1 // SPDX-License-Identifier: GPL-2.0-or-later 2 /* 3 * Driver for Broadcom MPI3 Storage Controllers 4 * 5 * Copyright (C) 2017-2021 Broadcom Inc. 6 * (mailto: mpi3mr-linuxdrv.pdl@broadcom.com) 7 * 8 */ 9 10 #include "mpi3mr.h" 11 12 /* global driver scop variables */ 13 LIST_HEAD(mrioc_list); 14 DEFINE_SPINLOCK(mrioc_list_lock); 15 static int mrioc_ids; 16 static int warn_non_secure_ctlr; 17 18 MODULE_AUTHOR(MPI3MR_DRIVER_AUTHOR); 19 MODULE_DESCRIPTION(MPI3MR_DRIVER_DESC); 20 MODULE_LICENSE(MPI3MR_DRIVER_LICENSE); 21 MODULE_VERSION(MPI3MR_DRIVER_VERSION); 22 23 /* Module parameters*/ 24 int prot_mask = -1; 25 module_param(prot_mask, int, 0); 26 MODULE_PARM_DESC(prot_mask, "Host protection capabilities mask, def=0x07"); 27 28 static int prot_guard_mask = 3; 29 module_param(prot_guard_mask, int, 0); 30 MODULE_PARM_DESC(prot_guard_mask, " Host protection guard mask, def=3"); 31 static int logging_level; 32 module_param(logging_level, int, 0); 33 MODULE_PARM_DESC(logging_level, 34 " bits for enabling additional logging info (default=0)"); 35 36 /* Forward declarations*/ 37 /** 38 * mpi3mr_host_tag_for_scmd - Get host tag for a scmd 39 * @mrioc: Adapter instance reference 40 * @scmd: SCSI command reference 41 * 42 * Calculate the host tag based on block tag for a given scmd. 43 * 44 * Return: Valid host tag or MPI3MR_HOSTTAG_INVALID. 45 */ 46 static u16 mpi3mr_host_tag_for_scmd(struct mpi3mr_ioc *mrioc, 47 struct scsi_cmnd *scmd) 48 { 49 struct scmd_priv *priv = NULL; 50 u32 unique_tag; 51 u16 host_tag, hw_queue; 52 53 unique_tag = blk_mq_unique_tag(scsi_cmd_to_rq(scmd)); 54 55 hw_queue = blk_mq_unique_tag_to_hwq(unique_tag); 56 if (hw_queue >= mrioc->num_op_reply_q) 57 return MPI3MR_HOSTTAG_INVALID; 58 host_tag = blk_mq_unique_tag_to_tag(unique_tag); 59 60 if (WARN_ON(host_tag >= mrioc->max_host_ios)) 61 return MPI3MR_HOSTTAG_INVALID; 62 63 priv = scsi_cmd_priv(scmd); 64 /*host_tag 0 is invalid hence incrementing by 1*/ 65 priv->host_tag = host_tag + 1; 66 priv->scmd = scmd; 67 priv->in_lld_scope = 1; 68 priv->req_q_idx = hw_queue; 69 priv->meta_chain_idx = -1; 70 priv->chain_idx = -1; 71 priv->meta_sg_valid = 0; 72 return priv->host_tag; 73 } 74 75 /** 76 * mpi3mr_scmd_from_host_tag - Get SCSI command from host tag 77 * @mrioc: Adapter instance reference 78 * @host_tag: Host tag 79 * @qidx: Operational queue index 80 * 81 * Identify the block tag from the host tag and queue index and 82 * retrieve associated scsi command using scsi_host_find_tag(). 83 * 84 * Return: SCSI command reference or NULL. 85 */ 86 static struct scsi_cmnd *mpi3mr_scmd_from_host_tag( 87 struct mpi3mr_ioc *mrioc, u16 host_tag, u16 qidx) 88 { 89 struct scsi_cmnd *scmd = NULL; 90 struct scmd_priv *priv = NULL; 91 u32 unique_tag = host_tag - 1; 92 93 if (WARN_ON(host_tag > mrioc->max_host_ios)) 94 goto out; 95 96 unique_tag |= (qidx << BLK_MQ_UNIQUE_TAG_BITS); 97 98 scmd = scsi_host_find_tag(mrioc->shost, unique_tag); 99 if (scmd) { 100 priv = scsi_cmd_priv(scmd); 101 if (!priv->in_lld_scope) 102 scmd = NULL; 103 } 104 out: 105 return scmd; 106 } 107 108 /** 109 * mpi3mr_clear_scmd_priv - Cleanup SCSI command private date 110 * @mrioc: Adapter instance reference 111 * @scmd: SCSI command reference 112 * 113 * Invalidate the SCSI command private data to mark the command 114 * is not in LLD scope anymore. 115 * 116 * Return: Nothing. 117 */ 118 static void mpi3mr_clear_scmd_priv(struct mpi3mr_ioc *mrioc, 119 struct scsi_cmnd *scmd) 120 { 121 struct scmd_priv *priv = NULL; 122 123 priv = scsi_cmd_priv(scmd); 124 125 if (WARN_ON(priv->in_lld_scope == 0)) 126 return; 127 priv->host_tag = MPI3MR_HOSTTAG_INVALID; 128 priv->req_q_idx = 0xFFFF; 129 priv->scmd = NULL; 130 priv->in_lld_scope = 0; 131 priv->meta_sg_valid = 0; 132 if (priv->chain_idx >= 0) { 133 clear_bit(priv->chain_idx, mrioc->chain_bitmap); 134 priv->chain_idx = -1; 135 } 136 if (priv->meta_chain_idx >= 0) { 137 clear_bit(priv->meta_chain_idx, mrioc->chain_bitmap); 138 priv->meta_chain_idx = -1; 139 } 140 } 141 142 static void mpi3mr_dev_rmhs_send_tm(struct mpi3mr_ioc *mrioc, u16 handle, 143 struct mpi3mr_drv_cmd *cmdparam, u8 iou_rc); 144 static void mpi3mr_fwevt_worker(struct work_struct *work); 145 146 /** 147 * mpi3mr_fwevt_free - firmware event memory dealloctor 148 * @r: k reference pointer of the firmware event 149 * 150 * Free firmware event memory when no reference. 151 */ 152 static void mpi3mr_fwevt_free(struct kref *r) 153 { 154 kfree(container_of(r, struct mpi3mr_fwevt, ref_count)); 155 } 156 157 /** 158 * mpi3mr_fwevt_get - k reference incrementor 159 * @fwevt: Firmware event reference 160 * 161 * Increment firmware event reference count. 162 */ 163 static void mpi3mr_fwevt_get(struct mpi3mr_fwevt *fwevt) 164 { 165 kref_get(&fwevt->ref_count); 166 } 167 168 /** 169 * mpi3mr_fwevt_put - k reference decrementor 170 * @fwevt: Firmware event reference 171 * 172 * decrement firmware event reference count. 173 */ 174 static void mpi3mr_fwevt_put(struct mpi3mr_fwevt *fwevt) 175 { 176 kref_put(&fwevt->ref_count, mpi3mr_fwevt_free); 177 } 178 179 /** 180 * mpi3mr_alloc_fwevt - Allocate firmware event 181 * @len: length of firmware event data to allocate 182 * 183 * Allocate firmware event with required length and initialize 184 * the reference counter. 185 * 186 * Return: firmware event reference. 187 */ 188 static struct mpi3mr_fwevt *mpi3mr_alloc_fwevt(int len) 189 { 190 struct mpi3mr_fwevt *fwevt; 191 192 fwevt = kzalloc(sizeof(*fwevt) + len, GFP_ATOMIC); 193 if (!fwevt) 194 return NULL; 195 196 kref_init(&fwevt->ref_count); 197 return fwevt; 198 } 199 200 /** 201 * mpi3mr_fwevt_add_to_list - Add firmware event to the list 202 * @mrioc: Adapter instance reference 203 * @fwevt: Firmware event reference 204 * 205 * Add the given firmware event to the firmware event list. 206 * 207 * Return: Nothing. 208 */ 209 static void mpi3mr_fwevt_add_to_list(struct mpi3mr_ioc *mrioc, 210 struct mpi3mr_fwevt *fwevt) 211 { 212 unsigned long flags; 213 214 if (!mrioc->fwevt_worker_thread) 215 return; 216 217 spin_lock_irqsave(&mrioc->fwevt_lock, flags); 218 /* get fwevt reference count while adding it to fwevt_list */ 219 mpi3mr_fwevt_get(fwevt); 220 INIT_LIST_HEAD(&fwevt->list); 221 list_add_tail(&fwevt->list, &mrioc->fwevt_list); 222 INIT_WORK(&fwevt->work, mpi3mr_fwevt_worker); 223 /* get fwevt reference count while enqueueing it to worker queue */ 224 mpi3mr_fwevt_get(fwevt); 225 queue_work(mrioc->fwevt_worker_thread, &fwevt->work); 226 spin_unlock_irqrestore(&mrioc->fwevt_lock, flags); 227 } 228 229 /** 230 * mpi3mr_fwevt_del_from_list - Delete firmware event from list 231 * @mrioc: Adapter instance reference 232 * @fwevt: Firmware event reference 233 * 234 * Delete the given firmware event from the firmware event list. 235 * 236 * Return: Nothing. 237 */ 238 static void mpi3mr_fwevt_del_from_list(struct mpi3mr_ioc *mrioc, 239 struct mpi3mr_fwevt *fwevt) 240 { 241 unsigned long flags; 242 243 spin_lock_irqsave(&mrioc->fwevt_lock, flags); 244 if (!list_empty(&fwevt->list)) { 245 list_del_init(&fwevt->list); 246 /* 247 * Put fwevt reference count after 248 * removing it from fwevt_list 249 */ 250 mpi3mr_fwevt_put(fwevt); 251 } 252 spin_unlock_irqrestore(&mrioc->fwevt_lock, flags); 253 } 254 255 /** 256 * mpi3mr_dequeue_fwevt - Dequeue firmware event from the list 257 * @mrioc: Adapter instance reference 258 * 259 * Dequeue a firmware event from the firmware event list. 260 * 261 * Return: firmware event. 262 */ 263 static struct mpi3mr_fwevt *mpi3mr_dequeue_fwevt( 264 struct mpi3mr_ioc *mrioc) 265 { 266 unsigned long flags; 267 struct mpi3mr_fwevt *fwevt = NULL; 268 269 spin_lock_irqsave(&mrioc->fwevt_lock, flags); 270 if (!list_empty(&mrioc->fwevt_list)) { 271 fwevt = list_first_entry(&mrioc->fwevt_list, 272 struct mpi3mr_fwevt, list); 273 list_del_init(&fwevt->list); 274 /* 275 * Put fwevt reference count after 276 * removing it from fwevt_list 277 */ 278 mpi3mr_fwevt_put(fwevt); 279 } 280 spin_unlock_irqrestore(&mrioc->fwevt_lock, flags); 281 282 return fwevt; 283 } 284 285 /** 286 * mpi3mr_cleanup_fwevt_list - Cleanup firmware event list 287 * @mrioc: Adapter instance reference 288 * 289 * Flush all pending firmware events from the firmware event 290 * list. 291 * 292 * Return: Nothing. 293 */ 294 void mpi3mr_cleanup_fwevt_list(struct mpi3mr_ioc *mrioc) 295 { 296 struct mpi3mr_fwevt *fwevt = NULL; 297 298 if ((list_empty(&mrioc->fwevt_list) && !mrioc->current_event) || 299 !mrioc->fwevt_worker_thread) 300 return; 301 302 while ((fwevt = mpi3mr_dequeue_fwevt(mrioc)) || 303 (fwevt = mrioc->current_event)) { 304 /* 305 * Wait on the fwevt to complete. If this returns 1, then 306 * the event was never executed, and we need a put for the 307 * reference the work had on the fwevt. 308 * 309 * If it did execute, we wait for it to finish, and the put will 310 * happen from mpi3mr_process_fwevt() 311 */ 312 if (cancel_work_sync(&fwevt->work)) { 313 /* 314 * Put fwevt reference count after 315 * dequeuing it from worker queue 316 */ 317 mpi3mr_fwevt_put(fwevt); 318 /* 319 * Put fwevt reference count to neutralize 320 * kref_init increment 321 */ 322 mpi3mr_fwevt_put(fwevt); 323 } 324 } 325 } 326 327 /** 328 * mpi3mr_invalidate_devhandles -Invalidate device handles 329 * @mrioc: Adapter instance reference 330 * 331 * Invalidate the device handles in the target device structures 332 * . Called post reset prior to reinitializing the controller. 333 * 334 * Return: Nothing. 335 */ 336 void mpi3mr_invalidate_devhandles(struct mpi3mr_ioc *mrioc) 337 { 338 struct mpi3mr_tgt_dev *tgtdev; 339 struct mpi3mr_stgt_priv_data *tgt_priv; 340 341 list_for_each_entry(tgtdev, &mrioc->tgtdev_list, list) { 342 tgtdev->dev_handle = MPI3MR_INVALID_DEV_HANDLE; 343 if (tgtdev->starget && tgtdev->starget->hostdata) { 344 tgt_priv = tgtdev->starget->hostdata; 345 tgt_priv->dev_handle = MPI3MR_INVALID_DEV_HANDLE; 346 } 347 } 348 } 349 350 /** 351 * mpi3mr_print_scmd - print individual SCSI command 352 * @rq: Block request 353 * @data: Adapter instance reference 354 * @reserved: N/A. Currently not used 355 * 356 * Print the SCSI command details if it is in LLD scope. 357 * 358 * Return: true always. 359 */ 360 static bool mpi3mr_print_scmd(struct request *rq, 361 void *data, bool reserved) 362 { 363 struct mpi3mr_ioc *mrioc = (struct mpi3mr_ioc *)data; 364 struct scsi_cmnd *scmd = blk_mq_rq_to_pdu(rq); 365 struct scmd_priv *priv = NULL; 366 367 if (scmd) { 368 priv = scsi_cmd_priv(scmd); 369 if (!priv->in_lld_scope) 370 goto out; 371 372 ioc_info(mrioc, "%s :Host Tag = %d, qid = %d\n", 373 __func__, priv->host_tag, priv->req_q_idx + 1); 374 scsi_print_command(scmd); 375 } 376 377 out: 378 return(true); 379 } 380 381 /** 382 * mpi3mr_flush_scmd - Flush individual SCSI command 383 * @rq: Block request 384 * @data: Adapter instance reference 385 * @reserved: N/A. Currently not used 386 * 387 * Return the SCSI command to the upper layers if it is in LLD 388 * scope. 389 * 390 * Return: true always. 391 */ 392 393 static bool mpi3mr_flush_scmd(struct request *rq, 394 void *data, bool reserved) 395 { 396 struct mpi3mr_ioc *mrioc = (struct mpi3mr_ioc *)data; 397 struct scsi_cmnd *scmd = blk_mq_rq_to_pdu(rq); 398 struct scmd_priv *priv = NULL; 399 400 if (scmd) { 401 priv = scsi_cmd_priv(scmd); 402 if (!priv->in_lld_scope) 403 goto out; 404 405 if (priv->meta_sg_valid) 406 dma_unmap_sg(&mrioc->pdev->dev, scsi_prot_sglist(scmd), 407 scsi_prot_sg_count(scmd), scmd->sc_data_direction); 408 mpi3mr_clear_scmd_priv(mrioc, scmd); 409 scsi_dma_unmap(scmd); 410 scmd->result = DID_RESET << 16; 411 scsi_print_command(scmd); 412 scmd->scsi_done(scmd); 413 mrioc->flush_io_count++; 414 } 415 416 out: 417 return(true); 418 } 419 420 /** 421 * mpi3mr_flush_host_io - Flush host I/Os 422 * @mrioc: Adapter instance reference 423 * 424 * Flush all of the pending I/Os by calling 425 * blk_mq_tagset_busy_iter() for each possible tag. This is 426 * executed post controller reset 427 * 428 * Return: Nothing. 429 */ 430 void mpi3mr_flush_host_io(struct mpi3mr_ioc *mrioc) 431 { 432 struct Scsi_Host *shost = mrioc->shost; 433 434 mrioc->flush_io_count = 0; 435 ioc_info(mrioc, "%s :Flushing Host I/O cmds post reset\n", __func__); 436 blk_mq_tagset_busy_iter(&shost->tag_set, 437 mpi3mr_flush_scmd, (void *)mrioc); 438 ioc_info(mrioc, "%s :Flushed %d Host I/O cmds\n", __func__, 439 mrioc->flush_io_count); 440 } 441 442 /** 443 * mpi3mr_alloc_tgtdev - target device allocator 444 * 445 * Allocate target device instance and initialize the reference 446 * count 447 * 448 * Return: target device instance. 449 */ 450 static struct mpi3mr_tgt_dev *mpi3mr_alloc_tgtdev(void) 451 { 452 struct mpi3mr_tgt_dev *tgtdev; 453 454 tgtdev = kzalloc(sizeof(*tgtdev), GFP_ATOMIC); 455 if (!tgtdev) 456 return NULL; 457 kref_init(&tgtdev->ref_count); 458 return tgtdev; 459 } 460 461 /** 462 * mpi3mr_tgtdev_add_to_list -Add tgtdevice to the list 463 * @mrioc: Adapter instance reference 464 * @tgtdev: Target device 465 * 466 * Add the target device to the target device list 467 * 468 * Return: Nothing. 469 */ 470 static void mpi3mr_tgtdev_add_to_list(struct mpi3mr_ioc *mrioc, 471 struct mpi3mr_tgt_dev *tgtdev) 472 { 473 unsigned long flags; 474 475 spin_lock_irqsave(&mrioc->tgtdev_lock, flags); 476 mpi3mr_tgtdev_get(tgtdev); 477 INIT_LIST_HEAD(&tgtdev->list); 478 list_add_tail(&tgtdev->list, &mrioc->tgtdev_list); 479 spin_unlock_irqrestore(&mrioc->tgtdev_lock, flags); 480 } 481 482 /** 483 * mpi3mr_tgtdev_del_from_list -Delete tgtdevice from the list 484 * @mrioc: Adapter instance reference 485 * @tgtdev: Target device 486 * 487 * Remove the target device from the target device list 488 * 489 * Return: Nothing. 490 */ 491 static void mpi3mr_tgtdev_del_from_list(struct mpi3mr_ioc *mrioc, 492 struct mpi3mr_tgt_dev *tgtdev) 493 { 494 unsigned long flags; 495 496 spin_lock_irqsave(&mrioc->tgtdev_lock, flags); 497 if (!list_empty(&tgtdev->list)) { 498 list_del_init(&tgtdev->list); 499 mpi3mr_tgtdev_put(tgtdev); 500 } 501 spin_unlock_irqrestore(&mrioc->tgtdev_lock, flags); 502 } 503 504 /** 505 * __mpi3mr_get_tgtdev_by_handle -Get tgtdev from device handle 506 * @mrioc: Adapter instance reference 507 * @handle: Device handle 508 * 509 * Accessor to retrieve target device from the device handle. 510 * Non Lock version 511 * 512 * Return: Target device reference. 513 */ 514 static struct mpi3mr_tgt_dev *__mpi3mr_get_tgtdev_by_handle( 515 struct mpi3mr_ioc *mrioc, u16 handle) 516 { 517 struct mpi3mr_tgt_dev *tgtdev; 518 519 assert_spin_locked(&mrioc->tgtdev_lock); 520 list_for_each_entry(tgtdev, &mrioc->tgtdev_list, list) 521 if (tgtdev->dev_handle == handle) 522 goto found_tgtdev; 523 return NULL; 524 525 found_tgtdev: 526 mpi3mr_tgtdev_get(tgtdev); 527 return tgtdev; 528 } 529 530 /** 531 * mpi3mr_get_tgtdev_by_handle -Get tgtdev from device handle 532 * @mrioc: Adapter instance reference 533 * @handle: Device handle 534 * 535 * Accessor to retrieve target device from the device handle. 536 * Lock version 537 * 538 * Return: Target device reference. 539 */ 540 static struct mpi3mr_tgt_dev *mpi3mr_get_tgtdev_by_handle( 541 struct mpi3mr_ioc *mrioc, u16 handle) 542 { 543 struct mpi3mr_tgt_dev *tgtdev; 544 unsigned long flags; 545 546 spin_lock_irqsave(&mrioc->tgtdev_lock, flags); 547 tgtdev = __mpi3mr_get_tgtdev_by_handle(mrioc, handle); 548 spin_unlock_irqrestore(&mrioc->tgtdev_lock, flags); 549 return tgtdev; 550 } 551 552 /** 553 * __mpi3mr_get_tgtdev_by_perst_id -Get tgtdev from persist ID 554 * @mrioc: Adapter instance reference 555 * @persist_id: Persistent ID 556 * 557 * Accessor to retrieve target device from the Persistent ID. 558 * Non Lock version 559 * 560 * Return: Target device reference. 