diff options
Diffstat (limited to 'drivers/scsi/ibmvscsi/ibmvscsi.c')
| -rw-r--r-- | drivers/scsi/ibmvscsi/ibmvscsi.c | 18 |
1 files changed, 18 insertions, 0 deletions
diff --git a/drivers/scsi/ibmvscsi/ibmvscsi.c b/drivers/scsi/ibmvscsi/ibmvscsi.c index b10eefe735c5..b580af95956b 100644 --- a/drivers/scsi/ibmvscsi/ibmvscsi.c +++ b/drivers/scsi/ibmvscsi/ibmvscsi.c @@ -1375,6 +1375,23 @@ static int ibmvscsi_slave_configure(struct scsi_device *sdev) return 0; } +/** + * ibmvscsi_change_queue_depth - Change the device's queue depth + * @sdev: scsi device struct + * @qdepth: depth to set + * + * Return value: + * actual depth set + **/ +static int ibmvscsi_change_queue_depth(struct scsi_device *sdev, int qdepth) +{ + if (qdepth > IBMVSCSI_MAX_CMDS_PER_LUN) + qdepth = IBMVSCSI_MAX_CMDS_PER_LUN; + + scsi_adjust_queue_depth(sdev, 0, qdepth); + return sdev->queue_depth; +} + /* ------------------------------------------------------------ * sysfs attributes */ @@ -1521,6 +1538,7 @@ static struct scsi_host_template driver_template = { .eh_abort_handler = ibmvscsi_eh_abort_handler, .eh_device_reset_handler = ibmvscsi_eh_device_reset_handler, .slave_configure = ibmvscsi_slave_configure, + .change_queue_depth = ibmvscsi_change_queue_depth, .cmd_per_lun = 16, .can_queue = IBMVSCSI_MAX_REQUESTS_DEFAULT, .this_id = -1, |