---

yaml
---
r: 47736
b: refs/heads/master
c: 3cd041f
h: refs/heads/master
v: v3

[refs]

@@ -1,2 +1,2 @@
 ---
-refs/heads/master: 396819fba821ad56f1b90090d256f0ab726c89c5
+refs/heads/master: 3cd041fb7f50f4cee3bc3a2b0ce02b1562894894

trunk/drivers/scsi/aic94xx/aic94xx_scb.c

@@ -413,40 +413,6 @@ void asd_invalidate_edb(struct asd_ascb *ascb, int edb_id)
 	}
 }
 
-/* hard reset a phy later */
-static void do_phy_reset_later(struct work_struct *work)
-{
-	struct sas_phy *sas_phy =
-		container_of(work, struct sas_phy, reset_work);
-	int error;
-
-	ASD_DPRINTK("%s: About to hard reset phy %d\n", __FUNCTION__,
-		    sas_phy->identify.phy_identifier);
-	/* Reset device port */
-	error = sas_phy_reset(sas_phy, 1);
-	if (error)
-		ASD_DPRINTK("%s: Hard reset of phy %d failed (%d).\n",
-			    __FUNCTION__, sas_phy->identify.phy_identifier, error);
-}
-
-static void phy_reset_later(struct sas_phy *sas_phy, struct Scsi_Host *shost)
-{
-	INIT_WORK(&sas_phy->reset_work, do_phy_reset_later);
-	queue_work(shost->work_q, &sas_phy->reset_work);
-}
-
-/* start up the ABORT TASK tmf... */
-static void task_kill_later(struct asd_ascb *ascb)
-{
-	struct asd_ha_struct *asd_ha = ascb->ha;
-	struct sas_ha_struct *sas_ha = &asd_ha->sas_ha;
-	struct Scsi_Host *shost = sas_ha->core.shost;
-	struct sas_task *task = ascb->uldd_task;
-
-	INIT_WORK(&task->abort_work, sas_task_abort);
-	queue_work(shost->work_q, &task->abort_work);
-}
-
 static void escb_tasklet_complete(struct asd_ascb *ascb,
 				  struct done_list_struct *dl)
 {
@@ -479,59 +445,103 @@ static void escb_tasklet_complete(struct asd_ascb *ascb,
 	case REQ_TASK_ABORT: {
 		struct asd_ascb *a, *b;
 		u16 tc_abort;
+		struct domain_device *failed_dev = NULL;
+
+		ASD_DPRINTK("%s: REQ_TASK_ABORT, reason=0x%X\n",
+			    __FUNCTION__, dl->status_block[3]);
 
+		/*
+		 * Find the task that caused the abort and abort it first.
+		 * The sequencer won't put anything on the done list until
+		 * that happens.
+		 */
 		tc_abort = *((u16*)(&dl->status_block[1]));
 		tc_abort = le16_to_cpu(tc_abort);
 
-		ASD_DPRINTK("%s: REQ_TASK_ABORT, reason=0x%X\n",
-			    __FUNCTION__, dl->status_block[3]);
+		list_for_each_entry_safe(a, b, &asd_ha->seq.pend_q, list) {
+			struct sas_task *task = ascb->uldd_task;
 
-		/* Find the pending task and abort it. */
-		list_for_each_entry_safe(a, b, &asd_ha->seq.pend_q, list)
-			if (a->tc_index == tc_abort) {
-				task_kill_later(a);
+			if (task && a->tc_index == tc_abort) {
+				failed_dev = task->dev;
+				sas_task_abort(task);
 				break;
 			}
+		}
+
+		if (!failed_dev) {
+			ASD_DPRINTK("%s: Can't find task (tc=%d) to abort!\n",
+				    __FUNCTION__, tc_abort);
+			goto out;
+		}
+
+		/*
+		 * Now abort everything else for that device (hba?) so
+		 * that the EH will wake up and do something.
+		 */
+		list_for_each_entry_safe(a, b, &asd_ha->seq.pend_q, list) {
+			struct sas_task *task = ascb->uldd_task;
+
+			if (task &&
+			    task->dev == failed_dev &&
+			    a->tc_index != tc_abort)
+				sas_task_abort(task);
+		}
+
 		goto out;
 	}
 	case REQ_DEVICE_RESET: {
-		struct Scsi_Host *shost = sas_ha->core.shost;
-		struct sas_phy *dev_phy;
 		struct asd_ascb *a;
 		u16 conn_handle;
+		unsigned long flags;
+		struct sas_task *last_dev_task = NULL;
 
 		conn_handle = *((u16*)(&dl->status_block[1]));
 		conn_handle = le16_to_cpu(conn_handle);
 
 		ASD_DPRINTK("%s: REQ_DEVICE_RESET, reason=0x%X\n", __FUNCTION__,
 			    dl->status_block[3]);
 
-		/* Kill all pending tasks and reset the device */
-		dev_phy = NULL;
+		/* Find the last pending task for the device... */
 		list_for_each_entry(a, &asd_ha->seq.pend_q, list) {
-			struct sas_task *task;
-			struct domain_device *dev;
 			u16 x;
+			struct domain_device *dev;
+			struct sas_task *task = a->uldd_task;
 
-			task = a->uldd_task;
 			if (!task)
 				continue;
 			dev = task->dev;
 
 			x = (unsigned long)dev->lldd_dev;
-			if (x == conn_handle) {
-				dev_phy = dev->port->phy;
-				task_kill_later(a);
-			}
+			if (x == conn_handle)
+				last_dev_task = task;
 		}
 
-		/* Reset device port */
-		if (!dev_phy) {
-			ASD_DPRINTK("%s: No pending commands; can't reset.\n",
-				    __FUNCTION__);
+		if (!last_dev_task) {
+			ASD_DPRINTK("%s: Device reset for idle device %d?\n",
+				    __FUNCTION__, conn_handle);
 			goto out;
 		}
-		phy_reset_later(dev_phy, shost);
+
+		/* ...and set the reset flag */
+		spin_lock_irqsave(&last_dev_task->task_state_lock, flags);
+		last_dev_task->task_state_flags |= SAS_TASK_NEED_DEV_RESET;
+		spin_unlock_irqrestore(&last_dev_task->task_state_lock, flags);
+
+		/* Kill all pending tasks for the device */
+		list_for_each_entry(a, &asd_ha->seq.pend_q, list) {
+			u16 x;
+			struct domain_device *dev;
+			struct sas_task *task = a->uldd_task;
+
+			if (!task)
+				continue;
+			dev = task->dev;
+
+			x = (unsigned long)dev->lldd_dev;
+			if (x == conn_handle)
+				sas_task_abort(task);
+		}
+
 		goto out;
 	}
 	case SIGNAL_NCQ_ERROR: