(shost);
7568 scsi_host_put(shost);
7569}
7570
336b6819
KB		 7571static int pqi_wait_for_pqi_reset_completion(struct pqi_ctrl_info *ctrl_info)
7572{
7573 int rc = 0;
7574 struct pqi_device_registers __iomem *pqi_registers;
7575 unsigned long timeout;
7576 unsigned int timeout_msecs;
7577 union pqi_reset_register reset_reg;
6c223761 7578
336b6819
KB		 7579 pqi_registers = ctrl_info->pqi_registers;
7580 timeout_msecs = readw(&pqi_registers->max_reset_timeout) * 100;
7581 timeout = msecs_to_jiffies(timeout_msecs) + jiffies;
7582
7583 while (1) {
7584 msleep(PQI_RESET_POLL_INTERVAL_MSECS);
7585 reset_reg.all_bits = readl(&pqi_registers->device_reset);
7586 if (reset_reg.bits.reset_action == PQI_RESET_ACTION_COMPLETED)
7587 break;
85b41834 7588 if (!sis_is_firmware_running(ctrl_info)) {
336b6819
KB		 7589 rc = -ENXIO;
7590 break;
7591 }
7592 if (time_after(jiffies, timeout)) {
7593 rc = -ETIMEDOUT;
7594 break;
7595 }
7596 }
7597
7598 return rc;
7599}
6c223761
KB		 7600
7601static int pqi_reset(struct pqi_ctrl_info *ctrl_info)
7602{
7603 int rc;
336b6819
KB		 7604 union pqi_reset_register reset_reg;
7605
7606 if (ctrl_info->pqi_reset_quiesce_supported) {
7607 rc = sis_pqi_reset_quiesce(ctrl_info);
7608 if (rc) {
7609 dev_err(&ctrl_info->pci_dev->dev,
583891c9 7610 "PQI reset failed during quiesce with error %d\n", rc);
336b6819
KB		 7611 return rc;
7612 }
7613 }
6c223761 7614
336b6819
KB		 7615 reset_reg.all_bits = 0;
7616 reset_reg.bits.reset_type = PQI_RESET_TYPE_HARD_RESET;
7617 reset_reg.bits.reset_action = PQI_RESET_ACTION_RESET;
6c223761 7618
336b6819 7619 writel(reset_reg.all_bits, &ctrl_info->pqi_registers->device_reset);
6c223761 7620
336b6819 7621 rc = pqi_wait_for_pqi_reset_completion(ctrl_info);
6c223761
KB		 7622 if (rc)
7623 dev_err(&ctrl_info->pci_dev->dev,
336b6819 7624 "PQI reset failed with error %d\n", rc);
6c223761
KB		 7625
7626 return rc;
7627}
7628
6d90615f
MB		 7629static int pqi_get_ctrl_serial_number(struct pqi_ctrl_info *ctrl_info)
7630{
7631 int rc;
7632 struct bmic_sense_subsystem_info *sense_info;
7633
7634 sense_info = kzalloc(sizeof(*sense_info), GFP_KERNEL);
7635 if (!sense_info)
7636 return -ENOMEM;
7637
7638 rc = pqi_sense_subsystem_info(ctrl_info, sense_info);
7639 if (rc)
7640 goto out;
7641
7642 memcpy(ctrl_info->serial_number, sense_info->ctrl_serial_number,
7643 sizeof(sense_info->ctrl_serial_number));
7644 ctrl_info->serial_number[sizeof(sense_info->ctrl_serial_number)] = '\0';
7645
7646out:
7647 kfree(sense_info);
7648
7649 return rc;
7650}
7651
7652static int pqi_get_ctrl_product_details(struct pqi_ctrl_info *ctrl_info)
6c223761
KB		 7653{
7654 int rc;
7655 struct bmic_identify_controller *identify;
7656
7657 identify = kmalloc(sizeof(*identify), GFP_KERNEL);
7658 if (!identify)
7659 return -ENOMEM;
7660
7661 rc = pqi_identify_controller(ctrl_info, identify);
7662 if (rc)
7663 goto out;
7664
598bef8d
KB		 7665 if (get_unaligned_le32(&identify->extra_controller_flags) &
7666 BMIC_IDENTIFY_EXTRA_FLAGS_LONG_FW_VERSION_SUPPORTED) {
7667 memcpy(ctrl_info->firmware_version,
7668 identify->firmware_version_long,
7669 sizeof(identify->firmware_version_long));
7670 } else {
7671 memcpy(ctrl_info->firmware_version,
7672 identify->firmware_version_short,
7673 sizeof(identify->firmware_version_short));
7674 ctrl_info->firmware_version
7675 [sizeof(identify->firmware_version_short)] = '\0';
7676 snprintf(ctrl_info->firmware_version +
7677 strlen(ctrl_info->firmware_version),
7678 sizeof(ctrl_info->firmware_version) -
7679 sizeof(identify->firmware_version_short),
7680 "-%u",
7681 get_unaligned_le16(&identify->firmware_build_number));
7682 }
6c223761 7683
6d90615f
MB		 7684 memcpy(ctrl_info->model, identify->product_id,
7685 sizeof(identify->product_id));
7686 ctrl_info->model[sizeof(identify->product_id)] = '\0';
7687
7688 memcpy(ctrl_info->vendor, identify->vendor_id,
7689 sizeof(identify->vendor_id));
7690 ctrl_info->vendor[sizeof(identify->vendor_id)] = '\0';
7691
1d393227
GW		 7692 dev_info(&ctrl_info->pci_dev->dev,
7693 "Firmware version: %s\n", ctrl_info->firmware_version);
7694
6c223761
KB		 7695out:
7696 kfree(identify);
7697
7698 return rc;
7699}
7700
b212c251
KB		 7701struct pqi_config_table_section_info {
7702 struct pqi_ctrl_info *ctrl_info;
7703 void *section;
7704 u32 section_offset;
7705 void __iomem *section_iomem_addr;
7706};
7707
7708static inline bool pqi_is_firmware_feature_supported(
7709 struct pqi_config_table_firmware_features *firmware_features,
7710 unsigned int bit_position)
98f87667 7711{
b212c251 7712 unsigned int byte_index;
98f87667 7713
b212c251 7714 byte_index = bit_position / BITS_PER_BYTE;
98f87667 7715
b212c251
KB		 7716 if (byte_index >= le16_to_cpu(firmware_features->num_elements))
7717 return false;
98f87667 7718
b212c251
KB		 7719 return firmware_features->features_supported[byte_index] &
7720 (1 << (bit_position % BITS_PER_BYTE)) ? true : false;
7721}
7722
7723static inline bool pqi_is_firmware_feature_enabled(
7724 struct pqi_config_table_firmware_features *firmware_features,
7725 void __iomem *firmware_features_iomem_addr,
7726 unsigned int bit_position)
7727{
7728 unsigned int byte_index;
7729 u8 __iomem *features_enabled_iomem_addr;
7730
7731 byte_index = (bit_position / BITS_PER_BYTE) +
7732 (le16_to_cpu(firmware_features->num_elements) * 2);
7733
7734 features_enabled_iomem_addr = firmware_features_iomem_addr +
7735 offsetof(struct pqi_config_table_firmware_features,
7736 features_supported) + byte_index;
7737
7738 return *((__force u8 *)features_enabled_iomem_addr) &
7739 (1 << (bit_position % BITS_PER_BYTE)) ? true : false;
7740}
7741
7742static inline void pqi_request_firmware_feature(
7743 struct pqi_config_table_firmware_features *firmware_features,
7744 unsigned int bit_position)
7745{
7746 unsigned int byte_index;
7747
7748 byte_index = (bit_position / BITS_PER_BYTE) +
7749 le16_to_cpu(firmware_features->num_elements);
7750
7751 firmware_features->features_supported[byte_index] |=
7752 (1 << (bit_position % BITS_PER_BYTE));
7753}
7754
7755static int pqi_config_table_update(struct pqi_ctrl_info *ctrl_info,
7756 u16 first_section, u16 last_section)
7757{
7758 struct pqi_vendor_general_request request;
7759
7760 memset(&request, 0, sizeof(request));
7761
7762 request.header.iu_type = PQI_REQUEST_IU_VENDOR_GENERAL;
7763 put_unaligned_le16(sizeof(request) - PQI_REQUEST_HEADER_LENGTH,
7764 &request.header.iu_length);
7765 put_unaligned_le16(PQI_VENDOR_GENERAL_CONFIG_TABLE_UPDATE,
7766 &request.function_code);
7767 put_unaligned_le16(first_section,
7768 &request.data.config_table_update.first_section);
7769 put_unaligned_le16(last_section,
7770 &request.data.config_table_update.last_section);
7771
ae0c189d 7772 return pqi_submit_raid_request_synchronous(ctrl_info, &request.header, 0, NULL);
b212c251
KB		 7773}
7774
7775static int pqi_enable_firmware_features(struct pqi_ctrl_info *ctrl_info,
7776 struct pqi_config_table_firmware_features *firmware_features,
7777 void __iomem *firmware_features_iomem_addr)
7778{
7779 void *features_requested;
7780 void __iomem *features_requested_iomem_addr;
f6cc2a77 7781 void __iomem *host_max_known_feature_iomem_addr;
b212c251
KB		 7782
7783 features_requested = firmware_features->features_supported +
7784 le16_to_cpu(firmware_features->num_elements);
7785
7786 features_requested_iomem_addr = firmware_features_iomem_addr +
7787 (features_requested - (void *)firmware_features);
7788
7789 memcpy_toio(features_requested_iomem_addr, features_requested,
7790 le16_to_cpu(firmware_features->num_elements));
7791
f6cc2a77
KB		 7792 if (pqi_is_firmware_feature_supported(firmware_features,
7793 PQI_FIRMWARE_FEATURE_MAX_KNOWN_FEATURE)) {
7794 host_max_known_feature_iomem_addr =
7795 features_requested_iomem_addr +
7796 (le16_to_cpu(firmware_features->num_elements) * 2) +
7797 sizeof(__le16);
c23efd9e
DB		 7798 writeb(PQI_FIRMWARE_FEATURE_MAXIMUM & 0xFF, host_max_known_feature_iomem_addr);
7799 writeb((PQI_FIRMWARE_FEATURE_MAXIMUM & 0xFF00) >> 8, host_max_known_feature_iomem_addr + 1);
f6cc2a77
KB		 7800 }
7801
b212c251
KB		 7802 return pqi_config_table_update(ctrl_info,
7803 PQI_CONFIG_TABLE_SECTION_FIRMWARE_FEATURES,
7804 PQI_CONFIG_TABLE_SECTION_FIRMWARE_FEATURES);
7805}
7806
7807struct pqi_firmware_feature {
7808 char *feature_name;
7809 unsigned int feature_bit;
7810 bool supported;
7811 bool enabled;
7812 void (*feature_status)(struct pqi_ctrl_info *ctrl_info,
7813 struct pqi_firmware_feature *firmware_feature);
7814};
7815
7816static void pqi_firmware_feature_status(struct pqi_ctrl_info *ctrl_info,
7817 struct pqi_firmware_feature *firmware_feature)
7818{
7819 if (!firmware_feature->supported) {
7820 dev_info(&ctrl_info->pci_dev->dev, "%s not supported by controller\n",
7821 firmware_feature->feature_name);
7822 return;
7823 }
7824
7825 if (firmware_feature->enabled) {
7826 dev_info(&ctrl_info->pci_dev->dev,
7827 "%s enabled\n", firmware_feature->feature_name);
7828 return;
7829 }
7830
7831 dev_err(&ctrl_info->pci_dev->dev, "failed to enable %s\n",
7832 firmware_feature->feature_name);
7833}
7834
21432010 7835static void pqi_ctrl_update_feature_flags(struct pqi_ctrl_info *ctrl_info,
7836 struct pqi_firmware_feature *firmware_feature)
7837{
7838 switch (firmware_feature->feature_bit) {
f6cc2a77
KB		 7839 case PQI_FIRMWARE_FEATURE_RAID_1_WRITE_BYPASS:
7840 ctrl_info->enable_r1_writes = firmware_feature->enabled;
7841 break;
7842 case PQI_FIRMWARE_FEATURE_RAID_5_WRITE_BYPASS:
7843 ctrl_info->enable_r5_writes = firmware_feature->enabled;
7844 break;
7845 case PQI_FIRMWARE_FEATURE_RAID_6_WRITE_BYPASS:
7846 ctrl_info->enable_r6_writes = firmware_feature->enabled;
7847 break;
21432010 7848 case PQI_FIRMWARE_FEATURE_SOFT_RESET_HANDSHAKE:
7849 ctrl_info->soft_reset_handshake_supported =
4ccc354b
KB		 7850 firmware_feature->enabled &&
7851 pqi_read_soft_reset_status(ctrl_info);
21432010 7852 break;
7853 case PQI_FIRMWARE_FEATURE_RAID_IU_TIMEOUT:
583891c9 7854 ctrl_info->raid_iu_timeout_supported = firmware_feature->enabled;
21432010 7855 break;
c2922f17 7856 case PQI_FIRMWARE_FEATURE_TMF_IU_TIMEOUT:
583891c9 7857 ctrl_info->tmf_iu_timeout_supported = firmware_feature->enabled;
c2922f17 7858 break;
5d1f03e6
MB		 7859 case PQI_FIRMWARE_FEATURE_FW_TRIAGE:
7860 ctrl_info->firmware_triage_supported = firmware_feature->enabled;
9ee5d6e9 7861 pqi_save_fw_triage_setting(ctrl_info, firmware_feature->enabled);
5d1f03e6 7862 break;
28ca6d87
MM		 7863 case PQI_FIRMWARE_FEATURE_RPL_EXTENDED_FORMAT_4_5:
7864 ctrl_info->rpl_extended_format_4_5_supported = firmware_feature->enabled;
7865 break;
904f2bfd
KM		 7866 case PQI_FIRMWARE_FEATURE_MULTI_LUN_DEVICE_SUPPORT:
7867 ctrl_info->multi_lun_device_supported = firmware_feature->enabled;
7868 break;
21432010 7869 }
7870
7871 pqi_firmware_feature_status(ctrl_info, firmware_feature);
7872}
7873
b212c251
KB		 7874static inline void pqi_firmware_feature_update(struct pqi_ctrl_info *ctrl_info,
7875 struct pqi_firmware_feature *firmware_feature)
7876{
7877 if (firmware_feature->feature_status)
7878 firmware_feature->feature_status(ctrl_info, firmware_feature);
7879}
7880
7881static DEFINE_MUTEX(pqi_firmware_features_mutex);
7882
7883static struct pqi_firmware_feature pqi_firmware_features[] = {
7884 {
7885 .feature_name = "Online Firmware Activation",
7886 .feature_bit = PQI_FIRMWARE_FEATURE_OFA,
7887 .feature_status = pqi_firmware_feature_status,
7888 },
7889 {
7890 .feature_name = "Serial Management Protocol",
7891 .feature_bit = PQI_FIRMWARE_FEATURE_SMP,
7892 .feature_status = pqi_firmware_feature_status,
7893 },
f6cc2a77
KB		 7894 {
7895 .feature_name = "Maximum Known Feature",
7896 .feature_bit = PQI_FIRMWARE_FEATURE_MAX_KNOWN_FEATURE,
7897 .feature_status = pqi_firmware_feature_status,
7898 },
7899 {
7900 .feature_name = "RAID 0 Read Bypass",
7901 .feature_bit = PQI_FIRMWARE_FEATURE_RAID_0_READ_BYPASS,
b212c251
KB		 7902 .feature_status = pqi_firmware_feature_status,
7903 },
7904 {
f6cc2a77
KB		 7905 .feature_name = "RAID 1 Read Bypass",
7906 .feature_bit = PQI_FIRMWARE_FEATURE_RAID_1_READ_BYPASS,
7907 .feature_status = pqi_firmware_feature_status,
7908 },
7909 {
7910 .feature_name = "RAID 5 Read Bypass",
7911 .feature_bit = PQI_FIRMWARE_FEATURE_RAID_5_READ_BYPASS,
b212c251
KB		 7912 .feature_status = pqi_firmware_feature_status,
7913 },
f6cc2a77
KB		 7914 {
7915 .feature_name = "RAID 6 Read Bypass",
7916 .feature_bit = PQI_FIRMWARE_FEATURE_RAID_6_READ_BYPASS,
7917 .feature_status = pqi_firmware_feature_status,
7918 },
7919 {
7920 .feature_name = "RAID 0 Write Bypass",
7921 .feature_bit = PQI_FIRMWARE_FEATURE_RAID_0_WRITE_BYPASS,
7922 .feature_status = pqi_firmware_feature_status,
7923 },
7924 {
7925 .feature_name = "RAID 1 Write Bypass",
7926 .feature_bit = PQI_FIRMWARE_FEATURE_RAID_1_WRITE_BYPASS,
7927 .feature_status = pqi_ctrl_update_feature_flags,
7928 },
7929 {
7930 .feature_name = "RAID 5 Write Bypass",
7931 .feature_bit = PQI_FIRMWARE_FEATURE_RAID_5_WRITE_BYPASS,
7932 .feature_status = pqi_ctrl_update_feature_flags,
7933 },
7934 {
7935 .feature_name = "RAID 6 Write Bypass",
7936 .feature_bit = PQI_FIRMWARE_FEATURE_RAID_6_WRITE_BYPASS,
7937 .feature_status = pqi_ctrl_update_feature_flags,
7938 },
4fd22c13
MR		 7939 {
7940 .feature_name = "New Soft Reset Handshake",
7941 .feature_bit = PQI_FIRMWARE_FEATURE_SOFT_RESET_HANDSHAKE,
21432010 7942 .feature_status = pqi_ctrl_update_feature_flags,
7943 },
7944 {
7945 .feature_name = "RAID IU Timeout",
7946 .feature_bit = PQI_FIRMWARE_FEATURE_RAID_IU_TIMEOUT,
7947 .feature_status = pqi_ctrl_update_feature_flags,
4fd22c13 7948 },
c2922f17
MB		 7949 {
7950 .feature_name = "TMF IU Timeout",
7951 .feature_bit = PQI_FIRMWARE_FEATURE_TMF_IU_TIMEOUT,
7952 .feature_status = pqi_ctrl_update_feature_flags,
7953 },
f6cc2a77
KB		 7954 {
7955 .feature_name = "RAID Bypass on encrypted logical volumes on NVMe",
7956 .feature_bit = PQI_FIRMWARE_FEATURE_RAID_BYPASS_ON_ENCRYPTED_NVME,
7957 .feature_status = pqi_firmware_feature_status,
7958 },
5d1f03e6
MB		 7959 {
7960 .feature_name = "Firmware Triage",
7961 .feature_bit = PQI_FIRMWARE_FEATURE_FW_TRIAGE,
7962 .feature_status = pqi_ctrl_update_feature_flags,
7963 },
28ca6d87
MM		 7964 {
7965 .feature_name = "RPL Extended Formats 4 and 5",
7966 .feature_bit = PQI_FIRMWARE_FEATURE_RPL_EXTENDED_FORMAT_4_5,
7967 .feature_status = pqi_ctrl_update_feature_flags,
7968 },
904f2bfd
KM		 7969 {
7970 .feature_name = "Multi-LUN Target",
7971 .feature_bit = PQI_FIRMWARE_FEATURE_MULTI_LUN_DEVICE_SUPPORT,
7972 .feature_status = pqi_ctrl_update_feature_flags,
7973 },
b212c251
KB		 7974};
7975
7976static void pqi_process_firmware_features(
7977 struct pqi_config_table_section_info *section_info)
7978{
7979 int rc;
7980 struct pqi_ctrl_info *ctrl_info;
7981 struct pqi_config_table_firmware_features *firmware_features;
7982 void __iomem *firmware_features_iomem_addr;
7983 unsigned int i;
7984 unsigned int num_features_supported;
7985
7986 ctrl_info = section_info->ctrl_info;
7987 firmware_features = section_info->section;
7988 firmware_features_iomem_addr = section_info->section_iomem_addr;
7989
7990 for (i = 0, num_features_supported = 0;
7991 i < ARRAY_SIZE(pqi_firmware_features); i++) {
7992 if (pqi_is_firmware_feature_supported(firmware_features,
7993 pqi_firmware_features[i].feature_bit)) {
7994 pqi_firmware_features[i].supported = true;
7995 num_features_supported++;
7996 } else {
7997 pqi_firmware_feature_update(ctrl_info,
7998 &pqi_firmware_features[i]);
7999 }
8000 }
8001
8002 if (num_features_supported == 0)
8003 return;
8004
8005 for (i = 0; i < ARRAY_SIZE(pqi_firmware_features); i++) {
8006 if (!pqi_firmware_features[i].supported)
8007 continue;
8008 pqi_request_firmware_feature(firmware_features,
8009 pqi_firmware_features[i].feature_bit);
8010 }
8011
8012 rc = pqi_enable_firmware_features(ctrl_info, firmware_features,
8013 firmware_features_iomem_addr);
8014 if (rc) {
8015 dev_err(&ctrl_info->pci_dev->dev,
8016 "failed to enable firmware features in PQI configuration table\n");
8017 for (i = 0; i < ARRAY_SIZE(pqi_firmware_features); i++) {
8018 if (!pqi_firmware_features[i].supported)
8019 continue;
8020 pqi_firmware_feature_update(ctrl_info,
8021 &pqi_firmware_features[i]);
8022 }
8023 return;
8024 }
8025
8026 for (i = 0; i < ARRAY_SIZE(pqi_firmware_features); i++) {
8027 if (!pqi_firmware_features[i].supported)
8028 continue;
8029 if (pqi_is_firmware_feature_enabled(firmware_features,
8030 firmware_features_iomem_addr,
4fd22c13 8031 pqi_firmware_features[i].feature_bit)) {
583891c9 8032 pqi_firmware_features[i].enabled = true;
4fd22c13 8033 }
b212c251
KB		 8034 pqi_firmware_feature_update(ctrl_info,
8035 &pqi_firmware_features[i]);
8036 }
8037}
8038
8039static void pqi_init_firmware_features(void)
8040{
8041 unsigned int i;
8042
8043 for (i = 0; i < ARRAY_SIZE(pqi_firmware_features); i++) {
8044 pqi_firmware_features[i].supported = false;
8045 pqi_firmware_features[i].enabled = false;
8046 }
8047}
8048
8049static void pqi_process_firmware_features_section(
8050 struct pqi_config_table_section_info *section_info)
8051{
8052 mutex_lock(&pqi_firmware_features_mutex);
8053 pqi_init_firmware_features();
8054 pqi_process_firmware_features(section_info);
8055 mutex_unlock(&pqi_firmware_features_mutex);
8056}
8057
f6cc2a77
KB		 8058/*
8059 * Reset all controller settings that can be initialized during the processing
8060 * of the PQI Configuration Table.
