bce vlan stripping limitations

[Tom Beard]

Keen observers will have noticed that I pasted the output from the wrong vlan1.  The correct output is below.

vlan1: flags=8942<BROADCAST,RUNNING,PROMISC,SIMPLEX,MULTICAST> metric 0 mtu 1500
        ether 84:2b:2b:0b:b3:72
        nd6 options=29<PERFORMNUD,IFDISABLED,AUTO_LINKLOCAL>
        media: Ethernet autoselect (1000baseT <full-duplex>)
        status: active
        vlan: 304 vlanpcp: 0 parent interface: bce0
        groups: vlan 

> On 11 Dec 2016, at 14:44, Tom Beard via freebsd-net <freebsd-net at freebsd.org> wrote:
> 
> Hi all
> 
> I’m having issues with vlan handling on a bce interface on 11.0-RELEASE.  From what I’ve read, the bce driver supports hardware vlan stripping and is indeed doing this.  My intent was to create a vlan interface bound to the bce interface and bridge this to a tap interface to use with a bhyve VM (as below).  
> 
> Outbound traffic from the VM is correctly bridged from tap1 to vlan1 then tagged with vlan 304 and passed out on bce0
> 
> Inbound traffic tagged with vlan 304 on bce0 never makes it to vlan0.
> 
> From what I can tell this is caused by vlan stripping on the bce0 interface and it looks like I can’t disable it leaving me with little option but to buy a new network card.
> 
> Can anyone validate that I’m correct here and this is a known limitation or am I barking up completely the wrong tree?
> 
> Thanks
> Tom
> 
> bce0: <QLogic NetXtreme II BCM5716 1000Base-T (C0)> mem 0xda000000-0xdbffffff irq 36 at device 0.0 on pci1
> 
> bce0: flags=8943<UP,BROADCAST,RUNNING,PROMISC,SIMPLEX,MULTICAST> metric 0 mtu 1500
>        options=80028<VLAN_MTU,JUMBO_MTU,LINKSTATE>
>        ether 84:2b:2b:0b:b3:72
>        nd6 options=29<PERFORMNUD,IFDISABLED,AUTO_LINKLOCAL>
>        media: Ethernet autoselect (1000baseT <full-duplex>)
>        status: active
> 
> bridge1: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> metric 0 mtu 1500
>        ether 02:eb:af:cf:7c:01
>        nd6 options=1<PERFORMNUD>
>        groups: bridge 
>        id 00:00:00:00:00:00 priority 32768 hellotime 2 fwddelay 15
>        maxage 20 holdcnt 6 proto rstp maxaddr 2000 timeout 1200
>        root id 00:00:00:00:00:00 priority 32768 ifcost 0 port 0
>        member: tap1 flags=143<LEARNING,DISCOVER,AUTOEDGE,AUTOPTP>
>                ifmaxaddr 0 port 11 priority 128 path cost 2000000
>        member: vlan1 flags=143<LEARNING,DISCOVER,AUTOEDGE,AUTOPTP>
>                ifmaxaddr 0 port 9 priority 128 path cost 55
> 
> vlan1: flags=8102<BROADCAST,PROMISC,MULTICAST> metric 0 mtu 1500
>        ether 00:00:00:00:00:00
>        nd6 options=29<PERFORMNUD,IFDISABLED,AUTO_LINKLOCAL>
>        vlan: 0 vlanpcp: 0 parent interface: <none>
>        groups: vlan 
> 
> tap1: flags=8943<UP,BROADCAST,RUNNING,PROMISC,SIMPLEX,MULTICAST> metric 0 mtu 1500
>        options=80000<LINKSTATE>
>        ether 00:bd:3a:17:4c:02
>        nd6 options=29<PERFORMNUD,IFDISABLED,AUTO_LINKLOCAL>
>        media: Ethernet autoselect
>        status: active
>        groups: tap 
>        Opened by PID 12880
> 
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