Messages in this thread | | | Date | Thu, 27 Aug 2009 15:22:55 -0700 | Subject | Re: dropped packets with bonding and 8021q | From | Jesse Brandeburg <> |
| |
Forwarding to the networking mailing list
On Wed, Aug 19, 2009 at 3:29 AM, Michael Walle<michael@walle.cc> wrote: > > Hi, > > i have some strange bonding and vlan configuration. The bonding interface > is in active-standby mode and i want to send and receive raw ethernet > frames on _both_ enslaved interfaces. Additionally the frames are tagged > with a vlan id. So one config could be: > > # modprobe bonding mode=1 > # modprobe 8021q > # ifenslave bond0 eth1 > # ifenslave bond0 eth2 > # vconfig add eth1 10 > # vconfig add eth2 20 > # vconfig add bond0 1000 > > # [activate bonding active slave etc..] > > I use raw/dgram sockets (AF_PACKET) with eth1.10 and eth2.20 (or dump the > frames with tcpdump). > > As long as i don't use the bonding module everything works as expected. > But if the physical interfaces are enslaved, frames received on the > standby device will be dropped. > > The network driver is e1000. So the hardware acceleration for tagged VLAN > frames gets used and the frame gets through __vlan_hwaccel_rx() in the > receiving path. And there it seems to get dropped by > skb_bond_should_drop(). > > On the "normal" receive path there was a patch by Joe Eykholt that allows > to receive frames on the physical interface even if it is enslaved and not > active (git commit 0d7a3681232f545). > > Shouldn't __vlan_hwaccel_rx() (in net/8021q/vlan_core.c) be patched in the > same way to allow reception on inactive enslaved interfaces? > > Thanks, > Michael > > PS. could you please cc me, as i'm not subscribed to the ml. > > -- > To unsubscribe from this list: send the line "unsubscribe linux-kernel" in > the body of a message to majordomo@vger.kernel.org > More majordomo info at http://vger.kernel.org/majordomo-info.html > Please read the FAQ at http://www.tux.org/lkml/ > -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
| |