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=-5.1 required=3.0 tests=DKIM_SIGNED,DKIM_VALID, DKIM_VALID_AU,FREEMAIL_FORGED_FROMDOMAIN,FREEMAIL_FROM, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SIGNED_OFF_BY,SPF_HELO_NONE, SPF_PASS,URIBL_BLOCKED,USER_AGENT_SANE_1 autolearn=unavailable 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 4CE1ECA9EB9 for ; Thu, 24 Oct 2019 02:38:32 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 235F22173B for ; Thu, 24 Oct 2019 02:38:32 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="um4wf+yg" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2437146AbfJXCi3 (ORCPT ); Wed, 23 Oct 2019 22:38:29 -0400 Received: from mail-pg1-f177.google.com ([209.85.215.177]:35075 "EHLO mail-pg1-f177.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S2408271AbfJXCi2 (ORCPT ); Wed, 23 Oct 2019 22:38:28 -0400 Received: by mail-pg1-f177.google.com with SMTP id c8so8473586pgb.2; Wed, 23 Oct 2019 19:38:27 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=subject:to:cc:references:from:message-id:date:user-agent :mime-version:in-reply-to:content-language:content-transfer-encoding; bh=W2bu4Fn4RFMDHBW7iO6wGU9vGj8pXizaxUdy9yOfeFA=; b=um4wf+yg7+jsMVP4cjwA3Zfy28R8EO1QwRWS+hVi+t/vX04KSy6nbLKMfXUl1BW9dF J+44fl43OP5jOt9aU5i5uKtRwucpw9uMmNE1eDnz7AHQ0JgTfyHvLHicGhIh/Ss+jpBk xMDDXp+EIshBWvMLnNMkXiLbN1QJ4VsRyVrAGT0Vmq98NNGLAUfmlD8qaNY2FEfKxuwb Y9YYKtB9MxAlsPqWWyG1QS74WsBH3loXzd4tHahgq30gn4zdf8Bj7he/Mlj8qkJLitKP KlgaNjF4QD06mi+QjFBTMw2C+Q/KHqJ/1POZ57JMFzJgqz6rexXDeE9qcA0S8Tltq51m czTA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:subject:to:cc:references:from:message-id:date :user-agent:mime-version:in-reply-to:content-language :content-transfer-encoding; bh=W2bu4Fn4RFMDHBW7iO6wGU9vGj8pXizaxUdy9yOfeFA=; b=U62/IHxa27i7BTA7uwrH35WJqFJd86Pk9OidG6lE35dtcINuzGHnuUtFo48DEqMohh NTv3grGFdDSzi2H1ViGI/uDVH0V43gqsbpiiYcJKRr78rHaZPzncxKjKIHPTSRkq/ZTR pNXWo0lprcoJuMOYvrO2KuUO4Amj+XIQKtrOsJ3w8MUIxDRWVK8gOAEV11lP5/1WU0/S mJ9SEKj0orojX4szqksUA1PYXZjXByqJ9bPN4y8U4WagZXN89jqOkR1Q607+GSjtrslg aVUwziULLqYK38j3+hYPI04bTKhJs96hFNwdLk+AR983R8QvyZJ0+9+VmBDOWI85Ydfs 5RKg== X-Gm-Message-State: APjAAAWEY4Inz8wwvsT+MVn7mv+CcI/kp8t9S2vOXl1KW5SYluBdWCKs 7oXN1evul/WGt/uZ/l0eEV/u2aRc X-Google-Smtp-Source: APXvYqwpZfo9jbuJvTTb+ojy/PC0AD/69emJEj3c91Wu6Lu8qwG6Poqwg4+bOA474CbB6fm8wQN8KQ== X-Received: by 2002:a63:9302:: with SMTP id b2mr11044609pge.342.1571884706330; Wed, 23 Oct 2019 19:38:26 -0700 (PDT) Received: from [192.168.1.3] (ip68-111-84-250.oc.oc.cox.net. [68.111.84.250]) by smtp.gmail.com with ESMTPSA id q6sm26836314pgn.44.2019.10.23.19.38.24 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Wed, 23 Oct 2019 19:38:25 -0700 (PDT) Subject: Re: [PATCH 1/2] net: phy: dp83867: enable robust auto-mdix To: Grygorii Strashko , "David S. Miller" , netdev@vger.kernel.org, Andrew Lunn , Heiner Kallweit Cc: Sekhar Nori , linux-kernel@vger.kernel.org References: <20191023144846.1381-1-grygorii.strashko@ti.com> <20191023144846.1381-2-grygorii.strashko@ti.com> From: Florian Fainelli Message-ID: Date: Wed, 23 Oct 2019 19:38:24 -0700 User-Agent: Mozilla/5.0 (Windows NT 10.0; WOW64; rv:68.0) Gecko/20100101 Thunderbird/68.2.0 MIME-Version: 1.0 In-Reply-To: <20191023144846.1381-2-grygorii.strashko@ti.com> Content-Type: text/plain; charset=utf-8 Content-Language: en-US Content-Transfer-Encoding: 7bit Sender: netdev-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org On 10/23/2019 7:48 AM, Grygorii Strashko wrote: > The link detection timeouts can be observed (or link might not be detected > at all) when dp83867 PHY is configured in manual mode (speed/duplexity). s/duplexity/duplex/ > > CFG3[9] Robust Auto-MDIX option allows significantly improve link detection allows to > in case dp83867 is configured in manual mode and reduce link detection > time. > As per DM: "If link partners are configured to operational modes that are > not supported by normal Auto MDI/MDIX mode (like Auto-Neg versus Force > 100Base-TX or Force 100Base-TX versus Force 100Base-TX), this Robust Auto > MDI/MDIX mode allows MDI/MDIX resolution and prevents deadlock." > > Hence, enable this option by default as there are no known reasons > not to do so. > > Signed-off-by: Grygorii Strashko Reviewed-by: Florian Fainelli -- Florian