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scsi: mpi3mr: Clean up mpi3mr_print_ioc_info()
[linux-2.6-block.git] / drivers / scsi / smartpqi / smartpqi_init.c
CommitLineData
2cc37b15 1// SPDX-License-Identifier: GPL-2.0
6c223761 2/*
889653ec
KB		 3 * driver for Microchip PQI-based storage controllers
4 * Copyright (c) 2019-2021 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
f339c7e4 36#define DRIVER_VERSION "2.1.10-020"
d56030f8
DB		 37#define DRIVER_MAJOR 2
38#define DRIVER_MINOR 1
f339c7e4
DB		 39#define DRIVER_RELEASE 10
40#define DRIVER_REVISION 20
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
6c223761 57static void pqi_take_ctrl_offline(struct pqi_ctrl_info *ctrl_info);
5f310425 58static void pqi_ctrl_offline_worker(struct work_struct *work);
6c223761
KB		 59static int pqi_scan_scsi_devices(struct pqi_ctrl_info *ctrl_info);
60static void pqi_scan_start(struct Scsi_Host *shost);
61static void pqi_start_io(struct pqi_ctrl_info *ctrl_info,
62 struct pqi_queue_group *queue_group, enum pqi_io_path path,
63 struct pqi_io_request *io_request);
64static int pqi_submit_raid_request_synchronous(struct pqi_ctrl_info *ctrl_info,
65 struct pqi_iu_header *request, unsigned int flags,
ae0c189d 66 struct pqi_raid_error_info *error_info);
6c223761
KB		 67static int pqi_aio_submit_io(struct pqi_ctrl_info *ctrl_info,
68 struct scsi_cmnd *scmd, u32 aio_handle, u8 *cdb,
69 unsigned int cdb_length, struct pqi_queue_group *queue_group,
376fb880 70 struct pqi_encryption_info *encryption_info, bool raid_bypass);
7a012c23
DB		 71static int pqi_aio_submit_r1_write_io(struct pqi_ctrl_info *ctrl_info,
72 struct scsi_cmnd *scmd, struct pqi_queue_group *queue_group,
73 struct pqi_encryption_info *encryption_info, struct pqi_scsi_dev *device,
74 struct pqi_scsi_dev_raid_map_data *rmd);
6702d2c4
DB		 75static int pqi_aio_submit_r56_write_io(struct pqi_ctrl_info *ctrl_info,
76 struct scsi_cmnd *scmd, struct pqi_queue_group *queue_group,
77 struct pqi_encryption_info *encryption_info, struct pqi_scsi_dev *device,
78 struct pqi_scsi_dev_raid_map_data *rmd);
4fd22c13
MR		 79static void pqi_ofa_ctrl_quiesce(struct pqi_ctrl_info *ctrl_info);
80static void pqi_ofa_ctrl_unquiesce(struct pqi_ctrl_info *ctrl_info);
2790cd4d
KB		 81static int pqi_ofa_ctrl_restart(struct pqi_ctrl_info *ctrl_info, unsigned int delay_secs);
82static void pqi_ofa_setup_host_buffer(struct pqi_ctrl_info *ctrl_info);
4fd22c13
MR		 83static void pqi_ofa_free_host_buffer(struct pqi_ctrl_info *ctrl_info);
84static int pqi_ofa_host_memory_update(struct pqi_ctrl_info *ctrl_info);
1e46731e 85static int pqi_device_wait_for_pending_io(struct pqi_ctrl_info *ctrl_info,
18ff5f08 86 struct pqi_scsi_dev *device, unsigned long timeout_msecs);
6c223761
KB		 87
88/* for flags argument to pqi_submit_raid_request_synchronous() */
89#define PQI_SYNC_FLAGS_INTERRUPTABLE 0x1
90
91static struct scsi_transport_template *pqi_sas_transport_template;
92
93static atomic_t pqi_controller_count = ATOMIC_INIT(0);
94
3c50976f
KB		 95enum pqi_lockup_action {
96 NONE,
97 REBOOT,
98 PANIC
99};
100
101static enum pqi_lockup_action pqi_lockup_action = NONE;
102
103static struct {
104 enum pqi_lockup_action action;
105 char *name;
106} pqi_lockup_actions[] = {
107 {
108 .action = NONE,
109 .name = "none",
110 },
111 {
112 .action = REBOOT,
113 .name = "reboot",
114 },
115 {
116 .action = PANIC,
117 .name = "panic",
118 },
119};
120
6a50d6ad
KB		 121static unsigned int pqi_supported_event_types[] = {
122 PQI_EVENT_TYPE_HOTPLUG,
123 PQI_EVENT_TYPE_HARDWARE,
124 PQI_EVENT_TYPE_PHYSICAL_DEVICE,
125 PQI_EVENT_TYPE_LOGICAL_DEVICE,
4fd22c13 126 PQI_EVENT_TYPE_OFA,
6a50d6ad
KB		 127 PQI_EVENT_TYPE_AIO_STATE_CHANGE,
128 PQI_EVENT_TYPE_AIO_CONFIG_CHANGE,
129};
130
6c223761
KB		 131static int pqi_disable_device_id_wildcards;
132module_param_named(disable_device_id_wildcards,
cbe0c7b1 133 pqi_disable_device_id_wildcards, int, 0644);
6c223761
KB		 134MODULE_PARM_DESC(disable_device_id_wildcards,
135 "Disable device ID wildcards.");
136
5a259e32
KB		 137static int pqi_disable_heartbeat;
138module_param_named(disable_heartbeat,
139 pqi_disable_heartbeat, int, 0644);
140MODULE_PARM_DESC(disable_heartbeat,
141 "Disable heartbeat.");
142
143static int pqi_disable_ctrl_shutdown;
144module_param_named(disable_ctrl_shutdown,
145 pqi_disable_ctrl_shutdown, int, 0644);
146MODULE_PARM_DESC(disable_ctrl_shutdown,
147 "Disable controller shutdown when controller locked up.");
148
3c50976f
KB		 149static char *pqi_lockup_action_param;
150module_param_named(lockup_action,
151 pqi_lockup_action_param, charp, 0644);
152MODULE_PARM_DESC(lockup_action, "Action to take when controller locked up.\n"
153 "\t\tSupported: none, reboot, panic\n"
154 "\t\tDefault: none");
155
5e6a9760
GW		 156static int pqi_expose_ld_first;
157module_param_named(expose_ld_first,
158 pqi_expose_ld_first, int, 0644);
583891c9 159MODULE_PARM_DESC(expose_ld_first, "Expose logical drives before physical drives.");
5e6a9760 160
522bc026
DC		 161static int pqi_hide_vsep;
162module_param_named(hide_vsep,
163 pqi_hide_vsep, int, 0644);
583891c9 164MODULE_PARM_DESC(hide_vsep, "Hide the virtual SEP for direct attached drives.");
522bc026 165
6c223761
KB		 166static char *raid_levels[] = {
167 "RAID-0",
168 "RAID-4",
169 "RAID-1(1+0)",
170 "RAID-5",
171 "RAID-5+1",
7a012c23
DB		 172 "RAID-6",
173 "RAID-1(Triple)",
6c223761
KB		 174};
175
176static char *pqi_raid_level_to_string(u8 raid_level)
177{
178 if (raid_level < ARRAY_SIZE(raid_levels))
179 return raid_levels[raid_level];
180
a9f93392 181 return "RAID UNKNOWN";
6c223761
KB		 182}
183
184#define SA_RAID_0 0
185#define SA_RAID_4 1
186#define SA_RAID_1 2 /* also used for RAID 10 */
187#define SA_RAID_5 3 /* also used for RAID 50 */
188#define SA_RAID_51 4
189#define SA_RAID_6 5 /* also used for RAID 60 */
7a012c23
DB		 190#define SA_RAID_TRIPLE 6 /* also used for RAID 1+0 Triple */
191#define SA_RAID_MAX SA_RAID_TRIPLE
6c223761
KB		 192#define SA_RAID_UNKNOWN 0xff
193
194static inline void pqi_scsi_done(struct scsi_cmnd *scmd)
195{
7561a7e4 196 pqi_prep_for_scsi_done(scmd);
6c223761
KB		 197 scmd->scsi_done(scmd);
198}
199
b6e2ef67 200static inline void pqi_disable_write_same(struct scsi_device *sdev)
6c223761 201{
b6e2ef67 202 sdev->no_write_same = 1;
6c223761
KB		 203}
204
6c223761 205static inline bool pqi_scsi3addr_equal(u8 *scsi3addr1, u8 *scsi3addr2)
6c223761 206{
6c223761 207 return memcmp(scsi3addr1, scsi3addr2, 8) == 0;
6c223761
KB		 208}
209
210static inline bool pqi_is_logical_device(struct pqi_scsi_dev *device)
211{
212 return !device->is_physical_device;
213}
214
bd10cf0b
KB		 215static inline bool pqi_is_external_raid_addr(u8 *scsi3addr)
216{
217 return scsi3addr[2] != 0;
218}
219
694c5d5b
KB		 220static inline bool pqi_ctrl_offline(struct pqi_ctrl_info *ctrl_info)
221{
222 return !ctrl_info->controller_online;
223}
224
6c223761
KB		 225static inline void pqi_check_ctrl_health(struct pqi_ctrl_info *ctrl_info)
226{
227 if (ctrl_info->controller_online)
228 if (!sis_is_firmware_running(ctrl_info))
229 pqi_take_ctrl_offline(ctrl_info);
230}
231
232static inline bool pqi_is_hba_lunid(u8 *scsi3addr)
233{
234 return pqi_scsi3addr_equal(scsi3addr, RAID_CTLR_LUNID);
235}
236
583891c9 237static inline enum pqi_ctrl_mode pqi_get_ctrl_mode(struct pqi_ctrl_info *ctrl_info)
ff6abb73
KB		 238{
239 return sis_read_driver_scratch(ctrl_info);
240}
241
242static inline void pqi_save_ctrl_mode(struct pqi_ctrl_info *ctrl_info,
243 enum pqi_ctrl_mode mode)
244{
245 sis_write_driver_scratch(ctrl_info, mode);
246}
247
9fa82023
KB		 248static inline void pqi_ctrl_block_scan(struct pqi_ctrl_info *ctrl_info)
249{
250 ctrl_info->scan_blocked = true;
251 mutex_lock(&ctrl_info->scan_mutex);
252}
253
254static inline void pqi_ctrl_unblock_scan(struct pqi_ctrl_info *ctrl_info)
255{
256 ctrl_info->scan_blocked = false;
257 mutex_unlock(&ctrl_info->scan_mutex);
258}
259
260static inline bool pqi_ctrl_scan_blocked(struct pqi_ctrl_info *ctrl_info)
261{
262 return ctrl_info->scan_blocked;
263}
264
694c5d5b
KB		 265static inline void pqi_ctrl_block_device_reset(struct pqi_ctrl_info *ctrl_info)
266{
37f33181 267 mutex_lock(&ctrl_info->lun_reset_mutex);
694c5d5b
KB		 268}
269
37f33181 270static inline void pqi_ctrl_unblock_device_reset(struct pqi_ctrl_info *ctrl_info)
694c5d5b 271{
37f33181 272 mutex_unlock(&ctrl_info->lun_reset_mutex);
694c5d5b
KB		 273}
274
9fa82023
KB		 275static inline void pqi_scsi_block_requests(struct pqi_ctrl_info *ctrl_info)
276{
277 struct Scsi_Host *shost;
278 unsigned int num_loops;
279 int msecs_sleep;
280
281 shost = ctrl_info->scsi_host;
282
283 scsi_block_requests(shost);
284
285 num_loops = 0;
286 msecs_sleep = 20;
287 while (scsi_host_busy(shost)) {
288 num_loops++;
289 if (num_loops == 10)
290 msecs_sleep = 500;
291 msleep(msecs_sleep);
292 }
293}
294
295static inline void pqi_scsi_unblock_requests(struct pqi_ctrl_info *ctrl_info)
296{
297 scsi_unblock_requests(ctrl_info->scsi_host);
298}
299
300static inline void pqi_ctrl_busy(struct pqi_ctrl_info *ctrl_info)
301{
302 atomic_inc(&ctrl_info->num_busy_threads);
694c5d5b
KB		 303}
304
9fa82023 305static inline void pqi_ctrl_unbusy(struct pqi_ctrl_info *ctrl_info)
694c5d5b 306{
9fa82023 307 atomic_dec(&ctrl_info->num_busy_threads);
694c5d5b
KB		 308}
309
310static inline bool pqi_ctrl_blocked(struct pqi_ctrl_info *ctrl_info)
311{
312 return ctrl_info->block_requests;
313}
314
7561a7e4
KB		 315static inline void pqi_ctrl_block_requests(struct pqi_ctrl_info *ctrl_info)
316{
317 ctrl_info->block_requests = true;
7561a7e4
KB		 318}
319
320static inline void pqi_ctrl_unblock_requests(struct pqi_ctrl_info *ctrl_info)
321{
322 ctrl_info->block_requests = false;
323 wake_up_all(&ctrl_info->block_requests_wait);
7561a7e4
KB		 324}
325
ae0c189d 326static void pqi_wait_if_ctrl_blocked(struct pqi_ctrl_info *ctrl_info)
7561a7e4 327{
7561a7e4 328 if (!pqi_ctrl_blocked(ctrl_info))
ae0c189d 329 return;
7561a7e4
KB		 330
331 atomic_inc(&ctrl_info->num_blocked_threads);
ae0c189d
KB		 332 wait_event(ctrl_info->block_requests_wait,
333 !pqi_ctrl_blocked(ctrl_info));
7561a7e4 334 atomic_dec(&ctrl_info->num_blocked_threads);
7561a7e4
KB		 335}
336
18ff5f08
KB		 337#define PQI_QUIESCE_WARNING_TIMEOUT_SECS 10
338
7561a7e4
KB		 339static inline void pqi_ctrl_wait_until_quiesced(struct pqi_ctrl_info *ctrl_info)
340{
18ff5f08
KB		 341 unsigned long start_jiffies;
342 unsigned long warning_timeout;
343 bool displayed_warning;
344
345 displayed_warning = false;
346 start_jiffies = jiffies;
347 warning_timeout = (PQI_QUIESCE_WARNING_TIMEOUT_SECS * PQI_HZ) + start_jiffies;
348
7561a7e4 349 while (atomic_read(&ctrl_info->num_busy_threads) >
18ff5f08
KB		 350 atomic_read(&ctrl_info->num_blocked_threads)) {
351 if (time_after(jiffies, warning_timeout)) {
352 dev_warn(&ctrl_info->pci_dev->dev,
353 "waiting %u seconds for driver activity to quiesce\n",
354 jiffies_to_msecs(jiffies - start_jiffies) / 1000);
355 displayed_warning = true;
356 warning_timeout = (PQI_QUIESCE_WARNING_TIMEOUT_SECS * PQI_HZ) + jiffies;
357 }
7561a7e4 358 usleep_range(1000, 2000);
18ff5f08
KB		 359 }
360
361 if (displayed_warning)
362 dev_warn(&ctrl_info->pci_dev->dev,
363 "driver activity quiesced after waiting for %u seconds\n",
364 jiffies_to_msecs(jiffies - start_jiffies) / 1000);
7561a7e4
KB		 365}
366
03b288cf
KB		 367static inline bool pqi_device_offline(struct pqi_scsi_dev *device)
368{
369 return device->device_offline;
370}
371
2790cd4d 372static inline void pqi_ctrl_ofa_start(struct pqi_ctrl_info *ctrl_info)
7561a7e4 373{
2790cd4d 374 mutex_lock(&ctrl_info->ofa_mutex);
7561a7e4 375}
6c223761 376
2790cd4d 377static inline void pqi_ctrl_ofa_done(struct pqi_ctrl_info *ctrl_info)
4fd22c13 378{
2790cd4d 379 mutex_unlock(&ctrl_info->ofa_mutex);
4fd22c13
MR		 380}
381
2790cd4d 382static inline void pqi_wait_until_ofa_finished(struct pqi_ctrl_info *ctrl_info)
4fd22c13 383{
2790cd4d
KB		 384 mutex_lock(&ctrl_info->ofa_mutex);
385 mutex_unlock(&ctrl_info->ofa_mutex);
4fd22c13
MR		 386}
387
2790cd4d 388static inline bool pqi_ofa_in_progress(struct pqi_ctrl_info *ctrl_info)
4fd22c13 389{
2790cd4d 390 return mutex_is_locked(&ctrl_info->ofa_mutex);
4fd22c13
MR		 391}
392
1e46731e
MR		 393static inline void pqi_device_remove_start(struct pqi_scsi_dev *device)
394{
395 device->in_remove = true;
396}
397
1bdf6e93 398static inline bool pqi_device_in_remove(struct pqi_scsi_dev *device)
1e46731e 399{
1bdf6e93 400 return device->in_remove;
1e46731e
MR		 401}
402
2790cd4d 403static inline int pqi_event_type_to_event_index(unsigned int event_type)
0530736e 404{
2790cd4d
KB		 405 int index;
406
407 for (index = 0; index < ARRAY_SIZE(pqi_supported_event_types); index++)
408 if (event_type == pqi_supported_event_types[index])
409 return index;
410
411 return -1;
0530736e
KB		 412}
413
2790cd4d 414static inline bool pqi_is_supported_event(unsigned int event_type)
0530736e 415{
2790cd4d 416 return pqi_event_type_to_event_index(event_type) != -1;
0530736e
KB		 417}
418
583891c9
KB		 419static inline void pqi_schedule_rescan_worker_with_delay(struct pqi_ctrl_info *ctrl_info,
420 unsigned long delay)
5f310425
KB		 421{
422 if (pqi_ctrl_offline(ctrl_info))
423 return;
424
425 schedule_delayed_work(&ctrl_info->rescan_work, delay);
426}
427
6c223761
KB		 428static inline void pqi_schedule_rescan_worker(struct pqi_ctrl_info *ctrl_info)
429{
5f310425
KB		 430 pqi_schedule_rescan_worker_with_delay(ctrl_info, 0);
431}
432
4fd22c13 433#define PQI_RESCAN_WORK_DELAY (10 * PQI_HZ)
5f310425 434
583891c9 435static inline void pqi_schedule_rescan_worker_delayed(struct pqi_ctrl_info *ctrl_info)
5f310425
KB		 436{
437 pqi_schedule_rescan_worker_with_delay(ctrl_info, PQI_RESCAN_WORK_DELAY);
6c223761
KB		 438}
439
061ef06a
KB		 440static inline void pqi_cancel_rescan_worker(struct pqi_ctrl_info *ctrl_info)
441{
442 cancel_delayed_work_sync(&ctrl_info->rescan_work);
443}
444
98f87667
KB		 445static inline u32 pqi_read_heartbeat_counter(struct pqi_ctrl_info *ctrl_info)
446{
447 if (!ctrl_info->heartbeat_counter)
448 return 0;
449
450 return readl(ctrl_info->heartbeat_counter);
451}
452
4fd22c13
MR		 453static inline u8 pqi_read_soft_reset_status(struct pqi_ctrl_info *ctrl_info)
454{
4fd22c13
MR		 455 return readb(ctrl_info->soft_reset_status);
456}
457
4ccc354b 458static inline void pqi_clear_soft_reset_status(struct pqi_ctrl_info *ctrl_info)
4fd22c13
MR		 459{
460 u8 status;
461
4fd22c13 462 status = pqi_read_soft_reset_status(ctrl_info);
4ccc354b 463 status &= ~PQI_SOFT_RESET_ABORT;
4fd22c13
MR		 464 writeb(status, ctrl_info->soft_reset_status);
465}
466
6c223761
KB		 467static int pqi_map_single(struct pci_dev *pci_dev,
468 struct pqi_sg_descriptor *sg_descriptor, void *buffer,
6917a9cc 469 size_t buffer_length, enum dma_data_direction data_direction)
6c223761
KB		 470{
471 dma_addr_t bus_address;
472
6917a9cc 473 if (!buffer || buffer_length == 0 || data_direction == DMA_NONE)
6c223761
KB		 474 return 0;
475
6917a9cc 476 bus_address = dma_map_single(&pci_dev->dev, buffer, buffer_length,
6c223761 477 data_direction);
6917a9cc 478 if (dma_mapping_error(&pci_dev->dev, bus_address))
6c223761
KB		 479 return -ENOMEM;
480
481 put_unaligned_le64((u64)bus_address, &sg_descriptor->address);
482 put_unaligned_le32(buffer_length, &sg_descriptor->length);
483 put_unaligned_le32(CISS_SG_LAST, &sg_descriptor->flags);
484
485 return 0;
486}
487
488static void pqi_pci_unmap(struct pci_dev *pci_dev,
489 struct pqi_sg_descriptor *descriptors, int num_descriptors,
6917a9cc 490 enum dma_data_direction data_direction)
6c223761
KB		 491{
492 int i;
493
6917a9cc 494 if (data_direction == DMA_NONE)
6c223761
KB		 495 return;
496
497 for (i = 0; i < num_descriptors; i++)
6917a9cc 498 dma_unmap_single(&pci_dev->dev,
6c223761
KB		 499 (dma_addr_t)get_unaligned_le64(&descriptors[i].address),
500 get_unaligned_le32(&descriptors[i].length),
501 data_direction);
502}
503
504static int pqi_build_raid_path_request(struct pqi_ctrl_info *ctrl_info,
505 struct pqi_raid_path_request *request, u8 cmd,
506 u8 *scsi3addr, void *buffer, size_t buffer_length,
6917a9cc 507 u16 vpd_page, enum dma_data_direction *dir)
6c223761
KB		 508{
509 u8 *cdb;
171c2865 510 size_t cdb_length = buffer_length;
6c223761
KB		 511
512 memset(request, 0, sizeof(*request));
513
514 request->header.iu_type = PQI_REQUEST_IU_RAID_PATH_IO;
515 put_unaligned_le16(offsetof(struct pqi_raid_path_request,
516 sg_descriptors[1]) - PQI_REQUEST_HEADER_LENGTH,
517 &request->header.iu_length);
518 put_unaligned_le32(buffer_length, &request->buffer_length);
519 memcpy(request->lun_number, scsi3addr, sizeof(request->lun_number));
520 request->task_attribute = SOP_TASK_ATTRIBUTE_SIMPLE;
521 request->additional_cdb_bytes_usage = SOP_ADDITIONAL_CDB_BYTES_0;
522
523 cdb = request->cdb;
524
525 switch (cmd) {
526 case INQUIRY:
527 request->data_direction = SOP_READ_FLAG;
528 cdb[0] = INQUIRY;
529 if (vpd_page & VPD_PAGE) {
530 cdb[1] = 0x1;
531 cdb[2] = (u8)vpd_page;
532 }
171c2865 533 cdb[4] = (u8)cdb_length;
6c223761
KB		 534 break;
535 case CISS_REPORT_LOG:
536 case CISS_REPORT_PHYS:
537 request->data_direction = SOP_READ_FLAG;
538 cdb[0] = cmd;
539 if (cmd == CISS_REPORT_PHYS)
694c5d5b 540 cdb[1] = CISS_REPORT_PHYS_FLAG_OTHER;
6c223761 541 else
f6cc2a77 542 cdb[1] = ctrl_info->ciss_report_log_flags;
171c2865 543 put_unaligned_be32(cdb_length, &cdb[6]);
6c223761
KB		 544 break;
545 case CISS_GET_RAID_MAP:
546 request->data_direction = SOP_READ_FLAG;
547 cdb[0] = CISS_READ;
548 cdb[1] = CISS_GET_RAID_MAP;
171c2865 549 put_unaligned_be32(cdb_length, &cdb[6]);
6c223761 550 break;
58322fe0 551 case SA_FLUSH_CACHE:
ae0c189d 552 request->header.driver_flags = PQI_DRIVER_NONBLOCKABLE_REQUEST;
6c223761
KB		 553 request->data_direction = SOP_WRITE_FLAG;
554 cdb[0] = BMIC_WRITE;
58322fe0 555 cdb[6] = BMIC_FLUSH_CACHE;
171c2865 556 put_unaligned_be16(cdb_length, &cdb[7]);
6c223761 557 break;
171c2865
DC		 558 case BMIC_SENSE_DIAG_OPTIONS:
559 cdb_length = 0;
df561f66 560 fallthrough;
6c223761
KB		 561 case BMIC_IDENTIFY_CONTROLLER:
562 case BMIC_IDENTIFY_PHYSICAL_DEVICE:
6d90615f 563 case BMIC_SENSE_SUBSYSTEM_INFORMATION:
f6cc2a77 564 case BMIC_SENSE_FEATURE:
6c223761
KB		 565 request->data_direction = SOP_READ_FLAG;
566 cdb[0] = BMIC_READ;
567 cdb[6] = cmd;
171c2865 568 put_unaligned_be16(cdb_length, &cdb[7]);
6c223761 569 break;
171c2865
DC		 570 case BMIC_SET_DIAG_OPTIONS:
571 cdb_length = 0;
df561f66 572 fallthrough;
6c223761
KB		 573 case BMIC_WRITE_HOST_WELLNESS:
574 request->data_direction = SOP_WRITE_FLAG;
575 cdb[0] = BMIC_WRITE;
576 cdb[6] = cmd;
171c2865 577 put_unaligned_be16(cdb_length, &cdb[7]);
6c223761 578 break;
3d46a59a
DB		 579 case BMIC_CSMI_PASSTHRU:
580 request->data_direction = SOP_BIDIRECTIONAL;
581 cdb[0] = BMIC_WRITE;
582 cdb[5] = CSMI_CC_SAS_SMP_PASSTHRU;
583 cdb[6] = cmd;
584 put_unaligned_be16(cdb_length, &cdb[7]);
6c223761
KB		 585 break;
586 default:
9e68cccc 587 dev_err(&ctrl_info->pci_dev->dev, "unknown command 0x%c\n", cmd);
6c223761
KB		 588 break;
589 }
590
591 switch (request->data_direction) {
592 case SOP_READ_FLAG:
6917a9cc 593 *dir = DMA_FROM_DEVICE;
6c223761
KB		 594 break;
595 case SOP_WRITE_FLAG:
6917a9cc 596 *dir = DMA_TO_DEVICE;
6c223761
KB		 597 break;
598 case SOP_NO_DIRECTION_FLAG:
6917a9cc 599 *dir = DMA_NONE;
6c223761
KB		 600 break;
601 default:
6917a9cc 602 *dir = DMA_BIDIRECTIONAL;
6c223761
KB		 603 break;
604 }
605
6c223761 606 return pqi_map_single(ctrl_info->pci_dev, &request->sg_descriptors[0],
6917a9cc 607 buffer, buffer_length, *dir);
6c223761
KB		 608}
609
376fb880
KB		 610static inline void pqi_reinit_io_request(struct pqi_io_request *io_request)
611{
612 io_request->scmd = NULL;
613 io_request->status = 0;
614 io_request->error_info = NULL;
615 io_request->raid_bypass = false;
616}
617
6c223761
KB		 618static struct pqi_io_request *pqi_alloc_io_request(
619 struct pqi_ctrl_info *ctrl_info)
620{
621 struct pqi_io_request *io_request;
622 u16 i = ctrl_info->next_io_request_slot; /* benignly racy */
623
624 while (1) {
625 io_request = &ctrl_info->io_request_pool[i];
626 if (atomic_inc_return(&io_request->refcount) == 1)
627 break;
628 atomic_dec(&io_request->refcount);
629 i = (i + 1) % ctrl_info->max_io_slots;
630 }
631
632 /* benignly racy */
633 ctrl_info->next_io_request_slot = (i + 1) % ctrl_info->max_io_slots;
634
376fb880 635 pqi_reinit_io_request(io_request);
6c223761
KB		 636
637 return io_request;
638}
639
640static void pqi_free_io_request(struct pqi_io_request *io_request)
641{
642 atomic_dec(&io_request->refcount);
643}
644
02133b68 645static int pqi_send_scsi_raid_request(struct pqi_ctrl_info *ctrl_info, u8 cmd,
694c5d5b 646 u8 *scsi3addr, void *buffer, size_t buffer_length, u16 vpd_page,
ae0c189d 647 struct pqi_raid_error_info *error_info)
6c223761
KB		 648{
649 int rc;
6c223761 650 struct pqi_raid_path_request request;
694c5d5b 651 enum dma_data_direction dir;
6c223761 652
583891c9
KB		 653 rc = pqi_build_raid_path_request(ctrl_info, &request, cmd, scsi3addr,
654 buffer, buffer_length, vpd_page, &dir);
6c223761
KB		 655 if (rc)
656 return rc;
657
ae0c189d 658 rc = pqi_submit_raid_request_synchronous(ctrl_info, &request.header, 0, error_info);
6c223761 659
6917a9cc 660 pqi_pci_unmap(ctrl_info->pci_dev, request.sg_descriptors, 1, dir);
694c5d5b 661
6c223761
KB		 662 return rc;
663}
664
694c5d5b 665/* helper functions for pqi_send_scsi_raid_request */
02133b68
DC		 666
667static inline int pqi_send_ctrl_raid_request(struct pqi_ctrl_info *ctrl_info,
694c5d5b 668 u8 cmd, void *buffer, size_t buffer_length)
6c223761 669{
02133b68 670 return pqi_send_scsi_raid_request(ctrl_info, cmd, RAID_CTLR_LUNID,
ae0c189d 671 buffer, buffer_length, 0, NULL);
02133b68 672}
6c223761 673
02133b68 674static inline int pqi_send_ctrl_raid_with_error(struct pqi_ctrl_info *ctrl_info,
694c5d5b
KB		 675 u8 cmd, void *buffer, size_t buffer_length,
676 struct pqi_raid_error_info *error_info)
02133b68
DC		 677{
678 return pqi_send_scsi_raid_request(ctrl_info, cmd, RAID_CTLR_LUNID,
ae0c189d 679 buffer, buffer_length, 0, error_info);
02133b68 680}
6c223761 681
02133b68 682static inline int pqi_identify_controller(struct pqi_ctrl_info *ctrl_info,
694c5d5b 683 struct bmic_identify_controller *buffer)
02133b68
DC		 684{
685 return pqi_send_ctrl_raid_request(ctrl_info, BMIC_IDENTIFY_CONTROLLER,
694c5d5b 686 buffer, sizeof(*buffer));
02133b68
DC		 687}
688
6d90615f 689static inline int pqi_sense_subsystem_info(struct pqi_ctrl_info *ctrl_info,
694c5d5b 690 struct bmic_sense_subsystem_info *sense_info)
6d90615f
MB		 691{
692 return pqi_send_ctrl_raid_request(ctrl_info,
694c5d5b
KB		 693 BMIC_SENSE_SUBSYSTEM_INFORMATION, sense_info,
694 sizeof(*sense_info));
6d90615f
MB		 695}
696
02133b68 697static inline int pqi_scsi_inquiry(struct pqi_ctrl_info *ctrl_info,
6c223761 698 u8 *scsi3addr, u16 vpd_page, void *buffer, size_t buffer_length)
02133b68
DC		 699{
700 return pqi_send_scsi_raid_request(ctrl_info, INQUIRY, scsi3addr,
ae0c189d 701 buffer, buffer_length, vpd_page, NULL);
6c223761
KB		 702}
703
704static int pqi_identify_physical_device(struct pqi_ctrl_info *ctrl_info,
705 struct pqi_scsi_dev *device,
694c5d5b 706 struct bmic_identify_physical_device *buffer, size_t buffer_length)
6c223761
KB		 707{
708 int rc;
6917a9cc 709 enum dma_data_direction dir;
6c223761
KB		 710 u16 bmic_device_index;
711 struct pqi_raid_path_request request;
712
713 rc = pqi_build_raid_path_request(ctrl_info, &request,
714 BMIC_IDENTIFY_PHYSICAL_DEVICE, RAID_CTLR_LUNID, buffer,
6917a9cc 715 buffer_length, 0, &dir);
6c223761
KB		 716 if (rc)
717 return rc;
718
719 bmic_device_index = CISS_GET_DRIVE_NUMBER(device->scsi3addr);
720 request.cdb[2] = (u8)bmic_device_index;
721 request.cdb[9] = (u8)(bmic_device_index >> 8);
722
ae0c189d 723 rc = pqi_submit_raid_request_synchronous(ctrl_info, &request.header, 0, NULL);
6c223761 724
6917a9cc 725 pqi_pci_unmap(ctrl_info->pci_dev, request.sg_descriptors, 1, dir);
694c5d5b 726
6c223761
KB		 727 return rc;
728}
729
f6cc2a77
KB		 730static inline u32 pqi_aio_limit_to_bytes(__le16 *limit)
731{
732 u32 bytes;
733
734 bytes = get_unaligned_le16(limit);
735 if (bytes == 0)
736 bytes = ~0;
737 else
738 bytes *= 1024;
739
740 return bytes;
741}
742
743#pragma pack(1)
744
745struct bmic_sense_feature_buffer {
746 struct bmic_sense_feature_buffer_header header;
747 struct bmic_sense_feature_io_page_aio_subpage aio_subpage;
748};
749
750#pragma pack()
751
752#define MINIMUM_AIO_SUBPAGE_BUFFER_LENGTH \
753 offsetofend(struct bmic_sense_feature_buffer, \
754 aio_subpage.max_write_raid_1_10_3drive)
755
756#define MINIMUM_AIO_SUBPAGE_LENGTH \
757 (offsetofend(struct bmic_sense_feature_io_page_aio_subpage, \
758 max_write_raid_1_10_3drive) - \
759 sizeof_field(struct bmic_sense_feature_io_page_aio_subpage, header))
760
761static int pqi_get_advanced_raid_bypass_config(struct pqi_ctrl_info *ctrl_info)
762{
763 int rc;
764 enum dma_data_direction dir;
765 struct pqi_raid_path_request request;
766 struct bmic_sense_feature_buffer *buffer;
767
768 buffer = kmalloc(sizeof(*buffer), GFP_KERNEL);
769 if (!buffer)
770 return -ENOMEM;
771
583891c9
KB		 772 rc = pqi_build_raid_path_request(ctrl_info, &request, BMIC_SENSE_FEATURE, RAID_CTLR_LUNID,
773 buffer, sizeof(*buffer), 0, &dir);
f6cc2a77
KB		 774 if (rc)
775 goto error;
776
777 request.cdb[2] = BMIC_SENSE_FEATURE_IO_PAGE;
778 request.cdb[3] = BMIC_SENSE_FEATURE_IO_PAGE_AIO_SUBPAGE;
779
ae0c189d 780 rc = pqi_submit_raid_request_synchronous(ctrl_info, &request.header, 0, NULL);
6c223761 781
6917a9cc 782 pqi_pci_unmap(ctrl_info->pci_dev, request.sg_descriptors, 1, dir);
694c5d5b 783
f6cc2a77
KB		 784 if (rc)
785 goto error;
786
787 if (buffer->header.page_code != BMIC_SENSE_FEATURE_IO_PAGE ||
788 buffer->header.subpage_code !=
789 BMIC_SENSE_FEATURE_IO_PAGE_AIO_SUBPAGE ||
790 get_unaligned_le16(&buffer->header.buffer_length) <
791 MINIMUM_AIO_SUBPAGE_BUFFER_LENGTH ||
792 buffer->aio_subpage.header.page_code !=
793 BMIC_SENSE_FEATURE_IO_PAGE ||
794 buffer->aio_subpage.header.subpage_code !=
795 BMIC_SENSE_FEATURE_IO_PAGE_AIO_SUBPAGE ||
796 get_unaligned_le16(&buffer->aio_subpage.header.page_length) <
797 MINIMUM_AIO_SUBPAGE_LENGTH) {
798 goto error;
799 }
800
801 ctrl_info->max_transfer_encrypted_sas_sata =
802 pqi_aio_limit_to_bytes(
803 &buffer->aio_subpage.max_transfer_encrypted_sas_sata);
804
805 ctrl_info->max_transfer_encrypted_nvme =
806 pqi_aio_limit_to_bytes(
807 &buffer->aio_subpage.max_transfer_encrypted_nvme);
808
809 ctrl_info->max_write_raid_5_6 =
810 pqi_aio_limit_to_bytes(
811 &buffer->aio_subpage.max_write_raid_5_6);
812
813 ctrl_info->max_write_raid_1_10_2drive =
814 pqi_aio_limit_to_bytes(
815 &buffer->aio_subpage.max_write_raid_1_10_2drive);
816
817 ctrl_info->max_write_raid_1_10_3drive =
818 pqi_aio_limit_to_bytes(
819 &buffer->aio_subpage.max_write_raid_1_10_3drive);
820
821error:
822 kfree(buffer);
823
6c223761
KB		 824 return rc;
825}
826
58322fe0
KB		 827static int pqi_flush_cache(struct pqi_ctrl_info *ctrl_info,
828 enum bmic_flush_cache_shutdown_event shutdown_event)
6c223761
KB		 829{
830 int rc;
58322fe0 831 struct bmic_flush_cache *flush_cache;
6c223761 832
58322fe0
KB		 833 flush_cache = kzalloc(sizeof(*flush_cache), GFP_KERNEL);
834 if (!flush_cache)
6c223761
KB		 835 return -ENOMEM;
836
58322fe0
KB		 837 flush_cache->shutdown_event = shutdown_event;
838
02133b68
DC		 839 rc = pqi_send_ctrl_raid_request(ctrl_info, SA_FLUSH_CACHE, flush_cache,
840 sizeof(*flush_cache));
6c223761 841
58322fe0 842 kfree(flush_cache);
6c223761
KB		 843
844 return rc;
845}
846
3d46a59a
DB		 847int pqi_csmi_smp_passthru(struct pqi_ctrl_info *ctrl_info,
848 struct bmic_csmi_smp_passthru_buffer *buffer, size_t buffer_length,
849 struct pqi_raid_error_info *error_info)
850{
851 return pqi_send_ctrl_raid_with_error(ctrl_info, BMIC_CSMI_PASSTHRU,
852 buffer, buffer_length, error_info);
853}
171c2865 854
694c5d5b 855#define PQI_FETCH_PTRAID_DATA (1 << 31)
171c2865
DC		 856
857static int pqi_set_diag_rescan(struct pqi_ctrl_info *ctrl_info)
6c223761
KB		 858{
859 int rc;
171c2865 860 struct bmic_diag_options *diag;
6c223761 861
171c2865
DC		 862 diag = kzalloc(sizeof(*diag), GFP_KERNEL);
863 if (!diag)
864 return -ENOMEM;
865
02133b68 866 rc = pqi_send_ctrl_raid_request(ctrl_info, BMIC_SENSE_DIAG_OPTIONS,
694c5d5b 867 diag, sizeof(*diag));
6c223761 868 if (rc)
171c2865 869 goto out;
6c223761 870
171c2865
DC		 871 diag->options |= cpu_to_le32(PQI_FETCH_PTRAID_DATA);
872
694c5d5b
KB		 873 rc = pqi_send_ctrl_raid_request(ctrl_info, BMIC_SET_DIAG_OPTIONS, diag,
874 sizeof(*diag));
875
171c2865
DC		 876out:
877 kfree(diag);
6c223761 878
6c223761
KB		 879 return rc;
880}
881
02133b68 882static inline int pqi_write_host_wellness(struct pqi_ctrl_info *ctrl_info,
6c223761
KB		 883 void *buffer, size_t buffer_length)
884{
02133b68 885 return pqi_send_ctrl_raid_request(ctrl_info, BMIC_WRITE_HOST_WELLNESS,
694c5d5b 886 buffer, buffer_length);
6c223761
KB		 887}
888
889#pragma pack(1)
890
891struct bmic_host_wellness_driver_version {
892 u8 start_tag[4];
893 u8 driver_version_tag[2];
894 __le16 driver_version_length;
895 char driver_version[32];
b2346b50 896 u8 dont_write_tag[2];
6c223761
KB		 897 u8 end_tag[2];
898};
899
900#pragma pack()
901
902static int pqi_write_driver_version_to_host_wellness(
903 struct pqi_ctrl_info *ctrl_info)
904{
905 int rc;
906 struct bmic_host_wellness_driver_version *buffer;
907 size_t buffer_length;
908
909 buffer_length = sizeof(*buffer);
910
911 buffer = kmalloc(buffer_length, GFP_KERNEL);
912 if (!buffer)
913 return -ENOMEM;
914
915 buffer->start_tag[0] = '<';
916 buffer->start_tag[1] = 'H';
917 buffer->start_tag[2] = 'W';
918 buffer->start_tag[3] = '>';
919 buffer->driver_version_tag[0] = 'D';
920 buffer->driver_version_tag[1] = 'V';
921 put_unaligned_le16(sizeof(buffer->driver_version),
922 &buffer->driver_version_length);
061ef06a 923 strncpy(buffer->driver_version, "Linux " DRIVER_VERSION,
6c223761
KB		 924 sizeof(buffer->driver_version) - 1);
925 buffer->driver_version[sizeof(buffer->driver_version) - 1] = '\0';
b2346b50
MR		 926 buffer->dont_write_tag[0] = 'D';
927 buffer->dont_write_tag[1] = 'W';
6c223761
KB		 928 buffer->end_tag[0] = 'Z';
929 buffer->end_tag[1] = 'Z';
930
931 rc = pqi_write_host_wellness(ctrl_info, buffer, buffer_length);
932
933 kfree(buffer);
934
935 return rc;
936}
937
938#pragma pack(1)
939
940struct bmic_host_wellness_time {
941 u8 start_tag[4];
942 u8 time_tag[2];
943 __le16 time_length;
944 u8 time[8];
945 u8 dont_write_tag[2];
946 u8 end_tag[2];
947};
948
949#pragma pack()
950
951static int pqi_write_current_time_to_host_wellness(
952 struct pqi_ctrl_info *ctrl_info)
953{
954 int rc;
955 struct bmic_host_wellness_time *buffer;
956 size_t buffer_length;
957 time64_t local_time;
958 unsigned int year;
ed10858e 959 struct tm tm;
6c223761
KB		 960
961 buffer_length = sizeof(*buffer);
962
963 buffer = kmalloc(buffer_length, GFP_KERNEL);
964 if (!buffer)
965 return -ENOMEM;
966
967 buffer->start_tag[0] = '<';
968 buffer->start_tag[1] = 'H';
969 buffer->start_tag[2] = 'W';
970 buffer->start_tag[3] = '>';
971 buffer->time_tag[0] = 'T';
972 buffer->time_tag[1] = 'D';
973 put_unaligned_le16(sizeof(buffer->time),
974 &buffer->time_length);
975
ed10858e
AB		 976 local_time = ktime_get_real_seconds();
977 time64_to_tm(local_time, -sys_tz.tz_minuteswest * 60, &tm);
6c223761
KB		 978 year = tm.tm_year + 1900;
979
980 buffer->time[0] = bin2bcd(tm.tm_hour);
981 buffer->time[1] = bin2bcd(tm.tm_min);
982 buffer->time[2] = bin2bcd(tm.tm_sec);
983 buffer->time[3] = 0;
984 buffer->time[4] = bin2bcd(tm.tm_mon + 1);
985 buffer->time[5] = bin2bcd(tm.tm_mday);
986 buffer->time[6] = bin2bcd(year / 100);
987 buffer->time[7] = bin2bcd(year % 100);
988
989 buffer->dont_write_tag[0] = 'D';
990 buffer->dont_write_tag[1] = 'W';
991 buffer->end_tag[0] = 'Z';
992 buffer->end_tag[1] = 'Z';
993
994 rc = pqi_write_host_wellness(ctrl_info, buffer, buffer_length);
995
996 kfree(buffer);
997
998 return rc;
999}
1000
4fd22c13 1001#define PQI_UPDATE_TIME_WORK_INTERVAL (24UL * 60 * 60 * PQI_HZ)
6c223761
KB		 1002
1003static void pqi_update_time_worker(struct work_struct *work)
1004{
1005 int rc;
1006 struct pqi_ctrl_info *ctrl_info;
1007
1008 ctrl_info = container_of(to_delayed_work(work), struct pqi_ctrl_info,
1009 update_time_work);
1010
6c223761
KB		 1011 rc = pqi_write_current_time_to_host_wellness(ctrl_info);
1012 if (rc)
1013 dev_warn(&ctrl_info->pci_dev->dev,
1014 "error updating time on controller\n");
1015
1016 schedule_delayed_work(&ctrl_info->update_time_work,
1017 PQI_UPDATE_TIME_WORK_INTERVAL);
1018}
1019
583891c9 1020static inline void pqi_schedule_update_time_worker(struct pqi_ctrl_info *ctrl_info)
6c223761 1021{
4fbebf1a 1022 schedule_delayed_work(&ctrl_info->update_time_work, 0);
061ef06a
KB		 1023}
1024
583891c9 1025static inline void pqi_cancel_update_time_worker(struct pqi_ctrl_info *ctrl_info)
061ef06a 1026{
061ef06a 1027 cancel_delayed_work_sync(&ctrl_info->update_time_work);
6c223761
KB		 1028}
1029
583891c9
KB		 1030static inline int pqi_report_luns(struct pqi_ctrl_info *ctrl_info, u8 cmd, void *buffer,
1031 size_t buffer_length)
6c223761 1032{
583891c9 1033 return pqi_send_ctrl_raid_request(ctrl_info, cmd, buffer, buffer_length);
6c223761
KB		 1034}
1035
583891c9 1036static int pqi_report_phys_logical_luns(struct pqi_ctrl_info *ctrl_info, u8 cmd, void **buffer)
6c223761
KB		 1037{
1038 int rc;
1039 size_t lun_list_length;
1040 size_t lun_data_length;
1041 size_t new_lun_list_length;
1042 void *lun_data = NULL;
1043 struct report_lun_header *report_lun_header;
1044
1045 report_lun_header = kmalloc(sizeof(*report_lun_header), GFP_KERNEL);
1046 if (!report_lun_header) {
1047 rc = -ENOMEM;
1048 goto out;
1049 }
1050
583891c9 1051 rc = pqi_report_luns(ctrl_info, cmd, report_lun_header, sizeof(*report_lun_header));
6c223761
KB		 1052 if (rc)
1053 goto out;
1054
1055 lun_list_length = get_unaligned_be32(&report_lun_header->list_length);
1056
1057again:
1058 lun_data_length = sizeof(struct report_lun_header) + lun_list_length;
1059
1060 lun_data = kmalloc(lun_data_length, GFP_KERNEL);
1061 if (!lun_data) {
1062 rc = -ENOMEM;
1063 goto out;
1064 }
1065
1066 if (lun_list_length == 0) {
1067 memcpy(lun_data, report_lun_header, sizeof(*report_lun_header));
1068 goto out;
1069 }
1070
1071 rc = pqi_report_luns(ctrl_info, cmd, lun_data, lun_data_length);
1072 if (rc)
1073 goto out;
1074
583891c9
KB		 1075 new_lun_list_length =
1076 get_unaligned_be32(&((struct report_lun_header *)lun_data)->list_length);
6c223761
KB		 1077
1078 if (new_lun_list_length > lun_list_length) {
1079 lun_list_length = new_lun_list_length;
1080 kfree(lun_data);
1081 goto again;
1082 }
1083
1084out:
1085 kfree(report_lun_header);
1086
1087 if (rc) {
1088 kfree(lun_data);
1089 lun_data = NULL;
1090 }
1091
1092 *buffer = lun_data;
1093
1094 return rc;
1095}
1096
583891c9 1097static inline int pqi_report_phys_luns(struct pqi_ctrl_info *ctrl_info, void **buffer)
6c223761 1098{
583891c9 1099 return pqi_report_phys_logical_luns(ctrl_info, CISS_REPORT_PHYS, buffer);
6c223761
KB		 1100}
1101
583891c9 1102static inline int pqi_report_logical_luns(struct pqi_ctrl_info *ctrl_info, void **buffer)
6c223761
KB		 1103{
1104 return pqi_report_phys_logical_luns(ctrl_info, CISS_REPORT_LOG, buffer);
1105}
1106
1107static int pqi_get_device_lists(struct pqi_ctrl_info *ctrl_info,
1108 struct report_phys_lun_extended **physdev_list,
1109 struct report_log_lun_extended **logdev_list)
1110{
1111 int rc;
1112 size_t logdev_list_length;
1113 size_t logdev_data_length;
1114 struct report_log_lun_extended *internal_logdev_list;
1115 struct report_log_lun_extended *logdev_data;
1116 struct report_lun_header report_lun_header;
1117
1118 rc = pqi_report_phys_luns(ctrl_info, (void **)physdev_list);
1119 if (rc)
1120 dev_err(&ctrl_info->pci_dev->dev,
1121 "report physical LUNs failed\n");
1122
1123 rc = pqi_report_logical_luns(ctrl_info, (void **)logdev_list);
1124 if (rc)
1125 dev_err(&ctrl_info->pci_dev->dev,
1126 "report logical LUNs failed\n");
1127
1128 /*
1129 * Tack the controller itself onto the end of the logical device list.
1130 */
1131
1132 logdev_data = *logdev_list;
1133
1134 if (logdev_data) {
1135 logdev_list_length =
1136 get_unaligned_be32(&logdev_data->header.list_length);
1137 } else {
1138 memset(&report_lun_header, 0, sizeof(report_lun_header));
1139 logdev_data =
1140 (struct report_log_lun_extended *)&report_lun_header;
1141 logdev_list_length = 0;
1142 }
1143
1144 logdev_data_length = sizeof(struct report_lun_header) +
1145 logdev_list_length;
1146
1147 internal_logdev_list = kmalloc(logdev_data_length +
1148 sizeof(struct report_log_lun_extended), GFP_KERNEL);
1149 if (!internal_logdev_list) {
1150 kfree(*logdev_list);
1151 *logdev_list = NULL;
1152 return -ENOMEM;
1153 }
1154
1155 memcpy(internal_logdev_list, logdev_data, logdev_data_length);
1156 memset((u8 *)internal_logdev_list + logdev_data_length, 0,
1157 sizeof(struct report_log_lun_extended_entry));
1158 put_unaligned_be32(logdev_list_length +
1159 sizeof(struct report_log_lun_extended_entry),
1160 &internal_logdev_list->header.list_length);
1161
1162 kfree(*logdev_list);
1163 *logdev_list = internal_logdev_list;
1164
1165 return 0;
1166}
1167
1168static inline void pqi_set_bus_target_lun(struct pqi_scsi_dev *device,
1169 int bus, int target, int lun)
1170{
1171 device->bus = bus;
1172 device->target = target;
1173 device->lun = lun;
1174}
1175
1176static void pqi_assign_bus_target_lun(struct pqi_scsi_dev *device)
1177{
1178 u8 *scsi3addr;
1179 u32 lunid;
bd10cf0b
KB		 1180 int bus;
1181 int target;
1182 int lun;
6c223761
KB		 1183
1184 scsi3addr = device->scsi3addr;
1185 lunid = get_unaligned_le32(scsi3addr);
1186
1187 if (pqi_is_hba_lunid(scsi3addr)) {
1188 /* The specified device is the controller. */
1189 pqi_set_bus_target_lun(device, PQI_HBA_BUS, 0, lunid & 0x3fff);
1190 device->target_lun_valid = true;
1191 return;
1192 }
1193
1194 if (pqi_is_logical_device(device)) {
bd10cf0b
KB		 1195 if (device->is_external_raid_device) {
1196 bus = PQI_EXTERNAL_RAID_VOLUME_BUS;
1197 target = (lunid >> 16) & 0x3fff;
1198 lun = lunid & 0xff;
1199 } else {
1200 bus = PQI_RAID_VOLUME_BUS;
1201 target = 0;
1202 lun = lunid & 0x3fff;
1203 }
1204 pqi_set_bus_target_lun(device, bus, target, lun);
6c223761
KB		 1205 device->target_lun_valid = true;
1206 return;
1207 }
1208
1209 /*
1210 * Defer target and LUN assignment for non-controller physical devices
1211 * because the SAS transport layer will make these assignments later.
