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| author | Robert Jennings <rcj@linux.vnet.ibm.com> | 2007-03-29 12:30:40 -0500 |
|---|---|---|
| committer | James Bottomley <jejb@mulgrave.il.steeleye.com> | 2007-04-01 10:37:02 -0500 |
| commit | 0979c84b4affaf924a894380dd0069638b64de03 (patch) | |
| tree | 45810a42af66614a4cb0ba80ba2290396a58227f /drivers/scsi/ibmvscsi/ibmvscsi.c | |
| parent | a897ff2a6386ac4368ba41db18b626afd903f9d8 (diff) | |
| download | lwn-0979c84b4affaf924a894380dd0069638b64de03.tar.gz lwn-0979c84b4affaf924a894380dd0069638b64de03.zip | |
[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: "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>
Diffstat (limited to 'drivers/scsi/ibmvscsi/ibmvscsi.c')
| -rw-r--r-- | drivers/scsi/ibmvscsi/ibmvscsi.c | 22 |
1 files changed, 22 insertions, 0 deletions
diff --git a/drivers/scsi/ibmvscsi/ibmvscsi.c b/drivers/scsi/ibmvscsi/ibmvscsi.c index 383f5948ba06..b10eefe735c5 100644 --- a/drivers/scsi/ibmvscsi/ibmvscsi.c +++ b/drivers/scsi/ibmvscsi/ibmvscsi.c @@ -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, |