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 unsigned char prot_type = scsi_get_prot_type(scmd); 1967 1968 switch (prot_op) { 1969 case SCSI_PROT_NORMAL: 1970 return; 1971 case SCSI_PROT_READ_STRIP: 1972 eedp_flags = MPI3_EEDPFLAGS_EEDP_OP_CHECK_REMOVE; 1973 break; 1974 case SCSI_PROT_WRITE_INSERT: 1975 eedp_flags = MPI3_EEDPFLAGS_EEDP_OP_INSERT; 1976 break; 1977 case SCSI_PROT_READ_INSERT: 1978 eedp_flags = MPI3_EEDPFLAGS_EEDP_OP_INSERT; 1979 scsiio_req->msg_flags |= MPI3_SCSIIO_MSGFLAGS_METASGL_VALID; 1980 break; 1981 case SCSI_PROT_WRITE_STRIP: 1982 eedp_flags = MPI3_EEDPFLAGS_EEDP_OP_CHECK_REMOVE; 1983 scsiio_req->msg_flags |= MPI3_SCSIIO_MSGFLAGS_METASGL_VALID; 1984 break; 1985 case SCSI_PROT_READ_PASS: 1986 eedp_flags = MPI3_EEDPFLAGS_EEDP_OP_CHECK | 1987 MPI3_EEDPFLAGS_CHK_REF_TAG | MPI3_EEDPFLAGS_CHK_APP_TAG | 1988 MPI3_EEDPFLAGS_CHK_GUARD; 1989 scsiio_req->msg_flags |= MPI3_SCSIIO_MSGFLAGS_METASGL_VALID; 1990 break; 1991 case SCSI_PROT_WRITE_PASS: 1992 if (scsi_host_get_guard(scmd->device->host) 1993 & SHOST_DIX_GUARD_IP) { 1994 eedp_flags = MPI3_EEDPFLAGS_EEDP_OP_CHECK_REGEN | 1995 MPI3_EEDPFLAGS_CHK_APP_TAG | 1996 MPI3_EEDPFLAGS_CHK_GUARD | 1997 MPI3_EEDPFLAGS_INCR_PRI_REF_TAG; 1998 scsiio_req->sgl[0].eedp.application_tag_translation_mask = 1999 0xffff; 2000 } else { 2001 eedp_flags = MPI3_EEDPFLAGS_EEDP_OP_CHECK | 2002 MPI3_EEDPFLAGS_CHK_REF_TAG | 2003 MPI3_EEDPFLAGS_CHK_APP_TAG | 2004 MPI3_EEDPFLAGS_CHK_GUARD; 2005 } 2006 scsiio_req->msg_flags |= MPI3_SCSIIO_MSGFLAGS_METASGL_VALID; 2007 break; 2008 default: 2009 return; 2010 } 2011 2012 if (scsi_host_get_guard(scmd->device->host) & SHOST_DIX_GUARD_IP) 2013 eedp_flags |= MPI3_EEDPFLAGS_HOST_GUARD_IP_CHKSUM; 2014 2015 switch (prot_type) { 2016 case SCSI_PROT_DIF_TYPE0: 2017 eedp_flags |= MPI3_EEDPFLAGS_INCR_PRI_REF_TAG; 2018 scsiio_req->cdb.eedp32.primary_reference_tag = 2019 cpu_to_be32(t10_pi_ref_tag(scsi_cmd_to_rq(scmd))); 2020 break; 2021 case SCSI_PROT_DIF_TYPE1: 2022 case SCSI_PROT_DIF_TYPE2: 2023 eedp_flags |= MPI3_EEDPFLAGS_INCR_PRI_REF_TAG | 2024 MPI3_EEDPFLAGS_ESC_MODE_APPTAG_DISABLE | 2025 MPI3_EEDPFLAGS_CHK_GUARD; 2026 scsiio_req->cdb.eedp32.primary_reference_tag = 2027 cpu_to_be32(t10_pi_ref_tag(scsi_cmd_to_rq(scmd))); 2028 break; 2029 case SCSI_PROT_DIF_TYPE3: 2030 eedp_flags |= MPI3_EEDPFLAGS_CHK_GUARD | 2031 MPI3_EEDPFLAGS_ESC_MODE_APPTAG_DISABLE; 2032 break; 2033 2034 default: 2035 scsiio_req->msg_flags &= ~(MPI3_SCSIIO_MSGFLAGS_METASGL_VALID); 2036 return; 2037 } 2038 2039 switch (scmd->device->sector_size) { 2040 case 512: 2041 scsiio_req->sgl[0].eedp.user_data_size = MPI3_EEDP_UDS_512; 2042 break; 2043 case 520: 2044 scsiio_req->sgl[0].eedp.user_data_size = MPI3_EEDP_UDS_520; 2045 break; 2046 case 4080: 2047 scsiio_req->sgl[0].eedp.user_data_size = MPI3_EEDP_UDS_4080; 2048 break; 2049 case 4088: 2050 scsiio_req->sgl[0].eedp.user_data_size = MPI3_EEDP_UDS_4088; 2051 break; 2052 case 4096: 2053 scsiio_req->sgl[0].eedp.user_data_size = MPI3_EEDP_UDS_4096; 2054 break; 2055 case 4104: 2056 scsiio_req->sgl[0].eedp.user_data_size = MPI3_EEDP_UDS_4104; 2057 break; 2058 case 4160: 2059 scsiio_req->sgl[0].eedp.user_data_size = MPI3_EEDP_UDS_4160; 2060 break; 2061 default: 2062 break; 2063 } 2064 2065 scsiio_req->sgl[0].eedp.eedp_flags = cpu_to_le16(eedp_flags); 2066 scsiio_req->sgl[0].eedp.flags = MPI3_SGE_FLAGS_ELEMENT_TYPE_EXTENDED; 2067 } 2068 2069 /** 2070 * mpi3mr_build_sense_buffer - Map sense information 2071 * @desc: Sense type 2072 * @buf: Sense buffer to populate 2073 * @key: Sense key 2074 * @asc: Additional sense code 2075 * @ascq: Additional sense code qualifier 2076 * 2077 * Maps the given sense information into either descriptor or 2078 * fixed format sense data. 2079 * 2080 * Return: Nothing 2081 */ 2082 static inline void mpi3mr_build_sense_buffer(int desc, u8 *buf, u8 key, 2083 u8 asc, u8 ascq) 2084 { 2085 if (desc) { 2086 buf[0] = 0x72; /* descriptor, current */ 2087 buf[1] = key; 2088 buf[2] = asc; 2089 buf[3] = ascq; 2090 buf[7] = 0; 2091 } else { 2092 buf[0] = 0x70; /* fixed, current */ 2093 buf[2] = key; 2094 buf[7] = 0xa; 2095 buf[12] = asc; 2096 buf[13] = ascq; 2097 } 2098 } 2099 2100 /** 2101 * mpi3mr_map_eedp_error - Map EEDP errors from IOC status 2102 * @scmd: SCSI command reference 2103 * @ioc_status: status of MPI3 request 2104 * 2105 * Maps the EEDP error status of the SCSI IO request to sense 2106 * data. 2107 * 2108 * Return: Nothing 2109 */ 2110 static void mpi3mr_map_eedp_error(struct scsi_cmnd *scmd, 2111 u16 ioc_status) 2112 { 2113 u8 ascq = 0; 2114 2115 switch (ioc_status) { 2116 case MPI3_IOCSTATUS_EEDP_GUARD_ERROR: 2117 ascq = 0x01; 2118 break; 2119 case MPI3_IOCSTATUS_EEDP_APP_TAG_ERROR: 2120 ascq = 0x02; 2121 break; 2122 case MPI3_IOCSTATUS_EEDP_REF_TAG_ERROR: 2123 ascq = 0x03; 2124 break; 2125 default: 2126 ascq = 0x00; 2127 break; 2128 } 2129 2130 mpi3mr_build_sense_buffer(0, scmd->sense_buffer, ILLEGAL_REQUEST, 2131 0x10, ascq); 2132 scmd->result = (DID_ABORT << 16) | SAM_STAT_CHECK_CONDITION; 2133 } 2134 2135 /** 2136 * mpi3mr_process_op_reply_desc - reply descriptor handler 2137 * @mrioc: Adapter instance reference 2138 * @reply_desc: Operational reply descriptor 2139 * @reply_dma: place holder for reply DMA address 2140 * @qidx: Operational queue index 2141 * 2142 * Process the operational reply descriptor and identifies the 2143 * descriptor type. Based on the descriptor map the MPI3 request 2144 * status to a SCSI command status and calls scsi_done call 2145 * back. 2146 * 2147 * Return: Nothing 2148 */ 2149 void mpi3mr_process_op_reply_desc(struct mpi3mr_ioc *mrioc, 2150 struct mpi3_default_reply_descriptor *reply_desc, u64 *reply_dma, u16 qidx) 2151 { 2152 u16 reply_desc_type, host_tag = 0; 2153 u16 ioc_status = MPI3_IOCSTATUS_SUCCESS; 2154 u32 ioc_loginfo = 0; 2155 struct mpi3_status_reply_descriptor *status_desc = NULL; 2156 struct mpi3_address_reply_descriptor *addr_desc = NULL; 2157 struct mpi3_success_reply_descriptor *success_desc = NULL; 2158 struct mpi3_scsi_io_reply *scsi_reply = NULL; 2159 struct scsi_cmnd *scmd = NULL; 2160 struct scmd_priv *priv = NULL; 2161 u8 *sense_buf = NULL; 2162 u8 scsi_state = 0, scsi_status = 0, sense_state = 0; 2163 u32 xfer_count = 0, sense_count = 0, resp_data = 0; 2164 u16 dev_handle = 0xFFFF; 2165 struct scsi_sense_hdr sshdr; 2166 2167 *reply_dma = 0; 2168 reply_desc_type = le16_to_cpu(reply_desc->reply_flags) & 2169 MPI3_REPLY_DESCRIPT_FLAGS_TYPE_MASK; 2170 switch (reply_desc_type) { 2171 case MPI3_REPLY_DESCRIPT_FLAGS_TYPE_STATUS: 2172 status_desc = (struct mpi3_status_reply_descriptor *)reply_desc; 2173 host_tag = le16_to_cpu(status_desc->host_tag); 2174 ioc_status = le16_to_cpu(status_desc->ioc_status); 2175 if (ioc_status & 2176 MPI3_REPLY_DESCRIPT_STATUS_IOCSTATUS_LOGINFOAVAIL) 2177 ioc_loginfo = le32_to_cpu(status_desc->ioc_log_info); 2178 ioc_status &= MPI3_REPLY_DESCRIPT_STATUS_IOCSTATUS_STATUS_MASK; 2179 break; 2180 case MPI3_REPLY_DESCRIPT_FLAGS_TYPE_ADDRESS_REPLY: 2181 addr_desc = (struct mpi3_address_reply_descriptor *)reply_desc; 2182 *reply_dma = le64_to_cpu(addr_desc->reply_frame_address); 2183 scsi_reply = mpi3mr_get_reply_virt_addr(mrioc, 2184 *reply_dma); 2185 if (!scsi_reply) { 2186 panic("%s: scsi_reply is NULL, this shouldn't happen\n", 2187 mrioc->name); 2188 goto out; 2189 } 2190 host_tag = le16_to_cpu(scsi_reply->host_tag); 2191 ioc_status = le16_to_cpu(scsi_reply->ioc_status); 2192 scsi_status = scsi_reply->scsi_status; 2193 scsi_state = scsi_reply->scsi_state; 2194 dev_handle = le16_to_cpu(scsi_reply->dev_handle); 2195 sense_state = (scsi_state & MPI3_SCSI_STATE_SENSE_MASK); 2196 xfer_count = le32_to_cpu(scsi_reply->transfer_count); 2197 sense_count = le32_to_cpu(scsi_reply->sense_count); 2198 resp_data = le32_to_cpu(scsi_reply->response_data); 2199 sense_buf = mpi3mr_get_sensebuf_virt_addr(mrioc, 2200 le64_to_cpu(scsi_reply->sense_data_buffer_address)); 2201 if (ioc_status & 2202 MPI3_REPLY_DESCRIPT_STATUS_IOCSTATUS_LOGINFOAVAIL) 2203 ioc_loginfo = le32_to_cpu(scsi_reply->ioc_log_info); 2204 ioc_status &= MPI3_REPLY_DESCRIPT_STATUS_IOCSTATUS_STATUS_MASK; 2205 if (sense_state == MPI3_SCSI_STATE_SENSE_BUFF_Q_EMPTY) 2206 