1 // SPDX-License-Identifier: GPL-2.0 2 /* 3 * driver for Microchip PQI-based storage controllers 4 * Copyright (c) 2019-2022 Microchip Technology Inc. and its subsidiaries 5 * Copyright (c) 2016-2018 Microsemi Corporation 6 * Copyright (c) 2016 PMC-Sierra, Inc. 7 * 8 * Questions/Comments/Bugfixes to storagedev@microchip.com 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> 20 #include <linux/reboot.h> 21 #include <linux/cciss_ioctl.h> 22 #include <linux/blk-mq-pci.h> 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 36 #define DRIVER_VERSION "2.1.20-035" 37 #define DRIVER_MAJOR 2 38 #define DRIVER_MINOR 1 39 #define DRIVER_RELEASE 20 40 #define DRIVER_REVISION 35 41 42 #define DRIVER_NAME "Microchip SmartPQI Driver (v" \ 43 DRIVER_VERSION BUILD_TIMESTAMP ")" 44 #define DRIVER_NAME_SHORT "smartpqi" 45 46 #define PQI_EXTRA_SGL_MEMORY (12 * sizeof(struct pqi_sg_descriptor)) 47 48 #define PQI_POST_RESET_DELAY_SECS 5 49 #define PQI_POST_OFA_RESET_DELAY_UPON_TIMEOUT_SECS 10 50 51 MODULE_AUTHOR("Microchip"); 52 MODULE_DESCRIPTION("Driver for Microchip Smart Family Controller version " 53 DRIVER_VERSION); 54 MODULE_VERSION(DRIVER_VERSION); 55 MODULE_LICENSE("GPL"); 56 57 struct pqi_cmd_priv { 58 int this_residual; 59 }; 60 61 static struct pqi_cmd_priv *pqi_cmd_priv(struct scsi_cmnd *cmd) 62 { 63 return scsi_cmd_priv(cmd); 64 } 65 66 static void pqi_verify_structures(void); 67 static void pqi_take_ctrl_offline(struct pqi_ctrl_info *ctrl_info, 68 enum pqi_ctrl_shutdown_reason ctrl_shutdown_reason); 69 static void pqi_ctrl_offline_worker(struct work_struct *work); 70 static int pqi_scan_scsi_devices(struct pqi_ctrl_info *ctrl_info); 71 static void pqi_scan_start(struct Scsi_Host *shost); 72 static void pqi_start_io(struct pqi_ctrl_info *ctrl_info, 73 struct pqi_queue_group *queue_group, enum pqi_io_path path, 74 struct pqi_io_request *io_request); 75 static int pqi_submit_raid_request_synchronous(struct pqi_ctrl_info *ctrl_info, 76 struct pqi_iu_header *request, unsigned int flags, 77 struct pqi_raid_error_info *error_info); 78 static int pqi_aio_submit_io(struct pqi_ctrl_info *ctrl_info, 79 struct scsi_cmnd *scmd, u32 aio_handle, u8 *cdb, 80 unsigned int cdb_length, struct pqi_queue_group *queue_group, 81 struct pqi_encryption_info *encryption_info, bool raid_bypass, bool io_high_prio); 82 static int pqi_aio_submit_r1_write_io(struct pqi_ctrl_info *ctrl_info, 83 struct scsi_cmnd *scmd, struct pqi_queue_group *queue_group, 84 struct pqi_encryption_info *encryption_info, struct pqi_scsi_dev *device, 85 struct pqi_scsi_dev_raid_map_data *rmd); 86 static int pqi_aio_submit_r56_write_io(struct pqi_ctrl_info *ctrl_info, 87 struct scsi_cmnd *scmd, struct pqi_queue_group *queue_group, 88 struct pqi_encryption_info *encryption_info, struct pqi_scsi_dev *device, 89 struct pqi_scsi_dev_raid_map_data *rmd); 90 static void pqi_ofa_ctrl_quiesce(struct pqi_ctrl_info *ctrl_info); 91 static void pqi_ofa_ctrl_unquiesce(struct pqi_ctrl_info *ctrl_info); 92 static int pqi_ofa_ctrl_restart(struct pqi_ctrl_info *ctrl_info, unsigned int delay_secs); 93 static void pqi_ofa_setup_host_buffer(struct pqi_ctrl_info *ctrl_info); 94 static void pqi_ofa_free_host_buffer(struct pqi_ctrl_info *ctrl_info); 95 static int pqi_ofa_host_memory_update(struct pqi_ctrl_info *ctrl_info); 96 static int pqi_device_wait_for_pending_io(struct pqi_ctrl_info *ctrl_info, 97 struct pqi_scsi_dev *device, u8 lun, unsigned long timeout_msecs); 98 static void pqi_fail_all_outstanding_requests(struct pqi_ctrl_info *ctrl_info); 99 100 /* for flags argument to pqi_submit_raid_request_synchronous() */ 101 #define PQI_SYNC_FLAGS_INTERRUPTABLE 0x1 102 103 static struct scsi_transport_template *pqi_sas_transport_template; 104 105 static atomic_t pqi_controller_count = ATOMIC_INIT(0); 106 107 enum pqi_lockup_action { 108 NONE, 109 REBOOT, 110 PANIC 111 }; 112 113 static enum pqi_lockup_action pqi_lockup_action = NONE; 114 115 static struct { 116 enum pqi_lockup_action action; 117 char *name; 118 } pqi_lockup_actions[] = { 119 { 120 .action = NONE, 121 .name = "none", 122 }, 123 { 124 .action = REBOOT, 125 .name = "reboot", 126 }, 127 { 128 .action = PANIC, 129 .name = "panic", 130 }, 131 }; 132 133 static unsigned int pqi_supported_event_types[] = { 134 PQI_EVENT_TYPE_HOTPLUG, 135 PQI_EVENT_TYPE_HARDWARE, 136 PQI_EVENT_TYPE_PHYSICAL_DEVICE, 137 PQI_EVENT_TYPE_LOGICAL_DEVICE, 138 PQI_EVENT_TYPE_OFA, 139 PQI_EVENT_TYPE_AIO_STATE_CHANGE, 140 PQI_EVENT_TYPE_AIO_CONFIG_CHANGE, 141 }; 142 143 static int pqi_disable_device_id_wildcards; 144 module_param_named(disable_device_id_wildcards, 145 pqi_disable_device_id_wildcards, int, 0644); 146 MODULE_PARM_DESC(disable_device_id_wildcards, 147 "Disable device ID wildcards."); 148 149 static int pqi_disable_heartbeat; 150 module_param_named(disable_heartbeat, 151 pqi_disable_heartbeat, int, 0644); 152 MODULE_PARM_DESC(disable_heartbeat, 153 "Disable heartbeat."); 154 155 static int pqi_disable_ctrl_shutdown; 156 module_param_named(disable_ctrl_shutdown, 157 pqi_disable_ctrl_shutdown, int, 0644); 158 MODULE_PARM_DESC(disable_ctrl_shutdown, 159 "Disable controller shutdown when controller locked up."); 160 161 static char *pqi_lockup_action_param; 162 module_param_named(lockup_action, 163 pqi_lockup_action_param, charp, 0644); 164 MODULE_PARM_DESC(lockup_action, "Action to take when controller locked up.\n" 165 "\t\tSupported: none, reboot, panic\n" 166 "\t\tDefault: none"); 167 168 static int pqi_expose_ld_first; 169 module_param_named(expose_ld_first, 170 pqi_expose_ld_first, int, 0644); 171 MODULE_PARM_DESC(expose_ld_first, "Expose logical drives before physical drives."); 172 173 static int pqi_hide_vsep; 174 module_param_named(hide_vsep, 175 pqi_hide_vsep, int, 0644); 176 MODULE_PARM_DESC(hide_vsep, "Hide the virtual SEP for direct attached drives."); 177 178 static int pqi_disable_managed_interrupts; 179 module_param_named(disable_managed_interrupts, 180 pqi_disable_managed_interrupts, int, 0644); 181 MODULE_PARM_DESC(disable_managed_interrupts, 182 "Disable the kernel automatically assigning SMP affinity to IRQs."); 183 184 static unsigned int pqi_ctrl_ready_timeout_secs; 185 module_param_named(ctrl_ready_timeout, 186 pqi_ctrl_ready_timeout_secs, uint, 0644); 187 MODULE_PARM_DESC(ctrl_ready_timeout, 188 "Timeout in seconds for driver to wait for controller ready."); 189 190 static char *raid_levels[] = { 191 "RAID-0", 192 "RAID-4", 193 "RAID-1(1+0)", 194 "RAID-5", 195 "RAID-5+1", 196 "RAID-6", 197 "RAID-1(Triple)", 198 }; 199 200 static char *pqi_raid_level_to_string(u8 raid_level) 201 { 202 if (raid_level < ARRAY_SIZE(raid_levels)) 203 return raid_levels[raid_level]; 204 205 return "RAID UNKNOWN"; 206 } 207 208 #define SA_RAID_0 0 209 #define SA_RAID_4 1 210 #define SA_RAID_1 2 /* also used for RAID 10 */ 211 #define SA_RAID_5 3 /* also used for RAID 50 */ 212 #define SA_RAID_51 4 213 #define SA_RAID_6 5 /* also used for RAID 60 */ 214 #define SA_RAID_TRIPLE 6 /* also used for RAID 1+0 Triple */ 215 #define SA_RAID_MAX SA_RAID_TRIPLE 216 #define SA_RAID_UNKNOWN 0xff 217 218 static inline void pqi_scsi_done(struct scsi_cmnd *scmd) 219 { 220 pqi_prep_for_scsi_done(scmd); 221 scsi_done(scmd); 222 } 223 224 static inline void pqi_disable_write_same(struct scsi_device *sdev) 225 { 226 sdev->no_write_same = 1; 227 } 228 229 static inline bool pqi_scsi3addr_equal(u8 *scsi3addr1, u8 *scsi3addr2) 230 { 231 return memcmp(scsi3addr1, scsi3addr2, 8) == 0; 232 } 233 234 static inline bool pqi_is_logical_device(struct pqi_scsi_dev *device) 235 { 236 return !device->is_physical_device; 237 } 238 239 static inline bool pqi_is_external_raid_addr(u8 *scsi3addr) 240 { 241 return scsi3addr[2] != 0; 242 } 243 244 static inline bool pqi_ctrl_offline(struct pqi_ctrl_info *ctrl_info) 245 { 246 return !ctrl_info->controller_online; 247 } 248 249 static inline void pqi_check_ctrl_health(struct pqi_ctrl_info *ctrl_info) 250 { 251 if (ctrl_info->controller_online) 252 if (!sis_is_firmware_running(ctrl_info)) 253 pqi_take_ctrl_offline(ctrl_info, PQI_FIRMWARE_KERNEL_NOT_UP); 254 } 255 256 static inline bool pqi_is_hba_lunid(u8 *scsi3addr) 257 { 258 return pqi_scsi3addr_equal(scsi3addr, RAID_CTLR_LUNID); 259 } 260 261 #define PQI_DRIVER_SCRATCH_PQI_MODE 0x1 262 #define PQI_DRIVER_SCRATCH_FW_TRIAGE_SUPPORTED 0x2 263 264 static inline enum pqi_ctrl_mode pqi_get_ctrl_mode(struct pqi_ctrl_info *ctrl_info) 265 { 266 return sis_read_driver_scratch(ctrl_info) & PQI_DRIVER_SCRATCH_PQI_MODE ? PQI_MODE : SIS_MODE; 267 } 268 269 static inline void pqi_save_ctrl_mode(struct pqi_ctrl_info *ctrl_info, 270 enum pqi_ctrl_mode mode) 271 { 272 u32 driver_scratch; 273 274 driver_scratch = sis_read_driver_scratch(ctrl_info); 275 276 if (mode == PQI_MODE) 277 driver_scratch |= PQI_DRIVER_SCRATCH_PQI_MODE; 278 else 279 driver_scratch &= ~PQI_DRIVER_SCRATCH_PQI_MODE; 280 281 sis_write_driver_scratch(ctrl_info, driver_scratch); 282 } 283 284 static inline bool pqi_is_fw_triage_supported(struct pqi_ctrl_info *ctrl_info) 285 { 286 return (sis_read_driver_scratch(ctrl_info) & PQI_DRIVER_SCRATCH_FW_TRIAGE_SUPPORTED) != 0; 287 } 288 289 static inline void pqi_save_fw_triage_setting(struct pqi_ctrl_info *ctrl_info, bool is_supported) 290 { 291 u32 driver_scratch; 292 293 driver_scratch = sis_read_driver_scratch(ctrl_info); 294 295 if (is_supported) 296 driver_scratch |= PQI_DRIVER_SCRATCH_FW_TRIAGE_SUPPORTED; 297 else 298 driver_scratch &= ~PQI_DRIVER_SCRATCH_FW_TRIAGE_SUPPORTED; 299 300 sis_write_driver_scratch(ctrl_info, driver_scratch); 301 } 302 303 static inline void pqi_ctrl_block_scan(struct pqi_ctrl_info *ctrl_info) 304 { 305 ctrl_info->scan_blocked = true; 306 mutex_lock(&ctrl_info->scan_mutex); 307 } 308 309 static inline void pqi_ctrl_unblock_scan(struct pqi_ctrl_info *ctrl_info) 310 { 311 ctrl_info->scan_blocked = false; 312 mutex_unlock(&ctrl_info->scan_mutex); 313 } 314 315 static inline bool pqi_ctrl_scan_blocked(struct pqi_ctrl_info *ctrl_info) 316 { 317 return ctrl_info->scan_blocked; 318 } 319 320 static inline void pqi_ctrl_block_device_reset(struct pqi_ctrl_info *ctrl_info) 321 { 322 mutex_lock(&ctrl_info->lun_reset_mutex); 323 } 324 325 static inline void pqi_ctrl_unblock_device_reset(struct pqi_ctrl_info *ctrl_info) 326 { 327 mutex_unlock(&ctrl_info->lun_reset_mutex); 328 } 329 330 static inline void pqi_scsi_block_requests(struct pqi_ctrl_info *ctrl_info) 331 { 332 struct Scsi_Host *shost; 333 unsigned int num_loops; 334 int msecs_sleep; 335 336 shost = ctrl_info->scsi_host; 337 338 scsi_block_requests(shost); 339 340 num_loops = 0; 341 msecs_sleep = 20; 342 while (scsi_host_busy(shost)) { 343 num_loops++; 344 if (num_loops == 10) 345 msecs_sleep = 500; 346 msleep(msecs_sleep); 347 } 348 } 349 350 static inline void pqi_scsi_unblock_requests(struct pqi_ctrl_info *ctrl_info) 351 { 352 scsi_unblock_requests(ctrl_info->scsi_host); 353 } 354 355 static inline void pqi_ctrl_busy(struct pqi_ctrl_info *ctrl_info) 356 { 357 atomic_inc(&ctrl_info->num_busy_threads); 358 } 359 360 static inline void pqi_ctrl_unbusy(struct pqi_ctrl_info *ctrl_info) 361 { 362 atomic_dec(&ctrl_info->num_busy_threads); 363 } 364 365 static inline bool pqi_ctrl_blocked(struct pqi_ctrl_info *ctrl_info) 366 { 367 return ctrl_info->block_requests; 368 } 369 370 static inline void pqi_ctrl_block_requests(struct pqi_ctrl_info *ctrl_info) 371 { 372 ctrl_info->block_requests = true; 373 } 374 375 static inline void pqi_ctrl_unblock_requests(struct pqi_ctrl_info *ctrl_info) 376 { 377 ctrl_info->block_requests = false; 378 wake_up_all(&ctrl_info->block_requests_wait); 379 } 380 381 static void pqi_wait_if_ctrl_blocked(struct pqi_ctrl_info *ctrl_info) 382 { 383 if (!pqi_ctrl_blocked(ctrl_info)) 384 return; 385 386 atomic_inc(&ctrl_info->num_blocked_threads); 387 wait_event(ctrl_info->block_requests_wait, 388 !pqi_ctrl_blocked(ctrl_info)); 389 atomic_dec(&ctrl_info->num_blocked_threads); 390 } 391 392 #define PQI_QUIESCE_WARNING_TIMEOUT_SECS 10 393 394 static inline void pqi_ctrl_wait_until_quiesced(struct pqi_ctrl_info *ctrl_info) 395 { 396 unsigned long start_jiffies; 397 unsigned long warning_timeout; 398 bool displayed_warning; 399 400 displayed_warning = false; 401 start_jiffies = jiffies; 402 warning_timeout = (PQI_QUIESCE_WARNING_TIMEOUT_SECS * HZ) + start_jiffies; 403 404 while (atomic_read(&ctrl_info->num_busy_threads) > 405 atomic_read(&ctrl_info->num_blocked_threads)) { 406 if (time_after(jiffies, warning_timeout)) { 407 dev_warn(&ctrl_info->pci_dev->dev, 408 "waiting %u seconds for driver activity to quiesce\n", 409 jiffies_to_msecs(jiffies - start_jiffies) / 1000); 410 displayed_warning = true; 411 warning_timeout = (PQI_QUIESCE_WARNING_TIMEOUT_SECS * HZ) + jiffies; 412 } 413 usleep_range(1000, 2000); 414 } 415 416 if (displayed_warning) 417 dev_warn(&ctrl_info->pci_dev->dev, 418 "driver activity quiesced after waiting for %u seconds\n", 419 jiffies_to_msecs(jiffies - start_jiffies) / 1000); 420 } 421 422 static inline bool pqi_device_offline(struct pqi_scsi_dev *device) 423 { 424 return device->device_offline; 425 } 426 427 static inline void pqi_ctrl_ofa_start(struct pqi_ctrl_info *ctrl_info) 428 { 429 mutex_lock(&ctrl_info->ofa_mutex); 430 } 431 432 static inline void pqi_ctrl_ofa_done(struct pqi_ctrl_info *ctrl_info) 433 { 434 mutex_unlock(&ctrl_info->ofa_mutex); 435 } 436 437 static inline void pqi_wait_until_ofa_finished(struct pqi_ctrl_info *ctrl_info) 438 { 439 mutex_lock(&ctrl_info->ofa_mutex); 440 mutex_unlock(&ctrl_info->ofa_mutex); 441 } 442 443 static inline bool pqi_ofa_in_progress(struct pqi_ctrl_info *ctrl_info) 444 { 445 return mutex_is_locked(&ctrl_info->ofa_mutex); 446 } 447 448 static inline void pqi_device_remove_start(struct pqi_scsi_dev *device) 449 { 450 device->in_remove = true; 451 } 452 453 static inline bool pqi_device_in_remove(struct pqi_scsi_dev *device) 454 { 455 return device->in_remove; 456 } 457 458 static inline int pqi_event_type_to_event_index(unsigned int event_type) 459 { 460 int index; 461 462 for (index = 0; index < ARRAY_SIZE(pqi_supported_event_types); index++) 463 if (event_type == pqi_supported_event_types[index]) 464 return index; 465 466 return -1; 467 } 468 469 static inline bool pqi_is_supported_event(unsigned int event_type) 470 { 471 return pqi_event_type_to_event_index(event_type) != -1; 472 } 473 474 static inline void pqi_schedule_rescan_worker_with_delay(struct pqi_ctrl_info *ctrl_info, 475 unsigned long delay) 476 { 477 if (pqi_ctrl_offline(ctrl_info)) 478 return; 479 480 schedule_delayed_work(&ctrl_info->rescan_work, delay); 481 } 482 483 static inline void pqi_schedule_rescan_worker(struct pqi_ctrl_info *ctrl_info) 484 { 485 pqi_schedule_rescan_worker_with_delay(ctrl_info, 0); 486 } 487 488 #define PQI_RESCAN_WORK_DELAY (10 * HZ) 489 490 static inline void pqi_schedule_rescan_worker_delayed(struct pqi_ctrl_info *ctrl_info) 491 { 492 pqi_schedule_rescan_worker_with_delay(ctrl_info, PQI_RESCAN_WORK_DELAY); 493 } 494 495 static inline void pqi_cancel_rescan_worker(struct pqi_ctrl_info *ctrl_info) 496 { 497 cancel_delayed_work_sync(&ctrl_info->rescan_work); 498 } 499 500 static inline u32 pqi_read_heartbeat_counter(struct pqi_ctrl_info *ctrl_info) 501 { 502 if (!ctrl_info->heartbeat_counter) 503 return 0; 504 505 return readl(ctrl_info->heartbeat_counter); 506 } 507 508 static inline u8 pqi_read_soft_reset_status(struct pqi_ctrl_info *ctrl_info) 509 { 510 return readb(ctrl_info->soft_reset_status); 511 } 512 513 static inline void pqi_clear_soft_reset_status(struct pqi_ctrl_info *ctrl_info) 514 { 515 u8 status; 516 517 status = pqi_read_soft_reset_status(ctrl_info); 518 status &= ~PQI_SOFT_RESET_ABORT; 519 writeb(status, ctrl_info->soft_reset_status); 520 } 521 522 static int pqi_map_single(struct pci_dev *pci_dev, 523 struct pqi_sg_descriptor *sg_descriptor, void *buffer, 524 size_t buffer_length, enum dma_data_direction data_direction) 525 { 526 dma_addr_t bus_address; 527 528 if (!buffer || buffer_length == 0 || data_direction == DMA_NONE) 529 return 0; 530 531 bus_address = dma_map_single(&pci_dev->dev, buffer, buffer_length, 532 data_direction); 533 if (dma_mapping_error(&pci_dev->dev, bus_address)) 534 return -ENOMEM; 535 536 put_unaligned_le64((u64)bus_address, &sg_descriptor->address); 537 put_unaligned_le32(buffer_length, &sg_descriptor->length); 538 put_unaligned_le32(CISS_SG_LAST, &sg_descriptor->flags); 539 540 return 0; 541 } 542 543 static void pqi_pci_unmap(struct pci_dev *pci_dev, 544 struct pqi_sg_descriptor *descriptors, int num_descriptors, 545 enum dma_data_direction data_direction) 546 { 547 int i; 548 549 if (data_direction == DMA_NONE) 550 return; 551 552 for (i = 0; i < num_descriptors; i++) 553 dma_unmap_single(&pci_dev->dev, 554 (dma_addr_t)get_unaligned_le64(&descriptors[i].address), 555 get_unaligned_le32(&descriptors[i].length), 556 data_direction); 557 } 558 559 static int pqi_build_raid_path_request(struct pqi_ctrl_info *ctrl_info, 560 struct pqi_raid_path_request *request, u8 cmd, 561 u8 *scsi3addr, void *buffer, size_t buffer_length, 562 u16 vpd_page, enum dma_data_direction *dir) 563 { 564 u8 *cdb; 565 size_t cdb_length = buffer_length; 566 567 memset(request, 0, sizeof(*request)); 568 569 request->header.iu_type = PQI_REQUEST_IU_RAID_PATH_IO; 570 put_unaligned_le16(offsetof(struct pqi_raid_path_request, 571 sg_descriptors[1]) - PQI_REQUEST_HEADER_LENGTH, 572 &request->header.iu_length); 573 put_unaligned_le32(buffer_length, &request->buffer_length); 574 memcpy(request->lun_number, scsi3addr, sizeof(request->lun_number)); 575 request->task_attribute = SOP_TASK_ATTRIBUTE_SIMPLE; 576 request->additional_cdb_bytes_usage = SOP_ADDITIONAL_CDB_BYTES_0; 577 578 cdb = request->cdb; 579 580 switch (cmd) { 581 case TEST_UNIT_READY: 582 request->data_direction = SOP_READ_FLAG; 583 cdb[0] = TEST_UNIT_READY; 584 break; 585 case INQUIRY: 586 request->data_direction = SOP_READ_FLAG; 587 cdb[0] = INQUIRY; 588 if (vpd_page & VPD_PAGE) { 589 cdb[1] = 0x1; 590 cdb[2] = (u8)vpd_page; 591 } 592 cdb[4] = (u8)cdb_length; 593 break; 594 case CISS_REPORT_LOG: 595 case CISS_REPORT_PHYS: 596 request->data_direction = SOP_READ_FLAG; 597 cdb[0] = cmd; 598 if (cmd == CISS_REPORT_PHYS) { 599 if (ctrl_info->rpl_extended_format_4_5_supported) 600 cdb[1] = CISS_REPORT_PHYS_FLAG_EXTENDED_FORMAT_4; 601 else 602 cdb[1] = CISS_REPORT_PHYS_FLAG_EXTENDED_FORMAT_2; 603 } else { 604 cdb[1] = ctrl_info->ciss_report_log_flags; 605 } 606 put_unaligned_be32(cdb_length, &cdb[6]); 607 break; 608 case CISS_GET_RAID_MAP: 609 request->data_direction = SOP_READ_FLAG; 610 cdb[0] = CISS_READ; 611 cdb[1] = CISS_GET_RAID_MAP; 612 put_unaligned_be32(cdb_length, &cdb[6]); 613 break; 614 case SA_FLUSH_CACHE: 615 request->header.driver_flags = PQI_DRIVER_NONBLOCKABLE_REQUEST; 616 request->data_direction = SOP_WRITE_FLAG; 617 cdb[0] = BMIC_WRITE; 618 cdb[6] = BMIC_FLUSH_CACHE; 619 put_unaligned_be16(cdb_length, &cdb[7]); 620 break; 621 case BMIC_SENSE_DIAG_OPTIONS: 622 cdb_length = 0; 623 fallthrough; 624 case BMIC_IDENTIFY_CONTROLLER: 625 case BMIC_IDENTIFY_PHYSICAL_DEVICE: 626 case BMIC_SENSE_SUBSYSTEM_INFORMATION: 627 case BMIC_SENSE_FEATURE: 628 request->data_direction = SOP_READ_FLAG; 629 cdb[0] = BMIC_READ; 630 cdb[6] = cmd; 631 put_unaligned_be16(cdb_length, &cdb[7]); 632 break; 633 case BMIC_SET_DIAG_OPTIONS: 634 cdb_length = 0; 635 fallthrough; 636 case BMIC_WRITE_HOST_WELLNESS: 637 request->data_direction = SOP_WRITE_FLAG; 638 cdb[0] = BMIC_WRITE; 639 cdb[6] = cmd; 640 put_unaligned_be16(cdb_length, &cdb[7]); 641 break; 642 case BMIC_CSMI_PASSTHRU: 643 request->data_direction = SOP_BIDIRECTIONAL; 644 cdb[0] = BMIC_WRITE; 645 cdb[5] = CSMI_CC_SAS_SMP_PASSTHRU; 646 cdb[6] = cmd; 647 put_unaligned_be16(cdb_length, &cdb[7]); 648 break; 649 default: 650 dev_err(&ctrl_info->pci_dev->dev, "unknown command 0x%c\n", cmd); 651 break; 652 } 653 654 switch (request->data_direction) { 655 case SOP_READ_FLAG: 656 *dir = DMA_FROM_DEVICE; 657 break; 658 case SOP_WRITE_FLAG: 659 *dir = DMA_TO_DEVICE; 660 break; 661 case SOP_NO_DIRECTION_FLAG: 662 *dir = DMA_NONE; 663 break; 664 default: 665 *dir = DMA_BIDIRECTIONAL; 666 break; 667 } 668 669 return pqi_map_single(ctrl_info->pci_dev, &request->sg_descriptors[0], 670 buffer, buffer_length, *dir); 671 } 672 673 static inline void pqi_reinit_io_request(struct pqi_io_request *io_request) 674 { 675 io_request->scmd = NULL; 676 io_request->status = 0; 677 io_request->error_info = NULL; 678 io_request->raid_bypass = false; 679 } 680 681 static inline struct pqi_io_request *pqi_alloc_io_request(struct pqi_ctrl_info *ctrl_info, struct scsi_cmnd *scmd) 682 { 683 struct pqi_io_request *io_request; 684 u16 i; 685 686 if (scmd) { /* SML I/O request */ 687 u32 blk_tag = blk_mq_unique_tag(scsi_cmd_to_rq(scmd)); 688 689 i = blk_mq_unique_tag_to_tag(blk_tag); 690 io_request = &ctrl_info->io_request_pool[i]; 691 if (atomic_inc_return(&io_request->refcount) > 1) { 692 atomic_dec(&io_request->refcount); 693 return NULL; 694 } 695 } else { /* IOCTL or driver internal request */ 696 /* 697 * benignly racy - may have to wait for an open slot. 698 * command slot range is scsi_ml_can_queue - 699 * [scsi_ml_can_queue + (PQI_RESERVED_IO_SLOTS - 1)] 700 */ 701 i = 0; 702 while (1) { 703 io_request = &ctrl_info->io_request_pool[ctrl_info->scsi_ml_can_queue + i]; 704 if (atomic_inc_return(&io_request->refcount) == 1) 705 break; 706 atomic_dec(&io_request->refcount); 707 i = (i + 1) % PQI_RESERVED_IO_SLOTS; 708 } 709 } 710 711 pqi_reinit_io_request(io_request); 712 713 return io_request; 714 } 715 716 static void pqi_free_io_request(struct pqi_io_request *io_request) 717 { 718 atomic_dec(&io_request->refcount); 719 } 720 721 static int pqi_send_scsi_raid_request(struct pqi_ctrl_info *ctrl_info, u8 cmd, 722 u8 *scsi3addr, void *buffer, size_t buffer_length, u16 vpd_page, 723 struct pqi_raid_error_info *error_info) 724 { 725 int rc; 726 struct pqi_raid_path_request request; 727 enum dma_data_direction dir; 728 729 rc = pqi_build_raid_path_request(ctrl_info, &request, cmd, scsi3addr, 730 buffer, buffer_length, vpd_page, &dir); 731 if (rc) 732 return rc; 733 734 rc = pqi_submit_raid_request_synchronous(ctrl_info, &request.header, 0, error_info); 735 736 pqi_pci_unmap(ctrl_info->pci_dev, request.sg_descriptors, 1, dir); 737 738 return rc; 739 } 740 741 /* helper functions for pqi_send_scsi_raid_request */ 742 743 static inline int pqi_send_ctrl_raid_request(struct pqi_ctrl_info *ctrl_info, 744 u8 cmd, void *buffer, size_t buffer_length) 745 { 746 return pqi_send_scsi_raid_request(ctrl_info, cmd, RAID_CTLR_LUNID, 747 buffer, buffer_length, 0, NULL); 748 } 749 750 static inline int pqi_send_ctrl_raid_with_error(struct pqi_ctrl_info *ctrl_info, 751 u8 cmd, void *buffer, size_t buffer_length, 752 struct pqi_raid_error_info *error_info) 753 { 754 return pqi_send_scsi_raid_request(ctrl_info, cmd, RAID_CTLR_LUNID, 755 buffer, buffer_length, 0, error_info); 756 } 757 758 static inline int pqi_identify_controller(struct pqi_ctrl_info *ctrl_info, 759 struct bmic_identify_controller *buffer) 760 { 761 return pqi_send_ctrl_raid_request(ctrl_info, BMIC_IDENTIFY_CONTROLLER, 762 buffer, sizeof(*buffer)); 763 } 764 765 static inline int pqi_sense_subsystem_info(struct pqi_ctrl_info *ctrl_info, 766 struct bmic_sense_subsystem_info *sense_info) 767 { 768 return pqi_send_ctrl_raid_request(ctrl_info, 769 BMIC_SENSE_SUBSYSTEM_INFORMATION, sense_info, 770 sizeof(*sense_info)); 771 } 772 773 static inline int pqi_scsi_inquiry(struct pqi_ctrl_info *ctrl_info, 774 u8 *scsi3addr, u16 vpd_page, void *buffer, size_t buffer_length) 775 { 776 return pqi_send_scsi_raid_request(ctrl_info, INQUIRY, scsi3addr, 777 buffer, buffer_length, vpd_page, NULL); 778 } 779 780 static int pqi_identify_physical_device(struct pqi_ctrl_info *ctrl_info, 781 struct pqi_scsi_dev *device, 782 struct bmic_identify_physical_device *buffer, size_t buffer_length) 783 { 784 int rc; 785 enum dma_data_direction dir; 786 u16 bmic_device_index; 787 struct pqi_raid_path_request request; 788 789 rc = pqi_build_raid_path_request(ctrl_info, &request, 790 BMIC_IDENTIFY_PHYSICAL_DEVICE, RAID_CTLR_LUNID, buffer, 791 buffer_length, 0, &dir); 792 if (rc) 793 return rc; 794 795 bmic_device_index = CISS_GET_DRIVE_NUMBER(device->scsi3addr); 796 request.cdb[2] = (u8)bmic_device_index; 797 request.cdb[9] = (u8)(bmic_device_index >> 8); 798 799 rc = pqi_submit_raid_request_synchronous(ctrl_info, &request.header, 0, NULL); 800 801 pqi_pci_unmap(ctrl_info->pci_dev, request.sg_descriptors, 1, dir); 802 803 return rc; 804 } 805 806 static inline u32 pqi_aio_limit_to_bytes(__le16 *limit) 807 { 808 u32 bytes; 809 810 bytes = get_unaligned_le16(limit); 811 if (bytes == 0) 812 bytes = ~0; 813 else 814 bytes *= 1024; 815 816 return bytes; 817 } 818 819 #pragma pack(1) 820 821 struct bmic_sense_feature_buffer { 822 struct bmic_sense_feature_buffer_header header; 823 struct bmic_sense_feature_io_page_aio_subpage aio_subpage; 824 }; 825 826 #pragma pack() 827 828 #define MINIMUM_AIO_SUBPAGE_BUFFER_LENGTH \ 829 offsetofend(struct bmic_sense_feature_buffer, \ 830 aio_subpage.max_write_raid_1_10_3drive) 831 832 #define MINIMUM_AIO_SUBPAGE_LENGTH \ 833 (offsetofend(struct bmic_sense_feature_io_page_aio_subpage, \ 834 max_write_raid_1_10_3drive) - \ 835 sizeof_field(struct bmic_sense_feature_io_page_aio_subpage, header)) 836 837 static int pqi_get_advanced_raid_bypass_config(struct pqi_ctrl_info *ctrl_info) 838 { 839 int rc; 840 enum dma_data_direction dir; 841 struct pqi_raid_path_request request; 842 struct bmic_sense_feature_buffer *buffer; 843 844 buffer = kmalloc(sizeof(*buffer), GFP_KERNEL); 845 if (!buffer) 846 return -ENOMEM; 847 848 rc = pqi_build_raid_path_request(ctrl_info, &request, BMIC_SENSE_FEATURE, RAID_CTLR_LUNID, 849 buffer, sizeof(*buffer), 0, &dir); 850 if (rc) 851 goto error; 852 853 request.cdb[2] = BMIC_SENSE_FEATURE_IO_PAGE; 854 request.cdb[3] = BMIC_SENSE_FEATURE_IO_PAGE_AIO_SUBPAGE; 855 856 rc = pqi_submit_raid_request_synchronous(ctrl_info, &request.header, 0, NULL); 857 858 pqi_pci_unmap(ctrl_info->pci_dev, request.sg_descriptors, 1, dir); 859 860 if (rc) 861 goto error; 862 863 if (buffer->header.page_code != BMIC_SENSE_FEATURE_IO_PAGE || 864 buffer->header.subpage_code != 865 BMIC_SENSE_FEATURE_IO_PAGE_AIO_SUBPAGE || 866 get_unaligned_le16(&buffer->header.buffer_length) < 867 MINIMUM_AIO_SUBPAGE_BUFFER_LENGTH || 868 buffer->aio_subpage.header.page_code != 869 BMIC_SENSE_FEATURE_IO_PAGE || 870 buffer->aio_subpage.header.subpage_code != 871 BMIC_SENSE_FEATURE_IO_PAGE_AIO_SUBPAGE || 872 get_unaligned_le16(&buffer->aio_subpage.header.page_length) < 873 MINIMUM_AIO_SUBPAGE_LENGTH) { 874 goto error; 875 } 876 877 ctrl_info->max_transfer_encrypted_sas_sata = 878 pqi_aio_limit_to_bytes( 879 &buffer->aio_subpage.max_transfer_encrypted_sas_sata); 880 881 ctrl_info->max_transfer_encrypted_nvme = 882 pqi_aio_limit_to_bytes( 883 &buffer->aio_subpage.max_transfer_encrypted_nvme); 884 885 ctrl_info->max_write_raid_5_6 = 886 pqi_aio_limit_to_bytes( 887 &buffer->aio_subpage.max_write_raid_5_6); 888 889 ctrl_info->max_write_raid_1_10_2drive = 890 pqi_aio_limit_to_bytes( 891 &buffer->aio_subpage.max_write_raid_1_10_2drive); 892 893 ctrl_info->max_write_raid_1_10_3drive = 894 pqi_aio_limit_to_bytes( 895 &buffer->aio_subpage.max_write_raid_1_10_3drive); 896 897 error: 898 kfree(buffer); 899 900 return rc; 901 } 902 903 static int pqi_flush_cache(struct pqi_ctrl_info *ctrl_info, 904 enum bmic_flush_cache_shutdown_event shutdown_event) 905 { 906 int rc; 907 struct bmic_flush_cache *flush_cache; 908 909 flush_cache = kzalloc(sizeof(*flush_cache), GFP_KERNEL); 910 if (!flush_cache) 911 return -ENOMEM; 912 913 flush_cache->shutdown_event = shutdown_event; 914 915 rc = pqi_send_ctrl_raid_request(ctrl_info, SA_FLUSH_CACHE, flush_cache, 916 sizeof(*flush_cache)); 917 918 kfree(flush_cache); 919 920 return rc; 921 } 922 923 int pqi_csmi_smp_passthru(struct pqi_ctrl_info *ctrl_info, 924 struct bmic_csmi_smp_passthru_buffer *buffer, size_t buffer_length, 925 struct pqi_raid_error_info *error_info) 926 { 927 return pqi_send_ctrl_raid_with_error(ctrl_info, BMIC_CSMI_PASSTHRU, 928 buffer, buffer_length, error_info); 929 } 930 931 #define PQI_FETCH_PTRAID_DATA (1 << 31) 932 933 static int pqi_set_diag_rescan(struct pqi_ctrl_info *ctrl_info) 934 { 935 int rc; 936 struct bmic_diag_options *diag; 937 938 diag = kzalloc(sizeof(*diag), GFP_KERNEL); 939 if (!diag) 940 return -ENOMEM; 941 942 rc = pqi_send_ctrl_raid_request(ctrl_info, BMIC_SENSE_DIAG_OPTIONS, 943 diag, sizeof(*diag)); 944 if (rc) 945 goto out; 946 947 diag->options |= cpu_to_le32(PQI_FETCH_PTRAID_DATA); 948 949 rc = pqi_send_ctrl_raid_request(ctrl_info, BMIC_SET_DIAG_OPTIONS, diag, 950 sizeof(*diag)); 951 952 out: 953 kfree(diag); 954 955 return rc; 956 } 957 958 static inline int pqi_write_host_wellness(struct pqi_ctrl_info *ctrl_info, 959 void *buffer, size_t buffer_length) 960 { 961 return pqi_send_ctrl_raid_request(ctrl_info, BMIC_WRITE_HOST_WELLNESS, 962 buffer, buffer_length); 963 } 964 965 #pragma pack(1) 966 967 struct bmic_host_wellness_driver_version { 968 u8 start_tag[4]; 969 u8 driver_version_tag[2]; 970 __le16 driver_version_length; 971 char driver_version[32]; 972 u8 dont_write_tag[2]; 973 u8 end_tag[2]; 974 }; 975 976 #pragma pack() 977 978 static int pqi_write_driver_version_to_host_wellness( 979 struct pqi_ctrl_info *ctrl_info) 980 { 981 int rc; 982 struct bmic_host_wellness_driver_version *buffer; 983 size_t buffer_length; 984 985 buffer_length = sizeof(*buffer); 986 987 buffer = kmalloc(buffer_length, GFP_KERNEL); 988 if (!buffer) 989 return -ENOMEM; 990 991 buffer->start_tag[0] = '<'; 992 buffer->start_tag[1] = 'H'; 993 buffer->start_tag[2] = 'W'; 994 buffer->start_tag[3] = '>'; 995 buffer->driver_version_tag[0] = 'D'; 996 buffer->driver_version_tag[1] = 'V'; 997 put_unaligned_le16(sizeof(buffer->driver_version), 998 &buffer->driver_version_length); 999 strncpy(buffer->driver_version, "Linux " DRIVER_VERSION, 1000 sizeof(buffer->driver_version) - 1); 1001 buffer->driver_version[sizeof(buffer->driver_version) - 1] = '\0'; 1002 buffer->dont_write_tag[0] = 'D'; 1003 buffer->dont_write_tag[1] = 'W'; 1004 buffer->end_tag[0] = 'Z'; 1005 buffer->end_tag[1] = 'Z'; 1006 1007 rc = pqi_write_host_wellness(ctrl_info, buffer, buffer_length); 1008 1009 kfree(buffer); 1010 1011 return rc; 1012 } 1013 1014 #pragma pack(1) 1015 1016 struct bmic_host_wellness_time { 1017 u8 start_tag[4]; 1018 u8 time_tag[2]; 1019 __le16 time_length; 1020 u8 time[8]; 1021 u8 dont_write_tag[2]; 1022 u8 end_tag[2]; 1023 }; 1024 1025 #pragma pack() 1026 1027 static int pqi_write_current_time_to_host_wellness( 1028 struct pqi_ctrl_info *ctrl_info) 1029 { 1030 int rc; 1031 struct bmic_host_wellness_time *buffer; 1032 size_t buffer_length; 1033 time64_t local_time; 1034 unsigned int year; 1035 struct tm tm; 1036 1037 buffer_length = sizeof(*buffer); 1038 1039 buffer = kmalloc(buffer_length, GFP_KERNEL); 1040 if (!buffer) 1041 return -ENOMEM; 1042 1043 buffer->start_tag[0] = '<'; 1044 buffer->start_tag[1] = 'H'; 1045 buffer->start_tag[2] = 'W'; 1046 buffer->start_tag[3] = '>'; 1047 buffer->time_tag[0] = 'T'; 1048 buffer->time_tag[1] = 'D'; 1049 put_unaligned_le16(sizeof(buffer->time), 1050 &buffer->time_length); 1051 1052 local_time = ktime_get_real_seconds(); 1053 time64_to_tm(local_time, -sys_tz.tz_minuteswest * 60, &tm); 1054 year = tm.tm_year + 1900; 1055 1056 buffer->time[0] = bin2bcd(tm.tm_hour); 1057 buffer->time[1] = bin2bcd(tm.tm_min); 1058 buffer->time[2] = bin2bcd(tm.tm_sec); 1059 buffer->time[3] = 0; 1060 buffer->time[4] = bin2bcd(tm.tm_mon + 1); 1061 buffer->time[5] = bin2bcd(tm.tm_mday); 1062 buffer->time[6] = bin2bcd(year / 100); 1063 buffer->time[7] = bin2bcd(year % 100); 1064 1065 buffer->dont_write_tag[0] = 'D'; 1066 buffer->dont_write_tag[1] = 'W'; 1067 buffer->end_tag[0] = 'Z'; 1068 buffer->end_tag[1] = 'Z'; 1069 1070 rc = pqi_write_host_wellness(ctrl_info, buffer, buffer_length); 1071 1072 kfree(buffer); 1073 1074 return rc; 1075 } 1076 1077 #define PQI_UPDATE_TIME_WORK_INTERVAL (24UL * 60 * 60 * HZ) 1078 1079 static void pqi_update_time_worker(struct work_struct *work) 1080 { 1081 int rc; 1082 struct pqi_ctrl_info *ctrl_info; 1083 1084 ctrl_info = container_of(to_delayed_work(work), struct pqi_ctrl_info, 1085 update_time_work); 1086 1087 rc = pqi_write_current_time_to_host_wellness(ctrl_info); 1088 if (rc) 1089 dev_warn(&ctrl_info->pci_dev->dev, 1090 "error updating time on controller\n"); 1091 1092 schedule_delayed_work(&ctrl_info->update_time_work, 1093 PQI_UPDATE_TIME_WORK_INTERVAL); 1094 } 1095 1096 static inline void pqi_schedule_update_time_worker(struct pqi_ctrl_info *ctrl_info) 1097 { 1098 schedule_delayed_work(&ctrl_info->update_time_work, 0); 1099 } 1100 1101 static inline void pqi_cancel_update_time_worker(struct pqi_ctrl_info *ctrl_info) 1102 { 1103 cancel_delayed_work_sync(&ctrl_info->update_time_work); 1104 } 1105 1106 static inline int pqi_report_luns(struct pqi_ctrl_info *ctrl_info, u8 cmd, void *buffer, 1107 size_t buffer_length) 1108 { 1109 return pqi_send_ctrl_raid_request(ctrl_info, cmd, buffer, buffer_length); 1110 } 1111 1112 static int pqi_report_phys_logical_luns(struct pqi_ctrl_info *ctrl_info, u8 cmd, void **buffer) 1113 { 1114 int rc; 1115 size_t lun_list_length; 1116 size_t lun_data_length; 1117 size_t new_lun_list_length; 1118 void *lun_data = NULL; 1119 struct report_lun_header *report_lun_header; 1120 1121 report_lun_header = kmalloc(sizeof(*report_lun_header), GFP_KERNEL); 1122 if (!report_lun_header) { 1123 rc = -ENOMEM; 1124 goto out; 1125 } 1126 1127 rc = pqi_report_luns(ctrl_info, cmd, report_lun_header, sizeof(*report_lun_header)); 1128 if (rc) 1129 goto out; 1130 1131 lun_list_length = get_unaligned_be32(&report_lun_header->list_length); 1132 1133 again: 1134 lun_data_length = sizeof(struct report_lun_header) + lun_list_length; 1135 1136 lun_data = kmalloc(lun_data_length, GFP_KERNEL); 1137 if (!lun_data) { 1138 rc = -ENOMEM; 1139 goto out; 1140 } 1141 1142 if (lun_list_length == 0) { 1143 memcpy(lun_data, report_lun_header, sizeof(*report_lun_header)); 1144 goto out; 1145 } 1146 1147 rc = pqi_report_luns(ctrl_info, cmd, lun_data, lun_data_length); 1148 if (rc) 1149 goto out; 1150 1151 new_lun_list_length = 1152 get_unaligned_be32(&((struct report_lun_header *)lun_data)->list_length); 1153 1154 if (new_lun_list_length > lun_list_length) { 1155 lun_list_length = new_lun_list_length; 1156 kfree(lun_data); 1157 goto again; 1158 } 1159 1160 out: 1161 kfree(report_lun_header); 1162 1163 if (rc) { 1164 kfree(lun_data); 1165 lun_data = NULL; 1166 } 1167 1168 *buffer = lun_data; 1169 1170 return rc; 1171 } 1172 1173 static inline int pqi_report_phys_luns(struct pqi_ctrl_info *ctrl_info, void **buffer) 1174 { 1175 int rc; 1176 unsigned int i; 1177 u8 rpl_response_format; 1178 u32 num_physicals; 1179 size_t rpl_16byte_wwid_list_length; 1180 void *rpl_list; 1181 struct report_lun_header *rpl_header; 1182 struct report_phys_lun_8byte_wwid_list *rpl_8byte_wwid_list; 1183 struct report_phys_lun_16byte_wwid_list *rpl_16byte_wwid_list; 1184 1185 rc = pqi_report_phys_logical_luns(ctrl_info, CISS_REPORT_PHYS, &rpl_list); 1186 if (rc) 1187 return rc; 1188 1189 if (ctrl_info->rpl_extended_format_4_5_supported) { 1190 rpl_header = rpl_list; 1191 rpl_response_format = rpl_header->flags & CISS_REPORT_PHYS_FLAG_EXTENDED_FORMAT_MASK; 1192 if (rpl_response_format == CISS_REPORT_PHYS_FLAG_EXTENDED_FORMAT_4) { 1193 *buffer = rpl_list; 1194 return 0; 1195 } else if (rpl_response_format != CISS_REPORT_PHYS_FLAG_EXTENDED_FORMAT_2) { 1196 dev_err(&ctrl_info->pci_dev->dev, 1197 "RPL returned unsupported data format %u\n", 1198 rpl_response_format); 1199 return -EINVAL; 1200 } else { 1201 dev_warn(&ctrl_info->pci_dev->dev, 1202 "RPL returned extended format 2 instead of 4\n"); 1203 } 1204 } 1205 1206 rpl_8byte_wwid_list = rpl_list; 1207 num_physicals = get_unaligned_be32(&rpl_8byte_wwid_list->header.list_length) / sizeof(rpl_8byte_wwid_list->lun_entries[0]); 1208 rpl_16byte_wwid_list_length = sizeof(struct report_lun_header) + (num_physicals * sizeof(struct report_phys_lun_16byte_wwid)); 1209 1210 rpl_16byte_wwid_list = kmalloc(rpl_16byte_wwid_list_length, GFP_KERNEL); 1211 if (!rpl_16byte_wwid_list) 1212 return -ENOMEM; 1213 1214 put_unaligned_be32(num_physicals * sizeof(struct report_phys_lun_16byte_wwid), 1215 &rpl_16byte_wwid_list->header.list_length); 1216 rpl_16byte_wwid_list->header.flags = rpl_8byte_wwid_list->header.flags; 1217 1218 for (i = 0; i < num_physicals; i++) { 1219 memcpy(&rpl_16byte_wwid_list->lun_entries[i].lunid, &rpl_8byte_wwid_list->lun_entries[i].lunid, sizeof(rpl_8byte_wwid_list->lun_entries[i].lunid)); 1220 memcpy(&rpl_16byte_wwid_list->lun_entries[i].wwid[0], &rpl_8byte_wwid_list->lun_entries[i].wwid, sizeof(rpl_8byte_wwid_list->lun_entries[i].wwid)); 1221 memset(&rpl_16byte_wwid_list->lun_entries[i].wwid[8], 0, 8); 1222 rpl_16byte_wwid_list->lun_entries[i].device_type = rpl_8byte_wwid_list->lun_entries[i].device_type; 1223 rpl_16byte_wwid_list->lun_entries[i].device_flags = rpl_8byte_wwid_list->lun_entries[i].device_flags; 1224 rpl_16byte_wwid_list->lun_entries[i].lun_count = rpl_8byte_wwid_list->lun_entries[i].lun_count; 1225 rpl_16byte_wwid_list->lun_entries[i].redundant_paths = rpl_8byte_wwid_list->lun_entries[i].redundant_paths; 1226 rpl_16byte_wwid_list->lun_entries[i].aio_handle = rpl_8byte_wwid_list->lun_entries[i].aio_handle; 1227 } 1228 1229 kfree(rpl_8byte_wwid_list); 1230 *buffer = rpl_16byte_wwid_list; 1231 1232 return 0; 1233 } 1234 1235 static inline int pqi_report_logical_luns(struct pqi_ctrl_info *ctrl_info, void **buffer) 1236 { 1237 return pqi_report_phys_logical_luns(ctrl_info, CISS_REPORT_LOG, buffer); 1238 } 1239 1240 static int pqi_get_device_lists(struct pqi_ctrl_info *ctrl_info, 1241 struct report_phys_lun_16byte_wwid_list **physdev_list, 1242 struct report_log_lun_list **logdev_list) 1243 { 1244 int rc; 1245 size_t logdev_list_length; 1246 size_t logdev_data_length; 1247 struct report_log_lun_list *internal_logdev_list; 1248 struct report_log_lun_list *logdev_data; 1249 struct report_lun_header report_lun_header; 1250 1251 rc = pqi_report_phys_luns(ctrl_info, (void **)physdev_list); 1252 if (rc) 1253 dev_err(&ctrl_info->pci_dev->dev, 1254 "report physical LUNs failed\n"); 1255 1256 rc = pqi_report_logical_luns(ctrl_info, (void **)logdev_list); 1257 if (rc) 1258 dev_err(&ctrl_info->pci_dev->dev, 1259 "report logical LUNs failed\n"); 1260 1261 /* 1262 * Tack the controller itself onto the end of the logical device list. 1263 */ 1264 1265 logdev_data = *logdev_list; 1266 1267 if (logdev_data) { 1268 logdev_list_length = 1269 get_unaligned_be32(&logdev_data->header.list_length); 1270 } else { 1271 memset(&report_lun_header, 0, sizeof(report_lun_header)); 1272 logdev_data = 1273 (struct report_log_lun_list *)&report_lun_header; 1274 logdev_list_length = 0; 1275 } 1276 1277 logdev_data_length = sizeof(struct report_lun_header) + 1278 logdev_list_length; 1279 1280 internal_logdev_list = kmalloc(logdev_data_length + 1281 sizeof(struct report_log_lun), GFP_KERNEL); 1282 if (!internal_logdev_list) { 1283 kfree(*logdev_list); 1284 *logdev_list = NULL; 1285 return -ENOMEM; 1286 } 1287 1288 memcpy(internal_logdev_list, logdev_data, logdev_data_length); 1289 memset((u8 *)internal_logdev_list + logdev_data_length, 0, 1290 sizeof(struct report_log_lun)); 1291 put_unaligned_be32(logdev_list_length + 1292 sizeof(struct report_log_lun), 1293 &internal_logdev_list->header.list_length); 1294 1295 kfree(*logdev_list); 1296 *logdev_list = internal_logdev_list; 1297 1298 return 0; 1299 } 1300 1301 static inline void pqi_set_bus_target_lun(struct pqi_scsi_dev *device, 1302 int bus, int target, int lun) 1303 { 1304 device->bus = bus; 1305 device->target = target; 1306 device->lun = lun; 1307 } 1308 1309 static void pqi_assign_bus_target_lun(struct pqi_scsi_dev *device) 1310 { 1311 u8 *scsi3addr; 1312 u32 lunid; 1313 int bus; 1314 int target; 1315 int lun; 1316 1317 scsi3addr = device->scsi3addr; 1318 lunid = get_unaligned_le32(scsi3addr); 1319 1320 if (pqi_is_hba_lunid(scsi3addr)) { 1321 /* The specified device is the controller. */ 1322 pqi_set_bus_target_lun(device, PQI_HBA_BUS, 0, lunid & 0x3fff); 1323 device->target_lun_valid = true; 1324 return; 1325 } 1326 1327 if (pqi_is_logical_device(device)) { 1328 if (device->is_external_raid_device) { 1329 bus = PQI_EXTERNAL_RAID_VOLUME_BUS; 1330 target = (lunid >> 16) & 0x3fff; 1331 lun = lunid & 0xff; 1332 } else { 1333 bus = PQI_RAID_VOLUME_BUS; 1334 target = 0; 1335 lun = lunid & 0x3fff; 1336 } 1337 pqi_set_bus_target_lun(device, bus, target, lun); 1338 device->target_lun_valid = true; 1339 return; 1340 } 1341 1342 /* 1343 * Defer target and LUN assignment for non-controller physical devices 1344 * because the SAS transport layer will make these assignments later. 