1// SPDX-License-Identifier: GPL-2.0 2/* 3 * driver for Microchip PQI-based storage controllers 4 * Copyright (c) 2019-2023 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 "2.1.26-030" 37#define DRIVER_MAJOR 2 38#define DRIVER_MINOR 1 39#define DRIVER_RELEASE 26 40#define DRIVER_REVISION 30 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#define PQI_NO_COMPLETION ((void *)-1) 52 53MODULE_AUTHOR("Microchip"); 54MODULE_DESCRIPTION("Driver for Microchip Smart Family Controller version " 55 DRIVER_VERSION); 56MODULE_VERSION(DRIVER_VERSION); 57MODULE_LICENSE("GPL"); 58 59struct pqi_cmd_priv { 60 int this_residual; 61}; 62 63static struct pqi_cmd_priv *pqi_cmd_priv(struct scsi_cmnd *cmd) 64{ 65 return scsi_cmd_priv(cmd); 66} 67 68static void pqi_verify_structures(void); 69static void pqi_take_ctrl_offline(struct pqi_ctrl_info *ctrl_info, 70 enum pqi_ctrl_shutdown_reason ctrl_shutdown_reason); 71static void pqi_ctrl_offline_worker(struct work_struct *work); 72static int pqi_scan_scsi_devices(struct pqi_ctrl_info *ctrl_info); 73static void pqi_scan_start(struct Scsi_Host *shost); 74static void pqi_start_io(struct pqi_ctrl_info *ctrl_info, 75 struct pqi_queue_group *queue_group, enum pqi_io_path path, 76 struct pqi_io_request *io_request); 77static int pqi_submit_raid_request_synchronous(struct pqi_ctrl_info *ctrl_info, 78 struct pqi_iu_header *request, unsigned int flags, 79 struct pqi_raid_error_info *error_info); 80static int pqi_aio_submit_io(struct pqi_ctrl_info *ctrl_info, 81 struct scsi_cmnd *scmd, u32 aio_handle, u8 *cdb, 82 unsigned int cdb_length, struct pqi_queue_group *queue_group, 83 struct pqi_encryption_info *encryption_info, bool raid_bypass, bool io_high_prio); 84static int pqi_aio_submit_r1_write_io(struct pqi_ctrl_info *ctrl_info, 85 struct scsi_cmnd *scmd, struct pqi_queue_group *queue_group, 86 struct pqi_encryption_info *encryption_info, struct pqi_scsi_dev *device, 87 struct pqi_scsi_dev_raid_map_data *rmd); 88static int pqi_aio_submit_r56_write_io(struct pqi_ctrl_info *ctrl_info, 89 struct scsi_cmnd *scmd, struct pqi_queue_group *queue_group, 90 struct pqi_encryption_info *encryption_info, struct pqi_scsi_dev *device, 91 struct pqi_scsi_dev_raid_map_data *rmd); 92static void pqi_ofa_ctrl_quiesce(struct pqi_ctrl_info *ctrl_info); 93static void pqi_ofa_ctrl_unquiesce(struct pqi_ctrl_info *ctrl_info); 94static int pqi_ofa_ctrl_restart(struct pqi_ctrl_info *ctrl_info, unsigned int delay_secs); 95static void pqi_ofa_setup_host_buffer(struct pqi_ctrl_info *ctrl_info); 96static void pqi_ofa_free_host_buffer(struct pqi_ctrl_info *ctrl_info); 97static int pqi_ofa_host_memory_update(struct pqi_ctrl_info *ctrl_info); 98static int pqi_device_wait_for_pending_io(struct pqi_ctrl_info *ctrl_info, 99 struct pqi_scsi_dev *device, u8 lun, unsigned long timeout_msecs); 100static void pqi_fail_all_outstanding_requests(struct pqi_ctrl_info *ctrl_info); 101static void pqi_tmf_worker(struct work_struct *work); 102 103/* for flags argument to pqi_submit_raid_request_synchronous() */ 104#define PQI_SYNC_FLAGS_INTERRUPTABLE 0x1 105 106static struct scsi_transport_template *pqi_sas_transport_template; 107 108static atomic_t pqi_controller_count = ATOMIC_INIT(0); 109 110enum pqi_lockup_action { 111 NONE, 112 REBOOT, 113 PANIC 114}; 115 116static enum pqi_lockup_action pqi_lockup_action = NONE; 117 118static struct { 119 enum pqi_lockup_action action; 120 char *name; 121} pqi_lockup_actions[] = { 122 { 123 .action = NONE, 124 .name = "none", 125 }, 126 { 127 .action = REBOOT, 128 .name = "reboot", 129 }, 130 { 131 .action = PANIC, 132 .name = "panic", 133 }, 134}; 135 136static unsigned int pqi_supported_event_types[] = { 137 PQI_EVENT_TYPE_HOTPLUG, 138 PQI_EVENT_TYPE_HARDWARE, 139 PQI_EVENT_TYPE_PHYSICAL_DEVICE, 140 PQI_EVENT_TYPE_LOGICAL_DEVICE, 141 PQI_EVENT_TYPE_OFA, 142 PQI_EVENT_TYPE_AIO_STATE_CHANGE, 143 PQI_EVENT_TYPE_AIO_CONFIG_CHANGE, 144}; 145 146static int pqi_disable_device_id_wildcards; 147module_param_named(disable_device_id_wildcards, 148 pqi_disable_device_id_wildcards, int, 0644); 149MODULE_PARM_DESC(disable_device_id_wildcards, 150 "Disable device ID wildcards."); 151 152static int pqi_disable_heartbeat; 153module_param_named(disable_heartbeat, 154 pqi_disable_heartbeat, int, 0644); 155MODULE_PARM_DESC(disable_heartbeat, 156 "Disable heartbeat."); 157 158static int pqi_disable_ctrl_shutdown; 159module_param_named(disable_ctrl_shutdown, 160 pqi_disable_ctrl_shutdown, int, 0644); 161MODULE_PARM_DESC(disable_ctrl_shutdown, 162 "Disable controller shutdown when controller locked up."); 163 164static char *pqi_lockup_action_param; 165module_param_named(lockup_action, 166 pqi_lockup_action_param, charp, 0644); 167MODULE_PARM_DESC(lockup_action, "Action to take when controller locked up.\n" 168 "\t\tSupported: none, reboot, panic\n" 169 "\t\tDefault: none"); 170 171static int pqi_expose_ld_first; 172module_param_named(expose_ld_first, 173 pqi_expose_ld_first, int, 0644); 174MODULE_PARM_DESC(expose_ld_first, "Expose logical drives before physical drives."); 175 176static int pqi_hide_vsep; 177module_param_named(hide_vsep, 178 pqi_hide_vsep, int, 0644); 179MODULE_PARM_DESC(hide_vsep, "Hide the virtual SEP for direct attached drives."); 180 181static int pqi_disable_managed_interrupts; 182module_param_named(disable_managed_interrupts, 183 pqi_disable_managed_interrupts, int, 0644); 184MODULE_PARM_DESC(disable_managed_interrupts, 185 "Disable the kernel automatically assigning SMP affinity to IRQs."); 186 187static unsigned int pqi_ctrl_ready_timeout_secs; 188module_param_named(ctrl_ready_timeout, 189 pqi_ctrl_ready_timeout_secs, uint, 0644); 190MODULE_PARM_DESC(ctrl_ready_timeout, 191 "Timeout in seconds for driver to wait for controller ready."); 192 193static char *raid_levels[] = { 194 "RAID-0", 195 "RAID-4", 196 "RAID-1(1+0)", 197 "RAID-5", 198 "RAID-5+1", 199 "RAID-6", 200 "RAID-1(Triple)", 201}; 202 203static char *pqi_raid_level_to_string(u8 raid_level) 204{ 205 if (raid_level < ARRAY_SIZE(raid_levels)) 206 return raid_levels[raid_level]; 207 208 return "RAID UNKNOWN"; 209} 210 211#define SA_RAID_0 0 212#define SA_RAID_4 1 213#define SA_RAID_1 2 /* also used for RAID 10 */ 214#define SA_RAID_5 3 /* also used for RAID 50 */ 215#define SA_RAID_51 4 216#define SA_RAID_6 5 /* also used for RAID 60 */ 217#define SA_RAID_TRIPLE 6 /* also used for RAID 1+0 Triple */ 218#define SA_RAID_MAX SA_RAID_TRIPLE 219#define SA_RAID_UNKNOWN 0xff 220 221static inline void pqi_scsi_done(struct scsi_cmnd *scmd) 222{ 223 pqi_prep_for_scsi_done(scmd); 224 scsi_done(scmd); 225} 226 227static inline void pqi_disable_write_same(struct scsi_device *sdev) 228{ 229 sdev->no_write_same = 1; 230} 231 232static inline bool pqi_scsi3addr_equal(u8 *scsi3addr1, u8 *scsi3addr2) 233{ 234 return memcmp(scsi3addr1, scsi3addr2, 8) == 0; 235} 236 237static inline bool pqi_is_logical_device(struct pqi_scsi_dev *device) 238{ 239 return !device->is_physical_device; 240} 241 242static inline bool pqi_is_external_raid_addr(u8 *scsi3addr) 243{ 244 return scsi3addr[2] != 0; 245} 246 247static inline bool pqi_ctrl_offline(struct pqi_ctrl_info *ctrl_info) 248{ 249 return !ctrl_info->controller_online; 250} 251 252static inline void pqi_check_ctrl_health(struct pqi_ctrl_info *ctrl_info) 253{ 254 if (ctrl_info->controller_online) 255 if (!sis_is_firmware_running(ctrl_info)) 256 pqi_take_ctrl_offline(ctrl_info, PQI_FIRMWARE_KERNEL_NOT_UP); 257} 258 259static inline bool pqi_is_hba_lunid(u8 *scsi3addr) 260{ 261 return pqi_scsi3addr_equal(scsi3addr, RAID_CTLR_LUNID); 262} 263 264#define PQI_DRIVER_SCRATCH_PQI_MODE 0x1 265#define PQI_DRIVER_SCRATCH_FW_TRIAGE_SUPPORTED 0x2 266 267static inline enum pqi_ctrl_mode pqi_get_ctrl_mode(struct pqi_ctrl_info *ctrl_info) 268{ 269 return sis_read_driver_scratch(ctrl_info) & PQI_DRIVER_SCRATCH_PQI_MODE ? PQI_MODE : SIS_MODE; 270} 271 272static inline void pqi_save_ctrl_mode(struct pqi_ctrl_info *ctrl_info, 273 enum pqi_ctrl_mode mode) 274{ 275 u32 driver_scratch; 276 277 driver_scratch = sis_read_driver_scratch(ctrl_info); 278 279 if (mode == PQI_MODE) 280 driver_scratch |= PQI_DRIVER_SCRATCH_PQI_MODE; 281 else 282 driver_scratch &= ~PQI_DRIVER_SCRATCH_PQI_MODE; 283 284 sis_write_driver_scratch(ctrl_info, driver_scratch); 285} 286 287static inline bool pqi_is_fw_triage_supported(struct pqi_ctrl_info *ctrl_info) 288{ 289 return (sis_read_driver_scratch(ctrl_info) & PQI_DRIVER_SCRATCH_FW_TRIAGE_SUPPORTED) != 0; 290} 291 292static inline void pqi_save_fw_triage_setting(struct pqi_ctrl_info *ctrl_info, bool is_supported) 293{ 294 u32 driver_scratch; 295 296 driver_scratch = sis_read_driver_scratch(ctrl_info); 297 298 if (is_supported) 299 driver_scratch |= PQI_DRIVER_SCRATCH_FW_TRIAGE_SUPPORTED; 300 else 301 driver_scratch &= ~PQI_DRIVER_SCRATCH_FW_TRIAGE_SUPPORTED; 302 303 sis_write_driver_scratch(ctrl_info, driver_scratch); 304} 305 306static inline void pqi_ctrl_block_scan(struct pqi_ctrl_info *ctrl_info) 307{ 308 ctrl_info->scan_blocked = true; 309 mutex_lock(&ctrl_info->scan_mutex); 310} 311 312static inline void pqi_ctrl_unblock_scan(struct pqi_ctrl_info *ctrl_info) 313{ 314 ctrl_info->scan_blocked = false; 315 mutex_unlock(&ctrl_info->scan_mutex); 316} 317 318static inline bool pqi_ctrl_scan_blocked(struct pqi_ctrl_info *ctrl_info) 319{ 320 return ctrl_info->scan_blocked; 321} 322 323static inline void pqi_ctrl_block_device_reset(struct pqi_ctrl_info *ctrl_info) 324{ 325 mutex_lock(&ctrl_info->lun_reset_mutex); 326} 327 328static inline void pqi_ctrl_unblock_device_reset(struct pqi_ctrl_info *ctrl_info) 329{ 330 mutex_unlock(&ctrl_info->lun_reset_mutex); 331} 332 333static inline void pqi_scsi_block_requests(struct pqi_ctrl_info *ctrl_info) 334{ 335 struct Scsi_Host *shost; 336 unsigned int num_loops; 337 int msecs_sleep; 338 339 shost = ctrl_info->scsi_host; 340 341 scsi_block_requests(shost); 342 343 num_loops = 0; 344 msecs_sleep = 20; 345 while (scsi_host_busy(shost)) { 346 num_loops++; 347 if (num_loops == 10) 348 msecs_sleep = 500; 349 msleep(msecs_sleep); 350 } 351} 352 353static inline void pqi_scsi_unblock_requests(struct pqi_ctrl_info *ctrl_info) 354{ 355 scsi_unblock_requests(ctrl_info->scsi_host); 356} 357 358static inline void pqi_ctrl_busy(struct pqi_ctrl_info *ctrl_info) 359{ 360 atomic_inc(&ctrl_info->num_busy_threads); 361} 362 363static inline void pqi_ctrl_unbusy(struct pqi_ctrl_info *ctrl_info) 364{ 365 atomic_dec(&ctrl_info->num_busy_threads); 366} 367 368static inline bool pqi_ctrl_blocked(struct pqi_ctrl_info *ctrl_info) 369{ 370 return ctrl_info->block_requests; 371} 372 373static inline void pqi_ctrl_block_requests(struct pqi_ctrl_info *ctrl_info) 374{ 375 ctrl_info->block_requests = true; 376} 377 378static inline void pqi_ctrl_unblock_requests(struct pqi_ctrl_info *ctrl_info) 379{ 380 ctrl_info->block_requests = false; 381 wake_up_all(&ctrl_info->block_requests_wait); 382} 383 384static void pqi_wait_if_ctrl_blocked(struct pqi_ctrl_info *ctrl_info) 385{ 386 if (!pqi_ctrl_blocked(ctrl_info)) 387 return; 388 389 atomic_inc(&ctrl_info->num_blocked_threads); 390 wait_event(ctrl_info->block_requests_wait, 391 !pqi_ctrl_blocked(ctrl_info)); 392 atomic_dec(&ctrl_info->num_blocked_threads); 393} 394 395#define PQI_QUIESCE_WARNING_TIMEOUT_SECS 10 396 397static inline void pqi_ctrl_wait_until_quiesced(struct pqi_ctrl_info *ctrl_info) 398{ 399 unsigned long start_jiffies; 400 unsigned long warning_timeout; 401 bool displayed_warning; 402 403 displayed_warning = false; 404 start_jiffies = jiffies; 405 warning_timeout = (PQI_QUIESCE_WARNING_TIMEOUT_SECS * HZ) + start_jiffies; 406 407 while (atomic_read(&ctrl_info->num_busy_threads) > 408 atomic_read(&ctrl_info->num_blocked_threads)) { 409 if (time_after(jiffies, warning_timeout)) { 410 dev_warn(&ctrl_info->pci_dev->dev, 411 "waiting %u seconds for driver activity to quiesce\n", 412 jiffies_to_msecs(jiffies - start_jiffies) / 1000); 413 displayed_warning = true; 414 warning_timeout = (PQI_QUIESCE_WARNING_TIMEOUT_SECS * HZ) + jiffies; 415 } 416 usleep_range(1000, 2000); 417 } 418 419 if (displayed_warning) 420 dev_warn(&ctrl_info->pci_dev->dev, 421 "driver activity quiesced after waiting for %u seconds\n", 422 jiffies_to_msecs(jiffies - start_jiffies) / 1000); 423} 424 425static inline bool pqi_device_offline(struct pqi_scsi_dev *device) 426{ 427 return device->device_offline; 428} 429 430static inline void pqi_ctrl_ofa_start(struct pqi_ctrl_info *ctrl_info) 431{ 432 mutex_lock(&ctrl_info->ofa_mutex); 433} 434 435static inline void pqi_ctrl_ofa_done(struct pqi_ctrl_info *ctrl_info) 436{ 437 mutex_unlock(&ctrl_info->ofa_mutex); 438} 439 440static inline void pqi_wait_until_ofa_finished(struct pqi_ctrl_info *ctrl_info) 441{ 442 mutex_lock(&ctrl_info->ofa_mutex); 443 mutex_unlock(&ctrl_info->ofa_mutex); 444} 445 446static inline bool pqi_ofa_in_progress(struct pqi_ctrl_info *ctrl_info) 447{ 448 return mutex_is_locked(&ctrl_info->ofa_mutex); 449} 450 451static inline void pqi_device_remove_start(struct pqi_scsi_dev *device) 452{ 453 device->in_remove = true; 454} 455 456static inline bool pqi_device_in_remove(struct pqi_scsi_dev *device) 457{ 458 return device->in_remove; 459} 460 461static inline void pqi_device_reset_start(struct pqi_scsi_dev *device, u8 lun) 462{ 463 device->in_reset[lun] = true; 464} 465 466static inline void pqi_device_reset_done(struct pqi_scsi_dev *device, u8 lun) 467{ 468 device->in_reset[lun] = false; 469} 470 471static inline bool pqi_device_in_reset(struct pqi_scsi_dev *device, u8 lun) 472{ 473 return device->in_reset[lun]; 474} 475 476static inline int pqi_event_type_to_event_index(unsigned int event_type) 477{ 478 int index; 479 480 for (index = 0; index < ARRAY_SIZE(pqi_supported_event_types); index++) 481 if (event_type == pqi_supported_event_types[index]) 482 return index; 483 484 return -1; 485} 486 487static inline bool pqi_is_supported_event(unsigned int event_type) 488{ 489 return pqi_event_type_to_event_index(event_type) != -1; 490} 491 492static inline void pqi_schedule_rescan_worker_with_delay(struct pqi_ctrl_info *ctrl_info, 493 unsigned long delay) 494{ 495 if (pqi_ctrl_offline(ctrl_info)) 496 return; 497 498 schedule_delayed_work(&ctrl_info->rescan_work, delay); 499} 500 501static inline void pqi_schedule_rescan_worker(struct pqi_ctrl_info *ctrl_info) 502{ 503 pqi_schedule_rescan_worker_with_delay(ctrl_info, 0); 504} 505 506#define PQI_RESCAN_WORK_DELAY (10 * HZ) 507 508static inline void pqi_schedule_rescan_worker_delayed(struct pqi_ctrl_info *ctrl_info) 509{ 510 pqi_schedule_rescan_worker_with_delay(ctrl_info, PQI_RESCAN_WORK_DELAY); 511} 512 513static inline void pqi_cancel_rescan_worker(struct pqi_ctrl_info *ctrl_info) 514{ 515 cancel_delayed_work_sync(&ctrl_info->rescan_work); 516} 517 518static inline u32 pqi_read_heartbeat_counter(struct pqi_ctrl_info *ctrl_info) 519{ 520 if (!ctrl_info->heartbeat_counter) 521 return 0; 522 523 return readl(ctrl_info->heartbeat_counter); 524} 525 526static inline u8 pqi_read_soft_reset_status(struct pqi_ctrl_info *ctrl_info) 527{ 528 return readb(ctrl_info->soft_reset_status); 529} 530 531static inline void pqi_clear_soft_reset_status(struct pqi_ctrl_info *ctrl_info) 532{ 533 u8 status; 534 535 status = pqi_read_soft_reset_status(ctrl_info); 536 status &= ~PQI_SOFT_RESET_ABORT; 537 writeb(status, ctrl_info->soft_reset_status); 538} 539 540static inline bool pqi_is_io_high_priority(struct pqi_scsi_dev *device, struct scsi_cmnd *scmd) 541{ 542 bool io_high_prio; 543 int priority_class; 544 545 io_high_prio = false; 546 547 if (device->ncq_prio_enable) { 548 priority_class = 549 IOPRIO_PRIO_CLASS(req_get_ioprio(scsi_cmd_to_rq(scmd))); 550 if (priority_class == IOPRIO_CLASS_RT) { 551 /* Set NCQ priority for read/write commands. */ 552 switch (scmd->cmnd[0]) { 553 case WRITE_16: 554 case READ_16: 555 case WRITE_12: 556 case READ_12: 557 case WRITE_10: 558 case READ_10: 559 case WRITE_6: 560 case READ_6: 561 io_high_prio = true; 562 break; 563 } 564 } 565 } 566 567 return io_high_prio; 568} 569 570static int pqi_map_single(struct pci_dev *pci_dev, 571 struct pqi_sg_descriptor *sg_descriptor, void *buffer, 572 size_t buffer_length, enum dma_data_direction data_direction) 573{ 574 dma_addr_t bus_address; 575 576 if (!buffer || buffer_length == 0 || data_direction == DMA_NONE) 577 return 0; 578 579 bus_address = dma_map_single(&pci_dev->dev, buffer, buffer_length, 580 data_direction); 581 if (dma_mapping_error(&pci_dev->dev, bus_address)) 582 return -ENOMEM; 583 584 put_unaligned_le64((u64)bus_address, &sg_descriptor->address); 585 put_unaligned_le32(buffer_length, &sg_descriptor->length); 586 put_unaligned_le32(CISS_SG_LAST, &sg_descriptor->flags); 587 588 return 0; 589} 590 591static void pqi_pci_unmap(struct pci_dev *pci_dev, 592 struct pqi_sg_descriptor *descriptors, int num_descriptors, 593 enum dma_data_direction data_direction) 594{ 595 int i; 596 597 if (data_direction == DMA_NONE) 598 return; 599 600 for (i = 0; i < num_descriptors; i++) 601 dma_unmap_single(&pci_dev->dev, 602 (dma_addr_t)get_unaligned_le64(&descriptors[i].address), 603 get_unaligned_le32(&descriptors[i].length), 604 data_direction); 605} 606 607static int pqi_build_raid_path_request(struct pqi_ctrl_info *ctrl_info, 608 struct pqi_raid_path_request *request, u8 cmd, 609 u8 *scsi3addr, void *buffer, size_t buffer_length, 610 u16 vpd_page, enum dma_data_direction *dir) 611{ 612 u8 *cdb; 613 size_t cdb_length = buffer_length; 614 615 memset(request, 0, sizeof(*request)); 616 617 request->header.iu_type = PQI_REQUEST_IU_RAID_PATH_IO; 618 put_unaligned_le16(offsetof(struct pqi_raid_path_request, 619 sg_descriptors[1]) - PQI_REQUEST_HEADER_LENGTH, 620 &request->header.iu_length); 621 put_unaligned_le32(buffer_length, &request->buffer_length); 622 memcpy(request->lun_number, scsi3addr, sizeof(request->lun_number)); 623 request->task_attribute = SOP_TASK_ATTRIBUTE_SIMPLE; 624 request->additional_cdb_bytes_usage = SOP_ADDITIONAL_CDB_BYTES_0; 625 626 cdb = request->cdb; 627 628 switch (cmd) { 629 case INQUIRY: 630 request->data_direction = SOP_READ_FLAG; 631 cdb[0] = INQUIRY; 632 if (vpd_page & VPD_PAGE) { 633 cdb[1] = 0x1; 634 cdb[2] = (u8)vpd_page; 635 } 636 cdb[4] = (u8)cdb_length; 637 break; 638 case CISS_REPORT_LOG: 639 case CISS_REPORT_PHYS: 640 request->data_direction = SOP_READ_FLAG; 641 cdb[0] = cmd; 642 if (cmd == CISS_REPORT_PHYS) { 643 if (ctrl_info->rpl_extended_format_4_5_supported) 644 cdb[1] = CISS_REPORT_PHYS_FLAG_EXTENDED_FORMAT_4; 645 else 646 cdb[1] = CISS_REPORT_PHYS_FLAG_EXTENDED_FORMAT_2; 647 } else { 648 cdb[1] = ctrl_info->ciss_report_log_flags; 649 } 650 put_unaligned_be32(cdb_length, &cdb[6]); 651 break; 652 case CISS_GET_RAID_MAP: 653 request->data_direction = SOP_READ_FLAG; 654 cdb[0] = CISS_READ; 655 cdb[1] = CISS_GET_RAID_MAP; 656 put_unaligned_be32(cdb_length, &cdb[6]); 657 break; 658 case SA_FLUSH_CACHE: 659 request->header.driver_flags = PQI_DRIVER_NONBLOCKABLE_REQUEST; 660 request->data_direction = SOP_WRITE_FLAG; 661 cdb[0] = BMIC_WRITE; 662 cdb[6] = BMIC_FLUSH_CACHE; 663 put_unaligned_be16(cdb_length, &cdb[7]); 664 break; 665 case BMIC_SENSE_DIAG_OPTIONS: 666 cdb_length = 0; 667 fallthrough; 668 case BMIC_IDENTIFY_CONTROLLER: 669 case BMIC_IDENTIFY_PHYSICAL_DEVICE: 670 case BMIC_SENSE_SUBSYSTEM_INFORMATION: 671 case BMIC_SENSE_FEATURE: 672 request->data_direction = SOP_READ_FLAG; 673 cdb[0] = BMIC_READ; 674 cdb[6] = cmd; 675 put_unaligned_be16(cdb_length, &cdb[7]); 676 break; 677 case BMIC_SET_DIAG_OPTIONS: 678 cdb_length = 0; 679 fallthrough; 680 case BMIC_WRITE_HOST_WELLNESS: 681 request->data_direction = SOP_WRITE_FLAG; 682 cdb[0] = BMIC_WRITE; 683 cdb[6] = cmd; 684 put_unaligned_be16(cdb_length, &cdb[7]); 685 break; 686 case BMIC_CSMI_PASSTHRU: 687 request->data_direction = SOP_BIDIRECTIONAL; 688 cdb[0] = BMIC_WRITE; 689 cdb[5] = CSMI_CC_SAS_SMP_PASSTHRU; 690 cdb[6] = cmd; 691 put_unaligned_be16(cdb_length, &cdb[7]); 692 break; 693 default: 694 dev_err(&ctrl_info->pci_dev->dev, "unknown command 0x%c\n", cmd); 695 break; 696 } 697 698 switch (request->data_direction) { 699 case SOP_READ_FLAG: 700 *dir = DMA_FROM_DEVICE; 701 break; 702 case SOP_WRITE_FLAG: 703 *dir = DMA_TO_DEVICE; 704 break; 705 case SOP_NO_DIRECTION_FLAG: 706 *dir = DMA_NONE; 707 break; 708 default: 709 *dir = DMA_BIDIRECTIONAL; 710 break; 711 } 712 713 return pqi_map_single(ctrl_info->pci_dev, &request->sg_descriptors[0], 714 buffer, buffer_length, *dir); 715} 716 717static inline void pqi_reinit_io_request(struct pqi_io_request *io_request) 718{ 719 io_request->scmd = NULL; 720 io_request->status = 0; 721 io_request->error_info = NULL; 722 io_request->raid_bypass = false; 723} 724 725static inline struct pqi_io_request *pqi_alloc_io_request(struct pqi_ctrl_info *ctrl_info, struct scsi_cmnd *scmd) 726{ 727 struct pqi_io_request *io_request; 728 u16 i; 729 730 if (scmd) { /* SML I/O request */ 731 u32 blk_tag = blk_mq_unique_tag(scsi_cmd_to_rq(scmd)); 732 733 i = blk_mq_unique_tag_to_tag(blk_tag); 734 io_request = &ctrl_info->io_request_pool[i]; 735 if (atomic_inc_return(&io_request->refcount) > 1) { 736 atomic_dec(&io_request->refcount); 737 return NULL; 738 } 739 } else { /* IOCTL or driver internal request */ 740 /* 741 * benignly racy - may have to wait for an open slot. 742 * command slot range is scsi_ml_can_queue - 743 * [scsi_ml_can_queue + (PQI_RESERVED_IO_SLOTS - 1)] 744 */ 745 i = 0; 746 while (1) { 747 io_request = &ctrl_info->io_request_pool[ctrl_info->scsi_ml_can_queue + i]; 748 if (atomic_inc_return(&io_request->refcount) == 1) 749 break; 750 atomic_dec(&io_request->refcount); 751 i = (i + 1) % PQI_RESERVED_IO_SLOTS; 752 } 753 } 754 755 if (io_request) 756 pqi_reinit_io_request(io_request); 757 758 return io_request; 759} 760 761static void pqi_free_io_request(struct pqi_io_request *io_request) 762{ 763 atomic_dec(&io_request->refcount); 764} 765 766static int pqi_send_scsi_raid_request(struct pqi_ctrl_info *ctrl_info, u8 cmd, 767 u8 *scsi3addr, void *buffer, size_t buffer_length, u16 vpd_page, 768 struct pqi_raid_error_info *error_info) 769{ 770 int rc; 771 struct pqi_raid_path_request request; 772 enum dma_data_direction dir; 773 774 rc = pqi_build_raid_path_request(ctrl_info, &request, cmd, scsi3addr, 775 buffer, buffer_length, vpd_page, &dir); 776 if (rc) 777 return rc; 778 779 rc = pqi_submit_raid_request_synchronous(ctrl_info, &request.header, 0, error_info); 780 781 pqi_pci_unmap(ctrl_info->pci_dev, request.sg_descriptors, 1, dir); 782 783 return rc; 784} 785 786/* helper functions for pqi_send_scsi_raid_request */ 787 788static inline int pqi_send_ctrl_raid_request(struct pqi_ctrl_info *ctrl_info, 789 u8 cmd, void *buffer, size_t buffer_length) 790{ 791 return pqi_send_scsi_raid_request(ctrl_info, cmd, RAID_CTLR_LUNID, 792 buffer, buffer_length, 0, NULL); 793} 794 795static inline int pqi_send_ctrl_raid_with_error(struct pqi_ctrl_info *ctrl_info, 796 u8 cmd, void *buffer, size_t buffer_length, 797 struct pqi_raid_error_info *error_info) 798{ 799 return pqi_send_scsi_raid_request(ctrl_info, cmd, RAID_CTLR_LUNID, 800 buffer, buffer_length, 0, error_info); 801} 802 803static inline int pqi_identify_controller(struct pqi_ctrl_info *ctrl_info, 804 struct bmic_identify_controller *buffer) 805{ 806 return pqi_send_ctrl_raid_request(ctrl_info, BMIC_IDENTIFY_CONTROLLER, 807 buffer, sizeof(*buffer)); 808} 809 810static inline int pqi_sense_subsystem_info(struct pqi_ctrl_info *ctrl_info, 811 struct bmic_sense_subsystem_info *sense_info) 812{ 813 return pqi_send_ctrl_raid_request(ctrl_info, 814 BMIC_SENSE_SUBSYSTEM_INFORMATION, sense_info, 815 sizeof(*sense_info)); 816} 817 818static inline int pqi_scsi_inquiry(struct pqi_ctrl_info *ctrl_info, 819 u8 *scsi3addr, u16 vpd_page, void *buffer, size_t buffer_length) 820{ 821 return pqi_send_scsi_raid_request(ctrl_info, INQUIRY, scsi3addr, 822 buffer, buffer_length, vpd_page, NULL); 823} 824 825static int pqi_identify_physical_device(struct pqi_ctrl_info *ctrl_info, 826 struct pqi_scsi_dev *device, 827 struct bmic_identify_physical_device *buffer, size_t buffer_length) 828{ 829 int rc; 830 enum dma_data_direction dir; 831 u16 bmic_device_index; 832 struct pqi_raid_path_request request; 833 834 rc = pqi_build_raid_path_request(ctrl_info, &request, 835 BMIC_IDENTIFY_PHYSICAL_DEVICE, RAID_CTLR_LUNID, buffer, 836 buffer_length, 0, &dir); 837 if (rc) 838 return rc; 839 840 bmic_device_index = CISS_GET_DRIVE_NUMBER(device->scsi3addr); 841 request.cdb[2] = (u8)bmic_device_index; 842 request.cdb[9] = (u8)(bmic_device_index >> 8); 843 844 rc = pqi_submit_raid_request_synchronous(ctrl_info, &request.header, 0, NULL); 845 846 pqi_pci_unmap(ctrl_info->pci_dev, request.sg_descriptors, 1, dir); 847 848 return rc; 849} 850 851static inline u32 pqi_aio_limit_to_bytes(__le16 *limit) 852{ 853 u32 bytes; 854 855 bytes = get_unaligned_le16(limit); 856 if (bytes == 0) 857 bytes = ~0; 858 else 859 bytes *= 1024; 860 861 return bytes; 862} 863 864#pragma pack(1) 865 866struct bmic_sense_feature_buffer { 867 struct bmic_sense_feature_buffer_header header; 868 struct bmic_sense_feature_io_page_aio_subpage aio_subpage; 869}; 870 871#pragma pack() 872 873#define MINIMUM_AIO_SUBPAGE_BUFFER_LENGTH \ 874 offsetofend(struct bmic_sense_feature_buffer, \ 875 aio_subpage.max_write_raid_1_10_3drive) 876 877#define MINIMUM_AIO_SUBPAGE_LENGTH \ 878 (offsetofend(struct bmic_sense_feature_io_page_aio_subpage, \ 879 max_write_raid_1_10_3drive) - \ 880 sizeof_field(struct bmic_sense_feature_io_page_aio_subpage, header)) 881 882static int pqi_get_advanced_raid_bypass_config(struct pqi_ctrl_info *ctrl_info) 883{ 884 int rc; 885 enum dma_data_direction dir; 886 struct pqi_raid_path_request request; 887 struct bmic_sense_feature_buffer *buffer; 888 889 buffer = kmalloc(sizeof(*buffer), GFP_KERNEL); 890 if (!buffer) 891 return -ENOMEM; 892 893 rc = pqi_build_raid_path_request(ctrl_info, &request, BMIC_SENSE_FEATURE, RAID_CTLR_LUNID, 894 buffer, sizeof(*buffer), 0, &dir); 895 if (rc) 896 goto error; 897 898 request.cdb[2] = BMIC_SENSE_FEATURE_IO_PAGE; 899 request.cdb[3] = BMIC_SENSE_FEATURE_IO_PAGE_AIO_SUBPAGE; 900 901 rc = pqi_submit_raid_request_synchronous(ctrl_info, &request.header, 0, NULL); 902 903 pqi_pci_unmap(ctrl_info->pci_dev, request.sg_descriptors, 1, dir); 904 905 if (rc) 906 goto error; 907 908 if (buffer->header.page_code != BMIC_SENSE_FEATURE_IO_PAGE || 909 buffer->header.subpage_code != 910 BMIC_SENSE_FEATURE_IO_PAGE_AIO_SUBPAGE || 911 get_unaligned_le16(&buffer->header.buffer_length) < 912 MINIMUM_AIO_SUBPAGE_BUFFER_LENGTH || 913 buffer->aio_subpage.header.page_code != 914 BMIC_SENSE_FEATURE_IO_PAGE || 915 buffer->aio_subpage.header.subpage_code != 916 BMIC_SENSE_FEATURE_IO_PAGE_AIO_SUBPAGE || 917 get_unaligned_le16(&buffer->aio_subpage.header.page_length) < 918 MINIMUM_AIO_SUBPAGE_LENGTH) { 919 goto error; 920 } 921 922 ctrl_info->max_transfer_encrypted_sas_sata = 923 pqi_aio_limit_to_bytes( 924 &buffer->aio_subpage.max_transfer_encrypted_sas_sata); 925 926 ctrl_info->max_transfer_encrypted_nvme = 927 pqi_aio_limit_to_bytes( 928 &buffer->aio_subpage.max_transfer_encrypted_nvme); 929 930 ctrl_info->max_write_raid_5_6 = 931 pqi_aio_limit_to_bytes( 932 &buffer->aio_subpage.max_write_raid_5_6); 933 934 ctrl_info->max_write_raid_1_10_2drive = 935 pqi_aio_limit_to_bytes( 936 &buffer->aio_subpage.max_write_raid_1_10_2drive); 937 938 ctrl_info->max_write_raid_1_10_3drive = 939 pqi_aio_limit_to_bytes( 940 &buffer->aio_subpage.max_write_raid_1_10_3drive); 941 942error: 943 kfree(buffer); 944 945 return rc; 946} 947 948static int pqi_flush_cache(struct pqi_ctrl_info *ctrl_info, 949 enum bmic_flush_cache_shutdown_event shutdown_event) 950{ 951 int rc; 952 struct bmic_flush_cache *flush_cache; 953 954 flush_cache = kzalloc(sizeof(*flush_cache), GFP_KERNEL); 955 if (!flush_cache) 956 return -ENOMEM; 957 958 flush_cache->shutdown_event = shutdown_event; 959 960 rc = pqi_send_ctrl_raid_request(ctrl_info, SA_FLUSH_CACHE, flush_cache, 961 sizeof(*flush_cache)); 962 963 kfree(flush_cache); 964 965 return rc; 966} 967 968int pqi_csmi_smp_passthru(struct pqi_ctrl_info *ctrl_info, 969 struct bmic_csmi_smp_passthru_buffer *buffer, size_t buffer_length, 970 struct pqi_raid_error_info *error_info) 971{ 972 return pqi_send_ctrl_raid_with_error(ctrl_info, BMIC_CSMI_PASSTHRU, 973 buffer, buffer_length, error_info); 974} 975 976#define PQI_FETCH_PTRAID_DATA (1 << 31) 977 978static int pqi_set_diag_rescan(struct pqi_ctrl_info *ctrl_info) 979{ 980 int rc; 981 struct bmic_diag_options *diag; 982 983 diag = kzalloc(sizeof(*diag), GFP_KERNEL); 984 if (!diag) 985 return -ENOMEM; 986 987 rc = pqi_send_ctrl_raid_request(ctrl_info, BMIC_SENSE_DIAG_OPTIONS, 988 diag, sizeof(*diag)); 989 if (rc) 990 goto out; 991 992 diag->options |= cpu_to_le32(PQI_FETCH_PTRAID_DATA); 993 994 rc = pqi_send_ctrl_raid_request(ctrl_info, BMIC_SET_DIAG_OPTIONS, diag, 995 sizeof(*diag)); 996 997out: 998 kfree(diag); 999 1000 return rc; 1001} 1002 1003static inline int pqi_write_host_wellness(struct pqi_ctrl_info *ctrl_info, 1004 void *buffer, size_t buffer_length) 1005{ 1006 return pqi_send_ctrl_raid_request(ctrl_info, BMIC_WRITE_HOST_WELLNESS, 1007 buffer, buffer_length); 1008} 1009 1010#pragma pack(1) 1011 1012struct bmic_host_wellness_driver_version { 1013 u8 start_tag[4]; 1014 u8 driver_version_tag[2]; 1015 __le16 driver_version_length; 1016 char driver_version[32]; 1017 u8 dont_write_tag[2]; 1018 u8 end_tag[2]; 1019}; 1020 1021#pragma pack() 1022 1023static int pqi_write_driver_version_to_host_wellness( 1024 struct pqi_ctrl_info *ctrl_info) 1025{ 1026 int rc; 1027 struct bmic_host_wellness_driver_version *buffer; 1028 size_t buffer_length; 1029 1030 buffer_length = sizeof(*buffer); 1031 1032 buffer = kmalloc(buffer_length, GFP_KERNEL); 1033 if (!buffer) 1034 return -ENOMEM; 1035 1036 buffer->start_tag[0] = '<'; 1037 buffer->start_tag[1] = 'H'; 1038 buffer->start_tag[2] = 'W'; 1039 buffer->start_tag[3] = '>'; 1040 buffer->driver_version_tag[0] = 'D'; 1041 buffer->driver_version_tag[1] = 'V'; 1042 put_unaligned_le16(sizeof(buffer->driver_version), 1043 &buffer->driver_version_length); 1044 strncpy(buffer->driver_version, "Linux " DRIVER_VERSION, 1045 sizeof(buffer->driver_version) - 1); 1046 buffer->driver_version[sizeof(buffer->driver_version) - 1] = '\0'; 1047 buffer->dont_write_tag[0] = 'D'; 1048 buffer->dont_write_tag[1] = 'W'; 1049 buffer->end_tag[0] = 'Z'; 1050 buffer->end_tag[1] = 'Z'; 1051 1052 rc = pqi_write_host_wellness(ctrl_info, buffer, buffer_length); 1053 1054 kfree(buffer); 1055 1056 return rc; 1057} 1058 1059#pragma pack(1) 1060 1061struct bmic_host_wellness_time { 1062 u8 start_tag[4]; 1063 u8 time_tag[2]; 1064 __le16 time_length; 1065 u8 time[8]; 1066 u8 dont_write_tag[2]; 1067 u8 end_tag[2]; 1068}; 1069 1070#pragma pack() 1071 1072static int pqi_write_current_time_to_host_wellness( 1073 struct pqi_ctrl_info *ctrl_info) 1074{ 1075 int rc; 1076 struct bmic_host_wellness_time *buffer; 1077 size_t buffer_length; 1078 time64_t local_time; 1079 unsigned int year; 1080 struct tm tm; 1081 1082 buffer_length = sizeof(*buffer); 1083 1084 buffer = kmalloc(buffer_length, GFP_KERNEL); 1085 if (!buffer) 1086 return -ENOMEM; 1087 1088 buffer->start_tag[0] = '<'; 1089 buffer->start_tag[1] = 'H'; 1090 buffer->start_tag[2] = 'W'; 1091 buffer->start_tag[3] = '>'; 1092 buffer->time_tag[0] = 'T'; 1093 buffer->time_tag[1] = 'D'; 1094 put_unaligned_le16(sizeof(buffer->time), 1095 &buffer->time_length); 1096 1097 local_time = ktime_get_real_seconds(); 1098 time64_to_tm(local_time, -sys_tz.tz_minuteswest * 60, &tm); 1099 year = tm.tm_year + 1900; 1100 1101 buffer->time[0] = bin2bcd(tm.tm_hour); 1102 buffer->time[1] = bin2bcd(tm.tm_min); 1103 buffer->time[2] = bin2bcd(tm.tm_sec); 1104 buffer->time[3] = 0; 1105 buffer->time[4] = bin2bcd(tm.tm_mon + 1); 1106 buffer->time[5] = bin2bcd(tm.tm_mday); 1107 buffer->time[6] = bin2bcd(year / 100); 1108 buffer->time[7] = bin2bcd(year % 100); 1109 1110 buffer->dont_write_tag[0] = 'D'; 1111 buffer->dont_write_tag[1] = 'W'; 1112 buffer->end_tag[0] = 'Z'; 1113 buffer->end_tag[1] = 'Z'; 1114 1115 rc = pqi_write_host_wellness(ctrl_info, buffer, buffer_length); 1116 1117 kfree(buffer); 1118 1119 return rc; 1120} 1121 1122#define PQI_UPDATE_TIME_WORK_INTERVAL (24UL * 60 * 60 * HZ) 1123 1124static void pqi_update_time_worker(struct work_struct *work) 1125{ 1126 int rc; 1127 struct pqi_ctrl_info *ctrl_info; 1128 1129 ctrl_info = container_of(to_delayed_work(work), struct pqi_ctrl_info, 1130 update_time_work); 1131 1132 rc = pqi_write_current_time_to_host_wellness(ctrl_info); 1133 if (rc) 1134 dev_warn(&ctrl_info->pci_dev->dev, 1135 "error updating time on controller\n"); 1136 1137 schedule_delayed_work(&ctrl_info->update_time_work, 1138 PQI_UPDATE_TIME_WORK_INTERVAL); 1139} 1140 1141static inline void pqi_schedule_update_time_worker(struct pqi_ctrl_info *ctrl_info) 1142{ 1143 schedule_delayed_work(&ctrl_info->update_time_work, 0); 1144} 1145 1146static inline void pqi_cancel_update_time_worker(struct pqi_ctrl_info *ctrl_info) 1147{ 1148 cancel_delayed_work_sync(&ctrl_info->update_time_work); 1149} 1150 1151static inline int pqi_report_luns(struct pqi_ctrl_info *ctrl_info, u8 cmd, void *buffer, 1152 size_t buffer_length) 1153{ 1154 return pqi_send_ctrl_raid_request(ctrl_info, cmd, buffer, buffer_length); 1155} 1156 1157static int pqi_report_phys_logical_luns(struct pqi_ctrl_info *ctrl_info, u8 cmd, void **buffer) 1158{ 1159 int rc; 1160 size_t lun_list_length; 1161 size_t lun_data_length; 1162 size_t new_lun_list_length; 1163 void *lun_data = NULL; 1164 struct report_lun_header *report_lun_header; 1165 1166 report_lun_header = kmalloc(sizeof(*report_lun_header), GFP_KERNEL); 1167 if (!report_lun_header) { 1168 rc = -ENOMEM; 1169 goto out; 1170 } 1171 1172 rc = pqi_report_luns(ctrl_info, cmd, report_lun_header, sizeof(*report_lun_header)); 1173 if (rc) 1174 goto out; 1175 1176 lun_list_length = get_unaligned_be32(&report_lun_header->list_length); 1177 1178again: 1179 lun_data_length = sizeof(struct report_lun_header) + lun_list_length; 1180 1181 lun_data = kmalloc(lun_data_length, GFP_KERNEL); 1182 if (!lun_data) { 1183 rc = -ENOMEM; 1184 goto out; 1185 } 1186 1187 if (lun_list_length == 0) { 1188 memcpy(lun_data, report_lun_header, sizeof(*report_lun_header)); 1189 goto out; 1190 } 1191 1192 rc = pqi_report_luns(ctrl_info, cmd, lun_data, lun_data_length); 1193 if (rc) 1194 goto out; 1195 1196 new_lun_list_length = 1197 get_unaligned_be32(&((struct report_lun_header *)lun_data)->list_length); 1198 1199 if (new_lun_list_length > lun_list_length) { 1200 lun_list_length = new_lun_list_length; 1201 kfree(lun_data); 1202 goto again; 1203 } 1204 1205out: 1206 kfree(report_lun_header); 1207 1208 if (rc) { 1209 kfree(lun_data); 1210 lun_data = NULL; 1211 } 1212 1213 *buffer = lun_data; 1214 1215 return rc; 1216} 1217 1218static inline int pqi_report_phys_luns(struct pqi_ctrl_info *ctrl_info, void **buffer) 1219{ 1220 int rc; 1221 unsigned int i; 1222 u8 rpl_response_format; 1223 u32 num_physicals; 1224 void *rpl_list; 1225 struct report_lun_header *rpl_header; 1226 struct report_phys_lun_8byte_wwid_list *rpl_8byte_wwid_list; 1227 struct report_phys_lun_16byte_wwid_list *rpl_16byte_wwid_list; 1228 1229 rc = pqi_report_phys_logical_luns(ctrl_info, CISS_REPORT_PHYS, &rpl_list); 1230 if (rc) 1231 return rc; 1232 1233 if (ctrl_info->rpl_extended_format_4_5_supported) { 1234 rpl_header = rpl_list; 1235 rpl_response_format = rpl_header->flags & CISS_REPORT_PHYS_FLAG_EXTENDED_FORMAT_MASK; 1236 if (rpl_response_format == CISS_REPORT_PHYS_FLAG_EXTENDED_FORMAT_4) { 1237 *buffer = rpl_list; 1238 return 0; 1239 } else if (rpl_response_format != CISS_REPORT_PHYS_FLAG_EXTENDED_FORMAT_2) { 1240 dev_err(&ctrl_info->pci_dev->dev, 1241 "RPL returned unsupported data format %u\n", 1242 rpl_response_format); 1243 return -EINVAL; 1244 } else { 1245 dev_warn(&ctrl_info->pci_dev->dev, 1246 "RPL returned extended format 2 instead of 4\n"); 1247 } 1248 } 1249 1250 rpl_8byte_wwid_list = rpl_list; 1251 num_physicals = get_unaligned_be32(&rpl_8byte_wwid_list->header.list_length) / sizeof(rpl_8byte_wwid_list->lun_entries[0]); 1252 1253 rpl_16byte_wwid_list = kmalloc(struct_size(rpl_16byte_wwid_list, lun_entries, 1254 num_physicals), GFP_KERNEL); 1255 if (!rpl_16byte_wwid_list) 1256 return -ENOMEM; 1257 1258 put_unaligned_be32(num_physicals * sizeof(struct report_phys_lun_16byte_wwid), 1259 &rpl_16byte_wwid_list->header.list_length); 1260 rpl_16byte_wwid_list->header.flags = rpl_8byte_wwid_list->header.flags; 1261 1262 for (i = 0; i < num_physicals; i++) { 1263 memcpy(&rpl_16byte_wwid_list->lun_entries[i].lunid, &rpl_8byte_wwid_list->lun_entries[i].lunid, sizeof(rpl_8byte_wwid_list->lun_entries[i].lunid)); 1264 memcpy(&rpl_16byte_wwid_list->lun_entries[i].wwid[0], &rpl_8byte_wwid_list->lun_entries[i].wwid, sizeof(rpl_8byte_wwid_list->lun_entries[i].wwid)); 1265 memset(&rpl_16byte_wwid_list->lun_entries[i].wwid[8], 0, 8); 1266 rpl_16byte_wwid_list->lun_entries[i].device_type = rpl_8byte_wwid_list->lun_entries[i].device_type; 1267 rpl_16byte_wwid_list->lun_entries[i].device_flags = rpl_8byte_wwid_list->lun_entries[i].device_flags; 1268 rpl_16byte_wwid_list->lun_entries[i].lun_count = rpl_8byte_wwid_list->lun_entries[i].lun_count; 1269 rpl_16byte_wwid_list->lun_entries[i].redundant_paths = rpl_8byte_wwid_list->lun_entries[i].redundant_paths; 1270 rpl_16byte_wwid_list->lun_entries[i].aio_handle = rpl_8byte_wwid_list->lun_entries[i].aio_handle; 1271 } 1272 1273 kfree(rpl_8byte_wwid_list); 1274 *buffer = rpl_16byte_wwid_list; 1275 1276 return 0; 1277} 1278 1279static inline int pqi_report_logical_luns(struct pqi_ctrl_info *ctrl_info, void **buffer) 1280{ 1281 return pqi_report_phys_logical_luns(ctrl_info, CISS_REPORT_LOG, buffer); 1282} 1283 1284static int pqi_get_device_lists(struct pqi_ctrl_info *ctrl_info, 1285 struct report_phys_lun_16byte_wwid_list **physdev_list, 1286 struct report_log_lun_list **logdev_list) 1287{ 1288 int rc; 1289 size_t logdev_list_length; 1290 size_t logdev_data_length; 1291 struct report_log_lun_list *internal_logdev_list; 1292 struct report_log_lun_list *logdev_data; 1293 struct report_lun_header report_lun_header; 1294 1295 rc = pqi_report_phys_luns(ctrl_info, (void **)physdev_list); 1296 if (rc) 1297 dev_err(&ctrl_info->pci_dev->dev, 1298 "report physical LUNs failed\n"); 1299 1300 rc = pqi_report_logical_luns(ctrl_info, (void **)logdev_list); 1301 if (rc) 1302 dev_err(&ctrl_info->pci_dev->dev, 1303 "report logical LUNs failed\n"); 1304 1305 /* 1306 * Tack the controller itself onto the end of the logical device list 1307 * by adding a list entry that is all zeros. 1308 */ 1309 1310 logdev_data = *logdev_list; 1311 1312 if (logdev_data) { 1313 logdev_list_length = 1314 get_unaligned_be32(&logdev_data->header.list_length); 1315 } else { 1316 memset(&report_lun_header, 0, sizeof(report_lun_header)); 1317 logdev_data = 1318 (struct report_log_lun_list *)&report_lun_header; 1319 logdev_list_length = 0; 1320 } 1321 1322 logdev_data_length = sizeof(struct report_lun_header) + 1323 logdev_list_length; 1324 1325 internal_logdev_list = kmalloc(logdev_data_length + 1326 sizeof(struct report_log_lun), GFP_KERNEL); 1327 if (!internal_logdev_list) { 1328 kfree(*logdev_list); 1329 *logdev_list = NULL; 1330 return -ENOMEM; 1331 } 1332 1333 memcpy(internal_logdev_list, logdev_data, logdev_data_length); 1334 memset((u8 *)internal_logdev_list + logdev_data_length, 0, 1335 sizeof(struct report_log_lun)); 1336 put_unaligned_be32(logdev_list_length + 1337 sizeof(struct report_log_lun), 1338 &internal_logdev_list->header.list_length); 1339 1340 kfree(*logdev_list); 1341 *logdev_list = internal_logdev_list; 1342 1343 return 0; 1344} 1345 1346static inline void pqi_set_bus_target_lun(struct pqi_scsi_dev *device, 1347 int bus, int target, int lun) 1348{ 1349 device->bus = bus; 1350 device->target = target; 1351 device->lun = lun; 1352} 1353 1354static void pqi_assign_bus_target_lun(struct pqi_scsi_dev *device) 1355{ 1356 u8 *scsi3addr; 1357 u32 lunid; 1358 int bus; 1359 int target; 1360 int lun; 1361 1362 scsi3addr = device->scsi3addr; 1363 lunid = get_unaligned_le32(scsi3addr); 1364 1365 if (pqi_is_hba_lunid(scsi3addr)) { 1366 /* The specified device is the controller. */ 1367 pqi_set_bus_target_lun(device, PQI_HBA_BUS, 0, lunid & 0x3fff); 1368 device->target_lun_valid = true; 1369 return; 1370 } 1371 1372 if (pqi_is_logical_device(device)) { 1373 if (device->is_external_raid_device) { 1374 bus = PQI_EXTERNAL_RAID_VOLUME_BUS; 1375 target = (lunid >> 16) & 0x3fff; 1376 lun = lunid & 0xff; 1377 } else { 1378 bus = PQI_RAID_VOLUME_BUS; 1379 target = 0; 1380 lun = lunid & 0x3fff; 1381 } 1382 pqi_set_bus_target_lun(device, bus, target, lun); 1383 device->target_lun_valid = true; 1384 return; 1385 } 1386 1387 /* 1388 * Defer target and LUN assignment for non-controller physical devices 1389 * because the SAS transport layer will make these assignments later. 