1212 */
1213 pqi_set_bus_target_lun(device, PQI_PHYSICAL_DEVICE_BUS, 0, 0);
1214}
1215
1216static void pqi_get_raid_level(struct pqi_ctrl_info *ctrl_info,
1217 struct pqi_scsi_dev *device)
1218{
1219 int rc;
1220 u8 raid_level;
1221 u8 *buffer;
1222
1223 raid_level = SA_RAID_UNKNOWN;
1224
1225 buffer = kmalloc(64, GFP_KERNEL);
1226 if (buffer) {
1227 rc = pqi_scsi_inquiry(ctrl_info, device->scsi3addr,
1228 VPD_PAGE | CISS_VPD_LV_DEVICE_GEOMETRY, buffer, 64);
1229 if (rc == 0) {
1230 raid_level = buffer[8];
1231 if (raid_level > SA_RAID_MAX)
1232 raid_level = SA_RAID_UNKNOWN;
1233 }
1234 kfree(buffer);
1235 }
1236
1237 device->raid_level = raid_level;
1238}
1239
1240static int pqi_validate_raid_map(struct pqi_ctrl_info *ctrl_info,
1241 struct pqi_scsi_dev *device, struct raid_map *raid_map)
1242{
1243 char *err_msg;
1244 u32 raid_map_size;
1245 u32 r5or6_blocks_per_row;
6c223761
KB		 1246
1247 raid_map_size = get_unaligned_le32(&raid_map->structure_size);
1248
1249 if (raid_map_size < offsetof(struct raid_map, disk_data)) {
1250 err_msg = "RAID map too small";
1251 goto bad_raid_map;
1252 }
1253
6c223761
KB		 1254 if (device->raid_level == SA_RAID_1) {
1255 if (get_unaligned_le16(&raid_map->layout_map_count) != 2) {
1256 err_msg = "invalid RAID-1 map";
1257 goto bad_raid_map;
1258 }
7a012c23 1259 } else if (device->raid_level == SA_RAID_TRIPLE) {
6c223761 1260 if (get_unaligned_le16(&raid_map->layout_map_count) != 3) {
7a012c23 1261 err_msg = "invalid RAID-1(Triple) map";
6c223761
KB		 1262 goto bad_raid_map;
1263 }
1264 } else if ((device->raid_level == SA_RAID_5 ||
1265 device->raid_level == SA_RAID_6) &&
1266 get_unaligned_le16(&raid_map->layout_map_count) > 1) {
1267 /* RAID 50/60 */
1268 r5or6_blocks_per_row =
1269 get_unaligned_le16(&raid_map->strip_size) *
1270 get_unaligned_le16(&raid_map->data_disks_per_row);
1271 if (r5or6_blocks_per_row == 0) {
1272 err_msg = "invalid RAID-5 or RAID-6 map";
1273 goto bad_raid_map;
1274 }
1275 }
1276
1277 return 0;
1278
1279bad_raid_map:
d87d5474 1280 dev_warn(&ctrl_info->pci_dev->dev,
38a7338a
KB		 1281 "logical device %08x%08x %s\n",
1282 *((u32 *)&device->scsi3addr),
1283 *((u32 *)&device->scsi3addr[4]), err_msg);
6c223761
KB		 1284
1285 return -EINVAL;
1286}
1287
1288static int pqi_get_raid_map(struct pqi_ctrl_info *ctrl_info,
1289 struct pqi_scsi_dev *device)
1290{
1291 int rc;
a91aaae0 1292 u32 raid_map_size;
6c223761
KB		 1293 struct raid_map *raid_map;
1294
1295 raid_map = kmalloc(sizeof(*raid_map), GFP_KERNEL);
1296 if (!raid_map)
1297 return -ENOMEM;
1298
a91aaae0 1299 rc = pqi_send_scsi_raid_request(ctrl_info, CISS_GET_RAID_MAP,
ae0c189d 1300 device->scsi3addr, raid_map, sizeof(*raid_map), 0, NULL);
6c223761
KB		 1301 if (rc)
1302 goto error;
1303
a91aaae0 1304 raid_map_size = get_unaligned_le32(&raid_map->structure_size);
6c223761 1305
a91aaae0 1306 if (raid_map_size > sizeof(*raid_map)) {
6c223761 1307
a91aaae0
AK		 1308 kfree(raid_map);
1309
1310 raid_map = kmalloc(raid_map_size, GFP_KERNEL);
1311 if (!raid_map)
1312 return -ENOMEM;
1313
1314 rc = pqi_send_scsi_raid_request(ctrl_info, CISS_GET_RAID_MAP,
ae0c189d 1315 device->scsi3addr, raid_map, raid_map_size, 0, NULL);
a91aaae0
AK		 1316 if (rc)
1317 goto error;
1318
1319 if (get_unaligned_le32(&raid_map->structure_size)
1320 != raid_map_size) {
1321 dev_warn(&ctrl_info->pci_dev->dev,
583891c9 1322 "requested %u bytes, received %u bytes\n",
a91aaae0
AK		 1323 raid_map_size,
1324 get_unaligned_le32(&raid_map->structure_size));
d1f6581a 1325 rc = -EINVAL;
a91aaae0
AK		 1326 goto error;
1327 }
1328 }
6c223761
KB		 1329
1330 rc = pqi_validate_raid_map(ctrl_info, device, raid_map);
1331 if (rc)
1332 goto error;
1333
1334 device->raid_map = raid_map;
1335
1336 return 0;
1337
1338error:
1339 kfree(raid_map);
1340
1341 return rc;
1342}
1343
f6cc2a77
KB		 1344static void pqi_set_max_transfer_encrypted(struct pqi_ctrl_info *ctrl_info,
1345 struct pqi_scsi_dev *device)
1346{
1347 if (!ctrl_info->lv_drive_type_mix_valid) {
1348 device->max_transfer_encrypted = ~0;
1349 return;
1350 }
1351
1352 switch (LV_GET_DRIVE_TYPE_MIX(device->scsi3addr)) {
1353 case LV_DRIVE_TYPE_MIX_SAS_HDD_ONLY:
1354 case LV_DRIVE_TYPE_MIX_SATA_HDD_ONLY:
1355 case LV_DRIVE_TYPE_MIX_SAS_OR_SATA_SSD_ONLY:
1356 case LV_DRIVE_TYPE_MIX_SAS_SSD_ONLY:
1357 case LV_DRIVE_TYPE_MIX_SATA_SSD_ONLY:
1358 case LV_DRIVE_TYPE_MIX_SAS_ONLY:
1359 case LV_DRIVE_TYPE_MIX_SATA_ONLY:
1360 device->max_transfer_encrypted =
1361 ctrl_info->max_transfer_encrypted_sas_sata;
1362 break;
1363 case LV_DRIVE_TYPE_MIX_NVME_ONLY:
1364 device->max_transfer_encrypted =
1365 ctrl_info->max_transfer_encrypted_nvme;
1366 break;
1367 case LV_DRIVE_TYPE_MIX_UNKNOWN:
1368 case LV_DRIVE_TYPE_MIX_NO_RESTRICTION:
1369 default:
1370 device->max_transfer_encrypted =
1371 min(ctrl_info->max_transfer_encrypted_sas_sata,
1372 ctrl_info->max_transfer_encrypted_nvme);
1373 break;
1374 }
1375}
1376
588a63fe 1377static void pqi_get_raid_bypass_status(struct pqi_ctrl_info *ctrl_info,
6c223761
KB		 1378 struct pqi_scsi_dev *device)
1379{
1380 int rc;
1381 u8 *buffer;
588a63fe 1382 u8 bypass_status;
6c223761
KB		 1383
1384 buffer = kmalloc(64, GFP_KERNEL);
1385 if (!buffer)
1386 return;
1387
1388 rc = pqi_scsi_inquiry(ctrl_info, device->scsi3addr,
588a63fe 1389 VPD_PAGE | CISS_VPD_LV_BYPASS_STATUS, buffer, 64);
6c223761
KB		 1390 if (rc)
1391 goto out;
1392
694c5d5b
KB		 1393#define RAID_BYPASS_STATUS 4
1394#define RAID_BYPASS_CONFIGURED 0x1
1395#define RAID_BYPASS_ENABLED 0x2
6c223761 1396
588a63fe
KB		 1397 bypass_status = buffer[RAID_BYPASS_STATUS];
1398 device->raid_bypass_configured =
1399 (bypass_status & RAID_BYPASS_CONFIGURED) != 0;
1400 if (device->raid_bypass_configured &&
1401 (bypass_status & RAID_BYPASS_ENABLED) &&
f6cc2a77 1402 pqi_get_raid_map(ctrl_info, device) == 0) {
588a63fe 1403 device->raid_bypass_enabled = true;
f6cc2a77
KB		 1404 if (get_unaligned_le16(&device->raid_map->flags) &
1405 RAID_MAP_ENCRYPTION_ENABLED)
1406 pqi_set_max_transfer_encrypted(ctrl_info, device);
1407 }
6c223761
KB		 1408
1409out:
1410 kfree(buffer);
1411}
1412
1413/*
1414 * Use vendor-specific VPD to determine online/offline status of a volume.
1415 */
1416
1417static void pqi_get_volume_status(struct pqi_ctrl_info *ctrl_info,
1418 struct pqi_scsi_dev *device)
1419{
1420 int rc;
1421 size_t page_length;
1422 u8 volume_status = CISS_LV_STATUS_UNAVAILABLE;
1423 bool volume_offline = true;
1424 u32 volume_flags;
1425 struct ciss_vpd_logical_volume_status *vpd;
1426
1427 vpd = kmalloc(sizeof(*vpd), GFP_KERNEL);
1428 if (!vpd)
1429 goto no_buffer;
1430
1431 rc = pqi_scsi_inquiry(ctrl_info, device->scsi3addr,
1432 VPD_PAGE | CISS_VPD_LV_STATUS, vpd, sizeof(*vpd));
1433 if (rc)
1434 goto out;
1435
7ff44499
DC		 1436 if (vpd->page_code != CISS_VPD_LV_STATUS)
1437 goto out;
1438
6c223761
KB		 1439 page_length = offsetof(struct ciss_vpd_logical_volume_status,
1440 volume_status) + vpd->page_length;
1441 if (page_length < sizeof(*vpd))
1442 goto out;
1443
1444 volume_status = vpd->volume_status;
1445 volume_flags = get_unaligned_be32(&vpd->flags);
1446 volume_offline = (volume_flags & CISS_LV_FLAGS_NO_HOST_IO) != 0;
1447
1448out:
1449 kfree(vpd);
1450no_buffer:
1451 device->volume_status = volume_status;
1452 device->volume_offline = volume_offline;
1453}
1454
ec504b23
MB		 1455#define PQI_DEVICE_PHY_MAP_SUPPORTED 0x10
1456
ce143793
KB		 1457static int pqi_get_physical_device_info(struct pqi_ctrl_info *ctrl_info,
1458 struct pqi_scsi_dev *device,
1459 struct bmic_identify_physical_device *id_phys)
1460{
1461 int rc;
26b390ab 1462
ce143793
KB		 1463 memset(id_phys, 0, sizeof(*id_phys));
1464
1465 rc = pqi_identify_physical_device(ctrl_info, device,
1466 id_phys, sizeof(*id_phys));
1467 if (rc) {
1468 device->queue_depth = PQI_PHYSICAL_DISK_DEFAULT_MAX_QUEUE_DEPTH;
1469 return rc;
1470 }
1471
1472 scsi_sanitize_inquiry_string(&id_phys->model[0], 8);
1473 scsi_sanitize_inquiry_string(&id_phys->model[8], 16);
1474
1475 memcpy(device->vendor, &id_phys->model[0], sizeof(device->vendor));
1476 memcpy(device->model, &id_phys->model[8], sizeof(device->model));
1477
1478 device->box_index = id_phys->box_index;
1479 device->phys_box_on_bus = id_phys->phys_box_on_bus;
1480 device->phy_connected_dev_type = id_phys->phy_connected_dev_type[0];
1481 device->queue_depth =
1482 get_unaligned_le16(&id_phys->current_queue_depth_limit);
1483 device->active_path_index = id_phys->active_path_number;
1484 device->path_map = id_phys->redundant_path_present_map;
1485 memcpy(&device->box,
1486 &id_phys->alternate_paths_phys_box_on_port,
1487 sizeof(device->box));
1488 memcpy(&device->phys_connector,
1489 &id_phys->alternate_paths_phys_connector,
1490 sizeof(device->phys_connector));
1491 device->bay = id_phys->phys_bay_in_box;
1492
7a84a821
KB		 1493 memcpy(&device->page_83_identifier, &id_phys->page_83_identifier,
1494 sizeof(device->page_83_identifier));
1495
ec504b23
MB		 1496 if ((id_phys->even_more_flags & PQI_DEVICE_PHY_MAP_SUPPORTED) &&
1497 id_phys->phy_count)
1498 device->phy_id =
1499 id_phys->phy_to_phy_map[device->active_path_index];
1500 else
1501 device->phy_id = 0xFF;
1502
ce143793
KB		 1503 return 0;
1504}
1505
1506static int pqi_get_logical_device_info(struct pqi_ctrl_info *ctrl_info,
6c223761
KB		 1507 struct pqi_scsi_dev *device)
1508{
1509 int rc;
1510 u8 *buffer;
3d46a59a 1511
6c223761
KB		 1512 buffer = kmalloc(64, GFP_KERNEL);
1513 if (!buffer)
1514 return -ENOMEM;
1515
1516 /* Send an inquiry to the device to see what it is. */
ce143793
KB		 1517 rc = pqi_scsi_inquiry(ctrl_info, device->scsi3addr, 0, buffer, 64);
1518 if (rc)
1519 goto out;
6c223761
KB		 1520
1521 scsi_sanitize_inquiry_string(&buffer[8], 8);
1522 scsi_sanitize_inquiry_string(&buffer[16], 16);
1523
1524 device->devtype = buffer[0] & 0x1f;
cbe0c7b1
KB		 1525 memcpy(device->vendor, &buffer[8], sizeof(device->vendor));
1526 memcpy(device->model, &buffer[16], sizeof(device->model));
6c223761 1527
ce143793 1528 if (device->devtype == TYPE_DISK) {
bd10cf0b
KB		 1529 if (device->is_external_raid_device) {
1530 device->raid_level = SA_RAID_UNKNOWN;
1531 device->volume_status = CISS_LV_OK;
1532 device->volume_offline = false;
1533 } else {
1534 pqi_get_raid_level(ctrl_info, device);
588a63fe 1535 pqi_get_raid_bypass_status(ctrl_info, device);
bd10cf0b
KB		 1536 pqi_get_volume_status(ctrl_info, device);
1537 }
6c223761
KB		 1538 }
1539
1540out:
1541 kfree(buffer);
1542
1543 return rc;
1544}
1545
ce143793 1546static int pqi_get_device_info(struct pqi_ctrl_info *ctrl_info,
6c223761
KB		 1547 struct pqi_scsi_dev *device,
1548 struct bmic_identify_physical_device *id_phys)
1549{
1550 int rc;
1551
ce143793
KB		 1552 if (device->is_expander_smp_device)
1553 return 0;
6c223761 1554
ce143793
KB		 1555 if (pqi_is_logical_device(device))
1556 rc = pqi_get_logical_device_info(ctrl_info, device);
1557 else
1558 rc = pqi_get_physical_device_info(ctrl_info, device, id_phys);
694c5d5b 1559
ce143793 1560 return rc;
6c223761
KB		 1561}
1562
1563static void pqi_show_volume_status(struct pqi_ctrl_info *ctrl_info,
1564 struct pqi_scsi_dev *device)
1565{
1566 char *status;
1567 static const char unknown_state_str[] =
1568 "Volume is in an unknown state (%u)";
1569 char unknown_state_buffer[sizeof(unknown_state_str) + 10];
1570
1571 switch (device->volume_status) {
1572 case CISS_LV_OK:
1573 status = "Volume online";
1574 break;
1575 case CISS_LV_FAILED:
1576 status = "Volume failed";
1577 break;
1578 case CISS_LV_NOT_CONFIGURED:
1579 status = "Volume not configured";
1580 break;
1581 case CISS_LV_DEGRADED:
1582 status = "Volume degraded";
1583 break;
1584 case CISS_LV_READY_FOR_RECOVERY:
1585 status = "Volume ready for recovery operation";
1586 break;
1587 case CISS_LV_UNDERGOING_RECOVERY:
1588 status = "Volume undergoing recovery";
1589 break;
1590 case CISS_LV_WRONG_PHYSICAL_DRIVE_REPLACED:
1591 status = "Wrong physical drive was replaced";
1592 break;
1593 case CISS_LV_PHYSICAL_DRIVE_CONNECTION_PROBLEM:
1594 status = "A physical drive not properly connected";
1595 break;
1596 case CISS_LV_HARDWARE_OVERHEATING:
1597 status = "Hardware is overheating";
1598 break;
1599 case CISS_LV_HARDWARE_HAS_OVERHEATED:
1600 status = "Hardware has overheated";
1601 break;
1602 case CISS_LV_UNDERGOING_EXPANSION:
1603 status = "Volume undergoing expansion";
1604 break;
1605 case CISS_LV_NOT_AVAILABLE:
1606 status = "Volume waiting for transforming volume";
1607 break;
1608 case CISS_LV_QUEUED_FOR_EXPANSION:
1609 status = "Volume queued for expansion";
1610 break;
1611 case CISS_LV_DISABLED_SCSI_ID_CONFLICT:
1612 status = "Volume disabled due to SCSI ID conflict";
1613 break;
1614 case CISS_LV_EJECTED:
1615 status = "Volume has been ejected";
1616 break;
1617 case CISS_LV_UNDERGOING_ERASE:
1618 status = "Volume undergoing background erase";
1619 break;
1620 case CISS_LV_READY_FOR_PREDICTIVE_SPARE_REBUILD:
1621 status = "Volume ready for predictive spare rebuild";
1622 break;
1623 case CISS_LV_UNDERGOING_RPI:
1624 status = "Volume undergoing rapid parity initialization";
1625 break;
1626 case CISS_LV_PENDING_RPI:
1627 status = "Volume queued for rapid parity initialization";
1628 break;
1629 case CISS_LV_ENCRYPTED_NO_KEY:
1630 status = "Encrypted volume inaccessible - key not present";
1631 break;
1632 case CISS_LV_UNDERGOING_ENCRYPTION:
1633 status = "Volume undergoing encryption process";
1634 break;
1635 case CISS_LV_UNDERGOING_ENCRYPTION_REKEYING:
1636 status = "Volume undergoing encryption re-keying process";
1637 break;
1638 case CISS_LV_ENCRYPTED_IN_NON_ENCRYPTED_CONTROLLER:
d87d5474 1639 status = "Volume encrypted but encryption is disabled";
6c223761
KB		 1640 break;
1641 case CISS_LV_PENDING_ENCRYPTION:
1642 status = "Volume pending migration to encrypted state";
1643 break;
1644 case CISS_LV_PENDING_ENCRYPTION_REKEYING:
1645 status = "Volume pending encryption rekeying";
1646 break;
1647 case CISS_LV_NOT_SUPPORTED:
1648 status = "Volume not supported on this controller";
1649 break;
1650 case CISS_LV_STATUS_UNAVAILABLE:
1651 status = "Volume status not available";
1652 break;
1653 default:
1654 snprintf(unknown_state_buffer, sizeof(unknown_state_buffer),
1655 unknown_state_str, device->volume_status);
1656 status = unknown_state_buffer;
1657 break;
1658 }
1659
1660 dev_info(&ctrl_info->pci_dev->dev,
1661 "scsi %d:%d:%d:%d %s\n",
1662 ctrl_info->scsi_host->host_no,
1663 device->bus, device->target, device->lun, status);
1664}
1665
6c223761
KB		 1666static void pqi_rescan_worker(struct work_struct *work)
1667{
1668 struct pqi_ctrl_info *ctrl_info;
1669
1670 ctrl_info = container_of(to_delayed_work(work), struct pqi_ctrl_info,
1671 rescan_work);
1672
1673 pqi_scan_scsi_devices(ctrl_info);
1674}
1675
1676static int pqi_add_device(struct pqi_ctrl_info *ctrl_info,
1677 struct pqi_scsi_dev *device)
1678{
1679 int rc;
1680
1681 if (pqi_is_logical_device(device))
1682 rc = scsi_add_device(ctrl_info->scsi_host, device->bus,
1683 device->target, device->lun);
1684 else
1685 rc = pqi_add_sas_device(ctrl_info->sas_host, device);
1686
1687 return rc;
1688}
1689
18ff5f08 1690#define PQI_REMOVE_DEVICE_PENDING_IO_TIMEOUT_MSECS (20 * 1000)
1e46731e 1691
583891c9 1692static inline void pqi_remove_device(struct pqi_ctrl_info *ctrl_info, struct pqi_scsi_dev *device)
6c223761 1693{
1e46731e
MR		 1694 int rc;
1695
1696 pqi_device_remove_start(device);
1697
18ff5f08
KB		 1698 rc = pqi_device_wait_for_pending_io(ctrl_info, device,
1699 PQI_REMOVE_DEVICE_PENDING_IO_TIMEOUT_MSECS);
1e46731e
MR		 1700 if (rc)
1701 dev_err(&ctrl_info->pci_dev->dev,
4d15ad38 1702 "scsi %d:%d:%d:%d removing device with %d outstanding command(s)\n",
1e46731e
MR		 1703 ctrl_info->scsi_host->host_no, device->bus,
1704 device->target, device->lun,
1705 atomic_read(&device->scsi_cmds_outstanding));
1706
6c223761
KB		 1707 if (pqi_is_logical_device(device))
1708 scsi_remove_device(device->sdev);
1709 else
1710 pqi_remove_sas_device(device);
1711}
1712
1713/* Assumes the SCSI device list lock is held. */
1714
1715static struct pqi_scsi_dev *pqi_find_scsi_dev(struct pqi_ctrl_info *ctrl_info,
1716 int bus, int target, int lun)
1717{
1718 struct pqi_scsi_dev *device;
1719
4d15ad38
KB		 1720 list_for_each_entry(device, &ctrl_info->scsi_device_list, scsi_device_list_entry)
1721 if (device->bus == bus && device->target == target && device->lun == lun)
6c223761
KB		 1722 return device;
1723
1724 return NULL;
1725}
1726
583891c9 1727static inline bool pqi_device_equal(struct pqi_scsi_dev *dev1, struct pqi_scsi_dev *dev2)
6c223761
KB		 1728{
1729 if (dev1->is_physical_device != dev2->is_physical_device)
1730 return false;
1731
1732 if (dev1->is_physical_device)
1733 return dev1->wwid == dev2->wwid;
1734
583891c9 1735 return memcmp(dev1->volume_id, dev2->volume_id, sizeof(dev1->volume_id)) == 0;
6c223761
KB		 1736}
1737
1738enum pqi_find_result {
1739 DEVICE_NOT_FOUND,
1740 DEVICE_CHANGED,
1741 DEVICE_SAME,
1742};
1743
1744static enum pqi_find_result pqi_scsi_find_entry(struct pqi_ctrl_info *ctrl_info,
4d15ad38 1745 struct pqi_scsi_dev *device_to_find, struct pqi_scsi_dev **matching_device)
6c223761
KB		 1746{
1747 struct pqi_scsi_dev *device;
1748
4d15ad38
KB		 1749 list_for_each_entry(device, &ctrl_info->scsi_device_list, scsi_device_list_entry) {
1750 if (pqi_scsi3addr_equal(device_to_find->scsi3addr, device->scsi3addr)) {
6c223761
KB		 1751 *matching_device = device;
1752 if (pqi_device_equal(device_to_find, device)) {
1753 if (device_to_find->volume_offline)
1754 return DEVICE_CHANGED;
1755 return DEVICE_SAME;
1756 }
1757 return DEVICE_CHANGED;
1758 }
1759 }
1760
1761 return DEVICE_NOT_FOUND;
1762}
1763
3d46a59a
DB		 1764static inline const char *pqi_device_type(struct pqi_scsi_dev *device)
1765{
1766 if (device->is_expander_smp_device)
1767 return "Enclosure SMP ";
1768
1769 return scsi_device_type(device->devtype);
1770}
1771
6de783f6
KB		 1772#define PQI_DEV_INFO_BUFFER_LENGTH 128
1773
6c223761
KB		 1774static void pqi_dev_info(struct pqi_ctrl_info *ctrl_info,
1775 char *action, struct pqi_scsi_dev *device)
1776{
6de783f6
KB		 1777 ssize_t count;
1778 char buffer[PQI_DEV_INFO_BUFFER_LENGTH];
1779
a4256252 1780 count = scnprintf(buffer, PQI_DEV_INFO_BUFFER_LENGTH,
6de783f6
KB		 1781 "%d:%d:", ctrl_info->scsi_host->host_no, device->bus);
1782
1783 if (device->target_lun_valid)
181aea89 1784 count += scnprintf(buffer + count,
6de783f6
KB		 1785 PQI_DEV_INFO_BUFFER_LENGTH - count,
1786 "%d:%d",
1787 device->target,
1788 device->lun);
1789 else
181aea89 1790 count += scnprintf(buffer + count,
6de783f6
KB		 1791 PQI_DEV_INFO_BUFFER_LENGTH - count,
1792 "-:-");
1793
1794 if (pqi_is_logical_device(device))
181aea89 1795 count += scnprintf(buffer + count,
6de783f6
KB		 1796 PQI_DEV_INFO_BUFFER_LENGTH - count,
1797 " %08x%08x",
1798 *((u32 *)&device->scsi3addr),
1799 *((u32 *)&device->scsi3addr[4]));
1800 else
181aea89 1801 count += scnprintf(buffer + count,
6de783f6
KB		 1802 PQI_DEV_INFO_BUFFER_LENGTH - count,
1803 " %016llx", device->sas_address);
1804
181aea89 1805 count += scnprintf(buffer + count, PQI_DEV_INFO_BUFFER_LENGTH - count,
6de783f6 1806 " %s %.8s %.16s ",
3d46a59a 1807 pqi_device_type(device),
6c223761 1808 device->vendor,
6de783f6
KB		 1809 device->model);
1810
1811 if (pqi_is_logical_device(device)) {
1812 if (device->devtype == TYPE_DISK)
181aea89 1813 count += scnprintf(buffer + count,
6de783f6
KB		 1814 PQI_DEV_INFO_BUFFER_LENGTH - count,
1815 "SSDSmartPathCap%c En%c %-12s",
588a63fe
KB		 1816 device->raid_bypass_configured ? '+' : '-',
1817 device->raid_bypass_enabled ? '+' : '-',
6de783f6
KB		 1818 pqi_raid_level_to_string(device->raid_level));
1819 } else {
181aea89 1820 count += scnprintf(buffer + count,
6de783f6
KB		 1821 PQI_DEV_INFO_BUFFER_LENGTH - count,
1822 "AIO%c", device->aio_enabled ? '+' : '-');
1823 if (device->devtype == TYPE_DISK ||
1824 device->devtype == TYPE_ZBC)
181aea89 1825 count += scnprintf(buffer + count,
6de783f6
KB		 1826 PQI_DEV_INFO_BUFFER_LENGTH - count,
1827 " qd=%-6d", device->queue_depth);
1828 }
1829
1830 dev_info(&ctrl_info->pci_dev->dev, "%s %s\n", action, buffer);
6c223761
KB		 1831}
1832
1833/* Assumes the SCSI device list lock is held. */
1834
1835static void pqi_scsi_update_device(struct pqi_scsi_dev *existing_device,
1836 struct pqi_scsi_dev *new_device)
1837{
6c223761
KB		 1838 existing_device->device_type = new_device->device_type;
1839 existing_device->bus = new_device->bus;
1840 if (new_device->target_lun_valid) {
1841 existing_device->target = new_device->target;
1842 existing_device->lun = new_device->lun;
1843 existing_device->target_lun_valid = true;
1844 }
1845
244ca45e
MR		 1846 if ((existing_device->volume_status == CISS_LV_QUEUED_FOR_EXPANSION ||
1847 existing_device->volume_status == CISS_LV_UNDERGOING_EXPANSION) &&
1848 new_device->volume_status == CISS_LV_OK)
1849 existing_device->rescan = true;
1850
6c223761
KB		 1851 /* By definition, the scsi3addr and wwid fields are already the same. */
1852
1853 existing_device->is_physical_device = new_device->is_physical_device;
bd10cf0b
KB		 1854 existing_device->is_external_raid_device =
1855 new_device->is_external_raid_device;
3d46a59a
DB		 1856 existing_device->is_expander_smp_device =
1857 new_device->is_expander_smp_device;
6c223761
KB		 1858 existing_device->aio_enabled = new_device->aio_enabled;
1859 memcpy(existing_device->vendor, new_device->vendor,
1860 sizeof(existing_device->vendor));
1861 memcpy(existing_device->model, new_device->model,
1862 sizeof(existing_device->model));
1863 existing_device->sas_address = new_device->sas_address;
1864 existing_device->raid_level = new_device->raid_level;
1865 existing_device->queue_depth = new_device->queue_depth;
1866 existing_device->aio_handle = new_device->aio_handle;
1867 existing_device->volume_status = new_device->volume_status;
1868 existing_device->active_path_index = new_device->active_path_index;
ec504b23 1869 existing_device->phy_id = new_device->phy_id;
6c223761
KB		 1870 existing_device->path_map = new_device->path_map;
1871 existing_device->bay = new_device->bay;
2d2ad4bc
GW		 1872 existing_device->box_index = new_device->box_index;
1873 existing_device->phys_box_on_bus = new_device->phys_box_on_bus;
583891c9 1874 existing_device->phy_connected_dev_type = new_device->phy_connected_dev_type;
6c223761
KB		 1875 memcpy(existing_device->box, new_device->box,
1876 sizeof(existing_device->box));
1877 memcpy(existing_device->phys_connector, new_device->phys_connector,
1878 sizeof(existing_device->phys_connector));
7a012c23 1879 existing_device->next_bypass_group = 0;
6c223761
KB		 1880 kfree(existing_device->raid_map);
1881 existing_device->raid_map = new_device->raid_map;
588a63fe
KB		 1882 existing_device->raid_bypass_configured =
1883 new_device->raid_bypass_configured;
1884 existing_device->raid_bypass_enabled =
1885 new_device->raid_bypass_enabled;
a9a68101 1886 existing_device->device_offline = false;
6c223761
KB		 1887
1888 /* To prevent this from being freed later. */
1889 new_device->raid_map = NULL;
1890}
1891
1892static inline void pqi_free_device(struct pqi_scsi_dev *device)
1893{
1894 if (device) {
1895 kfree(device->raid_map);
1896 kfree(device);
1897 }
1898}
1899
1900/*
1901 * Called when exposing a new device to the OS fails in order to re-adjust
1902 * our internal SCSI device list to match the SCSI ML's view.
1903 */
1904
1905static inline void pqi_fixup_botched_add(struct pqi_ctrl_info *ctrl_info,
1906 struct pqi_scsi_dev *device)
1907{
1908 unsigned long flags;
1909
1910 spin_lock_irqsave(&ctrl_info->scsi_device_list_lock, flags);
1911 list_del(&device->scsi_device_list_entry);
1912 spin_unlock_irqrestore(&ctrl_info->scsi_device_list_lock, flags);
1913
1914 /* Allow the device structure to be freed later. */
1915 device->keep_device = false;
1916}
1917
3d46a59a
DB		 1918static inline bool pqi_is_device_added(struct pqi_scsi_dev *device)
1919{
1920 if (device->is_expander_smp_device)
1921 return device->sas_port != NULL;
1922
1923 return device->sdev != NULL;
1924}
1925
6c223761
KB		 1926static void pqi_update_device_list(struct pqi_ctrl_info *ctrl_info,
1927 struct pqi_scsi_dev *new_device_list[], unsigned int num_new_devices)
1928{
1929 int rc;
1930 unsigned int i;
1931 unsigned long flags;
1932 enum pqi_find_result find_result;
1933 struct pqi_scsi_dev *device;
1934 struct pqi_scsi_dev *next;
1935 struct pqi_scsi_dev *matching_device;
8a994a04
KB		 1936 LIST_HEAD(add_list);
1937 LIST_HEAD(delete_list);
6c223761
KB		 1938
1939 /*
1940 * The idea here is to do as little work as possible while holding the
1941 * spinlock. That's why we go to great pains to defer anything other
1942 * than updating the internal device list until after we release the
1943 * spinlock.
1944 */
1945
1946 spin_lock_irqsave(&ctrl_info->scsi_device_list_lock, flags);
1947
1948 /* Assume that all devices in the existing list have gone away. */
4d15ad38 1949 list_for_each_entry(device, &ctrl_info->scsi_device_list, scsi_device_list_entry)
6c223761
KB		 1950 device->device_gone = true;
1951
1952 for (i = 0; i < num_new_devices; i++) {
1953 device = new_device_list[i];
1954
1955 find_result = pqi_scsi_find_entry(ctrl_info, device,
694c5d5b 1956 &matching_device);
6c223761
KB		 1957
1958 switch (find_result) {
1959 case DEVICE_SAME:
1960 /*
1961 * The newly found device is already in the existing
1962 * device list.
1963 */
1964 device->new_device = false;
1965 matching_device->device_gone = false;
1966 pqi_scsi_update_device(matching_device, device);
1967 break;
1968 case DEVICE_NOT_FOUND:
1969 /*
1970 * The newly found device is NOT in the existing device
1971 * list.
1972 */
1973 device->new_device = true;
1974 break;
1975 case DEVICE_CHANGED:
1976 /*
1977 * The original device has gone away and we need to add
1978 * the new device.
1979 */
1980 device->new_device = true;
1981 break;
6c223761
KB		 1982 }
1983 }
1984
1985 /* Process all devices that have gone away. */
1986 list_for_each_entry_safe(device, next, &ctrl_info->scsi_device_list,
1987 scsi_device_list_entry) {
1988 if (device->device_gone) {
4d15ad38 1989 list_del_init(&device->scsi_device_list_entry);
6c223761
KB		 1990 list_add_tail(&device->delete_list_entry, &delete_list);
1991 }
1992 }
1993
1994 /* Process all new devices. */
1995 for (i = 0; i < num_new_devices; i++) {
1996 device = new_device_list[i];
1997 if (!device->new_device)
1998 continue;
1999 if (device->volume_offline)
2000 continue;
2001 list_add_tail(&device->scsi_device_list_entry,
2002 &ctrl_info->scsi_device_list);
2003 list_add_tail(&device->add_list_entry, &add_list);
2004 /* To prevent this device structure from being freed later. */
2005 device->keep_device = true;
2006 }
2007
6c223761
KB		 2008 spin_unlock_irqrestore(&ctrl_info->scsi_device_list_lock, flags);
2009
2790cd4d
KB		 2010 /*
2011 * If OFA is in progress and there are devices that need to be deleted,
2012 * allow any pending reset operations to continue and unblock any SCSI
2013 * requests before removal.
2014 */
2015 if (pqi_ofa_in_progress(ctrl_info)) {
2016 list_for_each_entry_safe(device, next, &delete_list, delete_list_entry)
2017 if (pqi_is_device_added(device))
2018 pqi_device_remove_start(device);
2019 pqi_ctrl_unblock_device_reset(ctrl_info);
2020 pqi_scsi_unblock_requests(ctrl_info);
2021 }
4fd22c13 2022
6c223761 2023 /* Remove all devices that have gone away. */
4d15ad38 2024 list_for_each_entry_safe(device, next, &delete_list, delete_list_entry) {
6c223761
KB		 2025 if (device->volume_offline) {
2026 pqi_dev_info(ctrl_info, "offline", device);
2027 pqi_show_volume_status(ctrl_info, device);
6c223761
KB		 2028 }
2029 list_del(&device->delete_list_entry);
4d15ad38
KB		 2030 if (pqi_is_device_added(device)) {
2031 pqi_remove_device(ctrl_info, device);
2032 } else {
2033 if (!device->volume_offline)
2034 pqi_dev_info(ctrl_info, "removed", device);
2035 pqi_free_device(device);
2036 }
6c223761
KB		 2037 }
2038
2039 /*
2040 * Notify the SCSI ML if the queue depth of any existing device has
2041 * changed.
2042 */
583891c9
KB		 2043 list_for_each_entry(device, &ctrl_info->scsi_device_list, scsi_device_list_entry) {
2044 if (device->sdev && device->queue_depth != device->advertised_queue_depth) {
2045 device->advertised_queue_depth = device->queue_depth;
2046 scsi_change_queue_depth(device->sdev, device->advertised_queue_depth);
244ca45e
MR		 2047 if (device->rescan) {
2048 scsi_rescan_device(&device->sdev->sdev_gendev);
2049 device->rescan = false;
2050 }
6c223761
KB		 2051 }
2052 }
2053
2054 /* Expose any new devices. */
2055 list_for_each_entry_safe(device, next, &add_list, add_list_entry) {
3d46a59a 2056 if (!pqi_is_device_added(device)) {
6c223761 2057 rc = pqi_add_device(ctrl_info, device);
ce143793
KB		 2058 if (rc == 0) {
2059 pqi_dev_info(ctrl_info, "added", device);
2060 } else {
6c223761
KB		 2061 dev_warn(&ctrl_info->pci_dev->dev,
2062 "scsi %d:%d:%d:%d addition failed, device not added\n",
2063 ctrl_info->scsi_host->host_no,
2064 device->bus, device->target,
2065 device->lun);
2066 pqi_fixup_botched_add(ctrl_info, device);
6c223761
KB		 2067 }
2068 }
6c223761
KB		 2069 }
2070}
2071
ce143793 2072static inline bool pqi_is_supported_device(struct pqi_scsi_dev *device)
6c223761 2073{
ce143793
KB		 2074 /*
2075 * Only support the HBA controller itself as a RAID
2076 * controller. If it's a RAID controller other than
2077 * the HBA itself (an external RAID controller, for
2078 * example), we don't support it.
2079 */
2080 if (device->device_type == SA_DEVICE_TYPE_CONTROLLER &&
2081 !pqi_is_hba_lunid(device->scsi3addr))
583891c9 2082 return false;
6c223761 2083
ce143793 2084 return true;
6c223761
KB		 2085}
2086
94086f5b 2087static inline bool pqi_skip_device(u8 *scsi3addr)
6c223761 2088{
94086f5b
KB		 2089 /* Ignore all masked devices. */
2090 if (MASKED_DEVICE(scsi3addr))
6c223761 2091 return true;
6c223761
KB		 2092
2093 return false;
2094}
2095
522bc026
DC		 2096static inline void pqi_mask_device(u8 *scsi3addr)
2097{
2098 scsi3addr[3] |= 0xc0;
2099}
2100
3d46a59a
DB		 2101static inline bool pqi_is_device_with_sas_address(struct pqi_scsi_dev *device)
2102{
ce143793
KB		 2103 switch (device->device_type) {
2104 case SA_DEVICE_TYPE_SAS:
2105 case SA_DEVICE_TYPE_EXPANDER_SMP:
2106 case SA_DEVICE_TYPE_SES:
3d46a59a
DB		 2107 return true;
2108 }
2109
2110 return false;
2111}
2112
cd128244
DC		 2113static inline bool pqi_expose_device(struct pqi_scsi_dev *device)
2114{
583891c9 2115 return !device->is_physical_device || !pqi_skip_device(device->scsi3addr);
cd128244
DC		 2116}
2117
7a84a821
KB		 2118static inline void pqi_set_physical_device_wwid(struct pqi_ctrl_info *ctrl_info,
2119 struct pqi_scsi_dev *device, struct report_phys_lun_extended_entry *phys_lun_ext_entry)
2120{
2121 if (ctrl_info->unique_wwid_in_report_phys_lun_supported ||
2122 pqi_is_device_with_sas_address(device))
2123 device->wwid = phys_lun_ext_entry->wwid;
2124 else
2125 device->wwid = cpu_to_be64(get_unaligned_be64(&device->page_83_identifier));
cd128244
DC		 2126}
2127
6c223761
KB		 2128static int pqi_update_scsi_devices(struct pqi_ctrl_info *ctrl_info)
2129{
2130 int i;
2131 int rc;
8a994a04 2132 LIST_HEAD(new_device_list_head);
6c223761
KB		 2133 struct report_phys_lun_extended *physdev_list = NULL;
2134 struct report_log_lun_extended *logdev_list = NULL;
2135 struct report_phys_lun_extended_entry *phys_lun_ext_entry;
2136 struct report_log_lun_extended_entry *log_lun_ext_entry;
2137 struct bmic_identify_physical_device *id_phys = NULL;
2138 u32 num_physicals;
2139 u32 num_logicals;
2140 struct pqi_scsi_dev **new_device_list = NULL;
2141 struct pqi_scsi_dev *device;
2142 struct pqi_scsi_dev *next;
2143 unsigned int num_new_devices;
2144 unsigned int num_valid_devices;
2145 bool is_physical_device;
2146 u8 *scsi3addr;
5e6a9760
GW		 2147 unsigned int physical_index;
2148 unsigned int logical_index;
6c223761 2149 static char *out_of_memory_msg =
6de783f6 2150 "failed to allocate memory, device discovery stopped";
6c223761 2151
6c223761
KB		 2152 rc = pqi_get_device_lists(ctrl_info, &physdev_list, &logdev_list);
2153 if (rc)
2154 goto out;
2155
2156 if (physdev_list)
2157 num_physicals =
2158 get_unaligned_be32(&physdev_list->header.list_length)
2159 / sizeof(physdev_list->lun_entries[0]);
2160 else
2161 num_physicals = 0;
2162
2163 if (logdev_list)
2164 num_logicals =
2165 get_unaligned_be32(&logdev_list->header.list_length)
2166 / sizeof(logdev_list->lun_entries[0]);
2167 else
2168 num_logicals = 0;
2169
2170 if (num_physicals) {
2171 /*
2172 * We need this buffer for calls to pqi_get_physical_disk_info()
2173 * below. We allocate it here instead of inside
2174 * pqi_get_physical_disk_info() because it's a fairly large
2175 * buffer.
2176 */
2177 id_phys = kmalloc(sizeof(*id_phys), GFP_KERNEL);
2178 if (!id_phys) {
2179 dev_warn(&ctrl_info->pci_dev->dev, "%s\n",
2180 out_of_memory_msg);
2181 rc = -ENOMEM;
2182 goto out;
2183 }
522bc026 2184
694c5d5b 2185 if (pqi_hide_vsep) {
522bc026
DC		 2186 for (i = num_physicals - 1; i >= 0; i--) {
2187 phys_lun_ext_entry =
2188 &physdev_list->lun_entries[i];
583891c9
KB		 2189 if (CISS_GET_DRIVE_NUMBER(phys_lun_ext_entry->lunid) == PQI_VSEP_CISS_BTL) {
2190 pqi_mask_device(phys_lun_ext_entry->lunid);
522bc026
DC		 2191 break;
2192 }
2193 }
2194 }
6c223761
KB		 2195 }
2196
f6cc2a77
KB		 2197 if (num_logicals &&
2198 (logdev_list->header.flags & CISS_REPORT_LOG_FLAG_DRIVE_TYPE_MIX))
2199 ctrl_info->lv_drive_type_mix_valid = true;
2200
6c223761
KB		 2201 num_new_devices = num_physicals + num_logicals;
2202
6da2ec56
KC		 2203 new_device_list = kmalloc_array(num_new_devices,
2204 sizeof(*new_device_list),
2205 GFP_KERNEL);
6c223761
KB		 2206 if (!new_device_list) {
2207 dev_warn(&ctrl_info->pci_dev->dev, "%s\n", out_of_memory_msg);
2208 rc = -ENOMEM;
2209 goto out;
2210 }
2211
2212 for (i = 0; i < num_new_devices; i++) {
2213 device = kzalloc(sizeof(*device), GFP_KERNEL);
2214 if (!device) {
2215 dev_warn(&ctrl_info->pci_dev->dev, "%s\n",
2216 out_of_memory_msg);
2217 rc = -ENOMEM;
2218 goto out;
2219 }
2220 list_add_tail(&device->new_device_list_entry,
2221 &new_device_list_head);
2222 }
2223
2224 device = NULL;
2225 num_valid_devices = 0;
5e6a9760
GW		 2226 physical_index = 0;
2227 logical_index = 0;
6c223761
KB		 2228
2229 for (i = 0; i < num_new_devices; i++) {
2230
5e6a9760
GW		 2231 if ((!pqi_expose_ld_first && i < num_physicals) ||
2232 (pqi_expose_ld_first && i >= num_logicals)) {
6c223761 2233 is_physical_device = true;
5e6a9760
GW		 2234 phys_lun_ext_entry =
2235 &physdev_list->lun_entries[physical_index++];
6c223761
KB		 2236 log_lun_ext_entry = NULL;
2237 scsi3addr = phys_lun_ext_entry->lunid;
2238 } else {
2239 is_physical_device = false;
2240 phys_lun_ext_entry = NULL;
2241 log_lun_ext_entry =
5e6a9760 2242 &logdev_list->lun_entries[logical_index++];
6c223761
KB		 2243 scsi3addr = log_lun_ext_entry->lunid;
2244 }
2245
94086f5b 2246 if (is_physical_device && pqi_skip_device(scsi3addr))
6c223761
KB		 2247 continue;
2248
2249 if (device)
2250 device = list_next_entry(device, new_device_list_entry);
2251 else
2252 device = list_first_entry(&new_device_list_head,
2253 struct pqi_scsi_dev, new_device_list_entry);
2254
2255 memcpy(device->scsi3addr, scsi3addr, sizeof(device->scsi3addr));
2256 device->is_physical_device = is_physical_device;
3d46a59a 2257 if (is_physical_device) {
ce143793
KB		 2258 device->device_type = phys_lun_ext_entry->device_type;
2259 if (device->device_type == SA_DEVICE_TYPE_EXPANDER_SMP)
3d46a59a
DB		 2260 device->is_expander_smp_device = true;
2261 } else {
bd10cf0b
KB		 2262 device->is_external_raid_device =
2263 pqi_is_external_raid_addr(scsi3addr);
3d46a59a 2264 }
6c223761 2265
ce143793
KB		 2266 if (!pqi_is_supported_device(device))
2267 continue;
2268
6c223761 2269 /* Gather information about the device. */
ce143793 2270 rc = pqi_get_device_info(ctrl_info, device, id_phys);
6c223761
KB		 2271 if (rc == -ENOMEM) {
2272 dev_warn(&ctrl_info->pci_dev->dev, "%s\n",
2273 out_of_memory_msg);
2274 goto out;
2275 }
2276 if (rc) {
6de783f6
KB		 2277 if (device->is_physical_device)
2278 dev_warn(&ctrl_info->pci_dev->dev,
2279 "obtaining device info failed, skipping physical device %016llx\n",
583891c9 2280 get_unaligned_be64(&phys_lun_ext_entry->wwid));
6de783f6
KB		 2281 else
2282 dev_warn(&ctrl_info->pci_dev->dev,
2283 "obtaining device info failed, skipping logical device %08x%08x\n",
2284 *((u32 *)&device->scsi3addr),
2285 *((u32 *)&device->scsi3addr[4]));
6c223761
KB		 2286 rc = 0;
2287 continue;
2288 }
2289
6c223761
KB		 2290 pqi_assign_bus_target_lun(device);
2291
6c223761 2292 if (device->is_physical_device) {
7a84a821 2293 pqi_set_physical_device_wwid(ctrl_info, device, phys_lun_ext_entry);
6c223761 2294 if ((phys_lun_ext_entry->device_flags &
694c5d5b 2295 CISS_REPORT_PHYS_DEV_FLAG_AIO_ENABLED) &&
3d46a59a 2296 phys_lun_ext_entry->aio_handle) {
583891c9
KB		 2297 device->aio_enabled = true;
2298 device->aio_handle =
2299 phys_lun_ext_entry->aio_handle;
3d46a59a 2300 }
6c223761
KB		 2301 } else {
2302 memcpy(device->volume_id, log_lun_ext_entry->volume_id,
2303 sizeof(device->volume_id));
2304 }
2305
3d46a59a
DB		 2306 if (pqi_is_device_with_sas_address(device))
2307 device->sas_address = get_unaligned_be64(&device->wwid);
6c223761
KB		 2308
2309 new_device_list[num_valid_devices++] = device;
2310 }
2311
2312 pqi_update_device_list(ctrl_info, new_device_list, num_valid_devices);
2313
2314out:
2315 list_for_each_entry_safe(device, next, &new_device_list_head,
2316 new_device_list_entry) {
2317 if (device->keep_device)
2318 continue;
2319 list_del(&device->new_device_list_entry);
2320 pqi_free_device(device);
2321 }
2322
2323 kfree(new_device_list);
2324 kfree(physdev_list);
2325 kfree(logdev_list);
2326 kfree(id_phys);
2327
2328 return rc;
2329}
2330
6c223761
KB		 2331static int pqi_scan_scsi_devices(struct pqi_ctrl_info *ctrl_info)
2332{
66f1c2b4
KB		 2333 int rc;
2334 int mutex_acquired;
6c223761
KB		 2335
2336 if (pqi_ctrl_offline(ctrl_info))
2337 return -ENXIO;
2338
66f1c2b4
KB		 2339 mutex_acquired = mutex_trylock(&ctrl_info->scan_mutex);
2340
2341 if (!mutex_acquired) {
2342 if (pqi_ctrl_scan_blocked(ctrl_info))
2343 return -EBUSY;
5f310425 2344 pqi_schedule_rescan_worker_delayed(ctrl_info);
66f1c2b4 2345 return -EINPROGRESS;
530dd8a7 2346 }
6c223761 2347
66f1c2b4
KB		 2348 rc = pqi_update_scsi_devices(ctrl_info);
2349 if (rc && !pqi_ctrl_scan_blocked(ctrl_info))
2350 pqi_schedule_rescan_worker_delayed(ctrl_info);
2351
2352 mutex_unlock(&ctrl_info->scan_mutex);
2353
6c223761
KB		 2354 return rc;
2355}
2356
2357static void pqi_scan_start(struct Scsi_Host *shost)
2358{
4fd22c13
MR		 2359 struct pqi_ctrl_info *ctrl_info;
2360
2361 ctrl_info = shost_to_hba(shost);
4fd22c13
MR		 2362
2363 pqi_scan_scsi_devices(ctrl_info);
6c223761
KB		 2364}
2365
2366/* Returns TRUE if scan is finished. */
2367
2368static int pqi_scan_finished(struct Scsi_Host *shost,
2369 unsigned long elapsed_time)
2370{
2371 struct pqi_ctrl_info *ctrl_info;
2372
2373 ctrl_info = shost_priv(shost);
2374
2375 return !mutex_is_locked(&ctrl_info->scan_mutex);
2376}
2377
583891c9
KB		 2378static inline void pqi_set_encryption_info(struct pqi_encryption_info *encryption_info,
2379 struct raid_map *raid_map, u64 first_block)
6c223761
KB		 2380{
2381 u32 volume_blk_size;
2382
2383 /*
2384 * Set the encryption tweak values based on logical block address.
2385 * If the block size is 512, the tweak value is equal to the LBA.
2386 * For other block sizes, tweak value is (LBA * block size) / 512.
2387 */
2388 volume_blk_size = get_unaligned_le32(&raid_map->volume_blk_size);
2389 if (volume_blk_size != 512)
2390 first_block = (first_block * volume_blk_size) / 512;
2391
2392 encryption_info->data_encryption_key_index =
2393 get_unaligned_le16(&raid_map->data_encryption_key_index);
2394 encryption_info->encrypt_tweak_lower = lower_32_bits(first_block);
2395 encryption_info->encrypt_tweak_upper = upper_32_bits(first_block);
2396}
2397
2398/*
588a63fe 2399 * Attempt to perform RAID bypass mapping for a logical volume I/O.
