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authorKevin Barnett <kevin.barnett@microsemi.com>2017-05-04 02:55:43 +0300
committerMartin K. Petersen <martin.petersen@oracle.com>2017-06-13 03:48:04 +0300
commit5a259e32ba32c380537f3d186a311e528b9f9c94 (patch)
treef42a75b533b09bb8c772d1822484e540f9e5c748 /drivers/scsi/smartpqi
parent8a994a04fc3a8edbcc0ba1d17219b6d8f4c38009 (diff)
downloadlinux-5a259e32ba32c380537f3d186a311e528b9f9c94.tar.xz
scsi: smartpqi: add module parameters
Add module parameters to disable heartbeat support and to disable shutting down the controller when a controller is taken offline. Reviewed-by: Scott Benesh <scott.benesh@microsemi.com> Signed-off-by: Kevin Barnett <kevin.barnett@microsemi.com> Signed-off-by: Don Brace <don.brace@microsemi.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Diffstat (limited to 'drivers/scsi/smartpqi')
-rw-r--r--drivers/scsi/smartpqi/smartpqi_init.c29
1 files changed, 24 insertions, 5 deletions
diff --git a/drivers/scsi/smartpqi/smartpqi_init.c b/drivers/scsi/smartpqi/smartpqi_init.c
index 21fbcf368af1..7bf6222c19a7 100644
--- a/drivers/scsi/smartpqi/smartpqi_init.c
+++ b/drivers/scsi/smartpqi/smartpqi_init.c
@@ -122,6 +122,18 @@ module_param_named(disable_device_id_wildcards,
MODULE_PARM_DESC(disable_device_id_wildcards,
"Disable device ID wildcards.");
+static int pqi_disable_heartbeat;
+module_param_named(disable_heartbeat,
+ pqi_disable_heartbeat, int, 0644);
+MODULE_PARM_DESC(disable_heartbeat,
+ "Disable heartbeat.");
+
+static int pqi_disable_ctrl_shutdown;
+module_param_named(disable_ctrl_shutdown,
+ pqi_disable_ctrl_shutdown, int, 0644);
+MODULE_PARM_DESC(disable_ctrl_shutdown,
+ "Disable controller shutdown when controller locked up.");
+
static char *pqi_lockup_action_param;
module_param_named(lockup_action,
pqi_lockup_action_param, charp, 0644);
@@ -5962,10 +5974,16 @@ static int pqi_process_config_table(struct pqi_ctrl_info *ctrl_info)
switch (get_unaligned_le16(&section->section_id)) {
case PQI_CONFIG_TABLE_SECTION_HEARTBEAT:
- ctrl_info->heartbeat_counter = table_iomem_addr +
- section_offset +
- offsetof(struct pqi_config_table_heartbeat,
- heartbeat_counter);
+ if (pqi_disable_heartbeat)
+ dev_warn(&ctrl_info->pci_dev->dev,
+ "heartbeat disabled by module parameter\n");
+ else
+ ctrl_info->heartbeat_counter =
+ table_iomem_addr +
+ section_offset +
+ offsetof(
+ struct pqi_config_table_heartbeat,
+ heartbeat_counter);
break;
}
@@ -6550,7 +6568,8 @@ static void pqi_take_ctrl_offline(struct pqi_ctrl_info *ctrl_info)
ctrl_info->controller_online = false;
ctrl_info->pqi_mode_enabled = false;
pqi_ctrl_block_requests(ctrl_info);
- sis_shutdown_ctrl(ctrl_info);
+ if (!pqi_disable_ctrl_shutdown)
+ sis_shutdown_ctrl(ctrl_info);
pci_disable_device(ctrl_info->pci_dev);
dev_err(&ctrl_info->pci_dev->dev, "controller offline\n");
schedule_work(&ctrl_info->ctrl_offline_work);