From mboxrd@z Thu Jan 1 00:00:00 1970 From: =?iso-8859-1?Q?Llu=EDs?= Batlle i Rossell Subject: Regarding tx-nocache-copy in the Sheevaplug Date: Mon, 13 Oct 2014 12:52:46 +0200 Message-ID: <20141013105246.GD1972@vicerveza.homeunix.net> Mime-Version: 1.0 Content-Type: text/plain; charset=iso-8859-1 Content-Transfer-Encoding: QUOTED-PRINTABLE Cc: Carles =?iso-8859-1?Q?Pag=E8s?= , linux-arm-kernel@lists.infradead.org To: linux-kernel@vger.kernel.org, netdev@vger.kernel.org Return-path: Content-Disposition: inline Sender: linux-kernel-owner@vger.kernel.org List-Id: netdev.vger.kernel.org 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 =20 In the Sheevaplug (ARM Feroceon 88FR131 from Marvell) this made packets= to be sent corrupted. I think this machine has something special about the ca= che. Enabling back this tx-nocache-copy (as it used to be before the patch) = the transfers work fine again. I think that most people, encountering this = problem, completely disable the tx offload instead of enabling back this setting= =2E Is this an ARM kernel problem regarding this platform? Thank you, Llu=EDs