diff options
Diffstat (limited to 'Documentation/ABI/testing/sysfs-driver-ufs')
| -rw-r--r-- | Documentation/ABI/testing/sysfs-driver-ufs | 126 |
1 files changed, 126 insertions, 0 deletions
diff --git a/Documentation/ABI/testing/sysfs-driver-ufs b/Documentation/ABI/testing/sysfs-driver-ufs index eaac6898f0c0..b4a5d55fa19f 100644 --- a/Documentation/ABI/testing/sysfs-driver-ufs +++ b/Documentation/ABI/testing/sysfs-driver-ufs @@ -995,6 +995,132 @@ Description: This entry shows the target state of an UFS UIC link The file is read only. +What: /sys/bus/platform/drivers/ufshcd/*/monitor/monitor_enable +Date: January 2021 +Contact: Can Guo <cang@codeaurora.org> +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 +Date: January 2021 +Contact: Can Guo <cang@codeaurora.org> +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 +Date: January 2021 +Contact: Can Guo <cang@codeaurora.org> +Description: This file shows how many sectors (in 512 Bytes) have been + sent from device to host after monitor gets started. + + The file is read only. + +What: /sys/bus/platform/drivers/ufshcd/*/monitor/read_total_busy +Date: January 2021 +Contact: Can Guo <cang@codeaurora.org> +Description: This file shows how long (in micro seconds) has been spent + sending data from device to host after monitor gets started. + + The file is read only. + +What: /sys/bus/platform/drivers/ufshcd/*/monitor/read_nr_requests +Date: January 2021 +Contact: Can Guo <cang@codeaurora.org> +Description: This file shows how many read requests have been sent after + monitor gets started. + + The file is read only. + +What: /sys/bus/platform/drivers/ufshcd/*/monitor/read_req_latency_max +Date: January 2021 +Contact: Can Guo <cang@codeaurora.org> +Description: This file shows the maximum latency (in micro seconds) of + read requests after monitor gets started. + + The file is read only. + +What: /sys/bus/platform/drivers/ufshcd/*/monitor/read_req_latency_min +Date: January 2021 +Contact: Can Guo <cang@codeaurora.org> +Description: This file shows the minimum latency (in micro seconds) of + read requests after monitor gets started. + + The file is read only. + +What: /sys/bus/platform/drivers/ufshcd/*/monitor/read_req_latency_avg +Date: January 2021 +Contact: Can Guo <cang@codeaurora.org> +Description: This file shows the average latency (in micro seconds) of + read requests after monitor gets started. + + The file is read only. + +What: /sys/bus/platform/drivers/ufshcd/*/monitor/read_req_latency_sum +Date: January 2021 +Contact: Can Guo <cang@codeaurora.org> +Description: This file shows the total latency (in micro seconds) of + read requests sent after monitor gets started. + + The file is read only. + +What: /sys/bus/platform/drivers/ufshcd/*/monitor/write_total_sectors +Date: January 2021 +Contact: Can Guo <cang@codeaurora.org> +Description: This file shows how many sectors (in 512 Bytes) have been sent + from host to device after monitor gets started. + + The file is read only. + +What: /sys/bus/platform/drivers/ufshcd/*/monitor/write_total_busy +Date: January 2021 +Contact: Can Guo <cang@codeaurora.org> +Description: This file shows how long (in micro seconds) has been spent + sending data from host to device after monitor gets started. + + The file is read only. + +What: /sys/bus/platform/drivers/ufshcd/*/monitor/write_nr_requests +Date: January 2021 +Contact: Can Guo <cang@codeaurora.org> +Description: This file shows how many write requests have been sent after + monitor gets started. + + The file is read only. + +What: /sys/bus/platform/drivers/ufshcd/*/monitor/write_req_latency_max +Date: January 2021 +Contact: Can Guo <cang@codeaurora.org> +Description: This file shows the maximum latency (in micro seconds) of write + requests after monitor gets started. + + The file is read only. + +What: /sys/bus/platform/drivers/ufshcd/*/monitor/write_req_latency_min +Date: January 2021 +Contact: Can Guo <cang@codeaurora.org> +Description: This file shows the minimum latency (in micro seconds) of write + requests after monitor gets started. + + The file is read only. + +What: /sys/bus/platform/drivers/ufshcd/*/monitor/write_req_latency_avg +Date: January 2021 +Contact: Can Guo <cang@codeaurora.org> +Description: This file shows the average latency (in micro seconds) of write + requests after monitor gets started. + + The file is read only. + +What: /sys/bus/platform/drivers/ufshcd/*/monitor/write_req_latency_sum +Date: January 2021 +Contact: Can Guo <cang@codeaurora.org> +Description: This file shows the total latency (in micro seconds) of write + requests after monitor gets started. + + The file is read only. + What: /sys/bus/platform/drivers/ufshcd/*/device_descriptor/wb_presv_us_en Date: June 2020 Contact: Asutosh Das <asutoshd@codeaurora.org> |