1 // SPDX-License-Identifier: GPL-2.0-or-later
3 * Driver for Broadcom MPI3 Storage Controllers
5 * Copyright (C) 2017-2022 Broadcom Inc.
6 * (mailto: mpi3mr-linuxdrv.pdl@broadcom.com)
12 /* global driver scop variables */
13 LIST_HEAD(mrioc_list);
14 DEFINE_SPINLOCK(mrioc_list_lock);
16 static int warn_non_secure_ctlr;
17 atomic64_t event_counter;
19 MODULE_AUTHOR(MPI3MR_DRIVER_AUTHOR);
20 MODULE_DESCRIPTION(MPI3MR_DRIVER_DESC);
21 MODULE_LICENSE(MPI3MR_DRIVER_LICENSE);
22 MODULE_VERSION(MPI3MR_DRIVER_VERSION);
24 /* Module parameters*/
26 module_param(prot_mask, int, 0);
27 MODULE_PARM_DESC(prot_mask, "Host protection capabilities mask, def=0x07");
29 static int prot_guard_mask = 3;
30 module_param(prot_guard_mask, int, 0);
31 MODULE_PARM_DESC(prot_guard_mask, " Host protection guard mask, def=3");
32 static int logging_level;
33 module_param(logging_level, int, 0);
34 MODULE_PARM_DESC(logging_level,
35 " bits for enabling additional logging info (default=0)");
37 /* Forward declarations*/
38 static void mpi3mr_send_event_ack(struct mpi3mr_ioc *mrioc, u8 event,
39 struct mpi3mr_drv_cmd *cmdparam, u32 event_ctx);
42 * mpi3mr_host_tag_for_scmd - Get host tag for a scmd
43 * @mrioc: Adapter instance reference
44 * @scmd: SCSI command reference
46 * Calculate the host tag based on block tag for a given scmd.
48 * Return: Valid host tag or MPI3MR_HOSTTAG_INVALID.
50 static u16 mpi3mr_host_tag_for_scmd(struct mpi3mr_ioc *mrioc,
51 struct scsi_cmnd *scmd)
53 struct scmd_priv *priv = NULL;
55 u16 host_tag, hw_queue;
57 unique_tag = blk_mq_unique_tag(scsi_cmd_to_rq(scmd));
59 hw_queue = blk_mq_unique_tag_to_hwq(unique_tag);
60 if (hw_queue >= mrioc->num_op_reply_q)
61 return MPI3MR_HOSTTAG_INVALID;
62 host_tag = blk_mq_unique_tag_to_tag(unique_tag);
64 if (WARN_ON(host_tag >= mrioc->max_host_ios))
65 return MPI3MR_HOSTTAG_INVALID;
67 priv = scsi_cmd_priv(scmd);
68 /*host_tag 0 is invalid hence incrementing by 1*/
69 priv->host_tag = host_tag + 1;
71 priv->in_lld_scope = 1;
72 priv->req_q_idx = hw_queue;
73 priv->meta_chain_idx = -1;
75 priv->meta_sg_valid = 0;
76 return priv->host_tag;
80 * mpi3mr_scmd_from_host_tag - Get SCSI command from host tag
81 * @mrioc: Adapter instance reference
83 * @qidx: Operational queue index
85 * Identify the block tag from the host tag and queue index and
86 * retrieve associated scsi command using scsi_host_find_tag().
88 * Return: SCSI command reference or NULL.
90 static struct scsi_cmnd *mpi3mr_scmd_from_host_tag(
91 struct mpi3mr_ioc *mrioc, u16 host_tag, u16 qidx)
93 struct scsi_cmnd *scmd = NULL;
94 struct scmd_priv *priv = NULL;
95 u32 unique_tag = host_tag - 1;
97 if (WARN_ON(host_tag > mrioc->max_host_ios))
100 unique_tag |= (qidx << BLK_MQ_UNIQUE_TAG_BITS);
102 scmd = scsi_host_find_tag(mrioc->shost, unique_tag);
104 priv = scsi_cmd_priv(scmd);
105 if (!priv->in_lld_scope)
113 * mpi3mr_clear_scmd_priv - Cleanup SCSI command private date
114 * @mrioc: Adapter instance reference
115 * @scmd: SCSI command reference
117 * Invalidate the SCSI command private data to mark the command
118 * is not in LLD scope anymore.
122 static void mpi3mr_clear_scmd_priv(struct mpi3mr_ioc *mrioc,
123 struct scsi_cmnd *scmd)
125 struct scmd_priv *priv = NULL;
127 priv = scsi_cmd_priv(scmd);
129 if (WARN_ON(priv->in_lld_scope == 0))
131 priv->host_tag = MPI3MR_HOSTTAG_INVALID;
132 priv->req_q_idx = 0xFFFF;
134 priv->in_lld_scope = 0;
135 priv->meta_sg_valid = 0;
136 if (priv->chain_idx >= 0) {
137 clear_bit(priv->chain_idx, mrioc->chain_bitmap);
138 priv->chain_idx = -1;
140 if (priv->meta_chain_idx >= 0) {
141 clear_bit(priv->meta_chain_idx, mrioc->chain_bitmap);
142 priv->meta_chain_idx = -1;
146 static void mpi3mr_dev_rmhs_send_tm(struct mpi3mr_ioc *mrioc, u16 handle,
147 struct mpi3mr_drv_cmd *cmdparam, u8 iou_rc);
148 static void mpi3mr_fwevt_worker(struct work_struct *work);
151 * mpi3mr_fwevt_free - firmware event memory dealloctor
152 * @r: k reference pointer of the firmware event
154 * Free firmware event memory when no reference.
156 static void mpi3mr_fwevt_free(struct kref *r)
158 kfree(container_of(r, struct mpi3mr_fwevt, ref_count));
162 * mpi3mr_fwevt_get - k reference incrementor
163 * @fwevt: Firmware event reference
165 * Increment firmware event reference count.
167 static void mpi3mr_fwevt_get(struct mpi3mr_fwevt *fwevt)
169 kref_get(&fwevt->ref_count);
173 * mpi3mr_fwevt_put - k reference decrementor
174 * @fwevt: Firmware event reference
176 * decrement firmware event reference count.
178 static void mpi3mr_fwevt_put(struct mpi3mr_fwevt *fwevt)
180 kref_put(&fwevt->ref_count, mpi3mr_fwevt_free);
184 * mpi3mr_alloc_fwevt - Allocate firmware event
185 * @len: length of firmware event data to allocate
187 * Allocate firmware event with required length and initialize
188 * the reference counter.
190 * Return: firmware event reference.
192 static struct mpi3mr_fwevt *mpi3mr_alloc_fwevt(int len)
194 struct mpi3mr_fwevt *fwevt;
196 fwevt = kzalloc(sizeof(*fwevt) + len, GFP_ATOMIC);
200 kref_init(&fwevt->ref_count);
205 * mpi3mr_fwevt_add_to_list - Add firmware event to the list
206 * @mrioc: Adapter instance reference
207 * @fwevt: Firmware event reference
209 * Add the given firmware event to the firmware event list.
213 static void mpi3mr_fwevt_add_to_list(struct mpi3mr_ioc *mrioc,
214 struct mpi3mr_fwevt *fwevt)
218 if (!mrioc->fwevt_worker_thread)
221 spin_lock_irqsave(&mrioc->fwevt_lock, flags);
222 /* get fwevt reference count while adding it to fwevt_list */
223 mpi3mr_fwevt_get(fwevt);
224 INIT_LIST_HEAD(&fwevt->list);
225 list_add_tail(&fwevt->list, &mrioc->fwevt_list);
226 INIT_WORK(&fwevt->work, mpi3mr_fwevt_worker);
227 /* get fwevt reference count while enqueueing it to worker queue */
228 mpi3mr_fwevt_get(fwevt);
229 queue_work(mrioc->fwevt_worker_thread, &fwevt->work);
230 spin_unlock_irqrestore(&mrioc->fwevt_lock, flags);
234 * mpi3mr_fwevt_del_from_list - Delete firmware event from list
235 * @mrioc: Adapter instance reference
236 * @fwevt: Firmware event reference
238 * Delete the given firmware event from the firmware event list.
242 static void mpi3mr_fwevt_del_from_list(struct mpi3mr_ioc *mrioc,
243 struct mpi3mr_fwevt *fwevt)
247 spin_lock_irqsave(&mrioc->fwevt_lock, flags);
248 if (!list_empty(&fwevt->list)) {
249 list_del_init(&fwevt->list);
251 * Put fwevt reference count after
252 * removing it from fwevt_list
254 mpi3mr_fwevt_put(fwevt);
256 spin_unlock_irqrestore(&mrioc->fwevt_lock, flags);
260 * mpi3mr_dequeue_fwevt - Dequeue firmware event from the list
261 * @mrioc: Adapter instance reference
263 * Dequeue a firmware event from the firmware event list.
265 * Return: firmware event.
267 static struct mpi3mr_fwevt *mpi3mr_dequeue_fwevt(
268 struct mpi3mr_ioc *mrioc)
271 struct mpi3mr_fwevt *fwevt = NULL;
273 spin_lock_irqsave(&mrioc->fwevt_lock, flags);
274 if (!list_empty(&mrioc->fwevt_list)) {
275 fwevt = list_first_entry(&mrioc->fwevt_list,
276 struct mpi3mr_fwevt, list);
277 list_del_init(&fwevt->list);
279 * Put fwevt reference count after
280 * removing it from fwevt_list
282 mpi3mr_fwevt_put(fwevt);
284 spin_unlock_irqrestore(&mrioc->fwevt_lock, flags);
290 * mpi3mr_cancel_work - cancel firmware event
291 * @fwevt: fwevt object which needs to be canceled
295 static void mpi3mr_cancel_work(struct mpi3mr_fwevt *fwevt)
298 * Wait on the fwevt to complete. If this returns 1, then
299 * the event was never executed.
301 * If it did execute, we wait for it to finish, and the put will
302 * happen from mpi3mr_process_fwevt()
304 if (cancel_work_sync(&fwevt->work)) {
306 * Put fwevt reference count after
307 * dequeuing it from worker queue
309 mpi3mr_fwevt_put(fwevt);
311 * Put fwevt reference count to neutralize
312 * kref_init increment
314 mpi3mr_fwevt_put(fwevt);
319 * mpi3mr_cleanup_fwevt_list - Cleanup firmware event list
320 * @mrioc: Adapter instance reference
322 * Flush all pending firmware events from the firmware event
327 void mpi3mr_cleanup_fwevt_list(struct mpi3mr_ioc *mrioc)
329 struct mpi3mr_fwevt *fwevt = NULL;
331 if ((list_empty(&mrioc->fwevt_list) && !mrioc->current_event) ||
332 !mrioc->fwevt_worker_thread)
335 while ((fwevt = mpi3mr_dequeue_fwevt(mrioc)))
336 mpi3mr_cancel_work(fwevt);
338 if (mrioc->current_event) {
339 fwevt = mrioc->current_event;
341 * Don't call cancel_work_sync() API for the
342 * fwevt work if the controller reset is
343 * get called as part of processing the
344 * same fwevt work (or) when worker thread is
345 * waiting for device add/remove APIs to complete.
346 * Otherwise we will see deadlock.
348 if (current_work() == &fwevt->work || fwevt->pending_at_sml) {
353 mpi3mr_cancel_work(fwevt);
358 * mpi3mr_invalidate_devhandles -Invalidate device handles
359 * @mrioc: Adapter instance reference
361 * Invalidate the device handles in the target device structures
362 * . Called post reset prior to reinitializing the controller.
366 void mpi3mr_invalidate_devhandles(struct mpi3mr_ioc *mrioc)
368 struct mpi3mr_tgt_dev *tgtdev;
369 struct mpi3mr_stgt_priv_data *tgt_priv;
371 list_for_each_entry(tgtdev, &mrioc->tgtdev_list, list) {
372 tgtdev->dev_handle = MPI3MR_INVALID_DEV_HANDLE;
373 if (tgtdev->starget && tgtdev->starget->hostdata) {
374 tgt_priv = tgtdev->starget->hostdata;
375 tgt_priv->dev_handle = MPI3MR_INVALID_DEV_HANDLE;
381 * mpi3mr_print_scmd - print individual SCSI command
383 * @data: Adapter instance reference
384 * @reserved: N/A. Currently not used
386 * Print the SCSI command details if it is in LLD scope.
388 * Return: true always.
390 static bool mpi3mr_print_scmd(struct request *rq,
391 void *data, bool reserved)
393 struct mpi3mr_ioc *mrioc = (struct mpi3mr_ioc *)data;
394 struct scsi_cmnd *scmd = blk_mq_rq_to_pdu(rq);
395 struct scmd_priv *priv = NULL;
398 priv = scsi_cmd_priv(scmd);
399 if (!priv->in_lld_scope)
402 ioc_info(mrioc, "%s :Host Tag = %d, qid = %d\n",
403 __func__, priv->host_tag, priv->req_q_idx + 1);
404 scsi_print_command(scmd);
412 * mpi3mr_flush_scmd - Flush individual SCSI command
414 * @data: Adapter instance reference
415 * @reserved: N/A. Currently not used
417 * Return the SCSI command to the upper layers if it is in LLD
420 * Return: true always.
423 static bool mpi3mr_flush_scmd(struct request *rq,
424 void *data, bool reserved)
426 struct mpi3mr_ioc *mrioc = (struct mpi3mr_ioc *)data;
427 struct scsi_cmnd *scmd = blk_mq_rq_to_pdu(rq);
428 struct scmd_priv *priv = NULL;
431 priv = scsi_cmd_priv(scmd);
432 if (!priv->in_lld_scope)
435 if (priv->meta_sg_valid)
436 dma_unmap_sg(&mrioc->pdev->dev, scsi_prot_sglist(scmd),
437 scsi_prot_sg_count(scmd), scmd->sc_data_direction);
438 mpi3mr_clear_scmd_priv(mrioc, scmd);
439 scsi_dma_unmap(scmd);
440 scmd->result = DID_RESET << 16;
441 scsi_print_command(scmd);
443 mrioc->flush_io_count++;
451 * mpi3mr_count_dev_pending - Count commands pending for a lun
453 * @data: SCSI device reference
456 * This is an iterator function called for each SCSI command in
457 * a host and if the command is pending in the LLD for the
458 * specific device(lun) then device specific pending I/O counter
459 * is updated in the device structure.
461 * Return: true always.
464 static bool mpi3mr_count_dev_pending(struct request *rq,
465 void *data, bool reserved)
467 struct scsi_device *sdev = (struct scsi_device *)data;
468 struct mpi3mr_sdev_priv_data *sdev_priv_data = sdev->hostdata;
469 struct scsi_cmnd *scmd = blk_mq_rq_to_pdu(rq);
470 struct scmd_priv *priv;
473 priv = scsi_cmd_priv(scmd);
474 if (!priv->in_lld_scope)
476 if (scmd->device == sdev)
477 sdev_priv_data->pend_count++;
485 * mpi3mr_count_tgt_pending - Count commands pending for target
487 * @data: SCSI target reference
490 * This is an iterator function called for each SCSI command in
491 * a host and if the command is pending in the LLD for the
492 * specific target then target specific pending I/O counter is
493 * updated in the target structure.
495 * Return: true always.
498 static bool mpi3mr_count_tgt_pending(struct request *rq,
499 void *data, bool reserved)
501 struct scsi_target *starget = (struct scsi_target *)data;
502 struct mpi3mr_stgt_priv_data *stgt_priv_data = starget->hostdata;
503 struct scsi_cmnd *scmd = blk_mq_rq_to_pdu(rq);
504 struct scmd_priv *priv;
507 priv = scsi_cmd_priv(scmd);
508 if (!priv->in_lld_scope)
510 if (scmd->device && (scsi_target(scmd->device) == starget))
511 stgt_priv_data->pend_count++;
519 * mpi3mr_flush_host_io - Flush host I/Os
520 * @mrioc: Adapter instance reference
522 * Flush all of the pending I/Os by calling
523 * blk_mq_tagset_busy_iter() for each possible tag. This is
524 * executed post controller reset
528 void mpi3mr_flush_host_io(struct mpi3mr_ioc *mrioc)
530 struct Scsi_Host *shost = mrioc->shost;
532 mrioc->flush_io_count = 0;
533 ioc_info(mrioc, "%s :Flushing Host I/O cmds post reset\n", __func__);
534 blk_mq_tagset_busy_iter(&shost->tag_set,
535 mpi3mr_flush_scmd, (void *)mrioc);
536 ioc_info(mrioc, "%s :Flushed %d Host I/O cmds\n", __func__,
537 mrioc->flush_io_count);
541 * mpi3mr_alloc_tgtdev - target device allocator
543 * Allocate target device instance and initialize the reference
546 * Return: target device instance.
548 static struct mpi3mr_tgt_dev *mpi3mr_alloc_tgtdev(void)
550 struct mpi3mr_tgt_dev *tgtdev;
552 tgtdev = kzalloc(sizeof(*tgtdev), GFP_ATOMIC);
555 kref_init(&tgtdev->ref_count);
560 * mpi3mr_tgtdev_add_to_list -Add tgtdevice to the list
561 * @mrioc: Adapter instance reference
562 * @tgtdev: Target device
564 * Add the target device to the target device list
568 static void mpi3mr_tgtdev_add_to_list(struct mpi3mr_ioc *mrioc,
569 struct mpi3mr_tgt_dev *tgtdev)
573 spin_lock_irqsave(&mrioc->tgtdev_lock, flags);
574 mpi3mr_tgtdev_get(tgtdev);
575 INIT_LIST_HEAD(&tgtdev->list);
576 list_add_tail(&tgtdev->list, &mrioc->tgtdev_list);
577 spin_unlock_irqrestore(&mrioc->tgtdev_lock, flags);
581 * mpi3mr_tgtdev_del_from_list -Delete tgtdevice from the list
582 * @mrioc: Adapter instance reference
583 * @tgtdev: Target device
585 * Remove the target device from the target device list
589 static void mpi3mr_tgtdev_del_from_list(struct mpi3mr_ioc *mrioc,
590 struct mpi3mr_tgt_dev *tgtdev)
594 spin_lock_irqsave(&mrioc->tgtdev_lock, flags);
595 if (!list_empty(&tgtdev->list)) {
596 list_del_init(&tgtdev->list);
597 mpi3mr_tgtdev_put(tgtdev);
599 spin_unlock_irqrestore(&mrioc->tgtdev_lock, flags);
603 * __mpi3mr_get_tgtdev_by_handle -Get tgtdev from device handle
604 * @mrioc: Adapter instance reference
605 * @handle: Device handle
607 * Accessor to retrieve target device from the device handle.
610 * Return: Target device reference.
612 static struct mpi3mr_tgt_dev *__mpi3mr_get_tgtdev_by_handle(
613 struct mpi3mr_ioc *mrioc, u16 handle)
615 struct mpi3mr_tgt_dev *tgtdev;
617 assert_spin_locked(&mrioc->tgtdev_lock);
618 list_for_each_entry(tgtdev, &mrioc->tgtdev_list, list)
619 if (tgtdev->dev_handle == handle)
624 mpi3mr_tgtdev_get(tgtdev);
629 * mpi3mr_get_tgtdev_by_handle -Get tgtdev from device handle
630 * @mrioc: Adapter instance reference
631 * @handle: Device handle
633 * Accessor to retrieve target device from the device handle.
636 * Return: Target device reference.
638 struct mpi3mr_tgt_dev *mpi3mr_get_tgtdev_by_handle(
639 struct mpi3mr_ioc *mrioc, u16 handle)
641 struct mpi3mr_tgt_dev *tgtdev;
644 spin_lock_irqsave(&mrioc->tgtdev_lock, flags);
645 tgtdev = __mpi3mr_get_tgtdev_by_handle(mrioc, handle);
646 spin_unlock_irqrestore(&mrioc->tgtdev_lock, flags);
651 * __mpi3mr_get_tgtdev_by_perst_id -Get tgtdev from persist ID
652 * @mrioc: Adapter instance reference
653 * @persist_id: Persistent ID
655 * Accessor to retrieve target device from the Persistent ID.
658 * Return: Target device reference.
660 static struct mpi3mr_tgt_dev *__mpi3mr_get_tgtdev_by_perst_id(
661 struct mpi3mr_ioc *mrioc, u16 persist_id)
663 struct mpi3mr_tgt_dev *tgtdev;
665 assert_spin_locked(&mrioc->tgtdev_lock);
666 list_for_each_entry(tgtdev, &mrioc->tgtdev_list, list)
667 if (tgtdev->perst_id == persist_id)
672 mpi3mr_tgtdev_get(tgtdev);
677 * mpi3mr_get_tgtdev_by_perst_id -Get tgtdev from persistent ID
678 * @mrioc: Adapter instance reference
679 * @persist_id: Persistent ID
681 * Accessor to retrieve target device from the Persistent ID.
684 * Return: Target device reference.
686 static struct mpi3mr_tgt_dev *mpi3mr_get_tgtdev_by_perst_id(
687 struct mpi3mr_ioc *mrioc, u16 persist_id)
689 struct mpi3mr_tgt_dev *tgtdev;
692 spin_lock_irqsave(&mrioc->tgtdev_lock, flags);
693 tgtdev = __mpi3mr_get_tgtdev_by_perst_id(mrioc, persist_id);
694 spin_unlock_irqrestore(&mrioc->tgtdev_lock, flags);
699 * __mpi3mr_get_tgtdev_from_tgtpriv -Get tgtdev from tgt private
700 * @mrioc: Adapter instance reference
701 * @tgt_priv: Target private data
703 * Accessor to return target device from the target private
704 * data. Non Lock version
706 * Return: Target device reference.