panic("%s: Ran out of sense buffers\n", mrioc->name); 2207 break; 2208 case MPI3_REPLY_DESCRIPT_FLAGS_TYPE_SUCCESS: 2209 success_desc = (struct mpi3_success_reply_descriptor *)reply_desc; 2210 host_tag = le16_to_cpu(success_desc->host_tag); 2211 break; 2212 default: 2213 break; 2214 } 2215 scmd = mpi3mr_scmd_from_host_tag(mrioc, host_tag, qidx); 2216 if (!scmd) { 2217 panic("%s: Cannot Identify scmd for host_tag 0x%x\n", 2218 mrioc->name, host_tag); 2219 goto out; 2220 } 2221 priv = scsi_cmd_priv(scmd); 2222 if (success_desc) { 2223 scmd->result = DID_OK << 16; 2224 goto out_success; 2225 } 2226 if (ioc_status == MPI3_IOCSTATUS_SCSI_DATA_UNDERRUN && 2227 xfer_count == 0 && (scsi_status == MPI3_SCSI_STATUS_BUSY || 2228 scsi_status == MPI3_SCSI_STATUS_RESERVATION_CONFLICT || 2229 scsi_status == MPI3_SCSI_STATUS_TASK_SET_FULL)) 2230 ioc_status = MPI3_IOCSTATUS_SUCCESS; 2231 2232 if ((sense_state == MPI3_SCSI_STATE_SENSE_VALID) && sense_count && 2233 sense_buf) { 2234 u32 sz = min_t(u32, SCSI_SENSE_BUFFERSIZE, sense_count); 2235 2236 memcpy(scmd->sense_buffer, sense_buf, sz); 2237 } 2238 2239 switch (ioc_status) { 2240 case MPI3_IOCSTATUS_BUSY: 2241 case MPI3_IOCSTATUS_INSUFFICIENT_RESOURCES: 2242 scmd->result = SAM_STAT_BUSY; 2243 break; 2244 case MPI3_IOCSTATUS_SCSI_DEVICE_NOT_THERE: 2245 scmd->result = DID_NO_CONNECT << 16; 2246 break; 2247 case MPI3_IOCSTATUS_SCSI_IOC_TERMINATED: 2248 scmd->result = DID_SOFT_ERROR << 16; 2249 break; 2250 case MPI3_IOCSTATUS_SCSI_TASK_TERMINATED: 2251 case MPI3_IOCSTATUS_SCSI_EXT_TERMINATED: 2252 scmd->result = DID_RESET << 16; 2253 break; 2254 case MPI3_IOCSTATUS_SCSI_RESIDUAL_MISMATCH: 2255 if ((xfer_count == 0) || (scmd->underflow > xfer_count)) 2256 scmd->result = DID_SOFT_ERROR << 16; 2257 else 2258 scmd->result = (DID_OK << 16) | scsi_status; 2259 break; 2260 case MPI3_IOCSTATUS_SCSI_DATA_UNDERRUN: 2261 scmd->result = (DID_OK << 16) | scsi_status; 2262 if (sense_state == MPI3_SCSI_STATE_SENSE_VALID) 2263 break; 2264 if (xfer_count < scmd->underflow) { 2265 if (scsi_status == SAM_STAT_BUSY) 2266 scmd->result = SAM_STAT_BUSY; 2267 else 2268 scmd->result = DID_SOFT_ERROR << 16; 2269 } else if ((scsi_state & (MPI3_SCSI_STATE_NO_SCSI_STATUS)) || 2270 (sense_state != MPI3_SCSI_STATE_SENSE_NOT_AVAILABLE)) 2271 scmd->result = DID_SOFT_ERROR << 16; 2272 else if (scsi_state & MPI3_SCSI_STATE_TERMINATED) 2273 scmd->result = DID_RESET << 16; 2274 break; 2275 case MPI3_IOCSTATUS_SCSI_DATA_OVERRUN: 2276 scsi_set_resid(scmd, 0); 2277 fallthrough; 2278 case MPI3_IOCSTATUS_SCSI_RECOVERED_ERROR: 2279 case MPI3_IOCSTATUS_SUCCESS: 2280 scmd->result = (DID_OK << 16) | scsi_status; 2281 if ((scsi_state & (MPI3_SCSI_STATE_NO_SCSI_STATUS)) || 2282 (sense_state == MPI3_SCSI_STATE_SENSE_FAILED) || 2283 (sense_state == MPI3_SCSI_STATE_SENSE_BUFF_Q_EMPTY)) 2284 scmd->result = DID_SOFT_ERROR << 16; 2285 else if (scsi_state & MPI3_SCSI_STATE_TERMINATED) 2286 scmd->result = DID_RESET << 16; 2287 break; 2288 case MPI3_IOCSTATUS_EEDP_GUARD_ERROR: 2289 case MPI3_IOCSTATUS_EEDP_REF_TAG_ERROR: 2290 case MPI3_IOCSTATUS_EEDP_APP_TAG_ERROR: 2291 mpi3mr_map_eedp_error(scmd, ioc_status); 2292 break; 2293 case MPI3_IOCSTATUS_SCSI_PROTOCOL_ERROR: 2294 case MPI3_IOCSTATUS_INVALID_FUNCTION: 2295 case MPI3_IOCSTATUS_INVALID_SGL: 2296 case MPI3_IOCSTATUS_INTERNAL_ERROR: 2297 case MPI3_IOCSTATUS_INVALID_FIELD: 2298 case MPI3_IOCSTATUS_INVALID_STATE: 2299 case MPI3_IOCSTATUS_SCSI_IO_DATA_ERROR: 2300 case MPI3_IOCSTATUS_SCSI_TASK_MGMT_FAILED: 2301 case MPI3_IOCSTATUS_INSUFFICIENT_POWER: 2302 default: 2303 scmd->result = DID_SOFT_ERROR << 16; 2304 break; 2305 } 2306 2307 if (scmd->result != (DID_OK << 16) && (scmd->cmnd[0] != ATA_12) && 2308 (scmd->cmnd[0] != ATA_16)) { 2309 ioc_info(mrioc, "%s :scmd->result 0x%x\n", __func__, 2310 scmd->result); 2311 scsi_print_command(scmd); 2312 ioc_info(mrioc, 2313 "%s :Command issued to handle 0x%02x returned with error 0x%04x loginfo 0x%08x, qid %d\n", 2314 __func__, dev_handle, ioc_status, ioc_loginfo, 2315 priv->req_q_idx + 1); 2316 ioc_info(mrioc, 2317 " host_tag %d scsi_state 0x%02x scsi_status 0x%02x, xfer_cnt %d resp_data 0x%x\n", 2318 host_tag, scsi_state, scsi_status, xfer_count, resp_data); 2319 if (sense_buf) { 2320 scsi_normalize_sense(sense_buf, sense_count, &sshdr); 2321 ioc_info(mrioc, 2322 "%s :sense_count 0x%x, sense_key 0x%x ASC 0x%x, ASCQ 0x%x\n", 2323 __func__, sense_count, sshdr.sense_key, 2324 sshdr.asc, sshdr.ascq); 2325 } 2326 } 2327 out_success: 2328 if (priv->meta_sg_valid) { 2329 dma_unmap_sg(&mrioc->pdev->dev, scsi_prot_sglist(scmd), 2330 scsi_prot_sg_count(scmd), scmd->sc_data_direction); 2331 } 2332 mpi3mr_clear_scmd_priv(mrioc, scmd); 2333 scsi_dma_unmap(scmd); 2334 scmd->scsi_done(scmd); 2335 out: 2336 if (sense_buf) 2337 mpi3mr_repost_sense_buf(mrioc, 2338 le64_to_cpu(scsi_reply->sense_data_buffer_address)); 2339 } 2340 2341 /** 2342 * mpi3mr_get_chain_idx - get free chain buffer index 2343 * @mrioc: Adapter instance reference 2344 * 2345 * Try to get a free chain buffer index from the free pool. 2346 * 2347 * Return: -1 on failure or the free chain buffer index 2348 */ 2349 static int mpi3mr_get_chain_idx(struct mpi3mr_ioc *mrioc) 2350 { 2351 u8 retry_count = 5; 2352 int cmd_idx = -1; 2353 2354 do { 2355 spin_lock(&mrioc->chain_buf_lock); 2356 cmd_idx = find_first_zero_bit(mrioc->chain_bitmap, 2357 mrioc->chain_buf_count); 2358 if (cmd_idx < mrioc->chain_buf_count) { 2359 set_bit(cmd_idx, mrioc->chain_bitmap); 2360 spin_unlock(&mrioc->chain_buf_lock); 2361 break; 2362 } 2363 spin_unlock(&mrioc->chain_buf_lock); 2364 cmd_idx = -1; 2365 } while (retry_count--); 2366 return cmd_idx; 2367 } 2368 2369 /** 2370 * mpi3mr_prepare_sg_scmd - build scatter gather list 2371 * @mrioc: Adapter instance reference 2372 * @scmd: SCSI command reference 2373 * @scsiio_req: MPI3 SCSI IO request 2374 * 2375 * This function maps SCSI command's data and protection SGEs to 2376 * MPI request SGEs. If required additional 4K chain buffer is 2377 * used to send the SGEs. 2378 * 2379 * Return: 0 on success, -ENOMEM on dma_map_sg failure 2380 */ 2381 static int mpi3mr_prepare_sg_scmd(struct mpi3mr_ioc *mrioc, 2382 struct scsi_cmnd *scmd, struct mpi3_scsi_io_request *scsiio_req) 2383 { 2384 dma_addr_t chain_dma; 2385 struct scatterlist *sg_scmd; 2386 void *sg_local, *chain; 2387 u32 chain_length; 2388 int sges_left, chain_idx; 2389 u32 sges_in_segment; 2390 u8 simple_sgl_flags; 2391 u8 simple_sgl_flags_last; 2392 u8 last_chain_sgl_flags; 2393 struct chain_element *chain_req; 2394 struct scmd_priv *priv = NULL; 2395 u32 meta_sg = le32_to_cpu(scsiio_req->flags) & 2396 MPI3_SCSIIO_FLAGS_DMAOPERATION_HOST_PI; 2397 2398 priv = scsi_cmd_priv(scmd); 2399 2400 simple_sgl_flags = MPI3_SGE_FLAGS_ELEMENT_TYPE_SIMPLE | 2401 MPI3_SGE_FLAGS_DLAS_SYSTEM; 2402 simple_sgl_flags_last = simple_sgl_flags | 2403 MPI3_SGE_FLAGS_END_OF_LIST; 2404 last_chain_sgl_flags = MPI3_SGE_FLAGS_ELEMENT_TYPE_LAST_CHAIN | 2405 MPI3_SGE_FLAGS_DLAS_SYSTEM; 2406 2407 if (meta_sg) 2408 sg_local = &scsiio_req->sgl[MPI3_SCSIIO_METASGL_INDEX]; 2409 else 2410 sg_local = &scsiio_req->sgl; 2411 2412 if (!scsiio_req->data_length && !meta_sg) { 2413 mpi3mr_build_zero_len_sge(sg_local); 2414 return 0; 2415 } 2416 2417 if (meta_sg) { 2418 sg_scmd = scsi_prot_sglist(scmd); 2419 sges_left = dma_map_sg(&mrioc->pdev->dev, 2420 scsi_prot_sglist(scmd), 2421 scsi_prot_sg_count(scmd), 2422 scmd->sc_data_direction); 2423 priv->meta_sg_valid = 1; /* To unmap meta sg DMA */ 2424 } else { 2425 sg_scmd = scsi_sglist(scmd); 2426 sges_left = scsi_dma_map(scmd); 2427 } 2428 2429 if (sges_left < 0) { 2430 sdev_printk(KERN_ERR, scmd->device, 2431 "scsi_dma_map failed: request for %d bytes!\n", 2432 scsi_bufflen(scmd)); 2433 return -ENOMEM; 2434 } 2435 if (sges_left > MPI3MR_SG_DEPTH) { 2436 sdev_printk(KERN_ERR, scmd->device, 2437 "scsi_dma_map returned unsupported sge count %d!