1345 */ 1346 pqi_set_bus_target_lun(device, PQI_PHYSICAL_DEVICE_BUS, 0, 0); 1347 } 1348 1349 static void pqi_get_raid_level(struct pqi_ctrl_info *ctrl_info, 1350 struct pqi_scsi_dev *device) 1351 { 1352 int rc; 1353 u8 raid_level; 1354 u8 *buffer; 1355 1356 raid_level = SA_RAID_UNKNOWN; 1357 1358 buffer = kmalloc(64, GFP_KERNEL); 1359 if (buffer) { 1360 rc = pqi_scsi_inquiry(ctrl_info, device->scsi3addr, 1361 VPD_PAGE | CISS_VPD_LV_DEVICE_GEOMETRY, buffer, 64); 1362 if (rc == 0) { 1363 raid_level = buffer[8]; 1364 if (raid_level > SA_RAID_MAX) 1365 raid_level = SA_RAID_UNKNOWN; 1366 } 1367 kfree(buffer); 1368 } 1369 1370 device->raid_level = raid_level; 1371 } 1372 1373 static int pqi_validate_raid_map(struct pqi_ctrl_info *ctrl_info, 1374 struct pqi_scsi_dev *device, struct raid_map *raid_map) 1375 { 1376 char *err_msg; 1377 u32 raid_map_size; 1378 u32 r5or6_blocks_per_row; 1379 1380 raid_map_size = get_unaligned_le32(&raid_map->structure_size); 1381 1382 if (raid_map_size < offsetof(struct raid_map, disk_data)) { 1383 err_msg = "RAID map too small"; 1384 goto bad_raid_map; 1385 } 1386 1387 if (device->raid_level == SA_RAID_1) { 1388 if (get_unaligned_le16(&raid_map->layout_map_count) != 2) { 1389 err_msg = "invalid RAID-1 map"; 1390 goto bad_raid_map; 1391 } 1392 } else if (device->raid_level == SA_RAID_TRIPLE) { 1393 if (get_unaligned_le16(&raid_map->layout_map_count) != 3) { 1394 err_msg = "invalid RAID-1(Triple) map"; 1395 goto bad_raid_map; 1396 } 1397 } else if ((device->raid_level == SA_RAID_5 || 1398 device->raid_level == SA_RAID_6) && 1399 get_unaligned_le16(&raid_map->layout_map_count) > 1) { 1400 /* RAID 50/60 */ 1401 r5or6_blocks_per_row = 1402 get_unaligned_le16(&raid_map->strip_size) * 1403 get_unaligned_le16(&raid_map->data_disks_per_row); 1404 if (r5or6_blocks_per_row == 0) { 1405 err_msg = "invalid RAID-5 or RAID-6 map"; 1406 goto bad_raid_map; 1407 } 1408 } 1409 1410 return 0; 1411 1412 bad_raid_map: 1413 dev_warn(&ctrl_info->pci_dev->dev, 1414 "logical device %08x%08x %s\n", 1415 *((u32 *)&device->scsi3addr), 1416 *((u32 *)&device->scsi3addr[4]), err_msg); 1417 1418 return -EINVAL; 1419 } 1420 1421 static int pqi_get_raid_map(struct pqi_ctrl_info *ctrl_info, 1422 struct pqi_scsi_dev *device) 1423 { 1424 int rc; 1425 u32 raid_map_size; 1426 struct raid_map *raid_map; 1427 1428 raid_map = kmalloc(sizeof(*raid_map), GFP_KERNEL); 1429 if (!raid_map) 1430 return -ENOMEM; 1431 1432 rc = pqi_send_scsi_raid_request(ctrl_info, CISS_GET_RAID_MAP, 1433 device->scsi3addr, raid_map, sizeof(*raid_map), 0, NULL); 1434 if (rc) 1435 goto error; 1436 1437 raid_map_size = get_unaligned_le32(&raid_map->structure_size); 1438 1439 if (raid_map_size > sizeof(*raid_map)) { 1440 1441 kfree(raid_map); 1442 1443 raid_map = kmalloc(raid_map_size, GFP_KERNEL); 1444 if (!raid_map) 1445 return -ENOMEM; 1446 1447 rc = pqi_send_scsi_raid_request(ctrl_info, CISS_GET_RAID_MAP, 1448 device->scsi3addr, raid_map, raid_map_size, 0, NULL); 1449 if (rc) 1450 goto error; 1451 1452 if (get_unaligned_le32(&raid_map->structure_size) 1453 != raid_map_size) { 1454 dev_warn(&ctrl_info->pci_dev->dev, 1455 "requested %u bytes, received %u bytes\n", 1456 raid_map_size, 1457 get_unaligned_le32(&raid_map->structure_size)); 1458 rc = -EINVAL; 1459 goto error; 1460 } 1461 } 1462 1463 rc = pqi_validate_raid_map(ctrl_info, device, raid_map); 1464 if (rc) 1465 goto error; 1466 1467 device->raid_map = raid_map; 1468 1469 return 0; 1470 1471 error: 1472 kfree(raid_map); 1473 1474 return rc; 1475 } 1476 1477 static void pqi_set_max_transfer_encrypted(struct pqi_ctrl_info *ctrl_info, 1478 struct pqi_scsi_dev *device) 1479 { 1480 if (!ctrl_info->lv_drive_type_mix_valid) { 1481 device->max_transfer_encrypted = ~0; 1482 return; 1483 } 1484 1485 switch (LV_GET_DRIVE_TYPE_MIX(device->scsi3addr)) { 1486 case LV_DRIVE_TYPE_MIX_SAS_HDD_ONLY: 1487 case LV_DRIVE_TYPE_MIX_SATA_HDD_ONLY: 1488 case LV_DRIVE_TYPE_MIX_SAS_OR_SATA_SSD_ONLY: 1489 case LV_DRIVE_TYPE_MIX_SAS_SSD_ONLY: 1490 case LV_DRIVE_TYPE_MIX_SATA_SSD_ONLY: 1491 case LV_DRIVE_TYPE_MIX_SAS_ONLY: 1492 case LV_DRIVE_TYPE_MIX_SATA_ONLY: 1493 device->max_transfer_encrypted = 1494 ctrl_info->max_transfer_encrypted_sas_sata; 1495 break; 1496 case LV_DRIVE_TYPE_MIX_NVME_ONLY: 1497 device->max_transfer_encrypted = 1498 ctrl_info->max_transfer_encrypted_nvme; 1499 break; 1500 case LV_DRIVE_TYPE_MIX_UNKNOWN: 1501 case LV_DRIVE_TYPE_MIX_NO_RESTRICTION: 1502 default: 1503 device->max_transfer_encrypted = 1504 min(ctrl_info->max_transfer_encrypted_sas_sata, 1505 ctrl_info->max_transfer_encrypted_nvme); 1506 break; 1507 } 1508 } 1509 1510 static void pqi_get_raid_bypass_status(struct pqi_ctrl_info *ctrl_info, 1511 struct pqi_scsi_dev *device) 1512 { 1513 int rc; 1514 u8 *buffer; 1515 u8 bypass_status; 1516 1517 buffer = kmalloc(64, GFP_KERNEL); 1518 if (!buffer) 1519 return; 1520 1521 rc = pqi_scsi_inquiry(ctrl_info, device->scsi3addr, 1522 VPD_PAGE | CISS_VPD_LV_BYPASS_STATUS, buffer, 64); 1523 if (rc) 1524 goto out; 1525 1526 #define RAID_BYPASS_STATUS 4 1527 #define RAID_BYPASS_CONFIGURED 0x1 1528 #define RAID_BYPASS_ENABLED 0x2 1529 1530 bypass_status = buffer[RAID_BYPASS_STATUS]; 1531 device->raid_bypass_configured = 1532 (bypass_status & RAID_BYPASS_CONFIGURED) != 0; 1533 if (device->raid_bypass_configured && 1534 (bypass_status & RAID_BYPASS_ENABLED) && 1535 pqi_get_raid_map(ctrl_info, device) == 0) { 1536 device->raid_bypass_enabled = true; 1537 if (get_unaligned_le16(&device->raid_map->flags) & 1538 RAID_MAP_ENCRYPTION_ENABLED) 1539 pqi_set_max_transfer_encrypted(ctrl_info, device); 1540 } 1541 1542 out: 1543 kfree(buffer); 1544 } 1545 1546 /* 1547 * Use vendor-specific VPD to determine online/offline status of a volume. 1548 */ 1549 1550 static void pqi_get_volume_status(struct pqi_ctrl_info *ctrl_info, 1551 struct pqi_scsi_dev *device) 1552 { 1553 int rc; 1554 size_t page_length; 1555 u8 volume_status = CISS_LV_STATUS_UNAVAILABLE; 1556 bool volume_offline = true; 1557 u32 volume_flags; 1558 struct ciss_vpd_logical_volume_status *vpd; 1559 1560 vpd = kmalloc(sizeof(*vpd), GFP_KERNEL); 1561 if (!vpd) 1562 goto no_buffer; 1563 1564 rc = pqi_scsi_inquiry(ctrl_info, device->scsi3addr, 1565 VPD_PAGE | CISS_VPD_LV_STATUS, vpd, sizeof(*vpd)); 1566 if (rc) 1567 goto out; 1568 1569 if (vpd->page_code != CISS_VPD_LV_STATUS) 1570 goto out; 1571 1572 page_length = offsetof(struct ciss_vpd_logical_volume_status, 1573 volume_status) + vpd->page_length; 1574 if (page_length < sizeof(*vpd)) 1575 goto out; 1576 1577 volume_status = vpd->volume_status; 1578 volume_flags = get_unaligned_be32(&vpd->flags); 1579 volume_offline = (volume_flags & CISS_LV_FLAGS_NO_HOST_IO) != 0; 1580 1581 out: 1582 kfree(vpd); 1583 no_buffer: 1584 device->volume_status = volume_status; 1585 device->volume_offline = volume_offline; 1586 } 1587 1588 #define PQI_DEVICE_NCQ_PRIO_SUPPORTED 0x01 1589 #define PQI_DEVICE_PHY_MAP_SUPPORTED 0x10 1590 1591 static int pqi_get_physical_device_info(struct pqi_ctrl_info *ctrl_info, 1592 struct pqi_scsi_dev *device, 1593 struct bmic_identify_physical_device *id_phys) 1594 { 1595 int rc; 1596 1597 memset(id_phys, 0, sizeof(*id_phys)); 1598 1599 rc = pqi_identify_physical_device(ctrl_info, device, 1600 id_phys, sizeof(*id_phys)); 1601 if (rc) { 1602 device->queue_depth = PQI_PHYSICAL_DISK_DEFAULT_MAX_QUEUE_DEPTH; 1603 return rc; 1604 } 1605 1606 scsi_sanitize_inquiry_string(&id_phys->model[0], 8); 1607 scsi_sanitize_inquiry_string(&id_phys->model[8], 16); 1608 1609 memcpy(device->vendor, &id_phys->model[0], sizeof(device->vendor)); 1610 memcpy(device->model, &id_phys->model[8], sizeof(device->model)); 1611 1612 device->box_index = id_phys->box_index; 1613 device->phys_box_on_bus = id_phys->phys_box_on_bus; 1614 device->phy_connected_dev_type = id_phys->phy_connected_dev_type[0]; 1615 device->queue_depth = 1616 get_unaligned_le16(&id_phys->current_queue_depth_limit); 1617 device->active_path_index = id_phys->active_path_number; 1618 device->path_map = id_phys->redundant_path_present_map; 1619 memcpy(&device->box, 1620 &id_phys->alternate_paths_phys_box_on_port, 1621 sizeof(device->box)); 1622 memcpy(&device->phys_connector, 1623 &id_phys->alternate_paths_phys_connector, 1624 sizeof(device->phys_connector)); 1625 device->bay = id_phys->phys_bay_in_box; 1626 device->lun_count = id_phys->multi_lun_device_lun_count; 1627 if ((id_phys->even_more_flags & PQI_DEVICE_PHY_MAP_SUPPORTED) && 1628 id_phys->phy_count) 1629 device->phy_id = 1630 id_phys->phy_to_phy_map[device->active_path_index]; 1631 else 1632 device->phy_id = 0xFF; 1633 1634 device->ncq_prio_support = 1635 ((get_unaligned_le32(&id_phys->misc_drive_flags) >> 16) & 1636 PQI_DEVICE_NCQ_PRIO_SUPPORTED); 1637 1638 return 0; 1639 } 1640 1641 static int pqi_get_logical_device_info(struct pqi_ctrl_info *ctrl_info, 1642 struct pqi_scsi_dev *device) 1643 { 1644 int rc; 1645 u8 *buffer; 1646 1647 buffer = kmalloc(64, GFP_KERNEL); 1648 if (!buffer) 1649 return -ENOMEM; 1650 1651 /* Send an inquiry to the device to see what it is. */ 1652 rc = pqi_scsi_inquiry(ctrl_info, device->scsi3addr, 0, buffer, 64); 1653 if (rc) 1654 goto out; 1655 1656 scsi_sanitize_inquiry_string(&buffer[8], 8); 1657 scsi_sanitize_inquiry_string(&buffer[16], 16); 1658 1659 device->devtype = buffer[0] & 0x1f; 1660 memcpy(device->vendor, &buffer[8], sizeof(device->vendor)); 1661 memcpy(device->model, &buffer[16], sizeof(device->model)); 1662 1663 if (device->devtype == TYPE_DISK) { 1664 if (device->is_external_raid_device) { 1665 device->raid_level = SA_RAID_UNKNOWN; 1666 device->volume_status = CISS_LV_OK; 1667 device->volume_offline = false; 1668 } else { 1669 pqi_get_raid_level(ctrl_info, device); 1670 pqi_get_raid_bypass_status(ctrl_info, device); 1671 pqi_get_volume_status(ctrl_info, device); 1672 } 1673 } 1674 1675 out: 1676 kfree(buffer); 1677 1678 return rc; 1679 } 1680 1681 /* 1682 * Prevent adding drive to OS for some corner cases such as a drive 1683 * undergoing a sanitize operation. Some OSes will continue to poll 1684 * the drive until the sanitize completes, which can take hours, 1685 * resulting in long bootup delays. Commands such as TUR, READ_CAP 1686 * are allowed, but READ/WRITE cause check condition. So the OS 1687 * cannot check/read the partition table. 1688 * Note: devices that have completed sanitize must be re-enabled 1689 * using the management utility. 1690 */ 1691 static bool pqi_keep_device_offline(struct pqi_ctrl_info *ctrl_info, 1692 struct pqi_scsi_dev *device) 1693 { 1694 u8 scsi_status; 1695 int rc; 1696 enum dma_data_direction dir; 1697 char *buffer; 1698 int buffer_length = 64; 1699 size_t sense_data_length; 1700 struct scsi_sense_hdr sshdr; 1701 struct pqi_raid_path_request request; 1702 struct pqi_raid_error_info error_info; 1703 bool offline = false; /* Assume keep online */ 1704 1705 /* Do not check controllers. */ 1706 if (pqi_is_hba_lunid(device->scsi3addr)) 1707 return false; 1708 1709 /* Do not check LVs. */ 1710 if (pqi_is_logical_device(device)) 1711 return false; 1712 1713 buffer = kmalloc(buffer_length, GFP_KERNEL); 1714 if (!buffer) 1715 return false; /* Assume not offline */ 1716 1717 /* Check for SANITIZE in progress using TUR */ 1718 rc = pqi_build_raid_path_request(ctrl_info, &request, 1719 TEST_UNIT_READY, RAID_CTLR_LUNID, buffer, 1720 buffer_length, 0, &dir); 1721 if (rc) 1722 goto out; /* Assume not offline */ 1723 1724 memcpy(request.lun_number, device->scsi3addr, sizeof(request.lun_number)); 1725 1726 rc = pqi_submit_raid_request_synchronous(ctrl_info, &request.header, 0, &error_info); 1727 1728 if (rc) 1729 goto out; /* Assume not offline */ 1730 1731 scsi_status = error_info.status; 1732 sense_data_length = get_unaligned_le16(&error_info.sense_data_length); 1733 if (sense_data_length == 0) 1734 sense_data_length = 1735 get_unaligned_le16(&error_info.response_data_length); 1736 if (sense_data_length) { 1737 if (sense_data_length > sizeof(error_info.data)) 1738 sense_data_length = sizeof(error_info.data); 1739 1740 /* 1741 * Check for sanitize in progress: asc:0x04, ascq: 0x1b 1742 */ 1743 if (scsi_status == SAM_STAT_CHECK_CONDITION && 1744 scsi_normalize_sense(error_info.data, 1745 sense_data_length, &sshdr) && 1746 sshdr.sense_key == NOT_READY && 1747 sshdr.asc == 0x04 && 1748 sshdr.ascq == 0x1b) { 1749 device->device_offline = true; 1750 offline = true; 1751 goto out; /* Keep device offline */ 1752 } 1753 } 1754 1755 out: 1756 kfree(buffer); 1757 return offline; 1758 } 1759 1760 static int pqi_get_device_info_phys_logical(struct pqi_ctrl_info *ctrl_info, 1761 struct pqi_scsi_dev *device, 1762 struct bmic_identify_physical_device *id_phys) 1763 { 1764 int rc; 1765 1766 if (device->is_expander_smp_device) 1767 return 0; 1768 1769 if (pqi_is_logical_device(device)) 1770 rc = pqi_get_logical_device_info(ctrl_info, device); 1771 else 1772 rc = pqi_get_physical_device_info(ctrl_info, device, id_phys); 1773 1774 return rc; 1775 } 1776 1777 static int pqi_get_device_info(struct pqi_ctrl_info *ctrl_info, 1778 struct pqi_scsi_dev *device, 1779 struct bmic_identify_physical_device *id_phys) 1780 { 1781 int rc; 1782 1783 rc = pqi_get_device_info_phys_logical(ctrl_info, device, id_phys); 1784 1785 if (rc == 0 && device->lun_count == 0) 1786 device->lun_count = 1; 1787 1788 return rc; 1789 } 1790 1791 static void pqi_show_volume_status(struct pqi_ctrl_info *ctrl_info, 1792 struct pqi_scsi_dev *device) 1793 { 1794 char *status; 1795 static const char unknown_state_str[] = 1796 "Volume is in an unknown state (%u)"; 1797 char unknown_state_buffer[sizeof(unknown_state_str) + 10]; 1798 1799 switch (device->volume_status) { 1800 case CISS_LV_OK: 1801 status = "Volume online"; 1802 break; 1803 case CISS_LV_FAILED: 1804 status = "Volume failed"; 1805 break; 1806 case CISS_LV_NOT_CONFIGURED: 1807 status = "Volume not configured"; 1808 break; 1809 case CISS_LV_DEGRADED: 1810 status = "Volume degraded"; 1811 break; 1812 case CISS_LV_READY_FOR_RECOVERY: 1813 status = "Volume ready for recovery operation"; 1814 break; 1815 case CISS_LV_UNDERGOING_RECOVERY: 1816 status = "Volume undergoing recovery"; 1817 break; 1818 case CISS_LV_WRONG_PHYSICAL_DRIVE_REPLACED: 1819 status = "Wrong physical drive was replaced"; 1820 break; 1821 case CISS_LV_PHYSICAL_DRIVE_CONNECTION_PROBLEM: 1822 status = "A physical drive not properly connected"; 1823 break; 1824 case CISS_LV_HARDWARE_OVERHEATING: 1825 status = "Hardware is overheating"; 1826 break; 1827 case CISS_LV_HARDWARE_HAS_OVERHEATED: 1828 status = "Hardware has overheated"; 1829 break; 1830 case CISS_LV_UNDERGOING_EXPANSION: 1831 status = "Volume undergoing expansion"; 1832 break; 1833 case CISS_LV_NOT_AVAILABLE: 1834 status = "Volume waiting for transforming volume"; 1835 break; 1836 case CISS_LV_QUEUED_FOR_EXPANSION: 1837 status = "Volume queued for expansion"; 1838 break; 1839 case CISS_LV_DISABLED_SCSI_ID_CONFLICT: 1840 status = "Volume disabled due to SCSI ID conflict"; 1841 break; 1842 case CISS_LV_EJECTED: 1843 status = "Volume has been ejected"; 1844 break; 1845 case CISS_LV_UNDERGOING_ERASE: 1846 status = "Volume undergoing background erase"; 1847 break; 1848 case CISS_LV_READY_FOR_PREDICTIVE_SPARE_REBUILD: 1849 status = "Volume ready for predictive spare rebuild"; 1850 break; 1851 case CISS_LV_UNDERGOING_RPI: 1852 status = "Volume undergoing rapid parity initialization"; 1853 break; 1854 case CISS_LV_PENDING_RPI: 1855 status = "Volume queued for rapid parity initialization"; 1856 break; 1857 case CISS_LV_ENCRYPTED_NO_KEY: 1858 status = "Encrypted volume inaccessible - key not present"; 1859 break; 1860 case CISS_LV_UNDERGOING_ENCRYPTION: 1861 status = "Volume undergoing encryption process"; 1862 break; 1863 case CISS_LV_UNDERGOING_ENCRYPTION_REKEYING: 1864 status = "Volume undergoing encryption re-keying process"; 1865 break; 1866 case CISS_LV_ENCRYPTED_IN_NON_ENCRYPTED_CONTROLLER: 1867 status = "Volume encrypted but encryption is disabled"; 1868 break; 1869 case CISS_LV_PENDING_ENCRYPTION: 1870 status = "Volume pending migration to encrypted state"; 1871 break; 1872 case CISS_LV_PENDING_ENCRYPTION_REKEYING: 1873 status = "Volume pending encryption rekeying"; 1874 break; 1875 case CISS_LV_NOT_SUPPORTED: 1876 status = "Volume not supported on this controller"; 1877 break; 1878 case CISS_LV_STATUS_UNAVAILABLE: 1879 status = "Volume status not available"; 1880 break; 1881 default: 1882 snprintf(unknown_state_buffer, sizeof(unknown_state_buffer), 1883 unknown_state_str, device->volume_status); 1884 status = unknown_state_buffer; 1885 break; 1886 } 1887 1888 dev_info(&ctrl_info->pci_dev->dev, 1889 "scsi %d:%d:%d:%d %s\n", 1890 ctrl_info->scsi_host->host_no, 1891 device->bus, device->target, device->lun, status); 1892 } 1893 1894 static void pqi_rescan_worker(struct work_struct *work) 1895 { 1896 struct pqi_ctrl_info *ctrl_info; 1897 1898 ctrl_info = container_of(to_delayed_work(work), struct pqi_ctrl_info, 1899 rescan_work); 1900 1901 pqi_scan_scsi_devices(ctrl_info); 1902 } 1903 1904 static int pqi_add_device(struct pqi_ctrl_info *ctrl_info, 1905 struct pqi_scsi_dev *device) 1906 { 1907 int rc; 1908 1909 if (pqi_is_logical_device(device)) 1910 rc = scsi_add_device(ctrl_info->scsi_host, device->bus, 1911 device->target, device->lun); 1912 else 1913 rc = pqi_add_sas_device(ctrl_info->sas_host, device); 1914 1915 return rc; 1916 } 1917 1918 #define PQI_REMOVE_DEVICE_PENDING_IO_TIMEOUT_MSECS (20 * 1000) 1919 1920 static inline void pqi_remove_device(struct pqi_ctrl_info *ctrl_info, struct pqi_scsi_dev *device) 1921 { 1922 int rc; 1923 int lun; 1924 1925 for (lun = 0; lun < device->lun_count; lun++) { 1926 rc = pqi_device_wait_for_pending_io(ctrl_info, device, lun, 1927 PQI_REMOVE_DEVICE_PENDING_IO_TIMEOUT_MSECS); 1928 if (rc) 1929 dev_err(&ctrl_info->pci_dev->dev, 1930 "scsi %d:%d:%d:%d removing device with %d outstanding command(s)\n", 1931 ctrl_info->scsi_host->host_no, device->bus, 1932 device->target, lun, 1933 atomic_read(&device->scsi_cmds_outstanding[lun])); 1934 } 1935 1936 if (pqi_is_logical_device(device)) 1937 scsi_remove_device(device->sdev); 1938 else 1939 pqi_remove_sas_device(device); 1940 1941 pqi_device_remove_start(device); 1942 } 1943 1944 /* Assumes the SCSI device list lock is held. */ 1945 1946 static struct pqi_scsi_dev *pqi_find_scsi_dev(struct pqi_ctrl_info *ctrl_info, 1947 int bus, int target, int lun) 1948 { 1949 struct pqi_scsi_dev *device; 1950 1951 list_for_each_entry(device, &ctrl_info->scsi_device_list, scsi_device_list_entry) 1952 if (device->bus == bus && device->target == target && device->lun == lun) 1953 return device; 1954 1955 return NULL; 1956 } 1957 1958 static inline bool pqi_device_equal(struct pqi_scsi_dev *dev1, struct pqi_scsi_dev *dev2) 1959 { 1960 if (dev1->is_physical_device != dev2->is_physical_device) 1961 return false; 1962 1963 if (dev1->is_physical_device) 1964 return memcmp(dev1->wwid, dev2->wwid, sizeof(dev1->wwid)) == 0; 1965 1966 return memcmp(dev1->volume_id, dev2->volume_id, sizeof(dev1->volume_id)) == 0; 1967 } 1968 1969 enum pqi_find_result { 1970 DEVICE_NOT_FOUND, 1971 DEVICE_CHANGED, 1972 DEVICE_SAME, 1973 }; 1974 1975 static enum pqi_find_result pqi_scsi_find_entry(struct pqi_ctrl_info *ctrl_info, 1976 struct pqi_scsi_dev *device_to_find, struct pqi_scsi_dev **matching_device) 1977 { 1978 struct pqi_scsi_dev *device; 1979 1980 list_for_each_entry(device, &ctrl_info->scsi_device_list, scsi_device_list_entry) { 1981 if (pqi_scsi3addr_equal(device_to_find->scsi3addr, device->scsi3addr)) { 1982 *matching_device = device; 1983 if (pqi_device_equal(device_to_find, device)) { 1984 if (device_to_find->volume_offline) 1985 return DEVICE_CHANGED; 1986 return DEVICE_SAME; 1987 } 1988 return DEVICE_CHANGED; 1989 } 1990 } 1991 1992 return DEVICE_NOT_FOUND; 1993 } 1994 1995 static inline const char *pqi_device_type(struct pqi_scsi_dev *device) 1996 { 1997 if (device->is_expander_smp_device) 1998 return "Enclosure SMP "; 1999 2000 return scsi_device_type(device->devtype); 2001 } 2002 2003 #define PQI_DEV_INFO_BUFFER_LENGTH 128 2004 2005 static void pqi_dev_info(struct pqi_ctrl_info *ctrl_info, 2006 char *action, struct pqi_scsi_dev *device) 2007 { 2008 ssize_t count; 2009 char buffer[PQI_DEV_INFO_BUFFER_LENGTH]; 2010 2011 count = scnprintf(buffer, PQI_DEV_INFO_BUFFER_LENGTH, 2012 "%d:%d:", ctrl_info->scsi_host->host_no, device->bus); 2013 2014 if (device->target_lun_valid) 2015 count += scnprintf(buffer + count, 2016 PQI_DEV_INFO_BUFFER_LENGTH - count, 2017 "%d:%d", 2018 device->target, 2019 device->lun); 2020 else 2021 count += scnprintf(buffer + count, 2022 PQI_DEV_INFO_BUFFER_LENGTH - count, 2023 "-:-"); 2024 2025 if (pqi_is_logical_device(device)) 2026 count += scnprintf(buffer + count, 2027 PQI_DEV_INFO_BUFFER_LENGTH - count, 2028 " %08x%08x", 2029 *((u32 *)&device->scsi3addr), 2030 *((u32 *)&device->scsi3addr[4])); 2031 else 2032 count += scnprintf(buffer + count, 2033 PQI_DEV_INFO_BUFFER_LENGTH - count, 2034 " %016llx%016llx", 2035 get_unaligned_be64(&device->wwid[0]), 2036 get_unaligned_be64(&device->wwid[8])); 2037 2038 count += scnprintf(buffer + count, PQI_DEV_INFO_BUFFER_LENGTH - count, 2039 " %s %.8s %.16s ", 2040 pqi_device_type(device), 2041 device->vendor, 2042 device->model); 2043 2044 if (pqi_is_logical_device(device)) { 2045 if (device->devtype == TYPE_DISK) 2046 count += scnprintf(buffer + count, 2047 PQI_DEV_INFO_BUFFER_LENGTH - count, 2048 "SSDSmartPathCap%c En%c %-12s", 2049 device->raid_bypass_configured ? '+' : '-', 2050 device->raid_bypass_enabled ? '+' : '-', 2051 pqi_raid_level_to_string(device->raid_level)); 2052 } else { 2053 count += scnprintf(buffer + count, 2054 PQI_DEV_INFO_BUFFER_LENGTH - count, 2055 "AIO%c", device->aio_enabled ? '+' : '-'); 2056 if (device->devtype == TYPE_DISK || 2057 device->devtype == TYPE_ZBC) 2058 count += scnprintf(buffer + count, 2059 PQI_DEV_INFO_BUFFER_LENGTH - count, 2060 " qd=%-6d", device->queue_depth); 2061 } 2062 2063 dev_info(&ctrl_info->pci_dev->dev, "%s %s\n", action, buffer); 2064 } 2065 2066 static bool pqi_raid_maps_equal(struct raid_map *raid_map1, struct raid_map *raid_map2) 2067 { 2068 u32 raid_map1_size; 2069 u32 raid_map2_size; 2070 2071 if (raid_map1 == NULL || raid_map2 == NULL) 2072 return raid_map1 == raid_map2; 2073 2074 raid_map1_size = get_unaligned_le32(&raid_map1->structure_size); 2075 raid_map2_size = get_unaligned_le32(&raid_map2->structure_size); 2076 2077 if (raid_map1_size != raid_map2_size) 2078 return false; 2079 2080 return memcmp(raid_map1, raid_map2, raid_map1_size) == 0; 2081 } 2082 2083 /* Assumes the SCSI device list lock is held. */ 2084 2085 static void pqi_scsi_update_device(struct pqi_ctrl_info *ctrl_info, 2086 struct pqi_scsi_dev *existing_device, struct pqi_scsi_dev *new_device) 2087 { 2088 existing_device->device_type = new_device->device_type; 2089 existing_device->bus = new_device->bus; 2090 if (new_device->target_lun_valid) { 2091 existing_device->target = new_device->target; 2092 existing_device->lun = new_device->lun; 2093 existing_device->target_lun_valid = true; 2094 } 2095 2096 /* By definition, the scsi3addr and wwid fields are already the same. */ 2097 2098 existing_device->is_physical_device = new_device->is_physical_device; 2099 memcpy(existing_device->vendor, new_device->vendor, sizeof(existing_device->vendor)); 2100 memcpy(existing_device->model, new_device->model, sizeof(existing_device->model)); 2101 existing_device->sas_address = new_device->sas_address; 2102 existing_device->queue_depth = new_device->queue_depth; 2103 existing_device->device_offline = false; 2104 existing_device->lun_count = new_device->lun_count; 2105 2106 if (pqi_is_logical_device(existing_device)) { 2107 existing_device->is_external_raid_device = new_device->is_external_raid_device; 2108 2109 if (existing_device->devtype == TYPE_DISK) { 2110 existing_device->raid_level = new_device->raid_level; 2111 existing_device->volume_status = new_device->volume_status; 2112 if (ctrl_info->logical_volume_rescan_needed) 2113 existing_device->rescan = true; 2114 memset(existing_device->next_bypass_group, 0, sizeof(existing_device->next_bypass_group)); 2115 if (!pqi_raid_maps_equal(existing_device->raid_map, new_device->raid_map)) { 2116 kfree(existing_device->raid_map); 2117 existing_device->raid_map = new_device->raid_map; 2118 /* To prevent this from being freed later. */ 2119 new_device->raid_map = NULL; 2120 } 2121 existing_device->raid_bypass_configured = new_device->raid_bypass_configured; 2122 existing_device->raid_bypass_enabled = new_device->raid_bypass_enabled; 2123 } 2124 } else { 2125 existing_device->aio_enabled = new_device->aio_enabled; 2126 existing_device->aio_handle = new_device->aio_handle; 2127 existing_device->is_expander_smp_device = new_device->is_expander_smp_device; 2128 existing_device->active_path_index = new_device->active_path_index; 2129 existing_device->phy_id = new_device->phy_id; 2130 existing_device->path_map = new_device->path_map; 2131 existing_device->bay = new_device->bay; 2132 existing_device->box_index = new_device->box_index; 2133 existing_device->phys_box_on_bus = new_device->phys_box_on_bus; 2134 existing_device->phy_connected_dev_type = new_device->phy_connected_dev_type; 2135 memcpy(existing_device->box, new_device->box, sizeof(existing_device->box)); 2136 memcpy(existing_device->phys_connector, new_device->phys_connector, sizeof(existing_device->phys_connector)); 2137 } 2138 } 2139 2140 static inline void pqi_free_device(struct pqi_scsi_dev *device) 2141 { 2142 if (device) { 2143 kfree(device->raid_map); 2144 kfree(device); 2145 } 2146 } 2147 2148 /* 2149 * Called when exposing a new device to the OS fails in order to re-adjust 2150 * our internal SCSI device list to match the SCSI ML's view. 2151 */ 2152 2153 static inline void pqi_fixup_botched_add(struct pqi_ctrl_info *ctrl_info, 2154 struct pqi_scsi_dev *device) 2155 { 2156 unsigned long flags; 2157 2158 spin_lock_irqsave(&ctrl_info->scsi_device_list_lock, flags); 2159 list_del(&device->scsi_device_list_entry); 2160 spin_unlock_irqrestore(&ctrl_info->scsi_device_list_lock, flags); 2161 2162 /* Allow the device structure to be freed later. */ 2163 device->keep_device = false; 2164 } 2165 2166 static inline bool pqi_is_device_added(struct pqi_scsi_dev *device) 2167 { 2168 if (device->is_expander_smp_device) 2169 return device->sas_port != NULL; 2170 2171 return device->sdev != NULL; 2172 } 2173 2174 static void pqi_update_device_list(struct pqi_ctrl_info *ctrl_info, 2175 struct pqi_scsi_dev *new_device_list[], unsigned int num_new_devices) 2176 { 2177 int rc; 2178 unsigned int i; 2179 unsigned long flags; 2180 enum pqi_find_result find_result; 2181 struct pqi_scsi_dev *device; 2182 struct pqi_scsi_dev *next; 2183 struct pqi_scsi_dev *matching_device; 2184 LIST_HEAD(add_list); 2185 LIST_HEAD(delete_list); 2186 2187 /* 2188 * The idea here is to do as little work as possible while holding the 2189 * spinlock. That's why we go to great pains to defer anything other 2190 * than updating the internal device list until after we release the 2191 * spinlock. 2192 */ 2193 2194 spin_lock_irqsave(&ctrl_info->scsi_device_list_lock, flags); 2195 2196 /* Assume that all devices in the existing list have gone away. */ 2197 list_for_each_entry(device, &ctrl_info->scsi_device_list, scsi_device_list_entry) 2198 device->device_gone = true; 2199 2200 for (i = 0; i < num_new_devices; i++) { 2201 device = new_device_list[i]; 2202 2203 find_result = pqi_scsi_find_entry(ctrl_info, device, 2204 &matching_device); 2205 2206 switch (find_result) { 2207 case DEVICE_SAME: 2208 /* 2209 * The newly found device is already in the existing 2210 * device list. 2211 */ 2212 device->new_device = false; 2213 matching_device->device_gone = false; 2214 pqi_scsi_update_device(ctrl_info, matching_device, device); 2215 break; 2216 case DEVICE_NOT_FOUND: 2217 /* 2218 * The newly found device is NOT in the existing device 2219 * list. 2220 */ 2221 device->new_device = true; 2222 break; 2223 case DEVICE_CHANGED: 2224 /* 2225 * The original device has gone away and we need to add 2226 * the new device. 2227 */ 2228 device->new_device = true; 2229 break; 2230 } 2231 } 2232 2233 /* Process all devices that have gone away. */ 2234 list_for_each_entry_safe(device, next, &ctrl_info->scsi_device_list, 2235 scsi_device_list_entry) { 2236 if (device->device_gone) { 2237 list_del(&device->scsi_device_list_entry); 2238 list_add_tail(&device->delete_list_entry, &delete_list); 2239 } 2240 } 2241 2242 /* Process all new devices. */ 2243 for (i = 0; i < num_new_devices; i++) { 2244 device = new_device_list[i]; 2245 if (!device->new_device) 2246 continue; 2247 if (device->volume_offline) 2248 continue; 2249 list_add_tail(&device->scsi_device_list_entry, 2250 &ctrl_info->scsi_device_list); 2251 list_add_tail(&device->add_list_entry, &add_list); 2252 /* To prevent this device structure from being freed later. */ 2253 device->keep_device = true; 2254 } 2255 2256 spin_unlock_irqrestore(&ctrl_info->scsi_device_list_lock, flags); 2257 2258 /* 2259 * If OFA is in progress and there are devices that need to be deleted, 2260 * allow any pending reset operations to continue and unblock any SCSI 2261 * requests before removal. 2262 */ 2263 if (pqi_ofa_in_progress(ctrl_info)) { 2264 list_for_each_entry_safe(device, next, &delete_list, delete_list_entry) 2265 if (pqi_is_device_added(device)) 2266 pqi_device_remove_start(device); 2267 pqi_ctrl_unblock_device_reset(ctrl_info); 2268 pqi_scsi_unblock_requests(ctrl_info); 2269 } 2270 2271 /* Remove all devices that have gone away. */ 2272 list_for_each_entry_safe(device, next, &delete_list, delete_list_entry) { 2273 if (device->volume_offline) { 2274 pqi_dev_info(ctrl_info, "offline", device); 2275 pqi_show_volume_status(ctrl_info, device); 2276 } else { 2277 pqi_dev_info(ctrl_info, "removed", device); 2278 } 2279 if (pqi_is_device_added(device)) 2280 pqi_remove_device(ctrl_info, device); 2281 list_del(&device->delete_list_entry); 2282 pqi_free_device(device); 2283 } 2284 2285 /* 2286 * Notify the SML of any existing device changes such as; 2287 * queue depth, device size. 2288 */ 2289 list_for_each_entry(device, &ctrl_info->scsi_device_list, scsi_device_list_entry) { 2290 if (device->sdev && device->queue_depth != device->advertised_queue_depth) { 2291 device->advertised_queue_depth = device->queue_depth; 2292 scsi_change_queue_depth(device->sdev, device->advertised_queue_depth); 2293 if (device->rescan) { 2294 scsi_rescan_device(&device->sdev->sdev_gendev); 2295 device->rescan = false; 2296 } 2297 } 2298 } 2299 2300 /* Expose any new devices. */ 2301 list_for_each_entry_safe(device, next, &add_list, add_list_entry) { 2302 if (!pqi_is_device_added(device)) { 2303 rc = pqi_add_device(ctrl_info, device); 2304 if (rc == 0) { 2305 pqi_dev_info(ctrl_info, "added", device); 2306 } else { 2307 dev_warn(&ctrl_info->pci_dev->dev, 2308 "scsi %d:%d:%d:%d addition failed, device not added\n", 2309 ctrl_info->scsi_host->host_no, 2310 device->bus, device->target, 2311 device->lun); 2312 pqi_fixup_botched_add(ctrl_info, device); 2313 } 2314 } 2315 } 2316 2317 ctrl_info->logical_volume_rescan_needed = false; 2318 2319 } 2320 2321 static inline bool pqi_is_supported_device(struct pqi_scsi_dev *device) 2322 { 2323 /* 2324 * Only support the HBA controller itself as a RAID 2325 * controller. If it's a RAID controller other than 2326 * the HBA itself (an external RAID controller, for 2327 * example), we don't support it. 2328 */ 2329 if (device->device_type == SA_DEVICE_TYPE_CONTROLLER && 2330 !pqi_is_hba_lunid(device->scsi3addr)) 2331 return false; 2332 2333 return true; 2334 } 2335 2336 static inline bool pqi_skip_device(u8 *scsi3addr) 2337 { 2338 /* Ignore all masked devices. */ 2339 if (MASKED_DEVICE(scsi3addr)) 2340 return true; 2341 2342 return false; 2343 } 2344 2345 static inline void pqi_mask_device(u8 *scsi3addr) 2346 { 2347 scsi3addr[3] |= 0xc0; 2348 } 2349 2350 static inline bool pqi_is_multipath_device(struct pqi_scsi_dev *device) 2351 { 2352 if (pqi_is_logical_device(device)) 2353 return false; 2354 2355 return (device->path_map & (device->path_map - 1)) != 0; 2356 } 2357 2358 static inline bool pqi_expose_device(struct pqi_scsi_dev *device) 2359 { 2360 return !device->is_physical_device || !pqi_skip_device(device->scsi3addr); 2361 } 2362 2363 static int pqi_update_scsi_devices(struct pqi_ctrl_info *ctrl_info) 2364 { 2365 int i; 2366 int rc; 2367 LIST_HEAD(new_device_list_head); 2368 struct report_phys_lun_16byte_wwid_list *physdev_list = NULL; 2369 struct report_log_lun_list *logdev_list = NULL; 2370 struct report_phys_lun_16byte_wwid *phys_lun; 2371 struct report_log_lun *log_lun; 2372 struct bmic_identify_physical_device *id_phys = NULL; 2373 u32 num_physicals; 2374 u32 num_logicals; 2375 struct pqi_scsi_dev **new_device_list = NULL; 2376 struct pqi_scsi_dev *device; 2377 struct pqi_scsi_dev *next; 2378 unsigned int num_new_devices; 2379 unsigned int num_valid_devices; 2380 bool is_physical_device; 2381 u8 *scsi3addr; 2382 unsigned int physical_index; 2383 unsigned int logical_index; 2384 static char *out_of_memory_msg = 2385 "failed to allocate memory, device discovery stopped"; 2386 2387 rc = pqi_get_device_lists(ctrl_info, &physdev_list, &logdev_list); 2388 if (rc) 2389 goto out; 2390 2391 if (physdev_list) 2392 num_physicals = 2393 get_unaligned_be32(&physdev_list->header.list_length) 2394 / sizeof(physdev_list->lun_entries[0]); 2395 else 2396 num_physicals = 0; 2397 2398 if (logdev_list) 2399 num_logicals = 2400 get_unaligned_be32(&logdev_list->header.list_length) 2401 / sizeof(logdev_list->lun_entries[0]); 2402 else 2403 num_logicals = 0; 2404 2405 if (num_physicals) { 2406 /* 2407 * We need this buffer for calls to pqi_get_physical_disk_info() 2408 * below. We allocate it here instead of inside 2409 * pqi_get_physical_disk_info() because it's a fairly large 2410 * buffer. 2411 */ 2412 id_phys = kmalloc(sizeof(*id_phys), GFP_KERNEL); 2413 if (!id_phys) { 2414 dev_warn(&ctrl_info->pci_dev->dev, "%s\n", 2415 out_of_memory_msg); 2416 rc = -ENOMEM; 2417 goto out; 2418 } 2419 2420 if (pqi_hide_vsep) { 2421 for (i = num_physicals - 1; i >= 0; i--) { 2422 phys_lun = &physdev_list->lun_entries[i]; 2423 if (CISS_GET_DRIVE_NUMBER(phys_lun->lunid) == PQI_VSEP_CISS_BTL) { 2424 pqi_mask_device(phys_lun->lunid); 2425 break; 2426 } 2427 } 2428 } 2429 } 2430 2431 if (num_logicals && 2432 (logdev_list->header.flags & CISS_REPORT_LOG_FLAG_DRIVE_TYPE_MIX)) 2433 ctrl_info->lv_drive_type_mix_valid = true; 2434 2435 num_new_devices = num_physicals + num_logicals; 2436 2437 new_device_list = kmalloc_array(num_new_devices, 2438 sizeof(*new_device_list), 2439 GFP_KERNEL); 2440 if (!new_device_list) { 2441 dev_warn(&ctrl_info->pci_dev->dev, "%s\n", out_of_memory_msg); 2442 rc = -ENOMEM; 2443 goto out; 2444 } 2445 2446 for (i = 0; i < num_new_devices; i++) { 2447 device = kzalloc(sizeof(*device), GFP_KERNEL); 2448 if (!device) { 2449 dev_warn(&ctrl_info->pci_dev->dev, "%s\n", 2450 out_of_memory_msg); 2451 rc = -ENOMEM; 2452 goto out; 2453 } 2454 list_add_tail(&device->new_device_list_entry, 2455 &new_device_list_head); 2456 } 2457 2458 device = NULL; 2459 num_valid_devices = 0; 2460 physical_index = 0; 2461 logical_index = 0; 2462 2463 for (i = 0; i < num_new_devices; i++) { 2464 2465 if ((!pqi_expose_ld_first && i < num_physicals) || 2466 (pqi_expose_ld_first && i >= num_logicals)) { 2467 is_physical_device = true; 2468 phys_lun = &physdev_list->lun_entries[physical_index++]; 2469 log_lun = NULL; 2470 scsi3addr = phys_lun->lunid; 2471 } else { 2472 is_physical_device = false; 2473 phys_lun = NULL; 2474 log_lun = &logdev_list->lun_entries[logical_index++]; 2475 scsi3addr = log_lun->lunid; 2476 } 2477 2478 if (is_physical_device && pqi_skip_device(scsi3addr)) 2479 continue; 2480 2481 if (device) 2482 device = list_next_entry(device, new_device_list_entry); 2483 else 2484 device = list_first_entry(&new_device_list_head, 2485 struct pqi_scsi_dev, new_device_list_entry); 2486 2487 memcpy(device->scsi3addr, scsi3addr, sizeof(device->scsi3addr)); 2488 device->is_physical_device = is_physical_device; 2489 if (is_physical_device) { 2490 device->device_type = phys_lun->device_type; 2491 if (device->device_type == SA_DEVICE_TYPE_EXPANDER_SMP) 2492 device->is_expander_smp_device = true; 2493 } else { 2494 device->is_external_raid_device = 2495 pqi_is_external_raid_addr(scsi3addr); 2496 } 2497 2498 if (!pqi_is_supported_device(device)) 2499 continue; 2500 2501 /* Do not present disks that the OS cannot fully probe */ 2502 if (pqi_keep_device_offline(ctrl_info, device)) 2503 continue; 2504 2505 /* Gather information about the device. */ 2506 rc = pqi_get_device_info(ctrl_info, device, id_phys); 2507 if (rc == -ENOMEM) { 2508 dev_warn(&ctrl_info->pci_dev->dev, "%s\n", 2509 out_of_memory_msg); 2510 goto out; 2511 } 2512 if (rc) { 2513 if (device->is_physical_device) 2514 dev_warn(&ctrl_info->pci_dev->dev, 2515 "obtaining device info failed, skipping physical device %016llx%016llx\n", 2516 get_unaligned_be64(&phys_lun->wwid[0]), 2517 get_unaligned_be64(&phys_lun->wwid[8])); 2518 else 2519 dev_warn(&ctrl_info->pci_dev->dev, 2520 "obtaining device info failed, skipping logical device %08x%08x\n", 2521 *((u32 *)&device->scsi3addr), 2522 *((u32 *)&device->scsi3addr[4])); 2523 rc = 0; 2524 continue; 2525 } 2526 2527 pqi_assign_bus_target_lun(device); 2528 2529 if (device->is_physical_device) { 2530 memcpy(device->wwid, phys_lun->wwid, sizeof(device->wwid)); 2531 if ((phys_lun->device_flags & 2532 CISS_REPORT_PHYS_DEV_FLAG_AIO_ENABLED) && 2533 phys_lun->aio_handle) { 2534 device->aio_enabled = true; 2535 device->aio_handle = 2536 phys_lun->aio_handle; 2537 } 2538 } else { 2539 memcpy(device->volume_id, log_lun->volume_id, 2540 sizeof(device->volume_id)); 2541 } 2542 2543 device->sas_address = get_unaligned_be64(&device->wwid[0]); 2544 2545 new_device_list[num_valid_devices++] = device; 2546 } 2547 2548 pqi_update_device_list(ctrl_info, new_device_list, num_valid_devices); 2549 2550 out: 2551 list_for_each_entry_safe(device, next, &new_device_list_head, 2552 new_device_list_entry) { 2553 if (device->keep_device) 2554 continue; 2555 list_del(&device->new_device_list_entry); 2556 pqi_free_device(device); 2557 } 2558 2559 kfree(new_device_list); 2560 kfree(physdev_list); 2561 kfree(logdev_list); 2562 kfree(id_phys); 2563 2564 return rc; 2565 } 2566 2567 static int pqi_scan_scsi_devices(struct pqi_ctrl_info *ctrl_info) 2568 { 2569 int rc; 2570 int mutex_acquired; 2571 2572 if (pqi_ctrl_offline(ctrl_info)) 2573 return -ENXIO; 2574 2575 mutex_acquired = mutex_trylock(&ctrl_info->scan_mutex); 2576 2577 if (!mutex_acquired) { 2578 if (pqi_ctrl_scan_blocked(ctrl_info)) 2579 return -EBUSY; 2580 pqi_schedule_rescan_worker_delayed(ctrl_info); 2581 return -EINPROGRESS; 2582 } 2583 2584 rc = pqi_update_scsi_devices(ctrl_info); 2585 if (rc && !pqi_ctrl_scan_blocked(ctrl_info)) 2586 pqi_schedule_rescan_worker_delayed(ctrl_info); 2587 2588 mutex_unlock(&ctrl_info->scan_mutex); 2589 2590 return rc; 2591 } 2592 2593 static void pqi_scan_start(struct Scsi_Host *shost) 2594 { 2595 struct pqi_ctrl_info *ctrl_info; 2596 2597 ctrl_info = shost_to_hba(shost); 2598 2599 pqi_scan_scsi_devices(ctrl_info); 2600 } 2601 2602 /* Returns TRUE if scan is finished. */ 2603 2604 static int pqi_scan_finished(struct Scsi_Host *shost, 2605 unsigned long elapsed_time) 2606 { 2607 struct pqi_ctrl_info *ctrl_info; 2608 2609 ctrl_info = shost_priv(shost); 2610 2611 return !mutex_is_locked(&ctrl_info->scan_mutex); 2612 } 2613 2614 static inline void pqi_set_encryption_info(struct pqi_encryption_info *encryption_info, 2615 struct raid_map *raid_map, u64 first_block) 2616 { 2617 u32 volume_blk_size; 2618 2619 /* 2620 * Set the encryption tweak values based on logical block address. 2621 * If the block size is 512, the tweak value is equal to the LBA. 2622 * For other block sizes, tweak value is (LBA * block size) / 512. 