561 */ 562 static struct mpi3mr_tgt_dev *__mpi3mr_get_tgtdev_by_perst_id( 563 struct mpi3mr_ioc *mrioc, u16 persist_id) 564 { 565 struct mpi3mr_tgt_dev *tgtdev; 566 567 assert_spin_locked(&mrioc->tgtdev_lock); 568 list_for_each_entry(tgtdev, &mrioc->tgtdev_list, list) 569 if (tgtdev->perst_id == persist_id) 570 goto found_tgtdev; 571 return NULL; 572 573 found_tgtdev: 574 mpi3mr_tgtdev_get(tgtdev); 575 return tgtdev; 576 } 577 578 /** 579 * mpi3mr_get_tgtdev_by_perst_id -Get tgtdev from persistent ID 580 * @mrioc: Adapter instance reference 581 * @persist_id: Persistent ID 582 * 583 * Accessor to retrieve target device from the Persistent ID. 584 * Lock version 585 * 586 * Return: Target device reference. 587 */ 588 static struct mpi3mr_tgt_dev *mpi3mr_get_tgtdev_by_perst_id( 589 struct mpi3mr_ioc *mrioc, u16 persist_id) 590 { 591 struct mpi3mr_tgt_dev *tgtdev; 592 unsigned long flags; 593 594 spin_lock_irqsave(&mrioc->tgtdev_lock, flags); 595 tgtdev = __mpi3mr_get_tgtdev_by_perst_id(mrioc, persist_id); 596 spin_unlock_irqrestore(&mrioc->tgtdev_lock, flags); 597 return tgtdev; 598 } 599 600 /** 601 * __mpi3mr_get_tgtdev_from_tgtpriv -Get tgtdev from tgt private 602 * @mrioc: Adapter instance reference 603 * @tgt_priv: Target private data 604 * 605 * Accessor to return target device from the target private 606 * data. Non Lock version 607 * 608 * Return: Target device reference. 609 */ 610 static struct mpi3mr_tgt_dev *__mpi3mr_get_tgtdev_from_tgtpriv( 611 struct mpi3mr_ioc *mrioc, struct mpi3mr_stgt_priv_data *tgt_priv) 612 { 613 struct mpi3mr_tgt_dev *tgtdev; 614 615 assert_spin_locked(&mrioc->tgtdev_lock); 616 tgtdev = tgt_priv->tgt_dev; 617 if (tgtdev) 618 mpi3mr_tgtdev_get(tgtdev); 619 return tgtdev; 620 } 621 622 /** 623 * mpi3mr_remove_tgtdev_from_host - Remove dev from upper layers 624 * @mrioc: Adapter instance reference 625 * @tgtdev: Target device structure 626 * 627 * Checks whether the device is exposed to upper layers and if it 628 * is then remove the device from upper layers by calling 629 * scsi_remove_target(). 630 * 631 * Return: 0 on success, non zero on failure. 632 */ 633 static void mpi3mr_remove_tgtdev_from_host(struct mpi3mr_ioc *mrioc, 634 struct mpi3mr_tgt_dev *tgtdev) 635 { 636 struct mpi3mr_stgt_priv_data *tgt_priv; 637 638 ioc_info(mrioc, "%s :Removing handle(0x%04x), wwid(0x%016llx)\n", 639 __func__, tgtdev->dev_handle, (unsigned long long)tgtdev->wwid); 640 if (tgtdev->starget && tgtdev->starget->hostdata) { 641 tgt_priv = tgtdev->starget->hostdata; 642 tgt_priv->dev_handle = MPI3MR_INVALID_DEV_HANDLE; 643 } 644 645 if (tgtdev->starget) { 646 scsi_remove_target(&tgtdev->starget->dev); 647 tgtdev->host_exposed = 0; 648 } 649 ioc_info(mrioc, "%s :Removed handle(0x%04x), wwid(0x%016llx)\n", 650 __func__, tgtdev->dev_handle, (unsigned long long)tgtdev->wwid); 651 } 652 653 /** 654 * mpi3mr_report_tgtdev_to_host - Expose device to upper layers 655 * @mrioc: Adapter instance reference 656 * @perst_id: Persistent ID of the device 657 * 658 * Checks whether the device can be exposed to upper layers and 659 * if it is not then expose the device to upper layers by 660 * calling scsi_scan_target(). 661 * 662 * Return: 0 on success, non zero on failure. 663 */ 664 static int mpi3mr_report_tgtdev_to_host(struct mpi3mr_ioc *mrioc, 665 u16 perst_id) 666 { 667 int retval = 0; 668 struct mpi3mr_tgt_dev *tgtdev; 669 670 tgtdev = mpi3mr_get_tgtdev_by_perst_id(mrioc, perst_id); 671 if (!tgtdev) { 672 retval = -1; 673 goto out; 674 } 675 if (tgtdev->is_hidden) { 676 retval = -1; 677 goto out; 678 } 679 if (!tgtdev->host_exposed && !mrioc->reset_in_progress) { 680 tgtdev->host_exposed = 1; 681 scsi_scan_target(&mrioc->shost->shost_gendev, 0, 682 tgtdev->perst_id, 683 SCAN_WILD_CARD, SCSI_SCAN_INITIAL); 684 if (!tgtdev->starget) 685 tgtdev->host_exposed = 0; 686 } 687 out: 688 if (tgtdev) 689 mpi3mr_tgtdev_put(tgtdev); 690 691 return retval; 692 } 693 694 /** 695 * mpi3mr_change_queue_depth- Change QD callback handler 696 * @sdev: SCSI device reference 697 * @q_depth: Queue depth 698 * 699 * Validate and limit QD and call scsi_change_queue_depth. 700 * 701 * Return: return value of scsi_change_queue_depth 702 */ 703 static int mpi3mr_change_queue_depth(struct scsi_device *sdev, 704 int q_depth) 705 { 706 struct scsi_target *starget = scsi_target(sdev); 707 struct Scsi_Host *shost = dev_to_shost(&starget->dev); 708 int retval = 0; 709 710 if (!sdev->tagged_supported) 711 q_depth = 1; 712 if (q_depth > shost->can_queue) 713 q_depth = shost->can_queue; 714 else if (!q_depth) 715 q_depth = MPI3MR_DEFAULT_SDEV_QD; 716 retval = scsi_change_queue_depth(sdev, q_depth); 717 718 return retval; 719 } 720 721 /** 722 * mpi3mr_update_sdev - Update SCSI device information 723 * @sdev: SCSI device reference 724 * @data: target device reference 725 * 726 * This is an iterator function called for each SCSI device in a 727 * target to update the target specific information into each 728 * SCSI device. 729 * 730 * Return: Nothing. 731 */ 732 static void 733 mpi3mr_update_sdev(struct scsi_device *sdev, void *data) 734 { 735 struct mpi3mr_tgt_dev *tgtdev; 736 737 tgtdev = (struct mpi3mr_tgt_dev *)data; 738 if (!tgtdev) 739 return; 740 741 mpi3mr_change_queue_depth(sdev, tgtdev->q_depth); 742 switch (tgtdev->dev_type) { 743 case MPI3_DEVICE_DEVFORM_PCIE: 744 /*The block layer hw sector size = 512*/ 745 blk_queue_max_hw_sectors(sdev->request_queue, 746 tgtdev->dev_spec.pcie_inf.mdts / 512); 747 blk_queue_virt_boundary(sdev->request_queue, 748 ((1 << tgtdev->dev_spec.pcie_inf.pgsz) - 1)); 749 750 break; 751 default: 752 break; 753 } 754 } 755 756 /** 757 * mpi3mr_rfresh_tgtdevs - Refresh target device exposure 758 * @mrioc: Adapter instance reference 759 * 760 * This is executed post controller reset to identify any 761 * missing devices during reset and remove from the upper layers 762 * or expose any newly detected device to the upper layers. 763 * 764 * Return: Nothing. 765 */ 766 767 void mpi3mr_rfresh_tgtdevs(struct mpi3mr_ioc *mrioc) 768 { 769 struct mpi3mr_tgt_dev *tgtdev, *tgtdev_next; 770 771 list_for_each_entry_safe(tgtdev, tgtdev_next, &mrioc->tgtdev_list, 772 list) { 773 if ((tgtdev->dev_handle == MPI3MR_INVALID_DEV_HANDLE) && 774 tgtdev->host_exposed) { 775 mpi3mr_remove_tgtdev_from_host(mrioc, tgtdev); 776 mpi3mr_tgtdev_del_from_list(mrioc, tgtdev); 777 mpi3mr_tgtdev_put(tgtdev); 778 } 779 } 780 781 tgtdev = NULL; 782 list_for_each_entry(tgtdev, &mrioc->tgtdev_list, list) { 783 if ((tgtdev->dev_handle != MPI3MR_INVALID_DEV_HANDLE) && 784 !tgtdev->is_hidden && !tgtdev->host_exposed) 785 mpi3mr_report_tgtdev_to_host(mrioc, tgtdev->perst_id); 786 } 787 } 788 789 /** 790 * mpi3mr_update_tgtdev - DevStatusChange evt bottomhalf 791 * @mrioc: Adapter instance reference 792 * @tgtdev: Target device internal structure 793 * @dev_pg0: New device page0 794 * 795 * Update the information from the device page0 into the driver 796 * cached target device structure. 797 * 798 * Return: Nothing. 799 */ 800 static void mpi3mr_update_tgtdev(struct mpi3mr_ioc *mrioc, 801 struct mpi3mr_tgt_dev *tgtdev, struct mpi3_device_page0 *dev_pg0) 802 { 803 u16 flags = 0; 804 struct mpi3mr_stgt_priv_data *scsi_tgt_priv_data; 805 u8 prot_mask = 0; 806 807 tgtdev->perst_id = le16_to_cpu(dev_pg0->persistent_id); 808 tgtdev->dev_handle = le16_to_cpu(dev_pg0->dev_handle); 809 tgtdev->dev_type = dev_pg0->device_form; 810 tgtdev->encl_handle = le16_to_cpu(dev_pg0->enclosure_handle); 811 tgtdev->parent_handle = le16_to_cpu(dev_pg0->parent_dev_handle); 812 tgtdev->slot = le16_to_cpu(dev_pg0->slot); 813 tgtdev->q_depth = le16_to_cpu(dev_pg0->queue_depth); 814 tgtdev->wwid = le64_to_cpu(dev_pg0->wwid); 815 816 flags = le16_to_cpu(dev_pg0->flags); 817 tgtdev->is_hidden = (flags & MPI3_DEVICE0_FLAGS_HIDDEN); 818 819 if (tgtdev->starget && tgtdev->starget->hostdata) { 820 scsi_tgt_priv_data = (struct mpi3mr_stgt_priv_data *) 821 tgtdev->starget->hostdata; 822 scsi_tgt_priv_data->perst_id = tgtdev->perst_id; 823 scsi_tgt_priv_data->dev_handle = tgtdev->dev_handle; 824 scsi_tgt_priv_data->dev_type = tgtdev->dev_type; 825 } 826 827 switch (tgtdev->dev_type) { 828 case MPI3_DEVICE_DEVFORM_SAS_SATA: 829 { 830 struct mpi3_device0_sas_sata_format *sasinf = 831 &dev_pg0->device_specific.sas_sata_format; 832 u16 dev_info = le16_to_cpu(sasinf->device_info); 833 834 tgtdev->dev_spec.sas_sata_inf.dev_info = dev_info; 835 tgtdev->dev_spec.sas_sata_inf.sas_address = 836 le64_to_cpu(sasinf->sas_address); 837 if ((dev_info & MPI3_SAS_DEVICE_INFO_DEVICE_TYPE_MASK) != 838 MPI3_SAS_DEVICE_INFO_DEVICE_TYPE_END_DEVICE) 839 tgtdev->is_hidden = 1; 840 else if (!(dev_info & (MPI3_SAS_DEVICE_INFO_STP_SATA_TARGET | 841 MPI3_SAS_DEVICE_INFO_SSP_TARGET))) 842 tgtdev->is_hidden = 1; 843 break; 844 } 845 case MPI3_DEVICE_DEVFORM_PCIE: 846 { 847 struct mpi3_device0_pcie_format *pcieinf = 848 &dev_pg0->device_specific.pcie_format; 849 u16 dev_info = le16_to_cpu(pcieinf->device_info); 850 851 tgtdev->dev_spec.pcie_inf.capb = 852 le32_to_cpu(pcieinf->capabilities); 853 tgtdev->dev_spec.pcie_inf.mdts = MPI3MR_DEFAULT_MDTS; 854 /* 2^12 = 4096 */ 855 tgtdev->dev_spec.pcie_inf.pgsz = 12; 856 if (dev_pg0->access_status == MPI3_DEVICE0_ASTATUS_NO_ERRORS) { 857 tgtdev->dev_spec.pcie_inf.mdts = 858 le32_to_cpu(pcieinf->maximum_data_transfer_size); 859 tgtdev->dev_spec.pcie_inf.pgsz = pcieinf->page_size; 860 tgtdev->dev_spec.pcie_inf.reset_to = 861 pcieinf->controller_reset_to; 862 tgtdev->dev_spec.pcie_inf.abort_to = 863 pcieinf->nv_me_abort_to; 864 } 865 if (tgtdev->dev_spec.pcie_inf.mdts > (1024 * 1024)) 866 tgtdev->dev_spec.pcie_inf.mdts = (1024 * 1024); 867 if ((dev_info & MPI3_DEVICE0_PCIE_DEVICE_INFO_TYPE_MASK) != 868 MPI3_DEVICE0_PCIE_DEVICE_INFO_TYPE_NVME_DEVICE) 869 tgtdev->is_hidden = 1; 870 if (!mrioc->shost) 871 break; 872 prot_mask = scsi_host_get_prot(mrioc->shost); 873 if (prot_mask & SHOST_DIX_TYPE0_PROTECTION) { 874 scsi_host_set_prot(mrioc->shost, prot_mask & 0x77); 875 ioc_info(mrioc, 876 "%s : Disabling DIX0 prot capability\n", __func__); 877 ioc_info(mrioc, 878 "because HBA does not support DIX0 operation on NVME drives\n"); 879 } 880 break; 881 } 882 case MPI3_DEVICE_DEVFORM_VD: 883 { 884 struct mpi3_device0_vd_format *vdinf = 885 &dev_pg0->device_specific.vd_format; 886 887 tgtdev->dev_spec.vol_inf.state = vdinf->vd_state; 888 if (vdinf->vd_state == MPI3_DEVICE0_VD_STATE_OFFLINE) 889 tgtdev->is_hidden = 1; 890 break; 891 } 892 default: 893 break; 894 } 895 } 896 897 /** 898 * mpi3mr_devstatuschg_evt_bh - DevStatusChange evt bottomhalf 899 * @mrioc: Adapter instance reference 900 * @fwevt: Firmware event information. 901 * 902 * Process Device status Change event and based on device's new 903 * information, either expose the device to the upper layers, or 904 * remove the device from upper layers. 905 * 906 * Return: Nothing. 907 */ 908 static void mpi3mr_devstatuschg_evt_bh(struct mpi3mr_ioc *mrioc, 909 struct mpi3mr_fwevt *fwevt) 910 { 911 u16 dev_handle = 0; 912 u8 uhide = 0, delete = 0, cleanup = 0; 913 struct mpi3mr_tgt_dev *tgtdev = NULL; 914 struct mpi3_event_data_device_status_change *evtdata = 915 (struct mpi3_event_data_device_status_change *)fwevt->event_data; 916 917 dev_handle = le16_to_cpu(evtdata->dev_handle); 918 ioc_info(mrioc, 919 "%s :device status change: handle(0x%04x): reason code(0x%x)\n", 920 __func__, dev_handle, evtdata->reason_code); 921 switch (evtdata->reason_code) { 922 case MPI3_EVENT_DEV_STAT_RC_HIDDEN: 923 delete = 1; 924 break; 925 case MPI3_EVENT_DEV_STAT_RC_NOT_HIDDEN: 926 uhide = 1; 927 break; 928 case MPI3_EVENT_DEV_STAT_RC_VD_NOT_RESPONDING: 929 delete = 1; 930 cleanup = 1; 931 break; 932 default: 933 ioc_info(mrioc, "%s :Unhandled reason code(0x%x)\n", __func__, 934 evtdata->reason_code); 935 break; 936 } 937 938 tgtdev = mpi3mr_get_tgtdev_by_handle(mrioc, dev_handle); 939 if (!tgtdev) 940 goto out; 941 if (uhide) { 942 tgtdev->is_hidden = 0; 943 if (!tgtdev->host_exposed) 944 mpi3mr_report_tgtdev_to_host(mrioc, tgtdev->perst_id); 945 } 946 if (tgtdev->starget && tgtdev->starget->hostdata) { 947 if (delete) 948 mpi3mr_remove_tgtdev_from_host(mrioc, tgtdev); 949 } 950 if (cleanup) { 951 mpi3mr_tgtdev_del_from_list(mrioc, tgtdev); 952 mpi3mr_tgtdev_put(tgtdev); 953 } 954 955 out: 956 if (tgtdev) 957 mpi3mr_tgtdev_put(tgtdev); 958 } 959 960 /** 961 * mpi3mr_devinfochg_evt_bh - DeviceInfoChange evt bottomhalf 962 * @mrioc: Adapter instance reference 963 * @dev_pg0: New device page0 964 * 965 * Process Device Info Change event and based on device's new 966 * information, either expose the device to the upper layers, or 967 * remove the device from upper layers or update the details of 968 * the device. 969 * 970 * Return: Nothing. 971 */ 972 static void mpi3mr_devinfochg_evt_bh(struct mpi3mr_ioc *mrioc, 973 struct mpi3_device_page0 *dev_pg0) 974 { 975 struct mpi3mr_tgt_dev *tgtdev = NULL; 976 u16 dev_handle = 0, perst_id = 0; 977 978 perst_id = le16_to_cpu(dev_pg0->persistent_id); 979 dev_handle = le16_to_cpu(dev_pg0->dev_handle); 980 ioc_info(mrioc, 981 "%s :Device info change: handle(0x%04x): persist_id(0x%x)\n", 982 __func__, dev_handle, perst_id); 983 tgtdev = mpi3mr_get_tgtdev_by_handle(mrioc, dev_handle); 984 if (!tgtdev) 985 goto out; 986 mpi3mr_update_tgtdev(mrioc, tgtdev, dev_pg0); 987 if (!tgtdev->is_hidden && !tgtdev->host_exposed) 988 mpi3mr_report_tgtdev_to_host(mrioc, perst_id); 989 if (tgtdev->is_hidden && tgtdev->host_exposed) 990 mpi3mr_remove_tgtdev_from_host(mrioc, tgtdev); 991 if (!tgtdev->is_hidden && tgtdev->host_exposed && tgtdev->starget) 992 starget_for_each_device(tgtdev->starget, (void *)tgtdev, 993 mpi3mr_update_sdev); 994 out: 995 if (tgtdev) 996 mpi3mr_tgtdev_put(tgtdev); 997 } 998 999 /** 1000 * mpi3mr_sastopochg_evt_debug - SASTopoChange details 1001 * @mrioc: Adapter instance reference 1002 * @event_data: SAS topology change list event data 1003 * 1004 * Prints information about the SAS topology change event. 1005 * 1006 * Return: Nothing. 1007 */ 1008 static void 1009 mpi3mr_sastopochg_evt_debug(struct mpi3mr_ioc *mrioc, 1010 struct mpi3_event_data_sas_topology_change_list *event_data) 1011 { 1012 int i; 1013 u16 handle; 1014 u8 reason_code, phy_number; 1015 char *status_str = NULL; 1016 u8 link_rate, prev_link_rate; 1017 1018 switch (event_data->exp_status) { 1019 case MPI3_EVENT_SAS_TOPO_ES_NOT_RESPONDING: 1020 status_str = "remove"; 1021 break; 1022 case MPI3_EVENT_SAS_TOPO_ES_RESPONDING: 1023 status_str = "responding"; 1024 break; 1025 case MPI3_EVENT_SAS_TOPO_ES_DELAY_NOT_RESPONDING: 1026 status_str = "remove delay"; 1027 break; 1028 case MPI3_EVENT_SAS_TOPO_ES_NO_EXPANDER: 1029 status_str = "direct attached"; 1030 break; 1031 default: 1032 status_str = "unknown status"; 1033 break; 1034 } 1035 ioc_info(mrioc, "%s :sas topology change: (%s)\n", 1036 __func__, status_str); 1037 ioc_info(mrioc, 1038 "%s :\texpander_handle(0x%04x), enclosure_handle(0x%04x) start_phy(%02d), num_entries(%d)\n", 1039 __func__, le16_to_cpu(event_data->expander_dev_handle), 1040 le16_to_cpu(event_data->enclosure_handle), 1041 event_data->start_phy_num, event_data->num_entries); 1042 for (i = 0; i < event_data->num_entries; i++) { 1043 handle = le16_to_cpu(event_data->phy_entry[i].attached_dev_handle); 1044 if (!handle) 1045 continue; 1046 phy_number = event_data->start_phy_num + i; 1047 reason_code = event_data->phy_entry[i].status & 1048 MPI3_EVENT_SAS_TOPO_PHY_RC_MASK; 1049 switch (reason_code) { 1050 case MPI3_EVENT_SAS_TOPO_PHY_RC_TARG_NOT_RESPONDING: 1051 status_str = "target remove"; 1052 break; 1053 case MPI3_EVENT_SAS_TOPO_PHY_RC_DELAY_NOT_RESPONDING: 1054 status_str = "delay target remove"; 1055 break; 1056 case MPI3_EVENT_SAS_TOPO_PHY_RC_PHY_CHANGED: 1057 status_str = "link status change"; 1058 break; 1059 case MPI3_EVENT_SAS_TOPO_PHY_RC_NO_CHANGE: 1060 status_str = "link status no change"; 1061 break; 1062 case MPI3_EVENT_SAS_TOPO_PHY_RC_RESPONDING: 1063 status_str = "target responding"; 1064 break; 1065 default: 1066 status_str = "unknown"; 1067 break; 1068 } 1069 link_rate = event_data->phy_entry[i].link_rate >> 4; 1070 prev_link_rate = event_data->phy_entry[i].link_rate & 0xF; 1071 ioc_info(mrioc, 1072 "%s :\tphy(%02d), attached_handle(0x%04x): %s: link rate: new(0x%02x), old(0x%02x)\n", 1073 __func__, phy_number, handle, status_str, link_rate, 1074 prev_link_rate); 1075 } 1076 } 1077 1078 /** 1079 * mpi3mr_sastopochg_evt_bh - SASTopologyChange evt bottomhalf 1080 * @mrioc: Adapter instance reference 1081 * @fwevt: Firmware event reference 1082 * 1083 * Prints information about the SAS topology change event and 1084 * for "not responding" event code, removes the device from the 1085 * upper layers. 