From mboxrd@z Thu Jan 1 00:00:00 1970 From: "Tan, Jianfeng" Subject: Re: [PATCH v3 7/9] net/virtio: Add MTU feature support Date: Wed, 5 Apr 2017 12:52:30 +0800 Message-ID: <0e5df10f-c61f-b1cd-a604-148379485ef2@intel.com> References: <20170213142820.8964-1-maxime.coquelin@redhat.com> <20170312163406.17714-1-maxime.coquelin@redhat.com> <20170312163406.17714-8-maxime.coquelin@redhat.com> Mime-Version: 1.0 Content-Type: text/plain; charset=windows-1252; format=flowed Content-Transfer-Encoding: 7bit To: Maxime Coquelin , aconole@redhat.com, sodey@sonusnet.com, yuanhan.liu@linux.intel.com, thomas.monjalon@6wind.com, dev@dpdk.org Return-path: Received: from mga01.intel.com (mga01.intel.com [192.55.52.88]) by dpdk.org (Postfix) with ESMTP id DB00F2A6C for ; Wed, 5 Apr 2017 06:52:33 +0200 (CEST) In-Reply-To: <20170312163406.17714-8-maxime.coquelin@redhat.com> Content-Language: en-US List-Id: DPDK patches and discussions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dev-bounces@dpdk.org Sender: "dev" Hi Maxime, Have some confusion about this feature. Please help confirm. (1) With this feature, we only support to advertise MTU value which is defined by QEMU to frontend and backend driver separately. (2) But it does not allow frontend driver to set a different MTU to QEMU and then to vhost backend. Correct? If it's correct, why not MTU works like (2)? Thanks, Jianfeng