2 * This file is provided under a dual BSD/GPLv2 license. When using or
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9 * This program is free software; you can redistribute it and/or modify
10 * it under the terms of version 2 of the GNU General Public License as
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15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
16 * General Public License for more details.
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56 #include <linux/completion.h>
57 #include <linux/irqflags.h>
59 #include <scsi/libsas.h>
60 #include "remote_device.h"
61 #include "remote_node_context.h"
68 * isci_task_refuse() - complete the request to the upper layer driver in
69 * the case where an I/O needs to be completed back in the submit path.
70 * @ihost: host on which the the request was queued
71 * @task: request to complete
72 * @response: response code for the completed task.
73 * @status: status code for the completed task.
76 static void isci_task_refuse(struct isci_host
*ihost
, struct sas_task
*task
,
77 enum service_response response
,
78 enum exec_status status
)
83 /* Normal notification (task_done) */
84 dev_dbg(&ihost
->pdev
->dev
, "%s: task = %p, response=%d, status=%d\n",
85 __func__
, task
, response
, status
);
87 spin_lock_irqsave(&task
->task_state_lock
, flags
);
89 task
->task_status
.resp
= response
;
90 task
->task_status
.stat
= status
;
92 /* Normal notification (task_done) */
93 task
->task_state_flags
|= SAS_TASK_STATE_DONE
;
94 task
->task_state_flags
&= ~(SAS_TASK_AT_INITIATOR
|
95 SAS_TASK_STATE_PENDING
);
96 task
->lldd_task
= NULL
;
97 spin_unlock_irqrestore(&task
->task_state_lock
, flags
);
99 task
->task_done(task
);
102 #define for_each_sas_task(num, task) \
103 for (; num > 0; num--,\
104 task = list_entry(task->list.next, struct sas_task, list))
107 static inline int isci_device_io_ready(struct isci_remote_device
*idev
,
108 struct sas_task
*task
)
110 return idev
? test_bit(IDEV_IO_READY
, &idev
->flags
) ||
111 (test_bit(IDEV_IO_NCQERROR
, &idev
->flags
) &&
112 isci_task_is_ncq_recovery(task
))
116 * isci_task_execute_task() - This function is one of the SAS Domain Template
117 * functions. This function is called by libsas to send a task down to
119 * @task: This parameter specifies the SAS task to send.
120 * @num: This parameter specifies the number of tasks to queue.
121 * @gfp_flags: This parameter specifies the context of this call.
123 * status, zero indicates success.
125 int isci_task_execute_task(struct sas_task
*task
, int num
, gfp_t gfp_flags
)
127 struct isci_host
*ihost
= dev_to_ihost(task
->dev
);
128 struct isci_remote_device
*idev
;
133 dev_dbg(&ihost
->pdev
->dev
, "%s: num=%d\n", __func__
, num
);
135 for_each_sas_task(num
, task
) {
136 enum sci_status status
= SCI_FAILURE
;
138 spin_lock_irqsave(&ihost
->scic_lock
, flags
);
139 idev
= isci_lookup_device(task
->dev
);
140 io_ready
= isci_device_io_ready(idev
, task
);
141 tag
= isci_alloc_tag(ihost
);
142 spin_unlock_irqrestore(&ihost
->scic_lock
, flags
);
144 dev_dbg(&ihost
->pdev
->dev
,
145 "task: %p, num: %d dev: %p idev: %p:%#lx cmd = %p\n",
146 task
, num
, task
->dev
, idev
, idev
? idev
->flags
: 0,
150 isci_task_refuse(ihost
, task
, SAS_TASK_UNDELIVERED
,
152 } else if (!io_ready
|| tag
== SCI_CONTROLLER_INVALID_IO_TAG
) {
153 /* Indicate QUEUE_FULL so that the scsi midlayer
156 isci_task_refuse(ihost
, task
, SAS_TASK_COMPLETE
,
159 /* There is a device and it's ready for I/O. */
160 spin_lock_irqsave(&task
->task_state_lock
, flags
);
162 if (task
->task_state_flags
& SAS_TASK_STATE_ABORTED
) {
163 /* The I/O was aborted. */
164 spin_unlock_irqrestore(&task
->task_state_lock
,
167 isci_task_refuse(ihost
, task
,
168 SAS_TASK_UNDELIVERED
,
169 SAM_STAT_TASK_ABORTED
);
171 task
->task_state_flags
|= SAS_TASK_AT_INITIATOR
;
172 spin_unlock_irqrestore(&task
->task_state_lock
, flags
);
174 /* build and send the request. */
175 status
= isci_request_execute(ihost
, idev
, task
, tag
);
177 if (status
!= SCI_SUCCESS
) {
179 spin_lock_irqsave(&task
->task_state_lock
, flags
);
180 /* Did not really start this command. */
181 task
->task_state_flags
&= ~SAS_TASK_AT_INITIATOR
;
182 spin_unlock_irqrestore(&task
->task_state_lock
, flags
);
184 if (test_bit(IDEV_GONE
, &idev
->flags
)) {
186 /* Indicate that the device
189 isci_task_refuse(ihost
, task
,
190 SAS_TASK_UNDELIVERED
,
193 /* Indicate QUEUE_FULL so that
194 * the scsi midlayer retries.
