netdev - Re: [PATCH net-next] net: dsa: bcm_sf2: Implement FDB operations

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Date:	Fri, 23 Oct 2015 18:44:16 -0400
From:	Vivien Didelot <vivien.didelot@...oirfairelinux.com>
To:	Florian Fainelli <f.fainelli@...il.com>
Cc:	netdev@...r.kernel.org, davem@...emloft.net, jiri@...nulli.us,
	andrew@...n.ch, linux@...ck-us.net
Subject: Re: [PATCH net-next] net: dsa: bcm_sf2: Implement FDB operations

On Oct. Friday 23 (43) 01:20 PM, Florian Fainelli wrote:
> On 23/10/15 12:28, Vivien Didelot wrote:
> > On Oct. Friday 23 (43) 11:38 AM, Florian Fainelli wrote:
> >> +static int bcm_sf2_sw_fdb_del(struct dsa_switch *ds, int port,
> >> +			      const struct switchdev_obj_port_fdb *fdb)
> >> +{
> >> +	struct bcm_sf2_priv *priv = ds_to_priv(ds);
> >> +
> >> +	return bcm_sf2_arl_op(priv, 0, port, fdb->addr, fdb->vid, false);
> >> +}
> > 
> > I'm wondering if you are populating the FDB of the invalid VLAN 0 here.
> > 
> > Does your ARL consider that fdb->vid == 0 means "this port's FDB" and
> > not "FDB of VLAN 0"?
> 
> (please trim your replies)

Noted, thanks.

> I do not think this matters right now, since 802.1q is not currently
> enabled/supported in the driver, but maybe I am trivializing this?

I meant that, when you issue the following command:

    bridge fdb add de:ea:be:ef:12:34 dev swp3

you will get vid == 0 in bcm_sf2_sw_fdb_add(). So I was wondering if
your code was populating the FDB of the VLAN 0, instead of the choosen
FDB associated to the given port.

Thanks,
-v
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