[dpdk-dev] Not able to bring up the VM with dpdk enabled ovs bridge

harshavardhan Reddy hvreddy1110 at gmail.com
Thu Aug 18 14:14:50 CEST 2016


Hi,

When I try to add the virtio interface to dpdk enabled ovs bridge I am
getting below error message.

"Unable to add port vnet1 to OVS bridge ovsbr0"

I have added created the ovs bridge and added ports to the same as below.
$OVS_DIR/utilities/ovs-vsctl add-port ovsbr0 vhost-user1 -- set Interface
vhost-user1 type=dpdkvhostuser
$OVS_DIR/utilities/ovs-vsctl add-port ovsbr0 vhost-user2 -- set Interface
vhost-user2 type=dpdkvhostuser

In my VM's xml file I have done the below "highlighted "changes as well

sudo virsh dumpxml AP1
<domain type='kvm'>
  <name>AP1</name>
  <uuid>6dd3c551-76a2-65d5-32e7-8daaaf433cf4</uuid>
  <memory unit='KiB'>4194304</memory>
  <currentMemory unit='KiB'>4194304</currentMemory>
  <vcpu placement='static' cpuset='2-3'>2</vcpu>
  <os>
    <type arch='x86_64' machine='pc-i440fx-trusty'>hvm</type>
    <boot dev='hd'/>
  </os>
  <features>
    <acpi/>
    <apic/>
    <pae/>
  </features>
  <clock offset='utc'/>
  <on_poweroff>destroy</on_poweroff>
  <on_reboot>restart</on_reboot>
  <on_crash>restart</on_crash>
  <devices>
    <emulator>/usr/bin/qemu-system-x86_64</emulator>
    <disk type='file' device='disk'>
      <driver name='qemu' type='raw'/>
      <source file='/var/lib/libvirt/images/VM1-clone.img'/>
      <target dev='hda' bus='ide'/>
      <address type='drive' controller='0' bus='0' target='0' unit='0'/>
    </disk>
    <disk type='block' device='cdrom'>
      <driver name='qemu' type='raw'/>
      <target dev='hdc' bus='ide'/>
      <readonly/>
      <address type='drive' controller='0' bus='1' target='0' unit='0'/>
    </disk>
    <controller type='usb' index='0'>
      <address type='pci' domain='0x0000' bus='0x00' slot='0x01'
function='0x2'/>
    </controller>
    <controller type='pci' index='0' model='pci-root'/>
    <controller type='ide' index='0'>
      <address type='pci' domain='0x0000' bus='0x00' slot='0x01'
function='0x1'/>
    </controller>
    <interface type='network'>
      <mac address='52:54:00:64:ad:4f'/>
      <source network='default'/>
      <model type='rtl8139'/>
      <address type='pci' domain='0x0000' bus='0x00' slot='0x03'
function='0x0'/>
    </interface>
    <interface type='bridge'>
      <mac address='52:54:00:f0:7f:a1'/>
      <source bridge='ovsbr0'/>
      <virtualport type='openvswitch'>
        <parameters interfaceid='22a05fd5-0501-49fb-983b-06c3c06540ea'/>
      </virtualport>
      <model type='virtio'/>
      <address type='pci' domain='0x0000' bus='0x00' slot='0x06'
function='0x0'/>
    </interface>
    <interface type='vhostuser'>
      <mac address='52:54:00:a2:e6:28'/>
      <source type='unix' path='/usr/local/var/run/openvswitch/vhost-user1'
mode='client'/>
      <model type='virtio'/>
      <address type='pci' domain='0x0000' bus='0x00' slot='0x07'
function='0x0'/>
    </interface>
    <serial type='pty'>
      <target port='0'/>
    </serial>
    <console type='pty'>
      <target type='serial' port='0'/>
    </console>
    <input type='mouse' bus='ps2'/>
    <input type='keyboard' bus='ps2'/>
    <graphics type='vnc' port='-1' autoport='yes'/>
    <sound model='ich6'>
      <address type='pci' domain='0x0000' bus='0x00' slot='0x04'
function='0x0'/>
    </sound>
    <video>
      <model type='cirrus' vram='16384' heads='1'/>
      <address type='pci' domain='0x0000' bus='0x00' slot='0x02'
function='0x0'/>
    </video>
    <memballoon model='virtio'>
      <address type='pci' domain='0x0000' bus='0x00' slot='0x05'
function='0x0'/>
    </memballoon>
  </devices>
</domain>


However still I am not able to start the VM.
When I try to start the VM, I am getting below error message.

#virsh start AP1
error: Failed to start domain AP1
error: internal error: Unable to add port vnet1 to OVS bridge ovsbr0

I have Ubuntu latest version as my host
"Ubuntu 16.04.1 LTS" with qemu 2.5.0 version.

Kindly suggest If I am missing anything here.

Regards,
Hvr


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