195 * If the request failed for
196 * remote device reasons, it
198 * SAS_TASK_UNDELIVERED next
201 isci_task_refuse(ihost
, task
,
208 if (status
!= SCI_SUCCESS
&& tag
!= SCI_CONTROLLER_INVALID_IO_TAG
) {
209 spin_lock_irqsave(&ihost
->scic_lock
, flags
);
210 /* command never hit the device, so just free
211 * the tci and skip the sequence increment
213 isci_tci_free(ihost
, ISCI_TAG_TCI(tag
));
214 spin_unlock_irqrestore(&ihost
->scic_lock
, flags
);
216 isci_put_device(idev
);
221 static struct isci_request
*isci_task_request_build(struct isci_host
*ihost
,
222 struct isci_remote_device
*idev
,
223 u16 tag
, struct isci_tmf
*isci_tmf
)
225 enum sci_status status
= SCI_FAILURE
;
226 struct isci_request
*ireq
= NULL
;
227 struct domain_device
*dev
;
229 dev_dbg(&ihost
->pdev
->dev
,
230 "%s: isci_tmf = %p\n", __func__
, isci_tmf
);
232 dev
= idev
->domain_dev
;
234 /* do common allocation and init of request object. */
235 ireq
= isci_tmf_request_from_tag(ihost
, isci_tmf
, tag
);
239 /* let the core do it's construct. */
240 status
= sci_task_request_construct(ihost
, idev
, tag
,
243 if (status
!= SCI_SUCCESS
) {
244 dev_warn(&ihost
->pdev
->dev
,
245 "%s: sci_task_request_construct failed - "
252 /* XXX convert to get this from task->tproto like other drivers */
253 if (dev
->dev_type
== SAS_END_DEVICE
) {
254 isci_tmf
->proto
= SAS_PROTOCOL_SSP
;
255 status
= sci_task_request_construct_ssp(ireq
);
256 if (status
!= SCI_SUCCESS
)
263 static int isci_task_execute_tmf(struct isci_host
*ihost
,
264 struct isci_remote_device
*idev
,
265 struct isci_tmf
*tmf
, unsigned long timeout_ms
)
267 DECLARE_COMPLETION_ONSTACK(completion
);
268 enum sci_task_status status
= SCI_TASK_FAILURE
;
269 struct isci_request
*ireq
;
270 int ret
= TMF_RESP_FUNC_FAILED
;
272 unsigned long timeleft
;
275 spin_lock_irqsave(&ihost
->scic_lock
, flags
);
276 tag
= isci_alloc_tag(ihost
);
277 spin_unlock_irqrestore(&ihost
->scic_lock
, flags
);
279 if (tag
== SCI_CONTROLLER_INVALID_IO_TAG
)
282 /* sanity check, return TMF_RESP_FUNC_FAILED
283 * if the device is not there and ready.
286 (!test_bit(IDEV_IO_READY
, &idev
->flags
) &&
287 !test_bit(IDEV_IO_NCQERROR
, &idev
->flags
))) {
288 dev_dbg(&ihost
->pdev
->dev
,
289 "%s: idev = %p not ready (%#lx)\n",
291 idev
, idev
? idev
->flags
: 0);
294 dev_dbg(&ihost
->pdev
->dev
,
298 /* Assign the pointer to the TMF's completion kernel wait structure. */
299 tmf
->complete
= &completion
;
300 tmf
->status
= SCI_FAILURE_TIMEOUT
;
302 ireq
= isci_task_request_build(ihost
, idev
, tag
, tmf
);
306 spin_lock_irqsave(&ihost
->scic_lock
, flags
);
308 /* start the TMF io. */
309 status
= sci_controller_start_task(ihost
, idev
, ireq
);
311 if (status
!= SCI_TASK_SUCCESS
) {
312 dev_dbg(&ihost
->pdev
->dev
,
313 "%s: start_io failed - status = 0x%x, request = %p\n",
317 spin_unlock_irqrestore(&ihost
->scic_lock
, flags
);
320 spin_unlock_irqrestore(&ihost
->scic_lock
, flags
);
322 /* The RNC must be unsuspended before the TMF can get a response. */
323 isci_remote_device_resume_from_abort(ihost
, idev
);
325 /* Wait for the TMF to complete, or a timeout. */
326 timeleft
= wait_for_completion_timeout(&completion
,
327 msecs_to_jiffies(timeout_ms
));
330 /* The TMF did not complete - this could be because
331 * of an unplug. Terminate the TMF request now.
