linux-kernel - Re: [PATCH net-next v10 2/5] net: phy: introduce PHY_INTERFACE_MODE

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Message-ID: <aM5pB-c-AR_E4U8k@shell.armlinux.org.uk>
Date: Sat, 20 Sep 2025 09:42:47 +0100
From: "Russell King (Oracle)" <linux@...linux.org.uk>
To: David Yang <mmyangfl@...il.com>
Cc: netdev@...r.kernel.org, Andrew Lunn <andrew@...n.ch>,
	Vladimir Oltean <olteanv@...il.com>,
	"David S. Miller" <davem@...emloft.net>,
	Eric Dumazet <edumazet@...gle.com>,
	Jakub Kicinski <kuba@...nel.org>, Paolo Abeni <pabeni@...hat.com>,
	Rob Herring <robh@...nel.org>,
	Krzysztof Kozlowski <krzk+dt@...nel.org>,
	Conor Dooley <conor+dt@...nel.org>,
	Heiner Kallweit <hkallweit1@...il.com>,
	Simon Horman <horms@...nel.org>, devicetree@...r.kernel.org,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH net-next v10 2/5] net: phy: introduce
 PHY_INTERFACE_MODE_REVSGMII

On Fri, Sep 19, 2025 at 05:42:27PM +0800, David Yang wrote:
> The "reverse SGMII" protocol name is a personal invention, derived from
> "reverse MII" and "reverse RMII", this means: "behave like an SGMII
> PHY".
> 
> Signed-off-by: David Yang <mmyangfl@...il.com>

Thanks. This is also going to be needed for stmmac, which can operate in
SGMII mode acting as if it were a PHY to allow a SGMII MAC-to-MAC
connection to be established.

As noted by the kernel build bot, there are several other locations that
need to be updated whenever a new phy interface is added.

Thanks.

-- 
RMK's Patch system: https://www.armlinux.org.uk/developer/patches/
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