From mboxrd@z Thu Jan 1 00:00:00 1970 From: David Miller Subject: Re: [net-next PATCH -- take 2] igb: allow tx of pre-formatted vlan tagged packets Date: Wed, 18 Mar 2009 23:40:47 -0700 (PDT) Message-ID: <20090318.234047.29760524.davem@davemloft.net> References: <20090312213345.GA12653@ajones-laptop.nbttech.com> <20090317173924.GA13723@ajones-laptop.nbttech.com> Mime-Version: 1.0 Content-Type: Text/Plain; charset=us-ascii Content-Transfer-Encoding: 7bit Cc: jeffrey.t.kirsher@intel.com, e1000-devel@lists.sourceforge.net, netdev@vger.kernel.org, shemminger@vyatta.com, alexander.h.duyck@intel.com To: ajones@riverbed.com Return-path: Received: from 74-93-104-97-Washington.hfc.comcastbusiness.net ([74.93.104.97]:59116 "EHLO sunset.davemloft.net" rhost-flags-OK-FAIL-OK-OK) by vger.kernel.org with ESMTP id S1752564AbZCSGlA (ORCPT ); Thu, 19 Mar 2009 02:41:00 -0400 In-Reply-To: <20090317173924.GA13723@ajones-laptop.nbttech.com> Sender: netdev-owner@vger.kernel.org List-ID: From: Arthur Jones Date: Tue, 17 Mar 2009 10:39:24 -0700 > When the 82575 is fed 802.1q packets, it chokes with > an error of the form: > > igb 0000:08:00.1: partial checksum but proto=81 > > As the logic there was not smart enough to look into > the vlan header to pick out the encapsulated protocol. > > There are times when we'd like to send these packets > out without having to configure a vlan on the interface. > Here we check for the vlan tag and allow the packet to > go out with the correct hardware checksum. > > Thanks to Kand Ly for discovering the > issue and the coming up with a solution. This patch is > based upon his work. > > Fixups from Stephen Hemminger and > Alexander Duyck . > > Signed-off-by: Arthur Jones Jeff, are you queueing this one up?