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From: Jakub Kicinski <kuba@kernel.org>
To: Aleksander Jan Bajkowski <olek2@wp.pl>
Cc: Petr Wozniak <petr.wozniak@gmail.com>,
	Russell King <linux@armlinux.org.uk>,
	Andrew Lunn <andrew@lunn.ch>,
	Heiner Kallweit <hkallweit1@gmail.com>,
	"David S . Miller" <davem@davemloft.net>,
	Eric Dumazet <edumazet@google.com>,
	Paolo Abeni <pabeni@redhat.com>,
	netdev@vger.kernel.org, linux-kernel@vger.kernel.org,
	linux-phy@lists.infradead.org,
	Maxime Chevallier <maxime.chevallier@bootlin.com>,
	Bjorn Mork <bjorn@mork.no>, Marek Behun <kabel@kernel.org>
Subject: Re: [PATCH net v4 2/2] net: phy: mdio-i2c: defer RollBall bridge probe to PHY discovery
Date: Thu, 25 Jun 2026 08:23:35 -0700	[thread overview]
Message-ID: <20260625082335.3d13d875@kernel.org> (raw)
In-Reply-To: <9f813a8e-8b9a-4708-b3b6-db4972adac35@wp.pl>

On Wed, 24 Jun 2026 23:44:19 +0200 Aleksander Jan Bajkowski wrote:
> > For genuine RollBall modules (e.g. FLYPRO SFP-10GT-CS-30M with Aquantia
> > AQR113C) the probe now runs after initialization is complete and
> > correctly returns 0, so PHY detection proceeds normally.  
> The FLPRO SFP module still fails to detect the PHY. It is necessary to
> increase `module_t_wait` to 20 seconds. Most likely, during this time
> the module loads the PHY firmware from SPI memory or from the
> microcontroller (rollball bridge) via MDIO. Same probably applies to
> most SFP modules with a PHY that load firmware at start-up (AQR113,
> RTL8261C etc.).

Just to clarify is FLPRO a typo or a knock off ?
Do you want something to be changed here or you're just flagging that
more follow ups are needed if we want to cover more modules?

WARNING: multiple messages have this Message-ID (diff)
From: Jakub Kicinski <kuba@kernel.org>
To: Aleksander Jan Bajkowski <olek2@wp.pl>
Cc: Petr Wozniak <petr.wozniak@gmail.com>,
	Russell King <linux@armlinux.org.uk>,
	Andrew Lunn <andrew@lunn.ch>,
	Heiner Kallweit <hkallweit1@gmail.com>,
	"David S . Miller" <davem@davemloft.net>,
	Eric Dumazet <edumazet@google.com>,
	Paolo Abeni <pabeni@redhat.com>,
	netdev@vger.kernel.org, linux-kernel@vger.kernel.org,
	linux-phy@lists.infradead.org,
	Maxime Chevallier <maxime.chevallier@bootlin.com>,
	Bjorn Mork <bjorn@mork.no>, Marek Behun <kabel@kernel.org>
Subject: Re: [PATCH net v4 2/2] net: phy: mdio-i2c: defer RollBall bridge probe to PHY discovery
Date: Thu, 25 Jun 2026 08:23:35 -0700	[thread overview]
Message-ID: <20260625082335.3d13d875@kernel.org> (raw)
In-Reply-To: <9f813a8e-8b9a-4708-b3b6-db4972adac35@wp.pl>

On Wed, 24 Jun 2026 23:44:19 +0200 Aleksander Jan Bajkowski wrote:
> > For genuine RollBall modules (e.g. FLYPRO SFP-10GT-CS-30M with Aquantia
> > AQR113C) the probe now runs after initialization is complete and
> > correctly returns 0, so PHY detection proceeds normally.  
> The FLPRO SFP module still fails to detect the PHY. It is necessary to
> increase `module_t_wait` to 20 seconds. Most likely, during this time
> the module loads the PHY firmware from SPI memory or from the
> microcontroller (rollball bridge) via MDIO. Same probably applies to
> most SFP modules with a PHY that load firmware at start-up (AQR113,
> RTL8261C etc.).

Just to clarify is FLPRO a typo or a knock off ?
Do you want something to be changed here or you're just flagging that
more follow ups are needed if we want to cover more modules?

-- 
linux-phy mailing list
linux-phy@lists.infradead.org
https://lists.infradead.org/mailman/listinfo/linux-phy

  reply	other threads:[~2026-06-25 15:23 UTC|newest]

Thread overview: 17+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2026-06-24  8:48 [PATCH net v4 0/2] net: phy: sfp/mdio-i2c: defer RollBall probe + fix mii_bus leak Petr Wozniak
2026-06-24  8:48 ` Petr Wozniak
2026-06-24  8:48 ` [PATCH net v4 1/2] net: phy: sfp: free mii_bus in sfp_i2c_mdiobus_destroy Petr Wozniak
2026-06-24  8:48   ` Petr Wozniak
2026-06-26 12:05   ` Larysa Zaremba
2026-06-26 12:05     ` Larysa Zaremba
2026-06-24  8:48 ` [PATCH net v4 2/2] net: phy: mdio-i2c: defer RollBall bridge probe to PHY discovery Petr Wozniak
2026-06-24  8:48   ` Petr Wozniak
2026-06-24 21:44   ` Aleksander Jan Bajkowski
2026-06-24 21:44     ` Aleksander Jan Bajkowski
2026-06-25 15:23     ` Jakub Kicinski [this message]
2026-06-25 15:23       ` Jakub Kicinski
2026-06-25  8:48   ` sashiko-bot
2026-06-26 15:10   ` Maxime Chevallier
2026-06-26 15:10     ` Maxime Chevallier
2026-06-26 16:35   ` Petr Wozniak
2026-06-26 16:35     ` Petr Wozniak

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