netdev - Re: [PATCH net-next v2 00/10] define and enforce phylink bindings

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <4856b212-5bc5-4783-a184-b34a4a915878@lunn.ch>
Date: Sat, 23 Sep 2023 00:36:06 +0200
From: Andrew Lunn <andrew@...n.ch>
To: Arınç ÜNAL <arinc.unal@...nc9.com>
Cc: "Russell King (Oracle)" <linux@...linux.org.uk>,
	Rob Herring <robh+dt@...nel.org>,
	Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
	"David S. Miller" <davem@...emloft.net>,
	Eric Dumazet <edumazet@...gle.com>,
	Jakub Kicinski <kuba@...nel.org>, Paolo Abeni <pabeni@...hat.com>,
	Conor Dooley <conor+dt@...nel.org>,
	George McCollister <george.mccollister@...il.com>,
	Florian Fainelli <f.fainelli@...il.com>,
	Vladimir Oltean <olteanv@...il.com>,
	Kurt Kanzenbach <kurt@...utronix.de>,
	Matthias Brugger <matthias.bgg@...il.com>,
	AngeloGioacchino Del Regno <angelogioacchino.delregno@...labora.com>,
	Woojung Huh <woojung.huh@...rochip.com>,
	UNGLinuxDriver@...rochip.com,
	Linus Walleij <linus.walleij@...aro.org>,
	Alvin Šipraga <alsi@...g-olufsen.dk>,
	Clément Léger <clement.leger@...tlin.com>,
	Marcin Wojtas <mw@...ihalf.com>,
	Lars Povlsen <lars.povlsen@...rochip.com>,
	Steen Hegelund <Steen.Hegelund@...rochip.com>,
	Daniel Machon <daniel.machon@...rochip.com>,
	Radhey Shyam Pandey <radhey.shyam.pandey@....com>,
	Daniel Golle <daniel@...rotopia.org>,
	Landen Chao <Landen.Chao@...iatek.com>,
	DENG Qingfang <dqfext@...il.com>,
	Sean Wang <sean.wang@...iatek.com>,
	Geert Uytterhoeven <geert+renesas@...der.be>,
	Magnus Damm <magnus.damm@...il.com>,
	Maxime Chevallier <maxime.chevallier@...tlin.com>,
	Nicolas Ferre <nicolas.ferre@...rochip.com>,
	Claudiu Beznea <claudiu.beznea@...rochip.com>,
	Marek Vasut <marex@...x.de>,
	Claudiu Manoil <claudiu.manoil@....com>,
	Alexandre Belloni <alexandre.belloni@...tlin.com>,
	John Crispin <john@...ozen.org>,
	Madalin Bucur <madalin.bucur@....com>,
	Ioana Ciornei <ioana.ciornei@....com>,
	Lorenzo Bianconi <lorenzo@...nel.org>, Felix Fietkau <nbd@....name>,
	Horatiu Vultur <horatiu.vultur@...rochip.com>,
	Oleksij Rempel <linux@...pel-privat.de>,
	Alexandre Torgue <alexandre.torgue@...s.st.com>,
	Giuseppe Cavallaro <peppe.cavallaro@...com>,
	Jose Abreu <joabreu@...opsys.com>,
	Grygorii Strashko <grygorii.strashko@...com>,
	Sekhar Nori <nsekhar@...com>,
	Shyam Pandey <radhey.shyam.pandey@...inx.com>,
	mithat.guner@...ont.com, erkin.bozoglu@...ont.com,
	netdev@...r.kernel.org, devicetree@...r.kernel.org,
	linux-kernel@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
	linux-mediatek@...ts.infradead.org,
	linux-renesas-soc@...r.kernel.org
Subject: Re: [PATCH net-next v2 00/10] define and enforce phylink bindings

> I agree. My patch description here failed to explain the actual issue,
> which is missing hardware descriptions. Here's what I understand. An
> ethernet-controller is a MAC. For the MAC to work properly with its link
> partner, at least one of these must be described:
> - pointer to a PHY to retrieve link information from the PHY
> - pointer to a PCS to retrieve link information from the PCS
> - pointer to an SFP to retrieve link information from the SFP
> - static link information

You are missing:

- The MAC has firmware driving the PHY, nothing for linux to do.

There are properties in ethernet-controller.yaml the MAC driver would
however like to use such as local-mac-address, max-frame-size,
nvmem-cell-names etc.

	Andrew