netdev - RE: [PATCH 3/6] drivers: net: ethernet: cpsw: add multicast address to ALE table

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Date:	Mon, 22 Oct 2012 10:46:14 +0000
From:	"N, Mugunthan V" <mugunthanvnm@...com>
To:	Richard Cochran <richardcochran@...il.com>
CC:	"netdev@...r.kernel.org" <netdev@...r.kernel.org>,
	"davem@...emloft.net" <davem@...emloft.net>
Subject: RE: [PATCH 3/6] drivers: net: ethernet: cpsw: add multicast address
 to ALE table

> -----Original Message-----
> From: Richard Cochran [mailto:richardcochran@...il.com]
> Sent: Sunday, October 21, 2012 4:56 PM
> To: N, Mugunthan V
> Cc: netdev@...r.kernel.org; davem@...emloft.net
> Subject: Re: [PATCH 3/6] drivers: net: ethernet: cpsw: add multicast
> address to ALE table
> 
> On Wed, Oct 17, 2012 at 04:15:15AM +0530, Mugunthan V N wrote:
> > @@ -271,6 +273,30 @@ struct cpsw_priv {
> >  			(func)((priv)->slaves + idx, ##arg);	\
> >  	} while (0)
> >
> > +static void cpsw_ndo_set_rx_mode(struct net_device *ndev)
> > +{
> > +	struct cpsw_priv *priv = netdev_priv(ndev);
> > +
> > +	if (ndev->flags & IFF_PROMISC) {
> > +		/* Enable promiscuous mode */
> > +		dev_err(priv->dev, "Ignoring Promiscuous mode\n");
> > +		return;
> 
> Why can't we support promiscuous mode here?
> 

To support promiscuous mode, ALE has to be disabled and but this will
lead to disabling Switch functionality in hardware. So this is not
implemented as of now, It is under development.

Regards
Mugunthan V N
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