1086 * 1087 * Return: Nothing. 1088 */ 1089 static void mpi3mr_sastopochg_evt_bh(struct mpi3mr_ioc *mrioc, 1090 struct mpi3mr_fwevt *fwevt) 1091 { 1092 struct mpi3_event_data_sas_topology_change_list *event_data = 1093 (struct mpi3_event_data_sas_topology_change_list *)fwevt->event_data; 1094 int i; 1095 u16 handle; 1096 u8 reason_code; 1097 struct mpi3mr_tgt_dev *tgtdev = NULL; 1098 1099 mpi3mr_sastopochg_evt_debug(mrioc, event_data); 1100 1101 for (i = 0; i < event_data->num_entries; i++) { 1102 handle = le16_to_cpu(event_data->phy_entry[i].attached_dev_handle); 1103 if (!handle) 1104 continue; 1105 tgtdev = mpi3mr_get_tgtdev_by_handle(mrioc, handle); 1106 if (!tgtdev) 1107 continue; 1108 1109 reason_code = event_data->phy_entry[i].status & 1110 MPI3_EVENT_SAS_TOPO_PHY_RC_MASK; 1111 1112 switch (reason_code) { 1113 case MPI3_EVENT_SAS_TOPO_PHY_RC_TARG_NOT_RESPONDING: 1114 if (tgtdev->host_exposed) 1115 mpi3mr_remove_tgtdev_from_host(mrioc, tgtdev); 1116 mpi3mr_tgtdev_del_from_list(mrioc, tgtdev); 1117 mpi3mr_tgtdev_put(tgtdev); 1118 break; 1119 default: 1120 break; 1121 } 1122 if (tgtdev) 1123 mpi3mr_tgtdev_put(tgtdev); 1124 } 1125 } 1126 1127 /** 1128 * mpi3mr_pcietopochg_evt_debug - PCIeTopoChange details 1129 * @mrioc: Adapter instance reference 1130 * @event_data: PCIe topology change list event data 1131 * 1132 * Prints information about the PCIe topology change event. 1133 * 1134 * Return: Nothing. 1135 */ 1136 static void 1137 mpi3mr_pcietopochg_evt_debug(struct mpi3mr_ioc *mrioc, 1138 struct mpi3_event_data_pcie_topology_change_list *event_data) 1139 { 1140 int i; 1141 u16 handle; 1142 u16 reason_code; 1143 u8 port_number; 1144 char *status_str = NULL; 1145 u8 link_rate, prev_link_rate; 1146 1147 switch (event_data->switch_status) { 1148 case MPI3_EVENT_PCIE_TOPO_SS_NOT_RESPONDING: 1149 status_str = "remove"; 1150 break; 1151 case MPI3_EVENT_PCIE_TOPO_SS_RESPONDING: 1152 status_str = "responding"; 1153 break; 1154 case MPI3_EVENT_PCIE_TOPO_SS_DELAY_NOT_RESPONDING: 1155 status_str = "remove delay"; 1156 break; 1157 case MPI3_EVENT_PCIE_TOPO_SS_NO_PCIE_SWITCH: 1158 status_str = "direct attached"; 1159 break; 1160 default: 1161 status_str = "unknown status"; 1162 break; 1163 } 1164 ioc_info(mrioc, "%s :pcie topology change: (%s)\n", 1165 __func__, status_str); 1166 ioc_info(mrioc, 1167 "%s :\tswitch_handle(0x%04x), enclosure_handle(0x%04x) start_port(%02d), num_entries(%d)\n", 1168 __func__, le16_to_cpu(event_data->switch_dev_handle), 1169 le16_to_cpu(event_data->enclosure_handle), 1170 event_data->start_port_num, event_data->num_entries); 1171 for (i = 0; i < event_data->num_entries; i++) { 1172 handle = 1173 le16_to_cpu(event_data->port_entry[i].attached_dev_handle); 1174 if (!handle) 1175 continue; 1176 port_number = event_data->start_port_num + i; 1177 reason_code = event_data->port_entry[i].port_status; 1178 switch (reason_code) { 1179 case MPI3_EVENT_PCIE_TOPO_PS_NOT_RESPONDING: 1180 status_str = "target remove"; 1181 break; 1182 case MPI3_EVENT_PCIE_TOPO_PS_DELAY_NOT_RESPONDING: 1183 status_str = "delay target remove"; 1184 break; 1185 case MPI3_EVENT_PCIE_TOPO_PS_PORT_CHANGED: 1186 status_str = "link status change"; 1187 break; 1188 case MPI3_EVENT_PCIE_TOPO_PS_NO_CHANGE: 1189 status_str = "link status no change"; 1190 break; 1191 case MPI3_EVENT_PCIE_TOPO_PS_RESPONDING: 1192 status_str = "target responding"; 1193 break; 1194 default: 1195 status_str = "unknown"; 1196 break; 1197 } 1198 link_rate = event_data->port_entry[i].current_port_info & 1199 MPI3_EVENT_PCIE_TOPO_PI_RATE_MASK; 1200 prev_link_rate = event_data->port_entry[i].previous_port_info & 1201 MPI3_EVENT_PCIE_TOPO_PI_RATE_MASK; 1202 ioc_info(mrioc, 1203 "%s :\tport(%02d), attached_handle(0x%04x): %s: link rate: new(0x%02x), old(0x%02x)\n", 1204 __func__, port_number, handle, status_str, link_rate, 1205 prev_link_rate); 1206 } 1207 } 1208 1209 /** 1210 * mpi3mr_pcietopochg_evt_bh - PCIeTopologyChange evt bottomhalf 1211 * @mrioc: Adapter instance reference 1212 * @fwevt: Firmware event reference 1213 * 1214 * Prints information about the PCIe topology change event and 1215 * for "not responding" event code, removes the device from the 1216 * upper layers. 1217 * 1218 * Return: Nothing. 1219 */ 1220 static void mpi3mr_pcietopochg_evt_bh(struct mpi3mr_ioc *mrioc, 1221 struct mpi3mr_fwevt *fwevt) 1222 { 1223 struct mpi3_event_data_pcie_topology_change_list *event_data = 1224 (struct mpi3_event_data_pcie_topology_change_list *)fwevt->event_data; 1225 int i; 1226 u16 handle; 1227 u8 reason_code; 1228 struct mpi3mr_tgt_dev *tgtdev = NULL; 1229 1230 mpi3mr_pcietopochg_evt_debug(mrioc, event_data); 1231 1232 for (i = 0; i < event_data->num_entries; i++) { 1233 handle = 1234 le16_to_cpu(event_data->port_entry[i].attached_dev_handle); 1235 if (!handle) 1236 continue; 1237 tgtdev = mpi3mr_get_tgtdev_by_handle(mrioc, handle); 1238 if (!tgtdev) 1239 continue; 1240 1241 reason_code = event_data->port_entry[i].port_status; 1242 1243 switch (reason_code) { 1244 case MPI3_EVENT_PCIE_TOPO_PS_NOT_RESPONDING: 1245 if (tgtdev->host_exposed) 1246 mpi3mr_remove_tgtdev_from_host(mrioc, tgtdev); 1247 mpi3mr_tgtdev_del_from_list(mrioc, tgtdev); 1248 mpi3mr_tgtdev_put(tgtdev); 1249 break; 1250 default: 1251 break; 1252 } 1253 if (tgtdev) 1254 mpi3mr_tgtdev_put(tgtdev); 1255 } 1256 } 1257 1258 /** 1259 * mpi3mr_fwevt_bh - Firmware event bottomhalf handler 1260 * @mrioc: Adapter instance reference 1261 * @fwevt: Firmware event reference 1262 * 1263 * Identifies the firmware event and calls corresponding bottomg 1264 * half handler and sends event acknowledgment if required. 1265 * 1266 * Return: Nothing. 1267 */ 1268 static void mpi3mr_fwevt_bh(struct mpi3mr_ioc *mrioc, 1269 struct mpi3mr_fwevt *fwevt) 1270 { 1271 mrioc->current_event = fwevt; 1272 mpi3mr_fwevt_del_from_list(mrioc, fwevt); 1273 1274 if (mrioc->stop_drv_processing) 1275 goto out; 1276 1277 if (!fwevt->process_evt) 1278 goto evt_ack; 1279 1280 switch (fwevt->event_id) { 1281 case MPI3_EVENT_DEVICE_ADDED: 1282 { 1283 struct mpi3_device_page0 *dev_pg0 = 1284 (struct mpi3_device_page0 *)fwevt->event_data; 1285 mpi3mr_report_tgtdev_to_host(mrioc, 1286 le16_to_cpu(dev_pg0->persistent_id)); 1287 break; 1288 } 1289 case MPI3_EVENT_DEVICE_INFO_CHANGED: 1290 { 1291 mpi3mr_devinfochg_evt_bh(mrioc, 1292 (struct mpi3_device_page0 *)fwevt->event_data); 1293 break; 1294 } 1295 case MPI3_EVENT_DEVICE_STATUS_CHANGE: 1296 { 1297 mpi3mr_devstatuschg_evt_bh(mrioc, fwevt); 1298 break; 1299 } 1300 case MPI3_EVENT_SAS_TOPOLOGY_CHANGE_LIST: 1301 { 1302 mpi3mr_sastopochg_evt_bh(mrioc, fwevt); 1303 break; 1304 } 1305 case MPI3_EVENT_PCIE_TOPOLOGY_CHANGE_LIST: 1306 { 1307 mpi3mr_pcietopochg_evt_bh(mrioc, fwevt); 1308 break; 1309 } 1310 default: 1311 break; 1312 } 1313 1314 evt_ack: 1315 if (fwevt->send_ack) 1316 mpi3mr_send_event_ack(mrioc, fwevt->event_id, 1317 fwevt->evt_ctx); 1318 out: 1319 /* Put fwevt reference count to neutralize kref_init increment */ 1320 mpi3mr_fwevt_put(fwevt); 1321 mrioc->current_event = NULL; 1322 } 1323 1324 /** 1325 * mpi3mr_fwevt_worker - Firmware event worker 1326 * @work: Work struct containing firmware event 1327 * 1328 * Extracts the firmware event and calls mpi3mr_fwevt_bh. 1329 * 1330 * Return: Nothing. 1331 */ 1332 static void mpi3mr_fwevt_worker(struct work_struct *work) 1333 { 1334 struct mpi3mr_fwevt *fwevt = container_of(work, struct mpi3mr_fwevt, 1335 work); 1336 mpi3mr_fwevt_bh(fwevt->mrioc, fwevt); 1337 /* 1338 * Put fwevt reference count after 1339 * dequeuing it from worker queue 1340 */ 1341 mpi3mr_fwevt_put(fwevt); 1342 } 1343 1344 /** 1345 * mpi3mr_create_tgtdev - Create and add a target device 1346 * @mrioc: Adapter instance reference 1347 * @dev_pg0: Device Page 0 data 1348 * 1349 * If the device specified by the device page 0 data is not 1350 * present in the driver's internal list, allocate the memory 1351 * for the device, populate the data and add to the list, else 1352 * update the device data. The key is persistent ID. 1353 * 1354 * Return: 0 on success, -ENOMEM on memory allocation failure 1355 */ 1356 static int mpi3mr_create_tgtdev(struct mpi3mr_ioc *mrioc, 1357 struct mpi3_device_page0 *dev_pg0) 1358 { 1359 int retval = 0; 1360 struct mpi3mr_tgt_dev *tgtdev = NULL; 1361 u16 perst_id = 0; 1362 1363 perst_id = le16_to_cpu(dev_pg0->persistent_id); 1364 tgtdev = mpi3mr_get_tgtdev_by_perst_id(mrioc, perst_id); 1365 if (tgtdev) { 1366 mpi3mr_update_tgtdev(mrioc, tgtdev, dev_pg0); 1367 mpi3mr_tgtdev_put(tgtdev); 1368 } else { 1369 tgtdev = mpi3mr_alloc_tgtdev(); 1370 if (!tgtdev) 1371 return -ENOMEM; 1372 mpi3mr_update_tgtdev(mrioc, tgtdev, dev_pg0); 1373 mpi3mr_tgtdev_add_to_list(mrioc, tgtdev); 1374 } 1375 1376 return retval; 1377 } 1378 1379 /** 1380 * mpi3mr_flush_delayed_rmhs_list - Flush pending commands 1381 * @mrioc: Adapter instance reference 1382 * 1383 * Flush pending commands in the delayed removal handshake list 1384 * due to a controller reset or driver removal as a cleanup. 1385 * 1386 * Return: Nothing 1387 */ 1388 void mpi3mr_flush_delayed_rmhs_list(struct mpi3mr_ioc *mrioc) 1389 { 1390 struct delayed_dev_rmhs_node *_rmhs_node; 1391 1392 while (!list_empty(&mrioc->delayed_rmhs_list)) { 1393 _rmhs_node = list_entry(mrioc->delayed_rmhs_list.next, 1394 struct delayed_dev_rmhs_node, list); 1395 list_del(&_rmhs_node->list); 1396 kfree(_rmhs_node); 1397 } 1398 } 1399 1400 /** 1401 * mpi3mr_dev_rmhs_complete_iou - Device removal IOUC completion 1402 * @mrioc: Adapter instance reference 1403 * @drv_cmd: Internal command tracker 1404 * 1405 * Issues a target reset TM to the firmware from the device 1406 * removal TM pend list or retry the removal handshake sequence 1407 * based on the IOU control request IOC status. 1408 * 1409 * Return: Nothing 1410 */ 1411 static void mpi3mr_dev_rmhs_complete_iou(struct mpi3mr_ioc *mrioc, 1412 struct mpi3mr_drv_cmd *drv_cmd) 1413 { 1414 u16 cmd_idx = drv_cmd->host_tag - MPI3MR_HOSTTAG_DEVRMCMD_MIN; 1415 struct delayed_dev_rmhs_node *delayed_dev_rmhs = NULL; 1416 1417 ioc_info(mrioc, 1418 "%s :dev_rmhs_iouctrl_complete:handle(0x%04x), ioc_status(0x%04x), loginfo(0x%08x)\n", 1419 __func__, drv_cmd->dev_handle, drv_cmd->ioc_status, 1420 drv_cmd->ioc_loginfo); 1421 if (drv_cmd->ioc_status != MPI3_IOCSTATUS_SUCCESS) { 1422 if (drv_cmd->retry_count < MPI3MR_DEV_RMHS_RETRY_COUNT) { 1423 drv_cmd->retry_count++; 1424 ioc_info(mrioc, 1425 "%s :dev_rmhs_iouctrl_complete: handle(0x%04x)retrying handshake retry=%d\n", 1426 __func__, drv_cmd->dev_handle, 1427 drv_cmd->retry_count); 1428 mpi3mr_dev_rmhs_send_tm(mrioc, drv_cmd->dev_handle, 1429 drv_cmd, drv_cmd->iou_rc); 1430 return; 1431 } 1432 ioc_err(mrioc, 1433 "%s :dev removal handshake failed after all retries: handle(0x%04x)\n", 1434 __func__, drv_cmd->dev_handle); 1435 } else { 1436 ioc_info(mrioc, 1437 "%s :dev removal handshake completed successfully: handle(0x%04x)\n", 1438 __func__, drv_cmd->dev_handle); 1439 clear_bit(drv_cmd->dev_handle, mrioc->removepend_bitmap); 1440 } 1441 1442 if (!list_empty(&mrioc->delayed_rmhs_list)) { 1443 delayed_dev_rmhs = list_entry(mrioc->delayed_rmhs_list.next, 1444 struct delayed_dev_rmhs_node, list); 1445 drv_cmd->dev_handle = delayed_dev_rmhs->handle; 1446 drv_cmd->retry_count = 0; 1447 drv_cmd->iou_rc = delayed_dev_rmhs->iou_rc; 1448 ioc_info(mrioc, 1449 "%s :dev_rmhs_iouctrl_complete: processing delayed TM: handle(0x%04x)\n", 1450 __func__, drv_cmd->dev_handle); 1451 mpi3mr_dev_rmhs_send_tm(mrioc, drv_cmd->dev_handle, drv_cmd, 1452 drv_cmd->iou_rc); 1453 list_del(&delayed_dev_rmhs->list); 1454 kfree(delayed_dev_rmhs); 1455 return; 1456 } 1457 drv_cmd->state = MPI3MR_CMD_NOTUSED; 1458 drv_cmd->callback = NULL; 1459 drv_cmd->retry_count = 0; 1460 drv_cmd->dev_handle = MPI3MR_INVALID_DEV_HANDLE; 1461 clear_bit(cmd_idx, mrioc->devrem_bitmap); 1462 } 1463 1464 /** 1465 * mpi3mr_dev_rmhs_complete_tm - Device removal TM completion 1466 * @mrioc: Adapter instance reference 1467 * @drv_cmd: Internal command tracker 1468 * 1469 * Issues a target reset TM to the firmware from the device 1470 * removal TM pend list or issue IO unit control request as 1471 * part of device removal or hidden acknowledgment handshake. 1472 * 1473 * Return: Nothing 1474 */ 1475 static void mpi3mr_dev_rmhs_complete_tm(struct mpi3mr_ioc *mrioc, 1476 struct mpi3mr_drv_cmd *drv_cmd) 1477 { 1478 struct mpi3_iounit_control_request iou_ctrl; 1479 u16 cmd_idx = drv_cmd->host_tag - MPI3MR_HOSTTAG_DEVRMCMD_MIN; 1480 struct mpi3_scsi_task_mgmt_reply *tm_reply = NULL; 1481 int retval; 1482 1483 if (drv_cmd->state & MPI3MR_CMD_REPLY_VALID) 1484 tm_reply = (struct mpi3_scsi_task_mgmt_reply *)drv_cmd->reply; 1485 1486 if (tm_reply) 1487 pr_info(IOCNAME 1488 "dev_rmhs_tr_complete:handle(0x%04x), ioc_status(0x%04x), loginfo(0x%08x), term_count(%d)\n", 1489 mrioc->name, drv_cmd->dev_handle, drv_cmd->ioc_status, 1490 drv_cmd->ioc_loginfo, 1491 le32_to_cpu(tm_reply->termination_count)); 1492 1493 pr_info(IOCNAME "Issuing IOU CTL: handle(0x%04x) dev_rmhs idx(%d)\n", 1494 mrioc->name, drv_cmd->dev_handle, cmd_idx); 1495 1496 memset(&iou_ctrl, 0, sizeof(iou_ctrl)); 1497 1498 drv_cmd->state = MPI3MR_CMD_PENDING; 1499 drv_cmd->is_waiting = 0; 1500 drv_cmd->callback = mpi3mr_dev_rmhs_complete_iou; 1501 iou_ctrl.operation = drv_cmd->iou_rc; 1502 iou_ctrl.param16[0] = cpu_to_le16(drv_cmd->dev_handle); 1503 iou_ctrl.host_tag = cpu_to_le16(drv_cmd->host_tag); 1504 iou_ctrl.function = MPI3_FUNCTION_IO_UNIT_CONTROL; 1505 1506 retval = mpi3mr_admin_request_post(mrioc, &iou_ctrl, sizeof(iou_ctrl), 1507 1); 1508 if (retval) { 1509 pr_err(IOCNAME "Issue DevRmHsTMIOUCTL: Admin post failed\n", 1510 mrioc->name); 1511 goto out_failed; 1512 } 1513 1514 return; 1515 out_failed: 1516 drv_cmd->state = MPI3MR_CMD_NOTUSED; 1517 drv_cmd->callback = NULL; 1518 drv_cmd->dev_handle = MPI3MR_INVALID_DEV_HANDLE; 1519 drv_cmd->retry_count = 0; 1520 clear_bit(cmd_idx, mrioc->devrem_bitmap); 1521 } 1522 1523 /** 1524 * mpi3mr_dev_rmhs_send_tm - Issue TM for device removal 1525 * @mrioc: Adapter instance reference 1526 * @handle: Device handle 1527 * @cmdparam: Internal command tracker 1528 * @iou_rc: IO unit reason code 1529 * 1530 * Issues a target reset TM to the firmware or add it to a pend 1531 * list as part of device removal or hidden acknowledgment 1532 * handshake. 