netdev - Re: [patch net-next 02/18] bridge: Export multicast enabled state

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Date:   Fri, 26 May 2017 11:56:24 +0300
From:   Nikolay Aleksandrov <nikolay@...ulusnetworks.com>
To:     Jiri Pirko <jiri@...nulli.us>, netdev@...r.kernel.org
Cc:     davem@...emloft.net, idosch@...lanox.com, mlxsw@...lanox.com,
        stephen@...workplumber.org
Subject: Re: [patch net-next 02/18] bridge: Export multicast enabled state

On 5/26/17 9:37 AM, Jiri Pirko wrote:
> From: Ido Schimmel <idosch@...lanox.com>
> 
> During enslavement to a bridge, after the CHANGEUPPER is sent, the
> multicast enabled state of the bridge isn't propagated down to the
> offloading driver unless it's changed.
> 
> This patch allows such drivers to query the multicast enabled state from
> the bridge, so that they'll be able to correctly configure their flood
> tables during port enslavement.
> 
> In case multicast is disabled, unregistered multicast packets can be
> treated as broadcast and be flooded through all the bridge ports.
> 
> Signed-off-by: Ido Schimmel <idosch@...lanox.com>
> Signed-off-by: Jiri Pirko <jiri@...lanox.com>
> ---
>   include/linux/if_bridge.h | 5 +++++
>   net/bridge/br_multicast.c | 8 ++++++++
>   2 files changed, 13 insertions(+)
> 

Reviewed-by: Nikolay Aleksandrov <nikolay@...ulusnetworks.com>