What: /sys/bus/platform/drivers/ufshcd/*/rpm_lvl
What: /sys/bus/platform/devices/*.ufs/rpm_lvl
Date: September 2014
-Contact: Subhash Jadavani <subhashj@codeaurora.org>
+Contact: Can Guo <quic_cang@quicinc.com>
Description: This entry could be used to set or show the UFS device
runtime power management level. The current driver
implementation supports 7 levels with next target states:
What: /sys/bus/platform/drivers/ufshcd/*/rpm_target_dev_state
What: /sys/bus/platform/devices/*.ufs/rpm_target_dev_state
Date: February 2018
-Contact: Subhash Jadavani <subhashj@codeaurora.org>
+Contact: Can Guo <quic_cang@quicinc.com>
Description: This entry shows the target power mode of an UFS device
for the chosen runtime power management level.
What: /sys/bus/platform/drivers/ufshcd/*/rpm_target_link_state
What: /sys/bus/platform/devices/*.ufs/rpm_target_link_state
Date: February 2018
-Contact: Subhash Jadavani <subhashj@codeaurora.org>
+Contact: Can Guo <quic_cang@quicinc.com>
Description: This entry shows the target state of an UFS UIC link
for the chosen runtime power management level.
What: /sys/bus/platform/drivers/ufshcd/*/spm_lvl
What: /sys/bus/platform/devices/*.ufs/spm_lvl
Date: September 2014
-Contact: Subhash Jadavani <subhashj@codeaurora.org>
+Contact: Can Guo <quic_cang@quicinc.com>
Description: This entry could be used to set or show the UFS device
system power management level. The current driver
implementation supports 7 levels with next target states:
What: /sys/bus/platform/drivers/ufshcd/*/spm_target_dev_state
What: /sys/bus/platform/devices/*.ufs/spm_target_dev_state
Date: February 2018
-Contact: Subhash Jadavani <subhashj@codeaurora.org>
+Contact: Can Guo <quic_cang@quicinc.com>
Description: This entry shows the target power mode of an UFS device
for the chosen system power management level.
What: /sys/bus/platform/drivers/ufshcd/*/spm_target_link_state
What: /sys/bus/platform/devices/*.ufs/spm_target_link_state
Date: February 2018
-Contact: Subhash Jadavani <subhashj@codeaurora.org>
+Contact: Can Guo <quic_cang@quicinc.com>
Description: This entry shows the target state of an UFS UIC link
for the chosen system power management level.
What: /sys/bus/platform/drivers/ufshcd/*/monitor/monitor_enable
What: /sys/bus/platform/devices/*.ufs/monitor/monitor_enable
Date: January 2021
-Contact: Can Guo <cang@codeaurora.org>
+Contact: Can Guo <quic_cang@quicinc.com>
Description: This file shows the status of performance monitor enablement
and it can be used to start/stop the monitor. When the monitor
is stopped, the performance data collected is also cleared.
What: /sys/bus/platform/drivers/ufshcd/*/monitor/monitor_chunk_size
What: /sys/bus/platform/devices/*.ufs/monitor/monitor_chunk_size
Date: January 2021
-Contact: Can Guo <cang@codeaurora.org>
+Contact: Can Guo <quic_cang@quicinc.com>
Description: This file tells the monitor to focus on requests transferring
data of specific chunk size (in Bytes). 0 means any chunk size.
It can only be changed when monitor is disabled.
What: /sys/bus/platform/drivers/ufshcd/*/monitor/read_total_sectors
What: /sys/bus/platform/devices/*.ufs/monitor/read_total_sectors
Date: January 2021
-Contact: Can Guo <cang@codeaurora.org>
+Contact: Can Guo <quic_cang@quicinc.com>
Description: This file shows how many sectors (in 512 Bytes) have been
sent from device to host after monitor gets started.
