From mboxrd@z Thu Jan 1 00:00:00 1970 From: andrew@lunn.ch (Andrew Lunn) Date: Mon, 13 Oct 2014 16:21:56 +0200 Subject: Regarding tx-nocache-copy in the Sheevaplug In-Reply-To: <20141013105246.GD1972@vicerveza.homeunix.net> References: <20141013105246.GD1972@vicerveza.homeunix.net> Message-ID: <20141013142156.GE26864@lunn.ch> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org On Mon, Oct 13, 2014 at 12:52:46PM +0200, Llu?s Batlle i Rossell wrote: > Hello, > > on the 7th of January 2014 ths patch was applied: > https://lkml.org/lkml/2014/1/7/307 > > [PATCH v2] net: Do not enable tx-nocache-copy by default > > In the Sheevaplug (ARM Feroceon 88FR131 from Marvell) this made packets to be > sent corrupted. I think this machine has something special about the cache. Hi Llu?s Please could you describe your test setup. I would like to try to reproduce the problem. I have a machine based on kirkwood 6282 and the same ethernet. Thanks Andrew From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753840AbaJMOWc (ORCPT ); Mon, 13 Oct 2014 10:22:32 -0400 Received: from vps0.lunn.ch ([178.209.37.122]:37844 "EHLO vps0.lunn.ch" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752509AbaJMOWb (ORCPT ); Mon, 13 Oct 2014 10:22:31 -0400 Date: Mon, 13 Oct 2014 16:21:56 +0200 From: Andrew Lunn To: =?iso-8859-1?Q?Llu=EDs?= Batlle i Rossell Cc: linux-kernel@vger.kernel.org, netdev@vger.kernel.org, Carles =?iso-8859-1?Q?Pag=E8s?= , linux-arm-kernel@lists.infradead.org Subject: Re: Regarding tx-nocache-copy in the Sheevaplug Message-ID: <20141013142156.GE26864@lunn.ch> References: <20141013105246.GD1972@vicerveza.homeunix.net> MIME-Version: 1.0 Content-Type: text/plain; charset=iso-8859-1 Content-Disposition: inline Content-Transfer-Encoding: 8bit In-Reply-To: <20141013105246.GD1972@vicerveza.homeunix.net> User-Agent: Mutt/1.5.21 (2010-09-15) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Mon, Oct 13, 2014 at 12:52:46PM +0200, Lluís Batlle i Rossell wrote: > Hello, > > on the 7th of January 2014 ths patch was applied: > https://lkml.org/lkml/2014/1/7/307 > > [PATCH v2] net: Do not enable tx-nocache-copy by default > > In the Sheevaplug (ARM Feroceon 88FR131 from Marvell) this made packets to be > sent corrupted. I think this machine has something special about the cache. Hi Lluís Please could you describe your test setup. I would like to try to reproduce the problem. I have a machine based on kirkwood 6282 and the same ethernet. Thanks Andrew