2623 */ 2624 volume_blk_size = get_unaligned_le32(&raid_map->volume_blk_size); 2625 if (volume_blk_size != 512) 2626 first_block = (first_block * volume_blk_size) / 512; 2627 2628 encryption_info->data_encryption_key_index = 2629 get_unaligned_le16(&raid_map->data_encryption_key_index); 2630 encryption_info->encrypt_tweak_lower = lower_32_bits(first_block); 2631 encryption_info->encrypt_tweak_upper = upper_32_bits(first_block); 2632 } 2633 2634 /* 2635 * Attempt to perform RAID bypass mapping for a logical volume I/O. 2636 */ 2637 2638 static bool pqi_aio_raid_level_supported(struct pqi_ctrl_info *ctrl_info, 2639 struct pqi_scsi_dev_raid_map_data *rmd) 2640 { 2641 bool is_supported = true; 2642 2643 switch (rmd->raid_level) { 2644 case SA_RAID_0: 2645 break; 2646 case SA_RAID_1: 2647 if (rmd->is_write && (!ctrl_info->enable_r1_writes || 2648 rmd->data_length > ctrl_info->max_write_raid_1_10_2drive)) 2649 is_supported = false; 2650 break; 2651 case SA_RAID_TRIPLE: 2652 if (rmd->is_write && (!ctrl_info->enable_r1_writes || 2653 rmd->data_length > ctrl_info->max_write_raid_1_10_3drive)) 2654 is_supported = false; 2655 break; 2656 case SA_RAID_5: 2657 if (rmd->is_write && (!ctrl_info->enable_r5_writes || 2658 rmd->data_length > ctrl_info->max_write_raid_5_6)) 2659 is_supported = false; 2660 break; 2661 case SA_RAID_6: 2662 if (rmd->is_write && (!ctrl_info->enable_r6_writes || 2663 rmd->data_length > ctrl_info->max_write_raid_5_6)) 2664 is_supported = false; 2665 break; 2666 default: 2667 is_supported = false; 2668 break; 2669 } 2670 2671 return is_supported; 2672 } 2673 2674 #define PQI_RAID_BYPASS_INELIGIBLE 1 2675 2676 static int pqi_get_aio_lba_and_block_count(struct scsi_cmnd *scmd, 2677 struct pqi_scsi_dev_raid_map_data *rmd) 2678 { 2679 /* Check for valid opcode, get LBA and block count. */ 2680 switch (scmd->cmnd[0]) { 2681 case WRITE_6: 2682 rmd->is_write = true; 2683 fallthrough; 2684 case READ_6: 2685 rmd->first_block = (u64)(((scmd->cmnd[1] & 0x1f) << 16) | 2686 (scmd->cmnd[2] << 8) | scmd->cmnd[3]); 2687 rmd->block_cnt = (u32)scmd->cmnd[4]; 2688 if (rmd->block_cnt == 0) 2689 rmd->block_cnt = 256; 2690 break; 2691 case WRITE_10: 2692 rmd->is_write = true; 2693 fallthrough; 2694 case READ_10: 2695 rmd->first_block = (u64)get_unaligned_be32(&scmd->cmnd[2]); 2696 rmd->block_cnt = (u32)get_unaligned_be16(&scmd->cmnd[7]); 2697 break; 2698 case WRITE_12: 2699 rmd->is_write = true; 2700 fallthrough; 2701 case READ_12: 2702 rmd->first_block = (u64)get_unaligned_be32(&scmd->cmnd[2]); 2703 rmd->block_cnt = get_unaligned_be32(&scmd->cmnd[6]); 2704 break; 2705 case WRITE_16: 2706 rmd->is_write = true; 2707 fallthrough; 2708 case READ_16: 2709 rmd->first_block = get_unaligned_be64(&scmd->cmnd[2]); 2710 rmd->block_cnt = get_unaligned_be32(&scmd->cmnd[10]); 2711 break; 2712 default: 2713 /* Process via normal I/O path. */ 2714 return PQI_RAID_BYPASS_INELIGIBLE; 2715 } 2716 2717 put_unaligned_le32(scsi_bufflen(scmd), &rmd->data_length); 2718 2719 return 0; 2720 } 2721 2722 static int pci_get_aio_common_raid_map_values(struct pqi_ctrl_info *ctrl_info, 2723 struct pqi_scsi_dev_raid_map_data *rmd, struct raid_map *raid_map) 2724 { 2725 #if BITS_PER_LONG == 32 2726 u64 tmpdiv; 2727 #endif 2728 2729 rmd->last_block = rmd->first_block + rmd->block_cnt - 1; 2730 2731 /* Check for invalid block or wraparound. */ 2732 if (rmd->last_block >= 2733 get_unaligned_le64(&raid_map->volume_blk_cnt) || 2734 rmd->last_block < rmd->first_block) 2735 return PQI_RAID_BYPASS_INELIGIBLE; 2736 2737 rmd->data_disks_per_row = 2738 get_unaligned_le16(&raid_map->data_disks_per_row); 2739 rmd->strip_size = get_unaligned_le16(&raid_map->strip_size); 2740 rmd->layout_map_count = get_unaligned_le16(&raid_map->layout_map_count); 2741 2742 /* Calculate stripe information for the request. */ 2743 rmd->blocks_per_row = rmd->data_disks_per_row * rmd->strip_size; 2744 if (rmd->blocks_per_row == 0) /* Used as a divisor in many calculations */ 2745 return PQI_RAID_BYPASS_INELIGIBLE; 2746 #if BITS_PER_LONG == 32 2747 tmpdiv = rmd->first_block; 2748 do_div(tmpdiv, rmd->blocks_per_row); 2749 rmd->first_row = tmpdiv; 2750 tmpdiv = rmd->last_block; 2751 do_div(tmpdiv, rmd->blocks_per_row); 2752 rmd->last_row = tmpdiv; 2753 rmd->first_row_offset = (u32)(rmd->first_block - (rmd->first_row * rmd->blocks_per_row)); 2754 rmd->last_row_offset = (u32)(rmd->last_block - (rmd->last_row * rmd->blocks_per_row)); 2755 tmpdiv = rmd->first_row_offset; 2756 do_div(tmpdiv, rmd->strip_size); 2757 rmd->first_column = tmpdiv; 2758 tmpdiv = rmd->last_row_offset; 2759 do_div(tmpdiv, rmd->strip_size); 2760 rmd->last_column = tmpdiv; 2761 #else 2762 rmd->first_row = rmd->first_block / rmd->blocks_per_row; 2763 rmd->last_row = rmd->last_block / rmd->blocks_per_row; 2764 rmd->first_row_offset = (u32)(rmd->first_block - 2765 (rmd->first_row * rmd->blocks_per_row)); 2766 rmd->last_row_offset = (u32)(rmd->last_block - (rmd->last_row * 2767 rmd->blocks_per_row)); 2768 rmd->first_column = rmd->first_row_offset / rmd->strip_size; 2769 rmd->last_column = rmd->last_row_offset / rmd->strip_size; 2770 #endif 2771 2772 /* If this isn't a single row/column then give to the controller. */ 2773 if (rmd->first_row != rmd->last_row || 2774 rmd->first_column != rmd->last_column) 2775 return PQI_RAID_BYPASS_INELIGIBLE; 2776 2777 /* Proceeding with driver mapping. */ 2778 rmd->total_disks_per_row = rmd->data_disks_per_row + 2779 get_unaligned_le16(&raid_map->metadata_disks_per_row); 2780 rmd->map_row = ((u32)(rmd->first_row >> 2781 raid_map->parity_rotation_shift)) % 2782 get_unaligned_le16(&raid_map->row_cnt); 2783 rmd->map_index = (rmd->map_row * rmd->total_disks_per_row) + 2784 rmd->first_column; 2785 2786 return 0; 2787 } 2788 2789 static int pqi_calc_aio_r5_or_r6(struct pqi_scsi_dev_raid_map_data *rmd, 2790 struct raid_map *raid_map) 2791 { 2792 #if BITS_PER_LONG == 32 2793 u64 tmpdiv; 2794 #endif 2795 2796 if (rmd->blocks_per_row == 0) /* Used as a divisor in many calculations */ 2797 return PQI_RAID_BYPASS_INELIGIBLE; 2798 2799 /* RAID 50/60 */ 2800 /* Verify first and last block are in same RAID group. */ 2801 rmd->stripesize = rmd->blocks_per_row * rmd->layout_map_count; 2802 #if BITS_PER_LONG == 32 2803 tmpdiv = rmd->first_block; 2804 rmd->first_group = do_div(tmpdiv, rmd->stripesize); 2805 tmpdiv = rmd->first_group; 2806 do_div(tmpdiv, rmd->blocks_per_row); 2807 rmd->first_group = tmpdiv; 2808 tmpdiv = rmd->last_block; 2809 rmd->last_group = do_div(tmpdiv, rmd->stripesize); 2810 tmpdiv = rmd->last_group; 2811 do_div(tmpdiv, rmd->blocks_per_row); 2812 rmd->last_group = tmpdiv; 2813 #else 2814 rmd->first_group = (rmd->first_block % rmd->stripesize) / rmd->blocks_per_row; 2815 rmd->last_group = (rmd->last_block % rmd->stripesize) / rmd->blocks_per_row; 2816 #endif 2817 if (rmd->first_group != rmd->last_group) 2818 return PQI_RAID_BYPASS_INELIGIBLE; 2819 2820 /* Verify request is in a single row of RAID 5/6. */ 2821 #if BITS_PER_LONG == 32 2822 tmpdiv = rmd->first_block; 2823 do_div(tmpdiv, rmd->stripesize); 2824 rmd->first_row = tmpdiv; 2825 rmd->r5or6_first_row = tmpdiv; 2826 tmpdiv = rmd->last_block; 2827 do_div(tmpdiv, rmd->stripesize); 2828 rmd->r5or6_last_row = tmpdiv; 2829 #else 2830 rmd->first_row = rmd->r5or6_first_row = 2831 rmd->first_block / rmd->stripesize; 2832 rmd->r5or6_last_row = rmd->last_block / rmd->stripesize; 2833 #endif 2834 if (rmd->r5or6_first_row != rmd->r5or6_last_row) 2835 return PQI_RAID_BYPASS_INELIGIBLE; 2836 2837 /* Verify request is in a single column. */ 2838 #if BITS_PER_LONG == 32 2839 tmpdiv = rmd->first_block; 2840 rmd->first_row_offset = do_div(tmpdiv, rmd->stripesize); 2841 tmpdiv = rmd->first_row_offset; 2842 rmd->first_row_offset = (u32)do_div(tmpdiv, rmd->blocks_per_row); 2843 rmd->r5or6_first_row_offset = rmd->first_row_offset; 2844 tmpdiv = rmd->last_block; 2845 rmd->r5or6_last_row_offset = do_div(tmpdiv, rmd->stripesize); 2846 tmpdiv = rmd->r5or6_last_row_offset; 2847 rmd->r5or6_last_row_offset = do_div(tmpdiv, rmd->blocks_per_row); 2848 tmpdiv = rmd->r5or6_first_row_offset; 2849 do_div(tmpdiv, rmd->strip_size); 2850 rmd->first_column = rmd->r5or6_first_column = tmpdiv; 2851 tmpdiv = rmd->r5or6_last_row_offset; 2852 do_div(tmpdiv, rmd->strip_size); 2853 rmd->r5or6_last_column = tmpdiv; 2854 #else 2855 rmd->first_row_offset = rmd->r5or6_first_row_offset = 2856 (u32)((rmd->first_block % rmd->stripesize) % 2857 rmd->blocks_per_row); 2858 2859 rmd->r5or6_last_row_offset = 2860 (u32)((rmd->last_block % rmd->stripesize) % 2861 rmd->blocks_per_row); 2862 2863 rmd->first_column = 2864 rmd->r5or6_first_row_offset / rmd->strip_size; 2865 rmd->r5or6_first_column = rmd->first_column; 2866 rmd->r5or6_last_column = rmd->r5or6_last_row_offset / rmd->strip_size; 2867 #endif 2868 if (rmd->r5or6_first_column != rmd->r5or6_last_column) 2869 return PQI_RAID_BYPASS_INELIGIBLE; 2870 2871 /* Request is eligible. */ 2872 rmd->map_row = 2873 ((u32)(rmd->first_row >> raid_map->parity_rotation_shift)) % 2874 get_unaligned_le16(&raid_map->row_cnt); 2875 2876 rmd->map_index = (rmd->first_group * 2877 (get_unaligned_le16(&raid_map->row_cnt) * 2878 rmd->total_disks_per_row)) + 2879 (rmd->map_row * rmd->total_disks_per_row) + rmd->first_column; 2880 2881 if (rmd->is_write) { 2882 u32 index; 2883 2884 /* 2885 * p_parity_it_nexus and q_parity_it_nexus are pointers to the 2886 * parity entries inside the device's raid_map. 2887 * 2888 * A device's RAID map is bounded by: number of RAID disks squared. 2889 * 2890 * The devices RAID map size is checked during device 2891 * initialization. 2892 */ 2893 index = DIV_ROUND_UP(rmd->map_index + 1, rmd->total_disks_per_row); 2894 index *= rmd->total_disks_per_row; 2895 index -= get_unaligned_le16(&raid_map->metadata_disks_per_row); 2896 2897 rmd->p_parity_it_nexus = raid_map->disk_data[index].aio_handle; 2898 if (rmd->raid_level == SA_RAID_6) { 2899 rmd->q_parity_it_nexus = raid_map->disk_data[index + 1].aio_handle; 2900 rmd->xor_mult = raid_map->disk_data[rmd->map_index].xor_mult[1]; 2901 } 2902 #if BITS_PER_LONG == 32 2903 tmpdiv = rmd->first_block; 2904 do_div(tmpdiv, rmd->blocks_per_row); 2905 rmd->row = tmpdiv; 2906 #else 2907 rmd->row = rmd->first_block / rmd->blocks_per_row; 2908 #endif 2909 } 2910 2911 return 0; 2912 } 2913 2914 static void pqi_set_aio_cdb(struct pqi_scsi_dev_raid_map_data *rmd) 2915 { 2916 /* Build the new CDB for the physical disk I/O. */ 2917 if (rmd->disk_block > 0xffffffff) { 2918 rmd->cdb[0] = rmd->is_write ? WRITE_16 : READ_16; 2919 rmd->cdb[1] = 0; 2920 put_unaligned_be64(rmd->disk_block, &rmd->cdb[2]); 2921 put_unaligned_be32(rmd->disk_block_cnt, &rmd->cdb[10]); 2922 rmd->cdb[14] = 0; 2923 rmd->cdb[15] = 0; 2924 rmd->cdb_length = 16; 2925 } else { 2926 rmd->cdb[0] = rmd->is_write ? WRITE_10 : READ_10; 2927 rmd->cdb[1] = 0; 2928 put_unaligned_be32((u32)rmd->disk_block, &rmd->cdb[2]); 2929 rmd->cdb[6] = 0; 2930 put_unaligned_be16((u16)rmd->disk_block_cnt, &rmd->cdb[7]); 2931 rmd->cdb[9] = 0; 2932 rmd->cdb_length = 10; 2933 } 2934 } 2935 2936 static void pqi_calc_aio_r1_nexus(struct raid_map *raid_map, 2937 struct pqi_scsi_dev_raid_map_data *rmd) 2938 { 2939 u32 index; 2940 u32 group; 2941 2942 group = rmd->map_index / rmd->data_disks_per_row; 2943 2944 index = rmd->map_index - (group * rmd->data_disks_per_row); 2945 rmd->it_nexus[0] = raid_map->disk_data[index].aio_handle; 2946 index += rmd->data_disks_per_row; 2947 rmd->it_nexus[1] = raid_map->disk_data[index].aio_handle; 2948 if (rmd->layout_map_count > 2) { 2949 index += rmd->data_disks_per_row; 2950 rmd->it_nexus[2] = raid_map->disk_data[index].aio_handle; 2951 } 2952 2953 rmd->num_it_nexus_entries = rmd->layout_map_count; 2954 } 2955 2956 static int pqi_raid_bypass_submit_scsi_cmd(struct pqi_ctrl_info *ctrl_info, 2957 struct pqi_scsi_dev *device, struct scsi_cmnd *scmd, 2958 struct pqi_queue_group *queue_group) 2959 { 2960 int rc; 2961 struct raid_map *raid_map; 2962 u32 group; 2963 u32 next_bypass_group; 2964 struct pqi_encryption_info *encryption_info_ptr; 2965 struct pqi_encryption_info encryption_info; 2966 struct pqi_scsi_dev_raid_map_data rmd = { 0 }; 2967 2968 rc = pqi_get_aio_lba_and_block_count(scmd, &rmd); 2969 if (rc) 2970 return PQI_RAID_BYPASS_INELIGIBLE; 2971 2972 rmd.raid_level = device->raid_level; 2973 2974 if (!pqi_aio_raid_level_supported(ctrl_info, &rmd)) 2975 return PQI_RAID_BYPASS_INELIGIBLE; 2976 2977 if (unlikely(rmd.block_cnt == 0)) 2978 return PQI_RAID_BYPASS_INELIGIBLE; 2979 2980 raid_map = device->raid_map; 2981 2982 rc = pci_get_aio_common_raid_map_values(ctrl_info, &rmd, raid_map); 2983 if (rc) 2984 return PQI_RAID_BYPASS_INELIGIBLE; 2985 2986 if (device->raid_level == SA_RAID_1 || 2987 device->raid_level == SA_RAID_TRIPLE) { 2988 if (rmd.is_write) { 2989 pqi_calc_aio_r1_nexus(raid_map, &rmd); 2990 } else { 2991 group = device->next_bypass_group[rmd.map_index]; 2992 next_bypass_group = group + 1; 2993 if (next_bypass_group >= rmd.layout_map_count) 2994 next_bypass_group = 0; 2995 device->next_bypass_group[rmd.map_index] = next_bypass_group; 2996 rmd.map_index += group * rmd.data_disks_per_row; 2997 } 2998 } else if ((device->raid_level == SA_RAID_5 || 2999 device->raid_level == SA_RAID_6) && 3000 (rmd.layout_map_count > 1 || rmd.is_write)) { 3001 rc = pqi_calc_aio_r5_or_r6(&rmd, raid_map); 3002 if (rc) 3003 return PQI_RAID_BYPASS_INELIGIBLE; 3004 } 3005 3006 if (unlikely(rmd.map_index >= RAID_MAP_MAX_ENTRIES)) 3007 return PQI_RAID_BYPASS_INELIGIBLE; 3008 3009 rmd.aio_handle = raid_map->disk_data[rmd.map_index].aio_handle; 3010 rmd.disk_block = get_unaligned_le64(&raid_map->disk_starting_blk) + 3011 rmd.first_row * rmd.strip_size + 3012 (rmd.first_row_offset - rmd.first_column * rmd.strip_size); 3013 rmd.disk_block_cnt = rmd.block_cnt; 3014 3015 /* Handle differing logical/physical block sizes. */ 3016 if (raid_map->phys_blk_shift) { 3017 rmd.disk_block <<= raid_map->phys_blk_shift; 3018 rmd.disk_block_cnt <<= raid_map->phys_blk_shift; 3019 } 3020 3021 if (unlikely(rmd.disk_block_cnt > 0xffff)) 3022 return PQI_RAID_BYPASS_INELIGIBLE; 3023 3024 pqi_set_aio_cdb(&rmd); 3025 3026 if (get_unaligned_le16(&raid_map->flags) & RAID_MAP_ENCRYPTION_ENABLED) { 3027 if (rmd.data_length > device->max_transfer_encrypted) 3028 return PQI_RAID_BYPASS_INELIGIBLE; 3029 pqi_set_encryption_info(&encryption_info, raid_map, rmd.first_block); 3030 encryption_info_ptr = &encryption_info; 3031 } else { 3032 encryption_info_ptr = NULL; 3033 } 3034 3035 if (rmd.is_write) { 3036 switch (device->raid_level) { 3037 case SA_RAID_1: 3038 case SA_RAID_TRIPLE: 3039 return pqi_aio_submit_r1_write_io(ctrl_info, scmd, queue_group, 3040 encryption_info_ptr, device, &rmd); 3041 case SA_RAID_5: 3042 case SA_RAID_6: 3043 return pqi_aio_submit_r56_write_io(ctrl_info, scmd, queue_group, 3044 encryption_info_ptr, device, &rmd); 3045 } 3046 } 3047 3048 return pqi_aio_submit_io(ctrl_info, scmd, rmd.aio_handle, 3049 rmd.cdb, rmd.cdb_length, queue_group, 3050 encryption_info_ptr, true, false); 3051 } 3052 3053 #define PQI_STATUS_IDLE 0x0 3054 3055 #define PQI_CREATE_ADMIN_QUEUE_PAIR 1 3056 #define PQI_DELETE_ADMIN_QUEUE_PAIR 2 3057 3058 #define PQI_DEVICE_STATE_POWER_ON_AND_RESET 0x0 3059 #define PQI_DEVICE_STATE_STATUS_AVAILABLE 0x1 3060 #define PQI_DEVICE_STATE_ALL_REGISTERS_READY 0x2 3061 #define PQI_DEVICE_STATE_ADMIN_QUEUE_PAIR_READY 0x3 3062 #define PQI_DEVICE_STATE_ERROR 0x4 3063 3064 #define PQI_MODE_READY_TIMEOUT_SECS 30 3065 #define PQI_MODE_READY_POLL_INTERVAL_MSECS 1 3066 3067 static int pqi_wait_for_pqi_mode_ready(struct pqi_ctrl_info *ctrl_info) 3068 { 3069 struct pqi_device_registers __iomem *pqi_registers; 3070 unsigned long timeout; 3071 u64 signature; 3072 u8 status; 3073 3074 pqi_registers = ctrl_info->pqi_registers; 3075 timeout = (PQI_MODE_READY_TIMEOUT_SECS * HZ) + jiffies; 3076 3077 while (1) { 3078 signature = readq(&pqi_registers->signature); 3079 if (memcmp(&signature, PQI_DEVICE_SIGNATURE, 3080 sizeof(signature)) == 0) 3081 break; 3082 if (time_after(jiffies, timeout)) { 3083 dev_err(&ctrl_info->pci_dev->dev, 3084 "timed out waiting for PQI signature\n"); 3085 return -ETIMEDOUT; 3086 } 3087 msleep(PQI_MODE_READY_POLL_INTERVAL_MSECS); 3088 } 3089 3090 while (1) { 3091 status = readb(&pqi_registers->function_and_status_code); 3092 if (status == PQI_STATUS_IDLE) 3093 break; 3094 if (time_after(jiffies, timeout)) { 3095 dev_err(&ctrl_info->pci_dev->dev, 3096 "timed out waiting for PQI IDLE\n"); 3097 return -ETIMEDOUT; 3098 } 3099 msleep(PQI_MODE_READY_POLL_INTERVAL_MSECS); 3100 } 3101 3102 while (1) { 3103 if (readl(&pqi_registers->device_status) == 3104 PQI_DEVICE_STATE_ALL_REGISTERS_READY) 3105 break; 3106 if (time_after(jiffies, timeout)) { 3107 dev_err(&ctrl_info->pci_dev->dev, 3108 "timed out waiting for PQI all registers ready\n"); 3109 return -ETIMEDOUT; 3110 } 3111 msleep(PQI_MODE_READY_POLL_INTERVAL_MSECS); 3112 } 3113 3114 return 0; 3115 } 3116 3117 static inline void pqi_aio_path_disabled(struct pqi_io_request *io_request) 3118 { 3119 struct pqi_scsi_dev *device; 3120 3121 device = io_request->scmd->device->hostdata; 3122 device->raid_bypass_enabled = false; 3123 device->aio_enabled = false; 3124 } 3125 3126 static inline void pqi_take_device_offline(struct scsi_device *sdev, char *path) 3127 { 3128 struct pqi_ctrl_info *ctrl_info; 3129 struct pqi_scsi_dev *device; 3130 3131 device = sdev->hostdata; 3132 if (device->device_offline) 3133 return; 3134 3135 device->device_offline = true; 3136 ctrl_info = shost_to_hba(sdev->host); 3137 pqi_schedule_rescan_worker(ctrl_info); 3138 dev_err(&ctrl_info->pci_dev->dev, "re-scanning %s scsi %d:%d:%d:%d\n", 3139 path, ctrl_info->scsi_host->host_no, device->bus, 3140 device->target, device->lun); 3141 } 3142 3143 static void pqi_process_raid_io_error(struct pqi_io_request *io_request) 3144 { 3145 u8 scsi_status; 3146 u8 host_byte; 3147 struct scsi_cmnd *scmd; 3148 struct pqi_raid_error_info *error_info; 3149 size_t sense_data_length; 3150 int residual_count; 3151 int xfer_count; 3152 struct scsi_sense_hdr sshdr; 3153 3154 scmd = io_request->scmd; 3155 if (!scmd) 3156 return; 3157 3158 error_info = io_request->error_info; 3159 scsi_status = error_info->status; 3160 host_byte = DID_OK; 3161 3162 switch (error_info->data_out_result) { 3163 case PQI_DATA_IN_OUT_GOOD: 3164 break; 3165 case PQI_DATA_IN_OUT_UNDERFLOW: 3166 xfer_count = 3167 get_unaligned_le32(&error_info->data_out_transferred); 3168 residual_count = scsi_bufflen(scmd) - xfer_count; 3169 scsi_set_resid(scmd, residual_count); 3170 if (xfer_count < scmd->underflow) 3171 host_byte = DID_SOFT_ERROR; 3172 break; 3173 case PQI_DATA_IN_OUT_UNSOLICITED_ABORT: 3174 case PQI_DATA_IN_OUT_ABORTED: 3175 host_byte = DID_ABORT; 3176 break; 3177 case PQI_DATA_IN_OUT_TIMEOUT: 3178 host_byte = DID_TIME_OUT; 3179 break; 3180 case PQI_DATA_IN_OUT_BUFFER_OVERFLOW: 3181 case PQI_DATA_IN_OUT_PROTOCOL_ERROR: 3182 case PQI_DATA_IN_OUT_BUFFER_ERROR: 3183 case PQI_DATA_IN_OUT_BUFFER_OVERFLOW_DESCRIPTOR_AREA: 3184 case PQI_DATA_IN_OUT_BUFFER_OVERFLOW_BRIDGE: 3185 case PQI_DATA_IN_OUT_ERROR: 3186 case PQI_DATA_IN_OUT_HARDWARE_ERROR: 3187 case PQI_DATA_IN_OUT_PCIE_FABRIC_ERROR: 3188 case PQI_DATA_IN_OUT_PCIE_COMPLETION_TIMEOUT: 3189 case PQI_DATA_IN_OUT_PCIE_COMPLETER_ABORT_RECEIVED: 3190 case PQI_DATA_IN_OUT_PCIE_UNSUPPORTED_REQUEST_RECEIVED: 3191 case PQI_DATA_IN_OUT_PCIE_ECRC_CHECK_FAILED: 3192 case PQI_DATA_IN_OUT_PCIE_UNSUPPORTED_REQUEST: 3193 case PQI_DATA_IN_OUT_PCIE_ACS_VIOLATION: 3194 case PQI_DATA_IN_OUT_PCIE_TLP_PREFIX_BLOCKED: 3195 case PQI_DATA_IN_OUT_PCIE_POISONED_MEMORY_READ: 3196 default: 3197 host_byte = DID_ERROR; 3198 break; 3199 } 3200 3201 sense_data_length = get_unaligned_le16(&error_info->sense_data_length); 3202 if (sense_data_length == 0) 3203 sense_data_length = 3204 get_unaligned_le16(&error_info->response_data_length); 3205 if (sense_data_length) { 3206 if (sense_data_length > sizeof(error_info->data)) 3207 sense_data_length = sizeof(error_info->data); 3208 3209 if (scsi_status == SAM_STAT_CHECK_CONDITION && 3210 scsi_normalize_sense(error_info->data, 3211 sense_data_length, &sshdr) && 3212 sshdr.sense_key == HARDWARE_ERROR && 3213 sshdr.asc == 0x3e) { 3214 struct pqi_ctrl_info *ctrl_info = shost_to_hba(scmd->device->host); 3215 struct pqi_scsi_dev *device = scmd->device->hostdata; 3216 3217 switch (sshdr.ascq) { 3218 case 0x1: /* LOGICAL UNIT FAILURE */ 3219 if (printk_ratelimit()) 3220 scmd_printk(KERN_ERR, scmd, "received 'logical unit failure' from controller for scsi %d:%d:%d:%d\n", 3221 ctrl_info->scsi_host->host_no, device->bus, device->target, device->lun); 3222 pqi_take_device_offline(scmd->device, "RAID"); 3223 host_byte = DID_NO_CONNECT; 3224 break; 3225 3226 default: /* See http://www.t10.org/lists/asc-num.htm#ASC_3E */ 3227 if (printk_ratelimit()) 3228 scmd_printk(KERN_ERR, scmd, "received unhandled error %d from controller for scsi %d:%d:%d:%d\n", 3229 sshdr.ascq, ctrl_info->scsi_host->host_no, device->bus, device->target, device->lun); 3230 break; 3231 } 3232 } 3233 3234 if (sense_data_length > SCSI_SENSE_BUFFERSIZE) 3235 sense_data_length = SCSI_SENSE_BUFFERSIZE; 3236 memcpy(scmd->sense_buffer, error_info->data, 3237 sense_data_length); 3238 } 3239 3240 scmd->result = scsi_status; 3241 set_host_byte(scmd, host_byte); 3242 } 3243 3244 static void pqi_process_aio_io_error(struct pqi_io_request *io_request) 3245 { 3246 u8 scsi_status; 3247 u8 host_byte; 3248 struct scsi_cmnd *scmd; 3249 struct pqi_aio_error_info *error_info; 3250 size_t sense_data_length; 3251 int residual_count; 3252 int xfer_count; 3253 bool device_offline; 3254 struct pqi_scsi_dev *device; 3255 3256 scmd = io_request->scmd; 3257 error_info = io_request->error_info; 3258 host_byte = DID_OK; 3259 sense_data_length = 0; 3260 device_offline = false; 3261 device = scmd->device->hostdata; 3262 3263 switch (error_info->service_response) { 3264 case PQI_AIO_SERV_RESPONSE_COMPLETE: 3265 scsi_status = error_info->status; 3266 break; 3267 case PQI_AIO_SERV_RESPONSE_FAILURE: 3268 switch (error_info->status) { 3269 case PQI_AIO_STATUS_IO_ABORTED: 3270 scsi_status = SAM_STAT_TASK_ABORTED; 3271 break; 3272 case PQI_AIO_STATUS_UNDERRUN: 3273 scsi_status = SAM_STAT_GOOD; 3274 residual_count = get_unaligned_le32( 3275 &error_info->residual_count); 3276 scsi_set_resid(scmd, residual_count); 3277 xfer_count = scsi_bufflen(scmd) - residual_count; 3278 if (xfer_count < scmd->underflow) 3279 host_byte = DID_SOFT_ERROR; 3280 break; 3281 case PQI_AIO_STATUS_OVERRUN: 3282 scsi_status = SAM_STAT_GOOD; 3283 break; 3284 case PQI_AIO_STATUS_AIO_PATH_DISABLED: 3285 pqi_aio_path_disabled(io_request); 3286 if (pqi_is_multipath_device(device)) { 3287 pqi_device_remove_start(device); 3288 host_byte = DID_NO_CONNECT; 3289 scsi_status = SAM_STAT_CHECK_CONDITION; 3290 } else { 3291 scsi_status = SAM_STAT_GOOD; 3292 io_request->status = -EAGAIN; 3293 } 3294 break; 3295 case PQI_AIO_STATUS_NO_PATH_TO_DEVICE: 3296 case PQI_AIO_STATUS_INVALID_DEVICE: 3297 if (!io_request->raid_bypass) { 3298 device_offline = true; 3299 pqi_take_device_offline(scmd->device, "AIO"); 3300 host_byte = DID_NO_CONNECT; 3301 } 3302 scsi_status = SAM_STAT_CHECK_CONDITION; 3303 break; 3304 case PQI_AIO_STATUS_IO_ERROR: 3305 default: 3306 scsi_status = SAM_STAT_CHECK_CONDITION; 3307 break; 3308 } 3309 break; 3310 case PQI_AIO_SERV_RESPONSE_TMF_COMPLETE: 3311 case PQI_AIO_SERV_RESPONSE_TMF_SUCCEEDED: 3312 scsi_status = SAM_STAT_GOOD; 3313 break; 3314 case PQI_AIO_SERV_RESPONSE_TMF_REJECTED: 3315 case PQI_AIO_SERV_RESPONSE_TMF_INCORRECT_LUN: 3316 default: 3317 scsi_status = SAM_STAT_CHECK_CONDITION; 3318 break; 3319 } 3320 3321 if (error_info->data_present) { 3322 sense_data_length = 3323 get_unaligned_le16(&error_info->data_length); 3324 if (sense_data_length) { 3325 if (sense_data_length > sizeof(error_info->data)) 3326 sense_data_length = sizeof(error_info->data); 3327 if (sense_data_length > SCSI_SENSE_BUFFERSIZE) 3328 sense_data_length = SCSI_SENSE_BUFFERSIZE; 3329 memcpy(scmd->sense_buffer, error_info->data, 3330 sense_data_length); 3331 } 3332 } 3333 3334 if (device_offline && sense_data_length == 0) 3335 scsi_build_sense(scmd, 0, HARDWARE_ERROR, 0x3e, 0x1); 3336 3337 scmd->result = scsi_status; 3338 set_host_byte(scmd, host_byte); 3339 } 3340 3341 static void pqi_process_io_error(unsigned int iu_type, 3342 struct pqi_io_request *io_request) 3343 { 3344 switch (iu_type) { 3345 case PQI_RESPONSE_IU_RAID_PATH_IO_ERROR: 3346 pqi_process_raid_io_error(io_request); 3347 break; 3348 case PQI_RESPONSE_IU_AIO_PATH_IO_ERROR: 3349 pqi_process_aio_io_error(io_request); 3350 break; 3351 } 3352 } 3353 3354 static int pqi_interpret_task_management_response(struct pqi_ctrl_info *ctrl_info, 3355 struct pqi_task_management_response *response) 3356 { 3357 int rc; 3358 3359 switch (response->response_code) { 3360 case SOP_TMF_COMPLETE: 3361 case SOP_TMF_FUNCTION_SUCCEEDED: 3362 rc = 0; 3363 break; 3364 case SOP_TMF_REJECTED: 3365 rc = -EAGAIN; 3366 break; 3367 case SOP_RC_INCORRECT_LOGICAL_UNIT: 3368 rc = -ENODEV; 3369 break; 3370 default: 3371 rc = -EIO; 3372 break; 3373 } 3374 3375 if (rc) 3376 dev_err(&ctrl_info->pci_dev->dev, 3377 "Task Management Function error: %d (response code: %u)\n", rc, response->response_code); 3378 3379 return rc; 3380 } 3381 3382 static inline void pqi_invalid_response(struct pqi_ctrl_info *ctrl_info, 3383 enum pqi_ctrl_shutdown_reason ctrl_shutdown_reason) 3384 { 3385 pqi_take_ctrl_offline(ctrl_info, ctrl_shutdown_reason); 3386 } 3387 3388 static int pqi_process_io_intr(struct pqi_ctrl_info *ctrl_info, struct pqi_queue_group *queue_group) 3389 { 3390 int num_responses; 3391 pqi_index_t oq_pi; 3392 pqi_index_t oq_ci; 3393 struct pqi_io_request *io_request; 3394 struct pqi_io_response *response; 3395 u16 request_id; 3396 3397 num_responses = 0; 3398 oq_ci = queue_group->oq_ci_copy; 3399 3400 while (1) { 3401 oq_pi = readl(queue_group->oq_pi); 3402 if (oq_pi >= ctrl_info->num_elements_per_oq) { 3403 pqi_invalid_response(ctrl_info, PQI_IO_PI_OUT_OF_RANGE); 3404 dev_err(&ctrl_info->pci_dev->dev, 3405 "I/O interrupt: producer index (%u) out of range (0-%u): consumer index: %u\n", 3406 oq_pi, ctrl_info->num_elements_per_oq - 1, oq_ci); 3407 return -1; 3408 } 3409 if (oq_pi == oq_ci) 3410 break; 3411 3412 num_responses++; 3413 response = queue_group->oq_element_array + 3414 (oq_ci * PQI_OPERATIONAL_OQ_ELEMENT_LENGTH); 3415 3416 request_id = get_unaligned_le16(&response->request_id); 3417 if (request_id >= ctrl_info->max_io_slots) { 3418 pqi_invalid_response(ctrl_info, PQI_INVALID_REQ_ID); 3419 dev_err(&ctrl_info->pci_dev->dev, 3420 "request ID in response (%u) out of range (0-%u): producer index: %u consumer index: %u\n", 3421 request_id, ctrl_info->max_io_slots - 1, oq_pi, oq_ci); 3422 return -1; 3423 } 3424 3425 io_request = &ctrl_info->io_request_pool[request_id]; 3426 if (atomic_read(&io_request->refcount) == 0) { 3427 pqi_invalid_response(ctrl_info, PQI_UNMATCHED_REQ_ID); 3428 dev_err(&ctrl_info->pci_dev->dev, 3429 "request ID in response (%u) does not match an outstanding I/O request: producer index: %u consumer index: %u\n", 3430 request_id, oq_pi, oq_ci); 3431 return -1; 3432 } 3433 3434 switch (response->header.iu_type) { 3435 case PQI_RESPONSE_IU_RAID_PATH_IO_SUCCESS: 3436 case PQI_RESPONSE_IU_AIO_PATH_IO_SUCCESS: 3437 if (io_request->scmd) 3438 io_request->scmd->result = 0; 3439 fallthrough; 3440 case PQI_RESPONSE_IU_GENERAL_MANAGEMENT: 3441 break; 3442 case PQI_RESPONSE_IU_VENDOR_GENERAL: 3443 io_request->status = 3444 get_unaligned_le16( 3445 &((struct pqi_vendor_general_response *)response)->status); 3446 break; 3447 case PQI_RESPONSE_IU_TASK_MANAGEMENT: 3448 io_request->status = pqi_interpret_task_management_response(ctrl_info, 3449 (void *)response); 3450 break; 3451 case PQI_RESPONSE_IU_AIO_PATH_DISABLED: 3452 pqi_aio_path_disabled(io_request); 3453 io_request->status = -EAGAIN; 3454 break; 3455 case PQI_RESPONSE_IU_RAID_PATH_IO_ERROR: 3456 case PQI_RESPONSE_IU_AIO_PATH_IO_ERROR: 3457 io_request->error_info = ctrl_info->error_buffer + 3458 (get_unaligned_le16(&response->error_index) * 3459 PQI_ERROR_BUFFER_ELEMENT_LENGTH); 3460 pqi_process_io_error(response->header.iu_type, io_request); 3461 break; 3462 default: 3463 pqi_invalid_response(ctrl_info, PQI_UNEXPECTED_IU_TYPE); 3464 dev_err(&ctrl_info->pci_dev->dev, 3465 "unexpected IU type: 0x%x: producer index: %u consumer index: %u\n", 3466 response->header.iu_type, oq_pi, oq_ci); 3467 return -1; 3468 } 3469 3470 io_request->io_complete_callback(io_request, io_request->context); 3471 3472 /* 3473 * Note that the I/O request structure CANNOT BE TOUCHED after 3474 * returning from the I/O completion callback! 3475 */ 3476 oq_ci = (oq_ci + 1) % ctrl_info->num_elements_per_oq; 3477 } 3478 3479 if (num_responses) { 3480 queue_group->oq_ci_copy = oq_ci; 3481 writel(oq_ci, queue_group->oq_ci); 3482 } 3483 3484 return num_responses; 3485 } 3486 3487 static inline unsigned int pqi_num_elements_free(unsigned int pi, 3488 unsigned int ci, unsigned int elements_in_queue) 3489 { 3490 unsigned int num_elements_used; 3491 3492 if (pi >= ci) 3493 num_elements_used = pi - ci; 3494 else 3495 num_elements_used = elements_in_queue - ci + pi; 3496 3497 return elements_in_queue - num_elements_used - 1; 3498 } 3499 3500 static void pqi_send_event_ack(struct pqi_ctrl_info *ctrl_info, 3501 struct pqi_event_acknowledge_request *iu, size_t iu_length) 3502 { 3503 pqi_index_t iq_pi; 3504 pqi_index_t iq_ci; 3505 unsigned long flags; 3506 void *next_element; 3507 struct pqi_queue_group *queue_group; 3508 3509 queue_group = &ctrl_info->queue_groups[PQI_DEFAULT_QUEUE_GROUP]; 3510 put_unaligned_le16(queue_group->oq_id, &iu->header.response_queue_id); 3511 3512 while (1) { 3513 spin_lock_irqsave(&queue_group->submit_lock[RAID_PATH], flags); 3514 3515 iq_pi = queue_group->iq_pi_copy[RAID_PATH]; 3516 iq_ci = readl(queue_group->iq_ci[RAID_PATH]); 3517 3518 if (pqi_num_elements_free(iq_pi, iq_ci, 3519 ctrl_info->num_elements_per_iq)) 3520 break; 3521 3522 spin_unlock_irqrestore( 3523 &queue_group->submit_lock[RAID_PATH], flags); 3524 3525 if (pqi_ctrl_offline(ctrl_info)) 3526 return; 3527 } 3528 3529 next_element = queue_group->iq_element_array[RAID_PATH] + 3530 (iq_pi * PQI_OPERATIONAL_IQ_ELEMENT_LENGTH); 3531 3532 memcpy(next_element, iu, iu_length); 3533 3534 iq_pi = (iq_pi + 1) % ctrl_info->num_elements_per_iq; 3535 queue_group->iq_pi_copy[RAID_PATH] = iq_pi; 3536 3537 /* 3538 * This write notifies the controller that an IU is available to be 3539 * processed. 3540 */ 3541 writel(iq_pi, queue_group->iq_pi[RAID_PATH]); 3542 3543 spin_unlock_irqrestore(&queue_group->submit_lock[RAID_PATH], flags); 3544 } 3545 3546 static void pqi_acknowledge_event(struct pqi_ctrl_info *ctrl_info, 3547 struct pqi_event *event) 3548 { 3549 struct pqi_event_acknowledge_request request; 3550 3551 memset(&request, 0, sizeof(request)); 3552 3553 request.header.iu_type = PQI_REQUEST_IU_ACKNOWLEDGE_VENDOR_EVENT; 3554 put_unaligned_le16(sizeof(request) - PQI_REQUEST_HEADER_LENGTH, 3555 &request.header.iu_length); 3556 request.event_type = event->event_type; 3557 put_unaligned_le16(event->event_id, &request.event_id); 3558 put_unaligned_le32(event->additional_event_id, &request.additional_event_id); 3559 3560 pqi_send_event_ack(ctrl_info, &request, sizeof(request)); 3561 } 3562 3563 #define PQI_SOFT_RESET_STATUS_TIMEOUT_SECS 30 3564 #define PQI_SOFT_RESET_STATUS_POLL_INTERVAL_SECS 1 3565 3566 static enum pqi_soft_reset_status pqi_poll_for_soft_reset_status( 3567 struct pqi_ctrl_info *ctrl_info) 3568 { 3569 u8 status; 3570 unsigned long timeout; 3571 3572 timeout = (PQI_SOFT_RESET_STATUS_TIMEOUT_SECS * HZ) + jiffies; 3573 3574 while (1) { 3575 status = pqi_read_soft_reset_status(ctrl_info); 3576 if (status & PQI_SOFT_RESET_INITIATE) 3577 return RESET_INITIATE_DRIVER; 3578 3579 if (status & PQI_SOFT_RESET_ABORT) 3580 return RESET_ABORT; 3581 3582 if (!sis_is_firmware_running(ctrl_info)) 3583 return RESET_NORESPONSE; 3584 3585 if (time_after(jiffies, timeout)) { 3586 dev_warn(&ctrl_info->pci_dev->dev, 3587 "timed out waiting for soft reset status\n"); 3588 return RESET_TIMEDOUT; 3589 } 3590 3591 ssleep(PQI_SOFT_RESET_STATUS_POLL_INTERVAL_SECS); 3592 } 3593 } 3594 3595 static void pqi_process_soft_reset(struct pqi_ctrl_info *ctrl_info) 3596 { 3597 int rc; 3598 unsigned int delay_secs; 3599 enum pqi_soft_reset_status reset_status; 3600 3601 if (ctrl_info->soft_reset_handshake_supported) 3602 reset_status = pqi_poll_for_soft_reset_status(ctrl_info); 3603 else 3604 reset_status = RESET_INITIATE_FIRMWARE; 3605 3606 delay_secs = PQI_POST_RESET_DELAY_SECS; 3607 3608 switch (reset_status) { 3609 case RESET_TIMEDOUT: 3610 delay_secs = PQI_POST_OFA_RESET_DELAY_UPON_TIMEOUT_SECS; 3611 fallthrough; 3612 case RESET_INITIATE_DRIVER: 3613 dev_info(&ctrl_info->pci_dev->dev, 3614 "Online Firmware Activation: resetting controller\n"); 3615 sis_soft_reset(ctrl_info); 3616 fallthrough; 3617 case RESET_INITIATE_FIRMWARE: 3618 ctrl_info->pqi_mode_enabled = false; 3619 pqi_save_ctrl_mode(ctrl_info, SIS_MODE); 3620 rc = pqi_ofa_ctrl_restart(ctrl_info, delay_secs); 3621 pqi_ofa_free_host_buffer(ctrl_info); 3622 pqi_ctrl_ofa_done(ctrl_info); 3623 dev_info(&ctrl_info->pci_dev->dev, 3624 "Online Firmware Activation: %s\n", 3625 rc == 0 ? "SUCCESS" : "FAILED"); 3626 break; 3627 case RESET_ABORT: 3628 dev_info(&ctrl_info->pci_dev->dev, 3629 "Online Firmware Activation ABORTED\n"); 3630 if (ctrl_info->soft_reset_handshake_supported) 3631 pqi_clear_soft_reset_status(ctrl_info); 3632 pqi_ofa_free_host_buffer(ctrl_info); 3633 pqi_ctrl_ofa_done(ctrl_info); 3634 pqi_ofa_ctrl_unquiesce(ctrl_info); 3635 break; 3636 case RESET_NORESPONSE: 3637 fallthrough; 3638 default: 3639 dev_err(&ctrl_info->pci_dev->dev, 3640 "unexpected Online Firmware Activation reset status: 0x%x\n", 3641 reset_status); 3642 pqi_ofa_free_host_buffer(ctrl_info); 3643 pqi_ctrl_ofa_done(ctrl_info); 3644 pqi_ofa_ctrl_unquiesce(ctrl_info); 3645 pqi_take_ctrl_offline(ctrl_info, PQI_OFA_RESPONSE_TIMEOUT); 3646 break; 3647 } 3648 } 3649 3650 static void pqi_ofa_memory_alloc_worker(struct work_struct *work) 3651 { 3652 struct pqi_ctrl_info *ctrl_info; 3653 3654 ctrl_info = container_of(work, struct pqi_ctrl_info, ofa_memory_alloc_work); 3655 3656 pqi_ctrl_ofa_start(ctrl_info); 3657 pqi_ofa_setup_host_buffer(ctrl_info); 3658 pqi_ofa_host_memory_update(ctrl_info); 3659 } 3660 3661 static void pqi_ofa_quiesce_worker(struct work_struct *work) 3662 { 3663 struct pqi_ctrl_info *ctrl_info; 3664 struct pqi_event *event; 3665 3666 ctrl_info = container_of(work, struct pqi_ctrl_info, ofa_quiesce_work); 3667 3668 event = &ctrl_info->events[pqi_event_type_to_event_index(PQI_EVENT_TYPE_OFA)]; 3669 3670 pqi_ofa_ctrl_quiesce(ctrl_info); 3671 pqi_acknowledge_event(ctrl_info, event); 3672 pqi_process_soft_reset(ctrl_info); 3673 } 3674 3675 static bool pqi_ofa_process_event(struct pqi_ctrl_info *ctrl_info, 3676 struct pqi_event *event) 3677 { 3678 bool ack_event; 3679 3680 ack_event = true; 3681 3682 switch (event->event_id) { 3683 case PQI_EVENT_OFA_MEMORY_ALLOCATION: 3684 dev_info(&ctrl_info->pci_dev->dev, 3685 "received Online Firmware Activation memory allocation request\n"); 3686 schedule_work(&ctrl_info->ofa_memory_alloc_work); 3687 break; 3688 case PQI_EVENT_OFA_QUIESCE: 3689 dev_info(&ctrl_info->pci_dev->dev, 3690 "received Online Firmware Activation quiesce request\n"); 3691 schedule_work(&ctrl_info->ofa_quiesce_work); 3692 ack_event = false; 3693 break; 3694 case PQI_EVENT_OFA_CANCELED: 3695 dev_info(&ctrl_info->pci_dev->dev, 3696 "received Online Firmware Activation cancel request: reason: %u\n", 3697 ctrl_info->ofa_cancel_reason); 3698 pqi_ofa_free_host_buffer(ctrl_info); 3699 pqi_ctrl_ofa_done(ctrl_info); 3700 break; 3701 default: 3702 dev_err(&ctrl_info->pci_dev->dev, 3703 "received unknown Online Firmware Activation request: event ID: %u\n", 3704 event->event_id); 3705 break; 3706 } 3707 3708 return ack_event; 3709 } 3710 3711 static void pqi_disable_raid_bypass(struct pqi_ctrl_info *ctrl_info) 3712 { 3713 unsigned long flags; 3714 struct pqi_scsi_dev *device; 3715 3716 spin_lock_irqsave(&ctrl_info->scsi_device_list_lock, flags); 3717 3718 list_for_each_entry(device, &ctrl_info->scsi_device_list, scsi_device_list_entry) 3719 if (device->raid_bypass_enabled) 3720 device->raid_bypass_enabled = false; 3721 3722 spin_unlock_irqrestore(&ctrl_info->scsi_device_list_lock, flags); 3723 } 3724 3725 static void pqi_event_worker(struct work_struct *work) 3726 { 3727 unsigned int i; 3728 bool rescan_needed; 3729 struct pqi_ctrl_info *ctrl_info; 3730 struct pqi_event *event; 3731 bool ack_event; 3732 3733 ctrl_info = container_of(work, struct pqi_ctrl_info, event_work); 3734 3735 pqi_ctrl_busy(ctrl_info); 3736 pqi_wait_if_ctrl_blocked(ctrl_info); 3737 if (pqi_ctrl_offline(ctrl_info)) 3738 goto out; 3739 3740 rescan_needed = false; 3741 event = ctrl_info->events; 3742 for (i = 0; i < PQI_NUM_SUPPORTED_EVENTS; i++) { 3743 if (event->pending) { 3744 event->pending = false; 3745 if (event->event_type == PQI_EVENT_TYPE_OFA) { 3746 ack_event = pqi_ofa_process_event(ctrl_info, event); 3747 } else { 3748 ack_event = true; 3749 rescan_needed = true; 3750 if (event->event_type == PQI_EVENT_TYPE_LOGICAL_DEVICE) 3751 ctrl_info->logical_volume_rescan_needed = true; 3752 else if (event->event_type == PQI_EVENT_TYPE_AIO_STATE_CHANGE) 3753 pqi_disable_raid_bypass(ctrl_info); 3754 } 3755 if (ack_event) 3756 pqi_acknowledge_event(ctrl_info, event); 3757 } 3758 event++; 3759 } 3760 3761 #define PQI_RESCAN_WORK_FOR_EVENT_DELAY (5 * HZ) 3762 3763 if (rescan_needed) 3764 pqi_schedule_rescan_worker_with_delay(ctrl_info, 3765 PQI_RESCAN_WORK_FOR_EVENT_DELAY); 3766 3767 out: 3768 pqi_ctrl_unbusy(ctrl_info); 3769 } 3770 3771 #define PQI_HEARTBEAT_TIMER_INTERVAL (10 * HZ) 3772 3773 static void pqi_heartbeat_timer_handler(struct timer_list *t) 3774 { 3775 int num_interrupts; 3776 u32 heartbeat_count; 3777 struct pqi_ctrl_info *ctrl_info = from_timer(ctrl_info, t, heartbeat_timer); 3778 3779 pqi_check_ctrl_health(ctrl_info); 3780 if (pqi_ctrl_offline(ctrl_info)) 3781 return; 3782 3783 num_interrupts = atomic_read(&ctrl_info->num_interrupts); 3784 heartbeat_count = pqi_read_heartbeat_counter(ctrl_info); 3785 3786 if (num_interrupts == ctrl_info->previous_num_interrupts) { 3787 if (heartbeat_count == ctrl_info->previous_heartbeat_count) { 3788 dev_err(&ctrl_info->pci_dev->dev, 3789 "no heartbeat detected - last heartbeat count: %u\n", 3790 heartbeat_count); 3791 pqi_take_ctrl_offline(ctrl_info, PQI_NO_HEARTBEAT); 3792 return; 3793 } 3794 } else { 3795 ctrl_info->previous_num_interrupts = num_interrupts; 3796 } 3797 3798 ctrl_info->previous_heartbeat_count = heartbeat_count; 3799 mod_timer(&ctrl_info->heartbeat_timer, 3800 jiffies + PQI_HEARTBEAT_TIMER_INTERVAL); 3801 } 3802 3803 static void pqi_start_heartbeat_timer(struct pqi_ctrl_info *ctrl_info) 3804 { 3805 if (!ctrl_info->heartbeat_counter) 3806 return; 3807 3808 ctrl_info->previous_num_interrupts = 3809 atomic_read(&ctrl_info->num_interrupts); 3810 ctrl_info->previous_heartbeat_count = 3811 pqi_read_heartbeat_counter(ctrl_info); 3812 3813 ctrl_info->heartbeat_timer.expires = 3814 jiffies + PQI_HEARTBEAT_TIMER_INTERVAL; 3815 add_timer(&ctrl_info->heartbeat_timer); 3816 } 3817 3818 static inline void pqi_stop_heartbeat_timer(struct pqi_ctrl_info *ctrl_info) 3819 { 3820 del_timer_sync(&ctrl_info->heartbeat_timer); 3821 } 3822 3823 static void pqi_ofa_capture_event_payload(struct pqi_ctrl_info *ctrl_info, 3824 struct pqi_event *event, struct pqi_event_response *response) 3825 { 3826 switch (event->event_id) { 3827 case PQI_EVENT_OFA_MEMORY_ALLOCATION: 3828 ctrl_info->ofa_bytes_requested = 3829 get_unaligned_le32(&response->data.ofa_memory_allocation.bytes_requested); 3830 break; 3831 case PQI_EVENT_OFA_CANCELED: 3832 ctrl_info->ofa_cancel_reason = 3833 get_unaligned_le16(&response->data.ofa_cancelled.reason); 3834 break; 3835 } 3836 } 3837 3838 static int pqi_process_event_intr(struct pqi_ctrl_info *ctrl_info) 3839 { 3840 int num_events; 3841 pqi_index_t oq_pi; 3842 pqi_index_t oq_ci; 3843 struct pqi_event_queue *event_queue; 3844 struct pqi_event_response *response; 3845 struct pqi_event *event; 3846 int event_index; 3847 3848 event_queue = &ctrl_info->event_queue; 3849 num_events = 0; 3850 oq_ci = event_queue->oq_ci_copy; 3851 3852 while (1) { 3853 oq_pi = readl(event_queue->oq_pi); 3854 if (oq_pi >= PQI_NUM_EVENT_QUEUE_ELEMENTS) { 3855 pqi_invalid_response(ctrl_info, PQI_EVENT_PI_OUT_OF_RANGE); 3856 dev_err(&ctrl_info->pci_dev->dev, 3857 "event interrupt: producer index (%u) out of range (0-%u): consumer index: %u\n", 3858 oq_pi, PQI_NUM_EVENT_QUEUE_ELEMENTS - 1, oq_ci); 3859 return -1; 3860 } 3861 3862 if (oq_pi == oq_ci) 3863 break; 3864 3865 num_events++; 3866 response = event_queue->oq_element_array + (oq_ci * PQI_EVENT_OQ_ELEMENT_LENGTH); 3867 3868 event_index = pqi_event_type_to_event_index(response->event_type); 3869 3870 if (event_index >= 0 && response->request_acknowledge) { 3871 event = &ctrl_info->events[event_index]; 3872 event->pending = true; 3873 event->event_type = response->event_type; 3874 event->event_id = get_unaligned_le16(&response->event_id); 3875 event->additional_event_id = 3876 get_unaligned_le32(&response->additional_event_id); 3877 if (event->event_type == PQI_EVENT_TYPE_OFA) 3878 pqi_ofa_capture_event_payload(ctrl_info, event, response); 3879 } 3880 3881 oq_ci = (oq_ci + 1) % PQI_NUM_EVENT_QUEUE_ELEMENTS; 3882 } 3883 3884 if (num_events) { 3885 event_queue->oq_ci_copy = oq_ci; 3886 writel(oq_ci, event_queue->oq_ci); 3887 schedule_work(&ctrl_info->event_work); 3888 } 3889 3890 return num_events; 3891 } 3892 3893 #define PQI_LEGACY_INTX_MASK 0x1 3894 3895 static inline void pqi_configure_legacy_intx(struct pqi_ctrl_info *ctrl_info, bool enable_intx) 3896 { 3897 u32 intx_mask; 3898 struct pqi_device_registers __iomem *pqi_registers; 3899 volatile void __iomem *register_addr; 3900 3901 pqi_registers = ctrl_info->pqi_registers; 3902 3903 if (enable_intx) 3904 register_addr = &pqi_registers->legacy_intx_mask_clear; 3905 else 3906 register_addr = &pqi_registers->legacy_intx_mask_set; 3907 3908 intx_mask = readl(register_addr); 3909 intx_mask |= PQI_LEGACY_INTX_MASK; 3910 writel(intx_mask, register_addr); 3911 } 3912 3913 static void pqi_change_irq_mode(struct pqi_ctrl_info *ctrl_info, 3914 enum pqi_irq_mode new_mode) 3915 { 3916 switch (ctrl_info->irq_mode) { 3917 case IRQ_MODE_MSIX: 3918 switch (new_mode) { 3919 case IRQ_MODE_MSIX: 3920 break; 3921 case IRQ_MODE_INTX: 3922 pqi_configure_legacy_intx(ctrl_info, true); 3923 sis_enable_intx(ctrl_info); 3924 break; 3925 case IRQ_MODE_NONE: 3926 break; 3927 } 3928 break; 3929 case IRQ_MODE_INTX: 3930 switch (new_mode) { 3931 case IRQ_MODE_MSIX: 3932 pqi_configure_legacy_intx(ctrl_info, false); 3933 sis_enable_msix(ctrl_info); 3934 break; 3935 case IRQ_MODE_INTX: 3936 break; 3937 case IRQ_MODE_NONE: 3938 pqi_configure_legacy_intx(ctrl_info, false); 3939 break; 3940 } 3941 break; 3942 case IRQ_MODE_NONE: 3943 switch (new_mode) { 3944 case IRQ_MODE_MSIX: 3945 sis_enable_msix(ctrl_info); 3946 break; 3947 case IRQ_MODE_INTX: 3948 pqi_configure_legacy_intx(ctrl_info, true); 3949 sis_enable_intx(ctrl_info); 3950 break; 3951 case IRQ_MODE_NONE: 3952 break; 3953 } 3954 break; 3955 } 3956 3957 ctrl_info->irq_mode = new_mode; 3958 } 3959 3960 #define PQI_LEGACY_INTX_PENDING 0x1 3961 3962 static inline bool pqi_is_valid_irq(struct pqi_ctrl_info *ctrl_info) 3963 { 3964 bool valid_irq; 3965 u32 intx_status; 3966 3967 switch (ctrl_info->irq_mode) { 3968 case IRQ_MODE_MSIX: 3969 valid_irq = true; 3970 break; 3971 case IRQ_MODE_INTX: 3972 intx_status = readl(&ctrl_info->pqi_registers->legacy_intx_status); 3973 if (intx_status & PQI_LEGACY_INTX_PENDING) 3974 valid_irq = true; 3975 else 3976 valid_irq = false; 3977 break; 3978 case IRQ_MODE_NONE: 3979 default: 3980 valid_irq = false; 3981 break; 3982 } 3983 3984 return valid_irq; 3985 } 3986 3987 static irqreturn_t pqi_irq_handler(int irq, void *data) 3988 { 3989 struct pqi_ctrl_info *ctrl_info; 3990 struct pqi_queue_group *queue_group; 3991 int num_io_responses_handled; 3992 int num_events_handled; 3993 3994 queue_group = data; 3995 ctrl_info = queue_group->ctrl_info; 3996 3997 if (!pqi_is_valid_irq(ctrl_info)) 3998 return IRQ_NONE; 3999 4000 num_io_responses_handled = pqi_process_io_intr(ctrl_info, queue_group); 4001 if (num_io_responses_handled < 0) 4002 goto out; 4003 4004 if (irq == ctrl_info->event_irq) { 4005 num_events_handled = pqi_process_event_intr(ctrl_info); 4006 if (num_events_handled < 0) 4007 goto out; 4008 } else { 