From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([2001:4830:134:3::10]:41727) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1eFGFI-0002Mz-Mw for qemu-devel@nongnu.org; Thu, 16 Nov 2017 04:14:05 -0500 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1eFGFD-0001CV-Pb for qemu-devel@nongnu.org; Thu, 16 Nov 2017 04:14:04 -0500 Received: from mx1.redhat.com ([209.132.183.28]:34266) by eggs.gnu.org with esmtps (TLS1.0:DHE_RSA_AES_256_CBC_SHA1:32) (Exim 4.71) (envelope-from ) id 1eFGFD-00018k-Jh for qemu-devel@nongnu.org; Thu, 16 Nov 2017 04:13:59 -0500 References: <5A0D27D8.6050506@huawei.com> <2e0ddd76-3903-d715-9a86-73f1286322e7@redhat.com> <33183CC9F5247A488A2544077AF19020DA46E2A6@DGGEMA505-MBS.china.huawei.com> From: Jason Wang Message-ID: <6aaaca2b-81ef-a1c1-4745-830d008b3770@redhat.com> Date: Thu, 16 Nov 2017 17:13:37 +0800 MIME-Version: 1.0 In-Reply-To: <33183CC9F5247A488A2544077AF19020DA46E2A6@DGGEMA505-MBS.china.huawei.com> Content-Type: text/plain; charset=utf-8; format=flowed Content-Language: en-US Content-Transfer-Encoding: quoted-printable Subject: Re: [Qemu-devel] [Question] why need to start all queues in vhost_net_start List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: "Gonglei (Arei)" , longpeng , "mst@redhat.com" Cc: "Longpeng(Mike)" , "qemu-devel@nongnu.org" , "Wangjing (King, Euler)" , "Huangweidong (C)" , "stefanha@redhat.com" On 2017=E5=B9=B411=E6=9C=8816=E6=97=A5 17:01, Gonglei (Arei) wrote: > No, Windows guest + vhost-user/DPDK. > > BTW pls see virtio spec in : > > "If VIRTIO_NET_F_MQ is negotiated, each of receiveq1. . .receiveqN that= will be used SHOULD be populated > with receive buffers." > > It is not mandatory that all queues must be initialized. I think not, since it said we should fill receive buffers for each queue=20 which means we should initialize all queues. May Michael can clarify on=20 this. Thanks > > Thanks, > -Gonglei >