From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-3.8 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SIGNED_OFF_BY,SPF_PASS,URIBL_BLOCKED autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id BF12AECE560 for ; Mon, 17 Sep 2018 14:58:16 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 85035214C2 for ; Mon, 17 Sep 2018 14:58:16 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 85035214C2 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=davemloft.net Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1729116AbeIQUZ4 (ORCPT ); Mon, 17 Sep 2018 16:25:56 -0400 Received: from shards.monkeyblade.net ([23.128.96.9]:45678 "EHLO shards.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726885AbeIQUZ4 (ORCPT ); Mon, 17 Sep 2018 16:25:56 -0400 Received: from localhost (74-93-104-98-Washington.hfc.comcastbusiness.net [74.93.104.98]) (using TLSv1 with cipher AES256-SHA (256/256 bits)) (Client did not present a certificate) (Authenticated sender: davem-davemloft) by shards.monkeyblade.net (Postfix) with ESMTPSA id C878E144A2347; Mon, 17 Sep 2018 07:58:13 -0700 (PDT) Date: Mon, 17 Sep 2018 07:58:13 -0700 (PDT) Message-Id: <20180917.075813.1145409055019392182.davem@davemloft.net> To: nicolas.ferre@microchip.com Cc: netdev@vger.kernel.org, linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, claudiu.beznea@microchip.com, alexandre.belloni@bootlin.com, ludovic.desroches@microchip.com, devicetree@vger.kernel.org Subject: Re: [PATCH] net: macb: disable scatter-gather for macb on sama5d3 From: David Miller In-Reply-To: <20180914154811.12090-1-nicolas.ferre@microchip.com> References: <20180914154811.12090-1-nicolas.ferre@microchip.com> X-Mailer: Mew version 6.7 on Emacs 25.3 / Mule 6.0 (HANACHIRUSATO) Mime-Version: 1.0 Content-Type: Text/Plain; charset=us-ascii Content-Transfer-Encoding: 7bit X-Greylist: Sender succeeded SMTP AUTH, not delayed by milter-greylist-4.5.12 (shards.monkeyblade.net [149.20.54.216]); Mon, 17 Sep 2018 07:58:14 -0700 (PDT) Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Nicolas Ferre Date: Fri, 14 Sep 2018 17:48:10 +0200 > Create a new configuration for the sama5d3-macb new compatibility string. > This configuration disables scatter-gather because we experienced lock down > of the macb interface of this particular SoC under very high load. > > Signed-off-by: Nicolas Ferre Applied, but are you really sure it isn't just some bug in the driver or somesuch?