Re: [PATCH] team: set IFF_SLAVE on team ports
From: Jiri Pirko <jiri@resnulli.us>
Date: 2018-09-30 09:39:42
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Sun, Sep 30, 2018 at 11:38:05AM CEST, stephen@networkplumber.org wrote:
On Sun, 30 Sep 2018 09:14:14 +0200 Jiri Pirko [off-list ref] wrote:quoted
Thu, Sep 27, 2018 at 04:04:26PM CEST, 3chas3@gmail.com wrote:quoted
On 07/10/15 02:41, Jiri Pirko wrote:quoted
Thu, Jul 09, 2015 at 05:36:55PM CEST, jblunck@infradead.org wrote:quoted
On Thu, Jul 9, 2015 at 12:07 PM, Jiri Pirko [off-list ref] wrote:quoted
Thu, Jul 09, 2015 at 11:58:34AM CEST, jblunck@infradead.org wrote:quoted
The code in net/ipv6/addrconf.c:addrconf_notify() tests for IFF_SLAVE to decide if it should start the address configuration. Since team ports shouldn't get link-local addresses assigned lets set IFF_SLAVE when linking a port to the team master.I don't want to use IFF_SLAVE in team. Other master-slave devices are not using that as well, for example bridge, ovs, etc.Maybe they need to get fixed too. I've used that flag because it is documented as a "slave of a load balancer" which describes what a team port is.quoted
I think that this should be fixed in addrconf_notify. It should lookup if there is a master on top and bail out in that case.There are other virtual interfaces that have a master assigned and want to participate in IPv6 address configuration.Can you give me an example?I would like to revisit this patch (yes, I know it has been a while). I believe the VRF implementation uses master to group the interfaces under a single interface. I don't see a reason not to use IFF_SLAVE since team and bonding are fairly similar.Again, why do you need team port to have IFF_SLAVE flag? What do you want to achieveWithout setting this flag IPv6 will try and make a link specific address.
Why is it not an issue with bridge, ovs, and other master-slave devices?