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scsi: hisi_sas: Enable debugfs support by default

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Add a config option to enable debugfs support by default. And if debugfs
support is enabled by default, dump count default value is increased to 50
as generally users want something bigger than the current default in that
situation.

Link: https://lore.kernel.org/r/1611659068-131975-4-git-send-email-john.garry@huawei.com
Signed-off-by: Luo Jiaxing <luojiaxing@huawei.com>
Signed-off-by: John Garry <john.garry@huawei.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
This commit is contained in:
Luo Jiaxing 2021-01-26 19:04:26 +08:00 committed by Martin K. Petersen
parent 69bfa5fd7b
commit 1dbe61bf7d
2 changed files with 17 additions and 2 deletions
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6
drivers/scsi/hisi_sas/Kconfig
View file

@ -18,3 +18,9 @@ config SCSI_HISI_SAS_PCI
depends on ACPI
help
This driver supports HiSilicon's SAS HBA based on PCI device
config SCSI_HISI_SAS_DEBUGFS_DEFAULT_ENABLE
bool "HiSilicon SAS debugging default enable"
depends on SCSI_HISI_SAS
help
Set Y to default enable DEBUGFS for SCSI_HISI_SAS

13
drivers/scsi/hisi_sas/hisi_sas_main.c
View file

@ -2722,12 +2722,21 @@ int hisi_sas_remove(struct platform_device *pdev)
}
EXPORT_SYMBOL_GPL(hisi_sas_remove);
#if IS_ENABLED(CONFIG_SCSI_HISI_SAS_DEBUGFS_DEFAULT_ENABLE)
#define DEBUGFS_ENABLE_DEFAULT "enabled"
bool hisi_sas_debugfs_enable = true;
u32 hisi_sas_debugfs_dump_count = 50;
#else
#define DEBUGFS_ENABLE_DEFAULT "disabled"
bool hisi_sas_debugfs_enable;
u32 hisi_sas_debugfs_dump_count = 1;
#endif
EXPORT_SYMBOL_GPL(hisi_sas_debugfs_enable);
module_param_named(debugfs_enable, hisi_sas_debugfs_enable, bool, 0444);
MODULE_PARM_DESC(hisi_sas_debugfs_enable, "Enable driver debugfs (default disabled)");
MODULE_PARM_DESC(hisi_sas_debugfs_enable,
"Enable driver debugfs (default "DEBUGFS_ENABLE_DEFAULT")");
u32 hisi_sas_debugfs_dump_count = 1;
EXPORT_SYMBOL_GPL(hisi_sas_debugfs_dump_count);
module_param_named(debugfs_dump_count, hisi_sas_debugfs_dump_count, uint, 0444);
MODULE_PARM_DESC(hisi_sas_debugfs_dump_count, "Number of debugfs dumps to allow");