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scsi: sgiwd93: Declare SCSI host template const
[linux-2.6-block.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
e4b73b3f 4 * Copyright (c) 2019-2022 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
2ae45329 36#define DRIVER_VERSION "2.1.20-035"
d56030f8
DB		 37#define DRIVER_MAJOR 2
38#define DRIVER_MINOR 1
2ae45329
DB		 39#define DRIVER_RELEASE 20
40#define DRIVER_REVISION 35
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
6aa26b5a
DB		 51MODULE_AUTHOR("Microchip");
52MODULE_DESCRIPTION("Driver for Microchip Smart Family Controller version "
6c223761 53 DRIVER_VERSION);
6c223761
KB		 54MODULE_VERSION(DRIVER_VERSION);
55MODULE_LICENSE("GPL");
56
c1ea387d
BVA		 57struct pqi_cmd_priv {
58 int this_residual;
59};
60
61static struct pqi_cmd_priv *pqi_cmd_priv(struct scsi_cmnd *cmd)
62{
63 return scsi_cmd_priv(cmd);
64}
65
5e693586 66static void pqi_verify_structures(void);
5d1f03e6
MB		 67static void pqi_take_ctrl_offline(struct pqi_ctrl_info *ctrl_info,
68 enum pqi_ctrl_shutdown_reason ctrl_shutdown_reason);
5f310425 69static void pqi_ctrl_offline_worker(struct work_struct *work);
6c223761
KB		 70static int pqi_scan_scsi_devices(struct pqi_ctrl_info *ctrl_info);
71static void pqi_scan_start(struct Scsi_Host *shost);
72static void pqi_start_io(struct pqi_ctrl_info *ctrl_info,
73 struct pqi_queue_group *queue_group, enum pqi_io_path path,
74 struct pqi_io_request *io_request);
75static int pqi_submit_raid_request_synchronous(struct pqi_ctrl_info *ctrl_info,
76 struct pqi_iu_header *request, unsigned int flags,
ae0c189d 77 struct pqi_raid_error_info *error_info);
6c223761
KB		 78static int pqi_aio_submit_io(struct pqi_ctrl_info *ctrl_info,
79 struct scsi_cmnd *scmd, u32 aio_handle, u8 *cdb,
80 unsigned int cdb_length, struct pqi_queue_group *queue_group,
2a47834d 81 struct pqi_encryption_info *encryption_info, bool raid_bypass, bool io_high_prio);
7a012c23
DB		 82static int pqi_aio_submit_r1_write_io(struct pqi_ctrl_info *ctrl_info,
83 struct scsi_cmnd *scmd, struct pqi_queue_group *queue_group,
84 struct pqi_encryption_info *encryption_info, struct pqi_scsi_dev *device,
85 struct pqi_scsi_dev_raid_map_data *rmd);
6702d2c4
DB		 86static int pqi_aio_submit_r56_write_io(struct pqi_ctrl_info *ctrl_info,
87 struct scsi_cmnd *scmd, struct pqi_queue_group *queue_group,
88 struct pqi_encryption_info *encryption_info, struct pqi_scsi_dev *device,
89 struct pqi_scsi_dev_raid_map_data *rmd);
4fd22c13
MR		 90static void pqi_ofa_ctrl_quiesce(struct pqi_ctrl_info *ctrl_info);
91static void pqi_ofa_ctrl_unquiesce(struct pqi_ctrl_info *ctrl_info);
2790cd4d
KB		 92static int pqi_ofa_ctrl_restart(struct pqi_ctrl_info *ctrl_info, unsigned int delay_secs);
93static void pqi_ofa_setup_host_buffer(struct pqi_ctrl_info *ctrl_info);
4fd22c13
MR		 94static void pqi_ofa_free_host_buffer(struct pqi_ctrl_info *ctrl_info);
95static int pqi_ofa_host_memory_update(struct pqi_ctrl_info *ctrl_info);
1e46731e 96static int pqi_device_wait_for_pending_io(struct pqi_ctrl_info *ctrl_info,
904f2bfd 97 struct pqi_scsi_dev *device, u8 lun, unsigned long timeout_msecs);
331f7e99 98static void pqi_fail_all_outstanding_requests(struct pqi_ctrl_info *ctrl_info);
6c223761
KB		 99
100/* for flags argument to pqi_submit_raid_request_synchronous() */
101#define PQI_SYNC_FLAGS_INTERRUPTABLE 0x1
102
103static struct scsi_transport_template *pqi_sas_transport_template;
104
105static atomic_t pqi_controller_count = ATOMIC_INIT(0);
106
3c50976f
KB		 107enum pqi_lockup_action {
108 NONE,
109 REBOOT,
110 PANIC
111};
112
113static enum pqi_lockup_action pqi_lockup_action = NONE;
114
115static struct {
116 enum pqi_lockup_action action;
117 char *name;
118} pqi_lockup_actions[] = {
119 {
120 .action = NONE,
121 .name = "none",
122 },
123 {
124 .action = REBOOT,
125 .name = "reboot",
126 },
127 {
128 .action = PANIC,
129 .name = "panic",
130 },
131};
132
6a50d6ad
KB		 133static unsigned int pqi_supported_event_types[] = {
134 PQI_EVENT_TYPE_HOTPLUG,
135 PQI_EVENT_TYPE_HARDWARE,
136 PQI_EVENT_TYPE_PHYSICAL_DEVICE,
137 PQI_EVENT_TYPE_LOGICAL_DEVICE,
4fd22c13 138 PQI_EVENT_TYPE_OFA,
6a50d6ad
KB		 139 PQI_EVENT_TYPE_AIO_STATE_CHANGE,
140 PQI_EVENT_TYPE_AIO_CONFIG_CHANGE,
141};
142
6c223761
KB		 143static int pqi_disable_device_id_wildcards;
144module_param_named(disable_device_id_wildcards,
cbe0c7b1 145 pqi_disable_device_id_wildcards, int, 0644);
6c223761
KB		 146MODULE_PARM_DESC(disable_device_id_wildcards,
147 "Disable device ID wildcards.");
148
5a259e32
KB		 149static int pqi_disable_heartbeat;
150module_param_named(disable_heartbeat,
151 pqi_disable_heartbeat, int, 0644);
152MODULE_PARM_DESC(disable_heartbeat,
153 "Disable heartbeat.");
154
155static int pqi_disable_ctrl_shutdown;
156module_param_named(disable_ctrl_shutdown,
157 pqi_disable_ctrl_shutdown, int, 0644);
158MODULE_PARM_DESC(disable_ctrl_shutdown,
159 "Disable controller shutdown when controller locked up.");
160
3c50976f
KB		 161static char *pqi_lockup_action_param;
162module_param_named(lockup_action,
163 pqi_lockup_action_param, charp, 0644);
164MODULE_PARM_DESC(lockup_action, "Action to take when controller locked up.\n"
165 "\t\tSupported: none, reboot, panic\n"
166 "\t\tDefault: none");
167
5e6a9760
GW		 168static int pqi_expose_ld_first;
169module_param_named(expose_ld_first,
170 pqi_expose_ld_first, int, 0644);
583891c9 171MODULE_PARM_DESC(expose_ld_first, "Expose logical drives before physical drives.");
5e6a9760 172
522bc026
DC		 173static int pqi_hide_vsep;
174module_param_named(hide_vsep,
175 pqi_hide_vsep, int, 0644);
583891c9 176MODULE_PARM_DESC(hide_vsep, "Hide the virtual SEP for direct attached drives.");
522bc026 177
cf15c3e7
MM		 178static int pqi_disable_managed_interrupts;
179module_param_named(disable_managed_interrupts,
180 pqi_disable_managed_interrupts, int, 0644);
181MODULE_PARM_DESC(disable_managed_interrupts,
182 "Disable the kernel automatically assigning SMP affinity to IRQs.");
183
6d567dfe
KB		 184static unsigned int pqi_ctrl_ready_timeout_secs;
185module_param_named(ctrl_ready_timeout,
186 pqi_ctrl_ready_timeout_secs, uint, 0644);
187MODULE_PARM_DESC(ctrl_ready_timeout,
188 "Timeout in seconds for driver to wait for controller ready.");
189
6c223761
KB		 190static char *raid_levels[] = {
191 "RAID-0",
192 "RAID-4",
193 "RAID-1(1+0)",
194 "RAID-5",
195 "RAID-5+1",
7a012c23
DB		 196 "RAID-6",
197 "RAID-1(Triple)",
6c223761
KB		 198};
199
200static char *pqi_raid_level_to_string(u8 raid_level)
201{
202 if (raid_level < ARRAY_SIZE(raid_levels))
203 return raid_levels[raid_level];
204
a9f93392 205 return "RAID UNKNOWN";
6c223761
KB		 206}
207
208#define SA_RAID_0 0
209#define SA_RAID_4 1
210#define SA_RAID_1 2 /* also used for RAID 10 */
211#define SA_RAID_5 3 /* also used for RAID 50 */
212#define SA_RAID_51 4
213#define SA_RAID_6 5 /* also used for RAID 60 */
7a012c23
DB		 214#define SA_RAID_TRIPLE 6 /* also used for RAID 1+0 Triple */
215#define SA_RAID_MAX SA_RAID_TRIPLE
6c223761
KB		 216#define SA_RAID_UNKNOWN 0xff
217
218static inline void pqi_scsi_done(struct scsi_cmnd *scmd)
219{
7561a7e4 220 pqi_prep_for_scsi_done(scmd);
0ca19080 221 scsi_done(scmd);
6c223761
KB		 222}
223
b6e2ef67 224static inline void pqi_disable_write_same(struct scsi_device *sdev)
6c223761 225{
b6e2ef67 226 sdev->no_write_same = 1;
6c223761
KB		 227}
228
6c223761 229static inline bool pqi_scsi3addr_equal(u8 *scsi3addr1, u8 *scsi3addr2)
6c223761 230{
6c223761 231 return memcmp(scsi3addr1, scsi3addr2, 8) == 0;
6c223761
KB		 232}
233
234static inline bool pqi_is_logical_device(struct pqi_scsi_dev *device)
235{
236 return !device->is_physical_device;
237}
238
bd10cf0b
KB		 239static inline bool pqi_is_external_raid_addr(u8 *scsi3addr)
240{
241 return scsi3addr[2] != 0;
242}
243
694c5d5b
KB		 244static inline bool pqi_ctrl_offline(struct pqi_ctrl_info *ctrl_info)
245{
246 return !ctrl_info->controller_online;
247}
248
6c223761
KB		 249static inline void pqi_check_ctrl_health(struct pqi_ctrl_info *ctrl_info)
250{
251 if (ctrl_info->controller_online)
252 if (!sis_is_firmware_running(ctrl_info))
5d1f03e6 253 pqi_take_ctrl_offline(ctrl_info, PQI_FIRMWARE_KERNEL_NOT_UP);
6c223761
KB		 254}
255
256static inline bool pqi_is_hba_lunid(u8 *scsi3addr)
257{
258 return pqi_scsi3addr_equal(scsi3addr, RAID_CTLR_LUNID);
259}
260
9ee5d6e9
MR		 261#define PQI_DRIVER_SCRATCH_PQI_MODE 0x1
262#define PQI_DRIVER_SCRATCH_FW_TRIAGE_SUPPORTED 0x2
263
583891c9 264static inline enum pqi_ctrl_mode pqi_get_ctrl_mode(struct pqi_ctrl_info *ctrl_info)
ff6abb73 265{
9ee5d6e9 266 return sis_read_driver_scratch(ctrl_info) & PQI_DRIVER_SCRATCH_PQI_MODE ? PQI_MODE : SIS_MODE;
ff6abb73
KB		 267}
268
269static inline void pqi_save_ctrl_mode(struct pqi_ctrl_info *ctrl_info,
270 enum pqi_ctrl_mode mode)
271{
9ee5d6e9
MR		 272 u32 driver_scratch;
273
274 driver_scratch = sis_read_driver_scratch(ctrl_info);
275
276 if (mode == PQI_MODE)
277 driver_scratch |= PQI_DRIVER_SCRATCH_PQI_MODE;
278 else
279 driver_scratch &= ~PQI_DRIVER_SCRATCH_PQI_MODE;
280
281 sis_write_driver_scratch(ctrl_info, driver_scratch);
282}
283
284static inline bool pqi_is_fw_triage_supported(struct pqi_ctrl_info *ctrl_info)
285{
286 return (sis_read_driver_scratch(ctrl_info) & PQI_DRIVER_SCRATCH_FW_TRIAGE_SUPPORTED) != 0;
287}
288
289static inline void pqi_save_fw_triage_setting(struct pqi_ctrl_info *ctrl_info, bool is_supported)
290{
291 u32 driver_scratch;
292
293 driver_scratch = sis_read_driver_scratch(ctrl_info);
294
295 if (is_supported)
296 driver_scratch |= PQI_DRIVER_SCRATCH_FW_TRIAGE_SUPPORTED;
297 else
298 driver_scratch &= ~PQI_DRIVER_SCRATCH_FW_TRIAGE_SUPPORTED;
299
300 sis_write_driver_scratch(ctrl_info, driver_scratch);
ff6abb73
KB		 301}
302
9fa82023
KB		 303static inline void pqi_ctrl_block_scan(struct pqi_ctrl_info *ctrl_info)
304{
305 ctrl_info->scan_blocked = true;
306 mutex_lock(&ctrl_info->scan_mutex);
307}
308
309static inline void pqi_ctrl_unblock_scan(struct pqi_ctrl_info *ctrl_info)
310{
311 ctrl_info->scan_blocked = false;
312 mutex_unlock(&ctrl_info->scan_mutex);
313}
314
315static inline bool pqi_ctrl_scan_blocked(struct pqi_ctrl_info *ctrl_info)
316{
317 return ctrl_info->scan_blocked;
318}
319
694c5d5b
KB		 320static inline void pqi_ctrl_block_device_reset(struct pqi_ctrl_info *ctrl_info)
321{
37f33181 322 mutex_lock(&ctrl_info->lun_reset_mutex);
694c5d5b
KB		 323}
324
37f33181 325static inline void pqi_ctrl_unblock_device_reset(struct pqi_ctrl_info *ctrl_info)
694c5d5b 326{
37f33181 327 mutex_unlock(&ctrl_info->lun_reset_mutex);
694c5d5b
KB		 328}
329
9fa82023
KB		 330static inline void pqi_scsi_block_requests(struct pqi_ctrl_info *ctrl_info)
331{
332 struct Scsi_Host *shost;
333 unsigned int num_loops;
334 int msecs_sleep;
335
336 shost = ctrl_info->scsi_host;
337
338 scsi_block_requests(shost);
339
340 num_loops = 0;
341 msecs_sleep = 20;
342 while (scsi_host_busy(shost)) {
343 num_loops++;
344 if (num_loops == 10)
345 msecs_sleep = 500;
346 msleep(msecs_sleep);
347 }
348}
349
350static inline void pqi_scsi_unblock_requests(struct pqi_ctrl_info *ctrl_info)
351{
352 scsi_unblock_requests(ctrl_info->scsi_host);
353}
354
355static inline void pqi_ctrl_busy(struct pqi_ctrl_info *ctrl_info)
356{
357 atomic_inc(&ctrl_info->num_busy_threads);
694c5d5b
KB		 358}
359
9fa82023 360static inline void pqi_ctrl_unbusy(struct pqi_ctrl_info *ctrl_info)
694c5d5b 361{
9fa82023 362 atomic_dec(&ctrl_info->num_busy_threads);
694c5d5b
KB		 363}
364
365static inline bool pqi_ctrl_blocked(struct pqi_ctrl_info *ctrl_info)
366{
367 return ctrl_info->block_requests;
368}
369
7561a7e4
KB		 370static inline void pqi_ctrl_block_requests(struct pqi_ctrl_info *ctrl_info)
371{
372 ctrl_info->block_requests = true;
7561a7e4
KB		 373}
374
375static inline void pqi_ctrl_unblock_requests(struct pqi_ctrl_info *ctrl_info)
376{
377 ctrl_info->block_requests = false;
378 wake_up_all(&ctrl_info->block_requests_wait);
7561a7e4
KB		 379}
380
ae0c189d 381static void pqi_wait_if_ctrl_blocked(struct pqi_ctrl_info *ctrl_info)
7561a7e4 382{
7561a7e4 383 if (!pqi_ctrl_blocked(ctrl_info))
ae0c189d 384 return;
7561a7e4
KB		 385
386 atomic_inc(&ctrl_info->num_blocked_threads);
ae0c189d
KB		 387 wait_event(ctrl_info->block_requests_wait,
388 !pqi_ctrl_blocked(ctrl_info));
7561a7e4 389 atomic_dec(&ctrl_info->num_blocked_threads);
7561a7e4
KB		 390}
391
18ff5f08
KB		 392#define PQI_QUIESCE_WARNING_TIMEOUT_SECS 10
393
7561a7e4
KB		 394static inline void pqi_ctrl_wait_until_quiesced(struct pqi_ctrl_info *ctrl_info)
395{
18ff5f08
KB		 396 unsigned long start_jiffies;
397 unsigned long warning_timeout;
398 bool displayed_warning;
399
400 displayed_warning = false;
401 start_jiffies = jiffies;
42dc0426 402 warning_timeout = (PQI_QUIESCE_WARNING_TIMEOUT_SECS * HZ) + start_jiffies;
18ff5f08 403
7561a7e4 404 while (atomic_read(&ctrl_info->num_busy_threads) >
18ff5f08
KB		 405 atomic_read(&ctrl_info->num_blocked_threads)) {
406 if (time_after(jiffies, warning_timeout)) {
407 dev_warn(&ctrl_info->pci_dev->dev,
408 "waiting %u seconds for driver activity to quiesce\n",
409 jiffies_to_msecs(jiffies - start_jiffies) / 1000);
410 displayed_warning = true;
42dc0426 411 warning_timeout = (PQI_QUIESCE_WARNING_TIMEOUT_SECS * HZ) + jiffies;
18ff5f08 412 }
7561a7e4 413 usleep_range(1000, 2000);
18ff5f08
KB		 414 }
415
416 if (displayed_warning)
417 dev_warn(&ctrl_info->pci_dev->dev,
418 "driver activity quiesced after waiting for %u seconds\n",
419 jiffies_to_msecs(jiffies - start_jiffies) / 1000);
7561a7e4
KB		 420}
421
03b288cf
KB		 422static inline bool pqi_device_offline(struct pqi_scsi_dev *device)
423{
424 return device->device_offline;
425}
426
2790cd4d 427static inline void pqi_ctrl_ofa_start(struct pqi_ctrl_info *ctrl_info)
7561a7e4 428{
2790cd4d 429 mutex_lock(&ctrl_info->ofa_mutex);
7561a7e4 430}
6c223761 431
2790cd4d 432static inline void pqi_ctrl_ofa_done(struct pqi_ctrl_info *ctrl_info)
4fd22c13 433{
2790cd4d 434 mutex_unlock(&ctrl_info->ofa_mutex);
4fd22c13
MR		 435}
436
2790cd4d 437static inline void pqi_wait_until_ofa_finished(struct pqi_ctrl_info *ctrl_info)
4fd22c13 438{
2790cd4d
KB		 439 mutex_lock(&ctrl_info->ofa_mutex);
440 mutex_unlock(&ctrl_info->ofa_mutex);
4fd22c13
MR		 441}
442
2790cd4d 443static inline bool pqi_ofa_in_progress(struct pqi_ctrl_info *ctrl_info)
4fd22c13 444{
2790cd4d 445 return mutex_is_locked(&ctrl_info->ofa_mutex);
4fd22c13
MR		 446}
447
1e46731e
MR		 448static inline void pqi_device_remove_start(struct pqi_scsi_dev *device)
449{
450 device->in_remove = true;
451}
452
1bdf6e93 453static inline bool pqi_device_in_remove(struct pqi_scsi_dev *device)
1e46731e 454{
1bdf6e93 455 return device->in_remove;
1e46731e
MR		 456}
457
2790cd4d 458static inline int pqi_event_type_to_event_index(unsigned int event_type)
0530736e 459{
2790cd4d
KB		 460 int index;
461
462 for (index = 0; index < ARRAY_SIZE(pqi_supported_event_types); index++)
463 if (event_type == pqi_supported_event_types[index])
464 return index;
465
466 return -1;
0530736e
KB		 467}
468
2790cd4d 469static inline bool pqi_is_supported_event(unsigned int event_type)
0530736e 470{
2790cd4d 471 return pqi_event_type_to_event_index(event_type) != -1;
0530736e
KB		 472}
473
583891c9
KB		 474static inline void pqi_schedule_rescan_worker_with_delay(struct pqi_ctrl_info *ctrl_info,
475 unsigned long delay)
5f310425
KB		 476{
477 if (pqi_ctrl_offline(ctrl_info))
478 return;
479
480 schedule_delayed_work(&ctrl_info->rescan_work, delay);
481}
482
6c223761
KB		 483static inline void pqi_schedule_rescan_worker(struct pqi_ctrl_info *ctrl_info)
484{
5f310425
KB		 485 pqi_schedule_rescan_worker_with_delay(ctrl_info, 0);
486}
487
42dc0426 488#define PQI_RESCAN_WORK_DELAY (10 * HZ)
5f310425 489
583891c9 490static inline void pqi_schedule_rescan_worker_delayed(struct pqi_ctrl_info *ctrl_info)
5f310425
KB		 491{
492 pqi_schedule_rescan_worker_with_delay(ctrl_info, PQI_RESCAN_WORK_DELAY);
6c223761
KB		 493}
494
061ef06a
KB		 495static inline void pqi_cancel_rescan_worker(struct pqi_ctrl_info *ctrl_info)
496{
497 cancel_delayed_work_sync(&ctrl_info->rescan_work);
498}
499
98f87667
KB		 500static inline u32 pqi_read_heartbeat_counter(struct pqi_ctrl_info *ctrl_info)
501{
502 if (!ctrl_info->heartbeat_counter)
503 return 0;
504
505 return readl(ctrl_info->heartbeat_counter);
506}
507
4fd22c13
MR		 508static inline u8 pqi_read_soft_reset_status(struct pqi_ctrl_info *ctrl_info)
509{
4fd22c13
MR		 510 return readb(ctrl_info->soft_reset_status);
511}
512
4ccc354b 513static inline void pqi_clear_soft_reset_status(struct pqi_ctrl_info *ctrl_info)
4fd22c13
MR		 514{
515 u8 status;
516
4fd22c13 517 status = pqi_read_soft_reset_status(ctrl_info);
4ccc354b 518 status &= ~PQI_SOFT_RESET_ABORT;
4fd22c13
MR		 519 writeb(status, ctrl_info->soft_reset_status);
520}
521
6c223761
KB		 522static int pqi_map_single(struct pci_dev *pci_dev,
523 struct pqi_sg_descriptor *sg_descriptor, void *buffer,
6917a9cc 524 size_t buffer_length, enum dma_data_direction data_direction)
6c223761
KB		 525{
526 dma_addr_t bus_address;
527
6917a9cc 528 if (!buffer || buffer_length == 0 || data_direction == DMA_NONE)
6c223761
KB		 529 return 0;
530
6917a9cc 531 bus_address = dma_map_single(&pci_dev->dev, buffer, buffer_length,
6c223761 532 data_direction);
6917a9cc 533 if (dma_mapping_error(&pci_dev->dev, bus_address))
6c223761
KB		 534 return -ENOMEM;
535
536 put_unaligned_le64((u64)bus_address, &sg_descriptor->address);
537 put_unaligned_le32(buffer_length, &sg_descriptor->length);
538 put_unaligned_le32(CISS_SG_LAST, &sg_descriptor->flags);
539
540 return 0;
541}
542
543static void pqi_pci_unmap(struct pci_dev *pci_dev,
544 struct pqi_sg_descriptor *descriptors, int num_descriptors,
6917a9cc 545 enum dma_data_direction data_direction)
6c223761
KB		 546{
547 int i;
548
6917a9cc 549 if (data_direction == DMA_NONE)
6c223761
KB		 550 return;
551
552 for (i = 0; i < num_descriptors; i++)
6917a9cc 553 dma_unmap_single(&pci_dev->dev,
6c223761
KB		 554 (dma_addr_t)get_unaligned_le64(&descriptors[i].address),
555 get_unaligned_le32(&descriptors[i].length),
556 data_direction);
557}
558
559static int pqi_build_raid_path_request(struct pqi_ctrl_info *ctrl_info,
560 struct pqi_raid_path_request *request, u8 cmd,
561 u8 *scsi3addr, void *buffer, size_t buffer_length,
6917a9cc 562 u16 vpd_page, enum dma_data_direction *dir)
6c223761
KB		 563{
564 u8 *cdb;
171c2865 565 size_t cdb_length = buffer_length;
6c223761
KB		 566
567 memset(request, 0, sizeof(*request));
568
569 request->header.iu_type = PQI_REQUEST_IU_RAID_PATH_IO;
570 put_unaligned_le16(offsetof(struct pqi_raid_path_request,
571 sg_descriptors[1]) - PQI_REQUEST_HEADER_LENGTH,
572 &request->header.iu_length);
573 put_unaligned_le32(buffer_length, &request->buffer_length);
574 memcpy(request->lun_number, scsi3addr, sizeof(request->lun_number));
575 request->task_attribute = SOP_TASK_ATTRIBUTE_SIMPLE;
576 request->additional_cdb_bytes_usage = SOP_ADDITIONAL_CDB_BYTES_0;
577
578 cdb = request->cdb;
579
580 switch (cmd) {
be76f906
DB		 581 case TEST_UNIT_READY:
582 request->data_direction = SOP_READ_FLAG;
583 cdb[0] = TEST_UNIT_READY;
584 break;
6c223761
KB		 585 case INQUIRY:
586 request->data_direction = SOP_READ_FLAG;
587 cdb[0] = INQUIRY;
588 if (vpd_page & VPD_PAGE) {
589 cdb[1] = 0x1;
590 cdb[2] = (u8)vpd_page;
591 }
171c2865 592 cdb[4] = (u8)cdb_length;
6c223761
KB		 593 break;
594 case CISS_REPORT_LOG:
595 case CISS_REPORT_PHYS:
596 request->data_direction = SOP_READ_FLAG;
597 cdb[0] = cmd;
28ca6d87
MM		 598 if (cmd == CISS_REPORT_PHYS) {
599 if (ctrl_info->rpl_extended_format_4_5_supported)
600 cdb[1] = CISS_REPORT_PHYS_FLAG_EXTENDED_FORMAT_4;
601 else
602 cdb[1] = CISS_REPORT_PHYS_FLAG_EXTENDED_FORMAT_2;
603 } else {
f6cc2a77 604 cdb[1] = ctrl_info->ciss_report_log_flags;
28ca6d87 605 }
171c2865 606 put_unaligned_be32(cdb_length, &cdb[6]);
6c223761
KB		 607 break;
608 case CISS_GET_RAID_MAP:
609 request->data_direction = SOP_READ_FLAG;
610 cdb[0] = CISS_READ;
611 cdb[1] = CISS_GET_RAID_MAP;
171c2865 612 put_unaligned_be32(cdb_length, &cdb[6]);
6c223761 613 break;
58322fe0 614 case SA_FLUSH_CACHE:
ae0c189d 615 request->header.driver_flags = PQI_DRIVER_NONBLOCKABLE_REQUEST;
6c223761
KB		 616 request->data_direction = SOP_WRITE_FLAG;
617 cdb[0] = BMIC_WRITE;
58322fe0 618 cdb[6] = BMIC_FLUSH_CACHE;
171c2865 619 put_unaligned_be16(cdb_length, &cdb[7]);
6c223761 620 break;
171c2865
DC		 621 case BMIC_SENSE_DIAG_OPTIONS:
622 cdb_length = 0;
df561f66 623 fallthrough;
6c223761
KB		 624 case BMIC_IDENTIFY_CONTROLLER:
625 case BMIC_IDENTIFY_PHYSICAL_DEVICE:
6d90615f 626 case BMIC_SENSE_SUBSYSTEM_INFORMATION:
f6cc2a77 627 case BMIC_SENSE_FEATURE:
6c223761
KB		 628 request->data_direction = SOP_READ_FLAG;
629 cdb[0] = BMIC_READ;
630 cdb[6] = cmd;
171c2865 631 put_unaligned_be16(cdb_length, &cdb[7]);
6c223761 632 break;
171c2865
DC		 633 case BMIC_SET_DIAG_OPTIONS:
634 cdb_length = 0;
df561f66 635 fallthrough;
6c223761
KB		 636 case BMIC_WRITE_HOST_WELLNESS:
637 request->data_direction = SOP_WRITE_FLAG;
638 cdb[0] = BMIC_WRITE;
639 cdb[6] = cmd;
171c2865 640 put_unaligned_be16(cdb_length, &cdb[7]);
6c223761 641 break;
3d46a59a
DB		 642 case BMIC_CSMI_PASSTHRU:
643 request->data_direction = SOP_BIDIRECTIONAL;
644 cdb[0] = BMIC_WRITE;
645 cdb[5] = CSMI_CC_SAS_SMP_PASSTHRU;
646 cdb[6] = cmd;
647 put_unaligned_be16(cdb_length, &cdb[7]);
6c223761
KB		 648 break;
649 default:
9e68cccc 650 dev_err(&ctrl_info->pci_dev->dev, "unknown command 0x%c\n", cmd);
6c223761
KB		 651 break;
652 }
653
654 switch (request->data_direction) {
655 case SOP_READ_FLAG:
6917a9cc 656 *dir = DMA_FROM_DEVICE;
6c223761
KB		 657 break;
658 case SOP_WRITE_FLAG:
6917a9cc 659 *dir = DMA_TO_DEVICE;
6c223761
KB		 660 break;
661 case SOP_NO_DIRECTION_FLAG:
6917a9cc 662 *dir = DMA_NONE;
6c223761
KB		 663 break;
664 default:
6917a9cc 665 *dir = DMA_BIDIRECTIONAL;
6c223761
KB		 666 break;
667 }
668
6c223761 669 return pqi_map_single(ctrl_info->pci_dev, &request->sg_descriptors[0],
6917a9cc 670 buffer, buffer_length, *dir);
6c223761
KB		 671}
672
376fb880
KB		 673static inline void pqi_reinit_io_request(struct pqi_io_request *io_request)
674{
675 io_request->scmd = NULL;
676 io_request->status = 0;
677 io_request->error_info = NULL;
678 io_request->raid_bypass = false;
679}
680
b27ac2fa 681static inline struct pqi_io_request *pqi_alloc_io_request(struct pqi_ctrl_info *ctrl_info, struct scsi_cmnd *scmd)
6c223761
KB		 682{
683 struct pqi_io_request *io_request;
b27ac2fa 684 u16 i;
6c223761 685
b27ac2fa
DB		 686 if (scmd) { /* SML I/O request */
687 u32 blk_tag = blk_mq_unique_tag(scsi_cmd_to_rq(scmd));
688
689 i = blk_mq_unique_tag_to_tag(blk_tag);
6c223761 690 io_request = &ctrl_info->io_request_pool[i];
b27ac2fa
DB		 691 if (atomic_inc_return(&io_request->refcount) > 1) {
692 atomic_dec(&io_request->refcount);
693 return NULL;
694 }
695 } else { /* IOCTL or driver internal request */
696 /*
697 * benignly racy - may have to wait for an open slot.
698 * command slot range is scsi_ml_can_queue -
699 * [scsi_ml_can_queue + (PQI_RESERVED_IO_SLOTS - 1)]
700 */
701 i = 0;
702 while (1) {
703 io_request = &ctrl_info->io_request_pool[ctrl_info->scsi_ml_can_queue + i];
704 if (atomic_inc_return(&io_request->refcount) == 1)
705 break;
706 atomic_dec(&io_request->refcount);
707 i = (i + 1) % PQI_RESERVED_IO_SLOTS;
708 }
6c223761
KB		 709 }
710
376fb880 711 pqi_reinit_io_request(io_request);
6c223761
KB		 712
713 return io_request;
714}
715
716static void pqi_free_io_request(struct pqi_io_request *io_request)
717{
718 atomic_dec(&io_request->refcount);
719}
720
02133b68 721static int pqi_send_scsi_raid_request(struct pqi_ctrl_info *ctrl_info, u8 cmd,
694c5d5b 722 u8 *scsi3addr, void *buffer, size_t buffer_length, u16 vpd_page,
ae0c189d 723 struct pqi_raid_error_info *error_info)
6c223761
KB		 724{
725 int rc;
6c223761 726 struct pqi_raid_path_request request;
694c5d5b 727 enum dma_data_direction dir;
6c223761 728
583891c9
KB		 729 rc = pqi_build_raid_path_request(ctrl_info, &request, cmd, scsi3addr,
730 buffer, buffer_length, vpd_page, &dir);
6c223761
KB		 731 if (rc)
732 return rc;
733
ae0c189d 734 rc = pqi_submit_raid_request_synchronous(ctrl_info, &request.header, 0, error_info);
6c223761 735
6917a9cc 736 pqi_pci_unmap(ctrl_info->pci_dev, request.sg_descriptors, 1, dir);
694c5d5b 737
6c223761
KB		 738 return rc;
739}
740
694c5d5b 741/* helper functions for pqi_send_scsi_raid_request */
02133b68
DC		 742
743static inline int pqi_send_ctrl_raid_request(struct pqi_ctrl_info *ctrl_info,
694c5d5b 744 u8 cmd, void *buffer, size_t buffer_length)
6c223761 745{
02133b68 746 return pqi_send_scsi_raid_request(ctrl_info, cmd, RAID_CTLR_LUNID,
ae0c189d 747 buffer, buffer_length, 0, NULL);
02133b68 748}
6c223761 749
02133b68 750static inline int pqi_send_ctrl_raid_with_error(struct pqi_ctrl_info *ctrl_info,
694c5d5b
KB		 751 u8 cmd, void *buffer, size_t buffer_length,
752 struct pqi_raid_error_info *error_info)
02133b68
DC		 753{
754 return pqi_send_scsi_raid_request(ctrl_info, cmd, RAID_CTLR_LUNID,
ae0c189d 755 buffer, buffer_length, 0, error_info);
02133b68 756}
6c223761 757
02133b68 758static inline int pqi_identify_controller(struct pqi_ctrl_info *ctrl_info,
694c5d5b 759 struct bmic_identify_controller *buffer)
02133b68
DC		 760{
761 return pqi_send_ctrl_raid_request(ctrl_info, BMIC_IDENTIFY_CONTROLLER,
694c5d5b 762 buffer, sizeof(*buffer));
02133b68
DC		 763}
764
6d90615f 765static inline int pqi_sense_subsystem_info(struct pqi_ctrl_info *ctrl_info,
694c5d5b 766 struct bmic_sense_subsystem_info *sense_info)
6d90615f
MB		 767{
768 return pqi_send_ctrl_raid_request(ctrl_info,
694c5d5b
KB		 769 BMIC_SENSE_SUBSYSTEM_INFORMATION, sense_info,
770 sizeof(*sense_info));
6d90615f
MB		 771}
772
02133b68 773static inline int pqi_scsi_inquiry(struct pqi_ctrl_info *ctrl_info,
6c223761 774 u8 *scsi3addr, u16 vpd_page, void *buffer, size_t buffer_length)
02133b68
DC		 775{
776 return pqi_send_scsi_raid_request(ctrl_info, INQUIRY, scsi3addr,
ae0c189d 777 buffer, buffer_length, vpd_page, NULL);
6c223761
KB		 778}
779
780static int pqi_identify_physical_device(struct pqi_ctrl_info *ctrl_info,
781 struct pqi_scsi_dev *device,
694c5d5b 782 struct bmic_identify_physical_device *buffer, size_t buffer_length)
6c223761
KB		 783{
784 int rc;
6917a9cc 785 enum dma_data_direction dir;
6c223761
KB		 786 u16 bmic_device_index;
787 struct pqi_raid_path_request request;
788
789 rc = pqi_build_raid_path_request(ctrl_info, &request,
790 BMIC_IDENTIFY_PHYSICAL_DEVICE, RAID_CTLR_LUNID, buffer,
6917a9cc 791 buffer_length, 0, &dir);
6c223761
KB		 792 if (rc)
793 return rc;
794
795 bmic_device_index = CISS_GET_DRIVE_NUMBER(device->scsi3addr);
796 request.cdb[2] = (u8)bmic_device_index;
797 request.cdb[9] = (u8)(bmic_device_index >> 8);
798
ae0c189d 799 rc = pqi_submit_raid_request_synchronous(ctrl_info, &request.header, 0, NULL);
6c223761 800
6917a9cc 801 pqi_pci_unmap(ctrl_info->pci_dev, request.sg_descriptors, 1, dir);
694c5d5b 802
6c223761
KB		 803 return rc;
804}
805
f6cc2a77
KB		 806static inline u32 pqi_aio_limit_to_bytes(__le16 *limit)
807{
808 u32 bytes;
809
810 bytes = get_unaligned_le16(limit);
811 if (bytes == 0)
812 bytes = ~0;
813 else
814 bytes *= 1024;
815
816 return bytes;
817}
818
819#pragma pack(1)
820
821struct bmic_sense_feature_buffer {
822 struct bmic_sense_feature_buffer_header header;
823 struct bmic_sense_feature_io_page_aio_subpage aio_subpage;
824};
825
826#pragma pack()
827
828#define MINIMUM_AIO_SUBPAGE_BUFFER_LENGTH \
829 offsetofend(struct bmic_sense_feature_buffer, \
830 aio_subpage.max_write_raid_1_10_3drive)
831
832#define MINIMUM_AIO_SUBPAGE_LENGTH \
833 (offsetofend(struct bmic_sense_feature_io_page_aio_subpage, \
834 max_write_raid_1_10_3drive) - \
835 sizeof_field(struct bmic_sense_feature_io_page_aio_subpage, header))
836
837static int pqi_get_advanced_raid_bypass_config(struct pqi_ctrl_info *ctrl_info)
838{
839 int rc;
840 enum dma_data_direction dir;
841 struct pqi_raid_path_request request;
842 struct bmic_sense_feature_buffer *buffer;
843
844 buffer = kmalloc(sizeof(*buffer), GFP_KERNEL);
845 if (!buffer)
846 return -ENOMEM;
847
583891c9
KB		 848 rc = pqi_build_raid_path_request(ctrl_info, &request, BMIC_SENSE_FEATURE, RAID_CTLR_LUNID,
849 buffer, sizeof(*buffer), 0, &dir);
f6cc2a77
KB		 850 if (rc)
851 goto error;
852
853 request.cdb[2] = BMIC_SENSE_FEATURE_IO_PAGE;
854 request.cdb[3] = BMIC_SENSE_FEATURE_IO_PAGE_AIO_SUBPAGE;
855
ae0c189d 856 rc = pqi_submit_raid_request_synchronous(ctrl_info, &request.header, 0, NULL);
6c223761 857
6917a9cc 858 pqi_pci_unmap(ctrl_info->pci_dev, request.sg_descriptors, 1, dir);
694c5d5b 859
f6cc2a77
KB		 860 if (rc)
861 goto error;
862
863 if (buffer->header.page_code != BMIC_SENSE_FEATURE_IO_PAGE ||
864 buffer->header.subpage_code !=
865 BMIC_SENSE_FEATURE_IO_PAGE_AIO_SUBPAGE ||
866 get_unaligned_le16(&buffer->header.buffer_length) <
867 MINIMUM_AIO_SUBPAGE_BUFFER_LENGTH ||
868 buffer->aio_subpage.header.page_code !=
869 BMIC_SENSE_FEATURE_IO_PAGE ||
870 buffer->aio_subpage.header.subpage_code !=
871 BMIC_SENSE_FEATURE_IO_PAGE_AIO_SUBPAGE ||
872 get_unaligned_le16(&buffer->aio_subpage.header.page_length) <
873 MINIMUM_AIO_SUBPAGE_LENGTH) {
874 goto error;
875 }
876
877 ctrl_info->max_transfer_encrypted_sas_sata =
878 pqi_aio_limit_to_bytes(
879 &buffer->aio_subpage.max_transfer_encrypted_sas_sata);
880
881 ctrl_info->max_transfer_encrypted_nvme =
882 pqi_aio_limit_to_bytes(
883 &buffer->aio_subpage.max_transfer_encrypted_nvme);
884
885 ctrl_info->max_write_raid_5_6 =
886 pqi_aio_limit_to_bytes(
887 &buffer->aio_subpage.max_write_raid_5_6);
888
889 ctrl_info->max_write_raid_1_10_2drive =
890 pqi_aio_limit_to_bytes(
891 &buffer->aio_subpage.max_write_raid_1_10_2drive);
892
893 ctrl_info->max_write_raid_1_10_3drive =
894 pqi_aio_limit_to_bytes(
895 &buffer->aio_subpage.max_write_raid_1_10_3drive);
896
897error:
898 kfree(buffer);
899
6c223761
KB		 900 return rc;
901}
902
58322fe0
KB		 903static int pqi_flush_cache(struct pqi_ctrl_info *ctrl_info,
904 enum bmic_flush_cache_shutdown_event shutdown_event)
6c223761
KB		 905{
906 int rc;
58322fe0 907 struct bmic_flush_cache *flush_cache;
6c223761 908
58322fe0
KB		 909 flush_cache = kzalloc(sizeof(*flush_cache), GFP_KERNEL);
910 if (!flush_cache)
6c223761
KB		 911 return -ENOMEM;
912
58322fe0
KB		 913 flush_cache->shutdown_event = shutdown_event;
914
02133b68
DC		 915 rc = pqi_send_ctrl_raid_request(ctrl_info, SA_FLUSH_CACHE, flush_cache,
916 sizeof(*flush_cache));
6c223761 917
58322fe0 918 kfree(flush_cache);
6c223761
KB		 919
920 return rc;
921}
922
3d46a59a
DB		 923int pqi_csmi_smp_passthru(struct pqi_ctrl_info *ctrl_info,
924 struct bmic_csmi_smp_passthru_buffer *buffer, size_t buffer_length,
925 struct pqi_raid_error_info *error_info)
926{
927 return pqi_send_ctrl_raid_with_error(ctrl_info, BMIC_CSMI_PASSTHRU,
928 buffer, buffer_length, error_info);
929}
171c2865 930
694c5d5b 931#define PQI_FETCH_PTRAID_DATA (1 << 31)
171c2865
DC		 932
933static int pqi_set_diag_rescan(struct pqi_ctrl_info *ctrl_info)
6c223761
KB		 934{
935 int rc;
171c2865 936 struct bmic_diag_options *diag;
6c223761 937
171c2865
DC		 938 diag = kzalloc(sizeof(*diag), GFP_KERNEL);
939 if (!diag)
940 return -ENOMEM;
941
02133b68 942 rc = pqi_send_ctrl_raid_request(ctrl_info, BMIC_SENSE_DIAG_OPTIONS,
694c5d5b 943 diag, sizeof(*diag));
6c223761 944 if (rc)
171c2865 945 goto out;
6c223761 946
171c2865
DC		 947 diag->options |= cpu_to_le32(PQI_FETCH_PTRAID_DATA);
948
694c5d5b
KB		 949 rc = pqi_send_ctrl_raid_request(ctrl_info, BMIC_SET_DIAG_OPTIONS, diag,
950 sizeof(*diag));
951
171c2865
DC		 952out:
953 kfree(diag);
6c223761 954
6c223761
KB		 955 return rc;
956}
957
02133b68 958static inline int pqi_write_host_wellness(struct pqi_ctrl_info *ctrl_info,
6c223761
KB		 959 void *buffer, size_t buffer_length)
960{
02133b68 961 return pqi_send_ctrl_raid_request(ctrl_info, BMIC_WRITE_HOST_WELLNESS,
694c5d5b 962 buffer, buffer_length);
6c223761
KB		 963}
964
965#pragma pack(1)
966
967struct bmic_host_wellness_driver_version {
968 u8 start_tag[4];
969 u8 driver_version_tag[2];
970 __le16 driver_version_length;
971 char driver_version[32];
b2346b50 972 u8 dont_write_tag[2];
6c223761
KB		 973 u8 end_tag[2];
974};
975
976#pragma pack()
977
978static int pqi_write_driver_version_to_host_wellness(
979 struct pqi_ctrl_info *ctrl_info)
980{
981 int rc;
982 struct bmic_host_wellness_driver_version *buffer;
983 size_t buffer_length;
984
985 buffer_length = sizeof(*buffer);
986
987 buffer = kmalloc(buffer_length, GFP_KERNEL);
988 if (!buffer)
989 return -ENOMEM;
990
991 buffer->start_tag[0] = '<';
992 buffer->start_tag[1] = 'H';
993 buffer->start_tag[2] = 'W';
994 buffer->start_tag[3] = '>';
995 buffer->driver_version_tag[0] = 'D';
996 buffer->driver_version_tag[1] = 'V';
997 put_unaligned_le16(sizeof(buffer->driver_version),
998 &buffer->driver_version_length);
061ef06a 999 strncpy(buffer->driver_version, "Linux " DRIVER_VERSION,
6c223761
KB		 1000 sizeof(buffer->driver_version) - 1);
1001 buffer->driver_version[sizeof(buffer->driver_version) - 1] = '\0';
b2346b50
MR		 1002 buffer->dont_write_tag[0] = 'D';
1003 buffer->dont_write_tag[1] = 'W';
6c223761
KB		 1004 buffer->end_tag[0] = 'Z';
1005 buffer->end_tag[1] = 'Z';
1006
1007 rc = pqi_write_host_wellness(ctrl_info, buffer, buffer_length);
1008
1009 kfree(buffer);
1010
1011 return rc;
1012}
1013
1014#pragma pack(1)
1015
1016struct bmic_host_wellness_time {
1017 u8 start_tag[4];
1018 u8 time_tag[2];
1019 __le16 time_length;
1020 u8 time[8];
1021 u8 dont_write_tag[2];
1022 u8 end_tag[2];
1023};
1024
1025#pragma pack()
1026
1027static int pqi_write_current_time_to_host_wellness(
1028 struct pqi_ctrl_info *ctrl_info)
1029{
1030 int rc;
1031 struct bmic_host_wellness_time *buffer;
1032 size_t buffer_length;
1033 time64_t local_time;
1034 unsigned int year;
ed10858e 1035 struct tm tm;
6c223761
KB		 1036
1037 buffer_length = sizeof(*buffer);
1038
1039 buffer = kmalloc(buffer_length, GFP_KERNEL);
1040 if (!buffer)
1041 return -ENOMEM;
1042
1043 buffer->start_tag[0] = '<';
1044 buffer->start_tag[1] = 'H';
1045 buffer->start_tag[2] = 'W';
1046 buffer->start_tag[3] = '>';
1047 buffer->time_tag[0] = 'T';
1048 buffer->time_tag[1] = 'D';
1049 put_unaligned_le16(sizeof(buffer->time),
1050 &buffer->time_length);
1051
ed10858e
AB		 1052 local_time = ktime_get_real_seconds();
1053 time64_to_tm(local_time, -sys_tz.tz_minuteswest * 60, &tm);
6c223761
KB		 1054 year = tm.tm_year + 1900;
1055
1056 buffer->time[0] = bin2bcd(tm.tm_hour);
1057 buffer->time[1] = bin2bcd(tm.tm_min);
1058 buffer->time[2] = bin2bcd(tm.tm_sec);
1059 buffer->time[3] = 0;
1060 buffer->time[4] = bin2bcd(tm.tm_mon + 1);
1061 buffer->time[5] = bin2bcd(tm.tm_mday);
1062 buffer->time[6] = bin2bcd(year / 100);
1063 buffer->time[7] = bin2bcd(year % 100);
1064
1065 buffer->dont_write_tag[0] = 'D';
1066 buffer->dont_write_tag[1] = 'W';
1067 buffer->end_tag[0] = 'Z';
1068 buffer->end_tag[1] = 'Z';
1069
1070 rc = pqi_write_host_wellness(ctrl_info, buffer, buffer_length);
1071
1072 kfree(buffer);
1073
1074 return rc;
1075}
1076
42dc0426 1077#define PQI_UPDATE_TIME_WORK_INTERVAL (24UL * 60 * 60 * HZ)
6c223761
KB		 1078
1079static void pqi_update_time_worker(struct work_struct *work)
1080{
1081 int rc;
1082 struct pqi_ctrl_info *ctrl_info;
1083
1084 ctrl_info = container_of(to_delayed_work(work), struct pqi_ctrl_info,
1085 update_time_work);
1086
6c223761
KB		 1087 rc = pqi_write_current_time_to_host_wellness(ctrl_info);
1088 if (rc)
1089 dev_warn(&ctrl_info->pci_dev->dev,
1090 "error updating time on controller\n");
1091
1092 schedule_delayed_work(&ctrl_info->update_time_work,
1093 PQI_UPDATE_TIME_WORK_INTERVAL);
1094}
1095
583891c9 1096static inline void pqi_schedule_update_time_worker(struct pqi_ctrl_info *ctrl_info)
6c223761 1097{
4fbebf1a 1098 schedule_delayed_work(&ctrl_info->update_time_work, 0);
061ef06a
KB		 1099}
1100
583891c9 1101static inline void pqi_cancel_update_time_worker(struct pqi_ctrl_info *ctrl_info)
061ef06a 1102{
061ef06a 1103 cancel_delayed_work_sync(&ctrl_info->update_time_work);
6c223761
KB		 1104}
1105
583891c9
KB		 1106static inline int pqi_report_luns(struct pqi_ctrl_info *ctrl_info, u8 cmd, void *buffer,
1107 size_t buffer_length)
6c223761 1108{
583891c9 1109 return pqi_send_ctrl_raid_request(ctrl_info, cmd, buffer, buffer_length);
6c223761
KB		 1110}
1111
583891c9 1112static int pqi_report_phys_logical_luns(struct pqi_ctrl_info *ctrl_info, u8 cmd, void **buffer)
6c223761
KB		 1113{
1114 int rc;
1115 size_t lun_list_length;
1116 size_t lun_data_length;
1117 size_t new_lun_list_length;
1118 void *lun_data = NULL;
1119 struct report_lun_header *report_lun_header;
1120
1121 report_lun_header = kmalloc(sizeof(*report_lun_header), GFP_KERNEL);
1122 if (!report_lun_header) {
1123 rc = -ENOMEM;
1124 goto out;
1125 }
1126
583891c9 1127 rc = pqi_report_luns(ctrl_info, cmd, report_lun_header, sizeof(*report_lun_header));
6c223761
KB		 1128 if (rc)
1129 goto out;
1130
1131 lun_list_length = get_unaligned_be32(&report_lun_header->list_length);
1132
1133again:
1134 lun_data_length = sizeof(struct report_lun_header) + lun_list_length;
1135
1136 lun_data = kmalloc(lun_data_length, GFP_KERNEL);
1137 if (!lun_data) {
1138 rc = -ENOMEM;
1139 goto out;
1140 }
1141
1142 if (lun_list_length == 0) {
1143 memcpy(lun_data, report_lun_header, sizeof(*report_lun_header));
1144 goto out;
1145 }
1146
1147 rc = pqi_report_luns(ctrl_info, cmd, lun_data, lun_data_length);
1148 if (rc)
1149 goto out;
1150
583891c9
KB		 1151 new_lun_list_length =
1152 get_unaligned_be32(&((struct report_lun_header *)lun_data)->list_length);
6c223761
KB		 1153
1154 if (new_lun_list_length > lun_list_length) {
1155 lun_list_length = new_lun_list_length;
1156 kfree(lun_data);
1157 goto again;
1158 }
1159
1160out:
1161 kfree(report_lun_header);
1162
1163 if (rc) {
1164 kfree(lun_data);
1165 lun_data = NULL;
1166 }
1167
1168 *buffer = lun_data;
1169
1170 return rc;
1171}
1172
583891c9 1173static inline int pqi_report_phys_luns(struct pqi_ctrl_info *ctrl_info, void **buffer)
6c223761 1174{
28ca6d87
MM		 1175 int rc;
1176 unsigned int i;
1177 u8 rpl_response_format;
1178 u32 num_physicals;
1179 size_t rpl_16byte_wwid_list_length;
1180 void *rpl_list;
1181 struct report_lun_header *rpl_header;
1182 struct report_phys_lun_8byte_wwid_list *rpl_8byte_wwid_list;
1183 struct report_phys_lun_16byte_wwid_list *rpl_16byte_wwid_list;
1184
1185 rc = pqi_report_phys_logical_luns(ctrl_info, CISS_REPORT_PHYS, &rpl_list);
1186 if (rc)
1187 return rc;
1188
1189 if (ctrl_info->rpl_extended_format_4_5_supported) {
1190 rpl_header = rpl_list;
1191 rpl_response_format = rpl_header->flags & CISS_REPORT_PHYS_FLAG_EXTENDED_FORMAT_MASK;
1192 if (rpl_response_format == CISS_REPORT_PHYS_FLAG_EXTENDED_FORMAT_4) {
1193 *buffer = rpl_list;
1194 return 0;
1195 } else if (rpl_response_format != CISS_REPORT_PHYS_FLAG_EXTENDED_FORMAT_2) {
1196 dev_err(&ctrl_info->pci_dev->dev,
1197 "RPL returned unsupported data format %u\n",
1198 rpl_response_format);
1199 return -EINVAL;
1200 } else {
1201 dev_warn(&ctrl_info->pci_dev->dev,
1202 "RPL returned extended format 2 instead of 4\n");
1203 }
1204 }
1205
1206 rpl_8byte_wwid_list = rpl_list;
1207 num_physicals = get_unaligned_be32(&rpl_8byte_wwid_list->header.list_length) / sizeof(rpl_8byte_wwid_list->lun_entries[0]);
1208 rpl_16byte_wwid_list_length = sizeof(struct report_lun_header) + (num_physicals * sizeof(struct report_phys_lun_16byte_wwid));
1209
1210 rpl_16byte_wwid_list = kmalloc(rpl_16byte_wwid_list_length, GFP_KERNEL);
1211 if (!rpl_16byte_wwid_list)
1212 return -ENOMEM;
1213
1214 put_unaligned_be32(num_physicals * sizeof(struct report_phys_lun_16byte_wwid),
1215 &rpl_16byte_wwid_list->header.list_length);
1216 rpl_16byte_wwid_list->header.flags = rpl_8byte_wwid_list->header.flags;
1217
1218 for (i = 0; i < num_physicals; i++) {
1219 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		 1220 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));
1221 memset(&rpl_16byte_wwid_list->lun_entries[i].wwid[8], 0, 8);
28ca6d87
MM		 1222 rpl_16byte_wwid_list->lun_entries[i].device_type = rpl_8byte_wwid_list->lun_entries[i].device_type;
1223 rpl_16byte_wwid_list->lun_entries[i].device_flags = rpl_8byte_wwid_list->lun_entries[i].device_flags;
1224 rpl_16byte_wwid_list->lun_entries[i].lun_count = rpl_8byte_wwid_list->lun_entries[i].lun_count;
1225 rpl_16byte_wwid_list->lun_entries[i].redundant_paths = rpl_8byte_wwid_list->lun_entries[i].redundant_paths;
1226 rpl_16byte_wwid_list->lun_entries[i].aio_handle = rpl_8byte_wwid_list->lun_entries[i].aio_handle;
1227 }
1228
1229 kfree(rpl_8byte_wwid_list);
1230 *buffer = rpl_16byte_wwid_list;
1231
1232 return 0;
6c223761
KB		 1233}
1234
583891c9 1235static inline int pqi_report_logical_luns(struct pqi_ctrl_info *ctrl_info, void **buffer)
6c223761
KB		 1236{
1237 return pqi_report_phys_logical_luns(ctrl_info, CISS_REPORT_LOG, buffer);
1238}
1239
1240static int pqi_get_device_lists(struct pqi_ctrl_info *ctrl_info,
28ca6d87
MM		 1241 struct report_phys_lun_16byte_wwid_list **physdev_list,
1242 struct report_log_lun_list **logdev_list)
6c223761
KB		 1243{
1244 int rc;
1245 size_t logdev_list_length;
1246 size_t logdev_data_length;
28ca6d87
MM		 1247 struct report_log_lun_list *internal_logdev_list;
1248 struct report_log_lun_list *logdev_data;
6c223761
KB		 1249 struct report_lun_header report_lun_header;
1250
1251 rc = pqi_report_phys_luns(ctrl_info, (void **)physdev_list);
1252 if (rc)
1253 dev_err(&ctrl_info->pci_dev->dev,
1254 "report physical LUNs failed\n");
1255
1256 rc = pqi_report_logical_luns(ctrl_info, (void **)logdev_list);
1257 if (rc)
1258 dev_err(&ctrl_info->pci_dev->dev,
1259 "report logical LUNs failed\n");
1260
1261 /*
ead82126
GS		 1262 * Tack the controller itself onto the end of the logical device list
1263 * by adding a list entry that is all zeros.
6c223761
KB		 1264 */
1265
1266 logdev_data = *logdev_list;
1267
1268 if (logdev_data) {
1269 logdev_list_length =
1270 get_unaligned_be32(&logdev_data->header.list_length);
1271 } else {
1272 memset(&report_lun_header, 0, sizeof(report_lun_header));
1273 logdev_data =
28ca6d87 1274 (struct report_log_lun_list *)&report_lun_header;
6c223761
KB		 1275 logdev_list_length = 0;
1276 }
1277
1278 logdev_data_length = sizeof(struct report_lun_header) +
1279 logdev_list_length;
1280
1281 internal_logdev_list = kmalloc(logdev_data_length +
28ca6d87 1282 sizeof(struct report_log_lun), GFP_KERNEL);
6c223761
KB		 1283 if (!internal_logdev_list) {
1284 kfree(*logdev_list);
1285 *logdev_list = NULL;
1286 return -ENOMEM;
1287 }
1288
1289 memcpy(internal_logdev_list, logdev_data, logdev_data_length);
1290 memset((u8 *)internal_logdev_list + logdev_data_length, 0,
28ca6d87 1291 sizeof(struct report_log_lun));
6c223761 1292 put_unaligned_be32(logdev_list_length +
28ca6d87 1293 sizeof(struct report_log_lun),
6c223761
KB		 1294 &internal_logdev_list->header.list_length);
1295
1296 kfree(*logdev_list);
1297 *logdev_list = internal_logdev_list;
1298
1299 return 0;
1300}
1301
1302static inline void pqi_set_bus_target_lun(struct pqi_scsi_dev *device,
1303 int bus, int target, int lun)
1304{
1305 device->bus = bus;
1306 device->target = target;
1307 device->lun = lun;
1308}
1309
1310static void pqi_assign_bus_target_lun(struct pqi_scsi_dev *device)
1311{
1312 u8 *scsi3addr;
1313 u32 lunid;
bd10cf0b
KB		 1314 int bus;
1315 int target;
1316 int lun;
6c223761
KB		 1317
1318 scsi3addr = device->scsi3addr;
1319 lunid = get_unaligned_le32(scsi3addr);
1320
1321 if (pqi_is_hba_lunid(scsi3addr)) {
1322 /* The specified device is the controller. */
1323 pqi_set_bus_target_lun(device, PQI_HBA_BUS, 0, lunid & 0x3fff);
1324 device->target_lun_valid = true;
1325 return;
1326 }
1327
1328 if (pqi_is_logical_device(device)) {
bd10cf0b
KB		 1329 if (device->is_external_raid_device) {
1330 bus = PQI_EXTERNAL_RAID_VOLUME_BUS;
1331 target = (lunid >> 16) & 0x3fff;
1332 lun = lunid & 0xff;
1333 } else {
1334 bus = PQI_RAID_VOLUME_BUS;
1335 target = 0;
1336 lun = lunid & 0x3fff;
1337 }
1338 pqi_set_bus_target_lun(device, bus, target, lun);
6c223761
KB		 1339 device->target_lun_valid = true;
1340 return;
1341 }
1342
1343 /*
1344 * Defer target and LUN assignment for non-controller physical devices
1345 * because the SAS transport layer will make these assignments later.