6c223761
KB		 2400 */
2401
6702d2c4
DB		 2402static bool pqi_aio_raid_level_supported(struct pqi_ctrl_info *ctrl_info,
2403 struct pqi_scsi_dev_raid_map_data *rmd)
281a817f
DB		 2404{
2405 bool is_supported = true;
2406
2407 switch (rmd->raid_level) {
2408 case SA_RAID_0:
2409 break;
2410 case SA_RAID_1:
f6cc2a77
KB		 2411 if (rmd->is_write && (!ctrl_info->enable_r1_writes ||
2412 rmd->data_length > ctrl_info->max_write_raid_1_10_2drive))
2413 is_supported = false;
2414 break;
7a012c23 2415 case SA_RAID_TRIPLE:
f6cc2a77
KB		 2416 if (rmd->is_write && (!ctrl_info->enable_r1_writes ||
2417 rmd->data_length > ctrl_info->max_write_raid_1_10_3drive))
281a817f
DB		 2418 is_supported = false;
2419 break;
2420 case SA_RAID_5:
f6cc2a77
KB		 2421 if (rmd->is_write && (!ctrl_info->enable_r5_writes ||
2422 rmd->data_length > ctrl_info->max_write_raid_5_6))
6702d2c4
DB		 2423 is_supported = false;
2424 break;
281a817f 2425 case SA_RAID_6:
f6cc2a77
KB		 2426 if (rmd->is_write && (!ctrl_info->enable_r6_writes ||
2427 rmd->data_length > ctrl_info->max_write_raid_5_6))
281a817f
DB		 2428 is_supported = false;
2429 break;
281a817f
DB		 2430 default:
2431 is_supported = false;
f6cc2a77 2432 break;
281a817f
DB		 2433 }
2434
2435 return is_supported;
2436}
2437
6c223761
KB		 2438#define PQI_RAID_BYPASS_INELIGIBLE 1
2439
281a817f 2440static int pqi_get_aio_lba_and_block_count(struct scsi_cmnd *scmd,
583891c9 2441 struct pqi_scsi_dev_raid_map_data *rmd)
6c223761 2442{
6c223761
KB		 2443 /* Check for valid opcode, get LBA and block count. */
2444 switch (scmd->cmnd[0]) {
2445 case WRITE_6:
281a817f 2446 rmd->is_write = true;
df561f66 2447 fallthrough;
6c223761 2448 case READ_6:
281a817f 2449 rmd->first_block = (u64)(((scmd->cmnd[1] & 0x1f) << 16) |
e018ef57 2450 (scmd->cmnd[2] << 8) | scmd->cmnd[3]);
281a817f
DB		 2451 rmd->block_cnt = (u32)scmd->cmnd[4];
2452 if (rmd->block_cnt == 0)
2453 rmd->block_cnt = 256;
6c223761
KB		 2454 break;
2455 case WRITE_10:
281a817f 2456 rmd->is_write = true;
df561f66 2457 fallthrough;
6c223761 2458 case READ_10:
281a817f
DB		 2459 rmd->first_block = (u64)get_unaligned_be32(&scmd->cmnd[2]);
2460 rmd->block_cnt = (u32)get_unaligned_be16(&scmd->cmnd[7]);
6c223761
KB		 2461 break;
2462 case WRITE_12:
281a817f 2463 rmd->is_write = true;
df561f66 2464 fallthrough;
6c223761 2465 case READ_12:
281a817f
DB		 2466 rmd->first_block = (u64)get_unaligned_be32(&scmd->cmnd[2]);
2467 rmd->block_cnt = get_unaligned_be32(&scmd->cmnd[6]);
6c223761
KB		 2468 break;
2469 case WRITE_16:
281a817f 2470 rmd->is_write = true;
df561f66 2471 fallthrough;
6c223761 2472 case READ_16:
281a817f
DB		 2473 rmd->first_block = get_unaligned_be64(&scmd->cmnd[2]);
2474 rmd->block_cnt = get_unaligned_be32(&scmd->cmnd[10]);
6c223761
KB		 2475 break;
2476 default:
2477 /* Process via normal I/O path. */
2478 return PQI_RAID_BYPASS_INELIGIBLE;
2479 }
2480
281a817f 2481 put_unaligned_le32(scsi_bufflen(scmd), &rmd->data_length);
6c223761 2482
281a817f
DB		 2483 return 0;
2484}
6c223761 2485
281a817f 2486static int pci_get_aio_common_raid_map_values(struct pqi_ctrl_info *ctrl_info,
583891c9 2487 struct pqi_scsi_dev_raid_map_data *rmd, struct raid_map *raid_map)
281a817f
DB		 2488{
2489#if BITS_PER_LONG == 32
2490 u64 tmpdiv;
2491#endif
2492
2493 rmd->last_block = rmd->first_block + rmd->block_cnt - 1;
6c223761
KB		 2494
2495 /* Check for invalid block or wraparound. */
281a817f
DB		 2496 if (rmd->last_block >=
2497 get_unaligned_le64(&raid_map->volume_blk_cnt) ||
2498 rmd->last_block < rmd->first_block)
6c223761
KB		 2499 return PQI_RAID_BYPASS_INELIGIBLE;
2500
281a817f 2501 rmd->data_disks_per_row =
583891c9 2502 get_unaligned_le16(&raid_map->data_disks_per_row);
281a817f
DB		 2503 rmd->strip_size = get_unaligned_le16(&raid_map->strip_size);
2504 rmd->layout_map_count = get_unaligned_le16(&raid_map->layout_map_count);
6c223761
KB		 2505
2506 /* Calculate stripe information for the request. */
281a817f 2507 rmd->blocks_per_row = rmd->data_disks_per_row * rmd->strip_size;
667298ce
DB		 2508 if (rmd->blocks_per_row == 0) /* Used as a divisor in many calculations */
2509 return PQI_RAID_BYPASS_INELIGIBLE;
6c223761 2510#if BITS_PER_LONG == 32
281a817f
DB		 2511 tmpdiv = rmd->first_block;
2512 do_div(tmpdiv, rmd->blocks_per_row);
2513 rmd->first_row = tmpdiv;
2514 tmpdiv = rmd->last_block;
2515 do_div(tmpdiv, rmd->blocks_per_row);
2516 rmd->last_row = tmpdiv;
2517 rmd->first_row_offset = (u32)(rmd->first_block - (rmd->first_row * rmd->blocks_per_row));
2518 rmd->last_row_offset = (u32)(rmd->last_block - (rmd->last_row * rmd->blocks_per_row));
2519 tmpdiv = rmd->first_row_offset;
2520 do_div(tmpdiv, rmd->strip_size);
2521 rmd->first_column = tmpdiv;
2522 tmpdiv = rmd->last_row_offset;
2523 do_div(tmpdiv, rmd->strip_size);
2524 rmd->last_column = tmpdiv;
6c223761 2525#else
281a817f
DB		 2526 rmd->first_row = rmd->first_block / rmd->blocks_per_row;
2527 rmd->last_row = rmd->last_block / rmd->blocks_per_row;
2528 rmd->first_row_offset = (u32)(rmd->first_block -
583891c9 2529 (rmd->first_row * rmd->blocks_per_row));
281a817f 2530 rmd->last_row_offset = (u32)(rmd->last_block - (rmd->last_row *
583891c9 2531 rmd->blocks_per_row));
281a817f
DB		 2532 rmd->first_column = rmd->first_row_offset / rmd->strip_size;
2533 rmd->last_column = rmd->last_row_offset / rmd->strip_size;
6c223761
KB		 2534#endif
2535
2536 /* If this isn't a single row/column then give to the controller. */
281a817f 2537 if (rmd->first_row != rmd->last_row ||
583891c9 2538 rmd->first_column != rmd->last_column)
6c223761
KB		 2539 return PQI_RAID_BYPASS_INELIGIBLE;
2540
2541 /* Proceeding with driver mapping. */
281a817f 2542 rmd->total_disks_per_row = rmd->data_disks_per_row +
6c223761 2543 get_unaligned_le16(&raid_map->metadata_disks_per_row);
281a817f
DB		 2544 rmd->map_row = ((u32)(rmd->first_row >>
2545 raid_map->parity_rotation_shift)) %
6c223761 2546 get_unaligned_le16(&raid_map->row_cnt);
281a817f 2547 rmd->map_index = (rmd->map_row * rmd->total_disks_per_row) +
583891c9 2548 rmd->first_column;
6c223761 2549
281a817f
DB		 2550 return 0;
2551}
6c223761 2552
281a817f 2553static int pqi_calc_aio_r5_or_r6(struct pqi_scsi_dev_raid_map_data *rmd,
583891c9 2554 struct raid_map *raid_map)
281a817f 2555{
6c223761 2556#if BITS_PER_LONG == 32
281a817f 2557 u64 tmpdiv;
6c223761 2558#endif
6c223761 2559
667298ce
DB		 2560 if (rmd->blocks_per_row == 0) /* Used as a divisor in many calculations */
2561 return PQI_RAID_BYPASS_INELIGIBLE;
2562
281a817f 2563 /* RAID 50/60 */
583891c9 2564 /* Verify first and last block are in same RAID group. */
281a817f 2565 rmd->stripesize = rmd->blocks_per_row * rmd->layout_map_count;
6c223761 2566#if BITS_PER_LONG == 32
281a817f
DB		 2567 tmpdiv = rmd->first_block;
2568 rmd->first_group = do_div(tmpdiv, rmd->stripesize);
2569 tmpdiv = rmd->first_group;
2570 do_div(tmpdiv, rmd->blocks_per_row);
2571 rmd->first_group = tmpdiv;
2572 tmpdiv = rmd->last_block;
2573 rmd->last_group = do_div(tmpdiv, rmd->stripesize);
2574 tmpdiv = rmd->last_group;
2575 do_div(tmpdiv, rmd->blocks_per_row);
2576 rmd->last_group = tmpdiv;
6c223761 2577#else
281a817f
DB		 2578 rmd->first_group = (rmd->first_block % rmd->stripesize) / rmd->blocks_per_row;
2579 rmd->last_group = (rmd->last_block % rmd->stripesize) / rmd->blocks_per_row;
6c223761 2580#endif
281a817f
DB		 2581 if (rmd->first_group != rmd->last_group)
2582 return PQI_RAID_BYPASS_INELIGIBLE;
6c223761 2583
583891c9 2584 /* Verify request is in a single row of RAID 5/6. */
6c223761 2585#if BITS_PER_LONG == 32
281a817f
DB		 2586 tmpdiv = rmd->first_block;
2587 do_div(tmpdiv, rmd->stripesize);
2588 rmd->first_row = tmpdiv;
2589 rmd->r5or6_first_row = tmpdiv;
2590 tmpdiv = rmd->last_block;
2591 do_div(tmpdiv, rmd->stripesize);
2592 rmd->r5or6_last_row = tmpdiv;
6c223761 2593#else
281a817f
DB		 2594 rmd->first_row = rmd->r5or6_first_row =
2595 rmd->first_block / rmd->stripesize;
2596 rmd->r5or6_last_row = rmd->last_block / rmd->stripesize;
6c223761 2597#endif
281a817f
DB		 2598 if (rmd->r5or6_first_row != rmd->r5or6_last_row)
2599 return PQI_RAID_BYPASS_INELIGIBLE;
6c223761 2600
583891c9 2601 /* Verify request is in a single column. */
6c223761 2602#if BITS_PER_LONG == 32
281a817f
DB		 2603 tmpdiv = rmd->first_block;
2604 rmd->first_row_offset = do_div(tmpdiv, rmd->stripesize);
2605 tmpdiv = rmd->first_row_offset;
2606 rmd->first_row_offset = (u32)do_div(tmpdiv, rmd->blocks_per_row);
2607 rmd->r5or6_first_row_offset = rmd->first_row_offset;
2608 tmpdiv = rmd->last_block;
2609 rmd->r5or6_last_row_offset = do_div(tmpdiv, rmd->stripesize);
2610 tmpdiv = rmd->r5or6_last_row_offset;
2611 rmd->r5or6_last_row_offset = do_div(tmpdiv, rmd->blocks_per_row);
2612 tmpdiv = rmd->r5or6_first_row_offset;
2613 do_div(tmpdiv, rmd->strip_size);
2614 rmd->first_column = rmd->r5or6_first_column = tmpdiv;
2615 tmpdiv = rmd->r5or6_last_row_offset;
2616 do_div(tmpdiv, rmd->strip_size);
2617 rmd->r5or6_last_column = tmpdiv;
6c223761 2618#else
281a817f 2619 rmd->first_row_offset = rmd->r5or6_first_row_offset =
583891c9
KB		 2620 (u32)((rmd->first_block % rmd->stripesize) %
2621 rmd->blocks_per_row);
281a817f
DB		 2622
2623 rmd->r5or6_last_row_offset =
2624 (u32)((rmd->last_block % rmd->stripesize) %
2625 rmd->blocks_per_row);
2626
2627 rmd->first_column =
583891c9 2628 rmd->r5or6_first_row_offset / rmd->strip_size;
281a817f
DB		 2629 rmd->r5or6_first_column = rmd->first_column;
2630 rmd->r5or6_last_column = rmd->r5or6_last_row_offset / rmd->strip_size;
2631#endif
2632 if (rmd->r5or6_first_column != rmd->r5or6_last_column)
2633 return PQI_RAID_BYPASS_INELIGIBLE;
2634
583891c9 2635 /* Request is eligible. */
281a817f
DB		 2636 rmd->map_row =
2637 ((u32)(rmd->first_row >> raid_map->parity_rotation_shift)) %
2638 get_unaligned_le16(&raid_map->row_cnt);
6c223761 2639
281a817f
DB		 2640 rmd->map_index = (rmd->first_group *
2641 (get_unaligned_le16(&raid_map->row_cnt) *
2642 rmd->total_disks_per_row)) +
2643 (rmd->map_row * rmd->total_disks_per_row) + rmd->first_column;
6c223761 2644
6702d2c4
DB		 2645 if (rmd->is_write) {
2646 u32 index;
6c223761 2647
6702d2c4
DB		 2648 /*
2649 * p_parity_it_nexus and q_parity_it_nexus are pointers to the
2650 * parity entries inside the device's raid_map.
2651 *
2652 * A device's RAID map is bounded by: number of RAID disks squared.
2653 *
2654 * The devices RAID map size is checked during device
2655 * initialization.
2656 */
2657 index = DIV_ROUND_UP(rmd->map_index + 1, rmd->total_disks_per_row);
2658 index *= rmd->total_disks_per_row;
2659 index -= get_unaligned_le16(&raid_map->metadata_disks_per_row);
2660
2661 rmd->p_parity_it_nexus = raid_map->disk_data[index].aio_handle;
2662 if (rmd->raid_level == SA_RAID_6) {
2663 rmd->q_parity_it_nexus = raid_map->disk_data[index + 1].aio_handle;
2664 rmd->xor_mult = raid_map->disk_data[rmd->map_index].xor_mult[1];
2665 }
6702d2c4
DB		 2666#if BITS_PER_LONG == 32
2667 tmpdiv = rmd->first_block;
2668 do_div(tmpdiv, rmd->blocks_per_row);
2669 rmd->row = tmpdiv;
2670#else
2671 rmd->row = rmd->first_block / rmd->blocks_per_row;
6c223761 2672#endif
6702d2c4
DB		 2673 }
2674
281a817f
DB		 2675 return 0;
2676}
2677
2678static void pqi_set_aio_cdb(struct pqi_scsi_dev_raid_map_data *rmd)
2679{
2680 /* Build the new CDB for the physical disk I/O. */
2681 if (rmd->disk_block > 0xffffffff) {
2682 rmd->cdb[0] = rmd->is_write ? WRITE_16 : READ_16;
2683 rmd->cdb[1] = 0;
2684 put_unaligned_be64(rmd->disk_block, &rmd->cdb[2]);
2685 put_unaligned_be32(rmd->disk_block_cnt, &rmd->cdb[10]);
2686 rmd->cdb[14] = 0;
2687 rmd->cdb[15] = 0;
2688 rmd->cdb_length = 16;
2689 } else {
2690 rmd->cdb[0] = rmd->is_write ? WRITE_10 : READ_10;
2691 rmd->cdb[1] = 0;
2692 put_unaligned_be32((u32)rmd->disk_block, &rmd->cdb[2]);
2693 rmd->cdb[6] = 0;
2694 put_unaligned_be16((u16)rmd->disk_block_cnt, &rmd->cdb[7]);
2695 rmd->cdb[9] = 0;
2696 rmd->cdb_length = 10;
2697 }
2698}
2699
7a012c23 2700static void pqi_calc_aio_r1_nexus(struct raid_map *raid_map,
583891c9 2701 struct pqi_scsi_dev_raid_map_data *rmd)
7a012c23
DB		 2702{
2703 u32 index;
2704 u32 group;
2705
2706 group = rmd->map_index / rmd->data_disks_per_row;
2707
2708 index = rmd->map_index - (group * rmd->data_disks_per_row);
2709 rmd->it_nexus[0] = raid_map->disk_data[index].aio_handle;
2710 index += rmd->data_disks_per_row;
2711 rmd->it_nexus[1] = raid_map->disk_data[index].aio_handle;
2712 if (rmd->layout_map_count > 2) {
2713 index += rmd->data_disks_per_row;
2714 rmd->it_nexus[2] = raid_map->disk_data[index].aio_handle;
2715 }
2716
2717 rmd->num_it_nexus_entries = rmd->layout_map_count;
2718}
2719
281a817f
DB		 2720static int pqi_raid_bypass_submit_scsi_cmd(struct pqi_ctrl_info *ctrl_info,
2721 struct pqi_scsi_dev *device, struct scsi_cmnd *scmd,
2722 struct pqi_queue_group *queue_group)
2723{
281a817f 2724 int rc;
7a012c23
DB		 2725 struct raid_map *raid_map;
2726 u32 group;
2727 u32 next_bypass_group;
281a817f
DB		 2728 struct pqi_encryption_info *encryption_info_ptr;
2729 struct pqi_encryption_info encryption_info;
583891c9 2730 struct pqi_scsi_dev_raid_map_data rmd = { 0 };
281a817f
DB		 2731
2732 rc = pqi_get_aio_lba_and_block_count(scmd, &rmd);
2733 if (rc)
2734 return PQI_RAID_BYPASS_INELIGIBLE;
2735
2736 rmd.raid_level = device->raid_level;
6c223761 2737
6702d2c4 2738 if (!pqi_aio_raid_level_supported(ctrl_info, &rmd))
281a817f
DB		 2739 return PQI_RAID_BYPASS_INELIGIBLE;
2740
2741 if (unlikely(rmd.block_cnt == 0))
2742 return PQI_RAID_BYPASS_INELIGIBLE;
2743
2744 raid_map = device->raid_map;
6c223761 2745
281a817f
DB		 2746 rc = pci_get_aio_common_raid_map_values(ctrl_info, &rmd, raid_map);
2747 if (rc)
2748 return PQI_RAID_BYPASS_INELIGIBLE;
6c223761 2749
7a012c23
DB		 2750 if (device->raid_level == SA_RAID_1 ||
2751 device->raid_level == SA_RAID_TRIPLE) {
2752 if (rmd.is_write) {
2753 pqi_calc_aio_r1_nexus(raid_map, &rmd);
2754 } else {
2755 group = device->next_bypass_group;
2756 next_bypass_group = group + 1;
2757 if (next_bypass_group >= rmd.layout_map_count)
2758 next_bypass_group = 0;
2759 device->next_bypass_group = next_bypass_group;
2760 rmd.map_index += group * rmd.data_disks_per_row;
2761 }
281a817f 2762 } else if ((device->raid_level == SA_RAID_5 ||
6702d2c4
DB		 2763 device->raid_level == SA_RAID_6) &&
2764 (rmd.layout_map_count > 1 || rmd.is_write)) {
281a817f
DB		 2765 rc = pqi_calc_aio_r5_or_r6(&rmd, raid_map);
2766 if (rc)
2767 return PQI_RAID_BYPASS_INELIGIBLE;
6c223761
KB		 2768 }
2769
281a817f
DB		 2770 if (unlikely(rmd.map_index >= RAID_MAP_MAX_ENTRIES))
2771 return PQI_RAID_BYPASS_INELIGIBLE;
2772
2773 rmd.aio_handle = raid_map->disk_data[rmd.map_index].aio_handle;
2774 rmd.disk_block = get_unaligned_le64(&raid_map->disk_starting_blk) +
2775 rmd.first_row * rmd.strip_size +
2776 (rmd.first_row_offset - rmd.first_column * rmd.strip_size);
2777 rmd.disk_block_cnt = rmd.block_cnt;
6c223761
KB		 2778
2779 /* Handle differing logical/physical block sizes. */
2780 if (raid_map->phys_blk_shift) {
281a817f
DB		 2781 rmd.disk_block <<= raid_map->phys_blk_shift;
2782 rmd.disk_block_cnt <<= raid_map->phys_blk_shift;
6c223761
KB		 2783 }
2784
281a817f 2785 if (unlikely(rmd.disk_block_cnt > 0xffff))
6c223761
KB		 2786 return PQI_RAID_BYPASS_INELIGIBLE;
2787
281a817f 2788 pqi_set_aio_cdb(&rmd);
6c223761 2789
583891c9 2790 if (get_unaligned_le16(&raid_map->flags) & RAID_MAP_ENCRYPTION_ENABLED) {
f6cc2a77
KB		 2791 if (rmd.data_length > device->max_transfer_encrypted)
2792 return PQI_RAID_BYPASS_INELIGIBLE;
583891c9 2793 pqi_set_encryption_info(&encryption_info, raid_map, rmd.first_block);
6c223761
KB		 2794 encryption_info_ptr = &encryption_info;
2795 } else {
2796 encryption_info_ptr = NULL;
2797 }
2798
6702d2c4
DB		 2799 if (rmd.is_write) {
2800 switch (device->raid_level) {
7a012c23
DB		 2801 case SA_RAID_1:
2802 case SA_RAID_TRIPLE:
2803 return pqi_aio_submit_r1_write_io(ctrl_info, scmd, queue_group,
2804 encryption_info_ptr, device, &rmd);
6702d2c4
DB		 2805 case SA_RAID_5:
2806 case SA_RAID_6:
2807 return pqi_aio_submit_r56_write_io(ctrl_info, scmd, queue_group,
583891c9 2808 encryption_info_ptr, device, &rmd);
6702d2c4 2809 }
6702d2c4
DB		 2810 }
2811
f6cc2a77
KB		 2812 return pqi_aio_submit_io(ctrl_info, scmd, rmd.aio_handle,
2813 rmd.cdb, rmd.cdb_length, queue_group,
2814 encryption_info_ptr, true);
6c223761
KB		 2815}
2816
2817#define PQI_STATUS_IDLE 0x0
2818
2819#define PQI_CREATE_ADMIN_QUEUE_PAIR 1
2820#define PQI_DELETE_ADMIN_QUEUE_PAIR 2
2821
2822#define PQI_DEVICE_STATE_POWER_ON_AND_RESET 0x0
2823#define PQI_DEVICE_STATE_STATUS_AVAILABLE 0x1
2824#define PQI_DEVICE_STATE_ALL_REGISTERS_READY 0x2
2825#define PQI_DEVICE_STATE_ADMIN_QUEUE_PAIR_READY 0x3
2826#define PQI_DEVICE_STATE_ERROR 0x4
2827
2828#define PQI_MODE_READY_TIMEOUT_SECS 30
2829#define PQI_MODE_READY_POLL_INTERVAL_MSECS 1
2830
2831static int pqi_wait_for_pqi_mode_ready(struct pqi_ctrl_info *ctrl_info)
2832{
2833 struct pqi_device_registers __iomem *pqi_registers;
2834 unsigned long timeout;
2835 u64 signature;
2836 u8 status;
2837
2838 pqi_registers = ctrl_info->pqi_registers;
4fd22c13 2839 timeout = (PQI_MODE_READY_TIMEOUT_SECS * PQI_HZ) + jiffies;
6c223761
KB		 2840
2841 while (1) {
2842 signature = readq(&pqi_registers->signature);
2843 if (memcmp(&signature, PQI_DEVICE_SIGNATURE,
2844 sizeof(signature)) == 0)
2845 break;
2846 if (time_after(jiffies, timeout)) {
2847 dev_err(&ctrl_info->pci_dev->dev,
2848 "timed out waiting for PQI signature\n");
2849 return -ETIMEDOUT;
2850 }
2851 msleep(PQI_MODE_READY_POLL_INTERVAL_MSECS);
2852 }
2853
2854 while (1) {
2855 status = readb(&pqi_registers->function_and_status_code);
2856 if (status == PQI_STATUS_IDLE)
2857 break;
2858 if (time_after(jiffies, timeout)) {
2859 dev_err(&ctrl_info->pci_dev->dev,
2860 "timed out waiting for PQI IDLE\n");
2861 return -ETIMEDOUT;
2862 }
2863 msleep(PQI_MODE_READY_POLL_INTERVAL_MSECS);
2864 }
2865
2866 while (1) {
2867 if (readl(&pqi_registers->device_status) ==
2868 PQI_DEVICE_STATE_ALL_REGISTERS_READY)
2869 break;
2870 if (time_after(jiffies, timeout)) {
2871 dev_err(&ctrl_info->pci_dev->dev,
2872 "timed out waiting for PQI all registers ready\n");
2873 return -ETIMEDOUT;
2874 }
2875 msleep(PQI_MODE_READY_POLL_INTERVAL_MSECS);
2876 }
2877
2878 return 0;
2879}
2880
2881static inline void pqi_aio_path_disabled(struct pqi_io_request *io_request)
2882{
2883 struct pqi_scsi_dev *device;
2884
2885 device = io_request->scmd->device->hostdata;
588a63fe 2886 device->raid_bypass_enabled = false;
376fb880 2887 device->aio_enabled = false;
6c223761
KB		 2888}
2889
d87d5474 2890static inline void pqi_take_device_offline(struct scsi_device *sdev, char *path)
6c223761
KB		 2891{
2892 struct pqi_ctrl_info *ctrl_info;
e58081a7 2893 struct pqi_scsi_dev *device;
6c223761 2894
03b288cf
KB		 2895 device = sdev->hostdata;
2896 if (device->device_offline)
2897 return;
2898
2899 device->device_offline = true;
03b288cf
KB		 2900 ctrl_info = shost_to_hba(sdev->host);
2901 pqi_schedule_rescan_worker(ctrl_info);
a9a68101 2902 dev_err(&ctrl_info->pci_dev->dev, "re-scanning %s scsi %d:%d:%d:%d\n",
03b288cf
KB		 2903 path, ctrl_info->scsi_host->host_no, device->bus,
2904 device->target, device->lun);
6c223761
KB		 2905}
2906
2907static void pqi_process_raid_io_error(struct pqi_io_request *io_request)
2908{
2909 u8 scsi_status;
2910 u8 host_byte;
2911 struct scsi_cmnd *scmd;
2912 struct pqi_raid_error_info *error_info;
2913 size_t sense_data_length;
2914 int residual_count;
2915 int xfer_count;
2916 struct scsi_sense_hdr sshdr;
2917
2918 scmd = io_request->scmd;
2919 if (!scmd)
2920 return;
2921
2922 error_info = io_request->error_info;
2923 scsi_status = error_info->status;
2924 host_byte = DID_OK;
2925
f5b63206
KB		 2926 switch (error_info->data_out_result) {
2927 case PQI_DATA_IN_OUT_GOOD:
2928 break;
2929 case PQI_DATA_IN_OUT_UNDERFLOW:
6c223761
KB		 2930 xfer_count =
2931 get_unaligned_le32(&error_info->data_out_transferred);
2932 residual_count = scsi_bufflen(scmd) - xfer_count;
2933 scsi_set_resid(scmd, residual_count);
2934 if (xfer_count < scmd->underflow)
2935 host_byte = DID_SOFT_ERROR;
f5b63206
KB		 2936 break;
2937 case PQI_DATA_IN_OUT_UNSOLICITED_ABORT:
2938 case PQI_DATA_IN_OUT_ABORTED:
2939 host_byte = DID_ABORT;
2940 break;
2941 case PQI_DATA_IN_OUT_TIMEOUT:
2942 host_byte = DID_TIME_OUT;
2943 break;
2944 case PQI_DATA_IN_OUT_BUFFER_OVERFLOW:
2945 case PQI_DATA_IN_OUT_PROTOCOL_ERROR:
2946 case PQI_DATA_IN_OUT_BUFFER_ERROR:
2947 case PQI_DATA_IN_OUT_BUFFER_OVERFLOW_DESCRIPTOR_AREA:
2948 case PQI_DATA_IN_OUT_BUFFER_OVERFLOW_BRIDGE:
2949 case PQI_DATA_IN_OUT_ERROR:
2950 case PQI_DATA_IN_OUT_HARDWARE_ERROR:
2951 case PQI_DATA_IN_OUT_PCIE_FABRIC_ERROR:
2952 case PQI_DATA_IN_OUT_PCIE_COMPLETION_TIMEOUT:
2953 case PQI_DATA_IN_OUT_PCIE_COMPLETER_ABORT_RECEIVED:
2954 case PQI_DATA_IN_OUT_PCIE_UNSUPPORTED_REQUEST_RECEIVED:
2955 case PQI_DATA_IN_OUT_PCIE_ECRC_CHECK_FAILED:
2956 case PQI_DATA_IN_OUT_PCIE_UNSUPPORTED_REQUEST:
2957 case PQI_DATA_IN_OUT_PCIE_ACS_VIOLATION:
2958 case PQI_DATA_IN_OUT_PCIE_TLP_PREFIX_BLOCKED:
2959 case PQI_DATA_IN_OUT_PCIE_POISONED_MEMORY_READ:
2960 default:
2961 host_byte = DID_ERROR;
2962 break;
6c223761
KB		 2963 }
2964
2965 sense_data_length = get_unaligned_le16(&error_info->sense_data_length);
2966 if (sense_data_length == 0)
2967 sense_data_length =
2968 get_unaligned_le16(&error_info->response_data_length);
2969 if (sense_data_length) {
2970 if (sense_data_length > sizeof(error_info->data))
2971 sense_data_length = sizeof(error_info->data);
2972
2973 if (scsi_status == SAM_STAT_CHECK_CONDITION &&
2974 scsi_normalize_sense(error_info->data,
2975 sense_data_length, &sshdr) &&
2976 sshdr.sense_key == HARDWARE_ERROR &&
8ef860ae 2977 sshdr.asc == 0x3e) {
441b7195
EV		 2978 struct pqi_ctrl_info *ctrl_info = shost_to_hba(scmd->device->host);
2979 struct pqi_scsi_dev *device = scmd->device->hostdata;
2980
8ef860ae
EV		 2981 switch (sshdr.ascq) {
2982 case 0x1: /* LOGICAL UNIT FAILURE */
2983 if (printk_ratelimit())
2984 scmd_printk(KERN_ERR, scmd, "received 'logical unit failure' from controller for scsi %d:%d:%d:%d\n",
2985 ctrl_info->scsi_host->host_no, device->bus, device->target, device->lun);
2986 pqi_take_device_offline(scmd->device, "RAID");
2987 host_byte = DID_NO_CONNECT;
2988 break;
2989
2990 default: /* See http://www.t10.org/lists/asc-num.htm#ASC_3E */
2991 if (printk_ratelimit())
2992 scmd_printk(KERN_ERR, scmd, "received unhandled error %d from controller for scsi %d:%d:%d:%d\n",
2993 sshdr.ascq, ctrl_info->scsi_host->host_no, device->bus, device->target, device->lun);
2994 break;
2995 }
6c223761
KB		 2996 }
2997
2998 if (sense_data_length > SCSI_SENSE_BUFFERSIZE)
2999 sense_data_length = SCSI_SENSE_BUFFERSIZE;
3000 memcpy(scmd->sense_buffer, error_info->data,
3001 sense_data_length);
3002 }
3003
3004 scmd->result = scsi_status;
3005 set_host_byte(scmd, host_byte);
3006}
3007
3008static void pqi_process_aio_io_error(struct pqi_io_request *io_request)
3009{
3010 u8 scsi_status;
3011 u8 host_byte;
3012 struct scsi_cmnd *scmd;
3013 struct pqi_aio_error_info *error_info;
3014 size_t sense_data_length;
3015 int residual_count;
3016 int xfer_count;
3017 bool device_offline;
3018
3019 scmd = io_request->scmd;
3020 error_info = io_request->error_info;
3021 host_byte = DID_OK;
3022 sense_data_length = 0;
3023 device_offline = false;
3024
3025 switch (error_info->service_response) {
3026 case PQI_AIO_SERV_RESPONSE_COMPLETE:
3027 scsi_status = error_info->status;
3028 break;
3029 case PQI_AIO_SERV_RESPONSE_FAILURE:
3030 switch (error_info->status) {
3031 case PQI_AIO_STATUS_IO_ABORTED:
3032 scsi_status = SAM_STAT_TASK_ABORTED;
3033 break;
3034 case PQI_AIO_STATUS_UNDERRUN:
3035 scsi_status = SAM_STAT_GOOD;
3036 residual_count = get_unaligned_le32(
3037 &error_info->residual_count);
3038 scsi_set_resid(scmd, residual_count);
3039 xfer_count = scsi_bufflen(scmd) - residual_count;
3040 if (xfer_count < scmd->underflow)
3041 host_byte = DID_SOFT_ERROR;
3042 break;
3043 case PQI_AIO_STATUS_OVERRUN:
3044 scsi_status = SAM_STAT_GOOD;
3045 break;
3046 case PQI_AIO_STATUS_AIO_PATH_DISABLED:
3047 pqi_aio_path_disabled(io_request);
3048 scsi_status = SAM_STAT_GOOD;
3049 io_request->status = -EAGAIN;
3050 break;
3051 case PQI_AIO_STATUS_NO_PATH_TO_DEVICE:
3052 case PQI_AIO_STATUS_INVALID_DEVICE:
376fb880
KB		 3053 if (!io_request->raid_bypass) {
3054 device_offline = true;
3055 pqi_take_device_offline(scmd->device, "AIO");
3056 host_byte = DID_NO_CONNECT;
3057 }
6c223761
KB		 3058 scsi_status = SAM_STAT_CHECK_CONDITION;
3059 break;
3060 case PQI_AIO_STATUS_IO_ERROR:
3061 default:
3062 scsi_status = SAM_STAT_CHECK_CONDITION;
3063 break;
3064 }
3065 break;
3066 case PQI_AIO_SERV_RESPONSE_TMF_COMPLETE:
3067 case PQI_AIO_SERV_RESPONSE_TMF_SUCCEEDED:
3068 scsi_status = SAM_STAT_GOOD;
3069 break;
3070 case PQI_AIO_SERV_RESPONSE_TMF_REJECTED:
3071 case PQI_AIO_SERV_RESPONSE_TMF_INCORRECT_LUN:
3072 default:
3073 scsi_status = SAM_STAT_CHECK_CONDITION;
3074 break;
3075 }
3076
3077 if (error_info->data_present) {
3078 sense_data_length =
3079 get_unaligned_le16(&error_info->data_length);
3080 if (sense_data_length) {
3081 if (sense_data_length > sizeof(error_info->data))
3082 sense_data_length = sizeof(error_info->data);
3083 if (sense_data_length > SCSI_SENSE_BUFFERSIZE)
3084 sense_data_length = SCSI_SENSE_BUFFERSIZE;
3085 memcpy(scmd->sense_buffer, error_info->data,
3086 sense_data_length);
3087 }
3088 }
3089
3090 if (device_offline && sense_data_length == 0)
f2b1e9c6 3091 scsi_build_sense(scmd, 0, HARDWARE_ERROR, 0x3e, 0x1);
6c223761
KB		 3092
3093 scmd->result = scsi_status;
3094 set_host_byte(scmd, host_byte);
3095}
3096
3097static void pqi_process_io_error(unsigned int iu_type,
3098 struct pqi_io_request *io_request)
3099{
3100 switch (iu_type) {
3101 case PQI_RESPONSE_IU_RAID_PATH_IO_ERROR:
3102 pqi_process_raid_io_error(io_request);
3103 break;
3104 case PQI_RESPONSE_IU_AIO_PATH_IO_ERROR:
3105 pqi_process_aio_io_error(io_request);
3106 break;
3107 }
3108}
3109
18ff5f08 3110static int pqi_interpret_task_management_response(struct pqi_ctrl_info *ctrl_info,
6c223761
KB		 3111 struct pqi_task_management_response *response)
3112{
3113 int rc;
3114
3115 switch (response->response_code) {
b17f0486
KB		 3116 case SOP_TMF_COMPLETE:
3117 case SOP_TMF_FUNCTION_SUCCEEDED:
6c223761
KB		 3118 rc = 0;
3119 break;
3406384b
MR		 3120 case SOP_TMF_REJECTED:
3121 rc = -EAGAIN;
3122 break;
6c223761
KB		 3123 default:
3124 rc = -EIO;
3125 break;
3126 }
3127
18ff5f08
KB		 3128 if (rc)
3129 dev_err(&ctrl_info->pci_dev->dev,
3130 "Task Management Function error: %d (response code: %u)\n", rc, response->response_code);
3131
6c223761
KB		 3132 return rc;
3133}
3134
9e68cccc 3135static inline void pqi_invalid_response(struct pqi_ctrl_info *ctrl_info)
6c223761 3136{
9e68cccc
KB		 3137 pqi_take_ctrl_offline(ctrl_info);
3138}
3139
3140static int pqi_process_io_intr(struct pqi_ctrl_info *ctrl_info, struct pqi_queue_group *queue_group)
6c223761 3141{
9e68cccc 3142 int num_responses;
6c223761
KB		 3143 pqi_index_t oq_pi;
3144 pqi_index_t oq_ci;
3145 struct pqi_io_request *io_request;
3146 struct pqi_io_response *response;
3147 u16 request_id;
3148
3149 num_responses = 0;
3150 oq_ci = queue_group->oq_ci_copy;
3151
3152 while (1) {
dac12fbc 3153 oq_pi = readl(queue_group->oq_pi);
9e68cccc
KB		 3154 if (oq_pi >= ctrl_info->num_elements_per_oq) {
3155 pqi_invalid_response(ctrl_info);
3156 dev_err(&ctrl_info->pci_dev->dev,
3157 "I/O interrupt: producer index (%u) out of range (0-%u): consumer index: %u\n",
3158 oq_pi, ctrl_info->num_elements_per_oq - 1, oq_ci);
3159 return -1;
3160 }
6c223761
KB		 3161 if (oq_pi == oq_ci)
3162 break;
3163
3164 num_responses++;
3165 response = queue_group->oq_element_array +
3166 (oq_ci * PQI_OPERATIONAL_OQ_ELEMENT_LENGTH);
3167
3168 request_id = get_unaligned_le16(&response->request_id);
9e68cccc
KB		 3169 if (request_id >= ctrl_info->max_io_slots) {
3170 pqi_invalid_response(ctrl_info);
3171 dev_err(&ctrl_info->pci_dev->dev,
3172 "request ID in response (%u) out of range (0-%u): producer index: %u consumer index: %u\n",
3173 request_id, ctrl_info->max_io_slots - 1, oq_pi, oq_ci);
3174 return -1;
3175 }
6c223761
KB		 3176
3177 io_request = &ctrl_info->io_request_pool[request_id];
9e68cccc
KB		 3178 if (atomic_read(&io_request->refcount) == 0) {
3179 pqi_invalid_response(ctrl_info);
3180 dev_err(&ctrl_info->pci_dev->dev,
3181 "request ID in response (%u) does not match an outstanding I/O request: producer index: %u consumer index: %u\n",
3182 request_id, oq_pi, oq_ci);
3183 return -1;
3184 }
6c223761
KB		 3185
3186 switch (response->header.iu_type) {
3187 case PQI_RESPONSE_IU_RAID_PATH_IO_SUCCESS:
3188 case PQI_RESPONSE_IU_AIO_PATH_IO_SUCCESS:
2ba55c98
KB		 3189 if (io_request->scmd)
3190 io_request->scmd->result = 0;
df561f66 3191 fallthrough;
6c223761
KB		 3192 case PQI_RESPONSE_IU_GENERAL_MANAGEMENT:
3193 break;
b212c251
KB		 3194 case PQI_RESPONSE_IU_VENDOR_GENERAL:
3195 io_request->status =
3196 get_unaligned_le16(
583891c9 3197 &((struct pqi_vendor_general_response *)response)->status);
b212c251 3198 break;
6c223761 3199 case PQI_RESPONSE_IU_TASK_MANAGEMENT:
18ff5f08
KB		 3200 io_request->status = pqi_interpret_task_management_response(ctrl_info,
3201 (void *)response);
6c223761
KB		 3202 break;
3203 case PQI_RESPONSE_IU_AIO_PATH_DISABLED:
3204 pqi_aio_path_disabled(io_request);
3205 io_request->status = -EAGAIN;
3206 break;
3207 case PQI_RESPONSE_IU_RAID_PATH_IO_ERROR:
3208 case PQI_RESPONSE_IU_AIO_PATH_IO_ERROR:
3209 io_request->error_info = ctrl_info->error_buffer +
3210 (get_unaligned_le16(&response->error_index) *
3211 PQI_ERROR_BUFFER_ELEMENT_LENGTH);
9e68cccc 3212 pqi_process_io_error(response->header.iu_type, io_request);
6c223761
KB		 3213 break;
3214 default:
9e68cccc 3215 pqi_invalid_response(ctrl_info);
6c223761 3216 dev_err(&ctrl_info->pci_dev->dev,
9e68cccc
KB		 3217 "unexpected IU type: 0x%x: producer index: %u consumer index: %u\n",
3218 response->header.iu_type, oq_pi, oq_ci);
3219 return -1;
6c223761
KB		 3220 }
3221
9e68cccc 3222 io_request->io_complete_callback(io_request, io_request->context);
6c223761
KB		 3223
3224 /*
3225 * Note that the I/O request structure CANNOT BE TOUCHED after
3226 * returning from the I/O completion callback!
3227 */
6c223761
KB		 3228 oq_ci = (oq_ci + 1) % ctrl_info->num_elements_per_oq;
3229 }
3230
3231 if (num_responses) {
3232 queue_group->oq_ci_copy = oq_ci;
3233 writel(oq_ci, queue_group->oq_ci);
3234 }
3235
3236 return num_responses;
3237}
3238
3239static inline unsigned int pqi_num_elements_free(unsigned int pi,
df7a1fcf 3240 unsigned int ci, unsigned int elements_in_queue)
6c223761
KB		 3241{
3242 unsigned int num_elements_used;
3243
3244 if (pi >= ci)
3245 num_elements_used = pi - ci;
3246 else
3247 num_elements_used = elements_in_queue - ci + pi;
3248
3249 return elements_in_queue - num_elements_used - 1;
3250}
3251
98f87667 3252static void pqi_send_event_ack(struct pqi_ctrl_info *ctrl_info,
6c223761
KB		 3253 struct pqi_event_acknowledge_request *iu, size_t iu_length)
3254{
3255 pqi_index_t iq_pi;
3256 pqi_index_t iq_ci;
3257 unsigned long flags;
3258 void *next_element;
6c223761
KB		 3259 struct pqi_queue_group *queue_group;
3260
3261 queue_group = &ctrl_info->queue_groups[PQI_DEFAULT_QUEUE_GROUP];
3262 put_unaligned_le16(queue_group->oq_id, &iu->header.response_queue_id);
3263
6c223761
KB		 3264 while (1) {
3265 spin_lock_irqsave(&queue_group->submit_lock[RAID_PATH], flags);
3266
3267 iq_pi = queue_group->iq_pi_copy[RAID_PATH];
dac12fbc 3268 iq_ci = readl(queue_group->iq_ci[RAID_PATH]);
6c223761
KB		 3269
3270 if (pqi_num_elements_free(iq_pi, iq_ci,
3271 ctrl_info->num_elements_per_iq))
3272 break;
3273
3274 spin_unlock_irqrestore(
3275 &queue_group->submit_lock[RAID_PATH], flags);
3276
98f87667 3277 if (pqi_ctrl_offline(ctrl_info))
6c223761 3278 return;
6c223761
KB		 3279 }
3280
3281 next_element = queue_group->iq_element_array[RAID_PATH] +
3282 (iq_pi * PQI_OPERATIONAL_IQ_ELEMENT_LENGTH);
3283
3284 memcpy(next_element, iu, iu_length);
3285
3286 iq_pi = (iq_pi + 1) % ctrl_info->num_elements_per_iq;
6c223761
KB		 3287 queue_group->iq_pi_copy[RAID_PATH] = iq_pi;
3288
3289 /*
3290 * This write notifies the controller that an IU is available to be
3291 * processed.
3292 */
3293 writel(iq_pi, queue_group->iq_pi[RAID_PATH]);
3294
3295 spin_unlock_irqrestore(&queue_group->submit_lock[RAID_PATH], flags);
6c223761
KB		 3296}
3297
3298static void pqi_acknowledge_event(struct pqi_ctrl_info *ctrl_info,
3299 struct pqi_event *event)
3300{
3301 struct pqi_event_acknowledge_request request;
3302
3303 memset(&request, 0, sizeof(request));
3304
3305 request.header.iu_type = PQI_REQUEST_IU_ACKNOWLEDGE_VENDOR_EVENT;
3306 put_unaligned_le16(sizeof(request) - PQI_REQUEST_HEADER_LENGTH,
3307 &request.header.iu_length);
3308 request.event_type = event->event_type;
06b41e0d
KB		 3309 put_unaligned_le16(event->event_id, &request.event_id);
3310 put_unaligned_le32(event->additional_event_id, &request.additional_event_id);
6c223761 3311
98f87667 3312 pqi_send_event_ack(ctrl_info, &request, sizeof(request));
6c223761
KB		 3313}
3314
4fd22c13
MR		 3315#define PQI_SOFT_RESET_STATUS_TIMEOUT_SECS 30
3316#define PQI_SOFT_RESET_STATUS_POLL_INTERVAL_SECS 1
3317
3318static enum pqi_soft_reset_status pqi_poll_for_soft_reset_status(
3319 struct pqi_ctrl_info *ctrl_info)
6c223761 3320{
4fd22c13 3321 u8 status;
583891c9 3322 unsigned long timeout;
6c223761 3323
4fd22c13 3324 timeout = (PQI_SOFT_RESET_STATUS_TIMEOUT_SECS * PQI_HZ) + jiffies;
6c223761 3325
4fd22c13
MR		 3326 while (1) {
3327 status = pqi_read_soft_reset_status(ctrl_info);
3328 if (status & PQI_SOFT_RESET_INITIATE)
3329 return RESET_INITIATE_DRIVER;
3330
3331 if (status & PQI_SOFT_RESET_ABORT)
3332 return RESET_ABORT;
3333
4ccc354b
KB		 3334 if (!sis_is_firmware_running(ctrl_info))
3335 return RESET_NORESPONSE;
3336
4fd22c13 3337 if (time_after(jiffies, timeout)) {
4ccc354b 3338 dev_warn(&ctrl_info->pci_dev->dev,
4fd22c13
MR		 3339 "timed out waiting for soft reset status\n");
3340 return RESET_TIMEDOUT;
3341 }
3342
4fd22c13
MR		 3343 ssleep(PQI_SOFT_RESET_STATUS_POLL_INTERVAL_SECS);
3344 }
3345}
3346
4ccc354b 3347static void pqi_process_soft_reset(struct pqi_ctrl_info *ctrl_info)
4fd22c13
MR		 3348{
3349 int rc;
2790cd4d 3350 unsigned int delay_secs;
4ccc354b
KB		 3351 enum pqi_soft_reset_status reset_status;
3352
3353 if (ctrl_info->soft_reset_handshake_supported)
3354 reset_status = pqi_poll_for_soft_reset_status(ctrl_info);
3355 else
3356 reset_status = RESET_INITIATE_FIRMWARE;
4fd22c13 3357
2790cd4d 3358 delay_secs = PQI_POST_RESET_DELAY_SECS;
4fd22c13
MR		 3359
3360 switch (reset_status) {
4fd22c13 3361 case RESET_TIMEDOUT:
2790cd4d 3362 delay_secs = PQI_POST_OFA_RESET_DELAY_UPON_TIMEOUT_SECS;
4ccc354b
KB		 3363 fallthrough;
3364 case RESET_INITIATE_DRIVER:
4fd22c13 3365 dev_info(&ctrl_info->pci_dev->dev,
4ccc354b 3366 "Online Firmware Activation: resetting controller\n");
4fd22c13 3367 sis_soft_reset(ctrl_info);
df561f66 3368 fallthrough;
4fd22c13 3369 case RESET_INITIATE_FIRMWARE:
4ccc354b
KB		 3370 ctrl_info->pqi_mode_enabled = false;
3371 pqi_save_ctrl_mode(ctrl_info, SIS_MODE);
2790cd4d 3372 rc = pqi_ofa_ctrl_restart(ctrl_info, delay_secs);
4fd22c13 3373 pqi_ofa_free_host_buffer(ctrl_info);
4ccc354b 3374 pqi_ctrl_ofa_done(ctrl_info);
4fd22c13 3375 dev_info(&ctrl_info->pci_dev->dev,
4ccc354b
KB		 3376 "Online Firmware Activation: %s\n",
3377 rc == 0 ? "SUCCESS" : "FAILED");
4fd22c13
MR		 3378 break;
3379 case RESET_ABORT:
4fd22c13 3380 dev_info(&ctrl_info->pci_dev->dev,
4ccc354b
KB		 3381 "Online Firmware Activation ABORTED\n");
3382 if (ctrl_info->soft_reset_handshake_supported)
3383 pqi_clear_soft_reset_status(ctrl_info);
3384 pqi_ofa_free_host_buffer(ctrl_info);
3385 pqi_ctrl_ofa_done(ctrl_info);
3386 pqi_ofa_ctrl_unquiesce(ctrl_info);
4fd22c13
MR		 3387 break;
3388 case RESET_NORESPONSE:
4ccc354b
KB		 3389 fallthrough;
3390 default:
3391 dev_err(&ctrl_info->pci_dev->dev,
3392 "unexpected Online Firmware Activation reset status: 0x%x\n",
3393 reset_status);
4fd22c13 3394 pqi_ofa_free_host_buffer(ctrl_info);
4ccc354b
KB		 3395 pqi_ctrl_ofa_done(ctrl_info);
3396 pqi_ofa_ctrl_unquiesce(ctrl_info);
4fd22c13
MR		 3397 pqi_take_ctrl_offline(ctrl_info);
3398 break;
3399 }
3400}
3401
2790cd4d 3402static void pqi_ofa_memory_alloc_worker(struct work_struct *work)
4fd22c13 3403{
2790cd4d 3404 struct pqi_ctrl_info *ctrl_info;
4fd22c13 3405
2790cd4d 3406 ctrl_info = container_of(work, struct pqi_ctrl_info, ofa_memory_alloc_work);
4fd22c13 3407
2790cd4d
KB		 3408 pqi_ctrl_ofa_start(ctrl_info);
3409 pqi_ofa_setup_host_buffer(ctrl_info);
3410 pqi_ofa_host_memory_update(ctrl_info);
3411}
4fd22c13 3412
2790cd4d
KB		 3413static void pqi_ofa_quiesce_worker(struct work_struct *work)
3414{
3415 struct pqi_ctrl_info *ctrl_info;
3416 struct pqi_event *event;
4fd22c13 3417
2790cd4d
KB		 3418 ctrl_info = container_of(work, struct pqi_ctrl_info, ofa_quiesce_work);
3419
3420 event = &ctrl_info->events[pqi_event_type_to_event_index(PQI_EVENT_TYPE_OFA)];
3421
3422 pqi_ofa_ctrl_quiesce(ctrl_info);
3423 pqi_acknowledge_event(ctrl_info, event);
3424 pqi_process_soft_reset(ctrl_info);
3425}
4fd22c13 3426
2790cd4d
KB		 3427static bool pqi_ofa_process_event(struct pqi_ctrl_info *ctrl_info,
3428 struct pqi_event *event)
3429{
3430 bool ack_event;
3431
3432 ack_event = true;
3433
3434 switch (event->event_id) {
3435 case PQI_EVENT_OFA_MEMORY_ALLOCATION:
4fd22c13 3436 dev_info(&ctrl_info->pci_dev->dev,
2790cd4d
KB		 3437 "received Online Firmware Activation memory allocation request\n");
3438 schedule_work(&ctrl_info->ofa_memory_alloc_work);
3439 break;
3440 case PQI_EVENT_OFA_QUIESCE:
4fd22c13 3441 dev_info(&ctrl_info->pci_dev->dev,
2790cd4d
KB		 3442 "received Online Firmware Activation quiesce request\n");
3443 schedule_work(&ctrl_info->ofa_quiesce_work);
3444 ack_event = false;
3445 break;
3446 case PQI_EVENT_OFA_CANCELED:
4fd22c13 3447 dev_info(&ctrl_info->pci_dev->dev,
2790cd4d
KB		 3448 "received Online Firmware Activation cancel request: reason: %u\n",
3449 ctrl_info->ofa_cancel_reason);
3450 pqi_ofa_free_host_buffer(ctrl_info);
3451 pqi_ctrl_ofa_done(ctrl_info);
3452 break;
3453 default:
3454 dev_err(&ctrl_info->pci_dev->dev,
3455 "received unknown Online Firmware Activation request: event ID: %u\n",
3456 event->event_id);
3457 break;
4fd22c13
MR		 3458 }
3459
2790cd4d 3460 return ack_event;
4fd22c13
MR		 3461}
3462
6c223761
KB		 3463static void pqi_event_worker(struct work_struct *work)
3464{
3465 unsigned int i;
2790cd4d 3466 bool rescan_needed;
6c223761 3467 struct pqi_ctrl_info *ctrl_info;
6a50d6ad 3468 struct pqi_event *event;
2790cd4d 3469 bool ack_event;
6c223761
KB		 3470
3471 ctrl_info = container_of(work, struct pqi_ctrl_info, event_work);
3472
7561a7e4 3473 pqi_ctrl_busy(ctrl_info);
ae0c189d 3474 pqi_wait_if_ctrl_blocked(ctrl_info);
5f310425
KB		 3475 if (pqi_ctrl_offline(ctrl_info))
3476 goto out;
3477
2790cd4d 3478 rescan_needed = false;
6a50d6ad 3479 event = ctrl_info->events;
6c223761 3480 for (i = 0; i < PQI_NUM_SUPPORTED_EVENTS; i++) {
6a50d6ad
KB		 3481 if (event->pending) {
3482 event->pending = false;
4fd22c13 3483 if (event->event_type == PQI_EVENT_TYPE_OFA) {
2790cd4d
KB		 3484 ack_event = pqi_ofa_process_event(ctrl_info, event);
3485 } else {
3486 ack_event = true;
3487 rescan_needed = true;
4fd22c13 3488 }
2790cd4d
KB		 3489 if (ack_event)
3490 pqi_acknowledge_event(ctrl_info, event);
6c223761 3491 }
6a50d6ad 3492 event++;
6c223761
KB		 3493 }
3494
2790cd4d
KB		 3495 if (rescan_needed)
3496 pqi_schedule_rescan_worker_delayed(ctrl_info);
3497
5f310425 3498out:
7561a7e4 3499 pqi_ctrl_unbusy(ctrl_info);
6c223761
KB		 3500}
3501
4fd22c13 3502#define PQI_HEARTBEAT_TIMER_INTERVAL (10 * PQI_HZ)
6c223761 3503
74a0f573 3504static void pqi_heartbeat_timer_handler(struct timer_list *t)
6c223761
KB		 3505{
3506 int num_interrupts;
98f87667 3507 u32 heartbeat_count;
583891c9 3508 struct pqi_ctrl_info *ctrl_info = from_timer(ctrl_info, t, heartbeat_timer);
6c223761 3509
98f87667
KB		 3510 pqi_check_ctrl_health(ctrl_info);
3511 if (pqi_ctrl_offline(ctrl_info))
061ef06a
KB		 3512 return;
3513
6c223761 3514 num_interrupts = atomic_read(&ctrl_info->num_interrupts);
98f87667 3515 heartbeat_count = pqi_read_heartbeat_counter(ctrl_info);
6c223761
KB		 3516
3517 if (num_interrupts == ctrl_info->previous_num_interrupts) {
98f87667
KB		 3518 if (heartbeat_count == ctrl_info->previous_heartbeat_count) {
3519 dev_err(&ctrl_info->pci_dev->dev,
3520 "no heartbeat detected - last heartbeat count: %u\n",
3521 heartbeat_count);
6c223761
KB		 3522 pqi_take_ctrl_offline(ctrl_info);
3523 return;
3524 }
6c223761 3525 } else {
98f87667 3526 ctrl_info->previous_num_interrupts = num_interrupts;
6c223761
KB		 3527 }
3528
98f87667 3529 ctrl_info->previous_heartbeat_count = heartbeat_count;
6c223761
KB		 3530 mod_timer(&ctrl_info->heartbeat_timer,
3531 jiffies + PQI_HEARTBEAT_TIMER_INTERVAL);
3532}
3533
3534static void pqi_start_heartbeat_timer(struct pqi_ctrl_info *ctrl_info)
3535{
98f87667
KB		 3536 if (!ctrl_info->heartbeat_counter)
3537 return;
3538
6c223761
KB		 3539 ctrl_info->previous_num_interrupts =
3540 atomic_read(&ctrl_info->num_interrupts);
98f87667
KB		 3541 ctrl_info->previous_heartbeat_count =
3542 pqi_read_heartbeat_counter(ctrl_info);
6c223761 3543
6c223761
KB		 3544 ctrl_info->heartbeat_timer.expires =
3545 jiffies + PQI_HEARTBEAT_TIMER_INTERVAL;
061ef06a 3546 add_timer(&ctrl_info->heartbeat_timer);
6c223761
KB		 3547}
3548
3549static inline void pqi_stop_heartbeat_timer(struct pqi_ctrl_info *ctrl_info)
3550{
98f87667 3551 del_timer_sync(&ctrl_info->heartbeat_timer);
6c223761
KB		 3552}
3553
2790cd4d
KB		 3554static void pqi_ofa_capture_event_payload(struct pqi_ctrl_info *ctrl_info,
3555 struct pqi_event *event, struct pqi_event_response *response)
4fd22c13 3556{
2790cd4d
KB		 3557 switch (event->event_id) {
3558 case PQI_EVENT_OFA_MEMORY_ALLOCATION:
3559 ctrl_info->ofa_bytes_requested =
3560 get_unaligned_le32(&response->data.ofa_memory_allocation.bytes_requested);
3561 break;
3562 case PQI_EVENT_OFA_CANCELED:
3563 ctrl_info->ofa_cancel_reason =
3564 get_unaligned_le16(&response->data.ofa_cancelled.reason);
3565 break;
4fd22c13
MR		 3566 }
3567}
3568
9e68cccc 3569static int pqi_process_event_intr(struct pqi_ctrl_info *ctrl_info)
6c223761 3570{
9e68cccc 3571 int num_events;
6c223761
KB		 3572 pqi_index_t oq_pi;
3573 pqi_index_t oq_ci;
3574 struct pqi_event_queue *event_queue;
3575 struct pqi_event_response *response;
6a50d6ad 3576 struct pqi_event *event;
6c223761
KB		 3577 int event_index;
3578
3579 event_queue = &ctrl_info->event_queue;
3580 num_events = 0;
6c223761
KB		 3581 oq_ci = event_queue->oq_ci_copy;
3582
3583 while (1) {
dac12fbc 3584 oq_pi = readl(event_queue->oq_pi);
9e68cccc
KB		 3585 if (oq_pi >= PQI_NUM_EVENT_QUEUE_ELEMENTS) {
3586 pqi_invalid_response(ctrl_info);
3587 dev_err(&ctrl_info->pci_dev->dev,
3588 "event interrupt: producer index (%u) out of range (0-%u): consumer index: %u\n",
3589 oq_pi, PQI_NUM_EVENT_QUEUE_ELEMENTS - 1, oq_ci);
3590 return -1;
3591 }
3592
6c223761
KB		 3593 if (oq_pi == oq_ci)
3594 break;
3595
3596 num_events++;
9e68cccc 3597 response = event_queue->oq_element_array + (oq_ci * PQI_EVENT_OQ_ELEMENT_LENGTH);
6c223761 3598
583891c9 3599 event_index = pqi_event_type_to_event_index(response->event_type);
6c223761 3600
9e68cccc
KB		 3601 if (event_index >= 0 && response->request_acknowledge) {
3602 event = &ctrl_info->events[event_index];
3603 event->pending = true;
3604 event->event_type = response->event_type;
06b41e0d
KB		 3605 event->event_id = get_unaligned_le16(&response->event_id);
3606 event->additional_event_id =
3607 get_unaligned_le32(&response->additional_event_id);
9e68cccc 3608 if (event->event_type == PQI_EVENT_TYPE_OFA)
2790cd4d 3609 pqi_ofa_capture_event_payload(ctrl_info, event, response);
6c223761
KB		 3610 }
3611
3612 oq_ci = (oq_ci + 1) % PQI_NUM_EVENT_QUEUE_ELEMENTS;
3613 }
3614
3615 if (num_events) {
3616 event_queue->oq_ci_copy = oq_ci;
3617 writel(oq_ci, event_queue->oq_ci);
98f87667 3618 schedule_work(&ctrl_info->event_work);
6c223761
KB		 3619 }
3620
3621 return num_events;
3622}
3623
061ef06a
KB		 3624#define PQI_LEGACY_INTX_MASK 0x1
3625
583891c9 3626static inline void pqi_configure_legacy_intx(struct pqi_ctrl_info *ctrl_info, bool enable_intx)
061ef06a
KB		 3627{
3628 u32 intx_mask;
3629 struct pqi_device_registers __iomem *pqi_registers;
3630 volatile void __iomem *register_addr;
3631
3632 pqi_registers = ctrl_info->pqi_registers;
3633
3634 if (enable_intx)
3635 register_addr = &pqi_registers->legacy_intx_mask_clear;
3636 else
3637 register_addr = &pqi_registers->legacy_intx_mask_set;
3638
3639 intx_mask = readl(register_addr);
3640 intx_mask |= PQI_LEGACY_INTX_MASK;
3641 writel(intx_mask, register_addr);
3642}
3643
3644static void pqi_change_irq_mode(struct pqi_ctrl_info *ctrl_info,
3645 enum pqi_irq_mode new_mode)
3646{
3647 switch (ctrl_info->irq_mode) {
3648 case IRQ_MODE_MSIX:
3649 switch (new_mode) {
3650 case IRQ_MODE_MSIX:
3651 break;
3652 case IRQ_MODE_INTX:
3653 pqi_configure_legacy_intx(ctrl_info, true);
061ef06a
KB		 3654 sis_enable_intx(ctrl_info);
3655 break;
3656 case IRQ_MODE_NONE:
061ef06a
KB		 3657 break;
3658 }
3659 break;
3660 case IRQ_MODE_INTX:
3661 switch (new_mode) {
3662 case IRQ_MODE_MSIX:
3663 pqi_configure_legacy_intx(ctrl_info, false);
061ef06a
KB		 3664 sis_enable_msix(ctrl_info);
3665 break;
3666 case IRQ_MODE_INTX:
3667 break;
3668 case IRQ_MODE_NONE:
3669 pqi_configure_legacy_intx(ctrl_info, false);
061ef06a
KB		 3670 break;
3671 }
3672 break;
3673 case IRQ_MODE_NONE:
3674 switch (new_mode) {
3675 case IRQ_MODE_MSIX:
3676 sis_enable_msix(ctrl_info);
3677 break;
3678 case IRQ_MODE_INTX:
3679 pqi_configure_legacy_intx(ctrl_info, true);
3680 sis_enable_intx(ctrl_info);
3681 break;
3682 case IRQ_MODE_NONE:
3683 break;
3684 }
3685 break;
3686 }
3687
3688 ctrl_info->irq_mode = new_mode;
3689}
3690
3691#define PQI_LEGACY_INTX_PENDING 0x1
3692
3693static inline bool pqi_is_valid_irq(struct pqi_ctrl_info *ctrl_info)
3694{
3695 bool valid_irq;
3696 u32 intx_status;
3697
3698 switch (ctrl_info->irq_mode) {
3699 case IRQ_MODE_MSIX:
3700 valid_irq = true;
3701 break;
3702 case IRQ_MODE_INTX:
583891c9 3703 intx_status = readl(&ctrl_info->pqi_registers->legacy_intx_status);
061ef06a
KB		 3704 if (intx_status & PQI_LEGACY_INTX_PENDING)
3705 valid_irq = true;
3706 else
3707 valid_irq = false;
3708 break;
3709 case IRQ_MODE_NONE:
3710 default:
3711 valid_irq = false;
3712 break;
3713 }
3714
3715 return valid_irq;
3716}
3717
6c223761
KB		 3718static irqreturn_t pqi_irq_handler(int irq, void *data)
3719{
3720 struct pqi_ctrl_info *ctrl_info;
3721 struct pqi_queue_group *queue_group;
9e68cccc
KB		 3722 int num_io_responses_handled;
3723 int num_events_handled;
6c223761
KB		 3724
3725 queue_group = data;
3726 ctrl_info = queue_group->ctrl_info;
3727
061ef06a 3728 if (!pqi_is_valid_irq(ctrl_info))
6c223761
KB		 3729 return IRQ_NONE;
3730
9e68cccc
KB		 3731 num_io_responses_handled = pqi_process_io_intr(ctrl_info, queue_group);
3732 if (num_io_responses_handled < 0)
3733 goto out;
6c223761 3734
9e68cccc
KB		 3735 if (irq == ctrl_info->event_irq) {
3736 num_events_handled = pqi_process_event_intr(ctrl_info);
3737 if (num_events_handled < 0)
3738 goto out;
3739 } else {
3740 num_events_handled = 0;
3741 }
6c223761 3742
9e68cccc 3743 if (num_io_responses_handled + num_events_handled > 0)
6c223761
KB		 3744 atomic_inc(&ctrl_info->num_interrupts);
3745
3746 pqi_start_io(ctrl_info, queue_group, RAID_PATH, NULL);
3747 pqi_start_io(ctrl_info, queue_group, AIO_PATH, NULL);
3748
9e68cccc 3749out:
6c223761
KB		 3750 return IRQ_HANDLED;
3751}
3752
3753static int pqi_request_irqs(struct pqi_ctrl_info *ctrl_info)
3754{
d91d7820 3755 struct pci_dev *pci_dev = ctrl_info->pci_dev;
6c223761
KB		 3756 int i;
3757 int rc;
3758
d91d7820 3759 ctrl_info->event_irq = pci_irq_vector(pci_dev, 0);
6c223761
KB		 3760
3761 for (i = 0; i < ctrl_info->num_msix_vectors_enabled; i++) {
d91d7820 3762 rc = request_irq(pci_irq_vector(pci_dev, i), pqi_irq_handler, 0,
52198226 3763 DRIVER_NAME_SHORT, &ctrl_info->queue_groups[i]);
6c223761 3764 if (rc) {
d91d7820 3765 dev_err(&pci_dev->dev,
6c223761 3766 "irq %u init failed with error %d\n",
d91d7820 3767 pci_irq_vector(pci_dev, i), rc);
6c223761
KB		 3768 return rc;
3769 }
3770 ctrl_info->num_msix_vectors_initialized++;
3771 }
3772
3773 return 0;
3774}
3775
98bf061b
KB		 3776static void pqi_free_irqs(struct pqi_ctrl_info *ctrl_info)
3777{
3778 int i;
3779
3780 for (i = 0; i < ctrl_info->num_msix_vectors_initialized; i++)
3781 free_irq(pci_irq_vector(ctrl_info->pci_dev, i),
3782 &ctrl_info->queue_groups[i]);
3783
3784 ctrl_info->num_msix_vectors_initialized = 0;
3785}
3786
6c223761
KB		 3787static int pqi_enable_msix_interrupts(struct pqi_ctrl_info *ctrl_info)
3788{
98bf061b 3789 int num_vectors_enabled;
6c223761 3790
98bf061b 3791 num_vectors_enabled = pci_alloc_irq_vectors(ctrl_info->pci_dev,
52198226
CH		 3792 PQI_MIN_MSIX_VECTORS, ctrl_info->num_queue_groups,
3793 PCI_IRQ_MSIX | PCI_IRQ_AFFINITY);
98bf061b 3794 if (num_vectors_enabled < 0) {
6c223761 3795 dev_err(&ctrl_info->pci_dev->dev,
98bf061b
KB		 3796 "MSI-X init failed with error %d\n",
3797 num_vectors_enabled);
3798 return num_vectors_enabled;
6c223761
KB		 3799 }
3800
98bf061b 3801 ctrl_info->num_msix_vectors_enabled = num_vectors_enabled;
061ef06a 3802 ctrl_info->irq_mode = IRQ_MODE_MSIX;
6c223761
KB		 3803 return 0;
3804}
3805
98bf061b
KB		 3806static void pqi_disable_msix_interrupts(struct pqi_ctrl_info *ctrl_info)
3807{
3808 if (ctrl_info->num_msix_vectors_enabled) {
3809 pci_free_irq_vectors(ctrl_info->pci_dev);
3810 ctrl_info->num_msix_vectors_enabled = 0;
3811 }
3812}
3813
6c223761
KB		 3814static int pqi_alloc_operational_queues(struct pqi_ctrl_info *ctrl_info)
3815{
3816 unsigned int i;
3817 size_t alloc_length;
3818 size_t element_array_length_per_iq;
3819 size_t element_array_length_per_oq;
3820 void *element_array;
dac12fbc 3821 void __iomem *next_queue_index;
6c223761
KB		 3822 void *aligned_pointer;
3823 unsigned int num_inbound_queues;
3824 unsigned int num_outbound_queues;
3825 unsigned int num_queue_indexes;
3826 struct pqi_queue_group *queue_group;
3827
3828 element_array_length_per_iq =
3829 PQI_OPERATIONAL_IQ_ELEMENT_LENGTH *
3830 ctrl_info->num_elements_per_iq;
3831 element_array_length_per_oq =
3832 PQI_OPERATIONAL_OQ_ELEMENT_LENGTH *
3833 ctrl_info->num_elements_per_oq;
3834 num_inbound_queues = ctrl_info->num_queue_groups * 2;
3835 num_outbound_queues = ctrl_info->num_queue_groups;
3836 num_queue_indexes = (ctrl_info->num_queue_groups * 3) + 1;
3837
3838 aligned_pointer = NULL;
3839
3840 for (i = 0; i < num_inbound_queues; i++) {
3841 aligned_pointer = PTR_ALIGN(aligned_pointer,
3842 PQI_QUEUE_ELEMENT_ARRAY_ALIGNMENT);
3843 aligned_pointer += element_array_length_per_iq;
3844 }
3845
3846 for (i = 0; i < num_outbound_queues; i++) {
3847 aligned_pointer = PTR_ALIGN(aligned_pointer,
3848 PQI_QUEUE_ELEMENT_ARRAY_ALIGNMENT);
3849 aligned_pointer += element_array_length_per_oq;
3850 }
3851
3852 aligned_pointer = PTR_ALIGN(aligned_pointer,
3853 PQI_QUEUE_ELEMENT_ARRAY_ALIGNMENT);
3854 aligned_pointer += PQI_NUM_EVENT_QUEUE_ELEMENTS *
3855 PQI_EVENT_OQ_ELEMENT_LENGTH;
3856
3857 for (i = 0; i < num_queue_indexes; i++) {
3858 aligned_pointer = PTR_ALIGN(aligned_pointer,
3859 PQI_OPERATIONAL_INDEX_ALIGNMENT);
3860 aligned_pointer += sizeof(pqi_index_t);
3861 }
3862
3863 alloc_length = (size_t)aligned_pointer +
3864 PQI_QUEUE_ELEMENT_ARRAY_ALIGNMENT;
3865
e1d213bd
KB		 3866 alloc_length += PQI_EXTRA_SGL_MEMORY;
3867
6c223761 3868 ctrl_info->queue_memory_base =
750afb08
LC		 3869 dma_alloc_coherent(&ctrl_info->pci_dev->dev, alloc_length,
3870 &ctrl_info->queue_memory_base_dma_handle,
3871 GFP_KERNEL);
6c223761 3872
d87d5474 3873 if (!ctrl_info->queue_memory_base)
6c223761 3874 return -ENOMEM;
6c223761
KB		 3875
3876 ctrl_info->queue_memory_length = alloc_length;
3877
3878 element_array = PTR_ALIGN(ctrl_info->queue_memory_base,
3879 PQI_QUEUE_ELEMENT_ARRAY_ALIGNMENT);
3880
3881 for (i = 0; i < ctrl_info->num_queue_groups; i++) {
3882 queue_group = &ctrl_info->queue_groups[i];
3883 queue_group->iq_element_array[RAID_PATH] = element_array;
3884 queue_group->iq_element_array_bus_addr[RAID_PATH] =
3885 ctrl_info->queue_memory_base_dma_handle +
3886 (element_array - ctrl_info->queue_memory_base);
3887 element_array += element_array_length_per_iq;
3888 element_array = PTR_ALIGN(element_array,
3889 PQI_QUEUE_ELEMENT_ARRAY_ALIGNMENT);
3890 queue_group->iq_element_array[AIO_PATH] = element_array;
3891 queue_group->iq_element_array_bus_addr[AIO_PATH] =
3892 ctrl_info->queue_memory_base_dma_handle +
3893 (element_array - ctrl_info->queue_memory_base);
3894 element_array += element_array_length_per_iq;
3895 element_array = PTR_ALIGN(element_array,
3896 PQI_QUEUE_ELEMENT_ARRAY_ALIGNMENT);
3897 }
3898
3899 for (i = 0; i < ctrl_info->num_queue_groups; i++) {
3900 queue_group = &ctrl_info->queue_groups[i];
3901 queue_group->oq_element_array = element_array;
3902 queue_group->oq_element_array_bus_addr =
3903 ctrl_info->queue_memory_base_dma_handle +
3904 (element_array - ctrl_info->queue_memory_base);
3905 element_array += element_array_length_per_oq;
3906 element_array = PTR_ALIGN(element_array,
3907 PQI_QUEUE_ELEMENT_ARRAY_ALIGNMENT);
3908 }
3909
3910 ctrl_info->event_queue.oq_element_array = element_array;
3911 ctrl_info->event_queue.oq_element_array_bus_addr =
3912 ctrl_info->queue_memory_base_dma_handle +
3913 (element_array - ctrl_info->queue_memory_base);
3914 element_array += PQI_NUM_EVENT_QUEUE_ELEMENTS *
3915 PQI_EVENT_OQ_ELEMENT_LENGTH;
3916
dac12fbc 3917 next_queue_index = (void __iomem *)PTR_ALIGN(element_array,
6c223761
KB		 3918 PQI_OPERATIONAL_INDEX_ALIGNMENT);
3919
3920 for (i = 0; i < ctrl_info->num_queue_groups; i++) {
3921 queue_group = &ctrl_info->queue_groups[i];
3922 queue_group->iq_ci[RAID_PATH] = next_queue_index;
3923 queue_group->iq_ci_bus_addr[RAID_PATH] =
3924 ctrl_info->queue_memory_base_dma_handle +
dac12fbc
KB		 3925 (next_queue_index -
3926 (void __iomem *)ctrl_info->queue_memory_base);
6c223761
KB		 3927 next_queue_index += sizeof(pqi_index_t);
3928 next_queue_index = PTR_ALIGN(next_queue_index,
3929 PQI_OPERATIONAL_INDEX_ALIGNMENT);
3930 queue_group->iq_ci[AIO_PATH] = next_queue_index;
3931 queue_group->iq_ci_bus_addr[AIO_PATH] =
3932 ctrl_info->queue_memory_base_dma_handle +
dac12fbc
KB		 3933 (next_queue_index -
3934 (void __iomem *)ctrl_info->queue_memory_base);
6c223761
KB		 3935 next_queue_index += sizeof(pqi_index_t);
3936 next_queue_index = PTR_ALIGN(next_queue_index,
3937 PQI_OPERATIONAL_INDEX_ALIGNMENT);
3938 queue_group->oq_pi = next_queue_index;
3939 queue_group->oq_pi_bus_addr =
3940 ctrl_info->queue_memory_base_dma_handle +
dac12fbc
KB		 3941 (next_queue_index -
3942 (void __iomem *)ctrl_info->queue_memory_base);
6c223761
KB		 3943 next_queue_index += sizeof(pqi_index_t);
3944 next_queue_index = PTR_ALIGN(next_queue_index,
3945 PQI_OPERATIONAL_INDEX_ALIGNMENT);
3946 }
3947
3948 ctrl_info->event_queue.oq_pi = next_queue_index;
3949 ctrl_info->event_queue.oq_pi_bus_addr =
3950 ctrl_info->queue_memory_base_dma_handle +
dac12fbc
KB		 3951 (next_queue_index -
3952 (void __iomem *)ctrl_info->queue_memory_base);
6c223761
KB		 3953
3954 return 0;
3955}
3956
3957static void pqi_init_operational_queues(struct pqi_ctrl_info *ctrl_info)
3958{
3959 unsigned int i;
3960 u16 next_iq_id = PQI_MIN_OPERATIONAL_QUEUE_ID;
3961 u16 next_oq_id = PQI_MIN_OPERATIONAL_QUEUE_ID;
3962
3963 /*
3964 * Initialize the backpointers to the controller structure in
3965 * each operational queue group structure.