8061 */
8062
4ccc354b
KB		 8063static void pqi_ctrl_reset_config(struct pqi_ctrl_info *ctrl_info)
8064{
8065 ctrl_info->heartbeat_counter = NULL;
8066 ctrl_info->soft_reset_status = NULL;
8067 ctrl_info->soft_reset_handshake_supported = false;
8068 ctrl_info->enable_r1_writes = false;
8069 ctrl_info->enable_r5_writes = false;
8070 ctrl_info->enable_r6_writes = false;
8071 ctrl_info->raid_iu_timeout_supported = false;
8072 ctrl_info->tmf_iu_timeout_supported = false;
5d1f03e6 8073 ctrl_info->firmware_triage_supported = false;
28ca6d87 8074 ctrl_info->rpl_extended_format_4_5_supported = false;
904f2bfd 8075 ctrl_info->multi_lun_device_supported = false;
4ccc354b
KB		 8076}
8077
98f87667
KB		 8078static int pqi_process_config_table(struct pqi_ctrl_info *ctrl_info)
8079{
8080 u32 table_length;
8081 u32 section_offset;
f6cc2a77 8082 bool firmware_feature_section_present;
98f87667
KB		 8083 void __iomem *table_iomem_addr;
8084 struct pqi_config_table *config_table;
8085 struct pqi_config_table_section_header *section;
b212c251 8086 struct pqi_config_table_section_info section_info;
921800a1 8087 struct pqi_config_table_section_info feature_section_info = {0};
98f87667
KB		 8088
8089 table_length = ctrl_info->config_table_length;
b212c251
KB		 8090 if (table_length == 0)
8091 return 0;
98f87667
KB		 8092
8093 config_table = kmalloc(table_length, GFP_KERNEL);
8094 if (!config_table) {
8095 dev_err(&ctrl_info->pci_dev->dev,
d87d5474 8096 "failed to allocate memory for PQI configuration table\n");
98f87667
KB		 8097 return -ENOMEM;
8098 }
8099
8100 /*
8101 * Copy the config table contents from I/O memory space into the
8102 * temporary buffer.
8103 */
583891c9 8104 table_iomem_addr = ctrl_info->iomem_base + ctrl_info->config_table_offset;
98f87667
KB		 8105 memcpy_fromio(config_table, table_iomem_addr, table_length);
8106
f6cc2a77 8107 firmware_feature_section_present = false;
b212c251 8108 section_info.ctrl_info = ctrl_info;
583891c9 8109 section_offset = get_unaligned_le32(&config_table->first_section_offset);
98f87667
KB		 8110
8111 while (section_offset) {
8112 section = (void *)config_table + section_offset;
8113
b212c251
KB		 8114 section_info.section = section;
8115 section_info.section_offset = section_offset;
583891c9 8116 section_info.section_iomem_addr = table_iomem_addr + section_offset;
b212c251 8117
98f87667 8118 switch (get_unaligned_le16(&section->section_id)) {
b212c251 8119 case PQI_CONFIG_TABLE_SECTION_FIRMWARE_FEATURES:
f6cc2a77
KB		 8120 firmware_feature_section_present = true;
8121 feature_section_info = section_info;
b212c251 8122 break;
98f87667 8123 case PQI_CONFIG_TABLE_SECTION_HEARTBEAT:
5a259e32
KB		 8124 if (pqi_disable_heartbeat)
8125 dev_warn(&ctrl_info->pci_dev->dev,
8126 "heartbeat disabled by module parameter\n");
8127 else
8128 ctrl_info->heartbeat_counter =
8129 table_iomem_addr +
8130 section_offset +
583891c9 8131 offsetof(struct pqi_config_table_heartbeat,
5a259e32 8132 heartbeat_counter);
98f87667 8133 break;
4fd22c13
MR		 8134 case PQI_CONFIG_TABLE_SECTION_SOFT_RESET:
8135 ctrl_info->soft_reset_status =
8136 table_iomem_addr +
8137 section_offset +
8138 offsetof(struct pqi_config_table_soft_reset,
583891c9 8139 soft_reset_status);
4fd22c13 8140 break;
98f87667
KB		 8141 }
8142
583891c9 8143 section_offset = get_unaligned_le16(&section->next_section_offset);
98f87667
KB		 8144 }
8145
f6cc2a77
KB		 8146 /*
8147 * We process the firmware feature section after all other sections
8148 * have been processed so that the feature bit callbacks can take
8149 * into account the settings configured by other sections.
8150 */
8151 if (firmware_feature_section_present)
8152 pqi_process_firmware_features_section(&feature_section_info);
8153
98f87667
KB		 8154 kfree(config_table);
8155
8156 return 0;
8157}
8158
162d7753
KB		 8159/* Switches the controller from PQI mode back into SIS mode. */
8160
8161static int pqi_revert_to_sis_mode(struct pqi_ctrl_info *ctrl_info)
8162{
8163 int rc;
8164
061ef06a 8165 pqi_change_irq_mode(ctrl_info, IRQ_MODE_NONE);
162d7753
KB		 8166 rc = pqi_reset(ctrl_info);
8167 if (rc)
8168 return rc;
4f078e24
KB		 8169 rc = sis_reenable_sis_mode(ctrl_info);
8170 if (rc) {
8171 dev_err(&ctrl_info->pci_dev->dev,
8172 "re-enabling SIS mode failed with error %d\n", rc);
8173 return rc;
8174 }
162d7753
KB		 8175 pqi_save_ctrl_mode(ctrl_info, SIS_MODE);
8176
8177 return 0;
8178}
8179
8180/*
8181 * If the controller isn't already in SIS mode, this function forces it into
8182 * SIS mode.
8183 */
8184
8185static int pqi_force_sis_mode(struct pqi_ctrl_info *ctrl_info)
ff6abb73
KB		 8186{
8187 if (!sis_is_firmware_running(ctrl_info))
8188 return -ENXIO;
8189
162d7753
KB		 8190 if (pqi_get_ctrl_mode(ctrl_info) == SIS_MODE)
8191 return 0;
8192
8193 if (sis_is_kernel_up(ctrl_info)) {
8194 pqi_save_ctrl_mode(ctrl_info, SIS_MODE);
8195 return 0;
ff6abb73
KB		 8196 }
8197
162d7753 8198 return pqi_revert_to_sis_mode(ctrl_info);
ff6abb73
KB		 8199}
8200
3ada501d
MR		 8201static void pqi_perform_lockup_action(void)
8202{
8203 switch (pqi_lockup_action) {
8204 case PANIC:
8205 panic("FATAL: Smart Family Controller lockup detected");
8206 break;
8207 case REBOOT:
8208 emergency_restart();
8209 break;
8210 case NONE:
8211 default:
8212 break;
8213 }
8214}
8215
6c223761
KB		 8216static int pqi_ctrl_init(struct pqi_ctrl_info *ctrl_info)
8217{
8218 int rc;
2708a256 8219 u32 product_id;
6c223761 8220
0530736e 8221 if (reset_devices) {
9ee5d6e9
MR		 8222 if (pqi_is_fw_triage_supported(ctrl_info)) {
8223 rc = sis_wait_for_fw_triage_completion(ctrl_info);
8224 if (rc)
8225 return rc;
8226 }
0530736e 8227 sis_soft_reset(ctrl_info);
42dc0426 8228 ssleep(PQI_POST_RESET_DELAY_SECS);
0530736e
KB		 8229 } else {
8230 rc = pqi_force_sis_mode(ctrl_info);
8231 if (rc)
8232 return rc;
8233 }
6c223761
KB		 8234
8235 /*
8236 * Wait until the controller is ready to start accepting SIS
8237 * commands.
8238 */
8239 rc = sis_wait_for_ctrl_ready(ctrl_info);
3ada501d
MR		 8240 if (rc) {
8241 if (reset_devices) {
8242 dev_err(&ctrl_info->pci_dev->dev,
8243 "kdump init failed with error %d\n", rc);
8244 pqi_lockup_action = REBOOT;
8245 pqi_perform_lockup_action();
8246 }
6c223761 8247 return rc;
3ada501d 8248 }
6c223761
KB		 8249
8250 /*
8251 * Get the controller properties. This allows us to determine
8252 * whether or not it supports PQI mode.
8253 */
8254 rc = sis_get_ctrl_properties(ctrl_info);
8255 if (rc) {
8256 dev_err(&ctrl_info->pci_dev->dev,
8257 "error obtaining controller properties\n");
8258 return rc;
8259 }
8260
8261 rc = sis_get_pqi_capabilities(ctrl_info);
8262 if (rc) {
8263 dev_err(&ctrl_info->pci_dev->dev,
8264 "error obtaining controller capabilities\n");
8265 return rc;
8266 }
8267
2708a256
KB		 8268 product_id = sis_get_product_id(ctrl_info);
8269 ctrl_info->product_id = (u8)product_id;
8270 ctrl_info->product_revision = (u8)(product_id >> 8);
8271
d727a776
KB		 8272 if (reset_devices) {
8273 if (ctrl_info->max_outstanding_requests >
8274 PQI_MAX_OUTSTANDING_REQUESTS_KDUMP)
583891c9 8275 ctrl_info->max_outstanding_requests =
d727a776
KB		 8276 PQI_MAX_OUTSTANDING_REQUESTS_KDUMP;
8277 } else {
8278 if (ctrl_info->max_outstanding_requests >
8279 PQI_MAX_OUTSTANDING_REQUESTS)
583891c9 8280 ctrl_info->max_outstanding_requests =
d727a776
KB		 8281 PQI_MAX_OUTSTANDING_REQUESTS;
8282 }
6c223761
KB		 8283
8284 pqi_calculate_io_resources(ctrl_info);
8285
8286 rc = pqi_alloc_error_buffer(ctrl_info);
8287 if (rc) {
8288 dev_err(&ctrl_info->pci_dev->dev,
8289 "failed to allocate PQI error buffer\n");
8290 return rc;
8291 }
8292
8293 /*
8294 * If the function we are about to call succeeds, the
8295 * controller will transition from legacy SIS mode
8296 * into PQI mode.