1533 * 1534 * Return: Nothing 1535 */ 1536 static void mpi3mr_dev_rmhs_send_tm(struct mpi3mr_ioc *mrioc, u16 handle, 1537 struct mpi3mr_drv_cmd *cmdparam, u8 iou_rc) 1538 { 1539 struct mpi3_scsi_task_mgmt_request tm_req; 1540 int retval = 0; 1541 u16 cmd_idx = MPI3MR_NUM_DEVRMCMD; 1542 u8 retrycount = 5; 1543 struct mpi3mr_drv_cmd *drv_cmd = cmdparam; 1544 struct delayed_dev_rmhs_node *delayed_dev_rmhs = NULL; 1545 1546 if (drv_cmd) 1547 goto issue_cmd; 1548 do { 1549 cmd_idx = find_first_zero_bit(mrioc->devrem_bitmap, 1550 MPI3MR_NUM_DEVRMCMD); 1551 if (cmd_idx < MPI3MR_NUM_DEVRMCMD) { 1552 if (!test_and_set_bit(cmd_idx, mrioc->devrem_bitmap)) 1553 break; 1554 cmd_idx = MPI3MR_NUM_DEVRMCMD; 1555 } 1556 } while (retrycount--); 1557 1558 if (cmd_idx >= MPI3MR_NUM_DEVRMCMD) { 1559 delayed_dev_rmhs = kzalloc(sizeof(*delayed_dev_rmhs), 1560 GFP_ATOMIC); 1561 if (!delayed_dev_rmhs) 1562 return; 1563 INIT_LIST_HEAD(&delayed_dev_rmhs->list); 1564 delayed_dev_rmhs->handle = handle; 1565 delayed_dev_rmhs->iou_rc = iou_rc; 1566 list_add_tail(&delayed_dev_rmhs->list, 1567 &mrioc->delayed_rmhs_list); 1568 ioc_info(mrioc, "%s :DevRmHs: tr:handle(0x%04x) is postponed\n", 1569 __func__, handle); 1570 return; 1571 } 1572 drv_cmd = &mrioc->dev_rmhs_cmds[cmd_idx]; 1573 1574 issue_cmd: 1575 cmd_idx = drv_cmd->host_tag - MPI3MR_HOSTTAG_DEVRMCMD_MIN; 1576 ioc_info(mrioc, 1577 "%s :Issuing TR TM: for devhandle 0x%04x with dev_rmhs %d\n", 1578 __func__, handle, cmd_idx); 1579 1580 memset(&tm_req, 0, sizeof(tm_req)); 1581 if (drv_cmd->state & MPI3MR_CMD_PENDING) { 1582 ioc_err(mrioc, "%s :Issue TM: Command is in use\n", __func__); 1583 goto out; 1584 } 1585 drv_cmd->state = MPI3MR_CMD_PENDING; 1586 drv_cmd->is_waiting = 0; 1587 drv_cmd->callback = mpi3mr_dev_rmhs_complete_tm; 1588 drv_cmd->dev_handle = handle; 1589 drv_cmd->iou_rc = iou_rc; 1590 tm_req.dev_handle = cpu_to_le16(handle); 1591 tm_req.task_type = MPI3_SCSITASKMGMT_TASKTYPE_TARGET_RESET; 1592 tm_req.host_tag = cpu_to_le16(drv_cmd->host_tag); 1593 tm_req.task_host_tag = cpu_to_le16(MPI3MR_HOSTTAG_INVALID); 1594 tm_req.function = MPI3_FUNCTION_SCSI_TASK_MGMT; 1595 1596 set_bit(handle, mrioc->removepend_bitmap); 1597 retval = mpi3mr_admin_request_post(mrioc, &tm_req, sizeof(tm_req), 1); 1598 if (retval) { 1599 ioc_err(mrioc, "%s :Issue DevRmHsTM: Admin Post failed\n", 1600 __func__); 1601 goto out_failed; 1602 } 1603 out: 1604 return; 1605 out_failed: 1606 drv_cmd->state = MPI3MR_CMD_NOTUSED; 1607 drv_cmd->callback = NULL; 1608 drv_cmd->dev_handle = MPI3MR_INVALID_DEV_HANDLE; 1609 drv_cmd->retry_count = 0; 1610 clear_bit(cmd_idx, mrioc->devrem_bitmap); 1611 } 1612 1613 /** 1614 * mpi3mr_pcietopochg_evt_th - PCIETopologyChange evt tophalf 1615 * @mrioc: Adapter instance reference 1616 * @event_reply: event data 1617 * 1618 * Checks for the reason code and based on that either block I/O 1619 * to device, or unblock I/O to the device, or start the device 1620 * removal handshake with reason as remove with the firmware for 1621 * PCIe devices. 1622 * 1623 * Return: Nothing 1624 */ 1625 static void mpi3mr_pcietopochg_evt_th(struct mpi3mr_ioc *mrioc, 1626 struct mpi3_event_notification_reply *event_reply) 1627 { 1628 struct mpi3_event_data_pcie_topology_change_list *topo_evt = 1629 (struct mpi3_event_data_pcie_topology_change_list *)event_reply->event_data; 1630 int i; 1631 u16 handle; 1632 u8 reason_code; 1633 struct mpi3mr_tgt_dev *tgtdev = NULL; 1634 struct mpi3mr_stgt_priv_data *scsi_tgt_priv_data = NULL; 1635 1636 for (i = 0; i < topo_evt->num_entries; i++) { 1637 handle = le16_to_cpu(topo_evt->port_entry[i].attached_dev_handle); 1638 if (!handle) 1639 continue; 1640 reason_code = topo_evt->port_entry[i].port_status; 1641 scsi_tgt_priv_data = NULL; 1642 tgtdev = mpi3mr_get_tgtdev_by_handle(mrioc, handle); 1643 if (tgtdev && tgtdev->starget && tgtdev->starget->hostdata) 1644 scsi_tgt_priv_data = (struct mpi3mr_stgt_priv_data *) 1645 tgtdev->starget->hostdata; 1646 switch (reason_code) { 1647 case MPI3_EVENT_PCIE_TOPO_PS_NOT_RESPONDING: 1648 if (scsi_tgt_priv_data) { 1649 scsi_tgt_priv_data->dev_removed = 1; 1650 scsi_tgt_priv_data->dev_removedelay = 0; 1651 atomic_set(&scsi_tgt_priv_data->block_io, 0); 1652 } 1653 mpi3mr_dev_rmhs_send_tm(mrioc, handle, NULL, 1654 MPI3_CTRL_OP_REMOVE_DEVICE); 1655 break; 1656 case MPI3_EVENT_PCIE_TOPO_PS_DELAY_NOT_RESPONDING: 1657 if (scsi_tgt_priv_data) { 1658 scsi_tgt_priv_data->dev_removedelay = 1; 1659 atomic_inc(&scsi_tgt_priv_data->block_io); 1660 } 1661 break; 1662 case MPI3_EVENT_PCIE_TOPO_PS_RESPONDING: 1663 if (scsi_tgt_priv_data && 1664 scsi_tgt_priv_data->dev_removedelay) { 1665 scsi_tgt_priv_data->dev_removedelay = 0; 1666 atomic_dec_if_positive 1667 (&scsi_tgt_priv_data->block_io); 1668 } 1669 break; 1670 case MPI3_EVENT_PCIE_TOPO_PS_PORT_CHANGED: 1671 default: 1672 break; 1673 } 1674 if (tgtdev) 1675 mpi3mr_tgtdev_put(tgtdev); 1676 } 1677 } 1678 1679 /** 1680 * mpi3mr_sastopochg_evt_th - SASTopologyChange evt tophalf 1681 * @mrioc: Adapter instance reference 1682 * @event_reply: event data 1683 * 1684 * Checks for the reason code and based on that either block I/O 1685 * to device, or unblock I/O to the device, or start the device 1686 * removal handshake with reason as remove with the firmware for 1687 * SAS/SATA devices. 1688 * 1689 * Return: Nothing 1690 */ 1691 static void mpi3mr_sastopochg_evt_th(struct mpi3mr_ioc *mrioc, 1692 struct mpi3_event_notification_reply *event_reply) 1693 { 1694 struct mpi3_event_data_sas_topology_change_list *topo_evt = 1695 (struct mpi3_event_data_sas_topology_change_list *)event_reply->event_data; 1696 int i; 1697 u16 handle; 1698 u8 reason_code; 1699 struct mpi3mr_tgt_dev *tgtdev = NULL; 1700 struct mpi3mr_stgt_priv_data *scsi_tgt_priv_data = NULL; 1701 1702 for (i = 0; i < topo_evt->num_entries; i++) { 1703 handle = le16_to_cpu(topo_evt->phy_entry[i].attached_dev_handle); 1704 if (!handle) 1705 continue; 1706 reason_code = topo_evt->phy_entry[i].status & 1707 MPI3_EVENT_SAS_TOPO_PHY_RC_MASK; 1708 scsi_tgt_priv_data = NULL; 1709 tgtdev = mpi3mr_get_tgtdev_by_handle(mrioc, handle); 1710 if (tgtdev && tgtdev->starget && tgtdev->starget->hostdata) 1711 scsi_tgt_priv_data = (struct mpi3mr_stgt_priv_data *) 1712 tgtdev->starget->hostdata; 1713 switch (reason_code) { 1714 case MPI3_EVENT_SAS_TOPO_PHY_RC_TARG_NOT_RESPONDING: 1715 if (scsi_tgt_priv_data) { 1716 scsi_tgt_priv_data->dev_removed = 1; 1717 scsi_tgt_priv_data->dev_removedelay = 0; 1718 atomic_set(&scsi_tgt_priv_data->block_io, 0); 1719 } 1720 mpi3mr_dev_rmhs_send_tm(mrioc, handle, NULL, 1721 MPI3_CTRL_OP_REMOVE_DEVICE); 1722 break; 1723 case MPI3_EVENT_SAS_TOPO_PHY_RC_DELAY_NOT_RESPONDING: 1724 if (scsi_tgt_priv_data) { 1725 scsi_tgt_priv_data->dev_removedelay = 1; 1726 atomic_inc(&scsi_tgt_priv_data->block_io); 1727 } 1728 break; 1729 case MPI3_EVENT_SAS_TOPO_PHY_RC_RESPONDING: 1730 if (scsi_tgt_priv_data && 1731 scsi_tgt_priv_data->dev_removedelay) { 1732 scsi_tgt_priv_data->dev_removedelay = 0; 1733 atomic_dec_if_positive 1734 (&scsi_tgt_priv_data->block_io); 1735 } 1736 break; 1737 case MPI3_EVENT_SAS_TOPO_PHY_RC_PHY_CHANGED: 1738 default: 1739 break; 1740 } 1741 if (tgtdev) 1742 mpi3mr_tgtdev_put(tgtdev); 1743 } 1744 } 1745 1746 /** 1747 * mpi3mr_devstatuschg_evt_th - DeviceStatusChange evt tophalf 1748 * @mrioc: Adapter instance reference 1749 * @event_reply: event data 1750 * 1751 * Checks for the reason code and based on that either block I/O 1752 * to device, or unblock I/O to the device, or start the device 1753 * removal handshake with reason as remove/hide acknowledgment 1754 * with the firmware. 1755 * 1756 * Return: Nothing 1757 */ 1758 static void mpi3mr_devstatuschg_evt_th(struct mpi3mr_ioc *mrioc, 1759 struct mpi3_event_notification_reply *event_reply) 1760 { 1761 u16 dev_handle = 0; 1762 u8 ublock = 0, block = 0, hide = 0, delete = 0, remove = 0; 1763 struct mpi3mr_tgt_dev *tgtdev = NULL; 1764 struct mpi3mr_stgt_priv_data *scsi_tgt_priv_data = NULL; 1765 struct mpi3_event_data_device_status_change *evtdata = 1766 (struct mpi3_event_data_device_status_change *)event_reply->event_data; 1767 1768 if (mrioc->stop_drv_processing) 1769 goto out; 1770 1771 dev_handle = le16_to_cpu(evtdata->dev_handle); 1772 1773 switch (evtdata->reason_code) { 1774 case MPI3_EVENT_DEV_STAT_RC_INT_DEVICE_RESET_STRT: 1775 case MPI3_EVENT_DEV_STAT_RC_INT_IT_NEXUS_RESET_STRT: 1776 block = 1; 1777 break; 1778 case MPI3_EVENT_DEV_STAT_RC_HIDDEN: 1779 delete = 1; 1780 hide = 1; 1781 break; 1782 case MPI3_EVENT_DEV_STAT_RC_VD_NOT_RESPONDING: 1783 delete = 1; 1784 remove = 1; 1785 break; 1786 case MPI3_EVENT_DEV_STAT_RC_INT_DEVICE_RESET_CMP: 1787 case MPI3_EVENT_DEV_STAT_RC_INT_IT_NEXUS_RESET_CMP: 1788 ublock = 1; 1789 break; 1790 default: 1791 break; 1792 } 1793 1794 tgtdev = mpi3mr_get_tgtdev_by_handle(mrioc, dev_handle); 1795 if (!tgtdev) 1796 goto out; 1797 if (hide) 1798 tgtdev->is_hidden = hide; 1799 if (tgtdev->starget && tgtdev->starget->hostdata) { 1800 scsi_tgt_priv_data = (struct mpi3mr_stgt_priv_data *) 1801 tgtdev->starget->hostdata; 1802 if (block) 1803 atomic_inc(&scsi_tgt_priv_data->block_io); 1804 if (delete) 1805 scsi_tgt_priv_data->dev_removed = 1; 1806 if (ublock) 1807 atomic_dec_if_positive(&scsi_tgt_priv_data->block_io); 1808 } 1809 if (remove) 1810 mpi3mr_dev_rmhs_send_tm(mrioc, dev_handle, NULL, 1811 MPI3_CTRL_OP_REMOVE_DEVICE); 1812 if (hide) 1813 mpi3mr_dev_rmhs_send_tm(mrioc, dev_handle, NULL, 1814 MPI3_CTRL_OP_HIDDEN_ACK); 1815 1816 out: 1817 if (tgtdev) 1818 mpi3mr_tgtdev_put(tgtdev); 1819 } 1820 1821 /** 1822 * mpi3mr_energypackchg_evt_th - Energy pack change evt tophalf 1823 * @mrioc: Adapter instance reference 1824 * @event_reply: event data 1825 * 1826 * Identifies the new shutdown timeout value and update. 1827 * 1828 * Return: Nothing 1829 */ 1830 static void mpi3mr_energypackchg_evt_th(struct mpi3mr_ioc *mrioc, 1831 struct mpi3_event_notification_reply *event_reply) 1832 { 1833 struct mpi3_event_data_energy_pack_change *evtdata = 1834 (struct mpi3_event_data_energy_pack_change *)event_reply->event_data; 1835 u16 shutdown_timeout = le16_to_cpu(evtdata->shutdown_timeout); 1836 1837 if (shutdown_timeout <= 0) { 1838 ioc_warn(mrioc, 1839 "%s :Invalid Shutdown Timeout received = %d\n", 1840 __func__, shutdown_timeout); 1841 return; 1842 } 1843 1844 ioc_info(mrioc, 1845 "%s :Previous Shutdown Timeout Value = %d New Shutdown Timeout Value = %d\n", 1846 __func__, mrioc->facts.shutdown_timeout, shutdown_timeout); 1847 mrioc->facts.shutdown_timeout = shutdown_timeout; 1848 } 1849 1850 /** 1851 * mpi3mr_os_handle_events - Firmware event handler 1852 * @mrioc: Adapter instance reference 1853 * @event_reply: event data 1854 * 1855 * Identify whteher the event has to handled and acknowledged 1856 * and either process the event in the tophalf and/or schedule a 1857 * bottom half through mpi3mr_fwevt_worker. 1858 * 1859 * Return: Nothing 1860 */ 1861 void mpi3mr_os_handle_events(struct mpi3mr_ioc *mrioc, 1862 struct mpi3_event_notification_reply *event_reply) 1863 { 1864 u16 evt_type, sz; 1865 struct mpi3mr_fwevt *fwevt = NULL; 1866 bool ack_req = 0, process_evt_bh = 0; 1867 1868 if (mrioc->stop_drv_processing) 1869 return; 1870 1871 if ((event_reply->msg_flags & MPI3_EVENT_NOTIFY_MSGFLAGS_ACK_MASK) 1872 == MPI3_EVENT_NOTIFY_MSGFLAGS_ACK_REQUIRED) 1873 ack_req = 1; 1874 1875 evt_type = event_reply->event; 1876 1877 switch (evt_type) { 1878 case MPI3_EVENT_DEVICE_ADDED: 1879 { 1880 struct mpi3_device_page0 *dev_pg0 = 1881 (struct mpi3_device_page0 *)event_reply->event_data; 1882 if (mpi3mr_create_tgtdev(mrioc, dev_pg0)) 1883 ioc_err(mrioc, 1884 "%s :Failed to add device in the device add event\n", 1885 __func__); 1886 else 1887 process_evt_bh = 1; 1888 break; 1889 } 1890 case MPI3_EVENT_DEVICE_STATUS_CHANGE: 1891 { 1892 process_evt_bh = 1; 1893 mpi3mr_devstatuschg_evt_th(mrioc, event_reply); 1894 break; 1895 } 1896 case MPI3_EVENT_SAS_TOPOLOGY_CHANGE_LIST: 1897 { 1898 process_evt_bh = 1; 1899 mpi3mr_sastopochg_evt_th(mrioc, event_reply); 1900 break; 1901 } 1902 case MPI3_EVENT_PCIE_TOPOLOGY_CHANGE_LIST: 1903 { 1904 process_evt_bh = 1; 1905 mpi3mr_pcietopochg_evt_th(mrioc, event_reply); 1906 break; 1907 } 1908 case MPI3_EVENT_DEVICE_INFO_CHANGED: 1909 { 1910 process_evt_bh = 1; 1911 break; 1912 } 1913 case MPI3_EVENT_ENERGY_PACK_CHANGE: 1914 { 1915 mpi3mr_energypackchg_evt_th(mrioc, event_reply); 1916 break; 1917 } 1918 case MPI3_EVENT_ENCL_DEVICE_STATUS_CHANGE: 1919 case MPI3_EVENT_SAS_DISCOVERY: 1920 case MPI3_EVENT_CABLE_MGMT: 1921 case MPI3_EVENT_SAS_DEVICE_DISCOVERY_ERROR: 1922 case MPI3_EVENT_SAS_BROADCAST_PRIMITIVE: 1923 case MPI3_EVENT_PCIE_ENUMERATION: 1924 break; 1925 default: 1926 ioc_info(mrioc, "%s :event 0x%02x is not handled\n", 1927 __func__, evt_type); 1928 break; 1929 } 1930 if (process_evt_bh || ack_req) { 1931 sz = event_reply->event_data_length * 4; 1932 fwevt = mpi3mr_alloc_fwevt(sz); 1933 if (!fwevt) { 1934 ioc_info(mrioc, "%s :failure at %s:%d/%s()!\n", 1935 __func__, __FILE__, __LINE__, __func__); 1936 return; 1937 } 1938 1939 memcpy(fwevt->event_data, event_reply->event_data, sz); 1940 fwevt->mrioc = mrioc; 1941 fwevt->event_id = evt_type; 1942 fwevt->send_ack = ack_req; 1943 fwevt->process_evt = process_evt_bh; 1944 fwevt->evt_ctx = le32_to_cpu(event_reply->event_context); 1945 mpi3mr_fwevt_add_to_list(mrioc, fwevt); 1946 } 1947 } 1948 1949 /** 1950 * mpi3mr_setup_eedp - Setup EEDP information in MPI3 SCSI IO 1951 * @mrioc: Adapter instance reference 1952 * @scmd: SCSI command reference 1953 * @scsiio_req: MPI3 SCSI IO request 1954 * 1955 * Identifies the protection information flags from the SCSI 1956 * command and set appropriate flags in the MPI3 SCSI IO 1957 * request. 