netdev - VLAN filtering/VLAN aware bridge problems

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Date:	Thu, 29 Aug 2013 14:50:27 +0200
From:	Stefan Priebe - Profihost AG <s.priebe@...fihost.ag>
To:	vyasevic@...hat.com
CC:	David Miller <davem@...emloft.net>,
	Linux Netdev List <netdev@...r.kernel.org>
Subject: VLAN filtering/VLAN aware bridge problems

Hello,

currently i'm running vanilla 3.8.8 kernel with some tap devices using
VLANs on top of a bridge on top of a bond.

This works fine and everything is great.

Now i started to test 3.10.9 and all my VLANs stopped working no matter
i disable or enable CONFIG_BRIDGE_VLAN_FILTERING.

The packets never reach the TAP device.

Here is an output of ip a l (vlan 3021):

ip a l
1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN
    link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
    inet 127.0.0.1/8 scope host lo
       valid_lft forever preferred_lft forever
    inet6 ::1/128 scope host
       valid_lft forever preferred_lft forever
2: eth0: <BROADCAST,MULTICAST,PROMISC,SLAVE,UP,LOWER_UP> mtu 1500 qdisc
mq master bond0 state UP qlen 1000
    link/ether 00:25:90:84:de:a8 brd ff:ff:ff:ff:ff:ff
3: eth4: <BROADCAST,MULTICAST,SLAVE,UP,LOWER_UP> mtu 9000 qdisc mq
master bond5 state UP qlen 10000
    link/ether 90:e2:ba:33:45:0c brd ff:ff:ff:ff:ff:ff
4: eth1: <BROADCAST,MULTICAST,PROMISC,SLAVE,UP,LOWER_UP> mtu 1500 qdisc
mq master bond0 state UP qlen 1000
    link/ether 00:25:90:84:de:a8 brd ff:ff:ff:ff:ff:ff
5: eth2: <BROADCAST,MULTICAST,PROMISC,SLAVE,UP,LOWER_UP> mtu 1500 qdisc
mq master bond1 state UP qlen 1000
    link/ether 00:25:90:84:de:aa brd ff:ff:ff:ff:ff:ff
6: eth5: <BROADCAST,MULTICAST,SLAVE,UP,LOWER_UP> mtu 9000 qdisc mq
master bond5 state UP qlen 10000
    link/ether 90:e2:ba:33:45:0c brd ff:ff:ff:ff:ff:ff
7: eth3: <BROADCAST,MULTICAST,PROMISC,SLAVE,UP,LOWER_UP> mtu 1500 qdisc
mq master bond1 state UP qlen 1000
    link/ether 00:25:90:84:de:aa brd ff:ff:ff:ff:ff:ff
8: bond0: <BROADCAST,MULTICAST,MASTER,UP,LOWER_UP> mtu 1500 qdisc
noqueue master vmbr0 state UP
    link/ether 00:25:90:84:de:a8 brd ff:ff:ff:ff:ff:ff
    inet6 fe80::225:90ff:fe84:dea8/64 scope link
       valid_lft forever preferred_lft forever
9: bond1: <BROADCAST,MULTICAST,MASTER,UP,LOWER_UP> mtu 1500 qdisc
noqueue master vmbr1 state UP
    link/ether 00:25:90:84:de:aa brd ff:ff:ff:ff:ff:ff
    inet6 fe80::225:90ff:fe84:deaa/64 scope link
       valid_lft forever preferred_lft forever
10: vmbr0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue
state UP
    link/ether 00:25:90:84:de:a8 brd ff:ff:ff:ff:ff:ff
    inet 178.250.9.30/25 brd 178.250.9.127 scope global vmbr0
       valid_lft forever preferred_lft forever
    inet6 fe80::225:90ff:fe84:dea8/64 scope link
       valid_lft forever preferred_lft forever
11: vmbr1: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue
state UP
    link/ether 00:25:90:84:de:aa brd ff:ff:ff:ff:ff:ff
    inet6 fe80::225:90ff:fe84:deaa/64 scope link
       valid_lft forever preferred_lft forever
12: bond5: <BROADCAST,MULTICAST,MASTER,UP,LOWER_UP> mtu 9000 qdisc
noqueue state UP
    link/ether 90:e2:ba:33:45:0c brd ff:ff:ff:ff:ff:ff
    inet 10.255.0.30/24 brd 10.255.0.255 scope global bond5
       valid_lft forever preferred_lft forever
    inet6 fe80::92e2:baff:fe33:450c/64 scope link
       valid_lft forever preferred_lft forever
15: vmbr1.3020@...r1: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc
noqueue master vmbr1v3020 state UP
    link/ether 00:25:90:84:de:aa brd ff:ff:ff:ff:ff:ff
    inet6 fe80::225:90ff:fe84:deaa/64 scope link
       valid_lft forever preferred_lft forever
16: vmbr1v3020: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue
state UP
    link/ether 00:25:90:84:de:aa brd ff:ff:ff:ff:ff:ff
    inet6 fe80::f036:92ff:fe40:7224/64 scope link
       valid_lft forever preferred_lft forever
19: tap320i0: <BROADCAST,MULTICAST,PROMISC,UP,LOWER_UP> mtu 1500 qdisc
htb master vmbr0 state UNKNOWN qlen 500
    link/ether fe:fa:14:cc:75:b2 brd ff:ff:ff:ff:ff:ff
    inet6 fe80::fcfa:14ff:fecc:75b2/64 scope link
       valid_lft forever preferred_lft forever
20: tap320i1: <BROADCAST,MULTICAST,PROMISC,UP,LOWER_UP> mtu 1500 qdisc
htb master vmbr1v3021 state UNKNOWN qlen 500
    link/ether 8a:f3:9b:47:c7:88 brd ff:ff:ff:ff:ff:ff
    inet6 fe80::88f3:9bff:fe47:c788/64 scope link
       valid_lft forever preferred_lft forever
21: vmbr1.3021@...r1: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc
noqueue master vmbr1v3021 state UP
    link/ether 00:25:90:84:de:aa brd ff:ff:ff:ff:ff:ff
    inet6 fe80::225:90ff:fe84:deaa/64 scope link
       valid_lft forever preferred_lft forever
22: vmbr1v3021: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue
state UP
    link/ether 00:25:90:84:de:aa brd ff:ff:ff:ff:ff:ff
    inet6 fe80::9868:5eff:fe9d:bf56/64 scope link
       valid_lft forever preferred_lft forever

Greets,
Stefan
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