333 isci_remote_device_suspend_terminate(ihost
, idev
, ireq
);
336 isci_print_tmf(ihost
, tmf
);
338 if (tmf
->status
== SCI_SUCCESS
)
339 ret
= TMF_RESP_FUNC_COMPLETE
;
340 else if (tmf
->status
== SCI_FAILURE_IO_RESPONSE_VALID
) {
341 dev_dbg(&ihost
->pdev
->dev
,
343 "SCI_FAILURE_IO_RESPONSE_VALID\n",
345 ret
= TMF_RESP_FUNC_COMPLETE
;
347 /* Else - leave the default "failed" status alone. */
349 dev_dbg(&ihost
->pdev
->dev
,
350 "%s: completed request = %p\n",
357 spin_lock_irqsave(&ihost
->scic_lock
, flags
);
358 isci_tci_free(ihost
, ISCI_TAG_TCI(tag
));
359 spin_unlock_irqrestore(&ihost
->scic_lock
, flags
);
364 static void isci_task_build_tmf(struct isci_tmf
*tmf
,
365 enum isci_tmf_function_codes code
)
367 memset(tmf
, 0, sizeof(*tmf
));
368 tmf
->tmf_code
= code
;
371 static void isci_task_build_abort_task_tmf(struct isci_tmf
*tmf
,
372 enum isci_tmf_function_codes code
,
373 struct isci_request
*old_request
)
375 isci_task_build_tmf(tmf
, code
);
376 tmf
->io_tag
= old_request
->io_tag
;
380 * isci_task_send_lu_reset_sas() - This function is called by of the SAS Domain
381 * Template functions.
382 * @lun: This parameter specifies the lun to be reset.
384 * status, zero indicates success.
386 static int isci_task_send_lu_reset_sas(
387 struct isci_host
*isci_host
,
388 struct isci_remote_device
*isci_device
,
392 int ret
= TMF_RESP_FUNC_FAILED
;
394 dev_dbg(&isci_host
->pdev
->dev
,
395 "%s: isci_host = %p, isci_device = %p\n",
396 __func__
, isci_host
, isci_device
);
397 /* Send the LUN reset to the target. By the time the call returns,
398 * the TMF has fully exected in the target (in which case the return
399 * value is "TMF_RESP_FUNC_COMPLETE", or the request timed-out (or
400 * was otherwise unable to be executed ("TMF_RESP_FUNC_FAILED").
