netdev - Re: [patch net-next v2 10/10] rocker: implement L2 bridge offloading

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Date:	Mon, 10 Nov 2014 09:18:26 +0100
From:	Jiri Pirko <jiri@...nulli.us>
To:	Jamal Hadi Salim <jhs@...atatu.com>
Cc:	netdev@...r.kernel.org, davem@...emloft.net, nhorman@...driver.com,
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	bcrl@...ck.org
Subject: Re: [patch net-next v2 10/10] rocker: implement L2 bridge offloading

Mon, Nov 10, 2014 at 04:53:07AM CET, jhs@...atatu.com wrote:
>On 11/09/14 05:51, Jiri Pirko wrote:
>>From: Scott Feldman <sfeldma@...il.com>
>>
>>Add L2 bridge offloading support to rocker driver.  Here, the Linux bridge
>>driver is used to collect swdev ports into a tagged (or untagged) VLAN
>>bridge.  The swdev will offload from the bridge driver the following L2
>>bridging functions:
>>
>>  - Learning of neighbor MAC addresses on VLAN X  Learned mac/vlan is
>>installed in bridge FDB.  (And removed when device unlearns mac/vlan).
>>Learning must be turned off on each bridge port to disable the feature in
>>the bridge driver.
>>
>
>I have quiet a few use cases where the above is a no-no. I dont want
>learning of any sort (we have a knob for that in the bridge).

I would love to see your code. Please do share.

>And i dont want learning in hardware to be reflected in software.
>Basically this is a policy decision. Introduce a knob to choose whether
>hardware learnt addresses should be reflected in software.

This can be easily done as a bridge option I believe. If you are ok with
that, I will add a patch (either in re-post or as a follow-up)

>
>
>Have to run, but will comment when i get the time.
>
>cheers,
>jamal
>
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