Re: [PATCH v3 00/10] Xe3P GPU Error Injection Test Suite with DRM RAS Netlink Support

[Harish Chegondi <harish.chegondi@intel.com>]

On Mon, Aug 24, 2026 at 10:11:23PM +0530, Ravi Kishore Koppuravuri wrote:
Hi Ravi,

Are there any new changes in V3 or just a rebase?

Thanks
Harish.

> This series introduces comprehensive error injection testing capabilities
> for Intel Xe3P GPUs, leveraging the DRM RAS (Reliability, Availability,
> Serviceability) Generic Netlink interface for error reporting and event
> notification.
> 
> The patch series focuses on the below key areas:
> 
> 1. DRM RAS Netlink Library
> Establishes the foundation by introducing a reusable DRM RAS netlink library that
> provides kernel interface abstraction for error management:
> 
> - DRM RAS Generic Netlink interface initialization and socket management
> - Error counter querying for per-node error tracking
> - Error threshold configuration (get/set operations)
> - Event notification subscription via multicast groups
> 
> 2. Uncorrectable Error Verification
> Implements GT Uncorrectable Unicast Walker Command Parity Error Injection:
> 
> - MMIO-based error injection mechanism
> - AER (Advanced Error Reporting) recovery verification
> - Validates Xe driver error handling and recovery flows
> - Includes workload execution post-recovery for robustness testing
> 
> 3. Correctable Error Verification
> Adds support for L2 Bank Correctable Error Injection with threshold monitoring:
> 
> - Event notification framework for real-time error event monitoring
> - Single and multi-iteration correctable error injection tests
> - Error threshold validation (critical for detecting error saturation)
> 
> IGT Test Coverage includes:
> 
> - GT Uncorrectable Unicast Walker Command Parity Error
> - L2 Bank Correctable Error (single injection)
> - L2 Bank Correctable Error with threshold=1
> - L2 Bank Correctable Error (16x injections)
> 
> Ravi Kishore Koppuravuri (10):
>   drm-uapi/drm_ras: Add DRM RAS UAPI header
>   lib/meson: Add libnl dependencies for DRM RAS support
>   lib/igt_drm_netlink: Introduce DRM RAS Netlink interface library
>   lib/igt_drm_netlink: add get_error_counter support
>   lib/igt_drm_netlink: add get_error_threshold command support
>   lib/igt_drm_netlink: add set_error_threshold command support
>   tests/intel/xe_err_injection: Add GT UC Unicast GAM Walker Command
>     Parity Error Injection
>   lib/igt_drm_netlink: add event notify subscription and event wait
>     support
>   tests/intel/xe_err_injection: Add tests for L2 bank Corr err threshold
>     scenarios
>   tests/intel/xe_err_injection: add CRI GPU requirement check
> 
>  include/drm-uapi/drm_ras.h     |  67 ++++
>  lib/igt_drm_netlink.c          | 565 ++++++++++++++++++++++++++++++
>  lib/igt_drm_netlink.h          |  48 +++
>  lib/meson.build                |   9 +
>  tests/intel/xe_err_injection.c | 623 +++++++++++++++++++++++++++++++++
>  tests/intel/xe_err_injection.h |  28 ++
>  tests/meson.build              |   1 +
>  7 files changed, 1341 insertions(+)
>  create mode 100644 include/drm-uapi/drm_ras.h
>  create mode 100644 lib/igt_drm_netlink.c
>  create mode 100644 lib/igt_drm_netlink.h
>  create mode 100644 tests/intel/xe_err_injection.c
>  create mode 100644 tests/intel/xe_err_injection.h
> 
> -- 
> 2.34.1
>