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 "2.1.18-045" 37 #define DRIVER_MAJOR 2 38 #define DRIVER_MINOR 1 39 #define DRIVER_RELEASE 18 40 #define DRIVER_REVISION 45 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 struct pqi_io_request *pqi_alloc_io_request( 682 struct pqi_ctrl_info *ctrl_info) 683 { 684 struct pqi_io_request *io_request; 685 u16 i = ctrl_info->next_io_request_slot; /* benignly racy */ 686 687 while (1) { 688 io_request = &ctrl_info->io_request_pool[i]; 689 if (atomic_inc_return(&io_request->refcount) == 1) 690 break; 691 atomic_dec(&io_request->refcount); 692 i = (i + 1) % ctrl_info->max_io_slots; 693 } 694 695 /* benignly racy */ 696 ctrl_info->next_io_request_slot = (i + 1) % ctrl_info->max_io_slots; 697 698 pqi_reinit_io_request(io_request); 699 700 return io_request; 701 } 702 703 static void pqi_free_io_request(struct pqi_io_request *io_request) 704 { 705 atomic_dec(&io_request->refcount); 706 } 707 708 static int pqi_send_scsi_raid_request(struct pqi_ctrl_info *ctrl_info, u8 cmd, 709 u8 *scsi3addr, void *buffer, size_t buffer_length, u16 vpd_page, 710 struct pqi_raid_error_info *error_info) 711 { 712 int rc; 713 struct pqi_raid_path_request request; 714 enum dma_data_direction dir; 715 716 rc = pqi_build_raid_path_request(ctrl_info, &request, cmd, scsi3addr, 717 buffer, buffer_length, vpd_page, &dir); 718 if (rc) 719 return rc; 720 721 rc = pqi_submit_raid_request_synchronous(ctrl_info, &request.header, 0, error_info); 722 723 pqi_pci_unmap(ctrl_info->pci_dev, request.sg_descriptors, 1, dir); 724 725 return rc; 726 } 727 728 /* helper functions for pqi_send_scsi_raid_request */ 729 730 static inline int pqi_send_ctrl_raid_request(struct pqi_ctrl_info *ctrl_info, 731 u8 cmd, void *buffer, size_t buffer_length) 732 { 733 return pqi_send_scsi_raid_request(ctrl_info, cmd, RAID_CTLR_LUNID, 734 buffer, buffer_length, 0, NULL); 735 } 736 737 static inline int pqi_send_ctrl_raid_with_error(struct pqi_ctrl_info *ctrl_info, 738 u8 cmd, void *buffer, size_t buffer_length, 739 struct pqi_raid_error_info *error_info) 740 { 741 return pqi_send_scsi_raid_request(ctrl_info, cmd, RAID_CTLR_LUNID, 742 buffer, buffer_length, 0, error_info); 743 } 744 745 static inline int pqi_identify_controller(struct pqi_ctrl_info *ctrl_info, 746 struct bmic_identify_controller *buffer) 747 { 748 return pqi_send_ctrl_raid_request(ctrl_info, BMIC_IDENTIFY_CONTROLLER, 749 buffer, sizeof(*buffer)); 750 } 751 752 static inline int pqi_sense_subsystem_info(struct pqi_ctrl_info *ctrl_info, 753 struct bmic_sense_subsystem_info *sense_info) 754 { 755 return pqi_send_ctrl_raid_request(ctrl_info, 756 BMIC_SENSE_SUBSYSTEM_INFORMATION, sense_info, 757 sizeof(*sense_info)); 758 } 759 760 static inline int pqi_scsi_inquiry(struct pqi_ctrl_info *ctrl_info, 761 u8 *scsi3addr, u16 vpd_page, void *buffer, size_t buffer_length) 762 { 763 return pqi_send_scsi_raid_request(ctrl_info, INQUIRY, scsi3addr, 764 buffer, buffer_length, vpd_page, NULL); 765 } 766 767 static int pqi_identify_physical_device(struct pqi_ctrl_info *ctrl_info, 768 struct pqi_scsi_dev *device, 769 struct bmic_identify_physical_device *buffer, size_t buffer_length) 770 { 771 int rc; 772 enum dma_data_direction dir; 773 u16 bmic_device_index; 774 struct pqi_raid_path_request request; 775 776 rc = pqi_build_raid_path_request(ctrl_info, &request, 777 BMIC_IDENTIFY_PHYSICAL_DEVICE, RAID_CTLR_LUNID, buffer, 778 buffer_length, 0, &dir); 779 if (rc) 780 return rc; 781 782 bmic_device_index = CISS_GET_DRIVE_NUMBER(device->scsi3addr); 783 request.cdb[2] = (u8)bmic_device_index; 784 request.cdb[9] = (u8)(bmic_device_index >> 8); 785 786 rc = pqi_submit_raid_request_synchronous(ctrl_info, &request.header, 0, NULL); 787 788 pqi_pci_unmap(ctrl_info->pci_dev, request.sg_descriptors, 1, dir); 789 790 return rc; 791 } 792 793 static inline u32 pqi_aio_limit_to_bytes(__le16 *limit) 794 { 795 u32 bytes; 796 797 bytes = get_unaligned_le16(limit); 798 if (bytes == 0) 799 bytes = ~0; 800 else 801 bytes *= 1024; 802 803 return bytes; 804 } 805 806 #pragma pack(1) 807 808 struct bmic_sense_feature_buffer { 809 struct bmic_sense_feature_buffer_header header; 810 struct bmic_sense_feature_io_page_aio_subpage aio_subpage; 811 }; 812 813 #pragma pack() 814 815 #define MINIMUM_AIO_SUBPAGE_BUFFER_LENGTH \ 816 offsetofend(struct bmic_sense_feature_buffer, \ 817 aio_subpage.max_write_raid_1_10_3drive) 818 819 #define MINIMUM_AIO_SUBPAGE_LENGTH \ 820 (offsetofend(struct bmic_sense_feature_io_page_aio_subpage, \ 821 max_write_raid_1_10_3drive) - \ 822 sizeof_field(struct bmic_sense_feature_io_page_aio_subpage, header)) 823 824 static int pqi_get_advanced_raid_bypass_config(struct pqi_ctrl_info *ctrl_info) 825 { 826 int rc; 827 enum dma_data_direction dir; 828 struct pqi_raid_path_request request; 829 struct bmic_sense_feature_buffer *buffer; 830 831 buffer = kmalloc(sizeof(*buffer), GFP_KERNEL); 832 if (!buffer) 833 return -ENOMEM; 834 835 rc = pqi_build_raid_path_request(ctrl_info, &request, BMIC_SENSE_FEATURE, RAID_CTLR_LUNID, 836 buffer, sizeof(*buffer), 0, &dir); 837 if (rc) 838 goto error; 839 840 request.cdb[2] = BMIC_SENSE_FEATURE_IO_PAGE; 841 request.cdb[3] = BMIC_SENSE_FEATURE_IO_PAGE_AIO_SUBPAGE; 842 843 rc = pqi_submit_raid_request_synchronous(ctrl_info, &request.header, 0, NULL); 844 845 pqi_pci_unmap(ctrl_info->pci_dev, request.sg_descriptors, 1, dir); 846 847 if (rc) 848 goto error; 849 850 if (buffer->header.page_code != BMIC_SENSE_FEATURE_IO_PAGE || 851 buffer->header.subpage_code != 852 BMIC_SENSE_FEATURE_IO_PAGE_AIO_SUBPAGE || 853 get_unaligned_le16(&buffer->header.buffer_length) < 854 MINIMUM_AIO_SUBPAGE_BUFFER_LENGTH || 855 buffer->aio_subpage.header.page_code != 856 BMIC_SENSE_FEATURE_IO_PAGE || 857 buffer->aio_subpage.header.subpage_code != 858 BMIC_SENSE_FEATURE_IO_PAGE_AIO_SUBPAGE || 859 get_unaligned_le16(&buffer->aio_subpage.header.page_length) < 860 MINIMUM_AIO_SUBPAGE_LENGTH) { 861 goto error; 862 } 863 864 ctrl_info->max_transfer_encrypted_sas_sata = 865 pqi_aio_limit_to_bytes( 866 &buffer->aio_subpage.max_transfer_encrypted_sas_sata); 867 868 ctrl_info->max_transfer_encrypted_nvme = 869 pqi_aio_limit_to_bytes( 870 &buffer->aio_subpage.max_transfer_encrypted_nvme); 871 872 ctrl_info->max_write_raid_5_6 = 873 pqi_aio_limit_to_bytes( 874 &buffer->aio_subpage.max_write_raid_5_6); 875 876 ctrl_info->max_write_raid_1_10_2drive = 877 pqi_aio_limit_to_bytes( 878 &buffer->aio_subpage.max_write_raid_1_10_2drive); 879 880 ctrl_info->max_write_raid_1_10_3drive = 881 pqi_aio_limit_to_bytes( 882 &buffer->aio_subpage.max_write_raid_1_10_3drive); 883 884 error: 885 kfree(buffer); 886 887 return rc; 888 } 889 890 static int pqi_flush_cache(struct pqi_ctrl_info *ctrl_info, 891 enum bmic_flush_cache_shutdown_event shutdown_event) 892 { 893 int rc; 894 struct bmic_flush_cache *flush_cache; 895 896 flush_cache = kzalloc(sizeof(*flush_cache), GFP_KERNEL); 897 if (!flush_cache) 898 return -ENOMEM; 899 900 flush_cache->shutdown_event = shutdown_event; 901 902 rc = pqi_send_ctrl_raid_request(ctrl_info, SA_FLUSH_CACHE, flush_cache, 903 sizeof(*flush_cache)); 904 905 kfree(flush_cache); 906 907 return rc; 908 } 909 910 int pqi_csmi_smp_passthru(struct pqi_ctrl_info *ctrl_info, 911 struct bmic_csmi_smp_passthru_buffer *buffer, size_t buffer_length, 912 struct pqi_raid_error_info *error_info) 913 { 914 return pqi_send_ctrl_raid_with_error(ctrl_info, BMIC_CSMI_PASSTHRU, 915 buffer, buffer_length, error_info); 916 } 917 918 #define PQI_FETCH_PTRAID_DATA (1 << 31) 919 920 static int pqi_set_diag_rescan(struct pqi_ctrl_info *ctrl_info) 921 { 922 int rc; 923 struct bmic_diag_options *diag; 924 925 diag = kzalloc(sizeof(*diag), GFP_KERNEL); 926 if (!diag) 927 return -ENOMEM; 928 929 rc = pqi_send_ctrl_raid_request(ctrl_info, BMIC_SENSE_DIAG_OPTIONS, 930 diag, sizeof(*diag)); 931 if (rc) 932 goto out; 933 934 diag->options |= cpu_to_le32(PQI_FETCH_PTRAID_DATA); 935 936 rc = pqi_send_ctrl_raid_request(ctrl_info, BMIC_SET_DIAG_OPTIONS, diag, 937 sizeof(*diag)); 938 939 out: 940 kfree(diag); 941 942 return rc; 943 } 944 945 static inline int pqi_write_host_wellness(struct pqi_ctrl_info *ctrl_info, 946 void *buffer, size_t buffer_length) 947 { 948 return pqi_send_ctrl_raid_request(ctrl_info, BMIC_WRITE_HOST_WELLNESS, 949 buffer, buffer_length); 950 } 951 952 #pragma pack(1) 953 954 struct bmic_host_wellness_driver_version { 955 u8 start_tag[4]; 956 u8 driver_version_tag[2]; 957 __le16 driver_version_length; 958 char driver_version[32]; 959 u8 dont_write_tag[2]; 960 u8 end_tag[2]; 961 }; 962 963 #pragma pack() 964 965 static int pqi_write_driver_version_to_host_wellness( 966 struct pqi_ctrl_info *ctrl_info) 967 { 968 int rc; 969 struct bmic_host_wellness_driver_version *buffer; 970 size_t buffer_length; 971 972 buffer_length = sizeof(*buffer); 973 974 buffer = kmalloc(buffer_length, GFP_KERNEL); 975 if (!buffer) 976 return -ENOMEM; 977 978 buffer->start_tag[0] = '<'; 979 buffer->start_tag[1] = 'H'; 980 buffer->start_tag[2] = 'W'; 981 buffer->start_tag[3] = '>'; 982 buffer->driver_version_tag[0] = 'D'; 983 buffer->driver_version_tag[1] = 'V'; 984 put_unaligned_le16(sizeof(buffer->driver_version), 985 &buffer->driver_version_length); 986 strncpy(buffer->driver_version, "Linux " DRIVER_VERSION, 987 sizeof(buffer->driver_version) - 1); 988 buffer->driver_version[sizeof(buffer->driver_version) - 1] = '\0'; 989 buffer->dont_write_tag[0] = 'D'; 990 buffer->dont_write_tag[1] = 'W'; 991 buffer->end_tag[0] = 'Z'; 992 buffer->end_tag[1] = 'Z'; 993 994 rc = pqi_write_host_wellness(ctrl_info, buffer, buffer_length); 995 996 kfree(buffer); 997 998 return rc; 999 } 1000 1001 #pragma pack(1) 1002 1003 struct bmic_host_wellness_time { 1004 u8 start_tag[4]; 1005 u8 time_tag[2]; 1006 __le16 time_length; 1007 u8 time[8]; 1008 u8 dont_write_tag[2]; 1009 u8 end_tag[2]; 1010 }; 1011 1012 #pragma pack() 1013 1014 static int pqi_write_current_time_to_host_wellness( 1015 struct pqi_ctrl_info *ctrl_info) 1016 { 1017 int rc; 1018 struct bmic_host_wellness_time *buffer; 1019 size_t buffer_length; 1020 time64_t local_time; 1021 unsigned int year; 1022 struct tm tm; 1023 1024 buffer_length = sizeof(*buffer); 1025 1026 buffer = kmalloc(buffer_length, GFP_KERNEL); 1027 if (!buffer) 1028 return -ENOMEM; 1029 1030 buffer->start_tag[0] = '<'; 1031 buffer->start_tag[1] = 'H'; 1032 buffer->start_tag[2] = 'W'; 1033 buffer->start_tag[3] = '>'; 1034 buffer->time_tag[0] = 'T'; 1035 buffer->time_tag[1] = 'D'; 1036 put_unaligned_le16(sizeof(buffer->time), 1037 &buffer->time_length); 1038 1039 local_time = ktime_get_real_seconds(); 1040 time64_to_tm(local_time, -sys_tz.tz_minuteswest * 60, &tm); 1041 year = tm.tm_year + 1900; 1042 1043 buffer->time[0] = bin2bcd(tm.tm_hour); 1044 buffer->time[1] = bin2bcd(tm.tm_min); 1045 buffer->time[2] = bin2bcd(tm.tm_sec); 1046 buffer->time[3] = 0; 1047 buffer->time[4] = bin2bcd(tm.tm_mon + 1); 1048 buffer->time[5] = bin2bcd(tm.tm_mday); 1049 buffer->time[6] = bin2bcd(year / 100); 1050 buffer->time[7] = bin2bcd(year % 100); 1051 1052 buffer->dont_write_tag[0] = 'D'; 1053 buffer->dont_write_tag[1] = 'W'; 1054 buffer->end_tag[0] = 'Z'; 1055 buffer->end_tag[1] = 'Z'; 1056 1057 rc = pqi_write_host_wellness(ctrl_info, buffer, buffer_length); 1058 1059 kfree(buffer); 1060 1061 return rc; 1062 } 1063 1064 #define PQI_UPDATE_TIME_WORK_INTERVAL (24UL * 60 * 60 * HZ) 1065 1066 static void pqi_update_time_worker(struct work_struct *work) 1067 { 1068 int rc; 1069 struct pqi_ctrl_info *ctrl_info; 1070 1071 ctrl_info = container_of(to_delayed_work(work), struct pqi_ctrl_info, 1072 update_time_work); 1073 1074 rc = pqi_write_current_time_to_host_wellness(ctrl_info); 1075 if (rc) 1076 dev_warn(&ctrl_info->pci_dev->dev, 1077 "error updating time on controller\n"); 1078 1079 schedule_delayed_work(&ctrl_info->update_time_work, 1080 PQI_UPDATE_TIME_WORK_INTERVAL); 1081 } 1082 1083 static inline void pqi_schedule_update_time_worker(struct pqi_ctrl_info *ctrl_info) 1084 { 1085 schedule_delayed_work(&ctrl_info->update_time_work, 0); 1086 } 1087 1088 static inline void pqi_cancel_update_time_worker(struct pqi_ctrl_info *ctrl_info) 1089 { 1090 cancel_delayed_work_sync(&ctrl_info->update_time_work); 1091 } 1092 1093 static inline int pqi_report_luns(struct pqi_ctrl_info *ctrl_info, u8 cmd, void *buffer, 1094 size_t buffer_length) 1095 { 1096 return pqi_send_ctrl_raid_request(ctrl_info, cmd, buffer, buffer_length); 1097 } 1098 1099 static int pqi_report_phys_logical_luns(struct pqi_ctrl_info *ctrl_info, u8 cmd, void **buffer) 1100 { 1101 int rc; 1102 size_t lun_list_length; 1103 size_t lun_data_length; 1104 size_t new_lun_list_length; 1105 void *lun_data = NULL; 1106 struct report_lun_header *report_lun_header; 1107 1108 report_lun_header = kmalloc(sizeof(*report_lun_header), GFP_KERNEL); 1109 if (!report_lun_header) { 1110 rc = -ENOMEM; 1111 goto out; 1112 } 1113 1114 rc = pqi_report_luns(ctrl_info, cmd, report_lun_header, sizeof(*report_lun_header)); 1115 if (rc) 1116 goto out; 1117 1118 lun_list_length = get_unaligned_be32(&report_lun_header->list_length); 1119 1120 again: 1121 lun_data_length = sizeof(struct report_lun_header) + lun_list_length; 1122 1123 lun_data = kmalloc(lun_data_length, GFP_KERNEL); 1124 if (!lun_data) { 1125 rc = -ENOMEM; 1126 goto out; 1127 } 1128 1129 if (lun_list_length == 0) { 1130 memcpy(lun_data, report_lun_header, sizeof(*report_lun_header)); 1131 goto out; 1132 } 1133 1134 rc = pqi_report_luns(ctrl_info, cmd, lun_data, lun_data_length); 1135 if (rc) 1136 goto out; 1137 1138 new_lun_list_length = 1139 get_unaligned_be32(&((struct report_lun_header *)lun_data)->list_length); 1140 1141 if (new_lun_list_length > lun_list_length) { 1142 lun_list_length = new_lun_list_length; 1143 kfree(lun_data); 1144 goto again; 1145 } 1146 1147 out: 1148 kfree(report_lun_header); 1149 1150 if (rc) { 1151 kfree(lun_data); 1152 lun_data = NULL; 1153 } 1154 1155 *buffer = lun_data; 1156 1157 return rc; 1158 } 1159 1160 static inline int pqi_report_phys_luns(struct pqi_ctrl_info *ctrl_info, void **buffer) 1161 { 1162 int rc; 1163 unsigned int i; 1164 u8 rpl_response_format; 1165 u32 num_physicals; 1166 size_t rpl_16byte_wwid_list_length; 1167 void *rpl_list; 1168 struct report_lun_header *rpl_header; 1169 struct report_phys_lun_8byte_wwid_list *rpl_8byte_wwid_list; 1170 struct report_phys_lun_16byte_wwid_list *rpl_16byte_wwid_list; 1171 1172 rc = pqi_report_phys_logical_luns(ctrl_info, CISS_REPORT_PHYS, &rpl_list); 1173 if (rc) 1174 return rc; 1175 1176 if (ctrl_info->rpl_extended_format_4_5_supported) { 1177 rpl_header = rpl_list; 1178 rpl_response_format = rpl_header->flags & CISS_REPORT_PHYS_FLAG_EXTENDED_FORMAT_MASK; 1179 if (rpl_response_format == CISS_REPORT_PHYS_FLAG_EXTENDED_FORMAT_4) { 1180 *buffer = rpl_list; 1181 return 0; 1182 } else if (rpl_response_format != CISS_REPORT_PHYS_FLAG_EXTENDED_FORMAT_2) { 1183 dev_err(&ctrl_info->pci_dev->dev, 1184 "RPL returned unsupported data format %u\n", 1185 rpl_response_format); 1186 return -EINVAL; 1187 } else { 1188 dev_warn(&ctrl_info->pci_dev->dev, 1189 "RPL returned extended format 2 instead of 4\n"); 1190 } 1191 } 1192 1193 rpl_8byte_wwid_list = rpl_list; 1194 num_physicals = get_unaligned_be32(&rpl_8byte_wwid_list->header.list_length) / sizeof(rpl_8byte_wwid_list->lun_entries[0]); 1195 rpl_16byte_wwid_list_length = sizeof(struct report_lun_header) + (num_physicals * sizeof(struct report_phys_lun_16byte_wwid)); 1196 1197 rpl_16byte_wwid_list = kmalloc(rpl_16byte_wwid_list_length, GFP_KERNEL); 1198 if (!rpl_16byte_wwid_list) 1199 return -ENOMEM; 1200 1201 put_unaligned_be32(num_physicals * sizeof(struct report_phys_lun_16byte_wwid), 1202 &rpl_16byte_wwid_list->header.list_length); 1203 rpl_16byte_wwid_list->header.flags = rpl_8byte_wwid_list->header.flags; 1204 1205 for (i = 0; i < num_physicals; i++) { 1206 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)); 1207 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)); 1208 memset(&rpl_16byte_wwid_list->lun_entries[i].wwid[8], 0, 8); 1209 rpl_16byte_wwid_list->lun_entries[i].device_type = rpl_8byte_wwid_list->lun_entries[i].device_type; 1210 rpl_16byte_wwid_list->lun_entries[i].device_flags = rpl_8byte_wwid_list->lun_entries[i].device_flags; 1211 rpl_16byte_wwid_list->lun_entries[i].lun_count = rpl_8byte_wwid_list->lun_entries[i].lun_count; 1212 rpl_16byte_wwid_list->lun_entries[i].redundant_paths = rpl_8byte_wwid_list->lun_entries[i].redundant_paths; 1213 rpl_16byte_wwid_list->lun_entries[i].aio_handle = rpl_8byte_wwid_list->lun_entries[i].aio_handle; 1214 } 1215 1216 kfree(rpl_8byte_wwid_list); 1217 *buffer = rpl_16byte_wwid_list; 1218 1219 return 0; 1220 } 1221 1222 static inline int pqi_report_logical_luns(struct pqi_ctrl_info *ctrl_info, void **buffer) 1223 { 1224 return pqi_report_phys_logical_luns(ctrl_info, CISS_REPORT_LOG, buffer); 1225 } 1226 1227 static int pqi_get_device_lists(struct pqi_ctrl_info *ctrl_info, 1228 struct report_phys_lun_16byte_wwid_list **physdev_list, 1229 struct report_log_lun_list **logdev_list) 1230 { 1231 int rc; 1232 size_t logdev_list_length; 1233 size_t logdev_data_length; 1234 struct report_log_lun_list *internal_logdev_list; 1235 struct report_log_lun_list *logdev_data; 1236 struct report_lun_header report_lun_header; 1237 1238 rc = pqi_report_phys_luns(ctrl_info, (void **)physdev_list); 1239 if (rc) 1240 dev_err(&ctrl_info->pci_dev->dev, 1241 "report physical LUNs failed\n"); 1242 1243 rc = pqi_report_logical_luns(ctrl_info, (void **)logdev_list); 1244 if (rc) 1245 dev_err(&ctrl_info->pci_dev->dev, 1246 "report logical LUNs failed\n"); 1247 1248 /* 1249 * Tack the controller itself onto the end of the logical device list. 1250 */ 1251 1252 logdev_data = *logdev_list; 1253 1254 if (logdev_data) { 1255 logdev_list_length = 1256 get_unaligned_be32(&logdev_data->header.list_length); 1257 } else { 1258 memset(&report_lun_header, 0, sizeof(report_lun_header)); 1259 logdev_data = 1260 (struct report_log_lun_list *)&report_lun_header; 1261 logdev_list_length = 0; 1262 } 1263 1264 logdev_data_length = sizeof(struct report_lun_header) + 1265 logdev_list_length; 1266 1267 internal_logdev_list = kmalloc(logdev_data_length + 1268 sizeof(struct report_log_lun), GFP_KERNEL); 1269 if (!internal_logdev_list) { 1270 kfree(*logdev_list); 1271 *logdev_list = NULL; 1272 return -ENOMEM; 1273 } 1274 1275 memcpy(internal_logdev_list, logdev_data, logdev_data_length); 1276 memset((u8 *)internal_logdev_list + logdev_data_length, 0, 1277 sizeof(struct report_log_lun)); 1278 put_unaligned_be32(logdev_list_length + 1279 sizeof(struct report_log_lun), 1280 &internal_logdev_list->header.list_length); 1281 1282 kfree(*logdev_list); 1283 *logdev_list = internal_logdev_list; 1284 1285 return 0; 1286 } 1287 1288 static inline void pqi_set_bus_target_lun(struct pqi_scsi_dev *device, 1289 int bus, int target, int lun) 1290 { 1291 device->bus = bus; 1292 device->target = target; 1293 device->lun = lun; 1294 } 1295 1296 static void pqi_assign_bus_target_lun(struct pqi_scsi_dev *device) 1297 { 1298 u8 *scsi3addr; 1299 u32 lunid; 1300 int bus; 1301 int target; 1302 int lun; 1303 1304 scsi3addr = device->scsi3addr; 1305 lunid = get_unaligned_le32(scsi3addr); 1306 1307 if (pqi_is_hba_lunid(scsi3addr)) { 1308 /* The specified device is the controller. */ 1309 pqi_set_bus_target_lun(device, PQI_HBA_BUS, 0, lunid & 0x3fff); 1310 device->target_lun_valid = true; 1311 return; 1312 } 1313 1314 if (pqi_is_logical_device(device)) { 1315 if (device->is_external_raid_device) { 1316 bus = PQI_EXTERNAL_RAID_VOLUME_BUS; 1317 target = (lunid >> 16) & 0x3fff; 1318 lun = lunid & 0xff; 1319 } else { 1320 bus = PQI_RAID_VOLUME_BUS; 1321 target = 0; 1322 lun = lunid & 0x3fff; 1323 } 1324 pqi_set_bus_target_lun(device, bus, target, lun); 1325 device->target_lun_valid = true; 1326 return; 1327 } 1328 1329 /* 1330 * Defer target and LUN assignment for non-controller physical devices 1331 * because the SAS transport layer will make these assignments later. 1332 */ 1333 pqi_set_bus_target_lun(device, PQI_PHYSICAL_DEVICE_BUS, 0, 0); 1334 } 1335 1336 static void pqi_get_raid_level(struct pqi_ctrl_info *ctrl_info, 1337 struct pqi_scsi_dev *device) 1338 { 1339 int rc; 1340 u8 raid_level; 1341 u8 *buffer; 1342 1343 raid_level = SA_RAID_UNKNOWN; 1344 1345 buffer = kmalloc(64, GFP_KERNEL); 1346 if (buffer) { 1347 rc = pqi_scsi_inquiry(ctrl_info, device->scsi3addr, 1348 VPD_PAGE | CISS_VPD_LV_DEVICE_GEOMETRY, buffer, 64); 1349 if (rc == 0) { 1350 raid_level = buffer[8]; 1351 if (raid_level > SA_RAID_MAX) 1352 raid_level = SA_RAID_UNKNOWN; 1353 } 1354 kfree(buffer); 1355 } 1356 1357 device->raid_level = raid_level; 1358 } 1359 1360 static int pqi_validate_raid_map(struct pqi_ctrl_info *ctrl_info, 1361 struct pqi_scsi_dev *device, struct raid_map *raid_map) 1362 { 1363 char *err_msg; 1364 u32 raid_map_size; 1365 u32 r5or6_blocks_per_row; 1366 1367 raid_map_size = get_unaligned_le32(&raid_map->structure_size); 1368 1369 if (raid_map_size < offsetof(struct raid_map, disk_data)) { 1370 err_msg = "RAID map too small"; 1371 goto bad_raid_map; 1372 } 1373 1374 if (device->raid_level == SA_RAID_1) { 1375 if (get_unaligned_le16(&raid_map->layout_map_count) != 2) { 1376 err_msg = "invalid RAID-1 map"; 1377 goto bad_raid_map; 1378 } 1379 } else if (device->raid_level == SA_RAID_TRIPLE) { 1380 if (get_unaligned_le16(&raid_map->layout_map_count) != 3) { 1381 err_msg = "invalid RAID-1(Triple) map"; 1382 goto bad_raid_map; 1383 } 1384 } else if ((device->raid_level == SA_RAID_5 || 1385 device->raid_level == SA_RAID_6) && 1386 get_unaligned_le16(&raid_map->layout_map_count) > 1) { 1387 /* RAID 50/60 */ 1388 r5or6_blocks_per_row = 1389 get_unaligned_le16(&raid_map->strip_size) * 1390 get_unaligned_le16(&raid_map->data_disks_per_row); 1391 if (r5or6_blocks_per_row == 0) { 1392 err_msg = "invalid RAID-5 or RAID-6 map"; 1393 goto bad_raid_map; 1394 } 1395 } 1396 1397 return 0; 1398 1399 bad_raid_map: 1400 dev_warn(&ctrl_info->pci_dev->dev, 1401 "logical device %08x%08x %s\n", 1402 *((u32 *)&device->scsi3addr), 1403 *((u32 *)&device->scsi3addr[4]), err_msg); 1404 1405 return -EINVAL; 1406 } 1407 1408 static int pqi_get_raid_map(struct pqi_ctrl_info *ctrl_info, 1409 struct pqi_scsi_dev *device) 1410 { 1411 int rc; 1412 u32 raid_map_size; 1413 struct raid_map *raid_map; 1414 1415 raid_map = kmalloc(sizeof(*raid_map), GFP_KERNEL); 1416 if (!raid_map) 1417 return -ENOMEM; 1418 1419 rc = pqi_send_scsi_raid_request(ctrl_info, CISS_GET_RAID_MAP, 1420 device->scsi3addr, raid_map, sizeof(*raid_map), 0, NULL); 1421 if (rc) 1422 goto error; 1423 1424 raid_map_size = get_unaligned_le32(&raid_map->structure_size); 1425 1426 if (raid_map_size > sizeof(*raid_map)) { 1427 1428 kfree(raid_map); 1429 1430 raid_map = kmalloc(raid_map_size, GFP_KERNEL); 1431 if (!raid_map) 1432 return -ENOMEM; 1433 1434 rc = pqi_send_scsi_raid_request(ctrl_info, CISS_GET_RAID_MAP, 1435 device->scsi3addr, raid_map, raid_map_size, 0, NULL); 1436 if (rc) 1437 goto error; 1438 1439 if (get_unaligned_le32(&raid_map->structure_size) 1440 != raid_map_size) { 1441 dev_warn(&ctrl_info->pci_dev->dev, 1442 "requested %u bytes, received %u bytes\n", 1443 raid_map_size, 1444 get_unaligned_le32(&raid_map->structure_size)); 1445 rc = -EINVAL; 1446 goto error; 1447 } 1448 } 1449 1450 rc = pqi_validate_raid_map(ctrl_info, device, raid_map); 1451 if (rc) 1452 goto error; 1453 1454 device->raid_map = raid_map; 1455 1456 return 0; 1457 1458 error: 1459 kfree(raid_map); 1460 1461 return rc; 1462 } 1463 1464 static void pqi_set_max_transfer_encrypted(struct pqi_ctrl_info *ctrl_info, 1465 struct pqi_scsi_dev *device) 1466 { 1467 if (!ctrl_info->lv_drive_type_mix_valid) { 1468 device->max_transfer_encrypted = ~0; 1469 return; 1470 } 1471 1472 switch (LV_GET_DRIVE_TYPE_MIX(device->scsi3addr)) { 1473 case LV_DRIVE_TYPE_MIX_SAS_HDD_ONLY: 1474 case LV_DRIVE_TYPE_MIX_SATA_HDD_ONLY: 1475 case LV_DRIVE_TYPE_MIX_SAS_OR_SATA_SSD_ONLY: 1476 case LV_DRIVE_TYPE_MIX_SAS_SSD_ONLY: 1477 case LV_DRIVE_TYPE_MIX_SATA_SSD_ONLY: 1478 case LV_DRIVE_TYPE_MIX_SAS_ONLY: 1479 case LV_DRIVE_TYPE_MIX_SATA_ONLY: 1480 device->max_transfer_encrypted = 1481 ctrl_info->max_transfer_encrypted_sas_sata; 1482 break; 1483 case LV_DRIVE_TYPE_MIX_NVME_ONLY: 1484 device->max_transfer_encrypted = 1485 ctrl_info->max_transfer_encrypted_nvme; 1486 break; 1487 case LV_DRIVE_TYPE_MIX_UNKNOWN: 1488 case LV_DRIVE_TYPE_MIX_NO_RESTRICTION: 1489 default: 1490 device->max_transfer_encrypted = 1491 min(ctrl_info->max_transfer_encrypted_sas_sata, 1492 ctrl_info->max_transfer_encrypted_nvme); 1493 break; 1494 } 1495 } 1496 1497 static void pqi_get_raid_bypass_status(struct pqi_ctrl_info *ctrl_info, 1498 struct pqi_scsi_dev *device) 1499 { 1500 int rc; 1501 u8 *buffer; 1502 u8 bypass_status; 1503 1504 buffer = kmalloc(64, GFP_KERNEL); 1505 if (!buffer) 1506 return; 1507 1508 rc = pqi_scsi_inquiry(ctrl_info, device->scsi3addr, 1509 VPD_PAGE | CISS_VPD_LV_BYPASS_STATUS, buffer, 64); 1510 if (rc) 1511 goto out; 1512 1513 #define RAID_BYPASS_STATUS 4 1514 #define RAID_BYPASS_CONFIGURED 0x1 1515 #define RAID_BYPASS_ENABLED 0x2 1516 1517 bypass_status = buffer[RAID_BYPASS_STATUS]; 1518 device->raid_bypass_configured = 1519 (bypass_status & RAID_BYPASS_CONFIGURED) != 0; 1520 if (device->raid_bypass_configured && 1521 (bypass_status & RAID_BYPASS_ENABLED) && 1522 pqi_get_raid_map(ctrl_info, device) == 0) { 1523 device->raid_bypass_enabled = true; 1524 if (get_unaligned_le16(&device->raid_map->flags) & 1525 RAID_MAP_ENCRYPTION_ENABLED) 1526 pqi_set_max_transfer_encrypted(ctrl_info, device); 1527 } 1528 1529 out: 1530 kfree(buffer); 1531 } 1532 1533 /* 1534 * Use vendor-specific VPD to determine online/offline status of a volume. 1535 */ 1536 1537 static void pqi_get_volume_status(struct pqi_ctrl_info *ctrl_info, 1538 struct pqi_scsi_dev *device) 1539 { 1540 int rc; 1541 size_t page_length; 1542 u8 volume_status = CISS_LV_STATUS_UNAVAILABLE; 1543 bool volume_offline = true; 1544 u32 volume_flags; 1545 struct ciss_vpd_logical_volume_status *vpd; 1546 1547 vpd = kmalloc(sizeof(*vpd), GFP_KERNEL); 1548 if (!vpd) 1549 goto no_buffer; 1550 1551 rc = pqi_scsi_inquiry(ctrl_info, device->scsi3addr, 1552 VPD_PAGE | CISS_VPD_LV_STATUS, vpd, sizeof(*vpd)); 1553 if (rc) 1554 goto out; 1555 1556 if (vpd->page_code != CISS_VPD_LV_STATUS) 1557 goto out; 1558 1559 page_length = offsetof(struct ciss_vpd_logical_volume_status, 1560 volume_status) + vpd->page_length; 1561 if (page_length < sizeof(*vpd)) 1562 goto out; 1563 1564 volume_status = vpd->volume_status; 1565 volume_flags = get_unaligned_be32(&vpd->flags); 1566 volume_offline = (volume_flags & CISS_LV_FLAGS_NO_HOST_IO) != 0; 1567 1568 out: 1569 kfree(vpd); 1570 no_buffer: 1571 device->volume_status = volume_status; 1572 device->volume_offline = volume_offline; 1573 } 1574 1575 #define PQI_DEVICE_NCQ_PRIO_SUPPORTED 0x01 1576 #define PQI_DEVICE_PHY_MAP_SUPPORTED 0x10 1577 1578 static int pqi_get_physical_device_info(struct pqi_ctrl_info *ctrl_info, 1579 struct pqi_scsi_dev *device, 1580 struct bmic_identify_physical_device *id_phys) 1581 { 1582 int rc; 1583 1584 memset(id_phys, 0, sizeof(*id_phys)); 1585 1586 rc = pqi_identify_physical_device(ctrl_info, device, 1587 id_phys, sizeof(*id_phys)); 1588 if (rc) { 1589 device->queue_depth = PQI_PHYSICAL_DISK_DEFAULT_MAX_QUEUE_DEPTH; 1590 return rc; 1591 } 1592 1593 scsi_sanitize_inquiry_string(&id_phys->model[0], 8); 1594 scsi_sanitize_inquiry_string(&id_phys->model[8], 16); 1595 1596 memcpy(device->vendor, &id_phys->model[0], sizeof(device->vendor)); 1597 memcpy(device->model, &id_phys->model[8], sizeof(device->model)); 1598 1599 device->box_index = id_phys->box_index; 1600 device->phys_box_on_bus = id_phys->phys_box_on_bus; 1601 device->phy_connected_dev_type = id_phys->phy_connected_dev_type[0]; 1602 device->queue_depth = 1603 get_unaligned_le16(&id_phys->current_queue_depth_limit); 1604 device->active_path_index = id_phys->active_path_number; 1605 device->path_map = id_phys->redundant_path_present_map; 1606 memcpy(&device->box, 1607 &id_phys->alternate_paths_phys_box_on_port, 1608 sizeof(device->box)); 1609 memcpy(&device->phys_connector, 1610 &id_phys->alternate_paths_phys_connector, 1611 sizeof(device->phys_connector)); 1612 device->bay = id_phys->phys_bay_in_box; 1613 device->multi_lun_device_lun_count = id_phys->multi_lun_device_lun_count; 1614 if (!device->multi_lun_device_lun_count) 1615 device->multi_lun_device_lun_count = 1; 1616 if ((id_phys->even_more_flags & PQI_DEVICE_PHY_MAP_SUPPORTED) && 1617 id_phys->phy_count) 1618 device->phy_id = 1619 id_phys->phy_to_phy_map[device->active_path_index]; 1620 else 1621 device->phy_id = 0xFF; 1622 1623 device->ncq_prio_support = 1624 ((get_unaligned_le32(&id_phys->misc_drive_flags) >> 16) & 1625 PQI_DEVICE_NCQ_PRIO_SUPPORTED); 1626 1627 return 0; 1628 } 1629 1630 static int pqi_get_logical_device_info(struct pqi_ctrl_info *ctrl_info, 1631 struct pqi_scsi_dev *device) 1632 { 1633 int rc; 1634 u8 *buffer; 1635 1636 buffer = kmalloc(64, GFP_KERNEL); 1637 if (!buffer) 1638 return -ENOMEM; 1639 1640 /* Send an inquiry to the device to see what it is. */ 1641 rc = pqi_scsi_inquiry(ctrl_info, device->scsi3addr, 0, buffer, 64); 1642 if (rc) 1643 goto out; 1644 1645 scsi_sanitize_inquiry_string(&buffer[8], 8); 1646 scsi_sanitize_inquiry_string(&buffer[16], 16); 1647 1648 device->devtype = buffer[0] & 0x1f; 1649 memcpy(device->vendor, &buffer[8], sizeof(device->vendor)); 1650 memcpy(device->model, &buffer[16], sizeof(device->model)); 1651 1652 if (device->devtype == TYPE_DISK) { 1653 if (device->is_external_raid_device) { 1654 device->raid_level = SA_RAID_UNKNOWN; 1655 device->volume_status = CISS_LV_OK; 1656 device->volume_offline = false; 1657 } else { 1658 pqi_get_raid_level(ctrl_info, device); 1659 pqi_get_raid_bypass_status(ctrl_info, device); 1660 pqi_get_volume_status(ctrl_info, device); 1661 } 1662 } 1663 1664 out: 1665 kfree(buffer); 1666 1667 return rc; 1668 } 1669 1670 /* 1671 * Prevent adding drive to OS for some corner cases such as a drive 1672 * undergoing a sanitize operation. Some OSes will continue to poll 1673 * the drive until the sanitize completes, which can take hours, 1674 * resulting in long bootup delays. Commands such as TUR, READ_CAP 1675 * are allowed, but READ/WRITE cause check condition. So the OS 1676 * cannot check/read the partition table. 1677 * Note: devices that have completed sanitize must be re-enabled 1678 * using the management utility. 1679 */ 1680 static bool pqi_keep_device_offline(struct pqi_ctrl_info *ctrl_info, 1681 struct pqi_scsi_dev *device) 1682 { 1683 u8 scsi_status; 1684 int rc; 1685 enum dma_data_direction dir; 1686 char *buffer; 1687 int buffer_length = 64; 1688 size_t sense_data_length; 1689 struct scsi_sense_hdr sshdr; 1690 struct pqi_raid_path_request request; 1691 struct pqi_raid_error_info error_info; 1692 bool offline = false; /* Assume keep online */ 1693 1694 /* Do not check controllers. */ 1695 if (pqi_is_hba_lunid(device->scsi3addr)) 1696 return false; 1697 1698 /* Do not check LVs. */ 1699 if (pqi_is_logical_device(device)) 1700 return false; 1701 1702 buffer = kmalloc(buffer_length, GFP_KERNEL); 1703 if (!buffer) 1704 return false; /* Assume not offline */ 1705 1706 /* Check for SANITIZE in progress using TUR */ 1707 rc = pqi_build_raid_path_request(ctrl_info, &request, 1708 TEST_UNIT_READY, RAID_CTLR_LUNID, buffer, 1709 buffer_length, 0, &dir); 1710 if (rc) 1711 goto out; /* Assume not offline */ 1712 1713 memcpy(request.lun_number, device->scsi3addr, sizeof(request.lun_number)); 1714 1715 rc = pqi_submit_raid_request_synchronous(ctrl_info, &request.header, 0, &error_info); 1716 1717 if (rc) 1718 goto out; /* Assume not offline */ 1719 1720 scsi_status = error_info.status; 1721 sense_data_length = get_unaligned_le16(&error_info.sense_data_length); 1722 if (sense_data_length == 0) 1723 sense_data_length = 1724 get_unaligned_le16(&error_info.response_data_length); 1725 if (sense_data_length) { 1726 if (sense_data_length > sizeof(error_info.data)) 1727 sense_data_length = sizeof(error_info.data); 1728 1729 /* 1730 * Check for sanitize in progress: asc:0x04, ascq: 0x1b 1731 */ 1732 if (scsi_status == SAM_STAT_CHECK_CONDITION && 1733 scsi_normalize_sense(error_info.data, 1734 sense_data_length, &sshdr) && 1735 sshdr.sense_key == NOT_READY && 1736 sshdr.asc == 0x04 && 1737 sshdr.ascq == 0x1b) { 1738 device->device_offline = true; 1739 offline = true; 1740 goto out; /* Keep device offline */ 1741 } 1742 } 1743 1744 out: 1745 kfree(buffer); 1746 return offline; 1747 } 1748 1749 static int pqi_get_device_info(struct pqi_ctrl_info *ctrl_info, 1750 struct pqi_scsi_dev *device, 1751 struct bmic_identify_physical_device *id_phys) 1752 { 1753 int rc; 1754 1755 if (device->is_expander_smp_device) 1756 return 0; 1757 1758 if (pqi_is_logical_device(device)) 1759 rc = pqi_get_logical_device_info(ctrl_info, device); 1760 else 1761 rc = pqi_get_physical_device_info(ctrl_info, device, id_phys); 1762 1763 return rc; 1764 } 1765 1766 static void pqi_show_volume_status(struct pqi_ctrl_info *ctrl_info, 1767 struct pqi_scsi_dev *device) 1768 { 1769 char *status; 1770 static const char unknown_state_str[] = 1771 "Volume is in an unknown state (%u)"; 1772 char unknown_state_buffer[sizeof(unknown_state_str) + 10]; 1773 1774 switch (device->volume_status) { 1775 case CISS_LV_OK: 1776 status = "Volume online"; 1777 break; 1778 case CISS_LV_FAILED: 1779 status = "Volume failed"; 1780 break; 1781 case CISS_LV_NOT_CONFIGURED: 1782 status = "Volume not configured"; 1783 break; 1784 case CISS_LV_DEGRADED: 1785 status = "Volume degraded"; 1786 break; 1787 case CISS_LV_READY_FOR_RECOVERY: 1788 status = "Volume ready for recovery operation"; 1789 break; 1790 case CISS_LV_UNDERGOING_RECOVERY: 1791 status = "Volume undergoing recovery"; 1792 break; 1793 case CISS_LV_WRONG_PHYSICAL_DRIVE_REPLACED: 1794 status = "Wrong physical drive was replaced"; 1795 break; 1796 case CISS_LV_PHYSICAL_DRIVE_CONNECTION_PROBLEM: 1797 status = "A physical drive not properly connected"; 1798 break; 1799 case CISS_LV_HARDWARE_OVERHEATING: 1800 status = "Hardware is overheating"; 1801 break; 1802 case CISS_LV_HARDWARE_HAS_OVERHEATED: 1803 status = "Hardware has overheated"; 1804 break; 1805 case CISS_LV_UNDERGOING_EXPANSION: 1806 status = "Volume undergoing expansion"; 1807 break; 1808 case CISS_LV_NOT_AVAILABLE: 1809 status = "Volume waiting for transforming volume"; 1810 break; 1811 case CISS_LV_QUEUED_FOR_EXPANSION: 1812 status = "Volume queued for expansion"; 1813 break; 1814 case CISS_LV_DISABLED_SCSI_ID_CONFLICT: 1815 status = "Volume disabled due to SCSI ID conflict"; 1816 break; 1817 case CISS_LV_EJECTED: 1818 status = "Volume has been ejected"; 1819 break; 1820 case CISS_LV_UNDERGOING_ERASE: 1821 status = "Volume undergoing background erase"; 1822 break; 1823 case CISS_LV_READY_FOR_PREDICTIVE_SPARE_REBUILD: 1824 status = "Volume ready for predictive spare rebuild"; 1825 break; 1826 case CISS_LV_UNDERGOING_RPI: 1827 status = "Volume undergoing rapid parity initialization"; 1828 break; 1829 case CISS_LV_PENDING_RPI: 1830 status = "Volume queued for rapid parity initialization"; 1831 break; 1832 case CISS_LV_ENCRYPTED_NO_KEY: 1833 status = "Encrypted volume inaccessible - key not present"; 1834 break; 1835 case CISS_LV_UNDERGOING_ENCRYPTION: 1836 status = "Volume undergoing encryption process"; 1837 break; 1838 case CISS_LV_UNDERGOING_ENCRYPTION_REKEYING: 1839 status = "Volume undergoing encryption re-keying process"; 1840 break; 1841 case CISS_LV_ENCRYPTED_IN_NON_ENCRYPTED_CONTROLLER: 1842 status = "Volume encrypted but encryption is disabled"; 1843 break; 1844 case CISS_LV_PENDING_ENCRYPTION: 1845 status = "Volume pending migration to encrypted state"; 1846 break; 1847 case CISS_LV_PENDING_ENCRYPTION_REKEYING: 1848 status = "Volume pending encryption rekeying"; 1849 break; 1850 case CISS_LV_NOT_SUPPORTED: 1851 status = "Volume not supported on this controller"; 1852 break; 1853 case CISS_LV_STATUS_UNAVAILABLE: 1854 status = "Volume status not available"; 1855 break; 1856 default: 1857 snprintf(unknown_state_buffer, sizeof(unknown_state_buffer), 1858 unknown_state_str, device->volume_status); 1859 status = unknown_state_buffer; 1860 break; 1861 } 1862 1863 dev_info(&ctrl_info->pci_dev->dev, 1864 "scsi %d:%d:%d:%d %s\n", 1865 ctrl_info->scsi_host->host_no, 1866 device->bus, device->target, device->lun, status); 1867 } 1868 1869 static void pqi_rescan_worker(struct work_struct *work) 1870 { 1871 struct pqi_ctrl_info *ctrl_info; 1872 1873 ctrl_info = container_of(to_delayed_work(work), struct pqi_ctrl_info, 1874 rescan_work); 1875 1876 pqi_scan_scsi_devices(ctrl_info); 1877 } 1878 1879 static int pqi_add_device(struct pqi_ctrl_info *ctrl_info, 1880 struct pqi_scsi_dev *device) 1881 { 1882 int rc; 1883 1884 if (pqi_is_logical_device(device)) 1885 rc = scsi_add_device(ctrl_info->scsi_host, device->bus, 1886 device->target, device->lun); 1887 else 1888 rc = pqi_add_sas_device(ctrl_info->sas_host, device); 1889 1890 return rc; 1891 } 1892 1893 #define PQI_REMOVE_DEVICE_PENDING_IO_TIMEOUT_MSECS (20 * 1000) 1894 1895 static inline void pqi_remove_device(struct pqi_ctrl_info *ctrl_info, struct pqi_scsi_dev *device) 1896 { 1897 int rc; 1898 int lun; 1899 1900 for (lun = 0; lun < device->multi_lun_device_lun_count; lun++) { 1901 rc = pqi_device_wait_for_pending_io(ctrl_info, device, lun, 1902 PQI_REMOVE_DEVICE_PENDING_IO_TIMEOUT_MSECS); 1903 if (rc) 1904 dev_err(&ctrl_info->pci_dev->dev, 1905 "scsi %d:%d:%d:%d removing device with %d outstanding command(s)\n", 1906 ctrl_info->scsi_host->host_no, device->bus, 1907 device->target, lun, 1908 atomic_read(&device->scsi_cmds_outstanding[lun])); 1909 } 1910 1911 if (pqi_is_logical_device(device)) 1912 scsi_remove_device(device->sdev); 1913 else 1914 pqi_remove_sas_device(device); 1915 1916 pqi_device_remove_start(device); 1917 } 1918 1919 /* Assumes the SCSI device list lock is held. */ 1920 1921 static struct pqi_scsi_dev *pqi_find_scsi_dev(struct pqi_ctrl_info *ctrl_info, 1922 int bus, int target, int lun) 1923 { 1924 struct pqi_scsi_dev *device; 1925 1926 list_for_each_entry(device, &ctrl_info->scsi_device_list, scsi_device_list_entry) 1927 if (device->bus == bus && device->target == target && device->lun == lun) 1928 return device; 1929 1930 return NULL; 1931 } 1932 1933 static inline bool pqi_device_equal(struct pqi_scsi_dev *dev1, struct pqi_scsi_dev *dev2) 1934 { 1935 if (dev1->is_physical_device != dev2->is_physical_device) 1936 return false; 1937 1938 if (dev1->is_physical_device) 1939 return memcmp(dev1->wwid, dev2->wwid, sizeof(dev1->wwid)) == 0; 1940 1941 return memcmp(dev1->volume_id, dev2->volume_id, sizeof(dev1->volume_id)) == 0; 1942 } 1943 1944 enum pqi_find_result { 1945 DEVICE_NOT_FOUND, 1946 DEVICE_CHANGED, 1947 DEVICE_SAME, 1948 }; 1949 1950 static enum pqi_find_result pqi_scsi_find_entry(struct pqi_ctrl_info *ctrl_info, 1951 struct pqi_scsi_dev *device_to_find, struct pqi_scsi_dev **matching_device) 1952 { 1953 struct pqi_scsi_dev *device; 1954 1955 list_for_each_entry(device, &ctrl_info->scsi_device_list, scsi_device_list_entry) { 1956 if (pqi_scsi3addr_equal(device_to_find->scsi3addr, device->scsi3addr)) { 1957 *matching_device = device; 1958 if (pqi_device_equal(device_to_find, device)) { 1959 if (device_to_find->volume_offline) 1960 return DEVICE_CHANGED; 1961 return DEVICE_SAME; 1962 } 1963 return DEVICE_CHANGED; 1964 } 1965 } 1966 1967 return DEVICE_NOT_FOUND; 1968 } 1969 1970 static inline const char *pqi_device_type(struct pqi_scsi_dev *device) 1971 { 1972 if (device->is_expander_smp_device) 1973 return "Enclosure SMP "; 1974 1975 return scsi_device_type(device->devtype); 1976 } 1977 1978 #define PQI_DEV_INFO_BUFFER_LENGTH 128 1979 1980 static void pqi_dev_info(struct pqi_ctrl_info *ctrl_info, 1981 char *action, struct pqi_scsi_dev *device) 1982 { 1983 ssize_t count; 1984 char buffer[PQI_DEV_INFO_BUFFER_LENGTH]; 1985 1986 count = scnprintf(buffer, PQI_DEV_INFO_BUFFER_LENGTH, 1987 "%d:%d:", ctrl_info->scsi_host->host_no, device->bus); 1988 1989 if (device->target_lun_valid) 1990 count += scnprintf(buffer + count, 1991 PQI_DEV_INFO_BUFFER_LENGTH - count, 1992 "%d:%d", 1993 device->target, 1994 device->lun); 1995 else 1996 count += scnprintf(buffer + count, 1997 PQI_DEV_INFO_BUFFER_LENGTH - count, 1998 "-:-"); 1999 2000 if (pqi_is_logical_device(device)) 2001 count += scnprintf(buffer + count, 2002 PQI_DEV_INFO_BUFFER_LENGTH - count, 2003 " %08x%08x", 2004 *((u32 *)&device->scsi3addr), 2005 *((u32 *)&device->scsi3addr[4])); 2006 else 2007 count += scnprintf(buffer + count, 2008 PQI_DEV_INFO_BUFFER_LENGTH - count, 2009 " %016llx%016llx", 2010 get_unaligned_be64(&device->wwid[0]), 2011 get_unaligned_be64(&device->wwid[8])); 2012 2013 count += scnprintf(buffer + count, PQI_DEV_INFO_BUFFER_LENGTH - count, 2014 " %s %.8s %.16s ", 2015 pqi_device_type(device), 2016 device->vendor, 2017 device->model); 2018 2019 if (pqi_is_logical_device(device)) { 2020 if (device->devtype == TYPE_DISK) 2021 count += scnprintf(buffer + count, 2022 PQI_DEV_INFO_BUFFER_LENGTH - count, 2023 "SSDSmartPathCap%c En%c %-12s", 2024 device->raid_bypass_configured ? '+' : '-', 2025 device->raid_bypass_enabled ? '+' : '-', 2026 pqi_raid_level_to_string(device->raid_level)); 2027 } else { 2028 count += scnprintf(buffer + count, 2029 PQI_DEV_INFO_BUFFER_LENGTH - count, 2030 "AIO%c", device->aio_enabled ? '+' : '-'); 2031 if (device->devtype == TYPE_DISK || 2032 device->devtype == TYPE_ZBC) 2033 count += scnprintf(buffer + count, 2034 PQI_DEV_INFO_BUFFER_LENGTH - count, 2035 " qd=%-6d", device->queue_depth); 2036 } 2037 2038 dev_info(&ctrl_info->pci_dev->dev, "%s %s\n", action, buffer); 2039 } 2040 2041 static bool pqi_raid_maps_equal(struct raid_map *raid_map1, struct raid_map *raid_map2) 2042 { 2043 u32 raid_map1_size; 2044 u32 raid_map2_size; 2045 2046 if (raid_map1 == NULL || raid_map2 == NULL) 2047 return raid_map1 == raid_map2; 2048 2049 raid_map1_size = get_unaligned_le32(&raid_map1->structure_size); 2050 raid_map2_size = get_unaligned_le32(&raid_map2->structure_size); 2051 2052 if (raid_map1_size != raid_map2_size) 2053 return false; 2054 2055 return memcmp(raid_map1, raid_map2, raid_map1_size) == 0; 2056 } 2057 2058 /* Assumes the SCSI device list lock is held. */ 2059 2060 static void pqi_scsi_update_device(struct pqi_ctrl_info *ctrl_info, 2061 struct pqi_scsi_dev *existing_device, struct pqi_scsi_dev *new_device) 2062 { 2063 existing_device->device_type = new_device->device_type; 2064 existing_device->bus = new_device->bus; 2065 if (new_device->target_lun_valid) { 2066 existing_device->target = new_device->target; 2067 existing_device->lun = new_device->lun; 2068 existing_device->target_lun_valid = true; 2069 } 2070 2071 /* By definition, the scsi3addr and wwid fields are already the same. */ 2072 2073 existing_device->is_physical_device = new_device->is_physical_device; 2074 memcpy(existing_device->vendor, new_device->vendor, sizeof(existing_device->vendor)); 2075 memcpy(existing_device->model, new_device->model, sizeof(existing_device->model)); 2076 existing_device->sas_address = new_device->sas_address; 2077 existing_device->queue_depth = new_device->queue_depth; 2078 existing_device->device_offline = false; 2079 2080 if (pqi_is_logical_device(existing_device)) { 2081 existing_device->is_external_raid_device = new_device->is_external_raid_device; 2082 2083 if (existing_device->devtype == TYPE_DISK) { 2084 existing_device->raid_level = new_device->raid_level; 2085 existing_device->volume_status = new_device->volume_status; 2086 if (ctrl_info->logical_volume_rescan_needed) 2087 existing_device->rescan = true; 2088 memset(existing_device->next_bypass_group, 0, sizeof(existing_device->next_bypass_group)); 2089 if (!pqi_raid_maps_equal(existing_device->raid_map, new_device->raid_map)) { 2090 kfree(existing_device->raid_map); 2091 existing_device->raid_map = new_device->raid_map; 2092 /* To prevent this from being freed later. */ 2093 new_device->raid_map = NULL; 2094 } 2095 existing_device->raid_bypass_configured = new_device->raid_bypass_configured; 2096 existing_device->raid_bypass_enabled = new_device->raid_bypass_enabled; 2097 } 2098 } else { 2099 existing_device->aio_enabled = new_device->aio_enabled; 2100 existing_device->aio_handle = new_device->aio_handle; 2101 existing_device->is_expander_smp_device = new_device->is_expander_smp_device; 2102 existing_device->active_path_index = new_device->active_path_index; 2103 existing_device->phy_id = new_device->phy_id; 2104 existing_device->path_map = new_device->path_map; 2105 existing_device->bay = new_device->bay; 2106 existing_device->box_index = new_device->box_index; 2107 existing_device->phys_box_on_bus = new_device->phys_box_on_bus; 2108 existing_device->phy_connected_dev_type = new_device->phy_connected_dev_type; 2109 memcpy(existing_device->box, new_device->box, sizeof(existing_device->box)); 2110 memcpy(existing_device->phys_connector, new_device->phys_connector, sizeof(existing_device->phys_connector)); 2111 2112 existing_device->multi_lun_device_lun_count = new_device->multi_lun_device_lun_count; 2113 if (existing_device->multi_lun_device_lun_count == 0) 2114 existing_device->multi_lun_device_lun_count = 1; 2115 } 2116 } 2117 2118 static inline void pqi_free_device(struct pqi_scsi_dev *device) 2119 { 2120 if (device) { 2121 kfree(device->raid_map); 2122 kfree(device); 2123 } 2124 } 2125 2126 /* 2127 * Called when exposing a new device to the OS fails in order to re-adjust 2128 * our internal SCSI device list to match the SCSI ML's view. 2129 */ 2130 2131 static inline void pqi_fixup_botched_add(struct pqi_ctrl_info *ctrl_info, 2132 struct pqi_scsi_dev *device) 2133 { 2134 unsigned long flags; 2135 2136 spin_lock_irqsave(&ctrl_info->scsi_device_list_lock, flags); 2137 list_del(&device->scsi_device_list_entry); 2138 spin_unlock_irqrestore(&ctrl_info->scsi_device_list_lock, flags); 2139 2140 /* Allow the device structure to be freed later. */ 2141 device->keep_device = false; 2142 } 2143 2144 static inline bool pqi_is_device_added(struct pqi_scsi_dev *device) 2145 { 2146 if (device->is_expander_smp_device) 2147 return device->sas_port != NULL; 2148 2149 return device->sdev != NULL; 2150 } 2151 2152 static void pqi_update_device_list(struct pqi_ctrl_info *ctrl_info, 2153 struct pqi_scsi_dev *new_device_list[], unsigned int num_new_devices) 2154 { 2155 int rc; 2156 unsigned int i; 2157 unsigned long flags; 2158 enum pqi_find_result find_result; 2159 struct pqi_scsi_dev *device; 2160 struct pqi_scsi_dev *next; 2161 struct pqi_scsi_dev *matching_device; 2162 LIST_HEAD(add_list); 2163 LIST_HEAD(delete_list); 2164 2165 /* 2166 * The idea here is to do as little work as possible while holding the 2167 * spinlock. That's why we go to great pains to defer anything other 2168 * than updating the internal device list until after we release the 2169 * spinlock. 2170 */ 2171 2172 spin_lock_irqsave(&ctrl_info->scsi_device_list_lock, flags); 2173 2174 /* Assume that all devices in the existing list have gone away. */ 2175 list_for_each_entry(device, &ctrl_info->scsi_device_list, scsi_device_list_entry) 2176 device->device_gone = true; 2177 2178 for (i = 0; i < num_new_devices; i++) { 2179 device = new_device_list[i]; 2180 2181 find_result = pqi_scsi_find_entry(ctrl_info, device, 2182 &matching_device); 2183 2184 switch (find_result) { 2185 case DEVICE_SAME: 2186 /* 2187 * The newly found device is already in the existing 2188 * device list. 2189 */ 2190 device->new_device = false; 2191 matching_device->device_gone = false; 2192 pqi_scsi_update_device(ctrl_info, matching_device, device); 2193 break; 2194 case DEVICE_NOT_FOUND: 2195 /* 2196 * The newly found device is NOT in the existing device 2197 * list. 2198 */ 2199 device->new_device = true; 2200 break; 2201 case DEVICE_CHANGED: 2202 /* 2203 * The original device has gone away and we need to add 2204 * the new device. 2205 */ 2206 device->new_device = true; 2207 break; 2208 } 2209 } 2210 2211 /* Process all devices that have gone away. */ 2212 list_for_each_entry_safe(device, next, &ctrl_info->scsi_device_list, 2213 scsi_device_list_entry) { 2214 if (device->device_gone) { 2215 list_del(&device->scsi_device_list_entry); 2216 list_add_tail(&device->delete_list_entry, &delete_list); 2217 } 2218 } 2219 2220 /* Process all new devices. */ 2221 for (i = 0; i < num_new_devices; i++) { 2222 device = new_device_list[i]; 2223 if (!device->new_device) 2224 continue; 2225 if (device->volume_offline) 2226 continue; 2227 list_add_tail(&device->scsi_device_list_entry, 2228 &ctrl_info->scsi_device_list); 2229 list_add_tail(&device->add_list_entry, &add_list); 2230 /* To prevent this device structure from being freed later. */ 2231 device->keep_device = true; 2232 } 2233 2234 spin_unlock_irqrestore(&ctrl_info->scsi_device_list_lock, flags); 2235 2236 /* 2237 * If OFA is in progress and there are devices that need to be deleted, 2238 * allow any pending reset operations to continue and unblock any SCSI 2239 * requests before removal. 2240 */ 2241 if (pqi_ofa_in_progress(ctrl_info)) { 2242 list_for_each_entry_safe(device, next, &delete_list, delete_list_entry) 2243 if (pqi_is_device_added(device)) 2244 pqi_device_remove_start(device); 2245 pqi_ctrl_unblock_device_reset(ctrl_info); 2246 pqi_scsi_unblock_requests(ctrl_info); 2247 } 2248 2249 /* Remove all devices that have gone away. */ 2250 list_for_each_entry_safe(device, next, &delete_list, delete_list_entry) { 2251 if (device->volume_offline) { 2252 pqi_dev_info(ctrl_info, "offline", device); 2253 pqi_show_volume_status(ctrl_info, device); 2254 } else { 2255 pqi_dev_info(ctrl_info, "removed", device); 2256 } 2257 if (pqi_is_device_added(device)) 2258 pqi_remove_device(ctrl_info, device); 2259 list_del(&device->delete_list_entry); 2260 pqi_free_device(device); 2261 } 2262 2263 /* 2264 * Notify the SML of any existing device changes such as; 2265 * queue depth, device size. 2266 */ 2267 list_for_each_entry(device, &ctrl_info->scsi_device_list, scsi_device_list_entry) { 2268 if (device->sdev && device->queue_depth != device->advertised_queue_depth) { 2269 device->advertised_queue_depth = device->queue_depth; 2270 scsi_change_queue_depth(device->sdev, device->advertised_queue_depth); 2271 if (device->rescan) { 2272 scsi_rescan_device(&device->sdev->sdev_gendev); 2273 device->rescan = false; 2274 } 2275 } 2276 } 2277 2278 /* Expose any new devices. */ 2279 list_for_each_entry_safe(device, next, &add_list, add_list_entry) { 2280 if (!pqi_is_device_added(device)) { 2281 rc = pqi_add_device(ctrl_info, device); 2282 if (rc == 0) { 2283 pqi_dev_info(ctrl_info, "added", device); 2284 } else { 2285 dev_warn(&ctrl_info->pci_dev->dev, 2286 "scsi %d:%d:%d:%d addition failed, device not added\n", 2287 ctrl_info->scsi_host->host_no, 2288 device->bus, device->target, 2289 device->lun); 2290 pqi_fixup_botched_add(ctrl_info, device); 2291 } 2292 } 2293 } 2294 2295 ctrl_info->logical_volume_rescan_needed = false; 2296 2297 } 2298 2299 static inline bool pqi_is_supported_device(struct pqi_scsi_dev *device) 2300 { 2301 /* 2302 * Only support the HBA controller itself as a RAID 2303 * controller. If it's a RAID controller other than 2304 * the HBA itself (an external RAID controller, for 2305 * example), we don't support it. 2306 */ 2307 if (device->device_type == SA_DEVICE_TYPE_CONTROLLER && 2308 !pqi_is_hba_lunid(device->scsi3addr)) 2309 return false; 2310 2311 return true; 2312 } 2313 2314 static inline bool pqi_skip_device(u8 *scsi3addr) 2315 { 2316 /* Ignore all masked devices. */ 2317 if (MASKED_DEVICE(scsi3addr)) 2318 return true; 2319 2320 return false; 2321 } 2322 2323 static inline void pqi_mask_device(u8 *scsi3addr) 2324 { 2325 scsi3addr[3] |= 0xc0; 2326 } 2327 2328 static inline bool pqi_is_multipath_device(struct pqi_scsi_dev *device) 2329 { 2330 if (pqi_is_logical_device(device)) 2331 return false; 2332 2333 return (device->path_map & (device->path_map - 1)) != 0; 2334 } 2335 2336 static inline bool pqi_expose_device(struct pqi_scsi_dev *device) 2337 { 2338 return !device->is_physical_device || !pqi_skip_device(device->scsi3addr); 2339 } 2340 2341 static int pqi_update_scsi_devices(struct pqi_ctrl_info *ctrl_info) 2342 { 2343 int i; 2344 int rc; 2345 LIST_HEAD(new_device_list_head); 2346 struct report_phys_lun_16byte_wwid_list *physdev_list = NULL; 2347 struct report_log_lun_list *logdev_list = NULL; 2348 struct report_phys_lun_16byte_wwid *phys_lun; 2349 struct report_log_lun *log_lun; 2350 struct bmic_identify_physical_device *id_phys = NULL; 2351 u32 num_physicals; 2352 u32 num_logicals; 2353 struct pqi_scsi_dev **new_device_list = NULL; 2354 struct pqi_scsi_dev *device; 2355 struct pqi_scsi_dev *next; 2356 unsigned int num_new_devices; 2357 unsigned int num_valid_devices; 2358 bool is_physical_device; 2359 u8 *scsi3addr; 2360 unsigned int physical_index; 2361 unsigned int logical_index; 2362 static char *out_of_memory_msg = 2363 "failed to allocate memory, device discovery stopped"; 2364 2365 rc = pqi_get_device_lists(ctrl_info, &physdev_list, &logdev_list); 2366 if (rc) 2367 goto out; 2368 2369 if (physdev_list) 2370 num_physicals = 2371 get_unaligned_be32(&physdev_list->header.list_length) 2372 / sizeof(physdev_list->lun_entries[0]); 2373 else 2374 num_physicals = 0; 2375 2376 if (logdev_list) 2377 num_logicals = 2378 get_unaligned_be32(&logdev_list->header.list_length) 2379 / sizeof(logdev_list->lun_entries[0]); 2380 else 2381 num_logicals = 0; 2382 2383 if (num_physicals) { 2384 /* 2385 * We need this buffer for calls to pqi_get_physical_disk_info() 2386 * below. We allocate it here instead of inside 2387 * pqi_get_physical_disk_info() because it's a fairly large 2388 * buffer. 2389 */ 2390 id_phys = kmalloc(sizeof(*id_phys), GFP_KERNEL); 2391 if (!id_phys) { 2392 dev_warn(&ctrl_info->pci_dev->dev, "%s\n", 2393 out_of_memory_msg); 2394 rc = -ENOMEM; 2395 goto out; 2396 } 2397 2398 if (pqi_hide_vsep) { 2399 for (i = num_physicals - 1; i >= 0; i--) { 2400 phys_lun = &physdev_list->lun_entries[i]; 2401 if (CISS_GET_DRIVE_NUMBER(phys_lun->lunid) == PQI_VSEP_CISS_BTL) { 2402 pqi_mask_device(phys_lun->lunid); 2403 break; 2404 } 2405 } 2406 } 2407 } 2408 2409 if (num_logicals && 2410 (logdev_list->header.flags & CISS_REPORT_LOG_FLAG_DRIVE_TYPE_MIX)) 2411 ctrl_info->lv_drive_type_mix_valid = true; 2412 2413 num_new_devices = num_physicals + num_logicals; 2414 2415 new_device_list = kmalloc_array(num_new_devices, 2416 sizeof(*new_device_list), 2417 GFP_KERNEL); 2418 if (!new_device_list) { 2419 dev_warn(&ctrl_info->pci_dev->dev, "%s\n", out_of_memory_msg); 2420 rc = -ENOMEM; 2421 goto out; 2422 } 2423 2424 for (i = 0; i < num_new_devices; i++) { 2425 device = kzalloc(sizeof(*device), GFP_KERNEL); 2426 if (!device) { 2427 dev_warn(&ctrl_info->pci_dev->dev, "%s\n", 2428 out_of_memory_msg); 2429 rc = -ENOMEM; 2430 goto out; 2431 } 2432 list_add_tail(&device->new_device_list_entry, 2433 &new_device_list_head); 2434 } 2435 2436 device = NULL; 2437 num_valid_devices = 0; 2438 physical_index = 0; 2439 logical_index = 0; 2440 2441 for (i = 0; i < num_new_devices; i++) { 2442 2443 if ((!pqi_expose_ld_first && i < num_physicals) || 2444 (pqi_expose_ld_first && i >= num_logicals)) { 2445 is_physical_device = true; 2446 phys_lun = &physdev_list->lun_entries[physical_index++]; 2447 log_lun = NULL; 2448 scsi3addr = phys_lun->lunid; 2449 } else { 2450 is_physical_device = false; 2451 phys_lun = NULL; 2452 log_lun = &logdev_list->lun_entries[logical_index++]; 2453 scsi3addr = log_lun->lunid; 2454 } 2455 2456 if (is_physical_device && pqi_skip_device(scsi3addr)) 2457 continue; 2458 2459 if (device) 2460 device = list_next_entry(device, new_device_list_entry); 2461 else 2462 device = list_first_entry(&new_device_list_head, 2463 struct pqi_scsi_dev, new_device_list_entry); 2464 2465 memcpy(device->scsi3addr, scsi3addr, sizeof(device->scsi3addr)); 2466 device->is_physical_device = is_physical_device; 2467 if (is_physical_device) { 2468 device->device_type = phys_lun->device_type; 2469 if (device->device_type == SA_DEVICE_TYPE_EXPANDER_SMP) 2470 device->is_expander_smp_device = true; 2471 } else { 2472 device->is_external_raid_device = 2473 pqi_is_external_raid_addr(scsi3addr); 2474 } 2475 2476 if (!pqi_is_supported_device(device)) 2477 continue; 2478 2479 /* Do not present disks that the OS cannot fully probe */ 2480 if (pqi_keep_device_offline(ctrl_info, device)) 2481 continue; 2482 2483 /* Gather information about the device. */ 2484 rc = pqi_get_device_info(ctrl_info, device, id_phys); 2485 if (rc == -ENOMEM) { 2486 dev_warn(&ctrl_info->pci_dev->dev, "%s\n", 2487 out_of_memory_msg); 2488 goto out; 2489 } 2490 if (rc) { 2491 if (device->is_physical_device) 2492 dev_warn(&ctrl_info->pci_dev->dev, 2493 "obtaining device info failed, skipping physical device %016llx%016llx\n", 2494 get_unaligned_be64(&phys_lun->wwid[0]), 2495 get_unaligned_be64(&phys_lun->wwid[8])); 2496 else 2497 dev_warn(&ctrl_info->pci_dev->dev, 2498 "obtaining device info failed, skipping logical device %08x%08x\n", 2499 *((u32 *)&device->scsi3addr), 2500 *((u32 *)&device->scsi3addr[4])); 2501 rc = 0; 2502 continue; 2503 } 2504 2505 pqi_assign_bus_target_lun(device); 2506 2507 if (device->is_physical_device) { 2508 memcpy(device->wwid, phys_lun->wwid, sizeof(device->wwid)); 2509 if ((phys_lun->device_flags & 2510 CISS_REPORT_PHYS_DEV_FLAG_AIO_ENABLED) && 2511 phys_lun->aio_handle) { 2512 device->aio_enabled = true; 2513 device->aio_handle = 2514 phys_lun->aio_handle; 2515 } 2516 } else { 2517 memcpy(device->volume_id, log_lun->volume_id, 2518 sizeof(device->volume_id)); 2519 } 2520 2521 device->sas_address = get_unaligned_be64(&device->wwid[0]); 2522 2523 new_device_list[num_valid_devices++] = device; 2524 } 2525 2526 pqi_update_device_list(ctrl_info, new_device_list, num_valid_devices); 2527 2528 out: 2529 list_for_each_entry_safe(device, next, &new_device_list_head, 2530 new_device_list_entry) { 2531 if (device->keep_device) 2532 continue; 2533 list_del(&device->new_device_list_entry); 2534 pqi_free_device(device); 2535 } 2536 2537 kfree(new_device_list); 2538 kfree(physdev_list); 2539 kfree(logdev_list); 2540 kfree(id_phys); 2541 2542 return rc; 2543 } 2544 2545 static int pqi_scan_scsi_devices(struct pqi_ctrl_info *ctrl_info) 2546 { 2547 int rc; 2548 int mutex_acquired; 2549 2550 if (pqi_ctrl_offline(ctrl_info)) 2551 return -ENXIO; 2552 2553 mutex_acquired = mutex_trylock(&ctrl_info->scan_mutex); 2554 2555 if (!mutex_acquired) { 2556 if (pqi_ctrl_scan_blocked(ctrl_info)) 2557 return -EBUSY; 2558 pqi_schedule_rescan_worker_delayed(ctrl_info); 2559 return -EINPROGRESS; 2560 } 2561 2562 rc = pqi_update_scsi_devices(ctrl_info); 2563 if (rc && !pqi_ctrl_scan_blocked(ctrl_info)) 2564 pqi_schedule_rescan_worker_delayed(ctrl_info); 2565 2566 mutex_unlock(&ctrl_info->scan_mutex); 2567 2568 return rc; 2569 } 2570 2571 static void pqi_scan_start(struct Scsi_Host *shost) 2572 { 2573 struct pqi_ctrl_info *ctrl_info; 2574 2575 ctrl_info = shost_to_hba(shost); 2576 2577 pqi_scan_scsi_devices(ctrl_info); 2578 } 2579 2580 /* Returns TRUE if scan is finished. */ 2581 2582 static int pqi_scan_finished(struct Scsi_Host *shost, 2583 unsigned long elapsed_time) 2584 { 2585 struct pqi_ctrl_info *ctrl_info; 2586 2587 ctrl_info = shost_priv(shost); 2588 2589 return !mutex_is_locked(&ctrl_info->scan_mutex); 2590 } 2591 2592 static inline void pqi_set_encryption_info(struct pqi_encryption_info *encryption_info, 2593 struct raid_map *raid_map, u64 first_block) 2594 { 2595 u32 volume_blk_size; 2596 2597 /* 2598 * Set the encryption tweak values based on logical block address. 2599 * If the block size is 512, the tweak value is equal to the LBA. 2600 * For other block sizes, tweak value is (LBA * block size) / 512. 2601 */ 2602 volume_blk_size = get_unaligned_le32(&raid_map->volume_blk_size); 2603 if (volume_blk_size != 512) 2604 first_block = (first_block * volume_blk_size) / 512; 2605 2606 encryption_info->data_encryption_key_index = 2607 get_unaligned_le16(&raid_map->data_encryption_key_index); 2608 encryption_info->encrypt_tweak_lower = lower_32_bits(first_block); 2609 encryption_info->encrypt_tweak_upper = upper_32_bits(first_block); 2610 } 2611 2612 /* 2613 * Attempt to perform RAID bypass mapping for a logical volume I/O. 2614 */ 2615 2616 static bool pqi_aio_raid_level_supported(struct pqi_ctrl_info *ctrl_info, 2617 struct pqi_scsi_dev_raid_map_data *rmd) 2618 { 2619 bool is_supported = true; 2620 2621 switch (rmd->raid_level) { 2622 case SA_RAID_0: 2623 break; 2624 case SA_RAID_1: 2625 if (rmd->is_write && (!ctrl_info->enable_r1_writes || 2626 rmd->data_length > ctrl_info->max_write_raid_1_10_2drive)) 2627 is_supported = false; 2628 break; 2629 case SA_RAID_TRIPLE: 2630 if (rmd->is_write && (!ctrl_info->enable_r1_writes || 2631 rmd->data_length > ctrl_info->max_write_raid_1_10_3drive)) 2632 is_supported = false; 2633 break; 2634 case SA_RAID_5: 2635 if (rmd->is_write && (!ctrl_info->enable_r5_writes || 2636 rmd->data_length > ctrl_info->max_write_raid_5_6)) 2637 is_supported = false; 2638 break; 2639 case SA_RAID_6: 2640 if (rmd->is_write && (!ctrl_info->enable_r6_writes || 2641 rmd->data_length > ctrl_info->max_write_raid_5_6)) 2642 is_supported = false; 2643 break; 2644 default: 2645 is_supported = false; 2646 break; 2647 } 2648 2649 return is_supported; 2650 } 2651 2652 #define PQI_RAID_BYPASS_INELIGIBLE 1 2653 2654 static int pqi_get_aio_lba_and_block_count(struct scsi_cmnd *scmd, 2655 struct pqi_scsi_dev_raid_map_data *rmd) 2656 { 2657 /* Check for valid opcode, get LBA and block count. */ 2658 switch (scmd->cmnd[0]) { 2659 case WRITE_6: 2660 rmd->is_write = true; 2661 fallthrough; 2662 case READ_6: 2663 rmd->first_block = (u64)(((scmd->cmnd[1] & 0x1f) << 16) | 2664 (scmd->cmnd[2] << 8) | scmd->cmnd[3]); 2665 rmd->block_cnt = (u32)scmd->cmnd[4]; 2666 if (rmd->block_cnt == 0) 2667 rmd->block_cnt = 256; 2668 break; 2669 case WRITE_10: 2670 rmd->is_write = true; 2671 fallthrough; 2672 case READ_10: 2673 rmd->first_block = (u64)get_unaligned_be32(&scmd->cmnd[2]); 2674 rmd->block_cnt = (u32)get_unaligned_be16(&scmd->cmnd[7]); 2675 break; 2676 case WRITE_12: 2677 rmd->is_write = true; 2678 fallthrough; 2679 case READ_12: 2680 rmd->first_block = (u64)get_unaligned_be32(&scmd->cmnd[2]); 2681 rmd->block_cnt = get_unaligned_be32(&scmd->cmnd[6]); 2682 break; 2683 case WRITE_16: 2684 rmd->is_write = true; 2685 fallthrough; 2686 case READ_16: 2687 rmd->first_block = get_unaligned_be64(&scmd->cmnd[2]); 2688 rmd->block_cnt = get_unaligned_be32(&scmd->cmnd[10]); 2689 break; 2690 default: 2691 /* Process via normal I/O path. */ 2692 return PQI_RAID_BYPASS_INELIGIBLE; 2693 } 2694 2695 put_unaligned_le32(scsi_bufflen(scmd), &rmd->data_length); 2696 2697 return 0; 2698 } 2699 2700 static int pci_get_aio_common_raid_map_values(struct pqi_ctrl_info *ctrl_info, 2701 struct pqi_scsi_dev_raid_map_data *rmd, struct raid_map *raid_map) 2702 { 2703 #if BITS_PER_LONG == 32 2704 u64 tmpdiv; 2705 #endif 2706 2707 rmd->last_block = rmd->first_block + rmd->block_cnt - 1; 2708 2709 /* Check for invalid block or wraparound. */ 2710 if (rmd->last_block >= 2711 get_unaligned_le64(&raid_map->volume_blk_cnt) || 2712 rmd->last_block < rmd->first_block) 2713 return PQI_RAID_BYPASS_INELIGIBLE; 2714 2715 rmd->data_disks_per_row = 2716 get_unaligned_le16(&raid_map->data_disks_per_row); 2717 rmd->strip_size = get_unaligned_le16(&raid_map->strip_size); 2718 rmd->layout_map_count = get_unaligned_le16(&raid_map->layout_map_count); 2719 2720 /* Calculate stripe information for the request. */ 2721 rmd->blocks_per_row = rmd->data_disks_per_row * rmd->strip_size; 2722 if (rmd->blocks_per_row == 0) /* Used as a divisor in many calculations */ 2723 return PQI_RAID_BYPASS_INELIGIBLE; 2724 #if BITS_PER_LONG == 32 2725 tmpdiv = rmd->first_block; 2726 do_div(tmpdiv, rmd->blocks_per_row); 2727 rmd->first_row = tmpdiv; 2728 tmpdiv = rmd->last_block; 2729 do_div(tmpdiv, rmd->blocks_per_row); 2730 rmd->last_row = tmpdiv; 2731 rmd->first_row_offset = (u32)(rmd->first_block - (rmd->first_row * rmd->blocks_per_row)); 2732 rmd->last_row_offset = (u32)(rmd->last_block - (rmd->last_row * rmd->blocks_per_row)); 2733 tmpdiv = rmd->first_row_offset; 2734 do_div(tmpdiv, rmd->strip_size); 2735 rmd->first_column = tmpdiv; 2736 tmpdiv = rmd->last_row_offset; 2737 do_div(tmpdiv, rmd->strip_size); 2738 rmd->last_column = tmpdiv; 2739 #else 2740 rmd->first_row = rmd->first_block / rmd->blocks_per_row; 2741 rmd->last_row = rmd->last_block / rmd->blocks_per_row; 2742 rmd->first_row_offset = (u32)(rmd->first_block - 2743 (rmd->first_row * rmd->blocks_per_row)); 2744 rmd->last_row_offset = (u32)(rmd->last_block - (rmd->last_row * 2745 rmd->blocks_per_row)); 2746 rmd->first_column = rmd->first_row_offset / rmd->strip_size; 2747 rmd->last_column = rmd->last_row_offset / rmd->strip_size; 2748 #endif 2749 2750 /* If this isn't a single row/column then give to the controller. */ 2751 if (rmd->first_row != rmd->last_row || 2752 rmd->first_column != rmd->last_column) 2753 return PQI_RAID_BYPASS_INELIGIBLE; 2754 2755 /* Proceeding with driver mapping. */ 2756 rmd->total_disks_per_row = rmd->data_disks_per_row + 2757 get_unaligned_le16(&raid_map->metadata_disks_per_row); 2758 rmd->map_row = ((u32)(rmd->first_row >> 2759 raid_map->parity_rotation_shift)) % 2760 get_unaligned_le16(&raid_map->row_cnt); 2761 rmd->map_index = (rmd->map_row * rmd->total_disks_per_row) + 2762 rmd->first_column; 2763 2764 return 0; 2765 } 2766 2767 static int pqi_calc_aio_r5_or_r6(struct pqi_scsi_dev_raid_map_data *rmd, 2768 struct raid_map *raid_map) 2769 { 2770 #if BITS_PER_LONG == 32 2771 u64 tmpdiv; 2772 #endif 2773 2774 if (rmd->blocks_per_row == 0) /* Used as a divisor in many calculations */ 2775 return PQI_RAID_BYPASS_INELIGIBLE; 2776 2777 /* RAID 50/60 */ 2778 /* Verify first and last block are in same RAID group. */ 2779 rmd->stripesize = rmd->blocks_per_row * rmd->layout_map_count; 2780 #if BITS_PER_LONG == 32 2781 tmpdiv = rmd->first_block; 2782 rmd->first_group = do_div(tmpdiv, rmd->stripesize); 2783 tmpdiv = rmd->first_group; 2784 do_div(tmpdiv, rmd->blocks_per_row); 2785 rmd->first_group = tmpdiv; 2786 tmpdiv = rmd->last_block; 2787 rmd->last_group = do_div(tmpdiv, rmd->stripesize); 2788 tmpdiv = rmd->last_group; 2789 do_div(tmpdiv, rmd->blocks_per_row); 2790 rmd->last_group = tmpdiv; 2791 #else 2792 rmd->first_group = (rmd->first_block % rmd->stripesize) / rmd->blocks_per_row; 2793 rmd->last_group = (rmd->last_block % rmd->stripesize) / rmd->blocks_per_row; 2794 #endif 2795 if (rmd->first_group != rmd->last_group) 2796 return PQI_RAID_BYPASS_INELIGIBLE; 2797 2798 /* Verify request is in a single row of RAID 5/6. */ 2799 #if BITS_PER_LONG == 32 2800 tmpdiv = rmd->first_block; 2801 do_div(tmpdiv, rmd->stripesize); 2802 rmd->first_row = tmpdiv; 2803 rmd->r5or6_first_row = tmpdiv; 2804 tmpdiv = rmd->last_block; 2805 do_div(tmpdiv, rmd->stripesize); 2806 rmd->r5or6_last_row = tmpdiv; 2807 #else 2808 rmd->first_row = rmd->r5or6_first_row = 2809 rmd->first_block / rmd->stripesize; 2810 rmd->r5or6_last_row = rmd->last_block / rmd->stripesize; 2811 #endif 2812 if (rmd->r5or6_first_row != rmd->r5or6_last_row) 2813 return PQI_RAID_BYPASS_INELIGIBLE; 2814 2815 /* Verify request is in a single column. */ 2816 #if BITS_PER_LONG == 32 2817 tmpdiv = rmd->first_block; 2818 rmd->first_row_offset = do_div(tmpdiv, rmd->stripesize); 2819 tmpdiv = rmd->first_row_offset; 2820 rmd->first_row_offset = (u32)do_div(tmpdiv, rmd->blocks_per_row); 2821 rmd->r5or6_first_row_offset = rmd->first_row_offset; 2822 tmpdiv = rmd->last_block; 2823 rmd->r5or6_last_row_offset = do_div(tmpdiv, rmd->stripesize); 2824 tmpdiv = rmd->r5or6_last_row_offset; 2825 rmd->r5or6_last_row_offset = do_div(tmpdiv, rmd->blocks_per_row); 2826 tmpdiv = rmd->r5or6_first_row_offset; 2827 do_div(tmpdiv, rmd->strip_size); 2828 rmd->first_column = rmd->r5or6_first_column = tmpdiv; 2829 tmpdiv = rmd->r5or6_last_row_offset; 2830 do_div(tmpdiv, rmd->strip_size); 2831 rmd->r5or6_last_column = tmpdiv; 2832 #else 2833 rmd->first_row_offset = rmd->r5or6_first_row_offset = 2834 (u32)((rmd->first_block % rmd->stripesize) % 2835 rmd->blocks_per_row); 2836 2837 rmd->r5or6_last_row_offset = 2838 (u32)((rmd->last_block % rmd->stripesize) % 2839 rmd->blocks_per_row); 2840 2841 rmd->first_column = 2842 rmd->r5or6_first_row_offset / rmd->strip_size; 2843 rmd->r5or6_first_column = rmd->first_column; 2844 rmd->r5or6_last_column = rmd->r5or6_last_row_offset / rmd->strip_size; 2845 #endif 2846 if (rmd->r5or6_first_column != rmd->r5or6_last_column) 2847 return PQI_RAID_BYPASS_INELIGIBLE; 2848 2849 /* Request is eligible. */ 2850 rmd->map_row = 2851 ((u32)(rmd->first_row >> raid_map->parity_rotation_shift)) % 2852 get_unaligned_le16(&raid_map->row_cnt); 2853 2854 rmd->map_index = (rmd->first_group * 2855 (get_unaligned_le16(&raid_map->row_cnt) * 2856 rmd->total_disks_per_row)) + 2857 (rmd->map_row * rmd->total_disks_per_row) + rmd->first_column; 2858 2859 if (rmd->is_write) { 2860 u32 index; 2861 2862 /* 2863 * p_parity_it_nexus and q_parity_it_nexus are pointers to the 2864 * parity entries inside the device's raid_map. 2865 * 2866 * A device's RAID map is bounded by: number of RAID disks squared. 2867 * 2868 * The devices RAID map size is checked during device 2869 * initialization. 2870 */ 2871 index = DIV_ROUND_UP(rmd->map_index + 1, rmd->total_disks_per_row); 2872 index *= rmd->total_disks_per_row; 2873 index -= get_unaligned_le16(&raid_map->metadata_disks_per_row); 2874 2875 rmd->p_parity_it_nexus = raid_map->disk_data[index].aio_handle; 2876 if (rmd->raid_level == SA_RAID_6) { 2877 rmd->q_parity_it_nexus = raid_map->disk_data[index + 1].aio_handle; 2878 rmd->xor_mult = raid_map->disk_data[rmd->map_index].xor_mult[1]; 2879 } 2880 #if BITS_PER_LONG == 32 2881 tmpdiv = rmd->first_block; 2882 do_div(tmpdiv, rmd->blocks_per_row); 2883 rmd->row = tmpdiv; 2884 #else 2885 rmd->row = rmd->first_block / rmd->blocks_per_row; 2886 #endif 2887 } 2888 2889 return 0; 2890 } 2891 2892 static void pqi_set_aio_cdb(struct pqi_scsi_dev_raid_map_data *rmd) 2893 { 2894 /* Build the new CDB for the physical disk I/O. */ 2895 if (rmd->disk_block > 0xffffffff) { 2896 rmd->cdb[0] = rmd->is_write ? WRITE_16 : READ_16; 2897 rmd->cdb[1] = 0; 2898 put_unaligned_be64(rmd->disk_block, &rmd->cdb[2]); 2899 put_unaligned_be32(rmd->disk_block_cnt, &rmd->cdb[10]); 2900 rmd->cdb[14] = 0; 2901 rmd->cdb[15] = 0; 2902 rmd->cdb_length = 16; 2903 } else { 2904 rmd->cdb[0] = rmd->is_write ? WRITE_10 : READ_10; 2905 rmd->cdb[1] = 0; 2906 put_unaligned_be32((u32)rmd->disk_block, &rmd->cdb[2]); 2907 rmd->cdb[6] = 0; 2908 put_unaligned_be16((u16)rmd->disk_block_cnt, &rmd->cdb[7]); 2909 rmd->cdb[9] = 0; 2910 rmd->cdb_length = 10; 2911 } 2912 } 2913 2914 static void pqi_calc_aio_r1_nexus(struct raid_map *raid_map, 2915 struct pqi_scsi_dev_raid_map_data *rmd) 2916 { 2917 u32 index; 2918 u32 group; 2919 2920 group = rmd->map_index / rmd->data_disks_per_row; 2921 2922 index = rmd->map_index - (group * rmd->data_disks_per_row); 2923 rmd->it_nexus[0] = raid_map->disk_data[index].aio_handle; 2924 index += rmd->data_disks_per_row; 2925 rmd->it_nexus[1] = raid_map->disk_data[index].aio_handle; 2926 if (rmd->layout_map_count > 2) { 2927 index += rmd->data_disks_per_row; 2928 rmd->it_nexus[2] = raid_map->disk_data[index].aio_handle; 2929 } 2930 2931 rmd->num_it_nexus_entries = rmd->layout_map_count; 2932 } 2933 2934 static int pqi_raid_bypass_submit_scsi_cmd(struct pqi_ctrl_info *ctrl_info, 2935 struct pqi_scsi_dev *device, struct scsi_cmnd *scmd, 2936 struct pqi_queue_group *queue_group) 2937 { 2938 int rc; 2939 struct raid_map *raid_map; 2940 u32 group; 2941 u32 next_bypass_group; 2942 struct pqi_encryption_info *encryption_info_ptr; 2943 struct pqi_encryption_info encryption_info; 2944 struct pqi_scsi_dev_raid_map_data rmd = { 0 }; 2945 2946 rc = pqi_get_aio_lba_and_block_count(scmd, &rmd); 2947 if (rc) 2948 return PQI_RAID_BYPASS_INELIGIBLE; 2949 2950 rmd.raid_level = device->raid_level; 2951 2952 if (!pqi_aio_raid_level_supported(ctrl_info, &rmd)) 2953 return PQI_RAID_BYPASS_INELIGIBLE; 2954 2955 if (unlikely(rmd.block_cnt == 0)) 2956 return PQI_RAID_BYPASS_INELIGIBLE; 2957 2958 raid_map = device->raid_map; 2959 2960 rc = pci_get_aio_common_raid_map_values(ctrl_info, &rmd, raid_map); 2961 if (rc) 2962 return PQI_RAID_BYPASS_INELIGIBLE; 2963 2964 if (device->raid_level == SA_RAID_1 || 2965 device->raid_level == SA_RAID_TRIPLE) { 2966 if (rmd.is_write) { 2967 pqi_calc_aio_r1_nexus(raid_map, &rmd); 2968 } else { 2969 group = device->next_bypass_group[rmd.map_index]; 2970 next_bypass_group = group + 1; 2971 if (next_bypass_group >= rmd.layout_map_count) 2972 next_bypass_group = 0; 2973 device->next_bypass_group[rmd.map_index] = next_bypass_group; 2974 rmd.map_index += group * rmd.data_disks_per_row; 2975 } 2976 } else if ((device->raid_level == SA_RAID_5 || 2977 device->raid_level == SA_RAID_6) && 2978 (rmd.layout_map_count > 1 || rmd.is_write)) { 2979 rc = pqi_calc_aio_r5_or_r6(&rmd, raid_map); 2980 if (rc) 2981 return PQI_RAID_BYPASS_INELIGIBLE; 2982 } 2983 2984 if (unlikely(rmd.map_index >= RAID_MAP_MAX_ENTRIES)) 2985 return PQI_RAID_BYPASS_INELIGIBLE; 2986 2987 rmd.aio_handle = raid_map->disk_data[rmd.map_index].aio_handle; 2988 rmd.disk_block = get_unaligned_le64(&raid_map->disk_starting_blk) + 2989 rmd.first_row * rmd.strip_size + 2990 (rmd.first_row_offset - rmd.first_column * rmd.strip_size); 2991 rmd.disk_block_cnt = rmd.block_cnt; 2992 2993 /* Handle differing logical/physical block sizes. */ 2994 if (raid_map->phys_blk_shift) { 2995 rmd.disk_block <<= raid_map->phys_blk_shift; 2996 rmd.disk_block_cnt <<= raid_map->phys_blk_shift; 2997 } 2998 2999 if (unlikely(rmd.disk_block_cnt > 0xffff)) 3000 return PQI_RAID_BYPASS_INELIGIBLE; 3001 3002 pqi_set_aio_cdb(&rmd); 3003 3004 if (get_unaligned_le16(&raid_map->flags) & RAID_MAP_ENCRYPTION_ENABLED) { 3005 if (rmd.data_length > device->max_transfer_encrypted) 3006 return PQI_RAID_BYPASS_INELIGIBLE; 3007 pqi_set_encryption_info(&encryption_info, raid_map, rmd.first_block); 3008 encryption_info_ptr = &encryption_info; 3009 } else { 3010 encryption_info_ptr = NULL; 3011 } 3012 3013 if (rmd.is_write) { 3014 switch (device->raid_level) { 3015 case SA_RAID_1: 3016 case SA_RAID_TRIPLE: 3017 return pqi_aio_submit_r1_write_io(ctrl_info, scmd, queue_group, 3018 encryption_info_ptr, device, &rmd); 3019 case SA_RAID_5: 3020 case SA_RAID_6: 3021 return pqi_aio_submit_r56_write_io(ctrl_info, scmd, queue_group, 3022 encryption_info_ptr, device, &rmd); 3023 } 3024 } 3025 3026 return pqi_aio_submit_io(ctrl_info, scmd, rmd.aio_handle, 3027 rmd.cdb, rmd.cdb_length, queue_group, 3028 encryption_info_ptr, true, false); 3029 } 3030 3031 #define PQI_STATUS_IDLE 0x0 3032 3033 #define PQI_CREATE_ADMIN_QUEUE_PAIR 1 3034 #define PQI_DELETE_ADMIN_QUEUE_PAIR 2 3035 3036 #define PQI_DEVICE_STATE_POWER_ON_AND_RESET 0x0 3037 #define PQI_DEVICE_STATE_STATUS_AVAILABLE 0x1 3038 #define PQI_DEVICE_STATE_ALL_REGISTERS_READY 0x2 3039 #define PQI_DEVICE_STATE_ADMIN_QUEUE_PAIR_READY 0x3 3040 #define PQI_DEVICE_STATE_ERROR 0x4 3041 3042 #define PQI_MODE_READY_TIMEOUT_SECS 30 3043 #define PQI_MODE_READY_POLL_INTERVAL_MSECS 1 3044 3045 static int pqi_wait_for_pqi_mode_ready(struct pqi_ctrl_info *ctrl_info) 3046 { 3047 struct pqi_device_registers __iomem *pqi_registers; 3048 unsigned long timeout; 3049 u64 signature; 3050 u8 status; 3051 3052 pqi_registers = ctrl_info->pqi_registers; 3053 timeout = (PQI_MODE_READY_TIMEOUT_SECS * HZ) + jiffies; 3054 3055 while (1) { 3056 signature = readq(&pqi_registers->signature); 3057 if (memcmp(&signature, PQI_DEVICE_SIGNATURE, 3058 sizeof(signature)) == 0) 3059 break; 3060 if (time_after(jiffies, timeout)) { 3061 dev_err(&ctrl_info->pci_dev->dev, 3062 "timed out waiting for PQI signature\n"); 3063 return -ETIMEDOUT; 3064 } 3065 msleep(PQI_MODE_READY_POLL_INTERVAL_MSECS); 3066 } 3067 3068 while (1) { 3069 status = readb(&pqi_registers->function_and_status_code); 3070 if (status == PQI_STATUS_IDLE) 3071 break; 3072 if (time_after(jiffies, timeout)) { 3073 dev_err(&ctrl_info->pci_dev->dev, 3074 "timed out waiting for PQI IDLE\n"); 3075 return -ETIMEDOUT; 3076 } 3077 msleep(PQI_MODE_READY_POLL_INTERVAL_MSECS); 3078 } 3079 3080 while (1) { 3081 if (readl(&pqi_registers->device_status) == 3082 PQI_DEVICE_STATE_ALL_REGISTERS_READY) 3083 break; 3084 if (time_after(jiffies, timeout)) { 3085 dev_err(&ctrl_info->pci_dev->dev, 3086 "timed out waiting for PQI all registers ready\n"); 3087 return -ETIMEDOUT; 3088 } 3089 msleep(PQI_MODE_READY_POLL_INTERVAL_MSECS); 3090 } 3091 3092 return 0; 3093 } 3094 3095 static inline void pqi_aio_path_disabled(struct pqi_io_request *io_request) 3096 { 3097 struct pqi_scsi_dev *device; 3098 3099 device = io_request->scmd->device->hostdata; 3100 device->raid_bypass_enabled = false; 3101 device->aio_enabled = false; 3102 } 3103 3104 static inline void pqi_take_device_offline(struct scsi_device *sdev, char *path) 3105 { 3106 struct pqi_ctrl_info *ctrl_info; 3107 struct pqi_scsi_dev *device; 3108 3109 device = sdev->hostdata; 3110 if (device->device_offline) 3111 return; 3112 3113 device->device_offline = true; 3114 ctrl_info = shost_to_hba(sdev->host); 3115 pqi_schedule_rescan_worker(ctrl_info); 3116 dev_err(&ctrl_info->pci_dev->dev, "re-scanning %s scsi %d:%d:%d:%d\n", 3117 path, ctrl_info->scsi_host->host_no, device->bus, 3118 device->target, device->lun); 3119 } 3120 3121 static void pqi_process_raid_io_error(struct pqi_io_request *io_request) 3122 { 3123 u8 scsi_status; 3124 u8 host_byte; 3125 struct scsi_cmnd *scmd; 3126 struct pqi_raid_error_info *error_info; 3127 size_t sense_data_length; 3128 int residual_count; 3129 int xfer_count; 3130 struct