1390 */ 1391 pqi_set_bus_target_lun(device, PQI_PHYSICAL_DEVICE_BUS, 0, 0); 1392} 1393 1394static void pqi_get_raid_level(struct pqi_ctrl_info *ctrl_info, 1395 struct pqi_scsi_dev *device) 1396{ 1397 int rc; 1398 u8 raid_level; 1399 u8 *buffer; 1400 1401 raid_level = SA_RAID_UNKNOWN; 1402 1403 buffer = kmalloc(64, GFP_KERNEL); 1404 if (buffer) { 1405 rc = pqi_scsi_inquiry(ctrl_info, device->scsi3addr, 1406 VPD_PAGE | CISS_VPD_LV_DEVICE_GEOMETRY, buffer, 64); 1407 if (rc == 0) { 1408 raid_level = buffer[8]; 1409 if (raid_level > SA_RAID_MAX) 1410 raid_level = SA_RAID_UNKNOWN; 1411 } 1412 kfree(buffer); 1413 } 1414 1415 device->raid_level = raid_level; 1416} 1417 1418static int pqi_validate_raid_map(struct pqi_ctrl_info *ctrl_info, 1419 struct pqi_scsi_dev *device, struct raid_map *raid_map) 1420{ 1421 char *err_msg; 1422 u32 raid_map_size; 1423 u32 r5or6_blocks_per_row; 1424 1425 raid_map_size = get_unaligned_le32(&raid_map->structure_size); 1426 1427 if (raid_map_size < offsetof(struct raid_map, disk_data)) { 1428 err_msg = "RAID map too small"; 1429 goto bad_raid_map; 1430 } 1431 1432 if (device->raid_level == SA_RAID_1) { 1433 if (get_unaligned_le16(&raid_map->layout_map_count) != 2) { 1434 err_msg = "invalid RAID-1 map"; 1435 goto bad_raid_map; 1436 } 1437 } else if (device->raid_level == SA_RAID_TRIPLE) { 1438 if (get_unaligned_le16(&raid_map->layout_map_count) != 3) { 1439 err_msg = "invalid RAID-1(Triple) map"; 1440 goto bad_raid_map; 1441 } 1442 } else if ((device->raid_level == SA_RAID_5 || 1443 device->raid_level == SA_RAID_6) && 1444 get_unaligned_le16(&raid_map->layout_map_count) > 1) { 1445 /* RAID 50/60 */ 1446 r5or6_blocks_per_row = 1447 get_unaligned_le16(&raid_map->strip_size) * 1448 get_unaligned_le16(&raid_map->data_disks_per_row); 1449 if (r5or6_blocks_per_row == 0) { 1450 err_msg = "invalid RAID-5 or RAID-6 map"; 1451 goto bad_raid_map; 1452 } 1453 } 1454 1455 return 0; 1456 1457bad_raid_map: 1458 dev_warn(&ctrl_info->pci_dev->dev, 1459 "logical device %08x%08x %s\n", 1460 *((u32 *)&device->scsi3addr), 1461 *((u32 *)&device->scsi3addr[4]), err_msg); 1462 1463 return -EINVAL; 1464} 1465 1466static int pqi_get_raid_map(struct pqi_ctrl_info *ctrl_info, 1467 struct pqi_scsi_dev *device) 1468{ 1469 int rc; 1470 u32 raid_map_size; 1471 struct raid_map *raid_map; 1472 1473 raid_map = kmalloc(sizeof(*raid_map), GFP_KERNEL); 1474 if (!raid_map) 1475 return -ENOMEM; 1476 1477 rc = pqi_send_scsi_raid_request(ctrl_info, CISS_GET_RAID_MAP, 1478 device->scsi3addr, raid_map, sizeof(*raid_map), 0, NULL); 1479 if (rc) 1480 goto error; 1481 1482 raid_map_size = get_unaligned_le32(&raid_map->structure_size); 1483 1484 if (raid_map_size > sizeof(*raid_map)) { 1485 1486 kfree(raid_map); 1487 1488 raid_map = kmalloc(raid_map_size, GFP_KERNEL); 1489 if (!raid_map) 1490 return -ENOMEM; 1491 1492 rc = pqi_send_scsi_raid_request(ctrl_info, CISS_GET_RAID_MAP, 1493 device->scsi3addr, raid_map, raid_map_size, 0, NULL); 1494 if (rc) 1495 goto error; 1496 1497 if (get_unaligned_le32(&raid_map->structure_size) 1498 != raid_map_size) { 1499 dev_warn(&ctrl_info->pci_dev->dev, 1500 "requested %u bytes, received %u bytes\n", 1501 raid_map_size, 1502 get_unaligned_le32(&raid_map->structure_size)); 1503 rc = -EINVAL; 1504 goto error; 1505 } 1506 } 1507 1508 rc = pqi_validate_raid_map(ctrl_info, device, raid_map); 1509 if (rc) 1510 goto error; 1511 1512 device->raid_map = raid_map; 1513 1514 return 0; 1515 1516error: 1517 kfree(raid_map); 1518 1519 return rc; 1520} 1521 1522static void pqi_set_max_transfer_encrypted(struct pqi_ctrl_info *ctrl_info, 1523 struct pqi_scsi_dev *device) 1524{ 1525 if (!ctrl_info->lv_drive_type_mix_valid) { 1526 device->max_transfer_encrypted = ~0; 1527 return; 1528 } 1529 1530 switch (LV_GET_DRIVE_TYPE_MIX(device->scsi3addr)) { 1531 case LV_DRIVE_TYPE_MIX_SAS_HDD_ONLY: 1532 case LV_DRIVE_TYPE_MIX_SATA_HDD_ONLY: 1533 case LV_DRIVE_TYPE_MIX_SAS_OR_SATA_SSD_ONLY: 1534 case LV_DRIVE_TYPE_MIX_SAS_SSD_ONLY: 1535 case LV_DRIVE_TYPE_MIX_SATA_SSD_ONLY: 1536 case LV_DRIVE_TYPE_MIX_SAS_ONLY: 1537 case LV_DRIVE_TYPE_MIX_SATA_ONLY: 1538 device->max_transfer_encrypted = 1539 ctrl_info->max_transfer_encrypted_sas_sata; 1540 break; 1541 case LV_DRIVE_TYPE_MIX_NVME_ONLY: 1542 device->max_transfer_encrypted = 1543 ctrl_info->max_transfer_encrypted_nvme; 1544 break; 1545 case LV_DRIVE_TYPE_MIX_UNKNOWN: 1546 case LV_DRIVE_TYPE_MIX_NO_RESTRICTION: 1547 default: 1548 device->max_transfer_encrypted = 1549 min(ctrl_info->max_transfer_encrypted_sas_sata, 1550 ctrl_info->max_transfer_encrypted_nvme); 1551 break; 1552 } 1553} 1554 1555static void pqi_get_raid_bypass_status(struct pqi_ctrl_info *ctrl_info, 1556 struct pqi_scsi_dev *device) 1557{ 1558 int rc; 1559 u8 *buffer; 1560 u8 bypass_status; 1561 1562 buffer = kmalloc(64, GFP_KERNEL); 1563 if (!buffer) 1564 return; 1565 1566 rc = pqi_scsi_inquiry(ctrl_info, device->scsi3addr, 1567 VPD_PAGE | CISS_VPD_LV_BYPASS_STATUS, buffer, 64); 1568 if (rc) 1569 goto out; 1570 1571#define RAID_BYPASS_STATUS 4 1572#define RAID_BYPASS_CONFIGURED 0x1 1573#define RAID_BYPASS_ENABLED 0x2 1574 1575 bypass_status = buffer[RAID_BYPASS_STATUS]; 1576 device->raid_bypass_configured = 1577 (bypass_status & RAID_BYPASS_CONFIGURED) != 0; 1578 if (device->raid_bypass_configured && 1579 (bypass_status & RAID_BYPASS_ENABLED) && 1580 pqi_get_raid_map(ctrl_info, device) == 0) { 1581 device->raid_bypass_enabled = true; 1582 if (get_unaligned_le16(&device->raid_map->flags) & 1583 RAID_MAP_ENCRYPTION_ENABLED) 1584 pqi_set_max_transfer_encrypted(ctrl_info, device); 1585 } 1586 1587out: 1588 kfree(buffer); 1589} 1590 1591/* 1592 * Use vendor-specific VPD to determine online/offline status of a volume. 1593 */ 1594 1595static void pqi_get_volume_status(struct pqi_ctrl_info *ctrl_info, 1596 struct pqi_scsi_dev *device) 1597{ 1598 int rc; 1599 size_t page_length; 1600 u8 volume_status = CISS_LV_STATUS_UNAVAILABLE; 1601 bool volume_offline = true; 1602 u32 volume_flags; 1603 struct ciss_vpd_logical_volume_status *vpd; 1604 1605 vpd = kmalloc(sizeof(*vpd), GFP_KERNEL); 1606 if (!vpd) 1607 goto no_buffer; 1608 1609 rc = pqi_scsi_inquiry(ctrl_info, device->scsi3addr, 1610 VPD_PAGE | CISS_VPD_LV_STATUS, vpd, sizeof(*vpd)); 1611 if (rc) 1612 goto out; 1613 1614 if (vpd->page_code != CISS_VPD_LV_STATUS) 1615 goto out; 1616 1617 page_length = offsetof(struct ciss_vpd_logical_volume_status, 1618 volume_status) + vpd->page_length; 1619 if (page_length < sizeof(*vpd)) 1620 goto out; 1621 1622 volume_status = vpd->volume_status; 1623 volume_flags = get_unaligned_be32(&vpd->flags); 1624 volume_offline = (volume_flags & CISS_LV_FLAGS_NO_HOST_IO) != 0; 1625 1626out: 1627 kfree(vpd); 1628no_buffer: 1629 device->volume_status = volume_status; 1630 device->volume_offline = volume_offline; 1631} 1632 1633#define PQI_DEVICE_NCQ_PRIO_SUPPORTED 0x01 1634#define PQI_DEVICE_PHY_MAP_SUPPORTED 0x10 1635#define PQI_DEVICE_ERASE_IN_PROGRESS 0x10 1636 1637static int pqi_get_physical_device_info(struct pqi_ctrl_info *ctrl_info, 1638 struct pqi_scsi_dev *device, 1639 struct bmic_identify_physical_device *id_phys) 1640{ 1641 int rc; 1642 1643 memset(id_phys, 0, sizeof(*id_phys)); 1644 1645 rc = pqi_identify_physical_device(ctrl_info, device, 1646 id_phys, sizeof(*id_phys)); 1647 if (rc) { 1648 device->queue_depth = PQI_PHYSICAL_DISK_DEFAULT_MAX_QUEUE_DEPTH; 1649 return rc; 1650 } 1651 1652 scsi_sanitize_inquiry_string(&id_phys->model[0], 8); 1653 scsi_sanitize_inquiry_string(&id_phys->model[8], 16); 1654 1655 memcpy(device->vendor, &id_phys->model[0], sizeof(device->vendor)); 1656 memcpy(device->model, &id_phys->model[8], sizeof(device->model)); 1657 1658 device->box_index = id_phys->box_index; 1659 device->phys_box_on_bus = id_phys->phys_box_on_bus; 1660 device->phy_connected_dev_type = id_phys->phy_connected_dev_type[0]; 1661 device->queue_depth = 1662 get_unaligned_le16(&id_phys->current_queue_depth_limit); 1663 device->active_path_index = id_phys->active_path_number; 1664 device->path_map = id_phys->redundant_path_present_map; 1665 memcpy(&device->box, 1666 &id_phys->alternate_paths_phys_box_on_port, 1667 sizeof(device->box)); 1668 memcpy(&device->phys_connector, 1669 &id_phys->alternate_paths_phys_connector, 1670 sizeof(device->phys_connector)); 1671 device->bay = id_phys->phys_bay_in_box; 1672 device->lun_count = id_phys->multi_lun_device_lun_count; 1673 if ((id_phys->even_more_flags & PQI_DEVICE_PHY_MAP_SUPPORTED) && 1674 id_phys->phy_count) 1675 device->phy_id = 1676 id_phys->phy_to_phy_map[device->active_path_index]; 1677 else 1678 device->phy_id = 0xFF; 1679 1680 device->ncq_prio_support = 1681 ((get_unaligned_le32(&id_phys->misc_drive_flags) >> 16) & 1682 PQI_DEVICE_NCQ_PRIO_SUPPORTED); 1683 1684 device->erase_in_progress = !!(get_unaligned_le16(&id_phys->extra_physical_drive_flags) & PQI_DEVICE_ERASE_IN_PROGRESS); 1685 1686 return 0; 1687} 1688 1689static int pqi_get_logical_device_info(struct pqi_ctrl_info *ctrl_info, 1690 struct pqi_scsi_dev *device) 1691{ 1692 int rc; 1693 u8 *buffer; 1694 1695 buffer = kmalloc(64, GFP_KERNEL); 1696 if (!buffer) 1697 return -ENOMEM; 1698 1699 /* Send an inquiry to the device to see what it is. */ 1700 rc = pqi_scsi_inquiry(ctrl_info, device->scsi3addr, 0, buffer, 64); 1701 if (rc) 1702 goto out; 1703 1704 scsi_sanitize_inquiry_string(&buffer[8], 8); 1705 scsi_sanitize_inquiry_string(&buffer[16], 16); 1706 1707 device->devtype = buffer[0] & 0x1f; 1708 memcpy(device->vendor, &buffer[8], sizeof(device->vendor)); 1709 memcpy(device->model, &buffer[16], sizeof(device->model)); 1710 1711 if (device->devtype == TYPE_DISK) { 1712 if (device->is_external_raid_device) { 1713 device->raid_level = SA_RAID_UNKNOWN; 1714 device->volume_status = CISS_LV_OK; 1715 device->volume_offline = false; 1716 } else { 1717 pqi_get_raid_level(ctrl_info, device); 1718 pqi_get_raid_bypass_status(ctrl_info, device); 1719 pqi_get_volume_status(ctrl_info, device); 1720 } 1721 } 1722 1723out: 1724 kfree(buffer); 1725 1726 return rc; 1727} 1728 1729/* 1730 * Prevent adding drive to OS for some corner cases such as a drive 1731 * undergoing a sanitize (erase) operation. Some OSes will continue to poll 1732 * the drive until the sanitize completes, which can take hours, 1733 * resulting in long bootup delays. Commands such as TUR, READ_CAP 1734 * are allowed, but READ/WRITE cause check condition. So the OS 1735 * cannot check/read the partition table. 1736 * Note: devices that have completed sanitize must be re-enabled 1737 * using the management utility. 1738 */ 1739static inline bool pqi_keep_device_offline(struct pqi_scsi_dev *device) 1740{ 1741 return device->erase_in_progress; 1742} 1743 1744static int pqi_get_device_info_phys_logical(struct pqi_ctrl_info *ctrl_info, 1745 struct pqi_scsi_dev *device, 1746 struct bmic_identify_physical_device *id_phys) 1747{ 1748 int rc; 1749 1750 if (device->is_expander_smp_device) 1751 return 0; 1752 1753 if (pqi_is_logical_device(device)) 1754 rc = pqi_get_logical_device_info(ctrl_info, device); 1755 else 1756 rc = pqi_get_physical_device_info(ctrl_info, device, id_phys); 1757 1758 return rc; 1759} 1760 1761static int pqi_get_device_info(struct pqi_ctrl_info *ctrl_info, 1762 struct pqi_scsi_dev *device, 1763 struct bmic_identify_physical_device *id_phys) 1764{ 1765 int rc; 1766 1767 rc = pqi_get_device_info_phys_logical(ctrl_info, device, id_phys); 1768 1769 if (rc == 0 && device->lun_count == 0) 1770 device->lun_count = 1; 1771 1772 return rc; 1773} 1774 1775static void pqi_show_volume_status(struct pqi_ctrl_info *ctrl_info, 1776 struct pqi_scsi_dev *device) 1777{ 1778 char *status; 1779 static const char unknown_state_str[] = 1780 "Volume is in an unknown state (%u)"; 1781 char unknown_state_buffer[sizeof(unknown_state_str) + 10]; 1782 1783 switch (device->volume_status) { 1784 case CISS_LV_OK: 1785 status = "Volume online"; 1786 break; 1787 case CISS_LV_FAILED: 1788 status = "Volume failed"; 1789 break; 1790 case CISS_LV_NOT_CONFIGURED: 1791 status = "Volume not configured"; 1792 break; 1793 case CISS_LV_DEGRADED: 1794 status = "Volume degraded"; 1795 break; 1796 case CISS_LV_READY_FOR_RECOVERY: 1797 status = "Volume ready for recovery operation"; 1798 break; 1799 case CISS_LV_UNDERGOING_RECOVERY: 1800 status = "Volume undergoing recovery"; 1801 break; 1802 case CISS_LV_WRONG_PHYSICAL_DRIVE_REPLACED: 1803 status = "Wrong physical drive was replaced"; 1804 break; 1805 case CISS_LV_PHYSICAL_DRIVE_CONNECTION_PROBLEM: 1806 status = "A physical drive not properly connected"; 1807 break; 1808 case CISS_LV_HARDWARE_OVERHEATING: 1809 status = "Hardware is overheating"; 1810 break; 1811 case CISS_LV_HARDWARE_HAS_OVERHEATED: 1812 status = "Hardware has overheated"; 1813 break; 1814 case CISS_LV_UNDERGOING_EXPANSION: 1815 status = "Volume undergoing expansion"; 1816 break; 1817 case CISS_LV_NOT_AVAILABLE: 1818 status = "Volume waiting for transforming volume"; 1819 break; 1820 case CISS_LV_QUEUED_FOR_EXPANSION: 1821 status = "Volume queued for expansion"; 1822 break; 1823 case CISS_LV_DISABLED_SCSI_ID_CONFLICT: 1824 status = "Volume disabled due to SCSI ID conflict"; 1825 break; 1826 case CISS_LV_EJECTED: 1827 status = "Volume has been ejected"; 1828 break; 1829 case CISS_LV_UNDERGOING_ERASE: 1830 status = "Volume undergoing background erase"; 1831 break; 1832 case CISS_LV_READY_FOR_PREDICTIVE_SPARE_REBUILD: 1833 status = "Volume ready for predictive spare rebuild"; 1834 break; 1835 case CISS_LV_UNDERGOING_RPI: 1836 status = "Volume undergoing rapid parity initialization"; 1837 break; 1838 case CISS_LV_PENDING_RPI: 1839 status = "Volume queued for rapid parity initialization"; 1840 break; 1841 case CISS_LV_ENCRYPTED_NO_KEY: 1842 status = "Encrypted volume inaccessible - key not present"; 1843 break; 1844 case CISS_LV_UNDERGOING_ENCRYPTION: 1845 status = "Volume undergoing encryption process"; 1846 break; 1847 case CISS_LV_UNDERGOING_ENCRYPTION_REKEYING: 1848 status = "Volume undergoing encryption re-keying process"; 1849 break; 1850 case CISS_LV_ENCRYPTED_IN_NON_ENCRYPTED_CONTROLLER: 1851 status = "Volume encrypted but encryption is disabled"; 1852 break; 1853 case CISS_LV_PENDING_ENCRYPTION: 1854 status = "Volume pending migration to encrypted state"; 1855 break; 1856 case CISS_LV_PENDING_ENCRYPTION_REKEYING: 1857 status = "Volume pending encryption rekeying"; 1858 break; 1859 case CISS_LV_NOT_SUPPORTED: 1860 status = "Volume not supported on this controller"; 1861 break; 1862 case CISS_LV_STATUS_UNAVAILABLE: 1863 status = "Volume status not available"; 1864 break; 1865 default: 1866 snprintf(unknown_state_buffer, sizeof(unknown_state_buffer), 1867 unknown_state_str, device->volume_status); 1868 status = unknown_state_buffer; 1869 break; 1870 } 1871 1872 dev_info(&ctrl_info->pci_dev->dev, 1873 "scsi %d:%d:%d:%d %s\n", 1874 ctrl_info->scsi_host->host_no, 1875 device->bus, device->target, device->lun, status); 1876} 1877 1878static void pqi_rescan_worker(struct work_struct *work) 1879{ 1880 struct pqi_ctrl_info *ctrl_info; 1881 1882 ctrl_info = container_of(to_delayed_work(work), struct pqi_ctrl_info, 1883 rescan_work); 1884 1885 pqi_scan_scsi_devices(ctrl_info); 1886} 1887 1888static int pqi_add_device(struct pqi_ctrl_info *ctrl_info, 1889 struct pqi_scsi_dev *device) 1890{ 1891 int rc; 1892 1893 if (pqi_is_logical_device(device)) 1894 rc = scsi_add_device(ctrl_info->scsi_host, device->bus, 1895 device->target, device->lun); 1896 else 1897 rc = pqi_add_sas_device(ctrl_info->sas_host, device); 1898 1899 return rc; 1900} 1901 1902#define PQI_REMOVE_DEVICE_PENDING_IO_TIMEOUT_MSECS (20 * 1000) 1903 1904static inline void pqi_remove_device(struct pqi_ctrl_info *ctrl_info, struct pqi_scsi_dev *device) 1905{ 1906 int rc; 1907 int lun; 1908 1909 for (lun = 0; lun < device->lun_count; lun++) { 1910 rc = pqi_device_wait_for_pending_io(ctrl_info, device, lun, 1911 PQI_REMOVE_DEVICE_PENDING_IO_TIMEOUT_MSECS); 1912 if (rc) 1913 dev_err(&ctrl_info->pci_dev->dev, 1914 "scsi %d:%d:%d:%d removing device with %d outstanding command(s)\n", 1915 ctrl_info->scsi_host->host_no, device->bus, 1916 device->target, lun, 1917 atomic_read(&device->scsi_cmds_outstanding[lun])); 1918 } 1919 1920 if (pqi_is_logical_device(device)) 1921 scsi_remove_device(device->sdev); 1922 else 1923 pqi_remove_sas_device(device); 1924 1925 pqi_device_remove_start(device); 1926} 1927 1928/* Assumes the SCSI device list lock is held. */ 1929 1930static struct pqi_scsi_dev *pqi_find_scsi_dev(struct pqi_ctrl_info *ctrl_info, 1931 int bus, int target, int lun) 1932{ 1933 struct pqi_scsi_dev *device; 1934 1935 list_for_each_entry(device, &ctrl_info->scsi_device_list, scsi_device_list_entry) 1936 if (device->bus == bus && device->target == target && device->lun == lun) 1937 return device; 1938 1939 return NULL; 1940} 1941 1942static inline bool pqi_device_equal(struct pqi_scsi_dev *dev1, struct pqi_scsi_dev *dev2) 1943{ 1944 if (dev1->is_physical_device != dev2->is_physical_device) 1945 return false; 1946 1947 if (dev1->is_physical_device) 1948 return memcmp(dev1->wwid, dev2->wwid, sizeof(dev1->wwid)) == 0; 1949 1950 return memcmp(dev1->volume_id, dev2->volume_id, sizeof(dev1->volume_id)) == 0; 1951} 1952 1953enum pqi_find_result { 1954 DEVICE_NOT_FOUND, 1955 DEVICE_CHANGED, 1956 DEVICE_SAME, 1957}; 1958 1959static enum pqi_find_result pqi_scsi_find_entry(struct pqi_ctrl_info *ctrl_info, 1960 struct pqi_scsi_dev *device_to_find, struct pqi_scsi_dev **matching_device) 1961{ 1962 struct pqi_scsi_dev *device; 1963 1964 list_for_each_entry(device, &ctrl_info->scsi_device_list, scsi_device_list_entry) { 1965 if (pqi_scsi3addr_equal(device_to_find->scsi3addr, device->scsi3addr)) { 1966 *matching_device = device; 1967 if (pqi_device_equal(device_to_find, device)) { 1968 if (device_to_find->volume_offline) 1969 return DEVICE_CHANGED; 1970 return DEVICE_SAME; 1971 } 1972 return DEVICE_CHANGED; 1973 } 1974 } 1975 1976 return DEVICE_NOT_FOUND; 1977} 1978 1979static inline const char *pqi_device_type(struct pqi_scsi_dev *device) 1980{ 1981 if (device->is_expander_smp_device) 1982 return "Enclosure SMP "; 1983 1984 return scsi_device_type(device->devtype); 1985} 1986 1987#define PQI_DEV_INFO_BUFFER_LENGTH 128 1988 1989static void pqi_dev_info(struct pqi_ctrl_info *ctrl_info, 1990 char *action, struct pqi_scsi_dev *device) 1991{ 1992 ssize_t count; 1993 char buffer[PQI_DEV_INFO_BUFFER_LENGTH]; 1994 1995 count = scnprintf(buffer, PQI_DEV_INFO_BUFFER_LENGTH, 1996 "%d:%d:", ctrl_info->scsi_host->host_no, device->bus); 1997 1998 if (device->target_lun_valid) 1999 count += scnprintf(buffer + count, 2000 PQI_DEV_INFO_BUFFER_LENGTH - count, 2001 "%d:%d", 2002 device->target, 2003 device->lun); 2004 else 2005 count += scnprintf(buffer + count, 2006 PQI_DEV_INFO_BUFFER_LENGTH - count, 2007 "-:-"); 2008 2009 if (pqi_is_logical_device(device)) 2010 count += scnprintf(buffer + count, 2011 PQI_DEV_INFO_BUFFER_LENGTH - count, 2012 " %08x%08x", 2013 *((u32 *)&device->scsi3addr), 2014 *((u32 *)&device->scsi3addr[4])); 2015 else 2016 count += scnprintf(buffer + count, 2017 PQI_DEV_INFO_BUFFER_LENGTH - count, 2018 " %016llx%016llx", 2019 get_unaligned_be64(&device->wwid[0]), 2020 get_unaligned_be64(&device->wwid[8])); 2021 2022 count += scnprintf(buffer + count, PQI_DEV_INFO_BUFFER_LENGTH - count, 2023 " %s %.8s %.16s ", 2024 pqi_device_type(device), 2025 device->vendor, 2026 device->model); 2027 2028 if (pqi_is_logical_device(device)) { 2029 if (device->devtype == TYPE_DISK) 2030 count += scnprintf(buffer + count, 2031 PQI_DEV_INFO_BUFFER_LENGTH - count, 2032 "SSDSmartPathCap%c En%c %-12s", 2033 device->raid_bypass_configured ? '+' : '-', 2034 device->raid_bypass_enabled ? '+' : '-', 2035 pqi_raid_level_to_string(device->raid_level)); 2036 } else { 2037 count += scnprintf(buffer + count, 2038 PQI_DEV_INFO_BUFFER_LENGTH - count, 2039 "AIO%c", device->aio_enabled ? '+' : '-'); 2040 if (device->devtype == TYPE_DISK || 2041 device->devtype == TYPE_ZBC) 2042 count += scnprintf(buffer + count, 2043 PQI_DEV_INFO_BUFFER_LENGTH - count, 2044 " qd=%-6d", device->queue_depth); 2045 } 2046 2047 dev_info(&ctrl_info->pci_dev->dev, "%s %s\n", action, buffer); 2048} 2049 2050static bool pqi_raid_maps_equal(struct raid_map *raid_map1, struct raid_map *raid_map2) 2051{ 2052 u32 raid_map1_size; 2053 u32 raid_map2_size; 2054 2055 if (raid_map1 == NULL || raid_map2 == NULL) 2056 return raid_map1 == raid_map2; 2057 2058 raid_map1_size = get_unaligned_le32(&raid_map1->structure_size); 2059 raid_map2_size = get_unaligned_le32(&raid_map2->structure_size); 2060 2061 if (raid_map1_size != raid_map2_size) 2062 return false; 2063 2064 return memcmp(raid_map1, raid_map2, raid_map1_size) == 0; 2065} 2066 2067/* Assumes the SCSI device list lock is held. */ 2068 2069static void pqi_scsi_update_device(struct pqi_ctrl_info *ctrl_info, 2070 struct pqi_scsi_dev *existing_device, struct pqi_scsi_dev *new_device) 2071{ 2072 existing_device->device_type = new_device->device_type; 2073 existing_device->bus = new_device->bus; 2074 if (new_device->target_lun_valid) { 2075 existing_device->target = new_device->target; 2076 existing_device->lun = new_device->lun; 2077 existing_device->target_lun_valid = true; 2078 } 2079 2080 /* By definition, the scsi3addr and wwid fields are already the same. */ 2081 2082 existing_device->is_physical_device = new_device->is_physical_device; 2083 memcpy(existing_device->vendor, new_device->vendor, sizeof(existing_device->vendor)); 2084 memcpy(existing_device->model, new_device->model, sizeof(existing_device->model)); 2085 existing_device->sas_address = new_device->sas_address; 2086 existing_device->queue_depth = new_device->queue_depth; 2087 existing_device->device_offline = false; 2088 existing_device->lun_count = new_device->lun_count; 2089 2090 if (pqi_is_logical_device(existing_device)) { 2091 existing_device->is_external_raid_device = new_device->is_external_raid_device; 2092 2093 if (existing_device->devtype == TYPE_DISK) { 2094 existing_device->raid_level = new_device->raid_level; 2095 existing_device->volume_status = new_device->volume_status; 2096 memset(existing_device->next_bypass_group, 0, sizeof(existing_device->next_bypass_group)); 2097 if (!pqi_raid_maps_equal(existing_device->raid_map, new_device->raid_map)) { 2098 kfree(existing_device->raid_map); 2099 existing_device->raid_map = new_device->raid_map; 2100 /* To prevent this from being freed later. */ 2101 new_device->raid_map = NULL; 2102 } 2103 existing_device->raid_bypass_configured = new_device->raid_bypass_configured; 2104 existing_device->raid_bypass_enabled = new_device->raid_bypass_enabled; 2105 } 2106 } else { 2107 existing_device->aio_enabled = new_device->aio_enabled; 2108 existing_device->aio_handle = new_device->aio_handle; 2109 existing_device->is_expander_smp_device = new_device->is_expander_smp_device; 2110 existing_device->active_path_index = new_device->active_path_index; 2111 existing_device->phy_id = new_device->phy_id; 2112 existing_device->path_map = new_device->path_map; 2113 existing_device->bay = new_device->bay; 2114 existing_device->box_index = new_device->box_index; 2115 existing_device->phys_box_on_bus = new_device->phys_box_on_bus; 2116 existing_device->phy_connected_dev_type = new_device->phy_connected_dev_type; 2117 memcpy(existing_device->box, new_device->box, sizeof(existing_device->box)); 2118 memcpy(existing_device->phys_connector, new_device->phys_connector, sizeof(existing_device->phys_connector)); 2119 } 2120} 2121 2122static inline void pqi_free_device(struct pqi_scsi_dev *device) 2123{ 2124 if (device) { 2125 kfree(device->raid_map); 2126 kfree(device); 2127 } 2128} 2129 2130/* 2131 * Called when exposing a new device to the OS fails in order to re-adjust 2132 * our internal SCSI device list to match the SCSI ML's view. 2133 */ 2134 2135static inline void pqi_fixup_botched_add(struct pqi_ctrl_info *ctrl_info, 2136 struct pqi_scsi_dev *device) 2137{ 2138 unsigned long flags; 2139 2140 spin_lock_irqsave(&ctrl_info->scsi_device_list_lock, flags); 2141 list_del(&device->scsi_device_list_entry); 2142 spin_unlock_irqrestore(&ctrl_info->scsi_device_list_lock, flags); 2143 2144 /* Allow the device structure to be freed later. */ 2145 device->keep_device = false; 2146} 2147 2148static inline bool pqi_is_device_added(struct pqi_scsi_dev *device) 2149{ 2150 if (device->is_expander_smp_device) 2151 return device->sas_port != NULL; 2152 2153 return device->sdev != NULL; 2154} 2155 2156static inline void pqi_init_device_tmf_work(struct pqi_scsi_dev *device) 2157{ 2158 unsigned int lun; 2159 struct pqi_tmf_work *tmf_work; 2160 2161 for (lun = 0, tmf_work = device->tmf_work; lun < PQI_MAX_LUNS_PER_DEVICE; lun++, tmf_work++) 2162 INIT_WORK(&tmf_work->work_struct, pqi_tmf_worker); 2163} 2164 2165static inline bool pqi_volume_rescan_needed(struct pqi_scsi_dev *device) 2166{ 2167 if (pqi_device_in_remove(device)) 2168 return false; 2169 2170 if (device->sdev == NULL) 2171 return false; 2172 2173 if (!scsi_device_online(device->sdev)) 2174 return false; 2175 2176 return device->rescan; 2177} 2178 2179static void pqi_update_device_list(struct pqi_ctrl_info *ctrl_info, 2180 struct pqi_scsi_dev *new_device_list[], unsigned int num_new_devices) 2181{ 2182 int rc; 2183 unsigned int i; 2184 unsigned long flags; 2185 enum pqi_find_result find_result; 2186 struct pqi_scsi_dev *device; 2187 struct pqi_scsi_dev *next; 2188 struct pqi_scsi_dev *matching_device; 2189 LIST_HEAD(add_list); 2190 LIST_HEAD(delete_list); 2191 2192 /* 2193 * The idea here is to do as little work as possible while holding the 2194 * spinlock. That's why we go to great pains to defer anything other 2195 * than updating the internal device list until after we release the 2196 * spinlock. 2197 */ 2198 2199 spin_lock_irqsave(&ctrl_info->scsi_device_list_lock, flags); 2200 2201 /* Assume that all devices in the existing list have gone away. */ 2202 list_for_each_entry(device, &ctrl_info->scsi_device_list, scsi_device_list_entry) 2203 device->device_gone = true; 2204 2205 for (i = 0; i < num_new_devices; i++) { 2206 device = new_device_list[i]; 2207 2208 find_result = pqi_scsi_find_entry(ctrl_info, device, 2209 &matching_device); 2210 2211 switch (find_result) { 2212 case DEVICE_SAME: 2213 /* 2214 * The newly found device is already in the existing 2215 * device list. 2216 */ 2217 device->new_device = false; 2218 matching_device->device_gone = false; 2219 pqi_scsi_update_device(ctrl_info, matching_device, device); 2220 break; 2221 case DEVICE_NOT_FOUND: 2222 /* 2223 * The newly found device is NOT in the existing device 2224 * list. 2225 */ 2226 device->new_device = true; 2227 break; 2228 case DEVICE_CHANGED: 2229 /* 2230 * The original device has gone away and we need to add 2231 * the new device. 2232 */ 2233 device->new_device = true; 2234 break; 2235 } 2236 } 2237 2238 /* Process all devices that have gone away. */ 2239 list_for_each_entry_safe(device, next, &ctrl_info->scsi_device_list, 2240 scsi_device_list_entry) { 2241 if (device->device_gone) { 2242 list_del(&device->scsi_device_list_entry); 2243 list_add_tail(&device->delete_list_entry, &delete_list); 2244 } 2245 } 2246 2247 /* Process all new devices. */ 2248 for (i = 0; i < num_new_devices; i++) { 2249 device = new_device_list[i]; 2250 if (!device->new_device) 2251 continue; 2252 if (device->volume_offline) 2253 continue; 2254 list_add_tail(&device->scsi_device_list_entry, 2255 &ctrl_info->scsi_device_list); 2256 list_add_tail(&device->add_list_entry, &add_list); 2257 /* To prevent this device structure from being freed later. */ 2258 device->keep_device = true; 2259 pqi_init_device_tmf_work(device); 2260 } 2261 2262 spin_unlock_irqrestore(&ctrl_info->scsi_device_list_lock, flags); 2263 2264 /* 2265 * If OFA is in progress and there are devices that need to be deleted, 2266 * allow any pending reset operations to continue and unblock any SCSI 2267 * requests before removal. 2268 */ 2269 if (pqi_ofa_in_progress(ctrl_info)) { 2270 list_for_each_entry_safe(device, next, &delete_list, delete_list_entry) 2271 if (pqi_is_device_added(device)) 2272 pqi_device_remove_start(device); 2273 pqi_ctrl_unblock_device_reset(ctrl_info); 2274 pqi_scsi_unblock_requests(ctrl_info); 2275 } 2276 2277 /* Remove all devices that have gone away. */ 2278 list_for_each_entry_safe(device, next, &delete_list, delete_list_entry) { 2279 if (device->volume_offline) { 2280 pqi_dev_info(ctrl_info, "offline", device); 2281 pqi_show_volume_status(ctrl_info, device); 2282 } else { 2283 pqi_dev_info(ctrl_info, "removed", device); 2284 } 2285 if (pqi_is_device_added(device)) 2286 pqi_remove_device(ctrl_info, device); 2287 list_del(&device->delete_list_entry); 2288 pqi_free_device(device); 2289 } 2290 2291 /* 2292 * Notify the SML of any existing device changes such as; 2293 * queue depth, device size. 2294 */ 2295 list_for_each_entry(device, &ctrl_info->scsi_device_list, scsi_device_list_entry) { 2296 if (device->sdev && device->queue_depth != device->advertised_queue_depth) { 2297 device->advertised_queue_depth = device->queue_depth; 2298 scsi_change_queue_depth(device->sdev, device->advertised_queue_depth); 2299 spin_lock_irqsave(&ctrl_info->scsi_device_list_lock, flags); 2300 if (pqi_volume_rescan_needed(device)) { 2301 device->rescan = false; 2302 spin_unlock_irqrestore(&ctrl_info->scsi_device_list_lock, flags); 2303 scsi_rescan_device(device->sdev); 2304 } else { 2305 spin_unlock_irqrestore(&ctrl_info->scsi_device_list_lock, flags); 2306 } 2307 } 2308 } 2309 2310 /* Expose any new devices. */ 2311 list_for_each_entry_safe(device, next, &add_list, add_list_entry) { 2312 if (!pqi_is_device_added(device)) { 2313 rc = pqi_add_device(ctrl_info, device); 2314 if (rc == 0) { 2315 pqi_dev_info(ctrl_info, "added", device); 2316 } else { 2317 dev_warn(&ctrl_info->pci_dev->dev, 2318 "scsi %d:%d:%d:%d addition failed, device not added\n", 2319 ctrl_info->scsi_host->host_no, 2320 device->bus, device->target, 2321 device->lun); 2322 pqi_fixup_botched_add(ctrl_info, device); 2323 } 2324 } 2325 } 2326 2327} 2328 2329static inline bool pqi_is_supported_device(struct pqi_scsi_dev *device) 2330{ 2331 /* 2332 * Only support the HBA controller itself as a RAID 2333 * controller. If it's a RAID controller other than 2334 * the HBA itself (an external RAID controller, for 2335 * example), we don't support it. 2336 */ 2337 if (device->device_type == SA_DEVICE_TYPE_CONTROLLER && 2338 !pqi_is_hba_lunid(device->scsi3addr)) 2339 return false; 2340 2341 return true; 2342} 2343 2344static inline bool pqi_skip_device(u8 *scsi3addr) 2345{ 2346 /* Ignore all masked devices. */ 2347 if (MASKED_DEVICE(scsi3addr)) 2348 return true; 2349 2350 return false; 2351} 2352 2353static inline void pqi_mask_device(u8 *scsi3addr) 2354{ 2355 scsi3addr[3] |= 0xc0; 2356} 2357 2358static inline bool pqi_is_multipath_device(struct pqi_scsi_dev *device) 2359{ 2360 if (pqi_is_logical_device(device)) 2361 return false; 2362 2363 return (device->path_map & (device->path_map - 1)) != 0; 2364} 2365 2366static inline bool pqi_expose_device(struct pqi_scsi_dev *device) 2367{ 2368 return !device->is_physical_device || !pqi_skip_device(device->scsi3addr); 2369} 2370 2371static int pqi_update_scsi_devices(struct pqi_ctrl_info *ctrl_info) 2372{ 2373 int i; 2374 int rc; 2375 LIST_HEAD(new_device_list_head); 2376 struct report_phys_lun_16byte_wwid_list *physdev_list = NULL; 2377 struct report_log_lun_list *logdev_list = NULL; 2378 struct report_phys_lun_16byte_wwid *phys_lun; 2379 struct report_log_lun *log_lun; 2380 struct bmic_identify_physical_device *id_phys = NULL; 2381 u32 num_physicals; 2382 u32 num_logicals; 2383 struct pqi_scsi_dev **new_device_list = NULL; 2384 struct pqi_scsi_dev *device; 2385 struct pqi_scsi_dev *next; 2386 unsigned int num_new_devices; 2387 unsigned int num_valid_devices; 2388 bool is_physical_device; 2389 u8 *scsi3addr; 2390 unsigned int physical_index; 2391 unsigned int logical_index; 2392 static char *out_of_memory_msg = 2393 "failed to allocate memory, device discovery stopped"; 2394 2395 rc = pqi_get_device_lists(ctrl_info, &physdev_list, &logdev_list); 2396 if (rc) 2397 goto out; 2398 2399 if (physdev_list) 2400 num_physicals = 2401 get_unaligned_be32(&physdev_list->header.list_length) 2402 / sizeof(physdev_list->lun_entries[0]); 2403 else 2404 num_physicals = 0; 2405 2406 if (logdev_list) 2407 num_logicals = 2408 get_unaligned_be32(&logdev_list->header.list_length) 2409 / sizeof(logdev_list->lun_entries[0]); 2410 else 2411 num_logicals = 0; 2412 2413 if (num_physicals) { 2414 /* 2415 * We need this buffer for calls to pqi_get_physical_disk_info() 2416 * below. We allocate it here instead of inside 2417 * pqi_get_physical_disk_info() because it's a fairly large 2418 * buffer. 2419 */ 2420 id_phys = kmalloc(sizeof(*id_phys), GFP_KERNEL); 2421 if (!id_phys) { 2422 dev_warn(&ctrl_info->pci_dev->dev, "%s\n", 2423 out_of_memory_msg); 2424 rc = -ENOMEM; 2425 goto out; 2426 } 2427 2428 if (pqi_hide_vsep) { 2429 for (i = num_physicals - 1; i >= 0; i--) { 2430 phys_lun = &physdev_list->lun_entries[i]; 2431 if (CISS_GET_DRIVE_NUMBER(phys_lun->lunid) == PQI_VSEP_CISS_BTL) { 2432 pqi_mask_device(phys_lun->lunid); 2433 break; 2434 } 2435 } 2436 } 2437 } 2438 2439 if (num_logicals && 2440 (logdev_list->header.flags & CISS_REPORT_LOG_FLAG_DRIVE_TYPE_MIX)) 2441 ctrl_info->lv_drive_type_mix_valid = true; 2442 2443 num_new_devices = num_physicals + num_logicals; 2444 2445 new_device_list = kmalloc_array(num_new_devices, 2446 sizeof(*new_device_list), 2447 GFP_KERNEL); 2448 if (!new_device_list) { 2449 dev_warn(&ctrl_info->pci_dev->dev, "%s\n", out_of_memory_msg); 2450 rc = -ENOMEM; 2451 goto out; 2452 } 2453 2454 for (i = 0; i < num_new_devices; i++) { 2455 device = kzalloc(sizeof(*device), GFP_KERNEL); 2456 if (!device) { 2457 dev_warn(&ctrl_info->pci_dev->dev, "%s\n", 2458 out_of_memory_msg); 2459 rc = -ENOMEM; 2460 goto out; 2461 } 2462 list_add_tail(&device->new_device_list_entry, 2463 &new_device_list_head); 2464 } 2465 2466 device = NULL; 2467 num_valid_devices = 0; 2468 physical_index = 0; 2469 logical_index = 0; 2470 2471 for (i = 0; i < num_new_devices; i++) { 2472 2473 if ((!pqi_expose_ld_first && i < num_physicals) || 2474 (pqi_expose_ld_first && i >= num_logicals)) { 2475 is_physical_device = true; 2476 phys_lun = &physdev_list->lun_entries[physical_index++]; 2477 log_lun = NULL; 2478 scsi3addr = phys_lun->lunid; 2479 } else { 2480 is_physical_device = false; 2481 phys_lun = NULL; 2482 log_lun = &logdev_list->lun_entries[logical_index++]; 2483 scsi3addr = log_lun->lunid; 2484 } 2485 2486 if (is_physical_device && pqi_skip_device(scsi3addr)) 2487 continue; 2488 2489 if (device) 2490 device = list_next_entry(device, new_device_list_entry); 2491 else 2492 device = list_first_entry(&new_device_list_head, 2493 struct pqi_scsi_dev, new_device_list_entry); 2494 2495 memcpy(device->scsi3addr, scsi3addr, sizeof(device->scsi3addr)); 2496 device->is_physical_device = is_physical_device; 2497 if (is_physical_device) { 2498 device->device_type = phys_lun->device_type; 2499 if (device->device_type == SA_DEVICE_TYPE_EXPANDER_SMP) 2500 device->is_expander_smp_device = true; 2501 } else { 2502 device->is_external_raid_device = 2503 pqi_is_external_raid_addr(scsi3addr); 2504 } 2505 2506 if (!pqi_is_supported_device(device)) 2507 continue; 2508 2509 /* Gather information about the device. */ 2510 rc = pqi_get_device_info(ctrl_info, device, id_phys); 2511 if (rc == -ENOMEM) { 2512 dev_warn(&ctrl_info->pci_dev->dev, "%s\n", 2513 out_of_memory_msg); 2514 goto out; 2515 } 2516 if (rc) { 2517 if (device->is_physical_device) 2518 dev_warn(&ctrl_info->pci_dev->dev, 2519 "obtaining device info failed, skipping physical device %016llx%016llx\n", 2520 get_unaligned_be64(&phys_lun->wwid[0]), 2521 get_unaligned_be64(&phys_lun->wwid[8])); 2522 else 2523 dev_warn(&ctrl_info->pci_dev->dev, 2524 "obtaining device info failed, skipping logical device %08x%08x\n", 2525 *((u32 *)&device->scsi3addr), 2526 *((u32 *)&device->scsi3addr[4])); 2527 rc = 0; 2528 continue; 2529 } 2530 2531 /* Do not present disks that the OS cannot fully probe. */ 2532 if (pqi_keep_device_offline(device)) 2533 continue; 2534 2535 pqi_assign_bus_target_lun(device); 2536 2537 if (device->is_physical_device) { 2538 memcpy(device->wwid, phys_lun->wwid, sizeof(device->wwid)); 2539 if ((phys_lun->device_flags & 2540 CISS_REPORT_PHYS_DEV_FLAG_AIO_ENABLED) && 2541 phys_lun->aio_handle) { 2542 device->aio_enabled = true; 2543 device->aio_handle = 2544 phys_lun->aio_handle; 2545 } 2546 } else { 2547 memcpy(device->volume_id, log_lun->volume_id, 2548 sizeof(device->volume_id)); 2549 } 2550 2551 device->sas_address = get_unaligned_be64(&device->wwid[0]); 2552 2553 new_device_list[num_valid_devices++] = device; 2554 } 2555 2556 pqi_update_device_list(ctrl_info, new_device_list, num_valid_devices); 2557 2558out: 2559 list_for_each_entry_safe(device, next, &new_device_list_head, 2560 new_device_list_entry) { 2561 if (device->keep_device) 2562 continue; 2563 list_del(&device->new_device_list_entry); 2564 pqi_free_device(device); 2565 } 2566 2567 kfree(new_device_list); 2568 kfree(physdev_list); 2569 kfree(logdev_list); 2570 kfree(id_phys); 2571 2572 return rc; 2573} 2574 2575static int pqi_scan_scsi_devices(struct pqi_ctrl_info *ctrl_info) 2576{ 2577 int rc; 2578 int mutex_acquired; 2579 2580 if (pqi_ctrl_offline(ctrl_info)) 2581 return -ENXIO; 2582 2583 mutex_acquired = mutex_trylock(&ctrl_info->scan_mutex); 2584 2585 if (!mutex_acquired) { 2586 if (pqi_ctrl_scan_blocked(ctrl_info)) 2587 return -EBUSY; 2588 pqi_schedule_rescan_worker_delayed(ctrl_info); 2589 return -EINPROGRESS; 2590 } 2591 2592 rc = pqi_update_scsi_devices(ctrl_info); 2593 if (rc && !pqi_ctrl_scan_blocked(ctrl_info)) 2594 pqi_schedule_rescan_worker_delayed(ctrl_info); 2595 2596 mutex_unlock(&ctrl_info->scan_mutex); 2597 2598 return rc; 2599} 2600 2601static void pqi_scan_start(struct Scsi_Host *shost) 2602{ 2603 struct pqi_ctrl_info *ctrl_info; 2604 2605 ctrl_info = shost_to_hba(shost); 2606 2607 pqi_scan_scsi_devices(ctrl_info); 2608} 2609 2610/* Returns TRUE if scan is finished. */ 2611 2612static int pqi_scan_finished(struct Scsi_Host *shost, 2613 unsigned long elapsed_time) 2614{ 2615 struct pqi_ctrl_info *ctrl_info; 2616 2617 ctrl_info = shost_priv(shost); 2618 2619 return !mutex_is_locked(&ctrl_info->scan_mutex); 2620} 2621 2622static inline void pqi_set_encryption_info(struct pqi_encryption_info *encryption_info, 2623 struct raid_map *raid_map, u64 first_block) 2624{ 2625 u32 volume_blk_size; 2626 2627 /* 2628 * Set the encryption tweak values based on logical block address. 2629 * If the block size is 512, the tweak value is equal to the LBA. 2630 * For other block sizes, tweak value is (LBA * block size) / 512. 2631 */ 2632 volume_blk_size = get_unaligned_le32(&raid_map->volume_blk_size); 2633 if (volume_blk_size != 512) 2634 first_block = (first_block * volume_blk_size) / 512; 2635 2636 encryption_info->data_encryption_key_index = 2637 get_unaligned_le16(&raid_map->data_encryption_key_index); 2638 encryption_info->encrypt_tweak_lower = lower_32_bits(first_block); 2639 encryption_info->encrypt_tweak_upper = upper_32_bits(first_block); 2640} 2641 2642/* 2643 * Attempt to perform RAID bypass mapping for a logical volume I/O. 2644 */ 2645 2646static bool pqi_aio_raid_level_supported(struct pqi_ctrl_info *ctrl_info, 2647 struct pqi_scsi_dev_raid_map_data *rmd) 2648{ 2649 bool is_supported = true; 2650 2651 switch (rmd->raid_level) { 2652 case SA_RAID_0: 2653 break; 2654 case SA_RAID_1: 2655 if (rmd->is_write && (!ctrl_info->enable_r1_writes || 2656 rmd->data_length > ctrl_info->max_write_raid_1_10_2drive)) 2657 is_supported = false; 2658 break; 2659 case SA_RAID_TRIPLE: 2660 if (rmd->is_write && (!ctrl_info->enable_r1_writes || 2661 rmd->data_length > ctrl_info->max_write_raid_1_10_3drive)) 2662 is_supported = false; 2663 break; 2664 case SA_RAID_5: 2665 if (rmd->is_write && (!ctrl_info->enable_r5_writes || 2666 rmd->data_length > ctrl_info->max_write_raid_5_6)) 2667 is_supported = false; 2668 break; 2669 case SA_RAID_6: 2670 if (rmd->is_write && (!ctrl_info->enable_r6_writes || 2671 rmd->data_length > ctrl_info->max_write_raid_5_6)) 2672 is_supported = false; 2673 break; 2674 default: 2675 is_supported = false; 2676 break; 2677 } 2678 2679 return is_supported; 2680} 2681 2682#define PQI_RAID_BYPASS_INELIGIBLE 1 2683 2684static int pqi_get_aio_lba_and_block_count(struct scsi_cmnd *scmd, 2685 struct pqi_scsi_dev_raid_map_data *rmd) 2686{ 2687 /* Check for valid opcode, get LBA and block count. */ 2688 switch (scmd->cmnd[0]) { 2689 case WRITE_6: 2690 rmd->is_write = true; 2691 fallthrough; 2692 case READ_6: 2693 rmd->first_block = (u64)(((scmd->cmnd[1] & 0x1f) << 16) | 2694 (scmd->cmnd[2] << 8) | scmd->cmnd[3]); 2695 rmd->block_cnt = (u32)scmd->cmnd[4]; 2696 if (rmd->block_cnt == 0) 2697 rmd->block_cnt = 256; 2698 break; 2699 case WRITE_10: 2700 rmd->is_write = true; 2701 fallthrough; 2702 case READ_10: 2703 rmd->first_block = (u64)get_unaligned_be32(&scmd->cmnd[2]); 2704 rmd->block_cnt = (u32)get_unaligned_be16(&scmd->cmnd[7]); 2705 break; 2706 case WRITE_12: 2707 rmd->is_write = true; 2708 fallthrough; 2709 case READ_12: 2710 rmd->first_block = (u64)get_unaligned_be32(&scmd->cmnd[2]); 2711 rmd->block_cnt = get_unaligned_be32(&scmd->cmnd[6]); 2712 break; 2713 case WRITE_16: 2714 rmd->is_write = true; 2715 fallthrough; 2716 case READ_16: 2717 rmd->first_block = get_unaligned_be64(&scmd->cmnd[2]); 2718 rmd->block_cnt = get_unaligned_be32(&scmd->cmnd[10]); 2719 break; 2720 default: 2721 /* Process via normal I/O path. */ 2722 return PQI_RAID_BYPASS_INELIGIBLE; 2723 } 2724 2725 put_unaligned_le32(scsi_bufflen(scmd), &rmd->data_length); 2726 2727 return 0; 2728} 2729 2730static int pci_get_aio_common_raid_map_values(struct pqi_ctrl_info *ctrl_info, 2731 struct pqi_scsi_dev_raid_map_data *rmd, struct raid_map *raid_map) 2732{ 2733#if BITS_PER_LONG == 32 2734 u64 tmpdiv; 2735#endif 2736 2737 rmd->last_block = rmd->first_block + rmd->block_cnt - 1; 2738 2739 /* Check for invalid block or wraparound. */ 2740 if (rmd->last_block >= 2741 get_unaligned_le64(&raid_map->volume_blk_cnt) || 2742 rmd->last_block < rmd->first_block) 2743 return PQI_RAID_BYPASS_INELIGIBLE; 2744 2745 rmd->data_disks_per_row = 2746 get_unaligned_le16(&raid_map->data_disks_per_row); 2747 rmd->strip_size = get_unaligned_le16(&raid_map->strip_size); 2748 rmd->layout_map_count = get_unaligned_le16(&raid_map->layout_map_count); 2749 2750 /* Calculate stripe information for the request. */ 2751 rmd->blocks_per_row = rmd->data_disks_per_row * rmd->strip_size; 2752 if (rmd->blocks_per_row == 0) /* Used as a divisor in many calculations */ 2753 return PQI_RAID_BYPASS_INELIGIBLE; 2754#if BITS_PER_LONG == 32 2755 tmpdiv = rmd->first_block; 2756 do_div(tmpdiv, rmd->blocks_per_row); 2757 rmd->first_row = tmpdiv; 2758 tmpdiv = rmd->last_block; 2759 do_div(tmpdiv, rmd->blocks_per_row); 2760 rmd->last_row = tmpdiv; 2761 rmd->first_row_offset = (u32)(rmd->first_block - (rmd->first_row * rmd->blocks_per_row)); 2762 rmd->last_row_offset = (u32)(rmd->last_block - (rmd->last_row * rmd->blocks_per_row)); 2763 tmpdiv = rmd->first_row_offset; 2764 do_div(tmpdiv, rmd->strip_size); 2765 rmd->first_column = tmpdiv; 2766 tmpdiv = rmd->last_row_offset; 2767 do_div(tmpdiv, rmd->strip_size); 2768 rmd->last_column = tmpdiv; 2769#else 2770 rmd->first_row = rmd->first_block / rmd->blocks_per_row; 2771 rmd->last_row = rmd->last_block / rmd->blocks_per_row; 2772 rmd->first_row_offset = (u32)(rmd->first_block - 2773 (rmd->first_row * rmd->blocks_per_row)); 2774 rmd->last_row_offset = (u32)(rmd->last_block - (rmd->last_row * 2775 rmd->blocks_per_row)); 2776 rmd->first_column = rmd->first_row_offset / rmd->strip_size; 2777 rmd->last_column = rmd->last_row_offset / rmd->strip_size; 2778#endif 2779 2780 /* If this isn't a single row/column then give to the controller. */ 2781 if (rmd->first_row != rmd->last_row || 2782 rmd->first_column != rmd->last_column) 2783 return PQI_RAID_BYPASS_INELIGIBLE; 2784 2785 /* Proceeding with driver mapping. */ 2786 rmd->total_disks_per_row = rmd->data_disks_per_row + 2787 get_unaligned_le16(&raid_map->metadata_disks_per_row); 2788 rmd->map_row = ((u32)(rmd->first_row >> 2789 raid_map->parity_rotation_shift)) % 2790 get_unaligned_le16(&raid_map->row_cnt); 2791 rmd->map_index = (rmd->map_row * rmd->total_disks_per_row) + 2792 rmd->first_column; 2793 2794 return 0; 2795} 2796 2797static int pqi_calc_aio_r5_or_r6(struct pqi_scsi_dev_raid_map_data *rmd, 2798 struct raid_map *raid_map) 2799{ 2800#if BITS_PER_LONG == 32 2801 u64 tmpdiv; 2802#endif 2803 2804 if (rmd->blocks_per_row == 0) /* Used as a divisor in many calculations */ 2805 return PQI_RAID_BYPASS_INELIGIBLE; 2806 2807 /* RAID 50/60 */ 2808 /* Verify first and last block are in same RAID group. */ 2809 rmd->stripesize = rmd->blocks_per_row * rmd->layout_map_count; 2810#if BITS_PER_LONG == 32 2811 tmpdiv = rmd->first_block; 2812 rmd->first_group = do_div(tmpdiv, rmd->stripesize); 2813 tmpdiv = rmd->first_group; 2814 do_div(tmpdiv, rmd->blocks_per_row); 2815 rmd->first_group = tmpdiv; 2816 tmpdiv = rmd->last_block; 2817 rmd->last_group = do_div(tmpdiv, rmd->stripesize); 2818 tmpdiv = rmd->last_group; 2819 do_div(tmpdiv, rmd->blocks_per_row); 2820 rmd->last_group = tmpdiv; 2821#else 2822 rmd->first_group = (rmd->first_block % rmd->stripesize) / rmd->blocks_per_row; 2823 rmd->last_group = (rmd->last_block % rmd->stripesize) / rmd->blocks_per_row; 2824#endif 2825 if (rmd->first_group != rmd->last_group) 2826 return PQI_RAID_BYPASS_INELIGIBLE; 2827 2828 /* Verify request is in a single row of RAID 5/6. */ 2829#if BITS_PER_LONG == 32 2830 tmpdiv = rmd->first_block; 2831 do_div(tmpdiv, rmd->stripesize); 2832 rmd->first_row = tmpdiv; 2833 rmd->r5or6_first_row = tmpdiv; 2834 tmpdiv = rmd->last_block; 2835 do_div(tmpdiv, rmd->stripesize); 2836 rmd->r5or6_last_row = tmpdiv; 2837#else 2838 rmd->first_row = rmd->r5or6_first_row = 2839 rmd->first_block / rmd->stripesize; 2840 rmd->r5or6_last_row = rmd->last_block / rmd->stripesize; 2841#endif 2842 if (rmd->r5or6_first_row != rmd->r5or6_last_row) 2843 return PQI_RAID_BYPASS_INELIGIBLE; 2844 2845 /* Verify request is in a single column. */ 2846#if BITS_PER_LONG == 32 2847 tmpdiv = rmd->first_block; 2848 rmd->first_row_offset = do_div(tmpdiv, rmd->stripesize); 2849 tmpdiv = rmd->first_row_offset; 2850 rmd->first_row_offset = (u32)do_div(tmpdiv, rmd->blocks_per_row); 2851 rmd->r5or6_first_row_offset = rmd->first_row_offset; 2852 tmpdiv = rmd->last_block; 2853 rmd->r5or6_last_row_offset = do_div(tmpdiv, rmd->stripesize); 2854 tmpdiv = rmd->r5or6_last_row_offset; 2855 rmd->r5or6_last_row_offset = do_div(tmpdiv, rmd->blocks_per_row); 2856 tmpdiv = rmd->r5or6_first_row_offset; 2857 do_div(tmpdiv, rmd->strip_size); 2858 rmd->first_column = rmd->r5or6_first_column = tmpdiv; 2859 tmpdiv = rmd->r5or6_last_row_offset; 2860 do_div(tmpdiv, rmd->strip_size); 2861 rmd->r5or6_last_column = tmpdiv; 2862#else 2863 rmd->first_row_offset = rmd->r5or6_first_row_offset = 2864 (u32)((rmd->first_block % rmd->stripesize) % 2865 rmd->blocks_per_row); 2866 2867 rmd->r5or6_last_row_offset = 2868 (u32)((rmd->last_block % rmd->stripesize) % 2869 rmd->blocks_per_row); 2870 2871 rmd->first_column = 2872 rmd->r5or6_first_row_offset / rmd->strip_size; 2873 rmd->r5or6_first_column = rmd->first_column; 2874 rmd->r5or6_last_column = rmd->r5or6_last_row_offset / rmd->strip_size; 2875#endif 2876 if (rmd->r5or6_first_column != rmd->r5or6_last_column) 2877 return PQI_RAID_BYPASS_INELIGIBLE; 2878 2879 /* Request is eligible. */ 2880 rmd->map_row = 2881 ((u32)(rmd->first_row >> raid_map->parity_rotation_shift)) % 2882 get_unaligned_le16(&raid_map->row_cnt); 2883 2884 rmd->map_index = (rmd->first_group * 2885 (get_unaligned_le16(&raid_map->row_cnt) * 2886 rmd->total_disks_per_row)) + 2887 (rmd->map_row * rmd->total_disks_per_row) + rmd->first_column; 2888 2889 if (rmd->is_write) { 2890 u32 index; 2891 2892 /* 2893 * p_parity_it_nexus and q_parity_it_nexus are pointers to the 2894 * parity entries inside the device's raid_map. 2895 * 2896 * A device's RAID map is bounded by: number of RAID disks squared. 