\n", 2438 sges_left); 2439 return -ENOMEM; 2440 } 2441 2442 sges_in_segment = (mrioc->facts.op_req_sz - 2443 offsetof(struct mpi3_scsi_io_request, sgl)) / sizeof(struct mpi3_sge_common); 2444 2445 if (scsiio_req->sgl[0].eedp.flags == 2446 MPI3_SGE_FLAGS_ELEMENT_TYPE_EXTENDED && !meta_sg) { 2447 sg_local += sizeof(struct mpi3_sge_common); 2448 sges_in_segment--; 2449 /* Reserve 1st segment (scsiio_req->sgl[0]) for eedp */ 2450 } 2451 2452 if (scsiio_req->msg_flags == 2453 MPI3_SCSIIO_MSGFLAGS_METASGL_VALID && !meta_sg) { 2454 sges_in_segment--; 2455 /* Reserve last segment (scsiio_req->sgl[3]) for meta sg */ 2456 } 2457 2458 if (meta_sg) 2459 sges_in_segment = 1; 2460 2461 if (sges_left <= sges_in_segment) 2462 goto fill_in_last_segment; 2463 2464 /* fill in main message segment when there is a chain following */ 2465 while (sges_in_segment > 1) { 2466 mpi3mr_add_sg_single(sg_local, simple_sgl_flags, 2467 sg_dma_len(sg_scmd), sg_dma_address(sg_scmd)); 2468 sg_scmd = sg_next(sg_scmd); 2469 sg_local += sizeof(struct mpi3_sge_common); 2470 sges_left--; 2471 sges_in_segment--; 2472 } 2473 2474 chain_idx = mpi3mr_get_chain_idx(mrioc); 2475 if (chain_idx < 0) 2476 return -1; 2477 chain_req = &mrioc->chain_sgl_list[chain_idx]; 2478 if (meta_sg) 2479 priv->meta_chain_idx = chain_idx; 2480 else 2481 priv->chain_idx = chain_idx; 2482 2483 chain = chain_req->addr; 2484 chain_dma = chain_req->dma_addr; 2485 sges_in_segment = sges_left; 2486 chain_length = sges_in_segment * sizeof(struct mpi3_sge_common); 2487 2488 mpi3mr_add_sg_single(sg_local, last_chain_sgl_flags, 2489 chain_length, chain_dma); 2490 2491 sg_local = chain; 2492 2493 fill_in_last_segment: 2494 while (sges_left > 0) { 2495 if (sges_left == 1) 2496 mpi3mr_add_sg_single(sg_local, 2497 simple_sgl_flags_last, sg_dma_len(sg_scmd), 2498 sg_dma_address(sg_scmd)); 2499 else 2500 mpi3mr_add_sg_single(sg_local, simple_sgl_flags, 2501 sg_dma_len(sg_scmd), sg_dma_address(sg_scmd)); 2502 sg_scmd = sg_next(sg_scmd); 2503 sg_local += sizeof(struct mpi3_sge_common); 2504 sges_left--; 2505 } 2506 2507 return 0; 2508 } 2509 2510 /** 2511 * mpi3mr_build_sg_scmd - build scatter gather list for SCSI IO 2512 * @mrioc: Adapter instance reference 2513 * @scmd: SCSI command reference 2514 * @scsiio_req: MPI3 SCSI IO request 2515 * 2516 * This function calls mpi3mr_prepare_sg_scmd for constructing 2517 * both data SGEs and protection information SGEs in the MPI 2518 * format from the SCSI Command as appropriate . 2519 * 2520 * Return: return value of mpi3mr_prepare_sg_scmd. 2521 */ 2522 static int mpi3mr_build_sg_scmd(struct mpi3mr_ioc *mrioc, 2523 struct scsi_cmnd *scmd, struct mpi3_scsi_io_request *scsiio_req) 2524 { 2525 int ret; 2526 2527 ret = mpi3mr_prepare_sg_scmd(mrioc, scmd, scsiio_req); 2528 if (ret) 2529 return ret; 2530 2531 if (scsiio_req->msg_flags == MPI3_SCSIIO_MSGFLAGS_METASGL_VALID) { 2532 /* There is a valid meta sg */ 2533 scsiio_req->flags |= 2534 cpu_to_le32(MPI3_SCSIIO_FLAGS_DMAOPERATION_HOST_PI); 2535 ret = mpi3mr_prepare_sg_scmd(mrioc, scmd, scsiio_req); 2536 } 2537 2538 return ret; 2539 } 2540 2541 /** 2542 * mpi3mr_print_response_code - print TM response as a string 2543 * @mrioc: Adapter instance reference 2544 * @resp_code: TM response code 2545 * 2546 * Print TM response code as a readable string. 2547 * 2548 * Return: Nothing. 2549 */ 2550 static void mpi3mr_print_response_code(struct mpi3mr_ioc *mrioc, u8 resp_code) 2551 { 2552 char *desc; 2553 2554 switch (resp_code) { 2555 case MPI3MR_RSP_TM_COMPLETE: 2556 desc = "task management request completed"; 2557 break; 2558 case MPI3MR_RSP_INVALID_FRAME: 2559 desc = "invalid frame"; 2560 break; 2561 case MPI3MR_RSP_TM_NOT_SUPPORTED: 2562 desc = "task management request not supported"; 2563 break; 2564 case MPI3MR_RSP_TM_FAILED: 2565 desc = "task management request failed"; 2566 break; 2567 case MPI3MR_RSP_TM_SUCCEEDED: 2568 desc = "task management request succeeded"; 2569 break; 2570 case MPI3MR_RSP_TM_INVALID_LUN: 2571 desc = "invalid lun"; 2572 break; 2573 case MPI3MR_RSP_TM_OVERLAPPED_TAG: 2574 desc = "overlapped tag attempted"; 2575 break; 2576 case MPI3MR_RSP_IO_QUEUED_ON_IOC: 2577 desc = "task queued, however not sent to target"; 2578 break; 2579 default: 2580 desc = "unknown"; 2581 break; 2582 } 2583 ioc_info(mrioc, "%s :response_code(0x%01x): %s\n", __func__, 2584 resp_code, desc); 2585 } 2586 2587 /** 2588 * mpi3mr_issue_tm - Issue Task Management request 2589 * @mrioc: Adapter instance reference 2590 * @tm_type: Task Management type 2591 * @handle: Device handle 2592 * @lun: lun ID 2593 * @htag: Host tag of the TM request 2594 * @drv_cmd: Internal command tracker 2595 * @resp_code: Response code place holder 2596 * @cmd_priv: SCSI command private data 2597 * 2598 * Issues a Task Management Request to the controller for a 2599 * specified target, lun and command and wait for its completion 2600 * and check TM response. Recover the TM if it timed out by 2601 * issuing controller reset. 2602 * 2603 * Return: 0 on success, non-zero on errors 2604 */ 2605 static int mpi3mr_issue_tm(struct mpi3mr_ioc *mrioc, u8 tm_type, 2606 u16 handle, uint lun, u16 htag, ulong timeout, 2607 struct mpi3mr_drv_cmd *drv_cmd, 2608 u8 *resp_code, struct scmd_priv *cmd_priv) 2609 { 2610 struct mpi3_scsi_task_mgmt_request tm_req; 2611 struct mpi3_scsi_task_mgmt_reply *tm_reply = NULL; 2612 int retval = 0; 2613 struct mpi3mr_tgt_dev *tgtdev = NULL; 2614 struct mpi3mr_stgt_priv_data *scsi_tgt_priv_data = NULL; 2615 struct op_req_qinfo *op_req_q = NULL; 2616 2617 ioc_info(mrioc, "%s :Issue TM: TM type (0x%x) for devhandle 0x%04x\n", 2618 __func__, tm_type, handle); 2619 if (mrioc->unrecoverable) { 2620 retval = -1; 2621 ioc_err(mrioc, "%s :Issue TM: Unrecoverable controller\n", 2622 __func__); 2623 goto out; 2624 } 2625 2626 memset(&tm_req, 0, sizeof(tm_req)); 2627 mutex_lock(&drv_cmd->mutex); 2628 if (drv_cmd->state & MPI3MR_CMD_PENDING) { 2629 retval = -1; 2630 ioc_err(mrioc, "%s :Issue TM: Command is in use\n", __func__); 2631 mutex_unlock(&drv_cmd->mutex); 2632 goto out; 2633 } 2634 if (mrioc->reset_in_progress) { 2635 retval = -1; 2636 ioc_err(mrioc, "%s :Issue TM: Reset in progress\n", __func__); 2637 mutex_unlock(&drv_cmd->mutex); 2638 goto out; 2639 } 2640 2641 drv_cmd->state = MPI3MR_CMD_PENDING; 2642 drv_cmd->is_waiting = 1; 2643 drv_cmd->callback = NULL; 2644 tm_req.dev_handle = cpu_to_le16(handle); 2645 tm_req.task_type = tm_type; 2646 tm_req.host_tag = cpu_to_le16(htag); 2647 2648 int_to_scsilun(lun, (struct scsi_lun *)tm_req.lun); 2649 tm_req.function = MPI3_FUNCTION_SCSI_TASK_MGMT; 2650 2651 tgtdev = mpi3mr_get_tgtdev_by_handle(mrioc, handle); 2652 if (tgtdev && tgtdev->starget && tgtdev->starget->hostdata) { 2653 scsi_tgt_priv_data = (struct mpi3mr_stgt_priv_data *) 2654 tgtdev->starget->hostdata; 2655 atomic_inc(&scsi_tgt_priv_data->block_io); 2656 } 2657 if (cmd_priv) { 2658 op_req_q = &mrioc->req_qinfo[cmd_priv->req_q_idx]; 2659 tm_req.task_host_tag = cpu_to_le16(cmd_priv->host_tag); 2660 tm_req.task_request_queue_id = cpu_to_le16(op_req_q->qid); 2661 } 2662 if (tgtdev && (tgtdev->dev_type == MPI3_DEVICE_DEVFORM_PCIE)) { 2663 if (cmd_priv && tgtdev->dev_spec.pcie_inf.abort_to) 2664 timeout = tgtdev->dev_spec.pcie_inf.abort_to; 2665 else if (!cmd_priv && tgtdev->dev_spec.pcie_inf.reset_to) 2666 timeout = tgtdev->dev_spec.pcie_inf.reset_to; 2667 } 2668 2669 init_completion(&drv_cmd->done); 2670 retval = mpi3mr_admin_request_post(mrioc, &tm_req, sizeof(tm_req), 1); 2671 if (retval) { 2672 ioc_err(mrioc, "%s :Issue TM: Admin Post failed\n", __func__); 2673 goto out_unlock; 2674 } 2675 wait_for_completion_timeout(&drv_cmd->done, (timeout * HZ)); 2676 2677 if (!