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| author | Bean Huo <beanhuo@micron.com> | 2021-08-04 20:21:27 +0200 |
|---|---|---|
| committer | Martin K. Petersen <martin.petersen@oracle.com> | 2021-08-05 23:21:08 -0400 |
| commit | 63522bf3aced0a782b59f0314dbad5cdc8b14c59 (patch) | |
| tree | b0623d9474dc9676a1b20f30c8e73fe118e2e3bc /drivers/scsi/ufs/ufs_quirks.h | |
| parent | f0101af435c4640e78c0fa0dbacb443c0f31cfb7 (diff) | |
| download | lwn-63522bf3aced0a782b59f0314dbad5cdc8b14c59.tar.gz lwn-63522bf3aced0a782b59f0314dbad5cdc8b14c59.zip | |
scsi: ufs: core: Add L2P entry swap quirk for Micron UFS
For Micron UFS devices the L2P entry need to be byteswapped before sending
an HPB READ command to the UFS device. Add the quirk
UFS_DEVICE_QUIRK_SWAP_L2P_ENTRY_FOR_HPB_READ to address this.
Link: https://lore.kernel.org/r/20210804182128.458356-2-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_quirks.h')
| -rw-r--r-- | drivers/scsi/ufs/ufs_quirks.h | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/drivers/scsi/ufs/ufs_quirks.h b/drivers/scsi/ufs/ufs_quirks.h index 07f559ac5883..35ec9ea79869 100644 --- a/drivers/scsi/ufs/ufs_quirks.h +++ b/drivers/scsi/ufs/ufs_quirks.h @@ -116,4 +116,10 @@ struct ufs_dev_fix { */ #define UFS_DEVICE_QUIRK_DELAY_AFTER_LPM (1 << 11) +/* + * Some UFS devices require L2P entry should be swapped before being sent to the + * UFS device for HPB READ command. + */ +#define UFS_DEVICE_QUIRK_SWAP_L2P_ENTRY_FOR_HPB_READ (1 << 12) + #endif /* UFS_QUIRKS_H_ */ |