[PATCH 0/5] PF: Add functions to save and restore VF configuration blob

[Michał Winiarski]

On Thu, Sep 19, 2024 at 07:15:23PM GMT, Michal Wajdeczko wrote:
> We already have support to save and restore GuC VF state, but that
> will only work when the target VF configuration (provisioning) will
> be exactly the same as the source VF configuration. To help with
> assuring that both configurations match, allow to encode whole VF
> configuration that can be saved as blob and restored later.
> 
> In the future we may want to use such captured configuration blobs
> as templates to make sure we provision VFs with exactly the same
> configuration that was previously tested or recommended, or when
> debugfs knobs are not be available.

If we end up using this for that purpose - we will need to turn the
ordering of fields in the blob into an ABI (or at least version it).

For the series:
Reviewed-by: Michał Winiarski <michal.winiarski at intel.com>

-Michał

> 
> Michal Wajdeczko (5):
>   drm/xe/guc: Add yet another helper macro for threshold
>   drm/xe/pf: Update success code of pf_validate_vf_config()
>   drm/xe/pf: Allow to encode subset of VF configuration KLVs
>   drm/xe/pf: Add functions to save and restore VF configuration blob
>   drm/xe/pf: Allow to save and restore VF config blob from debugfs
> 
>  drivers/gpu/drm/xe/xe_gt_sriov_pf_config.c    | 204 ++++++++++++++++--
>  drivers/gpu/drm/xe/xe_gt_sriov_pf_config.h    |   4 +
>  drivers/gpu/drm/xe/xe_gt_sriov_pf_debugfs.c   |  78 +++++++
>  .../gpu/drm/xe/xe_guc_klv_thresholds_set.h    |   7 +
>  4 files changed, 279 insertions(+), 14 deletions(-)
> 
> -- 
> 2.43.0
>