Large receive offloading is known to cause problems if received packets are passed to other host. Therefore the kernel disables it by calling dev_disable_lro() whenever a network device is enslaved in a bridge or forwarding is enabled for it (or globally). For virtual devices we need to disable LRO on the underlying physical device (which is actually receiving the packets).
Current dev_disable_lro() code handles this propagation for a vlan (including 802.1ad nested vlan), macvlan or a vlan on top of a macvlan. This patch adds LRO disabling propagation for - macvlan on top of a vlan or any stacked combination of those - bonding - teaming In the bonding and teaming case, it is necessary to disable LRO not only on slaves when dev_disable_lro() is called but also on any slave (port) added later. Michal Kubecek (3): net: handle more general stacking in dev_disable_lro() team: add helper to check if device is a team master net: propagate LRO disabling to bond and team slaves drivers/net/bonding/bond_main.c | 3 +++ drivers/net/team/team.c | 6 +++++- include/linux/netdevice.h | 7 +++++++ net/core/dev.c | 31 ++++++++++++++++++++++--------- 4 files changed, 37 insertions(+), 10 deletions(-) -- 1.8.4.5 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