3966 */
3967 for (i = 0; i < ctrl_info->num_queue_groups; i++)
3968 ctrl_info->queue_groups[i].ctrl_info = ctrl_info;
3969
3970 /*
3971 * Assign IDs to all operational queues. Note that the IDs
3972 * assigned to operational IQs are independent of the IDs
3973 * assigned to operational OQs.
3974 */
3975 ctrl_info->event_queue.oq_id = next_oq_id++;
3976 for (i = 0; i < ctrl_info->num_queue_groups; i++) {
3977 ctrl_info->queue_groups[i].iq_id[RAID_PATH] = next_iq_id++;
3978 ctrl_info->queue_groups[i].iq_id[AIO_PATH] = next_iq_id++;
3979 ctrl_info->queue_groups[i].oq_id = next_oq_id++;
3980 }
3981
3982 /*
3983 * Assign MSI-X table entry indexes to all queues. Note that the
3984 * interrupt for the event queue is shared with the first queue group.
3985 */
3986 ctrl_info->event_queue.int_msg_num = 0;
3987 for (i = 0; i < ctrl_info->num_queue_groups; i++)
3988 ctrl_info->queue_groups[i].int_msg_num = i;
3989
3990 for (i = 0; i < ctrl_info->num_queue_groups; i++) {
3991 spin_lock_init(&ctrl_info->queue_groups[i].submit_lock[0]);
3992 spin_lock_init(&ctrl_info->queue_groups[i].submit_lock[1]);
3993 INIT_LIST_HEAD(&ctrl_info->queue_groups[i].request_list[0]);
3994 INIT_LIST_HEAD(&ctrl_info->queue_groups[i].request_list[1]);
3995 }
3996}
3997
3998static int pqi_alloc_admin_queues(struct pqi_ctrl_info *ctrl_info)
3999{
4000 size_t alloc_length;
4001 struct pqi_admin_queues_aligned *admin_queues_aligned;
4002 struct pqi_admin_queues *admin_queues;
4003
4004 alloc_length = sizeof(struct pqi_admin_queues_aligned) +
4005 PQI_QUEUE_ELEMENT_ARRAY_ALIGNMENT;
4006
4007 ctrl_info->admin_queue_memory_base =
750afb08
LC		 4008 dma_alloc_coherent(&ctrl_info->pci_dev->dev, alloc_length,
4009 &ctrl_info->admin_queue_memory_base_dma_handle,
4010 GFP_KERNEL);
6c223761
KB		 4011
4012 if (!ctrl_info->admin_queue_memory_base)
4013 return -ENOMEM;
4014
4015 ctrl_info->admin_queue_memory_length = alloc_length;
4016
4017 admin_queues = &ctrl_info->admin_queues;
4018 admin_queues_aligned = PTR_ALIGN(ctrl_info->admin_queue_memory_base,
4019 PQI_QUEUE_ELEMENT_ARRAY_ALIGNMENT);
4020 admin_queues->iq_element_array =
4021 &admin_queues_aligned->iq_element_array;
4022 admin_queues->oq_element_array =
4023 &admin_queues_aligned->oq_element_array;
583891c9
KB		 4024 admin_queues->iq_ci =
4025 (pqi_index_t __iomem *)&admin_queues_aligned->iq_ci;
dac12fbc
KB		 4026 admin_queues->oq_pi =
4027 (pqi_index_t __iomem *)&admin_queues_aligned->oq_pi;
6c223761
KB		 4028
4029 admin_queues->iq_element_array_bus_addr =
4030 ctrl_info->admin_queue_memory_base_dma_handle +
4031 (admin_queues->iq_element_array -
4032 ctrl_info->admin_queue_memory_base);
4033 admin_queues->oq_element_array_bus_addr =
4034 ctrl_info->admin_queue_memory_base_dma_handle +
4035 (admin_queues->oq_element_array -
4036 ctrl_info->admin_queue_memory_base);
4037 admin_queues->iq_ci_bus_addr =
4038 ctrl_info->admin_queue_memory_base_dma_handle +
583891c9
KB		 4039 ((void __iomem *)admin_queues->iq_ci -
4040 (void __iomem *)ctrl_info->admin_queue_memory_base);
6c223761
KB		 4041 admin_queues->oq_pi_bus_addr =
4042 ctrl_info->admin_queue_memory_base_dma_handle +
dac12fbc
KB		 4043 ((void __iomem *)admin_queues->oq_pi -
4044 (void __iomem *)ctrl_info->admin_queue_memory_base);
6c223761
KB		 4045
4046 return 0;
4047}
4048
4fd22c13 4049#define PQI_ADMIN_QUEUE_CREATE_TIMEOUT_JIFFIES PQI_HZ
6c223761
KB		 4050#define PQI_ADMIN_QUEUE_CREATE_POLL_INTERVAL_MSECS 1
4051
4052static int pqi_create_admin_queues(struct pqi_ctrl_info *ctrl_info)
4053{
4054 struct pqi_device_registers __iomem *pqi_registers;
4055 struct pqi_admin_queues *admin_queues;
4056 unsigned long timeout;
4057 u8 status;
4058 u32 reg;
4059
4060 pqi_registers = ctrl_info->pqi_registers;
4061 admin_queues = &ctrl_info->admin_queues;
4062
4063 writeq((u64)admin_queues->iq_element_array_bus_addr,
4064 &pqi_registers->admin_iq_element_array_addr);
4065 writeq((u64)admin_queues->oq_element_array_bus_addr,
4066 &pqi_registers->admin_oq_element_array_addr);
4067 writeq((u64)admin_queues->iq_ci_bus_addr,
4068 &pqi_registers->admin_iq_ci_addr);
4069 writeq((u64)admin_queues->oq_pi_bus_addr,
4070 &pqi_registers->admin_oq_pi_addr);
4071
4072 reg = PQI_ADMIN_IQ_NUM_ELEMENTS |
e655d469 4073 (PQI_ADMIN_OQ_NUM_ELEMENTS << 8) |
6c223761
KB		 4074 (admin_queues->int_msg_num << 16);
4075 writel(reg, &pqi_registers->admin_iq_num_elements);
583891c9 4076
6c223761
KB		 4077 writel(PQI_CREATE_ADMIN_QUEUE_PAIR,
4078 &pqi_registers->function_and_status_code);
4079
4080 timeout = PQI_ADMIN_QUEUE_CREATE_TIMEOUT_JIFFIES + jiffies;
4081 while (1) {
4082 status = readb(&pqi_registers->function_and_status_code);
4083 if (status == PQI_STATUS_IDLE)
4084 break;
4085 if (time_after(jiffies, timeout))
4086 return -ETIMEDOUT;
4087 msleep(PQI_ADMIN_QUEUE_CREATE_POLL_INTERVAL_MSECS);
4088 }
4089
4090 /*
4091 * The offset registers are not initialized to the correct
4092 * offsets until *after* the create admin queue pair command
4093 * completes successfully.
4094 */
4095 admin_queues->iq_pi = ctrl_info->iomem_base +
4096 PQI_DEVICE_REGISTERS_OFFSET +
4097 readq(&pqi_registers->admin_iq_pi_offset);
4098 admin_queues->oq_ci = ctrl_info->iomem_base +
4099 PQI_DEVICE_REGISTERS_OFFSET +
4100 readq(&pqi_registers->admin_oq_ci_offset);
4101
4102 return 0;
4103}
4104
4105static void pqi_submit_admin_request(struct pqi_ctrl_info *ctrl_info,
4106 struct pqi_general_admin_request *request)
4107{
4108 struct pqi_admin_queues *admin_queues;
4109 void *next_element;
4110 pqi_index_t iq_pi;
4111
4112 admin_queues = &ctrl_info->admin_queues;
4113 iq_pi = admin_queues->iq_pi_copy;
4114
4115 next_element = admin_queues->iq_element_array +
4116 (iq_pi * PQI_ADMIN_IQ_ELEMENT_LENGTH);
4117
4118 memcpy(next_element, request, sizeof(*request));
4119
4120 iq_pi = (iq_pi + 1) % PQI_ADMIN_IQ_NUM_ELEMENTS;
4121 admin_queues->iq_pi_copy = iq_pi;
4122
4123 /*
4124 * This write notifies the controller that an IU is available to be
4125 * processed.
4126 */
4127 writel(iq_pi, admin_queues->iq_pi);
4128}
4129
13bede67
KB		 4130#define PQI_ADMIN_REQUEST_TIMEOUT_SECS 60
4131
6c223761
KB		 4132static int pqi_poll_for_admin_response(struct pqi_ctrl_info *ctrl_info,
4133 struct pqi_general_admin_response *response)
4134{
4135 struct pqi_admin_queues *admin_queues;
4136 pqi_index_t oq_pi;
4137 pqi_index_t oq_ci;
4138 unsigned long timeout;
4139
4140 admin_queues = &ctrl_info->admin_queues;
4141 oq_ci = admin_queues->oq_ci_copy;
4142
4fd22c13 4143 timeout = (PQI_ADMIN_REQUEST_TIMEOUT_SECS * PQI_HZ) + jiffies;
6c223761
KB		 4144
4145 while (1) {
dac12fbc 4146 oq_pi = readl(admin_queues->oq_pi);
6c223761
KB		 4147 if (oq_pi != oq_ci)
4148 break;
4149 if (time_after(jiffies, timeout)) {
4150 dev_err(&ctrl_info->pci_dev->dev,
4151 "timed out waiting for admin response\n");
4152 return -ETIMEDOUT;
4153 }
13bede67
KB		 4154 if (!sis_is_firmware_running(ctrl_info))
4155 return -ENXIO;
6c223761
KB		 4156 usleep_range(1000, 2000);
4157 }
4158
4159 memcpy(response, admin_queues->oq_element_array +
4160 (oq_ci * PQI_ADMIN_OQ_ELEMENT_LENGTH), sizeof(*response));
4161
4162 oq_ci = (oq_ci + 1) % PQI_ADMIN_OQ_NUM_ELEMENTS;
4163 admin_queues->oq_ci_copy = oq_ci;
4164 writel(oq_ci, admin_queues->oq_ci);
4165
4166 return 0;
4167}
4168
4169static void pqi_start_io(struct pqi_ctrl_info *ctrl_info,
4170 struct pqi_queue_group *queue_group, enum pqi_io_path path,
4171 struct pqi_io_request *io_request)
4172{
4173 struct pqi_io_request *next;
4174 void *next_element;
4175 pqi_index_t iq_pi;
4176 pqi_index_t iq_ci;
4177 size_t iu_length;
4178 unsigned long flags;
4179 unsigned int num_elements_needed;
4180 unsigned int num_elements_to_end_of_queue;
4181 size_t copy_count;
4182 struct pqi_iu_header *request;
4183
4184 spin_lock_irqsave(&queue_group->submit_lock[path], flags);
4185
376fb880
KB		 4186 if (io_request) {
4187 io_request->queue_group = queue_group;
6c223761
KB		 4188 list_add_tail(&io_request->request_list_entry,
4189 &queue_group->request_list[path]);
376fb880 4190 }
6c223761
KB		 4191
4192 iq_pi = queue_group->iq_pi_copy[path];
4193
4194 list_for_each_entry_safe(io_request, next,
4195 &queue_group->request_list[path], request_list_entry) {
4196
4197 request = io_request->iu;
4198
4199 iu_length = get_unaligned_le16(&request->iu_length) +
4200 PQI_REQUEST_HEADER_LENGTH;
4201 num_elements_needed =
4202 DIV_ROUND_UP(iu_length,
4203 PQI_OPERATIONAL_IQ_ELEMENT_LENGTH);
4204
dac12fbc 4205 iq_ci = readl(queue_group->iq_ci[path]);
6c223761
KB		 4206
4207 if (num_elements_needed > pqi_num_elements_free(iq_pi, iq_ci,
4208 ctrl_info->num_elements_per_iq))
4209 break;
4210
4211 put_unaligned_le16(queue_group->oq_id,
4212 &request->response_queue_id);
4213
4214 next_element = queue_group->iq_element_array[path] +
4215 (iq_pi * PQI_OPERATIONAL_IQ_ELEMENT_LENGTH);
4216
4217 num_elements_to_end_of_queue =
4218 ctrl_info->num_elements_per_iq - iq_pi;
4219
4220 if (num_elements_needed <= num_elements_to_end_of_queue) {
4221 memcpy(next_element, request, iu_length);
4222 } else {
4223 copy_count = num_elements_to_end_of_queue *
4224 PQI_OPERATIONAL_IQ_ELEMENT_LENGTH;
4225 memcpy(next_element, request, copy_count);
4226 memcpy(queue_group->iq_element_array[path],
4227 (u8 *)request + copy_count,
4228 iu_length - copy_count);
4229 }
4230
4231 iq_pi = (iq_pi + num_elements_needed) %
4232 ctrl_info->num_elements_per_iq;
4233
4234 list_del(&io_request->request_list_entry);
4235 }
4236
4237 if (iq_pi != queue_group->iq_pi_copy[path]) {
4238 queue_group->iq_pi_copy[path] = iq_pi;
4239 /*
4240 * This write notifies the controller that one or more IUs are
4241 * available to be processed.
4242 */
4243 writel(iq_pi, queue_group->iq_pi[path]);
4244 }
4245
4246 spin_unlock_irqrestore(&queue_group->submit_lock[path], flags);
4247}
4248
1f37e992
KB		 4249#define PQI_WAIT_FOR_COMPLETION_IO_TIMEOUT_SECS 10
4250
4251static int pqi_wait_for_completion_io(struct pqi_ctrl_info *ctrl_info,
4252 struct completion *wait)
4253{
4254 int rc;
1f37e992
KB		 4255
4256 while (1) {
4257 if (wait_for_completion_io_timeout(wait,
4fd22c13 4258 PQI_WAIT_FOR_COMPLETION_IO_TIMEOUT_SECS * PQI_HZ)) {
1f37e992
KB		 4259 rc = 0;
4260 break;
4261 }
4262
4263 pqi_check_ctrl_health(ctrl_info);
4264 if (pqi_ctrl_offline(ctrl_info)) {
4265 rc = -ENXIO;
4266 break;
4267 }
1f37e992
KB		 4268 }
4269
4270 return rc;
4271}
4272
6c223761
KB		 4273static void pqi_raid_synchronous_complete(struct pqi_io_request *io_request,
4274 void *context)
4275{
4276 struct completion *waiting = context;
4277
4278 complete(waiting);
4279}
4280
694c5d5b
KB		 4281static int pqi_process_raid_io_error_synchronous(
4282 struct pqi_raid_error_info *error_info)
26b390ab
KB		 4283{
4284 int rc = -EIO;
4285
4286 switch (error_info->data_out_result) {
4287 case PQI_DATA_IN_OUT_GOOD:
4288 if (error_info->status == SAM_STAT_GOOD)
4289 rc = 0;
4290 break;
4291 case PQI_DATA_IN_OUT_UNDERFLOW:
4292 if (error_info->status == SAM_STAT_GOOD ||
4293 error_info->status == SAM_STAT_CHECK_CONDITION)
4294 rc = 0;
4295 break;
4296 case PQI_DATA_IN_OUT_ABORTED:
4297 rc = PQI_CMD_STATUS_ABORTED;
4298 break;
4299 }
4300
4301 return rc;
4302}
4303
ae0c189d
KB		 4304static inline bool pqi_is_blockable_request(struct pqi_iu_header *request)
4305{
4306 return (request->driver_flags & PQI_DRIVER_NONBLOCKABLE_REQUEST) == 0;
4307}
4308
6c223761
KB		 4309static int pqi_submit_raid_request_synchronous(struct pqi_ctrl_info *ctrl_info,
4310 struct pqi_iu_header *request, unsigned int flags,
ae0c189d 4311 struct pqi_raid_error_info *error_info)
6c223761 4312{
957c5ab1 4313 int rc = 0;
6c223761 4314 struct pqi_io_request *io_request;
6c223761 4315 size_t iu_length;
957c5ab1 4316 DECLARE_COMPLETION_ONSTACK(wait);
6c223761 4317
6c223761
KB		 4318 if (flags & PQI_SYNC_FLAGS_INTERRUPTABLE) {
4319 if (down_interruptible(&ctrl_info->sync_request_sem))
4320 return -ERESTARTSYS;
4321 } else {
ae0c189d 4322 down(&ctrl_info->sync_request_sem);
6c223761
KB		 4323 }
4324
7561a7e4 4325 pqi_ctrl_busy(ctrl_info);
ae0c189d
KB		 4326 /*
4327 * Wait for other admin queue updates such as;
4328 * config table changes, OFA memory updates, ...
4329 */
4330 if (pqi_is_blockable_request(request))
4331 pqi_wait_if_ctrl_blocked(ctrl_info);
7561a7e4 4332
376fb880
KB		 4333 if (pqi_ctrl_offline(ctrl_info)) {
4334 rc = -ENXIO;
4335 goto out;
4336 }
4337
6c223761
KB		 4338 io_request = pqi_alloc_io_request(ctrl_info);
4339
4340 put_unaligned_le16(io_request->index,
4341 &(((struct pqi_raid_path_request *)request)->request_id));
4342
4343 if (request->iu_type == PQI_REQUEST_IU_RAID_PATH_IO)
4344 ((struct pqi_raid_path_request *)request)->error_index =
4345 ((struct pqi_raid_path_request *)request)->request_id;
4346
4347 iu_length = get_unaligned_le16(&request->iu_length) +
4348 PQI_REQUEST_HEADER_LENGTH;
4349 memcpy(io_request->iu, request, iu_length);
4350
957c5ab1
KB		 4351 io_request->io_complete_callback = pqi_raid_synchronous_complete;
4352 io_request->context = &wait;
4353
583891c9 4354 pqi_start_io(ctrl_info, &ctrl_info->queue_groups[PQI_DEFAULT_QUEUE_GROUP], RAID_PATH,
957c5ab1
KB		 4355 io_request);
4356
ae0c189d 4357 pqi_wait_for_completion_io(ctrl_info, &wait);
6c223761
KB		 4358
4359 if (error_info) {
4360 if (io_request->error_info)
583891c9 4361 memcpy(error_info, io_request->error_info, sizeof(*error_info));
6c223761
KB		 4362 else
4363 memset(error_info, 0, sizeof(*error_info));
4364 } else if (rc == 0 && io_request->error_info) {
583891c9 4365 rc = pqi_process_raid_io_error_synchronous(io_request->error_info);
6c223761
KB		 4366 }
4367
4368 pqi_free_io_request(io_request);
4369
7561a7e4 4370out:
ae0c189d 4371 pqi_ctrl_unbusy(ctrl_info);
6c223761
KB		 4372 up(&ctrl_info->sync_request_sem);
4373
4374 return rc;
4375}
4376
4377static int pqi_validate_admin_response(
4378 struct pqi_general_admin_response *response, u8 expected_function_code)
4379{
4380 if (response->header.iu_type != PQI_RESPONSE_IU_GENERAL_ADMIN)
4381 return -EINVAL;
4382
4383 if (get_unaligned_le16(&response->header.iu_length) !=
4384 PQI_GENERAL_ADMIN_IU_LENGTH)
4385 return -EINVAL;
4386
4387 if (response->function_code != expected_function_code)
4388 return -EINVAL;
4389
4390 if (response->status != PQI_GENERAL_ADMIN_STATUS_SUCCESS)
4391 return -EINVAL;
4392
4393 return 0;
4394}
4395
4396static int pqi_submit_admin_request_synchronous(
4397 struct pqi_ctrl_info *ctrl_info,
4398 struct pqi_general_admin_request *request,
4399 struct pqi_general_admin_response *response)
4400{
4401 int rc;
4402
4403 pqi_submit_admin_request(ctrl_info, request);
4404
4405 rc = pqi_poll_for_admin_response(ctrl_info, response);
4406
4407 if (rc == 0)
ae0c189d 4408 rc = pqi_validate_admin_response(response, request->function_code);
6c223761
KB		 4409
4410 return rc;
4411}
4412
4413static int pqi_report_device_capability(struct pqi_ctrl_info *ctrl_info)
4414{
4415 int rc;
4416 struct pqi_general_admin_request request;
4417 struct pqi_general_admin_response response;
4418 struct pqi_device_capability *capability;
4419 struct pqi_iu_layer_descriptor *sop_iu_layer_descriptor;
4420
4421 capability = kmalloc(sizeof(*capability), GFP_KERNEL);
4422 if (!capability)
4423 return -ENOMEM;
4424
4425 memset(&request, 0, sizeof(request));
4426
4427 request.header.iu_type = PQI_REQUEST_IU_GENERAL_ADMIN;
4428 put_unaligned_le16(PQI_GENERAL_ADMIN_IU_LENGTH,
4429 &request.header.iu_length);
4430 request.function_code =
4431 PQI_GENERAL_ADMIN_FUNCTION_REPORT_DEVICE_CAPABILITY;
4432 put_unaligned_le32(sizeof(*capability),
4433 &request.data.report_device_capability.buffer_length);
4434
4435 rc = pqi_map_single(ctrl_info->pci_dev,
4436 &request.data.report_device_capability.sg_descriptor,
4437 capability, sizeof(*capability),
6917a9cc 4438 DMA_FROM_DEVICE);
6c223761
KB		 4439 if (rc)
4440 goto out;
4441
583891c9 4442 rc = pqi_submit_admin_request_synchronous(ctrl_info, &request, &response);
6c223761
KB		 4443
4444 pqi_pci_unmap(ctrl_info->pci_dev,
4445 &request.data.report_device_capability.sg_descriptor, 1,
6917a9cc 4446 DMA_FROM_DEVICE);
6c223761
KB		 4447
4448 if (rc)
4449 goto out;
4450
4451 if (response.status != PQI_GENERAL_ADMIN_STATUS_SUCCESS) {
4452 rc = -EIO;
4453 goto out;
4454 }
4455
4456 ctrl_info->max_inbound_queues =
4457 get_unaligned_le16(&capability->max_inbound_queues);
4458 ctrl_info->max_elements_per_iq =
4459 get_unaligned_le16(&capability->max_elements_per_iq);
4460 ctrl_info->max_iq_element_length =
4461 get_unaligned_le16(&capability->max_iq_element_length)
4462 * 16;
4463 ctrl_info->max_outbound_queues =
4464 get_unaligned_le16(&capability->max_outbound_queues);
4465 ctrl_info->max_elements_per_oq =
4466 get_unaligned_le16(&capability->max_elements_per_oq);
4467 ctrl_info->max_oq_element_length =
4468 get_unaligned_le16(&capability->max_oq_element_length)
4469 * 16;
4470
4471 sop_iu_layer_descriptor =
4472 &capability->iu_layer_descriptors[PQI_PROTOCOL_SOP];
4473
4474 ctrl_info->max_inbound_iu_length_per_firmware =
4475 get_unaligned_le16(
4476 &sop_iu_layer_descriptor->max_inbound_iu_length);
4477 ctrl_info->inbound_spanning_supported =
4478 sop_iu_layer_descriptor->inbound_spanning_supported;
4479 ctrl_info->outbound_spanning_supported =
4480 sop_iu_layer_descriptor->outbound_spanning_supported;
4481
4482out:
4483 kfree(capability);
4484
4485 return rc;
4486}
4487
4488static int pqi_validate_device_capability(struct pqi_ctrl_info *ctrl_info)
4489{
4490 if (ctrl_info->max_iq_element_length <
4491 PQI_OPERATIONAL_IQ_ELEMENT_LENGTH) {
4492 dev_err(&ctrl_info->pci_dev->dev,
4493 "max. inbound queue element length of %d is less than the required length of %d\n",
4494 ctrl_info->max_iq_element_length,
4495 PQI_OPERATIONAL_IQ_ELEMENT_LENGTH);
4496 return -EINVAL;
4497 }
4498
4499 if (ctrl_info->max_oq_element_length <
4500 PQI_OPERATIONAL_OQ_ELEMENT_LENGTH) {
4501 dev_err(&ctrl_info->pci_dev->dev,
4502 "max. outbound queue element length of %d is less than the required length of %d\n",
4503 ctrl_info->max_oq_element_length,
4504 PQI_OPERATIONAL_OQ_ELEMENT_LENGTH);
4505 return -EINVAL;
4506 }
4507
4508 if (ctrl_info->max_inbound_iu_length_per_firmware <
4509 PQI_OPERATIONAL_IQ_ELEMENT_LENGTH) {
4510 dev_err(&ctrl_info->pci_dev->dev,
4511 "max. inbound IU length of %u is less than the min. required length of %d\n",
4512 ctrl_info->max_inbound_iu_length_per_firmware,
4513 PQI_OPERATIONAL_IQ_ELEMENT_LENGTH);
4514 return -EINVAL;
4515 }
4516
77668f41
KB		 4517 if (!ctrl_info->inbound_spanning_supported) {
4518 dev_err(&ctrl_info->pci_dev->dev,
4519 "the controller does not support inbound spanning\n");
4520 return -EINVAL;
4521 }
4522
4523 if (ctrl_info->outbound_spanning_supported) {
4524 dev_err(&ctrl_info->pci_dev->dev,
4525 "the controller supports outbound spanning but this driver does not\n");
4526 return -EINVAL;
4527 }
4528
6c223761
KB		 4529 return 0;
4530}
4531
6c223761
KB		 4532static int pqi_create_event_queue(struct pqi_ctrl_info *ctrl_info)
4533{
4534 int rc;
4535 struct pqi_event_queue *event_queue;
4536 struct pqi_general_admin_request request;
4537 struct pqi_general_admin_response response;
4538
4539 event_queue = &ctrl_info->event_queue;
4540
4541 /*
4542 * Create OQ (Outbound Queue - device to host queue) to dedicate
4543 * to events.
4544 */
4545 memset(&request, 0, sizeof(request));
4546 request.header.iu_type = PQI_REQUEST_IU_GENERAL_ADMIN;
4547 put_unaligned_le16(PQI_GENERAL_ADMIN_IU_LENGTH,
4548 &request.header.iu_length);
4549 request.function_code = PQI_GENERAL_ADMIN_FUNCTION_CREATE_OQ;
4550 put_unaligned_le16(event_queue->oq_id,
4551 &request.data.create_operational_oq.queue_id);
4552 put_unaligned_le64((u64)event_queue->oq_element_array_bus_addr,
4553 &request.data.create_operational_oq.element_array_addr);
4554 put_unaligned_le64((u64)event_queue->oq_pi_bus_addr,
4555 &request.data.create_operational_oq.pi_addr);
4556 put_unaligned_le16(PQI_NUM_EVENT_QUEUE_ELEMENTS,
4557 &request.data.create_operational_oq.num_elements);
4558 put_unaligned_le16(PQI_EVENT_OQ_ELEMENT_LENGTH / 16,
4559 &request.data.create_operational_oq.element_length);
4560 request.data.create_operational_oq.queue_protocol = PQI_PROTOCOL_SOP;
4561 put_unaligned_le16(event_queue->int_msg_num,
4562 &request.data.create_operational_oq.int_msg_num);
4563
4564 rc = pqi_submit_admin_request_synchronous(ctrl_info, &request,
4565 &response);
4566 if (rc)
4567 return rc;
4568
4569 event_queue->oq_ci = ctrl_info->iomem_base +
4570 PQI_DEVICE_REGISTERS_OFFSET +
4571 get_unaligned_le64(
4572 &response.data.create_operational_oq.oq_ci_offset);
4573
4574 return 0;
4575}
4576
061ef06a
KB		 4577static int pqi_create_queue_group(struct pqi_ctrl_info *ctrl_info,
4578 unsigned int group_number)
6c223761 4579{
6c223761
KB		 4580 int rc;
4581 struct pqi_queue_group *queue_group;
4582 struct pqi_general_admin_request request;
4583 struct pqi_general_admin_response response;
4584
061ef06a 4585 queue_group = &ctrl_info->queue_groups[group_number];
6c223761
KB		 4586
4587 /*
4588 * Create IQ (Inbound Queue - host to device queue) for
4589 * RAID path.
4590 */
4591 memset(&request, 0, sizeof(request));
4592 request.header.iu_type = PQI_REQUEST_IU_GENERAL_ADMIN;
4593 put_unaligned_le16(PQI_GENERAL_ADMIN_IU_LENGTH,
4594 &request.header.iu_length);
4595 request.function_code = PQI_GENERAL_ADMIN_FUNCTION_CREATE_IQ;
4596 put_unaligned_le16(queue_group->iq_id[RAID_PATH],
4597 &request.data.create_operational_iq.queue_id);
4598 put_unaligned_le64(
4599 (u64)queue_group->iq_element_array_bus_addr[RAID_PATH],
4600 &request.data.create_operational_iq.element_array_addr);
4601 put_unaligned_le64((u64)queue_group->iq_ci_bus_addr[RAID_PATH],
4602 &request.data.create_operational_iq.ci_addr);
4603 put_unaligned_le16(ctrl_info->num_elements_per_iq,
4604 &request.data.create_operational_iq.num_elements);
4605 put_unaligned_le16(PQI_OPERATIONAL_IQ_ELEMENT_LENGTH / 16,
4606 &request.data.create_operational_iq.element_length);
4607 request.data.create_operational_iq.queue_protocol = PQI_PROTOCOL_SOP;
4608
4609 rc = pqi_submit_admin_request_synchronous(ctrl_info, &request,
4610 &response);
4611 if (rc) {
4612 dev_err(&ctrl_info->pci_dev->dev,
4613 "error creating inbound RAID queue\n");
4614 return rc;
4615 }
4616
4617 queue_group->iq_pi[RAID_PATH] = ctrl_info->iomem_base +
4618 PQI_DEVICE_REGISTERS_OFFSET +
4619 get_unaligned_le64(
4620 &response.data.create_operational_iq.iq_pi_offset);
4621
4622 /*
4623 * Create IQ (Inbound Queue - host to device queue) for
4624 * Advanced I/O (AIO) path.
4625 */
4626 memset(&request, 0, sizeof(request));
4627 request.header.iu_type = PQI_REQUEST_IU_GENERAL_ADMIN;
4628 put_unaligned_le16(PQI_GENERAL_ADMIN_IU_LENGTH,
4629 &request.header.iu_length);
4630 request.function_code = PQI_GENERAL_ADMIN_FUNCTION_CREATE_IQ;
4631 put_unaligned_le16(queue_group->iq_id[AIO_PATH],
4632 &request.data.create_operational_iq.queue_id);
4633 put_unaligned_le64((u64)queue_group->
4634 iq_element_array_bus_addr[AIO_PATH],
4635 &request.data.create_operational_iq.element_array_addr);
4636 put_unaligned_le64((u64)queue_group->iq_ci_bus_addr[AIO_PATH],
4637 &request.data.create_operational_iq.ci_addr);
4638 put_unaligned_le16(ctrl_info->num_elements_per_iq,
4639 &request.data.create_operational_iq.num_elements);
4640 put_unaligned_le16(PQI_OPERATIONAL_IQ_ELEMENT_LENGTH / 16,
4641 &request.data.create_operational_iq.element_length);
4642 request.data.create_operational_iq.queue_protocol = PQI_PROTOCOL_SOP;
4643
4644 rc = pqi_submit_admin_request_synchronous(ctrl_info, &request,
4645 &response);
4646 if (rc) {
4647 dev_err(&ctrl_info->pci_dev->dev,
4648 "error creating inbound AIO queue\n");
339faa81 4649 return rc;
6c223761
KB		 4650 }
4651
4652 queue_group->iq_pi[AIO_PATH] = ctrl_info->iomem_base +
4653 PQI_DEVICE_REGISTERS_OFFSET +
4654 get_unaligned_le64(
4655 &response.data.create_operational_iq.iq_pi_offset);
4656
4657 /*
4658 * Designate the 2nd IQ as the AIO path. By default, all IQs are
4659 * assumed to be for RAID path I/O unless we change the queue's
4660 * property.
4661 */
4662 memset(&request, 0, sizeof(request));
4663 request.header.iu_type = PQI_REQUEST_IU_GENERAL_ADMIN;
4664 put_unaligned_le16(PQI_GENERAL_ADMIN_IU_LENGTH,
4665 &request.header.iu_length);
4666 request.function_code = PQI_GENERAL_ADMIN_FUNCTION_CHANGE_IQ_PROPERTY;
4667 put_unaligned_le16(queue_group->iq_id[AIO_PATH],
4668 &request.data.change_operational_iq_properties.queue_id);
4669 put_unaligned_le32(PQI_IQ_PROPERTY_IS_AIO_QUEUE,
4670 &request.data.change_operational_iq_properties.vendor_specific);
4671
4672 rc = pqi_submit_admin_request_synchronous(ctrl_info, &request,
4673 &response);
4674 if (rc) {
4675 dev_err(&ctrl_info->pci_dev->dev,
4676 "error changing queue property\n");
339faa81 4677 return rc;
6c223761
KB		 4678 }
4679
4680 /*
4681 * Create OQ (Outbound Queue - device to host queue).
4682 */
4683 memset(&request, 0, sizeof(request));
4684 request.header.iu_type = PQI_REQUEST_IU_GENERAL_ADMIN;
4685 put_unaligned_le16(PQI_GENERAL_ADMIN_IU_LENGTH,
4686 &request.header.iu_length);
4687 request.function_code = PQI_GENERAL_ADMIN_FUNCTION_CREATE_OQ;
4688 put_unaligned_le16(queue_group->oq_id,
4689 &request.data.create_operational_oq.queue_id);
4690 put_unaligned_le64((u64)queue_group->oq_element_array_bus_addr,
4691 &request.data.create_operational_oq.element_array_addr);
4692 put_unaligned_le64((u64)queue_group->oq_pi_bus_addr,
4693 &request.data.create_operational_oq.pi_addr);
4694 put_unaligned_le16(ctrl_info->num_elements_per_oq,
4695 &request.data.create_operational_oq.num_elements);
4696 put_unaligned_le16(PQI_OPERATIONAL_OQ_ELEMENT_LENGTH / 16,
4697 &request.data.create_operational_oq.element_length);
4698 request.data.create_operational_oq.queue_protocol = PQI_PROTOCOL_SOP;
4699 put_unaligned_le16(queue_group->int_msg_num,
4700 &request.data.create_operational_oq.int_msg_num);
4701
4702 rc = pqi_submit_admin_request_synchronous(ctrl_info, &request,
4703 &response);
4704 if (rc) {
4705 dev_err(&ctrl_info->pci_dev->dev,
4706 "error creating outbound queue\n");
339faa81 4707 return rc;
6c223761
KB		 4708 }
4709
4710 queue_group->oq_ci = ctrl_info->iomem_base +
4711 PQI_DEVICE_REGISTERS_OFFSET +
4712 get_unaligned_le64(
4713 &response.data.create_operational_oq.oq_ci_offset);
4714
6c223761 4715 return 0;
6c223761
KB		 4716}
4717
4718static int pqi_create_queues(struct pqi_ctrl_info *ctrl_info)
4719{
4720 int rc;
4721 unsigned int i;
4722
4723 rc = pqi_create_event_queue(ctrl_info);
4724 if (rc) {
4725 dev_err(&ctrl_info->pci_dev->dev,
4726 "error creating event queue\n");
4727 return rc;
4728 }
4729
4730 for (i = 0; i < ctrl_info->num_queue_groups; i++) {
061ef06a 4731 rc = pqi_create_queue_group(ctrl_info, i);
6c223761
KB		 4732 if (rc) {
4733 dev_err(&ctrl_info->pci_dev->dev,
4734 "error creating queue group number %u/%u\n",
4735 i, ctrl_info->num_queue_groups);
4736 return rc;
4737 }
4738 }
4739
4740 return 0;
4741}
4742
4743#define PQI_REPORT_EVENT_CONFIG_BUFFER_LENGTH \
5f492a7a 4744 struct_size((struct pqi_event_config *)0, descriptors, PQI_MAX_EVENT_DESCRIPTORS)
6c223761 4745
6a50d6ad
KB		 4746static int pqi_configure_events(struct pqi_ctrl_info *ctrl_info,
4747 bool enable_events)
6c223761
KB		 4748{
4749 int rc;
4750 unsigned int i;
4751 struct pqi_event_config *event_config;
6a50d6ad 4752 struct pqi_event_descriptor *event_descriptor;
6c223761
KB		 4753 struct pqi_general_management_request request;
4754
4755 event_config = kmalloc(PQI_REPORT_EVENT_CONFIG_BUFFER_LENGTH,
4756 GFP_KERNEL);
4757 if (!event_config)
4758 return -ENOMEM;
4759
4760 memset(&request, 0, sizeof(request));
4761
4762 request.header.iu_type = PQI_REQUEST_IU_REPORT_VENDOR_EVENT_CONFIG;
4763 put_unaligned_le16(offsetof(struct pqi_general_management_request,
4764 data.report_event_configuration.sg_descriptors[1]) -
4765 PQI_REQUEST_HEADER_LENGTH, &request.header.iu_length);
4766 put_unaligned_le32(PQI_REPORT_EVENT_CONFIG_BUFFER_LENGTH,
4767 &request.data.report_event_configuration.buffer_length);
4768
4769 rc = pqi_map_single(ctrl_info->pci_dev,
4770 request.data.report_event_configuration.sg_descriptors,
4771 event_config, PQI_REPORT_EVENT_CONFIG_BUFFER_LENGTH,
6917a9cc 4772 DMA_FROM_DEVICE);
6c223761
KB		 4773 if (rc)
4774 goto out;
4775
ae0c189d 4776 rc = pqi_submit_raid_request_synchronous(ctrl_info, &request.header, 0, NULL);
6c223761
KB		 4777
4778 pqi_pci_unmap(ctrl_info->pci_dev,
4779 request.data.report_event_configuration.sg_descriptors, 1,
6917a9cc 4780 DMA_FROM_DEVICE);
6c223761
KB		 4781
4782 if (rc)
4783 goto out;
4784
6a50d6ad
KB		 4785 for (i = 0; i < event_config->num_event_descriptors; i++) {
4786 event_descriptor = &event_config->descriptors[i];
4787 if (enable_events &&
4788 pqi_is_supported_event(event_descriptor->event_type))
583891c9 4789 put_unaligned_le16(ctrl_info->event_queue.oq_id,
6a50d6ad
KB		 4790 &event_descriptor->oq_id);
4791 else
4792 put_unaligned_le16(0, &event_descriptor->oq_id);
4793 }
6c223761
KB		 4794
4795 memset(&request, 0, sizeof(request));
4796
4797 request.header.iu_type = PQI_REQUEST_IU_SET_VENDOR_EVENT_CONFIG;
4798 put_unaligned_le16(offsetof(struct pqi_general_management_request,
4799 data.report_event_configuration.sg_descriptors[1]) -
4800 PQI_REQUEST_HEADER_LENGTH, &request.header.iu_length);
4801 put_unaligned_le32(PQI_REPORT_EVENT_CONFIG_BUFFER_LENGTH,
4802 &request.data.report_event_configuration.buffer_length);
4803
4804 rc = pqi_map_single(ctrl_info->pci_dev,
4805 request.data.report_event_configuration.sg_descriptors,
4806 event_config, PQI_REPORT_EVENT_CONFIG_BUFFER_LENGTH,
6917a9cc 4807 DMA_TO_DEVICE);
6c223761
KB		 4808 if (rc)
4809 goto out;
4810
ae0c189d 4811 rc = pqi_submit_raid_request_synchronous(ctrl_info, &request.header, 0, NULL);
6c223761
KB		 4812
4813 pqi_pci_unmap(ctrl_info->pci_dev,
4814 request.data.report_event_configuration.sg_descriptors, 1,
6917a9cc 4815 DMA_TO_DEVICE);
6c223761
KB		 4816
4817out:
4818 kfree(event_config);
4819
4820 return rc;
4821}
4822
6a50d6ad
KB		 4823static inline int pqi_enable_events(struct pqi_ctrl_info *ctrl_info)
4824{
4825 return pqi_configure_events(ctrl_info, true);
4826}
4827
6c223761
KB		 4828static void pqi_free_all_io_requests(struct pqi_ctrl_info *ctrl_info)
4829{
4830 unsigned int i;
4831 struct device *dev;
4832 size_t sg_chain_buffer_length;
4833 struct pqi_io_request *io_request;
4834
4835 if (!ctrl_info->io_request_pool)
4836 return;
4837
4838 dev = &ctrl_info->pci_dev->dev;
4839 sg_chain_buffer_length = ctrl_info->sg_chain_buffer_length;
4840 io_request = ctrl_info->io_request_pool;
4841
4842 for (i = 0; i < ctrl_info->max_io_slots; i++) {
4843 kfree(io_request->iu);
4844 if (!io_request->sg_chain_buffer)
4845 break;
4846 dma_free_coherent(dev, sg_chain_buffer_length,
4847 io_request->sg_chain_buffer,
4848 io_request->sg_chain_buffer_dma_handle);
4849 io_request++;
4850 }
4851
4852 kfree(ctrl_info->io_request_pool);
4853 ctrl_info->io_request_pool = NULL;
4854}
4855
4856static inline int pqi_alloc_error_buffer(struct pqi_ctrl_info *ctrl_info)
4857{
694c5d5b
KB		 4858 ctrl_info->error_buffer = dma_alloc_coherent(&ctrl_info->pci_dev->dev,
4859 ctrl_info->error_buffer_length,
4860 &ctrl_info->error_buffer_dma_handle,
4861 GFP_KERNEL);
6c223761
KB		 4862 if (!ctrl_info->error_buffer)
4863 return -ENOMEM;
4864
4865 return 0;
4866}
4867
4868static int pqi_alloc_io_resources(struct pqi_ctrl_info *ctrl_info)
4869{
4870 unsigned int i;
4871 void *sg_chain_buffer;
4872 size_t sg_chain_buffer_length;
4873 dma_addr_t sg_chain_buffer_dma_handle;
4874 struct device *dev;
4875 struct pqi_io_request *io_request;
4876
583891c9
KB		 4877 ctrl_info->io_request_pool = kcalloc(ctrl_info->max_io_slots,
4878 sizeof(ctrl_info->io_request_pool[0]), GFP_KERNEL);
6c223761
KB		 4879
4880 if (!ctrl_info->io_request_pool) {
4881 dev_err(&ctrl_info->pci_dev->dev,
4882 "failed to allocate I/O request pool\n");
4883 goto error;
4884 }
4885
4886 dev = &ctrl_info->pci_dev->dev;
4887 sg_chain_buffer_length = ctrl_info->sg_chain_buffer_length;
4888 io_request = ctrl_info->io_request_pool;
4889
4890 for (i = 0; i < ctrl_info->max_io_slots; i++) {
583891c9 4891 io_request->iu = kmalloc(ctrl_info->max_inbound_iu_length, GFP_KERNEL);
6c223761
KB		 4892
4893 if (!io_request->iu) {
4894 dev_err(&ctrl_info->pci_dev->dev,
4895 "failed to allocate IU buffers\n");
4896 goto error;
4897 }
4898
4899 sg_chain_buffer = dma_alloc_coherent(dev,
4900 sg_chain_buffer_length, &sg_chain_buffer_dma_handle,
4901 GFP_KERNEL);
4902
4903 if (!sg_chain_buffer) {
4904 dev_err(&ctrl_info->pci_dev->dev,
4905 "failed to allocate PQI scatter-gather chain buffers\n");
4906 goto error;
4907 }
4908
4909 io_request->index = i;
4910 io_request->sg_chain_buffer = sg_chain_buffer;
583891c9 4911 io_request->sg_chain_buffer_dma_handle = sg_chain_buffer_dma_handle;
6c223761
KB		 4912 io_request++;
4913 }
4914
4915 return 0;
4916
4917error:
4918 pqi_free_all_io_requests(ctrl_info);
4919
4920 return -ENOMEM;
4921}
4922
4923/*
4924 * Calculate required resources that are sized based on max. outstanding
4925 * requests and max. transfer size.
