netdev - Re: [PATCH net-next 5/5] rocker: remove support for legacy VLAN ndo ops

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Message-ID: <556D5197.2070300@lab.ntt.co.jp>
Date:	Tue, 02 Jun 2015 15:47:51 +0900
From:	Toshiaki Makita <makita.toshiaki@....ntt.co.jp>
To:	David Miller <davem@...emloft.net>
CC:	sfeldma@...il.com, netdev@...r.kernel.org, jiri@...nulli.us,
	simon.horman@...ronome.com
Subject: Re: [PATCH net-next 5/5] rocker: remove support for legacy VLAN ndo
 ops

On 2015/06/02 14:24, David Miller wrote:
> From: Toshiaki Makita <makita.toshiaki@....ntt.co.jp>
> Date: Tue, 02 Jun 2015 13:51:06 +0900
> 
>> On 2015/06/02 3:39, sfeldma@...il.com wrote:
>>> From: Scott Feldman <sfeldma@...il.com>
>>>
>>> Remove support for legacy ndo ops
>>> .ndo_vlan_rx_add_vid/.ndo_vlan_rx_kill_vid.  Rocker will use
>>> bridge_setlink/dellink exclusively for VLAN add/del operations.
>>>
>>> The legacy ops are needed if using 8021q driver module to setup VLANs on
>>> the port.  But an alternative exists in using bridge_setlink/delink to
>>> setup VLANs, which doesn't depend on 8021q module.  So rocker will switch
>>> to the newer setlink/dellink ops.  VLANs can added/delete from the port,
>>> regardless if port is bridged or not, using the bridge commands:
>>>
>>> 	bridge vlan [add|del] vid VID dev DEV self
>>
>> Hi Scott,
>>
>> This doesn't look transparent with bridge.
>>
>> Before this patch, I was able to add vid in the same way as software bridge:
>>
>>   ip link set DEV master br0
>>   bridge vlan add vid VID dev DEV
>>
>> Now I need to add "self", which is different from software bridge...
> 
> I'm already not liking the looks of this....

I thought one of purposes of implementing ndo_vlan_rx_add_vid() is to
make "bridge vlan add (master)" for bridged-ports work like software
bridges. Sorry if I misunderstood.

Toshiaki Makita

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