4009 num_events_handled = 0; 4010 } 4011 4012 if (num_io_responses_handled + num_events_handled > 0) 4013 atomic_inc(&ctrl_info->num_interrupts); 4014 4015 pqi_start_io(ctrl_info, queue_group, RAID_PATH, NULL); 4016 pqi_start_io(ctrl_info, queue_group, AIO_PATH, NULL); 4017 4018 out: 4019 return IRQ_HANDLED; 4020 } 4021 4022 static int pqi_request_irqs(struct pqi_ctrl_info *ctrl_info) 4023 { 4024 struct pci_dev *pci_dev = ctrl_info->pci_dev; 4025 int i; 4026 int rc; 4027 4028 ctrl_info->event_irq = pci_irq_vector(pci_dev, 0); 4029 4030 for (i = 0; i < ctrl_info->num_msix_vectors_enabled; i++) { 4031 rc = request_irq(pci_irq_vector(pci_dev, i), pqi_irq_handler, 0, 4032 DRIVER_NAME_SHORT, &ctrl_info->queue_groups[i]); 4033 if (rc) { 4034 dev_err(&pci_dev->dev, 4035 "irq %u init failed with error %d\n", 4036 pci_irq_vector(pci_dev, i), rc); 4037 return rc; 4038 } 4039 ctrl_info->num_msix_vectors_initialized++; 4040 } 4041 4042 return 0; 4043 } 4044 4045 static void pqi_free_irqs(struct pqi_ctrl_info *ctrl_info) 4046 { 4047 int i; 4048 4049 for (i = 0; i < ctrl_info->num_msix_vectors_initialized; i++) 4050 free_irq(pci_irq_vector(ctrl_info->pci_dev, i), 4051 &ctrl_info->queue_groups[i]); 4052 4053 ctrl_info->num_msix_vectors_initialized = 0; 4054 } 4055 4056 static int pqi_enable_msix_interrupts(struct pqi_ctrl_info *ctrl_info) 4057 { 4058 int num_vectors_enabled; 4059 unsigned int flags = PCI_IRQ_MSIX; 4060 4061 if (!pqi_disable_managed_interrupts) 4062 flags |= PCI_IRQ_AFFINITY; 4063 4064 num_vectors_enabled = pci_alloc_irq_vectors(ctrl_info->pci_dev, 4065 PQI_MIN_MSIX_VECTORS, ctrl_info->num_queue_groups, 4066 flags); 4067 if (num_vectors_enabled < 0) { 4068 dev_err(&ctrl_info->pci_dev->dev, 4069 "MSI-X init failed with error %d\n", 4070 num_vectors_enabled); 4071 return num_vectors_enabled; 4072 } 4073 4074 ctrl_info->num_msix_vectors_enabled = num_vectors_enabled; 4075 ctrl_info->irq_mode = IRQ_MODE_MSIX; 4076 return 0; 4077 } 4078 4079 static void pqi_disable_msix_interrupts(struct pqi_ctrl_info *ctrl_info) 4080 { 4081 if (ctrl_info->num_msix_vectors_enabled) { 4082 pci_free_irq_vectors(ctrl_info->pci_dev); 4083 ctrl_info->num_msix_vectors_enabled = 0; 4084 } 4085 } 4086 4087 static int pqi_alloc_operational_queues(struct pqi_ctrl_info *ctrl_info) 4088 { 4089 unsigned int i; 4090 size_t alloc_length; 4091 size_t element_array_length_per_iq; 4092 size_t element_array_length_per_oq; 4093 void *element_array; 4094 void __iomem *next_queue_index; 4095 void *aligned_pointer; 4096 unsigned int num_inbound_queues; 4097 unsigned int num_outbound_queues; 4098 unsigned int num_queue_indexes; 4099 struct pqi_queue_group *queue_group; 4100 4101 element_array_length_per_iq = 4102 PQI_OPERATIONAL_IQ_ELEMENT_LENGTH * 4103 ctrl_info->num_elements_per_iq; 4104 element_array_length_per_oq = 4105 PQI_OPERATIONAL_OQ_ELEMENT_LENGTH * 4106 ctrl_info->num_elements_per_oq; 4107 num_inbound_queues = ctrl_info->num_queue_groups * 2; 4108 num_outbound_queues = ctrl_info->num_queue_groups; 4109 num_queue_indexes = (ctrl_info->num_queue_groups * 3) + 1; 4110 4111 aligned_pointer = NULL; 4112 4113 for (i = 0; i < num_inbound_queues; i++) { 4114 aligned_pointer = PTR_ALIGN(aligned_pointer, 4115 PQI_QUEUE_ELEMENT_ARRAY_ALIGNMENT); 4116 aligned_pointer += element_array_length_per_iq; 4117 } 4118 4119 for (i = 0; i < num_outbound_queues; i++) { 4120 aligned_pointer = PTR_ALIGN(aligned_pointer, 4121 PQI_QUEUE_ELEMENT_ARRAY_ALIGNMENT); 4122 aligned_pointer += element_array_length_per_oq; 4123 } 4124 4125 aligned_pointer = PTR_ALIGN(aligned_pointer, 4126 PQI_QUEUE_ELEMENT_ARRAY_ALIGNMENT); 4127 aligned_pointer += PQI_NUM_EVENT_QUEUE_ELEMENTS * 4128 PQI_EVENT_OQ_ELEMENT_LENGTH; 4129 4130 for (i = 0; i < num_queue_indexes; i++) { 4131 aligned_pointer = PTR_ALIGN(aligned_pointer, 4132 PQI_OPERATIONAL_INDEX_ALIGNMENT); 4133 aligned_pointer += sizeof(pqi_index_t); 4134 } 4135 4136 alloc_length = (size_t)aligned_pointer + 4137 PQI_QUEUE_ELEMENT_ARRAY_ALIGNMENT; 4138 4139 alloc_length += PQI_EXTRA_SGL_MEMORY; 4140 4141 ctrl_info->queue_memory_base = 4142 dma_alloc_coherent(&ctrl_info->pci_dev->dev, alloc_length, 4143 &ctrl_info->queue_memory_base_dma_handle, 4144 GFP_KERNEL); 4145 4146 if (!ctrl_info->queue_memory_base) 4147 return -ENOMEM; 4148 4149 ctrl_info->queue_memory_length = alloc_length; 4150 4151 element_array = PTR_ALIGN(ctrl_info->queue_memory_base, 4152 PQI_QUEUE_ELEMENT_ARRAY_ALIGNMENT); 4153 4154 for (i = 0; i < ctrl_info->num_queue_groups; i++) { 4155 queue_group = &ctrl_info->queue_groups[i]; 4156 queue_group->iq_element_array[RAID_PATH] = element_array; 4157 queue_group->iq_element_array_bus_addr[RAID_PATH] = 4158 ctrl_info->queue_memory_base_dma_handle + 4159 (element_array - ctrl_info->queue_memory_base); 4160 element_array += element_array_length_per_iq; 4161 element_array = PTR_ALIGN(element_array, 4162 PQI_QUEUE_ELEMENT_ARRAY_ALIGNMENT); 4163 queue_group->iq_element_array[AIO_PATH] = element_array; 4164 queue_group->iq_element_array_bus_addr[AIO_PATH] = 4165 ctrl_info->queue_memory_base_dma_handle + 4166 (element_array - ctrl_info->queue_memory_base); 4167 element_array += element_array_length_per_iq; 4168 element_array = PTR_ALIGN(element_array, 4169 PQI_QUEUE_ELEMENT_ARRAY_ALIGNMENT); 4170 } 4171 4172 for (i = 0; i < ctrl_info->num_queue_groups; i++) { 4173 queue_group = &ctrl_info->queue_groups[i]; 4174 queue_group->oq_element_array = element_array; 4175 queue_group->oq_element_array_bus_addr = 4176 ctrl_info->queue_memory_base_dma_handle + 4177 (element_array - ctrl_info->queue_memory_base); 4178 element_array += element_array_length_per_oq; 4179 element_array = PTR_ALIGN(element_array, 4180 PQI_QUEUE_ELEMENT_ARRAY_ALIGNMENT); 4181 } 4182 4183 ctrl_info->event_queue.oq_element_array = element_array; 4184 ctrl_info->event_queue.oq_element_array_bus_addr = 4185 ctrl_info->queue_memory_base_dma_handle + 4186 (element_array - ctrl_info->queue_memory_base); 4187 element_array += PQI_NUM_EVENT_QUEUE_ELEMENTS * 4188 PQI_EVENT_OQ_ELEMENT_LENGTH; 4189 4190 next_queue_index = (void __iomem *)PTR_ALIGN(element_array, 4191 PQI_OPERATIONAL_INDEX_ALIGNMENT); 4192 4193 for (i = 0; i < ctrl_info->num_queue_groups; i++) { 4194 queue_group = &ctrl_info->queue_groups[i]; 4195 queue_group->iq_ci[RAID_PATH] = next_queue_index; 4196 queue_group->iq_ci_bus_addr[RAID_PATH] = 4197 ctrl_info->queue_memory_base_dma_handle + 4198 (next_queue_index - 4199 (void __iomem *)ctrl_info->queue_memory_base); 4200 next_queue_index += sizeof(pqi_index_t); 4201 next_queue_index = PTR_ALIGN(next_queue_index, 4202 PQI_OPERATIONAL_INDEX_ALIGNMENT); 4203 queue_group->iq_ci[AIO_PATH] = next_queue_index; 4204 queue_group->iq_ci_bus_addr[AIO_PATH] = 4205 ctrl_info->queue_memory_base_dma_handle + 4206 (next_queue_index - 4207 (void __iomem *)ctrl_info->queue_memory_base); 4208 next_queue_index += sizeof(pqi_index_t); 4209 next_queue_index = PTR_ALIGN(next_queue_index, 4210 PQI_OPERATIONAL_INDEX_ALIGNMENT); 4211 queue_group->oq_pi = next_queue_index; 4212 queue_group->oq_pi_bus_addr = 4213 ctrl_info->queue_memory_base_dma_handle + 4214 (next_queue_index - 4215 (void __iomem *)ctrl_info->queue_memory_base); 4216 next_queue_index += sizeof(pqi_index_t); 4217 next_queue_index = PTR_ALIGN(next_queue_index, 4218 PQI_OPERATIONAL_INDEX_ALIGNMENT); 4219 } 4220 4221 ctrl_info->event_queue.oq_pi = next_queue_index; 4222 ctrl_info->event_queue.oq_pi_bus_addr = 4223 ctrl_info->queue_memory_base_dma_handle + 4224 (next_queue_index - 4225 (void __iomem *)ctrl_info->queue_memory_base); 4226 4227 return 0; 4228 } 4229 4230 static void pqi_init_operational_queues(struct pqi_ctrl_info *ctrl_info) 4231 { 4232 unsigned int i; 4233 u16 next_iq_id = PQI_MIN_OPERATIONAL_QUEUE_ID; 4234 u16 next_oq_id = PQI_MIN_OPERATIONAL_QUEUE_ID; 4235 4236 /* 4237 * Initialize the backpointers to the controller structure in 4238 * each operational queue group structure. 4239 */ 4240 for (i = 0; i < ctrl_info->num_queue_groups; i++) 4241 ctrl_info->queue_groups[i].ctrl_info = ctrl_info; 4242 4243 /* 4244 * Assign IDs to all operational queues. Note that the IDs 4245 * assigned to operational IQs are independent of the IDs 4246 * assigned to operational OQs. 4247 */ 4248 ctrl_info->event_queue.oq_id = next_oq_id++; 4249 for (i = 0; i < ctrl_info->num_queue_groups; i++) { 4250 ctrl_info->queue_groups[i].iq_id[RAID_PATH] = next_iq_id++; 4251 ctrl_info->queue_groups[i].iq_id[AIO_PATH] = next_iq_id++; 4252 ctrl_info->queue_groups[i].oq_id = next_oq_id++; 4253 } 4254 4255 /* 4256 * Assign MSI-X table entry indexes to all queues. Note that the 4257 * interrupt for the event queue is shared with the first queue group. 4258 */ 4259 ctrl_info->event_queue.int_msg_num = 0; 4260 for (i = 0; i < ctrl_info->num_queue_groups; i++) 4261 ctrl_info->queue_groups[i].int_msg_num = i; 4262 4263 for (i = 0; i < ctrl_info->num_queue_groups; i++) { 4264 spin_lock_init(&ctrl_info->queue_groups[i].submit_lock[0]); 4265 spin_lock_init(&ctrl_info->queue_groups[i].submit_lock[1]); 4266 INIT_LIST_HEAD(&ctrl_info->queue_groups[i].request_list[0]); 4267 INIT_LIST_HEAD(&ctrl_info->queue_groups[i].request_list[1]); 4268 } 4269 } 4270 4271 static int pqi_alloc_admin_queues(struct pqi_ctrl_info *ctrl_info) 4272 { 4273 size_t alloc_length; 4274 struct pqi_admin_queues_aligned *admin_queues_aligned; 4275 struct pqi_admin_queues *admin_queues; 4276 4277 alloc_length = sizeof(struct pqi_admin_queues_aligned) + 4278 PQI_QUEUE_ELEMENT_ARRAY_ALIGNMENT; 4279 4280 ctrl_info->admin_queue_memory_base = 4281 dma_alloc_coherent(&ctrl_info->pci_dev->dev, alloc_length, 4282 &ctrl_info->admin_queue_memory_base_dma_handle, 4283 GFP_KERNEL); 4284 4285 if (!ctrl_info->admin_queue_memory_base) 4286 return -ENOMEM; 4287 4288 ctrl_info->admin_queue_memory_length = alloc_length; 4289 4290 admin_queues = &ctrl_info->admin_queues; 4291 admin_queues_aligned = PTR_ALIGN(ctrl_info->admin_queue_memory_base, 4292 PQI_QUEUE_ELEMENT_ARRAY_ALIGNMENT); 4293 admin_queues->iq_element_array = 4294 &admin_queues_aligned->iq_element_array; 4295 admin_queues->oq_element_array = 4296 &admin_queues_aligned->oq_element_array; 4297 admin_queues->iq_ci = 4298 (pqi_index_t __iomem *)&admin_queues_aligned->iq_ci; 4299 admin_queues->oq_pi = 4300 (pqi_index_t __iomem *)&admin_queues_aligned->oq_pi; 4301 4302 admin_queues->iq_element_array_bus_addr = 4303 ctrl_info->admin_queue_memory_base_dma_handle + 4304 (admin_queues->iq_element_array - 4305 ctrl_info->admin_queue_memory_base); 4306 admin_queues->oq_element_array_bus_addr = 4307 ctrl_info->admin_queue_memory_base_dma_handle + 4308 (admin_queues->oq_element_array - 4309 ctrl_info->admin_queue_memory_base); 4310 admin_queues->iq_ci_bus_addr = 4311 ctrl_info->admin_queue_memory_base_dma_handle + 4312 ((void __iomem *)admin_queues->iq_ci - 4313 (void __iomem *)ctrl_info->admin_queue_memory_base); 4314 admin_queues->oq_pi_bus_addr = 4315 ctrl_info->admin_queue_memory_base_dma_handle + 4316 ((void __iomem *)admin_queues->oq_pi - 4317 (void __iomem *)ctrl_info->admin_queue_memory_base); 4318 4319 return 0; 4320 } 4321 4322 #define PQI_ADMIN_QUEUE_CREATE_TIMEOUT_JIFFIES HZ 4323 #define PQI_ADMIN_QUEUE_CREATE_POLL_INTERVAL_MSECS 1 4324 4325 static int pqi_create_admin_queues(struct pqi_ctrl_info *ctrl_info) 4326 { 4327 struct pqi_device_registers __iomem *pqi_registers; 4328 struct pqi_admin_queues *admin_queues; 4329 unsigned long timeout; 4330 u8 status; 4331 u32 reg; 4332 4333 pqi_registers = ctrl_info->pqi_registers; 4334 admin_queues = &ctrl_info->admin_queues; 4335 4336 writeq((u64)admin_queues->iq_element_array_bus_addr, 4337 &pqi_registers->admin_iq_element_array_addr); 4338 writeq((u64)admin_queues->oq_element_array_bus_addr, 4339 &pqi_registers->admin_oq_element_array_addr); 4340 writeq((u64)admin_queues->iq_ci_bus_addr, 4341 &pqi_registers->admin_iq_ci_addr); 4342 writeq((u64)admin_queues->oq_pi_bus_addr, 4343 &pqi_registers->admin_oq_pi_addr); 4344 4345 reg = PQI_ADMIN_IQ_NUM_ELEMENTS | 4346 (PQI_ADMIN_OQ_NUM_ELEMENTS << 8) | 4347 (admin_queues->int_msg_num << 16); 4348 writel(reg, &pqi_registers->admin_iq_num_elements); 4349 4350 writel(PQI_CREATE_ADMIN_QUEUE_PAIR, 4351 &pqi_registers->function_and_status_code); 4352 4353 timeout = PQI_ADMIN_QUEUE_CREATE_TIMEOUT_JIFFIES + jiffies; 4354 while (1) { 4355 msleep(PQI_ADMIN_QUEUE_CREATE_POLL_INTERVAL_MSECS); 4356 status = readb(&pqi_registers->function_and_status_code); 4357 if (status == PQI_STATUS_IDLE) 4358 break; 4359 if (time_after(jiffies, timeout)) 4360 return -ETIMEDOUT; 4361 } 4362 4363 /* 4364 * The offset registers are not initialized to the correct 4365 * offsets until *after* the create admin queue pair command 4366 * completes successfully. 4367 */ 4368 admin_queues->iq_pi = ctrl_info->iomem_base + 4369 PQI_DEVICE_REGISTERS_OFFSET + 4370 readq(&pqi_registers->admin_iq_pi_offset); 4371 admin_queues->oq_ci = ctrl_info->iomem_base + 4372 PQI_DEVICE_REGISTERS_OFFSET + 4373 readq(&pqi_registers->admin_oq_ci_offset); 4374 4375 return 0; 4376 } 4377 4378 static void pqi_submit_admin_request(struct pqi_ctrl_info *ctrl_info, 4379 struct pqi_general_admin_request *request) 4380 { 4381 struct pqi_admin_queues *admin_queues; 4382 void *next_element; 4383 pqi_index_t iq_pi; 4384 4385 admin_queues = &ctrl_info->admin_queues; 4386 iq_pi = admin_queues->iq_pi_copy; 4387 4388 next_element = admin_queues->iq_element_array + 4389 (iq_pi * PQI_ADMIN_IQ_ELEMENT_LENGTH); 4390 4391 memcpy(next_element, request, sizeof(*request)); 4392 4393 iq_pi = (iq_pi + 1) % PQI_ADMIN_IQ_NUM_ELEMENTS; 4394 admin_queues->iq_pi_copy = iq_pi; 4395 4396 /* 4397 * This write notifies the controller that an IU is available to be 4398 * processed. 4399 */ 4400 writel(iq_pi, admin_queues->iq_pi); 4401 } 4402 4403 #define PQI_ADMIN_REQUEST_TIMEOUT_SECS 60 4404 4405 static int pqi_poll_for_admin_response(struct pqi_ctrl_info *ctrl_info, 4406 struct pqi_general_admin_response *response) 4407 { 4408 struct pqi_admin_queues *admin_queues; 4409 pqi_index_t oq_pi; 4410 pqi_index_t oq_ci; 4411 unsigned long timeout; 4412 4413 admin_queues = &ctrl_info->admin_queues; 4414 oq_ci = admin_queues->oq_ci_copy; 4415 4416 timeout = (PQI_ADMIN_REQUEST_TIMEOUT_SECS * HZ) + jiffies; 4417 4418 while (1) { 4419 oq_pi = readl(admin_queues->oq_pi); 4420 if (oq_pi != oq_ci) 4421 break; 4422 if (time_after(jiffies, timeout)) { 4423 dev_err(&ctrl_info->pci_dev->dev, 4424 "timed out waiting for admin response\n"); 4425 return -ETIMEDOUT; 4426 } 4427 if (!sis_is_firmware_running(ctrl_info)) 4428 return -ENXIO; 4429 usleep_range(1000, 2000); 4430 } 4431 4432 memcpy(response, admin_queues->oq_element_array + 4433 (oq_ci * PQI_ADMIN_OQ_ELEMENT_LENGTH), sizeof(*response)); 4434 4435 oq_ci = (oq_ci + 1) % PQI_ADMIN_OQ_NUM_ELEMENTS; 4436 admin_queues->oq_ci_copy = oq_ci; 4437 writel(oq_ci, admin_queues->oq_ci); 4438 4439 return 0; 4440 } 4441 4442 static void pqi_start_io(struct pqi_ctrl_info *ctrl_info, 4443 struct pqi_queue_group *queue_group, enum pqi_io_path path, 4444 struct pqi_io_request *io_request) 4445 { 4446 struct pqi_io_request *next; 4447 void *next_element; 4448 pqi_index_t iq_pi; 4449 pqi_index_t iq_ci; 4450 size_t iu_length; 4451 unsigned long flags; 4452 unsigned int num_elements_needed; 4453 unsigned int num_elements_to_end_of_queue; 4454 size_t copy_count; 4455 struct pqi_iu_header *request; 4456 4457 spin_lock_irqsave(&queue_group->submit_lock[path], flags); 4458 4459 if (io_request) { 4460 io_request->queue_group = queue_group; 4461 list_add_tail(&io_request->request_list_entry, 4462 &queue_group->request_list[path]); 4463 } 4464 4465 iq_pi = queue_group->iq_pi_copy[path]; 4466 4467 list_for_each_entry_safe(io_request, next, 4468 &queue_group->request_list[path], request_list_entry) { 4469 4470 request = io_request->iu; 4471 4472 iu_length = get_unaligned_le16(&request->iu_length) + 4473 PQI_REQUEST_HEADER_LENGTH; 4474 num_elements_needed = 4475 DIV_ROUND_UP(iu_length, 4476 PQI_OPERATIONAL_IQ_ELEMENT_LENGTH); 4477 4478 iq_ci = readl(queue_group->iq_ci[path]); 4479 4480 if (num_elements_needed > pqi_num_elements_free(iq_pi, iq_ci, 4481 ctrl_info->num_elements_per_iq)) 4482 break; 4483 4484 put_unaligned_le16(queue_group->oq_id, 4485 &request->response_queue_id); 4486 4487 next_element = queue_group->iq_element_array[path] + 4488 (iq_pi * PQI_OPERATIONAL_IQ_ELEMENT_LENGTH); 4489 4490 num_elements_to_end_of_queue = 4491 ctrl_info->num_elements_per_iq - iq_pi; 4492 4493 if (num_elements_needed <= num_elements_to_end_of_queue) { 4494 memcpy(next_element, request, iu_length); 4495 } else { 4496 copy_count = num_elements_to_end_of_queue * 4497 PQI_OPERATIONAL_IQ_ELEMENT_LENGTH; 4498 memcpy(next_element, request, copy_count); 4499 memcpy(queue_group->iq_element_array[path], 4500 (u8 *)request + copy_count, 4501 iu_length - copy_count); 4502 } 4503 4504 iq_pi = (iq_pi + num_elements_needed) % 4505 ctrl_info->num_elements_per_iq; 4506 4507 list_del(&io_request->request_list_entry); 4508 } 4509 4510 if (iq_pi != queue_group->iq_pi_copy[path]) { 4511 queue_group->iq_pi_copy[path] = iq_pi; 4512 /* 4513 * This write notifies the controller that one or more IUs are 4514 * available to be processed. 4515 */ 4516 writel(iq_pi, queue_group->iq_pi[path]); 4517 } 4518 4519 spin_unlock_irqrestore(&queue_group->submit_lock[path], flags); 4520 } 4521 4522 #define PQI_WAIT_FOR_COMPLETION_IO_TIMEOUT_SECS 10 4523 4524 static int pqi_wait_for_completion_io(struct pqi_ctrl_info *ctrl_info, 4525 struct completion *wait) 4526 { 4527 int rc; 4528 4529 while (1) { 4530 if (wait_for_completion_io_timeout(wait, 4531 PQI_WAIT_FOR_COMPLETION_IO_TIMEOUT_SECS * HZ)) { 4532 rc = 0; 4533 break; 4534 } 4535 4536 pqi_check_ctrl_health(ctrl_info); 4537 if (pqi_ctrl_offline(ctrl_info)) { 4538 rc = -ENXIO; 4539 break; 4540 } 4541 } 4542 4543 return rc; 4544 } 4545 4546 static void pqi_raid_synchronous_complete(struct pqi_io_request *io_request, 4547 void *context) 4548 { 4549 struct completion *waiting = context; 4550 4551 complete(waiting); 4552 } 4553 4554 static int pqi_process_raid_io_error_synchronous( 4555 struct pqi_raid_error_info *error_info) 4556 { 4557 int rc = -EIO; 4558 4559 switch (error_info->data_out_result) { 4560 case PQI_DATA_IN_OUT_GOOD: 4561 if (error_info->status == SAM_STAT_GOOD) 4562 rc = 0; 4563 break; 4564 case PQI_DATA_IN_OUT_UNDERFLOW: 4565 if (error_info->status == SAM_STAT_GOOD || 4566 error_info->status == SAM_STAT_CHECK_CONDITION) 4567 rc = 0; 4568 break; 4569 case PQI_DATA_IN_OUT_ABORTED: 4570 rc = PQI_CMD_STATUS_ABORTED; 4571 break; 4572 } 4573 4574 return rc; 4575 } 4576 4577 static inline bool pqi_is_blockable_request(struct pqi_iu_header *request) 4578 { 4579 return (request->driver_flags & PQI_DRIVER_NONBLOCKABLE_REQUEST) == 0; 4580 } 4581 4582 static int pqi_submit_raid_request_synchronous(struct pqi_ctrl_info *ctrl_info, 4583 struct pqi_iu_header *request, unsigned int flags, 4584 struct pqi_raid_error_info *error_info) 4585 { 4586 int rc = 0; 4587 struct pqi_io_request *io_request; 4588 size_t iu_length; 4589 DECLARE_COMPLETION_ONSTACK(wait); 4590 4591 if (flags & PQI_SYNC_FLAGS_INTERRUPTABLE) { 4592 if (down_interruptible(&ctrl_info->sync_request_sem)) 4593 return -ERESTARTSYS; 4594 } else { 4595 down(&ctrl_info->sync_request_sem); 4596 } 4597 4598 pqi_ctrl_busy(ctrl_info); 4599 /* 4600 * Wait for other admin queue updates such as; 4601 * config table changes, OFA memory updates, ... 4602 */ 4603 if (pqi_is_blockable_request(request)) 4604 pqi_wait_if_ctrl_blocked(ctrl_info); 4605 4606 if (pqi_ctrl_offline(ctrl_info)) { 4607 rc = -ENXIO; 4608 goto out; 4609 } 4610 4611 io_request = pqi_alloc_io_request(ctrl_info, NULL); 4612 4613 put_unaligned_le16(io_request->index, 4614 &(((struct pqi_raid_path_request *)request)->request_id)); 4615 4616 if (request->iu_type == PQI_REQUEST_IU_RAID_PATH_IO) 4617 ((struct pqi_raid_path_request *)request)->error_index = 4618 ((struct pqi_raid_path_request *)request)->request_id; 4619 4620 iu_length = get_unaligned_le16(&request->iu_length) + 4621 PQI_REQUEST_HEADER_LENGTH; 4622 memcpy(io_request->iu, request, iu_length); 4623 4624 io_request->io_complete_callback = pqi_raid_synchronous_complete; 4625 io_request->context = &wait; 4626 4627 pqi_start_io(ctrl_info, &ctrl_info->queue_groups[PQI_DEFAULT_QUEUE_GROUP], RAID_PATH, 4628 io_request); 4629 4630 pqi_wait_for_completion_io(ctrl_info, &wait); 4631 4632 if (error_info) { 4633 if (io_request->error_info) 4634 memcpy(error_info, io_request->error_info, sizeof(*error_info)); 4635 else 4636 memset(error_info, 0, sizeof(*error_info)); 4637 } else if (rc == 0 && io_request->error_info) { 4638 rc = pqi_process_raid_io_error_synchronous(io_request->error_info); 4639 } 4640 4641 pqi_free_io_request(io_request); 4642 4643 out: 4644 pqi_ctrl_unbusy(ctrl_info); 4645 up(&ctrl_info->sync_request_sem); 4646 4647 return rc; 4648 } 4649 4650 static int pqi_validate_admin_response( 4651 struct pqi_general_admin_response *response, u8 expected_function_code) 4652 { 4653 if (response->header.iu_type != PQI_RESPONSE_IU_GENERAL_ADMIN) 4654 return -EINVAL; 4655 4656 if (get_unaligned_le16(&response->header.iu_length) != 4657 PQI_GENERAL_ADMIN_IU_LENGTH) 4658 return -EINVAL; 4659 4660 if (response->function_code != expected_function_code) 4661 return -EINVAL; 4662 4663 if (response->status != PQI_GENERAL_ADMIN_STATUS_SUCCESS) 4664 return -EINVAL; 4665 4666 return 0; 4667 } 4668 4669 static int pqi_submit_admin_request_synchronous( 4670 struct pqi_ctrl_info *ctrl_info, 4671 struct pqi_general_admin_request *request, 4672 struct pqi_general_admin_response *response) 4673 { 4674 int rc; 4675 4676 pqi_submit_admin_request(ctrl_info, request); 4677 4678 rc = pqi_poll_for_admin_response(ctrl_info, response); 4679 4680 if (rc == 0) 4681 rc = pqi_validate_admin_response(response, request->function_code); 4682 4683 return rc; 4684 } 4685 4686 static int pqi_report_device_capability(struct pqi_ctrl_info *ctrl_info) 4687 { 4688 int rc; 4689 struct pqi_general_admin_request request; 4690 struct pqi_general_admin_response response; 4691 struct pqi_device_capability *capability; 4692 struct pqi_iu_layer_descriptor *sop_iu_layer_descriptor; 4693 4694 capability = kmalloc(sizeof(*capability), GFP_KERNEL); 4695 if (!capability) 4696 return -ENOMEM; 4697 4698 memset(&request, 0, sizeof(request)); 4699 4700 request.header.iu_type = PQI_REQUEST_IU_GENERAL_ADMIN; 4701 put_unaligned_le16(PQI_GENERAL_ADMIN_IU_LENGTH, 4702 &request.header.iu_length); 4703 request.function_code = 4704 PQI_GENERAL_ADMIN_FUNCTION_REPORT_DEVICE_CAPABILITY; 4705 put_unaligned_le32(sizeof(*capability), 4706 &request.data.report_device_capability.buffer_length); 4707 4708 rc = pqi_map_single(ctrl_info->pci_dev, 4709 &request.data.report_device_capability.sg_descriptor, 4710 capability, sizeof(*capability), 4711 DMA_FROM_DEVICE); 4712 if (rc) 4713 goto out; 4714 4715 rc = pqi_submit_admin_request_synchronous(ctrl_info, &request, &response); 4716 4717 pqi_pci_unmap(ctrl_info->pci_dev, 4718 &request.data.report_device_capability.sg_descriptor, 1, 4719 DMA_FROM_DEVICE); 4720 4721 if (rc) 4722 goto out; 4723 4724 if (response.status != PQI_GENERAL_ADMIN_STATUS_SUCCESS) { 4725 rc = -EIO; 4726 goto out; 4727 } 4728 4729 ctrl_info->max_inbound_queues = 4730 get_unaligned_le16(&capability->max_inbound_queues); 4731 ctrl_info->max_elements_per_iq = 4732 get_unaligned_le16(&capability->max_elements_per_iq); 4733 ctrl_info->max_iq_element_length = 4734 get_unaligned_le16(&capability->max_iq_element_length) 4735 * 16; 4736 ctrl_info->max_outbound_queues = 4737 get_unaligned_le16(&capability->max_outbound_queues); 4738 ctrl_info->max_elements_per_oq = 4739 get_unaligned_le16(&capability->max_elements_per_oq); 4740 ctrl_info->max_oq_element_length = 4741 get_unaligned_le16(&capability->max_oq_element_length) 4742 * 16; 4743 4744 sop_iu_layer_descriptor = 4745 &capability->iu_layer_descriptors[PQI_PROTOCOL_SOP]; 4746 4747 ctrl_info->max_inbound_iu_length_per_firmware = 4748 get_unaligned_le16( 4749 &sop_iu_layer_descriptor->max_inbound_iu_length); 4750 ctrl_info->inbound_spanning_supported = 4751 sop_iu_layer_descriptor->inbound_spanning_supported; 4752 ctrl_info->outbound_spanning_supported = 4753 sop_iu_layer_descriptor->outbound_spanning_supported; 4754 4755 out: 4756 kfree(capability); 4757 4758 return rc; 4759 } 4760 4761 static int pqi_validate_device_capability(struct pqi_ctrl_info *ctrl_info) 4762 { 4763 if (ctrl_info->max_iq_element_length < 4764 PQI_OPERATIONAL_IQ_ELEMENT_LENGTH) { 4765 dev_err(&ctrl_info->pci_dev->dev, 4766 "max. inbound queue element length of %d is less than the required length of %d\n", 4767 ctrl_info->max_iq_element_length, 4768 PQI_OPERATIONAL_IQ_ELEMENT_LENGTH); 4769 return -EINVAL; 4770 } 4771 4772 if (ctrl_info->max_oq_element_length < 4773 PQI_OPERATIONAL_OQ_ELEMENT_LENGTH) { 4774 dev_err(&ctrl_info->pci_dev->dev, 4775 "max. outbound queue element length of %d is less than the required length of %d\n", 4776 ctrl_info->max_oq_element_length, 4777 PQI_OPERATIONAL_OQ_ELEMENT_LENGTH); 4778 return -EINVAL; 4779 } 4780 4781 if (ctrl_info->max_inbound_iu_length_per_firmware < 4782 PQI_OPERATIONAL_IQ_ELEMENT_LENGTH) { 4783 dev_err(&ctrl_info->pci_dev->dev, 4784 "max. inbound IU length of %u is less than the min. required length of %d\n", 4785 ctrl_info->max_inbound_iu_length_per_firmware, 4786 PQI_OPERATIONAL_IQ_ELEMENT_LENGTH); 4787 return -EINVAL; 4788 } 4789 4790 if (!ctrl_info->inbound_spanning_supported) { 4791 dev_err(&ctrl_info->pci_dev->dev, 4792 "the controller does not support inbound spanning\n"); 4793 return -EINVAL; 4794 } 4795 4796 if (ctrl_info->outbound_spanning_supported) { 4797 dev_err(&ctrl_info->pci_dev->dev, 4798 "the controller supports outbound spanning but this driver does not\n"); 4799 return -EINVAL; 4800 } 4801 4802 return 0; 4803 } 4804 4805 static int pqi_create_event_queue(struct pqi_ctrl_info *ctrl_info) 4806 { 4807 int rc; 4808 struct pqi_event_queue *event_queue; 4809 struct pqi_general_admin_request request; 4810 struct pqi_general_admin_response response; 4811 4812 event_queue = &ctrl_info->event_queue; 4813 4814 /* 4815 * Create OQ (Outbound Queue - device to host queue) to dedicate 4816 * to events. 4817 */ 4818 memset(&request, 0, sizeof(request)); 4819 request.header.iu_type = PQI_REQUEST_IU_GENERAL_ADMIN; 4820 put_unaligned_le16(PQI_GENERAL_ADMIN_IU_LENGTH, 4821 &request.header.iu_length); 4822 request.function_code = PQI_GENERAL_ADMIN_FUNCTION_CREATE_OQ; 4823 put_unaligned_le16(event_queue->oq_id, 4824 &request.data.create_operational_oq.queue_id); 4825 put_unaligned_le64((u64)event_queue->oq_element_array_bus_addr, 4826 &request.data.create_operational_oq.element_array_addr); 4827 put_unaligned_le64((u64)event_queue->oq_pi_bus_addr, 4828 &request.data.create_operational_oq.pi_addr); 4829 put_unaligned_le16(PQI_NUM_EVENT_QUEUE_ELEMENTS, 4830 &request.data.create_operational_oq.num_elements); 4831 put_unaligned_le16(PQI_EVENT_OQ_ELEMENT_LENGTH / 16, 4832 &request.data.create_operational_oq.element_length); 4833 request.data.create_operational_oq.queue_protocol = PQI_PROTOCOL_SOP; 4834 put_unaligned_le16(event_queue->int_msg_num, 4835 &request.data.create_operational_oq.int_msg_num); 4836 4837 rc = pqi_submit_admin_request_synchronous(ctrl_info, &request, 4838 &response); 4839 if (rc) 4840 return rc; 4841 4842 event_queue->oq_ci = ctrl_info->iomem_base + 4843 PQI_DEVICE_REGISTERS_OFFSET + 4844 get_unaligned_le64( 4845 &response.data.create_operational_oq.oq_ci_offset); 4846 4847 return 0; 4848 } 4849 4850 static int pqi_create_queue_group(struct pqi_ctrl_info *ctrl_info, 4851 unsigned int group_number) 4852 { 4853 int rc; 4854 struct pqi_queue_group *queue_group; 4855 struct pqi_general_admin_request request; 4856 struct pqi_general_admin_response response; 4857 4858 queue_group = &ctrl_info->queue_groups[group_number]; 4859 4860 /* 4861 * Create IQ (Inbound Queue - host to device queue) for 4862 * RAID path. 4863 */ 4864 memset(&request, 0, sizeof(request)); 4865 request.header.iu_type = PQI_REQUEST_IU_GENERAL_ADMIN; 4866 put_unaligned_le16(PQI_GENERAL_ADMIN_IU_LENGTH, 4867 &request.header.iu_length); 4868 request.function_code = PQI_GENERAL_ADMIN_FUNCTION_CREATE_IQ; 4869 put_unaligned_le16(queue_group->iq_id[RAID_PATH], 4870 &request.data.create_operational_iq.queue_id); 4871 put_unaligned_le64( 4872 (u64)queue_group->iq_element_array_bus_addr[RAID_PATH], 4873 &request.data.create_operational_iq.element_array_addr); 4874 put_unaligned_le64((u64)queue_group->iq_ci_bus_addr[RAID_PATH], 4875 &request.data.create_operational_iq.ci_addr); 4876 put_unaligned_le16(ctrl_info->num_elements_per_iq, 4877 &request.data.create_operational_iq.num_elements); 4878 put_unaligned_le16(PQI_OPERATIONAL_IQ_ELEMENT_LENGTH / 16, 4879 &request.data.create_operational_iq.element_length); 4880 request.data.create_operational_iq.queue_protocol = PQI_PROTOCOL_SOP; 4881 4882 rc = pqi_submit_admin_request_synchronous(ctrl_info, &request, 4883 &response); 4884 if (rc) { 4885 dev_err(&ctrl_info->pci_dev->dev, 4886 "error creating inbound RAID queue\n"); 4887 return rc; 4888 } 4889 4890 queue_group->iq_pi[RAID_PATH] = ctrl_info->iomem_base + 4891 PQI_DEVICE_REGISTERS_OFFSET + 4892 get_unaligned_le64( 4893 &response.data.create_operational_iq.iq_pi_offset); 4894 4895 /* 4896 * Create IQ (Inbound Queue - host to device queue) for 4897 * Advanced I/O (AIO) path. 4898 */ 4899 memset(&request, 0, sizeof(request)); 4900 request.header.iu_type = PQI_REQUEST_IU_GENERAL_ADMIN; 4901 put_unaligned_le16(PQI_GENERAL_ADMIN_IU_LENGTH, 4902 &request.header.iu_length); 4903 request.function_code = PQI_GENERAL_ADMIN_FUNCTION_CREATE_IQ; 4904 put_unaligned_le16(queue_group->iq_id[AIO_PATH], 4905 &request.data.create_operational_iq.queue_id); 4906 put_unaligned_le64((u64)queue_group-> 4907 iq_element_array_bus_addr[AIO_PATH], 4908 &request.data.create_operational_iq.element_array_addr); 4909 put_unaligned_le64((u64)queue_group->iq_ci_bus_addr[AIO_PATH], 4910 &request.data.create_operational_iq.ci_addr); 4911 put_unaligned_le16(ctrl_info->num_elements_per_iq, 4912 &request.data.create_operational_iq.num_elements); 4913 put_unaligned_le16(PQI_OPERATIONAL_IQ_ELEMENT_LENGTH / 16, 4914 &request.data.create_operational_iq.element_length); 4915 request.data.create_operational_iq.queue_protocol = PQI_PROTOCOL_SOP; 4916 4917 rc = pqi_submit_admin_request_synchronous(ctrl_info, &request, 4918 &response); 4919 if (rc) { 4920 dev_err(&ctrl_info->pci_dev->dev, 4921 "error creating inbound AIO queue\n"); 4922 return rc; 4923 } 4924 4925 queue_group->iq_pi[AIO_PATH] = ctrl_info->iomem_base + 4926 PQI_DEVICE_REGISTERS_OFFSET + 4927 get_unaligned_le64( 4928 &response.data.create_operational_iq.iq_pi_offset); 4929 4930 /* 4931 * Designate the 2nd IQ as the AIO path. By default, all IQs are 4932 * assumed to be for RAID path I/O unless we change the queue's 4933 * property. 4934 */ 4935 memset(&request, 0, sizeof(request)); 4936 request.header.iu_type = PQI_REQUEST_IU_GENERAL_ADMIN; 4937 put_unaligned_le16(PQI_GENERAL_ADMIN_IU_LENGTH, 4938 &request.header.iu_length); 4939 request.function_code = PQI_GENERAL_ADMIN_FUNCTION_CHANGE_IQ_PROPERTY; 4940 put_unaligned_le16(queue_group->iq_id[AIO_PATH], 4941 &request.data.change_operational_iq_properties.queue_id); 4942 put_unaligned_le32(PQI_IQ_PROPERTY_IS_AIO_QUEUE, 4943 &request.data.change_operational_iq_properties.vendor_specific); 4944 4945 rc = pqi_submit_admin_request_synchronous(ctrl_info, &request, 4946 &response); 4947 if (rc) { 4948 dev_err(&ctrl_info->pci_dev->dev, 4949 "error changing queue property\n"); 4950 return rc; 4951 } 4952 4953 /* 4954 * Create OQ (Outbound Queue - device to host queue). 4955 */ 4956 memset(&request, 0, sizeof(request)); 4957 request.header.iu_type = PQI_REQUEST_IU_GENERAL_ADMIN; 4958 put_unaligned_le16(PQI_GENERAL_ADMIN_IU_LENGTH, 4959 &request.header.iu_length); 4960 request.function_code = PQI_GENERAL_ADMIN_FUNCTION_CREATE_OQ; 4961 put_unaligned_le16(queue_group->oq_id, 4962 &request.data.create_operational_oq.queue_id); 4963 put_unaligned_le64((u64)queue_group->oq_element_array_bus_addr, 4964 &request.data.create_operational_oq.element_array_addr); 4965 put_unaligned_le64((u64)queue_group->oq_pi_bus_addr, 4966 &request.data.create_operational_oq.pi_addr); 4967 put_unaligned_le16(ctrl_info->num_elements_per_oq, 4968 &request.data.create_operational_oq.num_elements); 4969 put_unaligned_le16(PQI_OPERATIONAL_OQ_ELEMENT_LENGTH / 16, 4970 &request.data.create_operational_oq.element_length); 4971 request.data.create_operational_oq.queue_protocol = PQI_PROTOCOL_SOP; 4972 put_unaligned_le16(queue_group->int_msg_num, 4973 &request.data.create_operational_oq.int_msg_num); 4974 4975 rc = pqi_submit_admin_request_synchronous(ctrl_info, &request, 4976 &response); 4977 if (rc) { 4978 dev_err(&ctrl_info->pci_dev->dev, 4979 "error creating outbound queue\n"); 4980 return rc; 4981 } 4982 4983 queue_group->oq_ci = ctrl_info->iomem_base + 4984 PQI_DEVICE_REGISTERS_OFFSET + 4985 get_unaligned_le64( 4986 &response.data.create_operational_oq.oq_ci_offset); 4987 4988 return 0; 4989 } 4990 4991 static int pqi_create_queues(struct pqi_ctrl_info *ctrl_info) 4992 { 4993 int rc; 4994 unsigned int i; 4995 4996 rc = pqi_create_event_queue(ctrl_info); 4997 if (rc) { 4998 dev_err(&ctrl_info->pci_dev->dev, 4999 "error creating event queue\n"); 5000 return rc; 5001 } 5002 5003 for (i = 0; i < ctrl_info->num_queue_groups; i++) { 5004 rc = pqi_create_queue_group(ctrl_info, i); 5005 if (rc) { 5006 dev_err(&ctrl_info->pci_dev->dev, 5007 "error creating queue group number %u/%u\n", 5008 i, ctrl_info->num_queue_groups); 5009 return rc; 5010 } 5011 } 5012 5013 return 0; 5014 } 5015 5016 #define PQI_REPORT_EVENT_CONFIG_BUFFER_LENGTH \ 5017 struct_size((struct pqi_event_config *)0, descriptors, PQI_MAX_EVENT_DESCRIPTORS) 5018 5019 static int pqi_configure_events(struct pqi_ctrl_info *ctrl_info, 5020 bool enable_events) 5021 { 5022 int rc; 5023 unsigned int i; 5024 struct pqi_event_config *event_config; 5025 struct pqi_event_descriptor *event_descriptor; 5026 struct pqi_general_management_request request; 5027 5028 event_config = kmalloc(PQI_REPORT_EVENT_CONFIG_BUFFER_LENGTH, 5029 GFP_KERNEL); 5030 if (!event_config) 5031 return -ENOMEM; 5032 5033 memset(&request, 0, sizeof(request)); 5034 5035 request.header.iu_type = PQI_REQUEST_IU_REPORT_VENDOR_EVENT_CONFIG; 5036 put_unaligned_le16(offsetof(struct pqi_general_management_request, 5037 data.report_event_configuration.sg_descriptors[1]) - 5038 PQI_REQUEST_HEADER_LENGTH, &request.header.iu_length); 5039 put_unaligned_le32(PQI_REPORT_EVENT_CONFIG_BUFFER_LENGTH, 5040 &request.data.report_event_configuration.buffer_length); 5041 5042 rc = pqi_map_single(ctrl_info->pci_dev, 5043 request.data.report_event_configuration.sg_descriptors, 5044 event_config, PQI_REPORT_EVENT_CONFIG_BUFFER_LENGTH, 5045 DMA_FROM_DEVICE); 5046 if (rc) 5047 goto out; 5048 5049 rc = pqi_submit_raid_request_synchronous(ctrl_info, &request.header, 0, NULL); 5050 5051 pqi_pci_unmap(ctrl_info->pci_dev, 5052 request.data.report_event_configuration.sg_descriptors, 1, 5053 DMA_FROM_DEVICE); 5054 5055 if (rc) 5056 goto out; 5057 5058 for (i = 0; i < event_config->num_event_descriptors; i++) { 5059 event_descriptor = &event_config->descriptors[i]; 5060 if (enable_events && 5061 pqi_is_supported_event(event_descriptor->event_type)) 5062 put_unaligned_le16(ctrl_info->event_queue.oq_id, 5063 &event_descriptor->oq_id); 5064 else 5065 put_unaligned_le16(0, &event_descriptor->oq_id); 5066 } 5067 5068 memset(&request, 0, sizeof(request)); 5069 5070 request.header.iu_type = PQI_REQUEST_IU_SET_VENDOR_EVENT_CONFIG; 5071 put_unaligned_le16(offsetof(struct pqi_general_management_request, 5072 data.report_event_configuration.sg_descriptors[1]) - 5073 PQI_REQUEST_HEADER_LENGTH, &request.header.iu_length); 5074 put_unaligned_le32(PQI_REPORT_EVENT_CONFIG_BUFFER_LENGTH, 5075 &request.data.report_event_configuration.buffer_length); 5076 5077 rc = pqi_map_single(ctrl_info->pci_dev, 5078 request.data.report_event_configuration.sg_descriptors, 5079 event_config, PQI_REPORT_EVENT_CONFIG_BUFFER_LENGTH, 5080 DMA_TO_DEVICE); 5081 if (rc) 5082 goto out; 5083 5084 rc = pqi_submit_raid_request_synchronous(ctrl_info, &request.header, 0, NULL); 5085 5086 pqi_pci_unmap(ctrl_info->pci_dev, 5087 request.data.report_event_configuration.sg_descriptors, 1, 5088 DMA_TO_DEVICE); 5089 5090 out: 5091 kfree(event_config); 5092 5093 return rc; 5094 } 5095 5096 static inline int pqi_enable_events(struct pqi_ctrl_info *ctrl_info) 5097 { 5098 return pqi_configure_events(ctrl_info, true); 5099 } 5100 5101 static void pqi_free_all_io_requests(struct pqi_ctrl_info *ctrl_info) 5102 { 5103 unsigned int i; 5104 struct device *dev; 5105 size_t sg_chain_buffer_length; 5106 struct pqi_io_request *io_request; 5107 5108 if (!ctrl_info->io_request_pool) 5109 return; 5110 5111 dev = &ctrl_info->pci_dev->dev; 5112 sg_chain_buffer_length = ctrl_info->sg_chain_buffer_length; 5113 io_request = ctrl_info->io_request_pool; 5114 5115 for (i = 0; i < ctrl_info->max_io_slots; i++) { 5116 kfree(io_request->iu); 5117 if (!io_request->sg_chain_buffer) 5118 break; 5119 dma_free_coherent(dev, sg_chain_buffer_length, 5120 io_request->sg_chain_buffer, 5121 io_request->sg_chain_buffer_dma_handle); 5122 io_request++; 5123 } 5124 5125 kfree(ctrl_info->io_request_pool); 5126 ctrl_info->io_request_pool = NULL; 5127 } 5128 5129 static inline int pqi_alloc_error_buffer(struct pqi_ctrl_info *ctrl_info) 5130 { 5131 ctrl_info->error_buffer = dma_alloc_coherent(&ctrl_info->pci_dev->dev, 5132 ctrl_info->error_buffer_length, 5133 &ctrl_info->error_buffer_dma_handle, 5134 GFP_KERNEL); 5135 if (!ctrl_info->error_buffer) 5136 return -ENOMEM; 5137 5138 return 0; 5139 } 5140 5141 static int pqi_alloc_io_resources(struct pqi_ctrl_info *ctrl_info) 5142 { 5143 unsigned int i; 5144 void *sg_chain_buffer; 5145 size_t sg_chain_buffer_length; 5146 dma_addr_t sg_chain_buffer_dma_handle; 5147 struct device *dev; 5148 struct pqi_io_request *io_request; 5149 5150 ctrl_info->io_request_pool = kcalloc(ctrl_info->max_io_slots, 5151 sizeof(ctrl_info->io_request_pool[0]), GFP_KERNEL); 5152 5153 if (!ctrl_info->io_request_pool) { 5154 dev_err(&ctrl_info->pci_dev->dev, 5155 "failed to allocate I/O request pool\n"); 5156 goto error; 5157 } 5158 5159 dev = &ctrl_info->pci_dev->dev; 5160 sg_chain_buffer_length = ctrl_info->sg_chain_buffer_length; 5161 io_request = ctrl_info->io_request_pool; 5162 5163 for (i = 0; i < ctrl_info->max_io_slots; i++) { 5164 io_request->iu = kmalloc(ctrl_info->max_inbound_iu_length, GFP_KERNEL); 5165 5166 if (!io_request->iu) { 5167 dev_err(&ctrl_info->pci_dev->dev, 5168 "failed to allocate IU buffers\n"); 5169 goto error; 5170 } 5171 5172 sg_chain_buffer = dma_alloc_coherent(dev, 5173 sg_chain_buffer_length, &sg_chain_buffer_dma_handle, 5174 GFP_KERNEL); 5175 5176 if (!sg_chain_buffer) { 5177 dev_err(&ctrl_info->pci_dev->dev, 5178 "failed to allocate PQI scatter-gather chain buffers\n"); 5179 goto error; 5180 } 5181 5182 io_request->index = i; 5183 io_request->sg_chain_buffer = sg_chain_buffer; 5184 io_request->sg_chain_buffer_dma_handle = sg_chain_buffer_dma_handle; 5185 io_request++; 5186 } 5187 5188 return 0; 5189 5190 error: 5191 pqi_free_all_io_requests(ctrl_info); 5192 5193 return -ENOMEM; 5194 } 5195 5196 /* 5197 * Calculate required resources that are sized based on max. outstanding 5198 * requests and max. transfer size. 5199 */ 5200 5201 static void pqi_calculate_io_resources(struct pqi_ctrl_info *ctrl_info) 5202 { 5203 u32 max_transfer_size; 5204 u32 max_sg_entries; 5205 5206 ctrl_info->scsi_ml_can_queue = 5207 ctrl_info->max_outstanding_requests - PQI_RESERVED_IO_SLOTS; 5208 ctrl_info->max_io_slots = ctrl_info->max_outstanding_requests; 5209 5210 ctrl_info->error_buffer_length = 5211 ctrl_info->max_io_slots * PQI_ERROR_BUFFER_ELEMENT_LENGTH; 5212 5213 if (reset_devices) 5214 max_transfer_size = min(ctrl_info->max_transfer_size, 5215 PQI_MAX_TRANSFER_SIZE_KDUMP); 5216 else 5217 max_transfer_size = min(ctrl_info->max_transfer_size, 5218 PQI_MAX_TRANSFER_SIZE); 5219 5220 max_sg_entries = max_transfer_size / PAGE_SIZE; 5221 5222 /* +1 to cover when the buffer is not page-aligned. */ 5223 max_sg_entries++; 5224 5225 max_sg_entries = min(ctrl_info->max_sg_entries, max_sg_entries); 5226 5227 max_transfer_size = (max_sg_entries - 1) * PAGE_SIZE; 5228 5229 ctrl_info->sg_chain_buffer_length = 5230 (max_sg_entries * sizeof(struct pqi_sg_descriptor)) + 5231 PQI_EXTRA_SGL_MEMORY; 5232 ctrl_info->sg_tablesize = max_sg_entries; 5233 ctrl_info->max_sectors = max_transfer_size / 512; 5234 } 5235 5236 static void pqi_calculate_queue_resources(struct pqi_ctrl_info *ctrl_info) 5237 { 5238 int num_queue_groups; 5239 u16 num_elements_per_iq; 5240 u16 num_elements_per_oq; 5241 5242 if (reset_devices) { 5243 num_queue_groups = 1; 5244 } else { 5245 int num_cpus; 5246 int max_queue_groups; 5247 5248 max_queue_groups = min(ctrl_info->max_inbound_queues / 2, 5249 ctrl_info->max_outbound_queues - 1); 5250 max_queue_groups = min(max_queue_groups, PQI_MAX_QUEUE_GROUPS); 5251 5252 num_cpus = num_online_cpus(); 5253 num_queue_groups = min(num_cpus, ctrl_info->max_msix_vectors); 5254 num_queue_groups = min(num_queue_groups, max_queue_groups); 5255 } 5256 5257 ctrl_info->num_queue_groups = num_queue_groups; 5258 5259 /* 5260 * Make sure that the max. inbound IU length is an even multiple 5261 * of our inbound element length. 