[ovs-discuss] ovs-dpdk vhost user port cannot work with pktgen

[Sihao Xie]

Hi, all
  I want to run pktgen with ovs, and I follow some tutorials in the network
but I ran into some problems related to socket ID:

Copyright (c) <2010-2019>, Intel Corporation. All rights reserved. Powered
by DPDK
EAL: Detected 6 lcore(s)
EAL: Detected 1 NUMA nodes
EAL: Multi-process socket /var/run/dpdk/pktgen/mp_socket
EAL: Probing VFIO support...
update_memory_region(): Too many memory regions
update_memory_region(): Too many memory regions
Lua 5.3.1  Copyright (C) 1994-2015 Lua.org, PUC-Rio

*** Copyright (c) <2010-2019>, Intel Corporation. All rights reserved.
*** Pktgen created by: Keith Wiles -- >>> Powered by DPDK <<<

Initialize Port 0 -- TxQ 1, RxQ 1,  Src MAC 00:00:00:00:00:01
Initialize Port 1 -- TxQ 1, RxQ 1,  Src MAC 00:00:00:00:00:02

Port  0: Link Up - speed 10000 Mbps - full-duplex <Enable promiscuous mode>
Port  1: Link Up - speed 10000 Mbps - full-duplex <Enable promiscuous mode>

  RX/TX processing lcore:   0 rx:  1 tx:  1
PANIC in pktgen_main_rxtx_loop():
*** port 0 socket ID 4294967295 has different socket ID for lcore 0 socket
ID 0
7: [/lib/x86_64-linux-gnu/libc.so.6(clone+0x6d) [0x7ff740ff641d]]
6: [/lib/x86_64-linux-gnu/libpthread.so.0(+0x76ba) [0x7ff7412c06ba]]
5: [./app/x86_64-native-linuxapp-gcc/pktgen(eal_thread_loop+0x1e1)
[0x58e781]]
4: [./app/x86_64-native-linuxapp-gcc/pktgen(pktgen_launch_one_lcore+0xb7)
[0x49fb47]]
3: [./app/x86_64-native-linuxapp-gcc/pktgen() [0x49e115]]
2: [./app/x86_64-native-linuxapp-gcc/pktgen(__rte_panic+0xc3) [0x4634fc]]
1: [./app/x86_64-native-linuxapp-gcc/pktgen(rte_dump_stack+0x2b) [0x594adb]]
Aborted (core dumped)

I use cmd below to run the pktgen:
  export DPDK_PARAMS="-c 0x19 --master-lcore 3 -m 512 --file-prefix pktgen
--no-pci
--vdev=net_virtio_user1,mac=00:00:00:00:00:01,path=/usr/local/var/run/openvswitch/vhost-user1
--vdev=net_virtio_user2,mac=00:00:00:00:00:02,path=/usr/local/var/run/openvswitch/vhost-user2
"
  export PKTGEN_PARAMS='-T -P -m "0.0,4.1"'
  sudo -E ./app/x86_64-native-linuxapp-gcc/pktgen $DPDK_PARAMS --
$PKTGEN_PARAMS

As for ovs, I use cmd below to set up the virtual switch with vhost user
port:
  sudo ./utilities/ovs-vsctl add-br br0 -- set bridge br0
datapath_type=netdev
  sudo ./utilities/ovs-vsctl add-port br0 vhost-user1 -- set Interface
vhost-user1 type=dpdkvhostuser
  sudo ./utilities/ovs-vsctl add-port br0 vhost-user2 -- set Interface
vhost-user2 type=dpdkvhostuser

Finally, I ran pktgen in the same ubuntu16.04 virtual machine which ovs run.

I have no idea why this error occurs and cannot solve it, so I come to ask
for your help.

Many thanks,
House
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