Messages in this thread | | | From | Rusty Russell <> | Subject | Re: [PATCH 2/5] virtio: introduce an API to set affinity for a virtqueue | Date | Thu, 06 Sep 2012 09:02:04 +0930 |
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Paolo Bonzini <pbonzini@redhat.com> writes:
> From: Jason Wang <jasowang@redhat.com> > > Sometimes, virtio device need to configure irq affinity hint to maximize the > performance. Instead of just exposing the irq of a virtqueue, this patch > introduce an API to set the affinity for a virtqueue. > > The api is best-effort, the affinity hint may not be set as expected due to > platform support, irq sharing or irq type. Currently, only pci method were > implemented and we set the affinity according to: > > - if device uses INTX, we just ignore the request > - if device has per vq vector, we force the affinity hint > - if the virtqueues share MSI, make the affinity OR over all affinities > requested > > Signed-off-by: Jason Wang <jasowang@redhat.com> > Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Applied, thanks.
Acked-by: Rusty Russell <rusty@rustcorp.com.au>
Cheers, Rusty.
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