From mboxrd@z Thu Jan 1 00:00:00 1970 From: Yuanhan Liu Subject: Re: [PATCH] vhost: support Explicit Congestion Notification Date: Thu, 11 Jan 2018 22:27:35 +0800 Message-ID: <20180111142735.GT29540@yliu-mob> References: <1511320782-72744-1-git-send-email-jiayu.hu@intel.com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Cc: dev@dpdk.org, jianfeng.tan@intel.com To: Jiayu Hu Return-path: Received: from out3-smtp.messagingengine.com (out3-smtp.messagingengine.com [66.111.4.27]) by dpdk.org (Postfix) with ESMTP id 73C7C1E35 for ; Thu, 11 Jan 2018 15:27:45 +0100 (CET) Content-Disposition: inline In-Reply-To: <1511320782-72744-1-git-send-email-jiayu.hu@intel.com> List-Id: DPDK patches and discussions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dev-bounces@dpdk.org Sender: "dev" On Wed, Nov 22, 2017 at 11:19:42AM +0800, Jiayu Hu wrote: > In virtio, Explicit Congestion Notification (ECN) includes two parts: > guest ECN and host ECN. Guest ECN means the frontend can handle TSO > packets which have ECN set, and host ECN means the backend can handle > TSO packets which have ECN set. > > The ECN features are rarely used. However, virtio-net enables them by > default, and vhost-net support both. To make live migration from > vhost-net to vhost-user possible, this patch announces to support > guest and host ECN in vhost-user. > > Signed-off-by: Jiayu Hu Applied to dpdk-next-virtio. Thanks. --yliu