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[V1,vfio,0/2] Migration few enhancements

Message ID 20220626083958.54175-1-yishaih@nvidia.com (mailing list archive)
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Series Migration few enhancements | expand

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Yishai Hadas June 26, 2022, 8:39 a.m. UTC 
This series includes few enhancements in the migration area and some
fixes in mlx5 driver as of below.

It splits migration ops from the main device ops, this enables a driver
to safely set its migration's ops only when migration is supported and
leave the other code around (e.g., core, driver) clean.

Registering different structs based on the device capabilities might
start to hit combinatorial explosion when we'll introduce ops for dirty
logging that may be optional too.

As part of that, adapt mlx5 to this scheme and fix some issues around
its migration capable usage.

V1:
- Add a comment about the required usage of 'mig_ops' as was suggested
  by Alex.
- Add Kevin's Reviewed-by tag.

V0:
https://lore.kernel.org/all/20220616170118.497620ba.alex.williamson@redhat.com/T/

Yishai

Yishai Hadas (2):
  vfio/mlx5: Protect mlx5vf_disable_fds() upon close device
  vfio: Split migration ops from main device ops

 .../vfio/pci/hisilicon/hisi_acc_vfio_pci.c    | 11 +++++--
 drivers/vfio/pci/mlx5/cmd.c                   | 14 ++++++++-
 drivers/vfio/pci/mlx5/cmd.h                   |  4 ++-
 drivers/vfio/pci/mlx5/main.c                  | 11 ++++---
 drivers/vfio/vfio.c                           | 13 ++++----
 include/linux/vfio.h                          | 30 ++++++++++++-------
 6 files changed, 58 insertions(+), 25 deletions(-)