ixgbe> vlan addition and removal brings the interfaces down and up

[Andrew Boyer]

I have a patch that will fix this.  Please give me a little while to clean it up, and I will send it out on the list.

-Andrew

On May 19, 2011, at 2:58 AM, Igor Anishchuk wrote:

> Hi All,
> 
> I've been using Intel E10G42AFDA 10Gbit/s AF DA Dual Port adapters
> with direct attach cables and there is one thing keeps bothering me.
> I've been searching the Internet for any information with no luck. I
> would also assume that the problem is widely known, and I found one
> related PR kern/141285 but that one was closed unsolved.
> 
> When a VLAN interface is added or removed to from the ix interfaces
> the parent interface is briefly brought down and up. This event is
> visible for all applications and the switches. With my use case I add
> and remove VLAN interfaces on the fly and the described behavior
> causes undesired effects, especially for BGP daemons that are
> configured to monitor one of permanent VLAN interfaces.
> 
> I use FreeBSD 7-STABLE and the behavior is the same with stock
> drivers, with 2.2.3 and with 2.3.8 drivers downloaded from Intel web
> site. I have attempted to disable -vlanhwtag, -vlanhwfilter and
> -vlanhwtso with no effect.
> 
> Could someone help me to stop the cards behaving this way? I do not
> mind some performance penalties, nor running in permanent promiscuous
> mode. I just want the card to stay up all the time regardless of the
> vlan interfaces attached to it.
> 
> Any help, links, patches are much appreciated.
> 
> Regards,
> 
> Igor Anishchuk
> _______________________________________________
> freebsd-net at freebsd.org mailing list
> http://lists.freebsd.org/mailman/listinfo/freebsd-net
> To unsubscribe, send any mail to "freebsd-net-unsubscribe at freebsd.org"

--------------------------------------------------
Andrew Boyer	aboyer at averesystems.com