From: Mike Christie <michael.christie@oracle.com>
To: himanshu.madhani@oracle.com, njavali@marvell.com,
james.bottomley@hansenpartnership.com,
linux-scsi@vger.kernel.org, target-devel@vger.kernel.org
Subject: [PATCH 8/8] tcm loop: allow queues, can queue and cmd per lun to be settable
Date: Sun, 01 Nov 2020 18:59:34 +0000 [thread overview]
Message-ID: <1604257174-4524-9-git-send-email-michael.christie@oracle.com> (raw)
In-Reply-To: <1604257174-4524-1-git-send-email-michael.christie@oracle.com>
Make can_queue, nr_hw_queues and cmd_per_lun settable by the user
instead of hard coding them.
Signed-off-by: Mike Christie <michael.christie@oracle.com>
Reviewed-by: Himanshu Madhani <himanshu.madhani@oracle.com>
---
drivers/target/loopback/tcm_loop.c | 14 ++++++++++++--
1 file changed, 12 insertions(+), 2 deletions(-)
diff --git a/drivers/target/loopback/tcm_loop.c b/drivers/target/loopback/tcm_loop.c
index 16d5a4e..badba43 100644
--- a/drivers/target/loopback/tcm_loop.c
+++ b/drivers/target/loopback/tcm_loop.c
@@ -46,6 +46,15 @@
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 int tcm_loop_target_reset(struct scsi_cmnd *sc)
.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 |
--
1.8.3.1
next prev parent reply other threads:[~2020-11-01 18:59 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-11-01 18:59 [PATCH 0/8 v3] target: fix up locking/refcounting in IO paths Mike Christie
2020-11-01 18:59 ` [PATCH 1/8] target: fix lun ref count handling Mike Christie
2020-11-11 2:58 ` Martin K. Petersen
2020-11-01 18:59 ` [PATCH 2/8] target: fix cmd_count ref leak Mike Christie
2020-11-01 18:59 ` [PATCH 3/8] qla2xxx: drop TARGET_SCF_LOOKUP_LUN_FROM_TAG Mike Christie
2020-11-01 18:59 ` [PATCH 4/8] target: remove TARGET_SCF_LOOKUP_LUN_FROM_TAG Mike Christie
2020-11-01 18:59 ` [PATCH 5/8] qla2xxx: move sess cmd list/lock to driver Mike Christie
2020-11-01 18:59 ` [PATCH 6/8] target: Drop sess_cmd_lock from IO path Mike Christie
2020-11-01 18:59 ` [PATCH 7/8] target: make state_list per cpu Mike Christie
2020-11-01 18:59 ` Mike Christie [this message]
2020-11-05 3:41 ` [PATCH 0/8 v3] target: fix up locking/refcounting in IO paths Martin K. Petersen
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