8297 */
8298 rc = sis_init_base_struct_addr(ctrl_info);
8299 if (rc) {
8300 dev_err(&ctrl_info->pci_dev->dev,
8301 "error initializing PQI mode\n");
8302 return rc;
8303 }
8304
8305 /* Wait for the controller to complete the SIS -> PQI transition. */
8306 rc = pqi_wait_for_pqi_mode_ready(ctrl_info);
8307 if (rc) {
8308 dev_err(&ctrl_info->pci_dev->dev,
8309 "transition to PQI mode failed\n");
8310 return rc;
8311 }
8312
8313 /* From here on, we are running in PQI mode. */
8314 ctrl_info->pqi_mode_enabled = true;
ff6abb73 8315 pqi_save_ctrl_mode(ctrl_info, PQI_MODE);
6c223761
KB		 8316
8317 rc = pqi_alloc_admin_queues(ctrl_info);
8318 if (rc) {
8319 dev_err(&ctrl_info->pci_dev->dev,
d87d5474 8320 "failed to allocate admin queues\n");
6c223761
KB		 8321 return rc;
8322 }
8323
8324 rc = pqi_create_admin_queues(ctrl_info);
8325 if (rc) {
8326 dev_err(&ctrl_info->pci_dev->dev,
8327 "error creating admin queues\n");
8328 return rc;
8329 }
8330
8331 rc = pqi_report_device_capability(ctrl_info);
8332 if (rc) {
8333 dev_err(&ctrl_info->pci_dev->dev,
8334 "obtaining device capability failed\n");
8335 return rc;
8336 }
8337
8338 rc = pqi_validate_device_capability(ctrl_info);
8339 if (rc)
8340 return rc;
8341
8342 pqi_calculate_queue_resources(ctrl_info);
8343
8344 rc = pqi_enable_msix_interrupts(ctrl_info);
8345 if (rc)
8346 return rc;
8347
8348 if (ctrl_info->num_msix_vectors_enabled < ctrl_info->num_queue_groups) {
8349 ctrl_info->max_msix_vectors =
8350 ctrl_info->num_msix_vectors_enabled;
8351 pqi_calculate_queue_resources(ctrl_info);
8352 }
8353
8354 rc = pqi_alloc_io_resources(ctrl_info);
8355 if (rc)
8356 return rc;
8357
8358 rc = pqi_alloc_operational_queues(ctrl_info);
d87d5474
KB		 8359 if (rc) {
8360 dev_err(&ctrl_info->pci_dev->dev,
8361 "failed to allocate operational queues\n");
6c223761 8362 return rc;
d87d5474 8363 }
6c223761
KB		 8364
8365 pqi_init_operational_queues(ctrl_info);
8366
0777a3fb 8367 rc = pqi_create_queues(ctrl_info);
6c223761
KB		 8368 if (rc)
8369 return rc;
8370
0777a3fb 8371 rc = pqi_request_irqs(ctrl_info);
6c223761
KB		 8372 if (rc)
8373 return rc;
8374
061ef06a
KB		 8375 pqi_change_irq_mode(ctrl_info, IRQ_MODE_MSIX);
8376
8377 ctrl_info->controller_online = true;
b212c251
KB		 8378
8379 rc = pqi_process_config_table(ctrl_info);
8380 if (rc)
8381 return rc;
8382
061ef06a 8383 pqi_start_heartbeat_timer(ctrl_info);
6c223761 8384
f6cc2a77
KB		 8385 if (ctrl_info->enable_r5_writes || ctrl_info->enable_r6_writes) {
8386 rc = pqi_get_advanced_raid_bypass_config(ctrl_info);
8387 if (rc) { /* Supported features not returned correctly. */
8388 dev_err(&ctrl_info->pci_dev->dev,
8389 "error obtaining advanced RAID bypass configuration\n");
8390 return rc;
8391 }
8392 ctrl_info->ciss_report_log_flags |=
8393 CISS_REPORT_LOG_FLAG_DRIVE_TYPE_MIX;
8394 }
8395
6a50d6ad 8396 rc = pqi_enable_events(ctrl_info);
6c223761
KB		 8397 if (rc) {
8398 dev_err(&ctrl_info->pci_dev->dev,
6a50d6ad 8399 "error enabling events\n");
6c223761
KB		 8400 return rc;
8401 }
8402
6c223761
KB		 8403 /* Register with the SCSI subsystem. */
8404 rc = pqi_register_scsi(ctrl_info);
8405 if (rc)
8406 return rc;
8407
6d90615f
MB		 8408 rc = pqi_get_ctrl_product_details(ctrl_info);
8409 if (rc) {
8410 dev_err(&ctrl_info->pci_dev->dev,
8411 "error obtaining product details\n");
8412 return rc;
8413 }
8414
8415 rc = pqi_get_ctrl_serial_number(ctrl_info);
6c223761
KB		 8416 if (rc) {
8417 dev_err(&ctrl_info->pci_dev->dev,
6d90615f 8418 "error obtaining ctrl serial number\n");
6c223761
KB		 8419 return rc;
8420 }
8421
171c2865
DC		 8422 rc = pqi_set_diag_rescan(ctrl_info);
8423 if (rc) {
8424 dev_err(&ctrl_info->pci_dev->dev,
8425 "error enabling multi-lun rescan\n");
8426 return rc;
8427 }
8428
6c223761
KB		 8429 rc = pqi_write_driver_version_to_host_wellness(ctrl_info);
8430 if (rc) {
8431 dev_err(&ctrl_info->pci_dev->dev,
8432 "error updating host wellness\n");
8433 return rc;
8434 }
8435
8436 pqi_schedule_update_time_worker(ctrl_info);
8437
8438 pqi_scan_scsi_devices(ctrl_info);
8439
8440 return 0;
8441}
8442
061ef06a
KB		 8443static void pqi_reinit_queues(struct pqi_ctrl_info *ctrl_info)
8444{
8445 unsigned int i;
8446 struct pqi_admin_queues *admin_queues;
8447 struct pqi_event_queue *event_queue;
8448
8449 admin_queues = &ctrl_info->admin_queues;
8450 admin_queues->iq_pi_copy = 0;
8451 admin_queues->oq_ci_copy = 0;
dac12fbc 8452 writel(0, admin_queues->oq_pi);
061ef06a
KB		 8453
8454 for (i = 0; i < ctrl_info->num_queue_groups; i++) {
8455 ctrl_info->queue_groups[i].iq_pi_copy[RAID_PATH] = 0;
8456 ctrl_info->queue_groups[i].iq_pi_copy[AIO_PATH] = 0;
8457 ctrl_info->queue_groups[i].oq_ci_copy = 0;
8458
dac12fbc
KB		 8459 writel(0, ctrl_info->queue_groups[i].iq_ci[RAID_PATH]);
8460 writel(0, ctrl_info->queue_groups[i].iq_ci[AIO_PATH]);
8461 writel(0, ctrl_info->queue_groups[i].oq_pi);
061ef06a
KB		 8462 }
8463
8464 event_queue = &ctrl_info->event_queue;
dac12fbc 8465 writel(0, event_queue->oq_pi);
061ef06a
KB		 8466 event_queue->oq_ci_copy = 0;
8467}
8468
8469static int pqi_ctrl_init_resume(struct pqi_ctrl_info *ctrl_info)
8470{
8471 int rc;
8472
8473 rc = pqi_force_sis_mode(ctrl_info);
8474 if (rc)
8475 return rc;
8476
8477 /*
8478 * Wait until the controller is ready to start accepting SIS
8479 * commands.
8480 */
8481 rc = sis_wait_for_ctrl_ready_resume(ctrl_info);
8482 if (rc)
8483 return rc;
8484
4fd22c13
MR		 8485 /*
8486 * Get the controller properties. This allows us to determine
8487 * whether or not it supports PQI mode.
8488 */
8489 rc = sis_get_ctrl_properties(ctrl_info);
8490 if (rc) {
8491 dev_err(&ctrl_info->pci_dev->dev,
8492 "error obtaining controller properties\n");
8493 return rc;
8494 }
8495
8496 rc = sis_get_pqi_capabilities(ctrl_info);
8497 if (rc) {
8498 dev_err(&ctrl_info->pci_dev->dev,
8499 "error obtaining controller capabilities\n");
8500 return rc;
8501 }
8502
061ef06a
KB		 8503 /*
8504 * If the function we are about to call succeeds, the
8505 * controller will transition from legacy SIS mode
8506 * into PQI mode.
8507 */
8508 rc = sis_init_base_struct_addr(ctrl_info);
8509 if (rc) {
8510 dev_err(&ctrl_info->pci_dev->dev,
8511 "error initializing PQI mode\n");
8512 return rc;
8513 }
8514
8515 /* Wait for the controller to complete the SIS -> PQI transition. */
8516 rc = pqi_wait_for_pqi_mode_ready(ctrl_info);
8517 if (rc) {
8518 dev_err(&ctrl_info->pci_dev->dev,
8519 "transition to PQI mode failed\n");
8520 return rc;
8521 }
8522
8523 /* From here on, we are running in PQI mode. */
8524 ctrl_info->pqi_mode_enabled = true;
8525 pqi_save_ctrl_mode(ctrl_info, PQI_MODE);
8526
8527 pqi_reinit_queues(ctrl_info);
8528
8529 rc = pqi_create_admin_queues(ctrl_info);
8530 if (rc) {
8531 dev_err(&ctrl_info->pci_dev->dev,
8532 "error creating admin queues\n");
8533 return rc;
8534 }
8535
8536 rc = pqi_create_queues(ctrl_info);
8537 if (rc)
8538 return rc;
8539
8540 pqi_change_irq_mode(ctrl_info, IRQ_MODE_MSIX);
8541
8542 ctrl_info->controller_online = true;
061ef06a
KB		 8543 pqi_ctrl_unblock_requests(ctrl_info);
8544
4ccc354b
KB		 8545 pqi_ctrl_reset_config(ctrl_info);
8546
4fd22c13
MR		 8547 rc = pqi_process_config_table(ctrl_info);
8548 if (rc)
8549 return rc;
8550
8551 pqi_start_heartbeat_timer(ctrl_info);
8552
f6cc2a77
KB		 8553 if (ctrl_info->enable_r5_writes || ctrl_info->enable_r6_writes) {
8554 rc = pqi_get_advanced_raid_bypass_config(ctrl_info);
8555 if (rc) {
8556 dev_err(&ctrl_info->pci_dev->dev,
8557 "error obtaining advanced RAID bypass configuration\n");
8558 return rc;
8559 }
8560 ctrl_info->ciss_report_log_flags |=
8561 CISS_REPORT_LOG_FLAG_DRIVE_TYPE_MIX;
8562 }
8563
061ef06a
KB		 8564 rc = pqi_enable_events(ctrl_info);
8565 if (rc) {
8566 dev_err(&ctrl_info->pci_dev->dev,
d87d5474 8567 "error enabling events\n");
061ef06a
KB		 8568 return rc;
8569 }
8570
6d90615f 8571 rc = pqi_get_ctrl_product_details(ctrl_info);
4fd22c13
MR		 8572 if (rc) {
8573 dev_err(&ctrl_info->pci_dev->dev,
694c5d5b 8574 "error obtaining product details\n");
4fd22c13
MR		 8575 return rc;
8576 }
8577
171c2865
DC		 8578 rc = pqi_set_diag_rescan(ctrl_info);
8579 if (rc) {
8580 dev_err(&ctrl_info->pci_dev->dev,
8581 "error enabling multi-lun rescan\n");
8582 return rc;
8583 }
8584
061ef06a
KB		 8585 rc = pqi_write_driver_version_to_host_wellness(ctrl_info);
8586 if (rc) {
8587 dev_err(&ctrl_info->pci_dev->dev,
8588 "error updating host wellness\n");
8589 return rc;
8590 }
8591
2790cd4d
KB		 8592 if (pqi_ofa_in_progress(ctrl_info))
8593 pqi_ctrl_unblock_scan(ctrl_info);
061ef06a
KB		 8594
8595 pqi_scan_scsi_devices(ctrl_info);
8596
8597 return 0;
8598}
8599
583891c9 8600static inline int pqi_set_pcie_completion_timeout(struct pci_dev *pci_dev, u16 timeout)
a81ed5f3 8601{
d20df83b
BOS		 8602 int rc;
8603
8604 rc = pcie_capability_clear_and_set_word(pci_dev, PCI_EXP_DEVCTL2,
a81ed5f3 8605 PCI_EXP_DEVCTL2_COMP_TIMEOUT, timeout);
d20df83b
BOS		 8606
8607 return pcibios_err_to_errno(rc);
a81ed5f3
KB		 8608}
8609
6c223761
KB		 8610static int pqi_pci_init(struct pqi_ctrl_info *ctrl_info)
8611{
8612 int rc;
8613 u64 mask;
8614
8615 rc = pci_enable_device(ctrl_info->pci_dev);
8616 if (rc) {
8617 dev_err(&ctrl_info->pci_dev->dev,
8618 "failed to enable PCI device\n");
8619 return rc;
8620 }
8621
8622 if (sizeof(dma_addr_t) > 4)
8623 mask = DMA_BIT_MASK(64);
8624 else
8625 mask = DMA_BIT_MASK(32);
8626
1d94f06e 8627 rc = dma_set_mask_and_coherent(&ctrl_info->pci_dev->dev, mask);
6c223761
KB		 8628 if (rc) {
8629 dev_err(&ctrl_info->pci_dev->dev, "failed to set DMA mask\n");
8630 goto disable_device;
8631 }
8632
8633 rc = pci_request_regions(ctrl_info->pci_dev, DRIVER_NAME_SHORT);
8634 if (rc) {
8635 dev_err(&ctrl_info->pci_dev->dev,
8636 "failed to obtain PCI resources\n");
8637 goto disable_device;
8638 }
8639
4bdc0d67 8640 ctrl_info->iomem_base = ioremap(pci_resource_start(
6c223761 8641 ctrl_info->pci_dev, 0),
3e7e55aa 8642 pci_resource_len(ctrl_info->pci_dev, 0));
6c223761
KB		 8643 if (!ctrl_info->iomem_base) {
8644 dev_err(&ctrl_info->pci_dev->dev,
8645 "failed to map memory for controller registers\n");
8646 rc = -ENOMEM;
8647 goto release_regions;
8648 }
8649
a81ed5f3
KB		 8650#define PCI_EXP_COMP_TIMEOUT_65_TO_210_MS 0x6
8651
8652 /* Increase the PCIe completion timeout. */
8653 rc = pqi_set_pcie_completion_timeout(ctrl_info->pci_dev,
8654 PCI_EXP_COMP_TIMEOUT_65_TO_210_MS);
8655 if (rc) {
8656 dev_err(&ctrl_info->pci_dev->dev,
8657 "failed to set PCIe completion timeout\n");
8658 goto release_regions;
8659 }
8660
6c223761
KB		 8661 /* Enable bus mastering. */
8662 pci_set_master(ctrl_info->pci_dev);
8663
cbe0c7b1
KB		 8664 ctrl_info->registers = ctrl_info->iomem_base;
8665 ctrl_info->pqi_registers = &ctrl_info->registers->pqi_registers;
8666
6c223761
KB		 8667 pci_set_drvdata(ctrl_info->pci_dev, ctrl_info);
8668
8669 return 0;
8670
8671release_regions:
8672 pci_release_regions(ctrl_info->pci_dev);
8673disable_device:
8674 pci_disable_device(ctrl_info->pci_dev);
8675
8676 return rc;
8677}
8678
8679static void pqi_cleanup_pci_init(struct pqi_ctrl_info *ctrl_info)
8680{
8681 iounmap(ctrl_info->iomem_base);
8682 pci_release_regions(ctrl_info->pci_dev);
cbe0c7b1
KB		 8683 if (pci_is_enabled(ctrl_info->pci_dev))
8684 pci_disable_device(ctrl_info->pci_dev);
6c223761
KB		 8685 pci_set_drvdata(ctrl_info->pci_dev, NULL);
8686}
8687
8688static struct pqi_ctrl_info *pqi_alloc_ctrl_info(int numa_node)
8689{
8690 struct pqi_ctrl_info *ctrl_info;
8691
8692 ctrl_info = kzalloc_node(sizeof(struct pqi_ctrl_info),
8693 GFP_KERNEL, numa_node);
8694 if (!ctrl_info)
8695 return NULL;
8696
8697 mutex_init(&ctrl_info->scan_mutex);
7561a7e4 8698 mutex_init(&ctrl_info->lun_reset_mutex);
4fd22c13 8699 mutex_init(&ctrl_info->ofa_mutex);
6c223761
KB		 8700
8701 INIT_LIST_HEAD(&ctrl_info->scsi_device_list);
8702 spin_lock_init(&ctrl_info->scsi_device_list_lock);
8703
8704 INIT_WORK(&ctrl_info->event_work, pqi_event_worker);
8705 atomic_set(&ctrl_info->num_interrupts, 0);
8706
8707 INIT_DELAYED_WORK(&ctrl_info->rescan_work, pqi_rescan_worker);
8708 INIT_DELAYED_WORK(&ctrl_info->update_time_work, pqi_update_time_worker);
8709
74a0f573 8710 timer_setup(&ctrl_info->heartbeat_timer, pqi_heartbeat_timer_handler, 0);
5f310425 8711 INIT_WORK(&ctrl_info->ctrl_offline_work, pqi_ctrl_offline_worker);
98f87667 8712
2790cd4d
KB		 8713 INIT_WORK(&ctrl_info->ofa_memory_alloc_work, pqi_ofa_memory_alloc_worker);
8714 INIT_WORK(&ctrl_info->ofa_quiesce_work, pqi_ofa_quiesce_worker);
8715
6c223761
KB		 8716 sema_init(&ctrl_info->sync_request_sem,
8717 PQI_RESERVED_IO_SLOTS_SYNCHRONOUS_REQUESTS);
7561a7e4 8718 init_waitqueue_head(&ctrl_info->block_requests_wait);
6c223761
KB		 8719
8720 ctrl_info->ctrl_id = atomic_inc_return(&pqi_controller_count) - 1;
061ef06a 8721 ctrl_info->irq_mode = IRQ_MODE_NONE;
6c223761
KB		 8722 ctrl_info->max_msix_vectors = PQI_MAX_MSIX_VECTORS;
8723
f6cc2a77
KB		 8724 ctrl_info->ciss_report_log_flags = CISS_REPORT_LOG_FLAG_UNIQUE_LUN_ID;
8725 ctrl_info->max_transfer_encrypted_sas_sata =
8726 PQI_DEFAULT_MAX_TRANSFER_ENCRYPTED_SAS_SATA;
8727 ctrl_info->max_transfer_encrypted_nvme =
8728 PQI_DEFAULT_MAX_TRANSFER_ENCRYPTED_NVME;
8729 ctrl_info->max_write_raid_5_6 = PQI_DEFAULT_MAX_WRITE_RAID_5_6;
8730 ctrl_info->max_write_raid_1_10_2drive = ~0;
8731 ctrl_info->max_write_raid_1_10_3drive = ~0;
cf15c3e7 8732 ctrl_info->disable_managed_interrupts = pqi_disable_managed_interrupts;
f6cc2a77 8733
6c223761
KB		 8734 return ctrl_info;
8735}
8736
8737static inline void pqi_free_ctrl_info(struct pqi_ctrl_info *ctrl_info)
8738{
8739 kfree(ctrl_info);
8740}
8741
8742static void pqi_free_interrupts(struct pqi_ctrl_info *ctrl_info)
8743{
98bf061b
KB		 8744 pqi_free_irqs(ctrl_info);
8745 pqi_disable_msix_interrupts(ctrl_info);
6c223761
KB		 8746}
8747
8748static void pqi_free_ctrl_resources(struct pqi_ctrl_info *ctrl_info)
8749{
6c223761
KB		 8750 pqi_free_interrupts(ctrl_info);
8751 if (ctrl_info->queue_memory_base)
8752 dma_free_coherent(&ctrl_info->pci_dev->dev,
8753 ctrl_info->queue_memory_length,
8754 ctrl_info->queue_memory_base,
8755 ctrl_info->queue_memory_base_dma_handle);
8756 if (ctrl_info->admin_queue_memory_base)
8757 dma_free_coherent(&ctrl_info->pci_dev->dev,
8758 ctrl_info->admin_queue_memory_length,
8759 ctrl_info->admin_queue_memory_base,
