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| author | Stanislav Nijnikov <stanislav.nijnikov@wdc.com> | 2018-02-15 13:14:09 +0100 |
|---|---|---|
| committer | Martin K. Petersen <martin.petersen@oracle.com> | 2018-02-16 00:35:04 +0100 |
| commit | d829fc8a1058851f1058b4a29ea02da125c1684a (patch) | |
| tree | baf7a82c8c97a92ab0cacf794ee88e4853c19e3f /drivers/scsi/ufs/ufs.h | |
| parent | scsi: core: host template attribute groups (diff) | |
| download | linux-d829fc8a1058851f1058b4a29ea02da125c1684a.tar.xz linux-d829fc8a1058851f1058b4a29ea02da125c1684a.zip | |
scsi: ufs: sysfs: unit descriptor
This patch introduces a sysfs group entry for the UFS unit descriptor
parameters. The group adds "unit_descriptor" folder under the corresponding
SCSI device sysfs entry (/sys/class/scsi_device/*/device/). The parameters
are shown as hexadecimal numbers. The full information about the parameters
could be found at UFS specifications 2.1.
Signed-off-by: Stanislav Nijnikov <stanislav.nijnikov@wdc.com>
Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Diffstat (limited to 'drivers/scsi/ufs/ufs.h')
| -rw-r--r-- | drivers/scsi/ufs/ufs.h | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/drivers/scsi/ufs/ufs.h b/drivers/scsi/ufs/ufs.h index 6bfeedb934f1..73870597e34c 100644 --- a/drivers/scsi/ufs/ufs.h +++ b/drivers/scsi/ufs/ufs.h @@ -182,6 +182,7 @@ enum unit_desc_param { UNIT_DESC_PARAM_BOOT_LUN_ID = 0x4, UNIT_DESC_PARAM_LU_WR_PROTECT = 0x5, UNIT_DESC_PARAM_LU_Q_DEPTH = 0x6, + UNIT_DESC_PARAM_PSA_SENSITIVE = 0x7, UNIT_DESC_PARAM_MEM_TYPE = 0x8, UNIT_DESC_PARAM_DATA_RELIABILITY = 0x9, UNIT_DESC_PARAM_LOGICAL_BLK_SIZE = 0xA, @@ -592,4 +593,14 @@ struct ufs_dev_desc { char model[MAX_MODEL_LEN + 1]; }; +/** + * ufs_is_valid_unit_desc_lun - checks if the given LUN has a unit descriptor + * @lun: LU number to check + * @return: true if the lun has a matching unit descriptor, false otherwise + */ +static inline bool ufs_is_valid_unit_desc_lun(u8 lun) +{ + return lun == UFS_UPIU_RPMB_WLUN || (lun < UFS_UPIU_MAX_GENERAL_LUN); +} + #endif /* End of Header */ |