linux-kernel - Re: [PATCH v2 1/6] net: ocelot: add support to get port mac from device-tree

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Date:   Mon, 15 Nov 2021 12:24:32 +0100
From:   Clément Léger <clement.leger@...tlin.com>
To:     Julian Wiedmann <jwi@...ux.ibm.com>
Cc:     "David S. Miller" <davem@...emloft.net>,
        Jakub Kicinski <kuba@...nel.org>,
        Rob Herring <robh+dt@...nel.org>,
        Vladimir Oltean <vladimir.oltean@....com>,
        Claudiu Manoil <claudiu.manoil@....com>,
        Alexandre Belloni <alexandre.belloni@...tlin.com>,
        UNGLinuxDriver@...rochip.com, Andrew Lunn <andrew@...n.ch>,
        netdev@...r.kernel.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org,
        Thomas Petazzoni <thomas.petazzoni@...tlin.com>
Subject: Re: [PATCH v2 1/6] net: ocelot: add support to get port mac from
 device-tree

Le Mon, 15 Nov 2021 13:19:49 +0200,
Julian Wiedmann <jwi@...ux.ibm.com> a écrit :

> On 03.11.21 11:19, Clément Léger wrote:
> > Add support to get mac from device-tree using of_get_mac_address.
> > 
> > Signed-off-by: Clément Léger <clement.leger@...tlin.com>
> > ---
> >  drivers/net/ethernet/mscc/ocelot_net.c | 5 ++++-
> >  1 file changed, 4 insertions(+), 1 deletion(-)
> > 
> > diff --git a/drivers/net/ethernet/mscc/ocelot_net.c b/drivers/net/ethernet/mscc/ocelot_net.c
> > index eaeba60b1bba..d76def435b23 100644
> > --- a/drivers/net/ethernet/mscc/ocelot_net.c
> > +++ b/drivers/net/ethernet/mscc/ocelot_net.c
> > @@ -1704,7 +1704,10 @@ int ocelot_probe_port(struct ocelot *ocelot, int port, struct regmap *target,
> >  		NETIF_F_HW_TC;
> >  	dev->features |= NETIF_F_HW_VLAN_CTAG_FILTER | NETIF_F_HW_TC;
> >  
> > -	eth_hw_addr_gen(dev, ocelot->base_mac, port);
> > +	err = of_get_mac_address(portnp, dev->dev_addr);  
> 
> of_get_ethdev_address() maybe, so that this gets routed through Jakub's fancy
> new eth_hw_addr_set() infrastructure?

Hi Julian,

Acked, I will use that.

> 
> > +	if (err)
> > +		eth_hw_addr_gen(dev, ocelot->base_mac, port);
> > +
> >  	ocelot_mact_learn(ocelot, PGID_CPU, dev->dev_addr,
> >  			  OCELOT_VLAN_UNAWARE_PVID, ENTRYTYPE_LOCKED);
> >  
> >   
> 



-- 
Clément Léger,
Embedded Linux and Kernel engineer at Bootlin
https://bootlin.com