Currently every slave device gets assigned the same MAC address, by having it copied from the master interface. Since some code paths depend on this identity, changing the MAC address on slave interfaces is not supported. However identical MAC addresses can pose problems to management and orchestration software that correctly expect network interfaces on the same segment to have unique addresses.
Patches 1-8 include style fixes and refactoring (patch 9 depends upon) that improve the overal quality and make the intruduction of the feature straightforward. Patch 9 enables slave devices to own unique MAC addresses and change such addresses live, fixing lack of support and a related bug, as MAC address changes on master were not propagated to slave devices. In order to preserve the main peculiarity of this driver, that is exposing only a single MAC address for outbound traffic, frames egressing from master are now effectively masquerated when working in L2 mode. Marco Chiappero (9): ipvlan: fix coding style for the ipvlan tree ipvlan: refactor ipvlan_process_multicast for readability ipvlan: replace ipvlan_rcv_frame ipvlan: rework the IP lookup function ipvlan: improve and uniform naming ipvlan: reposition three functions ipvlan: relocate ipvlan_skb_crossing_ns calls ipvlan: improve compiler hints ipvlan: introduce individual MAC addresses drivers/net/ipvlan/ipvlan.h | 2 +- drivers/net/ipvlan/ipvlan_core.c | 592 ++++++++++++++++++++------------------- drivers/net/ipvlan/ipvlan_main.c | 49 ++-- drivers/net/ipvlan/ipvtap.c | 1 + 4 files changed, 333 insertions(+), 311 deletions(-) -- 2.9.3 -------------------------------------------------------------- Intel Research and Development Ireland Limited Registered in Ireland Registered Office: Collinstown Industrial Park, Leixlip, County Kildare Registered Number: 308263 This e-mail and any attachments may contain confidential material for the sole use of the intended recipient(s). Any review or distribution by others is strictly prohibited. If you are not the intended recipient, please contact the sender and delete all copies.