1958 * 1959 * Return: Nothing 1960 */ 1961 static void mpi3mr_setup_eedp(struct mpi3mr_ioc *mrioc, 1962 struct scsi_cmnd *scmd, struct mpi3_scsi_io_request *scsiio_req) 1963 { 1964 u16 eedp_flags = 0; 1965 unsigned char prot_op = scsi_get_prot_op(scmd); 1966 1967 switch (prot_op) { 1968 case SCSI_PROT_NORMAL: 1969 return; 1970 case SCSI_PROT_READ_STRIP: 1971 eedp_flags = MPI3_EEDPFLAGS_EEDP_OP_CHECK_REMOVE; 1972 break; 1973 case SCSI_PROT_WRITE_INSERT: 1974 eedp_flags = MPI3_EEDPFLAGS_EEDP_OP_INSERT; 1975 break; 1976 case SCSI_PROT_READ_INSERT: 1977 eedp_flags = MPI3_EEDPFLAGS_EEDP_OP_INSERT; 1978 scsiio_req->msg_flags |= MPI3_SCSIIO_MSGFLAGS_METASGL_VALID; 1979 break; 1980 case SCSI_PROT_WRITE_STRIP: 1981 eedp_flags = MPI3_EEDPFLAGS_EEDP_OP_CHECK_REMOVE; 1982 scsiio_req->msg_flags |= MPI3_SCSIIO_MSGFLAGS_METASGL_VALID; 1983 break; 1984 case SCSI_PROT_READ_PASS: 1985 eedp_flags = MPI3_EEDPFLAGS_EEDP_OP_CHECK; 1986 scsiio_req->msg_flags |= MPI3_SCSIIO_MSGFLAGS_METASGL_VALID; 1987 break; 1988 case SCSI_PROT_WRITE_PASS: 1989 if (scmd->prot_flags & SCSI_PROT_IP_CHECKSUM) { 1990 eedp_flags = MPI3_EEDPFLAGS_EEDP_OP_CHECK_REGEN; 1991 scsiio_req->sgl[0].eedp.application_tag_translation_mask = 1992 0xffff; 1993 } else 1994 eedp_flags = MPI3_EEDPFLAGS_EEDP_OP_CHECK; 1995 1996 scsiio_req->msg_flags |= MPI3_SCSIIO_MSGFLAGS_METASGL_VALID; 1997 break; 1998 default: 1999 return; 2000 } 2001 2002 if (scmd->prot_flags & SCSI_PROT_GUARD_CHECK) 2003 eedp_flags |= MPI3_EEDPFLAGS_CHK_GUARD; 2004 2005 if (scmd->prot_flags & SCSI_PROT_IP_CHECKSUM) 2006 eedp_flags |= MPI3_EEDPFLAGS_HOST_GUARD_IP_CHKSUM; 2007 2008 if (scmd->prot_flags & SCSI_PROT_REF_CHECK) { 2009 eedp_flags |= MPI3_EEDPFLAGS_CHK_REF_TAG | 2010 MPI3_EEDPFLAGS_INCR_PRI_REF_TAG; 2011 scsiio_req->cdb.eedp32.primary_reference_tag = 2012 cpu_to_be32(scsi_prot_ref_tag(scmd)); 2013 } 2014 2015 if (scmd->prot_flags & SCSI_PROT_REF_INCREMENT) 2016 eedp_flags |= MPI3_EEDPFLAGS_INCR_PRI_REF_TAG; 2017 2018 eedp_flags |= MPI3_EEDPFLAGS_ESC_MODE_APPTAG_DISABLE; 2019 2020 switch (scsi_prot_interval(scmd)) { 2021 case 512: 2022 scsiio_req->sgl[0].eedp.user_data_size = MPI3_EEDP_UDS_512; 2023 break; 2024 case 520: 2025 scsiio_req->sgl[0].eedp.user_data_size = MPI3_EEDP_UDS_520; 2026 break; 2027 case 4080: 2028 scsiio_req->sgl[0].eedp.user_data_size = MPI3_EEDP_UDS_4080; 2029 break; 2030 case 4088: 2031 scsiio_req->sgl[0].eedp.user_data_size = MPI3_EEDP_UDS_4088; 2032 break; 2033 case 4096: 2034 scsiio_req->sgl[0].eedp.user_data_size = MPI3_EEDP_UDS_4096; 2035 break; 2036 case 4104: 2037 scsiio_req->sgl[0].eedp.user_data_size = MPI3_EEDP_UDS_4104; 2038 break; 2039 case 4160: 2040 scsiio_req->sgl[0].eedp.user_data_size = MPI3_EEDP_UDS_4160; 2041 break; 2042 default: 2043 break; 2044 } 2045 2046 scsiio_req->sgl[0].eedp.eedp_flags = cpu_to_le16(eedp_flags); 2047 scsiio_req->sgl[0].eedp.flags = MPI3_SGE_FLAGS_ELEMENT_TYPE_EXTENDED; 2048 } 2049 2050 /** 2051 * mpi3mr_build_sense_buffer - Map sense information 2052 * @desc: Sense type 2053 * @buf: Sense buffer to populate 2054 * @key: Sense key 2055 * @asc: Additional sense code 2056 * @ascq: Additional sense code qualifier 2057 * 2058 * Maps the given sense information into either descriptor or 2059 * fixed format sense data. 2060 * 2061 * Return: Nothing 2062 */ 2063 static inline void mpi3mr_build_sense_buffer(int desc, u8 *buf, u8 key, 2064 u8 asc, u8 ascq) 2065 { 2066 if (desc) { 2067 buf[0] = 0x72; /* descriptor, current */ 2068 buf[1] = key; 2069 buf[2] = asc; 2070 buf[3] = ascq; 2071 buf[7] = 0; 2072 } else { 2073 buf[0] = 0x70; /* fixed, current */ 2074 buf[2] = key; 2075 buf[7] = 0xa; 2076 buf[12] = asc; 2077 buf[13] = ascq; 2078 } 2079 } 2080 2081 /** 2082 * mpi3mr_map_eedp_error - Map EEDP errors from IOC status 2083 * @scmd: SCSI command reference 2084 * @ioc_status: status of MPI3 request 2085 * 2086 * Maps the EEDP error status of the SCSI IO request to sense 2087 * data. 2088 * 2089 * Return: Nothing 2090 */ 2091 static void mpi3mr_map_eedp_error(struct scsi_cmnd *scmd, 2092 u16 ioc_status) 2093 { 2094 u8 ascq = 0; 2095 2096 switch (ioc_status) { 2097 case MPI3_IOCSTATUS_EEDP_GUARD_ERROR: 2098 ascq = 0x01; 2099 break; 2100 case MPI3_IOCSTATUS_EEDP_APP_TAG_ERROR: 2101 ascq = 0x02; 2102 break; 2103 case MPI3_IOCSTATUS_EEDP_REF_TAG_ERROR: 2104 ascq = 0x03; 2105 break; 2106 default: 2107 ascq = 0x00; 2108 break; 2109 } 2110 2111 mpi3mr_build_sense_buffer(0, scmd->sense_buffer, ILLEGAL_REQUEST, 2112 0x10, ascq); 2113 scmd->result = (DID_ABORT << 16) | SAM_STAT_CHECK_CONDITION; 2114 } 2115 2116 /** 2117 * mpi3mr_process_op_reply_desc - reply descriptor handler 2118 * @mrioc: Adapter instance reference 2119 * @reply_desc: Operational reply descriptor 2120 * @reply_dma: place holder for reply DMA address 2121 * @qidx: Operational queue index 2122 * 2123 * Process the operational reply descriptor and identifies the 2124 * descriptor type. Based on the descriptor map the MPI3 request 2125 * status to a SCSI command status and calls scsi_done call 2126 * back. 2127 * 2128 * Return: Nothing 2129 */ 2130 void mpi3mr_process_op_reply_desc(struct mpi3mr_ioc *mrioc, 2131 struct mpi3_default_reply_descriptor *reply_desc, u64 *reply_dma, u16 qidx) 2132 { 2133 u16 reply_desc_type, host_tag = 0; 2134 u16 ioc_status = MPI3_IOCSTATUS_SUCCESS; 2135 u32 ioc_loginfo = 0; 2136 struct mpi3_status_reply_descriptor *status_desc = NULL; 2137 struct mpi3_address_reply_descriptor *addr_desc = NULL; 2138 struct mpi3_success_reply_descriptor *success_desc = NULL; 2139 struct mpi3_scsi_io_reply *scsi_reply = NULL; 2140 struct scsi_cmnd *scmd = NULL; 2141 struct scmd_priv *priv = NULL; 2142 u8 *sense_buf = NULL; 2143 u8 scsi_state = 0, scsi_status = 0, sense_state = 0; 2144 u32 xfer_count = 0, sense_count = 0, resp_data = 0; 2145 u16 dev_handle = 0xFFFF; 2146 struct scsi_sense_hdr sshdr; 2147 2148 *reply_dma = 0; 2149 reply_desc_type = le16_to_cpu(reply_desc->reply_flags) & 2150 MPI3_REPLY_DESCRIPT_FLAGS_TYPE_MASK; 2151 switch (reply_desc_type) { 2152 case MPI3_REPLY_DESCRIPT_FLAGS_TYPE_STATUS: 2153 status_desc = (struct mpi3_status_reply_descriptor *)reply_desc; 2154 host_tag = le16_to_cpu(status_desc->host_tag); 2155 ioc_status = le16_to_cpu(status_desc->ioc_status); 2156 if (ioc_status & 2157 MPI3_REPLY_DESCRIPT_STATUS_IOCSTATUS_LOGINFOAVAIL) 2158 ioc_loginfo = le32_to_cpu(status_desc->ioc_log_info); 2159 ioc_status &= MPI3_REPLY_DESCRIPT_STATUS_IOCSTATUS_STATUS_MASK; 2160 break; 2161 case MPI3_REPLY_DESCRIPT_FLAGS_TYPE_ADDRESS_REPLY: 2162 addr_desc = (struct mpi3_address_reply_descriptor *)reply_desc; 2163 *reply_dma = le64_to_cpu(addr_desc->reply_frame_address); 2164 scsi_reply = mpi3mr_get_reply_virt_addr(mrioc, 2165 *reply_dma); 2166 if (!scsi_reply) { 2167 panic("%s: scsi_reply is NULL, this shouldn't happen\n", 2168 mrioc->name); 2169 goto out; 2170 } 2171 host_tag = le16_to_cpu(scsi_reply->host_tag); 2172 ioc_status = le16_to_cpu(scsi_reply->ioc_status); 2173 scsi_status = scsi_reply->scsi_status; 2174 scsi_state = scsi_reply->scsi_state; 2175 dev_handle = le16_to_cpu(scsi_reply->dev_handle); 2176 sense_state = (scsi_state & MPI3_SCSI_STATE_SENSE_MASK); 2177 xfer_count = le32_to_cpu(scsi_reply->transfer_count); 2178 sense_count = le32_to_cpu(scsi_reply->sense_count); 2179 resp_data = le32_to_cpu(scsi_reply->response_data); 2180 sense_buf = mpi3mr_get_sensebuf_virt_addr(mrioc, 2181 le64_to_cpu(scsi_reply->sense_data_buffer_address)); 2182 if (ioc_status & 2183 MPI3_REPLY_DESCRIPT_STATUS_IOCSTATUS_LOGINFOAVAIL) 2184 ioc_loginfo = le32_to_cpu(scsi_reply->ioc_log_info); 2185 ioc_status &= MPI3_REPLY_DESCRIPT_STATUS_IOCSTATUS_STATUS_MASK; 2186 if (sense_state == MPI3_SCSI_STATE_SENSE_BUFF_Q_EMPTY) 2187 panic("%s: Ran out of sense buffers\n", mrioc->name); 2188 break; 2189 case MPI3_REPLY_DESCRIPT_FLAGS_TYPE_SUCCESS: 2190 success_desc = (struct mpi3_success_reply_descriptor *)reply_desc; 2191 host_tag = le16_to_cpu(success_desc->host_tag); 2192 break; 2193 default: 2194 break; 2195 } 2196 scmd = mpi3mr_scmd_from_host_tag(mrioc, host_tag, qidx); 2197 if (!scmd) { 2198 panic("%s: Cannot Identify scmd for host_tag 0x%x\n", 2199 mrioc->name, host_tag); 2200 goto out; 2201 } 2202 priv = scsi_cmd_priv(scmd); 2203 if (success_desc) { 2204 scmd->result = DID_OK << 16; 2205 goto out_success; 2206 } 2207 if (ioc_status == MPI3_IOCSTATUS_SCSI_DATA_UNDERRUN && 2208 xfer_count == 0 && (scsi_status == MPI3_SCSI_STATUS_BUSY || 2209 scsi_status == MPI3_SCSI_STATUS_RESERVATION_CONFLICT || 2210 scsi_status == MPI3_SCSI_STATUS_TASK_SET_FULL)) 2211 ioc_status = MPI3_IOCSTATUS_SUCCESS; 2212 2213 if ((sense_state == MPI3_SCSI_STATE_SENSE_VALID) && sense_count && 2214 sense_buf) { 2215 u32 sz = min_t(u32, SCSI_SENSE_BUFFERSIZE, sense_count); 2216 2217 memcpy(scmd->sense_buffer, sense_buf, sz); 2218 } 2219 2220 switch (ioc_status) { 2221 case MPI3_IOCSTATUS_BUSY: 2222 case MPI3_IOCSTATUS_INSUFFICIENT_RESOURCES: 2223 scmd->result = SAM_STAT_BUSY; 2224 break; 2225 case MPI3_IOCSTATUS_SCSI_DEVICE_NOT_THERE: 2226 scmd->result = DID_NO_CONNECT << 16; 2227 break; 2228 case MPI3_IOCSTATUS_SCSI_IOC_TERMINATED: 2229 scmd->result = DID_SOFT_ERROR << 16; 2230 break; 2231 case MPI3_IOCSTATUS_SCSI_TASK_TERMINATED: 2232 case MPI3_IOCSTATUS_SCSI_EXT_TERMINATED: 2233 scmd->result = DID_RESET << 16; 2234 break; 2235 case MPI3_IOCSTATUS_SCSI_RESIDUAL_MISMATCH: 2236 if ((xfer_count == 0) || (scmd->underflow > xfer_count)) 2237 scmd->result = DID_SOFT_ERROR << 16; 2238 else 2239 scmd->result = (DID_OK << 16) | scsi_status; 2240 break; 2241 case MPI3_IOCSTATUS_SCSI_DATA_UNDERRUN: 2242 scmd->result = (DID_OK << 16) | scsi_status; 2243 if (sense_state == MPI3_SCSI_STATE_SENSE_VALID) 2244 break; 2245 if (xfer_count < scmd->underflow) { 2246 if (scsi_status == SAM_STAT_BUSY) 2247 scmd->result = SAM_STAT_BUSY; 2248 else 2249 scmd->result = DID_SOFT_ERROR << 16; 2250 } else if ((scsi_state & (MPI3_SCSI_STATE_NO_SCSI_STATUS)) || 2251 (sense_state != MPI3_SCSI_STATE_SENSE_NOT_AVAILABLE)) 2252 scmd->result = DID_SOFT_ERROR << 16; 2253 else if (scsi_state & MPI3_SCSI_STATE_TERMINATED) 2254 scmd->result = DID_RESET << 16; 2255 break; 2256 case MPI3_IOCSTATUS_SCSI_DATA_OVERRUN: 2257 scsi_set_resid(scmd, 0); 2258 fallthrough; 2259 case MPI3_IOCSTATUS_SCSI_RECOVERED_ERROR: 2260 case MPI3_IOCSTATUS_SUCCESS: 2261 scmd->result = (DID_OK << 16) | scsi_status; 2262 if ((scsi_state & (MPI3_SCSI_STATE_NO_SCSI_STATUS)) || 2263 (sense_state == MPI3_SCSI_STATE_SENSE_FAILED) || 2264 (sense_state == MPI3_SCSI_STATE_SENSE_BUFF_Q_EMPTY)) 2265 scmd->result = DID_SOFT_ERROR << 16; 2266 else if (scsi_state & MPI3_SCSI_STATE_TERMINATED) 2267 scmd->result = DID_RESET << 16; 2268 break; 2269 case MPI3_IOCSTATUS_EEDP_GUARD_ERROR: 2270 case MPI3_IOCSTATUS_EEDP_REF_TAG_ERROR: 2271 case MPI3_IOCSTATUS_EEDP_APP_TAG_ERROR: 2272 mpi3mr_map_eedp_error(scmd, ioc_status); 2273 break; 2274 case MPI3_IOCSTATUS_SCSI_PROTOCOL_ERROR: 2275 case MPI3_IOCSTATUS_INVALID_FUNCTION: 2276 case MPI3_IOCSTATUS_INVALID_SGL: 2277 case MPI3_IOCSTATUS_INTERNAL_ERROR: 2278 case MPI3_IOCSTATUS_INVALID_FIELD: 2279 case MPI3_IOCSTATUS_INVALID_STATE: 2280 case MPI3_IOCSTATUS_SCSI_IO_DATA_ERROR: 2281 case MPI3_IOCSTATUS_SCSI_TASK_MGMT_FAILED: 2282 case MPI3_IOCSTATUS_INSUFFICIENT_POWER: 2283 default: 2284 scmd->result = DID_SOFT_ERROR << 16; 2285 break; 2286 } 2287 2288 if (scmd->result != (DID_OK << 16) && (scmd->cmnd[0] != ATA_12) && 2289 (scmd->cmnd[0] != ATA_16)) { 2290 ioc_info(mrioc, "%s :scmd->result 0x%x\n", __func__, 2291 scmd->result); 2292 scsi_print_command(scmd); 2293 ioc_info(mrioc, 2294 "%s :Command issued to handle 0x%02x returned with error 0x%04x loginfo 0x%08x, qid %d\n", 2295 __func__, dev_handle, ioc_status, ioc_loginfo, 2296 priv->req_q_idx + 1); 2297 ioc_info(mrioc, 2298 " host_tag %d scsi_state 0x%02x scsi_status 0x%02x, xfer_cnt %d resp_data 0x%x\n", 2299 host_tag, scsi_state, scsi_status, xfer_count, resp_data); 2300 if (sense_buf) { 2301 scsi_normalize_sense(sense_buf, sense_count, &sshdr); 2302 ioc_info(mrioc, 2303 "%s :sense_count 0x%x, sense_key 0x%x ASC 0x%x, ASCQ 0x%x\n", 2304 __func__, sense_count, sshdr.sense_key, 2305 sshdr.asc, sshdr.ascq); 2306 } 2307 } 2308 out_success: 2309 if (priv->meta_sg_valid) { 2310 dma_unmap_sg(&mrioc->pdev->dev, scsi_prot_sglist(scmd), 2311 scsi_prot_sg_count(scmd), scmd->sc_data_direction); 2312 } 2313 mpi3mr_clear_scmd_priv(mrioc, scmd); 2314 scsi_dma_unmap(scmd); 2315 scmd->scsi_done(scmd); 2316 out: 2317 if (sense_buf) 2318 mpi3mr_repost_sense_buf(mrioc, 2319 le64_to_cpu(scsi_reply->sense_data_buffer_address)); 2320 } 2321 2322 /** 2323 * mpi3mr_get_chain_idx - get free chain buffer index 2324 * @mrioc: Adapter instance reference 2325 * 2326 * Try to get a free chain buffer index from the free pool. 2327 * 2328 * Return: -1 on failure or the free chain buffer index 2329 */ 2330 static int mpi3mr_get_chain_idx(struct mpi3mr_ioc *mrioc) 2331 { 2332 u8 retry_count = 5; 2333 int cmd_idx = -1; 2334 2335 do { 2336 spin_lock(&mrioc->chain_buf_lock); 2337 cmd_idx = find_first_zero_bit(mrioc->chain_bitmap, 2338 mrioc->chain_buf_count); 2339 if (cmd_idx < mrioc->chain_buf_count) { 2340 set_bit(cmd_idx, mrioc->chain_bitmap); 2341 spin_unlock(&mrioc->chain_buf_lock); 2342 break; 2343 } 2344 spin_unlock(&mrioc->chain_buf_lock); 2345 cmd_idx = -1; 2346 } while (retry_count--); 2347 return cmd_idx; 2348 } 2349 2350 /** 2351 * mpi3mr_prepare_sg_scmd - build scatter gather list 2352 * @mrioc: Adapter instance reference 2353 * @scmd: SCSI command reference 2354 * @scsiio_req: MPI3 SCSI IO request 2355 * 2356 * This function maps SCSI command's data and protection SGEs to 2357 * MPI request SGEs. If required additional 4K chain buffer is 2358 * used to send the SGEs. 2359 * 2360 * Return: 0 on success, -ENOMEM on dma_map_sg failure 2361 */ 2362 static int mpi3mr_prepare_sg_scmd(struct mpi3mr_ioc *mrioc, 2363 struct scsi_cmnd *scmd, struct mpi3_scsi_io_request *scsiio_req) 2364 { 2365 dma_addr_t chain_dma; 2366 struct scatterlist *sg_scmd; 2367 void *sg_local, *chain; 2368 u32 chain_length; 2369 int sges_left, chain_idx; 2370 u32 sges_in_segment; 2371 u8 simple_sgl_flags; 2372 u8 simple_sgl_flags_last; 2373 u8 last_chain_sgl_flags; 2374 struct chain_element *chain_req; 2375 struct scmd_priv *priv = NULL; 2376 u32 meta_sg = le32_to_cpu(scsiio_req->flags) & 2377 MPI3_SCSIIO_FLAGS_DMAOPERATION_HOST_PI; 2378 2379 priv = scsi_cmd_priv(scmd); 2380 2381 simple_sgl_flags = MPI3_SGE_FLAGS_ELEMENT_TYPE_SIMPLE | 2382 MPI3_SGE_FLAGS_DLAS_SYSTEM; 2383 simple_sgl_flags_last = simple_sgl_flags | 2384 MPI3_SGE_FLAGS_END_OF_LIST; 2385 last_chain_sgl_flags = MPI3_SGE_FLAGS_ELEMENT_TYPE_LAST_CHAIN | 2386 MPI3_SGE_FLAGS_DLAS_SYSTEM; 2387 2388 if (meta_sg) 2389 sg_local = &scsiio_req->sgl[MPI3_SCSIIO_METASGL_INDEX]; 2390 else 2391 sg_local = &scsiio_req->sgl; 2392 2393 if (!scsiio_req->data_length && !meta_sg) { 2394 mpi3mr_build_zero_len_sge(sg_local); 2395 return 0; 2396 } 2397 2398 if (meta_sg) { 2399 sg_scmd = scsi_prot_sglist(scmd); 2400 sges_left = dma_map_sg(&mrioc->pdev->dev, 2401 scsi_prot_sglist(scmd), 2402 scsi_prot_sg_count(scmd), 2403 scmd->sc_data_direction); 2404 priv->meta_sg_valid = 1; /* To unmap meta sg DMA */ 2405 } else { 2406 sg_scmd = scsi_sglist(scmd); 2407 sges_left = scsi_dma_map(scmd); 2408 } 2409 2410 if (sges_left < 0) { 2411 sdev_printk(KERN_ERR, scmd->device, 2412 "scsi_dma_map failed: request for %d bytes!\n", 2413 scsi_bufflen(scmd)); 2414 return -ENOMEM; 2415 } 2416 if (sges_left > MPI3MR_SG_DEPTH) { 2417 sdev_printk(KERN_ERR, scmd->device, 2418 "scsi_dma_map returned unsupported sge count %d!\n", 2419 sges_left); 2420 return -ENOMEM; 2421 } 2422 2423 sges_in_segment = (mrioc->facts.op_req_sz - 2424 offsetof(struct mpi3_scsi_io_request, sgl)) / sizeof(struct mpi3_sge_common); 2425 2426 if (scsiio_req->sgl[0].eedp.flags == 2427 MPI3_SGE_FLAGS_ELEMENT_TYPE_EXTENDED && !meta_sg) { 2428 sg_local += sizeof(struct mpi3_sge_common); 2429 sges_in_segment--; 2430 /* Reserve 1st segment (scsiio_req->sgl[0]) for eedp */ 2431 } 2432 2433 if (scsiio_req->msg_flags == 2434 MPI3_SCSIIO_MSGFLAGS_METASGL_VALID && !meta_sg) { 2435 sges_in_segment--; 2436 /* Reserve last segment (scsiio_req->sgl[3]) for meta sg */ 2437 } 2438 2439 if (meta_sg) 2440 sges_in_segment = 1; 2441 2442 if (sges_left <= sges_in_segment) 2443 goto fill_in_last_segment; 2444 2445 /* fill in main message segment when there is a chain following */ 2446 while (sges_in_segment > 1) { 2447 mpi3mr_add_sg_single(sg_local, simple_sgl_flags, 2448 sg_dma_len(sg_scmd), sg_dma_address(sg_scmd)); 2449 sg_scmd = sg_next(sg_scmd); 2450 sg_local += sizeof(struct mpi3_sge_common); 2451 sges_left--; 2452 sges_in_segment--; 2453 } 2454 2455 chain_idx = mpi3mr_get_chain_idx(mrioc); 2456 if (chain_idx < 0) 2457 return -1; 2458 chain_req = &mrioc->chain_sgl_list[chain_idx]; 2459 if (meta_sg) 2460 priv->meta_chain_idx = chain_idx; 2461 else 2462 priv->chain_idx = chain_idx; 2463 2464 chain = chain_req->addr; 2465 chain_dma = chain_req->dma_addr; 2466 sges_in_segment = sges_left; 2467 chain_length = sges_in_segment * sizeof(struct mpi3_sge_common); 2468 2469 mpi3mr_add_sg_single(sg_local, last_chain_sgl_flags, 2470 chain_length, chain_dma); 2471 2472 sg_local = chain; 2473 2474 fill_in_last_segment: 2475 while (sges_left > 0) { 2476 if (sges_left == 1) 2477 mpi3mr_add_sg_single(sg_local, 2478 simple_sgl_flags_last, sg_dma_len(sg_scmd), 2479 sg_dma_address(sg_scmd)); 2480 else 2481 mpi3mr_add_sg_single(sg_local, simple_sgl_flags, 2482 sg_dma_len(sg_scmd), sg_dma_address(sg_scmd)); 2483 sg_scmd = sg_next(sg_scmd); 2484 sg_local += sizeof(struct mpi3_sge_common); 2485 sges_left--; 2486 } 2487 2488 return 0; 2489 } 2490 2491 /** 2492 * mpi3mr_build_sg_scmd - build scatter gather list for SCSI IO 2493 * @mrioc: Adapter instance reference 2494 * @scmd: SCSI command reference 2495 * @scsiio_req: MPI3 SCSI IO request 2496 * 2497 * This function calls mpi3mr_prepare_sg_scmd for constructing 2498 * both data SGEs and protection information SGEs in the MPI 2499 * format from the SCSI Command as appropriate . 