linux-kernel - Re: [PATCH net] net: phy: micrel: lan8814 fix reset of the QSGMII interface

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Message-ID: <98bbc307-a61a-4297-85fa-1ff3a71c9039@lunn.ch>
Date: Thu, 6 Nov 2025 14:21:47 +0100
From: Andrew Lunn <andrew@...n.ch>
To: Horatiu Vultur <horatiu.vultur@...rochip.com>
Cc: hkallweit1@...il.com, linux@...linux.org.uk, davem@...emloft.net,
	edumazet@...gle.com, kuba@...nel.org, pabeni@...hat.com,
	Divya.Koppera@...rochip.com, netdev@...r.kernel.org,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH net] net: phy: micrel: lan8814 fix reset of the QSGMII
 interface

On Thu, Nov 06, 2025 at 10:06:37AM +0100, Horatiu Vultur wrote:
> The lan8814 is a quad-phy and it is using QSGMII towards the MAC.
> The problem is that everytime when one of the ports is configured then
> the PCS is reseted for all the PHYs. Meaning that the other ports can
> loose traffic until the link is establish again.
> To fix this, do the reset one time for the entire PHY package.
> 
> Fixes: ece19502834d ("net: phy: micrel: 1588 support for LAN8814 phy")
> Signed-off-by: Horatiu Vultur <horatiu.vultur@...rochip.com>

Reviewed-by: Andrew Lunn <andrew@...n.ch>

    Andrew