4926 */
4927
4928static void pqi_calculate_io_resources(struct pqi_ctrl_info *ctrl_info)
4929{
4930 u32 max_transfer_size;
4931 u32 max_sg_entries;
4932
4933 ctrl_info->scsi_ml_can_queue =
4934 ctrl_info->max_outstanding_requests - PQI_RESERVED_IO_SLOTS;
4935 ctrl_info->max_io_slots = ctrl_info->max_outstanding_requests;
4936
4937 ctrl_info->error_buffer_length =
4938 ctrl_info->max_io_slots * PQI_ERROR_BUFFER_ELEMENT_LENGTH;
4939
d727a776
KB		 4940 if (reset_devices)
4941 max_transfer_size = min(ctrl_info->max_transfer_size,
4942 PQI_MAX_TRANSFER_SIZE_KDUMP);
4943 else
4944 max_transfer_size = min(ctrl_info->max_transfer_size,
4945 PQI_MAX_TRANSFER_SIZE);
6c223761
KB		 4946
4947 max_sg_entries = max_transfer_size / PAGE_SIZE;
4948
4949 /* +1 to cover when the buffer is not page-aligned. */
4950 max_sg_entries++;
4951
4952 max_sg_entries = min(ctrl_info->max_sg_entries, max_sg_entries);
4953
4954 max_transfer_size = (max_sg_entries - 1) * PAGE_SIZE;
4955
4956 ctrl_info->sg_chain_buffer_length =
e1d213bd
KB		 4957 (max_sg_entries * sizeof(struct pqi_sg_descriptor)) +
4958 PQI_EXTRA_SGL_MEMORY;
6c223761
KB		 4959 ctrl_info->sg_tablesize = max_sg_entries;
4960 ctrl_info->max_sectors = max_transfer_size / 512;
4961}
4962
4963static void pqi_calculate_queue_resources(struct pqi_ctrl_info *ctrl_info)
4964{
6c223761
KB		 4965 int num_queue_groups;
4966 u16 num_elements_per_iq;
4967 u16 num_elements_per_oq;
4968
d727a776
KB		 4969 if (reset_devices) {
4970 num_queue_groups = 1;
4971 } else {
4972 int num_cpus;
4973 int max_queue_groups;
4974
4975 max_queue_groups = min(ctrl_info->max_inbound_queues / 2,
4976 ctrl_info->max_outbound_queues - 1);
4977 max_queue_groups = min(max_queue_groups, PQI_MAX_QUEUE_GROUPS);
6c223761 4978
d727a776
KB		 4979 num_cpus = num_online_cpus();
4980 num_queue_groups = min(num_cpus, ctrl_info->max_msix_vectors);
4981 num_queue_groups = min(num_queue_groups, max_queue_groups);
4982 }
6c223761
KB		 4983
4984 ctrl_info->num_queue_groups = num_queue_groups;
061ef06a 4985 ctrl_info->max_hw_queue_index = num_queue_groups - 1;
6c223761 4986
77668f41
KB		 4987 /*
4988 * Make sure that the max. inbound IU length is an even multiple
4989 * of our inbound element length.
4990 */
4991 ctrl_info->max_inbound_iu_length =
4992 (ctrl_info->max_inbound_iu_length_per_firmware /
4993 PQI_OPERATIONAL_IQ_ELEMENT_LENGTH) *
4994 PQI_OPERATIONAL_IQ_ELEMENT_LENGTH;
6c223761
KB		 4995
4996 num_elements_per_iq =
4997 (ctrl_info->max_inbound_iu_length /
4998 PQI_OPERATIONAL_IQ_ELEMENT_LENGTH);
4999
5000 /* Add one because one element in each queue is unusable. */
5001 num_elements_per_iq++;
5002
5003 num_elements_per_iq = min(num_elements_per_iq,
5004 ctrl_info->max_elements_per_iq);
5005
5006 num_elements_per_oq = ((num_elements_per_iq - 1) * 2) + 1;
5007 num_elements_per_oq = min(num_elements_per_oq,
5008 ctrl_info->max_elements_per_oq);
5009
5010 ctrl_info->num_elements_per_iq = num_elements_per_iq;
5011 ctrl_info->num_elements_per_oq = num_elements_per_oq;
5012
5013 ctrl_info->max_sg_per_iu =
5014 ((ctrl_info->max_inbound_iu_length -
5015 PQI_OPERATIONAL_IQ_ELEMENT_LENGTH) /
5016 sizeof(struct pqi_sg_descriptor)) +
5017 PQI_MAX_EMBEDDED_SG_DESCRIPTORS;
6702d2c4
DB		 5018
5019 ctrl_info->max_sg_per_r56_iu =
5020 ((ctrl_info->max_inbound_iu_length -
5021 PQI_OPERATIONAL_IQ_ELEMENT_LENGTH) /
5022 sizeof(struct pqi_sg_descriptor)) +
5023 PQI_MAX_EMBEDDED_R56_SG_DESCRIPTORS;
6c223761
KB		 5024}
5025
583891c9
KB		 5026static inline void pqi_set_sg_descriptor(struct pqi_sg_descriptor *sg_descriptor,
5027 struct scatterlist *sg)
6c223761
KB		 5028{
5029 u64 address = (u64)sg_dma_address(sg);
5030 unsigned int length = sg_dma_len(sg);
5031
5032 put_unaligned_le64(address, &sg_descriptor->address);
5033 put_unaligned_le32(length, &sg_descriptor->length);
5034 put_unaligned_le32(0, &sg_descriptor->flags);
5035}
5036
1a22bc4b
DB		 5037static unsigned int pqi_build_sg_list(struct pqi_sg_descriptor *sg_descriptor,
5038 struct scatterlist *sg, int sg_count, struct pqi_io_request *io_request,
5039 int max_sg_per_iu, bool *chained)
6c223761
KB		 5040{
5041 int i;
6c223761 5042 unsigned int num_sg_in_iu;
6c223761 5043
1a22bc4b 5044 *chained = false;
6c223761 5045 i = 0;
1a22bc4b
DB		 5046 num_sg_in_iu = 0;
5047 max_sg_per_iu--; /* Subtract 1 to leave room for chain marker. */
6c223761
KB		 5048
5049 while (1) {
5050 pqi_set_sg_descriptor(sg_descriptor, sg);
1a22bc4b 5051 if (!*chained)
6c223761
KB		 5052 num_sg_in_iu++;
5053 i++;
5054 if (i == sg_count)
5055 break;
5056 sg_descriptor++;
5057 if (i == max_sg_per_iu) {
1a22bc4b 5058 put_unaligned_le64((u64)io_request->sg_chain_buffer_dma_handle,
6c223761 5059 &sg_descriptor->address);
1a22bc4b 5060 put_unaligned_le32((sg_count - num_sg_in_iu) * sizeof(*sg_descriptor),
6c223761 5061 &sg_descriptor->length);
1a22bc4b
DB		 5062 put_unaligned_le32(CISS_SG_CHAIN, &sg_descriptor->flags);
5063 *chained = true;
6c223761
KB		 5064 num_sg_in_iu++;
5065 sg_descriptor = io_request->sg_chain_buffer;
5066 }
5067 sg = sg_next(sg);
5068 }
5069
5070 put_unaligned_le32(CISS_SG_LAST, &sg_descriptor->flags);
6c223761 5071
1a22bc4b 5072 return num_sg_in_iu;
6c223761
KB		 5073}
5074
6c223761
KB		 5075static int pqi_build_raid_sg_list(struct pqi_ctrl_info *ctrl_info,
5076 struct pqi_raid_path_request *request, struct scsi_cmnd *scmd,
6c223761
KB		 5077 struct pqi_io_request *io_request)
5078{
6c223761
KB		 5079 u16 iu_length;
5080 int sg_count;
a60eec02
KB		 5081 bool chained;
5082 unsigned int num_sg_in_iu;
6c223761
KB		 5083 struct scatterlist *sg;
5084 struct pqi_sg_descriptor *sg_descriptor;
5085
5086 sg_count = scsi_dma_map(scmd);
5087 if (sg_count < 0)
5088 return sg_count;
a60eec02 5089
6c223761 5090 iu_length = offsetof(struct pqi_raid_path_request, sg_descriptors) -
a60eec02 5091 PQI_REQUEST_HEADER_LENGTH;
a60eec02 5092
6c223761
KB		 5093 if (sg_count == 0)
5094 goto out;
5095
a60eec02
KB		 5096 sg = scsi_sglist(scmd);
5097 sg_descriptor = request->sg_descriptors;
a60eec02 5098
1a22bc4b
DB		 5099 num_sg_in_iu = pqi_build_sg_list(sg_descriptor, sg, sg_count, io_request,
5100 ctrl_info->max_sg_per_iu, &chained);
6c223761 5101
a60eec02 5102 request->partial = chained;
6c223761 5103 iu_length += num_sg_in_iu * sizeof(*sg_descriptor);
a60eec02
KB		 5104
5105out:
6c223761 5106 put_unaligned_le16(iu_length, &request->header.iu_length);
6c223761
KB		 5107
5108 return 0;
5109}
5110
7a012c23
DB		 5111static int pqi_build_aio_r1_sg_list(struct pqi_ctrl_info *ctrl_info,
5112 struct pqi_aio_r1_path_request *request, struct scsi_cmnd *scmd,
5113 struct pqi_io_request *io_request)
6c223761 5114{
7a012c23
DB		 5115 u16 iu_length;
5116 int sg_count;
5117 bool chained;
5118 unsigned int num_sg_in_iu;
5119 struct scatterlist *sg;
5120 struct pqi_sg_descriptor *sg_descriptor;
5121
5122 sg_count = scsi_dma_map(scmd);
5123 if (sg_count < 0)
5124 return sg_count;
5125
5126 iu_length = offsetof(struct pqi_aio_r1_path_request, sg_descriptors) -
5127 PQI_REQUEST_HEADER_LENGTH;
5128 num_sg_in_iu = 0;
5129
5130 if (sg_count == 0)
5131 goto out;
5132
5133 sg = scsi_sglist(scmd);
5134 sg_descriptor = request->sg_descriptors;
5135
5136 num_sg_in_iu = pqi_build_sg_list(sg_descriptor, sg, sg_count, io_request,
5137 ctrl_info->max_sg_per_iu, &chained);
5138
5139 request->partial = chained;
5140 iu_length += num_sg_in_iu * sizeof(*sg_descriptor);
5141
5142out:
5143 put_unaligned_le16(iu_length, &request->header.iu_length);
5144 request->num_sg_descriptors = num_sg_in_iu;
5145
5146 return 0;
5147}
5148
6702d2c4
DB		 5149static int pqi_build_aio_r56_sg_list(struct pqi_ctrl_info *ctrl_info,
5150 struct pqi_aio_r56_path_request *request, struct scsi_cmnd *scmd,
5151 struct pqi_io_request *io_request)
5152{
5153 u16 iu_length;
5154 int sg_count;
5155 bool chained;
5156 unsigned int num_sg_in_iu;
5157 struct scatterlist *sg;
5158 struct pqi_sg_descriptor *sg_descriptor;
5159
5160 sg_count = scsi_dma_map(scmd);
5161 if (sg_count < 0)
5162 return sg_count;
5163
5164 iu_length = offsetof(struct pqi_aio_r56_path_request, sg_descriptors) -
5165 PQI_REQUEST_HEADER_LENGTH;
5166 num_sg_in_iu = 0;
5167
5168 if (sg_count != 0) {
5169 sg = scsi_sglist(scmd);
5170 sg_descriptor = request->sg_descriptors;
5171
5172 num_sg_in_iu = pqi_build_sg_list(sg_descriptor, sg, sg_count, io_request,
5173 ctrl_info->max_sg_per_r56_iu, &chained);
5174
5175 request->partial = chained;
5176 iu_length += num_sg_in_iu * sizeof(*sg_descriptor);
5177 }
5178
5179 put_unaligned_le16(iu_length, &request->header.iu_length);
5180 request->num_sg_descriptors = num_sg_in_iu;
5181
5182 return 0;
5183}
5184
6c223761
KB		 5185static int pqi_build_aio_sg_list(struct pqi_ctrl_info *ctrl_info,
5186 struct pqi_aio_path_request *request, struct scsi_cmnd *scmd,
5187 struct pqi_io_request *io_request)
5188{
6c223761
KB		 5189 u16 iu_length;
5190 int sg_count;
a60eec02
KB		 5191 bool chained;
5192 unsigned int num_sg_in_iu;
6c223761
KB		 5193 struct scatterlist *sg;
5194 struct pqi_sg_descriptor *sg_descriptor;
5195
5196 sg_count = scsi_dma_map(scmd);
5197 if (sg_count < 0)
5198 return sg_count;
a60eec02
KB		 5199
5200 iu_length = offsetof(struct pqi_aio_path_request, sg_descriptors) -
5201 PQI_REQUEST_HEADER_LENGTH;
5202 num_sg_in_iu = 0;
5203
6c223761
KB		 5204 if (sg_count == 0)
5205 goto out;
5206
a60eec02
KB		 5207 sg = scsi_sglist(scmd);
5208 sg_descriptor = request->sg_descriptors;
a60eec02 5209
1a22bc4b
DB		 5210 num_sg_in_iu = pqi_build_sg_list(sg_descriptor, sg, sg_count, io_request,
5211 ctrl_info->max_sg_per_iu, &chained);
6c223761 5212
a60eec02 5213 request->partial = chained;
6c223761 5214 iu_length += num_sg_in_iu * sizeof(*sg_descriptor);
a60eec02
KB		 5215
5216out:
6c223761
KB		 5217 put_unaligned_le16(iu_length, &request->header.iu_length);
5218 request->num_sg_descriptors = num_sg_in_iu;
5219
5220 return 0;
5221}
5222
5223static void pqi_raid_io_complete(struct pqi_io_request *io_request,
5224 void *context)
5225{
5226 struct scsi_cmnd *scmd;
5227
5228 scmd = io_request->scmd;
5229 pqi_free_io_request(io_request);
5230 scsi_dma_unmap(scmd);
5231 pqi_scsi_done(scmd);
5232}
5233
376fb880
KB		 5234static int pqi_raid_submit_scsi_cmd_with_io_request(
5235 struct pqi_ctrl_info *ctrl_info, struct pqi_io_request *io_request,
6c223761
KB		 5236 struct pqi_scsi_dev *device, struct scsi_cmnd *scmd,
5237 struct pqi_queue_group *queue_group)
5238{
5239 int rc;
5240 size_t cdb_length;
6c223761
KB		 5241 struct pqi_raid_path_request *request;
5242
6c223761
KB		 5243 io_request->io_complete_callback = pqi_raid_io_complete;
5244 io_request->scmd = scmd;
5245
6c223761 5246 request = io_request->iu;
583891c9 5247 memset(request, 0, offsetof(struct pqi_raid_path_request, sg_descriptors));
6c223761
KB		 5248
5249 request->header.iu_type = PQI_REQUEST_IU_RAID_PATH_IO;
5250 put_unaligned_le32(scsi_bufflen(scmd), &request->buffer_length);
5251 request->task_attribute = SOP_TASK_ATTRIBUTE_SIMPLE;
5252 put_unaligned_le16(io_request->index, &request->request_id);
5253 request->error_index = request->request_id;
583891c9 5254 memcpy(request->lun_number, device->scsi3addr, sizeof(request->lun_number));
6c223761
KB		 5255
5256 cdb_length = min_t(size_t, scmd->cmd_len, sizeof(request->cdb));
5257 memcpy(request->cdb, scmd->cmnd, cdb_length);
5258
5259 switch (cdb_length) {
5260 case 6:
5261 case 10:
5262 case 12:
5263 case 16:
583891c9 5264 request->additional_cdb_bytes_usage = SOP_ADDITIONAL_CDB_BYTES_0;
6c223761
KB		 5265 break;
5266 case 20:
583891c9 5267 request->additional_cdb_bytes_usage = SOP_ADDITIONAL_CDB_BYTES_4;
6c223761
KB		 5268 break;
5269 case 24:
583891c9 5270 request->additional_cdb_bytes_usage = SOP_ADDITIONAL_CDB_BYTES_8;
6c223761
KB		 5271 break;
5272 case 28:
583891c9 5273 request->additional_cdb_bytes_usage = SOP_ADDITIONAL_CDB_BYTES_12;
6c223761
KB		 5274 break;
5275 case 32:
5276 default:
583891c9 5277 request->additional_cdb_bytes_usage = SOP_ADDITIONAL_CDB_BYTES_16;
6c223761
KB		 5278 break;
5279 }
5280
5281 switch (scmd->sc_data_direction) {
5282 case DMA_TO_DEVICE:
5283 request->data_direction = SOP_READ_FLAG;
5284 break;
5285 case DMA_FROM_DEVICE:
5286 request->data_direction = SOP_WRITE_FLAG;
5287 break;
5288 case DMA_NONE:
5289 request->data_direction = SOP_NO_DIRECTION_FLAG;
5290 break;
5291 case DMA_BIDIRECTIONAL:
5292 request->data_direction = SOP_BIDIRECTIONAL;
5293 break;
5294 default:
5295 dev_err(&ctrl_info->pci_dev->dev,
5296 "unknown data direction: %d\n",
5297 scmd->sc_data_direction);
6c223761
KB		 5298 break;
5299 }
5300
5301 rc = pqi_build_raid_sg_list(ctrl_info, request, scmd, io_request);
5302 if (rc) {
5303 pqi_free_io_request(io_request);
5304 return SCSI_MLQUEUE_HOST_BUSY;
5305 }
5306
5307 pqi_start_io(ctrl_info, queue_group, RAID_PATH, io_request);
5308
5309 return 0;
5310}
5311
376fb880
KB		 5312static inline int pqi_raid_submit_scsi_cmd(struct pqi_ctrl_info *ctrl_info,
5313 struct pqi_scsi_dev *device, struct scsi_cmnd *scmd,
5314 struct pqi_queue_group *queue_group)
5315{
5316 struct pqi_io_request *io_request;
5317
5318 io_request = pqi_alloc_io_request(ctrl_info);
5319
5320 return pqi_raid_submit_scsi_cmd_with_io_request(ctrl_info, io_request,
5321 device, scmd, queue_group);
5322}
5323
376fb880
KB		 5324static bool pqi_raid_bypass_retry_needed(struct pqi_io_request *io_request)
5325{
5326 struct scsi_cmnd *scmd;
03b288cf 5327 struct pqi_scsi_dev *device;
376fb880
KB		 5328 struct pqi_ctrl_info *ctrl_info;
5329
5330 if (!io_request->raid_bypass)
5331 return false;
5332
5333 scmd = io_request->scmd;
5334 if ((scmd->result & 0xff) == SAM_STAT_GOOD)
5335 return false;
5336 if (host_byte(scmd->result) == DID_NO_CONNECT)
5337 return false;
5338
03b288cf 5339 device = scmd->device->hostdata;
5be9db06 5340 if (pqi_device_offline(device) || pqi_device_in_remove(device))
03b288cf
KB		 5341 return false;
5342
376fb880
KB		 5343 ctrl_info = shost_to_hba(scmd->device->host);
5344 if (pqi_ctrl_offline(ctrl_info))
5345 return false;
5346
5347 return true;
5348}
5349
6c223761
KB		 5350static void pqi_aio_io_complete(struct pqi_io_request *io_request,
5351 void *context)
5352{
5353 struct scsi_cmnd *scmd;
5354
5355 scmd = io_request->scmd;
5356 scsi_dma_unmap(scmd);
5be9db06 5357 if (io_request->status == -EAGAIN || pqi_raid_bypass_retry_needed(io_request)) {
6c223761 5358 set_host_byte(scmd, DID_IMM_RETRY);
5be9db06 5359 scmd->SCp.this_residual++;
376fb880 5360 }
5be9db06 5361
6c223761
KB		 5362 pqi_free_io_request(io_request);
5363 pqi_scsi_done(scmd);
5364}
5365
5366static inline int pqi_aio_submit_scsi_cmd(struct pqi_ctrl_info *ctrl_info,
5367 struct pqi_scsi_dev *device, struct scsi_cmnd *scmd,
5368 struct pqi_queue_group *queue_group)
5369{
5370 return pqi_aio_submit_io(ctrl_info, scmd, device->aio_handle,
376fb880 5371 scmd->cmnd, scmd->cmd_len, queue_group, NULL, false);
6c223761
KB		 5372}
5373
5374static int pqi_aio_submit_io(struct pqi_ctrl_info *ctrl_info,
5375 struct scsi_cmnd *scmd, u32 aio_handle, u8 *cdb,
5376 unsigned int cdb_length, struct pqi_queue_group *queue_group,
376fb880 5377 struct pqi_encryption_info *encryption_info, bool raid_bypass)
6c223761
KB		 5378{
5379 int rc;
5380 struct pqi_io_request *io_request;
5381 struct pqi_aio_path_request *request;
5382
5383 io_request = pqi_alloc_io_request(ctrl_info);
5384 io_request->io_complete_callback = pqi_aio_io_complete;
5385 io_request->scmd = scmd;
376fb880 5386 io_request->raid_bypass = raid_bypass;
6c223761
KB		 5387
5388 request = io_request->iu;
583891c9 5389 memset(request, 0, offsetof(struct pqi_raid_path_request, sg_descriptors));
6c223761
KB		 5390
5391 request->header.iu_type = PQI_REQUEST_IU_AIO_PATH_IO;
5392 put_unaligned_le32(aio_handle, &request->nexus_id);
5393 put_unaligned_le32(scsi_bufflen(scmd), &request->buffer_length);
5394 request->task_attribute = SOP_TASK_ATTRIBUTE_SIMPLE;
5395 put_unaligned_le16(io_request->index, &request->request_id);
5396 request->error_index = request->request_id;
5397 if (cdb_length > sizeof(request->cdb))
5398 cdb_length = sizeof(request->cdb);
5399 request->cdb_length = cdb_length;
5400 memcpy(request->cdb, cdb, cdb_length);
5401
5402 switch (scmd->sc_data_direction) {
5403 case DMA_TO_DEVICE:
5404 request->data_direction = SOP_READ_FLAG;
5405 break;
5406 case DMA_FROM_DEVICE:
5407 request->data_direction = SOP_WRITE_FLAG;
5408 break;
5409 case DMA_NONE:
5410 request->data_direction = SOP_NO_DIRECTION_FLAG;
5411 break;
5412 case DMA_BIDIRECTIONAL:
5413 request->data_direction = SOP_BIDIRECTIONAL;
5414 break;
5415 default:
5416 dev_err(&ctrl_info->pci_dev->dev,
5417 "unknown data direction: %d\n",
5418 scmd->sc_data_direction);
6c223761
KB		 5419 break;
5420 }
5421
5422 if (encryption_info) {
5423 request->encryption_enable = true;
5424 put_unaligned_le16(encryption_info->data_encryption_key_index,
5425 &request->data_encryption_key_index);
5426 put_unaligned_le32(encryption_info->encrypt_tweak_lower,
5427 &request->encrypt_tweak_lower);
5428 put_unaligned_le32(encryption_info->encrypt_tweak_upper,
5429 &request->encrypt_tweak_upper);
5430 }
5431
5432 rc = pqi_build_aio_sg_list(ctrl_info, request, scmd, io_request);
5433 if (rc) {
5434 pqi_free_io_request(io_request);
5435 return SCSI_MLQUEUE_HOST_BUSY;
5436 }
5437
5438 pqi_start_io(ctrl_info, queue_group, AIO_PATH, io_request);
5439
5440 return 0;
5441}
5442
7a012c23
DB		 5443static int pqi_aio_submit_r1_write_io(struct pqi_ctrl_info *ctrl_info,
5444 struct scsi_cmnd *scmd, struct pqi_queue_group *queue_group,
5445 struct pqi_encryption_info *encryption_info, struct pqi_scsi_dev *device,
5446 struct pqi_scsi_dev_raid_map_data *rmd)
7a012c23
DB		 5447{
5448 int rc;
5449 struct pqi_io_request *io_request;
5450 struct pqi_aio_r1_path_request *r1_request;
5451
5452 io_request = pqi_alloc_io_request(ctrl_info);
5453 io_request->io_complete_callback = pqi_aio_io_complete;
5454 io_request->scmd = scmd;
5455 io_request->raid_bypass = true;
5456
5457 r1_request = io_request->iu;
5458 memset(r1_request, 0, offsetof(struct pqi_aio_r1_path_request, sg_descriptors));
5459
5460 r1_request->header.iu_type = PQI_REQUEST_IU_AIO_PATH_RAID1_IO;
7a012c23
DB		 5461 put_unaligned_le16(*(u16 *)device->scsi3addr & 0x3fff, &r1_request->volume_id);
5462 r1_request->num_drives = rmd->num_it_nexus_entries;
5463 put_unaligned_le32(rmd->it_nexus[0], &r1_request->it_nexus_1);
5464 put_unaligned_le32(rmd->it_nexus[1], &r1_request->it_nexus_2);
5465 if (rmd->num_it_nexus_entries == 3)
5466 put_unaligned_le32(rmd->it_nexus[2], &r1_request->it_nexus_3);
5467
5468 put_unaligned_le32(scsi_bufflen(scmd), &r1_request->data_length);
5469 r1_request->task_attribute = SOP_TASK_ATTRIBUTE_SIMPLE;
5470 put_unaligned_le16(io_request->index, &r1_request->request_id);
5471 r1_request->error_index = r1_request->request_id;
5472 if (rmd->cdb_length > sizeof(r1_request->cdb))
5473 rmd->cdb_length = sizeof(r1_request->cdb);
5474 r1_request->cdb_length = rmd->cdb_length;
5475 memcpy(r1_request->cdb, rmd->cdb, rmd->cdb_length);
5476
5477 /* The direction is always write. */
5478 r1_request->data_direction = SOP_READ_FLAG;
5479
5480 if (encryption_info) {
5481 r1_request->encryption_enable = true;
5482 put_unaligned_le16(encryption_info->data_encryption_key_index,
5483 &r1_request->data_encryption_key_index);
5484 put_unaligned_le32(encryption_info->encrypt_tweak_lower,
5485 &r1_request->encrypt_tweak_lower);
5486 put_unaligned_le32(encryption_info->encrypt_tweak_upper,
5487 &r1_request->encrypt_tweak_upper);
5488 }
5489
5490 rc = pqi_build_aio_r1_sg_list(ctrl_info, r1_request, scmd, io_request);
5491 if (rc) {
5492 pqi_free_io_request(io_request);
5493 return SCSI_MLQUEUE_HOST_BUSY;
5494 }
5495
5496 pqi_start_io(ctrl_info, queue_group, AIO_PATH, io_request);
5497
5498 return 0;
5499}
5500
6702d2c4
DB		 5501static int pqi_aio_submit_r56_write_io(struct pqi_ctrl_info *ctrl_info,
5502 struct scsi_cmnd *scmd, struct pqi_queue_group *queue_group,
5503 struct pqi_encryption_info *encryption_info, struct pqi_scsi_dev *device,
5504 struct pqi_scsi_dev_raid_map_data *rmd)
5505{
5506 int rc;
5507 struct pqi_io_request *io_request;
5508 struct pqi_aio_r56_path_request *r56_request;
5509
5510 io_request = pqi_alloc_io_request(ctrl_info);
5511 io_request->io_complete_callback = pqi_aio_io_complete;
5512 io_request->scmd = scmd;
5513 io_request->raid_bypass = true;
5514
5515 r56_request = io_request->iu;
5516 memset(r56_request, 0, offsetof(struct pqi_aio_r56_path_request, sg_descriptors));
5517
5518 if (device->raid_level == SA_RAID_5 || device->raid_level == SA_RAID_51)
5519 r56_request->header.iu_type = PQI_REQUEST_IU_AIO_PATH_RAID5_IO;
5520 else
5521 r56_request->header.iu_type = PQI_REQUEST_IU_AIO_PATH_RAID6_IO;
5522
5523 put_unaligned_le16(*(u16 *)device->scsi3addr & 0x3fff, &r56_request->volume_id);
5524 put_unaligned_le32(rmd->aio_handle, &r56_request->data_it_nexus);
5525 put_unaligned_le32(rmd->p_parity_it_nexus, &r56_request->p_parity_it_nexus);
5526 if (rmd->raid_level == SA_RAID_6) {
5527 put_unaligned_le32(rmd->q_parity_it_nexus, &r56_request->q_parity_it_nexus);
5528 r56_request->xor_multiplier = rmd->xor_mult;
5529 }
5530 put_unaligned_le32(scsi_bufflen(scmd), &r56_request->data_length);
5531 r56_request->task_attribute = SOP_TASK_ATTRIBUTE_SIMPLE;
5532 put_unaligned_le64(rmd->row, &r56_request->row);
5533
5534 put_unaligned_le16(io_request->index, &r56_request->request_id);
5535 r56_request->error_index = r56_request->request_id;
5536
5537 if (rmd->cdb_length > sizeof(r56_request->cdb))
5538 rmd->cdb_length = sizeof(r56_request->cdb);
5539 r56_request->cdb_length = rmd->cdb_length;
5540 memcpy(r56_request->cdb, rmd->cdb, rmd->cdb_length);
5541
5542 /* The direction is always write. */
5543 r56_request->data_direction = SOP_READ_FLAG;
5544
5545 if (encryption_info) {
5546 r56_request->encryption_enable = true;
5547 put_unaligned_le16(encryption_info->data_encryption_key_index,
5548 &r56_request->data_encryption_key_index);
5549 put_unaligned_le32(encryption_info->encrypt_tweak_lower,
5550 &r56_request->encrypt_tweak_lower);
5551 put_unaligned_le32(encryption_info->encrypt_tweak_upper,
5552 &r56_request->encrypt_tweak_upper);
5553 }
5554
5555 rc = pqi_build_aio_r56_sg_list(ctrl_info, r56_request, scmd, io_request);
5556 if (rc) {
5557 pqi_free_io_request(io_request);
5558 return SCSI_MLQUEUE_HOST_BUSY;
5559 }
5560
5561 pqi_start_io(ctrl_info, queue_group, AIO_PATH, io_request);
5562
5563 return 0;
5564}
5565
061ef06a
KB		 5566static inline u16 pqi_get_hw_queue(struct pqi_ctrl_info *ctrl_info,
5567 struct scsi_cmnd *scmd)
5568{
5569 u16 hw_queue;
5570
12db0f93 5571 hw_queue = blk_mq_unique_tag_to_hwq(blk_mq_unique_tag(scsi_cmd_to_rq(scmd)));
061ef06a
KB		 5572 if (hw_queue > ctrl_info->max_hw_queue_index)
5573 hw_queue = 0;
5574
5575 return hw_queue;
5576}
5577
5be9db06
KB		 5578static inline bool pqi_is_bypass_eligible_request(struct scsi_cmnd *scmd)
5579{
12db0f93 5580 if (blk_rq_is_passthrough(scsi_cmd_to_rq(scmd)))
5be9db06
KB		 5581 return false;
5582
5583 return scmd->SCp.this_residual == 0;
5584}
5585
7561a7e4
KB		 5586/*
5587 * This function gets called just before we hand the completed SCSI request
5588 * back to the SML.
5589 */
5590
5591void pqi_prep_for_scsi_done(struct scsi_cmnd *scmd)
5592{
5593 struct pqi_scsi_dev *device;
5594
1e46731e
MR		 5595 if (!scmd->device) {
5596 set_host_byte(scmd, DID_NO_CONNECT);
5597 return;
5598 }
5599
7561a7e4 5600 device = scmd->device->hostdata;
1e46731e
MR		 5601 if (!device) {
5602 set_host_byte(scmd, DID_NO_CONNECT);
5603 return;
5604 }
5605
7561a7e4
KB		 5606 atomic_dec(&device->scsi_cmds_outstanding);
5607}
5608
c7ffedb3 5609static bool pqi_is_parity_write_stream(struct pqi_ctrl_info *ctrl_info,
7d81d2b8 5610 struct scsi_cmnd *scmd)
c7ffedb3
DB		 5611{
5612 u32 oldest_jiffies;
5613 u8 lru_index;
5614 int i;
5615 int rc;
5616 struct pqi_scsi_dev *device;
5617 struct pqi_stream_data *pqi_stream_data;
5618 struct pqi_scsi_dev_raid_map_data rmd;
5619
5620 if (!ctrl_info->enable_stream_detection)
5621 return false;
5622
5623 rc = pqi_get_aio_lba_and_block_count(scmd, &rmd);
5624 if (rc)
5625 return false;
5626
5627 /* Check writes only. */
5628 if (!rmd.is_write)
5629 return false;
5630
5631 device = scmd->device->hostdata;
5632
5633 /* Check for RAID 5/6 streams. */
5634 if (device->raid_level != SA_RAID_5 && device->raid_level != SA_RAID_6)
5635 return false;
5636
5637 /*
5638 * If controller does not support AIO RAID{5,6} writes, need to send
5639 * requests down non-AIO path.
5640 */
5641 if ((device->raid_level == SA_RAID_5 && !ctrl_info->enable_r5_writes) ||
5642 (device->raid_level == SA_RAID_6 && !ctrl_info->enable_r6_writes))
5643 return true;
5644
5645 lru_index = 0;
5646 oldest_jiffies = INT_MAX;
5647 for (i = 0; i < NUM_STREAMS_PER_LUN; i++) {
5648 pqi_stream_data = &device->stream_data[i];
5649 /*
5650 * Check for adjacent request or request is within
5651 * the previous request.
5652 */
5653 if ((pqi_stream_data->next_lba &&
5654 rmd.first_block >= pqi_stream_data->next_lba) &&
5655 rmd.first_block <= pqi_stream_data->next_lba +
5656 rmd.block_cnt) {
5657 pqi_stream_data->next_lba = rmd.first_block +
5658 rmd.block_cnt;
5659 pqi_stream_data->last_accessed = jiffies;
5660 return true;
5661 }
5662
5663 /* unused entry */
5664 if (pqi_stream_data->last_accessed == 0) {
5665 lru_index = i;
5666 break;
5667 }
5668
5669 /* Find entry with oldest last accessed time. */
5670 if (pqi_stream_data->last_accessed <= oldest_jiffies) {
5671 oldest_jiffies = pqi_stream_data->last_accessed;
5672 lru_index = i;
5673 }
5674 }
5675
5676 /* Set LRU entry. */
5677 pqi_stream_data = &device->stream_data[lru_index];
5678 pqi_stream_data->last_accessed = jiffies;
5679 pqi_stream_data->next_lba = rmd.first_block + rmd.block_cnt;
5680
5681 return false;
5682}
5683
5684static int pqi_scsi_queue_command(struct Scsi_Host *shost, struct scsi_cmnd *scmd)
6c223761
KB		 5685{
5686 int rc;
5687 struct pqi_ctrl_info *ctrl_info;
5688 struct pqi_scsi_dev *device;
061ef06a 5689 u16 hw_queue;
6c223761
KB		 5690 struct pqi_queue_group *queue_group;
5691 bool raid_bypassed;
5692
5693 device = scmd->device->hostdata;
6c223761 5694
1e46731e
MR		 5695 if (!device) {
5696 set_host_byte(scmd, DID_NO_CONNECT);
5697 pqi_scsi_done(scmd);
5698 return 0;
5699 }
5700
7561a7e4
KB		 5701 atomic_inc(&device->scsi_cmds_outstanding);
5702
583891c9
KB		 5703 ctrl_info = shost_to_hba(shost);
5704
1bdf6e93 5705 if (pqi_ctrl_offline(ctrl_info) || pqi_device_in_remove(device)) {
6c223761
KB		 5706 set_host_byte(scmd, DID_NO_CONNECT);
5707 pqi_scsi_done(scmd);
5708 return 0;
5709 }
5710
5be9db06 5711 if (pqi_ctrl_blocked(ctrl_info)) {
7561a7e4
KB		 5712 rc = SCSI_MLQUEUE_HOST_BUSY;
5713 goto out;
5714 }
5715
7d81d2b8
KB		 5716 /*
5717 * This is necessary because the SML doesn't zero out this field during
5718 * error recovery.
