[PATCH 3/3] ibmvscsi: Allow to configure maximum LUN

Laurent Vivier
2015-11-03T14:33:59Z

QEMU allows until 32 LUNs.

Signed-off-by: Laurent Vivier <lvivier@redhat.com>
Reviewed-by: Brian King <brking@linux.vnet.ibm.com>
Acked-by: Tyrel Datwyler <tyreld@linux.vnet.ibm.com>
---
drivers/scsi/ibmvscsi/ibmvscsi.c | 5 ++++-
1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/drivers/scsi/ibmvscsi/ibmvscsi.c b/drivers/scsi/ibmvscsi/ibmvscsi.c
index f9d7ec4..e5478b0 100644
--- a/drivers/scsi/ibmvscsi/ibmvscsi.c
+++ b/drivers/scsi/ibmvscsi/ibmvscsi.c
@@ -84,6 +84,7 @@
*/
static int max_id = 64;
static int max_channel = 3;
+static int max_lun = 8;
static int init_timeout = 300;
static int login_timeout = 60;
static int info_timeout = 30;
@@ -117,6 +118,8 @@ module_param_named(fast_fail, fast_fail, int, S_IRUGO | S_IWUSR);
MODULE_PARM_DESC(fast_fail, "Enable fast fail. [Default=1]");
module_param_named(client_reserve, client_reserve, int, S_IRUGO );
MODULE_PARM_DESC(client_reserve, "Attempt client managed reserve/release");
+module_param(max_lun, int, S_IRUGO);
+MODULE_PARM_DESC(max_lun, "Maximum LUN value [Default=8]");

static void ibmvscsi_handle_crq(struct viosrp_crq *crq,
struct ibmvscsi_host_data *hostdata);
@@ -2289,7 +2292,7 @@ static int ibmvscsi_probe(struct vio_dev *vdev, const struct vio_device_id *id)
goto init_pool_failed;
}

- host->max_lun = 8;
+ host->max_lun = max_lun;
host->max_id = max_id;
host->max_channel = max_channel;
host->max_cmd_len = 16;
--
2.1.0