708 static struct mpi3mr_tgt_dev *__mpi3mr_get_tgtdev_from_tgtpriv(
709 struct mpi3mr_ioc *mrioc, struct mpi3mr_stgt_priv_data *tgt_priv)
711 struct mpi3mr_tgt_dev *tgtdev;
713 assert_spin_locked(&mrioc->tgtdev_lock);
714 tgtdev = tgt_priv->tgt_dev;
716 mpi3mr_tgtdev_get(tgtdev);
721 * mpi3mr_print_device_event_notice - print notice related to post processing of
722 * device event after controller reset.
724 * @mrioc: Adapter instance reference
725 * @device_add: true for device add event and false for device removal event
729 static void mpi3mr_print_device_event_notice(struct mpi3mr_ioc *mrioc,
732 ioc_notice(mrioc, "Device %s was in progress before the reset and\n",
733 (device_add ? "addition" : "removal"));
734 ioc_notice(mrioc, "completed after reset, verify whether the exposed devices\n");
735 ioc_notice(mrioc, "are matched with attached devices for correctness\n");
739 * mpi3mr_remove_tgtdev_from_host - Remove dev from upper layers
740 * @mrioc: Adapter instance reference
741 * @tgtdev: Target device structure
743 * Checks whether the device is exposed to upper layers and if it
744 * is then remove the device from upper layers by calling
745 * scsi_remove_target().
747 * Return: 0 on success, non zero on failure.
749 static void mpi3mr_remove_tgtdev_from_host(struct mpi3mr_ioc *mrioc,
750 struct mpi3mr_tgt_dev *tgtdev)
752 struct mpi3mr_stgt_priv_data *tgt_priv;
754 ioc_info(mrioc, "%s :Removing handle(0x%04x), wwid(0x%016llx)\n",
755 __func__, tgtdev->dev_handle, (unsigned long long)tgtdev->wwid);
756 if (tgtdev->starget && tgtdev->starget->hostdata) {
757 tgt_priv = tgtdev->starget->hostdata;
758 tgt_priv->dev_handle = MPI3MR_INVALID_DEV_HANDLE;
761 if (tgtdev->starget) {
762 if (mrioc->current_event)
763 mrioc->current_event->pending_at_sml = 1;
764 scsi_remove_target(&tgtdev->starget->dev);
765 tgtdev->host_exposed = 0;
766 if (mrioc->current_event) {
767 mrioc->current_event->pending_at_sml = 0;
768 if (mrioc->current_event->discard) {
769 mpi3mr_print_device_event_notice(mrioc, false);
774 ioc_info(mrioc, "%s :Removed handle(0x%04x), wwid(0x%016llx)\n",
775 __func__, tgtdev->dev_handle, (unsigned long long)tgtdev->wwid);
779 * mpi3mr_report_tgtdev_to_host - Expose device to upper layers
780 * @mrioc: Adapter instance reference
781 * @perst_id: Persistent ID of the device
783 * Checks whether the device can be exposed to upper layers and
784 * if it is not then expose the device to upper layers by
785 * calling scsi_scan_target().
787 * Return: 0 on success, non zero on failure.
789 static int mpi3mr_report_tgtdev_to_host(struct mpi3mr_ioc *mrioc,
793 struct mpi3mr_tgt_dev *tgtdev;
795 tgtdev = mpi3mr_get_tgtdev_by_perst_id(mrioc, perst_id);
800 if (tgtdev->is_hidden) {
804 if (!tgtdev->host_exposed && !mrioc->reset_in_progress) {
805 tgtdev->host_exposed = 1;
806 if (mrioc->current_event)
807 mrioc->current_event->pending_at_sml = 1;
808 scsi_scan_target(&mrioc->shost->shost_gendev, 0,
810 SCAN_WILD_CARD, SCSI_SCAN_INITIAL);
811 if (!tgtdev->starget)
812 tgtdev->host_exposed = 0;
813 if (mrioc->current_event) {
814 mrioc->current_event->pending_at_sml = 0;
815 if (mrioc->current_event->discard) {
816 mpi3mr_print_device_event_notice(mrioc, true);
823 mpi3mr_tgtdev_put(tgtdev);
829 * mpi3mr_change_queue_depth- Change QD callback handler
830 * @sdev: SCSI device reference
831 * @q_depth: Queue depth
833 * Validate and limit QD and call scsi_change_queue_depth.
835 * Return: return value of scsi_change_queue_depth
837 static int mpi3mr_change_queue_depth(struct scsi_device *sdev,
840 struct scsi_target *starget = scsi_target(sdev);
841 struct Scsi_Host *shost = dev_to_shost(&starget->dev);
844 if (!sdev->tagged_supported)
846 if (q_depth > shost->can_queue)
847 q_depth = shost->can_queue;
849 q_depth = MPI3MR_DEFAULT_SDEV_QD;
850 retval = scsi_change_queue_depth(sdev, q_depth);
856 * mpi3mr_update_sdev - Update SCSI device information
857 * @sdev: SCSI device reference
858 * @data: target device reference
860 * This is an iterator function called for each SCSI device in a
861 * target to update the target specific information into each
867 mpi3mr_update_sdev(struct scsi_device *sdev, void *data)
869 struct mpi3mr_tgt_dev *tgtdev;
871 tgtdev = (struct mpi3mr_tgt_dev *)data;
875 mpi3mr_change_queue_depth(sdev, tgtdev->q_depth);
876 switch (tgtdev->dev_type) {
877 case MPI3_DEVICE_DEVFORM_PCIE:
878 /*The block layer hw sector size = 512*/
879 if ((tgtdev->dev_spec.pcie_inf.dev_info &
880 MPI3_DEVICE0_PCIE_DEVICE_INFO_TYPE_MASK) ==
881 MPI3_DEVICE0_PCIE_DEVICE_INFO_TYPE_NVME_DEVICE) {
882 blk_queue_max_hw_sectors(sdev->request_queue,
883 tgtdev->dev_spec.pcie_inf.mdts / 512);
884 if (tgtdev->dev_spec.pcie_inf.pgsz == 0)
885 blk_queue_virt_boundary(sdev->request_queue,
886 ((1 << MPI3MR_DEFAULT_PGSZEXP) - 1));
888 blk_queue_virt_boundary(sdev->request_queue,
889 ((1 << tgtdev->dev_spec.pcie_inf.pgsz) - 1));
898 * mpi3mr_rfresh_tgtdevs - Refresh target device exposure
899 * @mrioc: Adapter instance reference
901 * This is executed post controller reset to identify any
902 * missing devices during reset and remove from the upper layers
903 * or expose any newly detected device to the upper layers.
908 void mpi3mr_rfresh_tgtdevs(struct mpi3mr_ioc *mrioc)
910 struct mpi3mr_tgt_dev *tgtdev, *tgtdev_next;
912 list_for_each_entry_safe(tgtdev, tgtdev_next, &mrioc->tgtdev_list,
914 if (tgtdev->dev_handle == MPI3MR_INVALID_DEV_HANDLE) {
915 dprint_reset(mrioc, "removing target device with perst_id(%d)\n",
917 if (tgtdev->host_exposed)
918 mpi3mr_remove_tgtdev_from_host(mrioc, tgtdev);
919 mpi3mr_tgtdev_del_from_list(mrioc, tgtdev);
920 mpi3mr_tgtdev_put(tgtdev);
925 list_for_each_entry(tgtdev, &mrioc->tgtdev_list, list) {
926 if ((tgtdev->dev_handle != MPI3MR_INVALID_DEV_HANDLE) &&
927 !tgtdev->is_hidden && !tgtdev->host_exposed)
928 mpi3mr_report_tgtdev_to_host(mrioc, tgtdev->perst_id);
933 * mpi3mr_update_tgtdev - DevStatusChange evt bottomhalf
934 * @mrioc: Adapter instance reference
935 * @tgtdev: Target device internal structure
936 * @dev_pg0: New device page0
938 * Update the information from the device page0 into the driver
939 * cached target device structure.
943 static void mpi3mr_update_tgtdev(struct mpi3mr_ioc *mrioc,
944 struct mpi3mr_tgt_dev *tgtdev, struct mpi3_device_page0 *dev_pg0)
947 struct mpi3mr_stgt_priv_data *scsi_tgt_priv_data;
950 tgtdev->perst_id = le16_to_cpu(dev_pg0->persistent_id);
951 tgtdev->dev_handle = le16_to_cpu(dev_pg0->dev_handle);
952 tgtdev->dev_type = dev_pg0->device_form;
953 tgtdev->encl_handle = le16_to_cpu(dev_pg0->enclosure_handle);
954 tgtdev->parent_handle = le16_to_cpu(dev_pg0->parent_dev_handle);
955 tgtdev->slot = le16_to_cpu(dev_pg0->slot);
956 tgtdev->q_depth = le16_to_cpu(dev_pg0->queue_depth);
957 tgtdev->wwid = le64_to_cpu(dev_pg0->wwid);
959 flags = le16_to_cpu(dev_pg0->flags);
960 tgtdev->is_hidden = (flags & MPI3_DEVICE0_FLAGS_HIDDEN);
962 if (tgtdev->starget && tgtdev->starget->hostdata) {
963 scsi_tgt_priv_data = (struct mpi3mr_stgt_priv_data *)
964 tgtdev->starget->hostdata;
965 scsi_tgt_priv_data->perst_id = tgtdev->perst_id;
966 scsi_tgt_priv_data->dev_handle = tgtdev->dev_handle;
967 scsi_tgt_priv_data->dev_type = tgtdev->dev_type;
970 switch (dev_pg0->access_status) {
971 case MPI3_DEVICE0_ASTATUS_NO_ERRORS:
972 case MPI3_DEVICE0_ASTATUS_PREPARE:
973 case MPI3_DEVICE0_ASTATUS_NEEDS_INITIALIZATION:
974 case MPI3_DEVICE0_ASTATUS_DEVICE_MISSING_DELAY:
977 tgtdev->is_hidden = 1;
981 switch (tgtdev->dev_type) {
982 case MPI3_DEVICE_DEVFORM_SAS_SATA:
984 struct mpi3_device0_sas_sata_format *sasinf =
985 &dev_pg0->device_specific.sas_sata_format;
986 u16 dev_info = le16_to_cpu(sasinf->device_info);
988 tgtdev->dev_spec.sas_sata_inf.dev_info = dev_info;
989 tgtdev->dev_spec.sas_sata_inf.sas_address =
990 le64_to_cpu(sasinf->sas_address);
991 if ((dev_info & MPI3_SAS_DEVICE_INFO_DEVICE_TYPE_MASK) !=
992 MPI3_SAS_DEVICE_INFO_DEVICE_TYPE_END_DEVICE)
993 tgtdev->is_hidden = 1;
994 else if (!(dev_info & (MPI3_SAS_DEVICE_INFO_STP_SATA_TARGET |
995 MPI3_SAS_DEVICE_INFO_SSP_TARGET)))
996 tgtdev->is_hidden = 1;
999 case MPI3_DEVICE_DEVFORM_PCIE:
1001 struct mpi3_device0_pcie_format *pcieinf =
1002 &dev_pg0->device_specific.pcie_format;
1003 u16 dev_info = le16_to_cpu(pcieinf->device_info);
1005 tgtdev->dev_spec.pcie_inf.dev_info = dev_info;
1006 tgtdev->dev_spec.pcie_inf.capb =
1007 le32_to_cpu(pcieinf->capabilities);
1008 tgtdev->dev_spec.pcie_inf.mdts = MPI3MR_DEFAULT_MDTS;
1010 tgtdev->dev_spec.pcie_inf.pgsz = 12;
1011 if (dev_pg0->access_status == MPI3_DEVICE0_ASTATUS_NO_ERRORS) {
1012 tgtdev->dev_spec.pcie_inf.mdts =
1013 le32_to_cpu(pcieinf->maximum_data_transfer_size);
1014 tgtdev->dev_spec.pcie_inf.pgsz = pcieinf->page_size;
1015 tgtdev->dev_spec.pcie_inf.reset_to =
1016 max_t(u8, pcieinf->controller_reset_to,
1017 MPI3MR_INTADMCMD_TIMEOUT);
1018 tgtdev->dev_spec.pcie_inf.abort_to =
1019 max_t(u8, pcieinf->nvme_abort_to,
1020 MPI3MR_INTADMCMD_TIMEOUT);
1022 if (tgtdev->dev_spec.pcie_inf.mdts > (1024 * 1024))
1023 tgtdev->dev_spec.pcie_inf.mdts = (1024 * 1024);
1024 if (((dev_info & MPI3_DEVICE0_PCIE_DEVICE_INFO_TYPE_MASK) !=
1025 MPI3_DEVICE0_PCIE_DEVICE_INFO_TYPE_NVME_DEVICE) &&
1026 ((dev_info & MPI3_DEVICE0_PCIE_DEVICE_INFO_TYPE_MASK) !=
1027 MPI3_DEVICE0_PCIE_DEVICE_INFO_TYPE_SCSI_DEVICE))
1028 tgtdev->is_hidden = 1;
1031 prot_mask = scsi_host_get_prot(mrioc->shost);
1032 if (prot_mask & SHOST_DIX_TYPE0_PROTECTION) {
1033 scsi_host_set_prot(mrioc->shost, prot_mask & 0x77);
1035 "%s : Disabling DIX0 prot capability\n", __func__);
1037 "because HBA does not support DIX0 operation on NVME drives\n");
1041 case MPI3_DEVICE_DEVFORM_VD:
1043 struct mpi3_device0_vd_format *vdinf =
1044 &dev_pg0->device_specific.vd_format;
1046 tgtdev->dev_spec.vol_inf.state = vdinf->vd_state;
1047 if (vdinf->vd_state == MPI3_DEVICE0_VD_STATE_OFFLINE)
1048 tgtdev->is_hidden = 1;
1057 * mpi3mr_devstatuschg_evt_bh - DevStatusChange evt bottomhalf
1058 * @mrioc: Adapter instance reference
1059 * @fwevt: Firmware event information.
1061 * Process Device status Change event and based on device's new
1062 * information, either expose the device to the upper layers, or
1063 * remove the device from upper layers.
1067 static void mpi3mr_devstatuschg_evt_bh(struct mpi3mr_ioc *mrioc,
1068 struct mpi3mr_fwevt *fwevt)
1071 u8 uhide = 0, delete = 0, cleanup = 0;
1072 struct mpi3mr_tgt_dev *tgtdev = NULL;
1073 struct mpi3_event_data_device_status_change *evtdata =
1074 (struct mpi3_event_data_device_status_change *)fwevt->event_data;
1076 dev_handle = le16_to_cpu(evtdata->dev_handle);
1078 "%s :device status change: handle(0x%04x): reason code(0x%x)\n",
1079 __func__, dev_handle, evtdata->reason_code);
1080 switch (evtdata->reason_code) {
1081 case MPI3_EVENT_DEV_STAT_RC_HIDDEN:
1084 case MPI3_EVENT_DEV_STAT_RC_NOT_HIDDEN:
1087 case MPI3_EVENT_DEV_STAT_RC_VD_NOT_RESPONDING:
1092 ioc_info(mrioc, "%s :Unhandled reason code(0x%x)\n", __func__,
1093 evtdata->reason_code);
1097 tgtdev = mpi3mr_get_tgtdev_by_handle(mrioc, dev_handle);
1101 tgtdev->is_hidden = 0;
1102 if (!tgtdev->host_exposed)
1103 mpi3mr_report_tgtdev_to_host(mrioc, tgtdev->perst_id);
1105 if (tgtdev->starget && tgtdev->starget->hostdata) {
1107 mpi3mr_remove_tgtdev_from_host(mrioc, tgtdev);
1110 mpi3mr_tgtdev_del_from_list(mrioc, tgtdev);
1111 mpi3mr_tgtdev_put(tgtdev);
1116 mpi3mr_tgtdev_put(tgtdev);
1120 * mpi3mr_devinfochg_evt_bh - DeviceInfoChange evt bottomhalf
1121 * @mrioc: Adapter instance reference
1122 * @dev_pg0: New device page0
1124 * Process Device Info Change event and based on device's new
1125 * information, either expose the device to the upper layers, or
1126 * remove the device from upper layers or update the details of
1131 static void mpi3mr_devinfochg_evt_bh(struct mpi3mr_ioc *mrioc,
1132 struct mpi3_device_page0 *dev_pg0)
1134 struct mpi3mr_tgt_dev *tgtdev = NULL;
1135 u16 dev_handle = 0, perst_id = 0;
1137 perst_id = le16_to_cpu(dev_pg0->persistent_id);
1138 dev_handle = le16_to_cpu(dev_pg0->dev_handle);
1140 "%s :Device info change: handle(0x%04x): persist_id(0x%x)\n",
1141 __func__, dev_handle, perst_id);
1142 tgtdev = mpi3mr_get_tgtdev_by_handle(mrioc, dev_handle);
1145 mpi3mr_update_tgtdev(mrioc, tgtdev, dev_pg0);
1146 if (!tgtdev->is_hidden && !tgtdev->host_exposed)
1147 mpi3mr_report_tgtdev_to_host(mrioc, perst_id);
1148 if (tgtdev->is_hidden && tgtdev->host_exposed)
1149 mpi3mr_remove_tgtdev_from_host(mrioc, tgtdev);
1150 if (!tgtdev->is_hidden && tgtdev->host_exposed && tgtdev->starget)
1151 starget_for_each_device(tgtdev->starget, (void *)tgtdev,
1152 mpi3mr_update_sdev);
1155 mpi3mr_tgtdev_put(tgtdev);
1159 * mpi3mr_sastopochg_evt_debug - SASTopoChange details
1160 * @mrioc: Adapter instance reference
1161 * @event_data: SAS topology change list event data
1163 * Prints information about the SAS topology change event.
1168 mpi3mr_sastopochg_evt_debug(struct mpi3mr_ioc *mrioc,
1169 struct mpi3_event_data_sas_topology_change_list *event_data)
1173 u8 reason_code, phy_number;
1174 char *status_str = NULL;
1175 u8 link_rate, prev_link_rate;
1177 switch (event_data->exp_status) {
1178 case MPI3_EVENT_SAS_TOPO_ES_NOT_RESPONDING:
1179 status_str = "remove";
1181 case MPI3_EVENT_SAS_TOPO_ES_RESPONDING:
1182 status_str = "responding";
1184 case MPI3_EVENT_SAS_TOPO_ES_DELAY_NOT_RESPONDING:
1185 status_str = "remove delay";
1187 case MPI3_EVENT_SAS_TOPO_ES_NO_EXPANDER:
1188 status_str = "direct attached";
1191 status_str = "unknown status";
1194 ioc_info(mrioc, "%s :sas topology change: (%s)\n",
1195 __func__, status_str);
1197 "%s :\texpander_handle(0x%04x), enclosure_handle(0x%04x) start_phy(%02d), num_entries(%d)\n",
1198 __func__, le16_to_cpu(event_data->expander_dev_handle),
1199 le16_to_cpu(event_data->enclosure_handle),
1200 event_data->start_phy_num, event_data->num_entries);
1201 for (i = 0; i < event_data->num_entries; i++) {
1202 handle = le16_to_cpu(event_data->phy_entry[i].attached_dev_handle);
1205 phy_number = event_data->start_phy_num + i;
1206 reason_code = event_data->phy_entry[i].status &
1207 MPI3_EVENT_SAS_TOPO_PHY_RC_MASK;
1208 switch (reason_code) {
1209 case MPI3_EVENT_SAS_TOPO_PHY_RC_TARG_NOT_RESPONDING:
1210 status_str = "target remove";
1212 case MPI3_EVENT_SAS_TOPO_PHY_RC_DELAY_NOT_RESPONDING:
1213 status_str = "delay target remove";
1215 case MPI3_EVENT_SAS_TOPO_PHY_RC_PHY_CHANGED:
1216 status_str = "link status change";
1218 case MPI3_EVENT_SAS_TOPO_PHY_RC_NO_CHANGE:
1219 status_str = "link status no change";
1221 case MPI3_EVENT_SAS_TOPO_PHY_RC_RESPONDING:
1222 status_str = "target responding";
1225 status_str = "unknown";
1228 link_rate = event_data->phy_entry[i].link_rate >> 4;
1229 prev_link_rate = event_data->phy_entry[i].link_rate & 0xF;
1231 "%s :\tphy(%02d), attached_handle(0x%04x): %s: link rate: new(0x%02x), old(0x%02x)\n",
1232 __func__, phy_number, handle, status_str, link_rate,
1238 * mpi3mr_sastopochg_evt_bh - SASTopologyChange evt bottomhalf
1239 * @mrioc: Adapter instance reference
1240 * @fwevt: Firmware event reference
1242 * Prints information about the SAS topology change event and
1243 * for "not responding" event code, removes the device from the
1248 static void mpi3mr_sastopochg_evt_bh(struct mpi3mr_ioc *mrioc,
1249 struct mpi3mr_fwevt *fwevt)
1251 struct mpi3_event_data_sas_topology_change_list *event_data =
1252 (struct mpi3_event_data_sas_topology_change_list *)fwevt->event_data;
1256 struct mpi3mr_tgt_dev *tgtdev = NULL;
1258 mpi3mr_sastopochg_evt_debug(mrioc, event_data);
1260 for (i = 0; i < event_data->num_entries; i++) {
1263 handle = le16_to_cpu(event_data->phy_entry[i].attached_dev_handle);
1266 tgtdev = mpi3mr_get_tgtdev_by_handle(mrioc, handle);
1270 reason_code = event_data->phy_entry[i].status &
1271 MPI3_EVENT_SAS_TOPO_PHY_RC_MASK;
1273 switch (reason_code) {
1274 case MPI3_EVENT_SAS_TOPO_PHY_RC_TARG_NOT_RESPONDING:
1275 if (tgtdev->host_exposed)
1276 mpi3mr_remove_tgtdev_from_host(mrioc, tgtdev);
1277 mpi3mr_tgtdev_del_from_list(mrioc, tgtdev);
1278 mpi3mr_tgtdev_put(tgtdev);
1284 mpi3mr_tgtdev_put(tgtdev);
1289 * mpi3mr_pcietopochg_evt_debug - PCIeTopoChange details
1290 * @mrioc: Adapter instance reference
1291 * @event_data: PCIe topology change list event data
1293 * Prints information about the PCIe topology change event.
