[ovs-discuss] OVS 2.4 with DPDK 2.0

A, Sarada (HP Networking) sarada.a at hpe.com
Wed Nov 18 05:02:06 UTC 2015

Hi All,

I am running the OpenvSwitch 2.4 version with DPDK 2.0 on Ubuntu 14.04 Virtual machine.  I could successfully build both Open vswitch 2.4 & DPDK 2.0, I am unable to figure out how to add the dpdk interface to the bridge.

Here are the steps I have followed.

1.       wget http://openvswitch.org/releases/openvswitch-2.4.0.tar.gz

2.       tar -zxvf openvswitch-2.4.0.tar.gz

3.       wget http://dpdk.org/browse/dpdk/snapshot/dpdk-2.0.0.tar.gz

4.       tar -zxvf dpdk-2.0.0.tar.gz

5.       export DPDK_DIR=/root/dpdk-2.0.0/

6.       cd $DPDK_DIR

7.       Update  config/common_linuxapp with 'CONFIG_RTE_LIBRTE_VHOST=y'

8.       make install T=x86_64-native-linuxapp-gcc

9.       export DPDK_BUILD=$DPDK_DIR/x86_64-native-linuxapp-gcc/

10.   cd  ~/openvswitch-2.4.0/

11.   ./boot.sh

12.   make CFLAGS='-O3 -march=native' install

13.   modprobe uio

14.   insmod $DPDK_BUILD/kmod/igb_uio.ko

15.   $DPDK_DIR/tools/dpdk_nic_bind.py  --force --bind=igb_uio eth1

16.   Mount huge pages : `mount -t hugetlbfs -o pagesize=1G none /dev/hugepages`

17.   mkdir -p /usr/local/etc/openvswitch

18.   mkdir -p /usr/local/var/run/openvswitch

19.   ovsdb-tool create /usr/local/etc/openvswitch/conf.db /usr/local/share/openvswitch/vswitch.ovsschema

20.   ovsdb-server --remote=punix:/usr/local/var/run/openvswitch/db.sock --remote=db:Open_vSwitch,Open_vSwitch,manager_options --pidfile -detach

21.   ovs-vsctl --no-wait init

22.   ovs-vswitchd --dpdk -c 0x1 -n 4 -- unix:$DB_SOCK --pidfile -detach

23.   ovs-vsctl add-br br0 -- set bridge br0 datapath_type=netdev

24.   I am not sure on how to add the eth1 interface/dpdk port to the beidge br0 now. After configuring the igb_uio module, I will not see the eth1 interface in the 'ifconfig -a'.

25.   But I can see the eth1 is configured as dpdk port from the below command

root at ubuntu1404:~# $DPDK_DIR/tools/dpdk_nic_bind.py --status

Network devices using DPDK-compatible driver


0000:0b:00.0 'VMXNET3 Ethernet Controller' drv=igb_uio unused=

Network devices using kernel driver


0000:02:00.0 '82545EM Gigabit Ethernet Controller (Copper)' if=eth2 drv=e1000 unused=igb_uio *Active*

0000:03:00.0 'VMXNET3 Ethernet Controller' if=eth0 drv=vmxnet3 unused=igb_uio

Other network devices



26.   After adding the bridge, I see the below error in the log file.

2015-11-16T08:07:23.640Z|00002|vlog|INFO|opened log file /usr/local/var/log/openvswitch/ovs-vswitchd.log

2015-11-16T08:07:23.641Z|00003|ovs_numa|INFO|Discovered 4 CPU cores on NUMA node 0

2015-11-16T08:07:23.641Z|00004|ovs_numa|INFO|Discovered 1 NUMA nodes and 4 CPU cores

2015-11-16T08:07:23.641Z|00005|reconnect|INFO|unix:/usr/local/var/run/openvswitch/db.sock: connecting...

2015-11-16T08:07:23.641Z|00006|reconnect|INFO|unix:/usr/local/var/run/openvswitch/db.sock: connected

2015-11-16T08:07:23.643Z|00007|bridge|INFO|ovs-vswitchd (Open vSwitch) 2.4.0

2015-11-17T07:08:20.420Z|00008|memory|INFO|2132 kB peak resident set size after 82857.7 seconds

2015-11-17T07:08:20.422Z|00009|ofproto_dpif|INFO|netdev at ovs-netdev: Datapath supports recirculation

2015-11-17T07:08:20.422Z|00010|ofproto_dpif|INFO|netdev at ovs-netdev: MPLS label stack length probed as 3

2015-11-17T07:08:20.422Z|00011|ofproto_dpif|INFO|netdev at ovs-netdev: Datapath supports unique flow ids

2015-11-17T07:08:20.422Z|00012|bridge|INFO|bridge br0: added interface br0 on port 65534

2015-11-17T07:08:20.427Z|00013|dpif_netlink|ERR|Generic Netlink family 'ovs_datapath' does not exist. The Open vSwitch kernel module is probably not loaded.

2015-11-17T07:08:20.428Z|00014|bridge|INFO|bridge br0: using datapath ID 0000caceadde9d49

2015-11-17T07:08:20.428Z|00015|connmgr|INFO|br0: added service controller "punix:/usr/local/var/run/openvswitch/br0.mgmt"

27.   I am running the following kernel version on my Ubuntu virtual machine

root at ubuntu1404:~# uname -r


root at ubuntu1404:~#

Kindly help me to identify the dpdk port & add the eth interface/dpdk port to the Bridge?



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