From: "Xie, Huawei" <huawei.xie@intel.com>
To: Yuanhan Liu <yuanhan.liu@linux.intel.com>,
Thomas Monjalon <thomas.monjalon@6wind.com>
Cc: "dev@dpdk.org" <dev@dpdk.org>
Subject: Re: [dpdk-dev] [PATCH] virtio: fix rx ring descriptor starvation
Date: Wed, 25 Nov 2015 02:51:42 +0000 [thread overview]
Message-ID: <C37D651A908B024F974696C65296B57B4B1AE929@SHSMSX101.ccr.corp.intel.com> (raw)
In-Reply-To: <20151125015001.GL2325@yliu-dev.sh.intel.com>
On 11/25/2015 9:47 AM, Yuanhan Liu wrote:
> 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.
Np. will do it by end of this week.
>
> --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 2:51 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
2015-11-25 2:51 ` Xie, Huawei [this message]
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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