[dpdk-dev] [PATCH] virtio: fix rx ring descriptor starvation

[Yuanhan Liu]

On Tue, Nov 24, 2015 at 10:20:22PM +0100, Thomas Monjalon wrote:
> Any review, please?

Huawei, would you review it? Sorry that I've not read too much
code about virtio PMD driver yet.

	--yliu


> 2015-11-13 09:30, Tom Kiely:
> > If all rx descriptors are processed while transient
> > mbuf exhaustion is present, the rx ring ends up with
> > no available descriptors. Thus no packets are received
> > on that ring. Since descriptor refill is performed post
> > rx descriptor processing, in this case no refill is
> > ever subsequently performed resulting in permanent rx
> > traffic drop.
> > 
> > Signed-off-by: Tom Kiely <tkiely at brocade.com>