diff options
| author | Stanley Chu <[email protected]> | 2020-05-08 16:01:08 +0800 |
|---|---|---|
| committer | Martin K. Petersen <[email protected]> | 2020-05-11 22:48:41 -0400 |
| commit | 817d7e140283f4afc766569c670997df79a7c9ee (patch) | |
| tree | ee76d113a11ed6de4365ecad6ec01e5029968562 /tools/perf/scripts/python/bin | |
| parent | 6e27a86aed9760780666b062abbcf5e1408e8376 (diff) | |
scsi: ufs: Enable WriteBooster on some pre-3.1 UFS devices
The WriteBooster feature can be supported by some pre-3.1 UFS devices by
upgrading firmware.
To enable WriteBooster feature in such devices, introduce a device quirk to
relax the entrance condition of ufshcd_wb_probe() to allow host driver to
check those devices' WriteBooster capability.
WriteBooster feature can be available if below all conditions are
satisfied,
1. Host enables WriteBooster capability
2. UFS 3.1 device or UFS pre-3.1 device with quirk
UFS_DEVICE_QUIRK_SUPPORT_EXTENDED_FEATURES enabled
3. The device descriptor shall have DEVICE_DESC_PARAM_EXT_UFS_FEATURE_SUP
field
4. WriteBooster support is specified in above field
Link: https://lore.kernel.org/r/[email protected]
Reviewed-by: Avri Altman <[email protected]>
Reviewed-by: Asutosh Das <[email protected]>
Signed-off-by: Stanley Chu <[email protected]>
Signed-off-by: Martin K. Petersen <[email protected]>
Diffstat (limited to 'tools/perf/scripts/python/bin')
0 files changed, 0 insertions, 0 deletions