1298 mpi3mr_pcietopochg_evt_debug(struct mpi3mr_ioc *mrioc,
1299 struct mpi3_event_data_pcie_topology_change_list *event_data)
1305 char *status_str = NULL;
1306 u8 link_rate, prev_link_rate;
1308 switch (event_data->switch_status) {
1309 case MPI3_EVENT_PCIE_TOPO_SS_NOT_RESPONDING:
1310 status_str = "remove";
1312 case MPI3_EVENT_PCIE_TOPO_SS_RESPONDING:
1313 status_str = "responding";
1315 case MPI3_EVENT_PCIE_TOPO_SS_DELAY_NOT_RESPONDING:
1316 status_str = "remove delay";
1318 case MPI3_EVENT_PCIE_TOPO_SS_NO_PCIE_SWITCH:
1319 status_str = "direct attached";
1322 status_str = "unknown status";
1325 ioc_info(mrioc, "%s :pcie topology change: (%s)\n",
1326 __func__, status_str);
1328 "%s :\tswitch_handle(0x%04x), enclosure_handle(0x%04x) start_port(%02d), num_entries(%d)\n",
1329 __func__, le16_to_cpu(event_data->switch_dev_handle),
1330 le16_to_cpu(event_data->enclosure_handle),
1331 event_data->start_port_num, event_data->num_entries);
1332 for (i = 0; i < event_data->num_entries; i++) {
1334 le16_to_cpu(event_data->port_entry[i].attached_dev_handle);
1337 port_number = event_data->start_port_num + i;
1338 reason_code = event_data->port_entry[i].port_status;
1339 switch (reason_code) {
1340 case MPI3_EVENT_PCIE_TOPO_PS_NOT_RESPONDING:
1341 status_str = "target remove";
1343 case MPI3_EVENT_PCIE_TOPO_PS_DELAY_NOT_RESPONDING:
1344 status_str = "delay target remove";
1346 case MPI3_EVENT_PCIE_TOPO_PS_PORT_CHANGED:
1347 status_str = "link status change";
1349 case MPI3_EVENT_PCIE_TOPO_PS_NO_CHANGE:
1350 status_str = "link status no change";
1352 case MPI3_EVENT_PCIE_TOPO_PS_RESPONDING:
1353 status_str = "target responding";
1356 status_str = "unknown";
1359 link_rate = event_data->port_entry[i].current_port_info &
1360 MPI3_EVENT_PCIE_TOPO_PI_RATE_MASK;
1361 prev_link_rate = event_data->port_entry[i].previous_port_info &
1362 MPI3_EVENT_PCIE_TOPO_PI_RATE_MASK;
1364 "%s :\tport(%02d), attached_handle(0x%04x): %s: link rate: new(0x%02x), old(0x%02x)\n",
1365 __func__, port_number, handle, status_str, link_rate,
1371 * mpi3mr_pcietopochg_evt_bh - PCIeTopologyChange evt bottomhalf
1372 * @mrioc: Adapter instance reference
1373 * @fwevt: Firmware event reference
1375 * Prints information about the PCIe topology change event and
1376 * for "not responding" event code, removes the device from the
1381 static void mpi3mr_pcietopochg_evt_bh(struct mpi3mr_ioc *mrioc,
1382 struct mpi3mr_fwevt *fwevt)
1384 struct mpi3_event_data_pcie_topology_change_list *event_data =
1385 (struct mpi3_event_data_pcie_topology_change_list *)fwevt->event_data;
1389 struct mpi3mr_tgt_dev *tgtdev = NULL;
1391 mpi3mr_pcietopochg_evt_debug(mrioc, event_data);
1393 for (i = 0; i < event_data->num_entries; i++) {
1397 le16_to_cpu(event_data->port_entry[i].attached_dev_handle);
1400 tgtdev = mpi3mr_get_tgtdev_by_handle(mrioc, handle);
1404 reason_code = event_data->port_entry[i].port_status;
1406 switch (reason_code) {
1407 case MPI3_EVENT_PCIE_TOPO_PS_NOT_RESPONDING:
1408 if (tgtdev->host_exposed)
1409 mpi3mr_remove_tgtdev_from_host(mrioc, tgtdev);
1410 mpi3mr_tgtdev_del_from_list(mrioc, tgtdev);
1411 mpi3mr_tgtdev_put(tgtdev);
1417 mpi3mr_tgtdev_put(tgtdev);
1422 * mpi3mr_logdata_evt_bh - Log data event bottomhalf
1423 * @mrioc: Adapter instance reference
1424 * @fwevt: Firmware event reference
1426 * Extracts the event data and calls application interfacing
1427 * function to process the event further.
1431 static void mpi3mr_logdata_evt_bh(struct mpi3mr_ioc *mrioc,
1432 struct mpi3mr_fwevt *fwevt)
1434 mpi3mr_app_save_logdata(mrioc, fwevt->event_data,
1435 fwevt->event_data_size);
1439 * mpi3mr_fwevt_bh - Firmware event bottomhalf handler
1440 * @mrioc: Adapter instance reference
1441 * @fwevt: Firmware event reference
1443 * Identifies the firmware event and calls corresponding bottomg
1444 * half handler and sends event acknowledgment if required.
1448 static void mpi3mr_fwevt_bh(struct mpi3mr_ioc *mrioc,
1449 struct mpi3mr_fwevt *fwevt)
1451 mpi3mr_fwevt_del_from_list(mrioc, fwevt);
1452 mrioc->current_event = fwevt;
1454 if (mrioc->stop_drv_processing)
1457 if (!fwevt->process_evt)
1460 switch (fwevt->event_id) {
1461 case MPI3_EVENT_DEVICE_ADDED:
1463 struct mpi3_device_page0 *dev_pg0 =
1464 (struct mpi3_device_page0 *)fwevt->event_data;
1465 mpi3mr_report_tgtdev_to_host(mrioc,
1466 le16_to_cpu(dev_pg0->persistent_id));
1469 case MPI3_EVENT_DEVICE_INFO_CHANGED:
1471 mpi3mr_devinfochg_evt_bh(mrioc,
1472 (struct mpi3_device_page0 *)fwevt->event_data);
1475 case MPI3_EVENT_DEVICE_STATUS_CHANGE:
1477 mpi3mr_devstatuschg_evt_bh(mrioc, fwevt);
1480 case MPI3_EVENT_SAS_TOPOLOGY_CHANGE_LIST:
1482 mpi3mr_sastopochg_evt_bh(mrioc, fwevt);
1485 case MPI3_EVENT_PCIE_TOPOLOGY_CHANGE_LIST:
1487 mpi3mr_pcietopochg_evt_bh(mrioc, fwevt);
1490 case MPI3_EVENT_LOG_DATA:
1492 mpi3mr_logdata_evt_bh(mrioc, fwevt);
1500 if (fwevt->send_ack)
1501 mpi3mr_process_event_ack(mrioc, fwevt->event_id,
1504 /* Put fwevt reference count to neutralize kref_init increment */
1505 mpi3mr_fwevt_put(fwevt);
1506 mrioc->current_event = NULL;
1510 * mpi3mr_fwevt_worker - Firmware event worker
1511 * @work: Work struct containing firmware event
1513 * Extracts the firmware event and calls mpi3mr_fwevt_bh.
1517 static void mpi3mr_fwevt_worker(struct work_struct *work)
1519 struct mpi3mr_fwevt *fwevt = container_of(work, struct mpi3mr_fwevt,
1521 mpi3mr_fwevt_bh(fwevt->mrioc, fwevt);
1523 * Put fwevt reference count after
1524 * dequeuing it from worker queue
1526 mpi3mr_fwevt_put(fwevt);
1530 * mpi3mr_create_tgtdev - Create and add a target device
1531 * @mrioc: Adapter instance reference
1532 * @dev_pg0: Device Page 0 data
1534 * If the device specified by the device page 0 data is not
1535 * present in the driver's internal list, allocate the memory
1536 * for the device, populate the data and add to the list, else
1537 * update the device data. The key is persistent ID.
1539 * Return: 0 on success, -ENOMEM on memory allocation failure
1541 static int mpi3mr_create_tgtdev(struct mpi3mr_ioc *mrioc,
1542 struct mpi3_device_page0 *dev_pg0)
1545 struct mpi3mr_tgt_dev *tgtdev = NULL;
1548 perst_id = le16_to_cpu(dev_pg0->persistent_id);
1549 tgtdev = mpi3mr_get_tgtdev_by_perst_id(mrioc, perst_id);
1551 mpi3mr_update_tgtdev(mrioc, tgtdev, dev_pg0);
1552 mpi3mr_tgtdev_put(tgtdev);
1554 tgtdev = mpi3mr_alloc_tgtdev();
1557 mpi3mr_update_tgtdev(mrioc, tgtdev, dev_pg0);
1558 mpi3mr_tgtdev_add_to_list(mrioc, tgtdev);
1565 * mpi3mr_flush_delayed_cmd_lists - Flush pending commands
1566 * @mrioc: Adapter instance reference
1568 * Flush pending commands in the delayed lists due to a
1569 * controller reset or driver removal as a cleanup.
1573 void mpi3mr_flush_delayed_cmd_lists(struct mpi3mr_ioc *mrioc)
1575 struct delayed_dev_rmhs_node *_rmhs_node;
1576 struct delayed_evt_ack_node *_evtack_node;
1578 dprint_reset(mrioc, "flushing delayed dev_remove_hs commands\n");
1579 while (!list_empty(&mrioc->delayed_rmhs_list)) {
1580 _rmhs_node = list_entry(mrioc->delayed_rmhs_list.next,
1581 struct delayed_dev_rmhs_node, list);
1582 list_del(&_rmhs_node->list);
1585 dprint_reset(mrioc, "flushing delayed event ack commands\n");
1586 while (!list_empty(&mrioc->delayed_evtack_cmds_list)) {
1587 _evtack_node = list_entry(mrioc->delayed_evtack_cmds_list.next,
1588 struct delayed_evt_ack_node, list);
1589 list_del(&_evtack_node->list);
1590 kfree(_evtack_node);
1595 * mpi3mr_dev_rmhs_complete_iou - Device removal IOUC completion
1596 * @mrioc: Adapter instance reference
1597 * @drv_cmd: Internal command tracker
1599 * Issues a target reset TM to the firmware from the device
1600 * removal TM pend list or retry the removal handshake sequence
1601 * based on the IOU control request IOC status.
1605 static void mpi3mr_dev_rmhs_complete_iou(struct mpi3mr_ioc *mrioc,
1606 struct mpi3mr_drv_cmd *drv_cmd)
1608 u16 cmd_idx = drv_cmd->host_tag - MPI3MR_HOSTTAG_DEVRMCMD_MIN;
1609 struct delayed_dev_rmhs_node *delayed_dev_rmhs = NULL;
1611 if (drv_cmd->state & MPI3MR_CMD_RESET)
1615 "%s :dev_rmhs_iouctrl_complete:handle(0x%04x), ioc_status(0x%04x), loginfo(0x%08x)\n",
1616 __func__, drv_cmd->dev_handle, drv_cmd->ioc_status,
1617 drv_cmd->ioc_loginfo);
1618 if (drv_cmd->ioc_status != MPI3_IOCSTATUS_SUCCESS) {
1619 if (drv_cmd->retry_count < MPI3MR_DEV_RMHS_RETRY_COUNT) {
1620 drv_cmd->retry_count++;
1622 "%s :dev_rmhs_iouctrl_complete: handle(0x%04x)retrying handshake retry=%d\n",
1623 __func__, drv_cmd->dev_handle,
1624 drv_cmd->retry_count);
1625 mpi3mr_dev_rmhs_send_tm(mrioc, drv_cmd->dev_handle,
1626 drv_cmd, drv_cmd->iou_rc);
1630 "%s :dev removal handshake failed after all retries: handle(0x%04x)\n",
1631 __func__, drv_cmd->dev_handle);
1634 "%s :dev removal handshake completed successfully: handle(0x%04x)\n",
1635 __func__, drv_cmd->dev_handle);
1636 clear_bit(drv_cmd->dev_handle, mrioc->removepend_bitmap);
1639 if (!list_empty(&mrioc->delayed_rmhs_list)) {
1640 delayed_dev_rmhs = list_entry(mrioc->delayed_rmhs_list.next,
1641 struct delayed_dev_rmhs_node, list);
1642 drv_cmd->dev_handle = delayed_dev_rmhs->handle;
1643 drv_cmd->retry_count = 0;
1644 drv_cmd->iou_rc = delayed_dev_rmhs->iou_rc;
1646 "%s :dev_rmhs_iouctrl_complete: processing delayed TM: handle(0x%04x)\n",
1647 __func__, drv_cmd->dev_handle);
1648 mpi3mr_dev_rmhs_send_tm(mrioc, drv_cmd->dev_handle, drv_cmd,
1650 list_del(&delayed_dev_rmhs->list);
1651 kfree(delayed_dev_rmhs);
1656 drv_cmd->state = MPI3MR_CMD_NOTUSED;
1657 drv_cmd->callback = NULL;
1658 drv_cmd->retry_count = 0;
1659 drv_cmd->dev_handle = MPI3MR_INVALID_DEV_HANDLE;
1660 clear_bit(cmd_idx, mrioc->devrem_bitmap);
1664 * mpi3mr_dev_rmhs_complete_tm - Device removal TM completion
1665 * @mrioc: Adapter instance reference
1666 * @drv_cmd: Internal command tracker
1668 * Issues a target reset TM to the firmware from the device
1669 * removal TM pend list or issue IO unit control request as
1670 * part of device removal or hidden acknowledgment handshake.
1674 static void mpi3mr_dev_rmhs_complete_tm(struct mpi3mr_ioc *mrioc,
1675 struct mpi3mr_drv_cmd *drv_cmd)
1677 struct mpi3_iounit_control_request iou_ctrl;
1678 u16 cmd_idx = drv_cmd->host_tag - MPI3MR_HOSTTAG_DEVRMCMD_MIN;
1679 struct mpi3_scsi_task_mgmt_reply *tm_reply = NULL;
1682 if (drv_cmd->state & MPI3MR_CMD_RESET)
1685 if (drv_cmd->state & MPI3MR_CMD_REPLY_VALID)
1686 tm_reply = (struct mpi3_scsi_task_mgmt_reply *)drv_cmd->reply;
1690 "dev_rmhs_tr_complete:handle(0x%04x), ioc_status(0x%04x), loginfo(0x%08x), term_count(%d)\n",
1691 mrioc->name, drv_cmd->dev_handle, drv_cmd->ioc_status,
1692 drv_cmd->ioc_loginfo,
1693 le32_to_cpu(tm_reply->termination_count));
1695 pr_info(IOCNAME "Issuing IOU CTL: handle(0x%04x) dev_rmhs idx(%d)\n",
1696 mrioc->name, drv_cmd->dev_handle, cmd_idx);
1698 memset(&iou_ctrl, 0, sizeof(iou_ctrl));
1700 drv_cmd->state = MPI3MR_CMD_PENDING;
1701 drv_cmd->is_waiting = 0;
1702 drv_cmd->callback = mpi3mr_dev_rmhs_complete_iou;
1703 iou_ctrl.operation = drv_cmd->iou_rc;
1704 iou_ctrl.param16[0] = cpu_to_le16(drv_cmd->dev_handle);
1705 iou_ctrl.host_tag = cpu_to_le16(drv_cmd->host_tag);
1706 iou_ctrl.function = MPI3_FUNCTION_IO_UNIT_CONTROL;
1708 retval = mpi3mr_admin_request_post(mrioc, &iou_ctrl, sizeof(iou_ctrl),
1711 pr_err(IOCNAME "Issue DevRmHsTMIOUCTL: Admin post failed\n",
1718 drv_cmd->state = MPI3MR_CMD_NOTUSED;
1719 drv_cmd->callback = NULL;
1720 drv_cmd->dev_handle = MPI3MR_INVALID_DEV_HANDLE;
1721 drv_cmd->retry_count = 0;
1722 clear_bit(cmd_idx, mrioc->devrem_bitmap);
1726 * mpi3mr_dev_rmhs_send_tm - Issue TM for device removal
1727 * @mrioc: Adapter instance reference
1728 * @handle: Device handle
1729 * @cmdparam: Internal command tracker
1730 * @iou_rc: IO unit reason code
1732 * Issues a target reset TM to the firmware or add it to a pend
1733 * list as part of device removal or hidden acknowledgment
1738 static void mpi3mr_dev_rmhs_send_tm(struct mpi3mr_ioc *mrioc, u16 handle,
1739 struct mpi3mr_drv_cmd *cmdparam, u8 iou_rc)
1741 struct mpi3_scsi_task_mgmt_request tm_req;
1743 u16 cmd_idx = MPI3MR_NUM_DEVRMCMD;
1745 struct mpi3mr_drv_cmd *drv_cmd = cmdparam;
1746 struct delayed_dev_rmhs_node *delayed_dev_rmhs = NULL;
1751 cmd_idx = find_first_zero_bit(mrioc->devrem_bitmap,
1752 MPI3MR_NUM_DEVRMCMD);
1753 if (cmd_idx < MPI3MR_NUM_DEVRMCMD) {
1754 if (!test_and_set_bit(cmd_idx, mrioc->devrem_bitmap))
1756 cmd_idx = MPI3MR_NUM_DEVRMCMD;
1758 } while (retrycount--);
1760 if (cmd_idx >= MPI3MR_NUM_DEVRMCMD) {
1761 delayed_dev_rmhs = kzalloc(sizeof(*delayed_dev_rmhs),
1763 if (!delayed_dev_rmhs)
1765 INIT_LIST_HEAD(&delayed_dev_rmhs->list);
1766 delayed_dev_rmhs->handle = handle;
1767 delayed_dev_rmhs->iou_rc = iou_rc;
1768 list_add_tail(&delayed_dev_rmhs->list,
1769 &mrioc->delayed_rmhs_list);
1770 ioc_info(mrioc, "%s :DevRmHs: tr:handle(0x%04x) is postponed\n",
1774 drv_cmd = &mrioc->dev_rmhs_cmds[cmd_idx];
1777 cmd_idx = drv_cmd->host_tag - MPI3MR_HOSTTAG_DEVRMCMD_MIN;
1779 "%s :Issuing TR TM: for devhandle 0x%04x with dev_rmhs %d\n",
1780 __func__, handle, cmd_idx);
1782 memset(&tm_req, 0, sizeof(tm_req));
1783 if (drv_cmd->state & MPI3MR_CMD_PENDING) {
1784 ioc_err(mrioc, "%s :Issue TM: Command is in use\n", __func__);
1787 drv_cmd->state = MPI3MR_CMD_PENDING;
1788 drv_cmd->is_waiting = 0;
1789 drv_cmd->callback = mpi3mr_dev_rmhs_complete_tm;
1790 drv_cmd->dev_handle = handle;
1791 drv_cmd->iou_rc = iou_rc;
1792 tm_req.dev_handle = cpu_to_le16(handle);
1793 tm_req.task_type = MPI3_SCSITASKMGMT_TASKTYPE_TARGET_RESET;
1794 tm_req.host_tag = cpu_to_le16(drv_cmd->host_tag);
1795 tm_req.task_host_tag = cpu_to_le16(MPI3MR_HOSTTAG_INVALID);
1796 tm_req.function = MPI3_FUNCTION_SCSI_TASK_MGMT;
1798 set_bit(handle, mrioc->removepend_bitmap);
1799 retval = mpi3mr_admin_request_post(mrioc, &tm_req, sizeof(tm_req), 1);
1801 ioc_err(mrioc, "%s :Issue DevRmHsTM: Admin Post failed\n",
1808 drv_cmd->state = MPI3MR_CMD_NOTUSED;
1809 drv_cmd->callback = NULL;
1810 drv_cmd->dev_handle = MPI3MR_INVALID_DEV_HANDLE;
1811 drv_cmd->retry_count = 0;
1812 clear_bit(cmd_idx, mrioc->devrem_bitmap);
1816 * mpi3mr_complete_evt_ack - event ack request completion
1817 * @mrioc: Adapter instance reference
1818 * @drv_cmd: Internal command tracker
1820 * This is the completion handler for non blocking event
1821 * acknowledgment sent to the firmware and this will issue any
1822 * pending event acknowledgment request.
