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authorMike Christie <michael.christie@oracle.com>2020-11-01 21:59:34 +0300
committerMartin K. Petersen <martin.petersen@oracle.com>2020-11-05 06:39:38 +0300
commit94a0dfcf7d33ea96bf3eb0c33e4239942a4ff087 (patch)
treecc8eba335f47d6d17801c15466b630417b0970c0 /drivers/target
parent1526d9f10c6184031e42afad0adbdde1213e8ad1 (diff)
downloadlinux-94a0dfcf7d33ea96bf3eb0c33e4239942a4ff087.tar.xz
scsi: tcm_loop: Allow queues, can_queue and cmd_per_lun to be settable
Make can_queue, nr_hw_queues and cmd_per_lun settable by the user instead of hard coding them. Link: https://lore.kernel.org/r/1604257174-4524-9-git-send-email-michael.christie@oracle.com Reviewed-by: Himanshu Madhani <himanshu.madhani@oracle.com> Signed-off-by: Mike Christie <michael.christie@oracle.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Diffstat (limited to 'drivers/target')
-rw-r--r--drivers/target/loopback/tcm_loop.c14
1 files changed, 12 insertions, 2 deletions
diff --git a/drivers/target/loopback/tcm_loop.c b/drivers/target/loopback/tcm_loop.c
index 16d5a4e117a2..badba437e5f9 100644
--- a/drivers/target/loopback/tcm_loop.c
+++ b/drivers/target/loopback/tcm_loop.c
@@ -46,6 +46,15 @@ static int tcm_loop_hba_no_cnt;
static int tcm_loop_queue_status(struct se_cmd *se_cmd);
+static unsigned int tcm_loop_nr_hw_queues = 1;
+module_param_named(nr_hw_queues, tcm_loop_nr_hw_queues, uint, 0644);
+
+static unsigned int tcm_loop_can_queue = 1024;
+module_param_named(can_queue, tcm_loop_can_queue, uint, 0644);
+
+static unsigned int tcm_loop_cmd_per_lun = 1024;
+module_param_named(cmd_per_lun, tcm_loop_cmd_per_lun, uint, 0644);
+
/*
* Called from struct target_core_fabric_ops->check_stop_free()
*/
@@ -305,10 +314,8 @@ static struct scsi_host_template tcm_loop_driver_template = {
.eh_abort_handler = tcm_loop_abort_task,
.eh_device_reset_handler = tcm_loop_device_reset,
.eh_target_reset_handler = tcm_loop_target_reset,
- .can_queue = 1024,
.this_id = -1,
.sg_tablesize = 256,
- .cmd_per_lun = 1024,
.max_sectors = 0xFFFF,
.dma_boundary = PAGE_SIZE - 1,
.module = THIS_MODULE,
@@ -342,6 +349,9 @@ static int tcm_loop_driver_probe(struct device *dev)
sh->max_lun = 0;
sh->max_channel = 0;
sh->max_cmd_len = SCSI_MAX_VARLEN_CDB_SIZE;
+ sh->nr_hw_queues = tcm_loop_nr_hw_queues;
+ sh->can_queue = tcm_loop_can_queue;
+ sh->cmd_per_lun = tcm_loop_cmd_per_lun;
host_prot = SHOST_DIF_TYPE1_PROTECTION | SHOST_DIF_TYPE2_PROTECTION |
SHOST_DIF_TYPE3_PROTECTION | SHOST_DIX_TYPE1_PROTECTION |