scsi_sense_hdr sshdr; 3131 3132 scmd = io_request->scmd; 3133 if (!scmd) 3134 return; 3135 3136 error_info = io_request->error_info; 3137 scsi_status = error_info->status; 3138 host_byte = DID_OK; 3139 3140 switch (error_info->data_out_result) { 3141 case PQI_DATA_IN_OUT_GOOD: 3142 break; 3143 case PQI_DATA_IN_OUT_UNDERFLOW: 3144 xfer_count = 3145 get_unaligned_le32(&error_info->data_out_transferred); 3146 residual_count = scsi_bufflen(scmd) - xfer_count; 3147 scsi_set_resid(scmd, residual_count); 3148 if (xfer_count < scmd->underflow) 3149 host_byte = DID_SOFT_ERROR; 3150 break; 3151 case PQI_DATA_IN_OUT_UNSOLICITED_ABORT: 3152 case PQI_DATA_IN_OUT_ABORTED: 3153 host_byte = DID_ABORT; 3154 break; 3155 case PQI_DATA_IN_OUT_TIMEOUT: 3156 host_byte = DID_TIME_OUT; 3157 break; 3158 case PQI_DATA_IN_OUT_BUFFER_OVERFLOW: 3159 case PQI_DATA_IN_OUT_PROTOCOL_ERROR: 3160 case PQI_DATA_IN_OUT_BUFFER_ERROR: 3161 case PQI_DATA_IN_OUT_BUFFER_OVERFLOW_DESCRIPTOR_AREA: 3162 case PQI_DATA_IN_OUT_BUFFER_OVERFLOW_BRIDGE: 3163 case PQI_DATA_IN_OUT_ERROR: 3164 case PQI_DATA_IN_OUT_HARDWARE_ERROR: 3165 case PQI_DATA_IN_OUT_PCIE_FABRIC_ERROR: 3166 case PQI_DATA_IN_OUT_PCIE_COMPLETION_TIMEOUT: 3167 case PQI_DATA_IN_OUT_PCIE_COMPLETER_ABORT_RECEIVED: 3168 case PQI_DATA_IN_OUT_PCIE_UNSUPPORTED_REQUEST_RECEIVED: 3169 case PQI_DATA_IN_OUT_PCIE_ECRC_CHECK_FAILED: 3170 case PQI_DATA_IN_OUT_PCIE_UNSUPPORTED_REQUEST: 3171 case PQI_DATA_IN_OUT_PCIE_ACS_VIOLATION: 3172 case PQI_DATA_IN_OUT_PCIE_TLP_PREFIX_BLOCKED: 3173 case PQI_DATA_IN_OUT_PCIE_POISONED_MEMORY_READ: 3174 default: 3175 host_byte = DID_ERROR; 3176 break; 3177 } 3178 3179 sense_data_length = get_unaligned_le16(&error_info->sense_data_length); 3180 if (sense_data_length == 0) 3181 sense_data_length = 3182 get_unaligned_le16(&error_info->response_data_length); 3183 if (sense_data_length) { 3184 if (sense_data_length > sizeof(error_info->data)) 3185 sense_data_length = sizeof(error_info->data); 3186 3187 if (scsi_status == SAM_STAT_CHECK_CONDITION && 3188 scsi_normalize_sense(error_info->data, 3189 sense_data_length, &sshdr) && 3190 sshdr.sense_key == HARDWARE_ERROR && 3191 sshdr.asc == 0x3e) { 3192 struct pqi_ctrl_info *ctrl_info = shost_to_hba(scmd->device->host); 3193 struct pqi_scsi_dev *device = scmd->device->hostdata; 3194 3195 switch (sshdr.ascq) { 3196 case 0x1: /* LOGICAL UNIT FAILURE */ 3197 if (printk_ratelimit()) 3198 scmd_printk(KERN_ERR, scmd, "received 'logical unit failure' from controller for scsi %d:%d:%d:%d\n", 3199 ctrl_info->scsi_host->host_no, device->bus, device->target, device->lun); 3200 pqi_take_device_offline(scmd->device, "RAID"); 3201 host_byte = DID_NO_CONNECT; 3202 break; 3203 3204 default: /* See http://www.t10.org/lists/asc-num.htm#ASC_3E */ 3205 if (printk_ratelimit()) 3206 scmd_printk(KERN_ERR, scmd, "received unhandled error %d from controller for scsi %d:%d:%d:%d\n", 3207 sshdr.ascq, ctrl_info->scsi_host->host_no, device->bus, device->target, device->lun); 3208 break; 3209 } 3210 } 3211 3212 if (sense_data_length > SCSI_SENSE_BUFFERSIZE) 3213 sense_data_length = SCSI_SENSE_BUFFERSIZE; 3214 memcpy(scmd->sense_buffer, error_info->data, 3215 sense_data_length); 3216 } 3217 3218 scmd->result = scsi_status; 3219 set_host_byte(scmd, host_byte); 3220 } 3221 3222 static void pqi_process_aio_io_error(struct pqi_io_request *io_request) 3223 { 3224 u8 scsi_status; 3225 u8 host_byte; 3226 struct scsi_cmnd *scmd; 3227 struct pqi_aio_error_info *error_info; 3228 size_t sense_data_length; 3229 int residual_count; 3230 int xfer_count; 3231 bool device_offline; 3232 struct pqi_scsi_dev *device; 3233 3234 scmd = io_request->scmd; 3235 error_info = io_request->error_info; 3236 host_byte = DID_OK; 3237 sense_data_length = 0; 3238 device_offline = false; 3239 device = scmd->device->hostdata; 3240 3241 switch (error_info->service_response) { 3242 case PQI_AIO_SERV_RESPONSE_COMPLETE: 3243 scsi_status = error_info->status; 3244 break; 3245 case PQI_AIO_SERV_RESPONSE_FAILURE: 3246 switch (error_info->status) { 3247 case PQI_AIO_STATUS_IO_ABORTED: 3248 scsi_status = SAM_STAT_TASK_ABORTED; 3249 break; 3250 case PQI_AIO_STATUS_UNDERRUN: 3251 scsi_status = SAM_STAT_GOOD; 3252 residual_count = get_unaligned_le32( 3253 &error_info->residual_count); 3254 scsi_set_resid(scmd, residual_count); 3255 xfer_count = scsi_bufflen(scmd) - residual_count; 3256 if (xfer_count < scmd->underflow) 3257 host_byte = DID_SOFT_ERROR; 3258 break; 3259 case PQI_AIO_STATUS_OVERRUN: 3260 scsi_status = SAM_STAT_GOOD; 3261 break; 3262 case PQI_AIO_STATUS_AIO_PATH_DISABLED: 3263 pqi_aio_path_disabled(io_request); 3264 if (pqi_is_multipath_device(device)) { 3265 pqi_device_remove_start(device); 3266 host_byte = DID_NO_CONNECT; 3267 scsi_status = SAM_STAT_CHECK_CONDITION; 3268 } else { 3269 scsi_status = SAM_STAT_GOOD; 3270 io_request->status = -EAGAIN; 3271 } 3272 break; 3273 case PQI_AIO_STATUS_NO_PATH_TO_DEVICE: 3274 case PQI_AIO_STATUS_INVALID_DEVICE: 3275 if (!io_request->raid_bypass) { 3276 device_offline = true; 3277 pqi_take_device_offline(scmd->device, "AIO"); 3278 host_byte = DID_NO_CONNECT; 3279 } 3280 scsi_status = SAM_STAT_CHECK_CONDITION; 3281 break; 3282 case PQI_AIO_STATUS_IO_ERROR: 3283 default: 3284 scsi_status = SAM_STAT_CHECK_CONDITION; 3285 break; 3286 } 3287 break; 3288 case PQI_AIO_SERV_RESPONSE_TMF_COMPLETE: 3289 case PQI_AIO_SERV_RESPONSE_TMF_SUCCEEDED: 3290 scsi_status = SAM_STAT_GOOD; 3291 break; 3292 case PQI_AIO_SERV_RESPONSE_TMF_REJECTED: 3293 case PQI_AIO_SERV_RESPONSE_TMF_INCORRECT_LUN: 3294 default: 3295 scsi_status = SAM_STAT_CHECK_CONDITION; 3296 break; 3297 } 3298 3299 if (error_info->data_present) { 3300 sense_data_length = 3301 get_unaligned_le16(&error_info->data_length); 3302 if (sense_data_length) { 3303 if (sense_data_length > sizeof(error_info->data)) 3304 sense_data_length = sizeof(error_info->data); 3305 if (sense_data_length > SCSI_SENSE_BUFFERSIZE) 3306 sense_data_length = SCSI_SENSE_BUFFERSIZE; 3307 memcpy(scmd->sense_buffer, error_info->data, 3308 sense_data_length); 3309 } 3310 } 3311 3312 if (device_offline && sense_data_length == 0) 3313 scsi_build_sense(scmd, 0, HARDWARE_ERROR, 0x3e, 0x1); 3314 3315 scmd->result = scsi_status; 3316 set_host_byte(scmd, host_byte); 3317 } 3318 3319 static void pqi_process_io_error(unsigned int iu_type, 3320 struct pqi_io_request *io_request) 3321 { 3322 switch (iu_type) { 3323 case PQI_RESPONSE_IU_RAID_PATH_IO_ERROR: 3324 pqi_process_raid_io_error(io_request); 3325 break; 3326 case PQI_RESPONSE_IU_AIO_PATH_IO_ERROR: 3327 pqi_process_aio_io_error(io_request); 3328 break; 3329 } 3330 } 3331 3332 static int pqi_interpret_task_management_response(struct pqi_ctrl_info *ctrl_info, 3333 struct pqi_task_management_response *response) 3334 { 3335 int rc; 3336 3337 switch (response->response_code) { 3338 case SOP_TMF_COMPLETE: 3339 case SOP_TMF_FUNCTION_SUCCEEDED: 3340 rc = 0; 3341 break; 3342 case SOP_TMF_REJECTED: 3343 rc = -EAGAIN; 3344 break; 3345 case SOP_RC_INCORRECT_LOGICAL_UNIT: 3346 rc = -ENODEV; 3347 break; 3348 default: 3349 rc = -EIO; 3350 break; 3351 } 3352 3353 if (rc) 3354 dev_err(&ctrl_info->pci_dev->dev, 3355 "Task Management Function error: %d (response code: %u)\n", rc, response->response_code); 3356 3357 return rc; 3358 } 3359 3360 static inline void pqi_invalid_response(struct pqi_ctrl_info *ctrl_info, 3361 enum pqi_ctrl_shutdown_reason ctrl_shutdown_reason) 3362 { 3363 pqi_take_ctrl_offline(ctrl_info, ctrl_shutdown_reason); 3364 } 3365 3366 static int pqi_process_io_intr(struct pqi_ctrl_info *ctrl_info, struct pqi_queue_group *queue_group) 3367 { 3368 int num_responses; 3369 pqi_index_t oq_pi; 3370 pqi_index_t oq_ci; 3371 struct pqi_io_request *io_request; 3372 struct pqi_io_response *response; 3373 u16 request_id; 3374 3375 num_responses = 0; 3376 oq_ci = queue_group->oq_ci_copy; 3377 3378 while (1) { 3379 oq_pi = readl(queue_group->oq_pi); 3380 if (oq_pi >= ctrl_info->num_elements_per_oq) { 3381 pqi_invalid_response(ctrl_info, PQI_IO_PI_OUT_OF_RANGE); 3382 dev_err(&ctrl_info->pci_dev->dev, 3383 "I/O interrupt: producer index (%u) out of range (0-%u): consumer index: %u\n", 3384 oq_pi, ctrl_info->num_elements_per_oq - 1, oq_ci); 3385 return -1; 3386 } 3387 if (oq_pi == oq_ci) 3388 break; 3389 3390 num_responses++; 3391 response = queue_group->oq_element_array + 3392 (oq_ci * PQI_OPERATIONAL_OQ_ELEMENT_LENGTH); 3393 3394 request_id = get_unaligned_le16(&response->request_id); 3395 if (request_id >= ctrl_info->max_io_slots) { 3396 pqi_invalid_response(ctrl_info, PQI_INVALID_REQ_ID); 3397 dev_err(&ctrl_info->pci_dev->dev, 3398 "request ID in response (%u) out of range (0-%u): producer index: %u consumer index: %u\n", 3399 request_id, ctrl_info->max_io_slots - 1, oq_pi, oq_ci); 3400 return -1; 3401 } 3402 3403 io_request = &ctrl_info->io_request_pool[request_id]; 3404 if (atomic_read(&io_request->refcount) == 0) { 3405 pqi_invalid_response(ctrl_info, PQI_UNMATCHED_REQ_ID); 3406 dev_err(&ctrl_info->pci_dev->dev, 3407 "request ID in response (%u) does not match an outstanding I/O request: producer index: %u consumer index: %u\n", 3408 request_id, oq_pi, oq_ci); 3409 return -1; 3410 } 3411 3412 switch (response->header.iu_type) { 3413 case PQI_RESPONSE_IU_RAID_PATH_IO_SUCCESS: 3414 case PQI_RESPONSE_IU_AIO_PATH_IO_SUCCESS: 3415 if (io_request->scmd) 3416 io_request->scmd->result = 0; 3417 fallthrough; 3418 case PQI_RESPONSE_IU_GENERAL_MANAGEMENT: 3419 break; 3420 case PQI_RESPONSE_IU_VENDOR_GENERAL: 3421 io_request->status = 3422 get_unaligned_le16( 3423 &((struct pqi_vendor_general_response *)response)->status); 3424 break; 3425 case PQI_RESPONSE_IU_TASK_MANAGEMENT: 3426 io_request->status = pqi_interpret_task_management_response(ctrl_info, 3427 (void *)response); 3428 break; 3429 case PQI_RESPONSE_IU_AIO_PATH_DISABLED: 3430 pqi_aio_path_disabled(io_request); 3431 io_request->status = -EAGAIN; 3432 break; 3433 case PQI_RESPONSE_IU_RAID_PATH_IO_ERROR: 3434 case PQI_RESPONSE_IU_AIO_PATH_IO_ERROR: 3435 io_request->error_info = ctrl_info->error_buffer + 3436 (get_unaligned_le16(&response->error_index) * 3437 PQI_ERROR_BUFFER_ELEMENT_LENGTH); 3438 pqi_process_io_error(response->header.iu_type, io_request); 3439 break; 3440 default: 3441 pqi_invalid_response(ctrl_info, PQI_UNEXPECTED_IU_TYPE); 3442 dev_err(&ctrl_info->pci_dev->dev, 3443 "unexpected IU type: 0x%x: producer index: %u consumer index: %u\n", 3444 response->header.iu_type, oq_pi, oq_ci); 3445 return -1; 3446 } 3447 3448 io_request->io_complete_callback(io_request, io_request->context); 3449 3450 /* 3451 * Note that the I/O request structure CANNOT BE TOUCHED after 3452 * returning from the I/O completion callback! 3453 */ 3454 oq_ci = (oq_ci + 1) % ctrl_info->num_elements_per_oq; 3455 } 3456 3457 if (num_responses) { 3458 queue_group->oq_ci_copy = oq_ci; 3459 writel(oq_ci, queue_group->oq_ci); 3460 } 3461 3462 return num_responses; 3463 } 3464 3465 static inline unsigned int pqi_num_elements_free(unsigned int pi, 3466 unsigned int ci, unsigned int elements_in_queue) 3467 { 3468 unsigned int num_elements_used; 3469 3470 if (pi >= ci) 3471 num_elements_used = pi - ci; 3472 else 3473 num_elements_used = elements_in_queue - ci + pi; 3474 3475 return elements_in_queue - num_elements_used - 1; 3476 } 3477 3478 static void pqi_send_event_ack(struct pqi_ctrl_info *ctrl_info, 3479 struct pqi_event_acknowledge_request *iu, size_t iu_length) 3480 { 3481 pqi_index_t iq_pi; 3482 pqi_index_t iq_ci; 3483 unsigned long flags; 3484 void *next_element; 3485 struct pqi_queue_group *queue_group; 3486 3487 queue_group = &ctrl_info->queue_groups[PQI_DEFAULT_QUEUE_GROUP]; 3488 put_unaligned_le16(queue_group->oq_id, &iu->header.response_queue_id); 3489 3490 while (1) { 3491 spin_lock_irqsave(&queue_group->submit_lock[RAID_PATH], flags); 3492 3493 iq_pi = queue_group->iq_pi_copy[RAID_PATH]; 3494 iq_ci = readl(queue_group->iq_ci[RAID_PATH]); 3495 3496 if (pqi_num_elements_free(iq_pi, iq_ci, 3497 ctrl_info->num_elements_per_iq)) 3498 break; 3499 3500 spin_unlock_irqrestore( 3501 &queue_group->submit_lock[RAID_PATH], flags); 3502 3503 if (pqi_ctrl_offline(ctrl_info)) 3504 return; 3505 } 3506 3507 next_element = queue_group->iq_element_array[RAID_PATH] + 3508 (iq_pi * PQI_OPERATIONAL_IQ_ELEMENT_LENGTH); 3509 3510 memcpy(next_element, iu, iu_length); 3511 3512 iq_pi = (iq_pi + 1) % ctrl_info->num_elements_per_iq; 3513 queue_group->iq_pi_copy[RAID_PATH] = iq_pi; 3514 3515 /* 3516 * This write notifies the controller that an IU is available to be 3517 * processed. 3518 */ 3519 writel(iq_pi, queue_group->iq_pi[RAID_PATH]); 3520 3521 spin_unlock_irqrestore(&queue_group->submit_lock[RAID_PATH], flags); 3522 } 3523 3524 static void pqi_acknowledge_event(struct pqi_ctrl_info *ctrl_info, 3525 struct pqi_event *event) 3526 { 3527 struct pqi_event_acknowledge_request request; 3528 3529 memset(&request, 0, sizeof(request)); 3530 3531 request.header.iu_type = PQI_REQUEST_IU_ACKNOWLEDGE_VENDOR_EVENT; 3532 put_unaligned_le16(sizeof(request) - PQI_REQUEST_HEADER_LENGTH, 3533 &request.header.iu_length); 3534 request.event_type = event->event_type; 3535 put_unaligned_le16(event->event_id, &request.event_id); 3536 put_unaligned_le32(event->additional_event_id, &request.additional_event_id); 3537 3538 pqi_send_event_ack(ctrl_info, &request, sizeof(request)); 3539 } 3540 3541 #define PQI_SOFT_RESET_STATUS_TIMEOUT_SECS 30 3542 #define PQI_SOFT_RESET_STATUS_POLL_INTERVAL_SECS 1 3543 3544 static enum pqi_soft_reset_status pqi_poll_for_soft_reset_status( 3545 struct pqi_ctrl_info *ctrl_info) 3546 { 3547 u8 status; 3548 unsigned long timeout; 3549 3550 timeout = (PQI_SOFT_RESET_STATUS_TIMEOUT_SECS * HZ) + jiffies; 3551 3552 while (1) { 3553 status = pqi_read_soft_reset_status(ctrl_info); 3554 if (status & PQI_SOFT_RESET_INITIATE) 3555 return RESET_INITIATE_DRIVER; 3556 3557 if (status & PQI_SOFT_RESET_ABORT) 3558 return RESET_ABORT; 3559 3560 if (!sis_is_firmware_running(ctrl_info)) 3561 return RESET_NORESPONSE; 3562 3563 if (time_after(jiffies, timeout)) { 3564 dev_warn(&ctrl_info->pci_dev->dev, 3565 "timed out waiting for soft reset status\n"); 3566 return RESET_TIMEDOUT; 3567 } 3568 3569 ssleep(PQI_SOFT_RESET_STATUS_POLL_INTERVAL_SECS); 3570 } 3571 } 3572 3573 static void pqi_process_soft_reset(struct pqi_ctrl_info *ctrl_info) 3574 { 3575 int rc; 3576 unsigned int delay_secs; 3577 enum pqi_soft_reset_status reset_status; 3578 3579 if (ctrl_info->soft_reset_handshake_supported) 3580 reset_status = pqi_poll_for_soft_reset_status(ctrl_info); 3581 else 3582 reset_status = RESET_INITIATE_FIRMWARE; 3583 3584 delay_secs = PQI_POST_RESET_DELAY_SECS; 3585 3586 switch (reset_status) { 3587 case RESET_TIMEDOUT: 3588 delay_secs = PQI_POST_OFA_RESET_DELAY_UPON_TIMEOUT_SECS; 3589 fallthrough; 3590 case RESET_INITIATE_DRIVER: 3591 dev_info(&ctrl_info->pci_dev->dev, 3592 "Online Firmware Activation: resetting controller\n"); 3593 sis_soft_reset(ctrl_info); 3594 fallthrough; 3595 case RESET_INITIATE_FIRMWARE: 3596 ctrl_info->pqi_mode_enabled = false; 3597 pqi_save_ctrl_mode(ctrl_info, SIS_MODE); 3598 rc = pqi_ofa_ctrl_restart(ctrl_info, delay_secs); 3599 pqi_ofa_free_host_buffer(ctrl_info); 3600 pqi_ctrl_ofa_done(ctrl_info); 3601 dev_info(&ctrl_info->pci_dev->dev, 3602 "Online Firmware Activation: %s\n", 3603 rc == 0 ? "SUCCESS" : "FAILED"); 3604 break; 3605 case RESET_ABORT: 3606 dev_info(&ctrl_info->pci_dev->dev, 3607 "Online Firmware Activation ABORTED\n"); 3608 if (ctrl_info->soft_reset_handshake_supported) 3609 pqi_clear_soft_reset_status(ctrl_info); 3610 pqi_ofa_free_host_buffer(ctrl_info); 3611 pqi_ctrl_ofa_done(ctrl_info); 3612 pqi_ofa_ctrl_unquiesce(ctrl_info); 3613 break; 3614 case RESET_NORESPONSE: 3615 fallthrough; 3616 default: 3617 dev_err(&ctrl_info->pci_dev->dev, 3618 "unexpected Online Firmware Activation reset status: 0x%x\n", 3619 reset_status); 3620 pqi_ofa_free_host_buffer(ctrl_info); 3621 pqi_ctrl_ofa_done(ctrl_info); 3622 pqi_ofa_ctrl_unquiesce(ctrl_info); 3623 pqi_take_ctrl_offline(ctrl_info, PQI_OFA_RESPONSE_TIMEOUT); 3624 break; 3625 } 3626 } 3627 3628 static void pqi_ofa_memory_alloc_worker(struct work_struct *work) 3629 { 3630 struct pqi_ctrl_info *ctrl_info; 3631 3632 ctrl_info = container_of(work, struct pqi_ctrl_info, ofa_memory_alloc_work); 3633 3634 pqi_ctrl_ofa_start(ctrl_info); 3635 pqi_ofa_setup_host_buffer(ctrl_info); 3636 pqi_ofa_host_memory_update(ctrl_info); 3637 } 3638 3639 static void pqi_ofa_quiesce_worker(struct work_struct *work) 3640 { 3641 struct pqi_ctrl_info *ctrl_info; 3642 struct pqi_event *event; 3643 3644 ctrl_info = container_of(work, struct pqi_ctrl_info, ofa_quiesce_work); 3645 3646 event = &ctrl_info->events[pqi_event_type_to_event_index(PQI_EVENT_TYPE_OFA)]; 3647 3648 pqi_ofa_ctrl_quiesce(ctrl_info); 3649 pqi_acknowledge_event(ctrl_info, event); 3650 pqi_process_soft_reset(ctrl_info); 3651 } 3652 3653 static bool pqi_ofa_process_event(struct pqi_ctrl_info *ctrl_info, 3654 struct pqi_event *event) 3655 { 3656 bool ack_event; 3657 3658 ack_event = true; 3659 3660 switch (event->event_id) { 3661 case PQI_EVENT_OFA_MEMORY_ALLOCATION: 3662 dev_info(&ctrl_info->pci_dev->dev, 3663 "received Online Firmware Activation memory allocation request\n"); 3664 schedule_work(&ctrl_info->ofa_memory_alloc_work); 3665 break; 3666 case PQI_EVENT_OFA_QUIESCE: 3667 dev_info(&ctrl_info->pci_dev->dev, 3668 "received Online Firmware Activation quiesce request\n"); 3669 schedule_work(&ctrl_info->ofa_quiesce_work); 3670 ack_event = false; 3671 break; 3672 case PQI_EVENT_OFA_CANCELED: 3673 dev_info(&ctrl_info->pci_dev->dev, 3674 "received Online Firmware Activation cancel request: reason: %u\n", 3675 ctrl_info->ofa_cancel_reason); 3676 pqi_ofa_free_host_buffer(ctrl_info); 3677 pqi_ctrl_ofa_done(ctrl_info); 3678 break; 3679 default: 3680 dev_err(&ctrl_info->pci_dev->dev, 3681 "received unknown Online Firmware Activation request: event ID: %u\n", 3682 event->event_id); 3683 break; 3684 } 3685 3686 return ack_event; 3687 } 3688 3689 static void pqi_disable_raid_bypass(struct pqi_ctrl_info *ctrl_info) 3690 { 3691 unsigned long flags; 3692 struct pqi_scsi_dev *device; 3693 3694 spin_lock_irqsave(&ctrl_info->scsi_device_list_lock, flags); 3695 3696 list_for_each_entry(device, &ctrl_info->scsi_device_list, scsi_device_list_entry) 3697 if (device->raid_bypass_enabled) 3698 device->raid_bypass_enabled = false; 3699 3700 spin_unlock_irqrestore(&ctrl_info->scsi_device_list_lock, flags); 3701 } 3702 3703 static void pqi_event_worker(struct work_struct *work) 3704 { 3705 unsigned int i; 3706 bool rescan_needed; 3707 struct pqi_ctrl_info *ctrl_info; 3708 struct pqi_event *event; 3709 bool ack_event; 3710 3711 ctrl_info = container_of(work, struct pqi_ctrl_info, event_work); 3712 3713 pqi_ctrl_busy(ctrl_info); 3714 pqi_wait_if_ctrl_blocked(ctrl_info); 3715 if (pqi_ctrl_offline(ctrl_info)) 3716 goto out; 3717 3718 rescan_needed = false; 3719 event = ctrl_info->events; 3720 for (i = 0; i < PQI_NUM_SUPPORTED_EVENTS; i++) { 3721 if (event->pending) { 3722 event->pending = false; 3723 if (event->event_type == PQI_EVENT_TYPE_OFA) { 3724 ack_event = pqi_ofa_process_event(ctrl_info, event); 3725 } else { 3726 ack_event = true; 3727 rescan_needed = true; 3728 if (event->event_type == PQI_EVENT_TYPE_LOGICAL_DEVICE) 3729 ctrl_info->logical_volume_rescan_needed = true; 3730 else if (event->event_type == PQI_EVENT_TYPE_AIO_STATE_CHANGE) 3731 pqi_disable_raid_bypass(ctrl_info); 3732 } 3733 if (ack_event) 3734 pqi_acknowledge_event(ctrl_info, event); 3735 } 3736 event++; 3737 } 3738 3739 #define PQI_RESCAN_WORK_FOR_EVENT_DELAY (5 * HZ) 3740 3741 if (rescan_needed) 3742 pqi_schedule_rescan_worker_with_delay(ctrl_info, 3743 PQI_RESCAN_WORK_FOR_EVENT_DELAY); 3744 3745 out: 3746 pqi_ctrl_unbusy(ctrl_info); 3747 } 3748 3749 #define PQI_HEARTBEAT_TIMER_INTERVAL (10 * HZ) 3750 3751 static void pqi_heartbeat_timer_handler(struct timer_list *t) 3752 { 3753 int num_interrupts; 3754 u32 heartbeat_count; 3755 struct pqi_ctrl_info *ctrl_info = from_timer(ctrl_info, t, heartbeat_timer); 3756 3757 pqi_check_ctrl_health(ctrl_info); 3758 if (pqi_ctrl_offline(ctrl_info)) 3759 return; 3760 3761 num_interrupts = atomic_read(&ctrl_info->num_interrupts); 3762 heartbeat_count = pqi_read_heartbeat_counter(ctrl_info); 3763 3764 if (num_interrupts == ctrl_info->previous_num_interrupts) { 3765 if (heartbeat_count == ctrl_info->previous_heartbeat_count) { 3766 dev_err(&ctrl_info->pci_dev->dev, 3767 "no heartbeat detected - last heartbeat count: %u\n", 3768 heartbeat_count); 3769 pqi_take_ctrl_offline(ctrl_info, PQI_NO_HEARTBEAT); 3770 return; 3771 } 3772 } else { 3773 ctrl_info->previous_num_interrupts = num_interrupts; 3774 } 3775 3776 ctrl_info->previous_heartbeat_count = heartbeat_count; 3777 mod_timer(&ctrl_info->heartbeat_timer, 3778 jiffies + PQI_HEARTBEAT_TIMER_INTERVAL); 3779 } 3780 3781 static void pqi_start_heartbeat_timer(struct pqi_ctrl_info *ctrl_info) 3782 { 3783 if (!ctrl_info->heartbeat_counter) 3784 return; 3785 3786 ctrl_info->previous_num_interrupts = 3787 atomic_read(&ctrl_info->num_interrupts); 3788 ctrl_info->previous_heartbeat_count = 3789 pqi_read_heartbeat_counter(ctrl_info); 3790 3791 ctrl_info->heartbeat_timer.expires = 3792 jiffies + PQI_HEARTBEAT_TIMER_INTERVAL; 3793 add_timer(&ctrl_info->heartbeat_timer); 3794 } 3795 3796 static inline void pqi_stop_heartbeat_timer(struct pqi_ctrl_info *ctrl_info) 3797 { 3798 del_timer_sync(&ctrl_info->heartbeat_timer); 3799 } 3800 3801 static void pqi_ofa_capture_event_payload(struct pqi_ctrl_info *ctrl_info, 3802 struct pqi_event *event, struct pqi_event_response *response) 3803 { 3804 switch (event->event_id) { 3805 case PQI_EVENT_OFA_MEMORY_ALLOCATION: 3806 ctrl_info->ofa_bytes_requested = 3807 get_unaligned_le32(&response->data.ofa_memory_allocation.bytes_requested); 3808 break; 3809 case PQI_EVENT_OFA_CANCELED: 3810 ctrl_info->ofa_cancel_reason = 3811 get_unaligned_le16(&response->data.ofa_cancelled.reason); 3812 break; 3813 } 3814 } 3815 3816 static int pqi_process_event_intr(struct pqi_ctrl_info *ctrl_info) 3817 { 3818 int num_events; 3819 pqi_index_t oq_pi; 3820 pqi_index_t oq_ci; 3821 struct pqi_event_queue *event_queue; 3822 struct pqi_event_response *response; 3823 struct pqi_event *event; 3824 int event_index; 3825 3826 event_queue = &ctrl_info->event_queue; 3827 num_events = 0; 3828 oq_ci = event_queue->oq_ci_copy; 3829 3830 while (1) { 3831 oq_pi = readl(event_queue->oq_pi); 3832 if (oq_pi >= PQI_NUM_EVENT_QUEUE_ELEMENTS) { 3833 pqi_invalid_response(ctrl_info, PQI_EVENT_PI_OUT_OF_RANGE); 3834 dev_err(&ctrl_info->pci_dev->dev, 3835 "event interrupt: producer index (%u) out of range (0-%u): consumer index: %u\n", 3836 oq_pi, PQI_NUM_EVENT_QUEUE_ELEMENTS - 1, oq_ci); 3837 return -1; 3838 } 3839 3840 if (oq_pi == oq_ci) 3841 break; 3842 3843 num_events++; 3844 response = event_queue->oq_element_array + (oq_ci * PQI_EVENT_OQ_ELEMENT_LENGTH); 3845 3846 event_index = pqi_event_type_to_event_index(response->event_type); 3847 3848 if (event_index >= 0 && response->request_acknowledge) { 3849 event = &ctrl_info->events[event_index]; 3850 event->pending = true; 3851 event->event_type = response->event_type; 3852 event->event_id = get_unaligned_le16(&response->event_id); 3853 event->additional_event_id = 3854 get_unaligned_le32(&response->additional_event_id); 3855 if (event->event_type == PQI_EVENT_TYPE_OFA) 3856 pqi_ofa_capture_event_payload(ctrl_info, event, response); 3857 } 3858 3859 oq_ci = (oq_ci + 1) % PQI_NUM_EVENT_QUEUE_ELEMENTS; 3860 } 3861 3862 if (num_events) { 3863 event_queue->oq_ci_copy = oq_ci; 3864 writel(oq_ci, event_queue->oq_ci); 3865 schedule_work(&ctrl_info->event_work); 3866 } 3867 3868 return num_events; 3869 } 3870 3871 #define PQI_LEGACY_INTX_MASK 0x1 3872 3873 static inline void pqi_configure_legacy_intx(struct pqi_ctrl_info *ctrl_info, bool enable_intx) 3874 { 3875 u32 intx_mask; 3876 struct pqi_device_registers __iomem *pqi_registers; 3877 volatile void __iomem *register_addr; 3878 3879 pqi_registers = ctrl_info->pqi_registers; 3880 3881 if (enable_intx) 3882 register_addr = &pqi_registers->legacy_intx_mask_clear; 3883 else 3884 register_addr = &pqi_registers->legacy_intx_mask_set; 3885 3886 intx_mask = readl(register_addr); 3887 intx_mask |= PQI_LEGACY_INTX_MASK; 3888 writel(intx_mask, register_addr); 3889 } 3890 3891 static void pqi_change_irq_mode(struct pqi_ctrl_info *ctrl_info, 3892 enum pqi_irq_mode new_mode) 3893 { 3894 switch (ctrl_info->irq_mode) { 3895 case IRQ_MODE_MSIX: 3896 switch (new_mode) { 3897 case IRQ_MODE_MSIX: 3898 break; 3899 case IRQ_MODE_INTX: 3900 pqi_configure_legacy_intx(ctrl_info, true); 3901 sis_enable_intx(ctrl_info); 3902 break; 3903 case IRQ_MODE_NONE: 3904 break; 3905 } 3906 break; 3907 case IRQ_MODE_INTX: 3908 switch (new_mode) { 3909 case IRQ_MODE_MSIX: 3910 pqi_configure_legacy_intx(ctrl_info, false); 3911 sis_enable_msix(ctrl_info); 3912 break; 3913 case IRQ_MODE_INTX: 3914 break; 3915 case IRQ_MODE_NONE: 3916 pqi_configure_legacy_intx(ctrl_info, false); 3917 break; 3918 } 3919 break; 3920 case IRQ_MODE_NONE: 3921 switch (new_mode) { 3922 case IRQ_MODE_MSIX: 3923 sis_enable_msix(ctrl_info); 3924 break; 3925 case IRQ_MODE_INTX: 3926 pqi_configure_legacy_intx(ctrl_info, true); 3927 sis_enable_intx(ctrl_info); 3928 break; 3929 case IRQ_MODE_NONE: 3930 break; 3931 } 3932 break; 3933 } 3934 3935 ctrl_info->irq_mode = new_mode; 3936 } 3937 3938 #define PQI_LEGACY_INTX_PENDING 0x1 3939 3940 static inline bool pqi_is_valid_irq(struct pqi_ctrl_info *ctrl_info) 3941 { 3942 bool valid_irq; 3943 u32 intx_status; 3944 3945 switch (ctrl_info->irq_mode) { 3946 case IRQ_MODE_MSIX: 3947 valid_irq = true; 3948 break; 3949 case IRQ_MODE_INTX: 3950 intx_status = readl(&ctrl_info->pqi_registers->legacy_intx_status); 3951 if (intx_status & PQI_LEGACY_INTX_PENDING) 3952 valid_irq = true; 3953 else 3954 valid_irq = false; 3955 break; 3956 case IRQ_MODE_NONE: 3957 default: 3958 valid_irq = false; 3959 break; 3960 } 3961 3962 return valid_irq; 3963 } 3964 3965 static irqreturn_t pqi_irq_handler(int irq, void *data) 3966 { 3967 struct pqi_ctrl_info *ctrl_info; 3968 struct pqi_queue_group *queue_group; 3969 int num_io_responses_handled; 3970 int num_events_handled; 3971 3972 queue_group = data; 3973 ctrl_info = queue_group->ctrl_info; 3974 3975 if (!pqi_is_valid_irq(ctrl_info)) 3976 return IRQ_NONE; 3977 3978 num_io_responses_handled = pqi_process_io_intr(ctrl_info, queue_group); 3979 if (num_io_responses_handled < 0) 3980 goto out; 3981 3982 if (irq == ctrl_info->event_irq) { 3983 num_events_handled = pqi_process_event_intr(ctrl_info); 3984 if (num_events_handled < 0) 3985 goto out; 3986 } else { 3987 num_events_handled = 0; 3988 } 3989 3990 if (num_io_responses_handled + num_events_handled > 0) 3991 atomic_inc(&ctrl_info->num_interrupts); 3992 3993 pqi_start_io(ctrl_info, queue_group, RAID_PATH, NULL); 3994 pqi_start_io(ctrl_info, queue_group, AIO_PATH, NULL); 3995 3996 out: 3997 return IRQ_HANDLED; 3998 } 3999 4000 static int pqi_request_irqs(struct pqi_ctrl_info *ctrl_info) 4001 { 4002 struct pci_dev *pci_dev = ctrl_info->pci_dev; 4003 int i; 4004 int rc; 4005 4006 ctrl_info->event_irq = pci_irq_vector(pci_dev, 0); 4007 4008 for (i = 0; i < ctrl_info->num_msix_vectors_enabled; i++) { 4009 rc = request_irq(pci_irq_vector(pci_dev, i), pqi_irq_handler, 0, 4010 DRIVER_NAME_SHORT, &ctrl_info->queue_groups[i]); 4011 if (rc) { 4012 dev_err(&pci_dev->dev, 4013 "irq %u init failed with error %d\n", 4014 pci_irq_vector(pci_dev, i), rc); 4015 return rc; 4016 } 4017 ctrl_info->num_msix_vectors_initialized++; 4018 } 4019 4020 return 0; 4021 } 4022 4023 static void pqi_free_irqs(struct pqi_ctrl_info *ctrl_info) 4024 { 4025 int i; 4026 4027 for (i = 0; i < ctrl_info->num_msix_vectors_initialized; i++) 4028 free_irq(pci_irq_vector(ctrl_info->pci_dev, i), 4029 &ctrl_info->queue_groups[i]); 4030 4031 ctrl_info->num_msix_vectors_initialized = 0; 4032 } 4033 4034 static int pqi_enable_msix_interrupts(struct pqi_ctrl_info *ctrl_info) 4035 { 4036 int num_vectors_enabled; 4037 unsigned int flags = PCI_IRQ_MSIX; 4038 4039 if (!pqi_disable_managed_interrupts) 4040 flags |= PCI_IRQ_AFFINITY; 4041 4042 num_vectors_enabled = pci_alloc_irq_vectors(ctrl_info->pci_dev, 4043 PQI_MIN_MSIX_VECTORS, ctrl_info->num_queue_groups, 4044 flags); 4045 if (num_vectors_enabled < 0) { 4046 dev_err(&ctrl_info->pci_dev->dev, 4047 "MSI-X init failed with error %d\n", 4048 num_vectors_enabled); 4049 return num_vectors_enabled; 4050 } 4051 4052 ctrl_info->num_msix_vectors_enabled = num_vectors_enabled; 4053 ctrl_info->irq_mode = IRQ_MODE_MSIX; 4054 return 0; 4055 } 4056 4057 static void pqi_disable_msix_interrupts(struct pqi_ctrl_info *ctrl_info) 4058 { 4059 if (ctrl_info->num_msix_vectors_enabled) { 4060 pci_free_irq_vectors(ctrl_info->pci_dev); 4061 ctrl_info->num_msix_vectors_enabled = 0; 4062 } 4063 } 4064 4065 static int pqi_alloc_operational_queues(struct pqi_ctrl_info *ctrl_info) 4066 { 4067 unsigned int i; 4068 size_t alloc_length; 4069 size_t element_array_length_per_iq; 4070 size_t element_array_length_per_oq; 4071 void *element_array; 4072 void __iomem *next_queue_index; 4073 void *aligned_pointer; 4074 unsigned int num_inbound_queues; 4075 unsigned int num_outbound_queues; 4076 unsigned int num_queue_indexes; 4077 struct pqi_queue_group *queue_group; 4078 4079 element_array_length_per_iq = 4080 PQI_OPERATIONAL_IQ_ELEMENT_LENGTH * 4081 ctrl_info->num_elements_per_iq; 4082 element_array_length_per_oq = 4083 PQI_OPERATIONAL_OQ_ELEMENT_LENGTH * 4084 ctrl_info->num_elements_per_oq; 4085 num_inbound_queues = ctrl_info->num_queue_groups * 2; 4086 num_outbound_queues = ctrl_info->num_queue_groups; 4087 num_queue_indexes = (ctrl_info->num_queue_groups * 3) + 1; 4088 4089 aligned_pointer = NULL; 4090 4091 for (i = 0; i < num_inbound_queues; i++) { 4092 aligned_pointer = PTR_ALIGN(aligned_pointer, 4093 PQI_QUEUE_ELEMENT_ARRAY_ALIGNMENT); 4094 aligned_pointer += element_array_length_per_iq; 4095 } 4096 4097 for (i = 0; i < num_outbound_queues; i++) { 4098 aligned_pointer = PTR_ALIGN(aligned_pointer, 4099 PQI_QUEUE_ELEMENT_ARRAY_ALIGNMENT); 4100 aligned_pointer += element_array_length_per_oq; 4101 } 4102 4103 aligned_pointer = PTR_ALIGN(aligned_pointer, 4104 PQI_QUEUE_ELEMENT_ARRAY_ALIGNMENT); 4105 aligned_pointer += PQI_NUM_EVENT_QUEUE_ELEMENTS * 4106 PQI_EVENT_OQ_ELEMENT_LENGTH; 4107 4108 for (i = 0; i < num_queue_indexes; i++) { 4109 aligned_pointer = PTR_ALIGN(aligned_pointer, 4110 PQI_OPERATIONAL_INDEX_ALIGNMENT); 4111 aligned_pointer += sizeof(pqi_index_t); 4112 } 4113 4114 alloc_length = (size_t)aligned_pointer + 4115 PQI_QUEUE_ELEMENT_ARRAY_ALIGNMENT; 4116 4117 alloc_length += PQI_EXTRA_SGL_MEMORY; 4118 4119 ctrl_info->queue_memory_base = 4120 dma_alloc_coherent(&ctrl_info->pci_dev->dev, alloc_length, 4121 &ctrl_info->queue_memory_base_dma_handle, 4122 GFP_KERNEL); 4123 4124 if (!ctrl_info->queue_memory_base) 4125 return -ENOMEM; 4126 4127 ctrl_info->queue_memory_length = alloc_length; 4128 4129 element_array = PTR_ALIGN(ctrl_info->queue_memory_base, 4130 PQI_QUEUE_ELEMENT_ARRAY_ALIGNMENT); 4131 4132 for (i = 0; i < ctrl_info->num_queue_groups; i++) { 4133 queue_group = &ctrl_info->queue_groups[i]; 4134 queue_group->iq_element_array[RAID_PATH] = element_array; 4135 queue_group->iq_element_array_bus_addr[RAID_PATH] = 4136 ctrl_info->queue_memory_base_dma_handle + 4137 (element_array - ctrl_info->queue_memory_base); 4138 element_array += element_array_length_per_iq; 4139 element_array = PTR_ALIGN(element_array, 4140 PQI_QUEUE_ELEMENT_ARRAY_ALIGNMENT); 4141 queue_group->iq_element_array[AIO_PATH] = element_array; 4142 queue_group->iq_element_array_bus_addr[AIO_PATH] = 4143 ctrl_info->queue_memory_base_dma_handle + 4144 (element_array - ctrl_info->queue_memory_base); 4145 element_array += element_array_length_per_iq; 4146 element_array = PTR_ALIGN(element_array, 4147 PQI_QUEUE_ELEMENT_ARRAY_ALIGNMENT); 4148 } 4149 4150 for (i = 0; i < ctrl_info->num_queue_groups; i++) { 4151 queue_group = &ctrl_info->queue_groups[i]; 4152 queue_group->oq_element_array = element_array; 4153 queue_group->oq_element_array_bus_addr = 4154 ctrl_info->queue_memory_base_dma_handle + 4155 (element_array - ctrl_info->queue_memory_base); 4156 element_array += element_array_length_per_oq; 4157 element_array = PTR_ALIGN(element_array, 4158 PQI_QUEUE_ELEMENT_ARRAY_ALIGNMENT); 4159 } 4160 4161 ctrl_info->event_queue.oq_element_array = element_array; 4162 ctrl_info->event_queue.oq_element_array_bus_addr = 4163 ctrl_info->queue_memory_base_dma_handle + 4164 (element_array - ctrl_info->queue_memory_base); 4165 element_array += PQI_NUM_EVENT_QUEUE_ELEMENTS * 4166 PQI_EVENT_OQ_ELEMENT_LENGTH; 4167 4168 next_queue_index = (void __iomem *)PTR_ALIGN(element_array, 4169 PQI_OPERATIONAL_INDEX_ALIGNMENT); 4170 4171 for (i = 0; i < ctrl_info->num_queue_groups; i++) { 4172 queue_group = &ctrl_info->queue_groups[i]; 4173 queue_group->iq_ci[RAID_PATH] = next_queue_index; 4174 queue_group->iq_ci_bus_addr[RAID_PATH] = 4175 ctrl_info->queue_memory_base_dma_handle + 4176 (next_queue_index - 4177 (void __iomem *)ctrl_info->queue_memory_base); 4178 next_queue_index += sizeof(pqi_index_t); 4179 next_queue_index = PTR_ALIGN(next_queue_index, 4180 PQI_OPERATIONAL_INDEX_ALIGNMENT); 4181 queue_group->iq_ci[AIO_PATH] = next_queue_index; 4182 queue_group->iq_ci_bus_addr[AIO_PATH] = 4183 ctrl_info->queue_memory_base_dma_handle + 4184 (next_queue_index - 4185 (void __iomem *)ctrl_info->queue_memory_base); 4186 next_queue_index += sizeof(pqi_index_t); 4187 next_queue_index = PTR_ALIGN(next_queue_index, 4188 PQI_OPERATIONAL_INDEX_ALIGNMENT); 4189 queue_group->oq_pi = next_queue_index; 4190 queue_group->oq_pi_bus_addr = 4191 ctrl_info->queue_memory_base_dma_handle + 4192 (next_queue_index - 4193 (void __iomem *)ctrl_info->queue_memory_base); 4194 next_queue_index += sizeof(pqi_index_t); 4195 next_queue_index = PTR_ALIGN(next_queue_index, 4196 PQI_OPERATIONAL_INDEX_ALIGNMENT); 4197 } 4198 4199 ctrl_info->event_queue.oq_pi = next_queue_index; 4200 ctrl_info->event_queue.oq_pi_bus_addr = 4201 ctrl_info->queue_memory_base_dma_handle + 4202 (next_queue_index - 4203 (void __iomem *)ctrl_info->queue_memory_base); 4204 4205 return 0; 4206 } 4207 4208 static void pqi_init_operational_queues(struct pqi_ctrl_info *ctrl_info) 4209 { 4210 unsigned int i; 4211 u16 next_iq_id = PQI_MIN_OPERATIONAL_QUEUE_ID; 4212 u16 next_oq_id = PQI_MIN_OPERATIONAL_QUEUE_ID; 4213 4214 /* 4215 * Initialize the backpointers to the controller structure in 4216 * each operational queue group structure. 4217 */ 4218 for (i = 0; i < ctrl_info->num_queue_groups; i++) 4219 ctrl_info->queue_groups[i].ctrl_info = ctrl_info; 4220 4221 /* 4222 * Assign IDs to all operational queues. Note that the IDs 4223 * assigned to operational IQs are independent of the IDs 4224 * assigned to operational OQs. 4225 */ 4226 ctrl_info->event_queue.oq_id = next_oq_id++; 4227 for (i = 0; i < ctrl_info->num_queue_groups; i++) { 4228 ctrl_info->queue_groups[i].iq_id[RAID_PATH] = next_iq_id++; 4229 ctrl_info->queue_groups[i].iq_id[AIO_PATH] = next_iq_id++; 4230 ctrl_info->queue_groups[i].oq_id = next_oq_id++; 4231 } 4232 4233 /* 4234 * Assign MSI-X table entry indexes to all queues. Note that the 4235 * interrupt for the event queue is shared with the first queue group. 4236 */ 4237 ctrl_info->event_queue.int_msg_num = 0; 4238 for (i = 0; i < ctrl_info->num_queue_groups; i++) 4239 ctrl_info->queue_groups[i].int_msg_num = i; 4240 4241 for (i = 0; i < ctrl_info->num_queue_groups; i++) { 4242 spin_lock_init(&ctrl_info->queue_groups[i].submit_lock[0]); 4243 spin_lock_init(&ctrl_info->queue_groups[i].submit_lock[1]); 4244 INIT_LIST_HEAD(&ctrl_info->queue_groups[i].request_list[0]); 4245 INIT_LIST_HEAD(&ctrl_info->queue_groups[i].request_list[1]); 4246 } 4247 } 4248 4249 static int pqi_alloc_admin_queues(struct pqi_ctrl_info *ctrl_info) 4250 { 4251 size_t alloc_length; 4252 struct pqi_admin_queues_aligned *admin_queues_aligned; 4253 struct pqi_admin_queues *admin_queues; 4254 4255 alloc_length = sizeof(struct pqi_admin_queues_aligned) + 4256 PQI_QUEUE_ELEMENT_ARRAY_ALIGNMENT; 4257 4258 ctrl_info->admin_queue_memory_base = 4259 dma_alloc_coherent(&ctrl_info->pci_dev->dev, alloc_length, 4260 &ctrl_info->admin_queue_memory_base_dma_handle, 4261 GFP_KERNEL); 4262 4263 if (!ctrl_info->admin_queue_memory_base) 4264 return -ENOMEM; 4265 4266 ctrl_info->admin_queue_memory_length = alloc_length; 4267 4268 admin_queues = &ctrl_info->admin_queues; 4269 admin_queues_aligned = PTR_ALIGN(ctrl_info->admin_queue_memory_base, 4270 PQI_QUEUE_ELEMENT_ARRAY_ALIGNMENT); 4271 admin_queues->iq_element_array = 4272 &admin_queues_aligned->iq_element_array; 4273 admin_queues->oq_element_array = 4274 &admin_queues_aligned->oq_element_array; 4275 admin_queues->iq_ci = 4276 (pqi_index_t __iomem *)&admin_queues_aligned->iq_ci; 4277 admin_queues->oq_pi = 4278 (pqi_index_t __iomem *)&admin_queues_aligned->oq_pi; 4279 4280 admin_queues->iq_element_array_bus_addr = 4281 ctrl_info->admin_queue_memory_base_dma_handle + 4282 (admin_queues->iq_element_array - 4283 ctrl_info->admin_queue_memory_base); 4284 admin_queues->oq_element_array_bus_addr = 4285 ctrl_info->admin_queue_memory_base_dma_handle + 4286 (admin_queues->oq_element_array - 4287 ctrl_info->admin_queue_memory_base); 4288 admin_queues->iq_ci_bus_addr = 4289 ctrl_info->admin_queue_memory_base_dma_handle + 4290 ((void __iomem *)admin_queues->iq_ci - 4291 (void __iomem *)ctrl_info->admin_queue_memory_base); 4292 admin_queues->oq_pi_bus_addr = 4293 ctrl_info->admin_queue_memory_base_dma_handle + 4294 ((void __iomem *)admin_queues->oq_pi - 4295 (void __iomem *)ctrl_info->admin_queue_memory_base); 4296 4297 return 0; 4298 } 4299 4300 #define PQI_ADMIN_QUEUE_CREATE_TIMEOUT_JIFFIES HZ 4301 #define PQI_ADMIN_QUEUE_CREATE_POLL_INTERVAL_MSECS 1 4302 4303 static int pqi_create_admin_queues(struct pqi_ctrl_info *ctrl_info) 4304 { 4305 struct pqi_device_registers __iomem *pqi_registers; 4306 struct pqi_admin_queues *admin_queues; 4307 unsigned long timeout; 4308 u8 status; 4309 u32 reg; 4310 4311 pqi_registers = ctrl_info->pqi_registers; 4312 admin_queues = &ctrl_info->admin_queues; 4313 4314 writeq((u64)admin_queues->iq_element_array_bus_addr, 4315 &pqi_registers->admin_iq_element_array_addr); 4316 writeq((u64)admin_queues->oq_element_array_bus_addr, 4317 &pqi_registers->admin_oq_element_array_addr); 4318 writeq((u64)admin_queues->iq_ci_bus_addr, 4319 &pqi_registers->admin_iq_ci_addr); 4320 writeq((u64)admin_queues->oq_pi_bus_addr, 4321 &pqi_registers->admin_oq_pi_addr); 4322 4323 reg = PQI_ADMIN_IQ_NUM_ELEMENTS | 4324 (PQI_ADMIN_OQ_NUM_ELEMENTS << 8) | 4325 (admin_queues->int_msg_num << 16); 4326 writel(reg, &pqi_registers->admin_iq_num_elements); 4327 4328 writel(PQI_CREATE_ADMIN_QUEUE_PAIR, 4329 &pqi_registers->function_and_status_code); 4330 4331 timeout = PQI_ADMIN_QUEUE_CREATE_TIMEOUT_JIFFIES + jiffies; 4332 while (1) { 4333 msleep(PQI_ADMIN_QUEUE_CREATE_POLL_INTERVAL_MSECS); 4334 status = readb(&pqi_registers->function_and_status_code); 4335 if (status == PQI_STATUS_IDLE) 4336 break; 4337 if (time_after(jiffies, timeout)) 4338 return -ETIMEDOUT; 4339 } 4340 4341 /* 4342 * The offset registers are not initialized to the correct 4343 * offsets until *after* the create admin queue pair command 4344 * completes successfully. 