5262 */ 5263 ctrl_info->max_inbound_iu_length = 5264 (ctrl_info->max_inbound_iu_length_per_firmware / 5265 PQI_OPERATIONAL_IQ_ELEMENT_LENGTH) * 5266 PQI_OPERATIONAL_IQ_ELEMENT_LENGTH; 5267 5268 num_elements_per_iq = 5269 (ctrl_info->max_inbound_iu_length / 5270 PQI_OPERATIONAL_IQ_ELEMENT_LENGTH); 5271 5272 /* Add one because one element in each queue is unusable. */ 5273 num_elements_per_iq++; 5274 5275 num_elements_per_iq = min(num_elements_per_iq, 5276 ctrl_info->max_elements_per_iq); 5277 5278 num_elements_per_oq = ((num_elements_per_iq - 1) * 2) + 1; 5279 num_elements_per_oq = min(num_elements_per_oq, 5280 ctrl_info->max_elements_per_oq); 5281 5282 ctrl_info->num_elements_per_iq = num_elements_per_iq; 5283 ctrl_info->num_elements_per_oq = num_elements_per_oq; 5284 5285 ctrl_info->max_sg_per_iu = 5286 ((ctrl_info->max_inbound_iu_length - 5287 PQI_OPERATIONAL_IQ_ELEMENT_LENGTH) / 5288 sizeof(struct pqi_sg_descriptor)) + 5289 PQI_MAX_EMBEDDED_SG_DESCRIPTORS; 5290 5291 ctrl_info->max_sg_per_r56_iu = 5292 ((ctrl_info->max_inbound_iu_length - 5293 PQI_OPERATIONAL_IQ_ELEMENT_LENGTH) / 5294 sizeof(struct pqi_sg_descriptor)) + 5295 PQI_MAX_EMBEDDED_R56_SG_DESCRIPTORS; 5296 } 5297 5298 static inline void pqi_set_sg_descriptor(struct pqi_sg_descriptor *sg_descriptor, 5299 struct scatterlist *sg) 5300 { 5301 u64 address = (u64)sg_dma_address(sg); 5302 unsigned int length = sg_dma_len(sg); 5303 5304 put_unaligned_le64(address, &sg_descriptor->address); 5305 put_unaligned_le32(length, &sg_descriptor->length); 5306 put_unaligned_le32(0, &sg_descriptor->flags); 5307 } 5308 5309 static unsigned int pqi_build_sg_list(struct pqi_sg_descriptor *sg_descriptor, 5310 struct scatterlist *sg, int sg_count, struct pqi_io_request *io_request, 5311 int max_sg_per_iu, bool *chained) 5312 { 5313 int i; 5314 unsigned int num_sg_in_iu; 5315 5316 *chained = false; 5317 i = 0; 5318 num_sg_in_iu = 0; 5319 max_sg_per_iu--; /* Subtract 1 to leave room for chain marker. */ 5320 5321 while (1) { 5322 pqi_set_sg_descriptor(sg_descriptor, sg); 5323 if (!*chained) 5324 num_sg_in_iu++; 5325 i++; 5326 if (i == sg_count) 5327 break; 5328 sg_descriptor++; 5329 if (i == max_sg_per_iu) { 5330 put_unaligned_le64((u64)io_request->sg_chain_buffer_dma_handle, 5331 &sg_descriptor->address); 5332 put_unaligned_le32((sg_count - num_sg_in_iu) * sizeof(*sg_descriptor), 5333 &sg_descriptor->length); 5334 put_unaligned_le32(CISS_SG_CHAIN, &sg_descriptor->flags); 5335 *chained = true; 5336 num_sg_in_iu++; 5337 sg_descriptor = io_request->sg_chain_buffer; 5338 } 5339 sg = sg_next(sg); 5340 } 5341 5342 put_unaligned_le32(CISS_SG_LAST, &sg_descriptor->flags); 5343 5344 return num_sg_in_iu; 5345 } 5346 5347 static int pqi_build_raid_sg_list(struct pqi_ctrl_info *ctrl_info, 5348 struct pqi_raid_path_request *request, struct scsi_cmnd *scmd, 5349 struct pqi_io_request *io_request) 5350 { 5351 u16 iu_length; 5352 int sg_count; 5353 bool chained; 5354 unsigned int num_sg_in_iu; 5355 struct scatterlist *sg; 5356 struct pqi_sg_descriptor *sg_descriptor; 5357 5358 sg_count = scsi_dma_map(scmd); 5359 if (sg_count < 0) 5360 return sg_count; 5361 5362 iu_length = offsetof(struct pqi_raid_path_request, sg_descriptors) - 5363 PQI_REQUEST_HEADER_LENGTH; 5364 5365 if (sg_count == 0) 5366 goto out; 5367 5368 sg = scsi_sglist(scmd); 5369 sg_descriptor = request->sg_descriptors; 5370 5371 num_sg_in_iu = pqi_build_sg_list(sg_descriptor, sg, sg_count, io_request, 5372 ctrl_info->max_sg_per_iu, &chained); 5373 5374 request->partial = chained; 5375 iu_length += num_sg_in_iu * sizeof(*sg_descriptor); 5376 5377 out: 5378 put_unaligned_le16(iu_length, &request->header.iu_length); 5379 5380 return 0; 5381 } 5382 5383 static int pqi_build_aio_r1_sg_list(struct pqi_ctrl_info *ctrl_info, 5384 struct pqi_aio_r1_path_request *request, struct scsi_cmnd *scmd, 5385 struct pqi_io_request *io_request) 5386 { 5387 u16 iu_length; 5388 int sg_count; 5389 bool chained; 5390 unsigned int num_sg_in_iu; 5391 struct scatterlist *sg; 5392 struct pqi_sg_descriptor *sg_descriptor; 5393 5394 sg_count = scsi_dma_map(scmd); 5395 if (sg_count < 0) 5396 return sg_count; 5397 5398 iu_length = offsetof(struct pqi_aio_r1_path_request, sg_descriptors) - 5399 PQI_REQUEST_HEADER_LENGTH; 5400 num_sg_in_iu = 0; 5401 5402 if (sg_count == 0) 5403 goto out; 5404 5405 sg = scsi_sglist(scmd); 5406 sg_descriptor = request->sg_descriptors; 5407 5408 num_sg_in_iu = pqi_build_sg_list(sg_descriptor, sg, sg_count, io_request, 5409 ctrl_info->max_sg_per_iu, &chained); 5410 5411 request->partial = chained; 5412 iu_length += num_sg_in_iu * sizeof(*sg_descriptor); 5413 5414 out: 5415 put_unaligned_le16(iu_length, &request->header.iu_length); 5416 request->num_sg_descriptors = num_sg_in_iu; 5417 5418 return 0; 5419 } 5420 5421 static int pqi_build_aio_r56_sg_list(struct pqi_ctrl_info *ctrl_info, 5422 struct pqi_aio_r56_path_request *request, struct scsi_cmnd *scmd, 5423 struct pqi_io_request *io_request) 5424 { 5425 u16 iu_length; 5426 int sg_count; 5427 bool chained; 5428 unsigned int num_sg_in_iu; 5429 struct scatterlist *sg; 5430 struct pqi_sg_descriptor *sg_descriptor; 5431 5432 sg_count = scsi_dma_map(scmd); 5433 if (sg_count < 0) 5434 return sg_count; 5435 5436 iu_length = offsetof(struct pqi_aio_r56_path_request, sg_descriptors) - 5437 PQI_REQUEST_HEADER_LENGTH; 5438 num_sg_in_iu = 0; 5439 5440 if (sg_count != 0) { 5441 sg = scsi_sglist(scmd); 5442 sg_descriptor = request->sg_descriptors; 5443 5444 num_sg_in_iu = pqi_build_sg_list(sg_descriptor, sg, sg_count, io_request, 5445 ctrl_info->max_sg_per_r56_iu, &chained); 5446 5447 request->partial = chained; 5448 iu_length += num_sg_in_iu * sizeof(*sg_descriptor); 5449 } 5450 5451 put_unaligned_le16(iu_length, &request->header.iu_length); 5452 request->num_sg_descriptors = num_sg_in_iu; 5453 5454 return 0; 5455 } 5456 5457 static int pqi_build_aio_sg_list(struct pqi_ctrl_info *ctrl_info, 5458 struct pqi_aio_path_request *request, struct scsi_cmnd *scmd, 5459 struct pqi_io_request *io_request) 5460 { 5461 u16 iu_length; 5462 int sg_count; 5463 bool chained; 5464 unsigned int num_sg_in_iu; 5465 struct scatterlist *sg; 5466 struct pqi_sg_descriptor *sg_descriptor; 5467 5468 sg_count = scsi_dma_map(scmd); 5469 if (sg_count < 0) 5470 return sg_count; 5471 5472 iu_length = offsetof(struct pqi_aio_path_request, sg_descriptors) - 5473 PQI_REQUEST_HEADER_LENGTH; 5474 num_sg_in_iu = 0; 5475 5476 if (sg_count == 0) 5477 goto out; 5478 5479 sg = scsi_sglist(scmd); 5480 sg_descriptor = request->sg_descriptors; 5481 5482 num_sg_in_iu = pqi_build_sg_list(sg_descriptor, sg, sg_count, io_request, 5483 ctrl_info->max_sg_per_iu, &chained); 5484 5485 request->partial = chained; 5486 iu_length += num_sg_in_iu * sizeof(*sg_descriptor); 5487 5488 out: 5489 put_unaligned_le16(iu_length, &request->header.iu_length); 5490 request->num_sg_descriptors = num_sg_in_iu; 5491 5492 return 0; 5493 } 5494 5495 static void pqi_raid_io_complete(struct pqi_io_request *io_request, 5496 void *context) 5497 { 5498 struct scsi_cmnd *scmd; 5499 5500 scmd = io_request->scmd; 5501 pqi_free_io_request(io_request); 5502 scsi_dma_unmap(scmd); 5503 pqi_scsi_done(scmd); 5504 } 5505 5506 static int pqi_raid_submit_scsi_cmd_with_io_request( 5507 struct pqi_ctrl_info *ctrl_info, struct pqi_io_request *io_request, 5508 struct pqi_scsi_dev *device, struct scsi_cmnd *scmd, 5509 struct pqi_queue_group *queue_group) 5510 { 5511 int rc; 5512 size_t cdb_length; 5513 struct pqi_raid_path_request *request; 5514 5515 io_request->io_complete_callback = pqi_raid_io_complete; 5516 io_request->scmd = scmd; 5517 5518 request = io_request->iu; 5519 memset(request, 0, offsetof(struct pqi_raid_path_request, sg_descriptors)); 5520 5521 request->header.iu_type = PQI_REQUEST_IU_RAID_PATH_IO; 5522 put_unaligned_le32(scsi_bufflen(scmd), &request->buffer_length); 5523 request->task_attribute = SOP_TASK_ATTRIBUTE_SIMPLE; 5524 put_unaligned_le16(io_request->index, &request->request_id); 5525 request->error_index = request->request_id; 5526 memcpy(request->lun_number, device->scsi3addr, sizeof(request->lun_number)); 5527 request->ml_device_lun_number = (u8)scmd->device->lun; 5528 5529 cdb_length = min_t(size_t, scmd->cmd_len, sizeof(request->cdb)); 5530 memcpy(request->cdb, scmd->cmnd, cdb_length); 5531 5532 switch (cdb_length) { 5533 case 6: 5534 case 10: 5535 case 12: 5536 case 16: 5537 request->additional_cdb_bytes_usage = SOP_ADDITIONAL_CDB_BYTES_0; 5538 break; 5539 case 20: 5540 request->additional_cdb_bytes_usage = SOP_ADDITIONAL_CDB_BYTES_4; 5541 break; 5542 case 24: 5543 request->additional_cdb_bytes_usage = SOP_ADDITIONAL_CDB_BYTES_8; 5544 break; 5545 case 28: 5546 request->additional_cdb_bytes_usage = SOP_ADDITIONAL_CDB_BYTES_12; 5547 break; 5548 case 32: 5549 default: 5550 request->additional_cdb_bytes_usage = SOP_ADDITIONAL_CDB_BYTES_16; 5551 break; 5552 } 5553 5554 switch (scmd->sc_data_direction) { 5555 case DMA_FROM_DEVICE: 5556 request->data_direction = SOP_READ_FLAG; 5557 break; 5558 case DMA_TO_DEVICE: 5559 request->data_direction = SOP_WRITE_FLAG; 5560 break; 5561 case DMA_NONE: 5562 request->data_direction = SOP_NO_DIRECTION_FLAG; 5563 break; 5564 case DMA_BIDIRECTIONAL: 5565 request->data_direction = SOP_BIDIRECTIONAL; 5566 break; 5567 default: 5568 dev_err(&ctrl_info->pci_dev->dev, 5569 "unknown data direction: %d\n", 5570 scmd->sc_data_direction); 5571 break; 5572 } 5573 5574 rc = pqi_build_raid_sg_list(ctrl_info, request, scmd, io_request); 5575 if (rc) { 5576 pqi_free_io_request(io_request); 5577 return SCSI_MLQUEUE_HOST_BUSY; 5578 } 5579 5580 pqi_start_io(ctrl_info, queue_group, RAID_PATH, io_request); 5581 5582 return 0; 5583 } 5584 5585 static inline int pqi_raid_submit_scsi_cmd(struct pqi_ctrl_info *ctrl_info, 5586 struct pqi_scsi_dev *device, struct scsi_cmnd *scmd, 5587 struct pqi_queue_group *queue_group) 5588 { 5589 struct pqi_io_request *io_request; 5590 5591 io_request = pqi_alloc_io_request(ctrl_info, scmd); 5592 if (!io_request) 5593 return SCSI_MLQUEUE_HOST_BUSY; 5594 5595 return pqi_raid_submit_scsi_cmd_with_io_request(ctrl_info, io_request, 5596 device, scmd, queue_group); 5597 } 5598 5599 static bool pqi_raid_bypass_retry_needed(struct pqi_io_request *io_request) 5600 { 5601 struct scsi_cmnd *scmd; 5602 struct pqi_scsi_dev *device; 5603 struct pqi_ctrl_info *ctrl_info; 5604 5605 if (!io_request->raid_bypass) 5606 return false; 5607 5608 scmd = io_request->scmd; 5609 if ((scmd->result & 0xff) == SAM_STAT_GOOD) 5610 return false; 5611 if (host_byte(scmd->result) == DID_NO_CONNECT) 5612 return false; 5613 5614 device = scmd->device->hostdata; 5615 if (pqi_device_offline(device) || pqi_device_in_remove(device)) 5616 return false; 5617 5618 ctrl_info = shost_to_hba(scmd->device->host); 5619 if (pqi_ctrl_offline(ctrl_info)) 5620 return false; 5621 5622 return true; 5623 } 5624 5625 static void pqi_aio_io_complete(struct pqi_io_request *io_request, 5626 void *context) 5627 { 5628 struct scsi_cmnd *scmd; 5629 5630 scmd = io_request->scmd; 5631 scsi_dma_unmap(scmd); 5632 if (io_request->status == -EAGAIN || pqi_raid_bypass_retry_needed(io_request)) { 5633 set_host_byte(scmd, DID_IMM_RETRY); 5634 pqi_cmd_priv(scmd)->this_residual++; 5635 } 5636 5637 pqi_free_io_request(io_request); 5638 pqi_scsi_done(scmd); 5639 } 5640 5641 static inline bool pqi_is_io_high_priority(struct pqi_ctrl_info *ctrl_info, 5642 struct pqi_scsi_dev *device, struct scsi_cmnd *scmd) 5643 { 5644 bool io_high_prio; 5645 int priority_class; 5646 5647 io_high_prio = false; 5648 5649 if (device->ncq_prio_enable) { 5650 priority_class = 5651 IOPRIO_PRIO_CLASS(req_get_ioprio(scsi_cmd_to_rq(scmd))); 5652 if (priority_class == IOPRIO_CLASS_RT) { 5653 /* Set NCQ priority for read/write commands. */ 5654 switch (scmd->cmnd[0]) { 5655 case WRITE_16: 5656 case READ_16: 5657 case WRITE_12: 5658 case READ_12: 5659 case WRITE_10: 5660 case READ_10: 5661 case WRITE_6: 5662 case READ_6: 5663 io_high_prio = true; 5664 break; 5665 } 5666 } 5667 } 5668 5669 return io_high_prio; 5670 } 5671 5672 static inline int pqi_aio_submit_scsi_cmd(struct pqi_ctrl_info *ctrl_info, 5673 struct pqi_scsi_dev *device, struct scsi_cmnd *scmd, 5674 struct pqi_queue_group *queue_group) 5675 { 5676 bool io_high_prio; 5677 5678 io_high_prio = pqi_is_io_high_priority(ctrl_info, device, scmd); 5679 5680 return pqi_aio_submit_io(ctrl_info, scmd, device->aio_handle, 5681 scmd->cmnd, scmd->cmd_len, queue_group, NULL, 5682 false, io_high_prio); 5683 } 5684 5685 static int pqi_aio_submit_io(struct pqi_ctrl_info *ctrl_info, 5686 struct scsi_cmnd *scmd, u32 aio_handle, u8 *cdb, 5687 unsigned int cdb_length, struct pqi_queue_group *queue_group, 5688 struct pqi_encryption_info *encryption_info, bool raid_bypass, 5689 bool io_high_prio) 5690 { 5691 int rc; 5692 struct pqi_io_request *io_request; 5693 struct pqi_aio_path_request *request; 5694 struct pqi_scsi_dev *device; 5695 5696 device = scmd->device->hostdata; 5697 io_request = pqi_alloc_io_request(ctrl_info, scmd); 5698 if (!io_request) 5699 return SCSI_MLQUEUE_HOST_BUSY; 5700 io_request->io_complete_callback = pqi_aio_io_complete; 5701 io_request->scmd = scmd; 5702 io_request->raid_bypass = raid_bypass; 5703 5704 request = io_request->iu; 5705 memset(request, 0, offsetof(struct pqi_aio_path_request, sg_descriptors)); 5706 5707 request->header.iu_type = PQI_REQUEST_IU_AIO_PATH_IO; 5708 put_unaligned_le32(aio_handle, &request->nexus_id); 5709 put_unaligned_le32(scsi_bufflen(scmd), &request->buffer_length); 5710 request->task_attribute = SOP_TASK_ATTRIBUTE_SIMPLE; 5711 request->command_priority = io_high_prio; 5712 put_unaligned_le16(io_request->index, &request->request_id); 5713 request->error_index = request->request_id; 5714 if (!pqi_is_logical_device(device) && ctrl_info->multi_lun_device_supported) 5715 put_unaligned_le64(((scmd->device->lun) << 8), &request->lun_number); 5716 if (cdb_length > sizeof(request->cdb)) 5717 cdb_length = sizeof(request->cdb); 5718 request->cdb_length = cdb_length; 5719 memcpy(request->cdb, cdb, cdb_length); 5720 5721 switch (scmd->sc_data_direction) { 5722 case DMA_TO_DEVICE: 5723 request->data_direction = SOP_READ_FLAG; 5724 break; 5725 case DMA_FROM_DEVICE: 5726 request->data_direction = SOP_WRITE_FLAG; 5727 break; 5728 case DMA_NONE: 5729 request->data_direction = SOP_NO_DIRECTION_FLAG; 5730 break; 5731 case DMA_BIDIRECTIONAL: 5732 request->data_direction = SOP_BIDIRECTIONAL; 5733 break; 5734 default: 5735 dev_err(&ctrl_info->pci_dev->dev, 5736 "unknown data direction: %d\n", 5737 scmd->sc_data_direction); 5738 break; 5739 } 5740 5741 if (encryption_info) { 5742 request->encryption_enable = true; 5743 put_unaligned_le16(encryption_info->data_encryption_key_index, 5744 &request->data_encryption_key_index); 5745 put_unaligned_le32(encryption_info->encrypt_tweak_lower, 5746 &request->encrypt_tweak_lower); 5747 put_unaligned_le32(encryption_info->encrypt_tweak_upper, 5748 &request->encrypt_tweak_upper); 5749 } 5750 5751 rc = pqi_build_aio_sg_list(ctrl_info, request, scmd, io_request); 5752 if (rc) { 5753 pqi_free_io_request(io_request); 5754 return SCSI_MLQUEUE_HOST_BUSY; 5755 } 5756 5757 pqi_start_io(ctrl_info, queue_group, AIO_PATH, io_request); 5758 5759 return 0; 5760 } 5761 5762 static int pqi_aio_submit_r1_write_io(struct pqi_ctrl_info *ctrl_info, 5763 struct scsi_cmnd *scmd, struct pqi_queue_group *queue_group, 5764 struct pqi_encryption_info *encryption_info, struct pqi_scsi_dev *device, 5765 struct pqi_scsi_dev_raid_map_data *rmd) 5766 { 5767 int rc; 5768 struct pqi_io_request *io_request; 5769 struct pqi_aio_r1_path_request *r1_request; 5770 5771 io_request = pqi_alloc_io_request(ctrl_info, scmd); 5772 if (!io_request) 5773 return SCSI_MLQUEUE_HOST_BUSY; 5774 5775 io_request->io_complete_callback = pqi_aio_io_complete; 5776 io_request->scmd = scmd; 5777 io_request->raid_bypass = true; 5778 5779 r1_request = io_request->iu; 5780 memset(r1_request, 0, offsetof(struct pqi_aio_r1_path_request, sg_descriptors)); 5781 5782 r1_request->header.iu_type = PQI_REQUEST_IU_AIO_PATH_RAID1_IO; 5783 put_unaligned_le16(*(u16 *)device->scsi3addr & 0x3fff, &r1_request->volume_id); 5784 r1_request->num_drives = rmd->num_it_nexus_entries; 5785 put_unaligned_le32(rmd->it_nexus[0], &r1_request->it_nexus_1); 5786 put_unaligned_le32(rmd->it_nexus[1], &r1_request->it_nexus_2); 5787 if (rmd->num_it_nexus_entries == 3) 5788 put_unaligned_le32(rmd->it_nexus[2], &r1_request->it_nexus_3); 5789 5790 put_unaligned_le32(scsi_bufflen(scmd), &r1_request->data_length); 5791 r1_request->task_attribute = SOP_TASK_ATTRIBUTE_SIMPLE; 5792 put_unaligned_le16(io_request->index, &r1_request->request_id); 5793 r1_request->error_index = r1_request->request_id; 5794 if (rmd->cdb_length > sizeof(r1_request->cdb)) 5795 rmd->cdb_length = sizeof(r1_request->cdb); 5796 r1_request->cdb_length = rmd->cdb_length; 5797 memcpy(r1_request->cdb, rmd->cdb, rmd->cdb_length); 5798 5799 /* The direction is always write. */ 5800 r1_request->data_direction = SOP_READ_FLAG; 5801 5802 if (encryption_info) { 5803 r1_request->encryption_enable = true; 5804 put_unaligned_le16(encryption_info->data_encryption_key_index, 5805 &r1_request->data_encryption_key_index); 5806 put_unaligned_le32(encryption_info->encrypt_tweak_lower, 5807 &r1_request->encrypt_tweak_lower); 5808 put_unaligned_le32(encryption_info->encrypt_tweak_upper, 5809 &r1_request->encrypt_tweak_upper); 5810 } 5811 5812 rc = pqi_build_aio_r1_sg_list(ctrl_info, r1_request, scmd, io_request); 5813 if (rc) { 5814 pqi_free_io_request(io_request); 5815 return SCSI_MLQUEUE_HOST_BUSY; 5816 } 5817 5818 pqi_start_io(ctrl_info, queue_group, AIO_PATH, io_request); 5819 5820 return 0; 5821 } 5822 5823 static int pqi_aio_submit_r56_write_io(struct pqi_ctrl_info *ctrl_info, 5824 struct scsi_cmnd *scmd, struct pqi_queue_group *queue_group, 5825 struct pqi_encryption_info *encryption_info, struct pqi_scsi_dev *device, 5826 struct pqi_scsi_dev_raid_map_data *rmd) 5827 { 5828 int rc; 5829 struct pqi_io_request *io_request; 5830 struct pqi_aio_r56_path_request *r56_request; 5831 5832 io_request = pqi_alloc_io_request(ctrl_info, scmd); 5833 if (!io_request) 5834 return SCSI_MLQUEUE_HOST_BUSY; 5835 io_request->io_complete_callback = pqi_aio_io_complete; 5836 io_request->scmd = scmd; 5837 io_request->raid_bypass = true; 5838 5839 r56_request = io_request->iu; 5840 memset(r56_request, 0, offsetof(struct pqi_aio_r56_path_request, sg_descriptors)); 5841 5842 if (device->raid_level == SA_RAID_5 || device->raid_level == SA_RAID_51) 5843 r56_request->header.iu_type = PQI_REQUEST_IU_AIO_PATH_RAID5_IO; 5844 else 5845 r56_request->header.iu_type = PQI_REQUEST_IU_AIO_PATH_RAID6_IO; 5846 5847 put_unaligned_le16(*(u16 *)device->scsi3addr & 0x3fff, &r56_request->volume_id); 5848 put_unaligned_le32(rmd->aio_handle, &r56_request->data_it_nexus); 5849 put_unaligned_le32(rmd->p_parity_it_nexus, &r56_request->p_parity_it_nexus); 5850 if (rmd->raid_level == SA_RAID_6) { 5851 put_unaligned_le32(rmd->q_parity_it_nexus, &r56_request->q_parity_it_nexus); 5852 r56_request->xor_multiplier = rmd->xor_mult; 5853 } 5854 put_unaligned_le32(scsi_bufflen(scmd), &r56_request->data_length); 5855 r56_request->task_attribute = SOP_TASK_ATTRIBUTE_SIMPLE; 5856 put_unaligned_le64(rmd->row, &r56_request->row); 5857 5858 put_unaligned_le16(io_request->index, &r56_request->request_id); 5859 r56_request->error_index = r56_request->request_id; 5860 5861 if (rmd->cdb_length > sizeof(r56_request->cdb)) 5862 rmd->cdb_length = sizeof(r56_request->cdb); 5863 r56_request->cdb_length = rmd->cdb_length; 5864 memcpy(r56_request->cdb, rmd->cdb, rmd->cdb_length); 5865 5866 /* The direction is always write. */ 5867 r56_request->data_direction = SOP_READ_FLAG; 5868 5869 if (encryption_info) { 5870 r56_request->encryption_enable = true; 5871 put_unaligned_le16(encryption_info->data_encryption_key_index, 5872 &r56_request->data_encryption_key_index); 5873 put_unaligned_le32(encryption_info->encrypt_tweak_lower, 5874 &r56_request->encrypt_tweak_lower); 5875 put_unaligned_le32(encryption_info->encrypt_tweak_upper, 5876 &r56_request->encrypt_tweak_upper); 5877 } 5878 5879 rc = pqi_build_aio_r56_sg_list(ctrl_info, r56_request, scmd, io_request); 5880 if (rc) { 5881 pqi_free_io_request(io_request); 5882 return SCSI_MLQUEUE_HOST_BUSY; 5883 } 5884 5885 pqi_start_io(ctrl_info, queue_group, AIO_PATH, io_request); 5886 5887 return 0; 5888 } 5889 5890 static inline u16 pqi_get_hw_queue(struct pqi_ctrl_info *ctrl_info, 5891 struct scsi_cmnd *scmd) 5892 { 5893 /* 5894 * We are setting host_tagset = 1 during init. 5895 */ 5896 return blk_mq_unique_tag_to_hwq(blk_mq_unique_tag(scsi_cmd_to_rq(scmd))); 5897 } 5898 5899 static inline bool pqi_is_bypass_eligible_request(struct scsi_cmnd *scmd) 5900 { 5901 if (blk_rq_is_passthrough(scsi_cmd_to_rq(scmd))) 5902 return false; 5903 5904 return pqi_cmd_priv(scmd)->this_residual == 0; 5905 } 5906 5907 /* 5908 * This function gets called just before we hand the completed SCSI request 5909 * back to the SML. 5910 */ 5911 5912 void pqi_prep_for_scsi_done(struct scsi_cmnd *scmd) 5913 { 5914 struct pqi_scsi_dev *device; 5915 5916 if (!scmd->device) { 5917 set_host_byte(scmd, DID_NO_CONNECT); 5918 return; 5919 } 5920 5921 device = scmd->device->hostdata; 5922 if (!device) { 5923 set_host_byte(scmd, DID_NO_CONNECT); 5924 return; 5925 } 5926 5927 atomic_dec(&device->scsi_cmds_outstanding[scmd->device->lun]); 5928 } 5929 5930 static bool pqi_is_parity_write_stream(struct pqi_ctrl_info *ctrl_info, 5931 struct scsi_cmnd *scmd) 5932 { 5933 u32 oldest_jiffies; 5934 u8 lru_index; 5935 int i; 5936 int rc; 5937 struct pqi_scsi_dev *device; 5938 struct pqi_stream_data *pqi_stream_data; 5939 struct pqi_scsi_dev_raid_map_data rmd; 5940 5941 if (!ctrl_info->enable_stream_detection) 5942 return false; 5943 5944 rc = pqi_get_aio_lba_and_block_count(scmd, &rmd); 5945 if (rc) 5946 return false; 5947 5948 /* Check writes only. */ 5949 if (!rmd.is_write) 5950 return false; 5951 5952 device = scmd->device->hostdata; 5953 5954 /* Check for RAID 5/6 streams. */ 5955 if (device->raid_level != SA_RAID_5 && device->raid_level != SA_RAID_6) 5956 return false; 5957 5958 /* 5959 * If controller does not support AIO RAID{5,6} writes, need to send 5960 * requests down non-AIO path. 5961 */ 5962 if ((device->raid_level == SA_RAID_5 && !ctrl_info->enable_r5_writes) || 5963 (device->raid_level == SA_RAID_6 && !ctrl_info->enable_r6_writes)) 5964 return true; 5965 5966 lru_index = 0; 5967 oldest_jiffies = INT_MAX; 5968 for (i = 0; i < NUM_STREAMS_PER_LUN; i++) { 5969 pqi_stream_data = &device->stream_data[i]; 5970 /* 5971 * Check for adjacent request or request is within 5972 * the previous request. 5973 */ 5974 if ((pqi_stream_data->next_lba && 5975 rmd.first_block >= pqi_stream_data->next_lba) && 5976 rmd.first_block <= pqi_stream_data->next_lba + 5977 rmd.block_cnt) { 5978 pqi_stream_data->next_lba = rmd.first_block + 5979 rmd.block_cnt; 5980 pqi_stream_data->last_accessed = jiffies; 5981 return true; 5982 } 5983 5984 /* unused entry */ 5985 if (pqi_stream_data->last_accessed == 0) { 5986 lru_index = i; 5987 break; 5988 } 5989 5990 /* Find entry with oldest last accessed time. */ 5991 if (pqi_stream_data->last_accessed <= oldest_jiffies) { 5992 oldest_jiffies = pqi_stream_data->last_accessed; 5993 lru_index = i; 5994 } 5995 } 5996 5997 /* Set LRU entry. */ 5998 pqi_stream_data = &device->stream_data[lru_index]; 5999 pqi_stream_data->last_accessed = jiffies; 6000 pqi_stream_data->next_lba = rmd.first_block + rmd.block_cnt; 6001 6002 return false; 6003 } 6004 6005 static int pqi_scsi_queue_command(struct Scsi_Host *shost, struct scsi_cmnd *scmd) 6006 { 6007 int rc; 6008 struct pqi_ctrl_info *ctrl_info; 6009 struct pqi_scsi_dev *device; 6010 u16 hw_queue; 6011 struct pqi_queue_group *queue_group; 6012 bool raid_bypassed; 6013 6014 device = scmd->device->hostdata; 6015 6016 if (!device) { 6017 set_host_byte(scmd, DID_NO_CONNECT); 6018 pqi_scsi_done(scmd); 6019 return 0; 6020 } 6021 6022 atomic_inc(&device->scsi_cmds_outstanding[scmd->device->lun]); 6023 6024 ctrl_info = shost_to_hba(shost); 6025 6026 if (pqi_ctrl_offline(ctrl_info) || pqi_device_in_remove(device)) { 6027 set_host_byte(scmd, DID_NO_CONNECT); 6028 pqi_scsi_done(scmd); 6029 return 0; 6030 } 6031 6032 if (pqi_ctrl_blocked(ctrl_info)) { 6033 rc = SCSI_MLQUEUE_HOST_BUSY; 6034 goto out; 6035 } 6036 6037 /* 6038 * This is necessary because the SML doesn't zero out this field during 6039 * error recovery. 6040 */ 6041 scmd->result = 0; 6042 6043 hw_queue = pqi_get_hw_queue(ctrl_info, scmd); 6044 queue_group = &ctrl_info->queue_groups[hw_queue]; 6045 6046 if (pqi_is_logical_device(device)) { 6047 raid_bypassed = false; 6048 if (device->raid_bypass_enabled && 6049 pqi_is_bypass_eligible_request(scmd) && 6050 !pqi_is_parity_write_stream(ctrl_info, scmd)) { 6051 rc = pqi_raid_bypass_submit_scsi_cmd(ctrl_info, device, scmd, queue_group); 6052 if (rc == 0 || rc == SCSI_MLQUEUE_HOST_BUSY) { 6053 raid_bypassed = true; 6054 atomic_inc(&device->raid_bypass_cnt); 6055 } 6056 } 6057 if (!raid_bypassed) 6058 rc = pqi_raid_submit_scsi_cmd(ctrl_info, device, scmd, queue_group); 6059 } else { 6060 if (device->aio_enabled) 6061 rc = pqi_aio_submit_scsi_cmd(ctrl_info, device, scmd, queue_group); 6062 else 6063 rc = pqi_raid_submit_scsi_cmd(ctrl_info, device, scmd, queue_group); 6064 } 6065 6066 out: 6067 if (rc) 6068 atomic_dec(&device->scsi_cmds_outstanding[scmd->device->lun]); 6069 6070 return rc; 6071 } 6072 6073 static unsigned int pqi_queued_io_count(struct pqi_ctrl_info *ctrl_info) 6074 { 6075 unsigned int i; 6076 unsigned int path; 6077 unsigned long flags; 6078 unsigned int queued_io_count; 6079 struct pqi_queue_group *queue_group; 6080 struct pqi_io_request *io_request; 6081 6082 queued_io_count = 0; 6083 6084 for (i = 0; i < ctrl_info->num_queue_groups; i++) { 6085 queue_group = &ctrl_info->queue_groups[i]; 6086 for (path = 0; path < 2; path++) { 6087 spin_lock_irqsave(&queue_group->submit_lock[path], flags); 6088 list_for_each_entry(io_request, &queue_group->request_list[path], request_list_entry) 6089 queued_io_count++; 6090 spin_unlock_irqrestore(&queue_group->submit_lock[path], flags); 6091 } 6092 } 6093 6094 return queued_io_count; 6095 } 6096 6097 static unsigned int pqi_nonempty_inbound_queue_count(struct pqi_ctrl_info *ctrl_info) 6098 { 6099 unsigned int i; 6100 unsigned int path; 6101 unsigned int nonempty_inbound_queue_count; 6102 struct pqi_queue_group *queue_group; 6103 pqi_index_t iq_pi; 6104 pqi_index_t iq_ci; 6105 6106 nonempty_inbound_queue_count = 0; 6107 6108 for (i = 0; i < ctrl_info->num_queue_groups; i++) { 6109 queue_group = &ctrl_info->queue_groups[i]; 6110 for (path = 0; path < 2; path++) { 6111 iq_pi = queue_group->iq_pi_copy[path]; 6112 iq_ci = readl(queue_group->iq_ci[path]); 6113 if (iq_ci != iq_pi) 6114 nonempty_inbound_queue_count++; 6115 } 6116 } 6117 6118 return nonempty_inbound_queue_count; 6119 } 6120 6121 #define PQI_INBOUND_QUEUES_NONEMPTY_WARNING_TIMEOUT_SECS 10 6122 6123 static int pqi_wait_until_inbound_queues_empty(struct pqi_ctrl_info *ctrl_info) 6124 { 6125 unsigned long start_jiffies; 6126 unsigned long warning_timeout; 6127 unsigned int queued_io_count; 6128 unsigned int nonempty_inbound_queue_count; 6129 bool displayed_warning; 6130 6131 displayed_warning = false; 6132 start_jiffies = jiffies; 6133 warning_timeout = (PQI_INBOUND_QUEUES_NONEMPTY_WARNING_TIMEOUT_SECS * HZ) + start_jiffies; 6134 6135 while (1) { 6136 queued_io_count = pqi_queued_io_count(ctrl_info); 6137 nonempty_inbound_queue_count = pqi_nonempty_inbound_queue_count(ctrl_info); 6138 if (queued_io_count == 0 && nonempty_inbound_queue_count == 0) 6139 break; 6140 pqi_check_ctrl_health(ctrl_info); 6141 if (pqi_ctrl_offline(ctrl_info)) 6142 return -ENXIO; 6143 if (time_after(jiffies, warning_timeout)) { 6144 dev_warn(&ctrl_info->pci_dev->dev, 6145 "waiting %u seconds for queued I/O to drain (queued I/O count: %u; non-empty inbound queue count: %u)\n", 6146 jiffies_to_msecs(jiffies - start_jiffies) / 1000, queued_io_count, nonempty_inbound_queue_count); 6147 displayed_warning = true; 6148 warning_timeout = (PQI_INBOUND_QUEUES_NONEMPTY_WARNING_TIMEOUT_SECS * HZ) + jiffies; 6149 } 6150 usleep_range(1000, 2000); 6151 } 6152 6153 if (displayed_warning) 6154 dev_warn(&ctrl_info->pci_dev->dev, 6155 "queued I/O drained after waiting for %u seconds\n", 6156 jiffies_to_msecs(jiffies - start_jiffies) / 1000); 6157 6158 return 0; 6159 } 6160 6161 static void pqi_fail_io_queued_for_device(struct pqi_ctrl_info *ctrl_info, 6162 struct pqi_scsi_dev *device) 6163 { 6164 unsigned int i; 6165 unsigned int path; 6166 struct pqi_queue_group *queue_group; 6167 unsigned long flags; 6168 struct pqi_io_request *io_request; 6169 struct pqi_io_request *next; 6170 struct scsi_cmnd *scmd; 6171 struct pqi_scsi_dev *scsi_device; 6172 6173 for (i = 0; i < ctrl_info->num_queue_groups; i++) { 6174 queue_group = &ctrl_info->queue_groups[i]; 6175 6176 for (path = 0; path < 2; path++) { 6177 spin_lock_irqsave( 6178 &queue_group->submit_lock[path], flags); 6179 6180 list_for_each_entry_safe(io_request, next, 6181 &queue_group->request_list[path], 6182 request_list_entry) { 6183 6184 scmd = io_request->scmd; 6185 if (!scmd) 6186 continue; 6187 6188 scsi_device = scmd->device->hostdata; 6189 if (scsi_device != device) 6190 continue; 6191 6192 list_del(&io_request->request_list_entry); 6193 set_host_byte(scmd, DID_RESET); 6194 pqi_free_io_request(io_request); 6195 scsi_dma_unmap(scmd); 6196 pqi_scsi_done(scmd); 6197 } 6198 6199 spin_unlock_irqrestore( 6200 &queue_group->submit_lock[path], flags); 6201 } 6202 } 6203 } 6204 6205 #define PQI_PENDING_IO_WARNING_TIMEOUT_SECS 10 6206 6207 static int pqi_device_wait_for_pending_io(struct pqi_ctrl_info *ctrl_info, 6208 struct pqi_scsi_dev *device, u8 lun, unsigned long timeout_msecs) 6209 { 6210 int cmds_outstanding; 6211 unsigned long start_jiffies; 6212 unsigned long warning_timeout; 6213 unsigned long msecs_waiting; 6214 6215 start_jiffies = jiffies; 6216 warning_timeout = (PQI_PENDING_IO_WARNING_TIMEOUT_SECS * HZ) + start_jiffies; 6217 6218 while ((cmds_outstanding = atomic_read(&device->scsi_cmds_outstanding[lun])) > 0) { 6219 if (ctrl_info->ctrl_removal_state != PQI_CTRL_GRACEFUL_REMOVAL) { 6220 pqi_check_ctrl_health(ctrl_info); 6221 if (pqi_ctrl_offline(ctrl_info)) 6222 return -ENXIO; 6223 } 6224 msecs_waiting = jiffies_to_msecs(jiffies - start_jiffies); 6225 if (msecs_waiting >= timeout_msecs) { 6226 dev_err(&ctrl_info->pci_dev->dev, 6227 "scsi %d:%d:%d:%d: timed out after %lu seconds waiting for %d outstanding command(s)\n", 6228 ctrl_info->scsi_host->host_no, device->bus, device->target, 6229 lun, msecs_waiting / 1000, cmds_outstanding); 6230 return -ETIMEDOUT; 6231 } 6232 if (time_after(jiffies, warning_timeout)) { 6233 dev_warn(&ctrl_info->pci_dev->dev, 6234 "scsi %d:%d:%d:%d: waiting %lu seconds for %d outstanding command(s)\n", 6235 ctrl_info->scsi_host->host_no, device->bus, device->target, 6236 lun, msecs_waiting / 1000, cmds_outstanding); 6237 warning_timeout = (PQI_PENDING_IO_WARNING_TIMEOUT_SECS * HZ) + jiffies; 6238 } 6239 usleep_range(1000, 2000); 6240 } 6241 6242 return 0; 6243 } 6244 6245 static void pqi_lun_reset_complete(struct pqi_io_request *io_request, 6246 void *context) 6247 { 6248 struct completion *waiting = context; 6249 6250 complete(waiting); 6251 } 6252 6253 #define PQI_LUN_RESET_POLL_COMPLETION_SECS 10 6254 6255 static int pqi_wait_for_lun_reset_completion(struct pqi_ctrl_info *ctrl_info, 6256 struct pqi_scsi_dev *device, u8 lun, struct completion *wait) 6257 { 6258 int rc; 6259 unsigned int wait_secs; 6260 int cmds_outstanding; 6261 6262 wait_secs = 0; 6263 6264 while (1) { 6265 if (wait_for_completion_io_timeout(wait, 6266 PQI_LUN_RESET_POLL_COMPLETION_SECS * HZ)) { 6267 rc = 0; 6268 break; 6269 } 6270 6271 pqi_check_ctrl_health(ctrl_info); 6272 if (pqi_ctrl_offline(ctrl_info)) { 6273 rc = -ENXIO; 6274 break; 6275 } 6276 6277 wait_secs += PQI_LUN_RESET_POLL_COMPLETION_SECS; 6278 cmds_outstanding = atomic_read(&device->scsi_cmds_outstanding[lun]); 6279 dev_warn(&ctrl_info->pci_dev->dev, 6280 "scsi %d:%d:%d:%d: waiting %u seconds for LUN reset to complete (%d command(s) outstanding)\n", 6281 ctrl_info->scsi_host->host_no, device->bus, device->target, lun, wait_secs, cmds_outstanding); 6282 } 6283 6284 return rc; 6285 } 6286 6287 #define PQI_LUN_RESET_FIRMWARE_TIMEOUT_SECS 30 6288 6289 static int pqi_lun_reset(struct pqi_ctrl_info *ctrl_info, struct scsi_cmnd *scmd) 6290 { 6291 int rc; 6292 struct pqi_io_request *io_request; 6293 DECLARE_COMPLETION_ONSTACK(wait); 6294 struct pqi_task_management_request *request; 6295 struct pqi_scsi_dev *device; 6296 6297 device = scmd->device->hostdata; 6298 io_request = pqi_alloc_io_request(ctrl_info, NULL); 6299 io_request->io_complete_callback = pqi_lun_reset_complete; 6300 io_request->context = &wait; 6301 6302 request = io_request->iu; 6303 memset(request, 0, sizeof(*request)); 6304 6305 request->header.iu_type = PQI_REQUEST_IU_TASK_MANAGEMENT; 6306 put_unaligned_le16(sizeof(*request) - PQI_REQUEST_HEADER_LENGTH, 6307 &request->header.iu_length); 6308 put_unaligned_le16(io_request->index, &request->request_id); 6309 memcpy(request->lun_number, device->scsi3addr, 6310 sizeof(request->lun_number)); 6311 if (!pqi_is_logical_device(device) && ctrl_info->multi_lun_device_supported) 6312 request->ml_device_lun_number = (u8)scmd->device->lun; 6313 request->task_management_function = SOP_TASK_MANAGEMENT_LUN_RESET; 6314 if (ctrl_info->tmf_iu_timeout_supported) 6315 put_unaligned_le16(PQI_LUN_RESET_FIRMWARE_TIMEOUT_SECS, &request->timeout); 6316 6317 pqi_start_io(ctrl_info, &ctrl_info->queue_groups[PQI_DEFAULT_QUEUE_GROUP], RAID_PATH, 6318 io_request); 6319 6320 rc = pqi_wait_for_lun_reset_completion(ctrl_info, device, (u8)scmd->device->lun, &wait); 6321 if (rc == 0) 6322 rc = io_request->status; 6323 6324 pqi_free_io_request(io_request); 6325 6326 return rc; 6327 } 6328 6329 #define PQI_LUN_RESET_RETRIES 3 6330 #define PQI_LUN_RESET_RETRY_INTERVAL_MSECS (10 * 1000) 6331 #define PQI_LUN_RESET_PENDING_IO_TIMEOUT_MSECS (10 * 60 * 1000) 6332 #define PQI_LUN_RESET_FAILED_PENDING_IO_TIMEOUT_MSECS (2 * 60 * 1000) 6333 6334 static int pqi_lun_reset_with_retries(struct pqi_ctrl_info *ctrl_info, struct scsi_cmnd *scmd) 6335 { 6336 int reset_rc; 6337 int wait_rc; 6338 unsigned int retries; 6339 unsigned long timeout_msecs; 6340 struct pqi_scsi_dev *device; 6341 6342 device = scmd->device->hostdata; 6343 for (retries = 0;;) { 6344 reset_rc = pqi_lun_reset(ctrl_info, scmd); 6345 if (reset_rc == 0 || reset_rc == -ENODEV || ++retries > PQI_LUN_RESET_RETRIES) 6346 break; 6347 msleep(PQI_LUN_RESET_RETRY_INTERVAL_MSECS); 6348 } 6349 6350 timeout_msecs = reset_rc ? PQI_LUN_RESET_FAILED_PENDING_IO_TIMEOUT_MSECS : 6351 PQI_LUN_RESET_PENDING_IO_TIMEOUT_MSECS; 6352 6353 wait_rc = pqi_device_wait_for_pending_io(ctrl_info, device, scmd->device->lun, timeout_msecs); 6354 if (wait_rc && reset_rc == 0) 6355 reset_rc = wait_rc; 6356 6357 return reset_rc == 0 ? SUCCESS : FAILED; 6358 } 6359 6360 static int pqi_device_reset(struct pqi_ctrl_info *ctrl_info, struct scsi_cmnd *scmd) 6361 { 6362 int rc; 6363 struct pqi_scsi_dev *device; 6364 6365 device = scmd->device->hostdata; 6366 pqi_ctrl_block_requests(ctrl_info); 6367 pqi_ctrl_wait_until_quiesced(ctrl_info); 6368 pqi_fail_io_queued_for_device(ctrl_info, device); 6369 rc = pqi_wait_until_inbound_queues_empty(ctrl_info); 6370 if (rc) 6371 rc = FAILED; 6372 else 6373 rc = pqi_lun_reset_with_retries(ctrl_info, scmd); 6374 pqi_ctrl_unblock_requests(ctrl_info); 6375 6376 return rc; 6377 } 6378 6379 static int pqi_eh_device_reset_handler(struct scsi_cmnd *scmd) 6380 { 6381 int rc; 6382 struct Scsi_Host *shost; 6383 struct pqi_ctrl_info *ctrl_info; 6384 struct pqi_scsi_dev *device; 6385 6386 shost = scmd->device->host; 6387 ctrl_info = shost_to_hba(shost); 6388 device = scmd->device->hostdata; 6389 6390 mutex_lock(&ctrl_info->lun_reset_mutex); 6391 6392 dev_err(&ctrl_info->pci_dev->dev, 6393 "resetting scsi %d:%d:%d:%d due to cmd 0x%02x\n", 6394 shost->host_no, 6395 device->bus, device->target, (u32)scmd->device->lun, 6396 scmd->cmd_len > 0 ? scmd->cmnd[0] : 0xff); 6397 6398 pqi_check_ctrl_health(ctrl_info); 6399 if (pqi_ctrl_offline(ctrl_info)) 6400 rc = FAILED; 6401 else 6402 rc = pqi_device_reset(ctrl_info, scmd); 6403 6404 dev_err(&ctrl_info->pci_dev->dev, 6405 "reset of scsi %d:%d:%d:%d: %s\n", 6406 shost->host_no, device->bus, device->target, (u32)scmd->device->lun, 6407 rc == SUCCESS ? "SUCCESS" : "FAILED"); 6408 6409 mutex_unlock(&ctrl_info->lun_reset_mutex); 6410 6411 return rc; 6412 } 6413 6414 static int pqi_slave_alloc(struct scsi_device *sdev) 6415 { 6416 struct pqi_scsi_dev *device; 6417 unsigned long flags; 6418 struct pqi_ctrl_info *ctrl_info; 6419 struct scsi_target *starget; 6420 struct sas_rphy *rphy; 6421 6422 ctrl_info = shost_to_hba(sdev->host); 6423 6424 spin_lock_irqsave(&ctrl_info->scsi_device_list_lock, flags); 6425 6426 if (sdev_channel(sdev) == PQI_PHYSICAL_DEVICE_BUS) { 6427 starget = scsi_target(sdev); 6428 rphy = target_to_rphy(starget); 6429 device = pqi_find_device_by_sas_rphy(ctrl_info, rphy); 6430 if (device) { 6431 if (device->target_lun_valid) { 6432 device->ignore_device = true; 6433 } else { 6434 device->target = sdev_id(sdev); 6435 device->lun = sdev->lun; 6436 device->target_lun_valid = true; 6437 } 6438 } 6439 } else { 6440 device = pqi_find_scsi_dev(ctrl_info, sdev_channel(sdev), 6441 sdev_id(sdev), sdev->lun); 6442 } 6443 6444 if (device) { 6445 sdev->hostdata = device; 6446 device->sdev = sdev; 6447 if (device->queue_depth) { 6448 device->advertised_queue_depth = device->queue_depth; 6449 scsi_change_queue_depth(sdev, 6450 device->advertised_queue_depth); 6451 } 6452 if (pqi_is_logical_device(device)) { 6453 pqi_disable_write_same(sdev); 6454 } else { 6455 sdev->allow_restart = 1; 6456 if (device->device_type == SA_DEVICE_TYPE_NVME) 6457 pqi_disable_write_same(sdev); 6458 } 6459 } 6460 6461 spin_unlock_irqrestore(&ctrl_info->scsi_device_list_lock, flags); 6462 6463 return 0; 6464 } 6465 6466 static void pqi_map_queues(struct Scsi_Host *shost) 6467 { 6468 struct pqi_ctrl_info *ctrl_info = shost_to_hba(shost); 6469 6470 blk_mq_pci_map_queues(&shost->tag_set.map[HCTX_TYPE_DEFAULT], 6471 ctrl_info->pci_dev, 0); 6472 } 6473 6474 static inline bool pqi_is_tape_changer_device(struct pqi_scsi_dev *device) 6475 { 6476 return device->devtype == TYPE_TAPE || device->devtype == TYPE_MEDIUM_CHANGER; 6477 } 6478 6479 static int pqi_slave_configure(struct scsi_device *sdev) 6480 { 6481 int rc = 0; 6482 struct pqi_scsi_dev *device; 6483 6484 device = sdev->hostdata; 6485 device->devtype = sdev->type; 6486 6487 if (pqi_is_tape_changer_device(device) && device->ignore_device) { 6488 rc = -ENXIO; 6489 device->ignore_device = false; 6490 } 6491 6492 return rc; 6493 } 6494 6495 static void pqi_slave_destroy(struct scsi_device *sdev) 6496 { 6497 struct pqi_ctrl_info *ctrl_info; 6498 struct pqi_scsi_dev *device; 6499 int mutex_acquired; 6500 unsigned long flags; 6501 6502 ctrl_info = shost_to_hba(sdev->host); 6503 6504 mutex_acquired = mutex_trylock(&ctrl_info->scan_mutex); 6505 if (!mutex_acquired) 6506 return; 6507 6508 device = sdev->hostdata; 6509 if (!device) { 6510 mutex_unlock(&ctrl_info->scan_mutex); 6511 return; 6512 } 6513 6514 device->lun_count--; 6515 if (device->lun_count > 0) { 6516 mutex_unlock(&ctrl_info->scan_mutex); 6517 return; 6518 } 6519 6520 spin_lock_irqsave(&ctrl_info->scsi_device_list_lock, flags); 6521 list_del(&device->scsi_device_list_entry); 6522 spin_unlock_irqrestore(&ctrl_info->scsi_device_list_lock, flags); 6523 6524 mutex_unlock(&ctrl_info->scan_mutex); 6525 6526 pqi_dev_info(ctrl_info, "removed", device); 6527 pqi_free_device(device); 6528 } 6529 6530 static int pqi_getpciinfo_ioctl(struct pqi_ctrl_info *ctrl_info, void __user *arg) 6531 { 6532 struct pci_dev *pci_dev; 6533 u32 subsystem_vendor; 6534 u32 subsystem_device; 6535 cciss_pci_info_struct pciinfo; 6536 6537 if (!arg) 6538 return -EINVAL; 6539 6540 pci_dev = ctrl_info->pci_dev; 6541 6542 pciinfo.domain = pci_domain_nr(pci_dev->bus); 6543 pciinfo.bus = pci_dev->bus->number; 6544 pciinfo.dev_fn = pci_dev->devfn; 6545 subsystem_vendor = pci_dev->subsystem_vendor; 6546 subsystem_device = pci_dev->subsystem_device; 6547 pciinfo.board_id = ((subsystem_device << 16) & 0xffff0000) | subsystem_vendor; 6548 6549 if (copy_to_user(arg, &pciinfo, sizeof(pciinfo))) 6550 return -EFAULT; 6551 6552 return 0; 6553 } 6554 6555 static int pqi_getdrivver_ioctl(void __user *arg) 6556 { 6557 u32 version; 6558 6559 if (!arg) 6560 return -EINVAL; 6561 6562 version = (DRIVER_MAJOR << 28) | (DRIVER_MINOR << 24) | 6563 (DRIVER_RELEASE << 16) | DRIVER_REVISION; 6564 6565 if (copy_to_user(arg, &version, sizeof(version))) 6566 return -EFAULT; 6567 6568 return 0; 6569 } 6570 6571 struct ciss_error_info { 6572 u8 scsi_status; 6573 int command_status; 6574 size_t sense_data_length; 6575 }; 6576 6577 static void pqi_error_info_to_ciss(struct pqi_raid_error_info *pqi_error_info, 6578 struct ciss_error_info *ciss_error_info) 6579 { 6580 int ciss_cmd_status; 6581 size_t sense_data_length; 6582 6583 switch (pqi_error_info->data_out_result) { 6584 case PQI_DATA_IN_OUT_GOOD: 6585 ciss_cmd_status = CISS_CMD_STATUS_SUCCESS; 6586 break; 6587 case PQI_DATA_IN_OUT_UNDERFLOW: 6588 ciss_cmd_status = CISS_CMD_STATUS_DATA_UNDERRUN; 6589 break; 6590 case PQI_DATA_IN_OUT_BUFFER_OVERFLOW: 6591 ciss_cmd_status = CISS_CMD_STATUS_DATA_OVERRUN; 6592 break; 6593 case PQI_DATA_IN_OUT_PROTOCOL_ERROR: 6594 case PQI_DATA_IN_OUT_BUFFER_ERROR: 6595 case PQI_DATA_IN_OUT_BUFFER_OVERFLOW_DESCRIPTOR_AREA: 6596 case PQI_DATA_IN_OUT_BUFFER_OVERFLOW_BRIDGE: 6597 case PQI_DATA_IN_OUT_ERROR: 6598 ciss_cmd_status = CISS_CMD_STATUS_PROTOCOL_ERROR; 6599 break; 6600 case PQI_DATA_IN_OUT_HARDWARE_ERROR: 6601 case PQI_DATA_IN_OUT_PCIE_FABRIC_ERROR: 6602 case PQI_DATA_IN_OUT_PCIE_COMPLETION_TIMEOUT: 6603 case PQI_DATA_IN_OUT_PCIE_COMPLETER_ABORT_RECEIVED: 6604 case PQI_DATA_IN_OUT_PCIE_UNSUPPORTED_REQUEST_RECEIVED: 6605 case PQI_DATA_IN_OUT_PCIE_ECRC_CHECK_FAILED: 