2500 * 2501 * Return: return value of mpi3mr_prepare_sg_scmd. 2502 */ 2503 static int mpi3mr_build_sg_scmd(struct mpi3mr_ioc *mrioc, 2504 struct scsi_cmnd *scmd, struct mpi3_scsi_io_request *scsiio_req) 2505 { 2506 int ret; 2507 2508 ret = mpi3mr_prepare_sg_scmd(mrioc, scmd, scsiio_req); 2509 if (ret) 2510 return ret; 2511 2512 if (scsiio_req->msg_flags == MPI3_SCSIIO_MSGFLAGS_METASGL_VALID) { 2513 /* There is a valid meta sg */ 2514 scsiio_req->flags |= 2515 cpu_to_le32(MPI3_SCSIIO_FLAGS_DMAOPERATION_HOST_PI); 2516 ret = mpi3mr_prepare_sg_scmd(mrioc, scmd, scsiio_req); 2517 } 2518 2519 return ret; 2520 } 2521 2522 /** 2523 * mpi3mr_print_response_code - print TM response as a string 2524 * @mrioc: Adapter instance reference 2525 * @resp_code: TM response code 2526 * 2527 * Print TM response code as a readable string. 2528 * 2529 * Return: Nothing. 2530 */ 2531 static void mpi3mr_print_response_code(struct mpi3mr_ioc *mrioc, u8 resp_code) 2532 { 2533 char *desc; 2534 2535 switch (resp_code) { 2536 case MPI3MR_RSP_TM_COMPLETE: 2537 desc = "task management request completed"; 2538 break; 2539 case MPI3MR_RSP_INVALID_FRAME: 2540 desc = "invalid frame"; 2541 break; 2542 case MPI3MR_RSP_TM_NOT_SUPPORTED: 2543 desc = "task management request not supported"; 2544 break; 2545 case MPI3MR_RSP_TM_FAILED: 2546 desc = "task management request failed"; 2547 break; 2548 case MPI3MR_RSP_TM_SUCCEEDED: 2549 desc = "task management request succeeded"; 2550 break; 2551 case MPI3MR_RSP_TM_INVALID_LUN: 2552 desc = "invalid lun"; 2553 break; 2554 case MPI3MR_RSP_TM_OVERLAPPED_TAG: 2555 desc = "overlapped tag attempted"; 2556 break; 2557 case MPI3MR_RSP_IO_QUEUED_ON_IOC: 2558 desc = "task queued, however not sent to target"; 2559 break; 2560 default: 2561 desc = "unknown"; 2562 break; 2563 } 2564 ioc_info(mrioc, "%s :response_code(0x%01x): %s\n", __func__, 2565 resp_code, desc); 2566 } 2567 2568 /** 2569 * mpi3mr_issue_tm - Issue Task Management request 2570 * @mrioc: Adapter instance reference 2571 * @tm_type: Task Management type 2572 * @handle: Device handle 2573 * @lun: lun ID 2574 * @htag: Host tag of the TM request 2575 * @drv_cmd: Internal command tracker 2576 * @resp_code: Response code place holder 2577 * @cmd_priv: SCSI command private data 2578 * 2579 * Issues a Task Management Request to the controller for a 2580 * specified target, lun and command and wait for its completion 2581 * and check TM response. Recover the TM if it timed out by 2582 * issuing controller reset. 2583 * 2584 * Return: 0 on success, non-zero on errors 2585 */ 2586 static int mpi3mr_issue_tm(struct mpi3mr_ioc *mrioc, u8 tm_type, 2587 u16 handle, uint lun, u16 htag, ulong timeout, 2588 struct mpi3mr_drv_cmd *drv_cmd, 2589 u8 *resp_code, struct scmd_priv *cmd_priv) 2590 { 2591 struct mpi3_scsi_task_mgmt_request tm_req; 2592 struct mpi3_scsi_task_mgmt_reply *tm_reply = NULL; 2593 int retval = 0; 2594 struct mpi3mr_tgt_dev *tgtdev = NULL; 2595 struct mpi3mr_stgt_priv_data *scsi_tgt_priv_data = NULL; 2596 struct op_req_qinfo *op_req_q = NULL; 2597 2598 ioc_info(mrioc, "%s :Issue TM: TM type (0x%x) for devhandle 0x%04x\n", 2599 __func__, tm_type, handle); 2600 if (mrioc->unrecoverable) { 2601 retval = -1; 2602 ioc_err(mrioc, "%s :Issue TM: Unrecoverable controller\n", 2603 __func__); 2604 goto out; 2605 } 2606 2607 memset(&tm_req, 0, sizeof(tm_req)); 2608 mutex_lock(&drv_cmd->mutex); 2609 if (drv_cmd->state & MPI3MR_CMD_PENDING) { 2610 retval = -1; 2611 ioc_err(mrioc, "%s :Issue TM: Command is in use\n", __func__); 2612 mutex_unlock(&drv_cmd->mutex); 2613 goto out; 2614 } 2615 if (mrioc->reset_in_progress) { 2616 retval = -1; 2617 ioc_err(mrioc, "%s :Issue TM: Reset in progress\n", __func__); 2618 mutex_unlock(&drv_cmd->mutex); 2619 goto out; 2620 } 2621 2622 drv_cmd->state = MPI3MR_CMD_PENDING; 2623 drv_cmd->is_waiting = 1; 2624 drv_cmd->callback = NULL; 2625 tm_req.dev_handle = cpu_to_le16(handle); 2626 tm_req.task_type = tm_type; 2627 tm_req.host_tag = cpu_to_le16(htag); 2628 2629 int_to_scsilun(lun, (struct scsi_lun *)tm_req.lun); 2630 tm_req.function = MPI3_FUNCTION_SCSI_TASK_MGMT; 2631 2632 tgtdev = mpi3mr_get_tgtdev_by_handle(mrioc, handle); 2633 if (tgtdev && tgtdev->starget && tgtdev->starget->hostdata) { 2634 scsi_tgt_priv_data = (struct mpi3mr_stgt_priv_data *) 2635 tgtdev->starget->hostdata; 2636 atomic_inc(&scsi_tgt_priv_data->block_io); 2637 } 2638 if (cmd_priv) { 2639 op_req_q = &mrioc->req_qinfo[cmd_priv->req_q_idx]; 2640 tm_req.task_host_tag = cpu_to_le16(cmd_priv->host_tag); 2641 tm_req.task_request_queue_id = cpu_to_le16(op_req_q->qid); 2642 } 2643 if (tgtdev && (tgtdev->dev_type == MPI3_DEVICE_DEVFORM_PCIE)) { 2644 if (cmd_priv && tgtdev->dev_spec.pcie_inf.abort_to) 2645 timeout = tgtdev->dev_spec.pcie_inf.abort_to; 2646 else if (!cmd_priv && tgtdev->dev_spec.pcie_inf.reset_to) 2647 timeout = tgtdev->dev_spec.pcie_inf.reset_to; 2648 } 2649 2650 init_completion(&drv_cmd->done); 2651 retval = mpi3mr_admin_request_post(mrioc, &tm_req, sizeof(tm_req), 1); 2652 if (retval) { 2653 ioc_err(mrioc, "%s :Issue TM: Admin Post failed\n", __func__); 2654 goto out_unlock; 2655 } 2656 wait_for_completion_timeout(&drv_cmd->done, (timeout * HZ)); 2657 2658 if (!(drv_cmd->state & MPI3MR_CMD_COMPLETE)) { 2659 ioc_err(mrioc, "%s :Issue TM: command timed out\n", __func__); 2660 drv_cmd->is_waiting = 0; 2661 retval = -1; 2662 mpi3mr_soft_reset_handler(mrioc, 2663 MPI3MR_RESET_FROM_TM_TIMEOUT, 1); 2664 goto out_unlock; 2665 } 2666 2667 if (drv_cmd->state & MPI3MR_CMD_REPLY_VALID) 2668 tm_reply = (struct mpi3_scsi_task_mgmt_reply *)drv_cmd->reply; 2669 2670 if (drv_cmd->ioc_status != MPI3_IOCSTATUS_SUCCESS) { 2671 ioc_err(mrioc, 2672 "%s :Issue TM: handle(0x%04x) Failed ioc_status(0x%04x) Loginfo(0x%08x)\n", 2673 __func__, handle, drv_cmd->ioc_status, 2674 drv_cmd->ioc_loginfo); 2675 retval = -1; 2676 goto out_unlock; 2677 } 2678 2679 if (!tm_reply) { 2680 ioc_err(mrioc, "%s :Issue TM: No TM Reply message\n", __func__); 2681 retval = -1; 2682 goto out_unlock; 2683 } 2684 2685 *resp_code = le32_to_cpu(tm_reply->response_data) & 2686 MPI3MR_RI_MASK_RESPCODE; 2687 switch (*resp_code) { 2688 case MPI3MR_RSP_TM_SUCCEEDED: 2689 case MPI3MR_RSP_TM_COMPLETE: 2690 break; 2691 case MPI3MR_RSP_IO_QUEUED_ON_IOC: 2692 if (tm_type != MPI3_SCSITASKMGMT_TASKTYPE_QUERY_TASK) 2693 retval = -1; 2694 break; 2695 default: 2696 retval = -1; 2697 break; 2698 } 2699 2700 ioc_info(mrioc, 2701 "%s :Issue TM: Completed TM type (0x%x) handle(0x%04x) ", 2702 __func__, tm_type, handle); 2703 ioc_info(mrioc, 2704 "with ioc_status(0x%04x), loginfo(0x%08x), term_count(0x%08x)\n", 2705 drv_cmd->ioc_status, drv_cmd->ioc_loginfo, 2706 le32_to_cpu(tm_reply->termination_count)); 2707 mpi3mr_print_response_code(mrioc, *resp_code); 2708 2709 out_unlock: 2710 drv_cmd->state = MPI3MR_CMD_NOTUSED; 2711 mutex_unlock(&drv_cmd->mutex); 2712 if (scsi_tgt_priv_data) 2713 atomic_dec_if_positive(&scsi_tgt_priv_data->block_io); 2714 if (tgtdev) 2715 mpi3mr_tgtdev_put(tgtdev); 2716 if (!retval) { 2717 /* 2718 * Flush all IRQ handlers by calling synchronize_irq(). 2719 * mpi3mr_ioc_disable_intr() takes care of it. 2720 */ 2721 mpi3mr_ioc_disable_intr(mrioc); 2722 mpi3mr_ioc_enable_intr(mrioc); 2723 } 2724 out: 2725 return retval; 2726 } 2727 2728 /** 2729 * mpi3mr_bios_param - BIOS param callback 2730 * @sdev: SCSI device reference 2731 * @bdev: Block device reference 2732 * @capacity: Capacity in logical sectors 2733 * @params: Parameter array 2734 * 2735 * Just the parameters with heads/secots/cylinders. 2736 * 2737 * Return: 0 always 2738 */ 2739 static int mpi3mr_bios_param(struct scsi_device *sdev, 2740 struct block_device *bdev, sector_t capacity, int params[]) 2741 { 2742 int heads; 2743 int sectors; 2744 sector_t cylinders; 2745 ulong dummy; 2746 2747 heads = 64; 2748 sectors = 32; 2749 2750 dummy = heads * sectors; 2751 cylinders = capacity; 2752 sector_div(cylinders, dummy); 2753 2754 if ((ulong)capacity >= 0x200000) { 2755 heads = 255; 2756 sectors = 63; 2757 dummy = heads * sectors; 2758 cylinders = capacity; 2759 sector_div(cylinders, dummy); 2760 } 2761 2762 params[0] = heads; 2763 params[1] = sectors; 2764 params[2] = cylinders; 2765 return 0; 2766 } 2767 2768 /** 2769 * mpi3mr_map_queues - Map queues callback handler 2770 * @shost: SCSI host reference 2771 * 2772 * Call the blk_mq_pci_map_queues with from which operational 2773 * queue the mapping has to be done 2774 * 2775 * Return: return of blk_mq_pci_map_queues 2776 */ 2777 static int mpi3mr_map_queues(struct Scsi_Host *shost) 2778 { 2779 struct mpi3mr_ioc *mrioc = shost_priv(shost); 2780 2781 return blk_mq_pci_map_queues(&shost->tag_set.map[HCTX_TYPE_DEFAULT], 2782 mrioc->pdev, mrioc->op_reply_q_offset); 2783 } 2784 2785 /** 2786 * mpi3mr_get_fw_pending_ios - Calculate pending I/O count 2787 * @mrioc: Adapter instance reference 2788 * 2789 * Calculate the pending I/Os for the controller and return. 2790 * 2791 * Return: Number of pending I/Os 2792 */ 2793 static inline int mpi3mr_get_fw_pending_ios(struct mpi3mr_ioc *mrioc) 2794 { 2795 u16 i; 2796 uint pend_ios = 0; 2797 2798 for (i = 0; i < mrioc->num_op_reply_q; i++) 2799 pend_ios += atomic_read(&mrioc->op_reply_qinfo[i].pend_ios); 2800 return pend_ios; 2801 } 2802 2803 /** 2804 * mpi3mr_print_pending_host_io - print pending I/Os 2805 * @mrioc: Adapter instance reference 2806 * 2807 * Print number of pending I/Os and each I/O details prior to 2808 * reset for debug purpose. 2809 * 2810 * Return: Nothing 2811 */ 2812 static void mpi3mr_print_pending_host_io(struct mpi3mr_ioc *mrioc) 2813 { 2814 struct Scsi_Host *shost = mrioc->shost; 2815 2816 ioc_info(mrioc, "%s :Pending commands prior to reset: %d\n", 2817 __func__, mpi3mr_get_fw_pending_ios(mrioc)); 2818 blk_mq_tagset_busy_iter(&shost->tag_set, 2819 mpi3mr_print_scmd, (void *)mrioc); 2820 } 2821 2822 /** 2823 * mpi3mr_wait_for_host_io - block for I/Os to complete 2824 * @mrioc: Adapter instance reference 2825 * @timeout: time out in seconds 2826 * Waits for pending I/Os for the given adapter to complete or 2827 * to hit the timeout. 2828 * 2829 * Return: Nothing 2830 */ 2831 void mpi3mr_wait_for_host_io(struct mpi3mr_ioc *mrioc, u32 timeout) 2832 { 2833 enum mpi3mr_iocstate iocstate; 2834 int i = 0; 2835 2836 iocstate = mpi3mr_get_iocstate(mrioc); 2837 if (iocstate != MRIOC_STATE_READY) 2838 return; 2839 2840 if (!mpi3mr_get_fw_pending_ios(mrioc)) 2841 return; 2842 ioc_info(mrioc, 2843 "%s :Waiting for %d seconds prior to reset for %d I/O\n", 2844 __func__, timeout, mpi3mr_get_fw_pending_ios(mrioc)); 2845 2846 for (i = 0; i < timeout; i++) { 2847 if (!mpi3mr_get_fw_pending_ios(mrioc)) 2848 break; 2849 iocstate = mpi3mr_get_iocstate(mrioc); 2850 if (iocstate != MRIOC_STATE_READY) 2851 break; 2852 msleep(1000); 2853 } 2854 2855 ioc_info(mrioc, "%s :Pending I/Os after wait is: %d\n", __func__, 2856 mpi3mr_get_fw_pending_ios(mrioc)); 2857 } 2858 2859 /** 2860 * mpi3mr_eh_host_reset - Host reset error handling callback 2861 * @scmd: SCSI command reference 2862 * 2863 * Issue controller reset if the scmd is for a Physical Device, 2864 * if the scmd is for RAID volume, then wait for 2865 * MPI3MR_RAID_ERRREC_RESET_TIMEOUT and checke whether any 2866 * pending I/Os prior to issuing reset to the controller. 2867 * 2868 * Return: SUCCESS of successful reset else FAILED 2869 */ 2870 static int mpi3mr_eh_host_reset(struct scsi_cmnd *scmd) 2871 { 2872 struct mpi3mr_ioc *mrioc = shost_priv(scmd->device->host); 2873 struct mpi3mr_stgt_priv_data *stgt_priv_data; 2874 struct mpi3mr_sdev_priv_data *sdev_priv_data; 2875 u8 dev_type = MPI3_DEVICE_DEVFORM_VD; 2876 int retval = FAILED, ret; 2877 2878 sdev_priv_data = scmd->device->hostdata; 2879 if (sdev_priv_data && sdev_priv_data->tgt_priv_data) { 2880 stgt_priv_data = sdev_priv_data->tgt_priv_data; 2881 dev_type = stgt_priv_data->dev_type; 2882 } 2883 2884 if (dev_type == MPI3_DEVICE_DEVFORM_VD) { 2885 mpi3mr_wait_for_host_io(mrioc, 2886 MPI3MR_RAID_ERRREC_RESET_TIMEOUT); 2887 if (!mpi3mr_get_fw_pending_ios(mrioc)) { 2888 retval = SUCCESS; 2889 goto out; 2890 } 2891 } 2892 2893 mpi3mr_print_pending_host_io(mrioc); 2894 ret = mpi3mr_soft_reset_handler(mrioc, 2895 MPI3MR_RESET_FROM_EH_HOS, 1); 2896 if (ret) 2897 goto out; 2898 2899 retval = SUCCESS; 2900 out: 2901 sdev_printk(KERN_INFO, scmd->device, 2902 "Host reset is %s for scmd(%p)\n", 2903 ((retval == SUCCESS) ? "SUCCESS" : "FAILED"), scmd); 2904 2905 return retval; 2906 } 2907 2908 /** 2909 * mpi3mr_eh_target_reset - Target reset error handling callback 2910 * @scmd: SCSI command reference 2911 * 2912 * Issue Target reset Task Management and verify the scmd is 2913 * terminated successfully and return status accordingly. 2914 * 2915 * Return: SUCCESS of successful termination of the scmd else 2916 * FAILED 2917 */ 2918 static int mpi3mr_eh_target_reset(struct scsi_cmnd *scmd) 2919 { 2920 struct mpi3mr_ioc *mrioc = shost_priv(scmd->device->host); 2921 struct mpi3mr_stgt_priv_data *stgt_priv_data; 2922 struct mpi3mr_sdev_priv_data *sdev_priv_data; 2923 u16 dev_handle; 2924 u8 resp_code = 0; 2925 int retval = FAILED, ret = 0; 2926 2927 sdev_printk(KERN_INFO, scmd->device, 2928 "Attempting Target Reset! scmd(%p)\n", scmd); 2929 scsi_print_command(scmd); 2930 2931 sdev_priv_data = scmd->device->hostdata; 2932 if (!sdev_priv_data || !sdev_priv_data->tgt_priv_data) { 2933 sdev_printk(KERN_INFO, scmd->device, 2934 "SCSI device is not available\n"); 2935 retval = SUCCESS; 2936 goto out; 2937 } 2938 2939 stgt_priv_data = sdev_priv_data->tgt_priv_data; 2940 dev_handle = stgt_priv_data->dev_handle; 2941 sdev_printk(KERN_INFO, scmd->device, 2942 "Target Reset is issued to handle(0x%04x)\n", 2943 dev_handle); 2944 2945 ret = mpi3mr_issue_tm(mrioc, 2946 MPI3_SCSITASKMGMT_TASKTYPE_TARGET_RESET, dev_handle, 2947 sdev_priv_data->lun_id, MPI3MR_HOSTTAG_BLK_TMS, 2948 MPI3MR_RESETTM_TIMEOUT, &mrioc->host_tm_cmds, &resp_code, NULL); 2949 2950 if (ret) 2951 goto out; 2952 2953 retval = SUCCESS; 2954 out: 2955 sdev_printk(KERN_INFO, scmd->device, 2956 "Target reset is %s for scmd(%p)\n", 2957 ((retval == SUCCESS) ? "SUCCESS" : "FAILED"), scmd); 2958 2959 return retval; 2960 } 2961 2962 /** 2963 * mpi3mr_eh_dev_reset- Device reset error handling callback 2964 * @scmd: SCSI command reference 2965 * 2966 * Issue lun reset Task Management and verify the scmd is 2967 * terminated successfully and return status accordingly. 2968 * 2969 * Return: SUCCESS of successful termination of the scmd else 2970 * FAILED 2971 */ 2972 static int mpi3mr_eh_dev_reset(struct scsi_cmnd *scmd) 2973 { 2974 struct mpi3mr_ioc *mrioc = shost_priv(scmd->device->host); 2975 struct mpi3mr_stgt_priv_data *stgt_priv_data; 2976 struct mpi3mr_sdev_priv_data *sdev_priv_data; 2977 u16 dev_handle; 2978 u8 resp_code = 0; 2979 int retval = FAILED, ret = 0; 2980 2981 sdev_printk(KERN_INFO, scmd->device, 2982 "Attempting Device(lun) Reset! scmd(%p)\n", scmd); 2983 scsi_print_command(scmd); 2984 2985 sdev_priv_data = scmd->device->hostdata; 2986 if (!sdev_priv_data || !sdev_priv_data->tgt_priv_data) { 2987 sdev_printk(KERN_INFO, scmd->device, 2988 "SCSI device is not available\n"); 2989 retval = SUCCESS; 2990 goto out; 2991 } 2992 2993 stgt_priv_data = sdev_priv_data->tgt_priv_data; 2994 dev_handle = stgt_priv_data->dev_handle; 2995 sdev_printk(KERN_INFO, scmd->device, 2996 "Device(lun) Reset is issued to handle(0x%04x)\n", dev_handle); 2997 2998 ret = mpi3mr_issue_tm(mrioc, 2999 MPI3_SCSITASKMGMT_TASKTYPE_LOGICAL_UNIT_RESET, dev_handle, 3000 sdev_priv_data->lun_id, MPI3MR_HOSTTAG_BLK_TMS, 3001 MPI3MR_RESETTM_TIMEOUT, &mrioc->host_tm_cmds, &resp_code, NULL); 3002 3003 if (ret) 3004 goto out; 3005 3006 retval = SUCCESS; 3007 out: 3008 sdev_printk(KERN_INFO, scmd->device, 3009 "Device(lun) reset is %s for scmd(%p)\n", 3010 ((retval == SUCCESS) ? "SUCCESS" : "FAILED"), scmd); 3011 3012 return retval; 3013 } 3014 3015 /** 3016 * mpi3mr_scan_start - Scan start callback handler 3017 * @shost: SCSI host reference 3018 * 3019 * Issue port enable request asynchronously. 