2897 * 2898 * The devices RAID map size is checked during device 2899 * initialization. 2900 */ 2901 index = DIV_ROUND_UP(rmd->map_index + 1, rmd->total_disks_per_row); 2902 index *= rmd->total_disks_per_row; 2903 index -= get_unaligned_le16(&raid_map->metadata_disks_per_row); 2904 2905 rmd->p_parity_it_nexus = raid_map->disk_data[index].aio_handle; 2906 if (rmd->raid_level == SA_RAID_6) { 2907 rmd->q_parity_it_nexus = raid_map->disk_data[index + 1].aio_handle; 2908 rmd->xor_mult = raid_map->disk_data[rmd->map_index].xor_mult[1]; 2909 } 2910#if BITS_PER_LONG == 32 2911 tmpdiv = rmd->first_block; 2912 do_div(tmpdiv, rmd->blocks_per_row); 2913 rmd->row = tmpdiv; 2914#else 2915 rmd->row = rmd->first_block / rmd->blocks_per_row; 2916#endif 2917 } 2918 2919 return 0; 2920} 2921 2922static void pqi_set_aio_cdb(struct pqi_scsi_dev_raid_map_data *rmd) 2923{ 2924 /* Build the new CDB for the physical disk I/O. */ 2925 if (rmd->disk_block > 0xffffffff) { 2926 rmd->cdb[0] = rmd->is_write ? WRITE_16 : READ_16; 2927 rmd->cdb[1] = 0; 2928 put_unaligned_be64(rmd->disk_block, &rmd->cdb[2]); 2929 put_unaligned_be32(rmd->disk_block_cnt, &rmd->cdb[10]); 2930 rmd->cdb[14] = 0; 2931 rmd->cdb[15] = 0; 2932 rmd->cdb_length = 16; 2933 } else { 2934 rmd->cdb[0] = rmd->is_write ? WRITE_10 : READ_10; 2935 rmd->cdb[1] = 0; 2936 put_unaligned_be32((u32)rmd->disk_block, &rmd->cdb[2]); 2937 rmd->cdb[6] = 0; 2938 put_unaligned_be16((u16)rmd->disk_block_cnt, &rmd->cdb[7]); 2939 rmd->cdb[9] = 0; 2940 rmd->cdb_length = 10; 2941 } 2942} 2943 2944static void pqi_calc_aio_r1_nexus(struct raid_map *raid_map, 2945 struct pqi_scsi_dev_raid_map_data *rmd) 2946{ 2947 u32 index; 2948 u32 group; 2949 2950 group = rmd->map_index / rmd->data_disks_per_row; 2951 2952 index = rmd->map_index - (group * rmd->data_disks_per_row); 2953 rmd->it_nexus[0] = raid_map->disk_data[index].aio_handle; 2954 index += rmd->data_disks_per_row; 2955 rmd->it_nexus[1] = raid_map->disk_data[index].aio_handle; 2956 if (rmd->layout_map_count > 2) { 2957 index += rmd->data_disks_per_row; 2958 rmd->it_nexus[2] = raid_map->disk_data[index].aio_handle; 2959 } 2960 2961 rmd->num_it_nexus_entries = rmd->layout_map_count; 2962} 2963 2964static int pqi_raid_bypass_submit_scsi_cmd(struct pqi_ctrl_info *ctrl_info, 2965 struct pqi_scsi_dev *device, struct scsi_cmnd *scmd, 2966 struct pqi_queue_group *queue_group) 2967{ 2968 int rc; 2969 struct raid_map *raid_map; 2970 u32 group; 2971 u32 next_bypass_group; 2972 struct pqi_encryption_info *encryption_info_ptr; 2973 struct pqi_encryption_info encryption_info; 2974 struct pqi_scsi_dev_raid_map_data rmd = { 0 }; 2975 2976 rc = pqi_get_aio_lba_and_block_count(scmd, &rmd); 2977 if (rc) 2978 return PQI_RAID_BYPASS_INELIGIBLE; 2979 2980 rmd.raid_level = device->raid_level; 2981 2982 if (!pqi_aio_raid_level_supported(ctrl_info, &rmd)) 2983 return PQI_RAID_BYPASS_INELIGIBLE; 2984 2985 if (unlikely(rmd.block_cnt == 0)) 2986 return PQI_RAID_BYPASS_INELIGIBLE; 2987 2988 raid_map = device->raid_map; 2989 2990 rc = pci_get_aio_common_raid_map_values(ctrl_info, &rmd, raid_map); 2991 if (rc) 2992 return PQI_RAID_BYPASS_INELIGIBLE; 2993 2994 if (device->raid_level == SA_RAID_1 || 2995 device->raid_level == SA_RAID_TRIPLE) { 2996 if (rmd.is_write) { 2997 pqi_calc_aio_r1_nexus(raid_map, &rmd); 2998 } else { 2999 group = device->next_bypass_group[rmd.map_index]; 3000 next_bypass_group = group + 1; 3001 if (next_bypass_group >= rmd.layout_map_count) 3002 next_bypass_group = 0; 3003 device->next_bypass_group[rmd.map_index] = next_bypass_group; 3004 rmd.map_index += group * rmd.data_disks_per_row; 3005 } 3006 } else if ((device->raid_level == SA_RAID_5 || 3007 device->raid_level == SA_RAID_6) && 3008 (rmd.layout_map_count > 1 || rmd.is_write)) { 3009 rc = pqi_calc_aio_r5_or_r6(&rmd, raid_map); 3010 if (rc) 3011 return PQI_RAID_BYPASS_INELIGIBLE; 3012 } 3013 3014 if (unlikely(rmd.map_index >= RAID_MAP_MAX_ENTRIES)) 3015 return PQI_RAID_BYPASS_INELIGIBLE; 3016 3017 rmd.aio_handle = raid_map->disk_data[rmd.map_index].aio_handle; 3018 rmd.disk_block = get_unaligned_le64(&raid_map->disk_starting_blk) + 3019 rmd.first_row * rmd.strip_size + 3020 (rmd.first_row_offset - rmd.first_column * rmd.strip_size); 3021 rmd.disk_block_cnt = rmd.block_cnt; 3022 3023 /* Handle differing logical/physical block sizes. */ 3024 if (raid_map->phys_blk_shift) { 3025 rmd.disk_block <<= raid_map->phys_blk_shift; 3026 rmd.disk_block_cnt <<= raid_map->phys_blk_shift; 3027 } 3028 3029 if (unlikely(rmd.disk_block_cnt > 0xffff)) 3030 return PQI_RAID_BYPASS_INELIGIBLE; 3031 3032 pqi_set_aio_cdb(&rmd); 3033 3034 if (get_unaligned_le16(&raid_map->flags) & RAID_MAP_ENCRYPTION_ENABLED) { 3035 if (rmd.data_length > device->max_transfer_encrypted) 3036 return PQI_RAID_BYPASS_INELIGIBLE; 3037 pqi_set_encryption_info(&encryption_info, raid_map, rmd.first_block); 3038 encryption_info_ptr = &encryption_info; 3039 } else { 3040 encryption_info_ptr = NULL; 3041 } 3042 3043 if (rmd.is_write) { 3044 switch (device->raid_level) { 3045 case SA_RAID_1: 3046 case SA_RAID_TRIPLE: 3047 return pqi_aio_submit_r1_write_io(ctrl_info, scmd, queue_group, 3048 encryption_info_ptr, device, &rmd); 3049 case SA_RAID_5: 3050 case SA_RAID_6: 3051 return pqi_aio_submit_r56_write_io(ctrl_info, scmd, queue_group, 3052 encryption_info_ptr, device, &rmd); 3053 } 3054 } 3055 3056 return pqi_aio_submit_io(ctrl_info, scmd, rmd.aio_handle, 3057 rmd.cdb, rmd.cdb_length, queue_group, 3058 encryption_info_ptr, true, false); 3059} 3060 3061#define PQI_STATUS_IDLE 0x0 3062 3063#define PQI_CREATE_ADMIN_QUEUE_PAIR 1 3064#define PQI_DELETE_ADMIN_QUEUE_PAIR 2 3065 3066#define PQI_DEVICE_STATE_POWER_ON_AND_RESET 0x0 3067#define PQI_DEVICE_STATE_STATUS_AVAILABLE 0x1 3068#define PQI_DEVICE_STATE_ALL_REGISTERS_READY 0x2 3069#define PQI_DEVICE_STATE_ADMIN_QUEUE_PAIR_READY 0x3 3070#define PQI_DEVICE_STATE_ERROR 0x4 3071 3072#define PQI_MODE_READY_TIMEOUT_SECS 30 3073#define PQI_MODE_READY_POLL_INTERVAL_MSECS 1 3074 3075static int pqi_wait_for_pqi_mode_ready(struct pqi_ctrl_info *ctrl_info) 3076{ 3077 struct pqi_device_registers __iomem *pqi_registers; 3078 unsigned long timeout; 3079 u64 signature; 3080 u8 status; 3081 3082 pqi_registers = ctrl_info->pqi_registers; 3083 timeout = (PQI_MODE_READY_TIMEOUT_SECS * HZ) + jiffies; 3084 3085 while (1) { 3086 signature = readq(&pqi_registers->signature); 3087 if (memcmp(&signature, PQI_DEVICE_SIGNATURE, 3088 sizeof(signature)) == 0) 3089 break; 3090 if (time_after(jiffies, timeout)) { 3091 dev_err(&ctrl_info->pci_dev->dev, 3092 "timed out waiting for PQI signature\n"); 3093 return -ETIMEDOUT; 3094 } 3095 msleep(PQI_MODE_READY_POLL_INTERVAL_MSECS); 3096 } 3097 3098 while (1) { 3099 status = readb(&pqi_registers->function_and_status_code); 3100 if (status == PQI_STATUS_IDLE) 3101 break; 3102 if (time_after(jiffies, timeout)) { 3103 dev_err(&ctrl_info->pci_dev->dev, 3104 "timed out waiting for PQI IDLE\n"); 3105 return -ETIMEDOUT; 3106 } 3107 msleep(PQI_MODE_READY_POLL_INTERVAL_MSECS); 3108 } 3109 3110 while (1) { 3111 if (readl(&pqi_registers->device_status) == 3112 PQI_DEVICE_STATE_ALL_REGISTERS_READY) 3113 break; 3114 if (time_after(jiffies, timeout)) { 3115 dev_err(&ctrl_info->pci_dev->dev, 3116 "timed out waiting for PQI all registers ready\n"); 3117 return -ETIMEDOUT; 3118 } 3119 msleep(PQI_MODE_READY_POLL_INTERVAL_MSECS); 3120 } 3121 3122 return 0; 3123} 3124 3125static inline void pqi_aio_path_disabled(struct pqi_io_request *io_request) 3126{ 3127 struct pqi_scsi_dev *device; 3128 3129 device = io_request->scmd->device->hostdata; 3130 device->raid_bypass_enabled = false; 3131 device->aio_enabled = false; 3132} 3133 3134static inline void pqi_take_device_offline(struct scsi_device *sdev, char *path) 3135{ 3136 struct pqi_ctrl_info *ctrl_info; 3137 struct pqi_scsi_dev *device; 3138 3139 device = sdev->hostdata; 3140 if (device->device_offline) 3141 return; 3142 3143 device->device_offline = true; 3144 ctrl_info = shost_to_hba(sdev->host); 3145 pqi_schedule_rescan_worker(ctrl_info); 3146 dev_err(&ctrl_info->pci_dev->dev, "re-scanning %s scsi %d:%d:%d:%d\n", 3147 path, ctrl_info->scsi_host->host_no, device->bus, 3148 device->target, device->lun); 3149} 3150 3151static void pqi_process_raid_io_error(struct pqi_io_request *io_request) 3152{ 3153 u8 scsi_status; 3154 u8 host_byte; 3155 struct scsi_cmnd *scmd; 3156 struct pqi_raid_error_info *error_info; 3157 size_t sense_data_length; 3158 int residual_count; 3159 int xfer_count; 3160 struct scsi_sense_hdr sshdr; 3161 3162 scmd = io_request->scmd; 3163 if (!scmd) 3164 return; 3165 3166 error_info = io_request->error_info; 3167 scsi_status = error_info->status; 3168 host_byte = DID_OK; 3169 3170 switch (error_info->data_out_result) { 3171 case PQI_DATA_IN_OUT_GOOD: 3172 break; 3173 case PQI_DATA_IN_OUT_UNDERFLOW: 3174 xfer_count = 3175 get_unaligned_le32(&error_info->data_out_transferred); 3176 residual_count = scsi_bufflen(scmd) - xfer_count; 3177 scsi_set_resid(scmd, residual_count); 3178 if (xfer_count < scmd->underflow) 3179 host_byte = DID_SOFT_ERROR; 3180 break; 3181 case PQI_DATA_IN_OUT_UNSOLICITED_ABORT: 3182 case PQI_DATA_IN_OUT_ABORTED: 3183 host_byte = DID_ABORT; 3184 break; 3185 case PQI_DATA_IN_OUT_TIMEOUT: 3186 host_byte = DID_TIME_OUT; 3187 break; 3188 case PQI_DATA_IN_OUT_BUFFER_OVERFLOW: 3189 case PQI_DATA_IN_OUT_PROTOCOL_ERROR: 3190 case PQI_DATA_IN_OUT_BUFFER_ERROR: 3191 case PQI_DATA_IN_OUT_BUFFER_OVERFLOW_DESCRIPTOR_AREA: 3192 case PQI_DATA_IN_OUT_BUFFER_OVERFLOW_BRIDGE: 3193 case PQI_DATA_IN_OUT_ERROR: 3194 case PQI_DATA_IN_OUT_HARDWARE_ERROR: 3195 case PQI_DATA_IN_OUT_PCIE_FABRIC_ERROR: 3196 case PQI_DATA_IN_OUT_PCIE_COMPLETION_TIMEOUT: 3197 case PQI_DATA_IN_OUT_PCIE_COMPLETER_ABORT_RECEIVED: 3198 case PQI_DATA_IN_OUT_PCIE_UNSUPPORTED_REQUEST_RECEIVED: 3199 case PQI_DATA_IN_OUT_PCIE_ECRC_CHECK_FAILED: 3200 case PQI_DATA_IN_OUT_PCIE_UNSUPPORTED_REQUEST: 3201 case PQI_DATA_IN_OUT_PCIE_ACS_VIOLATION: 3202 case PQI_DATA_IN_OUT_PCIE_TLP_PREFIX_BLOCKED: 3203 case PQI_DATA_IN_OUT_PCIE_POISONED_MEMORY_READ: 3204 default: 3205 host_byte = DID_ERROR; 3206 break; 3207 } 3208 3209 sense_data_length = get_unaligned_le16(&error_info->sense_data_length); 3210 if (sense_data_length == 0) 3211 sense_data_length = 3212 get_unaligned_le16(&error_info->response_data_length); 3213 if (sense_data_length) { 3214 if (sense_data_length > sizeof(error_info->data)) 3215 sense_data_length = sizeof(error_info->data); 3216 3217 if (scsi_status == SAM_STAT_CHECK_CONDITION && 3218 scsi_normalize_sense(error_info->data, 3219 sense_data_length, &sshdr) && 3220 sshdr.sense_key == HARDWARE_ERROR && 3221 sshdr.asc == 0x3e) { 3222 struct pqi_ctrl_info *ctrl_info = shost_to_hba(scmd->device->host); 3223 struct pqi_scsi_dev *device = scmd->device->hostdata; 3224 3225 switch (sshdr.ascq) { 3226 case 0x1: /* LOGICAL UNIT FAILURE */ 3227 if (printk_ratelimit()) 3228 scmd_printk(KERN_ERR, scmd, "received 'logical unit failure' from controller for scsi %d:%d:%d:%d\n", 3229 ctrl_info->scsi_host->host_no, device->bus, device->target, device->lun); 3230 pqi_take_device_offline(scmd->device, "RAID"); 3231 host_byte = DID_NO_CONNECT; 3232 break; 3233 3234 default: /* See http://www.t10.org/lists/asc-num.htm#ASC_3E */ 3235 if (printk_ratelimit()) 3236 scmd_printk(KERN_ERR, scmd, "received unhandled error %d from controller for scsi %d:%d:%d:%d\n", 3237 sshdr.ascq, ctrl_info->scsi_host->host_no, device->bus, device->target, device->lun); 3238 break; 3239 } 3240 } 3241 3242 if (sense_data_length > SCSI_SENSE_BUFFERSIZE) 3243 sense_data_length = SCSI_SENSE_BUFFERSIZE; 3244 memcpy(scmd->sense_buffer, error_info->data, 3245 sense_data_length); 3246 } 3247 3248 scmd->result = scsi_status; 3249 set_host_byte(scmd, host_byte); 3250} 3251 3252static void pqi_process_aio_io_error(struct pqi_io_request *io_request) 3253{ 3254 u8 scsi_status; 3255 u8 host_byte; 3256 struct scsi_cmnd *scmd; 3257 struct pqi_aio_error_info *error_info; 3258 size_t sense_data_length; 3259 int residual_count; 3260 int xfer_count; 3261 bool device_offline; 3262 struct pqi_scsi_dev *device; 3263 3264 scmd = io_request->scmd; 3265 error_info = io_request->error_info; 3266 host_byte = DID_OK; 3267 sense_data_length = 0; 3268 device_offline = false; 3269 device = scmd->device->hostdata; 3270 3271 switch (error_info->service_response) { 3272 case PQI_AIO_SERV_RESPONSE_COMPLETE: 3273 scsi_status = error_info->status; 3274 break; 3275 case PQI_AIO_SERV_RESPONSE_FAILURE: 3276 switch (error_info->status) { 3277 case PQI_AIO_STATUS_IO_ABORTED: 3278 scsi_status = SAM_STAT_TASK_ABORTED; 3279 break; 3280 case PQI_AIO_STATUS_UNDERRUN: 3281 scsi_status = SAM_STAT_GOOD; 3282 residual_count = get_unaligned_le32( 3283 &error_info->residual_count); 3284 scsi_set_resid(scmd, residual_count); 3285 xfer_count = scsi_bufflen(scmd) - residual_count; 3286 if (xfer_count < scmd->underflow) 3287 host_byte = DID_SOFT_ERROR; 3288 break; 3289 case PQI_AIO_STATUS_OVERRUN: 3290 scsi_status = SAM_STAT_GOOD; 3291 break; 3292 case PQI_AIO_STATUS_AIO_PATH_DISABLED: 3293 pqi_aio_path_disabled(io_request); 3294 if (pqi_is_multipath_device(device)) { 3295 pqi_device_remove_start(device); 3296 host_byte = DID_NO_CONNECT; 3297 scsi_status = SAM_STAT_CHECK_CONDITION; 3298 } else { 3299 scsi_status = SAM_STAT_GOOD; 3300 io_request->status = -EAGAIN; 3301 } 3302 break; 3303 case PQI_AIO_STATUS_NO_PATH_TO_DEVICE: 3304 case PQI_AIO_STATUS_INVALID_DEVICE: 3305 if (!io_request->raid_bypass) { 3306 device_offline = true; 3307 pqi_take_device_offline(scmd->device, "AIO"); 3308 host_byte = DID_NO_CONNECT; 3309 } 3310 scsi_status = SAM_STAT_CHECK_CONDITION; 3311 break; 3312 case PQI_AIO_STATUS_IO_ERROR: 3313 default: 3314 scsi_status = SAM_STAT_CHECK_CONDITION; 3315 break; 3316 } 3317 break; 3318 case PQI_AIO_SERV_RESPONSE_TMF_COMPLETE: 3319 case PQI_AIO_SERV_RESPONSE_TMF_SUCCEEDED: 3320 scsi_status = SAM_STAT_GOOD; 3321 break; 3322 case PQI_AIO_SERV_RESPONSE_TMF_REJECTED: 3323 case PQI_AIO_SERV_RESPONSE_TMF_INCORRECT_LUN: 3324 default: 3325 scsi_status = SAM_STAT_CHECK_CONDITION; 3326 break; 3327 } 3328 3329 if (error_info->data_present) { 3330 sense_data_length = 3331 get_unaligned_le16(&error_info->data_length); 3332 if (sense_data_length) { 3333 if (sense_data_length > sizeof(error_info->data)) 3334 sense_data_length = sizeof(error_info->data); 3335 if (sense_data_length > SCSI_SENSE_BUFFERSIZE) 3336 sense_data_length = SCSI_SENSE_BUFFERSIZE; 3337 memcpy(scmd->sense_buffer, error_info->data, 3338 sense_data_length); 3339 } 3340 } 3341 3342 if (device_offline && sense_data_length == 0) 3343 scsi_build_sense(scmd, 0, HARDWARE_ERROR, 0x3e, 0x1); 3344 3345 scmd->result = scsi_status; 3346 set_host_byte(scmd, host_byte); 3347} 3348 3349static void pqi_process_io_error(unsigned int iu_type, 3350 struct pqi_io_request *io_request) 3351{ 3352 switch (iu_type) { 3353 case PQI_RESPONSE_IU_RAID_PATH_IO_ERROR: 3354 pqi_process_raid_io_error(io_request); 3355 break; 3356 case PQI_RESPONSE_IU_AIO_PATH_IO_ERROR: 3357 pqi_process_aio_io_error(io_request); 3358 break; 3359 } 3360} 3361 3362static int pqi_interpret_task_management_response(struct pqi_ctrl_info *ctrl_info, 3363 struct pqi_task_management_response *response) 3364{ 3365 int rc; 3366 3367 switch (response->response_code) { 3368 case SOP_TMF_COMPLETE: 3369 case SOP_TMF_FUNCTION_SUCCEEDED: 3370 rc = 0; 3371 break; 3372 case SOP_TMF_REJECTED: 3373 rc = -EAGAIN; 3374 break; 3375 case SOP_TMF_INCORRECT_LOGICAL_UNIT: 3376 rc = -ENODEV; 3377 break; 3378 default: 3379 rc = -EIO; 3380 break; 3381 } 3382 3383 if (rc) 3384 dev_err(&ctrl_info->pci_dev->dev, 3385 "Task Management Function error: %d (response code: %u)\n", rc, response->response_code); 3386 3387 return rc; 3388} 3389 3390static inline void pqi_invalid_response(struct pqi_ctrl_info *ctrl_info, 3391 enum pqi_ctrl_shutdown_reason ctrl_shutdown_reason) 3392{ 3393 pqi_take_ctrl_offline(ctrl_info, ctrl_shutdown_reason); 3394} 3395 3396static int pqi_process_io_intr(struct pqi_ctrl_info *ctrl_info, struct pqi_queue_group *queue_group) 3397{ 3398 int num_responses; 3399 pqi_index_t oq_pi; 3400 pqi_index_t oq_ci; 3401 struct pqi_io_request *io_request; 3402 struct pqi_io_response *response; 3403 u16 request_id; 3404 3405 num_responses = 0; 3406 oq_ci = queue_group->oq_ci_copy; 3407 3408 while (1) { 3409 oq_pi = readl(queue_group->oq_pi); 3410 if (oq_pi >= ctrl_info->num_elements_per_oq) { 3411 pqi_invalid_response(ctrl_info, PQI_IO_PI_OUT_OF_RANGE); 3412 dev_err(&ctrl_info->pci_dev->dev, 3413 "I/O interrupt: producer index (%u) out of range (0-%u): consumer index: %u\n", 3414 oq_pi, ctrl_info->num_elements_per_oq - 1, oq_ci); 3415 return -1; 3416 } 3417 if (oq_pi == oq_ci) 3418 break; 3419 3420 num_responses++; 3421 response = queue_group->oq_element_array + 3422 (oq_ci * PQI_OPERATIONAL_OQ_ELEMENT_LENGTH); 3423 3424 request_id = get_unaligned_le16(&response->request_id); 3425 if (request_id >= ctrl_info->max_io_slots) { 3426 pqi_invalid_response(ctrl_info, PQI_INVALID_REQ_ID); 3427 dev_err(&ctrl_info->pci_dev->dev, 3428 "request ID in response (%u) out of range (0-%u): producer index: %u consumer index: %u\n", 3429 request_id, ctrl_info->max_io_slots - 1, oq_pi, oq_ci); 3430 return -1; 3431 } 3432 3433 io_request = &ctrl_info->io_request_pool[request_id]; 3434 if (atomic_read(&io_request->refcount) == 0) { 3435 pqi_invalid_response(ctrl_info, PQI_UNMATCHED_REQ_ID); 3436 dev_err(&ctrl_info->pci_dev->dev, 3437 "request ID in response (%u) does not match an outstanding I/O request: producer index: %u consumer index: %u\n", 3438 request_id, oq_pi, oq_ci); 3439 return -1; 3440 } 3441 3442 switch (response->header.iu_type) { 3443 case PQI_RESPONSE_IU_RAID_PATH_IO_SUCCESS: 3444 case PQI_RESPONSE_IU_AIO_PATH_IO_SUCCESS: 3445 if (io_request->scmd) 3446 io_request->scmd->result = 0; 3447 fallthrough; 3448 case PQI_RESPONSE_IU_GENERAL_MANAGEMENT: 3449 break; 3450 case PQI_RESPONSE_IU_VENDOR_GENERAL: 3451 io_request->status = 3452 get_unaligned_le16( 3453 &((struct pqi_vendor_general_response *)response)->status); 3454 break; 3455 case PQI_RESPONSE_IU_TASK_MANAGEMENT: 3456 io_request->status = pqi_interpret_task_management_response(ctrl_info, 3457 (void *)response); 3458 break; 3459 case PQI_RESPONSE_IU_AIO_PATH_DISABLED: 3460 pqi_aio_path_disabled(io_request); 3461 io_request->status = -EAGAIN; 3462 break; 3463 case PQI_RESPONSE_IU_RAID_PATH_IO_ERROR: 3464 case PQI_RESPONSE_IU_AIO_PATH_IO_ERROR: 3465 io_request->error_info = ctrl_info->error_buffer + 3466 (get_unaligned_le16(&response->error_index) * 3467 PQI_ERROR_BUFFER_ELEMENT_LENGTH); 3468 pqi_process_io_error(response->header.iu_type, io_request); 3469 break; 3470 default: 3471 pqi_invalid_response(ctrl_info, PQI_UNEXPECTED_IU_TYPE); 3472 dev_err(&ctrl_info->pci_dev->dev, 3473 "unexpected IU type: 0x%x: producer index: %u consumer index: %u\n", 3474 response->header.iu_type, oq_pi, oq_ci); 3475 return -1; 3476 } 3477 3478 io_request->io_complete_callback(io_request, io_request->context); 3479 3480 /* 3481 * Note that the I/O request structure CANNOT BE TOUCHED after 3482 * returning from the I/O completion callback! 3483 */ 3484 oq_ci = (oq_ci + 1) % ctrl_info->num_elements_per_oq; 3485 } 3486 3487 if (num_responses) { 3488 queue_group->oq_ci_copy = oq_ci; 3489 writel(oq_ci, queue_group->oq_ci); 3490 } 3491 3492 return num_responses; 3493} 3494 3495static inline unsigned int pqi_num_elements_free(unsigned int pi, 3496 unsigned int ci, unsigned int elements_in_queue) 3497{ 3498 unsigned int num_elements_used; 3499 3500 if (pi >= ci) 3501 num_elements_used = pi - ci; 3502 else 3503 num_elements_used = elements_in_queue - ci + pi; 3504 3505 return elements_in_queue - num_elements_used - 1; 3506} 3507 3508static void pqi_send_event_ack(struct pqi_ctrl_info *ctrl_info, 3509 struct pqi_event_acknowledge_request *iu, size_t iu_length) 3510{ 3511 pqi_index_t iq_pi; 3512 pqi_index_t iq_ci; 3513 unsigned long flags; 3514 void *next_element; 3515 struct pqi_queue_group *queue_group; 3516 3517 queue_group = &ctrl_info->queue_groups[PQI_DEFAULT_QUEUE_GROUP]; 3518 put_unaligned_le16(queue_group->oq_id, &iu->header.response_queue_id); 3519 3520 while (1) { 3521 spin_lock_irqsave(&queue_group->submit_lock[RAID_PATH], flags); 3522 3523 iq_pi = queue_group->iq_pi_copy[RAID_PATH]; 3524 iq_ci = readl(queue_group->iq_ci[RAID_PATH]); 3525 3526 if (pqi_num_elements_free(iq_pi, iq_ci, 3527 ctrl_info->num_elements_per_iq)) 3528 break; 3529 3530 spin_unlock_irqrestore( 3531 &queue_group->submit_lock[RAID_PATH], flags); 3532 3533 if (pqi_ctrl_offline(ctrl_info)) 3534 return; 3535 } 3536 3537 next_element = queue_group->iq_element_array[RAID_PATH] + 3538 (iq_pi * PQI_OPERATIONAL_IQ_ELEMENT_LENGTH); 3539 3540 memcpy(next_element, iu, iu_length); 3541 3542 iq_pi = (iq_pi + 1) % ctrl_info->num_elements_per_iq; 3543 queue_group->iq_pi_copy[RAID_PATH] = iq_pi; 3544 3545 /* 3546 * This write notifies the controller that an IU is available to be 3547 * processed. 3548 */ 3549 writel(iq_pi, queue_group->iq_pi[RAID_PATH]); 3550 3551 spin_unlock_irqrestore(&queue_group->submit_lock[RAID_PATH], flags); 3552} 3553 3554static void pqi_acknowledge_event(struct pqi_ctrl_info *ctrl_info, 3555 struct pqi_event *event) 3556{ 3557 struct pqi_event_acknowledge_request request; 3558 3559 memset(&request, 0, sizeof(request)); 3560 3561 request.header.iu_type = PQI_REQUEST_IU_ACKNOWLEDGE_VENDOR_EVENT; 3562 put_unaligned_le16(sizeof(request) - PQI_REQUEST_HEADER_LENGTH, 3563 &request.header.iu_length); 3564 request.event_type = event->event_type; 3565 put_unaligned_le16(event->event_id, &request.event_id); 3566 put_unaligned_le32(event->additional_event_id, &request.additional_event_id); 3567 3568 pqi_send_event_ack(ctrl_info, &request, sizeof(request)); 3569} 3570 3571#define PQI_SOFT_RESET_STATUS_TIMEOUT_SECS 30 3572#define PQI_SOFT_RESET_STATUS_POLL_INTERVAL_SECS 1 3573 3574static enum pqi_soft_reset_status pqi_poll_for_soft_reset_status( 3575 struct pqi_ctrl_info *ctrl_info) 3576{ 3577 u8 status; 3578 unsigned long timeout; 3579 3580 timeout = (PQI_SOFT_RESET_STATUS_TIMEOUT_SECS * HZ) + jiffies; 3581 3582 while (1) { 3583 status = pqi_read_soft_reset_status(ctrl_info); 3584 if (status & PQI_SOFT_RESET_INITIATE) 3585 return RESET_INITIATE_DRIVER; 3586 3587 if (status & PQI_SOFT_RESET_ABORT) 3588 return RESET_ABORT; 3589 3590 if (!sis_is_firmware_running(ctrl_info)) 3591 return RESET_NORESPONSE; 3592 3593 if (time_after(jiffies, timeout)) { 3594 dev_warn(&ctrl_info->pci_dev->dev, 3595 "timed out waiting for soft reset status\n"); 3596 return RESET_TIMEDOUT; 3597 } 3598 3599 ssleep(PQI_SOFT_RESET_STATUS_POLL_INTERVAL_SECS); 3600 } 3601} 3602 3603static void pqi_process_soft_reset(struct pqi_ctrl_info *ctrl_info) 3604{ 3605 int rc; 3606 unsigned int delay_secs; 3607 enum pqi_soft_reset_status reset_status; 3608 3609 if (ctrl_info->soft_reset_handshake_supported) 3610 reset_status = pqi_poll_for_soft_reset_status(ctrl_info); 3611 else 3612 reset_status = RESET_INITIATE_FIRMWARE; 3613 3614 delay_secs = PQI_POST_RESET_DELAY_SECS; 3615 3616 switch (reset_status) { 3617 case RESET_TIMEDOUT: 3618 delay_secs = PQI_POST_OFA_RESET_DELAY_UPON_TIMEOUT_SECS; 3619 fallthrough; 3620 case RESET_INITIATE_DRIVER: 3621 dev_info(&ctrl_info->pci_dev->dev, 3622 "Online Firmware Activation: resetting controller\n"); 3623 sis_soft_reset(ctrl_info); 3624 fallthrough; 3625 case RESET_INITIATE_FIRMWARE: 3626 ctrl_info->pqi_mode_enabled = false; 3627 pqi_save_ctrl_mode(ctrl_info, SIS_MODE); 3628 rc = pqi_ofa_ctrl_restart(ctrl_info, delay_secs); 3629 pqi_ofa_free_host_buffer(ctrl_info); 3630 pqi_ctrl_ofa_done(ctrl_info); 3631 dev_info(&ctrl_info->pci_dev->dev, 3632 "Online Firmware Activation: %s\n", 3633 rc == 0 ? "SUCCESS" : "FAILED"); 3634 break; 3635 case RESET_ABORT: 3636 dev_info(&ctrl_info->pci_dev->dev, 3637 "Online Firmware Activation ABORTED\n"); 3638 if (ctrl_info->soft_reset_handshake_supported) 3639 pqi_clear_soft_reset_status(ctrl_info); 3640 pqi_ofa_free_host_buffer(ctrl_info); 3641 pqi_ctrl_ofa_done(ctrl_info); 3642 pqi_ofa_ctrl_unquiesce(ctrl_info); 3643 break; 3644 case RESET_NORESPONSE: 3645 fallthrough; 3646 default: 3647 dev_err(&ctrl_info->pci_dev->dev, 3648 "unexpected Online Firmware Activation reset status: 0x%x\n", 3649 reset_status); 3650 pqi_ofa_free_host_buffer(ctrl_info); 3651 pqi_ctrl_ofa_done(ctrl_info); 3652 pqi_ofa_ctrl_unquiesce(ctrl_info); 3653 pqi_take_ctrl_offline(ctrl_info, PQI_OFA_RESPONSE_TIMEOUT); 3654 break; 3655 } 3656} 3657 3658static void pqi_ofa_memory_alloc_worker(struct work_struct *work) 3659{ 3660 struct pqi_ctrl_info *ctrl_info; 3661 3662 ctrl_info = container_of(work, struct pqi_ctrl_info, ofa_memory_alloc_work); 3663 3664 pqi_ctrl_ofa_start(ctrl_info); 3665 pqi_ofa_setup_host_buffer(ctrl_info); 3666 pqi_ofa_host_memory_update(ctrl_info); 3667} 3668 3669static void pqi_ofa_quiesce_worker(struct work_struct *work) 3670{ 3671 struct pqi_ctrl_info *ctrl_info; 3672 struct pqi_event *event; 3673 3674 ctrl_info = container_of(work, struct pqi_ctrl_info, ofa_quiesce_work); 3675 3676 event = &ctrl_info->events[pqi_event_type_to_event_index(PQI_EVENT_TYPE_OFA)]; 3677 3678 pqi_ofa_ctrl_quiesce(ctrl_info); 3679 pqi_acknowledge_event(ctrl_info, event); 3680 pqi_process_soft_reset(ctrl_info); 3681} 3682 3683static bool pqi_ofa_process_event(struct pqi_ctrl_info *ctrl_info, 3684 struct pqi_event *event) 3685{ 3686 bool ack_event; 3687 3688 ack_event = true; 3689 3690 switch (event->event_id) { 3691 case PQI_EVENT_OFA_MEMORY_ALLOCATION: 3692 dev_info(&ctrl_info->pci_dev->dev, 3693 "received Online Firmware Activation memory allocation request\n"); 3694 schedule_work(&ctrl_info->ofa_memory_alloc_work); 3695 break; 3696 case PQI_EVENT_OFA_QUIESCE: 3697 dev_info(&ctrl_info->pci_dev->dev, 3698 "received Online Firmware Activation quiesce request\n"); 3699 schedule_work(&ctrl_info->ofa_quiesce_work); 3700 ack_event = false; 3701 break; 3702 case PQI_EVENT_OFA_CANCELED: 3703 dev_info(&ctrl_info->pci_dev->dev, 3704 "received Online Firmware Activation cancel request: reason: %u\n", 3705 ctrl_info->ofa_cancel_reason); 3706 pqi_ofa_free_host_buffer(ctrl_info); 3707 pqi_ctrl_ofa_done(ctrl_info); 3708 break; 3709 default: 3710 dev_err(&ctrl_info->pci_dev->dev, 3711 "received unknown Online Firmware Activation request: event ID: %u\n", 3712 event->event_id); 3713 break; 3714 } 3715 3716 return ack_event; 3717} 3718 3719static void pqi_mark_volumes_for_rescan(struct pqi_ctrl_info *ctrl_info) 3720{ 3721 unsigned long flags; 3722 struct pqi_scsi_dev *device; 3723 3724 spin_lock_irqsave(&ctrl_info->scsi_device_list_lock, flags); 3725 3726 list_for_each_entry(device, &ctrl_info->scsi_device_list, scsi_device_list_entry) { 3727 if (pqi_is_logical_device(device) && device->devtype == TYPE_DISK) 3728 device->rescan = true; 3729 } 3730 3731 spin_unlock_irqrestore(&ctrl_info->scsi_device_list_lock, flags); 3732} 3733 3734static void pqi_disable_raid_bypass(struct pqi_ctrl_info *ctrl_info) 3735{ 3736 unsigned long flags; 3737 struct pqi_scsi_dev *device; 3738 3739 spin_lock_irqsave(&ctrl_info->scsi_device_list_lock, flags); 3740 3741 list_for_each_entry(device, &ctrl_info->scsi_device_list, scsi_device_list_entry) 3742 if (device->raid_bypass_enabled) 3743 device->raid_bypass_enabled = false; 3744 3745 spin_unlock_irqrestore(&ctrl_info->scsi_device_list_lock, flags); 3746} 3747 3748static void pqi_event_worker(struct work_struct *work) 3749{ 3750 unsigned int i; 3751 bool rescan_needed; 3752 struct pqi_ctrl_info *ctrl_info; 3753 struct pqi_event *event; 3754 bool ack_event; 3755 3756 ctrl_info = container_of(work, struct pqi_ctrl_info, event_work); 3757 3758 pqi_ctrl_busy(ctrl_info); 3759 pqi_wait_if_ctrl_blocked(ctrl_info); 3760 if (pqi_ctrl_offline(ctrl_info)) 3761 goto out; 3762 3763 rescan_needed = false; 3764 event = ctrl_info->events; 3765 for (i = 0; i < PQI_NUM_SUPPORTED_EVENTS; i++) { 3766 if (event->pending) { 3767 event->pending = false; 3768 if (event->event_type == PQI_EVENT_TYPE_OFA) { 3769 ack_event = pqi_ofa_process_event(ctrl_info, event); 3770 } else { 3771 ack_event = true; 3772 rescan_needed = true; 3773 if (event->event_type == PQI_EVENT_TYPE_LOGICAL_DEVICE) 3774 pqi_mark_volumes_for_rescan(ctrl_info); 3775 else if (event->event_type == PQI_EVENT_TYPE_AIO_STATE_CHANGE) 3776 pqi_disable_raid_bypass(ctrl_info); 3777 } 3778 if (ack_event) 3779 pqi_acknowledge_event(ctrl_info, event); 3780 } 3781 event++; 3782 } 3783 3784#define PQI_RESCAN_WORK_FOR_EVENT_DELAY (5 * HZ) 3785 3786 if (rescan_needed) 3787 pqi_schedule_rescan_worker_with_delay(ctrl_info, 3788 PQI_RESCAN_WORK_FOR_EVENT_DELAY); 3789 3790out: 3791 pqi_ctrl_unbusy(ctrl_info); 3792} 3793 3794#define PQI_HEARTBEAT_TIMER_INTERVAL (10 * HZ) 3795 3796static void pqi_heartbeat_timer_handler(struct timer_list *t) 3797{ 3798 int num_interrupts; 3799 u32 heartbeat_count; 3800 struct pqi_ctrl_info *ctrl_info = from_timer(ctrl_info, t, heartbeat_timer); 3801 3802 pqi_check_ctrl_health(ctrl_info); 3803 if (pqi_ctrl_offline(ctrl_info)) 3804 return; 3805 3806 num_interrupts = atomic_read(&ctrl_info->num_interrupts); 3807 heartbeat_count = pqi_read_heartbeat_counter(ctrl_info); 3808 3809 if (num_interrupts == ctrl_info->previous_num_interrupts) { 3810 if (heartbeat_count == ctrl_info->previous_heartbeat_count) { 3811 dev_err(&ctrl_info->pci_dev->dev, 3812 "no heartbeat detected - last heartbeat count: %u\n", 3813 heartbeat_count); 3814 pqi_take_ctrl_offline(ctrl_info, PQI_NO_HEARTBEAT); 3815 return; 3816 } 3817 } else { 3818 ctrl_info->previous_num_interrupts = num_interrupts; 3819 } 3820 3821 ctrl_info->previous_heartbeat_count = heartbeat_count; 3822 mod_timer(&ctrl_info->heartbeat_timer, 3823 jiffies + PQI_HEARTBEAT_TIMER_INTERVAL); 3824} 3825 3826static void pqi_start_heartbeat_timer(struct pqi_ctrl_info *ctrl_info) 3827{ 3828 if (!ctrl_info->heartbeat_counter) 3829 return; 3830 3831 ctrl_info->previous_num_interrupts = 3832 atomic_read(&ctrl_info->num_interrupts); 3833 ctrl_info->previous_heartbeat_count = 3834 pqi_read_heartbeat_counter(ctrl_info); 3835 3836 ctrl_info->heartbeat_timer.expires = 3837 jiffies + PQI_HEARTBEAT_TIMER_INTERVAL; 3838 add_timer(&ctrl_info->heartbeat_timer); 3839} 3840 3841static inline void pqi_stop_heartbeat_timer(struct pqi_ctrl_info *ctrl_info) 3842{ 3843 del_timer_sync(&ctrl_info->heartbeat_timer); 3844} 3845 3846static void pqi_ofa_capture_event_payload(struct pqi_ctrl_info *ctrl_info, 3847 struct pqi_event *event, struct pqi_event_response *response) 3848{ 3849 switch (event->event_id) { 3850 case PQI_EVENT_OFA_MEMORY_ALLOCATION: 3851 ctrl_info->ofa_bytes_requested = 3852 get_unaligned_le32(&response->data.ofa_memory_allocation.bytes_requested); 3853 break; 3854 case PQI_EVENT_OFA_CANCELED: 3855 ctrl_info->ofa_cancel_reason = 3856 get_unaligned_le16(&response->data.ofa_cancelled.reason); 3857 break; 3858 } 3859} 3860 3861static int pqi_process_event_intr(struct pqi_ctrl_info *ctrl_info) 3862{ 3863 int num_events; 3864 pqi_index_t oq_pi; 3865 pqi_index_t oq_ci; 3866 struct pqi_event_queue *event_queue; 3867 struct pqi_event_response *response; 3868 struct pqi_event *event; 3869 int event_index; 3870 3871 event_queue = &ctrl_info->event_queue; 3872 num_events = 0; 3873 oq_ci = event_queue->oq_ci_copy; 3874 3875 while (1) { 3876 oq_pi = readl(event_queue->oq_pi); 3877 if (oq_pi >= PQI_NUM_EVENT_QUEUE_ELEMENTS) { 3878 pqi_invalid_response(ctrl_info, PQI_EVENT_PI_OUT_OF_RANGE); 3879 dev_err(&ctrl_info->pci_dev->dev, 3880 "event interrupt: producer index (%u) out of range (0-%u): consumer index: %u\n", 3881 oq_pi, PQI_NUM_EVENT_QUEUE_ELEMENTS - 1, oq_ci); 3882 return -1; 3883 } 3884 3885 if (oq_pi == oq_ci) 3886 break; 3887 3888 num_events++; 3889 response = event_queue->oq_element_array + (oq_ci * PQI_EVENT_OQ_ELEMENT_LENGTH); 3890 3891 event_index = pqi_event_type_to_event_index(response->event_type); 3892 3893 if (event_index >= 0 && response->request_acknowledge) { 3894 event = &ctrl_info->events[event_index]; 3895 event->pending = true; 3896 event->event_type = response->event_type; 3897 event->event_id = get_unaligned_le16(&response->event_id); 3898 event->additional_event_id = 3899 get_unaligned_le32(&response->additional_event_id); 3900 if (event->event_type == PQI_EVENT_TYPE_OFA) 3901 pqi_ofa_capture_event_payload(ctrl_info, event, response); 3902 } 3903 3904 oq_ci = (oq_ci + 1) % PQI_NUM_EVENT_QUEUE_ELEMENTS; 3905 } 3906 3907 if (num_events) { 3908 event_queue->oq_ci_copy = oq_ci; 3909 writel(oq_ci, event_queue->oq_ci); 3910 schedule_work(&ctrl_info->event_work); 3911 } 3912 3913 return num_events; 3914} 3915 3916#define PQI_LEGACY_INTX_MASK 0x1 3917 3918static inline void pqi_configure_legacy_intx(struct pqi_ctrl_info *ctrl_info, bool enable_intx) 3919{ 3920 u32 intx_mask; 3921 struct pqi_device_registers __iomem *pqi_registers; 3922 volatile void __iomem *register_addr; 3923 3924 pqi_registers = ctrl_info->pqi_registers; 3925 3926 if (enable_intx) 3927 register_addr = &pqi_registers->legacy_intx_mask_clear; 3928 else 3929 register_addr = &pqi_registers->legacy_intx_mask_set; 3930 3931 intx_mask = readl(register_addr); 3932 intx_mask |= PQI_LEGACY_INTX_MASK; 3933 writel(intx_mask, register_addr); 3934} 3935 3936static void pqi_change_irq_mode(struct pqi_ctrl_info *ctrl_info, 3937 enum pqi_irq_mode new_mode) 3938{ 3939 switch (ctrl_info->irq_mode) { 3940 case IRQ_MODE_MSIX: 3941 switch (new_mode) { 3942 case IRQ_MODE_MSIX: 3943 break; 3944 case IRQ_MODE_INTX: 3945 pqi_configure_legacy_intx(ctrl_info, true); 3946 sis_enable_intx(ctrl_info); 3947 break; 3948 case IRQ_MODE_NONE: 3949 break; 3950 } 3951 break; 3952 case IRQ_MODE_INTX: 3953 switch (new_mode) { 3954 case IRQ_MODE_MSIX: 3955 pqi_configure_legacy_intx(ctrl_info, false); 3956 sis_enable_msix(ctrl_info); 3957 break; 3958 case IRQ_MODE_INTX: 3959 break; 3960 case IRQ_MODE_NONE: 3961 pqi_configure_legacy_intx(ctrl_info, false); 3962 break; 3963 } 3964 break; 3965 case IRQ_MODE_NONE: 3966 switch (new_mode) { 3967 case IRQ_MODE_MSIX: 3968 sis_enable_msix(ctrl_info); 3969 break; 3970 case IRQ_MODE_INTX: 3971 pqi_configure_legacy_intx(ctrl_info, true); 3972 sis_enable_intx(ctrl_info); 3973 break; 3974 case IRQ_MODE_NONE: 3975 break; 3976 } 3977 break; 3978 } 3979 3980 ctrl_info->irq_mode = new_mode; 3981} 3982 3983#define PQI_LEGACY_INTX_PENDING 0x1 3984 3985static inline bool pqi_is_valid_irq(struct pqi_ctrl_info *ctrl_info) 3986{ 3987 bool valid_irq; 3988 u32 intx_status; 3989 3990 switch (ctrl_info->irq_mode) { 3991 case IRQ_MODE_MSIX: 3992 valid_irq = true; 3993 break; 3994 case IRQ_MODE_INTX: 3995 intx_status = readl(&ctrl_info->pqi_registers->legacy_intx_status); 3996 if (intx_status & PQI_LEGACY_INTX_PENDING) 3997 valid_irq = true; 3998 else 3999 valid_irq = false; 4000 break; 4001 case IRQ_MODE_NONE: 4002 default: 4003 valid_irq = false; 4004 break; 4005 } 4006 4007 return valid_irq; 4008} 4009 4010static irqreturn_t pqi_irq_handler(int irq, void *data) 4011{ 4012 struct pqi_ctrl_info *ctrl_info; 4013 struct pqi_queue_group *queue_group; 4014 int num_io_responses_handled; 4015 int num_events_handled; 4016 4017 queue_group = data; 4018 ctrl_info = queue_group->ctrl_info; 4019 4020 if (!pqi_is_valid_irq(ctrl_info)) 4021 return IRQ_NONE; 4022 4023 num_io_responses_handled = pqi_process_io_intr(ctrl_info, queue_group); 4024 if (num_io_responses_handled < 0) 4025 goto out; 4026 4027 if (irq == ctrl_info->event_irq) { 4028 num_events_handled = pqi_process_event_intr(ctrl_info); 4029 if (num_events_handled < 0) 4030 goto out; 4031 } else { 4032 num_events_handled = 0; 4033 } 4034 4035 if (num_io_responses_handled + num_events_handled > 0) 4036 atomic_inc(&ctrl_info->num_interrupts); 4037 4038 pqi_start_io(ctrl_info, queue_group, RAID_PATH, NULL); 4039 pqi_start_io(ctrl_info, queue_group, AIO_PATH, NULL); 4040 4041out: 4042 return IRQ_HANDLED; 4043} 4044 4045static int pqi_request_irqs(struct pqi_ctrl_info *ctrl_info) 4046{ 4047 struct pci_dev *pci_dev = ctrl_info->pci_dev; 4048 int i; 4049 int rc; 4050 4051 ctrl_info->event_irq = pci_irq_vector(pci_dev, 0); 4052 4053 for (i = 0; i < ctrl_info->num_msix_vectors_enabled; i++) { 4054 rc = request_irq(pci_irq_vector(pci_dev, i), pqi_irq_handler, 0, 4055 DRIVER_NAME_SHORT, &ctrl_info->queue_groups[i]); 4056 if (rc) { 4057 dev_err(&pci_dev->dev, 4058 "irq %u init failed with error %d\n", 4059 pci_irq_vector(pci_dev, i), rc); 4060 return rc; 4061 } 4062 ctrl_info->num_msix_vectors_initialized++; 4063 } 4064 4065 return 0; 4066} 4067 4068static void pqi_free_irqs(struct pqi_ctrl_info *ctrl_info) 4069{ 4070 int i; 4071 4072 for (i = 0; i < ctrl_info->num_msix_vectors_initialized; i++) 4073 free_irq(pci_irq_vector(ctrl_info->pci_dev, i), 4074 &ctrl_info->queue_groups[i]); 4075 4076 ctrl_info->num_msix_vectors_initialized = 0; 4077} 4078 4079static int pqi_enable_msix_interrupts(struct pqi_ctrl_info *ctrl_info) 4080{ 4081 int num_vectors_enabled; 4082 unsigned int flags = PCI_IRQ_MSIX; 4083 4084 if (!pqi_disable_managed_interrupts) 4085 flags |= PCI_IRQ_AFFINITY; 4086 4087 num_vectors_enabled = pci_alloc_irq_vectors(ctrl_info->pci_dev, 4088 PQI_MIN_MSIX_VECTORS, ctrl_info->num_queue_groups, 4089 flags); 4090 if (num_vectors_enabled < 0) { 4091 dev_err(&ctrl_info->pci_dev->dev, 4092 "MSI-X init failed with error %d\n", 4093 num_vectors_enabled); 4094 return num_vectors_enabled; 4095 } 4096 4097 ctrl_info->num_msix_vectors_enabled = num_vectors_enabled; 4098 ctrl_info->irq_mode = IRQ_MODE_MSIX; 4099 return 0; 4100} 4101 4102static void pqi_disable_msix_interrupts(struct pqi_ctrl_info *ctrl_info) 4103{ 4104 if (ctrl_info->num_msix_vectors_enabled) { 4105 pci_free_irq_vectors(ctrl_info->pci_dev); 4106 ctrl_info->num_msix_vectors_enabled = 0; 4107 } 4108} 4109 4110static int pqi_alloc_operational_queues(struct pqi_ctrl_info *ctrl_info) 4111{ 4112 unsigned int i; 4113 size_t alloc_length; 4114 size_t element_array_length_per_iq; 4115 size_t element_array_length_per_oq; 4116 void *element_array; 4117 void __iomem *next_queue_index; 4118 void *aligned_pointer; 4119 unsigned int num_inbound_queues; 4120 unsigned int num_outbound_queues; 4121 unsigned int num_queue_indexes; 4122 struct pqi_queue_group *queue_group; 4123 4124 element_array_length_per_iq = 4125 PQI_OPERATIONAL_IQ_ELEMENT_LENGTH * 4126 ctrl_info->num_elements_per_iq; 4127 element_array_length_per_oq = 4128 PQI_OPERATIONAL_OQ_ELEMENT_LENGTH * 4129 ctrl_info->num_elements_per_oq; 4130 num_inbound_queues = ctrl_info->num_queue_groups * 2; 4131 num_outbound_queues = ctrl_info->num_queue_groups; 4132 num_queue_indexes = (ctrl_info->num_queue_groups * 3) + 1; 4133 4134 aligned_pointer = NULL; 4135 4136 for (i = 0; i < num_inbound_queues; i++) { 4137 aligned_pointer = PTR_ALIGN(aligned_pointer, 4138 PQI_QUEUE_ELEMENT_ARRAY_ALIGNMENT); 4139 aligned_pointer += element_array_length_per_iq; 4140 } 4141 4142 for (i = 0; i < num_outbound_queues; i++) { 4143 aligned_pointer = PTR_ALIGN(aligned_pointer, 4144 PQI_QUEUE_ELEMENT_ARRAY_ALIGNMENT); 4145 aligned_pointer += element_array_length_per_oq; 4146 } 4147 4148 aligned_pointer = PTR_ALIGN(aligned_pointer, 4149 PQI_QUEUE_ELEMENT_ARRAY_ALIGNMENT); 4150 aligned_pointer += PQI_NUM_EVENT_QUEUE_ELEMENTS * 4151 PQI_EVENT_OQ_ELEMENT_LENGTH; 4152 4153 for (i = 0; i < num_queue_indexes; i++) { 4154 aligned_pointer = PTR_ALIGN(aligned_pointer, 4155 PQI_OPERATIONAL_INDEX_ALIGNMENT); 4156 aligned_pointer += sizeof(pqi_index_t); 4157 } 4158 4159 alloc_length = (size_t)aligned_pointer + 4160 PQI_QUEUE_ELEMENT_ARRAY_ALIGNMENT; 4161 4162 alloc_length += PQI_EXTRA_SGL_MEMORY; 4163 4164 ctrl_info->queue_memory_base = 4165 dma_alloc_coherent(&ctrl_info->pci_dev->dev, alloc_length, 4166 &ctrl_info->queue_memory_base_dma_handle, 4167 GFP_KERNEL); 4168 4169 if (!ctrl_info->queue_memory_base) 4170 return -ENOMEM; 4171 4172 ctrl_info->queue_memory_length = alloc_length; 4173 4174 element_array = PTR_ALIGN(ctrl_info->queue_memory_base, 4175 PQI_QUEUE_ELEMENT_ARRAY_ALIGNMENT); 4176 4177 for (i = 0; i < ctrl_info->num_queue_groups; i++) { 4178 queue_group = &ctrl_info->queue_groups[i]; 4179 queue_group->iq_element_array[RAID_PATH] = element_array; 4180 queue_group->iq_element_array_bus_addr[RAID_PATH] = 4181 ctrl_info->queue_memory_base_dma_handle + 4182 (element_array - ctrl_info->queue_memory_base); 4183 element_array += element_array_length_per_iq; 4184 element_array = PTR_ALIGN(element_array, 4185 PQI_QUEUE_ELEMENT_ARRAY_ALIGNMENT); 4186 queue_group->iq_element_array[AIO_PATH] = element_array; 4187 queue_group->iq_element_array_bus_addr[AIO_PATH] = 4188 ctrl_info->queue_memory_base_dma_handle + 4189 (element_array - ctrl_info->queue_memory_base); 4190 element_array += element_array_length_per_iq; 4191 element_array = PTR_ALIGN(element_array, 4192 PQI_QUEUE_ELEMENT_ARRAY_ALIGNMENT); 4193 } 4194 4195 for (i = 0; i < ctrl_info->num_queue_groups; i++) { 4196 queue_group = &ctrl_info->queue_groups[i]; 4197 queue_group->oq_element_array = element_array; 4198 queue_group->oq_element_array_bus_addr = 4199 ctrl_info->queue_memory_base_dma_handle + 4200 (element_array - ctrl_info->queue_memory_base); 4201 element_array += element_array_length_per_oq; 4202 element_array = PTR_ALIGN(element_array, 4203 PQI_QUEUE_ELEMENT_ARRAY_ALIGNMENT); 4204 } 4205 4206 ctrl_info->event_queue.oq_element_array = element_array; 4207 ctrl_info->event_queue.oq_element_array_bus_addr = 4208 ctrl_info->queue_memory_base_dma_handle + 4209 (element_array - ctrl_info->queue_memory_base); 4210 element_array += PQI_NUM_EVENT_QUEUE_ELEMENTS * 4211 PQI_EVENT_OQ_ELEMENT_LENGTH; 4212 4213 next_queue_index = (void __iomem *)PTR_ALIGN(element_array, 4214 PQI_OPERATIONAL_INDEX_ALIGNMENT); 4215 4216 for (i = 0; i < ctrl_info->num_queue_groups; i++) { 4217 queue_group = &ctrl_info->queue_groups[i]; 4218 queue_group->iq_ci[RAID_PATH] = next_queue_index; 4219 queue_group->iq_ci_bus_addr[RAID_PATH] = 4220 ctrl_info->queue_memory_base_dma_handle + 4221 (next_queue_index - 4222 (void __iomem *)ctrl_info->queue_memory_base); 4223 next_queue_index += sizeof(pqi_index_t); 4224 next_queue_index = PTR_ALIGN(next_queue_index, 4225 PQI_OPERATIONAL_INDEX_ALIGNMENT); 4226 queue_group->iq_ci[AIO_PATH] = next_queue_index; 4227 queue_group->iq_ci_bus_addr[AIO_PATH] = 4228 ctrl_info->queue_memory_base_dma_handle + 4229 (next_queue_index - 4230 (void __iomem *)ctrl_info->queue_memory_base); 4231 next_queue_index += sizeof(pqi_index_t); 4232 next_queue_index = PTR_ALIGN(next_queue_index, 4233 PQI_OPERATIONAL_INDEX_ALIGNMENT); 4234 queue_group->oq_pi = next_queue_index; 4235 queue_group->oq_pi_bus_addr = 4236 ctrl_info->queue_memory_base_dma_handle + 4237 (next_queue_index - 4238 (void __iomem *)ctrl_info->queue_memory_base); 4239 next_queue_index += sizeof(pqi_index_t); 4240 next_queue_index = PTR_ALIGN(next_queue_index, 4241 PQI_OPERATIONAL_INDEX_ALIGNMENT); 4242 } 4243 4244 ctrl_info->event_queue.oq_pi = next_queue_index; 4245 ctrl_info->event_queue.oq_pi_bus_addr = 4246 ctrl_info->queue_memory_base_dma_handle + 4247 (next_queue_index - 4248 (void __iomem *)ctrl_info->queue_memory_base); 4249 4250 return 0; 4251} 4252 4253static void pqi_init_operational_queues(struct pqi_ctrl_info *ctrl_info) 4254{ 4255 unsigned int i; 4256 u16 next_iq_id = PQI_MIN_OPERATIONAL_QUEUE_ID; 4257 u16 next_oq_id = PQI_MIN_OPERATIONAL_QUEUE_ID; 4258 4259 /* 4260 * Initialize the backpointers to the controller structure in 4261 * each operational queue group structure. 