netdev - Re: [PATCH v2] bridge: dump mcast querier state per vlan

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Message-ID: <73539d7f-75a9-4f52-a95c-b2b1a608fe6d@pengutronix.de>
Date: Wed, 11 Jun 2025 14:26:34 +0200
From: Fabian Pfitzner <f.pfitzner@...gutronix.de>
To: Ido Schimmel <idosch@...dia.com>
Cc: netdev@...r.kernel.org, dsahern@...il.com,
 bridge@...ts.linux-foundation.org, entwicklung@...gutronix.de,
 razor@...ckwall.org
Subject: Re: [PATCH v2] bridge: dump mcast querier state per vlan

On 6/11/25 14:20, Ido Schimmel wrote:
> On Wed, Jun 11, 2025 at 02:11:52PM +0200, Fabian Pfitzner wrote:
>> Dump the multicast querier state per vlan.
>> This commit is almost identical to [1].
>>
>> The querier state can be seen with:
>>
>> bridge -d vlan global
>>
>> The options for vlan filtering and vlan mcast snooping have to be enabled
>> in order to see the output:
>>
>> ip link set [dev] type bridge mcast_vlan_snooping 1 vlan_filtering 1
>>
>> The querier state shows the following information for IPv4 and IPv6
>> respectively:
>>
>> 1) The ip address of the current querier in the network. This could be
>>     ourselves or an external querier.
>> 2) The port on which the querier was seen
>> 3) Querier timeout in seconds
>>
>> [1] https://git.kernel.org/pub/scm/network/iproute2/iproute2.git/commit/?id=16aa4494d7fc6543e5e92beb2ce01648b79f8fa2
>>
>> Signed-off-by: Fabian Pfitzner <f.pfitzner@...gutronix.de>
>> ---
>>
>> v1->v2
>> 	- refactor code
>> 	- link to v1: https://lore.kernel.org/netdev/20250604105322.1185872-1-f.pfitzner@pengutronix.de/
> Regarding your note on v1, there is a patch under review to add a bridge
> lib file:
>
> https://lore.kernel.org/netdev/8a4999a27c11934f75086354314269f295ee998a.1749567243.git.petrm@nvidia.com/
>
> Maybe wait until it's accepted and then submit v3 with a shared helper
> function?
Sounds good to me. I'll submit a v3 then.
>
-- 
Pengutronix e.K.                           | Fabian Pfitzner             |
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