环境说明：OpenStack版本为pike

一、开启SRIOV（bios中默认开启）请先做好备份

[博主对控制和计算节点都做了修改，如有问题，还请指正]

①在/etc/default/grub中增加 “intel_iommu=on”

vi /etc/default/grub
GRUB_CMDLINE_LINUX=”crashkernel=auto rhgb quiet intel_iommu=on“

②执行
grub2-mkconfig -o /boot/grub2/grub.cfg
reboot

③确定你要使用的物理口 本例使用eth0 eth1

echo 4 > /sys/class/net/eth0/device/sriov_numvfs 
echo 4 > /sys/class/net/eth1/device/sriov_numvfs 

二、计算节点

①安装sriov-agent

yum install openstack-neutron-sriov-nic-agent

②编辑sriov-agent配置文件

vi /etc/neutron/plugins/ml2/sriov_agent.ini

[sriov_nic]
physical_device_mappings = sriov1:eth0,sriov2:eth1

③启动sriov-agent服务

systemctl restart neutron-sriov-nic-agent.service

④修改nova配置

vi /etc/nova/nova.conf
passthrough_whitelist = [{“devname”:”eth0″, “physical_network”:”sriov1″},{“devname”:”eth1″, “physical_network”:”sriov2″}]

⑤重启nova-compute服务

systemctl restart openstack-nova-compute.service

三、控制节点

①编辑nova配置文件

vi /etc/nova/nova.conf

available_filters=nova.scheduler.filters.all_filters
enabled_filters=RetryFilter,AvailabilityZoneFilter,ComputeFilter,ComputeCapabilitiesFilter,ImagePropertiesFilter,ServerGroupAntiAffinityFilter,ServerGroupAffinityFilter,PciPassthroughFilter

②重启nova-scheduler服务

systemctl restart openstack-nova-scheduler.service

③编辑neutron配置文件

vi /etc/neutron/plugins/ml2/ml2_conf.ini

mechanism_drivers = openvswitch,l2population,sriovnicswitch

编辑/etc/neutron/plugins/ml2/ml2_conf_sriov.ini配置文件【不存在则新建】

lspci -nn |grep net查看vendor and product id

vi /etc/neutron/plugins/ml2/ml2_conf_sriov.ini

[ml2_sriov]
supported_pci_vendor_devs = 8086:1520
agent_required = True

增加config-file

vi  /usr/lib/systemd/system/neutron-server.service

–config-file /etc/neutron/plugins/ml2/ml2_conf_sriov.ini
 

④添加映射关系（相信大家使用flat网络和vlan网络的话，比较熟悉）

vi /etc/neutron/plugins/ml2/ml2_conf.ini

[ml2_type_vlan]
flat_networks = provider1,sriov1,sriov2

⑤重启neutron服务

systemctl daemon-reload
systemctl restart neutron-server.service 

四、创建云主机

以上配置已完成，接下来我们进行网络创建，云主机使用此网络。

①创建网络flat_sriov192

neutron net-create flat_sriov192 –provider:network_type vlan –provider:physical_network sriov1  –provider:segmentation_id  192

②创建子网sriov_subnet192
neutron subnet-create flat_sriov192 –name sriov_subnet192 –allocation-pool start=192.85.1.1,end=192.85.1.253 –gateway 192.85.1.254 192.85.1.0/24 –disable-dhcp

③创建网络flat_sriov193

neutron net-create flat_sriov193 –provider:network_type vlan –provider:physical_network sriov2  –provider:segmentation_id 193

④创建子网sriov_subnet193
neutron subnet-create flat_sriov193 –name sriov_subnet193 –allocation-pool start=193.85.1.1,end=193.85.1.253 –gateway 193.85.1.254 193.85.1.0/24 –disable-dhcp

⑤创建port riov-192-1

neutron port-create  flat_sriov192  –name sriov-192-1 –binding:vnic-type direct

⑥创建port riov-193-1
neutron port-create  flat_sriov193  –name sriov-193-1 –binding:vnic-type direct 

⑦使用port启动云主机(可自行添加管理网络，便于管理)

nova boot  –flavor m1.mid \
  –image 3ae6ba6d-cf3e-49e2-9521-ad6e49f598a0 \
  –nic port-id=1245fgdf-a665-42b4-a046-264c07dbad43 \
  –nic port-id=0gfd44c9-d4bb-470c-b370-05b8197af463 \
  sriov-vm1

flavor：云主机类型名称

image：镜像id

port_id：步骤⑤⑥所创建port对应id

今天的文章OpenStack配置使用sriov分享到此就结束了，感谢您的阅读。