8760 ctrl_info->admin_queue_memory_base_dma_handle);
8761 pqi_free_all_io_requests(ctrl_info);
8762 if (ctrl_info->error_buffer)
8763 dma_free_coherent(&ctrl_info->pci_dev->dev,
8764 ctrl_info->error_buffer_length,
8765 ctrl_info->error_buffer,
8766 ctrl_info->error_buffer_dma_handle);
8767 if (ctrl_info->iomem_base)
8768 pqi_cleanup_pci_init(ctrl_info);
8769 pqi_free_ctrl_info(ctrl_info);
8770}
8771
8772static void pqi_remove_ctrl(struct pqi_ctrl_info *ctrl_info)
8773{
331f7e99
SB		 8774 ctrl_info->controller_online = false;
8775 pqi_stop_heartbeat_timer(ctrl_info);
8776 pqi_ctrl_block_requests(ctrl_info);
061ef06a
KB		 8777 pqi_cancel_rescan_worker(ctrl_info);
8778 pqi_cancel_update_time_worker(ctrl_info);
331f7e99
SB		 8779 if (ctrl_info->ctrl_removal_state == PQI_CTRL_SURPRISE_REMOVAL) {
8780 pqi_fail_all_outstanding_requests(ctrl_info);
8781 ctrl_info->pqi_mode_enabled = false;
8782 }
e57a1f9b 8783 pqi_unregister_scsi(ctrl_info);
162d7753
KB		 8784 if (ctrl_info->pqi_mode_enabled)
8785 pqi_revert_to_sis_mode(ctrl_info);
6c223761
KB		 8786 pqi_free_ctrl_resources(ctrl_info);
8787}
8788
4fd22c13
MR		 8789static void pqi_ofa_ctrl_quiesce(struct pqi_ctrl_info *ctrl_info)
8790{
2790cd4d
KB		 8791 pqi_ctrl_block_scan(ctrl_info);
8792 pqi_scsi_block_requests(ctrl_info);
8793 pqi_ctrl_block_device_reset(ctrl_info);
4fd22c13
MR		 8794 pqi_ctrl_block_requests(ctrl_info);
8795 pqi_ctrl_wait_until_quiesced(ctrl_info);
4fd22c13 8796 pqi_stop_heartbeat_timer(ctrl_info);
4fd22c13
MR		 8797}
8798
8799static void pqi_ofa_ctrl_unquiesce(struct pqi_ctrl_info *ctrl_info)
8800{
4fd22c13 8801 pqi_start_heartbeat_timer(ctrl_info);
2790cd4d
KB		 8802 pqi_ctrl_unblock_requests(ctrl_info);
8803 pqi_ctrl_unblock_device_reset(ctrl_info);
8804 pqi_scsi_unblock_requests(ctrl_info);
8805 pqi_ctrl_unblock_scan(ctrl_info);
4fd22c13
MR		 8806}
8807
2790cd4d 8808static int pqi_ofa_alloc_mem(struct pqi_ctrl_info *ctrl_info, u32 total_size, u32 chunk_size)
4fd22c13 8809{
4fd22c13 8810 int i;
2790cd4d 8811 u32 sg_count;
4fd22c13
MR		 8812 struct device *dev;
8813 struct pqi_ofa_memory *ofap;
2790cd4d
KB		 8814 struct pqi_sg_descriptor *mem_descriptor;
8815 dma_addr_t dma_handle;
4fd22c13
MR		 8816
8817 ofap = ctrl_info->pqi_ofa_mem_virt_addr;
8818
2790cd4d
KB		 8819 sg_count = DIV_ROUND_UP(total_size, chunk_size);
8820 if (sg_count == 0 || sg_count > PQI_OFA_MAX_SG_DESCRIPTORS)
4fd22c13
MR		 8821 goto out;
8822
2790cd4d 8823 ctrl_info->pqi_ofa_chunk_virt_addr = kmalloc_array(sg_count, sizeof(void *), GFP_KERNEL);
4fd22c13
MR		 8824 if (!ctrl_info->pqi_ofa_chunk_virt_addr)
8825 goto out;
8826
2790cd4d 8827 dev = &ctrl_info->pci_dev->dev;
4fd22c13 8828
2790cd4d 8829 for (i = 0; i < sg_count; i++) {
4fd22c13 8830 ctrl_info->pqi_ofa_chunk_virt_addr[i] =
2790cd4d 8831 dma_alloc_coherent(dev, chunk_size, &dma_handle, GFP_KERNEL);
4fd22c13 8832 if (!ctrl_info->pqi_ofa_chunk_virt_addr[i])
2790cd4d 8833 goto out_free_chunks;
4fd22c13 8834 mem_descriptor = &ofap->sg_descriptor[i];
583891c9
KB		 8835 put_unaligned_le64((u64)dma_handle, &mem_descriptor->address);
8836 put_unaligned_le32(chunk_size, &mem_descriptor->length);
4fd22c13
MR		 8837 }
8838
4fd22c13
MR		 8839 put_unaligned_le32(CISS_SG_LAST, &mem_descriptor->flags);
8840 put_unaligned_le16(sg_count, &ofap->num_memory_descriptors);
2790cd4d 8841 put_unaligned_le32(sg_count * chunk_size, &ofap->bytes_allocated);
4fd22c13
MR		 8842
8843 return 0;
8844
8845out_free_chunks:
8846 while (--i >= 0) {
8847 mem_descriptor = &ofap->sg_descriptor[i];
8848 dma_free_coherent(dev, chunk_size,
2790cd4d
KB		 8849 ctrl_info->pqi_ofa_chunk_virt_addr[i],
8850 get_unaligned_le64(&mem_descriptor->address));
4fd22c13
MR		 8851 }
8852 kfree(ctrl_info->pqi_ofa_chunk_virt_addr);
8853
8854out:
4fd22c13
MR		 8855 return -ENOMEM;
8856}
8857
8858static int pqi_ofa_alloc_host_buffer(struct pqi_ctrl_info *ctrl_info)
8859{
8860 u32 total_size;
2790cd4d 8861 u32 chunk_size;
4fd22c13 8862 u32 min_chunk_size;
4fd22c13 8863
2790cd4d
KB		 8864 if (ctrl_info->ofa_bytes_requested == 0)
8865 return 0;
4fd22c13 8866
2790cd4d
KB		 8867 total_size = PAGE_ALIGN(ctrl_info->ofa_bytes_requested);
8868 min_chunk_size = DIV_ROUND_UP(total_size, PQI_OFA_MAX_SG_DESCRIPTORS);
8869 min_chunk_size = PAGE_ALIGN(min_chunk_size);
4fd22c13 8870
2790cd4d
KB		 8871 for (chunk_size = total_size; chunk_size >= min_chunk_size;) {
8872 if (pqi_ofa_alloc_mem(ctrl_info, total_size, chunk_size) == 0)
4fd22c13 8873 return 0;
2790cd4d
KB		 8874 chunk_size /= 2;
8875 chunk_size = PAGE_ALIGN(chunk_size);
8876 }
4fd22c13
MR		 8877
8878 return -ENOMEM;
8879}
8880
2790cd4d 8881static void pqi_ofa_setup_host_buffer(struct pqi_ctrl_info *ctrl_info)
4fd22c13 8882{
4fd22c13 8883 struct device *dev;
2790cd4d 8884 struct pqi_ofa_memory *ofap;
4fd22c13
MR		 8885
8886 dev = &ctrl_info->pci_dev->dev;
4fd22c13 8887
2790cd4d
KB		 8888 ofap = dma_alloc_coherent(dev, sizeof(*ofap),
8889 &ctrl_info->pqi_ofa_mem_dma_handle, GFP_KERNEL);
8890 if (!ofap)
4fd22c13
MR		 8891 return;
8892
2790cd4d 8893 ctrl_info->pqi_ofa_mem_virt_addr = ofap;
4fd22c13
MR		 8894
8895 if (pqi_ofa_alloc_host_buffer(ctrl_info) < 0) {
2790cd4d
KB		 8896 dev_err(dev,
8897 "failed to allocate host buffer for Online Firmware Activation\n");
8898 dma_free_coherent(dev, sizeof(*ofap), ofap, ctrl_info->pqi_ofa_mem_dma_handle);
8899 ctrl_info->pqi_ofa_mem_virt_addr = NULL;
8900 return;
4fd22c13 8901 }
694c5d5b 8902
2790cd4d
KB		 8903 put_unaligned_le16(PQI_OFA_VERSION, &ofap->version);
8904 memcpy(&ofap->signature, PQI_OFA_SIGNATURE, sizeof(ofap->signature));
4fd22c13
MR		 8905}
8906
8907static void pqi_ofa_free_host_buffer(struct pqi_ctrl_info *ctrl_info)
8908{
2790cd4d
KB		 8909 unsigned int i;
8910 struct device *dev;
4fd22c13 8911 struct pqi_ofa_memory *ofap;
2790cd4d
KB		 8912 struct pqi_sg_descriptor *mem_descriptor;
8913 unsigned int num_memory_descriptors;
4fd22c13
MR		 8914
8915 ofap = ctrl_info->pqi_ofa_mem_virt_addr;
4fd22c13
MR		 8916 if (!ofap)
8917 return;
8918
2790cd4d
KB		 8919 dev = &ctrl_info->pci_dev->dev;
8920
8921 if (get_unaligned_le32(&ofap->bytes_allocated) == 0)
4fd22c13
MR		 8922 goto out;
8923
8924 mem_descriptor = ofap->sg_descriptor;
2790cd4d
KB		 8925 num_memory_descriptors =
8926 get_unaligned_le16(&ofap->num_memory_descriptors);
4fd22c13 8927
2790cd4d
KB		 8928 for (i = 0; i < num_memory_descriptors; i++) {
8929 dma_free_coherent(dev,
4fd22c13
MR		 8930 get_unaligned_le32(&mem_descriptor[i].length),
8931 ctrl_info->pqi_ofa_chunk_virt_addr[i],
8932 get_unaligned_le64(&mem_descriptor[i].address));
8933 }
8934 kfree(ctrl_info->pqi_ofa_chunk_virt_addr);
8935
8936out:
2790cd4d
KB		 8937 dma_free_coherent(dev, sizeof(*ofap), ofap,
8938 ctrl_info->pqi_ofa_mem_dma_handle);
4fd22c13
MR		 8939 ctrl_info->pqi_ofa_mem_virt_addr = NULL;
8940}
8941
8942static int pqi_ofa_host_memory_update(struct pqi_ctrl_info *ctrl_info)
8943{
2790cd4d 8944 u32 buffer_length;
4fd22c13 8945 struct pqi_vendor_general_request request;
4fd22c13
MR		 8946 struct pqi_ofa_memory *ofap;
8947
8948 memset(&request, 0, sizeof(request));
8949
4fd22c13
MR		 8950 request.header.iu_type = PQI_REQUEST_IU_VENDOR_GENERAL;
8951 put_unaligned_le16(sizeof(request) - PQI_REQUEST_HEADER_LENGTH,
8952 &request.header.iu_length);
8953 put_unaligned_le16(PQI_VENDOR_GENERAL_HOST_MEMORY_UPDATE,
8954 &request.function_code);
8955
2790cd4d
KB		 8956 ofap = ctrl_info->pqi_ofa_mem_virt_addr;
8957
4fd22c13 8958 if (ofap) {
2790cd4d 8959 buffer_length = offsetof(struct pqi_ofa_memory, sg_descriptor) +
4fd22c13
MR		 8960 get_unaligned_le16(&ofap->num_memory_descriptors) *
8961 sizeof(struct pqi_sg_descriptor);
8962
8963 put_unaligned_le64((u64)ctrl_info->pqi_ofa_mem_dma_handle,
8964 &request.data.ofa_memory_allocation.buffer_address);
2790cd4d 8965 put_unaligned_le32(buffer_length,
4fd22c13 8966 &request.data.ofa_memory_allocation.buffer_length);
4fd22c13
MR		 8967 }
8968
ae0c189d 8969 return pqi_submit_raid_request_synchronous(ctrl_info, &request.header, 0, NULL);
4fd22c13
MR		 8970}
8971
2790cd4d 8972static int pqi_ofa_ctrl_restart(struct pqi_ctrl_info *ctrl_info, unsigned int delay_secs)
4fd22c13 8973{
2790cd4d
KB		 8974 ssleep(delay_secs);
8975
4fd22c13
MR		 8976 return pqi_ctrl_init_resume(ctrl_info);
8977}
8978
5f310425
KB		 8979static struct pqi_raid_error_info pqi_ctrl_offline_raid_error_info = {
8980 .data_out_result = PQI_DATA_IN_OUT_HARDWARE_ERROR,
8981 .status = SAM_STAT_CHECK_CONDITION,
8982};
8983
8984static void pqi_fail_all_outstanding_requests(struct pqi_ctrl_info *ctrl_info)
376fb880
KB		 8985{
8986 unsigned int i;
376fb880 8987 struct pqi_io_request *io_request;
376fb880 8988 struct scsi_cmnd *scmd;
4f3cefc3 8989 struct scsi_device *sdev;
376fb880 8990
5f310425
KB		 8991 for (i = 0; i < ctrl_info->max_io_slots; i++) {
8992 io_request = &ctrl_info->io_request_pool[i];
8993 if (atomic_read(&io_request->refcount) == 0)
8994 continue;
376fb880 8995
5f310425
KB		 8996 scmd = io_request->scmd;
8997 if (scmd) {
4f3cefc3
MR		 8998 sdev = scmd->device;
8999 if (!sdev || !scsi_device_online(sdev)) {
9000 pqi_free_io_request(io_request);
9001 continue;
9002 } else {
9003 set_host_byte(scmd, DID_NO_CONNECT);
9004 }
5f310425
KB		 9005 } else {
9006 io_request->status = -ENXIO;
9007 io_request->error_info =
9008 &pqi_ctrl_offline_raid_error_info;
376fb880 9009 }
5f310425
KB		 9010
9011 io_request->io_complete_callback(io_request,
9012 io_request->context);
376fb880
KB		 9013 }
9014}
9015
5f310425 9016static void pqi_take_ctrl_offline_deferred(struct pqi_ctrl_info *ctrl_info)
376fb880 9017{
5f310425
KB		 9018 pqi_perform_lockup_action();
9019 pqi_stop_heartbeat_timer(ctrl_info);
9020 pqi_free_interrupts(ctrl_info);
9021 pqi_cancel_rescan_worker(ctrl_info);
9022 pqi_cancel_update_time_worker(ctrl_info);
9023 pqi_ctrl_wait_until_quiesced(ctrl_info);
9024 pqi_fail_all_outstanding_requests(ctrl_info);
5f310425
KB		 9025 pqi_ctrl_unblock_requests(ctrl_info);
9026}
9027
9028static void pqi_ctrl_offline_worker(struct work_struct *work)
9029{
9030 struct pqi_ctrl_info *ctrl_info;
9031
9032 ctrl_info = container_of(work, struct pqi_ctrl_info, ctrl_offline_work);
9033 pqi_take_ctrl_offline_deferred(ctrl_info);
376fb880
KB		 9034}
9035
72b737fa
DS		 9036static char *pqi_ctrl_shutdown_reason_to_string(enum pqi_ctrl_shutdown_reason ctrl_shutdown_reason)
9037{
9038 char *string;
9039
9040 switch (ctrl_shutdown_reason) {
9041 case PQI_IQ_NOT_DRAINED_TIMEOUT:
9042 string = "inbound queue not drained timeout";
9043 break;
9044 case PQI_LUN_RESET_TIMEOUT:
9045 string = "LUN reset timeout";
9046 break;
9047 case PQI_IO_PENDING_POST_LUN_RESET_TIMEOUT:
9048 string = "I/O pending timeout after LUN reset";
9049 break;
9050 case PQI_NO_HEARTBEAT:
9051 string = "no controller heartbeat detected";
9052 break;
9053 case PQI_FIRMWARE_KERNEL_NOT_UP:
9054 string = "firmware kernel not ready";
9055 break;
9056 case PQI_OFA_RESPONSE_TIMEOUT:
9057 string = "OFA response timeout";
9058 break;
9059 case PQI_INVALID_REQ_ID:
9060 string = "invalid request ID";
9061 break;
9062 case PQI_UNMATCHED_REQ_ID:
9063 string = "unmatched request ID";
9064 break;
9065 case PQI_IO_PI_OUT_OF_RANGE:
9066 string = "I/O queue producer index out of range";
9067 break;
9068 case PQI_EVENT_PI_OUT_OF_RANGE:
9069 string = "event queue producer index out of range";
9070 break;
9071 case PQI_UNEXPECTED_IU_TYPE:
9072 string = "unexpected IU type";
9073 break;
9074 default:
9075 string = "unknown reason";
9076 break;
9077 }
9078
9079 return string;
9080}
9081
5d1f03e6
MB		 9082static void pqi_take_ctrl_offline(struct pqi_ctrl_info *ctrl_info,
9083 enum pqi_ctrl_shutdown_reason ctrl_shutdown_reason)
376fb880 9084{
5f310425
KB		 9085 if (!ctrl_info->controller_online)
9086 return;
9087
376fb880 9088 ctrl_info->controller_online = false;
5f310425
KB		 9089 ctrl_info->pqi_mode_enabled = false;
9090 pqi_ctrl_block_requests(ctrl_info);
5a259e32 9091 if (!pqi_disable_ctrl_shutdown)
5d1f03e6 9092 sis_shutdown_ctrl(ctrl_info, ctrl_shutdown_reason);
376fb880 9093 pci_disable_device(ctrl_info->pci_dev);
72b737fa
DS		 9094 dev_err(&ctrl_info->pci_dev->dev,
9095 "controller offline: reason code 0x%x (%s)\n",
9096 ctrl_shutdown_reason, pqi_ctrl_shutdown_reason_to_string(ctrl_shutdown_reason));
5f310425 9097 schedule_work(&ctrl_info->ctrl_offline_work);
376fb880
KB		 9098}
9099
d91d7820 9100static void pqi_print_ctrl_info(struct pci_dev *pci_dev,
6c223761
KB		 9101 const struct pci_device_id *id)
9102{
9103 char *ctrl_description;
9104
37b36847 9105 if (id->driver_data)
6c223761 9106 ctrl_description = (char *)id->driver_data;
37b36847 9107 else
6aa26b5a 9108 ctrl_description = "Microchip Smart Family Controller";
6c223761 9109
d91d7820 9110 dev_info(&pci_dev->dev, "%s found\n", ctrl_description);
6c223761
KB		 9111}
9112
d91d7820
KB		 9113static int pqi_pci_probe(struct pci_dev *pci_dev,
9114 const struct pci_device_id *id)
6c223761
KB		 9115{
9116 int rc;
c52efc92 9117 int node;
6c223761
KB		 9118 struct pqi_ctrl_info *ctrl_info;
9119
d91d7820 9120 pqi_print_ctrl_info(pci_dev, id);
6c223761
KB		 9121
9122 if (pqi_disable_device_id_wildcards &&
9123 id->subvendor == PCI_ANY_ID &&
9124 id->subdevice == PCI_ANY_ID) {
d91d7820 9125 dev_warn(&pci_dev->dev,
6c223761
KB		 9126 "controller not probed because device ID wildcards are disabled\n");
9127 return -ENODEV;
9128 }
9129
9130 if (id->subvendor == PCI_ANY_ID || id->subdevice == PCI_ANY_ID)
d91d7820 9131 dev_warn(&pci_dev->dev,
6c223761
KB		 9132 "controller device ID matched using wildcards\n");
9133
d91d7820 9134 node = dev_to_node(&pci_dev->dev);
62dc51fb 9135 if (node == NUMA_NO_NODE) {
c52efc92
MM		 9136 node = cpu_to_node(0);
9137 if (node == NUMA_NO_NODE)
9138 node = 0;
9139 set_dev_node(&pci_dev->dev, node);
62dc51fb 9140 }
6c223761
KB		 9141
9142 ctrl_info = pqi_alloc_ctrl_info(node);
9143 if (!ctrl_info) {
d91d7820 9144 dev_err(&pci_dev->dev,
6c223761
KB		 9145 "failed to allocate controller info block\n");
9146 return -ENOMEM;
9147 }
d2c7583f 9148 ctrl_info->numa_node = node;
6c223761 9149
d91d7820 9150 ctrl_info->pci_dev = pci_dev;
6c223761
KB		 9151
9152 rc = pqi_pci_init(ctrl_info);
9153 if (rc)
9154 goto error;
9155
9156 rc = pqi_ctrl_init(ctrl_info);
9157 if (rc)
9158 goto error;
9159
9160 return 0;
9161
9162error:
9163 pqi_remove_ctrl(ctrl_info);
9164
9165 return rc;