(drv_cmd->state & MPI3MR_CMD_COMPLETE)) { 2678 ioc_err(mrioc, "%s :Issue TM: command timed out\n", __func__); 2679 drv_cmd->is_waiting = 0; 2680 retval = -1; 2681 mpi3mr_soft_reset_handler(mrioc, 2682 MPI3MR_RESET_FROM_TM_TIMEOUT, 1); 2683 goto out_unlock; 2684 } 2685 2686 if (drv_cmd->state & MPI3MR_CMD_REPLY_VALID) 2687 tm_reply = (struct mpi3_scsi_task_mgmt_reply *)drv_cmd->reply; 2688 2689 if (drv_cmd->ioc_status != MPI3_IOCSTATUS_SUCCESS) { 2690 ioc_err(mrioc, 2691 "%s :Issue TM: handle(0x%04x) Failed ioc_status(0x%04x) Loginfo(0x%08x)\n", 2692 __func__, handle, drv_cmd->ioc_status, 2693 drv_cmd->ioc_loginfo); 2694 retval = -1; 2695 goto out_unlock; 2696 } 2697 2698 if (!tm_reply) { 2699 ioc_err(mrioc, "%s :Issue TM: No TM Reply message\n", __func__); 2700 retval = -1; 2701 goto out_unlock; 2702 } 2703 2704 *resp_code = le32_to_cpu(tm_reply->response_data) & 2705 MPI3MR_RI_MASK_RESPCODE; 2706 switch (*resp_code) { 2707 case MPI3MR_RSP_TM_SUCCEEDED: 2708 case MPI3MR_RSP_TM_COMPLETE: 2709 break; 2710 case MPI3MR_RSP_IO_QUEUED_ON_IOC: 2711 if (tm_type != MPI3_SCSITASKMGMT_TASKTYPE_QUERY_TASK) 2712 retval = -1; 2713 break; 2714 default: 2715 retval = -1; 2716 break; 2717 } 2718 2719 ioc_info(mrioc, 2720 "%s :Issue TM: Completed TM type (0x%x) handle(0x%04x) ", 2721 __func__, tm_type, handle); 2722 ioc_info(mrioc, 2723 "with ioc_status(0x%04x), loginfo(0x%08x), term_count(0x%08x)\n", 2724 drv_cmd->ioc_status, drv_cmd->ioc_loginfo, 2725 le32_to_cpu(tm_reply->termination_count)); 2726 mpi3mr_print_response_code(mrioc, *resp_code); 2727 2728 out_unlock: 2729 drv_cmd->state = MPI3MR_CMD_NOTUSED; 2730 mutex_unlock(&drv_cmd->mutex); 2731 if (scsi_tgt_priv_data) 2732 atomic_dec_if_positive(&scsi_tgt_priv_data->block_io); 2733 if (tgtdev) 2734 mpi3mr_tgtdev_put(tgtdev); 2735 if (!retval) { 2736 /* 2737 * Flush all IRQ handlers by calling synchronize_irq(). 2738 * mpi3mr_ioc_disable_intr() takes care of it. 2739 */ 2740 mpi3mr_ioc_disable_intr(mrioc); 2741 mpi3mr_ioc_enable_intr(mrioc); 2742 } 2743 out: 2744 return retval; 2745 } 2746 2747 /** 2748 * mpi3mr_bios_param - BIOS param callback 2749 * @sdev: SCSI device reference 2750 * @bdev: Block device reference 2751 * @capacity: Capacity in logical sectors 2752 * @params: Parameter array 2753 * 2754 * Just the parameters with heads/secots/cylinders. 2755 * 2756 * Return: 0 always 2757 */ 2758 static int mpi3mr_bios_param(struct scsi_device *sdev, 2759 struct block_device *bdev, sector_t capacity, int params[]) 2760 { 2761 int heads; 2762 int sectors; 2763 sector_t cylinders; 2764 ulong dummy; 2765 2766 heads = 64; 2767 sectors = 32; 2768 2769 dummy = heads * sectors; 2770 cylinders = capacity; 2771 sector_div(cylinders, dummy); 2772 2773 if ((ulong)capacity >= 0x200000) { 2774 heads = 255; 2775 sectors = 63; 2776 dummy = heads * sectors; 2777 cylinders = capacity; 2778 sector_div(cylinders, dummy); 2779 } 2780 2781 params[0] = heads; 2782 params[1] = sectors; 2783 params[2] = cylinders; 2784 return 0; 2785 } 2786 2787 /** 2788 * mpi3mr_map_queues - Map queues callback handler 2789 * @shost: SCSI host reference 2790 * 2791 * Call the blk_mq_pci_map_queues with from which operational 2792 * queue the mapping has to be done 2793 * 2794 * Return: return of blk_mq_pci_map_queues 2795 */ 2796 static int mpi3mr_map_queues(struct Scsi_Host *shost) 2797 { 2798 struct mpi3mr_ioc *mrioc = shost_priv(shost); 2799 2800 return blk_mq_pci_map_queues(&shost->tag_set.map[HCTX_TYPE_DEFAULT], 2801 mrioc->pdev, mrioc->op_reply_q_offset); 2802 } 2803 2804 /** 2805 * mpi3mr_get_fw_pending_ios - Calculate pending I/O count 2806 * @mrioc: Adapter instance reference 2807 * 2808 * Calculate the pending I/Os for the controller and return. 2809 * 2810 * Return: Number of pending I/Os 2811 */ 2812 static inline int mpi3mr_get_fw_pending_ios(struct mpi3mr_ioc *mrioc) 2813 { 2814 u16 i; 2815 uint pend_ios = 0; 2816 2817 for (i = 0; i < mrioc->num_op_reply_q; i++) 2818 pend_ios += atomic_read(&mrioc->op_reply_qinfo[i].pend_ios); 2819 return pend_ios; 2820 } 2821 2822 /** 2823 * mpi3mr_print_pending_host_io - print pending I/Os 2824 * @mrioc: Adapter instance reference 2825 * 2826 * Print number of pending I/Os and each I/O details prior to 2827 * reset for debug purpose. 2828 * 2829 * Return: Nothing 2830 */ 2831 static void mpi3mr_print_pending_host_io(struct mpi3mr_ioc *mrioc) 2832 { 2833 struct Scsi_Host *shost = mrioc->shost; 2834 2835 ioc_info(mrioc, "%s :Pending commands prior to reset: %d\n", 2836 __func__, mpi3mr_get_fw_pending_ios(mrioc)); 2837 blk_mq_tagset_busy_iter(&shost->tag_set, 2838 mpi3mr_print_scmd, (void *)mrioc); 2839 } 2840 2841 /** 2842 * mpi3mr_wait_for_host_io - block for I/Os to complete 2843 * @mrioc: Adapter instance reference 2844 * @timeout: time out in seconds 2845 * Waits for pending I/Os for the given adapter to complete or 2846 * to hit the timeout. 2847 * 2848 * Return: Nothing 2849 */ 2850 void mpi3mr_wait_for_host_io(struct mpi3mr_ioc *mrioc, u32 timeout) 2851 { 2852 enum mpi3mr_iocstate iocstate; 2853 int i = 0; 2854 2855 iocstate = mpi3mr_get_iocstate(mrioc); 2856 if (iocstate != MRIOC_STATE_READY) 2857 return; 2858 2859 if (!mpi3mr_get_fw_pending_ios(mrioc)) 2860 return; 2861 ioc_info(mrioc, 2862 "%s :Waiting for %d seconds prior to reset for %d I/O\n", 2863 __func__, timeout, mpi3mr_get_fw_pending_ios(mrioc)); 2864 2865 for (i = 0; i < timeout; i++) { 2866 if (!mpi3mr_get_fw_pending_ios(mrioc)) 2867 break; 2868 iocstate = mpi3mr_get_iocstate(mrioc); 2869 if (iocstate != MRIOC_STATE_READY) 2870 break; 2871 msleep(1000); 2872 } 2873 2874 ioc_info(mrioc, "%s :Pending I/Os after wait is: %d\n", __func__, 2875 mpi3mr_get_fw_pending_ios(mrioc)); 2876 } 2877 2878 /** 2879 * mpi3mr_eh_host_reset - Host reset error handling callback 2880 * @scmd: SCSI command reference 2881 * 2882 * Issue controller reset if the scmd is for a Physical Device, 2883 * if the scmd is for RAID volume, then wait for 2884 * MPI3MR_RAID_ERRREC_RESET_TIMEOUT and checke whether any 2885 * pending I/Os prior to issuing reset to the controller. 2886 * 2887 * Return: SUCCESS of successful reset else FAILED 2888 */ 2889 static int mpi3mr_eh_host_reset(struct scsi_cmnd *scmd) 2890 { 2891 struct mpi3mr_ioc *mrioc = shost_priv(scmd->device->host); 2892 struct mpi3mr_stgt_priv_data *stgt_priv_data; 2893 struct mpi3mr_sdev_priv_data *sdev_priv_data; 2894 u8 dev_type = MPI3_DEVICE_DEVFORM_VD; 2895 int retval = FAILED, ret; 2896 2897 sdev_priv_data = scmd->device->hostdata; 2898 if (sdev_priv_data && sdev_priv_data->tgt_priv_data) { 2899 stgt_priv_data = sdev_priv_data->tgt_priv_data; 2900 dev_type = stgt_priv_data->dev_type; 2901 } 2902 2903 if (dev_type == MPI3_DEVICE_DEVFORM_VD) { 2904 mpi3mr_wait_for_host_io(mrioc, 2905 MPI3MR_RAID_ERRREC_RESET_TIMEOUT); 2906 if (!mpi3mr_get_fw_pending_ios(mrioc)) { 2907 retval = SUCCESS; 2908 goto out; 2909 } 2910 } 2911 2912 mpi3mr_print_pending_host_io(mrioc); 2913 ret = mpi3mr_soft_reset_handler(mrioc, 2914 MPI3MR_RESET_FROM_EH_HOS, 1); 2915 if (ret) 2916 goto out; 2917 2918 retval = SUCCESS; 2919 out: 2920 sdev_printk(KERN_INFO, scmd->device, 2921 "Host reset is %s for scmd(%p)\n", 2922 ((retval == SUCCESS) ? "SUCCESS" : "FAILED"), scmd); 2923 2924 return retval; 2925 } 2926 2927 /** 2928 * mpi3mr_eh_target_reset - Target reset error handling callback 2929 * @scmd: SCSI command reference 2930 * 2931 * Issue Target reset Task Management and verify the scmd is 2932 * terminated successfully and return status accordingly. 2933 * 2934 * Return: SUCCESS of successful termination of the scmd else 2935 * FAILED 2936 */ 2937 static int mpi3mr_eh_target_reset(struct scsi_cmnd *scmd) 2938 { 2939 struct mpi3mr_ioc *mrioc = shost_priv(scmd->device->host); 2940 struct mpi3mr_stgt_priv_data *stgt_priv_data; 2941 struct mpi3mr_sdev_priv_data *sdev_priv_data; 2942 u16 dev_handle; 2943 u8 resp_code = 0; 2944 int retval = FAILED, ret = 0; 2945 2946 sdev_printk(KERN_INFO, scmd->device, 2947 "Attempting Target Reset! scmd(%p)\n", scmd); 2948 scsi_print_command(scmd); 2949 2950 sdev_priv_data = scmd->device->hostdata; 2951 if (!sdev_priv_data || !sdev_priv_data->tgt_priv_data) { 2952 sdev_printk(KERN_INFO, scmd->device, 2953 "SCSI device is not available\n"); 2954 retval = SUCCESS; 2955 goto out; 2956 } 2957 2958 stgt_priv_data = sdev_priv_data->tgt_priv_data; 2959 dev_handle = stgt_priv_data->dev_handle; 2960 sdev_printk(KERN_INFO, scmd->device, 2961 "Target Reset is issued to handle(0x%04x)\n", 2962 dev_handle); 2963 2964 ret = mpi3mr_issue_tm(mrioc, 2965 MPI3_SCSITASKMGMT_TASKTYPE_TARGET_RESET, dev_handle, 2966 sdev_priv_data->lun_id, MPI3MR_HOSTTAG_BLK_TMS, 2967 MPI3MR_RESETTM_TIMEOUT, &mrioc->host_tm_cmds, &resp_code, NULL); 2968 2969 if (ret) 2970 goto out; 2971 2972 retval = SUCCESS; 2973 out: 2974 sdev_printk(KERN_INFO, scmd->device, 2975 "Target reset is %s for scmd(%p)\n", 2976 ((retval == SUCCESS) ? "SUCCESS" : "FAILED"), scmd); 2977 2978 return retval; 2979 } 2980 2981 /** 2982 * mpi3mr_eh_dev_reset- Device reset error handling callback 2983 * @scmd: SCSI command reference 2984 * 2985 * Issue lun reset Task Management and verify the scmd is 2986 * terminated successfully and return status accordingly. 