diff options
| author | Yishai Hadas <yishaih@nvidia.com> | 2023-01-24 16:49:54 +0200 |
|---|---|---|
| committer | Alex Williamson <alex.williamson@redhat.com> | 2023-01-30 12:16:15 -0700 |
| commit | b04e2e86e919633825728007484508dbdc44c7bb (patch) | |
| tree | 4c93d401dad36863e45aa6690f5788ae21f5c7c6 /drivers/vfio/mdev/mdev_core.c | |
| parent | caf094b5a156272708b46f423833392af464b664 (diff) | |
vfio/mlx5: Improve the source side flow upon pre_copy
Improve the source side flow upon pre_copy as of below.
- Prepare the stop_copy buffers as part of moving to pre_copy.
- Send to the target a record that includes the expected
stop_copy size to let it optimize its stop_copy flow as well.
As for sending the target this new record type (i.e.
MLX5_MIGF_HEADER_TAG_STOP_COPY_SIZE) we split the current 64 header
flags bits into 32 flags bits and another 32 tag bits, each record may
have a tag and a flag whether it's optional or mandatory. Optional
records will be ignored in the target.
The above reduces the downtime upon stop_copy as the relevant data stuff
is prepared ahead as part of pre_copy.
Signed-off-by: Yishai Hadas <yishaih@nvidia.com>
Link: https://lore.kernel.org/r/20230124144955.139901-3-yishaih@nvidia.com
Signed-off-by: Alex Williamson <alex.williamson@redhat.com>
Diffstat (limited to 'drivers/vfio/mdev/mdev_core.c')
0 files changed, 0 insertions, 0 deletions