From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S933045AbeCSNKS (ORCPT ); Mon, 19 Mar 2018 09:10:18 -0400 Received: from mail.bootlin.com ([62.4.15.54]:58673 "EHLO mail.bootlin.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S932998AbeCSNKQ (ORCPT ); Mon, 19 Mar 2018 09:10:16 -0400 Date: Mon, 19 Mar 2018 14:10:09 +0100 From: Antoine Tenart To: Andrew Lunn Cc: Antoine Tenart , Russell King - ARM Linux , davem@davemloft.net, kishon@ti.com, gregory.clement@bootlin.com, jason@lakedaemon.net, sebastian.hesselbarth@gmail.com, netdev@vger.kernel.org, linux-kernel@vger.kernel.org, thomas.petazzoni@bootlin.com, maxime.chevallier@bootlin.com, miquel.raynal@bootlin.com, nadavh@marvell.com, stefanc@marvell.com, ymarkman@marvell.com, mw@semihalf.com, linux-arm-kernel@lists.infradead.org Subject: Re: [PATCH net-next 02/10] net: phy: phylink: allow 10GKR interface to use in-band negotiation Message-ID: <20180319131009.GJ4519@kwain> References: <20180316103351.16616-1-antoine.tenart@bootlin.com> <20180316103351.16616-3-antoine.tenart@bootlin.com> <20180316155307.GQ9418@n2100.armlinux.org.uk> <20180319085252.GF4519@kwain> <20180319111205.GB2743@n2100.armlinux.org.uk> <20180319125227.GI4519@kwain> <20180319125953.GD19795@lunn.ch> MIME-Version: 1.0 Content-Type: text/plain; charset=iso-8859-1 Content-Disposition: inline Content-Transfer-Encoding: 8bit In-Reply-To: <20180319125953.GD19795@lunn.ch> User-Agent: Mutt/1.9.2 (2017-12-15) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Hi Andrew, On Mon, Mar 19, 2018 at 01:59:53PM +0100, Andrew Lunn wrote: > > If they don't have PHYs, how are the connected to the outside world? On 7k/8k you have the following scheme for 10G only interfaces: MAC -- Comphy -- PHY -- SFP cage -- ... Or MAC -- Comphy -- SFP cage -- ... The comphy provides serdes lanes, and can be configured in various modes (SGMII, 2500SGMII, 10GKR...). Antoine -- Antoine Ténart, Bootlin (formerly Free Electrons) Embedded Linux and Kernel engineering https://bootlin.com