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Date:   Sun, 3 Dec 2023 19:38:04 +0100
From:   Andrew Lunn <andrew@lunn.ch>
To:     Kory Maincent <kory.maincent@bootlin.com>
Cc:     "David S. Miller" <davem@davemloft.net>,
        Eric Dumazet <edumazet@google.com>,
        Jakub Kicinski <kuba@kernel.org>,
        Paolo Abeni <pabeni@redhat.com>,
        Jonathan Corbet <corbet@lwn.net>,
        Luis Chamberlain <mcgrof@kernel.org>,
        Russ Weight <russ.weight@linux.dev>,
        Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
        "Rafael J. Wysocki" <rafael@kernel.org>,
        Rob Herring <robh+dt@kernel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@linaro.org>,
        Conor Dooley <conor+dt@kernel.org>,
        Oleksij Rempel <o.rempel@pengutronix.de>,
        Thomas Petazzoni <thomas.petazzoni@bootlin.com>,
        netdev@vger.kernel.org, linux-kernel@vger.kernel.org,
        linux-doc@vger.kernel.org, devicetree@vger.kernel.org,
        Dent Project <dentproject@linuxfoundation.org>
Subject: Re: [PATCH net-next v2 3/8] net: pse-pd: Introduce PSE types
 enumeration
Message-ID: <69292ed5-63d3-4316-9bab-630bd00ce807@lunn.ch>
References: <20231201-feature_poe-v2-0-56d8cac607fa@bootlin.com>
 <20231201-feature_poe-v2-3-56d8cac607fa@bootlin.com>
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In-Reply-To: <20231201-feature_poe-v2-3-56d8cac607fa@bootlin.com>
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> +/**
> + * enum - Types of PSE controller.
> + *
> + * @PSE_UNKNOWN: Type of PSE controller is unknown
> + * @PSE_PODL: PSE controller which support PoDL
> + * @PSE_C33: PSE controller which support Clause 33 (PoE)
> + */
> +enum {
> +	PSE_UNKNOWN = BIT(0),
> +	PSE_PODL = BIT(1),
> +	PSE_C33 = BIT(2),
> +};

Maybe this should be in the netlink API?

I think you can imply it by looking at what properties are in the
netlink reply, but having it explicitly is probably better.
ethtool(1) can default to PSE_PODL if the property is missing for an
older kernel.

      Andrew