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crypto: qat - enable reporting of error counters for GEN6 devices

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Enable the reporting of error counters through sysfs for QAT GEN6
devices and update the ABI documentation.

This enables the reporting of the following:
   - errors_correctable - hardware correctable errors that allow the
     system to recover without data loss.
   - errors_nonfatal: errors that can be isolated to specific in-flight
     requests.
   - errors_fatal: errors that cannot be contained to a request,
     requiring a Function Level Reset (FLR) upon occurrence.

Signed-off-by: Suman Kumar Chakraborty <suman.kumar.chakraborty@intel.com>
Reviewed-by: Giovanni Cabiddu <giovanni.cabiddu@intel.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
This commit is contained in:
Suman Kumar Chakraborty 2025-05-13 11:25:27 +01:00 committed by Herbert Xu
parent 7f3401d0a5
commit 662c62bb83
2 changed files with 6 additions and 4 deletions
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8
Documentation/ABI/testing/sysfs-driver-qat_ras
View File

@ -4,7 +4,7 @@ KernelVersion: 6.7
Contact: qat-linux@intel.com
Description: (RO) Reports the number of correctable errors detected by the device.
This attribute is only available for qat_4xxx devices.
This attribute is only available for qat_4xxx and qat_6xxx devices.
What: /sys/bus/pci/devices/<BDF>/qat_ras/errors_nonfatal
Date: January 2024
@ -12,7 +12,7 @@ KernelVersion: 6.7
Contact: qat-linux@intel.com
Description: (RO) Reports the number of non fatal errors detected by the device.
This attribute is only available for qat_4xxx devices.
This attribute is only available for qat_4xxx and qat_6xxx devices.
What: /sys/bus/pci/devices/<BDF>/qat_ras/errors_fatal
Date: January 2024
@ -20,7 +20,7 @@ KernelVersion: 6.7
Contact: qat-linux@intel.com
Description: (RO) Reports the number of fatal errors detected by the device.
This attribute is only available for qat_4xxx devices.
This attribute is only available for qat_4xxx and qat_6xxx devices.
What: /sys/bus/pci/devices/<BDF>/qat_ras/reset_error_counters
Date: January 2024
@ -38,4 +38,4 @@ Description: (WO) Write to resets all error counters of a device.
# cat /sys/bus/pci/devices/<BDF>/qat_ras/errors_fatal
0
This attribute is only available for qat_4xxx devices.
This attribute is only available for qat_4xxx and qat_6xxx devices.

2
drivers/crypto/intel/qat/qat_6xxx/adf_drv.c
View File

@ -173,6 +173,8 @@ static int adf_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
if (ret)
return dev_err_probe(dev, ret, "Failed to save pci state.\n");
accel_dev->ras_errors.enabled = true;
adf_dbgfs_init(accel_dev);
ret = devm_add_action_or_reset(dev, adf_dbgfs_cleanup, accel_dev);