[dpdk-dev] VF of a X520 card does not process VLAN packets

[Eelco Chaudron]

Hi maintainers, any feedback on the below?

Thanks,

Eelco


On 18 Dec 2018, at 12:06, Eelco Chaudron wrote:

> Hi,
>
> I’m assigning a VF of an X520 card for DPDK/testpmd/OVS but it's not 
> accepting tagged VLAN packets (it does accept tag 0).  Is this a known 
> bug/limitation of the 82599ES chipset?
>
> This is how I've tested it:
>
> $ echo 1 > /sys/bus/pci/devices/0000\:05\:00.0/sriov_numvfs
> $driverctl -v set-override 0000:05:10.0 vfio-pci
> $./testpmd -c 7 -n 4 --socket-mem 2048,0 -w 0000:05:10.0 -- \
>   --burst 64 -i --rxq=1 --txq=1 --rxd=4096 --txd=1024 \
>   —coremask=6 --auto-start --port-topology=chained
> EAL: Detected 28 lcore(s)
> EAL: Detected 1 NUMA nodes
> EAL: Multi-process socket /var/run/dpdk/rte/mp_socket
> ...
> testpmd>
>
>
> I’m sending broadcast ARP packets:
>
> Ethernet II, Src: 04:f4:bc:43:e1:00 (04:f4:bc:43:e1:00), Dst: 
> ff:ff:ff:ff:ff:ff (ff:ff:ff:ff:ff:ff)
>     Destination: ff:ff:ff:ff:ff:ff (ff:ff:ff:ff:ff:ff)
>         Address: ff:ff:ff:ff:ff:ff (ff:ff:ff:ff:ff:ff)
>         .... ..1. .... .... .... .... = LG bit: Locally administered 
> address (this is NOT the factory default)
>         .... ...1 .... .... .... .... = IG bit: Group address 
> (multicast/broadcast)
>     Source: 04:f4:bc:43:e1:00 (04:f4:bc:43:e1:00)
>         Address: 04:f4:bc:43:e1:00 (04:f4:bc:43:e1:00)
>         .... ..0. .... .... .... .... = LG bit: Globally unique 
> address (factory default)
>         .... ...0 .... .... .... .... = IG bit: Individual address 
> (unicast)
>     Type: 802.1Q Virtual LAN (0x8100)
> 802.1Q Virtual LAN, PRI: 0, CFI: 0, ID: 10
>     000. .... .... .... = Priority: Best Effort (default) (0)
>     ...0 .... .... .... = CFI: Canonical (0)
>     .... 0000 0000 1010 = ID: 10
>     Type: ARP (0x0806)
>     Padding: 2e2f303132333435363738393a3b
>     Trailer: 3c3d3e3f404142434445464748494a4b4c4d4e4f50515253...
> Address Resolution Protocol (request/gratuitous ARP)
>     Hardware type: Ethernet (1)
>     Protocol type: IP (0x0800)
>     Hardware size: 6
>     Protocol size: 4
>     Opcode: request (1)
>     [Is gratuitous: True]
>     Sender MAC address: 00:00:00:00:00:00 (00:00:00:00:00:00)
>     Sender IP address: 0.0.0.0 (0.0.0.0)
>     Target MAC address: 00:00:00:00:00:00 (00:00:00:00:00:00)
>     Target IP address: 0.0.0.0 (0.0.0.0)
>
> No traffic is received, if you replace tag 10 with 0, packets are 
> received.
>
> Note that this is a simple reproducer with testpmd, but it's reported 
> as part of an OVS integration. This works fine on the physical port, 
> or with a VF on an XL710 card.
>
> Any input appreciated.
>
> Thanks,
>
> Eelco