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

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <20141110081826.GE1850@nanopsycho.orion>
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,
	andy@...yhouse.net, tgraf@...g.ch, dborkman@...hat.com,
	ogerlitz@...lanox.com, jesse@...ira.com, pshelar@...ira.com,
	azhou@...ira.com, ben@...adent.org.uk, stephen@...workplumber.org,
	jeffrey.t.kirsher@...el.com, vyasevic@...hat.com,
	xiyou.wangcong@...il.com, john.r.fastabend@...el.com,
	edumazet@...gle.com, sfeldma@...il.com, f.fainelli@...il.com,
	roopa@...ulusnetworks.com, linville@...driver.com,
	jasowang@...hat.com, ebiederm@...ssion.com,
	nicolas.dichtel@...nd.com, ryazanov.s.a@...il.com,
	buytenh@...tstofly.org, aviadr@...lanox.com, nbd@...nwrt.org,
	alexei.starovoitov@...il.com, Neil.Jerram@...aswitch.com,
	ronye@...lanox.com, simon.horman@...ronome.com,
	alexander.h.duyck@...hat.com, john.ronciak@...el.com,
	mleitner@...hat.com, shrijeet@...il.com, gospo@...ulusnetworks.com,
	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
>
--
To unsubscribe from this list: send the line "unsubscribe netdev" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html