1826 static void mpi3mr_complete_evt_ack(struct mpi3mr_ioc *mrioc,
1827 struct mpi3mr_drv_cmd *drv_cmd)
1829 u16 cmd_idx = drv_cmd->host_tag - MPI3MR_HOSTTAG_EVTACKCMD_MIN;
1830 struct delayed_evt_ack_node *delayed_evtack = NULL;
1832 if (drv_cmd->state & MPI3MR_CMD_RESET)
1835 if (drv_cmd->ioc_status != MPI3_IOCSTATUS_SUCCESS) {
1836 dprint_event_th(mrioc,
1837 "immediate event ack failed with ioc_status(0x%04x) log_info(0x%08x)\n",
1838 (drv_cmd->ioc_status & MPI3_IOCSTATUS_STATUS_MASK),
1839 drv_cmd->ioc_loginfo);
1842 if (!list_empty(&mrioc->delayed_evtack_cmds_list)) {
1844 list_entry(mrioc->delayed_evtack_cmds_list.next,
1845 struct delayed_evt_ack_node, list);
1846 mpi3mr_send_event_ack(mrioc, delayed_evtack->event, drv_cmd,
1847 delayed_evtack->event_ctx);
1848 list_del(&delayed_evtack->list);
1849 kfree(delayed_evtack);
1853 drv_cmd->state = MPI3MR_CMD_NOTUSED;
1854 drv_cmd->callback = NULL;
1855 clear_bit(cmd_idx, mrioc->evtack_cmds_bitmap);
1859 * mpi3mr_send_event_ack - Issue event acknwoledgment request
1860 * @mrioc: Adapter instance reference
1861 * @event: MPI3 event id
1862 * @cmdparam: Internal command tracker
1863 * @event_ctx: event context
1865 * Issues event acknowledgment request to the firmware if there
1866 * is a free command to send the event ack else it to a pend
1867 * list so that it will be processed on a completion of a prior
1868 * event acknowledgment .
1872 static void mpi3mr_send_event_ack(struct mpi3mr_ioc *mrioc, u8 event,
1873 struct mpi3mr_drv_cmd *cmdparam, u32 event_ctx)
1875 struct mpi3_event_ack_request evtack_req;
1878 u16 cmd_idx = MPI3MR_NUM_EVTACKCMD;
1879 struct mpi3mr_drv_cmd *drv_cmd = cmdparam;
1880 struct delayed_evt_ack_node *delayed_evtack = NULL;
1883 dprint_event_th(mrioc,
1884 "sending delayed event ack in the top half for event(0x%02x), event_ctx(0x%08x)\n",
1888 dprint_event_th(mrioc,
1889 "sending event ack in the top half for event(0x%02x), event_ctx(0x%08x)\n",
1892 cmd_idx = find_first_zero_bit(mrioc->evtack_cmds_bitmap,
1893 MPI3MR_NUM_EVTACKCMD);
1894 if (cmd_idx < MPI3MR_NUM_EVTACKCMD) {
1895 if (!test_and_set_bit(cmd_idx,
1896 mrioc->evtack_cmds_bitmap))
1898 cmd_idx = MPI3MR_NUM_EVTACKCMD;
1900 } while (retrycount--);
1902 if (cmd_idx >= MPI3MR_NUM_EVTACKCMD) {
1903 delayed_evtack = kzalloc(sizeof(*delayed_evtack),
1905 if (!delayed_evtack)
1907 INIT_LIST_HEAD(&delayed_evtack->list);
1908 delayed_evtack->event = event;
1909 delayed_evtack->event_ctx = event_ctx;
1910 list_add_tail(&delayed_evtack->list,
1911 &mrioc->delayed_evtack_cmds_list);
1912 dprint_event_th(mrioc,
1913 "event ack in the top half for event(0x%02x), event_ctx(0x%08x) is postponed\n",
1917 drv_cmd = &mrioc->evtack_cmds[cmd_idx];
1920 cmd_idx = drv_cmd->host_tag - MPI3MR_HOSTTAG_EVTACKCMD_MIN;
1922 memset(&evtack_req, 0, sizeof(evtack_req));
1923 if (drv_cmd->state & MPI3MR_CMD_PENDING) {
1924 dprint_event_th(mrioc,
1925 "sending event ack failed due to command in use\n");
1928 drv_cmd->state = MPI3MR_CMD_PENDING;
1929 drv_cmd->is_waiting = 0;
1930 drv_cmd->callback = mpi3mr_complete_evt_ack;
1931 evtack_req.host_tag = cpu_to_le16(drv_cmd->host_tag);
1932 evtack_req.function = MPI3_FUNCTION_EVENT_ACK;
1933 evtack_req.event = event;
1934 evtack_req.event_context = cpu_to_le32(event_ctx);
1935 retval = mpi3mr_admin_request_post(mrioc, &evtack_req,
1936 sizeof(evtack_req), 1);
1938 dprint_event_th(mrioc,
1939 "posting event ack request is failed\n");
1943 dprint_event_th(mrioc,
1944 "event ack in the top half for event(0x%02x), event_ctx(0x%08x) is posted\n",
1949 drv_cmd->state = MPI3MR_CMD_NOTUSED;
1950 drv_cmd->callback = NULL;
1951 clear_bit(cmd_idx, mrioc->evtack_cmds_bitmap);
1955 * mpi3mr_pcietopochg_evt_th - PCIETopologyChange evt tophalf
1956 * @mrioc: Adapter instance reference
1957 * @event_reply: event data
1959 * Checks for the reason code and based on that either block I/O
1960 * to device, or unblock I/O to the device, or start the device
1961 * removal handshake with reason as remove with the firmware for
1966 static void mpi3mr_pcietopochg_evt_th(struct mpi3mr_ioc *mrioc,
1967 struct mpi3_event_notification_reply *event_reply)
1969 struct mpi3_event_data_pcie_topology_change_list *topo_evt =
1970 (struct mpi3_event_data_pcie_topology_change_list *)event_reply->event_data;
1974 struct mpi3mr_tgt_dev *tgtdev = NULL;
1975 struct mpi3mr_stgt_priv_data *scsi_tgt_priv_data = NULL;
1977 for (i = 0; i < topo_evt->num_entries; i++) {
1978 handle = le16_to_cpu(topo_evt->port_entry[i].attached_dev_handle);
1981 reason_code = topo_evt->port_entry[i].port_status;
1982 scsi_tgt_priv_data = NULL;
1983 tgtdev = mpi3mr_get_tgtdev_by_handle(mrioc, handle);
1984 if (tgtdev && tgtdev->starget && tgtdev->starget->hostdata)
1985 scsi_tgt_priv_data = (struct mpi3mr_stgt_priv_data *)
1986 tgtdev->starget->hostdata;
1987 switch (reason_code) {
1988 case MPI3_EVENT_PCIE_TOPO_PS_NOT_RESPONDING:
1989 if (scsi_tgt_priv_data) {
1990 scsi_tgt_priv_data->dev_removed = 1;
1991 scsi_tgt_priv_data->dev_removedelay = 0;
1992 atomic_set(&scsi_tgt_priv_data->block_io, 0);
1994 mpi3mr_dev_rmhs_send_tm(mrioc, handle, NULL,
1995 MPI3_CTRL_OP_REMOVE_DEVICE);
1997 case MPI3_EVENT_PCIE_TOPO_PS_DELAY_NOT_RESPONDING:
1998 if (scsi_tgt_priv_data) {
1999 scsi_tgt_priv_data->dev_removedelay = 1;
2000 atomic_inc(&scsi_tgt_priv_data->block_io);
2003 case MPI3_EVENT_PCIE_TOPO_PS_RESPONDING:
2004 if (scsi_tgt_priv_data &&
2005 scsi_tgt_priv_data->dev_removedelay) {
2006 scsi_tgt_priv_data->dev_removedelay = 0;
2007 atomic_dec_if_positive
2008 (&scsi_tgt_priv_data->block_io);
2011 case MPI3_EVENT_PCIE_TOPO_PS_PORT_CHANGED:
2016 mpi3mr_tgtdev_put(tgtdev);
2021 * mpi3mr_sastopochg_evt_th - SASTopologyChange evt tophalf
2022 * @mrioc: Adapter instance reference
2023 * @event_reply: event data
2025 * Checks for the reason code and based on that either block I/O
2026 * to device, or unblock I/O to the device, or start the device
2027 * removal handshake with reason as remove with the firmware for
2032 static void mpi3mr_sastopochg_evt_th(struct mpi3mr_ioc *mrioc,
2033 struct mpi3_event_notification_reply *event_reply)
2035 struct mpi3_event_data_sas_topology_change_list *topo_evt =
2036 (struct mpi3_event_data_sas_topology_change_list *)event_reply->event_data;
2040 struct mpi3mr_tgt_dev *tgtdev = NULL;
2041 struct mpi3mr_stgt_priv_data *scsi_tgt_priv_data = NULL;
2043 for (i = 0; i < topo_evt->num_entries; i++) {
2044 handle = le16_to_cpu(topo_evt->phy_entry[i].attached_dev_handle);
2047 reason_code = topo_evt->phy_entry[i].status &
2048 MPI3_EVENT_SAS_TOPO_PHY_RC_MASK;
2049 scsi_tgt_priv_data = NULL;
2050 tgtdev = mpi3mr_get_tgtdev_by_handle(mrioc, handle);
2051 if (tgtdev && tgtdev->starget && tgtdev->starget->hostdata)
2052 scsi_tgt_priv_data = (struct mpi3mr_stgt_priv_data *)
2053 tgtdev->starget->hostdata;
2054 switch (reason_code) {
2055 case MPI3_EVENT_SAS_TOPO_PHY_RC_TARG_NOT_RESPONDING:
2056 if (scsi_tgt_priv_data) {
2057 scsi_tgt_priv_data->dev_removed = 1;
2058 scsi_tgt_priv_data->dev_removedelay = 0;
2059 atomic_set(&scsi_tgt_priv_data->block_io, 0);
2061 mpi3mr_dev_rmhs_send_tm(mrioc, handle, NULL,
2062 MPI3_CTRL_OP_REMOVE_DEVICE);
2064 case MPI3_EVENT_SAS_TOPO_PHY_RC_DELAY_NOT_RESPONDING:
2065 if (scsi_tgt_priv_data) {
2066 scsi_tgt_priv_data->dev_removedelay = 1;
2067 atomic_inc(&scsi_tgt_priv_data->block_io);
2070 case MPI3_EVENT_SAS_TOPO_PHY_RC_RESPONDING:
2071 if (scsi_tgt_priv_data &&
2072 scsi_tgt_priv_data->dev_removedelay) {
2073 scsi_tgt_priv_data->dev_removedelay = 0;
2074 atomic_dec_if_positive
2075 (&scsi_tgt_priv_data->block_io);
2078 case MPI3_EVENT_SAS_TOPO_PHY_RC_PHY_CHANGED:
2083 mpi3mr_tgtdev_put(tgtdev);
2088 * mpi3mr_devstatuschg_evt_th - DeviceStatusChange evt tophalf
2089 * @mrioc: Adapter instance reference
2090 * @event_reply: event data
2092 * Checks for the reason code and based on that either block I/O
2093 * to device, or unblock I/O to the device, or start the device
2094 * removal handshake with reason as remove/hide acknowledgment
2095 * with the firmware.
2099 static void mpi3mr_devstatuschg_evt_th(struct mpi3mr_ioc *mrioc,
2100 struct mpi3_event_notification_reply *event_reply)
2103 u8 ublock = 0, block = 0, hide = 0, delete = 0, remove = 0;
2104 struct mpi3mr_tgt_dev *tgtdev = NULL;
2105 struct mpi3mr_stgt_priv_data *scsi_tgt_priv_data = NULL;
2106 struct mpi3_event_data_device_status_change *evtdata =
2107 (struct mpi3_event_data_device_status_change *)event_reply->event_data;
2109 if (mrioc->stop_drv_processing)
2112 dev_handle = le16_to_cpu(evtdata->dev_handle);
2114 switch (evtdata->reason_code) {
2115 case MPI3_EVENT_DEV_STAT_RC_INT_DEVICE_RESET_STRT:
2116 case MPI3_EVENT_DEV_STAT_RC_INT_IT_NEXUS_RESET_STRT:
2119 case MPI3_EVENT_DEV_STAT_RC_HIDDEN:
2123 case MPI3_EVENT_DEV_STAT_RC_VD_NOT_RESPONDING:
2127 case MPI3_EVENT_DEV_STAT_RC_INT_DEVICE_RESET_CMP:
2128 case MPI3_EVENT_DEV_STAT_RC_INT_IT_NEXUS_RESET_CMP:
2135 tgtdev = mpi3mr_get_tgtdev_by_handle(mrioc, dev_handle);
2139 tgtdev->is_hidden = hide;
2140 if (tgtdev->starget && tgtdev->starget->hostdata) {
2141 scsi_tgt_priv_data = (struct mpi3mr_stgt_priv_data *)
2142 tgtdev->starget->hostdata;
2144 atomic_inc(&scsi_tgt_priv_data->block_io);
2146 scsi_tgt_priv_data->dev_removed = 1;
2148 atomic_dec_if_positive(&scsi_tgt_priv_data->block_io);
2151 mpi3mr_dev_rmhs_send_tm(mrioc, dev_handle, NULL,
2152 MPI3_CTRL_OP_REMOVE_DEVICE);
2154 mpi3mr_dev_rmhs_send_tm(mrioc, dev_handle, NULL,
2155 MPI3_CTRL_OP_HIDDEN_ACK);
2159 mpi3mr_tgtdev_put(tgtdev);
2163 * mpi3mr_preparereset_evt_th - Prepare for reset event tophalf
2164 * @mrioc: Adapter instance reference
2165 * @event_reply: event data
2167 * Blocks and unblocks host level I/O based on the reason code
2171 static void mpi3mr_preparereset_evt_th(struct mpi3mr_ioc *mrioc,
2172 struct mpi3_event_notification_reply *event_reply)
2174 struct mpi3_event_data_prepare_for_reset *evtdata =
2175 (struct mpi3_event_data_prepare_for_reset *)event_reply->event_data;
2177 if (evtdata->reason_code == MPI3_EVENT_PREPARE_RESET_RC_START) {
2178 dprint_event_th(mrioc,
2179 "prepare for reset event top half with rc=start\n");
2180 if (mrioc->prepare_for_reset)
2182 mrioc->prepare_for_reset = 1;
2183 mrioc->prepare_for_reset_timeout_counter = 0;
2184 } else if (evtdata->reason_code == MPI3_EVENT_PREPARE_RESET_RC_ABORT) {
2185 dprint_event_th(mrioc,
2186 "prepare for reset top half with rc=abort\n");
2187 mrioc->prepare_for_reset = 0;
2188 mrioc->prepare_for_reset_timeout_counter = 0;
2190 if ((event_reply->msg_flags & MPI3_EVENT_NOTIFY_MSGFLAGS_ACK_MASK)
2191 == MPI3_EVENT_NOTIFY_MSGFLAGS_ACK_REQUIRED)
2192 mpi3mr_send_event_ack(mrioc, event_reply->event, NULL,
2193 le32_to_cpu(event_reply->event_context));
2197 * mpi3mr_energypackchg_evt_th - Energy pack change evt tophalf
2198 * @mrioc: Adapter instance reference
2199 * @event_reply: event data
2201 * Identifies the new shutdown timeout value and update.
2205 static void mpi3mr_energypackchg_evt_th(struct mpi3mr_ioc *mrioc,
2206 struct mpi3_event_notification_reply *event_reply)
2208 struct mpi3_event_data_energy_pack_change *evtdata =
2209 (struct mpi3_event_data_energy_pack_change *)event_reply->event_data;
2210 u16 shutdown_timeout = le16_to_cpu(evtdata->shutdown_timeout);
2212 if (shutdown_timeout <= 0) {
2214 "%s :Invalid Shutdown Timeout received = %d\n",
2215 __func__, shutdown_timeout);
2220 "%s :Previous Shutdown Timeout Value = %d New Shutdown Timeout Value = %d\n",
2221 __func__, mrioc->facts.shutdown_timeout, shutdown_timeout);
2222 mrioc->facts.shutdown_timeout = shutdown_timeout;
2226 * mpi3mr_cablemgmt_evt_th - Cable management event tophalf
2227 * @mrioc: Adapter instance reference
2228 * @event_reply: event data
2230 * Displays Cable manegemt event details.
2234 static void mpi3mr_cablemgmt_evt_th(struct mpi3mr_ioc *mrioc,
2235 struct mpi3_event_notification_reply *event_reply)
2237 struct mpi3_event_data_cable_management *evtdata =
2238 (struct mpi3_event_data_cable_management *)event_reply->event_data;
2240 switch (evtdata->status) {
2241 case MPI3_EVENT_CABLE_MGMT_STATUS_INSUFFICIENT_POWER:
2243 ioc_info(mrioc, "An active cable with receptacle_id %d cannot be powered.\n"
2244 "Devices connected to this cable are not detected.\n"
2245 "This cable requires %d mW of power.\n",
2246 evtdata->receptacle_id,
2247 le32_to_cpu(evtdata->active_cable_power_requirement));
2250 case MPI3_EVENT_CABLE_MGMT_STATUS_DEGRADED:
2252 ioc_info(mrioc, "A cable with receptacle_id %d is not running at optimal speed\n",
2253 evtdata->receptacle_id);
2262 * mpi3mr_os_handle_events - Firmware event handler
2263 * @mrioc: Adapter instance reference
2264 * @event_reply: event data
2266 * Identify whteher the event has to handled and acknowledged
2267 * and either process the event in the tophalf and/or schedule a
2268 * bottom half through mpi3mr_fwevt_worker.