5719 */
5720 scmd->result = 0;
5721
061ef06a
KB		 5722 hw_queue = pqi_get_hw_queue(ctrl_info, scmd);
5723 queue_group = &ctrl_info->queue_groups[hw_queue];
6c223761
KB		 5724
5725 if (pqi_is_logical_device(device)) {
5726 raid_bypassed = false;
588a63fe 5727 if (device->raid_bypass_enabled &&
5be9db06
KB		 5728 pqi_is_bypass_eligible_request(scmd) &&
5729 !pqi_is_parity_write_stream(ctrl_info, scmd)) {
5730 rc = pqi_raid_bypass_submit_scsi_cmd(ctrl_info, device, scmd, queue_group);
8b664fef 5731 if (rc == 0 || rc == SCSI_MLQUEUE_HOST_BUSY) {
376fb880 5732 raid_bypassed = true;
8b664fef
KB		 5733 atomic_inc(&device->raid_bypass_cnt);
5734 }
6c223761
KB		 5735 }
5736 if (!raid_bypassed)
8b664fef 5737 rc = pqi_raid_submit_scsi_cmd(ctrl_info, device, scmd, queue_group);
6c223761
KB		 5738 } else {
5739 if (device->aio_enabled)
8b664fef 5740 rc = pqi_aio_submit_scsi_cmd(ctrl_info, device, scmd, queue_group);
6c223761 5741 else
8b664fef 5742 rc = pqi_raid_submit_scsi_cmd(ctrl_info, device, scmd, queue_group);
6c223761
KB		 5743 }
5744
7561a7e4 5745out:
7561a7e4
KB		 5746 if (rc)
5747 atomic_dec(&device->scsi_cmds_outstanding);
5748
6c223761
KB		 5749 return rc;
5750}
5751
7561a7e4
KB		 5752static int pqi_wait_until_queued_io_drained(struct pqi_ctrl_info *ctrl_info,
5753 struct pqi_queue_group *queue_group)
5754{
5755 unsigned int path;
5756 unsigned long flags;
5757 bool list_is_empty;
5758
5759 for (path = 0; path < 2; path++) {
5760 while (1) {
5761 spin_lock_irqsave(
5762 &queue_group->submit_lock[path], flags);
5763 list_is_empty =
5764 list_empty(&queue_group->request_list[path]);
5765 spin_unlock_irqrestore(
5766 &queue_group->submit_lock[path], flags);
5767 if (list_is_empty)
5768 break;
5769 pqi_check_ctrl_health(ctrl_info);
5770 if (pqi_ctrl_offline(ctrl_info))
5771 return -ENXIO;
5772 usleep_range(1000, 2000);
5773 }
5774 }
5775
5776 return 0;
5777}
5778
5779static int pqi_wait_until_inbound_queues_empty(struct pqi_ctrl_info *ctrl_info)
5780{
5781 int rc;
5782 unsigned int i;
5783 unsigned int path;
5784 struct pqi_queue_group *queue_group;
5785 pqi_index_t iq_pi;
5786 pqi_index_t iq_ci;
5787
5788 for (i = 0; i < ctrl_info->num_queue_groups; i++) {
5789 queue_group = &ctrl_info->queue_groups[i];
5790
5791 rc = pqi_wait_until_queued_io_drained(ctrl_info, queue_group);
5792 if (rc)
5793 return rc;
5794
5795 for (path = 0; path < 2; path++) {
5796 iq_pi = queue_group->iq_pi_copy[path];
5797
5798 while (1) {
dac12fbc 5799 iq_ci = readl(queue_group->iq_ci[path]);
7561a7e4
KB		 5800 if (iq_ci == iq_pi)
5801 break;
5802 pqi_check_ctrl_health(ctrl_info);
5803 if (pqi_ctrl_offline(ctrl_info))
5804 return -ENXIO;
5805 usleep_range(1000, 2000);
5806 }
5807 }
5808 }
5809
5810 return 0;
5811}
5812
5813static void pqi_fail_io_queued_for_device(struct pqi_ctrl_info *ctrl_info,
5814 struct pqi_scsi_dev *device)
5815{
5816 unsigned int i;
5817 unsigned int path;
5818 struct pqi_queue_group *queue_group;
5819 unsigned long flags;
5820 struct pqi_io_request *io_request;
5821 struct pqi_io_request *next;
5822 struct scsi_cmnd *scmd;
5823 struct pqi_scsi_dev *scsi_device;
5824
5825 for (i = 0; i < ctrl_info->num_queue_groups; i++) {
5826 queue_group = &ctrl_info->queue_groups[i];
5827
5828 for (path = 0; path < 2; path++) {
5829 spin_lock_irqsave(
5830 &queue_group->submit_lock[path], flags);
5831
5832 list_for_each_entry_safe(io_request, next,
5833 &queue_group->request_list[path],
5834 request_list_entry) {
583891c9 5835
7561a7e4
KB		 5836 scmd = io_request->scmd;
5837 if (!scmd)
5838 continue;
5839
5840 scsi_device = scmd->device->hostdata;
5841 if (scsi_device != device)
5842 continue;
5843
5844 list_del(&io_request->request_list_entry);
5845 set_host_byte(scmd, DID_RESET);
b622a601
MB		 5846 pqi_free_io_request(io_request);
5847 scsi_dma_unmap(scmd);
7561a7e4
KB		 5848 pqi_scsi_done(scmd);
5849 }
5850
5851 spin_unlock_irqrestore(
5852 &queue_group->submit_lock[path], flags);
5853 }
5854 }
5855}
5856
18ff5f08 5857#define PQI_PENDING_IO_WARNING_TIMEOUT_SECS 10
4fd22c13 5858
061ef06a 5859static int pqi_device_wait_for_pending_io(struct pqi_ctrl_info *ctrl_info,
18ff5f08 5860 struct pqi_scsi_dev *device, unsigned long timeout_msecs)
061ef06a 5861{
18ff5f08
KB		 5862 int cmds_outstanding;
5863 unsigned long start_jiffies;
5864 unsigned long warning_timeout;
5865 unsigned long msecs_waiting;
1e46731e 5866
18ff5f08
KB		 5867 start_jiffies = jiffies;
5868 warning_timeout = (PQI_PENDING_IO_WARNING_TIMEOUT_SECS * PQI_HZ) + start_jiffies;
1e46731e 5869
18ff5f08 5870 while ((cmds_outstanding = atomic_read(&device->scsi_cmds_outstanding)) > 0) {
061ef06a
KB		 5871 pqi_check_ctrl_health(ctrl_info);
5872 if (pqi_ctrl_offline(ctrl_info))
5873 return -ENXIO;
18ff5f08
KB		 5874 msecs_waiting = jiffies_to_msecs(jiffies - start_jiffies);
5875 if (msecs_waiting > timeout_msecs) {
5876 dev_err(&ctrl_info->pci_dev->dev,
5877 "scsi %d:%d:%d:%d: timed out after %lu seconds waiting for %d outstanding command(s)\n",
5878 ctrl_info->scsi_host->host_no, device->bus, device->target,
5879 device->lun, msecs_waiting / 1000, cmds_outstanding);
5880 return -ETIMEDOUT;
061ef06a 5881 }
18ff5f08
KB		 5882 if (time_after(jiffies, warning_timeout)) {
5883 dev_warn(&ctrl_info->pci_dev->dev,
5884 "scsi %d:%d:%d:%d: waiting %lu seconds for %d outstanding command(s)\n",
5885 ctrl_info->scsi_host->host_no, device->bus, device->target,
5886 device->lun, msecs_waiting / 1000, cmds_outstanding);
5887 warning_timeout = (PQI_PENDING_IO_WARNING_TIMEOUT_SECS * PQI_HZ) + jiffies;
4fd22c13 5888 }
061ef06a
KB		 5889 usleep_range(1000, 2000);
5890 }
5891
5892 return 0;
5893}
5894
14bb215d
KB		 5895static void pqi_lun_reset_complete(struct pqi_io_request *io_request,
5896 void *context)
6c223761 5897{
14bb215d 5898 struct completion *waiting = context;
6c223761 5899
14bb215d
KB		 5900 complete(waiting);
5901}
6c223761 5902
c2922f17 5903#define PQI_LUN_RESET_POLL_COMPLETION_SECS 10
14bb215d
KB		 5904
5905static int pqi_wait_for_lun_reset_completion(struct pqi_ctrl_info *ctrl_info,
5906 struct pqi_scsi_dev *device, struct completion *wait)
5907{
5908 int rc;
18ff5f08
KB		 5909 unsigned int wait_secs;
5910
5911 wait_secs = 0;
14bb215d
KB		 5912
5913 while (1) {
5914 if (wait_for_completion_io_timeout(wait,
c2922f17 5915 PQI_LUN_RESET_POLL_COMPLETION_SECS * PQI_HZ)) {
14bb215d
KB		 5916 rc = 0;
5917 break;
6c223761
KB		 5918 }
5919
14bb215d
KB		 5920 pqi_check_ctrl_health(ctrl_info);
5921 if (pqi_ctrl_offline(ctrl_info)) {
4e8415e3 5922 rc = -ENXIO;
14bb215d
KB		 5923 break;
5924 }
18ff5f08
KB		 5925
5926 wait_secs += PQI_LUN_RESET_POLL_COMPLETION_SECS;
5927
5928 dev_warn(&ctrl_info->pci_dev->dev,
5929 "scsi %d:%d:%d:%d: waiting %u seconds for LUN reset to complete\n",
5930 ctrl_info->scsi_host->host_no, device->bus, device->target, device->lun,
5931 wait_secs);
6c223761 5932 }
6c223761 5933
14bb215d 5934 return rc;
6c223761
KB		 5935}
5936
18ff5f08
KB		 5937#define PQI_LUN_RESET_FIRMWARE_TIMEOUT_SECS 30
5938
5939static int pqi_lun_reset(struct pqi_ctrl_info *ctrl_info, struct pqi_scsi_dev *device)
6c223761
KB		 5940{
5941 int rc;
5942 struct pqi_io_request *io_request;
5943 DECLARE_COMPLETION_ONSTACK(wait);
5944 struct pqi_task_management_request *request;
5945
6c223761 5946 io_request = pqi_alloc_io_request(ctrl_info);
14bb215d 5947 io_request->io_complete_callback = pqi_lun_reset_complete;
6c223761
KB		 5948 io_request->context = &wait;
5949
5950 request = io_request->iu;
5951 memset(request, 0, sizeof(*request));
5952
5953 request->header.iu_type = PQI_REQUEST_IU_TASK_MANAGEMENT;
5954 put_unaligned_le16(sizeof(*request) - PQI_REQUEST_HEADER_LENGTH,
5955 &request->header.iu_length);
5956 put_unaligned_le16(io_request->index, &request->request_id);
5957 memcpy(request->lun_number, device->scsi3addr,
5958 sizeof(request->lun_number));
5959 request->task_management_function = SOP_TASK_MANAGEMENT_LUN_RESET;
c2922f17 5960 if (ctrl_info->tmf_iu_timeout_supported)
18ff5f08 5961 put_unaligned_le16(PQI_LUN_RESET_FIRMWARE_TIMEOUT_SECS, &request->timeout);
6c223761 5962
583891c9 5963 pqi_start_io(ctrl_info, &ctrl_info->queue_groups[PQI_DEFAULT_QUEUE_GROUP], RAID_PATH,
6c223761
KB		 5964 io_request);
5965
14bb215d
KB		 5966 rc = pqi_wait_for_lun_reset_completion(ctrl_info, device, &wait);
5967 if (rc == 0)
6c223761 5968 rc = io_request->status;
6c223761
KB		 5969
5970 pqi_free_io_request(io_request);
6c223761
KB		 5971
5972 return rc;
5973}
5974
18ff5f08
KB		 5975#define PQI_LUN_RESET_RETRIES 3
5976#define PQI_LUN_RESET_RETRY_INTERVAL_MSECS (10 * 1000)
5977#define PQI_LUN_RESET_PENDING_IO_TIMEOUT_MSECS (10 * 60 * 1000)
5978#define PQI_LUN_RESET_FAILED_PENDING_IO_TIMEOUT_MSECS (2 * 60 * 1000)
6c223761 5979
18ff5f08 5980static int pqi_lun_reset_with_retries(struct pqi_ctrl_info *ctrl_info, struct pqi_scsi_dev *device)
6c223761 5981{
18ff5f08
KB		 5982 int reset_rc;
5983 int wait_rc;
3406384b 5984 unsigned int retries;
18ff5f08 5985 unsigned long timeout_msecs;
6c223761 5986
3406384b 5987 for (retries = 0;;) {
18ff5f08
KB		 5988 reset_rc = pqi_lun_reset(ctrl_info, device);
5989 if (reset_rc == 0 || ++retries > PQI_LUN_RESET_RETRIES)
3406384b
MR		 5990 break;
5991 msleep(PQI_LUN_RESET_RETRY_INTERVAL_MSECS);
5992 }
429fab70 5993
18ff5f08
KB		 5994 timeout_msecs = reset_rc ? PQI_LUN_RESET_FAILED_PENDING_IO_TIMEOUT_MSECS :
5995 PQI_LUN_RESET_PENDING_IO_TIMEOUT_MSECS;
4fd22c13 5996
18ff5f08
KB		 5997 wait_rc = pqi_device_wait_for_pending_io(ctrl_info, device, timeout_msecs);
5998 if (wait_rc && reset_rc == 0)
5999 reset_rc = wait_rc;
6c223761 6000
18ff5f08 6001 return reset_rc == 0 ? SUCCESS : FAILED;
6c223761
KB		 6002}
6003
4fd22c13
MR		 6004static int pqi_device_reset(struct pqi_ctrl_info *ctrl_info,
6005 struct pqi_scsi_dev *device)
6006{
6007 int rc;
6008
4fd22c13
MR		 6009 pqi_ctrl_block_requests(ctrl_info);
6010 pqi_ctrl_wait_until_quiesced(ctrl_info);
6011 pqi_fail_io_queued_for_device(ctrl_info, device);
6012 rc = pqi_wait_until_inbound_queues_empty(ctrl_info);
4fd22c13
MR		 6013 if (rc)
6014 rc = FAILED;
6015 else
37f33181
KB		 6016 rc = pqi_lun_reset_with_retries(ctrl_info, device);
6017 pqi_ctrl_unblock_requests(ctrl_info);
429fab70 6018
4fd22c13
MR		 6019 return rc;
6020}
6021
6c223761
KB		 6022static int pqi_eh_device_reset_handler(struct scsi_cmnd *scmd)
6023{
6024 int rc;
7561a7e4 6025 struct Scsi_Host *shost;
6c223761
KB		 6026 struct pqi_ctrl_info *ctrl_info;
6027 struct pqi_scsi_dev *device;
6028
7561a7e4
KB		 6029 shost = scmd->device->host;
6030 ctrl_info = shost_to_hba(shost);
6c223761
KB		 6031 device = scmd->device->hostdata;
6032
37f33181
KB		 6033 mutex_lock(&ctrl_info->lun_reset_mutex);
6034
6c223761 6035 dev_err(&ctrl_info->pci_dev->dev,
f0e473e0
MB		 6036 "resetting scsi %d:%d:%d:%d due to cmd 0x%02x\n",
6037 shost->host_no,
6038 device->bus, device->target, device->lun,
6039 scmd->cmd_len > 0 ? scmd->cmnd[0] : 0xff);
6c223761 6040
7561a7e4 6041 pqi_check_ctrl_health(ctrl_info);
37f33181 6042 if (pqi_ctrl_offline(ctrl_info))
7561a7e4 6043 rc = FAILED;
37f33181
KB		 6044 else
6045 rc = pqi_device_reset(ctrl_info, device);
429fab70 6046
6c223761
KB		 6047 dev_err(&ctrl_info->pci_dev->dev,
6048 "reset of scsi %d:%d:%d:%d: %s\n",
7561a7e4 6049 shost->host_no, device->bus, device->target, device->lun,
6c223761
KB		 6050 rc == SUCCESS ? "SUCCESS" : "FAILED");
6051
37f33181
KB		 6052 mutex_unlock(&ctrl_info->lun_reset_mutex);
6053
6c223761
KB		 6054 return rc;
6055}
6056
6057static int pqi_slave_alloc(struct scsi_device *sdev)
6058{
6059 struct pqi_scsi_dev *device;
6060 unsigned long flags;
6061 struct pqi_ctrl_info *ctrl_info;
6062 struct scsi_target *starget;
6063 struct sas_rphy *rphy;
6064
6065 ctrl_info = shost_to_hba(sdev->host);
6066
6067 spin_lock_irqsave(&ctrl_info->scsi_device_list_lock, flags);
6068
6069 if (sdev_channel(sdev) == PQI_PHYSICAL_DEVICE_BUS) {
6070 starget = scsi_target(sdev);
6071 rphy = target_to_rphy(starget);
6072 device = pqi_find_device_by_sas_rphy(ctrl_info, rphy);
6073 if (device) {
6074 device->target = sdev_id(sdev);
6075 device->lun = sdev->lun;
6076 device->target_lun_valid = true;
6077 }
6078 } else {
6079 device = pqi_find_scsi_dev(ctrl_info, sdev_channel(sdev),
6080 sdev_id(sdev), sdev->lun);
6081 }
6082
94086f5b 6083 if (device) {
6c223761
KB		 6084 sdev->hostdata = device;
6085 device->sdev = sdev;
6086 if (device->queue_depth) {
6087 device->advertised_queue_depth = device->queue_depth;
6088 scsi_change_queue_depth(sdev,
6089 device->advertised_queue_depth);
6090 }
99a12b48 6091 if (pqi_is_logical_device(device)) {
b6e2ef67 6092 pqi_disable_write_same(sdev);
99a12b48 6093 } else {
2b447f81 6094 sdev->allow_restart = 1;
99a12b48
KB		 6095 if (device->device_type == SA_DEVICE_TYPE_NVME)
6096 pqi_disable_write_same(sdev);
6097 }
6c223761
KB		 6098 }
6099
6100 spin_unlock_irqrestore(&ctrl_info->scsi_device_list_lock, flags);
6101
6102 return 0;
6103}
6104
52198226
CH		 6105static int pqi_map_queues(struct Scsi_Host *shost)
6106{
6107 struct pqi_ctrl_info *ctrl_info = shost_to_hba(shost);
6108
79d3fa9e 6109 return blk_mq_pci_map_queues(&shost->tag_set.map[HCTX_TYPE_DEFAULT],
ed76e329 6110 ctrl_info->pci_dev, 0);
52198226
CH		 6111}
6112
ce143793
KB		 6113static int pqi_slave_configure(struct scsi_device *sdev)
6114{
6115 struct pqi_scsi_dev *device;
6116
6117 device = sdev->hostdata;
6118 device->devtype = sdev->type;
6119
6120 return 0;
6121}
6122
4d15ad38
KB		 6123static void pqi_slave_destroy(struct scsi_device *sdev)
6124{
6125 unsigned long flags;
6126 struct pqi_scsi_dev *device;
6127 struct pqi_ctrl_info *ctrl_info;
6128
6129 ctrl_info = shost_to_hba(sdev->host);
6130
6131 spin_lock_irqsave(&ctrl_info->scsi_device_list_lock, flags);
6132
6133 device = sdev->hostdata;
6134 if (device) {
6135 sdev->hostdata = NULL;
6136 if (!list_empty(&device->scsi_device_list_entry))
6137 list_del(&device->scsi_device_list_entry);
6138 }
6139
6140 spin_unlock_irqrestore(&ctrl_info->scsi_device_list_lock, flags);
6141
6142 if (device) {
6143 pqi_dev_info(ctrl_info, "removed", device);
6144 pqi_free_device(device);
6145 }
6146}
6147
8b664fef 6148static int pqi_getpciinfo_ioctl(struct pqi_ctrl_info *ctrl_info, void __user *arg)
6c223761
KB		 6149{
6150 struct pci_dev *pci_dev;
6151 u32 subsystem_vendor;
6152 u32 subsystem_device;
6153 cciss_pci_info_struct pciinfo;
6154
6155 if (!arg)
6156 return -EINVAL;
6157
6158 pci_dev = ctrl_info->pci_dev;
6159
6160 pciinfo.domain = pci_domain_nr(pci_dev->bus);
6161 pciinfo.bus = pci_dev->bus->number;
6162 pciinfo.dev_fn = pci_dev->devfn;
6163 subsystem_vendor = pci_dev->subsystem_vendor;
6164 subsystem_device = pci_dev->subsystem_device;
8b664fef 6165 pciinfo.board_id = ((subsystem_device << 16) & 0xffff0000) | subsystem_vendor;
6c223761
KB		 6166
6167 if (copy_to_user(arg, &pciinfo, sizeof(pciinfo)))
6168 return -EFAULT;
6169
6170 return 0;
6171}
6172
6173static int pqi_getdrivver_ioctl(void __user *arg)
6174{
6175 u32 version;
6176
6177 if (!arg)
6178 return -EINVAL;
6179
6180 version = (DRIVER_MAJOR << 28) | (DRIVER_MINOR << 24) |
6181 (DRIVER_RELEASE << 16) | DRIVER_REVISION;
6182
6183 if (copy_to_user(arg, &version, sizeof(version)))
6184 return -EFAULT;
6185
6186 return 0;
6187}
6188
6189struct ciss_error_info {
6190 u8 scsi_status;
6191 int command_status;
6192 size_t sense_data_length;
6193};
6194
6195static void pqi_error_info_to_ciss(struct pqi_raid_error_info *pqi_error_info,
6196 struct ciss_error_info *ciss_error_info)
6197{
6198 int ciss_cmd_status;
6199 size_t sense_data_length;
6200
6201 switch (pqi_error_info->data_out_result) {
6202 case PQI_DATA_IN_OUT_GOOD:
6203 ciss_cmd_status = CISS_CMD_STATUS_SUCCESS;
6204 break;
6205 case PQI_DATA_IN_OUT_UNDERFLOW:
6206 ciss_cmd_status = CISS_CMD_STATUS_DATA_UNDERRUN;
6207 break;
6208 case PQI_DATA_IN_OUT_BUFFER_OVERFLOW:
6209 ciss_cmd_status = CISS_CMD_STATUS_DATA_OVERRUN;
6210 break;
6211 case PQI_DATA_IN_OUT_PROTOCOL_ERROR:
6212 case PQI_DATA_IN_OUT_BUFFER_ERROR:
6213 case PQI_DATA_IN_OUT_BUFFER_OVERFLOW_DESCRIPTOR_AREA:
6214 case PQI_DATA_IN_OUT_BUFFER_OVERFLOW_BRIDGE:
6215 case PQI_DATA_IN_OUT_ERROR:
6216 ciss_cmd_status = CISS_CMD_STATUS_PROTOCOL_ERROR;
6217 break;
6218 case PQI_DATA_IN_OUT_HARDWARE_ERROR:
6219 case PQI_DATA_IN_OUT_PCIE_FABRIC_ERROR:
6220 case PQI_DATA_IN_OUT_PCIE_COMPLETION_TIMEOUT:
6221 case PQI_DATA_IN_OUT_PCIE_COMPLETER_ABORT_RECEIVED:
6222 case PQI_DATA_IN_OUT_PCIE_UNSUPPORTED_REQUEST_RECEIVED:
6223 case PQI_DATA_IN_OUT_PCIE_ECRC_CHECK_FAILED:
6224 case PQI_DATA_IN_OUT_PCIE_UNSUPPORTED_REQUEST:
6225 case PQI_DATA_IN_OUT_PCIE_ACS_VIOLATION:
6226 case PQI_DATA_IN_OUT_PCIE_TLP_PREFIX_BLOCKED:
6227 case PQI_DATA_IN_OUT_PCIE_POISONED_MEMORY_READ:
6228 ciss_cmd_status = CISS_CMD_STATUS_HARDWARE_ERROR;
6229 break;
6230 case PQI_DATA_IN_OUT_UNSOLICITED_ABORT:
6231 ciss_cmd_status = CISS_CMD_STATUS_UNSOLICITED_ABORT;
6232 break;
6233 case PQI_DATA_IN_OUT_ABORTED:
6234 ciss_cmd_status = CISS_CMD_STATUS_ABORTED;
6235 break;
6236 case PQI_DATA_IN_OUT_TIMEOUT:
6237 ciss_cmd_status = CISS_CMD_STATUS_TIMEOUT;
6238 break;
6239 default:
6240 ciss_cmd_status = CISS_CMD_STATUS_TARGET_STATUS;
6241 break;
6242 }
6243
6244 sense_data_length =
6245 get_unaligned_le16(&pqi_error_info->sense_data_length);
6246 if (sense_data_length == 0)
6247 sense_data_length =
6248 get_unaligned_le16(&pqi_error_info->response_data_length);
6249 if (sense_data_length)
6250 if (sense_data_length > sizeof(pqi_error_info->data))
6251 sense_data_length = sizeof(pqi_error_info->data);
6252
6253 ciss_error_info->scsi_status = pqi_error_info->status;
6254 ciss_error_info->command_status = ciss_cmd_status;
6255 ciss_error_info->sense_data_length = sense_data_length;
6256}
6257
6258static int pqi_passthru_ioctl(struct pqi_ctrl_info *ctrl_info, void __user *arg)
6259{
6260 int rc;
6261 char *kernel_buffer = NULL;
6262 u16 iu_length;
6263 size_t sense_data_length;
6264 IOCTL_Command_struct iocommand;
6265 struct pqi_raid_path_request request;
6266 struct pqi_raid_error_info pqi_error_info;
6267 struct ciss_error_info ciss_error_info;
6268
6269 if (pqi_ctrl_offline(ctrl_info))
6270 return -ENXIO;
2790cd4d
KB		 6271 if (pqi_ofa_in_progress(ctrl_info) && pqi_ctrl_blocked(ctrl_info))
6272 return -EBUSY;
6c223761
KB		 6273 if (!arg)
6274 return -EINVAL;
6275 if (!capable(CAP_SYS_RAWIO))
6276 return -EPERM;
6277 if (copy_from_user(&iocommand, arg, sizeof(iocommand)))
6278 return -EFAULT;
6279 if (iocommand.buf_size < 1 &&
6280 iocommand.Request.Type.Direction != XFER_NONE)
6281 return -EINVAL;
6282 if (iocommand.Request.CDBLen > sizeof(request.cdb))
6283 return -EINVAL;
6284 if (iocommand.Request.Type.Type != TYPE_CMD)
6285 return -EINVAL;
6286
6287 switch (iocommand.Request.Type.Direction) {
6288 case XFER_NONE:
6289 case XFER_WRITE:
6290 case XFER_READ:
41555d54 6291 case XFER_READ | XFER_WRITE:
6c223761
KB		 6292 break;
6293 default:
6294 return -EINVAL;
6295 }
6296
6297 if (iocommand.buf_size > 0) {
6298 kernel_buffer = kmalloc(iocommand.buf_size, GFP_KERNEL);
6299 if (!kernel_buffer)
6300 return -ENOMEM;
6301 if (iocommand.Request.Type.Direction & XFER_WRITE) {
6302 if (copy_from_user(kernel_buffer, iocommand.buf,
6303 iocommand.buf_size)) {
6304 rc = -EFAULT;
6305 goto out;
6306 }
6307 } else {
6308 memset(kernel_buffer, 0, iocommand.buf_size);
6309 }
6310 }
6311
6312 memset(&request, 0, sizeof(request));
6313
6314 request.header.iu_type = PQI_REQUEST_IU_RAID_PATH_IO;
6315 iu_length = offsetof(struct pqi_raid_path_request, sg_descriptors) -
6316 PQI_REQUEST_HEADER_LENGTH;
6317 memcpy(request.lun_number, iocommand.LUN_info.LunAddrBytes,
6318 sizeof(request.lun_number));
6319 memcpy(request.cdb, iocommand.Request.CDB, iocommand.Request.CDBLen);
6320 request.additional_cdb_bytes_usage = SOP_ADDITIONAL_CDB_BYTES_0;
6321
6322 switch (iocommand.Request.Type.Direction) {
6323 case XFER_NONE:
6324 request.data_direction = SOP_NO_DIRECTION_FLAG;
6325 break;
6326 case XFER_WRITE:
6327 request.data_direction = SOP_WRITE_FLAG;
6328 break;
6329 case XFER_READ:
6330 request.data_direction = SOP_READ_FLAG;
6331 break;
41555d54
KB		 6332 case XFER_READ | XFER_WRITE:
6333 request.data_direction = SOP_BIDIRECTIONAL;
6334 break;
6c223761
KB		 6335 }
6336
6337 request.task_attribute = SOP_TASK_ATTRIBUTE_SIMPLE;
6338
6339 if (iocommand.buf_size > 0) {
6340 put_unaligned_le32(iocommand.buf_size, &request.buffer_length);
6341
6342 rc = pqi_map_single(ctrl_info->pci_dev,
6343 &request.sg_descriptors[0], kernel_buffer,
6917a9cc 6344 iocommand.buf_size, DMA_BIDIRECTIONAL);
6c223761
KB		 6345 if (rc)
6346 goto out;
6347
6348 iu_length += sizeof(request.sg_descriptors[0]);
6349 }
6350
6351 put_unaligned_le16(iu_length, &request.header.iu_length);
6352
21432010 6353 if (ctrl_info->raid_iu_timeout_supported)
6354 put_unaligned_le32(iocommand.Request.Timeout, &request.timeout);
6355
6c223761 6356 rc = pqi_submit_raid_request_synchronous(ctrl_info, &request.header,
ae0c189d 6357 PQI_SYNC_FLAGS_INTERRUPTABLE, &pqi_error_info);
6c223761
KB		 6358
6359 if (iocommand.buf_size > 0)
6360 pqi_pci_unmap(ctrl_info->pci_dev, request.sg_descriptors, 1,
6917a9cc 6361 DMA_BIDIRECTIONAL);
6c223761
KB		 6362
6363 memset(&iocommand.error_info, 0, sizeof(iocommand.error_info));
6364
6365 if (rc == 0) {
6366 pqi_error_info_to_ciss(&pqi_error_info, &ciss_error_info);
6367 iocommand.error_info.ScsiStatus = ciss_error_info.scsi_status;
6368 iocommand.error_info.CommandStatus =
6369 ciss_error_info.command_status;
6370 sense_data_length = ciss_error_info.sense_data_length;
6371 if (sense_data_length) {
6372 if (sense_data_length >
6373 sizeof(iocommand.error_info.SenseInfo))
6374 sense_data_length =
6375 sizeof(iocommand.error_info.SenseInfo);
6376 memcpy(iocommand.error_info.SenseInfo,
6377 pqi_error_info.data, sense_data_length);
6378 iocommand.error_info.SenseLen = sense_data_length;
6379 }
6380 }
6381
6382 if (copy_to_user(arg, &iocommand, sizeof(iocommand))) {
6383 rc = -EFAULT;
6384 goto out;
6385 }
6386
6387 if (rc == 0 && iocommand.buf_size > 0 &&
6388 (iocommand.Request.Type.Direction & XFER_READ)) {
6389 if (copy_to_user(iocommand.buf, kernel_buffer,
6390 iocommand.buf_size)) {
6391 rc = -EFAULT;
6392 }
6393 }
6394
6395out:
6396 kfree(kernel_buffer);
6397
6398 return rc;
6399}
6400
6f4e626f
NC		 6401static int pqi_ioctl(struct scsi_device *sdev, unsigned int cmd,
6402 void __user *arg)
6c223761
KB		 6403{
6404 int rc;
6405 struct pqi_ctrl_info *ctrl_info;
6406
6407 ctrl_info = shost_to_hba(sdev->host);
6408
6409 switch (cmd) {
6410 case CCISS_DEREGDISK:
6411 case CCISS_REGNEWDISK:
6412 case CCISS_REGNEWD:
6413 rc = pqi_scan_scsi_devices(ctrl_info);
6414 break;
6415 case CCISS_GETPCIINFO:
6416 rc = pqi_getpciinfo_ioctl(ctrl_info, arg);
6417 break;
6418 case CCISS_GETDRIVVER:
6419 rc = pqi_getdrivver_ioctl(arg);
6420 break;
6421 case CCISS_PASSTHRU:
6422 rc = pqi_passthru_ioctl(ctrl_info, arg);
6423 break;
6424 default:
6425 rc = -EINVAL;
6426 break;
6427 }
6428
6429 return rc;
6430}
6431
6d90615f 6432static ssize_t pqi_firmware_version_show(struct device *dev,
6c223761
KB		 6433 struct device_attribute *attr, char *buffer)
6434{
6c223761
KB		 6435 struct Scsi_Host *shost;
6436 struct pqi_ctrl_info *ctrl_info;
6437
6438 shost = class_to_shost(dev);
6439 ctrl_info = shost_to_hba(shost);
6440
a4256252 6441 return scnprintf(buffer, PAGE_SIZE, "%s\n", ctrl_info->firmware_version);
6d90615f
MB		 6442}
6443
6444static ssize_t pqi_driver_version_show(struct device *dev,
6445 struct device_attribute *attr, char *buffer)
6446{
a4256252 6447 return scnprintf(buffer, PAGE_SIZE, "%s\n", DRIVER_VERSION BUILD_TIMESTAMP);
6d90615f 6448}
6c223761 6449
6d90615f
MB		 6450static ssize_t pqi_serial_number_show(struct device *dev,
6451 struct device_attribute *attr, char *buffer)
6452{
6453 struct Scsi_Host *shost;
6454 struct pqi_ctrl_info *ctrl_info;
6455
6456 shost = class_to_shost(dev);
6457 ctrl_info = shost_to_hba(shost);
6458
a4256252 6459 return scnprintf(buffer, PAGE_SIZE, "%s\n", ctrl_info->serial_number);
6d90615f
MB		 6460}
6461
6462static ssize_t pqi_model_show(struct device *dev,
6463 struct device_attribute *attr, char *buffer)
6464{
6465 struct Scsi_Host *shost;
6466 struct pqi_ctrl_info *ctrl_info;
6467
6468 shost = class_to_shost(dev);
6469 ctrl_info = shost_to_hba(shost);
6470
a4256252 6471 return scnprintf(buffer, PAGE_SIZE, "%s\n", ctrl_info->model);
6d90615f
MB		 6472}
6473
6474static ssize_t pqi_vendor_show(struct device *dev,
6475 struct device_attribute *attr, char *buffer)
6476{
6477 struct Scsi_Host *shost;
6478 struct pqi_ctrl_info *ctrl_info;
6479
6480 shost = class_to_shost(dev);
6481 ctrl_info = shost_to_hba(shost);
6482
a4256252 6483 return scnprintf(buffer, PAGE_SIZE, "%s\n", ctrl_info->vendor);
6c223761
KB		 6484}
6485
6486static ssize_t pqi_host_rescan_store(struct device *dev,
6487 struct device_attribute *attr, const char *buffer, size_t count)
6488{
6489 struct Scsi_Host *shost = class_to_shost(dev);
6490
6491 pqi_scan_start(shost);
6492
6493 return count;
6494}
6495
3c50976f
KB		 6496static ssize_t pqi_lockup_action_show(struct device *dev,
6497 struct device_attribute *attr, char *buffer)
6498{
6499 int count = 0;
6500 unsigned int i;
6501
6502 for (i = 0; i < ARRAY_SIZE(pqi_lockup_actions); i++) {
6503 if (pqi_lockup_actions[i].action == pqi_lockup_action)
181aea89 6504 count += scnprintf(buffer + count, PAGE_SIZE - count,
3c50976f
KB		 6505 "[%s] ", pqi_lockup_actions[i].name);
6506 else
181aea89 6507 count += scnprintf(buffer + count, PAGE_SIZE - count,
3c50976f
KB		 6508 "%s ", pqi_lockup_actions[i].name);
6509 }
6510
181aea89 6511 count += scnprintf(buffer + count, PAGE_SIZE - count, "\n");
3c50976f
KB		 6512
6513 return count;
6514}
6515
6516static ssize_t pqi_lockup_action_store(struct device *dev,
6517 struct device_attribute *attr, const char *buffer, size_t count)
6518{
6519 unsigned int i;
6520 char *action_name;
6521 char action_name_buffer[32];
6522
6523 strlcpy(action_name_buffer, buffer, sizeof(action_name_buffer));
6524 action_name = strstrip(action_name_buffer);
6525
6526 for (i = 0; i < ARRAY_SIZE(pqi_lockup_actions); i++) {
6527 if (strcmp(action_name, pqi_lockup_actions[i].name) == 0) {
6528 pqi_lockup_action = pqi_lockup_actions[i].action;
6529 return count;
6530 }
6531 }
6532
6533 return -EINVAL;
6534}
6535
5be746d7
DB		 6536static ssize_t pqi_host_enable_stream_detection_show(struct device *dev,
6537 struct device_attribute *attr, char *buffer)
6538{
6539 struct Scsi_Host *shost = class_to_shost(dev);
6540 struct pqi_ctrl_info *ctrl_info = shost_to_hba(shost);
6541
6542 return scnprintf(buffer, 10, "%x\n",
6543 ctrl_info->enable_stream_detection);
6544}
6545
6546static ssize_t pqi_host_enable_stream_detection_store(struct device *dev,
6547 struct device_attribute *attr, const char *buffer, size_t count)
6548{
6549 struct Scsi_Host *shost = class_to_shost(dev);
6550 struct pqi_ctrl_info *ctrl_info = shost_to_hba(shost);
6551 u8 set_stream_detection = 0;
6552
6553 if (kstrtou8(buffer, 0, &set_stream_detection))
6554 return -EINVAL;
6555
6556 if (set_stream_detection > 0)
6557 set_stream_detection = 1;
6558
6559 ctrl_info->enable_stream_detection = set_stream_detection;
6560
6561 return count;
6562}
6563
6702d2c4
DB		 6564static ssize_t pqi_host_enable_r5_writes_show(struct device *dev,
6565 struct device_attribute *attr, char *buffer)
6566{
6567 struct Scsi_Host *shost = class_to_shost(dev);
6568 struct pqi_ctrl_info *ctrl_info = shost_to_hba(shost);
6569
6570 return scnprintf(buffer, 10, "%x\n", ctrl_info->enable_r5_writes);
6571}
6572
6573static ssize_t pqi_host_enable_r5_writes_store(struct device *dev,
6574 struct device_attribute *attr, const char *buffer, size_t count)
6575{
6576 struct Scsi_Host *shost = class_to_shost(dev);
6577 struct pqi_ctrl_info *ctrl_info = shost_to_hba(shost);
6578 u8 set_r5_writes = 0;
6579
6580 if (kstrtou8(buffer, 0, &set_r5_writes))
6581 return -EINVAL;
6582
6583 if (set_r5_writes > 0)
6584 set_r5_writes = 1;
6585
6586 ctrl_info->enable_r5_writes = set_r5_writes;
6587
6588 return count;
6589}
6590
6591static ssize_t pqi_host_enable_r6_writes_show(struct device *dev,
6592 struct device_attribute *attr, char *buffer)
6593{
6594 struct Scsi_Host *shost = class_to_shost(dev);
6595 struct pqi_ctrl_info *ctrl_info = shost_to_hba(shost);
6596
6597 return scnprintf(buffer, 10, "%x\n", ctrl_info->enable_r6_writes);
6598}
6599
6600static ssize_t pqi_host_enable_r6_writes_store(struct device *dev,
6601 struct device_attribute *attr, const char *buffer, size_t count)
6602{
6603 struct Scsi_Host *shost = class_to_shost(dev);
6604 struct pqi_ctrl_info *ctrl_info = shost_to_hba(shost);
6605 u8 set_r6_writes = 0;
6606
6607 if (kstrtou8(buffer, 0, &set_r6_writes))
6608 return -EINVAL;
6609
6610 if (set_r6_writes > 0)
6611 set_r6_writes = 1;
6612
6613 ctrl_info->enable_r6_writes = set_r6_writes;
6614
6615 return count;
6616}
6617
6d90615f
MB		 6618static DEVICE_ATTR(driver_version, 0444, pqi_driver_version_show, NULL);
6619static DEVICE_ATTR(firmware_version, 0444, pqi_firmware_version_show, NULL);
6620static DEVICE_ATTR(model, 0444, pqi_model_show, NULL);
6621static DEVICE_ATTR(serial_number, 0444, pqi_serial_number_show, NULL);
6622static DEVICE_ATTR(vendor, 0444, pqi_vendor_show, NULL);
cbe0c7b1 6623static DEVICE_ATTR(rescan, 0200, NULL, pqi_host_rescan_store);
583891c9
KB		 6624static DEVICE_ATTR(lockup_action, 0644, pqi_lockup_action_show,
6625 pqi_lockup_action_store);
5be746d7
DB		 6626static DEVICE_ATTR(enable_stream_detection, 0644,
6627 pqi_host_enable_stream_detection_show,
6628 pqi_host_enable_stream_detection_store);
6702d2c4
DB		 6629static DEVICE_ATTR(enable_r5_writes, 0644,
6630 pqi_host_enable_r5_writes_show, pqi_host_enable_r5_writes_store);
6631static DEVICE_ATTR(enable_r6_writes, 0644,
6632 pqi_host_enable_r6_writes_show, pqi_host_enable_r6_writes_store);
6c223761
KB		 6633
6634static struct device_attribute *pqi_shost_attrs[] = {
6d90615f
MB		 6635 &dev_attr_driver_version,
6636 &dev_attr_firmware_version,
6637 &dev_attr_model,
6638 &dev_attr_serial_number,
6639 &dev_attr_vendor,
6c223761 6640 &dev_attr_rescan,
3c50976f 6641 &dev_attr_lockup_action,
5be746d7 6642 &dev_attr_enable_stream_detection,
6702d2c4
DB		 6643 &dev_attr_enable_r5_writes,
6644 &dev_attr_enable_r6_writes,
6c223761
KB		 6645 NULL
6646};
6647
cd128244
DC		 6648static ssize_t pqi_unique_id_show(struct device *dev,
6649 struct device_attribute *attr, char *buffer)
6650{
6651 struct pqi_ctrl_info *ctrl_info;
6652 struct scsi_device *sdev;
6653 struct pqi_scsi_dev *device;
6654 unsigned long flags;
5b083b30 6655 u8 unique_id[16];
cd128244
DC		 6656
6657 sdev = to_scsi_device(dev);
6658 ctrl_info = shost_to_hba(sdev->host);
6659
6660 spin_lock_irqsave(&ctrl_info->scsi_device_list_lock, flags);
6661
6662 device = sdev->hostdata;
6663 if (!device) {
8b664fef 6664 spin_unlock_irqrestore(&ctrl_info->scsi_device_list_lock, flags);
cd128244
DC		 6665 return -ENODEV;
6666 }
5b083b30
KB		 6667
6668 if (device->is_physical_device) {
6669 memset(unique_id, 0, 8);
6670 memcpy(unique_id + 8, &device->wwid, sizeof(device->wwid));
6671 } else {
6672 memcpy(unique_id, device->volume_id, sizeof(device->volume_id));
6673 }
cd128244
DC		 6674
6675 spin_unlock_irqrestore(&ctrl_info->scsi_device_list_lock, flags);
6676
a4256252 6677 return scnprintf(buffer, PAGE_SIZE,
583891c9
KB		 6678 "%02X%02X%02X%02X%02X%02X%02X%02X"
6679 "%02X%02X%02X%02X%02X%02X%02X%02X\n",
5b083b30
KB		 6680 unique_id[0], unique_id[1], unique_id[2], unique_id[3],
6681 unique_id[4], unique_id[5], unique_id[6], unique_id[7],
6682 unique_id[8], unique_id[9], unique_id[10], unique_id[11],
6683 unique_id[12], unique_id[13], unique_id[14], unique_id[15]);
cd128244
DC		 6684}
6685
6686static ssize_t pqi_lunid_show(struct device *dev,
6687 struct device_attribute *attr, char *buffer)
6688{
6689 struct pqi_ctrl_info *ctrl_info;
6690 struct scsi_device *sdev;
6691 struct pqi_scsi_dev *device;
6692 unsigned long flags;
6693 u8 lunid[8];
6694
6695 sdev = to_scsi_device(dev);
6696 ctrl_info = shost_to_hba(sdev->host);
6697
6698 spin_lock_irqsave(&ctrl_info->scsi_device_list_lock, flags);
6699
6700 device = sdev->hostdata;
6701 if (!device) {
8b664fef 6702 spin_unlock_irqrestore(&ctrl_info->scsi_device_list_lock, flags);
cd128244
DC		 6703 return -ENODEV;
6704 }
694c5d5b 6705
cd128244
DC		 6706 memcpy(lunid, device->scsi3addr, sizeof(lunid));
6707
6708 spin_unlock_irqrestore(&ctrl_info->scsi_device_list_lock, flags);
6709
a4256252 6710 return scnprintf(buffer, PAGE_SIZE, "0x%8phN\n", lunid);
cd128244
DC		 6711}
6712
694c5d5b
KB		 6713#define MAX_PATHS 8
6714
cd128244
DC		 6715static ssize_t pqi_path_info_show(struct device *dev,
6716 struct device_attribute *attr, char *buf)
6717{
6718 struct pqi_ctrl_info *ctrl_info;
6719 struct scsi_device *sdev;
6720 struct pqi_scsi_dev *device;
6721 unsigned long flags;
6722 int i;
6723 int output_len = 0;
6724 u8 box;
6725 u8 bay;
694c5d5b 6726 u8 path_map_index;
cd128244 6727 char *active;
694c5d5b 6728 u8 phys_connector[2];
cd128244
DC		 6729
6730 sdev = to_scsi_device(dev);
6731 ctrl_info = shost_to_hba(sdev->host);
6732
6733 spin_lock_irqsave(&ctrl_info->scsi_device_list_lock, flags);
6734
6735 device = sdev->hostdata;
6736 if (!device) {
8b664fef 6737 spin_unlock_irqrestore(&ctrl_info->scsi_device_list_lock, flags);
cd128244
DC		 6738 return -ENODEV;
6739 }
6740
6741 bay = device->bay;
6742 for (i = 0; i < MAX_PATHS; i++) {
694c5d5b 6743 path_map_index = 1 << i;
cd128244
DC		 6744 if (i == device->active_path_index)
6745 active = "Active";
6746 else if (device->path_map & path_map_index)
6747 active = "Inactive";
6748 else
6749 continue;
6750
6751 output_len += scnprintf(buf + output_len,
6752 PAGE_SIZE - output_len,
6753 "[%d:%d:%d:%d] %20.20s ",
6754 ctrl_info->scsi_host->host_no,
6755 device->bus, device->target,
6756 device->lun,
6757 scsi_device_type(device->devtype));
6758
6759 if (device->devtype == TYPE_RAID ||
6760 pqi_is_logical_device(device))
6761 goto end_buffer;
6762
6763 memcpy(&phys_connector, &device->phys_connector[i],
6764 sizeof(phys_connector));
6765 if (phys_connector[0] < '0')
6766 phys_connector[0] = '0';
6767 if (phys_connector[1] < '0')
6768 phys_connector[1] = '0';
6769
6770 output_len += scnprintf(buf + output_len,
6771 PAGE_SIZE - output_len,
6772 "PORT: %.2s ", phys_connector);
6773
6774 box = device->box[i];
6775 if (box != 0 && box != 0xFF)
6776 output_len += scnprintf(buf + output_len,
6777 PAGE_SIZE - output_len,
6778 "BOX: %hhu ", box);
6779
6780 if ((device->devtype == TYPE_DISK ||
6781 device->devtype == TYPE_ZBC) &&
6782 pqi_expose_device(device))
6783 output_len += scnprintf(buf + output_len,
6784 PAGE_SIZE - output_len,
6785 "BAY: %hhu ", bay);
6786
6787end_buffer:
6788 output_len += scnprintf(buf + output_len,
6789 PAGE_SIZE - output_len,
6790 "%s\n", active);
6791 }
6792
6793 spin_unlock_irqrestore(&ctrl_info->scsi_device_list_lock, flags);
694c5d5b 6794
cd128244
DC		 6795 return output_len;
6796}
6797
6c223761
KB		 6798static ssize_t pqi_sas_address_show(struct device *dev,
6799 struct device_attribute *attr, char *buffer)
6800{
6801 struct pqi_ctrl_info *ctrl_info;
6802 struct scsi_device *sdev;
6803 struct pqi_scsi_dev *device;
6804 unsigned long flags;
6805 u64 sas_address;
6806
6807 sdev = to_scsi_device(dev);
6808 ctrl_info = shost_to_hba(sdev->host);
6809
6810 spin_lock_irqsave(&ctrl_info->scsi_device_list_lock, flags);
6811
6812 device = sdev->hostdata;
8b664fef
KB		 6813 if (!device || !pqi_is_device_with_sas_address(device)) {
6814 spin_unlock_irqrestore(&ctrl_info->scsi_device_list_lock, flags);
6c223761
KB		 6815 return -ENODEV;
6816 }
694c5d5b 6817
6c223761
KB		 6818 sas_address = device->sas_address;
6819
6820 spin_unlock_irqrestore(&ctrl_info->scsi_device_list_lock, flags);
6821
a4256252 6822 return scnprintf(buffer, PAGE_SIZE, "0x%016llx\n", sas_address);
6c223761
KB		 6823}
6824
6825static ssize_t pqi_ssd_smart_path_enabled_show(struct device *dev,
6826 struct device_attribute *attr, char *buffer)
6827{
6828 struct pqi_ctrl_info *ctrl_info;
6829 struct scsi_device *sdev;
6830 struct pqi_scsi_dev *device;
6831 unsigned long flags;
6832
6833 sdev = to_scsi_device(dev);
6834 ctrl_info = shost_to_hba(sdev->host);
6835
6836 spin_lock_irqsave(&ctrl_info->scsi_device_list_lock, flags);
6837
6838 device = sdev->hostdata;
8b664fef
KB		 6839 if (!device) {
6840 spin_unlock_irqrestore(&ctrl_info->scsi_device_list_lock, flags);
6841 return -ENODEV;
6842 }
6843
588a63fe 6844 buffer[0] = device->raid_bypass_enabled ? '1' : '0';
6c223761
KB		 6845 buffer[1] = '\n';
6846 buffer[2] = '\0';
6847
6848 spin_unlock_irqrestore(&ctrl_info->scsi_device_list_lock, flags);
6849
6850 return 2;
6851}
6852
a9f93392
KB		 6853static ssize_t pqi_raid_level_show(struct device *dev,
6854 struct device_attribute *attr, char *buffer)
6855{
6856 struct pqi_ctrl_info *ctrl_info;
6857 struct scsi_device *sdev;
6858 struct pqi_scsi_dev *device;
6859 unsigned long flags;
6860 char *raid_level;
6861
6862 sdev = to_scsi_device(dev);
6863 ctrl_info = shost_to_hba(sdev->host);
6864
6865 spin_lock_irqsave(&ctrl_info->scsi_device_list_lock, flags);
6866
6867 device = sdev->hostdata;
8b664fef
KB		 6868 if (!device) {
6869 spin_unlock_irqrestore(&ctrl_info->scsi_device_list_lock, flags);
6870 return -ENODEV;
6871 }
a9f93392
KB		 6872
6873 if (pqi_is_logical_device(device))
6874 raid_level = pqi_raid_level_to_string(device->raid_level);
6875 else
6876 raid_level = "N/A";
6877
6878 spin_unlock_irqrestore(&ctrl_info->scsi_device_list_lock, flags);
6879
a4256252 6880 return scnprintf(buffer, PAGE_SIZE, "%s\n", raid_level);
a9f93392
KB		 6881}
6882
8b664fef
KB		 6883static ssize_t pqi_raid_bypass_cnt_show(struct device *dev,
6884 struct device_attribute *attr, char *buffer)
6885{
6886 struct pqi_ctrl_info *ctrl_info;
6887 struct scsi_device *sdev;
6888 struct pqi_scsi_dev *device;
6889 unsigned long flags;
6890 int raid_bypass_cnt;
6891
6892 sdev = to_scsi_device(dev);
6893 ctrl_info = shost_to_hba(sdev->host);
6894
6895 spin_lock_irqsave(&ctrl_info->scsi_device_list_lock, flags);
6896
6897 device = sdev->hostdata;
6898 if (!device) {
6899 spin_unlock_irqrestore(&ctrl_info->scsi_device_list_lock, flags);
6900 return -ENODEV;
6901 }
6902
6903 raid_bypass_cnt = atomic_read(&device->raid_bypass_cnt);
6904
6905 spin_unlock_irqrestore(&ctrl_info->scsi_device_list_lock, flags);
6906
a4256252 6907 return scnprintf(buffer, PAGE_SIZE, "0x%x\n", raid_bypass_cnt);
8b664fef
KB		 6908}
6909
cd128244
DC		 6910static DEVICE_ATTR(lunid, 0444, pqi_lunid_show, NULL);
6911static DEVICE_ATTR(unique_id, 0444, pqi_unique_id_show, NULL);
6912static DEVICE_ATTR(path_info, 0444, pqi_path_info_show, NULL);
cbe0c7b1 6913static DEVICE_ATTR(sas_address, 0444, pqi_sas_address_show, NULL);
8b664fef 6914static DEVICE_ATTR(ssd_smart_path_enabled, 0444, pqi_ssd_smart_path_enabled_show, NULL);
a9f93392 6915static DEVICE_ATTR(raid_level, 0444, pqi_raid_level_show, NULL);
8b664fef 6916static DEVICE_ATTR(raid_bypass_cnt, 0444, pqi_raid_bypass_cnt_show, NULL);
6c223761
KB		 6917
6918static struct device_attribute *pqi_sdev_attrs[] = {
cd128244
DC		 6919 &dev_attr_lunid,
6920 &dev_attr_unique_id,
6921 &dev_attr_path_info,
6c223761
KB		 6922 &dev_attr_sas_address,
6923 &dev_attr_ssd_smart_path_enabled,
a9f93392 6924 &dev_attr_raid_level,
8b664fef 6925 &dev_attr_raid_bypass_cnt,
6c223761
KB		 6926 NULL
6927};
6928
6929static struct scsi_host_template pqi_driver_template = {
6930 .module = THIS_MODULE,
6931 .name = DRIVER_NAME_SHORT,
6932 .proc_name = DRIVER_NAME_SHORT,
6933 .queuecommand = pqi_scsi_queue_command,
6934 .scan_start = pqi_scan_start,
6935 .scan_finished = pqi_scan_finished,
6936 .this_id = -1,
6c223761
KB		 6937 .eh_device_reset_handler = pqi_eh_device_reset_handler,
6938 .ioctl = pqi_ioctl,
6939 .slave_alloc = pqi_slave_alloc,
ce143793 6940 .slave_configure = pqi_slave_configure,
4d15ad38 6941 .slave_destroy = pqi_slave_destroy,
52198226 6942 .map_queues = pqi_map_queues,
6c223761
KB		 6943 .sdev_attrs = pqi_sdev_attrs,
6944 .shost_attrs = pqi_shost_attrs,
6945};
6946
6947static int pqi_register_scsi(struct pqi_ctrl_info *ctrl_info)
6948{
6949 int rc;
6950 struct Scsi_Host *shost;
6951
6952 shost = scsi_host_alloc(&pqi_driver_template, sizeof(ctrl_info));
6953 if (!shost) {
583891c9 6954 dev_err(&ctrl_info->pci_dev->dev, "scsi_host_alloc failed\n");
6c223761
KB		 6955 return -ENOMEM;
6956 }
6957
6958 shost->io_port = 0;
6959 shost->n_io_port = 0;
6960 shost->this_id = -1;
6961 shost->max_channel = PQI_MAX_BUS;
6962 shost->max_cmd_len = MAX_COMMAND_SIZE;
6963 shost->max_lun = ~0;
6964 shost->max_id = ~0;
6965 shost->max_sectors = ctrl_info->max_sectors;
6966 shost->can_queue = ctrl_info->scsi_ml_can_queue;
6967 shost->cmd_per_lun = shost->can_queue;
6968 shost->sg_tablesize = ctrl_info->sg_tablesize;
6969 shost->transportt = pqi_sas_transport_template;
52198226 6970 shost->irq = pci_irq_vector(ctrl_info->pci_dev, 0);
6c223761
KB		 6971 shost->unique_id = shost->irq;
6972 shost->nr_hw_queues = ctrl_info->num_queue_groups;
c6d3ee20 6973 shost->host_tagset = 1;
6c223761
KB		 6974 shost->hostdata[0] = (unsigned long)ctrl_info;
6975
6976 rc = scsi_add_host(shost, &ctrl_info->pci_dev->dev);
6977 if (rc) {
583891c9 6978 dev_err(&ctrl_info->pci_dev->dev, "scsi_add_host failed\n");
6c223761
KB		 6979 goto free_host;
6980 }
6981
6982 rc = pqi_add_sas_host(shost, ctrl_info);
6983 if (rc) {
583891c9 6984 dev_err(&ctrl_info->pci_dev->dev, "add SAS host failed\n");
6c223761
KB		 6985 goto remove_host;
6986 }
6987
6988 ctrl_info->scsi_host = shost;
6989
6990 return 0;
6991
6992remove_host:
6993 scsi_remove_host(shost);
6994free_host:
6995 scsi_host_put(shost);
6996
6997 return rc;
6998}
6999
7000static void pqi_unregister_scsi(struct pqi_ctrl_info *ctrl_info)
7001{
7002 struct Scsi_Host *shost;
7003
7004 pqi_delete_sas_host(ctrl_info);
7005
7006 shost = ctrl_info->scsi_host;
7007 if (!shost)
7008 return;
7009
7010 scsi_remove_host(shost);
7011 scsi_host_put(shost);
7012}
7013
336b6819
KB		 7014static int pqi_wait_for_pqi_reset_completion(struct pqi_ctrl_info *ctrl_info)
7015{
7016 int rc = 0;
7017 struct pqi_device_registers __iomem *pqi_registers;
7018 unsigned long timeout;
7019 unsigned int timeout_msecs;
7020 union pqi_reset_register reset_reg;
6c223761 7021
336b6819
KB		 7022 pqi_registers = ctrl_info->pqi_registers;
7023 timeout_msecs = readw(&pqi_registers->max_reset_timeout) * 100;
7024 timeout = msecs_to_jiffies(timeout_msecs) + jiffies;
7025
7026 while (1) {
7027 msleep(PQI_RESET_POLL_INTERVAL_MSECS);
7028 reset_reg.all_bits = readl(&pqi_registers->device_reset);
7029 if (reset_reg.bits.reset_action == PQI_RESET_ACTION_COMPLETED)
7030 break;
7031 pqi_check_ctrl_health(ctrl_info);
7032 if (pqi_ctrl_offline(ctrl_info)) {
7033 rc = -ENXIO;
7034 break;
7035 }
7036 if (time_after(jiffies, timeout)) {
7037 rc = -ETIMEDOUT;
7038 break;
7039 }
7040 }
7041
7042 return rc;
7043}
6c223761
KB		 7044
7045static int pqi_reset(struct pqi_ctrl_info *ctrl_info)
7046{
7047 int rc;
336b6819
KB		 7048 union pqi_reset_register reset_reg;
7049
7050 if (ctrl_info->pqi_reset_quiesce_supported) {
7051 rc = sis_pqi_reset_quiesce(ctrl_info);
7052 if (rc) {
7053 dev_err(&ctrl_info->pci_dev->dev,
583891c9 7054 "PQI reset failed during quiesce with error %d\n", rc);
336b6819
KB		 7055 return rc;
7056 }
7057 }
6c223761 7058
336b6819
KB		 7059 reset_reg.all_bits = 0;
7060 reset_reg.bits.reset_type = PQI_RESET_TYPE_HARD_RESET;
7061 reset_reg.bits.reset_action = PQI_RESET_ACTION_RESET;
6c223761 7062
336b6819 7063 writel(reset_reg.all_bits, &ctrl_info->pqi_registers->device_reset);
6c223761 7064
336b6819 7065 rc = pqi_wait_for_pqi_reset_completion(ctrl_info);
6c223761
KB		 7066 if (rc)
7067 dev_err(&ctrl_info->pci_dev->dev,
336b6819 7068 "PQI reset failed with error %d\n", rc);
6c223761
KB		 7069
7070 return rc;
7071}
7072
6d90615f
MB		 7073static int pqi_get_ctrl_serial_number(struct pqi_ctrl_info *ctrl_info)
7074{
7075 int rc;
7076 struct bmic_sense_subsystem_info *sense_info;
7077
7078 sense_info = kzalloc(sizeof(*sense_info), GFP_KERNEL);
7079 if (!sense_info)
7080 return -ENOMEM;
7081
7082 rc = pqi_sense_subsystem_info(ctrl_info, sense_info);
7083 if (rc)
7084 goto out;
7085
7086 memcpy(ctrl_info->serial_number, sense_info->ctrl_serial_number,
7087 sizeof(sense_info->ctrl_serial_number));
7088 ctrl_info->serial_number[sizeof(sense_info->ctrl_serial_number)] = '\0';
7089
7090out:
7091 kfree(sense_info);
7092
7093 return rc;
7094}
7095
7096static int pqi_get_ctrl_product_details(struct pqi_ctrl_info *ctrl_info)
6c223761
KB		 7097{
7098 int rc;
7099 struct bmic_identify_controller *identify;
7100
7101 identify = kmalloc(sizeof(*identify), GFP_KERNEL);
7102 if (!identify)
7103 return -ENOMEM;
7104
7105 rc = pqi_identify_controller(ctrl_info, identify);
7106 if (rc)
7107 goto out;
7108
598bef8d
KB		 7109 if (get_unaligned_le32(&identify->extra_controller_flags) &
7110 BMIC_IDENTIFY_EXTRA_FLAGS_LONG_FW_VERSION_SUPPORTED) {
7111 memcpy(ctrl_info->firmware_version,
7112 identify->firmware_version_long,
7113 sizeof(identify->firmware_version_long));
7114 } else {
7115 memcpy(ctrl_info->firmware_version,
7116 identify->firmware_version_short,
7117 sizeof(identify->firmware_version_short));
7118 ctrl_info->firmware_version
7119 [sizeof(identify->firmware_version_short)] = '\0';
7120 snprintf(ctrl_info->firmware_version +
7121 strlen(ctrl_info->firmware_version),
7122 sizeof(ctrl_info->firmware_version) -
7123 sizeof(identify->firmware_version_short),
7124 "-%u",
7125 get_unaligned_le16(&identify->firmware_build_number));
7126 }
6c223761 7127
6d90615f
MB		 7128 memcpy(ctrl_info->model, identify->product_id,
7129 sizeof(identify->product_id));
7130 ctrl_info->model[sizeof(identify->product_id)] = '\0';
7131
7132 memcpy(ctrl_info->vendor, identify->vendor_id,
7133 sizeof(identify->vendor_id));
7134 ctrl_info->vendor[sizeof(identify->vendor_id)] = '\0';
7135
6c223761
KB		 7136out:
7137 kfree(identify);
7138
7139 return rc;
7140}
7141
b212c251
KB		 7142struct pqi_config_table_section_info {
7143 struct pqi_ctrl_info *ctrl_info;
7144 void *section;
7145 u32 section_offset;
7146 void __iomem *section_iomem_addr;
7147};
7148
7149static inline bool pqi_is_firmware_feature_supported(
7150 struct pqi_config_table_firmware_features *firmware_features,
7151 unsigned int bit_position)
98f87667 7152{
b212c251 7153 unsigned int byte_index;
98f87667 7154
b212c251 7155 byte_index = bit_position / BITS_PER_BYTE;
98f87667 7156
b212c251
KB		 7157 if (byte_index >= le16_to_cpu(firmware_features->num_elements))
7158 return false;
98f87667 7159
b212c251
KB		 7160 return firmware_features->features_supported[byte_index] &
7161 (1 << (bit_position % BITS_PER_BYTE)) ? true : false;
7162}
7163
7164static inline bool pqi_is_firmware_feature_enabled(
7165 struct pqi_config_table_firmware_features *firmware_features,
7166 void __iomem *firmware_features_iomem_addr,
7167 unsigned int bit_position)
7168{
7169 unsigned int byte_index;
7170 u8 __iomem *features_enabled_iomem_addr;
7171
7172 byte_index = (bit_position / BITS_PER_BYTE) +
7173 (le16_to_cpu(firmware_features->num_elements) * 2);
7174
7175 features_enabled_iomem_addr = firmware_features_iomem_addr +
7176 offsetof(struct pqi_config_table_firmware_features,
7177 features_supported) + byte_index;
7178
7179 return *((__force u8 *)features_enabled_iomem_addr) &
7180 (1 << (bit_position % BITS_PER_BYTE)) ? true : false;
7181}
7182
7183static inline void pqi_request_firmware_feature(
7184 struct pqi_config_table_firmware_features *firmware_features,
7185 unsigned int bit_position)
7186{
7187 unsigned int byte_index;
7188
7189 byte_index = (bit_position / BITS_PER_BYTE) +
7190 le16_to_cpu(firmware_features->num_elements);
7191
7192 firmware_features->features_supported[byte_index] |=
7193 (1 << (bit_position % BITS_PER_BYTE));
7194}
7195
7196static int pqi_config_table_update(struct pqi_ctrl_info *ctrl_info,
7197 u16 first_section, u16 last_section)
7198{
7199 struct pqi_vendor_general_request request;
7200
7201 memset(&request, 0, sizeof(request));
7202
7203 request.header.iu_type = PQI_REQUEST_IU_VENDOR_GENERAL;
7204 put_unaligned_le16(sizeof(request) - PQI_REQUEST_HEADER_LENGTH,
7205 &request.header.iu_length);
7206 put_unaligned_le16(PQI_VENDOR_GENERAL_CONFIG_TABLE_UPDATE,
7207 &request.function_code);
7208 put_unaligned_le16(first_section,
7209 &request.data.config_table_update.first_section);
7210 put_unaligned_le16(last_section,
7211 &request.data.config_table_update.last_section);
7212
ae0c189d 7213 return pqi_submit_raid_request_synchronous(ctrl_info, &request.header, 0, NULL);
b212c251
KB		 7214}
7215
7216static int pqi_enable_firmware_features(struct pqi_ctrl_info *ctrl_info,
7217 struct pqi_config_table_firmware_features *firmware_features,
7218 void __iomem *firmware_features_iomem_addr)
7219{
7220 void *features_requested;
7221 void __iomem *features_requested_iomem_addr;
f6cc2a77 7222 void __iomem *host_max_known_feature_iomem_addr;
b212c251
KB		 7223
7224 features_requested = firmware_features->features_supported +
7225 le16_to_cpu(firmware_features->num_elements);
7226
7227 features_requested_iomem_addr = firmware_features_iomem_addr +
7228 (features_requested - (void *)firmware_features);
7229
7230 memcpy_toio(features_requested_iomem_addr, features_requested,
7231 le16_to_cpu(firmware_features->num_elements));
7232
f6cc2a77
KB		 7233 if (pqi_is_firmware_feature_supported(firmware_features,
7234 PQI_FIRMWARE_FEATURE_MAX_KNOWN_FEATURE)) {
7235 host_max_known_feature_iomem_addr =
7236 features_requested_iomem_addr +
7237 (le16_to_cpu(firmware_features->num_elements) * 2) +
7238 sizeof(__le16);
7239 writew(PQI_FIRMWARE_FEATURE_MAXIMUM,
7240 host_max_known_feature_iomem_addr);
7241 }
7242
b212c251
KB		 7243 return pqi_config_table_update(ctrl_info,
7244 PQI_CONFIG_TABLE_SECTION_FIRMWARE_FEATURES,
7245 PQI_CONFIG_TABLE_SECTION_FIRMWARE_FEATURES);
7246}
7247
7248struct pqi_firmware_feature {
7249 char *feature_name;
7250 unsigned int feature_bit;
7251 bool supported;
7252 bool enabled;
7253 void (*feature_status)(struct pqi_ctrl_info *ctrl_info,
7254 struct pqi_firmware_feature *firmware_feature);
7255};
7256
7257static void pqi_firmware_feature_status(struct pqi_ctrl_info *ctrl_info,
7258 struct pqi_firmware_feature *firmware_feature)
7259{
7260 if (!firmware_feature->supported) {
7261 dev_info(&ctrl_info->pci_dev->dev, "%s not supported by controller\n",
7262 firmware_feature->feature_name);
7263 return;
7264 }
7265
7266 if (firmware_feature->enabled) {
7267 dev_info(&ctrl_info->pci_dev->dev,
7268 "%s enabled\n", firmware_feature->feature_name);
7269 return;
7270 }
7271
7272 dev_err(&ctrl_info->pci_dev->dev, "failed to enable %s\n",
7273 firmware_feature->feature_name);
7274}
7275
21432010 7276static void pqi_ctrl_update_feature_flags(struct pqi_ctrl_info *ctrl_info,
7277 struct pqi_firmware_feature *firmware_feature)
7278{
7279 switch (firmware_feature->feature_bit) {
f6cc2a77
KB		 7280 case PQI_FIRMWARE_FEATURE_RAID_1_WRITE_BYPASS:
7281 ctrl_info->enable_r1_writes = firmware_feature->enabled;
7282 break;
7283 case PQI_FIRMWARE_FEATURE_RAID_5_WRITE_BYPASS:
7284 ctrl_info->enable_r5_writes = firmware_feature->enabled;
7285 break;
7286 case PQI_FIRMWARE_FEATURE_RAID_6_WRITE_BYPASS:
7287 ctrl_info->enable_r6_writes = firmware_feature->enabled;
7288 break;
21432010 7289 case PQI_FIRMWARE_FEATURE_SOFT_RESET_HANDSHAKE:
7290 ctrl_info->soft_reset_handshake_supported =
4ccc354b
KB		 7291 firmware_feature->enabled &&
7292 pqi_read_soft_reset_status(ctrl_info);
21432010 7293 break;
7294 case PQI_FIRMWARE_FEATURE_RAID_IU_TIMEOUT:
583891c9 7295 ctrl_info->raid_iu_timeout_supported = firmware_feature->enabled;
21432010 7296 break;
c2922f17 7297 case PQI_FIRMWARE_FEATURE_TMF_IU_TIMEOUT:
583891c9 7298 ctrl_info->tmf_iu_timeout_supported = firmware_feature->enabled;
c2922f17 7299 break;
7a84a821
KB		 7300 case PQI_FIRMWARE_FEATURE_UNIQUE_WWID_IN_REPORT_PHYS_LUN:
7301 ctrl_info->unique_wwid_in_report_phys_lun_supported =
c2922f17
MB		 7302 firmware_feature->enabled;
7303 break;
21432010 7304 }
7305
7306 pqi_firmware_feature_status(ctrl_info, firmware_feature);
7307}
7308
b212c251
KB		 7309static inline void pqi_firmware_feature_update(struct pqi_ctrl_info *ctrl_info,
7310 struct pqi_firmware_feature *firmware_feature)
7311{
7312 if (firmware_feature->feature_status)
7313 firmware_feature->feature_status(ctrl_info, firmware_feature);
7314}
7315
7316static DEFINE_MUTEX(pqi_firmware_features_mutex);
7317
7318static struct pqi_firmware_feature pqi_firmware_features[] = {
7319 {
7320 .feature_name = "Online Firmware Activation",
7321 .feature_bit = PQI_FIRMWARE_FEATURE_OFA,
7322 .feature_status = pqi_firmware_feature_status,
7323 },
7324 {
7325 .feature_name = "Serial Management Protocol",
7326 .feature_bit = PQI_FIRMWARE_FEATURE_SMP,
7327 .feature_status = pqi_firmware_feature_status,
7328 },
f6cc2a77
KB		 7329 {
7330 .feature_name = "Maximum Known Feature",
7331 .feature_bit = PQI_FIRMWARE_FEATURE_MAX_KNOWN_FEATURE,
7332 .feature_status = pqi_firmware_feature_status,
7333 },
7334 {
7335 .feature_name = "RAID 0 Read Bypass",
7336 .feature_bit = PQI_FIRMWARE_FEATURE_RAID_0_READ_BYPASS,
b212c251
KB		 7337 .feature_status = pqi_firmware_feature_status,
7338 },
7339 {
f6cc2a77
KB		 7340 .feature_name = "RAID 1 Read Bypass",
7341 .feature_bit = PQI_FIRMWARE_FEATURE_RAID_1_READ_BYPASS,
7342 .feature_status = pqi_firmware_feature_status,
7343 },
7344 {
7345 .feature_name = "RAID 5 Read Bypass",
7346 .feature_bit = PQI_FIRMWARE_FEATURE_RAID_5_READ_BYPASS,
b212c251
KB		 7347 .feature_status = pqi_firmware_feature_status,
7348 },
f6cc2a77
KB		 7349 {
7350 .feature_name = "RAID 6 Read Bypass",
7351 .feature_bit = PQI_FIRMWARE_FEATURE_RAID_6_READ_BYPASS,
7352 .feature_status = pqi_firmware_feature_status,
7353 },
7354 {
7355 .feature_name = "RAID 0 Write Bypass",
7356 .feature_bit = PQI_FIRMWARE_FEATURE_RAID_0_WRITE_BYPASS,
7357 .feature_status = pqi_firmware_feature_status,
7358 },
7359 {
7360 .feature_name = "RAID 1 Write Bypass",
7361 .feature_bit = PQI_FIRMWARE_FEATURE_RAID_1_WRITE_BYPASS,
7362 .feature_status = pqi_ctrl_update_feature_flags,
7363 },
7364 {
7365 .feature_name = "RAID 5 Write Bypass",
7366 .feature_bit = PQI_FIRMWARE_FEATURE_RAID_5_WRITE_BYPASS,
7367 .feature_status = pqi_ctrl_update_feature_flags,
7368 },
7369 {
7370 .feature_name = "RAID 6 Write Bypass",
7371 .feature_bit = PQI_FIRMWARE_FEATURE_RAID_6_WRITE_BYPASS,
7372 .feature_status = pqi_ctrl_update_feature_flags,
7373 },
4fd22c13
MR		 7374 {
7375 .feature_name = "New Soft Reset Handshake",
7376 .feature_bit = PQI_FIRMWARE_FEATURE_SOFT_RESET_HANDSHAKE,
21432010 7377 .feature_status = pqi_ctrl_update_feature_flags,
7378 },
7379 {
7380 .feature_name = "RAID IU Timeout",
7381 .feature_bit = PQI_FIRMWARE_FEATURE_RAID_IU_TIMEOUT,
7382 .feature_status = pqi_ctrl_update_feature_flags,
4fd22c13 7383 },
c2922f17
MB		 7384 {
7385 .feature_name = "TMF IU Timeout",
7386 .feature_bit = PQI_FIRMWARE_FEATURE_TMF_IU_TIMEOUT,
7387 .feature_status = pqi_ctrl_update_feature_flags,
7388 },
f6cc2a77
KB		 7389 {
7390 .feature_name = "RAID Bypass on encrypted logical volumes on NVMe",
7391 .feature_bit = PQI_FIRMWARE_FEATURE_RAID_BYPASS_ON_ENCRYPTED_NVME,
7392 .feature_status = pqi_firmware_feature_status,
7393 },
7a84a821
KB		 7394 {
7395 .feature_name = "Unique WWID in Report Physical LUN",
7396 .feature_bit = PQI_FIRMWARE_FEATURE_UNIQUE_WWID_IN_REPORT_PHYS_LUN,
7397 .feature_status = pqi_ctrl_update_feature_flags,
7398 },
b212c251
KB		 7399};
7400
7401static void pqi_process_firmware_features(
7402 struct pqi_config_table_section_info *section_info)
7403{
7404 int rc;
7405 struct pqi_ctrl_info *ctrl_info;
7406 struct pqi_config_table_firmware_features *firmware_features;
7407 void __iomem *firmware_features_iomem_addr;
7408 unsigned int i;
7409 unsigned int num_features_supported;
7410
7411 ctrl_info = section_info->ctrl_info;
7412 firmware_features = section_info->section;
7413 firmware_features_iomem_addr = section_info->section_iomem_addr;
7414
7415 for (i = 0, num_features_supported = 0;
7416 i < ARRAY_SIZE(pqi_firmware_features); i++) {
7417 if (pqi_is_firmware_feature_supported(firmware_features,
7418 pqi_firmware_features[i].feature_bit)) {
7419 pqi_firmware_features[i].supported = true;
7420 num_features_supported++;
7421 } else {
7422 pqi_firmware_feature_update(ctrl_info,
7423 &pqi_firmware_features[i]);
7424 }
7425 }
7426
7427 if (num_features_supported == 0)
7428 return;
7429
7430 for (i = 0; i < ARRAY_SIZE(pqi_firmware_features); i++) {
7431 if (!pqi_firmware_features[i].supported)
7432 continue;
7433 pqi_request_firmware_feature(firmware_features,
7434 pqi_firmware_features[i].feature_bit);
7435 }
7436
7437 rc = pqi_enable_firmware_features(ctrl_info, firmware_features,
7438 firmware_features_iomem_addr);
7439 if (rc) {
7440 dev_err(&ctrl_info->pci_dev->dev,
7441 "failed to enable firmware features in PQI configuration table\n");
7442 for (i = 0; i < ARRAY_SIZE(pqi_firmware_features); i++) {
7443 if (!pqi_firmware_features[i].supported)
7444 continue;
7445 pqi_firmware_feature_update(ctrl_info,
7446 &pqi_firmware_features[i]);
7447 }
7448 return;
7449 }
7450
7451 for (i = 0; i < ARRAY_SIZE(pqi_firmware_features); i++) {
7452 if (!pqi_firmware_features[i].supported)
7453 continue;
7454 if (pqi_is_firmware_feature_enabled(firmware_features,
7455 firmware_features_iomem_addr,
4fd22c13 7456 pqi_firmware_features[i].feature_bit)) {
583891c9 7457 pqi_firmware_features[i].enabled = true;
4fd22c13 7458 }
b212c251
KB		 7459 pqi_firmware_feature_update(ctrl_info,
7460 &pqi_firmware_features[i]);
7461 }
7462}
7463
7464static void pqi_init_firmware_features(void)
7465{
7466 unsigned int i;
7467
7468 for (i = 0; i < ARRAY_SIZE(pqi_firmware_features); i++) {
7469 pqi_firmware_features[i].supported = false;
7470 pqi_firmware_features[i].enabled = false;
7471 }
7472}
7473
7474static void pqi_process_firmware_features_section(
7475 struct pqi_config_table_section_info *section_info)
7476{
7477 mutex_lock(&pqi_firmware_features_mutex);
7478 pqi_init_firmware_features();
7479 pqi_process_firmware_features(section_info);
7480 mutex_unlock(&pqi_firmware_features_mutex);
7481}
7482
f6cc2a77
KB		 7483/*
7484 * Reset all controller settings that can be initialized during the processing
7485 * of the PQI Configuration Table.