6606 case PQI_DATA_IN_OUT_PCIE_UNSUPPORTED_REQUEST: 6607 case PQI_DATA_IN_OUT_PCIE_ACS_VIOLATION: 6608 case PQI_DATA_IN_OUT_PCIE_TLP_PREFIX_BLOCKED: 6609 case PQI_DATA_IN_OUT_PCIE_POISONED_MEMORY_READ: 6610 ciss_cmd_status = CISS_CMD_STATUS_HARDWARE_ERROR; 6611 break; 6612 case PQI_DATA_IN_OUT_UNSOLICITED_ABORT: 6613 ciss_cmd_status = CISS_CMD_STATUS_UNSOLICITED_ABORT; 6614 break; 6615 case PQI_DATA_IN_OUT_ABORTED: 6616 ciss_cmd_status = CISS_CMD_STATUS_ABORTED; 6617 break; 6618 case PQI_DATA_IN_OUT_TIMEOUT: 6619 ciss_cmd_status = CISS_CMD_STATUS_TIMEOUT; 6620 break; 6621 default: 6622 ciss_cmd_status = CISS_CMD_STATUS_TARGET_STATUS; 6623 break; 6624 } 6625 6626 sense_data_length = 6627 get_unaligned_le16(&pqi_error_info->sense_data_length); 6628 if (sense_data_length == 0) 6629 sense_data_length = 6630 get_unaligned_le16(&pqi_error_info->response_data_length); 6631 if (sense_data_length) 6632 if (sense_data_length > sizeof(pqi_error_info->data)) 6633 sense_data_length = sizeof(pqi_error_info->data); 6634 6635 ciss_error_info->scsi_status = pqi_error_info->status; 6636 ciss_error_info->command_status = ciss_cmd_status; 6637 ciss_error_info->sense_data_length = sense_data_length; 6638 } 6639 6640 static int pqi_passthru_ioctl(struct pqi_ctrl_info *ctrl_info, void __user *arg) 6641 { 6642 int rc; 6643 char *kernel_buffer = NULL; 6644 u16 iu_length; 6645 size_t sense_data_length; 6646 IOCTL_Command_struct iocommand; 6647 struct pqi_raid_path_request request; 6648 struct pqi_raid_error_info pqi_error_info; 6649 struct ciss_error_info ciss_error_info; 6650 6651 if (pqi_ctrl_offline(ctrl_info)) 6652 return -ENXIO; 6653 if (pqi_ofa_in_progress(ctrl_info) && pqi_ctrl_blocked(ctrl_info)) 6654 return -EBUSY; 6655 if (!arg) 6656 return -EINVAL; 6657 if (!capable(CAP_SYS_RAWIO)) 6658 return -EPERM; 6659 if (copy_from_user(&iocommand, arg, sizeof(iocommand))) 6660 return -EFAULT; 6661 if (iocommand.buf_size < 1 && 6662 iocommand.Request.Type.Direction != XFER_NONE) 6663 return -EINVAL; 6664 if (iocommand.Request.CDBLen > sizeof(request.cdb)) 6665 return -EINVAL; 6666 if (iocommand.Request.Type.Type != TYPE_CMD) 6667 return -EINVAL; 6668 6669 switch (iocommand.Request.Type.Direction) { 6670 case XFER_NONE: 6671 case XFER_WRITE: 6672 case XFER_READ: 6673 case XFER_READ | XFER_WRITE: 6674 break; 6675 default: 6676 return -EINVAL; 6677 } 6678 6679 if (iocommand.buf_size > 0) { 6680 kernel_buffer = kmalloc(iocommand.buf_size, GFP_KERNEL); 6681 if (!kernel_buffer) 6682 return -ENOMEM; 6683 if (iocommand.Request.Type.Direction & XFER_WRITE) { 6684 if (copy_from_user(kernel_buffer, iocommand.buf, 6685 iocommand.buf_size)) { 6686 rc = -EFAULT; 6687 goto out; 6688 } 6689 } else { 6690 memset(kernel_buffer, 0, iocommand.buf_size); 6691 } 6692 } 6693 6694 memset(&request, 0, sizeof(request)); 6695 6696 request.header.iu_type = PQI_REQUEST_IU_RAID_PATH_IO; 6697 iu_length = offsetof(struct pqi_raid_path_request, sg_descriptors) - 6698 PQI_REQUEST_HEADER_LENGTH; 6699 memcpy(request.lun_number, iocommand.LUN_info.LunAddrBytes, 6700 sizeof(request.lun_number)); 6701 memcpy(request.cdb, iocommand.Request.CDB, iocommand.Request.CDBLen); 6702 request.additional_cdb_bytes_usage = SOP_ADDITIONAL_CDB_BYTES_0; 6703 6704 switch (iocommand.Request.Type.Direction) { 6705 case XFER_NONE: 6706 request.data_direction = SOP_NO_DIRECTION_FLAG; 6707 break; 6708 case XFER_WRITE: 6709 request.data_direction = SOP_WRITE_FLAG; 6710 break; 6711 case XFER_READ: 6712 request.data_direction = SOP_READ_FLAG; 6713 break; 6714 case XFER_READ | XFER_WRITE: 6715 request.data_direction = SOP_BIDIRECTIONAL; 6716 break; 6717 } 6718 6719 request.task_attribute = SOP_TASK_ATTRIBUTE_SIMPLE; 6720 6721 if (iocommand.buf_size > 0) { 6722 put_unaligned_le32(iocommand.buf_size, &request.buffer_length); 6723 6724 rc = pqi_map_single(ctrl_info->pci_dev, 6725 &request.sg_descriptors[0], kernel_buffer, 6726 iocommand.buf_size, DMA_BIDIRECTIONAL); 6727 if (rc) 6728 goto out; 6729 6730 iu_length += sizeof(request.sg_descriptors[0]); 6731 } 6732 6733 put_unaligned_le16(iu_length, &request.header.iu_length); 6734 6735 if (ctrl_info->raid_iu_timeout_supported) 6736 put_unaligned_le32(iocommand.Request.Timeout, &request.timeout); 6737 6738 rc = pqi_submit_raid_request_synchronous(ctrl_info, &request.header, 6739 PQI_SYNC_FLAGS_INTERRUPTABLE, &pqi_error_info); 6740 6741 if (iocommand.buf_size > 0) 6742 pqi_pci_unmap(ctrl_info->pci_dev, request.sg_descriptors, 1, 6743 DMA_BIDIRECTIONAL); 6744 6745 memset(&iocommand.error_info, 0, sizeof(iocommand.error_info)); 6746 6747 if (rc == 0) { 6748 pqi_error_info_to_ciss(&pqi_error_info, &ciss_error_info); 6749 iocommand.error_info.ScsiStatus = ciss_error_info.scsi_status; 6750 iocommand.error_info.CommandStatus = 6751 ciss_error_info.command_status; 6752 sense_data_length = ciss_error_info.sense_data_length; 6753 if (sense_data_length) { 6754 if (sense_data_length > 6755 sizeof(iocommand.error_info.SenseInfo)) 6756 sense_data_length = 6757 sizeof(iocommand.error_info.SenseInfo); 6758 memcpy(iocommand.error_info.SenseInfo, 6759 pqi_error_info.data, sense_data_length); 6760 iocommand.error_info.SenseLen = sense_data_length; 6761 } 6762 } 6763 6764 if (copy_to_user(arg, &iocommand, sizeof(iocommand))) { 6765 rc = -EFAULT; 6766 goto out; 6767 } 6768 6769 if (rc == 0 && iocommand.buf_size > 0 && 6770 (iocommand.Request.Type.Direction & XFER_READ)) { 6771 if (copy_to_user(iocommand.buf, kernel_buffer, 6772 iocommand.buf_size)) { 6773 rc = -EFAULT; 6774 } 6775 } 6776 6777 out: 6778 kfree(kernel_buffer); 6779 6780 return rc; 6781 } 6782 6783 static int pqi_ioctl(struct scsi_device *sdev, unsigned int cmd, 6784 void __user *arg) 6785 { 6786 int rc; 6787 struct pqi_ctrl_info *ctrl_info; 6788 6789 ctrl_info = shost_to_hba(sdev->host); 6790 6791 switch (cmd) { 6792 case CCISS_DEREGDISK: 6793 case CCISS_REGNEWDISK: 6794 case CCISS_REGNEWD: 6795 rc = pqi_scan_scsi_devices(ctrl_info); 6796 break; 6797 case CCISS_GETPCIINFO: 6798 rc = pqi_getpciinfo_ioctl(ctrl_info, arg); 6799 break; 6800 case CCISS_GETDRIVVER: 6801 rc = pqi_getdrivver_ioctl(arg); 6802 break; 6803 case CCISS_PASSTHRU: 6804 rc = pqi_passthru_ioctl(ctrl_info, arg); 6805 break; 6806 default: 6807 rc = -EINVAL; 6808 break; 6809 } 6810 6811 return rc; 6812 } 6813 6814 static ssize_t pqi_firmware_version_show(struct device *dev, 6815 struct device_attribute *attr, char *buffer) 6816 { 6817 struct Scsi_Host *shost; 6818 struct pqi_ctrl_info *ctrl_info; 6819 6820 shost = class_to_shost(dev); 6821 ctrl_info = shost_to_hba(shost); 6822 6823 return scnprintf(buffer, PAGE_SIZE, "%s\n", ctrl_info->firmware_version); 6824 } 6825 6826 static ssize_t pqi_driver_version_show(struct device *dev, 6827 struct device_attribute *attr, char *buffer) 6828 { 6829 return scnprintf(buffer, PAGE_SIZE, "%s\n", DRIVER_VERSION BUILD_TIMESTAMP); 6830 } 6831 6832 static ssize_t pqi_serial_number_show(struct device *dev, 6833 struct device_attribute *attr, char *buffer) 6834 { 6835 struct Scsi_Host *shost; 6836 struct pqi_ctrl_info *ctrl_info; 6837 6838 shost = class_to_shost(dev); 6839 ctrl_info = shost_to_hba(shost); 6840 6841 return scnprintf(buffer, PAGE_SIZE, "%s\n", ctrl_info->serial_number); 6842 } 6843 6844 static ssize_t pqi_model_show(struct device *dev, 6845 struct device_attribute *attr, char *buffer) 6846 { 6847 struct Scsi_Host *shost; 6848 struct pqi_ctrl_info *ctrl_info; 6849 6850 shost = class_to_shost(dev); 6851 ctrl_info = shost_to_hba(shost); 6852 6853 return scnprintf(buffer, PAGE_SIZE, "%s\n", ctrl_info->model); 6854 } 6855 6856 static ssize_t pqi_vendor_show(struct device *dev, 6857 struct device_attribute *attr, char *buffer) 6858 { 6859 struct Scsi_Host *shost; 6860 struct pqi_ctrl_info *ctrl_info; 6861 6862 shost = class_to_shost(dev); 6863 ctrl_info = shost_to_hba(shost); 6864 6865 return scnprintf(buffer, PAGE_SIZE, "%s\n", ctrl_info->vendor); 6866 } 6867 6868 static ssize_t pqi_host_rescan_store(struct device *dev, 6869 struct device_attribute *attr, const char *buffer, size_t count) 6870 { 6871 struct Scsi_Host *shost = class_to_shost(dev); 6872 6873 pqi_scan_start(shost); 6874 6875 return count; 6876 } 6877 6878 static ssize_t pqi_lockup_action_show(struct device *dev, 6879 struct device_attribute *attr, char *buffer) 6880 { 6881 int count = 0; 6882 unsigned int i; 6883 6884 for (i = 0; i < ARRAY_SIZE(pqi_lockup_actions); i++) { 6885 if (pqi_lockup_actions[i].action == pqi_lockup_action) 6886 count += scnprintf(buffer + count, PAGE_SIZE - count, 6887 "[%s] ", pqi_lockup_actions[i].name); 6888 else 6889 count += scnprintf(buffer + count, PAGE_SIZE - count, 6890 "%s ", pqi_lockup_actions[i].name); 6891 } 6892 6893 count += scnprintf(buffer + count, PAGE_SIZE - count, "\n"); 6894 6895 return count; 6896 } 6897 6898 static ssize_t pqi_lockup_action_store(struct device *dev, 6899 struct device_attribute *attr, const char *buffer, size_t count) 6900 { 6901 unsigned int i; 6902 char *action_name; 6903 char action_name_buffer[32]; 6904 6905 strlcpy(action_name_buffer, buffer, sizeof(action_name_buffer)); 6906 action_name = strstrip(action_name_buffer); 6907 6908 for (i = 0; i < ARRAY_SIZE(pqi_lockup_actions); i++) { 6909 if (strcmp(action_name, pqi_lockup_actions[i].name) == 0) { 6910 pqi_lockup_action = pqi_lockup_actions[i].action; 6911 return count; 6912 } 6913 } 6914 6915 return -EINVAL; 6916 } 6917 6918 static ssize_t pqi_host_enable_stream_detection_show(struct device *dev, 6919 struct device_attribute *attr, char *buffer) 6920 { 6921 struct Scsi_Host *shost = class_to_shost(dev); 6922 struct pqi_ctrl_info *ctrl_info = shost_to_hba(shost); 6923 6924 return scnprintf(buffer, 10, "%x\n", 6925 ctrl_info->enable_stream_detection); 6926 } 6927 6928 static ssize_t pqi_host_enable_stream_detection_store(struct device *dev, 6929 struct device_attribute *attr, const char *buffer, size_t count) 6930 { 6931 struct Scsi_Host *shost = class_to_shost(dev); 6932 struct pqi_ctrl_info *ctrl_info = shost_to_hba(shost); 6933 u8 set_stream_detection = 0; 6934 6935 if (kstrtou8(buffer, 0, &set_stream_detection)) 6936 return -EINVAL; 6937 6938 if (set_stream_detection > 0) 6939 set_stream_detection = 1; 6940 6941 ctrl_info->enable_stream_detection = set_stream_detection; 6942 6943 return count; 6944 } 6945 6946 static ssize_t pqi_host_enable_r5_writes_show(struct device *dev, 6947 struct device_attribute *attr, char *buffer) 6948 { 6949 struct Scsi_Host *shost = class_to_shost(dev); 6950 struct pqi_ctrl_info *ctrl_info = shost_to_hba(shost); 6951 6952 return scnprintf(buffer, 10, "%x\n", ctrl_info->enable_r5_writes); 6953 } 6954 6955 static ssize_t pqi_host_enable_r5_writes_store(struct device *dev, 6956 struct device_attribute *attr, const char *buffer, size_t count) 6957 { 6958 struct Scsi_Host *shost = class_to_shost(dev); 6959 struct pqi_ctrl_info *ctrl_info = shost_to_hba(shost); 6960 u8 set_r5_writes = 0; 6961 6962 if (kstrtou8(buffer, 0, &set_r5_writes)) 6963 return -EINVAL; 6964 6965 if (set_r5_writes > 0) 6966 set_r5_writes = 1; 6967 6968 ctrl_info->enable_r5_writes = set_r5_writes; 6969 6970 return count; 6971 } 6972 6973 static ssize_t pqi_host_enable_r6_writes_show(struct device *dev, 6974 struct device_attribute *attr, char *buffer) 6975 { 6976 struct Scsi_Host *shost = class_to_shost(dev); 6977 struct pqi_ctrl_info *ctrl_info = shost_to_hba(shost); 6978 6979 return scnprintf(buffer, 10, "%x\n", ctrl_info->enable_r6_writes); 6980 } 6981 6982 static ssize_t pqi_host_enable_r6_writes_store(struct device *dev, 6983 struct device_attribute *attr, const char *buffer, size_t count) 6984 { 6985 struct Scsi_Host *shost = class_to_shost(dev); 6986 struct pqi_ctrl_info *ctrl_info = shost_to_hba(shost); 6987 u8 set_r6_writes = 0; 6988 6989 if (kstrtou8(buffer, 0, &set_r6_writes)) 6990 return -EINVAL; 6991 6992 if (set_r6_writes > 0) 6993 set_r6_writes = 1; 6994 6995 ctrl_info->enable_r6_writes = set_r6_writes; 6996 6997 return count; 6998 } 6999 7000 static DEVICE_ATTR(driver_version, 0444, pqi_driver_version_show, NULL); 7001 static DEVICE_ATTR(firmware_version, 0444, pqi_firmware_version_show, NULL); 7002 static DEVICE_ATTR(model, 0444, pqi_model_show, NULL); 7003 static DEVICE_ATTR(serial_number, 0444, pqi_serial_number_show, NULL); 7004 static DEVICE_ATTR(vendor, 0444, pqi_vendor_show, NULL); 7005 static DEVICE_ATTR(rescan, 0200, NULL, pqi_host_rescan_store); 7006 static DEVICE_ATTR(lockup_action, 0644, pqi_lockup_action_show, 7007 pqi_lockup_action_store); 7008 static DEVICE_ATTR(enable_stream_detection, 0644, 7009 pqi_host_enable_stream_detection_show, 7010 pqi_host_enable_stream_detection_store); 7011 static DEVICE_ATTR(enable_r5_writes, 0644, 7012 pqi_host_enable_r5_writes_show, pqi_host_enable_r5_writes_store); 7013 static DEVICE_ATTR(enable_r6_writes, 0644, 7014 pqi_host_enable_r6_writes_show, pqi_host_enable_r6_writes_store); 7015 7016 static struct attribute *pqi_shost_attrs[] = { 7017 &dev_attr_driver_version.attr, 7018 &dev_attr_firmware_version.attr, 7019 &dev_attr_model.attr, 7020 &dev_attr_serial_number.attr, 7021 &dev_attr_vendor.attr, 7022 &dev_attr_rescan.attr, 7023 &dev_attr_lockup_action.attr, 7024 &dev_attr_enable_stream_detection.attr, 7025 &dev_attr_enable_r5_writes.attr, 7026 &dev_attr_enable_r6_writes.attr, 7027 NULL 7028 }; 7029 7030 ATTRIBUTE_GROUPS(pqi_shost); 7031 7032 static ssize_t pqi_unique_id_show(struct device *dev, 7033 struct device_attribute *attr, char *buffer) 7034 { 7035 struct pqi_ctrl_info *ctrl_info; 7036 struct scsi_device *sdev; 7037 struct pqi_scsi_dev *device; 7038 unsigned long flags; 7039 u8 unique_id[16]; 7040 7041 sdev = to_scsi_device(dev); 7042 ctrl_info = shost_to_hba(sdev->host); 7043 7044 if (pqi_ctrl_offline(ctrl_info)) 7045 return -ENODEV; 7046 7047 spin_lock_irqsave(&ctrl_info->scsi_device_list_lock, flags); 7048 7049 device = sdev->hostdata; 7050 if (!device) { 7051 spin_unlock_irqrestore(&ctrl_info->scsi_device_list_lock, flags); 7052 return -ENODEV; 7053 } 7054 7055 if (device->is_physical_device) 7056 memcpy(unique_id, device->wwid, sizeof(device->wwid)); 7057 else 7058 memcpy(unique_id, device->volume_id, sizeof(device->volume_id)); 7059 7060 spin_unlock_irqrestore(&ctrl_info->scsi_device_list_lock, flags); 7061 7062 return scnprintf(buffer, PAGE_SIZE, 7063 "%02X%02X%02X%02X%02X%02X%02X%02X" 7064 "%02X%02X%02X%02X%02X%02X%02X%02X\n", 7065 unique_id[0], unique_id[1], unique_id[2], unique_id[3], 7066 unique_id[4], unique_id[5], unique_id[6], unique_id[7], 7067 unique_id[8], unique_id[9], unique_id[10], unique_id[11], 7068 unique_id[12], unique_id[13], unique_id[14], unique_id[15]); 7069 } 7070 7071 static ssize_t pqi_lunid_show(struct device *dev, 7072 struct device_attribute *attr, char *buffer) 7073 { 7074 struct pqi_ctrl_info *ctrl_info; 7075 struct scsi_device *sdev; 7076 struct pqi_scsi_dev *device; 7077 unsigned long flags; 7078 u8 lunid[8]; 7079 7080 sdev = to_scsi_device(dev); 7081 ctrl_info = shost_to_hba(sdev->host); 7082 7083 if (pqi_ctrl_offline(ctrl_info)) 7084 return -ENODEV; 7085 7086 spin_lock_irqsave(&ctrl_info->scsi_device_list_lock, flags); 7087 7088 device = sdev->hostdata; 7089 if (!device) { 7090 spin_unlock_irqrestore(&ctrl_info->scsi_device_list_lock, flags); 7091 return -ENODEV; 7092 } 7093 7094 memcpy(lunid, device->scsi3addr, sizeof(lunid)); 7095 7096 spin_unlock_irqrestore(&ctrl_info->scsi_device_list_lock, flags); 7097 7098 return scnprintf(buffer, PAGE_SIZE, "0x%8phN\n", lunid); 7099 } 7100 7101 #define MAX_PATHS 8 7102 7103 static ssize_t pqi_path_info_show(struct device *dev, 7104 struct device_attribute *attr, char *buf) 7105 { 7106 struct pqi_ctrl_info *ctrl_info; 7107 struct scsi_device *sdev; 7108 struct pqi_scsi_dev *device; 7109 unsigned long flags; 7110 int i; 7111 int output_len = 0; 7112 u8 box; 7113 u8 bay; 7114 u8 path_map_index; 7115 char *active; 7116 u8 phys_connector[2]; 7117 7118 sdev = to_scsi_device(dev); 7119 ctrl_info = shost_to_hba(sdev->host); 7120 7121 if (pqi_ctrl_offline(ctrl_info)) 7122 return -ENODEV; 7123 7124 spin_lock_irqsave(&ctrl_info->scsi_device_list_lock, flags); 7125 7126 device = sdev->hostdata; 7127 if (!device) { 7128 spin_unlock_irqrestore(&ctrl_info->scsi_device_list_lock, flags); 7129 return -ENODEV; 7130 } 7131 7132 bay = device->bay; 7133 for (i = 0; i < MAX_PATHS; i++) { 7134 path_map_index = 1 << i; 7135 if (i == device->active_path_index) 7136 active = "Active"; 7137 else if (device->path_map & path_map_index) 7138 active = "Inactive"; 7139 else 7140 continue; 7141 7142 output_len += scnprintf(buf + output_len, 7143 PAGE_SIZE - output_len, 7144 "[%d:%d:%d:%d] %20.20s ", 7145 ctrl_info->scsi_host->host_no, 7146 device->bus, device->target, 7147 device->lun, 7148 scsi_device_type(device->devtype)); 7149 7150 if (device->devtype == TYPE_RAID || 7151 pqi_is_logical_device(device)) 7152 goto end_buffer; 7153 7154 memcpy(&phys_connector, &device->phys_connector[i], 7155 sizeof(phys_connector)); 7156 if (phys_connector[0] < '0') 7157 phys_connector[0] = '0'; 7158 if (phys_connector[1] < '0') 7159 phys_connector[1] = '0'; 7160 7161 output_len += scnprintf(buf + output_len, 7162 PAGE_SIZE - output_len, 7163 "PORT: %.2s ", phys_connector); 7164 7165 box = device->box[i]; 7166 if (box != 0 && box != 0xFF) 7167 output_len += scnprintf(buf + output_len, 7168 PAGE_SIZE - output_len, 7169 "BOX: %hhu ", box); 7170 7171 if ((device->devtype == TYPE_DISK || 7172 device->devtype == TYPE_ZBC) && 7173 pqi_expose_device(device)) 7174 output_len += scnprintf(buf + output_len, 7175 PAGE_SIZE - output_len, 7176 "BAY: %hhu ", bay); 7177 7178 end_buffer: 7179 output_len += scnprintf(buf + output_len, 7180 PAGE_SIZE - output_len, 7181 "%s\n", active); 7182 } 7183 7184 spin_unlock_irqrestore(&ctrl_info->scsi_device_list_lock, flags); 7185 7186 return output_len; 7187 } 7188 7189 static ssize_t pqi_sas_address_show(struct device *dev, 7190 struct device_attribute *attr, char *buffer) 7191 { 7192 struct pqi_ctrl_info *ctrl_info; 7193 struct scsi_device *sdev; 7194 struct pqi_scsi_dev *device; 7195 unsigned long flags; 7196 u64 sas_address; 7197 7198 sdev = to_scsi_device(dev); 7199 ctrl_info = shost_to_hba(sdev->host); 7200 7201 if (pqi_ctrl_offline(ctrl_info)) 7202 return -ENODEV; 7203 7204 spin_lock_irqsave(&ctrl_info->scsi_device_list_lock, flags); 7205 7206 device = sdev->hostdata; 7207 if (!device) { 7208 spin_unlock_irqrestore(&ctrl_info->scsi_device_list_lock, flags); 7209 return -ENODEV; 7210 } 7211 7212 sas_address = device->sas_address; 7213 7214 spin_unlock_irqrestore(&ctrl_info->scsi_device_list_lock, flags); 7215 7216 return scnprintf(buffer, PAGE_SIZE, "0x%016llx\n", sas_address); 7217 } 7218 7219 static ssize_t pqi_ssd_smart_path_enabled_show(struct device *dev, 7220 struct device_attribute *attr, char *buffer) 7221 { 7222 struct pqi_ctrl_info *ctrl_info; 7223 struct scsi_device *sdev; 7224 struct pqi_scsi_dev *device; 7225 unsigned long flags; 7226 7227 sdev = to_scsi_device(dev); 7228 ctrl_info = shost_to_hba(sdev->host); 7229 7230 if (pqi_ctrl_offline(ctrl_info)) 7231 return -ENODEV; 7232 7233 spin_lock_irqsave(&ctrl_info->scsi_device_list_lock, flags); 7234 7235 device = sdev->hostdata; 7236 if (!device) { 7237 spin_unlock_irqrestore(&ctrl_info->scsi_device_list_lock, flags); 7238 return -ENODEV; 7239 } 7240 7241 buffer[0] = device->raid_bypass_enabled ? '1' : '0'; 7242 buffer[1] = '\n'; 7243 buffer[2] = '\0'; 7244 7245 spin_unlock_irqrestore(&ctrl_info->scsi_device_list_lock, flags); 7246 7247 return 2; 7248 } 7249 7250 static ssize_t pqi_raid_level_show(struct device *dev, 7251 struct device_attribute *attr, char *buffer) 7252 { 7253 struct pqi_ctrl_info *ctrl_info; 7254 struct scsi_device *sdev; 7255 struct pqi_scsi_dev *device; 7256 unsigned long flags; 7257 char *raid_level; 7258 7259 sdev = to_scsi_device(dev); 7260 ctrl_info = shost_to_hba(sdev->host); 7261 7262 if (pqi_ctrl_offline(ctrl_info)) 7263 return -ENODEV; 7264 7265 spin_lock_irqsave(&ctrl_info->scsi_device_list_lock, flags); 7266 7267 device = sdev->hostdata; 7268 if (!device) { 7269 spin_unlock_irqrestore(&ctrl_info->scsi_device_list_lock, flags); 7270 return -ENODEV; 7271 } 7272 7273 if (pqi_is_logical_device(device) && device->devtype == TYPE_DISK) 7274 raid_level = pqi_raid_level_to_string(device->raid_level); 7275 else 7276 raid_level = "N/A"; 7277 7278 spin_unlock_irqrestore(&ctrl_info->scsi_device_list_lock, flags); 7279 7280 return scnprintf(buffer, PAGE_SIZE, "%s\n", raid_level); 7281 } 7282 7283 static ssize_t pqi_raid_bypass_cnt_show(struct device *dev, 7284 struct device_attribute *attr, char *buffer) 7285 { 7286 struct pqi_ctrl_info *ctrl_info; 7287 struct scsi_device *sdev; 7288 struct pqi_scsi_dev *device; 7289 unsigned long flags; 7290 int raid_bypass_cnt; 7291 7292 sdev = to_scsi_device(dev); 7293 ctrl_info = shost_to_hba(sdev->host); 7294 7295 if (pqi_ctrl_offline(ctrl_info)) 7296 return -ENODEV; 7297 7298 spin_lock_irqsave(&ctrl_info->scsi_device_list_lock, flags); 7299 7300 device = sdev->hostdata; 7301 if (!device) { 7302 spin_unlock_irqrestore(&ctrl_info->scsi_device_list_lock, flags); 7303 return -ENODEV; 7304 } 7305 7306 raid_bypass_cnt = atomic_read(&device->raid_bypass_cnt); 7307 7308 spin_unlock_irqrestore(&ctrl_info->scsi_device_list_lock, flags); 7309 7310 return scnprintf(buffer, PAGE_SIZE, "0x%x\n", raid_bypass_cnt); 7311 } 7312 7313 static ssize_t pqi_sas_ncq_prio_enable_show(struct device *dev, 7314 struct device_attribute *attr, char *buf) 7315 { 7316 struct pqi_ctrl_info *ctrl_info; 7317 struct scsi_device *sdev; 7318 struct pqi_scsi_dev *device; 7319 unsigned long flags; 7320 int output_len = 0; 7321 7322 sdev = to_scsi_device(dev); 7323 ctrl_info = shost_to_hba(sdev->host); 7324 7325 if (pqi_ctrl_offline(ctrl_info)) 7326 return -ENODEV; 7327 7328 spin_lock_irqsave(&ctrl_info->scsi_device_list_lock, flags); 7329 7330 device = sdev->hostdata; 7331 if (!device) { 7332 spin_unlock_irqrestore(&ctrl_info->scsi_device_list_lock, flags); 7333 return -ENODEV; 7334 } 7335 7336 output_len = snprintf(buf, PAGE_SIZE, "%d\n", 7337 device->ncq_prio_enable); 7338 spin_unlock_irqrestore(&ctrl_info->scsi_device_list_lock, flags); 7339 7340 return output_len; 7341 } 7342 7343 static ssize_t pqi_sas_ncq_prio_enable_store(struct device *dev, 7344 struct device_attribute *attr, 7345 const char *buf, size_t count) 7346 { 7347 struct pqi_ctrl_info *ctrl_info; 7348 struct scsi_device *sdev; 7349 struct pqi_scsi_dev *device; 7350 unsigned long flags; 7351 u8 ncq_prio_enable = 0; 7352 7353 if (kstrtou8(buf, 0, &ncq_prio_enable)) 7354 return -EINVAL; 7355 7356 sdev = to_scsi_device(dev); 7357 ctrl_info = shost_to_hba(sdev->host); 7358 7359 spin_lock_irqsave(&ctrl_info->scsi_device_list_lock, flags); 7360 7361 device = sdev->hostdata; 7362 7363 if (!device) { 7364 spin_unlock_irqrestore(&ctrl_info->scsi_device_list_lock, flags); 7365 return -ENODEV; 7366 } 7367 7368 if (!device->ncq_prio_support || 7369 !device->is_physical_device) { 7370 spin_unlock_irqrestore(&ctrl_info->scsi_device_list_lock, flags); 7371 return -EINVAL; 7372 } 7373 7374 device->ncq_prio_enable = ncq_prio_enable; 7375 7376 spin_unlock_irqrestore(&ctrl_info->scsi_device_list_lock, flags); 7377 7378 return strlen(buf); 7379 } 7380 7381 static DEVICE_ATTR(lunid, 0444, pqi_lunid_show, NULL); 7382 static DEVICE_ATTR(unique_id, 0444, pqi_unique_id_show, NULL); 7383 static DEVICE_ATTR(path_info, 0444, pqi_path_info_show, NULL); 7384 static DEVICE_ATTR(sas_address, 0444, pqi_sas_address_show, NULL); 7385 static DEVICE_ATTR(ssd_smart_path_enabled, 0444, pqi_ssd_smart_path_enabled_show, NULL); 7386 static DEVICE_ATTR(raid_level, 0444, pqi_raid_level_show, NULL); 7387 static DEVICE_ATTR(raid_bypass_cnt, 0444, pqi_raid_bypass_cnt_show, NULL); 7388 static DEVICE_ATTR(sas_ncq_prio_enable, 0644, 7389 pqi_sas_ncq_prio_enable_show, pqi_sas_ncq_prio_enable_store); 7390 7391 static struct attribute *pqi_sdev_attrs[] = { 7392 &dev_attr_lunid.attr, 7393 &dev_attr_unique_id.attr, 7394 &dev_attr_path_info.attr, 7395 &dev_attr_sas_address.attr, 7396 &dev_attr_ssd_smart_path_enabled.attr, 7397 &dev_attr_raid_level.attr, 7398 &dev_attr_raid_bypass_cnt.attr, 7399 &dev_attr_sas_ncq_prio_enable.attr, 7400 NULL 7401 }; 7402 7403 ATTRIBUTE_GROUPS(pqi_sdev); 7404 7405 static struct scsi_host_template pqi_driver_template = { 7406 .module = THIS_MODULE, 7407 .name = DRIVER_NAME_SHORT, 7408 .proc_name = DRIVER_NAME_SHORT, 7409 .queuecommand = pqi_scsi_queue_command, 7410 .scan_start = pqi_scan_start, 7411 .scan_finished = pqi_scan_finished, 7412 .this_id = -1, 7413 .eh_device_reset_handler = pqi_eh_device_reset_handler, 7414 .ioctl = pqi_ioctl, 7415 .slave_alloc = pqi_slave_alloc, 7416 .slave_configure = pqi_slave_configure, 7417 .slave_destroy = pqi_slave_destroy, 7418 .map_queues = pqi_map_queues, 7419 .sdev_groups = pqi_sdev_groups, 7420 .shost_groups = pqi_shost_groups, 7421 .cmd_size = sizeof(struct pqi_cmd_priv), 7422 }; 7423 7424 static int pqi_register_scsi(struct pqi_ctrl_info *ctrl_info) 7425 { 7426 int rc; 7427 struct Scsi_Host *shost; 7428 7429 shost = scsi_host_alloc(&pqi_driver_template, sizeof(ctrl_info)); 7430 if (!shost) { 7431 dev_err(&ctrl_info->pci_dev->dev, "scsi_host_alloc failed\n"); 7432 return -ENOMEM; 7433 } 7434 7435 shost->io_port = 0; 7436 shost->n_io_port = 0; 7437 shost->this_id = -1; 7438 shost->max_channel = PQI_MAX_BUS; 7439 shost->max_cmd_len = MAX_COMMAND_SIZE; 7440 shost->max_lun = PQI_MAX_LUNS_PER_DEVICE; 7441 shost->max_id = ~0; 7442 shost->max_sectors = ctrl_info->max_sectors; 7443 shost->can_queue = ctrl_info->scsi_ml_can_queue; 7444 shost->cmd_per_lun = shost->can_queue; 7445 shost->sg_tablesize = ctrl_info->sg_tablesize; 7446 shost->transportt = pqi_sas_transport_template; 7447 shost->irq = pci_irq_vector(ctrl_info->pci_dev, 0); 7448 shost->unique_id = shost->irq; 7449 shost->nr_hw_queues = ctrl_info->num_queue_groups; 7450 shost->host_tagset = 1; 7451 shost->hostdata[0] = (unsigned long)ctrl_info; 7452 7453 rc = scsi_add_host(shost, &ctrl_info->pci_dev->dev); 7454 if (rc) { 7455 dev_err(&ctrl_info->pci_dev->dev, "scsi_add_host failed\n"); 7456 goto free_host; 7457 } 7458 7459 rc = pqi_add_sas_host(shost, ctrl_info); 7460 if (rc) { 7461 dev_err(&ctrl_info->pci_dev->dev, "add SAS host failed\n"); 7462 goto remove_host; 7463 } 7464 7465 ctrl_info->scsi_host = shost; 7466 7467 return 0; 7468 7469 remove_host: 7470 scsi_remove_host(shost); 7471 free_host: 7472 scsi_host_put(shost); 7473 7474 return rc; 7475 } 7476 7477 static void pqi_unregister_scsi(struct pqi_ctrl_info *ctrl_info) 7478 { 7479 struct Scsi_Host *shost; 7480 7481 pqi_delete_sas_host(ctrl_info); 7482 7483 shost = ctrl_info->scsi_host; 7484 if (!shost) 7485 return; 7486 7487 scsi_remove_host(shost); 7488 scsi_host_put(shost); 7489 } 7490 7491 static int pqi_wait_for_pqi_reset_completion(struct pqi_ctrl_info *ctrl_info) 7492 { 7493 int rc = 0; 7494 struct pqi_device_registers __iomem *pqi_registers; 7495 unsigned long timeout; 7496 unsigned int timeout_msecs; 7497 union pqi_reset_register reset_reg; 7498 7499 pqi_registers = ctrl_info->pqi_registers; 7500 timeout_msecs = readw(&pqi_registers->max_reset_timeout) * 100; 7501 timeout = msecs_to_jiffies(timeout_msecs) + jiffies; 7502 7503 while (1) { 7504 msleep(PQI_RESET_POLL_INTERVAL_MSECS); 7505 reset_reg.all_bits = readl(&pqi_registers->device_reset); 7506 if (reset_reg.bits.reset_action == PQI_RESET_ACTION_COMPLETED) 7507 break; 7508 if (!sis_is_firmware_running(ctrl_info)) { 7509 rc = -ENXIO; 7510 break; 7511 } 7512 if (time_after(jiffies, timeout)) { 7513 rc = -ETIMEDOUT; 7514 break; 7515 } 7516 } 7517 7518 return rc; 7519 } 7520 7521 static int pqi_reset(struct pqi_ctrl_info *ctrl_info) 7522 { 7523 int rc; 7524 union pqi_reset_register reset_reg; 7525 7526 if (ctrl_info->pqi_reset_quiesce_supported) { 7527 rc = sis_pqi_reset_quiesce(ctrl_info); 7528 if (rc) { 7529 dev_err(&ctrl_info->pci_dev->dev, 7530 "PQI reset failed during quiesce with error %d\n", rc); 7531 return rc; 7532 } 7533 } 7534 7535 reset_reg.all_bits = 0; 7536 reset_reg.bits.reset_type = PQI_RESET_TYPE_HARD_RESET; 7537 reset_reg.bits.reset_action = PQI_RESET_ACTION_RESET; 7538 7539 writel(reset_reg.all_bits, &ctrl_info->pqi_registers->device_reset); 7540 7541 rc = pqi_wait_for_pqi_reset_completion(ctrl_info); 7542 if (rc) 7543 dev_err(&ctrl_info->pci_dev->dev, 7544 "PQI reset failed with error %d\n", rc); 7545 7546 return rc; 7547 } 7548 7549 static int pqi_get_ctrl_serial_number(struct pqi_ctrl_info *ctrl_info) 7550 { 7551 int rc; 7552 struct bmic_sense_subsystem_info *sense_info; 7553 7554 sense_info = kzalloc(sizeof(*sense_info), GFP_KERNEL); 7555 if (!sense_info) 7556 return -ENOMEM; 7557 7558 rc = pqi_sense_subsystem_info(ctrl_info, sense_info); 7559 if (rc) 7560 goto out; 7561 7562 memcpy(ctrl_info->serial_number, sense_info->ctrl_serial_number, 7563 sizeof(sense_info->ctrl_serial_number)); 7564 ctrl_info->serial_number[sizeof(sense_info->ctrl_serial_number)] = '\0'; 7565 7566 out: 7567 kfree(sense_info); 7568 7569 return rc; 7570 } 7571 7572 static int pqi_get_ctrl_product_details(struct pqi_ctrl_info *ctrl_info) 7573 { 7574 int rc; 7575 struct bmic_identify_controller *identify; 7576 7577 identify = kmalloc(sizeof(*identify), GFP_KERNEL); 7578 if (!identify) 7579 return -ENOMEM; 7580 7581 rc = pqi_identify_controller(ctrl_info, identify); 7582 if (rc) 7583 goto out; 7584 7585 if (get_unaligned_le32(&identify->extra_controller_flags) & 7586 BMIC_IDENTIFY_EXTRA_FLAGS_LONG_FW_VERSION_SUPPORTED) { 7587 memcpy(ctrl_info->firmware_version, 7588 identify->firmware_version_long, 7589 sizeof(identify->firmware_version_long)); 7590 } else { 7591 memcpy(ctrl_info->firmware_version, 7592 identify->firmware_version_short, 7593 sizeof(identify->firmware_version_short)); 7594 ctrl_info->firmware_version 7595 [sizeof(identify->firmware_version_short)] = '\0'; 7596 snprintf(ctrl_info->firmware_version + 7597 strlen(ctrl_info->firmware_version), 7598 sizeof(ctrl_info->firmware_version) - 7599 sizeof(identify->firmware_version_short), 7600 "-%u", 7601 get_unaligned_le16(&identify->firmware_build_number)); 7602 } 7603 7604 memcpy(ctrl_info->model, identify->product_id, 7605 sizeof(identify->product_id)); 7606 ctrl_info->model[sizeof(identify->product_id)] = '\0'; 7607 7608 memcpy(ctrl_info->vendor, identify->vendor_id, 7609 sizeof(identify->vendor_id)); 7610 ctrl_info->vendor[sizeof(identify->vendor_id)] = '\0'; 7611 7612 dev_info(&ctrl_info->pci_dev->dev, 7613 "Firmware version: %s\n", ctrl_info->firmware_version); 7614 7615 out: 7616 kfree(identify); 7617 7618 return rc; 7619 } 7620 7621 struct pqi_config_table_section_info { 7622 struct pqi_ctrl_info *ctrl_info; 7623 void *section; 7624 u32 section_offset; 7625 void __iomem *section_iomem_addr; 7626 }; 7627 7628 static inline bool pqi_is_firmware_feature_supported( 7629 struct pqi_config_table_firmware_features *firmware_features, 7630 unsigned int bit_position) 7631 { 7632 unsigned int byte_index; 7633 7634 byte_index = bit_position / BITS_PER_BYTE; 7635 7636 if (byte_index >= le16_to_cpu(firmware_features->num_elements)) 7637 return false; 7638 7639 return firmware_features->features_supported[byte_index] & 7640 (1 << (bit_position % BITS_PER_BYTE)) ? true : false; 7641 } 7642 7643 static inline bool pqi_is_firmware_feature_enabled( 7644 struct pqi_config_table_firmware_features *firmware_features, 7645 void __iomem *firmware_features_iomem_addr, 7646 unsigned int bit_position) 7647 { 7648 unsigned int byte_index; 7649 u8 __iomem *features_enabled_iomem_addr; 7650 7651 byte_index = (bit_position / BITS_PER_BYTE) + 7652 (le16_to_cpu(firmware_features->num_elements) * 2); 7653 7654 features_enabled_iomem_addr = firmware_features_iomem_addr + 7655 offsetof(struct pqi_config_table_firmware_features, 7656 features_supported) + byte_index; 7657 7658 return *((__force u8 *)features_enabled_iomem_addr) & 7659 (1 << (bit_position % BITS_PER_BYTE)) ? true : false; 7660 } 7661 7662 static inline void pqi_request_firmware_feature( 7663 struct pqi_config_table_firmware_features *firmware_features, 7664 unsigned int bit_position) 7665 { 7666 unsigned int byte_index; 7667 7668 byte_index = (bit_position / BITS_PER_BYTE) + 7669 le16_to_cpu(firmware_features->num_elements); 7670 7671 firmware_features->features_supported[byte_index] |= 7672 (1 << (bit_position % BITS_PER_BYTE)); 7673 } 7674 7675 static int pqi_config_table_update(struct pqi_ctrl_info *ctrl_info, 7676 u16 first_section, u16 last_section) 7677 { 7678 struct pqi_vendor_general_request request; 7679 7680 memset(&request, 0, sizeof(request)); 7681 7682 request.header.iu_type = PQI_REQUEST_IU_VENDOR_GENERAL; 7683 put_unaligned_le16(sizeof(request) - PQI_REQUEST_HEADER_LENGTH, 7684 &request.header.iu_length); 7685 put_unaligned_le16(PQI_VENDOR_GENERAL_CONFIG_TABLE_UPDATE, 7686 &request.function_code); 7687 put_unaligned_le16(first_section, 7688 &request.data.config_table_update.first_section); 7689 put_unaligned_le16(last_section, 7690 &request.data.config_table_update.last_section); 7691 7692 return pqi_submit_raid_request_synchronous(ctrl_info, &request.header, 0, NULL); 7693 } 7694 7695 static int pqi_enable_firmware_features(struct pqi_ctrl_info *ctrl_info, 7696 struct pqi_config_table_firmware_features *firmware_features, 7697 void __iomem *firmware_features_iomem_addr) 7698 { 7699 void *features_requested; 7700 void __iomem *features_requested_iomem_addr; 7701 void __iomem *host_max_known_feature_iomem_addr; 7702 7703 features_requested = firmware_features->features_supported + 7704 le16_to_cpu(firmware_features->num_elements); 7705 7706 features_requested_iomem_addr = firmware_features_iomem_addr + 7707 (features_requested - (void *)firmware_features); 7708 7709 memcpy_toio(features_requested_iomem_addr, features_requested, 7710 le16_to_cpu(firmware_features->num_elements)); 7711 7712 if (pqi_is_firmware_feature_supported(firmware_features, 7713 PQI_FIRMWARE_FEATURE_MAX_KNOWN_FEATURE)) { 7714 host_max_known_feature_iomem_addr = 7715 features_requested_iomem_addr + 7716 (le16_to_cpu(firmware_features->num_elements) * 2) + 7717 sizeof(__le16); 7718 writew(PQI_FIRMWARE_FEATURE_MAXIMUM, 7719 host_max_known_feature_iomem_addr); 7720 } 7721 7722 return pqi_config_table_update(ctrl_info, 7723 PQI_CONFIG_TABLE_SECTION_FIRMWARE_FEATURES, 7724 PQI_CONFIG_TABLE_SECTION_FIRMWARE_FEATURES); 7725 } 7726 7727 struct pqi_firmware_feature { 7728 char *feature_name; 7729 unsigned int feature_bit; 7730 bool supported; 7731 bool enabled; 7732 void (*feature_status)(struct pqi_ctrl_info *ctrl_info, 7733 struct pqi_firmware_feature *firmware_feature); 7734 }; 7735 7736 static void pqi_firmware_feature_status(struct pqi_ctrl_info *ctrl_info, 7737 struct pqi_firmware_feature *firmware_feature) 7738 { 7739 if (!firmware_feature->supported) { 7740 dev_info(&ctrl_info->pci_dev->dev, "%s not supported by controller\n", 7741 firmware_feature->feature_name); 7742 return; 7743 } 7744 7745 if (firmware_feature->enabled) { 7746 dev_info(&ctrl_info->pci_dev->dev, 7747 "%s enabled\n", firmware_feature->feature_name); 7748 return; 7749 } 7750 7751 dev_err(&ctrl_info->pci_dev->dev, "failed to enable %s\n", 7752 firmware_feature->feature_name); 7753 } 7754 7755 static void pqi_ctrl_update_feature_flags(struct pqi_ctrl_info *ctrl_info, 7756 struct pqi_firmware_feature *firmware_feature) 7757 { 7758 switch (firmware_feature->feature_bit) { 7759 case PQI_FIRMWARE_FEATURE_RAID_1_WRITE_BYPASS: 7760 ctrl_info->enable_r1_writes = firmware_feature->enabled; 7761 break; 7762 case PQI_FIRMWARE_FEATURE_RAID_5_WRITE_BYPASS: 7763 ctrl_info->enable_r5_writes = firmware_feature->enabled; 7764 break; 7765 case PQI_FIRMWARE_FEATURE_RAID_6_WRITE_BYPASS: 7766 ctrl_info->enable_r6_writes = firmware_feature->enabled; 7767 break; 7768 case PQI_FIRMWARE_FEATURE_SOFT_RESET_HANDSHAKE: 7769 ctrl_info->soft_reset_handshake_supported = 7770 firmware_feature->enabled && 7771 pqi_read_soft_reset_status(ctrl_info); 7772 break; 7773 case PQI_FIRMWARE_FEATURE_RAID_IU_TIMEOUT: 7774 ctrl_info->raid_iu_timeout_supported = firmware_feature->enabled; 7775 break; 7776 case PQI_FIRMWARE_FEATURE_TMF_IU_TIMEOUT: 7777 ctrl_info->tmf_iu_timeout_supported = firmware_feature->enabled; 7778 break; 7779 case PQI_FIRMWARE_FEATURE_FW_TRIAGE: 7780 ctrl_info->firmware_triage_supported = firmware_feature->enabled; 7781 pqi_save_fw_triage_setting(ctrl_info, firmware_feature->enabled); 7782 break; 7783 case PQI_FIRMWARE_FEATURE_RPL_EXTENDED_FORMAT_4_5: 7784 ctrl_info->rpl_extended_format_4_5_supported = firmware_feature->enabled; 7785 break; 7786 case PQI_FIRMWARE_FEATURE_MULTI_LUN_DEVICE_SUPPORT: 7787 ctrl_info->multi_lun_device_supported = firmware_feature->enabled; 7788 break; 7789 } 7790 7791 pqi_firmware_feature_status(ctrl_info, firmware_feature); 7792 } 7793 7794 static inline void pqi_firmware_feature_update(struct pqi_ctrl_info *ctrl_info, 7795 struct pqi_firmware_feature *firmware_feature) 7796 { 7797 if (firmware_feature->feature_status) 7798 firmware_feature->feature_status(ctrl_info, firmware_feature); 7799 } 7800 7801 static DEFINE_MUTEX(pqi_firmware_features_mutex); 7802 7803 static struct pqi_firmware_feature pqi_firmware_features[] = { 7804 { 7805 .feature_name = "Online Firmware Activation", 7806 .feature_bit = PQI_FIRMWARE_FEATURE_OFA, 7807 .feature_status = pqi_firmware_feature_status, 7808 }, 7809 { 7810 .feature_name = "Serial Management Protocol", 7811 .feature_bit = PQI_FIRMWARE_FEATURE_SMP, 7812 .feature_status = pqi_firmware_feature_status, 7813 }, 7814 { 7815 .feature_name = "Maximum Known Feature", 7816 .feature_bit = PQI_FIRMWARE_FEATURE_MAX_KNOWN_FEATURE, 7817 .feature_status = pqi_firmware_feature_status, 7818 }, 7819 { 7820 .feature_name = "RAID 0 Read Bypass", 7821 .feature_bit = PQI_FIRMWARE_FEATURE_RAID_0_READ_BYPASS, 7822 .feature_status = pqi_firmware_feature_status, 7823 }, 7824 { 7825 .feature_name = "RAID 1 Read Bypass", 7826 .feature_bit = PQI_FIRMWARE_FEATURE_RAID_1_READ_BYPASS, 7827 .feature_status = pqi_firmware_feature_status, 7828 }, 7829 { 7830 .feature_name = "RAID 5 Read Bypass", 7831 .feature_bit = PQI_FIRMWARE_FEATURE_RAID_5_READ_BYPASS, 7832 .feature_status = pqi_firmware_feature_status, 7833 }, 7834 { 7835 .feature_name = "RAID 6 Read Bypass", 7836 .feature_bit = PQI_FIRMWARE_FEATURE_RAID_6_READ_BYPASS, 7837 .feature_status = pqi_firmware_feature_status, 7838 }, 7839 { 7840 .feature_name = "RAID 0 Write Bypass", 7841 .feature_bit = PQI_FIRMWARE_FEATURE_RAID_0_WRITE_BYPASS, 7842 .feature_status = pqi_firmware_feature_status, 7843 }, 7844 { 7845 .feature_name = "RAID 1 Write Bypass", 7846 .feature_bit = PQI_FIRMWARE_FEATURE_RAID_1_WRITE_BYPASS, 7847 .feature_status = pqi_ctrl_update_feature_flags, 7848 }, 7849 { 7850 .feature_name = "RAID 5 Write Bypass", 7851 .feature_bit = PQI_FIRMWARE_FEATURE_RAID_5_WRITE_BYPASS, 7852 .feature_status = pqi_ctrl_update_feature_flags, 7853 }, 7854 { 7855 .feature_name = "RAID 6 Write Bypass", 7856 .feature_bit = PQI_FIRMWARE_FEATURE_RAID_6_WRITE_BYPASS, 7857 .feature_status = pqi_ctrl_update_feature_flags, 7858 }, 7859 { 7860 .feature_name = "New Soft Reset Handshake", 7861 .feature_bit = PQI_FIRMWARE_FEATURE_SOFT_RESET_HANDSHAKE, 7862 .feature_status = pqi_ctrl_update_feature_flags, 7863 }, 7864 { 7865 .feature_name = "RAID IU Timeout", 7866 .feature_bit = PQI_FIRMWARE_FEATURE_RAID_IU_TIMEOUT, 7867 .feature_status = pqi_ctrl_update_feature_flags, 7868 }, 7869 { 7870 .feature_name = "TMF IU Timeout", 7871 .feature_bit = PQI_FIRMWARE_FEATURE_TMF_IU_TIMEOUT, 7872 .feature_status = pqi_ctrl_update_feature_flags, 7873 }, 7874 { 7875 .feature_name = "RAID Bypass on encrypted logical volumes on NVMe", 7876 .feature_bit = PQI_FIRMWARE_FEATURE_RAID_BYPASS_ON_ENCRYPTED_NVME, 7877 .feature_status = pqi_firmware_feature_status, 7878 }, 7879 { 7880 .feature_name = "Firmware Triage", 7881 .feature_bit = PQI_FIRMWARE_FEATURE_FW_TRIAGE, 7882 .feature_status = pqi_ctrl_update_feature_flags, 7883 }, 7884 { 7885 .feature_name = "RPL Extended Formats 4 and 5", 7886 .feature_bit = PQI_FIRMWARE_FEATURE_RPL_EXTENDED_FORMAT_4_5, 7887 .feature_status = pqi_ctrl_update_feature_flags, 7888 }, 7889 { 7890 .feature_name = "Multi-LUN Target", 7891 .feature_bit = PQI_FIRMWARE_FEATURE_MULTI_LUN_DEVICE_SUPPORT, 7892 .feature_status = pqi_ctrl_update_feature_flags, 7893 }, 7894 }; 7895 7896 static void pqi_process_firmware_features( 7897 struct pqi_config_table_section_info *section_info) 7898 { 7899 int rc; 7900 struct pqi_ctrl_info *ctrl_info; 7901 struct pqi_config_table_firmware_features *firmware_features; 7902 void __iomem *firmware_features_iomem_addr; 7903 unsigned int i; 7904 unsigned int num_features_supported; 7905 7906 ctrl_info = section_info->ctrl_info; 7907 firmware_features = section_info->section; 7908 firmware_features_iomem_addr = section_info->section_iomem_addr; 7909 7910 for (i = 0, num_features_supported = 0; 7911 i < ARRAY_SIZE(pqi_firmware_features); i++) { 7912 if (pqi_is_firmware_feature_supported(firmware_features, 7913 pqi_firmware_features[i].feature_bit)) { 7914 pqi_firmware_features[i].supported = true; 7915 num_features_supported++; 7916 } else { 7917 pqi_firmware_feature_update(ctrl_info, 7918 &pqi_firmware_features[i]); 7919 } 7920 } 7921 7922 if (num_features_supported == 0) 7923 return; 7924 7925 for (i = 0; i < ARRAY_SIZE(pqi_firmware_features); i++) { 7926 if (!pqi_firmware_features[i].supported) 7927 continue; 7928 pqi_request_firmware_feature(firmware_features, 7929 pqi_firmware_features[i].feature_bit); 7930 } 7931 7932 rc = pqi_enable_firmware_features(ctrl_info, firmware_features, 7933 firmware_features_iomem_addr); 7934 if (rc) { 7935 dev_err(&ctrl_info->pci_dev->dev, 7936 "failed to enable firmware features in PQI configuration table\n"); 7937 for (i = 0; i < ARRAY_SIZE(pqi_firmware_features); i++) { 7938 if (!pqi_firmware_features[i].supported) 7939 continue; 7940 pqi_firmware_feature_update(ctrl_info, 7941 &pqi_firmware_features[i]); 7942 } 7943 return; 7944 } 7945 7946 for (i = 0; i < ARRAY_SIZE(pqi_firmware_features); i++) { 7947 if (!pqi_firmware_features[i].supported) 7948 continue; 7949 if (pqi_is_firmware_feature_enabled(firmware_features, 7950 firmware_features_iomem_addr, 7951 pqi_firmware_features[i].feature_bit)) { 7952 pqi_firmware_features[i].enabled = true; 7953 } 7954 pqi_firmware_feature_update(ctrl_info, 7955 &pqi_firmware_features[i]); 7956 } 7957 } 7958 7959 static void pqi_init_firmware_features(void) 7960 { 7961 unsigned int i; 7962 7963 for (i = 0; i < ARRAY_SIZE(pqi_firmware_features); i++) { 7964 pqi_firmware_features[i].supported = false; 7965 pqi_firmware_features[i].enabled = false; 7966 } 7967 } 7968 7969 static void pqi_process_firmware_features_section( 7970 struct pqi_config_table_section_info *section_info) 7971 { 7972 mutex_lock(&pqi_firmware_features_mutex); 7973 pqi_init_firmware_features(); 7974 pqi_process_firmware_features(section_info); 7975 mutex_unlock(&pqi_firmware_features_mutex); 7976 } 7977 7978 /* 7979 * Reset all controller settings that can be initialized during the processing 7980 * of the PQI Configuration Table. 