2272 void mpi3mr_os_handle_events(struct mpi3mr_ioc *mrioc,
2273 struct mpi3_event_notification_reply *event_reply)
2276 struct mpi3mr_fwevt *fwevt = NULL;
2277 bool ack_req = 0, process_evt_bh = 0;
2279 if (mrioc->stop_drv_processing)
2282 if ((event_reply->msg_flags & MPI3_EVENT_NOTIFY_MSGFLAGS_ACK_MASK)
2283 == MPI3_EVENT_NOTIFY_MSGFLAGS_ACK_REQUIRED)
2286 evt_type = event_reply->event;
2289 case MPI3_EVENT_DEVICE_ADDED:
2291 struct mpi3_device_page0 *dev_pg0 =
2292 (struct mpi3_device_page0 *)event_reply->event_data;
2293 if (mpi3mr_create_tgtdev(mrioc, dev_pg0))
2295 "%s :Failed to add device in the device add event\n",
2301 case MPI3_EVENT_DEVICE_STATUS_CHANGE:
2304 mpi3mr_devstatuschg_evt_th(mrioc, event_reply);
2307 case MPI3_EVENT_SAS_TOPOLOGY_CHANGE_LIST:
2310 mpi3mr_sastopochg_evt_th(mrioc, event_reply);
2313 case MPI3_EVENT_PCIE_TOPOLOGY_CHANGE_LIST:
2316 mpi3mr_pcietopochg_evt_th(mrioc, event_reply);
2319 case MPI3_EVENT_PREPARE_FOR_RESET:
2321 mpi3mr_preparereset_evt_th(mrioc, event_reply);
2325 case MPI3_EVENT_DEVICE_INFO_CHANGED:
2326 case MPI3_EVENT_LOG_DATA:
2331 case MPI3_EVENT_ENERGY_PACK_CHANGE:
2333 mpi3mr_energypackchg_evt_th(mrioc, event_reply);
2336 case MPI3_EVENT_CABLE_MGMT:
2338 mpi3mr_cablemgmt_evt_th(mrioc, event_reply);
2341 case MPI3_EVENT_ENCL_DEVICE_STATUS_CHANGE:
2342 case MPI3_EVENT_SAS_DISCOVERY:
2343 case MPI3_EVENT_SAS_DEVICE_DISCOVERY_ERROR:
2344 case MPI3_EVENT_SAS_BROADCAST_PRIMITIVE:
2345 case MPI3_EVENT_PCIE_ENUMERATION:
2348 ioc_info(mrioc, "%s :event 0x%02x is not handled\n",
2349 __func__, evt_type);
2352 if (process_evt_bh || ack_req) {
2353 sz = event_reply->event_data_length * 4;
2354 fwevt = mpi3mr_alloc_fwevt(sz);
2356 ioc_info(mrioc, "%s :failure at %s:%d/%s()!\n",
2357 __func__, __FILE__, __LINE__, __func__);
2361 memcpy(fwevt->event_data, event_reply->event_data, sz);
2362 fwevt->mrioc = mrioc;
2363 fwevt->event_id = evt_type;
2364 fwevt->send_ack = ack_req;
2365 fwevt->process_evt = process_evt_bh;
2366 fwevt->evt_ctx = le32_to_cpu(event_reply->event_context);
2367 mpi3mr_fwevt_add_to_list(mrioc, fwevt);
2372 * mpi3mr_setup_eedp - Setup EEDP information in MPI3 SCSI IO
2373 * @mrioc: Adapter instance reference
2374 * @scmd: SCSI command reference
2375 * @scsiio_req: MPI3 SCSI IO request
2377 * Identifies the protection information flags from the SCSI
2378 * command and set appropriate flags in the MPI3 SCSI IO
2383 static void mpi3mr_setup_eedp(struct mpi3mr_ioc *mrioc,
2384 struct scsi_cmnd *scmd, struct mpi3_scsi_io_request *scsiio_req)
2387 unsigned char prot_op = scsi_get_prot_op(scmd);
2390 case SCSI_PROT_NORMAL:
2392 case SCSI_PROT_READ_STRIP:
2393 eedp_flags = MPI3_EEDPFLAGS_EEDP_OP_CHECK_REMOVE;
2395 case SCSI_PROT_WRITE_INSERT:
2396 eedp_flags = MPI3_EEDPFLAGS_EEDP_OP_INSERT;
2398 case SCSI_PROT_READ_INSERT:
2399 eedp_flags = MPI3_EEDPFLAGS_EEDP_OP_INSERT;
2400 scsiio_req->msg_flags |= MPI3_SCSIIO_MSGFLAGS_METASGL_VALID;
2402 case SCSI_PROT_WRITE_STRIP:
2403 eedp_flags = MPI3_EEDPFLAGS_EEDP_OP_CHECK_REMOVE;
2404 scsiio_req->msg_flags |= MPI3_SCSIIO_MSGFLAGS_METASGL_VALID;
2406 case SCSI_PROT_READ_PASS:
2407 eedp_flags = MPI3_EEDPFLAGS_EEDP_OP_CHECK;
2408 scsiio_req->msg_flags |= MPI3_SCSIIO_MSGFLAGS_METASGL_VALID;
2410 case SCSI_PROT_WRITE_PASS:
2411 if (scmd->prot_flags & SCSI_PROT_IP_CHECKSUM) {
2412 eedp_flags = MPI3_EEDPFLAGS_EEDP_OP_CHECK_REGEN;
2413 scsiio_req->sgl[0].eedp.application_tag_translation_mask =
2416 eedp_flags = MPI3_EEDPFLAGS_EEDP_OP_CHECK;
2418 scsiio_req->msg_flags |= MPI3_SCSIIO_MSGFLAGS_METASGL_VALID;
2424 if (scmd->prot_flags & SCSI_PROT_GUARD_CHECK)
2425 eedp_flags |= MPI3_EEDPFLAGS_CHK_GUARD;
2427 if (scmd->prot_flags & SCSI_PROT_IP_CHECKSUM)
2428 eedp_flags |= MPI3_EEDPFLAGS_HOST_GUARD_IP_CHKSUM;
2430 if (scmd->prot_flags & SCSI_PROT_REF_CHECK) {
2431 eedp_flags |= MPI3_EEDPFLAGS_CHK_REF_TAG |
2432 MPI3_EEDPFLAGS_INCR_PRI_REF_TAG;
2433 scsiio_req->cdb.eedp32.primary_reference_tag =
2434 cpu_to_be32(scsi_prot_ref_tag(scmd));
2437 if (scmd->prot_flags & SCSI_PROT_REF_INCREMENT)
2438 eedp_flags |= MPI3_EEDPFLAGS_INCR_PRI_REF_TAG;
2440 eedp_flags |= MPI3_EEDPFLAGS_ESC_MODE_APPTAG_DISABLE;
2442 switch (scsi_prot_interval(scmd)) {
2444 scsiio_req->sgl[0].eedp.user_data_size = MPI3_EEDP_UDS_512;
2447 scsiio_req->sgl[0].eedp.user_data_size = MPI3_EEDP_UDS_520;
2450 scsiio_req->sgl[0].eedp.user_data_size = MPI3_EEDP_UDS_4080;
2453 scsiio_req->sgl[0].eedp.user_data_size = MPI3_EEDP_UDS_4088;
2456 scsiio_req->sgl[0].eedp.user_data_size = MPI3_EEDP_UDS_4096;
2459 scsiio_req->sgl[0].eedp.user_data_size = MPI3_EEDP_UDS_4104;
2462 scsiio_req->sgl[0].eedp.user_data_size = MPI3_EEDP_UDS_4160;
2468 scsiio_req->sgl[0].eedp.eedp_flags = cpu_to_le16(eedp_flags);
2469 scsiio_req->sgl[0].eedp.flags = MPI3_SGE_FLAGS_ELEMENT_TYPE_EXTENDED;
2473 * mpi3mr_build_sense_buffer - Map sense information
2475 * @buf: Sense buffer to populate
2477 * @asc: Additional sense code
2478 * @ascq: Additional sense code qualifier
2480 * Maps the given sense information into either descriptor or
2481 * fixed format sense data.
2485 static inline void mpi3mr_build_sense_buffer(int desc, u8 *buf, u8 key,
2489 buf[0] = 0x72; /* descriptor, current */
2495 buf[0] = 0x70; /* fixed, current */
2504 * mpi3mr_map_eedp_error - Map EEDP errors from IOC status
2505 * @scmd: SCSI command reference
2506 * @ioc_status: status of MPI3 request
2508 * Maps the EEDP error status of the SCSI IO request to sense
2513 static void mpi3mr_map_eedp_error(struct scsi_cmnd *scmd,
2518 switch (ioc_status) {
2519 case MPI3_IOCSTATUS_EEDP_GUARD_ERROR:
2522 case MPI3_IOCSTATUS_EEDP_APP_TAG_ERROR:
2525 case MPI3_IOCSTATUS_EEDP_REF_TAG_ERROR:
2533 mpi3mr_build_sense_buffer(0, scmd->sense_buffer, ILLEGAL_REQUEST,
2535 scmd->result = (DID_ABORT << 16) | SAM_STAT_CHECK_CONDITION;
2539 * mpi3mr_process_op_reply_desc - reply descriptor handler
2540 * @mrioc: Adapter instance reference
2541 * @reply_desc: Operational reply descriptor
2542 * @reply_dma: place holder for reply DMA address
2543 * @qidx: Operational queue index
2545 * Process the operational reply descriptor and identifies the
2546 * descriptor type. Based on the descriptor map the MPI3 request
2547 * status to a SCSI command status and calls scsi_done call
2552 void mpi3mr_process_op_reply_desc(struct mpi3mr_ioc *mrioc,
2553 struct mpi3_default_reply_descriptor *reply_desc, u64 *reply_dma, u16 qidx)
2555 u16 reply_desc_type, host_tag = 0;
2556 u16 ioc_status = MPI3_IOCSTATUS_SUCCESS;
2557 u32 ioc_loginfo = 0;
2558 struct mpi3_status_reply_descriptor *status_desc = NULL;
2559 struct mpi3_address_reply_descriptor *addr_desc = NULL;
2560 struct mpi3_success_reply_descriptor *success_desc = NULL;
2561 struct mpi3_scsi_io_reply *scsi_reply = NULL;
2562 struct scsi_cmnd *scmd = NULL;
2563 struct scmd_priv *priv = NULL;
2564 u8 *sense_buf = NULL;
2565 u8 scsi_state = 0, scsi_status = 0, sense_state = 0;
2566 u32 xfer_count = 0, sense_count = 0, resp_data = 0;
2567 u16 dev_handle = 0xFFFF;
2568 struct scsi_sense_hdr sshdr;
2571 reply_desc_type = le16_to_cpu(reply_desc->reply_flags) &
2572 MPI3_REPLY_DESCRIPT_FLAGS_TYPE_MASK;
2573 switch (reply_desc_type) {
2574 case MPI3_REPLY_DESCRIPT_FLAGS_TYPE_STATUS:
2575 status_desc = (struct mpi3_status_reply_descriptor *)reply_desc;
2576 host_tag = le16_to_cpu(status_desc->host_tag);
2577 ioc_status = le16_to_cpu(status_desc->ioc_status);
2579 MPI3_REPLY_DESCRIPT_STATUS_IOCSTATUS_LOGINFOAVAIL)
2580 ioc_loginfo = le32_to_cpu(status_desc->ioc_log_info);
2581 ioc_status &= MPI3_REPLY_DESCRIPT_STATUS_IOCSTATUS_STATUS_MASK;
2583 case MPI3_REPLY_DESCRIPT_FLAGS_TYPE_ADDRESS_REPLY:
2584 addr_desc = (struct mpi3_address_reply_descriptor *)reply_desc;
2585 *reply_dma = le64_to_cpu(addr_desc->reply_frame_address);
2586 scsi_reply = mpi3mr_get_reply_virt_addr(mrioc,
2589 panic("%s: scsi_reply is NULL, this shouldn't happen\n",
2593 host_tag = le16_to_cpu(scsi_reply->host_tag);
2594 ioc_status = le16_to_cpu(scsi_reply->ioc_status);
2595 scsi_status = scsi_reply->scsi_status;
2596 scsi_state = scsi_reply->scsi_state;
2597 dev_handle = le16_to_cpu(scsi_reply->dev_handle);
2598 sense_state = (scsi_state & MPI3_SCSI_STATE_SENSE_MASK);
2599 xfer_count = le32_to_cpu(scsi_reply->transfer_count);
2600 sense_count = le32_to_cpu(scsi_reply->sense_count);
2601 resp_data = le32_to_cpu(scsi_reply->response_data);
2602 sense_buf = mpi3mr_get_sensebuf_virt_addr(mrioc,
2603 le64_to_cpu(scsi_reply->sense_data_buffer_address));
2605 MPI3_REPLY_DESCRIPT_STATUS_IOCSTATUS_LOGINFOAVAIL)
2606 ioc_loginfo = le32_to_cpu(scsi_reply->ioc_log_info);
2607 ioc_status &= MPI3_REPLY_DESCRIPT_STATUS_IOCSTATUS_STATUS_MASK;
2608 if (sense_state == MPI3_SCSI_STATE_SENSE_BUFF_Q_EMPTY)
2609 panic("%s: Ran out of sense buffers\n", mrioc->name);
2611 case MPI3_REPLY_DESCRIPT_FLAGS_TYPE_SUCCESS:
2612 success_desc = (struct mpi3_success_reply_descriptor *)reply_desc;
2613 host_tag = le16_to_cpu(success_desc->host_tag);
2618 scmd = mpi3mr_scmd_from_host_tag(mrioc, host_tag, qidx);
2620 panic("%s: Cannot Identify scmd for host_tag 0x%x\n",
2621 mrioc->name, host_tag);
2624 priv = scsi_cmd_priv(scmd);
2626 scmd->result = DID_OK << 16;
2630 scsi_set_resid(scmd, scsi_bufflen(scmd) - xfer_count);
2631 if (ioc_status == MPI3_IOCSTATUS_SCSI_DATA_UNDERRUN &&
2632 xfer_count == 0 && (scsi_status == MPI3_SCSI_STATUS_BUSY ||
2633 scsi_status == MPI3_SCSI_STATUS_RESERVATION_CONFLICT ||
2634 scsi_status == MPI3_SCSI_STATUS_TASK_SET_FULL))
2635 ioc_status = MPI3_IOCSTATUS_SUCCESS;
2637 if ((sense_state == MPI3_SCSI_STATE_SENSE_VALID) && sense_count &&
2639 u32 sz = min_t(u32, SCSI_SENSE_BUFFERSIZE, sense_count);
2641 memcpy(scmd->sense_buffer, sense_buf, sz);
2644 switch (ioc_status) {
2645 case MPI3_IOCSTATUS_BUSY:
2646 case MPI3_IOCSTATUS_INSUFFICIENT_RESOURCES:
2647 scmd->result = SAM_STAT_BUSY;
2649 case MPI3_IOCSTATUS_SCSI_DEVICE_NOT_THERE:
2650 scmd->result = DID_NO_CONNECT << 16;
2652 case MPI3_IOCSTATUS_SCSI_IOC_TERMINATED:
2653 scmd->result = DID_SOFT_ERROR << 16;
2655 case MPI3_IOCSTATUS_SCSI_TASK_TERMINATED:
2656 case MPI3_IOCSTATUS_SCSI_EXT_TERMINATED:
2657 scmd->result = DID_RESET << 16;
2659 case MPI3_IOCSTATUS_SCSI_RESIDUAL_MISMATCH:
2660 if ((xfer_count == 0) || (scmd->underflow > xfer_count))
2661 scmd->result = DID_SOFT_ERROR << 16;
2663 scmd->result = (DID_OK << 16) | scsi_status;
2665 case MPI3_IOCSTATUS_SCSI_DATA_UNDERRUN:
2666 scmd->result = (DID_OK << 16) | scsi_status;
2667 if (sense_state == MPI3_SCSI_STATE_SENSE_VALID)
2669 if (xfer_count < scmd->underflow) {
2670 if (scsi_status == SAM_STAT_BUSY)
2671 scmd->result = SAM_STAT_BUSY;
2673 scmd->result = DID_SOFT_ERROR << 16;
2674 } else if ((scsi_state & (MPI3_SCSI_STATE_NO_SCSI_STATUS)) ||
2675 (sense_state != MPI3_SCSI_STATE_SENSE_NOT_AVAILABLE))
2676 scmd->result = DID_SOFT_ERROR << 16;
2677 else if (scsi_state & MPI3_SCSI_STATE_TERMINATED)
2678 scmd->result = DID_RESET << 16;
2680 case MPI3_IOCSTATUS_SCSI_DATA_OVERRUN:
2681 scsi_set_resid(scmd, 0);
2683 case MPI3_IOCSTATUS_SCSI_RECOVERED_ERROR:
2684 case MPI3_IOCSTATUS_SUCCESS:
2685 scmd->result = (DID_OK << 16) | scsi_status;
2686 if ((scsi_state & (MPI3_SCSI_STATE_NO_SCSI_STATUS)) ||
2687 (sense_state == MPI3_SCSI_STATE_SENSE_FAILED) ||
2688 (sense_state == MPI3_SCSI_STATE_SENSE_BUFF_Q_EMPTY))
2689 scmd->result = DID_SOFT_ERROR << 16;
2690 else if (scsi_state & MPI3_SCSI_STATE_TERMINATED)
2691 scmd->result = DID_RESET << 16;
2693 case MPI3_IOCSTATUS_EEDP_GUARD_ERROR:
2694 case MPI3_IOCSTATUS_EEDP_REF_TAG_ERROR:
2695 case MPI3_IOCSTATUS_EEDP_APP_TAG_ERROR:
2696 mpi3mr_map_eedp_error(scmd, ioc_status);
2698 case MPI3_IOCSTATUS_SCSI_PROTOCOL_ERROR:
2699 case MPI3_IOCSTATUS_INVALID_FUNCTION:
2700 case MPI3_IOCSTATUS_INVALID_SGL:
2701 case MPI3_IOCSTATUS_INTERNAL_ERROR:
2702 case MPI3_IOCSTATUS_INVALID_FIELD:
2703 case MPI3_IOCSTATUS_INVALID_STATE:
2704 case MPI3_IOCSTATUS_SCSI_IO_DATA_ERROR:
2705 case MPI3_IOCSTATUS_SCSI_TASK_MGMT_FAILED:
2706 case MPI3_IOCSTATUS_INSUFFICIENT_POWER:
2708 scmd->result = DID_SOFT_ERROR << 16;
2712 if (scmd->result != (DID_OK << 16) && (scmd->cmnd[0] != ATA_12) &&
2713 (scmd->cmnd[0] != ATA_16)) {
2714 ioc_info(mrioc, "%s :scmd->result 0x%x\n", __func__,
2716 scsi_print_command(scmd);
2718 "%s :Command issued to handle 0x%02x returned with error 0x%04x loginfo 0x%08x, qid %d\n",
2719 __func__, dev_handle, ioc_status, ioc_loginfo,
2720 priv->req_q_idx + 1);
2722 " host_tag %d scsi_state 0x%02x scsi_status 0x%02x, xfer_cnt %d resp_data 0x%x\n",
2723 host_tag, scsi_state, scsi_status, xfer_count, resp_data);
2725 scsi_normalize_sense(sense_buf, sense_count, &sshdr);
2727 "%s :sense_count 0x%x, sense_key 0x%x ASC 0x%x, ASCQ 0x%x\n",
2728 __func__, sense_count, sshdr.sense_key,
2729 sshdr.asc, sshdr.ascq);
2733 if (priv->meta_sg_valid) {
2734 dma_unmap_sg(&mrioc->pdev->dev, scsi_prot_sglist(scmd),
2735 scsi_prot_sg_count(scmd), scmd->sc_data_direction);
2737 mpi3mr_clear_scmd_priv(mrioc, scmd);
2738 scsi_dma_unmap(scmd);
2742 mpi3mr_repost_sense_buf(mrioc,
2743 le64_to_cpu(scsi_reply->sense_data_buffer_address));
2747 * mpi3mr_get_chain_idx - get free chain buffer index
2748 * @mrioc: Adapter instance reference
2750 * Try to get a free chain buffer index from the free pool.
2752 * Return: -1 on failure or the free chain buffer index
2754 static int mpi3mr_get_chain_idx(struct mpi3mr_ioc *mrioc)
2760 spin_lock(&mrioc->chain_buf_lock);
2761 cmd_idx = find_first_zero_bit(mrioc->chain_bitmap,
2762 mrioc->chain_buf_count);
2763 if (cmd_idx < mrioc->chain_buf_count) {
2764 set_bit(cmd_idx, mrioc->chain_bitmap);
2765 spin_unlock(&mrioc->chain_buf_lock);
2768 spin_unlock(&mrioc->chain_buf_lock);
2770 } while (retry_count--);
2775 * mpi3mr_prepare_sg_scmd - build scatter gather list
2776 * @mrioc: Adapter instance reference
2777 * @scmd: SCSI command reference
2778 * @scsiio_req: MPI3 SCSI IO request
2780 * This function maps SCSI command's data and protection SGEs to
2781 * MPI request SGEs. If required additional 4K chain buffer is
2782 * used to send the SGEs.
2784 * Return: 0 on success, -ENOMEM on dma_map_sg failure
2786 static int mpi3mr_prepare_sg_scmd(struct mpi3mr_ioc *mrioc,
2787 struct scsi_cmnd *scmd, struct mpi3_scsi_io_request *scsiio_req)
2789 dma_addr_t chain_dma;
2790 struct scatterlist *sg_scmd;
2791 void *sg_local, *chain;
2793 int sges_left, chain_idx;
2794 u32 sges_in_segment;
2795 u8 simple_sgl_flags;
2796 u8 simple_sgl_flags_last;
2797 u8 last_chain_sgl_flags;
2798 struct chain_element *chain_req;
2799 struct scmd_priv *priv = NULL;
2800 u32 meta_sg = le32_to_cpu(scsiio_req->flags) &
2801 MPI3_SCSIIO_FLAGS_DMAOPERATION_HOST_PI;
2803 priv = scsi_cmd_priv(scmd);
2805 simple_sgl_flags = MPI3_SGE_FLAGS_ELEMENT_TYPE_SIMPLE |
2806 MPI3_SGE_FLAGS_DLAS_SYSTEM;
2807 simple_sgl_flags_last = simple_sgl_flags |
2808 MPI3_SGE_FLAGS_END_OF_LIST;
2809 last_chain_sgl_flags = MPI3_SGE_FLAGS_ELEMENT_TYPE_LAST_CHAIN |
2810 MPI3_SGE_FLAGS_DLAS_SYSTEM;
2813 sg_local = &scsiio_req->sgl[MPI3_SCSIIO_METASGL_INDEX];
2815 sg_local = &scsiio_req->sgl;
2817 if (!scsiio_req->data_length && !meta_sg) {
2818 mpi3mr_build_zero_len_sge(sg_local);
2823 sg_scmd = scsi_prot_sglist(scmd);
2824 sges_left = dma_map_sg(&mrioc->pdev->dev,
2825 scsi_prot_sglist(scmd),
2826 scsi_prot_sg_count(scmd),
2827 scmd->sc_data_direction);
2828 priv->meta_sg_valid = 1; /* To unmap meta sg DMA */
2830 sg_scmd = scsi_sglist(scmd);
2831 sges_left = scsi_dma_map(scmd);
2834 if (sges_left < 0) {
2835 sdev_printk(KERN_ERR, scmd->device,
2836 "scsi_dma_map failed: request for %d bytes!\n",
2837 scsi_bufflen(scmd));
2840 if (sges_left > MPI3MR_SG_DEPTH) {
2841 sdev_printk(KERN_ERR, scmd->device,
2842 "scsi_dma_map returned unsupported sge count %d!\n",
2847 sges_in_segment = (mrioc->facts.op_req_sz -
2848 offsetof(struct mpi3_scsi_io_request, sgl)) / sizeof(struct mpi3_sge_common);
2850 if (scsiio_req->sgl[0].eedp.flags ==
2851 MPI3_SGE_FLAGS_ELEMENT_TYPE_EXTENDED && !meta_sg) {
2852 sg_local += sizeof(struct mpi3_sge_common);
2854 /* Reserve 1st segment (scsiio_req->sgl[0]) for eedp */
2857 if (scsiio_req->msg_flags ==
2858 MPI3_SCSIIO_MSGFLAGS_METASGL_VALID && !meta_sg) {
2860 /* Reserve last segment (scsiio_req->sgl[3]) for meta sg */
2864 sges_in_segment = 1;
2866 if (sges_left <= sges_in_segment)
2867 goto fill_in_last_segment;
2869 /* fill in main message segment when there is a chain following */
2870 while (sges_in_segment > 1) {
2871 mpi3mr_add_sg_single(sg_local, simple_sgl_flags,
2872 sg_dma_len(sg_scmd), sg_dma_address(sg_scmd));
2873 sg_scmd = sg_next(sg_scmd);
2874 sg_local += sizeof(struct mpi3_sge_common);
2879 chain_idx = mpi3mr_get_chain_idx(mrioc);
2882 chain_req = &mrioc->chain_sgl_list[chain_idx];
2884 priv->meta_chain_idx = chain_idx;
2886 priv->chain_idx = chain_idx;
2888 chain = chain_req->addr;
2889 chain_dma = chain_req->dma_addr;
2890 sges_in_segment = sges_left;
2891 chain_length = sges_in_segment * sizeof(struct mpi3_sge_common);
2893 mpi3mr_add_sg_single(sg_local, last_chain_sgl_flags,
2894 chain_length, chain_dma);
2898 fill_in_last_segment:
2899 while (sges_left > 0) {
2901 mpi3mr_add_sg_single(sg_local,
2902 simple_sgl_flags_last, sg_dma_len(sg_scmd),
2903 sg_dma_address(sg_scmd));
2905 mpi3mr_add_sg_single(sg_local, simple_sgl_flags,
2906 sg_dma_len(sg_scmd), sg_dma_address(sg_scmd));
2907 sg_scmd = sg_next(sg_scmd);
2908 sg_local += sizeof(struct mpi3_sge_common);
2916 * mpi3mr_build_sg_scmd - build scatter gather list for SCSI IO
2917 * @mrioc: Adapter instance reference
2918 * @scmd: SCSI command reference
2919 * @scsiio_req: MPI3 SCSI IO request
2921 * This function calls mpi3mr_prepare_sg_scmd for constructing
2922 * both data SGEs and protection information SGEs in the MPI
2923 * format from the SCSI Command as appropriate .