What: /sys/bus/platform/drivers/ufshcd/*/monitor/read_total_busy
What: /sys/bus/platform/devices/*.ufs/monitor/read_total_busy
Date: January 2021
-Contact: Can Guo <cang@codeaurora.org>
+Contact: Can Guo <quic_cang@quicinc.com>
Description: This file shows how long (in micro seconds) has been spent
sending data from device to host after monitor gets started.
What: /sys/bus/platform/drivers/ufshcd/*/monitor/read_nr_requests
What: /sys/bus/platform/devices/*.ufs/monitor/read_nr_requests
Date: January 2021
-Contact: Can Guo <cang@codeaurora.org>
+Contact: Can Guo <quic_cang@quicinc.com>
Description: This file shows how many read requests have been sent after
monitor gets started.
What: /sys/bus/platform/drivers/ufshcd/*/monitor/read_req_latency_max
What: /sys/bus/platform/devices/*.ufs/monitor/read_req_latency_max
Date: January 2021
-Contact: Can Guo <cang@codeaurora.org>
+Contact: Can Guo <quic_cang@quicinc.com>
Description: This file shows the maximum latency (in micro seconds) of
read requests after monitor gets started.
What: /sys/bus/platform/drivers/ufshcd/*/monitor/read_req_latency_min
What: /sys/bus/platform/devices/*.ufs/monitor/read_req_latency_min
Date: January 2021
-Contact: Can Guo <cang@codeaurora.org>
+Contact: Can Guo <quic_cang@quicinc.com>
Description: This file shows the minimum latency (in micro seconds) of
read requests after monitor gets started.
What: /sys/bus/platform/drivers/ufshcd/*/monitor/read_req_latency_avg
What: /sys/bus/platform/devices/*.ufs/monitor/read_req_latency_avg
Date: January 2021
-Contact: Can Guo <cang@codeaurora.org>
+Contact: Can Guo <quic_cang@quicinc.com>
Description: This file shows the average latency (in micro seconds) of
read requests after monitor gets started.
What: /sys/bus/platform/drivers/ufshcd/*/monitor/read_req_latency_sum
What: /sys/bus/platform/devices/*.ufs/monitor/read_req_latency_sum
Date: January 2021
-Contact: Can Guo <cang@codeaurora.org>
+Contact: Can Guo <quic_cang@quicinc.com>
Description: This file shows the total latency (in micro seconds) of
read requests sent after monitor gets started.
What: /sys/bus/platform/drivers/ufshcd/*/monitor/write_total_sectors
What: /sys/bus/platform/devices/*.ufs/monitor/write_total_sectors
Date: January 2021
-Contact: Can Guo <cang@codeaurora.org>
+Contact: Can Guo <quic_cang@quicinc.com>
Description: This file shows how many sectors (in 512 Bytes) have been sent
from host to device after monitor gets started.
What: /sys/bus/platform/drivers/ufshcd/*/monitor/write_total_busy
What: /sys/bus/platform/devices/*.ufs/monitor/write_total_busy
Date: January 2021
-Contact: Can Guo <cang@codeaurora.org>
+Contact: Can Guo <quic_cang@quicinc.com>
Description: This file shows how long (in micro seconds) has been spent
sending data from host to device after monitor gets started.
What: /sys/bus/platform/drivers/ufshcd/*/monitor/write_nr_requests
What: /sys/bus/platform/devices/*.ufs/monitor/write_nr_requests
Date: January 2021
-Contact: Can Guo <cang@codeaurora.org>
+Contact: Can Guo <quic_cang@quicinc.com>
Description: This file shows how many write requests have been sent after
monitor gets started.
What: /sys/bus/platform/drivers/ufshcd/*/monitor/write_req_latency_max
What: /sys/bus/platform/devices/*.ufs/monitor/write_req_latency_max
Date: January 2021
-Contact: Can Guo <cang@codeaurora.org>
+Contact: Can Guo <quic_cang@quicinc.com>
Description: This file shows the maximum latency (in micro seconds) of write
requests after monitor gets started.
