From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from dpdk.org (dpdk.org [92.243.14.124]) by inbox.dpdk.org (Postfix) with ESMTP id 6EC83A0350; Sun, 28 Jun 2020 08:41:35 +0200 (CEST) Received: from [92.243.14.124] (localhost [127.0.0.1]) by dpdk.org (Postfix) with ESMTP id 46DF71C10A; Sun, 28 Jun 2020 08:41:35 +0200 (CEST) Received: from us-smtp-1.mimecast.com (us-smtp-delivery-1.mimecast.com [205.139.110.120]) by dpdk.org (Postfix) with ESMTP id B52B51C036 for ; Sun, 28 Jun 2020 08:41:33 +0200 (CEST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1593326493; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=XR1iftAOhM5mp6AZgibGcsQ707kGYIYuxLT56lFDuJc=; b=GmX/txsm+udixXCTVmkQom4pkiGCVX4SrBWo/elV94Qy1Ddcp7YULZH7RGNKRUZt/AbfwW UbMK/aLlc+7sJXKl0I7sdirrJg1fhTCOdC5nqOsBtR4lQJW1iZSx+W8g9YikE8a9sSkAuU HbWoqX9C0BsGJfNEiZPpbegrABlS39g= Received: from mimecast-mx01.redhat.com (mimecast-mx01.redhat.com [209.132.183.4]) (Using TLS) by relay.mimecast.com with ESMTP id us-mta-430-d_-LP0m0MfS4IEymv7xu2w-1; Sun, 28 Jun 2020 02:41:29 -0400 X-MC-Unique: d_-LP0m0MfS4IEymv7xu2w-1 Received: from smtp.corp.redhat.com (int-mx02.intmail.prod.int.phx2.redhat.com [10.5.11.12]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mimecast-mx01.redhat.com (Postfix) with ESMTPS id AE70F18FE860; Sun, 28 Jun 2020 06:41:28 +0000 (UTC) Received: from [10.72.13.164] (ovpn-13-164.pek2.redhat.com [10.72.13.164]) by smtp.corp.redhat.com (Postfix) with ESMTP id B85AD60BE2; Sun, 28 Jun 2020 06:41:17 +0000 (UTC) To: Vincent Li , dev@dpdk.org Cc: Maxime Coquelin , Zhihong Wang , Xiaolong Ye References: From: Jason Wang Message-ID: <1a367938-b139-ac67-47ec-5600f1b5344f@redhat.com> Date: Sun, 28 Jun 2020 14:41:04 +0800 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:68.0) Gecko/20100101 Thunderbird/68.8.0 MIME-Version: 1.0 In-Reply-To: Content-Language: en-US X-Scanned-By: MIMEDefang 2.79 on 10.5.11.12 X-Mimecast-Spam-Score: 0 X-Mimecast-Originator: redhat.com Content-Type: text/plain; charset=utf-8; format=flowed Content-Transfer-Encoding: 8bit Subject: Re: [dpdk-dev] DPDK Virtio PMD RX RSS support? X-BeenThere: dev@dpdk.org X-Mailman-Version: 2.1.15 Precedence: list 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 2020/6/26 上午5:27, Vincent Li wrote: > Hi, > > I found Qemu start to support virtio-net RX RSS: > > List: qemu-devel > Subject: [PULL V2 02/33] virtio-net: implement RX RSS processing > From: Jason Wang > Date: 2020-06-18 13:21:17 > Message-ID: 1592486508-6135-3-git-send-email-jasowang () redhat ! com > [Download RAW message or body] > > From: Yuri Benditovich > > If VIRTIO_NET_F_RSS negotiated and RSS is enabled, process > incoming packets, calculate packet's hash and place the > packet into respective RX virtqueue. > > Signed-off-by: Yuri Benditovich > Signed-off-by: Jason Wang > --- > hw/net/Makefile.objs | 1 + > hw/net/virtio-net.c | 88 > +++++++++++++++++++++++++++++++++++++++++- > include/hw/virtio/virtio-net.h | 1 + > 3 files changed, 88 insertions(+), 2 deletions(-) > > If I understand it correct, in order for DPDK to support Virtio-net RX RSS > in Qemu/KVM guest, the DPDK Virtio PMD also needs to support RX RSS, is > that right? if so, any plan to enhance Virtio PMD to support RX RSS ? I think we did. But I think we need first implement RSS in the vhost lib. (RSS is only supported in the qemu userspace datapath which is slow). Thanks > > Regards, > > Vincent > >