On Fri, 28 Oct 2011 17:34:18 +0200
Arvid Brodin [off-list ref] wrote:

Ok, so after a lot of reading and looking through code I have this idea of a
standalone solution:

1) Add ioctls to create (and remove) "hsr" netdevs which encapsulates two
   physical Ethernet interfaces each (somewhat like the bridge code does, but
   with precisely 2 interfaces slaved).

Please use the newer netlink interface and the master attribute for this
rather than inventing yet another ioctl.