netdev - Re: [PATCH net-next] net: mvneta: Fix validation of 2.5G HSGMII without comphy

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Message-ID: <20201115094827.74eacbc3@kernel.org>
Date:   Sun, 15 Nov 2020 09:48:27 +0100
From:   Marek Behún <kabel@...nel.org>
To:     Andreas Färber <afaerber@...e.de>
Cc:     "David S . Miller" <davem@...emloft.net>,
        Thomas Petazzoni <thomas.petazzoni@...tlin.com>,
        Uwe Kleine-König <uwe@...ine-koenig.org>,
        Michal Hrusecki <Michal.Hrusecky@....cz>,
        Tomas Hlavacek <tomas.hlavacek@....cz>,
        Bedřicha Košatu <bedrich.kosata@....cz>,
        Sascha Hauer <s.hauer@...gutronix.de>,
        Andrew Lunn <andrew@...n.ch>,
        Jason Cooper <jason@...edaemon.net>,
        Gregory CLEMENT <gregory.clement@...tlin.com>,
        Jakub Kicinski <kuba@...nel.org>,
        Russell King <linux@...linux.org.uk>, netdev@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH net-next] net: mvneta: Fix validation of 2.5G HSGMII
 without comphy

On Sun, 15 Nov 2020 01:41:51 +0100
Andreas Färber <afaerber@...e.de> wrote:

> -	if (pp->comphy || state->interface == PHY_INTERFACE_MODE_2500BASEX) {
> +	if (pp->comphy || state->interface == PHY_INTERFACE_MODE_2500BASEX
> +		       || state->interface == PHY_INTERFACE_MODE_NA) {
>  		phylink_set(mask, 2500baseT_Full);
>  		phylink_set(mask, 2500baseX_Full);
>  	}

No, this will cause, on systems without comphy described, phylink to
think that 2500baseX/T is possible. But without comphy how can it be
configured?

Marek