From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755995Ab3A2LqI (ORCPT ); Tue, 29 Jan 2013 06:46:08 -0500 Received: from bear.ext.ti.com ([192.94.94.41]:50810 "EHLO bear.ext.ti.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752969Ab3A2LqC (ORCPT ); Tue, 29 Jan 2013 06:46:02 -0500 Message-ID: <5107B650.5090901@ti.com> Date: Tue, 29 Jan 2013 17:15:20 +0530 From: Mugunthan V N User-Agent: Mozilla/5.0 (Windows NT 6.1; WOW64; rv:17.0) Gecko/20130107 Thunderbird/17.0.2 MIME-Version: 1.0 To: Pantelis Antoniou CC: Richard Cochran , Matt Porter , Chase Maupin , Jason Kridner , Tony Lindgren , , Subject: Re: [PATCH] cpsw: Fix interrupt storm among other things References: <1359378668-26536-1-git-send-email-panto@antoniou-consulting.com> In-Reply-To: <1359378668-26536-1-git-send-email-panto@antoniou-consulting.com> Content-Type: text/plain; charset="ISO-8859-1"; format=flowed Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 1/28/2013 6:41 PM, Pantelis Antoniou wrote: > Fix interrupt storm on bone A4 cause by non-by-the-book interrupt handling. > While at it, added a non-NAPI mode (which is easier to debug), plus > some general fixes. > > Signed-off-by: Pantelis Antoniou > --- > Documentation/devicetree/bindings/net/cpsw.txt | 1 + > drivers/net/ethernet/ti/cpsw.c | 222 +++++++++++++++++++++---- > drivers/net/ethernet/ti/davinci_cpdma.c | 4 +- > drivers/net/ethernet/ti/davinci_cpdma.h | 2 +- > include/linux/platform_data/cpsw.h | 1 + > 5 files changed, 194 insertions(+), 36 deletions(-) I have tested CPSW on AM335x EVM 1.5A with flood ping and i am not seeing any interrupt storm. Can you provide more details on how to reproduce the issue. Regards Mugunthan V N