4345 */ 4346 admin_queues->iq_pi = ctrl_info->iomem_base + 4347 PQI_DEVICE_REGISTERS_OFFSET + 4348 readq(&pqi_registers->admin_iq_pi_offset); 4349 admin_queues->oq_ci = ctrl_info->iomem_base + 4350 PQI_DEVICE_REGISTERS_OFFSET + 4351 readq(&pqi_registers->admin_oq_ci_offset); 4352 4353 return 0; 4354 } 4355 4356 static void pqi_submit_admin_request(struct pqi_ctrl_info *ctrl_info, 4357 struct pqi_general_admin_request *request) 4358 { 4359 struct pqi_admin_queues *admin_queues; 4360 void *next_element; 4361 pqi_index_t iq_pi; 4362 4363 admin_queues = &ctrl_info->admin_queues; 4364 iq_pi = admin_queues->iq_pi_copy; 4365 4366 next_element = admin_queues->iq_element_array + 4367 (iq_pi * PQI_ADMIN_IQ_ELEMENT_LENGTH); 4368 4369 memcpy(next_element, request, sizeof(*request)); 4370 4371 iq_pi = (iq_pi + 1) % PQI_ADMIN_IQ_NUM_ELEMENTS; 4372 admin_queues->iq_pi_copy = iq_pi; 4373 4374 /* 4375 * This write notifies the controller that an IU is available to be 4376 * processed. 4377 */ 4378 writel(iq_pi, admin_queues->iq_pi); 4379 } 4380 4381 #define PQI_ADMIN_REQUEST_TIMEOUT_SECS 60 4382 4383 static int pqi_poll_for_admin_response(struct pqi_ctrl_info *ctrl_info, 4384 struct pqi_general_admin_response *response) 4385 { 4386 struct pqi_admin_queues *admin_queues; 4387 pqi_index_t oq_pi; 4388 pqi_index_t oq_ci; 4389 unsigned long timeout; 4390 4391 admin_queues = &ctrl_info->admin_queues; 4392 oq_ci = admin_queues->oq_ci_copy; 4393 4394 timeout = (PQI_ADMIN_REQUEST_TIMEOUT_SECS * HZ) + jiffies; 4395 4396 while (1) { 4397 oq_pi = readl(admin_queues->oq_pi); 4398 if (oq_pi != oq_ci) 4399 break; 4400 if (time_after(jiffies, timeout)) { 4401 dev_err(&ctrl_info->pci_dev->dev, 4402 "timed out waiting for admin response\n"); 4403 return -ETIMEDOUT; 4404 } 4405 if (!sis_is_firmware_running(ctrl_info)) 4406 return -ENXIO; 4407 usleep_range(1000, 2000); 4408 } 4409 4410 memcpy(response, admin_queues->oq_element_array + 4411 (oq_ci * PQI_ADMIN_OQ_ELEMENT_LENGTH), sizeof(*response)); 4412 4413 oq_ci = (oq_ci + 1) % PQI_ADMIN_OQ_NUM_ELEMENTS; 4414 admin_queues->oq_ci_copy = oq_ci; 4415 writel(oq_ci, admin_queues->oq_ci); 4416 4417 return 0; 4418 } 4419 4420 static void pqi_start_io(struct pqi_ctrl_info *ctrl_info, 4421 struct pqi_queue_group *queue_group, enum pqi_io_path path, 4422 struct pqi_io_request *io_request) 4423 { 4424 struct pqi_io_request *next; 4425 void *next_element; 4426 pqi_index_t iq_pi; 4427 pqi_index_t iq_ci; 4428 size_t iu_length; 4429 unsigned long flags; 4430 unsigned int num_elements_needed; 4431 unsigned int num_elements_to_end_of_queue; 4432 size_t copy_count; 4433 struct pqi_iu_header *request; 4434 4435 spin_lock_irqsave(&queue_group->submit_lock[path], flags); 4436 4437 if (io_request) { 4438 io_request->queue_group = queue_group; 4439 list_add_tail(&io_request->request_list_entry, 4440 &queue_group->request_list[path]); 4441 } 4442 4443 iq_pi = queue_group->iq_pi_copy[path]; 4444 4445 list_for_each_entry_safe(io_request, next, 4446 &queue_group->request_list[path], request_list_entry) { 4447 4448 request = io_request->iu; 4449 4450 iu_length = get_unaligned_le16(&request->iu_length) + 4451 PQI_REQUEST_HEADER_LENGTH; 4452 num_elements_needed = 4453 DIV_ROUND_UP(iu_length, 4454 PQI_OPERATIONAL_IQ_ELEMENT_LENGTH); 4455 4456 iq_ci = readl(queue_group->iq_ci[path]); 4457 4458 if (num_elements_needed > pqi_num_elements_free(iq_pi, iq_ci, 4459 ctrl_info->num_elements_per_iq)) 4460 break; 4461 4462 put_unaligned_le16(queue_group->oq_id, 4463 &request->response_queue_id); 4464 4465 next_element = queue_group->iq_element_array[path] + 4466 (iq_pi * PQI_OPERATIONAL_IQ_ELEMENT_LENGTH); 4467 4468 num_elements_to_end_of_queue = 4469 ctrl_info->num_elements_per_iq - iq_pi; 4470 4471 if (num_elements_needed <= num_elements_to_end_of_queue) { 4472 memcpy(next_element, request, iu_length); 4473 } else { 4474 copy_count = num_elements_to_end_of_queue * 4475 PQI_OPERATIONAL_IQ_ELEMENT_LENGTH; 4476 memcpy(next_element, request, copy_count); 4477 memcpy(queue_group->iq_element_array[path], 4478 (u8 *)request + copy_count, 4479 iu_length - copy_count); 4480 } 4481 4482 iq_pi = (iq_pi + num_elements_needed) % 4483 ctrl_info->num_elements_per_iq; 4484 4485 list_del(&io_request->request_list_entry); 4486 } 4487 4488 if (iq_pi != queue_group->iq_pi_copy[path]) { 4489 queue_group->iq_pi_copy[path] = iq_pi; 4490 /* 4491 * This write notifies the controller that one or more IUs are 4492 * available to be processed. 4493 */ 4494 writel(iq_pi, queue_group->iq_pi[path]); 4495 } 4496 4497 spin_unlock_irqrestore(&queue_group->submit_lock[path], flags); 4498 } 4499 4500 #define PQI_WAIT_FOR_COMPLETION_IO_TIMEOUT_SECS 10 4501 4502 static int pqi_wait_for_completion_io(struct pqi_ctrl_info *ctrl_info, 4503 struct completion *wait) 4504 { 4505 int rc; 4506 4507 while (1) { 4508 if (wait_for_completion_io_timeout(wait, 4509 PQI_WAIT_FOR_COMPLETION_IO_TIMEOUT_SECS * HZ)) { 4510 rc = 0; 4511 break; 4512 } 4513 4514 pqi_check_ctrl_health(ctrl_info); 4515 if (pqi_ctrl_offline(ctrl_info)) { 4516 rc = -ENXIO; 4517 break; 4518 } 4519 } 4520 4521 return rc; 4522 } 4523 4524 static void pqi_raid_synchronous_complete(struct pqi_io_request *io_request, 4525 void *context) 4526 { 4527 struct completion *waiting = context; 4528 4529 complete(waiting); 4530 } 4531 4532 static int pqi_process_raid_io_error_synchronous( 4533 struct pqi_raid_error_info *error_info) 4534 { 4535 int rc = -EIO; 4536 4537 switch (error_info->data_out_result) { 4538 case PQI_DATA_IN_OUT_GOOD: 4539 if (error_info->status == SAM_STAT_GOOD) 4540 rc = 0; 4541 break; 4542 case PQI_DATA_IN_OUT_UNDERFLOW: 4543 if (error_info->status == SAM_STAT_GOOD || 4544 error_info->status == SAM_STAT_CHECK_CONDITION) 4545 rc = 0; 4546 break; 4547 case PQI_DATA_IN_OUT_ABORTED: 4548 rc = PQI_CMD_STATUS_ABORTED; 4549 break; 4550 } 4551 4552 return rc; 4553 } 4554 4555 static inline bool pqi_is_blockable_request(struct pqi_iu_header *request) 4556 { 4557 return (request->driver_flags & PQI_DRIVER_NONBLOCKABLE_REQUEST) == 0; 4558 } 4559 4560 static int pqi_submit_raid_request_synchronous(struct pqi_ctrl_info *ctrl_info, 4561 struct pqi_iu_header *request, unsigned int flags, 4562 struct pqi_raid_error_info *error_info) 4563 { 4564 int rc = 0; 4565 struct pqi_io_request *io_request; 4566 size_t iu_length; 4567 DECLARE_COMPLETION_ONSTACK(wait); 4568 4569 if (flags & PQI_SYNC_FLAGS_INTERRUPTABLE) { 4570 if (down_interruptible(&ctrl_info->sync_request_sem)) 4571 return -ERESTARTSYS; 4572 } else { 4573 down(&ctrl_info->sync_request_sem); 4574 } 4575 4576 pqi_ctrl_busy(ctrl_info); 4577 /* 4578 * Wait for other admin queue updates such as; 4579 * config table changes, OFA memory updates, ... 4580 */ 4581 if (pqi_is_blockable_request(request)) 4582 pqi_wait_if_ctrl_blocked(ctrl_info); 4583 4584 if (pqi_ctrl_offline(ctrl_info)) { 4585 rc = -ENXIO; 4586 goto out; 4587 } 4588 4589 io_request = pqi_alloc_io_request(ctrl_info); 4590 4591 put_unaligned_le16(io_request->index, 4592 &(((struct pqi_raid_path_request *)request)->request_id)); 4593 4594 if (request->iu_type == PQI_REQUEST_IU_RAID_PATH_IO) 4595 ((struct pqi_raid_path_request *)request)->error_index = 4596 ((struct pqi_raid_path_request *)request)->request_id; 4597 4598 iu_length = get_unaligned_le16(&request->iu_length) + 4599 PQI_REQUEST_HEADER_LENGTH; 4600 memcpy(io_request->iu, request, iu_length); 4601 4602 io_request->io_complete_callback = pqi_raid_synchronous_complete; 4603 io_request->context = &wait; 4604 4605 pqi_start_io(ctrl_info, &ctrl_info->queue_groups[PQI_DEFAULT_QUEUE_GROUP], RAID_PATH, 4606 io_request); 4607 4608 pqi_wait_for_completion_io(ctrl_info, &wait); 4609 4610 if (error_info) { 4611 if (io_request->error_info) 4612 memcpy(error_info, io_request->error_info, sizeof(*error_info)); 4613 else 4614 memset(error_info, 0, sizeof(*error_info)); 4615 } else if (rc == 0 && io_request->error_info) { 4616 rc = pqi_process_raid_io_error_synchronous(io_request->error_info); 4617 } 4618 4619 pqi_free_io_request(io_request); 4620 4621 out: 4622 pqi_ctrl_unbusy(ctrl_info); 4623 up(&ctrl_info->sync_request_sem); 4624 4625 return rc; 4626 } 4627 4628 static int pqi_validate_admin_response( 4629 struct pqi_general_admin_response *response, u8 expected_function_code) 4630 { 4631 if (response->header.iu_type != PQI_RESPONSE_IU_GENERAL_ADMIN) 4632 return -EINVAL; 4633 4634 if (get_unaligned_le16(&response->header.iu_length) != 4635 PQI_GENERAL_ADMIN_IU_LENGTH) 4636 return -EINVAL; 4637 4638 if (response->function_code != expected_function_code) 4639 return -EINVAL; 4640 4641 if (response->status != PQI_GENERAL_ADMIN_STATUS_SUCCESS) 4642 return -EINVAL; 4643 4644 return 0; 4645 } 4646 4647 static int pqi_submit_admin_request_synchronous( 4648 struct pqi_ctrl_info *ctrl_info, 4649 struct pqi_general_admin_request *request, 4650 struct pqi_general_admin_response *response) 4651 { 4652 int rc; 4653 4654 pqi_submit_admin_request(ctrl_info, request); 4655 4656 rc = pqi_poll_for_admin_response(ctrl_info, response); 4657 4658 if (rc == 0) 4659 rc = pqi_validate_admin_response(response, request->function_code); 4660 4661 return rc; 4662 } 4663 4664 static int pqi_report_device_capability(struct pqi_ctrl_info *ctrl_info) 4665 { 4666 int rc; 4667 struct pqi_general_admin_request request; 4668 struct pqi_general_admin_response response; 4669 struct pqi_device_capability *capability; 4670 struct pqi_iu_layer_descriptor *sop_iu_layer_descriptor; 4671 4672 capability = kmalloc(sizeof(*capability), GFP_KERNEL); 4673 if (!capability) 4674 return -ENOMEM; 4675 4676 memset(&request, 0, sizeof(request)); 4677 4678 request.header.iu_type = PQI_REQUEST_IU_GENERAL_ADMIN; 4679 put_unaligned_le16(PQI_GENERAL_ADMIN_IU_LENGTH, 4680 &request.header.iu_length); 4681 request.function_code = 4682 PQI_GENERAL_ADMIN_FUNCTION_REPORT_DEVICE_CAPABILITY; 4683 put_unaligned_le32(sizeof(*capability), 4684 &request.data.report_device_capability.buffer_length); 4685 4686 rc = pqi_map_single(ctrl_info->pci_dev, 4687 &request.data.report_device_capability.sg_descriptor, 4688 capability, sizeof(*capability), 4689 DMA_FROM_DEVICE); 4690 if (rc) 4691 goto out; 4692 4693 rc = pqi_submit_admin_request_synchronous(ctrl_info, &request, &response); 4694 4695 pqi_pci_unmap(ctrl_info->pci_dev, 4696 &request.data.report_device_capability.sg_descriptor, 1, 4697 DMA_FROM_DEVICE); 4698 4699 if (rc) 4700 goto out; 4701 4702 if (response.status != PQI_GENERAL_ADMIN_STATUS_SUCCESS) { 4703 rc = -EIO; 4704 goto out; 4705 } 4706 4707 ctrl_info->max_inbound_queues = 4708 get_unaligned_le16(&capability->max_inbound_queues); 4709 ctrl_info->max_elements_per_iq = 4710 get_unaligned_le16(&capability->max_elements_per_iq); 4711 ctrl_info->max_iq_element_length = 4712 get_unaligned_le16(&capability->max_iq_element_length) 4713 * 16; 4714 ctrl_info->max_outbound_queues = 4715 get_unaligned_le16(&capability->max_outbound_queues); 4716 ctrl_info->max_elements_per_oq = 4717 get_unaligned_le16(&capability->max_elements_per_oq); 4718 ctrl_info->max_oq_element_length = 4719 get_unaligned_le16(&capability->max_oq_element_length) 4720 * 16; 4721 4722 sop_iu_layer_descriptor = 4723 &capability->iu_layer_descriptors[PQI_PROTOCOL_SOP]; 4724 4725 ctrl_info->max_inbound_iu_length_per_firmware = 4726 get_unaligned_le16( 4727 &sop_iu_layer_descriptor->max_inbound_iu_length); 4728 ctrl_info->inbound_spanning_supported = 4729 sop_iu_layer_descriptor->inbound_spanning_supported; 4730 ctrl_info->outbound_spanning_supported = 4731 sop_iu_layer_descriptor->outbound_spanning_supported; 4732 4733 out: 4734 kfree(capability); 4735 4736 return rc; 4737 } 4738 4739 static int pqi_validate_device_capability(struct pqi_ctrl_info *ctrl_info) 4740 { 4741 if (ctrl_info->max_iq_element_length < 4742 PQI_OPERATIONAL_IQ_ELEMENT_LENGTH) { 4743 dev_err(&ctrl_info->pci_dev->dev, 4744 "max. inbound queue element length of %d is less than the required length of %d\n", 4745 ctrl_info->max_iq_element_length, 4746 PQI_OPERATIONAL_IQ_ELEMENT_LENGTH); 4747 return -EINVAL; 4748 } 4749 4750 if (ctrl_info->max_oq_element_length < 4751 PQI_OPERATIONAL_OQ_ELEMENT_LENGTH) { 4752 dev_err(&ctrl_info->pci_dev->dev, 4753 "max. outbound queue element length of %d is less than the required length of %d\n", 4754 ctrl_info->max_oq_element_length, 4755 PQI_OPERATIONAL_OQ_ELEMENT_LENGTH); 4756 return -EINVAL; 4757 } 4758 4759 if (ctrl_info->max_inbound_iu_length_per_firmware < 4760 PQI_OPERATIONAL_IQ_ELEMENT_LENGTH) { 4761 dev_err(&ctrl_info->pci_dev->dev, 4762 "max. inbound IU length of %u is less than the min. required length of %d\n", 4763 ctrl_info->max_inbound_iu_length_per_firmware, 4764 PQI_OPERATIONAL_IQ_ELEMENT_LENGTH); 4765 return -EINVAL; 4766 } 4767 4768 if (!ctrl_info->inbound_spanning_supported) { 4769 dev_err(&ctrl_info->pci_dev->dev, 4770 "the controller does not support inbound spanning\n"); 4771 return -EINVAL; 4772 } 4773 4774 if (ctrl_info->outbound_spanning_supported) { 4775 dev_err(&ctrl_info->pci_dev->dev, 4776 "the controller supports outbound spanning but this driver does not\n"); 4777 return -EINVAL; 4778 } 4779 4780 return 0; 4781 } 4782 4783 static int pqi_create_event_queue(struct pqi_ctrl_info *ctrl_info) 4784 { 4785 int rc; 4786 struct pqi_event_queue *event_queue; 4787 struct pqi_general_admin_request request; 4788 struct pqi_general_admin_response response; 4789 4790 event_queue = &ctrl_info->event_queue; 4791 4792 /* 4793 * Create OQ (Outbound Queue - device to host queue) to dedicate 4794 * to events. 4795 */ 4796 memset(&request, 0, sizeof(request)); 4797 request.header.iu_type = PQI_REQUEST_IU_GENERAL_ADMIN; 4798 put_unaligned_le16(PQI_GENERAL_ADMIN_IU_LENGTH, 4799 &request.header.iu_length); 4800 request.function_code = PQI_GENERAL_ADMIN_FUNCTION_CREATE_OQ; 4801 put_unaligned_le16(event_queue->oq_id, 4802 &request.data.create_operational_oq.queue_id); 4803 put_unaligned_le64((u64)event_queue->oq_element_array_bus_addr, 4804 &request.data.create_operational_oq.element_array_addr); 4805 put_unaligned_le64((u64)event_queue->oq_pi_bus_addr, 4806 &request.data.create_operational_oq.pi_addr); 4807 put_unaligned_le16(PQI_NUM_EVENT_QUEUE_ELEMENTS, 4808 &request.data.create_operational_oq.num_elements); 4809 put_unaligned_le16(PQI_EVENT_OQ_ELEMENT_LENGTH / 16, 4810 &request.data.create_operational_oq.element_length); 4811 request.data.create_operational_oq.queue_protocol = PQI_PROTOCOL_SOP; 4812 put_unaligned_le16(event_queue->int_msg_num, 4813 &request.data.create_operational_oq.int_msg_num); 4814 4815 rc = pqi_submit_admin_request_synchronous(ctrl_info, &request, 4816 &response); 4817 if (rc) 4818 return rc; 4819 4820 event_queue->oq_ci = ctrl_info->iomem_base + 4821 PQI_DEVICE_REGISTERS_OFFSET + 4822 get_unaligned_le64( 4823 &response.data.create_operational_oq.oq_ci_offset); 4824 4825 return 0; 4826 } 4827 4828 static int pqi_create_queue_group(struct pqi_ctrl_info *ctrl_info, 4829 unsigned int group_number) 4830 { 4831 int rc; 4832 struct pqi_queue_group *queue_group; 4833 struct pqi_general_admin_request request; 4834 struct pqi_general_admin_response response; 4835 4836 queue_group = &ctrl_info->queue_groups[group_number]; 4837 4838 /* 4839 * Create IQ (Inbound Queue - host to device queue) for 4840 * RAID path. 4841 */ 4842 memset(&request, 0, sizeof(request)); 4843 request.header.iu_type = PQI_REQUEST_IU_GENERAL_ADMIN; 4844 put_unaligned_le16(PQI_GENERAL_ADMIN_IU_LENGTH, 4845 &request.header.iu_length); 4846 request.function_code = PQI_GENERAL_ADMIN_FUNCTION_CREATE_IQ; 4847 put_unaligned_le16(queue_group->iq_id[RAID_PATH], 4848 &request.data.create_operational_iq.queue_id); 4849 put_unaligned_le64( 4850 (u64)queue_group->iq_element_array_bus_addr[RAID_PATH], 4851 &request.data.create_operational_iq.element_array_addr); 4852 put_unaligned_le64((u64)queue_group->iq_ci_bus_addr[RAID_PATH], 4853 &request.data.create_operational_iq.ci_addr); 4854 put_unaligned_le16(ctrl_info->num_elements_per_iq, 4855 &request.data.create_operational_iq.num_elements); 4856 put_unaligned_le16(PQI_OPERATIONAL_IQ_ELEMENT_LENGTH / 16, 4857 &request.data.create_operational_iq.element_length); 4858 request.data.create_operational_iq.queue_protocol = PQI_PROTOCOL_SOP; 4859 4860 rc = pqi_submit_admin_request_synchronous(ctrl_info, &request, 4861 &response); 4862 if (rc) { 4863 dev_err(&ctrl_info->pci_dev->dev, 4864 "error creating inbound RAID queue\n"); 4865 return rc; 4866 } 4867 4868 queue_group->iq_pi[RAID_PATH] = ctrl_info->iomem_base + 4869 PQI_DEVICE_REGISTERS_OFFSET + 4870 get_unaligned_le64( 4871 &response.data.create_operational_iq.iq_pi_offset); 4872 4873 /* 4874 * Create IQ (Inbound Queue - host to device queue) for 4875 * Advanced I/O (AIO) path. 4876 */ 4877 memset(&request, 0, sizeof(request)); 4878 request.header.iu_type = PQI_REQUEST_IU_GENERAL_ADMIN; 4879 put_unaligned_le16(PQI_GENERAL_ADMIN_IU_LENGTH, 4880 &request.header.iu_length); 4881 request.function_code = PQI_GENERAL_ADMIN_FUNCTION_CREATE_IQ; 4882 put_unaligned_le16(queue_group->iq_id[AIO_PATH], 4883 &request.data.create_operational_iq.queue_id); 4884 put_unaligned_le64((u64)queue_group-> 4885 iq_element_array_bus_addr[AIO_PATH], 4886 &request.data.create_operational_iq.element_array_addr); 4887 put_unaligned_le64((u64)queue_group->iq_ci_bus_addr[AIO_PATH], 4888 &request.data.create_operational_iq.ci_addr); 4889 put_unaligned_le16(ctrl_info->num_elements_per_iq, 4890 &request.data.create_operational_iq.num_elements); 4891 put_unaligned_le16(PQI_OPERATIONAL_IQ_ELEMENT_LENGTH / 16, 4892 &request.data.create_operational_iq.element_length); 4893 request.data.create_operational_iq.queue_protocol = PQI_PROTOCOL_SOP; 4894 4895 rc = pqi_submit_admin_request_synchronous(ctrl_info, &request, 4896 &response); 4897 if (rc) { 4898 dev_err(&ctrl_info->pci_dev->dev, 4899 "error creating inbound AIO queue\n"); 4900 return rc; 4901 } 4902 4903 queue_group->iq_pi[AIO_PATH] = ctrl_info->iomem_base + 4904 PQI_DEVICE_REGISTERS_OFFSET + 4905 get_unaligned_le64( 4906 &response.data.create_operational_iq.iq_pi_offset); 4907 4908 /* 4909 * Designate the 2nd IQ as the AIO path. By default, all IQs are 4910 * assumed to be for RAID path I/O unless we change the queue's 4911 * property. 4912 */ 4913 memset(&request, 0, sizeof(request)); 4914 request.header.iu_type = PQI_REQUEST_IU_GENERAL_ADMIN; 4915 put_unaligned_le16(PQI_GENERAL_ADMIN_IU_LENGTH, 4916 &request.header.iu_length); 4917 request.function_code = PQI_GENERAL_ADMIN_FUNCTION_CHANGE_IQ_PROPERTY; 4918 put_unaligned_le16(queue_group->iq_id[AIO_PATH], 4919 &request.data.change_operational_iq_properties.queue_id); 4920 put_unaligned_le32(PQI_IQ_PROPERTY_IS_AIO_QUEUE, 4921 &request.data.change_operational_iq_properties.vendor_specific); 4922 4923 rc = pqi_submit_admin_request_synchronous(ctrl_info, &request, 4924 &response); 4925 if (rc) { 4926 dev_err(&ctrl_info->pci_dev->dev, 4927 "error changing queue property\n"); 4928 return rc; 4929 } 4930 4931 /* 4932 * Create OQ (Outbound Queue - device to host queue). 4933 */ 4934 memset(&request, 0, sizeof(request)); 4935 request.header.iu_type = PQI_REQUEST_IU_GENERAL_ADMIN; 4936 put_unaligned_le16(PQI_GENERAL_ADMIN_IU_LENGTH, 4937 &request.header.iu_length); 4938 request.function_code = PQI_GENERAL_ADMIN_FUNCTION_CREATE_OQ; 4939 put_unaligned_le16(queue_group->oq_id, 4940 &request.data.create_operational_oq.queue_id); 4941 put_unaligned_le64((u64)queue_group->oq_element_array_bus_addr, 4942 &request.data.create_operational_oq.element_array_addr); 4943 put_unaligned_le64((u64)queue_group->oq_pi_bus_addr, 4944 &request.data.create_operational_oq.pi_addr); 4945 put_unaligned_le16(ctrl_info->num_elements_per_oq, 4946 &request.data.create_operational_oq.num_elements); 4947 put_unaligned_le16(PQI_OPERATIONAL_OQ_ELEMENT_LENGTH / 16, 4948 &request.data.create_operational_oq.element_length); 4949 request.data.create_operational_oq.queue_protocol = PQI_PROTOCOL_SOP; 4950 put_unaligned_le16(queue_group->int_msg_num, 4951 &request.data.create_operational_oq.int_msg_num); 4952 4953 rc = pqi_submit_admin_request_synchronous(ctrl_info, &request, 4954 &response); 4955 if (rc) { 4956 dev_err(&ctrl_info->pci_dev->dev, 4957 "error creating outbound queue\n"); 4958 return rc; 4959 } 4960 4961 queue_group->oq_ci = ctrl_info->iomem_base + 4962 PQI_DEVICE_REGISTERS_OFFSET + 4963 get_unaligned_le64( 4964 &response.data.create_operational_oq.oq_ci_offset); 4965 4966 return 0; 4967 } 4968 4969 static int pqi_create_queues(struct pqi_ctrl_info *ctrl_info) 4970 { 4971 int rc; 4972 unsigned int i; 4973 4974 rc = pqi_create_event_queue(ctrl_info); 4975 if (rc) { 4976 dev_err(&ctrl_info->pci_dev->dev, 4977 "error creating event queue\n"); 4978 return rc; 4979 } 4980 4981 for (i = 0; i < ctrl_info->num_queue_groups; i++) { 4982 rc = pqi_create_queue_group(ctrl_info, i); 4983 if (rc) { 4984 dev_err(&ctrl_info->pci_dev->dev, 4985 "error creating queue group number %u/%u\n", 4986 i, ctrl_info->num_queue_groups); 4987 return rc; 4988 } 4989 } 4990 4991 return 0; 4992 } 4993 4994 #define PQI_REPORT_EVENT_CONFIG_BUFFER_LENGTH \ 4995 struct_size((struct pqi_event_config *)0, descriptors, PQI_MAX_EVENT_DESCRIPTORS) 4996 4997 static int pqi_configure_events(struct pqi_ctrl_info *ctrl_info, 4998 bool enable_events) 4999 { 5000 int rc; 5001 unsigned int i; 5002 struct pqi_event_config *event_config; 5003 struct pqi_event_descriptor *event_descriptor; 5004 struct pqi_general_management_request request; 5005 5006 event_config = kmalloc(PQI_REPORT_EVENT_CONFIG_BUFFER_LENGTH, 5007 GFP_KERNEL); 5008 if (!event_config) 5009 return -ENOMEM; 5010 5011 memset(&request, 0, sizeof(request)); 5012 5013 request.header.iu_type = PQI_REQUEST_IU_REPORT_VENDOR_EVENT_CONFIG; 5014 put_unaligned_le16(offsetof(struct pqi_general_management_request, 5015 data.report_event_configuration.sg_descriptors[1]) - 5016 PQI_REQUEST_HEADER_LENGTH, &request.header.iu_length); 5017 put_unaligned_le32(PQI_REPORT_EVENT_CONFIG_BUFFER_LENGTH, 5018 &request.data.report_event_configuration.buffer_length); 5019 5020 rc = pqi_map_single(ctrl_info->pci_dev, 5021 request.data.report_event_configuration.sg_descriptors, 5022 event_config, PQI_REPORT_EVENT_CONFIG_BUFFER_LENGTH, 5023 DMA_FROM_DEVICE); 5024 if (rc) 5025 goto out; 5026 5027 rc = pqi_submit_raid_request_synchronous(ctrl_info, &request.header, 0, NULL); 5028 5029 pqi_pci_unmap(ctrl_info->pci_dev, 5030 request.data.report_event_configuration.sg_descriptors, 1, 5031 DMA_FROM_DEVICE); 5032 5033 if (rc) 5034 goto out; 5035 5036 for (i = 0; i < event_config->num_event_descriptors; i++) { 5037 event_descriptor = &event_config->descriptors[i]; 5038 if (enable_events && 5039 pqi_is_supported_event(event_descriptor->event_type)) 5040 put_unaligned_le16(ctrl_info->event_queue.oq_id, 5041 &event_descriptor->oq_id); 5042 else 5043 put_unaligned_le16(0, &event_descriptor->oq_id); 5044 } 5045 5046 memset(&request, 0, sizeof(request)); 5047 5048 request.header.iu_type = PQI_REQUEST_IU_SET_VENDOR_EVENT_CONFIG; 5049 put_unaligned_le16(offsetof(struct pqi_general_management_request, 5050 data.report_event_configuration.sg_descriptors[1]) - 5051 PQI_REQUEST_HEADER_LENGTH, &request.header.iu_length); 5052 put_unaligned_le32(PQI_REPORT_EVENT_CONFIG_BUFFER_LENGTH, 5053 &request.data.report_event_configuration.buffer_length); 5054 5055 rc = pqi_map_single(ctrl_info->pci_dev, 5056 request.data.report_event_configuration.sg_descriptors, 5057 event_config, PQI_REPORT_EVENT_CONFIG_BUFFER_LENGTH, 5058 DMA_TO_DEVICE); 5059 if (rc) 5060 goto out; 5061 5062 rc = pqi_submit_raid_request_synchronous(ctrl_info, &request.header, 0, NULL); 5063 5064 pqi_pci_unmap(ctrl_info->pci_dev, 5065 request.data.report_event_configuration.sg_descriptors, 1, 5066 DMA_TO_DEVICE); 5067 5068 out: 5069 kfree(event_config); 5070 5071 return rc; 5072 } 5073 5074 static inline int pqi_enable_events(struct pqi_ctrl_info *ctrl_info) 5075 { 5076 return pqi_configure_events(ctrl_info, true); 5077 } 5078 5079 static void pqi_free_all_io_requests(struct pqi_ctrl_info *ctrl_info) 5080 { 5081 unsigned int i; 5082 struct device *dev; 5083 size_t sg_chain_buffer_length; 5084 struct pqi_io_request *io_request; 5085 5086 if (!ctrl_info->io_request_pool) 5087 return; 5088 5089 dev = &ctrl_info->pci_dev->dev; 5090 sg_chain_buffer_length = ctrl_info->sg_chain_buffer_length; 5091 io_request = ctrl_info->io_request_pool; 5092 5093 for (i = 0; i < ctrl_info->max_io_slots; i++) { 5094 kfree(io_request->iu); 5095 if (!io_request->sg_chain_buffer) 5096 break; 5097 dma_free_coherent(dev, sg_chain_buffer_length, 5098 io_request->sg_chain_buffer, 5099 io_request->sg_chain_buffer_dma_handle); 5100 io_request++; 5101 } 5102 5103 kfree(ctrl_info->io_request_pool); 5104 ctrl_info->io_request_pool = NULL; 5105 } 5106 5107 static inline int pqi_alloc_error_buffer(struct pqi_ctrl_info *ctrl_info) 5108 { 5109 ctrl_info->error_buffer = dma_alloc_coherent(&ctrl_info->pci_dev->dev, 5110 ctrl_info->error_buffer_length, 5111 &ctrl_info->error_buffer_dma_handle, 5112 GFP_KERNEL); 5113 if (!ctrl_info->error_buffer) 5114 return -ENOMEM; 5115 5116 return 0; 5117 } 5118 5119 static int pqi_alloc_io_resources(struct pqi_ctrl_info *ctrl_info) 5120 { 5121 unsigned int i; 5122 void *sg_chain_buffer; 5123 size_t sg_chain_buffer_length; 5124 dma_addr_t sg_chain_buffer_dma_handle; 5125 struct device *dev; 5126 struct pqi_io_request *io_request; 5127 5128 ctrl_info->io_request_pool = kcalloc(ctrl_info->max_io_slots, 5129 sizeof(ctrl_info->io_request_pool[0]), GFP_KERNEL); 5130 5131 if (!ctrl_info->io_request_pool) { 5132 dev_err(&ctrl_info->pci_dev->dev, 5133 "failed to allocate I/O request pool\n"); 5134 goto error; 5135 } 5136 5137 dev = &ctrl_info->pci_dev->dev; 5138 sg_chain_buffer_length = ctrl_info->sg_chain_buffer_length; 5139 io_request = ctrl_info->io_request_pool; 5140 5141 for (i = 0; i < ctrl_info->max_io_slots; i++) { 5142 io_request->iu = kmalloc(ctrl_info->max_inbound_iu_length, GFP_KERNEL); 5143 5144 if (!io_request->iu) { 5145 dev_err(&ctrl_info->pci_dev->dev, 5146 "failed to allocate IU buffers\n"); 5147 goto error; 5148 } 5149 5150 sg_chain_buffer = dma_alloc_coherent(dev, 5151 sg_chain_buffer_length, &sg_chain_buffer_dma_handle, 5152 GFP_KERNEL); 5153 5154 if (!sg_chain_buffer) { 5155 dev_err(&ctrl_info->pci_dev->dev, 5156 "failed to allocate PQI scatter-gather chain buffers\n"); 5157 goto error; 5158 } 5159 5160 io_request->index = i; 5161 io_request->sg_chain_buffer = sg_chain_buffer; 5162 io_request->sg_chain_buffer_dma_handle = sg_chain_buffer_dma_handle; 5163 io_request++; 5164 } 5165 5166 return 0; 5167 5168 error: 5169 pqi_free_all_io_requests(ctrl_info); 5170 5171 return -ENOMEM; 5172 } 5173 5174 /* 5175 * Calculate required resources that are sized based on max. outstanding 5176 * requests and max. transfer size. 5177 */ 5178 5179 static void pqi_calculate_io_resources(struct pqi_ctrl_info *ctrl_info) 5180 { 5181 u32 max_transfer_size; 5182 u32 max_sg_entries; 5183 5184 ctrl_info->scsi_ml_can_queue = 5185 ctrl_info->max_outstanding_requests - PQI_RESERVED_IO_SLOTS; 5186 ctrl_info->max_io_slots = ctrl_info->max_outstanding_requests; 5187 5188 ctrl_info->error_buffer_length = 5189 ctrl_info->max_io_slots * PQI_ERROR_BUFFER_ELEMENT_LENGTH; 5190 5191 if (reset_devices) 5192 max_transfer_size = min(ctrl_info->max_transfer_size, 5193 PQI_MAX_TRANSFER_SIZE_KDUMP); 5194 else 5195 max_transfer_size = min(ctrl_info->max_transfer_size, 5196 PQI_MAX_TRANSFER_SIZE); 5197 5198 max_sg_entries = max_transfer_size / PAGE_SIZE; 5199 5200 /* +1 to cover when the buffer is not page-aligned. */ 5201 max_sg_entries++; 5202 5203 max_sg_entries = min(ctrl_info->max_sg_entries, max_sg_entries); 5204 5205 max_transfer_size = (max_sg_entries - 1) * PAGE_SIZE; 5206 5207 ctrl_info->sg_chain_buffer_length = 5208 (max_sg_entries * sizeof(struct pqi_sg_descriptor)) + 5209 PQI_EXTRA_SGL_MEMORY; 5210 ctrl_info->sg_tablesize = max_sg_entries; 5211 ctrl_info->max_sectors = max_transfer_size / 512; 5212 } 5213 5214 static void pqi_calculate_queue_resources(struct pqi_ctrl_info *ctrl_info) 5215 { 5216 int num_queue_groups; 5217 u16 num_elements_per_iq; 5218 u16 num_elements_per_oq; 5219 5220 if (reset_devices) { 5221 num_queue_groups = 1; 5222 } else { 5223 int num_cpus; 5224 int max_queue_groups; 5225 5226 max_queue_groups = min(ctrl_info->max_inbound_queues / 2, 5227 ctrl_info->max_outbound_queues - 1); 5228 max_queue_groups = min(max_queue_groups, PQI_MAX_QUEUE_GROUPS); 5229 5230 num_cpus = num_online_cpus(); 5231 num_queue_groups = min(num_cpus, ctrl_info->max_msix_vectors); 5232 num_queue_groups = min(num_queue_groups, max_queue_groups); 5233 } 5234 5235 ctrl_info->num_queue_groups = num_queue_groups; 5236 ctrl_info->max_hw_queue_index = num_queue_groups - 1; 5237 5238 /* 5239 * Make sure that the max. inbound IU length is an even multiple 5240 * of our inbound element length. 5241 */ 5242 ctrl_info->max_inbound_iu_length = 5243 (ctrl_info->max_inbound_iu_length_per_firmware / 5244 PQI_OPERATIONAL_IQ_ELEMENT_LENGTH) * 5245 PQI_OPERATIONAL_IQ_ELEMENT_LENGTH; 5246 5247 num_elements_per_iq = 5248 (ctrl_info->max_inbound_iu_length / 5249 PQI_OPERATIONAL_IQ_ELEMENT_LENGTH); 5250 5251 /* Add one because one element in each queue is unusable. */ 5252 num_elements_per_iq++; 5253 5254 num_elements_per_iq = min(num_elements_per_iq, 5255 ctrl_info->max_elements_per_iq); 5256 5257 num_elements_per_oq = ((num_elements_per_iq - 1) * 2) + 1; 5258 num_elements_per_oq = min(num_elements_per_oq, 5259 ctrl_info->max_elements_per_oq); 5260 5261 ctrl_info->num_elements_per_iq = num_elements_per_iq; 5262 ctrl_info->num_elements_per_oq = num_elements_per_oq; 5263 5264 ctrl_info->max_sg_per_iu = 5265 ((ctrl_info->max_inbound_iu_length - 5266 PQI_OPERATIONAL_IQ_ELEMENT_LENGTH) / 5267 sizeof(struct pqi_sg_descriptor)) + 5268 PQI_MAX_EMBEDDED_SG_DESCRIPTORS; 5269 5270 ctrl_info->max_sg_per_r56_iu = 5271 ((ctrl_info->max_inbound_iu_length - 5272 PQI_OPERATIONAL_IQ_ELEMENT_LENGTH) / 5273 sizeof(struct pqi_sg_descriptor)) + 5274 PQI_MAX_EMBEDDED_R56_SG_DESCRIPTORS; 5275 } 5276 5277 static inline void pqi_set_sg_descriptor(struct pqi_sg_descriptor *sg_descriptor, 5278 struct scatterlist *sg) 5279 { 5280 u64 address = (u64)sg_dma_address(sg); 5281 unsigned int length = sg_dma_len(sg); 5282 5283 put_unaligned_le64(address, &sg_descriptor->address); 5284 put_unaligned_le32(length, &sg_descriptor->length); 5285 put_unaligned_le32(0, &sg_descriptor->flags); 5286 } 5287 5288 static unsigned int pqi_build_sg_list(struct pqi_sg_descriptor *sg_descriptor, 5289 struct scatterlist *sg, int sg_count, struct pqi_io_request *io_request, 5290 int max_sg_per_iu, bool *chained) 5291 { 5292 int i; 5293 unsigned int num_sg_in_iu; 5294 5295 *chained = false; 5296 i = 0; 5297 num_sg_in_iu = 0; 5298 max_sg_per_iu--; /* Subtract 1 to leave room for chain marker. */ 5299 5300 while (1) { 5301 pqi_set_sg_descriptor(sg_descriptor, sg); 5302 if (!*chained) 5303 num_sg_in_iu++; 5304 i++; 5305 if (i == sg_count) 5306 break; 5307 sg_descriptor++; 5308 if (i == max_sg_per_iu) { 5309 put_unaligned_le64((u64)io_request->sg_chain_buffer_dma_handle, 5310 &sg_descriptor->address); 5311 put_unaligned_le32((sg_count - num_sg_in_iu) * sizeof(*sg_descriptor), 5312 &sg_descriptor->length); 5313 put_unaligned_le32(CISS_SG_CHAIN, &sg_descriptor->flags); 5314 *chained = true; 5315 num_sg_in_iu++; 5316 sg_descriptor = io_request->sg_chain_buffer; 5317 } 5318 sg = sg_next(sg); 5319 } 5320 5321 put_unaligned_le32(CISS_SG_LAST, &sg_descriptor->flags); 5322 5323 return num_sg_in_iu; 5324 } 5325 5326 static int pqi_build_raid_sg_list(struct pqi_ctrl_info *ctrl_info, 5327 struct pqi_raid_path_request *request, struct scsi_cmnd *scmd, 5328 struct pqi_io_request *io_request) 5329 { 5330 u16 iu_length; 5331 int sg_count; 5332 bool chained; 5333 unsigned int num_sg_in_iu; 5334 struct scatterlist *sg; 5335 struct pqi_sg_descriptor *sg_descriptor; 5336 5337 sg_count = scsi_dma_map(scmd); 5338 if (sg_count < 0) 5339 return sg_count; 5340 5341 iu_length = offsetof(struct pqi_raid_path_request, sg_descriptors) - 5342 PQI_REQUEST_HEADER_LENGTH; 5343 5344 if (sg_count == 0) 5345 goto out; 5346 5347 sg = scsi_sglist(scmd); 5348 sg_descriptor = request->sg_descriptors; 5349 5350 num_sg_in_iu = pqi_build_sg_list(sg_descriptor, sg, sg_count, io_request, 5351 ctrl_info->max_sg_per_iu, &chained); 5352 5353 request->partial = chained; 5354 iu_length += num_sg_in_iu * sizeof(*sg_descriptor); 5355 5356 out: 5357 put_unaligned_le16(iu_length, &request->header.iu_length); 5358 5359 return 0; 5360 } 5361 5362 static int pqi_build_aio_r1_sg_list(struct pqi_ctrl_info *ctrl_info, 5363 struct pqi_aio_r1_path_request *request, struct scsi_cmnd *scmd, 5364 struct pqi_io_request *io_request) 5365 { 5366 u16 iu_length; 5367 int sg_count; 5368 bool chained; 5369 unsigned int num_sg_in_iu; 5370 struct scatterlist *sg; 5371 struct pqi_sg_descriptor *sg_descriptor; 5372 5373 sg_count = scsi_dma_map(scmd); 5374 if (sg_count < 0) 5375 return sg_count; 5376 5377 iu_length = offsetof(struct pqi_aio_r1_path_request, sg_descriptors) - 5378 PQI_REQUEST_HEADER_LENGTH; 5379 num_sg_in_iu = 0; 5380 5381 if (sg_count == 0) 5382 goto out; 5383 5384 sg = scsi_sglist(scmd); 5385 sg_descriptor = request->sg_descriptors; 5386 5387 num_sg_in_iu = pqi_build_sg_list(sg_descriptor, sg, sg_count, io_request, 5388 ctrl_info->max_sg_per_iu, &chained); 5389 5390 request->partial = chained; 5391 iu_length += num_sg_in_iu * sizeof(*sg_descriptor); 5392 5393 out: 5394 put_unaligned_le16(iu_length, &request->header.iu_length); 5395 request->num_sg_descriptors = num_sg_in_iu; 5396 5397 return 0; 5398 } 5399 5400 static int pqi_build_aio_r56_sg_list(struct pqi_ctrl_info *ctrl_info, 5401 struct pqi_aio_r56_path_request *request, struct scsi_cmnd *scmd, 5402 struct pqi_io_request *io_request) 5403 { 5404 u16 iu_length; 5405 int sg_count; 5406 bool chained; 5407 unsigned int num_sg_in_iu; 5408 struct scatterlist *sg; 5409 struct pqi_sg_descriptor *sg_descriptor; 5410 5411 sg_count = scsi_dma_map(scmd); 5412 if (sg_count < 0) 5413 return sg_count; 5414 5415 iu_length = offsetof(struct pqi_aio_r56_path_request, sg_descriptors) - 5416 PQI_REQUEST_HEADER_LENGTH; 5417 num_sg_in_iu = 0; 5418 5419 if (sg_count != 0) { 5420 sg = scsi_sglist(scmd); 5421 sg_descriptor = request->sg_descriptors; 5422 5423 num_sg_in_iu = pqi_build_sg_list(sg_descriptor, sg, sg_count, io_request, 5424 ctrl_info->max_sg_per_r56_iu, &chained); 5425 5426 request->partial = chained; 5427 iu_length += num_sg_in_iu * sizeof(*sg_descriptor); 5428 } 5429 5430 put_unaligned_le16(iu_length, &request->header.iu_length); 5431 request->num_sg_descriptors = num_sg_in_iu; 5432 5433 return 0; 5434 } 5435 5436 static int pqi_build_aio_sg_list(struct pqi_ctrl_info *ctrl_info, 5437 struct pqi_aio_path_request *request, struct scsi_cmnd *scmd, 5438 struct pqi_io_request *io_request) 5439 { 5440 u16 iu_length; 5441 int sg_count; 5442 bool chained; 5443 unsigned int num_sg_in_iu; 5444 struct scatterlist *sg; 5445 struct pqi_sg_descriptor *sg_descriptor; 5446 5447 sg_count = scsi_dma_map(scmd); 5448 if (sg_count < 0) 5449 return sg_count; 5450 5451 iu_length = offsetof(struct pqi_aio_path_request, sg_descriptors) - 5452 PQI_REQUEST_HEADER_LENGTH; 5453 num_sg_in_iu = 0; 5454 5455 if (sg_count == 0) 5456 goto out; 5457 5458 sg = scsi_sglist(scmd); 5459 sg_descriptor = request->sg_descriptors; 5460 5461 num_sg_in_iu = pqi_build_sg_list(sg_descriptor, sg, sg_count, io_request, 5462 ctrl_info->max_sg_per_iu, &chained); 5463 5464 request->partial = chained; 5465 iu_length += num_sg_in_iu * sizeof(*sg_descriptor); 5466 5467 out: 5468 put_unaligned_le16(iu_length, &request->header.iu_length); 5469 request->num_sg_descriptors = num_sg_in_iu; 5470 5471 return 0; 5472 } 5473 5474 static void pqi_raid_io_complete(struct pqi_io_request *io_request, 5475 void *context) 5476 { 5477 struct scsi_cmnd *scmd; 5478 5479 scmd = io_request->scmd; 5480 pqi_free_io_request(io_request); 5481 scsi_dma_unmap(scmd); 5482 pqi_scsi_done(scmd); 5483 } 5484 5485 static int pqi_raid_submit_scsi_cmd_with_io_request( 5486 struct pqi_ctrl_info *ctrl_info, struct pqi_io_request *io_request, 5487 struct pqi_scsi_dev *device, struct scsi_cmnd *scmd, 5488 struct pqi_queue_group *queue_group) 5489 { 5490 int rc; 5491 size_t cdb_length; 5492 struct pqi_raid_path_request *request; 5493 5494 io_request->io_complete_callback = pqi_raid_io_complete; 5495 io_request->scmd = scmd; 5496 5497 request = io_request->iu; 5498 memset(request, 0, offsetof(struct pqi_raid_path_request, sg_descriptors)); 5499 5500 request->header.iu_type = PQI_REQUEST_IU_RAID_PATH_IO; 5501 put_unaligned_le32(scsi_bufflen(scmd), &request->buffer_length); 5502 request->task_attribute = SOP_TASK_ATTRIBUTE_SIMPLE; 5503 put_unaligned_le16(io_request->index, &request->request_id); 5504 request->error_index = request->request_id; 5505 memcpy(request->lun_number, device->scsi3addr, sizeof(request->lun_number)); 5506 request->ml_device_lun_number = (u8)scmd->device->lun; 5507 5508 cdb_length = min_t(size_t, scmd->cmd_len, sizeof(request->cdb)); 5509 memcpy(request->cdb, scmd->cmnd, cdb_length); 5510 5511 switch (cdb_length) { 5512 case 6: 5513 case 10: 5514 case 12: 5515 case 16: 5516 request->additional_cdb_bytes_usage = SOP_ADDITIONAL_CDB_BYTES_0; 5517 break; 5518 case 20: 5519 request->additional_cdb_bytes_usage = SOP_ADDITIONAL_CDB_BYTES_4; 5520 break; 5521 case 24: 5522 request->additional_cdb_bytes_usage = SOP_ADDITIONAL_CDB_BYTES_8; 5523 break; 5524 case 28: 5525 request->additional_cdb_bytes_usage = SOP_ADDITIONAL_CDB_BYTES_12; 5526 break; 5527 case 32: 5528 default: 5529 request->additional_cdb_bytes_usage = SOP_ADDITIONAL_CDB_BYTES_16; 5530 break; 5531 } 5532 5533 switch (scmd->sc_data_direction) { 5534 case DMA_FROM_DEVICE: 5535 request->data_direction = SOP_READ_FLAG; 5536 break; 5537 case DMA_TO_DEVICE: 5538 request->data_direction = SOP_WRITE_FLAG; 5539 break; 5540 case DMA_NONE: 5541 request->data_direction = SOP_NO_DIRECTION_FLAG; 5542 break; 5543 case DMA_BIDIRECTIONAL: 5544 request->data_direction = SOP_BIDIRECTIONAL; 5545 break; 5546 default: 5547 dev_err(&ctrl_info->pci_dev->dev, 5548 "unknown data direction: %d\n", 5549 scmd->sc_data_direction); 5550 break; 5551 } 5552 5553 rc = pqi_build_raid_sg_list(ctrl_info, request, scmd, io_request); 5554 if (rc) { 5555 pqi_free_io_request(io_request); 5556 return SCSI_MLQUEUE_HOST_BUSY; 5557 } 5558 5559 pqi_start_io(ctrl_info, queue_group, RAID_PATH, io_request); 5560 5561 return 