linux-kernel - Re: [PATCH v5 net-next 07/10] net: dsa: felix: restore multicast flood to CPU when NPI tagger reinitializes

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Date:   Fri, 12 Feb 2021 10:12:34 -0800
From:   Florian Fainelli <f.fainelli@...il.com>
To:     Vladimir Oltean <olteanv@...il.com>,
        Jakub Kicinski <kuba@...nel.org>,
        "David S. Miller" <davem@...emloft.net>
Cc:     Andrew Lunn <andrew@...n.ch>,
        Vivien Didelot <vivien.didelot@...il.com>,
        netdev@...r.kernel.org, linux-kernel@...r.kernel.org,
        bridge@...ts.linux-foundation.org, Roopa Prabhu <roopa@...dia.com>,
        Nikolay Aleksandrov <nikolay@...dia.com>,
        Jiri Pirko <jiri@...nulli.us>,
        Ido Schimmel <idosch@...sch.org>,
        Claudiu Manoil <claudiu.manoil@....com>,
        Alexandre Belloni <alexandre.belloni@...tlin.com>,
        UNGLinuxDriver@...rochip.com, Vadym Kochan <vkochan@...vell.com>,
        Taras Chornyi <tchornyi@...vell.com>,
        Grygorii Strashko <grygorii.strashko@...com>,
        Vignesh Raghavendra <vigneshr@...com>,
        Ioana Ciornei <ioana.ciornei@....com>,
        Ivan Vecera <ivecera@...hat.com>, linux-omap@...r.kernel.org
Subject: Re: [PATCH v5 net-next 07/10] net: dsa: felix: restore multicast
 flood to CPU when NPI tagger reinitializes



On 2/12/2021 7:15 AM, Vladimir Oltean wrote:
> From: Vladimir Oltean <vladimir.oltean@....com>
> 
> ocelot_init sets up PGID_MC to include the CPU port module, and that is
> fine, but the ocelot-8021q tagger removes the CPU port module from the
> unknown multicast replicator. So after a transition from the default
> ocelot tagger towards ocelot-8021q and then again towards ocelot,
> multicast flooding towards the CPU port module will be disabled.
> 
> Fixes: e21268efbe26 ("net: dsa: felix: perform switch setup for tag_8021q")
> Signed-off-by: Vladimir Oltean <vladimir.oltean@....com>

Reviewed-by: Florian Fainelli <f.fainelli@...il.com>
-- 
Florian