4262 */ 4263 for (i = 0; i < ctrl_info->num_queue_groups; i++) 4264 ctrl_info->queue_groups[i].ctrl_info = ctrl_info; 4265 4266 /* 4267 * Assign IDs to all operational queues. Note that the IDs 4268 * assigned to operational IQs are independent of the IDs 4269 * assigned to operational OQs. 4270 */ 4271 ctrl_info->event_queue.oq_id = next_oq_id++; 4272 for (i = 0; i < ctrl_info->num_queue_groups; i++) { 4273 ctrl_info->queue_groups[i].iq_id[RAID_PATH] = next_iq_id++; 4274 ctrl_info->queue_groups[i].iq_id[AIO_PATH] = next_iq_id++; 4275 ctrl_info->queue_groups[i].oq_id = next_oq_id++; 4276 } 4277 4278 /* 4279 * Assign MSI-X table entry indexes to all queues. Note that the 4280 * interrupt for the event queue is shared with the first queue group. 4281 */ 4282 ctrl_info->event_queue.int_msg_num = 0; 4283 for (i = 0; i < ctrl_info->num_queue_groups; i++) 4284 ctrl_info->queue_groups[i].int_msg_num = i; 4285 4286 for (i = 0; i < ctrl_info->num_queue_groups; i++) { 4287 spin_lock_init(&ctrl_info->queue_groups[i].submit_lock[0]); 4288 spin_lock_init(&ctrl_info->queue_groups[i].submit_lock[1]); 4289 INIT_LIST_HEAD(&ctrl_info->queue_groups[i].request_list[0]); 4290 INIT_LIST_HEAD(&ctrl_info->queue_groups[i].request_list[1]); 4291 } 4292} 4293 4294static int pqi_alloc_admin_queues(struct pqi_ctrl_info *ctrl_info) 4295{ 4296 size_t alloc_length; 4297 struct pqi_admin_queues_aligned *admin_queues_aligned; 4298 struct pqi_admin_queues *admin_queues; 4299 4300 alloc_length = sizeof(struct pqi_admin_queues_aligned) + 4301 PQI_QUEUE_ELEMENT_ARRAY_ALIGNMENT; 4302 4303 ctrl_info->admin_queue_memory_base = 4304 dma_alloc_coherent(&ctrl_info->pci_dev->dev, alloc_length, 4305 &ctrl_info->admin_queue_memory_base_dma_handle, 4306 GFP_KERNEL); 4307 4308 if (!ctrl_info->admin_queue_memory_base) 4309 return -ENOMEM; 4310 4311 ctrl_info->admin_queue_memory_length = alloc_length; 4312 4313 admin_queues = &ctrl_info->admin_queues; 4314 admin_queues_aligned = PTR_ALIGN(ctrl_info->admin_queue_memory_base, 4315 PQI_QUEUE_ELEMENT_ARRAY_ALIGNMENT); 4316 admin_queues->iq_element_array = 4317 &admin_queues_aligned->iq_element_array; 4318 admin_queues->oq_element_array = 4319 &admin_queues_aligned->oq_element_array; 4320 admin_queues->iq_ci = 4321 (pqi_index_t __iomem *)&admin_queues_aligned->iq_ci; 4322 admin_queues->oq_pi = 4323 (pqi_index_t __iomem *)&admin_queues_aligned->oq_pi; 4324 4325 admin_queues->iq_element_array_bus_addr = 4326 ctrl_info->admin_queue_memory_base_dma_handle + 4327 (admin_queues->iq_element_array - 4328 ctrl_info->admin_queue_memory_base); 4329 admin_queues->oq_element_array_bus_addr = 4330 ctrl_info->admin_queue_memory_base_dma_handle + 4331 (admin_queues->oq_element_array - 4332 ctrl_info->admin_queue_memory_base); 4333 admin_queues->iq_ci_bus_addr = 4334 ctrl_info->admin_queue_memory_base_dma_handle + 4335 ((void __iomem *)admin_queues->iq_ci - 4336 (void __iomem *)ctrl_info->admin_queue_memory_base); 4337 admin_queues->oq_pi_bus_addr = 4338 ctrl_info->admin_queue_memory_base_dma_handle + 4339 ((void __iomem *)admin_queues->oq_pi - 4340 (void __iomem *)ctrl_info->admin_queue_memory_base); 4341 4342 return 0; 4343} 4344 4345#define PQI_ADMIN_QUEUE_CREATE_TIMEOUT_JIFFIES HZ 4346#define PQI_ADMIN_QUEUE_CREATE_POLL_INTERVAL_MSECS 1 4347 4348static int pqi_create_admin_queues(struct pqi_ctrl_info *ctrl_info) 4349{ 4350 struct pqi_device_registers __iomem *pqi_registers; 4351 struct pqi_admin_queues *admin_queues; 4352 unsigned long timeout; 4353 u8 status; 4354 u32 reg; 4355 4356 pqi_registers = ctrl_info->pqi_registers; 4357 admin_queues = &ctrl_info->admin_queues; 4358 4359 writeq((u64)admin_queues->iq_element_array_bus_addr, 4360 &pqi_registers->admin_iq_element_array_addr); 4361 writeq((u64)admin_queues->oq_element_array_bus_addr, 4362 &pqi_registers->admin_oq_element_array_addr); 4363 writeq((u64)admin_queues->iq_ci_bus_addr, 4364 &pqi_registers->admin_iq_ci_addr); 4365 writeq((u64)admin_queues->oq_pi_bus_addr, 4366 &pqi_registers->admin_oq_pi_addr); 4367 4368 reg = PQI_ADMIN_IQ_NUM_ELEMENTS | 4369 (PQI_ADMIN_OQ_NUM_ELEMENTS << 8) | 4370 (admin_queues->int_msg_num << 16); 4371 writel(reg, &pqi_registers->admin_iq_num_elements); 4372 4373 writel(PQI_CREATE_ADMIN_QUEUE_PAIR, 4374 &pqi_registers->function_and_status_code); 4375 4376 timeout = PQI_ADMIN_QUEUE_CREATE_TIMEOUT_JIFFIES + jiffies; 4377 while (1) { 4378 msleep(PQI_ADMIN_QUEUE_CREATE_POLL_INTERVAL_MSECS); 4379 status = readb(&pqi_registers->function_and_status_code); 4380 if (status == PQI_STATUS_IDLE) 4381 break; 4382 if (time_after(jiffies, timeout)) 4383 return -ETIMEDOUT; 4384 } 4385 4386 /* 4387 * The offset registers are not initialized to the correct 4388 * offsets until *after* the create admin queue pair command 4389 * completes successfully. 4390 */ 4391 admin_queues->iq_pi = ctrl_info->iomem_base + 4392 PQI_DEVICE_REGISTERS_OFFSET + 4393 readq(&pqi_registers->admin_iq_pi_offset); 4394 admin_queues->oq_ci = ctrl_info->iomem_base + 4395 PQI_DEVICE_REGISTERS_OFFSET + 4396 readq(&pqi_registers->admin_oq_ci_offset); 4397 4398 return 0; 4399} 4400 4401static void pqi_submit_admin_request(struct pqi_ctrl_info *ctrl_info, 4402 struct pqi_general_admin_request *request) 4403{ 4404 struct pqi_admin_queues *admin_queues; 4405 void *next_element; 4406 pqi_index_t iq_pi; 4407 4408 admin_queues = &ctrl_info->admin_queues; 4409 iq_pi = admin_queues->iq_pi_copy; 4410 4411 next_element = admin_queues->iq_element_array + 4412 (iq_pi * PQI_ADMIN_IQ_ELEMENT_LENGTH); 4413 4414 memcpy(next_element, request, sizeof(*request)); 4415 4416 iq_pi = (iq_pi + 1) % PQI_ADMIN_IQ_NUM_ELEMENTS; 4417 admin_queues->iq_pi_copy = iq_pi; 4418 4419 /* 4420 * This write notifies the controller that an IU is available to be 4421 * processed. 4422 */ 4423 writel(iq_pi, admin_queues->iq_pi); 4424} 4425 4426#define PQI_ADMIN_REQUEST_TIMEOUT_SECS 60 4427 4428static int pqi_poll_for_admin_response(struct pqi_ctrl_info *ctrl_info, 4429 struct pqi_general_admin_response *response) 4430{ 4431 struct pqi_admin_queues *admin_queues; 4432 pqi_index_t oq_pi; 4433 pqi_index_t oq_ci; 4434 unsigned long timeout; 4435 4436 admin_queues = &ctrl_info->admin_queues; 4437 oq_ci = admin_queues->oq_ci_copy; 4438 4439 timeout = (PQI_ADMIN_REQUEST_TIMEOUT_SECS * HZ) + jiffies; 4440 4441 while (1) { 4442 oq_pi = readl(admin_queues->oq_pi); 4443 if (oq_pi != oq_ci) 4444 break; 4445 if (time_after(jiffies, timeout)) { 4446 dev_err(&ctrl_info->pci_dev->dev, 4447 "timed out waiting for admin response\n"); 4448 return -ETIMEDOUT; 4449 } 4450 if (!sis_is_firmware_running(ctrl_info)) 4451 return -ENXIO; 4452 usleep_range(1000, 2000); 4453 } 4454 4455 memcpy(response, admin_queues->oq_element_array + 4456 (oq_ci * PQI_ADMIN_OQ_ELEMENT_LENGTH), sizeof(*response)); 4457 4458 oq_ci = (oq_ci + 1) % PQI_ADMIN_OQ_NUM_ELEMENTS; 4459 admin_queues->oq_ci_copy = oq_ci; 4460 writel(oq_ci, admin_queues->oq_ci); 4461 4462 return 0; 4463} 4464 4465static void pqi_start_io(struct pqi_ctrl_info *ctrl_info, 4466 struct pqi_queue_group *queue_group, enum pqi_io_path path, 4467 struct pqi_io_request *io_request) 4468{ 4469 struct pqi_io_request *next; 4470 void *next_element; 4471 pqi_index_t iq_pi; 4472 pqi_index_t iq_ci; 4473 size_t iu_length; 4474 unsigned long flags; 4475 unsigned int num_elements_needed; 4476 unsigned int num_elements_to_end_of_queue; 4477 size_t copy_count; 4478 struct pqi_iu_header *request; 4479 4480 spin_lock_irqsave(&queue_group->submit_lock[path], flags); 4481 4482 if (io_request) { 4483 io_request->queue_group = queue_group; 4484 list_add_tail(&io_request->request_list_entry, 4485 &queue_group->request_list[path]); 4486 } 4487 4488 iq_pi = queue_group->iq_pi_copy[path]; 4489 4490 list_for_each_entry_safe(io_request, next, 4491 &queue_group->request_list[path], request_list_entry) { 4492 4493 request = io_request->iu; 4494 4495 iu_length = get_unaligned_le16(&request->iu_length) + 4496 PQI_REQUEST_HEADER_LENGTH; 4497 num_elements_needed = 4498 DIV_ROUND_UP(iu_length, 4499 PQI_OPERATIONAL_IQ_ELEMENT_LENGTH); 4500 4501 iq_ci = readl(queue_group->iq_ci[path]); 4502 4503 if (num_elements_needed > pqi_num_elements_free(iq_pi, iq_ci, 4504 ctrl_info->num_elements_per_iq)) 4505 break; 4506 4507 put_unaligned_le16(queue_group->oq_id, 4508 &request->response_queue_id); 4509 4510 next_element = queue_group->iq_element_array[path] + 4511 (iq_pi * PQI_OPERATIONAL_IQ_ELEMENT_LENGTH); 4512 4513 num_elements_to_end_of_queue = 4514 ctrl_info->num_elements_per_iq - iq_pi; 4515 4516 if (num_elements_needed <= num_elements_to_end_of_queue) { 4517 memcpy(next_element, request, iu_length); 4518 } else { 4519 copy_count = num_elements_to_end_of_queue * 4520 PQI_OPERATIONAL_IQ_ELEMENT_LENGTH; 4521 memcpy(next_element, request, copy_count); 4522 memcpy(queue_group->iq_element_array[path], 4523 (u8 *)request + copy_count, 4524 iu_length - copy_count); 4525 } 4526 4527 iq_pi = (iq_pi + num_elements_needed) % 4528 ctrl_info->num_elements_per_iq; 4529 4530 list_del(&io_request->request_list_entry); 4531 } 4532 4533 if (iq_pi != queue_group->iq_pi_copy[path]) { 4534 queue_group->iq_pi_copy[path] = iq_pi; 4535 /* 4536 * This write notifies the controller that one or more IUs are 4537 * available to be processed. 4538 */ 4539 writel(iq_pi, queue_group->iq_pi[path]); 4540 } 4541 4542 spin_unlock_irqrestore(&queue_group->submit_lock[path], flags); 4543} 4544 4545#define PQI_WAIT_FOR_COMPLETION_IO_TIMEOUT_SECS 10 4546 4547static int pqi_wait_for_completion_io(struct pqi_ctrl_info *ctrl_info, 4548 struct completion *wait) 4549{ 4550 int rc; 4551 4552 while (1) { 4553 if (wait_for_completion_io_timeout(wait, 4554 PQI_WAIT_FOR_COMPLETION_IO_TIMEOUT_SECS * HZ)) { 4555 rc = 0; 4556 break; 4557 } 4558 4559 pqi_check_ctrl_health(ctrl_info); 4560 if (pqi_ctrl_offline(ctrl_info)) { 4561 rc = -ENXIO; 4562 break; 4563 } 4564 } 4565 4566 return rc; 4567} 4568 4569static void pqi_raid_synchronous_complete(struct pqi_io_request *io_request, 4570 void *context) 4571{ 4572 struct completion *waiting = context; 4573 4574 complete(waiting); 4575} 4576 4577static int pqi_process_raid_io_error_synchronous( 4578 struct pqi_raid_error_info *error_info) 4579{ 4580 int rc = -EIO; 4581 4582 switch (error_info->data_out_result) { 4583 case PQI_DATA_IN_OUT_GOOD: 4584 if (error_info->status == SAM_STAT_GOOD) 4585 rc = 0; 4586 break; 4587 case PQI_DATA_IN_OUT_UNDERFLOW: 4588 if (error_info->status == SAM_STAT_GOOD || 4589 error_info->status == SAM_STAT_CHECK_CONDITION) 4590 rc = 0; 4591 break; 4592 case PQI_DATA_IN_OUT_ABORTED: 4593 rc = PQI_CMD_STATUS_ABORTED; 4594 break; 4595 } 4596 4597 return rc; 4598} 4599 4600static inline bool pqi_is_blockable_request(struct pqi_iu_header *request) 4601{ 4602 return (request->driver_flags & PQI_DRIVER_NONBLOCKABLE_REQUEST) == 0; 4603} 4604 4605static int pqi_submit_raid_request_synchronous(struct pqi_ctrl_info *ctrl_info, 4606 struct pqi_iu_header *request, unsigned int flags, 4607 struct pqi_raid_error_info *error_info) 4608{ 4609 int rc = 0; 4610 struct pqi_io_request *io_request; 4611 size_t iu_length; 4612 DECLARE_COMPLETION_ONSTACK(wait); 4613 4614 if (flags & PQI_SYNC_FLAGS_INTERRUPTABLE) { 4615 if (down_interruptible(&ctrl_info->sync_request_sem)) 4616 return -ERESTARTSYS; 4617 } else { 4618 down(&ctrl_info->sync_request_sem); 4619 } 4620 4621 pqi_ctrl_busy(ctrl_info); 4622 /* 4623 * Wait for other admin queue updates such as; 4624 * config table changes, OFA memory updates, ... 4625 */ 4626 if (pqi_is_blockable_request(request)) 4627 pqi_wait_if_ctrl_blocked(ctrl_info); 4628 4629 if (pqi_ctrl_offline(ctrl_info)) { 4630 rc = -ENXIO; 4631 goto out; 4632 } 4633 4634 io_request = pqi_alloc_io_request(ctrl_info, NULL); 4635 4636 put_unaligned_le16(io_request->index, 4637 &(((struct pqi_raid_path_request *)request)->request_id)); 4638 4639 if (request->iu_type == PQI_REQUEST_IU_RAID_PATH_IO) 4640 ((struct pqi_raid_path_request *)request)->error_index = 4641 ((struct pqi_raid_path_request *)request)->request_id; 4642 4643 iu_length = get_unaligned_le16(&request->iu_length) + 4644 PQI_REQUEST_HEADER_LENGTH; 4645 memcpy(io_request->iu, request, iu_length); 4646 4647 io_request->io_complete_callback = pqi_raid_synchronous_complete; 4648 io_request->context = &wait; 4649 4650 pqi_start_io(ctrl_info, &ctrl_info->queue_groups[PQI_DEFAULT_QUEUE_GROUP], RAID_PATH, 4651 io_request); 4652 4653 pqi_wait_for_completion_io(ctrl_info, &wait); 4654 4655 if (error_info) { 4656 if (io_request->error_info) 4657 memcpy(error_info, io_request->error_info, sizeof(*error_info)); 4658 else 4659 memset(error_info, 0, sizeof(*error_info)); 4660 } else if (rc == 0 && io_request->error_info) { 4661 rc = pqi_process_raid_io_error_synchronous(io_request->error_info); 4662 } 4663 4664 pqi_free_io_request(io_request); 4665 4666out: 4667 pqi_ctrl_unbusy(ctrl_info); 4668 up(&ctrl_info->sync_request_sem); 4669 4670 return rc; 4671} 4672 4673static int pqi_validate_admin_response( 4674 struct pqi_general_admin_response *response, u8 expected_function_code) 4675{ 4676 if (response->header.iu_type != PQI_RESPONSE_IU_GENERAL_ADMIN) 4677 return -EINVAL; 4678 4679 if (get_unaligned_le16(&response->header.iu_length) != 4680 PQI_GENERAL_ADMIN_IU_LENGTH) 4681 return -EINVAL; 4682 4683 if (response->function_code != expected_function_code) 4684 return -EINVAL; 4685 4686 if (response->status != PQI_GENERAL_ADMIN_STATUS_SUCCESS) 4687 return -EINVAL; 4688 4689 return 0; 4690} 4691 4692static int pqi_submit_admin_request_synchronous( 4693 struct pqi_ctrl_info *ctrl_info, 4694 struct pqi_general_admin_request *request, 4695 struct pqi_general_admin_response *response) 4696{ 4697 int rc; 4698 4699 pqi_submit_admin_request(ctrl_info, request); 4700 4701 rc = pqi_poll_for_admin_response(ctrl_info, response); 4702 4703 if (rc == 0) 4704 rc = pqi_validate_admin_response(response, request->function_code); 4705 4706 return rc; 4707} 4708 4709static int pqi_report_device_capability(struct pqi_ctrl_info *ctrl_info) 4710{ 4711 int rc; 4712 struct pqi_general_admin_request request; 4713 struct pqi_general_admin_response response; 4714 struct pqi_device_capability *capability; 4715 struct pqi_iu_layer_descriptor *sop_iu_layer_descriptor; 4716 4717 capability = kmalloc(sizeof(*capability), GFP_KERNEL); 4718 if (!capability) 4719 return -ENOMEM; 4720 4721 memset(&request, 0, sizeof(request)); 4722 4723 request.header.iu_type = PQI_REQUEST_IU_GENERAL_ADMIN; 4724 put_unaligned_le16(PQI_GENERAL_ADMIN_IU_LENGTH, 4725 &request.header.iu_length); 4726 request.function_code = 4727 PQI_GENERAL_ADMIN_FUNCTION_REPORT_DEVICE_CAPABILITY; 4728 put_unaligned_le32(sizeof(*capability), 4729 &request.data.report_device_capability.buffer_length); 4730 4731 rc = pqi_map_single(ctrl_info->pci_dev, 4732 &request.data.report_device_capability.sg_descriptor, 4733 capability, sizeof(*capability), 4734 DMA_FROM_DEVICE); 4735 if (rc) 4736 goto out; 4737 4738 rc = pqi_submit_admin_request_synchronous(ctrl_info, &request, &response); 4739 4740 pqi_pci_unmap(ctrl_info->pci_dev, 4741 &request.data.report_device_capability.sg_descriptor, 1, 4742 DMA_FROM_DEVICE); 4743 4744 if (rc) 4745 goto out; 4746 4747 if (response.status != PQI_GENERAL_ADMIN_STATUS_SUCCESS) { 4748 rc = -EIO; 4749 goto out; 4750 } 4751 4752 ctrl_info->max_inbound_queues = 4753 get_unaligned_le16(&capability->max_inbound_queues); 4754 ctrl_info->max_elements_per_iq = 4755 get_unaligned_le16(&capability->max_elements_per_iq); 4756 ctrl_info->max_iq_element_length = 4757 get_unaligned_le16(&capability->max_iq_element_length) 4758 * 16; 4759 ctrl_info->max_outbound_queues = 4760 get_unaligned_le16(&capability->max_outbound_queues); 4761 ctrl_info->max_elements_per_oq = 4762 get_unaligned_le16(&capability->max_elements_per_oq); 4763 ctrl_info->max_oq_element_length = 4764 get_unaligned_le16(&capability->max_oq_element_length) 4765 * 16; 4766 4767 sop_iu_layer_descriptor = 4768 &capability->iu_layer_descriptors[PQI_PROTOCOL_SOP]; 4769 4770 ctrl_info->max_inbound_iu_length_per_firmware = 4771 get_unaligned_le16( 4772 &sop_iu_layer_descriptor->max_inbound_iu_length); 4773 ctrl_info->inbound_spanning_supported = 4774 sop_iu_layer_descriptor->inbound_spanning_supported; 4775 ctrl_info->outbound_spanning_supported = 4776 sop_iu_layer_descriptor->outbound_spanning_supported; 4777 4778out: 4779 kfree(capability); 4780 4781 return rc; 4782} 4783 4784static int pqi_validate_device_capability(struct pqi_ctrl_info *ctrl_info) 4785{ 4786 if (ctrl_info->max_iq_element_length < 4787 PQI_OPERATIONAL_IQ_ELEMENT_LENGTH) { 4788 dev_err(&ctrl_info->pci_dev->dev, 4789 "max. inbound queue element length of %d is less than the required length of %d\n", 4790 ctrl_info->max_iq_element_length, 4791 PQI_OPERATIONAL_IQ_ELEMENT_LENGTH); 4792 return -EINVAL; 4793 } 4794 4795 if (ctrl_info->max_oq_element_length < 4796 PQI_OPERATIONAL_OQ_ELEMENT_LENGTH) { 4797 dev_err(&ctrl_info->pci_dev->dev, 4798 "max. outbound queue element length of %d is less than the required length of %d\n", 4799 ctrl_info->max_oq_element_length, 4800 PQI_OPERATIONAL_OQ_ELEMENT_LENGTH); 4801 return -EINVAL; 4802 } 4803 4804 if (ctrl_info->max_inbound_iu_length_per_firmware < 4805 PQI_OPERATIONAL_IQ_ELEMENT_LENGTH) { 4806 dev_err(&ctrl_info->pci_dev->dev, 4807 "max. inbound IU length of %u is less than the min. required length of %d\n", 4808 ctrl_info->max_inbound_iu_length_per_firmware, 4809 PQI_OPERATIONAL_IQ_ELEMENT_LENGTH); 4810 return -EINVAL; 4811 } 4812 4813 if (!ctrl_info->inbound_spanning_supported) { 4814 dev_err(&ctrl_info->pci_dev->dev, 4815 "the controller does not support inbound spanning\n"); 4816 return -EINVAL; 4817 } 4818 4819 if (ctrl_info->outbound_spanning_supported) { 4820 dev_err(&ctrl_info->pci_dev->dev, 4821 "the controller supports outbound spanning but this driver does not\n"); 4822 return -EINVAL; 4823 } 4824 4825 return 0; 4826} 4827 4828static int pqi_create_event_queue(struct pqi_ctrl_info *ctrl_info) 4829{ 4830 int rc; 4831 struct pqi_event_queue *event_queue; 4832 struct pqi_general_admin_request request; 4833 struct pqi_general_admin_response response; 4834 4835 event_queue = &ctrl_info->event_queue; 4836 4837 /* 4838 * Create OQ (Outbound Queue - device to host queue) to dedicate 4839 * to events. 4840 */ 4841 memset(&request, 0, sizeof(request)); 4842 request.header.iu_type = PQI_REQUEST_IU_GENERAL_ADMIN; 4843 put_unaligned_le16(PQI_GENERAL_ADMIN_IU_LENGTH, 4844 &request.header.iu_length); 4845 request.function_code = PQI_GENERAL_ADMIN_FUNCTION_CREATE_OQ; 4846 put_unaligned_le16(event_queue->oq_id, 4847 &request.data.create_operational_oq.queue_id); 4848 put_unaligned_le64((u64)event_queue->oq_element_array_bus_addr, 4849 &request.data.create_operational_oq.element_array_addr); 4850 put_unaligned_le64((u64)event_queue->oq_pi_bus_addr, 4851 &request.data.create_operational_oq.pi_addr); 4852 put_unaligned_le16(PQI_NUM_EVENT_QUEUE_ELEMENTS, 4853 &request.data.create_operational_oq.num_elements); 4854 put_unaligned_le16(PQI_EVENT_OQ_ELEMENT_LENGTH / 16, 4855 &request.data.create_operational_oq.element_length); 4856 request.data.create_operational_oq.queue_protocol = PQI_PROTOCOL_SOP; 4857 put_unaligned_le16(event_queue->int_msg_num, 4858 &request.data.create_operational_oq.int_msg_num); 4859 4860 rc = pqi_submit_admin_request_synchronous(ctrl_info, &request, 4861 &response); 4862 if (rc) 4863 return rc; 4864 4865 event_queue->oq_ci = ctrl_info->iomem_base + 4866 PQI_DEVICE_REGISTERS_OFFSET + 4867 get_unaligned_le64( 4868 &response.data.create_operational_oq.oq_ci_offset); 4869 4870 return 0; 4871} 4872 4873static int pqi_create_queue_group(struct pqi_ctrl_info *ctrl_info, 4874 unsigned int group_number) 4875{ 4876 int rc; 4877 struct pqi_queue_group *queue_group; 4878 struct pqi_general_admin_request request; 4879 struct pqi_general_admin_response response; 4880 4881 queue_group = &ctrl_info->queue_groups[group_number]; 4882 4883 /* 4884 * Create IQ (Inbound Queue - host to device queue) for 4885 * RAID path. 4886 */ 4887 memset(&request, 0, sizeof(request)); 4888 request.header.iu_type = PQI_REQUEST_IU_GENERAL_ADMIN; 4889 put_unaligned_le16(PQI_GENERAL_ADMIN_IU_LENGTH, 4890 &request.header.iu_length); 4891 request.function_code = PQI_GENERAL_ADMIN_FUNCTION_CREATE_IQ; 4892 put_unaligned_le16(queue_group->iq_id[RAID_PATH], 4893 &request.data.create_operational_iq.queue_id); 4894 put_unaligned_le64( 4895 (u64)queue_group->iq_element_array_bus_addr[RAID_PATH], 4896 &request.data.create_operational_iq.element_array_addr); 4897 put_unaligned_le64((u64)queue_group->iq_ci_bus_addr[RAID_PATH], 4898 &request.data.create_operational_iq.ci_addr); 4899 put_unaligned_le16(ctrl_info->num_elements_per_iq, 4900 &request.data.create_operational_iq.num_elements); 4901 put_unaligned_le16(PQI_OPERATIONAL_IQ_ELEMENT_LENGTH / 16, 4902 &request.data.create_operational_iq.element_length); 4903 request.data.create_operational_iq.queue_protocol = PQI_PROTOCOL_SOP; 4904 4905 rc = pqi_submit_admin_request_synchronous(ctrl_info, &request, 4906 &response); 4907 if (rc) { 4908 dev_err(&ctrl_info->pci_dev->dev, 4909 "error creating inbound RAID queue\n"); 4910 return rc; 4911 } 4912 4913 queue_group->iq_pi[RAID_PATH] = ctrl_info->iomem_base + 4914 PQI_DEVICE_REGISTERS_OFFSET + 4915 get_unaligned_le64( 4916 &response.data.create_operational_iq.iq_pi_offset); 4917 4918 /* 4919 * Create IQ (Inbound Queue - host to device queue) for 4920 * Advanced I/O (AIO) path. 4921 */ 4922 memset(&request, 0, sizeof(request)); 4923 request.header.iu_type = PQI_REQUEST_IU_GENERAL_ADMIN; 4924 put_unaligned_le16(PQI_GENERAL_ADMIN_IU_LENGTH, 4925 &request.header.iu_length); 4926 request.function_code = PQI_GENERAL_ADMIN_FUNCTION_CREATE_IQ; 4927 put_unaligned_le16(queue_group->iq_id[AIO_PATH], 4928 &request.data.create_operational_iq.queue_id); 4929 put_unaligned_le64((u64)queue_group-> 4930 iq_element_array_bus_addr[AIO_PATH], 4931 &request.data.create_operational_iq.element_array_addr); 4932 put_unaligned_le64((u64)queue_group->iq_ci_bus_addr[AIO_PATH], 4933 &request.data.create_operational_iq.ci_addr); 4934 put_unaligned_le16(ctrl_info->num_elements_per_iq, 4935 &request.data.create_operational_iq.num_elements); 4936 put_unaligned_le16(PQI_OPERATIONAL_IQ_ELEMENT_LENGTH / 16, 4937 &request.data.create_operational_iq.element_length); 4938 request.data.create_operational_iq.queue_protocol = PQI_PROTOCOL_SOP; 4939 4940 rc = pqi_submit_admin_request_synchronous(ctrl_info, &request, 4941 &response); 4942 if (rc) { 4943 dev_err(&ctrl_info->pci_dev->dev, 4944 "error creating inbound AIO queue\n"); 4945 return rc; 4946 } 4947 4948 queue_group->iq_pi[AIO_PATH] = ctrl_info->iomem_base + 4949 PQI_DEVICE_REGISTERS_OFFSET + 4950 get_unaligned_le64( 4951 &response.data.create_operational_iq.iq_pi_offset); 4952 4953 /* 4954 * Designate the 2nd IQ as the AIO path. By default, all IQs are 4955 * assumed to be for RAID path I/O unless we change the queue's 4956 * property. 4957 */ 4958 memset(&request, 0, sizeof(request)); 4959 request.header.iu_type = PQI_REQUEST_IU_GENERAL_ADMIN; 4960 put_unaligned_le16(PQI_GENERAL_ADMIN_IU_LENGTH, 4961 &request.header.iu_length); 4962 request.function_code = PQI_GENERAL_ADMIN_FUNCTION_CHANGE_IQ_PROPERTY; 4963 put_unaligned_le16(queue_group->iq_id[AIO_PATH], 4964 &request.data.change_operational_iq_properties.queue_id); 4965 put_unaligned_le32(PQI_IQ_PROPERTY_IS_AIO_QUEUE, 4966 &request.data.change_operational_iq_properties.vendor_specific); 4967 4968 rc = pqi_submit_admin_request_synchronous(ctrl_info, &request, 4969 &response); 4970 if (rc) { 4971 dev_err(&ctrl_info->pci_dev->dev, 4972 "error changing queue property\n"); 4973 return rc; 4974 } 4975 4976 /* 4977 * Create OQ (Outbound Queue - device to host queue). 4978 */ 4979 memset(&request, 0, sizeof(request)); 4980 request.header.iu_type = PQI_REQUEST_IU_GENERAL_ADMIN; 4981 put_unaligned_le16(PQI_GENERAL_ADMIN_IU_LENGTH, 4982 &request.header.iu_length); 4983 request.function_code = PQI_GENERAL_ADMIN_FUNCTION_CREATE_OQ; 4984 put_unaligned_le16(queue_group->oq_id, 4985 &request.data.create_operational_oq.queue_id); 4986 put_unaligned_le64((u64)queue_group->oq_element_array_bus_addr, 4987 &request.data.create_operational_oq.element_array_addr); 4988 put_unaligned_le64((u64)queue_group->oq_pi_bus_addr, 4989 &request.data.create_operational_oq.pi_addr); 4990 put_unaligned_le16(ctrl_info->num_elements_per_oq, 4991 &request.data.create_operational_oq.num_elements); 4992 put_unaligned_le16(PQI_OPERATIONAL_OQ_ELEMENT_LENGTH / 16, 4993 &request.data.create_operational_oq.element_length); 4994 request.data.create_operational_oq.queue_protocol = PQI_PROTOCOL_SOP; 4995 put_unaligned_le16(queue_group->int_msg_num, 4996 &request.data.create_operational_oq.int_msg_num); 4997 4998 rc = pqi_submit_admin_request_synchronous(ctrl_info, &request, 4999 &response); 5000 if (rc) { 5001 dev_err(&ctrl_info->pci_dev->dev, 5002 "error creating outbound queue\n"); 5003 return rc; 5004 } 5005 5006 queue_group->oq_ci = ctrl_info->iomem_base + 5007 PQI_DEVICE_REGISTERS_OFFSET + 5008 get_unaligned_le64( 5009 &response.data.create_operational_oq.oq_ci_offset); 5010 5011 return 0; 5012} 5013 5014static int pqi_create_queues(struct pqi_ctrl_info *ctrl_info) 5015{ 5016 int rc; 5017 unsigned int i; 5018 5019 rc = pqi_create_event_queue(ctrl_info); 5020 if (rc) { 5021 dev_err(&ctrl_info->pci_dev->dev, 5022 "error creating event queue\n"); 5023 return rc; 5024 } 5025 5026 for (i = 0; i < ctrl_info->num_queue_groups; i++) { 5027 rc = pqi_create_queue_group(ctrl_info, i); 5028 if (rc) { 5029 dev_err(&ctrl_info->pci_dev->dev, 5030 "error creating queue group number %u/%u\n", 5031 i, ctrl_info->num_queue_groups); 5032 return rc; 5033 } 5034 } 5035 5036 return 0; 5037} 5038 5039#define PQI_REPORT_EVENT_CONFIG_BUFFER_LENGTH \ 5040 struct_size_t(struct pqi_event_config, descriptors, PQI_MAX_EVENT_DESCRIPTORS) 5041 5042static int pqi_configure_events(struct pqi_ctrl_info *ctrl_info, 5043 bool enable_events) 5044{ 5045 int rc; 5046 unsigned int i; 5047 struct pqi_event_config *event_config; 5048 struct pqi_event_descriptor *event_descriptor; 5049 struct pqi_general_management_request request; 5050 5051 event_config = kmalloc(PQI_REPORT_EVENT_CONFIG_BUFFER_LENGTH, 5052 GFP_KERNEL); 5053 if (!event_config) 5054 return -ENOMEM; 5055 5056 memset(&request, 0, sizeof(request)); 5057 5058 request.header.iu_type = PQI_REQUEST_IU_REPORT_VENDOR_EVENT_CONFIG; 5059 put_unaligned_le16(offsetof(struct pqi_general_management_request, 5060 data.report_event_configuration.sg_descriptors[1]) - 5061 PQI_REQUEST_HEADER_LENGTH, &request.header.iu_length); 5062 put_unaligned_le32(PQI_REPORT_EVENT_CONFIG_BUFFER_LENGTH, 5063 &request.data.report_event_configuration.buffer_length); 5064 5065 rc = pqi_map_single(ctrl_info->pci_dev, 5066 request.data.report_event_configuration.sg_descriptors, 5067 event_config, PQI_REPORT_EVENT_CONFIG_BUFFER_LENGTH, 5068 DMA_FROM_DEVICE); 5069 if (rc) 5070 goto out; 5071 5072 rc = pqi_submit_raid_request_synchronous(ctrl_info, &request.header, 0, NULL); 5073 5074 pqi_pci_unmap(ctrl_info->pci_dev, 5075 request.data.report_event_configuration.sg_descriptors, 1, 5076 DMA_FROM_DEVICE); 5077 5078 if (rc) 5079 goto out; 5080 5081 for (i = 0; i < event_config->num_event_descriptors; i++) { 5082 event_descriptor = &event_config->descriptors[i]; 5083 if (enable_events && 5084 pqi_is_supported_event(event_descriptor->event_type)) 5085 put_unaligned_le16(ctrl_info->event_queue.oq_id, 5086 &event_descriptor->oq_id); 5087 else 5088 put_unaligned_le16(0, &event_descriptor->oq_id); 5089 } 5090 5091 memset(&request, 0, sizeof(request)); 5092 5093 request.header.iu_type = PQI_REQUEST_IU_SET_VENDOR_EVENT_CONFIG; 5094 put_unaligned_le16(offsetof(struct pqi_general_management_request, 5095 data.report_event_configuration.sg_descriptors[1]) - 5096 PQI_REQUEST_HEADER_LENGTH, &request.header.iu_length); 5097 put_unaligned_le32(PQI_REPORT_EVENT_CONFIG_BUFFER_LENGTH, 5098 &request.data.report_event_configuration.buffer_length); 5099 5100 rc = pqi_map_single(ctrl_info->pci_dev, 5101 request.data.report_event_configuration.sg_descriptors, 5102 event_config, PQI_REPORT_EVENT_CONFIG_BUFFER_LENGTH, 5103 DMA_TO_DEVICE); 5104 if (rc) 5105 goto out; 5106 5107 rc = pqi_submit_raid_request_synchronous(ctrl_info, &request.header, 0, NULL); 5108 5109 pqi_pci_unmap(ctrl_info->pci_dev, 5110 request.data.report_event_configuration.sg_descriptors, 1, 5111 DMA_TO_DEVICE); 5112 5113out: 5114 kfree(event_config); 5115 5116 return rc; 5117} 5118 5119static inline int pqi_enable_events(struct pqi_ctrl_info *ctrl_info) 5120{ 5121 return pqi_configure_events(ctrl_info, true); 5122} 5123 5124static void pqi_free_all_io_requests(struct pqi_ctrl_info *ctrl_info) 5125{ 5126 unsigned int i; 5127 struct device *dev; 5128 size_t sg_chain_buffer_length; 5129 struct pqi_io_request *io_request; 5130 5131 if (!ctrl_info->io_request_pool) 5132 return; 5133 5134 dev = &ctrl_info->pci_dev->dev; 5135 sg_chain_buffer_length = ctrl_info->sg_chain_buffer_length; 5136 io_request = ctrl_info->io_request_pool; 5137 5138 for (i = 0; i < ctrl_info->max_io_slots; i++) { 5139 kfree(io_request->iu); 5140 if (!io_request->sg_chain_buffer) 5141 break; 5142 dma_free_coherent(dev, sg_chain_buffer_length, 5143 io_request->sg_chain_buffer, 5144 io_request->sg_chain_buffer_dma_handle); 5145 io_request++; 5146 } 5147 5148 kfree(ctrl_info->io_request_pool); 5149 ctrl_info->io_request_pool = NULL; 5150} 5151 5152static inline int pqi_alloc_error_buffer(struct pqi_ctrl_info *ctrl_info) 5153{ 5154 ctrl_info->error_buffer = dma_alloc_coherent(&ctrl_info->pci_dev->dev, 5155 ctrl_info->error_buffer_length, 5156 &ctrl_info->error_buffer_dma_handle, 5157 GFP_KERNEL); 5158 if (!ctrl_info->error_buffer) 5159 return -ENOMEM; 5160 5161 return 0; 5162} 5163 5164static int pqi_alloc_io_resources(struct pqi_ctrl_info *ctrl_info) 5165{ 5166 unsigned int i; 5167 void *sg_chain_buffer; 5168 size_t sg_chain_buffer_length; 5169 dma_addr_t sg_chain_buffer_dma_handle; 5170 struct device *dev; 5171 struct pqi_io_request *io_request; 5172 5173 ctrl_info->io_request_pool = kcalloc(ctrl_info->max_io_slots, 5174 sizeof(ctrl_info->io_request_pool[0]), GFP_KERNEL); 5175 5176 if (!ctrl_info->io_request_pool) { 5177 dev_err(&ctrl_info->pci_dev->dev, 5178 "failed to allocate I/O request pool\n"); 5179 goto error; 5180 } 5181 5182 dev = &ctrl_info->pci_dev->dev; 5183 sg_chain_buffer_length = ctrl_info->sg_chain_buffer_length; 5184 io_request = ctrl_info->io_request_pool; 5185 5186 for (i = 0; i < ctrl_info->max_io_slots; i++) { 5187 io_request->iu = kmalloc(ctrl_info->max_inbound_iu_length, GFP_KERNEL); 5188 5189 if (!io_request->iu) { 5190 dev_err(&ctrl_info->pci_dev->dev, 5191 "failed to allocate IU buffers\n"); 5192 goto error; 5193 } 5194 5195 sg_chain_buffer = dma_alloc_coherent(dev, 5196 sg_chain_buffer_length, &sg_chain_buffer_dma_handle, 5197 GFP_KERNEL); 5198 5199 if (!sg_chain_buffer) { 5200 dev_err(&ctrl_info->pci_dev->dev, 5201 "failed to allocate PQI scatter-gather chain buffers\n"); 5202 goto error; 5203 } 5204 5205 io_request->index = i; 5206 io_request->sg_chain_buffer = sg_chain_buffer; 5207 io_request->sg_chain_buffer_dma_handle = sg_chain_buffer_dma_handle; 5208 io_request++; 5209 } 5210 5211 return 0; 5212 5213error: 5214 pqi_free_all_io_requests(ctrl_info); 5215 5216 return -ENOMEM; 5217} 5218 5219/* 5220 * Calculate required resources that are sized based on max. outstanding 5221 * requests and max. transfer size. 5222 */ 5223 5224static void pqi_calculate_io_resources(struct pqi_ctrl_info *ctrl_info) 5225{ 5226 u32 max_transfer_size; 5227 u32 max_sg_entries; 5228 5229 ctrl_info->scsi_ml_can_queue = 5230 ctrl_info->max_outstanding_requests - PQI_RESERVED_IO_SLOTS; 5231 ctrl_info->max_io_slots = ctrl_info->max_outstanding_requests; 5232 5233 ctrl_info->error_buffer_length = 5234 ctrl_info->max_io_slots * PQI_ERROR_BUFFER_ELEMENT_LENGTH; 5235 5236 if (reset_devices) 5237 max_transfer_size = min(ctrl_info->max_transfer_size, 5238 PQI_MAX_TRANSFER_SIZE_KDUMP); 5239 else 5240 max_transfer_size = min(ctrl_info->max_transfer_size, 5241 PQI_MAX_TRANSFER_SIZE); 5242 5243 max_sg_entries = max_transfer_size / PAGE_SIZE; 5244 5245 /* +1 to cover when the buffer is not page-aligned. */ 5246 max_sg_entries++; 5247 5248 max_sg_entries = min(ctrl_info->max_sg_entries, max_sg_entries); 5249 5250 max_transfer_size = (max_sg_entries - 1) * PAGE_SIZE; 5251 5252 ctrl_info->sg_chain_buffer_length = 5253 (max_sg_entries * sizeof(struct pqi_sg_descriptor)) + 5254 PQI_EXTRA_SGL_MEMORY; 5255 ctrl_info->sg_tablesize = max_sg_entries; 5256 ctrl_info->max_sectors = max_transfer_size / 512; 5257} 5258 5259static void pqi_calculate_queue_resources(struct pqi_ctrl_info *ctrl_info) 5260{ 5261 int num_queue_groups; 5262 u16 num_elements_per_iq; 5263 u16 num_elements_per_oq; 5264 5265 if (reset_devices) { 5266 num_queue_groups = 1; 5267 } else { 5268 int num_cpus; 5269 int max_queue_groups; 5270 5271 max_queue_groups = min(ctrl_info->max_inbound_queues / 2, 5272 ctrl_info->max_outbound_queues - 1); 5273 max_queue_groups = min(max_queue_groups, PQI_MAX_QUEUE_GROUPS); 5274 5275 num_cpus = num_online_cpus(); 5276 num_queue_groups = min(num_cpus, ctrl_info->max_msix_vectors); 5277 num_queue_groups = min(num_queue_groups, max_queue_groups); 5278 } 5279 5280 ctrl_info->num_queue_groups = num_queue_groups; 5281 5282 /* 5283 * Make sure that the max. inbound IU length is an even multiple 5284 * of our inbound element length. 5285 */ 5286 ctrl_info->max_inbound_iu_length = 5287 (ctrl_info->max_inbound_iu_length_per_firmware / 5288 PQI_OPERATIONAL_IQ_ELEMENT_LENGTH) * 5289 PQI_OPERATIONAL_IQ_ELEMENT_LENGTH; 5290 5291 num_elements_per_iq = 5292 (ctrl_info->max_inbound_iu_length / 5293 PQI_OPERATIONAL_IQ_ELEMENT_LENGTH); 5294 5295 /* Add one because one element in each queue is unusable. */ 5296 num_elements_per_iq++; 5297 5298 num_elements_per_iq = min(num_elements_per_iq, 5299 ctrl_info->max_elements_per_iq); 5300 5301 num_elements_per_oq = ((num_elements_per_iq - 1) * 2) + 1; 5302 num_elements_per_oq = min(num_elements_per_oq, 5303 ctrl_info->max_elements_per_oq); 5304 5305 ctrl_info->num_elements_per_iq = num_elements_per_iq; 5306 ctrl_info->num_elements_per_oq = num_elements_per_oq; 5307 5308 ctrl_info->max_sg_per_iu = 5309 ((ctrl_info->max_inbound_iu_length - 5310 PQI_OPERATIONAL_IQ_ELEMENT_LENGTH) / 5311 sizeof(struct pqi_sg_descriptor)) + 5312 PQI_MAX_EMBEDDED_SG_DESCRIPTORS; 5313 5314 ctrl_info->max_sg_per_r56_iu = 5315 ((ctrl_info->max_inbound_iu_length - 5316 PQI_OPERATIONAL_IQ_ELEMENT_LENGTH) / 5317 sizeof(struct pqi_sg_descriptor)) + 5318 PQI_MAX_EMBEDDED_R56_SG_DESCRIPTORS; 5319} 5320 5321static inline void pqi_set_sg_descriptor(struct pqi_sg_descriptor *sg_descriptor, 5322 struct scatterlist *sg) 5323{ 5324 u64 address = (u64)sg_dma_address(sg); 5325 unsigned int length = sg_dma_len(sg); 5326 5327 put_unaligned_le64(address, &sg_descriptor->address); 5328 put_unaligned_le32(length, &sg_descriptor->length); 5329 put_unaligned_le32(0, &sg_descriptor->flags); 5330} 5331 5332static unsigned int pqi_build_sg_list(struct pqi_sg_descriptor *sg_descriptor, 5333 struct scatterlist *sg, int sg_count, struct pqi_io_request *io_request, 5334 int max_sg_per_iu, bool *chained) 5335{ 5336 int i; 5337 unsigned int num_sg_in_iu; 5338 5339 *chained = false; 5340 i = 0; 5341 num_sg_in_iu = 0; 5342 max_sg_per_iu--; /* Subtract 1 to leave room for chain marker. */ 5343 5344 while (1) { 5345 pqi_set_sg_descriptor(sg_descriptor, sg); 5346 if (!