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SubjectRe: [RESEND PATCH net-next] virtio-net: switch to use XPS to choose txq
From: Jason Wang <>
Date: Tue, 5 Nov 2013 18:19:45 +0800

> We used to use a percpu structure vq_index to record the cpu to queue
> mapping, this is suboptimal since it duplicates the work of XPS and
> loses all other XPS functionality such as allowing user to configure
> their own transmission steering strategy.
> So this patch switches to use XPS and suggest a default mapping when
> the number of cpus is equal to the number of queues. With XPS support,
> there's no need for keeping per-cpu vq_index and .ndo_select_queue(),
> so they were removed also.
> Cc: Rusty Russell <>
> Cc: Michael S. Tsirkin <>
> Acked-by: Rusty Russell <>
> Acked-by: Michael S. Tsirkin <>
> Signed-off-by: Jason Wang <>
> ---
> Resend since the previous complie warning disappears after commit
> 3573540cafa4296dd60f8be02f2aecaa31047525
> (netif_set_xps_queue: make cpu mask const).

Yep, looks great, applied. Thanks Jason!

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