[dpdk-dev] How to bind VM's NIC to OVS

[Vivek Gupta]

Hi All

I am testing a scenario where I will receive the traffic on DPDK binded port on host machine and will forward that traffic to DPDK binded port of VM machine. For this I have done the followings-
1.	Binded eth0 and eth1 of host machine to DPDK
2.	Created the OVS bridge in host machine as below
$OVS_DIR/utilities/ovs-vsctl  add-br ovsbr0 -- set Bridge ovsbr0 datapath_type=netdev 
$OVS_DIR/utilities/ovs-vsctl  add-port ovsbr0 dpdk0 -- set Interface dpdk0   type=dpdk 
$OVS_DIR/utilities/ovs-vsctl  add-port ovsbr0 dpdk1 -- set Interface dpdk1   type=dpdk 

3. Installed the VM and created virtual NIC(eth4, eth5)
4. Binded VM machine NIC to VM's DPDK 

Now I am not able to understand how to attach VM's NIC to OVS?

To solve this I tried below command on HOST MACHINE
$OVS_DIR/utilities/ovs-vsctl  add-port ovsbr0 dpdk4 -- set Interface dpdk4   type=dpdk 
$OVS_DIR/utilities/ovs-vsctl  add-port ovsbr0 dpdk5 -- set Interface dpdk5   type=dpdk 

but got error "Cannot get interface dpdk4". I believe this is due to OVS is looking in host machine for interface "dpdk4 & dpdk5" although these interface are available in VM machine.

Do I need QEMU, if yes then how it will help.

Please suggest.

Thanks & Regards
Vivek Gupta
9971514343


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