402 isci_task_build_tmf(&tmf
, isci_tmf_ssp_lun_reset
);
404 #define ISCI_LU_RESET_TIMEOUT_MS 2000 /* 2 second timeout. */
405 ret
= isci_task_execute_tmf(isci_host
, isci_device
, &tmf
, ISCI_LU_RESET_TIMEOUT_MS
);
407 if (ret
== TMF_RESP_FUNC_COMPLETE
)
408 dev_dbg(&isci_host
->pdev
->dev
,
409 "%s: %p: TMF_LU_RESET passed\n",
410 __func__
, isci_device
);
412 dev_dbg(&isci_host
->pdev
->dev
,
413 "%s: %p: TMF_LU_RESET failed (%x)\n",
414 __func__
, isci_device
, ret
);
419 int isci_task_lu_reset(struct domain_device
*dev
, u8
*lun
)
421 struct isci_host
*ihost
= dev_to_ihost(dev
);
422 struct isci_remote_device
*idev
;
424 int ret
= TMF_RESP_FUNC_COMPLETE
;
426 spin_lock_irqsave(&ihost
->scic_lock
, flags
);
427 idev
= isci_get_device(dev
->lldd_dev
);
428 spin_unlock_irqrestore(&ihost
->scic_lock
, flags
);
430 dev_dbg(&ihost
->pdev
->dev
,
431 "%s: domain_device=%p, isci_host=%p; isci_device=%p\n",
432 __func__
, dev
, ihost
, idev
);
435 /* If the device is gone, escalate to I_T_Nexus_Reset. */
436 dev_dbg(&ihost
->pdev
->dev
, "%s: No dev\n", __func__
);
438 ret
= TMF_RESP_FUNC_FAILED
;
442 /* Suspend the RNC, kill all TCs */
443 if (isci_remote_device_suspend_terminate(ihost
, idev
, NULL
)
445 /* The suspend/terminate only fails if isci_get_device fails */
446 ret
= TMF_RESP_FUNC_FAILED
;
449 /* All pending I/Os have been terminated and cleaned up. */
450 if (!test_bit(IDEV_GONE
, &idev
->flags
)) {
451 if (dev_is_sata(dev
))
452 sas_ata_schedule_reset(dev
);
454 /* Send the task management part of the reset. */
455 ret
= isci_task_send_lu_reset_sas(ihost
, idev
, lun
);
458 isci_put_device(idev
);
463 /* int (*lldd_clear_nexus_port)(struct asd_sas_port *); */
464 int isci_task_clear_nexus_port(struct asd_sas_port
*port
)
466 return TMF_RESP_FUNC_FAILED
;
471 int isci_task_clear_nexus_ha(struct sas_ha_struct
*ha
)
473 return TMF_RESP_FUNC_FAILED
;
476 /* Task Management Functions. Must be called from process context. */
479 * isci_task_abort_task() - This function is one of the SAS Domain Template
480 * functions. This function is called by libsas to abort a specified task.
481 * @task: This parameter specifies the SAS task to abort.
483 * status, zero indicates success.
485 int isci_task_abort_task(struct sas_task
*task
)
487 struct isci_host
*ihost
= dev_to_ihost(task
->dev
);
488 DECLARE_COMPLETION_ONSTACK(aborted_io_completion
);
489 struct isci_request
*old_request
= NULL
;
490 struct isci_remote_device
*idev
= NULL
;
492 int ret
= TMF_RESP_FUNC_FAILED
;
494 int target_done_already
= 0;
496 /* Get the isci_request reference from the task. Note that
497 * this check does not depend on the pending request list
498 * in the device, because tasks driving resets may land here
499 * after completion in the core.
501 spin_lock_irqsave(&ihost
->scic_lock
, flags
);
502 spin_lock(&task
->task_state_lock
);
504 old_request
= task
->lldd_task
;
506 /* If task is already done, the request isn't valid */
507 if (!(task
->task_state_flags
& SAS_TASK_STATE_DONE
) &&
508 (task
->task_state_flags
& SAS_TASK_AT_INITIATOR
) &&
510 idev
= isci_get_device(task
->dev
->lldd_dev
);
511 target_done_already
= test_bit(IREQ_COMPLETE_IN_TARGET
,
512 &old_request
->flags
);
514 spin_unlock(&task
->task_state_lock
);
515 spin_unlock_irqrestore(&ihost
->scic_lock
, flags
);
517 dev_warn(&ihost
->pdev
->dev
,
518 "%s: dev = %p (%s%s), task = %p, old_request == %p\n",
520 (dev_is_sata(task
->dev
) ? "STP/SATA"
521 : ((dev_is_expander(task
->dev
))
524 ((idev
) ? ((test_bit(IDEV_GONE
, &idev
->flags
))
530 /* Device reset conditions signalled in task_state_flags are the
531 * responsbility of libsas to observe at the start of the error
534 if (!idev
|| !old_request
) {
535 /* The request has already completed and there
536 * is nothing to do here other than to set the task
537 * done bit, and indicate that the task abort function
540 spin_lock_irqsave(&task
->task_state_lock
, flags
);
541 task
->task_state_flags
|= SAS_TASK_STATE_DONE
;
542 task
->task_state_flags
&= ~(SAS_TASK_AT_INITIATOR
|
543 SAS_TASK_STATE_PENDING
