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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>,
	<mensi@mensi.ch>
Subject: AW: [PATCH net-next 6/8] net: mdio: realtek-rtl9300: relocate topology setup
Date: Tue, 2 Jun 2026 15:01:08 +0200	[thread overview]
Message-ID: <02b201dcf28f$e4794470$ad6bcd50$@gmx.de> (raw)
In-Reply-To: <d56efb0d-c288-43d5-b3c4-922a164fd29e@lunn.ch>

> Von: Andrew Lunn <andrew@lunn.ch> 
> Gesendet: Dienstag, 2. Juni 2026 14:24
> An: Markus Stockhausen <markus.stockhausen@gmx.de>
> Betreff: Re: [PATCH net-next 6/8] net: mdio: realtek-rtl9300: relocate
topology setup
> 
> On Tue, Jun 02, 2026 at 07:26:38AM +0200, Markus Stockhausen wrote:
> > Until now the driver sets up the port to bus/address topology of the
> > controller after all buses are set up via otto_emdio_probe_one(). This
> > does not work for devices where U-Boot skips this setup. It is not
> > only needed for the hardware internal background PHY polling engine
> > but essential for access to the PHYs during probing.
>
> Talking about polling, when do the locking issues around polling get
> solved? How many more patchsets before that appears?

This series relocates all hardware setup before bus registration.
- It avoids wrong PHY access before topology setup. 
- Side effect: setup does not interfere with concurrent bus reads/writes

With the next series I want to deactivate/activate hardware polling 
during the whole probing process (besides other things). This avoids
that hardware polling fills wrong MAC register states during
bus/PHY setup.

Are you thinking about this? If yes I can add that to this series.

Markus


  reply	other threads:[~2026-06-02 13:01 UTC|newest]

Thread overview: 28+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2026-06-02  5:26 [PATCH net-next 0/8] net: mdio: realtek-rtl9300: Refactor initialization and port lookup Markus Stockhausen
2026-06-02  5:26 ` [PATCH net-next 1/8] net: mdio: realtek-rtl9300: Convert to fwnode API Markus Stockhausen
2026-06-02 12:06   ` Andrew Lunn
2026-06-02 12:29     ` AW: " Markus Stockhausen
2026-06-02 12:50       ` Andrew Lunn
2026-06-02  5:26 ` [PATCH net-next 2/8] net: mdio: realtek-rtl9300: Correctly handle ethernet-phy-package Markus Stockhausen
2026-06-02  9:32   ` Jagielski, Jedrzej
2026-06-02 10:23     ` AW: " Markus Stockhausen
2026-06-02 11:22       ` Jagielski, Jedrzej
2026-06-02  5:26 ` [PATCH net-next 3/8] net: mdio: realtek-rtl9300: harden otto_emdio_map_ports() Markus Stockhausen
2026-06-02  9:38   ` Jagielski, Jedrzej
2026-06-02 10:42     ` AW: " Markus Stockhausen
2026-06-02 11:29       ` Jagielski, Jedrzej
2026-06-02 12:14   ` Andrew Lunn
2026-06-02  5:26 ` [PATCH net-next 4/8] net: mdio: realtek-rtl9300: harden otto_emdio_probe_one() Markus Stockhausen
2026-06-02  5:26 ` [PATCH net-next 5/8] net: mdio: realtek-rtl9300: adapt spaces for defines Markus Stockhausen
2026-06-02  9:42   ` Jagielski, Jedrzej
2026-06-02 10:18     ` AW: " Markus Stockhausen
2026-06-02 11:16       ` Jagielski, Jedrzej
2026-06-02 12:20   ` Andrew Lunn
2026-06-02  5:26 ` [PATCH net-next 6/8] net: mdio: realtek-rtl9300: relocate topology setup Markus Stockhausen
2026-06-02  9:50   ` Jagielski, Jedrzej
2026-06-02 10:50     ` AW: " Markus Stockhausen
2026-06-02 12:24   ` Andrew Lunn
2026-06-02 13:01     ` Markus Stockhausen [this message]
2026-06-02  5:26 ` [PATCH net-next 7/8] net: mdio: realtek-rtl9300: reorder controller setup Markus Stockhausen
2026-06-02  5:26 ` [PATCH net-next 8/8] net: mdio: realtek-rtl9300: Convert port lookup from O(n) to O(1) Markus Stockhausen
2026-06-02 12:30   ` Andrew Lunn

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