From mboxrd@z Thu Jan 1 00:00:00 1970 From: Andrew Lunn Subject: Re: [PATCH] net: ethernet: fec: Add missing SPEED_ Date: Sat, 20 Oct 2018 20:59:47 +0200 Message-ID: <20181020185947.GA6615@lunn.ch> References: <2621cbc9-47ed-ce2a-b7ee-262f17dc138f@gmail.com> <20181018184715.GA31736@Red> <20181018191612.GB31736@Red> <5cb0731b-83c5-5ed5-d022-98f8627d1737@gmail.com> <20181018195909.GA11317@Red> <1b784f69-3ec2-feb2-81e1-9a335cf477c3@gmail.com> <20181020153922.GC1596@lunn.ch> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Cc: Florian Fainelli , LABBE Corentin , davem@davemloft.net, fugang.duan@nxp.com, linux-kernel@vger.kernel.org, netdev@vger.kernel.org To: Heiner Kallweit Return-path: Content-Disposition: inline In-Reply-To: Sender: linux-kernel-owner@vger.kernel.org List-Id: netdev.vger.kernel.org > I dare to dispute here ;) Above code snippet from phy_probe() will > (try to) set also SUPPORTED_Asym_Pause, because phydrv->features > doesn't include any of the two pause flags. > The statement in bcm63xx_config_init you refer to seems to be a > no-op to me therefore. > > I'd say the correct way is to change the PHY config like this: > .features = PHY_BASIC_FEATURES | SUPPORTED_Pause; > It's exactly the use case the code snippet above covers. Yes, you are correct. But it is no longer possible to just do PHY_BASIC_FEATURES | SUPPORTED_Pause because .features is no loner a u32 but a linux bitmap. We need to keep the same idea, allow the PHY driver to indicate it supports a subset of Pause, and if not, enable pause by default. Maybe the easiest way is to move this chunk of code to after the probe function is called. Andrew