X-Git-Url: https://err.no/cgi-bin/gitweb.cgi?a=blobdiff_plain;f=drivers%2Fscsi%2Flibata-scsi.c;h=234e1cadb070db1b5a26dcba693a1d884d5281d4;hb=2719736779da2c7fbb17d3de16c817b429bfeb9c;hp=b7df37ed4393489c055d7f03c5cab37c86225c96;hpb=2e9edbf815e42f93dd29a9981f27bd421acc47df;p=linux-2.6

diff --git a/drivers/scsi/libata-scsi.c b/drivers/scsi/libata-scsi.c
index b7df37ed43..234e1cadb0 100644
--- a/drivers/scsi/libata-scsi.c
+++ b/drivers/scsi/libata-scsi.c
@@ -267,20 +267,8 @@ int ata_task_ioctl(struct scsi_device *scsidev, void __user *arg)
 
 int ata_scsi_ioctl(struct scsi_device *scsidev, int cmd, void __user *arg)
 {
-	struct ata_port *ap;
-	struct ata_device *dev;
 	int val = -EINVAL, rc = -EINVAL;
 
-	ap = (struct ata_port *) &scsidev->host->hostdata[0];
-	if (!ap)
-		goto out;
-
-	dev = ata_scsi_find_dev(ap, scsidev);
-	if (!dev) {
-		rc = -ENODEV;
-		goto out;
-	}
-
 	switch (cmd) {
 	case ATA_IOC_GET_IO32:
 		val = 0;
@@ -309,7 +297,6 @@ int ata_scsi_ioctl(struct scsi_device *scsidev, int cmd, void __user *arg)
 		break;
 	}
 
-out:
 	return rc;
 }
 
@@ -792,20 +779,15 @@ enum scsi_eh_timer_return ata_scsi_timed_out(struct scsi_cmnd *cmd)
 
 int ata_scsi_error(struct Scsi_Host *host)
 {
-	struct ata_port *ap;
-	unsigned long flags;
+	struct ata_port *ap = (struct ata_port *)&host->hostdata[0];
 
 	DPRINTK("ENTER\n");
 
-	ap = (struct ata_port *) &host->hostdata[0];
+	/* synchronize with IRQ handler and port task */
+	spin_unlock_wait(&ap->host_set->lock);
+	ata_port_flush_task(ap);
 
-	spin_lock_irqsave(&ap->host_set->lock, flags);
-	WARN_ON(ap->flags & ATA_FLAG_IN_EH);
-	ap->flags |= ATA_FLAG_IN_EH;
 	WARN_ON(ata_qc_from_tag(ap, ap->active_tag) == NULL);
-	spin_unlock_irqrestore(&ap->host_set->lock, flags);
-
-	ata_port_flush_task(ap);
 
 	ap->ops->eng_timeout(ap);
 
@@ -813,10 +795,6 @@ int ata_scsi_error(struct Scsi_Host *host)
 
 	scsi_eh_flush_done_q(&ap->eh_done_q);
 
-	spin_lock_irqsave(&ap->host_set->lock, flags);
-	ap->flags &= ~ATA_FLAG_IN_EH;
-	spin_unlock_irqrestore(&ap->host_set->lock, flags);
-
 	DPRINTK("EXIT\n");
 	return 0;
 }
@@ -1210,6 +1188,7 @@ static unsigned int ata_scsi_rw_xlat(struct ata_queued_cmd *qc, const u8 *scsicm
 	u64 block;
 	u32 n_block;
 
+	qc->flags |= ATA_QCFLAG_IO;
 	tf->flags |= ATA_TFLAG_ISADDR | ATA_TFLAG_DEVICE;
 
 	if (scsicmd[0] == WRITE_10 || scsicmd[0] == WRITE_6 ||
@@ -1444,9 +1423,7 @@ static void ata_scsi_translate(struct ata_port *ap, struct ata_device *dev,
 		goto early_finish;
 
