diff options
Diffstat (limited to 'Documentation/ABI/testing/sysfs-driver-ufs')
| -rw-r--r-- | Documentation/ABI/testing/sysfs-driver-ufs | 134 |
1 files changed, 133 insertions, 1 deletions
diff --git a/Documentation/ABI/testing/sysfs-driver-ufs b/Documentation/ABI/testing/sysfs-driver-ufs index e36d2de16cbd..a90612ab5780 100644 --- a/Documentation/ABI/testing/sysfs-driver-ufs +++ b/Documentation/ABI/testing/sysfs-driver-ufs @@ -711,7 +711,7 @@ Description: This file shows the thin provisioning type. This is one of The file is read only. -What: /sys/class/scsi_device/*/device/unit_descriptor/physical_memory_resourse_count +What: /sys/class/scsi_device/*/device/unit_descriptor/physical_memory_resource_count Date: February 2018 Contact: Stanislav Nijnikov <stanislav.nijnikov@wdc.com> Description: This file shows the total physical memory resources. This is @@ -1636,3 +1636,135 @@ Description: attribute value. The attribute is read only. + +What: /sys/bus/platform/drivers/ufshcd/*/wb_resize_enable +What: /sys/bus/platform/devices/*.ufs/wb_resize_enable +Date: April 2025 +Contact: Huan Tang <tanghuan@vivo.com> +Description: + The host can enable the WriteBooster buffer resize by setting this + attribute. + + ======== ====================================== + idle There is no resize operation + decrease Decrease WriteBooster buffer size + increase Increase WriteBooster buffer size + ======== ====================================== + + The file is write only. + +What: /sys/bus/platform/drivers/ufshcd/*/attributes/wb_resize_hint +What: /sys/bus/platform/devices/*.ufs/attributes/wb_resize_hint +Date: April 2025 +Contact: Huan Tang <tanghuan@vivo.com> +Description: + wb_resize_hint indicates hint information about which type of resize + for WriteBooster buffer is recommended by the device. + + ========= ====================================== + keep Recommend keep the buffer size + decrease Recommend to decrease the buffer size + increase Recommend to increase the buffer size + ========= ====================================== + + The file is read only. + +What: /sys/bus/platform/drivers/ufshcd/*/attributes/wb_resize_status +What: /sys/bus/platform/devices/*.ufs/attributes/wb_resize_status +Date: April 2025 +Contact: Huan Tang <tanghuan@vivo.com> +Description: + The host can check the resize operation status of the WriteBooster + buffer by reading this attribute. + + ================ ======================================== + idle Resize operation is not issued + in_progress Resize operation in progress + complete_success Resize operation completed successfully + general_failure Resize operation general failure + ================ ======================================== + + The file is read only. + +What: /sys/bus/platform/drivers/ufshcd/*/hid/analysis_trigger +What: /sys/bus/platform/devices/*.ufs/hid/analysis_trigger +Date: May 2025 +Contact: Huan Tang <tanghuan@vivo.com> +Description: + The host can enable or disable HID analysis operation. + + ======= ========================================= + disable disable HID analysis operation + enable enable HID analysis operation + ======= ========================================= + + The file is write only. + +What: /sys/bus/platform/drivers/ufshcd/*/hid/defrag_trigger +What: /sys/bus/platform/devices/*.ufs/hid/defrag_trigger +Date: May 2025 +Contact: Huan Tang <tanghuan@vivo.com> +Description: + The host can enable or disable HID defragmentation operation. + + ======= ========================================= + disable disable HID defragmentation operation + enable enable HID defragmentation operation + ======= ========================================= + + The attribute is write only. + +What: /sys/bus/platform/drivers/ufshcd/*/hid/fragmented_size +What: /sys/bus/platform/devices/*.ufs/hid/fragmented_size +Date: May 2025 +Contact: Huan Tang <tanghuan@vivo.com> +Description: + The total fragmented size in the device is reported through + this attribute. + + The attribute is read only. + +What: /sys/bus/platform/drivers/ufshcd/*/hid/defrag_size +What: /sys/bus/platform/devices/*.ufs/hid/defrag_size +Date: May 2025 +Contact: Huan Tang <tanghuan@vivo.com> +Description: + The host sets the size to be defragmented by an HID + defragmentation operation. + + The attribute is read/write. + +What: /sys/bus/platform/drivers/ufshcd/*/hid/progress_ratio +What: /sys/bus/platform/devices/*.ufs/hid/progress_ratio +Date: May 2025 +Contact: Huan Tang <tanghuan@vivo.com> +Description: + Defragmentation progress is reported by this attribute, + indicates the ratio of the completed defragmentation size + over the requested defragmentation size. + + ==== ============================================ + 1 1% + ... + 100 100% + ==== ============================================ + + The attribute is read only. + +What: /sys/bus/platform/drivers/ufshcd/*/hid/state +What: /sys/bus/platform/devices/*.ufs/hid/state +Date: May 2025 +Contact: Huan Tang <tanghuan@vivo.com> +Description: + The HID state is reported by this attribute. + + ==================== =========================== + idle Idle (analysis required) + analysis_in_progress Analysis in progress + defrag_required Defrag required + defrag_in_progress Defrag in progress + defrag_completed Defrag completed + defrag_not_required Defrag is not required + ==================== =========================== + + The attribute is read only. |