1346 */
1347 pqi_set_bus_target_lun(device, PQI_PHYSICAL_DEVICE_BUS, 0, 0);
1348}
1349
1350static void pqi_get_raid_level(struct pqi_ctrl_info *ctrl_info,
1351 struct pqi_scsi_dev *device)
1352{
1353 int rc;
1354 u8 raid_level;
1355 u8 *buffer;
1356
1357 raid_level = SA_RAID_UNKNOWN;
1358
1359 buffer = kmalloc(64, GFP_KERNEL);
1360 if (buffer) {
1361 rc = pqi_scsi_inquiry(ctrl_info, device->scsi3addr,
1362 VPD_PAGE | CISS_VPD_LV_DEVICE_GEOMETRY, buffer, 64);
1363 if (rc == 0) {
1364 raid_level = buffer[8];
1365 if (raid_level > SA_RAID_MAX)
1366 raid_level = SA_RAID_UNKNOWN;
1367 }
1368 kfree(buffer);
1369 }
1370
1371 device->raid_level = raid_level;
1372}
1373
1374static int pqi_validate_raid_map(struct pqi_ctrl_info *ctrl_info,
1375 struct pqi_scsi_dev *device, struct raid_map *raid_map)
1376{
1377 char *err_msg;
1378 u32 raid_map_size;
1379 u32 r5or6_blocks_per_row;
6c223761
KB		 1380
1381 raid_map_size = get_unaligned_le32(&raid_map->structure_size);
1382
1383 if (raid_map_size < offsetof(struct raid_map, disk_data)) {
1384 err_msg = "RAID map too small";
1385 goto bad_raid_map;
1386 }
1387
6c223761
KB		 1388 if (device->raid_level == SA_RAID_1) {
1389 if (get_unaligned_le16(&raid_map->layout_map_count) != 2) {
1390 err_msg = "invalid RAID-1 map";
1391 goto bad_raid_map;
1392 }
7a012c23 1393 } else if (device->raid_level == SA_RAID_TRIPLE) {
6c223761 1394 if (get_unaligned_le16(&raid_map->layout_map_count) != 3) {
7a012c23 1395 err_msg = "invalid RAID-1(Triple) map";
6c223761
KB		 1396 goto bad_raid_map;
1397 }
1398 } else if ((device->raid_level == SA_RAID_5 ||
1399 device->raid_level == SA_RAID_6) &&
1400 get_unaligned_le16(&raid_map->layout_map_count) > 1) {
1401 /* RAID 50/60 */
1402 r5or6_blocks_per_row =
1403 get_unaligned_le16(&raid_map->strip_size) *
1404 get_unaligned_le16(&raid_map->data_disks_per_row);
1405 if (r5or6_blocks_per_row == 0) {
1406 err_msg = "invalid RAID-5 or RAID-6 map";
1407 goto bad_raid_map;
1408 }
1409 }
1410
1411 return 0;
1412
1413bad_raid_map:
d87d5474 1414 dev_warn(&ctrl_info->pci_dev->dev,
38a7338a
KB		 1415 "logical device %08x%08x %s\n",
1416 *((u32 *)&device->scsi3addr),
1417 *((u32 *)&device->scsi3addr[4]), err_msg);
6c223761
KB		 1418
1419 return -EINVAL;
1420}
1421
1422static int pqi_get_raid_map(struct pqi_ctrl_info *ctrl_info,
1423 struct pqi_scsi_dev *device)
1424{
1425 int rc;
a91aaae0 1426 u32 raid_map_size;
6c223761
KB		 1427 struct raid_map *raid_map;
1428
1429 raid_map = kmalloc(sizeof(*raid_map), GFP_KERNEL);
1430 if (!raid_map)
1431 return -ENOMEM;
1432
a91aaae0 1433 rc = pqi_send_scsi_raid_request(ctrl_info, CISS_GET_RAID_MAP,
ae0c189d 1434 device->scsi3addr, raid_map, sizeof(*raid_map), 0, NULL);
6c223761
KB		 1435 if (rc)
1436 goto error;
1437
a91aaae0 1438 raid_map_size = get_unaligned_le32(&raid_map->structure_size);
6c223761 1439
a91aaae0 1440 if (raid_map_size > sizeof(*raid_map)) {
6c223761 1441
a91aaae0
AK		 1442 kfree(raid_map);
1443
1444 raid_map = kmalloc(raid_map_size, GFP_KERNEL);
1445 if (!raid_map)
1446 return -ENOMEM;
1447
1448 rc = pqi_send_scsi_raid_request(ctrl_info, CISS_GET_RAID_MAP,
ae0c189d 1449 device->scsi3addr, raid_map, raid_map_size, 0, NULL);
a91aaae0
AK		 1450 if (rc)
1451 goto error;
1452
1453 if (get_unaligned_le32(&raid_map->structure_size)
1454 != raid_map_size) {
1455 dev_warn(&ctrl_info->pci_dev->dev,
583891c9 1456 "requested %u bytes, received %u bytes\n",
a91aaae0
AK		 1457 raid_map_size,
1458 get_unaligned_le32(&raid_map->structure_size));
d1f6581a 1459 rc = -EINVAL;
a91aaae0
AK		 1460 goto error;
1461 }
1462 }
6c223761
KB		 1463
1464 rc = pqi_validate_raid_map(ctrl_info, device, raid_map);
1465 if (rc)
1466 goto error;
1467
1468 device->raid_map = raid_map;
1469
1470 return 0;
1471
1472error:
1473 kfree(raid_map);
1474
1475 return rc;
1476}
1477
f6cc2a77
KB		 1478static void pqi_set_max_transfer_encrypted(struct pqi_ctrl_info *ctrl_info,
1479 struct pqi_scsi_dev *device)
1480{
1481 if (!ctrl_info->lv_drive_type_mix_valid) {
1482 device->max_transfer_encrypted = ~0;
1483 return;
1484 }
1485
1486 switch (LV_GET_DRIVE_TYPE_MIX(device->scsi3addr)) {
1487 case LV_DRIVE_TYPE_MIX_SAS_HDD_ONLY:
1488 case LV_DRIVE_TYPE_MIX_SATA_HDD_ONLY:
1489 case LV_DRIVE_TYPE_MIX_SAS_OR_SATA_SSD_ONLY:
1490 case LV_DRIVE_TYPE_MIX_SAS_SSD_ONLY:
1491 case LV_DRIVE_TYPE_MIX_SATA_SSD_ONLY:
1492 case LV_DRIVE_TYPE_MIX_SAS_ONLY:
1493 case LV_DRIVE_TYPE_MIX_SATA_ONLY:
1494 device->max_transfer_encrypted =
1495 ctrl_info->max_transfer_encrypted_sas_sata;
1496 break;
1497 case LV_DRIVE_TYPE_MIX_NVME_ONLY:
1498 device->max_transfer_encrypted =
1499 ctrl_info->max_transfer_encrypted_nvme;
1500 break;
1501 case LV_DRIVE_TYPE_MIX_UNKNOWN:
1502 case LV_DRIVE_TYPE_MIX_NO_RESTRICTION:
1503 default:
1504 device->max_transfer_encrypted =
1505 min(ctrl_info->max_transfer_encrypted_sas_sata,
1506 ctrl_info->max_transfer_encrypted_nvme);
1507 break;
1508 }
1509}
1510
588a63fe 1511static void pqi_get_raid_bypass_status(struct pqi_ctrl_info *ctrl_info,
6c223761
KB		 1512 struct pqi_scsi_dev *device)
1513{
1514 int rc;
1515 u8 *buffer;
588a63fe 1516 u8 bypass_status;
6c223761
KB		 1517
1518 buffer = kmalloc(64, GFP_KERNEL);
1519 if (!buffer)
1520 return;
1521
1522 rc = pqi_scsi_inquiry(ctrl_info, device->scsi3addr,
588a63fe 1523 VPD_PAGE | CISS_VPD_LV_BYPASS_STATUS, buffer, 64);
6c223761
KB		 1524 if (rc)
1525 goto out;
1526
694c5d5b
KB		 1527#define RAID_BYPASS_STATUS 4
1528#define RAID_BYPASS_CONFIGURED 0x1
1529#define RAID_BYPASS_ENABLED 0x2
6c223761 1530
588a63fe
KB		 1531 bypass_status = buffer[RAID_BYPASS_STATUS];
1532 device->raid_bypass_configured =
1533 (bypass_status & RAID_BYPASS_CONFIGURED) != 0;
1534 if (device->raid_bypass_configured &&
1535 (bypass_status & RAID_BYPASS_ENABLED) &&
f6cc2a77 1536 pqi_get_raid_map(ctrl_info, device) == 0) {
588a63fe 1537 device->raid_bypass_enabled = true;
f6cc2a77
KB		 1538 if (get_unaligned_le16(&device->raid_map->flags) &
1539 RAID_MAP_ENCRYPTION_ENABLED)
1540 pqi_set_max_transfer_encrypted(ctrl_info, device);
1541 }
6c223761
KB		 1542
1543out:
1544 kfree(buffer);
1545}
1546
1547/*
1548 * Use vendor-specific VPD to determine online/offline status of a volume.
1549 */
1550
1551static void pqi_get_volume_status(struct pqi_ctrl_info *ctrl_info,
1552 struct pqi_scsi_dev *device)
1553{
1554 int rc;
1555 size_t page_length;
1556 u8 volume_status = CISS_LV_STATUS_UNAVAILABLE;
1557 bool volume_offline = true;
1558 u32 volume_flags;
1559 struct ciss_vpd_logical_volume_status *vpd;
1560
1561 vpd = kmalloc(sizeof(*vpd), GFP_KERNEL);
1562 if (!vpd)
1563 goto no_buffer;
1564
1565 rc = pqi_scsi_inquiry(ctrl_info, device->scsi3addr,
1566 VPD_PAGE | CISS_VPD_LV_STATUS, vpd, sizeof(*vpd));
1567 if (rc)
1568 goto out;
1569
7ff44499
DC		 1570 if (vpd->page_code != CISS_VPD_LV_STATUS)
1571 goto out;
1572
6c223761
KB		 1573 page_length = offsetof(struct ciss_vpd_logical_volume_status,
1574 volume_status) + vpd->page_length;
1575 if (page_length < sizeof(*vpd))
1576 goto out;
1577
1578 volume_status = vpd->volume_status;
1579 volume_flags = get_unaligned_be32(&vpd->flags);
1580 volume_offline = (volume_flags & CISS_LV_FLAGS_NO_HOST_IO) != 0;
1581
1582out:
1583 kfree(vpd);
1584no_buffer:
1585 device->volume_status = volume_status;
1586 device->volume_offline = volume_offline;
1587}
1588
2a47834d 1589#define PQI_DEVICE_NCQ_PRIO_SUPPORTED 0x01
ec504b23
MB		 1590#define PQI_DEVICE_PHY_MAP_SUPPORTED 0x10
1591
ce143793
KB		 1592static int pqi_get_physical_device_info(struct pqi_ctrl_info *ctrl_info,
1593 struct pqi_scsi_dev *device,
1594 struct bmic_identify_physical_device *id_phys)
1595{
1596 int rc;
26b390ab 1597
ce143793
KB		 1598 memset(id_phys, 0, sizeof(*id_phys));
1599
1600 rc = pqi_identify_physical_device(ctrl_info, device,
1601 id_phys, sizeof(*id_phys));
1602 if (rc) {
1603 device->queue_depth = PQI_PHYSICAL_DISK_DEFAULT_MAX_QUEUE_DEPTH;
1604 return rc;
1605 }
1606
1607 scsi_sanitize_inquiry_string(&id_phys->model[0], 8);
1608 scsi_sanitize_inquiry_string(&id_phys->model[8], 16);
1609
1610 memcpy(device->vendor, &id_phys->model[0], sizeof(device->vendor));
1611 memcpy(device->model, &id_phys->model[8], sizeof(device->model));
1612
1613 device->box_index = id_phys->box_index;
1614 device->phys_box_on_bus = id_phys->phys_box_on_bus;
1615 device->phy_connected_dev_type = id_phys->phy_connected_dev_type[0];
1616 device->queue_depth =
1617 get_unaligned_le16(&id_phys->current_queue_depth_limit);
1618 device->active_path_index = id_phys->active_path_number;
1619 device->path_map = id_phys->redundant_path_present_map;
1620 memcpy(&device->box,
1621 &id_phys->alternate_paths_phys_box_on_port,
1622 sizeof(device->box));
1623 memcpy(&device->phys_connector,
1624 &id_phys->alternate_paths_phys_connector,
1625 sizeof(device->phys_connector));
1626 device->bay = id_phys->phys_bay_in_box;
cc9befcb 1627 device->lun_count = id_phys->multi_lun_device_lun_count;
ec504b23
MB		 1628 if ((id_phys->even_more_flags & PQI_DEVICE_PHY_MAP_SUPPORTED) &&
1629 id_phys->phy_count)
1630 device->phy_id =
1631 id_phys->phy_to_phy_map[device->active_path_index];
1632 else
1633 device->phy_id = 0xFF;
1634
2a47834d
GW		 1635 device->ncq_prio_support =
1636 ((get_unaligned_le32(&id_phys->misc_drive_flags) >> 16) &
1637 PQI_DEVICE_NCQ_PRIO_SUPPORTED);
1638
ce143793
KB		 1639 return 0;
1640}
1641
1642static int pqi_get_logical_device_info(struct pqi_ctrl_info *ctrl_info,
6c223761
KB		 1643 struct pqi_scsi_dev *device)
1644{
1645 int rc;
1646 u8 *buffer;
3d46a59a 1647
6c223761
KB		 1648 buffer = kmalloc(64, GFP_KERNEL);
1649 if (!buffer)
1650 return -ENOMEM;
1651
1652 /* Send an inquiry to the device to see what it is. */
ce143793
KB		 1653 rc = pqi_scsi_inquiry(ctrl_info, device->scsi3addr, 0, buffer, 64);
1654 if (rc)
1655 goto out;
6c223761
KB		 1656
1657 scsi_sanitize_inquiry_string(&buffer[8], 8);
1658 scsi_sanitize_inquiry_string(&buffer[16], 16);
1659
1660 device->devtype = buffer[0] & 0x1f;
cbe0c7b1
KB		 1661 memcpy(device->vendor, &buffer[8], sizeof(device->vendor));
1662 memcpy(device->model, &buffer[16], sizeof(device->model));
6c223761 1663
ce143793 1664 if (device->devtype == TYPE_DISK) {
bd10cf0b
KB		 1665 if (device->is_external_raid_device) {
1666 device->raid_level = SA_RAID_UNKNOWN;
1667 device->volume_status = CISS_LV_OK;
1668 device->volume_offline = false;
1669 } else {
1670 pqi_get_raid_level(ctrl_info, device);
588a63fe 1671 pqi_get_raid_bypass_status(ctrl_info, device);
bd10cf0b
KB		 1672 pqi_get_volume_status(ctrl_info, device);
1673 }
6c223761
KB		 1674 }
1675
1676out:
1677 kfree(buffer);
1678
1679 return rc;
1680}
1681
be76f906
DB		 1682/*
1683 * Prevent adding drive to OS for some corner cases such as a drive
1684 * undergoing a sanitize operation. Some OSes will continue to poll
1685 * the drive until the sanitize completes, which can take hours,
1686 * resulting in long bootup delays. Commands such as TUR, READ_CAP
1687 * are allowed, but READ/WRITE cause check condition. So the OS
1688 * cannot check/read the partition table.
1689 * Note: devices that have completed sanitize must be re-enabled
1690 * using the management utility.
1691 */
1692static bool pqi_keep_device_offline(struct pqi_ctrl_info *ctrl_info,
1693 struct pqi_scsi_dev *device)
1694{
1695 u8 scsi_status;
1696 int rc;
1697 enum dma_data_direction dir;
1698 char *buffer;
1699 int buffer_length = 64;
1700 size_t sense_data_length;
1701 struct scsi_sense_hdr sshdr;
1702 struct pqi_raid_path_request request;
1703 struct pqi_raid_error_info error_info;
1704 bool offline = false; /* Assume keep online */
1705
1706 /* Do not check controllers. */
1707 if (pqi_is_hba_lunid(device->scsi3addr))
1708 return false;
1709
1710 /* Do not check LVs. */
1711 if (pqi_is_logical_device(device))
1712 return false;
1713
1714 buffer = kmalloc(buffer_length, GFP_KERNEL);
1715 if (!buffer)
1716 return false; /* Assume not offline */
1717
1718 /* Check for SANITIZE in progress using TUR */
1719 rc = pqi_build_raid_path_request(ctrl_info, &request,
1720 TEST_UNIT_READY, RAID_CTLR_LUNID, buffer,
1721 buffer_length, 0, &dir);
1722 if (rc)
1723 goto out; /* Assume not offline */
1724
1725 memcpy(request.lun_number, device->scsi3addr, sizeof(request.lun_number));
1726
1727 rc = pqi_submit_raid_request_synchronous(ctrl_info, &request.header, 0, &error_info);
1728
1729 if (rc)
1730 goto out; /* Assume not offline */
1731
1732 scsi_status = error_info.status;
1733 sense_data_length = get_unaligned_le16(&error_info.sense_data_length);
1734 if (sense_data_length == 0)
1735 sense_data_length =
1736 get_unaligned_le16(&error_info.response_data_length);
1737 if (sense_data_length) {
1738 if (sense_data_length > sizeof(error_info.data))
1739 sense_data_length = sizeof(error_info.data);
1740
1741 /*
1742 * Check for sanitize in progress: asc:0x04, ascq: 0x1b
1743 */
1744 if (scsi_status == SAM_STAT_CHECK_CONDITION &&
1745 scsi_normalize_sense(error_info.data,
1746 sense_data_length, &sshdr) &&
1747 sshdr.sense_key == NOT_READY &&
1748 sshdr.asc == 0x04 &&
1749 sshdr.ascq == 0x1b) {
1750 device->device_offline = true;
1751 offline = true;
1752 goto out; /* Keep device offline */
1753 }
1754 }
1755
1756out:
1757 kfree(buffer);
1758 return offline;
1759}
1760
cc9befcb 1761static int pqi_get_device_info_phys_logical(struct pqi_ctrl_info *ctrl_info,
6c223761
KB		 1762 struct pqi_scsi_dev *device,
1763 struct bmic_identify_physical_device *id_phys)
1764{
1765 int rc;
1766
ce143793
KB		 1767 if (device->is_expander_smp_device)
1768 return 0;
6c223761 1769
ce143793
KB		 1770 if (pqi_is_logical_device(device))
1771 rc = pqi_get_logical_device_info(ctrl_info, device);
1772 else
1773 rc = pqi_get_physical_device_info(ctrl_info, device, id_phys);
694c5d5b 1774
ce143793 1775 return rc;
6c223761
KB		 1776}
1777
cc9befcb
KM		 1778static int pqi_get_device_info(struct pqi_ctrl_info *ctrl_info,
1779 struct pqi_scsi_dev *device,
1780 struct bmic_identify_physical_device *id_phys)
1781{
1782 int rc;
1783
1784 rc = pqi_get_device_info_phys_logical(ctrl_info, device, id_phys);
1785
1786 if (rc == 0 && device->lun_count == 0)
1787 device->lun_count = 1;
1788
1789 return rc;
1790}
1791
6c223761
KB		 1792static void pqi_show_volume_status(struct pqi_ctrl_info *ctrl_info,
1793 struct pqi_scsi_dev *device)
1794{
1795 char *status;
1796 static const char unknown_state_str[] =
1797 "Volume is in an unknown state (%u)";
1798 char unknown_state_buffer[sizeof(unknown_state_str) + 10];
1799
1800 switch (device->volume_status) {
1801 case CISS_LV_OK:
1802 status = "Volume online";
1803 break;
1804 case CISS_LV_FAILED:
1805 status = "Volume failed";
1806 break;
1807 case CISS_LV_NOT_CONFIGURED:
1808 status = "Volume not configured";
1809 break;
1810 case CISS_LV_DEGRADED:
1811 status = "Volume degraded";
1812 break;
1813 case CISS_LV_READY_FOR_RECOVERY:
1814 status = "Volume ready for recovery operation";
1815 break;
1816 case CISS_LV_UNDERGOING_RECOVERY:
1817 status = "Volume undergoing recovery";
1818 break;
1819 case CISS_LV_WRONG_PHYSICAL_DRIVE_REPLACED:
1820 status = "Wrong physical drive was replaced";
1821 break;
1822 case CISS_LV_PHYSICAL_DRIVE_CONNECTION_PROBLEM:
1823 status = "A physical drive not properly connected";
1824 break;
1825 case CISS_LV_HARDWARE_OVERHEATING:
1826 status = "Hardware is overheating";
1827 break;
1828 case CISS_LV_HARDWARE_HAS_OVERHEATED:
1829 status = "Hardware has overheated";
1830 break;
1831 case CISS_LV_UNDERGOING_EXPANSION:
1832 status = "Volume undergoing expansion";
1833 break;
1834 case CISS_LV_NOT_AVAILABLE:
1835 status = "Volume waiting for transforming volume";
1836 break;
1837 case CISS_LV_QUEUED_FOR_EXPANSION:
1838 status = "Volume queued for expansion";
1839 break;
1840 case CISS_LV_DISABLED_SCSI_ID_CONFLICT:
1841 status = "Volume disabled due to SCSI ID conflict";
1842 break;
1843 case CISS_LV_EJECTED:
1844 status = "Volume has been ejected";
1845 break;
1846 case CISS_LV_UNDERGOING_ERASE:
1847 status = "Volume undergoing background erase";
1848 break;
1849 case CISS_LV_READY_FOR_PREDICTIVE_SPARE_REBUILD:
1850 status = "Volume ready for predictive spare rebuild";
1851 break;
1852 case CISS_LV_UNDERGOING_RPI:
1853 status = "Volume undergoing rapid parity initialization";
1854 break;
1855 case CISS_LV_PENDING_RPI:
1856 status = "Volume queued for rapid parity initialization";
1857 break;
1858 case CISS_LV_ENCRYPTED_NO_KEY:
1859 status = "Encrypted volume inaccessible - key not present";
1860 break;
1861 case CISS_LV_UNDERGOING_ENCRYPTION:
1862 status = "Volume undergoing encryption process";
1863 break;
1864 case CISS_LV_UNDERGOING_ENCRYPTION_REKEYING:
1865 status = "Volume undergoing encryption re-keying process";
1866 break;
1867 case CISS_LV_ENCRYPTED_IN_NON_ENCRYPTED_CONTROLLER:
d87d5474 1868 status = "Volume encrypted but encryption is disabled";
6c223761
KB		 1869 break;
1870 case CISS_LV_PENDING_ENCRYPTION:
1871 status = "Volume pending migration to encrypted state";
1872 break;
1873 case CISS_LV_PENDING_ENCRYPTION_REKEYING:
1874 status = "Volume pending encryption rekeying";
1875 break;
1876 case CISS_LV_NOT_SUPPORTED:
1877 status = "Volume not supported on this controller";
1878 break;
1879 case CISS_LV_STATUS_UNAVAILABLE:
1880 status = "Volume status not available";
1881 break;
1882 default:
1883 snprintf(unknown_state_buffer, sizeof(unknown_state_buffer),
1884 unknown_state_str, device->volume_status);
1885 status = unknown_state_buffer;
1886 break;
1887 }
1888
1889 dev_info(&ctrl_info->pci_dev->dev,
1890 "scsi %d:%d:%d:%d %s\n",
1891 ctrl_info->scsi_host->host_no,
1892 device->bus, device->target, device->lun, status);
1893}
1894
6c223761
KB		 1895static void pqi_rescan_worker(struct work_struct *work)
1896{
1897 struct pqi_ctrl_info *ctrl_info;
1898
1899 ctrl_info = container_of(to_delayed_work(work), struct pqi_ctrl_info,
1900 rescan_work);
1901
1902 pqi_scan_scsi_devices(ctrl_info);
1903}
1904
1905static int pqi_add_device(struct pqi_ctrl_info *ctrl_info,
1906 struct pqi_scsi_dev *device)
1907{
1908 int rc;
1909
1910 if (pqi_is_logical_device(device))
1911 rc = scsi_add_device(ctrl_info->scsi_host, device->bus,
1912 device->target, device->lun);
1913 else
1914 rc = pqi_add_sas_device(ctrl_info->sas_host, device);
1915
1916 return rc;
1917}
1918
18ff5f08 1919#define PQI_REMOVE_DEVICE_PENDING_IO_TIMEOUT_MSECS (20 * 1000)
1e46731e 1920
583891c9 1921static inline void pqi_remove_device(struct pqi_ctrl_info *ctrl_info, struct pqi_scsi_dev *device)
6c223761 1922{
1e46731e 1923 int rc;
904f2bfd 1924 int lun;
1e46731e 1925
cc9befcb 1926 for (lun = 0; lun < device->lun_count; lun++) {
904f2bfd
KM		 1927 rc = pqi_device_wait_for_pending_io(ctrl_info, device, lun,
1928 PQI_REMOVE_DEVICE_PENDING_IO_TIMEOUT_MSECS);
1929 if (rc)
1930 dev_err(&ctrl_info->pci_dev->dev,
1931 "scsi %d:%d:%d:%d removing device with %d outstanding command(s)\n",
1932 ctrl_info->scsi_host->host_no, device->bus,
1933 device->target, lun,
1934 atomic_read(&device->scsi_cmds_outstanding[lun]));
1935 }
1e46731e 1936
6c223761
KB		 1937 if (pqi_is_logical_device(device))
1938 scsi_remove_device(device->sdev);
1939 else
1940 pqi_remove_sas_device(device);
819225b0
DB		 1941
1942 pqi_device_remove_start(device);
6c223761
KB		 1943}
1944
1945/* Assumes the SCSI device list lock is held. */
1946
1947static struct pqi_scsi_dev *pqi_find_scsi_dev(struct pqi_ctrl_info *ctrl_info,
1948 int bus, int target, int lun)
1949{
1950 struct pqi_scsi_dev *device;
1951
4d15ad38
KB		 1952 list_for_each_entry(device, &ctrl_info->scsi_device_list, scsi_device_list_entry)
1953 if (device->bus == bus && device->target == target && device->lun == lun)
6c223761
KB		 1954 return device;
1955
1956 return NULL;
1957}
1958
583891c9 1959static inline bool pqi_device_equal(struct pqi_scsi_dev *dev1, struct pqi_scsi_dev *dev2)
6c223761
KB		 1960{
1961 if (dev1->is_physical_device != dev2->is_physical_device)
1962 return false;
1963
1964 if (dev1->is_physical_device)
28ca6d87 1965 return memcmp(dev1->wwid, dev2->wwid, sizeof(dev1->wwid)) == 0;
6c223761 1966
583891c9 1967 return memcmp(dev1->volume_id, dev2->volume_id, sizeof(dev1->volume_id)) == 0;
6c223761
KB		 1968}
1969
1970enum pqi_find_result {
1971 DEVICE_NOT_FOUND,
1972 DEVICE_CHANGED,
1973 DEVICE_SAME,
1974};
1975
1976static enum pqi_find_result pqi_scsi_find_entry(struct pqi_ctrl_info *ctrl_info,
4d15ad38 1977 struct pqi_scsi_dev *device_to_find, struct pqi_scsi_dev **matching_device)
6c223761
KB		 1978{
1979 struct pqi_scsi_dev *device;
1980
4d15ad38
KB		 1981 list_for_each_entry(device, &ctrl_info->scsi_device_list, scsi_device_list_entry) {
1982 if (pqi_scsi3addr_equal(device_to_find->scsi3addr, device->scsi3addr)) {
6c223761
KB		 1983 *matching_device = device;
1984 if (pqi_device_equal(device_to_find, device)) {
1985 if (device_to_find->volume_offline)
1986 return DEVICE_CHANGED;
1987 return DEVICE_SAME;
1988 }
1989 return DEVICE_CHANGED;
1990 }
1991 }
1992
1993 return DEVICE_NOT_FOUND;
1994}
1995
3d46a59a
DB		 1996static inline const char *pqi_device_type(struct pqi_scsi_dev *device)
1997{
1998 if (device->is_expander_smp_device)
1999 return "Enclosure SMP ";
2000
2001 return scsi_device_type(device->devtype);
2002}
2003
6de783f6
KB		 2004#define PQI_DEV_INFO_BUFFER_LENGTH 128
2005
6c223761
KB		 2006static void pqi_dev_info(struct pqi_ctrl_info *ctrl_info,
2007 char *action, struct pqi_scsi_dev *device)
2008{
6de783f6
KB		 2009 ssize_t count;
2010 char buffer[PQI_DEV_INFO_BUFFER_LENGTH];
2011
a4256252 2012 count = scnprintf(buffer, PQI_DEV_INFO_BUFFER_LENGTH,
6de783f6
KB		 2013 "%d:%d:", ctrl_info->scsi_host->host_no, device->bus);
2014
2015 if (device->target_lun_valid)
181aea89 2016 count += scnprintf(buffer + count,
6de783f6
KB		 2017 PQI_DEV_INFO_BUFFER_LENGTH - count,
2018 "%d:%d",
2019 device->target,
2020 device->lun);
2021 else
181aea89 2022 count += scnprintf(buffer + count,
6de783f6
KB		 2023 PQI_DEV_INFO_BUFFER_LENGTH - count,
2024 "-:-");
2025
2026 if (pqi_is_logical_device(device))
181aea89 2027 count += scnprintf(buffer + count,
6de783f6
KB		 2028 PQI_DEV_INFO_BUFFER_LENGTH - count,
2029 " %08x%08x",
2030 *((u32 *)&device->scsi3addr),
2031 *((u32 *)&device->scsi3addr[4]));
2032 else
181aea89 2033 count += scnprintf(buffer + count,
6de783f6 2034 PQI_DEV_INFO_BUFFER_LENGTH - count,
28ca6d87
MM		 2035 " %016llx%016llx",
2036 get_unaligned_be64(&device->wwid[0]),
2037 get_unaligned_be64(&device->wwid[8]));
6de783f6 2038
181aea89 2039 count += scnprintf(buffer + count, PQI_DEV_INFO_BUFFER_LENGTH - count,
6de783f6 2040 " %s %.8s %.16s ",
3d46a59a 2041 pqi_device_type(device),
6c223761 2042 device->vendor,
6de783f6
KB		 2043 device->model);
2044
2045 if (pqi_is_logical_device(device)) {
2046 if (device->devtype == TYPE_DISK)
181aea89 2047 count += scnprintf(buffer + count,
6de783f6
KB		 2048 PQI_DEV_INFO_BUFFER_LENGTH - count,
2049 "SSDSmartPathCap%c En%c %-12s",
588a63fe
KB		 2050 device->raid_bypass_configured ? '+' : '-',
2051 device->raid_bypass_enabled ? '+' : '-',
6de783f6
KB		 2052 pqi_raid_level_to_string(device->raid_level));
2053 } else {
181aea89 2054 count += scnprintf(buffer + count,
6de783f6
KB		 2055 PQI_DEV_INFO_BUFFER_LENGTH - count,
2056 "AIO%c", device->aio_enabled ? '+' : '-');
2057 if (device->devtype == TYPE_DISK ||
2058 device->devtype == TYPE_ZBC)
181aea89 2059 count += scnprintf(buffer + count,
6de783f6
KB		 2060 PQI_DEV_INFO_BUFFER_LENGTH - count,
2061 " qd=%-6d", device->queue_depth);
2062 }
2063
2064 dev_info(&ctrl_info->pci_dev->dev, "%s %s\n", action, buffer);
6c223761
KB		 2065}
2066
6ce3cfb3
KB		 2067static bool pqi_raid_maps_equal(struct raid_map *raid_map1, struct raid_map *raid_map2)
2068{
2069 u32 raid_map1_size;
2070 u32 raid_map2_size;
2071
2072 if (raid_map1 == NULL || raid_map2 == NULL)
2073 return raid_map1 == raid_map2;
2074
2075 raid_map1_size = get_unaligned_le32(&raid_map1->structure_size);
2076 raid_map2_size = get_unaligned_le32(&raid_map2->structure_size);
2077
2078 if (raid_map1_size != raid_map2_size)
2079 return false;
2080
2081 return memcmp(raid_map1, raid_map2, raid_map1_size) == 0;
2082}
2083
6c223761
KB		 2084/* Assumes the SCSI device list lock is held. */
2085
27655e9d
MR		 2086static void pqi_scsi_update_device(struct pqi_ctrl_info *ctrl_info,
2087 struct pqi_scsi_dev *existing_device, struct pqi_scsi_dev *new_device)
6c223761 2088{
6c223761
KB		 2089 existing_device->device_type = new_device->device_type;
2090 existing_device->bus = new_device->bus;
2091 if (new_device->target_lun_valid) {
2092 existing_device->target = new_device->target;
2093 existing_device->lun = new_device->lun;
2094 existing_device->target_lun_valid = true;
2095 }
2096
2097 /* By definition, the scsi3addr and wwid fields are already the same. */
2098
2099 existing_device->is_physical_device = new_device->is_physical_device;
6ce3cfb3
KB		 2100 memcpy(existing_device->vendor, new_device->vendor, sizeof(existing_device->vendor));
2101 memcpy(existing_device->model, new_device->model, sizeof(existing_device->model));
6c223761 2102 existing_device->sas_address = new_device->sas_address;
6c223761 2103 existing_device->queue_depth = new_device->queue_depth;
a9a68101 2104 existing_device->device_offline = false;
cc9befcb 2105 existing_device->lun_count = new_device->lun_count;
6c223761 2106
6ce3cfb3
KB		 2107 if (pqi_is_logical_device(existing_device)) {
2108 existing_device->is_external_raid_device = new_device->is_external_raid_device;
2109
2110 if (existing_device->devtype == TYPE_DISK) {
2111 existing_device->raid_level = new_device->raid_level;
2112 existing_device->volume_status = new_device->volume_status;
2113 if (ctrl_info->logical_volume_rescan_needed)
2114 existing_device->rescan = true;
2115 memset(existing_device->next_bypass_group, 0, sizeof(existing_device->next_bypass_group));
2116 if (!pqi_raid_maps_equal(existing_device->raid_map, new_device->raid_map)) {
2117 kfree(existing_device->raid_map);
2118 existing_device->raid_map = new_device->raid_map;
2119 /* To prevent this from being freed later. */
2120 new_device->raid_map = NULL;
2121 }
2122 existing_device->raid_bypass_configured = new_device->raid_bypass_configured;
2123 existing_device->raid_bypass_enabled = new_device->raid_bypass_enabled;
2124 }
2125 } else {
2126 existing_device->aio_enabled = new_device->aio_enabled;
2127 existing_device->aio_handle = new_device->aio_handle;
2128 existing_device->is_expander_smp_device = new_device->is_expander_smp_device;
2129 existing_device->active_path_index = new_device->active_path_index;
2130 existing_device->phy_id = new_device->phy_id;
2131 existing_device->path_map = new_device->path_map;
2132 existing_device->bay = new_device->bay;
2133 existing_device->box_index = new_device->box_index;
2134 existing_device->phys_box_on_bus = new_device->phys_box_on_bus;
2135 existing_device->phy_connected_dev_type = new_device->phy_connected_dev_type;
2136 memcpy(existing_device->box, new_device->box, sizeof(existing_device->box));
2137 memcpy(existing_device->phys_connector, new_device->phys_connector, sizeof(existing_device->phys_connector));
6ce3cfb3 2138 }
6c223761
KB		 2139}
2140
2141static inline void pqi_free_device(struct pqi_scsi_dev *device)
2142{
2143 if (device) {
2144 kfree(device->raid_map);
2145 kfree(device);
2146 }
2147}
2148
2149/*
2150 * Called when exposing a new device to the OS fails in order to re-adjust
2151 * our internal SCSI device list to match the SCSI ML's view.
2152 */
2153
2154static inline void pqi_fixup_botched_add(struct pqi_ctrl_info *ctrl_info,
2155 struct pqi_scsi_dev *device)
2156{
2157 unsigned long flags;
2158
2159 spin_lock_irqsave(&ctrl_info->scsi_device_list_lock, flags);
2160 list_del(&device->scsi_device_list_entry);
2161 spin_unlock_irqrestore(&ctrl_info->scsi_device_list_lock, flags);
2162
2163 /* Allow the device structure to be freed later. */
2164 device->keep_device = false;
2165}
2166
3d46a59a
DB		 2167static inline bool pqi_is_device_added(struct pqi_scsi_dev *device)
2168{
2169 if (device->is_expander_smp_device)
2170 return device->sas_port != NULL;
2171
2172 return device->sdev != NULL;
2173}
2174
6c223761
KB		 2175static void pqi_update_device_list(struct pqi_ctrl_info *ctrl_info,
2176 struct pqi_scsi_dev *new_device_list[], unsigned int num_new_devices)
2177{
2178 int rc;
2179 unsigned int i;
2180 unsigned long flags;
2181 enum pqi_find_result find_result;
2182 struct pqi_scsi_dev *device;
2183 struct pqi_scsi_dev *next;
2184 struct pqi_scsi_dev *matching_device;
8a994a04
KB		 2185 LIST_HEAD(add_list);
2186 LIST_HEAD(delete_list);
6c223761
KB		 2187
2188 /*
2189 * The idea here is to do as little work as possible while holding the
2190 * spinlock. That's why we go to great pains to defer anything other
2191 * than updating the internal device list until after we release the
2192 * spinlock.
2193 */
2194
2195 spin_lock_irqsave(&ctrl_info->scsi_device_list_lock, flags);
2196
2197 /* Assume that all devices in the existing list have gone away. */
4d15ad38 2198 list_for_each_entry(device, &ctrl_info->scsi_device_list, scsi_device_list_entry)
6c223761
KB		 2199 device->device_gone = true;
2200
2201 for (i = 0; i < num_new_devices; i++) {
2202 device = new_device_list[i];
2203
2204 find_result = pqi_scsi_find_entry(ctrl_info, device,
694c5d5b 2205 &matching_device);
6c223761
KB		 2206
2207 switch (find_result) {
2208 case DEVICE_SAME:
2209 /*
2210 * The newly found device is already in the existing
2211 * device list.
2212 */
2213 device->new_device = false;
2214 matching_device->device_gone = false;
27655e9d 2215 pqi_scsi_update_device(ctrl_info, matching_device, device);
6c223761
KB		 2216 break;
2217 case DEVICE_NOT_FOUND:
2218 /*
2219 * The newly found device is NOT in the existing device
2220 * list.
2221 */
2222 device->new_device = true;
2223 break;
2224 case DEVICE_CHANGED:
2225 /*
2226 * The original device has gone away and we need to add
2227 * the new device.
2228 */
2229 device->new_device = true;
2230 break;
6c223761
KB		 2231 }
2232 }
2233
2234 /* Process all devices that have gone away. */
2235 list_for_each_entry_safe(device, next, &ctrl_info->scsi_device_list,
2236 scsi_device_list_entry) {
2237 if (device->device_gone) {
819225b0 2238 list_del(&device->scsi_device_list_entry);
6c223761
KB		 2239 list_add_tail(&device->delete_list_entry, &delete_list);
2240 }
2241 }
2242
2243 /* Process all new devices. */
2244 for (i = 0; i < num_new_devices; i++) {
2245 device = new_device_list[i];
2246 if (!device->new_device)
2247 continue;
2248 if (device->volume_offline)
2249 continue;
2250 list_add_tail(&device->scsi_device_list_entry,
2251 &ctrl_info->scsi_device_list);
2252 list_add_tail(&device->add_list_entry, &add_list);
2253 /* To prevent this device structure from being freed later. */
2254 device->keep_device = true;
2255 }
2256
6c223761
KB		 2257 spin_unlock_irqrestore(&ctrl_info->scsi_device_list_lock, flags);
2258
2790cd4d
KB		 2259 /*
2260 * If OFA is in progress and there are devices that need to be deleted,
2261 * allow any pending reset operations to continue and unblock any SCSI
2262 * requests before removal.
2263 */
2264 if (pqi_ofa_in_progress(ctrl_info)) {
2265 list_for_each_entry_safe(device, next, &delete_list, delete_list_entry)
2266 if (pqi_is_device_added(device))
2267 pqi_device_remove_start(device);
2268 pqi_ctrl_unblock_device_reset(ctrl_info);
2269 pqi_scsi_unblock_requests(ctrl_info);
2270 }
4fd22c13 2271
6c223761 2272 /* Remove all devices that have gone away. */
4d15ad38 2273 list_for_each_entry_safe(device, next, &delete_list, delete_list_entry) {
6c223761
KB		 2274 if (device->volume_offline) {
2275 pqi_dev_info(ctrl_info, "offline", device);
2276 pqi_show_volume_status(ctrl_info, device);
4d15ad38 2277 } else {
819225b0 2278 pqi_dev_info(ctrl_info, "removed", device);
4d15ad38 2279 }
819225b0
DB		 2280 if (pqi_is_device_added(device))
2281 pqi_remove_device(ctrl_info, device);
2282 list_del(&device->delete_list_entry);
2283 pqi_free_device(device);
6c223761
KB		 2284 }
2285
2286 /*
27655e9d
MR		 2287 * Notify the SML of any existing device changes such as;
2288 * queue depth, device size.
6c223761 2289 */
583891c9
KB		 2290 list_for_each_entry(device, &ctrl_info->scsi_device_list, scsi_device_list_entry) {
2291 if (device->sdev && device->queue_depth != device->advertised_queue_depth) {
2292 device->advertised_queue_depth = device->queue_depth;
2293 scsi_change_queue_depth(device->sdev, device->advertised_queue_depth);
244ca45e
MR		 2294 if (device->rescan) {
2295 scsi_rescan_device(&device->sdev->sdev_gendev);
2296 device->rescan = false;
2297 }
6c223761
KB		 2298 }
2299 }
2300
2301 /* Expose any new devices. */
2302 list_for_each_entry_safe(device, next, &add_list, add_list_entry) {
3d46a59a 2303 if (!pqi_is_device_added(device)) {
6c223761 2304 rc = pqi_add_device(ctrl_info, device);
ce143793
KB		 2305 if (rc == 0) {
2306 pqi_dev_info(ctrl_info, "added", device);
2307 } else {
6c223761
KB		 2308 dev_warn(&ctrl_info->pci_dev->dev,
2309 "scsi %d:%d:%d:%d addition failed, device not added\n",
2310 ctrl_info->scsi_host->host_no,
2311 device->bus, device->target,
2312 device->lun);
2313 pqi_fixup_botched_add(ctrl_info, device);
6c223761
KB		 2314 }
2315 }
6c223761 2316 }
27655e9d
MR		 2317
2318 ctrl_info->logical_volume_rescan_needed = false;
2319
6c223761
KB		 2320}
2321
ce143793 2322static inline bool pqi_is_supported_device(struct pqi_scsi_dev *device)
6c223761 2323{
ce143793
KB		 2324 /*
2325 * Only support the HBA controller itself as a RAID
2326 * controller. If it's a RAID controller other than
2327 * the HBA itself (an external RAID controller, for
2328 * example), we don't support it.
2329 */
2330 if (device->device_type == SA_DEVICE_TYPE_CONTROLLER &&
2331 !pqi_is_hba_lunid(device->scsi3addr))
583891c9 2332 return false;
6c223761 2333
ce143793 2334 return true;
6c223761
KB		 2335}
2336
94086f5b 2337static inline bool pqi_skip_device(u8 *scsi3addr)
6c223761 2338{
94086f5b
KB		 2339 /* Ignore all masked devices. */
2340 if (MASKED_DEVICE(scsi3addr))
6c223761 2341 return true;
6c223761
KB		 2342
2343 return false;
2344}
2345
522bc026
DC		 2346static inline void pqi_mask_device(u8 *scsi3addr)
2347{
2348 scsi3addr[3] |= 0xc0;
2349}
2350
94a68c81
MB		 2351static inline bool pqi_is_multipath_device(struct pqi_scsi_dev *device)
2352{
2353 if (pqi_is_logical_device(device))
2354 return false;
2355
2356 return (device->path_map & (device->path_map - 1)) != 0;
2357}
2358
cd128244
DC		 2359static inline bool pqi_expose_device(struct pqi_scsi_dev *device)
2360{
583891c9 2361 return !device->is_physical_device || !pqi_skip_device(device->scsi3addr);
cd128244
DC		 2362}
2363
6c223761
KB		 2364static int pqi_update_scsi_devices(struct pqi_ctrl_info *ctrl_info)
2365{
2366 int i;
2367 int rc;
8a994a04 2368 LIST_HEAD(new_device_list_head);
28ca6d87
MM		 2369 struct report_phys_lun_16byte_wwid_list *physdev_list = NULL;
2370 struct report_log_lun_list *logdev_list = NULL;
2371 struct report_phys_lun_16byte_wwid *phys_lun;
2372 struct report_log_lun *log_lun;
6c223761
KB		 2373 struct bmic_identify_physical_device *id_phys = NULL;
2374 u32 num_physicals;
2375 u32 num_logicals;
2376 struct pqi_scsi_dev **new_device_list = NULL;
2377 struct pqi_scsi_dev *device;
2378 struct pqi_scsi_dev *next;
2379 unsigned int num_new_devices;
2380 unsigned int num_valid_devices;
2381 bool is_physical_device;
2382 u8 *scsi3addr;
5e6a9760
GW		 2383 unsigned int physical_index;
2384 unsigned int logical_index;
6c223761 2385 static char *out_of_memory_msg =
6de783f6 2386 "failed to allocate memory, device discovery stopped";
6c223761 2387
6c223761
KB		 2388 rc = pqi_get_device_lists(ctrl_info, &physdev_list, &logdev_list);
2389 if (rc)
2390 goto out;
2391
2392 if (physdev_list)
2393 num_physicals =
2394 get_unaligned_be32(&physdev_list->header.list_length)
2395 / sizeof(physdev_list->lun_entries[0]);
2396 else
2397 num_physicals = 0;
2398
2399 if (logdev_list)
2400 num_logicals =
2401 get_unaligned_be32(&logdev_list->header.list_length)
2402 / sizeof(logdev_list->lun_entries[0]);
2403 else
2404 num_logicals = 0;
2405
2406 if (num_physicals) {
2407 /*
2408 * We need this buffer for calls to pqi_get_physical_disk_info()
2409 * below. We allocate it here instead of inside
2410 * pqi_get_physical_disk_info() because it's a fairly large
2411 * buffer.
2412 */
2413 id_phys = kmalloc(sizeof(*id_phys), GFP_KERNEL);
2414 if (!id_phys) {
2415 dev_warn(&ctrl_info->pci_dev->dev, "%s\n",
2416 out_of_memory_msg);
2417 rc = -ENOMEM;
2418 goto out;
2419 }
522bc026 2420
694c5d5b 2421 if (pqi_hide_vsep) {
522bc026 2422 for (i = num_physicals - 1; i >= 0; i--) {
28ca6d87
MM		 2423 phys_lun = &physdev_list->lun_entries[i];
2424 if (CISS_GET_DRIVE_NUMBER(phys_lun->lunid) == PQI_VSEP_CISS_BTL) {
2425 pqi_mask_device(phys_lun->lunid);
522bc026
DC		 2426 break;
2427 }
2428 }
2429 }
6c223761
KB		 2430 }
2431
f6cc2a77
KB		 2432 if (num_logicals &&
2433 (logdev_list->header.flags & CISS_REPORT_LOG_FLAG_DRIVE_TYPE_MIX))
2434 ctrl_info->lv_drive_type_mix_valid = true;
2435
6c223761
KB		 2436 num_new_devices = num_physicals + num_logicals;
2437
6da2ec56
KC		 2438 new_device_list = kmalloc_array(num_new_devices,
2439 sizeof(*new_device_list),
2440 GFP_KERNEL);
6c223761
KB		 2441 if (!new_device_list) {
2442 dev_warn(&ctrl_info->pci_dev->dev, "%s\n", out_of_memory_msg);
2443 rc = -ENOMEM;
2444 goto out;
2445 }
2446
2447 for (i = 0; i < num_new_devices; i++) {
2448 device = kzalloc(sizeof(*device), GFP_KERNEL);
2449 if (!device) {
2450 dev_warn(&ctrl_info->pci_dev->dev, "%s\n",
2451 out_of_memory_msg);
2452 rc = -ENOMEM;
2453 goto out;
2454 }
2455 list_add_tail(&device->new_device_list_entry,
2456 &new_device_list_head);
2457 }
2458
2459 device = NULL;
2460 num_valid_devices = 0;
5e6a9760
GW		 2461 physical_index = 0;
2462 logical_index = 0;
6c223761
KB		 2463
2464 for (i = 0; i < num_new_devices; i++) {
2465
5e6a9760
GW		 2466 if ((!pqi_expose_ld_first && i < num_physicals) ||
2467 (pqi_expose_ld_first && i >= num_logicals)) {
6c223761 2468 is_physical_device = true;
28ca6d87
MM		 2469 phys_lun = &physdev_list->lun_entries[physical_index++];
2470 log_lun = NULL;
2471 scsi3addr = phys_lun->lunid;
6c223761
KB		 2472 } else {
2473 is_physical_device = false;
28ca6d87
MM		 2474 phys_lun = NULL;
2475 log_lun = &logdev_list->lun_entries[logical_index++];
2476 scsi3addr = log_lun->lunid;
6c223761
KB		 2477 }
2478
94086f5b 2479 if (is_physical_device && pqi_skip_device(scsi3addr))
6c223761
KB		 2480 continue;
2481
2482 if (device)
2483 device = list_next_entry(device, new_device_list_entry);
2484 else
2485 device = list_first_entry(&new_device_list_head,
2486 struct pqi_scsi_dev, new_device_list_entry);
2487
2488 memcpy(device->scsi3addr, scsi3addr, sizeof(device->scsi3addr));
2489 device->is_physical_device = is_physical_device;
3d46a59a 2490 if (is_physical_device) {
28ca6d87 2491 device->device_type = phys_lun->device_type;
ce143793 2492 if (device->device_type == SA_DEVICE_TYPE_EXPANDER_SMP)
3d46a59a
DB		 2493 device->is_expander_smp_device = true;
2494 } else {
bd10cf0b
KB		 2495 device->is_external_raid_device =
2496 pqi_is_external_raid_addr(scsi3addr);
3d46a59a 2497 }
6c223761 2498
ce143793
KB		 2499 if (!pqi_is_supported_device(device))
2500 continue;
2501
be76f906
DB		 2502 /* Do not present disks that the OS cannot fully probe */
2503 if (pqi_keep_device_offline(ctrl_info, device))
2504 continue;
2505
6c223761 2506 /* Gather information about the device. */
ce143793 2507 rc = pqi_get_device_info(ctrl_info, device, id_phys);
6c223761
KB		 2508 if (rc == -ENOMEM) {
2509 dev_warn(&ctrl_info->pci_dev->dev, "%s\n",
2510 out_of_memory_msg);
2511 goto out;
2512 }
2513 if (rc) {
6de783f6
KB		 2514 if (device->is_physical_device)
2515 dev_warn(&ctrl_info->pci_dev->dev,
28ca6d87
MM		 2516 "obtaining device info failed, skipping physical device %016llx%016llx\n",
2517 get_unaligned_be64(&phys_lun->wwid[0]),
2518 get_unaligned_be64(&phys_lun->wwid[8]));
6de783f6
KB		 2519 else
2520 dev_warn(&ctrl_info->pci_dev->dev,
2521 "obtaining device info failed, skipping logical device %08x%08x\n",
2522 *((u32 *)&device->scsi3addr),
2523 *((u32 *)&device->scsi3addr[4]));
6c223761
KB		 2524 rc = 0;
2525 continue;
2526 }
2527
6c223761
KB		 2528 pqi_assign_bus_target_lun(device);
2529
6c223761 2530 if (device->is_physical_device) {
00598b05 2531 memcpy(device->wwid, phys_lun->wwid, sizeof(device->wwid));
28ca6d87 2532 if ((phys_lun->device_flags &
694c5d5b 2533 CISS_REPORT_PHYS_DEV_FLAG_AIO_ENABLED) &&
28ca6d87 2534 phys_lun->aio_handle) {
583891c9
KB		 2535 device->aio_enabled = true;
2536 device->aio_handle =
28ca6d87 2537 phys_lun->aio_handle;
3d46a59a 2538 }
6c223761 2539 } else {
28ca6d87 2540 memcpy(device->volume_id, log_lun->volume_id,
6c223761
KB		 2541 sizeof(device->volume_id));
2542 }
2543
291c2e00 2544 device->sas_address = get_unaligned_be64(&device->wwid[0]);
6c223761
KB		 2545
2546 new_device_list[num_valid_devices++] = device;
2547 }
2548
2549 pqi_update_device_list(ctrl_info, new_device_list, num_valid_devices);
2550
2551out:
2552 list_for_each_entry_safe(device, next, &new_device_list_head,
2553 new_device_list_entry) {
2554 if (device->keep_device)
2555 continue;
2556 list_del(&device->new_device_list_entry);
2557 pqi_free_device(device);
2558 }
2559
2560 kfree(new_device_list);
2561 kfree(physdev_list);
2562 kfree(logdev_list);
2563 kfree(id_phys);
2564
2565 return rc;
2566}
2567
6c223761
KB		 2568static int pqi_scan_scsi_devices(struct pqi_ctrl_info *ctrl_info)
2569{
66f1c2b4
KB		 2570 int rc;
2571 int mutex_acquired;
6c223761
KB		 2572
2573 if (pqi_ctrl_offline(ctrl_info))
2574 return -ENXIO;
2575
66f1c2b4
KB		 2576 mutex_acquired = mutex_trylock(&ctrl_info->scan_mutex);
2577
2578 if (!mutex_acquired) {
2579 if (pqi_ctrl_scan_blocked(ctrl_info))
2580 return -EBUSY;
5f310425 2581 pqi_schedule_rescan_worker_delayed(ctrl_info);
66f1c2b4 2582 return -EINPROGRESS;
530dd8a7 2583 }
6c223761 2584
66f1c2b4
KB		 2585 rc = pqi_update_scsi_devices(ctrl_info);
2586 if (rc && !pqi_ctrl_scan_blocked(ctrl_info))
2587 pqi_schedule_rescan_worker_delayed(ctrl_info);
2588
2589 mutex_unlock(&ctrl_info->scan_mutex);
2590
6c223761
KB		 2591 return rc;
2592}
2593
2594static void pqi_scan_start(struct Scsi_Host *shost)
2595{
4fd22c13
MR		 2596 struct pqi_ctrl_info *ctrl_info;
2597
2598 ctrl_info = shost_to_hba(shost);
4fd22c13
MR		 2599
2600 pqi_scan_scsi_devices(ctrl_info);
6c223761
KB		 2601}
2602
2603/* Returns TRUE if scan is finished. */
2604
2605static int pqi_scan_finished(struct Scsi_Host *shost,
2606 unsigned long elapsed_time)
2607{
2608 struct pqi_ctrl_info *ctrl_info;
2609
2610 ctrl_info = shost_priv(shost);
2611
2612 return !mutex_is_locked(&ctrl_info->scan_mutex);
2613}
2614
583891c9
KB		 2615static inline void pqi_set_encryption_info(struct pqi_encryption_info *encryption_info,
2616 struct raid_map *raid_map, u64 first_block)
6c223761
KB		 2617{
2618 u32 volume_blk_size;
2619
2620 /*
2621 * Set the encryption tweak values based on logical block address.
2622 * If the block size is 512, the tweak value is equal to the LBA.
2623 * For other block sizes, tweak value is (LBA * block size) / 512.
2624 */
2625 volume_blk_size = get_unaligned_le32(&raid_map->volume_blk_size);
2626 if (volume_blk_size != 512)
2627 first_block = (first_block * volume_blk_size) / 512;
2628
2629 encryption_info->data_encryption_key_index =
2630 get_unaligned_le16(&raid_map->data_encryption_key_index);
2631 encryption_info->encrypt_tweak_lower = lower_32_bits(first_block);
2632 encryption_info->encrypt_tweak_upper = upper_32_bits(first_block);
2633}
2634
2635/*
588a63fe 2636 * Attempt to perform RAID bypass mapping for a logical volume I/O.