2987 * 2988 * Return: SUCCESS of successful termination of the scmd else 2989 * FAILED 2990 */ 2991 static int mpi3mr_eh_dev_reset(struct scsi_cmnd *scmd) 2992 { 2993 struct mpi3mr_ioc *mrioc = shost_priv(scmd->device->host); 2994 struct mpi3mr_stgt_priv_data *stgt_priv_data; 2995 struct mpi3mr_sdev_priv_data *sdev_priv_data; 2996 u16 dev_handle; 2997 u8 resp_code = 0; 2998 int retval = FAILED, ret = 0; 2999 3000 sdev_printk(KERN_INFO, scmd->device, 3001 "Attempting Device(lun) Reset! scmd(%p)\n", scmd); 3002 scsi_print_command(scmd); 3003 3004 sdev_priv_data = scmd->device->hostdata; 3005 if (!sdev_priv_data || !sdev_priv_data->tgt_priv_data) { 3006 sdev_printk(KERN_INFO, scmd->device, 3007 "SCSI device is not available\n"); 3008 retval = SUCCESS; 3009 goto out; 3010 } 3011 3012 stgt_priv_data = sdev_priv_data->tgt_priv_data; 3013 dev_handle = stgt_priv_data->dev_handle; 3014 sdev_printk(KERN_INFO, scmd->device, 3015 "Device(lun) Reset is issued to handle(0x%04x)\n", dev_handle); 3016 3017 ret = mpi3mr_issue_tm(mrioc, 3018 MPI3_SCSITASKMGMT_TASKTYPE_LOGICAL_UNIT_RESET, dev_handle, 3019 sdev_priv_data->lun_id, MPI3MR_HOSTTAG_BLK_TMS, 3020 MPI3MR_RESETTM_TIMEOUT, &mrioc->host_tm_cmds, &resp_code, NULL); 3021 3022 if (ret) 3023 goto out; 3024 3025 retval = SUCCESS; 3026 out: 3027 sdev_printk(KERN_INFO, scmd->device, 3028 "Device(lun) reset is %s for scmd(%p)\n", 3029 ((retval == SUCCESS) ? "SUCCESS" : "FAILED"), scmd); 3030 3031 return retval; 3032 } 3033 3034 /** 3035 * mpi3mr_scan_start - Scan start callback handler 3036 * @shost: SCSI host reference 3037 * 3038 * Issue port enable request asynchronously. 3039 * 3040 * Return: Nothing 3041 */ 3042 static void mpi3mr_scan_start(struct Scsi_Host *shost) 3043 { 3044 struct mpi3mr_ioc *mrioc = shost_priv(shost); 3045 3046 mrioc->scan_started = 1; 3047 ioc_info(mrioc, "%s :Issuing Port Enable\n", __func__); 3048 if (mpi3mr_issue_port_enable(mrioc, 1)) { 3049 ioc_err(mrioc, "%s :Issuing port enable failed\n", __func__); 3050 mrioc->scan_started = 0; 3051 mrioc->scan_failed = MPI3_IOCSTATUS_INTERNAL_ERROR; 3052 } 3053 } 3054 3055 /** 3056 * mpi3mr_scan_finished - Scan finished callback handler 3057 * @shost: SCSI host reference 3058 * @time: Jiffies from the scan start 3059 * 3060 * Checks whether the port enable is completed or timedout or 3061 * failed and set the scan status accordingly after taking any 3062 * recovery if required. 3063 * 3064 * Return: 1 on scan finished or timed out, 0 for in progress 3065 */ 3066 static int mpi3mr_scan_finished(struct Scsi_Host *shost, 3067 unsigned long time) 3068 { 3069 struct mpi3mr_ioc *mrioc = shost_priv(shost); 3070 u32 pe_timeout = MPI3MR_PORTENABLE_TIMEOUT; 3071 3072 if (time >= (pe_timeout * HZ)) { 3073 mrioc->init_cmds.is_waiting = 0; 3074 mrioc->init_cmds.callback = NULL; 3075 mrioc->init_cmds.state = MPI3MR_CMD_NOTUSED; 3076 ioc_err(mrioc, "%s :port enable request timed out\n", __func__); 3077 mrioc->is_driver_loading = 0; 3078 mpi3mr_soft_reset_handler(mrioc, 3079 MPI3MR_RESET_FROM_PE_TIMEOUT, 1); 3080 } 3081 3082 if (mrioc->scan_failed) { 3083 ioc_err(mrioc, 3084 "%s :port enable failed with (ioc_status=0x%08x)\n", 3085 __func__, mrioc->scan_failed); 3086 mrioc->is_driver_loading = 0; 3087 mrioc->stop_drv_processing = 1; 3088 return 1; 3089 } 3090 3091 if (mrioc->scan_started) 3092 return 0; 3093 ioc_info(mrioc, "%s :port enable: SUCCESS\n", __func__); 3094 mpi3mr_start_watchdog(mrioc); 3095 mrioc->is_driver_loading = 0; 3096 3097 return 1; 3098 } 3099 3100 /** 3101 * mpi3mr_slave_destroy - Slave destroy callback handler 3102 * @sdev: SCSI device reference 3103 * 3104 * Cleanup and free per device(lun) private data. 3105 * 3106 * Return: Nothing. 3107 */ 3108 static void mpi3mr_slave_destroy(struct scsi_device *sdev) 3109 { 3110 struct Scsi_Host *shost; 3111 struct mpi3mr_ioc *mrioc; 3112 struct mpi3mr_stgt_priv_data *scsi_tgt_priv_data; 3113 struct mpi3mr_tgt_dev *tgt_dev; 3114 unsigned long flags; 3115 struct scsi_target *starget; 3116 3117 if (!sdev->hostdata) 3118 return; 3119 3120 starget = scsi_target(sdev); 3121 shost = dev_to_shost(&starget->dev); 3122 mrioc = shost_priv(shost); 3123 scsi_tgt_priv_data = starget->hostdata; 3124 3125 scsi_tgt_priv_data->num_luns--; 3126 3127 spin_lock_irqsave(&mrioc->tgtdev_lock, flags); 3128 tgt_dev = __mpi3mr_get_tgtdev_by_perst_id(mrioc, starget->id); 3129 if (tgt_dev && (!scsi_tgt_priv_data->num_luns)) 3130 tgt_dev->starget = NULL; 3131 if (tgt_dev) 3132 mpi3mr_tgtdev_put(tgt_dev); 3133 spin_unlock_irqrestore(&mrioc->tgtdev_lock, flags); 3134 3135 kfree(sdev->hostdata); 3136 sdev->hostdata = NULL; 3137 } 3138 3139 /** 3140 * mpi3mr_target_destroy - Target destroy callback handler 3141 * @starget: SCSI target reference 3142 * 3143 * Cleanup and free per target private data. 3144 * 3145 * Return: Nothing. 3146 */ 3147 static void mpi3mr_target_destroy(struct scsi_target *starget) 3148 { 3149 struct Scsi_Host *shost; 3150 struct mpi3mr_ioc *mrioc; 3151 struct mpi3mr_stgt_priv_data *scsi_tgt_priv_data; 3152 struct mpi3mr_tgt_dev *tgt_dev; 3153 unsigned long flags; 3154 3155 if (!starget->hostdata) 3156 return; 3157 3158 shost = dev_to_shost(&starget->dev); 3159 mrioc = shost_priv(shost); 3160 scsi_tgt_priv_data = starget->hostdata; 3161 3162 spin_lock_irqsave(&mrioc->tgtdev_lock, flags); 3163 tgt_dev = __mpi3mr_get_tgtdev_from_tgtpriv(mrioc, scsi_tgt_priv_data); 3164 if (tgt_dev && (tgt_dev->starget == starget) && 3165 (tgt_dev->perst_id == starget->id)) 3166 tgt_dev->starget = NULL; 3167 if (tgt_dev) { 3168 scsi_tgt_priv_data->tgt_dev = NULL; 3169 scsi_tgt_priv_data->perst_id = 0; 3170 mpi3mr_tgtdev_put(tgt_dev); 3171 mpi3mr_tgtdev_put(tgt_dev); 3172 } 3173 spin_unlock_irqrestore(&mrioc->tgtdev_lock, flags); 3174 3175 kfree(starget->hostdata); 3176 starget->hostdata = NULL; 3177 } 3178 3179 /** 3180 * mpi3mr_slave_configure - Slave configure callback handler 3181 * @sdev: SCSI device reference 3182 * 3183 * Configure queue depth, max hardware sectors and virt boundary 3184 * as required 3185 * 3186 * Return: 0 always. 3187 */ 3188 static int mpi3mr_slave_configure(struct scsi_device *sdev) 3189 { 3190 struct scsi_target *starget; 3191 struct Scsi_Host *shost; 3192 struct mpi3mr_ioc *mrioc; 3193 struct mpi3mr_tgt_dev *tgt_dev; 3194 unsigned long flags; 3195 int retval = 0; 3196 3197 starget = scsi_target(sdev); 3198 shost = dev_to_shost(&starget->dev); 3199 mrioc = shost_priv(shost); 3200 3201 spin_lock_irqsave(&mrioc->tgtdev_lock, flags); 3202 tgt_dev = __mpi3mr_get_tgtdev_by_perst_id(mrioc, starget->id); 3203 spin_unlock_irqrestore(&mrioc->tgtdev_lock, flags); 3204 if (!tgt_dev) 3205 return -ENXIO; 3206 3207 mpi3mr_change_queue_depth(sdev, tgt_dev->q_depth); 3208 switch (tgt_dev->dev_type) { 3209 case MPI3_DEVICE_DEVFORM_PCIE: 3210 /*The block layer hw sector size = 512*/ 3211 blk_queue_max_hw_sectors(sdev->request_queue, 3212 tgt_dev->dev_spec.pcie_inf.mdts / 512); 3213 blk_queue_virt_boundary(sdev->request_queue, 3214 ((1 << tgt_dev->dev_spec.pcie_inf.pgsz) - 1)); 3215 break; 3216 default: 3217 break; 3218 } 3219 3220 mpi3mr_tgtdev_put(tgt_dev); 3221 3222 return retval; 3223 } 3224 3225 /** 3226 * mpi3mr_slave_alloc -Slave alloc callback handler 3227 * @sdev: SCSI device reference 3228 * 3229 * Allocate per device(lun) private data and initialize it. 3230 * 3231 * Return: 0 on success -ENOMEM on memory allocation failure. 