What: /sys/bus/platform/drivers/ufshcd/*/monitor/write_req_latency_min
What: /sys/bus/platform/devices/*.ufs/monitor/write_req_latency_min
Date: January 2021
-Contact: Can Guo <cang@codeaurora.org>
+Contact: Can Guo <quic_cang@quicinc.com>
Description: This file shows the minimum latency (in micro seconds) of write
requests after monitor gets started.
What: /sys/bus/platform/drivers/ufshcd/*/monitor/write_req_latency_avg
What: /sys/bus/platform/devices/*.ufs/monitor/write_req_latency_avg
Date: January 2021
-Contact: Can Guo <cang@codeaurora.org>
+Contact: Can Guo <quic_cang@quicinc.com>
Description: This file shows the average latency (in micro seconds) of write
requests after monitor gets started.
What: /sys/bus/platform/drivers/ufshcd/*/monitor/write_req_latency_sum
What: /sys/bus/platform/devices/*.ufs/monitor/write_req_latency_sum
Date: January 2021
-Contact: Can Guo <cang@codeaurora.org>
+Contact: Can Guo <quic_cang@quicinc.com>
Description: This file shows the total latency (in micro seconds) of write
requests after monitor gets started.
What: /sys/bus/platform/drivers/ufshcd/*/device_descriptor/wb_presv_us_en
What: /sys/bus/platform/devices/*.ufs/device_descriptor/wb_presv_us_en
Date: June 2020
-Contact: Asutosh Das <asutoshd@codeaurora.org>
+Contact: Asutosh Das <quic_asutoshd@quicinc.com>
Description: This entry shows if preserve user-space was configured
The file is read only.
What: /sys/bus/platform/drivers/ufshcd/*/device_descriptor/wb_shared_alloc_units
What: /sys/bus/platform/devices/*.ufs/device_descriptor/wb_shared_alloc_units
Date: June 2020
-Contact: Asutosh Das <asutoshd@codeaurora.org>
+Contact: Asutosh Das <quic_asutoshd@quicinc.com>
Description: This entry shows the shared allocated units of WB buffer
The file is read only.
What: /sys/bus/platform/drivers/ufshcd/*/device_descriptor/wb_type
What: /sys/bus/platform/devices/*.ufs/device_descriptor/wb_type
Date: June 2020
-Contact: Asutosh Das <asutoshd@codeaurora.org>
+Contact: Asutosh Das <quic_asutoshd@quicinc.com>
Description: This entry shows the configured WB type.
0x1 for shared buffer mode. 0x0 for dedicated buffer mode.
What: /sys/bus/platform/drivers/ufshcd/*/geometry_descriptor/wb_buff_cap_adj
What: /sys/bus/platform/devices/*.ufs/geometry_descriptor/wb_buff_cap_adj
Date: June 2020
-Contact: Asutosh Das <asutoshd@codeaurora.org>
+Contact: Asutosh Das <quic_asutoshd@quicinc.com>
Description: This entry shows the total user-space decrease in shared
buffer mode.
The value of this parameter is 3 for TLC NAND when SLC mode
What: /sys/bus/platform/drivers/ufshcd/*/geometry_descriptor/wb_max_alloc_units
What: /sys/bus/platform/devices/*.ufs/geometry_descriptor/wb_max_alloc_units
Date: June 2020
-Contact: Asutosh Das <asutoshd@codeaurora.org>
+Contact: Asutosh Das <quic_asutoshd@quicinc.com>
Description: This entry shows the Maximum total WriteBooster Buffer size
which is supported by the entire device.
What: /sys/bus/platform/drivers/ufshcd/*/geometry_descriptor/wb_max_wb_luns
What: /sys/bus/platform/devices/*.ufs/geometry_descriptor/wb_max_wb_luns
Date: June 2020
-Contact: Asutosh Das <asutoshd@codeaurora.org>
+Contact: Asutosh Das <quic_asutoshd@quicinc.com>
Description: This entry shows the maximum number of luns that can support
WriteBooster.