0; 5562 } 5563 5564 static inline int pqi_raid_submit_scsi_cmd(struct pqi_ctrl_info *ctrl_info, 5565 struct pqi_scsi_dev *device, struct scsi_cmnd *scmd, 5566 struct pqi_queue_group *queue_group) 5567 { 5568 struct pqi_io_request *io_request; 5569 5570 io_request = pqi_alloc_io_request(ctrl_info); 5571 5572 return pqi_raid_submit_scsi_cmd_with_io_request(ctrl_info, io_request, 5573 device, scmd, queue_group); 5574 } 5575 5576 static bool pqi_raid_bypass_retry_needed(struct pqi_io_request *io_request) 5577 { 5578 struct scsi_cmnd *scmd; 5579 struct pqi_scsi_dev *device; 5580 struct pqi_ctrl_info *ctrl_info; 5581 5582 if (!io_request->raid_bypass) 5583 return false; 5584 5585 scmd = io_request->scmd; 5586 if ((scmd->result & 0xff) == SAM_STAT_GOOD) 5587 return false; 5588 if (host_byte(scmd->result) == DID_NO_CONNECT) 5589 return false; 5590 5591 device = scmd->device->hostdata; 5592 if (pqi_device_offline(device) || pqi_device_in_remove(device)) 5593 return false; 5594 5595 ctrl_info = shost_to_hba(scmd->device->host); 5596 if (pqi_ctrl_offline(ctrl_info)) 5597 return false; 5598 5599 return true; 5600 } 5601 5602 static void pqi_aio_io_complete(struct pqi_io_request *io_request, 5603 void *context) 5604 { 5605 struct scsi_cmnd *scmd; 5606 5607 scmd = io_request->scmd; 5608 scsi_dma_unmap(scmd); 5609 if (io_request->status == -EAGAIN || pqi_raid_bypass_retry_needed(io_request)) { 5610 set_host_byte(scmd, DID_IMM_RETRY); 5611 pqi_cmd_priv(scmd)->this_residual++; 5612 } 5613 5614 pqi_free_io_request(io_request); 5615 pqi_scsi_done(scmd); 5616 } 5617 5618 static inline bool pqi_is_io_high_priority(struct pqi_ctrl_info *ctrl_info, 5619 struct pqi_scsi_dev *device, struct scsi_cmnd *scmd) 5620 { 5621 bool io_high_prio; 5622 int priority_class; 5623 5624 io_high_prio = false; 5625 5626 if (device->ncq_prio_enable) { 5627 priority_class = 5628 IOPRIO_PRIO_CLASS(req_get_ioprio(scsi_cmd_to_rq(scmd))); 5629 if (priority_class == IOPRIO_CLASS_RT) { 5630 /* Set NCQ priority for read/write commands. */ 5631 switch (scmd->cmnd[0]) { 5632 case WRITE_16: 5633 case READ_16: 5634 case WRITE_12: 5635 case READ_12: 5636 case WRITE_10: 5637 case READ_10: 5638 case WRITE_6: 5639 case READ_6: 5640 io_high_prio = true; 5641 break; 5642 } 5643 } 5644 } 5645 5646 return io_high_prio; 5647 } 5648 5649 static inline int pqi_aio_submit_scsi_cmd(struct pqi_ctrl_info *ctrl_info, 5650 struct pqi_scsi_dev *device, struct scsi_cmnd *scmd, 5651 struct pqi_queue_group *queue_group) 5652 { 5653 bool io_high_prio; 5654 5655 io_high_prio = pqi_is_io_high_priority(ctrl_info, device, scmd); 5656 5657 return pqi_aio_submit_io(ctrl_info, scmd, device->aio_handle, 5658 scmd->cmnd, scmd->cmd_len, queue_group, NULL, 5659 false, io_high_prio); 5660 } 5661 5662 static int pqi_aio_submit_io(struct pqi_ctrl_info *ctrl_info, 5663 struct scsi_cmnd *scmd, u32 aio_handle, u8 *cdb, 5664 unsigned int cdb_length, struct pqi_queue_group *queue_group, 5665 struct pqi_encryption_info *encryption_info, bool raid_bypass, 5666 bool io_high_prio) 5667 { 5668 int rc; 5669 struct pqi_io_request *io_request; 5670 struct pqi_aio_path_request *request; 5671 struct pqi_scsi_dev *device; 5672 5673 device = scmd->device->hostdata; 5674 io_request = pqi_alloc_io_request(ctrl_info); 5675 io_request->io_complete_callback = pqi_aio_io_complete; 5676 io_request->scmd = scmd; 5677 io_request->raid_bypass = raid_bypass; 5678 5679 request = io_request->iu; 5680 memset(request, 0, offsetof(struct pqi_aio_path_request, sg_descriptors)); 5681 5682 request->header.iu_type = PQI_REQUEST_IU_AIO_PATH_IO; 5683 put_unaligned_le32(aio_handle, &request->nexus_id); 5684 put_unaligned_le32(scsi_bufflen(scmd), &request->buffer_length); 5685 request->task_attribute = SOP_TASK_ATTRIBUTE_SIMPLE; 5686 request->command_priority = io_high_prio; 5687 put_unaligned_le16(io_request->index, &request->request_id); 5688 request->error_index = request->request_id; 5689 if (!pqi_is_logical_device(device) && ctrl_info->multi_lun_device_supported) 5690 put_unaligned_le64(((scmd->device->lun) << 8), &request->lun_number); 5691 if (cdb_length > sizeof(request->cdb)) 5692 cdb_length = sizeof(request->cdb); 5693 request->cdb_length = cdb_length; 5694 memcpy(request->cdb, cdb, cdb_length); 5695 5696 switch (scmd->sc_data_direction) { 5697 case DMA_TO_DEVICE: 5698 request->data_direction = SOP_READ_FLAG; 5699 break; 5700 case DMA_FROM_DEVICE: 5701 request->data_direction = SOP_WRITE_FLAG; 5702 break; 5703 case DMA_NONE: 5704 request->data_direction = SOP_NO_DIRECTION_FLAG; 5705 break; 5706 case DMA_BIDIRECTIONAL: 5707 request->data_direction = SOP_BIDIRECTIONAL; 5708 break; 5709 default: 5710 dev_err(&ctrl_info->pci_dev->dev, 5711 "unknown data direction: %d\n", 5712 scmd->sc_data_direction); 5713 break; 5714 } 5715 5716 if (encryption_info) { 5717 request->encryption_enable = true; 5718 put_unaligned_le16(encryption_info->data_encryption_key_index, 5719 &request->data_encryption_key_index); 5720 put_unaligned_le32(encryption_info->encrypt_tweak_lower, 5721 &request->encrypt_tweak_lower); 5722 put_unaligned_le32(encryption_info->encrypt_tweak_upper, 5723 &request->encrypt_tweak_upper); 5724 } 5725 5726 rc = pqi_build_aio_sg_list(ctrl_info, request, scmd, io_request); 5727 if (rc) { 5728 pqi_free_io_request(io_request); 5729 return SCSI_MLQUEUE_HOST_BUSY; 5730 } 5731 5732 pqi_start_io(ctrl_info, queue_group, AIO_PATH, io_request); 5733 5734 return 0; 5735 } 5736 5737 static int pqi_aio_submit_r1_write_io(struct pqi_ctrl_info *ctrl_info, 5738 struct scsi_cmnd *scmd, struct pqi_queue_group *queue_group, 5739 struct pqi_encryption_info *encryption_info, struct pqi_scsi_dev *device, 5740 struct pqi_scsi_dev_raid_map_data *rmd) 5741 { 5742 int rc; 5743 struct pqi_io_request *io_request; 5744 struct pqi_aio_r1_path_request *r1_request; 5745 5746 io_request = pqi_alloc_io_request(ctrl_info); 5747 io_request->io_complete_callback = pqi_aio_io_complete; 5748 io_request->scmd = scmd; 5749 io_request->raid_bypass = true; 5750 5751 r1_request = io_request->iu; 5752 memset(r1_request, 0, offsetof(struct pqi_aio_r1_path_request, sg_descriptors)); 5753 5754 r1_request->header.iu_type = PQI_REQUEST_IU_AIO_PATH_RAID1_IO; 5755 put_unaligned_le16(*(u16 *)device->scsi3addr & 0x3fff, &r1_request->volume_id); 5756 r1_request->num_drives = rmd->num_it_nexus_entries; 5757 put_unaligned_le32(rmd->it_nexus[0], &r1_request->it_nexus_1); 5758 put_unaligned_le32(rmd->it_nexus[1], &r1_request->it_nexus_2); 5759 if (rmd->num_it_nexus_entries == 3) 5760 put_unaligned_le32(rmd->it_nexus[2], &r1_request->it_nexus_3); 5761 5762 put_unaligned_le32(scsi_bufflen(scmd), &r1_request->data_length); 5763 r1_request->task_attribute = SOP_TASK_ATTRIBUTE_SIMPLE; 5764 put_unaligned_le16(io_request->index, &r1_request->request_id); 5765 r1_request->error_index = r1_request->request_id; 5766 if (rmd->cdb_length > sizeof(r1_request->cdb)) 5767 rmd->cdb_length = sizeof(r1_request->cdb); 5768 r1_request->cdb_length = rmd->cdb_length; 5769 memcpy(r1_request->cdb, rmd->cdb, rmd->cdb_length); 5770 5771 /* The direction is always write. */ 5772 r1_request->data_direction = SOP_READ_FLAG; 5773 5774 if (encryption_info) { 5775 r1_request->encryption_enable = true; 5776 put_unaligned_le16(encryption_info->data_encryption_key_index, 5777 &r1_request->data_encryption_key_index); 5778 put_unaligned_le32(encryption_info->encrypt_tweak_lower, 5779 &r1_request->encrypt_tweak_lower); 5780 put_unaligned_le32(encryption_info->encrypt_tweak_upper, 5781 &r1_request->encrypt_tweak_upper); 5782 } 5783 5784 rc = pqi_build_aio_r1_sg_list(ctrl_info, r1_request, scmd, io_request); 5785 if (rc) { 5786 pqi_free_io_request(io_request); 5787 return SCSI_MLQUEUE_HOST_BUSY; 5788 } 5789 5790 pqi_start_io(ctrl_info, queue_group, AIO_PATH, io_request); 5791 5792 return 0; 5793 } 5794 5795 static int pqi_aio_submit_r56_write_io(struct pqi_ctrl_info *ctrl_info, 5796 struct scsi_cmnd *scmd, struct pqi_queue_group *queue_group, 5797 struct pqi_encryption_info *encryption_info, struct pqi_scsi_dev *device, 5798 struct pqi_scsi_dev_raid_map_data *rmd) 5799 { 5800 int rc; 5801 struct pqi_io_request *io_request; 5802 struct pqi_aio_r56_path_request *r56_request; 5803 5804 io_request = pqi_alloc_io_request(ctrl_info); 5805 io_request->io_complete_callback = pqi_aio_io_complete; 5806 io_request->scmd = scmd; 5807 io_request->raid_bypass = true; 5808 5809 r56_request = io_request->iu; 5810 memset(r56_request, 0, offsetof(struct pqi_aio_r56_path_request, sg_descriptors)); 5811 5812 if (device->raid_level == SA_RAID_5 || device->raid_level == SA_RAID_51) 5813 r56_request->header.iu_type = PQI_REQUEST_IU_AIO_PATH_RAID5_IO; 5814 else 5815 r56_request->header.iu_type = PQI_REQUEST_IU_AIO_PATH_RAID6_IO; 5816 5817 put_unaligned_le16(*(u16 *)device->scsi3addr & 0x3fff, &r56_request->volume_id); 5818 put_unaligned_le32(rmd->aio_handle, &r56_request->data_it_nexus); 5819 put_unaligned_le32(rmd->p_parity_it_nexus, &r56_request->p_parity_it_nexus); 5820 if (rmd->raid_level == SA_RAID_6) { 5821 put_unaligned_le32(rmd->q_parity_it_nexus, &r56_request->q_parity_it_nexus); 5822 r56_request->xor_multiplier = rmd->xor_mult; 5823 } 5824 put_unaligned_le32(scsi_bufflen(scmd), &r56_request->data_length); 5825 r56_request->task_attribute = SOP_TASK_ATTRIBUTE_SIMPLE; 5826 put_unaligned_le64(rmd->row, &r56_request->row); 5827 5828 put_unaligned_le16(io_request->index, &r56_request->request_id); 5829 r56_request->error_index = r56_request->request_id; 5830 5831 if (rmd->cdb_length > sizeof(r56_request->cdb)) 5832 rmd->cdb_length = sizeof(r56_request->cdb); 5833 r56_request->cdb_length = rmd->cdb_length; 5834 memcpy(r56_request->cdb, rmd->cdb, rmd->cdb_length); 5835 5836 /* The direction is always write. */ 5837 r56_request->data_direction = SOP_READ_FLAG; 5838 5839 if (encryption_info) { 5840 r56_request->encryption_enable = true; 5841 put_unaligned_le16(encryption_info->data_encryption_key_index, 5842 &r56_request->data_encryption_key_index); 5843 put_unaligned_le32(encryption_info->encrypt_tweak_lower, 5844 &r56_request->encrypt_tweak_lower); 5845 put_unaligned_le32(encryption_info->encrypt_tweak_upper, 5846 &r56_request->encrypt_tweak_upper); 5847 } 5848 5849 rc = pqi_build_aio_r56_sg_list(ctrl_info, r56_request, scmd, io_request); 5850 if (rc) { 5851 pqi_free_io_request(io_request); 5852 return SCSI_MLQUEUE_HOST_BUSY; 5853 } 5854 5855 pqi_start_io(ctrl_info, queue_group, AIO_PATH, io_request); 5856 5857 return 0; 5858 } 5859 5860 static inline u16 pqi_get_hw_queue(struct pqi_ctrl_info *ctrl_info, 5861 struct scsi_cmnd *scmd) 5862 { 5863 u16 hw_queue; 5864 5865 hw_queue = blk_mq_unique_tag_to_hwq(blk_mq_unique_tag(scsi_cmd_to_rq(scmd))); 5866 if (hw_queue > ctrl_info->max_hw_queue_index) 5867 hw_queue = 0; 5868 5869 return hw_queue; 5870 } 5871 5872 static inline bool pqi_is_bypass_eligible_request(struct scsi_cmnd *scmd) 5873 { 5874 if (blk_rq_is_passthrough(scsi_cmd_to_rq(scmd))) 5875 return false; 5876 5877 return pqi_cmd_priv(scmd)->this_residual == 0; 5878 } 5879 5880 /* 5881 * This function gets called just before we hand the completed SCSI request 5882 * back to the SML. 5883 */ 5884 5885 void pqi_prep_for_scsi_done(struct scsi_cmnd *scmd) 5886 { 5887 struct pqi_scsi_dev *device; 5888 5889 if (!scmd->device) { 5890 set_host_byte(scmd, DID_NO_CONNECT); 5891 return; 5892 } 5893 5894 device = scmd->device->hostdata; 5895 if (!device) { 5896 set_host_byte(scmd, DID_NO_CONNECT); 5897 return; 5898 } 5899 5900 atomic_dec(&device->scsi_cmds_outstanding[scmd->device->lun]); 5901 } 5902 5903 static bool pqi_is_parity_write_stream(struct pqi_ctrl_info *ctrl_info, 5904 struct scsi_cmnd *scmd) 5905 { 5906 u32 oldest_jiffies; 5907 u8 lru_index; 5908 int i; 5909 int rc; 5910 struct pqi_scsi_dev *device; 5911 struct pqi_stream_data *pqi_stream_data; 5912 struct pqi_scsi_dev_raid_map_data rmd; 5913 5914 if (!ctrl_info->enable_stream_detection) 5915 return false; 5916 5917 rc = pqi_get_aio_lba_and_block_count(scmd, &rmd); 5918 if (rc) 5919 return false; 5920 5921 /* Check writes only. */ 5922 if (!rmd.is_write) 5923 return false; 5924 5925 device = scmd->device->hostdata; 5926 5927 /* Check for RAID 5/6 streams. */ 5928 if (device->raid_level != SA_RAID_5 && device->raid_level != SA_RAID_6) 5929 return false; 5930 5931 /* 5932 * If controller does not support AIO RAID{5,6} writes, need to send 5933 * requests down non-AIO path. 5934 */ 5935 if ((device->raid_level == SA_RAID_5 && !ctrl_info->enable_r5_writes) || 5936 (device->raid_level == SA_RAID_6 && !ctrl_info->enable_r6_writes)) 5937 return true; 5938 5939 lru_index = 0; 5940 oldest_jiffies = INT_MAX; 5941 for (i = 0; i < NUM_STREAMS_PER_LUN; i++) { 5942 pqi_stream_data = &device->stream_data[i]; 5943 /* 5944 * Check for adjacent request or request is within 5945 * the previous request. 5946 */ 5947 if ((pqi_stream_data->next_lba && 5948 rmd.first_block >= pqi_stream_data->next_lba) && 5949 rmd.first_block <= pqi_stream_data->next_lba + 5950 rmd.block_cnt) { 5951 pqi_stream_data->next_lba = rmd.first_block + 5952 rmd.block_cnt; 5953 pqi_stream_data->last_accessed = jiffies; 5954 return true; 5955 } 5956 5957 /* unused entry */ 5958 if (pqi_stream_data->last_accessed == 0) { 5959 lru_index = i; 5960 break; 5961 } 5962 5963 /* Find entry with oldest last accessed time. */ 5964 if (pqi_stream_data->last_accessed <= oldest_jiffies) { 5965 oldest_jiffies = pqi_stream_data->last_accessed; 5966 lru_index = i; 5967 } 5968 } 5969 5970 /* Set LRU entry. */ 5971 pqi_stream_data = &device->stream_data[lru_index]; 5972 pqi_stream_data->last_accessed = jiffies; 5973 pqi_stream_data->next_lba = rmd.first_block + rmd.block_cnt; 5974 5975 return false; 5976 } 5977 5978 static int pqi_scsi_queue_command(struct Scsi_Host *shost, struct scsi_cmnd *scmd) 5979 { 5980 int rc; 5981 struct pqi_ctrl_info *ctrl_info; 5982 struct pqi_scsi_dev *device; 5983 u16 hw_queue; 5984 struct pqi_queue_group *queue_group; 5985 bool raid_bypassed; 5986 5987 device = scmd->device->hostdata; 5988 5989 if (!device) { 5990 set_host_byte(scmd, DID_NO_CONNECT); 5991 pqi_scsi_done(scmd); 5992 return 0; 5993 } 5994 5995 atomic_inc(&device->scsi_cmds_outstanding[scmd->device->lun]); 5996 5997 ctrl_info = shost_to_hba(shost); 5998 5999 if (pqi_ctrl_offline(ctrl_info) || pqi_device_in_remove(device)) { 6000 set_host_byte(scmd, DID_NO_CONNECT); 6001 pqi_scsi_done(scmd); 6002 return 0; 6003 } 6004 6005 if (pqi_ctrl_blocked(ctrl_info)) { 6006 rc = SCSI_MLQUEUE_HOST_BUSY; 6007 goto out; 6008 } 6009 6010 /* 6011 * This is necessary because the SML doesn't zero out this field during 6012 * error recovery. 6013 */ 6014 scmd->result = 0; 6015 6016 hw_queue = pqi_get_hw_queue(ctrl_info, scmd); 6017 queue_group = &ctrl_info->queue_groups[hw_queue]; 6018 6019 if (pqi_is_logical_device(device)) { 6020 raid_bypassed = false; 6021 if (device->raid_bypass_enabled && 6022 pqi_is_bypass_eligible_request(scmd) && 6023 !pqi_is_parity_write_stream(ctrl_info, scmd)) { 6024 rc = pqi_raid_bypass_submit_scsi_cmd(ctrl_info, device, scmd, queue_group); 6025 if (rc == 0 || rc == SCSI_MLQUEUE_HOST_BUSY) { 6026 raid_bypassed = true; 6027 atomic_inc(&device->raid_bypass_cnt); 6028 } 6029 } 6030 if (!raid_bypassed) 6031 rc = pqi_raid_submit_scsi_cmd(ctrl_info, device, scmd, queue_group); 6032 } else { 6033 if (device->aio_enabled) 6034 rc = pqi_aio_submit_scsi_cmd(ctrl_info, device, scmd, queue_group); 6035 else 6036 rc = pqi_raid_submit_scsi_cmd(ctrl_info, device, scmd, queue_group); 6037 } 6038 6039 out: 6040 if (rc) 6041 atomic_dec(&device->scsi_cmds_outstanding[scmd->device->lun]); 6042 6043 return rc; 6044 } 6045 6046 static unsigned int pqi_queued_io_count(struct pqi_ctrl_info *ctrl_info) 6047 { 6048 unsigned int i; 6049 unsigned int path; 6050 unsigned long flags; 6051 unsigned int queued_io_count; 6052 struct pqi_queue_group *queue_group; 6053 struct pqi_io_request *io_request; 6054 6055 queued_io_count = 0; 6056 6057 for (i = 0; i < ctrl_info->num_queue_groups; i++) { 6058 queue_group = &ctrl_info->queue_groups[i]; 6059 for (path = 0; path < 2; path++) { 6060 spin_lock_irqsave(&queue_group->submit_lock[path], flags); 6061 list_for_each_entry(io_request, &queue_group->request_list[path], request_list_entry) 6062 queued_io_count++; 6063 spin_unlock_irqrestore(&queue_group->submit_lock[path], flags); 6064 } 6065 } 6066 6067 return queued_io_count; 6068 } 6069 6070 static unsigned int pqi_nonempty_inbound_queue_count(struct pqi_ctrl_info *ctrl_info) 6071 { 6072 unsigned int i; 6073 unsigned int path; 6074 unsigned int nonempty_inbound_queue_count; 6075 struct pqi_queue_group *queue_group; 6076 pqi_index_t iq_pi; 6077 pqi_index_t iq_ci; 6078 6079 nonempty_inbound_queue_count = 0; 6080 6081 for (i = 0; i < ctrl_info->num_queue_groups; i++) { 6082 queue_group = &ctrl_info->queue_groups[i]; 6083 for (path = 0; path < 2; path++) { 6084 iq_pi = queue_group->iq_pi_copy[path]; 6085 iq_ci = readl(queue_group->iq_ci[path]); 6086 if (iq_ci != iq_pi) 6087 nonempty_inbound_queue_count++; 6088 } 6089 } 6090 6091 return nonempty_inbound_queue_count; 6092 } 6093 6094 #define PQI_INBOUND_QUEUES_NONEMPTY_WARNING_TIMEOUT_SECS 10 6095 6096 static int pqi_wait_until_inbound_queues_empty(struct pqi_ctrl_info *ctrl_info) 6097 { 6098 unsigned long start_jiffies; 6099 unsigned long warning_timeout; 6100 unsigned int queued_io_count; 6101 unsigned int nonempty_inbound_queue_count; 6102 bool displayed_warning; 6103 6104 displayed_warning = false; 6105 start_jiffies = jiffies; 6106 warning_timeout = (PQI_INBOUND_QUEUES_NONEMPTY_WARNING_TIMEOUT_SECS * HZ) + start_jiffies; 6107 6108 while (1) { 6109 queued_io_count = pqi_queued_io_count(ctrl_info); 6110 nonempty_inbound_queue_count = pqi_nonempty_inbound_queue_count(ctrl_info); 6111 if (queued_io_count == 0 && nonempty_inbound_queue_count == 0) 6112 break; 6113 pqi_check_ctrl_health(ctrl_info); 6114 if (pqi_ctrl_offline(ctrl_info)) 6115 return -ENXIO; 6116 if (time_after(jiffies, warning_timeout)) { 6117 dev_warn(&ctrl_info->pci_dev->dev, 6118 "waiting %u seconds for queued I/O to drain (queued I/O count: %u; non-empty inbound queue count: %u)\n", 6119 jiffies_to_msecs(jiffies - start_jiffies) / 1000, queued_io_count, nonempty_inbound_queue_count); 6120 displayed_warning = true; 6121 warning_timeout = (PQI_INBOUND_QUEUES_NONEMPTY_WARNING_TIMEOUT_SECS * HZ) + jiffies; 6122 } 6123 usleep_range(1000, 2000); 6124 } 6125 6126 if (displayed_warning) 6127 dev_warn(&ctrl_info->pci_dev->dev, 6128 "queued I/O drained after waiting for %u seconds\n", 6129 jiffies_to_msecs(jiffies - start_jiffies) / 1000); 6130 6131 return 0; 6132 } 6133 6134 static void pqi_fail_io_queued_for_device(struct pqi_ctrl_info *ctrl_info, 6135 struct pqi_scsi_dev *device) 6136 { 6137 unsigned int i; 6138 unsigned int path; 6139 struct pqi_queue_group *queue_group; 6140 unsigned long flags; 6141 struct pqi_io_request *io_request; 6142 struct pqi_io_request *next; 6143 struct scsi_cmnd *scmd; 6144 struct pqi_scsi_dev *scsi_device; 6145 6146 for (i = 0; i < ctrl_info->num_queue_groups; i++) { 6147 queue_group = &ctrl_info->queue_groups[i]; 6148 6149 for (path = 0; path < 2; path++) { 6150 spin_lock_irqsave( 6151 &queue_group->submit_lock[path], flags); 6152 6153 list_for_each_entry_safe(io_request, next, 6154 &queue_group->request_list[path], 6155 request_list_entry) { 6156 6157 scmd = io_request->scmd; 6158 if (!scmd) 6159 continue; 6160 6161 scsi_device = scmd->device->hostdata; 6162 if (scsi_device != device) 6163 continue; 6164 6165 list_del(&io_request->request_list_entry); 6166 set_host_byte(scmd, DID_RESET); 6167 pqi_free_io_request(io_request); 6168 scsi_dma_unmap(scmd); 6169 pqi_scsi_done(scmd); 6170 } 6171 6172 spin_unlock_irqrestore( 6173 &queue_group->submit_lock[path], flags); 6174 } 6175 } 6176 } 6177 6178 #define PQI_PENDING_IO_WARNING_TIMEOUT_SECS 10 6179 6180 static int pqi_device_wait_for_pending_io(struct pqi_ctrl_info *ctrl_info, 6181 struct pqi_scsi_dev *device, u8 lun, unsigned long timeout_msecs) 6182 { 6183 int cmds_outstanding; 6184 unsigned long start_jiffies; 6185 unsigned long warning_timeout; 6186 unsigned long msecs_waiting; 6187 6188 start_jiffies = jiffies; 6189 warning_timeout = (PQI_PENDING_IO_WARNING_TIMEOUT_SECS * HZ) + start_jiffies; 6190 6191 while ((cmds_outstanding = atomic_read(&device->scsi_cmds_outstanding[lun])) > 0) { 6192 if (ctrl_info->ctrl_removal_state != PQI_CTRL_GRACEFUL_REMOVAL) { 6193 pqi_check_ctrl_health(ctrl_info); 6194 if (pqi_ctrl_offline(ctrl_info)) 6195 return -ENXIO; 6196 } 6197 msecs_waiting = jiffies_to_msecs(jiffies - start_jiffies); 6198 if (msecs_waiting >= timeout_msecs) { 6199 dev_err(&ctrl_info->pci_dev->dev, 6200 "scsi %d:%d:%d:%d: timed out after %lu seconds waiting for %d outstanding command(s)\n", 6201 ctrl_info->scsi_host->host_no, device->bus, device->target, 6202 lun, msecs_waiting / 1000, cmds_outstanding); 6203 return -ETIMEDOUT; 6204 } 6205 if (time_after(jiffies, warning_timeout)) { 6206 dev_warn(&ctrl_info->pci_dev->dev, 6207 "scsi %d:%d:%d:%d: waiting %lu seconds for %d outstanding command(s)\n", 6208 ctrl_info->scsi_host->host_no, device->bus, device->target, 6209 lun, msecs_waiting / 1000, cmds_outstanding); 6210 warning_timeout = (PQI_PENDING_IO_WARNING_TIMEOUT_SECS * HZ) + jiffies; 6211 } 6212 usleep_range(1000, 2000); 6213 } 6214 6215 return 0; 6216 } 6217 6218 static void pqi_lun_reset_complete(struct pqi_io_request *io_request, 6219 void *context) 6220 { 6221 struct completion *waiting = context; 6222 6223 complete(waiting); 6224 } 6225 6226 #define PQI_LUN_RESET_POLL_COMPLETION_SECS 10 6227 6228 static int pqi_wait_for_lun_reset_completion(struct pqi_ctrl_info *ctrl_info, 6229 struct pqi_scsi_dev *device, u8 lun, struct completion *wait) 6230 { 6231 int rc; 6232 unsigned int wait_secs; 6233 int cmds_outstanding; 6234 6235 wait_secs = 0; 6236 6237 while (1) { 6238 if (wait_for_completion_io_timeout(wait, 6239 PQI_LUN_RESET_POLL_COMPLETION_SECS * HZ)) { 6240 rc = 0; 6241 break; 6242 } 6243 6244 pqi_check_ctrl_health(ctrl_info); 6245 if (pqi_ctrl_offline(ctrl_info)) { 6246 rc = -ENXIO; 6247 break; 6248 } 6249 6250 wait_secs += PQI_LUN_RESET_POLL_COMPLETION_SECS; 6251 cmds_outstanding = atomic_read(&device->scsi_cmds_outstanding[lun]); 6252 dev_warn(&ctrl_info->pci_dev->dev, 6253 "scsi %d:%d:%d:%d: waiting %u seconds for LUN reset to complete (%d command(s) outstanding)\n", 6254 ctrl_info->scsi_host->host_no, device->bus, device->target, lun, wait_secs, cmds_outstanding); 6255 } 6256 6257 return rc; 6258 } 6259 6260 #define PQI_LUN_RESET_FIRMWARE_TIMEOUT_SECS 30 6261 6262 static int pqi_lun_reset(struct pqi_ctrl_info *ctrl_info, struct scsi_cmnd *scmd) 6263 { 6264 int rc; 6265 struct pqi_io_request *io_request; 6266 DECLARE_COMPLETION_ONSTACK(wait); 6267 struct pqi_task_management_request *request; 6268 struct pqi_scsi_dev *device; 6269 6270 device = scmd->device->hostdata; 6271 io_request = pqi_alloc_io_request(ctrl_info); 6272 io_request->io_complete_callback = pqi_lun_reset_complete; 6273 io_request->context = &wait; 6274 6275 request = io_request->iu; 6276 memset(request, 0, sizeof(*request)); 6277 6278 request->header.iu_type = PQI_REQUEST_IU_TASK_MANAGEMENT; 6279 put_unaligned_le16(sizeof(*request) - PQI_REQUEST_HEADER_LENGTH, 6280 &request->header.iu_length); 6281 put_unaligned_le16(io_request->index, &request->request_id); 6282 memcpy(request->lun_number, device->scsi3addr, 6283 sizeof(request->lun_number)); 6284 if (!pqi_is_logical_device(device) && ctrl_info->multi_lun_device_supported) 6285 request->ml_device_lun_number = (u8)scmd->device->lun; 6286 request->task_management_function = SOP_TASK_MANAGEMENT_LUN_RESET; 6287 if (ctrl_info->tmf_iu_timeout_supported) 6288 put_unaligned_le16(PQI_LUN_RESET_FIRMWARE_TIMEOUT_SECS, &request->timeout); 6289 6290 pqi_start_io(ctrl_info, &ctrl_info->queue_groups[PQI_DEFAULT_QUEUE_GROUP], RAID_PATH, 6291 io_request); 6292 6293 rc = pqi_wait_for_lun_reset_completion(ctrl_info, device, (u8)scmd->device->lun, &wait); 6294 if (rc == 0) 6295 rc = io_request->status; 6296 6297 pqi_free_io_request(io_request); 6298 6299 return rc; 6300 } 6301 6302 #define PQI_LUN_RESET_RETRIES 3 6303 #define PQI_LUN_RESET_RETRY_INTERVAL_MSECS (10 * 1000) 6304 #define PQI_LUN_RESET_PENDING_IO_TIMEOUT_MSECS (10 * 60 * 1000) 6305 #define PQI_LUN_RESET_FAILED_PENDING_IO_TIMEOUT_MSECS (2 * 60 * 1000) 6306 6307 static int pqi_lun_reset_with_retries(struct pqi_ctrl_info *ctrl_info, struct scsi_cmnd *scmd) 6308 { 6309 int reset_rc; 6310 int wait_rc; 6311 unsigned int retries; 6312 unsigned long timeout_msecs; 6313 struct pqi_scsi_dev *device; 6314 6315 device = scmd->device->hostdata; 6316 for (retries = 0;;) { 6317 reset_rc = pqi_lun_reset(ctrl_info, scmd); 6318 if (reset_rc == 0 || reset_rc == -ENODEV || ++retries > PQI_LUN_RESET_RETRIES) 6319 break; 6320 msleep(PQI_LUN_RESET_RETRY_INTERVAL_MSECS); 6321 } 6322 6323 timeout_msecs = reset_rc ? PQI_LUN_RESET_FAILED_PENDING_IO_TIMEOUT_MSECS : 6324 PQI_LUN_RESET_PENDING_IO_TIMEOUT_MSECS; 6325 6326 wait_rc = pqi_device_wait_for_pending_io(ctrl_info, device, scmd->device->lun, timeout_msecs); 6327 if (wait_rc && reset_rc == 0) 6328 reset_rc = wait_rc; 6329 6330 return reset_rc == 0 ? SUCCESS : FAILED; 6331 } 6332 6333 static int pqi_device_reset(struct pqi_ctrl_info *ctrl_info, struct scsi_cmnd *scmd) 6334 { 6335 int rc; 6336 struct pqi_scsi_dev *device; 6337 6338 device = scmd->device->hostdata; 6339 pqi_ctrl_block_requests(ctrl_info); 6340 pqi_ctrl_wait_until_quiesced(ctrl_info); 6341 pqi_fail_io_queued_for_device(ctrl_info, device); 6342 rc = pqi_wait_until_inbound_queues_empty(ctrl_info); 6343 if (rc) 6344 rc = FAILED; 6345 else 6346 rc = pqi_lun_reset_with_retries(ctrl_info, scmd); 6347 pqi_ctrl_unblock_requests(ctrl_info); 6348 6349 return rc; 6350 } 6351 6352 static int pqi_eh_device_reset_handler(struct scsi_cmnd *scmd) 6353 { 6354 int rc; 6355 struct Scsi_Host *shost; 6356 struct pqi_ctrl_info *ctrl_info; 6357 struct pqi_scsi_dev *device; 6358 6359 shost = scmd->device->host; 6360 ctrl_info = shost_to_hba(shost); 6361 device = scmd->device->hostdata; 6362 6363 mutex_lock(&ctrl_info->lun_reset_mutex); 6364 6365 dev_err(&ctrl_info->pci_dev->dev, 6366 "resetting scsi %d:%d:%d:%d due to cmd 0x%02x\n", 6367 shost->host_no, 6368 device->bus, device->target, (u32)scmd->device->lun, 6369 scmd->cmd_len > 0 ? scmd->cmnd[0] : 0xff); 6370 6371 pqi_check_ctrl_health(ctrl_info); 6372 if (pqi_ctrl_offline(ctrl_info)) 6373 rc = FAILED; 6374 else 6375 rc = pqi_device_reset(ctrl_info, scmd); 6376 6377 dev_err(&ctrl_info->pci_dev->dev, 6378 "reset of scsi %d:%d:%d:%d: %s\n", 6379 shost->host_no, device->bus, device->target, (u32)scmd->device->lun, 6380 rc == SUCCESS ? "SUCCESS" : "FAILED"); 6381 6382 mutex_unlock(&ctrl_info->lun_reset_mutex); 6383 6384 return rc; 6385 } 6386 6387 static int pqi_slave_alloc(struct scsi_device *sdev) 6388 { 6389 struct pqi_scsi_dev *device; 6390 unsigned long flags; 6391 struct pqi_ctrl_info *ctrl_info; 6392 struct scsi_target *starget; 6393 struct sas_rphy *rphy; 6394 6395 ctrl_info = shost_to_hba(sdev->host); 6396 6397 spin_lock_irqsave(&ctrl_info->scsi_device_list_lock, flags); 6398 6399 if (sdev_channel(sdev) == PQI_PHYSICAL_DEVICE_BUS) { 6400 starget = scsi_target(sdev); 6401 rphy = target_to_rphy(starget); 6402 device = pqi_find_device_by_sas_rphy(ctrl_info, rphy); 6403 if (device) { 6404 if (device->target_lun_valid) { 6405 device->ignore_device = true; 6406 } else { 6407 device->target = sdev_id(sdev); 6408 device->lun = sdev->lun; 6409 device->target_lun_valid = true; 6410 } 6411 } 6412 } else { 6413 device = pqi_find_scsi_dev(ctrl_info, sdev_channel(sdev), 6414 sdev_id(sdev), sdev->lun); 6415 } 6416 6417 if (device) { 6418 sdev->hostdata = device; 6419 device->sdev = sdev; 6420 if (device->queue_depth) { 6421 device->advertised_queue_depth = device->queue_depth; 6422 scsi_change_queue_depth(sdev, 6423 device->advertised_queue_depth); 6424 } 6425 if (pqi_is_logical_device(device)) { 6426 pqi_disable_write_same(sdev); 6427 } else { 6428 sdev->allow_restart = 1; 6429 if (device->device_type == SA_DEVICE_TYPE_NVME) 6430 pqi_disable_write_same(sdev); 6431 } 6432 } 6433 6434 spin_unlock_irqrestore(&ctrl_info->scsi_device_list_lock, flags); 6435 6436 return 0; 6437 } 6438 6439 static int pqi_map_queues(struct Scsi_Host *shost) 6440 { 6441 struct pqi_ctrl_info *ctrl_info = shost_to_hba(shost); 6442 6443 return blk_mq_pci_map_queues(&shost->tag_set.map[HCTX_TYPE_DEFAULT], 6444 ctrl_info->pci_dev, 0); 6445 } 6446 6447 static inline bool pqi_is_tape_changer_device(struct pqi_scsi_dev *device) 6448 { 6449 return device->devtype == TYPE_TAPE || device->devtype == TYPE_MEDIUM_CHANGER; 6450 } 6451 6452 static int pqi_slave_configure(struct scsi_device *sdev) 6453 { 6454 int rc = 0; 6455 struct pqi_scsi_dev *device; 6456 6457 device = sdev->hostdata; 6458 device->devtype = sdev->type; 6459 6460 if (pqi_is_tape_changer_device(device) && device->ignore_device) { 6461 rc = -ENXIO; 6462 device->ignore_device = false; 6463 } 6464 6465 return rc; 6466 } 6467 6468 static void pqi_slave_destroy(struct scsi_device *sdev) 6469 { 6470 struct pqi_ctrl_info *ctrl_info; 6471 struct pqi_scsi_dev *device; 6472 int mutex_acquired; 6473 unsigned long flags; 6474 6475 ctrl_info = shost_to_hba(sdev->host); 6476 6477 mutex_acquired = mutex_trylock(&ctrl_info->scan_mutex); 6478 if (!mutex_acquired) 6479 return; 6480 6481 device = sdev->hostdata; 6482 if (!device) { 6483 mutex_unlock(&ctrl_info->scan_mutex); 6484 return; 6485 } 6486 6487 spin_lock_irqsave(&ctrl_info->scsi_device_list_lock, flags); 6488 list_del(&device->scsi_device_list_entry); 6489 spin_unlock_irqrestore(&ctrl_info->scsi_device_list_lock, flags); 6490 6491 mutex_unlock(&ctrl_info->scan_mutex); 6492 6493 pqi_dev_info(ctrl_info, "removed", device); 6494 pqi_free_device(device); 6495 } 6496 6497 static int pqi_getpciinfo_ioctl(struct pqi_ctrl_info *ctrl_info, void __user *arg) 6498 { 6499 struct pci_dev *pci_dev; 6500 u32 subsystem_vendor; 6501 u32 subsystem_device; 6502 cciss_pci_info_struct pciinfo; 6503 6504 if (!arg) 6505 return -EINVAL; 6506 6507 pci_dev = ctrl_info->pci_dev; 6508 6509 pciinfo.domain = pci_domain_nr(pci_dev->bus); 6510 pciinfo.bus = pci_dev->bus->number; 6511 pciinfo.dev_fn = pci_dev->devfn; 6512 subsystem_vendor = pci_dev->subsystem_vendor; 6513 subsystem_device = pci_dev->subsystem_device; 6514 pciinfo.board_id = ((subsystem_device << 16) & 0xffff0000) | subsystem_vendor; 6515 6516 if (copy_to_user(arg, &pciinfo, sizeof(pciinfo))) 6517 return -EFAULT; 6518 6519 return 0; 6520 } 6521 6522 static int pqi_getdrivver_ioctl(void __user *arg) 6523 { 6524 u32 version; 6525 6526 if (!arg) 6527 return -EINVAL; 6528 6529 version = (DRIVER_MAJOR << 28) | (DRIVER_MINOR << 24) | 6530 (DRIVER_RELEASE << 16) | DRIVER_REVISION; 6531 6532 if (copy_to_user(arg, &version, sizeof(version))) 6533 return -EFAULT; 6534 6535 return 0; 6536 } 6537 6538 struct ciss_error_info { 6539 u8 scsi_status; 6540 int command_status; 6541 size_t sense_data_length; 6542 }; 6543 6544 static void pqi_error_info_to_ciss(struct pqi_raid_error_info *pqi_error_info, 6545 struct ciss_error_info *ciss_error_info) 6546 { 6547 int ciss_cmd_status; 6548 size_t sense_data_length; 6549 6550 switch (pqi_error_info->data_out_result) { 6551 case PQI_DATA_IN_OUT_GOOD: 6552 ciss_cmd_status = CISS_CMD_STATUS_SUCCESS; 6553 break; 6554 case PQI_DATA_IN_OUT_UNDERFLOW: 6555 ciss_cmd_status = CISS_CMD_STATUS_DATA_UNDERRUN; 6556 break; 6557 case PQI_DATA_IN_OUT_BUFFER_OVERFLOW: 6558 ciss_cmd_status = CISS_CMD_STATUS_DATA_OVERRUN; 6559 break; 6560 case PQI_DATA_IN_OUT_PROTOCOL_ERROR: 6561 case PQI_DATA_IN_OUT_BUFFER_ERROR: 6562 case PQI_DATA_IN_OUT_BUFFER_OVERFLOW_DESCRIPTOR_AREA: 6563 case PQI_DATA_IN_OUT_BUFFER_OVERFLOW_BRIDGE: 6564 case PQI_DATA_IN_OUT_ERROR: 6565 ciss_cmd_status = CISS_CMD_STATUS_PROTOCOL_ERROR; 6566 break; 6567 case PQI_DATA_IN_OUT_HARDWARE_ERROR: 6568 case PQI_DATA_IN_OUT_PCIE_FABRIC_ERROR: 6569 case PQI_DATA_IN_OUT_PCIE_COMPLETION_TIMEOUT: 6570 case PQI_DATA_IN_OUT_PCIE_COMPLETER_ABORT_RECEIVED: 6571 case PQI_DATA_IN_OUT_PCIE_UNSUPPORTED_REQUEST_RECEIVED: 6572 case PQI_DATA_IN_OUT_PCIE_ECRC_CHECK_FAILED: 6573 case PQI_DATA_IN_OUT_PCIE_UNSUPPORTED_REQUEST: 6574 case PQI_DATA_IN_OUT_PCIE_ACS_VIOLATION: 6575 case PQI_DATA_IN_OUT_PCIE_TLP_PREFIX_BLOCKED: 6576 case PQI_DATA_IN_OUT_PCIE_POISONED_MEMORY_READ: 6577 ciss_cmd_status = CISS_CMD_STATUS_HARDWARE_ERROR; 6578 break; 6579 case PQI_DATA_IN_OUT_UNSOLICITED_ABORT: 6580 ciss_cmd_status = CISS_CMD_STATUS_UNSOLICITED_ABORT; 6581 break; 6582 case PQI_DATA_IN_OUT_ABORTED: 6583 ciss_cmd_status = CISS_CMD_STATUS_ABORTED; 6584 break; 6585 case PQI_DATA_IN_OUT_TIMEOUT: 6586 ciss_cmd_status = CISS_CMD_STATUS_TIMEOUT; 6587 break; 6588 default: 6589 ciss_cmd_status = CISS_CMD_STATUS_TARGET_STATUS; 6590 break; 6591 } 6592 6593 sense_data_length = 6594 get_unaligned_le16(&pqi_error_info->sense_data_length); 6595 if (sense_data_length == 0) 6596 sense_data_length = 6597 get_unaligned_le16(&pqi_error_info->response_data_length); 6598 if (sense_data_length) 6599 if (sense_data_length > sizeof(pqi_error_info->data)) 6600 sense_data_length = sizeof(pqi_error_info->data); 6601 6602 ciss_error_info->scsi_status = pqi_error_info->status; 6603 ciss_error_info->command_status = ciss_cmd_status; 6604 ciss_error_info->sense_data_length = sense_data_length; 6605 } 6606 6607 static int pqi_passthru_ioctl(struct pqi_ctrl_info *ctrl_info, void __user *arg) 6608 { 6609 int rc; 6610 char *kernel_buffer = NULL; 6611 u16 iu_length; 6612 size_t sense_data_length; 6613 IOCTL_Command_struct iocommand; 6614 struct pqi_raid_path_request request; 6615 struct pqi_raid_error_info pqi_error_info; 6616 struct ciss_error_info ciss_error_info; 6617 6618 if (pqi_ctrl_offline(ctrl_info)) 6619 return -ENXIO; 6620 if (pqi_ofa_in_progress(ctrl_info) && pqi_ctrl_blocked(ctrl_info)) 6621 return -EBUSY; 6622 if (!arg) 6623 return -EINVAL; 6624 if (!capable(CAP_SYS_RAWIO)) 6625 return -EPERM; 6626 if (copy_from_user(&iocommand, arg, sizeof(iocommand))) 6627 return -EFAULT; 6628 if (iocommand.buf_size < 1 && 6629 iocommand.Request.Type.Direction != XFER_NONE) 6630 return -EINVAL; 6631 if (iocommand.Request.CDBLen > sizeof(request.cdb)) 6632 return -EINVAL; 6633 if (iocommand.Request.Type.Type != TYPE_CMD) 6634 return -EINVAL; 6635 6636 switch (iocommand.Request.Type.Direction) { 6637 case XFER_NONE: 6638 case XFER_WRITE: 6639 case XFER_READ: 6640 case XFER_READ | XFER_WRITE: 6641 break; 6642 default: 6643 return -EINVAL; 6644 } 6645 6646 if (iocommand.buf_size > 0) { 6647 kernel_buffer = kmalloc(iocommand.buf_size, GFP_KERNEL); 6648 if (!kernel_buffer) 6649 return -ENOMEM; 6650 if (iocommand.Request.Type.Direction & XFER_WRITE) { 6651 if (copy_from_user(kernel_buffer, iocommand.buf, 6652 iocommand.buf_size)) { 6653 rc = -EFAULT; 6654 goto out; 6655 } 6656 } else { 6657 memset(kernel_buffer, 0, iocommand.buf_size); 6658 } 6659 } 6660 6661 memset(&request, 0, sizeof(request)); 6662 6663 request.header.iu_type = PQI_REQUEST_IU_RAID_PATH_IO; 6664 iu_length = offsetof(struct pqi_raid_path_request, sg_descriptors) - 6665 PQI_REQUEST_HEADER_LENGTH; 6666 memcpy(request.lun_number, iocommand.LUN_info.LunAddrBytes, 6667 sizeof(request.lun_number)); 6668 memcpy(request.cdb, iocommand.Request.CDB, iocommand.Request.CDBLen); 6669 request.additional_cdb_bytes_usage = SOP_ADDITIONAL_CDB_BYTES_0; 6670 6671 switch (iocommand.Request.Type.Direction) { 6672 case XFER_NONE: 6673 request.data_direction = SOP_NO_DIRECTION_FLAG; 6674 break; 6675 case XFER_WRITE: 6676 request.data_direction = SOP_WRITE_FLAG; 6677 break; 6678 case XFER_READ: 6679 request.data_direction = SOP_READ_FLAG; 6680 break; 6681 case XFER_READ | XFER_WRITE: 6682 request.data_direction = SOP_BIDIRECTIONAL; 6683 break; 6684 } 6685 6686 request.task_attribute = SOP_TASK_ATTRIBUTE_SIMPLE; 6687 6688 if (iocommand.buf_size > 0) { 6689 put_unaligned_le32(iocommand.buf_size, &request.buffer_length); 6690 6691 rc = pqi_map_single(ctrl_info->pci_dev, 6692 &request.sg_descriptors[0], kernel_buffer, 6693 iocommand.buf_size, DMA_BIDIRECTIONAL); 6694 if (rc) 6695 goto out; 6696 6697 iu_length += sizeof(request.sg_descriptors[0]); 6698 } 6699 6700 put_unaligned_le16(iu_length, &request.header.iu_length); 6701 6702 if (ctrl_info->raid_iu_timeout_supported) 6703 put_unaligned_le32(iocommand.Request.Timeout, &request.timeout); 6704 6705 rc = pqi_submit_raid_request_synchronous(ctrl_info, &request.header, 6706 PQI_SYNC_FLAGS_INTERRUPTABLE, &pqi_error_info); 6707 6708 if (iocommand.buf_size > 0) 6709 pqi_pci_unmap(ctrl_info->pci_dev, request.sg_descriptors, 1, 6710 DMA_BIDIRECTIONAL); 6711 6712 memset(&iocommand.error_info, 0, sizeof(iocommand.error_info)); 6713 6714 if (rc == 0) { 6715 pqi_error_info_to_ciss(&pqi_error_info, &ciss_error_info); 6716 iocommand.error_info.ScsiStatus = ciss_error_info.scsi_status; 6717 iocommand.error_info.CommandStatus = 6718 ciss_error_info.command_status; 6719 sense_data_length = ciss_error_info.sense_data_length; 6720 if (sense_data_length) { 6721 if (sense_data_length > 6722 sizeof(iocommand.error_info.SenseInfo)) 6723 sense_data_length = 6724 sizeof(iocommand.error_info.SenseInfo); 6725 memcpy(iocommand.error_info.SenseInfo, 6726 pqi_error_info.data, sense_data_length); 6727 iocommand.error_info.SenseLen = sense_data_length; 6728 } 6729 } 6730 6731 if (copy_to_user(arg, &iocommand, sizeof(iocommand))) { 6732 rc = -EFAULT; 6733 goto out; 6734 } 6735 6736 if (rc == 0 && iocommand.buf_size > 0 && 6737 (iocommand.Request.Type.Direction & XFER_READ)) { 6738 if (copy_to_user(iocommand.buf, kernel_buffer, 6739 iocommand.buf_size)) { 6740 rc = -EFAULT; 6741 } 6742 } 6743 6744 out: 6745 kfree(kernel_buffer); 6746 6747 return rc; 6748 } 6749 6750 static int pqi_ioctl(struct scsi_device *sdev, unsigned int cmd, 6751 void __user *arg) 6752 { 6753 int rc; 6754 struct pqi_ctrl_info *ctrl_info; 6755 6756 ctrl_info = shost_to_hba(sdev->host); 6757 6758 switch (cmd) { 6759 case CCISS_DEREGDISK: 6760 case CCISS_REGNEWDISK: 6761 case CCISS_REGNEWD: 6762 rc = pqi_scan_scsi_devices(ctrl_info); 6763 break; 6764 case CCISS_GETPCIINFO: 6765 rc = pqi_getpciinfo_ioctl(ctrl_info, arg); 6766 break; 6767 case CCISS_GETDRIVVER: 6768 rc = pqi_getdrivver_ioctl(arg); 6769 break; 6770 case CCISS_PASSTHRU: 6771 rc = pqi_passthru_ioctl(ctrl_info, arg); 6772 break; 6773 default: 6774 rc = -EINVAL; 6775 break; 6776 } 6777 6778 return rc; 6779 } 6780 6781 static ssize_t pqi_firmware_version_show(struct device *dev, 6782 struct device_attribute *attr, char *buffer) 6783 { 6784 struct Scsi_Host *shost; 6785 struct pqi_ctrl_info *ctrl_info; 6786 6787 shost = class_to_shost(dev); 6788 ctrl_info = shost_to_hba(shost); 6789 6790 return scnprintf(buffer, PAGE_SIZE, "%s\n", ctrl_info->firmware_version); 6791 } 6792 6793 static ssize_t pqi_driver_version_show(struct device *dev, 6794 struct