7486 */
7487
4ccc354b
KB		 7488static void pqi_ctrl_reset_config(struct pqi_ctrl_info *ctrl_info)
7489{
7490 ctrl_info->heartbeat_counter = NULL;
7491 ctrl_info->soft_reset_status = NULL;
7492 ctrl_info->soft_reset_handshake_supported = false;
7493 ctrl_info->enable_r1_writes = false;
7494 ctrl_info->enable_r5_writes = false;
7495 ctrl_info->enable_r6_writes = false;
7496 ctrl_info->raid_iu_timeout_supported = false;
7497 ctrl_info->tmf_iu_timeout_supported = false;
7498 ctrl_info->unique_wwid_in_report_phys_lun_supported = false;
7499}
7500
98f87667
KB		 7501static int pqi_process_config_table(struct pqi_ctrl_info *ctrl_info)
7502{
7503 u32 table_length;
7504 u32 section_offset;
f6cc2a77 7505 bool firmware_feature_section_present;
98f87667
KB		 7506 void __iomem *table_iomem_addr;
7507 struct pqi_config_table *config_table;
7508 struct pqi_config_table_section_header *section;
b212c251 7509 struct pqi_config_table_section_info section_info;
f6cc2a77 7510 struct pqi_config_table_section_info feature_section_info;
98f87667
KB		 7511
7512 table_length = ctrl_info->config_table_length;
b212c251
KB		 7513 if (table_length == 0)
7514 return 0;
98f87667
KB		 7515
7516 config_table = kmalloc(table_length, GFP_KERNEL);
7517 if (!config_table) {
7518 dev_err(&ctrl_info->pci_dev->dev,
d87d5474 7519 "failed to allocate memory for PQI configuration table\n");
98f87667
KB		 7520 return -ENOMEM;
7521 }
7522
7523 /*
7524 * Copy the config table contents from I/O memory space into the
7525 * temporary buffer.
7526 */
583891c9 7527 table_iomem_addr = ctrl_info->iomem_base + ctrl_info->config_table_offset;
98f87667
KB		 7528 memcpy_fromio(config_table, table_iomem_addr, table_length);
7529
f6cc2a77 7530 firmware_feature_section_present = false;
b212c251 7531 section_info.ctrl_info = ctrl_info;
583891c9 7532 section_offset = get_unaligned_le32(&config_table->first_section_offset);
98f87667
KB		 7533
7534 while (section_offset) {
7535 section = (void *)config_table + section_offset;
7536
b212c251
KB		 7537 section_info.section = section;
7538 section_info.section_offset = section_offset;
583891c9 7539 section_info.section_iomem_addr = table_iomem_addr + section_offset;
b212c251 7540
98f87667 7541 switch (get_unaligned_le16(&section->section_id)) {
b212c251 7542 case PQI_CONFIG_TABLE_SECTION_FIRMWARE_FEATURES:
f6cc2a77
KB		 7543 firmware_feature_section_present = true;
7544 feature_section_info = section_info;
b212c251 7545 break;
98f87667 7546 case PQI_CONFIG_TABLE_SECTION_HEARTBEAT:
5a259e32
KB		 7547 if (pqi_disable_heartbeat)
7548 dev_warn(&ctrl_info->pci_dev->dev,
7549 "heartbeat disabled by module parameter\n");
7550 else
7551 ctrl_info->heartbeat_counter =
7552 table_iomem_addr +
7553 section_offset +
583891c9 7554 offsetof(struct pqi_config_table_heartbeat,
5a259e32 7555 heartbeat_counter);
98f87667 7556 break;
4fd22c13
MR		 7557 case PQI_CONFIG_TABLE_SECTION_SOFT_RESET:
7558 ctrl_info->soft_reset_status =
7559 table_iomem_addr +
7560 section_offset +
7561 offsetof(struct pqi_config_table_soft_reset,
583891c9 7562 soft_reset_status);
4fd22c13 7563 break;
98f87667
KB		 7564 }
7565
583891c9 7566 section_offset = get_unaligned_le16(&section->next_section_offset);
98f87667
KB		 7567 }
7568
f6cc2a77
KB		 7569 /*
7570 * We process the firmware feature section after all other sections
7571 * have been processed so that the feature bit callbacks can take
7572 * into account the settings configured by other sections.
7573 */
7574 if (firmware_feature_section_present)
7575 pqi_process_firmware_features_section(&feature_section_info);
7576
98f87667
KB		 7577 kfree(config_table);
7578
7579 return 0;
7580}
7581
162d7753
KB		 7582/* Switches the controller from PQI mode back into SIS mode. */
7583
7584static int pqi_revert_to_sis_mode(struct pqi_ctrl_info *ctrl_info)
7585{
7586 int rc;
7587
061ef06a 7588 pqi_change_irq_mode(ctrl_info, IRQ_MODE_NONE);
162d7753
KB		 7589 rc = pqi_reset(ctrl_info);
7590 if (rc)
7591 return rc;
4f078e24
KB		 7592 rc = sis_reenable_sis_mode(ctrl_info);
7593 if (rc) {
7594 dev_err(&ctrl_info->pci_dev->dev,
7595 "re-enabling SIS mode failed with error %d\n", rc);
7596 return rc;
7597 }
162d7753
KB		 7598 pqi_save_ctrl_mode(ctrl_info, SIS_MODE);
7599
7600 return 0;
7601}
7602
7603/*
7604 * If the controller isn't already in SIS mode, this function forces it into
7605 * SIS mode.
7606 */
7607
7608static int pqi_force_sis_mode(struct pqi_ctrl_info *ctrl_info)
ff6abb73
KB		 7609{
7610 if (!sis_is_firmware_running(ctrl_info))
7611 return -ENXIO;
7612
162d7753
KB		 7613 if (pqi_get_ctrl_mode(ctrl_info) == SIS_MODE)
7614 return 0;
7615
7616 if (sis_is_kernel_up(ctrl_info)) {
7617 pqi_save_ctrl_mode(ctrl_info, SIS_MODE);
7618 return 0;
ff6abb73
KB		 7619 }
7620
162d7753 7621 return pqi_revert_to_sis_mode(ctrl_info);
ff6abb73
KB		 7622}
7623
6c223761
KB		 7624static int pqi_ctrl_init(struct pqi_ctrl_info *ctrl_info)
7625{
7626 int rc;
2708a256 7627 u32 product_id;
6c223761 7628
0530736e
KB		 7629 if (reset_devices) {
7630 sis_soft_reset(ctrl_info);
3268b8a8 7631 msleep(PQI_POST_RESET_DELAY_SECS * PQI_HZ);
0530736e
KB		 7632 } else {
7633 rc = pqi_force_sis_mode(ctrl_info);
7634 if (rc)
7635 return rc;
7636 }
6c223761
KB		 7637
7638 /*
7639 * Wait until the controller is ready to start accepting SIS
7640 * commands.
7641 */
7642 rc = sis_wait_for_ctrl_ready(ctrl_info);
8845fdfa 7643 if (rc)
6c223761 7644 return rc;
6c223761
KB		 7645
7646 /*
7647 * Get the controller properties. This allows us to determine
7648 * whether or not it supports PQI mode.
7649 */
7650 rc = sis_get_ctrl_properties(ctrl_info);
7651 if (rc) {
7652 dev_err(&ctrl_info->pci_dev->dev,
7653 "error obtaining controller properties\n");
7654 return rc;
7655 }
7656
7657 rc = sis_get_pqi_capabilities(ctrl_info);
7658 if (rc) {
7659 dev_err(&ctrl_info->pci_dev->dev,
7660 "error obtaining controller capabilities\n");
7661 return rc;
7662 }
7663
2708a256
KB		 7664 product_id = sis_get_product_id(ctrl_info);
7665 ctrl_info->product_id = (u8)product_id;
7666 ctrl_info->product_revision = (u8)(product_id >> 8);
7667
d727a776
KB		 7668 if (reset_devices) {
7669 if (ctrl_info->max_outstanding_requests >
7670 PQI_MAX_OUTSTANDING_REQUESTS_KDUMP)
583891c9 7671 ctrl_info->max_outstanding_requests =
d727a776
KB		 7672 PQI_MAX_OUTSTANDING_REQUESTS_KDUMP;
7673 } else {
7674 if (ctrl_info->max_outstanding_requests >
7675 PQI_MAX_OUTSTANDING_REQUESTS)
583891c9 7676 ctrl_info->max_outstanding_requests =
d727a776
KB		 7677 PQI_MAX_OUTSTANDING_REQUESTS;
7678 }
6c223761
KB		 7679
7680 pqi_calculate_io_resources(ctrl_info);
7681
7682 rc = pqi_alloc_error_buffer(ctrl_info);
7683 if (rc) {
7684 dev_err(&ctrl_info->pci_dev->dev,
7685 "failed to allocate PQI error buffer\n");
7686 return rc;
7687 }
7688
7689 /*
7690 * If the function we are about to call succeeds, the
7691 * controller will transition from legacy SIS mode
7692 * into PQI mode.
7693 */
7694 rc = sis_init_base_struct_addr(ctrl_info);
7695 if (rc) {
7696 dev_err(&ctrl_info->pci_dev->dev,
7697 "error initializing PQI mode\n");
7698 return rc;
7699 }
7700
7701 /* Wait for the controller to complete the SIS -> PQI transition. */
7702 rc = pqi_wait_for_pqi_mode_ready(ctrl_info);
7703 if (rc) {
7704 dev_err(&ctrl_info->pci_dev->dev,
7705 "transition to PQI mode failed\n");
7706 return rc;
7707 }
7708
7709 /* From here on, we are running in PQI mode. */
7710 ctrl_info->pqi_mode_enabled = true;
ff6abb73 7711 pqi_save_ctrl_mode(ctrl_info, PQI_MODE);
6c223761
KB		 7712
7713 rc = pqi_alloc_admin_queues(ctrl_info);
7714 if (rc) {
7715 dev_err(&ctrl_info->pci_dev->dev,
d87d5474 7716 "failed to allocate admin queues\n");
6c223761
KB		 7717 return rc;
7718 }
7719
7720 rc = pqi_create_admin_queues(ctrl_info);
7721 if (rc) {
7722 dev_err(&ctrl_info->pci_dev->dev,
7723 "error creating admin queues\n");
7724 return rc;
7725 }
7726
7727 rc = pqi_report_device_capability(ctrl_info);
7728 if (rc) {
7729 dev_err(&ctrl_info->pci_dev->dev,
7730 "obtaining device capability failed\n");
7731 return rc;
7732 }
7733
7734 rc = pqi_validate_device_capability(ctrl_info);
7735 if (rc)
7736 return rc;
7737
7738 pqi_calculate_queue_resources(ctrl_info);
7739
7740 rc = pqi_enable_msix_interrupts(ctrl_info);
7741 if (rc)
7742 return rc;
7743
7744 if (ctrl_info->num_msix_vectors_enabled < ctrl_info->num_queue_groups) {
7745 ctrl_info->max_msix_vectors =
7746 ctrl_info->num_msix_vectors_enabled;
7747 pqi_calculate_queue_resources(ctrl_info);
7748 }
7749
7750 rc = pqi_alloc_io_resources(ctrl_info);
7751 if (rc)
7752 return rc;
7753
7754 rc = pqi_alloc_operational_queues(ctrl_info);
d87d5474
KB		 7755 if (rc) {
7756 dev_err(&ctrl_info->pci_dev->dev,
7757 "failed to allocate operational queues\n");
6c223761 7758 return rc;
d87d5474 7759 }
6c223761
KB		 7760
7761 pqi_init_operational_queues(ctrl_info);
7762
0777a3fb 7763 rc = pqi_create_queues(ctrl_info);
6c223761
KB		 7764 if (rc)
7765 return rc;
7766
0777a3fb 7767 rc = pqi_request_irqs(ctrl_info);
6c223761
KB		 7768 if (rc)
7769 return rc;
7770
061ef06a
KB		 7771 pqi_change_irq_mode(ctrl_info, IRQ_MODE_MSIX);
7772
7773 ctrl_info->controller_online = true;
b212c251
KB		 7774
7775 rc = pqi_process_config_table(ctrl_info);
7776 if (rc)
7777 return rc;
7778
061ef06a 7779 pqi_start_heartbeat_timer(ctrl_info);
6c223761 7780
f6cc2a77
KB		 7781 if (ctrl_info->enable_r5_writes || ctrl_info->enable_r6_writes) {
7782 rc = pqi_get_advanced_raid_bypass_config(ctrl_info);
7783 if (rc) { /* Supported features not returned correctly. */
7784 dev_err(&ctrl_info->pci_dev->dev,
7785 "error obtaining advanced RAID bypass configuration\n");
7786 return rc;
7787 }
7788 ctrl_info->ciss_report_log_flags |=
7789 CISS_REPORT_LOG_FLAG_DRIVE_TYPE_MIX;
7790 }
7791
6a50d6ad 7792 rc = pqi_enable_events(ctrl_info);
6c223761
KB		 7793 if (rc) {
7794 dev_err(&ctrl_info->pci_dev->dev,
6a50d6ad 7795 "error enabling events\n");
6c223761
KB		 7796 return rc;
7797 }
7798
6c223761
KB		 7799 /* Register with the SCSI subsystem. */
7800 rc = pqi_register_scsi(ctrl_info);
7801 if (rc)
7802 return rc;
7803
6d90615f
MB		 7804 rc = pqi_get_ctrl_product_details(ctrl_info);
7805 if (rc) {
7806 dev_err(&ctrl_info->pci_dev->dev,
7807 "error obtaining product details\n");
7808 return rc;
7809 }
7810
7811 rc = pqi_get_ctrl_serial_number(ctrl_info);
6c223761
KB		 7812 if (rc) {
7813 dev_err(&ctrl_info->pci_dev->dev,
6d90615f 7814 "error obtaining ctrl serial number\n");
6c223761
KB		 7815 return rc;
7816 }
7817
171c2865
DC		 7818 rc = pqi_set_diag_rescan(ctrl_info);
7819 if (rc) {
7820 dev_err(&ctrl_info->pci_dev->dev,
7821 "error enabling multi-lun rescan\n");
7822 return rc;
7823 }
7824
6c223761
KB		 7825 rc = pqi_write_driver_version_to_host_wellness(ctrl_info);
7826 if (rc) {
7827 dev_err(&ctrl_info->pci_dev->dev,
7828 "error updating host wellness\n");
7829 return rc;
7830 }
7831
7832 pqi_schedule_update_time_worker(ctrl_info);
7833
7834 pqi_scan_scsi_devices(ctrl_info);
7835
7836 return 0;
7837}
7838
061ef06a
KB		 7839static void pqi_reinit_queues(struct pqi_ctrl_info *ctrl_info)
7840{
7841 unsigned int i;
7842 struct pqi_admin_queues *admin_queues;
7843 struct pqi_event_queue *event_queue;
7844
7845 admin_queues = &ctrl_info->admin_queues;
7846 admin_queues->iq_pi_copy = 0;
7847 admin_queues->oq_ci_copy = 0;
dac12fbc 7848 writel(0, admin_queues->oq_pi);
061ef06a
KB		 7849
7850 for (i = 0; i < ctrl_info->num_queue_groups; i++) {
7851 ctrl_info->queue_groups[i].iq_pi_copy[RAID_PATH] = 0;
7852 ctrl_info->queue_groups[i].iq_pi_copy[AIO_PATH] = 0;
7853 ctrl_info->queue_groups[i].oq_ci_copy = 0;
7854
dac12fbc
KB		 7855 writel(0, ctrl_info->queue_groups[i].iq_ci[RAID_PATH]);
7856 writel(0, ctrl_info->queue_groups[i].iq_ci[AIO_PATH]);
7857 writel(0, ctrl_info->queue_groups[i].oq_pi);
061ef06a
KB		 7858 }
7859
7860 event_queue = &ctrl_info->event_queue;
dac12fbc 7861 writel(0, event_queue->oq_pi);
061ef06a
KB		 7862 event_queue->oq_ci_copy = 0;
7863}
7864
7865static int pqi_ctrl_init_resume(struct pqi_ctrl_info *ctrl_info)
7866{
7867 int rc;
7868
7869 rc = pqi_force_sis_mode(ctrl_info);
7870 if (rc)
7871 return rc;
7872
7873 /*
7874 * Wait until the controller is ready to start accepting SIS
7875 * commands.
7876 */
7877 rc = sis_wait_for_ctrl_ready_resume(ctrl_info);
7878 if (rc)
7879 return rc;
7880
4fd22c13
MR		 7881 /*
7882 * Get the controller properties. This allows us to determine
7883 * whether or not it supports PQI mode.
7884 */
7885 rc = sis_get_ctrl_properties(ctrl_info);
7886 if (rc) {
7887 dev_err(&ctrl_info->pci_dev->dev,
7888 "error obtaining controller properties\n");
7889 return rc;
7890 }
7891
7892 rc = sis_get_pqi_capabilities(ctrl_info);
7893 if (rc) {
7894 dev_err(&ctrl_info->pci_dev->dev,
7895 "error obtaining controller capabilities\n");
7896 return rc;
7897 }
7898
061ef06a
KB		 7899 /*
7900 * If the function we are about to call succeeds, the
7901 * controller will transition from legacy SIS mode
7902 * into PQI mode.
7903 */
7904 rc = sis_init_base_struct_addr(ctrl_info);
7905 if (rc) {
7906 dev_err(&ctrl_info->pci_dev->dev,
7907 "error initializing PQI mode\n");
7908 return rc;
7909 }
7910
7911 /* Wait for the controller to complete the SIS -> PQI transition. */
7912 rc = pqi_wait_for_pqi_mode_ready(ctrl_info);
7913 if (rc) {
7914 dev_err(&ctrl_info->pci_dev->dev,
7915 "transition to PQI mode failed\n");
7916 return rc;
7917 }
7918
7919 /* From here on, we are running in PQI mode. */
7920 ctrl_info->pqi_mode_enabled = true;
7921 pqi_save_ctrl_mode(ctrl_info, PQI_MODE);
7922
7923 pqi_reinit_queues(ctrl_info);
7924
7925 rc = pqi_create_admin_queues(ctrl_info);
7926 if (rc) {
7927 dev_err(&ctrl_info->pci_dev->dev,
7928 "error creating admin queues\n");
7929 return rc;
7930 }
7931
7932 rc = pqi_create_queues(ctrl_info);
7933 if (rc)
7934 return rc;
7935
7936 pqi_change_irq_mode(ctrl_info, IRQ_MODE_MSIX);
7937
7938 ctrl_info->controller_online = true;
061ef06a
KB		 7939 pqi_ctrl_unblock_requests(ctrl_info);
7940
4ccc354b
KB		 7941 pqi_ctrl_reset_config(ctrl_info);
7942
4fd22c13
MR		 7943 rc = pqi_process_config_table(ctrl_info);
7944 if (rc)
7945 return rc;
7946
7947 pqi_start_heartbeat_timer(ctrl_info);
7948
f6cc2a77
KB		 7949 if (ctrl_info->enable_r5_writes || ctrl_info->enable_r6_writes) {
7950 rc = pqi_get_advanced_raid_bypass_config(ctrl_info);
7951 if (rc) {
7952 dev_err(&ctrl_info->pci_dev->dev,
7953 "error obtaining advanced RAID bypass configuration\n");
7954 return rc;
7955 }
7956 ctrl_info->ciss_report_log_flags |=
7957 CISS_REPORT_LOG_FLAG_DRIVE_TYPE_MIX;
7958 }
7959
061ef06a
KB		 7960 rc = pqi_enable_events(ctrl_info);
7961 if (rc) {
7962 dev_err(&ctrl_info->pci_dev->dev,
d87d5474 7963 "error enabling events\n");
061ef06a
KB		 7964 return rc;
7965 }
7966
6d90615f 7967 rc = pqi_get_ctrl_product_details(ctrl_info);
4fd22c13
MR		 7968 if (rc) {
7969 dev_err(&ctrl_info->pci_dev->dev,
694c5d5b 7970 "error obtaining product details\n");
4fd22c13
MR		 7971 return rc;
7972 }
7973
171c2865
DC		 7974 rc = pqi_set_diag_rescan(ctrl_info);
7975 if (rc) {
7976 dev_err(&ctrl_info->pci_dev->dev,
7977 "error enabling multi-lun rescan\n");
7978 return rc;
7979 }
7980
061ef06a
KB		 7981 rc = pqi_write_driver_version_to_host_wellness(ctrl_info);
7982 if (rc) {
7983 dev_err(&ctrl_info->pci_dev->dev,
7984 "error updating host wellness\n");
7985 return rc;
7986 }
7987
2790cd4d
KB		 7988 if (pqi_ofa_in_progress(ctrl_info))
7989 pqi_ctrl_unblock_scan(ctrl_info);
061ef06a
KB		 7990
7991 pqi_scan_scsi_devices(ctrl_info);
7992
7993 return 0;
7994}
7995
583891c9 7996static inline int pqi_set_pcie_completion_timeout(struct pci_dev *pci_dev, u16 timeout)
a81ed5f3 7997{
d20df83b
BOS		 7998 int rc;
7999
8000 rc = pcie_capability_clear_and_set_word(pci_dev, PCI_EXP_DEVCTL2,
a81ed5f3 8001 PCI_EXP_DEVCTL2_COMP_TIMEOUT, timeout);
d20df83b
BOS		 8002
8003 return pcibios_err_to_errno(rc);
a81ed5f3
KB		 8004}
8005
6c223761
KB		 8006static int pqi_pci_init(struct pqi_ctrl_info *ctrl_info)
8007{
8008 int rc;
8009 u64 mask;
8010
8011 rc = pci_enable_device(ctrl_info->pci_dev);
8012 if (rc) {
8013 dev_err(&ctrl_info->pci_dev->dev,
8014 "failed to enable PCI device\n");
8015 return rc;
8016 }
8017
8018 if (sizeof(dma_addr_t) > 4)
8019 mask = DMA_BIT_MASK(64);
8020 else
8021 mask = DMA_BIT_MASK(32);
8022
1d94f06e 8023 rc = dma_set_mask_and_coherent(&ctrl_info->pci_dev->dev, mask);
6c223761
KB		 8024 if (rc) {
8025 dev_err(&ctrl_info->pci_dev->dev, "failed to set DMA mask\n");
8026 goto disable_device;
8027 }
8028
8029 rc = pci_request_regions(ctrl_info->pci_dev, DRIVER_NAME_SHORT);
8030 if (rc) {
8031 dev_err(&ctrl_info->pci_dev->dev,
8032 "failed to obtain PCI resources\n");
8033 goto disable_device;
8034 }
8035
4bdc0d67 8036 ctrl_info->iomem_base = ioremap(pci_resource_start(
6c223761
KB		 8037 ctrl_info->pci_dev, 0),
8038 sizeof(struct pqi_ctrl_registers));
8039 if (!ctrl_info->iomem_base) {
8040 dev_err(&ctrl_info->pci_dev->dev,
8041 "failed to map memory for controller registers\n");
8042 rc = -ENOMEM;
8043 goto release_regions;
8044 }
8045
a81ed5f3
KB		 8046#define PCI_EXP_COMP_TIMEOUT_65_TO_210_MS 0x6
8047
8048 /* Increase the PCIe completion timeout. */
8049 rc = pqi_set_pcie_completion_timeout(ctrl_info->pci_dev,
8050 PCI_EXP_COMP_TIMEOUT_65_TO_210_MS);
8051 if (rc) {
8052 dev_err(&ctrl_info->pci_dev->dev,
8053 "failed to set PCIe completion timeout\n");
8054 goto release_regions;
8055 }
8056
6c223761
KB		 8057 /* Enable bus mastering. */
8058 pci_set_master(ctrl_info->pci_dev);
8059
cbe0c7b1
KB		 8060 ctrl_info->registers = ctrl_info->iomem_base;
8061 ctrl_info->pqi_registers = &ctrl_info->registers->pqi_registers;
8062
6c223761
KB		 8063 pci_set_drvdata(ctrl_info->pci_dev, ctrl_info);
8064
8065 return 0;
8066
8067release_regions:
8068 pci_release_regions(ctrl_info->pci_dev);
8069disable_device:
8070 pci_disable_device(ctrl_info->pci_dev);
8071
8072 return rc;
8073}
8074
8075static void pqi_cleanup_pci_init(struct pqi_ctrl_info *ctrl_info)
8076{
8077 iounmap(ctrl_info->iomem_base);
8078 pci_release_regions(ctrl_info->pci_dev);
cbe0c7b1
KB		 8079 if (pci_is_enabled(ctrl_info->pci_dev))
8080 pci_disable_device(ctrl_info->pci_dev);
6c223761
KB		 8081 pci_set_drvdata(ctrl_info->pci_dev, NULL);
8082}
8083
8084static struct pqi_ctrl_info *pqi_alloc_ctrl_info(int numa_node)
8085{
8086 struct pqi_ctrl_info *ctrl_info;
8087
8088 ctrl_info = kzalloc_node(sizeof(struct pqi_ctrl_info),
8089 GFP_KERNEL, numa_node);
8090 if (!ctrl_info)
8091 return NULL;
8092
8093 mutex_init(&ctrl_info->scan_mutex);
7561a7e4 8094 mutex_init(&ctrl_info->lun_reset_mutex);
4fd22c13 8095 mutex_init(&ctrl_info->ofa_mutex);
6c223761
KB		 8096
8097 INIT_LIST_HEAD(&ctrl_info->scsi_device_list);
8098 spin_lock_init(&ctrl_info->scsi_device_list_lock);
8099
8100 INIT_WORK(&ctrl_info->event_work, pqi_event_worker);
8101 atomic_set(&ctrl_info->num_interrupts, 0);
8102
8103 INIT_DELAYED_WORK(&ctrl_info->rescan_work, pqi_rescan_worker);
8104 INIT_DELAYED_WORK(&ctrl_info->update_time_work, pqi_update_time_worker);
8105
74a0f573 8106 timer_setup(&ctrl_info->heartbeat_timer, pqi_heartbeat_timer_handler, 0);
5f310425 8107 INIT_WORK(&ctrl_info->ctrl_offline_work, pqi_ctrl_offline_worker);
98f87667 8108
2790cd4d
KB		 8109 INIT_WORK(&ctrl_info->ofa_memory_alloc_work, pqi_ofa_memory_alloc_worker);
8110 INIT_WORK(&ctrl_info->ofa_quiesce_work, pqi_ofa_quiesce_worker);
8111
6c223761
KB		 8112 sema_init(&ctrl_info->sync_request_sem,
8113 PQI_RESERVED_IO_SLOTS_SYNCHRONOUS_REQUESTS);
7561a7e4 8114 init_waitqueue_head(&ctrl_info->block_requests_wait);
6c223761
KB		 8115
8116 ctrl_info->ctrl_id = atomic_inc_return(&pqi_controller_count) - 1;
061ef06a 8117 ctrl_info->irq_mode = IRQ_MODE_NONE;
6c223761
KB		 8118 ctrl_info->max_msix_vectors = PQI_MAX_MSIX_VECTORS;
8119
f6cc2a77
KB		 8120 ctrl_info->ciss_report_log_flags = CISS_REPORT_LOG_FLAG_UNIQUE_LUN_ID;
8121 ctrl_info->max_transfer_encrypted_sas_sata =
8122 PQI_DEFAULT_MAX_TRANSFER_ENCRYPTED_SAS_SATA;
8123 ctrl_info->max_transfer_encrypted_nvme =
8124 PQI_DEFAULT_MAX_TRANSFER_ENCRYPTED_NVME;
8125 ctrl_info->max_write_raid_5_6 = PQI_DEFAULT_MAX_WRITE_RAID_5_6;
8126 ctrl_info->max_write_raid_1_10_2drive = ~0;
8127 ctrl_info->max_write_raid_1_10_3drive = ~0;
8128
6c223761
KB		 8129 return ctrl_info;
8130}
8131
8132static inline void pqi_free_ctrl_info(struct pqi_ctrl_info *ctrl_info)
8133{
8134 kfree(ctrl_info);
8135}
8136
8137static void pqi_free_interrupts(struct pqi_ctrl_info *ctrl_info)
8138{
98bf061b
KB		 8139 pqi_free_irqs(ctrl_info);
8140 pqi_disable_msix_interrupts(ctrl_info);
6c223761
KB		 8141}
8142
8143static void pqi_free_ctrl_resources(struct pqi_ctrl_info *ctrl_info)
8144{
8145 pqi_stop_heartbeat_timer(ctrl_info);
8146 pqi_free_interrupts(ctrl_info);
8147 if (ctrl_info->queue_memory_base)
8148 dma_free_coherent(&ctrl_info->pci_dev->dev,
8149 ctrl_info->queue_memory_length,
8150 ctrl_info->queue_memory_base,
8151 ctrl_info->queue_memory_base_dma_handle);
8152 if (ctrl_info->admin_queue_memory_base)
8153 dma_free_coherent(&ctrl_info->pci_dev->dev,
8154 ctrl_info->admin_queue_memory_length,
8155 ctrl_info->admin_queue_memory_base,
8156 ctrl_info->admin_queue_memory_base_dma_handle);
8157 pqi_free_all_io_requests(ctrl_info);
8158 if (ctrl_info->error_buffer)
8159 dma_free_coherent(&ctrl_info->pci_dev->dev,
8160 ctrl_info->error_buffer_length,
8161 ctrl_info->error_buffer,
8162 ctrl_info->error_buffer_dma_handle);
8163 if (ctrl_info->iomem_base)
8164 pqi_cleanup_pci_init(ctrl_info);
8165 pqi_free_ctrl_info(ctrl_info);
8166}
8167
8168static void pqi_remove_ctrl(struct pqi_ctrl_info *ctrl_info)
8169{
061ef06a
KB		 8170 pqi_cancel_rescan_worker(ctrl_info);
8171 pqi_cancel_update_time_worker(ctrl_info);
e57a1f9b 8172 pqi_unregister_scsi(ctrl_info);
162d7753
KB		 8173 if (ctrl_info->pqi_mode_enabled)
8174 pqi_revert_to_sis_mode(ctrl_info);
6c223761
KB		 8175 pqi_free_ctrl_resources(ctrl_info);
8176}
8177
4fd22c13
MR		 8178static void pqi_ofa_ctrl_quiesce(struct pqi_ctrl_info *ctrl_info)
8179{
2790cd4d
KB		 8180 pqi_ctrl_block_scan(ctrl_info);
8181 pqi_scsi_block_requests(ctrl_info);
8182 pqi_ctrl_block_device_reset(ctrl_info);
4fd22c13
MR		 8183 pqi_ctrl_block_requests(ctrl_info);
8184 pqi_ctrl_wait_until_quiesced(ctrl_info);
4fd22c13 8185 pqi_stop_heartbeat_timer(ctrl_info);
4fd22c13
MR		 8186}
8187
8188static void pqi_ofa_ctrl_unquiesce(struct pqi_ctrl_info *ctrl_info)
8189{
4fd22c13 8190 pqi_start_heartbeat_timer(ctrl_info);
2790cd4d
KB		 8191 pqi_ctrl_unblock_requests(ctrl_info);
8192 pqi_ctrl_unblock_device_reset(ctrl_info);
8193 pqi_scsi_unblock_requests(ctrl_info);
8194 pqi_ctrl_unblock_scan(ctrl_info);
4fd22c13
MR		 8195}
8196
2790cd4d 8197static int pqi_ofa_alloc_mem(struct pqi_ctrl_info *ctrl_info, u32 total_size, u32 chunk_size)
4fd22c13 8198{
4fd22c13 8199 int i;
2790cd4d 8200 u32 sg_count;
4fd22c13
MR		 8201 struct device *dev;
8202 struct pqi_ofa_memory *ofap;
2790cd4d
KB		 8203 struct pqi_sg_descriptor *mem_descriptor;
8204 dma_addr_t dma_handle;
4fd22c13
MR		 8205
8206 ofap = ctrl_info->pqi_ofa_mem_virt_addr;
8207
2790cd4d
KB		 8208 sg_count = DIV_ROUND_UP(total_size, chunk_size);
8209 if (sg_count == 0 || sg_count > PQI_OFA_MAX_SG_DESCRIPTORS)
4fd22c13
MR		 8210 goto out;
8211
2790cd4d 8212 ctrl_info->pqi_ofa_chunk_virt_addr = kmalloc_array(sg_count, sizeof(void *), GFP_KERNEL);
4fd22c13
MR		 8213 if (!ctrl_info->pqi_ofa_chunk_virt_addr)
8214 goto out;
8215
2790cd4d 8216 dev = &ctrl_info->pci_dev->dev;
4fd22c13 8217
2790cd4d 8218 for (i = 0; i < sg_count; i++) {
4fd22c13 8219 ctrl_info->pqi_ofa_chunk_virt_addr[i] =
2790cd4d 8220 dma_alloc_coherent(dev, chunk_size, &dma_handle, GFP_KERNEL);
4fd22c13 8221 if (!ctrl_info->pqi_ofa_chunk_virt_addr[i])
2790cd4d 8222 goto out_free_chunks;
4fd22c13 8223 mem_descriptor = &ofap->sg_descriptor[i];
583891c9
KB		 8224 put_unaligned_le64((u64)dma_handle, &mem_descriptor->address);
8225 put_unaligned_le32(chunk_size, &mem_descriptor->length);
4fd22c13
MR		 8226 }
8227
4fd22c13
MR		 8228 put_unaligned_le32(CISS_SG_LAST, &mem_descriptor->flags);
8229 put_unaligned_le16(sg_count, &ofap->num_memory_descriptors);
2790cd4d 8230 put_unaligned_le32(sg_count * chunk_size, &ofap->bytes_allocated);
4fd22c13
MR		 8231
8232 return 0;
8233
8234out_free_chunks:
8235 while (--i >= 0) {
8236 mem_descriptor = &ofap->sg_descriptor[i];
8237 dma_free_coherent(dev, chunk_size,
2790cd4d
KB		 8238 ctrl_info->pqi_ofa_chunk_virt_addr[i],
8239 get_unaligned_le64(&mem_descriptor->address));
4fd22c13
MR		 8240 }
8241 kfree(ctrl_info->pqi_ofa_chunk_virt_addr);
8242
8243out:
4fd22c13
MR		 8244 return -ENOMEM;
8245}
8246
8247static int pqi_ofa_alloc_host_buffer(struct pqi_ctrl_info *ctrl_info)
8248{
8249 u32 total_size;
2790cd4d 8250 u32 chunk_size;
4fd22c13 8251 u32 min_chunk_size;
4fd22c13 8252
2790cd4d
KB		 8253 if (ctrl_info->ofa_bytes_requested == 0)
8254 return 0;
4fd22c13 8255
2790cd4d
KB		 8256 total_size = PAGE_ALIGN(ctrl_info->ofa_bytes_requested);
8257 min_chunk_size = DIV_ROUND_UP(total_size, PQI_OFA_MAX_SG_DESCRIPTORS);
8258 min_chunk_size = PAGE_ALIGN(min_chunk_size);
4fd22c13 8259
2790cd4d
KB		 8260 for (chunk_size = total_size; chunk_size >= min_chunk_size;) {
8261 if (pqi_ofa_alloc_mem(ctrl_info, total_size, chunk_size) == 0)
4fd22c13 8262 return 0;
2790cd4d
KB		 8263 chunk_size /= 2;
8264 chunk_size = PAGE_ALIGN(chunk_size);
8265 }
4fd22c13
MR		 8266
8267 return -ENOMEM;
8268}
8269
2790cd4d 8270static void pqi_ofa_setup_host_buffer(struct pqi_ctrl_info *ctrl_info)
4fd22c13 8271{
4fd22c13 8272 struct device *dev;
2790cd4d 8273 struct pqi_ofa_memory *ofap;
4fd22c13
MR		 8274
8275 dev = &ctrl_info->pci_dev->dev;
4fd22c13 8276
2790cd4d
KB		 8277 ofap = dma_alloc_coherent(dev, sizeof(*ofap),
8278 &ctrl_info->pqi_ofa_mem_dma_handle, GFP_KERNEL);
8279 if (!ofap)
4fd22c13
MR		 8280 return;
8281
2790cd4d 8282 ctrl_info->pqi_ofa_mem_virt_addr = ofap;
4fd22c13
MR		 8283
8284 if (pqi_ofa_alloc_host_buffer(ctrl_info) < 0) {
2790cd4d
KB		 8285 dev_err(dev,
8286 "failed to allocate host buffer for Online Firmware Activation\n");
8287 dma_free_coherent(dev, sizeof(*ofap), ofap, ctrl_info->pqi_ofa_mem_dma_handle);
8288 ctrl_info->pqi_ofa_mem_virt_addr = NULL;
8289 return;
4fd22c13 8290 }
694c5d5b 8291
2790cd4d
KB		 8292 put_unaligned_le16(PQI_OFA_VERSION, &ofap->version);
8293 memcpy(&ofap->signature, PQI_OFA_SIGNATURE, sizeof(ofap->signature));
4fd22c13
MR		 8294}
8295
8296static void pqi_ofa_free_host_buffer(struct pqi_ctrl_info *ctrl_info)
8297{
2790cd4d
KB		 8298 unsigned int i;
8299 struct device *dev;
4fd22c13 8300 struct pqi_ofa_memory *ofap;
2790cd4d
KB		 8301 struct pqi_sg_descriptor *mem_descriptor;
8302 unsigned int num_memory_descriptors;
4fd22c13
MR		 8303
8304 ofap = ctrl_info->pqi_ofa_mem_virt_addr;
4fd22c13
MR		 8305 if (!ofap)
8306 return;
8307
2790cd4d
KB		 8308 dev = &ctrl_info->pci_dev->dev;
8309
8310 if (get_unaligned_le32(&ofap->bytes_allocated) == 0)
4fd22c13
MR		 8311 goto out;
8312
8313 mem_descriptor = ofap->sg_descriptor;
2790cd4d
KB		 8314 num_memory_descriptors =
8315 get_unaligned_le16(&ofap->num_memory_descriptors);
4fd22c13 8316
2790cd4d
KB		 8317 for (i = 0; i < num_memory_descriptors; i++) {
8318 dma_free_coherent(dev,
4fd22c13
MR		 8319 get_unaligned_le32(&mem_descriptor[i].length),
8320 ctrl_info->pqi_ofa_chunk_virt_addr[i],
8321 get_unaligned_le64(&mem_descriptor[i].address));
8322 }
8323 kfree(ctrl_info->pqi_ofa_chunk_virt_addr);
8324
8325out:
2790cd4d
KB		 8326 dma_free_coherent(dev, sizeof(*ofap), ofap,
8327 ctrl_info->pqi_ofa_mem_dma_handle);
4fd22c13
MR		 8328 ctrl_info->pqi_ofa_mem_virt_addr = NULL;
8329}
8330
8331static int pqi_ofa_host_memory_update(struct pqi_ctrl_info *ctrl_info)
8332{
2790cd4d 8333 u32 buffer_length;
4fd22c13 8334 struct pqi_vendor_general_request request;
4fd22c13
MR		 8335 struct pqi_ofa_memory *ofap;
8336
8337 memset(&request, 0, sizeof(request));
8338
4fd22c13
MR		 8339 request.header.iu_type = PQI_REQUEST_IU_VENDOR_GENERAL;
8340 put_unaligned_le16(sizeof(request) - PQI_REQUEST_HEADER_LENGTH,
8341 &request.header.iu_length);
8342 put_unaligned_le16(PQI_VENDOR_GENERAL_HOST_MEMORY_UPDATE,
8343 &request.function_code);
8344
2790cd4d
KB		 8345 ofap = ctrl_info->pqi_ofa_mem_virt_addr;
8346
4fd22c13 8347 if (ofap) {
2790cd4d 8348 buffer_length = offsetof(struct pqi_ofa_memory, sg_descriptor) +
4fd22c13
MR		 8349 get_unaligned_le16(&ofap->num_memory_descriptors) *
8350 sizeof(struct pqi_sg_descriptor);
8351
8352 put_unaligned_le64((u64)ctrl_info->pqi_ofa_mem_dma_handle,
8353 &request.data.ofa_memory_allocation.buffer_address);
2790cd4d 8354 put_unaligned_le32(buffer_length,
4fd22c13 8355 &request.data.ofa_memory_allocation.buffer_length);
4fd22c13
MR		 8356 }
8357
ae0c189d 8358 return pqi_submit_raid_request_synchronous(ctrl_info, &request.header, 0, NULL);
4fd22c13
MR		 8359}
8360
2790cd4d 8361static int pqi_ofa_ctrl_restart(struct pqi_ctrl_info *ctrl_info, unsigned int delay_secs)
4fd22c13 8362{
2790cd4d
KB		 8363 ssleep(delay_secs);
8364
4fd22c13
MR		 8365 return pqi_ctrl_init_resume(ctrl_info);
8366}
8367
3c50976f
KB		 8368static void pqi_perform_lockup_action(void)
8369{
8370 switch (pqi_lockup_action) {
8371 case PANIC:
8372 panic("FATAL: Smart Family Controller lockup detected");
8373 break;
8374 case REBOOT:
8375 emergency_restart();
8376 break;
8377 case NONE:
8378 default:
8379 break;
8380 }
8381}
8382
5f310425
KB		 8383static struct pqi_raid_error_info pqi_ctrl_offline_raid_error_info = {
8384 .data_out_result = PQI_DATA_IN_OUT_HARDWARE_ERROR,
8385 .status = SAM_STAT_CHECK_CONDITION,
8386};
8387
8388static void pqi_fail_all_outstanding_requests(struct pqi_ctrl_info *ctrl_info)
376fb880
KB		 8389{
8390 unsigned int i;
376fb880 8391 struct pqi_io_request *io_request;
376fb880
KB		 8392 struct scsi_cmnd *scmd;
8393
5f310425
KB		 8394 for (i = 0; i < ctrl_info->max_io_slots; i++) {
8395 io_request = &ctrl_info->io_request_pool[i];
8396 if (atomic_read(&io_request->refcount) == 0)
8397 continue;
376fb880 8398
5f310425
KB		 8399 scmd = io_request->scmd;
8400 if (scmd) {
8401 set_host_byte(scmd, DID_NO_CONNECT);
8402 } else {
8403 io_request->status = -ENXIO;
8404 io_request->error_info =
8405 &pqi_ctrl_offline_raid_error_info;
376fb880 8406 }
5f310425
KB		 8407
8408 io_request->io_complete_callback(io_request,
8409 io_request->context);
376fb880
KB		 8410 }
8411}
8412
5f310425 8413static void pqi_take_ctrl_offline_deferred(struct pqi_ctrl_info *ctrl_info)
376fb880 8414{
5f310425
KB		 8415 pqi_perform_lockup_action();
8416 pqi_stop_heartbeat_timer(ctrl_info);
8417 pqi_free_interrupts(ctrl_info);
8418 pqi_cancel_rescan_worker(ctrl_info);
8419 pqi_cancel_update_time_worker(ctrl_info);
8420 pqi_ctrl_wait_until_quiesced(ctrl_info);
8421 pqi_fail_all_outstanding_requests(ctrl_info);
5f310425
KB		 8422 pqi_ctrl_unblock_requests(ctrl_info);
8423}
8424
8425static void pqi_ctrl_offline_worker(struct work_struct *work)
8426{
8427 struct pqi_ctrl_info *ctrl_info;
8428
8429 ctrl_info = container_of(work, struct pqi_ctrl_info, ctrl_offline_work);
8430 pqi_take_ctrl_offline_deferred(ctrl_info);
376fb880
KB		 8431}
8432
8433static void pqi_take_ctrl_offline(struct pqi_ctrl_info *ctrl_info)
8434{
5f310425
KB		 8435 if (!ctrl_info->controller_online)
8436 return;
8437
376fb880 8438 ctrl_info->controller_online = false;
5f310425
KB		 8439 ctrl_info->pqi_mode_enabled = false;
8440 pqi_ctrl_block_requests(ctrl_info);
5a259e32
KB		 8441 if (!pqi_disable_ctrl_shutdown)
8442 sis_shutdown_ctrl(ctrl_info);
376fb880
KB		 8443 pci_disable_device(ctrl_info->pci_dev);
8444 dev_err(&ctrl_info->pci_dev->dev, "controller offline\n");
5f310425 8445 schedule_work(&ctrl_info->ctrl_offline_work);
376fb880
KB		 8446}
8447
d91d7820 8448static void pqi_print_ctrl_info(struct pci_dev *pci_dev,
6c223761
KB		 8449 const struct pci_device_id *id)
8450{
8451 char *ctrl_description;
8452
37b36847 8453 if (id->driver_data)
6c223761 8454 ctrl_description = (char *)id->driver_data;
37b36847 8455 else
6aa26b5a 8456 ctrl_description = "Microchip Smart Family Controller";
6c223761 8457
d91d7820 8458 dev_info(&pci_dev->dev, "%s found\n", ctrl_description);
6c223761
KB		 8459}
8460
d91d7820
KB		 8461static int pqi_pci_probe(struct pci_dev *pci_dev,
8462 const struct pci_device_id *id)
6c223761
KB		 8463{
8464 int rc;
62dc51fb 8465 int node, cp_node;
6c223761
KB		 8466 struct pqi_ctrl_info *ctrl_info;
8467
d91d7820 8468 pqi_print_ctrl_info(pci_dev, id);
6c223761
KB		 8469
8470 if (pqi_disable_device_id_wildcards &&
8471 id->subvendor == PCI_ANY_ID &&
8472 id->subdevice == PCI_ANY_ID) {
d91d7820 8473 dev_warn(&pci_dev->dev,
6c223761
KB		 8474 "controller not probed because device ID wildcards are disabled\n");
8475 return -ENODEV;
8476 }
8477
8478 if (id->subvendor == PCI_ANY_ID || id->subdevice == PCI_ANY_ID)
d91d7820 8479 dev_warn(&pci_dev->dev,
6c223761
KB		 8480 "controller device ID matched using wildcards\n");
8481
d91d7820 8482 node = dev_to_node(&pci_dev->dev);
62dc51fb
SB		 8483 if (node == NUMA_NO_NODE) {
8484 cp_node = cpu_to_node(0);
8485 if (cp_node == NUMA_NO_NODE)
8486 cp_node = 0;
8487 set_dev_node(&pci_dev->dev, cp_node);
8488 }
6c223761
KB		 8489
8490 ctrl_info = pqi_alloc_ctrl_info(node);
8491 if (!ctrl_info) {
d91d7820 8492 dev_err(&pci_dev->dev,
6c223761
KB		 8493 "failed to allocate controller info block\n");
8494 return -ENOMEM;
8495 }
8496
d91d7820 8497 ctrl_info->pci_dev = pci_dev;
6c223761
KB		 8498
8499 rc = pqi_pci_init(ctrl_info);
8500 if (rc)
8501 goto error;
8502
8503 rc = pqi_ctrl_init(ctrl_info);
8504 if (rc)
8505 goto error;
8506
8507 return 0;
8508
8509error:
8510 pqi_remove_ctrl(ctrl_info);
8511
8512 return rc;
8513}
8514
d91d7820 8515static void pqi_pci_remove(struct pci_dev *pci_dev)
6c223761
KB		 8516{
8517 struct pqi_ctrl_info *ctrl_info;
8518
d91d7820 8519 ctrl_info = pci_get_drvdata(pci_dev);
6c223761
KB		 8520 if (!ctrl_info)
8521 return;
8522
8523 pqi_remove_ctrl(ctrl_info);
8524}
8525
0530736e
KB		 8526static void pqi_crash_if_pending_command(struct pqi_ctrl_info *ctrl_info)
8527{
8528 unsigned int i;
8529 struct pqi_io_request *io_request;
8530 struct scsi_cmnd *scmd;
8531
8532 for (i = 0; i < ctrl_info->max_io_slots; i++) {
8533 io_request = &ctrl_info->io_request_pool[i];
8534 if (atomic_read(&io_request->refcount) == 0)
8535 continue;
8536 scmd = io_request->scmd;
8537 WARN_ON(scmd != NULL); /* IO command from SML */
8538 WARN_ON(scmd == NULL); /* Non-IO cmd or driver initiated*/
8539 }
8540}
8541
d91d7820 8542static void pqi_shutdown(struct pci_dev *pci_dev)
6c223761
KB		 8543{
8544 int rc;
8545 struct pqi_ctrl_info *ctrl_info;
8546
d91d7820 8547 ctrl_info = pci_get_drvdata(pci_dev);
0530736e
KB		 8548 if (!ctrl_info) {
8549 dev_err(&pci_dev->dev,
8550 "cache could not be flushed\n");
8551 return;
8552 }
8553
0530736e 8554 pqi_wait_until_ofa_finished(ctrl_info);
0530736e 8555
9fa82023 8556 pqi_scsi_block_requests(ctrl_info);
0530736e 8557 pqi_ctrl_block_device_reset(ctrl_info);
9fa82023
KB		 8558 pqi_ctrl_block_requests(ctrl_info);
8559 pqi_ctrl_wait_until_quiesced(ctrl_info);
6c223761
KB		 8560
8561 /*
8562 * Write all data in the controller's battery-backed cache to
8563 * storage.