*chained) 5347 num_sg_in_iu++; 5348 i++; 5349 if (i == sg_count) 5350 break; 5351 sg_descriptor++; 5352 if (i == max_sg_per_iu) { 5353 put_unaligned_le64((u64)io_request->sg_chain_buffer_dma_handle, 5354 &sg_descriptor->address); 5355 put_unaligned_le32((sg_count - num_sg_in_iu) * sizeof(*sg_descriptor), 5356 &sg_descriptor->length); 5357 put_unaligned_le32(CISS_SG_CHAIN, &sg_descriptor->flags); 5358 *chained = true; 5359 num_sg_in_iu++; 5360 sg_descriptor = io_request->sg_chain_buffer; 5361 } 5362 sg = sg_next(sg); 5363 } 5364 5365 put_unaligned_le32(CISS_SG_LAST, &sg_descriptor->flags); 5366 5367 return num_sg_in_iu; 5368} 5369 5370static int pqi_build_raid_sg_list(struct pqi_ctrl_info *ctrl_info, 5371 struct pqi_raid_path_request *request, struct scsi_cmnd *scmd, 5372 struct pqi_io_request *io_request) 5373{ 5374 u16 iu_length; 5375 int sg_count; 5376 bool chained; 5377 unsigned int num_sg_in_iu; 5378 struct scatterlist *sg; 5379 struct pqi_sg_descriptor *sg_descriptor; 5380 5381 sg_count = scsi_dma_map(scmd); 5382 if (sg_count < 0) 5383 return sg_count; 5384 5385 iu_length = offsetof(struct pqi_raid_path_request, sg_descriptors) - 5386 PQI_REQUEST_HEADER_LENGTH; 5387 5388 if (sg_count == 0) 5389 goto out; 5390 5391 sg = scsi_sglist(scmd); 5392 sg_descriptor = request->sg_descriptors; 5393 5394 num_sg_in_iu = pqi_build_sg_list(sg_descriptor, sg, sg_count, io_request, 5395 ctrl_info->max_sg_per_iu, &chained); 5396 5397 request->partial = chained; 5398 iu_length += num_sg_in_iu * sizeof(*sg_descriptor); 5399 5400out: 5401 put_unaligned_le16(iu_length, &request->header.iu_length); 5402 5403 return 0; 5404} 5405 5406static int pqi_build_aio_r1_sg_list(struct pqi_ctrl_info *ctrl_info, 5407 struct pqi_aio_r1_path_request *request, struct scsi_cmnd *scmd, 5408 struct pqi_io_request *io_request) 5409{ 5410 u16 iu_length; 5411 int sg_count; 5412 bool chained; 5413 unsigned int num_sg_in_iu; 5414 struct scatterlist *sg; 5415 struct pqi_sg_descriptor *sg_descriptor; 5416 5417 sg_count = scsi_dma_map(scmd); 5418 if (sg_count < 0) 5419 return sg_count; 5420 5421 iu_length = offsetof(struct pqi_aio_r1_path_request, sg_descriptors) - 5422 PQI_REQUEST_HEADER_LENGTH; 5423 num_sg_in_iu = 0; 5424 5425 if (sg_count == 0) 5426 goto out; 5427 5428 sg = scsi_sglist(scmd); 5429 sg_descriptor = request->sg_descriptors; 5430 5431 num_sg_in_iu = pqi_build_sg_list(sg_descriptor, sg, sg_count, io_request, 5432 ctrl_info->max_sg_per_iu, &chained); 5433 5434 request->partial = chained; 5435 iu_length += num_sg_in_iu * sizeof(*sg_descriptor); 5436 5437out: 5438 put_unaligned_le16(iu_length, &request->header.iu_length); 5439 request->num_sg_descriptors = num_sg_in_iu; 5440 5441 return 0; 5442} 5443 5444static int pqi_build_aio_r56_sg_list(struct pqi_ctrl_info *ctrl_info, 5445 struct pqi_aio_r56_path_request *request, struct scsi_cmnd *scmd, 5446 struct pqi_io_request *io_request) 5447{ 5448 u16 iu_length; 5449 int sg_count; 5450 bool chained; 5451 unsigned int num_sg_in_iu; 5452 struct scatterlist *sg; 5453 struct pqi_sg_descriptor *sg_descriptor; 5454 5455 sg_count = scsi_dma_map(scmd); 5456 if (sg_count < 0) 5457 return sg_count; 5458 5459 iu_length = offsetof(struct pqi_aio_r56_path_request, sg_descriptors) - 5460 PQI_REQUEST_HEADER_LENGTH; 5461 num_sg_in_iu = 0; 5462 5463 if (sg_count != 0) { 5464 sg = scsi_sglist(scmd); 5465 sg_descriptor = request->sg_descriptors; 5466 5467 num_sg_in_iu = pqi_build_sg_list(sg_descriptor, sg, sg_count, io_request, 5468 ctrl_info->max_sg_per_r56_iu, &chained); 5469 5470 request->partial = chained; 5471 iu_length += num_sg_in_iu * sizeof(*sg_descriptor); 5472 } 5473 5474 put_unaligned_le16(iu_length, &request->header.iu_length); 5475 request->num_sg_descriptors = num_sg_in_iu; 5476 5477 return 0; 5478} 5479 5480static int pqi_build_aio_sg_list(struct pqi_ctrl_info *ctrl_info, 5481 struct pqi_aio_path_request *request, struct scsi_cmnd *scmd, 5482 struct pqi_io_request *io_request) 5483{ 5484 u16 iu_length; 5485 int sg_count; 5486 bool chained; 5487 unsigned int num_sg_in_iu; 5488 struct scatterlist *sg; 5489 struct pqi_sg_descriptor *sg_descriptor; 5490 5491 sg_count = scsi_dma_map(scmd); 5492 if (sg_count < 0) 5493 return sg_count; 5494 5495 iu_length = offsetof(struct pqi_aio_path_request, sg_descriptors) - 5496 PQI_REQUEST_HEADER_LENGTH; 5497 num_sg_in_iu = 0; 5498 5499 if (sg_count == 0) 5500 goto out; 5501 5502 sg = scsi_sglist(scmd); 5503 sg_descriptor = request->sg_descriptors; 5504 5505 num_sg_in_iu = pqi_build_sg_list(sg_descriptor, sg, sg_count, io_request, 5506 ctrl_info->max_sg_per_iu, &chained); 5507 5508 request->partial = chained; 5509 iu_length += num_sg_in_iu * sizeof(*sg_descriptor); 5510 5511out: 5512 put_unaligned_le16(iu_length, &request->header.iu_length); 5513 request->num_sg_descriptors = num_sg_in_iu; 5514 5515 return 0; 5516} 5517 5518static void pqi_raid_io_complete(struct pqi_io_request *io_request, 5519 void *context) 5520{ 5521 struct scsi_cmnd *scmd; 5522 5523 scmd = io_request->scmd; 5524 pqi_free_io_request(io_request); 5525 scsi_dma_unmap(scmd); 5526 pqi_scsi_done(scmd); 5527} 5528 5529static int pqi_raid_submit_io(struct pqi_ctrl_info *ctrl_info, 5530 struct pqi_scsi_dev *device, struct scsi_cmnd *scmd, 5531 struct pqi_queue_group *queue_group, bool io_high_prio) 5532{ 5533 int rc; 5534 size_t cdb_length; 5535 struct pqi_io_request *io_request; 5536 struct pqi_raid_path_request *request; 5537 5538 io_request = pqi_alloc_io_request(ctrl_info, scmd); 5539 if (!io_request) 5540 return SCSI_MLQUEUE_HOST_BUSY; 5541 5542 io_request->io_complete_callback = pqi_raid_io_complete; 5543 io_request->scmd = scmd; 5544 5545 request = io_request->iu; 5546 memset(request, 0, offsetof(struct pqi_raid_path_request, sg_descriptors)); 5547 5548 request->header.iu_type = PQI_REQUEST_IU_RAID_PATH_IO; 5549 put_unaligned_le32(scsi_bufflen(scmd), &request->buffer_length); 5550 request->task_attribute = SOP_TASK_ATTRIBUTE_SIMPLE; 5551 request->command_priority = io_high_prio; 5552 put_unaligned_le16(io_request->index, &request->request_id); 5553 request->error_index = request->request_id; 5554 memcpy(request->lun_number, device->scsi3addr, sizeof(request->lun_number)); 5555 request->ml_device_lun_number = (u8)scmd->device->lun; 5556 5557 cdb_length = min_t(size_t, scmd->cmd_len, sizeof(request->cdb)); 5558 memcpy(request->cdb, scmd->cmnd, cdb_length); 5559 5560 switch (cdb_length) { 5561 case 6: 5562 case 10: 5563 case 12: 5564 case 16: 5565 request->additional_cdb_bytes_usage = SOP_ADDITIONAL_CDB_BYTES_0; 5566 break; 5567 case 20: 5568 request->additional_cdb_bytes_usage = SOP_ADDITIONAL_CDB_BYTES_4; 5569 break; 5570 case 24: 5571 request->additional_cdb_bytes_usage = SOP_ADDITIONAL_CDB_BYTES_8; 5572 break; 5573 case 28: 5574 request->additional_cdb_bytes_usage = SOP_ADDITIONAL_CDB_BYTES_12; 5575 break; 5576 case 32: 5577 default: 5578 request->additional_cdb_bytes_usage = SOP_ADDITIONAL_CDB_BYTES_16; 5579 break; 5580 } 5581 5582 switch (scmd->sc_data_direction) { 5583 case DMA_FROM_DEVICE: 5584 request->data_direction = SOP_READ_FLAG; 5585 break; 5586 case DMA_TO_DEVICE: 5587 request->data_direction = SOP_WRITE_FLAG; 5588 break; 5589 case DMA_NONE: 5590 request->data_direction = SOP_NO_DIRECTION_FLAG; 5591 break; 5592 case DMA_BIDIRECTIONAL: 5593 request->data_direction = SOP_BIDIRECTIONAL; 5594 break; 5595 default: 5596 dev_err(&ctrl_info->pci_dev->dev, 5597 "unknown data direction: %d\n", 5598 scmd->sc_data_direction); 5599 break; 5600 } 5601 5602 rc = pqi_build_raid_sg_list(ctrl_info, request, scmd, io_request); 5603 if (rc) { 5604 pqi_free_io_request(io_request); 5605 return SCSI_MLQUEUE_HOST_BUSY; 5606 } 5607 5608 pqi_start_io(ctrl_info, queue_group, RAID_PATH, io_request); 5609 5610 return 0; 5611} 5612 5613static inline int pqi_raid_submit_scsi_cmd(struct pqi_ctrl_info *ctrl_info, 5614 struct pqi_scsi_dev *device, struct scsi_cmnd *scmd, 5615 struct pqi_queue_group *queue_group) 5616{ 5617 bool io_high_prio; 5618 5619 io_high_prio = pqi_is_io_high_priority(device, scmd); 5620 5621 return pqi_raid_submit_io(ctrl_info, device, scmd, queue_group, io_high_prio); 5622} 5623 5624static bool pqi_raid_bypass_retry_needed(struct pqi_io_request *io_request) 5625{ 5626 struct scsi_cmnd *scmd; 5627 struct pqi_scsi_dev *device; 5628 struct pqi_ctrl_info *ctrl_info; 5629 5630 if (!io_request->raid_bypass) 5631 return false; 5632 5633 scmd = io_request->scmd; 5634 if ((scmd->result & 0xff) == SAM_STAT_GOOD) 5635 return false; 5636 if (host_byte(scmd->result) == DID_NO_CONNECT) 5637 return false; 5638 5639 device = scmd->device->hostdata; 5640 if (pqi_device_offline(device) || pqi_device_in_remove(device)) 5641 return false; 5642 5643 ctrl_info = shost_to_hba(scmd->device->host); 5644 if (pqi_ctrl_offline(ctrl_info)) 5645 return false; 5646 5647 return true; 5648} 5649 5650static void pqi_aio_io_complete(struct pqi_io_request *io_request, 5651 void *context) 5652{ 5653 struct scsi_cmnd *scmd; 5654 5655 scmd = io_request->scmd; 5656 scsi_dma_unmap(scmd); 5657 if (io_request->status == -EAGAIN || pqi_raid_bypass_retry_needed(io_request)) { 5658 set_host_byte(scmd, DID_IMM_RETRY); 5659 pqi_cmd_priv(scmd)->this_residual++; 5660 } 5661 5662 pqi_free_io_request(io_request); 5663 pqi_scsi_done(scmd); 5664} 5665 5666static inline int pqi_aio_submit_scsi_cmd(struct pqi_ctrl_info *ctrl_info, 5667 struct pqi_scsi_dev *device, struct scsi_cmnd *scmd, 5668 struct pqi_queue_group *queue_group) 5669{ 5670 bool io_high_prio; 5671 5672 io_high_prio = pqi_is_io_high_priority(device, scmd); 5673 5674 return pqi_aio_submit_io(ctrl_info, scmd, device->aio_handle, 5675 scmd->cmnd, scmd->cmd_len, queue_group, NULL, 5676 false, io_high_prio); 5677} 5678 5679static int pqi_aio_submit_io(struct pqi_ctrl_info *ctrl_info, 5680 struct scsi_cmnd *scmd, u32 aio_handle, u8 *cdb, 5681 unsigned int cdb_length, struct pqi_queue_group *queue_group, 5682 struct pqi_encryption_info *encryption_info, bool raid_bypass, 5683 bool io_high_prio) 5684{ 5685 int rc; 5686 struct pqi_io_request *io_request; 5687 struct pqi_aio_path_request *request; 5688 5689 io_request = pqi_alloc_io_request(ctrl_info, scmd); 5690 if (!io_request) 5691 return SCSI_MLQUEUE_HOST_BUSY; 5692 5693 io_request->io_complete_callback = pqi_aio_io_complete; 5694 io_request->scmd = scmd; 5695 io_request->raid_bypass = raid_bypass; 5696 5697 request = io_request->iu; 5698 memset(request, 0, offsetof(struct pqi_aio_path_request, sg_descriptors)); 5699 5700 request->header.iu_type = PQI_REQUEST_IU_AIO_PATH_IO; 5701 put_unaligned_le32(aio_handle, &request->nexus_id); 5702 put_unaligned_le32(scsi_bufflen(scmd), &request->buffer_length); 5703 request->task_attribute = SOP_TASK_ATTRIBUTE_SIMPLE; 5704 request->command_priority = io_high_prio; 5705 put_unaligned_le16(io_request->index, &request->request_id); 5706 request->error_index = request->request_id; 5707 if (!raid_bypass && ctrl_info->multi_lun_device_supported) 5708 put_unaligned_le64(scmd->device->lun << 8, &request->lun_number); 5709 if (cdb_length > sizeof(request->cdb)) 5710 cdb_length = sizeof(request->cdb); 5711 request->cdb_length = cdb_length; 5712 memcpy(request->cdb, cdb, cdb_length); 5713 5714 switch (scmd->sc_data_direction) { 5715 case DMA_TO_DEVICE: 5716 request->data_direction = SOP_READ_FLAG; 5717 break; 5718 case DMA_FROM_DEVICE: 5719 request->data_direction = SOP_WRITE_FLAG; 5720 break; 5721 case DMA_NONE: 5722 request->data_direction = SOP_NO_DIRECTION_FLAG; 5723 break; 5724 case DMA_BIDIRECTIONAL: 5725 request->data_direction = SOP_BIDIRECTIONAL; 5726 break; 5727 default: 5728 dev_err(&ctrl_info->pci_dev->dev, 5729 "unknown data direction: %d\n", 5730 scmd->sc_data_direction); 5731 break; 5732 } 5733 5734 if (encryption_info) { 5735 request->encryption_enable = true; 5736 put_unaligned_le16(encryption_info->data_encryption_key_index, 5737 &request->data_encryption_key_index); 5738 put_unaligned_le32(encryption_info->encrypt_tweak_lower, 5739 &request->encrypt_tweak_lower); 5740 put_unaligned_le32(encryption_info->encrypt_tweak_upper, 5741 &request->encrypt_tweak_upper); 5742 } 5743 5744 rc = pqi_build_aio_sg_list(ctrl_info, request, scmd, io_request); 5745 if (rc) { 5746 pqi_free_io_request(io_request); 5747 return SCSI_MLQUEUE_HOST_BUSY; 5748 } 5749 5750 pqi_start_io(ctrl_info, queue_group, AIO_PATH, io_request); 5751 5752 return 0; 5753} 5754 5755static int pqi_aio_submit_r1_write_io(struct pqi_ctrl_info *ctrl_info, 5756 struct scsi_cmnd *scmd, struct pqi_queue_group *queue_group, 5757 struct pqi_encryption_info *encryption_info, struct pqi_scsi_dev *device, 5758 struct pqi_scsi_dev_raid_map_data *rmd) 5759{ 5760 int rc; 5761 struct pqi_io_request *io_request; 5762 struct pqi_aio_r1_path_request *r1_request; 5763 5764 io_request = pqi_alloc_io_request(ctrl_info, scmd); 5765 if (!io_request) 5766 return SCSI_MLQUEUE_HOST_BUSY; 5767 5768 io_request->io_complete_callback = pqi_aio_io_complete; 5769 io_request->scmd = scmd; 5770 io_request->raid_bypass = true; 5771 5772 r1_request = io_request->iu; 5773 memset(r1_request, 0, offsetof(struct pqi_aio_r1_path_request, sg_descriptors)); 5774 5775 r1_request->header.iu_type = PQI_REQUEST_IU_AIO_PATH_RAID1_IO; 5776 put_unaligned_le16(*(u16 *)device->scsi3addr & 0x3fff, &r1_request->volume_id); 5777 r1_request->num_drives = rmd->num_it_nexus_entries; 5778 put_unaligned_le32(rmd->it_nexus[0], &r1_request->it_nexus_1); 5779 put_unaligned_le32(rmd->it_nexus[1], &r1_request->it_nexus_2); 5780 if (rmd->num_it_nexus_entries == 3) 5781 put_unaligned_le32(rmd->it_nexus[2], &r1_request->it_nexus_3); 5782 5783 put_unaligned_le32(scsi_bufflen(scmd), &r1_request->data_length); 5784 r1_request->task_attribute = SOP_TASK_ATTRIBUTE_SIMPLE; 5785 put_unaligned_le16(io_request->index, &r1_request->request_id); 5786 r1_request->error_index = r1_request->request_id; 5787 if (rmd->cdb_length > sizeof(r1_request->cdb)) 5788 rmd->cdb_length = sizeof(r1_request->cdb); 5789 r1_request->cdb_length = rmd->cdb_length; 5790 memcpy(r1_request->cdb, rmd->cdb, rmd->cdb_length); 5791 5792 /* The direction is always write. */ 5793 r1_request->data_direction = SOP_READ_FLAG; 5794 5795 if (encryption_info) { 5796 r1_request->encryption_enable = true; 5797 put_unaligned_le16(encryption_info->data_encryption_key_index, 5798 &r1_request->data_encryption_key_index); 5799 put_unaligned_le32(encryption_info->encrypt_tweak_lower, 5800 &r1_request->encrypt_tweak_lower); 5801 put_unaligned_le32(encryption_info->encrypt_tweak_upper, 5802 &r1_request->encrypt_tweak_upper); 5803 } 5804 5805 rc = pqi_build_aio_r1_sg_list(ctrl_info, r1_request, scmd, io_request); 5806 if (rc) { 5807 pqi_free_io_request(io_request); 5808 return SCSI_MLQUEUE_HOST_BUSY; 5809 } 5810 5811 pqi_start_io(ctrl_info, queue_group, AIO_PATH, io_request); 5812 5813 return 0; 5814} 5815 5816static int pqi_aio_submit_r56_write_io(struct pqi_ctrl_info *ctrl_info, 5817 struct scsi_cmnd *scmd, struct pqi_queue_group *queue_group, 5818 struct pqi_encryption_info *encryption_info, struct pqi_scsi_dev *device, 5819 struct pqi_scsi_dev_raid_map_data *rmd) 5820{ 5821 int rc; 5822 struct pqi_io_request *io_request; 5823 struct pqi_aio_r56_path_request *r56_request; 5824 5825 io_request = pqi_alloc_io_request(ctrl_info, scmd); 5826 if (!io_request) 5827 return SCSI_MLQUEUE_HOST_BUSY; 5828 io_request->io_complete_callback = pqi_aio_io_complete; 5829 io_request->scmd = scmd; 5830 io_request->raid_bypass = true; 5831 5832 r56_request = io_request->iu; 5833 memset(r56_request, 0, offsetof(struct pqi_aio_r56_path_request, sg_descriptors)); 5834 5835 if (device->raid_level == SA_RAID_5 || device->raid_level == SA_RAID_51) 5836 r56_request->header.iu_type = PQI_REQUEST_IU_AIO_PATH_RAID5_IO; 5837 else 5838 r56_request->header.iu_type = PQI_REQUEST_IU_AIO_PATH_RAID6_IO; 5839 5840 put_unaligned_le16(*(u16 *)device->scsi3addr & 0x3fff, &r56_request->volume_id); 5841 put_unaligned_le32(rmd->aio_handle, &r56_request->data_it_nexus); 5842 put_unaligned_le32(rmd->p_parity_it_nexus, &r56_request->p_parity_it_nexus); 5843 if (rmd->raid_level == SA_RAID_6) { 5844 put_unaligned_le32(rmd->q_parity_it_nexus, &r56_request->q_parity_it_nexus); 5845 r56_request->xor_multiplier = rmd->xor_mult; 5846 } 5847 put_unaligned_le32(scsi_bufflen(scmd), &r56_request->data_length); 5848 r56_request->task_attribute = SOP_TASK_ATTRIBUTE_SIMPLE; 5849 put_unaligned_le64(rmd->row, &r56_request->row); 5850 5851 put_unaligned_le16(io_request->index, &r56_request->request_id); 5852 r56_request->error_index = r56_request->request_id; 5853 5854 if (rmd->cdb_length > sizeof(r56_request->cdb)) 5855 rmd->cdb_length = sizeof(r56_request->cdb); 5856 r56_request->cdb_length = rmd->cdb_length; 5857 memcpy(r56_request->cdb, rmd->cdb, rmd->cdb_length); 5858 5859 /* The direction is always write. */ 5860 r56_request->data_direction = SOP_READ_FLAG; 5861 5862 if (encryption_info) { 5863 r56_request->encryption_enable = true; 5864 put_unaligned_le16(encryption_info->data_encryption_key_index, 5865 &r56_request->data_encryption_key_index); 5866 put_unaligned_le32(encryption_info->encrypt_tweak_lower, 5867 &r56_request->encrypt_tweak_lower); 5868 put_unaligned_le32(encryption_info->encrypt_tweak_upper, 5869 &r56_request->encrypt_tweak_upper); 5870 } 5871 5872 rc = pqi_build_aio_r56_sg_list(ctrl_info, r56_request, scmd, io_request); 5873 if (rc) { 5874 pqi_free_io_request(io_request); 5875 return SCSI_MLQUEUE_HOST_BUSY; 5876 } 5877 5878 pqi_start_io(ctrl_info, queue_group, AIO_PATH, io_request); 5879 5880 return 0; 5881} 5882 5883static inline u16 pqi_get_hw_queue(struct pqi_ctrl_info *ctrl_info, 5884 struct scsi_cmnd *scmd) 5885{ 5886 /* 5887 * We are setting host_tagset = 1 during init. 5888 */ 5889 return blk_mq_unique_tag_to_hwq(blk_mq_unique_tag(scsi_cmd_to_rq(scmd))); 5890} 5891 5892static inline bool pqi_is_bypass_eligible_request(struct scsi_cmnd *scmd) 5893{ 5894 if (blk_rq_is_passthrough(scsi_cmd_to_rq(scmd))) 5895 return false; 5896 5897 return pqi_cmd_priv(scmd)->this_residual == 0; 5898} 5899 5900/* 5901 * This function gets called just before we hand the completed SCSI request 5902 * back to the SML. 5903 */ 5904 5905void pqi_prep_for_scsi_done(struct scsi_cmnd *scmd) 5906{ 5907 struct pqi_scsi_dev *device; 5908 struct completion *wait; 5909 5910 if (!scmd->device) { 5911 set_host_byte(scmd, DID_NO_CONNECT); 5912 return; 5913 } 5914 5915 device = scmd->device->hostdata; 5916 if (!device) { 5917 set_host_byte(scmd, DID_NO_CONNECT); 5918 return; 5919 } 5920 5921 atomic_dec(&device->scsi_cmds_outstanding[scmd->device->lun]); 5922 5923 wait = (struct completion *)xchg(&scmd->host_scribble, NULL); 5924 if (wait != PQI_NO_COMPLETION) 5925 complete(wait); 5926} 5927 5928static bool pqi_is_parity_write_stream(struct pqi_ctrl_info *ctrl_info, 5929 struct scsi_cmnd *scmd) 5930{ 5931 u32 oldest_jiffies; 5932 u8 lru_index; 5933 int i; 5934 int rc; 5935 struct pqi_scsi_dev *device; 5936 struct pqi_stream_data *pqi_stream_data; 5937 struct pqi_scsi_dev_raid_map_data rmd; 5938 5939 if (!ctrl_info->enable_stream_detection) 5940 return false; 5941 5942 rc = pqi_get_aio_lba_and_block_count(scmd, &rmd); 5943 if (rc) 5944 return false; 5945 5946 /* Check writes only. */ 5947 if (!rmd.is_write) 5948 return false; 5949 5950 device = scmd->device->hostdata; 5951 5952 /* Check for RAID 5/6 streams. */ 5953 if (device->raid_level != SA_RAID_5 && device->raid_level != SA_RAID_6) 5954 return false; 5955 5956 /* 5957 * If controller does not support AIO RAID{5,6} writes, need to send 5958 * requests down non-AIO path. 5959 */ 5960 if ((device->raid_level == SA_RAID_5 && !ctrl_info->enable_r5_writes) || 5961 (device->raid_level == SA_RAID_6 && !ctrl_info->enable_r6_writes)) 5962 return true; 5963 5964 lru_index = 0; 5965 oldest_jiffies = INT_MAX; 5966 for (i = 0; i < NUM_STREAMS_PER_LUN; i++) { 5967 pqi_stream_data = &device->stream_data[i]; 5968 /* 5969 * Check for adjacent request or request is within 5970 * the previous request. 5971 */ 5972 if ((pqi_stream_data->next_lba && 5973 rmd.first_block >= pqi_stream_data->next_lba) && 5974 rmd.first_block <= pqi_stream_data->next_lba + 5975 rmd.block_cnt) { 5976 pqi_stream_data->next_lba = rmd.first_block + 5977 rmd.block_cnt; 5978 pqi_stream_data->last_accessed = jiffies; 5979 return true; 5980 } 5981 5982 /* unused entry */ 5983 if (pqi_stream_data->last_accessed == 0) { 5984 lru_index = i; 5985 break; 5986 } 5987 5988 /* Find entry with oldest last accessed time. */ 5989 if (pqi_stream_data->last_accessed <= oldest_jiffies) { 5990 oldest_jiffies = pqi_stream_data->last_accessed; 5991 lru_index = i; 5992 } 5993 } 5994 5995 /* Set LRU entry. */ 5996 pqi_stream_data = &device->stream_data[lru_index]; 5997 pqi_stream_data->last_accessed = jiffies; 5998 pqi_stream_data->next_lba = rmd.first_block + rmd.block_cnt; 5999 6000 return false; 6001} 6002 6003static int pqi_scsi_queue_command(struct Scsi_Host *shost, struct scsi_cmnd *scmd) 6004{ 6005 int rc; 6006 struct pqi_ctrl_info *ctrl_info; 6007 struct pqi_scsi_dev *device; 6008 u16 hw_queue; 6009 struct pqi_queue_group *queue_group; 6010 bool raid_bypassed; 6011 u8 lun; 6012 6013 scmd->host_scribble = PQI_NO_COMPLETION; 6014 6015 device = scmd->device->hostdata; 6016 6017 if (!device) { 6018 set_host_byte(scmd, DID_NO_CONNECT); 6019 pqi_scsi_done(scmd); 6020 return 0; 6021 } 6022 6023 lun = (u8)scmd->device->lun; 6024 6025 atomic_inc(&device->scsi_cmds_outstanding[lun]); 6026 6027 ctrl_info = shost_to_hba(shost); 6028 6029 if (pqi_ctrl_offline(ctrl_info) || pqi_device_in_remove(device)) { 6030 set_host_byte(scmd, DID_NO_CONNECT); 6031 pqi_scsi_done(scmd); 6032 return 0; 6033 } 6034 6035 if (pqi_ctrl_blocked(ctrl_info) || pqi_device_in_reset(device, lun)) { 6036 rc = SCSI_MLQUEUE_HOST_BUSY; 6037 goto out; 6038 } 6039 6040 /* 6041 * This is necessary because the SML doesn't zero out this field during 6042 * error recovery. 6043 */ 6044 scmd->result = 0; 6045 6046 hw_queue = pqi_get_hw_queue(ctrl_info, scmd); 6047 queue_group = &ctrl_info->queue_groups[hw_queue]; 6048 6049 if (pqi_is_logical_device(device)) { 6050 raid_bypassed = false; 6051 if (device->raid_bypass_enabled && 6052 pqi_is_bypass_eligible_request(scmd) && 6053 !pqi_is_parity_write_stream(ctrl_info, scmd)) { 6054 rc = pqi_raid_bypass_submit_scsi_cmd(ctrl_info, device, scmd, queue_group); 6055 if (rc == 0 || rc == SCSI_MLQUEUE_HOST_BUSY) { 6056 raid_bypassed = true; 6057 device->raid_bypass_cnt++; 6058 } 6059 } 6060 if (!raid_bypassed) 6061 rc = pqi_raid_submit_scsi_cmd(ctrl_info, device, scmd, queue_group); 6062 } else { 6063 if (device->aio_enabled) 6064 rc = pqi_aio_submit_scsi_cmd(ctrl_info, device, scmd, queue_group); 6065 else 6066 rc = pqi_raid_submit_scsi_cmd(ctrl_info, device, scmd, queue_group); 6067 } 6068 6069out: 6070 if (rc) { 6071 scmd->host_scribble = NULL; 6072 atomic_dec(&device->scsi_cmds_outstanding[lun]); 6073 } 6074 6075 return rc; 6076} 6077 6078static unsigned int pqi_queued_io_count(struct pqi_ctrl_info *ctrl_info) 6079{ 6080 unsigned int i; 6081 unsigned int path; 6082 unsigned long flags; 6083 unsigned int queued_io_count; 6084 struct pqi_queue_group *queue_group; 6085 struct pqi_io_request *io_request; 6086 6087 queued_io_count = 0; 6088 6089 for (i = 0; i < ctrl_info->num_queue_groups; i++) { 6090 queue_group = &ctrl_info->queue_groups[i]; 6091 for (path = 0; path < 2; path++) { 6092 spin_lock_irqsave(&queue_group->submit_lock[path], flags); 6093 list_for_each_entry(io_request, &queue_group->request_list[path], request_list_entry) 6094 queued_io_count++; 6095 spin_unlock_irqrestore(&queue_group->submit_lock[path], flags); 6096 } 6097 } 6098 6099 return queued_io_count; 6100} 6101 6102static unsigned int pqi_nonempty_inbound_queue_count(struct pqi_ctrl_info *ctrl_info) 6103{ 6104 unsigned int i; 6105 unsigned int path; 6106 unsigned int nonempty_inbound_queue_count; 6107 struct pqi_queue_group *queue_group; 6108 pqi_index_t iq_pi; 6109 pqi_index_t iq_ci; 6110 6111 nonempty_inbound_queue_count = 0; 6112 6113 for (i = 0; i < ctrl_info->num_queue_groups; i++) { 6114 queue_group = &ctrl_info->queue_groups[i]; 6115 for (path = 0; path < 2; path++) { 6116 iq_pi = queue_group->iq_pi_copy[path]; 6117 iq_ci = readl(queue_group->iq_ci[path]); 6118 if (iq_ci != iq_pi) 6119 nonempty_inbound_queue_count++; 6120 } 6121 } 6122 6123 return nonempty_inbound_queue_count; 6124} 6125 6126#define PQI_INBOUND_QUEUES_NONEMPTY_WARNING_TIMEOUT_SECS 10 6127 6128static int pqi_wait_until_inbound_queues_empty(struct pqi_ctrl_info *ctrl_info) 6129{ 6130 unsigned long start_jiffies; 6131 unsigned long warning_timeout; 6132 unsigned int queued_io_count; 6133 unsigned int nonempty_inbound_queue_count; 6134 bool displayed_warning; 6135 6136 displayed_warning = false; 6137 start_jiffies = jiffies; 6138 warning_timeout = (PQI_INBOUND_QUEUES_NONEMPTY_WARNING_TIMEOUT_SECS * HZ) + start_jiffies; 6139 6140 while (1) { 6141 queued_io_count = pqi_queued_io_count(ctrl_info); 6142 nonempty_inbound_queue_count = pqi_nonempty_inbound_queue_count(ctrl_info); 6143 if (queued_io_count == 0 && nonempty_inbound_queue_count == 0) 6144 break; 6145 pqi_check_ctrl_health(ctrl_info); 6146 if (pqi_ctrl_offline(ctrl_info)) 6147 return -ENXIO; 6148 if (time_after(jiffies, warning_timeout)) { 6149 dev_warn(&ctrl_info->pci_dev->dev, 6150 "waiting %u seconds for queued I/O to drain (queued I/O count: %u; non-empty inbound queue count: %u)\n", 6151 jiffies_to_msecs(jiffies - start_jiffies) / 1000, queued_io_count, nonempty_inbound_queue_count); 6152 displayed_warning = true; 6153 warning_timeout = (PQI_INBOUND_QUEUES_NONEMPTY_WARNING_TIMEOUT_SECS * HZ) + jiffies; 6154 } 6155 usleep_range(1000, 2000); 6156 } 6157 6158 if (displayed_warning) 6159 dev_warn(&ctrl_info->pci_dev->dev, 6160 "queued I/O drained after waiting for %u seconds\n", 6161 jiffies_to_msecs(jiffies - start_jiffies) / 1000); 6162 6163 return 0; 6164} 6165 6166static void pqi_fail_io_queued_for_device(struct pqi_ctrl_info *ctrl_info, 6167 struct pqi_scsi_dev *device, u8 lun) 6168{ 6169 unsigned int i; 6170 unsigned int path; 6171 struct pqi_queue_group *queue_group; 6172 unsigned long flags; 6173 struct pqi_io_request *io_request; 6174 struct pqi_io_request *next; 6175 struct scsi_cmnd *scmd; 6176 struct pqi_scsi_dev *scsi_device; 6177 6178 for (i = 0; i < ctrl_info->num_queue_groups; i++) { 6179 queue_group = &ctrl_info->queue_groups[i]; 6180 6181 for (path = 0; path < 2; path++) { 6182 spin_lock_irqsave( 6183 &queue_group->submit_lock[path], flags); 6184 6185 list_for_each_entry_safe(io_request, next, 6186 &queue_group->request_list[path], 6187 request_list_entry) { 6188 6189 scmd = io_request->scmd; 6190 if (!scmd) 6191 continue; 6192 6193 scsi_device = scmd->device->hostdata; 6194 if (scsi_device != device) 6195 continue; 6196 6197 if ((u8)scmd->device->lun != lun) 6198 continue; 6199 6200 list_del(&io_request->request_list_entry); 6201 set_host_byte(scmd, DID_RESET); 6202 pqi_free_io_request(io_request); 6203 scsi_dma_unmap(scmd); 6204 pqi_scsi_done(scmd); 6205 } 6206 6207 spin_unlock_irqrestore( 6208 &queue_group->submit_lock[path], flags); 6209 } 6210 } 6211} 6212 6213#define PQI_PENDING_IO_WARNING_TIMEOUT_SECS 10 6214 6215static int pqi_device_wait_for_pending_io(struct pqi_ctrl_info *ctrl_info, 6216 struct pqi_scsi_dev *device, u8 lun, unsigned long timeout_msecs) 6217{ 6218 int cmds_outstanding; 6219 unsigned long start_jiffies; 6220 unsigned long warning_timeout; 6221 unsigned long msecs_waiting; 6222 6223 start_jiffies = jiffies; 6224 warning_timeout = (PQI_PENDING_IO_WARNING_TIMEOUT_SECS * HZ) + start_jiffies; 6225 6226 while ((cmds_outstanding = atomic_read(&device->scsi_cmds_outstanding[lun])) > 0) { 6227 if (ctrl_info->ctrl_removal_state != PQI_CTRL_GRACEFUL_REMOVAL) { 6228 pqi_check_ctrl_health(ctrl_info); 6229 if (pqi_ctrl_offline(ctrl_info)) 6230 return -ENXIO; 6231 } 6232 msecs_waiting = jiffies_to_msecs(jiffies - start_jiffies); 6233 if (msecs_waiting >= timeout_msecs) { 6234 dev_err(&ctrl_info->pci_dev->dev, 6235 "scsi %d:%d:%d:%d: timed out after %lu seconds waiting for %d outstanding command(s)\n", 6236 ctrl_info->scsi_host->host_no, device->bus, device->target, 6237 lun, msecs_waiting / 1000, cmds_outstanding); 6238 return -ETIMEDOUT; 6239 } 6240 if (time_after(jiffies, warning_timeout)) { 6241 dev_warn(&ctrl_info->pci_dev->dev, 6242 "scsi %d:%d:%d:%d: waiting %lu seconds for %d outstanding command(s)\n", 6243 ctrl_info->scsi_host->host_no, device->bus, device->target, 6244 lun, msecs_waiting / 1000, cmds_outstanding); 6245 warning_timeout = (PQI_PENDING_IO_WARNING_TIMEOUT_SECS * HZ) + jiffies; 6246 } 6247 usleep_range(1000, 2000); 6248 } 6249 6250 return 0; 6251} 6252 6253static void pqi_lun_reset_complete(struct pqi_io_request *io_request, 6254 void *context) 6255{ 6256 struct completion *waiting = context; 6257 6258 complete(waiting); 6259} 6260 6261#define PQI_LUN_RESET_POLL_COMPLETION_SECS 10 6262 6263static int pqi_wait_for_lun_reset_completion(struct pqi_ctrl_info *ctrl_info, 6264 struct pqi_scsi_dev *device, u8 lun, struct completion *wait) 6265{ 6266 int rc; 6267 unsigned int wait_secs; 6268 int cmds_outstanding; 6269 6270 wait_secs = 0; 6271 6272 while (1) { 6273 if (wait_for_completion_io_timeout(wait, 6274 PQI_LUN_RESET_POLL_COMPLETION_SECS * HZ)) { 6275 rc = 0; 6276 break; 6277 } 6278 6279 pqi_check_ctrl_health(ctrl_info); 6280 if (pqi_ctrl_offline(ctrl_info)) { 6281 rc = -ENXIO; 6282 break; 6283 } 6284 6285 wait_secs += PQI_LUN_RESET_POLL_COMPLETION_SECS; 6286 cmds_outstanding = atomic_read(&device->scsi_cmds_outstanding[lun]); 6287 dev_warn(&ctrl_info->pci_dev->dev, 6288 "scsi %d:%d:%d:%d: waiting %u seconds for LUN reset to complete (%d command(s) outstanding)\n", 6289 ctrl_info->scsi_host->host_no, device->bus, device->target, lun, wait_secs, cmds_outstanding); 6290 } 6291 6292 return rc; 6293} 6294 6295#define PQI_LUN_RESET_FIRMWARE_TIMEOUT_SECS 30 6296 6297static int pqi_lun_reset(struct pqi_ctrl_info *ctrl_info, struct pqi_scsi_dev *device, u8 lun) 6298{ 6299 int rc; 6300 struct pqi_io_request *io_request; 6301 DECLARE_COMPLETION_ONSTACK(wait); 6302 struct pqi_task_management_request *request; 6303 6304 io_request = pqi_alloc_io_request(ctrl_info, NULL); 6305 io_request->io_complete_callback = pqi_lun_reset_complete; 6306 io_request->context = &wait; 6307 6308 request = io_request->iu; 6309 memset(request, 0, sizeof(*request)); 6310 6311 request->header.iu_type = PQI_REQUEST_IU_TASK_MANAGEMENT; 6312 put_unaligned_le16(sizeof(*request) - PQI_REQUEST_HEADER_LENGTH, 6313 &request->header.iu_length); 6314 put_unaligned_le16(io_request->index, &request->request_id); 6315 memcpy(request->lun_number, device->scsi3addr, 6316 sizeof(request->lun_number)); 6317 if (!pqi_is_logical_device(device) && ctrl_info->multi_lun_device_supported) 6318 request->ml_device_lun_number = lun; 6319 request->task_management_function = SOP_TASK_MANAGEMENT_LUN_RESET; 6320 if (ctrl_info->tmf_iu_timeout_supported) 6321 put_unaligned_le16(PQI_LUN_RESET_FIRMWARE_TIMEOUT_SECS, &request->timeout); 6322 6323 pqi_start_io(ctrl_info, &ctrl_info->queue_groups[PQI_DEFAULT_QUEUE_GROUP], RAID_PATH, 6324 io_request); 6325 6326 rc = pqi_wait_for_lun_reset_completion(ctrl_info, device, lun, &wait); 6327 if (rc == 0) 6328 rc = io_request->status; 6329 6330 pqi_free_io_request(io_request); 6331 6332 return rc; 6333} 6334 6335#define PQI_LUN_RESET_RETRIES 3 6336#define PQI_LUN_RESET_RETRY_INTERVAL_MSECS (10 * 1000) 6337#define PQI_LUN_RESET_PENDING_IO_TIMEOUT_MSECS (10 * 60 * 1000) 6338#define PQI_LUN_RESET_FAILED_PENDING_IO_TIMEOUT_MSECS (2 * 60 * 1000) 6339 6340static int pqi_lun_reset_with_retries(struct pqi_ctrl_info *ctrl_info, struct pqi_scsi_dev *device, u8 lun) 6341{ 6342 int reset_rc; 6343 int wait_rc; 6344 unsigned int retries; 6345 unsigned long timeout_msecs; 6346 6347 for (retries = 0;;) { 6348 reset_rc = pqi_lun_reset(ctrl_info, device, lun); 6349 if (reset_rc == 0 || reset_rc == -ENODEV || reset_rc == -ENXIO || ++retries > PQI_LUN_RESET_RETRIES) 6350 break; 6351 msleep(PQI_LUN_RESET_RETRY_INTERVAL_MSECS); 6352 } 6353 6354 timeout_msecs = reset_rc ? PQI_LUN_RESET_FAILED_PENDING_IO_TIMEOUT_MSECS : 6355 PQI_LUN_RESET_PENDING_IO_TIMEOUT_MSECS; 6356 6357 wait_rc = pqi_device_wait_for_pending_io(ctrl_info, device, lun, timeout_msecs); 6358 if (wait_rc && reset_rc == 0) 6359 reset_rc = wait_rc; 6360 6361 return reset_rc == 0 ? SUCCESS : FAILED; 6362} 6363 6364static int pqi_device_reset(struct pqi_ctrl_info *ctrl_info, struct pqi_scsi_dev *device, u8 lun) 6365{ 6366 int rc; 6367 6368 pqi_ctrl_block_requests(ctrl_info); 6369 pqi_ctrl_wait_until_quiesced(ctrl_info); 6370 pqi_fail_io_queued_for_device(ctrl_info, device, lun); 6371 rc = pqi_wait_until_inbound_queues_empty(ctrl_info); 6372 pqi_device_reset_start(device, lun); 6373 pqi_ctrl_unblock_requests(ctrl_info); 6374 if (rc) 6375 rc = FAILED; 6376 else 6377 rc = pqi_lun_reset_with_retries(ctrl_info, device, lun); 6378 pqi_device_reset_done(device, lun); 6379 6380 return rc; 6381} 6382 6383static int pqi_device_reset_handler(struct pqi_ctrl_info *ctrl_info, struct pqi_scsi_dev *device, u8 lun, struct scsi_cmnd *scmd, u8 scsi_opcode) 6384{ 6385 int rc; 6386 6387 mutex_lock(&ctrl_info->lun_reset_mutex); 6388 6389 dev_err(&ctrl_info->pci_dev->dev, 6390 "resetting scsi %d:%d:%d:%u SCSI cmd at %p due to cmd opcode 0x%02x\n", 6391 ctrl_info->scsi_host->host_no, device->bus, device->target, lun, scmd, scsi_opcode); 6392 6393 pqi_check_ctrl_health(ctrl_info); 6394 if (pqi_ctrl_offline(ctrl_info)) 6395 rc = FAILED; 6396 else 6397 rc = pqi_device_reset(ctrl_info, device, lun); 6398 6399 dev_err(&ctrl_info->pci_dev->dev, 6400 "reset of scsi %d:%d:%d:%u: %s\n", 6401 ctrl_info->scsi_host->host_no, device->bus, device->target, lun, 6402 rc == SUCCESS ? "SUCCESS" : "FAILED"); 6403 6404 mutex_unlock(&ctrl_info->lun_reset_mutex); 6405 6406 return rc; 6407} 6408 6409static int pqi_eh_device_reset_handler(struct scsi_cmnd *scmd) 6410{ 6411 struct Scsi_Host *shost; 6412 struct pqi_ctrl_info *ctrl_info; 6413 struct pqi_scsi_dev *device; 6414 u8 scsi_opcode; 6415 6416 shost = scmd->device->host; 6417 ctrl_info = shost_to_hba(shost); 6418 device = scmd->device->hostdata; 6419 scsi_opcode = scmd->cmd_len > 0 ? scmd->cmnd[0] : 0xff; 6420 6421 return pqi_device_reset_handler(ctrl_info, device, (u8)scmd->device->lun, scmd, scsi_opcode); 6422} 6423 6424static void pqi_tmf_worker(struct work_struct *work) 6425{ 6426 struct pqi_tmf_work *tmf_work; 6427 struct scsi_cmnd *scmd; 6428 6429 tmf_work = container_of(work, struct pqi_tmf_work, work_struct); 6430 scmd = (struct scsi_cmnd *)xchg(&tmf_work->scmd, NULL); 6431 6432 pqi_device_reset_handler(tmf_work->ctrl_info, tmf_work->device, tmf_work->lun, scmd, tmf_work->scsi_opcode); 6433} 6434 6435static int pqi_eh_abort_handler(struct scsi_cmnd *scmd) 6436{ 6437 struct Scsi_Host *shost; 6438 struct pqi_ctrl_info *ctrl_info; 6439 struct pqi_scsi_dev *device; 6440 struct pqi_tmf_work *tmf_work; 6441 DECLARE_COMPLETION_ONSTACK(wait); 6442 6443 shost = scmd->device->host; 6444 ctrl_info = shost_to_hba(shost); 6445 device = scmd->device->hostdata; 6446 6447 dev_err(&ctrl_info->pci_dev->dev, 6448 "attempting TASK ABORT on scsi %d:%d:%d:%d for SCSI cmd at %p\n", 6449 shost->host_no, device->bus, device->target, (int)scmd->device->lun, scmd); 6450 6451 if (cmpxchg(&scmd->host_scribble, PQI_NO_COMPLETION, (void *)&wait) == NULL) { 6452 dev_err(&ctrl_info->pci_dev->dev, 6453 "scsi %d:%d:%d:%d for SCSI cmd at %p already completed\n", 6454 shost->host_no, device->bus, device->target, (int)scmd->device->lun, scmd); 6455 scmd->result = DID_RESET << 16; 6456 goto out; 6457 } 6458 6459 tmf_work = &device->tmf_work[scmd->device->lun]; 6460 6461 if (cmpxchg(&tmf_work->scmd, NULL, scmd) == NULL) { 6462 tmf_work->ctrl_info = ctrl_info; 6463 tmf_work->device = device; 6464 tmf_work->lun = (u8)scmd->device->lun; 6465 tmf_work->scsi_opcode = scmd->cmd_len > 0 ? scmd->cmnd[0] : 0xff; 6466 schedule_work(&tmf_work->work_struct); 6467 } 6468 6469 wait_for_completion(&wait); 6470 6471 dev_err(&ctrl_info->pci_dev->dev, 6472 "TASK ABORT on scsi %d:%d:%d:%d for SCSI cmd at %p: SUCCESS\n", 6473 shost->host_no, device->bus, device->target, (int)scmd->device->lun, scmd); 6474 6475out: 6476 6477 return SUCCESS; 6478} 6479 6480static int pqi_slave_alloc(struct scsi_device *sdev) 6481{ 6482 struct pqi_scsi_dev *device; 6483 unsigned long flags; 6484 struct pqi_ctrl_info *ctrl_info; 6485 struct scsi_target *starget; 6486 struct sas_rphy *rphy; 6487 6488 ctrl_info = shost_to_hba(sdev->host); 6489 6490 spin_lock_irqsave(&ctrl_info->scsi_device_list_lock, flags); 6491 6492 if (sdev_channel(sdev) == PQI_PHYSICAL_DEVICE_BUS) { 6493 starget = scsi_target(sdev); 6494 rphy = target_to_rphy(starget); 6495 device = pqi_find_device_by_sas_rphy(ctrl_info, rphy); 6496 if (device) { 6497 if (device->target_lun_valid) { 6498 device->ignore_device = true; 6499 } else { 6500 device->target = sdev_id(sdev); 6501 device->lun = sdev->lun; 6502 device->target_lun_valid = true; 6503 } 6504 } 6505 } else { 6506 device = pqi_find_scsi_dev(ctrl_info, sdev_channel(sdev), 6507 sdev_id(sdev), sdev->lun); 6508 } 6509 6510 if (device) { 6511 sdev->hostdata = device; 6512 device->sdev = sdev; 6513 if (device->queue_depth) { 6514 device->advertised_queue_depth = device->queue_depth; 6515 scsi_change_queue_depth(sdev, 6516 device->advertised_queue_depth); 6517 } 6518 if (pqi_is_logical_device(device)) { 6519 pqi_disable_write_same(sdev); 6520 } else { 6521 sdev->allow_restart = 1; 6522 if (device->device_type == SA_DEVICE_TYPE_NVME) 6523 pqi_disable_write_same(sdev); 6524 } 6525 } 6526 6527 spin_unlock_irqrestore(&ctrl_info->scsi_device_list_lock, flags); 6528 6529 return 0; 6530} 6531 6532static void pqi_map_queues(struct Scsi_Host *shost) 6533{ 6534 struct pqi_ctrl_info *ctrl_info = shost_to_hba(shost); 6535 6536 if (!ctrl_info->disable_managed_interrupts) 6537 return blk_mq_pci_map_queues(&shost->tag_set.map[HCTX_TYPE_DEFAULT], 6538 ctrl_info->pci_dev, 0); 6539 else 6540 return blk_mq_map_queues(&shost->tag_set.map[HCTX_TYPE_DEFAULT]); 6541} 6542 6543static inline bool pqi_is_tape_changer_device(struct pqi_scsi_dev *device) 6544{ 6545 return device->devtype == TYPE_TAPE || device->devtype == TYPE_MEDIUM_CHANGER; 6546} 6547 6548static int pqi_slave_configure(struct scsi_device *sdev) 6549{ 6550 int rc = 0; 6551 struct pqi_scsi_dev *device; 6552 6553 device = sdev->hostdata; 6554 device->devtype = sdev->type; 6555 6556 if (pqi_is_tape_changer_device(device) && device->ignore_device) { 6557 rc = -ENXIO; 6558 device->ignore_device = false; 6559 } 6560 6561 return rc; 6562} 6563 6564static void pqi_slave_destroy(struct scsi_device *sdev) 6565{ 6566 struct pqi_ctrl_info *ctrl_info; 6567 struct pqi_scsi_dev *device; 6568 int mutex_acquired; 6569 unsigned long flags; 6570 6571 ctrl_info = shost_to_hba(sdev->host); 6572 6573 mutex_acquired = mutex_trylock(&ctrl_info->scan_mutex); 6574 if (!mutex_acquired) 6575 return; 6576 6577 device = sdev->hostdata; 6578 if (!device) { 6579 mutex_unlock(&ctrl_info->scan_mutex); 6580 return; 6581 } 6582 6583 device->lun_count--; 6584 if (device->lun_count > 0) { 6585 mutex_unlock(&ctrl_info->scan_mutex); 6586 return; 6587 } 6588 6589 spin_lock_irqsave(&ctrl_info->scsi_device_list_lock, flags); 6590 list_del(&device->scsi_device_list_entry); 6591 spin_unlock_irqrestore(&ctrl_info->scsi_device_list_lock, flags); 6592 6593 mutex_unlock(&ctrl_info->scan_mutex); 6594 6595 pqi_dev_info(ctrl_info, "removed", device); 6596 pqi_free_device(device); 6597} 6598 6599static int pqi_getpciinfo_ioctl(struct pqi_ctrl_info *ctrl_info, void __user *arg) 6600{ 6601 struct pci_dev *pci_dev; 6602 u32 subsystem_vendor; 6603 u32 subsystem_device; 6604 cciss_pci_info_struct pci_info; 6605 6606 if (!arg) 6607 return -EINVAL; 6608 6609 pci_dev = ctrl_info->pci_dev; 6610 6611 pci_info.domain = pci_domain_nr(pci_dev->bus); 6612 pci_info.bus = pci_dev->bus->number; 6613 pci_info.dev_fn = pci_dev->devfn; 6614 subsystem_vendor = pci_dev->subsystem_vendor; 6615 subsystem_device = pci_dev->subsystem_device; 6616 pci_info.board_id = ((subsystem_device << 16) & 0xffff0000) | subsystem_vendor; 6617 6618 if (copy_to_user(arg, &pci_info, sizeof(pci_info))) 6619 return -EFAULT; 6620 6621 return 0; 6622} 6623 6624static int pqi_getdrivver_ioctl(void __user *arg) 6625{ 6626 u32 version; 6627 6628 if (!arg) 6629 return -EINVAL; 6630 6631 version = (DRIVER_MAJOR << 28) | (DRIVER_MINOR << 24) | 6632 (DRIVER_RELEASE << 16) | DRIVER_REVISION; 6633 6634 if (copy_to_user(arg, &version, sizeof(version))) 6635 return -EFAULT; 6636 6637 return 0; 6638} 6639 6640struct ciss_error_info { 6641 u8 scsi_status; 6642 int command_status; 6643 size_t sense_data_length; 6644}; 6645 6646static void pqi_error_info_to_ciss(struct pqi_raid_error_info *pqi_error_info, 6647 struct ciss_error_info *ciss_error_info) 6648{ 6649 int ciss_cmd_status; 6650 size_t sense_data_length; 6651 6652 switch (pqi_error_info->data_out_result) { 6653 case PQI_DATA_IN_OUT_GOOD: 6654 ciss_cmd_status = CISS_CMD_STATUS_SUCCESS; 6655 break; 6656 case PQI_DATA_IN_OUT_UNDERFLOW: 6657 ciss_cmd_status = CISS_CMD_STATUS_DATA_UNDERRUN; 6658 break; 6659 case PQI_DATA_IN_OUT_BUFFER_OVERFLOW: 6660 ciss_cmd_status = CISS_CMD_STATUS_DATA_OVERRUN; 6661 break; 6662 case PQI_DATA_IN_OUT_PROTOCOL_ERROR: 6663 case PQI_DATA_IN_OUT_BUFFER_ERROR: 6664 case PQI_DATA_IN_OUT_BUFFER_OVERFLOW_DESCRIPTOR_AREA: 6665 case PQI_DATA_IN_OUT_BUFFER_OVERFLOW_BRIDGE: 6666 case PQI_DATA_IN_OUT_ERROR: 6667 ciss_cmd_status = CISS_CMD_STATUS_PROTOCOL_ERROR; 6668 break; 6669 case PQI_DATA_IN_OUT_HARDWARE_ERROR: 6670 case PQI_DATA_IN_OUT_PCIE_FABRIC_ERROR: 6671 case PQI_DATA_IN_OUT_PCIE_COMPLETION_TIMEOUT: 6672 case PQI_DATA_IN_OUT_PCIE_COMPLETER_ABORT_RECEIVED: 6673 case PQI_DATA_IN_OUT_PCIE_UNSUPPORTED_REQUEST_RECEIVED: 6674 case PQI_DATA_IN_OUT_PCIE_ECRC_CHECK_FAILED: 6675 case PQI_DATA_IN_OUT_PCIE_UNSUPPORTED_REQUEST: 6676 case PQI_DATA_IN_OUT_PCIE_ACS_VIOLATION: 6677 case PQI_DATA_IN_OUT_PCIE_TLP_PREFIX_BLOCKED: 6678 case PQI_DATA_IN_OUT_PCIE_POISONED_MEMORY_READ: 6679 ciss_cmd_status = CISS_CMD_STATUS_HARDWARE_ERROR; 6680 break; 6681 case PQI_DATA_IN_OUT_UNSOLICITED_ABORT: 6682 ciss_cmd_status = CISS_CMD_STATUS_UNSOLICITED_ABORT; 6683 break; 6684 case PQI_DATA_IN_OUT_ABORTED: 6685 ciss_cmd_status = CISS_CMD_STATUS_ABORTED; 6686 break; 6687 case PQI_DATA_IN_OUT_TIMEOUT: 6688 ciss_cmd_status = CISS_CMD_STATUS_TIMEOUT; 6689 break; 6690 default: 6691 ciss_cmd_status = CISS_CMD_STATUS_TARGET_STATUS; 6692 break; 6693 } 6694 6695 sense_data_length = 6696 get_unaligned_le16(&pqi_error_info->sense_data_length); 6697 if (sense_data_length == 0) 6698 sense_data_length = 6699 get_unaligned_le16(&pqi_error_info->response_data_length); 6700 if (sense_data_length) 6701 if (sense_data_length > sizeof(pqi_error_info->data)) 6702 sense_data_length = sizeof(pqi_error_info->data); 6703 6704 ciss_error_info->scsi_status = pqi_error_info->status; 6705 ciss_error_info->command_status = ciss_cmd_status; 6706 ciss_error_info->sense_data_length = sense_data_length; 6707} 6708 6709static int pqi_passthru_ioctl(struct pqi_ctrl_info *ctrl_info, void __user *arg) 6710{ 6711 int rc; 6712 char *kernel_buffer = NULL; 6713 u16 iu_length; 6714 size_t sense_data_length; 6715 IOCTL_Command_struct iocommand; 6716 struct pqi_raid_path_request request; 6717 struct pqi_raid_error_info pqi_error_info; 6718 struct ciss_error_info ciss_error_info; 6719 6720 if (pqi_ctrl_offline(ctrl_info)) 6721 return -ENXIO; 6722 if (pqi_ofa_in_progress(ctrl_info) && pqi_ctrl_blocked(ctrl_info)) 6723 return -EBUSY; 6724 if (!arg) 6725 return -EINVAL; 6726 if (!capable(CAP_SYS_RAWIO)) 6727 return -EPERM; 6728 if (copy_from_user(&iocommand, arg, sizeof(iocommand))) 6729 return -EFAULT; 6730 if (iocommand.buf_size < 1 && 6731 iocommand.Request.Type.Direction != XFER_NONE) 6732 return -EINVAL; 6733 if (iocommand.Request.CDBLen > sizeof(request.cdb)) 6734 return -EINVAL; 6735 if (iocommand.Request.Type.Type != TYPE_CMD) 6736 return -EINVAL; 6737 6738 switch (iocommand.Request.Type.Direction) { 6739 case XFER_NONE: 6740 case XFER_WRITE: 6741 case XFER_READ: 6742 case XFER_READ | XFER_WRITE: 6743 break; 6744 default: 6745 return -EINVAL; 6746 } 6747 6748 if (iocommand.buf_size > 0) { 6749 kernel_buffer = kmalloc(iocommand.buf_size, GFP_KERNEL); 6750 if (!kernel_buffer) 6751 return -ENOMEM; 6752 if (iocommand.Request.Type.Direction & XFER_WRITE) { 6753 if (copy_from_user(kernel_buffer, iocommand.buf, 6754 iocommand.buf_size)) { 6755 rc = -EFAULT; 6756 goto out; 6757 } 6758 } else { 6759 memset(kernel_buffer, 0, iocommand.buf_size); 6760 } 6761 } 6762 6763 memset(&request, 0, sizeof(request)); 6764 6765 request.header.iu_type = PQI_REQUEST_IU_RAID_PATH_IO; 6766 iu_length = offsetof(struct pqi_raid_path_request, sg_descriptors) - 6767 PQI_REQUEST_HEADER_LENGTH; 6768 memcpy(request.lun_number, iocommand.LUN_info.LunAddrBytes, 6769 sizeof(request.lun_number)); 6770 memcpy(request.cdb, iocommand.Request.CDB, iocommand.Request.CDBLen); 6771 request.additional_cdb_bytes_usage = SOP_ADDITIONAL_CDB_BYTES_0; 6772 6773 switch (iocommand.Request.Type.Direction) { 6774 case XFER_NONE: 6775 request.data_direction = SOP_NO_DIRECTION_FLAG; 6776 break; 6777 case XFER_WRITE: 6778 request.data_direction = SOP_WRITE_FLAG; 6779 break; 6780 case XFER_READ: 6781 request.data_direction = SOP_READ_FLAG; 6782 break; 6783 case XFER_READ | XFER_WRITE: 6784 request.data_direction = SOP_BIDIRECTIONAL; 6785 break; 6786 } 6787 6788 request.task_attribute = SOP_TASK_ATTRIBUTE_SIMPLE; 6789 6790 if (iocommand.buf_size > 0) { 6791 put_unaligned_le32(iocommand.buf_size, &request.buffer_length); 6792 6793 rc = pqi_map_single(ctrl_info->pci_dev, 6794 &request.sg_descriptors[0], kernel_buffer, 6795 iocommand.buf_size, DMA_BIDIRECTIONAL); 6796 if (rc) 6797 goto out; 6798 6799 iu_length += sizeof(request.sg_descriptors[0]); 6800 } 6801 6802 put_unaligned_le16(iu_length, &request.header.iu_length); 6803 6804 if (ctrl_info->raid_iu_timeout_supported) 6805 put_unaligned_le32(iocommand.Request.Timeout, &request.timeout); 6806 6807 rc = pqi_submit_raid_request_synchronous(ctrl_info, &request.header, 6808 PQI_SYNC_FLAGS_INTERRUPTABLE, &pqi_error_info); 6809 6810 if (iocommand.buf_size > 0) 6811 pqi_pci_unmap(ctrl_info->pci_dev, request.sg_descriptors, 1, 6812 DMA_BIDIRECTIONAL); 6813 6814 memset(&iocommand.error_info, 0, sizeof(iocommand.error_info)); 6815 6816 if (rc == 0) { 6817 pqi_error_info_to_ciss(&pqi_error_info, &ciss_error_info); 6818 iocommand.error_info.ScsiStatus = ciss_error_info.scsi_status; 6819 iocommand.error_info.CommandStatus = 6820 ciss_error_info.command_status; 6821 sense_data_length = ciss_error_info.sense_data_length; 6822 if (sense_data_length) { 6823 if (sense_data_length > 6824 sizeof(iocommand.error_info.SenseInfo)) 6825 sense_data_length = 6826 sizeof(iocommand.error_info.SenseInfo); 6827 memcpy(iocommand.error_info.SenseInfo, 6828 pqi_error_info.data, sense_data_length); 6829 iocommand.error_info.SenseLen = sense_data_length; 6830 } 6831 } 6832 6833 if (copy_to_user(arg, &iocommand, sizeof(iocommand))) { 6834 rc = -EFAULT; 6835 goto out; 6836 } 6837 6838 if (rc == 0 && iocommand.buf_size > 0 && 6839 (iocommand.Request.Type.Direction & XFER_READ)) { 6840 if (copy_to_user(iocommand.buf, kernel_buffer, 6841 iocommand.buf_size)) { 6842 rc = -EFAULT; 6843 } 6844 } 6845 6846out: 6847 kfree(kernel_buffer); 6848 6849 return rc; 6850} 6851 6852static int pqi_ioctl(struct scsi_device *sdev, unsigned int cmd, 6853 void __user *arg) 6854{ 6855 int rc; 6856 struct pqi_ctrl_info *ctrl_info; 6857 6858 ctrl_info = shost_to_hba(sdev->host); 6859 6860 switch (cmd) { 6861 case CCISS_DEREGDISK: 6862 case CCISS_REGNEWDISK: 6863 case CCISS_REGNEWD: 6864 rc = pqi_scan_scsi_devices(ctrl_info); 6865 break; 6866 case CCISS_GETPCIINFO: 6867 rc = pqi_getpciinfo_ioctl(ctrl_info, arg); 6868 break; 6869 case CCISS_GETDRIVVER: 6870 rc = pqi_getdrivver_ioctl(arg); 6871 break; 6872 case CCISS_PASSTHRU: 6873 rc = pqi_passthru_ioctl(ctrl_info, arg); 6874 break; 6875 default: 6876 rc = -EINVAL; 6877 break; 6878 } 6879 6880 return rc; 6881} 6882 6883static ssize_t pqi_firmware_version_show(struct device *dev, 6884 struct device_attribute *attr, char *buffer) 6885{ 6886 struct Scsi_Host *shost; 6887 struct pqi_ctrl_info *ctrl_info; 6888 6889 shost = class_to_shost(dev); 6890 ctrl_info = shost_to_hba(shost); 6891 6892 return scnprintf(buffer, PAGE_SIZE, "%s\n", ctrl_info->firmware_version); 6893} 6894 6895static ssize_t pqi_driver_version_show(struct device *dev, 6896 struct device_attribute *attr, char *buffer) 6897{ 6898 return scnprintf(buffer, PAGE_SIZE, "%s\n", DRIVER_VERSION BUILD_TIMESTAMP); 6899} 6900 6901static ssize_t pqi_serial_number_show(struct device *dev, 6902 struct device_attribute *attr, char *buffer) 6903{ 6904 struct Scsi_Host *shost; 6905 struct pqi_ctrl_info *ctrl_info; 6906 6907 shost = class_to_shost(dev); 6908 ctrl_info = shost_to_hba(shost); 6909 6910 return scnprintf(buffer, PAGE_SIZE, "%s\n", ctrl_info->serial_number); 6911} 6912 6913static ssize_t pqi_model_show(struct device *dev, 6914 struct device_attribute *attr, char *buffer) 6915{ 6916 struct Scsi_Host *shost; 6917 struct pqi_ctrl_info *ctrl_info; 6918 6919 shost = class_to_shost(dev); 6920 ctrl_info = shost_to_hba(shost); 6921 6922 return scnprintf(buffer, PAGE_SIZE, "%s\n", ctrl_info->model); 6923} 6924 6925static ssize_t pqi_vendor_show(struct device *dev, 6926 struct device_attribute *attr, char *buffer) 6927{ 6928 struct Scsi_Host *shost; 6929 struct pqi_ctrl_info *ctrl_info; 6930 6931 shost = class_to_shost(dev); 6932 ctrl_info = shost_to_hba(shost); 6933 6934 return scnprintf(buffer, PAGE_SIZE, "%s\n", ctrl_info->vendor); 6935} 6936 6937static ssize_t pqi_host_rescan_store(struct device *dev, 6938 struct device_attribute *attr, const char *buffer, size_t count) 6939{ 6940 struct Scsi_Host *shost = class_to_shost(dev); 6941 6942 pqi_scan_start(shost); 6943 6944 return count; 6945} 6946 6947static ssize_t pqi_lockup_action_show(struct device *dev, 6948 struct device_attribute *attr, char *buffer) 6949{ 6950 int count = 0; 6951 unsigned int i; 6952 6953 for (i = 0; i < ARRAY_SIZE(pqi_lockup_actions); i++) { 6954 if (pqi_lockup_actions[i].action == pqi_lockup_action) 6955 count += scnprintf(buffer + count, PAGE_SIZE - count, 6956 "[%s] ", pqi_lockup_actions[i].name); 6957 else 6958 count += scnprintf(buffer + count, PAGE_SIZE - count, 6959 "%s ", pqi_lockup_actions[i].name); 6960 } 6961 6962 count += scnprintf(buffer + count, PAGE_SIZE - count, "\n"); 6963 6964 return count; 6965} 6966 6967static ssize_t pqi_lockup_action_store(struct device *dev, 6968 struct device_attribute *attr, const char *buffer, size_t count) 6969{ 6970 unsigned int i; 6971 char *action_name; 6972 char action_name_buffer[32]; 6973 6974 strscpy(action_name_buffer, buffer, sizeof(action_name_buffer)); 6975 action_name = strstrip(action_name_buffer); 6976 6977 for (i = 0; i < ARRAY_SIZE(pqi_lockup_actions); i++) { 6978 if (strcmp(action_name, pqi_lockup_actions[i].name) == 0) { 6979 pqi_lockup_action = pqi_lockup_actions[i].action; 6980 return count; 6981 } 6982 } 6983 6984 return -EINVAL; 6985} 6986 6987static ssize_t pqi_host_enable_stream_detection_show(struct device *dev, 6988 struct device_attribute *attr, char *buffer) 6989{ 6990 struct Scsi_Host *shost = class_to_shost(dev); 6991 struct pqi_ctrl_info *ctrl_info = shost_to_hba(shost); 6992 6993 return scnprintf(buffer, 10, "%x\n", 6994 ctrl_info->enable_stream_detection); 6995} 6996 6997static ssize_t pqi_host_enable_stream_detection_store(struct device *dev, 6998 struct device_attribute *attr, const char *buffer, size_t count) 6999{ 7000 struct Scsi_Host *shost = class_to_shost(dev); 7001 struct pqi_ctrl_info *ctrl_info = shost_to_hba(shost); 7002 u8 set_stream_detection = 0; 7003 7004 if (kstrtou8(buffer, 0, &set_stream_detection)) 7005 return -EINVAL; 7006 7007 if (set_stream_detection > 0) 7008 set_stream_detection = 1; 7009 7010 ctrl_info->enable_stream_detection = set_stream_detection; 7011 7012 return count; 7013} 7014 7015static ssize_t pqi_host_enable_r5_writes_show(struct device *dev, 7016 struct device_attribute *attr, char *buffer) 7017{ 7018 struct Scsi_Host *shost = class_to_shost(dev); 7019 struct pqi_ctrl_info *ctrl_info = shost_to_hba(shost); 7020 7021 return scnprintf(buffer, 10, "%x\n", ctrl_info->enable_r5_writes); 7022} 7023 7024static ssize_t pqi_host_enable_r5_writes_store(struct device *dev, 7025 struct device_attribute *attr, const char *buffer, size_t count) 7026{ 7027 struct Scsi_Host *shost = class_to_shost(dev); 7028 struct pqi_ctrl_info *ctrl_info = shost_to_hba(shost); 7029 u8 set_r5_writes = 0; 7030 7031 if (kstrtou8(buffer, 0, &set_r5_writes)) 7032 return -EINVAL; 7033 7034 if (set_r5_writes > 0) 7035 set_r5_writes = 1; 7036 7037 ctrl_info->enable_r5_writes = set_r5_writes; 7038 7039 return count; 7040} 7041 7042static ssize_t pqi_host_enable_r6_writes_show(struct device *dev, 7043 struct device_attribute *attr, char *buffer) 7044{ 7045 struct Scsi_Host *shost = class_to_shost(dev); 7046 struct pqi_ctrl_info *ctrl_info = shost_to_hba(shost); 7047 7048 return scnprintf(buffer, 10, "%x\n", ctrl_info->enable_r6_writes); 7049} 7050 7051static ssize_t pqi_host_enable_r6_writes_store(struct device *dev, 7052 struct device_attribute *attr, const char *buffer, size_t count) 7053{ 7054 struct Scsi_Host *shost = class_to_shost(dev); 7055 struct pqi_ctrl_info *ctrl_info = shost_to_hba(shost); 7056 u8 set_r6_writes = 0; 7057 7058 if (kstrtou8(buffer, 0, &set_r6_writes)) 7059 return -EINVAL; 7060 7061 if (set_r6_writes > 0) 7062 set_r6_writes = 1; 7063 7064 ctrl_info->enable_r6_writes = set_r6_writes; 7065 7066 return count; 7067} 7068 7069static DEVICE_ATTR(driver_version, 0444, pqi_driver_version_show, NULL); 7070static DEVICE_ATTR(firmware_version, 0444, pqi_firmware_version_show, NULL); 7071static DEVICE_ATTR(model, 0444, pqi_model_show, NULL); 7072static DEVICE_ATTR(serial_number, 0444, pqi_serial_number_show, NULL); 7073static DEVICE_ATTR(vendor, 0444, pqi_vendor_show, NULL); 7074static DEVICE_ATTR(rescan, 0200, NULL, pqi_host_rescan_store); 7075static DEVICE_ATTR(lockup_action, 0644, pqi_lockup_action_show, 7076 pqi_lockup_action_store); 7077static DEVICE_ATTR(enable_stream_detection, 0644, 7078 pqi_host_enable_stream_detection_show, 7079 pqi_host_enable_stream_detection_store); 7080static DEVICE_ATTR(enable_r5_writes, 0644, 7081 pqi_host_enable_r5_writes_show, pqi_host_enable_r5_writes_store); 7082static DEVICE_ATTR(enable_r6_writes, 0644, 7083 pqi_host_enable_r6_writes_show, pqi_host_enable_r6_writes_store); 7084 7085static struct attribute *pqi_shost_attrs[] = { 7086 &dev_attr_driver_version.attr, 7087 &dev_attr_firmware_version.attr, 7088 &dev_attr_model.attr, 7089 &dev_attr_serial_number.attr, 7090 &dev_attr_vendor.attr, 7091 &dev_attr_rescan.attr, 7092 &dev_attr_lockup_action.attr, 7093 &dev_attr_enable_stream_detection.attr, 7094 &dev_attr_enable_r5_writes.attr, 7095 &dev_attr_enable_r6_writes.attr, 7096 NULL 7097}; 7098 7099ATTRIBUTE_GROUPS(pqi_shost); 7100 7101static ssize_t pqi_unique_id_show(struct device *dev, 7102 struct device_attribute *attr, char *buffer) 7103{ 7104 struct pqi_ctrl_info *ctrl_info; 7105 struct scsi_device *sdev; 7106 struct pqi_scsi_dev *device; 7107 unsigned long flags; 7108 u8 unique_id[16]; 7109 7110 sdev = to_scsi_device(dev); 7111 ctrl_info = shost_to_hba(sdev->host); 7112 7113 if (pqi_ctrl_offline(ctrl_info)) 7114 return -ENODEV; 7115 7116 spin_lock_irqsave(&ctrl_info->scsi_device_list_lock, flags); 7117 7118 device = sdev->hostdata; 7119 if (!device) { 7120 spin_unlock_irqrestore(&ctrl_info->scsi_device_list_lock, flags); 7121 return -ENODEV; 7122 } 7123 7124 if (device->is_physical_device) 7125 memcpy(unique_id, device->wwid, sizeof(device->wwid)); 7126 else 7127 memcpy(unique_id, device->volume_id, sizeof(device->volume_id)); 7128 7129 spin_unlock_irqrestore(&ctrl_info->scsi_device_list_lock, flags); 7130 7131 return scnprintf(buffer, PAGE_SIZE, 7132 "%02X%02X%02X%02X%02X%02X%02X%02X" 7133 "%02X%02X%02X%02X%02X%02X%02X%02X\n", 7134 unique_id[0], unique_id[1], unique_id[2], unique_id[3], 7135 unique_id[4], unique_id[5], unique_id[6], unique_id[7], 7136 unique_id[8], unique_id[9], unique_id[10], unique_id[11], 7137 unique_id[12], unique_id[13], unique_id[14], unique_id[15]); 7138} 7139 7140static ssize_t pqi_lunid_show(struct device *dev, 7141 struct device_attribute *attr, char *buffer) 7142{ 7143 struct pqi_ctrl_info *ctrl_info; 7144 struct scsi_device *sdev; 7145 struct pqi_scsi_dev *device; 7146 unsigned long flags; 7147 u8 lunid[8]; 7148 7149 sdev = to_scsi_device(dev); 7150 ctrl_info = shost_to_hba(sdev->host); 7151 7152 if (pqi_ctrl_offline(ctrl_info)) 7153 return -ENODEV; 7154 7155 spin_lock_irqsave(&ctrl_info->scsi_device_list_lock, flags); 7156 7157 device = sdev->hostdata; 7158 if (!device) { 7159 spin_unlock_irqrestore(&ctrl_info->scsi_device_list_lock, flags); 7160 return -ENODEV; 7161 } 7162 7163 memcpy(lunid, device->scsi3addr, sizeof(lunid)); 7164 7165 spin_unlock_irqrestore(&ctrl_info->scsi_device_list_lock, flags); 7166 7167 return scnprintf(buffer, PAGE_SIZE, "0x%8phN\n", lunid); 7168} 7169 7170#define MAX_PATHS 8 7171 7172static ssize_t pqi_path_info_show(struct device *dev, 7173 struct device_attribute *attr, char *buf) 7174{ 7175 struct pqi_ctrl_info *ctrl_info; 7176 struct scsi_device *sdev; 7177 struct pqi_scsi_dev *device; 7178 unsigned long flags; 7179 int i; 7180 int output_len = 0; 7181 u8 box; 7182 u8 bay; 7183 u8 path_map_index; 7184 char *active; 7185 u8 phys_connector[2]; 7186 7187 sdev = to_scsi_device(dev); 7188 ctrl_info = shost_to_hba(sdev->host); 7189 7190 if (pqi_ctrl_offline(ctrl_info)) 7191 return -ENODEV; 7192 7193 spin_lock_irqsave(&ctrl_info->scsi_device_list_lock, flags); 7194 7195 device = sdev->hostdata; 7196 if (!device) { 7197 spin_unlock_irqrestore(&ctrl_info->scsi_device_list_lock, flags); 7198 return -ENODEV; 7199 } 7200 7201 bay = device->bay; 7202 for (i = 0; i < MAX_PATHS; i++) { 7203 path_map_index = 1 << i; 7204 if (i == device->active_path_index) 7205 active = "Active"; 7206 else if (device->path_map & path_map_index) 7207 active = "Inactive"; 7208 else 7209 continue; 7210 7211 output_len += scnprintf(buf + output_len, 7212 PAGE_SIZE - output_len, 7213 "[%d:%d:%d:%d] %20.20s ", 7214 ctrl_info->scsi_host->host_no, 7215 device->bus, device->target, 7216 device->lun, 7217 scsi_device_type(device->devtype)); 7218 7219 if (device->devtype == TYPE_RAID || 7220 pqi_is_logical_device(device)) 7221 goto end_buffer; 7222 7223 memcpy(&phys_connector, &device->phys_connector[i], 7224 sizeof(phys_connector)); 7225 if (phys_connector[0] < '0') 7226 phys_connector[0] = '0'; 7227 if (phys_connector[1] < '0') 7228 phys_connector[1] = '0'; 7229 7230 output_len += scnprintf(buf + output_len, 7231 PAGE_SIZE - output_len, 7232 "PORT: %.2s ", phys_connector); 7233 7234 box = device->box[i]; 7235 if (box != 0 && box != 0xFF) 7236 output_len += scnprintf(buf + output_len, 7237 PAGE_SIZE - output_len, 7238 "BOX: %hhu ", box); 7239 7240 if ((device->devtype == TYPE_DISK || 7241 device->devtype == TYPE_ZBC) && 7242 pqi_expose_device(device)) 7243 output_len += scnprintf(buf + output_len, 7244 PAGE_SIZE - output_len, 7245 "BAY: %hhu ", bay); 7246 7247end_buffer: 7248 output_len += scnprintf(buf + output_len, 7249 PAGE_SIZE - output_len, 7250 "%s\n", active); 7251 } 7252 7253 spin_unlock_irqrestore(&ctrl_info->scsi_device_list_lock, flags); 7254 7255 return output_len; 7256} 7257 7258static ssize_t pqi_sas_address_show(struct device *dev, 7259 struct device_attribute *attr, char *buffer) 7260{ 7261 struct pqi_ctrl_info *ctrl_info; 7262 struct scsi_device *sdev; 7263 struct pqi_scsi_dev *device; 7264 unsigned long flags; 7265 u64 sas_address; 7266 7267 sdev = to_scsi_device(dev); 7268 ctrl_info = shost_to_hba(sdev->host); 7269 7270 if (pqi_ctrl_offline(ctrl_info)) 7271 return -ENODEV; 7272 7273 spin_lock_irqsave(&ctrl_info->scsi_device_list_lock, flags); 7274 7275 device = sdev->hostdata; 7276 if (!device) { 7277 spin_unlock_irqrestore(&ctrl_info->scsi_device_list_lock, flags); 7278 return -ENODEV; 7279 } 7280 7281 sas_address = device->sas_address; 7282 7283 spin_unlock_irqrestore(&ctrl_info->scsi_device_list_lock, flags); 7284 7285 return scnprintf(buffer, PAGE_SIZE, "0x%016llx\n", sas_address); 7286} 7287 7288static ssize_t pqi_ssd_smart_path_enabled_show(struct device *dev, 7289 struct device_attribute *attr, char *buffer) 7290{ 7291 struct pqi_ctrl_info *ctrl_info; 7292 struct scsi_device *sdev; 7293 struct pqi_scsi_dev *device; 7294 unsigned long flags; 7295 7296 sdev = to_scsi_device(dev); 7297 ctrl_info = shost_to_hba(sdev->host); 7298 7299 if (pqi_ctrl_offline(ctrl_info)) 7300 return -ENODEV; 7301 7302 spin_lock_irqsave(&ctrl_info->scsi_device_list_lock, flags); 7303 7304 device = sdev->hostdata; 7305 if (!device) { 7306 spin_unlock_irqrestore(&ctrl_info->scsi_device_list_lock, flags); 7307 return -ENODEV; 7308 } 7309 7310 buffer[0] = device->raid_bypass_enabled ? '1' : '0'; 7311 buffer[1] = '\n'; 7312 buffer[2] = '\0'; 7313 7314 spin_unlock_irqrestore(&ctrl_info->scsi_device_list_lock, flags); 7315 7316 return 2; 7317} 7318 7319static ssize_t pqi_raid_level_show(struct device *dev, 7320 struct device_attribute *attr, char *buffer) 7321{ 7322 struct pqi_ctrl_info *ctrl_info; 7323 struct scsi_device *sdev; 7324 struct pqi_scsi_dev *device; 7325 unsigned long flags; 7326 char *raid_level; 7327 7328 sdev = to_scsi_device(dev); 7329 ctrl_info = shost_to_hba(sdev->host); 7330 7331 if (pqi_ctrl_offline(ctrl_info)) 7332 return -ENODEV; 7333 7334 spin_lock_irqsave(&ctrl_info->scsi_device_list_lock, flags); 7335 7336 device = sdev->hostdata; 7337 if (!device) { 7338 spin_unlock_irqrestore(&ctrl_info->scsi_device_list_lock, flags); 7339 return -ENODEV; 7340 } 7341 7342 if (pqi_is_logical_device(device) && device->devtype == TYPE_DISK) 7343 raid_level = pqi_raid_level_to_string(device->raid_level); 7344 else 7345 raid_level = "N/A"; 7346 7347 spin_unlock_irqrestore(&ctrl_info->scsi_device_list_lock, flags); 7348 7349 return scnprintf(buffer, PAGE_SIZE, "%s\n", raid_level); 7350} 7351 7352static ssize_t pqi_raid_bypass_cnt_show(struct device *dev, 7353 struct device_attribute *attr, char *buffer) 7354{ 7355 struct pqi_ctrl_info *ctrl_info; 7356 struct scsi_device *sdev; 7357 struct pqi_scsi_dev *device; 7358 unsigned long flags; 7359 unsigned int raid_bypass_cnt; 7360 7361 sdev = to_scsi_device(dev); 7362 ctrl_info = shost_to_hba(sdev->host); 7363 7364 if (pqi_ctrl_offline(ctrl_info)) 7365 return -ENODEV; 7366 7367 spin_lock_irqsave(&ctrl_info->scsi_device_list_lock, flags); 7368 7369 device = sdev->hostdata; 7370 if (!device) { 7371 spin_unlock_irqrestore(&ctrl_info->scsi_device_list_lock, flags); 7372 return -ENODEV; 7373 } 7374 7375 raid_bypass_cnt = device->raid_bypass_cnt; 7376 7377 spin_unlock_irqrestore(&ctrl_info->scsi_device_list_lock, flags); 7378 7379 return scnprintf(buffer, PAGE_SIZE, "0x%x\n", raid_bypass_cnt); 7380} 7381 7382static ssize_t pqi_sas_ncq_prio_enable_show(struct device *dev, 7383 struct device_attribute *attr, char *buf) 7384{ 7385 struct pqi_ctrl_info *ctrl_info; 7386 struct scsi_device *sdev; 7387 struct pqi_scsi_dev *device; 7388 unsigned long flags; 7389 int output_len = 0; 7390 7391 sdev = to_scsi_device(dev); 7392 ctrl_info = shost_to_hba(sdev->host); 7393 7394 if (pqi_ctrl_offline(ctrl_info)) 7395 return -ENODEV; 7396 7397 spin_lock_irqsave(&ctrl_info->scsi_device_list_lock, flags); 7398 7399 device = sdev->hostdata; 7400 if (!device) { 7401 spin_unlock_irqrestore(&ctrl_info->scsi_device_list_lock, flags); 7402 return -ENODEV; 7403 } 7404 7405 output_len = snprintf(buf, PAGE_SIZE, "%d\n", 7406 device->ncq_prio_enable); 7407 spin_unlock_irqrestore(&ctrl_info->scsi_device_list_lock, flags); 7408 7409 return output_len; 7410} 7411 7412static ssize_t pqi_sas_ncq_prio_enable_store(struct device *dev, 7413 struct device_attribute *attr, 7414 const char *buf, size_t count) 7415{ 7416 struct pqi_ctrl_info *ctrl_info; 7417 struct scsi_device *sdev; 7418 struct pqi_scsi_dev *device; 7419 unsigned long flags; 7420 u8 ncq_prio_enable = 0; 7421 7422 if (kstrtou8(buf, 0, &ncq_prio_enable)) 7423 return -EINVAL; 7424 7425 sdev = to_scsi_device(dev); 7426 ctrl_info = shost_to_hba(sdev->host); 7427 7428 spin_lock_irqsave(&ctrl_info->scsi_device_list_lock, flags); 7429 7430 device = sdev->hostdata; 7431 7432 if (!device) { 7433 spin_unlock_irqrestore(&ctrl_info->scsi_device_list_lock, flags); 7434 return -ENODEV; 7435 } 7436 7437 if (!device->ncq_prio_support) { 7438 spin_unlock_irqrestore(&ctrl_info->scsi_device_list_lock, flags); 7439 return -EINVAL; 7440 } 7441 7442 device->ncq_prio_enable = ncq_prio_enable; 7443 7444 spin_unlock_irqrestore(&ctrl_info->scsi_device_list_lock, flags); 7445 7446 return strlen(buf); 7447} 7448 7449static ssize_t pqi_numa_node_show(struct device *dev, 7450 struct device_attribute *attr, char *buffer) 7451{ 7452 struct scsi_device *sdev; 7453 struct pqi_ctrl_info *ctrl_info; 7454 7455 sdev = to_scsi_device(dev); 7456 ctrl_info = shost_to_hba(sdev->host); 7457 7458 return scnprintf(buffer, PAGE_SIZE, "%d\n", ctrl_info->numa_node); 7459} 7460 7461static DEVICE_ATTR(lunid, 0444, pqi_lunid_show, NULL); 7462static DEVICE_ATTR(unique_id, 0444, pqi_unique_id_show, NULL); 7463static DEVICE_ATTR(path_info, 0444, pqi_path_info_show, NULL); 7464static DEVICE_ATTR(sas_address, 0444, pqi_sas_address_show, NULL); 7465static DEVICE_ATTR(ssd_smart_path_enabled, 0444, pqi_ssd_smart_path_enabled_show, NULL); 7466static DEVICE_ATTR(raid_level, 0444, pqi_raid_level_show, NULL); 7467static DEVICE_ATTR(raid_bypass_cnt, 0444, pqi_raid_bypass_cnt_show, NULL); 7468static DEVICE_ATTR(sas_ncq_prio_enable, 0644, 7469 pqi_sas_ncq_prio_enable_show, pqi_sas_ncq_prio_enable_store); 7470static DEVICE_ATTR(numa_node, 0444, pqi_numa_node_show, NULL); 7471 7472static struct attribute *pqi_sdev_attrs[] = { 7473 &dev_attr_lunid.attr, 7474 &dev_attr_unique_id.attr, 7475 &dev_attr_path_info.attr, 7476 &dev_attr_sas_address.attr, 7477 &dev_attr_ssd_smart_path_enabled.attr, 7478 &dev_attr_raid_level.attr, 7479 &dev_attr_raid_bypass_cnt.attr, 7480 &dev_attr_sas_ncq_prio_enable.attr, 7481 &dev_attr_numa_node.attr, 7482 NULL 7483}; 7484 7485ATTRIBUTE_GROUPS(pqi_sdev); 7486 7487static const struct scsi_host_template pqi_driver_template = { 7488 .module = THIS_MODULE, 7489 .name = DRIVER_NAME_SHORT, 7490 .proc_name = DRIVER_NAME_SHORT, 7491 .queuecommand = pqi_scsi_queue_command, 7492 .scan_start = pqi_scan_start, 7493 .scan_finished = pqi_scan_finished, 7494 .this_id = -1, 7495 .eh_device_reset_handler = pqi_eh_device_reset_handler, 7496 .eh_abort_handler = pqi_eh_abort_handler, 7497 .ioctl = pqi_ioctl, 7498 .slave_alloc = pqi_slave_alloc, 7499 .slave_configure = pqi_slave_configure, 7500 .slave_destroy = pqi_slave_destroy, 7501 .map_queues = pqi_map_queues, 7502 .sdev_groups = pqi_sdev_groups, 7503 .shost_groups = pqi_shost_groups, 7504 .cmd_size = sizeof(struct pqi_cmd_priv), 7505}; 7506 7507static int pqi_register_scsi(struct pqi_ctrl_info *ctrl_info) 7508{ 7509 int rc; 7510 struct Scsi_Host *shost; 7511 7512 shost = scsi_host_alloc(&pqi_driver_template, sizeof(ctrl_info)); 7513 if (!shost) { 7514 dev_err(&ctrl_info->pci_dev->dev, "scsi_host_alloc failed\n"); 7515 return -ENOMEM; 7516 } 7517 7518 shost->io_port = 0; 7519 shost->n_io_port = 0; 7520 shost->this_id = -1; 7521 shost->max_channel = PQI_MAX_BUS; 7522 shost->max_cmd_len = MAX_COMMAND_SIZE; 7523 shost->max_lun = PQI_MAX_LUNS_PER_DEVICE; 7524 shost->max_id = ~0; 7525 shost->max_sectors = ctrl_info->max_sectors; 7526 shost->can_queue = ctrl_info->scsi_ml_can_queue; 7527 shost->cmd_per_lun = shost->can_queue; 7528 shost->sg_tablesize = ctrl_info->sg_tablesize; 7529 shost->transportt = pqi_sas_transport_template; 7530 shost->irq = pci_irq_vector(ctrl_info->pci_dev, 0); 7531 shost->unique_id = shost->irq; 7532 shost->nr_hw_queues = ctrl_info->num_queue_groups; 7533 shost->host_tagset = 1; 7534 shost->hostdata[0] = (unsigned long)ctrl_info; 7535 7536 rc = scsi_add_host(shost, &ctrl_info->pci_dev->dev); 7537 if (rc) { 7538 dev_err(&ctrl_info->pci_dev->dev, "scsi_add_host failed\n"); 7539 goto free_host; 7540 } 7541 7542 rc = pqi_add_sas_host(shost, ctrl_info); 7543 if (rc) { 7544 dev_err(&ctrl_info->pci_dev->dev, "add SAS host failed\n"); 7545 goto remove_host; 7546 } 7547 7548 ctrl_info->scsi_host = shost; 7549 7550 return 0; 7551 7552remove_host: 7553 scsi_remove_host(shost); 7554free_host: 7555 scsi_host_put(shost); 7556 7557 return rc; 7558} 7559 7560static void pqi_unregister_scsi(struct pqi_ctrl_info *ctrl_info) 7561{ 7562 struct Scsi_Host *shost; 7563 7564 pqi_delete_sas_host(ctrl_info); 7565 7566 shost = ctrl_info->scsi_host; 7567 if (!shost) 7568 return; 7569 7570 scsi_remove_host(shost); 7571 scsi_host_put(shost); 7572} 7573 7574static int pqi_wait_for_pqi_reset_completion(struct pqi_ctrl_info *ctrl_info) 7575{ 7576 int rc = 0; 7577 struct pqi_device_registers __iomem *pqi_registers; 7578 unsigned long timeout; 7579 unsigned int timeout_msecs; 7580 union pqi_reset_register reset_reg; 7581 7582 pqi_registers = ctrl_info->pqi_registers; 7583 timeout_msecs = readw(&pqi_registers->max_reset_timeout) * 100; 7584 timeout = msecs_to_jiffies(timeout_msecs) + jiffies; 7585 7586 while (1) { 7587 msleep(PQI_RESET_POLL_INTERVAL_MSECS); 7588 reset_reg.all_bits = readl(&pqi_registers->device_reset); 7589 if (reset_reg.bits.reset_action == PQI_RESET_ACTION_COMPLETED) 7590 break; 7591 if (!sis_is_firmware_running(ctrl_info)) { 7592 rc = -ENXIO; 7593 break; 7594 } 7595 if (time_after(jiffies, timeout)) { 7596 rc = -ETIMEDOUT; 7597 break; 7598 } 7599 } 7600 7601 return rc; 7602} 7603 7604static int pqi_reset(struct pqi_ctrl_info *ctrl_info) 7605{ 7606 int rc; 7607 union pqi_reset_register reset_reg; 7608 7609 if (ctrl_info->pqi_reset_quiesce_supported) { 7610 rc = sis_pqi_reset_quiesce(ctrl_info); 7611 if (rc) { 7612 dev_err(&ctrl_info->pci_dev->dev, 7613 "PQI reset failed during quiesce with error %d\n", rc); 7614 return rc; 7615 } 7616 } 7617 7618 reset_reg.all_bits = 0; 7619 reset_reg.bits.reset_type = PQI_RESET_TYPE_HARD_RESET; 7620 reset_reg.bits.reset_action = PQI_RESET_ACTION_RESET; 7621 7622 writel(reset_reg.all_bits, &ctrl_info->pqi_registers->device_reset); 7623 7624 rc = pqi_wait_for_pqi_reset_completion(ctrl_info); 7625 if (rc) 7626 dev_err(&ctrl_info->pci_dev->dev, 7627 "PQI reset failed with error %d\n", rc); 7628 7629 return rc; 7630} 7631 7632static int pqi_get_ctrl_serial_number(struct pqi_ctrl_info *ctrl_info) 7633{ 7634 int rc; 7635 struct bmic_sense_subsystem_info *sense_info; 7636 7637 sense_info = kzalloc(sizeof(*sense_info), GFP_KERNEL); 7638 if (!sense_info) 7639 return -ENOMEM; 7640 7641 rc = pqi_sense_subsystem_info(ctrl_info, sense_info); 7642 if (rc) 7643 goto out; 7644 7645 memcpy(ctrl_info->serial_number, sense_info->ctrl_serial_number, 7646 sizeof(sense_info->ctrl_serial_number)); 7647 ctrl_info->serial_number[sizeof(sense_info->ctrl_serial_number)] = '\0'; 7648 7649out: 7650 kfree(sense_info); 7651 7652 return rc; 7653} 7654 7655static int pqi_get_ctrl_product_details(struct pqi_ctrl_info *ctrl_info) 7656{ 7657 int rc; 7658 struct bmic_identify_controller *identify; 7659 7660 identify = kmalloc(sizeof(*identify), GFP_KERNEL); 7661 if (!identify) 7662 return -ENOMEM; 7663 7664 rc = pqi_identify_controller(ctrl_info, identify); 7665 if (rc) 7666 goto out; 7667 7668 if (get_unaligned_le32(&identify->extra_controller_flags) & 7669 BMIC_IDENTIFY_EXTRA_FLAGS_LONG_FW_VERSION_SUPPORTED) { 7670 memcpy(ctrl_info->firmware_version, 7671 identify->firmware_version_long, 7672 sizeof(identify->firmware_version_long)); 7673 } else { 7674 memcpy(ctrl_info->firmware_version, 7675 identify->firmware_version_short, 7676 sizeof(identify->firmware_version_short)); 7677 ctrl_info->firmware_version 7678 [sizeof(identify->firmware_version_short)] = '\0'; 7679 snprintf(ctrl_info->firmware_version + 7680 strlen(ctrl_info->firmware_version), 7681 sizeof(ctrl_info->firmware_version) - 7682 sizeof(identify->firmware_version_short), 7683 "-%u", 7684 get_unaligned_le16(&identify->firmware_build_number)); 7685 } 7686 7687 memcpy(ctrl_info->model, identify->product_id, 7688 sizeof(identify->product_id)); 7689 ctrl_info->model[sizeof(identify->product_id)] = '\0'; 7690 7691 memcpy(ctrl_info->vendor, identify->vendor_id, 7692 sizeof(identify->vendor_id)); 7693 ctrl_info->vendor[sizeof(identify->vendor_id)] = '\0'; 7694 7695 dev_info(&ctrl_info->pci_dev->dev, 7696 "Firmware version: %s\n", ctrl_info->firmware_version); 7697 7698out: 7699 kfree(identify); 7700 7701 return rc; 7702} 7703 7704struct pqi_config_table_section_info { 7705 struct pqi_ctrl_info *ctrl_info; 7706 void *section; 7707 u32 section_offset; 7708 void __iomem *section_iomem_addr; 7709}; 7710 7711static inline bool pqi_is_firmware_feature_supported( 7712 struct pqi_config_table_firmware_features *firmware_features, 7713 unsigned int bit_position) 7714{ 7715 unsigned int byte_index; 7716 7717 byte_index = bit_position / BITS_PER_BYTE; 7718 7719 if (byte_index >= le16_to_cpu(firmware_features->num_elements)) 7720 return false; 7721 7722 return firmware_features->features_supported[byte_index] & 7723 (1 << (bit_position % BITS_PER_BYTE)) ? true : false; 7724} 7725 7726static inline bool pqi_is_firmware_feature_enabled( 7727 struct pqi_config_table_firmware_features *firmware_features, 7728 void __iomem *firmware_features_iomem_addr, 7729 unsigned int bit_position) 7730{ 7731 unsigned int byte_index; 7732 u8 __iomem *features_enabled_iomem_addr; 7733 7734 byte_index = (bit_position / BITS_PER_BYTE) + 7735 (le16_to_cpu(firmware_features->num_elements) * 2); 7736 7737 features_enabled_iomem_addr = firmware_features_iomem_addr + 7738 offsetof(struct pqi_config_table_firmware_features, 7739 features_supported) + byte_index; 7740 7741 return *((__force u8 *)features_enabled_iomem_addr) & 7742 (1 << (bit_position % BITS_PER_BYTE)) ? true : false; 7743} 7744 7745static inline void pqi_request_firmware_feature( 7746 struct pqi_config_table_firmware_features *firmware_features, 7747 unsigned int bit_position) 7748{ 7749 unsigned int byte_index; 7750 7751 byte_index = (bit_position / BITS_PER_BYTE) + 7752 le16_to_cpu(firmware_features->num_elements); 7753 7754 firmware_features->features_supported[byte_index] |= 7755 (1 << (bit_position % BITS_PER_BYTE)); 7756} 7757 7758static int pqi_config_table_update(struct pqi_ctrl_info *ctrl_info, 7759 u16 first_section, u16 last_section) 7760{ 7761 struct pqi_vendor_general_request request; 7762 7763 memset(&request, 0, sizeof(request)); 7764 7765 request.header.iu_type = PQI_REQUEST_IU_VENDOR_GENERAL; 7766 put_unaligned_le16(sizeof(request) - PQI_REQUEST_HEADER_LENGTH, 7767 &request.header.iu_length); 7768 put_unaligned_le16(PQI_VENDOR_GENERAL_CONFIG_TABLE_UPDATE, 7769 &request.function_code); 7770 put_unaligned_le16(first_section, 7771 &request.data.config_table_update.first_section); 7772 put_unaligned_le16(last_section, 7773 &request.data.config_table_update.last_section); 7774 7775 return pqi_submit_raid_request_synchronous(ctrl_info, &request.header, 0, NULL); 7776} 7777 7778static int pqi_enable_firmware_features(struct pqi_ctrl_info *ctrl_info, 7779 struct pqi_config_table_firmware_features *firmware_features, 7780 void __iomem *firmware_features_iomem_addr) 7781{ 7782 void *features_requested; 7783 void __iomem *features_requested_iomem_addr; 7784 void __iomem *host_max_known_feature_iomem_addr; 7785 7786 features_requested = firmware_features->features_supported + 7787 le16_to_cpu(firmware_features->num_elements); 7788 7789 features_requested_iomem_addr = firmware_features_iomem_addr + 7790 (features_requested - (void *)firmware_features); 7791 7792 memcpy_toio(features_requested_iomem_addr, features_requested, 7793 le16_to_cpu(firmware_features->num_elements)); 7794 7795 if (pqi_is_firmware_feature_supported(firmware_features, 7796 PQI_FIRMWARE_FEATURE_MAX_KNOWN_FEATURE)) { 7797 host_max_known_feature_iomem_addr = 7798 features_requested_iomem_addr + 7799 (le16_to_cpu(firmware_features->num_elements) * 2) + 7800 sizeof(__le16); 7801 writeb(PQI_FIRMWARE_FEATURE_MAXIMUM & 0xFF, host_max_known_feature_iomem_addr); 7802 writeb((PQI_FIRMWARE_FEATURE_MAXIMUM & 0xFF00) >> 8, host_max_known_feature_iomem_addr + 1); 7803 } 7804 7805 return pqi_config_table_update(ctrl_info, 7806 PQI_CONFIG_TABLE_SECTION_FIRMWARE_FEATURES, 7807 PQI_CONFIG_TABLE_SECTION_FIRMWARE_FEATURES); 7808} 7809 7810struct pqi_firmware_feature { 7811 char *feature_name; 7812 unsigned int feature_bit; 7813 bool supported; 7814 bool enabled; 7815 void (*feature_status)(struct pqi_ctrl_info *ctrl_info, 7816 struct pqi_firmware_feature *firmware_feature); 7817}; 7818 7819static void pqi_firmware_feature_status(struct pqi_ctrl_info *ctrl_info, 7820 struct pqi_firmware_feature *firmware_feature) 7821{ 7822 if (!firmware_feature->supported) { 7823 dev_info(&ctrl_info->pci_dev->dev, "%s not supported by controller\n", 7824 firmware_feature->feature_name); 7825 return; 7826 } 7827 7828 if (firmware_feature->enabled) { 7829 dev_info(&ctrl_info->pci_dev->dev, 7830 "%s enabled\n", firmware_feature->feature_name); 7831 return; 7832 } 7833 7834 dev_err(&ctrl_info->pci_dev->dev, "failed to enable %s\n", 7835 firmware_feature->feature_name); 7836} 7837 7838static void pqi_ctrl_update_feature_flags(struct pqi_ctrl_info *ctrl_info, 7839 struct pqi_firmware_feature *firmware_feature) 7840{ 7841 switch (firmware_feature->feature_bit) { 7842 case PQI_FIRMWARE_FEATURE_RAID_1_WRITE_BYPASS: 7843 ctrl_info->enable_r1_writes = firmware_feature->enabled; 7844 break; 7845 case PQI_FIRMWARE_FEATURE_RAID_5_WRITE_BYPASS: 7846 ctrl_info->enable_r5_writes = firmware_feature->enabled; 7847 break; 7848 case PQI_FIRMWARE_FEATURE_RAID_6_WRITE_BYPASS: 7849 ctrl_info->enable_r6_writes = firmware_feature->enabled; 7850 break; 7851 case PQI_FIRMWARE_FEATURE_SOFT_RESET_HANDSHAKE: 7852 ctrl_info->soft_reset_handshake_supported = 7853 firmware_feature->enabled && 7854 pqi_read_soft_reset_status(ctrl_info); 7855 break; 7856 case PQI_FIRMWARE_FEATURE_RAID_IU_TIMEOUT: 7857 ctrl_info->raid_iu_timeout_supported = firmware_feature->enabled; 7858 break; 7859 case PQI_FIRMWARE_FEATURE_TMF_IU_TIMEOUT: 7860 ctrl_info->tmf_iu_timeout_supported = firmware_feature->enabled; 7861 break; 7862 case PQI_FIRMWARE_FEATURE_FW_TRIAGE: 7863 ctrl_info->firmware_triage_supported = firmware_feature->enabled; 7864 pqi_save_fw_triage_setting(ctrl_info, firmware_feature->enabled); 7865 break; 7866 case PQI_FIRMWARE_FEATURE_RPL_EXTENDED_FORMAT_4_5: 7867 ctrl_info->rpl_extended_format_4_5_supported = firmware_feature->enabled; 7868 break; 7869 case PQI_FIRMWARE_FEATURE_MULTI_LUN_DEVICE_SUPPORT: 7870 ctrl_info->multi_lun_device_supported = firmware_feature->enabled; 7871 break; 7872 } 7873 7874 pqi_firmware_feature_status(ctrl_info, firmware_feature); 7875} 7876 7877static inline void pqi_firmware_feature_update(struct pqi_ctrl_info *ctrl_info, 7878 struct pqi_firmware_feature *firmware_feature) 7879{ 7880 if (firmware_feature->feature_status) 7881 firmware_feature->feature_status(ctrl_info, firmware_feature); 7882} 7883 7884static DEFINE_MUTEX(pqi_firmware_features_mutex); 7885 7886static struct pqi_firmware_feature pqi_firmware_features[] = { 7887 { 7888 .feature_name = "Online Firmware Activation", 7889 .feature_bit = PQI_FIRMWARE_FEATURE_OFA, 7890 .feature_status = pqi_firmware_feature_status, 7891 }, 7892 { 7893 .feature_name = "Serial Management Protocol", 7894 .feature_bit = PQI_FIRMWARE_FEATURE_SMP, 7895 .feature_status = pqi_firmware_feature_status, 7896 }, 7897 { 7898 .feature_name = "Maximum Known Feature", 7899 .feature_bit = PQI_FIRMWARE_FEATURE_MAX_KNOWN_FEATURE, 7900 .feature_status = pqi_firmware_feature_status, 7901 }, 7902 { 7903 .feature_name = "RAID 0 Read Bypass", 7904 .feature_bit = PQI_FIRMWARE_FEATURE_RAID_0_READ_BYPASS, 7905 .feature_status = pqi_firmware_feature_status, 7906 }, 7907 { 7908 .feature_name = "RAID 1 Read Bypass", 7909 .feature_bit = PQI_FIRMWARE_FEATURE_RAID_1_READ_BYPASS, 7910 .feature_status = pqi_firmware_feature_status, 7911 }, 7912 { 7913 .feature_name = "RAID 5 Read Bypass", 7914 .feature_bit = PQI_FIRMWARE_FEATURE_RAID_5_READ_BYPASS, 7915 .feature_status = pqi_firmware_feature_status, 7916 }, 7917 { 7918 .feature_name = "RAID 6 Read Bypass", 7919 .feature_bit = PQI_FIRMWARE_FEATURE_RAID_6_READ_BYPASS, 7920 .feature_status = pqi_firmware_feature_status, 7921 }, 7922 { 7923 .feature_name = "RAID 0 Write Bypass", 7924 .feature_bit = PQI_FIRMWARE_FEATURE_RAID_0_WRITE_BYPASS, 7925 .feature_status = pqi_firmware_feature_status, 7926 }, 7927 { 7928 .feature_name = "RAID 1 Write Bypass", 7929 .feature_bit = PQI_FIRMWARE_FEATURE_RAID_1_WRITE_BYPASS, 7930 .feature_status = pqi_ctrl_update_feature_flags, 7931 }, 7932 { 7933 .feature_name = "RAID 5 Write Bypass", 7934 .feature_bit = PQI_FIRMWARE_FEATURE_RAID_5_WRITE_BYPASS, 7935 .feature_status = pqi_ctrl_update_feature_flags, 7936 }, 7937 { 7938 .feature_name = "RAID 6 Write Bypass", 7939 .feature_bit = PQI_FIRMWARE_FEATURE_RAID_6_WRITE_BYPASS, 7940 .feature_status = pqi_ctrl_update_feature_flags, 7941 }, 7942 { 7943 .feature_name = "New Soft Reset Handshake", 7944 .feature_bit = PQI_FIRMWARE_FEATURE_SOFT_RESET_HANDSHAKE, 7945 .feature_status = pqi_ctrl_update_feature_flags, 7946 }, 7947 { 7948 .feature_name = "RAID IU Timeout", 7949 .feature_bit = PQI_FIRMWARE_FEATURE_RAID_IU_TIMEOUT, 7950 .feature_status = pqi_ctrl_update_feature_flags, 7951 }, 7952 { 7953 .feature_name = "TMF IU Timeout", 7954 .feature_bit = PQI_FIRMWARE_FEATURE_TMF_IU_TIMEOUT, 7955 .feature_status = pqi_ctrl_update_feature_flags, 7956 }, 7957 { 7958 .feature_name = "RAID Bypass on encrypted logical volumes on NVMe", 7959 .feature_bit = PQI_FIRMWARE_FEATURE_RAID_BYPASS_ON_ENCRYPTED_NVME, 7960 .feature_status = pqi_firmware_feature_status, 7961 }, 7962 { 7963 .feature_name = "Firmware Triage", 7964 .feature_bit = PQI_FIRMWARE_FEATURE_FW_TRIAGE, 7965 .feature_status = pqi_ctrl_update_feature_flags, 7966 }, 7967 { 7968 .feature_name = "RPL Extended Formats 4 and 5", 7969 .feature_bit = PQI_FIRMWARE_FEATURE_RPL_EXTENDED_FORMAT_4_5, 7970 .feature_status = pqi_ctrl_update_feature_flags, 7971 }, 7972 { 7973 .feature_name = "Multi-LUN Target", 7974 .feature_bit = PQI_FIRMWARE_FEATURE_MULTI_LUN_DEVICE_SUPPORT, 7975 .feature_status = pqi_ctrl_update_feature_flags, 7976 }, 7977}; 7978 7979static void pqi_process_firmware_features( 7980 struct pqi_config_table_section_info *section_info) 7981{ 7982 int rc; 7983 struct pqi_ctrl_info *ctrl_info; 7984 struct pqi_config_table_firmware_features *firmware_features; 7985 void __iomem *firmware_features_iomem_addr; 7986 unsigned int i; 7987 unsigned int num_features_supported; 7988 7989 ctrl_info = section_info->ctrl_info; 7990 firmware_features = section_info->section; 7991 firmware_features_iomem_addr = section_info->section_iomem_addr; 7992 7993 for (i = 0, num_features_supported = 0; 7994 i < ARRAY_SIZE(pqi_firmware_features); i++) { 7995 if (pqi_is_firmware_feature_supported(firmware_features, 7996 pqi_firmware_features[i].feature_bit)) { 7997 pqi_firmware_features[i].supported = true; 7998 num_features_supported++; 7999 } else { 8000 pqi_firmware_feature_update(ctrl_info, 8001 &pqi_firmware_features[i]); 8002 } 8003 } 8004 8005 if (num_features_supported == 0) 8006 return; 8007 8008 for (i = 0; i < ARRAY_SIZE(pqi_firmware_features); i++) { 8009 if (!pqi_firmware_features[i].supported) 8010 continue; 8011 pqi_request_firmware_feature(firmware_features, 8012 pqi_firmware_features[i].feature_bit); 8013 } 8014 8015 rc = pqi_enable_firmware_features(ctrl_info, firmware_features, 8016 firmware_features_iomem_addr); 8017 if (rc) { 8018 dev_err(&ctrl_info->pci_dev->dev, 8019 "failed to enable firmware features in PQI configuration table\n"); 8020 for (i = 0; i < ARRAY_SIZE(pqi_firmware_features); i++) { 8021 if (!pqi_firmware_features[i].supported) 8022 continue; 8023 pqi_firmware_feature_update(ctrl_info, 8024 &pqi_firmware_features[i]); 8025 } 8026 return; 8027 } 8028 8029 for (i = 0; i < ARRAY_SIZE(pqi_firmware_features); i++) { 8030 if (!pqi_firmware_features[i].supported) 8031 continue; 8032 if (pqi_is_firmware_feature_enabled(firmware_features, 8033 firmware_features_iomem_addr, 8034 pqi_firmware_features[i].feature_bit)) { 8035 pqi_firmware_features[i].enabled = true; 8036 } 8037 pqi_firmware_feature_update(ctrl_info, 8038 &pqi_firmware_features[i]); 8039 } 8040} 8041 8042static void pqi_init_firmware_features(void) 8043{ 8044 unsigned int i; 8045 8046 for (i = 0; i < ARRAY_SIZE(pqi_firmware_features); i++) { 8047 pqi_firmware_features[i].supported = false; 8048 pqi_firmware_features[i].enabled = false; 8049 } 8050} 8051 8052static void pqi_process_firmware_features_section( 8053 struct pqi_config_table_section_info *section_info) 8054{ 8055 mutex_lock(&pqi_firmware_features_mutex); 8056 pqi_init_firmware_features(); 8057 pqi_process_firmware_features(section_info); 8058 mutex_unlock(&pqi_firmware_features_mutex); 8059} 8060 8061/* 8062 * Reset all controller settings that can be initialized during the processing 8063 * of the PQI Configuration Table. 8064 */ 8065 8066static void pqi_ctrl_reset_config(struct pqi_ctrl_info *ctrl_info) 8067{ 8068 ctrl_info->heartbeat_counter = NULL; 8069 ctrl_info->soft_reset_status = NULL; 8070 ctrl_info->soft_reset_handshake_supported = false; 8071 ctrl_info->enable_r1_writes = false; 8072 ctrl_info->enable_r5_writes = false; 8073 ctrl_info->enable_r6_writes = false; 8074 ctrl_info->raid_iu_timeout_supported = false; 8075 ctrl_info->tmf_iu_timeout_supported = false; 8076 ctrl_info->firmware_triage_supported = false; 8077 ctrl_info->rpl_extended_format_4_5_supported = false; 8078 ctrl_info->multi_lun_device_supported = false; 8079} 8080 8081static int pqi_process_config_table(struct pqi_ctrl_info *ctrl_info) 8082{ 8083 u32 table_length; 8084 u32 section_offset; 8085 bool firmware_feature_section_present; 8086 void __iomem *table_iomem_addr; 8087 struct pqi_config_table *config_table; 8088 struct pqi_config_table_section_header *section; 8089 struct pqi_config_table_section_info section_info; 8090 struct pqi_config_table_section_info feature_section_info = {0}; 8091 8092 table_length = ctrl_info->config_table_length; 8093 if (table_length == 0) 8094 return 0; 8095 8096 config_table = kmalloc(table_length, GFP_KERNEL); 8097 if (!config_table) { 8098 dev_err(&ctrl_info->pci_dev->dev, 8099 "failed to allocate memory for PQI configuration table\n"); 8100 return -ENOMEM; 8101 } 8102 8103 /* 8104 * Copy the config table contents from I/O memory space into the 8105 * temporary buffer. 