netdev - Re: [PATCH net] net: dsa: mv88e6xxx: Enable IGMP snooping on user ports only

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Message-ID: <e81dae2b-654b-4922-afd8-255be4b92a7a@lunn.ch>
Date:   Wed, 29 Mar 2023 17:12:07 +0200
From:   Andrew Lunn <andrew@...n.ch>
To:     Fabio Estevam <festevam@...il.com>
Cc:     kuba@...nel.org, olteanv@...il.com, netdev@...r.kernel.org,
        steffen@...osonix.de, Fabio Estevam <festevam@...x.de>
Subject: Re: [PATCH net] net: dsa: mv88e6xxx: Enable IGMP snooping on user
 ports only

On Wed, Mar 29, 2023 at 12:01:40PM -0300, Fabio Estevam wrote:
> From: Steffen Bätz <steffen@...osonix.de>
> 
> Do not set the MV88E6XXX_PORT_CTL0_IGMP_MLD_SNOOP bit on CPU or DSA ports.
> 
> This allows the host CPU port to be a regular IGMP listener by sending out
> IGMP Membership Reports, which would otherwise not be forwarded by the
> mv88exxx chip, but directly looped back to the CPU port itself.
> 
> Fixes: 54d792f257c6 ("net: dsa: Centralise global and port setup code into mv88e6xxx.")
> Signed-off-by: Steffen Bätz <steffen@...osonix.de>
> Signed-off-by: Fabio Estevam <festevam@...x.de>

Reviewed-by: Andrew Lunn <andrew@...n.ch>

    Andrew