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scsi: smartpqi: add module parameters

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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>
This commit is contained in:
Kevin Barnett 2017-05-03 18:55:43 -05:00 committed by Martin K. Petersen
parent 8a994a04fc
commit 5a259e32ba
1 changed files with 24 additions and 5 deletions
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29
drivers/scsi/smartpqi/smartpqi_init.c
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@ -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);