3232 */ 3233 static int mpi3mr_slave_alloc(struct scsi_device *sdev) 3234 { 3235 struct Scsi_Host *shost; 3236 struct mpi3mr_ioc *mrioc; 3237 struct mpi3mr_stgt_priv_data *scsi_tgt_priv_data; 3238 struct mpi3mr_tgt_dev *tgt_dev; 3239 struct mpi3mr_sdev_priv_data *scsi_dev_priv_data; 3240 unsigned long flags; 3241 struct scsi_target *starget; 3242 int retval = 0; 3243 3244 starget = scsi_target(sdev); 3245 shost = dev_to_shost(&starget->dev); 3246 mrioc = shost_priv(shost); 3247 scsi_tgt_priv_data = starget->hostdata; 3248 3249 spin_lock_irqsave(&mrioc->tgtdev_lock, flags); 3250 tgt_dev = __mpi3mr_get_tgtdev_by_perst_id(mrioc, starget->id); 3251 3252 if (tgt_dev) { 3253 if (tgt_dev->starget == NULL) 3254 tgt_dev->starget = starget; 3255 mpi3mr_tgtdev_put(tgt_dev); 3256 retval = 0; 3257 } else { 3258 spin_unlock_irqrestore(&mrioc->tgtdev_lock, flags); 3259 return -ENXIO; 3260 } 3261 3262 spin_unlock_irqrestore(&mrioc->tgtdev_lock, flags); 3263 3264 scsi_dev_priv_data = kzalloc(sizeof(*scsi_dev_priv_data), GFP_KERNEL); 3265 if (!scsi_dev_priv_data) 3266 return -ENOMEM; 3267 3268 scsi_dev_priv_data->lun_id = sdev->lun; 3269 scsi_dev_priv_data->tgt_priv_data = scsi_tgt_priv_data; 3270 sdev->hostdata = scsi_dev_priv_data; 3271 3272 scsi_tgt_priv_data->num_luns++; 3273 3274 return retval; 3275 } 3276 3277 /** 3278 * mpi3mr_target_alloc - Target alloc callback handler 3279 * @starget: SCSI target reference 3280 * 3281 * Allocate per target private data and initialize it. 3282 * 3283 * Return: 0 on success -ENOMEM on memory allocation failure. 3284 */ 3285 static int mpi3mr_target_alloc(struct scsi_target *starget) 3286 { 3287 struct Scsi_Host *shost = dev_to_shost(&starget->dev); 3288 struct mpi3mr_ioc *mrioc = shost_priv(shost); 3289 struct mpi3mr_stgt_priv_data *scsi_tgt_priv_data; 3290 struct mpi3mr_tgt_dev *tgt_dev; 3291 unsigned long flags; 3292 int retval = 0; 3293 3294 scsi_tgt_priv_data = kzalloc(sizeof(*scsi_tgt_priv_data), GFP_KERNEL); 3295 if (!scsi_tgt_priv_data) 3296 return -ENOMEM; 3297 3298 starget->hostdata = scsi_tgt_priv_data; 3299 3300 spin_lock_irqsave(&mrioc->tgtdev_lock, flags); 3301 tgt_dev = __mpi3mr_get_tgtdev_by_perst_id(mrioc, starget->id); 3302 if (tgt_dev && !tgt_dev->is_hidden) { 3303 scsi_tgt_priv_data->starget = starget; 3304 scsi_tgt_priv_data->dev_handle = tgt_dev->dev_handle; 3305 scsi_tgt_priv_data->perst_id = tgt_dev->perst_id; 3306 scsi_tgt_priv_data->dev_type = tgt_dev->dev_type; 3307 scsi_tgt_priv_data->tgt_dev = tgt_dev; 3308 tgt_dev->starget = starget; 3309 atomic_set(&scsi_tgt_priv_data->block_io, 0); 3310 retval = 0; 3311 } else 3312 retval = -ENXIO; 3313 spin_unlock_irqrestore(&mrioc->tgtdev_lock, flags); 3314 3315 return retval; 3316 } 3317 3318 /** 3319 * mpi3mr_check_return_unmap - Whether an unmap is allowed 3320 * @mrioc: Adapter instance reference 3321 * @scmd: SCSI Command reference 3322 * 3323 * The controller hardware cannot handle certain unmap commands 3324 * for NVMe drives, this routine checks those and return true 3325 * and completes the SCSI command with proper status and sense 3326 * data. 3327 * 3328 * Return: TRUE for not allowed unmap, FALSE otherwise. 3329 */ 3330 static bool mpi3mr_check_return_unmap(struct mpi3mr_ioc *mrioc, 3331 struct scsi_cmnd *scmd) 3332 { 3333 unsigned char *buf; 3334 u16 param_len, desc_len; 3335 3336 param_len = get_unaligned_be16(scmd->cmnd + 7); 3337 3338 if (!param_len) { 3339 ioc_warn(mrioc, 3340 "%s: cdb received with zero parameter length\n", 3341 __func__); 3342 scsi_print_command(scmd); 3343 scmd->result = DID_OK << 16; 3344 scmd->scsi_done(scmd); 3345 return true; 3346 } 3347 3348 if (param_len < 24) { 3349 ioc_warn(mrioc, 3350 "%s: cdb received with invalid param_len: %d\n", 3351 __func__, param_len); 3352 scsi_print_command(scmd); 3353 scmd->result = SAM_STAT_CHECK_CONDITION; 3354 scsi_build_sense_buffer(0, scmd->sense_buffer, ILLEGAL_REQUEST, 3355 0x1A, 0); 3356 scmd->scsi_done(scmd); 3357 return true; 3358 } 3359 if (param_len != scsi_bufflen(scmd)) { 3360 ioc_warn(mrioc, 3361 "%s: cdb received with param_len: %d bufflen: %d\n", 3362 __func__, param_len, scsi_bufflen(scmd)); 3363 scsi_print_command(scmd); 3364 scmd->result = SAM_STAT_CHECK_CONDITION; 3365 scsi_build_sense_buffer(0, scmd->sense_buffer, ILLEGAL_REQUEST, 3366 0x1A, 0); 3367 scmd->scsi_done(scmd); 3368 return true; 3369 } 3370 buf = kzalloc(scsi_bufflen(scmd), GFP_ATOMIC); 3371 if (!buf) { 3372 scsi_print_command(scmd); 3373 scmd->result = SAM_STAT_CHECK_CONDITION; 3374 scsi_build_sense_buffer(0, scmd->sense_buffer, ILLEGAL_REQUEST, 3375 0x55, 0x03); 3376 scmd->scsi_done(scmd); 3377 return true; 3378 } 3379 scsi_sg_copy_to_buffer(scmd, buf, scsi_bufflen(scmd)); 3380 desc_len = get_unaligned_be16(&buf[2]); 3381 3382 if (desc_len < 16) { 3383 ioc_warn(mrioc, 3384 "%s: Invalid descriptor length in param list: %d\n", 3385 __func__, desc_len); 3386 scsi_print_command(scmd); 3387 scmd->result = SAM_STAT_CHECK_CONDITION; 3388 scsi_build_sense_buffer(0, scmd->sense_buffer, ILLEGAL_REQUEST, 3389 0x26, 0); 3390 scmd->scsi_done(scmd); 3391 kfree(buf); 3392 return true; 3393 } 3394 3395 if (param_len > (desc_len + 8)) { 3396 scsi_print_command(scmd); 3397 ioc_warn(mrioc, 3398 "%s: Truncating param_len(%d) to desc_len+8(%d)\n", 3399 __func__, param_len, (desc_len + 8)); 3400 param_len = desc_len + 8; 3401 put_unaligned_be16(param_len, scmd->cmnd + 7); 3402 scsi_print_command(scmd); 3403 } 3404 3405 kfree(buf); 3406 return false; 3407 } 3408 3409 /** 3410 * mpi3mr_allow_scmd_to_fw - Command is allowed during shutdown 3411 * @scmd: SCSI Command reference 3412 * 3413 * Checks whether a cdb is allowed during shutdown or not. 3414 * 3415 * Return: TRUE for allowed commands, FALSE otherwise. 3416 */ 3417 3418 inline bool mpi3mr_allow_scmd_to_fw(struct scsi_cmnd *scmd) 3419 { 3420 switch (scmd->cmnd[0]) { 3421 case SYNCHRONIZE_CACHE: 3422 case START_STOP: 3423 return true; 3424 default: 3425 return false; 3426 } 3427 } 3428 3429 /** 3430 * mpi3mr_qcmd - I/O request despatcher 3431 * @shost: SCSI Host reference 3432 * @scmd: SCSI Command reference 3433 * 3434 * Issues the SCSI Command as an MPI3 request. 3435 * 3436 * Return: 0 on successful queueing of the request or if the 3437 * request is completed with failure. 3438 * SCSI_MLQUEUE_DEVICE_BUSY when the device is busy. 3439 * SCSI_MLQUEUE_HOST_BUSY when the host queue is full. 3440 */ 3441 static int mpi3mr_qcmd(struct Scsi_Host *shost, 3442 struct scsi_cmnd *scmd) 3443 { 3444 struct mpi3mr_ioc *mrioc = shost_priv(shost); 3445 struct mpi3mr_stgt_priv_data *stgt_priv_data; 3446 struct mpi3mr_sdev_priv_data *sdev_priv_data; 3447 struct scmd_priv *scmd_priv_data = NULL; 3448 struct mpi3_scsi_io_request *scsiio_req = NULL; 3449 struct op_req_qinfo *op_req_q = NULL; 3450 int retval = 0; 3451 u16 dev_handle; 3452 u16 host_tag; 3453 u32 scsiio_flags = 0; 3454 struct request *rq = scsi_cmd_to_rq(scmd); 3455 int iprio_class; 3456 3457 sdev_priv_data = scmd->device->hostdata; 3458 if (!sdev_priv_data || !sdev_priv_data->tgt_priv_data) { 3459 scmd->result = DID_NO_CONNECT << 16; 3460 scmd->scsi_done(scmd); 3461 goto out; 3462 } 3463 3464 if (mrioc->stop_drv_processing && 3465 !(mpi3mr_allow_scmd_to_fw(scmd))) { 3466 scmd->result = DID_NO_CONNECT << 16; 3467 scmd->scsi_done(scmd); 3468 goto out; 3469 } 3470 3471 if (mrioc->reset_in_progress) { 3472 retval = SCSI_MLQUEUE_HOST_BUSY; 3473 goto out; 3474 } 3475 3476 stgt_priv_data = sdev_priv_data->tgt_priv_data; 3477 3478 dev_handle = stgt_priv_data->dev_handle; 3479 if (dev_handle == MPI3MR_INVALID_DEV_HANDLE) { 3480 scmd->result = DID_NO_CONNECT << 16; 3481 scmd->scsi_done(scmd); 3482 goto out; 3483 } 3484 if (stgt_priv_data->dev_removed) { 3485 scmd->result = DID_NO_CONNECT << 16; 3486 scmd->scsi_done(scmd); 3487 goto out; 3488 } 3489 3490 if (atomic_read(&stgt_priv_data->block_io)) { 3491 if (mrioc->stop_drv_processing) { 3492 scmd->result = DID_NO_CONNECT << 16; 3493 scmd->scsi_done(scmd); 3494 goto out; 3495 } 3496 retval = SCSI_MLQUEUE_DEVICE_BUSY; 3497 goto out; 3498 } 3499 3500 if ((scmd->cmnd[0] == UNMAP) && 3501 (stgt_priv_data->dev_type == MPI3_DEVICE_DEVFORM_PCIE) && 3502 mpi3mr_check_return_unmap(mrioc, scmd)) 3503 goto out; 3504 3505 host_tag = mpi3mr_host_tag_for_scmd(mrioc, scmd); 3506 if (host_tag == MPI3MR_HOSTTAG_INVALID) { 3507 scmd->result = DID_ERROR << 16; 3508 scmd->scsi_done(scmd); 3509 goto out; 3510 } 3511 3512 if (scmd->sc_data_direction == DMA_FROM_DEVICE) 3513 scsiio_flags = MPI3_SCSIIO_FLAGS_DATADIRECTION_READ; 3514 else if (scmd->sc_data_direction == DMA_TO_DEVICE) 3515 scsiio_flags = MPI3_SCSIIO_FLAGS_DATADIRECTION_WRITE; 3516 else 