Merge ../scsi-rc-fixes-2.6

1 files changed, 35 insertions, 82 deletions

diff --git a/drivers/s390/cio/device_fsm.c b/drivers/s390/cio/device_fsm.c
index b67620208f36..de3d0857db9f 100644
--- a/drivers/s390/cio/device_fsm.c
+++ b/drivers/s390/cio/device_fsm.c
@@ -59,18 +59,6 @@ device_set_disconnected(struct subchannel *sch)
 	cdev->private->state = DEV_STATE_DISCONNECTED;
 }
 
-void
-device_set_waiting(struct subchannel *sch)
-{
-	struct ccw_device *cdev;
-
-	if (!sch->dev.driver_data)
-		return;
-	cdev = sch->dev.driver_data;
-	ccw_device_set_timeout(cdev, 10*HZ);
-	cdev->private->state = DEV_STATE_WAIT4IO;
-}
-
 /*
  * Timeout function. It just triggers a DEV_EVENT_TIMEOUT.
  */
@@ -183,9 +171,9 @@ ccw_device_handle_oper(struct ccw_device *cdev)
 	    cdev->id.cu_model != cdev->private->senseid.cu_model ||
 	    cdev->id.dev_type != cdev->private->senseid.dev_type ||
 	    cdev->id.dev_model != cdev->private->senseid.dev_model ||
-	    cdev->private->devno != sch->schib.pmcw.dev) {
+	    cdev->private->dev_id.devno != sch->schib.pmcw.dev) {
 		PREPARE_WORK(&cdev->private->kick_work,
-			     ccw_device_do_unreg_rereg, (void *)cdev);
+			     ccw_device_do_unreg_rereg, cdev);
 		queue_work(ccw_device_work, &cdev->private->kick_work);
 		return 0;
 	}
@@ -255,7 +243,7 @@ ccw_device_recog_done(struct ccw_device *cdev, int state)
 	case DEV_STATE_NOT_OPER:
 		CIO_DEBUG(KERN_WARNING, 2,
 			  "SenseID : unknown device %04x on subchannel "
-			  "0.%x.%04x\n", cdev->private->devno,
+			  "0.%x.%04x\n", cdev->private->dev_id.devno,
 			  sch->schid.ssid, sch->schid.sch_no);
 		break;
 	case DEV_STATE_OFFLINE:
@@ -282,14 +270,15 @@ ccw_device_recog_done(struct ccw_device *cdev, int state)
 		CIO_DEBUG(KERN_INFO, 2, "SenseID : device 0.%x.%04x reports: "
 			  "CU  Type/Mod = %04X/%02X, Dev Type/Mod = "
 			  "%04X/%02X\n",
-			  cdev->private->ssid, cdev->private->devno,
+			  cdev->private->dev_id.ssid,
+			  cdev->private->dev_id.devno,
 			  cdev->id.cu_type, cdev->id.cu_model,
 			  cdev->id.dev_type, cdev->id.dev_model);
 		break;
 	case DEV_STATE_BOXED:
 		CIO_DEBUG(KERN_WARNING, 2,
 			  "SenseID : boxed device %04x on subchannel "
-			  "0.%x.%04x\n", cdev->private->devno,
+			  "0.%x.%04x\n", cdev->private->dev_id.devno,
 			  sch->schid.ssid, sch->schid.sch_no);
 		break;
 	}
@@ -325,13 +314,13 @@ ccw_device_oper_notify(void *data)
 	struct subchannel *sch;
 	int ret;
 
-	cdev = (struct ccw_device *)data;
+	cdev = data;
 	sch = to_subchannel(cdev->dev.parent);
 	ret = (sch->driver && sch->driver->notify) ?
 		sch->driver->notify(&sch->dev, CIO_OPER) : 0;
 	if (!ret)
 		/* Driver doesn't want device back. */
-		ccw_device_do_unreg_rereg((void *)cdev);
+		ccw_device_do_unreg_rereg(cdev);
 	else {
 		/* Reenable channel measurements, if needed. */
 		cmf_reenable(cdev);
@@ -363,12 +352,12 @@ ccw_device_done(struct ccw_device *cdev, int state)
 	if (state == DEV_STATE_BOXED)
 		CIO_DEBUG(KERN_WARNING, 2,
 			  "Boxed device %04x on subchannel %04x\n",
-			  cdev->private->devno, sch->schid.sch_no);
+			  cdev->private->dev_id.devno, sch->schid.sch_no);
 
 	if (cdev->private->flags.donotify) {
 		cdev->private->flags.donotify = 0;
 		PREPARE_WORK(&cdev->private->kick_work, ccw_device_oper_notify,
-			     (void *)cdev);
+			     cdev);
 		queue_work(ccw_device_notify_work, &cdev->private->kick_work);
 	}
 	wake_up(&cdev->private->wait_q);
@@ -412,7 +401,8 @@ static void __ccw_device_get_common_pgid(struct ccw_device *cdev)
 		/* PGID mismatch, can't pathgroup. */
 		CIO_MSG_EVENT(0, "SNID - pgid mismatch for device "
 			      "0.%x.%04x, can't pathgroup\n",
-			      cdev->private->ssid, cdev->private->devno);
+			      cdev->private->dev_id.ssid,
+			      cdev->private->dev_id.devno);
 		cdev->private->options.pgroup = 0;
 		return;
 	}
@@ -523,7 +513,7 @@ ccw_device_nopath_notify(void *data)
 	struct subchannel *sch;
 	int ret;
 
