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Commit 0979c84b authored by Robert Jennings's avatar Robert Jennings Committed by James Bottomley
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[SCSI] ibmvscsi: add slave_configure to allow device restart 



Fixed the kernel-doc comment for ibmvscsi_slave_configure.  Thanks to
Randy Dunlap for pointing this out.

Adding a slave_configure function for the driver. Now the disks can be
restarted by the scsi mid-layer when the are disconnected and reconnected.

Signed-off-by: default avatar"Robert Jennings" <rcj@linux.vnet.ibm.com>
Signed-off-by: default avatar"Santiago Leon" <santil@us.ibm.com>
Signed-off-by: default avatarJames Bottomley <James.Bottomley@SteelEye.com>
parent a897ff2a

drivers/scsi/ibmvscsi/ibmvscsi.c

+22 −0
Original line number Diff line number Diff line
@@ -1354,6 +1354,27 @@ static int ibmvscsi_do_host_config(struct ibmvscsi_host_data *hostdata, 
	return rc;

}



/**

 * ibmvscsi_slave_configure: Set the "allow_restart" flag for each disk.

 * @sdev:	struct scsi_device device to configure

 *

 * Enable allow_restart for a device if it is a disk.  Adjust the

 * queue_depth here also as is required by the documentation for

 * struct scsi_host_template.

 */

static int ibmvscsi_slave_configure(struct scsi_device *sdev)

{

	struct Scsi_Host *shost = sdev->host;

	unsigned long lock_flags = 0;



	spin_lock_irqsave(shost->host_lock, lock_flags);

	if (sdev->type == TYPE_DISK)

		sdev->allow_restart = 1;

	scsi_adjust_queue_depth(sdev, 0, shost->cmd_per_lun);

	spin_unlock_irqrestore(shost->host_lock, lock_flags);

	return 0;

}



/* ------------------------------------------------------------

 * sysfs attributes

 */
@@ -1499,6 +1520,7 @@ static struct scsi_host_template driver_template = { 
	.queuecommand = ibmvscsi_queuecommand,

	.eh_abort_handler = ibmvscsi_eh_abort_handler,

	.eh_device_reset_handler = ibmvscsi_eh_device_reset_handler,

	.slave_configure = ibmvscsi_slave_configure,

	.cmd_per_lun = 16,

	.can_queue = IBMVSCSI_MAX_REQUESTS_DEFAULT,

	.this_id = -1,