8564 */
58322fe0 8565 rc = pqi_flush_cache(ctrl_info, SHUTDOWN);
0530736e
KB		 8566 if (rc)
8567 dev_err(&pci_dev->dev,
8568 "unable to flush controller cache\n");
8569
0530736e
KB		 8570 pqi_crash_if_pending_command(ctrl_info);
8571 pqi_reset(ctrl_info);
6c223761
KB		 8572}
8573
3c50976f
KB		 8574static void pqi_process_lockup_action_param(void)
8575{
8576 unsigned int i;
8577
8578 if (!pqi_lockup_action_param)
8579 return;
8580
8581 for (i = 0; i < ARRAY_SIZE(pqi_lockup_actions); i++) {
8582 if (strcmp(pqi_lockup_action_param,
8583 pqi_lockup_actions[i].name) == 0) {
8584 pqi_lockup_action = pqi_lockup_actions[i].action;
8585 return;
8586 }
8587 }
8588
8589 pr_warn("%s: invalid lockup action setting \"%s\" - supported settings: none, reboot, panic\n",
8590 DRIVER_NAME_SHORT, pqi_lockup_action_param);
8591}
8592
8593static void pqi_process_module_params(void)
8594{
8595 pqi_process_lockup_action_param();
8596}
8597
5c146686 8598static __maybe_unused int pqi_suspend(struct pci_dev *pci_dev, pm_message_t state)
061ef06a
KB		 8599{
8600 struct pqi_ctrl_info *ctrl_info;
8601
8602 ctrl_info = pci_get_drvdata(pci_dev);
8603
4fd22c13 8604 pqi_wait_until_ofa_finished(ctrl_info);
9fa82023
KB		 8605
8606 pqi_ctrl_block_scan(ctrl_info);
8607 pqi_scsi_block_requests(ctrl_info);
8608 pqi_ctrl_block_device_reset(ctrl_info);
061ef06a
KB		 8609 pqi_ctrl_block_requests(ctrl_info);
8610 pqi_ctrl_wait_until_quiesced(ctrl_info);
9fa82023 8611 pqi_flush_cache(ctrl_info, SUSPEND);
061ef06a
KB		 8612 pqi_stop_heartbeat_timer(ctrl_info);
8613
9fa82023
KB		 8614 pqi_crash_if_pending_command(ctrl_info);
8615
061ef06a
KB		 8616 if (state.event == PM_EVENT_FREEZE)
8617 return 0;
8618
8619 pci_save_state(pci_dev);
8620 pci_set_power_state(pci_dev, pci_choose_state(pci_dev, state));
8621
8622 ctrl_info->controller_online = false;
8623 ctrl_info->pqi_mode_enabled = false;
8624
8625 return 0;
8626}
8627
5c146686 8628static __maybe_unused int pqi_resume(struct pci_dev *pci_dev)
061ef06a
KB		 8629{
8630 int rc;
8631 struct pqi_ctrl_info *ctrl_info;
8632
8633 ctrl_info = pci_get_drvdata(pci_dev);
8634
8635 if (pci_dev->current_state != PCI_D0) {
8636 ctrl_info->max_hw_queue_index = 0;
8637 pqi_free_interrupts(ctrl_info);
8638 pqi_change_irq_mode(ctrl_info, IRQ_MODE_INTX);
8639 rc = request_irq(pci_irq_vector(pci_dev, 0), pqi_irq_handler,
8640 IRQF_SHARED, DRIVER_NAME_SHORT,
8641 &ctrl_info->queue_groups[0]);
8642 if (rc) {
8643 dev_err(&ctrl_info->pci_dev->dev,
8644 "irq %u init failed with error %d\n",
8645 pci_dev->irq, rc);
8646 return rc;
8647 }
43e97ef4 8648 pqi_ctrl_unblock_device_reset(ctrl_info);
061ef06a 8649 pqi_ctrl_unblock_requests(ctrl_info);
9fa82023 8650 pqi_scsi_unblock_requests(ctrl_info);
43e97ef4 8651 pqi_ctrl_unblock_scan(ctrl_info);
061ef06a
KB		 8652 return 0;
8653 }
8654
8655 pci_set_power_state(pci_dev, PCI_D0);
8656 pci_restore_state(pci_dev);
8657
43e97ef4
KB		 8658 pqi_ctrl_unblock_device_reset(ctrl_info);
8659 pqi_ctrl_unblock_requests(ctrl_info);
8660 pqi_scsi_unblock_requests(ctrl_info);
8661 pqi_ctrl_unblock_scan(ctrl_info);
8662
061ef06a
KB		 8663 return pqi_ctrl_init_resume(ctrl_info);
8664}
8665
6c223761
KB		 8666/* Define the PCI IDs for the controllers that we support. */
8667static const struct pci_device_id pqi_pci_id_table[] = {
b0f9408b
KB		 8668 {
8669 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
8670 0x105b, 0x1211)
8671 },
8672 {
8673 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
8674 0x105b, 0x1321)
8675 },
7eddabff
KB		 8676 {
8677 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
8678 0x152d, 0x8a22)
8679 },
8680 {
8681 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
8682 0x152d, 0x8a23)
8683 },
8684 {
8685 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
8686 0x152d, 0x8a24)
8687 },
8688 {
8689 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
8690 0x152d, 0x8a36)
8691 },
8692 {
8693 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
8694 0x152d, 0x8a37)
8695 },
75fbeacc
KB		 8696 {
8697 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
8698 0x193d, 0x8460)
8699 },
0595a0b4
AK		 8700 {
8701 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
8702 0x193d, 0x1104)
8703 },
8704 {
8705 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
8706 0x193d, 0x1105)
8707 },
8708 {
8709 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
8710 0x193d, 0x1106)
8711 },
8712 {
8713 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
8714 0x193d, 0x1107)
8715 },
d3af3f64
MR		 8716 {
8717 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
8718 0x193d, 0x1108)
8719 },
8720 {
8721 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
8722 0x193d, 0x1109)
8723 },
b0f9408b
KB		 8724 {
8725 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
8726 0x193d, 0x8460)
8727 },
8728 {
8729 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
8730 0x193d, 0x8461)
8731 },
84a77fef
MB		 8732 {
8733 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
8734 0x193d, 0xc460)
8735 },
8736 {
8737 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
8738 0x193d, 0xc461)
8739 },
b0f9408b
KB		 8740 {
8741 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
8742 0x193d, 0xf460)
8743 },
8744 {
8745 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
8746 0x193d, 0xf461)
8747 },
8748 {
8749 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
8750 0x1bd4, 0x0045)
8751 },
8752 {
8753 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
8754 0x1bd4, 0x0046)
8755 },
8756 {
8757 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
8758 0x1bd4, 0x0047)
8759 },
8760 {
8761 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
8762 0x1bd4, 0x0048)
8763 },
9f8d05fa
KB		 8764 {
8765 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
8766 0x1bd4, 0x004a)
8767 },
8768 {
8769 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
8770 0x1bd4, 0x004b)
8771 },
8772 {
8773 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
8774 0x1bd4, 0x004c)
8775 },
63a7956a
GW		 8776 {
8777 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
8778 0x1bd4, 0x004f)
8779 },
75fbeacc
KB		 8780 {
8781 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
8782 0x1bd4, 0x0051)
8783 },
8784 {
8785 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
8786 0x1bd4, 0x0052)
8787 },
8788 {
8789 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
8790 0x1bd4, 0x0053)
8791 },
8792 {
8793 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
8794 0x1bd4, 0x0054)
8795 },
c1b10475
AK		 8796 {
8797 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
8798 0x19e5, 0xd227)
8799 },
8800 {
8801 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
8802 0x19e5, 0xd228)
8803 },
8804 {
8805 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
8806 0x19e5, 0xd229)
8807 },
8808 {
8809 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
8810 0x19e5, 0xd22a)
8811 },
8812 {
8813 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
8814 0x19e5, 0xd22b)
8815 },
8816 {
8817 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
8818 0x19e5, 0xd22c)
8819 },
6c223761
KB		 8820 {
8821 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
8822 PCI_VENDOR_ID_ADAPTEC2, 0x0110)
8823 },
8824 {
8825 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
55790064 8826 PCI_VENDOR_ID_ADAPTEC2, 0x0608)
6c223761
KB		 8827 },
8828 {
8829 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
7eddabff 8830 PCI_VENDOR_ID_ADAPTEC2, 0x0800)
6c223761
KB		 8831 },
8832 {
8833 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
7eddabff 8834 PCI_VENDOR_ID_ADAPTEC2, 0x0801)
6c223761
KB		 8835 },
8836 {
8837 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
7eddabff 8838 PCI_VENDOR_ID_ADAPTEC2, 0x0802)
6c223761
KB		 8839 },
8840 {
8841 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
7eddabff 8842 PCI_VENDOR_ID_ADAPTEC2, 0x0803)
6c223761
KB		 8843 },
8844 {
8845 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
7eddabff 8846 PCI_VENDOR_ID_ADAPTEC2, 0x0804)
6c223761
KB		 8847 },
8848 {
8849 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
7eddabff 8850 PCI_VENDOR_ID_ADAPTEC2, 0x0805)
6c223761
KB		 8851 },
8852 {
8853 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
7eddabff 8854 PCI_VENDOR_ID_ADAPTEC2, 0x0806)
6c223761 8855 },
55790064
KB		 8856 {
8857 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
8858 PCI_VENDOR_ID_ADAPTEC2, 0x0807)
8859 },
63a7956a
GW		 8860 {
8861 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
8862 PCI_VENDOR_ID_ADAPTEC2, 0x0808)
8863 },
8864 {
8865 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
8866 PCI_VENDOR_ID_ADAPTEC2, 0x0809)
8867 },
3af06083
MR		 8868 {
8869 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
8870 PCI_VENDOR_ID_ADAPTEC2, 0x080a)
8871 },
6c223761
KB		 8872 {
8873 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
7eddabff 8874 PCI_VENDOR_ID_ADAPTEC2, 0x0900)
6c223761
KB		 8875 },
8876 {
8877 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
7eddabff 8878 PCI_VENDOR_ID_ADAPTEC2, 0x0901)
6c223761
KB		 8879 },
8880 {
8881 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
7eddabff 8882 PCI_VENDOR_ID_ADAPTEC2, 0x0902)
6c223761
KB		 8883 },
8884 {
8885 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
7eddabff 8886 PCI_VENDOR_ID_ADAPTEC2, 0x0903)
6c223761
KB		 8887 },
8888 {
8889 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
7eddabff 8890 PCI_VENDOR_ID_ADAPTEC2, 0x0904)
6c223761
KB		 8891 },
8892 {
8893 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
7eddabff 8894 PCI_VENDOR_ID_ADAPTEC2, 0x0905)
6c223761
KB		 8895 },
8896 {
8897 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
7eddabff 8898 PCI_VENDOR_ID_ADAPTEC2, 0x0906)
6c223761
KB		 8899 },
8900 {
8901 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
7eddabff 8902 PCI_VENDOR_ID_ADAPTEC2, 0x0907)
6c223761
KB		 8903 },
8904 {
8905 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
7eddabff 8906 PCI_VENDOR_ID_ADAPTEC2, 0x0908)
6c223761 8907 },
55790064
KB		 8908 {
8909 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
8910 PCI_VENDOR_ID_ADAPTEC2, 0x090a)
8911 },
6c223761
KB		 8912 {
8913 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
7eddabff 8914 PCI_VENDOR_ID_ADAPTEC2, 0x1200)
6c223761
KB		 8915 },
8916 {
8917 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
7eddabff 8918 PCI_VENDOR_ID_ADAPTEC2, 0x1201)
6c223761
KB		 8919 },
8920 {
8921 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
7eddabff 8922 PCI_VENDOR_ID_ADAPTEC2, 0x1202)
6c223761
KB		 8923 },
8924 {
8925 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
7eddabff 8926 PCI_VENDOR_ID_ADAPTEC2, 0x1280)
6c223761
KB		 8927 },
8928 {
8929 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
7eddabff 8930 PCI_VENDOR_ID_ADAPTEC2, 0x1281)
6c223761 8931 },
b0f9408b
KB		 8932 {
8933 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
8934 PCI_VENDOR_ID_ADAPTEC2, 0x1282)
8935 },
6c223761
KB		 8936 {
8937 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
7eddabff 8938 PCI_VENDOR_ID_ADAPTEC2, 0x1300)
6c223761
KB		 8939 },
8940 {
8941 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
7eddabff 8942 PCI_VENDOR_ID_ADAPTEC2, 0x1301)
6c223761 8943 },
bd809e8d
KB		 8944 {
8945 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
8946 PCI_VENDOR_ID_ADAPTEC2, 0x1302)
8947 },
8948 {
8949 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
8950 PCI_VENDOR_ID_ADAPTEC2, 0x1303)
8951 },
6c223761
KB		 8952 {
8953 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
7eddabff
KB		 8954 PCI_VENDOR_ID_ADAPTEC2, 0x1380)
8955 },
75fbeacc
KB		 8956 {
8957 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
8958 PCI_VENDOR_ID_ADAPTEC2, 0x1400)
8959 },
8960 {
8961 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
8962 PCI_VENDOR_ID_ADAPTEC2, 0x1402)
8963 },
8964 {
8965 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
8966 PCI_VENDOR_ID_ADAPTEC2, 0x1410)
8967 },
8968 {
8969 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
8970 PCI_VENDOR_ID_ADAPTEC2, 0x1411)
8971 },
8972 {
8973 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
8974 PCI_VENDOR_ID_ADAPTEC2, 0x1412)
8975 },
8976 {
8977 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
8978 PCI_VENDOR_ID_ADAPTEC2, 0x1420)
8979 },
8980 {
8981 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
8982 PCI_VENDOR_ID_ADAPTEC2, 0x1430)
8983 },
8984 {
8985 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
8986 PCI_VENDOR_ID_ADAPTEC2, 0x1440)
8987 },
8988 {
8989 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
8990 PCI_VENDOR_ID_ADAPTEC2, 0x1441)
8991 },
8992 {
8993 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
8994 PCI_VENDOR_ID_ADAPTEC2, 0x1450)
8995 },
8996 {
8997 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
8998 PCI_VENDOR_ID_ADAPTEC2, 0x1452)
8999 },
9000 {
9001 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
9002 PCI_VENDOR_ID_ADAPTEC2, 0x1460)
9003 },
9004 {
9005 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
9006 PCI_VENDOR_ID_ADAPTEC2, 0x1461)
9007 },
9008 {
9009 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
9010 PCI_VENDOR_ID_ADAPTEC2, 0x1462)
9011 },
9012 {
9013 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
9014 PCI_VENDOR_ID_ADAPTEC2, 0x1470)
9015 },
9016 {
9017 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
9018 PCI_VENDOR_ID_ADAPTEC2, 0x1471)
9019 },
9020 {
9021 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
9022 PCI_VENDOR_ID_ADAPTEC2, 0x1472)
9023 },
9024 {
9025 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
9026 PCI_VENDOR_ID_ADAPTEC2, 0x1480)
9027 },
9028 {
9029 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
9030 PCI_VENDOR_ID_ADAPTEC2, 0x1490)
9031 },
9032 {
9033 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
9034 PCI_VENDOR_ID_ADAPTEC2, 0x1491)
9035 },
9036 {
9037 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
9038 PCI_VENDOR_ID_ADAPTEC2, 0x14a0)
9039 },
9040 {
9041 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
9042 PCI_VENDOR_ID_ADAPTEC2, 0x14a1)
9043 },
9044 {
9045 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
9046 PCI_VENDOR_ID_ADAPTEC2, 0x14b0)
9047 },
9048 {
9049 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
9050 PCI_VENDOR_ID_ADAPTEC2, 0x14b1)
9051 },
9052 {
9053 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
9054 PCI_VENDOR_ID_ADAPTEC2, 0x14c0)
9055 },
9056 {
9057 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
9058 PCI_VENDOR_ID_ADAPTEC2, 0x14c1)
9059 },
9060 {
9061 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
9062 PCI_VENDOR_ID_ADAPTEC2, 0x14d0)
9063 },
9064 {
9065 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
9066 PCI_VENDOR_ID_ADAPTEC2, 0x14e0)
9067 },
9068 {
9069 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
9070 PCI_VENDOR_ID_ADAPTEC2, 0x14f0)
9071 },
9f8d05fa
KB		 9072 {
9073 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
9074 PCI_VENDOR_ID_ADVANTECH, 0x8312)
9075 },
55790064
KB		 9076 {
9077 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
9078 PCI_VENDOR_ID_DELL, 0x1fe0)
9079 },
7eddabff
KB		 9080 {
9081 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
9082 PCI_VENDOR_ID_HP, 0x0600)
9083 },
9084 {
9085 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
9086 PCI_VENDOR_ID_HP, 0x0601)
9087 },
9088 {
9089 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
9090 PCI_VENDOR_ID_HP, 0x0602)
9091 },
9092 {
9093 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
9094 PCI_VENDOR_ID_HP, 0x0603)
9095 },
9096 {
9097 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
55790064 9098 PCI_VENDOR_ID_HP, 0x0609)
7eddabff
KB		 9099 },
9100 {
9101 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
9102 PCI_VENDOR_ID_HP, 0x0650)
9103 },
9104 {
9105 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
9106 PCI_VENDOR_ID_HP, 0x0651)
9107 },
9108 {
9109 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
9110 PCI_VENDOR_ID_HP, 0x0652)
9111 },
9112 {
9113 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
9114 PCI_VENDOR_ID_HP, 0x0653)
9115 },
9116 {
9117 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
9118 PCI_VENDOR_ID_HP, 0x0654)
9119 },
9120 {
9121 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
9122 PCI_VENDOR_ID_HP, 0x0655)
9123 },
7eddabff
KB		 9124 {
9125 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
9126 PCI_VENDOR_ID_HP, 0x0700)
9127 },
9128 {
9129 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
9130 PCI_VENDOR_ID_HP, 0x0701)
6c223761
KB		 9131 },
9132 {
9133 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
9134 PCI_VENDOR_ID_HP, 0x1001)
9135 },
75fbeacc
KB		 9136 {
9137 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
9138 PCI_VENDOR_ID_HP, 0x1002)
9139 },
6c223761
KB		 9140 {
9141 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
9142 PCI_VENDOR_ID_HP, 0x1100)
9143 },
9144 {
9145 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
9146 PCI_VENDOR_ID_HP, 0x1101)
9147 },
75fbeacc
KB		 9148 {
9149 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
9150 0x1590, 0x0294)
9151 },
9152 {
9153 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
9154 0x1590, 0x02db)
9155 },
9156 {
9157 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
9158 0x1590, 0x02dc)
9159 },
9160 {
9161 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
9162 0x1590, 0x032e)
9163 },
8bdb3b9c
GW		 9164 {
9165 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
9166 0x1d8d, 0x0800)
9167 },
9168 {
9169 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
9170 0x1d8d, 0x0908)
9171 },
9172 {
9173 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
9174 0x1d8d, 0x0806)
9175 },
9176 {
9177 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
9178 0x1d8d, 0x0916)
9179 },
71ecc60d
GW		 9180 {
9181 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
9182 PCI_VENDOR_ID_GIGABYTE, 0x1000)
9183 },
e326b97c
MM		 9184 {
9185 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
9186 0x1dfc, 0x3161)
9187 },
09d9968a
B		 9188 {
9189 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
9190 0x1cf2, 0x5445)
9191 },
9192 {
9193 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
9194 0x1cf2, 0x5446)
9195 },
9196 {
9197 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
9198 0x1cf2, 0x5447)
9199 },
9200 {
9201 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
9202 0x1cf2, 0x0b27)
9203 },
9204 {
9205 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
9206 0x1cf2, 0x0b29)
9207 },
9208 {
9209 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
9210 0x1cf2, 0x0b45)
9211 },
6c223761
KB		 9212 {
9213 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
9214 PCI_ANY_ID, PCI_ANY_ID)
9215 },
9216 { 0 }
9217};
9218
9219MODULE_DEVICE_TABLE(pci, pqi_pci_id_table);
9220
9221static struct pci_driver pqi_pci_driver = {
9222 .name = DRIVER_NAME_SHORT,
9223 .id_table = pqi_pci_id_table,
9224 .probe = pqi_pci_probe,
9225 .remove = pqi_pci_remove,
9226 .shutdown = pqi_shutdown,
061ef06a
KB		 9227#if defined(CONFIG_PM)
9228 .suspend = pqi_suspend,
9229 .resume = pqi_resume,
9230#endif
6c223761
KB		 9231};
9232
9233static int __init pqi_init(void)
9234{
9235 int rc;
9236
9237 pr_info(DRIVER_NAME "\n");
9238
8b664fef 9239 pqi_sas_transport_template = sas_attach_transport(&pqi_sas_transport_functions);
6c223761
KB		 9240 if (!pqi_sas_transport_template)
9241 return -ENODEV;
9242
3c50976f
KB		 9243 pqi_process_module_params();
9244
6c223761
KB		 9245 rc = pci_register_driver(&pqi_pci_driver);
9246 if (rc)
9247 sas_release_transport(pqi_sas_transport_template);
9248
9249 return rc;
9250}
9251
9252static void __exit pqi_cleanup(void)
9253{
9254 pci_unregister_driver(&pqi_pci_driver);
9255 sas_release_transport(pqi_sas_transport_template);
9256}
9257
9258module_init(pqi_init);
9259module_exit(pqi_cleanup);
9260
9261static void __attribute__((unused)) verify_structures(void)
9262{
9263 BUILD_BUG_ON(offsetof(struct pqi_ctrl_registers,
9264 sis_host_to_ctrl_doorbell) != 0x20);
9265 BUILD_BUG_ON(offsetof(struct pqi_ctrl_registers,
9266 sis_interrupt_mask) != 0x34);
9267 BUILD_BUG_ON(offsetof(struct pqi_ctrl_registers,
9268 sis_ctrl_to_host_doorbell) != 0x9c);
9269 BUILD_BUG_ON(offsetof(struct pqi_ctrl_registers,
9270 sis_ctrl_to_host_doorbell_clear) != 0xa0);
ff6abb73
KB		 9271 BUILD_BUG_ON(offsetof(struct pqi_ctrl_registers,
9272 sis_driver_scratch) != 0xb0);
2708a256
KB		 9273 BUILD_BUG_ON(offsetof(struct pqi_ctrl_registers,
9274 sis_product_identifier) != 0xb4);
6c223761
KB		 9275 BUILD_BUG_ON(offsetof(struct pqi_ctrl_registers,
9276 sis_firmware_status) != 0xbc);
9277 BUILD_BUG_ON(offsetof(struct pqi_ctrl_registers,
9278 sis_mailbox) != 0x1000);
9279 BUILD_BUG_ON(offsetof(struct pqi_ctrl_registers,
9280 pqi_registers) != 0x4000);
9281
9282 BUILD_BUG_ON(offsetof(struct pqi_iu_header,
9283 iu_type) != 0x0);
9284 BUILD_BUG_ON(offsetof(struct pqi_iu_header,
9285 iu_length) != 0x2);
9286 BUILD_BUG_ON(offsetof(struct pqi_iu_header,
9287 response_queue_id) != 0x4);
9288 BUILD_BUG_ON(offsetof(struct pqi_iu_header,
ae0c189d 9289 driver_flags) != 0x6);
6c223761
KB		 9290 BUILD_BUG_ON(sizeof(struct pqi_iu_header) != 0x8);
9291
9292 BUILD_BUG_ON(offsetof(struct pqi_aio_error_info,
9293 status) != 0x0);
9294 BUILD_BUG_ON(offsetof(struct pqi_aio_error_info,
9295 service_response) != 0x1);
9296 BUILD_BUG_ON(offsetof(struct pqi_aio_error_info,
9297 data_present) != 0x2);
9298 BUILD_BUG_ON(offsetof(struct pqi_aio_error_info,
9299 reserved) != 0x3);
9300 BUILD_BUG_ON(offsetof(struct pqi_aio_error_info,
9301 residual_count) != 0x4);
9302 BUILD_BUG_ON(offsetof(struct pqi_aio_error_info,
9303 data_length) != 0x8);
9304 BUILD_BUG_ON(offsetof(struct pqi_aio_error_info,
9305 reserved1) != 0xa);
9306 BUILD_BUG_ON(offsetof(struct pqi_aio_error_info,
9307 data) != 0xc);
9308 BUILD_BUG_ON(sizeof(struct pqi_aio_error_info) != 0x10c);
9309
9310 BUILD_BUG_ON(offsetof(struct pqi_raid_error_info,
9311 data_in_result) != 0x0);
9312 BUILD_BUG_ON(offsetof(struct pqi_raid_error_info,
9313 data_out_result) != 0x1);
9314 BUILD_BUG_ON(offsetof(struct pqi_raid_error_info,
9315 reserved) != 0x2);
9316 BUILD_BUG_ON(offsetof(struct pqi_raid_error_info,
9317 status) != 0x5);
9318 BUILD_BUG_ON(offsetof(struct pqi_raid_error_info,
9319 status_qualifier) != 0x6);
9320 BUILD_BUG_ON(offsetof(struct pqi_raid_error_info,
9321 sense_data_length) != 0x8);
9322 BUILD_BUG_ON(offsetof(struct pqi_raid_error_info,
9323 response_data_length) != 0xa);
9324 BUILD_BUG_ON(offsetof(struct pqi_raid_error_info,
9325 data_in_transferred) != 0xc);
9326 BUILD_BUG_ON(offsetof(struct pqi_raid_error_info,
9327 data_out_transferred) != 0x10);
9328 BUILD_BUG_ON(offsetof(struct pqi_raid_error_info,
9329 data) != 0x14);
9330 BUILD_BUG_ON(sizeof(struct pqi_raid_error_info) != 0x114);
9331
9332 BUILD_BUG_ON(offsetof(struct pqi_device_registers,
9333 signature) != 0x0);
9334 BUILD_BUG_ON(offsetof(struct pqi_device_registers,
9335 function_and_status_code) != 0x8);
9336 BUILD_BUG_ON(offsetof(struct pqi_device_registers,
9337 max_admin_iq_elements) != 0x10);
9338 BUILD_BUG_ON(offsetof(struct pqi_device_registers,
9339 max_admin_oq_elements) != 0x11);
9340 BUILD_BUG_ON(offsetof(struct pqi_device_registers,
9341 admin_iq_element_length) != 0x12);
9342 BUILD_BUG_ON(offsetof(struct pqi_device_registers,
9343 admin_oq_element_length) != 0x13);
9344 BUILD_BUG_ON(offsetof(struct pqi_device_registers,
9345 max_reset_timeout) != 0x14);
9346 BUILD_BUG_ON(offsetof(struct pqi_device_registers,
9347 legacy_intx_status) != 0x18);
9348 BUILD_BUG_ON(offsetof(struct pqi_device_registers,
9349 legacy_intx_mask_set) != 0x1c);
9350 BUILD_BUG_ON(offsetof(struct pqi_device_registers,
9351 legacy_intx_mask_clear) != 0x20);
9352 BUILD_BUG_ON(offsetof(struct pqi_device_registers,
9353 device_status) != 0x40);
9354 BUILD_BUG_ON(offsetof(struct pqi_device_registers,
9355 admin_iq_pi_offset) != 0x48);
9356 BUILD_BUG_ON(offsetof(struct pqi_device_registers,
9357 admin_oq_ci_offset) != 0x50);
9358 BUILD_BUG_ON(offsetof(struct pqi_device_registers,
9359 admin_iq_element_array_addr) != 0x58);
9360 BUILD_BUG_ON(offsetof(struct pqi_device_registers,
9361 admin_oq_element_array_addr) != 0x60);
9362 BUILD_BUG_ON(offsetof(struct pqi_device_registers,
9363 admin_iq_ci_addr) != 0x68);
9364 BUILD_BUG_ON(offsetof(struct pqi_device_registers,
9365 admin_oq_pi_addr) != 0x70);
9366 BUILD_BUG_ON(offsetof(struct pqi_device_registers,
9367 admin_iq_num_elements) != 0x78);
9368 BUILD_BUG_ON(offsetof(struct pqi_device_registers,
9369 admin_oq_num_elements) != 0x79);
9370 BUILD_BUG_ON(offsetof(struct pqi_device_registers,
9371 admin_queue_int_msg_num) != 0x7a);
9372 BUILD_BUG_ON(offsetof(struct pqi_device_registers,
9373 device_error) != 0x80);
9374 BUILD_BUG_ON(offsetof(struct pqi_device_registers,
9375 error_details) != 0x88);
9376 BUILD_BUG_ON(offsetof(struct pqi_device_registers,
9377 device_reset) != 0x90);
9378 BUILD_BUG_ON(offsetof(struct pqi_device_registers,
9379 power_action) != 0x94);
9380 BUILD_BUG_ON(sizeof(struct pqi_device_registers) != 0x100);
9381
9382 BUILD_BUG_ON(offsetof(struct pqi_general_admin_request,
9383 header.iu_type) != 0);
9384 BUILD_BUG_ON(offsetof(struct pqi_general_admin_request,
9385 header.iu_length) != 2);
9386 BUILD_BUG_ON(offsetof(struct pqi_general_admin_request,
ae0c189d 9387 header.driver_flags) != 6);
6c223761
KB		 9388 BUILD_BUG_ON(offsetof(struct pqi_general_admin_request,
9389 request_id) != 8);
9390 BUILD_BUG_ON(offsetof(struct pqi_general_admin_request,
9391 function_code) != 10);
9392 BUILD_BUG_ON(offsetof(struct pqi_general_admin_request,
9393 data.report_device_capability.buffer_length) != 44);
9394 BUILD_BUG_ON(offsetof(struct pqi_general_admin_request,
9395 data.report_device_capability.sg_descriptor) != 48);
9396 BUILD_BUG_ON(offsetof(struct pqi_general_admin_request,
9397 data.create_operational_iq.queue_id) != 12);
9398 BUILD_BUG_ON(offsetof(struct pqi_general_admin_request,
9399 data.create_operational_iq.element_array_addr) != 16);
9400 BUILD_BUG_ON(offsetof(struct pqi_general_admin_request,
9401 data.create_operational_iq.ci_addr) != 24);
9402 BUILD_BUG_ON(offsetof(struct pqi_general_admin_request,
9403 data.create_operational_iq.num_elements) != 32);
9404 BUILD_BUG_ON(offsetof(struct pqi_general_admin_request,
9405 data.create_operational_iq.element_length) != 34);
9406 BUILD_BUG_ON(offsetof(struct pqi_general_admin_request,
9407 data.create_operational_iq.queue_protocol) != 36);
9408 BUILD_BUG_ON(offsetof(struct pqi_general_admin_request,
9409 data.create_operational_oq.queue_id) != 12);
9410 BUILD_BUG_ON(offsetof(struct pqi_general_admin_request,
9411 data.create_operational_oq.element_array_addr) != 16);
9412 BUILD_BUG_ON(offsetof(struct pqi_general_admin_request,
9413 data.create_operational_oq.pi_addr) != 24);
9414 BUILD_BUG_ON(offsetof(struct pqi_general_admin_request,
9415 data.create_operational_oq.num_elements) != 32);
9416 BUILD_BUG_ON(offsetof(struct pqi_general_admin_request,
9417 data.create_operational_oq.element_length) != 34);
9418 BUILD_BUG_ON(offsetof(struct pqi_general_admin_request,
9419 data.create_operational_oq.queue_protocol) != 36);
9420 BUILD_BUG_ON(offsetof(struct pqi_general_admin_request,
9421 data.create_operational_oq.int_msg_num) != 40);
9422 BUILD_BUG_ON(offsetof(struct pqi_general_admin_request,
9423 data.create_operational_oq.coalescing_count) != 42);
9424 BUILD_BUG_ON(offsetof(struct pqi_general_admin_request,
9425 data.create_operational_oq.min_coalescing_time) != 44);
9426 BUILD_BUG_ON(offsetof(struct pqi_general_admin_request,
9427 data.create_operational_oq.max_coalescing_time) != 48);
9428 BUILD_BUG_ON(offsetof(struct pqi_general_admin_request,
9429 data.delete_operational_queue.queue_id) != 12);
9430 BUILD_BUG_ON(sizeof(struct pqi_general_admin_request) != 64);
c593642c 9431 BUILD_BUG_ON(sizeof_field(struct pqi_general_admin_request,
6c223761 9432 data.create_operational_iq) != 64 - 11);
c593642c 9433 BUILD_BUG_ON(sizeof_field(struct pqi_general_admin_request,
6c223761 9434 data.create_operational_oq) != 64 - 11);
c593642c 9435 BUILD_BUG_ON(sizeof_field(struct pqi_general_admin_request,
6c223761
KB		 9436 data.delete_operational_queue) != 64 - 11);
9437
9438 BUILD_BUG_ON(offsetof(struct pqi_general_admin_response,
9439 header.iu_type) != 0);
9440 BUILD_BUG_ON(offsetof(struct pqi_general_admin_response,
9441 header.iu_length) != 2);
9442 BUILD_BUG_ON(offsetof(struct pqi_general_admin_response,
ae0c189d 9443 header.driver_flags) != 6);
6c223761
KB		 9444 BUILD_BUG_ON(offsetof(struct pqi_general_admin_response,
9445 request_id) != 8);
9446 BUILD_BUG_ON(offsetof(struct pqi_general_admin_response,
9447 function_code) != 10);
9448 BUILD_BUG_ON(offsetof(struct pqi_general_admin_response,
9449 status) != 11);
9450 BUILD_BUG_ON(offsetof(struct pqi_general_admin_response,
9451 data.create_operational_iq.status_descriptor) != 12);
9452 BUILD_BUG_ON(offsetof(struct pqi_general_admin_response,
9453 data.create_operational_iq.iq_pi_offset) != 16);
9454 BUILD_BUG_ON(offsetof(struct pqi_general_admin_response,
9455 data.create_operational_oq.status_descriptor) != 12);
9456 BUILD_BUG_ON(offsetof(struct pqi_general_admin_response,
9457 data.create_operational_oq.oq_ci_offset) != 16);
9458 BUILD_BUG_ON(sizeof(struct pqi_general_admin_response) != 64);
9459
9460 BUILD_BUG_ON(offsetof(struct pqi_raid_path_request,
9461 header.iu_type) != 0);
9462 BUILD_BUG_ON(offsetof(struct pqi_raid_path_request,
9463 header.iu_length) != 2);
9464 BUILD_BUG_ON(offsetof(struct pqi_raid_path_request,
9465 header.response_queue_id) != 4);
9466 BUILD_BUG_ON(offsetof(struct pqi_raid_path_request,
ae0c189d 9467 header.driver_flags) != 6);
6c223761
KB		 9468 BUILD_BUG_ON(offsetof(struct pqi_raid_path_request,
9469 request_id) != 8);
9470 BUILD_BUG_ON(offsetof(struct pqi_raid_path_request,
9471 nexus_id) != 10);
9472 BUILD_BUG_ON(offsetof(struct pqi_raid_path_request,
9473 buffer_length) != 12);
9474 BUILD_BUG_ON(offsetof(struct pqi_raid_path_request,
9475 lun_number) != 16);
9476 BUILD_BUG_ON(offsetof(struct pqi_raid_path_request,
9477 protocol_specific) != 24);
9478 BUILD_BUG_ON(offsetof(struct pqi_raid_path_request,
9479 error_index) != 27);
9480 BUILD_BUG_ON(offsetof(struct pqi_raid_path_request,
9481 cdb) != 32);
21432010 9482 BUILD_BUG_ON(offsetof(struct pqi_raid_path_request,
9483 timeout) != 60);
6c223761
KB		 9484 BUILD_BUG_ON(offsetof(struct pqi_raid_path_request,
9485 sg_descriptors) != 64);
9486 BUILD_BUG_ON(sizeof(struct pqi_raid_path_request) !=
9487 PQI_OPERATIONAL_IQ_ELEMENT_LENGTH);
9488
9489 BUILD_BUG_ON(offsetof(struct pqi_aio_path_request,
9490 header.iu_type) != 0);
9491 BUILD_BUG_ON(offsetof(struct pqi_aio_path_request,
9492 header.iu_length) != 2);
9493 BUILD_BUG_ON(offsetof(struct pqi_aio_path_request,
9494 header.response_queue_id) != 4);
9495 BUILD_BUG_ON(offsetof(struct pqi_aio_path_request,
ae0c189d 9496 header.driver_flags) != 6);
6c223761
KB		 9497 BUILD_BUG_ON(offsetof(struct pqi_aio_path_request,
9498 request_id) != 8);
9499 BUILD_BUG_ON(offsetof(struct pqi_aio_path_request,
9500 nexus_id) != 12);
9501 BUILD_BUG_ON(offsetof(struct pqi_aio_path_request,
9502 buffer_length) != 16);
9503 BUILD_BUG_ON(offsetof(struct pqi_aio_path_request,
9504 data_encryption_key_index) != 22);
9505 BUILD_BUG_ON(offsetof(struct pqi_aio_path_request,
9506 encrypt_tweak_lower) != 24);
9507 BUILD_BUG_ON(offsetof(struct pqi_aio_path_request,
9508 encrypt_tweak_upper) != 28);
9509 BUILD_BUG_ON(offsetof(struct pqi_aio_path_request,
9510 cdb) != 32);
9511 BUILD_BUG_ON(offsetof(struct pqi_aio_path_request,
9512 error_index) != 48);
9513 BUILD_BUG_ON(offsetof(struct pqi_aio_path_request,
9514 num_sg_descriptors) != 50);
9515 BUILD_BUG_ON(offsetof(struct pqi_aio_path_request,
9516 cdb_length) != 51);
9517 BUILD_BUG_ON(offsetof(struct pqi_aio_path_request,
9518 lun_number) != 52);
9519 BUILD_BUG_ON(offsetof(struct pqi_aio_path_request,
9520 sg_descriptors) != 64);
9521 BUILD_BUG_ON(sizeof(struct pqi_aio_path_request) !=
9522 PQI_OPERATIONAL_IQ_ELEMENT_LENGTH);
9523
9524 BUILD_BUG_ON(offsetof(struct pqi_io_response,
9525 header.iu_type) != 0);
9526 BUILD_BUG_ON(offsetof(struct pqi_io_response,
9527 header.iu_length) != 2);
9528 BUILD_BUG_ON(offsetof(struct pqi_io_response,
9529 request_id) != 8);
9530 BUILD_BUG_ON(offsetof(struct pqi_io_response,
9531 error_index) != 10);
9532
9533 BUILD_BUG_ON(offsetof(struct pqi_general_management_request,
9534 header.iu_type) != 0);
9535 BUILD_BUG_ON(offsetof(struct pqi_general_management_request,
9536 header.iu_length) != 2);
9537 BUILD_BUG_ON(offsetof(struct pqi_general_management_request,
9538 header.response_queue_id) != 4);
9539 BUILD_BUG_ON(offsetof(struct pqi_general_management_request,
9540 request_id) != 8);
9541 BUILD_BUG_ON(offsetof(struct pqi_general_management_request,
9542 data.report_event_configuration.buffer_length) != 12);
9543 BUILD_BUG_ON(offsetof(struct pqi_general_management_request,
9544 data.report_event_configuration.sg_descriptors) != 16);
9545 BUILD_BUG_ON(offsetof(struct pqi_general_management_request,
9546 data.set_event_configuration.global_event_oq_id) != 10);
9547 BUILD_BUG_ON(offsetof(struct pqi_general_management_request,
9548 data.set_event_configuration.buffer_length) != 12);
9549 BUILD_BUG_ON(offsetof(struct pqi_general_management_request,
9550 data.set_event_configuration.sg_descriptors) != 16);
9551
9552 BUILD_BUG_ON(offsetof(struct pqi_iu_layer_descriptor,
9553 max_inbound_iu_length) != 6);
9554 BUILD_BUG_ON(offsetof(struct pqi_iu_layer_descriptor,
9555 max_outbound_iu_length) != 14);
9556 BUILD_BUG_ON(sizeof(struct pqi_iu_layer_descriptor) != 16);
9557
9558 BUILD_BUG_ON(offsetof(struct pqi_device_capability,
9559 data_length) != 0);
9560 BUILD_BUG_ON(offsetof(struct pqi_device_capability,
9561 iq_arbitration_priority_support_bitmask) != 8);
9562 BUILD_BUG_ON(offsetof(struct pqi_device_capability,
9563 maximum_aw_a) != 9);
9564 BUILD_BUG_ON(offsetof(struct pqi_device_capability,
9565 maximum_aw_b) != 10);
9566 BUILD_BUG_ON(offsetof(struct pqi_device_capability,
9567 maximum_aw_c) != 11);
9568 BUILD_BUG_ON(offsetof(struct pqi_device_capability,
9569 max_inbound_queues) != 16);
9570 BUILD_BUG_ON(offsetof(struct pqi_device_capability,
9571 max_elements_per_iq) != 18);
9572 BUILD_BUG_ON(offsetof(struct pqi_device_capability,
9573 max_iq_element_length) != 24);
9574 BUILD_BUG_ON(offsetof(struct pqi_device_capability,
9575 min_iq_element_length) != 26);
9576 BUILD_BUG_ON(offsetof(struct pqi_device_capability,
9577 max_outbound_queues) != 30);
9578 BUILD_BUG_ON(offsetof(struct pqi_device_capability,
9579 max_elements_per_oq) != 32);
9580 BUILD_BUG_ON(offsetof(struct pqi_device_capability,
9581 intr_coalescing_time_granularity) != 34);
9582 BUILD_BUG_ON(offsetof(struct pqi_device_capability,
9583 max_oq_element_length) != 36);
9584 BUILD_BUG_ON(offsetof(struct pqi_device_capability,
9585 min_oq_element_length) != 38);
9586 BUILD_BUG_ON(offsetof(struct pqi_device_capability,
9587 iu_layer_descriptors) != 64);
9588 BUILD_BUG_ON(sizeof(struct pqi_device_capability) != 576);
9589
9590 BUILD_BUG_ON(offsetof(struct pqi_event_descriptor,
9591 event_type) != 0);
9592 BUILD_BUG_ON(offsetof(struct pqi_event_descriptor,
9593 oq_id) != 2);
9594 BUILD_BUG_ON(sizeof(struct pqi_event_descriptor) != 4);
9595
9596 BUILD_BUG_ON(offsetof(struct pqi_event_config,
9597 num_event_descriptors) != 2);
9598 BUILD_BUG_ON(offsetof(struct pqi_event_config,
9599 descriptors) != 4);
9600
061ef06a
KB		 9601 BUILD_BUG_ON(PQI_NUM_SUPPORTED_EVENTS !=
9602 ARRAY_SIZE(pqi_supported_event_types));
9603
6c223761
KB		 9604 BUILD_BUG_ON(offsetof(struct pqi_event_response,
9605 header.iu_type) != 0);
9606 BUILD_BUG_ON(offsetof(struct pqi_event_response,
9607 header.iu_length) != 2);
9608 BUILD_BUG_ON(offsetof(struct pqi_event_response,
9609 event_type) != 8);
9610 BUILD_BUG_ON(offsetof(struct pqi_event_response,
9611 event_id) != 10);
9612 BUILD_BUG_ON(offsetof(struct pqi_event_response,
9613 additional_event_id) != 12);
9614 BUILD_BUG_ON(offsetof(struct pqi_event_response,
9615 data) != 16);
9616 BUILD_BUG_ON(sizeof(struct pqi_event_response) != 32);
9617
9618 BUILD_BUG_ON(offsetof(struct pqi_event_acknowledge_request,
9619 header.iu_type) != 0);
9620 BUILD_BUG_ON(offsetof(struct pqi_event_acknowledge_request,
9621 header.iu_length) != 2);
9622 BUILD_BUG_ON(offsetof(struct pqi_event_acknowledge_request,
9623 event_type) != 8);
9624 BUILD_BUG_ON(offsetof(struct pqi_event_acknowledge_request,
9625 event_id) != 10);
9626 BUILD_BUG_ON(offsetof(struct pqi_event_acknowledge_request,
9627 additional_event_id) != 12);
9628 BUILD_BUG_ON(sizeof(struct pqi_event_acknowledge_request) != 16);
9629
9630 BUILD_BUG_ON(offsetof(struct pqi_task_management_request,
9631 header.iu_type) != 0);
9632 BUILD_BUG_ON(offsetof(struct pqi_task_management_request,
9633 header.iu_length) != 2);
9634 BUILD_BUG_ON(offsetof(struct pqi_task_management_request,
9635 request_id) != 8);
9636 BUILD_BUG_ON(offsetof(struct pqi_task_management_request,
9637 nexus_id) != 10);
9638 BUILD_BUG_ON(offsetof(struct pqi_task_management_request,
c2922f17
MB		 9639 timeout) != 14);
9640 BUILD_BUG_ON(offsetof(struct pqi_task_management_request,
6c223761
KB		 9641 lun_number) != 16);
9642 BUILD_BUG_ON(offsetof(struct pqi_task_management_request,
9643 protocol_specific) != 24);
9644 BUILD_BUG_ON(offsetof(struct pqi_task_management_request,
9645 outbound_queue_id_to_manage) != 26);
9646 BUILD_BUG_ON(offsetof(struct pqi_task_management_request,
9647 request_id_to_manage) != 28);
9648 BUILD_BUG_ON(offsetof(struct pqi_task_management_request,
9649 task_management_function) != 30);
9650 BUILD_BUG_ON(sizeof(struct pqi_task_management_request) != 32);
9651
9652 BUILD_BUG_ON(offsetof(struct pqi_task_management_response,
9653 header.iu_type) != 0);
9654 BUILD_BUG_ON(offsetof(struct pqi_task_management_response,
9655 header.iu_length) != 2);
9656 BUILD_BUG_ON(offsetof(struct pqi_task_management_response,
9657 request_id) != 8);
9658 BUILD_BUG_ON(offsetof(struct pqi_task_management_response,
9659 nexus_id) != 10);
9660 BUILD_BUG_ON(offsetof(struct pqi_task_management_response,
9661 additional_response_info) != 12);
9662 BUILD_BUG_ON(offsetof(struct pqi_task_management_response,
9663 response_code) != 15);
9664 BUILD_BUG_ON(sizeof(struct pqi_task_management_response) != 16);
9665
9666 BUILD_BUG_ON(offsetof(struct bmic_identify_controller,
9667 configured_logical_drive_count) != 0);
9668 BUILD_BUG_ON(offsetof(struct bmic_identify_controller,
9669 configuration_signature) != 1);
9670 BUILD_BUG_ON(offsetof(struct bmic_identify_controller,
598bef8d 9671 firmware_version_short) != 5);
6c223761
KB		 9672 BUILD_BUG_ON(offsetof(struct bmic_identify_controller,
9673 extended_logical_unit_count) != 154);
9674 BUILD_BUG_ON(offsetof(struct bmic_identify_controller,
9675 firmware_build_number) != 190);
598bef8d
KB		 9676 BUILD_BUG_ON(offsetof(struct bmic_identify_controller,
9677 vendor_id) != 200);
9678 BUILD_BUG_ON(offsetof(struct bmic_identify_controller,
9679 product_id) != 208);
9680 BUILD_BUG_ON(offsetof(struct bmic_identify_controller,
9681 extra_controller_flags) != 286);
6c223761
KB		 9682 BUILD_BUG_ON(offsetof(struct bmic_identify_controller,
9683 controller_mode) != 292);
598bef8d
KB		 9684 BUILD_BUG_ON(offsetof(struct bmic_identify_controller,
9685 spare_part_number) != 293);
9686 BUILD_BUG_ON(offsetof(struct bmic_identify_controller,
9687 firmware_version_long) != 325);
6c223761 9688
1be42f46
KB		 9689 BUILD_BUG_ON(offsetof(struct bmic_identify_physical_device,
9690 phys_bay_in_box) != 115);
9691 BUILD_BUG_ON(offsetof(struct bmic_identify_physical_device,
9692 device_type) != 120);
9693 BUILD_BUG_ON(offsetof(struct bmic_identify_physical_device,
9694 redundant_path_present_map) != 1736);
9695 BUILD_BUG_ON(offsetof(struct bmic_identify_physical_device,
9696 active_path_number) != 1738);
9697 BUILD_BUG_ON(offsetof(struct bmic_identify_physical_device,
9698 alternate_paths_phys_connector) != 1739);
9699 BUILD_BUG_ON(offsetof(struct bmic_identify_physical_device,
9700 alternate_paths_phys_box_on_port) != 1755);
9701 BUILD_BUG_ON(offsetof(struct bmic_identify_physical_device,
9702 current_queue_depth_limit) != 1796);
9703 BUILD_BUG_ON(sizeof(struct bmic_identify_physical_device) != 2560);
9704
f6cc2a77
KB		 9705 BUILD_BUG_ON(sizeof(struct bmic_sense_feature_buffer_header) != 4);
9706 BUILD_BUG_ON(offsetof(struct bmic_sense_feature_buffer_header,
9707 page_code) != 0);
9708 BUILD_BUG_ON(offsetof(struct bmic_sense_feature_buffer_header,
9709 subpage_code) != 1);
9710 BUILD_BUG_ON(offsetof(struct bmic_sense_feature_buffer_header,
9711 buffer_length) != 2);
9712
9713 BUILD_BUG_ON(sizeof(struct bmic_sense_feature_page_header) != 4);
9714 BUILD_BUG_ON(offsetof(struct bmic_sense_feature_page_header,
9715 page_code) != 0);
9716 BUILD_BUG_ON(offsetof(struct bmic_sense_feature_page_header,
9717 subpage_code) != 1);
9718 BUILD_BUG_ON(offsetof(struct bmic_sense_feature_page_header,
9719 page_length) != 2);
9720
9721 BUILD_BUG_ON(sizeof(struct bmic_sense_feature_io_page_aio_subpage)
9722 != 18);
9723 BUILD_BUG_ON(offsetof(struct bmic_sense_feature_io_page_aio_subpage,
9724 header) != 0);
9725 BUILD_BUG_ON(offsetof(struct bmic_sense_feature_io_page_aio_subpage,
9726 firmware_read_support) != 4);
9727 BUILD_BUG_ON(offsetof(struct bmic_sense_feature_io_page_aio_subpage,
9728 driver_read_support) != 5);
9729 BUILD_BUG_ON(offsetof(struct bmic_sense_feature_io_page_aio_subpage,
9730 firmware_write_support) != 6);
9731 BUILD_BUG_ON(offsetof(struct bmic_sense_feature_io_page_aio_subpage,
9732 driver_write_support) != 7);
9733 BUILD_BUG_ON(offsetof(struct bmic_sense_feature_io_page_aio_subpage,
9734 max_transfer_encrypted_sas_sata) != 8);
9735 BUILD_BUG_ON(offsetof(struct bmic_sense_feature_io_page_aio_subpage,
9736 max_transfer_encrypted_nvme) != 10);
9737 BUILD_BUG_ON(offsetof(struct bmic_sense_feature_io_page_aio_subpage,
9738 max_write_raid_5_6) != 12);
9739 BUILD_BUG_ON(offsetof(struct bmic_sense_feature_io_page_aio_subpage,
9740 max_write_raid_1_10_2drive) != 14);
9741 BUILD_BUG_ON(offsetof(struct bmic_sense_feature_io_page_aio_subpage,
9742 max_write_raid_1_10_3drive) != 16);
9743
6c223761
KB		 9744 BUILD_BUG_ON(PQI_ADMIN_IQ_NUM_ELEMENTS > 255);
9745 BUILD_BUG_ON(PQI_ADMIN_OQ_NUM_ELEMENTS > 255);
9746 BUILD_BUG_ON(PQI_ADMIN_IQ_ELEMENT_LENGTH %
9747 PQI_QUEUE_ELEMENT_LENGTH_ALIGNMENT != 0);
9748 BUILD_BUG_ON(PQI_ADMIN_OQ_ELEMENT_LENGTH %
9749 PQI_QUEUE_ELEMENT_LENGTH_ALIGNMENT != 0);
9750 BUILD_BUG_ON(PQI_OPERATIONAL_IQ_ELEMENT_LENGTH > 1048560);
9751 BUILD_BUG_ON(PQI_OPERATIONAL_IQ_ELEMENT_LENGTH %
9752 PQI_QUEUE_ELEMENT_LENGTH_ALIGNMENT != 0);
9753 BUILD_BUG_ON(PQI_OPERATIONAL_OQ_ELEMENT_LENGTH > 1048560);
9754 BUILD_BUG_ON(PQI_OPERATIONAL_OQ_ELEMENT_LENGTH %
9755 PQI_QUEUE_ELEMENT_LENGTH_ALIGNMENT != 0);
9756
9757 BUILD_BUG_ON(PQI_RESERVED_IO_SLOTS >= PQI_MAX_OUTSTANDING_REQUESTS);
d727a776
KB		 9758 BUILD_BUG_ON(PQI_RESERVED_IO_SLOTS >=
9759 PQI_MAX_OUTSTANDING_REQUESTS_KDUMP);
6c223761 9760}
Linux 6.x block layer and io_uring tree(s)