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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: [dpdk-dev] [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>

  reply	other threads:[~2015-11-25  1:47 UTC|newest]

Thread overview: 18+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2015-11-13  9:30 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
     [not found]   ` <C37D651A908B024F974696C65296B57B4C545F75@SHSMSX101.ccr.corp.intel.com>
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
2016-02-26 18:58 Kyle Larose

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