7981 */ 7982 7983 static void pqi_ctrl_reset_config(struct pqi_ctrl_info *ctrl_info) 7984 { 7985 ctrl_info->heartbeat_counter = NULL; 7986 ctrl_info->soft_reset_status = NULL; 7987 ctrl_info->soft_reset_handshake_supported = false; 7988 ctrl_info->enable_r1_writes = false; 7989 ctrl_info->enable_r5_writes = false; 7990 ctrl_info->enable_r6_writes = false; 7991 ctrl_info->raid_iu_timeout_supported = false; 7992 ctrl_info->tmf_iu_timeout_supported = false; 7993 ctrl_info->firmware_triage_supported = false; 7994 ctrl_info->rpl_extended_format_4_5_supported = false; 7995 ctrl_info->multi_lun_device_supported = false; 7996 } 7997 7998 static int pqi_process_config_table(struct pqi_ctrl_info *ctrl_info) 7999 { 8000 u32 table_length; 8001 u32 section_offset; 8002 bool firmware_feature_section_present; 8003 void __iomem *table_iomem_addr; 8004 struct pqi_config_table *config_table; 8005 struct pqi_config_table_section_header *section; 8006 struct pqi_config_table_section_info section_info; 8007 struct pqi_config_table_section_info feature_section_info = {0}; 8008 8009 table_length = ctrl_info->config_table_length; 8010 if (table_length == 0) 8011 return 0; 8012 8013 config_table = kmalloc(table_length, GFP_KERNEL); 8014 if (!config_table) { 8015 dev_err(&ctrl_info->pci_dev->dev, 8016 "failed to allocate memory for PQI configuration table\n"); 8017 return -ENOMEM; 8018 } 8019 8020 /* 8021 * Copy the config table contents from I/O memory space into the 8022 * temporary buffer. 8023 */ 8024 table_iomem_addr = ctrl_info->iomem_base + ctrl_info->config_table_offset; 8025 memcpy_fromio(config_table, table_iomem_addr, table_length); 8026 8027 firmware_feature_section_present = false; 8028 section_info.ctrl_info = ctrl_info; 8029 section_offset = get_unaligned_le32(&config_table->first_section_offset); 8030 8031 while (section_offset) { 8032 section = (void *)config_table + section_offset; 8033 8034 section_info.section = section; 8035 section_info.section_offset = section_offset; 8036 section_info.section_iomem_addr = table_iomem_addr + section_offset; 8037 8038 switch (get_unaligned_le16(§ion->section_id)) { 8039 case PQI_CONFIG_TABLE_SECTION_FIRMWARE_FEATURES: 8040 firmware_feature_section_present = true; 8041 feature_section_info = section_info; 8042 break; 8043 case PQI_CONFIG_TABLE_SECTION_HEARTBEAT: 8044 if (pqi_disable_heartbeat) 8045 dev_warn(&ctrl_info->pci_dev->dev, 8046 "heartbeat disabled by module parameter\n"); 8047 else 8048 ctrl_info->heartbeat_counter = 8049 table_iomem_addr + 8050 section_offset + 8051 offsetof(struct pqi_config_table_heartbeat, 8052 heartbeat_counter); 8053 break; 8054 case PQI_CONFIG_TABLE_SECTION_SOFT_RESET: 8055 ctrl_info->soft_reset_status = 8056 table_iomem_addr + 8057 section_offset + 8058 offsetof(struct pqi_config_table_soft_reset, 8059 soft_reset_status); 8060 break; 8061 } 8062 8063 section_offset = get_unaligned_le16(§ion->next_section_offset); 8064 } 8065 8066 /* 8067 * We process the firmware feature section after all other sections 8068 * have been processed so that the feature bit callbacks can take 8069 * into account the settings configured by other sections. 8070 */ 8071 if (firmware_feature_section_present) 8072 pqi_process_firmware_features_section(&feature_section_info); 8073 8074 kfree(config_table); 8075 8076 return 0; 8077 } 8078 8079 /* Switches the controller from PQI mode back into SIS mode. */ 8080 8081 static int pqi_revert_to_sis_mode(struct pqi_ctrl_info *ctrl_info) 8082 { 8083 int rc; 8084 8085 pqi_change_irq_mode(ctrl_info, IRQ_MODE_NONE); 8086 rc = pqi_reset(ctrl_info); 8087 if (rc) 8088 return rc; 8089 rc = sis_reenable_sis_mode(ctrl_info); 8090 if (rc) { 8091 dev_err(&ctrl_info->pci_dev->dev, 8092 "re-enabling SIS mode failed with error %d\n", rc); 8093 return rc; 8094 } 8095 pqi_save_ctrl_mode(ctrl_info, SIS_MODE); 8096 8097 return 0; 8098 } 8099 8100 /* 8101 * If the controller isn't already in SIS mode, this function forces it into 8102 * SIS mode. 8103 */ 8104 8105 static int pqi_force_sis_mode(struct pqi_ctrl_info *ctrl_info) 8106 { 8107 if (!sis_is_firmware_running(ctrl_info)) 8108 return -ENXIO; 8109 8110 if (pqi_get_ctrl_mode(ctrl_info) == SIS_MODE) 8111 return 0; 8112 8113 if (sis_is_kernel_up(ctrl_info)) { 8114 pqi_save_ctrl_mode(ctrl_info, SIS_MODE); 8115 return 0; 8116 } 8117 8118 return pqi_revert_to_sis_mode(ctrl_info); 8119 } 8120 8121 static void pqi_perform_lockup_action(void) 8122 { 8123 switch (pqi_lockup_action) { 8124 case PANIC: 8125 panic("FATAL: Smart Family Controller lockup detected"); 8126 break; 8127 case REBOOT: 8128 emergency_restart(); 8129 break; 8130 case NONE: 8131 default: 8132 break; 8133 } 8134 } 8135 8136 static int pqi_ctrl_init(struct pqi_ctrl_info *ctrl_info) 8137 { 8138 int rc; 8139 u32 product_id; 8140 8141 if (reset_devices) { 8142 if (pqi_is_fw_triage_supported(ctrl_info)) { 8143 rc = sis_wait_for_fw_triage_completion(ctrl_info); 8144 if (rc) 8145 return rc; 8146 } 8147 sis_soft_reset(ctrl_info); 8148 ssleep(PQI_POST_RESET_DELAY_SECS); 8149 } else { 8150 rc = pqi_force_sis_mode(ctrl_info); 8151 if (rc) 8152 return rc; 8153 } 8154 8155 /* 8156 * Wait until the controller is ready to start accepting SIS 8157 * commands. 8158 */ 8159 rc = sis_wait_for_ctrl_ready(ctrl_info); 8160 if (rc) { 8161 if (reset_devices) { 8162 dev_err(&ctrl_info->pci_dev->dev, 8163 "kdump init failed with error %d\n", rc); 8164 pqi_lockup_action = REBOOT; 8165 pqi_perform_lockup_action(); 8166 } 8167 return rc; 8168 } 8169 8170 /* 8171 * Get the controller properties. This allows us to determine 8172 * whether or not it supports PQI mode. 8173 */ 8174 rc = sis_get_ctrl_properties(ctrl_info); 8175 if (rc) { 8176 dev_err(&ctrl_info->pci_dev->dev, 8177 "error obtaining controller properties\n"); 8178 return rc; 8179 } 8180 8181 rc = sis_get_pqi_capabilities(ctrl_info); 8182 if (rc) { 8183 dev_err(&ctrl_info->pci_dev->dev, 8184 "error obtaining controller capabilities\n"); 8185 return rc; 8186 } 8187 8188 product_id = sis_get_product_id(ctrl_info); 8189 ctrl_info->product_id = (u8)product_id; 8190 ctrl_info->product_revision = (u8)(product_id >> 8); 8191 8192 if (reset_devices) { 8193 if (ctrl_info->max_outstanding_requests > 8194 PQI_MAX_OUTSTANDING_REQUESTS_KDUMP) 8195 ctrl_info->max_outstanding_requests = 8196 PQI_MAX_OUTSTANDING_REQUESTS_KDUMP; 8197 } else { 8198 if (ctrl_info->max_outstanding_requests > 8199 PQI_MAX_OUTSTANDING_REQUESTS) 8200 ctrl_info->max_outstanding_requests = 8201 PQI_MAX_OUTSTANDING_REQUESTS; 8202 } 8203 8204 pqi_calculate_io_resources(ctrl_info); 8205 8206 rc = pqi_alloc_error_buffer(ctrl_info); 8207 if (rc) { 8208 dev_err(&ctrl_info->pci_dev->dev, 8209 "failed to allocate PQI error buffer\n"); 8210 return rc; 8211 } 8212 8213 /* 8214 * If the function we are about to call succeeds, the 8215 * controller will transition from legacy SIS mode 8216 * into PQI mode. 8217 */ 8218 rc = sis_init_base_struct_addr(ctrl_info); 8219 if (rc) { 8220 dev_err(&ctrl_info->pci_dev->dev, 8221 "error initializing PQI mode\n"); 8222 return rc; 8223 } 8224 8225 /* Wait for the controller to complete the SIS -> PQI transition. */ 8226 rc = pqi_wait_for_pqi_mode_ready(ctrl_info); 8227 if (rc) { 8228 dev_err(&ctrl_info->pci_dev->dev, 8229 "transition to PQI mode failed\n"); 8230 return rc; 8231 } 8232 8233 /* From here on, we are running in PQI mode. */ 8234 ctrl_info->pqi_mode_enabled = true; 8235 pqi_save_ctrl_mode(ctrl_info, PQI_MODE); 8236 8237 rc = pqi_alloc_admin_queues(ctrl_info); 8238 if (rc) { 8239 dev_err(&ctrl_info->pci_dev->dev, 8240 "failed to allocate admin queues\n"); 8241 return rc; 8242 } 8243 8244 rc = pqi_create_admin_queues(ctrl_info); 8245 if (rc) { 8246 dev_err(&ctrl_info->pci_dev->dev, 8247 "error creating admin queues\n"); 8248 return rc; 8249 } 8250 8251 rc = pqi_report_device_capability(ctrl_info); 8252 if (rc) { 8253 dev_err(&ctrl_info->pci_dev->dev, 8254 "obtaining device capability failed\n"); 8255 return rc; 8256 } 8257 8258 rc = pqi_validate_device_capability(ctrl_info); 8259 if (rc) 8260 return rc; 8261 8262 pqi_calculate_queue_resources(ctrl_info); 8263 8264 rc = pqi_enable_msix_interrupts(ctrl_info); 8265 if (rc) 8266 return rc; 8267 8268 if (ctrl_info->num_msix_vectors_enabled < ctrl_info->num_queue_groups) { 8269 ctrl_info->max_msix_vectors = 8270 ctrl_info->num_msix_vectors_enabled; 8271 pqi_calculate_queue_resources(ctrl_info); 8272 } 8273 8274 rc = pqi_alloc_io_resources(ctrl_info); 8275 if (rc) 8276 return rc; 8277 8278 rc = pqi_alloc_operational_queues(ctrl_info); 8279 if (rc) { 8280 dev_err(&ctrl_info->pci_dev->dev, 8281 "failed to allocate operational queues\n"); 8282 return rc; 8283 } 8284 8285 pqi_init_operational_queues(ctrl_info); 8286 8287 rc = pqi_create_queues(ctrl_info); 8288 if (rc) 8289 return rc; 8290 8291 rc = pqi_request_irqs(ctrl_info); 8292 if (rc) 8293 return rc; 8294 8295 pqi_change_irq_mode(ctrl_info, IRQ_MODE_MSIX); 8296 8297 ctrl_info->controller_online = true; 8298 8299 rc = pqi_process_config_table(ctrl_info); 8300 if (rc) 8301 return rc; 8302 8303 pqi_start_heartbeat_timer(ctrl_info); 8304 8305 if (ctrl_info->enable_r5_writes || ctrl_info->enable_r6_writes) { 8306 rc = pqi_get_advanced_raid_bypass_config(ctrl_info); 8307 if (rc) { /* Supported features not returned correctly. */ 8308 dev_err(&ctrl_info->pci_dev->dev, 8309 "error obtaining advanced RAID bypass configuration\n"); 8310 return rc; 8311 } 8312 ctrl_info->ciss_report_log_flags |= 8313 CISS_REPORT_LOG_FLAG_DRIVE_TYPE_MIX; 8314 } 8315 8316 rc = pqi_enable_events(ctrl_info); 8317 if (rc) { 8318 dev_err(&ctrl_info->pci_dev->dev, 8319 "error enabling events\n"); 8320 return rc; 8321 } 8322 8323 /* Register with the SCSI subsystem. */ 8324 rc = pqi_register_scsi(ctrl_info); 8325 if (rc) 8326 return rc; 8327 8328 rc = pqi_get_ctrl_product_details(ctrl_info); 8329 if (rc) { 8330 dev_err(&ctrl_info->pci_dev->dev, 8331 "error obtaining product details\n"); 8332 return rc; 8333 } 8334 8335 rc = pqi_get_ctrl_serial_number(ctrl_info); 8336 if (rc) { 8337 dev_err(&ctrl_info->pci_dev->dev, 8338 "error obtaining ctrl serial number\n"); 8339 return rc; 8340 } 8341 8342 rc = pqi_set_diag_rescan(ctrl_info); 8343 if (rc) { 8344 dev_err(&ctrl_info->pci_dev->dev, 8345 "error enabling multi-lun rescan\n"); 8346 return rc; 8347 } 8348 8349 rc = pqi_write_driver_version_to_host_wellness(ctrl_info); 8350 if (rc) { 8351 dev_err(&ctrl_info->pci_dev->dev, 8352 "error updating host wellness\n"); 8353 return rc; 8354 } 8355 8356 pqi_schedule_update_time_worker(ctrl_info); 8357 8358 pqi_scan_scsi_devices(ctrl_info); 8359 8360 return 0; 8361 } 8362 8363 static void pqi_reinit_queues(struct pqi_ctrl_info *ctrl_info) 8364 { 8365 unsigned int i; 8366 struct pqi_admin_queues *admin_queues; 8367 struct pqi_event_queue *event_queue; 8368 8369 admin_queues = &ctrl_info->admin_queues; 8370 admin_queues->iq_pi_copy = 0; 8371 admin_queues->oq_ci_copy = 0; 8372 writel(0, admin_queues->oq_pi); 8373 8374 for (i = 0; i < ctrl_info->num_queue_groups; i++) { 8375 ctrl_info->queue_groups[i].iq_pi_copy[RAID_PATH] = 0; 8376 ctrl_info->queue_groups[i].iq_pi_copy[AIO_PATH] = 0; 8377 ctrl_info->queue_groups[i].oq_ci_copy = 0; 8378 8379 writel(0, ctrl_info->queue_groups[i].iq_ci[RAID_PATH]); 8380 writel(0, ctrl_info->queue_groups[i].iq_ci[AIO_PATH]); 8381 writel(0, ctrl_info->queue_groups[i].oq_pi); 8382 } 8383 8384 event_queue = &ctrl_info->event_queue; 8385 writel(0, event_queue->oq_pi); 8386 event_queue->oq_ci_copy = 0; 8387 } 8388 8389 static int pqi_ctrl_init_resume(struct pqi_ctrl_info *ctrl_info) 8390 { 8391 int rc; 8392 8393 rc = pqi_force_sis_mode(ctrl_info); 8394 if (rc) 8395 return rc; 8396 8397 /* 8398 * Wait until the controller is ready to start accepting SIS 8399 * commands. 8400 */ 8401 rc = sis_wait_for_ctrl_ready_resume(ctrl_info); 8402 if (rc) 8403 return rc; 8404 8405 /* 8406 * Get the controller properties. This allows us to determine 8407 * whether or not it supports PQI mode. 8408 */ 8409 rc = sis_get_ctrl_properties(ctrl_info); 8410 if (rc) { 8411 dev_err(&ctrl_info->pci_dev->dev, 8412 "error obtaining controller properties\n"); 8413 return rc; 8414 } 8415 8416 rc = sis_get_pqi_capabilities(ctrl_info); 8417 if (rc) { 8418 dev_err(&ctrl_info->pci_dev->dev, 8419 "error obtaining controller capabilities\n"); 8420 return rc; 8421 } 8422 8423 /* 8424 * If the function we are about to call succeeds, the 8425 * controller will transition from legacy SIS mode 8426 * into PQI mode. 8427 */ 8428 rc = sis_init_base_struct_addr(ctrl_info); 8429 if (rc) { 8430 dev_err(&ctrl_info->pci_dev->dev, 8431 "error initializing PQI mode\n"); 8432 return rc; 8433 } 8434 8435 /* Wait for the controller to complete the SIS -> PQI transition. */ 8436 rc = pqi_wait_for_pqi_mode_ready(ctrl_info); 8437 if (rc) { 8438 dev_err(&ctrl_info->pci_dev->dev, 8439 "transition to PQI mode failed\n"); 8440 return rc; 8441 } 8442 8443 /* From here on, we are running in PQI mode. */ 8444 ctrl_info->pqi_mode_enabled = true; 8445 pqi_save_ctrl_mode(ctrl_info, PQI_MODE); 8446 8447 pqi_reinit_queues(ctrl_info); 8448 8449 rc = pqi_create_admin_queues(ctrl_info); 8450 if (rc) { 8451 dev_err(&ctrl_info->pci_dev->dev, 8452 "error creating admin queues\n"); 8453 return rc; 8454 } 8455 8456 rc = pqi_create_queues(ctrl_info); 8457 if (rc) 8458 return rc; 8459 8460 pqi_change_irq_mode(ctrl_info, IRQ_MODE_MSIX); 8461 8462 ctrl_info->controller_online = true; 8463 pqi_ctrl_unblock_requests(ctrl_info); 8464 8465 pqi_ctrl_reset_config(ctrl_info); 8466 8467 rc = pqi_process_config_table(ctrl_info); 8468 if (rc) 8469 return rc; 8470 8471 pqi_start_heartbeat_timer(ctrl_info); 8472 8473 if (ctrl_info->enable_r5_writes || ctrl_info->enable_r6_writes) { 8474 rc = pqi_get_advanced_raid_bypass_config(ctrl_info); 8475 if (rc) { 8476 dev_err(&ctrl_info->pci_dev->dev, 8477 "error obtaining advanced RAID bypass configuration\n"); 8478 return rc; 8479 } 8480 ctrl_info->ciss_report_log_flags |= 8481 CISS_REPORT_LOG_FLAG_DRIVE_TYPE_MIX; 8482 } 8483 8484 rc = pqi_enable_events(ctrl_info); 8485 if (rc) { 8486 dev_err(&ctrl_info->pci_dev->dev, 8487 "error enabling events\n"); 8488 return rc; 8489 } 8490 8491 rc = pqi_get_ctrl_product_details(ctrl_info); 8492 if (rc) { 8493 dev_err(&ctrl_info->pci_dev->dev, 8494 "error obtaining product details\n"); 8495 return rc; 8496 } 8497 8498 rc = pqi_set_diag_rescan(ctrl_info); 8499 if (rc) { 8500 dev_err(&ctrl_info->pci_dev->dev, 8501 "error enabling multi-lun rescan\n"); 8502 return rc; 8503 } 8504 8505 rc = pqi_write_driver_version_to_host_wellness(ctrl_info); 8506 if (rc) { 8507 dev_err(&ctrl_info->pci_dev->dev, 8508 "error updating host wellness\n"); 8509 return rc; 8510 } 8511 8512 if (pqi_ofa_in_progress(ctrl_info)) 8513 pqi_ctrl_unblock_scan(ctrl_info); 8514 8515 pqi_scan_scsi_devices(ctrl_info); 8516 8517 return 0; 8518 } 8519 8520 static inline int pqi_set_pcie_completion_timeout(struct pci_dev *pci_dev, u16 timeout) 8521 { 8522 int rc; 8523 8524 rc = pcie_capability_clear_and_set_word(pci_dev, PCI_EXP_DEVCTL2, 8525 PCI_EXP_DEVCTL2_COMP_TIMEOUT, timeout); 8526 8527 return pcibios_err_to_errno(rc); 8528 } 8529 8530 static int pqi_pci_init(struct pqi_ctrl_info *ctrl_info) 8531 { 8532 int rc; 8533 u64 mask; 8534 8535 rc = pci_enable_device(ctrl_info->pci_dev); 8536 if (rc) { 8537 dev_err(&ctrl_info->pci_dev->dev, 8538 "failed to enable PCI device\n"); 8539 return rc; 8540 } 8541 8542 if (sizeof(dma_addr_t) > 4) 8543 mask = DMA_BIT_MASK(64); 8544 else 8545 mask = DMA_BIT_MASK(32); 8546 8547 rc = dma_set_mask_and_coherent(&ctrl_info->pci_dev->dev, mask); 8548 if (rc) { 8549 dev_err(&ctrl_info->pci_dev->dev, "failed to set DMA mask\n"); 8550 goto disable_device; 8551 } 8552 8553 rc = pci_request_regions(ctrl_info->pci_dev, DRIVER_NAME_SHORT); 8554 if (rc) { 8555 dev_err(&ctrl_info->pci_dev->dev, 8556 "failed to obtain PCI resources\n"); 8557 goto disable_device; 8558 } 8559 8560 ctrl_info->iomem_base = ioremap(pci_resource_start( 8561 ctrl_info->pci_dev, 0), 8562 sizeof(struct pqi_ctrl_registers)); 8563 if (!ctrl_info->iomem_base) { 8564 dev_err(&ctrl_info->pci_dev->dev, 8565 "failed to map memory for controller registers\n"); 8566 rc = -ENOMEM; 8567 goto release_regions; 8568 } 8569 8570 #define PCI_EXP_COMP_TIMEOUT_65_TO_210_MS 0x6 8571 8572 /* Increase the PCIe completion timeout. */ 8573 rc = pqi_set_pcie_completion_timeout(ctrl_info->pci_dev, 8574 PCI_EXP_COMP_TIMEOUT_65_TO_210_MS); 8575 if (rc) { 8576 dev_err(&ctrl_info->pci_dev->dev, 8577 "failed to set PCIe completion timeout\n"); 8578 goto release_regions; 8579 } 8580 8581 /* Enable bus mastering. */ 8582 pci_set_master(ctrl_info->pci_dev); 8583 8584 ctrl_info->registers = ctrl_info->iomem_base; 8585 ctrl_info->pqi_registers = &ctrl_info->registers->pqi_registers; 8586 8587 pci_set_drvdata(ctrl_info->pci_dev, ctrl_info); 8588 8589 return 0; 8590 8591 release_regions: 8592 pci_release_regions(ctrl_info->pci_dev); 8593 disable_device: 8594 pci_disable_device(ctrl_info->pci_dev); 8595 8596 return rc; 8597 } 8598 8599 static void pqi_cleanup_pci_init(struct pqi_ctrl_info *ctrl_info) 8600 { 8601 iounmap(ctrl_info->iomem_base); 8602 pci_release_regions(ctrl_info->pci_dev); 8603 if (pci_is_enabled(ctrl_info->pci_dev)) 8604 pci_disable_device(ctrl_info->pci_dev); 8605 pci_set_drvdata(ctrl_info->pci_dev, NULL); 8606 } 8607 8608 static struct pqi_ctrl_info *pqi_alloc_ctrl_info(int numa_node) 8609 { 8610 struct pqi_ctrl_info *ctrl_info; 8611 8612 ctrl_info = kzalloc_node(sizeof(struct pqi_ctrl_info), 8613 GFP_KERNEL, numa_node); 8614 if (!ctrl_info) 8615 return NULL; 8616 8617 mutex_init(&ctrl_info->scan_mutex); 8618 mutex_init(&ctrl_info->lun_reset_mutex); 8619 mutex_init(&ctrl_info->ofa_mutex); 8620 8621 INIT_LIST_HEAD(&ctrl_info->scsi_device_list); 8622 spin_lock_init(&ctrl_info->scsi_device_list_lock); 8623 8624 INIT_WORK(&ctrl_info->event_work, pqi_event_worker); 8625 atomic_set(&ctrl_info->num_interrupts, 0); 8626 8627 INIT_DELAYED_WORK(&ctrl_info->rescan_work, pqi_rescan_worker); 8628 INIT_DELAYED_WORK(&ctrl_info->update_time_work, pqi_update_time_worker); 8629 8630 timer_setup(&ctrl_info->heartbeat_timer, pqi_heartbeat_timer_handler, 0); 8631 INIT_WORK(&ctrl_info->ctrl_offline_work, pqi_ctrl_offline_worker); 8632 8633 INIT_WORK(&ctrl_info->ofa_memory_alloc_work, pqi_ofa_memory_alloc_worker); 8634 INIT_WORK(&ctrl_info->ofa_quiesce_work, pqi_ofa_quiesce_worker); 8635 8636 sema_init(&ctrl_info->sync_request_sem, 8637 PQI_RESERVED_IO_SLOTS_SYNCHRONOUS_REQUESTS); 8638 init_waitqueue_head(&ctrl_info->block_requests_wait); 8639 8640 ctrl_info->ctrl_id = atomic_inc_return(&pqi_controller_count) - 1; 8641 ctrl_info->irq_mode = IRQ_MODE_NONE; 8642 ctrl_info->max_msix_vectors = PQI_MAX_MSIX_VECTORS; 8643 8644 ctrl_info->ciss_report_log_flags = CISS_REPORT_LOG_FLAG_UNIQUE_LUN_ID; 8645 ctrl_info->max_transfer_encrypted_sas_sata = 8646 PQI_DEFAULT_MAX_TRANSFER_ENCRYPTED_SAS_SATA; 8647 ctrl_info->max_transfer_encrypted_nvme = 8648 PQI_DEFAULT_MAX_TRANSFER_ENCRYPTED_NVME; 8649 ctrl_info->max_write_raid_5_6 = PQI_DEFAULT_MAX_WRITE_RAID_5_6; 8650 ctrl_info->max_write_raid_1_10_2drive = ~0; 8651 ctrl_info->max_write_raid_1_10_3drive = ~0; 8652 ctrl_info->disable_managed_interrupts = pqi_disable_managed_interrupts; 8653 8654 return ctrl_info; 8655 } 8656 8657 static inline void pqi_free_ctrl_info(struct pqi_ctrl_info *ctrl_info) 8658 { 8659 kfree(ctrl_info); 8660 } 8661 8662 static void pqi_free_interrupts(struct pqi_ctrl_info *ctrl_info) 8663 { 8664 pqi_free_irqs(ctrl_info); 8665 pqi_disable_msix_interrupts(ctrl_info); 8666 } 8667 8668 static void pqi_free_ctrl_resources(struct pqi_ctrl_info *ctrl_info) 8669 { 8670 pqi_free_interrupts(ctrl_info); 8671 if (ctrl_info->queue_memory_base) 8672 dma_free_coherent(&ctrl_info->pci_dev->dev, 8673 ctrl_info->queue_memory_length, 8674 ctrl_info->queue_memory_base, 8675 ctrl_info->queue_memory_base_dma_handle); 8676 if (ctrl_info->admin_queue_memory_base) 8677 dma_free_coherent(&ctrl_info->pci_dev->dev, 8678 ctrl_info->admin_queue_memory_length, 8679 ctrl_info->admin_queue_memory_base, 8680 ctrl_info->admin_queue_memory_base_dma_handle); 8681 pqi_free_all_io_requests(ctrl_info); 8682 if (ctrl_info->error_buffer) 8683 dma_free_coherent(&ctrl_info->pci_dev->dev, 8684 ctrl_info->error_buffer_length, 8685 ctrl_info->error_buffer, 8686 ctrl_info->error_buffer_dma_handle); 8687 if (ctrl_info->iomem_base) 8688 pqi_cleanup_pci_init(ctrl_info); 8689 pqi_free_ctrl_info(ctrl_info); 8690 } 8691 8692 static void pqi_remove_ctrl(struct pqi_ctrl_info *ctrl_info) 8693 { 8694 ctrl_info->controller_online = false; 8695 pqi_stop_heartbeat_timer(ctrl_info); 8696 pqi_ctrl_block_requests(ctrl_info); 8697 pqi_cancel_rescan_worker(ctrl_info); 8698 pqi_cancel_update_time_worker(ctrl_info); 8699 if (ctrl_info->ctrl_removal_state == PQI_CTRL_SURPRISE_REMOVAL) { 8700 pqi_fail_all_outstanding_requests(ctrl_info); 8701 ctrl_info->pqi_mode_enabled = false; 8702 } 8703 pqi_unregister_scsi(ctrl_info); 8704 if (ctrl_info->pqi_mode_enabled) 8705 pqi_revert_to_sis_mode(ctrl_info); 8706 pqi_free_ctrl_resources(ctrl_info); 8707 } 8708 8709 static void pqi_ofa_ctrl_quiesce(struct pqi_ctrl_info *ctrl_info) 8710 { 8711 pqi_ctrl_block_scan(ctrl_info); 8712 pqi_scsi_block_requests(ctrl_info); 8713 pqi_ctrl_block_device_reset(ctrl_info); 8714 pqi_ctrl_block_requests(ctrl_info); 8715 pqi_ctrl_wait_until_quiesced(ctrl_info); 8716 pqi_stop_heartbeat_timer(ctrl_info); 8717 } 8718 8719 static void pqi_ofa_ctrl_unquiesce(struct pqi_ctrl_info *ctrl_info) 8720 { 8721 pqi_start_heartbeat_timer(ctrl_info); 8722 pqi_ctrl_unblock_requests(ctrl_info); 8723 pqi_ctrl_unblock_device_reset(ctrl_info); 8724 pqi_scsi_unblock_requests(ctrl_info); 8725 pqi_ctrl_unblock_scan(ctrl_info); 8726 } 8727 8728 static int pqi_ofa_alloc_mem(struct pqi_ctrl_info *ctrl_info, u32 total_size, u32 chunk_size) 8729 { 8730 int i; 8731 u32 sg_count; 8732 struct device *dev; 8733 struct pqi_ofa_memory *ofap; 8734 struct pqi_sg_descriptor *mem_descriptor; 8735 dma_addr_t dma_handle; 8736 8737 ofap = ctrl_info->pqi_ofa_mem_virt_addr; 8738 8739 sg_count = DIV_ROUND_UP(total_size, chunk_size); 8740 if (sg_count == 0 || sg_count > PQI_OFA_MAX_SG_DESCRIPTORS) 8741 goto out; 8742 8743 ctrl_info->pqi_ofa_chunk_virt_addr = kmalloc_array(sg_count, sizeof(void *), GFP_KERNEL); 8744 if (!ctrl_info->pqi_ofa_chunk_virt_addr) 8745 goto out; 8746 8747 dev = &ctrl_info->pci_dev->dev; 8748 8749 for (i = 0; i < sg_count; i++) { 8750 ctrl_info->pqi_ofa_chunk_virt_addr[i] = 8751 dma_alloc_coherent(dev, chunk_size, &dma_handle, GFP_KERNEL); 8752 if (!ctrl_info->pqi_ofa_chunk_virt_addr[i]) 8753 goto out_free_chunks; 8754 mem_descriptor = &ofap->sg_descriptor[i]; 8755 put_unaligned_le64((u64)dma_handle, &mem_descriptor->address); 8756 put_unaligned_le32(chunk_size, &mem_descriptor->length); 8757 } 8758 8759 put_unaligned_le32(CISS_SG_LAST, &mem_descriptor->flags); 8760 put_unaligned_le16(sg_count, &ofap->num_memory_descriptors); 8761 put_unaligned_le32(sg_count * chunk_size, &ofap->bytes_allocated); 8762 8763 return 0; 8764 8765 out_free_chunks: 8766 while (--i >= 0) { 8767 mem_descriptor = &ofap->sg_descriptor[i]; 8768 dma_free_coherent(dev, chunk_size, 8769 ctrl_info->pqi_ofa_chunk_virt_addr[i], 8770 get_unaligned_le64(&mem_descriptor->address)); 8771 } 8772 kfree(ctrl_info->pqi_ofa_chunk_virt_addr); 8773 8774 out: 8775 return -ENOMEM; 8776 } 8777 8778 static int pqi_ofa_alloc_host_buffer(struct pqi_ctrl_info *ctrl_info) 8779 { 8780 u32 total_size; 8781 u32 chunk_size; 8782 u32 min_chunk_size; 8783 8784 if (ctrl_info->ofa_bytes_requested == 0) 8785 return 0; 8786 8787 total_size = PAGE_ALIGN(ctrl_info->ofa_bytes_requested); 8788 min_chunk_size = DIV_ROUND_UP(total_size, PQI_OFA_MAX_SG_DESCRIPTORS); 8789 min_chunk_size = PAGE_ALIGN(min_chunk_size); 8790 8791 for (chunk_size = total_size; chunk_size >= min_chunk_size;) { 8792 if (pqi_ofa_alloc_mem(ctrl_info, total_size, chunk_size) == 0) 8793 return 0; 8794 chunk_size /= 2; 8795 chunk_size = PAGE_ALIGN(chunk_size); 8796 } 8797 8798 return -ENOMEM; 8799 } 8800 8801 static void pqi_ofa_setup_host_buffer(struct pqi_ctrl_info *ctrl_info) 8802 { 8803 struct device *dev; 8804 struct pqi_ofa_memory *ofap; 8805 8806 dev = &ctrl_info->pci_dev->dev; 8807 8808 ofap = dma_alloc_coherent(dev, sizeof(*ofap), 8809 &ctrl_info->pqi_ofa_mem_dma_handle, GFP_KERNEL); 8810 if (!ofap) 8811 return; 8812 8813 ctrl_info->pqi_ofa_mem_virt_addr = ofap; 8814 8815 if (pqi_ofa_alloc_host_buffer(ctrl_info) < 0) { 8816 dev_err(dev, 8817 "failed to allocate host buffer for Online Firmware Activation\n"); 8818 dma_free_coherent(dev, sizeof(*ofap), ofap, ctrl_info->pqi_ofa_mem_dma_handle); 8819 ctrl_info->pqi_ofa_mem_virt_addr = NULL; 8820 return; 8821 } 8822 8823 put_unaligned_le16(PQI_OFA_VERSION, &ofap->version); 8824 memcpy(&ofap->signature, PQI_OFA_SIGNATURE, sizeof(ofap->signature)); 8825 } 8826 8827 static void pqi_ofa_free_host_buffer(struct pqi_ctrl_info *ctrl_info) 8828 { 8829 unsigned int i; 8830 struct device *dev; 8831 struct pqi_ofa_memory *ofap; 8832 struct pqi_sg_descriptor *mem_descriptor; 8833 unsigned int num_memory_descriptors; 8834 8835 ofap = ctrl_info->pqi_ofa_mem_virt_addr; 8836 if (!ofap) 8837 return; 8838 8839 dev = &ctrl_info->pci_dev->dev; 8840 8841 if (get_unaligned_le32(&ofap->bytes_allocated) == 0) 8842 goto out; 8843 8844 mem_descriptor = ofap->sg_descriptor; 8845 num_memory_descriptors = 8846 get_unaligned_le16(&ofap->num_memory_descriptors); 8847 8848 for (i = 0; i < num_memory_descriptors; i++) { 8849 dma_free_coherent(dev, 8850 get_unaligned_le32(&mem_descriptor[i].length), 8851 ctrl_info->pqi_ofa_chunk_virt_addr[i], 8852 get_unaligned_le64(&mem_descriptor[i].address)); 8853 } 8854 kfree(ctrl_info->pqi_ofa_chunk_virt_addr); 8855 8856 out: 8857 dma_free_coherent(dev, sizeof(*ofap), ofap, 8858 ctrl_info->pqi_ofa_mem_dma_handle); 8859 ctrl_info->pqi_ofa_mem_virt_addr = NULL; 8860 } 8861 8862 static int pqi_ofa_host_memory_update(struct pqi_ctrl_info *ctrl_info) 8863 { 8864 u32 buffer_length; 8865 struct pqi_vendor_general_request request; 8866 struct pqi_ofa_memory *ofap; 8867 8868 memset(&request, 0, sizeof(request)); 8869 8870 request.header.iu_type = PQI_REQUEST_IU_VENDOR_GENERAL; 8871 put_unaligned_le16(sizeof(request) - PQI_REQUEST_HEADER_LENGTH, 8872 &request.header.iu_length); 8873 put_unaligned_le16(PQI_VENDOR_GENERAL_HOST_MEMORY_UPDATE, 8874 &request.function_code); 8875 8876 ofap = ctrl_info->pqi_ofa_mem_virt_addr; 8877 8878 if (ofap) { 8879 buffer_length = offsetof(struct pqi_ofa_memory, sg_descriptor) + 8880 get_unaligned_le16(&ofap->num_memory_descriptors) * 8881 sizeof(struct pqi_sg_descriptor); 8882 8883 put_unaligned_le64((u64)ctrl_info->pqi_ofa_mem_dma_handle, 8884 &request.data.ofa_memory_allocation.buffer_address); 8885 put_unaligned_le32(buffer_length, 8886 &request.data.ofa_memory_allocation.buffer_length); 8887 } 8888 8889 return pqi_submit_raid_request_synchronous(ctrl_info, &request.header, 0, NULL); 8890 } 8891 8892 static int pqi_ofa_ctrl_restart(struct pqi_ctrl_info *ctrl_info, unsigned int delay_secs) 8893 { 8894 ssleep(delay_secs); 8895 8896 return pqi_ctrl_init_resume(ctrl_info); 8897 } 8898 8899 static struct pqi_raid_error_info pqi_ctrl_offline_raid_error_info = { 8900 .data_out_result = PQI_DATA_IN_OUT_HARDWARE_ERROR, 8901 .status = SAM_STAT_CHECK_CONDITION, 8902 }; 8903 8904 static void pqi_fail_all_outstanding_requests(struct pqi_ctrl_info *ctrl_info) 8905 { 8906 unsigned int i; 8907 struct pqi_io_request *io_request; 8908 struct scsi_cmnd *scmd; 8909 struct scsi_device *sdev; 8910 8911 for (i = 0; i < ctrl_info->max_io_slots; i++) { 8912 io_request = &ctrl_info->io_request_pool[i]; 8913 if (atomic_read(&io_request->refcount) == 0) 8914 continue; 8915 8916 scmd = io_request->scmd; 8917 if (scmd) { 8918 sdev = scmd->device; 8919 if (!sdev || !scsi_device_online(sdev)) { 8920 pqi_free_io_request(io_request); 8921 continue; 8922 } else { 8923 set_host_byte(scmd, DID_NO_CONNECT); 8924 } 8925 } else { 8926 io_request->status = -ENXIO; 8927 io_request->error_info = 8928 &pqi_ctrl_offline_raid_error_info; 8929 } 8930 8931 io_request->io_complete_callback(io_request, 8932 io_request->context); 8933 } 8934 } 8935 8936 static void pqi_take_ctrl_offline_deferred(struct pqi_ctrl_info *ctrl_info) 8937 { 8938 pqi_perform_lockup_action(); 8939 pqi_stop_heartbeat_timer(ctrl_info); 8940 pqi_free_interrupts(ctrl_info); 8941 pqi_cancel_rescan_worker(ctrl_info); 8942 pqi_cancel_update_time_worker(ctrl_info); 8943 pqi_ctrl_wait_until_quiesced(ctrl_info); 8944 pqi_fail_all_outstanding_requests(ctrl_info); 8945 pqi_ctrl_unblock_requests(ctrl_info); 8946 } 8947 8948 static void pqi_ctrl_offline_worker(struct work_struct *work) 8949 { 8950 struct pqi_ctrl_info *ctrl_info; 8951 8952 ctrl_info = container_of(work, struct pqi_ctrl_info, ctrl_offline_work); 8953 pqi_take_ctrl_offline_deferred(ctrl_info); 8954 } 8955 8956 static void pqi_take_ctrl_offline(struct pqi_ctrl_info *ctrl_info, 8957 enum pqi_ctrl_shutdown_reason ctrl_shutdown_reason) 8958 { 8959 if (!ctrl_info->controller_online) 8960 return; 8961 8962 ctrl_info->controller_online = false; 8963 ctrl_info->pqi_mode_enabled = false; 8964 pqi_ctrl_block_requests(ctrl_info); 8965 if (!pqi_disable_ctrl_shutdown) 8966 sis_shutdown_ctrl(ctrl_info, ctrl_shutdown_reason); 8967 pci_disable_device(ctrl_info->pci_dev); 8968 dev_err(&ctrl_info->pci_dev->dev, "controller offline\n"); 8969 schedule_work(&ctrl_info->ctrl_offline_work); 8970 } 8971 8972 static void pqi_print_ctrl_info(struct pci_dev *pci_dev, 8973 const struct pci_device_id *id) 8974 { 8975 char *ctrl_description; 8976 8977 if (id->driver_data) 8978 ctrl_description = (char *)id->driver_data; 8979 else 8980 ctrl_description = "Microchip Smart Family Controller"; 8981 8982 dev_info(&pci_dev->dev, "%s found\n", ctrl_description); 8983 } 8984 8985 static int pqi_pci_probe(struct pci_dev *pci_dev, 8986 const struct pci_device_id *id) 8987 { 8988 int rc; 8989 int node; 8990 struct pqi_ctrl_info *ctrl_info; 8991 8992 pqi_print_ctrl_info(pci_dev, id); 8993 8994 if (pqi_disable_device_id_wildcards && 8995 id->subvendor == PCI_ANY_ID && 8996 id->subdevice == PCI_ANY_ID) { 8997 dev_warn(&pci_dev->dev, 8998 "controller not probed because device ID wildcards are disabled\n"); 8999 return -ENODEV; 9000 } 9001 9002 if (id->subvendor == PCI_ANY_ID || id->subdevice == PCI_ANY_ID) 9003 dev_warn(&pci_dev->dev, 9004 "controller device ID matched using wildcards\n"); 9005 9006 node = dev_to_node(&pci_dev->dev); 9007 if (node == NUMA_NO_NODE) { 9008 node = cpu_to_node(0); 9009 if (node == NUMA_NO_NODE) 9010 node = 0; 9011 set_dev_node(&pci_dev->dev, node); 9012 } 9013 9014 ctrl_info = pqi_alloc_ctrl_info(node); 9015 if (!ctrl_info) { 9016 dev_err(&pci_dev->dev, 9017 "failed to allocate controller info block\n"); 9018 return -ENOMEM; 9019 } 9020 9021 ctrl_info->pci_dev = pci_dev; 9022 9023 rc = pqi_pci_init(ctrl_info); 9024 if (rc) 9025 goto error; 9026 9027 rc = pqi_ctrl_init(ctrl_info); 9028 if (rc) 9029 goto error; 9030 9031 return 0; 9032 9033 error: 9034 pqi_remove_ctrl(ctrl_info); 9035 9036 return rc; 9037 } 9038 9039 static void pqi_pci_remove(struct pci_dev *pci_dev) 9040 { 9041 struct pqi_ctrl_info *ctrl_info; 9042 u16 vendor_id; 9043 int rc; 9044 9045 ctrl_info = pci_get_drvdata(pci_dev); 9046 if (!ctrl_info) 9047 return; 9048 9049 pci_read_config_word(ctrl_info->pci_dev, PCI_SUBSYSTEM_VENDOR_ID, &vendor_id); 9050 if (vendor_id == 0xffff) 9051 ctrl_info->ctrl_removal_state = PQI_CTRL_SURPRISE_REMOVAL; 9052 else 9053 ctrl_info->ctrl_removal_state = PQI_CTRL_GRACEFUL_REMOVAL; 9054 9055 if (ctrl_info->ctrl_removal_state == PQI_CTRL_GRACEFUL_REMOVAL) { 9056 rc = pqi_flush_cache(ctrl_info, RESTART); 9057 if (rc) 9058 dev_err(&pci_dev->dev, 9059 "unable to flush controller cache during remove\n"); 9060 } 9061 9062 pqi_remove_ctrl(ctrl_info); 9063 } 9064 9065 static void pqi_crash_if_pending_command(struct pqi_ctrl_info *ctrl_info) 9066 { 9067 unsigned int i; 9068 struct pqi_io_request *io_request; 9069 struct scsi_cmnd *scmd; 9070 9071 for (i = 0; i < ctrl_info->max_io_slots; i++) { 9072 io_request = &ctrl_info->io_request_pool[i]; 9073 if (atomic_read(&io_request->refcount) == 0) 9074 continue; 9075 scmd = io_request->scmd; 9076 WARN_ON(scmd != NULL); /* IO command from SML */ 9077 WARN_ON(scmd == NULL); /* Non-IO cmd or driver initiated*/ 9078 } 9079 } 9080 9081 static void pqi_shutdown(struct pci_dev *pci_dev) 9082 { 9083 int rc; 9084 struct pqi_ctrl_info *ctrl_info; 9085 enum bmic_flush_cache_shutdown_event shutdown_event; 9086 9087 ctrl_info = pci_get_drvdata(pci_dev); 9088 if (!ctrl_info) { 9089 dev_err(&pci_dev->dev, 9090 "cache could not be flushed\n"); 9091 return; 9092 } 9093 9094 pqi_wait_until_ofa_finished(ctrl_info); 9095 9096 pqi_scsi_block_requests(ctrl_info); 9097 pqi_ctrl_block_device_reset(ctrl_info); 9098 pqi_ctrl_block_requests(ctrl_info); 9099 pqi_ctrl_wait_until_quiesced(ctrl_info); 9100 9101 if (system_state == SYSTEM_RESTART) 9102 shutdown_event = RESTART; 9103 else 9104 shutdown_event = SHUTDOWN; 9105 9106 /* 9107 * Write all data in the controller's battery-backed cache to 9108 * storage. 9109 */ 9110 rc = pqi_flush_cache(ctrl_info, shutdown_event); 9111 if (rc) 9112 dev_err(&pci_dev->dev, 9113 "unable to flush controller cache\n"); 9114 9115 pqi_crash_if_pending_command(ctrl_info); 9116 pqi_reset(ctrl_info); 9117 } 9118 9119 static void pqi_process_lockup_action_param(void) 9120 { 9121 unsigned int i; 9122 9123 if (!pqi_lockup_action_param) 9124 return; 9125 9126 for (i = 0; i < ARRAY_SIZE(pqi_lockup_actions); i++) { 9127 if (strcmp(pqi_lockup_action_param, 9128 pqi_lockup_actions[i].name) == 0) { 9129 pqi_lockup_action = pqi_lockup_actions[i].action; 9130 return; 9131 } 9132 } 9133 9134 pr_warn("%s: invalid lockup action setting \"%s\" - supported settings: none, reboot, panic\n", 9135 DRIVER_NAME_SHORT, pqi_lockup_action_param); 9136 } 9137 9138 #define PQI_CTRL_READY_TIMEOUT_PARAM_MIN_SECS 30 9139 #define PQI_CTRL_READY_TIMEOUT_PARAM_MAX_SECS (30 * 60) 9140 9141 static void pqi_process_ctrl_ready_timeout_param(void) 9142 { 9143 if (pqi_ctrl_ready_timeout_secs == 0) 9144 return; 9145 9146 if (pqi_ctrl_ready_timeout_secs < PQI_CTRL_READY_TIMEOUT_PARAM_MIN_SECS) { 9147 pr_warn("%s: ctrl_ready_timeout parm of %u second(s) is less than minimum timeout of %d seconds - setting timeout to %d seconds\n", 9148 DRIVER_NAME_SHORT, pqi_ctrl_ready_timeout_secs, PQI_CTRL_READY_TIMEOUT_PARAM_MIN_SECS, PQI_CTRL_READY_TIMEOUT_PARAM_MIN_SECS); 9149 pqi_ctrl_ready_timeout_secs = PQI_CTRL_READY_TIMEOUT_PARAM_MIN_SECS; 9150 } else if (pqi_ctrl_ready_timeout_secs > PQI_CTRL_READY_TIMEOUT_PARAM_MAX_SECS) { 9151 pr_warn("%s: ctrl_ready_timeout parm of %u seconds is greater than maximum timeout of %d seconds - setting timeout to %d seconds\n", 9152 DRIVER_NAME_SHORT, pqi_ctrl_ready_timeout_secs, PQI_CTRL_READY_TIMEOUT_PARAM_MAX_SECS, PQI_CTRL_READY_TIMEOUT_PARAM_MAX_SECS); 9153 pqi_ctrl_ready_timeout_secs = PQI_CTRL_READY_TIMEOUT_PARAM_MAX_SECS; 9154 } 9155 9156 sis_ctrl_ready_timeout_secs = pqi_ctrl_ready_timeout_secs; 9157 } 9158 9159 static void pqi_process_module_params(void) 9160 { 9161 pqi_process_lockup_action_param(); 9162 pqi_process_ctrl_ready_timeout_param(); 9163 } 9164 9165 #if defined(CONFIG_PM) 9166 9167 static inline enum bmic_flush_cache_shutdown_event pqi_get_flush_cache_shutdown_event(struct pci_dev *pci_dev) 9168 { 9169 if (pci_dev->subsystem_vendor == PCI_VENDOR_ID_ADAPTEC2 && pci_dev->subsystem_device == 0x1304) 9170 return RESTART; 9171 9172 return SUSPEND; 9173 } 9174 9175 static int pqi_suspend_or_freeze(struct device *dev, bool suspend) 9176 { 9177 struct pci_dev *pci_dev; 9178 struct pqi_ctrl_info *ctrl_info; 9179 9180 pci_dev = to_pci_dev(dev); 9181 ctrl_info = pci_get_drvdata(pci_dev); 9182 9183 pqi_wait_until_ofa_finished(ctrl_info); 9184 9185 pqi_ctrl_block_scan(ctrl_info); 9186 pqi_scsi_block_requests(ctrl_info); 9187 pqi_ctrl_block_device_reset(ctrl_info); 9188 pqi_ctrl_block_requests(ctrl_info); 9189 pqi_ctrl_wait_until_quiesced(ctrl_info); 9190 9191 if (suspend) { 9192 enum bmic_flush_cache_shutdown_event shutdown_event; 9193 9194 shutdown_event = pqi_get_flush_cache_shutdown_event(pci_dev); 9195 pqi_flush_cache(ctrl_info, shutdown_event); 9196 } 9197 9198 pqi_stop_heartbeat_timer(ctrl_info); 9199 pqi_crash_if_pending_command(ctrl_info); 9200 pqi_free_irqs(ctrl_info); 9201 9202 ctrl_info->controller_online = false; 9203 ctrl_info->pqi_mode_enabled = false; 9204 9205 return 0; 9206 } 9207 9208 static __maybe_unused int pqi_suspend(struct device *dev) 9209 { 9210 return pqi_suspend_or_freeze(dev, true); 9211 } 9212 9213 static int pqi_resume_or_restore(struct device *dev) 9214 { 9215 int rc; 9216 struct pci_dev *pci_dev; 9217 struct pqi_ctrl_info *ctrl_info; 9218 9219 pci_dev = to_pci_dev(dev); 9220 ctrl_info = pci_get_drvdata(pci_dev); 9221 9222 rc = pqi_request_irqs(ctrl_info); 9223 if (rc) 9224 return rc; 9225 9226 pqi_ctrl_unblock_device_reset(ctrl_info); 9227 pqi_ctrl_unblock_requests(ctrl_info); 9228 pqi_scsi_unblock_requests(ctrl_info); 9229 pqi_ctrl_unblock_scan(ctrl_info); 9230 9231 ssleep(PQI_POST_RESET_DELAY_SECS); 9232 9233 return pqi_ctrl_init_resume(ctrl_info); 9234 } 9235 9236 static int pqi_freeze(struct device *dev) 9237 { 9238 return pqi_suspend_or_freeze(dev, false); 9239 } 9240 9241 static int pqi_thaw(struct device *dev) 9242 { 9243 int rc; 9244 struct pci_dev *pci_dev; 9245 struct pqi_ctrl_info *ctrl_info; 9246 9247 pci_dev = to_pci_dev(dev); 9248 ctrl_info = pci_get_drvdata(pci_dev); 9249 9250 rc = pqi_request_irqs(ctrl_info); 9251 if (rc) 9252 return rc; 9253 9254 ctrl_info->controller_online = true; 9255 ctrl_info->pqi_mode_enabled = true; 9256 9257 pqi_ctrl_unblock_device_reset(ctrl_info); 9258 pqi_ctrl_unblock_requests(ctrl_info); 9259 pqi_scsi_unblock_requests(ctrl_info); 9260 pqi_ctrl_unblock_scan(ctrl_info); 9261 9262 return 0; 9263 } 9264 9265 static int pqi_poweroff(struct device *dev) 9266 { 9267 struct pci_dev *pci_dev; 9268 struct pqi_ctrl_info *ctrl_info; 9269 enum bmic_flush_cache_shutdown_event shutdown_event; 9270 9271 pci_dev = to_pci_dev(dev); 9272 ctrl_info = pci_get_drvdata(pci_dev); 9273 9274 shutdown_event = pqi_get_flush_cache_shutdown_event(pci_dev); 9275 pqi_flush_cache(ctrl_info, shutdown_event); 9276 9277 return 0; 9278 } 9279 9280 static const struct dev_pm_ops pqi_pm_ops = { 9281 .suspend = pqi_suspend, 9282 .resume = pqi_resume_or_restore, 9283 .freeze = pqi_freeze, 9284 .thaw = pqi_thaw, 9285 .poweroff = pqi_poweroff, 9286 .restore = pqi_resume_or_restore, 9287 }; 9288 9289 #endif /* CONFIG_PM */ 9290 9291 /* Define the PCI IDs for the controllers that we support. */ 9292 static const struct pci_device_id pqi_pci_id_table[] = { 9293 { 9294 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 9295 0x105b, 0x1211) 9296 }, 9297 { 9298 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 9299 0x105b, 0x1321) 9300 }, 9301 { 9302 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 9303 0x152d, 0x8a22) 9304 }, 9305 { 9306 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 9307 0x152d, 0x8a23) 9308 }, 9309 { 9310 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 9311 0x152d, 0x8a24) 9312 }, 9313 { 9314 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 9315 0x152d, 0x8a36) 9316 }, 9317 { 9318 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 9319 0x152d, 0x8a37) 9320 }, 9321 { 9322 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 9323 0x193d, 0x1104) 9324 }, 9325 { 9326 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 9327 0x193d, 0x1105) 9328 }, 9329 { 9330 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 9331 0x193d, 0x1106) 9332 }, 9333 { 9334 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 9335 0x193d, 0x1107) 9336 }, 9337 { 9338 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 9339 0x193d, 0x1108) 9340 }, 9341 { 9342 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 9343 0x193d, 0x1109) 9344 }, 9345 { 9346 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 9347 0x193d, 0x110b) 9348 }, 9349 { 9350 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 9351 0x193d, 0x8460) 9352 }, 9353 { 9354 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 9355 0x193d, 0x8461) 9356 }, 9357 { 9358 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 9359 0x193d, 0xc460) 9360 }, 9361 { 9362 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 9363 0x193d, 0xc461) 9364 }, 9365 { 9366 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 9367 0x193d, 