From mboxrd@z Thu Jan  1 00:00:00 1970
From: Yuanhan Liu <yuanhan.liu@linux.intel.com>
Subject: Re: [PATCH] virtio: fix rx ring descriptor starvation
Date: Wed, 25 Nov 2015 09:50:01 +0800
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 <1980495.CSRm2jjoLQ@xps13>
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To: Thomas Monjalon <thomas.monjalon@6wind.com>, huawei.xie@intel.com
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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@brocade.com>