2925 * Return: return value of mpi3mr_prepare_sg_scmd.
2927 static int mpi3mr_build_sg_scmd(struct mpi3mr_ioc *mrioc,
2928 struct scsi_cmnd *scmd, struct mpi3_scsi_io_request *scsiio_req)
2932 ret = mpi3mr_prepare_sg_scmd(mrioc, scmd, scsiio_req);
2936 if (scsiio_req->msg_flags == MPI3_SCSIIO_MSGFLAGS_METASGL_VALID) {
2937 /* There is a valid meta sg */
2938 scsiio_req->flags |=
2939 cpu_to_le32(MPI3_SCSIIO_FLAGS_DMAOPERATION_HOST_PI);
2940 ret = mpi3mr_prepare_sg_scmd(mrioc, scmd, scsiio_req);
2947 * mpi3mr_tm_response_name - get TM response as a string
2948 * @resp_code: TM response code
2950 * Convert known task management response code as a readable
2953 * Return: response code string.
2955 static const char *mpi3mr_tm_response_name(u8 resp_code)
2959 switch (resp_code) {
2960 case MPI3_SCSITASKMGMT_RSPCODE_TM_COMPLETE:
2961 desc = "task management request completed";
2963 case MPI3_SCSITASKMGMT_RSPCODE_INVALID_FRAME:
2964 desc = "invalid frame";
2966 case MPI3_SCSITASKMGMT_RSPCODE_TM_FUNCTION_NOT_SUPPORTED:
2967 desc = "task management request not supported";
2969 case MPI3_SCSITASKMGMT_RSPCODE_TM_FAILED:
2970 desc = "task management request failed";
2972 case MPI3_SCSITASKMGMT_RSPCODE_TM_SUCCEEDED:
2973 desc = "task management request succeeded";
2975 case MPI3_SCSITASKMGMT_RSPCODE_TM_INVALID_LUN:
2976 desc = "invalid LUN";
2978 case MPI3_SCSITASKMGMT_RSPCODE_TM_OVERLAPPED_TAG:
2979 desc = "overlapped tag attempted";
2981 case MPI3_SCSITASKMGMT_RSPCODE_IO_QUEUED_ON_IOC:
2982 desc = "task queued, however not sent to target";
2984 case MPI3_SCSITASKMGMT_RSPCODE_TM_NVME_DENIED:
2985 desc = "task management request denied by NVMe device";
2995 inline void mpi3mr_poll_pend_io_completions(struct mpi3mr_ioc *mrioc)
2998 int num_of_reply_queues =
2999 mrioc->num_op_reply_q + mrioc->op_reply_q_offset;
3001 for (i = mrioc->op_reply_q_offset; i < num_of_reply_queues; i++)
3002 mpi3mr_process_op_reply_q(mrioc,
3003 mrioc->intr_info[i].op_reply_q);
3007 * mpi3mr_issue_tm - Issue Task Management request
3008 * @mrioc: Adapter instance reference
3009 * @tm_type: Task Management type
3010 * @handle: Device handle
3012 * @htag: Host tag of the TM request
3013 * @timeout: TM timeout value
3014 * @drv_cmd: Internal command tracker
3015 * @resp_code: Response code place holder
3016 * @scmd: SCSI command
3018 * Issues a Task Management Request to the controller for a
3019 * specified target, lun and command and wait for its completion
3020 * and check TM response. Recover the TM if it timed out by
3021 * issuing controller reset.
3023 * Return: 0 on success, non-zero on errors
3025 int mpi3mr_issue_tm(struct mpi3mr_ioc *mrioc, u8 tm_type,
3026 u16 handle, uint lun, u16 htag, ulong timeout,
3027 struct mpi3mr_drv_cmd *drv_cmd,
3028 u8 *resp_code, struct scsi_cmnd *scmd)
3030 struct mpi3_scsi_task_mgmt_request tm_req;
3031 struct mpi3_scsi_task_mgmt_reply *tm_reply = NULL;
3033 struct mpi3mr_tgt_dev *tgtdev = NULL;
3034 struct mpi3mr_stgt_priv_data *scsi_tgt_priv_data = NULL;
3035 struct scmd_priv *cmd_priv = NULL;
3036 struct scsi_device *sdev = NULL;
3037 struct mpi3mr_sdev_priv_data *sdev_priv_data = NULL;
3039 ioc_info(mrioc, "%s :Issue TM: TM type (0x%x) for devhandle 0x%04x\n",
3040 __func__, tm_type, handle);
3041 if (mrioc->unrecoverable) {
3043 ioc_err(mrioc, "%s :Issue TM: Unrecoverable controller\n",
3048 memset(&tm_req, 0, sizeof(tm_req));
3049 mutex_lock(&drv_cmd->mutex);
3050 if (drv_cmd->state & MPI3MR_CMD_PENDING) {
3052 ioc_err(mrioc, "%s :Issue TM: Command is in use\n", __func__);
3053 mutex_unlock(&drv_cmd->mutex);
3056 if (mrioc->reset_in_progress) {
3058 ioc_err(mrioc, "%s :Issue TM: Reset in progress\n", __func__);
3059 mutex_unlock(&drv_cmd->mutex);
3063 drv_cmd->state = MPI3MR_CMD_PENDING;
3064 drv_cmd->is_waiting = 1;
3065 drv_cmd->callback = NULL;
3066 tm_req.dev_handle = cpu_to_le16(handle);
3067 tm_req.task_type = tm_type;
3068 tm_req.host_tag = cpu_to_le16(htag);
3070 int_to_scsilun(lun, (struct scsi_lun *)tm_req.lun);
3071 tm_req.function = MPI3_FUNCTION_SCSI_TASK_MGMT;
3073 tgtdev = mpi3mr_get_tgtdev_by_handle(mrioc, handle);
3076 sdev = scmd->device;
3077 sdev_priv_data = sdev->hostdata;
3078 scsi_tgt_priv_data = ((sdev_priv_data) ?
3079 sdev_priv_data->tgt_priv_data : NULL);
3081 if (tgtdev && tgtdev->starget && tgtdev->starget->hostdata)
3082 scsi_tgt_priv_data = (struct mpi3mr_stgt_priv_data *)
3083 tgtdev->starget->hostdata;
3086 if (scsi_tgt_priv_data)
3087 atomic_inc(&scsi_tgt_priv_data->block_io);
3089 if (tgtdev && (tgtdev->dev_type == MPI3_DEVICE_DEVFORM_PCIE)) {
3090 if (cmd_priv && tgtdev->dev_spec.pcie_inf.abort_to)
3091 timeout = tgtdev->dev_spec.pcie_inf.abort_to;
3092 else if (!cmd_priv && tgtdev->dev_spec.pcie_inf.reset_to)
3093 timeout = tgtdev->dev_spec.pcie_inf.reset_to;
3096 init_completion(&drv_cmd->done);
3097 retval = mpi3mr_admin_request_post(mrioc, &tm_req, sizeof(tm_req), 1);
3099 ioc_err(mrioc, "%s :Issue TM: Admin Post failed\n", __func__);
3102 wait_for_completion_timeout(&drv_cmd->done, (timeout * HZ));
3104 if (!(drv_cmd->state & MPI3MR_CMD_COMPLETE)) {
3105 drv_cmd->is_waiting = 0;
3107 if (!(drv_cmd->state & MPI3MR_CMD_RESET)) {
3109 "task management request timed out after %ld seconds\n",
3111 if (mrioc->logging_level & MPI3_DEBUG_TM)
3112 dprint_dump_req(&tm_req, sizeof(tm_req)/4);
3113 mpi3mr_soft_reset_handler(mrioc,
3114 MPI3MR_RESET_FROM_TM_TIMEOUT, 1);
3119 if (!(drv_cmd->state & MPI3MR_CMD_REPLY_VALID)) {
3120 dprint_tm(mrioc, "invalid task management reply message\n");
3125 tm_reply = (struct mpi3_scsi_task_mgmt_reply *)drv_cmd->reply;
3127 switch (drv_cmd->ioc_status) {
3128 case MPI3_IOCSTATUS_SUCCESS:
3129 *resp_code = le32_to_cpu(tm_reply->response_data) &
3130 MPI3MR_RI_MASK_RESPCODE;
3132 case MPI3_IOCSTATUS_SCSI_IOC_TERMINATED:
3133 *resp_code = MPI3_SCSITASKMGMT_RSPCODE_TM_COMPLETE;
3137 "task management request to handle(0x%04x) is failed with ioc_status(0x%04x) log_info(0x%08x)\n",
3138 handle, drv_cmd->ioc_status, drv_cmd->ioc_loginfo);
3143 switch (*resp_code) {
3144 case MPI3_SCSITASKMGMT_RSPCODE_TM_SUCCEEDED:
3145 case MPI3_SCSITASKMGMT_RSPCODE_TM_COMPLETE:
3147 case MPI3_SCSITASKMGMT_RSPCODE_IO_QUEUED_ON_IOC:
3148 if (tm_type != MPI3_SCSITASKMGMT_TASKTYPE_QUERY_TASK)
3157 "task management request type(%d) completed for handle(0x%04x) with ioc_status(0x%04x), log_info(0x%08x), termination_count(%d), response:%s(0x%x)\n",
3158 tm_type, handle, drv_cmd->ioc_status, drv_cmd->ioc_loginfo,
3159 le32_to_cpu(tm_reply->termination_count),
3160 mpi3mr_tm_response_name(*resp_code), *resp_code);
3163 mpi3mr_ioc_disable_intr(mrioc);
3164 mpi3mr_poll_pend_io_completions(mrioc);
3165 mpi3mr_ioc_enable_intr(mrioc);
3166 mpi3mr_poll_pend_io_completions(mrioc);
3169 case MPI3_SCSITASKMGMT_TASKTYPE_TARGET_RESET:
3170 if (!scsi_tgt_priv_data)
3172 scsi_tgt_priv_data->pend_count = 0;
3173 blk_mq_tagset_busy_iter(&mrioc->shost->tag_set,
3174 mpi3mr_count_tgt_pending,
3175 (void *)scsi_tgt_priv_data->starget);
3177 case MPI3_SCSITASKMGMT_TASKTYPE_LOGICAL_UNIT_RESET:
3178 if (!sdev_priv_data)
3180 sdev_priv_data->pend_count = 0;
3181 blk_mq_tagset_busy_iter(&mrioc->shost->tag_set,
3182 mpi3mr_count_dev_pending, (void *)sdev);
3189 drv_cmd->state = MPI3MR_CMD_NOTUSED;
3190 mutex_unlock(&drv_cmd->mutex);
3191 if (scsi_tgt_priv_data)
3192 atomic_dec_if_positive(&scsi_tgt_priv_data->block_io);
3194 mpi3mr_tgtdev_put(tgtdev);
3200 * mpi3mr_bios_param - BIOS param callback
3201 * @sdev: SCSI device reference
3202 * @bdev: Block device reference
3203 * @capacity: Capacity in logical sectors
3204 * @params: Parameter array
3206 * Just the parameters with heads/secots/cylinders.
3210 static int mpi3mr_bios_param(struct scsi_device *sdev,
3211 struct block_device *bdev, sector_t capacity, int params[])
3221 dummy = heads * sectors;
3222 cylinders = capacity;
3223 sector_div(cylinders, dummy);
3225 if ((ulong)capacity >= 0x200000) {
3228 dummy = heads * sectors;
3229 cylinders = capacity;
3230 sector_div(cylinders, dummy);
3234 params[1] = sectors;
3235 params[2] = cylinders;
3240 * mpi3mr_map_queues - Map queues callback handler
3241 * @shost: SCSI host reference
3243 * Maps default and poll queues.
3245 * Return: return zero.
3247 static int mpi3mr_map_queues(struct Scsi_Host *shost)
3249 struct mpi3mr_ioc *mrioc = shost_priv(shost);
3250 int i, qoff, offset;
3251 struct blk_mq_queue_map *map = NULL;
3253 offset = mrioc->op_reply_q_offset;
3255 for (i = 0, qoff = 0; i < HCTX_MAX_TYPES; i++) {
3256 map = &shost->tag_set.map[i];
3260 if (i == HCTX_TYPE_DEFAULT)
3261 map->nr_queues = mrioc->default_qcount;
3262 else if (i == HCTX_TYPE_POLL)
3263 map->nr_queues = mrioc->active_poll_qcount;
3265 if (!map->nr_queues) {
3266 BUG_ON(i == HCTX_TYPE_DEFAULT);
3271 * The poll queue(s) doesn't have an IRQ (and hence IRQ
3272 * affinity), so use the regular blk-mq cpu mapping
3274 map->queue_offset = qoff;
3275 if (i != HCTX_TYPE_POLL)
3276 blk_mq_pci_map_queues(map, mrioc->pdev, offset);
3278 blk_mq_map_queues(map);
3280 qoff += map->nr_queues;
3281 offset += map->nr_queues;
3289 * mpi3mr_get_fw_pending_ios - Calculate pending I/O count
3290 * @mrioc: Adapter instance reference
3292 * Calculate the pending I/Os for the controller and return.
3294 * Return: Number of pending I/Os
3296 static inline int mpi3mr_get_fw_pending_ios(struct mpi3mr_ioc *mrioc)
3301 for (i = 0; i < mrioc->num_op_reply_q; i++)
3302 pend_ios += atomic_read(&mrioc->op_reply_qinfo[i].pend_ios);
3307 * mpi3mr_print_pending_host_io - print pending I/Os
3308 * @mrioc: Adapter instance reference
3310 * Print number of pending I/Os and each I/O details prior to
3311 * reset for debug purpose.
3315 static void mpi3mr_print_pending_host_io(struct mpi3mr_ioc *mrioc)
3317 struct Scsi_Host *shost = mrioc->shost;
3319 ioc_info(mrioc, "%s :Pending commands prior to reset: %d\n",
3320 __func__, mpi3mr_get_fw_pending_ios(mrioc));
3321 blk_mq_tagset_busy_iter(&shost->tag_set,
3322 mpi3mr_print_scmd, (void *)mrioc);
3326 * mpi3mr_wait_for_host_io - block for I/Os to complete
3327 * @mrioc: Adapter instance reference
3328 * @timeout: time out in seconds
3329 * Waits for pending I/Os for the given adapter to complete or
3330 * to hit the timeout.
3334 void mpi3mr_wait_for_host_io(struct mpi3mr_ioc *mrioc, u32 timeout)
3336 enum mpi3mr_iocstate iocstate;
3339 iocstate = mpi3mr_get_iocstate(mrioc);
3340 if (iocstate != MRIOC_STATE_READY)
3343 if (!mpi3mr_get_fw_pending_ios(mrioc))
3346 "%s :Waiting for %d seconds prior to reset for %d I/O\n",
3347 __func__, timeout, mpi3mr_get_fw_pending_ios(mrioc));
3349 for (i = 0; i < timeout; i++) {
3350 if (!mpi3mr_get_fw_pending_ios(mrioc))
3352 iocstate = mpi3mr_get_iocstate(mrioc);
3353 if (iocstate != MRIOC_STATE_READY)
3358 ioc_info(mrioc, "%s :Pending I/Os after wait is: %d\n", __func__,
3359 mpi3mr_get_fw_pending_ios(mrioc));
3363 * mpi3mr_eh_host_reset - Host reset error handling callback
3364 * @scmd: SCSI command reference
3366 * Issue controller reset if the scmd is for a Physical Device,
3367 * if the scmd is for RAID volume, then wait for
3368 * MPI3MR_RAID_ERRREC_RESET_TIMEOUT and checke whether any
3369 * pending I/Os prior to issuing reset to the controller.
3371 * Return: SUCCESS of successful reset else FAILED
3373 static int mpi3mr_eh_host_reset(struct scsi_cmnd *scmd)
3375 struct mpi3mr_ioc *mrioc = shost_priv(scmd->device->host);
3376 struct mpi3mr_stgt_priv_data *stgt_priv_data;
3377 struct mpi3mr_sdev_priv_data *sdev_priv_data;
3378 u8 dev_type = MPI3_DEVICE_DEVFORM_VD;
3379 int retval = FAILED, ret;
3381 sdev_priv_data = scmd->device->hostdata;
3382 if (sdev_priv_data && sdev_priv_data->tgt_priv_data) {
3383 stgt_priv_data = sdev_priv_data->tgt_priv_data;
3384 dev_type = stgt_priv_data->dev_type;
3387 if (dev_type == MPI3_DEVICE_DEVFORM_VD) {
3388 mpi3mr_wait_for_host_io(mrioc,
3389 MPI3MR_RAID_ERRREC_RESET_TIMEOUT);
3390 if (!mpi3mr_get_fw_pending_ios(mrioc)) {
3396 mpi3mr_print_pending_host_io(mrioc);
3397 ret = mpi3mr_soft_reset_handler(mrioc,
3398 MPI3MR_RESET_FROM_EH_HOS, 1);
3404 sdev_printk(KERN_INFO, scmd->device,
3405 "Host reset is %s for scmd(%p)\n",
3406 ((retval == SUCCESS) ? "SUCCESS" : "FAILED"), scmd);
3412 * mpi3mr_eh_target_reset - Target reset error handling callback
3413 * @scmd: SCSI command reference
3415 * Issue Target reset Task Management and verify the scmd is
3416 * terminated successfully and return status accordingly.
3418 * Return: SUCCESS of successful termination of the scmd else
3421 static int mpi3mr_eh_target_reset(struct scsi_cmnd *scmd)
3423 struct mpi3mr_ioc *mrioc = shost_priv(scmd->device->host);
3424 struct mpi3mr_stgt_priv_data *stgt_priv_data;
3425 struct mpi3mr_sdev_priv_data *sdev_priv_data;
3428 int retval = FAILED, ret = 0;
3430 sdev_printk(KERN_INFO, scmd->device,
3431 "Attempting Target Reset! scmd(%p)\n", scmd);
3432 scsi_print_command(scmd);
3434 sdev_priv_data = scmd->device->hostdata;
3435 if (!sdev_priv_data || !sdev_priv_data->tgt_priv_data) {
3436 sdev_printk(KERN_INFO, scmd->device,
3437 "SCSI device is not available\n");
3442 stgt_priv_data = sdev_priv_data->tgt_priv_data;
3443 dev_handle = stgt_priv_data->dev_handle;
3444 if (stgt_priv_data->dev_removed) {
3445 sdev_printk(KERN_INFO, scmd->device,
3446 "%s:target(handle = 0x%04x) is removed, target reset is not issued\n",
3447 mrioc->name, dev_handle);
3451 sdev_printk(KERN_INFO, scmd->device,
3452 "Target Reset is issued to handle(0x%04x)\n",
3455 ret = mpi3mr_issue_tm(mrioc,
3456 MPI3_SCSITASKMGMT_TASKTYPE_TARGET_RESET, dev_handle,
3457 sdev_priv_data->lun_id, MPI3MR_HOSTTAG_BLK_TMS,
3458 MPI3MR_RESETTM_TIMEOUT, &mrioc->host_tm_cmds, &resp_code, scmd);
3463 if (stgt_priv_data->pend_count) {
3464 sdev_printk(KERN_INFO, scmd->device,
3465 "%s: target has %d pending commands, target reset is failed\n",
3466 mrioc->name, stgt_priv_data->pend_count);
3472 sdev_printk(KERN_INFO, scmd->device,
3473 "%s: target reset is %s for scmd(%p)\n", mrioc->name,
3474 ((retval == SUCCESS) ? "SUCCESS" : "FAILED"), scmd);
3480 * mpi3mr_eh_dev_reset- Device reset error handling callback
3481 * @scmd: SCSI command reference
3483 * Issue lun reset Task Management and verify the scmd is
3484 * terminated successfully and return status accordingly.
