From mboxrd@z Thu Jan 1 00:00:00 1970 From: Shirley Ma Subject: Re: [RFC PATCH 2/2] macvtap: TX zero copy between guest and host kernel Date: Tue, 14 Sep 2010 23:17:08 -0700 Message-ID: <1284531428.24603.251.camel@localhost.localdomain> References: <1284410580.13351.10.camel@localhost.localdomain> <1284410883.13351.14.camel@localhost.localdomain> <20100913.201730.27805132.davem@davemloft.net> <4C8F3C77.7010302@redhat.com> <1284476719.13351.35.camel@localhost.localdomain> <1284518452.13351.111.camel@localhost.localdomain> <20100915052724.GA25481@redhat.com> Mime-Version: 1.0 Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: 7bit Cc: "Xin, Xiaohui" , Avi Kivity , David Miller , "arnd@arndb.de" , "netdev@vger.kernel.org" , "kvm@vger.kernel.org" , "linux-kernel@vger.kernel.org" To: "Michael S. Tsirkin" Return-path: In-Reply-To: <20100915052724.GA25481@redhat.com> Sender: kvm-owner@vger.kernel.org List-Id: netdev.vger.kernel.org On Wed, 2010-09-15 at 07:27 +0200, Michael S. Tsirkin wrote: > For some of the issues, try following the discussion around > net: af_packet: don't call tpacket_destruct_skb() until the skb is > sent > out. > > Summary: it's difficult to do correctly generally. Limiting ourselves > to transmit on specific devices might make it possible. Thanks for the tips. Shirley