netdev - Re: [PATCH net-next v2 11/12] net: phy: marvell10g: print exact model

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Message-ID: <20210325175629.7e670f34@thinkpad>
Date:   Thu, 25 Mar 2021 17:56:29 +0100
From:   Marek Behún <kabel@...nel.org>
To:     Russell King - ARM Linux admin <linux@...linux.org.uk>
Cc:     netdev@...r.kernel.org, Andrew Lunn <andrew@...n.ch>,
        "David S . Miller" <davem@...emloft.net>,
        Florian Fainelli <f.fainelli@...il.com>,
        Heiner Kallweit <hkallweit1@...il.com>, kuba@...nel.org
Subject: Re: [PATCH net-next v2 11/12] net: phy: marvell10g: print exact
 model

On Thu, 25 Mar 2021 15:54:52 +0000
Russell King - ARM Linux admin <linux@...linux.org.uk> wrote:

> On Thu, Mar 25, 2021 at 02:12:49PM +0100, Marek Behún wrote:
> > @@ -443,12 +446,24 @@ static int mv3310_probe(struct phy_device *phydev)
> >  
> >  	switch (phydev->drv->phy_id) {
> >  	case MARVELL_PHY_ID_88X3310:
> > +		ret = phy_read_mmd(phydev, MDIO_MMD_PMAPMD, MV_PMA_XGSTAT);
> > +		if (ret < 0)
> > +			return ret;
> > +
> > +		has_macsec = !(ret & MV_PMA_XGSTAT_NO_MACSEC);
> > +
> >  		if (nports == 4)
> >  			priv->model = MV_MODEL_88X3340;
> >  		else if (nports == 1)
> >  			priv->model = MV_MODEL_88X3310;
> >  		break;  
> 
> The 88X3310 and 88X3340 can be differentiated by bit 3 in the revision.
> In other words, 88X3310 is 0x09a0..0x09a7, and 88X3340 is
> 0x09a8..0x09af. We could add a separate driver structure, which would
> then allow the kernel to print a more specific string via standard
> methods, like we do for other PHYs. Not sure whether that would work
> for the 88X21x0 family though.

OK I will look into this. What are your thoughts on the other patches?

Marek