linux-kernel - Re: [PATCH net-next] net: dsa: add cross-chip multicast support

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Message-Id: <20170616.152154.1388838024873603347.davem@davemloft.net>
Date:   Fri, 16 Jun 2017 15:21:54 -0400 (EDT)
From:   David Miller <davem@...emloft.net>
To:     vivien.didelot@...oirfairelinux.com
Cc:     netdev@...r.kernel.org, linux-kernel@...r.kernel.org,
        kernel@...oirfairelinux.com, f.fainelli@...il.com, andrew@...n.ch,
        jcobham@...stertangent.com
Subject: Re: [PATCH net-next] net: dsa: add cross-chip multicast support

From: Vivien Didelot <vivien.didelot@...oirfairelinux.com>
Date: Thu, 15 Jun 2017 16:14:48 -0400

> Similarly to how cross-chip VLAN works, define a bitmap of multicast
> group members for a switch, now including its DSA ports, so that
> multicast traffic can be sent to all switches of the fabric.
> 
> A switch may drop the frames if no user port is a member.
> 
> This brings support for multicast in a multi-chip environment.
> As of now, all switches of the fabric must support the multicast
> operations in order to program a single fabric port.
> 
> Reported-by: Jason Cobham <jcobham@...stertangent.com>
> Signed-off-by: Vivien Didelot <vivien.didelot@...oirfairelinux.com>

Applied, thanks Vivien.