3486 * Return: SUCCESS of successful termination of the scmd else
3489 static int mpi3mr_eh_dev_reset(struct scsi_cmnd *scmd)
3491 struct mpi3mr_ioc *mrioc = shost_priv(scmd->device->host);
3492 struct mpi3mr_stgt_priv_data *stgt_priv_data;
3493 struct mpi3mr_sdev_priv_data *sdev_priv_data;
3496 int retval = FAILED, ret = 0;
3498 sdev_printk(KERN_INFO, scmd->device,
3499 "Attempting Device(lun) Reset! scmd(%p)\n", scmd);
3500 scsi_print_command(scmd);
3502 sdev_priv_data = scmd->device->hostdata;
3503 if (!sdev_priv_data || !sdev_priv_data->tgt_priv_data) {
3504 sdev_printk(KERN_INFO, scmd->device,
3505 "SCSI device is not available\n");
3510 stgt_priv_data = sdev_priv_data->tgt_priv_data;
3511 dev_handle = stgt_priv_data->dev_handle;
3512 if (stgt_priv_data->dev_removed) {
3513 sdev_printk(KERN_INFO, scmd->device,
3514 "%s: device(handle = 0x%04x) is removed, device(LUN) reset is not issued\n",
3515 mrioc->name, dev_handle);
3519 sdev_printk(KERN_INFO, scmd->device,
3520 "Device(lun) Reset is issued to handle(0x%04x)\n", dev_handle);
3522 ret = mpi3mr_issue_tm(mrioc,
3523 MPI3_SCSITASKMGMT_TASKTYPE_LOGICAL_UNIT_RESET, dev_handle,
3524 sdev_priv_data->lun_id, MPI3MR_HOSTTAG_BLK_TMS,
3525 MPI3MR_RESETTM_TIMEOUT, &mrioc->host_tm_cmds, &resp_code, scmd);
3530 if (sdev_priv_data->pend_count) {
3531 sdev_printk(KERN_INFO, scmd->device,
3532 "%s: device has %d pending commands, device(LUN) reset is failed\n",
3533 mrioc->name, sdev_priv_data->pend_count);
3538 sdev_printk(KERN_INFO, scmd->device,
3539 "%s: device(LUN) reset is %s for scmd(%p)\n", mrioc->name,
3540 ((retval == SUCCESS) ? "SUCCESS" : "FAILED"), scmd);
3546 * mpi3mr_scan_start - Scan start callback handler
3547 * @shost: SCSI host reference
3549 * Issue port enable request asynchronously.
3553 static void mpi3mr_scan_start(struct Scsi_Host *shost)
3555 struct mpi3mr_ioc *mrioc = shost_priv(shost);
3557 mrioc->scan_started = 1;
3558 ioc_info(mrioc, "%s :Issuing Port Enable\n", __func__);
3559 if (mpi3mr_issue_port_enable(mrioc, 1)) {
3560 ioc_err(mrioc, "%s :Issuing port enable failed\n", __func__);
3561 mrioc->scan_started = 0;
3562 mrioc->scan_failed = MPI3_IOCSTATUS_INTERNAL_ERROR;
3567 * mpi3mr_scan_finished - Scan finished callback handler
3568 * @shost: SCSI host reference
3569 * @time: Jiffies from the scan start
3571 * Checks whether the port enable is completed or timedout or
3572 * failed and set the scan status accordingly after taking any
3573 * recovery if required.
3575 * Return: 1 on scan finished or timed out, 0 for in progress
3577 static int mpi3mr_scan_finished(struct Scsi_Host *shost,
3580 struct mpi3mr_ioc *mrioc = shost_priv(shost);
3581 u32 pe_timeout = MPI3MR_PORTENABLE_TIMEOUT;
3582 u32 ioc_status = readl(&mrioc->sysif_regs->ioc_status);
3584 if ((ioc_status & MPI3_SYSIF_IOC_STATUS_RESET_HISTORY) ||
3585 (ioc_status & MPI3_SYSIF_IOC_STATUS_FAULT)) {
3586 ioc_err(mrioc, "port enable failed due to fault or reset\n");
3587 mpi3mr_print_fault_info(mrioc);
3588 mrioc->scan_failed = MPI3_IOCSTATUS_INTERNAL_ERROR;
3589 mrioc->scan_started = 0;
3590 mrioc->init_cmds.is_waiting = 0;
3591 mrioc->init_cmds.callback = NULL;
3592 mrioc->init_cmds.state = MPI3MR_CMD_NOTUSED;
3595 if (time >= (pe_timeout * HZ)) {
3596 ioc_err(mrioc, "port enable failed due to time out\n");
3597 mpi3mr_check_rh_fault_ioc(mrioc,
3598 MPI3MR_RESET_FROM_PE_TIMEOUT);
3599 mrioc->scan_failed = MPI3_IOCSTATUS_INTERNAL_ERROR;
3600 mrioc->scan_started = 0;
3601 mrioc->init_cmds.is_waiting = 0;
3602 mrioc->init_cmds.callback = NULL;
3603 mrioc->init_cmds.state = MPI3MR_CMD_NOTUSED;
3606 if (mrioc->scan_started)
3609 if (mrioc->scan_failed) {
3611 "port enable failed with status=0x%04x\n",
3612 mrioc->scan_failed);
3614 ioc_info(mrioc, "port enable is successfully completed\n");
3616 mpi3mr_start_watchdog(mrioc);
3617 mrioc->is_driver_loading = 0;
3618 mrioc->stop_bsgs = 0;
3623 * mpi3mr_slave_destroy - Slave destroy callback handler
3624 * @sdev: SCSI device reference
3626 * Cleanup and free per device(lun) private data.
3630 static void mpi3mr_slave_destroy(struct scsi_device *sdev)
3632 struct Scsi_Host *shost;
3633 struct mpi3mr_ioc *mrioc;
3634 struct mpi3mr_stgt_priv_data *scsi_tgt_priv_data;
3635 struct mpi3mr_tgt_dev *tgt_dev;
3636 unsigned long flags;
3637 struct scsi_target *starget;
3639 if (!sdev->hostdata)
3642 starget = scsi_target(sdev);
3643 shost = dev_to_shost(&starget->dev);
3644 mrioc = shost_priv(shost);
3645 scsi_tgt_priv_data = starget->hostdata;
3647 scsi_tgt_priv_data->num_luns--;
3649 spin_lock_irqsave(&mrioc->tgtdev_lock, flags);
3650 tgt_dev = __mpi3mr_get_tgtdev_by_perst_id(mrioc, starget->id);
3651 if (tgt_dev && (!scsi_tgt_priv_data->num_luns))
3652 tgt_dev->starget = NULL;
3654 mpi3mr_tgtdev_put(tgt_dev);
3655 spin_unlock_irqrestore(&mrioc->tgtdev_lock, flags);
3657 kfree(sdev->hostdata);
3658 sdev->hostdata = NULL;
3662 * mpi3mr_target_destroy - Target destroy callback handler
3663 * @starget: SCSI target reference
3665 * Cleanup and free per target private data.
3669 static void mpi3mr_target_destroy(struct scsi_target *starget)
3671 struct Scsi_Host *shost;
3672 struct mpi3mr_ioc *mrioc;
3673 struct mpi3mr_stgt_priv_data *scsi_tgt_priv_data;
3674 struct mpi3mr_tgt_dev *tgt_dev;
3675 unsigned long flags;
3677 if (!starget->hostdata)
3680 shost = dev_to_shost(&starget->dev);
3681 mrioc = shost_priv(shost);
3682 scsi_tgt_priv_data = starget->hostdata;
3684 spin_lock_irqsave(&mrioc->tgtdev_lock, flags);
3685 tgt_dev = __mpi3mr_get_tgtdev_from_tgtpriv(mrioc, scsi_tgt_priv_data);
3686 if (tgt_dev && (tgt_dev->starget == starget) &&
3687 (tgt_dev->perst_id == starget->id))
3688 tgt_dev->starget = NULL;
3690 scsi_tgt_priv_data->tgt_dev = NULL;
3691 scsi_tgt_priv_data->perst_id = 0;
3692 mpi3mr_tgtdev_put(tgt_dev);
3693 mpi3mr_tgtdev_put(tgt_dev);
3695 spin_unlock_irqrestore(&mrioc->tgtdev_lock, flags);
3697 kfree(starget->hostdata);
3698 starget->hostdata = NULL;
3702 * mpi3mr_slave_configure - Slave configure callback handler
3703 * @sdev: SCSI device reference
3705 * Configure queue depth, max hardware sectors and virt boundary
3710 static int mpi3mr_slave_configure(struct scsi_device *sdev)
3712 struct scsi_target *starget;
3713 struct Scsi_Host *shost;
3714 struct mpi3mr_ioc *mrioc;
3715 struct mpi3mr_tgt_dev *tgt_dev;
3716 unsigned long flags;
3719 starget = scsi_target(sdev);
3720 shost = dev_to_shost(&starget->dev);
3721 mrioc = shost_priv(shost);
3723 spin_lock_irqsave(&mrioc->tgtdev_lock, flags);
3724 tgt_dev = __mpi3mr_get_tgtdev_by_perst_id(mrioc, starget->id);
3725 spin_unlock_irqrestore(&mrioc->tgtdev_lock, flags);
3729 mpi3mr_change_queue_depth(sdev, tgt_dev->q_depth);
3731 sdev->eh_timeout = MPI3MR_EH_SCMD_TIMEOUT;
3732 blk_queue_rq_timeout(sdev->request_queue, MPI3MR_SCMD_TIMEOUT);
3734 switch (tgt_dev->dev_type) {
3735 case MPI3_DEVICE_DEVFORM_PCIE:
3736 /*The block layer hw sector size = 512*/
3737 if ((tgt_dev->dev_spec.pcie_inf.dev_info &
3738 MPI3_DEVICE0_PCIE_DEVICE_INFO_TYPE_MASK) ==
3739 MPI3_DEVICE0_PCIE_DEVICE_INFO_TYPE_NVME_DEVICE) {
3740 blk_queue_max_hw_sectors(sdev->request_queue,
3741 tgt_dev->dev_spec.pcie_inf.mdts / 512);
3742 if (tgt_dev->dev_spec.pcie_inf.pgsz == 0)
3743 blk_queue_virt_boundary(sdev->request_queue,
3744 ((1 << MPI3MR_DEFAULT_PGSZEXP) - 1));
3746 blk_queue_virt_boundary(sdev->request_queue,
3747 ((1 << tgt_dev->dev_spec.pcie_inf.pgsz) - 1));
3754 mpi3mr_tgtdev_put(tgt_dev);
3760 * mpi3mr_slave_alloc -Slave alloc callback handler
3761 * @sdev: SCSI device reference
3763 * Allocate per device(lun) private data and initialize it.
3765 * Return: 0 on success -ENOMEM on memory allocation failure.
3767 static int mpi3mr_slave_alloc(struct scsi_device *sdev)
3769 struct Scsi_Host *shost;
3770 struct mpi3mr_ioc *mrioc;
3771 struct mpi3mr_stgt_priv_data *scsi_tgt_priv_data;
3772 struct mpi3mr_tgt_dev *tgt_dev;
3773 struct mpi3mr_sdev_priv_data *scsi_dev_priv_data;
3774 unsigned long flags;
3775 struct scsi_target *starget;
3778 starget = scsi_target(sdev);
3779 shost = dev_to_shost(&starget->dev);
3780 mrioc = shost_priv(shost);
3781 scsi_tgt_priv_data = starget->hostdata;
3783 spin_lock_irqsave(&mrioc->tgtdev_lock, flags);
3784 tgt_dev = __mpi3mr_get_tgtdev_by_perst_id(mrioc, starget->id);
3787 if (tgt_dev->starget == NULL)
3788 tgt_dev->starget = starget;
3789 mpi3mr_tgtdev_put(tgt_dev);
3792 spin_unlock_irqrestore(&mrioc->tgtdev_lock, flags);
3796 spin_unlock_irqrestore(&mrioc->tgtdev_lock, flags);
3798 scsi_dev_priv_data = kzalloc(sizeof(*scsi_dev_priv_data), GFP_KERNEL);
3799 if (!scsi_dev_priv_data)
3802 scsi_dev_priv_data->lun_id = sdev->lun;
3803 scsi_dev_priv_data->tgt_priv_data = scsi_tgt_priv_data;
3804 sdev->hostdata = scsi_dev_priv_data;
3806 scsi_tgt_priv_data->num_luns++;
3812 * mpi3mr_target_alloc - Target alloc callback handler
3813 * @starget: SCSI target reference
3815 * Allocate per target private data and initialize it.
3817 * Return: 0 on success -ENOMEM on memory allocation failure.
3819 static int mpi3mr_target_alloc(struct scsi_target *starget)
3821 struct Scsi_Host *shost = dev_to_shost(&starget->dev);
3822 struct mpi3mr_ioc *mrioc = shost_priv(shost);
3823 struct mpi3mr_stgt_priv_data *scsi_tgt_priv_data;
3824 struct mpi3mr_tgt_dev *tgt_dev;
3825 unsigned long flags;
3828 scsi_tgt_priv_data = kzalloc(sizeof(*scsi_tgt_priv_data), GFP_KERNEL);
3829 if (!scsi_tgt_priv_data)
3832 starget->hostdata = scsi_tgt_priv_data;
3834 spin_lock_irqsave(&mrioc->tgtdev_lock, flags);
3835 tgt_dev = __mpi3mr_get_tgtdev_by_perst_id(mrioc, starget->id);
3836 if (tgt_dev && !tgt_dev->is_hidden) {
3837 scsi_tgt_priv_data->starget = starget;
3838 scsi_tgt_priv_data->dev_handle = tgt_dev->dev_handle;
3839 scsi_tgt_priv_data->perst_id = tgt_dev->perst_id;
3840 scsi_tgt_priv_data->dev_type = tgt_dev->dev_type;
3841 scsi_tgt_priv_data->tgt_dev = tgt_dev;
3842 tgt_dev->starget = starget;
3843 atomic_set(&scsi_tgt_priv_data->block_io, 0);
3847 spin_unlock_irqrestore(&mrioc->tgtdev_lock, flags);
3853 * mpi3mr_check_return_unmap - Whether an unmap is allowed
3854 * @mrioc: Adapter instance reference
3855 * @scmd: SCSI Command reference
3857 * The controller hardware cannot handle certain unmap commands
3858 * for NVMe drives, this routine checks those and return true
3859 * and completes the SCSI command with proper status and sense
3862 * Return: TRUE for not allowed unmap, FALSE otherwise.
3864 static bool mpi3mr_check_return_unmap(struct mpi3mr_ioc *mrioc,
3865 struct scsi_cmnd *scmd)
3868 u16 param_len, desc_len, trunc_param_len;
3870 trunc_param_len = param_len = get_unaligned_be16(scmd->cmnd + 7);
3872 if (mrioc->pdev->revision) {
3873 if ((param_len > 24) && ((param_len - 8) & 0xF)) {
3874 trunc_param_len -= (param_len - 8) & 0xF;
3875 dprint_scsi_command(mrioc, scmd, MPI3_DEBUG_SCSI_ERROR);
3876 dprint_scsi_err(mrioc,
3877 "truncating param_len from (%d) to (%d)\n",
3878 param_len, trunc_param_len);
3879 put_unaligned_be16(trunc_param_len, scmd->cmnd + 7);
3880 dprint_scsi_command(mrioc, scmd, MPI3_DEBUG_SCSI_ERROR);
3887 "%s: cdb received with zero parameter length\n",
3889 scsi_print_command(scmd);
3890 scmd->result = DID_OK << 16;
3895 if (param_len < 24) {
3897 "%s: cdb received with invalid param_len: %d\n",
3898 __func__, param_len);
3899 scsi_print_command(scmd);
3900 scmd->result = SAM_STAT_CHECK_CONDITION;
3901 scsi_build_sense_buffer(0, scmd->sense_buffer, ILLEGAL_REQUEST,
3906 if (param_len != scsi_bufflen(scmd)) {
3908 "%s: cdb received with param_len: %d bufflen: %d\n",
3909 __func__, param_len, scsi_bufflen(scmd));
3910 scsi_print_command(scmd);
3911 scmd->result = SAM_STAT_CHECK_CONDITION;
3912 scsi_build_sense_buffer(0, scmd->sense_buffer, ILLEGAL_REQUEST,
3917 buf = kzalloc(scsi_bufflen(scmd), GFP_ATOMIC);
3919 scsi_print_command(scmd);
3920 scmd->result = SAM_STAT_CHECK_CONDITION;
3921 scsi_build_sense_buffer(0, scmd->sense_buffer, ILLEGAL_REQUEST,
3926 scsi_sg_copy_to_buffer(scmd, buf, scsi_bufflen(scmd));
3927 desc_len = get_unaligned_be16(&buf[2]);
3929 if (desc_len < 16) {
3931 "%s: Invalid descriptor length in param list: %d\n",
3932 __func__, desc_len);
3933 scsi_print_command(scmd);
3934 scmd->result = SAM_STAT_CHECK_CONDITION;
3935 scsi_build_sense_buffer(0, scmd->sense_buffer, ILLEGAL_REQUEST,
3942 if (param_len > (desc_len + 8)) {
3943 trunc_param_len = desc_len + 8;
3944 scsi_print_command(scmd);
3945 dprint_scsi_err(mrioc,
3946 "truncating param_len(%d) to desc_len+8(%d)\n",
3947 param_len, trunc_param_len);
3948 put_unaligned_be16(trunc_param_len, scmd->cmnd + 7);
3949 scsi_print_command(scmd);
3957 * mpi3mr_allow_scmd_to_fw - Command is allowed during shutdown
3958 * @scmd: SCSI Command reference
3960 * Checks whether a cdb is allowed during shutdown or not.
3962 * Return: TRUE for allowed commands, FALSE otherwise.
3965 inline bool mpi3mr_allow_scmd_to_fw(struct scsi_cmnd *scmd)
3967 switch (scmd->cmnd[0]) {
3968 case SYNCHRONIZE_CACHE:
3977 * mpi3mr_qcmd - I/O request despatcher
3978 * @shost: SCSI Host reference
3979 * @scmd: SCSI Command reference
3981 * Issues the SCSI Command as an MPI3 request.
3983 * Return: 0 on successful queueing of the request or if the
3984 * request is completed with failure.
3985 * SCSI_MLQUEUE_DEVICE_BUSY when the device is busy.
3986 * SCSI_MLQUEUE_HOST_BUSY when the host queue is full.
