Commit f5efd4fe authored by Bean Huo's avatar Bean Huo Committed by Martin K. Petersen
Browse files

scsi: ufs: core: Add lu_enable sysfs node 

We need to check whether HPB is enabled on a given LU from the userspace
tool. Add lu_enable sysfs node.

Link: https://lore.kernel.org/r/20210804182128.458356-3-huobean@gmail.com


Tested-by: default avatarAvri Altman <avri.altman@wdc.com>
Reviewed-by: default avatarAvri Altman <avri.altman@wdc.com>
Signed-off-by: default avatarBean Huo <beanhuo@micron.com>
Signed-off-by: default avatarMartin K. Petersen <martin.petersen@oracle.com>
parent 63522bf3

drivers/scsi/ufs/ufs-sysfs.c

+2 −1
Original line number Diff line number Diff line
@@ -1163,6 +1163,7 @@ static DEVICE_ATTR_RO(_pname) 
#define UFS_UNIT_DESC_PARAM(_name, _uname, _size)			\

	UFS_LUN_DESC_PARAM(_name, _uname, UNIT, _size)



UFS_UNIT_DESC_PARAM(lu_enable, _LU_ENABLE, 1);

UFS_UNIT_DESC_PARAM(boot_lun_id, _BOOT_LUN_ID, 1);

UFS_UNIT_DESC_PARAM(lun_write_protect, _LU_WR_PROTECT, 1);

UFS_UNIT_DESC_PARAM(lun_queue_depth, _LU_Q_DEPTH, 1);
@@ -1181,8 +1182,8 @@ UFS_UNIT_DESC_PARAM(hpb_pinned_region_start_offset, _HPB_PIN_RGN_START_OFF, 2); 
UFS_UNIT_DESC_PARAM(hpb_number_pinned_regions, _HPB_NUM_PIN_RGNS, 2);

UFS_UNIT_DESC_PARAM(wb_buf_alloc_units, _WB_BUF_ALLOC_UNITS, 4);





static struct attribute *ufs_sysfs_unit_descriptor[] = {

	&dev_attr_lu_enable.attr,

	&dev_attr_boot_lun_id.attr,

	&dev_attr_lun_write_protect.attr,

	&dev_attr_lun_queue_depth.attr,