0xf460) 9368 }, 9369 { 9370 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 9371 0x193d, 0xf461) 9372 }, 9373 { 9374 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 9375 0x1bd4, 0x0045) 9376 }, 9377 { 9378 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 9379 0x1bd4, 0x0046) 9380 }, 9381 { 9382 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 9383 0x1bd4, 0x0047) 9384 }, 9385 { 9386 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 9387 0x1bd4, 0x0048) 9388 }, 9389 { 9390 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 9391 0x1bd4, 0x004a) 9392 }, 9393 { 9394 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 9395 0x1bd4, 0x004b) 9396 }, 9397 { 9398 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 9399 0x1bd4, 0x004c) 9400 }, 9401 { 9402 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 9403 0x1bd4, 0x004f) 9404 }, 9405 { 9406 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 9407 0x1bd4, 0x0051) 9408 }, 9409 { 9410 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 9411 0x1bd4, 0x0052) 9412 }, 9413 { 9414 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 9415 0x1bd4, 0x0053) 9416 }, 9417 { 9418 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 9419 0x1bd4, 0x0054) 9420 }, 9421 { 9422 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 9423 0x1bd4, 0x006b) 9424 }, 9425 { 9426 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 9427 0x1bd4, 0x006c) 9428 }, 9429 { 9430 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 9431 0x1bd4, 0x006d) 9432 }, 9433 { 9434 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 9435 0x1bd4, 0x006f) 9436 }, 9437 { 9438 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 9439 0x1bd4, 0x0070) 9440 }, 9441 { 9442 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 9443 0x1bd4, 0x0071) 9444 }, 9445 { 9446 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 9447 0x1bd4, 0x0072) 9448 }, 9449 { 9450 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 9451 0x1bd4, 0x0086) 9452 }, 9453 { 9454 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 9455 0x1bd4, 0x0087) 9456 }, 9457 { 9458 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 9459 0x1bd4, 0x0088) 9460 }, 9461 { 9462 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 9463 0x1bd4, 0x0089) 9464 }, 9465 { 9466 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 9467 0x19e5, 0xd227) 9468 }, 9469 { 9470 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 9471 0x19e5, 0xd228) 9472 }, 9473 { 9474 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 9475 0x19e5, 0xd229) 9476 }, 9477 { 9478 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 9479 0x19e5, 0xd22a) 9480 }, 9481 { 9482 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 9483 0x19e5, 0xd22b) 9484 }, 9485 { 9486 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 9487 0x19e5, 0xd22c) 9488 }, 9489 { 9490 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 9491 PCI_VENDOR_ID_ADAPTEC2, 0x0110) 9492 }, 9493 { 9494 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 9495 PCI_VENDOR_ID_ADAPTEC2, 0x0608) 9496 }, 9497 { 9498 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 9499 PCI_VENDOR_ID_ADAPTEC2, 0x0659) 9500 }, 9501 { 9502 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 9503 PCI_VENDOR_ID_ADAPTEC2, 0x0800) 9504 }, 9505 { 9506 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 9507 PCI_VENDOR_ID_ADAPTEC2, 0x0801) 9508 }, 9509 { 9510 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 9511 PCI_VENDOR_ID_ADAPTEC2, 0x0802) 9512 }, 9513 { 9514 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 9515 PCI_VENDOR_ID_ADAPTEC2, 0x0803) 9516 }, 9517 { 9518 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 9519 PCI_VENDOR_ID_ADAPTEC2, 0x0804) 9520 }, 9521 { 9522 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 9523 PCI_VENDOR_ID_ADAPTEC2, 0x0805) 9524 }, 9525 { 9526 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 9527 PCI_VENDOR_ID_ADAPTEC2, 0x0806) 9528 }, 9529 { 9530 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 9531 PCI_VENDOR_ID_ADAPTEC2, 0x0807) 9532 }, 9533 { 9534 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 9535 PCI_VENDOR_ID_ADAPTEC2, 0x0808) 9536 }, 9537 { 9538 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 9539 PCI_VENDOR_ID_ADAPTEC2, 0x0809) 9540 }, 9541 { 9542 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 9543 PCI_VENDOR_ID_ADAPTEC2, 0x080a) 9544 }, 9545 { 9546 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 9547 PCI_VENDOR_ID_ADAPTEC2, 0x0900) 9548 }, 9549 { 9550 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 9551 PCI_VENDOR_ID_ADAPTEC2, 0x0901) 9552 }, 9553 { 9554 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 9555 PCI_VENDOR_ID_ADAPTEC2, 0x0902) 9556 }, 9557 { 9558 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 9559 PCI_VENDOR_ID_ADAPTEC2, 0x0903) 9560 }, 9561 { 9562 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 9563 PCI_VENDOR_ID_ADAPTEC2, 0x0904) 9564 }, 9565 { 9566 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 9567 PCI_VENDOR_ID_ADAPTEC2, 0x0905) 9568 }, 9569 { 9570 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 9571 PCI_VENDOR_ID_ADAPTEC2, 0x0906) 9572 }, 9573 { 9574 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 9575 PCI_VENDOR_ID_ADAPTEC2, 0x0907) 9576 }, 9577 { 9578 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 9579 PCI_VENDOR_ID_ADAPTEC2, 0x0908) 9580 }, 9581 { 9582 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 9583 PCI_VENDOR_ID_ADAPTEC2, 0x090a) 9584 }, 9585 { 9586 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 9587 PCI_VENDOR_ID_ADAPTEC2, 0x1200) 9588 }, 9589 { 9590 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 9591 PCI_VENDOR_ID_ADAPTEC2, 0x1201) 9592 }, 9593 { 9594 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 9595 PCI_VENDOR_ID_ADAPTEC2, 0x1202) 9596 }, 9597 { 9598 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 9599 PCI_VENDOR_ID_ADAPTEC2, 0x1280) 9600 }, 9601 { 9602 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 9603 PCI_VENDOR_ID_ADAPTEC2, 0x1281) 9604 }, 9605 { 9606 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 9607 PCI_VENDOR_ID_ADAPTEC2, 0x1282) 9608 }, 9609 { 9610 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 9611 PCI_VENDOR_ID_ADAPTEC2, 0x1300) 9612 }, 9613 { 9614 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 9615 PCI_VENDOR_ID_ADAPTEC2, 0x1301) 9616 }, 9617 { 9618 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 9619 PCI_VENDOR_ID_ADAPTEC2, 0x1302) 9620 }, 9621 { 9622 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 9623 PCI_VENDOR_ID_ADAPTEC2, 0x1303) 9624 }, 9625 { 9626 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 9627 PCI_VENDOR_ID_ADAPTEC2, 0x1304) 9628 }, 9629 { 9630 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 9631 PCI_VENDOR_ID_ADAPTEC2, 0x1380) 9632 }, 9633 { 9634 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 9635 PCI_VENDOR_ID_ADAPTEC2, 0x1400) 9636 }, 9637 { 9638 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 9639 PCI_VENDOR_ID_ADAPTEC2, 0x1402) 9640 }, 9641 { 9642 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 9643 PCI_VENDOR_ID_ADAPTEC2, 0x1410) 9644 }, 9645 { 9646 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 9647 PCI_VENDOR_ID_ADAPTEC2, 0x1411) 9648 }, 9649 { 9650 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 9651 PCI_VENDOR_ID_ADAPTEC2, 0x1412) 9652 }, 9653 { 9654 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 9655 PCI_VENDOR_ID_ADAPTEC2, 0x1420) 9656 }, 9657 { 9658 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 9659 PCI_VENDOR_ID_ADAPTEC2, 0x1430) 9660 }, 9661 { 9662 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 9663 PCI_VENDOR_ID_ADAPTEC2, 0x1440) 9664 }, 9665 { 9666 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 9667 PCI_VENDOR_ID_ADAPTEC2, 0x1441) 9668 }, 9669 { 9670 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 9671 PCI_VENDOR_ID_ADAPTEC2, 0x1450) 9672 }, 9673 { 9674 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 9675 PCI_VENDOR_ID_ADAPTEC2, 0x1452) 9676 }, 9677 { 9678 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 9679 PCI_VENDOR_ID_ADAPTEC2, 0x1460) 9680 }, 9681 { 9682 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 9683 PCI_VENDOR_ID_ADAPTEC2, 0x1461) 9684 }, 9685 { 9686 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 9687 PCI_VENDOR_ID_ADAPTEC2, 0x1462) 9688 }, 9689 { 9690 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 9691 PCI_VENDOR_ID_ADAPTEC2, 0x1463) 9692 }, 9693 { 9694 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 9695 PCI_VENDOR_ID_ADAPTEC2, 0x1470) 9696 }, 9697 { 9698 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 9699 PCI_VENDOR_ID_ADAPTEC2, 0x1471) 9700 }, 9701 { 9702 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 9703 PCI_VENDOR_ID_ADAPTEC2, 0x1472) 9704 }, 9705 { 9706 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 9707 PCI_VENDOR_ID_ADAPTEC2, 0x1473) 9708 }, 9709 { 9710 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 9711 PCI_VENDOR_ID_ADAPTEC2, 0x1474) 9712 }, 9713 { 9714 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 9715 PCI_VENDOR_ID_ADAPTEC2, 0x1475) 9716 }, 9717 { 9718 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 9719 PCI_VENDOR_ID_ADAPTEC2, 0x1480) 9720 }, 9721 { 9722 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 9723 PCI_VENDOR_ID_ADAPTEC2, 0x1490) 9724 }, 9725 { 9726 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 9727 PCI_VENDOR_ID_ADAPTEC2, 0x1491) 9728 }, 9729 { 9730 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 9731 PCI_VENDOR_ID_ADAPTEC2, 0x14a0) 9732 }, 9733 { 9734 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 9735 PCI_VENDOR_ID_ADAPTEC2, 0x14a1) 9736 }, 9737 { 9738 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 9739 PCI_VENDOR_ID_ADAPTEC2, 0x14a2) 9740 }, 9741 { 9742 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 9743 PCI_VENDOR_ID_ADAPTEC2, 0x14a4) 9744 }, 9745 { 9746 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 9747 PCI_VENDOR_ID_ADAPTEC2, 0x14a5) 9748 }, 9749 { 9750 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 9751 PCI_VENDOR_ID_ADAPTEC2, 0x14a6) 9752 }, 9753 { 9754 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 9755 PCI_VENDOR_ID_ADAPTEC2, 0x14b0) 9756 }, 9757 { 9758 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 9759 PCI_VENDOR_ID_ADAPTEC2, 0x14b1) 9760 }, 9761 { 9762 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 9763 PCI_VENDOR_ID_ADAPTEC2, 0x14c0) 9764 }, 9765 { 9766 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 9767 PCI_VENDOR_ID_ADAPTEC2, 0x14c1) 9768 }, 9769 { 9770 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 9771 PCI_VENDOR_ID_ADAPTEC2, 0x14c2) 9772 }, 9773 { 9774 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 9775 PCI_VENDOR_ID_ADAPTEC2, 0x14c3) 9776 }, 9777 { 9778 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 9779 PCI_VENDOR_ID_ADAPTEC2, 0x14c4) 9780 }, 9781 { 9782 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 9783 PCI_VENDOR_ID_ADAPTEC2, 0x14d0) 9784 }, 9785 { 9786 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 9787 PCI_VENDOR_ID_ADAPTEC2, 0x14e0) 9788 }, 9789 { 9790 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 9791 PCI_VENDOR_ID_ADAPTEC2, 0x14f0) 9792 }, 9793 { 9794 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 9795 PCI_VENDOR_ID_ADVANTECH, 0x8312) 9796 }, 9797 { 9798 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 9799 PCI_VENDOR_ID_DELL, 0x1fe0) 9800 }, 9801 { 9802 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 9803 PCI_VENDOR_ID_HP, 0x0600) 9804 }, 9805 { 9806 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 9807 PCI_VENDOR_ID_HP, 0x0601) 9808 }, 9809 { 9810 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 9811 PCI_VENDOR_ID_HP, 0x0602) 9812 }, 9813 { 9814 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 9815 PCI_VENDOR_ID_HP, 0x0603) 9816 }, 9817 { 9818 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 9819 PCI_VENDOR_ID_HP, 0x0609) 9820 }, 9821 { 9822 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 9823 PCI_VENDOR_ID_HP, 0x0650) 9824 }, 9825 { 9826 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 9827 PCI_VENDOR_ID_HP, 0x0651) 9828 }, 9829 { 9830 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 9831 PCI_VENDOR_ID_HP, 0x0652) 9832 }, 9833 { 9834 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 9835 PCI_VENDOR_ID_HP, 0x0653) 9836 }, 9837 { 9838 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 9839 PCI_VENDOR_ID_HP, 0x0654) 9840 }, 9841 { 9842 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 9843 PCI_VENDOR_ID_HP, 0x0655) 9844 }, 9845 { 9846 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 9847 PCI_VENDOR_ID_HP, 0x0700) 9848 }, 9849 { 9850 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 9851 PCI_VENDOR_ID_HP, 0x0701) 9852 }, 9853 { 9854 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 9855 PCI_VENDOR_ID_HP, 0x1001) 9856 }, 9857 { 9858 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 9859 PCI_VENDOR_ID_HP, 0x1002) 9860 }, 9861 { 9862 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 9863 PCI_VENDOR_ID_HP, 0x1100) 9864 }, 9865 { 9866 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 9867 PCI_VENDOR_ID_HP, 0x1101) 9868 }, 9869 { 9870 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 9871 0x1590, 0x0294) 9872 }, 9873 { 9874 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 9875 0x1590, 0x02db) 9876 }, 9877 { 9878 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 9879 0x1590, 0x02dc) 9880 }, 9881 { 9882 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 9883 0x1590, 0x032e) 9884 }, 9885 { 9886 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 9887 0x1590, 0x036f) 9888 }, 9889 { 9890 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 9891 0x1590, 0x0381) 9892 }, 9893 { 9894 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 9895 0x1590, 0x0382) 9896 }, 9897 { 9898 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 9899 0x1590, 0x0383) 9900 }, 9901 { 9902 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 9903 0x1d8d, 0x0800) 9904 }, 9905 { 9906 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 9907 0x1d8d, 0x0908) 9908 }, 9909 { 9910 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 9911 0x1d8d, 0x0806) 9912 }, 9913 { 9914 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 9915 0x1d8d, 0x0916) 9916 }, 9917 { 9918 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 9919 PCI_VENDOR_ID_GIGABYTE, 0x1000) 9920 }, 9921 { 9922 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 9923 0x1dfc, 0x3161) 9924 }, 9925 { 9926 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 9927 0x1f0c, 0x3161) 9928 }, 9929 { 9930 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 9931 0x1cf2, 0x5445) 9932 }, 9933 { 9934 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 9935 0x1cf2, 0x5446) 9936 }, 9937 { 9938 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 9939 0x1cf2, 0x5447) 9940 }, 9941 { 9942 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 9943 0x1cf2, 0x5449) 9944 }, 9945 { 9946 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 9947 0x1cf2, 0x544a) 9948 }, 9949 { 9950 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 9951 0x1cf2, 0x544b) 9952 }, 9953 { 9954 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 9955 0x1cf2, 0x544d) 9956 }, 9957 { 9958 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 9959 0x1cf2, 0x544e) 9960 }, 9961 { 9962 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 9963 0x1cf2, 0x544f) 9964 }, 9965 { 9966 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 9967 0x1cf2, 0x0b27) 9968 }, 9969 { 9970 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 9971 0x1cf2, 0x0b29) 9972 }, 9973 { 9974 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 9975 0x1cf2, 0x0b45) 9976 }, 9977 { 9978 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 9979 0x1cc4, 0x0101) 9980 }, 9981 { 9982 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 9983 0x1cc4, 0x0201) 9984 }, 9985 { 9986 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 9987 PCI_VENDOR_ID_LENOVO, 0x0220) 9988 }, 9989 { 9990 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 9991 PCI_VENDOR_ID_LENOVO, 0x0221) 9992 }, 9993 { 9994 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 9995 PCI_VENDOR_ID_LENOVO, 0x0520) 9996 }, 9997 { 9998 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 9999 PCI_VENDOR_ID_LENOVO, 0x0522) 10000 }, 10001 { 10002 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 10003 PCI_VENDOR_ID_LENOVO, 0x0620) 10004 }, 10005 { 10006 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 10007 PCI_VENDOR_ID_LENOVO, 0x0621) 10008 }, 10009 { 10010 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 10011 PCI_VENDOR_ID_LENOVO, 0x0622) 10012 }, 10013 { 10014 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 10015 PCI_VENDOR_ID_LENOVO, 0x0623) 10016 }, 10017 { 10018 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 10019 0x1e93, 0x1000) 10020 }, 10021 { 10022 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 10023 0x1e93, 0x1001) 10024 }, 10025 { 10026 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 10027 0x1e93, 0x1002) 10028 }, 10029 { 10030 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 10031 PCI_ANY_ID, PCI_ANY_ID) 10032 }, 10033 { 0 } 10034 }; 10035 10036 MODULE_DEVICE_TABLE(pci, pqi_pci_id_table); 10037 10038 static struct pci_driver pqi_pci_driver = { 10039 .name = DRIVER_NAME_SHORT, 10040 .id_table = pqi_pci_id_table, 10041 .probe = pqi_pci_probe, 10042 .remove = pqi_pci_remove, 10043 .shutdown = pqi_shutdown, 10044 #if defined(CONFIG_PM) 10045 .driver = { 10046 .pm = &pqi_pm_ops 10047 }, 10048 #endif 10049 }; 10050 10051 static int __init pqi_init(void) 10052 { 10053 int rc; 10054 10055 pr_info(DRIVER_NAME "\n"); 10056 pqi_verify_structures(); 10057 sis_verify_structures(); 10058 10059 pqi_sas_transport_template = sas_attach_transport(&pqi_sas_transport_functions); 10060 if (!pqi_sas_transport_template) 10061 return -ENODEV; 10062 10063 pqi_process_module_params(); 10064 10065 rc = pci_register_driver(&pqi_pci_driver); 10066 if (rc) 10067 sas_release_transport(pqi_sas_transport_template); 10068 10069 return rc; 10070 } 10071 10072 static void __exit pqi_cleanup(void) 10073 { 10074 pci_unregister_driver(&pqi_pci_driver); 10075 sas_release_transport(pqi_sas_transport_template); 10076 } 10077 10078 module_init(pqi_init); 10079 module_exit(pqi_cleanup); 10080 10081 static void pqi_verify_structures(void) 10082 { 10083 BUILD_BUG_ON(offsetof(struct pqi_ctrl_registers, 10084 sis_host_to_ctrl_doorbell) != 0x20); 10085 BUILD_BUG_ON(offsetof(struct pqi_ctrl_registers, 10086 sis_interrupt_mask) != 0x34); 10087 BUILD_BUG_ON(offsetof(struct pqi_ctrl_registers, 10088 sis_ctrl_to_host_doorbell) != 0x9c); 10089 BUILD_BUG_ON(offsetof(struct pqi_ctrl_registers, 10090 sis_ctrl_to_host_doorbell_clear) != 0xa0); 10091 BUILD_BUG_ON(offsetof(struct pqi_ctrl_registers, 10092 sis_driver_scratch) != 0xb0); 10093 BUILD_BUG_ON(offsetof(struct pqi_ctrl_registers, 10094 sis_product_identifier) != 0xb4); 10095 BUILD_BUG_ON(offsetof(struct pqi_ctrl_registers, 10096 sis_firmware_status) != 0xbc); 10097 BUILD_BUG_ON(offsetof(struct pqi_ctrl_registers, 10098 sis_ctrl_shutdown_reason_code) != 0xcc); 10099 BUILD_BUG_ON(offsetof(struct pqi_ctrl_registers, 10100 sis_mailbox) != 0x1000); 10101 BUILD_BUG_ON(offsetof(struct pqi_ctrl_registers, 10102 pqi_registers) != 0x4000); 10103 10104 BUILD_BUG_ON(offsetof(struct pqi_iu_header, 10105 iu_type) != 0x0); 10106 BUILD_BUG_ON(offsetof(struct pqi_iu_header, 10107 iu_length) != 0x2); 10108 BUILD_BUG_ON(offsetof(struct pqi_iu_header, 10109 response_queue_id) != 0x4); 10110 BUILD_BUG_ON(offsetof(struct pqi_iu_header, 10111 driver_flags) != 0x6); 10112 BUILD_BUG_ON(sizeof(struct pqi_iu_header) != 0x8); 10113 10114 BUILD_BUG_ON(offsetof(struct pqi_aio_error_info, 10115 status) != 0x0); 10116 BUILD_BUG_ON(offsetof(struct pqi_aio_error_info, 10117 service_response) != 0x1); 10118 BUILD_BUG_ON(offsetof(struct pqi_aio_error_info, 10119 data_present) != 0x2); 10120 BUILD_BUG_ON(offsetof(struct pqi_aio_error_info, 10121 reserved) != 0x3); 10122 BUILD_BUG_ON(offsetof(struct pqi_aio_error_info, 10123 residual_count) != 0x4); 10124 BUILD_BUG_ON(offsetof(struct pqi_aio_error_info, 10125 data_length) != 0x8); 10126 BUILD_BUG_ON(offsetof(struct pqi_aio_error_info, 10127 reserved1) != 0xa); 10128 BUILD_BUG_ON(offsetof(struct pqi_aio_error_info, 10129 data) != 0xc); 10130 BUILD_BUG_ON(sizeof(struct pqi_aio_error_info) != 0x10c); 10131 10132 BUILD_BUG_ON(offsetof(struct pqi_raid_error_info, 10133 data_in_result) != 0x0); 10134 BUILD_BUG_ON(offsetof(struct pqi_raid_error_info, 10135 data_out_result) != 0x1); 10136 BUILD_BUG_ON(offsetof(struct pqi_raid_error_info, 10137 reserved) != 0x2); 10138 BUILD_BUG_ON(offsetof(struct pqi_raid_error_info, 10139 status) != 0x5); 10140 BUILD_BUG_ON(offsetof(struct pqi_raid_error_info, 10141 status_qualifier) != 0x6); 10142 BUILD_BUG_ON(offsetof(struct pqi_raid_error_info, 10143 sense_data_length) != 0x8); 10144 BUILD_BUG_ON(offsetof(struct pqi_raid_error_info, 10145 response_data_length) != 0xa); 10146 BUILD_BUG_ON(offsetof(struct pqi_raid_error_info, 10147 data_in_transferred) != 0xc); 10148 BUILD_BUG_ON(offsetof(struct pqi_raid_error_info, 10149 data_out_transferred) != 0x10); 10150 BUILD_BUG_ON(offsetof(struct pqi_raid_error_info, 10151 data) != 0x14); 10152 BUILD_BUG_ON(sizeof(struct pqi_raid_error_info) != 0x114); 10153 10154 BUILD_BUG_ON(offsetof(struct pqi_device_registers, 10155 signature) != 0x0); 10156 BUILD_BUG_ON(offsetof(struct pqi_device_registers, 10157 function_and_status_code) != 0x8); 10158 BUILD_BUG_ON(offsetof(struct pqi_device_registers, 10159 max_admin_iq_elements) != 0x10); 10160 BUILD_BUG_ON(offsetof(struct pqi_device_registers, 10161 max_admin_oq_elements) != 0x11); 10162 BUILD_BUG_ON(offsetof(struct pqi_device_registers, 10163 admin_iq_element_length) != 0x12); 10164 BUILD_BUG_ON(offsetof(struct pqi_device_registers, 10165 admin_oq_element_length) != 0x13); 10166 BUILD_BUG_ON(offsetof(struct pqi_device_registers, 10167 max_reset_timeout) != 0x14); 10168 BUILD_BUG_ON(offsetof(struct pqi_device_registers, 10169 legacy_intx_status) != 0x18); 10170 BUILD_BUG_ON(offsetof(struct pqi_device_registers, 10171 legacy_intx_mask_set) != 0x1c); 10172 BUILD_BUG_ON(offsetof(struct pqi_device_registers, 10173 legacy_intx_mask_clear) != 0x20); 10174 BUILD_BUG_ON(offsetof(struct pqi_device_registers, 10175 device_status) != 0x40); 10176 BUILD_BUG_ON(offsetof(struct pqi_device_registers, 10177 admin_iq_pi_offset) != 0x48); 10178 BUILD_BUG_ON(offsetof(struct pqi_device_registers, 10179 admin_oq_ci_offset) != 0x50); 10180 BUILD_BUG_ON(offsetof(struct pqi_device_registers, 10181 admin_iq_element_array_addr) != 0x58); 10182 BUILD_BUG_ON(offsetof(struct pqi_device_registers, 10183 admin_oq_element_array_addr) != 0x60); 10184 BUILD_BUG_ON(offsetof(struct pqi_device_registers, 10185 admin_iq_ci_addr) != 0x68); 10186 BUILD_BUG_ON(offsetof(struct pqi_device_registers, 10187 admin_oq_pi_addr) != 0x70); 10188 BUILD_BUG_ON(offsetof(struct pqi_device_registers, 10189 admin_iq_num_elements) != 0x78); 10190 BUILD_BUG_ON(offsetof(struct pqi_device_registers, 10191 admin_oq_num_elements) != 0x79); 10192 BUILD_BUG_ON(offsetof(struct pqi_device_registers, 10193 admin_queue_int_msg_num) != 0x7a); 10194 BUILD_BUG_ON(offsetof(struct pqi_device_registers, 10195 device_error) != 0x80); 10196 BUILD_BUG_ON(offsetof(struct pqi_device_registers, 10197 error_details) != 0x88); 10198 BUILD_BUG_ON(offsetof(struct pqi_device_registers, 10199 device_reset) != 0x90); 10200 BUILD_BUG_ON(offsetof(struct pqi_device_registers, 10201 power_action) != 0x94); 10202 BUILD_BUG_ON(sizeof(struct pqi_device_registers) != 0x100); 10203 10204 BUILD_BUG_ON(offsetof(struct pqi_general_admin_request, 10205 header.iu_type) != 0); 10206 BUILD_BUG_ON(offsetof(struct pqi_general_admin_request, 10207 header.iu_length) != 2); 10208 BUILD_BUG_ON(offsetof(struct pqi_general_admin_request, 10209 header.driver_flags) != 6); 10210 BUILD_BUG_ON(offsetof(struct pqi_general_admin_request, 10211 request_id) != 8); 10212 BUILD_BUG_ON(offsetof(struct pqi_general_admin_request, 10213 function_code) != 10); 10214 BUILD_BUG_ON(offsetof(struct pqi_general_admin_request, 10215 data.report_device_capability.buffer_length) != 44); 10216 BUILD_BUG_ON(offsetof(struct pqi_general_admin_request, 10217 data.report_device_capability.sg_descriptor) != 48); 10218 BUILD_BUG_ON(offsetof(struct pqi_general_admin_request, 10219 data.create_operational_iq.queue_id) != 12); 10220 BUILD_BUG_ON(offsetof(struct pqi_general_admin_request, 10221 data.create_operational_iq.element_array_addr) != 16); 10222 BUILD_BUG_ON(offsetof(struct pqi_general_admin_request, 10223 data.create_operational_iq.ci_addr) != 24); 10224 BUILD_BUG_ON(offsetof(struct pqi_general_admin_request, 10225 data.create_operational_iq.num_elements) != 32); 10226 BUILD_BUG_ON(offsetof(struct pqi_general_admin_request, 10227 data.create_operational_iq.element_length) != 34); 10228 BUILD_BUG_ON(offsetof(struct pqi_general_admin_request, 10229 data.create_operational_iq.queue_protocol) != 36); 10230 BUILD_BUG_ON(offsetof(struct pqi_general_admin_request, 10231 data.create_operational_oq.queue_id) != 12); 10232 BUILD_BUG_ON(offsetof(struct pqi_general_admin_request, 10233 data.create_operational_oq.element_array_addr) != 16); 10234 BUILD_BUG_ON(offsetof(struct pqi_general_admin_request, 10235 data.create_operational_oq.pi_addr) != 24); 10236 BUILD_BUG_ON(offsetof(struct pqi_general_admin_request, 10237 data.create_operational_oq.num_elements) != 32); 10238 BUILD_BUG_ON(offsetof(struct pqi_general_admin_request, 10239 data.create_operational_oq.element_length) != 34); 10240 BUILD_BUG_ON(offsetof(struct pqi_general_admin_request, 10241 data.create_operational_oq.queue_protocol) != 36); 10242 BUILD_BUG_ON(offsetof(struct pqi_general_admin_request, 10243 data.create_operational_oq.int_msg_num) != 40); 10244 BUILD_BUG_ON(offsetof(struct pqi_general_admin_request, 10245 data.create_operational_oq.coalescing_count) != 42); 10246 BUILD_BUG_ON(offsetof(struct pqi_general_admin_request, 10247 data.create_operational_oq.min_coalescing_time) != 44); 10248 BUILD_BUG_ON(offsetof(struct pqi_general_admin_request, 10249 data.create_operational_oq.max_coalescing_time) != 48); 10250 BUILD_BUG_ON(offsetof(struct pqi_general_admin_request, 10251 data.delete_operational_queue.queue_id) != 12); 10252 BUILD_BUG_ON(sizeof(struct pqi_general_admin_request) != 64); 10253 BUILD_BUG_ON(sizeof_field(struct pqi_general_admin_request, 10254 data.create_operational_iq) != 64 - 11); 10255 BUILD_BUG_ON(sizeof_field(struct pqi_general_admin_request, 10256 data.create_operational_oq) != 64 - 11); 10257 BUILD_BUG_ON(sizeof_field(struct pqi_general_admin_request, 10258 data.delete_operational_queue) != 64 - 11); 10259 10260 BUILD_BUG_ON(offsetof(struct pqi_general_admin_response, 10261 header.iu_type) != 0); 10262 BUILD_BUG_ON(offsetof(struct pqi_general_admin_response, 10263 header.iu_length) != 2); 10264 BUILD_BUG_ON(offsetof(struct pqi_general_admin_response, 10265 header.driver_flags) != 6); 10266 BUILD_BUG_ON(offsetof(struct pqi_general_admin_response, 10267 request_id) != 8); 10268 BUILD_BUG_ON(offsetof(struct pqi_general_admin_response, 10269 function_code) != 10); 10270 BUILD_BUG_ON(offsetof(struct pqi_general_admin_response, 10271 status) != 11); 10272 BUILD_BUG_ON(offsetof(struct pqi_general_admin_response, 10273 data.create_operational_iq.status_descriptor) != 12); 10274 BUILD_BUG_ON(offsetof(struct pqi_general_admin_response, 10275 data.create_operational_iq.iq_pi_offset) != 16); 10276 BUILD_BUG_ON(offsetof(struct pqi_general_admin_response, 10277 data.create_operational_oq.status_descriptor) != 12); 10278 BUILD_BUG_ON(offsetof(struct pqi_general_admin_response, 10279 data.create_operational_oq.oq_ci_offset) != 16); 10280 BUILD_BUG_ON(sizeof(struct pqi_general_admin_response) != 64); 10281 10282 BUILD_BUG_ON(offsetof(struct pqi_raid_path_request, 10283 header.iu_type) != 0); 10284 BUILD_BUG_ON(offsetof(struct pqi_raid_path_request, 10285 header.iu_length) != 2); 10286 BUILD_BUG_ON(offsetof(struct pqi_raid_path_request, 10287 header.response_queue_id) != 4); 10288 BUILD_BUG_ON(offsetof(struct pqi_raid_path_request, 10289 header.driver_flags) != 6); 10290 BUILD_BUG_ON(offsetof(struct pqi_raid_path_request, 10291 request_id) != 8); 10292 BUILD_BUG_ON(offsetof(struct pqi_raid_path_request, 10293 nexus_id) != 10); 10294 BUILD_BUG_ON(offsetof(struct pqi_raid_path_request, 10295 buffer_length) != 12); 10296 BUILD_BUG_ON(offsetof(struct pqi_raid_path_request, 10297 lun_number) != 16); 10298 BUILD_BUG_ON(offsetof(struct pqi_raid_path_request, 10299 protocol_specific) != 24); 10300 BUILD_BUG_ON(offsetof(struct pqi_raid_path_request, 10301 error_index) != 27); 10302 BUILD_BUG_ON(offsetof(struct pqi_raid_path_request, 10303 cdb) != 32); 10304 BUILD_BUG_ON(offsetof(struct pqi_raid_path_request, 10305 timeout) != 60); 10306 BUILD_BUG_ON(offsetof(struct pqi_raid_path_request, 10307 sg_descriptors) != 64); 10308 BUILD_BUG_ON(sizeof(struct pqi_raid_path_request) != 10309 PQI_OPERATIONAL_IQ_ELEMENT_LENGTH); 10310 10311 BUILD_BUG_ON(offsetof(struct pqi_aio_path_request, 10312 header.iu_type) != 0); 10313 BUILD_BUG_ON(offsetof(struct pqi_aio_path_request, 10314 header.iu_length) != 2); 10315 BUILD_BUG_ON(offsetof(struct pqi_aio_path_request, 10316 header.response_queue_id) != 4); 10317 BUILD_BUG_ON(offsetof(struct pqi_aio_path_request, 10318 header.driver_flags) != 6); 10319 BUILD_BUG_ON(offsetof(struct pqi_aio_path_request, 10320 request_id) != 8); 10321 BUILD_BUG_ON(offsetof(struct pqi_aio_path_request, 10322 nexus_id) != 12); 10323 BUILD_BUG_ON(offsetof(struct pqi_aio_path_request, 10324 buffer_length) != 16); 10325 BUILD_BUG_ON(offsetof(struct pqi_aio_path_request, 10326 data_encryption_key_index) != 22); 10327 BUILD_BUG_ON(offsetof(struct pqi_aio_path_request, 10328 encrypt_tweak_lower) != 24); 10329 BUILD_BUG_ON(offsetof(struct pqi_aio_path_request, 10330 encrypt_tweak_upper) != 28); 10331 BUILD_BUG_ON(offsetof(struct pqi_aio_path_request, 10332 cdb) != 32); 10333 BUILD_BUG_ON(offsetof(struct pqi_aio_path_request, 10334 error_index) != 48); 10335 BUILD_BUG_ON(offsetof(struct pqi_aio_path_request, 10336 num_sg_descriptors) != 50); 10337 BUILD_BUG_ON(offsetof(struct pqi_aio_path_request, 10338 cdb_length) != 51); 10339 BUILD_BUG_ON(offsetof(struct pqi_aio_path_request, 10340 lun_number) != 52); 10341 BUILD_BUG_ON(offsetof(struct pqi_aio_path_request, 10342 sg_descriptors) != 64); 10343 BUILD_BUG_ON(sizeof(struct pqi_aio_path_request) != 10344 PQI_OPERATIONAL_IQ_ELEMENT_LENGTH); 10345 10346 BUILD_BUG_ON(offsetof(struct pqi_io_response, 10347 header.iu_type) != 0); 10348 BUILD_BUG_ON(offsetof(struct pqi_io_response, 10349 header.iu_length) != 2); 10350 BUILD_BUG_ON(offsetof(struct pqi_io_response, 10351 request_id) != 8); 10352 BUILD_BUG_ON(offsetof(struct pqi_io_response, 10353 error_index) != 10); 10354 10355 BUILD_BUG_ON(offsetof(struct pqi_general_management_request, 10356 header.iu_type) != 0); 10357 BUILD_BUG_ON(offsetof(struct pqi_general_management_request, 10358 header.iu_length) != 2); 10359 BUILD_BUG_ON(offsetof(struct pqi_general_management_request, 10360 header.response_queue_id) != 4); 10361 BUILD_BUG_ON(offsetof(struct pqi_general_management_request, 10362 request_id) != 8); 10363 BUILD_BUG_ON(offsetof(struct pqi_general_management_request, 10364 data.report_event_configuration.buffer_length) != 12); 10365 BUILD_BUG_ON(offsetof(struct pqi_general_management_request, 10366 data.report_event_configuration.sg_descriptors) != 16); 10367 BUILD_BUG_ON(offsetof(struct pqi_general_management_request, 10368 data.set_event_configuration.global_event_oq_id) != 10); 10369 BUILD_BUG_ON(offsetof(struct pqi_general_management_request, 10370 data.set_event_configuration.buffer_length) != 12); 10371 BUILD_BUG_ON(offsetof(struct pqi_general_management_request, 10372 data.set_event_configuration.sg_descriptors) != 16); 10373 10374 BUILD_BUG_ON(offsetof(struct pqi_iu_layer_descriptor, 10375 max_inbound_iu_length) != 6); 10376 BUILD_BUG_ON(offsetof(struct pqi_iu_layer_descriptor, 10377 max_outbound_iu_length) != 14); 10378 BUILD_BUG_ON(sizeof(struct pqi_iu_layer_descriptor) != 16); 10379 10380 BUILD_BUG_ON(offsetof(struct pqi_device_capability, 10381 data_length) != 0); 10382 BUILD_BUG_ON(offsetof(struct pqi_device_capability, 10383 iq_arbitration_priority_support_bitmask) != 8); 10384 BUILD_BUG_ON(offsetof(struct pqi_device_capability, 10385 maximum_aw_a) != 9); 10386 BUILD_BUG_ON(offsetof(struct pqi_device_capability, 10387 maximum_aw_b) != 10); 10388 BUILD_BUG_ON(offsetof(struct pqi_device_capability, 10389 maximum_aw_c) != 11); 10390 BUILD_BUG_ON(offsetof(struct pqi_device_capability, 10391 max_inbound_queues) != 16); 10392 BUILD_BUG_ON(offsetof(struct pqi_device_capability, 10393 max_elements_per_iq) != 18); 10394 BUILD_BUG_ON(offsetof(struct pqi_device_capability, 10395 max_iq_element_length) != 24); 10396 BUILD_BUG_ON(offsetof(struct pqi_device_capability, 10397 min_iq_element_length) != 26); 10398 BUILD_BUG_ON(offsetof(struct pqi_device_capability, 10399 max_outbound_queues) != 30); 10400 BUILD_BUG_ON(offsetof(struct pqi_device_capability, 10401 max_elements_per_oq) != 32); 10402 BUILD_BUG_ON(offsetof(struct pqi_device_capability, 10403 intr_coalescing_time_granularity) != 34); 10404 BUILD_BUG_ON(offsetof(struct pqi_device_capability, 10405 max_oq_element_length) != 36); 10406 BUILD_BUG_ON(offsetof(struct pqi_device_capability, 10407 min_oq_element_length) != 38); 10408 BUILD_BUG_ON(offsetof(struct pqi_device_capability, 10409 iu_layer_descriptors) != 64); 10410 BUILD_BUG_ON(sizeof(struct pqi_device_capability) != 576); 10411 10412 BUILD_BUG_ON(offsetof(struct pqi_event_descriptor, 10413 event_type) != 0); 10414 BUILD_BUG_ON(offsetof(struct pqi_event_descriptor, 10415 oq_id) != 2); 10416 BUILD_BUG_ON(sizeof(struct pqi_event_descriptor) != 4); 10417 10418 BUILD_BUG_ON(offsetof(struct pqi_event_config, 10419 num_event_descriptors) != 2); 10420 BUILD_BUG_ON(offsetof(struct pqi_event_config, 10421 descriptors) != 4); 10422 10423 BUILD_BUG_ON(PQI_NUM_SUPPORTED_EVENTS != 10424 ARRAY_SIZE(pqi_supported_event_types)); 10425 10426 BUILD_BUG_ON(offsetof(struct pqi_event_response, 10427 header.iu_type) != 0); 10428 BUILD_BUG_ON(offsetof(struct pqi_event_response, 10429 header.iu_length) != 2); 10430 BUILD_BUG_ON(offsetof(struct pqi_event_response, 10431 event_type) != 8); 10432 BUILD_BUG_ON(offsetof(struct pqi_event_response, 10433 event_id) != 10); 10434 BUILD_BUG_ON(offsetof(struct pqi_event_response, 10435 additional_event_id) != 12); 10436 BUILD_BUG_ON(offsetof(struct pqi_event_response, 10437 data) != 16); 10438 BUILD_BUG_ON(sizeof(struct pqi_event_response) != 32); 10439 10440 BUILD_BUG_ON(offsetof(struct pqi_event_acknowledge_request, 10441 header.iu_type) != 0); 10442 BUILD_BUG_ON(offsetof(struct pqi_event_acknowledge_request, 10443 header.iu_length) != 2); 10444 BUILD_BUG_ON(offsetof(struct pqi_event_acknowledge_request, 10445 event_type) != 8); 10446 BUILD_BUG_ON(offsetof(struct pqi_event_acknowledge_request, 10447 event_id) != 10); 10448 BUILD_BUG_ON(offsetof(struct pqi_event_acknowledge_request, 10449 additional_event_id) != 12); 10450 BUILD_BUG_ON(sizeof(struct pqi_event_acknowledge_request) != 16); 10451 10452 BUILD_BUG_ON(offsetof(struct pqi_task_management_request, 10453 header.iu_type) != 0); 10454 BUILD_BUG_ON(offsetof(struct pqi_task_management_request, 10455 header.iu_length) != 2); 10456 BUILD_BUG_ON(offsetof(struct pqi_task_management_request, 10457 request_id) != 8); 10458 BUILD_BUG_ON(offsetof(struct pqi_task_management_request, 10459 nexus_id) != 10); 10460 BUILD_BUG_ON(offsetof(struct pqi_task_management_request, 10461 timeout) != 14); 10462 BUILD_BUG_ON(offsetof(struct pqi_task_management_request, 10463 lun_number) != 16); 10464 BUILD_BUG_ON(offsetof(struct pqi_task_management_request, 10465 protocol_specific) != 24); 10466 BUILD_BUG_ON(offsetof(struct pqi_task_management_request, 10467 outbound_queue_id_to_manage) != 26); 10468 BUILD_BUG_ON(offsetof(struct pqi_task_management_request, 10469 request_id_to_manage) != 28); 10470 BUILD_BUG_ON(offsetof(struct pqi_task_management_request, 10471 task_management_function) != 30); 10472 BUILD_BUG_ON(sizeof(struct pqi_task_management_request) != 32); 10473 10474 BUILD_BUG_ON(offsetof(struct pqi_task_management_response, 10475 header.iu_type) != 0); 10476 BUILD_BUG_ON(offsetof(struct pqi_task_management_response, 10477 header.iu_length) != 2); 10478 BUILD_BUG_ON(offsetof(struct pqi_task_management_response, 10479 request_id) != 8); 10480 BUILD_BUG_ON(offsetof(struct pqi_task_management_response, 10481 nexus_id) != 10); 10482 BUILD_BUG_ON(offsetof(struct pqi_task_management_response, 10483 additional_response_info) != 12); 10484 BUILD_BUG_ON(offsetof(struct pqi_task_management_response, 10485 response_code) != 15); 10486 BUILD_BUG_ON(sizeof(struct pqi_task_management_response) != 16); 10487 10488 BUILD_BUG_ON(offsetof(struct bmic_identify_controller, 10489 configured_logical_drive_count) != 0); 10490 BUILD_BUG_ON(offsetof(struct bmic_identify_controller, 10491 configuration_signature) != 1); 10492 BUILD_BUG_ON(offsetof(struct bmic_identify_controller, 10493 firmware_version_short) != 5); 10494 BUILD_BUG_ON(offsetof(struct bmic_identify_controller, 10495 extended_logical_unit_count) != 154); 10496 BUILD_BUG_ON(offsetof(struct bmic_identify_controller, 10497 firmware_build_number) != 190); 10498 BUILD_BUG_ON(offsetof(struct bmic_identify_controller, 10499 vendor_id) != 200); 10500 BUILD_BUG_ON(offsetof(struct bmic_identify_controller, 10501 product_id) != 208); 10502 BUILD_BUG_ON(offsetof(struct bmic_identify_controller, 10503 extra_controller_flags) != 286); 10504 BUILD_BUG_ON(offsetof(struct bmic_identify_controller, 10505 controller_mode) != 292); 10506 BUILD_BUG_ON(offsetof(struct bmic_identify_controller, 10507 spare_part_number) != 293); 10508 BUILD_BUG_ON(offsetof(struct bmic_identify_controller, 10509 firmware_version_long) != 325); 10510 10511 BUILD_BUG_ON(offsetof(struct bmic_identify_physical_device, 10512 phys_bay_in_box) != 115); 10513 BUILD_BUG_ON(offsetof(struct bmic_identify_physical_device, 10514 device_type) != 120); 10515 BUILD_BUG_ON(offsetof(struct bmic_identify_physical_device, 10516 redundant_path_present_map) != 1736); 10517 BUILD_BUG_ON(offsetof(struct bmic_identify_physical_device, 10518 active_path_number) != 1738); 10519 BUILD_BUG_ON(offsetof(struct bmic_identify_physical_device, 10520 alternate_paths_phys_connector) != 1739); 10521 BUILD_BUG_ON(offsetof(struct bmic_identify_physical_device, 10522 alternate_paths_phys_box_on_port) != 1755); 10523 BUILD_BUG_ON(offsetof(struct bmic_identify_physical_device, 10524 current_queue_depth_limit) != 1796); 10525 BUILD_BUG_ON(sizeof(struct bmic_identify_physical_device) != 2560); 10526 10527 BUILD_BUG_ON(sizeof(struct bmic_sense_feature_buffer_header) != 4); 10528 BUILD_BUG_ON(offsetof(struct bmic_sense_feature_buffer_header, 10529 page_code) != 0); 10530 BUILD_BUG_ON(offsetof(struct bmic_sense_feature_buffer_header, 10531 subpage_code) != 1); 10532 BUILD_BUG_ON(offsetof(struct bmic_sense_feature_buffer_header, 10533 buffer_length) != 2); 10534 10535 BUILD_BUG_ON(sizeof(struct bmic_sense_feature_page_header) != 4); 10536 BUILD_BUG_ON(offsetof(struct bmic_sense_feature_page_header, 10537 page_code) != 0); 10538 BUILD_BUG_ON(offsetof(struct bmic_sense_feature_page_header, 10539 subpage_code) != 1); 10540 BUILD_BUG_ON(offsetof(struct bmic_sense_feature_page_header, 10541 page_length) != 2); 10542 10543 BUILD_BUG_ON(sizeof(struct bmic_sense_feature_io_page_aio_subpage) 10544 != 18); 10545 BUILD_BUG_ON(offsetof(struct bmic_sense_feature_io_page_aio_subpage, 10546 header) != 0); 10547 BUILD_BUG_ON(offsetof(struct bmic_sense_feature_io_page_aio_subpage, 10548 firmware_read_support) != 4); 10549 BUILD_BUG_ON(offsetof(struct bmic_sense_feature_io_page_aio_subpage, 10550 driver_read_support) != 5); 10551 BUILD_BUG_ON(offsetof(struct bmic_sense_feature_io_page_aio_subpage, 10552 firmware_write_support) != 6); 10553 BUILD_BUG_ON(offsetof(struct bmic_sense_feature_io_page_aio_subpage, 10554 driver_write_support) != 7); 10555 BUILD_BUG_ON(offsetof(struct bmic_sense_feature_io_page_aio_subpage, 10556 max_transfer_encrypted_sas_sata) != 8); 10557 BUILD_BUG_ON(offsetof(struct bmic_sense_feature_io_page_aio_subpage, 10558 max_transfer_encrypted_nvme) != 10); 10559 BUILD_BUG_ON(offsetof(struct bmic_sense_feature_io_page_aio_subpage, 10560 max_write_raid_5_6) != 12); 10561 BUILD_BUG_ON(offsetof(struct bmic_sense_feature_io_page_aio_subpage, 10562 max_write_raid_1_10_2drive) != 14); 10563 BUILD_BUG_ON(offsetof(struct bmic_sense_feature_io_page_aio_subpage, 10564 max_write_raid_1_10_3drive) != 16); 10565 10566 BUILD_BUG_ON(PQI_ADMIN_IQ_NUM_ELEMENTS > 255); 10567 BUILD_BUG_ON(PQI_ADMIN_OQ_NUM_ELEMENTS > 255); 10568 BUILD_BUG_ON(PQI_ADMIN_IQ_ELEMENT_LENGTH % 10569 PQI_QUEUE_ELEMENT_LENGTH_ALIGNMENT != 0); 10570 BUILD_BUG_ON(PQI_ADMIN_OQ_ELEMENT_LENGTH % 10571 PQI_QUEUE_ELEMENT_LENGTH_ALIGNMENT != 0); 10572 BUILD_BUG_ON(PQI_OPERATIONAL_IQ_ELEMENT_LENGTH > 1048560); 10573 BUILD_BUG_ON(PQI_OPERATIONAL_IQ_ELEMENT_LENGTH % 10574 PQI_QUEUE_ELEMENT_LENGTH_ALIGNMENT != 0); 10575 BUILD_BUG_ON(PQI_OPERATIONAL_OQ_ELEMENT_LENGTH > 1048560); 10576 BUILD_BUG_ON(PQI_OPERATIONAL_OQ_ELEMENT_LENGTH % 10577 PQI_QUEUE_ELEMENT_LENGTH_ALIGNMENT != 0); 10578 10579 BUILD_BUG_ON(PQI_RESERVED_IO_SLOTS >= PQI_MAX_OUTSTANDING_REQUESTS); 10580 BUILD_BUG_ON(PQI_RESERVED_IO_SLOTS >= 10581 PQI_MAX_OUTSTANDING_REQUESTS_KDUMP); 10582 } 10583