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=-0.8 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS autolearn=no 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 CE765C433E1 for ; Tue, 2 Jun 2020 08:08:34 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id B00672072F for ; Tue, 2 Jun 2020 08:08:34 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726606AbgFBIIe convert rfc822-to-8bit (ORCPT ); Tue, 2 Jun 2020 04:08:34 -0400 Received: from mx2.suse.de ([195.135.220.15]:60930 "EHLO mx2.suse.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1725897AbgFBIIa (ORCPT ); Tue, 2 Jun 2020 04:08:30 -0400 X-Virus-Scanned: by amavisd-new at test-mx.suse.de Received: from relay2.suse.de (unknown [195.135.220.254]) by mx2.suse.de (Postfix) with ESMTP id 30EA1AEEE; Tue, 2 Jun 2020 08:08:30 +0000 (UTC) Date: Tue, 2 Jun 2020 10:08:26 +0200 From: Thomas Bogendoerfer To: Andrew Lunn Cc: Russell King - ARM Linux admin , "David S. Miller" , Jakub Kicinski , netdev@vger.kernel.org, linux-kernel@vger.kernel.org Subject: Re: [PATCH net] net: mvpp2: Enable autoneg bypass for 1000BaseX/2500BaseX ports Message-Id: <20200602100826.72465faaab5f013e08851dfe@suse.de> In-Reply-To: <20200529163340.GI869823@lunn.ch> References: <20200528130738.GT1551@shell.armlinux.org.uk> <20200528151733.f1bc2fcdcb312b19b2919be9@suse.de> <20200528135608.GU1551@shell.armlinux.org.uk> <20200528163335.8f730b5a3ddc8cd9beab367f@suse.de> <20200528144805.GW1551@shell.armlinux.org.uk> <20200528204312.df9089425162a22e89669cf1@suse.de> <20200528220420.GY1551@shell.armlinux.org.uk> <20200529130539.3fe944fed7228e2b061a1e46@suse.de> <20200529145928.GF869823@lunn.ch> <20200529175225.a3be1b4faaa0408e165435ad@suse.de> <20200529163340.GI869823@lunn.ch> X-Mailer: Sylpheed 3.5.1 (GTK+ 2.24.32; x86_64-suse-linux-gnu) Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 8BIT Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Fri, 29 May 2020 18:33:40 +0200 Andrew Lunn wrote: > > > By propagated, you mean if the external link is down, the link between > > > the switch and node 1 will also be forced down, at the SERDES level? > > > > yes > > > > > And if external ports are down, the nodes cannot talk to each other? > > > > correct > > > > > External link down causes the whole in box network to fall apart? That > > > seems a rather odd design. > > > > as I'm not an expert in ceph, I can't judge. But I'll bring it up. > > I guess for a single use appliance this is O.K. But it makes the > hardware unusable as a general purpose server. > > Is there a variant of the hardware to be used as a general purpose > server, rather than as a Ceph appliance? If so, does it share the same > DT files? I don't know of any, but it would just need some way to change the switch configuration. So it's independent from linux running on the nodes. Thomas. -- SUSE Software Solutions Germany GmbH HRB 36809 (AG Nürnberg) Geschäftsführer: Felix Imendörffer