linux-kernel - Re: [PATCH net-next 06/12] net: ethtool: Add PSE new port priority support feature

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Message-ID: <ZwVeXPqUuv-xatgR@pengutronix.de>
Date: Tue, 8 Oct 2024 18:31:24 +0200
From: Oleksij Rempel <o.rempel@...gutronix.de>
To: Kory Maincent <kory.maincent@...tlin.com>
Cc: "David S. Miller" <davem@...emloft.net>,
	Eric Dumazet <edumazet@...gle.com>,
	Jakub Kicinski <kuba@...nel.org>, Paolo Abeni <pabeni@...hat.com>,
	Jonathan Corbet <corbet@....net>,
	Donald Hunter <donald.hunter@...il.com>,
	Thomas Petazzoni <thomas.petazzoni@...tlin.com>,
	linux-kernel@...r.kernel.org, netdev@...r.kernel.org,
	linux-doc@...r.kernel.org, Kyle Swenson <kyle.swenson@....tech>,
	Dent Project <dentproject@...uxfoundation.org>,
	kernel@...gutronix.de
Subject: Re: [PATCH net-next 06/12] net: ethtool: Add PSE new port priority
 support feature

On Wed, Oct 02, 2024 at 06:28:02PM +0200, Kory Maincent wrote:
> From: Kory Maincent (Dent Project) <kory.maincent@...tlin.com>
...
>  PSE_SET
>  =======
>  
> @@ -1849,6 +1859,8 @@ Request contents:
>    ``ETHTOOL_A_C33_PSE_ADMIN_CONTROL``        u32  Control PSE Admin state
>    ``ETHTOOL_A_C33_PSE_AVAIL_PWR_LIMIT``      u32  Control PoE PSE available
>                                                    power limit
> +  ``ETHTOOL_A_C33_PSE_PRIO``                 u32  Control priority of the
> +                                                  PoE PSE
>    ======================================  ======  =============================
>  
>  When set, the optional ``ETHTOOL_A_PODL_PSE_ADMIN_CONTROL`` attribute is used
> @@ -1871,6 +1883,10 @@ various existing products that document power consumption in watts rather than
>  classes. If power limit configuration based on classes is needed, the
>  conversion can be done in user space, for example by ethtool.
>  
> +When set, the optional ``ETHTOOL_A_C33_PSE_PRIO`` attributes is used to
> +control the C33 PSE priority. Allowed priority value are between zero
> +and the value of ``ETHTOOL_A_C33_PSE_PRIO_MAX`` attribute.
 
Please extend the documentation with expected system behavior: the
meaning of lowest and highest values, power up and shutdown behaviors,
etc.

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