device_attribute *attr, char *buffer) 6795 { 6796 return scnprintf(buffer, PAGE_SIZE, "%s\n", DRIVER_VERSION BUILD_TIMESTAMP); 6797 } 6798 6799 static ssize_t pqi_serial_number_show(struct device *dev, 6800 struct device_attribute *attr, char *buffer) 6801 { 6802 struct Scsi_Host *shost; 6803 struct pqi_ctrl_info *ctrl_info; 6804 6805 shost = class_to_shost(dev); 6806 ctrl_info = shost_to_hba(shost); 6807 6808 return scnprintf(buffer, PAGE_SIZE, "%s\n", ctrl_info->serial_number); 6809 } 6810 6811 static ssize_t pqi_model_show(struct device *dev, 6812 struct device_attribute *attr, char *buffer) 6813 { 6814 struct Scsi_Host *shost; 6815 struct pqi_ctrl_info *ctrl_info; 6816 6817 shost = class_to_shost(dev); 6818 ctrl_info = shost_to_hba(shost); 6819 6820 return scnprintf(buffer, PAGE_SIZE, "%s\n", ctrl_info->model); 6821 } 6822 6823 static ssize_t pqi_vendor_show(struct device *dev, 6824 struct device_attribute *attr, char *buffer) 6825 { 6826 struct Scsi_Host *shost; 6827 struct pqi_ctrl_info *ctrl_info; 6828 6829 shost = class_to_shost(dev); 6830 ctrl_info = shost_to_hba(shost); 6831 6832 return scnprintf(buffer, PAGE_SIZE, "%s\n", ctrl_info->vendor); 6833 } 6834 6835 static ssize_t pqi_host_rescan_store(struct device *dev, 6836 struct device_attribute *attr, const char *buffer, size_t count) 6837 { 6838 struct Scsi_Host *shost = class_to_shost(dev); 6839 6840 pqi_scan_start(shost); 6841 6842 return count; 6843 } 6844 6845 static ssize_t pqi_lockup_action_show(struct device *dev, 6846 struct device_attribute *attr, char *buffer) 6847 { 6848 int count = 0; 6849 unsigned int i; 6850 6851 for (i = 0; i < ARRAY_SIZE(pqi_lockup_actions); i++) { 6852 if (pqi_lockup_actions[i].action == pqi_lockup_action) 6853 count += scnprintf(buffer + count, PAGE_SIZE - count, 6854 "[%s] ", pqi_lockup_actions[i].name); 6855 else 6856 count += scnprintf(buffer + count, PAGE_SIZE - count, 6857 "%s ", pqi_lockup_actions[i].name); 6858 } 6859 6860 count += scnprintf(buffer + count, PAGE_SIZE - count, "\n"); 6861 6862 return count; 6863 } 6864 6865 static ssize_t pqi_lockup_action_store(struct device *dev, 6866 struct device_attribute *attr, const char *buffer, size_t count) 6867 { 6868 unsigned int i; 6869 char *action_name; 6870 char action_name_buffer[32]; 6871 6872 strlcpy(action_name_buffer, buffer, sizeof(action_name_buffer)); 6873 action_name = strstrip(action_name_buffer); 6874 6875 for (i = 0; i < ARRAY_SIZE(pqi_lockup_actions); i++) { 6876 if (strcmp(action_name, pqi_lockup_actions[i].name) == 0) { 6877 pqi_lockup_action = pqi_lockup_actions[i].action; 6878 return count; 6879 } 6880 } 6881 6882 return -EINVAL; 6883 } 6884 6885 static ssize_t pqi_host_enable_stream_detection_show(struct device *dev, 6886 struct device_attribute *attr, char *buffer) 6887 { 6888 struct Scsi_Host *shost = class_to_shost(dev); 6889 struct pqi_ctrl_info *ctrl_info = shost_to_hba(shost); 6890 6891 return scnprintf(buffer, 10, "%x\n", 6892 ctrl_info->enable_stream_detection); 6893 } 6894 6895 static ssize_t pqi_host_enable_stream_detection_store(struct device *dev, 6896 struct device_attribute *attr, const char *buffer, size_t count) 6897 { 6898 struct Scsi_Host *shost = class_to_shost(dev); 6899 struct pqi_ctrl_info *ctrl_info = shost_to_hba(shost); 6900 u8 set_stream_detection = 0; 6901 6902 if (kstrtou8(buffer, 0, &set_stream_detection)) 6903 return -EINVAL; 6904 6905 if (set_stream_detection > 0) 6906 set_stream_detection = 1; 6907 6908 ctrl_info->enable_stream_detection = set_stream_detection; 6909 6910 return count; 6911 } 6912 6913 static ssize_t pqi_host_enable_r5_writes_show(struct device *dev, 6914 struct device_attribute *attr, char *buffer) 6915 { 6916 struct Scsi_Host *shost = class_to_shost(dev); 6917 struct pqi_ctrl_info *ctrl_info = shost_to_hba(shost); 6918 6919 return scnprintf(buffer, 10, "%x\n", ctrl_info->enable_r5_writes); 6920 } 6921 6922 static ssize_t pqi_host_enable_r5_writes_store(struct device *dev, 6923 struct device_attribute *attr, const char *buffer, size_t count) 6924 { 6925 struct Scsi_Host *shost = class_to_shost(dev); 6926 struct pqi_ctrl_info *ctrl_info = shost_to_hba(shost); 6927 u8 set_r5_writes = 0; 6928 6929 if (kstrtou8(buffer, 0, &set_r5_writes)) 6930 return -EINVAL; 6931 6932 if (set_r5_writes > 0) 6933 set_r5_writes = 1; 6934 6935 ctrl_info->enable_r5_writes = set_r5_writes; 6936 6937 return count; 6938 } 6939 6940 static ssize_t pqi_host_enable_r6_writes_show(struct device *dev, 6941 struct device_attribute *attr, char *buffer) 6942 { 6943 struct Scsi_Host *shost = class_to_shost(dev); 6944 struct pqi_ctrl_info *ctrl_info = shost_to_hba(shost); 6945 6946 return scnprintf(buffer, 10, "%x\n", ctrl_info->enable_r6_writes); 6947 } 6948 6949 static ssize_t pqi_host_enable_r6_writes_store(struct device *dev, 6950 struct device_attribute *attr, const char *buffer, size_t count) 6951 { 6952 struct Scsi_Host *shost = class_to_shost(dev); 6953 struct pqi_ctrl_info *ctrl_info = shost_to_hba(shost); 6954 u8 set_r6_writes = 0; 6955 6956 if (kstrtou8(buffer, 0, &set_r6_writes)) 6957 return -EINVAL; 6958 6959 if (set_r6_writes > 0) 6960 set_r6_writes = 1; 6961 6962 ctrl_info->enable_r6_writes = set_r6_writes; 6963 6964 return count; 6965 } 6966 6967 static DEVICE_ATTR(driver_version, 0444, pqi_driver_version_show, NULL); 6968 static DEVICE_ATTR(firmware_version, 0444, pqi_firmware_version_show, NULL); 6969 static DEVICE_ATTR(model, 0444, pqi_model_show, NULL); 6970 static DEVICE_ATTR(serial_number, 0444, pqi_serial_number_show, NULL); 6971 static DEVICE_ATTR(vendor, 0444, pqi_vendor_show, NULL); 6972 static DEVICE_ATTR(rescan, 0200, NULL, pqi_host_rescan_store); 6973 static DEVICE_ATTR(lockup_action, 0644, pqi_lockup_action_show, 6974 pqi_lockup_action_store); 6975 static DEVICE_ATTR(enable_stream_detection, 0644, 6976 pqi_host_enable_stream_detection_show, 6977 pqi_host_enable_stream_detection_store); 6978 static DEVICE_ATTR(enable_r5_writes, 0644, 6979 pqi_host_enable_r5_writes_show, pqi_host_enable_r5_writes_store); 6980 static DEVICE_ATTR(enable_r6_writes, 0644, 6981 pqi_host_enable_r6_writes_show, pqi_host_enable_r6_writes_store); 6982 6983 static struct attribute *pqi_shost_attrs[] = { 6984 &dev_attr_driver_version.attr, 6985 &dev_attr_firmware_version.attr, 6986 &dev_attr_model.attr, 6987 &dev_attr_serial_number.attr, 6988 &dev_attr_vendor.attr, 6989 &dev_attr_rescan.attr, 6990 &dev_attr_lockup_action.attr, 6991 &dev_attr_enable_stream_detection.attr, 6992 &dev_attr_enable_r5_writes.attr, 6993 &dev_attr_enable_r6_writes.attr, 6994 NULL 6995 }; 6996 6997 ATTRIBUTE_GROUPS(pqi_shost); 6998 6999 static ssize_t pqi_unique_id_show(struct device *dev, 7000 struct device_attribute *attr, char *buffer) 7001 { 7002 struct pqi_ctrl_info *ctrl_info; 7003 struct scsi_device *sdev; 7004 struct pqi_scsi_dev *device; 7005 unsigned long flags; 7006 u8 unique_id[16]; 7007 7008 sdev = to_scsi_device(dev); 7009 ctrl_info = shost_to_hba(sdev->host); 7010 7011 if (pqi_ctrl_offline(ctrl_info)) 7012 return -ENODEV; 7013 7014 spin_lock_irqsave(&ctrl_info->scsi_device_list_lock, flags); 7015 7016 device = sdev->hostdata; 7017 if (!device) { 7018 spin_unlock_irqrestore(&ctrl_info->scsi_device_list_lock, flags); 7019 return -ENODEV; 7020 } 7021 7022 if (device->is_physical_device) 7023 memcpy(unique_id, device->wwid, sizeof(device->wwid)); 7024 else 7025 memcpy(unique_id, device->volume_id, sizeof(device->volume_id)); 7026 7027 spin_unlock_irqrestore(&ctrl_info->scsi_device_list_lock, flags); 7028 7029 return scnprintf(buffer, PAGE_SIZE, 7030 "%02X%02X%02X%02X%02X%02X%02X%02X" 7031 "%02X%02X%02X%02X%02X%02X%02X%02X\n", 7032 unique_id[0], unique_id[1], unique_id[2], unique_id[3], 7033 unique_id[4], unique_id[5], unique_id[6], unique_id[7], 7034 unique_id[8], unique_id[9], unique_id[10], unique_id[11], 7035 unique_id[12], unique_id[13], unique_id[14], unique_id[15]); 7036 } 7037 7038 static ssize_t pqi_lunid_show(struct device *dev, 7039 struct device_attribute *attr, char *buffer) 7040 { 7041 struct pqi_ctrl_info *ctrl_info; 7042 struct scsi_device *sdev; 7043 struct pqi_scsi_dev *device; 7044 unsigned long flags; 7045 u8 lunid[8]; 7046 7047 sdev = to_scsi_device(dev); 7048 ctrl_info = shost_to_hba(sdev->host); 7049 7050 if (pqi_ctrl_offline(ctrl_info)) 7051 return -ENODEV; 7052 7053 spin_lock_irqsave(&ctrl_info->scsi_device_list_lock, flags); 7054 7055 device = sdev->hostdata; 7056 if (!device) { 7057 spin_unlock_irqrestore(&ctrl_info->scsi_device_list_lock, flags); 7058 return -ENODEV; 7059 } 7060 7061 memcpy(lunid, device->scsi3addr, sizeof(lunid)); 7062 7063 spin_unlock_irqrestore(&ctrl_info->scsi_device_list_lock, flags); 7064 7065 return scnprintf(buffer, PAGE_SIZE, "0x%8phN\n", lunid); 7066 } 7067 7068 #define MAX_PATHS 8 7069 7070 static ssize_t pqi_path_info_show(struct device *dev, 7071 struct device_attribute *attr, char *buf) 7072 { 7073 struct pqi_ctrl_info *ctrl_info; 7074 struct scsi_device *sdev; 7075 struct pqi_scsi_dev *device; 7076 unsigned long flags; 7077 int i; 7078 int output_len = 0; 7079 u8 box; 7080 u8 bay; 7081 u8 path_map_index; 7082 char *active; 7083 u8 phys_connector[2]; 7084 7085 sdev = to_scsi_device(dev); 7086 ctrl_info = shost_to_hba(sdev->host); 7087 7088 if (pqi_ctrl_offline(ctrl_info)) 7089 return -ENODEV; 7090 7091 spin_lock_irqsave(&ctrl_info->scsi_device_list_lock, flags); 7092 7093 device = sdev->hostdata; 7094 if (!device) { 7095 spin_unlock_irqrestore(&ctrl_info->scsi_device_list_lock, flags); 7096 return -ENODEV; 7097 } 7098 7099 bay = device->bay; 7100 for (i = 0; i < MAX_PATHS; i++) { 7101 path_map_index = 1 << i; 7102 if (i == device->active_path_index) 7103 active = "Active"; 7104 else if (device->path_map & path_map_index) 7105 active = "Inactive"; 7106 else 7107 continue; 7108 7109 output_len += scnprintf(buf + output_len, 7110 PAGE_SIZE - output_len, 7111 "[%d:%d:%d:%d] %20.20s ", 7112 ctrl_info->scsi_host->host_no, 7113 device->bus, device->target, 7114 device->lun, 7115 scsi_device_type(device->devtype)); 7116 7117 if (device->devtype == TYPE_RAID || 7118 pqi_is_logical_device(device)) 7119 goto end_buffer; 7120 7121 memcpy(&phys_connector, &device->phys_connector[i], 7122 sizeof(phys_connector)); 7123 if (phys_connector[0] < '0') 7124 phys_connector[0] = '0'; 7125 if (phys_connector[1] < '0') 7126 phys_connector[1] = '0'; 7127 7128 output_len += scnprintf(buf + output_len, 7129 PAGE_SIZE - output_len, 7130 "PORT: %.2s ", phys_connector); 7131 7132 box = device->box[i]; 7133 if (box != 0 && box != 0xFF) 7134 output_len += scnprintf(buf + output_len, 7135 PAGE_SIZE - output_len, 7136 "BOX: %hhu ", box); 7137 7138 if ((device->devtype == TYPE_DISK || 7139 device->devtype == TYPE_ZBC) && 7140 pqi_expose_device(device)) 7141 output_len += scnprintf(buf + output_len, 7142 PAGE_SIZE - output_len, 7143 "BAY: %hhu ", bay); 7144 7145 end_buffer: 7146 output_len += scnprintf(buf + output_len, 7147 PAGE_SIZE - output_len, 7148 "%s\n", active); 7149 } 7150 7151 spin_unlock_irqrestore(&ctrl_info->scsi_device_list_lock, flags); 7152 7153 return output_len; 7154 } 7155 7156 static ssize_t pqi_sas_address_show(struct device *dev, 7157 struct device_attribute *attr, char *buffer) 7158 { 7159 struct pqi_ctrl_info *ctrl_info; 7160 struct scsi_device *sdev; 7161 struct pqi_scsi_dev *device; 7162 unsigned long flags; 7163 u64 sas_address; 7164 7165 sdev = to_scsi_device(dev); 7166 ctrl_info = shost_to_hba(sdev->host); 7167 7168 if (pqi_ctrl_offline(ctrl_info)) 7169 return -ENODEV; 7170 7171 spin_lock_irqsave(&ctrl_info->scsi_device_list_lock, flags); 7172 7173 device = sdev->hostdata; 7174 if (!device) { 7175 spin_unlock_irqrestore(&ctrl_info->scsi_device_list_lock, flags); 7176 return -ENODEV; 7177 } 7178 7179 sas_address = device->sas_address; 7180 7181 spin_unlock_irqrestore(&ctrl_info->scsi_device_list_lock, flags); 7182 7183 return scnprintf(buffer, PAGE_SIZE, "0x%016llx\n", sas_address); 7184 } 7185 7186 static ssize_t pqi_ssd_smart_path_enabled_show(struct device *dev, 7187 struct device_attribute *attr, char *buffer) 7188 { 7189 struct pqi_ctrl_info *ctrl_info; 7190 struct scsi_device *sdev; 7191 struct pqi_scsi_dev *device; 7192 unsigned long flags; 7193 7194 sdev = to_scsi_device(dev); 7195 ctrl_info = shost_to_hba(sdev->host); 7196 7197 if (pqi_ctrl_offline(ctrl_info)) 7198 return -ENODEV; 7199 7200 spin_lock_irqsave(&ctrl_info->scsi_device_list_lock, flags); 7201 7202 device = sdev->hostdata; 7203 if (!device) { 7204 spin_unlock_irqrestore(&ctrl_info->scsi_device_list_lock, flags); 7205 return -ENODEV; 7206 } 7207 7208 buffer[0] = device->raid_bypass_enabled ? '1' : '0'; 7209 buffer[1] = '\n'; 7210 buffer[2] = '\0'; 7211 7212 spin_unlock_irqrestore(&ctrl_info->scsi_device_list_lock, flags); 7213 7214 return 2; 7215 } 7216 7217 static ssize_t pqi_raid_level_show(struct device *dev, 7218 struct device_attribute *attr, char *buffer) 7219 { 7220 struct pqi_ctrl_info *ctrl_info; 7221 struct scsi_device *sdev; 7222 struct pqi_scsi_dev *device; 7223 unsigned long flags; 7224 char *raid_level; 7225 7226 sdev = to_scsi_device(dev); 7227 ctrl_info = shost_to_hba(sdev->host); 7228 7229 if (pqi_ctrl_offline(ctrl_info)) 7230 return -ENODEV; 7231 7232 spin_lock_irqsave(&ctrl_info->scsi_device_list_lock, flags); 7233 7234 device = sdev->hostdata; 7235 if (!device) { 7236 spin_unlock_irqrestore(&ctrl_info->scsi_device_list_lock, flags); 7237 return -ENODEV; 7238 } 7239 7240 if (pqi_is_logical_device(device)) 7241 raid_level = pqi_raid_level_to_string(device->raid_level); 7242 else 7243 raid_level = "N/A"; 7244 7245 spin_unlock_irqrestore(&ctrl_info->scsi_device_list_lock, flags); 7246 7247 return scnprintf(buffer, PAGE_SIZE, "%s\n", raid_level); 7248 } 7249 7250 static ssize_t pqi_raid_bypass_cnt_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 int raid_bypass_cnt; 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 raid_bypass_cnt = atomic_read(&device->raid_bypass_cnt); 7274 7275 spin_unlock_irqrestore(&ctrl_info->scsi_device_list_lock, flags); 7276 7277 return scnprintf(buffer, PAGE_SIZE, "0x%x\n", raid_bypass_cnt); 7278 } 7279 7280 static ssize_t pqi_sas_ncq_prio_enable_show(struct device *dev, 7281 struct device_attribute *attr, char *buf) 7282 { 7283 struct pqi_ctrl_info *ctrl_info; 7284 struct scsi_device *sdev; 7285 struct pqi_scsi_dev *device; 7286 unsigned long flags; 7287 int output_len = 0; 7288 7289 sdev = to_scsi_device(dev); 7290 ctrl_info = shost_to_hba(sdev->host); 7291 7292 if (pqi_ctrl_offline(ctrl_info)) 7293 return -ENODEV; 7294 7295 spin_lock_irqsave(&ctrl_info->scsi_device_list_lock, flags); 7296 7297 device = sdev->hostdata; 7298 if (!device) { 7299 spin_unlock_irqrestore(&ctrl_info->scsi_device_list_lock, flags); 7300 return -ENODEV; 7301 } 7302 7303 output_len = snprintf(buf, PAGE_SIZE, "%d\n", 7304 device->ncq_prio_enable); 7305 spin_unlock_irqrestore(&ctrl_info->scsi_device_list_lock, flags); 7306 7307 return output_len; 7308 } 7309 7310 static ssize_t pqi_sas_ncq_prio_enable_store(struct device *dev, 7311 struct device_attribute *attr, 7312 const char *buf, size_t count) 7313 { 7314 struct pqi_ctrl_info *ctrl_info; 7315 struct scsi_device *sdev; 7316 struct pqi_scsi_dev *device; 7317 unsigned long flags; 7318 u8 ncq_prio_enable = 0; 7319 7320 if (kstrtou8(buf, 0, &ncq_prio_enable)) 7321 return -EINVAL; 7322 7323 sdev = to_scsi_device(dev); 7324 ctrl_info = shost_to_hba(sdev->host); 7325 7326 spin_lock_irqsave(&ctrl_info->scsi_device_list_lock, flags); 7327 7328 device = sdev->hostdata; 7329 7330 if (!device) { 7331 spin_unlock_irqrestore(&ctrl_info->scsi_device_list_lock, flags); 7332 return -ENODEV; 7333 } 7334 7335 if (!device->ncq_prio_support || 7336 !device->is_physical_device) { 7337 spin_unlock_irqrestore(&ctrl_info->scsi_device_list_lock, flags); 7338 return -EINVAL; 7339 } 7340 7341 device->ncq_prio_enable = ncq_prio_enable; 7342 7343 spin_unlock_irqrestore(&ctrl_info->scsi_device_list_lock, flags); 7344 7345 return strlen(buf); 7346 } 7347 7348 static DEVICE_ATTR(lunid, 0444, pqi_lunid_show, NULL); 7349 static DEVICE_ATTR(unique_id, 0444, pqi_unique_id_show, NULL); 7350 static DEVICE_ATTR(path_info, 0444, pqi_path_info_show, NULL); 7351 static DEVICE_ATTR(sas_address, 0444, pqi_sas_address_show, NULL); 7352 static DEVICE_ATTR(ssd_smart_path_enabled, 0444, pqi_ssd_smart_path_enabled_show, NULL); 7353 static DEVICE_ATTR(raid_level, 0444, pqi_raid_level_show, NULL); 7354 static DEVICE_ATTR(raid_bypass_cnt, 0444, pqi_raid_bypass_cnt_show, NULL); 7355 static DEVICE_ATTR(sas_ncq_prio_enable, 0644, 7356 pqi_sas_ncq_prio_enable_show, pqi_sas_ncq_prio_enable_store); 7357 7358 static struct attribute *pqi_sdev_attrs[] = { 7359 &dev_attr_lunid.attr, 7360 &dev_attr_unique_id.attr, 7361 &dev_attr_path_info.attr, 7362 &dev_attr_sas_address.attr, 7363 &dev_attr_ssd_smart_path_enabled.attr, 7364 &dev_attr_raid_level.attr, 7365 &dev_attr_raid_bypass_cnt.attr, 7366 &dev_attr_sas_ncq_prio_enable.attr, 7367 NULL 7368 }; 7369 7370 ATTRIBUTE_GROUPS(pqi_sdev); 7371 7372 static struct scsi_host_template pqi_driver_template = { 7373 .module = THIS_MODULE, 7374 .name = DRIVER_NAME_SHORT, 7375 .proc_name = DRIVER_NAME_SHORT, 7376 .queuecommand = pqi_scsi_queue_command, 7377 .scan_start = pqi_scan_start, 7378 .scan_finished = pqi_scan_finished, 7379 .this_id = -1, 7380 .eh_device_reset_handler = pqi_eh_device_reset_handler, 7381 .ioctl = pqi_ioctl, 7382 .slave_alloc = pqi_slave_alloc, 7383 .slave_configure = pqi_slave_configure, 7384 .slave_destroy = pqi_slave_destroy, 7385 .map_queues = pqi_map_queues, 7386 .sdev_groups = pqi_sdev_groups, 7387 .shost_groups = pqi_shost_groups, 7388 .cmd_size = sizeof(struct pqi_cmd_priv), 7389 }; 7390 7391 static int pqi_register_scsi(struct pqi_ctrl_info *ctrl_info) 7392 { 7393 int rc; 7394 struct Scsi_Host *shost; 7395 7396 shost = scsi_host_alloc(&pqi_driver_template, sizeof(ctrl_info)); 7397 if (!shost) { 7398 dev_err(&ctrl_info->pci_dev->dev, "scsi_host_alloc failed\n"); 7399 return -ENOMEM; 7400 } 7401 7402 shost->io_port = 0; 7403 shost->n_io_port = 0; 7404 shost->this_id = -1; 7405 shost->max_channel = PQI_MAX_BUS; 7406 shost->max_cmd_len = MAX_COMMAND_SIZE; 7407 shost->max_lun = PQI_MAX_LUNS_PER_DEVICE; 7408 shost->max_lun = ~0; 7409 shost->max_id = ~0; 7410 shost->max_sectors = ctrl_info->max_sectors; 7411 shost->can_queue = ctrl_info->scsi_ml_can_queue; 7412 shost->cmd_per_lun = shost->can_queue; 7413 shost->sg_tablesize = ctrl_info->sg_tablesize; 7414 shost->transportt = pqi_sas_transport_template; 7415 shost->irq = pci_irq_vector(ctrl_info->pci_dev, 0); 7416 shost->unique_id = shost->irq; 7417 shost->nr_hw_queues = ctrl_info->num_queue_groups; 7418 shost->host_tagset = 1; 7419 shost->hostdata[0] = (unsigned long)ctrl_info; 7420 7421 rc = scsi_add_host(shost, &ctrl_info->pci_dev->dev); 7422 if (rc) { 7423 dev_err(&ctrl_info->pci_dev->dev, "scsi_add_host failed\n"); 7424 goto free_host; 7425 } 7426 7427 rc = pqi_add_sas_host(shost, ctrl_info); 7428 if (rc) { 7429 dev_err(&ctrl_info->pci_dev->dev, "add SAS host failed\n"); 7430 goto remove_host; 7431 } 7432 7433 ctrl_info->scsi_host = shost; 7434 7435 return 0; 7436 7437 remove_host: 7438 scsi_remove_host(shost); 7439 free_host: 7440 scsi_host_put(shost); 7441 7442 return rc; 7443 } 7444 7445 static void pqi_unregister_scsi(struct pqi_ctrl_info *ctrl_info) 7446 { 7447 struct Scsi_Host *shost; 7448 7449 pqi_delete_sas_host(ctrl_info); 7450 7451 shost = ctrl_info->scsi_host; 7452 if (!shost) 7453 return; 7454 7455 scsi_remove_host(shost); 7456 scsi_host_put(shost); 7457 } 7458 7459 static int pqi_wait_for_pqi_reset_completion(struct pqi_ctrl_info *ctrl_info) 7460 { 7461 int rc = 0; 7462 struct pqi_device_registers __iomem *pqi_registers; 7463 unsigned long timeout; 7464 unsigned int timeout_msecs; 7465 union pqi_reset_register reset_reg; 7466 7467 pqi_registers = ctrl_info->pqi_registers; 7468 timeout_msecs = readw(&pqi_registers->max_reset_timeout) * 100; 7469 timeout = msecs_to_jiffies(timeout_msecs) + jiffies; 7470 7471 while (1) { 7472 msleep(PQI_RESET_POLL_INTERVAL_MSECS); 7473 reset_reg.all_bits = readl(&pqi_registers->device_reset); 7474 if (reset_reg.bits.reset_action == PQI_RESET_ACTION_COMPLETED) 7475 break; 7476 if (!sis_is_firmware_running(ctrl_info)) { 7477 rc = -ENXIO; 7478 break; 7479 } 7480 if (time_after(jiffies, timeout)) { 7481 rc = -ETIMEDOUT; 7482 break; 7483 } 7484 } 7485 7486 return rc; 7487 } 7488 7489 static int pqi_reset(struct pqi_ctrl_info *ctrl_info) 7490 { 7491 int rc; 7492 union pqi_reset_register reset_reg; 7493 7494 if (ctrl_info->pqi_reset_quiesce_supported) { 7495 rc = sis_pqi_reset_quiesce(ctrl_info); 7496 if (rc) { 7497 dev_err(&ctrl_info->pci_dev->dev, 7498 "PQI reset failed during quiesce with error %d\n", rc); 7499 return rc; 7500 } 7501 } 7502 7503 reset_reg.all_bits = 0; 7504 reset_reg.bits.reset_type = PQI_RESET_TYPE_HARD_RESET; 7505 reset_reg.bits.reset_action = PQI_RESET_ACTION_RESET; 7506 7507 writel(reset_reg.all_bits, &ctrl_info->pqi_registers->device_reset); 7508 7509 rc = pqi_wait_for_pqi_reset_completion(ctrl_info); 7510 if (rc) 7511 dev_err(&ctrl_info->pci_dev->dev, 7512 "PQI reset failed with error %d\n", rc); 7513 7514 return rc; 7515 } 7516 7517 static int pqi_get_ctrl_serial_number(struct pqi_ctrl_info *ctrl_info) 7518 { 7519 int rc; 7520 struct bmic_sense_subsystem_info *sense_info; 7521 7522 sense_info = kzalloc(sizeof(*sense_info), GFP_KERNEL); 7523 if (!sense_info) 7524 return -ENOMEM; 7525 7526 rc = pqi_sense_subsystem_info(ctrl_info, sense_info); 7527 if (rc) 7528 goto out; 7529 7530 memcpy(ctrl_info->serial_number, sense_info->ctrl_serial_number, 7531 sizeof(sense_info->ctrl_serial_number)); 7532 ctrl_info->serial_number[sizeof(sense_info->ctrl_serial_number)] = '\0'; 7533 7534 out: 7535 kfree(sense_info); 7536 7537 return rc; 7538 } 7539 7540 static int pqi_get_ctrl_product_details(struct pqi_ctrl_info *ctrl_info) 7541 { 7542 int rc; 7543 struct bmic_identify_controller *identify; 7544 7545 identify = kmalloc(sizeof(*identify), GFP_KERNEL); 7546 if (!identify) 7547 return -ENOMEM; 7548 7549 rc = pqi_identify_controller(ctrl_info, identify); 7550 if (rc) 7551 goto out; 7552 7553 if (get_unaligned_le32(&identify->extra_controller_flags) & 7554 BMIC_IDENTIFY_EXTRA_FLAGS_LONG_FW_VERSION_SUPPORTED) { 7555 memcpy(ctrl_info->firmware_version, 7556 identify->firmware_version_long, 7557 sizeof(identify->firmware_version_long)); 7558 } else { 7559 memcpy(ctrl_info->firmware_version, 7560 identify->firmware_version_short, 7561 sizeof(identify->firmware_version_short)); 7562 ctrl_info->firmware_version 7563 [sizeof(identify->firmware_version_short)] = '\0'; 7564 snprintf(ctrl_info->firmware_version + 7565 strlen(ctrl_info->firmware_version), 7566 sizeof(ctrl_info->firmware_version) - 7567 sizeof(identify->firmware_version_short), 7568 "-%u", 7569 get_unaligned_le16(&identify->firmware_build_number)); 7570 } 7571 7572 memcpy(ctrl_info->model, identify->product_id, 7573 sizeof(identify->product_id)); 7574 ctrl_info->model[sizeof(identify->product_id)] = '\0'; 7575 7576 memcpy(ctrl_info->vendor, identify->vendor_id, 7577 sizeof(identify->vendor_id)); 7578 ctrl_info->vendor[sizeof(identify->vendor_id)] = '\0'; 7579 7580 dev_info(&ctrl_info->pci_dev->dev, 7581 "Firmware version: %s\n", ctrl_info->firmware_version); 7582 7583 out: 7584 kfree(identify); 7585 7586 return rc; 7587 } 7588 7589 struct pqi_config_table_section_info { 7590 struct pqi_ctrl_info *ctrl_info; 7591 void *section; 7592 u32 section_offset; 7593 void __iomem *section_iomem_addr; 7594 }; 7595 7596 static inline bool pqi_is_firmware_feature_supported( 7597 struct pqi_config_table_firmware_features *firmware_features, 7598 unsigned int bit_position) 7599 { 7600 unsigned int byte_index; 7601 7602 byte_index = bit_position / BITS_PER_BYTE; 7603 7604 if (byte_index >= le16_to_cpu(firmware_features->num_elements)) 7605 return false; 7606 7607 return firmware_features->features_supported[byte_index] & 7608 (1 << (bit_position % BITS_PER_BYTE)) ? true : false; 7609 } 7610 7611 static inline bool pqi_is_firmware_feature_enabled( 7612 struct pqi_config_table_firmware_features *firmware_features, 7613 void __iomem *firmware_features_iomem_addr, 7614 unsigned int bit_position) 7615 { 7616 unsigned int byte_index; 7617 u8 __iomem *features_enabled_iomem_addr; 7618 7619 byte_index = (bit_position / BITS_PER_BYTE) + 7620 (le16_to_cpu(firmware_features->num_elements) * 2); 7621 7622 features_enabled_iomem_addr = firmware_features_iomem_addr + 7623 offsetof(struct pqi_config_table_firmware_features, 7624 features_supported) + byte_index; 7625 7626 return *((__force u8 *)features_enabled_iomem_addr) & 7627 (1 << (bit_position % BITS_PER_BYTE)) ? true : false; 7628 } 7629 7630 static inline void pqi_request_firmware_feature( 7631 struct pqi_config_table_firmware_features *firmware_features, 7632 unsigned int bit_position) 7633 { 7634 unsigned int byte_index; 7635 7636 byte_index = (bit_position / BITS_PER_BYTE) + 7637 le16_to_cpu(firmware_features->num_elements); 7638 7639 firmware_features->features_supported[byte_index] |= 7640 (1 << (bit_position % BITS_PER_BYTE)); 7641 } 7642 7643 static int pqi_config_table_update(struct pqi_ctrl_info *ctrl_info, 7644 u16 first_section, u16 last_section) 7645 { 7646 struct pqi_vendor_general_request request; 7647 7648 memset(&request, 0, sizeof(request)); 7649 7650 request.header.iu_type = PQI_REQUEST_IU_VENDOR_GENERAL; 7651 put_unaligned_le16(sizeof(request) - PQI_REQUEST_HEADER_LENGTH, 7652 &request.header.iu_length); 7653 put_unaligned_le16(PQI_VENDOR_GENERAL_CONFIG_TABLE_UPDATE, 7654 &request.function_code); 7655 put_unaligned_le16(first_section, 7656 &request.data.config_table_update.first_section); 7657 put_unaligned_le16(last_section, 7658 &request.data.config_table_update.last_section); 7659 7660 return pqi_submit_raid_request_synchronous(ctrl_info, &request.header, 0, NULL); 7661 } 7662 7663 static int pqi_enable_firmware_features(struct pqi_ctrl_info *ctrl_info, 7664 struct pqi_config_table_firmware_features *firmware_features, 7665 void __iomem *firmware_features_iomem_addr) 7666 { 7667 void *features_requested; 7668 void __iomem *features_requested_iomem_addr; 7669 void __iomem *host_max_known_feature_iomem_addr; 7670 7671 features_requested = firmware_features->features_supported + 7672 le16_to_cpu(firmware_features->num_elements); 7673 7674 features_requested_iomem_addr = firmware_features_iomem_addr + 7675 (features_requested - (void *)firmware_features); 7676 7677 memcpy_toio(features_requested_iomem_addr, features_requested, 7678 le16_to_cpu(firmware_features->num_elements)); 7679 7680 if (pqi_is_firmware_feature_supported(firmware_features, 7681 PQI_FIRMWARE_FEATURE_MAX_KNOWN_FEATURE)) { 7682 host_max_known_feature_iomem_addr = 7683 features_requested_iomem_addr + 7684 (le16_to_cpu(firmware_features->num_elements) * 2) + 7685 sizeof(__le16); 7686 writew(PQI_FIRMWARE_FEATURE_MAXIMUM, 7687 host_max_known_feature_iomem_addr); 7688 } 7689 7690 return pqi_config_table_update(ctrl_info, 7691 PQI_CONFIG_TABLE_SECTION_FIRMWARE_FEATURES, 7692 PQI_CONFIG_TABLE_SECTION_FIRMWARE_FEATURES); 7693 } 7694 7695 struct pqi_firmware_feature { 7696 char *feature_name; 7697 unsigned int feature_bit; 7698 bool supported; 7699 bool enabled; 7700 void (*feature_status)(struct pqi_ctrl_info *ctrl_info, 7701 struct pqi_firmware_feature *firmware_feature); 7702 }; 7703 7704 static void pqi_firmware_feature_status(struct pqi_ctrl_info *ctrl_info, 7705 struct pqi_firmware_feature *firmware_feature) 7706 { 7707 if (!firmware_feature->supported) { 7708 dev_info(&ctrl_info->pci_dev->dev, "%s not supported by controller\n", 7709 firmware_feature->feature_name); 7710 return; 7711 } 7712 7713 if (firmware_feature->enabled) { 7714 dev_info(&ctrl_info->pci_dev->dev, 7715 "%s enabled\n", firmware_feature->feature_name); 7716 return; 7717 } 7718 7719 dev_err(&ctrl_info->pci_dev->dev, "failed to enable %s\n", 7720 firmware_feature->feature_name); 7721 } 7722 7723 static void pqi_ctrl_update_feature_flags(struct pqi_ctrl_info *ctrl_info, 7724 struct pqi_firmware_feature *firmware_feature) 7725 { 7726 switch (firmware_feature->feature_bit) { 7727 case PQI_FIRMWARE_FEATURE_RAID_1_WRITE_BYPASS: 7728 ctrl_info->enable_r1_writes = firmware_feature->enabled; 7729 break; 7730 case PQI_FIRMWARE_FEATURE_RAID_5_WRITE_BYPASS: 7731 ctrl_info->enable_r5_writes = firmware_feature->enabled; 7732 break; 7733 case PQI_FIRMWARE_FEATURE_RAID_6_WRITE_BYPASS: 7734 ctrl_info->enable_r6_writes = firmware_feature->enabled; 7735 break; 7736 case PQI_FIRMWARE_FEATURE_SOFT_RESET_HANDSHAKE: 7737 ctrl_info->soft_reset_handshake_supported = 7738 firmware_feature->enabled && 7739 pqi_read_soft_reset_status(ctrl_info); 7740 break; 7741 case PQI_FIRMWARE_FEATURE_RAID_IU_TIMEOUT: 7742 ctrl_info->raid_iu_timeout_supported = firmware_feature->enabled; 7743 break; 7744 case PQI_FIRMWARE_FEATURE_TMF_IU_TIMEOUT: 7745 ctrl_info->tmf_iu_timeout_supported = firmware_feature->enabled; 7746 break; 7747 case PQI_FIRMWARE_FEATURE_FW_TRIAGE: 7748 ctrl_info->firmware_triage_supported = firmware_feature->enabled; 7749 pqi_save_fw_triage_setting(ctrl_info, firmware_feature->enabled); 7750 break; 7751 case PQI_FIRMWARE_FEATURE_RPL_EXTENDED_FORMAT_4_5: 7752 ctrl_info->rpl_extended_format_4_5_supported = firmware_feature->enabled; 7753 break; 7754 case PQI_FIRMWARE_FEATURE_MULTI_LUN_DEVICE_SUPPORT: 7755 ctrl_info->multi_lun_device_supported = firmware_feature->enabled; 7756 break; 7757 } 7758 7759 pqi_firmware_feature_status(ctrl_info, firmware_feature); 7760 } 7761 7762 static inline void pqi_firmware_feature_update(struct pqi_ctrl_info *ctrl_info, 7763 struct pqi_firmware_feature *firmware_feature) 7764 { 7765 if (firmware_feature->feature_status) 7766 firmware_feature->feature_status(ctrl_info, firmware_feature); 7767 } 7768 7769 static DEFINE_MUTEX(pqi_firmware_features_mutex); 7770 7771 static struct pqi_firmware_feature pqi_firmware_features[] = { 7772 { 7773 .feature_name = "Online Firmware Activation", 7774 .feature_bit = PQI_FIRMWARE_FEATURE_OFA, 7775 .feature_status = pqi_firmware_feature_status, 7776 }, 7777 { 7778 .feature_name = "Serial Management Protocol", 7779 .feature_bit = PQI_FIRMWARE_FEATURE_SMP, 7780 .feature_status = pqi_firmware_feature_status, 7781 }, 7782 { 7783 .feature_name = "Maximum Known Feature", 7784 .feature_bit = PQI_FIRMWARE_FEATURE_MAX_KNOWN_FEATURE, 7785 .feature_status = pqi_firmware_feature_status, 7786 }, 7787 { 7788 .feature_name = "RAID 0 Read Bypass", 7789 .feature_bit = PQI_FIRMWARE_FEATURE_RAID_0_READ_BYPASS, 7790 .feature_status = pqi_firmware_feature_status, 7791 }, 7792 { 7793 .feature_name = "RAID 1 Read Bypass", 7794 .feature_bit = PQI_FIRMWARE_FEATURE_RAID_1_READ_BYPASS, 7795 .feature_status = pqi_firmware_feature_status, 7796 }, 7797 { 7798 .feature_name = "RAID 5 Read Bypass", 7799 .feature_bit = PQI_FIRMWARE_FEATURE_RAID_5_READ_BYPASS, 7800 .feature_status = pqi_firmware_feature_status, 7801 }, 7802 { 7803 .feature_name = "RAID 6 Read Bypass", 7804 .feature_bit = PQI_FIRMWARE_FEATURE_RAID_6_READ_BYPASS, 7805 .feature_status = pqi_firmware_feature_status, 7806 }, 7807 { 7808 .feature_name = "RAID 0 Write Bypass", 7809 .feature_bit = PQI_FIRMWARE_FEATURE_RAID_0_WRITE_BYPASS, 7810 .feature_status = pqi_firmware_feature_status, 7811 }, 7812 { 7813 .feature_name = "RAID 1 Write Bypass", 7814 .feature_bit = PQI_FIRMWARE_FEATURE_RAID_1_WRITE_BYPASS, 7815 .feature_status = pqi_ctrl_update_feature_flags, 7816 }, 7817 { 7818 .feature_name = "RAID 5 Write Bypass", 7819 .feature_bit = PQI_FIRMWARE_FEATURE_RAID_5_WRITE_BYPASS, 7820 .feature_status = pqi_ctrl_update_feature_flags, 7821 }, 7822 { 7823 .feature_name = "RAID 6 Write Bypass", 7824 .feature_bit = PQI_FIRMWARE_FEATURE_RAID_6_WRITE_BYPASS, 7825 .feature_status = pqi_ctrl_update_feature_flags, 7826 }, 7827 { 7828 .feature_name = "New Soft Reset Handshake", 7829 .feature_bit = PQI_FIRMWARE_FEATURE_SOFT_RESET_HANDSHAKE, 7830 .feature_status = pqi_ctrl_update_feature_flags, 7831 }, 7832 { 7833 .feature_name = "RAID IU Timeout", 7834 .feature_bit = PQI_FIRMWARE_FEATURE_RAID_IU_TIMEOUT, 7835 .feature_status = pqi_ctrl_update_feature_flags, 7836 }, 7837 { 7838 .feature_name = "TMF IU Timeout", 7839 .feature_bit = PQI_FIRMWARE_FEATURE_TMF_IU_TIMEOUT, 7840 .feature_status = pqi_ctrl_update_feature_flags, 7841 }, 7842 { 7843 .feature_name = "RAID Bypass on encrypted logical volumes on NVMe", 7844 .feature_bit = PQI_FIRMWARE_FEATURE_RAID_BYPASS_ON_ENCRYPTED_NVME, 7845 .feature_status = pqi_firmware_feature_status, 7846 }, 7847 { 7848 .feature_name = "Firmware Triage", 7849 .feature_bit = PQI_FIRMWARE_FEATURE_FW_TRIAGE, 7850 .feature_status = pqi_ctrl_update_feature_flags, 7851 }, 7852 { 7853 .feature_name = "RPL Extended Formats 4 and 5", 7854 .feature_bit = PQI_FIRMWARE_FEATURE_RPL_EXTENDED_FORMAT_4_5, 7855 .feature_status = pqi_ctrl_update_feature_flags, 7856 }, 7857 { 7858 .feature_name = "Multi-LUN Target", 7859 .feature_bit = PQI_FIRMWARE_FEATURE_MULTI_LUN_DEVICE_SUPPORT, 7860 .feature_status = pqi_ctrl_update_feature_flags, 7861 }, 7862 }; 7863 7864 static void pqi_process_firmware_features( 7865 struct pqi_config_table_section_info *section_info) 7866 { 7867 int rc; 7868 struct pqi_ctrl_info *ctrl_info; 7869 struct pqi_config_table_firmware_features *firmware_features; 7870 void __iomem *firmware_features_iomem_addr; 7871 unsigned int i; 7872 unsigned int num_features_supported; 7873 7874 ctrl_info = section_info->ctrl_info; 7875 firmware_features = section_info->section; 7876 firmware_features_iomem_addr = section_info->section_iomem_addr; 7877 7878 for (i = 0, num_features_supported = 0; 7879 i < ARRAY_SIZE(pqi_firmware_features); i++) { 7880 if (pqi_is_firmware_feature_supported(firmware_features, 7881 pqi_firmware_features[i].feature_bit)) { 7882 pqi_firmware_features[i].supported = true; 7883 num_features_supported++; 7884 } else { 7885 pqi_firmware_feature_update(ctrl_info, 7886 &pqi_firmware_features[i]); 7887 } 7888 } 7889 7890 if (num_features_supported == 0) 7891 return; 7892 7893 for (i = 0; i < ARRAY_SIZE(pqi_firmware_features); i++) { 7894 if (!pqi_firmware_features[i].supported) 7895 continue; 7896 pqi_request_firmware_feature(firmware_features, 7897 pqi_firmware_features[i].feature_bit); 7898 } 7899 7900 rc = pqi_enable_firmware_features(ctrl_info, firmware_features, 7901 firmware_features_iomem_addr); 7902 if (rc) { 7903 dev_err(&ctrl_info->pci_dev->dev, 7904 "failed to enable firmware features in PQI configuration table\n"); 7905 for (i = 0; i < ARRAY_SIZE(pqi_firmware_features); i++) { 7906 if (!pqi_firmware_features[i].supported) 7907 continue; 7908 pqi_firmware_feature_update(ctrl_info, 7909 &pqi_firmware_features[i]); 7910 } 7911 return; 7912 } 7913 7914 for (i = 0; i < ARRAY_SIZE(pqi_firmware_features); i++) { 7915 if (!pqi_firmware_features[i].supported) 7916 continue; 7917 if (pqi_is_firmware_feature_enabled(firmware_features, 7918 firmware_features_iomem_addr, 7919 pqi_firmware_features[i].feature_bit)) { 7920 pqi_firmware_features[i].enabled = true; 7921 } 7922 pqi_firmware_feature_update(ctrl_info, 7923 &pqi_firmware_features[i]); 7924 } 7925 } 7926 7927 static void pqi_init_firmware_features(void) 7928 { 7929 unsigned int i; 7930 7931 for (i = 0; i < ARRAY_SIZE(pqi_firmware_features); i++) { 7932 pqi_firmware_features[i].supported = false; 7933 pqi_firmware_features[i].enabled = false; 7934 } 7935 } 7936 7937 static void pqi_process_firmware_features_section( 7938 struct pqi_config_table_section_info *section_info) 7939 { 7940 mutex_lock(&pqi_firmware_features_mutex); 7941 pqi_init_firmware_features(); 7942 pqi_process_firmware_features(section_info); 7943 mutex_unlock(&pqi_firmware_features_mutex); 7944 } 7945 7946 /* 7947 * Reset all controller settings that can be initialized during the processing 7948 * of the PQI Configuration Table. 7949 */ 7950 7951 static void pqi_ctrl_reset_config(struct pqi_ctrl_info *ctrl_info) 7952 { 7953 ctrl_info->heartbeat_counter = NULL; 7954 ctrl_info->soft_reset_status = NULL; 7955 ctrl_info->soft_reset_handshake_supported = false; 7956 ctrl_info->enable_r1_writes = false; 7957 ctrl_info->enable_r5_writes = false; 7958 ctrl_info->enable_r6_writes = false; 7959 ctrl_info->raid_iu_timeout_supported = false; 7960 ctrl_info->tmf_iu_timeout_supported = false; 7961 ctrl_info->firmware_triage_supported = false; 7962 ctrl_info->rpl_extended_format_4_5_supported = false; 7963 ctrl_info->multi_lun_device_supported = false; 7964 } 7965 7966 static int pqi_process_config_table(struct pqi_ctrl_info *ctrl_info) 7967 { 7968 u32 table_length; 7969 u32 section_offset; 7970 bool firmware_feature_section_present; 7971 void __iomem *table_iomem_addr; 7972 struct pqi_config_table *config_table; 7973 struct pqi_config_table_section_header *section; 7974 struct pqi_config_table_section_info section_info; 7975 struct pqi_config_table_section_info feature_section_info; 7976 7977 table_length = ctrl_info->config_table_length; 7978 if (table_length == 0) 7979 return 0; 7980 7981 config_table = kmalloc(table_length, GFP_KERNEL); 7982 if (!config_table) { 7983 dev_err(&ctrl_info->pci_dev->dev, 7984 "failed to allocate memory for PQI configuration table\n"); 7985 return -ENOMEM; 7986 } 7987 7988 /* 7989 * Copy the config table contents from I/O memory space into the 7990 * temporary buffer. 7991 */ 7992 table_iomem_addr = ctrl_info->iomem_base + ctrl_info->config_table_offset; 7993 memcpy_fromio(config_table, table_iomem_addr, table_length); 7994 7995 firmware_feature_section_present = false; 7996 section_info.ctrl_info = ctrl_info; 7997 section_offset = get_unaligned_le32(&config_table->first_section_offset); 7998 7999 while (section_offset) { 8000 section = (void *)config_table + section_offset; 8001 8002 section_info.section = section; 8003 section_info.section_offset = section_offset; 8004 section_info.section_iomem_addr = table_iomem_addr + section_offset; 8005 8006 switch (get_unaligned_le16(§ion->section_id)) { 8007 case PQI_CONFIG_TABLE_SECTION_FIRMWARE_FEATURES: 8008 firmware_feature_section_present = true; 8009 feature_section_info = section_info; 8010 break; 8011 case PQI_CONFIG_TABLE_SECTION_HEARTBEAT: 8012 if (pqi_disable_heartbeat) 8013 dev_warn(&ctrl_info->pci_dev->dev, 8014 "heartbeat disabled by module parameter\n"); 8015 else 8016 ctrl_info->heartbeat_counter = 8017 table_iomem_addr + 8018 section_offset + 8019 offsetof(struct pqi_config_table_heartbeat, 8020 heartbeat_counter); 8021 break; 8022 case PQI_CONFIG_TABLE_SECTION_SOFT_RESET: 8023 ctrl_info->soft_reset_status = 8024 table_iomem_addr + 8025 section_offset + 8026 offsetof(struct pqi_config_table_soft_reset, 8027 soft_reset_status); 8028 break; 8029 } 8030 8031 section_offset = get_unaligned_le16(§ion->next_section_offset); 8032 } 8033 8034 /* 8035 * We process the firmware feature section after all other sections 8036 * have been processed so that the feature bit callbacks can take 8037 * into account the settings configured by other sections. 