netdev - Re: [patch net-next V4] net: introduce ethernet teaming device

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Date:	Tue, 25 Oct 2011 08:42:41 +0200
From:	Jiri Pirko <jpirko@...hat.com>
To:	Andy Gospodarek <andy@...yhouse.net>
Cc:	netdev@...r.kernel.org, davem@...emloft.net,
	eric.dumazet@...il.com, bhutchings@...arflare.com,
	shemminger@...tta.com, fubar@...ibm.com, tgraf@...radead.org,
	ebiederm@...ssion.com, mirqus@...il.com, kaber@...sh.net,
	greearb@...delatech.com, jesse@...ira.com, fbl@...hat.com,
	benjamin.poirier@...il.com, jzupka@...hat.com
Subject: Re: [patch net-next V4] net: introduce ethernet teaming device

Tue, Oct 25, 2011 at 02:02:33AM CEST, andy@...yhouse.net wrote:
>On Mon, Oct 24, 2011 at 10:13:25AM +0200, Jiri Pirko wrote:
>> This patch introduces new network device called team. It supposes to be
>> very fast, simple, userspace-driven alternative to existing bonding
>> driver.
>> 
>> Userspace library called libteam with couple of demo apps is available
>> here:
>> https://github.com/jpirko/libteam
>> Note it's still in its dipers atm.
>> 
>> team<->libteam use generic netlink for communication. That and rtnl
>> suppose to be the only way to configure team device, no sysfs etc.
>> 
>> Python binding basis for libteam was recently introduced (some need
>> still need to be done on it though). Daemon providing arpmon/miimon
>> active-backup functionality will be introduced shortly.
>> All what's necessary is already implemented in kernel team driver.
>> 
>> Signed-off-by: Jiri Pirko <jpirko@...hat.com>
>> 
>> v3->v4:
>> 	- remove redundant synchronize_rcu from __team_change_mode()
>> 	- revert "set and clear of mode_ops happens per pointer, not per
>> 	  byte"
>> 	- extend comment of function __team_change_mode()
>> 
>> v2->v3:
>> 	- team_change_mtu() user rcu version of list traversal to unwind
>> 	- set and clear of mode_ops happens per pointer, not per byte
>> 	- port hashlist changed to be embedded into team structure
>> 	- error branch in team_port_enter() does cleanup now
>> 	- fixed rtln->rtnl
>> 
>> v1->v2:
>> 	- modes are made as modules. Makes team more modular and
>> 	  extendable.
>> 	- several commenters' nitpicks found on v1 were fixed
>> 	- several other bugs were fixed.
>> 	- note I ignored Eric's comment about roundrobin port selector
>> 	  as Eric's way may be easily implemented as another mode (mode
>> 	  "random") in future.
>
>Jiri,
>
>I've been following this work closely since your first post and now to
>wonder if you could create a 'team' tree somewhere.  It would be nice if
>there was a repo that we could clone for testing and a base for others
>to help with the development and provide patches.
>
>It also might avoid so much of this back and forth, so that you are not
>on v37 by the time the code meets everyones needs. :-)
>
>Once the code goes mainline and Dave pulls your tree, you could then
>remove it.

I believe v5 will be the one :)

Jirka

>
>-andy
>
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