9166}
9167
d91d7820 9168static void pqi_pci_remove(struct pci_dev *pci_dev)
6c223761
KB		 9169{
9170 struct pqi_ctrl_info *ctrl_info;
331f7e99 9171 u16 vendor_id;
14063fb6 9172 int rc;
6c223761 9173
d91d7820 9174 ctrl_info = pci_get_drvdata(pci_dev);
6c223761
KB		 9175 if (!ctrl_info)
9176 return;
9177
331f7e99
SB		 9178 pci_read_config_word(ctrl_info->pci_dev, PCI_SUBSYSTEM_VENDOR_ID, &vendor_id);
9179 if (vendor_id == 0xffff)
9180 ctrl_info->ctrl_removal_state = PQI_CTRL_SURPRISE_REMOVAL;
9181 else
9182 ctrl_info->ctrl_removal_state = PQI_CTRL_GRACEFUL_REMOVAL;
9183
14063fb6
GW		 9184 if (ctrl_info->ctrl_removal_state == PQI_CTRL_GRACEFUL_REMOVAL) {
9185 rc = pqi_flush_cache(ctrl_info, RESTART);
9186 if (rc)
9187 dev_err(&pci_dev->dev,
9188 "unable to flush controller cache during remove\n");
9189 }
9190
6c223761
KB		 9191 pqi_remove_ctrl(ctrl_info);
9192}
9193
0530736e
KB		 9194static void pqi_crash_if_pending_command(struct pqi_ctrl_info *ctrl_info)
9195{
9196 unsigned int i;
9197 struct pqi_io_request *io_request;
9198 struct scsi_cmnd *scmd;
9199
9200 for (i = 0; i < ctrl_info->max_io_slots; i++) {
9201 io_request = &ctrl_info->io_request_pool[i];
9202 if (atomic_read(&io_request->refcount) == 0)
9203 continue;
9204 scmd = io_request->scmd;
9205 WARN_ON(scmd != NULL); /* IO command from SML */
9206 WARN_ON(scmd == NULL); /* Non-IO cmd or driver initiated*/
9207 }
9208}
9209
d91d7820 9210static void pqi_shutdown(struct pci_dev *pci_dev)
6c223761
KB		 9211{
9212 int rc;
9213 struct pqi_ctrl_info *ctrl_info;
70ba20be 9214 enum bmic_flush_cache_shutdown_event shutdown_event;
6c223761 9215
d91d7820 9216 ctrl_info = pci_get_drvdata(pci_dev);
0530736e
KB		 9217 if (!ctrl_info) {
9218 dev_err(&pci_dev->dev,
9219 "cache could not be flushed\n");
9220 return;
9221 }
9222
0530736e 9223 pqi_wait_until_ofa_finished(ctrl_info);
0530736e 9224
9fa82023 9225 pqi_scsi_block_requests(ctrl_info);
0530736e 9226 pqi_ctrl_block_device_reset(ctrl_info);
9fa82023
KB		 9227 pqi_ctrl_block_requests(ctrl_info);
9228 pqi_ctrl_wait_until_quiesced(ctrl_info);
6c223761 9229
70ba20be
SB		 9230 if (system_state == SYSTEM_RESTART)
9231 shutdown_event = RESTART;
9232 else
9233 shutdown_event = SHUTDOWN;
9234
6c223761
KB		 9235 /*
9236 * Write all data in the controller's battery-backed cache to
9237 * storage.
9238 */
70ba20be 9239 rc = pqi_flush_cache(ctrl_info, shutdown_event);
0530736e
KB		 9240 if (rc)
9241 dev_err(&pci_dev->dev,
276395d0 9242 "unable to flush controller cache during shutdown\n");
0530736e 9243
0530736e
KB		 9244 pqi_crash_if_pending_command(ctrl_info);
9245 pqi_reset(ctrl_info);
6c223761
KB		 9246}
9247
3c50976f
KB		 9248static void pqi_process_lockup_action_param(void)
9249{
9250 unsigned int i;
9251
9252 if (!pqi_lockup_action_param)
9253 return;
9254
9255 for (i = 0; i < ARRAY_SIZE(pqi_lockup_actions); i++) {
9256 if (strcmp(pqi_lockup_action_param,
9257 pqi_lockup_actions[i].name) == 0) {
9258 pqi_lockup_action = pqi_lockup_actions[i].action;
9259 return;
9260 }
9261 }
9262
9263 pr_warn("%s: invalid lockup action setting \"%s\" - supported settings: none, reboot, panic\n",
9264 DRIVER_NAME_SHORT, pqi_lockup_action_param);
9265}
9266
6d567dfe
KB		 9267#define PQI_CTRL_READY_TIMEOUT_PARAM_MIN_SECS 30
9268#define PQI_CTRL_READY_TIMEOUT_PARAM_MAX_SECS (30 * 60)
9269
9270static void pqi_process_ctrl_ready_timeout_param(void)
9271{
9272 if (pqi_ctrl_ready_timeout_secs == 0)
9273 return;
9274
9275 if (pqi_ctrl_ready_timeout_secs < PQI_CTRL_READY_TIMEOUT_PARAM_MIN_SECS) {
9276 pr_warn("%s: ctrl_ready_timeout parm of %u second(s) is less than minimum timeout of %d seconds - setting timeout to %d seconds\n",
9277 DRIVER_NAME_SHORT, pqi_ctrl_ready_timeout_secs, PQI_CTRL_READY_TIMEOUT_PARAM_MIN_SECS, PQI_CTRL_READY_TIMEOUT_PARAM_MIN_SECS);
9278 pqi_ctrl_ready_timeout_secs = PQI_CTRL_READY_TIMEOUT_PARAM_MIN_SECS;
9279 } else if (pqi_ctrl_ready_timeout_secs > PQI_CTRL_READY_TIMEOUT_PARAM_MAX_SECS) {
9280 pr_warn("%s: ctrl_ready_timeout parm of %u seconds is greater than maximum timeout of %d seconds - setting timeout to %d seconds\n",
9281 DRIVER_NAME_SHORT, pqi_ctrl_ready_timeout_secs, PQI_CTRL_READY_TIMEOUT_PARAM_MAX_SECS, PQI_CTRL_READY_TIMEOUT_PARAM_MAX_SECS);
9282 pqi_ctrl_ready_timeout_secs = PQI_CTRL_READY_TIMEOUT_PARAM_MAX_SECS;
9283 }
9284
9285 sis_ctrl_ready_timeout_secs = pqi_ctrl_ready_timeout_secs;
9286}
9287
3c50976f
KB		 9288static void pqi_process_module_params(void)
9289{
9290 pqi_process_lockup_action_param();
6d567dfe 9291 pqi_process_ctrl_ready_timeout_param();
3c50976f
KB		 9292}
9293
31b17c3a
DB		 9294#if defined(CONFIG_PM)
9295
b73357a1
SB		 9296static inline enum bmic_flush_cache_shutdown_event pqi_get_flush_cache_shutdown_event(struct pci_dev *pci_dev)
9297{
9298 if (pci_dev->subsystem_vendor == PCI_VENDOR_ID_ADAPTEC2 && pci_dev->subsystem_device == 0x1304)
9299 return RESTART;
c66e078a 9300
b73357a1
SB		 9301 return SUSPEND;
9302}
9303
c66e078a 9304static int pqi_suspend_or_freeze(struct device *dev, bool suspend)
061ef06a 9305{
c66e078a 9306 struct pci_dev *pci_dev;
061ef06a
KB		 9307 struct pqi_ctrl_info *ctrl_info;
9308
c66e078a 9309 pci_dev = to_pci_dev(dev);
061ef06a
KB		 9310 ctrl_info = pci_get_drvdata(pci_dev);
9311
4fd22c13 9312 pqi_wait_until_ofa_finished(ctrl_info);
9fa82023
KB		 9313
9314 pqi_ctrl_block_scan(ctrl_info);
9315 pqi_scsi_block_requests(ctrl_info);
9316 pqi_ctrl_block_device_reset(ctrl_info);
061ef06a
KB		 9317 pqi_ctrl_block_requests(ctrl_info);
9318 pqi_ctrl_wait_until_quiesced(ctrl_info);
061ef06a 9319
c66e078a
KB		 9320 if (suspend) {
9321 enum bmic_flush_cache_shutdown_event shutdown_event;
9fa82023 9322
c66e078a
KB		 9323 shutdown_event = pqi_get_flush_cache_shutdown_event(pci_dev);
9324 pqi_flush_cache(ctrl_info, shutdown_event);
9325 }
061ef06a 9326
c66e078a
KB		 9327 pqi_stop_heartbeat_timer(ctrl_info);
9328 pqi_crash_if_pending_command(ctrl_info);
9329 pqi_free_irqs(ctrl_info);
061ef06a
KB		 9330
9331 ctrl_info->controller_online = false;
9332 ctrl_info->pqi_mode_enabled = false;
9333
9334 return 0;
9335}
9336
c66e078a
KB		 9337static __maybe_unused int pqi_suspend(struct device *dev)
9338{
9339 return pqi_suspend_or_freeze(dev, true);
9340}
9341
9342static int pqi_resume_or_restore(struct device *dev)
061ef06a
KB		 9343{
9344 int rc;
c66e078a 9345 struct pci_dev *pci_dev;
061ef06a
KB		 9346 struct pqi_ctrl_info *ctrl_info;
9347
c66e078a 9348 pci_dev = to_pci_dev(dev);
061ef06a
KB		 9349 ctrl_info = pci_get_drvdata(pci_dev);
9350
c66e078a
KB		 9351 rc = pqi_request_irqs(ctrl_info);
9352 if (rc)
9353 return rc;
061ef06a 9354
43e97ef4
KB		 9355 pqi_ctrl_unblock_device_reset(ctrl_info);
9356 pqi_ctrl_unblock_requests(ctrl_info);
9357 pqi_scsi_unblock_requests(ctrl_info);
9358 pqi_ctrl_unblock_scan(ctrl_info);
9359
c66e078a
KB		 9360 ssleep(PQI_POST_RESET_DELAY_SECS);
9361
061ef06a
KB		 9362 return pqi_ctrl_init_resume(ctrl_info);
9363}
9364
c66e078a
KB		 9365static int pqi_freeze(struct device *dev)
9366{
9367 return pqi_suspend_or_freeze(dev, false);
9368}
9369
9370static int pqi_thaw(struct device *dev)
9371{
9372 int rc;
9373 struct pci_dev *pci_dev;
9374 struct pqi_ctrl_info *ctrl_info;
9375
9376 pci_dev = to_pci_dev(dev);
9377 ctrl_info = pci_get_drvdata(pci_dev);
9378
9379 rc = pqi_request_irqs(ctrl_info);
9380 if (rc)
9381 return rc;
9382
9383 ctrl_info->controller_online = true;
9384 ctrl_info->pqi_mode_enabled = true;
9385
9386 pqi_ctrl_unblock_device_reset(ctrl_info);
9387 pqi_ctrl_unblock_requests(ctrl_info);
9388 pqi_scsi_unblock_requests(ctrl_info);
9389 pqi_ctrl_unblock_scan(ctrl_info);
9390
9391 return 0;
9392}
9393
9394static int pqi_poweroff(struct device *dev)
9395{
9396 struct pci_dev *pci_dev;
9397 struct pqi_ctrl_info *ctrl_info;
9398 enum bmic_flush_cache_shutdown_event shutdown_event;
9399
9400 pci_dev = to_pci_dev(dev);
9401 ctrl_info = pci_get_drvdata(pci_dev);
9402
9403 shutdown_event = pqi_get_flush_cache_shutdown_event(pci_dev);
9404 pqi_flush_cache(ctrl_info, shutdown_event);
9405
9406 return 0;
9407}
9408
9409static const struct dev_pm_ops pqi_pm_ops = {
9410 .suspend = pqi_suspend,
9411 .resume = pqi_resume_or_restore,
9412 .freeze = pqi_freeze,
9413 .thaw = pqi_thaw,
9414 .poweroff = pqi_poweroff,
9415 .restore = pqi_resume_or_restore,
9416};
9417
31b17c3a
DB		 9418#endif /* CONFIG_PM */
9419
6c223761
KB		 9420/* Define the PCI IDs for the controllers that we support. */
9421static const struct pci_device_id pqi_pci_id_table[] = {
b0f9408b
KB		 9422 {
9423 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
9424 0x105b, 0x1211)
9425 },
9426 {
9427 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
9428 0x105b, 0x1321)
9429 },
7eddabff
KB		 9430 {
9431 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
9432 0x152d, 0x8a22)
9433 },
9434 {
9435 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
9436 0x152d, 0x8a23)
9437 },
9438 {
9439 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
9440 0x152d, 0x8a24)
9441 },
9442 {
9443 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
9444 0x152d, 0x8a36)
9445 },
9446 {
9447 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
9448 0x152d, 0x8a37)
9449 },
0595a0b4
AK		 9450 {
9451 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
9452 0x193d, 0x1104)
9453 },
9454 {
9455 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
9456 0x193d, 0x1105)
9457 },
9458 {
9459 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
9460 0x193d, 0x1106)
9461 },
9462 {
9463 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
9464 0x193d, 0x1107)
9465 },
d3af3f64
MR		 9466 {
9467 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
9468 0x193d, 0x1108)
9469 },
9470 {
9471 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
9472 0x193d, 0x1109)
9473 },
0b93cf2a
MM		 9474 {
9475 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
9476 0x193d, 0x110b)
9477 },
b0f9408b
KB		 9478 {
9479 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
9480 0x193d, 0x8460)
9481 },
9482 {
9483 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
9484 0x193d, 0x8461)
9485 },
84a77fef
MB		 9486 {
9487 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
9488 0x193d, 0xc460)
9489 },
9490 {
9491 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
9492 0x193d, 0xc461)
9493 },
b0f9408b
KB		 9494 {
9495 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
9496 0x193d, 0xf460)
9497 },
9498 {
9499 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
9500 0x193d, 0xf461)
9501 },
9502 {
9503 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
9504 0x1bd4, 0x0045)
9505 },
9506 {
9507 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
9508 0x1bd4, 0x0046)
9509 },
9510 {
9511 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
9512 0x1bd4, 0x0047)
9513 },
9514 {
9515 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
9516 0x1bd4, 0x0048)
9517 },
9f8d05fa
KB		 9518 {
9519 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
9520 0x1bd4, 0x004a)
9521 },
9522 {
9523 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
9524 0x1bd4, 0x004b)
9525 },
9526 {
9527 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
9528 0x1bd4, 0x004c)
9529 },
63a7956a
GW		 9530 {
9531 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
9532 0x1bd4, 0x004f)
9533 },
75fbeacc
KB		 9534 {
9535 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
9536 0x1bd4, 0x0051)
9537 },
9538 {
9539 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
9540 0x1bd4, 0x0052)
9541 },
9542 {
9543 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
9544 0x1bd4, 0x0053)
9545 },
9546 {
9547 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
9548 0x1bd4, 0x0054)
9549 },
c57ee4cc
DB		 9550 {
9551 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
9552 0x1bd4, 0x006b)
9553 },
9554 {
9555 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
9556 0x1bd4, 0x006c)
9557 },
9558 {
9559 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
9560 0x1bd4, 0x006d)
9561 },
9562 {
9563 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
9564 0x1bd4, 0x006f)
9565 },
9566 {
9567 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
9568 0x1bd4, 0x0070)
9569 },
9570 {
9571 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
9572 0x1bd4, 0x0071)
9573 },
9574 {
9575 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
9576 0x1bd4, 0x0072)
9577 },
0b93cf2a
MM		 9578 {
9579 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
9580 0x1bd4, 0x0086)
9581 },
9582 {
9583 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
9584 0x1bd4, 0x0087)
9585 },
9586 {
9587 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
9588 0x1bd4, 0x0088)
9589 },
9590 {
9591 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
9592 0x1bd4, 0x0089)
9593 },
c1b10475
AK		 9594 {
9595 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
9596 0x19e5, 0xd227)
9597 },
9598 {
9599 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
9600 0x19e5, 0xd228)
9601 },
9602 {
9603 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
9604 0x19e5, 0xd229)
9605 },
9606 {
9607 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
9608 0x19e5, 0xd22a)
9609 },
9610 {
9611 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
9612 0x19e5, 0xd22b)
9613 },
9614 {
9615 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
9616 0x19e5, 0xd22c)
9617 },
6c223761
KB		 9618 {
9619 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
9620 PCI_VENDOR_ID_ADAPTEC2, 0x0110)
9621 },
9622 {
9623 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
55790064 9624 PCI_VENDOR_ID_ADAPTEC2, 0x0608)
6c223761 9625 },
44e68c4a
MM		 9626 {
9627 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
9628 PCI_VENDOR_ID_ADAPTEC2, 0x0659)
9629 },
6c223761
KB		 9630 {
9631 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
7eddabff 9632 PCI_VENDOR_ID_ADAPTEC2, 0x0800)
6c223761
KB		 9633 },
9634 {
9635 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
7eddabff 9636 PCI_VENDOR_ID_ADAPTEC2, 0x0801)
6c223761
KB		 9637 },
9638 {
9639 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
7eddabff 9640 PCI_VENDOR_ID_ADAPTEC2, 0x0802)
6c223761
KB		 9641 },
9642 {
9643 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
7eddabff 9644 PCI_VENDOR_ID_ADAPTEC2, 0x0803)
6c223761
KB		 9645 },
9646 {
9647 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
