Re: [kvm-devel] [PATCH] Fix e1000 can_receive handler

[Avi K. <av...@qu...>]

Avi Kivity wrote:
>
> Note that flow control still makes sense since it allows us to buffer 
> some packets if the guest is scheduled out.  But we can't use it as 
> the primary mechanism since it won't exist with multiqueue NICs (where 
> the virtio descriptors are fed to driver).
>

... are fed to the hardware, I meant.

And to clarify further, I do think the patch is correct, but that virtio 
should be able to work well without it under ordinary circumstances.


-- 
Do not meddle in the internals of kernels, for they are subtle and quick to panic.