3020 * 3021 * Return: Nothing 3022 */ 3023 static void mpi3mr_scan_start(struct Scsi_Host *shost) 3024 { 3025 struct mpi3mr_ioc *mrioc = shost_priv(shost); 3026 3027 mrioc->scan_started = 1; 3028 ioc_info(mrioc, "%s :Issuing Port Enable\n", __func__); 3029 if (mpi3mr_issue_port_enable(mrioc, 1)) { 3030 ioc_err(mrioc, "%s :Issuing port enable failed\n", __func__); 3031 mrioc->scan_started = 0; 3032 mrioc->scan_failed = MPI3_IOCSTATUS_INTERNAL_ERROR; 3033 } 3034 } 3035 3036 /** 3037 * mpi3mr_scan_finished - Scan finished callback handler 3038 * @shost: SCSI host reference 3039 * @time: Jiffies from the scan start 3040 * 3041 * Checks whether the port enable is completed or timedout or 3042 * failed and set the scan status accordingly after taking any 3043 * recovery if required. 3044 * 3045 * Return: 1 on scan finished or timed out, 0 for in progress 3046 */ 3047 static int mpi3mr_scan_finished(struct Scsi_Host *shost, 3048 unsigned long time) 3049 { 3050 struct mpi3mr_ioc *mrioc = shost_priv(shost); 3051 u32 pe_timeout = MPI3MR_PORTENABLE_TIMEOUT; 3052 3053 if (time >= (pe_timeout * HZ)) { 3054 mrioc->init_cmds.is_waiting = 0; 3055 mrioc->init_cmds.callback = NULL; 3056 mrioc->init_cmds.state = MPI3MR_CMD_NOTUSED; 3057 ioc_err(mrioc, "%s :port enable request timed out\n", __func__); 3058 mrioc->is_driver_loading = 0; 3059 mpi3mr_soft_reset_handler(mrioc, 3060 MPI3MR_RESET_FROM_PE_TIMEOUT, 1); 3061 } 3062 3063 if (mrioc->scan_failed) { 3064 ioc_err(mrioc, 3065 "%s :port enable failed with (ioc_status=0x%08x)\n", 3066 __func__, mrioc->scan_failed); 3067 mrioc->is_driver_loading = 0; 3068 mrioc->stop_drv_processing = 1; 3069 return 1; 3070 } 3071 3072 if (mrioc->scan_started) 3073 return 0; 3074 ioc_info(mrioc, "%s :port enable: SUCCESS\n", __func__); 3075 mpi3mr_start_watchdog(mrioc); 3076 mrioc->is_driver_loading = 0; 3077 3078 return 1; 3079 } 3080 3081 /** 3082 * mpi3mr_slave_destroy - Slave destroy callback handler 3083 * @sdev: SCSI device reference 3084 * 3085 * Cleanup and free per device(lun) private data. 3086 * 3087 * Return: Nothing. 3088 */ 3089 static void mpi3mr_slave_destroy(struct scsi_device *sdev) 3090 { 3091 struct Scsi_Host *shost; 3092 struct mpi3mr_ioc *mrioc; 3093 struct mpi3mr_stgt_priv_data *scsi_tgt_priv_data; 3094 struct mpi3mr_tgt_dev *tgt_dev; 3095 unsigned long flags; 3096 struct scsi_target *starget; 3097 3098 if (!sdev->hostdata) 3099 return; 3100 3101 starget = scsi_target(sdev); 3102 shost = dev_to_shost(&starget->dev); 3103 mrioc = shost_priv(shost); 3104 scsi_tgt_priv_data = starget->hostdata; 3105 3106 scsi_tgt_priv_data->num_luns--; 3107 3108 spin_lock_irqsave(&mrioc->tgtdev_lock, flags); 3109 tgt_dev = __mpi3mr_get_tgtdev_by_perst_id(mrioc, starget->id); 3110 if (tgt_dev && (!scsi_tgt_priv_data->num_luns)) 3111 tgt_dev->starget = NULL; 3112 if (tgt_dev) 3113 mpi3mr_tgtdev_put(tgt_dev); 3114 spin_unlock_irqrestore(&mrioc->tgtdev_lock, flags); 3115 3116 kfree(sdev->hostdata); 3117 sdev->hostdata = NULL; 3118 } 3119 3120 /** 3121 * mpi3mr_target_destroy - Target destroy callback handler 3122 * @starget: SCSI target reference 3123 * 3124 * Cleanup and free per target private data. 3125 * 3126 * Return: Nothing. 3127 */ 3128 static void mpi3mr_target_destroy(struct scsi_target *starget) 3129 { 3130 struct Scsi_Host *shost; 3131 struct mpi3mr_ioc *mrioc; 3132 struct mpi3mr_stgt_priv_data *scsi_tgt_priv_data; 3133 struct mpi3mr_tgt_dev *tgt_dev; 3134 unsigned long flags; 3135 3136 if (!starget->hostdata) 3137 return; 3138 3139 shost = dev_to_shost(&starget->dev); 3140 mrioc = shost_priv(shost); 3141 scsi_tgt_priv_data = starget->hostdata; 3142 3143 spin_lock_irqsave(&mrioc->tgtdev_lock, flags); 3144 tgt_dev = __mpi3mr_get_tgtdev_from_tgtpriv(mrioc, scsi_tgt_priv_data); 3145 if (tgt_dev && (tgt_dev->starget == starget) && 3146 (tgt_dev->perst_id == starget->id)) 3147 tgt_dev->starget = NULL; 3148 if (tgt_dev) { 3149 scsi_tgt_priv_data->tgt_dev = NULL; 3150 scsi_tgt_priv_data->perst_id = 0; 3151 mpi3mr_tgtdev_put(tgt_dev); 3152 mpi3mr_tgtdev_put(tgt_dev); 3153 } 3154 spin_unlock_irqrestore(&mrioc->tgtdev_lock, flags); 3155 3156 kfree(starget->hostdata); 3157 starget->hostdata = NULL; 3158 } 3159 3160 /** 3161 * mpi3mr_slave_configure - Slave configure callback handler 3162 * @sdev: SCSI device reference 3163 * 3164 * Configure queue depth, max hardware sectors and virt boundary 3165 * as required 3166 * 3167 * Return: 0 always. 3168 */ 3169 static int mpi3mr_slave_configure(struct scsi_device *sdev) 3170 { 3171 struct scsi_target *starget; 3172 struct Scsi_Host *shost; 3173 struct mpi3mr_ioc *mrioc; 3174 struct mpi3mr_tgt_dev *tgt_dev; 3175 unsigned long flags; 3176 int retval = 0; 3177 3178 starget = scsi_target(sdev); 3179 shost = dev_to_shost(&starget->dev); 3180 mrioc = shost_priv(shost); 3181 3182 spin_lock_irqsave(&mrioc->tgtdev_lock, flags); 3183 tgt_dev = __mpi3mr_get_tgtdev_by_perst_id(mrioc, starget->id); 3184 spin_unlock_irqrestore(&mrioc->tgtdev_lock, flags); 3185 if (!tgt_dev) 3186 return -ENXIO; 3187 3188 mpi3mr_change_queue_depth(sdev, tgt_dev->q_depth); 3189 switch (tgt_dev->dev_type) { 3190 case MPI3_DEVICE_DEVFORM_PCIE: 3191 /*The block layer hw sector size = 512*/ 3192 blk_queue_max_hw_sectors(sdev->request_queue, 3193 tgt_dev->dev_spec.pcie_inf.mdts / 512); 3194 blk_queue_virt_boundary(sdev->request_queue, 3195 ((1 << tgt_dev->dev_spec.pcie_inf.pgsz) - 1)); 3196 break; 3197 default: 3198 break; 3199 } 3200 3201 mpi3mr_tgtdev_put(tgt_dev); 3202 3203 return retval; 3204 } 3205 3206 /** 3207 * mpi3mr_slave_alloc -Slave alloc callback handler 3208 * @sdev: SCSI device reference 3209 * 3210 * Allocate per device(lun) private data and initialize it. 3211 * 3212 * Return: 0 on success -ENOMEM on memory allocation failure. 3213 */ 3214 static int mpi3mr_slave_alloc(struct scsi_device *sdev) 3215 { 3216 struct Scsi_Host *shost; 3217 struct mpi3mr_ioc *mrioc; 3218 struct mpi3mr_stgt_priv_data *scsi_tgt_priv_data; 3219 struct mpi3mr_tgt_dev *tgt_dev; 3220 struct mpi3mr_sdev_priv_data *scsi_dev_priv_data; 3221 unsigned long flags; 3222 struct scsi_target *starget; 3223 int retval = 0; 3224 3225 starget = scsi_target(sdev); 3226 shost = dev_to_shost(&starget->dev); 3227 mrioc = shost_priv(shost); 3228 scsi_tgt_priv_data = starget->hostdata; 3229 3230 spin_lock_irqsave(&mrioc->tgtdev_lock, flags); 3231 tgt_dev = __mpi3mr_get_tgtdev_by_perst_id(mrioc, starget->id); 3232 3233 if (tgt_dev) { 3234 if (tgt_dev->starget == NULL) 3235 tgt_dev->starget = starget; 3236 mpi3mr_tgtdev_put(tgt_dev); 3237 retval = 0; 3238 } else { 3239 spin_unlock_irqrestore(&mrioc->tgtdev_lock, flags); 3240 return -ENXIO; 3241 } 3242 3243 spin_unlock_irqrestore(&mrioc->tgtdev_lock, flags); 3244 3245 scsi_dev_priv_data = kzalloc(sizeof(*scsi_dev_priv_data), GFP_KERNEL); 3246 if (!scsi_dev_priv_data) 3247 return -ENOMEM; 3248 3249 scsi_dev_priv_data->lun_id = sdev->lun; 3250 scsi_dev_priv_data->tgt_priv_data = scsi_tgt_priv_data; 3251 sdev->hostdata = scsi_dev_priv_data; 3252 3253 scsi_tgt_priv_data->num_luns++; 3254 3255 return retval; 3256 } 3257 3258 /** 3259 * mpi3mr_target_alloc - Target alloc callback handler 3260 * @starget: SCSI target reference 3261 * 3262 * Allocate per target private data and initialize it. 3263 * 3264 * Return: 0 on success -ENOMEM on memory allocation failure. 3265 */ 3266 static int mpi3mr_target_alloc(struct scsi_target *starget) 3267 { 3268 struct Scsi_Host *shost = dev_to_shost(&starget->dev); 3269 struct mpi3mr_ioc *mrioc = shost_priv(shost); 3270 struct mpi3mr_stgt_priv_data *scsi_tgt_priv_data; 3271 struct mpi3mr_tgt_dev *tgt_dev; 3272 unsigned long flags; 3273 int retval = 0; 3274 3275 scsi_tgt_priv_data = kzalloc(sizeof(*scsi_tgt_priv_data), GFP_KERNEL); 3276 if (!scsi_tgt_priv_data) 3277 return -ENOMEM; 3278 3279 starget->hostdata = scsi_tgt_priv_data; 3280 3281 spin_lock_irqsave(&mrioc->tgtdev_lock, flags); 3282 tgt_dev = __mpi3mr_get_tgtdev_by_perst_id(mrioc, starget->id); 3283 if (tgt_dev && !tgt_dev->is_hidden) { 3284 scsi_tgt_priv_data->starget = starget; 3285 scsi_tgt_priv_data->dev_handle = tgt_dev->dev_handle; 3286 scsi_tgt_priv_data->perst_id = tgt_dev->perst_id; 3287 scsi_tgt_priv_data->dev_type = tgt_dev->dev_type; 3288 scsi_tgt_priv_data->tgt_dev = tgt_dev; 3289 tgt_dev->starget = starget; 3290 atomic_set(&scsi_tgt_priv_data->block_io, 0); 3291 retval = 0; 3292 } else 3293 retval = -ENXIO; 3294 spin_unlock_irqrestore(&mrioc->tgtdev_lock, flags); 3295 3296 return retval; 3297 } 3298 3299 /** 3300 * mpi3mr_check_return_unmap - Whether an unmap is allowed 3301 * @mrioc: Adapter instance reference 3302 * @scmd: SCSI Command reference 3303 * 3304 * The controller hardware cannot handle certain unmap commands 3305 * for NVMe drives, this routine checks those and return true 3306 * and completes the SCSI command with proper status and sense 3307 * data. 3308 * 3309 * Return: TRUE for not allowed unmap, FALSE otherwise. 3310 */ 3311 static bool mpi3mr_check_return_unmap(struct mpi3mr_ioc *mrioc, 3312 struct scsi_cmnd *scmd) 3313 { 3314 unsigned char *buf; 3315 u16 param_len, desc_len; 3316 3317 param_len = get_unaligned_be16(scmd->cmnd + 7); 3318 3319 if (!param_len) { 3320 ioc_warn(mrioc, 3321 "%s: cdb received with zero parameter length\n", 3322 __func__); 3323 scsi_print_command(scmd); 3324 scmd->result = DID_OK << 16; 3325 scmd->scsi_done(scmd); 3326 return true; 3327 } 3328 3329 if (param_len < 24) { 3330 ioc_warn(mrioc, 3331 "%s: cdb received with invalid param_len: %d\n", 3332 __func__, param_len); 3333 scsi_print_command(scmd); 3334 scmd->result = SAM_STAT_CHECK_CONDITION; 3335 scsi_build_sense_buffer(0, scmd->sense_buffer, ILLEGAL_REQUEST, 3336 0x1A, 0); 3337 scmd->scsi_done(scmd); 3338 return true; 3339 } 3340 if (param_len != scsi_bufflen(scmd)) { 3341 ioc_warn(mrioc, 3342 "%s: cdb received with param_len: %d bufflen: %d\n", 3343 __func__, param_len, scsi_bufflen(scmd)); 3344 scsi_print_command(scmd); 3345 scmd->result = SAM_STAT_CHECK_CONDITION; 3346 scsi_build_sense_buffer(0, scmd->sense_buffer, ILLEGAL_REQUEST, 3347 0x1A, 0); 3348 scmd->scsi_done(scmd); 3349 return true; 3350 } 3351 buf = kzalloc(scsi_bufflen(scmd), GFP_ATOMIC); 3352 if (!buf) { 3353 scsi_print_command(scmd); 3354 scmd->result = SAM_STAT_CHECK_CONDITION; 3355 scsi_build_sense_buffer(0, scmd->sense_buffer, ILLEGAL_REQUEST, 3356 0x55, 0x03); 3357 scmd->scsi_done(scmd); 3358 return true; 3359 } 3360 scsi_sg_copy_to_buffer(scmd, buf, scsi_bufflen(scmd)); 3361 desc_len = get_unaligned_be16(&buf[2]); 3362 3363 if (desc_len < 16) { 3364 ioc_warn(mrioc, 3365 "%s: Invalid descriptor length in param list: %d\n", 3366 __func__, desc_len); 3367 scsi_print_command(scmd); 3368 scmd->result = SAM_STAT_CHECK_CONDITION; 3369 scsi_build_sense_buffer(0, scmd->sense_buffer, ILLEGAL_REQUEST, 3370 0x26, 0); 3371 scmd->scsi_done(scmd); 3372 kfree(buf); 3373 return true; 3374 } 3375 3376 if (param_len > (desc_len + 8)) { 3377 scsi_print_command(scmd); 3378 ioc_warn(mrioc, 3379 "%s: Truncating param_len(%d) to desc_len+8(%d)\n", 3380 __func__, param_len, (desc_len + 8)); 3381 param_len = desc_len + 8; 3382 put_unaligned_be16(param_len, scmd->cmnd + 7); 3383 scsi_print_command(scmd); 3384 } 3385 3386 kfree(buf); 3387 return false; 3388 } 3389 3390 /** 3391 * mpi3mr_allow_scmd_to_fw - Command is allowed during shutdown 3392 * @scmd: SCSI Command reference 3393 * 3394 * Checks whether a cdb is allowed during shutdown or not. 3395 * 3396 * Return: TRUE for allowed commands, FALSE otherwise. 3397 */ 3398 3399 inline bool mpi3mr_allow_scmd_to_fw(struct scsi_cmnd *scmd) 3400 { 3401 switch (scmd->cmnd[0]) { 3402 case SYNCHRONIZE_CACHE: 3403 case START_STOP: 3404 return true; 3405 default: 3406 return false; 3407 } 3408 } 3409 3410 /** 3411 * mpi3mr_qcmd - I/O request despatcher 3412 * @shost: SCSI Host reference 3413 * @scmd: SCSI Command reference 3414 * 3415 * Issues the SCSI Command as an MPI3 request. 3416 * 3417 * Return: 0 on successful queueing of the request or if the 3418 * request is completed with failure. 3419 * SCSI_MLQUEUE_DEVICE_BUSY when the device is busy. 3420 * SCSI_MLQUEUE_HOST_BUSY when the host queue is full. 3421 */ 3422 static int mpi3mr_qcmd(struct Scsi_Host *shost, 3423 struct scsi_cmnd *scmd) 3424 { 3425 struct mpi3mr_ioc *mrioc = shost_priv(shost); 3426 struct mpi3mr_stgt_priv_data *stgt_priv_data; 3427 struct mpi3mr_sdev_priv_data *sdev_priv_data; 3428 struct scmd_priv *scmd_priv_data = NULL; 3429 struct mpi3_scsi_io_request *scsiio_req = NULL; 3430 struct op_req_qinfo *op_req_q = NULL; 3431 int retval = 0; 3432 u16 dev_handle; 3433 u16 host_tag; 3434 u32 scsiio_flags = 0; 3435 struct request *rq = scsi_cmd_to_rq(scmd); 3436 int iprio_class; 3437 3438 sdev_priv_data = scmd->device->hostdata; 3439 if (!sdev_priv_data || !sdev_priv_data->tgt_priv_data) { 3440 scmd->result = DID_NO_CONNECT << 16; 3441 scmd->scsi_done(scmd); 3442 goto out; 3443 } 3444 3445 if (mrioc->stop_drv_processing && 3446 !(mpi3mr_allow_scmd_to_fw(scmd))) { 3447 scmd->result = DID_NO_CONNECT << 16; 3448 scmd->scsi_done(scmd); 3449 goto out; 3450 } 3451 3452 if (mrioc->reset_in_progress) { 3453 retval = SCSI_MLQUEUE_HOST_BUSY; 3454 goto out; 3455 } 3456 3457 stgt_priv_data = sdev_priv_data->tgt_priv_data; 3458 3459 dev_handle = stgt_priv_data->dev_handle; 3460 if (dev_handle == MPI3MR_INVALID_DEV_HANDLE) { 3461 scmd->result = DID_NO_CONNECT << 16; 3462 scmd->scsi_done(scmd); 3463 goto out; 3464 } 3465 if (stgt_priv_data->dev_removed) { 3466 scmd->result = DID_NO_CONNECT << 16; 3467 scmd->scsi_done(scmd); 3468 goto out; 3469 } 3470 3471 if (atomic_read(&stgt_priv_data->block_io)) { 3472 if (mrioc->stop_drv_processing) { 3473 scmd->result = DID_NO_CONNECT << 16; 3474 scmd->scsi_done(scmd); 3475 goto out; 3476 } 3477 retval = SCSI_MLQUEUE_DEVICE_BUSY; 3478 goto out; 3479 } 3480 3481 if ((scmd->cmnd[0] == UNMAP) && 3482 (stgt_priv_data->dev_type == MPI3_DEVICE_DEVFORM_PCIE) && 3483 mpi3mr_check_return_unmap(mrioc, scmd)) 3484 goto out; 3485 3486 host_tag = mpi3mr_host_tag_for_scmd(mrioc, scmd); 3487 if (host_tag == MPI3MR_HOSTTAG_INVALID) { 3488 scmd->result = DID_ERROR << 16; 3489 scmd->scsi_done(scmd); 3490 goto out; 3491 } 3492 3493 if (scmd->sc_data_direction == DMA_FROM_DEVICE) 3494 scsiio_flags = MPI3_SCSIIO_FLAGS_DATADIRECTION_READ; 3495 else if (scmd->sc_data_direction == DMA_TO_DEVICE) 3496 scsiio_flags = MPI3_SCSIIO_FLAGS_DATADIRECTION_WRITE; 3497 else 3498 scsiio_flags = MPI3_SCSIIO_FLAGS_DATADIRECTION_NO_DATA_TRANSFER; 3499 3500 scsiio_flags |= MPI3_SCSIIO_FLAGS_TASKATTRIBUTE_SIMPLEQ; 3501 3502 if (sdev_priv_data->ncq_prio_enable) { 3503 iprio_class = IOPRIO_PRIO_CLASS(req_get_ioprio(rq)); 3504 if (iprio_class == IOPRIO_CLASS_RT) 3505 scsiio_flags |= 1 << MPI3_SCSIIO_FLAGS_CMDPRI_SHIFT; 3506 } 3507 3508 if (scmd->cmd_len > 16) 3509 scsiio_flags |= MPI3_SCSIIO_FLAGS_CDB_GREATER_THAN_16; 3510 3511 scmd_priv_data = scsi_cmd_priv(scmd); 3512 memset(scmd_priv_data->mpi3mr_scsiio_req, 0, MPI3MR_ADMIN_REQ_FRAME_SZ); 3513 scsiio_req = (struct mpi3_scsi_io_request *)scmd_priv_data->mpi3mr_scsiio_req; 3514 scsiio_req->function = MPI3_FUNCTION_SCSI_IO; 3515 scsiio_req->host_tag = cpu_to_le16(host_tag); 3516 3517 mpi3mr_setup_eedp(mrioc, scmd, scsiio_req); 3518 3519 memcpy(scsiio_req->cdb.cdb32, scmd->cmnd, scmd->cmd_len); 3520 scsiio_req->data_length = cpu_to_le32(scsi_bufflen(scmd)); 3521 scsiio_req->dev_handle = cpu_to_le16(dev_handle); 3522 scsiio_req->flags = cpu_to_le32(scsiio_flags); 3523 int_to_scsilun(sdev_priv_data->lun_id, 3524 (struct scsi_lun *)scsiio_req->lun); 3525 3526 if (mpi3mr_build_sg_scmd(mrioc, scmd, scsiio_req)) { 3527 mpi3mr_clear_scmd_priv(mrioc, scmd); 3528 retval = SCSI_MLQUEUE_HOST_BUSY; 3529 goto out; 3530 } 3531 op_req_q = &mrioc->req_qinfo[scmd_priv_data->req_q_idx]; 3532 3533 if (mpi3mr_op_request_post(mrioc, op_req_q, 3534 scmd_priv_data->mpi3mr_scsiio_req)) { 3535 mpi3mr_clear_scmd_priv(mrioc, scmd); 3536 retval = SCSI_MLQUEUE_HOST_BUSY; 3537 goto out; 3538 } 3539 3540 out: 3541 return retval; 3542 } 3543 3544 static struct scsi_host_template mpi3mr_driver_template = { 3545 .module = THIS_MODULE, 3546 .name = "MPI3 Storage Controller", 3547 .proc_name = MPI3MR_DRIVER_NAME, 3548 .queuecommand = mpi3mr_qcmd, 3549 .target_alloc = mpi3mr_target_alloc, 3550 .slave_alloc = mpi3mr_slave_alloc, 3551 .slave_configure = mpi3mr_slave_configure, 3552 .target_destroy = mpi3mr_target_destroy, 3553 .slave_destroy = mpi3mr_slave_destroy, 3554 .scan_finished = mpi3mr_scan_finished, 3555 .scan_start = mpi3mr_scan_start, 3556 .change_queue_depth = mpi3mr_change_queue_depth, 3557 .eh_device_reset_handler = mpi3mr_eh_dev_reset, 3558 .eh_target_reset_handler = mpi3mr_eh_target_reset, 3559 .eh_host_reset_handler = mpi3mr_eh_host_reset, 3560 .bios_param = mpi3mr_bios_param, 3561 .map_queues = mpi3mr_map_queues, 3562 .no_write_same = 1, 3563 .can_queue = 1, 3564 .this_id = -1, 3565 .sg_tablesize = MPI3MR_SG_DEPTH, 3566 /* max xfer supported is 1M (2K in 512 byte sized sectors) 3567 */ 3568 .max_sectors = 2048, 3569 .cmd_per_lun = MPI3MR_MAX_CMDS_LUN, 3570 .track_queue_depth = 1, 3571 .cmd_size = sizeof(struct scmd_priv), 3572 }; 3573 3574 /** 3575 * mpi3mr_init_drv_cmd - Initialize internal command tracker 3576 * @cmdptr: Internal command tracker 3577 * @host_tag: Host tag used for the specific command 3578 * 3579 * Initialize the internal command tracker structure with 3580 * specified host tag. 3581 * 3582 * Return: Nothing. 