);
544 spin_unlock_irqrestore(&task
->task_state_lock
, flags
);
546 ret
= TMF_RESP_FUNC_COMPLETE
;
548 dev_warn(&ihost
->pdev
->dev
,
549 "%s: abort task not needed for %p\n",
553 /* Suspend the RNC, kill the TC */
554 if (isci_remote_device_suspend_terminate(ihost
, idev
, old_request
)
556 dev_warn(&ihost
->pdev
->dev
,
557 "%s: isci_remote_device_reset_terminate(dev=%p, "
558 "req=%p, task=%p) failed\n",
559 __func__
, idev
, old_request
, task
);
560 ret
= TMF_RESP_FUNC_FAILED
;
563 spin_lock_irqsave(&ihost
->scic_lock
, flags
);
565 if (task
->task_proto
== SAS_PROTOCOL_SMP
||
566 sas_protocol_ata(task
->task_proto
) ||
567 target_done_already
||
568 test_bit(IDEV_GONE
, &idev
->flags
)) {
570 spin_unlock_irqrestore(&ihost
->scic_lock
, flags
);
572 /* No task to send, so explicitly resume the device here */
573 isci_remote_device_resume_from_abort(ihost
, idev
);
575 dev_warn(&ihost
->pdev
->dev
,
577 " or complete_in_target (%d), "
578 "or IDEV_GONE (%d), thus no TMF\n",
580 ((task
->task_proto
== SAS_PROTOCOL_SMP
)
582 : (sas_protocol_ata(task
->task_proto
)
586 test_bit(IREQ_COMPLETE_IN_TARGET
,
587 &old_request
->flags
),
588 test_bit(IDEV_GONE
, &idev
->flags
));
590 spin_lock_irqsave(&task
->task_state_lock
, flags
);
591 task
->task_state_flags
&= ~(SAS_TASK_AT_INITIATOR
|
592 SAS_TASK_STATE_PENDING
);
593 task
->task_state_flags
|= SAS_TASK_STATE_DONE
;
594 spin_unlock_irqrestore(&task
->task_state_lock
, flags
);
596 ret
= TMF_RESP_FUNC_COMPLETE
;
598 /* Fill in the tmf stucture */
599 isci_task_build_abort_task_tmf(&tmf
, isci_tmf_ssp_task_abort
,
602 spin_unlock_irqrestore(&ihost
->scic_lock
, flags
);
604 /* Send the task management request. */
605 #define ISCI_ABORT_TASK_TIMEOUT_MS 500 /* 1/2 second timeout */
606 ret
= isci_task_execute_tmf(ihost
, idev
, &tmf
,
607 ISCI_ABORT_TASK_TIMEOUT_MS
);
610 dev_warn(&ihost
->pdev
->dev
,
611 "%s: Done; dev = %p, task = %p , old_request == %p\n",
612 __func__
, idev
, task
, old_request
);
613 isci_put_device(idev
);
618 * isci_task_abort_task_set() - This function is one of the SAS Domain Template
619 * functions. This is one of the Task Management functoins called by libsas,
620 * to abort all task for the given lun.
621 * @d_device: This parameter specifies the domain device associated with this
623 * @lun: This parameter specifies the lun associated with this request.
625 * status, zero indicates success.
627 int isci_task_abort_task_set(
628 struct domain_device
*d_device
,
631 return TMF_RESP_FUNC_FAILED
;
636 * isci_task_clear_aca() - This function is one of the SAS Domain Template
637 * functions. This is one of the Task Management functoins called by libsas.
638 * @d_device: This parameter specifies the domain device associated with this
640 * @lun: This parameter specifies the lun associated with this request.
642 * status, zero indicates success.
644 int isci_task_clear_aca(
645 struct domain_device
*d_device
,
648 return TMF_RESP_FUNC_FAILED
;
654 * isci_task_clear_task_set() - This function is one of the SAS Domain Template
655 * functions. This is one of the Task Management functoins called by libsas.
656 * @d_device: This parameter specifies the domain device associated with this
658 * @lun: This parameter specifies the lun associated with this request.
660 * status, zero indicates success.
662 int isci_task_clear_task_set(
663 struct domain_device
*d_device
,
666 return TMF_RESP_FUNC_FAILED
;
671 * isci_task_query_task() - This function is implemented to cause libsas to
672 * correctly escalate the failed abort to a LUN or target reset (this is
673 * because sas_scsi_find_task libsas function does not correctly interpret
674 * all return codes from the abort task call). When TMF_RESP_FUNC_SUCC is
675 * returned, libsas turns this into a LUN reset; when FUNC_FAILED is
676 * returned, libsas will turn this into a target reset
677 * @task: This parameter specifies the sas task being queried.
678 * @lun: This parameter specifies the lun associated with this request.
680 * status, zero indicates success.
