From mboxrd@z Thu Jan 1 00:00:00 1970 Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.remote-ip=156.67.10.101 ARC-Seal: i=1; d=subspace.kernel.org; s=arc20261015; a=rsa-sha256; cv=none; t=1793153093; b=114KwsedMP3vhWZaCQH7szn6JWVYEiJHQ1rQkGjBrzn7+9belYtg7PGNf4tuNOqJlJdm lGvdrF2q9dNduwgHF8VXOIWWnLZ0EibXPmbfO4H5UKMRSBC9avhPqbAYC+oevIY4xvdm9 tswyImjvzdtfyg2IOTDcX6GRH5irC9xN39EUvAktmsV2lnQgBuBYxzDe3Ry/mN7pS9R6T CrA7rjKHXYcUepAE2QjQ1zsvqAN3/02A7iEBcRJaFlKYdsKYUuQ+BoLRMaE+gxmzQtfy1 J2fzhPgj9KOqR90B3RoQHta3kK6gYE0gdzTuSZKNMD2TzEZ6UvJ6y3wD0yU+WsSBZhg== ARC-Message-Signature: i=1; d=subspace.kernel.org; s=arc20261015; a=rsa-sha256; c=relaxed/relaxed; t=1793153093; h=DMARC-Filter:DKIM-Signature:Received:Date:From:To:Cc:Subject: Message-ID:References:MIME-Version:Content-Type:Content-Disposition: In-Reply-To; bh=B2dbDPohrwxKAwssPy3BtXvVXxGswtl67OL+peXJlOw=; b=NcGQWp5jYj5Ruh+JN5cDXeJKavyAgoqSZ73Aw8gh0fQTd9kAJ+b1RJjRrANGN2M33eha kCmiPhPfQodvH73VUXunLPQ6bAGywa3Orvg6x2p9gFVgTgL4Ma2yriItga+9jb/V+remf sTc8/atlwsmUJCNLLZzVGkRNWCETOfftjVbPHT48BsvgPv5uQ0FKNa1lYQOKdzBvLZDGy LASDMEpuwb1dllxSaTt+voHyUZmi/FAUMIROEh4VO0QR93wfZwppSW7L+Fc5T/zpH611U qT7k//b0iT+GP0iFQSV5aBYddM2vH19sYHADov02qsLWHHh+HyRtRXwZiS0ePKCM4Hg== ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass header.from=lunn.ch; spf=pass smtp.mailfrom=lunn.ch; dkim=pass header.d=lunn.ch header.i=@lunn.ch header.a=rsa-sha256 header.s=20171124 header.b=5x8cAJ7L; arc=none smtp.remote-ip=156.67.10.101 Received: from vps0.lunn.ch (vps0.lunn.ch [156.67.10.101]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange ECDHE (prime256v1) server-signature ECDSA (prime256v1) server-digest SHA256) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 2FD8B606A31A; Wed, 28 Oct 2026 02:04:52 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.4.2 smtp.subspace.kernel.org 2FD8B606A31A Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=lunn.ch Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=lunn.ch Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key, unprotected) header.d=lunn.ch header.i=@lunn.ch header.a=rsa-sha256 header.s=20171124 header.b=5x8cAJ7L DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lunn.ch; s=20171124; h=In-Reply-To:Content-Disposition:Content-Type:MIME-Version: References:Message-ID:Subject:Cc:To:From:Date:From:Sender:Reply-To:Subject: Date:Message-ID:To:Cc:MIME-Version:Content-Type:Content-Transfer-Encoding: Content-ID:Content-Description:Content-Disposition:In-Reply-To:References; bh=B2dbDPohrwxKAwssPy3BtXvVXxGswtl67OL+peXJlOw=; b=5x8cAJ7LZHUnDKePmgwZ20M/j7 hn+Nb0k8uUqZHRbyWaRzScZ3ohhWxC40WHQ+04V/gsEzMtmnWa2VZeNku0lHlB0L/rppedXTKNBHe gxR1um6VYW1zj/Ok1qxCZnxpDkzJRSb7sbdHcqPKrvjfM/P/cXQIxpWSjzlSvujBo6DQ=; Received: from andrew by vps0.lunn.ch with local (Exim 4.94.2) (envelope-from ) id 1xLt1b-00D2jJ-0N; Wed, 28 Oct 2026 03:04:23 +0100 Date: Wed, 28 Oct 2026 03:04:22 +0100 From: Andrew Lunn To: Caleb James DeLisle Cc: netdev@vger.kernel.org, olteanv@gmail.com, davem@davemloft.net, edumazet@google.com, kuba@kernel.org, pabeni@redhat.com, robh@kernel.org, krzk+dt@kernel.org, conor+dt@kernel.org, matthias.bgg@gmail.com, angelogioacchino.delregno@collabora.com, chester.a.unal@arinc9.com, daniel@makrotopia.org, linux@armlinux.org.uk, arinc.unal@arinc9.com, Landen.Chao@mediatek.com, dqfext@gmail.com, sean.wang@mediatek.com, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-mediatek@lists.infradead.org, naseefkm@gmail.com, b.larsson@gmx.com Subject: Re: [PATCH v3 2/7] dt-bindings: net: dsa: mediatek,mt7530: add passthrough mode Message-ID: References: <20261028011317.1557238-1-cjd@cjdns.fr> <20261028011317.1557238-3-cjd@cjdns.fr> X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Post: List-Help: List-Subscribe: List-Unsubscribe: List-Owner: Precedence: list MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20261028011317.1557238-3-cjd@cjdns.fr> On Wed, Oct 28, 2026 at 01:13:12AM +0000, Caleb James DeLisle wrote: > MT7530 switches can be configured to blindly pass packets between their > CPU/upstream port and a downstream DSA port, in particular, without > altering the MediaTek DSA Tag on the packets. This mode is used in some > integrations where an SoC integrated switch exists, but a more capable > MCM switch is added to effectively replace it. > > Signed-off-by: Caleb James DeLisle > Acked-by: Rob Herring (Arm) > --- > .../devicetree/bindings/net/dsa/mediatek,mt7530.yaml | 7 +++++++ > 1 file changed, 7 insertions(+) > > diff --git a/Documentation/devicetree/bindings/net/dsa/mediatek,mt7530.yaml b/Documentation/devicetree/bindings/net/dsa/mediatek,mt7530.yaml > index 90b3582b7619..e29fb8693498 100644 > --- a/Documentation/devicetree/bindings/net/dsa/mediatek,mt7530.yaml > +++ b/Documentation/devicetree/bindings/net/dsa/mediatek,mt7530.yaml > @@ -73,6 +73,13 @@ description: | > > Check out example 7. > > + The MT7530 and MT7531 switches are capable of being operated in "passthrough" > + mode. In this mode, traffic is unconditionally passed between the CPU port > + and the DSA port which links to a second switch. To use passthrough mode, the > + upstream switch is configured with a DSA link to the downstream switch. In > + passthrough mode the upstream switch is restricted, with no other ports or > + switch configuration allowed. > + > properties: > compatible: > oneOf: Looking at just what is here, all i see is a comment. There is no new property? Yet the subject is "add passthrough mode"? Andrew