7eddabff 9648 PCI_VENDOR_ID_ADAPTEC2, 0x0804)
6c223761
KB		 9649 },
9650 {
9651 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
7eddabff 9652 PCI_VENDOR_ID_ADAPTEC2, 0x0805)
6c223761
KB		 9653 },
9654 {
9655 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
7eddabff 9656 PCI_VENDOR_ID_ADAPTEC2, 0x0806)
6c223761 9657 },
55790064
KB		 9658 {
9659 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
9660 PCI_VENDOR_ID_ADAPTEC2, 0x0807)
9661 },
63a7956a
GW		 9662 {
9663 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
9664 PCI_VENDOR_ID_ADAPTEC2, 0x0808)
9665 },
9666 {
9667 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
9668 PCI_VENDOR_ID_ADAPTEC2, 0x0809)
9669 },
3af06083
MR		 9670 {
9671 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
9672 PCI_VENDOR_ID_ADAPTEC2, 0x080a)
9673 },
6c223761
KB		 9674 {
9675 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
7eddabff 9676 PCI_VENDOR_ID_ADAPTEC2, 0x0900)
6c223761
KB		 9677 },
9678 {
9679 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
7eddabff 9680 PCI_VENDOR_ID_ADAPTEC2, 0x0901)
6c223761
KB		 9681 },
9682 {
9683 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
7eddabff 9684 PCI_VENDOR_ID_ADAPTEC2, 0x0902)
6c223761
KB		 9685 },
9686 {
9687 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
7eddabff 9688 PCI_VENDOR_ID_ADAPTEC2, 0x0903)
6c223761
KB		 9689 },
9690 {
9691 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
7eddabff 9692 PCI_VENDOR_ID_ADAPTEC2, 0x0904)
6c223761
KB		 9693 },
9694 {
9695 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
7eddabff 9696 PCI_VENDOR_ID_ADAPTEC2, 0x0905)
6c223761
KB		 9697 },
9698 {
9699 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
7eddabff 9700 PCI_VENDOR_ID_ADAPTEC2, 0x0906)
6c223761
KB		 9701 },
9702 {
9703 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
7eddabff 9704 PCI_VENDOR_ID_ADAPTEC2, 0x0907)
6c223761
KB		 9705 },
9706 {
9707 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
7eddabff 9708 PCI_VENDOR_ID_ADAPTEC2, 0x0908)
6c223761 9709 },
55790064
KB		 9710 {
9711 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
9712 PCI_VENDOR_ID_ADAPTEC2, 0x090a)
9713 },
6c223761
KB		 9714 {
9715 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
7eddabff 9716 PCI_VENDOR_ID_ADAPTEC2, 0x1200)
6c223761
KB		 9717 },
9718 {
9719 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
7eddabff 9720 PCI_VENDOR_ID_ADAPTEC2, 0x1201)
6c223761
KB		 9721 },
9722 {
9723 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
7eddabff 9724 PCI_VENDOR_ID_ADAPTEC2, 0x1202)
6c223761
KB		 9725 },
9726 {
9727 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
7eddabff 9728 PCI_VENDOR_ID_ADAPTEC2, 0x1280)
6c223761
KB		 9729 },
9730 {
9731 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
7eddabff 9732 PCI_VENDOR_ID_ADAPTEC2, 0x1281)
6c223761 9733 },
b0f9408b
KB		 9734 {
9735 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
9736 PCI_VENDOR_ID_ADAPTEC2, 0x1282)
9737 },
6c223761
KB		 9738 {
9739 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
7eddabff 9740 PCI_VENDOR_ID_ADAPTEC2, 0x1300)
6c223761
KB		 9741 },
9742 {
9743 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
7eddabff 9744 PCI_VENDOR_ID_ADAPTEC2, 0x1301)
6c223761 9745 },
bd809e8d
KB		 9746 {
9747 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
9748 PCI_VENDOR_ID_ADAPTEC2, 0x1302)
9749 },
9750 {
9751 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
9752 PCI_VENDOR_ID_ADAPTEC2, 0x1303)
9753 },
c57ee4cc
DB		 9754 {
9755 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
9756 PCI_VENDOR_ID_ADAPTEC2, 0x1304)
9757 },
6c223761
KB		 9758 {
9759 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
7eddabff
KB		 9760 PCI_VENDOR_ID_ADAPTEC2, 0x1380)
9761 },
75fbeacc
KB		 9762 {
9763 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
9764 PCI_VENDOR_ID_ADAPTEC2, 0x1400)
9765 },
9766 {
9767 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
9768 PCI_VENDOR_ID_ADAPTEC2, 0x1402)
9769 },
9770 {
9771 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
9772 PCI_VENDOR_ID_ADAPTEC2, 0x1410)
9773 },
9774 {
9775 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
9776 PCI_VENDOR_ID_ADAPTEC2, 0x1411)
9777 },
9778 {
9779 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
9780 PCI_VENDOR_ID_ADAPTEC2, 0x1412)
9781 },
9782 {
9783 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
9784 PCI_VENDOR_ID_ADAPTEC2, 0x1420)
9785 },
9786 {
9787 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
9788 PCI_VENDOR_ID_ADAPTEC2, 0x1430)
9789 },
9790 {
9791 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
9792 PCI_VENDOR_ID_ADAPTEC2, 0x1440)
9793 },
9794 {
9795 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
9796 PCI_VENDOR_ID_ADAPTEC2, 0x1441)
9797 },
9798 {
9799 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
9800 PCI_VENDOR_ID_ADAPTEC2, 0x1450)
9801 },
9802 {
9803 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
9804 PCI_VENDOR_ID_ADAPTEC2, 0x1452)
9805 },
9806 {
9807 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
9808 PCI_VENDOR_ID_ADAPTEC2, 0x1460)
9809 },
9810 {
9811 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
9812 PCI_VENDOR_ID_ADAPTEC2, 0x1461)
9813 },
9814 {
9815 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
9816 PCI_VENDOR_ID_ADAPTEC2, 0x1462)
9817 },
c57ee4cc
DB		 9818 {
9819 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
9820 PCI_VENDOR_ID_ADAPTEC2, 0x1463)
9821 },
75fbeacc
KB		 9822 {
9823 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
9824 PCI_VENDOR_ID_ADAPTEC2, 0x1470)
9825 },
9826 {
9827 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
9828 PCI_VENDOR_ID_ADAPTEC2, 0x1471)
9829 },
9830 {
9831 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
9832 PCI_VENDOR_ID_ADAPTEC2, 0x1472)
9833 },
c57ee4cc
DB		 9834 {
9835 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
9836 PCI_VENDOR_ID_ADAPTEC2, 0x1473)
9837 },
9838 {
9839 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
9840 PCI_VENDOR_ID_ADAPTEC2, 0x1474)
9841 },
0b93cf2a
MM		 9842 {
9843 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
9844 PCI_VENDOR_ID_ADAPTEC2, 0x1475)
9845 },
75fbeacc
KB		 9846 {
9847 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
9848 PCI_VENDOR_ID_ADAPTEC2, 0x1480)
9849 },
9850 {
9851 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
9852 PCI_VENDOR_ID_ADAPTEC2, 0x1490)
9853 },
9854 {
9855 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
9856 PCI_VENDOR_ID_ADAPTEC2, 0x1491)
9857 },
9858 {
9859 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
9860 PCI_VENDOR_ID_ADAPTEC2, 0x14a0)
9861 },
9862 {
9863 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
9864 PCI_VENDOR_ID_ADAPTEC2, 0x14a1)
9865 },
80982656
MM		 9866 {
9867 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
9868 PCI_VENDOR_ID_ADAPTEC2, 0x14a2)
9869 },
c57ee4cc
DB		 9870 {
9871 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
9872 PCI_VENDOR_ID_ADAPTEC2, 0x14a4)
9873 },
9874 {
9875 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
9876 PCI_VENDOR_ID_ADAPTEC2, 0x14a5)
9877 },
9878 {
9879 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
9880 PCI_VENDOR_ID_ADAPTEC2, 0x14a6)
9881 },
75fbeacc
KB		 9882 {
9883 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
9884 PCI_VENDOR_ID_ADAPTEC2, 0x14b0)
9885 },
9886 {
9887 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
9888 PCI_VENDOR_ID_ADAPTEC2, 0x14b1)
9889 },
9890 {
9891 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
9892 PCI_VENDOR_ID_ADAPTEC2, 0x14c0)
9893 },
9894 {
9895 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
9896 PCI_VENDOR_ID_ADAPTEC2, 0x14c1)
9897 },
c57ee4cc
DB		 9898 {
9899 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
9900 PCI_VENDOR_ID_ADAPTEC2, 0x14c2)
9901 },
0b93cf2a
MM		 9902 {
9903 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
9904 PCI_VENDOR_ID_ADAPTEC2, 0x14c3)
9905 },
9906 {
9907 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
9908 PCI_VENDOR_ID_ADAPTEC2, 0x14c4)
9909 },
75fbeacc
KB		 9910 {
9911 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
9912 PCI_VENDOR_ID_ADAPTEC2, 0x14d0)
9913 },
9914 {
9915 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
9916 PCI_VENDOR_ID_ADAPTEC2, 0x14e0)
9917 },
9918 {
9919 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
9920 PCI_VENDOR_ID_ADAPTEC2, 0x14f0)
9921 },
9f8d05fa
KB		 9922 {
9923 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
9924 PCI_VENDOR_ID_ADVANTECH, 0x8312)
9925 },
55790064
KB		 9926 {
9927 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
9928 PCI_VENDOR_ID_DELL, 0x1fe0)
9929 },
7eddabff
KB		 9930 {
9931 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
9932 PCI_VENDOR_ID_HP, 0x0600)
9933 },
9934 {
9935 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
9936 PCI_VENDOR_ID_HP, 0x0601)
9937 },
9938 {
9939 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
9940 PCI_VENDOR_ID_HP, 0x0602)
9941 },
9942 {
9943 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
9944 PCI_VENDOR_ID_HP, 0x0603)
9945 },
9946 {
9947 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
55790064 9948 PCI_VENDOR_ID_HP, 0x0609)
7eddabff
KB		 9949 },
9950 {
9951 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
9952 PCI_VENDOR_ID_HP, 0x0650)
9953 },
9954 {
9955 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
9956 PCI_VENDOR_ID_HP, 0x0651)
9957 },
9958 {
9959 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
9960 PCI_VENDOR_ID_HP, 0x0652)
9961 },
9962 {
9963 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
9964 PCI_VENDOR_ID_HP, 0x0653)
9965 },
9966 {
9967 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
9968 PCI_VENDOR_ID_HP, 0x0654)
9969 },
9970 {
9971 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
9972 PCI_VENDOR_ID_HP, 0x0655)
9973 },
7eddabff
KB		 9974 {
9975 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
9976 PCI_VENDOR_ID_HP, 0x0700)
9977 },
9978 {
9979 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
9980 PCI_VENDOR_ID_HP, 0x0701)
6c223761
KB		 9981 },
9982 {
9983 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
9984 PCI_VENDOR_ID_HP, 0x1001)
9985 },
75fbeacc
KB		 9986 {
9987 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
9988 PCI_VENDOR_ID_HP, 0x1002)
9989 },
6c223761
KB		 9990 {
9991 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
9992 PCI_VENDOR_ID_HP, 0x1100)
9993 },
9994 {
9995 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
9996 PCI_VENDOR_ID_HP, 0x1101)
9997 },
75fbeacc
KB		 9998 {
9999 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
10000 0x1590, 0x0294)
10001 },
10002 {
10003 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
10004 0x1590, 0x02db)
10005 },
10006 {
10007 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
10008 0x1590, 0x02dc)
10009 },
10010 {
10011 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
10012 0x1590, 0x032e)
10013 },
c57ee4cc
DB		 10014 {
10015 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
10016 0x1590, 0x036f)
10017 },
10018 {
10019 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
10020 0x1590, 0x0381)
10021 },
10022 {
10023 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
10024 0x1590, 0x0382)
10025 },
10026 {
10027 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
10028 0x1590, 0x0383)
10029 },
8bdb3b9c
GW		 10030 {
10031 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
10032 0x1d8d, 0x0800)
10033 },
10034 {
10035 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
10036 0x1d8d, 0x0908)
10037 },
10038 {
10039 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
10040 0x1d8d, 0x0806)
10041 },
10042 {
10043 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
10044 0x1d8d, 0x0916)
10045 },
71ecc60d
GW		 10046 {
10047 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
10048 PCI_VENDOR_ID_GIGABYTE, 0x1000)
10049 },
e326b97c
MM		 10050 {
10051 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
10052 0x1dfc, 0x3161)
10053 },
c57ee4cc
DB		 10054 {
10055 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
10056 0x1f0c, 0x3161)
10057 },
fe0375d4
DS		 10058 {
10059 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
10060 0x1cf2, 0x0804)
10061 },
10062 {
10063 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
10064 0x1cf2, 0x0805)
10065 },
10066 {
10067 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
10068 0x1cf2, 0x0806)
10069 },
09d9968a
B		 10070 {
10071 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
10072 0x1cf2, 0x5445)
10073 },
10074 {
10075 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
10076 0x1cf2, 0x5446)
10077 },
10078 {
10079 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
10080 0x1cf2, 0x5447)
10081 },
c57ee4cc
DB		 10082 {
10083 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
10084 0x1cf2, 0x5449)
10085 },
10086 {
10087 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
10088 0x1cf2, 0x544a)
10089 },
10090 {
10091 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
10092 0x1cf2, 0x544b)
10093 },
10094 {
10095 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
10096 0x1cf2, 0x544d)
10097 },
10098 {
10099 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
10100 0x1cf2, 0x544e)
10101 },
10102 {
10103 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
10104 0x1cf2, 0x544f)
10105 },
fe0375d4
DS		 10106 {
10107 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
10108 0x1cf2, 0x54da)
10109 },
10110 {
10111 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
10112 0x1cf2, 0x54db)
10113 },
10114 {
10115 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
10116 0x1cf2, 0x54dc)
10117 },
09d9968a
B		 10118 {
10119 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
10120 0x1cf2, 0x0b27)
10121 },
10122 {
10123 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
10124 0x1cf2, 0x0b29)
10125 },
10126 {
10127 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
10128 0x1cf2, 0x0b45)
10129 },
dab53784
MB		 10130 {
10131 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
10132 0x1cc4, 0x0101)
10133 },
10134 {
10135 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
10136 0x1cc4, 0x0201)
10137 },
2a9c2ba2
MM		 10138 {
10139 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
10140 PCI_VENDOR_ID_LENOVO, 0x0220)
10141 },
10142 {
