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

["Ananyev, Konstantin" <konstantin.ananyev@intel.com>]

Hi
It’s been while since I looked at it last time,
but shouldn’t you assign desired vlan tag to the VF first:
ip link set <device> vf <num> vlan <num>
?
Konstantin

From: Eelco Chaudron [mailto:echaudro@redhat.com]
Sent: Thursday, January 3, 2019 4:42 PM
To: Lu, Wenzhuo <wenzhuo.lu@intel.com>; Ananyev, Konstantin <konstantin.ananyev@intel.com>
Cc: dev <dev@dpdk.org>
Subject: Re: [dpdk-dev] VF of a X520 card does not process VLAN packets


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