6c223761
KB		 2637 */
2638
6702d2c4
DB		 2639static bool pqi_aio_raid_level_supported(struct pqi_ctrl_info *ctrl_info,
2640 struct pqi_scsi_dev_raid_map_data *rmd)
281a817f
DB		 2641{
2642 bool is_supported = true;
2643
2644 switch (rmd->raid_level) {
2645 case SA_RAID_0:
2646 break;
2647 case SA_RAID_1:
f6cc2a77
KB		 2648 if (rmd->is_write && (!ctrl_info->enable_r1_writes ||
2649 rmd->data_length > ctrl_info->max_write_raid_1_10_2drive))
2650 is_supported = false;
2651 break;
7a012c23 2652 case SA_RAID_TRIPLE:
f6cc2a77
KB		 2653 if (rmd->is_write && (!ctrl_info->enable_r1_writes ||
2654 rmd->data_length > ctrl_info->max_write_raid_1_10_3drive))
281a817f
DB		 2655 is_supported = false;
2656 break;
2657 case SA_RAID_5:
f6cc2a77
KB		 2658 if (rmd->is_write && (!ctrl_info->enable_r5_writes ||
2659 rmd->data_length > ctrl_info->max_write_raid_5_6))
6702d2c4
DB		 2660 is_supported = false;
2661 break;
281a817f 2662 case SA_RAID_6:
f6cc2a77
KB		 2663 if (rmd->is_write && (!ctrl_info->enable_r6_writes ||
2664 rmd->data_length > ctrl_info->max_write_raid_5_6))
281a817f
DB		 2665 is_supported = false;
2666 break;
281a817f
DB		 2667 default:
2668 is_supported = false;
f6cc2a77 2669 break;
281a817f
DB		 2670 }
2671
2672 return is_supported;
2673}
2674
6c223761
KB		 2675#define PQI_RAID_BYPASS_INELIGIBLE 1
2676
281a817f 2677static int pqi_get_aio_lba_and_block_count(struct scsi_cmnd *scmd,
583891c9 2678 struct pqi_scsi_dev_raid_map_data *rmd)
6c223761 2679{
6c223761
KB		 2680 /* Check for valid opcode, get LBA and block count. */
2681 switch (scmd->cmnd[0]) {
2682 case WRITE_6:
281a817f 2683 rmd->is_write = true;
df561f66 2684 fallthrough;
6c223761 2685 case READ_6:
281a817f 2686 rmd->first_block = (u64)(((scmd->cmnd[1] & 0x1f) << 16) |
e018ef57 2687 (scmd->cmnd[2] << 8) | scmd->cmnd[3]);
281a817f
DB		 2688 rmd->block_cnt = (u32)scmd->cmnd[4];
2689 if (rmd->block_cnt == 0)
2690 rmd->block_cnt = 256;
6c223761
KB		 2691 break;
2692 case WRITE_10:
281a817f 2693 rmd->is_write = true;
df561f66 2694 fallthrough;
6c223761 2695 case READ_10:
281a817f
DB		 2696 rmd->first_block = (u64)get_unaligned_be32(&scmd->cmnd[2]);
2697 rmd->block_cnt = (u32)get_unaligned_be16(&scmd->cmnd[7]);
6c223761
KB		 2698 break;
2699 case WRITE_12:
281a817f 2700 rmd->is_write = true;
df561f66 2701 fallthrough;
6c223761 2702 case READ_12:
281a817f
DB		 2703 rmd->first_block = (u64)get_unaligned_be32(&scmd->cmnd[2]);
2704 rmd->block_cnt = get_unaligned_be32(&scmd->cmnd[6]);
6c223761
KB		 2705 break;
2706 case WRITE_16:
281a817f 2707 rmd->is_write = true;
df561f66 2708 fallthrough;
6c223761 2709 case READ_16:
281a817f
DB		 2710 rmd->first_block = get_unaligned_be64(&scmd->cmnd[2]);
2711 rmd->block_cnt = get_unaligned_be32(&scmd->cmnd[10]);
6c223761
KB		 2712 break;
2713 default:
2714 /* Process via normal I/O path. */
2715 return PQI_RAID_BYPASS_INELIGIBLE;
2716 }
2717
281a817f 2718 put_unaligned_le32(scsi_bufflen(scmd), &rmd->data_length);
6c223761 2719
281a817f
DB		 2720 return 0;
2721}
6c223761 2722
281a817f 2723static int pci_get_aio_common_raid_map_values(struct pqi_ctrl_info *ctrl_info,
583891c9 2724 struct pqi_scsi_dev_raid_map_data *rmd, struct raid_map *raid_map)
281a817f
DB		 2725{
2726#if BITS_PER_LONG == 32
2727 u64 tmpdiv;
2728#endif
2729
2730 rmd->last_block = rmd->first_block + rmd->block_cnt - 1;
6c223761
KB		 2731
2732 /* Check for invalid block or wraparound. */
281a817f
DB		 2733 if (rmd->last_block >=
2734 get_unaligned_le64(&raid_map->volume_blk_cnt) ||
2735 rmd->last_block < rmd->first_block)
6c223761
KB		 2736 return PQI_RAID_BYPASS_INELIGIBLE;
2737
281a817f 2738 rmd->data_disks_per_row =
583891c9 2739 get_unaligned_le16(&raid_map->data_disks_per_row);
281a817f
DB		 2740 rmd->strip_size = get_unaligned_le16(&raid_map->strip_size);
2741 rmd->layout_map_count = get_unaligned_le16(&raid_map->layout_map_count);
6c223761
KB		 2742
2743 /* Calculate stripe information for the request. */
281a817f 2744 rmd->blocks_per_row = rmd->data_disks_per_row * rmd->strip_size;
667298ce
DB		 2745 if (rmd->blocks_per_row == 0) /* Used as a divisor in many calculations */
2746 return PQI_RAID_BYPASS_INELIGIBLE;
6c223761 2747#if BITS_PER_LONG == 32
281a817f
DB		 2748 tmpdiv = rmd->first_block;
2749 do_div(tmpdiv, rmd->blocks_per_row);
2750 rmd->first_row = tmpdiv;
2751 tmpdiv = rmd->last_block;
2752 do_div(tmpdiv, rmd->blocks_per_row);
2753 rmd->last_row = tmpdiv;
2754 rmd->first_row_offset = (u32)(rmd->first_block - (rmd->first_row * rmd->blocks_per_row));
2755 rmd->last_row_offset = (u32)(rmd->last_block - (rmd->last_row * rmd->blocks_per_row));
2756 tmpdiv = rmd->first_row_offset;
2757 do_div(tmpdiv, rmd->strip_size);
2758 rmd->first_column = tmpdiv;
2759 tmpdiv = rmd->last_row_offset;
2760 do_div(tmpdiv, rmd->strip_size);
2761 rmd->last_column = tmpdiv;
6c223761 2762#else
281a817f
DB		 2763 rmd->first_row = rmd->first_block / rmd->blocks_per_row;
2764 rmd->last_row = rmd->last_block / rmd->blocks_per_row;
2765 rmd->first_row_offset = (u32)(rmd->first_block -
583891c9 2766 (rmd->first_row * rmd->blocks_per_row));
281a817f 2767 rmd->last_row_offset = (u32)(rmd->last_block - (rmd->last_row *
583891c9 2768 rmd->blocks_per_row));
281a817f
DB		 2769 rmd->first_column = rmd->first_row_offset / rmd->strip_size;
2770 rmd->last_column = rmd->last_row_offset / rmd->strip_size;
6c223761
KB		 2771#endif
2772
2773 /* If this isn't a single row/column then give to the controller. */
281a817f 2774 if (rmd->first_row != rmd->last_row ||
583891c9 2775 rmd->first_column != rmd->last_column)
6c223761
KB		 2776 return PQI_RAID_BYPASS_INELIGIBLE;
2777
2778 /* Proceeding with driver mapping. */
281a817f 2779 rmd->total_disks_per_row = rmd->data_disks_per_row +
6c223761 2780 get_unaligned_le16(&raid_map->metadata_disks_per_row);
281a817f
DB		 2781 rmd->map_row = ((u32)(rmd->first_row >>
2782 raid_map->parity_rotation_shift)) %
6c223761 2783 get_unaligned_le16(&raid_map->row_cnt);
281a817f 2784 rmd->map_index = (rmd->map_row * rmd->total_disks_per_row) +
583891c9 2785 rmd->first_column;
6c223761 2786
281a817f
DB		 2787 return 0;
2788}
6c223761 2789
281a817f 2790static int pqi_calc_aio_r5_or_r6(struct pqi_scsi_dev_raid_map_data *rmd,
583891c9 2791 struct raid_map *raid_map)
281a817f 2792{
6c223761 2793#if BITS_PER_LONG == 32
281a817f 2794 u64 tmpdiv;
6c223761 2795#endif
6c223761 2796
667298ce
DB		 2797 if (rmd->blocks_per_row == 0) /* Used as a divisor in many calculations */
2798 return PQI_RAID_BYPASS_INELIGIBLE;
2799
281a817f 2800 /* RAID 50/60 */
583891c9 2801 /* Verify first and last block are in same RAID group. */
281a817f 2802 rmd->stripesize = rmd->blocks_per_row * rmd->layout_map_count;
6c223761 2803#if BITS_PER_LONG == 32
281a817f
DB		 2804 tmpdiv = rmd->first_block;
2805 rmd->first_group = do_div(tmpdiv, rmd->stripesize);
2806 tmpdiv = rmd->first_group;
2807 do_div(tmpdiv, rmd->blocks_per_row);
2808 rmd->first_group = tmpdiv;
2809 tmpdiv = rmd->last_block;
2810 rmd->last_group = do_div(tmpdiv, rmd->stripesize);
2811 tmpdiv = rmd->last_group;
2812 do_div(tmpdiv, rmd->blocks_per_row);
2813 rmd->last_group = tmpdiv;
6c223761 2814#else
281a817f
DB		 2815 rmd->first_group = (rmd->first_block % rmd->stripesize) / rmd->blocks_per_row;
2816 rmd->last_group = (rmd->last_block % rmd->stripesize) / rmd->blocks_per_row;
6c223761 2817#endif
281a817f
DB		 2818 if (rmd->first_group != rmd->last_group)
2819 return PQI_RAID_BYPASS_INELIGIBLE;
6c223761 2820
583891c9 2821 /* Verify request is in a single row of RAID 5/6. */
6c223761 2822#if BITS_PER_LONG == 32
281a817f
DB		 2823 tmpdiv = rmd->first_block;
2824 do_div(tmpdiv, rmd->stripesize);
2825 rmd->first_row = tmpdiv;
2826 rmd->r5or6_first_row = tmpdiv;
2827 tmpdiv = rmd->last_block;
2828 do_div(tmpdiv, rmd->stripesize);
2829 rmd->r5or6_last_row = tmpdiv;
6c223761 2830#else
281a817f
DB		 2831 rmd->first_row = rmd->r5or6_first_row =
2832 rmd->first_block / rmd->stripesize;
2833 rmd->r5or6_last_row = rmd->last_block / rmd->stripesize;
6c223761 2834#endif
281a817f
DB		 2835 if (rmd->r5or6_first_row != rmd->r5or6_last_row)
2836 return PQI_RAID_BYPASS_INELIGIBLE;
6c223761 2837
583891c9 2838 /* Verify request is in a single column. */
6c223761 2839#if BITS_PER_LONG == 32
281a817f
DB		 2840 tmpdiv = rmd->first_block;
2841 rmd->first_row_offset = do_div(tmpdiv, rmd->stripesize);
2842 tmpdiv = rmd->first_row_offset;
2843 rmd->first_row_offset = (u32)do_div(tmpdiv, rmd->blocks_per_row);
2844 rmd->r5or6_first_row_offset = rmd->first_row_offset;
2845 tmpdiv = rmd->last_block;
2846 rmd->r5or6_last_row_offset = do_div(tmpdiv, rmd->stripesize);
2847 tmpdiv = rmd->r5or6_last_row_offset;
2848 rmd->r5or6_last_row_offset = do_div(tmpdiv, rmd->blocks_per_row);
2849 tmpdiv = rmd->r5or6_first_row_offset;
2850 do_div(tmpdiv, rmd->strip_size);
2851 rmd->first_column = rmd->r5or6_first_column = tmpdiv;
2852 tmpdiv = rmd->r5or6_last_row_offset;
2853 do_div(tmpdiv, rmd->strip_size);
2854 rmd->r5or6_last_column = tmpdiv;
6c223761 2855#else
281a817f 2856 rmd->first_row_offset = rmd->r5or6_first_row_offset =
583891c9
KB		 2857 (u32)((rmd->first_block % rmd->stripesize) %
2858 rmd->blocks_per_row);
281a817f
DB		 2859
2860 rmd->r5or6_last_row_offset =
2861 (u32)((rmd->last_block % rmd->stripesize) %
2862 rmd->blocks_per_row);
2863
2864 rmd->first_column =
583891c9 2865 rmd->r5or6_first_row_offset / rmd->strip_size;
281a817f
DB		 2866 rmd->r5or6_first_column = rmd->first_column;
2867 rmd->r5or6_last_column = rmd->r5or6_last_row_offset / rmd->strip_size;
2868#endif
2869 if (rmd->r5or6_first_column != rmd->r5or6_last_column)
2870 return PQI_RAID_BYPASS_INELIGIBLE;
2871
583891c9 2872 /* Request is eligible. */
281a817f
DB		 2873 rmd->map_row =
2874 ((u32)(rmd->first_row >> raid_map->parity_rotation_shift)) %
2875 get_unaligned_le16(&raid_map->row_cnt);
6c223761 2876
281a817f
DB		 2877 rmd->map_index = (rmd->first_group *
2878 (get_unaligned_le16(&raid_map->row_cnt) *
2879 rmd->total_disks_per_row)) +
2880 (rmd->map_row * rmd->total_disks_per_row) + rmd->first_column;
6c223761 2881
6702d2c4
DB		 2882 if (rmd->is_write) {
2883 u32 index;
6c223761 2884
6702d2c4
DB		 2885 /*
2886 * p_parity_it_nexus and q_parity_it_nexus are pointers to the
2887 * parity entries inside the device's raid_map.
2888 *
2889 * A device's RAID map is bounded by: number of RAID disks squared.
2890 *
2891 * The devices RAID map size is checked during device
2892 * initialization.
2893 */
2894 index = DIV_ROUND_UP(rmd->map_index + 1, rmd->total_disks_per_row);
2895 index *= rmd->total_disks_per_row;
2896 index -= get_unaligned_le16(&raid_map->metadata_disks_per_row);
2897
2898 rmd->p_parity_it_nexus = raid_map->disk_data[index].aio_handle;
2899 if (rmd->raid_level == SA_RAID_6) {
2900 rmd->q_parity_it_nexus = raid_map->disk_data[index + 1].aio_handle;
2901 rmd->xor_mult = raid_map->disk_data[rmd->map_index].xor_mult[1];
2902 }
6702d2c4
DB		 2903#if BITS_PER_LONG == 32
2904 tmpdiv = rmd->first_block;
2905 do_div(tmpdiv, rmd->blocks_per_row);
2906 rmd->row = tmpdiv;
2907#else
2908 rmd->row = rmd->first_block / rmd->blocks_per_row;
6c223761 2909#endif
6702d2c4
DB		 2910 }
2911
281a817f
DB		 2912 return 0;
2913}
2914
2915static void pqi_set_aio_cdb(struct pqi_scsi_dev_raid_map_data *rmd)
2916{
2917 /* Build the new CDB for the physical disk I/O. */
2918 if (rmd->disk_block > 0xffffffff) {
2919 rmd->cdb[0] = rmd->is_write ? WRITE_16 : READ_16;
2920 rmd->cdb[1] = 0;
2921 put_unaligned_be64(rmd->disk_block, &rmd->cdb[2]);
2922 put_unaligned_be32(rmd->disk_block_cnt, &rmd->cdb[10]);
2923 rmd->cdb[14] = 0;
2924 rmd->cdb[15] = 0;
2925 rmd->cdb_length = 16;
2926 } else {
2927 rmd->cdb[0] = rmd->is_write ? WRITE_10 : READ_10;
2928 rmd->cdb[1] = 0;
2929 put_unaligned_be32((u32)rmd->disk_block, &rmd->cdb[2]);
2930 rmd->cdb[6] = 0;
2931 put_unaligned_be16((u16)rmd->disk_block_cnt, &rmd->cdb[7]);
2932 rmd->cdb[9] = 0;
2933 rmd->cdb_length = 10;
2934 }
2935}
2936
7a012c23 2937static void pqi_calc_aio_r1_nexus(struct raid_map *raid_map,
583891c9 2938 struct pqi_scsi_dev_raid_map_data *rmd)
7a012c23
DB		 2939{
2940 u32 index;
2941 u32 group;
2942
2943 group = rmd->map_index / rmd->data_disks_per_row;
2944
2945 index = rmd->map_index - (group * rmd->data_disks_per_row);
2946 rmd->it_nexus[0] = raid_map->disk_data[index].aio_handle;
2947 index += rmd->data_disks_per_row;
2948 rmd->it_nexus[1] = raid_map->disk_data[index].aio_handle;
2949 if (rmd->layout_map_count > 2) {
2950 index += rmd->data_disks_per_row;
2951 rmd->it_nexus[2] = raid_map->disk_data[index].aio_handle;
2952 }
2953
2954 rmd->num_it_nexus_entries = rmd->layout_map_count;
2955}
2956
281a817f
DB		 2957static int pqi_raid_bypass_submit_scsi_cmd(struct pqi_ctrl_info *ctrl_info,
2958 struct pqi_scsi_dev *device, struct scsi_cmnd *scmd,
2959 struct pqi_queue_group *queue_group)
2960{
281a817f 2961 int rc;
7a012c23
DB		 2962 struct raid_map *raid_map;
2963 u32 group;
2964 u32 next_bypass_group;
281a817f
DB		 2965 struct pqi_encryption_info *encryption_info_ptr;
2966 struct pqi_encryption_info encryption_info;
583891c9 2967 struct pqi_scsi_dev_raid_map_data rmd = { 0 };
281a817f
DB		 2968
2969 rc = pqi_get_aio_lba_and_block_count(scmd, &rmd);
2970 if (rc)
2971 return PQI_RAID_BYPASS_INELIGIBLE;
2972
2973 rmd.raid_level = device->raid_level;
6c223761 2974
6702d2c4 2975 if (!pqi_aio_raid_level_supported(ctrl_info, &rmd))
281a817f
DB		 2976 return PQI_RAID_BYPASS_INELIGIBLE;
2977
2978 if (unlikely(rmd.block_cnt == 0))
2979 return PQI_RAID_BYPASS_INELIGIBLE;
2980
2981 raid_map = device->raid_map;
6c223761 2982
281a817f
DB		 2983 rc = pci_get_aio_common_raid_map_values(ctrl_info, &rmd, raid_map);
2984 if (rc)
2985 return PQI_RAID_BYPASS_INELIGIBLE;
6c223761 2986
7a012c23
DB		 2987 if (device->raid_level == SA_RAID_1 ||
2988 device->raid_level == SA_RAID_TRIPLE) {
2989 if (rmd.is_write) {
2990 pqi_calc_aio_r1_nexus(raid_map, &rmd);
2991 } else {
5d8fbce0 2992 group = device->next_bypass_group[rmd.map_index];
7a012c23
DB		 2993 next_bypass_group = group + 1;
2994 if (next_bypass_group >= rmd.layout_map_count)
2995 next_bypass_group = 0;
5d8fbce0 2996 device->next_bypass_group[rmd.map_index] = next_bypass_group;
7a012c23
DB		 2997 rmd.map_index += group * rmd.data_disks_per_row;
2998 }
281a817f 2999 } else if ((device->raid_level == SA_RAID_5 ||
6702d2c4
DB		 3000 device->raid_level == SA_RAID_6) &&
3001 (rmd.layout_map_count > 1 || rmd.is_write)) {
281a817f
DB		 3002 rc = pqi_calc_aio_r5_or_r6(&rmd, raid_map);
3003 if (rc)
3004 return PQI_RAID_BYPASS_INELIGIBLE;
6c223761
KB		 3005 }
3006
281a817f
DB		 3007 if (unlikely(rmd.map_index >= RAID_MAP_MAX_ENTRIES))
3008 return PQI_RAID_BYPASS_INELIGIBLE;
3009
3010 rmd.aio_handle = raid_map->disk_data[rmd.map_index].aio_handle;
3011 rmd.disk_block = get_unaligned_le64(&raid_map->disk_starting_blk) +
3012 rmd.first_row * rmd.strip_size +
3013 (rmd.first_row_offset - rmd.first_column * rmd.strip_size);
3014 rmd.disk_block_cnt = rmd.block_cnt;
6c223761
KB		 3015
3016 /* Handle differing logical/physical block sizes. */
3017 if (raid_map->phys_blk_shift) {
281a817f
DB		 3018 rmd.disk_block <<= raid_map->phys_blk_shift;
3019 rmd.disk_block_cnt <<= raid_map->phys_blk_shift;
6c223761
KB		 3020 }
3021
281a817f 3022 if (unlikely(rmd.disk_block_cnt > 0xffff))
6c223761
KB		 3023 return PQI_RAID_BYPASS_INELIGIBLE;
3024
281a817f 3025 pqi_set_aio_cdb(&rmd);
6c223761 3026
583891c9 3027 if (get_unaligned_le16(&raid_map->flags) & RAID_MAP_ENCRYPTION_ENABLED) {
f6cc2a77
KB		 3028 if (rmd.data_length > device->max_transfer_encrypted)
3029 return PQI_RAID_BYPASS_INELIGIBLE;
583891c9 3030 pqi_set_encryption_info(&encryption_info, raid_map, rmd.first_block);
6c223761
KB		 3031 encryption_info_ptr = &encryption_info;
3032 } else {
3033 encryption_info_ptr = NULL;
3034 }
3035
6702d2c4
DB		 3036 if (rmd.is_write) {
3037 switch (device->raid_level) {
7a012c23
DB		 3038 case SA_RAID_1:
3039 case SA_RAID_TRIPLE:
3040 return pqi_aio_submit_r1_write_io(ctrl_info, scmd, queue_group,
3041 encryption_info_ptr, device, &rmd);
6702d2c4
DB		 3042 case SA_RAID_5:
3043 case SA_RAID_6:
3044 return pqi_aio_submit_r56_write_io(ctrl_info, scmd, queue_group,
583891c9 3045 encryption_info_ptr, device, &rmd);
6702d2c4 3046 }
6702d2c4
DB		 3047 }
3048
f6cc2a77
KB		 3049 return pqi_aio_submit_io(ctrl_info, scmd, rmd.aio_handle,
3050 rmd.cdb, rmd.cdb_length, queue_group,
2a47834d 3051 encryption_info_ptr, true, false);
6c223761
KB		 3052}
3053
3054#define PQI_STATUS_IDLE 0x0
3055
3056#define PQI_CREATE_ADMIN_QUEUE_PAIR 1
3057#define PQI_DELETE_ADMIN_QUEUE_PAIR 2
3058
3059#define PQI_DEVICE_STATE_POWER_ON_AND_RESET 0x0
3060#define PQI_DEVICE_STATE_STATUS_AVAILABLE 0x1
3061#define PQI_DEVICE_STATE_ALL_REGISTERS_READY 0x2
3062#define PQI_DEVICE_STATE_ADMIN_QUEUE_PAIR_READY 0x3
3063#define PQI_DEVICE_STATE_ERROR 0x4
3064
3065#define PQI_MODE_READY_TIMEOUT_SECS 30
3066#define PQI_MODE_READY_POLL_INTERVAL_MSECS 1
3067
3068static int pqi_wait_for_pqi_mode_ready(struct pqi_ctrl_info *ctrl_info)
3069{
3070 struct pqi_device_registers __iomem *pqi_registers;
3071 unsigned long timeout;
3072 u64 signature;
3073 u8 status;
3074
3075 pqi_registers = ctrl_info->pqi_registers;
42dc0426 3076 timeout = (PQI_MODE_READY_TIMEOUT_SECS * HZ) + jiffies;
6c223761
KB		 3077
3078 while (1) {
3079 signature = readq(&pqi_registers->signature);
3080 if (memcmp(&signature, PQI_DEVICE_SIGNATURE,
3081 sizeof(signature)) == 0)
3082 break;
3083 if (time_after(jiffies, timeout)) {
3084 dev_err(&ctrl_info->pci_dev->dev,
3085 "timed out waiting for PQI signature\n");
3086 return -ETIMEDOUT;
3087 }
3088 msleep(PQI_MODE_READY_POLL_INTERVAL_MSECS);
3089 }
3090
3091 while (1) {
3092 status = readb(&pqi_registers->function_and_status_code);
3093 if (status == PQI_STATUS_IDLE)
3094 break;
3095 if (time_after(jiffies, timeout)) {
3096 dev_err(&ctrl_info->pci_dev->dev,
3097 "timed out waiting for PQI IDLE\n");
3098 return -ETIMEDOUT;
3099 }
3100 msleep(PQI_MODE_READY_POLL_INTERVAL_MSECS);
3101 }
3102
3103 while (1) {
3104 if (readl(&pqi_registers->device_status) ==
3105 PQI_DEVICE_STATE_ALL_REGISTERS_READY)
3106 break;
3107 if (time_after(jiffies, timeout)) {
3108 dev_err(&ctrl_info->pci_dev->dev,
3109 "timed out waiting for PQI all registers ready\n");
3110 return -ETIMEDOUT;
3111 }
3112 msleep(PQI_MODE_READY_POLL_INTERVAL_MSECS);
3113 }
3114
3115 return 0;
3116}
3117
3118static inline void pqi_aio_path_disabled(struct pqi_io_request *io_request)
3119{
3120 struct pqi_scsi_dev *device;
3121
3122 device = io_request->scmd->device->hostdata;
588a63fe 3123 device->raid_bypass_enabled = false;
376fb880 3124 device->aio_enabled = false;
6c223761
KB		 3125}
3126
d87d5474 3127static inline void pqi_take_device_offline(struct scsi_device *sdev, char *path)
6c223761
KB		 3128{
3129 struct pqi_ctrl_info *ctrl_info;
e58081a7 3130 struct pqi_scsi_dev *device;
6c223761 3131
03b288cf
KB		 3132 device = sdev->hostdata;
3133 if (device->device_offline)
3134 return;
3135
3136 device->device_offline = true;
03b288cf
KB		 3137 ctrl_info = shost_to_hba(sdev->host);
3138 pqi_schedule_rescan_worker(ctrl_info);
a9a68101 3139 dev_err(&ctrl_info->pci_dev->dev, "re-scanning %s scsi %d:%d:%d:%d\n",
03b288cf
KB		 3140 path, ctrl_info->scsi_host->host_no, device->bus,
3141 device->target, device->lun);
6c223761
KB		 3142}
3143
3144static void pqi_process_raid_io_error(struct pqi_io_request *io_request)
3145{
3146 u8 scsi_status;
3147 u8 host_byte;
3148 struct scsi_cmnd *scmd;
3149 struct pqi_raid_error_info *error_info;
3150 size_t sense_data_length;
3151 int residual_count;
3152 int xfer_count;
3153 struct scsi_sense_hdr sshdr;
3154
3155 scmd = io_request->scmd;
3156 if (!scmd)
3157 return;
3158
3159 error_info = io_request->error_info;
3160 scsi_status = error_info->status;
3161 host_byte = DID_OK;
3162
f5b63206
KB		 3163 switch (error_info->data_out_result) {
3164 case PQI_DATA_IN_OUT_GOOD:
3165 break;
3166 case PQI_DATA_IN_OUT_UNDERFLOW:
6c223761
KB		 3167 xfer_count =
3168 get_unaligned_le32(&error_info->data_out_transferred);
3169 residual_count = scsi_bufflen(scmd) - xfer_count;
3170 scsi_set_resid(scmd, residual_count);
3171 if (xfer_count < scmd->underflow)
3172 host_byte = DID_SOFT_ERROR;
f5b63206
KB		 3173 break;
3174 case PQI_DATA_IN_OUT_UNSOLICITED_ABORT:
3175 case PQI_DATA_IN_OUT_ABORTED:
3176 host_byte = DID_ABORT;
3177 break;
3178 case PQI_DATA_IN_OUT_TIMEOUT:
3179 host_byte = DID_TIME_OUT;
3180 break;
3181 case PQI_DATA_IN_OUT_BUFFER_OVERFLOW:
3182 case PQI_DATA_IN_OUT_PROTOCOL_ERROR:
3183 case PQI_DATA_IN_OUT_BUFFER_ERROR:
3184 case PQI_DATA_IN_OUT_BUFFER_OVERFLOW_DESCRIPTOR_AREA:
3185 case PQI_DATA_IN_OUT_BUFFER_OVERFLOW_BRIDGE:
3186 case PQI_DATA_IN_OUT_ERROR:
3187 case PQI_DATA_IN_OUT_HARDWARE_ERROR:
3188 case PQI_DATA_IN_OUT_PCIE_FABRIC_ERROR:
3189 case PQI_DATA_IN_OUT_PCIE_COMPLETION_TIMEOUT:
3190 case PQI_DATA_IN_OUT_PCIE_COMPLETER_ABORT_RECEIVED:
3191 case PQI_DATA_IN_OUT_PCIE_UNSUPPORTED_REQUEST_RECEIVED:
3192 case PQI_DATA_IN_OUT_PCIE_ECRC_CHECK_FAILED:
3193 case PQI_DATA_IN_OUT_PCIE_UNSUPPORTED_REQUEST:
3194 case PQI_DATA_IN_OUT_PCIE_ACS_VIOLATION:
3195 case PQI_DATA_IN_OUT_PCIE_TLP_PREFIX_BLOCKED:
3196 case PQI_DATA_IN_OUT_PCIE_POISONED_MEMORY_READ:
3197 default:
3198 host_byte = DID_ERROR;
3199 break;
6c223761
KB		 3200 }
3201
3202 sense_data_length = get_unaligned_le16(&error_info->sense_data_length);
3203 if (sense_data_length == 0)
3204 sense_data_length =
3205 get_unaligned_le16(&error_info->response_data_length);
3206 if (sense_data_length) {
3207 if (sense_data_length > sizeof(error_info->data))
3208 sense_data_length = sizeof(error_info->data);
3209
3210 if (scsi_status == SAM_STAT_CHECK_CONDITION &&
3211 scsi_normalize_sense(error_info->data,
3212 sense_data_length, &sshdr) &&
3213 sshdr.sense_key == HARDWARE_ERROR &&
8ef860ae 3214 sshdr.asc == 0x3e) {
441b7195
EV		 3215 struct pqi_ctrl_info *ctrl_info = shost_to_hba(scmd->device->host);
3216 struct pqi_scsi_dev *device = scmd->device->hostdata;
3217
8ef860ae
EV		 3218 switch (sshdr.ascq) {
3219 case 0x1: /* LOGICAL UNIT FAILURE */
3220 if (printk_ratelimit())
3221 scmd_printk(KERN_ERR, scmd, "received 'logical unit failure' from controller for scsi %d:%d:%d:%d\n",
3222 ctrl_info->scsi_host->host_no, device->bus, device->target, device->lun);
3223 pqi_take_device_offline(scmd->device, "RAID");
3224 host_byte = DID_NO_CONNECT;
3225 break;
3226
3227 default: /* See http://www.t10.org/lists/asc-num.htm#ASC_3E */
3228 if (printk_ratelimit())
3229 scmd_printk(KERN_ERR, scmd, "received unhandled error %d from controller for scsi %d:%d:%d:%d\n",
3230 sshdr.ascq, ctrl_info->scsi_host->host_no, device->bus, device->target, device->lun);
3231 break;
3232 }
6c223761
KB		 3233 }
3234
3235 if (sense_data_length > SCSI_SENSE_BUFFERSIZE)
3236 sense_data_length = SCSI_SENSE_BUFFERSIZE;
3237 memcpy(scmd->sense_buffer, error_info->data,
3238 sense_data_length);
3239 }
3240
3241 scmd->result = scsi_status;
3242 set_host_byte(scmd, host_byte);
3243}
3244
3245static void pqi_process_aio_io_error(struct pqi_io_request *io_request)
3246{
3247 u8 scsi_status;
3248 u8 host_byte;
3249 struct scsi_cmnd *scmd;
3250 struct pqi_aio_error_info *error_info;
3251 size_t sense_data_length;
3252 int residual_count;
3253 int xfer_count;
3254 bool device_offline;
94a68c81 3255 struct pqi_scsi_dev *device;
6c223761
KB		 3256
3257 scmd = io_request->scmd;
3258 error_info = io_request->error_info;
3259 host_byte = DID_OK;
3260 sense_data_length = 0;
3261 device_offline = false;
94a68c81 3262 device = scmd->device->hostdata;
6c223761
KB		 3263
3264 switch (error_info->service_response) {
3265 case PQI_AIO_SERV_RESPONSE_COMPLETE:
3266 scsi_status = error_info->status;
3267 break;
3268 case PQI_AIO_SERV_RESPONSE_FAILURE:
3269 switch (error_info->status) {
3270 case PQI_AIO_STATUS_IO_ABORTED:
3271 scsi_status = SAM_STAT_TASK_ABORTED;
3272 break;
3273 case PQI_AIO_STATUS_UNDERRUN:
3274 scsi_status = SAM_STAT_GOOD;
3275 residual_count = get_unaligned_le32(
3276 &error_info->residual_count);
3277 scsi_set_resid(scmd, residual_count);
3278 xfer_count = scsi_bufflen(scmd) - residual_count;
3279 if (xfer_count < scmd->underflow)
3280 host_byte = DID_SOFT_ERROR;
3281 break;
3282 case PQI_AIO_STATUS_OVERRUN:
3283 scsi_status = SAM_STAT_GOOD;
3284 break;
3285 case PQI_AIO_STATUS_AIO_PATH_DISABLED:
3286 pqi_aio_path_disabled(io_request);
94a68c81
MB		 3287 if (pqi_is_multipath_device(device)) {
3288 pqi_device_remove_start(device);
3289 host_byte = DID_NO_CONNECT;
3290 scsi_status = SAM_STAT_CHECK_CONDITION;
3291 } else {
3292 scsi_status = SAM_STAT_GOOD;
3293 io_request->status = -EAGAIN;
3294 }
6c223761
KB		 3295 break;
3296 case PQI_AIO_STATUS_NO_PATH_TO_DEVICE:
3297 case PQI_AIO_STATUS_INVALID_DEVICE:
376fb880
KB		 3298 if (!io_request->raid_bypass) {
3299 device_offline = true;
3300 pqi_take_device_offline(scmd->device, "AIO");
3301 host_byte = DID_NO_CONNECT;
3302 }
6c223761
KB		 3303 scsi_status = SAM_STAT_CHECK_CONDITION;
3304 break;
3305 case PQI_AIO_STATUS_IO_ERROR:
3306 default:
3307 scsi_status = SAM_STAT_CHECK_CONDITION;
3308 break;
3309 }
3310 break;
3311 case PQI_AIO_SERV_RESPONSE_TMF_COMPLETE:
3312 case PQI_AIO_SERV_RESPONSE_TMF_SUCCEEDED:
3313 scsi_status = SAM_STAT_GOOD;
3314 break;
3315 case PQI_AIO_SERV_RESPONSE_TMF_REJECTED:
3316 case PQI_AIO_SERV_RESPONSE_TMF_INCORRECT_LUN:
3317 default:
3318 scsi_status = SAM_STAT_CHECK_CONDITION;
3319 break;
3320 }
3321
3322 if (error_info->data_present) {
3323 sense_data_length =
3324 get_unaligned_le16(&error_info->data_length);
3325 if (sense_data_length) {
3326 if (sense_data_length > sizeof(error_info->data))
3327 sense_data_length = sizeof(error_info->data);
3328 if (sense_data_length > SCSI_SENSE_BUFFERSIZE)
3329 sense_data_length = SCSI_SENSE_BUFFERSIZE;
3330 memcpy(scmd->sense_buffer, error_info->data,
3331 sense_data_length);
3332 }
3333 }
3334
3335 if (device_offline && sense_data_length == 0)
f2b1e9c6 3336 scsi_build_sense(scmd, 0, HARDWARE_ERROR, 0x3e, 0x1);
6c223761
KB		 3337
3338 scmd->result = scsi_status;
3339 set_host_byte(scmd, host_byte);
3340}
3341
3342static void pqi_process_io_error(unsigned int iu_type,
3343 struct pqi_io_request *io_request)
3344{
3345 switch (iu_type) {
3346 case PQI_RESPONSE_IU_RAID_PATH_IO_ERROR:
3347 pqi_process_raid_io_error(io_request);
3348 break;
3349 case PQI_RESPONSE_IU_AIO_PATH_IO_ERROR:
3350 pqi_process_aio_io_error(io_request);
3351 break;
3352 }
3353}
3354
18ff5f08 3355static int pqi_interpret_task_management_response(struct pqi_ctrl_info *ctrl_info,
6c223761
KB		 3356 struct pqi_task_management_response *response)
3357{
3358 int rc;
3359
3360 switch (response->response_code) {
b17f0486
KB		 3361 case SOP_TMF_COMPLETE:
3362 case SOP_TMF_FUNCTION_SUCCEEDED:
6c223761
KB		 3363 rc = 0;
3364 break;
3406384b
MR		 3365 case SOP_TMF_REJECTED:
3366 rc = -EAGAIN;
3367 break;
4e7d2602
MM		 3368 case SOP_RC_INCORRECT_LOGICAL_UNIT:
3369 rc = -ENODEV;
3370 break;
6c223761
KB		 3371 default:
3372 rc = -EIO;
3373 break;
3374 }
3375
18ff5f08
KB		 3376 if (rc)
3377 dev_err(&ctrl_info->pci_dev->dev,
3378 "Task Management Function error: %d (response code: %u)\n", rc, response->response_code);
3379
6c223761
KB		 3380 return rc;
3381}
3382
5d1f03e6
MB		 3383static inline void pqi_invalid_response(struct pqi_ctrl_info *ctrl_info,
3384 enum pqi_ctrl_shutdown_reason ctrl_shutdown_reason)
6c223761 3385{
5d1f03e6 3386 pqi_take_ctrl_offline(ctrl_info, ctrl_shutdown_reason);
9e68cccc
KB		 3387}
3388
3389static int pqi_process_io_intr(struct pqi_ctrl_info *ctrl_info, struct pqi_queue_group *queue_group)
6c223761 3390{
9e68cccc 3391 int num_responses;
6c223761
KB		 3392 pqi_index_t oq_pi;
3393 pqi_index_t oq_ci;
3394 struct pqi_io_request *io_request;
3395 struct pqi_io_response *response;
3396 u16 request_id;
3397
3398 num_responses = 0;
3399 oq_ci = queue_group->oq_ci_copy;
3400
3401 while (1) {
dac12fbc 3402 oq_pi = readl(queue_group->oq_pi);
9e68cccc 3403 if (oq_pi >= ctrl_info->num_elements_per_oq) {
5d1f03e6 3404 pqi_invalid_response(ctrl_info, PQI_IO_PI_OUT_OF_RANGE);
9e68cccc
KB		 3405 dev_err(&ctrl_info->pci_dev->dev,
3406 "I/O interrupt: producer index (%u) out of range (0-%u): consumer index: %u\n",
3407 oq_pi, ctrl_info->num_elements_per_oq - 1, oq_ci);
3408 return -1;
3409 }
6c223761
KB		 3410 if (oq_pi == oq_ci)
3411 break;
3412
3413 num_responses++;
3414 response = queue_group->oq_element_array +
3415 (oq_ci * PQI_OPERATIONAL_OQ_ELEMENT_LENGTH);
3416
3417 request_id = get_unaligned_le16(&response->request_id);
9e68cccc 3418 if (request_id >= ctrl_info->max_io_slots) {
5d1f03e6 3419 pqi_invalid_response(ctrl_info, PQI_INVALID_REQ_ID);
9e68cccc
KB		 3420 dev_err(&ctrl_info->pci_dev->dev,
3421 "request ID in response (%u) out of range (0-%u): producer index: %u consumer index: %u\n",
3422 request_id, ctrl_info->max_io_slots - 1, oq_pi, oq_ci);
3423 return -1;
3424 }
6c223761
KB		 3425
3426 io_request = &ctrl_info->io_request_pool[request_id];
9e68cccc 3427 if (atomic_read(&io_request->refcount) == 0) {
5d1f03e6 3428 pqi_invalid_response(ctrl_info, PQI_UNMATCHED_REQ_ID);
9e68cccc
KB		 3429 dev_err(&ctrl_info->pci_dev->dev,
3430 "request ID in response (%u) does not match an outstanding I/O request: producer index: %u consumer index: %u\n",
3431 request_id, oq_pi, oq_ci);
3432 return -1;
3433 }
6c223761
KB		 3434
3435 switch (response->header.iu_type) {
3436 case PQI_RESPONSE_IU_RAID_PATH_IO_SUCCESS:
3437 case PQI_RESPONSE_IU_AIO_PATH_IO_SUCCESS:
2ba55c98
KB		 3438 if (io_request->scmd)
3439 io_request->scmd->result = 0;
df561f66 3440 fallthrough;
6c223761
KB		 3441 case PQI_RESPONSE_IU_GENERAL_MANAGEMENT:
3442 break;
b212c251
KB		 3443 case PQI_RESPONSE_IU_VENDOR_GENERAL:
3444 io_request->status =
3445 get_unaligned_le16(
583891c9 3446 &((struct pqi_vendor_general_response *)response)->status);
b212c251 3447 break;
6c223761 3448 case PQI_RESPONSE_IU_TASK_MANAGEMENT:
18ff5f08
KB		 3449 io_request->status = pqi_interpret_task_management_response(ctrl_info,
3450 (void *)response);
6c223761
KB		 3451 break;
3452 case PQI_RESPONSE_IU_AIO_PATH_DISABLED:
3453 pqi_aio_path_disabled(io_request);
3454 io_request->status = -EAGAIN;
3455 break;
3456 case PQI_RESPONSE_IU_RAID_PATH_IO_ERROR:
3457 case PQI_RESPONSE_IU_AIO_PATH_IO_ERROR:
3458 io_request->error_info = ctrl_info->error_buffer +
3459 (get_unaligned_le16(&response->error_index) *
3460 PQI_ERROR_BUFFER_ELEMENT_LENGTH);
9e68cccc 3461 pqi_process_io_error(response->header.iu_type, io_request);
6c223761
KB		 3462 break;
3463 default:
5d1f03e6 3464 pqi_invalid_response(ctrl_info, PQI_UNEXPECTED_IU_TYPE);
6c223761 3465 dev_err(&ctrl_info->pci_dev->dev,
9e68cccc
KB		 3466 "unexpected IU type: 0x%x: producer index: %u consumer index: %u\n",
3467 response->header.iu_type, oq_pi, oq_ci);
3468 return -1;
6c223761
KB		 3469 }
3470
9e68cccc 3471 io_request->io_complete_callback(io_request, io_request->context);
6c223761
KB		 3472
3473 /*
3474 * Note that the I/O request structure CANNOT BE TOUCHED after
3475 * returning from the I/O completion callback!
3476 */
6c223761
KB		 3477 oq_ci = (oq_ci + 1) % ctrl_info->num_elements_per_oq;
3478 }
3479
3480 if (num_responses) {
3481 queue_group->oq_ci_copy = oq_ci;
3482 writel(oq_ci, queue_group->oq_ci);
3483 }
3484
3485 return num_responses;
3486}
3487
3488static inline unsigned int pqi_num_elements_free(unsigned int pi,
df7a1fcf 3489 unsigned int ci, unsigned int elements_in_queue)
6c223761
KB		 3490{
3491 unsigned int num_elements_used;
3492
3493 if (pi >= ci)
3494 num_elements_used = pi - ci;
3495 else
3496 num_elements_used = elements_in_queue - ci + pi;
3497
3498 return elements_in_queue - num_elements_used - 1;
3499}
3500
98f87667 3501static void pqi_send_event_ack(struct pqi_ctrl_info *ctrl_info,
6c223761
KB		 3502 struct pqi_event_acknowledge_request *iu, size_t iu_length)
3503{
3504 pqi_index_t iq_pi;
3505 pqi_index_t iq_ci;
3506 unsigned long flags;
3507 void *next_element;
6c223761
KB		 3508 struct pqi_queue_group *queue_group;
3509
3510 queue_group = &ctrl_info->queue_groups[PQI_DEFAULT_QUEUE_GROUP];
3511 put_unaligned_le16(queue_group->oq_id, &iu->header.response_queue_id);
3512
6c223761
KB		 3513 while (1) {
3514 spin_lock_irqsave(&queue_group->submit_lock[RAID_PATH], flags);
3515
3516 iq_pi = queue_group->iq_pi_copy[RAID_PATH];
dac12fbc 3517 iq_ci = readl(queue_group->iq_ci[RAID_PATH]);
6c223761
KB		 3518
3519 if (pqi_num_elements_free(iq_pi, iq_ci,
3520 ctrl_info->num_elements_per_iq))
3521 break;
3522
3523 spin_unlock_irqrestore(
3524 &queue_group->submit_lock[RAID_PATH], flags);
3525
98f87667 3526 if (pqi_ctrl_offline(ctrl_info))
6c223761 3527 return;
6c223761
KB		 3528 }
3529
3530 next_element = queue_group->iq_element_array[RAID_PATH] +
3531 (iq_pi * PQI_OPERATIONAL_IQ_ELEMENT_LENGTH);
3532
3533 memcpy(next_element, iu, iu_length);
3534
3535 iq_pi = (iq_pi + 1) % ctrl_info->num_elements_per_iq;
6c223761
KB		 3536 queue_group->iq_pi_copy[RAID_PATH] = iq_pi;
3537
3538 /*
3539 * This write notifies the controller that an IU is available to be
3540 * processed.
3541 */
3542 writel(iq_pi, queue_group->iq_pi[RAID_PATH]);
3543
3544 spin_unlock_irqrestore(&queue_group->submit_lock[RAID_PATH], flags);
6c223761
KB		 3545}
3546
3547static void pqi_acknowledge_event(struct pqi_ctrl_info *ctrl_info,
3548 struct pqi_event *event)
3549{
3550 struct pqi_event_acknowledge_request request;
3551
3552 memset(&request, 0, sizeof(request));
3553
3554 request.header.iu_type = PQI_REQUEST_IU_ACKNOWLEDGE_VENDOR_EVENT;
3555 put_unaligned_le16(sizeof(request) - PQI_REQUEST_HEADER_LENGTH,
3556 &request.header.iu_length);
3557 request.event_type = event->event_type;
06b41e0d
KB		 3558 put_unaligned_le16(event->event_id, &request.event_id);
3559 put_unaligned_le32(event->additional_event_id, &request.additional_event_id);
6c223761 3560
98f87667 3561 pqi_send_event_ack(ctrl_info, &request, sizeof(request));
6c223761
KB		 3562}
3563
4fd22c13
MR		 3564#define PQI_SOFT_RESET_STATUS_TIMEOUT_SECS 30
3565#define PQI_SOFT_RESET_STATUS_POLL_INTERVAL_SECS 1
3566
3567static enum pqi_soft_reset_status pqi_poll_for_soft_reset_status(
3568 struct pqi_ctrl_info *ctrl_info)
6c223761 3569{
4fd22c13 3570 u8 status;
583891c9 3571 unsigned long timeout;
6c223761 3572
42dc0426 3573 timeout = (PQI_SOFT_RESET_STATUS_TIMEOUT_SECS * HZ) + jiffies;
6c223761 3574
4fd22c13
MR		 3575 while (1) {
3576 status = pqi_read_soft_reset_status(ctrl_info);
3577 if (status & PQI_SOFT_RESET_INITIATE)
3578 return RESET_INITIATE_DRIVER;
3579
3580 if (status & PQI_SOFT_RESET_ABORT)
3581 return RESET_ABORT;
3582
4ccc354b
KB		 3583 if (!sis_is_firmware_running(ctrl_info))
3584 return RESET_NORESPONSE;
3585
4fd22c13 3586 if (time_after(jiffies, timeout)) {
4ccc354b 3587 dev_warn(&ctrl_info->pci_dev->dev,
4fd22c13
MR		 3588 "timed out waiting for soft reset status\n");
3589 return RESET_TIMEDOUT;
3590 }
3591
4fd22c13
MR		 3592 ssleep(PQI_SOFT_RESET_STATUS_POLL_INTERVAL_SECS);
3593 }
3594}
3595
4ccc354b 3596static void pqi_process_soft_reset(struct pqi_ctrl_info *ctrl_info)
4fd22c13
MR		 3597{
3598 int rc;
2790cd4d 3599 unsigned int delay_secs;
4ccc354b
KB		 3600 enum pqi_soft_reset_status reset_status;
3601
3602 if (ctrl_info->soft_reset_handshake_supported)
3603 reset_status = pqi_poll_for_soft_reset_status(ctrl_info);
3604 else
3605 reset_status = RESET_INITIATE_FIRMWARE;
4fd22c13 3606
2790cd4d 3607 delay_secs = PQI_POST_RESET_DELAY_SECS;
4fd22c13
MR		 3608
3609 switch (reset_status) {
4fd22c13 3610 case RESET_TIMEDOUT:
2790cd4d 3611 delay_secs = PQI_POST_OFA_RESET_DELAY_UPON_TIMEOUT_SECS;
4ccc354b
KB		 3612 fallthrough;
3613 case RESET_INITIATE_DRIVER:
4fd22c13 3614 dev_info(&ctrl_info->pci_dev->dev,
4ccc354b 3615 "Online Firmware Activation: resetting controller\n");
4fd22c13 3616 sis_soft_reset(ctrl_info);
df561f66 3617 fallthrough;
4fd22c13 3618 case RESET_INITIATE_FIRMWARE:
4ccc354b
KB		 3619 ctrl_info->pqi_mode_enabled = false;
3620 pqi_save_ctrl_mode(ctrl_info, SIS_MODE);
2790cd4d 3621 rc = pqi_ofa_ctrl_restart(ctrl_info, delay_secs);
4fd22c13 3622 pqi_ofa_free_host_buffer(ctrl_info);
4ccc354b 3623 pqi_ctrl_ofa_done(ctrl_info);
4fd22c13 3624 dev_info(&ctrl_info->pci_dev->dev,
4ccc354b
KB		 3625 "Online Firmware Activation: %s\n",
3626 rc == 0 ? "SUCCESS" : "FAILED");
4fd22c13
MR		 3627 break;
3628 case RESET_ABORT:
4fd22c13 3629 dev_info(&ctrl_info->pci_dev->dev,
4ccc354b
KB		 3630 "Online Firmware Activation ABORTED\n");
3631 if (ctrl_info->soft_reset_handshake_supported)
3632 pqi_clear_soft_reset_status(ctrl_info);
3633 pqi_ofa_free_host_buffer(ctrl_info);
3634 pqi_ctrl_ofa_done(ctrl_info);
3635 pqi_ofa_ctrl_unquiesce(ctrl_info);
4fd22c13
MR		 3636 break;
3637 case RESET_NORESPONSE:
4ccc354b
KB		 3638 fallthrough;
3639 default:
3640 dev_err(&ctrl_info->pci_dev->dev,
3641 "unexpected Online Firmware Activation reset status: 0x%x\n",
3642 reset_status);
4fd22c13 3643 pqi_ofa_free_host_buffer(ctrl_info);
4ccc354b
KB		 3644 pqi_ctrl_ofa_done(ctrl_info);
3645 pqi_ofa_ctrl_unquiesce(ctrl_info);
5d1f03e6 3646 pqi_take_ctrl_offline(ctrl_info, PQI_OFA_RESPONSE_TIMEOUT);
4fd22c13
MR		 3647 break;
3648 }
3649}
3650
2790cd4d 3651static void pqi_ofa_memory_alloc_worker(struct work_struct *work)
4fd22c13 3652{
2790cd4d 3653 struct pqi_ctrl_info *ctrl_info;
4fd22c13 3654
2790cd4d 3655 ctrl_info = container_of(work, struct pqi_ctrl_info, ofa_memory_alloc_work);
4fd22c13 3656
2790cd4d
KB		 3657 pqi_ctrl_ofa_start(ctrl_info);
3658 pqi_ofa_setup_host_buffer(ctrl_info);
3659 pqi_ofa_host_memory_update(ctrl_info);
3660}
4fd22c13 3661
2790cd4d
KB		 3662static void pqi_ofa_quiesce_worker(struct work_struct *work)
3663{
3664 struct pqi_ctrl_info *ctrl_info;
3665 struct pqi_event *event;
4fd22c13 3666
2790cd4d
KB		 3667 ctrl_info = container_of(work, struct pqi_ctrl_info, ofa_quiesce_work);
3668
3669 event = &ctrl_info->events[pqi_event_type_to_event_index(PQI_EVENT_TYPE_OFA)];
3670
3671 pqi_ofa_ctrl_quiesce(ctrl_info);
3672 pqi_acknowledge_event(ctrl_info, event);
3673 pqi_process_soft_reset(ctrl_info);
3674}
4fd22c13 3675
2790cd4d
KB		 3676static bool pqi_ofa_process_event(struct pqi_ctrl_info *ctrl_info,
3677 struct pqi_event *event)
3678{
3679 bool ack_event;
3680
3681 ack_event = true;
3682
3683 switch (event->event_id) {
3684 case PQI_EVENT_OFA_MEMORY_ALLOCATION:
4fd22c13 3685 dev_info(&ctrl_info->pci_dev->dev,
2790cd4d
KB		 3686 "received Online Firmware Activation memory allocation request\n");
3687 schedule_work(&ctrl_info->ofa_memory_alloc_work);
3688 break;
3689 case PQI_EVENT_OFA_QUIESCE:
4fd22c13 3690 dev_info(&ctrl_info->pci_dev->dev,
2790cd4d
KB		 3691 "received Online Firmware Activation quiesce request\n");
3692 schedule_work(&ctrl_info->ofa_quiesce_work);
3693 ack_event = false;
3694 break;
3695 case PQI_EVENT_OFA_CANCELED:
4fd22c13 3696 dev_info(&ctrl_info->pci_dev->dev,
2790cd4d
KB		 3697 "received Online Firmware Activation cancel request: reason: %u\n",
3698 ctrl_info->ofa_cancel_reason);
3699 pqi_ofa_free_host_buffer(ctrl_info);
3700 pqi_ctrl_ofa_done(ctrl_info);
3701 break;
3702 default:
3703 dev_err(&ctrl_info->pci_dev->dev,
3704 "received unknown Online Firmware Activation request: event ID: %u\n",
3705 event->event_id);
3706 break;
4fd22c13
MR		 3707 }
3708
2790cd4d 3709 return ack_event;
4fd22c13
MR		 3710}
3711
6ce3cfb3
KB		 3712static void pqi_disable_raid_bypass(struct pqi_ctrl_info *ctrl_info)
3713{
3714 unsigned long flags;
3715 struct pqi_scsi_dev *device;
3716
3717 spin_lock_irqsave(&ctrl_info->scsi_device_list_lock, flags);
3718
3719 list_for_each_entry(device, &ctrl_info->scsi_device_list, scsi_device_list_entry)
3720 if (device->raid_bypass_enabled)
3721 device->raid_bypass_enabled = false;
3722
3723 spin_unlock_irqrestore(&ctrl_info->scsi_device_list_lock, flags);
3724}
3725
6c223761
KB		 3726static void pqi_event_worker(struct work_struct *work)
3727{
3728 unsigned int i;
2790cd4d 3729 bool rescan_needed;
6c223761 3730 struct pqi_ctrl_info *ctrl_info;
6a50d6ad 3731 struct pqi_event *event;
2790cd4d 3732 bool ack_event;
6c223761
KB		 3733
3734 ctrl_info = container_of(work, struct pqi_ctrl_info, event_work);
3735
7561a7e4 3736 pqi_ctrl_busy(ctrl_info);
ae0c189d 3737 pqi_wait_if_ctrl_blocked(ctrl_info);
5f310425
KB		 3738 if (pqi_ctrl_offline(ctrl_info))
3739 goto out;
3740
2790cd4d 3741 rescan_needed = false;
6a50d6ad 3742 event = ctrl_info->events;
6c223761 3743 for (i = 0; i < PQI_NUM_SUPPORTED_EVENTS; i++) {
6a50d6ad
KB		 3744 if (event->pending) {
3745 event->pending = false;
4fd22c13 3746 if (event->event_type == PQI_EVENT_TYPE_OFA) {
2790cd4d
KB		 3747 ack_event = pqi_ofa_process_event(ctrl_info, event);
3748 } else {
3749 ack_event = true;
3750 rescan_needed = true;
27655e9d
MR		 3751 if (event->event_type == PQI_EVENT_TYPE_LOGICAL_DEVICE)
3752 ctrl_info->logical_volume_rescan_needed = true;
6ce3cfb3
KB		 3753 else if (event->event_type == PQI_EVENT_TYPE_AIO_STATE_CHANGE)
3754 pqi_disable_raid_bypass(ctrl_info);
4fd22c13 3755 }
2790cd4d
KB		 3756 if (ack_event)
3757 pqi_acknowledge_event(ctrl_info, event);
6c223761 3758 }
6a50d6ad 3759 event++;
6c223761
KB		 3760 }
3761
4e7d2602
MM		 3762#define PQI_RESCAN_WORK_FOR_EVENT_DELAY (5 * HZ)
3763
2790cd4d 3764 if (rescan_needed)
4e7d2602
MM		 3765 pqi_schedule_rescan_worker_with_delay(ctrl_info,
3766 PQI_RESCAN_WORK_FOR_EVENT_DELAY);
2790cd4d 3767
5f310425 3768out:
7561a7e4 3769 pqi_ctrl_unbusy(ctrl_info);
6c223761
KB		 3770}
3771
42dc0426 3772#define PQI_HEARTBEAT_TIMER_INTERVAL (10 * HZ)
6c223761 3773
74a0f573 3774static void pqi_heartbeat_timer_handler(struct timer_list *t)
6c223761
KB		 3775{
3776 int num_interrupts;
98f87667 3777 u32 heartbeat_count;
583891c9 3778 struct pqi_ctrl_info *ctrl_info = from_timer(ctrl_info, t, heartbeat_timer);
6c223761 3779
98f87667
KB		 3780 pqi_check_ctrl_health(ctrl_info);
3781 if (pqi_ctrl_offline(ctrl_info))
061ef06a
KB		 3782 return;
3783
6c223761 3784 num_interrupts = atomic_read(&ctrl_info->num_interrupts);
98f87667 3785 heartbeat_count = pqi_read_heartbeat_counter(ctrl_info);
6c223761
KB		 3786
3787 if (num_interrupts == ctrl_info->previous_num_interrupts) {
98f87667
KB		 3788 if (heartbeat_count == ctrl_info->previous_heartbeat_count) {
3789 dev_err(&ctrl_info->pci_dev->dev,
3790 "no heartbeat detected - last heartbeat count: %u\n",
3791 heartbeat_count);
5d1f03e6 3792 pqi_take_ctrl_offline(ctrl_info, PQI_NO_HEARTBEAT);
6c223761
KB		 3793 return;
3794 }
6c223761 3795 } else {
98f87667 3796 ctrl_info->previous_num_interrupts = num_interrupts;
6c223761
KB		 3797 }
3798
98f87667 3799 ctrl_info->previous_heartbeat_count = heartbeat_count;
6c223761
KB		 3800 mod_timer(&ctrl_info->heartbeat_timer,
3801 jiffies + PQI_HEARTBEAT_TIMER_INTERVAL);
3802}
3803
3804static void pqi_start_heartbeat_timer(struct pqi_ctrl_info *ctrl_info)
3805{
98f87667
KB		 3806 if (!ctrl_info->heartbeat_counter)
3807 return;
3808
6c223761
KB		 3809 ctrl_info->previous_num_interrupts =
3810 atomic_read(&ctrl_info->num_interrupts);
98f87667
KB		 3811 ctrl_info->previous_heartbeat_count =
3812 pqi_read_heartbeat_counter(ctrl_info);
6c223761 3813
6c223761
KB		 3814 ctrl_info->heartbeat_timer.expires =
3815 jiffies + PQI_HEARTBEAT_TIMER_INTERVAL;
061ef06a 3816 add_timer(&ctrl_info->heartbeat_timer);
6c223761
KB		 3817}
3818
3819static inline void pqi_stop_heartbeat_timer(struct pqi_ctrl_info *ctrl_info)
3820{
98f87667 3821 del_timer_sync(&ctrl_info->heartbeat_timer);
6c223761
KB		 3822}
3823
2790cd4d
KB		 3824static void pqi_ofa_capture_event_payload(struct pqi_ctrl_info *ctrl_info,
3825 struct pqi_event *event, struct pqi_event_response *response)
4fd22c13 3826{
2790cd4d
KB		 3827 switch (event->event_id) {
3828 case PQI_EVENT_OFA_MEMORY_ALLOCATION:
3829 ctrl_info->ofa_bytes_requested =
3830 get_unaligned_le32(&response->data.ofa_memory_allocation.bytes_requested);
3831 break;
3832 case PQI_EVENT_OFA_CANCELED:
3833 ctrl_info->ofa_cancel_reason =
3834 get_unaligned_le16(&response->data.ofa_cancelled.reason);
3835 break;
4fd22c13
MR		 3836 }
3837}
3838
9e68cccc 3839static int pqi_process_event_intr(struct pqi_ctrl_info *ctrl_info)
6c223761 3840{
9e68cccc 3841 int num_events;
6c223761
KB		 3842 pqi_index_t oq_pi;
3843 pqi_index_t oq_ci;
3844 struct pqi_event_queue *event_queue;
3845 struct pqi_event_response *response;
6a50d6ad 3846 struct pqi_event *event;
6c223761
KB		 3847 int event_index;
3848
3849 event_queue = &ctrl_info->event_queue;
3850 num_events = 0;
6c223761
KB		 3851 oq_ci = event_queue->oq_ci_copy;
3852
3853 while (1) {
dac12fbc 3854 oq_pi = readl(event_queue->oq_pi);
9e68cccc 3855 if (oq_pi >= PQI_NUM_EVENT_QUEUE_ELEMENTS) {
5d1f03e6 3856 pqi_invalid_response(ctrl_info, PQI_EVENT_PI_OUT_OF_RANGE);
9e68cccc
KB		 3857 dev_err(&ctrl_info->pci_dev->dev,
3858 "event interrupt: producer index (%u) out of range (0-%u): consumer index: %u\n",
3859 oq_pi, PQI_NUM_EVENT_QUEUE_ELEMENTS - 1, oq_ci);
3860 return -1;
3861 }
3862
6c223761
KB		 3863 if (oq_pi == oq_ci)
3864 break;
3865
3866 num_events++;
9e68cccc 3867 response = event_queue->oq_element_array + (oq_ci * PQI_EVENT_OQ_ELEMENT_LENGTH);
6c223761 3868
583891c9 3869 event_index = pqi_event_type_to_event_index(response->event_type);
6c223761 3870
9e68cccc
KB		 3871 if (event_index >= 0 && response->request_acknowledge) {
3872 event = &ctrl_info->events[event_index];
3873 event->pending = true;
3874 event->event_type = response->event_type;
06b41e0d
KB		 3875 event->event_id = get_unaligned_le16(&response->event_id);
3876 event->additional_event_id =
3877 get_unaligned_le32(&response->additional_event_id);
9e68cccc 3878 if (event->event_type == PQI_EVENT_TYPE_OFA)
2790cd4d 3879 pqi_ofa_capture_event_payload(ctrl_info, event, response);
6c223761
KB		 3880 }
3881
3882 oq_ci = (oq_ci + 1) % PQI_NUM_EVENT_QUEUE_ELEMENTS;
3883 }
3884
3885 if (num_events) {
3886 event_queue->oq_ci_copy = oq_ci;
3887 writel(oq_ci, event_queue->oq_ci);
98f87667 3888 schedule_work(&ctrl_info->event_work);
6c223761
KB		 3889 }
3890
3891 return num_events;
3892}
3893
061ef06a
KB		 3894#define PQI_LEGACY_INTX_MASK 0x1
3895
583891c9 3896static inline void pqi_configure_legacy_intx(struct pqi_ctrl_info *ctrl_info, bool enable_intx)
061ef06a
KB		 3897{
3898 u32 intx_mask;
3899 struct pqi_device_registers __iomem *pqi_registers;
3900 volatile void __iomem *register_addr;
3901
3902 pqi_registers = ctrl_info->pqi_registers;
3903
3904 if (enable_intx)
3905 register_addr = &pqi_registers->legacy_intx_mask_clear;
3906 else
3907 register_addr = &pqi_registers->legacy_intx_mask_set;
3908
3909 intx_mask = readl(register_addr);
3910 intx_mask |= PQI_LEGACY_INTX_MASK;
3911 writel(intx_mask, register_addr);
3912}
3913
3914static void pqi_change_irq_mode(struct pqi_ctrl_info *ctrl_info,
3915 enum pqi_irq_mode new_mode)
3916{
3917 switch (ctrl_info->irq_mode) {
3918 case IRQ_MODE_MSIX:
3919 switch (new_mode) {
3920 case IRQ_MODE_MSIX:
3921 break;
3922 case IRQ_MODE_INTX:
3923 pqi_configure_legacy_intx(ctrl_info, true);
061ef06a
KB		 3924 sis_enable_intx(ctrl_info);
3925 break;
3926 case IRQ_MODE_NONE:
061ef06a
KB		 3927 break;
3928 }
3929 break;
3930 case IRQ_MODE_INTX:
3931 switch (new_mode) {
3932 case IRQ_MODE_MSIX:
3933 pqi_configure_legacy_intx(ctrl_info, false);
061ef06a
KB		 3934 sis_enable_msix(ctrl_info);
3935 break;
3936 case IRQ_MODE_INTX:
3937 break;
3938 case IRQ_MODE_NONE:
3939 pqi_configure_legacy_intx(ctrl_info, false);
061ef06a
KB		 3940 break;
3941 }
3942 break;
3943 case IRQ_MODE_NONE:
3944 switch (new_mode) {
3945 case IRQ_MODE_MSIX:
3946 sis_enable_msix(ctrl_info);
3947 break;
3948 case IRQ_MODE_INTX:
3949 pqi_configure_legacy_intx(ctrl_info, true);
3950 sis_enable_intx(ctrl_info);
3951 break;
3952 case IRQ_MODE_NONE:
3953 break;
3954 }
3955 break;
3956 }
3957
3958 ctrl_info->irq_mode = new_mode;
3959}
3960
3961#define PQI_LEGACY_INTX_PENDING 0x1
3962
3963static inline bool pqi_is_valid_irq(struct pqi_ctrl_info *ctrl_info)
3964{
3965 bool valid_irq;
3966 u32 intx_status;
3967
3968 switch (ctrl_info->irq_mode) {
3969 case IRQ_MODE_MSIX:
3970 valid_irq = true;
3971 break;
3972 case IRQ_MODE_INTX:
583891c9 3973 intx_status = readl(&ctrl_info->pqi_registers->legacy_intx_status);
061ef06a
KB		 3974 if (intx_status & PQI_LEGACY_INTX_PENDING)
3975 valid_irq = true;
3976 else
3977 valid_irq = false;
3978 break;
3979 case IRQ_MODE_NONE:
3980 default:
3981 valid_irq = false;
3982 break;
3983 }
3984
3985 return valid_irq;
3986}
3987
6c223761
KB		 3988static irqreturn_t pqi_irq_handler(int irq, void *data)
3989{
3990 struct pqi_ctrl_info *ctrl_info;
3991 struct pqi_queue_group *queue_group;
9e68cccc
KB		 3992 int num_io_responses_handled;
3993 int num_events_handled;
6c223761
KB		 3994
3995 queue_group = data;
3996 ctrl_info = queue_group->ctrl_info;
3997
061ef06a 3998 if (!pqi_is_valid_irq(ctrl_info))
6c223761
KB		 3999 return IRQ_NONE;
4000
9e68cccc
KB		 4001 num_io_responses_handled = pqi_process_io_intr(ctrl_info, queue_group);
4002 if (num_io_responses_handled < 0)
4003 goto out;
6c223761 4004
9e68cccc
KB		 4005 if (irq == ctrl_info->event_irq) {
4006 num_events_handled = pqi_process_event_intr(ctrl_info);
4007 if (num_events_handled < 0)
4008 goto out;
4009 } else {
4010 num_events_handled = 0;
4011 }
6c223761 4012
9e68cccc 4013 if (num_io_responses_handled + num_events_handled > 0)
6c223761
KB		 4014 atomic_inc(&ctrl_info->num_interrupts);
4015
4016 pqi_start_io(ctrl_info, queue_group, RAID_PATH, NULL);
4017 pqi_start_io(ctrl_info, queue_group, AIO_PATH, NULL);
4018
9e68cccc 4019out:
6c223761
KB		 4020 return IRQ_HANDLED;
4021}
4022
4023static int pqi_request_irqs(struct pqi_ctrl_info *ctrl_info)
4024{
d91d7820 4025 struct pci_dev *pci_dev = ctrl_info->pci_dev;
6c223761
KB		 4026 int i;
4027 int rc;
4028
d91d7820 4029 ctrl_info->event_irq = pci_irq_vector(pci_dev, 0);
6c223761
KB		 4030
4031 for (i = 0; i < ctrl_info->num_msix_vectors_enabled; i++) {
d91d7820 4032 rc = request_irq(pci_irq_vector(pci_dev, i), pqi_irq_handler, 0,
52198226 4033 DRIVER_NAME_SHORT, &ctrl_info->queue_groups[i]);
6c223761 4034 if (rc) {
d91d7820 4035 dev_err(&pci_dev->dev,
6c223761 4036 "irq %u init failed with error %d\n",
d91d7820 4037 pci_irq_vector(pci_dev, i), rc);
6c223761
KB		 4038 return rc;
4039 }
4040 ctrl_info->num_msix_vectors_initialized++;
4041 }
4042
4043 return 0;
4044}
4045
98bf061b
KB		 4046static void pqi_free_irqs(struct pqi_ctrl_info *ctrl_info)
4047{
4048 int i;
4049
4050 for (i = 0; i < ctrl_info->num_msix_vectors_initialized; i++)
4051 free_irq(pci_irq_vector(ctrl_info->pci_dev, i),
4052 &ctrl_info->queue_groups[i]);
4053
4054 ctrl_info->num_msix_vectors_initialized = 0;
4055}
4056
6c223761
KB		 4057static int pqi_enable_msix_interrupts(struct pqi_ctrl_info *ctrl_info)
4058{
98bf061b 4059 int num_vectors_enabled;
cf15c3e7
MM		 4060 unsigned int flags = PCI_IRQ_MSIX;
4061
4062 if (!pqi_disable_managed_interrupts)
4063 flags |= PCI_IRQ_AFFINITY;
6c223761 4064
98bf061b 4065 num_vectors_enabled = pci_alloc_irq_vectors(ctrl_info->pci_dev,
52198226 4066 PQI_MIN_MSIX_VECTORS, ctrl_info->num_queue_groups,
cf15c3e7 4067 flags);
98bf061b 4068 if (num_vectors_enabled < 0) {
6c223761 4069 dev_err(&ctrl_info->pci_dev->dev,
98bf061b
KB		 4070 "MSI-X init failed with error %d\n",
4071 num_vectors_enabled);
4072 return num_vectors_enabled;
6c223761
KB		 4073 }
4074
98bf061b 4075 ctrl_info->num_msix_vectors_enabled = num_vectors_enabled;
061ef06a 4076 ctrl_info->irq_mode = IRQ_MODE_MSIX;
6c223761
KB		 4077 return 0;
4078}
4079
98bf061b
KB		 4080static void pqi_disable_msix_interrupts(struct pqi_ctrl_info *ctrl_info)
4081{
4082 if (ctrl_info->num_msix_vectors_enabled) {
4083 pci_free_irq_vectors(ctrl_info->pci_dev);
4084 ctrl_info->num_msix_vectors_enabled = 0;
4085 }
4086}
4087
6c223761
KB		 4088static int pqi_alloc_operational_queues(struct pqi_ctrl_info *ctrl_info)
4089{
4090 unsigned int i;
4091 size_t alloc_length;
4092 size_t element_array_length_per_iq;
4093 size_t element_array_length_per_oq;
4094 void *element_array;
dac12fbc 4095 void __iomem *next_queue_index;
6c223761
KB		 4096 void *aligned_pointer;
4097 unsigned int num_inbound_queues;
4098 unsigned int num_outbound_queues;
4099 unsigned int num_queue_indexes;
4100 struct pqi_queue_group *queue_group;
4101
4102 element_array_length_per_iq =
4103 PQI_OPERATIONAL_IQ_ELEMENT_LENGTH *
4104 ctrl_info->num_elements_per_iq;
4105 element_array_length_per_oq =
4106 PQI_OPERATIONAL_OQ_ELEMENT_LENGTH *
4107 ctrl_info->num_elements_per_oq;
4108 num_inbound_queues = ctrl_info->num_queue_groups * 2;
4109 num_outbound_queues = ctrl_info->num_queue_groups;
4110 num_queue_indexes = (ctrl_info->num_queue_groups * 3) + 1;
4111
4112 aligned_pointer = NULL;
4113
4114 for (i = 0; i < num_inbound_queues; i++) {
4115 aligned_pointer = PTR_ALIGN(aligned_pointer,
4116 PQI_QUEUE_ELEMENT_ARRAY_ALIGNMENT);
4117 aligned_pointer += element_array_length_per_iq;
4118 }
4119
4120 for (i = 0; i < num_outbound_queues; i++) {
4121 aligned_pointer = PTR_ALIGN(aligned_pointer,
4122 PQI_QUEUE_ELEMENT_ARRAY_ALIGNMENT);
4123 aligned_pointer += element_array_length_per_oq;
4124 }
4125
4126 aligned_pointer = PTR_ALIGN(aligned_pointer,
4127 PQI_QUEUE_ELEMENT_ARRAY_ALIGNMENT);
4128 aligned_pointer += PQI_NUM_EVENT_QUEUE_ELEMENTS *
4129 PQI_EVENT_OQ_ELEMENT_LENGTH;
4130
4131 for (i = 0; i < num_queue_indexes; i++) {
4132 aligned_pointer = PTR_ALIGN(aligned_pointer,
4133 PQI_OPERATIONAL_INDEX_ALIGNMENT);
4134 aligned_pointer += sizeof(pqi_index_t);
4135 }
4136
4137 alloc_length = (size_t)aligned_pointer +
4138 PQI_QUEUE_ELEMENT_ARRAY_ALIGNMENT;
4139
e1d213bd
KB		 4140 alloc_length += PQI_EXTRA_SGL_MEMORY;
4141
6c223761 4142 ctrl_info->queue_memory_base =
750afb08
LC		 4143 dma_alloc_coherent(&ctrl_info->pci_dev->dev, alloc_length,
4144 &ctrl_info->queue_memory_base_dma_handle,
4145 GFP_KERNEL);
6c223761 4146
d87d5474 4147 if (!ctrl_info->queue_memory_base)
6c223761 4148 return -ENOMEM;
6c223761
KB		 4149
4150 ctrl_info->queue_memory_length = alloc_length;
4151
4152 element_array = PTR_ALIGN(ctrl_info->queue_memory_base,
4153 PQI_QUEUE_ELEMENT_ARRAY_ALIGNMENT);
4154
4155 for (i = 0; i < ctrl_info->num_queue_groups; i++) {
4156 queue_group = &ctrl_info->queue_groups[i];
4157 queue_group->iq_element_array[RAID_PATH] = element_array;
4158 queue_group->iq_element_array_bus_addr[RAID_PATH] =
4159 ctrl_info->queue_memory_base_dma_handle +
4160 (element_array - ctrl_info->queue_memory_base);
4161 element_array += element_array_length_per_iq;
4162 element_array = PTR_ALIGN(element_array,
4163 PQI_QUEUE_ELEMENT_ARRAY_ALIGNMENT);
4164 queue_group->iq_element_array[AIO_PATH] = element_array;
4165 queue_group->iq_element_array_bus_addr[AIO_PATH] =
4166 ctrl_info->queue_memory_base_dma_handle +
4167 (element_array - ctrl_info->queue_memory_base);
4168 element_array += element_array_length_per_iq;
4169 element_array = PTR_ALIGN(element_array,
4170 PQI_QUEUE_ELEMENT_ARRAY_ALIGNMENT);
4171 }
4172
4173 for (i = 0; i < ctrl_info->num_queue_groups; i++) {
4174 queue_group = &ctrl_info->queue_groups[i];
4175 queue_group->oq_element_array = element_array;
4176 queue_group->oq_element_array_bus_addr =
4177 ctrl_info->queue_memory_base_dma_handle +
4178 (element_array - ctrl_info->queue_memory_base);
4179 element_array += element_array_length_per_oq;
4180 element_array = PTR_ALIGN(element_array,
4181 PQI_QUEUE_ELEMENT_ARRAY_ALIGNMENT);
4182 }
4183
4184 ctrl_info->event_queue.oq_element_array = element_array;
4185 ctrl_info->event_queue.oq_element_array_bus_addr =
4186 ctrl_info->queue_memory_base_dma_handle +
4187 (element_array - ctrl_info->queue_memory_base);
4188 element_array += PQI_NUM_EVENT_QUEUE_ELEMENTS *
4189 PQI_EVENT_OQ_ELEMENT_LENGTH;
4190
dac12fbc 4191 next_queue_index = (void __iomem *)PTR_ALIGN(element_array,
6c223761
KB		 4192 PQI_OPERATIONAL_INDEX_ALIGNMENT);
4193
4194 for (i = 0; i < ctrl_info->num_queue_groups; i++) {
4195 queue_group = &ctrl_info->queue_groups[i];
4196 queue_group->iq_ci[RAID_PATH] = next_queue_index;
4197 queue_group->iq_ci_bus_addr[RAID_PATH] =
4198 ctrl_info->queue_memory_base_dma_handle +
dac12fbc
KB		 4199 (next_queue_index -
4200 (void __iomem *)ctrl_info->queue_memory_base);
6c223761
KB		 4201 next_queue_index += sizeof(pqi_index_t);
4202 next_queue_index = PTR_ALIGN(next_queue_index,
4203 PQI_OPERATIONAL_INDEX_ALIGNMENT);
4204 queue_group->iq_ci[AIO_PATH] = next_queue_index;
4205 queue_group->iq_ci_bus_addr[AIO_PATH] =
4206 ctrl_info->queue_memory_base_dma_handle +
dac12fbc
KB		 4207 (next_queue_index -
4208 (void __iomem *)ctrl_info->queue_memory_base);
6c223761
KB		 4209 next_queue_index += sizeof(pqi_index_t);
4210 next_queue_index = PTR_ALIGN(next_queue_index,
4211 PQI_OPERATIONAL_INDEX_ALIGNMENT);
4212 queue_group->oq_pi = next_queue_index;
4213 queue_group->oq_pi_bus_addr =
4214 ctrl_info->queue_memory_base_dma_handle +
dac12fbc
KB		 4215 (next_queue_index -
4216 (void __iomem *)ctrl_info->queue_memory_base);
6c223761
KB		 4217 next_queue_index += sizeof(pqi_index_t);
4218 next_queue_index = PTR_ALIGN(next_queue_index,
4219 PQI_OPERATIONAL_INDEX_ALIGNMENT);
4220 }
4221
4222 ctrl_info->event_queue.oq_pi = next_queue_index;
4223 ctrl_info->event_queue.oq_pi_bus_addr =
4224 ctrl_info->queue_memory_base_dma_handle +
dac12fbc
KB		 4225 (next_queue_index -
4226 (void __iomem *)ctrl_info->queue_memory_base);
6c223761
KB		 4227
4228 return 0;
4229}
4230
4231static void pqi_init_operational_queues(struct pqi_ctrl_info *ctrl_info)
4232{
4233 unsigned int i;
4234 u16 next_iq_id = PQI_MIN_OPERATIONAL_QUEUE_ID;
4235 u16 next_oq_id = PQI_MIN_OPERATIONAL_QUEUE_ID;
4236
4237 /*
4238 * Initialize the backpointers to the controller structure in
4239 * each operational queue group structure.
