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

Reply via email to