From mboxrd@z Thu Jan 1 00:00:00 1970 From: "Michael S. Tsirkin" Subject: Re: [Question]About KVM network zero-copy feature! Date: Sun, 12 Aug 2012 12:37:31 +0300 Message-ID: <20120812093730.GD1421@redhat.com> References: <50248148.4070204@huawei.com> <20120811135556.58ddf48d@nehalam.linuxnetplumber.net> <5026D49B.10305@tuffmail.com> <5026FC04.6080108@tuffmail.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, "Peter Huang\(Peng\)" , virtualization@lists.linux-foundation.org, avi@redhat.com, Stephen Hemminger To: Robert Vineyard Return-path: Content-Disposition: inline In-Reply-To: <5026FC04.6080108@tuffmail.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 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. > The Release Notes for RHEL 6.2 (originally published on 12/06/2011) > also specifically mention macvtap/vhost zero-copy capabilities as > being included as a Technology Preview: > > http://docs.redhat.com/docs/en-US/Red_Hat_Enterprise_Linux/6/html/6.2_Release_Notes/virtualization.html > > Since I've been unable to find much information on the current > status of this development, can anyone confirm if this functionality > is still in the works? If so, is there any planned ETA? > > Thanks, > Robert Vineyard I think this means TX. -- MST