3517 scsiio_flags = MPI3_SCSIIO_FLAGS_DATADIRECTION_NO_DATA_TRANSFER; 3518 3519 scsiio_flags |= MPI3_SCSIIO_FLAGS_TASKATTRIBUTE_SIMPLEQ; 3520 3521 if (sdev_priv_data->ncq_prio_enable) { 3522 iprio_class = IOPRIO_PRIO_CLASS(req_get_ioprio(rq)); 3523 if (iprio_class == IOPRIO_CLASS_RT) 3524 scsiio_flags |= 1 << MPI3_SCSIIO_FLAGS_CMDPRI_SHIFT; 3525 } 3526 3527 if (scmd->cmd_len > 16) 3528 scsiio_flags |= MPI3_SCSIIO_FLAGS_CDB_GREATER_THAN_16; 3529 3530 scmd_priv_data = scsi_cmd_priv(scmd); 3531 memset(scmd_priv_data->mpi3mr_scsiio_req, 0, MPI3MR_ADMIN_REQ_FRAME_SZ); 3532 scsiio_req = (struct mpi3_scsi_io_request *)scmd_priv_data->mpi3mr_scsiio_req; 3533 scsiio_req->function = MPI3_FUNCTION_SCSI_IO; 3534 scsiio_req->host_tag = cpu_to_le16(host_tag); 3535 3536 mpi3mr_setup_eedp(mrioc, scmd, scsiio_req); 3537 3538 memcpy(scsiio_req->cdb.cdb32, scmd->cmnd, scmd->cmd_len); 3539 scsiio_req->data_length = cpu_to_le32(scsi_bufflen(scmd)); 3540 scsiio_req->dev_handle = cpu_to_le16(dev_handle); 3541 scsiio_req->flags = cpu_to_le32(scsiio_flags); 3542 int_to_scsilun(sdev_priv_data->lun_id, 3543 (struct scsi_lun *)scsiio_req->lun); 3544 3545 if (mpi3mr_build_sg_scmd(mrioc, scmd, scsiio_req)) { 3546 mpi3mr_clear_scmd_priv(mrioc, scmd); 3547 retval = SCSI_MLQUEUE_HOST_BUSY; 3548 goto out; 3549 } 3550 op_req_q = &mrioc->req_qinfo[scmd_priv_data->req_q_idx]; 3551 3552 if (mpi3mr_op_request_post(mrioc, op_req_q, 3553 scmd_priv_data->mpi3mr_scsiio_req)) { 3554 mpi3mr_clear_scmd_priv(mrioc, scmd); 3555 retval = SCSI_MLQUEUE_HOST_BUSY; 3556 goto out; 3557 } 3558 3559 out: 3560 return retval; 3561 } 3562 3563 static struct scsi_host_template mpi3mr_driver_template = { 3564 .module = THIS_MODULE, 3565 .name = "MPI3 Storage Controller", 3566 .proc_name = MPI3MR_DRIVER_NAME, 3567 .queuecommand = mpi3mr_qcmd, 3568 .target_alloc = mpi3mr_target_alloc, 3569 .slave_alloc = mpi3mr_slave_alloc, 3570 .slave_configure = mpi3mr_slave_configure, 3571 .target_destroy = mpi3mr_target_destroy, 3572 .slave_destroy = mpi3mr_slave_destroy, 3573 .scan_finished = mpi3mr_scan_finished, 3574 .scan_start = mpi3mr_scan_start, 3575 .change_queue_depth = mpi3mr_change_queue_depth, 3576 .eh_device_reset_handler = mpi3mr_eh_dev_reset, 3577 .eh_target_reset_handler = mpi3mr_eh_target_reset, 3578 .eh_host_reset_handler = mpi3mr_eh_host_reset, 3579 .bios_param = mpi3mr_bios_param, 3580 .map_queues = mpi3mr_map_queues, 3581 .no_write_same = 1, 3582 .can_queue = 1, 3583 .this_id = -1, 3584 .sg_tablesize = MPI3MR_SG_DEPTH, 3585 /* max xfer supported is 1M (2K in 512 byte sized sectors) 3586 */ 3587 .max_sectors = 2048, 3588 .cmd_per_lun = MPI3MR_MAX_CMDS_LUN, 3589 .track_queue_depth = 1, 3590 .cmd_size = sizeof(struct scmd_priv), 3591 }; 3592 3593 /** 3594 * mpi3mr_init_drv_cmd - Initialize internal command tracker 3595 * @cmdptr: Internal command tracker 3596 * @host_tag: Host tag used for the specific command 3597 * 3598 * Initialize the internal command tracker structure with 3599 * specified host tag. 3600 * 3601 * Return: Nothing. 3602 */ 3603 static inline void mpi3mr_init_drv_cmd(struct mpi3mr_drv_cmd *cmdptr, 3604 u16 host_tag) 3605 { 3606 mutex_init(&cmdptr->mutex); 3607 cmdptr->reply = NULL; 3608 cmdptr->state = MPI3MR_CMD_NOTUSED; 3609 cmdptr->dev_handle = MPI3MR_INVALID_DEV_HANDLE; 3610 cmdptr->host_tag = host_tag; 3611 } 3612 3613 /** 3614 * osintfc_mrioc_security_status -Check controller secure status 3615 * @pdev: PCI device instance 3616 * 3617 * Read the Device Serial Number capability from PCI config 3618 * space and decide whether the controller is secure or not. 3619 * 3620 * Return: 0 on success, non-zero on failure. 3621 */ 3622 static int 3623 osintfc_mrioc_security_status(struct pci_dev *pdev) 3624 { 3625 u32 cap_data; 3626 int base; 3627 u32 ctlr_status; 3628 u32 debug_status; 3629 int retval = 0; 3630 3631 base = pci_find_ext_capability(pdev, PCI_EXT_CAP_ID_DSN); 3632 if (!base) { 3633 dev_err(&pdev->dev, 3634 "%s: PCI_EXT_CAP_ID_DSN is not supported\n", __func__); 3635 return -1; 3636 } 3637 3638 pci_read_config_dword(pdev, base + 4, &cap_data); 3639 3640 debug_status = cap_data & MPI3MR_CTLR_SECURE_DBG_STATUS_MASK; 3641 ctlr_status = cap_data & MPI3MR_CTLR_SECURITY_STATUS_MASK; 3642 3643 switch (ctlr_status) { 3644 case MPI3MR_INVALID_DEVICE: 3645 dev_err(&pdev->dev, 3646 "%s: Non secure ctlr (Invalid) is detected: DID: 0x%x: SVID: 0x%x: SDID: 0x%x\n", 3647 __func__, pdev->device, pdev->subsystem_vendor, 3648 pdev->subsystem_device); 3649 retval = -1; 3650 break; 3651 case MPI3MR_CONFIG_SECURE_DEVICE: 3652 if (!debug_status) 3653 dev_info(&pdev->dev, 3654 "%s: Config secure ctlr is detected\n", 3655 __func__); 3656 break; 3657 case MPI3MR_HARD_SECURE_DEVICE: 3658 break; 3659 case MPI3MR_TAMPERED_DEVICE: 3660 dev_err(&pdev->dev, 3661 "%s: Non secure ctlr (Tampered) is detected: DID: 0x%x: SVID: 0x%x: SDID: 0x%x\n", 3662 __func__, pdev->device, pdev->subsystem_vendor, 3663 pdev->subsystem_device); 3664 retval = -1; 3665 break; 3666 default: 3667 retval = -1; 3668 break; 3669 } 3670 3671 if (!retval && debug_status) { 3672 dev_err(&pdev->dev, 3673 "%s: Non secure ctlr (Secure Dbg) is detected: DID: 0x%x: SVID: 0x%x: SDID: 0x%x\n", 3674 __func__, pdev->device, pdev->subsystem_vendor, 3675 pdev->subsystem_device); 3676 retval = -1; 3677 } 3678 3679 return retval; 3680 } 3681 3682 /** 3683 * mpi3mr_probe - PCI probe callback 3684 * @pdev: PCI device instance 3685 * @id: PCI device ID details 3686 * 3687 * controller initialization routine. Checks the security status 3688 * of the controller and if it is invalid or tampered return the 3689 * probe without initializing the controller. Otherwise, 3690 * allocate per adapter instance through shost_priv and 3691 * initialize controller specific data structures, initializae 3692 * the controller hardware, add shost to the SCSI subsystem. 3693 * 3694 * Return: 0 on success, non-zero on failure. 3695 */ 3696 3697 static int 3698 mpi3mr_probe(struct pci_dev *pdev, const struct pci_device_id *id) 3699 { 3700 struct mpi3mr_ioc *mrioc = NULL; 3701 struct Scsi_Host *shost = NULL; 3702 int retval = 0, i; 3703 3704 if (osintfc_mrioc_security_status(pdev)) { 3705 warn_non_secure_ctlr = 1; 3706 return 1; /* For Invalid and Tampered device */ 3707 } 3708 3709 shost = scsi_host_alloc(&mpi3mr_driver_template, 3710 sizeof(struct mpi3mr_ioc)); 3711 if (!shost) { 3712 retval = -ENODEV; 3713 goto shost_failed; 3714 } 3715 3716 mrioc = shost_priv(shost); 3717 mrioc->id = mrioc_ids++; 3718 sprintf(mrioc->driver_name, "%s", MPI3MR_DRIVER_NAME); 3719 sprintf(mrioc->name, "%s%d", mrioc->driver_name, mrioc->id); 3720 INIT_LIST_HEAD(&mrioc->list); 3721 spin_lock(&mrioc_list_lock); 3722 list_add_tail(&mrioc->list, &mrioc_list); 3723 spin_unlock(&mrioc_list_lock); 3724 3725 spin_lock_init(&mrioc->admin_req_lock); 3726 spin_lock_init(&mrioc->reply_free_queue_lock); 3727 spin_lock_init(&mrioc->sbq_lock); 3728 spin_lock_init(&mrioc->fwevt_lock); 3729 spin_lock_init(&mrioc->tgtdev_lock); 3730 spin_lock_init(&mrioc->watchdog_lock); 3731 spin_lock_init(&mrioc->chain_buf_lock); 3732 3733 INIT_LIST_HEAD(&mrioc->fwevt_list); 3734 INIT_LIST_HEAD(&mrioc->tgtdev_list); 3735 INIT_LIST_HEAD(&mrioc->delayed_rmhs_list); 3736 3737 mutex_init(&mrioc->reset_mutex); 3738 mpi3mr_init_drv_cmd(&mrioc->init_cmds, MPI3MR_HOSTTAG_INITCMDS); 3739 mpi3mr_init_drv_cmd(&mrioc->host_tm_cmds, MPI3MR_HOSTTAG_BLK_TMS); 3740 3741 for (i = 0; i < MPI3MR_NUM_DEVRMCMD; i++) 3742 mpi3mr_init_drv_cmd(&mrioc->dev_rmhs_cmds[i], 3743 MPI3MR_HOSTTAG_DEVRMCMD_MIN + i); 3744 3745 if (pdev->revision) 3746 mrioc->enable_segqueue = true; 3747 3748 init_waitqueue_head(&mrioc->reset_waitq); 3749 mrioc->logging_level = logging_level; 3750 mrioc->shost = shost; 3751 mrioc->pdev = pdev; 3752 3753 /* init shost parameters */ 3754 shost->max_cmd_len = MPI3MR_MAX_CDB_LENGTH; 3755 shost->max_lun = -1; 3756 shost->unique_id = mrioc->id; 3757 3758 shost->max_channel = 1; 3759 shost->max_id = 0xFFFFFFFF; 3760 3761 if (prot_mask >= 0) 3762 scsi_host_set_prot(shost, prot_mask); 3763 else { 3764 prot_mask = SHOST_DIF_TYPE1_PROTECTION 3765 | SHOST_DIF_TYPE2_PROTECTION 3766 | SHOST_DIF_TYPE3_PROTECTION; 3767 scsi_host_set_prot(shost, prot_mask); 3768 } 3769 3770 ioc_info(mrioc, 3771 "%s :host protection capabilities enabled %s%s%s%s%s%s%s\n", 3772 __func__, 3773 (prot_mask & SHOST_DIF_TYPE1_PROTECTION) ? " DIF1" : "", 3774 (prot_mask & SHOST_DIF_TYPE2_PROTECTION) ? " DIF2" : "", 3775 (prot_mask & SHOST_DIF_TYPE3_PROTECTION) ? " DIF3" : "", 3776 (prot_mask & SHOST_DIX_TYPE0_PROTECTION) ? " DIX0" : "", 3777 (prot_mask & SHOST_DIX_TYPE1_PROTECTION) ? " DIX1" : "", 3778 (prot_mask & SHOST_DIX_TYPE2_PROTECTION) ? " DIX2" : "", 3779 (prot_mask & SHOST_DIX_TYPE3_PROTECTION) ? " DIX3" : ""); 3780 3781 if (prot_guard_mask) 3782 scsi_host_set_guard(shost, (prot_guard_mask & 3)); 3783 else 3784 scsi_host_set_guard(shost, SHOST_DIX_GUARD_CRC); 3785 3786 snprintf(mrioc->fwevt_worker_name, sizeof(mrioc->fwevt_worker_name), 3787 "%s%d_fwevt_wrkr", mrioc->driver_name, mrioc->id); 3788 mrioc->fwevt_worker_thread = alloc_ordered_workqueue( 3789 mrioc->fwevt_worker_name, WQ_MEM_RECLAIM); 3790 if (!mrioc->fwevt_worker_thread) { 3791 ioc_err(mrioc, "failure at %s:%d/%s()!