682 int isci_task_query_task(
683 struct sas_task
*task
)
685 /* See if there is a pending device reset for this device. */
686 if (task
->task_state_flags
& SAS_TASK_NEED_DEV_RESET
)
687 return TMF_RESP_FUNC_FAILED
;
689 return TMF_RESP_FUNC_SUCC
;
693 * isci_task_request_complete() - This function is called by the sci core when
694 * an task request completes.
695 * @ihost: This parameter specifies the ISCI host object
696 * @ireq: This parameter is the completed isci_request object.
697 * @completion_status: This parameter specifies the completion status from the
703 isci_task_request_complete(struct isci_host
*ihost
,
704 struct isci_request
*ireq
,
705 enum sci_task_status completion_status
)
707 struct isci_tmf
*tmf
= isci_request_access_tmf(ireq
);
708 struct completion
*tmf_complete
= NULL
;
710 dev_dbg(&ihost
->pdev
->dev
,
711 "%s: request = %p, status=%d\n",
712 __func__
, ireq
, completion_status
);
714 set_bit(IREQ_COMPLETE_IN_TARGET
, &ireq
->flags
);
717 tmf
->status
= completion_status
;
719 if (tmf
->proto
== SAS_PROTOCOL_SSP
) {
720 memcpy(&tmf
->resp
.resp_iu
,
722 SSP_RESP_IU_MAX_SIZE
);
723 } else if (tmf
->proto
== SAS_PROTOCOL_SATA
) {
724 memcpy(&tmf
->resp
.d2h_fis
,
726 sizeof(struct dev_to_host_fis
));
728 /* PRINT_TMF( ((struct isci_tmf *)request->task)); */
729 tmf_complete
= tmf
->complete
;
731 sci_controller_complete_io(ihost
, ireq
->target_device
, ireq
);
732 /* set the 'terminated' flag handle to make sure it cannot be terminated
733 * or completed again.
735 set_bit(IREQ_TERMINATED
, &ireq
->flags
);
737 if (test_and_clear_bit(IREQ_ABORT_PATH_ACTIVE
, &ireq
->flags
))
738 wake_up_all(&ihost
->eventq
);
740 if (!test_bit(IREQ_NO_AUTO_FREE_TAG
, &ireq
->flags
))
741 isci_free_tag(ihost
, ireq
->io_tag
);
743 /* The task management part completes last. */
745 complete(tmf_complete
);
748 static int isci_reset_device(struct isci_host
*ihost
,
749 struct domain_device
*dev
,
750 struct isci_remote_device
*idev
)
752 int rc
= TMF_RESP_FUNC_COMPLETE
, reset_stat
= -1;
753 struct sas_phy
*phy
= sas_get_local_phy(dev
);
754 struct isci_port
*iport
= dev
->port
->lldd_port
;
756 dev_dbg(&ihost
->pdev
->dev
, "%s: idev %p\n", __func__
, idev
);
758 /* Suspend the RNC, terminate all outstanding TCs. */
759 if (isci_remote_device_suspend_terminate(ihost
, idev
, NULL
)
761 rc
= TMF_RESP_FUNC_FAILED
;
764 /* Note that since the termination for outstanding requests succeeded,
765 * this function will return success. This is because the resets will
766 * only fail if the device has been removed (ie. hotplug), and the
767 * primary duty of this function is to cleanup tasks, so that is the
770 if (!test_bit(IDEV_GONE
, &idev
->flags
)) {
771 if (scsi_is_sas_phy_local(phy
)) {
772 struct isci_phy
*iphy
= &ihost
->phys
[phy
->number
];
774 reset_stat
= isci_port_perform_hard_reset(ihost
, iport
,
777 reset_stat
= sas_phy_reset(phy
, !dev_is_sata(dev
));
779 /* Explicitly resume the RNC here, since there was no task sent. */
780 isci_remote_device_resume_from_abort(ihost
, idev
);
782 dev_dbg(&ihost
->pdev
->dev
, "%s: idev %p complete, reset_stat=%d.\n",
783 __func__
, idev
, reset_stat
);
785 sas_put_local_phy(phy
);
789 int isci_task_I_T_nexus_reset(struct domain_device
*dev
)
791 struct isci_host
*ihost
= dev_to_ihost(dev
);
792 struct isci_remote_device
*idev
;
796 spin_lock_irqsave(&ihost
->scic_lock
, flags
);
797 idev
= isci_get_device(dev
->lldd_dev
);
798 spin_unlock_irqrestore(&ihost
->scic_lock
, flags
);
801 /* XXX: need to cleanup any ireqs targeting this
808 ret
= isci_reset_device(ihost
, dev
, idev
);
810 isci_put_device(idev
);