10143 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
10144 PCI_VENDOR_ID_LENOVO, 0x0221)
10145 },
10146 {
10147 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
10148 PCI_VENDOR_ID_LENOVO, 0x0520)
10149 },
10150 {
10151 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
10152 PCI_VENDOR_ID_LENOVO, 0x0522)
10153 },
10154 {
10155 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
10156 PCI_VENDOR_ID_LENOVO, 0x0620)
10157 },
10158 {
10159 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
10160 PCI_VENDOR_ID_LENOVO, 0x0621)
10161 },
10162 {
10163 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
10164 PCI_VENDOR_ID_LENOVO, 0x0622)
10165 },
10166 {
10167 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
10168 PCI_VENDOR_ID_LENOVO, 0x0623)
10169 },
fe0375d4
DS		 10170 {
10171 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
10172 0x1014, 0x0718)
10173 },
c6d5aa44
DS		 10174 {
10175 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
10176 0x1137, 0x02f8)
10177 },
10178 {
10179 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
10180 0x1137, 0x02f9)
10181 },
10182 {
10183 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
10184 0x1137, 0x02fa)
10185 },
0b93cf2a
MM		 10186 {
10187 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
10188 0x1e93, 0x1000)
10189 },
10190 {
10191 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
10192 0x1e93, 0x1001)
10193 },
10194 {
10195 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
10196 0x1e93, 0x1002)
10197 },
fe0375d4
DS		 10198 {
10199 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
10200 0x1e93, 0x1005)
10201 },
10202 {
10203 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
10204 0x1f51, 0x1001)
10205 },
10206 {
10207 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
10208 0x1f51, 0x1002)
10209 },
10210 {
10211 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
10212 0x1f51, 0x1003)
10213 },
10214 {
10215 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
10216 0x1f51, 0x1004)
10217 },
10218 {
10219 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
10220 0x1f51, 0x1005)
10221 },
10222 {
10223 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
10224 0x1f51, 0x1006)
10225 },
10226 {
10227 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
10228 0x1f51, 0x1007)
10229 },
10230 {
10231 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
10232 0x1f51, 0x1008)
10233 },
10234 {
10235 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
10236 0x1f51, 0x1009)
10237 },
10238 {
10239 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
10240 0x1f51, 0x100a)
10241 },
c6d5aa44
DS		 10242 {
10243 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
10244 0x1f51, 0x100e)
10245 },
10246 {
10247 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
10248 0x1f51, 0x100f)
10249 },
10250 {
10251 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
10252 0x1f51, 0x1010)
10253 },
10254 {
10255 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
10256 0x1f51, 0x1011)
10257 },
10258 {
10259 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
10260 0x1f51, 0x1043)
10261 },
10262 {
10263 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
10264 0x1f51, 0x1044)
10265 },
10266 {
10267 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
10268 0x1f51, 0x1045)
10269 },
6c223761
KB		 10270 {
10271 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
10272 PCI_ANY_ID, PCI_ANY_ID)
10273 },
10274 { 0 }
10275};
10276
10277MODULE_DEVICE_TABLE(pci, pqi_pci_id_table);
10278
10279static struct pci_driver pqi_pci_driver = {
10280 .name = DRIVER_NAME_SHORT,
10281 .id_table = pqi_pci_id_table,
10282 .probe = pqi_pci_probe,
10283 .remove = pqi_pci_remove,
10284 .shutdown = pqi_shutdown,
061ef06a 10285#if defined(CONFIG_PM)
c66e078a
KB		 10286 .driver = {
10287 .pm = &pqi_pm_ops
10288 },
061ef06a 10289#endif
6c223761
KB		 10290};
10291
10292static int __init pqi_init(void)
10293{
10294 int rc;
10295
10296 pr_info(DRIVER_NAME "\n");
5e693586
MM		 10297 pqi_verify_structures();
10298 sis_verify_structures();
6c223761 10299
8b664fef 10300 pqi_sas_transport_template = sas_attach_transport(&pqi_sas_transport_functions);
6c223761
KB		 10301 if (!pqi_sas_transport_template)
10302 return -ENODEV;
10303
3c50976f
KB		 10304 pqi_process_module_params();
10305
6c223761
KB		 10306 rc = pci_register_driver(&pqi_pci_driver);
10307 if (rc)
10308 sas_release_transport(pqi_sas_transport_template);
10309
10310 return rc;
10311}
10312
10313static void __exit pqi_cleanup(void)
10314{
10315 pci_unregister_driver(&pqi_pci_driver);
10316 sas_release_transport(pqi_sas_transport_template);
10317}
10318
10319module_init(pqi_init);
10320module_exit(pqi_cleanup);
10321
5e693586 10322static void pqi_verify_structures(void)
6c223761
KB		 10323{
10324 BUILD_BUG_ON(offsetof(struct pqi_ctrl_registers,
10325 sis_host_to_ctrl_doorbell) != 0x20);
10326 BUILD_BUG_ON(offsetof(struct pqi_ctrl_registers,
10327 sis_interrupt_mask) != 0x34);
10328 BUILD_BUG_ON(offsetof(struct pqi_ctrl_registers,
10329 sis_ctrl_to_host_doorbell) != 0x9c);
10330 BUILD_BUG_ON(offsetof(struct pqi_ctrl_registers,
10331 sis_ctrl_to_host_doorbell_clear) != 0xa0);
ff6abb73
KB		 10332 BUILD_BUG_ON(offsetof(struct pqi_ctrl_registers,
10333 sis_driver_scratch) != 0xb0);
2708a256
KB		 10334 BUILD_BUG_ON(offsetof(struct pqi_ctrl_registers,
10335 sis_product_identifier) != 0xb4);
6c223761
KB		 10336 BUILD_BUG_ON(offsetof(struct pqi_ctrl_registers,
10337 sis_firmware_status) != 0xbc);
5d1f03e6
MB		 10338 BUILD_BUG_ON(offsetof(struct pqi_ctrl_registers,
10339 sis_ctrl_shutdown_reason_code) != 0xcc);
6c223761
KB		 10340 BUILD_BUG_ON(offsetof(struct pqi_ctrl_registers,
10341 sis_mailbox) != 0x1000);
10342 BUILD_BUG_ON(offsetof(struct pqi_ctrl_registers,
10343 pqi_registers) != 0x4000);
10344
10345 BUILD_BUG_ON(offsetof(struct pqi_iu_header,
10346 iu_type) != 0x0);
10347 BUILD_BUG_ON(offsetof(struct pqi_iu_header,
10348 iu_length) != 0x2);
10349 BUILD_BUG_ON(offsetof(struct pqi_iu_header,
10350 response_queue_id) != 0x4);
10351 BUILD_BUG_ON(offsetof(struct pqi_iu_header,
ae0c189d 10352 driver_flags) != 0x6);
6c223761
KB		 10353 BUILD_BUG_ON(sizeof(struct pqi_iu_header) != 0x8);
10354
10355 BUILD_BUG_ON(offsetof(struct pqi_aio_error_info,
10356 status) != 0x0);
10357 BUILD_BUG_ON(offsetof(struct pqi_aio_error_info,
10358 service_response) != 0x1);
10359 BUILD_BUG_ON(offsetof(struct pqi_aio_error_info,
10360 data_present) != 0x2);
10361 BUILD_BUG_ON(offsetof(struct pqi_aio_error_info,
10362 reserved) != 0x3);
10363 BUILD_BUG_ON(offsetof(struct pqi_aio_error_info,
10364 residual_count) != 0x4);
10365 BUILD_BUG_ON(offsetof(struct pqi_aio_error_info,
10366 data_length) != 0x8);
10367 BUILD_BUG_ON(offsetof(struct pqi_aio_error_info,
10368 reserved1) != 0xa);
10369 BUILD_BUG_ON(offsetof(struct pqi_aio_error_info,
10370 data) != 0xc);
10371 BUILD_BUG_ON(sizeof(struct pqi_aio_error_info) != 0x10c);
10372
10373 BUILD_BUG_ON(offsetof(struct pqi_raid_error_info,
10374 data_in_result) != 0x0);
10375 BUILD_BUG_ON(offsetof(struct pqi_raid_error_info,
10376 data_out_result) != 0x1);
10377 BUILD_BUG_ON(offsetof(struct pqi_raid_error_info,
10378 reserved) != 0x2);
10379 BUILD_BUG_ON(offsetof(struct pqi_raid_error_info,
10380 status) != 0x5);
10381 BUILD_BUG_ON(offsetof(struct pqi_raid_error_info,
10382 status_qualifier) != 0x6);
10383 BUILD_BUG_ON(offsetof(struct pqi_raid_error_info,
10384 sense_data_length) != 0x8);
10385 BUILD_BUG_ON(offsetof(struct pqi_raid_error_info,
10386 response_data_length) != 0xa);
10387 BUILD_BUG_ON(offsetof(struct pqi_raid_error_info,
10388 data_in_transferred) != 0xc);
10389 BUILD_BUG_ON(offsetof(struct pqi_raid_error_info,
10390 data_out_transferred) != 0x10);
10391 BUILD_BUG_ON(offsetof(struct pqi_raid_error_info,
10392 data) != 0x14);
10393 BUILD_BUG_ON(sizeof(struct pqi_raid_error_info) != 0x114);
10394
10395 BUILD_BUG_ON(offsetof(struct pqi_device_registers,
10396 signature) != 0x0);
10397 BUILD_BUG_ON(offsetof(struct pqi_device_registers,
10398 function_and_status_code) != 0x8);
10399 BUILD_BUG_ON(offsetof(struct pqi_device_registers,
10400 max_admin_iq_elements) != 0x10);
10401 BUILD_BUG_ON(offsetof(struct pqi_device_registers,
10402 max_admin_oq_elements) != 0x11);
10403 BUILD_BUG_ON(offsetof(struct pqi_device_registers,
10404 admin_iq_element_length) != 0x12);
10405 BUILD_BUG_ON(offsetof(struct pqi_device_registers,
10406 admin_oq_element_length) != 0x13);
10407 BUILD_BUG_ON(offsetof(struct pqi_device_registers,
10408 max_reset_timeout) != 0x14);
10409 BUILD_BUG_ON(offsetof(struct pqi_device_registers,
10410 legacy_intx_status) != 0x18);
10411 BUILD_BUG_ON(offsetof(struct pqi_device_registers,
10412 legacy_intx_mask_set) != 0x1c);
10413 BUILD_BUG_ON(offsetof(struct pqi_device_registers,
10414 legacy_intx_mask_clear) != 0x20);
10415 BUILD_BUG_ON(offsetof(struct pqi_device_registers,
10416 device_status) != 0x40);
10417 BUILD_BUG_ON(offsetof(struct pqi_device_registers,
10418 admin_iq_pi_offset) != 0x48);
10419 BUILD_BUG_ON(offsetof(struct pqi_device_registers,
10420 admin_oq_ci_offset) != 0x50);
10421 BUILD_BUG_ON(offsetof(struct pqi_device_registers,
10422 admin_iq_element_array_addr) != 0x58);
10423 BUILD_BUG_ON(offsetof(struct pqi_device_registers,
10424 admin_oq_element_array_addr) != 0x60);
10425 BUILD_BUG_ON(offsetof(struct pqi_device_registers,
10426 admin_iq_ci_addr) != 0x68);
10427 BUILD_BUG_ON(offsetof(struct pqi_device_registers,
10428 admin_oq_pi_addr) != 0x70);
10429 BUILD_BUG_ON(offsetof(struct pqi_device_registers,
10430 admin_iq_num_elements) != 0x78);
10431 BUILD_BUG_ON(offsetof(struct pqi_device_registers,
10432 admin_oq_num_elements) != 0x79);
10433 BUILD_BUG_ON(offsetof(struct pqi_device_registers,
10434 admin_queue_int_msg_num) != 0x7a);
10435 BUILD_BUG_ON(offsetof(struct pqi_device_registers,
10436 device_error) != 0x80);
10437 BUILD_BUG_ON(offsetof(struct pqi_device_registers,
10438 error_details) != 0x88);
10439 BUILD_BUG_ON(offsetof(struct pqi_device_registers,
10440 device_reset) != 0x90);
10441 BUILD_BUG_ON(offsetof(struct pqi_device_registers,
10442 power_action) != 0x94);
10443 BUILD_BUG_ON(sizeof(struct pqi_device_registers) != 0x100);
10444
10445 BUILD_BUG_ON(offsetof(struct pqi_general_admin_request,
10446 header.iu_type) != 0);
10447 BUILD_BUG_ON(offsetof(struct pqi_general_admin_request,
10448 header.iu_length) != 2);
10449 BUILD_BUG_ON(offsetof(struct pqi_general_admin_request,
ae0c189d 10450 header.driver_flags) != 6);
6c223761
KB		 10451 BUILD_BUG_ON(offsetof(struct pqi_general_admin_request,
10452 request_id) != 8);
10453 BUILD_BUG_ON(offsetof(struct pqi_general_admin_request,
10454 function_code) != 10);
10455 BUILD_BUG_ON(offsetof(struct pqi_general_admin_request,
10456 data.report_device_capability.buffer_length) != 44);
10457 BUILD_BUG_ON(offsetof(struct pqi_general_admin_request,
10458 data.report_device_capability.sg_descriptor) != 48);
10459 BUILD_BUG_ON(offsetof(struct pqi_general_admin_request,
10460 data.create_operational_iq.queue_id) != 12);
10461 BUILD_BUG_ON(offsetof(struct pqi_general_admin_request,
10462 data.create_operational_iq.element_array_addr) != 16);
10463 BUILD_BUG_ON(offsetof(struct pqi_general_admin_request,
10464 data.create_operational_iq.ci_addr) != 24);
10465 BUILD_BUG_ON(offsetof(struct pqi_general_admin_request,
10466 data.create_operational_iq.num_elements) != 32);
10467 BUILD_BUG_ON(offsetof(struct pqi_general_admin_request,
10468 data.create_operational_iq.element_length) != 34);
10469 BUILD_BUG_ON(offsetof(struct pqi_general_admin_request,
10470 data.create_operational_iq.queue_protocol) != 36);
10471 BUILD_BUG_ON(offsetof(struct pqi_general_admin_request,
10472 data.create_operational_oq.queue_id) != 12);
10473 BUILD_BUG_ON(offsetof(struct pqi_general_admin_request,
10474 data.create_operational_oq.element_array_addr) != 16);
10475 BUILD_BUG_ON(offsetof(struct pqi_general_admin_request,
10476 data.create_operational_oq.pi_addr) != 24);
10477 BUILD_BUG_ON(offsetof(struct pqi_general_admin_request,
10478 data.create_operational_oq.num_elements) != 32);
10479 BUILD_BUG_ON(offsetof(struct pqi_general_admin_request,
10480 data.create_operational_oq.element_length) != 34);
10481 BUILD_BUG_ON(offsetof(struct pqi_general_admin_request,
10482 data.create_operational_oq.queue_protocol) != 36);
10483 BUILD_BUG_ON(offsetof(struct pqi_general_admin_request,
10484 data.create_operational_oq.int_msg_num) != 40);
10485 BUILD_BUG_ON(offsetof(struct pqi_general_admin_request,
10486 data.create_operational_oq.coalescing_count) != 42);
10487 BUILD_BUG_ON(offsetof(struct pqi_general_admin_request,
10488 data.create_operational_oq.min_coalescing_time) != 44);
10489 BUILD_BUG_ON(offsetof(struct pqi_general_admin_request,
10490 data.create_operational_oq.max_coalescing_time) != 48);
10491 BUILD_BUG_ON(offsetof(struct pqi_general_admin_request,
10492 data.delete_operational_queue.queue_id) != 12);
10493 BUILD_BUG_ON(sizeof(struct pqi_general_admin_request) != 64);
c593642c 10494 BUILD_BUG_ON(sizeof_field(struct pqi_general_admin_request,
6c223761 10495 data.create_operational_iq) != 64 - 11);
c593642c 10496 BUILD_BUG_ON(sizeof_field(struct pqi_general_admin_request,
6c223761 10497 data.create_operational_oq) != 64 - 11);
c593642c 10498 BUILD_BUG_ON(sizeof_field(struct pqi_general_admin_request,
6c223761
KB		 10499 data.delete_operational_queue) != 64 - 11);
10500
10501 BUILD_BUG_ON(offsetof(struct pqi_general_admin_response,
10502 header.iu_type) != 0);
10503 BUILD_BUG_ON(offsetof(struct pqi_general_admin_response,
10504 header.iu_length) != 2);
10505 BUILD_BUG_ON(offsetof(struct pqi_general_admin_response,
ae0c189d 10506 header.driver_flags) != 6);
6c223761
KB		 10507 BUILD_BUG_ON(offsetof(struct pqi_general_admin_response,
10508 request_id) != 8);
10509 BUILD_BUG_ON(offsetof(struct pqi_general_admin_response,
10510 function_code) != 10);
10511 BUILD_BUG_ON(offsetof(struct pqi_general_admin_response,
10512 status) != 11);
10513 BUILD_BUG_ON(offsetof(struct pqi_general_admin_response,
10514 data.create_operational_iq.status_descriptor) != 12);
10515 BUILD_BUG_ON(offsetof(struct pqi_general_admin_response,
10516 data.create_operational_iq.iq_pi_offset) != 16);
10517 BUILD_BUG_ON(offsetof(struct pqi_general_admin_response,