\n", 3792 __FILE__, __LINE__, __func__); 3793 retval = -ENODEV; 3794 goto out_fwevtthread_failed; 3795 } 3796 3797 mrioc->is_driver_loading = 1; 3798 if (mpi3mr_init_ioc(mrioc, 0)) { 3799 ioc_err(mrioc, "failure at %s:%d/%s()!\n", 3800 __FILE__, __LINE__, __func__); 3801 retval = -ENODEV; 3802 goto out_iocinit_failed; 3803 } 3804 3805 shost->nr_hw_queues = mrioc->num_op_reply_q; 3806 shost->can_queue = mrioc->max_host_ios; 3807 shost->sg_tablesize = MPI3MR_SG_DEPTH; 3808 shost->max_id = mrioc->facts.max_perids; 3809 3810 retval = scsi_add_host(shost, &pdev->dev); 3811 if (retval) { 3812 ioc_err(mrioc, "failure at %s:%d/%s()!\n", 3813 __FILE__, __LINE__, __func__); 3814 goto addhost_failed; 3815 } 3816 3817 scsi_scan_host(shost); 3818 return retval; 3819 3820 addhost_failed: 3821 mpi3mr_cleanup_ioc(mrioc, 0); 3822 out_iocinit_failed: 3823 destroy_workqueue(mrioc->fwevt_worker_thread); 3824 out_fwevtthread_failed: 3825 spin_lock(&mrioc_list_lock); 3826 list_del(&mrioc->list); 3827 spin_unlock(&mrioc_list_lock); 3828 scsi_host_put(shost); 3829 shost_failed: 3830 return retval; 3831 } 3832 3833 /** 3834 * mpi3mr_remove - PCI remove callback 3835 * @pdev: PCI device instance 3836 * 3837 * Free up all memory and resources associated with the 3838 * controllerand target devices, unregister the shost. 3839 * 3840 * Return: Nothing. 3841 */ 3842 static void mpi3mr_remove(struct pci_dev *pdev) 3843 { 3844 struct Scsi_Host *shost = pci_get_drvdata(pdev); 3845 struct mpi3mr_ioc *mrioc; 3846 struct workqueue_struct *wq; 3847 unsigned long flags; 3848 struct mpi3mr_tgt_dev *tgtdev, *tgtdev_next; 3849 3850 if (!shost) 3851 return; 3852 3853 mrioc = shost_priv(shost); 3854 while (mrioc->reset_in_progress || mrioc->is_driver_loading) 3855 ssleep(1); 3856 3857 mrioc->stop_drv_processing = 1; 3858 mpi3mr_cleanup_fwevt_list(mrioc); 3859 spin_lock_irqsave(&mrioc->fwevt_lock, flags); 3860 wq = mrioc->fwevt_worker_thread; 3861 mrioc->fwevt_worker_thread = NULL; 3862 spin_unlock_irqrestore(&mrioc->fwevt_lock, flags); 3863 if (wq) 3864 destroy_workqueue(wq); 3865 scsi_remove_host(shost); 3866 3867 list_for_each_entry_safe(tgtdev, tgtdev_next, &mrioc->tgtdev_list, 3868 list) { 3869 mpi3mr_remove_tgtdev_from_host(mrioc, tgtdev); 3870 mpi3mr_tgtdev_del_from_list(mrioc, tgtdev); 3871 mpi3mr_tgtdev_put(tgtdev); 3872 } 3873 mpi3mr_cleanup_ioc(mrioc, 0); 3874 3875 spin_lock(&mrioc_list_lock); 3876 list_del(&mrioc->list); 3877 spin_unlock(&mrioc_list_lock); 3878 3879 scsi_host_put(shost); 3880 } 3881 3882 /** 3883 * mpi3mr_shutdown - PCI shutdown callback 3884 * @pdev: PCI device instance 3885 * 3886 * Free up all memory and resources associated with the 3887 * controller 3888 * 3889 * Return: Nothing. 3890 */ 3891 static void mpi3mr_shutdown(struct pci_dev *pdev) 3892 { 3893 struct Scsi_Host *shost = pci_get_drvdata(pdev); 3894 struct mpi3mr_ioc *mrioc; 3895 struct workqueue_struct *wq; 3896 unsigned long flags; 3897 3898 if (!shost) 3899 return; 3900 3901 mrioc = shost_priv(shost); 3902 while (mrioc->reset_in_progress || mrioc->is_driver_loading) 3903 ssleep(1); 3904 3905 mrioc->stop_drv_processing = 1; 3906 mpi3mr_cleanup_fwevt_list(mrioc); 3907 spin_lock_irqsave(&mrioc->fwevt_lock, flags); 3908 wq = mrioc->fwevt_worker_thread; 3909 mrioc->fwevt_worker_thread = NULL; 3910 spin_unlock_irqrestore(&mrioc->fwevt_lock, flags); 3911 if (wq) 3912 destroy_workqueue(wq); 3913 mpi3mr_cleanup_ioc(mrioc, 0); 3914 } 3915 3916 #ifdef CONFIG_PM 3917 /** 3918 * mpi3mr_suspend - PCI power management suspend callback 3919 * @pdev: PCI device instance 3920 * @state: New power state 3921 * 3922 * Change the power state to the given value and cleanup the IOC 3923 * by issuing MUR and shutdown notification 3924 * 3925 * Return: 0 always. 3926 */ 3927 static int mpi3mr_suspend(struct pci_dev *pdev, pm_message_t state) 3928 { 3929 struct Scsi_Host *shost = pci_get_drvdata(pdev); 3930 struct mpi3mr_ioc *mrioc; 3931 pci_power_t device_state; 3932 3933 if (!shost) 3934 return 0; 3935 3936 mrioc = shost_priv(shost); 3937 while (mrioc->reset_in_progress || mrioc->is_driver_loading) 3938 ssleep(1); 3939 mrioc->stop_drv_processing = 1; 3940 mpi3mr_cleanup_fwevt_list(mrioc); 3941 scsi_block_requests(shost); 3942 mpi3mr_stop_watchdog(mrioc); 3943 mpi3mr_cleanup_ioc(mrioc, 1); 3944 3945 device_state = pci_choose_state(pdev, state); 3946 ioc_info(mrioc, "pdev=0x%p, slot=%s, entering operating state [D%d]\n", 3947 pdev, pci_name(pdev), device_state); 3948 pci_save_state(pdev); 3949 pci_set_power_state(pdev, device_state); 3950 mpi3mr_cleanup_resources(mrioc); 3951 3952 return 0; 3953 } 3954 3955 /** 3956 * mpi3mr_resume - PCI power management resume callback 3957 * @pdev: PCI device instance 3958 * 3959 * Restore the power state to D0 and reinitialize the controller 3960 * and resume I/O operations to the target devices 3961 * 3962 * Return: 0 on success, non-zero on failure 3963 */ 3964 static int mpi3mr_resume(struct pci_dev *pdev) 3965 { 3966 struct Scsi_Host *shost = pci_get_drvdata(pdev); 3967 struct mpi3mr_ioc *mrioc; 3968 pci_power_t device_state = pdev->current_state; 3969 int r; 3970 3971 if (!shost) 3972 return 0; 3973 3974 mrioc = shost_priv(shost); 3975 3976 ioc_info(mrioc, "pdev=0x%p, slot=%s, previous operating state [D%d]\n", 3977 pdev, pci_name(pdev), device_state); 3978 pci_set_power_state(pdev, PCI_D0); 3979 pci_enable_wake(pdev, PCI_D0, 0); 3980 pci_restore_state(pdev); 3981 mrioc->pdev = pdev; 3982 mrioc->cpu_count = num_online_cpus(); 3983 r = mpi3mr_setup_resources(mrioc); 3984 if (r) { 3985 ioc_info(mrioc, "%s: Setup resources failed[%d]\n", 3986 __func__, r); 3987 return r; 3988 } 3989 3990 mrioc->stop_drv_processing = 0; 3991 mpi3mr_init_ioc(mrioc, 1); 3992 scsi_unblock_requests(shost); 3993 mpi3mr_start_watchdog(mrioc); 3994 3995 return 0; 3996 } 3997 #endif 3998 3999 static const struct pci_device_id mpi3mr_pci_id_table[] = { 4000 { 4001 PCI_DEVICE_SUB(PCI_VENDOR_ID_LSI_LOGIC, 0x00A5, 4002 PCI_ANY_ID, PCI_ANY_ID) 4003 }, 4004 { 0 } 4005 }; 4006 MODULE_DEVICE_TABLE(pci, mpi3mr_pci_id_table); 4007 4008 static struct pci_driver mpi3mr_pci_driver = { 4009 .name = MPI3MR_DRIVER_NAME, 4010 .id_table = mpi3mr_pci_id_table, 4011 .probe = mpi3mr_probe, 4012 .remove = mpi3mr_remove, 4013 .shutdown = mpi3mr_shutdown, 4014 #ifdef CONFIG_PM 4015 .suspend = mpi3mr_suspend, 4016 .resume = mpi3mr_resume, 4017 #endif 4018 }; 4019 4020 static int __init mpi3mr_init(void) 4021 { 4022 int ret_val; 4023 4024 pr_info("Loading %s version %s\n", MPI3MR_DRIVER_NAME, 4025 MPI3MR_DRIVER_VERSION); 4026 4027 ret_val = pci_register_driver(&mpi3mr_pci_driver); 4028 4029 return ret_val; 4030 } 4031 4032 static void __exit mpi3mr_exit(void) 4033 { 4034 if (warn_non_secure_ctlr) 4035 pr_warn( 4036 "Unloading %s version %s while managing a non secure controller\n", 4037 MPI3MR_DRIVER_NAME, MPI3MR_DRIVER_VERSION); 4038 else 4039 pr_info("Unloading %s version %s\n", MPI3MR_DRIVER_NAME, 4040 MPI3MR_DRIVER_VERSION); 4041 4042 pci_unregister_driver(&mpi3mr_pci_driver); 4043 } 4044 4045 module_init(mpi3mr_init); 4046 module_exit(mpi3mr_exit); 4047