From: Stas Sergeev Subject: [PATCH v4 0/3] net: enable inband link state negotiation only when explicitly requested Date: Thu, 16 Jul 2015 17:49:03 +0300 Message-ID: <55A7C45F.1070501@list.ru> Mime-Version: 1.0 Content-Type: text/plain; charset=windows-1252 Content-Transfer-Encoding: 7bit Cc: Linux kernel , Sebastien Rannou , Arnaud Ebalard , Stas Sergeev , Florian Fainelli To: netdev Return-path: Received: from smtp14.mail.ru ([94.100.181.95]:51539 "EHLO smtp14.mail.ru" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751888AbbGPOtK (ORCPT ); Thu, 16 Jul 2015 10:49:10 -0400 Sender: netdev-owner@vger.kernel.org List-ID: Hello. Currently the link status auto-negotiation is enabled for any SGMII link with fixed-link DT binding. The regression was reported: https://lkml.org/lkml/2015/7/8/865 Apparently not all HW that implements SGMII protocol, generates the inband status for the auto-negotiation to work. More details here: https://lkml.org/lkml/2015/7/10/206 The following patches reverts to the old behavior by default, which is to not enable the auto-negotiation for fixed-link. The new DT property is added that allows to explicitly request the auto-negotiation. Those who were affected by the change, please send your Tested-by, Thanks!