-	cdev = (struct ccw_device *)data;
+	cdev = data;
 	sch = to_subchannel(cdev->dev.parent);
 	/* Extra sanity. */
 	if (sch->lpm)
@@ -537,7 +527,7 @@ ccw_device_nopath_notify(void *data)
 			if (get_device(&cdev->dev)) {
 				PREPARE_WORK(&cdev->private->kick_work,
 					     ccw_device_call_sch_unregister,
-					     (void *)cdev);
+					     cdev);
 				queue_work(ccw_device_work,
 					   &cdev->private->kick_work);
 			} else
@@ -588,11 +578,15 @@ ccw_device_verify_done(struct ccw_device *cdev, int err)
 		}
 		break;
 	case -ETIME:
+		/* Reset oper notify indication after verify error. */
+		cdev->private->flags.donotify = 0;
 		ccw_device_done(cdev, DEV_STATE_BOXED);
 		break;
 	default:
+		/* Reset oper notify indication after verify error. */
+		cdev->private->flags.donotify = 0;
 		PREPARE_WORK(&cdev->private->kick_work,
-			     ccw_device_nopath_notify, (void *)cdev);
+			     ccw_device_nopath_notify, cdev);
 		queue_work(ccw_device_notify_work, &cdev->private->kick_work);
 		ccw_device_done(cdev, DEV_STATE_NOT_OPER);
 		break;
@@ -723,7 +717,7 @@ ccw_device_offline_notoper(struct ccw_device *cdev, enum dev_event dev_event)
 	sch = to_subchannel(cdev->dev.parent);
 	if (get_device(&cdev->dev)) {
 		PREPARE_WORK(&cdev->private->kick_work,
-			     ccw_device_call_sch_unregister, (void *)cdev);
+			     ccw_device_call_sch_unregister, cdev);
 		queue_work(ccw_device_work, &cdev->private->kick_work);
 	}
 	wake_up(&cdev->private->wait_q);
@@ -754,7 +748,7 @@ ccw_device_online_notoper(struct ccw_device *cdev, enum dev_event dev_event)
 	}
 	if (get_device(&cdev->dev)) {
 		PREPARE_WORK(&cdev->private->kick_work,
-			     ccw_device_call_sch_unregister, (void *)cdev);
+			     ccw_device_call_sch_unregister, cdev);
 		queue_work(ccw_device_work, &cdev->private->kick_work);
 	}
 	wake_up(&cdev->private->wait_q);
@@ -859,7 +853,7 @@ ccw_device_online_timeout(struct ccw_device *cdev, enum dev_event dev_event)
 		sch = to_subchannel(cdev->dev.parent);
 		if (!sch->lpm) {
 			PREPARE_WORK(&cdev->private->kick_work,
-				     ccw_device_nopath_notify, (void *)cdev);
+				     ccw_device_nopath_notify, cdev);
 			queue_work(ccw_device_notify_work,
 				   &cdev->private->kick_work);
 		} else
@@ -885,7 +879,8 @@ ccw_device_w4sense(struct ccw_device *cdev, enum dev_event dev_event)
 			/* Basic sense hasn't started. Try again. */
 			ccw_device_do_sense(cdev, irb);
 		else {
-			printk("Huh? %s(%s): unsolicited interrupt...\n",
+			printk(KERN_INFO "Huh? %s(%s): unsolicited "
+			       "interrupt...\n",
 			       __FUNCTION__, cdev->dev.bus_id);
 			if (cdev->handler)
 				cdev->handler (cdev, 0, irb);
@@ -944,10 +939,10 @@ ccw_device_killing_irq(struct ccw_device *cdev, enum dev_event dev_event)
 	cdev->private->state = DEV_STATE_ONLINE;
 	if (cdev->handler)
 		cdev->handler(cdev, cdev->private->intparm,
-			      ERR_PTR(-ETIMEDOUT));
+			      ERR_PTR(-EIO));
 	if (!sch->lpm) {
 		PREPARE_WORK(&cdev->private->kick_work,
-			     ccw_device_nopath_notify, (void *)cdev);
+			     ccw_device_nopath_notify, cdev);
 		queue_work(ccw_device_notify_work, &cdev->private->kick_work);
 	} else if (cdev->private->flags.doverify)
 		/* Start delayed path verification. */
@@ -970,7 +965,7 @@ ccw_device_killing_timeout(struct ccw_device *cdev, enum dev_event dev_event)
 		sch = to_subchannel(cdev->dev.parent);
 		if (!sch->lpm) {
 			PREPARE_WORK(&cdev->private->kick_work,
-				     ccw_device_nopath_notify, (void *)cdev);
+				     ccw_device_nopath_notify, cdev);
 			queue_work(ccw_device_notify_work,
 				   &cdev->private->kick_work);
 		} else
@@ -981,51 +976,15 @@ ccw_device_killing_timeout(struct ccw_device *cdev, enum dev_event dev_event)
 	cdev->private->state = DEV_STATE_ONLINE;
 	if (cdev->handler)
 		cdev->handler(cdev, cdev->private->intparm,
-			      ERR_PTR(-ETIMEDOUT));
-}
-
-static void
-ccw_device_wait4io_irq(struct ccw_device *cdev, enum dev_event dev_event)
-{
-	struct irb *irb;
-	struct subchannel *sch;
-
-	irb = (struct irb *) __LC_IRB;
-	/*
-	 * Accumulate status and find out if a basic sense is needed.
-	 * This is fine since we have already adapted the lpm.
-	 */
-	ccw_device_accumulate_irb(cdev, irb);
-	if (cdev->private->flags.dosense) {
-		if (ccw_device_do_sense(cdev, irb) == 0) {
-			cdev->private->state = DEV_STATE_W4SENSE;
-		}
-		return;
-	}
-
-	/* Iff device is idle, reset timeout. */
-	sch = to_subchannel(cdev->dev.parent);
-	if (!stsch(sch->schid, &sch->schib))
-		if (sch->schib.scsw.actl == 0)
-			ccw_device_set_timeout(cdev, 0);
-	/* Call the handler. */
-	ccw_device_call_handler(cdev);
-	if (!sch->lpm) {
-		PREPARE_WORK(&cdev->private->kick_work,
-			     ccw_device_nopath_notify, (void *)cdev);
-		queue_work(ccw_device_notify_work, &cdev->private->kick_work);
-	} else if (cdev->private->flags.doverify)
-		ccw_device_online_verify(cdev, 0);
+			      ERR_PTR(-EIO));
 }
 