3583 */ 3584 static inline void mpi3mr_init_drv_cmd(struct mpi3mr_drv_cmd *cmdptr, 3585 u16 host_tag) 3586 { 3587 mutex_init(&cmdptr->mutex); 3588 cmdptr->reply = NULL; 3589 cmdptr->state = MPI3MR_CMD_NOTUSED; 3590 cmdptr->dev_handle = MPI3MR_INVALID_DEV_HANDLE; 3591 cmdptr->host_tag = host_tag; 3592 } 3593 3594 /** 3595 * osintfc_mrioc_security_status -Check controller secure status 3596 * @pdev: PCI device instance 3597 * 3598 * Read the Device Serial Number capability from PCI config 3599 * space and decide whether the controller is secure or not. 3600 * 3601 * Return: 0 on success, non-zero on failure. 3602 */ 3603 static int 3604 osintfc_mrioc_security_status(struct pci_dev *pdev) 3605 { 3606 u32 cap_data; 3607 int base; 3608 u32 ctlr_status; 3609 u32 debug_status; 3610 int retval = 0; 3611 3612 base = pci_find_ext_capability(pdev, PCI_EXT_CAP_ID_DSN); 3613 if (!base) { 3614 dev_err(&pdev->dev, 3615 "%s: PCI_EXT_CAP_ID_DSN is not supported\n", __func__); 3616 return -1; 3617 } 3618 3619 pci_read_config_dword(pdev, base + 4, &cap_data); 3620 3621 debug_status = cap_data & MPI3MR_CTLR_SECURE_DBG_STATUS_MASK; 3622 ctlr_status = cap_data & MPI3MR_CTLR_SECURITY_STATUS_MASK; 3623 3624 switch (ctlr_status) { 3625 case MPI3MR_INVALID_DEVICE: 3626 dev_err(&pdev->dev, 3627 "%s: Non secure ctlr (Invalid) is detected: DID: 0x%x: SVID: 0x%x: SDID: 0x%x\n", 3628 __func__, pdev->device, pdev->subsystem_vendor, 3629 pdev->subsystem_device); 3630 retval = -1; 3631 break; 3632 case MPI3MR_CONFIG_SECURE_DEVICE: 3633 if (!debug_status) 3634 dev_info(&pdev->dev, 3635 "%s: Config secure ctlr is detected\n", 3636 __func__); 3637 break; 3638 case MPI3MR_HARD_SECURE_DEVICE: 3639 break; 3640 case MPI3MR_TAMPERED_DEVICE: 3641 dev_err(&pdev->dev, 3642 "%s: Non secure ctlr (Tampered) is detected: DID: 0x%x: SVID: 0x%x: SDID: 0x%x\n", 3643 __func__, pdev->device, pdev->subsystem_vendor, 3644 pdev->subsystem_device); 3645 retval = -1; 3646 break; 3647 default: 3648 retval = -1; 3649 break; 3650 } 3651 3652 if (!retval && debug_status) { 3653 dev_err(&pdev->dev, 3654 "%s: Non secure ctlr (Secure Dbg) is detected: DID: 0x%x: SVID: 0x%x: SDID: 0x%x\n", 3655 __func__, pdev->device, pdev->subsystem_vendor, 3656 pdev->subsystem_device); 3657 retval = -1; 3658 } 3659 3660 return retval; 3661 } 3662 3663 /** 3664 * mpi3mr_probe - PCI probe callback 3665 * @pdev: PCI device instance 3666 * @id: PCI device ID details 3667 * 3668 * controller initialization routine. Checks the security status 3669 * of the controller and if it is invalid or tampered return the 3670 * probe without initializing the controller. Otherwise, 3671 * allocate per adapter instance through shost_priv and 3672 * initialize controller specific data structures, initializae 3673 * the controller hardware, add shost to the SCSI subsystem. 3674 * 3675 * Return: 0 on success, non-zero on failure. 3676 */ 3677 3678 static int 3679 mpi3mr_probe(struct pci_dev *pdev, const struct pci_device_id *id) 3680 { 3681 struct mpi3mr_ioc *mrioc = NULL; 3682 struct Scsi_Host *shost = NULL; 3683 int retval = 0, i; 3684 3685 if (osintfc_mrioc_security_status(pdev)) { 3686 warn_non_secure_ctlr = 1; 3687 return 1; /* For Invalid and Tampered device */ 3688 } 3689 3690 shost = scsi_host_alloc(&mpi3mr_driver_template, 3691 sizeof(struct mpi3mr_ioc)); 3692 if (!shost) { 3693 retval = -ENODEV; 3694 goto shost_failed; 3695 } 3696 3697 mrioc = shost_priv(shost); 3698 mrioc->id = mrioc_ids++; 3699 sprintf(mrioc->driver_name, "%s", MPI3MR_DRIVER_NAME); 3700 sprintf(mrioc->name, "%s%d", mrioc->driver_name, mrioc->id); 3701 INIT_LIST_HEAD(&mrioc->list); 3702 spin_lock(&mrioc_list_lock); 3703 list_add_tail(&mrioc->list, &mrioc_list); 3704 spin_unlock(&mrioc_list_lock); 3705 3706 spin_lock_init(&mrioc->admin_req_lock); 3707 spin_lock_init(&mrioc->reply_free_queue_lock); 3708 spin_lock_init(&mrioc->sbq_lock); 3709 spin_lock_init(&mrioc->fwevt_lock); 3710 spin_lock_init(&mrioc->tgtdev_lock); 3711 spin_lock_init(&mrioc->watchdog_lock); 3712 spin_lock_init(&mrioc->chain_buf_lock); 3713 3714 INIT_LIST_HEAD(&mrioc->fwevt_list); 3715 INIT_LIST_HEAD(&mrioc->tgtdev_list); 3716 INIT_LIST_HEAD(&mrioc->delayed_rmhs_list); 3717 3718 mutex_init(&mrioc->reset_mutex); 3719 mpi3mr_init_drv_cmd(&mrioc->init_cmds, MPI3MR_HOSTTAG_INITCMDS); 3720 mpi3mr_init_drv_cmd(&mrioc->host_tm_cmds, MPI3MR_HOSTTAG_BLK_TMS); 3721 3722 for (i = 0; i < MPI3MR_NUM_DEVRMCMD; i++) 3723 mpi3mr_init_drv_cmd(&mrioc->dev_rmhs_cmds[i], 3724 MPI3MR_HOSTTAG_DEVRMCMD_MIN + i); 3725 3726 if (pdev->revision) 3727 mrioc->enable_segqueue = true; 3728 3729 init_waitqueue_head(&mrioc->reset_waitq); 3730 mrioc->logging_level = logging_level; 3731 mrioc->shost = shost; 3732 mrioc->pdev = pdev; 3733 3734 /* init shost parameters */ 3735 shost->max_cmd_len = MPI3MR_MAX_CDB_LENGTH; 3736 shost->max_lun = -1; 3737 shost->unique_id = mrioc->id; 3738 3739 shost->max_channel = 1; 3740 shost->max_id = 0xFFFFFFFF; 3741 3742 if (prot_mask >= 0) 3743 scsi_host_set_prot(shost, prot_mask); 3744 else { 3745 prot_mask = SHOST_DIF_TYPE1_PROTECTION 3746 | SHOST_DIF_TYPE2_PROTECTION 3747 | SHOST_DIF_TYPE3_PROTECTION; 3748 scsi_host_set_prot(shost, prot_mask); 3749 } 3750 3751 ioc_info(mrioc, 3752 "%s :host protection capabilities enabled %s%s%s%s%s%s%s\n", 3753 __func__, 3754 (prot_mask & SHOST_DIF_TYPE1_PROTECTION) ? " DIF1" : "", 3755 (prot_mask & SHOST_DIF_TYPE2_PROTECTION) ? " DIF2" : "", 3756 (prot_mask & SHOST_DIF_TYPE3_PROTECTION) ? " DIF3" : "", 3757 (prot_mask & SHOST_DIX_TYPE0_PROTECTION) ? " DIX0" : "", 3758 (prot_mask & SHOST_DIX_TYPE1_PROTECTION) ? " DIX1" : "", 3759 (prot_mask & SHOST_DIX_TYPE2_PROTECTION) ? " DIX2" : "", 3760 (prot_mask & SHOST_DIX_TYPE3_PROTECTION) ? " DIX3" : ""); 3761 3762 if (prot_guard_mask) 3763 scsi_host_set_guard(shost, (prot_guard_mask & 3)); 3764 else 3765 scsi_host_set_guard(shost, SHOST_DIX_GUARD_CRC); 3766 3767 snprintf(mrioc->fwevt_worker_name, sizeof(mrioc->fwevt_worker_name), 3768 "%s%d_fwevt_wrkr", mrioc->driver_name, mrioc->id); 3769 mrioc->fwevt_worker_thread = alloc_ordered_workqueue( 3770 mrioc->fwevt_worker_name, WQ_MEM_RECLAIM); 3771 if (!mrioc->fwevt_worker_thread) { 3772 ioc_err(mrioc, "failure at %s:%d/%s()!\n", 3773 __FILE__, __LINE__, __func__); 3774 retval = -ENODEV; 3775 goto out_fwevtthread_failed; 3776 } 3777 3778 mrioc->is_driver_loading = 1; 3779 if (mpi3mr_init_ioc(mrioc, MPI3MR_IT_INIT)) { 3780 ioc_err(mrioc, "failure at %s:%d/%s()!\n", 3781 __FILE__, __LINE__, __func__); 3782 retval = -ENODEV; 3783 goto out_iocinit_failed; 3784 } 3785 3786 shost->nr_hw_queues = mrioc->num_op_reply_q; 3787 shost->can_queue = mrioc->max_host_ios; 3788 shost->sg_tablesize = MPI3MR_SG_DEPTH; 3789 shost->max_id = mrioc->facts.max_perids; 3790 3791 retval = scsi_add_host(shost, &pdev->dev); 3792 if (retval) { 3793 ioc_err(mrioc, "failure at %s:%d/%s()!\n", 3794 __FILE__, __LINE__, __func__); 3795 goto addhost_failed; 3796 } 3797 3798 scsi_scan_host(shost); 3799 return retval; 3800 3801 addhost_failed: 3802 mpi3mr_cleanup_ioc(mrioc, MPI3MR_COMPLETE_CLEANUP); 3803 out_iocinit_failed: 3804 destroy_workqueue(mrioc->fwevt_worker_thread); 3805 out_fwevtthread_failed: 3806 spin_lock(&mrioc_list_lock); 3807 list_del(&mrioc->list); 3808 spin_unlock(&mrioc_list_lock); 3809 scsi_host_put(shost); 3810 shost_failed: 3811 return retval; 3812 } 3813 3814 /** 3815 * mpi3mr_remove - PCI remove callback 3816 * @pdev: PCI device instance 3817 * 3818 * Free up all memory and resources associated with the 3819 * controllerand target devices, unregister the shost. 3820 * 3821 * Return: Nothing. 3822 */ 3823 static void mpi3mr_remove(struct pci_dev *pdev) 3824 { 3825 struct Scsi_Host *shost = pci_get_drvdata(pdev); 3826 struct mpi3mr_ioc *mrioc; 3827 struct workqueue_struct *wq; 3828 unsigned long flags; 3829 struct mpi3mr_tgt_dev *tgtdev, *tgtdev_next; 3830 3831 if (!shost) 3832 return; 3833 3834 mrioc = shost_priv(shost); 3835 while (mrioc->reset_in_progress || mrioc->is_driver_loading) 3836 ssleep(1); 3837 3838 mrioc->stop_drv_processing = 1; 3839 mpi3mr_cleanup_fwevt_list(mrioc); 3840 spin_lock_irqsave(&mrioc->fwevt_lock, flags); 3841 wq = mrioc->fwevt_worker_thread; 3842 mrioc->fwevt_worker_thread = NULL; 3843 spin_unlock_irqrestore(&mrioc->fwevt_lock, flags); 3844 if (wq) 3845 destroy_workqueue(wq); 3846 scsi_remove_host(shost); 3847 3848 list_for_each_entry_safe(tgtdev, tgtdev_next, &mrioc->tgtdev_list, 3849 list) { 3850 mpi3mr_remove_tgtdev_from_host(mrioc, tgtdev); 3851 mpi3mr_tgtdev_del_from_list(mrioc, tgtdev); 3852 mpi3mr_tgtdev_put(tgtdev); 3853 } 3854 mpi3mr_cleanup_ioc(mrioc, MPI3MR_COMPLETE_CLEANUP); 3855 3856 spin_lock(&mrioc_list_lock); 3857 list_del(&mrioc->list); 3858 spin_unlock(&mrioc_list_lock); 3859 3860 scsi_host_put(shost); 3861 } 3862 3863 /** 3864 * mpi3mr_shutdown - PCI shutdown callback 3865 * @pdev: PCI device instance 3866 * 3867 * Free up all memory and resources associated with the 3868 * controller 3869 * 3870 * Return: Nothing. 3871 */ 3872 static void mpi3mr_shutdown(struct pci_dev *pdev) 3873 { 3874 struct Scsi_Host *shost = pci_get_drvdata(pdev); 3875 struct mpi3mr_ioc *mrioc; 3876 struct workqueue_struct *wq; 3877 unsigned long flags; 3878 3879 if (!shost) 3880 return; 3881 3882 mrioc = shost_priv(shost); 3883 while (mrioc->reset_in_progress || mrioc->is_driver_loading) 3884 ssleep(1); 3885 3886 mrioc->stop_drv_processing = 1; 3887 mpi3mr_cleanup_fwevt_list(mrioc); 3888 spin_lock_irqsave(&mrioc->fwevt_lock, flags); 3889 wq = mrioc->fwevt_worker_thread; 3890 mrioc->fwevt_worker_thread = NULL; 3891 spin_unlock_irqrestore(&mrioc->fwevt_lock, flags); 3892 if (wq) 3893 destroy_workqueue(wq); 3894 mpi3mr_cleanup_ioc(mrioc, MPI3MR_COMPLETE_CLEANUP); 3895 } 3896 3897 #ifdef CONFIG_PM 3898 /** 3899 * mpi3mr_suspend - PCI power management suspend callback 3900 * @pdev: PCI device instance 3901 * @state: New power state 3902 * 3903 * Change the power state to the given value and cleanup the IOC 3904 * by issuing MUR and shutdown notification 3905 * 3906 * Return: 0 always. 3907 */ 3908 static int mpi3mr_suspend(struct pci_dev *pdev, pm_message_t state) 3909 { 3910 struct Scsi_Host *shost = pci_get_drvdata(pdev); 3911 struct mpi3mr_ioc *mrioc; 3912 pci_power_t device_state; 3913 3914 if (!shost) 3915 return 0; 3916 3917 mrioc = shost_priv(shost); 3918 while (mrioc->reset_in_progress || mrioc->is_driver_loading) 3919 ssleep(1); 3920 mrioc->stop_drv_processing = 1; 3921 mpi3mr_cleanup_fwevt_list(mrioc); 3922 scsi_block_requests(shost); 3923 mpi3mr_stop_watchdog(mrioc); 3924 mpi3mr_cleanup_ioc(mrioc, MPI3MR_SUSPEND); 3925 3926 device_state = pci_choose_state(pdev, state); 3927 ioc_info(mrioc, "pdev=0x%p, slot=%s, entering operating state [D%d]\n", 3928 pdev, pci_name(pdev), device_state); 3929 pci_save_state(pdev); 3930 pci_set_power_state(pdev, device_state); 3931 mpi3mr_cleanup_resources(mrioc); 3932 3933 return 0; 3934 } 3935 3936 /** 3937 * mpi3mr_resume - PCI power management resume callback 3938 * @pdev: PCI device instance 3939 * 3940 * Restore the power state to D0 and reinitialize the controller 3941 * and resume I/O operations to the target devices 3942 * 3943 * Return: 0 on success, non-zero on failure 3944 */ 3945 static int mpi3mr_resume(struct pci_dev *pdev) 3946 { 3947 struct Scsi_Host *shost = pci_get_drvdata(pdev); 3948 struct mpi3mr_ioc *mrioc; 3949 pci_power_t device_state = pdev->current_state; 3950 int r; 3951 3952 if (!shost) 3953 return 0; 3954 3955 mrioc = shost_priv(shost); 3956 3957 ioc_info(mrioc, "pdev=0x%p, slot=%s, previous operating state [D%d]\n", 3958 pdev, pci_name(pdev), device_state); 3959 pci_set_power_state(pdev, PCI_D0); 3960 pci_enable_wake(pdev, PCI_D0, 0); 3961 pci_restore_state(pdev); 3962 mrioc->pdev = pdev; 3963 mrioc->cpu_count = num_online_cpus(); 3964 r = mpi3mr_setup_resources(mrioc); 3965 if (r) { 3966 ioc_info(mrioc, "%s: Setup resources failed[%d]\n", 3967 __func__, r); 3968 return r; 3969 } 3970 3971 mrioc->stop_drv_processing = 0; 3972 mpi3mr_memset_buffers(mrioc); 3973 mpi3mr_init_ioc(mrioc, MPI3MR_IT_RESUME); 3974 scsi_unblock_requests(shost); 3975 mpi3mr_start_watchdog(mrioc); 3976 3977 return 0; 3978 } 3979 #endif 3980 3981 static const struct pci_device_id mpi3mr_pci_id_table[] = { 3982 { 3983 PCI_DEVICE_SUB(PCI_VENDOR_ID_LSI_LOGIC, 0x00A5, 3984 PCI_ANY_ID, PCI_ANY_ID) 3985 }, 3986 { 0 } 3987 }; 3988 MODULE_DEVICE_TABLE(pci, mpi3mr_pci_id_table); 3989 3990 static struct pci_driver mpi3mr_pci_driver = { 3991 .name = MPI3MR_DRIVER_NAME, 3992 .id_table = mpi3mr_pci_id_table, 3993 .probe = mpi3mr_probe, 3994 .remove = mpi3mr_remove, 3995 .shutdown = mpi3mr_shutdown, 3996 #ifdef CONFIG_PM 3997 .suspend = mpi3mr_suspend, 3998 .resume = mpi3mr_resume, 3999 #endif 4000 }; 4001 4002 static int __init mpi3mr_init(void) 4003 { 4004 int ret_val; 4005 4006 pr_info("Loading %s version %s\n", MPI3MR_DRIVER_NAME, 4007 MPI3MR_DRIVER_VERSION); 4008 4009 ret_val = pci_register_driver(&mpi3mr_pci_driver); 4010 4011 return ret_val; 4012 } 4013 4014 static void __exit mpi3mr_exit(void) 4015 { 4016 if (warn_non_secure_ctlr) 4017 pr_warn( 4018 "Unloading %s version %s while managing a non secure controller\n", 4019 MPI3MR_DRIVER_NAME, MPI3MR_DRIVER_VERSION); 4020 else 4021 pr_info("Unloading %s version %s\n", MPI3MR_DRIVER_NAME, 4022 MPI3MR_DRIVER_VERSION); 4023 4024 pci_unregister_driver(&mpi3mr_pci_driver); 4025 } 4026 4027 module_init(mpi3mr_init); 4028 module_exit(mpi3mr_exit); 4029