From mboxrd@z Thu Jan 1 00:00:00 1970 From: "Michael S. Tsirkin" Subject: Re: [Question]About KVM network zero-copy feature! Date: Mon, 13 Aug 2012 10:18:44 +0300 Message-ID: <20120813071843.GC14081@redhat.com> References: <50248148.4070204@huawei.com> <20120811135556.58ddf48d@nehalam.linuxnetplumber.net> <5026D49B.10305@tuffmail.com> <5026FC04.6080108@tuffmail.com> <20120812093730.GD1421@redhat.com> <50285766.50307@huawei.com> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Cc: xiaohui.xin@intel.com, kvm@vger.kernel.org, netdev@vger.kernel.org, virtualization@lists.linux-foundation.org, avi@redhat.com, Stephen Hemminger To: "Peter Huang(Peng)" Return-path: Content-Disposition: inline In-Reply-To: <50285766.50307@huawei.com> List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: virtualization-bounces@lists.linux-foundation.org Errors-To: virtualization-bounces@lists.linux-foundation.org List-Id: netdev.vger.kernel.org Last patchset version was this: [PATCH v16 00/17] Provide a zero-copy method on KVM virtio-net IIRC the main issue was the need to integrate the patchset with macvtap (as opposed to using a separate device). On Mon, Aug 13, 2012 at 09:24:54AM +0800, Peter Huang(Peng) wrote: > Hi, Michael > > IIt will be usefull if we can implement rx zero-copy, could you give > me some help if you know some technical details or some > references on the internet? > > I am wondering may be I can take a deep look on it first then decide > if I can take it over or not. > > Thanks a lot. > > On 2012/8/12 17:37, Michael S. Tsirkin wrote: > > On Sat, Aug 11, 2012 at 08:42:44PM -0400, Robert Vineyard wrote: > >> (adding Xin Xiaohui to the conversation for comment) > >> > >> According to the NetworkingTodo page on the KVM wiki, zero-copy RX > >> for macvtap is in fact on the roadmap, assigned to Xin: > >> > >> http://www.linux-kvm.org/page/NetworkingTodo > > AFAIK Xin left Intel and is not working on it. > > Contributions are welcome. > >