1What: /sys/kernel/debug/qat_<device>_<BDF>/fw_counters 2Date: November 2023 3KernelVersion: 6.6 4Contact: qat-linux@intel.com 5Description: (RO) Read returns the number of requests sent to the FW and the number of responses 6 received from the FW for each Acceleration Engine 7 Reported firmware counters:: 8 9 <N>: Number of requests sent from Acceleration Engine N to FW and responses 10 Acceleration Engine N received from FW 11 12What: /sys/kernel/debug/qat_<device>_<BDF>/heartbeat/config 13Date: November 2023 14KernelVersion: 6.6 15Contact: qat-linux@intel.com 16Description: (RW) Read returns value of the Heartbeat update period. 17 Write to the file changes this period value. 18 19 This period should reflect planned polling interval of device 20 health status. High frequency Heartbeat monitoring wastes CPU cycles 21 but minimizes the customer’s system downtime. Also, if there are 22 large service requests that take some time to complete, high frequency 23 Heartbeat monitoring could result in false reports of unresponsiveness 24 and in those cases, period needs to be increased. 25 26 This parameter is effective only for c3xxx, c62x, dh895xcc devices. 27 4xxx has this value internally fixed to 200ms. 28 29 Default value is set to 500. Minimal allowed value is 200. 30 All values are expressed in milliseconds. 31 32What: /sys/kernel/debug/qat_<device>_<BDF>/heartbeat/queries_failed 33Date: November 2023 34KernelVersion: 6.6 35Contact: qat-linux@intel.com 36Description: (RO) Read returns the number of times the device became unresponsive. 37 38 Attribute returns value of the counter which is incremented when 39 status query results negative. 40 41What: /sys/kernel/debug/qat_<device>_<BDF>/heartbeat/queries_sent 42Date: November 2023 43KernelVersion: 6.6 44Contact: qat-linux@intel.com 45Description: (RO) Read returns the number of times the control process checked 46 if the device is responsive. 47 48 Attribute returns value of the counter which is incremented on 49 every status query. 50 51What: /sys/kernel/debug/qat_<device>_<BDF>/heartbeat/status 52Date: November 2023 53KernelVersion: 6.6 54Contact: qat-linux@intel.com 55Description: (RO) Read returns the device health status. 56 57 Returns 0 when device is healthy or -1 when is unresponsive 58 or the query failed to send. 59 60 The driver does not monitor for Heartbeat. It is left for a user 61 to poll the status periodically. 62 63What: /sys/kernel/debug/qat_<device>_<BDF>/pm_status 64Date: January 2024 65KernelVersion: 6.7 66Contact: qat-linux@intel.com 67Description: (RO) Read returns power management information specific to the 68 QAT device. 69 70 This attribute is only available for qat_4xxx devices. 71 72What: /sys/kernel/debug/qat_<device>_<BDF>/cnv_errors 73Date: January 2024 74KernelVersion: 6.7 75Contact: qat-linux@intel.com 76Description: (RO) Read returns, for each Acceleration Engine (AE), the number 77 of errors and the type of the last error detected by the device 78 when performing verified compression. 79 Reported counters:: 80 81 <N>: Number of Compress and Verify (CnV) errors and type 82 of the last CnV error detected by Acceleration 83 Engine N. 84