10518 data.create_operational_oq.status_descriptor) != 12);
10519 BUILD_BUG_ON(offsetof(struct pqi_general_admin_response,
10520 data.create_operational_oq.oq_ci_offset) != 16);
10521 BUILD_BUG_ON(sizeof(struct pqi_general_admin_response) != 64);
10522
10523 BUILD_BUG_ON(offsetof(struct pqi_raid_path_request,
10524 header.iu_type) != 0);
10525 BUILD_BUG_ON(offsetof(struct pqi_raid_path_request,
10526 header.iu_length) != 2);
10527 BUILD_BUG_ON(offsetof(struct pqi_raid_path_request,
10528 header.response_queue_id) != 4);
10529 BUILD_BUG_ON(offsetof(struct pqi_raid_path_request,
ae0c189d 10530 header.driver_flags) != 6);
6c223761
KB		 10531 BUILD_BUG_ON(offsetof(struct pqi_raid_path_request,
10532 request_id) != 8);
10533 BUILD_BUG_ON(offsetof(struct pqi_raid_path_request,
10534 nexus_id) != 10);
10535 BUILD_BUG_ON(offsetof(struct pqi_raid_path_request,
10536 buffer_length) != 12);
10537 BUILD_BUG_ON(offsetof(struct pqi_raid_path_request,
10538 lun_number) != 16);
10539 BUILD_BUG_ON(offsetof(struct pqi_raid_path_request,
10540 protocol_specific) != 24);
10541 BUILD_BUG_ON(offsetof(struct pqi_raid_path_request,
10542 error_index) != 27);
10543 BUILD_BUG_ON(offsetof(struct pqi_raid_path_request,
10544 cdb) != 32);
21432010 10545 BUILD_BUG_ON(offsetof(struct pqi_raid_path_request,
10546 timeout) != 60);
6c223761
KB		 10547 BUILD_BUG_ON(offsetof(struct pqi_raid_path_request,
10548 sg_descriptors) != 64);
10549 BUILD_BUG_ON(sizeof(struct pqi_raid_path_request) !=
10550 PQI_OPERATIONAL_IQ_ELEMENT_LENGTH);
10551
10552 BUILD_BUG_ON(offsetof(struct pqi_aio_path_request,
10553 header.iu_type) != 0);
10554 BUILD_BUG_ON(offsetof(struct pqi_aio_path_request,
10555 header.iu_length) != 2);
10556 BUILD_BUG_ON(offsetof(struct pqi_aio_path_request,
10557 header.response_queue_id) != 4);
10558 BUILD_BUG_ON(offsetof(struct pqi_aio_path_request,
ae0c189d 10559 header.driver_flags) != 6);
6c223761
KB		 10560 BUILD_BUG_ON(offsetof(struct pqi_aio_path_request,
10561 request_id) != 8);
10562 BUILD_BUG_ON(offsetof(struct pqi_aio_path_request,
10563 nexus_id) != 12);
10564 BUILD_BUG_ON(offsetof(struct pqi_aio_path_request,
10565 buffer_length) != 16);
10566 BUILD_BUG_ON(offsetof(struct pqi_aio_path_request,
10567 data_encryption_key_index) != 22);
10568 BUILD_BUG_ON(offsetof(struct pqi_aio_path_request,
10569 encrypt_tweak_lower) != 24);
10570 BUILD_BUG_ON(offsetof(struct pqi_aio_path_request,
10571 encrypt_tweak_upper) != 28);
10572 BUILD_BUG_ON(offsetof(struct pqi_aio_path_request,
10573 cdb) != 32);
10574 BUILD_BUG_ON(offsetof(struct pqi_aio_path_request,
10575 error_index) != 48);
10576 BUILD_BUG_ON(offsetof(struct pqi_aio_path_request,
10577 num_sg_descriptors) != 50);
10578 BUILD_BUG_ON(offsetof(struct pqi_aio_path_request,
10579 cdb_length) != 51);
10580 BUILD_BUG_ON(offsetof(struct pqi_aio_path_request,
10581 lun_number) != 52);
10582 BUILD_BUG_ON(offsetof(struct pqi_aio_path_request,
10583 sg_descriptors) != 64);
10584 BUILD_BUG_ON(sizeof(struct pqi_aio_path_request) !=
10585 PQI_OPERATIONAL_IQ_ELEMENT_LENGTH);
10586
10587 BUILD_BUG_ON(offsetof(struct pqi_io_response,
10588 header.iu_type) != 0);
10589 BUILD_BUG_ON(offsetof(struct pqi_io_response,
10590 header.iu_length) != 2);
10591 BUILD_BUG_ON(offsetof(struct pqi_io_response,
10592 request_id) != 8);
10593 BUILD_BUG_ON(offsetof(struct pqi_io_response,
10594 error_index) != 10);
10595
10596 BUILD_BUG_ON(offsetof(struct pqi_general_management_request,
10597 header.iu_type) != 0);
10598 BUILD_BUG_ON(offsetof(struct pqi_general_management_request,
10599 header.iu_length) != 2);
10600 BUILD_BUG_ON(offsetof(struct pqi_general_management_request,
10601 header.response_queue_id) != 4);
10602 BUILD_BUG_ON(offsetof(struct pqi_general_management_request,
10603 request_id) != 8);
10604 BUILD_BUG_ON(offsetof(struct pqi_general_management_request,
10605 data.report_event_configuration.buffer_length) != 12);
10606 BUILD_BUG_ON(offsetof(struct pqi_general_management_request,
10607 data.report_event_configuration.sg_descriptors) != 16);
10608 BUILD_BUG_ON(offsetof(struct pqi_general_management_request,
10609 data.set_event_configuration.global_event_oq_id) != 10);
10610 BUILD_BUG_ON(offsetof(struct pqi_general_management_request,
10611 data.set_event_configuration.buffer_length) != 12);
10612 BUILD_BUG_ON(offsetof(struct pqi_general_management_request,
10613 data.set_event_configuration.sg_descriptors) != 16);
10614
10615 BUILD_BUG_ON(offsetof(struct pqi_iu_layer_descriptor,
10616 max_inbound_iu_length) != 6);
10617 BUILD_BUG_ON(offsetof(struct pqi_iu_layer_descriptor,
10618 max_outbound_iu_length) != 14);
10619 BUILD_BUG_ON(sizeof(struct pqi_iu_layer_descriptor) != 16);
10620
10621 BUILD_BUG_ON(offsetof(struct pqi_device_capability,
10622 data_length) != 0);
10623 BUILD_BUG_ON(offsetof(struct pqi_device_capability,
10624 iq_arbitration_priority_support_bitmask) != 8);
10625 BUILD_BUG_ON(offsetof(struct pqi_device_capability,
10626 maximum_aw_a) != 9);
10627 BUILD_BUG_ON(offsetof(struct pqi_device_capability,
10628 maximum_aw_b) != 10);
10629 BUILD_BUG_ON(offsetof(struct pqi_device_capability,
10630 maximum_aw_c) != 11);
10631 BUILD_BUG_ON(offsetof(struct pqi_device_capability,
10632 max_inbound_queues) != 16);
10633 BUILD_BUG_ON(offsetof(struct pqi_device_capability,
10634 max_elements_per_iq) != 18);
10635 BUILD_BUG_ON(offsetof(struct pqi_device_capability,
10636 max_iq_element_length) != 24);
10637 BUILD_BUG_ON(offsetof(struct pqi_device_capability,
10638 min_iq_element_length) != 26);
10639 BUILD_BUG_ON(offsetof(struct pqi_device_capability,
10640 max_outbound_queues) != 30);
10641 BUILD_BUG_ON(offsetof(struct pqi_device_capability,
10642 max_elements_per_oq) != 32);
10643 BUILD_BUG_ON(offsetof(struct pqi_device_capability,
10644 intr_coalescing_time_granularity) != 34);
10645 BUILD_BUG_ON(offsetof(struct pqi_device_capability,
10646 max_oq_element_length) != 36);
10647 BUILD_BUG_ON(offsetof(struct pqi_device_capability,
10648 min_oq_element_length) != 38);
10649 BUILD_BUG_ON(offsetof(struct pqi_device_capability,
10650 iu_layer_descriptors) != 64);
10651 BUILD_BUG_ON(sizeof(struct pqi_device_capability) != 576);
10652
10653 BUILD_BUG_ON(offsetof(struct pqi_event_descriptor,
10654 event_type) != 0);
10655 BUILD_BUG_ON(offsetof(struct pqi_event_descriptor,
10656 oq_id) != 2);
10657 BUILD_BUG_ON(sizeof(struct pqi_event_descriptor) != 4);
10658
10659 BUILD_BUG_ON(offsetof(struct pqi_event_config,
10660 num_event_descriptors) != 2);
10661 BUILD_BUG_ON(offsetof(struct pqi_event_config,
10662 descriptors) != 4);
10663
061ef06a
KB		 10664 BUILD_BUG_ON(PQI_NUM_SUPPORTED_EVENTS !=
10665 ARRAY_SIZE(pqi_supported_event_types));
10666
6c223761
KB		 10667 BUILD_BUG_ON(offsetof(struct pqi_event_response,
10668 header.iu_type) != 0);
10669 BUILD_BUG_ON(offsetof(struct pqi_event_response,
10670 header.iu_length) != 2);
10671 BUILD_BUG_ON(offsetof(struct pqi_event_response,
10672 event_type) != 8);
10673 BUILD_BUG_ON(offsetof(struct pqi_event_response,
10674 event_id) != 10);
10675 BUILD_BUG_ON(offsetof(struct pqi_event_response,
10676 additional_event_id) != 12);
10677 BUILD_BUG_ON(offsetof(struct pqi_event_response,
10678 data) != 16);
10679 BUILD_BUG_ON(sizeof(struct pqi_event_response) != 32);
10680
10681 BUILD_BUG_ON(offsetof(struct pqi_event_acknowledge_request,
10682 header.iu_type) != 0);
10683 BUILD_BUG_ON(offsetof(struct pqi_event_acknowledge_request,
10684 header.iu_length) != 2);
10685 BUILD_BUG_ON(offsetof(struct pqi_event_acknowledge_request,
10686 event_type) != 8);
10687 BUILD_BUG_ON(offsetof(struct pqi_event_acknowledge_request,
10688 event_id) != 10);
10689 BUILD_BUG_ON(offsetof(struct pqi_event_acknowledge_request,
10690 additional_event_id) != 12);
10691 BUILD_BUG_ON(sizeof(struct pqi_event_acknowledge_request) != 16);
10692
10693 BUILD_BUG_ON(offsetof(struct pqi_task_management_request,
10694 header.iu_type) != 0);
10695 BUILD_BUG_ON(offsetof(struct pqi_task_management_request,
10696 header.iu_length) != 2);
10697 BUILD_BUG_ON(offsetof(struct pqi_task_management_request,
10698 request_id) != 8);
10699 BUILD_BUG_ON(offsetof(struct pqi_task_management_request,
10700 nexus_id) != 10);
10701 BUILD_BUG_ON(offsetof(struct pqi_task_management_request,
c2922f17
MB		 10702 timeout) != 14);
10703 BUILD_BUG_ON(offsetof(struct pqi_task_management_request,
6c223761
KB		 10704 lun_number) != 16);
10705 BUILD_BUG_ON(offsetof(struct pqi_task_management_request,
10706 protocol_specific) != 24);
10707 BUILD_BUG_ON(offsetof(struct pqi_task_management_request,
10708 outbound_queue_id_to_manage) != 26);
10709 BUILD_BUG_ON(offsetof(struct pqi_task_management_request,
10710 request_id_to_manage) != 28);
10711 BUILD_BUG_ON(offsetof(struct pqi_task_management_request,
10712 task_management_function) != 30);
10713 BUILD_BUG_ON(sizeof(struct pqi_task_management_request) != 32);
10714
10715 BUILD_BUG_ON(offsetof(struct pqi_task_management_response,
10716 header.iu_type) != 0);
10717 BUILD_BUG_ON(offsetof(struct pqi_task_management_response,
10718 header.iu_length) != 2);
10719 BUILD_BUG_ON(offsetof(struct pqi_task_management_response,
10720 request_id) != 8);
10721 BUILD_BUG_ON(offsetof(struct pqi_task_management_response,
10722 nexus_id) != 10);
10723 BUILD_BUG_ON(offsetof(struct pqi_task_management_response,
10724 additional_response_info) != 12);
10725 BUILD_BUG_ON(offsetof(struct pqi_task_management_response,
10726 response_code) != 15);
10727 BUILD_BUG_ON(sizeof(struct pqi_task_management_response) != 16);
10728
10729 BUILD_BUG_ON(offsetof(struct bmic_identify_controller,
10730 configured_logical_drive_count) != 0);
10731 BUILD_BUG_ON(offsetof(struct bmic_identify_controller,
10732 configuration_signature) != 1);
10733 BUILD_BUG_ON(offsetof(struct bmic_identify_controller,
598bef8d 10734 firmware_version_short) != 5);
6c223761
KB		 10735 BUILD_BUG_ON(offsetof(struct bmic_identify_controller,
10736 extended_logical_unit_count) != 154);
10737 BUILD_BUG_ON(offsetof(struct bmic_identify_controller,
10738 firmware_build_number) != 190);
598bef8d
KB		 10739 BUILD_BUG_ON(offsetof(struct bmic_identify_controller,
10740 vendor_id) != 200);
10741 BUILD_BUG_ON(offsetof(struct bmic_identify_controller,
10742 product_id) != 208);
10743 BUILD_BUG_ON(offsetof(struct bmic_identify_controller,
10744 extra_controller_flags) != 286);
6c223761
KB		 10745 BUILD_BUG_ON(offsetof(struct bmic_identify_controller,
10746 controller_mode) != 292);
598bef8d
KB		 10747 BUILD_BUG_ON(offsetof(struct bmic_identify_controller,
10748 spare_part_number) != 293);
10749 BUILD_BUG_ON(offsetof(struct bmic_identify_controller,
10750 firmware_version_long) != 325);
6c223761 10751
1be42f46
KB		 10752 BUILD_BUG_ON(offsetof(struct bmic_identify_physical_device,
10753 phys_bay_in_box) != 115);
10754 BUILD_BUG_ON(offsetof(struct bmic_identify_physical_device,
10755 device_type) != 120);
10756 BUILD_BUG_ON(offsetof(struct bmic_identify_physical_device,
10757 redundant_path_present_map) != 1736);
10758 BUILD_BUG_ON(offsetof(struct bmic_identify_physical_device,
10759 active_path_number) != 1738);
10760 BUILD_BUG_ON(offsetof(struct bmic_identify_physical_device,
10761 alternate_paths_phys_connector) != 1739);
10762 BUILD_BUG_ON(offsetof(struct bmic_identify_physical_device,
10763 alternate_paths_phys_box_on_port) != 1755);
10764 BUILD_BUG_ON(offsetof(struct bmic_identify_physical_device,
10765 current_queue_depth_limit) != 1796);
10766 BUILD_BUG_ON(sizeof(struct bmic_identify_physical_device) != 2560);
10767
f6cc2a77
KB		 10768 BUILD_BUG_ON(sizeof(struct bmic_sense_feature_buffer_header) != 4);
10769 BUILD_BUG_ON(offsetof(struct bmic_sense_feature_buffer_header,
10770 page_code) != 0);
10771 BUILD_BUG_ON(offsetof(struct bmic_sense_feature_buffer_header,
10772 subpage_code) != 1);
10773 BUILD_BUG_ON(offsetof(struct bmic_sense_feature_buffer_header,
10774 buffer_length) != 2);
10775
10776 BUILD_BUG_ON(sizeof(struct bmic_sense_feature_page_header) != 4);
10777 BUILD_BUG_ON(offsetof(struct bmic_sense_feature_page_header,
10778 page_code) != 0);
10779 BUILD_BUG_ON(offsetof(struct bmic_sense_feature_page_header,
10780 subpage_code) != 1);
10781 BUILD_BUG_ON(offsetof(struct bmic_sense_feature_page_header,
10782 page_length) != 2);
10783
10784 BUILD_BUG_ON(sizeof(struct bmic_sense_feature_io_page_aio_subpage)
10785 != 18);
10786 BUILD_BUG_ON(offsetof(struct bmic_sense_feature_io_page_aio_subpage,
10787 header) != 0);
10788 BUILD_BUG_ON(offsetof(struct bmic_sense_feature_io_page_aio_subpage,
10789 firmware_read_support) != 4);
10790 BUILD_BUG_ON(offsetof(struct bmic_sense_feature_io_page_aio_subpage,
10791 driver_read_support) != 5);
10792 BUILD_BUG_ON(offsetof(struct bmic_sense_feature_io_page_aio_subpage,
10793 firmware_write_support) != 6);
10794 BUILD_BUG_ON(offsetof(struct bmic_sense_feature_io_page_aio_subpage,
10795 driver_write_support) != 7);
10796 BUILD_BUG_ON(offsetof(struct bmic_sense_feature_io_page_aio_subpage,
10797 max_transfer_encrypted_sas_sata) != 8);
10798 BUILD_BUG_ON(offsetof(struct bmic_sense_feature_io_page_aio_subpage,
10799 max_transfer_encrypted_nvme) != 10);
10800 BUILD_BUG_ON(offsetof(struct bmic_sense_feature_io_page_aio_subpage,
10801 max_write_raid_5_6) != 12);
10802 BUILD_BUG_ON(offsetof(struct bmic_sense_feature_io_page_aio_subpage,
10803 max_write_raid_1_10_2drive) != 14);
10804 BUILD_BUG_ON(offsetof(struct bmic_sense_feature_io_page_aio_subpage,
10805 max_write_raid_1_10_3drive) != 16);
10806
6c223761
KB		 10807 BUILD_BUG_ON(PQI_ADMIN_IQ_NUM_ELEMENTS > 255);
10808 BUILD_BUG_ON(PQI_ADMIN_OQ_NUM_ELEMENTS > 255);
10809 BUILD_BUG_ON(PQI_ADMIN_IQ_ELEMENT_LENGTH %
10810 PQI_QUEUE_ELEMENT_LENGTH_ALIGNMENT != 0);
10811 BUILD_BUG_ON(PQI_ADMIN_OQ_ELEMENT_LENGTH %
10812 PQI_QUEUE_ELEMENT_LENGTH_ALIGNMENT != 0);
10813 BUILD_BUG_ON(PQI_OPERATIONAL_IQ_ELEMENT_LENGTH > 1048560);
10814 BUILD_BUG_ON(PQI_OPERATIONAL_IQ_ELEMENT_LENGTH %
10815 PQI_QUEUE_ELEMENT_LENGTH_ALIGNMENT != 0);
10816 BUILD_BUG_ON(PQI_OPERATIONAL_OQ_ELEMENT_LENGTH > 1048560);
10817 BUILD_BUG_ON(PQI_OPERATIONAL_OQ_ELEMENT_LENGTH %
10818 PQI_QUEUE_ELEMENT_LENGTH_ALIGNMENT != 0);
10819
10820 BUILD_BUG_ON(PQI_RESERVED_IO_SLOTS >= PQI_MAX_OUTSTANDING_REQUESTS);
d727a776
KB		 10821 BUILD_BUG_ON(PQI_RESERVED_IO_SLOTS >=
10822 PQI_MAX_OUTSTANDING_REQUESTS_KDUMP);
6c223761 10823}
A mirror of Linus' kernel repository