From mboxrd@z Thu Jan 1 00:00:00 1970 From: Cyril Chemparathy Subject: Re: [PATCH v3 00/10] split out emac cpdma and mdio for reuse Date: Mon, 13 Sep 2010 11:46:00 -0400 Message-ID: <4C8E4738.3040809@ti.com> References: <1283891142-15522-1-git-send-email-cyril@ti.com> <4C8950D4.9060102@criticallink.com> <201009101823.52755.caglarakyuz@gmail.com> <201009111154.42171.caglarakyuz@gmail.com> <4C8E308B.7020003@ti.com> Reply-To: cyril@ti.com Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Return-path: Received: from arroyo.ext.ti.com ([192.94.94.40]:53735 "EHLO arroyo.ext.ti.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752417Ab0IMPqE (ORCPT ); Mon, 13 Sep 2010 11:46:04 -0400 In-Reply-To: <4C8E308B.7020003@ti.com> Sender: linux-omap-owner@vger.kernel.org List-Id: linux-omap@vger.kernel.org To: "Chemparathy, Cyril" Cc: Caglar Akyuz , Michael Williamson , Kevin Hilman , "netdev@vger.kernel.org" , "davinci-linux-open-source@linux.davincidsp.com" , "linux-omap@vger.kernel.org" Hi Caglar, [...] > Assuming that the DMA got stuck at some point leading up to the transmit > timeout, any ideas as to why a host error was not thrown? To help > debug, I'll post out a set of patches that dump out the MAC (and DMA) > registers on timeout. That should give us some visibility into the problem. I have posted a couple of additional patches for this on [1]. Would you mind giving these a quick try? The register dumps should prove useful in figuring this out. Regards Cyril. [1] http://arago-project.org/git/people/?p=cyril/linux-tnetv107x.git;a=shortlog;h=refs/heads/emac-cpdma-mdio-fixes