[PATCH v1 2/5] mpt3sas: Added issue_scsi_cmd_to_bringup_drive module parameter part-1

[Ranjan Kumar <ranjan.kumar@broadcom.com>]

Introduced a new module parameter "issue_scsi_cmd_to_bringup_drive"
(default=1) which allows overriding the driver's behavior of issuing
SCSI TEST_UNIT_READY/START_UNIT commands to bring devices to READY
state during unblock.

Signed-off-by: Ranjan Kumar <ranjan.kumar@broadcom.com>
---
 drivers/scsi/mpt3sas/mpt3sas_scsih.c | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/drivers/scsi/mpt3sas/mpt3sas_scsih.c b/drivers/scsi/mpt3sas/mpt3sas_scsih.c
index ecef13de3bba..af8020fc7b65 100644
--- a/drivers/scsi/mpt3sas/mpt3sas_scsih.c
+++ b/drivers/scsi/mpt3sas/mpt3sas_scsih.c
@@ -159,6 +159,15 @@ module_param(enable_sdev_max_qd, bool, 0444);
 MODULE_PARM_DESC(enable_sdev_max_qd,
 	"Enable sdev max qd as can_queue, def=disabled(0)");
 
+/*
+ * permit overriding the SCSI command issuing capability of
+ * the driver to bring the drive to READY state
+ */
+static int issue_scsi_cmd_to_bringup_drive = 1;
+module_param(issue_scsi_cmd_to_bringup_drive, int, 0444);
+MODULE_PARM_DESC(issue_scsi_cmd_to_bringup_drive, "allow host driver to\n"
+	"issue SCSI commands to bring the drive to READY state, default=1 ");
+
 static int multipath_on_hba = -1;
 module_param(multipath_on_hba, int, 0);
 MODULE_PARM_DESC(multipath_on_hba,
-- 
2.47.3