From: Yuanhan Liu <yuanhan.liu@linux.intel.com>
To: Thomas Monjalon <thomas.monjalon@6wind.com>, huawei.xie@intel.com
Cc: dev@dpdk.org
Subject: Re: [PATCH] virtio: fix rx ring descriptor starvation
Date: Wed, 25 Nov 2015 09:50:01 +0800 [thread overview]
Message-ID: <20151125015001.GL2325@yliu-dev.sh.intel.com> (raw)
In-Reply-To: <1980495.CSRm2jjoLQ@xps13>
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>
next prev parent reply other threads:[~2015-11-25 1:47 UTC|newest]
Thread overview: 19+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-11-13 9:30 [PATCH] virtio: fix rx ring descriptor starvation Tom Kiely
2015-11-24 21:20 ` Thomas Monjalon
2015-11-25 1:50 ` Yuanhan Liu [this message]
2015-11-25 2:51 ` Xie, Huawei
2015-11-25 17:32 ` Xie, Huawei
2015-12-17 4:47 ` Xie, Huawei
2015-12-17 9:22 ` Tom Kiely
2015-12-17 11:18 ` Tom Kiely
2016-01-05 7:13 ` Xie, Huawei
2016-02-10 15:07 ` Bruce Richardson
2016-02-18 14:03 ` Kyle Larose
2016-02-22 16:23 ` Tom Kiely
2016-02-23 8:26 ` Xie, Huawei
2016-03-04 6:16 ` Xie, Huawei
2016-03-04 8:11 ` Tom Kiely
2016-03-04 13:25 ` Kyle Larose
2016-03-09 21:37 ` Bruce Richardson
2016-03-10 14:46 ` Kyle Larose
-- strict thread matches above, loose matches on Subject: below --
2016-02-26 18:58 Kyle Larose
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