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532d7f6bc4
Introduce ras counters interface for counting QAT specific device errors and expose them through the newly created qat_ras sysfs group attribute. This adds the following attributes: - errors_correctable: number of correctable errors - errors_nonfatal: number of uncorrectable non fatal errors - errors_fatal: number of uncorrectable fatal errors - reset_error_counters: resets all counters These counters are initialized during device bring up and cleared during device shutdown and are applicable only to QAT GEN4 devices. Signed-off-by: Shashank Gupta <shashank.gupta@intel.com> Reviewed-by: Giovanni Cabiddu <giovanni.cabiddu@intel.com> Reviewed-by: Tero Kristo <tero.kristo@linux.intel.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
42 lines
1.3 KiB
Plaintext
42 lines
1.3 KiB
Plaintext
What: /sys/bus/pci/devices/<BDF>/qat_ras/errors_correctable
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Date: January 2024
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KernelVersion: 6.7
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Contact: qat-linux@intel.com
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Description: (RO) Reports the number of correctable errors detected by the device.
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This attribute is only available for qat_4xxx devices.
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What: /sys/bus/pci/devices/<BDF>/qat_ras/errors_nonfatal
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Date: January 2024
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KernelVersion: 6.7
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Contact: qat-linux@intel.com
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Description: (RO) Reports the number of non fatal errors detected by the device.
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This attribute is only available for qat_4xxx devices.
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What: /sys/bus/pci/devices/<BDF>/qat_ras/errors_fatal
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Date: January 2024
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KernelVersion: 6.7
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Contact: qat-linux@intel.com
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Description: (RO) Reports the number of fatal errors detected by the device.
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This attribute is only available for qat_4xxx devices.
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What: /sys/bus/pci/devices/<BDF>/qat_ras/reset_error_counters
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Date: January 2024
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KernelVersion: 6.7
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Contact: qat-linux@intel.com
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Description: (WO) Write to resets all error counters of a device.
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The following example reports how to reset the counters::
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# echo 1 > /sys/bus/pci/devices/<BDF>/qat_ras/reset_error_counters
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# cat /sys/bus/pci/devices/<BDF>/qat_ras/errors_correctable
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0
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# cat /sys/bus/pci/devices/<BDF>/qat_ras/errors_nonfatal
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0
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# cat /sys/bus/pci/devices/<BDF>/qat_ras/errors_fatal
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0
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This attribute is only available for qat_4xxx devices.
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