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=-5.5 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,NICE_REPLY_A,SPF_HELO_NONE, SPF_PASS,USER_AGENT_SANE_1 autolearn=no 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 DE78FC4346E for ; Thu, 24 Sep 2020 15:40:48 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 8DE732220C for ; Thu, 24 Sep 2020 15:40:48 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728381AbgIXPkr (ORCPT ); Thu, 24 Sep 2020 11:40:47 -0400 Received: from foss.arm.com ([217.140.110.172]:49398 "EHLO foss.arm.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1728139AbgIXPkr (ORCPT ); Thu, 24 Sep 2020 11:40:47 -0400 Received: from usa-sjc-imap-foss1.foss.arm.com (unknown [10.121.207.14]) by usa-sjc-mx-foss1.foss.arm.com (Postfix) with ESMTP id A06E51FB; Thu, 24 Sep 2020 08:40:46 -0700 (PDT) Received: from [192.168.122.166] (unknown [10.119.48.10]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPSA id 718B13F718; Thu, 24 Sep 2020 08:40:46 -0700 (PDT) Subject: Re: [PATCH] net/fsl: quieten expected MDIO access failures To: Jamie Iles , Andrew Lunn Cc: netdev@vger.kernel.org, Calvin Johnson References: <20200924145645.1789724-1-jamie@nuviainc.com> <20200924150453.GA3821492@lunn.ch> <20200924151200.GW418386@poplar> From: Jeremy Linton Message-ID: Date: Thu, 24 Sep 2020 10:40:24 -0500 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:68.0) Gecko/20100101 Thunderbird/68.11.0 MIME-Version: 1.0 In-Reply-To: <20200924151200.GW418386@poplar> Content-Type: text/plain; charset=utf-8; format=flowed Content-Language: en-US Content-Transfer-Encoding: 7bit Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org Hi, On 9/24/20 10:12 AM, Jamie Iles wrote: > Hi Andrew, > > On Thu, Sep 24, 2020 at 05:04:53PM +0200, Andrew Lunn wrote: >> On Thu, Sep 24, 2020 at 03:56:45PM +0100, Jamie Iles wrote: >>> MDIO reads can happen during PHY probing, and printing an error with >>> dev_err can result in a large number of error messages during device >>> probe. On a platform with a serial console this can result in >>> excessively long boot times in a way that looks like an infinite loop >>> when multiple busses are present. Since 0f183fd151c (net/fsl: enable >>> extended scanning in xgmac_mdio) we perform more scanning so there are >>> potentially more failures. >>> >>> Reduce the logging level to dev_dbg which is consistent with the >>> Freescale enetc driver. >> >> Hi Jamie >> >> Does the system you are using suffer from Errata A011043? > > It's the HoneyComb SolidRun (LX2160A) and I can't find an errata list > for that chip. It's booting from ACPI in any case so wouldn't have that > workaround set. I don't see those messages, but granted my firmware is a bit out of date. Let me upgrade it and see if I can reproduce it too. (also +CC Calvin)