linux-kernel - Re: [PATCH v2 3/4] arm64: dts: ti: k3-am654-idk: Add ICSSG Ethernet ports

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Message-ID: <a39316d6-8804-4dc4-b5d8-a2dfd82b972e@lunn.ch>
Date:   Thu, 21 Sep 2023 18:14:44 +0200
From:   Andrew Lunn <andrew@...n.ch>
To:     MD Danish Anwar <danishanwar@...com>
Cc:     Vignesh Raghavendra <vigneshr@...com>, Nishanth Menon <nm@...com>,
        afd@...com, Conor Dooley <conor+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Rob Herring <robh+dt@...nel.org>,
        Tero Kristo <kristo@...nel.org>, linux-kernel@...r.kernel.org,
        devicetree@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
        srk@...com, r-gunasekaran@...com
Subject: Re: [PATCH v2 3/4] arm64: dts: ti: k3-am654-idk: Add ICSSG Ethernet
 ports

> +	/* Dual Ethernet application node on PRU-ICSSG0 */
> +	/* Dual Ethernet application node on PRU-ICSSG1 */

Not relevant to this patch, but to the ongoing discussions around
adding switchdev support.

Are these two PRU-ICSSG instances completely separate? It is
physically impossible to combine these four ethernet ports in one
acceleration domain? It will always be two separate switches, and if
frames need to go from one switch to the other it happens in software?

       Andrew