4240 */
4241 for (i = 0; i < ctrl_info->num_queue_groups; i++)
4242 ctrl_info->queue_groups[i].ctrl_info = ctrl_info;
4243
4244 /*
4245 * Assign IDs to all operational queues. Note that the IDs
4246 * assigned to operational IQs are independent of the IDs
4247 * assigned to operational OQs.
4248 */
4249 ctrl_info->event_queue.oq_id = next_oq_id++;
4250 for (i = 0; i < ctrl_info->num_queue_groups; i++) {
4251 ctrl_info->queue_groups[i].iq_id[RAID_PATH] = next_iq_id++;
4252 ctrl_info->queue_groups[i].iq_id[AIO_PATH] = next_iq_id++;
4253 ctrl_info->queue_groups[i].oq_id = next_oq_id++;
4254 }
4255
4256 /*
4257 * Assign MSI-X table entry indexes to all queues. Note that the
4258 * interrupt for the event queue is shared with the first queue group.
4259 */
4260 ctrl_info->event_queue.int_msg_num = 0;
4261 for (i = 0; i < ctrl_info->num_queue_groups; i++)
4262 ctrl_info->queue_groups[i].int_msg_num = i;
4263
4264 for (i = 0; i < ctrl_info->num_queue_groups; i++) {
4265 spin_lock_init(&ctrl_info->queue_groups[i].submit_lock[0]);
4266 spin_lock_init(&ctrl_info->queue_groups[i].submit_lock[1]);
4267 INIT_LIST_HEAD(&ctrl_info->queue_groups[i].request_list[0]);
4268 INIT_LIST_HEAD(&ctrl_info->queue_groups[i].request_list[1]);
4269 }
4270}
4271
4272static int pqi_alloc_admin_queues(struct pqi_ctrl_info *ctrl_info)
4273{
4274 size_t alloc_length;
4275 struct pqi_admin_queues_aligned *admin_queues_aligned;
4276 struct pqi_admin_queues *admin_queues;
4277
4278 alloc_length = sizeof(struct pqi_admin_queues_aligned) +
4279 PQI_QUEUE_ELEMENT_ARRAY_ALIGNMENT;
4280
4281 ctrl_info->admin_queue_memory_base =
750afb08
LC		 4282 dma_alloc_coherent(&ctrl_info->pci_dev->dev, alloc_length,
4283 &ctrl_info->admin_queue_memory_base_dma_handle,
4284 GFP_KERNEL);
6c223761
KB		 4285
4286 if (!ctrl_info->admin_queue_memory_base)
4287 return -ENOMEM;
4288
4289 ctrl_info->admin_queue_memory_length = alloc_length;
4290
4291 admin_queues = &ctrl_info->admin_queues;
4292 admin_queues_aligned = PTR_ALIGN(ctrl_info->admin_queue_memory_base,
4293 PQI_QUEUE_ELEMENT_ARRAY_ALIGNMENT);
4294 admin_queues->iq_element_array =
4295 &admin_queues_aligned->iq_element_array;
4296 admin_queues->oq_element_array =
4297 &admin_queues_aligned->oq_element_array;
583891c9
KB		 4298 admin_queues->iq_ci =
4299 (pqi_index_t __iomem *)&admin_queues_aligned->iq_ci;
dac12fbc
KB		 4300 admin_queues->oq_pi =
4301 (pqi_index_t __iomem *)&admin_queues_aligned->oq_pi;
6c223761
KB		 4302
4303 admin_queues->iq_element_array_bus_addr =
4304 ctrl_info->admin_queue_memory_base_dma_handle +
4305 (admin_queues->iq_element_array -
4306 ctrl_info->admin_queue_memory_base);
4307 admin_queues->oq_element_array_bus_addr =
4308 ctrl_info->admin_queue_memory_base_dma_handle +
4309 (admin_queues->oq_element_array -
4310 ctrl_info->admin_queue_memory_base);
4311 admin_queues->iq_ci_bus_addr =
4312 ctrl_info->admin_queue_memory_base_dma_handle +
583891c9
KB		 4313 ((void __iomem *)admin_queues->iq_ci -
4314 (void __iomem *)ctrl_info->admin_queue_memory_base);
6c223761
KB		 4315 admin_queues->oq_pi_bus_addr =
4316 ctrl_info->admin_queue_memory_base_dma_handle +
dac12fbc
KB		 4317 ((void __iomem *)admin_queues->oq_pi -
4318 (void __iomem *)ctrl_info->admin_queue_memory_base);
6c223761
KB		 4319
4320 return 0;
4321}
4322
42dc0426 4323#define PQI_ADMIN_QUEUE_CREATE_TIMEOUT_JIFFIES HZ
6c223761
KB		 4324#define PQI_ADMIN_QUEUE_CREATE_POLL_INTERVAL_MSECS 1
4325
4326static int pqi_create_admin_queues(struct pqi_ctrl_info *ctrl_info)
4327{
4328 struct pqi_device_registers __iomem *pqi_registers;
4329 struct pqi_admin_queues *admin_queues;
4330 unsigned long timeout;
4331 u8 status;
4332 u32 reg;
4333
4334 pqi_registers = ctrl_info->pqi_registers;
4335 admin_queues = &ctrl_info->admin_queues;
4336
4337 writeq((u64)admin_queues->iq_element_array_bus_addr,
4338 &pqi_registers->admin_iq_element_array_addr);
4339 writeq((u64)admin_queues->oq_element_array_bus_addr,
4340 &pqi_registers->admin_oq_element_array_addr);
4341 writeq((u64)admin_queues->iq_ci_bus_addr,
4342 &pqi_registers->admin_iq_ci_addr);
4343 writeq((u64)admin_queues->oq_pi_bus_addr,
4344 &pqi_registers->admin_oq_pi_addr);
4345
4346 reg = PQI_ADMIN_IQ_NUM_ELEMENTS |
e655d469 4347 (PQI_ADMIN_OQ_NUM_ELEMENTS << 8) |
6c223761
KB		 4348 (admin_queues->int_msg_num << 16);
4349 writel(reg, &pqi_registers->admin_iq_num_elements);
583891c9 4350
6c223761
KB		 4351 writel(PQI_CREATE_ADMIN_QUEUE_PAIR,
4352 &pqi_registers->function_and_status_code);
4353
4354 timeout = PQI_ADMIN_QUEUE_CREATE_TIMEOUT_JIFFIES + jiffies;
4355 while (1) {
987d3560 4356 msleep(PQI_ADMIN_QUEUE_CREATE_POLL_INTERVAL_MSECS);
6c223761
KB		 4357 status = readb(&pqi_registers->function_and_status_code);
4358 if (status == PQI_STATUS_IDLE)
4359 break;
4360 if (time_after(jiffies, timeout))
4361 return -ETIMEDOUT;
6c223761
KB		 4362 }
4363
4364 /*
4365 * The offset registers are not initialized to the correct
4366 * offsets until *after* the create admin queue pair command
4367 * completes successfully.
4368 */
4369 admin_queues->iq_pi = ctrl_info->iomem_base +
4370 PQI_DEVICE_REGISTERS_OFFSET +
4371 readq(&pqi_registers->admin_iq_pi_offset);
4372 admin_queues->oq_ci = ctrl_info->iomem_base +
4373 PQI_DEVICE_REGISTERS_OFFSET +
4374 readq(&pqi_registers->admin_oq_ci_offset);
4375
4376 return 0;
4377}
4378
4379static void pqi_submit_admin_request(struct pqi_ctrl_info *ctrl_info,
4380 struct pqi_general_admin_request *request)
4381{
4382 struct pqi_admin_queues *admin_queues;
4383 void *next_element;
4384 pqi_index_t iq_pi;
4385
4386 admin_queues = &ctrl_info->admin_queues;
4387 iq_pi = admin_queues->iq_pi_copy;
4388
4389 next_element = admin_queues->iq_element_array +
4390 (iq_pi * PQI_ADMIN_IQ_ELEMENT_LENGTH);
4391
4392 memcpy(next_element, request, sizeof(*request));
4393
4394 iq_pi = (iq_pi + 1) % PQI_ADMIN_IQ_NUM_ELEMENTS;
4395 admin_queues->iq_pi_copy = iq_pi;
4396
4397 /*
4398 * This write notifies the controller that an IU is available to be
4399 * processed.
4400 */
4401 writel(iq_pi, admin_queues->iq_pi);
4402}
4403
13bede67
KB		 4404#define PQI_ADMIN_REQUEST_TIMEOUT_SECS 60
4405
6c223761
KB		 4406static int pqi_poll_for_admin_response(struct pqi_ctrl_info *ctrl_info,
4407 struct pqi_general_admin_response *response)
4408{
4409 struct pqi_admin_queues *admin_queues;
4410 pqi_index_t oq_pi;
4411 pqi_index_t oq_ci;
4412 unsigned long timeout;
4413
4414 admin_queues = &ctrl_info->admin_queues;
4415 oq_ci = admin_queues->oq_ci_copy;
4416
42dc0426 4417 timeout = (PQI_ADMIN_REQUEST_TIMEOUT_SECS * HZ) + jiffies;
6c223761
KB		 4418
4419 while (1) {
dac12fbc 4420 oq_pi = readl(admin_queues->oq_pi);
6c223761
KB		 4421 if (oq_pi != oq_ci)
4422 break;
4423 if (time_after(jiffies, timeout)) {
4424 dev_err(&ctrl_info->pci_dev->dev,
4425 "timed out waiting for admin response\n");
4426 return -ETIMEDOUT;
4427 }
13bede67
KB		 4428 if (!sis_is_firmware_running(ctrl_info))
4429 return -ENXIO;
6c223761
KB		 4430 usleep_range(1000, 2000);
4431 }
4432
4433 memcpy(response, admin_queues->oq_element_array +
4434 (oq_ci * PQI_ADMIN_OQ_ELEMENT_LENGTH), sizeof(*response));
4435
4436 oq_ci = (oq_ci + 1) % PQI_ADMIN_OQ_NUM_ELEMENTS;
4437 admin_queues->oq_ci_copy = oq_ci;
4438 writel(oq_ci, admin_queues->oq_ci);
4439
4440 return 0;
4441}
4442
4443static void pqi_start_io(struct pqi_ctrl_info *ctrl_info,
4444 struct pqi_queue_group *queue_group, enum pqi_io_path path,
4445 struct pqi_io_request *io_request)
4446{
4447 struct pqi_io_request *next;
4448 void *next_element;
4449 pqi_index_t iq_pi;
4450 pqi_index_t iq_ci;
4451 size_t iu_length;
4452 unsigned long flags;
4453 unsigned int num_elements_needed;
4454 unsigned int num_elements_to_end_of_queue;
4455 size_t copy_count;
4456 struct pqi_iu_header *request;
4457
4458 spin_lock_irqsave(&queue_group->submit_lock[path], flags);
4459
376fb880
KB		 4460 if (io_request) {
4461 io_request->queue_group = queue_group;
6c223761
KB		 4462 list_add_tail(&io_request->request_list_entry,
4463 &queue_group->request_list[path]);
376fb880 4464 }
6c223761
KB		 4465
4466 iq_pi = queue_group->iq_pi_copy[path];
4467
4468 list_for_each_entry_safe(io_request, next,
4469 &queue_group->request_list[path], request_list_entry) {
4470
4471 request = io_request->iu;
4472
4473 iu_length = get_unaligned_le16(&request->iu_length) +
4474 PQI_REQUEST_HEADER_LENGTH;
4475 num_elements_needed =
4476 DIV_ROUND_UP(iu_length,
4477 PQI_OPERATIONAL_IQ_ELEMENT_LENGTH);
4478
dac12fbc 4479 iq_ci = readl(queue_group->iq_ci[path]);
6c223761
KB		 4480
4481 if (num_elements_needed > pqi_num_elements_free(iq_pi, iq_ci,
4482 ctrl_info->num_elements_per_iq))
4483 break;
4484
4485 put_unaligned_le16(queue_group->oq_id,
4486 &request->response_queue_id);
4487
4488 next_element = queue_group->iq_element_array[path] +
4489 (iq_pi * PQI_OPERATIONAL_IQ_ELEMENT_LENGTH);
4490
4491 num_elements_to_end_of_queue =
4492 ctrl_info->num_elements_per_iq - iq_pi;
4493
4494 if (num_elements_needed <= num_elements_to_end_of_queue) {
4495 memcpy(next_element, request, iu_length);
4496 } else {
4497 copy_count = num_elements_to_end_of_queue *
4498 PQI_OPERATIONAL_IQ_ELEMENT_LENGTH;
4499 memcpy(next_element, request, copy_count);
4500 memcpy(queue_group->iq_element_array[path],
4501 (u8 *)request + copy_count,
4502 iu_length - copy_count);
4503 }
4504
4505 iq_pi = (iq_pi + num_elements_needed) %
4506 ctrl_info->num_elements_per_iq;
4507
4508 list_del(&io_request->request_list_entry);
4509 }
4510
4511 if (iq_pi != queue_group->iq_pi_copy[path]) {
4512 queue_group->iq_pi_copy[path] = iq_pi;
4513 /*
4514 * This write notifies the controller that one or more IUs are
4515 * available to be processed.
4516 */
4517 writel(iq_pi, queue_group->iq_pi[path]);
4518 }
4519
4520 spin_unlock_irqrestore(&queue_group->submit_lock[path], flags);
4521}
4522
1f37e992
KB		 4523#define PQI_WAIT_FOR_COMPLETION_IO_TIMEOUT_SECS 10
4524
4525static int pqi_wait_for_completion_io(struct pqi_ctrl_info *ctrl_info,
4526 struct completion *wait)
4527{
4528 int rc;
1f37e992
KB		 4529
4530 while (1) {
4531 if (wait_for_completion_io_timeout(wait,
42dc0426 4532 PQI_WAIT_FOR_COMPLETION_IO_TIMEOUT_SECS * HZ)) {
1f37e992
KB		 4533 rc = 0;
4534 break;
4535 }
4536
4537 pqi_check_ctrl_health(ctrl_info);
4538 if (pqi_ctrl_offline(ctrl_info)) {
4539 rc = -ENXIO;
4540 break;
4541 }
1f37e992
KB		 4542 }
4543
4544 return rc;
4545}
4546
6c223761
KB		 4547static void pqi_raid_synchronous_complete(struct pqi_io_request *io_request,
4548 void *context)
4549{
4550 struct completion *waiting = context;
4551
4552 complete(waiting);
4553}
4554
694c5d5b
KB		 4555static int pqi_process_raid_io_error_synchronous(
4556 struct pqi_raid_error_info *error_info)
26b390ab
KB		 4557{
4558 int rc = -EIO;
4559
4560 switch (error_info->data_out_result) {
4561 case PQI_DATA_IN_OUT_GOOD:
4562 if (error_info->status == SAM_STAT_GOOD)
4563 rc = 0;
4564 break;
4565 case PQI_DATA_IN_OUT_UNDERFLOW:
4566 if (error_info->status == SAM_STAT_GOOD ||
4567 error_info->status == SAM_STAT_CHECK_CONDITION)
4568 rc = 0;
4569 break;
4570 case PQI_DATA_IN_OUT_ABORTED:
4571 rc = PQI_CMD_STATUS_ABORTED;
4572 break;
4573 }
4574
4575 return rc;
4576}
4577
ae0c189d
KB		 4578static inline bool pqi_is_blockable_request(struct pqi_iu_header *request)
4579{
4580 return (request->driver_flags & PQI_DRIVER_NONBLOCKABLE_REQUEST) == 0;
4581}
4582
6c223761
KB		 4583static int pqi_submit_raid_request_synchronous(struct pqi_ctrl_info *ctrl_info,
4584 struct pqi_iu_header *request, unsigned int flags,
ae0c189d 4585 struct pqi_raid_error_info *error_info)
6c223761 4586{
957c5ab1 4587 int rc = 0;
6c223761 4588 struct pqi_io_request *io_request;
6c223761 4589 size_t iu_length;
957c5ab1 4590 DECLARE_COMPLETION_ONSTACK(wait);
6c223761 4591
6c223761
KB		 4592 if (flags & PQI_SYNC_FLAGS_INTERRUPTABLE) {
4593 if (down_interruptible(&ctrl_info->sync_request_sem))
4594 return -ERESTARTSYS;
4595 } else {
ae0c189d 4596 down(&ctrl_info->sync_request_sem);
6c223761
KB		 4597 }
4598
7561a7e4 4599 pqi_ctrl_busy(ctrl_info);
ae0c189d
KB		 4600 /*
4601 * Wait for other admin queue updates such as;
4602 * config table changes, OFA memory updates, ...
4603 */
4604 if (pqi_is_blockable_request(request))
4605 pqi_wait_if_ctrl_blocked(ctrl_info);
7561a7e4 4606
376fb880
KB		 4607 if (pqi_ctrl_offline(ctrl_info)) {
4608 rc = -ENXIO;
4609 goto out;
4610 }
4611
b27ac2fa 4612 io_request = pqi_alloc_io_request(ctrl_info, NULL);
6c223761
KB		 4613
4614 put_unaligned_le16(io_request->index,
4615 &(((struct pqi_raid_path_request *)request)->request_id));
4616
4617 if (request->iu_type == PQI_REQUEST_IU_RAID_PATH_IO)
4618 ((struct pqi_raid_path_request *)request)->error_index =
4619 ((struct pqi_raid_path_request *)request)->request_id;
4620
4621 iu_length = get_unaligned_le16(&request->iu_length) +
4622 PQI_REQUEST_HEADER_LENGTH;
4623 memcpy(io_request->iu, request, iu_length);
4624
957c5ab1
KB		 4625 io_request->io_complete_callback = pqi_raid_synchronous_complete;
4626 io_request->context = &wait;
4627
583891c9 4628 pqi_start_io(ctrl_info, &ctrl_info->queue_groups[PQI_DEFAULT_QUEUE_GROUP], RAID_PATH,
957c5ab1
KB		 4629 io_request);
4630
ae0c189d 4631 pqi_wait_for_completion_io(ctrl_info, &wait);
6c223761
KB		 4632
4633 if (error_info) {
4634 if (io_request->error_info)
583891c9 4635 memcpy(error_info, io_request->error_info, sizeof(*error_info));
6c223761
KB		 4636 else
4637 memset(error_info, 0, sizeof(*error_info));
4638 } else if (rc == 0 && io_request->error_info) {
583891c9 4639 rc = pqi_process_raid_io_error_synchronous(io_request->error_info);
6c223761
KB		 4640 }
4641
4642 pqi_free_io_request(io_request);
4643
7561a7e4 4644out:
ae0c189d 4645 pqi_ctrl_unbusy(ctrl_info);
6c223761
KB		 4646 up(&ctrl_info->sync_request_sem);
4647
4648 return rc;
4649}
4650
4651static int pqi_validate_admin_response(
4652 struct pqi_general_admin_response *response, u8 expected_function_code)
4653{
4654 if (response->header.iu_type != PQI_RESPONSE_IU_GENERAL_ADMIN)
4655 return -EINVAL;
4656
4657 if (get_unaligned_le16(&response->header.iu_length) !=
4658 PQI_GENERAL_ADMIN_IU_LENGTH)
4659 return -EINVAL;
4660
4661 if (response->function_code != expected_function_code)
4662 return -EINVAL;
4663
4664 if (response->status != PQI_GENERAL_ADMIN_STATUS_SUCCESS)
4665 return -EINVAL;
4666
4667 return 0;
4668}
4669
4670static int pqi_submit_admin_request_synchronous(
4671 struct pqi_ctrl_info *ctrl_info,
4672 struct pqi_general_admin_request *request,
4673 struct pqi_general_admin_response *response)
4674{
4675 int rc;
4676
4677 pqi_submit_admin_request(ctrl_info, request);
4678
4679 rc = pqi_poll_for_admin_response(ctrl_info, response);
4680
4681 if (rc == 0)
ae0c189d 4682 rc = pqi_validate_admin_response(response, request->function_code);
6c223761
KB		 4683
4684 return rc;
4685}
4686
4687static int pqi_report_device_capability(struct pqi_ctrl_info *ctrl_info)
4688{
4689 int rc;
4690 struct pqi_general_admin_request request;
4691 struct pqi_general_admin_response response;
4692 struct pqi_device_capability *capability;
4693 struct pqi_iu_layer_descriptor *sop_iu_layer_descriptor;
4694
4695 capability = kmalloc(sizeof(*capability), GFP_KERNEL);
4696 if (!capability)
4697 return -ENOMEM;
4698
4699 memset(&request, 0, sizeof(request));
4700
4701 request.header.iu_type = PQI_REQUEST_IU_GENERAL_ADMIN;
4702 put_unaligned_le16(PQI_GENERAL_ADMIN_IU_LENGTH,
4703 &request.header.iu_length);
4704 request.function_code =
4705 PQI_GENERAL_ADMIN_FUNCTION_REPORT_DEVICE_CAPABILITY;
4706 put_unaligned_le32(sizeof(*capability),
4707 &request.data.report_device_capability.buffer_length);
4708
4709 rc = pqi_map_single(ctrl_info->pci_dev,
4710 &request.data.report_device_capability.sg_descriptor,
4711 capability, sizeof(*capability),
6917a9cc 4712 DMA_FROM_DEVICE);
6c223761
KB		 4713 if (rc)
4714 goto out;
4715
583891c9 4716 rc = pqi_submit_admin_request_synchronous(ctrl_info, &request, &response);
6c223761
KB		 4717
4718 pqi_pci_unmap(ctrl_info->pci_dev,
4719 &request.data.report_device_capability.sg_descriptor, 1,
6917a9cc 4720 DMA_FROM_DEVICE);
6c223761
KB		 4721
4722 if (rc)
4723 goto out;
4724
4725 if (response.status != PQI_GENERAL_ADMIN_STATUS_SUCCESS) {
4726 rc = -EIO;
4727 goto out;
4728 }
4729
4730 ctrl_info->max_inbound_queues =
4731 get_unaligned_le16(&capability->max_inbound_queues);
4732 ctrl_info->max_elements_per_iq =
4733 get_unaligned_le16(&capability->max_elements_per_iq);
4734 ctrl_info->max_iq_element_length =
4735 get_unaligned_le16(&capability->max_iq_element_length)
4736 * 16;
4737 ctrl_info->max_outbound_queues =
4738 get_unaligned_le16(&capability->max_outbound_queues);
4739 ctrl_info->max_elements_per_oq =
4740 get_unaligned_le16(&capability->max_elements_per_oq);
4741 ctrl_info->max_oq_element_length =
4742 get_unaligned_le16(&capability->max_oq_element_length)
4743 * 16;
4744
4745 sop_iu_layer_descriptor =
4746 &capability->iu_layer_descriptors[PQI_PROTOCOL_SOP];
4747
4748 ctrl_info->max_inbound_iu_length_per_firmware =
4749 get_unaligned_le16(
4750 &sop_iu_layer_descriptor->max_inbound_iu_length);
4751 ctrl_info->inbound_spanning_supported =
4752 sop_iu_layer_descriptor->inbound_spanning_supported;
4753 ctrl_info->outbound_spanning_supported =
4754 sop_iu_layer_descriptor->outbound_spanning_supported;
4755
4756out:
4757 kfree(capability);
4758
4759 return rc;
4760}
4761
4762static int pqi_validate_device_capability(struct pqi_ctrl_info *ctrl_info)
4763{
4764 if (ctrl_info->max_iq_element_length <
4765 PQI_OPERATIONAL_IQ_ELEMENT_LENGTH) {
4766 dev_err(&ctrl_info->pci_dev->dev,
4767 "max. inbound queue element length of %d is less than the required length of %d\n",
4768 ctrl_info->max_iq_element_length,
4769 PQI_OPERATIONAL_IQ_ELEMENT_LENGTH);
4770 return -EINVAL;
4771 }
4772
4773 if (ctrl_info->max_oq_element_length <
4774 PQI_OPERATIONAL_OQ_ELEMENT_LENGTH) {
4775 dev_err(&ctrl_info->pci_dev->dev,
4776 "max. outbound queue element length of %d is less than the required length of %d\n",
4777 ctrl_info->max_oq_element_length,
4778 PQI_OPERATIONAL_OQ_ELEMENT_LENGTH);
4779 return -EINVAL;
4780 }
4781
4782 if (ctrl_info->max_inbound_iu_length_per_firmware <
4783 PQI_OPERATIONAL_IQ_ELEMENT_LENGTH) {
4784 dev_err(&ctrl_info->pci_dev->dev,
4785 "max. inbound IU length of %u is less than the min. required length of %d\n",
4786 ctrl_info->max_inbound_iu_length_per_firmware,
4787 PQI_OPERATIONAL_IQ_ELEMENT_LENGTH);
4788 return -EINVAL;
4789 }
4790
77668f41
KB		 4791 if (!ctrl_info->inbound_spanning_supported) {
4792 dev_err(&ctrl_info->pci_dev->dev,
4793 "the controller does not support inbound spanning\n");
4794 return -EINVAL;
4795 }
4796
4797 if (ctrl_info->outbound_spanning_supported) {
4798 dev_err(&ctrl_info->pci_dev->dev,
4799 "the controller supports outbound spanning but this driver does not\n");
4800 return -EINVAL;
4801 }
4802
6c223761
KB		 4803 return 0;
4804}
4805
6c223761
KB		 4806static int pqi_create_event_queue(struct pqi_ctrl_info *ctrl_info)
4807{
4808 int rc;
4809 struct pqi_event_queue *event_queue;
4810 struct pqi_general_admin_request request;
4811 struct pqi_general_admin_response response;
4812
4813 event_queue = &ctrl_info->event_queue;
4814
4815 /*
4816 * Create OQ (Outbound Queue - device to host queue) to dedicate
4817 * to events.
4818 */
4819 memset(&request, 0, sizeof(request));
4820 request.header.iu_type = PQI_REQUEST_IU_GENERAL_ADMIN;
4821 put_unaligned_le16(PQI_GENERAL_ADMIN_IU_LENGTH,
4822 &request.header.iu_length);
4823 request.function_code = PQI_GENERAL_ADMIN_FUNCTION_CREATE_OQ;
4824 put_unaligned_le16(event_queue->oq_id,
4825 &request.data.create_operational_oq.queue_id);
4826 put_unaligned_le64((u64)event_queue->oq_element_array_bus_addr,
4827 &request.data.create_operational_oq.element_array_addr);
4828 put_unaligned_le64((u64)event_queue->oq_pi_bus_addr,
4829 &request.data.create_operational_oq.pi_addr);
4830 put_unaligned_le16(PQI_NUM_EVENT_QUEUE_ELEMENTS,
4831 &request.data.create_operational_oq.num_elements);
4832 put_unaligned_le16(PQI_EVENT_OQ_ELEMENT_LENGTH / 16,
4833 &request.data.create_operational_oq.element_length);
4834 request.data.create_operational_oq.queue_protocol = PQI_PROTOCOL_SOP;
4835 put_unaligned_le16(event_queue->int_msg_num,
4836 &request.data.create_operational_oq.int_msg_num);
4837
4838 rc = pqi_submit_admin_request_synchronous(ctrl_info, &request,
4839 &response);
4840 if (rc)
4841 return rc;
4842
4843 event_queue->oq_ci = ctrl_info->iomem_base +
4844 PQI_DEVICE_REGISTERS_OFFSET +
4845 get_unaligned_le64(
4846 &response.data.create_operational_oq.oq_ci_offset);
4847
4848 return 0;
4849}
4850
061ef06a
KB		 4851static int pqi_create_queue_group(struct pqi_ctrl_info *ctrl_info,
4852 unsigned int group_number)
6c223761 4853{
6c223761
KB		 4854 int rc;
4855 struct pqi_queue_group *queue_group;
4856 struct pqi_general_admin_request request;
4857 struct pqi_general_admin_response response;
4858
061ef06a 4859 queue_group = &ctrl_info->queue_groups[group_number];
6c223761
KB		 4860
4861 /*
4862 * Create IQ (Inbound Queue - host to device queue) for
4863 * RAID path.
4864 */
4865 memset(&request, 0, sizeof(request));
4866 request.header.iu_type = PQI_REQUEST_IU_GENERAL_ADMIN;
4867 put_unaligned_le16(PQI_GENERAL_ADMIN_IU_LENGTH,
4868 &request.header.iu_length);
4869 request.function_code = PQI_GENERAL_ADMIN_FUNCTION_CREATE_IQ;
4870 put_unaligned_le16(queue_group->iq_id[RAID_PATH],
4871 &request.data.create_operational_iq.queue_id);
4872 put_unaligned_le64(
4873 (u64)queue_group->iq_element_array_bus_addr[RAID_PATH],
4874 &request.data.create_operational_iq.element_array_addr);
4875 put_unaligned_le64((u64)queue_group->iq_ci_bus_addr[RAID_PATH],
4876 &request.data.create_operational_iq.ci_addr);
4877 put_unaligned_le16(ctrl_info->num_elements_per_iq,
4878 &request.data.create_operational_iq.num_elements);
4879 put_unaligned_le16(PQI_OPERATIONAL_IQ_ELEMENT_LENGTH / 16,
4880 &request.data.create_operational_iq.element_length);
4881 request.data.create_operational_iq.queue_protocol = PQI_PROTOCOL_SOP;
4882
4883 rc = pqi_submit_admin_request_synchronous(ctrl_info, &request,
4884 &response);
4885 if (rc) {
4886 dev_err(&ctrl_info->pci_dev->dev,
4887 "error creating inbound RAID queue\n");
4888 return rc;
4889 }
4890
4891 queue_group->iq_pi[RAID_PATH] = ctrl_info->iomem_base +
4892 PQI_DEVICE_REGISTERS_OFFSET +
4893 get_unaligned_le64(
4894 &response.data.create_operational_iq.iq_pi_offset);
4895
4896 /*
4897 * Create IQ (Inbound Queue - host to device queue) for
4898 * Advanced I/O (AIO) path.
4899 */
4900 memset(&request, 0, sizeof(request));
4901 request.header.iu_type = PQI_REQUEST_IU_GENERAL_ADMIN;
4902 put_unaligned_le16(PQI_GENERAL_ADMIN_IU_LENGTH,
4903 &request.header.iu_length);
4904 request.function_code = PQI_GENERAL_ADMIN_FUNCTION_CREATE_IQ;
4905 put_unaligned_le16(queue_group->iq_id[AIO_PATH],
4906 &request.data.create_operational_iq.queue_id);
4907 put_unaligned_le64((u64)queue_group->
4908 iq_element_array_bus_addr[AIO_PATH],
4909 &request.data.create_operational_iq.element_array_addr);
4910 put_unaligned_le64((u64)queue_group->iq_ci_bus_addr[AIO_PATH],
4911 &request.data.create_operational_iq.ci_addr);
4912 put_unaligned_le16(ctrl_info->num_elements_per_iq,
4913 &request.data.create_operational_iq.num_elements);
4914 put_unaligned_le16(PQI_OPERATIONAL_IQ_ELEMENT_LENGTH / 16,
4915 &request.data.create_operational_iq.element_length);
4916 request.data.create_operational_iq.queue_protocol = PQI_PROTOCOL_SOP;
4917
4918 rc = pqi_submit_admin_request_synchronous(ctrl_info, &request,
4919 &response);
4920 if (rc) {
4921 dev_err(&ctrl_info->pci_dev->dev,
4922 "error creating inbound AIO queue\n");
339faa81 4923 return rc;
6c223761
KB		 4924 }
4925
4926 queue_group->iq_pi[AIO_PATH] = ctrl_info->iomem_base +
4927 PQI_DEVICE_REGISTERS_OFFSET +
4928 get_unaligned_le64(
4929 &response.data.create_operational_iq.iq_pi_offset);
4930
4931 /*
4932 * Designate the 2nd IQ as the AIO path. By default, all IQs are
4933 * assumed to be for RAID path I/O unless we change the queue's
4934 * property.
4935 */
4936 memset(&request, 0, sizeof(request));
4937 request.header.iu_type = PQI_REQUEST_IU_GENERAL_ADMIN;
4938 put_unaligned_le16(PQI_GENERAL_ADMIN_IU_LENGTH,
4939 &request.header.iu_length);
4940 request.function_code = PQI_GENERAL_ADMIN_FUNCTION_CHANGE_IQ_PROPERTY;
4941 put_unaligned_le16(queue_group->iq_id[AIO_PATH],
4942 &request.data.change_operational_iq_properties.queue_id);
4943 put_unaligned_le32(PQI_IQ_PROPERTY_IS_AIO_QUEUE,
4944 &request.data.change_operational_iq_properties.vendor_specific);
4945
4946 rc = pqi_submit_admin_request_synchronous(ctrl_info, &request,
4947 &response);
4948 if (rc) {
4949 dev_err(&ctrl_info->pci_dev->dev,
4950 "error changing queue property\n");
339faa81 4951 return rc;
6c223761
KB		 4952 }
4953
4954 /*
4955 * Create OQ (Outbound Queue - device to host queue).
4956 */
4957 memset(&request, 0, sizeof(request));
4958 request.header.iu_type = PQI_REQUEST_IU_GENERAL_ADMIN;
4959 put_unaligned_le16(PQI_GENERAL_ADMIN_IU_LENGTH,
4960 &request.header.iu_length);
4961 request.function_code = PQI_GENERAL_ADMIN_FUNCTION_CREATE_OQ;
4962 put_unaligned_le16(queue_group->oq_id,
4963 &request.data.create_operational_oq.queue_id);
4964 put_unaligned_le64((u64)queue_group->oq_element_array_bus_addr,
4965 &request.data.create_operational_oq.element_array_addr);
4966 put_unaligned_le64((u64)queue_group->oq_pi_bus_addr,
4967 &request.data.create_operational_oq.pi_addr);
4968 put_unaligned_le16(ctrl_info->num_elements_per_oq,
4969 &request.data.create_operational_oq.num_elements);
4970 put_unaligned_le16(PQI_OPERATIONAL_OQ_ELEMENT_LENGTH / 16,
4971 &request.data.create_operational_oq.element_length);
4972 request.data.create_operational_oq.queue_protocol = PQI_PROTOCOL_SOP;
4973 put_unaligned_le16(queue_group->int_msg_num,
4974 &request.data.create_operational_oq.int_msg_num);
4975
4976 rc = pqi_submit_admin_request_synchronous(ctrl_info, &request,
4977 &response);
4978 if (rc) {
4979 dev_err(&ctrl_info->pci_dev->dev,
4980 "error creating outbound queue\n");
339faa81 4981 return rc;
6c223761
KB		 4982 }
4983
4984 queue_group->oq_ci = ctrl_info->iomem_base +
4985 PQI_DEVICE_REGISTERS_OFFSET +
4986 get_unaligned_le64(
4987 &response.data.create_operational_oq.oq_ci_offset);
4988
6c223761 4989 return 0;
6c223761
KB		 4990}
4991
4992static int pqi_create_queues(struct pqi_ctrl_info *ctrl_info)
4993{
4994 int rc;
4995 unsigned int i;
4996
4997 rc = pqi_create_event_queue(ctrl_info);
4998 if (rc) {
4999 dev_err(&ctrl_info->pci_dev->dev,
5000 "error creating event queue\n");
5001 return rc;
5002 }
5003
5004 for (i = 0; i < ctrl_info->num_queue_groups; i++) {
061ef06a 5005 rc = pqi_create_queue_group(ctrl_info, i);
6c223761
KB		 5006 if (rc) {
5007 dev_err(&ctrl_info->pci_dev->dev,
5008 "error creating queue group number %u/%u\n",
5009 i, ctrl_info->num_queue_groups);
5010 return rc;
5011 }
5012 }
5013
5014 return 0;
5015}
5016
5017#define PQI_REPORT_EVENT_CONFIG_BUFFER_LENGTH \
5f492a7a 5018 struct_size((struct pqi_event_config *)0, descriptors, PQI_MAX_EVENT_DESCRIPTORS)
6c223761 5019
6a50d6ad
KB		 5020static int pqi_configure_events(struct pqi_ctrl_info *ctrl_info,
5021 bool enable_events)
6c223761
KB		 5022{
5023 int rc;
5024 unsigned int i;
5025 struct pqi_event_config *event_config;
6a50d6ad 5026 struct pqi_event_descriptor *event_descriptor;
6c223761
KB		 5027 struct pqi_general_management_request request;
5028
5029 event_config = kmalloc(PQI_REPORT_EVENT_CONFIG_BUFFER_LENGTH,
5030 GFP_KERNEL);
5031 if (!event_config)
5032 return -ENOMEM;
5033
5034 memset(&request, 0, sizeof(request));
5035
5036 request.header.iu_type = PQI_REQUEST_IU_REPORT_VENDOR_EVENT_CONFIG;
5037 put_unaligned_le16(offsetof(struct pqi_general_management_request,
5038 data.report_event_configuration.sg_descriptors[1]) -
5039 PQI_REQUEST_HEADER_LENGTH, &request.header.iu_length);
5040 put_unaligned_le32(PQI_REPORT_EVENT_CONFIG_BUFFER_LENGTH,
5041 &request.data.report_event_configuration.buffer_length);
5042
5043 rc = pqi_map_single(ctrl_info->pci_dev,
5044 request.data.report_event_configuration.sg_descriptors,
5045 event_config, PQI_REPORT_EVENT_CONFIG_BUFFER_LENGTH,
6917a9cc 5046 DMA_FROM_DEVICE);
6c223761
KB		 5047 if (rc)
5048 goto out;
5049
ae0c189d 5050 rc = pqi_submit_raid_request_synchronous(ctrl_info, &request.header, 0, NULL);
6c223761
KB		 5051
5052 pqi_pci_unmap(ctrl_info->pci_dev,
5053 request.data.report_event_configuration.sg_descriptors, 1,
6917a9cc 5054 DMA_FROM_DEVICE);
6c223761
KB		 5055
5056 if (rc)
5057 goto out;
5058
6a50d6ad
KB		 5059 for (i = 0; i < event_config->num_event_descriptors; i++) {
5060 event_descriptor = &event_config->descriptors[i];
5061 if (enable_events &&
5062 pqi_is_supported_event(event_descriptor->event_type))
583891c9 5063 put_unaligned_le16(ctrl_info->event_queue.oq_id,
6a50d6ad
KB		 5064 &event_descriptor->oq_id);
5065 else
5066 put_unaligned_le16(0, &event_descriptor->oq_id);
5067 }
6c223761
KB		 5068
5069 memset(&request, 0, sizeof(request));
5070
5071 request.header.iu_type = PQI_REQUEST_IU_SET_VENDOR_EVENT_CONFIG;
5072 put_unaligned_le16(offsetof(struct pqi_general_management_request,
5073 data.report_event_configuration.sg_descriptors[1]) -
5074 PQI_REQUEST_HEADER_LENGTH, &request.header.iu_length);
5075 put_unaligned_le32(PQI_REPORT_EVENT_CONFIG_BUFFER_LENGTH,
5076 &request.data.report_event_configuration.buffer_length);
5077
5078 rc = pqi_map_single(ctrl_info->pci_dev,
5079 request.data.report_event_configuration.sg_descriptors,
5080 event_config, PQI_REPORT_EVENT_CONFIG_BUFFER_LENGTH,
6917a9cc 5081 DMA_TO_DEVICE);
6c223761
KB		 5082 if (rc)
5083 goto out;
5084
ae0c189d 5085 rc = pqi_submit_raid_request_synchronous(ctrl_info, &request.header, 0, NULL);
6c223761
KB		 5086
5087 pqi_pci_unmap(ctrl_info->pci_dev,
5088 request.data.report_event_configuration.sg_descriptors, 1,
6917a9cc 5089 DMA_TO_DEVICE);
6c223761
KB		 5090
5091out:
5092 kfree(event_config);
5093
5094 return rc;
5095}
5096
6a50d6ad
KB		 5097static inline int pqi_enable_events(struct pqi_ctrl_info *ctrl_info)
5098{
5099 return pqi_configure_events(ctrl_info, true);
5100}
5101
6c223761
KB		 5102static void pqi_free_all_io_requests(struct pqi_ctrl_info *ctrl_info)
5103{
5104 unsigned int i;
5105 struct device *dev;
5106 size_t sg_chain_buffer_length;
5107 struct pqi_io_request *io_request;
5108
5109 if (!ctrl_info->io_request_pool)
5110 return;
5111
5112 dev = &ctrl_info->pci_dev->dev;
5113 sg_chain_buffer_length = ctrl_info->sg_chain_buffer_length;
5114 io_request = ctrl_info->io_request_pool;
5115
5116 for (i = 0; i < ctrl_info->max_io_slots; i++) {
5117 kfree(io_request->iu);
5118 if (!io_request->sg_chain_buffer)
5119 break;
5120 dma_free_coherent(dev, sg_chain_buffer_length,
5121 io_request->sg_chain_buffer,
5122 io_request->sg_chain_buffer_dma_handle);
5123 io_request++;
5124 }
5125
5126 kfree(ctrl_info->io_request_pool);
5127 ctrl_info->io_request_pool = NULL;
5128}
5129
5130static inline int pqi_alloc_error_buffer(struct pqi_ctrl_info *ctrl_info)
5131{
694c5d5b
KB		 5132 ctrl_info->error_buffer = dma_alloc_coherent(&ctrl_info->pci_dev->dev,
5133 ctrl_info->error_buffer_length,
5134 &ctrl_info->error_buffer_dma_handle,
5135 GFP_KERNEL);
6c223761
KB		 5136 if (!ctrl_info->error_buffer)
5137 return -ENOMEM;
5138
5139 return 0;
5140}
5141
5142static int pqi_alloc_io_resources(struct pqi_ctrl_info *ctrl_info)
5143{
5144 unsigned int i;
5145 void *sg_chain_buffer;
5146 size_t sg_chain_buffer_length;
5147 dma_addr_t sg_chain_buffer_dma_handle;
5148 struct device *dev;
5149 struct pqi_io_request *io_request;
5150
583891c9
KB		 5151 ctrl_info->io_request_pool = kcalloc(ctrl_info->max_io_slots,
5152 sizeof(ctrl_info->io_request_pool[0]), GFP_KERNEL);
6c223761
KB		 5153
5154 if (!ctrl_info->io_request_pool) {
5155 dev_err(&ctrl_info->pci_dev->dev,
5156 "failed to allocate I/O request pool\n");
5157 goto error;
5158 }
5159
5160 dev = &ctrl_info->pci_dev->dev;
5161 sg_chain_buffer_length = ctrl_info->sg_chain_buffer_length;
5162 io_request = ctrl_info->io_request_pool;
5163
5164 for (i = 0; i < ctrl_info->max_io_slots; i++) {
583891c9 5165 io_request->iu = kmalloc(ctrl_info->max_inbound_iu_length, GFP_KERNEL);
6c223761
KB		 5166
5167 if (!io_request->iu) {
5168 dev_err(&ctrl_info->pci_dev->dev,
5169 "failed to allocate IU buffers\n");
5170 goto error;
5171 }
5172
5173 sg_chain_buffer = dma_alloc_coherent(dev,
5174 sg_chain_buffer_length, &sg_chain_buffer_dma_handle,
5175 GFP_KERNEL);
5176
5177 if (!sg_chain_buffer) {
5178 dev_err(&ctrl_info->pci_dev->dev,
5179 "failed to allocate PQI scatter-gather chain buffers\n");
5180 goto error;
5181 }
5182
5183 io_request->index = i;
5184 io_request->sg_chain_buffer = sg_chain_buffer;
583891c9 5185 io_request->sg_chain_buffer_dma_handle = sg_chain_buffer_dma_handle;
6c223761
KB		 5186 io_request++;
5187 }
5188
5189 return 0;
5190
5191error:
5192 pqi_free_all_io_requests(ctrl_info);
5193
5194 return -ENOMEM;
5195}
5196
5197/*
5198 * Calculate required resources that are sized based on max. outstanding
5199 * requests and max. transfer size.