-static void
-ccw_device_wait4io_timeout(struct ccw_device *cdev, enum dev_event dev_event)
+void device_kill_io(struct subchannel *sch)
 {
 	int ret;
-	struct subchannel *sch;
+	struct ccw_device *cdev;
 
-	sch = to_subchannel(cdev->dev.parent);
-	ccw_device_set_timeout(cdev, 0);
+	cdev = sch->dev.driver_data;
 	ret = ccw_device_cancel_halt_clear(cdev);
 	if (ret == -EBUSY) {
 		ccw_device_set_timeout(cdev, 3*HZ);
@@ -1035,7 +994,7 @@ ccw_device_wait4io_timeout(struct ccw_device *cdev, enum dev_event dev_event)
 	if (ret == -ENODEV) {
 		if (!sch->lpm) {
 			PREPARE_WORK(&cdev->private->kick_work,
-				     ccw_device_nopath_notify, (void *)cdev);
+				     ccw_device_nopath_notify, cdev);
 			queue_work(ccw_device_notify_work,
 				   &cdev->private->kick_work);
 		} else
@@ -1044,12 +1003,12 @@ ccw_device_wait4io_timeout(struct ccw_device *cdev, enum dev_event dev_event)
 	}
 	if (cdev->handler)
 		cdev->handler(cdev, cdev->private->intparm,
-			      ERR_PTR(-ETIMEDOUT));
+			      ERR_PTR(-EIO));
 	if (!sch->lpm) {
 		PREPARE_WORK(&cdev->private->kick_work,
-			     ccw_device_nopath_notify, (void *)cdev);
+			     ccw_device_nopath_notify, cdev);
 		queue_work(ccw_device_notify_work, &cdev->private->kick_work);
-	} else if (cdev->private->flags.doverify)
+	} else
 		/* Start delayed path verification. */
 		ccw_device_online_verify(cdev, 0);
 }
@@ -1286,12 +1245,6 @@ fsm_func_t *dev_jumptable[NR_DEV_STATES][NR_DEV_EVENTS] = {
 		[DEV_EVENT_TIMEOUT]	= ccw_device_killing_timeout,
 		[DEV_EVENT_VERIFY]	= ccw_device_nop, //FIXME
 	},
-	[DEV_STATE_WAIT4IO] = {
-		[DEV_EVENT_NOTOPER]	= ccw_device_online_notoper,
-		[DEV_EVENT_INTERRUPT]	= ccw_device_wait4io_irq,
-		[DEV_EVENT_TIMEOUT]	= ccw_device_wait4io_timeout,
-		[DEV_EVENT_VERIFY]	= ccw_device_delay_verify,
-	},
 	[DEV_STATE_QUIESCE] = {
 		[DEV_EVENT_NOTOPER]	= ccw_device_quiesce_done,
 		[DEV_EVENT_INTERRUPT]	= ccw_device_quiesce_done,