From mboxrd@z Thu Jan 1 00:00:00 1970 From: Or Gerlitz Subject: Re: [PATCH net-next] ipv4: fix tunneled VM traffic over hw VXLAN/GRE GSO NIC Date: Sun, 22 Dec 2013 15:25:53 +0200 Message-ID: References: <1387393368-1028-1-git-send-email-weichunc@plumgrid.com> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1 Cc: David Miller , Eric Dumazet , Alexei Starovoitov , "netdev@vger.kernel.org" , Joseph Gasparakis To: Wei-Chun Chao , Stephen Hemminger Return-path: Received: from mail-pb0-f46.google.com ([209.85.160.46]:56387 "EHLO mail-pb0-f46.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752414Ab3LVNZy (ORCPT ); Sun, 22 Dec 2013 08:25:54 -0500 Received: by mail-pb0-f46.google.com with SMTP id md12so4401476pbc.33 for ; Sun, 22 Dec 2013 05:25:53 -0800 (PST) In-Reply-To: <1387393368-1028-1-git-send-email-weichunc@plumgrid.com> Sender: netdev-owner@vger.kernel.org List-ID: On Wed, Dec 18, 2013 at 9:02 PM, Wei-Chun Chao wrote: > This is also seen on 'net'. > > VM to VM GSO traffic is broken if it goes through VXLAN or GRE > tunnel and the physical NIC on the host supports hardware VXLAN/GRE > GSO offload (e.g. bnx2x and next-gen mlx4). Ack, this patch solves the breakage of VM traffic that is subject to offloaded vxlan traffic which I see with latest kernels and the mlx4 patches I posted last week. So how we make progress here, is this patch getting in or the alternative suggested down the thread by Wei-Chun here http://patchwork.ozlabs.org/patch/303025/?