5200 */
5201
5202static void pqi_calculate_io_resources(struct pqi_ctrl_info *ctrl_info)
5203{
5204 u32 max_transfer_size;
5205 u32 max_sg_entries;
5206
5207 ctrl_info->scsi_ml_can_queue =
5208 ctrl_info->max_outstanding_requests - PQI_RESERVED_IO_SLOTS;
5209 ctrl_info->max_io_slots = ctrl_info->max_outstanding_requests;
5210
5211 ctrl_info->error_buffer_length =
5212 ctrl_info->max_io_slots * PQI_ERROR_BUFFER_ELEMENT_LENGTH;
5213
d727a776
KB		 5214 if (reset_devices)
5215 max_transfer_size = min(ctrl_info->max_transfer_size,
5216 PQI_MAX_TRANSFER_SIZE_KDUMP);
5217 else
5218 max_transfer_size = min(ctrl_info->max_transfer_size,
5219 PQI_MAX_TRANSFER_SIZE);
6c223761
KB		 5220
5221 max_sg_entries = max_transfer_size / PAGE_SIZE;
5222
5223 /* +1 to cover when the buffer is not page-aligned. */
5224 max_sg_entries++;
5225
5226 max_sg_entries = min(ctrl_info->max_sg_entries, max_sg_entries);
5227
5228 max_transfer_size = (max_sg_entries - 1) * PAGE_SIZE;
5229
5230 ctrl_info->sg_chain_buffer_length =
e1d213bd
KB		 5231 (max_sg_entries * sizeof(struct pqi_sg_descriptor)) +
5232 PQI_EXTRA_SGL_MEMORY;
6c223761
KB		 5233 ctrl_info->sg_tablesize = max_sg_entries;
5234 ctrl_info->max_sectors = max_transfer_size / 512;
5235}
5236
5237static void pqi_calculate_queue_resources(struct pqi_ctrl_info *ctrl_info)
5238{
6c223761
KB		 5239 int num_queue_groups;
5240 u16 num_elements_per_iq;
5241 u16 num_elements_per_oq;
5242
d727a776
KB		 5243 if (reset_devices) {
5244 num_queue_groups = 1;
5245 } else {
5246 int num_cpus;
5247 int max_queue_groups;
5248
5249 max_queue_groups = min(ctrl_info->max_inbound_queues / 2,
5250 ctrl_info->max_outbound_queues - 1);
5251 max_queue_groups = min(max_queue_groups, PQI_MAX_QUEUE_GROUPS);
6c223761 5252
d727a776
KB		 5253 num_cpus = num_online_cpus();
5254 num_queue_groups = min(num_cpus, ctrl_info->max_msix_vectors);
5255 num_queue_groups = min(num_queue_groups, max_queue_groups);
5256 }
6c223761
KB		 5257
5258 ctrl_info->num_queue_groups = num_queue_groups;
5259
77668f41
KB		 5260 /*
5261 * Make sure that the max. inbound IU length is an even multiple
5262 * of our inbound element length.
5263 */
5264 ctrl_info->max_inbound_iu_length =
5265 (ctrl_info->max_inbound_iu_length_per_firmware /
5266 PQI_OPERATIONAL_IQ_ELEMENT_LENGTH) *
5267 PQI_OPERATIONAL_IQ_ELEMENT_LENGTH;
6c223761
KB		 5268
5269 num_elements_per_iq =
5270 (ctrl_info->max_inbound_iu_length /
5271 PQI_OPERATIONAL_IQ_ELEMENT_LENGTH);
5272
5273 /* Add one because one element in each queue is unusable. */
5274 num_elements_per_iq++;
5275
5276 num_elements_per_iq = min(num_elements_per_iq,
5277 ctrl_info->max_elements_per_iq);
5278
5279 num_elements_per_oq = ((num_elements_per_iq - 1) * 2) + 1;
5280 num_elements_per_oq = min(num_elements_per_oq,
5281 ctrl_info->max_elements_per_oq);
5282
5283 ctrl_info->num_elements_per_iq = num_elements_per_iq;
5284 ctrl_info->num_elements_per_oq = num_elements_per_oq;
5285
5286 ctrl_info->max_sg_per_iu =
5287 ((ctrl_info->max_inbound_iu_length -
5288 PQI_OPERATIONAL_IQ_ELEMENT_LENGTH) /
5289 sizeof(struct pqi_sg_descriptor)) +
5290 PQI_MAX_EMBEDDED_SG_DESCRIPTORS;
6702d2c4
DB		 5291
5292 ctrl_info->max_sg_per_r56_iu =
5293 ((ctrl_info->max_inbound_iu_length -
5294 PQI_OPERATIONAL_IQ_ELEMENT_LENGTH) /
5295 sizeof(struct pqi_sg_descriptor)) +
5296 PQI_MAX_EMBEDDED_R56_SG_DESCRIPTORS;
6c223761
KB		 5297}
5298
583891c9
KB		 5299static inline void pqi_set_sg_descriptor(struct pqi_sg_descriptor *sg_descriptor,
5300 struct scatterlist *sg)
6c223761
KB		 5301{
5302 u64 address = (u64)sg_dma_address(sg);
5303 unsigned int length = sg_dma_len(sg);
5304
5305 put_unaligned_le64(address, &sg_descriptor->address);
5306 put_unaligned_le32(length, &sg_descriptor->length);
5307 put_unaligned_le32(0, &sg_descriptor->flags);
5308}
5309
1a22bc4b
DB		 5310static unsigned int pqi_build_sg_list(struct pqi_sg_descriptor *sg_descriptor,
5311 struct scatterlist *sg, int sg_count, struct pqi_io_request *io_request,
5312 int max_sg_per_iu, bool *chained)
6c223761
KB		 5313{
5314 int i;
6c223761 5315 unsigned int num_sg_in_iu;
6c223761 5316
1a22bc4b 5317 *chained = false;
6c223761 5318 i = 0;
1a22bc4b
DB		 5319 num_sg_in_iu = 0;
5320 max_sg_per_iu--; /* Subtract 1 to leave room for chain marker. */
6c223761
KB		 5321
5322 while (1) {
5323 pqi_set_sg_descriptor(sg_descriptor, sg);
1a22bc4b 5324 if (!*chained)
6c223761
KB		 5325 num_sg_in_iu++;
5326 i++;
5327 if (i == sg_count)
5328 break;
5329 sg_descriptor++;
5330 if (i == max_sg_per_iu) {
1a22bc4b 5331 put_unaligned_le64((u64)io_request->sg_chain_buffer_dma_handle,
6c223761 5332 &sg_descriptor->address);
1a22bc4b 5333 put_unaligned_le32((sg_count - num_sg_in_iu) * sizeof(*sg_descriptor),
6c223761 5334 &sg_descriptor->length);
1a22bc4b
DB		 5335 put_unaligned_le32(CISS_SG_CHAIN, &sg_descriptor->flags);
5336 *chained = true;
6c223761
KB		 5337 num_sg_in_iu++;
5338 sg_descriptor = io_request->sg_chain_buffer;
5339 }
5340 sg = sg_next(sg);
5341 }
5342
5343 put_unaligned_le32(CISS_SG_LAST, &sg_descriptor->flags);
6c223761 5344
1a22bc4b 5345 return num_sg_in_iu;
6c223761
KB		 5346}
5347
6c223761
KB		 5348static int pqi_build_raid_sg_list(struct pqi_ctrl_info *ctrl_info,
5349 struct pqi_raid_path_request *request, struct scsi_cmnd *scmd,
6c223761
KB		 5350 struct pqi_io_request *io_request)
5351{
6c223761
KB		 5352 u16 iu_length;
5353 int sg_count;
a60eec02
KB		 5354 bool chained;
5355 unsigned int num_sg_in_iu;
6c223761
KB		 5356 struct scatterlist *sg;
5357 struct pqi_sg_descriptor *sg_descriptor;
5358
5359 sg_count = scsi_dma_map(scmd);
5360 if (sg_count < 0)
5361 return sg_count;
a60eec02 5362
6c223761 5363 iu_length = offsetof(struct pqi_raid_path_request, sg_descriptors) -
a60eec02 5364 PQI_REQUEST_HEADER_LENGTH;
a60eec02 5365
6c223761
KB		 5366 if (sg_count == 0)
5367 goto out;
5368
a60eec02
KB		 5369 sg = scsi_sglist(scmd);
5370 sg_descriptor = request->sg_descriptors;
a60eec02 5371
1a22bc4b
DB		 5372 num_sg_in_iu = pqi_build_sg_list(sg_descriptor, sg, sg_count, io_request,
5373 ctrl_info->max_sg_per_iu, &chained);
6c223761 5374
a60eec02 5375 request->partial = chained;
6c223761 5376 iu_length += num_sg_in_iu * sizeof(*sg_descriptor);
a60eec02
KB		 5377
5378out:
6c223761 5379 put_unaligned_le16(iu_length, &request->header.iu_length);
6c223761
KB		 5380
5381 return 0;
5382}
5383
7a012c23
DB		 5384static int pqi_build_aio_r1_sg_list(struct pqi_ctrl_info *ctrl_info,
5385 struct pqi_aio_r1_path_request *request, struct scsi_cmnd *scmd,
5386 struct pqi_io_request *io_request)
6c223761 5387{
7a012c23
DB		 5388 u16 iu_length;
5389 int sg_count;
5390 bool chained;
5391 unsigned int num_sg_in_iu;
5392 struct scatterlist *sg;
5393 struct pqi_sg_descriptor *sg_descriptor;
5394
5395 sg_count = scsi_dma_map(scmd);
5396 if (sg_count < 0)
5397 return sg_count;
5398
5399 iu_length = offsetof(struct pqi_aio_r1_path_request, sg_descriptors) -
5400 PQI_REQUEST_HEADER_LENGTH;
5401 num_sg_in_iu = 0;
5402
5403 if (sg_count == 0)
5404 goto out;
5405
5406 sg = scsi_sglist(scmd);
5407 sg_descriptor = request->sg_descriptors;
5408
5409 num_sg_in_iu = pqi_build_sg_list(sg_descriptor, sg, sg_count, io_request,
5410 ctrl_info->max_sg_per_iu, &chained);
5411
5412 request->partial = chained;
5413 iu_length += num_sg_in_iu * sizeof(*sg_descriptor);
5414
5415out:
5416 put_unaligned_le16(iu_length, &request->header.iu_length);
5417 request->num_sg_descriptors = num_sg_in_iu;
5418
5419 return 0;
5420}
5421
6702d2c4
DB		 5422static int pqi_build_aio_r56_sg_list(struct pqi_ctrl_info *ctrl_info,
5423 struct pqi_aio_r56_path_request *request, struct scsi_cmnd *scmd,
5424 struct pqi_io_request *io_request)
5425{
5426 u16 iu_length;
5427 int sg_count;
5428 bool chained;
5429 unsigned int num_sg_in_iu;
5430 struct scatterlist *sg;
5431 struct pqi_sg_descriptor *sg_descriptor;
5432
5433 sg_count = scsi_dma_map(scmd);
5434 if (sg_count < 0)
5435 return sg_count;
5436
5437 iu_length = offsetof(struct pqi_aio_r56_path_request, sg_descriptors) -
5438 PQI_REQUEST_HEADER_LENGTH;
5439 num_sg_in_iu = 0;
5440
5441 if (sg_count != 0) {
5442 sg = scsi_sglist(scmd);
5443 sg_descriptor = request->sg_descriptors;
5444
5445 num_sg_in_iu = pqi_build_sg_list(sg_descriptor, sg, sg_count, io_request,
5446 ctrl_info->max_sg_per_r56_iu, &chained);
5447
5448 request->partial = chained;
5449 iu_length += num_sg_in_iu * sizeof(*sg_descriptor);
5450 }
5451
5452 put_unaligned_le16(iu_length, &request->header.iu_length);
5453 request->num_sg_descriptors = num_sg_in_iu;
5454
5455 return 0;
5456}
5457
6c223761
KB		 5458static int pqi_build_aio_sg_list(struct pqi_ctrl_info *ctrl_info,
5459 struct pqi_aio_path_request *request, struct scsi_cmnd *scmd,
5460 struct pqi_io_request *io_request)
5461{
6c223761
KB		 5462 u16 iu_length;
5463 int sg_count;
a60eec02
KB		 5464 bool chained;
5465 unsigned int num_sg_in_iu;
6c223761
KB		 5466 struct scatterlist *sg;
5467 struct pqi_sg_descriptor *sg_descriptor;
5468
5469 sg_count = scsi_dma_map(scmd);
5470 if (sg_count < 0)
5471 return sg_count;
a60eec02
KB		 5472
5473 iu_length = offsetof(struct pqi_aio_path_request, sg_descriptors) -
5474 PQI_REQUEST_HEADER_LENGTH;
5475 num_sg_in_iu = 0;
5476
6c223761
KB		 5477 if (sg_count == 0)
5478 goto out;
5479
a60eec02
KB		 5480 sg = scsi_sglist(scmd);
5481 sg_descriptor = request->sg_descriptors;
a60eec02 5482
1a22bc4b
DB		 5483 num_sg_in_iu = pqi_build_sg_list(sg_descriptor, sg, sg_count, io_request,
5484 ctrl_info->max_sg_per_iu, &chained);
6c223761 5485
a60eec02 5486 request->partial = chained;
6c223761 5487 iu_length += num_sg_in_iu * sizeof(*sg_descriptor);
a60eec02
KB		 5488
5489out:
6c223761
KB		 5490 put_unaligned_le16(iu_length, &request->header.iu_length);
5491 request->num_sg_descriptors = num_sg_in_iu;
5492
5493 return 0;
5494}
5495
5496static void pqi_raid_io_complete(struct pqi_io_request *io_request,
5497 void *context)
5498{
5499 struct scsi_cmnd *scmd;
5500
5501 scmd = io_request->scmd;
5502 pqi_free_io_request(io_request);
5503 scsi_dma_unmap(scmd);
5504 pqi_scsi_done(scmd);
5505}
5506
376fb880
KB		 5507static int pqi_raid_submit_scsi_cmd_with_io_request(
5508 struct pqi_ctrl_info *ctrl_info, struct pqi_io_request *io_request,
6c223761
KB		 5509 struct pqi_scsi_dev *device, struct scsi_cmnd *scmd,
5510 struct pqi_queue_group *queue_group)
5511{
5512 int rc;
5513 size_t cdb_length;
6c223761
KB		 5514 struct pqi_raid_path_request *request;
5515
6c223761
KB		 5516 io_request->io_complete_callback = pqi_raid_io_complete;
5517 io_request->scmd = scmd;
5518
6c223761 5519 request = io_request->iu;
583891c9 5520 memset(request, 0, offsetof(struct pqi_raid_path_request, sg_descriptors));
6c223761
KB		 5521
5522 request->header.iu_type = PQI_REQUEST_IU_RAID_PATH_IO;
5523 put_unaligned_le32(scsi_bufflen(scmd), &request->buffer_length);
5524 request->task_attribute = SOP_TASK_ATTRIBUTE_SIMPLE;
5525 put_unaligned_le16(io_request->index, &request->request_id);
5526 request->error_index = request->request_id;
583891c9 5527 memcpy(request->lun_number, device->scsi3addr, sizeof(request->lun_number));
904f2bfd 5528 request->ml_device_lun_number = (u8)scmd->device->lun;
6c223761
KB		 5529
5530 cdb_length = min_t(size_t, scmd->cmd_len, sizeof(request->cdb));
5531 memcpy(request->cdb, scmd->cmnd, cdb_length);
5532
5533 switch (cdb_length) {
5534 case 6:
5535 case 10:
5536 case 12:
5537 case 16:
583891c9 5538 request->additional_cdb_bytes_usage = SOP_ADDITIONAL_CDB_BYTES_0;
6c223761
KB		 5539 break;
5540 case 20:
583891c9 5541 request->additional_cdb_bytes_usage = SOP_ADDITIONAL_CDB_BYTES_4;
6c223761
KB		 5542 break;
5543 case 24:
583891c9 5544 request->additional_cdb_bytes_usage = SOP_ADDITIONAL_CDB_BYTES_8;
6c223761
KB		 5545 break;
5546 case 28:
583891c9 5547 request->additional_cdb_bytes_usage = SOP_ADDITIONAL_CDB_BYTES_12;
6c223761
KB		 5548 break;
5549 case 32:
5550 default:
583891c9 5551 request->additional_cdb_bytes_usage = SOP_ADDITIONAL_CDB_BYTES_16;
6c223761
KB		 5552 break;
5553 }
5554
5555 switch (scmd->sc_data_direction) {
69695aea 5556 case DMA_FROM_DEVICE:
6c223761
KB		 5557 request->data_direction = SOP_READ_FLAG;
5558 break;
69695aea 5559 case DMA_TO_DEVICE:
6c223761
KB		 5560 request->data_direction = SOP_WRITE_FLAG;
5561 break;
5562 case DMA_NONE:
5563 request->data_direction = SOP_NO_DIRECTION_FLAG;
5564 break;
5565 case DMA_BIDIRECTIONAL:
5566 request->data_direction = SOP_BIDIRECTIONAL;
5567 break;
5568 default:
5569 dev_err(&ctrl_info->pci_dev->dev,
5570 "unknown data direction: %d\n",
5571 scmd->sc_data_direction);
6c223761
KB		 5572 break;
5573 }
5574
5575 rc = pqi_build_raid_sg_list(ctrl_info, request, scmd, io_request);
5576 if (rc) {
5577 pqi_free_io_request(io_request);
5578 return SCSI_MLQUEUE_HOST_BUSY;
5579 }
5580
5581 pqi_start_io(ctrl_info, queue_group, RAID_PATH, io_request);
5582
5583 return 0;
5584}
5585
376fb880
KB		 5586static inline int pqi_raid_submit_scsi_cmd(struct pqi_ctrl_info *ctrl_info,
5587 struct pqi_scsi_dev *device, struct scsi_cmnd *scmd,
5588 struct pqi_queue_group *queue_group)
5589{
5590 struct pqi_io_request *io_request;
5591
b27ac2fa
DB		 5592 io_request = pqi_alloc_io_request(ctrl_info, scmd);
5593 if (!io_request)
5594 return SCSI_MLQUEUE_HOST_BUSY;
376fb880
KB		 5595
5596 return pqi_raid_submit_scsi_cmd_with_io_request(ctrl_info, io_request,
5597 device, scmd, queue_group);
5598}
5599
376fb880
KB		 5600static bool pqi_raid_bypass_retry_needed(struct pqi_io_request *io_request)
5601{
5602 struct scsi_cmnd *scmd;
03b288cf 5603 struct pqi_scsi_dev *device;
376fb880
KB		 5604 struct pqi_ctrl_info *ctrl_info;
5605
5606 if (!io_request->raid_bypass)
5607 return false;
5608
5609 scmd = io_request->scmd;
5610 if ((scmd->result & 0xff) == SAM_STAT_GOOD)
5611 return false;
5612 if (host_byte(scmd->result) == DID_NO_CONNECT)
5613 return false;
5614
03b288cf 5615 device = scmd->device->hostdata;
5be9db06 5616 if (pqi_device_offline(device) || pqi_device_in_remove(device))
03b288cf
KB		 5617 return false;
5618
376fb880
KB		 5619 ctrl_info = shost_to_hba(scmd->device->host);
5620 if (pqi_ctrl_offline(ctrl_info))
5621 return false;
5622
5623 return true;
5624}
5625
6c223761
KB		 5626static void pqi_aio_io_complete(struct pqi_io_request *io_request,
5627 void *context)
5628{
5629 struct scsi_cmnd *scmd;
5630
5631 scmd = io_request->scmd;
5632 scsi_dma_unmap(scmd);
5be9db06 5633 if (io_request->status == -EAGAIN || pqi_raid_bypass_retry_needed(io_request)) {
6c223761 5634 set_host_byte(scmd, DID_IMM_RETRY);
c1ea387d 5635 pqi_cmd_priv(scmd)->this_residual++;
376fb880 5636 }
5be9db06 5637
6c223761
KB		 5638 pqi_free_io_request(io_request);
5639 pqi_scsi_done(scmd);
5640}
5641
b4dc06a9 5642static inline bool pqi_is_io_high_priority(struct pqi_ctrl_info *ctrl_info,
2a47834d
GW		 5643 struct pqi_scsi_dev *device, struct scsi_cmnd *scmd)
5644{
5645 bool io_high_prio;
5646 int priority_class;
5647
5648 io_high_prio = false;
b4dc06a9 5649
2a47834d
GW		 5650 if (device->ncq_prio_enable) {
5651 priority_class =
5652 IOPRIO_PRIO_CLASS(req_get_ioprio(scsi_cmd_to_rq(scmd)));
5653 if (priority_class == IOPRIO_CLASS_RT) {
b4dc06a9 5654 /* Set NCQ priority for read/write commands. */
2a47834d
GW		 5655 switch (scmd->cmnd[0]) {
5656 case WRITE_16:
5657 case READ_16:
5658 case WRITE_12:
5659 case READ_12:
5660 case WRITE_10:
5661 case READ_10:
5662 case WRITE_6:
5663 case READ_6:
5664 io_high_prio = true;
5665 break;
2a47834d
GW		 5666 }
5667 }
5668 }
5669
5670 return io_high_prio;
5671}
5672
6c223761
KB		 5673static inline int pqi_aio_submit_scsi_cmd(struct pqi_ctrl_info *ctrl_info,
5674 struct pqi_scsi_dev *device, struct scsi_cmnd *scmd,
5675 struct pqi_queue_group *queue_group)
5676{
2a47834d
GW		 5677 bool io_high_prio;
5678
b4dc06a9
KB		 5679 io_high_prio = pqi_is_io_high_priority(ctrl_info, device, scmd);
5680
6c223761 5681 return pqi_aio_submit_io(ctrl_info, scmd, device->aio_handle,
2a47834d
GW		 5682 scmd->cmnd, scmd->cmd_len, queue_group, NULL,
5683 false, io_high_prio);
6c223761
KB		 5684}
5685
5686static int pqi_aio_submit_io(struct pqi_ctrl_info *ctrl_info,
5687 struct scsi_cmnd *scmd, u32 aio_handle, u8 *cdb,
5688 unsigned int cdb_length, struct pqi_queue_group *queue_group,
2a47834d
GW		 5689 struct pqi_encryption_info *encryption_info, bool raid_bypass,
5690 bool io_high_prio)
6c223761
KB		 5691{
5692 int rc;
5693 struct pqi_io_request *io_request;
5694 struct pqi_aio_path_request *request;
904f2bfd 5695 struct pqi_scsi_dev *device;
6c223761 5696
904f2bfd 5697 device = scmd->device->hostdata;
b27ac2fa
DB		 5698 io_request = pqi_alloc_io_request(ctrl_info, scmd);
5699 if (!io_request)
5700 return SCSI_MLQUEUE_HOST_BUSY;
6c223761
KB		 5701 io_request->io_complete_callback = pqi_aio_io_complete;
5702 io_request->scmd = scmd;
376fb880 5703 io_request->raid_bypass = raid_bypass;
6c223761
KB		 5704
5705 request = io_request->iu;
9e98e60b 5706 memset(request, 0, offsetof(struct pqi_aio_path_request, sg_descriptors));
6c223761
KB		 5707
5708 request->header.iu_type = PQI_REQUEST_IU_AIO_PATH_IO;
5709 put_unaligned_le32(aio_handle, &request->nexus_id);
5710 put_unaligned_le32(scsi_bufflen(scmd), &request->buffer_length);
5711 request->task_attribute = SOP_TASK_ATTRIBUTE_SIMPLE;
2a47834d 5712 request->command_priority = io_high_prio;
6c223761
KB		 5713 put_unaligned_le16(io_request->index, &request->request_id);
5714 request->error_index = request->request_id;
904f2bfd
KM		 5715 if (!pqi_is_logical_device(device) && ctrl_info->multi_lun_device_supported)
5716 put_unaligned_le64(((scmd->device->lun) << 8), &request->lun_number);
6c223761
KB		 5717 if (cdb_length > sizeof(request->cdb))
5718 cdb_length = sizeof(request->cdb);
5719 request->cdb_length = cdb_length;
5720 memcpy(request->cdb, cdb, cdb_length);
5721
5722 switch (scmd->sc_data_direction) {
5723 case DMA_TO_DEVICE:
5724 request->data_direction = SOP_READ_FLAG;
5725 break;
5726 case DMA_FROM_DEVICE:
5727 request->data_direction = SOP_WRITE_FLAG;
5728 break;
5729 case DMA_NONE:
5730 request->data_direction = SOP_NO_DIRECTION_FLAG;
5731 break;
5732 case DMA_BIDIRECTIONAL:
5733 request->data_direction = SOP_BIDIRECTIONAL;
5734 break;
5735 default:
5736 dev_err(&ctrl_info->pci_dev->dev,
5737 "unknown data direction: %d\n",
5738 scmd->sc_data_direction);
6c223761
KB		 5739 break;
5740 }
5741
5742 if (encryption_info) {
5743 request->encryption_enable = true;
5744 put_unaligned_le16(encryption_info->data_encryption_key_index,
5745 &request->data_encryption_key_index);
5746 put_unaligned_le32(encryption_info->encrypt_tweak_lower,
5747 &request->encrypt_tweak_lower);
5748 put_unaligned_le32(encryption_info->encrypt_tweak_upper,
5749 &request->encrypt_tweak_upper);
5750 }
5751
5752 rc = pqi_build_aio_sg_list(ctrl_info, request, scmd, io_request);
5753 if (rc) {
5754 pqi_free_io_request(io_request);
5755 return SCSI_MLQUEUE_HOST_BUSY;
5756 }
5757
5758 pqi_start_io(ctrl_info, queue_group, AIO_PATH, io_request);
5759
5760 return 0;
5761}
5762
7a012c23
DB		 5763static int pqi_aio_submit_r1_write_io(struct pqi_ctrl_info *ctrl_info,
5764 struct scsi_cmnd *scmd, struct pqi_queue_group *queue_group,
5765 struct pqi_encryption_info *encryption_info, struct pqi_scsi_dev *device,
5766 struct pqi_scsi_dev_raid_map_data *rmd)
7a012c23
DB		 5767{
5768 int rc;
5769 struct pqi_io_request *io_request;
5770 struct pqi_aio_r1_path_request *r1_request;
5771
b27ac2fa
DB		 5772 io_request = pqi_alloc_io_request(ctrl_info, scmd);
5773 if (!io_request)
5774 return SCSI_MLQUEUE_HOST_BUSY;
5775
7a012c23
DB		 5776 io_request->io_complete_callback = pqi_aio_io_complete;
5777 io_request->scmd = scmd;
5778 io_request->raid_bypass = true;
5779
5780 r1_request = io_request->iu;
5781 memset(r1_request, 0, offsetof(struct pqi_aio_r1_path_request, sg_descriptors));
5782
5783 r1_request->header.iu_type = PQI_REQUEST_IU_AIO_PATH_RAID1_IO;
7a012c23
DB		 5784 put_unaligned_le16(*(u16 *)device->scsi3addr & 0x3fff, &r1_request->volume_id);
5785 r1_request->num_drives = rmd->num_it_nexus_entries;
5786 put_unaligned_le32(rmd->it_nexus[0], &r1_request->it_nexus_1);
5787 put_unaligned_le32(rmd->it_nexus[1], &r1_request->it_nexus_2);
5788 if (rmd->num_it_nexus_entries == 3)
5789 put_unaligned_le32(rmd->it_nexus[2], &r1_request->it_nexus_3);
5790
5791 put_unaligned_le32(scsi_bufflen(scmd), &r1_request->data_length);
5792 r1_request->task_attribute = SOP_TASK_ATTRIBUTE_SIMPLE;
5793 put_unaligned_le16(io_request->index, &r1_request->request_id);
5794 r1_request->error_index = r1_request->request_id;
5795 if (rmd->cdb_length > sizeof(r1_request->cdb))
5796 rmd->cdb_length = sizeof(r1_request->cdb);
5797 r1_request->cdb_length = rmd->cdb_length;
5798 memcpy(r1_request->cdb, rmd->cdb, rmd->cdb_length);
5799
5800 /* The direction is always write. */
5801 r1_request->data_direction = SOP_READ_FLAG;
5802
5803 if (encryption_info) {
5804 r1_request->encryption_enable = true;
5805 put_unaligned_le16(encryption_info->data_encryption_key_index,
5806 &r1_request->data_encryption_key_index);
5807 put_unaligned_le32(encryption_info->encrypt_tweak_lower,
5808 &r1_request->encrypt_tweak_lower);
5809 put_unaligned_le32(encryption_info->encrypt_tweak_upper,
5810 &r1_request->encrypt_tweak_upper);
5811 }
5812
5813 rc = pqi_build_aio_r1_sg_list(ctrl_info, r1_request, scmd, io_request);
5814 if (rc) {
5815 pqi_free_io_request(io_request);
5816 return SCSI_MLQUEUE_HOST_BUSY;
5817 }
5818
5819 pqi_start_io(ctrl_info, queue_group, AIO_PATH, io_request);
5820
5821 return 0;
5822}
5823
6702d2c4
DB		 5824static int pqi_aio_submit_r56_write_io(struct pqi_ctrl_info *ctrl_info,
5825 struct scsi_cmnd *scmd, struct pqi_queue_group *queue_group,
5826 struct pqi_encryption_info *encryption_info, struct pqi_scsi_dev *device,
5827 struct pqi_scsi_dev_raid_map_data *rmd)
5828{
5829 int rc;
5830 struct pqi_io_request *io_request;
5831 struct pqi_aio_r56_path_request *r56_request;
5832
b27ac2fa
DB		 5833 io_request = pqi_alloc_io_request(ctrl_info, scmd);
5834 if (!io_request)
5835 return SCSI_MLQUEUE_HOST_BUSY;
6702d2c4
DB		 5836 io_request->io_complete_callback = pqi_aio_io_complete;
5837 io_request->scmd = scmd;
5838 io_request->raid_bypass = true;
5839
5840 r56_request = io_request->iu;
5841 memset(r56_request, 0, offsetof(struct pqi_aio_r56_path_request, sg_descriptors));
5842
5843 if (device->raid_level == SA_RAID_5 || device->raid_level == SA_RAID_51)
5844 r56_request->header.iu_type = PQI_REQUEST_IU_AIO_PATH_RAID5_IO;
5845 else
5846 r56_request->header.iu_type = PQI_REQUEST_IU_AIO_PATH_RAID6_IO;
5847
5848 put_unaligned_le16(*(u16 *)device->scsi3addr & 0x3fff, &r56_request->volume_id);
5849 put_unaligned_le32(rmd->aio_handle, &r56_request->data_it_nexus);
5850 put_unaligned_le32(rmd->p_parity_it_nexus, &r56_request->p_parity_it_nexus);
5851 if (rmd->raid_level == SA_RAID_6) {
5852 put_unaligned_le32(rmd->q_parity_it_nexus, &r56_request->q_parity_it_nexus);
5853 r56_request->xor_multiplier = rmd->xor_mult;
5854 }
5855 put_unaligned_le32(scsi_bufflen(scmd), &r56_request->data_length);
5856 r56_request->task_attribute = SOP_TASK_ATTRIBUTE_SIMPLE;
5857 put_unaligned_le64(rmd->row, &r56_request->row);
5858
5859 put_unaligned_le16(io_request->index, &r56_request->request_id);
5860 r56_request->error_index = r56_request->request_id;
5861
5862 if (rmd->cdb_length > sizeof(r56_request->cdb))
5863 rmd->cdb_length = sizeof(r56_request->cdb);
5864 r56_request->cdb_length = rmd->cdb_length;
5865 memcpy(r56_request->cdb, rmd->cdb, rmd->cdb_length);
5866
5867 /* The direction is always write. */
5868 r56_request->data_direction = SOP_READ_FLAG;
5869
5870 if (encryption_info) {
5871 r56_request->encryption_enable = true;
5872 put_unaligned_le16(encryption_info->data_encryption_key_index,
5873 &r56_request->data_encryption_key_index);
5874 put_unaligned_le32(encryption_info->encrypt_tweak_lower,
5875 &r56_request->encrypt_tweak_lower);
5876 put_unaligned_le32(encryption_info->encrypt_tweak_upper,
5877 &r56_request->encrypt_tweak_upper);
5878 }
5879
5880 rc = pqi_build_aio_r56_sg_list(ctrl_info, r56_request, scmd, io_request);
5881 if (rc) {
5882 pqi_free_io_request(io_request);
5883 return SCSI_MLQUEUE_HOST_BUSY;
5884 }
5885
5886 pqi_start_io(ctrl_info, queue_group, AIO_PATH, io_request);
5887
5888 return 0;
5889}
5890
061ef06a
KB		 5891static inline u16 pqi_get_hw_queue(struct pqi_ctrl_info *ctrl_info,
5892 struct scsi_cmnd *scmd)
5893{
b27ac2fa
DB		 5894 /*
5895 * We are setting host_tagset = 1 during init.
5896 */
5897 return blk_mq_unique_tag_to_hwq(blk_mq_unique_tag(scsi_cmd_to_rq(scmd)));
061ef06a
KB		 5898}
5899
5be9db06
KB		 5900static inline bool pqi_is_bypass_eligible_request(struct scsi_cmnd *scmd)
5901{
12db0f93 5902 if (blk_rq_is_passthrough(scsi_cmd_to_rq(scmd)))
5be9db06
KB		 5903 return false;
5904
c1ea387d 5905 return pqi_cmd_priv(scmd)->this_residual == 0;
5be9db06
KB		 5906}
5907
7561a7e4
KB		 5908/*
5909 * This function gets called just before we hand the completed SCSI request
5910 * back to the SML.
5911 */
5912
5913void pqi_prep_for_scsi_done(struct scsi_cmnd *scmd)
5914{
5915 struct pqi_scsi_dev *device;
5916
1e46731e
MR		 5917 if (!scmd->device) {
5918 set_host_byte(scmd, DID_NO_CONNECT);
5919 return;
5920 }
5921
7561a7e4 5922 device = scmd->device->hostdata;
1e46731e
MR		 5923 if (!device) {
5924 set_host_byte(scmd, DID_NO_CONNECT);
5925 return;
5926 }
5927
904f2bfd 5928 atomic_dec(&device->scsi_cmds_outstanding[scmd->device->lun]);
7561a7e4
KB		 5929}
5930
c7ffedb3 5931static bool pqi_is_parity_write_stream(struct pqi_ctrl_info *ctrl_info,
7d81d2b8 5932 struct scsi_cmnd *scmd)
c7ffedb3
DB		 5933{
5934 u32 oldest_jiffies;
5935 u8 lru_index;
5936 int i;
5937 int rc;
5938 struct pqi_scsi_dev *device;
5939 struct pqi_stream_data *pqi_stream_data;
5940 struct pqi_scsi_dev_raid_map_data rmd;
5941
5942 if (!ctrl_info->enable_stream_detection)
5943 return false;
5944
5945 rc = pqi_get_aio_lba_and_block_count(scmd, &rmd);
5946 if (rc)
5947 return false;
5948
5949 /* Check writes only. */
5950 if (!rmd.is_write)
5951 return false;
5952
5953 device = scmd->device->hostdata;
5954
5955 /* Check for RAID 5/6 streams. */
5956 if (device->raid_level != SA_RAID_5 && device->raid_level != SA_RAID_6)
5957 return false;
5958
5959 /*
5960 * If controller does not support AIO RAID{5,6} writes, need to send
5961 * requests down non-AIO path.
5962 */
5963 if ((device->raid_level == SA_RAID_5 && !ctrl_info->enable_r5_writes) ||
5964 (device->raid_level == SA_RAID_6 && !ctrl_info->enable_r6_writes))
5965 return true;
5966
5967 lru_index = 0;
5968 oldest_jiffies = INT_MAX;
5969 for (i = 0; i < NUM_STREAMS_PER_LUN; i++) {
5970 pqi_stream_data = &device->stream_data[i];
5971 /*
5972 * Check for adjacent request or request is within
5973 * the previous request.
5974 */
5975 if ((pqi_stream_data->next_lba &&
5976 rmd.first_block >= pqi_stream_data->next_lba) &&
5977 rmd.first_block <= pqi_stream_data->next_lba +
5978 rmd.block_cnt) {
5979 pqi_stream_data->next_lba = rmd.first_block +
5980 rmd.block_cnt;
5981 pqi_stream_data->last_accessed = jiffies;
5982 return true;
5983 }
5984
5985 /* unused entry */
5986 if (pqi_stream_data->last_accessed == 0) {
5987 lru_index = i;
5988 break;
5989 }
5990
5991 /* Find entry with oldest last accessed time. */
5992 if (pqi_stream_data->last_accessed <= oldest_jiffies) {
5993 oldest_jiffies = pqi_stream_data->last_accessed;
5994 lru_index = i;
5995 }
5996 }
5997
5998 /* Set LRU entry. */
5999 pqi_stream_data = &device->stream_data[lru_index];
6000 pqi_stream_data->last_accessed = jiffies;
6001 pqi_stream_data->next_lba = rmd.first_block + rmd.block_cnt;
6002
6003 return false;
6004}
6005
6006static int pqi_scsi_queue_command(struct Scsi_Host *shost, struct scsi_cmnd *scmd)
6c223761
KB		 6007{
6008 int rc;
6009 struct pqi_ctrl_info *ctrl_info;
6010 struct pqi_scsi_dev *device;
061ef06a 6011 u16 hw_queue;
6c223761
KB		 6012 struct pqi_queue_group *queue_group;
6013 bool raid_bypassed;
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
904f2bfd 6023 atomic_inc(&device->scsi_cmds_outstanding[scmd->device->lun]);
7561a7e4 6024
583891c9
KB		 6025 ctrl_info = shost_to_hba(shost);
6026
1bdf6e93 6027 if (pqi_ctrl_offline(ctrl_info) || pqi_device_in_remove(device)) {
6c223761
KB		 6028 set_host_byte(scmd, DID_NO_CONNECT);
6029 pqi_scsi_done(scmd);
6030 return 0;
6031 }
6032
5be9db06 6033 if (pqi_ctrl_blocked(ctrl_info)) {
7561a7e4
KB		 6034 rc = SCSI_MLQUEUE_HOST_BUSY;
6035 goto out;
6036 }
6037
7d81d2b8
KB		 6038 /*
6039 * This is necessary because the SML doesn't zero out this field during
6040 * error recovery.
6041 */
6042 scmd->result = 0;
6043
061ef06a
KB		 6044 hw_queue = pqi_get_hw_queue(ctrl_info, scmd);
6045 queue_group = &ctrl_info->queue_groups[hw_queue];
6c223761
KB		 6046
6047 if (pqi_is_logical_device(device)) {
6048 raid_bypassed = false;
588a63fe 6049 if (device->raid_bypass_enabled &&
5be9db06
KB		 6050 pqi_is_bypass_eligible_request(scmd) &&
6051 !pqi_is_parity_write_stream(ctrl_info, scmd)) {
6052 rc = pqi_raid_bypass_submit_scsi_cmd(ctrl_info, device, scmd, queue_group);
8b664fef 6053 if (rc == 0 || rc == SCSI_MLQUEUE_HOST_BUSY) {
376fb880 6054 raid_bypassed = true;
8b664fef
KB		 6055 atomic_inc(&device->raid_bypass_cnt);
6056 }
6c223761
KB		 6057 }
6058 if (!raid_bypassed)
8b664fef 6059 rc = pqi_raid_submit_scsi_cmd(ctrl_info, device, scmd, queue_group);
6c223761
KB		 6060 } else {
6061 if (device->aio_enabled)
8b664fef 6062 rc = pqi_aio_submit_scsi_cmd(ctrl_info, device, scmd, queue_group);
6c223761 6063 else
8b664fef 6064 rc = pqi_raid_submit_scsi_cmd(ctrl_info, device, scmd, queue_group);
6c223761
KB		 6065 }
6066
7561a7e4 6067out:
7561a7e4 6068 if (rc)
904f2bfd 6069 atomic_dec(&device->scsi_cmds_outstanding[scmd->device->lun]);
7561a7e4 6070
6c223761
KB		 6071 return rc;
6072}
6073
6ce1ddf5 6074static unsigned int pqi_queued_io_count(struct pqi_ctrl_info *ctrl_info)
7561a7e4 6075{
6ce1ddf5 6076 unsigned int i;
7561a7e4
KB		 6077 unsigned int path;
6078 unsigned long flags;
6ce1ddf5
KB		 6079 unsigned int queued_io_count;
6080 struct pqi_queue_group *queue_group;
6081 struct pqi_io_request *io_request;
7561a7e4 6082
6ce1ddf5
KB		 6083 queued_io_count = 0;
6084
6085 for (i = 0; i < ctrl_info->num_queue_groups; i++) {
6086 queue_group = &ctrl_info->queue_groups[i];
6087 for (path = 0; path < 2; path++) {
6088 spin_lock_irqsave(&queue_group->submit_lock[path], flags);
6089 list_for_each_entry(io_request, &queue_group->request_list[path], request_list_entry)
6090 queued_io_count++;
6091 spin_unlock_irqrestore(&queue_group->submit_lock[path], flags);
7561a7e4
KB		 6092 }
6093 }
6094
6ce1ddf5 6095 return queued_io_count;
7561a7e4
KB		 6096}
6097
6ce1ddf5 6098static unsigned int pqi_nonempty_inbound_queue_count(struct pqi_ctrl_info *ctrl_info)
7561a7e4 6099{
7561a7e4
KB		 6100 unsigned int i;
6101 unsigned int path;
6ce1ddf5 6102 unsigned int nonempty_inbound_queue_count;
7561a7e4
KB		 6103 struct pqi_queue_group *queue_group;
6104 pqi_index_t iq_pi;
6105 pqi_index_t iq_ci;
6106
6ce1ddf5
KB		 6107 nonempty_inbound_queue_count = 0;
6108
7561a7e4
KB		 6109 for (i = 0; i < ctrl_info->num_queue_groups; i++) {
6110 queue_group = &ctrl_info->queue_groups[i];
7561a7e4
KB		 6111 for (path = 0; path < 2; path++) {
6112 iq_pi = queue_group->iq_pi_copy[path];
6ce1ddf5
KB		 6113 iq_ci = readl(queue_group->iq_ci[path]);
6114 if (iq_ci != iq_pi)
6115 nonempty_inbound_queue_count++;
6116 }
6117 }
7561a7e4 6118
6ce1ddf5
KB		 6119 return nonempty_inbound_queue_count;
6120}
6121
6122#define PQI_INBOUND_QUEUES_NONEMPTY_WARNING_TIMEOUT_SECS 10
6123
6124static int pqi_wait_until_inbound_queues_empty(struct pqi_ctrl_info *ctrl_info)
6125{
6126 unsigned long start_jiffies;
6127 unsigned long warning_timeout;
6128 unsigned int queued_io_count;
6129 unsigned int nonempty_inbound_queue_count;
6130 bool displayed_warning;
6131
6132 displayed_warning = false;
6133 start_jiffies = jiffies;
42dc0426 6134 warning_timeout = (PQI_INBOUND_QUEUES_NONEMPTY_WARNING_TIMEOUT_SECS * HZ) + start_jiffies;
6ce1ddf5
KB		 6135
6136 while (1) {
6137 queued_io_count = pqi_queued_io_count(ctrl_info);
6138 nonempty_inbound_queue_count = pqi_nonempty_inbound_queue_count(ctrl_info);
6139 if (queued_io_count == 0 && nonempty_inbound_queue_count == 0)
6140 break;
6141 pqi_check_ctrl_health(ctrl_info);
6142 if (pqi_ctrl_offline(ctrl_info))
6143 return -ENXIO;
6144 if (time_after(jiffies, warning_timeout)) {
6145 dev_warn(&ctrl_info->pci_dev->dev,
6146 "waiting %u seconds for queued I/O to drain (queued I/O count: %u; non-empty inbound queue count: %u)\n",
6147 jiffies_to_msecs(jiffies - start_jiffies) / 1000, queued_io_count, nonempty_inbound_queue_count);
6148 displayed_warning = true;
42dc0426 6149 warning_timeout = (PQI_INBOUND_QUEUES_NONEMPTY_WARNING_TIMEOUT_SECS * HZ) + jiffies;
7561a7e4 6150 }
6ce1ddf5 6151 usleep_range(1000, 2000);
7561a7e4
KB		 6152 }
6153
6ce1ddf5
KB		 6154 if (displayed_warning)
6155 dev_warn(&ctrl_info->pci_dev->dev,
6156 "queued I/O drained after waiting for %u seconds\n",
6157 jiffies_to_msecs(jiffies - start_jiffies) / 1000);
6158
7561a7e4
KB		 6159 return 0;
6160}
6161
6162static void pqi_fail_io_queued_for_device(struct pqi_ctrl_info *ctrl_info,
6163 struct pqi_scsi_dev *device)
6164{
6165 unsigned int i;
6166 unsigned int path;
6167 struct pqi_queue_group *queue_group;
6168 unsigned long flags;
6169 struct pqi_io_request *io_request;
6170 struct pqi_io_request *next;
6171 struct scsi_cmnd *scmd;
6172 struct pqi_scsi_dev *scsi_device;
6173
6174 for (i = 0; i < ctrl_info->num_queue_groups; i++) {
6175 queue_group = &ctrl_info->queue_groups[i];
6176
6177 for (path = 0; path < 2; path++) {
6178 spin_lock_irqsave(
6179 &queue_group->submit_lock[path], flags);
6180
6181 list_for_each_entry_safe(io_request, next,
6182 &queue_group->request_list[path],
6183 request_list_entry) {
583891c9 6184
7561a7e4
KB		 6185 scmd = io_request->scmd;
6186 if (!scmd)
6187 continue;
6188
6189 scsi_device = scmd->device->hostdata;
6190 if (scsi_device != device)
6191 continue;
6192
6193 list_del(&io_request->request_list_entry);
6194 set_host_byte(scmd, DID_RESET);
b622a601
MB		 6195 pqi_free_io_request(io_request);
6196 scsi_dma_unmap(scmd);
7561a7e4
KB		 6197 pqi_scsi_done(scmd);
6198 }
6199
6200 spin_unlock_irqrestore(
6201 &queue_group->submit_lock[path], flags);
6202 }
6203 }
6204}
6205
18ff5f08 6206#define PQI_PENDING_IO_WARNING_TIMEOUT_SECS 10
4fd22c13 6207
061ef06a 6208static int pqi_device_wait_for_pending_io(struct pqi_ctrl_info *ctrl_info,
904f2bfd 6209 struct pqi_scsi_dev *device, u8 lun, unsigned long timeout_msecs)
061ef06a 6210{
18ff5f08
KB		 6211 int cmds_outstanding;
6212 unsigned long start_jiffies;
6213 unsigned long warning_timeout;
6214 unsigned long msecs_waiting;
1e46731e 6215
18ff5f08 6216 start_jiffies = jiffies;
42dc0426 6217 warning_timeout = (PQI_PENDING_IO_WARNING_TIMEOUT_SECS * HZ) + start_jiffies;
1e46731e 6218
904f2bfd 6219 while ((cmds_outstanding = atomic_read(&device->scsi_cmds_outstanding[lun])) > 0) {
331f7e99
SB		 6220 if (ctrl_info->ctrl_removal_state != PQI_CTRL_GRACEFUL_REMOVAL) {
6221 pqi_check_ctrl_health(ctrl_info);
6222 if (pqi_ctrl_offline(ctrl_info))
6223 return -ENXIO;
6224 }
18ff5f08 6225 msecs_waiting = jiffies_to_msecs(jiffies - start_jiffies);
6ce1ddf5 6226 if (msecs_waiting >= timeout_msecs) {
18ff5f08
KB		 6227 dev_err(&ctrl_info->pci_dev->dev,
6228 "scsi %d:%d:%d:%d: timed out after %lu seconds waiting for %d outstanding command(s)\n",
6229 ctrl_info->scsi_host->host_no, device->bus, device->target,
904f2bfd 6230 lun, msecs_waiting / 1000, cmds_outstanding);
18ff5f08 6231 return -ETIMEDOUT;
061ef06a 6232 }
18ff5f08
KB		 6233 if (time_after(jiffies, warning_timeout)) {
6234 dev_warn(&ctrl_info->pci_dev->dev,
6235 "scsi %d:%d:%d:%d: waiting %lu seconds 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);
42dc0426 6238 warning_timeout = (PQI_PENDING_IO_WARNING_TIMEOUT_SECS * HZ) + jiffies;
4fd22c13 6239 }
061ef06a
KB		 6240 usleep_range(1000, 2000);
6241 }
6242
6243 return 0;
6244}
6245
14bb215d
KB		 6246static void pqi_lun_reset_complete(struct pqi_io_request *io_request,
6247 void *context)
6c223761 6248{
14bb215d 6249 struct completion *waiting = context;
6c223761 6250
14bb215d
KB		 6251 complete(waiting);
6252}
6c223761 6253
c2922f17 6254#define PQI_LUN_RESET_POLL_COMPLETION_SECS 10
14bb215d
KB		 6255
6256static int pqi_wait_for_lun_reset_completion(struct pqi_ctrl_info *ctrl_info,
904f2bfd 6257 struct pqi_scsi_dev *device, u8 lun, struct completion *wait)
14bb215d
KB		 6258{
6259 int rc;
18ff5f08 6260 unsigned int wait_secs;
6ce1ddf5 6261 int cmds_outstanding;
18ff5f08
KB		 6262
6263 wait_secs = 0;
14bb215d
KB		 6264
6265 while (1) {
6266 if (wait_for_completion_io_timeout(wait,
42dc0426 6267 PQI_LUN_RESET_POLL_COMPLETION_SECS * HZ)) {
14bb215d
KB		 6268 rc = 0;
6269 break;
6c223761
KB		 6270 }
6271
14bb215d
KB		 6272 pqi_check_ctrl_health(ctrl_info);
6273 if (pqi_ctrl_offline(ctrl_info)) {
4e8415e3 6274 rc = -ENXIO;
14bb215d
KB		 6275 break;
6276 }
18ff5f08
KB		 6277
6278 wait_secs += PQI_LUN_RESET_POLL_COMPLETION_SECS;
904f2bfd 6279 cmds_outstanding = atomic_read(&device->scsi_cmds_outstanding[lun]);
18ff5f08 6280 dev_warn(&ctrl_info->pci_dev->dev,
6ce1ddf5 6281 "scsi %d:%d:%d:%d: waiting %u seconds for LUN reset to complete (%d command(s) outstanding)\n",
904f2bfd 6282 ctrl_info->scsi_host->host_no, device->bus, device->target, lun, wait_secs, cmds_outstanding);
6c223761 6283 }
6c223761 6284
14bb215d 6285 return rc;
6c223761
KB		 6286}
6287
18ff5f08
KB		 6288#define PQI_LUN_RESET_FIRMWARE_TIMEOUT_SECS 30
6289
904f2bfd 6290static int pqi_lun_reset(struct pqi_ctrl_info *ctrl_info, struct scsi_cmnd *scmd)
6c223761
KB		 6291{
6292 int rc;
6293 struct pqi_io_request *io_request;
6294 DECLARE_COMPLETION_ONSTACK(wait);
6295 struct pqi_task_management_request *request;
904f2bfd 6296 struct pqi_scsi_dev *device;
6c223761 6297
904f2bfd 6298 device = scmd->device->hostdata;
b27ac2fa 6299 io_request = pqi_alloc_io_request(ctrl_info, NULL);
14bb215d 6300 io_request->io_complete_callback = pqi_lun_reset_complete;
6c223761
KB		 6301 io_request->context = &wait;
6302
6303 request = io_request->iu;
6304 memset(request, 0, sizeof(*request));
6305
6306 request->header.iu_type = PQI_REQUEST_IU_TASK_MANAGEMENT;
6307 put_unaligned_le16(sizeof(*request) - PQI_REQUEST_HEADER_LENGTH,
6308 &request->header.iu_length);
6309 put_unaligned_le16(io_request->index, &request->request_id);
6310 memcpy(request->lun_number, device->scsi3addr,
6311 sizeof(request->lun_number));
904f2bfd
KM		 6312 if (!pqi_is_logical_device(device) && ctrl_info->multi_lun_device_supported)
6313 request->ml_device_lun_number = (u8)scmd->device->lun;
6c223761 6314 request->task_management_function = SOP_TASK_MANAGEMENT_LUN_RESET;
c2922f17 6315 if (ctrl_info->tmf_iu_timeout_supported)
18ff5f08 6316 put_unaligned_le16(PQI_LUN_RESET_FIRMWARE_TIMEOUT_SECS, &request->timeout);
6c223761 6317
583891c9 6318 pqi_start_io(ctrl_info, &ctrl_info->queue_groups[PQI_DEFAULT_QUEUE_GROUP], RAID_PATH,
6c223761
KB		 6319 io_request);
6320
904f2bfd 6321 rc = pqi_wait_for_lun_reset_completion(ctrl_info, device, (u8)scmd->device->lun, &wait);
14bb215d 6322 if (rc == 0)
6c223761 6323 rc = io_request->status;
6c223761
KB		 6324
6325 pqi_free_io_request(io_request);
6c223761
KB		 6326
6327 return rc;
6328}
6329
18ff5f08
KB		 6330#define PQI_LUN_RESET_RETRIES 3
6331#define PQI_LUN_RESET_RETRY_INTERVAL_MSECS (10 * 1000)
6332#define PQI_LUN_RESET_PENDING_IO_TIMEOUT_MSECS (10 * 60 * 1000)
6333#define PQI_LUN_RESET_FAILED_PENDING_IO_TIMEOUT_MSECS (2 * 60 * 1000)
6c223761 6334
904f2bfd 6335static int pqi_lun_reset_with_retries(struct pqi_ctrl_info *ctrl_info, struct scsi_cmnd *scmd)
6c223761 6336{
18ff5f08
KB		 6337 int reset_rc;
6338 int wait_rc;
3406384b 6339 unsigned int retries;
18ff5f08 6340 unsigned long timeout_msecs;
904f2bfd 6341 struct pqi_scsi_dev *device;
6c223761 6342
904f2bfd 6343 device = scmd->device->hostdata;
3406384b 6344 for (retries = 0;;) {
904f2bfd 6345 reset_rc = pqi_lun_reset(ctrl_info, scmd);
4e7d2602 6346 if (reset_rc == 0 || reset_rc == -ENODEV || ++retries > PQI_LUN_RESET_RETRIES)
3406384b
MR		 6347 break;
6348 msleep(PQI_LUN_RESET_RETRY_INTERVAL_MSECS);
6349 }
429fab70 6350
18ff5f08
KB		 6351 timeout_msecs = reset_rc ? PQI_LUN_RESET_FAILED_PENDING_IO_TIMEOUT_MSECS :
6352 PQI_LUN_RESET_PENDING_IO_TIMEOUT_MSECS;
4fd22c13 6353
904f2bfd 6354 wait_rc = pqi_device_wait_for_pending_io(ctrl_info, device, scmd->device->lun, timeout_msecs);
18ff5f08
KB		 6355 if (wait_rc && reset_rc == 0)
6356 reset_rc = wait_rc;
6c223761 6357
18ff5f08 6358 return reset_rc == 0 ? SUCCESS : FAILED;
6c223761
KB		 6359}
6360
904f2bfd 6361static int pqi_device_reset(struct pqi_ctrl_info *ctrl_info, struct scsi_cmnd *scmd)
4fd22c13
MR		 6362{
6363 int rc;
904f2bfd 6364 struct pqi_scsi_dev *device;
4fd22c13 6365
904f2bfd 6366 device = scmd->device->hostdata;
4fd22c13
MR		 6367 pqi_ctrl_block_requests(ctrl_info);
6368 pqi_ctrl_wait_until_quiesced(ctrl_info);
6369 pqi_fail_io_queued_for_device(ctrl_info, device);
6370 rc = pqi_wait_until_inbound_queues_empty(ctrl_info);
4fd22c13
MR		 6371 if (rc)
6372 rc = FAILED;
6373 else
904f2bfd 6374 rc = pqi_lun_reset_with_retries(ctrl_info, scmd);
37f33181 6375 pqi_ctrl_unblock_requests(ctrl_info);
429fab70 6376
4fd22c13
MR		 6377 return rc;
6378}
6379
6c223761
KB		 6380static int pqi_eh_device_reset_handler(struct scsi_cmnd *scmd)
6381{
6382 int rc;
7561a7e4 6383 struct Scsi_Host *shost;
6c223761
KB		 6384 struct pqi_ctrl_info *ctrl_info;
6385 struct pqi_scsi_dev *device;
6386
7561a7e4
KB		 6387 shost = scmd->device->host;
6388 ctrl_info = shost_to_hba(shost);
6c223761
KB		 6389 device = scmd->device->hostdata;
6390
37f33181
KB		 6391 mutex_lock(&ctrl_info->lun_reset_mutex);
6392
6c223761 6393 dev_err(&ctrl_info->pci_dev->dev,
f0e473e0
MB		 6394 "resetting scsi %d:%d:%d:%d due to cmd 0x%02x\n",
6395 shost->host_no,
904f2bfd 6396 device->bus, device->target, (u32)scmd->device->lun,
f0e473e0 6397 scmd->cmd_len > 0 ? scmd->cmnd[0] : 0xff);
6c223761 6398
7561a7e4 6399 pqi_check_ctrl_health(ctrl_info);
37f33181 6400 if (pqi_ctrl_offline(ctrl_info))
7561a7e4 6401 rc = FAILED;
37f33181 6402 else
904f2bfd 6403 rc = pqi_device_reset(ctrl_info, scmd);
429fab70 6404
6c223761
KB		 6405 dev_err(&ctrl_info->pci_dev->dev,
6406 "reset of scsi %d:%d:%d:%d: %s\n",
904f2bfd 6407 shost->host_no, device->bus, device->target, (u32)scmd->device->lun,
6c223761
KB		 6408 rc == SUCCESS ? "SUCCESS" : "FAILED");
6409
37f33181
KB		 6410 mutex_unlock(&ctrl_info->lun_reset_mutex);
6411
6c223761
KB		 6412 return rc;
6413}
6414
6415static int pqi_slave_alloc(struct scsi_device *sdev)
6416{
6417 struct pqi_scsi_dev *device;
6418 unsigned long flags;
6419 struct pqi_ctrl_info *ctrl_info;
6420 struct scsi_target *starget;
6421 struct sas_rphy *rphy;
6422
6423 ctrl_info = shost_to_hba(sdev->host);
6424
6425 spin_lock_irqsave(&ctrl_info->scsi_device_list_lock, flags);
6426
6427 if (sdev_channel(sdev) == PQI_PHYSICAL_DEVICE_BUS) {
6428 starget = scsi_target(sdev);
6429 rphy = target_to_rphy(starget);
6430 device = pqi_find_device_by_sas_rphy(ctrl_info, rphy);
6431 if (device) {
d4dc6aea
KB		 6432 if (device->target_lun_valid) {
6433 device->ignore_device = true;
6434 } else {
6435 device->target = sdev_id(sdev);
6436 device->lun = sdev->lun;
6437 device->target_lun_valid = true;
6438 }
6c223761
KB		 6439 }
6440 } else {
6441 device = pqi_find_scsi_dev(ctrl_info, sdev_channel(sdev),
6442 sdev_id(sdev), sdev->lun);
6443 }
6444
94086f5b 6445 if (device) {
6c223761
KB		 6446 sdev->hostdata = device;
6447 device->sdev = sdev;
6448 if (device->queue_depth) {
6449 device->advertised_queue_depth = device->queue_depth;
6450 scsi_change_queue_depth(sdev,
6451 device->advertised_queue_depth);
6452 }
99a12b48 6453 if (pqi_is_logical_device(device)) {
b6e2ef67 6454 pqi_disable_write_same(sdev);
99a12b48 6455 } else {
2b447f81 6456 sdev->allow_restart = 1;
99a12b48
KB		 6457 if (device->device_type == SA_DEVICE_TYPE_NVME)
6458 pqi_disable_write_same(sdev);
6459 }
6c223761
KB		 6460 }
6461
6462 spin_unlock_irqrestore(&ctrl_info->scsi_device_list_lock, flags);
6463
6464 return 0;
6465}
6466
a4e1d0b7 6467static void pqi_map_queues(struct Scsi_Host *shost)
52198226
CH		 6468{
6469 struct pqi_ctrl_info *ctrl_info = shost_to_hba(shost);
6470
a4e1d0b7
BVA		 6471 blk_mq_pci_map_queues(&shost->tag_set.map[HCTX_TYPE_DEFAULT],
6472 ctrl_info->pci_dev, 0);
52198226
CH		 6473}
6474
d4dc6aea
KB		 6475static inline bool pqi_is_tape_changer_device(struct pqi_scsi_dev *device)
6476{
6477 return device->devtype == TYPE_TAPE || device->devtype == TYPE_MEDIUM_CHANGER;
6478}
6479
ce143793
KB		 6480static int pqi_slave_configure(struct scsi_device *sdev)
6481{
d4dc6aea 6482 int rc = 0;
ce143793
KB		 6483 struct pqi_scsi_dev *device;
6484
6485 device = sdev->hostdata;
6486 device->devtype = sdev->type;
6487
d4dc6aea
KB		 6488 if (pqi_is_tape_changer_device(device) && device->ignore_device) {
6489 rc = -ENXIO;
6490 device->ignore_device = false;
6491 }
6492
6493 return rc;
ce143793
KB		 6494}
6495
2d80f405
KB		 6496static void pqi_slave_destroy(struct scsi_device *sdev)
6497{
6498 struct pqi_ctrl_info *ctrl_info;
6499 struct pqi_scsi_dev *device;
6500 int mutex_acquired;
6501 unsigned long flags;
6502
6503 ctrl_info = shost_to_hba(sdev->host);
6504
6505 mutex_acquired = mutex_trylock(&ctrl_info->scan_mutex);
6506 if (!mutex_acquired)
6507 return;
6508
6509 device = sdev->hostdata;
6510 if (!device) {
6511 mutex_unlock(&ctrl_info->scan_mutex);
6512 return;
6513 }
6514
cc9befcb
KM		 6515 device->lun_count--;
6516 if (device->lun_count > 0) {
6517 mutex_unlock(&ctrl_info->scan_mutex);
6518 return;
6519 }
6520
2d80f405
KB		 6521 spin_lock_irqsave(&ctrl_info->scsi_device_list_lock, flags);
6522 list_del(&device->scsi_device_list_entry);
6523 spin_unlock_irqrestore(&ctrl_info->scsi_device_list_lock, flags);
6524
6525 mutex_unlock(&ctrl_info->scan_mutex);
6526
6527 pqi_dev_info(ctrl_info, "removed", device);
6528 pqi_free_device(device);
6529}
6530
8b664fef 6531static int pqi_getpciinfo_ioctl(struct pqi_ctrl_info *ctrl_info, void __user *arg)
6c223761
KB		 6532{
6533 struct pci_dev *pci_dev;
6534 u32 subsystem_vendor;
6535 u32 subsystem_device;
6536 cciss_pci_info_struct pciinfo;
6537
6538 if (!arg)
6539 return -EINVAL;
6540
6541 pci_dev = ctrl_info->pci_dev;
6542
6543 pciinfo.domain = pci_domain_nr(pci_dev->bus);
6544 pciinfo.bus = pci_dev->bus->number;
6545 pciinfo.dev_fn = pci_dev->devfn;
6546 subsystem_vendor = pci_dev->subsystem_vendor;
6547 subsystem_device = pci_dev->subsystem_device;
8b664fef 6548 pciinfo.board_id = ((subsystem_device << 16) & 0xffff0000) | subsystem_vendor;
6c223761
KB		 6549
6550 if (copy_to_user(arg, &pciinfo, sizeof(pciinfo)))
6551 return -EFAULT;
6552
6553 return 0;
6554}
6555
6556static int pqi_getdrivver_ioctl(void __user *arg)
6557{
6558 u32 version;
6559
6560 if (!arg)
6561 return -EINVAL;
6562
6563 version = (DRIVER_MAJOR << 28) | (DRIVER_MINOR << 24) |
