netdev - Re: [PATCH net-next 0/9] net: dsa: define port types

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Message-ID: <20171027193709.GA2385@lunn.ch>
Date:   Fri, 27 Oct 2017 21:37:09 +0200
From:   Andrew Lunn <andrew@...n.ch>
To:     Egil Hjelmeland <privat@...l-hjelmeland.no>
Cc:     netdev <netdev@...r.kernel.org>,
        Vivien Didelot <vivien.didelot@...oirfairelinux.com>,
        Florian Fainelli <f.fainelli@...il.com>,
        David Miller <davem@...emloft.net>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH net-next 0/9] net: dsa: define port types

On Fri, Oct 27, 2017 at 02:56:51PM +0200, Egil Hjelmeland wrote:
> > The DSA code currently has 3 bitmaps in the dsa_switch structure:
> > cpu_port_mask, dsa_port_mask and enabled_port_mask.
> 
> 
> Hi Vivien
> 
> First I must apologize to everybody for not replying in-thread. Problem
> is that I was not subscribed to netdev. But now I am, so I promise it
> will not happen again :-)
> 
> So to the point. I think DSA need to keep track of multicast
> memberships. As it is now, dsa_switch_mdb_add() include
> the CPU/DSA port(s) in the multicast. But  multicast is never
> removed from the CPU/DSA port(s).

Hi Egil

You should take a look at my patches from a few weeks back. I hope to
make another version next week. These deal with multicast on the CPU
port, or better said, the host wanting to receive a multicast group.

      Andrew