From mboxrd@z Thu Jan 1 00:00:00 1970 From: Andrew Lunn Subject: Re: [PATCH net-next 7/9] net: stmmac: Integrate XGMAC into main driver flow Date: Thu, 2 Aug 2018 16:36:38 +0200 Message-ID: <20180802143638.GD7462@lunn.ch> References: <39b57ee542fc20a1c457c12e6011dc239dda8725.1533125016.git.joabreu@synopsys.com> <20180801152330.GE32125@lunn.ch> <6dae65da-699f-77c9-2f50-775c888b5a12@synopsys.com> <20180802140323.GB7462@lunn.ch> <9c9d9d73-5566-a432-4dad-91cd8f5267a9@synopsys.com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Cc: netdev@vger.kernel.org, "David S. Miller" , Joao Pinto , Giuseppe Cavallaro , Alexandre Torgue To: Jose Abreu Return-path: Received: from vps0.lunn.ch ([185.16.172.187]:53944 "EHLO vps0.lunn.ch" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S2387520AbeHBQ2L (ORCPT ); Thu, 2 Aug 2018 12:28:11 -0400 Content-Disposition: inline In-Reply-To: <9c9d9d73-5566-a432-4dad-91cd8f5267a9@synopsys.com> Sender: netdev-owner@vger.kernel.org List-ID: > Sorry, I made a mistake. Where it reads SGMII in my reply I was > referring to XGMII. So you have XGMII between the MAC and the PHY. That should support 2.5G, 5G and 10G. What i don't know is if you can also do 10/100/1000 over XGMII? How are you currently connecting your 1G PHY to the MAC? XGMII is a big parallel bus, where as SGMII is a small serial bus. I would say, before this patchset goes anywhere, you need to test 10/100/1000/2.5G/10G, with at least one PHY. Alternatively, take out support for 2.5G/10G and C45, and post patches for just > 1G and C22. That you can test and you know works. You can add the rest later. Andrew