6564 (DRIVER_RELEASE << 16) | DRIVER_REVISION;
6565
6566 if (copy_to_user(arg, &version, sizeof(version)))
6567 return -EFAULT;
6568
6569 return 0;
6570}
6571
6572struct ciss_error_info {
6573 u8 scsi_status;
6574 int command_status;
6575 size_t sense_data_length;
6576};
6577
6578static void pqi_error_info_to_ciss(struct pqi_raid_error_info *pqi_error_info,
6579 struct ciss_error_info *ciss_error_info)
6580{
6581 int ciss_cmd_status;
6582 size_t sense_data_length;
6583
6584 switch (pqi_error_info->data_out_result) {
6585 case PQI_DATA_IN_OUT_GOOD:
6586 ciss_cmd_status = CISS_CMD_STATUS_SUCCESS;
6587 break;
6588 case PQI_DATA_IN_OUT_UNDERFLOW:
6589 ciss_cmd_status = CISS_CMD_STATUS_DATA_UNDERRUN;
6590 break;
6591 case PQI_DATA_IN_OUT_BUFFER_OVERFLOW:
6592 ciss_cmd_status = CISS_CMD_STATUS_DATA_OVERRUN;
6593 break;
6594 case PQI_DATA_IN_OUT_PROTOCOL_ERROR:
6595 case PQI_DATA_IN_OUT_BUFFER_ERROR:
6596 case PQI_DATA_IN_OUT_BUFFER_OVERFLOW_DESCRIPTOR_AREA:
6597 case PQI_DATA_IN_OUT_BUFFER_OVERFLOW_BRIDGE:
6598 case PQI_DATA_IN_OUT_ERROR:
6599 ciss_cmd_status = CISS_CMD_STATUS_PROTOCOL_ERROR;
6600 break;
6601 case PQI_DATA_IN_OUT_HARDWARE_ERROR:
6602 case PQI_DATA_IN_OUT_PCIE_FABRIC_ERROR:
6603 case PQI_DATA_IN_OUT_PCIE_COMPLETION_TIMEOUT:
6604 case PQI_DATA_IN_OUT_PCIE_COMPLETER_ABORT_RECEIVED:
6605 case PQI_DATA_IN_OUT_PCIE_UNSUPPORTED_REQUEST_RECEIVED:
6606 case PQI_DATA_IN_OUT_PCIE_ECRC_CHECK_FAILED:
6607 case PQI_DATA_IN_OUT_PCIE_UNSUPPORTED_REQUEST:
6608 case PQI_DATA_IN_OUT_PCIE_ACS_VIOLATION:
6609 case PQI_DATA_IN_OUT_PCIE_TLP_PREFIX_BLOCKED:
6610 case PQI_DATA_IN_OUT_PCIE_POISONED_MEMORY_READ:
6611 ciss_cmd_status = CISS_CMD_STATUS_HARDWARE_ERROR;
6612 break;
6613 case PQI_DATA_IN_OUT_UNSOLICITED_ABORT:
6614 ciss_cmd_status = CISS_CMD_STATUS_UNSOLICITED_ABORT;
6615 break;
6616 case PQI_DATA_IN_OUT_ABORTED:
6617 ciss_cmd_status = CISS_CMD_STATUS_ABORTED;
6618 break;
6619 case PQI_DATA_IN_OUT_TIMEOUT:
6620 ciss_cmd_status = CISS_CMD_STATUS_TIMEOUT;
6621 break;
6622 default:
6623 ciss_cmd_status = CISS_CMD_STATUS_TARGET_STATUS;
6624 break;
6625 }
6626
6627 sense_data_length =
6628 get_unaligned_le16(&pqi_error_info->sense_data_length);
6629 if (sense_data_length == 0)
6630 sense_data_length =
6631 get_unaligned_le16(&pqi_error_info->response_data_length);
6632 if (sense_data_length)
6633 if (sense_data_length > sizeof(pqi_error_info->data))
6634 sense_data_length = sizeof(pqi_error_info->data);
6635
6636 ciss_error_info->scsi_status = pqi_error_info->status;
6637 ciss_error_info->command_status = ciss_cmd_status;
6638 ciss_error_info->sense_data_length = sense_data_length;
6639}
6640
6641static int pqi_passthru_ioctl(struct pqi_ctrl_info *ctrl_info, void __user *arg)
6642{
6643 int rc;
6644 char *kernel_buffer = NULL;
6645 u16 iu_length;
6646 size_t sense_data_length;
6647 IOCTL_Command_struct iocommand;
6648 struct pqi_raid_path_request request;
6649 struct pqi_raid_error_info pqi_error_info;
6650 struct ciss_error_info ciss_error_info;
6651
6652 if (pqi_ctrl_offline(ctrl_info))
6653 return -ENXIO;
2790cd4d
KB		 6654 if (pqi_ofa_in_progress(ctrl_info) && pqi_ctrl_blocked(ctrl_info))
6655 return -EBUSY;
6c223761
KB		 6656 if (!arg)
6657 return -EINVAL;
6658 if (!capable(CAP_SYS_RAWIO))
6659 return -EPERM;
6660 if (copy_from_user(&iocommand, arg, sizeof(iocommand)))
6661 return -EFAULT;
6662 if (iocommand.buf_size < 1 &&
6663 iocommand.Request.Type.Direction != XFER_NONE)
6664 return -EINVAL;
6665 if (iocommand.Request.CDBLen > sizeof(request.cdb))
6666 return -EINVAL;
6667 if (iocommand.Request.Type.Type != TYPE_CMD)
6668 return -EINVAL;
6669
6670 switch (iocommand.Request.Type.Direction) {
6671 case XFER_NONE:
6672 case XFER_WRITE:
6673 case XFER_READ:
41555d54 6674 case XFER_READ | XFER_WRITE:
6c223761
KB		 6675 break;
6676 default:
6677 return -EINVAL;
6678 }
6679
6680 if (iocommand.buf_size > 0) {
6681 kernel_buffer = kmalloc(iocommand.buf_size, GFP_KERNEL);
6682 if (!kernel_buffer)
6683 return -ENOMEM;
6684 if (iocommand.Request.Type.Direction & XFER_WRITE) {
6685 if (copy_from_user(kernel_buffer, iocommand.buf,
6686 iocommand.buf_size)) {
6687 rc = -EFAULT;
6688 goto out;
6689 }
6690 } else {
6691 memset(kernel_buffer, 0, iocommand.buf_size);
6692 }
6693 }
6694
6695 memset(&request, 0, sizeof(request));
6696
6697 request.header.iu_type = PQI_REQUEST_IU_RAID_PATH_IO;
6698 iu_length = offsetof(struct pqi_raid_path_request, sg_descriptors) -
6699 PQI_REQUEST_HEADER_LENGTH;
6700 memcpy(request.lun_number, iocommand.LUN_info.LunAddrBytes,
6701 sizeof(request.lun_number));
6702 memcpy(request.cdb, iocommand.Request.CDB, iocommand.Request.CDBLen);
6703 request.additional_cdb_bytes_usage = SOP_ADDITIONAL_CDB_BYTES_0;
6704
6705 switch (iocommand.Request.Type.Direction) {
6706 case XFER_NONE:
6707 request.data_direction = SOP_NO_DIRECTION_FLAG;
6708 break;
6709 case XFER_WRITE:
6710 request.data_direction = SOP_WRITE_FLAG;
6711 break;
6712 case XFER_READ:
6713 request.data_direction = SOP_READ_FLAG;
6714 break;
41555d54
KB		 6715 case XFER_READ | XFER_WRITE:
6716 request.data_direction = SOP_BIDIRECTIONAL;
6717 break;
6c223761
KB		 6718 }
6719
6720 request.task_attribute = SOP_TASK_ATTRIBUTE_SIMPLE;
6721
6722 if (iocommand.buf_size > 0) {
6723 put_unaligned_le32(iocommand.buf_size, &request.buffer_length);
6724
6725 rc = pqi_map_single(ctrl_info->pci_dev,
6726 &request.sg_descriptors[0], kernel_buffer,
6917a9cc 6727 iocommand.buf_size, DMA_BIDIRECTIONAL);
6c223761
KB		 6728 if (rc)
6729 goto out;
6730
6731 iu_length += sizeof(request.sg_descriptors[0]);
6732 }
6733
6734 put_unaligned_le16(iu_length, &request.header.iu_length);
6735
21432010 6736 if (ctrl_info->raid_iu_timeout_supported)
6737 put_unaligned_le32(iocommand.Request.Timeout, &request.timeout);
6738
6c223761 6739 rc = pqi_submit_raid_request_synchronous(ctrl_info, &request.header,
ae0c189d 6740 PQI_SYNC_FLAGS_INTERRUPTABLE, &pqi_error_info);
6c223761
KB		 6741
6742 if (iocommand.buf_size > 0)
6743 pqi_pci_unmap(ctrl_info->pci_dev, request.sg_descriptors, 1,
6917a9cc 6744 DMA_BIDIRECTIONAL);
6c223761
KB		 6745
6746 memset(&iocommand.error_info, 0, sizeof(iocommand.error_info));
6747
6748 if (rc == 0) {
6749 pqi_error_info_to_ciss(&pqi_error_info, &ciss_error_info);
6750 iocommand.error_info.ScsiStatus = ciss_error_info.scsi_status;
6751 iocommand.error_info.CommandStatus =
6752 ciss_error_info.command_status;
6753 sense_data_length = ciss_error_info.sense_data_length;
6754 if (sense_data_length) {
6755 if (sense_data_length >
6756 sizeof(iocommand.error_info.SenseInfo))
6757 sense_data_length =
6758 sizeof(iocommand.error_info.SenseInfo);
6759 memcpy(iocommand.error_info.SenseInfo,
6760 pqi_error_info.data, sense_data_length);
6761 iocommand.error_info.SenseLen = sense_data_length;
6762 }
6763 }
6764
6765 if (copy_to_user(arg, &iocommand, sizeof(iocommand))) {
6766 rc = -EFAULT;
6767 goto out;
6768 }
6769
6770 if (rc == 0 && iocommand.buf_size > 0 &&
6771 (iocommand.Request.Type.Direction & XFER_READ)) {
6772 if (copy_to_user(iocommand.buf, kernel_buffer,
6773 iocommand.buf_size)) {
6774 rc = -EFAULT;
6775 }
6776 }
6777
6778out:
6779 kfree(kernel_buffer);
6780
6781 return rc;
6782}
6783
6f4e626f
NC		 6784static int pqi_ioctl(struct scsi_device *sdev, unsigned int cmd,
6785 void __user *arg)
6c223761
KB		 6786{
6787 int rc;
6788 struct pqi_ctrl_info *ctrl_info;
6789
6790 ctrl_info = shost_to_hba(sdev->host);
6791
6792 switch (cmd) {
6793 case CCISS_DEREGDISK:
6794 case CCISS_REGNEWDISK:
6795 case CCISS_REGNEWD:
6796 rc = pqi_scan_scsi_devices(ctrl_info);
6797 break;
6798 case CCISS_GETPCIINFO:
6799 rc = pqi_getpciinfo_ioctl(ctrl_info, arg);
6800 break;
6801 case CCISS_GETDRIVVER:
6802 rc = pqi_getdrivver_ioctl(arg);
6803 break;
6804 case CCISS_PASSTHRU:
6805 rc = pqi_passthru_ioctl(ctrl_info, arg);
6806 break;
6807 default:
6808 rc = -EINVAL;
6809 break;
6810 }
6811
6812 return rc;
6813}
6814
6d90615f 6815static ssize_t pqi_firmware_version_show(struct device *dev,
6c223761
KB		 6816 struct device_attribute *attr, char *buffer)
6817{
6c223761
KB		 6818 struct Scsi_Host *shost;
6819 struct pqi_ctrl_info *ctrl_info;
6820
6821 shost = class_to_shost(dev);
6822 ctrl_info = shost_to_hba(shost);
6823
a4256252 6824 return scnprintf(buffer, PAGE_SIZE, "%s\n", ctrl_info->firmware_version);
6d90615f
MB		 6825}
6826
6827static ssize_t pqi_driver_version_show(struct device *dev,
6828 struct device_attribute *attr, char *buffer)
6829{
a4256252 6830 return scnprintf(buffer, PAGE_SIZE, "%s\n", DRIVER_VERSION BUILD_TIMESTAMP);
6d90615f 6831}
6c223761 6832
6d90615f
MB		 6833static ssize_t pqi_serial_number_show(struct device *dev,
6834 struct device_attribute *attr, char *buffer)
6835{
6836 struct Scsi_Host *shost;
6837 struct pqi_ctrl_info *ctrl_info;
6838
6839 shost = class_to_shost(dev);
6840 ctrl_info = shost_to_hba(shost);
6841
a4256252 6842 return scnprintf(buffer, PAGE_SIZE, "%s\n", ctrl_info->serial_number);
6d90615f
MB		 6843}
6844
6845static ssize_t pqi_model_show(struct device *dev,
6846 struct device_attribute *attr, char *buffer)
6847{
6848 struct Scsi_Host *shost;
6849 struct pqi_ctrl_info *ctrl_info;
6850
6851 shost = class_to_shost(dev);
6852 ctrl_info = shost_to_hba(shost);
6853
a4256252 6854 return scnprintf(buffer, PAGE_SIZE, "%s\n", ctrl_info->model);
6d90615f
MB		 6855}
6856
6857static ssize_t pqi_vendor_show(struct device *dev,
6858 struct device_attribute *attr, char *buffer)
6859{
6860 struct Scsi_Host *shost;
6861 struct pqi_ctrl_info *ctrl_info;
6862
6863 shost = class_to_shost(dev);
6864 ctrl_info = shost_to_hba(shost);
6865
a4256252 6866 return scnprintf(buffer, PAGE_SIZE, "%s\n", ctrl_info->vendor);
6c223761
KB		 6867}
6868
6869static ssize_t pqi_host_rescan_store(struct device *dev,
6870 struct device_attribute *attr, const char *buffer, size_t count)
6871{
6872 struct Scsi_Host *shost = class_to_shost(dev);
6873
6874 pqi_scan_start(shost);
6875
6876 return count;
6877}
6878
3c50976f
KB		 6879static ssize_t pqi_lockup_action_show(struct device *dev,
6880 struct device_attribute *attr, char *buffer)
6881{
6882 int count = 0;
6883 unsigned int i;
6884
6885 for (i = 0; i < ARRAY_SIZE(pqi_lockup_actions); i++) {
6886 if (pqi_lockup_actions[i].action == pqi_lockup_action)
181aea89 6887 count += scnprintf(buffer + count, PAGE_SIZE - count,
3c50976f
KB		 6888 "[%s] ", pqi_lockup_actions[i].name);
6889 else
181aea89 6890 count += scnprintf(buffer + count, PAGE_SIZE - count,
3c50976f
KB		 6891 "%s ", pqi_lockup_actions[i].name);
6892 }
6893
181aea89 6894 count += scnprintf(buffer + count, PAGE_SIZE - count, "\n");
3c50976f
KB		 6895
6896 return count;
6897}
6898
6899static ssize_t pqi_lockup_action_store(struct device *dev,
6900 struct device_attribute *attr, const char *buffer, size_t count)
6901{
6902 unsigned int i;
6903 char *action_name;
6904 char action_name_buffer[32];
6905
6906 strlcpy(action_name_buffer, buffer, sizeof(action_name_buffer));
6907 action_name = strstrip(action_name_buffer);
6908
6909 for (i = 0; i < ARRAY_SIZE(pqi_lockup_actions); i++) {
6910 if (strcmp(action_name, pqi_lockup_actions[i].name) == 0) {
6911 pqi_lockup_action = pqi_lockup_actions[i].action;
6912 return count;
6913 }
6914 }
6915
6916 return -EINVAL;
6917}
6918
5be746d7
DB		 6919static ssize_t pqi_host_enable_stream_detection_show(struct device *dev,
6920 struct device_attribute *attr, char *buffer)
6921{
6922 struct Scsi_Host *shost = class_to_shost(dev);
6923 struct pqi_ctrl_info *ctrl_info = shost_to_hba(shost);
6924
6925 return scnprintf(buffer, 10, "%x\n",
6926 ctrl_info->enable_stream_detection);
6927}
6928
6929static ssize_t pqi_host_enable_stream_detection_store(struct device *dev,
6930 struct device_attribute *attr, const char *buffer, size_t count)
6931{
6932 struct Scsi_Host *shost = class_to_shost(dev);
6933 struct pqi_ctrl_info *ctrl_info = shost_to_hba(shost);
6934 u8 set_stream_detection = 0;
6935
6936 if (kstrtou8(buffer, 0, &set_stream_detection))
6937 return -EINVAL;
6938
6939 if (set_stream_detection > 0)
6940 set_stream_detection = 1;
6941
6942 ctrl_info->enable_stream_detection = set_stream_detection;
6943
6944 return count;
6945}
6946
6702d2c4
DB		 6947static ssize_t pqi_host_enable_r5_writes_show(struct device *dev,
6948 struct device_attribute *attr, char *buffer)
6949{
6950 struct Scsi_Host *shost = class_to_shost(dev);
6951 struct pqi_ctrl_info *ctrl_info = shost_to_hba(shost);
6952
6953 return scnprintf(buffer, 10, "%x\n", ctrl_info->enable_r5_writes);
6954}
6955
6956static ssize_t pqi_host_enable_r5_writes_store(struct device *dev,
6957 struct device_attribute *attr, const char *buffer, size_t count)
6958{
6959 struct Scsi_Host *shost = class_to_shost(dev);
6960 struct pqi_ctrl_info *ctrl_info = shost_to_hba(shost);
6961 u8 set_r5_writes = 0;
6962
6963 if (kstrtou8(buffer, 0, &set_r5_writes))
6964 return -EINVAL;
6965
6966 if (set_r5_writes > 0)
6967 set_r5_writes = 1;
6968
6969 ctrl_info->enable_r5_writes = set_r5_writes;
6970
6971 return count;
6972}
6973
6974static ssize_t pqi_host_enable_r6_writes_show(struct device *dev,
6975 struct device_attribute *attr, char *buffer)
6976{
6977 struct Scsi_Host *shost = class_to_shost(dev);
6978 struct pqi_ctrl_info *ctrl_info = shost_to_hba(shost);
6979
6980 return scnprintf(buffer, 10, "%x\n", ctrl_info->enable_r6_writes);
6981}
6982
6983static ssize_t pqi_host_enable_r6_writes_store(struct device *dev,
6984 struct device_attribute *attr, const char *buffer, size_t count)
6985{
6986 struct Scsi_Host *shost = class_to_shost(dev);
6987 struct pqi_ctrl_info *ctrl_info = shost_to_hba(shost);
6988 u8 set_r6_writes = 0;
6989
6990 if (kstrtou8(buffer, 0, &set_r6_writes))
6991 return -EINVAL;
6992
6993 if (set_r6_writes > 0)
6994 set_r6_writes = 1;
6995
6996 ctrl_info->enable_r6_writes = set_r6_writes;
6997
6998 return count;
6999}
7000
6d90615f
MB		 7001static DEVICE_ATTR(driver_version, 0444, pqi_driver_version_show, NULL);
7002static DEVICE_ATTR(firmware_version, 0444, pqi_firmware_version_show, NULL);
7003static DEVICE_ATTR(model, 0444, pqi_model_show, NULL);
7004static DEVICE_ATTR(serial_number, 0444, pqi_serial_number_show, NULL);
7005static DEVICE_ATTR(vendor, 0444, pqi_vendor_show, NULL);
cbe0c7b1 7006static DEVICE_ATTR(rescan, 0200, NULL, pqi_host_rescan_store);
583891c9
KB		 7007static DEVICE_ATTR(lockup_action, 0644, pqi_lockup_action_show,
7008 pqi_lockup_action_store);
5be746d7
DB		 7009static DEVICE_ATTR(enable_stream_detection, 0644,
7010 pqi_host_enable_stream_detection_show,
7011 pqi_host_enable_stream_detection_store);
6702d2c4
DB		 7012static DEVICE_ATTR(enable_r5_writes, 0644,
7013 pqi_host_enable_r5_writes_show, pqi_host_enable_r5_writes_store);
7014static DEVICE_ATTR(enable_r6_writes, 0644,
7015 pqi_host_enable_r6_writes_show, pqi_host_enable_r6_writes_store);
6c223761 7016
64fc9015
BVA		 7017static struct attribute *pqi_shost_attrs[] = {
7018 &dev_attr_driver_version.attr,
7019 &dev_attr_firmware_version.attr,
7020 &dev_attr_model.attr,
7021 &dev_attr_serial_number.attr,
7022 &dev_attr_vendor.attr,
7023 &dev_attr_rescan.attr,
7024 &dev_attr_lockup_action.attr,
7025 &dev_attr_enable_stream_detection.attr,
7026 &dev_attr_enable_r5_writes.attr,
7027 &dev_attr_enable_r6_writes.attr,
6c223761
KB		 7028 NULL
7029};
7030
64fc9015
BVA		 7031ATTRIBUTE_GROUPS(pqi_shost);
7032
cd128244
DC		 7033static ssize_t pqi_unique_id_show(struct device *dev,
7034 struct device_attribute *attr, char *buffer)
7035{
7036 struct pqi_ctrl_info *ctrl_info;
7037 struct scsi_device *sdev;
7038 struct pqi_scsi_dev *device;
7039 unsigned long flags;
5b083b30 7040 u8 unique_id[16];
cd128244
DC		 7041
7042 sdev = to_scsi_device(dev);
7043 ctrl_info = shost_to_hba(sdev->host);
7044
331f7e99
SB		 7045 if (pqi_ctrl_offline(ctrl_info))
7046 return -ENODEV;
7047
cd128244
DC		 7048 spin_lock_irqsave(&ctrl_info->scsi_device_list_lock, flags);
7049
7050 device = sdev->hostdata;
7051 if (!device) {
8b664fef 7052 spin_unlock_irqrestore(&ctrl_info->scsi_device_list_lock, flags);
cd128244
DC		 7053 return -ENODEV;
7054 }
5b083b30 7055
28ca6d87
MM		 7056 if (device->is_physical_device)
7057 memcpy(unique_id, device->wwid, sizeof(device->wwid));
7058 else
5b083b30 7059 memcpy(unique_id, device->volume_id, sizeof(device->volume_id));
cd128244
DC		 7060
7061 spin_unlock_irqrestore(&ctrl_info->scsi_device_list_lock, flags);
7062
a4256252 7063 return scnprintf(buffer, PAGE_SIZE,
583891c9
KB		 7064 "%02X%02X%02X%02X%02X%02X%02X%02X"
7065 "%02X%02X%02X%02X%02X%02X%02X%02X\n",
5b083b30
KB		 7066 unique_id[0], unique_id[1], unique_id[2], unique_id[3],
7067 unique_id[4], unique_id[5], unique_id[6], unique_id[7],
7068 unique_id[8], unique_id[9], unique_id[10], unique_id[11],
7069 unique_id[12], unique_id[13], unique_id[14], unique_id[15]);
cd128244
DC		 7070}
7071
7072static ssize_t pqi_lunid_show(struct device *dev,
7073 struct device_attribute *attr, char *buffer)
7074{
7075 struct pqi_ctrl_info *ctrl_info;
7076 struct scsi_device *sdev;
7077 struct pqi_scsi_dev *device;
7078 unsigned long flags;
7079 u8 lunid[8];
7080
7081 sdev = to_scsi_device(dev);
7082 ctrl_info = shost_to_hba(sdev->host);
7083
331f7e99
SB		 7084 if (pqi_ctrl_offline(ctrl_info))
7085 return -ENODEV;
7086
cd128244
DC		 7087 spin_lock_irqsave(&ctrl_info->scsi_device_list_lock, flags);
7088
7089 device = sdev->hostdata;
7090 if (!device) {
8b664fef 7091 spin_unlock_irqrestore(&ctrl_info->scsi_device_list_lock, flags);
cd128244
DC		 7092 return -ENODEV;
7093 }
694c5d5b 7094
cd128244
DC		 7095 memcpy(lunid, device->scsi3addr, sizeof(lunid));
7096
7097 spin_unlock_irqrestore(&ctrl_info->scsi_device_list_lock, flags);
7098
a4256252 7099 return scnprintf(buffer, PAGE_SIZE, "0x%8phN\n", lunid);
cd128244
DC		 7100}
7101
694c5d5b
KB		 7102#define MAX_PATHS 8
7103
cd128244
DC		 7104static ssize_t pqi_path_info_show(struct device *dev,
7105 struct device_attribute *attr, char *buf)
7106{
7107 struct pqi_ctrl_info *ctrl_info;
7108 struct scsi_device *sdev;
7109 struct pqi_scsi_dev *device;
7110 unsigned long flags;
7111 int i;
7112 int output_len = 0;
7113 u8 box;
7114 u8 bay;
694c5d5b 7115 u8 path_map_index;
cd128244 7116 char *active;
694c5d5b 7117 u8 phys_connector[2];
cd128244
DC		 7118
7119 sdev = to_scsi_device(dev);
7120 ctrl_info = shost_to_hba(sdev->host);
7121
331f7e99
SB		 7122 if (pqi_ctrl_offline(ctrl_info))
7123 return -ENODEV;
7124
cd128244
DC		 7125 spin_lock_irqsave(&ctrl_info->scsi_device_list_lock, flags);
7126
7127 device = sdev->hostdata;
7128 if (!device) {
8b664fef 7129 spin_unlock_irqrestore(&ctrl_info->scsi_device_list_lock, flags);
cd128244
DC		 7130 return -ENODEV;
7131 }
7132
7133 bay = device->bay;
7134 for (i = 0; i < MAX_PATHS; i++) {
694c5d5b 7135 path_map_index = 1 << i;
cd128244
DC		 7136 if (i == device->active_path_index)
7137 active = "Active";
7138 else if (device->path_map & path_map_index)
7139 active = "Inactive";
7140 else
7141 continue;
7142
7143 output_len += scnprintf(buf + output_len,
7144 PAGE_SIZE - output_len,
7145 "[%d:%d:%d:%d] %20.20s ",
7146 ctrl_info->scsi_host->host_no,
7147 device->bus, device->target,
7148 device->lun,
7149 scsi_device_type(device->devtype));
7150
7151 if (device->devtype == TYPE_RAID ||
7152 pqi_is_logical_device(device))
7153 goto end_buffer;
7154
7155 memcpy(&phys_connector, &device->phys_connector[i],
7156 sizeof(phys_connector));
7157 if (phys_connector[0] < '0')
7158 phys_connector[0] = '0';
7159 if (phys_connector[1] < '0')
7160 phys_connector[1] = '0';
7161
7162 output_len += scnprintf(buf + output_len,
7163 PAGE_SIZE - output_len,
7164 "PORT: %.2s ", phys_connector);
7165
7166 box = device->box[i];
7167 if (box != 0 && box != 0xFF)
7168 output_len += scnprintf(buf + output_len,
7169 PAGE_SIZE - output_len,
7170 "BOX: %hhu ", box);
7171
7172 if ((device->devtype == TYPE_DISK ||
7173 device->devtype == TYPE_ZBC) &&
7174 pqi_expose_device(device))
7175 output_len += scnprintf(buf + output_len,
7176 PAGE_SIZE - output_len,
7177 "BAY: %hhu ", bay);
7178
7179end_buffer:
7180 output_len += scnprintf(buf + output_len,
7181 PAGE_SIZE - output_len,
7182 "%s\n", active);
7183 }
7184
7185 spin_unlock_irqrestore(&ctrl_info->scsi_device_list_lock, flags);
694c5d5b 7186
cd128244
DC		 7187 return output_len;
7188}
7189
6c223761
KB		 7190static ssize_t pqi_sas_address_show(struct device *dev,
7191 struct device_attribute *attr, char *buffer)
7192{
7193 struct pqi_ctrl_info *ctrl_info;
7194 struct scsi_device *sdev;
7195 struct pqi_scsi_dev *device;
7196 unsigned long flags;
7197 u64 sas_address;
7198
7199 sdev = to_scsi_device(dev);
7200 ctrl_info = shost_to_hba(sdev->host);
7201
331f7e99
SB		 7202 if (pqi_ctrl_offline(ctrl_info))
7203 return -ENODEV;
7204
6c223761
KB		 7205 spin_lock_irqsave(&ctrl_info->scsi_device_list_lock, flags);
7206
7207 device = sdev->hostdata;
00598b05 7208 if (!device) {
8b664fef 7209 spin_unlock_irqrestore(&ctrl_info->scsi_device_list_lock, flags);
6c223761
KB		 7210 return -ENODEV;
7211 }
694c5d5b 7212
6c223761
KB		 7213 sas_address = device->sas_address;
7214
7215 spin_unlock_irqrestore(&ctrl_info->scsi_device_list_lock, flags);
7216
a4256252 7217 return scnprintf(buffer, PAGE_SIZE, "0x%016llx\n", sas_address);
6c223761
KB		 7218}
7219
7220static ssize_t pqi_ssd_smart_path_enabled_show(struct device *dev,
7221 struct device_attribute *attr, char *buffer)
7222{
7223 struct pqi_ctrl_info *ctrl_info;
7224 struct scsi_device *sdev;
7225 struct pqi_scsi_dev *device;
7226 unsigned long flags;
7227
7228 sdev = to_scsi_device(dev);
7229 ctrl_info = shost_to_hba(sdev->host);
7230
331f7e99
SB		 7231 if (pqi_ctrl_offline(ctrl_info))
7232 return -ENODEV;
7233
6c223761
KB		 7234 spin_lock_irqsave(&ctrl_info->scsi_device_list_lock, flags);
7235
7236 device = sdev->hostdata;
8b664fef
KB		 7237 if (!device) {
7238 spin_unlock_irqrestore(&ctrl_info->scsi_device_list_lock, flags);
7239 return -ENODEV;
7240 }
7241
588a63fe 7242 buffer[0] = device->raid_bypass_enabled ? '1' : '0';
6c223761
KB		 7243 buffer[1] = '\n';
7244 buffer[2] = '\0';
7245
7246 spin_unlock_irqrestore(&ctrl_info->scsi_device_list_lock, flags);
7247
7248 return 2;
7249}
7250
a9f93392
KB		 7251static ssize_t pqi_raid_level_show(struct device *dev,
7252 struct device_attribute *attr, char *buffer)
7253{
7254 struct pqi_ctrl_info *ctrl_info;
7255 struct scsi_device *sdev;
7256 struct pqi_scsi_dev *device;
7257 unsigned long flags;
7258 char *raid_level;
7259
7260 sdev = to_scsi_device(dev);
7261 ctrl_info = shost_to_hba(sdev->host);
7262
331f7e99
SB		 7263 if (pqi_ctrl_offline(ctrl_info))
7264 return -ENODEV;
7265
a9f93392
KB		 7266 spin_lock_irqsave(&ctrl_info->scsi_device_list_lock, flags);
7267
7268 device = sdev->hostdata;
8b664fef
KB		 7269 if (!device) {
7270 spin_unlock_irqrestore(&ctrl_info->scsi_device_list_lock, flags);
7271 return -ENODEV;
7272 }
a9f93392 7273
cbe42ac1 7274 if (pqi_is_logical_device(device) && device->devtype == TYPE_DISK)
a9f93392
KB		 7275 raid_level = pqi_raid_level_to_string(device->raid_level);
7276 else
7277 raid_level = "N/A";
7278
7279 spin_unlock_irqrestore(&ctrl_info->scsi_device_list_lock, flags);
7280
a4256252 7281 return scnprintf(buffer, PAGE_SIZE, "%s\n", raid_level);
a9f93392
KB		 7282}
7283
8b664fef
KB		 7284static ssize_t pqi_raid_bypass_cnt_show(struct device *dev,
7285 struct device_attribute *attr, char *buffer)
7286{
7287 struct pqi_ctrl_info *ctrl_info;
7288 struct scsi_device *sdev;
7289 struct pqi_scsi_dev *device;
7290 unsigned long flags;
7291 int raid_bypass_cnt;
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
8b664fef
KB		 7299 spin_lock_irqsave(&ctrl_info->scsi_device_list_lock, flags);
7300
7301 device = sdev->hostdata;
7302 if (!device) {
7303 spin_unlock_irqrestore(&ctrl_info->scsi_device_list_lock, flags);
7304 return -ENODEV;
7305 }
7306
7307 raid_bypass_cnt = atomic_read(&device->raid_bypass_cnt);
7308
7309 spin_unlock_irqrestore(&ctrl_info->scsi_device_list_lock, flags);
7310
a4256252 7311 return scnprintf(buffer, PAGE_SIZE, "0x%x\n", raid_bypass_cnt);
8b664fef
KB		 7312}
7313
2a47834d
GW		 7314static ssize_t pqi_sas_ncq_prio_enable_show(struct device *dev,
7315 struct device_attribute *attr, char *buf)
7316{
7317 struct pqi_ctrl_info *ctrl_info;
7318 struct scsi_device *sdev;
7319 struct pqi_scsi_dev *device;
7320 unsigned long flags;
7321 int output_len = 0;
7322
7323 sdev = to_scsi_device(dev);
7324 ctrl_info = shost_to_hba(sdev->host);
7325
331f7e99
SB		 7326 if (pqi_ctrl_offline(ctrl_info))
7327 return -ENODEV;
7328
2a47834d
GW		 7329 spin_lock_irqsave(&ctrl_info->scsi_device_list_lock, flags);
7330
7331 device = sdev->hostdata;
7332 if (!device) {
7333 spin_unlock_irqrestore(&ctrl_info->scsi_device_list_lock, flags);
7334 return -ENODEV;
7335 }
7336
7337 output_len = snprintf(buf, PAGE_SIZE, "%d\n",
7338 device->ncq_prio_enable);
7339 spin_unlock_irqrestore(&ctrl_info->scsi_device_list_lock, flags);
7340
7341 return output_len;
7342}
7343
7344static ssize_t pqi_sas_ncq_prio_enable_store(struct device *dev,
7345 struct device_attribute *attr,
7346 const char *buf, size_t count)
7347{
7348 struct pqi_ctrl_info *ctrl_info;
7349 struct scsi_device *sdev;
7350 struct pqi_scsi_dev *device;
7351 unsigned long flags;
7352 u8 ncq_prio_enable = 0;
7353
7354 if (kstrtou8(buf, 0, &ncq_prio_enable))
7355 return -EINVAL;
7356
7357 sdev = to_scsi_device(dev);
7358 ctrl_info = shost_to_hba(sdev->host);
7359
7360 spin_lock_irqsave(&ctrl_info->scsi_device_list_lock, flags);
7361
7362 device = sdev->hostdata;
7363
7364 if (!device) {
7365 spin_unlock_irqrestore(&ctrl_info->scsi_device_list_lock, flags);
7366 return -ENODEV;
7367 }
7368
7369 if (!device->ncq_prio_support ||
7370 !device->is_physical_device) {
7371 spin_unlock_irqrestore(&ctrl_info->scsi_device_list_lock, flags);
7372 return -EINVAL;
7373 }
7374
7375 device->ncq_prio_enable = ncq_prio_enable;
7376
7377 spin_unlock_irqrestore(&ctrl_info->scsi_device_list_lock, flags);
7378
7379 return strlen(buf);
7380}
7381
cd128244
DC		 7382static DEVICE_ATTR(lunid, 0444, pqi_lunid_show, NULL);
7383static DEVICE_ATTR(unique_id, 0444, pqi_unique_id_show, NULL);
7384static DEVICE_ATTR(path_info, 0444, pqi_path_info_show, NULL);
cbe0c7b1 7385static DEVICE_ATTR(sas_address, 0444, pqi_sas_address_show, NULL);
8b664fef 7386static DEVICE_ATTR(ssd_smart_path_enabled, 0444, pqi_ssd_smart_path_enabled_show, NULL);
a9f93392 7387static DEVICE_ATTR(raid_level, 0444, pqi_raid_level_show, NULL);
8b664fef 7388static DEVICE_ATTR(raid_bypass_cnt, 0444, pqi_raid_bypass_cnt_show, NULL);
2a47834d
GW		 7389static DEVICE_ATTR(sas_ncq_prio_enable, 0644,
7390 pqi_sas_ncq_prio_enable_show, pqi_sas_ncq_prio_enable_store);
6c223761 7391
64fc9015
BVA		 7392static struct attribute *pqi_sdev_attrs[] = {
7393 &dev_attr_lunid.attr,
7394 &dev_attr_unique_id.attr,
7395 &dev_attr_path_info.attr,
7396 &dev_attr_sas_address.attr,
7397 &dev_attr_ssd_smart_path_enabled.attr,
7398 &dev_attr_raid_level.attr,
7399 &dev_attr_raid_bypass_cnt.attr,
2a47834d 7400 &dev_attr_sas_ncq_prio_enable.attr,
6c223761
KB		 7401 NULL
7402};
7403
64fc9015
BVA		 7404ATTRIBUTE_GROUPS(pqi_sdev);
7405
6c223761
KB		 7406static struct scsi_host_template pqi_driver_template = {
7407 .module = THIS_MODULE,
7408 .name = DRIVER_NAME_SHORT,
7409 .proc_name = DRIVER_NAME_SHORT,
7410 .queuecommand = pqi_scsi_queue_command,
7411 .scan_start = pqi_scan_start,
7412 .scan_finished = pqi_scan_finished,
7413 .this_id = -1,
6c223761
KB		 7414 .eh_device_reset_handler = pqi_eh_device_reset_handler,
7415 .ioctl = pqi_ioctl,
7416 .slave_alloc = pqi_slave_alloc,
ce143793 7417 .slave_configure = pqi_slave_configure,
2d80f405 7418 .slave_destroy = pqi_slave_destroy,
52198226 7419 .map_queues = pqi_map_queues,
64fc9015
BVA		 7420 .sdev_groups = pqi_sdev_groups,
7421 .shost_groups = pqi_shost_groups,
c1ea387d 7422 .cmd_size = sizeof(struct pqi_cmd_priv),
6c223761
KB		 7423};
7424
7425static int pqi_register_scsi(struct pqi_ctrl_info *ctrl_info)
7426{
7427 int rc;
7428 struct Scsi_Host *shost;
7429
7430 shost = scsi_host_alloc(&pqi_driver_template, sizeof(ctrl_info));
7431 if (!shost) {
583891c9 7432 dev_err(&ctrl_info->pci_dev->dev, "scsi_host_alloc failed\n");
6c223761
KB		 7433 return -ENOMEM;
7434 }
7435
7436 shost->io_port = 0;
7437 shost->n_io_port = 0;
7438 shost->this_id = -1;
7439 shost->max_channel = PQI_MAX_BUS;
7440 shost->max_cmd_len = MAX_COMMAND_SIZE;
904f2bfd 7441 shost->max_lun = PQI_MAX_LUNS_PER_DEVICE;
6c223761
KB		 7442 shost->max_id = ~0;
7443 shost->max_sectors = ctrl_info->max_sectors;
7444 shost->can_queue = ctrl_info->scsi_ml_can_queue;
7445 shost->cmd_per_lun = shost->can_queue;
7446 shost->sg_tablesize = ctrl_info->sg_tablesize;
7447 shost->transportt = pqi_sas_transport_template;
52198226 7448 shost->irq = pci_irq_vector(ctrl_info->pci_dev, 0);
6c223761
KB		 7449 shost->unique_id = shost->irq;
7450 shost->nr_hw_queues = ctrl_info->num_queue_groups;
c6d3ee20 7451 shost->host_tagset = 1;
6c223761
KB		 7452 shost->hostdata[0] = (unsigned long)ctrl_info;
7453
7454 rc = scsi_add_host(shost, &ctrl_info->pci_dev->dev);
7455 if (rc) {
583891c9 7456 dev_err(&ctrl_info->pci_dev->dev, "scsi_add_host failed\n");
6c223761
KB		 7457 goto free_host;
7458 }
7459
7460 rc = pqi_add_sas_host(shost, ctrl_info);
7461 if (rc) {
583891c9 7462 dev_err(&ctrl_info->pci_dev->dev, "add SAS host failed\n");
6c223761
KB		 7463 goto remove_host;
7464 }
7465
7466 ctrl_info->scsi_host = shost;
7467
7468 return 0;
7469
7470remove_host:
7471 scsi_remove_host(shost);
7472free_host:
7473 scsi_host_put(shost);
7474
7475 return rc;
7476}
7477
7478static void pqi_unregister_scsi(struct pqi_ctrl_info *ctrl_info)
7479{
7480 struct Scsi_Host *shost;
7481
7482 pqi_delete_sas_host(ctrl_info);
7483
7484 shost = ctrl_info->scsi_host;
7485 if (!shost)
7486 return;
7487
7488 scsi_remove_host(shost);
7489 scsi_host_put(shost);
7490}
7491
336b6819
KB		 7492static int pqi_wait_for_pqi_reset_completion(struct pqi_ctrl_info *ctrl_info)
7493{
7494 int rc = 0;
7495 struct pqi_device_registers __iomem *pqi_registers;
7496 unsigned long timeout;
7497 unsigned int timeout_msecs;
7498 union pqi_reset_register reset_reg;
6c223761 7499
336b6819
KB		 7500 pqi_registers = ctrl_info->pqi_registers;
7501 timeout_msecs = readw(&pqi_registers->max_reset_timeout) * 100;
7502 timeout = msecs_to_jiffies(timeout_msecs) + jiffies;
7503
7504 while (1) {
7505 msleep(PQI_RESET_POLL_INTERVAL_MSECS);
7506 reset_reg.all_bits = readl(&pqi_registers->device_reset);
7507 if (reset_reg.bits.reset_action == PQI_RESET_ACTION_COMPLETED)
7508 break;
85b41834 7509 if (!sis_is_firmware_running(ctrl_info)) {
336b6819
KB		 7510 rc = -ENXIO;
7511 break;
7512 }
7513 if (time_after(jiffies, timeout)) {
7514 rc = -ETIMEDOUT;
7515 break;
7516 }
7517 }
7518
7519 return rc;
7520}
6c223761
KB		 7521
7522static int pqi_reset(struct pqi_ctrl_info *ctrl_info)
7523{
7524 int rc;
336b6819
KB		 7525 union pqi_reset_register reset_reg;
7526
7527 if (ctrl_info->pqi_reset_quiesce_supported) {
7528 rc = sis_pqi_reset_quiesce(ctrl_info);
7529 if (rc) {
7530 dev_err(&ctrl_info->pci_dev->dev,
583891c9 7531 "PQI reset failed during quiesce with error %d\n", rc);
336b6819
KB		 7532 return rc;
7533 }
7534 }
6c223761 7535
336b6819
KB		 7536 reset_reg.all_bits = 0;
7537 reset_reg.bits.reset_type = PQI_RESET_TYPE_HARD_RESET;
7538 reset_reg.bits.reset_action = PQI_RESET_ACTION_RESET;
6c223761 7539
336b6819 7540 writel(reset_reg.all_bits, &ctrl_info->pqi_registers->device_reset);
6c223761 7541
336b6819 7542 rc = pqi_wait_for_pqi_reset_completion(ctrl_info);
6c223761
KB		 7543 if (rc)
7544 dev_err(&ctrl_info->pci_dev->dev,
336b6819 7545 "PQI reset failed with error %d\n", rc);
6c223761
KB		 7546
7547 return rc;
7548}
7549
6d90615f
MB		 7550static int pqi_get_ctrl_serial_number(struct pqi_ctrl_info *ctrl_info)
7551{
7552 int rc;
7553 struct bmic_sense_subsystem_info *sense_info;
7554
7555 sense_info = kzalloc(sizeof(*sense_info), GFP_KERNEL);
7556 if (!sense_info)
7557 return -ENOMEM;
7558
7559 rc = pqi_sense_subsystem_info(ctrl_info, sense_info);
7560 if (rc)
7561 goto out;
7562
7563 memcpy(ctrl_info->serial_number, sense_info->ctrl_serial_number,
7564 sizeof(sense_info->ctrl_serial_number));
7565 ctrl_info->serial_number[sizeof(sense_info->ctrl_serial_number)] = '\0';
7566
7567out:
7568 kfree(sense_info);
7569
7570 return rc;
7571}
7572
7573static int pqi_get_ctrl_product_details(struct pqi_ctrl_info *ctrl_info)
6c223761
KB		 7574{
7575 int rc;
7576 struct bmic_identify_controller *identify;
7577
7578 identify = kmalloc(sizeof(*identify), GFP_KERNEL);
7579 if (!identify)
7580 return -ENOMEM;
7581
7582 rc = pqi_identify_controller(ctrl_info, identify);
7583 if (rc)
7584 goto out;
7585
598bef8d
KB		 7586 if (get_unaligned_le32(&identify->extra_controller_flags) &
7587 BMIC_IDENTIFY_EXTRA_FLAGS_LONG_FW_VERSION_SUPPORTED) {
7588 memcpy(ctrl_info->firmware_version,
7589 identify->firmware_version_long,
7590 sizeof(identify->firmware_version_long));
7591 } else {
7592 memcpy(ctrl_info->firmware_version,
7593 identify->firmware_version_short,
7594 sizeof(identify->firmware_version_short));
7595 ctrl_info->firmware_version
7596 [sizeof(identify->firmware_version_short)] = '\0';
7597 snprintf(ctrl_info->firmware_version +
7598 strlen(ctrl_info->firmware_version),
7599 sizeof(ctrl_info->firmware_version) -
7600 sizeof(identify->firmware_version_short),
7601 "-%u",
7602 get_unaligned_le16(&identify->firmware_build_number));
7603 }
6c223761 7604
6d90615f
MB		 7605 memcpy(ctrl_info->model, identify->product_id,
7606 sizeof(identify->product_id));
7607 ctrl_info->model[sizeof(identify->product_id)] = '\0';
7608
7609 memcpy(ctrl_info->vendor, identify->vendor_id,
7610 sizeof(identify->vendor_id));
7611 ctrl_info->vendor[sizeof(identify->vendor_id)] = '\0';
7612
1d393227
GW		 7613 dev_info(&ctrl_info->pci_dev->dev,
7614 "Firmware version: %s\n", ctrl_info->firmware_version);
7615
6c223761
KB		 7616out:
7617 kfree(identify);
7618
7619 return rc;
7620}
7621
b212c251
KB		 7622struct pqi_config_table_section_info {
7623 struct pqi_ctrl_info *ctrl_info;
7624 void *section;
7625 u32 section_offset;
7626 void __iomem *section_iomem_addr;
7627};
7628
7629static inline bool pqi_is_firmware_feature_supported(
7630 struct pqi_config_table_firmware_features *firmware_features,
7631 unsigned int bit_position)
98f87667 7632{
b212c251 7633 unsigned int byte_index;
98f87667 7634
b212c251 7635 byte_index = bit_position / BITS_PER_BYTE;
98f87667 7636
b212c251
KB		 7637 if (byte_index >= le16_to_cpu(firmware_features->num_elements))
7638 return false;
98f87667 7639
b212c251
KB		 7640 return firmware_features->features_supported[byte_index] &
7641 (1 << (bit_position % BITS_PER_BYTE)) ? true : false;
7642}
7643
7644static inline bool pqi_is_firmware_feature_enabled(
7645 struct pqi_config_table_firmware_features *firmware_features,
7646 void __iomem *firmware_features_iomem_addr,
7647 unsigned int bit_position)
7648{
7649 unsigned int byte_index;
7650 u8 __iomem *features_enabled_iomem_addr;
7651
7652 byte_index = (bit_position / BITS_PER_BYTE) +
7653 (le16_to_cpu(firmware_features->num_elements) * 2);
7654
7655 features_enabled_iomem_addr = firmware_features_iomem_addr +
7656 offsetof(struct pqi_config_table_firmware_features,
7657 features_supported) + byte_index;
7658
7659 return *((__force u8 *)features_enabled_iomem_addr) &
7660 (1 << (bit_position % BITS_PER_BYTE)) ? true : false;
7661}
7662
7663static inline void pqi_request_firmware_feature(
7664 struct pqi_config_table_firmware_features *firmware_features,
7665 unsigned int bit_position)
7666{
7667 unsigned int byte_index;
7668
7669 byte_index = (bit_position / BITS_PER_BYTE) +
7670 le16_to_cpu(firmware_features->num_elements);
7671
7672 firmware_features->features_supported[byte_index] |=
7673 (1 << (bit_position % BITS_PER_BYTE));
7674}
7675
7676static int pqi_config_table_update(struct pqi_ctrl_info *ctrl_info,
7677 u16 first_section, u16 last_section)
7678{
7679 struct pqi_vendor_general_request request;
7680
7681 memset(&request, 0, sizeof(request));
7682
7683 request.header.iu_type = PQI_REQUEST_IU_VENDOR_GENERAL;
7684 put_unaligned_le16(sizeof(request) - PQI_REQUEST_HEADER_LENGTH,
7685 &request.header.iu_length);
7686 put_unaligned_le16(PQI_VENDOR_GENERAL_CONFIG_TABLE_UPDATE,
7687 &request.function_code);
7688 put_unaligned_le16(first_section,
7689 &request.data.config_table_update.first_section);
7690 put_unaligned_le16(last_section,
7691 &request.data.config_table_update.last_section);
7692
ae0c189d 7693 return pqi_submit_raid_request_synchronous(ctrl_info, &request.header, 0, NULL);
b212c251
KB		 7694}
7695
7696static int pqi_enable_firmware_features(struct pqi_ctrl_info *ctrl_info,
7697 struct pqi_config_table_firmware_features *firmware_features,
7698 void __iomem *firmware_features_iomem_addr)
7699{
7700 void *features_requested;
7701 void __iomem *features_requested_iomem_addr;
f6cc2a77 7702 void __iomem *host_max_known_feature_iomem_addr;
b212c251
KB		 7703
7704 features_requested = firmware_features->features_supported +
7705 le16_to_cpu(firmware_features->num_elements);
7706
7707 features_requested_iomem_addr = firmware_features_iomem_addr +
7708 (features_requested - (void *)firmware_features);
7709
7710 memcpy_toio(features_requested_iomem_addr, features_requested,
7711 le16_to_cpu(firmware_features->num_elements));
7712
f6cc2a77
KB		 7713 if (pqi_is_firmware_feature_supported(firmware_features,
7714 PQI_FIRMWARE_FEATURE_MAX_KNOWN_FEATURE)) {
7715 host_max_known_feature_iomem_addr =
7716 features_requested_iomem_addr +
7717 (le16_to_cpu(firmware_features->num_elements) * 2) +
7718 sizeof(__le16);
7719 writew(PQI_FIRMWARE_FEATURE_MAXIMUM,
7720 host_max_known_feature_iomem_addr);
7721 }
7722
b212c251
KB		 7723 return pqi_config_table_update(ctrl_info,
7724 PQI_CONFIG_TABLE_SECTION_FIRMWARE_FEATURES,
7725 PQI_CONFIG_TABLE_SECTION_FIRMWARE_FEATURES);
7726}
7727
7728struct pqi_firmware_feature {
7729 char *feature_name;
7730 unsigned int feature_bit;
7731 bool supported;
7732 bool enabled;
7733 void (*feature_status)(struct pqi_ctrl_info *ctrl_info,
7734 struct pqi_firmware_feature *firmware_feature);
7735};
7736
7737static void pqi_firmware_feature_status(struct pqi_ctrl_info *ctrl_info,
7738 struct pqi_firmware_feature *firmware_feature)
7739{
7740 if (!firmware_feature->supported) {
7741 dev_info(&ctrl_info->pci_dev->dev, "%s not supported by controller\n",
7742 firmware_feature->feature_name);
7743 return;
7744 }
7745
7746 if (firmware_feature->enabled) {
7747 dev_info(&ctrl_info->pci_dev->dev,
7748 "%s enabled\n", firmware_feature->feature_name);
7749 return;
7750 }
7751
7752 dev_err(&ctrl_info->pci_dev->dev, "failed to enable %s\n",
7753 firmware_feature->feature_name);
7754}
7755
21432010 7756static void pqi_ctrl_update_feature_flags(struct pqi_ctrl_info *ctrl_info,
7757 struct pqi_firmware_feature *firmware_feature)
7758{
7759 switch (firmware_feature->feature_bit) {
f6cc2a77
KB		 7760 case PQI_FIRMWARE_FEATURE_RAID_1_WRITE_BYPASS:
7761 ctrl_info->enable_r1_writes = firmware_feature->enabled;
7762 break;
7763 case PQI_FIRMWARE_FEATURE_RAID_5_WRITE_BYPASS:
7764 ctrl_info->enable_r5_writes = firmware_feature->enabled;
7765 break;
7766 case PQI_FIRMWARE_FEATURE_RAID_6_WRITE_BYPASS:
7767 ctrl_info->enable_r6_writes = firmware_feature->enabled;
7768 break;
21432010 7769 case PQI_FIRMWARE_FEATURE_SOFT_RESET_HANDSHAKE:
7770 ctrl_info->soft_reset_handshake_supported =
4ccc354b
KB		 7771 firmware_feature->enabled &&
7772 pqi_read_soft_reset_status(ctrl_info);
21432010 7773 break;
7774 case PQI_FIRMWARE_FEATURE_RAID_IU_TIMEOUT:
583891c9 7775 ctrl_info->raid_iu_timeout_supported = firmware_feature->enabled;
21432010 7776 break;
c2922f17 7777 case PQI_FIRMWARE_FEATURE_TMF_IU_TIMEOUT:
583891c9 7778 ctrl_info->tmf_iu_timeout_supported = firmware_feature->enabled;
c2922f17 7779 break;
5d1f03e6
MB		 7780 case PQI_FIRMWARE_FEATURE_FW_TRIAGE:
7781 ctrl_info->firmware_triage_supported = firmware_feature->enabled;
9ee5d6e9 7782 pqi_save_fw_triage_setting(ctrl_info, firmware_feature->enabled);
5d1f03e6 7783 break;
28ca6d87
MM		 7784 case PQI_FIRMWARE_FEATURE_RPL_EXTENDED_FORMAT_4_5:
7785 ctrl_info->rpl_extended_format_4_5_supported = firmware_feature->enabled;
7786 break;
904f2bfd
KM		 7787 case PQI_FIRMWARE_FEATURE_MULTI_LUN_DEVICE_SUPPORT:
7788 ctrl_info->multi_lun_device_supported = firmware_feature->enabled;
7789 break;
21432010 7790 }
7791
7792 pqi_firmware_feature_status(ctrl_info, firmware_feature);
7793}
7794
b212c251
KB		 7795static inline void pqi_firmware_feature_update(struct pqi_ctrl_info *ctrl_info,
7796 struct pqi_firmware_feature *firmware_feature)
7797{
7798 if (firmware_feature->feature_status)
7799 firmware_feature->feature_status(ctrl_info, firmware_feature);
7800}
7801
7802static DEFINE_MUTEX(pqi_firmware_features_mutex);
7803
7804static struct pqi_firmware_feature pqi_firmware_features[] = {
7805 {
7806 .feature_name = "Online Firmware Activation",
7807 .feature_bit = PQI_FIRMWARE_FEATURE_OFA,
7808 .feature_status = pqi_firmware_feature_status,
7809 },
7810 {
7811 .feature_name = "Serial Management Protocol",
7812 .feature_bit = PQI_FIRMWARE_FEATURE_SMP,
7813 .feature_status = pqi_firmware_feature_status,
7814 },
f6cc2a77
KB		 7815 {
7816 .feature_name = "Maximum Known Feature",
7817 .feature_bit = PQI_FIRMWARE_FEATURE_MAX_KNOWN_FEATURE,
7818 .feature_status = pqi_firmware_feature_status,
7819 },
7820 {
7821 .feature_name = "RAID 0 Read Bypass",
7822 .feature_bit = PQI_FIRMWARE_FEATURE_RAID_0_READ_BYPASS,
b212c251
KB		 7823 .feature_status = pqi_firmware_feature_status,
7824 },
7825 {
f6cc2a77
KB		 7826 .feature_name = "RAID 1 Read Bypass",
7827 .feature_bit = PQI_FIRMWARE_FEATURE_RAID_1_READ_BYPASS,
7828 .feature_status = pqi_firmware_feature_status,
7829 },
7830 {
7831 .feature_name = "RAID 5 Read Bypass",
7832 .feature_bit = PQI_FIRMWARE_FEATURE_RAID_5_READ_BYPASS,
b212c251
KB		 7833 .feature_status = pqi_firmware_feature_status,
7834 },
f6cc2a77
KB		 7835 {
7836 .feature_name = "RAID 6 Read Bypass",
7837 .feature_bit = PQI_FIRMWARE_FEATURE_RAID_6_READ_BYPASS,
7838 .feature_status = pqi_firmware_feature_status,
7839 },
7840 {
7841 .feature_name = "RAID 0 Write Bypass",
7842 .feature_bit = PQI_FIRMWARE_FEATURE_RAID_0_WRITE_BYPASS,
7843 .feature_status = pqi_firmware_feature_status,
7844 },
7845 {
7846 .feature_name = "RAID 1 Write Bypass",
7847 .feature_bit = PQI_FIRMWARE_FEATURE_RAID_1_WRITE_BYPASS,
7848 .feature_status = pqi_ctrl_update_feature_flags,
7849 },
7850 {
7851 .feature_name = "RAID 5 Write Bypass",
7852 .feature_bit = PQI_FIRMWARE_FEATURE_RAID_5_WRITE_BYPASS,
7853 .feature_status = pqi_ctrl_update_feature_flags,
7854 },
7855 {
7856 .feature_name = "RAID 6 Write Bypass",
7857 .feature_bit = PQI_FIRMWARE_FEATURE_RAID_6_WRITE_BYPASS,
7858 .feature_status = pqi_ctrl_update_feature_flags,
7859 },
4fd22c13
MR		 7860 {
7861 .feature_name = "New Soft Reset Handshake",
7862 .feature_bit = PQI_FIRMWARE_FEATURE_SOFT_RESET_HANDSHAKE,
21432010 7863 .feature_status = pqi_ctrl_update_feature_flags,
7864 },
7865 {
7866 .feature_name = "RAID IU Timeout",
7867 .feature_bit = PQI_FIRMWARE_FEATURE_RAID_IU_TIMEOUT,
7868 .feature_status = pqi_ctrl_update_feature_flags,
4fd22c13 7869 },
c2922f17
MB		 7870 {
7871 .feature_name = "TMF IU Timeout",
7872 .feature_bit = PQI_FIRMWARE_FEATURE_TMF_IU_TIMEOUT,
7873 .feature_status = pqi_ctrl_update_feature_flags,
7874 },
f6cc2a77
KB		 7875 {
7876 .feature_name = "RAID Bypass on encrypted logical volumes on NVMe",
7877 .feature_bit = PQI_FIRMWARE_FEATURE_RAID_BYPASS_ON_ENCRYPTED_NVME,
7878 .feature_status = pqi_firmware_feature_status,
7879 },
5d1f03e6
MB		 7880 {
7881 .feature_name = "Firmware Triage",
7882 .feature_bit = PQI_FIRMWARE_FEATURE_FW_TRIAGE,
7883 .feature_status = pqi_ctrl_update_feature_flags,
7884 },
28ca6d87
MM		 7885 {
7886 .feature_name = "RPL Extended Formats 4 and 5",
7887 .feature_bit = PQI_FIRMWARE_FEATURE_RPL_EXTENDED_FORMAT_4_5,
7888 .feature_status = pqi_ctrl_update_feature_flags,
7889 },
904f2bfd
KM		 7890 {
7891 .feature_name = "Multi-LUN Target",
7892 .feature_bit = PQI_FIRMWARE_FEATURE_MULTI_LUN_DEVICE_SUPPORT,
7893 .feature_status = pqi_ctrl_update_feature_flags,
7894 },
b212c251
KB		 7895};
7896
7897static void pqi_process_firmware_features(
7898 struct pqi_config_table_section_info *section_info)
7899{
7900 int rc;
7901 struct pqi_ctrl_info *ctrl_info;
7902 struct pqi_config_table_firmware_features *firmware_features;
7903 void __iomem *firmware_features_iomem_addr;
7904 unsigned int i;
7905 unsigned int num_features_supported;
7906
7907 ctrl_info = section_info->ctrl_info;
7908 firmware_features = section_info->section;
7909 firmware_features_iomem_addr = section_info->section_iomem_addr;
7910
7911 for (i = 0, num_features_supported = 0;
7912 i < ARRAY_SIZE(pqi_firmware_features); i++) {
7913 if (pqi_is_firmware_feature_supported(firmware_features,
7914 pqi_firmware_features[i].feature_bit)) {
7915 pqi_firmware_features[i].supported = true;
7916 num_features_supported++;
7917 } else {
7918 pqi_firmware_feature_update(ctrl_info,
7919 &pqi_firmware_features[i]);
7920 }
7921 }
7922
7923 if (num_features_supported == 0)
7924 return;
7925
7926 for (i = 0; i < ARRAY_SIZE(pqi_firmware_features); i++) {
7927 if (!pqi_firmware_features[i].supported)
7928 continue;
7929 pqi_request_firmware_feature(firmware_features,
7930 pqi_firmware_features[i].feature_bit);
7931 }
7932
7933 rc = pqi_enable_firmware_features(ctrl_info, firmware_features,
7934 firmware_features_iomem_addr);
7935 if (rc) {
7936 dev_err(&ctrl_info->pci_dev->dev,
7937 "failed to enable firmware features in PQI configuration table\n");
7938 for (i = 0; i < ARRAY_SIZE(pqi_firmware_features); i++) {
7939 if (!pqi_firmware_features[i].supported)
7940 continue;
7941 pqi_firmware_feature_update(ctrl_info,
7942 &pqi_firmware_features[i]);
7943 }
7944 return;
7945 }
7946
7947 for (i = 0; i < ARRAY_SIZE(pqi_firmware_features); i++) {
7948 if (!pqi_firmware_features[i].supported)
7949 continue;
7950 if (pqi_is_firmware_feature_enabled(firmware_features,
7951 firmware_features_iomem_addr,
4fd22c13 7952 pqi_firmware_features[i].feature_bit)) {
583891c9 7953 pqi_firmware_features[i].enabled = true;
4fd22c13 7954 }
b212c251
KB		 7955 pqi_firmware_feature_update(ctrl_info,
7956 &pqi_firmware_features[i]);
7957 }
7958}
7959
7960static void pqi_init_firmware_features(void)
7961{
7962 unsigned int i;
7963
7964 for (i = 0; i < ARRAY_SIZE(pqi_firmware_features); i++) {
7965 pqi_firmware_features[i].supported = false;
7966 pqi_firmware_features[i].enabled = false;
7967 }
7968}
7969
7970static void pqi_process_firmware_features_section(
7971 struct pqi_config_table_section_info *section_info)
7972{
7973 mutex_lock(&pqi_firmware_features_mutex);
7974 pqi_init_firmware_features();
7975 pqi_process_firmware_features(section_info);
7976 mutex_unlock(&pqi_firmware_features_mutex);
7977}
7978
f6cc2a77
KB		 7979/*
7980 * Reset all controller settings that can be initialized during the processing
7981 * of the PQI Configuration Table.
