[ovs][libvirt] virt-xml 使用

查看可用的参数：

[root@vrouter1 tong]#  virt-xml --add-device --network=? |grep source
  source
  source_mode
  source_path
  source_type
[root@vrouter1 tong]# 

添加两个vhostuser的网卡

[root@vrouter1 ~]# virt-xml --add-device --network type=vhostuser,model=virtio,source_type=unix,source_mode=server,source_path="/tmp/nlb_vm0.sock" centos7.0
Domain 'centos7.0' defined successfully.
[root@vrouter1 ~]# virt-xml --add-device --network type=vhostuser,model=virtio,source_type=unix,source_mode=server,source_path="/tmp/nlb_vm1.sock" centos7.0
Domain 'centos7.0' defined successfully.
[root@vrouter1 ~]# 

删除所有类型为bridge的网卡

[root@vrouter1 ~]# virt-xml --remove-device --network type=bridge centos7.0
Domain 'centos7.0' defined successfully.
[root@vrouter1 ~]# 

设置OVS-dpdk

[root@vrouter1 ~]# ovs-vsctl add-br ovs-br0
ovs-vsctl: Error detected while setting up 'ovs-br0'.  See ovs-vswitchd log for details.
ovs-vsctl: The default log directory is "/var/log/openvswitch".
[root@vrouter1 ~]# ovs-vsctl set bridge ovs-br0 datapath_type=netdev

设置 vhostuser port

[root@vrouter1 ~]# ovs-vsctl add-port ovs-br0 vhostclient0 -- set Interface vhostclient0 type=dpdkvhostuserclient options:vhost-server-path=/tmp/nlb_vm0.sock

编译qemu

./configure --prefix=/export/Datapath/tong/qemu_home/ --target-list=x86_64-softmmu --disable-gtk 

设置ovs-dpdk port

root@vrouter1 /e/D/tong# dpdk-devbind -u 0000:03:00.1
[root@vrouter1 ~]# ovs-vsctl add-port ovs-br0 pci_port1 -- set Interface pci_port1 type=dpdk options:dpdk-devargs=0000:03:00.1