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=-3.7 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_PATCH,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED 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 E08F3C4BA23 for ; Fri, 13 Dec 2019 20:39:21 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 2AB942470A for ; Fri, 13 Dec 2019 20:39:21 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728213AbfLMQ2L (ORCPT ); Fri, 13 Dec 2019 11:28:11 -0500 Received: from relay3-d.mail.gandi.net ([217.70.183.195]:33015 "EHLO relay3-d.mail.gandi.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1728032AbfLMQ2L (ORCPT ); Fri, 13 Dec 2019 11:28:11 -0500 X-Originating-IP: 90.76.143.236 Received: from localhost (lfbn-tou-1-1075-236.w90-76.abo.wanadoo.fr [90.76.143.236]) (Authenticated sender: antoine.tenart@bootlin.com) by relay3-d.mail.gandi.net (Postfix) with ESMTPSA id 7EE8160010; Fri, 13 Dec 2019 16:28:08 +0000 (UTC) Date: Fri, 13 Dec 2019 17:28:08 +0100 From: Antoine Tenart To: Russell King - ARM Linux admin Cc: Antoine Tenart , Andrew Lunn , Florian Fainelli , Heiner Kallweit , "David S. Miller" , netdev@vger.kernel.org Subject: Re: [PATCH net-next 3/3] net: mvpp2: update mvpp2 validate() implementation Message-ID: <20191213162808.GB26710@kwain> References: <20191212174309.GM25745@shell.armlinux.org.uk> <20191213160420.GA26710@kwain> <20191213161144.GU25745@shell.armlinux.org.uk> MIME-Version: 1.0 Content-Type: text/plain; charset=iso-8859-1 Content-Disposition: inline Content-Transfer-Encoding: 8bit In-Reply-To: <20191213161144.GU25745@shell.armlinux.org.uk> Sender: netdev-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org On Fri, Dec 13, 2019 at 04:11:44PM +0000, Russell King - ARM Linux admin wrote: > On Fri, Dec 13, 2019 at 05:04:20PM +0100, Antoine Tenart wrote: > > On Thu, Dec 12, 2019 at 05:43:46PM +0000, Russell King wrote: > > > > > > diff --git a/drivers/net/ethernet/marvell/mvpp2/mvpp2_main.c b/drivers/net/ethernet/marvell/mvpp2/mvpp2_main.c > > > index 111b3b8239e1..fddd856338b4 100644 > > > --- a/drivers/net/ethernet/marvell/mvpp2/mvpp2_main.c > > > +++ b/drivers/net/ethernet/marvell/mvpp2/mvpp2_main.c > > > @@ -4786,6 +4786,8 @@ static void mvpp2_phylink_validate(struct phylink_config *config, > > > phylink_set(mask, 10000baseER_Full); > > > phylink_set(mask, 10000baseKR_Full); > > > } > > > + if (state->interface != PHY_INTERFACE_MODE_NA) > > > + break; > > > > > /* Fall-through */ > > > case PHY_INTERFACE_MODE_RGMII: > > > case PHY_INTERFACE_MODE_RGMII_ID: > > > @@ -4796,13 +4798,21 @@ static void mvpp2_phylink_validate(struct phylink_config *config, > > > phylink_set(mask, 10baseT_Full); > > > phylink_set(mask, 100baseT_Half); > > > phylink_set(mask, 100baseT_Full); > > > + if (state->interface != PHY_INTERFACE_MODE_NA) > > > + break; > > > > The two checks above will break the 10G/1G interfaces on the mcbin > > (eth0/eth1) as they can support both 10gbase-kr and 10/100/1000baseT > > modes depending on what's connected. With this patch only the modes > > related to the one defined in the device tree would be valid, breaking > > run-time reconfiguration of the link. > > Exactly which scenario are you talking about? The mcbin doubleshot > setup, or the singleshot setup? I was thinking about the doubleshot. > This patch (when combined with the others) has no effect on the > doubleshot, and should have no effect on the SFP cages on the single > shot. You're right, I just tested the series and it the two 10G/1G ports were able to be reconfigured at runtime, my bad. However it seems cp1_eth1 is coming up at 100Mbps only. (I haven't looked into it more than a quick test so far). # ethtool eth2 Settings for eth2: Supported ports: [ TP MII FIBRE ] Supported link modes: 10baseT/Half 10baseT/Full 100baseT/Half 100baseT/Full Supported pause frame use: Symmetric Receive-only Supports auto-negotiation: Yes Supported FEC modes: Not reported Advertised link modes: 10baseT/Half 10baseT/Full 100baseT/Half 100baseT/Full Advertised pause frame use: Symmetric Receive-only Advertised auto-negotiation: Yes Advertised FEC modes: Not reported Link partner advertised link modes: 10baseT/Half 10baseT/Full 100baseT/Half 100baseT/Full Link partner advertised pause frame use: Symmetric Receive-only Link partner advertised auto-negotiation: Yes Link partner advertised FEC modes: Not reported Speed: 100Mb/s Duplex: Full Port: MII PHYAD: 0 Transceiver: internal Auto-negotiation: on Link detected: yes The link partner however advertises: Advertised link modes: 10baseT/Half 10baseT/Full 100baseT/Half 100baseT/Full 1000baseT/Full Thanks, Antoine -- Antoine Ténart, Bootlin Embedded Linux and Kernel engineering https://bootlin.com