What: /sys/bus/platform/drivers/ufshcd/*/geometry_descriptor/wb_sup_red_type
What: /sys/bus/platform/devices/*.ufs/geometry_descriptor/wb_sup_red_type
Date: June 2020
-Contact: Asutosh Das <asutoshd@codeaurora.org>
+Contact: Asutosh Das <quic_asutoshd@quicinc.com>
Description: The supportability of user space reduction mode
and preserve user space mode.
00h: WriteBooster Buffer can be configured only in
What: /sys/bus/platform/drivers/ufshcd/*/geometry_descriptor/wb_sup_wb_type
What: /sys/bus/platform/devices/*.ufs/geometry_descriptor/wb_sup_wb_type
Date: June 2020
-Contact: Asutosh Das <asutoshd@codeaurora.org>
+Contact: Asutosh Das <quic_asutoshd@quicinc.com>
Description: The supportability of WriteBooster Buffer type.
=== ==========================================================
What: /sys/bus/platform/drivers/ufshcd/*/flags/wb_enable
What: /sys/bus/platform/devices/*.ufs/flags/wb_enable
Date: June 2020
-Contact: Asutosh Das <asutoshd@codeaurora.org>
+Contact: Asutosh Das <quic_asutoshd@quicinc.com>
Description: This entry shows the status of WriteBooster.
== ============================
What: /sys/bus/platform/drivers/ufshcd/*/flags/wb_flush_en
What: /sys/bus/platform/devices/*.ufs/flags/wb_flush_en
Date: June 2020
-Contact: Asutosh Das <asutoshd@codeaurora.org>
+Contact: Asutosh Das <quic_asutoshd@quicinc.com>
Description: This entry shows if flush is enabled.
== =================================
What: /sys/bus/platform/drivers/ufshcd/*/flags/wb_flush_during_h8
What: /sys/bus/platform/devices/*.ufs/flags/wb_flush_during_h8
Date: June 2020
-Contact: Asutosh Das <asutoshd@codeaurora.org>
+Contact: Asutosh Das <quic_asutoshd@quicinc.com>
Description: Flush WriteBooster Buffer during hibernate state.
== =================================================
What: /sys/bus/platform/drivers/ufshcd/*/attributes/wb_avail_buf
What: /sys/bus/platform/devices/*.ufs/attributes/wb_avail_buf
Date: June 2020
-Contact: Asutosh Das <asutoshd@codeaurora.org>
+Contact: Asutosh Das <quic_asutoshd@quicinc.com>
Description: This entry shows the amount of unused WriteBooster buffer
available.
What: /sys/bus/platform/drivers/ufshcd/*/attributes/wb_cur_buf
What: /sys/bus/platform/devices/*.ufs/attributes/wb_cur_buf
Date: June 2020
-Contact: Asutosh Das <asutoshd@codeaurora.org>
+Contact: Asutosh Das <quic_asutoshd@quicinc.com>
Description: This entry shows the amount of unused current buffer.
The file is read only.
What: /sys/bus/platform/drivers/ufshcd/*/attributes/wb_flush_status
What: /sys/bus/platform/devices/*.ufs/attributes/wb_flush_status
Date: June 2020
-Contact: Asutosh Das <asutoshd@codeaurora.org>
+Contact: Asutosh Das <quic_asutoshd@quicinc.com>
Description: This entry shows the flush operation status.
What: /sys/bus/platform/drivers/ufshcd/*/attributes/wb_life_time_est
What: /sys/bus/platform/devices/*.ufs/attributes/wb_life_time_est
Date: June 2020
-Contact: Asutosh Das <asutoshd@codeaurora.org>
+Contact: Asutosh Das <quic_asutoshd@quicinc.com>
Description: This entry shows an indication of the WriteBooster Buffer
lifetime based on the amount of performed program/erase cycles
What: /sys/class/scsi_device/*/device/unit_descriptor/wb_buf_alloc_units
Date: June 2020
-Contact: Asutosh Das <asutoshd@codeaurora.org>
+Contact: Asutosh Das <quic_asutoshd@quicinc.com>
Description: This entry shows the configured size of WriteBooster buffer.
0400h corresponds to 4GB.