7982 */
7983
4ccc354b
KB		 7984static void pqi_ctrl_reset_config(struct pqi_ctrl_info *ctrl_info)
7985{
7986 ctrl_info->heartbeat_counter = NULL;
7987 ctrl_info->soft_reset_status = NULL;
7988 ctrl_info->soft_reset_handshake_supported = false;
7989 ctrl_info->enable_r1_writes = false;
7990 ctrl_info->enable_r5_writes = false;
7991 ctrl_info->enable_r6_writes = false;
7992 ctrl_info->raid_iu_timeout_supported = false;
7993 ctrl_info->tmf_iu_timeout_supported = false;
5d1f03e6 7994 ctrl_info->firmware_triage_supported = false;
28ca6d87 7995 ctrl_info->rpl_extended_format_4_5_supported = false;
904f2bfd 7996 ctrl_info->multi_lun_device_supported = false;
4ccc354b
KB		 7997}
7998
98f87667
KB		 7999static int pqi_process_config_table(struct pqi_ctrl_info *ctrl_info)
8000{
8001 u32 table_length;
8002 u32 section_offset;
f6cc2a77 8003 bool firmware_feature_section_present;
98f87667
KB		 8004 void __iomem *table_iomem_addr;
8005 struct pqi_config_table *config_table;
8006 struct pqi_config_table_section_header *section;
b212c251 8007 struct pqi_config_table_section_info section_info;
921800a1 8008 struct pqi_config_table_section_info feature_section_info = {0};
98f87667
KB		 8009
8010 table_length = ctrl_info->config_table_length;
b212c251
KB		 8011 if (table_length == 0)
8012 return 0;
98f87667
KB		 8013
8014 config_table = kmalloc(table_length, GFP_KERNEL);
8015 if (!config_table) {
8016 dev_err(&ctrl_info->pci_dev->dev,
d87d5474 8017 "failed to allocate memory for PQI configuration table\n");
98f87667
KB		 8018 return -ENOMEM;
8019 }
8020
8021 /*
8022 * Copy the config table contents from I/O memory space into the
8023 * temporary buffer.
8024 */
583891c9 8025 table_iomem_addr = ctrl_info->iomem_base + ctrl_info->config_table_offset;
98f87667
KB		 8026 memcpy_fromio(config_table, table_iomem_addr, table_length);
8027
f6cc2a77 8028 firmware_feature_section_present = false;
b212c251 8029 section_info.ctrl_info = ctrl_info;
583891c9 8030 section_offset = get_unaligned_le32(&config_table->first_section_offset);
98f87667
KB		 8031
8032 while (section_offset) {
8033 section = (void *)config_table + section_offset;
8034
b212c251
KB		 8035 section_info.section = section;
8036 section_info.section_offset = section_offset;
583891c9 8037 section_info.section_iomem_addr = table_iomem_addr + section_offset;
b212c251 8038
98f87667 8039 switch (get_unaligned_le16(&section->section_id)) {
b212c251 8040 case PQI_CONFIG_TABLE_SECTION_FIRMWARE_FEATURES:
f6cc2a77
KB		 8041 firmware_feature_section_present = true;
8042 feature_section_info = section_info;
b212c251 8043 break;
98f87667 8044 case PQI_CONFIG_TABLE_SECTION_HEARTBEAT:
5a259e32
KB		 8045 if (pqi_disable_heartbeat)
8046 dev_warn(&ctrl_info->pci_dev->dev,
8047 "heartbeat disabled by module parameter\n");
8048 else
8049 ctrl_info->heartbeat_counter =
8050 table_iomem_addr +
8051 section_offset +
583891c9 8052 offsetof(struct pqi_config_table_heartbeat,
5a259e32 8053 heartbeat_counter);
98f87667 8054 break;
4fd22c13
MR		 8055 case PQI_CONFIG_TABLE_SECTION_SOFT_RESET:
8056 ctrl_info->soft_reset_status =
8057 table_iomem_addr +
8058 section_offset +
8059 offsetof(struct pqi_config_table_soft_reset,
583891c9 8060 soft_reset_status);
4fd22c13 8061 break;
98f87667
KB		 8062 }
8063
583891c9 8064 section_offset = get_unaligned_le16(&section->next_section_offset);
98f87667
KB		 8065 }
8066
f6cc2a77
KB		 8067 /*
8068 * We process the firmware feature section after all other sections
8069 * have been processed so that the feature bit callbacks can take
8070 * into account the settings configured by other sections.
8071 */
8072 if (firmware_feature_section_present)
8073 pqi_process_firmware_features_section(&feature_section_info);
8074
98f87667
KB		 8075 kfree(config_table);
8076
8077 return 0;
8078}
8079
162d7753
KB		 8080/* Switches the controller from PQI mode back into SIS mode. */
8081
8082static int pqi_revert_to_sis_mode(struct pqi_ctrl_info *ctrl_info)
8083{
8084 int rc;
8085
061ef06a 8086 pqi_change_irq_mode(ctrl_info, IRQ_MODE_NONE);
162d7753
KB		 8087 rc = pqi_reset(ctrl_info);
8088 if (rc)
8089 return rc;
4f078e24
KB		 8090 rc = sis_reenable_sis_mode(ctrl_info);
8091 if (rc) {
8092 dev_err(&ctrl_info->pci_dev->dev,
8093 "re-enabling SIS mode failed with error %d\n", rc);
8094 return rc;
8095 }
162d7753
KB		 8096 pqi_save_ctrl_mode(ctrl_info, SIS_MODE);
8097
8098 return 0;
8099}
8100
8101/*
8102 * If the controller isn't already in SIS mode, this function forces it into
8103 * SIS mode.
8104 */
8105
8106static int pqi_force_sis_mode(struct pqi_ctrl_info *ctrl_info)
ff6abb73
KB		 8107{
8108 if (!sis_is_firmware_running(ctrl_info))
8109 return -ENXIO;
8110
162d7753
KB		 8111 if (pqi_get_ctrl_mode(ctrl_info) == SIS_MODE)
8112 return 0;
8113
8114 if (sis_is_kernel_up(ctrl_info)) {
8115 pqi_save_ctrl_mode(ctrl_info, SIS_MODE);
8116 return 0;
ff6abb73
KB		 8117 }
8118
162d7753 8119 return pqi_revert_to_sis_mode(ctrl_info);
ff6abb73
KB		 8120}
8121
3ada501d
MR		 8122static void pqi_perform_lockup_action(void)
8123{
8124 switch (pqi_lockup_action) {
8125 case PANIC:
8126 panic("FATAL: Smart Family Controller lockup detected");
8127 break;
8128 case REBOOT:
8129 emergency_restart();
8130 break;
8131 case NONE:
8132 default:
8133 break;
8134 }
8135}
8136
6c223761
KB		 8137static int pqi_ctrl_init(struct pqi_ctrl_info *ctrl_info)
8138{
8139 int rc;
2708a256 8140 u32 product_id;
6c223761 8141
0530736e 8142 if (reset_devices) {
9ee5d6e9
MR		 8143 if (pqi_is_fw_triage_supported(ctrl_info)) {
8144 rc = sis_wait_for_fw_triage_completion(ctrl_info);
8145 if (rc)
8146 return rc;
8147 }
0530736e 8148 sis_soft_reset(ctrl_info);
42dc0426 8149 ssleep(PQI_POST_RESET_DELAY_SECS);
0530736e
KB		 8150 } else {
8151 rc = pqi_force_sis_mode(ctrl_info);
8152 if (rc)
8153 return rc;
8154 }
6c223761
KB		 8155
8156 /*
8157 * Wait until the controller is ready to start accepting SIS
8158 * commands.
8159 */
8160 rc = sis_wait_for_ctrl_ready(ctrl_info);
3ada501d
MR		 8161 if (rc) {
8162 if (reset_devices) {
8163 dev_err(&ctrl_info->pci_dev->dev,
8164 "kdump init failed with error %d\n", rc);
8165 pqi_lockup_action = REBOOT;
8166 pqi_perform_lockup_action();
8167 }
6c223761 8168 return rc;
3ada501d 8169 }
6c223761
KB		 8170
8171 /*
8172 * Get the controller properties. This allows us to determine
8173 * whether or not it supports PQI mode.
8174 */
8175 rc = sis_get_ctrl_properties(ctrl_info);
8176 if (rc) {
8177 dev_err(&ctrl_info->pci_dev->dev,
8178 "error obtaining controller properties\n");
8179 return rc;
8180 }
8181
8182 rc = sis_get_pqi_capabilities(ctrl_info);
8183 if (rc) {
8184 dev_err(&ctrl_info->pci_dev->dev,
8185 "error obtaining controller capabilities\n");
8186 return rc;
8187 }
8188
2708a256
KB		 8189 product_id = sis_get_product_id(ctrl_info);
8190 ctrl_info->product_id = (u8)product_id;
8191 ctrl_info->product_revision = (u8)(product_id >> 8);
8192
d727a776
KB		 8193 if (reset_devices) {
8194 if (ctrl_info->max_outstanding_requests >
8195 PQI_MAX_OUTSTANDING_REQUESTS_KDUMP)
583891c9 8196 ctrl_info->max_outstanding_requests =
d727a776
KB		 8197 PQI_MAX_OUTSTANDING_REQUESTS_KDUMP;
8198 } else {
8199 if (ctrl_info->max_outstanding_requests >
8200 PQI_MAX_OUTSTANDING_REQUESTS)
583891c9 8201 ctrl_info->max_outstanding_requests =
d727a776
KB		 8202 PQI_MAX_OUTSTANDING_REQUESTS;
8203 }
6c223761
KB		 8204
8205 pqi_calculate_io_resources(ctrl_info);
8206
8207 rc = pqi_alloc_error_buffer(ctrl_info);
8208 if (rc) {
8209 dev_err(&ctrl_info->pci_dev->dev,
8210 "failed to allocate PQI error buffer\n");
8211 return rc;
8212 }
8213
8214 /*
8215 * If the function we are about to call succeeds, the
8216 * controller will transition from legacy SIS mode
8217 * into PQI mode.
8218 */
8219 rc = sis_init_base_struct_addr(ctrl_info);
8220 if (rc) {
8221 dev_err(&ctrl_info->pci_dev->dev,
8222 "error initializing PQI mode\n");
8223 return rc;
8224 }
8225
8226 /* Wait for the controller to complete the SIS -> PQI transition. */
8227 rc = pqi_wait_for_pqi_mode_ready(ctrl_info);
8228 if (rc) {
8229 dev_err(&ctrl_info->pci_dev->dev,
8230 "transition to PQI mode failed\n");
8231 return rc;
8232 }
8233
8234 /* From here on, we are running in PQI mode. */
8235 ctrl_info->pqi_mode_enabled = true;
ff6abb73 8236 pqi_save_ctrl_mode(ctrl_info, PQI_MODE);
6c223761
KB		 8237
8238 rc = pqi_alloc_admin_queues(ctrl_info);
8239 if (rc) {
8240 dev_err(&ctrl_info->pci_dev->dev,
d87d5474 8241 "failed to allocate admin queues\n");
6c223761
KB		 8242 return rc;
8243 }
8244
8245 rc = pqi_create_admin_queues(ctrl_info);
8246 if (rc) {
8247 dev_err(&ctrl_info->pci_dev->dev,
8248 "error creating admin queues\n");
8249 return rc;
8250 }
8251
8252 rc = pqi_report_device_capability(ctrl_info);
8253 if (rc) {
8254 dev_err(&ctrl_info->pci_dev->dev,
8255 "obtaining device capability failed\n");
8256 return rc;
8257 }
8258
8259 rc = pqi_validate_device_capability(ctrl_info);
8260 if (rc)
8261 return rc;
8262
8263 pqi_calculate_queue_resources(ctrl_info);
8264
8265 rc = pqi_enable_msix_interrupts(ctrl_info);
8266 if (rc)
8267 return rc;
8268
8269 if (ctrl_info->num_msix_vectors_enabled < ctrl_info->num_queue_groups) {
8270 ctrl_info->max_msix_vectors =
8271 ctrl_info->num_msix_vectors_enabled;
8272 pqi_calculate_queue_resources(ctrl_info);
8273 }
8274
8275 rc = pqi_alloc_io_resources(ctrl_info);
8276 if (rc)
8277 return rc;
8278
8279 rc = pqi_alloc_operational_queues(ctrl_info);
d87d5474
KB		 8280 if (rc) {
8281 dev_err(&ctrl_info->pci_dev->dev,
8282 "failed to allocate operational queues\n");
6c223761 8283 return rc;
d87d5474 8284 }
6c223761
KB		 8285
8286 pqi_init_operational_queues(ctrl_info);
8287
0777a3fb 8288 rc = pqi_create_queues(ctrl_info);
6c223761
KB		 8289 if (rc)
8290 return rc;
8291
0777a3fb 8292 rc = pqi_request_irqs(ctrl_info);
6c223761
KB		 8293 if (rc)
8294 return rc;
8295
061ef06a
KB		 8296 pqi_change_irq_mode(ctrl_info, IRQ_MODE_MSIX);
8297
8298 ctrl_info->controller_online = true;
b212c251
KB		 8299
8300 rc = pqi_process_config_table(ctrl_info);
8301 if (rc)
8302 return rc;
8303
061ef06a 8304 pqi_start_heartbeat_timer(ctrl_info);
6c223761 8305
f6cc2a77
KB		 8306 if (ctrl_info->enable_r5_writes || ctrl_info->enable_r6_writes) {
8307 rc = pqi_get_advanced_raid_bypass_config(ctrl_info);
8308 if (rc) { /* Supported features not returned correctly. */
8309 dev_err(&ctrl_info->pci_dev->dev,
8310 "error obtaining advanced RAID bypass configuration\n");
8311 return rc;
8312 }
8313 ctrl_info->ciss_report_log_flags |=
8314 CISS_REPORT_LOG_FLAG_DRIVE_TYPE_MIX;
8315 }
8316
6a50d6ad 8317 rc = pqi_enable_events(ctrl_info);
6c223761
KB		 8318 if (rc) {
8319 dev_err(&ctrl_info->pci_dev->dev,
6a50d6ad 8320 "error enabling events\n");
6c223761
KB		 8321 return rc;
8322 }
8323
6c223761
KB		 8324 /* Register with the SCSI subsystem. */
8325 rc = pqi_register_scsi(ctrl_info);
8326 if (rc)
8327 return rc;
8328
6d90615f
MB		 8329 rc = pqi_get_ctrl_product_details(ctrl_info);
8330 if (rc) {
8331 dev_err(&ctrl_info->pci_dev->dev,
8332 "error obtaining product details\n");
8333 return rc;
8334 }
8335
8336 rc = pqi_get_ctrl_serial_number(ctrl_info);
6c223761
KB		 8337 if (rc) {
8338 dev_err(&ctrl_info->pci_dev->dev,
6d90615f 8339 "error obtaining ctrl serial number\n");
6c223761
KB		 8340 return rc;
8341 }
8342
171c2865
DC		 8343 rc = pqi_set_diag_rescan(ctrl_info);
8344 if (rc) {
8345 dev_err(&ctrl_info->pci_dev->dev,
8346 "error enabling multi-lun rescan\n");
8347 return rc;
8348 }
8349
6c223761
KB		 8350 rc = pqi_write_driver_version_to_host_wellness(ctrl_info);
8351 if (rc) {
8352 dev_err(&ctrl_info->pci_dev->dev,
8353 "error updating host wellness\n");
8354 return rc;
8355 }
8356
8357 pqi_schedule_update_time_worker(ctrl_info);
8358
8359 pqi_scan_scsi_devices(ctrl_info);
8360
8361 return 0;
8362}
8363
061ef06a
KB		 8364static void pqi_reinit_queues(struct pqi_ctrl_info *ctrl_info)
8365{
8366 unsigned int i;
8367 struct pqi_admin_queues *admin_queues;
8368 struct pqi_event_queue *event_queue;
8369
8370 admin_queues = &ctrl_info->admin_queues;
8371 admin_queues->iq_pi_copy = 0;
8372 admin_queues->oq_ci_copy = 0;
dac12fbc 8373 writel(0, admin_queues->oq_pi);
061ef06a
KB		 8374
8375 for (i = 0; i < ctrl_info->num_queue_groups; i++) {
8376 ctrl_info->queue_groups[i].iq_pi_copy[RAID_PATH] = 0;
8377 ctrl_info->queue_groups[i].iq_pi_copy[AIO_PATH] = 0;
8378 ctrl_info->queue_groups[i].oq_ci_copy = 0;
8379
dac12fbc
KB		 8380 writel(0, ctrl_info->queue_groups[i].iq_ci[RAID_PATH]);
8381 writel(0, ctrl_info->queue_groups[i].iq_ci[AIO_PATH]);
8382 writel(0, ctrl_info->queue_groups[i].oq_pi);
061ef06a
KB		 8383 }
8384
8385 event_queue = &ctrl_info->event_queue;
dac12fbc 8386 writel(0, event_queue->oq_pi);
061ef06a
KB		 8387 event_queue->oq_ci_copy = 0;
8388}
8389
8390static int pqi_ctrl_init_resume(struct pqi_ctrl_info *ctrl_info)
8391{
8392 int rc;
8393
8394 rc = pqi_force_sis_mode(ctrl_info);
8395 if (rc)
8396 return rc;
8397
8398 /*
8399 * Wait until the controller is ready to start accepting SIS
8400 * commands.
8401 */
8402 rc = sis_wait_for_ctrl_ready_resume(ctrl_info);
8403 if (rc)
8404 return rc;
8405
4fd22c13
MR		 8406 /*
8407 * Get the controller properties. This allows us to determine
8408 * whether or not it supports PQI mode.
8409 */
8410 rc = sis_get_ctrl_properties(ctrl_info);
8411 if (rc) {
8412 dev_err(&ctrl_info->pci_dev->dev,
8413 "error obtaining controller properties\n");
8414 return rc;
8415 }
8416
8417 rc = sis_get_pqi_capabilities(ctrl_info);
8418 if (rc) {
8419 dev_err(&ctrl_info->pci_dev->dev,
8420 "error obtaining controller capabilities\n");
8421 return rc;
8422 }
8423
061ef06a
KB		 8424 /*
8425 * If the function we are about to call succeeds, the
8426 * controller will transition from legacy SIS mode
8427 * into PQI mode.
8428 */
8429 rc = sis_init_base_struct_addr(ctrl_info);
8430 if (rc) {
8431 dev_err(&ctrl_info->pci_dev->dev,
8432 "error initializing PQI mode\n");
8433 return rc;
8434 }
8435
8436 /* Wait for the controller to complete the SIS -> PQI transition. */
8437 rc = pqi_wait_for_pqi_mode_ready(ctrl_info);
8438 if (rc) {
8439 dev_err(&ctrl_info->pci_dev->dev,
8440 "transition to PQI mode failed\n");
8441 return rc;
8442 }
8443
8444 /* From here on, we are running in PQI mode. */
8445 ctrl_info->pqi_mode_enabled = true;
8446 pqi_save_ctrl_mode(ctrl_info, PQI_MODE);
8447
8448 pqi_reinit_queues(ctrl_info);
8449
8450 rc = pqi_create_admin_queues(ctrl_info);
8451 if (rc) {
8452 dev_err(&ctrl_info->pci_dev->dev,
8453 "error creating admin queues\n");
8454 return rc;
8455 }
8456
8457 rc = pqi_create_queues(ctrl_info);
8458 if (rc)
8459 return rc;
8460
8461 pqi_change_irq_mode(ctrl_info, IRQ_MODE_MSIX);
8462
8463 ctrl_info->controller_online = true;
061ef06a
KB		 8464 pqi_ctrl_unblock_requests(ctrl_info);
8465
4ccc354b
KB		 8466 pqi_ctrl_reset_config(ctrl_info);
8467
4fd22c13
MR		 8468 rc = pqi_process_config_table(ctrl_info);
8469 if (rc)
8470 return rc;
8471
8472 pqi_start_heartbeat_timer(ctrl_info);
8473
f6cc2a77
KB		 8474 if (ctrl_info->enable_r5_writes || ctrl_info->enable_r6_writes) {
8475 rc = pqi_get_advanced_raid_bypass_config(ctrl_info);
8476 if (rc) {
8477 dev_err(&ctrl_info->pci_dev->dev,
8478 "error obtaining advanced RAID bypass configuration\n");
8479 return rc;
8480 }
8481 ctrl_info->ciss_report_log_flags |=
8482 CISS_REPORT_LOG_FLAG_DRIVE_TYPE_MIX;
8483 }
8484
061ef06a
KB		 8485 rc = pqi_enable_events(ctrl_info);
8486 if (rc) {
8487 dev_err(&ctrl_info->pci_dev->dev,
d87d5474 8488 "error enabling events\n");
061ef06a
KB		 8489 return rc;
8490 }
8491
6d90615f 8492 rc = pqi_get_ctrl_product_details(ctrl_info);
4fd22c13
MR		 8493 if (rc) {
8494 dev_err(&ctrl_info->pci_dev->dev,
694c5d5b 8495 "error obtaining product details\n");
4fd22c13
MR		 8496 return rc;
8497 }
8498
171c2865
DC		 8499 rc = pqi_set_diag_rescan(ctrl_info);
8500 if (rc) {
8501 dev_err(&ctrl_info->pci_dev->dev,
8502 "error enabling multi-lun rescan\n");
8503 return rc;
8504 }
8505
061ef06a
KB		 8506 rc = pqi_write_driver_version_to_host_wellness(ctrl_info);
8507 if (rc) {
8508 dev_err(&ctrl_info->pci_dev->dev,
8509 "error updating host wellness\n");
8510 return rc;
8511 }
8512
2790cd4d
KB		 8513 if (pqi_ofa_in_progress(ctrl_info))
8514 pqi_ctrl_unblock_scan(ctrl_info);
061ef06a
KB		 8515
8516 pqi_scan_scsi_devices(ctrl_info);
8517
8518 return 0;
8519}
8520
583891c9 8521static inline int pqi_set_pcie_completion_timeout(struct pci_dev *pci_dev, u16 timeout)
a81ed5f3 8522{
d20df83b
BOS		 8523 int rc;
8524
8525 rc = pcie_capability_clear_and_set_word(pci_dev, PCI_EXP_DEVCTL2,
a81ed5f3 8526 PCI_EXP_DEVCTL2_COMP_TIMEOUT, timeout);
d20df83b
BOS		 8527
8528 return pcibios_err_to_errno(rc);
a81ed5f3
KB		 8529}
8530
6c223761
KB		 8531static int pqi_pci_init(struct pqi_ctrl_info *ctrl_info)
8532{
8533 int rc;
8534 u64 mask;
8535
8536 rc = pci_enable_device(ctrl_info->pci_dev);
8537 if (rc) {
8538 dev_err(&ctrl_info->pci_dev->dev,
8539 "failed to enable PCI device\n");
8540 return rc;
8541 }
8542
8543 if (sizeof(dma_addr_t) > 4)
8544 mask = DMA_BIT_MASK(64);
8545 else
8546 mask = DMA_BIT_MASK(32);
8547
1d94f06e 8548 rc = dma_set_mask_and_coherent(&ctrl_info->pci_dev->dev, mask);
6c223761
KB		 8549 if (rc) {
8550 dev_err(&ctrl_info->pci_dev->dev, "failed to set DMA mask\n");
8551 goto disable_device;
8552 }
8553
8554 rc = pci_request_regions(ctrl_info->pci_dev, DRIVER_NAME_SHORT);
8555 if (rc) {
8556 dev_err(&ctrl_info->pci_dev->dev,
8557 "failed to obtain PCI resources\n");
8558 goto disable_device;
8559 }
8560
4bdc0d67 8561 ctrl_info->iomem_base = ioremap(pci_resource_start(
6c223761
KB		 8562 ctrl_info->pci_dev, 0),
8563 sizeof(struct pqi_ctrl_registers));
8564 if (!ctrl_info->iomem_base) {
8565 dev_err(&ctrl_info->pci_dev->dev,
8566 "failed to map memory for controller registers\n");
8567 rc = -ENOMEM;
8568 goto release_regions;
8569 }
8570
a81ed5f3
KB		 8571#define PCI_EXP_COMP_TIMEOUT_65_TO_210_MS 0x6
8572
8573 /* Increase the PCIe completion timeout. */
8574 rc = pqi_set_pcie_completion_timeout(ctrl_info->pci_dev,
8575 PCI_EXP_COMP_TIMEOUT_65_TO_210_MS);
8576 if (rc) {
8577 dev_err(&ctrl_info->pci_dev->dev,
8578 "failed to set PCIe completion timeout\n");
8579 goto release_regions;
8580 }
8581
6c223761
KB		 8582 /* Enable bus mastering. */
8583 pci_set_master(ctrl_info->pci_dev);
8584
cbe0c7b1
KB		 8585 ctrl_info->registers = ctrl_info->iomem_base;
8586 ctrl_info->pqi_registers = &ctrl_info->registers->pqi_registers;
8587
6c223761
KB		 8588 pci_set_drvdata(ctrl_info->pci_dev, ctrl_info);
8589
8590 return 0;
8591
8592release_regions:
8593 pci_release_regions(ctrl_info->pci_dev);
8594disable_device:
8595 pci_disable_device(ctrl_info->pci_dev);
8596
8597 return rc;
8598}
8599
8600static void pqi_cleanup_pci_init(struct pqi_ctrl_info *ctrl_info)
8601{
8602 iounmap(ctrl_info->iomem_base);
8603 pci_release_regions(ctrl_info->pci_dev);
cbe0c7b1
KB		 8604 if (pci_is_enabled(ctrl_info->pci_dev))
8605 pci_disable_device(ctrl_info->pci_dev);
6c223761
KB		 8606 pci_set_drvdata(ctrl_info->pci_dev, NULL);
8607}
8608
8609static struct pqi_ctrl_info *pqi_alloc_ctrl_info(int numa_node)
8610{
8611 struct pqi_ctrl_info *ctrl_info;
8612
8613 ctrl_info = kzalloc_node(sizeof(struct pqi_ctrl_info),
8614 GFP_KERNEL, numa_node);
8615 if (!ctrl_info)
8616 return NULL;
8617
8618 mutex_init(&ctrl_info->scan_mutex);
7561a7e4 8619 mutex_init(&ctrl_info->lun_reset_mutex);
4fd22c13 8620 mutex_init(&ctrl_info->ofa_mutex);
6c223761
KB		 8621
8622 INIT_LIST_HEAD(&ctrl_info->scsi_device_list);
8623 spin_lock_init(&ctrl_info->scsi_device_list_lock);
8624
8625 INIT_WORK(&ctrl_info->event_work, pqi_event_worker);
8626 atomic_set(&ctrl_info->num_interrupts, 0);
8627
8628 INIT_DELAYED_WORK(&ctrl_info->rescan_work, pqi_rescan_worker);
8629 INIT_DELAYED_WORK(&ctrl_info->update_time_work, pqi_update_time_worker);
8630
74a0f573 8631 timer_setup(&ctrl_info->heartbeat_timer, pqi_heartbeat_timer_handler, 0);
5f310425 8632 INIT_WORK(&ctrl_info->ctrl_offline_work, pqi_ctrl_offline_worker);
98f87667 8633
2790cd4d
KB		 8634 INIT_WORK(&ctrl_info->ofa_memory_alloc_work, pqi_ofa_memory_alloc_worker);
8635 INIT_WORK(&ctrl_info->ofa_quiesce_work, pqi_ofa_quiesce_worker);
8636
6c223761
KB		 8637 sema_init(&ctrl_info->sync_request_sem,
8638 PQI_RESERVED_IO_SLOTS_SYNCHRONOUS_REQUESTS);
7561a7e4 8639 init_waitqueue_head(&ctrl_info->block_requests_wait);
6c223761
KB		 8640
8641 ctrl_info->ctrl_id = atomic_inc_return(&pqi_controller_count) - 1;
061ef06a 8642 ctrl_info->irq_mode = IRQ_MODE_NONE;
6c223761
KB		 8643 ctrl_info->max_msix_vectors = PQI_MAX_MSIX_VECTORS;
8644
f6cc2a77
KB		 8645 ctrl_info->ciss_report_log_flags = CISS_REPORT_LOG_FLAG_UNIQUE_LUN_ID;
8646 ctrl_info->max_transfer_encrypted_sas_sata =
8647 PQI_DEFAULT_MAX_TRANSFER_ENCRYPTED_SAS_SATA;
8648 ctrl_info->max_transfer_encrypted_nvme =
8649 PQI_DEFAULT_MAX_TRANSFER_ENCRYPTED_NVME;
8650 ctrl_info->max_write_raid_5_6 = PQI_DEFAULT_MAX_WRITE_RAID_5_6;
8651 ctrl_info->max_write_raid_1_10_2drive = ~0;
8652 ctrl_info->max_write_raid_1_10_3drive = ~0;
cf15c3e7 8653 ctrl_info->disable_managed_interrupts = pqi_disable_managed_interrupts;
f6cc2a77 8654
6c223761
KB		 8655 return ctrl_info;
8656}
8657
8658static inline void pqi_free_ctrl_info(struct pqi_ctrl_info *ctrl_info)
8659{
8660 kfree(ctrl_info);
8661}
8662
8663static void pqi_free_interrupts(struct pqi_ctrl_info *ctrl_info)
8664{
98bf061b
KB		 8665 pqi_free_irqs(ctrl_info);
8666 pqi_disable_msix_interrupts(ctrl_info);
6c223761
KB		 8667}
8668
8669static void pqi_free_ctrl_resources(struct pqi_ctrl_info *ctrl_info)
8670{
6c223761
KB		 8671 pqi_free_interrupts(ctrl_info);
8672 if (ctrl_info->queue_memory_base)
8673 dma_free_coherent(&ctrl_info->pci_dev->dev,
8674 ctrl_info->queue_memory_length,
8675 ctrl_info->queue_memory_base,
8676 ctrl_info->queue_memory_base_dma_handle);
8677 if (ctrl_info->admin_queue_memory_base)
8678 dma_free_coherent(&ctrl_info->pci_dev->dev,
8679 ctrl_info->admin_queue_memory_length,
8680 ctrl_info->admin_queue_memory_base,
8681 ctrl_info->admin_queue_memory_base_dma_handle);
8682 pqi_free_all_io_requests(ctrl_info);
8683 if (ctrl_info->error_buffer)
8684 dma_free_coherent(&ctrl_info->pci_dev->dev,
8685 ctrl_info->error_buffer_length,
8686 ctrl_info->error_buffer,
8687 ctrl_info->error_buffer_dma_handle);
8688 if (ctrl_info->iomem_base)
8689 pqi_cleanup_pci_init(ctrl_info);
8690 pqi_free_ctrl_info(ctrl_info);
8691}
8692
8693static void pqi_remove_ctrl(struct pqi_ctrl_info *ctrl_info)
8694{
331f7e99
SB		 8695 ctrl_info->controller_online = false;
8696 pqi_stop_heartbeat_timer(ctrl_info);
8697 pqi_ctrl_block_requests(ctrl_info);
061ef06a
KB		 8698 pqi_cancel_rescan_worker(ctrl_info);
8699 pqi_cancel_update_time_worker(ctrl_info);
331f7e99
SB		 8700 if (ctrl_info->ctrl_removal_state == PQI_CTRL_SURPRISE_REMOVAL) {
8701 pqi_fail_all_outstanding_requests(ctrl_info);
8702 ctrl_info->pqi_mode_enabled = false;
8703 }
e57a1f9b 8704 pqi_unregister_scsi(ctrl_info);
162d7753
KB		 8705 if (ctrl_info->pqi_mode_enabled)
8706 pqi_revert_to_sis_mode(ctrl_info);
6c223761
KB		 8707 pqi_free_ctrl_resources(ctrl_info);
8708}
8709
4fd22c13
MR		 8710static void pqi_ofa_ctrl_quiesce(struct pqi_ctrl_info *ctrl_info)
8711{
2790cd4d
KB		 8712 pqi_ctrl_block_scan(ctrl_info);
8713 pqi_scsi_block_requests(ctrl_info);
8714 pqi_ctrl_block_device_reset(ctrl_info);
4fd22c13
MR		 8715 pqi_ctrl_block_requests(ctrl_info);
8716 pqi_ctrl_wait_until_quiesced(ctrl_info);
4fd22c13 8717 pqi_stop_heartbeat_timer(ctrl_info);
4fd22c13
MR		 8718}
8719
8720static void pqi_ofa_ctrl_unquiesce(struct pqi_ctrl_info *ctrl_info)
8721{
4fd22c13 8722 pqi_start_heartbeat_timer(ctrl_info);
2790cd4d
KB		 8723 pqi_ctrl_unblock_requests(ctrl_info);
8724 pqi_ctrl_unblock_device_reset(ctrl_info);
8725 pqi_scsi_unblock_requests(ctrl_info);
8726 pqi_ctrl_unblock_scan(ctrl_info);
4fd22c13
MR		 8727}
8728
2790cd4d 8729static int pqi_ofa_alloc_mem(struct pqi_ctrl_info *ctrl_info, u32 total_size, u32 chunk_size)
4fd22c13 8730{
4fd22c13 8731 int i;
2790cd4d 8732 u32 sg_count;
4fd22c13
MR		 8733 struct device *dev;
8734 struct pqi_ofa_memory *ofap;
2790cd4d
KB		 8735 struct pqi_sg_descriptor *mem_descriptor;
8736 dma_addr_t dma_handle;
4fd22c13
MR		 8737
8738 ofap = ctrl_info->pqi_ofa_mem_virt_addr;
8739
2790cd4d
KB		 8740 sg_count = DIV_ROUND_UP(total_size, chunk_size);
8741 if (sg_count == 0 || sg_count > PQI_OFA_MAX_SG_DESCRIPTORS)
4fd22c13
MR		 8742 goto out;
8743
2790cd4d 8744 ctrl_info->pqi_ofa_chunk_virt_addr = kmalloc_array(sg_count, sizeof(void *), GFP_KERNEL);
4fd22c13
MR		 8745 if (!ctrl_info->pqi_ofa_chunk_virt_addr)
8746 goto out;
8747
2790cd4d 8748 dev = &ctrl_info->pci_dev->dev;
4fd22c13 8749
2790cd4d 8750 for (i = 0; i < sg_count; i++) {
4fd22c13 8751 ctrl_info->pqi_ofa_chunk_virt_addr[i] =
2790cd4d 8752 dma_alloc_coherent(dev, chunk_size, &dma_handle, GFP_KERNEL);
4fd22c13 8753 if (!ctrl_info->pqi_ofa_chunk_virt_addr[i])
2790cd4d 8754 goto out_free_chunks;
4fd22c13 8755 mem_descriptor = &ofap->sg_descriptor[i];
583891c9
KB		 8756 put_unaligned_le64((u64)dma_handle, &mem_descriptor->address);
8757 put_unaligned_le32(chunk_size, &mem_descriptor->length);
4fd22c13
MR		 8758 }
8759
4fd22c13
MR		 8760 put_unaligned_le32(CISS_SG_LAST, &mem_descriptor->flags);
8761 put_unaligned_le16(sg_count, &ofap->num_memory_descriptors);
2790cd4d 8762 put_unaligned_le32(sg_count * chunk_size, &ofap->bytes_allocated);
4fd22c13
MR		 8763
8764 return 0;
8765
8766out_free_chunks:
8767 while (--i >= 0) {
8768 mem_descriptor = &ofap->sg_descriptor[i];
8769 dma_free_coherent(dev, chunk_size,
2790cd4d
KB		 8770 ctrl_info->pqi_ofa_chunk_virt_addr[i],
8771 get_unaligned_le64(&mem_descriptor->address));
4fd22c13
MR		 8772 }
8773 kfree(ctrl_info->pqi_ofa_chunk_virt_addr);
8774
8775out:
4fd22c13
MR		 8776 return -ENOMEM;
8777}
8778
8779static int pqi_ofa_alloc_host_buffer(struct pqi_ctrl_info *ctrl_info)
8780{
8781 u32 total_size;
2790cd4d 8782 u32 chunk_size;
4fd22c13 8783 u32 min_chunk_size;
4fd22c13 8784
2790cd4d
KB		 8785 if (ctrl_info->ofa_bytes_requested == 0)
8786 return 0;
4fd22c13 8787
2790cd4d
KB		 8788 total_size = PAGE_ALIGN(ctrl_info->ofa_bytes_requested);
8789 min_chunk_size = DIV_ROUND_UP(total_size, PQI_OFA_MAX_SG_DESCRIPTORS);
8790 min_chunk_size = PAGE_ALIGN(min_chunk_size);
4fd22c13 8791
2790cd4d
KB		 8792 for (chunk_size = total_size; chunk_size >= min_chunk_size;) {
8793 if (pqi_ofa_alloc_mem(ctrl_info, total_size, chunk_size) == 0)
4fd22c13 8794 return 0;
2790cd4d
KB		 8795 chunk_size /= 2;
8796 chunk_size = PAGE_ALIGN(chunk_size);
8797 }
4fd22c13
MR		 8798
8799 return -ENOMEM;
8800}
8801
2790cd4d 8802static void pqi_ofa_setup_host_buffer(struct pqi_ctrl_info *ctrl_info)
4fd22c13 8803{
4fd22c13 8804 struct device *dev;
2790cd4d 8805 struct pqi_ofa_memory *ofap;
4fd22c13
MR		 8806
8807 dev = &ctrl_info->pci_dev->dev;
4fd22c13 8808
2790cd4d
KB		 8809 ofap = dma_alloc_coherent(dev, sizeof(*ofap),
8810 &ctrl_info->pqi_ofa_mem_dma_handle, GFP_KERNEL);
8811 if (!ofap)
4fd22c13
MR		 8812 return;
8813
2790cd4d 8814 ctrl_info->pqi_ofa_mem_virt_addr = ofap;
4fd22c13
MR		 8815
8816 if (pqi_ofa_alloc_host_buffer(ctrl_info) < 0) {
2790cd4d
KB		 8817 dev_err(dev,
8818 "failed to allocate host buffer for Online Firmware Activation\n");
8819 dma_free_coherent(dev, sizeof(*ofap), ofap, ctrl_info->pqi_ofa_mem_dma_handle);
8820 ctrl_info->pqi_ofa_mem_virt_addr = NULL;
8821 return;
4fd22c13 8822 }
694c5d5b 8823
2790cd4d
KB		 8824 put_unaligned_le16(PQI_OFA_VERSION, &ofap->version);
8825 memcpy(&ofap->signature, PQI_OFA_SIGNATURE, sizeof(ofap->signature));
4fd22c13
MR		 8826}
8827
8828static void pqi_ofa_free_host_buffer(struct pqi_ctrl_info *ctrl_info)
8829{
2790cd4d
KB		 8830 unsigned int i;
8831 struct device *dev;
4fd22c13 8832 struct pqi_ofa_memory *ofap;
2790cd4d
KB		 8833 struct pqi_sg_descriptor *mem_descriptor;
8834 unsigned int num_memory_descriptors;
4fd22c13
MR		 8835
8836 ofap = ctrl_info->pqi_ofa_mem_virt_addr;
4fd22c13
MR		 8837 if (!ofap)
8838 return;
8839
2790cd4d
KB		 8840 dev = &ctrl_info->pci_dev->dev;
8841
8842 if (get_unaligned_le32(&ofap->bytes_allocated) == 0)
4fd22c13
MR		 8843 goto out;
8844
8845 mem_descriptor = ofap->sg_descriptor;
2790cd4d
KB		 8846 num_memory_descriptors =
8847 get_unaligned_le16(&ofap->num_memory_descriptors);
4fd22c13 8848
2790cd4d
KB		 8849 for (i = 0; i < num_memory_descriptors; i++) {
8850 dma_free_coherent(dev,
4fd22c13
MR		 8851 get_unaligned_le32(&mem_descriptor[i].length),
8852 ctrl_info->pqi_ofa_chunk_virt_addr[i],
8853 get_unaligned_le64(&mem_descriptor[i].address));
8854 }
8855 kfree(ctrl_info->pqi_ofa_chunk_virt_addr);
8856
8857out:
2790cd4d
KB		 8858 dma_free_coherent(dev, sizeof(*ofap), ofap,
8859 ctrl_info->pqi_ofa_mem_dma_handle);
4fd22c13
MR		 8860 ctrl_info->pqi_ofa_mem_virt_addr = NULL;
8861}
8862
8863static int pqi_ofa_host_memory_update(struct pqi_ctrl_info *ctrl_info)
8864{
2790cd4d 8865 u32 buffer_length;
4fd22c13 8866 struct pqi_vendor_general_request request;
4fd22c13
MR		 8867 struct pqi_ofa_memory *ofap;
8868
8869 memset(&request, 0, sizeof(request));
8870
4fd22c13
MR		 8871 request.header.iu_type = PQI_REQUEST_IU_VENDOR_GENERAL;
8872 put_unaligned_le16(sizeof(request) - PQI_REQUEST_HEADER_LENGTH,
8873 &request.header.iu_length);
8874 put_unaligned_le16(PQI_VENDOR_GENERAL_HOST_MEMORY_UPDATE,
8875 &request.function_code);
8876
2790cd4d
KB		 8877 ofap = ctrl_info->pqi_ofa_mem_virt_addr;
8878
4fd22c13 8879 if (ofap) {
2790cd4d 8880 buffer_length = offsetof(struct pqi_ofa_memory, sg_descriptor) +
4fd22c13
MR		 8881 get_unaligned_le16(&ofap->num_memory_descriptors) *
8882 sizeof(struct pqi_sg_descriptor);
8883
8884 put_unaligned_le64((u64)ctrl_info->pqi_ofa_mem_dma_handle,
8885 &request.data.ofa_memory_allocation.buffer_address);
2790cd4d 8886 put_unaligned_le32(buffer_length,
4fd22c13 8887 &request.data.ofa_memory_allocation.buffer_length);
4fd22c13
MR		 8888 }
8889
ae0c189d 8890 return pqi_submit_raid_request_synchronous(ctrl_info, &request.header, 0, NULL);
4fd22c13
MR		 8891}
8892
2790cd4d 8893static int pqi_ofa_ctrl_restart(struct pqi_ctrl_info *ctrl_info, unsigned int delay_secs)
4fd22c13 8894{
2790cd4d
KB		 8895 ssleep(delay_secs);
8896
4fd22c13
MR		 8897 return pqi_ctrl_init_resume(ctrl_info);
8898}
8899
5f310425
KB		 8900static struct pqi_raid_error_info pqi_ctrl_offline_raid_error_info = {
8901 .data_out_result = PQI_DATA_IN_OUT_HARDWARE_ERROR,
8902 .status = SAM_STAT_CHECK_CONDITION,
8903};
8904
8905static void pqi_fail_all_outstanding_requests(struct pqi_ctrl_info *ctrl_info)
376fb880
KB		 8906{
8907 unsigned int i;
376fb880 8908 struct pqi_io_request *io_request;
376fb880 8909 struct scsi_cmnd *scmd;
4f3cefc3 8910 struct scsi_device *sdev;
376fb880 8911
5f310425
KB		 8912 for (i = 0; i < ctrl_info->max_io_slots; i++) {
8913 io_request = &ctrl_info->io_request_pool[i];
8914 if (atomic_read(&io_request->refcount) == 0)
8915 continue;
376fb880 8916
5f310425
KB		 8917 scmd = io_request->scmd;
8918 if (scmd) {
4f3cefc3
MR		 8919 sdev = scmd->device;
8920 if (!sdev || !scsi_device_online(sdev)) {
8921 pqi_free_io_request(io_request);
8922 continue;
8923 } else {
8924 set_host_byte(scmd, DID_NO_CONNECT);
8925 }
5f310425
KB		 8926 } else {
8927 io_request->status = -ENXIO;
8928 io_request->error_info =
8929 &pqi_ctrl_offline_raid_error_info;
376fb880 8930 }
5f310425
KB		 8931
8932 io_request->io_complete_callback(io_request,
8933 io_request->context);
376fb880
KB		 8934 }
8935}
8936
5f310425 8937static void pqi_take_ctrl_offline_deferred(struct pqi_ctrl_info *ctrl_info)
376fb880 8938{
5f310425
KB		 8939 pqi_perform_lockup_action();
8940 pqi_stop_heartbeat_timer(ctrl_info);
8941 pqi_free_interrupts(ctrl_info);
8942 pqi_cancel_rescan_worker(ctrl_info);
8943 pqi_cancel_update_time_worker(ctrl_info);
8944 pqi_ctrl_wait_until_quiesced(ctrl_info);
8945 pqi_fail_all_outstanding_requests(ctrl_info);
5f310425
KB		 8946 pqi_ctrl_unblock_requests(ctrl_info);
8947}
8948
8949static void pqi_ctrl_offline_worker(struct work_struct *work)
8950{
8951 struct pqi_ctrl_info *ctrl_info;
8952
8953 ctrl_info = container_of(work, struct pqi_ctrl_info, ctrl_offline_work);
8954 pqi_take_ctrl_offline_deferred(ctrl_info);
376fb880
KB		 8955}
8956
5d1f03e6
MB		 8957static void pqi_take_ctrl_offline(struct pqi_ctrl_info *ctrl_info,
8958 enum pqi_ctrl_shutdown_reason ctrl_shutdown_reason)
376fb880 8959{
5f310425
KB		 8960 if (!ctrl_info->controller_online)
8961 return;
8962
376fb880 8963 ctrl_info->controller_online = false;
5f310425
KB		 8964 ctrl_info->pqi_mode_enabled = false;
8965 pqi_ctrl_block_requests(ctrl_info);
5a259e32 8966 if (!pqi_disable_ctrl_shutdown)
5d1f03e6 8967 sis_shutdown_ctrl(ctrl_info, ctrl_shutdown_reason);
376fb880
KB		 8968 pci_disable_device(ctrl_info->pci_dev);
8969 dev_err(&ctrl_info->pci_dev->dev, "controller offline\n");
5f310425 8970 schedule_work(&ctrl_info->ctrl_offline_work);
376fb880
KB		 8971}
8972
d91d7820 8973static void pqi_print_ctrl_info(struct pci_dev *pci_dev,
6c223761
KB		 8974 const struct pci_device_id *id)
8975{
8976 char *ctrl_description;
8977
37b36847 8978 if (id->driver_data)
6c223761 8979 ctrl_description = (char *)id->driver_data;
37b36847 8980 else
6aa26b5a 8981 ctrl_description = "Microchip Smart Family Controller";
6c223761 8982
d91d7820 8983 dev_info(&pci_dev->dev, "%s found\n", ctrl_description);
6c223761
KB		 8984}
8985
d91d7820
KB		 8986static int pqi_pci_probe(struct pci_dev *pci_dev,
8987 const struct pci_device_id *id)
6c223761
KB		 8988{
8989 int rc;
c52efc92 8990 int node;
6c223761
KB		 8991 struct pqi_ctrl_info *ctrl_info;
8992
d91d7820 8993 pqi_print_ctrl_info(pci_dev, id);
6c223761
KB		 8994
8995 if (pqi_disable_device_id_wildcards &&
8996 id->subvendor == PCI_ANY_ID &&
8997 id->subdevice == PCI_ANY_ID) {
d91d7820 8998 dev_warn(&pci_dev->dev,
6c223761
KB		 8999 "controller not probed because device ID wildcards are disabled\n");
9000 return -ENODEV;
9001 }
9002
9003 if (id->subvendor == PCI_ANY_ID || id->subdevice == PCI_ANY_ID)
d91d7820 9004 dev_warn(&pci_dev->dev,
6c223761
KB		 9005 "controller device ID matched using wildcards\n");
9006
d91d7820 9007 node = dev_to_node(&pci_dev->dev);
62dc51fb 9008 if (node == NUMA_NO_NODE) {
c52efc92
MM		 9009 node = cpu_to_node(0);
9010 if (node == NUMA_NO_NODE)
9011 node = 0;
9012 set_dev_node(&pci_dev->dev, node);
62dc51fb 9013 }
6c223761
KB		 9014
9015 ctrl_info = pqi_alloc_ctrl_info(node);
9016 if (!ctrl_info) {
d91d7820 9017 dev_err(&pci_dev->dev,
6c223761
KB		 9018 "failed to allocate controller info block\n");
9019 return -ENOMEM;
9020 }
9021
d91d7820 9022 ctrl_info->pci_dev = pci_dev;
6c223761
KB		 9023
9024 rc = pqi_pci_init(ctrl_info);
9025 if (rc)
9026 goto error;
9027
9028 rc = pqi_ctrl_init(ctrl_info);
9029 if (rc)
9030 goto error;
9031
9032 return 0;
9033
9034error:
9035 pqi_remove_ctrl(ctrl_info);
9036
9037 return rc;
9038}
9039
d91d7820 9040static void pqi_pci_remove(struct pci_dev *pci_dev)
6c223761
KB		 9041{
9042 struct pqi_ctrl_info *ctrl_info;
331f7e99 9043 u16 vendor_id;
14063fb6 9044 int rc;
6c223761 9045
d91d7820 9046 ctrl_info = pci_get_drvdata(pci_dev);
6c223761
KB		 9047 if (!ctrl_info)
9048 return;
9049
331f7e99
SB		 9050 pci_read_config_word(ctrl_info->pci_dev, PCI_SUBSYSTEM_VENDOR_ID, &vendor_id);
9051 if (vendor_id == 0xffff)
9052 ctrl_info->ctrl_removal_state = PQI_CTRL_SURPRISE_REMOVAL;
9053 else
9054 ctrl_info->ctrl_removal_state = PQI_CTRL_GRACEFUL_REMOVAL;
9055
14063fb6
GW		 9056 if (ctrl_info->ctrl_removal_state == PQI_CTRL_GRACEFUL_REMOVAL) {
9057 rc = pqi_flush_cache(ctrl_info, RESTART);
9058 if (rc)
9059 dev_err(&pci_dev->dev,
9060 "unable to flush controller cache during remove\n");
9061 }
9062
6c223761
KB		 9063 pqi_remove_ctrl(ctrl_info);
9064}
9065
0530736e
KB		 9066static void pqi_crash_if_pending_command(struct pqi_ctrl_info *ctrl_info)
9067{
9068 unsigned int i;
9069 struct pqi_io_request *io_request;
9070 struct scsi_cmnd *scmd;
9071
9072 for (i = 0; i < ctrl_info->max_io_slots; i++) {
9073 io_request = &ctrl_info->io_request_pool[i];
9074 if (atomic_read(&io_request->refcount) == 0)
9075 continue;
9076 scmd = io_request->scmd;
9077 WARN_ON(scmd != NULL); /* IO command from SML */
9078 WARN_ON(scmd == NULL); /* Non-IO cmd or driver initiated*/
9079 }
9080}
9081
d91d7820 9082static void pqi_shutdown(struct pci_dev *pci_dev)
6c223761
KB		 9083{
9084 int rc;
9085 struct pqi_ctrl_info *ctrl_info;
70ba20be 9086 enum bmic_flush_cache_shutdown_event shutdown_event;
6c223761 9087
d91d7820 9088 ctrl_info = pci_get_drvdata(pci_dev);
0530736e
KB		 9089 if (!ctrl_info) {
9090 dev_err(&pci_dev->dev,
9091 "cache could not be flushed\n");
9092 return;
9093 }
9094
0530736e 9095 pqi_wait_until_ofa_finished(ctrl_info);
0530736e 9096
9fa82023 9097 pqi_scsi_block_requests(ctrl_info);
0530736e 9098 pqi_ctrl_block_device_reset(ctrl_info);
9fa82023
KB		 9099 pqi_ctrl_block_requests(ctrl_info);
9100 pqi_ctrl_wait_until_quiesced(ctrl_info);
6c223761 9101
70ba20be
SB		 9102 if (system_state == SYSTEM_RESTART)
9103 shutdown_event = RESTART;
9104 else
9105 shutdown_event = SHUTDOWN;
9106
6c223761
KB		 9107 /*
9108 * Write all data in the controller's battery-backed cache to
9109 * storage.
