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| author | Mike Christie <michael.christie@oracle.com> | 2020-11-01 19:59:34 +0100 |
|---|---|---|
| committer | Martin K. Petersen <martin.petersen@oracle.com> | 2020-11-05 04:39:38 +0100 |
| commit | 94a0dfcf7d33ea96bf3eb0c33e4239942a4ff087 (patch) | |
| tree | cc8eba335f47d6d17801c15466b630417b0970c0 /drivers/target/loopback | |
| parent | scsi: target: Make state_list per CPU (diff) | |
| download | linux-94a0dfcf7d33ea96bf3eb0c33e4239942a4ff087.tar.xz linux-94a0dfcf7d33ea96bf3eb0c33e4239942a4ff087.zip | |
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/loopback')
| -rw-r--r-- | drivers/target/loopback/tcm_loop.c | 14 |
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 | |