vfio/mlx5: Run the SAVE state command in an async mode

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Use the PF asynchronous command mode for the SAVE state command.

This enables returning earlier to user space upon issuing successfully
the command and improve latency by let things run in parallel.

Link: https://lore.kernel.org/r/20220510090206.90374-5-yishaih@nvidia.com
Signed-off-by: Yishai Hadas <yishaih@nvidia.com>
Reviewed-by: Alex Williamson <alex.williamson@redhat.com>
Signed-off-by: Leon Romanovsky <leonro@nvidia.com>

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Yishai Hadas 2022-05-10 12:02:06 +03:00 • committed by Leon Romanovsky

parent 8580ad14f9

commit 85c205db60

3 changed files with 131 additions and 9 deletions

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81

drivers/vfio/pci/mlx5/cmd.c

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19

drivers/vfio/pci/mlx5/cmd.h

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40

drivers/vfio/pci/mlx5/main.c

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