9110 */
70ba20be 9111 rc = pqi_flush_cache(ctrl_info, shutdown_event);
0530736e
KB		 9112 if (rc)
9113 dev_err(&pci_dev->dev,
9114 "unable to flush controller cache\n");
9115
0530736e
KB		 9116 pqi_crash_if_pending_command(ctrl_info);
9117 pqi_reset(ctrl_info);
6c223761
KB		 9118}
9119
3c50976f
KB		 9120static void pqi_process_lockup_action_param(void)
9121{
9122 unsigned int i;
9123
9124 if (!pqi_lockup_action_param)
9125 return;
9126
9127 for (i = 0; i < ARRAY_SIZE(pqi_lockup_actions); i++) {
9128 if (strcmp(pqi_lockup_action_param,
9129 pqi_lockup_actions[i].name) == 0) {
9130 pqi_lockup_action = pqi_lockup_actions[i].action;
9131 return;
9132 }
9133 }
9134
9135 pr_warn("%s: invalid lockup action setting \"%s\" - supported settings: none, reboot, panic\n",
9136 DRIVER_NAME_SHORT, pqi_lockup_action_param);
9137}
9138
6d567dfe
KB		 9139#define PQI_CTRL_READY_TIMEOUT_PARAM_MIN_SECS 30
9140#define PQI_CTRL_READY_TIMEOUT_PARAM_MAX_SECS (30 * 60)
9141
9142static void pqi_process_ctrl_ready_timeout_param(void)
9143{
9144 if (pqi_ctrl_ready_timeout_secs == 0)
9145 return;
9146
9147 if (pqi_ctrl_ready_timeout_secs < PQI_CTRL_READY_TIMEOUT_PARAM_MIN_SECS) {
9148 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",
9149 DRIVER_NAME_SHORT, pqi_ctrl_ready_timeout_secs, PQI_CTRL_READY_TIMEOUT_PARAM_MIN_SECS, PQI_CTRL_READY_TIMEOUT_PARAM_MIN_SECS);
9150 pqi_ctrl_ready_timeout_secs = PQI_CTRL_READY_TIMEOUT_PARAM_MIN_SECS;
9151 } else if (pqi_ctrl_ready_timeout_secs > PQI_CTRL_READY_TIMEOUT_PARAM_MAX_SECS) {
9152 pr_warn("%s: ctrl_ready_timeout parm of %u seconds is greater than maximum timeout of %d seconds - setting timeout to %d seconds\n",
9153 DRIVER_NAME_SHORT, pqi_ctrl_ready_timeout_secs, PQI_CTRL_READY_TIMEOUT_PARAM_MAX_SECS, PQI_CTRL_READY_TIMEOUT_PARAM_MAX_SECS);
9154 pqi_ctrl_ready_timeout_secs = PQI_CTRL_READY_TIMEOUT_PARAM_MAX_SECS;
9155 }
9156
9157 sis_ctrl_ready_timeout_secs = pqi_ctrl_ready_timeout_secs;
9158}
9159
3c50976f
KB		 9160static void pqi_process_module_params(void)
9161{
9162 pqi_process_lockup_action_param();
6d567dfe 9163 pqi_process_ctrl_ready_timeout_param();
3c50976f
KB		 9164}
9165
31b17c3a
DB		 9166#if defined(CONFIG_PM)
9167
b73357a1
SB		 9168static inline enum bmic_flush_cache_shutdown_event pqi_get_flush_cache_shutdown_event(struct pci_dev *pci_dev)
9169{
9170 if (pci_dev->subsystem_vendor == PCI_VENDOR_ID_ADAPTEC2 && pci_dev->subsystem_device == 0x1304)
9171 return RESTART;
c66e078a 9172
b73357a1
SB		 9173 return SUSPEND;
9174}
9175
c66e078a 9176static int pqi_suspend_or_freeze(struct device *dev, bool suspend)
061ef06a 9177{
c66e078a 9178 struct pci_dev *pci_dev;
061ef06a
KB		 9179 struct pqi_ctrl_info *ctrl_info;
9180
c66e078a 9181 pci_dev = to_pci_dev(dev);
061ef06a
KB		 9182 ctrl_info = pci_get_drvdata(pci_dev);
9183
4fd22c13 9184 pqi_wait_until_ofa_finished(ctrl_info);
9fa82023
KB		 9185
9186 pqi_ctrl_block_scan(ctrl_info);
9187 pqi_scsi_block_requests(ctrl_info);
9188 pqi_ctrl_block_device_reset(ctrl_info);
061ef06a
KB		 9189 pqi_ctrl_block_requests(ctrl_info);
9190 pqi_ctrl_wait_until_quiesced(ctrl_info);
061ef06a 9191
c66e078a
KB		 9192 if (suspend) {
9193 enum bmic_flush_cache_shutdown_event shutdown_event;
9fa82023 9194
c66e078a
KB		 9195 shutdown_event = pqi_get_flush_cache_shutdown_event(pci_dev);
9196 pqi_flush_cache(ctrl_info, shutdown_event);
9197 }
061ef06a 9198
c66e078a
KB		 9199 pqi_stop_heartbeat_timer(ctrl_info);
9200 pqi_crash_if_pending_command(ctrl_info);
9201 pqi_free_irqs(ctrl_info);
061ef06a
KB		 9202
9203 ctrl_info->controller_online = false;
9204 ctrl_info->pqi_mode_enabled = false;
9205
9206 return 0;
9207}
9208
c66e078a
KB		 9209static __maybe_unused int pqi_suspend(struct device *dev)
9210{
9211 return pqi_suspend_or_freeze(dev, true);
9212}
9213
9214static int pqi_resume_or_restore(struct device *dev)
061ef06a
KB		 9215{
9216 int rc;
c66e078a 9217 struct pci_dev *pci_dev;
061ef06a
KB		 9218 struct pqi_ctrl_info *ctrl_info;
9219
c66e078a 9220 pci_dev = to_pci_dev(dev);
061ef06a
KB		 9221 ctrl_info = pci_get_drvdata(pci_dev);
9222
c66e078a
KB		 9223 rc = pqi_request_irqs(ctrl_info);
9224 if (rc)
9225 return rc;
061ef06a 9226
43e97ef4
KB		 9227 pqi_ctrl_unblock_device_reset(ctrl_info);
9228 pqi_ctrl_unblock_requests(ctrl_info);
9229 pqi_scsi_unblock_requests(ctrl_info);
9230 pqi_ctrl_unblock_scan(ctrl_info);
9231
c66e078a
KB		 9232 ssleep(PQI_POST_RESET_DELAY_SECS);
9233
061ef06a
KB		 9234 return pqi_ctrl_init_resume(ctrl_info);
9235}
9236
c66e078a
KB		 9237static int pqi_freeze(struct device *dev)
9238{
9239 return pqi_suspend_or_freeze(dev, false);
9240}
9241
9242static int pqi_thaw(struct device *dev)
9243{
9244 int rc;
9245 struct pci_dev *pci_dev;
9246 struct pqi_ctrl_info *ctrl_info;
9247
9248 pci_dev = to_pci_dev(dev);
9249 ctrl_info = pci_get_drvdata(pci_dev);
9250
9251 rc = pqi_request_irqs(ctrl_info);
9252 if (rc)
9253 return rc;
9254
9255 ctrl_info->controller_online = true;
9256 ctrl_info->pqi_mode_enabled = true;
9257
9258 pqi_ctrl_unblock_device_reset(ctrl_info);
9259 pqi_ctrl_unblock_requests(ctrl_info);
9260 pqi_scsi_unblock_requests(ctrl_info);
9261 pqi_ctrl_unblock_scan(ctrl_info);
9262
9263 return 0;
9264}
9265
9266static int pqi_poweroff(struct device *dev)
9267{
9268 struct pci_dev *pci_dev;
9269 struct pqi_ctrl_info *ctrl_info;
9270 enum bmic_flush_cache_shutdown_event shutdown_event;
9271
9272 pci_dev = to_pci_dev(dev);
9273 ctrl_info = pci_get_drvdata(pci_dev);
9274
9275 shutdown_event = pqi_get_flush_cache_shutdown_event(pci_dev);
9276 pqi_flush_cache(ctrl_info, shutdown_event);
9277
9278 return 0;
9279}
9280
9281static const struct dev_pm_ops pqi_pm_ops = {
9282 .suspend = pqi_suspend,
9283 .resume = pqi_resume_or_restore,
9284 .freeze = pqi_freeze,
9285 .thaw = pqi_thaw,
9286 .poweroff = pqi_poweroff,
9287 .restore = pqi_resume_or_restore,
9288};
9289
31b17c3a
DB		 9290#endif /* CONFIG_PM */
9291
6c223761
KB		 9292/* Define the PCI IDs for the controllers that we support. */
9293static const struct pci_device_id pqi_pci_id_table[] = {
b0f9408b
KB		 9294 {
9295 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
9296 0x105b, 0x1211)
9297 },
9298 {
9299 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
9300 0x105b, 0x1321)
9301 },
7eddabff
KB		 9302 {
9303 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
9304 0x152d, 0x8a22)
9305 },
9306 {
9307 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
9308 0x152d, 0x8a23)
9309 },
9310 {
9311 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
9312 0x152d, 0x8a24)
9313 },
9314 {
9315 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
9316 0x152d, 0x8a36)
9317 },
9318 {
9319 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
9320 0x152d, 0x8a37)
9321 },
0595a0b4
AK		 9322 {
9323 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
9324 0x193d, 0x1104)
9325 },
9326 {
9327 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
9328 0x193d, 0x1105)
9329 },
9330 {
9331 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
9332 0x193d, 0x1106)
9333 },
9334 {
9335 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
9336 0x193d, 0x1107)
9337 },
d3af3f64
MR		 9338 {
9339 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
9340 0x193d, 0x1108)
9341 },
9342 {
9343 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
9344 0x193d, 0x1109)
9345 },
0b93cf2a
MM		 9346 {
9347 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
9348 0x193d, 0x110b)
9349 },
b0f9408b
KB		 9350 {
9351 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
9352 0x193d, 0x8460)
9353 },
9354 {
9355 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
9356 0x193d, 0x8461)
9357 },
84a77fef
MB		 9358 {
9359 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
9360 0x193d, 0xc460)
9361 },
9362 {
9363 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
9364 0x193d, 0xc461)
9365 },
b0f9408b
KB		 9366 {
9367 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
9368 0x193d, 0xf460)
9369 },
9370 {
9371 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
9372 0x193d, 0xf461)
9373 },
9374 {
9375 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
9376 0x1bd4, 0x0045)
9377 },
9378 {
9379 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
9380 0x1bd4, 0x0046)
9381 },
9382 {
9383 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
9384 0x1bd4, 0x0047)
9385 },
9386 {
9387 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
9388 0x1bd4, 0x0048)
9389 },
9f8d05fa
KB		 9390 {
9391 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
9392 0x1bd4, 0x004a)
9393 },
9394 {
9395 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
9396 0x1bd4, 0x004b)
9397 },
9398 {
9399 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
9400 0x1bd4, 0x004c)
9401 },
63a7956a
GW		 9402 {
9403 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
9404 0x1bd4, 0x004f)
9405 },
75fbeacc
KB		 9406 {
9407 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
9408 0x1bd4, 0x0051)
9409 },
9410 {
9411 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
9412 0x1bd4, 0x0052)
9413 },
9414 {
9415 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
9416 0x1bd4, 0x0053)
9417 },
9418 {
9419 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
9420 0x1bd4, 0x0054)
9421 },
c57ee4cc
DB		 9422 {
9423 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
9424 0x1bd4, 0x006b)
9425 },
9426 {
9427 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
9428 0x1bd4, 0x006c)
9429 },
9430 {
9431 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
9432 0x1bd4, 0x006d)
9433 },
9434 {
9435 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
9436 0x1bd4, 0x006f)
9437 },
9438 {
9439 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
9440 0x1bd4, 0x0070)
9441 },
9442 {
9443 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
9444 0x1bd4, 0x0071)
9445 },
9446 {
9447 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
9448 0x1bd4, 0x0072)
9449 },
0b93cf2a
MM		 9450 {
9451 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
9452 0x1bd4, 0x0086)
9453 },
9454 {
9455 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
9456 0x1bd4, 0x0087)
9457 },
9458 {
9459 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
9460 0x1bd4, 0x0088)
9461 },
9462 {
9463 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
9464 0x1bd4, 0x0089)
9465 },
c1b10475
AK		 9466 {
9467 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
9468 0x19e5, 0xd227)
9469 },
9470 {
9471 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
9472 0x19e5, 0xd228)
9473 },
9474 {
9475 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
9476 0x19e5, 0xd229)
9477 },
9478 {
9479 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
9480 0x19e5, 0xd22a)
9481 },
9482 {
9483 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
9484 0x19e5, 0xd22b)
9485 },
9486 {
9487 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
9488 0x19e5, 0xd22c)
9489 },
6c223761
KB		 9490 {
9491 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
9492 PCI_VENDOR_ID_ADAPTEC2, 0x0110)
9493 },
9494 {
9495 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
55790064 9496 PCI_VENDOR_ID_ADAPTEC2, 0x0608)
6c223761 9497 },
44e68c4a
MM		 9498 {
9499 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
9500 PCI_VENDOR_ID_ADAPTEC2, 0x0659)
9501 },
6c223761
KB		 9502 {
9503 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
7eddabff 9504 PCI_VENDOR_ID_ADAPTEC2, 0x0800)
6c223761
KB		 9505 },
9506 {
9507 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
7eddabff 9508 PCI_VENDOR_ID_ADAPTEC2, 0x0801)
6c223761
KB		 9509 },
9510 {
9511 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
7eddabff 9512 PCI_VENDOR_ID_ADAPTEC2, 0x0802)
6c223761
KB		 9513 },
9514 {
9515 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
7eddabff 9516 PCI_VENDOR_ID_ADAPTEC2, 0x0803)
6c223761
KB		 9517 },
9518 {
9519 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
7eddabff 9520 PCI_VENDOR_ID_ADAPTEC2, 0x0804)
6c223761
KB		 9521 },
9522 {
9523 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
7eddabff 9524 PCI_VENDOR_ID_ADAPTEC2, 0x0805)
6c223761
KB		 9525 },
9526 {
9527 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
7eddabff 9528 PCI_VENDOR_ID_ADAPTEC2, 0x0806)
6c223761 9529 },
55790064
KB		 9530 {
9531 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
9532 PCI_VENDOR_ID_ADAPTEC2, 0x0807)
9533 },
63a7956a
GW		 9534 {
9535 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
9536 PCI_VENDOR_ID_ADAPTEC2, 0x0808)
9537 },
9538 {
9539 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
9540 PCI_VENDOR_ID_ADAPTEC2, 0x0809)
9541 },
3af06083
MR		 9542 {
9543 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
9544 PCI_VENDOR_ID_ADAPTEC2, 0x080a)
9545 },
6c223761
KB		 9546 {
9547 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
7eddabff 9548 PCI_VENDOR_ID_ADAPTEC2, 0x0900)
6c223761
KB		 9549 },
9550 {
9551 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
7eddabff 9552 PCI_VENDOR_ID_ADAPTEC2, 0x0901)
6c223761
KB		 9553 },
9554 {
9555 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
7eddabff 9556 PCI_VENDOR_ID_ADAPTEC2, 0x0902)
6c223761
KB		 9557 },
9558 {
9559 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
7eddabff 9560 PCI_VENDOR_ID_ADAPTEC2, 0x0903)
6c223761
KB		 9561 },
9562 {
9563 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
7eddabff 9564 PCI_VENDOR_ID_ADAPTEC2, 0x0904)
6c223761
KB		 9565 },
9566 {
9567 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
7eddabff 9568 PCI_VENDOR_ID_ADAPTEC2, 0x0905)
6c223761
KB		 9569 },
9570 {
9571 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
7eddabff 9572 PCI_VENDOR_ID_ADAPTEC2, 0x0906)
6c223761
KB		 9573 },
9574 {
9575 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
7eddabff 9576 PCI_VENDOR_ID_ADAPTEC2, 0x0907)
6c223761
KB		 9577 },
9578 {
9579 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
7eddabff 9580 PCI_VENDOR_ID_ADAPTEC2, 0x0908)
6c223761 9581 },
55790064
KB		 9582 {
9583 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
9584 PCI_VENDOR_ID_ADAPTEC2, 0x090a)
9585 },
6c223761
KB		 9586 {
9587 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
7eddabff 9588 PCI_VENDOR_ID_ADAPTEC2, 0x1200)
6c223761
KB		 9589 },
9590 {
9591 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
7eddabff 9592 PCI_VENDOR_ID_ADAPTEC2, 0x1201)
6c223761
KB		 9593 },
9594 {
9595 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
7eddabff 9596 PCI_VENDOR_ID_ADAPTEC2, 0x1202)
6c223761
KB		 9597 },
9598 {
9599 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
7eddabff 9600 PCI_VENDOR_ID_ADAPTEC2, 0x1280)
6c223761
KB		 9601 },
9602 {
9603 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
7eddabff 9604 PCI_VENDOR_ID_ADAPTEC2, 0x1281)
6c223761 9605 },
b0f9408b
KB		 9606 {
9607 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
9608 PCI_VENDOR_ID_ADAPTEC2, 0x1282)
9609 },
6c223761
KB		 9610 {
9611 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
7eddabff 9612 PCI_VENDOR_ID_ADAPTEC2, 0x1300)
6c223761
KB		 9613 },
9614 {
9615 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
7eddabff 9616 PCI_VENDOR_ID_ADAPTEC2, 0x1301)
6c223761 9617 },
bd809e8d
KB		 9618 {
9619 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
9620 PCI_VENDOR_ID_ADAPTEC2, 0x1302)
9621 },
9622 {
9623 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
9624 PCI_VENDOR_ID_ADAPTEC2, 0x1303)
9625 },
c57ee4cc
DB		 9626 {
9627 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
9628 PCI_VENDOR_ID_ADAPTEC2, 0x1304)
9629 },
6c223761
KB		 9630 {
9631 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
7eddabff
KB		 9632 PCI_VENDOR_ID_ADAPTEC2, 0x1380)
9633 },
75fbeacc
KB		 9634 {
9635 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
9636 PCI_VENDOR_ID_ADAPTEC2, 0x1400)
9637 },
9638 {
9639 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
9640 PCI_VENDOR_ID_ADAPTEC2, 0x1402)
9641 },
9642 {
9643 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
9644 PCI_VENDOR_ID_ADAPTEC2, 0x1410)
9645 },
9646 {
9647 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
9648 PCI_VENDOR_ID_ADAPTEC2, 0x1411)
9649 },
9650 {
9651 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
9652 PCI_VENDOR_ID_ADAPTEC2, 0x1412)
9653 },
9654 {
9655 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
9656 PCI_VENDOR_ID_ADAPTEC2, 0x1420)
9657 },
9658 {
9659 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
9660 PCI_VENDOR_ID_ADAPTEC2, 0x1430)
9661 },
9662 {
9663 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
9664 PCI_VENDOR_ID_ADAPTEC2, 0x1440)
9665 },
9666 {
9667 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
9668 PCI_VENDOR_ID_ADAPTEC2, 0x1441)
9669 },
9670 {
9671 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
9672 PCI_VENDOR_ID_ADAPTEC2, 0x1450)
9673 },
9674 {
9675 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
9676 PCI_VENDOR_ID_ADAPTEC2, 0x1452)
9677 },
9678 {
9679 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
9680 PCI_VENDOR_ID_ADAPTEC2, 0x1460)
9681 },
9682 {
9683 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
9684 PCI_VENDOR_ID_ADAPTEC2, 0x1461)
9685 },
9686 {
9687 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
9688 PCI_VENDOR_ID_ADAPTEC2, 0x1462)
9689 },
c57ee4cc
DB		 9690 {
9691 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
9692 PCI_VENDOR_ID_ADAPTEC2, 0x1463)
9693 },
75fbeacc
KB		 9694 {
9695 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
9696 PCI_VENDOR_ID_ADAPTEC2, 0x1470)
9697 },
9698 {
9699 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
9700 PCI_VENDOR_ID_ADAPTEC2, 0x1471)
9701 },
9702 {
9703 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
9704 PCI_VENDOR_ID_ADAPTEC2, 0x1472)
9705 },
c57ee4cc
DB		 9706 {
9707 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
9708 PCI_VENDOR_ID_ADAPTEC2, 0x1473)
9709 },
9710 {
9711 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
9712 PCI_VENDOR_ID_ADAPTEC2, 0x1474)
9713 },
0b93cf2a
MM		 9714 {
9715 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
9716 PCI_VENDOR_ID_ADAPTEC2, 0x1475)
9717 },
75fbeacc
KB		 9718 {
9719 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
9720 PCI_VENDOR_ID_ADAPTEC2, 0x1480)
9721 },
9722 {
9723 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
9724 PCI_VENDOR_ID_ADAPTEC2, 0x1490)
9725 },
9726 {
9727 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
9728 PCI_VENDOR_ID_ADAPTEC2, 0x1491)
9729 },
9730 {
9731 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
9732 PCI_VENDOR_ID_ADAPTEC2, 0x14a0)
9733 },
9734 {
9735 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
9736 PCI_VENDOR_ID_ADAPTEC2, 0x14a1)
9737 },
80982656
MM		 9738 {
9739 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
9740 PCI_VENDOR_ID_ADAPTEC2, 0x14a2)
9741 },
c57ee4cc
DB		 9742 {
9743 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
9744 PCI_VENDOR_ID_ADAPTEC2, 0x14a4)
9745 },
9746 {
9747 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
9748 PCI_VENDOR_ID_ADAPTEC2, 0x14a5)
9749 },
9750 {
9751 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
9752 PCI_VENDOR_ID_ADAPTEC2, 0x14a6)
9753 },
75fbeacc
KB		 9754 {
9755 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
9756 PCI_VENDOR_ID_ADAPTEC2, 0x14b0)
9757 },
9758 {
9759 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
9760 PCI_VENDOR_ID_ADAPTEC2, 0x14b1)
9761 },
9762 {
9763 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
9764 PCI_VENDOR_ID_ADAPTEC2, 0x14c0)
9765 },
9766 {
9767 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
9768 PCI_VENDOR_ID_ADAPTEC2, 0x14c1)
9769 },
c57ee4cc
DB		 9770 {
9771 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
9772 PCI_VENDOR_ID_ADAPTEC2, 0x14c2)
9773 },
0b93cf2a
MM		 9774 {
9775 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
9776 PCI_VENDOR_ID_ADAPTEC2, 0x14c3)
9777 },
9778 {
9779 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
9780 PCI_VENDOR_ID_ADAPTEC2, 0x14c4)
9781 },
75fbeacc
KB		 9782 {
9783 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
9784 PCI_VENDOR_ID_ADAPTEC2, 0x14d0)
9785 },
9786 {
9787 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
9788 PCI_VENDOR_ID_ADAPTEC2, 0x14e0)
9789 },
9790 {
9791 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
9792 PCI_VENDOR_ID_ADAPTEC2, 0x14f0)
9793 },
9f8d05fa
KB		 9794 {
9795 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
9796 PCI_VENDOR_ID_ADVANTECH, 0x8312)
9797 },
55790064
KB		 9798 {
9799 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
9800 PCI_VENDOR_ID_DELL, 0x1fe0)
9801 },
7eddabff
KB		 9802 {
9803 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
9804 PCI_VENDOR_ID_HP, 0x0600)
9805 },
9806 {
9807 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
9808 PCI_VENDOR_ID_HP, 0x0601)
9809 },
9810 {
9811 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
9812 PCI_VENDOR_ID_HP, 0x0602)
9813 },
9814 {
9815 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
9816 PCI_VENDOR_ID_HP, 0x0603)
9817 },
9818 {
9819 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
55790064 9820 PCI_VENDOR_ID_HP, 0x0609)
7eddabff
KB		 9821 },
9822 {
9823 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
9824 PCI_VENDOR_ID_HP, 0x0650)
9825 },
9826 {
9827 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
9828 PCI_VENDOR_ID_HP, 0x0651)
9829 },
9830 {
9831 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
9832 PCI_VENDOR_ID_HP, 0x0652)
9833 },
9834 {
9835 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
9836 PCI_VENDOR_ID_HP, 0x0653)
9837 },
9838 {
9839 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
9840 PCI_VENDOR_ID_HP, 0x0654)
9841 },
9842 {
9843 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
9844 PCI_VENDOR_ID_HP, 0x0655)
9845 },
7eddabff
KB		 9846 {
9847 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
9848 PCI_VENDOR_ID_HP, 0x0700)
9849 },
9850 {
9851 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
9852 PCI_VENDOR_ID_HP, 0x0701)
6c223761
KB		 9853 },
9854 {
9855 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
9856 PCI_VENDOR_ID_HP, 0x1001)
9857 },
75fbeacc
KB		 9858 {
9859 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
9860 PCI_VENDOR_ID_HP, 0x1002)
9861 },
6c223761
KB		 9862 {
9863 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
9864 PCI_VENDOR_ID_HP, 0x1100)
9865 },
9866 {
9867 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
9868 PCI_VENDOR_ID_HP, 0x1101)
9869 },
75fbeacc
KB		 9870 {
9871 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
9872 0x1590, 0x0294)
9873 },
9874 {
9875 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
9876 0x1590, 0x02db)
9877 },
9878 {
9879 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
9880 0x1590, 0x02dc)
9881 },
9882 {
9883 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
9884 0x1590, 0x032e)
9885 },
c57ee4cc
DB		 9886 {
9887 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
9888 0x1590, 0x036f)
9889 },
9890 {
9891 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
9892 0x1590, 0x0381)
9893 },
9894 {
9895 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
9896 0x1590, 0x0382)
9897 },
9898 {
9899 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
9900 0x1590, 0x0383)
9901 },
8bdb3b9c
GW		 9902 {
9903 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
9904 0x1d8d, 0x0800)
9905 },
9906 {
9907 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
9908 0x1d8d, 0x0908)
9909 },
9910 {
9911 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
9912 0x1d8d, 0x0806)
9913 },
9914 {
9915 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
9916 0x1d8d, 0x0916)
9917 },
71ecc60d
GW		 9918 {
9919 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
9920 PCI_VENDOR_ID_GIGABYTE, 0x1000)
9921 },
e326b97c
MM		 9922 {
9923 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
9924 0x1dfc, 0x3161)
9925 },
c57ee4cc
DB		 9926 {
9927 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
9928 0x1f0c, 0x3161)
9929 },
09d9968a
B		 9930 {
9931 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
9932 0x1cf2, 0x5445)
9933 },
9934 {
9935 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
9936 0x1cf2, 0x5446)
9937 },
9938 {
9939 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
9940 0x1cf2, 0x5447)
9941 },
c57ee4cc
DB		 9942 {
9943 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
9944 0x1cf2, 0x5449)
9945 },
9946 {
9947 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
9948 0x1cf2, 0x544a)
9949 },
9950 {
9951 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
9952 0x1cf2, 0x544b)
9953 },
9954 {
9955 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
9956 0x1cf2, 0x544d)
9957 },
9958 {
9959 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
9960 0x1cf2, 0x544e)
9961 },
9962 {
9963 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
9964 0x1cf2, 0x544f)
9965 },
09d9968a
B		 9966 {
9967 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
9968 0x1cf2, 0x0b27)
9969 },
9970 {
9971 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
9972 0x1cf2, 0x0b29)
9973 },
9974 {
9975 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
9976 0x1cf2, 0x0b45)
9977 },
dab53784
MB		 9978 {
9979 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
9980 0x1cc4, 0x0101)
9981 },
9982 {
9983 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
9984 0x1cc4, 0x0201)
9985 },
2a9c2ba2
MM		 9986 {
9987 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
9988 PCI_VENDOR_ID_LENOVO, 0x0220)
9989 },
9990 {
9991 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
9992 PCI_VENDOR_ID_LENOVO, 0x0221)
9993 },
9994 {
9995 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
9996 PCI_VENDOR_ID_LENOVO, 0x0520)
9997 },
9998 {
9999 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
10000 PCI_VENDOR_ID_LENOVO, 0x0522)
10001 },
10002 {
10003 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
10004 PCI_VENDOR_ID_LENOVO, 0x0620)
10005 },
10006 {
10007 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
10008 PCI_VENDOR_ID_LENOVO, 0x0621)
10009 },
10010 {
10011 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
10012 PCI_VENDOR_ID_LENOVO, 0x0622)
10013 },
10014 {
10015 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
10016 PCI_VENDOR_ID_LENOVO, 0x0623)
10017 },
0b93cf2a
MM		 10018 {
10019 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
10020 0x1e93, 0x1000)
10021 },
10022 {
10023 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
10024 0x1e93, 0x1001)
10025 },
10026 {
10027 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
10028 0x1e93, 0x1002)
10029 },
6c223761
KB		 10030 {
10031 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
10032 PCI_ANY_ID, PCI_ANY_ID)
10033 },
10034 { 0 }
10035};
10036
10037MODULE_DEVICE_TABLE(pci, pqi_pci_id_table);
10038
10039static struct pci_driver pqi_pci_driver = {
10040 .name = DRIVER_NAME_SHORT,
10041 .id_table = pqi_pci_id_table,
10042 .probe = pqi_pci_probe,
10043 .remove = pqi_pci_remove,
10044 .shutdown = pqi_shutdown,
061ef06a 10045#if defined(CONFIG_PM)
c66e078a
KB		 10046 .driver = {
10047 .pm = &pqi_pm_ops
10048 },
061ef06a 10049#endif
6c223761
KB		 10050};
10051
10052static int __init pqi_init(void)
10053{
10054 int rc;
10055
10056 pr_info(DRIVER_NAME "\n");
5e693586
MM		 10057 pqi_verify_structures();
10058 sis_verify_structures();
6c223761 10059
8b664fef 10060 pqi_sas_transport_template = sas_attach_transport(&pqi_sas_transport_functions);
6c223761
KB		 10061 if (!pqi_sas_transport_template)
10062 return -ENODEV;
10063
3c50976f
KB		 10064 pqi_process_module_params();
10065
6c223761
KB		 10066 rc = pci_register_driver(&pqi_pci_driver);
10067 if (rc)
10068 sas_release_transport(pqi_sas_transport_template);
10069
10070 return rc;
10071}
10072
10073static void __exit pqi_cleanup(void)
10074{
10075 pci_unregister_driver(&pqi_pci_driver);
10076 sas_release_transport(pqi_sas_transport_template);
10077}
10078
10079module_init(pqi_init);
10080module_exit(pqi_cleanup);
10081
5e693586 10082static void pqi_verify_structures(void)
6c223761
KB		 10083{
10084 BUILD_BUG_ON(offsetof(struct pqi_ctrl_registers,
10085 sis_host_to_ctrl_doorbell) != 0x20);
10086 BUILD_BUG_ON(offsetof(struct pqi_ctrl_registers,
10087 sis_interrupt_mask) != 0x34);
10088 BUILD_BUG_ON(offsetof(struct pqi_ctrl_registers,
10089 sis_ctrl_to_host_doorbell) != 0x9c);
10090 BUILD_BUG_ON(offsetof(struct pqi_ctrl_registers,
10091 sis_ctrl_to_host_doorbell_clear) != 0xa0);
ff6abb73
KB		 10092 BUILD_BUG_ON(offsetof(struct pqi_ctrl_registers,
10093 sis_driver_scratch) != 0xb0);
2708a256
KB		 10094 BUILD_BUG_ON(offsetof(struct pqi_ctrl_registers,
10095 sis_product_identifier) != 0xb4);
6c223761
KB		 10096 BUILD_BUG_ON(offsetof(struct pqi_ctrl_registers,
10097 sis_firmware_status) != 0xbc);
5d1f03e6
MB		 10098 BUILD_BUG_ON(offsetof(struct pqi_ctrl_registers,
10099 sis_ctrl_shutdown_reason_code) != 0xcc);
6c223761
KB		 10100 BUILD_BUG_ON(offsetof(struct pqi_ctrl_registers,
10101 sis_mailbox) != 0x1000);
10102 BUILD_BUG_ON(offsetof(struct pqi_ctrl_registers,
10103 pqi_registers) != 0x4000);
10104
10105 BUILD_BUG_ON(offsetof(struct pqi_iu_header,
10106 iu_type) != 0x0);
10107 BUILD_BUG_ON(offsetof(struct pqi_iu_header,
10108 iu_length) != 0x2);
10109 BUILD_BUG_ON(offsetof(struct pqi_iu_header,
10110 response_queue_id) != 0x4);
10111 BUILD_BUG_ON(offsetof(struct pqi_iu_header,
ae0c189d 10112 driver_flags) != 0x6);
6c223761
KB		 10113 BUILD_BUG_ON(sizeof(struct pqi_iu_header) != 0x8);
10114
10115 BUILD_BUG_ON(offsetof(struct pqi_aio_error_info,
10116 status) != 0x0);
10117 BUILD_BUG_ON(offsetof(struct pqi_aio_error_info,
10118 service_response) != 0x1);
10119 BUILD_BUG_ON(offsetof(struct pqi_aio_error_info,
10120 data_present) != 0x2);
10121 BUILD_BUG_ON(offsetof(struct pqi_aio_error_info,
10122 reserved) != 0x3);
10123 BUILD_BUG_ON(offsetof(struct pqi_aio_error_info,
10124 residual_count) != 0x4);
10125 BUILD_BUG_ON(offsetof(struct pqi_aio_error_info,
10126 data_length) != 0x8);
10127 BUILD_BUG_ON(offsetof(struct pqi_aio_error_info,
10128 reserved1) != 0xa);
10129 BUILD_BUG_ON(offsetof(struct pqi_aio_error_info,
10130 data) != 0xc);
10131 BUILD_BUG_ON(sizeof(struct pqi_aio_error_info) != 0x10c);
10132
10133 BUILD_BUG_ON(offsetof(struct pqi_raid_error_info,
10134 data_in_result) != 0x0);
10135 BUILD_BUG_ON(offsetof(struct pqi_raid_error_info,
10136 data_out_result) != 0x1);
10137 BUILD_BUG_ON(offsetof(struct pqi_raid_error_info,
10138 reserved) != 0x2);
10139 BUILD_BUG_ON(offsetof(struct pqi_raid_error_info,
10140 status) != 0x5);
10141 BUILD_BUG_ON(offsetof(struct pqi_raid_error_info,
10142 status_qualifier) != 0x6);
10143 BUILD_BUG_ON(offsetof(struct pqi_raid_error_info,
10144 sense_data_length) != 0x8);
10145 BUILD_BUG_ON(offsetof(struct pqi_raid_error_info,
10146 response_data_length) != 0xa);
10147 BUILD_BUG_ON(offsetof(struct pqi_raid_error_info,
10148 data_in_transferred) != 0xc);
10149 BUILD_BUG_ON(offsetof(struct pqi_raid_error_info,
10150 data_out_transferred) != 0x10);
10151 BUILD_BUG_ON(offsetof(struct pqi_raid_error_info,
10152 data) != 0x14);
10153 BUILD_BUG_ON(sizeof(struct pqi_raid_error_info) != 0x114);
10154
10155 BUILD_BUG_ON(offsetof(struct pqi_device_registers,
10156 signature) != 0x0);
10157 BUILD_BUG_ON(offsetof(struct pqi_device_registers,
10158 function_and_status_code) != 0x8);
10159 BUILD_BUG_ON(offsetof(struct pqi_device_registers,
10160 max_admin_iq_elements) != 0x10);
10161 BUILD_BUG_ON(offsetof(struct pqi_device_registers,
10162 max_admin_oq_elements) != 0x11);
10163 BUILD_BUG_ON(offsetof(struct pqi_device_registers,
10164 admin_iq_element_length) != 0x12);
10165 BUILD_BUG_ON(offsetof(struct pqi_device_registers,
10166 admin_oq_element_length) != 0x13);
10167 BUILD_BUG_ON(offsetof(struct pqi_device_registers,
10168 max_reset_timeout) != 0x14);
10169 BUILD_BUG_ON(offsetof(struct pqi_device_registers,
10170 legacy_intx_status) != 0x18);
10171 BUILD_BUG_ON(offsetof(struct pqi_device_registers,
10172 legacy_intx_mask_set) != 0x1c);
10173 BUILD_BUG_ON(offsetof(struct pqi_device_registers,
10174 legacy_intx_mask_clear) != 0x20);
10175 BUILD_BUG_ON(offsetof(struct pqi_device_registers,
10176 device_status) != 0x40);
10177 BUILD_BUG_ON(offsetof(struct pqi_device_registers,
10178 admin_iq_pi_offset) != 0x48);
10179 BUILD_BUG_ON(offsetof(struct pqi_device_registers,
10180 admin_oq_ci_offset) != 0x50);
10181 BUILD_BUG_ON(offsetof(struct pqi_device_registers,
10182 admin_iq_element_array_addr) != 0x58);
10183 BUILD_BUG_ON(offsetof(struct pqi_device_registers,
10184 admin_oq_element_array_addr) != 0x60);
10185 BUILD_BUG_ON(offsetof(struct pqi_device_registers,
10186 admin_iq_ci_addr) != 0x68);
10187 BUILD_BUG_ON(offsetof(struct pqi_device_registers,
10188 admin_oq_pi_addr) != 0x70);
10189 BUILD_BUG_ON(offsetof(struct pqi_device_registers,
10190 admin_iq_num_elements) != 0x78);
10191 BUILD_BUG_ON(offsetof(struct pqi_device_registers,
10192 admin_oq_num_elements) != 0x79);
10193 BUILD_BUG_ON(offsetof(struct pqi_device_registers,
10194 admin_queue_int_msg_num) != 0x7a);
10195 BUILD_BUG_ON(offsetof(struct pqi_device_registers,
10196 device_error) != 0x80);
10197 BUILD_BUG_ON(offsetof(struct pqi_device_registers,
10198 error_details) != 0x88);
10199 BUILD_BUG_ON(offsetof(struct pqi_device_registers,
10200 device_reset) != 0x90);
10201 BUILD_BUG_ON(offsetof(struct pqi_device_registers,
10202 power_action) != 0x94);
10203 BUILD_BUG_ON(sizeof(struct pqi_device_registers) != 0x100);
10204
10205 BUILD_BUG_ON(offsetof(struct pqi_general_admin_request,
10206 header.iu_type) != 0);
10207 BUILD_BUG_ON(offsetof(struct pqi_general_admin_request,
10208 header.iu_length) != 2);
10209 BUILD_BUG_ON(offsetof(struct pqi_general_admin_request,
ae0c189d 10210 header.driver_flags) != 6);
6c223761
KB		 10211 BUILD_BUG_ON(offsetof(struct pqi_general_admin_request,
10212 request_id) != 8);
10213 BUILD_BUG_ON(offsetof(struct pqi_general_admin_request,
10214 function_code) != 10);
10215 BUILD_BUG_ON(offsetof(struct pqi_general_admin_request,
10216 data.report_device_capability.buffer_length) != 44);
10217 BUILD_BUG_ON(offsetof(struct pqi_general_admin_request,
10218 data.report_device_capability.sg_descriptor) != 48);
10219 BUILD_BUG_ON(offsetof(struct pqi_general_admin_request,
10220 data.create_operational_iq.queue_id) != 12);
10221 BUILD_BUG_ON(offsetof(struct pqi_general_admin_request,
10222 data.create_operational_iq.element_array_addr) != 16);
10223 BUILD_BUG_ON(offsetof(struct pqi_general_admin_request,
10224 data.create_operational_iq.ci_addr) != 24);
10225 BUILD_BUG_ON(offsetof(struct pqi_general_admin_request,
10226 data.create_operational_iq.num_elements) != 32);
10227 BUILD_BUG_ON(offsetof(struct pqi_general_admin_request,
10228 data.create_operational_iq.element_length) != 34);
10229 BUILD_BUG_ON(offsetof(struct pqi_general_admin_request,
10230 data.create_operational_iq.queue_protocol) != 36);
10231 BUILD_BUG_ON(offsetof(struct pqi_general_admin_request,
10232 data.create_operational_oq.queue_id) != 12);
10233 BUILD_BUG_ON(offsetof(struct pqi_general_admin_request,
10234 data.create_operational_oq.element_array_addr) != 16);
10235 BUILD_BUG_ON(offsetof(struct pqi_general_admin_request,
10236 data.create_operational_oq.pi_addr) != 24);
10237 BUILD_BUG_ON(offsetof(struct pqi_general_admin_request,
10238 data.create_operational_oq.num_elements) != 32);
10239 BUILD_BUG_ON(offsetof(struct pqi_general_admin_request,
10240 data.create_operational_oq.element_length) != 34);
10241 BUILD_BUG_ON(offsetof(struct pqi_general_admin_request,
10242 data.create_operational_oq.queue_protocol) != 36);
10243 BUILD_BUG_ON(offsetof(struct pqi_general_admin_request,
10244 data.create_operational_oq.int_msg_num) != 40);
10245 BUILD_BUG_ON(offsetof(struct pqi_general_admin_request,
10246 data.create_operational_oq.coalescing_count) != 42);
10247 BUILD_BUG_ON(offsetof(struct pqi_general_admin_request,
10248 data.create_operational_oq.min_coalescing_time) != 44);
10249 BUILD_BUG_ON(offsetof(struct pqi_general_admin_request,
10250 data.create_operational_oq.max_coalescing_time) != 48);
10251 BUILD_BUG_ON(offsetof(struct pqi_general_admin_request,
10252 data.delete_operational_queue.queue_id) != 12);
10253 BUILD_BUG_ON(sizeof(struct pqi_general_admin_request) != 64);
c593642c 10254 BUILD_BUG_ON(sizeof_field(struct pqi_general_admin_request,
6c223761 10255 data.create_operational_iq) != 64 - 11);
c593642c 10256 BUILD_BUG_ON(sizeof_field(struct pqi_general_admin_request,
6c223761 10257 data.create_operational_oq) != 64 - 11);
c593642c 10258 BUILD_BUG_ON(sizeof_field(struct pqi_general_admin_request,
6c223761
KB		 10259 data.delete_operational_queue) != 64 - 11);
10260
10261 BUILD_BUG_ON(offsetof(struct pqi_general_admin_response,
10262 header.iu_type) != 0);
10263 BUILD_BUG_ON(offsetof(struct pqi_general_admin_response,
10264 header.iu_length) != 2);
10265 BUILD_BUG_ON(offsetof(struct pqi_general_admin_response,
ae0c189d 10266 header.driver_flags) != 6);
6c223761
KB		 10267 BUILD_BUG_ON(offsetof(struct pqi_general_admin_response,
10268 request_id) != 8);
10269 BUILD_BUG_ON(offsetof(struct pqi_general_admin_response,
10270 function_code) != 10);
10271 BUILD_BUG_ON(offsetof(struct pqi_general_admin_response,
10272 status) != 11);
10273 BUILD_BUG_ON(offsetof(struct pqi_general_admin_response,
10274 data.create_operational_iq.status_descriptor) != 12);
10275 BUILD_BUG_ON(offsetof(struct pqi_general_admin_response,
10276 data.create_operational_iq.iq_pi_offset) != 16);
10277 BUILD_BUG_ON(offsetof(struct pqi_general_admin_response,
10278 data.create_operational_oq.status_descriptor) != 12);
10279 BUILD_BUG_ON(offsetof(struct pqi_general_admin_response,
10280 data.create_operational_oq.oq_ci_offset) != 16);
10281 BUILD_BUG_ON(sizeof(struct pqi_general_admin_response) != 64);
10282
10283 BUILD_BUG_ON(offsetof(struct pqi_raid_path_request,
10284 header.iu_type) != 0);
10285 BUILD_BUG_ON(offsetof(struct pqi_raid_path_request,
10286 header.iu_length) != 2);
10287 BUILD_BUG_ON(offsetof(struct pqi_raid_path_request,
10288 header.response_queue_id) != 4);
10289 BUILD_BUG_ON(offsetof(struct pqi_raid_path_request,
ae0c189d 10290 header.driver_flags) != 6);
6c223761
KB		 10291 BUILD_BUG_ON(offsetof(struct pqi_raid_path_request,
10292 request_id) != 8);
10293 BUILD_BUG_ON(offsetof(struct pqi_raid_path_request,
10294 nexus_id) != 10);
10295 BUILD_BUG_ON(offsetof(struct pqi_raid_path_request,
10296 buffer_length) != 12);
10297 BUILD_BUG_ON(offsetof(struct pqi_raid_path_request,
10298 lun_number) != 16);
10299 BUILD_BUG_ON(offsetof(struct pqi_raid_path_request,
10300 protocol_specific) != 24);
10301 BUILD_BUG_ON(offsetof(struct pqi_raid_path_request,
10302 error_index) != 27);
10303 BUILD_BUG_ON(offsetof(struct pqi_raid_path_request,
10304 cdb) != 32);
21432010 10305 BUILD_BUG_ON(offsetof(struct pqi_raid_path_request,
10306 timeout) != 60);
6c223761
KB		 10307 BUILD_BUG_ON(offsetof(struct pqi_raid_path_request,
10308 sg_descriptors) != 64);
10309 BUILD_BUG_ON(sizeof(struct pqi_raid_path_request) !=
10310 PQI_OPERATIONAL_IQ_ELEMENT_LENGTH);
10311
10312 BUILD_BUG_ON(offsetof(struct pqi_aio_path_request,
10313 header.iu_type) != 0);
10314 BUILD_BUG_ON(offsetof(struct pqi_aio_path_request,
10315 header.iu_length) != 2);
10316 BUILD_BUG_ON(offsetof(struct pqi_aio_path_request,
10317 header.response_queue_id) != 4);
10318 BUILD_BUG_ON(offsetof(struct pqi_aio_path_request,
ae0c189d 10319 header.driver_flags) != 6);
6c223761
KB		 10320 BUILD_BUG_ON(offsetof(struct pqi_aio_path_request,
10321 request_id) != 8);
10322 BUILD_BUG_ON(offsetof(struct pqi_aio_path_request,
10323 nexus_id) != 12);
10324 BUILD_BUG_ON(offsetof(struct pqi_aio_path_request,
10325 buffer_length) != 16);
10326 BUILD_BUG_ON(offsetof(struct pqi_aio_path_request,
10327 data_encryption_key_index) != 22);
10328 BUILD_BUG_ON(offsetof(struct pqi_aio_path_request,
10329 encrypt_tweak_lower) != 24);
10330 BUILD_BUG_ON(offsetof(struct pqi_aio_path_request,
10331 encrypt_tweak_upper) != 28);
10332 BUILD_BUG_ON(offsetof(struct pqi_aio_path_request,
10333 cdb) != 32);
10334 BUILD_BUG_ON(offsetof(struct pqi_aio_path_request,
10335 error_index) != 48);
10336 BUILD_BUG_ON(offsetof(struct pqi_aio_path_request,
10337 num_sg_descriptors) != 50);
10338 BUILD_BUG_ON(offsetof(struct pqi_aio_path_request,
10339 cdb_length) != 51);
10340 BUILD_BUG_ON(offsetof(struct pqi_aio_path_request,
10341 lun_number) != 52);
10342 BUILD_BUG_ON(offsetof(struct pqi_aio_path_request,
10343 sg_descriptors) != 64);
10344 BUILD_BUG_ON(sizeof(struct pqi_aio_path_request) !=
10345 PQI_OPERATIONAL_IQ_ELEMENT_LENGTH);
10346
10347 BUILD_BUG_ON(offsetof(struct pqi_io_response,
10348 header.iu_type) != 0);
10349 BUILD_BUG_ON(offsetof(struct pqi_io_response,
10350 header.iu_length) != 2);
10351 BUILD_BUG_ON(offsetof(struct pqi_io_response,
10352 request_id) != 8);
10353 BUILD_BUG_ON(offsetof(struct pqi_io_response,
10354 error_index) != 10);
10355
10356 BUILD_BUG_ON(offsetof(struct pqi_general_management_request,
10357 header.iu_type) != 0);
10358 BUILD_BUG_ON(offsetof(struct pqi_general_management_request,
10359 header.iu_length) != 2);
10360 BUILD_BUG_ON(offsetof(struct pqi_general_management_request,
10361 header.response_queue_id) != 4);
10362 BUILD_BUG_ON(offsetof(struct pqi_general_management_request,
10363 request_id) != 8);
10364 BUILD_BUG_ON(offsetof(struct pqi_general_management_request,
10365 data.report_event_configuration.buffer_length) != 12);
10366 BUILD_BUG_ON(offsetof(struct pqi_general_management_request,
10367 data.report_event_configuration.sg_descriptors) != 16);
10368 BUILD_BUG_ON(offsetof(struct pqi_general_management_request,
10369 data.set_event_configuration.global_event_oq_id) != 10);
10370 BUILD_BUG_ON(offsetof(struct pqi_general_management_request,
10371 data.set_event_configuration.buffer_length) != 12);
10372 BUILD_BUG_ON(offsetof(struct pqi_general_management_request,
10373 data.set_event_configuration.sg_descriptors) != 16);
10374
10375 BUILD_BUG_ON(offsetof(struct pqi_iu_layer_descriptor,
10376 max_inbound_iu_length) != 6);
10377 BUILD_BUG_ON(offsetof(struct pqi_iu_layer_descriptor,
10378 max_outbound_iu_length) != 14);
10379 BUILD_BUG_ON(sizeof(struct pqi_iu_layer_descriptor) != 16);
10380
10381 BUILD_BUG_ON(offsetof(struct pqi_device_capability,
10382 data_length) != 0);
10383 BUILD_BUG_ON(offsetof(struct pqi_device_capability,
10384 iq_arbitration_priority_support_bitmask) != 8);
10385 BUILD_BUG_ON(offsetof(struct pqi_device_capability,
10386 maximum_aw_a) != 9);
10387 BUILD_BUG_ON(offsetof(struct pqi_device_capability,
10388 maximum_aw_b) != 10);
10389 BUILD_BUG_ON(offsetof(struct pqi_device_capability,
10390 maximum_aw_c) != 11);
10391 BUILD_BUG_ON(offsetof(struct pqi_device_capability,
10392 max_inbound_queues) != 16);
10393 BUILD_BUG_ON(offsetof(struct pqi_device_capability,
10394 max_elements_per_iq) != 18);
10395 BUILD_BUG_ON(offsetof(struct pqi_device_capability,
10396 max_iq_element_length) != 24);
10397 BUILD_BUG_ON(offsetof(struct pqi_device_capability,
10398 min_iq_element_length) != 26);
10399 BUILD_BUG_ON(offsetof(struct pqi_device_capability,
10400 max_outbound_queues) != 30);
10401 BUILD_BUG_ON(offsetof(struct pqi_device_capability,
10402 max_elements_per_oq) != 32);
10403 BUILD_BUG_ON(offsetof(struct pqi_device_capability,
10404 intr_coalescing_time_granularity) != 34);
10405 BUILD_BUG_ON(offsetof(struct pqi_device_capability,
10406 max_oq_element_length) != 36);
10407 BUILD_BUG_ON(offsetof(struct pqi_device_capability,
10408 min_oq_element_length) != 38);
10409 BUILD_BUG_ON(offsetof(struct pqi_device_capability,
10410 iu_layer_descriptors) != 64);
10411 BUILD_BUG_ON(sizeof(struct pqi_device_capability) != 576);
10412
10413 BUILD_BUG_ON(offsetof(struct pqi_event_descriptor,
10414 event_type) != 0);
10415 BUILD_BUG_ON(offsetof(struct pqi_event_descriptor,
10416 oq_id) != 2);
10417 BUILD_BUG_ON(sizeof(struct pqi_event_descriptor) != 4);
10418
10419 BUILD_BUG_ON(offsetof(struct pqi_event_config,
10420 num_event_descriptors) != 2);
10421 BUILD_BUG_ON(offsetof(struct pqi_event_config,
10422 descriptors) != 4);
10423
061ef06a
KB		 10424 BUILD_BUG_ON(PQI_NUM_SUPPORTED_EVENTS !=
10425 ARRAY_SIZE(pqi_supported_event_types));
10426
6c223761
KB		 10427 BUILD_BUG_ON(offsetof(struct pqi_event_response,
10428 header.iu_type) != 0);
10429 BUILD_BUG_ON(offsetof(struct pqi_event_response,
10430 header.iu_length) != 2);
10431 BUILD_BUG_ON(offsetof(struct pqi_event_response,
10432 event_type) != 8);
10433 BUILD_BUG_ON(offsetof(struct pqi_event_response,
10434 event_id) != 10);
10435 BUILD_BUG_ON(offsetof(struct pqi_event_response,
10436 additional_event_id) != 12);
10437 BUILD_BUG_ON(offsetof(struct pqi_event_response,
10438 data) != 16);
10439 BUILD_BUG_ON(sizeof(struct pqi_event_response) != 32);
10440
10441 BUILD_BUG_ON(offsetof(struct pqi_event_acknowledge_request,
10442 header.iu_type) != 0);
10443 BUILD_BUG_ON(offsetof(struct pqi_event_acknowledge_request,
10444 header.iu_length) != 2);
10445 BUILD_BUG_ON(offsetof(struct pqi_event_acknowledge_request,
10446 event_type) != 8);
10447 BUILD_BUG_ON(offsetof(struct pqi_event_acknowledge_request,
10448 event_id) != 10);
10449 BUILD_BUG_ON(offsetof(struct pqi_event_acknowledge_request,
10450 additional_event_id) != 12);
10451 BUILD_BUG_ON(sizeof(struct pqi_event_acknowledge_request) != 16);
10452
10453 BUILD_BUG_ON(offsetof(struct pqi_task_management_request,
10454 header.iu_type) != 0);
10455 BUILD_BUG_ON(offsetof(struct pqi_task_management_request,
10456 header.iu_length) != 2);
10457 BUILD_BUG_ON(offsetof(struct pqi_task_management_request,
10458 request_id) != 8);
10459 BUILD_BUG_ON(offsetof(struct pqi_task_management_request,
10460 nexus_id) != 10);
10461 BUILD_BUG_ON(offsetof(struct pqi_task_management_request,
c2922f17
MB		 10462 timeout) != 14);
10463 BUILD_BUG_ON(offsetof(struct pqi_task_management_request,
6c223761
KB		 10464 lun_number) != 16);
10465 BUILD_BUG_ON(offsetof(struct pqi_task_management_request,
10466 protocol_specific) != 24);
10467 BUILD_BUG_ON(offsetof(struct pqi_task_management_request,
10468 outbound_queue_id_to_manage) != 26);
10469 BUILD_BUG_ON(offsetof(struct pqi_task_management_request,
10470 request_id_to_manage) != 28);
10471 BUILD_BUG_ON(offsetof(struct pqi_task_management_request,
10472 task_management_function) != 30);
10473 BUILD_BUG_ON(sizeof(struct pqi_task_management_request) != 32);
10474
10475 BUILD_BUG_ON(offsetof(struct pqi_task_management_response,
10476 header.iu_type) != 0);
10477 BUILD_BUG_ON(offsetof(struct pqi_task_management_response,
10478 header.iu_length) != 2);
10479 BUILD_BUG_ON(offsetof(struct pqi_task_management_response,
10480 request_id) != 8);
10481 BUILD_BUG_ON(offsetof(struct pqi_task_management_response,
10482 nexus_id) != 10);
10483 BUILD_BUG_ON(offsetof(struct pqi_task_management_response,
10484 additional_response_info) != 12);
10485 BUILD_BUG_ON(offsetof(struct pqi_task_management_response,
10486 response_code) != 15);
10487 BUILD_BUG_ON(sizeof(struct pqi_task_management_response) != 16);
10488
10489 BUILD_BUG_ON(offsetof(struct bmic_identify_controller,
10490 configured_logical_drive_count) != 0);
10491 BUILD_BUG_ON(offsetof(struct bmic_identify_controller,
10492 configuration_signature) != 1);
10493 BUILD_BUG_ON(offsetof(struct bmic_identify_controller,
598bef8d 10494 firmware_version_short) != 5);
6c223761
KB		 10495 BUILD_BUG_ON(offsetof(struct bmic_identify_controller,
10496 extended_logical_unit_count) != 154);
10497 BUILD_BUG_ON(offsetof(struct bmic_identify_controller,
10498 firmware_build_number) != 190);
598bef8d
KB		 10499 BUILD_BUG_ON(offsetof(struct bmic_identify_controller,
10500 vendor_id) != 200);
10501 BUILD_BUG_ON(offsetof(struct bmic_identify_controller,
10502 product_id) != 208);
10503 BUILD_BUG_ON(offsetof(struct bmic_identify_controller,
10504 extra_controller_flags) != 286);
6c223761
KB		 10505 BUILD_BUG_ON(offsetof(struct bmic_identify_controller,
10506 controller_mode) != 292);
598bef8d
KB		 10507 BUILD_BUG_ON(offsetof(struct bmic_identify_controller,
10508 spare_part_number) != 293);
10509 BUILD_BUG_ON(offsetof(struct bmic_identify_controller,
10510 firmware_version_long) != 325);
6c223761 10511
1be42f46
KB		 10512 BUILD_BUG_ON(offsetof(struct bmic_identify_physical_device,
10513 phys_bay_in_box) != 115);
10514 BUILD_BUG_ON(offsetof(struct bmic_identify_physical_device,
10515 device_type) != 120);
10516 BUILD_BUG_ON(offsetof(struct bmic_identify_physical_device,
10517 redundant_path_present_map) != 1736);
10518 BUILD_BUG_ON(offsetof(struct bmic_identify_physical_device,
10519 active_path_number) != 1738);
10520 BUILD_BUG_ON(offsetof(struct bmic_identify_physical_device,
10521 alternate_paths_phys_connector) != 1739);
10522 BUILD_BUG_ON(offsetof(struct bmic_identify_physical_device,
10523 alternate_paths_phys_box_on_port) != 1755);
10524 BUILD_BUG_ON(offsetof(struct bmic_identify_physical_device,
10525 current_queue_depth_limit) != 1796);
10526 BUILD_BUG_ON(sizeof(struct bmic_identify_physical_device) != 2560);
10527
f6cc2a77
KB		 10528 BUILD_BUG_ON(sizeof(struct bmic_sense_feature_buffer_header) != 4);
10529 BUILD_BUG_ON(offsetof(struct bmic_sense_feature_buffer_header,
10530 page_code) != 0);
10531 BUILD_BUG_ON(offsetof(struct bmic_sense_feature_buffer_header,
10532 subpage_code) != 1);
10533 BUILD_BUG_ON(offsetof(struct bmic_sense_feature_buffer_header,
10534 buffer_length) != 2);
10535
10536 BUILD_BUG_ON(sizeof(struct bmic_sense_feature_page_header) != 4);
10537 BUILD_BUG_ON(offsetof(struct bmic_sense_feature_page_header,
10538 page_code) != 0);
10539 BUILD_BUG_ON(offsetof(struct bmic_sense_feature_page_header,
10540 subpage_code) != 1);
10541 BUILD_BUG_ON(offsetof(struct bmic_sense_feature_page_header,
10542 page_length) != 2);
10543
10544 BUILD_BUG_ON(sizeof(struct bmic_sense_feature_io_page_aio_subpage)
10545 != 18);
10546 BUILD_BUG_ON(offsetof(struct bmic_sense_feature_io_page_aio_subpage,
10547 header) != 0);
10548 BUILD_BUG_ON(offsetof(struct bmic_sense_feature_io_page_aio_subpage,
10549 firmware_read_support) != 4);
10550 BUILD_BUG_ON(offsetof(struct bmic_sense_feature_io_page_aio_subpage,
10551 driver_read_support) != 5);
10552 BUILD_BUG_ON(offsetof(struct bmic_sense_feature_io_page_aio_subpage,
10553 firmware_write_support) != 6);
10554 BUILD_BUG_ON(offsetof(struct bmic_sense_feature_io_page_aio_subpage,
10555 driver_write_support) != 7);
10556 BUILD_BUG_ON(offsetof(struct bmic_sense_feature_io_page_aio_subpage,
10557 max_transfer_encrypted_sas_sata) != 8);
10558 BUILD_BUG_ON(offsetof(struct bmic_sense_feature_io_page_aio_subpage,
10559 max_transfer_encrypted_nvme) != 10);
10560 BUILD_BUG_ON(offsetof(struct bmic_sense_feature_io_page_aio_subpage,
10561 max_write_raid_5_6) != 12);
10562 BUILD_BUG_ON(offsetof(struct bmic_sense_feature_io_page_aio_subpage,
10563 max_write_raid_1_10_2drive) != 14);
10564 BUILD_BUG_ON(offsetof(struct bmic_sense_feature_io_page_aio_subpage,
10565 max_write_raid_1_10_3drive) != 16);
10566
6c223761
KB		 10567 BUILD_BUG_ON(PQI_ADMIN_IQ_NUM_ELEMENTS > 255);
10568 BUILD_BUG_ON(PQI_ADMIN_OQ_NUM_ELEMENTS > 255);
10569 BUILD_BUG_ON(PQI_ADMIN_IQ_ELEMENT_LENGTH %
10570 PQI_QUEUE_ELEMENT_LENGTH_ALIGNMENT != 0);
10571 BUILD_BUG_ON(PQI_ADMIN_OQ_ELEMENT_LENGTH %
10572 PQI_QUEUE_ELEMENT_LENGTH_ALIGNMENT != 0);
10573 BUILD_BUG_ON(PQI_OPERATIONAL_IQ_ELEMENT_LENGTH > 1048560);
10574 BUILD_BUG_ON(PQI_OPERATIONAL_IQ_ELEMENT_LENGTH %
10575 PQI_QUEUE_ELEMENT_LENGTH_ALIGNMENT != 0);
10576 BUILD_BUG_ON(PQI_OPERATIONAL_OQ_ELEMENT_LENGTH > 1048560);
10577 BUILD_BUG_ON(PQI_OPERATIONAL_OQ_ELEMENT_LENGTH %
10578 PQI_QUEUE_ELEMENT_LENGTH_ALIGNMENT != 0);
10579
10580 BUILD_BUG_ON(PQI_RESERVED_IO_SLOTS >= PQI_MAX_OUTSTANDING_REQUESTS);
d727a776
KB		 10581 BUILD_BUG_ON(PQI_RESERVED_IO_SLOTS >=
10582 PQI_MAX_OUTSTANDING_REQUESTS_KDUMP);
6c223761 10583}
Linux 6.x block layer and io_uring tree(s)