 	/* select device, send command to hardware */
-	qc->err_mask = ata_qc_issue(qc);
-	if (qc->err_mask)
-		ata_qc_complete(qc);
+	ata_qc_issue(qc);
 
 	VPRINTK("EXIT\n");
 	return;
@@ -2212,9 +2189,7 @@ static void atapi_request_sense(struct ata_queued_cmd *qc)
 
 	qc->complete_fn = atapi_sense_complete;
 
-	qc->err_mask = ata_qc_issue(qc);
-	if (qc->err_mask)
-		ata_qc_complete(qc);
+	ata_qc_issue(qc);
 
 	DPRINTK("EXIT\n");
 }
@@ -2366,7 +2341,7 @@ ata_scsi_find_dev(struct ata_port *ap, const struct scsi_device *scsidev)
 		     (scsidev->lun != 0)))
 		return NULL;
 
-	if (unlikely(!ata_dev_present(dev)))
+	if (unlikely(!ata_dev_enabled(dev)))
 		return NULL;
 
 	if (!atapi_enabled || (ap->flags & ATA_FLAG_NO_ATAPI)) {
@@ -2597,6 +2572,21 @@ static inline void ata_scsi_dump_cdb(struct ata_port *ap,
 #endif
 }
 
+static inline void __ata_scsi_queuecmd(struct scsi_cmnd *cmd, void (*done)(struct scsi_cmnd *),
+				       struct ata_port *ap, struct ata_device *dev)
+{
+	if (dev->class == ATA_DEV_ATA) {
+		ata_xlat_func_t xlat_func = ata_get_xlat_func(dev,
+							      cmd->cmnd[0]);
+
+		if (xlat_func)
+			ata_scsi_translate(ap, dev, cmd, done, xlat_func);
+		else
+			ata_scsi_simulate(ap, dev, cmd, done);
+	} else
+		ata_scsi_translate(ap, dev, cmd, done, atapi_xlat);
+}
+
 /**
  *	ata_scsi_queuecmd - Issue SCSI cdb to libata-managed device
  *	@cmd: SCSI command to be sent
@@ -2631,24 +2621,13 @@ int ata_scsi_queuecmd(struct scsi_cmnd *cmd, void (*done)(struct scsi_cmnd *))
 	ata_scsi_dump_cdb(ap, cmd);
 
 	dev = ata_scsi_find_dev(ap, scsidev);
-	if (unlikely(!dev)) {
+	if (likely(dev))
+		__ata_scsi_queuecmd(cmd, done, ap, dev);
+	else {
 		cmd->result = (DID_BAD_TARGET << 16);
 		done(cmd);
-		goto out_unlock;
 	}
 
-	if (dev->class == ATA_DEV_ATA) {
-		ata_xlat_func_t xlat_func = ata_get_xlat_func(dev,
-							      cmd->cmnd[0]);
-
-		if (xlat_func)
-			ata_scsi_translate(ap, dev, cmd, done, xlat_func);
-		else
-			ata_scsi_simulate(ap, dev, cmd, done);
-	} else
-		ata_scsi_translate(ap, dev, cmd, done, atapi_xlat);
-
-out_unlock:
 	spin_unlock(&ap->host_set->lock);
 	spin_lock(shost->host_lock);
 	return 0;
@@ -2750,13 +2729,13 @@ void ata_scsi_scan_host(struct ata_port *ap)
 	struct ata_device *dev;
 	unsigned int i;
 
-	if (ap->flags & ATA_FLAG_PORT_DISABLED)
+	if (ap->flags & ATA_FLAG_DISABLED)
 		return;
 
 	for (i = 0; i < ATA_MAX_DEVICES; i++) {
 		dev = &ap->device[i];
 
-		if (ata_dev_present(dev))
+		if (ata_dev_enabled(dev))
 			scsi_scan_target(&ap->host->shost_gendev, 0, i, 0, 0);
 	}
 }