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| author | Bean Huo <beanhuo@micron.com> | 2020-06-03 11:19:59 +0200 |
|---|---|---|
| committer | Martin K. Petersen <martin.petersen@oracle.com> | 2020-06-16 05:17:49 +0200 |
| commit | 72fb690eece12a344e6ce5a7c192a304fd37e04e (patch) | |
| tree | acfd9ba9177d23502d8d99707b7972e853cc30fd /drivers/scsi/ufs/ufs.h | |
| parent | scsi: ufs: Clean up ufs initialization path (diff) | |
| download | linux-72fb690eece12a344e6ce5a7c192a304fd37e04e.tar.xz linux-72fb690eece12a344e6ce5a7c192a304fd37e04e.zip | |
scsi: ufs: Add compatibility with 3.1 UFS unit descriptor length
For UFS 3.1, the normal unit descriptor is 10 bytes larger than the RPMB
unit. However, both descriptors share the same desc_idn, to cover both unit
descriptors with one length, we choose the normal unit descriptor length by
desc_index.
Link: https://lore.kernel.org/r/20200603091959.27618-6-huobean@gmail.com
Reviewed-by: Avri Altman <avri.altman@wdc.com>
Signed-off-by: Bean Huo <beanhuo@micron.com>
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 | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/scsi/ufs/ufs.h b/drivers/scsi/ufs/ufs.h index 8770255b5dc0..250e1a905a14 100644 --- a/drivers/scsi/ufs/ufs.h +++ b/drivers/scsi/ufs/ufs.h @@ -63,6 +63,7 @@ #define UFS_UPIU_MAX_UNIT_NUM_ID 0x7F #define UFS_MAX_LUNS (SCSI_W_LUN_BASE + UFS_UPIU_MAX_UNIT_NUM_ID) #define UFS_UPIU_WLUN_ID (1 << 7) +#define UFS_RPMB_UNIT 0xC4 /* WriteBooster buffer is available only for the logical unit from 0 to 7 */ #define UFS_UPIU_MAX_WB_LUN_ID 8 |