On Mon, 5 Feb 2024 14:48:23 +0200 Yishai Hadas <yishaih@xxxxxxxxxx> wrote: > This series improves the mlx5 driver to better handle some error cases > as of below. > > The first two patches let the driver recognize whether the firmware > moved the tracker object to an error state. In that case, the driver > will skip/block any usage of that object. > > The next two patches (#3, #4), improve the driver to better include the > proper firmware syndrome in dmesg upon a failure in some firmware > commands. > > The last patch follows the device specification to let the firmware know > upon leaving PRE_COPY back to RUNNING. (e.g. error in the target, > migration cancellation, etc.). > > This will let the firmware clean its internal resources that were turned > on upon PRE_COPY. > > Note: > As the first patch should go to net/mlx5, we may need to send it as a > pull request format to vfio before acceptance of the series, to avoid > conflicts. > > Changes from V0: https://lore.kernel.org/kvm/20240130170227.153464-1-yishaih@xxxxxxxxxx/ > Patch #2: > - Rename to use 'object changed' in some places to make it clearer. > - Enhance the commit log to better clarify the usage/use case. > > The above was suggested by Tian, Kevin <kevin.tian@xxxxxxxxx>. > > Yishai > > Yishai Hadas (5): > net/mlx5: Add the IFC related bits for query tracker > vfio/mlx5: Add support for tracker object change event > vfio/mlx5: Handle the EREMOTEIO error upon the SAVE command > vfio/mlx5: Block incremental query upon migf state error > vfio/mlx5: Let firmware knows upon leaving PRE_COPY back to RUNNING > > drivers/vfio/pci/mlx5/cmd.c | 74 ++++++++++++++++++++++++++++++++--- > drivers/vfio/pci/mlx5/cmd.h | 5 ++- > drivers/vfio/pci/mlx5/main.c | 39 ++++++++++++++---- > include/linux/mlx5/mlx5_ifc.h | 5 +++ > 4 files changed, 110 insertions(+), 13 deletions(-) > Applied to vfio next branch for v6.9. Thanks, Alex