3988 static int mpi3mr_qcmd(struct Scsi_Host *shost,
3989 struct scsi_cmnd *scmd)
3991 struct mpi3mr_ioc *mrioc = shost_priv(shost);
3992 struct mpi3mr_stgt_priv_data *stgt_priv_data;
3993 struct mpi3mr_sdev_priv_data *sdev_priv_data;
3994 struct scmd_priv *scmd_priv_data = NULL;
3995 struct mpi3_scsi_io_request *scsiio_req = NULL;
3996 struct op_req_qinfo *op_req_q = NULL;
4000 u32 scsiio_flags = 0;
4001 struct request *rq = scsi_cmd_to_rq(scmd);
4005 if (mrioc->unrecoverable) {
4006 scmd->result = DID_ERROR << 16;
4011 sdev_priv_data = scmd->device->hostdata;
4012 if (!sdev_priv_data || !sdev_priv_data->tgt_priv_data) {
4013 scmd->result = DID_NO_CONNECT << 16;
4018 if (mrioc->stop_drv_processing &&
4019 !(mpi3mr_allow_scmd_to_fw(scmd))) {
4020 scmd->result = DID_NO_CONNECT << 16;
4025 if (mrioc->reset_in_progress) {
4026 retval = SCSI_MLQUEUE_HOST_BUSY;
4030 stgt_priv_data = sdev_priv_data->tgt_priv_data;
4032 dev_handle = stgt_priv_data->dev_handle;
4033 if (dev_handle == MPI3MR_INVALID_DEV_HANDLE) {
4034 scmd->result = DID_NO_CONNECT << 16;
4038 if (stgt_priv_data->dev_removed) {
4039 scmd->result = DID_NO_CONNECT << 16;
4044 if (atomic_read(&stgt_priv_data->block_io)) {
4045 if (mrioc->stop_drv_processing) {
4046 scmd->result = DID_NO_CONNECT << 16;
4050 retval = SCSI_MLQUEUE_DEVICE_BUSY;
4054 if (stgt_priv_data->dev_type == MPI3_DEVICE_DEVFORM_PCIE)
4056 if ((scmd->cmnd[0] == UNMAP) && is_pcie_dev &&
4057 (mrioc->pdev->device == MPI3_MFGPAGE_DEVID_SAS4116) &&
4058 mpi3mr_check_return_unmap(mrioc, scmd))
4061 host_tag = mpi3mr_host_tag_for_scmd(mrioc, scmd);
4062 if (host_tag == MPI3MR_HOSTTAG_INVALID) {
4063 scmd->result = DID_ERROR << 16;
4068 if (scmd->sc_data_direction == DMA_FROM_DEVICE)
4069 scsiio_flags = MPI3_SCSIIO_FLAGS_DATADIRECTION_READ;
4070 else if (scmd->sc_data_direction == DMA_TO_DEVICE)
4071 scsiio_flags = MPI3_SCSIIO_FLAGS_DATADIRECTION_WRITE;
4073 scsiio_flags = MPI3_SCSIIO_FLAGS_DATADIRECTION_NO_DATA_TRANSFER;
4075 scsiio_flags |= MPI3_SCSIIO_FLAGS_TASKATTRIBUTE_SIMPLEQ;
4077 if (sdev_priv_data->ncq_prio_enable) {
4078 iprio_class = IOPRIO_PRIO_CLASS(req_get_ioprio(rq));
4079 if (iprio_class == IOPRIO_CLASS_RT)
4080 scsiio_flags |= 1 << MPI3_SCSIIO_FLAGS_CMDPRI_SHIFT;
4083 if (scmd->cmd_len > 16)
4084 scsiio_flags |= MPI3_SCSIIO_FLAGS_CDB_GREATER_THAN_16;
4086 scmd_priv_data = scsi_cmd_priv(scmd);
4087 memset(scmd_priv_data->mpi3mr_scsiio_req, 0, MPI3MR_ADMIN_REQ_FRAME_SZ);
4088 scsiio_req = (struct mpi3_scsi_io_request *)scmd_priv_data->mpi3mr_scsiio_req;
4089 scsiio_req->function = MPI3_FUNCTION_SCSI_IO;
4090 scsiio_req->host_tag = cpu_to_le16(host_tag);
4092 mpi3mr_setup_eedp(mrioc, scmd, scsiio_req);
4094 memcpy(scsiio_req->cdb.cdb32, scmd->cmnd, scmd->cmd_len);
4095 scsiio_req->data_length = cpu_to_le32(scsi_bufflen(scmd));
4096 scsiio_req->dev_handle = cpu_to_le16(dev_handle);
4097 scsiio_req->flags = cpu_to_le32(scsiio_flags);
4098 int_to_scsilun(sdev_priv_data->lun_id,
4099 (struct scsi_lun *)scsiio_req->lun);
4101 if (mpi3mr_build_sg_scmd(mrioc, scmd, scsiio_req)) {
4102 mpi3mr_clear_scmd_priv(mrioc, scmd);
4103 retval = SCSI_MLQUEUE_HOST_BUSY;
4106 op_req_q = &mrioc->req_qinfo[scmd_priv_data->req_q_idx];
4108 if (mpi3mr_op_request_post(mrioc, op_req_q,
4109 scmd_priv_data->mpi3mr_scsiio_req)) {
4110 mpi3mr_clear_scmd_priv(mrioc, scmd);
4111 retval = SCSI_MLQUEUE_HOST_BUSY;
4119 static struct scsi_host_template mpi3mr_driver_template = {
4120 .module = THIS_MODULE,
4121 .name = "MPI3 Storage Controller",
4122 .proc_name = MPI3MR_DRIVER_NAME,
4123 .queuecommand = mpi3mr_qcmd,
4124 .target_alloc = mpi3mr_target_alloc,
4125 .slave_alloc = mpi3mr_slave_alloc,
4126 .slave_configure = mpi3mr_slave_configure,
4127 .target_destroy = mpi3mr_target_destroy,
4128 .slave_destroy = mpi3mr_slave_destroy,
4129 .scan_finished = mpi3mr_scan_finished,
4130 .scan_start = mpi3mr_scan_start,
4131 .change_queue_depth = mpi3mr_change_queue_depth,
4132 .eh_device_reset_handler = mpi3mr_eh_dev_reset,
4133 .eh_target_reset_handler = mpi3mr_eh_target_reset,
4134 .eh_host_reset_handler = mpi3mr_eh_host_reset,
4135 .bios_param = mpi3mr_bios_param,
4136 .map_queues = mpi3mr_map_queues,
4137 .mq_poll = mpi3mr_blk_mq_poll,
4141 .sg_tablesize = MPI3MR_SG_DEPTH,
4142 /* max xfer supported is 1M (2K in 512 byte sized sectors)
4144 .max_sectors = 2048,
4145 .cmd_per_lun = MPI3MR_MAX_CMDS_LUN,
4146 .max_segment_size = 0xffffffff,
4147 .track_queue_depth = 1,
4148 .cmd_size = sizeof(struct scmd_priv),
4149 .shost_groups = mpi3mr_host_groups,
4150 .sdev_groups = mpi3mr_dev_groups,
4154 * mpi3mr_init_drv_cmd - Initialize internal command tracker
4155 * @cmdptr: Internal command tracker
4156 * @host_tag: Host tag used for the specific command
4158 * Initialize the internal command tracker structure with
4159 * specified host tag.
4163 static inline void mpi3mr_init_drv_cmd(struct mpi3mr_drv_cmd *cmdptr,
4166 mutex_init(&cmdptr->mutex);
4167 cmdptr->reply = NULL;
4168 cmdptr->state = MPI3MR_CMD_NOTUSED;
4169 cmdptr->dev_handle = MPI3MR_INVALID_DEV_HANDLE;
4170 cmdptr->host_tag = host_tag;
4174 * osintfc_mrioc_security_status -Check controller secure status
4175 * @pdev: PCI device instance
4177 * Read the Device Serial Number capability from PCI config
4178 * space and decide whether the controller is secure or not.
4180 * Return: 0 on success, non-zero on failure.
4183 osintfc_mrioc_security_status(struct pci_dev *pdev)
4191 base = pci_find_ext_capability(pdev, PCI_EXT_CAP_ID_DSN);
4194 "%s: PCI_EXT_CAP_ID_DSN is not supported\n", __func__);
4198 pci_read_config_dword(pdev, base + 4, &cap_data);
4200 debug_status = cap_data & MPI3MR_CTLR_SECURE_DBG_STATUS_MASK;
4201 ctlr_status = cap_data & MPI3MR_CTLR_SECURITY_STATUS_MASK;
4203 switch (ctlr_status) {
4204 case MPI3MR_INVALID_DEVICE:
4206 "%s: Non secure ctlr (Invalid) is detected: DID: 0x%x: SVID: 0x%x: SDID: 0x%x\n",
4207 __func__, pdev->device, pdev->subsystem_vendor,
4208 pdev->subsystem_device);
4211 case MPI3MR_CONFIG_SECURE_DEVICE:
4213 dev_info(&pdev->dev,
4214 "%s: Config secure ctlr is detected\n",
4217 case MPI3MR_HARD_SECURE_DEVICE:
4219 case MPI3MR_TAMPERED_DEVICE:
4221 "%s: Non secure ctlr (Tampered) is detected: DID: 0x%x: SVID: 0x%x: SDID: 0x%x\n",
4222 __func__, pdev->device, pdev->subsystem_vendor,
4223 pdev->subsystem_device);
4231 if (!retval && debug_status) {
4233 "%s: Non secure ctlr (Secure Dbg) is detected: DID: 0x%x: SVID: 0x%x: SDID: 0x%x\n",
4234 __func__, pdev->device, pdev->subsystem_vendor,
4235 pdev->subsystem_device);
4243 * mpi3mr_probe - PCI probe callback
4244 * @pdev: PCI device instance
4245 * @id: PCI device ID details
4247 * controller initialization routine. Checks the security status
4248 * of the controller and if it is invalid or tampered return the
4249 * probe without initializing the controller. Otherwise,
4250 * allocate per adapter instance through shost_priv and
4251 * initialize controller specific data structures, initializae
4252 * the controller hardware, add shost to the SCSI subsystem.
4254 * Return: 0 on success, non-zero on failure.
4258 mpi3mr_probe(struct pci_dev *pdev, const struct pci_device_id *id)
4260 struct mpi3mr_ioc *mrioc = NULL;
4261 struct Scsi_Host *shost = NULL;
4264 if (osintfc_mrioc_security_status(pdev)) {
4265 warn_non_secure_ctlr = 1;
4266 return 1; /* For Invalid and Tampered device */
4269 shost = scsi_host_alloc(&mpi3mr_driver_template,
4270 sizeof(struct mpi3mr_ioc));
4276 mrioc = shost_priv(shost);
4277 mrioc->id = mrioc_ids++;
4278 sprintf(mrioc->driver_name, "%s", MPI3MR_DRIVER_NAME);
4279 sprintf(mrioc->name, "%s%d", mrioc->driver_name, mrioc->id);
4280 INIT_LIST_HEAD(&mrioc->list);
4281 spin_lock(&mrioc_list_lock);
4282 list_add_tail(&mrioc->list, &mrioc_list);
4283 spin_unlock(&mrioc_list_lock);
4285 spin_lock_init(&mrioc->admin_req_lock);
4286 spin_lock_init(&mrioc->reply_free_queue_lock);
4287 spin_lock_init(&mrioc->sbq_lock);
4288 spin_lock_init(&mrioc->fwevt_lock);
4289 spin_lock_init(&mrioc->tgtdev_lock);
4290 spin_lock_init(&mrioc->watchdog_lock);
4291 spin_lock_init(&mrioc->chain_buf_lock);
4293 INIT_LIST_HEAD(&mrioc->fwevt_list);
4294 INIT_LIST_HEAD(&mrioc->tgtdev_list);
4295 INIT_LIST_HEAD(&mrioc->delayed_rmhs_list);
4296 INIT_LIST_HEAD(&mrioc->delayed_evtack_cmds_list);
4298 mutex_init(&mrioc->reset_mutex);
4299 mpi3mr_init_drv_cmd(&mrioc->init_cmds, MPI3MR_HOSTTAG_INITCMDS);
4300 mpi3mr_init_drv_cmd(&mrioc->host_tm_cmds, MPI3MR_HOSTTAG_BLK_TMS);
4301 mpi3mr_init_drv_cmd(&mrioc->bsg_cmds, MPI3MR_HOSTTAG_BSG_CMDS);
4303 for (i = 0; i < MPI3MR_NUM_DEVRMCMD; i++)
4304 mpi3mr_init_drv_cmd(&mrioc->dev_rmhs_cmds[i],
4305 MPI3MR_HOSTTAG_DEVRMCMD_MIN + i);
4308 mrioc->enable_segqueue = true;
4310 init_waitqueue_head(&mrioc->reset_waitq);
4311 mrioc->logging_level = logging_level;
4312 mrioc->shost = shost;
4314 mrioc->stop_bsgs = 1;
4316 /* init shost parameters */
4317 shost->max_cmd_len = MPI3MR_MAX_CDB_LENGTH;
4318 shost->max_lun = -1;
4319 shost->unique_id = mrioc->id;
4321 shost->max_channel = 0;
4322 shost->max_id = 0xFFFFFFFF;
4325 scsi_host_set_prot(shost, prot_mask);
4327 prot_mask = SHOST_DIF_TYPE1_PROTECTION
4328 | SHOST_DIF_TYPE2_PROTECTION
4329 | SHOST_DIF_TYPE3_PROTECTION;
4330 scsi_host_set_prot(shost, prot_mask);
4334 "%s :host protection capabilities enabled %s%s%s%s%s%s%s\n",
4336 (prot_mask & SHOST_DIF_TYPE1_PROTECTION) ? " DIF1" : "",
4337 (prot_mask & SHOST_DIF_TYPE2_PROTECTION) ? " DIF2" : "",
4338 (prot_mask & SHOST_DIF_TYPE3_PROTECTION) ? " DIF3" : "",
4339 (prot_mask & SHOST_DIX_TYPE0_PROTECTION) ? " DIX0" : "",
4340 (prot_mask & SHOST_DIX_TYPE1_PROTECTION) ? " DIX1" : "",
4341 (prot_mask & SHOST_DIX_TYPE2_PROTECTION) ? " DIX2" : "",
4342 (prot_mask & SHOST_DIX_TYPE3_PROTECTION) ? " DIX3" : "");
4344 if (prot_guard_mask)
4345 scsi_host_set_guard(shost, (prot_guard_mask & 3));
4347 scsi_host_set_guard(shost, SHOST_DIX_GUARD_CRC);
4349 snprintf(mrioc->fwevt_worker_name, sizeof(mrioc->fwevt_worker_name),
4350 "%s%d_fwevt_wrkr", mrioc->driver_name, mrioc->id);
4351 mrioc->fwevt_worker_thread = alloc_ordered_workqueue(
4352 mrioc->fwevt_worker_name, 0);
4353 if (!mrioc->fwevt_worker_thread) {
4354 ioc_err(mrioc, "failure at %s:%d/%s()!\n",
4355 __FILE__, __LINE__, __func__);
4357 goto fwevtthread_failed;
4360 mrioc->is_driver_loading = 1;
4361 mrioc->cpu_count = num_online_cpus();
4362 if (mpi3mr_setup_resources(mrioc)) {
4363 ioc_err(mrioc, "setup resources failed\n");
4365 goto resource_alloc_failed;
4367 if (mpi3mr_init_ioc(mrioc)) {
4368 ioc_err(mrioc, "initializing IOC failed\n");
4370 goto init_ioc_failed;
4373 shost->nr_hw_queues = mrioc->num_op_reply_q;
4374 if (mrioc->active_poll_qcount)
4377 shost->can_queue = mrioc->max_host_ios;
4378 shost->sg_tablesize = MPI3MR_SG_DEPTH;
4379 shost->max_id = mrioc->facts.max_perids + 1;
4381 retval = scsi_add_host(shost, &pdev->dev);
4383 ioc_err(mrioc, "failure at %s:%d/%s()!\n",
4384 __FILE__, __LINE__, __func__);
4385 goto addhost_failed;
4388 scsi_scan_host(shost);
4389 mpi3mr_bsg_init(mrioc);
4393 mpi3mr_stop_watchdog(mrioc);
4394 mpi3mr_cleanup_ioc(mrioc);
4396 mpi3mr_free_mem(mrioc);
4397 mpi3mr_cleanup_resources(mrioc);
4398 resource_alloc_failed:
4399 destroy_workqueue(mrioc->fwevt_worker_thread);
4401 spin_lock(&mrioc_list_lock);
4402 list_del(&mrioc->list);
4403 spin_unlock(&mrioc_list_lock);
4404 scsi_host_put(shost);
4410 * mpi3mr_remove - PCI remove callback
4411 * @pdev: PCI device instance
4413 * Cleanup the IOC by issuing MUR and shutdown notification.
4414 * Free up all memory and resources associated with the
4415 * controllerand target devices, unregister the shost.
4419 static void mpi3mr_remove(struct pci_dev *pdev)
4421 struct Scsi_Host *shost = pci_get_drvdata(pdev);
4422 struct mpi3mr_ioc *mrioc;
4423 struct workqueue_struct *wq;
4424 unsigned long flags;
4425 struct mpi3mr_tgt_dev *tgtdev, *tgtdev_next;
4430 mrioc = shost_priv(shost);
4431 while (mrioc->reset_in_progress || mrioc->is_driver_loading)
4434 mpi3mr_bsg_exit(mrioc);
4435 mrioc->stop_drv_processing = 1;
4436 mpi3mr_cleanup_fwevt_list(mrioc);
4437 spin_lock_irqsave(&mrioc->fwevt_lock, flags);
4438 wq = mrioc->fwevt_worker_thread;
4439 mrioc->fwevt_worker_thread = NULL;
4440 spin_unlock_irqrestore(&mrioc->fwevt_lock, flags);
4442 destroy_workqueue(wq);
4443 scsi_remove_host(shost);
4445 list_for_each_entry_safe(tgtdev, tgtdev_next, &mrioc->tgtdev_list,
4447 mpi3mr_remove_tgtdev_from_host(mrioc, tgtdev);
4448 mpi3mr_tgtdev_del_from_list(mrioc, tgtdev);
4449 mpi3mr_tgtdev_put(tgtdev);
4451 mpi3mr_stop_watchdog(mrioc);
4452 mpi3mr_cleanup_ioc(mrioc);
4453 mpi3mr_free_mem(mrioc);
4454 mpi3mr_cleanup_resources(mrioc);
4456 spin_lock(&mrioc_list_lock);
4457 list_del(&mrioc->list);
4458 spin_unlock(&mrioc_list_lock);
4460 scsi_host_put(shost);
4464 * mpi3mr_shutdown - PCI shutdown callback
4465 * @pdev: PCI device instance
4467 * Free up all memory and resources associated with the
4472 static void mpi3mr_shutdown(struct pci_dev *pdev)
4474 struct Scsi_Host *shost = pci_get_drvdata(pdev);
4475 struct mpi3mr_ioc *mrioc;
4476 struct workqueue_struct *wq;
4477 unsigned long flags;
4482 mrioc = shost_priv(shost);
4483 while (mrioc->reset_in_progress || mrioc->is_driver_loading)
4486 mrioc->stop_drv_processing = 1;
4487 mpi3mr_cleanup_fwevt_list(mrioc);
4488 spin_lock_irqsave(&mrioc->fwevt_lock, flags);
4489 wq = mrioc->fwevt_worker_thread;
4490 mrioc->fwevt_worker_thread = NULL;
4491 spin_unlock_irqrestore(&mrioc->fwevt_lock, flags);
4493 destroy_workqueue(wq);
4495 mpi3mr_stop_watchdog(mrioc);
4496 mpi3mr_cleanup_ioc(mrioc);
4497 mpi3mr_cleanup_resources(mrioc);
4502 * mpi3mr_suspend - PCI power management suspend callback
4503 * @pdev: PCI device instance
4504 * @state: New power state
4506 * Change the power state to the given value and cleanup the IOC
4507 * by issuing MUR and shutdown notification
4511 static int mpi3mr_suspend(struct pci_dev *pdev, pm_message_t state)
4513 struct Scsi_Host *shost = pci_get_drvdata(pdev);
4514 struct mpi3mr_ioc *mrioc;
4515 pci_power_t device_state;
4520 mrioc = shost_priv(shost);
4521 while (mrioc->reset_in_progress || mrioc->is_driver_loading)
4523 mrioc->stop_drv_processing = 1;
4524 mpi3mr_cleanup_fwevt_list(mrioc);
4525 scsi_block_requests(shost);
4526 mpi3mr_stop_watchdog(mrioc);
4527 mpi3mr_cleanup_ioc(mrioc);
4529 device_state = pci_choose_state(pdev, state);
4530 ioc_info(mrioc, "pdev=0x%p, slot=%s, entering operating state [D%d]\n",
4531 pdev, pci_name(pdev), device_state);
4532 pci_save_state(pdev);
4533 mpi3mr_cleanup_resources(mrioc);
4534 pci_set_power_state(pdev, device_state);
4540 * mpi3mr_resume - PCI power management resume callback
4541 * @pdev: PCI device instance
4543 * Restore the power state to D0 and reinitialize the controller
4544 * and resume I/O operations to the target devices
4546 * Return: 0 on success, non-zero on failure
4548 static int mpi3mr_resume(struct pci_dev *pdev)
4550 struct Scsi_Host *shost = pci_get_drvdata(pdev);
4551 struct mpi3mr_ioc *mrioc;
4552 pci_power_t device_state = pdev->current_state;
4558 mrioc = shost_priv(shost);
4560 ioc_info(mrioc, "pdev=0x%p, slot=%s, previous operating state [D%d]\n",
4561 pdev, pci_name(pdev), device_state);
4562 pci_set_power_state(pdev, PCI_D0);
4563 pci_enable_wake(pdev, PCI_D0, 0);
4564 pci_restore_state(pdev);
4566 mrioc->cpu_count = num_online_cpus();
4567 r = mpi3mr_setup_resources(mrioc);
4569 ioc_info(mrioc, "%s: Setup resources failed[%d]\n",
4574 mrioc->stop_drv_processing = 0;
4575 mpi3mr_memset_buffers(mrioc);
4576 r = mpi3mr_reinit_ioc(mrioc, 1);
4578 ioc_err(mrioc, "resuming controller failed[%d]\n", r);
4581 scsi_unblock_requests(shost);
4582 mpi3mr_start_watchdog(mrioc);
4588 static const struct pci_device_id mpi3mr_pci_id_table[] = {
4590 PCI_DEVICE_SUB(MPI3_MFGPAGE_VENDORID_BROADCOM,
4591 MPI3_MFGPAGE_DEVID_SAS4116, PCI_ANY_ID, PCI_ANY_ID)
4595 MODULE_DEVICE_TABLE(pci, mpi3mr_pci_id_table);
4597 static struct pci_driver mpi3mr_pci_driver = {
4598 .name = MPI3MR_DRIVER_NAME,
4599 .id_table = mpi3mr_pci_id_table,
4600 .probe = mpi3mr_probe,
4601 .remove = mpi3mr_remove,
4602 .shutdown = mpi3mr_shutdown,
4604 .suspend = mpi3mr_suspend,
4605 .resume = mpi3mr_resume,
4609 static ssize_t event_counter_show(struct device_driver *dd, char *buf)
4611 return sprintf(buf, "%llu\n", atomic64_read(&event_counter));
4613 static DRIVER_ATTR_RO(event_counter);
4615 static int __init mpi3mr_init(void)
4619 pr_info("Loading %s version %s\n", MPI3MR_DRIVER_NAME,
4620 MPI3MR_DRIVER_VERSION);
4622 ret_val = pci_register_driver(&mpi3mr_pci_driver);
4624 pr_err("%s failed to load due to pci register driver failure\n",
4625 MPI3MR_DRIVER_NAME);
4629 ret_val = driver_create_file(&mpi3mr_pci_driver.driver,
4630 &driver_attr_event_counter);
4632 pci_unregister_driver(&mpi3mr_pci_driver);
4637 static void __exit mpi3mr_exit(void)
4639 if (warn_non_secure_ctlr)
4641 "Unloading %s version %s while managing a non secure controller\n",
4642 MPI3MR_DRIVER_NAME, MPI3MR_DRIVER_VERSION);
4644 pr_info("Unloading %s version %s\n", MPI3MR_DRIVER_NAME,
4645 MPI3MR_DRIVER_VERSION);
4647 driver_remove_file(&mpi3mr_pci_driver.driver,
4648 &driver_attr_event_counter);
4649 pci_unregister_driver(&mpi3mr_pci_driver);
4652 module_init(mpi3mr_init);
4653 module_exit(mpi3mr_exit);