From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753031AbbC0Nmy (ORCPT ); Fri, 27 Mar 2015 09:42:54 -0400 Received: from vps0.lunn.ch ([178.209.37.122]:58393 "EHLO vps0.lunn.ch" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752631AbbC0Nmx (ORCPT ); Fri, 27 Mar 2015 09:42:53 -0400 Date: Fri, 27 Mar 2015 14:39:07 +0100 From: Andrew Lunn To: Stas Sergeev Cc: netdev@vger.kernel.org, Linux kernel , Stas Sergeev Subject: Re: [PATCH 0/6] mvneta: SGMII-based in-band link state signaling Message-ID: <20150327133907.GA11975@lunn.ch> References: <55155AFC.4050800@list.ru> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <55155AFC.4050800@list.ru> User-Agent: Mutt/1.5.21 (2010-09-15) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Fri, Mar 27, 2015 at 04:28:28PM +0300, Stas Sergeev wrote: > Hello. > > Currently the fixed-link DT binding is pre-configured and > cannot be changed in run-time. This means the cable unplug > events are not being detected, and the link parameters can't > be negotiated. O.K, i will ask the dumb question.... Isn't fixed-link supposed to be used for links which are fixed? Why would a fixed-link change? The use cases i've seen for this is when you are connecting the MAC to a Switch. The link is configured to its fastest mode and then left alone. Please could you give some more background information. What do you have on the other end of this fixed link which keeps changing? Obviously not a switch. Thanks Andrew