From: "Markus Stockhausen" <markus.stockhausen@gmx.de>
To: "'Andrew Lunn'" <andrew@lunn.ch>
Cc: <hkallweit1@gmail.com>, <linux@armlinux.org.uk>,
<davem@davemloft.net>, <edumazet@google.com>, <kuba@kernel.org>,
<pabeni@redhat.com>, <netdev@vger.kernel.org>,
<chris.packham@alliedtelesis.co.nz>, <daniel@makrotopia.org>,
<robh@kernel.org>, <krzk+dt@kernel.org>, <conor+dt@kernel.org>,
<devicetree@vger.kernel.org>
Subject: AW: [PATCH net-next v14 10/13] net: mdio: realtek-rtl9300: Open up C22 and C45 space in parallel
Date: Mon, 17 Aug 2026 22:25:47 +0200 [thread overview]
Message-ID: <08e501dd2e86$98e9fdf0$cabdf9d0$@gmx.de> (raw)
In-Reply-To: <2fd17092-753a-4a80-bdf4-72801eca8d0a@lunn.ch>
> Von: Andrew Lunn <andrew@lunn.ch>
> Gesendet: Montag, 17. August 2026 22:11
> An: Markus Stockhausen <markus.stockhausen@gmx.de>
> Betreff: Re: [PATCH net-next v14 10/13] net: mdio: realtek-rtl9300: Open
up C22 and C45 space in parallel
>
> > All downstream 1G PHY drivers for that platform use dedicated
> > read_mmd/write_mmd callbacks that run __mdiobus_c45_read/write().
> > So no warnings during bootup.
>
> O.K.
>
> In Mainline, please think about how you make that work. Are these PHYs
> also used with MDIO busses which have working C45 over C22? And no
> C45?
Until now we never encountered any of these PHYs in scope
(RTL8218x octa port) outside of the Realtek RTL83xx/RTL93xx
ecosystem.
Independent from that upstream "Generic FE-GE Realtek PHY"
uses the same unconditional C45 access - regardeless of the bus
feature set.
Makrus
next prev parent reply other threads:[~2026-08-17 20:25 UTC|newest]
Thread overview: 25+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-08-17 16:26 [PATCH net-next v14 00/13] net: mdio: realtek-rtl9300: Add RTL83xx support Markus Stockhausen
2026-08-17 16:26 ` [PATCH net-next v14 01/13] dt-bindings: net: realtek,rtl9301-mdio: Add RTL83xx series Markus Stockhausen
2026-08-17 16:26 ` [PATCH net-next v14 02/13] net: mdio: realtek-rtl9300: Add polling documentation Markus Stockhausen
2026-08-17 16:26 ` [PATCH net-next v14 03/13] net: mdio: realtek-rtl9300: deny C45 over C22 access Markus Stockhausen
2026-08-17 16:26 ` [PATCH net-next v14 04/13] net: phy: add phy_detach_internal() helper Markus Stockhausen
2026-08-17 16:41 ` Andrew Lunn
2026-08-17 16:26 ` [PATCH net-next v14 05/13] net: phy: add (*notify_phy_attach/detach)() hooks to struct mii_bus Markus Stockhausen
2026-08-17 16:46 ` Andrew Lunn
2026-08-17 16:26 ` [PATCH net-next v14 06/13] net: mdio: realtek-rtl9300: suppress sysfs bind/unbind attributes Markus Stockhausen
2026-08-17 16:47 ` Andrew Lunn
2026-08-17 16:26 ` [PATCH net-next v14 07/13] net: mdio: realtek-rtl9300: Configure hardware polling during probing Markus Stockhausen
2026-08-17 16:26 ` [PATCH net-next v14 08/13] net: mdio: realtek-rtl9300: Add page tracking Markus Stockhausen
2026-08-17 16:26 ` [PATCH net-next v14 09/13] net: mdio: realtek-rtl9300: Increase MDIO timeout Markus Stockhausen
2026-08-17 16:26 ` [PATCH net-next v14 10/13] net: mdio: realtek-rtl9300: Open up C22 and C45 space in parallel Markus Stockhausen
2026-08-17 17:03 ` Andrew Lunn
2026-08-17 17:29 ` AW: " Markus Stockhausen
2026-08-17 19:35 ` Andrew Lunn
2026-08-17 20:05 ` AW: " Markus Stockhausen
2026-08-17 20:10 ` Andrew Lunn
2026-08-17 20:25 ` Markus Stockhausen [this message]
2026-08-17 20:31 ` Andrew Lunn
2026-08-17 16:26 ` [PATCH net-next v14 11/13] net: mdio: realtek-rtl9300: Add support for RTL838x Markus Stockhausen
2026-08-17 16:26 ` [PATCH net-next v14 12/13] net: mdio: realtek-rtl9300: Add support for RTL839x Markus Stockhausen
2026-08-17 16:26 ` [PATCH net-next v14 13/13] net: mdio: realtek-rtl9300: reword Kconfig and module description Markus Stockhausen
2026-08-17 17:25 ` [PATCH net-next v14 00/13] net: mdio: realtek-rtl9300: Add RTL83xx support Jakub Kicinski
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