vfio/mlx5: Introduce multiple loads

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In order to support PRE_COPY, mlx5 driver transfers multiple states
(images) of the device. e.g.: the source VF can save and transfer
multiple states, and the target VF will load them by that order.

This patch implements the changes for the target VF to decompose the
header for each state and to write and load multiple states.

Reviewed-by: Jason Gunthorpe <jgg@nvidia.com>
Signed-off-by: Yishai Hadas <yishaih@nvidia.com>
Link: https://lore.kernel.org/r/20221206083438.37807-13-yishaih@nvidia.com
Signed-off-by: Alex Williamson <alex.williamson@redhat.com>

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Yishai Hadas 2022-12-06 10:34:36 +02:00 • committed by Alex Williamson

parent 81156c2727

commit 34e2f27143

3 changed files with 257 additions and 45 deletions

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13

drivers/vfio/pci/mlx5/cmd.c

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10

drivers/vfio/pci/mlx5/cmd.h

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287

drivers/vfio/pci/mlx5/main.c

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