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[SCSI] ibmvscsi: add slave_configure to allow device restart

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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: "Robert Jennings" <rcj@linux.vnet.ibm.com>
Signed-off-by: "Santiago Leon" <santil@us.ibm.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
This commit is contained in:
Robert Jennings 2007-03-29 12:30:40 -05:00 committed by James Bottomley
parent a897ff2a63
commit 0979c84b4a
1 changed files with 22 additions and 0 deletions
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22
drivers/scsi/ibmvscsi/ibmvscsi.c
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@ -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,