8038 */ 8039 if (firmware_feature_section_present) 8040 pqi_process_firmware_features_section(&feature_section_info); 8041 8042 kfree(config_table); 8043 8044 return 0; 8045 } 8046 8047 /* Switches the controller from PQI mode back into SIS mode. */ 8048 8049 static int pqi_revert_to_sis_mode(struct pqi_ctrl_info *ctrl_info) 8050 { 8051 int rc; 8052 8053 pqi_change_irq_mode(ctrl_info, IRQ_MODE_NONE); 8054 rc = pqi_reset(ctrl_info); 8055 if (rc) 8056 return rc; 8057 rc = sis_reenable_sis_mode(ctrl_info); 8058 if (rc) { 8059 dev_err(&ctrl_info->pci_dev->dev, 8060 "re-enabling SIS mode failed with error %d\n", rc); 8061 return rc; 8062 } 8063 pqi_save_ctrl_mode(ctrl_info, SIS_MODE); 8064 8065 return 0; 8066 } 8067 8068 /* 8069 * If the controller isn't already in SIS mode, this function forces it into 8070 * SIS mode. 8071 */ 8072 8073 static int pqi_force_sis_mode(struct pqi_ctrl_info *ctrl_info) 8074 { 8075 if (!sis_is_firmware_running(ctrl_info)) 8076 return -ENXIO; 8077 8078 if (pqi_get_ctrl_mode(ctrl_info) == SIS_MODE) 8079 return 0; 8080 8081 if (sis_is_kernel_up(ctrl_info)) { 8082 pqi_save_ctrl_mode(ctrl_info, SIS_MODE); 8083 return 0; 8084 } 8085 8086 return pqi_revert_to_sis_mode(ctrl_info); 8087 } 8088 8089 static void pqi_perform_lockup_action(void) 8090 { 8091 switch (pqi_lockup_action) { 8092 case PANIC: 8093 panic("FATAL: Smart Family Controller lockup detected"); 8094 break; 8095 case REBOOT: 8096 emergency_restart(); 8097 break; 8098 case NONE: 8099 default: 8100 break; 8101 } 8102 } 8103 8104 static int pqi_ctrl_init(struct pqi_ctrl_info *ctrl_info) 8105 { 8106 int rc; 8107 u32 product_id; 8108 8109 if (reset_devices) { 8110 if (pqi_is_fw_triage_supported(ctrl_info)) { 8111 rc = sis_wait_for_fw_triage_completion(ctrl_info); 8112 if (rc) 8113 return rc; 8114 } 8115 sis_soft_reset(ctrl_info); 8116 ssleep(PQI_POST_RESET_DELAY_SECS); 8117 } else { 8118 rc = pqi_force_sis_mode(ctrl_info); 8119 if (rc) 8120 return rc; 8121 } 8122 8123 /* 8124 * Wait until the controller is ready to start accepting SIS 8125 * commands. 8126 */ 8127 rc = sis_wait_for_ctrl_ready(ctrl_info); 8128 if (rc) { 8129 if (reset_devices) { 8130 dev_err(&ctrl_info->pci_dev->dev, 8131 "kdump init failed with error %d\n", rc); 8132 pqi_lockup_action = REBOOT; 8133 pqi_perform_lockup_action(); 8134 } 8135 return rc; 8136 } 8137 8138 /* 8139 * Get the controller properties. This allows us to determine 8140 * whether or not it supports PQI mode. 8141 */ 8142 rc = sis_get_ctrl_properties(ctrl_info); 8143 if (rc) { 8144 dev_err(&ctrl_info->pci_dev->dev, 8145 "error obtaining controller properties\n"); 8146 return rc; 8147 } 8148 8149 rc = sis_get_pqi_capabilities(ctrl_info); 8150 if (rc) { 8151 dev_err(&ctrl_info->pci_dev->dev, 8152 "error obtaining controller capabilities\n"); 8153 return rc; 8154 } 8155 8156 product_id = sis_get_product_id(ctrl_info); 8157 ctrl_info->product_id = (u8)product_id; 8158 ctrl_info->product_revision = (u8)(product_id >> 8); 8159 8160 if (reset_devices) { 8161 if (ctrl_info->max_outstanding_requests > 8162 PQI_MAX_OUTSTANDING_REQUESTS_KDUMP) 8163 ctrl_info->max_outstanding_requests = 8164 PQI_MAX_OUTSTANDING_REQUESTS_KDUMP; 8165 } else { 8166 if (ctrl_info->max_outstanding_requests > 8167 PQI_MAX_OUTSTANDING_REQUESTS) 8168 ctrl_info->max_outstanding_requests = 8169 PQI_MAX_OUTSTANDING_REQUESTS; 8170 } 8171 8172 pqi_calculate_io_resources(ctrl_info); 8173 8174 rc = pqi_alloc_error_buffer(ctrl_info); 8175 if (rc) { 8176 dev_err(&ctrl_info->pci_dev->dev, 8177 "failed to allocate PQI error buffer\n"); 8178 return rc; 8179 } 8180 8181 /* 8182 * If the function we are about to call succeeds, the 8183 * controller will transition from legacy SIS mode 8184 * into PQI mode. 8185 */ 8186 rc = sis_init_base_struct_addr(ctrl_info); 8187 if (rc) { 8188 dev_err(&ctrl_info->pci_dev->dev, 8189 "error initializing PQI mode\n"); 8190 return rc; 8191 } 8192 8193 /* Wait for the controller to complete the SIS -> PQI transition. */ 8194 rc = pqi_wait_for_pqi_mode_ready(ctrl_info); 8195 if (rc) { 8196 dev_err(&ctrl_info->pci_dev->dev, 8197 "transition to PQI mode failed\n"); 8198 return rc; 8199 } 8200 8201 /* From here on, we are running in PQI mode. */ 8202 ctrl_info->pqi_mode_enabled = true; 8203 pqi_save_ctrl_mode(ctrl_info, PQI_MODE); 8204 8205 rc = pqi_alloc_admin_queues(ctrl_info); 8206 if (rc) { 8207 dev_err(&ctrl_info->pci_dev->dev, 8208 "failed to allocate admin queues\n"); 8209 return rc; 8210 } 8211 8212 rc = pqi_create_admin_queues(ctrl_info); 8213 if (rc) { 8214 dev_err(&ctrl_info->pci_dev->dev, 8215 "error creating admin queues\n"); 8216 return rc; 8217 } 8218 8219 rc = pqi_report_device_capability(ctrl_info); 8220 if (rc) { 8221 dev_err(&ctrl_info->pci_dev->dev, 8222 "obtaining device capability failed\n"); 8223 return rc; 8224 } 8225 8226 rc = pqi_validate_device_capability(ctrl_info); 8227 if (rc) 8228 return rc; 8229 8230 pqi_calculate_queue_resources(ctrl_info); 8231 8232 rc = pqi_enable_msix_interrupts(ctrl_info); 8233 if (rc) 8234 return rc; 8235 8236 if (ctrl_info->num_msix_vectors_enabled < ctrl_info->num_queue_groups) { 8237 ctrl_info->max_msix_vectors = 8238 ctrl_info->num_msix_vectors_enabled; 8239 pqi_calculate_queue_resources(ctrl_info); 8240 } 8241 8242 rc = pqi_alloc_io_resources(ctrl_info); 8243 if (rc) 8244 return rc; 8245 8246 rc = pqi_alloc_operational_queues(ctrl_info); 8247 if (rc) { 8248 dev_err(&ctrl_info->pci_dev->dev, 8249 "failed to allocate operational queues\n"); 8250 return rc; 8251 } 8252 8253 pqi_init_operational_queues(ctrl_info); 8254 8255 rc = pqi_create_queues(ctrl_info); 8256 if (rc) 8257 return rc; 8258 8259 rc = pqi_request_irqs(ctrl_info); 8260 if (rc) 8261 return rc; 8262 8263 pqi_change_irq_mode(ctrl_info, IRQ_MODE_MSIX); 8264 8265 ctrl_info->controller_online = true; 8266 8267 rc = pqi_process_config_table(ctrl_info); 8268 if (rc) 8269 return rc; 8270 8271 pqi_start_heartbeat_timer(ctrl_info); 8272 8273 if (ctrl_info->enable_r5_writes || ctrl_info->enable_r6_writes) { 8274 rc = pqi_get_advanced_raid_bypass_config(ctrl_info); 8275 if (rc) { /* Supported features not returned correctly. */ 8276 dev_err(&ctrl_info->pci_dev->dev, 8277 "error obtaining advanced RAID bypass configuration\n"); 8278 return rc; 8279 } 8280 ctrl_info->ciss_report_log_flags |= 8281 CISS_REPORT_LOG_FLAG_DRIVE_TYPE_MIX; 8282 } 8283 8284 rc = pqi_enable_events(ctrl_info); 8285 if (rc) { 8286 dev_err(&ctrl_info->pci_dev->dev, 8287 "error enabling events\n"); 8288 return rc; 8289 } 8290 8291 /* Register with the SCSI subsystem. */ 8292 rc = pqi_register_scsi(ctrl_info); 8293 if (rc) 8294 return rc; 8295 8296 rc = pqi_get_ctrl_product_details(ctrl_info); 8297 if (rc) { 8298 dev_err(&ctrl_info->pci_dev->dev, 8299 "error obtaining product details\n"); 8300 return rc; 8301 } 8302 8303 rc = pqi_get_ctrl_serial_number(ctrl_info); 8304 if (rc) { 8305 dev_err(&ctrl_info->pci_dev->dev, 8306 "error obtaining ctrl serial number\n"); 8307 return rc; 8308 } 8309 8310 rc = pqi_set_diag_rescan(ctrl_info); 8311 if (rc) { 8312 dev_err(&ctrl_info->pci_dev->dev, 8313 "error enabling multi-lun rescan\n"); 8314 return rc; 8315 } 8316 8317 rc = pqi_write_driver_version_to_host_wellness(ctrl_info); 8318 if (rc) { 8319 dev_err(&ctrl_info->pci_dev->dev, 8320 "error updating host wellness\n"); 8321 return rc; 8322 } 8323 8324 pqi_schedule_update_time_worker(ctrl_info); 8325 8326 pqi_scan_scsi_devices(ctrl_info); 8327 8328 return 0; 8329 } 8330 8331 static void pqi_reinit_queues(struct pqi_ctrl_info *ctrl_info) 8332 { 8333 unsigned int i; 8334 struct pqi_admin_queues *admin_queues; 8335 struct pqi_event_queue *event_queue; 8336 8337 admin_queues = &ctrl_info->admin_queues; 8338 admin_queues->iq_pi_copy = 0; 8339 admin_queues->oq_ci_copy = 0; 8340 writel(0, admin_queues->oq_pi); 8341 8342 for (i = 0; i < ctrl_info->num_queue_groups; i++) { 8343 ctrl_info->queue_groups[i].iq_pi_copy[RAID_PATH] = 0; 8344 ctrl_info->queue_groups[i].iq_pi_copy[AIO_PATH] = 0; 8345 ctrl_info->queue_groups[i].oq_ci_copy = 0; 8346 8347 writel(0, ctrl_info->queue_groups[i].iq_ci[RAID_PATH]); 8348 writel(0, ctrl_info->queue_groups[i].iq_ci[AIO_PATH]); 8349 writel(0, ctrl_info->queue_groups[i].oq_pi); 8350 } 8351 8352 event_queue = &ctrl_info->event_queue; 8353 writel(0, event_queue->oq_pi); 8354 event_queue->oq_ci_copy = 0; 8355 } 8356 8357 static int pqi_ctrl_init_resume(struct pqi_ctrl_info *ctrl_info) 8358 { 8359 int rc; 8360 8361 rc = pqi_force_sis_mode(ctrl_info); 8362 if (rc) 8363 return rc; 8364 8365 /* 8366 * Wait until the controller is ready to start accepting SIS 8367 * commands. 8368 */ 8369 rc = sis_wait_for_ctrl_ready_resume(ctrl_info); 8370 if (rc) 8371 return rc; 8372 8373 /* 8374 * Get the controller properties. This allows us to determine 8375 * whether or not it supports PQI mode. 8376 */ 8377 rc = sis_get_ctrl_properties(ctrl_info); 8378 if (rc) { 8379 dev_err(&ctrl_info->pci_dev->dev, 8380 "error obtaining controller properties\n"); 8381 return rc; 8382 } 8383 8384 rc = sis_get_pqi_capabilities(ctrl_info); 8385 if (rc) { 8386 dev_err(&ctrl_info->pci_dev->dev, 8387 "error obtaining controller capabilities\n"); 8388 return rc; 8389 } 8390 8391 /* 8392 * If the function we are about to call succeeds, the 8393 * controller will transition from legacy SIS mode 8394 * into PQI mode. 8395 */ 8396 rc = sis_init_base_struct_addr(ctrl_info); 8397 if (rc) { 8398 dev_err(&ctrl_info->pci_dev->dev, 8399 "error initializing PQI mode\n"); 8400 return rc; 8401 } 8402 8403 /* Wait for the controller to complete the SIS -> PQI transition. */ 8404 rc = pqi_wait_for_pqi_mode_ready(ctrl_info); 8405 if (rc) { 8406 dev_err(&ctrl_info->pci_dev->dev, 8407 "transition to PQI mode failed\n"); 8408 return rc; 8409 } 8410 8411 /* From here on, we are running in PQI mode. */ 8412 ctrl_info->pqi_mode_enabled = true; 8413 pqi_save_ctrl_mode(ctrl_info, PQI_MODE); 8414 8415 pqi_reinit_queues(ctrl_info); 8416 8417 rc = pqi_create_admin_queues(ctrl_info); 8418 if (rc) { 8419 dev_err(&ctrl_info->pci_dev->dev, 8420 "error creating admin queues\n"); 8421 return rc; 8422 } 8423 8424 rc = pqi_create_queues(ctrl_info); 8425 if (rc) 8426 return rc; 8427 8428 pqi_change_irq_mode(ctrl_info, IRQ_MODE_MSIX); 8429 8430 ctrl_info->controller_online = true; 8431 pqi_ctrl_unblock_requests(ctrl_info); 8432 8433 pqi_ctrl_reset_config(ctrl_info); 8434 8435 rc = pqi_process_config_table(ctrl_info); 8436 if (rc) 8437 return rc; 8438 8439 pqi_start_heartbeat_timer(ctrl_info); 8440 8441 if (ctrl_info->enable_r5_writes || ctrl_info->enable_r6_writes) { 8442 rc = pqi_get_advanced_raid_bypass_config(ctrl_info); 8443 if (rc) { 8444 dev_err(&ctrl_info->pci_dev->dev, 8445 "error obtaining advanced RAID bypass configuration\n"); 8446 return rc; 8447 } 8448 ctrl_info->ciss_report_log_flags |= 8449 CISS_REPORT_LOG_FLAG_DRIVE_TYPE_MIX; 8450 } 8451 8452 rc = pqi_enable_events(ctrl_info); 8453 if (rc) { 8454 dev_err(&ctrl_info->pci_dev->dev, 8455 "error enabling events\n"); 8456 return rc; 8457 } 8458 8459 rc = pqi_get_ctrl_product_details(ctrl_info); 8460 if (rc) { 8461 dev_err(&ctrl_info->pci_dev->dev, 8462 "error obtaining product details\n"); 8463 return rc; 8464 } 8465 8466 rc = pqi_set_diag_rescan(ctrl_info); 8467 if (rc) { 8468 dev_err(&ctrl_info->pci_dev->dev, 8469 "error enabling multi-lun rescan\n"); 8470 return rc; 8471 } 8472 8473 rc = pqi_write_driver_version_to_host_wellness(ctrl_info); 8474 if (rc) { 8475 dev_err(&ctrl_info->pci_dev->dev, 8476 "error updating host wellness\n"); 8477 return rc; 8478 } 8479 8480 if (pqi_ofa_in_progress(ctrl_info)) 8481 pqi_ctrl_unblock_scan(ctrl_info); 8482 8483 pqi_scan_scsi_devices(ctrl_info); 8484 8485 return 0; 8486 } 8487 8488 static inline int pqi_set_pcie_completion_timeout(struct pci_dev *pci_dev, u16 timeout) 8489 { 8490 int rc; 8491 8492 rc = pcie_capability_clear_and_set_word(pci_dev, PCI_EXP_DEVCTL2, 8493 PCI_EXP_DEVCTL2_COMP_TIMEOUT, timeout); 8494 8495 return pcibios_err_to_errno(rc); 8496 } 8497 8498 static int pqi_pci_init(struct pqi_ctrl_info *ctrl_info) 8499 { 8500 int rc; 8501 u64 mask; 8502 8503 rc = pci_enable_device(ctrl_info->pci_dev); 8504 if (rc) { 8505 dev_err(&ctrl_info->pci_dev->dev, 8506 "failed to enable PCI device\n"); 8507 return rc; 8508 } 8509 8510 if (sizeof(dma_addr_t) > 4) 8511 mask = DMA_BIT_MASK(64); 8512 else 8513 mask = DMA_BIT_MASK(32); 8514 8515 rc = dma_set_mask_and_coherent(&ctrl_info->pci_dev->dev, mask); 8516 if (rc) { 8517 dev_err(&ctrl_info->pci_dev->dev, "failed to set DMA mask\n"); 8518 goto disable_device; 8519 } 8520 8521 rc = pci_request_regions(ctrl_info->pci_dev, DRIVER_NAME_SHORT); 8522 if (rc) { 8523 dev_err(&ctrl_info->pci_dev->dev, 8524 "failed to obtain PCI resources\n"); 8525 goto disable_device; 8526 } 8527 8528 ctrl_info->iomem_base = ioremap(pci_resource_start( 8529 ctrl_info->pci_dev, 0), 8530 sizeof(struct pqi_ctrl_registers)); 8531 if (!ctrl_info->iomem_base) { 8532 dev_err(&ctrl_info->pci_dev->dev, 8533 "failed to map memory for controller registers\n"); 8534 rc = -ENOMEM; 8535 goto release_regions; 8536 } 8537 8538 #define PCI_EXP_COMP_TIMEOUT_65_TO_210_MS 0x6 8539 8540 /* Increase the PCIe completion timeout. */ 8541 rc = pqi_set_pcie_completion_timeout(ctrl_info->pci_dev, 8542 PCI_EXP_COMP_TIMEOUT_65_TO_210_MS); 8543 if (rc) { 8544 dev_err(&ctrl_info->pci_dev->dev, 8545 "failed to set PCIe completion timeout\n"); 8546 goto release_regions; 8547 } 8548 8549 /* Enable bus mastering. */ 8550 pci_set_master(ctrl_info->pci_dev); 8551 8552 ctrl_info->registers = ctrl_info->iomem_base; 8553 ctrl_info->pqi_registers = &ctrl_info->registers->pqi_registers; 8554 8555 pci_set_drvdata(ctrl_info->pci_dev, ctrl_info); 8556 8557 return 0; 8558 8559 release_regions: 8560 pci_release_regions(ctrl_info->pci_dev); 8561 disable_device: 8562 pci_disable_device(ctrl_info->pci_dev); 8563 8564 return rc; 8565 } 8566 8567 static void pqi_cleanup_pci_init(struct pqi_ctrl_info *ctrl_info) 8568 { 8569 iounmap(ctrl_info->iomem_base); 8570 pci_release_regions(ctrl_info->pci_dev); 8571 if (pci_is_enabled(ctrl_info->pci_dev)) 8572 pci_disable_device(ctrl_info->pci_dev); 8573 pci_set_drvdata(ctrl_info->pci_dev, NULL); 8574 } 8575 8576 static struct pqi_ctrl_info *pqi_alloc_ctrl_info(int numa_node) 8577 { 8578 struct pqi_ctrl_info *ctrl_info; 8579 8580 ctrl_info = kzalloc_node(sizeof(struct pqi_ctrl_info), 8581 GFP_KERNEL, numa_node); 8582 if (!ctrl_info) 8583 return NULL; 8584 8585 mutex_init(&ctrl_info->scan_mutex); 8586 mutex_init(&ctrl_info->lun_reset_mutex); 8587 mutex_init(&ctrl_info->ofa_mutex); 8588 8589 INIT_LIST_HEAD(&ctrl_info->scsi_device_list); 8590 spin_lock_init(&ctrl_info->scsi_device_list_lock); 8591 8592 INIT_WORK(&ctrl_info->event_work, pqi_event_worker); 8593 atomic_set(&ctrl_info->num_interrupts, 0); 8594 8595 INIT_DELAYED_WORK(&ctrl_info->rescan_work, pqi_rescan_worker); 8596 INIT_DELAYED_WORK(&ctrl_info->update_time_work, pqi_update_time_worker); 8597 8598 timer_setup(&ctrl_info->heartbeat_timer, pqi_heartbeat_timer_handler, 0); 8599 INIT_WORK(&ctrl_info->ctrl_offline_work, pqi_ctrl_offline_worker); 8600 8601 INIT_WORK(&ctrl_info->ofa_memory_alloc_work, pqi_ofa_memory_alloc_worker); 8602 INIT_WORK(&ctrl_info->ofa_quiesce_work, pqi_ofa_quiesce_worker); 8603 8604 sema_init(&ctrl_info->sync_request_sem, 8605 PQI_RESERVED_IO_SLOTS_SYNCHRONOUS_REQUESTS); 8606 init_waitqueue_head(&ctrl_info->block_requests_wait); 8607 8608 ctrl_info->ctrl_id = atomic_inc_return(&pqi_controller_count) - 1; 8609 ctrl_info->irq_mode = IRQ_MODE_NONE; 8610 ctrl_info->max_msix_vectors = PQI_MAX_MSIX_VECTORS; 8611 8612 ctrl_info->ciss_report_log_flags = CISS_REPORT_LOG_FLAG_UNIQUE_LUN_ID; 8613 ctrl_info->max_transfer_encrypted_sas_sata = 8614 PQI_DEFAULT_MAX_TRANSFER_ENCRYPTED_SAS_SATA; 8615 ctrl_info->max_transfer_encrypted_nvme = 8616 PQI_DEFAULT_MAX_TRANSFER_ENCRYPTED_NVME; 8617 ctrl_info->max_write_raid_5_6 = PQI_DEFAULT_MAX_WRITE_RAID_5_6; 8618 ctrl_info->max_write_raid_1_10_2drive = ~0; 8619 ctrl_info->max_write_raid_1_10_3drive = ~0; 8620 ctrl_info->disable_managed_interrupts = pqi_disable_managed_interrupts; 8621 8622 return ctrl_info; 8623 } 8624 8625 static inline void pqi_free_ctrl_info(struct pqi_ctrl_info *ctrl_info) 8626 { 8627 kfree(ctrl_info); 8628 } 8629 8630 static void pqi_free_interrupts(struct pqi_ctrl_info *ctrl_info) 8631 { 8632 pqi_free_irqs(ctrl_info); 8633 pqi_disable_msix_interrupts(ctrl_info); 8634 } 8635 8636 static void pqi_free_ctrl_resources(struct pqi_ctrl_info *ctrl_info) 8637 { 8638 pqi_free_interrupts(ctrl_info); 8639 if (ctrl_info->queue_memory_base) 8640 dma_free_coherent(&ctrl_info->pci_dev->dev, 8641 ctrl_info->queue_memory_length, 8642 ctrl_info->queue_memory_base, 8643 ctrl_info->queue_memory_base_dma_handle); 8644 if (ctrl_info->admin_queue_memory_base) 8645 dma_free_coherent(&ctrl_info->pci_dev->dev, 8646 ctrl_info->admin_queue_memory_length, 8647 ctrl_info->admin_queue_memory_base, 8648 ctrl_info->admin_queue_memory_base_dma_handle); 8649 pqi_free_all_io_requests(ctrl_info); 8650 if (ctrl_info->error_buffer) 8651 dma_free_coherent(&ctrl_info->pci_dev->dev, 8652 ctrl_info->error_buffer_length, 8653 ctrl_info->error_buffer, 8654 ctrl_info->error_buffer_dma_handle); 8655 if (ctrl_info->iomem_base) 8656 pqi_cleanup_pci_init(ctrl_info); 8657 pqi_free_ctrl_info(ctrl_info); 8658 } 8659 8660 static void pqi_remove_ctrl(struct pqi_ctrl_info *ctrl_info) 8661 { 8662 ctrl_info->controller_online = false; 8663 pqi_stop_heartbeat_timer(ctrl_info); 8664 pqi_ctrl_block_requests(ctrl_info); 8665 pqi_cancel_rescan_worker(ctrl_info); 8666 pqi_cancel_update_time_worker(ctrl_info); 8667 if (ctrl_info->ctrl_removal_state == PQI_CTRL_SURPRISE_REMOVAL) { 8668 pqi_fail_all_outstanding_requests(ctrl_info); 8669 ctrl_info->pqi_mode_enabled = false; 8670 } 8671 pqi_unregister_scsi(ctrl_info); 8672 if (ctrl_info->pqi_mode_enabled) 8673 pqi_revert_to_sis_mode(ctrl_info); 8674 pqi_free_ctrl_resources(ctrl_info); 8675 } 8676 8677 static void pqi_ofa_ctrl_quiesce(struct pqi_ctrl_info *ctrl_info) 8678 { 8679 pqi_ctrl_block_scan(ctrl_info); 8680 pqi_scsi_block_requests(ctrl_info); 8681 pqi_ctrl_block_device_reset(ctrl_info); 8682 pqi_ctrl_block_requests(ctrl_info); 8683 pqi_ctrl_wait_until_quiesced(ctrl_info); 8684 pqi_stop_heartbeat_timer(ctrl_info); 8685 } 8686 8687 static void pqi_ofa_ctrl_unquiesce(struct pqi_ctrl_info *ctrl_info) 8688 { 8689 pqi_start_heartbeat_timer(ctrl_info); 8690 pqi_ctrl_unblock_requests(ctrl_info); 8691 pqi_ctrl_unblock_device_reset(ctrl_info); 8692 pqi_scsi_unblock_requests(ctrl_info); 8693 pqi_ctrl_unblock_scan(ctrl_info); 8694 } 8695 8696 static int pqi_ofa_alloc_mem(struct pqi_ctrl_info *ctrl_info, u32 total_size, u32 chunk_size) 8697 { 8698 int i; 8699 u32 sg_count; 8700 struct device *dev; 8701 struct pqi_ofa_memory *ofap; 8702 struct pqi_sg_descriptor *mem_descriptor; 8703 dma_addr_t dma_handle; 8704 8705 ofap = ctrl_info->pqi_ofa_mem_virt_addr; 8706 8707 sg_count = DIV_ROUND_UP(total_size, chunk_size); 8708 if (sg_count == 0 || sg_count > PQI_OFA_MAX_SG_DESCRIPTORS) 8709 goto out; 8710 8711 ctrl_info->pqi_ofa_chunk_virt_addr = kmalloc_array(sg_count, sizeof(void *), GFP_KERNEL); 8712 if (!ctrl_info->pqi_ofa_chunk_virt_addr) 8713 goto out; 8714 8715 dev = &ctrl_info->pci_dev->dev; 8716 8717 for (i = 0; i < sg_count; i++) { 8718 ctrl_info->pqi_ofa_chunk_virt_addr[i] = 8719 dma_alloc_coherent(dev, chunk_size, &dma_handle, GFP_KERNEL); 8720 if (!ctrl_info->pqi_ofa_chunk_virt_addr[i]) 8721 goto out_free_chunks; 8722 mem_descriptor = &ofap->sg_descriptor[i]; 8723 put_unaligned_le64((u64)dma_handle, &mem_descriptor->address); 8724 put_unaligned_le32(chunk_size, &mem_descriptor->length); 8725 } 8726 8727 put_unaligned_le32(CISS_SG_LAST, &mem_descriptor->flags); 8728 put_unaligned_le16(sg_count, &ofap->num_memory_descriptors); 8729 put_unaligned_le32(sg_count * chunk_size, &ofap->bytes_allocated); 8730 8731 return 0; 8732 8733 out_free_chunks: 8734 while (--i >= 0) { 8735 mem_descriptor = &ofap->sg_descriptor[i]; 8736 dma_free_coherent(dev, chunk_size, 8737 ctrl_info->pqi_ofa_chunk_virt_addr[i], 8738 get_unaligned_le64(&mem_descriptor->address)); 8739 } 8740 kfree(ctrl_info->pqi_ofa_chunk_virt_addr); 8741 8742 out: 8743 return -ENOMEM; 8744 } 8745 8746 static int pqi_ofa_alloc_host_buffer(struct pqi_ctrl_info *ctrl_info) 8747 { 8748 u32 total_size; 8749 u32 chunk_size; 8750 u32 min_chunk_size; 8751 8752 if (ctrl_info->ofa_bytes_requested == 0) 8753 return 0; 8754 8755 total_size = PAGE_ALIGN(ctrl_info->ofa_bytes_requested); 8756 min_chunk_size = DIV_ROUND_UP(total_size, PQI_OFA_MAX_SG_DESCRIPTORS); 8757 min_chunk_size = PAGE_ALIGN(min_chunk_size); 8758 8759 for (chunk_size = total_size; chunk_size >= min_chunk_size;) { 8760 if (pqi_ofa_alloc_mem(ctrl_info, total_size, chunk_size) == 0) 8761 return 0; 8762 chunk_size /= 2; 8763 chunk_size = PAGE_ALIGN(chunk_size); 8764 } 8765 8766 return -ENOMEM; 8767 } 8768 8769 static void pqi_ofa_setup_host_buffer(struct pqi_ctrl_info *ctrl_info) 8770 { 8771 struct device *dev; 8772 struct pqi_ofa_memory *ofap; 8773 8774 dev = &ctrl_info->pci_dev->dev; 8775 8776 ofap = dma_alloc_coherent(dev, sizeof(*ofap), 8777 &ctrl_info->pqi_ofa_mem_dma_handle, GFP_KERNEL); 8778 if (!ofap) 8779 return; 8780 8781 ctrl_info->pqi_ofa_mem_virt_addr = ofap; 8782 8783 if (pqi_ofa_alloc_host_buffer(ctrl_info) < 0) { 8784 dev_err(dev, 8785 "failed to allocate host buffer for Online Firmware Activation\n"); 8786 dma_free_coherent(dev, sizeof(*ofap), ofap, ctrl_info->pqi_ofa_mem_dma_handle); 8787 ctrl_info->pqi_ofa_mem_virt_addr = NULL; 8788 return; 8789 } 8790 8791 put_unaligned_le16(PQI_OFA_VERSION, &ofap->version); 8792 memcpy(&ofap->signature, PQI_OFA_SIGNATURE, sizeof(ofap->signature)); 8793 } 8794 8795 static void pqi_ofa_free_host_buffer(struct pqi_ctrl_info *ctrl_info) 8796 { 8797 unsigned int i; 8798 struct device *dev; 8799 struct pqi_ofa_memory *ofap; 8800 struct pqi_sg_descriptor *mem_descriptor; 8801 unsigned int num_memory_descriptors; 8802 8803 ofap = ctrl_info->pqi_ofa_mem_virt_addr; 8804 if (!ofap) 8805 return; 8806 8807 dev = &ctrl_info->pci_dev->dev; 8808 8809 if (get_unaligned_le32(&ofap->bytes_allocated) == 0) 8810 goto out; 8811 8812 mem_descriptor = ofap->sg_descriptor; 8813 num_memory_descriptors = 8814 get_unaligned_le16(&ofap->num_memory_descriptors); 8815 8816 for (i = 0; i < num_memory_descriptors; i++) { 8817 dma_free_coherent(dev, 8818 get_unaligned_le32(&mem_descriptor[i].length), 8819 ctrl_info->pqi_ofa_chunk_virt_addr[i], 8820 get_unaligned_le64(&mem_descriptor[i].address)); 8821 } 8822 kfree(ctrl_info->pqi_ofa_chunk_virt_addr); 8823 8824 out: 8825 dma_free_coherent(dev, sizeof(*ofap), ofap, 8826 ctrl_info->pqi_ofa_mem_dma_handle); 8827 ctrl_info->pqi_ofa_mem_virt_addr = NULL; 8828 } 8829 8830 static int pqi_ofa_host_memory_update(struct pqi_ctrl_info *ctrl_info) 8831 { 8832 u32 buffer_length; 8833 struct pqi_vendor_general_request request; 8834 struct pqi_ofa_memory *ofap; 8835 8836 memset(&request, 0, sizeof(request)); 8837 8838 request.header.iu_type = PQI_REQUEST_IU_VENDOR_GENERAL; 8839 put_unaligned_le16(sizeof(request) - PQI_REQUEST_HEADER_LENGTH, 8840 &request.header.iu_length); 8841 put_unaligned_le16(PQI_VENDOR_GENERAL_HOST_MEMORY_UPDATE, 8842 &request.function_code); 8843 8844 ofap = ctrl_info->pqi_ofa_mem_virt_addr; 8845 8846 if (ofap) { 8847 buffer_length = offsetof(struct pqi_ofa_memory, sg_descriptor) + 8848 get_unaligned_le16(&ofap->num_memory_descriptors) * 8849 sizeof(struct pqi_sg_descriptor); 8850 8851 put_unaligned_le64((u64)ctrl_info->pqi_ofa_mem_dma_handle, 8852 &request.data.ofa_memory_allocation.buffer_address); 8853 put_unaligned_le32(buffer_length, 8854 &request.data.ofa_memory_allocation.buffer_length); 8855 } 8856 8857 return pqi_submit_raid_request_synchronous(ctrl_info, &request.header, 0, NULL); 8858 } 8859 8860 static int pqi_ofa_ctrl_restart(struct pqi_ctrl_info *ctrl_info, unsigned int delay_secs) 8861 { 8862 ssleep(delay_secs); 8863 8864 return pqi_ctrl_init_resume(ctrl_info); 8865 } 8866 8867 static struct pqi_raid_error_info pqi_ctrl_offline_raid_error_info = { 8868 .data_out_result = PQI_DATA_IN_OUT_HARDWARE_ERROR, 8869 .status = SAM_STAT_CHECK_CONDITION, 8870 }; 8871 8872 static void pqi_fail_all_outstanding_requests(struct pqi_ctrl_info *ctrl_info) 8873 { 8874 unsigned int i; 8875 struct pqi_io_request *io_request; 8876 struct scsi_cmnd *scmd; 8877 struct scsi_device *sdev; 8878 8879 for (i = 0; i < ctrl_info->max_io_slots; i++) { 8880 io_request = &ctrl_info->io_request_pool[i]; 8881 if (atomic_read(&io_request->refcount) == 0) 8882 continue; 8883 8884 scmd = io_request->scmd; 8885 if (scmd) { 8886 sdev = scmd->device; 8887 if (!sdev || !scsi_device_online(sdev)) { 8888 pqi_free_io_request(io_request); 8889 continue; 8890 } else { 8891 set_host_byte(scmd, DID_NO_CONNECT); 8892 } 8893 } else { 8894 io_request->status = -ENXIO; 8895 io_request->error_info = 8896 &pqi_ctrl_offline_raid_error_info; 8897 } 8898 8899 io_request->io_complete_callback(io_request, 8900 io_request->context); 8901 } 8902 } 8903 8904 static void pqi_take_ctrl_offline_deferred(struct pqi_ctrl_info *ctrl_info) 8905 { 8906 pqi_perform_lockup_action(); 8907 pqi_stop_heartbeat_timer(ctrl_info); 8908 pqi_free_interrupts(ctrl_info); 8909 pqi_cancel_rescan_worker(ctrl_info); 8910 pqi_cancel_update_time_worker(ctrl_info); 8911 pqi_ctrl_wait_until_quiesced(ctrl_info); 8912 pqi_fail_all_outstanding_requests(ctrl_info); 8913 pqi_ctrl_unblock_requests(ctrl_info); 8914 } 8915 8916 static void pqi_ctrl_offline_worker(struct work_struct *work) 8917 { 8918 struct pqi_ctrl_info *ctrl_info; 8919 8920 ctrl_info = container_of(work, struct pqi_ctrl_info, ctrl_offline_work); 8921 pqi_take_ctrl_offline_deferred(ctrl_info); 8922 } 8923 8924 static void pqi_take_ctrl_offline(struct pqi_ctrl_info *ctrl_info, 8925 enum pqi_ctrl_shutdown_reason ctrl_shutdown_reason) 8926 { 8927 if (!ctrl_info->controller_online) 8928 return; 8929 8930 ctrl_info->controller_online = false; 8931 ctrl_info->pqi_mode_enabled = false; 8932 pqi_ctrl_block_requests(ctrl_info); 8933 if (!pqi_disable_ctrl_shutdown) 8934 sis_shutdown_ctrl(ctrl_info, ctrl_shutdown_reason); 8935 pci_disable_device(ctrl_info->pci_dev); 8936 dev_err(&ctrl_info->pci_dev->dev, "controller offline\n"); 8937 schedule_work(&ctrl_info->ctrl_offline_work); 8938 } 8939 8940 static void pqi_print_ctrl_info(struct pci_dev *pci_dev, 8941 const struct pci_device_id *id) 8942 { 8943 char *ctrl_description; 8944 8945 if (id->driver_data) 8946 ctrl_description = (char *)id->driver_data; 8947 else 8948 ctrl_description = "Microchip Smart Family Controller"; 8949 8950 dev_info(&pci_dev->dev, "%s found\n", ctrl_description); 8951 } 8952 8953 static int pqi_pci_probe(struct pci_dev *pci_dev, 8954 const struct pci_device_id *id) 8955 { 8956 int rc; 8957 int node; 8958 struct pqi_ctrl_info *ctrl_info; 8959 8960 pqi_print_ctrl_info(pci_dev, id); 8961 8962 if (pqi_disable_device_id_wildcards && 8963 id->subvendor == PCI_ANY_ID && 8964 id->subdevice == PCI_ANY_ID) { 8965 dev_warn(&pci_dev->dev, 8966 "controller not probed because device ID wildcards are disabled\n"); 8967 return -ENODEV; 8968 } 8969 8970 if (id->subvendor == PCI_ANY_ID || id->subdevice == PCI_ANY_ID) 8971 dev_warn(&pci_dev->dev, 8972 "controller device ID matched using wildcards\n"); 8973 8974 node = dev_to_node(&pci_dev->dev); 8975 if (node == NUMA_NO_NODE) { 8976 node = cpu_to_node(0); 8977 if (node == NUMA_NO_NODE) 8978 node = 0; 8979 set_dev_node(&pci_dev->dev, node); 8980 } 8981 8982 ctrl_info = pqi_alloc_ctrl_info(node); 8983 if (!ctrl_info) { 8984 dev_err(&pci_dev->dev, 8985 "failed to allocate controller info block\n"); 8986 return -ENOMEM; 8987 } 8988 8989 ctrl_info->pci_dev = pci_dev; 8990 8991 rc = pqi_pci_init(ctrl_info); 8992 if (rc) 8993 goto error; 8994 8995 rc = pqi_ctrl_init(ctrl_info); 8996 if (rc) 8997 goto error; 8998 8999 return 0; 9000 9001 error: 9002 pqi_remove_ctrl(ctrl_info); 9003 9004 return rc; 9005 } 9006 9007 static void pqi_pci_remove(struct pci_dev *pci_dev) 9008 { 9009 struct pqi_ctrl_info *ctrl_info; 9010 u16 vendor_id; 9011 9012 ctrl_info = pci_get_drvdata(pci_dev); 9013 if (!ctrl_info) 9014 return; 9015 9016 pci_read_config_word(ctrl_info->pci_dev, PCI_SUBSYSTEM_VENDOR_ID, &vendor_id); 9017 if (vendor_id == 0xffff) 9018 ctrl_info->ctrl_removal_state = PQI_CTRL_SURPRISE_REMOVAL; 9019 else 9020 ctrl_info->ctrl_removal_state = PQI_CTRL_GRACEFUL_REMOVAL; 9021 9022 pqi_remove_ctrl(ctrl_info); 9023 } 9024 9025 static void pqi_crash_if_pending_command(struct pqi_ctrl_info *ctrl_info) 9026 { 9027 unsigned int i; 9028 struct pqi_io_request *io_request; 9029 struct scsi_cmnd *scmd; 9030 9031 for (i = 0; i < ctrl_info->max_io_slots; i++) { 9032 io_request = &ctrl_info->io_request_pool[i]; 9033 if (atomic_read(&io_request->refcount) == 0) 9034 continue; 9035 scmd = io_request->scmd; 9036 WARN_ON(scmd != NULL); /* IO command from SML */ 9037 WARN_ON(scmd == NULL); /* Non-IO cmd or driver initiated*/ 9038 } 9039 } 9040 9041 static void pqi_shutdown(struct pci_dev *pci_dev) 9042 { 9043 int rc; 9044 struct pqi_ctrl_info *ctrl_info; 9045 enum bmic_flush_cache_shutdown_event shutdown_event; 9046 9047 ctrl_info = pci_get_drvdata(pci_dev); 9048 if (!ctrl_info) { 9049 dev_err(&pci_dev->dev, 9050 "cache could not be flushed\n"); 9051 return; 9052 } 9053 9054 pqi_wait_until_ofa_finished(ctrl_info); 9055 9056 pqi_scsi_block_requests(ctrl_info); 9057 pqi_ctrl_block_device_reset(ctrl_info); 9058 pqi_ctrl_block_requests(ctrl_info); 9059 pqi_ctrl_wait_until_quiesced(ctrl_info); 9060 9061 if (system_state == SYSTEM_RESTART) 9062 shutdown_event = RESTART; 9063 else 9064 shutdown_event = SHUTDOWN; 9065 9066 /* 9067 * Write all data in the controller's battery-backed cache to 9068 * storage. 9069 */ 9070 rc = pqi_flush_cache(ctrl_info, shutdown_event); 9071 if (rc) 9072 dev_err(&pci_dev->dev, 9073 "unable to flush controller cache\n"); 9074 9075 pqi_crash_if_pending_command(ctrl_info); 9076 pqi_reset(ctrl_info); 9077 } 9078 9079 static void pqi_process_lockup_action_param(void) 9080 { 9081 unsigned int i; 9082 9083 if (!pqi_lockup_action_param) 9084 return; 9085 9086 for (i = 0; i < ARRAY_SIZE(pqi_lockup_actions); i++) { 9087 if (strcmp(pqi_lockup_action_param, 9088 pqi_lockup_actions[i].name) == 0) { 9089 pqi_lockup_action = pqi_lockup_actions[i].action; 9090 return; 9091 } 9092 } 9093 9094 pr_warn("%s: invalid lockup action setting \"%s\" - supported settings: none, reboot, panic\n", 9095 DRIVER_NAME_SHORT, pqi_lockup_action_param); 9096 } 9097 9098 #define PQI_CTRL_READY_TIMEOUT_PARAM_MIN_SECS 30 9099 #define PQI_CTRL_READY_TIMEOUT_PARAM_MAX_SECS (30 * 60) 9100 9101 static void pqi_process_ctrl_ready_timeout_param(void) 9102 { 9103 if (pqi_ctrl_ready_timeout_secs == 0) 9104 return; 9105 9106 if (pqi_ctrl_ready_timeout_secs < PQI_CTRL_READY_TIMEOUT_PARAM_MIN_SECS) { 9107 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", 9108 DRIVER_NAME_SHORT, pqi_ctrl_ready_timeout_secs, PQI_CTRL_READY_TIMEOUT_PARAM_MIN_SECS, PQI_CTRL_READY_TIMEOUT_PARAM_MIN_SECS); 9109 pqi_ctrl_ready_timeout_secs = PQI_CTRL_READY_TIMEOUT_PARAM_MIN_SECS; 9110 } else if (pqi_ctrl_ready_timeout_secs > PQI_CTRL_READY_TIMEOUT_PARAM_MAX_SECS) { 9111 pr_warn("%s: ctrl_ready_timeout parm of %u seconds is greater than maximum timeout of %d seconds - setting timeout to %d seconds\n", 9112 DRIVER_NAME_SHORT, pqi_ctrl_ready_timeout_secs, PQI_CTRL_READY_TIMEOUT_PARAM_MAX_SECS, PQI_CTRL_READY_TIMEOUT_PARAM_MAX_SECS); 9113 pqi_ctrl_ready_timeout_secs = PQI_CTRL_READY_TIMEOUT_PARAM_MAX_SECS; 9114 } 9115 9116 sis_ctrl_ready_timeout_secs = pqi_ctrl_ready_timeout_secs; 9117 } 9118 9119 static void pqi_process_module_params(void) 9120 { 9121 pqi_process_lockup_action_param(); 9122 pqi_process_ctrl_ready_timeout_param(); 9123 } 9124 9125 #if defined(CONFIG_PM) 9126 9127 static inline enum bmic_flush_cache_shutdown_event pqi_get_flush_cache_shutdown_event(struct pci_dev *pci_dev) 9128 { 9129 if (pci_dev->subsystem_vendor == PCI_VENDOR_ID_ADAPTEC2 && pci_dev->subsystem_device == 0x1304) 9130 return RESTART; 9131 9132 return SUSPEND; 9133 } 9134 9135 static int pqi_suspend_or_freeze(struct device *dev, bool suspend) 9136 { 9137 struct pci_dev *pci_dev; 9138 struct pqi_ctrl_info *ctrl_info; 9139 9140 pci_dev = to_pci_dev(dev); 9141 ctrl_info = pci_get_drvdata(pci_dev); 9142 9143 pqi_wait_until_ofa_finished(ctrl_info); 9144 9145 pqi_ctrl_block_scan(ctrl_info); 9146 pqi_scsi_block_requests(ctrl_info); 9147 pqi_ctrl_block_device_reset(ctrl_info); 9148 pqi_ctrl_block_requests(ctrl_info); 9149 pqi_ctrl_wait_until_quiesced(ctrl_info); 9150 9151 if (suspend) { 9152 enum bmic_flush_cache_shutdown_event shutdown_event; 9153 9154 shutdown_event = pqi_get_flush_cache_shutdown_event(pci_dev); 9155 pqi_flush_cache(ctrl_info, shutdown_event); 9156 } 9157 9158 pqi_stop_heartbeat_timer(ctrl_info); 9159 pqi_crash_if_pending_command(ctrl_info); 9160 pqi_free_irqs(ctrl_info); 9161 9162 ctrl_info->controller_online = false; 9163 ctrl_info->pqi_mode_enabled = false; 9164 9165 return 0; 9166 } 9167 9168 static __maybe_unused int pqi_suspend(struct device *dev) 9169 { 9170 return pqi_suspend_or_freeze(dev, true); 9171 } 9172 9173 static int pqi_resume_or_restore(struct device *dev) 9174 { 9175 int rc; 9176 struct pci_dev *pci_dev; 9177 struct pqi_ctrl_info *ctrl_info; 9178 9179 pci_dev = to_pci_dev(dev); 9180 ctrl_info = pci_get_drvdata(pci_dev); 9181 9182 rc = pqi_request_irqs(ctrl_info); 9183 if (rc) 9184 return rc; 9185 9186 pqi_ctrl_unblock_device_reset(ctrl_info); 9187 pqi_ctrl_unblock_requests(ctrl_info); 9188 pqi_scsi_unblock_requests(ctrl_info); 9189 pqi_ctrl_unblock_scan(ctrl_info); 9190 9191 ssleep(PQI_POST_RESET_DELAY_SECS); 9192 9193 return pqi_ctrl_init_resume(ctrl_info); 9194 } 9195 9196 static int pqi_freeze(struct device *dev) 9197 { 9198 return pqi_suspend_or_freeze(dev, false); 9199 } 9200 9201 static int pqi_thaw(struct device *dev) 9202 { 9203 int rc; 9204 struct pci_dev *pci_dev; 9205 struct pqi_ctrl_info *ctrl_info; 9206 9207 pci_dev = to_pci_dev(dev); 9208 ctrl_info = pci_get_drvdata(pci_dev); 9209 9210 rc = pqi_request_irqs(ctrl_info); 9211 if (rc) 9212 return rc; 9213 9214 ctrl_info->controller_online = true; 9215 ctrl_info->pqi_mode_enabled = true; 9216 9217 pqi_ctrl_unblock_device_reset(ctrl_info); 9218 pqi_ctrl_unblock_requests(ctrl_info); 9219 pqi_scsi_unblock_requests(ctrl_info); 9220 pqi_ctrl_unblock_scan(ctrl_info); 9221 9222 return 0; 9223 } 9224 9225 static int pqi_poweroff(struct device *dev) 9226 { 9227 struct pci_dev *pci_dev; 9228 struct pqi_ctrl_info *ctrl_info; 9229 enum bmic_flush_cache_shutdown_event shutdown_event; 9230 9231 pci_dev = to_pci_dev(dev); 9232 ctrl_info = pci_get_drvdata(pci_dev); 9233 9234 shutdown_event = pqi_get_flush_cache_shutdown_event(pci_dev); 9235 pqi_flush_cache(ctrl_info, shutdown_event); 9236 9237 return 0; 9238 } 9239 9240 static const struct dev_pm_ops pqi_pm_ops = { 9241 .suspend = pqi_suspend, 9242 .resume = pqi_resume_or_restore, 9243 .freeze = pqi_freeze, 9244 .thaw = pqi_thaw, 9245 .poweroff = pqi_poweroff, 9246 .restore = pqi_resume_or_restore, 9247 }; 9248 9249 #endif /* CONFIG_PM */ 9250 9251 /* Define the PCI IDs for the controllers that we support. */ 9252 static const struct pci_device_id pqi_pci_id_table[] = { 9253 { 9254 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 9255 0x105b, 0x1211) 9256 }, 9257 { 9258 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 9259 0x105b, 0x1321) 9260 }, 9261 { 9262 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 9263 0x152d, 0x8a22) 9264 }, 9265 { 9266 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 9267 0x152d, 0x8a23) 9268 }, 9269 { 9270 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 9271 0x152d, 0x8a24) 9272 }, 9273 { 9274 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 9275 0x152d, 0x8a36) 9276 }, 9277 { 9278 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 9279 0x152d, 0x8a37) 9280 }, 9281 { 9282 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 9283 0x193d, 0x1104) 9284 }, 9285 { 9286 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 9287 0x193d, 0x1105) 9288 }, 9289 { 9290 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 9291 0x193d, 0x1106) 9292 }, 9293 { 9294 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 9295 0x193d, 0x1107) 9296 }, 9297 { 9298 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 9299 0x193d, 0x1108) 9300 }, 9301 { 9302 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 9303 0x193d, 0x1109) 9304 }, 9305 { 9306 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 9307 0x193d, 0x8460) 9308 }, 9309 { 9310 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 9311 0x193d, 0x8461) 9312 }, 9313 { 9314 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 9315 0x193d, 0xc460) 9316 }, 9317 { 9318 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 9319 0x193d, 0xc461) 9320 }, 9321 { 9322 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 9323 0x193d, 0xf460) 9324 }, 9325 { 9326 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 9327 0x193d, 0xf461) 9328 }, 9329 { 9330 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 9331 0x1bd4, 0x0045) 9332 }, 9333 { 9334 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 9335 0x1bd4, 0x0046) 9336 }, 9337 { 9338 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 9339 0x1bd4, 0x0047) 9340 }, 9341 { 9342 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 9343 0x1bd4, 0x0048) 9344 }, 9345 { 9346 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 9347 0x1bd4, 0x004a) 9348 }, 9349 { 9350 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 9351 0x1bd4, 0x004b) 9352 }, 9353 { 9354 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 9355 0x1bd4, 0x004c) 9356 }, 9357 { 9358 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 9359 0x1bd4, 0x004f) 9360 }, 9361 { 9362 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 9363 0x1bd4, 0x0051) 9364 }, 9365 { 9366 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 9367 0x1bd4, 0x0052) 9368 }, 9369 { 9370 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 9371 0x1bd4, 0x0053) 9372 }, 9373 { 9374 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 9375 0x1bd4, 0x0054) 9376 }, 9377 { 9378 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 9379 0x1bd4, 0x006b) 9380 }, 9381 { 9382 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 9383 0x1bd4, 0x006c) 9384 }, 9385 { 9386 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 9387 0x1bd4, 0x006d) 9388 }, 9389 { 9390 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 9391 0x1bd4, 0x006f) 9392 }, 9393 { 9394 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 9395 0x1bd4, 0x0070) 9396 }, 9397 { 9398 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 9399 0x1bd4, 0x0071) 9400 }, 9401 { 9402 