On Wed, 11 May 2022 09:40:37 +0300 Leon Romanovsky <leon@xxxxxxxxxx> wrote: > On Tue, May 10, 2022 at 09:00:53AM -0600, Alex Williamson wrote: > > On Tue, 10 May 2022 16:16:16 +0300 > > Leon Romanovsky <leon@xxxxxxxxxx> wrote: > > > > > On Tue, May 10, 2022 at 12:02:02PM +0300, Yishai Hadas wrote: > > > > This series improves mlx5 live migration driver in few aspects as of > > > > below. > > > > > > > > Refactor to enable running migration commands in parallel over the PF > > > > command interface. > > > > > > > > To achieve that we exposed from mlx5_core an API to let the VF be > > > > notified before that the PF command interface goes down/up. (e.g. PF > > > > reload upon health recovery). > > > > > > > > Once having the above functionality in place mlx5 vfio doesn't need any > > > > more to obtain the global PF lock upon using the command interface but > > > > can rely on the above mechanism to be in sync with the PF. > > > > > > > > This can enable parallel VFs migration over the PF command interface > > > > from kernel driver point of view. > > > > > > > > In addition, > > > > Moved to use the PF async 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. > > > > > > > > Alex, as this series touches mlx5_core we may need to send this in a > > > > pull request format to VFIO to avoid conflicts before acceptance. > > > > > > The PR was sent. > > > https://lore.kernel.org/netdev/20220510131236.1039430-1-leon@xxxxxxxxxx/T/#u > > > > For patches 2-4, please add: > > > > Reviewed-by: Alex Williamson <alex.williamson@xxxxxxxxxx> > > Done, I force pushed same branch and tag, so previous PR is still valid > to be pulled. > https://lore.kernel.org/kvm/20220510131236.1039430-1-leon@xxxxxxxxxx/T/#u Merged to vfio next branch for v5.19. Thanks, Alex