8106 */ 8107 table_iomem_addr = ctrl_info->iomem_base + ctrl_info->config_table_offset; 8108 memcpy_fromio(config_table, table_iomem_addr, table_length); 8109 8110 firmware_feature_section_present = false; 8111 section_info.ctrl_info = ctrl_info; 8112 section_offset = get_unaligned_le32(&config_table->first_section_offset); 8113 8114 while (section_offset) { 8115 section = (void *)config_table + section_offset; 8116 8117 section_info.section = section; 8118 section_info.section_offset = section_offset; 8119 section_info.section_iomem_addr = table_iomem_addr + section_offset; 8120 8121 switch (get_unaligned_le16(§ion->section_id)) { 8122 case PQI_CONFIG_TABLE_SECTION_FIRMWARE_FEATURES: 8123 firmware_feature_section_present = true; 8124 feature_section_info = section_info; 8125 break; 8126 case PQI_CONFIG_TABLE_SECTION_HEARTBEAT: 8127 if (pqi_disable_heartbeat) 8128 dev_warn(&ctrl_info->pci_dev->dev, 8129 "heartbeat disabled by module parameter\n"); 8130 else 8131 ctrl_info->heartbeat_counter = 8132 table_iomem_addr + 8133 section_offset + 8134 offsetof(struct pqi_config_table_heartbeat, 8135 heartbeat_counter); 8136 break; 8137 case PQI_CONFIG_TABLE_SECTION_SOFT_RESET: 8138 ctrl_info->soft_reset_status = 8139 table_iomem_addr + 8140 section_offset + 8141 offsetof(struct pqi_config_table_soft_reset, 8142 soft_reset_status); 8143 break; 8144 } 8145 8146 section_offset = get_unaligned_le16(§ion->next_section_offset); 8147 } 8148 8149 /* 8150 * We process the firmware feature section after all other sections 8151 * have been processed so that the feature bit callbacks can take 8152 * into account the settings configured by other sections. 8153 */ 8154 if (firmware_feature_section_present) 8155 pqi_process_firmware_features_section(&feature_section_info); 8156 8157 kfree(config_table); 8158 8159 return 0; 8160} 8161 8162/* Switches the controller from PQI mode back into SIS mode. */ 8163 8164static int pqi_revert_to_sis_mode(struct pqi_ctrl_info *ctrl_info) 8165{ 8166 int rc; 8167 8168 pqi_change_irq_mode(ctrl_info, IRQ_MODE_NONE); 8169 rc = pqi_reset(ctrl_info); 8170 if (rc) 8171 return rc; 8172 rc = sis_reenable_sis_mode(ctrl_info); 8173 if (rc) { 8174 dev_err(&ctrl_info->pci_dev->dev, 8175 "re-enabling SIS mode failed with error %d\n", rc); 8176 return rc; 8177 } 8178 pqi_save_ctrl_mode(ctrl_info, SIS_MODE); 8179 8180 return 0; 8181} 8182 8183/* 8184 * If the controller isn't already in SIS mode, this function forces it into 8185 * SIS mode. 8186 */ 8187 8188static int pqi_force_sis_mode(struct pqi_ctrl_info *ctrl_info) 8189{ 8190 if (!sis_is_firmware_running(ctrl_info)) 8191 return -ENXIO; 8192 8193 if (pqi_get_ctrl_mode(ctrl_info) == SIS_MODE) 8194 return 0; 8195 8196 if (sis_is_kernel_up(ctrl_info)) { 8197 pqi_save_ctrl_mode(ctrl_info, SIS_MODE); 8198 return 0; 8199 } 8200 8201 return pqi_revert_to_sis_mode(ctrl_info); 8202} 8203 8204static void pqi_perform_lockup_action(void) 8205{ 8206 switch (pqi_lockup_action) { 8207 case PANIC: 8208 panic("FATAL: Smart Family Controller lockup detected"); 8209 break; 8210 case REBOOT: 8211 emergency_restart(); 8212 break; 8213 case NONE: 8214 default: 8215 break; 8216 } 8217} 8218 8219static int pqi_ctrl_init(struct pqi_ctrl_info *ctrl_info) 8220{ 8221 int rc; 8222 u32 product_id; 8223 8224 if (reset_devices) { 8225 if (pqi_is_fw_triage_supported(ctrl_info)) { 8226 rc = sis_wait_for_fw_triage_completion(ctrl_info); 8227 if (rc) 8228 return rc; 8229 } 8230 sis_soft_reset(ctrl_info); 8231 ssleep(PQI_POST_RESET_DELAY_SECS); 8232 } else { 8233 rc = pqi_force_sis_mode(ctrl_info); 8234 if (rc) 8235 return rc; 8236 } 8237 8238 /* 8239 * Wait until the controller is ready to start accepting SIS 8240 * commands. 8241 */ 8242 rc = sis_wait_for_ctrl_ready(ctrl_info); 8243 if (rc) { 8244 if (reset_devices) { 8245 dev_err(&ctrl_info->pci_dev->dev, 8246 "kdump init failed with error %d\n", rc); 8247 pqi_lockup_action = REBOOT; 8248 pqi_perform_lockup_action(); 8249 } 8250 return rc; 8251 } 8252 8253 /* 8254 * Get the controller properties. This allows us to determine 8255 * whether or not it supports PQI mode. 8256 */ 8257 rc = sis_get_ctrl_properties(ctrl_info); 8258 if (rc) { 8259 dev_err(&ctrl_info->pci_dev->dev, 8260 "error obtaining controller properties\n"); 8261 return rc; 8262 } 8263 8264 rc = sis_get_pqi_capabilities(ctrl_info); 8265 if (rc) { 8266 dev_err(&ctrl_info->pci_dev->dev, 8267 "error obtaining controller capabilities\n"); 8268 return rc; 8269 } 8270 8271 product_id = sis_get_product_id(ctrl_info); 8272 ctrl_info->product_id = (u8)product_id; 8273 ctrl_info->product_revision = (u8)(product_id >> 8); 8274 8275 if (reset_devices) { 8276 if (ctrl_info->max_outstanding_requests > 8277 PQI_MAX_OUTSTANDING_REQUESTS_KDUMP) 8278 ctrl_info->max_outstanding_requests = 8279 PQI_MAX_OUTSTANDING_REQUESTS_KDUMP; 8280 } else { 8281 if (ctrl_info->max_outstanding_requests > 8282 PQI_MAX_OUTSTANDING_REQUESTS) 8283 ctrl_info->max_outstanding_requests = 8284 PQI_MAX_OUTSTANDING_REQUESTS; 8285 } 8286 8287 pqi_calculate_io_resources(ctrl_info); 8288 8289 rc = pqi_alloc_error_buffer(ctrl_info); 8290 if (rc) { 8291 dev_err(&ctrl_info->pci_dev->dev, 8292 "failed to allocate PQI error buffer\n"); 8293 return rc; 8294 } 8295 8296 /* 8297 * If the function we are about to call succeeds, the 8298 * controller will transition from legacy SIS mode 8299 * into PQI mode. 8300 */ 8301 rc = sis_init_base_struct_addr(ctrl_info); 8302 if (rc) { 8303 dev_err(&ctrl_info->pci_dev->dev, 8304 "error initializing PQI mode\n"); 8305 return rc; 8306 } 8307 8308 /* Wait for the controller to complete the SIS -> PQI transition. */ 8309 rc = pqi_wait_for_pqi_mode_ready(ctrl_info); 8310 if (rc) { 8311 dev_err(&ctrl_info->pci_dev->dev, 8312 "transition to PQI mode failed\n"); 8313 return rc; 8314 } 8315 8316 /* From here on, we are running in PQI mode. */ 8317 ctrl_info->pqi_mode_enabled = true; 8318 pqi_save_ctrl_mode(ctrl_info, PQI_MODE); 8319 8320 rc = pqi_alloc_admin_queues(ctrl_info); 8321 if (rc) { 8322 dev_err(&ctrl_info->pci_dev->dev, 8323 "failed to allocate admin queues\n"); 8324 return rc; 8325 } 8326 8327 rc = pqi_create_admin_queues(ctrl_info); 8328 if (rc) { 8329 dev_err(&ctrl_info->pci_dev->dev, 8330 "error creating admin queues\n"); 8331 return rc; 8332 } 8333 8334 rc = pqi_report_device_capability(ctrl_info); 8335 if (rc) { 8336 dev_err(&ctrl_info->pci_dev->dev, 8337 "obtaining device capability failed\n"); 8338 return rc; 8339 } 8340 8341 rc = pqi_validate_device_capability(ctrl_info); 8342 if (rc) 8343 return rc; 8344 8345 pqi_calculate_queue_resources(ctrl_info); 8346 8347 rc = pqi_enable_msix_interrupts(ctrl_info); 8348 if (rc) 8349 return rc; 8350 8351 if (ctrl_info->num_msix_vectors_enabled < ctrl_info->num_queue_groups) { 8352 ctrl_info->max_msix_vectors = 8353 ctrl_info->num_msix_vectors_enabled; 8354 pqi_calculate_queue_resources(ctrl_info); 8355 } 8356 8357 rc = pqi_alloc_io_resources(ctrl_info); 8358 if (rc) 8359 return rc; 8360 8361 rc = pqi_alloc_operational_queues(ctrl_info); 8362 if (rc) { 8363 dev_err(&ctrl_info->pci_dev->dev, 8364 "failed to allocate operational queues\n"); 8365 return rc; 8366 } 8367 8368 pqi_init_operational_queues(ctrl_info); 8369 8370 rc = pqi_create_queues(ctrl_info); 8371 if (rc) 8372 return rc; 8373 8374 rc = pqi_request_irqs(ctrl_info); 8375 if (rc) 8376 return rc; 8377 8378 pqi_change_irq_mode(ctrl_info, IRQ_MODE_MSIX); 8379 8380 ctrl_info->controller_online = true; 8381 8382 rc = pqi_process_config_table(ctrl_info); 8383 if (rc) 8384 return rc; 8385 8386 pqi_start_heartbeat_timer(ctrl_info); 8387 8388 if (ctrl_info->enable_r5_writes || ctrl_info->enable_r6_writes) { 8389 rc = pqi_get_advanced_raid_bypass_config(ctrl_info); 8390 if (rc) { /* Supported features not returned correctly. */ 8391 dev_err(&ctrl_info->pci_dev->dev, 8392 "error obtaining advanced RAID bypass configuration\n"); 8393 return rc; 8394 } 8395 ctrl_info->ciss_report_log_flags |= 8396 CISS_REPORT_LOG_FLAG_DRIVE_TYPE_MIX; 8397 } 8398 8399 rc = pqi_enable_events(ctrl_info); 8400 if (rc) { 8401 dev_err(&ctrl_info->pci_dev->dev, 8402 "error enabling events\n"); 8403 return rc; 8404 } 8405 8406 /* Register with the SCSI subsystem. */ 8407 rc = pqi_register_scsi(ctrl_info); 8408 if (rc) 8409 return rc; 8410 8411 rc = pqi_get_ctrl_product_details(ctrl_info); 8412 if (rc) { 8413 dev_err(&ctrl_info->pci_dev->dev, 8414 "error obtaining product details\n"); 8415 return rc; 8416 } 8417 8418 rc = pqi_get_ctrl_serial_number(ctrl_info); 8419 if (rc) { 8420 dev_err(&ctrl_info->pci_dev->dev, 8421 "error obtaining ctrl serial number\n"); 8422 return rc; 8423 } 8424 8425 rc = pqi_set_diag_rescan(ctrl_info); 8426 if (rc) { 8427 dev_err(&ctrl_info->pci_dev->dev, 8428 "error enabling multi-lun rescan\n"); 8429 return rc; 8430 } 8431 8432 rc = pqi_write_driver_version_to_host_wellness(ctrl_info); 8433 if (rc) { 8434 dev_err(&ctrl_info->pci_dev->dev, 8435 "error updating host wellness\n"); 8436 return rc; 8437 } 8438 8439 pqi_schedule_update_time_worker(ctrl_info); 8440 8441 pqi_scan_scsi_devices(ctrl_info); 8442 8443 return 0; 8444} 8445 8446static void pqi_reinit_queues(struct pqi_ctrl_info *ctrl_info) 8447{ 8448 unsigned int i; 8449 struct pqi_admin_queues *admin_queues; 8450 struct pqi_event_queue *event_queue; 8451 8452 admin_queues = &ctrl_info->admin_queues; 8453 admin_queues->iq_pi_copy = 0; 8454 admin_queues->oq_ci_copy = 0; 8455 writel(0, admin_queues->oq_pi); 8456 8457 for (i = 0; i < ctrl_info->num_queue_groups; i++) { 8458 ctrl_info->queue_groups[i].iq_pi_copy[RAID_PATH] = 0; 8459 ctrl_info->queue_groups[i].iq_pi_copy[AIO_PATH] = 0; 8460 ctrl_info->queue_groups[i].oq_ci_copy = 0; 8461 8462 writel(0, ctrl_info->queue_groups[i].iq_ci[RAID_PATH]); 8463 writel(0, ctrl_info->queue_groups[i].iq_ci[AIO_PATH]); 8464 writel(0, ctrl_info->queue_groups[i].oq_pi); 8465 } 8466 8467 event_queue = &ctrl_info->event_queue; 8468 writel(0, event_queue->oq_pi); 8469 event_queue->oq_ci_copy = 0; 8470} 8471 8472static int pqi_ctrl_init_resume(struct pqi_ctrl_info *ctrl_info) 8473{ 8474 int rc; 8475 8476 rc = pqi_force_sis_mode(ctrl_info); 8477 if (rc) 8478 return rc; 8479 8480 /* 8481 * Wait until the controller is ready to start accepting SIS 8482 * commands. 8483 */ 8484 rc = sis_wait_for_ctrl_ready_resume(ctrl_info); 8485 if (rc) 8486 return rc; 8487 8488 /* 8489 * Get the controller properties. This allows us to determine 8490 * whether or not it supports PQI mode. 8491 */ 8492 rc = sis_get_ctrl_properties(ctrl_info); 8493 if (rc) { 8494 dev_err(&ctrl_info->pci_dev->dev, 8495 "error obtaining controller properties\n"); 8496 return rc; 8497 } 8498 8499 rc = sis_get_pqi_capabilities(ctrl_info); 8500 if (rc) { 8501 dev_err(&ctrl_info->pci_dev->dev, 8502 "error obtaining controller capabilities\n"); 8503 return rc; 8504 } 8505 8506 /* 8507 * If the function we are about to call succeeds, the 8508 * controller will transition from legacy SIS mode 8509 * into PQI mode. 8510 */ 8511 rc = sis_init_base_struct_addr(ctrl_info); 8512 if (rc) { 8513 dev_err(&ctrl_info->pci_dev->dev, 8514 "error initializing PQI mode\n"); 8515 return rc; 8516 } 8517 8518 /* Wait for the controller to complete the SIS -> PQI transition. */ 8519 rc = pqi_wait_for_pqi_mode_ready(ctrl_info); 8520 if (rc) { 8521 dev_err(&ctrl_info->pci_dev->dev, 8522 "transition to PQI mode failed\n"); 8523 return rc; 8524 } 8525 8526 /* From here on, we are running in PQI mode. */ 8527 ctrl_info->pqi_mode_enabled = true; 8528 pqi_save_ctrl_mode(ctrl_info, PQI_MODE); 8529 8530 pqi_reinit_queues(ctrl_info); 8531 8532 rc = pqi_create_admin_queues(ctrl_info); 8533 if (rc) { 8534 dev_err(&ctrl_info->pci_dev->dev, 8535 "error creating admin queues\n"); 8536 return rc; 8537 } 8538 8539 rc = pqi_create_queues(ctrl_info); 8540 if (rc) 8541 return rc; 8542 8543 pqi_change_irq_mode(ctrl_info, IRQ_MODE_MSIX); 8544 8545 ctrl_info->controller_online = true; 8546 pqi_ctrl_unblock_requests(ctrl_info); 8547 8548 pqi_ctrl_reset_config(ctrl_info); 8549 8550 rc = pqi_process_config_table(ctrl_info); 8551 if (rc) 8552 return rc; 8553 8554 pqi_start_heartbeat_timer(ctrl_info); 8555 8556 if (ctrl_info->enable_r5_writes || ctrl_info->enable_r6_writes) { 8557 rc = pqi_get_advanced_raid_bypass_config(ctrl_info); 8558 if (rc) { 8559 dev_err(&ctrl_info->pci_dev->dev, 8560 "error obtaining advanced RAID bypass configuration\n"); 8561 return rc; 8562 } 8563 ctrl_info->ciss_report_log_flags |= 8564 CISS_REPORT_LOG_FLAG_DRIVE_TYPE_MIX; 8565 } 8566 8567 rc = pqi_enable_events(ctrl_info); 8568 if (rc) { 8569 dev_err(&ctrl_info->pci_dev->dev, 8570 "error enabling events\n"); 8571 return rc; 8572 } 8573 8574 rc = pqi_get_ctrl_product_details(ctrl_info); 8575 if (rc) { 8576 dev_err(&ctrl_info->pci_dev->dev, 8577 "error obtaining product details\n"); 8578 return rc; 8579 } 8580 8581 rc = pqi_set_diag_rescan(ctrl_info); 8582 if (rc) { 8583 dev_err(&ctrl_info->pci_dev->dev, 8584 "error enabling multi-lun rescan\n"); 8585 return rc; 8586 } 8587 8588 rc = pqi_write_driver_version_to_host_wellness(ctrl_info); 8589 if (rc) { 8590 dev_err(&ctrl_info->pci_dev->dev, 8591 "error updating host wellness\n"); 8592 return rc; 8593 } 8594 8595 if (pqi_ofa_in_progress(ctrl_info)) 8596 pqi_ctrl_unblock_scan(ctrl_info); 8597 8598 pqi_scan_scsi_devices(ctrl_info); 8599 8600 return 0; 8601} 8602 8603static inline int pqi_set_pcie_completion_timeout(struct pci_dev *pci_dev, u16 timeout) 8604{ 8605 int rc; 8606 8607 rc = pcie_capability_clear_and_set_word(pci_dev, PCI_EXP_DEVCTL2, 8608 PCI_EXP_DEVCTL2_COMP_TIMEOUT, timeout); 8609 8610 return pcibios_err_to_errno(rc); 8611} 8612 8613static int pqi_pci_init(struct pqi_ctrl_info *ctrl_info) 8614{ 8615 int rc; 8616 u64 mask; 8617 8618 rc = pci_enable_device(ctrl_info->pci_dev); 8619 if (rc) { 8620 dev_err(&ctrl_info->pci_dev->dev, 8621 "failed to enable PCI device\n"); 8622 return rc; 8623 } 8624 8625 if (sizeof(dma_addr_t) > 4) 8626 mask = DMA_BIT_MASK(64); 8627 else 8628 mask = DMA_BIT_MASK(32); 8629 8630 rc = dma_set_mask_and_coherent(&ctrl_info->pci_dev->dev, mask); 8631 if (rc) { 8632 dev_err(&ctrl_info->pci_dev->dev, "failed to set DMA mask\n"); 8633 goto disable_device; 8634 } 8635 8636 rc = pci_request_regions(ctrl_info->pci_dev, DRIVER_NAME_SHORT); 8637 if (rc) { 8638 dev_err(&ctrl_info->pci_dev->dev, 8639 "failed to obtain PCI resources\n"); 8640 goto disable_device; 8641 } 8642 8643 ctrl_info->iomem_base = ioremap(pci_resource_start( 8644 ctrl_info->pci_dev, 0), 8645 pci_resource_len(ctrl_info->pci_dev, 0)); 8646 if (!ctrl_info->iomem_base) { 8647 dev_err(&ctrl_info->pci_dev->dev, 8648 "failed to map memory for controller registers\n"); 8649 rc = -ENOMEM; 8650 goto release_regions; 8651 } 8652 8653#define PCI_EXP_COMP_TIMEOUT_65_TO_210_MS 0x6 8654 8655 /* Increase the PCIe completion timeout. */ 8656 rc = pqi_set_pcie_completion_timeout(ctrl_info->pci_dev, 8657 PCI_EXP_COMP_TIMEOUT_65_TO_210_MS); 8658 if (rc) { 8659 dev_err(&ctrl_info->pci_dev->dev, 8660 "failed to set PCIe completion timeout\n"); 8661 goto release_regions; 8662 } 8663 8664 /* Enable bus mastering. */ 8665 pci_set_master(ctrl_info->pci_dev); 8666 8667 ctrl_info->registers = ctrl_info->iomem_base; 8668 ctrl_info->pqi_registers = &ctrl_info->registers->pqi_registers; 8669 8670 pci_set_drvdata(ctrl_info->pci_dev, ctrl_info); 8671 8672 return 0; 8673 8674release_regions: 8675 pci_release_regions(ctrl_info->pci_dev); 8676disable_device: 8677 pci_disable_device(ctrl_info->pci_dev); 8678 8679 return rc; 8680} 8681 8682static void pqi_cleanup_pci_init(struct pqi_ctrl_info *ctrl_info) 8683{ 8684 iounmap(ctrl_info->iomem_base); 8685 pci_release_regions(ctrl_info->pci_dev); 8686 if (pci_is_enabled(ctrl_info->pci_dev)) 8687 pci_disable_device(ctrl_info->pci_dev); 8688 pci_set_drvdata(ctrl_info->pci_dev, NULL); 8689} 8690 8691static struct pqi_ctrl_info *pqi_alloc_ctrl_info(int numa_node) 8692{ 8693 struct pqi_ctrl_info *ctrl_info; 8694 8695 ctrl_info = kzalloc_node(sizeof(struct pqi_ctrl_info), 8696 GFP_KERNEL, numa_node); 8697 if (!ctrl_info) 8698 return NULL; 8699 8700 mutex_init(&ctrl_info->scan_mutex); 8701 mutex_init(&ctrl_info->lun_reset_mutex); 8702 mutex_init(&ctrl_info->ofa_mutex); 8703 8704 INIT_LIST_HEAD(&ctrl_info->scsi_device_list); 8705 spin_lock_init(&ctrl_info->scsi_device_list_lock); 8706 8707 INIT_WORK(&ctrl_info->event_work, pqi_event_worker); 8708 atomic_set(&ctrl_info->num_interrupts, 0); 8709 8710 INIT_DELAYED_WORK(&ctrl_info->rescan_work, pqi_rescan_worker); 8711 INIT_DELAYED_WORK(&ctrl_info->update_time_work, pqi_update_time_worker); 8712 8713 timer_setup(&ctrl_info->heartbeat_timer, pqi_heartbeat_timer_handler, 0); 8714 INIT_WORK(&ctrl_info->ctrl_offline_work, pqi_ctrl_offline_worker); 8715 8716 INIT_WORK(&ctrl_info->ofa_memory_alloc_work, pqi_ofa_memory_alloc_worker); 8717 INIT_WORK(&ctrl_info->ofa_quiesce_work, pqi_ofa_quiesce_worker); 8718 8719 sema_init(&ctrl_info->sync_request_sem, 8720 PQI_RESERVED_IO_SLOTS_SYNCHRONOUS_REQUESTS); 8721 init_waitqueue_head(&ctrl_info->block_requests_wait); 8722 8723 ctrl_info->ctrl_id = atomic_inc_return(&pqi_controller_count) - 1; 8724 ctrl_info->irq_mode = IRQ_MODE_NONE; 8725 ctrl_info->max_msix_vectors = PQI_MAX_MSIX_VECTORS; 8726 8727 ctrl_info->ciss_report_log_flags = CISS_REPORT_LOG_FLAG_UNIQUE_LUN_ID; 8728 ctrl_info->max_transfer_encrypted_sas_sata = 8729 PQI_DEFAULT_MAX_TRANSFER_ENCRYPTED_SAS_SATA; 8730 ctrl_info->max_transfer_encrypted_nvme = 8731 PQI_DEFAULT_MAX_TRANSFER_ENCRYPTED_NVME; 8732 ctrl_info->max_write_raid_5_6 = PQI_DEFAULT_MAX_WRITE_RAID_5_6; 8733 ctrl_info->max_write_raid_1_10_2drive = ~0; 8734 ctrl_info->max_write_raid_1_10_3drive = ~0; 8735 ctrl_info->disable_managed_interrupts = pqi_disable_managed_interrupts; 8736 8737 return ctrl_info; 8738} 8739 8740static inline void pqi_free_ctrl_info(struct pqi_ctrl_info *ctrl_info) 8741{ 8742 kfree(ctrl_info); 8743} 8744 8745static void pqi_free_interrupts(struct pqi_ctrl_info *ctrl_info) 8746{ 8747 pqi_free_irqs(ctrl_info); 8748 pqi_disable_msix_interrupts(ctrl_info); 8749} 8750 8751static void pqi_free_ctrl_resources(struct pqi_ctrl_info *ctrl_info) 8752{ 8753 pqi_free_interrupts(ctrl_info); 8754 if (ctrl_info->queue_memory_base) 8755 dma_free_coherent(&ctrl_info->pci_dev->dev, 8756 ctrl_info->queue_memory_length, 8757 ctrl_info->queue_memory_base, 8758 ctrl_info->queue_memory_base_dma_handle); 8759 if (ctrl_info->admin_queue_memory_base) 8760 dma_free_coherent(&ctrl_info->pci_dev->dev, 8761 ctrl_info->admin_queue_memory_length, 8762 ctrl_info->admin_queue_memory_base, 8763 ctrl_info->admin_queue_memory_base_dma_handle); 8764 pqi_free_all_io_requests(ctrl_info); 8765 if (ctrl_info->error_buffer) 8766 dma_free_coherent(&ctrl_info->pci_dev->dev, 8767 ctrl_info->error_buffer_length, 8768 ctrl_info->error_buffer, 8769 ctrl_info->error_buffer_dma_handle); 8770 if (ctrl_info->iomem_base) 8771 pqi_cleanup_pci_init(ctrl_info); 8772 pqi_free_ctrl_info(ctrl_info); 8773} 8774 8775static void pqi_remove_ctrl(struct pqi_ctrl_info *ctrl_info) 8776{ 8777 ctrl_info->controller_online = false; 8778 pqi_stop_heartbeat_timer(ctrl_info); 8779 pqi_ctrl_block_requests(ctrl_info); 8780 pqi_cancel_rescan_worker(ctrl_info); 8781 pqi_cancel_update_time_worker(ctrl_info); 8782 if (ctrl_info->ctrl_removal_state == PQI_CTRL_SURPRISE_REMOVAL) { 8783 pqi_fail_all_outstanding_requests(ctrl_info); 8784 ctrl_info->pqi_mode_enabled = false; 8785 } 8786 pqi_unregister_scsi(ctrl_info); 8787 if (ctrl_info->pqi_mode_enabled) 8788 pqi_revert_to_sis_mode(ctrl_info); 8789 pqi_free_ctrl_resources(ctrl_info); 8790} 8791 8792static void pqi_ofa_ctrl_quiesce(struct pqi_ctrl_info *ctrl_info) 8793{ 8794 pqi_ctrl_block_scan(ctrl_info); 8795 pqi_scsi_block_requests(ctrl_info); 8796 pqi_ctrl_block_device_reset(ctrl_info); 8797 pqi_ctrl_block_requests(ctrl_info); 8798 pqi_ctrl_wait_until_quiesced(ctrl_info); 8799 pqi_stop_heartbeat_timer(ctrl_info); 8800} 8801 8802static void pqi_ofa_ctrl_unquiesce(struct pqi_ctrl_info *ctrl_info) 8803{ 8804 pqi_start_heartbeat_timer(ctrl_info); 8805 pqi_ctrl_unblock_requests(ctrl_info); 8806 pqi_ctrl_unblock_device_reset(ctrl_info); 8807 pqi_scsi_unblock_requests(ctrl_info); 8808 pqi_ctrl_unblock_scan(ctrl_info); 8809} 8810 8811static int pqi_ofa_alloc_mem(struct pqi_ctrl_info *ctrl_info, u32 total_size, u32 chunk_size) 8812{ 8813 int i; 8814 u32 sg_count; 8815 struct device *dev; 8816 struct pqi_ofa_memory *ofap; 8817 struct pqi_sg_descriptor *mem_descriptor; 8818 dma_addr_t dma_handle; 8819 8820 ofap = ctrl_info->pqi_ofa_mem_virt_addr; 8821 8822 sg_count = DIV_ROUND_UP(total_size, chunk_size); 8823 if (sg_count == 0 || sg_count > PQI_OFA_MAX_SG_DESCRIPTORS) 8824 goto out; 8825 8826 ctrl_info->pqi_ofa_chunk_virt_addr = kmalloc_array(sg_count, sizeof(void *), GFP_KERNEL); 8827 if (!ctrl_info->pqi_ofa_chunk_virt_addr) 8828 goto out; 8829 8830 dev = &ctrl_info->pci_dev->dev; 8831 8832 for (i = 0; i < sg_count; i++) { 8833 ctrl_info->pqi_ofa_chunk_virt_addr[i] = 8834 dma_alloc_coherent(dev, chunk_size, &dma_handle, GFP_KERNEL); 8835 if (!ctrl_info->pqi_ofa_chunk_virt_addr[i]) 8836 goto out_free_chunks; 8837 mem_descriptor = &ofap->sg_descriptor[i]; 8838 put_unaligned_le64((u64)dma_handle, &mem_descriptor->address); 8839 put_unaligned_le32(chunk_size, &mem_descriptor->length); 8840 } 8841 8842 put_unaligned_le32(CISS_SG_LAST, &mem_descriptor->flags); 8843 put_unaligned_le16(sg_count, &ofap->num_memory_descriptors); 8844 put_unaligned_le32(sg_count * chunk_size, &ofap->bytes_allocated); 8845 8846 return 0; 8847 8848out_free_chunks: 8849 while (--i >= 0) { 8850 mem_descriptor = &ofap->sg_descriptor[i]; 8851 dma_free_coherent(dev, chunk_size, 8852 ctrl_info->pqi_ofa_chunk_virt_addr[i], 8853 get_unaligned_le64(&mem_descriptor->address)); 8854 } 8855 kfree(ctrl_info->pqi_ofa_chunk_virt_addr); 8856 8857out: 8858 return -ENOMEM; 8859} 8860 8861static int pqi_ofa_alloc_host_buffer(struct pqi_ctrl_info *ctrl_info) 8862{ 8863 u32 total_size; 8864 u32 chunk_size; 8865 u32 min_chunk_size; 8866 8867 if (ctrl_info->ofa_bytes_requested == 0) 8868 return 0; 8869 8870 total_size = PAGE_ALIGN(ctrl_info->ofa_bytes_requested); 8871 min_chunk_size = DIV_ROUND_UP(total_size, PQI_OFA_MAX_SG_DESCRIPTORS); 8872 min_chunk_size = PAGE_ALIGN(min_chunk_size); 8873 8874 for (chunk_size = total_size; chunk_size >= min_chunk_size;) { 8875 if (pqi_ofa_alloc_mem(ctrl_info, total_size, chunk_size) == 0) 8876 return 0; 8877 chunk_size /= 2; 8878 chunk_size = PAGE_ALIGN(chunk_size); 8879 } 8880 8881 return -ENOMEM; 8882} 8883 8884static void pqi_ofa_setup_host_buffer(struct pqi_ctrl_info *ctrl_info) 8885{ 8886 struct device *dev; 8887 struct pqi_ofa_memory *ofap; 8888 8889 dev = &ctrl_info->pci_dev->dev; 8890 8891 ofap = dma_alloc_coherent(dev, sizeof(*ofap), 8892 &ctrl_info->pqi_ofa_mem_dma_handle, GFP_KERNEL); 8893 if (!ofap) 8894 return; 8895 8896 ctrl_info->pqi_ofa_mem_virt_addr = ofap; 8897 8898 if (pqi_ofa_alloc_host_buffer(ctrl_info) < 0) { 8899 dev_err(dev, 8900 "failed to allocate host buffer for Online Firmware Activation\n"); 8901 dma_free_coherent(dev, sizeof(*ofap), ofap, ctrl_info->pqi_ofa_mem_dma_handle); 8902 ctrl_info->pqi_ofa_mem_virt_addr = NULL; 8903 return; 8904 } 8905 8906 put_unaligned_le16(PQI_OFA_VERSION, &ofap->version); 8907 memcpy(&ofap->signature, PQI_OFA_SIGNATURE, sizeof(ofap->signature)); 8908} 8909 8910static void pqi_ofa_free_host_buffer(struct pqi_ctrl_info *ctrl_info) 8911{ 8912 unsigned int i; 8913 struct device *dev; 8914 struct pqi_ofa_memory *ofap; 8915 struct pqi_sg_descriptor *mem_descriptor; 8916 unsigned int num_memory_descriptors; 8917 8918 ofap = ctrl_info->pqi_ofa_mem_virt_addr; 8919 if (!ofap) 8920 return; 8921 8922 dev = &ctrl_info->pci_dev->dev; 8923 8924 if (get_unaligned_le32(&ofap->bytes_allocated) == 0) 8925 goto out; 8926 8927 mem_descriptor = ofap->sg_descriptor; 8928 num_memory_descriptors = 8929 get_unaligned_le16(&ofap->num_memory_descriptors); 8930 8931 for (i = 0; i < num_memory_descriptors; i++) { 8932 dma_free_coherent(dev, 8933 get_unaligned_le32(&mem_descriptor[i].length), 8934 ctrl_info->pqi_ofa_chunk_virt_addr[i], 8935 get_unaligned_le64(&mem_descriptor[i].address)); 8936 } 8937 kfree(ctrl_info->pqi_ofa_chunk_virt_addr); 8938 8939out: 8940 dma_free_coherent(dev, sizeof(*ofap), ofap, 8941 ctrl_info->pqi_ofa_mem_dma_handle); 8942 ctrl_info->pqi_ofa_mem_virt_addr = NULL; 8943} 8944 8945static int pqi_ofa_host_memory_update(struct pqi_ctrl_info *ctrl_info) 8946{ 8947 u32 buffer_length; 8948 struct pqi_vendor_general_request request; 8949 struct pqi_ofa_memory *ofap; 8950 8951 memset(&request, 0, sizeof(request)); 8952 8953 request.header.iu_type = PQI_REQUEST_IU_VENDOR_GENERAL; 8954 put_unaligned_le16(sizeof(request) - PQI_REQUEST_HEADER_LENGTH, 8955 &request.header.iu_length); 8956 put_unaligned_le16(PQI_VENDOR_GENERAL_HOST_MEMORY_UPDATE, 8957 &request.function_code); 8958 8959 ofap = ctrl_info->pqi_ofa_mem_virt_addr; 8960 8961 if (ofap) { 8962 buffer_length = offsetof(struct pqi_ofa_memory, sg_descriptor) + 8963 get_unaligned_le16(&ofap->num_memory_descriptors) * 8964 sizeof(struct pqi_sg_descriptor); 8965 8966 put_unaligned_le64((u64)ctrl_info->pqi_ofa_mem_dma_handle, 8967 &request.data.ofa_memory_allocation.buffer_address); 8968 put_unaligned_le32(buffer_length, 8969 &request.data.ofa_memory_allocation.buffer_length); 8970 } 8971 8972 return pqi_submit_raid_request_synchronous(ctrl_info, &request.header, 0, NULL); 8973} 8974 8975static int pqi_ofa_ctrl_restart(struct pqi_ctrl_info *ctrl_info, unsigned int delay_secs) 8976{ 8977 ssleep(delay_secs); 8978 8979 return pqi_ctrl_init_resume(ctrl_info); 8980} 8981 8982static struct pqi_raid_error_info pqi_ctrl_offline_raid_error_info = { 8983 .data_out_result = PQI_DATA_IN_OUT_HARDWARE_ERROR, 8984 .status = SAM_STAT_CHECK_CONDITION, 8985}; 8986 8987static void pqi_fail_all_outstanding_requests(struct pqi_ctrl_info *ctrl_info) 8988{ 8989 unsigned int i; 8990 struct pqi_io_request *io_request; 8991 struct scsi_cmnd *scmd; 8992 struct scsi_device *sdev; 8993 8994 for (i = 0; i < ctrl_info->max_io_slots; i++) { 8995 io_request = &ctrl_info->io_request_pool[i]; 8996 if (atomic_read(&io_request->refcount) == 0) 8997 continue; 8998 8999 scmd = io_request->scmd; 9000 if (scmd) { 9001 sdev = scmd->device; 9002 if (!sdev || !scsi_device_online(sdev)) { 9003 pqi_free_io_request(io_request); 9004 continue; 9005 } else { 9006 set_host_byte(scmd, DID_NO_CONNECT); 9007 } 9008 } else { 9009 io_request->status = -ENXIO; 9010 io_request->error_info = 9011 &pqi_ctrl_offline_raid_error_info; 9012 } 9013 9014 io_request->io_complete_callback(io_request, 9015 io_request->context); 9016 } 9017} 9018 9019static void pqi_take_ctrl_offline_deferred(struct pqi_ctrl_info *ctrl_info) 9020{ 9021 pqi_perform_lockup_action(); 9022 pqi_stop_heartbeat_timer(ctrl_info); 9023 pqi_free_interrupts(ctrl_info); 9024 pqi_cancel_rescan_worker(ctrl_info); 9025 pqi_cancel_update_time_worker(ctrl_info); 9026 pqi_ctrl_wait_until_quiesced(ctrl_info); 9027 pqi_fail_all_outstanding_requests(ctrl_info); 9028 pqi_ctrl_unblock_requests(ctrl_info); 9029} 9030 9031static void pqi_ctrl_offline_worker(struct work_struct *work) 9032{ 9033 struct pqi_ctrl_info *ctrl_info; 9034 9035 ctrl_info = container_of(work, struct pqi_ctrl_info, ctrl_offline_work); 9036 pqi_take_ctrl_offline_deferred(ctrl_info); 9037} 9038 9039static char *pqi_ctrl_shutdown_reason_to_string(enum pqi_ctrl_shutdown_reason ctrl_shutdown_reason) 9040{ 9041 char *string; 9042 9043 switch (ctrl_shutdown_reason) { 9044 case PQI_IQ_NOT_DRAINED_TIMEOUT: 9045 string = "inbound queue not drained timeout"; 9046 break; 9047 case PQI_LUN_RESET_TIMEOUT: 9048 string = "LUN reset timeout"; 9049 break; 9050 case PQI_IO_PENDING_POST_LUN_RESET_TIMEOUT: 9051 string = "I/O pending timeout after LUN reset"; 9052 break; 9053 case PQI_NO_HEARTBEAT: 9054 string = "no controller heartbeat detected"; 9055 break; 9056 case PQI_FIRMWARE_KERNEL_NOT_UP: 9057 string = "firmware kernel not ready"; 9058 break; 9059 case PQI_OFA_RESPONSE_TIMEOUT: 9060 string = "OFA response timeout"; 9061 break; 9062 case PQI_INVALID_REQ_ID: 9063 string = "invalid request ID"; 9064 break; 9065 case PQI_UNMATCHED_REQ_ID: 9066 string = "unmatched request ID"; 9067 break; 9068 case PQI_IO_PI_OUT_OF_RANGE: 9069 string = "I/O queue producer index out of range"; 9070 break; 9071 case PQI_EVENT_PI_OUT_OF_RANGE: 9072 string = "event queue producer index out of range"; 9073 break; 9074 case PQI_UNEXPECTED_IU_TYPE: 9075 string = "unexpected IU type"; 9076 break; 9077 default: 9078 string = "unknown reason"; 9079 break; 9080 } 9081 9082 return string; 9083} 9084 9085static void pqi_take_ctrl_offline(struct pqi_ctrl_info *ctrl_info, 9086 enum pqi_ctrl_shutdown_reason ctrl_shutdown_reason) 9087{ 9088 if (!ctrl_info->controller_online) 9089 return; 9090 9091 ctrl_info->controller_online = false; 9092 ctrl_info->pqi_mode_enabled = false; 9093 pqi_ctrl_block_requests(ctrl_info); 9094 if (!pqi_disable_ctrl_shutdown) 9095 sis_shutdown_ctrl(ctrl_info, ctrl_shutdown_reason); 9096 pci_disable_device(ctrl_info->pci_dev); 9097 dev_err(&ctrl_info->pci_dev->dev, 9098 "controller offline: reason code 0x%x (%s)\n", 9099 ctrl_shutdown_reason, pqi_ctrl_shutdown_reason_to_string(ctrl_shutdown_reason)); 9100 schedule_work(&ctrl_info->ctrl_offline_work); 9101} 9102 9103static void pqi_print_ctrl_info(struct pci_dev *pci_dev, 9104 const struct pci_device_id *id) 9105{ 9106 char *ctrl_description; 9107 9108 if (id->driver_data) 9109 ctrl_description = (char *)id->driver_data; 9110 else 9111 ctrl_description = "Microchip Smart Family Controller"; 9112 9113 dev_info(&pci_dev->dev, "%s found\n", ctrl_description); 9114} 9115 9116static int pqi_pci_probe(struct pci_dev *pci_dev, 9117 const struct pci_device_id *id) 9118{ 9119 int rc; 9120 int node; 9121 struct pqi_ctrl_info *ctrl_info; 9122 9123 pqi_print_ctrl_info(pci_dev, id); 9124 9125 if (pqi_disable_device_id_wildcards && 9126 id->subvendor == PCI_ANY_ID && 9127 id->subdevice == PCI_ANY_ID) { 9128 dev_warn(&pci_dev->dev, 9129 "controller not probed because device ID wildcards are disabled\n"); 9130 return -ENODEV; 9131 } 9132 9133 if (id->subvendor == PCI_ANY_ID || id->subdevice == PCI_ANY_ID) 9134 dev_warn(&pci_dev->dev, 9135 "controller device ID matched using wildcards\n"); 9136 9137 node = dev_to_node(&pci_dev->dev); 9138 if (node == NUMA_NO_NODE) { 9139 node = cpu_to_node(0); 9140 if (node == NUMA_NO_NODE) 9141 node = 0; 9142 set_dev_node(&pci_dev->dev, node); 9143 } 9144 9145 ctrl_info = pqi_alloc_ctrl_info(node); 9146 if (!ctrl_info) { 9147 dev_err(&pci_dev->dev, 9148 "failed to allocate controller info block\n"); 9149 return -ENOMEM; 9150 } 9151 ctrl_info->numa_node = node; 9152 9153 ctrl_info->pci_dev = pci_dev; 9154 9155 rc = pqi_pci_init(ctrl_info); 9156 if (rc) 9157 goto error; 9158 9159 rc = pqi_ctrl_init(ctrl_info); 9160 if (rc) 9161 goto error; 9162 9163 return 0; 9164 9165error: 9166 pqi_remove_ctrl(ctrl_info); 9167 9168 return rc; 9169} 9170 9171static void pqi_pci_remove(struct pci_dev *pci_dev) 9172{ 9173 struct pqi_ctrl_info *ctrl_info; 9174 u16 vendor_id; 9175 int rc; 9176 9177 ctrl_info = pci_get_drvdata(pci_dev); 9178 if (!ctrl_info) 9179 return; 9180 9181 pci_read_config_word(ctrl_info->pci_dev, PCI_SUBSYSTEM_VENDOR_ID, &vendor_id); 9182 if (vendor_id == 0xffff) 9183 ctrl_info->ctrl_removal_state = PQI_CTRL_SURPRISE_REMOVAL; 9184 else 9185 ctrl_info->ctrl_removal_state = PQI_CTRL_GRACEFUL_REMOVAL; 9186 9187 if (ctrl_info->ctrl_removal_state == PQI_CTRL_GRACEFUL_REMOVAL) { 9188 rc = pqi_flush_cache(ctrl_info, RESTART); 9189 if (rc) 9190 dev_err(&pci_dev->dev, 9191 "unable to flush controller cache during remove\n"); 9192 } 9193 9194 pqi_remove_ctrl(ctrl_info); 9195} 9196 9197static void pqi_crash_if_pending_command(struct pqi_ctrl_info *ctrl_info) 9198{ 9199 unsigned int i; 9200 struct pqi_io_request *io_request; 9201 struct scsi_cmnd *scmd; 9202 9203 for (i = 0; i < ctrl_info->max_io_slots; i++) { 9204 io_request = &ctrl_info->io_request_pool[i]; 9205 if (atomic_read(&io_request->refcount) == 0) 9206 continue; 9207 scmd = io_request->scmd; 9208 WARN_ON(scmd != NULL); /* IO command from SML */ 9209 WARN_ON(scmd == NULL); /* Non-IO cmd or driver initiated*/ 9210 } 9211} 9212 9213static void pqi_shutdown(struct pci_dev *pci_dev) 9214{ 9215 int rc; 9216 struct pqi_ctrl_info *ctrl_info; 9217 enum bmic_flush_cache_shutdown_event shutdown_event; 9218 9219 ctrl_info = pci_get_drvdata(pci_dev); 9220 if (!ctrl_info) { 9221 dev_err(&pci_dev->dev, 9222 "cache could not be flushed\n"); 9223 return; 9224 } 9225 9226 pqi_wait_until_ofa_finished(ctrl_info); 9227 9228 pqi_scsi_block_requests(ctrl_info); 9229 pqi_ctrl_block_device_reset(ctrl_info); 9230 pqi_ctrl_block_requests(ctrl_info); 9231 pqi_ctrl_wait_until_quiesced(ctrl_info); 9232 9233 if (system_state == SYSTEM_RESTART) 9234 shutdown_event = RESTART; 9235 else 9236 shutdown_event = SHUTDOWN; 9237 9238 /* 9239 * Write all data in the controller's battery-backed cache to 9240 * storage. 9241 */ 9242 rc = pqi_flush_cache(ctrl_info, shutdown_event); 9243 if (rc) 9244 dev_err(&pci_dev->dev, 9245 "unable to flush controller cache during shutdown\n"); 9246 9247 pqi_crash_if_pending_command(ctrl_info); 9248 pqi_reset(ctrl_info); 9249} 9250 9251static void pqi_process_lockup_action_param(void) 9252{ 9253 unsigned int i; 9254 9255 if (!pqi_lockup_action_param) 9256 return; 9257 9258 for (i = 0; i < ARRAY_SIZE(pqi_lockup_actions); i++) { 9259 if (strcmp(pqi_lockup_action_param, 9260 pqi_lockup_actions[i].name) == 0) { 9261 pqi_lockup_action = pqi_lockup_actions[i].action; 9262 return; 9263 } 9264 } 9265 9266 pr_warn("%s: invalid lockup action setting \"%s\" - supported settings: none, reboot, panic\n", 9267 DRIVER_NAME_SHORT, pqi_lockup_action_param); 9268} 9269 9270#define PQI_CTRL_READY_TIMEOUT_PARAM_MIN_SECS 30 9271#define PQI_CTRL_READY_TIMEOUT_PARAM_MAX_SECS (30 * 60) 9272 9273static void pqi_process_ctrl_ready_timeout_param(void) 9274{ 9275 if (pqi_ctrl_ready_timeout_secs == 0) 9276 return; 9277 9278 if (pqi_ctrl_ready_timeout_secs < PQI_CTRL_READY_TIMEOUT_PARAM_MIN_SECS) { 9279 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", 9280 DRIVER_NAME_SHORT, pqi_ctrl_ready_timeout_secs, PQI_CTRL_READY_TIMEOUT_PARAM_MIN_SECS, PQI_CTRL_READY_TIMEOUT_PARAM_MIN_SECS); 9281 pqi_ctrl_ready_timeout_secs = PQI_CTRL_READY_TIMEOUT_PARAM_MIN_SECS; 9282 } else if (pqi_ctrl_ready_timeout_secs > PQI_CTRL_READY_TIMEOUT_PARAM_MAX_SECS) { 9283 pr_warn("%s: ctrl_ready_timeout parm of %u seconds is greater than maximum timeout of %d seconds - setting timeout to %d seconds\n", 9284 DRIVER_NAME_SHORT, pqi_ctrl_ready_timeout_secs, PQI_CTRL_READY_TIMEOUT_PARAM_MAX_SECS, PQI_CTRL_READY_TIMEOUT_PARAM_MAX_SECS); 9285 pqi_ctrl_ready_timeout_secs = PQI_CTRL_READY_TIMEOUT_PARAM_MAX_SECS; 9286 } 9287 9288 sis_ctrl_ready_timeout_secs = pqi_ctrl_ready_timeout_secs; 9289} 9290 9291static void pqi_process_module_params(void) 9292{ 9293 pqi_process_lockup_action_param(); 9294 pqi_process_ctrl_ready_timeout_param(); 9295} 9296 9297#if defined(CONFIG_PM) 9298 9299static inline enum bmic_flush_cache_shutdown_event pqi_get_flush_cache_shutdown_event(struct pci_dev *pci_dev) 9300{ 9301 if (pci_dev->subsystem_vendor == PCI_VENDOR_ID_ADAPTEC2 && pci_dev->subsystem_device == 0x1304) 9302 return RESTART; 9303 9304 return SUSPEND; 9305} 9306 9307static int pqi_suspend_or_freeze(struct device *dev, bool suspend) 9308{ 9309 struct pci_dev *pci_dev; 9310 struct pqi_ctrl_info *ctrl_info; 9311 9312 pci_dev = to_pci_dev(dev); 9313 ctrl_info = pci_get_drvdata(pci_dev); 9314 9315 pqi_wait_until_ofa_finished(ctrl_info); 9316 9317 pqi_ctrl_block_scan(ctrl_info); 9318 pqi_scsi_block_requests(ctrl_info); 9319 pqi_ctrl_block_device_reset(ctrl_info); 9320 pqi_ctrl_block_requests(ctrl_info); 9321 pqi_ctrl_wait_until_quiesced(ctrl_info); 9322 9323 if (suspend) { 9324 enum bmic_flush_cache_shutdown_event shutdown_event; 9325 9326 shutdown_event = pqi_get_flush_cache_shutdown_event(pci_dev); 9327 pqi_flush_cache(ctrl_info, shutdown_event); 9328 } 9329 9330 pqi_stop_heartbeat_timer(ctrl_info); 9331 pqi_crash_if_pending_command(ctrl_info); 9332 pqi_free_irqs(ctrl_info); 9333 9334 ctrl_info->controller_online = false; 9335 ctrl_info->pqi_mode_enabled = false; 9336 9337 return 0; 9338} 9339 9340static __maybe_unused int pqi_suspend(struct device *dev) 9341{ 9342 return pqi_suspend_or_freeze(dev, true); 9343} 9344 9345static int pqi_resume_or_restore(struct device *dev) 9346{ 9347 int rc; 9348 struct pci_dev *pci_dev; 9349 struct pqi_ctrl_info *ctrl_info; 9350 9351 pci_dev = to_pci_dev(dev); 9352 ctrl_info = pci_get_drvdata(pci_dev); 9353 9354 rc = pqi_request_irqs(ctrl_info); 9355 if (rc) 9356 return rc; 9357 9358 pqi_ctrl_unblock_device_reset(ctrl_info); 9359 pqi_ctrl_unblock_requests(ctrl_info); 9360 pqi_scsi_unblock_requests(ctrl_info); 9361 pqi_ctrl_unblock_scan(ctrl_info); 9362 9363 ssleep(PQI_POST_RESET_DELAY_SECS); 9364 9365 return pqi_ctrl_init_resume(ctrl_info); 9366} 9367 9368static int pqi_freeze(struct device *dev) 9369{ 9370 return pqi_suspend_or_freeze(dev, false); 9371} 9372 9373static int pqi_thaw(struct device *dev) 9374{ 9375 int rc; 9376 struct pci_dev *pci_dev; 9377 struct pqi_ctrl_info *ctrl_info; 9378 9379 pci_dev = to_pci_dev(dev); 9380 ctrl_info = pci_get_drvdata(pci_dev); 9381 9382 rc = pqi_request_irqs(ctrl_info); 9383 if (rc) 9384 return rc; 9385 9386 ctrl_info->controller_online = true; 9387 ctrl_info->pqi_mode_enabled = true; 9388 9389 pqi_ctrl_unblock_device_reset(ctrl_info); 9390 pqi_ctrl_unblock_requests(ctrl_info); 9391 pqi_scsi_unblock_requests(ctrl_info); 9392 pqi_ctrl_unblock_scan(ctrl_info); 9393 9394 return 0; 9395} 9396 9397static int pqi_poweroff(struct device *dev) 9398{ 9399 struct pci_dev *pci_dev; 9400 struct pqi_ctrl_info *ctrl_info; 9401 enum bmic_flush_cache_shutdown_event shutdown_event; 9402 9403 pci_dev = to_pci_dev(dev); 9404 ctrl_info = pci_get_drvdata(pci_dev); 9405 9406 shutdown_event = pqi_get_flush_cache_shutdown_event(pci_dev); 9407 pqi_flush_cache(ctrl_info, shutdown_event); 9408 9409 return 0; 9410} 9411 9412static const struct dev_pm_ops pqi_pm_ops = { 9413 .suspend = pqi_suspend, 9414 .resume = pqi_resume_or_restore, 9415 .freeze = pqi_freeze, 9416 .thaw = pqi_thaw, 9417 .poweroff = pqi_poweroff, 9418 .restore = pqi_resume_or_restore, 9419}; 9420 9421#endif /* CONFIG_PM */ 9422 9423/* Define the PCI IDs for the controllers that we support. */ 9424static const struct pci_device_id pqi_pci_id_table[] = { 9425 { 9426 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 9427 0x105b, 0x1211) 9428 }, 9429 { 9430 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 9431 0x105b, 0x1321) 9432 }, 9433 { 9434 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 9435 0x152d, 0x8a22) 9436 }, 9437 { 9438 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 9439 0x152d, 0x8a23) 9440 }, 9441 { 9442 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 9443 0x152d, 0x8a24) 9444 }, 9445 { 9446 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 9447 0x152d, 0x8a36) 9448 }, 9449 { 9450 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 9451 0x152d, 0x8a37) 9452 }, 9453 { 9454 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 9455 0x193d, 0x1104) 9456 }, 9457 { 9458 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 9459 0x193d, 0x1105) 9460 }, 9461 { 9462 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 9463 0x193d, 0x1106) 9464 }, 9465 { 9466 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 9467 0x193d, 0x1107) 9468 }, 9469 { 9470 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 9471 0x193d, 0x1108) 9472 }, 9473 { 9474 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 9475 0x193d, 0x1109) 9476 }, 9477 { 9478 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 9479 0x193d, 0x110b) 9480 }, 9481 { 9482 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 9483 0x193d, 0x8460) 9484 }, 9485 { 9486 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 9487 0x193d, 0x8461) 9488 }, 9489 { 9490 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 9491 0x193d, 0xc460) 9492 }, 9493 { 9494 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 9495 0x193d, 0xc461) 9496 }, 9497 { 9498 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 9499 0x193d, 0xf460) 9500 }, 9501 { 9502 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 9503 0x193d, 0xf461) 9504 }, 9505 { 9506 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 9507 0x1bd4, 0x0045) 9508 }, 9509 { 9510 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 9511 0x1bd4, 0x0046) 9512 }, 9513 { 9514 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 9515 0x1bd4, 0x0047) 9516 }, 9517 { 9518 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 9519 0x1bd4, 0x0048) 9520 }, 9521 { 9522 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 9523 0x1bd4, 0x004a) 9524 }, 9525 { 9526 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 9527 0x1bd4, 0x004b) 9528 }, 9529 { 9530 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 9531 0x1bd4, 0x004c) 9532 }, 9533 { 9534 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 9535 0x1bd4, 0x004f) 9536 }, 9537 { 9538 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 9539 0x1bd4, 0x0051) 9540 }, 9541 { 9542 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 9543 0x1bd4, 0x0052) 9544 }, 9545 { 9546 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 9547 0x1bd4, 0x0053) 9548 }, 9549 { 9550 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 9551 0x1bd4, 0x0054) 9552 }, 9553 { 9554 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 9555 0x1bd4, 0x006b) 9556 }, 9557 { 9558 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 9559 0x1bd4, 0x006c) 9560 }, 9561 { 9562 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 9563 0x1bd4, 0x006d) 9564 }, 9565 { 9566 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 9567 0x1bd4, 0x006f) 9568 }, 9569 { 9570 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 9571 0x1bd4, 0x0070) 9572 }, 9573 { 9574 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 9575 0x1bd4, 0x0071) 9576 }, 9577 { 9578 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 9579 0x1bd4, 0x0072) 9580 }, 9581 { 9582 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 9583 0x1bd4, 0x0086) 9584 }, 9585 { 9586 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 9587 0x1bd4, 0x0087) 9588 }, 9589 { 9590 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 9591 0x1bd4, 0x0088) 9592 }, 9593 { 9594 