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 9403 0x1bd4, 0x0072) 9404 }, 9405 { 9406 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 9407 0x19e5, 0xd227) 9408 }, 9409 { 9410 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 9411 0x19e5, 0xd228) 9412 }, 9413 { 9414 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 9415 0x19e5, 0xd229) 9416 }, 9417 { 9418 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 9419 0x19e5, 0xd22a) 9420 }, 9421 { 9422 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 9423 0x19e5, 0xd22b) 9424 }, 9425 { 9426 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 9427 0x19e5, 0xd22c) 9428 }, 9429 { 9430 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 9431 PCI_VENDOR_ID_ADAPTEC2, 0x0110) 9432 }, 9433 { 9434 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 9435 PCI_VENDOR_ID_ADAPTEC2, 0x0608) 9436 }, 9437 { 9438 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 9439 PCI_VENDOR_ID_ADAPTEC2, 0x0659) 9440 }, 9441 { 9442 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 9443 PCI_VENDOR_ID_ADAPTEC2, 0x0800) 9444 }, 9445 { 9446 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 9447 PCI_VENDOR_ID_ADAPTEC2, 0x0801) 9448 }, 9449 { 9450 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 9451 PCI_VENDOR_ID_ADAPTEC2, 0x0802) 9452 }, 9453 { 9454 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 9455 PCI_VENDOR_ID_ADAPTEC2, 0x0803) 9456 }, 9457 { 9458 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 9459 PCI_VENDOR_ID_ADAPTEC2, 0x0804) 9460 }, 9461 { 9462 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 9463 PCI_VENDOR_ID_ADAPTEC2, 0x0805) 9464 }, 9465 { 9466 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 9467 PCI_VENDOR_ID_ADAPTEC2, 0x0806) 9468 }, 9469 { 9470 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 9471 PCI_VENDOR_ID_ADAPTEC2, 0x0807) 9472 }, 9473 { 9474 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 9475 PCI_VENDOR_ID_ADAPTEC2, 0x0808) 9476 }, 9477 { 9478 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 9479 PCI_VENDOR_ID_ADAPTEC2, 0x0809) 9480 }, 9481 { 9482 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 9483 PCI_VENDOR_ID_ADAPTEC2, 0x080a) 9484 }, 9485 { 9486 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 9487 PCI_VENDOR_ID_ADAPTEC2, 0x0900) 9488 }, 9489 { 9490 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 9491 PCI_VENDOR_ID_ADAPTEC2, 0x0901) 9492 }, 9493 { 9494 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 9495 PCI_VENDOR_ID_ADAPTEC2, 0x0902) 9496 }, 9497 { 9498 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 9499 PCI_VENDOR_ID_ADAPTEC2, 0x0903) 9500 }, 9501 { 9502 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 9503 PCI_VENDOR_ID_ADAPTEC2, 0x0904) 9504 }, 9505 { 9506 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 9507 PCI_VENDOR_ID_ADAPTEC2, 0x0905) 9508 }, 9509 { 9510 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 9511 PCI_VENDOR_ID_ADAPTEC2, 0x0906) 9512 }, 9513 { 9514 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 9515 PCI_VENDOR_ID_ADAPTEC2, 0x0907) 9516 }, 9517 { 9518 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 9519 PCI_VENDOR_ID_ADAPTEC2, 0x0908) 9520 }, 9521 { 9522 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 9523 PCI_VENDOR_ID_ADAPTEC2, 0x090a) 9524 }, 9525 { 9526 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 9527 PCI_VENDOR_ID_ADAPTEC2, 0x1200) 9528 }, 9529 { 9530 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 9531 PCI_VENDOR_ID_ADAPTEC2, 0x1201) 9532 }, 9533 { 9534 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 9535 PCI_VENDOR_ID_ADAPTEC2, 0x1202) 9536 }, 9537 { 9538 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 9539 PCI_VENDOR_ID_ADAPTEC2, 0x1280) 9540 }, 9541 { 9542 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 9543 PCI_VENDOR_ID_ADAPTEC2, 0x1281) 9544 }, 9545 { 9546 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 9547 PCI_VENDOR_ID_ADAPTEC2, 0x1282) 9548 }, 9549 { 9550 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 9551 PCI_VENDOR_ID_ADAPTEC2, 0x1300) 9552 }, 9553 { 9554 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 9555 PCI_VENDOR_ID_ADAPTEC2, 0x1301) 9556 }, 9557 { 9558 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 9559 PCI_VENDOR_ID_ADAPTEC2, 0x1302) 9560 }, 9561 { 9562 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 9563 PCI_VENDOR_ID_ADAPTEC2, 0x1303) 9564 }, 9565 { 9566 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 9567 PCI_VENDOR_ID_ADAPTEC2, 0x1304) 9568 }, 9569 { 9570 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 9571 PCI_VENDOR_ID_ADAPTEC2, 0x1380) 9572 }, 9573 { 9574 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 9575 PCI_VENDOR_ID_ADAPTEC2, 0x1400) 9576 }, 9577 { 9578 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 9579 PCI_VENDOR_ID_ADAPTEC2, 0x1402) 9580 }, 9581 { 9582 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 9583 PCI_VENDOR_ID_ADAPTEC2, 0x1410) 9584 }, 9585 { 9586 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 9587 PCI_VENDOR_ID_ADAPTEC2, 0x1411) 9588 }, 9589 { 9590 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 9591 PCI_VENDOR_ID_ADAPTEC2, 0x1412) 9592 }, 9593 { 9594 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 9595 PCI_VENDOR_ID_ADAPTEC2, 0x1420) 9596 }, 9597 { 9598 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 9599 PCI_VENDOR_ID_ADAPTEC2, 0x1430) 9600 }, 9601 { 9602 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 9603 PCI_VENDOR_ID_ADAPTEC2, 0x1440) 9604 }, 9605 { 9606 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 9607 PCI_VENDOR_ID_ADAPTEC2, 0x1441) 9608 }, 9609 { 9610 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 9611 PCI_VENDOR_ID_ADAPTEC2, 0x1450) 9612 }, 9613 { 9614 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 9615 PCI_VENDOR_ID_ADAPTEC2, 0x1452) 9616 }, 9617 { 9618 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 9619 PCI_VENDOR_ID_ADAPTEC2, 0x1460) 9620 }, 9621 { 9622 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 9623 PCI_VENDOR_ID_ADAPTEC2, 0x1461) 9624 }, 9625 { 9626 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 9627 PCI_VENDOR_ID_ADAPTEC2, 0x1462) 9628 }, 9629 { 9630 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 9631 PCI_VENDOR_ID_ADAPTEC2, 0x1463) 9632 }, 9633 { 9634 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 9635 PCI_VENDOR_ID_ADAPTEC2, 0x1470) 9636 }, 9637 { 9638 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 9639 PCI_VENDOR_ID_ADAPTEC2, 0x1471) 9640 }, 9641 { 9642 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 9643 PCI_VENDOR_ID_ADAPTEC2, 0x1472) 9644 }, 9645 { 9646 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 9647 PCI_VENDOR_ID_ADAPTEC2, 0x1473) 9648 }, 9649 { 9650 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 9651 PCI_VENDOR_ID_ADAPTEC2, 0x1474) 9652 }, 9653 { 9654 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 9655 PCI_VENDOR_ID_ADAPTEC2, 0x1480) 9656 }, 9657 { 9658 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 9659 PCI_VENDOR_ID_ADAPTEC2, 0x1490) 9660 }, 9661 { 9662 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 9663 PCI_VENDOR_ID_ADAPTEC2, 0x1491) 9664 }, 9665 { 9666 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 9667 PCI_VENDOR_ID_ADAPTEC2, 0x14a0) 9668 }, 9669 { 9670 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 9671 PCI_VENDOR_ID_ADAPTEC2, 0x14a1) 9672 }, 9673 { 9674 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 9675 PCI_VENDOR_ID_ADAPTEC2, 0x14a2) 9676 }, 9677 { 9678 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 9679 PCI_VENDOR_ID_ADAPTEC2, 0x14a4) 9680 }, 9681 { 9682 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 9683 PCI_VENDOR_ID_ADAPTEC2, 0x14a5) 9684 }, 9685 { 9686 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 9687 PCI_VENDOR_ID_ADAPTEC2, 0x14a6) 9688 }, 9689 { 9690 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 9691 PCI_VENDOR_ID_ADAPTEC2, 0x14b0) 9692 }, 9693 { 9694 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 9695 PCI_VENDOR_ID_ADAPTEC2, 0x14b1) 9696 }, 9697 { 9698 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 9699 PCI_VENDOR_ID_ADAPTEC2, 0x14c0) 9700 }, 9701 { 9702 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 9703 PCI_VENDOR_ID_ADAPTEC2, 0x14c1) 9704 }, 9705 { 9706 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 9707 PCI_VENDOR_ID_ADAPTEC2, 0x14c2) 9708 }, 9709 { 9710 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 9711 PCI_VENDOR_ID_ADAPTEC2, 0x14d0) 9712 }, 9713 { 9714 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 9715 PCI_VENDOR_ID_ADAPTEC2, 0x14e0) 9716 }, 9717 { 9718 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 9719 PCI_VENDOR_ID_ADAPTEC2, 0x14f0) 9720 }, 9721 { 9722 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 9723 PCI_VENDOR_ID_ADVANTECH, 0x8312) 9724 }, 9725 { 9726 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 9727 PCI_VENDOR_ID_DELL, 0x1fe0) 9728 }, 9729 { 9730 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 9731 PCI_VENDOR_ID_HP, 0x0600) 9732 }, 9733 { 9734 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 9735 PCI_VENDOR_ID_HP, 0x0601) 9736 }, 9737 { 9738 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 9739 PCI_VENDOR_ID_HP, 0x0602) 9740 }, 9741 { 9742 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 9743 PCI_VENDOR_ID_HP, 0x0603) 9744 }, 9745 { 9746 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 9747 PCI_VENDOR_ID_HP, 0x0609) 9748 }, 9749 { 9750 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 9751 PCI_VENDOR_ID_HP, 0x0650) 9752 }, 9753 { 9754 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 9755 PCI_VENDOR_ID_HP, 0x0651) 9756 }, 9757 { 9758 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 9759 PCI_VENDOR_ID_HP, 0x0652) 9760 }, 9761 { 9762 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 9763 PCI_VENDOR_ID_HP, 0x0653) 9764 }, 9765 { 9766 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 9767 PCI_VENDOR_ID_HP, 0x0654) 9768 }, 9769 { 9770 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 9771 PCI_VENDOR_ID_HP, 0x0655) 9772 }, 9773 { 9774 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 9775 PCI_VENDOR_ID_HP, 0x0700) 9776 }, 9777 { 9778 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 9779 PCI_VENDOR_ID_HP, 0x0701) 9780 }, 9781 { 9782 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 9783 PCI_VENDOR_ID_HP, 0x1001) 9784 }, 9785 { 9786 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 9787 PCI_VENDOR_ID_HP, 0x1002) 9788 }, 9789 { 9790 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 9791 PCI_VENDOR_ID_HP, 0x1100) 9792 }, 9793 { 9794 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 9795 PCI_VENDOR_ID_HP, 0x1101) 9796 }, 9797 { 9798 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 9799 0x1590, 0x0294) 9800 }, 9801 { 9802 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 9803 0x1590, 0x02db) 9804 }, 9805 { 9806 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 9807 0x1590, 0x02dc) 9808 }, 9809 { 9810 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 9811 0x1590, 0x032e) 9812 }, 9813 { 9814 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 9815 0x1590, 0x036f) 9816 }, 9817 { 9818 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 9819 0x1590, 0x0381) 9820 }, 9821 { 9822 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 9823 0x1590, 0x0382) 9824 }, 9825 { 9826 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 9827 0x1590, 0x0383) 9828 }, 9829 { 9830 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 9831 0x1d8d, 0x0800) 9832 }, 9833 { 9834 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 9835 0x1d8d, 0x0908) 9836 }, 9837 { 9838 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 9839 0x1d8d, 0x0806) 9840 }, 9841 { 9842 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 9843 0x1d8d, 0x0916) 9844 }, 9845 { 9846 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 9847 PCI_VENDOR_ID_GIGABYTE, 0x1000) 9848 }, 9849 { 9850 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 9851 0x1dfc, 0x3161) 9852 }, 9853 { 9854 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 9855 0x1f0c, 0x3161) 9856 }, 9857 { 9858 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 9859 0x1cf2, 0x5445) 9860 }, 9861 { 9862 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 9863 0x1cf2, 0x5446) 9864 }, 9865 { 9866 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 9867 0x1cf2, 0x5447) 9868 }, 9869 { 9870 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 9871 0x1cf2, 0x5449) 9872 }, 9873 { 9874 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 9875 0x1cf2, 0x544a) 9876 }, 9877 { 9878 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 9879 0x1cf2, 0x544b) 9880 }, 9881 { 9882 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 9883 0x1cf2, 0x544d) 9884 }, 9885 { 9886 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 9887 0x1cf2, 0x544e) 9888 }, 9889 { 9890 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 9891 0x1cf2, 0x544f) 9892 }, 9893 { 9894 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 9895 0x1cf2, 0x0b27) 9896 }, 9897 { 9898 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 9899 0x1cf2, 0x0b29) 9900 }, 9901 { 9902 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 9903 0x1cf2, 0x0b45) 9904 }, 9905 { 9906 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 9907 0x1cc4, 0x0101) 9908 }, 9909 { 9910 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 9911 0x1cc4, 0x0201) 9912 }, 9913 { 9914 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 9915 PCI_VENDOR_ID_LENOVO, 0x0220) 9916 }, 9917 { 9918 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 9919 PCI_VENDOR_ID_LENOVO, 0x0221) 9920 }, 9921 { 9922 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 9923 PCI_VENDOR_ID_LENOVO, 0x0520) 9924 }, 9925 { 9926 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 9927 PCI_VENDOR_ID_LENOVO, 0x0522) 9928 }, 9929 { 9930 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 9931 PCI_VENDOR_ID_LENOVO, 0x0620) 9932 }, 9933 { 9934 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 9935 PCI_VENDOR_ID_LENOVO, 0x0621) 9936 }, 9937 { 9938 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 9939 PCI_VENDOR_ID_LENOVO, 0x0622) 9940 }, 9941 { 9942 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 9943 PCI_VENDOR_ID_LENOVO, 0x0623) 9944 }, 9945 { 9946 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 9947 PCI_ANY_ID, PCI_ANY_ID) 9948 }, 9949 { 0 } 9950 }; 9951 9952 MODULE_DEVICE_TABLE(pci, pqi_pci_id_table); 9953 9954 static struct pci_driver pqi_pci_driver = { 9955 .name = DRIVER_NAME_SHORT, 9956 .id_table = pqi_pci_id_table, 9957 .probe = pqi_pci_probe, 9958 .remove = pqi_pci_remove, 9959 .shutdown = pqi_shutdown, 9960 #if defined(CONFIG_PM) 9961 .driver = { 9962 .pm = &pqi_pm_ops 9963 }, 9964 #endif 9965 }; 9966 9967 static int __init pqi_init(void) 9968 { 9969 int rc; 9970 9971 pr_info(DRIVER_NAME "\n"); 9972 pqi_verify_structures(); 9973 sis_verify_structures(); 9974 9975 pqi_sas_transport_template = sas_attach_transport(&pqi_sas_transport_functions); 9976 if (!pqi_sas_transport_template) 9977 return -ENODEV; 9978 9979 pqi_process_module_params(); 9980 9981 rc = pci_register_driver(&pqi_pci_driver); 9982 if (rc) 9983 sas_release_transport(pqi_sas_transport_template); 9984 9985 return rc; 9986 } 9987 9988 static void __exit pqi_cleanup(void) 9989 { 9990 pci_unregister_driver(&pqi_pci_driver); 9991 sas_release_transport(pqi_sas_transport_template); 9992 } 9993 9994 module_init(pqi_init); 9995 module_exit(pqi_cleanup); 9996 9997 static void pqi_verify_structures(void) 9998 { 9999 BUILD_BUG_ON(offsetof(struct pqi_ctrl_registers, 10000 sis_host_to_ctrl_doorbell) != 0x20); 10001 BUILD_BUG_ON(offsetof(struct pqi_ctrl_registers, 10002 sis_interrupt_mask) != 0x34); 10003 BUILD_BUG_ON(offsetof(struct pqi_ctrl_registers, 10004 sis_ctrl_to_host_doorbell) != 0x9c); 10005 BUILD_BUG_ON(offsetof(struct pqi_ctrl_registers, 10006 sis_ctrl_to_host_doorbell_clear) != 0xa0); 10007 BUILD_BUG_ON(offsetof(struct pqi_ctrl_registers, 10008 sis_driver_scratch) != 0xb0); 10009 BUILD_BUG_ON(offsetof(struct pqi_ctrl_registers, 10010 sis_product_identifier) != 0xb4); 10011 BUILD_BUG_ON(offsetof(struct pqi_ctrl_registers, 10012 sis_firmware_status) != 0xbc); 10013 BUILD_BUG_ON(offsetof(struct pqi_ctrl_registers, 10014 sis_ctrl_shutdown_reason_code) != 0xcc); 10015 BUILD_BUG_ON(offsetof(struct pqi_ctrl_registers, 10016 sis_mailbox) != 0x1000); 10017 BUILD_BUG_ON(offsetof(struct pqi_ctrl_registers, 10018 pqi_registers) != 0x4000); 10019 10020 BUILD_BUG_ON(offsetof(struct pqi_iu_header, 10021 iu_type) != 0x0); 10022 BUILD_BUG_ON(offsetof(struct pqi_iu_header, 10023 iu_length) != 0x2); 10024 BUILD_BUG_ON(offsetof(struct pqi_iu_header, 10025 response_queue_id) != 0x4); 10026 BUILD_BUG_ON(offsetof(struct pqi_iu_header, 10027 driver_flags) != 0x6); 10028 BUILD_BUG_ON(sizeof(struct pqi_iu_header) != 0x8); 10029 10030 BUILD_BUG_ON(offsetof(struct pqi_aio_error_info, 10031 status) != 0x0); 10032 BUILD_BUG_ON(offsetof(struct pqi_aio_error_info, 10033 service_response) != 0x1); 10034 BUILD_BUG_ON(offsetof(struct pqi_aio_error_info, 10035 data_present) != 0x2); 10036 BUILD_BUG_ON(offsetof(struct pqi_aio_error_info, 10037 reserved) != 0x3); 10038 BUILD_BUG_ON(offsetof(struct pqi_aio_error_info, 10039 residual_count) != 0x4); 10040 BUILD_BUG_ON(offsetof(struct pqi_aio_error_info, 10041 data_length) != 0x8); 10042 BUILD_BUG_ON(offsetof(struct pqi_aio_error_info, 10043 reserved1) != 0xa); 10044 BUILD_BUG_ON(offsetof(struct pqi_aio_error_info, 10045 data) != 0xc); 10046 BUILD_BUG_ON(sizeof(struct pqi_aio_error_info) != 0x10c); 10047 10048 BUILD_BUG_ON(offsetof(struct pqi_raid_error_info, 10049 data_in_result) != 0x0); 10050 BUILD_BUG_ON(offsetof(struct pqi_raid_error_info, 10051 data_out_result) != 0x1); 10052 BUILD_BUG_ON(offsetof(struct pqi_raid_error_info, 10053 reserved) != 0x2); 10054 BUILD_BUG_ON(offsetof(struct pqi_raid_error_info, 10055 status) != 0x5); 10056 BUILD_BUG_ON(offsetof(struct pqi_raid_error_info, 10057 status_qualifier) != 0x6); 10058 BUILD_BUG_ON(offsetof(struct pqi_raid_error_info, 10059 sense_data_length) != 0x8); 10060 BUILD_BUG_ON(offsetof(struct pqi_raid_error_info, 10061 response_data_length) != 0xa); 10062 BUILD_BUG_ON(offsetof(struct pqi_raid_error_info, 10063 data_in_transferred) != 0xc); 10064 BUILD_BUG_ON(offsetof(struct pqi_raid_error_info, 10065 data_out_transferred) != 0x10); 10066 BUILD_BUG_ON(offsetof(struct pqi_raid_error_info, 10067 data) != 0x14); 10068 BUILD_BUG_ON(sizeof(struct pqi_raid_error_info) != 0x114); 10069 10070 BUILD_BUG_ON(offsetof(struct pqi_device_registers, 10071 signature) != 0x0); 10072 BUILD_BUG_ON(offsetof(struct pqi_device_registers, 10073 function_and_status_code) != 0x8); 10074 BUILD_BUG_ON(offsetof(struct pqi_device_registers, 10075 max_admin_iq_elements) != 0x10); 10076 BUILD_BUG_ON(offsetof(struct pqi_device_registers, 10077 max_admin_oq_elements) != 0x11); 10078 BUILD_BUG_ON(offsetof(struct pqi_device_registers, 10079 admin_iq_element_length) != 0x12); 10080 BUILD_BUG_ON(offsetof(struct pqi_device_registers, 10081 admin_oq_element_length) != 0x13); 10082 BUILD_BUG_ON(offsetof(struct pqi_device_registers, 10083 max_reset_timeout) != 0x14); 10084 BUILD_BUG_ON(offsetof(struct pqi_device_registers, 10085 legacy_intx_status) != 0x18); 10086 BUILD_BUG_ON(offsetof(struct pqi_device_registers, 10087 legacy_intx_mask_set) != 0x1c); 10088 BUILD_BUG_ON(offsetof(struct pqi_device_registers, 10089 legacy_intx_mask_clear) != 0x20); 10090 BUILD_BUG_ON(offsetof(struct pqi_device_registers, 10091 device_status) != 0x40); 10092 BUILD_BUG_ON(offsetof(struct pqi_device_registers, 10093 admin_iq_pi_offset) != 0x48); 10094 BUILD_BUG_ON(offsetof(struct pqi_device_registers, 10095 admin_oq_ci_offset) != 0x50); 10096 BUILD_BUG_ON(offsetof(struct pqi_device_registers, 10097 admin_iq_element_array_addr) != 0x58); 10098 BUILD_BUG_ON(offsetof(struct pqi_device_registers, 10099 admin_oq_element_array_addr) != 0x60); 10100 BUILD_BUG_ON(offsetof(struct pqi_device_registers, 10101 admin_iq_ci_addr) != 0x68); 10102 BUILD_BUG_ON(offsetof(struct pqi_device_registers, 10103 admin_oq_pi_addr) != 0x70); 10104 BUILD_BUG_ON(offsetof(struct pqi_device_registers, 10105 admin_iq_num_elements) != 0x78); 10106 BUILD_BUG_ON(offsetof(struct pqi_device_registers, 10107 admin_oq_num_elements) != 0x79); 10108 BUILD_BUG_ON(offsetof(struct pqi_device_registers, 10109 admin_queue_int_msg_num) != 0x7a); 10110 BUILD_BUG_ON(offsetof(struct pqi_device_registers, 10111 device_error) != 0x80); 10112 BUILD_BUG_ON(offsetof(struct pqi_device_registers, 10113 error_details) != 0x88); 10114 BUILD_BUG_ON(offsetof(struct pqi_device_registers, 10115 device_reset) != 0x90); 10116 BUILD_BUG_ON(offsetof(struct pqi_device_registers, 10117 power_action) != 0x94); 10118 BUILD_BUG_ON(sizeof(struct pqi_device_registers) != 0x100); 10119 10120 BUILD_BUG_ON(offsetof(struct pqi_general_admin_request, 10121 header.iu_type) != 0); 10122 BUILD_BUG_ON(offsetof(struct pqi_general_admin_request, 10123 header.iu_length) != 2); 10124 BUILD_BUG_ON(offsetof(struct pqi_general_admin_request, 10125 header.driver_flags) != 6); 10126 BUILD_BUG_ON(offsetof(struct pqi_general_admin_request, 10127 request_id) != 8); 10128 BUILD_BUG_ON(offsetof(struct pqi_general_admin_request, 10129 function_code) != 10); 10130 BUILD_BUG_ON(offsetof(struct pqi_general_admin_request, 10131 data.report_device_capability.buffer_length) != 44); 10132 BUILD_BUG_ON(offsetof(struct pqi_general_admin_request, 10133 data.report_device_capability.sg_descriptor) != 48); 10134 BUILD_BUG_ON(offsetof(struct pqi_general_admin_request, 10135 data.create_operational_iq.queue_id) != 12); 10136 BUILD_BUG_ON(offsetof(struct pqi_general_admin_request, 10137 data.create_operational_iq.element_array_addr) != 16); 10138 BUILD_BUG_ON(offsetof(struct pqi_general_admin_request, 10139 data.create_operational_iq.ci_addr) != 24); 10140 BUILD_BUG_ON(offsetof(struct pqi_general_admin_request, 10141 data.create_operational_iq.num_elements) != 32); 10142 BUILD_BUG_ON(offsetof(struct pqi_general_admin_request, 10143 data.create_operational_iq.element_length) != 34); 10144 BUILD_BUG_ON(offsetof(struct pqi_general_admin_request, 10145 data.create_operational_iq.queue_protocol) != 36); 10146 BUILD_BUG_ON(offsetof(struct pqi_general_admin_request, 10147 data.create_operational_oq.queue_id) != 12); 10148 BUILD_BUG_ON(offsetof(struct pqi_general_admin_request, 10149 data.create_operational_oq.element_array_addr) != 16); 10150 BUILD_BUG_ON(offsetof(struct pqi_general_admin_request, 10151 data.create_operational_oq.pi_addr) != 24); 10152 BUILD_BUG_ON(offsetof(struct pqi_general_admin_request, 10153 data.create_operational_oq.num_elements) != 32); 10154 BUILD_BUG_ON(offsetof(struct pqi_general_admin_request, 10155 data.create_operational_oq.element_length) != 34); 10156 BUILD_BUG_ON(offsetof(struct pqi_general_admin_request, 10157 data.create_operational_oq.queue_protocol) != 36); 10158 BUILD_BUG_ON(offsetof(struct pqi_general_admin_request, 10159 data.create_operational_oq.int_msg_num) != 40); 10160 BUILD_BUG_ON(offsetof(struct pqi_general_admin_request, 10161 data.create_operational_oq.coalescing_count) != 42); 10162 BUILD_BUG_ON(offsetof(struct pqi_general_admin_request, 10163 data.create_operational_oq.min_coalescing_time) != 44); 10164 BUILD_BUG_ON(offsetof(struct pqi_general_admin_request, 10165 data.create_operational_oq.max_coalescing_time) != 48); 10166 BUILD_BUG_ON(offsetof(struct pqi_general_admin_request, 10167 data.delete_operational_queue.queue_id) != 12); 10168 BUILD_BUG_ON(sizeof(struct pqi_general_admin_request) != 64); 10169 BUILD_BUG_ON(sizeof_field(struct pqi_general_admin_request, 10170 data.create_operational_iq) != 64 - 11); 10171 BUILD_BUG_ON(sizeof_field(struct pqi_general_admin_request, 10172 data.create_operational_oq) != 64 - 11); 10173 BUILD_BUG_ON(sizeof_field(struct pqi_general_admin_request, 10174 data.delete_operational_queue) != 64 - 11); 10175 10176 BUILD_BUG_ON(offsetof(struct pqi_general_admin_response, 10177 header.iu_type) != 0); 10178 BUILD_BUG_ON(offsetof(struct pqi_general_admin_response, 10179 header.iu_length) != 2); 10180 BUILD_BUG_ON(offsetof(struct pqi_general_admin_response, 10181 header.driver_flags) != 6); 10182 BUILD_BUG_ON(offsetof(struct pqi_general_admin_response, 10183 request_id) != 8); 10184 BUILD_BUG_ON(offsetof(struct pqi_general_admin_response, 10185 function_code) != 10); 10186 BUILD_BUG_ON(offsetof(struct pqi_general_admin_response, 10187 status) != 11); 10188 BUILD_BUG_ON(offsetof(struct pqi_general_admin_response, 10189 data.create_operational_iq.status_descriptor) != 12); 10190 BUILD_BUG_ON(offsetof(struct pqi_general_admin_response, 10191 data.create_operational_iq.iq_pi_offset) != 16); 10192 BUILD_BUG_ON(offsetof(struct pqi_general_admin_response, 10193 data.create_operational_oq.status_descriptor) != 12); 10194 BUILD_BUG_ON(offsetof(struct pqi_general_admin_response, 10195 data.create_operational_oq.oq_ci_offset) != 16); 10196 BUILD_BUG_ON(sizeof(struct pqi_general_admin_response) != 64); 10197 10198 BUILD_BUG_ON(offsetof(struct pqi_raid_path_request, 10199 header.iu_type) != 0); 10200 BUILD_BUG_ON(offsetof(struct pqi_raid_path_request, 10201 header.iu_length) != 2); 10202 BUILD_BUG_ON(offsetof(struct pqi_raid_path_request, 10203 header.response_queue_id) != 4); 10204 BUILD_BUG_ON(offsetof(struct pqi_raid_path_request, 10205 header.driver_flags) != 6); 10206 BUILD_BUG_ON(offsetof(struct pqi_raid_path_request, 10207 request_id) != 8); 10208 BUILD_BUG_ON(offsetof(struct pqi_raid_path_request, 10209 nexus_id) != 10); 10210 BUILD_BUG_ON(offsetof(struct pqi_raid_path_request, 10211 buffer_length) != 12); 10212 BUILD_BUG_ON(offsetof(struct pqi_raid_path_request, 10213 lun_number) != 16); 10214 BUILD_BUG_ON(offsetof(struct pqi_raid_path_request, 10215 protocol_specific) != 24); 10216 BUILD_BUG_ON(offsetof(struct pqi_raid_path_request, 10217 error_index) != 27); 10218 BUILD_BUG_ON(offsetof(struct pqi_raid_path_request, 10219 cdb) != 32); 10220 BUILD_BUG_ON(offsetof(struct pqi_raid_path_request, 10221 timeout) != 60); 10222 BUILD_BUG_ON(offsetof(struct pqi_raid_path_request, 10223 sg_descriptors) != 64); 10224 BUILD_BUG_ON(sizeof(struct pqi_raid_path_request) != 10225 PQI_OPERATIONAL_IQ_ELEMENT_LENGTH); 10226 10227 BUILD_BUG_ON(offsetof(struct pqi_aio_path_request, 10228 header.iu_type) != 0); 10229 BUILD_BUG_ON(offsetof(struct pqi_aio_path_request, 10230 header.iu_length) != 2); 10231 BUILD_BUG_ON(offsetof(struct pqi_aio_path_request, 10232 header.response_queue_id) != 4); 10233 BUILD_BUG_ON(offsetof(struct pqi_aio_path_request, 10234 header.driver_flags) != 6); 10235 BUILD_BUG_ON(offsetof(struct pqi_aio_path_request, 10236 request_id) != 8); 10237 BUILD_BUG_ON(offsetof(struct pqi_aio_path_request, 10238 nexus_id) != 12); 10239 BUILD_BUG_ON(offsetof(struct pqi_aio_path_request, 10240 buffer_length) != 16); 10241 BUILD_BUG_ON(offsetof(struct pqi_aio_path_request, 10242 data_encryption_key_index) != 22); 10243 BUILD_BUG_ON(offsetof(struct pqi_aio_path_request, 10244 encrypt_tweak_lower) != 24); 10245 BUILD_BUG_ON(offsetof(struct pqi_aio_path_request, 10246 encrypt_tweak_upper) != 28); 10247 BUILD_BUG_ON(offsetof(struct pqi_aio_path_request, 10248 cdb) != 32); 10249 BUILD_BUG_ON(offsetof(struct pqi_aio_path_request, 10250 error_index) != 48); 10251 BUILD_BUG_ON(offsetof(struct pqi_aio_path_request, 10252 num_sg_descriptors) != 50); 10253 BUILD_BUG_ON(offsetof(struct pqi_aio_path_request, 10254 cdb_length) != 51); 10255 BUILD_BUG_ON(offsetof(struct pqi_aio_path_request, 10256 lun_number) != 52); 10257 BUILD_BUG_ON(offsetof(struct pqi_aio_path_request, 10258 sg_descriptors) != 64); 10259 BUILD_BUG_ON(sizeof(struct pqi_aio_path_request) != 10260 PQI_OPERATIONAL_IQ_ELEMENT_LENGTH); 10261 10262 BUILD_BUG_ON(offsetof(struct pqi_io_response, 10263 header.iu_type) != 0); 10264 BUILD_BUG_ON(offsetof(struct pqi_io_response, 10265 header.iu_length) != 2); 10266 BUILD_BUG_ON(offsetof(struct pqi_io_response, 10267 request_id) != 8); 10268 BUILD_BUG_ON(offsetof(struct pqi_io_response, 10269 error_index) != 10); 10270 10271 BUILD_BUG_ON(offsetof(struct pqi_general_management_request, 10272 header.iu_type) != 0); 10273 BUILD_BUG_ON(offsetof(struct pqi_general_management_request, 10274 header.iu_length) != 2); 10275 BUILD_BUG_ON(offsetof(struct pqi_general_management_request, 10276 header.response_queue_id) != 4); 10277 BUILD_BUG_ON(offsetof(struct pqi_general_management_request, 10278 request_id) != 8); 10279 BUILD_BUG_ON(offsetof(struct pqi_general_management_request, 10280 data.report_event_configuration.buffer_length) != 12); 10281 BUILD_BUG_ON(offsetof(struct pqi_general_management_request, 10282 data.report_event_configuration.sg_descriptors) != 16); 10283 BUILD_BUG_ON(offsetof(struct pqi_general_management_request, 10284 data.set_event_configuration.global_event_oq_id) != 10); 10285 BUILD_BUG_ON(offsetof(struct pqi_general_management_request, 10286 data.set_event_configuration.buffer_length) != 12); 10287 BUILD_BUG_ON(offsetof(struct pqi_general_management_request, 10288 data.set_event_configuration.sg_descriptors) != 16); 10289 10290 BUILD_BUG_ON(offsetof(struct pqi_iu_layer_descriptor, 10291 max_inbound_iu_length) != 6); 10292 BUILD_BUG_ON(offsetof(struct pqi_iu_layer_descriptor, 10293 max_outbound_iu_length) != 14); 10294 BUILD_BUG_ON(sizeof(struct pqi_iu_layer_descriptor) != 16); 10295 10296 BUILD_BUG_ON(offsetof(struct pqi_device_capability, 10297 data_length) != 0); 10298 BUILD_BUG_ON(offsetof(struct pqi_device_capability, 10299 iq_arbitration_priority_support_bitmask) != 8); 10300 BUILD_BUG_ON(offsetof(struct pqi_device_capability, 10301 maximum_aw_a) != 9); 10302 BUILD_BUG_ON(offsetof(struct pqi_device_capability, 10303 maximum_aw_b) != 10); 10304 BUILD_BUG_ON(offsetof(struct pqi_device_capability, 10305 maximum_aw_c) != 11); 10306 BUILD_BUG_ON(offsetof(struct pqi_device_capability, 10307 max_inbound_queues) != 16); 10308 BUILD_BUG_ON(offsetof(struct pqi_device_capability, 10309 max_elements_per_iq) != 18); 10310 BUILD_BUG_ON(offsetof(struct pqi_device_capability, 10311 max_iq_element_length) != 24); 10312 BUILD_BUG_ON(offsetof(struct pqi_device_capability, 10313 min_iq_element_length) != 26); 10314 BUILD_BUG_ON(offsetof(struct pqi_device_capability, 10315 max_outbound_queues) != 30); 10316 BUILD_BUG_ON(offsetof(struct pqi_device_capability, 10317 max_elements_per_oq) != 32); 10318 BUILD_BUG_ON(offsetof(struct pqi_device_capability, 10319 intr_coalescing_time_granularity) != 34); 10320 BUILD_BUG_ON(offsetof(struct pqi_device_capability, 10321 max_oq_element_length) != 36); 10322 BUILD_BUG_ON(offsetof(struct pqi_device_capability, 10323 min_oq_element_length) != 38); 10324 BUILD_BUG_ON(offsetof(struct pqi_device_capability, 10325 iu_layer_descriptors) != 64); 10326 BUILD_BUG_ON(sizeof(struct pqi_device_capability) != 576); 10327 10328 BUILD_BUG_ON(offsetof(struct pqi_event_descriptor, 10329 event_type) != 0); 10330 BUILD_BUG_ON(offsetof(struct pqi_event_descriptor, 10331 oq_id) != 2); 10332 BUILD_BUG_ON(sizeof(struct pqi_event_descriptor) != 4); 10333 10334 BUILD_BUG_ON(offsetof(struct pqi_event_config, 10335 num_event_descriptors) != 2); 10336 BUILD_BUG_ON(offsetof(struct pqi_event_config, 10337 descriptors) != 4); 10338 10339 BUILD_BUG_ON(PQI_NUM_SUPPORTED_EVENTS != 10340 ARRAY_SIZE(pqi_supported_event_types)); 10341 10342 BUILD_BUG_ON(offsetof(struct pqi_event_response, 10343 header.iu_type) != 0); 10344 BUILD_BUG_ON(offsetof(struct pqi_event_response, 10345 header.iu_length) != 2); 10346 BUILD_BUG_ON(offsetof(struct pqi_event_response, 10347 event_type) != 8); 10348 BUILD_BUG_ON(offsetof(struct pqi_event_response, 10349 event_id) != 10); 10350 BUILD_BUG_ON(offsetof(struct pqi_event_response, 10351 additional_event_id) != 12); 10352 BUILD_BUG_ON(offsetof(struct pqi_event_response, 10353 data) != 16); 10354 BUILD_BUG_ON(sizeof(struct pqi_event_response) != 32); 10355 10356 BUILD_BUG_ON(offsetof(struct pqi_event_acknowledge_request, 10357 header.iu_type) != 0); 10358 BUILD_BUG_ON(offsetof(struct pqi_event_acknowledge_request, 10359 header.iu_length) != 2); 10360 BUILD_BUG_ON(offsetof(struct pqi_event_acknowledge_request, 10361 event_type) != 8); 10362 BUILD_BUG_ON(offsetof(struct pqi_event_acknowledge_request, 10363 event_id) != 10); 10364 BUILD_BUG_ON(offsetof(struct pqi_event_acknowledge_request, 10365 additional_event_id) != 12); 10366 BUILD_BUG_ON(sizeof(struct pqi_event_acknowledge_request) != 16); 10367 10368 BUILD_BUG_ON(offsetof(struct pqi_task_management_request, 10369 header.iu_type) != 0); 10370 BUILD_BUG_ON(offsetof(struct pqi_task_management_request, 10371 header.iu_length) != 2); 10372 BUILD_BUG_ON(offsetof(struct pqi_task_management_request, 10373 request_id) != 8); 10374 BUILD_BUG_ON(offsetof(struct pqi_task_management_request, 10375 nexus_id) != 10); 10376 BUILD_BUG_ON(offsetof(struct pqi_task_management_request, 10377 timeout) != 14); 10378 BUILD_BUG_ON(offsetof(struct pqi_task_management_request, 10379 lun_number) != 16); 10380 BUILD_BUG_ON(offsetof(struct pqi_task_management_request, 10381 protocol_specific) != 24); 10382 BUILD_BUG_ON(offsetof(struct pqi_task_management_request, 10383 outbound_queue_id_to_manage) != 26); 10384 BUILD_BUG_ON(offsetof(struct pqi_task_management_request, 10385 request_id_to_manage) != 28); 10386 BUILD_BUG_ON(offsetof(struct pqi_task_management_request, 10387 task_management_function) != 30); 10388 BUILD_BUG_ON(sizeof(struct pqi_task_management_request) != 32); 10389 10390 BUILD_BUG_ON(offsetof(struct pqi_task_management_response, 10391 header.iu_type) != 0); 10392 BUILD_BUG_ON(offsetof(struct pqi_task_management_response, 10393 header.iu_length) != 2); 10394 BUILD_BUG_ON(offsetof(struct pqi_task_management_response, 10395 request_id) != 8); 10396 BUILD_BUG_ON(offsetof(struct pqi_task_management_response, 10397 nexus_id) != 10); 10398 BUILD_BUG_ON(offsetof(struct pqi_task_management_response, 10399 additional_response_info) != 12); 10400 BUILD_BUG_ON(offsetof(struct pqi_task_management_response, 10401 response_code) != 15); 10402 BUILD_BUG_ON(sizeof(struct pqi_task_management_response) != 16); 10403 10404 BUILD_BUG_ON(offsetof(struct bmic_identify_controller, 10405 configured_logical_drive_count) != 0); 10406 BUILD_BUG_ON(offsetof(struct bmic_identify_controller, 10407 configuration_signature) != 1); 10408 BUILD_BUG_ON(offsetof(struct bmic_identify_controller, 10409 firmware_version_short) != 5); 10410 BUILD_BUG_ON(offsetof(struct bmic_identify_controller, 10411 extended_logical_unit_count) != 154); 10412 BUILD_BUG_ON(offsetof(struct bmic_identify_controller, 10413 firmware_build_number) != 190); 10414 BUILD_BUG_ON(offsetof(struct bmic_identify_controller, 10415 vendor_id) != 200); 10416 BUILD_BUG_ON(offsetof(struct bmic_identify_controller, 10417 product_id) != 208); 10418 BUILD_BUG_ON(offsetof(struct bmic_identify_controller, 10419 extra_controller_flags) != 286); 10420 BUILD_BUG_ON(offsetof(struct bmic_identify_controller, 10421 controller_mode) != 292); 10422 BUILD_BUG_ON(offsetof(struct bmic_identify_controller, 10423 spare_part_number) != 293); 10424 BUILD_BUG_ON(offsetof(struct bmic_identify_controller, 10425 firmware_version_long) != 325); 10426 10427 BUILD_BUG_ON(offsetof(struct bmic_identify_physical_device, 10428 phys_bay_in_box) != 115); 10429 BUILD_BUG_ON(offsetof(struct bmic_identify_physical_device, 10430 device_type) != 120); 10431 BUILD_BUG_ON(offsetof(struct bmic_identify_physical_device, 10432 redundant_path_present_map) != 1736); 10433 BUILD_BUG_ON(offsetof(struct bmic_identify_physical_device, 10434 active_path_number) != 1738); 10435 BUILD_BUG_ON(offsetof(struct bmic_identify_physical_device, 10436 alternate_paths_phys_connector) != 1739); 10437 BUILD_BUG_ON(offsetof(struct bmic_identify_physical_device, 10438 alternate_paths_phys_box_on_port) != 1755); 10439 BUILD_BUG_ON(offsetof(struct bmic_identify_physical_device, 10440 current_queue_depth_limit) != 1796); 10441 BUILD_BUG_ON(sizeof(struct bmic_identify_physical_device) != 2560); 10442 10443 BUILD_BUG_ON(sizeof(struct bmic_sense_feature_buffer_header) != 4); 10444 BUILD_BUG_ON(offsetof(struct bmic_sense_feature_buffer_header, 10445 page_code) != 0); 10446 BUILD_BUG_ON(offsetof(struct bmic_sense_feature_buffer_header, 10447 subpage_code) != 1); 10448 BUILD_BUG_ON(offsetof(struct bmic_sense_feature_buffer_header, 10449 buffer_length) != 2); 10450 10451 BUILD_BUG_ON(sizeof(struct bmic_sense_feature_page_header) != 4); 10452 BUILD_BUG_ON(offsetof(struct bmic_sense_feature_page_header, 10453 page_code) != 0); 10454 BUILD_BUG_ON(offsetof(struct bmic_sense_feature_page_header, 10455 subpage_code) != 1); 10456 BUILD_BUG_ON(offsetof(struct bmic_sense_feature_page_header, 10457 page_length) != 2); 10458 10459 BUILD_BUG_ON(sizeof(struct bmic_sense_feature_io_page_aio_subpage) 10460 != 18); 10461 BUILD_BUG_ON(offsetof(struct bmic_sense_feature_io_page_aio_subpage, 10462 header) != 0); 10463 BUILD_BUG_ON(offsetof(struct bmic_sense_feature_io_page_aio_subpage, 10464 firmware_read_support) != 4); 10465 BUILD_BUG_ON(offsetof(struct bmic_sense_feature_io_page_aio_subpage, 10466 driver_read_support) != 5); 10467 BUILD_BUG_ON(offsetof(struct bmic_sense_feature_io_page_aio_subpage, 10468 firmware_write_support) != 6); 10469 BUILD_BUG_ON(offsetof(struct bmic_sense_feature_io_page_aio_subpage, 10470 driver_write_support) != 7); 10471 BUILD_BUG_ON(offsetof(struct bmic_sense_feature_io_page_aio_subpage, 10472 max_transfer_encrypted_sas_sata) != 8); 10473 BUILD_BUG_ON(offsetof(struct bmic_sense_feature_io_page_aio_subpage, 10474 max_transfer_encrypted_nvme) != 10); 10475 BUILD_BUG_ON(offsetof(struct bmic_sense_feature_io_page_aio_subpage, 10476 max_write_raid_5_6) != 12); 10477 BUILD_BUG_ON(offsetof(struct bmic_sense_feature_io_page_aio_subpage, 10478 max_write_raid_1_10_2drive) != 14); 10479 BUILD_BUG_ON(offsetof(struct bmic_sense_feature_io_page_aio_subpage, 10480 max_write_raid_1_10_3drive) != 16); 10481 10482 BUILD_BUG_ON(PQI_ADMIN_IQ_NUM_ELEMENTS > 255); 10483 BUILD_BUG_ON(PQI_ADMIN_OQ_NUM_ELEMENTS > 255); 10484 BUILD_BUG_ON(PQI_ADMIN_IQ_ELEMENT_LENGTH % 10485 PQI_QUEUE_ELEMENT_LENGTH_ALIGNMENT != 0); 10486 BUILD_BUG_ON(PQI_ADMIN_OQ_ELEMENT_LENGTH % 10487 PQI_QUEUE_ELEMENT_LENGTH_ALIGNMENT != 0); 10488 BUILD_BUG_ON(PQI_OPERATIONAL_IQ_ELEMENT_LENGTH > 1048560); 10489 BUILD_BUG_ON(PQI_OPERATIONAL_IQ_ELEMENT_LENGTH % 10490 PQI_QUEUE_ELEMENT_LENGTH_ALIGNMENT != 0); 10491 BUILD_BUG_ON(PQI_OPERATIONAL_OQ_ELEMENT_LENGTH > 1048560); 10492 BUILD_BUG_ON(PQI_OPERATIONAL_OQ_ELEMENT_LENGTH % 10493 PQI_QUEUE_ELEMENT_LENGTH_ALIGNMENT != 0); 10494 10495 BUILD_BUG_ON(PQI_RESERVED_IO_SLOTS >= PQI_MAX_OUTSTANDING_REQUESTS); 10496 BUILD_BUG_ON(PQI_RESERVED_IO_SLOTS >= 10497 PQI_MAX_OUTSTANDING_REQUESTS_KDUMP); 10498 } 10499