From mboxrd@z Thu Jan 1 00:00:00 1970 From: David Miller Subject: Re: [PATCH 1/5] sfc: Pad packets to 33 bytes to prevent TX packet parser lockup Date: Sat, 21 Mar 2009 19:09:42 -0700 (PDT) Message-ID: <20090321.190942.86384309.davem@davemloft.net> References: <1237591540.3217.6.camel@achroite> Mime-Version: 1.0 Content-Type: Text/Plain; charset=us-ascii Content-Transfer-Encoding: 7bit Cc: netdev@vger.kernel.org, linux-net-drivers@solarflare.com To: bhutchings@solarflare.com Return-path: Received: from 74-93-104-97-Washington.hfc.comcastbusiness.net ([74.93.104.97]:59969 "EHLO sunset.davemloft.net" rhost-flags-OK-FAIL-OK-OK) by vger.kernel.org with ESMTP id S1753122AbZCVCJy (ORCPT ); Sat, 21 Mar 2009 22:09:54 -0400 In-Reply-To: <1237591540.3217.6.camel@achroite> Sender: netdev-owner@vger.kernel.org List-ID: From: Ben Hutchings Date: Fri, 20 Mar 2009 23:25:39 +0000 > The packet parser used in the TX data path for locating checksum > fields can lose synchronisation with the TX queue manager when > handling packets that look like IPv4 but are too short (17-32 bytes). > Work around this by padding to 33 bytes. > > Signed-off-by: Ben Hutchings Applied.