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 9595 0x1bd4, 0x0089) 9596 }, 9597 { 9598 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 9599 0x19e5, 0xd227) 9600 }, 9601 { 9602 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 9603 0x19e5, 0xd228) 9604 }, 9605 { 9606 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 9607 0x19e5, 0xd229) 9608 }, 9609 { 9610 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 9611 0x19e5, 0xd22a) 9612 }, 9613 { 9614 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 9615 0x19e5, 0xd22b) 9616 }, 9617 { 9618 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 9619 0x19e5, 0xd22c) 9620 }, 9621 { 9622 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 9623 PCI_VENDOR_ID_ADAPTEC2, 0x0110) 9624 }, 9625 { 9626 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 9627 PCI_VENDOR_ID_ADAPTEC2, 0x0608) 9628 }, 9629 { 9630 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 9631 PCI_VENDOR_ID_ADAPTEC2, 0x0659) 9632 }, 9633 { 9634 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 9635 PCI_VENDOR_ID_ADAPTEC2, 0x0800) 9636 }, 9637 { 9638 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 9639 PCI_VENDOR_ID_ADAPTEC2, 0x0801) 9640 }, 9641 { 9642 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 9643 PCI_VENDOR_ID_ADAPTEC2, 0x0802) 9644 }, 9645 { 9646 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 9647 PCI_VENDOR_ID_ADAPTEC2, 0x0803) 9648 }, 9649 { 9650 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 9651 PCI_VENDOR_ID_ADAPTEC2, 0x0804) 9652 }, 9653 { 9654 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 9655 PCI_VENDOR_ID_ADAPTEC2, 0x0805) 9656 }, 9657 { 9658 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 9659 PCI_VENDOR_ID_ADAPTEC2, 0x0806) 9660 }, 9661 { 9662 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 9663 PCI_VENDOR_ID_ADAPTEC2, 0x0807) 9664 }, 9665 { 9666 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 9667 PCI_VENDOR_ID_ADAPTEC2, 0x0808) 9668 }, 9669 { 9670 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 9671 PCI_VENDOR_ID_ADAPTEC2, 0x0809) 9672 }, 9673 { 9674 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 9675 PCI_VENDOR_ID_ADAPTEC2, 0x080a) 9676 }, 9677 { 9678 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 9679 PCI_VENDOR_ID_ADAPTEC2, 0x0900) 9680 }, 9681 { 9682 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 9683 PCI_VENDOR_ID_ADAPTEC2, 0x0901) 9684 }, 9685 { 9686 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 9687 PCI_VENDOR_ID_ADAPTEC2, 0x0902) 9688 }, 9689 { 9690 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 9691 PCI_VENDOR_ID_ADAPTEC2, 0x0903) 9692 }, 9693 { 9694 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 9695 PCI_VENDOR_ID_ADAPTEC2, 0x0904) 9696 }, 9697 { 9698 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 9699 PCI_VENDOR_ID_ADAPTEC2, 0x0905) 9700 }, 9701 { 9702 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 9703 PCI_VENDOR_ID_ADAPTEC2, 0x0906) 9704 }, 9705 { 9706 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 9707 PCI_VENDOR_ID_ADAPTEC2, 0x0907) 9708 }, 9709 { 9710 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 9711 PCI_VENDOR_ID_ADAPTEC2, 0x0908) 9712 }, 9713 { 9714 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 9715 PCI_VENDOR_ID_ADAPTEC2, 0x090a) 9716 }, 9717 { 9718 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 9719 PCI_VENDOR_ID_ADAPTEC2, 0x1200) 9720 }, 9721 { 9722 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 9723 PCI_VENDOR_ID_ADAPTEC2, 0x1201) 9724 }, 9725 { 9726 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 9727 PCI_VENDOR_ID_ADAPTEC2, 0x1202) 9728 }, 9729 { 9730 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 9731 PCI_VENDOR_ID_ADAPTEC2, 0x1280) 9732 }, 9733 { 9734 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 9735 PCI_VENDOR_ID_ADAPTEC2, 0x1281) 9736 }, 9737 { 9738 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 9739 PCI_VENDOR_ID_ADAPTEC2, 0x1282) 9740 }, 9741 { 9742 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 9743 PCI_VENDOR_ID_ADAPTEC2, 0x1300) 9744 }, 9745 { 9746 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 9747 PCI_VENDOR_ID_ADAPTEC2, 0x1301) 9748 }, 9749 { 9750 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 9751 PCI_VENDOR_ID_ADAPTEC2, 0x1302) 9752 }, 9753 { 9754 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 9755 PCI_VENDOR_ID_ADAPTEC2, 0x1303) 9756 }, 9757 { 9758 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 9759 PCI_VENDOR_ID_ADAPTEC2, 0x1304) 9760 }, 9761 { 9762 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 9763 PCI_VENDOR_ID_ADAPTEC2, 0x1380) 9764 }, 9765 { 9766 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 9767 PCI_VENDOR_ID_ADAPTEC2, 0x1400) 9768 }, 9769 { 9770 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 9771 PCI_VENDOR_ID_ADAPTEC2, 0x1402) 9772 }, 9773 { 9774 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 9775 PCI_VENDOR_ID_ADAPTEC2, 0x1410) 9776 }, 9777 { 9778 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 9779 PCI_VENDOR_ID_ADAPTEC2, 0x1411) 9780 }, 9781 { 9782 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 9783 PCI_VENDOR_ID_ADAPTEC2, 0x1412) 9784 }, 9785 { 9786 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 9787 PCI_VENDOR_ID_ADAPTEC2, 0x1420) 9788 }, 9789 { 9790 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 9791 PCI_VENDOR_ID_ADAPTEC2, 0x1430) 9792 }, 9793 { 9794 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 9795 PCI_VENDOR_ID_ADAPTEC2, 0x1440) 9796 }, 9797 { 9798 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 9799 PCI_VENDOR_ID_ADAPTEC2, 0x1441) 9800 }, 9801 { 9802 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 9803 PCI_VENDOR_ID_ADAPTEC2, 0x1450) 9804 }, 9805 { 9806 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 9807 PCI_VENDOR_ID_ADAPTEC2, 0x1452) 9808 }, 9809 { 9810 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 9811 PCI_VENDOR_ID_ADAPTEC2, 0x1460) 9812 }, 9813 { 9814 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 9815 PCI_VENDOR_ID_ADAPTEC2, 0x1461) 9816 }, 9817 { 9818 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 9819 PCI_VENDOR_ID_ADAPTEC2, 0x1462) 9820 }, 9821 { 9822 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 9823 PCI_VENDOR_ID_ADAPTEC2, 0x1463) 9824 }, 9825 { 9826 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 9827 PCI_VENDOR_ID_ADAPTEC2, 0x1470) 9828 }, 9829 { 9830 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 9831 PCI_VENDOR_ID_ADAPTEC2, 0x1471) 9832 }, 9833 { 9834 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 9835 PCI_VENDOR_ID_ADAPTEC2, 0x1472) 9836 }, 9837 { 9838 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 9839 PCI_VENDOR_ID_ADAPTEC2, 0x1473) 9840 }, 9841 { 9842 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 9843 PCI_VENDOR_ID_ADAPTEC2, 0x1474) 9844 }, 9845 { 9846 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 9847 PCI_VENDOR_ID_ADAPTEC2, 0x1475) 9848 }, 9849 { 9850 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 9851 PCI_VENDOR_ID_ADAPTEC2, 0x1480) 9852 }, 9853 { 9854 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 9855 PCI_VENDOR_ID_ADAPTEC2, 0x1490) 9856 }, 9857 { 9858 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 9859 PCI_VENDOR_ID_ADAPTEC2, 0x1491) 9860 }, 9861 { 9862 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 9863 PCI_VENDOR_ID_ADAPTEC2, 0x14a0) 9864 }, 9865 { 9866 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 9867 PCI_VENDOR_ID_ADAPTEC2, 0x14a1) 9868 }, 9869 { 9870 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 9871 PCI_VENDOR_ID_ADAPTEC2, 0x14a2) 9872 }, 9873 { 9874 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 9875 PCI_VENDOR_ID_ADAPTEC2, 0x14a4) 9876 }, 9877 { 9878 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 9879 PCI_VENDOR_ID_ADAPTEC2, 0x14a5) 9880 }, 9881 { 9882 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 9883 PCI_VENDOR_ID_ADAPTEC2, 0x14a6) 9884 }, 9885 { 9886 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 9887 PCI_VENDOR_ID_ADAPTEC2, 0x14b0) 9888 }, 9889 { 9890 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 9891 PCI_VENDOR_ID_ADAPTEC2, 0x14b1) 9892 }, 9893 { 9894 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 9895 PCI_VENDOR_ID_ADAPTEC2, 0x14c0) 9896 }, 9897 { 9898 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 9899 PCI_VENDOR_ID_ADAPTEC2, 0x14c1) 9900 }, 9901 { 9902 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 9903 PCI_VENDOR_ID_ADAPTEC2, 0x14c2) 9904 }, 9905 { 9906 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 9907 PCI_VENDOR_ID_ADAPTEC2, 0x14c3) 9908 }, 9909 { 9910 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 9911 PCI_VENDOR_ID_ADAPTEC2, 0x14c4) 9912 }, 9913 { 9914 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 9915 PCI_VENDOR_ID_ADAPTEC2, 0x14d0) 9916 }, 9917 { 9918 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 9919 PCI_VENDOR_ID_ADAPTEC2, 0x14e0) 9920 }, 9921 { 9922 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 9923 PCI_VENDOR_ID_ADAPTEC2, 0x14f0) 9924 }, 9925 { 9926 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 9927 PCI_VENDOR_ID_ADVANTECH, 0x8312) 9928 }, 9929 { 9930 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 9931 PCI_VENDOR_ID_DELL, 0x1fe0) 9932 }, 9933 { 9934 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 9935 PCI_VENDOR_ID_HP, 0x0600) 9936 }, 9937 { 9938 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 9939 PCI_VENDOR_ID_HP, 0x0601) 9940 }, 9941 { 9942 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 9943 PCI_VENDOR_ID_HP, 0x0602) 9944 }, 9945 { 9946 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 9947 PCI_VENDOR_ID_HP, 0x0603) 9948 }, 9949 { 9950 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 9951 PCI_VENDOR_ID_HP, 0x0609) 9952 }, 9953 { 9954 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 9955 PCI_VENDOR_ID_HP, 0x0650) 9956 }, 9957 { 9958 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 9959 PCI_VENDOR_ID_HP, 0x0651) 9960 }, 9961 { 9962 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 9963 PCI_VENDOR_ID_HP, 0x0652) 9964 }, 9965 { 9966 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 9967 PCI_VENDOR_ID_HP, 0x0653) 9968 }, 9969 { 9970 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 9971 PCI_VENDOR_ID_HP, 0x0654) 9972 }, 9973 { 9974 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 9975 PCI_VENDOR_ID_HP, 0x0655) 9976 }, 9977 { 9978 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 9979 PCI_VENDOR_ID_HP, 0x0700) 9980 }, 9981 { 9982 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 9983 PCI_VENDOR_ID_HP, 0x0701) 9984 }, 9985 { 9986 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 9987 PCI_VENDOR_ID_HP, 0x1001) 9988 }, 9989 { 9990 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 9991 PCI_VENDOR_ID_HP, 0x1002) 9992 }, 9993 { 9994 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 9995 PCI_VENDOR_ID_HP, 0x1100) 9996 }, 9997 { 9998 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 9999 PCI_VENDOR_ID_HP, 0x1101) 10000 }, 10001 { 10002 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 10003 0x1590, 0x0294) 10004 }, 10005 { 10006 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 10007 0x1590, 0x02db) 10008 }, 10009 { 10010 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 10011 0x1590, 0x02dc) 10012 }, 10013 { 10014 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 10015 0x1590, 0x032e) 10016 }, 10017 { 10018 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 10019 0x1590, 0x036f) 10020 }, 10021 { 10022 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 10023 0x1590, 0x0381) 10024 }, 10025 { 10026 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 10027 0x1590, 0x0382) 10028 }, 10029 { 10030 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 10031 0x1590, 0x0383) 10032 }, 10033 { 10034 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 10035 0x1d8d, 0x0800) 10036 }, 10037 { 10038 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 10039 0x1d8d, 0x0908) 10040 }, 10041 { 10042 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 10043 0x1d8d, 0x0806) 10044 }, 10045 { 10046 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 10047 0x1d8d, 0x0916) 10048 }, 10049 { 10050 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 10051 PCI_VENDOR_ID_GIGABYTE, 0x1000) 10052 }, 10053 { 10054 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 10055 0x1dfc, 0x3161) 10056 }, 10057 { 10058 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 10059 0x1f0c, 0x3161) 10060 }, 10061 { 10062 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 10063 0x1cf2, 0x0804) 10064 }, 10065 { 10066 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 10067 0x1cf2, 0x0805) 10068 }, 10069 { 10070 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 10071 0x1cf2, 0x0806) 10072 }, 10073 { 10074 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 10075 0x1cf2, 0x5445) 10076 }, 10077 { 10078 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 10079 0x1cf2, 0x5446) 10080 }, 10081 { 10082 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 10083 0x1cf2, 0x5447) 10084 }, 10085 { 10086 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 10087 0x1cf2, 0x5449) 10088 }, 10089 { 10090 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 10091 0x1cf2, 0x544a) 10092 }, 10093 { 10094 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 10095 0x1cf2, 0x544b) 10096 }, 10097 { 10098 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 10099 0x1cf2, 0x544d) 10100 }, 10101 { 10102 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 10103 0x1cf2, 0x544e) 10104 }, 10105 { 10106 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 10107 0x1cf2, 0x544f) 10108 }, 10109 { 10110 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 10111 0x1cf2, 0x54da) 10112 }, 10113 { 10114 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 10115 0x1cf2, 0x54db) 10116 }, 10117 { 10118 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 10119 0x1cf2, 0x54dc) 10120 }, 10121 { 10122 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 10123 0x1cf2, 0x0b27) 10124 }, 10125 { 10126 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 10127 0x1cf2, 0x0b29) 10128 }, 10129 { 10130 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 10131 0x1cf2, 0x0b45) 10132 }, 10133 { 10134 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 10135 0x1cc4, 0x0101) 10136 }, 10137 { 10138 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 10139 0x1cc4, 0x0201) 10140 }, 10141 { 10142 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 10143 PCI_VENDOR_ID_LENOVO, 0x0220) 10144 }, 10145 { 10146 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 10147 PCI_VENDOR_ID_LENOVO, 0x0221) 10148 }, 10149 { 10150 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 10151 PCI_VENDOR_ID_LENOVO, 0x0520) 10152 }, 10153 { 10154 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 10155 PCI_VENDOR_ID_LENOVO, 0x0522) 10156 }, 10157 { 10158 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 10159 PCI_VENDOR_ID_LENOVO, 0x0620) 10160 }, 10161 { 10162 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 10163 PCI_VENDOR_ID_LENOVO, 0x0621) 10164 }, 10165 { 10166 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 10167 PCI_VENDOR_ID_LENOVO, 0x0622) 10168 }, 10169 { 10170 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 10171 PCI_VENDOR_ID_LENOVO, 0x0623) 10172 }, 10173 { 10174 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 10175 0x1014, 0x0718) 10176 }, 10177 { 10178 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 10179 0x1137, 0x02f8) 10180 }, 10181 { 10182 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 10183 0x1137, 0x02f9) 10184 }, 10185 { 10186 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 10187 0x1137, 0x02fa) 10188 }, 10189 { 10190 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 10191 0x1e93, 0x1000) 10192 }, 10193 { 10194 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 10195 0x1e93, 0x1001) 10196 }, 10197 { 10198 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 10199 0x1e93, 0x1002) 10200 }, 10201 { 10202 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 10203 0x1e93, 0x1005) 10204 }, 10205 { 10206 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 10207 0x1f51, 0x1001) 10208 }, 10209 { 10210 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 10211 0x1f51, 0x1002) 10212 }, 10213 { 10214 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 10215 0x1f51, 0x1003) 10216 }, 10217 { 10218 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 10219 0x1f51, 0x1004) 10220 }, 10221 { 10222 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 10223 0x1f51, 0x1005) 10224 }, 10225 { 10226 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 10227 0x1f51, 0x1006) 10228 }, 10229 { 10230 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 10231 0x1f51, 0x1007) 10232 }, 10233 { 10234 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 10235 0x1f51, 0x1008) 10236 }, 10237 { 10238 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 10239 0x1f51, 0x1009) 10240 }, 10241 { 10242 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 10243 0x1f51, 0x100a) 10244 }, 10245 { 10246 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 10247 0x1f51, 0x100e) 10248 }, 10249 { 10250 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 10251 0x1f51, 0x100f) 10252 }, 10253 { 10254 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 10255 0x1f51, 0x1010) 10256 }, 10257 { 10258 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 10259 0x1f51, 0x1011) 10260 }, 10261 { 10262 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 10263 0x1f51, 0x1043) 10264 }, 10265 { 10266 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 10267 0x1f51, 0x1044) 10268 }, 10269 { 10270 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 10271 0x1f51, 0x1045) 10272 }, 10273 { 10274 PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, 10275 PCI_ANY_ID, PCI_ANY_ID) 10276 }, 10277 { 0 } 10278}; 10279 10280MODULE_DEVICE_TABLE(pci, pqi_pci_id_table); 10281 10282static struct pci_driver pqi_pci_driver = { 10283 .name = DRIVER_NAME_SHORT, 10284 .id_table = pqi_pci_id_table, 10285 .probe = pqi_pci_probe, 10286 .remove = pqi_pci_remove, 10287 .shutdown = pqi_shutdown, 10288#if defined(CONFIG_PM) 10289 .driver = { 10290 .pm = &pqi_pm_ops 10291 }, 10292#endif 10293}; 10294 10295static int __init pqi_init(void) 10296{ 10297 int rc; 10298 10299 pr_info(DRIVER_NAME "\n"); 10300 pqi_verify_structures(); 10301 sis_verify_structures(); 10302 10303 pqi_sas_transport_template = sas_attach_transport(&pqi_sas_transport_functions); 10304 if (!pqi_sas_transport_template) 10305 return -ENODEV; 10306 10307 pqi_process_module_params(); 10308 10309 rc = pci_register_driver(&pqi_pci_driver); 10310 if (rc) 10311 sas_release_transport(pqi_sas_transport_template); 10312 10313 return rc; 10314} 10315 10316static void __exit pqi_cleanup(void) 10317{ 10318 pci_unregister_driver(&pqi_pci_driver); 10319 sas_release_transport(pqi_sas_transport_template); 10320} 10321 10322module_init(pqi_init); 10323module_exit(pqi_cleanup); 10324 10325static void pqi_verify_structures(void) 10326{ 10327 BUILD_BUG_ON(offsetof(struct pqi_ctrl_registers, 10328 sis_host_to_ctrl_doorbell) != 0x20); 10329 BUILD_BUG_ON(offsetof(struct pqi_ctrl_registers, 10330 sis_interrupt_mask) != 0x34); 10331 BUILD_BUG_ON(offsetof(struct pqi_ctrl_registers, 10332 sis_ctrl_to_host_doorbell) != 0x9c); 10333 BUILD_BUG_ON(offsetof(struct pqi_ctrl_registers, 10334 sis_ctrl_to_host_doorbell_clear) != 0xa0); 10335 BUILD_BUG_ON(offsetof(struct pqi_ctrl_registers, 10336 sis_driver_scratch) != 0xb0); 10337 BUILD_BUG_ON(offsetof(struct pqi_ctrl_registers, 10338 sis_product_identifier) != 0xb4); 10339 BUILD_BUG_ON(offsetof(struct pqi_ctrl_registers, 10340 sis_firmware_status) != 0xbc); 10341 BUILD_BUG_ON(offsetof(struct pqi_ctrl_registers, 10342 sis_ctrl_shutdown_reason_code) != 0xcc); 10343 BUILD_BUG_ON(offsetof(struct pqi_ctrl_registers, 10344 sis_mailbox) != 0x1000); 10345 BUILD_BUG_ON(offsetof(struct pqi_ctrl_registers, 10346 pqi_registers) != 0x4000); 10347 10348 BUILD_BUG_ON(offsetof(struct pqi_iu_header, 10349 iu_type) != 0x0); 10350 BUILD_BUG_ON(offsetof(struct pqi_iu_header, 10351 iu_length) != 0x2); 10352 BUILD_BUG_ON(offsetof(struct pqi_iu_header, 10353 response_queue_id) != 0x4); 10354 BUILD_BUG_ON(offsetof(struct pqi_iu_header, 10355 driver_flags) != 0x6); 10356 BUILD_BUG_ON(sizeof(struct pqi_iu_header) != 0x8); 10357 10358 BUILD_BUG_ON(offsetof(struct pqi_aio_error_info, 10359 status) != 0x0); 10360 BUILD_BUG_ON(offsetof(struct pqi_aio_error_info, 10361 service_response) != 0x1); 10362 BUILD_BUG_ON(offsetof(struct pqi_aio_error_info, 10363 data_present) != 0x2); 10364 BUILD_BUG_ON(offsetof(struct pqi_aio_error_info, 10365 reserved) != 0x3); 10366 BUILD_BUG_ON(offsetof(struct pqi_aio_error_info, 10367 residual_count) != 0x4); 10368 BUILD_BUG_ON(offsetof(struct pqi_aio_error_info, 10369 data_length) != 0x8); 10370 BUILD_BUG_ON(offsetof(struct pqi_aio_error_info, 10371 reserved1) != 0xa); 10372 BUILD_BUG_ON(offsetof(struct pqi_aio_error_info, 10373 data) != 0xc); 10374 BUILD_BUG_ON(sizeof(struct pqi_aio_error_info) != 0x10c); 10375 10376 BUILD_BUG_ON(offsetof(struct pqi_raid_error_info, 10377 data_in_result) != 0x0); 10378 BUILD_BUG_ON(offsetof(struct pqi_raid_error_info, 10379 data_out_result) != 0x1); 10380 BUILD_BUG_ON(offsetof(struct pqi_raid_error_info, 10381 reserved) != 0x2); 10382 BUILD_BUG_ON(offsetof(struct pqi_raid_error_info, 10383 status) != 0x5); 10384 BUILD_BUG_ON(offsetof(struct pqi_raid_error_info, 10385 status_qualifier) != 0x6); 10386 BUILD_BUG_ON(offsetof(struct pqi_raid_error_info, 10387 sense_data_length) != 0x8); 10388 BUILD_BUG_ON(offsetof(struct pqi_raid_error_info, 10389 response_data_length) != 0xa); 10390 BUILD_BUG_ON(offsetof(struct pqi_raid_error_info, 10391 data_in_transferred) != 0xc); 10392 BUILD_BUG_ON(offsetof(struct pqi_raid_error_info, 10393 data_out_transferred) != 0x10); 10394 BUILD_BUG_ON(offsetof(struct pqi_raid_error_info, 10395 data) != 0x14); 10396 BUILD_BUG_ON(sizeof(struct pqi_raid_error_info) != 0x114); 10397 10398 BUILD_BUG_ON(offsetof(struct pqi_device_registers, 10399 signature) != 0x0); 10400 BUILD_BUG_ON(offsetof(struct pqi_device_registers, 10401 function_and_status_code) != 0x8); 10402 BUILD_BUG_ON(offsetof(struct pqi_device_registers, 10403 max_admin_iq_elements) != 0x10); 10404 BUILD_BUG_ON(offsetof(struct pqi_device_registers, 10405 max_admin_oq_elements) != 0x11); 10406 BUILD_BUG_ON(offsetof(struct pqi_device_registers, 10407 admin_iq_element_length) != 0x12); 10408 BUILD_BUG_ON(offsetof(struct pqi_device_registers, 10409 admin_oq_element_length) != 0x13); 10410 BUILD_BUG_ON(offsetof(struct pqi_device_registers, 10411 max_reset_timeout) != 0x14); 10412 BUILD_BUG_ON(offsetof(struct pqi_device_registers, 10413 legacy_intx_status) != 0x18); 10414 BUILD_BUG_ON(offsetof(struct pqi_device_registers, 10415 legacy_intx_mask_set) != 0x1c); 10416 BUILD_BUG_ON(offsetof(struct pqi_device_registers, 10417 legacy_intx_mask_clear) != 0x20); 10418 BUILD_BUG_ON(offsetof(struct pqi_device_registers, 10419 device_status) != 0x40); 10420 BUILD_BUG_ON(offsetof(struct pqi_device_registers, 10421 admin_iq_pi_offset) != 0x48); 10422 BUILD_BUG_ON(offsetof(struct pqi_device_registers, 10423 admin_oq_ci_offset) != 0x50); 10424 BUILD_BUG_ON(offsetof(struct pqi_device_registers, 10425 admin_iq_element_array_addr) != 0x58); 10426 BUILD_BUG_ON(offsetof(struct pqi_device_registers, 10427 admin_oq_element_array_addr) != 0x60); 10428 BUILD_BUG_ON(offsetof(struct pqi_device_registers, 10429 admin_iq_ci_addr) != 0x68); 10430 BUILD_BUG_ON(offsetof(struct pqi_device_registers, 10431 admin_oq_pi_addr) != 0x70); 10432 BUILD_BUG_ON(offsetof(struct pqi_device_registers, 10433 admin_iq_num_elements) != 0x78); 10434 BUILD_BUG_ON(offsetof(struct pqi_device_registers, 10435 admin_oq_num_elements) != 0x79); 10436 BUILD_BUG_ON(offsetof(struct pqi_device_registers, 10437 admin_queue_int_msg_num) != 0x7a); 10438 BUILD_BUG_ON(offsetof(struct pqi_device_registers, 10439 device_error) != 0x80); 10440 BUILD_BUG_ON(offsetof(struct pqi_device_registers, 10441 error_details) != 0x88); 10442 BUILD_BUG_ON(offsetof(struct pqi_device_registers, 10443 device_reset) != 0x90); 10444 BUILD_BUG_ON(offsetof(struct pqi_device_registers, 10445 power_action) != 0x94); 10446 BUILD_BUG_ON(sizeof(struct pqi_device_registers) != 0x100); 10447 10448 BUILD_BUG_ON(offsetof(struct pqi_general_admin_request, 10449 header.iu_type) != 0); 10450 BUILD_BUG_ON(offsetof(struct pqi_general_admin_request, 10451 header.iu_length) != 2); 10452 BUILD_BUG_ON(offsetof(struct pqi_general_admin_request, 10453 header.driver_flags) != 6); 10454 BUILD_BUG_ON(offsetof(struct pqi_general_admin_request, 10455 request_id) != 8); 10456 BUILD_BUG_ON(offsetof(struct pqi_general_admin_request, 10457 function_code) != 10); 10458 BUILD_BUG_ON(offsetof(struct pqi_general_admin_request, 10459 data.report_device_capability.buffer_length) != 44); 10460 BUILD_BUG_ON(offsetof(struct pqi_general_admin_request, 10461 data.report_device_capability.sg_descriptor) != 48); 10462 BUILD_BUG_ON(offsetof(struct pqi_general_admin_request, 10463 data.create_operational_iq.queue_id) != 12); 10464 BUILD_BUG_ON(offsetof(struct pqi_general_admin_request, 10465 data.create_operational_iq.element_array_addr) != 16); 10466 BUILD_BUG_ON(offsetof(struct pqi_general_admin_request, 10467 data.create_operational_iq.ci_addr) != 24); 10468 BUILD_BUG_ON(offsetof(struct pqi_general_admin_request, 10469 data.create_operational_iq.num_elements) != 32); 10470 BUILD_BUG_ON(offsetof(struct pqi_general_admin_request, 10471 data.create_operational_iq.element_length) != 34); 10472 BUILD_BUG_ON(offsetof(struct pqi_general_admin_request, 10473 data.create_operational_iq.queue_protocol) != 36); 10474 BUILD_BUG_ON(offsetof(struct pqi_general_admin_request, 10475 data.create_operational_oq.queue_id) != 12); 10476 BUILD_BUG_ON(offsetof(struct pqi_general_admin_request, 10477 data.create_operational_oq.element_array_addr) != 16); 10478 BUILD_BUG_ON(offsetof(struct pqi_general_admin_request, 10479 data.create_operational_oq.pi_addr) != 24); 10480 BUILD_BUG_ON(offsetof(struct pqi_general_admin_request, 10481 data.create_operational_oq.num_elements) != 32); 10482 BUILD_BUG_ON(offsetof(struct pqi_general_admin_request, 10483 data.create_operational_oq.element_length) != 34); 10484 BUILD_BUG_ON(offsetof(struct pqi_general_admin_request, 10485 data.create_operational_oq.queue_protocol) != 36); 10486 BUILD_BUG_ON(offsetof(struct pqi_general_admin_request, 10487 data.create_operational_oq.int_msg_num) != 40); 10488 BUILD_BUG_ON(offsetof(struct pqi_general_admin_request, 10489 data.create_operational_oq.coalescing_count) != 42); 10490 BUILD_BUG_ON(offsetof(struct pqi_general_admin_request, 10491 data.create_operational_oq.min_coalescing_time) != 44); 10492 BUILD_BUG_ON(offsetof(struct pqi_general_admin_request, 10493 data.create_operational_oq.max_coalescing_time) != 48); 10494 BUILD_BUG_ON(offsetof(struct pqi_general_admin_request, 10495 data.delete_operational_queue.queue_id) != 12); 10496 BUILD_BUG_ON(sizeof(struct pqi_general_admin_request) != 64); 10497 BUILD_BUG_ON(sizeof_field(struct pqi_general_admin_request, 10498 data.create_operational_iq) != 64 - 11); 10499 BUILD_BUG_ON(sizeof_field(struct pqi_general_admin_request, 10500 data.create_operational_oq) != 64 - 11); 10501 BUILD_BUG_ON(sizeof_field(struct pqi_general_admin_request, 10502 data.delete_operational_queue) != 64 - 11); 10503 10504 BUILD_BUG_ON(offsetof(struct pqi_general_admin_response, 10505 header.iu_type) != 0); 10506 BUILD_BUG_ON(offsetof(struct pqi_general_admin_response, 10507 header.iu_length) != 2); 10508 BUILD_BUG_ON(offsetof(struct pqi_general_admin_response, 10509 header.driver_flags) != 6); 10510 BUILD_BUG_ON(offsetof(struct pqi_general_admin_response, 10511 request_id) != 8); 10512 BUILD_BUG_ON(offsetof(struct pqi_general_admin_response, 10513 function_code) != 10); 10514 BUILD_BUG_ON(offsetof(struct pqi_general_admin_response, 10515 status) != 11); 10516 BUILD_BUG_ON(offsetof(struct pqi_general_admin_response, 10517 data.create_operational_iq.status_descriptor) != 12); 10518 BUILD_BUG_ON(offsetof(struct pqi_general_admin_response, 10519 data.create_operational_iq.iq_pi_offset) != 16); 10520 BUILD_BUG_ON(offsetof(struct pqi_general_admin_response, 10521 data.create_operational_oq.status_descriptor) != 12); 10522 BUILD_BUG_ON(offsetof(struct pqi_general_admin_response, 10523 data.create_operational_oq.oq_ci_offset) != 16); 10524 BUILD_BUG_ON(sizeof(struct pqi_general_admin_response) != 64); 10525 10526 BUILD_BUG_ON(offsetof(struct pqi_raid_path_request, 10527 header.iu_type) != 0); 10528 BUILD_BUG_ON(offsetof(struct pqi_raid_path_request, 10529 header.iu_length) != 2); 10530 BUILD_BUG_ON(offsetof(struct pqi_raid_path_request, 10531 header.response_queue_id) != 4); 10532 BUILD_BUG_ON(offsetof(struct pqi_raid_path_request, 10533 header.driver_flags) != 6); 10534 BUILD_BUG_ON(offsetof(struct pqi_raid_path_request, 10535 request_id) != 8); 10536 BUILD_BUG_ON(offsetof(struct pqi_raid_path_request, 10537 nexus_id) != 10); 10538 BUILD_BUG_ON(offsetof(struct pqi_raid_path_request, 10539 buffer_length) != 12); 10540 BUILD_BUG_ON(offsetof(struct pqi_raid_path_request, 10541 lun_number) != 16); 10542 BUILD_BUG_ON(offsetof(struct pqi_raid_path_request, 10543 protocol_specific) != 24); 10544 BUILD_BUG_ON(offsetof(struct pqi_raid_path_request, 10545 error_index) != 27); 10546 BUILD_BUG_ON(offsetof(struct pqi_raid_path_request, 10547 cdb) != 32); 10548 BUILD_BUG_ON(offsetof(struct pqi_raid_path_request, 10549 timeout) != 60); 10550 BUILD_BUG_ON(offsetof(struct pqi_raid_path_request, 10551 sg_descriptors) != 64); 10552 BUILD_BUG_ON(sizeof(struct pqi_raid_path_request) != 10553 PQI_OPERATIONAL_IQ_ELEMENT_LENGTH); 10554 10555 BUILD_BUG_ON(offsetof(struct pqi_aio_path_request, 10556 header.iu_type) != 0); 10557 BUILD_BUG_ON(offsetof(struct pqi_aio_path_request, 10558 header.iu_length) != 2); 10559 BUILD_BUG_ON(offsetof(struct pqi_aio_path_request, 10560 header.response_queue_id) != 4); 10561 BUILD_BUG_ON(offsetof(struct pqi_aio_path_request, 10562 header.driver_flags) != 6); 10563 BUILD_BUG_ON(offsetof(struct pqi_aio_path_request, 10564 request_id) != 8); 10565 BUILD_BUG_ON(offsetof(struct pqi_aio_path_request, 10566 nexus_id) != 12); 10567 BUILD_BUG_ON(offsetof(struct pqi_aio_path_request, 10568 buffer_length) != 16); 10569 BUILD_BUG_ON(offsetof(struct pqi_aio_path_request, 10570 data_encryption_key_index) != 22); 10571 BUILD_BUG_ON(offsetof(struct pqi_aio_path_request, 10572 encrypt_tweak_lower) != 24); 10573 BUILD_BUG_ON(offsetof(struct pqi_aio_path_request, 10574 encrypt_tweak_upper) != 28); 10575 BUILD_BUG_ON(offsetof(struct pqi_aio_path_request, 10576 cdb) != 32); 10577 BUILD_BUG_ON(offsetof(struct pqi_aio_path_request, 10578 error_index) != 48); 10579 BUILD_BUG_ON(offsetof(struct pqi_aio_path_request, 10580 num_sg_descriptors) != 50); 10581 BUILD_BUG_ON(offsetof(struct pqi_aio_path_request, 10582 cdb_length) != 51); 10583 BUILD_BUG_ON(offsetof(struct pqi_aio_path_request, 10584 lun_number) != 52); 10585 BUILD_BUG_ON(offsetof(struct pqi_aio_path_request, 10586 sg_descriptors) != 64); 10587 BUILD_BUG_ON(sizeof(struct pqi_aio_path_request) != 10588 PQI_OPERATIONAL_IQ_ELEMENT_LENGTH); 10589 10590 BUILD_BUG_ON(offsetof(struct pqi_io_response, 10591 header.iu_type) != 0); 10592 BUILD_BUG_ON(offsetof(struct pqi_io_response, 10593 header.iu_length) != 2); 10594 BUILD_BUG_ON(offsetof(struct pqi_io_response, 10595 request_id) != 8); 10596 BUILD_BUG_ON(offsetof(struct pqi_io_response, 10597 error_index) != 10); 10598 10599 BUILD_BUG_ON(offsetof(struct pqi_general_management_request, 10600 header.iu_type) != 0); 10601 BUILD_BUG_ON(offsetof(struct pqi_general_management_request, 10602 header.iu_length) != 2); 10603 BUILD_BUG_ON(offsetof(struct pqi_general_management_request, 10604 header.response_queue_id) != 4); 10605 BUILD_BUG_ON(offsetof(struct pqi_general_management_request, 10606 request_id) != 8); 10607 BUILD_BUG_ON(offsetof(struct pqi_general_management_request, 10608 data.report_event_configuration.buffer_length) != 12); 10609 BUILD_BUG_ON(offsetof(struct pqi_general_management_request, 10610 data.report_event_configuration.sg_descriptors) != 16); 10611 BUILD_BUG_ON(offsetof(struct pqi_general_management_request, 10612 data.set_event_configuration.global_event_oq_id) != 10); 10613 BUILD_BUG_ON(offsetof(struct pqi_general_management_request, 10614 data.set_event_configuration.buffer_length) != 12); 10615 BUILD_BUG_ON(offsetof(struct pqi_general_management_request, 10616 data.set_event_configuration.sg_descriptors) != 16); 10617 10618 BUILD_BUG_ON(offsetof(struct pqi_iu_layer_descriptor, 10619 max_inbound_iu_length) != 6); 10620 BUILD_BUG_ON(offsetof(struct pqi_iu_layer_descriptor, 10621 max_outbound_iu_length) != 14); 10622 BUILD_BUG_ON(sizeof(struct pqi_iu_layer_descriptor) != 16); 10623 10624 BUILD_BUG_ON(offsetof(struct pqi_device_capability, 10625 data_length) != 0); 10626 BUILD_BUG_ON(offsetof(struct pqi_device_capability, 10627 iq_arbitration_priority_support_bitmask) != 8); 10628 BUILD_BUG_ON(offsetof(struct pqi_device_capability, 10629 maximum_aw_a) != 9); 10630 BUILD_BUG_ON(offsetof(struct pqi_device_capability, 10631 maximum_aw_b) != 10); 10632 BUILD_BUG_ON(offsetof(struct pqi_device_capability, 10633 maximum_aw_c) != 11); 10634 BUILD_BUG_ON(offsetof(struct pqi_device_capability, 10635 max_inbound_queues) != 16); 10636 BUILD_BUG_ON(offsetof(struct pqi_device_capability, 10637 max_elements_per_iq) != 18); 10638 BUILD_BUG_ON(offsetof(struct pqi_device_capability, 10639 max_iq_element_length) != 24); 10640 BUILD_BUG_ON(offsetof(struct pqi_device_capability, 10641 min_iq_element_length) != 26); 10642 BUILD_BUG_ON(offsetof(struct pqi_device_capability, 10643 max_outbound_queues) != 30); 10644 BUILD_BUG_ON(offsetof(struct pqi_device_capability, 10645 max_elements_per_oq) != 32); 10646 BUILD_BUG_ON(offsetof(struct pqi_device_capability, 10647 intr_coalescing_time_granularity) != 34); 10648 BUILD_BUG_ON(offsetof(struct pqi_device_capability, 10649 max_oq_element_length) != 36); 10650 BUILD_BUG_ON(offsetof(struct pqi_device_capability, 10651 min_oq_element_length) != 38); 10652 BUILD_BUG_ON(offsetof(struct pqi_device_capability, 10653 iu_layer_descriptors) != 64); 10654 BUILD_BUG_ON(sizeof(struct pqi_device_capability) != 576); 10655 10656 BUILD_BUG_ON(offsetof(struct pqi_event_descriptor, 10657 event_type) != 0); 10658 BUILD_BUG_ON(offsetof(struct pqi_event_descriptor, 10659 oq_id) != 2); 10660 BUILD_BUG_ON(sizeof(struct pqi_event_descriptor) != 4); 10661 10662 BUILD_BUG_ON(offsetof(struct pqi_event_config, 10663 num_event_descriptors) != 2); 10664 BUILD_BUG_ON(offsetof(struct pqi_event_config, 10665 descriptors) != 4); 10666 10667 BUILD_BUG_ON(PQI_NUM_SUPPORTED_EVENTS != 10668 ARRAY_SIZE(pqi_supported_event_types)); 10669 10670 BUILD_BUG_ON(offsetof(struct pqi_event_response, 10671 header.iu_type) != 0); 10672 BUILD_BUG_ON(offsetof(struct pqi_event_response, 10673 header.iu_length) != 2); 10674 BUILD_BUG_ON(offsetof(struct pqi_event_response, 10675 event_type) != 8); 10676 BUILD_BUG_ON(offsetof(struct pqi_event_response, 10677 event_id) != 10); 10678 BUILD_BUG_ON(offsetof(struct pqi_event_response, 10679 additional_event_id) != 12); 10680 BUILD_BUG_ON(offsetof(struct pqi_event_response, 10681 data) != 16); 10682 BUILD_BUG_ON(sizeof(struct pqi_event_response) != 32); 10683 10684 BUILD_BUG_ON(offsetof(struct pqi_event_acknowledge_request, 10685 header.iu_type) != 0); 10686 BUILD_BUG_ON(offsetof(struct pqi_event_acknowledge_request, 10687 header.iu_length) != 2); 10688 BUILD_BUG_ON(offsetof(struct pqi_event_acknowledge_request, 10689 event_type) != 8); 10690 BUILD_BUG_ON(offsetof(struct pqi_event_acknowledge_request, 10691 event_id) != 10); 10692 BUILD_BUG_ON(offsetof(struct pqi_event_acknowledge_request, 10693 additional_event_id) != 12); 10694 BUILD_BUG_ON(sizeof(struct pqi_event_acknowledge_request) != 16); 10695 10696 BUILD_BUG_ON(offsetof(struct pqi_task_management_request, 10697 header.iu_type) != 0); 10698 BUILD_BUG_ON(offsetof(struct pqi_task_management_request, 10699 header.iu_length) != 2); 10700 BUILD_BUG_ON(offsetof(struct pqi_task_management_request, 10701 request_id) != 8); 10702 BUILD_BUG_ON(offsetof(struct pqi_task_management_request, 10703 nexus_id) != 10); 10704 BUILD_BUG_ON(offsetof(struct pqi_task_management_request, 10705 timeout) != 14); 10706 BUILD_BUG_ON(offsetof(struct pqi_task_management_request, 10707 lun_number) != 16); 10708 BUILD_BUG_ON(offsetof(struct pqi_task_management_request, 10709 protocol_specific) != 24); 10710 BUILD_BUG_ON(offsetof(struct pqi_task_management_request, 10711 outbound_queue_id_to_manage) != 26); 10712 BUILD_BUG_ON(offsetof(struct pqi_task_management_request, 10713 request_id_to_manage) != 28); 10714 BUILD_BUG_ON(offsetof(struct pqi_task_management_request, 10715 task_management_function) != 30); 10716 BUILD_BUG_ON(sizeof(struct pqi_task_management_request) != 32); 10717 10718 BUILD_BUG_ON(offsetof(struct pqi_task_management_response, 10719 header.iu_type) != 0); 10720 BUILD_BUG_ON(offsetof(struct pqi_task_management_response, 10721 header.iu_length) != 2); 10722 BUILD_BUG_ON(offsetof(struct pqi_task_management_response, 10723 request_id) != 8); 10724 BUILD_BUG_ON(offsetof(struct pqi_task_management_response, 10725 nexus_id) != 10); 10726 BUILD_BUG_ON(offsetof(struct pqi_task_management_response, 10727 additional_response_info) != 12); 10728 BUILD_BUG_ON(offsetof(struct pqi_task_management_response, 10729 response_code) != 15); 10730 BUILD_BUG_ON(sizeof(struct pqi_task_management_response) != 16); 10731 10732 BUILD_BUG_ON(offsetof(struct bmic_identify_controller, 10733 configured_logical_drive_count) != 0); 10734 BUILD_BUG_ON(offsetof(struct bmic_identify_controller, 10735 configuration_signature) != 1); 10736 BUILD_BUG_ON(offsetof(struct bmic_identify_controller, 10737 firmware_version_short) != 5); 10738 BUILD_BUG_ON(offsetof(struct bmic_identify_controller, 10739 extended_logical_unit_count) != 154); 10740 BUILD_BUG_ON(offsetof(struct bmic_identify_controller, 10741 firmware_build_number) != 190); 10742 BUILD_BUG_ON(offsetof(struct bmic_identify_controller, 10743 vendor_id) != 200); 10744 BUILD_BUG_ON(offsetof(struct bmic_identify_controller, 10745 product_id) != 208); 10746 BUILD_BUG_ON(offsetof(struct bmic_identify_controller, 10747 extra_controller_flags) != 286); 10748 BUILD_BUG_ON(offsetof(struct bmic_identify_controller, 10749 controller_mode) != 292); 10750 BUILD_BUG_ON(offsetof(struct bmic_identify_controller, 10751 spare_part_number) != 293); 10752 BUILD_BUG_ON(offsetof(struct bmic_identify_controller, 10753 firmware_version_long) != 325); 10754 10755 BUILD_BUG_ON(offsetof(struct bmic_identify_physical_device, 10756 phys_bay_in_box) != 115); 10757 BUILD_BUG_ON(offsetof(struct bmic_identify_physical_device, 10758 device_type) != 120); 10759 BUILD_BUG_ON(offsetof(struct bmic_identify_physical_device, 10760 redundant_path_present_map) != 1736); 10761 BUILD_BUG_ON(offsetof(struct bmic_identify_physical_device, 10762 active_path_number) != 1738); 10763 BUILD_BUG_ON(offsetof(struct bmic_identify_physical_device, 10764 alternate_paths_phys_connector) != 1739); 10765 BUILD_BUG_ON(offsetof(struct bmic_identify_physical_device, 10766 alternate_paths_phys_box_on_port) != 1755); 10767 BUILD_BUG_ON(offsetof(struct bmic_identify_physical_device, 10768 current_queue_depth_limit) != 1796); 10769 BUILD_BUG_ON(sizeof(struct bmic_identify_physical_device) != 2560); 10770 10771 BUILD_BUG_ON(sizeof(struct bmic_sense_feature_buffer_header) != 4); 10772 BUILD_BUG_ON(offsetof(struct bmic_sense_feature_buffer_header, 10773 page_code) != 0); 10774 BUILD_BUG_ON(offsetof(struct bmic_sense_feature_buffer_header, 10775 subpage_code) != 1); 10776 BUILD_BUG_ON(offsetof(struct bmic_sense_feature_buffer_header, 10777 buffer_length) != 2); 10778 10779 BUILD_BUG_ON(sizeof(struct bmic_sense_feature_page_header) != 4); 10780 BUILD_BUG_ON(offsetof(struct bmic_sense_feature_page_header, 10781 page_code) != 0); 10782 BUILD_BUG_ON(offsetof(struct bmic_sense_feature_page_header, 10783 subpage_code) != 1); 10784 BUILD_BUG_ON(offsetof(struct bmic_sense_feature_page_header, 10785 page_length) != 2); 10786 10787 BUILD_BUG_ON(sizeof(struct bmic_sense_feature_io_page_aio_subpage) 10788 != 18); 10789 BUILD_BUG_ON(offsetof(struct bmic_sense_feature_io_page_aio_subpage, 10790 header) != 0); 10791 BUILD_BUG_ON(offsetof(struct bmic_sense_feature_io_page_aio_subpage, 10792 firmware_read_support) != 4); 10793 BUILD_BUG_ON(offsetof(struct bmic_sense_feature_io_page_aio_subpage, 10794 driver_read_support) != 5); 10795 BUILD_BUG_ON(offsetof(struct bmic_sense_feature_io_page_aio_subpage, 10796 firmware_write_support) != 6); 10797 BUILD_BUG_ON(offsetof(struct bmic_sense_feature_io_page_aio_subpage, 10798 driver_write_support) != 7); 10799 BUILD_BUG_ON(offsetof(struct bmic_sense_feature_io_page_aio_subpage, 10800 max_transfer_encrypted_sas_sata) != 8); 10801 BUILD_BUG_ON(offsetof(struct bmic_sense_feature_io_page_aio_subpage, 10802 max_transfer_encrypted_nvme) != 10); 10803 BUILD_BUG_ON(offsetof(struct bmic_sense_feature_io_page_aio_subpage, 10804 max_write_raid_5_6) != 12); 10805 BUILD_BUG_ON(offsetof(struct bmic_sense_feature_io_page_aio_subpage, 10806 max_write_raid_1_10_2drive) != 14); 10807 BUILD_BUG_ON(offsetof(struct bmic_sense_feature_io_page_aio_subpage, 10808 max_write_raid_1_10_3drive) != 16); 10809 10810 BUILD_BUG_ON(PQI_ADMIN_IQ_NUM_ELEMENTS > 255); 10811 BUILD_BUG_ON(PQI_ADMIN_OQ_NUM_ELEMENTS > 255); 10812 BUILD_BUG_ON(PQI_ADMIN_IQ_ELEMENT_LENGTH % 10813 PQI_QUEUE_ELEMENT_LENGTH_ALIGNMENT != 0); 10814 BUILD_BUG_ON(PQI_ADMIN_OQ_ELEMENT_LENGTH % 10815 PQI_QUEUE_ELEMENT_LENGTH_ALIGNMENT != 0); 10816 BUILD_BUG_ON(PQI_OPERATIONAL_IQ_ELEMENT_LENGTH > 1048560); 10817 BUILD_BUG_ON(PQI_OPERATIONAL_IQ_ELEMENT_LENGTH % 10818 PQI_QUEUE_ELEMENT_LENGTH_ALIGNMENT != 0); 10819 BUILD_BUG_ON(PQI_OPERATIONAL_OQ_ELEMENT_LENGTH > 1048560); 10820 BUILD_BUG_ON(PQI_OPERATIONAL_OQ_ELEMENT_LENGTH % 10821 PQI_QUEUE_ELEMENT_LENGTH_ALIGNMENT != 0); 10822 10823 BUILD_BUG_ON(PQI_RESERVED_IO_SLOTS >= PQI_MAX_OUTSTANDING_REQUESTS); 10824 BUILD_BUG_ON(PQI_RESERVED_IO_SLOTS >= 10825 PQI_MAX_OUTSTANDING_REQUESTS_KDUMP); 10826} 10827