Lines Matching defs:task
64 #include "task.h"
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,
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;
93 task->task_state_flags |= SAS_TASK_STATE_DONE;
94 task->task_state_flags &= ~(SAS_TASK_AT_INITIATOR |
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) \
104 task = list_entry(task->list.next, struct sas_task, list))
108 struct sas_task *task)
112 isci_task_is_ncq_recovery(task))
117 * functions. This function is called by libsas to send a task down to
119 * @task: This parameter specifies the SAS task to send.
124 int isci_task_execute_task(struct sas_task *task, gfp_t gfp_flags)
126 struct isci_host *ihost = dev_to_ihost(task->dev);
134 idev = isci_lookup_device(task->dev);
135 io_ready = isci_device_io_ready(idev, task);
140 "task: %p, dev: %p idev: %p:%#lx cmd = %p\n",
141 task, task->dev, idev, idev ? idev->flags : 0,
142 task->uldd_task);
145 isci_task_refuse(ihost, task, SAS_TASK_UNDELIVERED,
151 isci_task_refuse(ihost, task, SAS_TASK_COMPLETE,
155 spin_lock_irqsave(&task->task_state_lock, flags);
157 if (task->task_state_flags & SAS_TASK_STATE_ABORTED) {
159 spin_unlock_irqrestore(&task->task_state_lock, flags);
161 isci_task_refuse(ihost, task,
165 task->task_state_flags |= SAS_TASK_AT_INITIATOR;
166 spin_unlock_irqrestore(&task->task_state_lock, flags);
169 status = isci_request_execute(ihost, idev, task, tag);
172 spin_lock_irqsave(&task->task_state_lock, flags);
174 task->task_state_flags &= ~SAS_TASK_AT_INITIATOR;
175 spin_unlock_irqrestore(&task->task_state_lock, flags);
181 isci_task_refuse(ihost, task,
193 isci_task_refuse(ihost, task,
245 /* XXX convert to get this from task->tproto like other drivers */
447 /* Send the task management part of the reset. */
473 * functions. This function is called by libsas to abort a specified task.
474 * @task: This parameter specifies the SAS task to abort.
478 int isci_task_abort_task(struct sas_task *task)
480 struct isci_host *ihost = dev_to_ihost(task->dev);
489 /* Get the isci_request reference from the task. Note that
495 spin_lock(&task->task_state_lock);
497 old_request = task->lldd_task;
499 /* If task is already done, the request isn't valid */
500 if (!(task->task_state_flags & SAS_TASK_STATE_DONE) &&
501 (task->task_state_flags & SAS_TASK_AT_INITIATOR) &&
503 idev = isci_get_device(task->dev->lldd_dev);
507 spin_unlock(&task->task_state_lock);
511 "%s: dev = %p (%s%s), task = %p, old_request == %p\n",
513 (dev_is_sata(task->dev) ? "STP/SATA"
514 : ((dev_is_expander(task->dev->dev_type))
521 task, old_request);
529 * is nothing to do here other than to set the task
530 * done bit, and indicate that the task abort function
533 spin_lock_irqsave(&task->task_state_lock, flags);
534 task->task_state_flags |= SAS_TASK_STATE_DONE;
535 task->task_state_flags &= ~(SAS_TASK_AT_INITIATOR |
537 spin_unlock_irqrestore(&task->task_state_lock, flags);
542 "%s: abort task not needed for %p\n",
543 __func__, task);
551 "req=%p, task=%p) failed\n",
552 __func__, idev, old_request, task);
558 if (task->task_proto == SAS_PROTOCOL_SMP ||
559 sas_protocol_ata(task->task_proto) ||
565 /* No task to send, so explicitly resume the device here */
573 ((task->task_proto == SAS_PROTOCOL_SMP)
575 : (sas_protocol_ata(task->task_proto)
583 spin_lock_irqsave(&task->task_state_lock, flags);
584 task->task_state_flags &= ~(SAS_TASK_AT_INITIATOR |
586 task->task_state_flags |= SAS_TASK_STATE_DONE;
587 spin_unlock_irqrestore(&task->task_state_lock, flags);
597 /* Send the task management request. */
604 "%s: Done; dev = %p, task = %p , old_request == %p\n",
605 __func__, idev, task, old_request);
613 * to abort all task for the given lun.
667 * all return codes from the abort task call). When TMF_RESP_FUNC_SUCC is
670 * @task: This parameter specifies the sas task being queried.
676 struct sas_task *task)
679 if (task->task_state_flags & SAS_TASK_NEED_DEV_RESET)
687 * an task request completes.
721 /* PRINT_TMF( ((struct isci_tmf *)request->task)); */
736 /* The task management part completes last. */
772 /* Explicitly resume the RNC here, since there was no task sent. */