Deploy SR-IOV Network with RDMA

Step 1: Create NicClusterPolicy

apiVersion: mellanox.com/v1alpha1
kind: NicClusterPolicy
metadata:
  name: nic-cluster-policy
spec:
  sriovDevicePlugin:
    image: sriov-network-device-plugin
    repository: nvcr.io/nvidia/mellanox
    version: network-operator-v25.7.0
  nvIpam:
    image: nvidia-k8s-ipam
    repository: nvcr.io/nvidia/mellanox
    version: network-operator-v25.7.0
    enableWebhook: false
  secondaryNetwork:
    cniPlugins:
      image: plugins
      repository: nvcr.io/nvidia/mellanox
      version: network-operator-v25.7.0
    multus:
      image: multus-cni
      repository: nvcr.io/nvidia/mellanox
      version: network-operator-v25.7.0

kubectl apply -f nicclusterpolicy.yaml

Step 2: Create IPPool for nv-ipam

apiVersion: nv-ipam.nvidia.com/v1alpha1
kind: IPPool
metadata:
  name: sriov-pool
  namespace: nvidia-network-operator
spec:
  subnet: 192.168.2.0/24
  perNodeBlockSize: 50
  gateway: 192.168.2.1

kubectl apply -f ippool.yaml

Step 3: Configure SR-IOV

apiVersion: sriovnetwork.openshift.io/v1
kind: SriovNetworkNodePolicy
metadata:
  name: ethernet-sriov
  namespace: nvidia-network-operator
spec:
  deviceType: netdevice
  mtu: 1500
  nodeSelector:
    feature.node.kubernetes.io/pci-15b3.present: "true"
  nicSelector:
    vendor: "15b3"
  isRdma: true
  numVfs: 8
  priority: 90
  resourceName: sriov_resource

kubectl apply -f sriovnetworknodepolicy.yaml

Step 4: Create SR-IOV Network

apiVersion: sriovnetwork.openshift.io/v1
kind: SriovNetwork
metadata:
  name: sriov-rdma-network
  namespace: nvidia-network-operator
spec:
  ipam: |
    {
      "type": "nv-ipam",
      "poolName": "sriov-pool"
    }
  networkNamespace: default
  resourceName: sriov_resource

kubectl apply -f sriovnetwork.yaml

Step 5: Deploy test workload

apiVersion: v1
kind: Pod
metadata:
  name: sriov-test-pod
  annotations:
    k8s.v1.cni.cncf.io/networks: sriov-rdma-network
spec:
  containers:
  - name: test-container
    image: mellanox/rping-test
    command: ["/bin/bash", "-c", "sleep infinity"]
    securityContext:
      capabilities:
        add: ["IPC_LOCK"]
    resources:
      requests:
        nvidia.com/sriov_resource: '1'
      limits:
        nvidia.com/sriov_resource: '1'

kubectl apply -f pod.yaml

Verify the deployment:

kubectl exec -it sriov-test-pod -- ip addr show
kubectl exec -it sriov-test-pod -- ibv_devices

Complete Configuration

apiVersion: mellanox.com/v1alpha1
kind: NicClusterPolicy
metadata:
  name: nic-cluster-policy
spec:
  sriovDevicePlugin:
    image: sriov-network-device-plugin
    repository: nvcr.io/nvidia/mellanox
    version: network-operator-v25.7.0
  nvIpam:
    image: nvidia-k8s-ipam
    repository: nvcr.io/nvidia/mellanox
    version: network-operator-v25.7.0
    enableWebhook: false
  secondaryNetwork:
    cniPlugins:
      image: plugins
      repository: nvcr.io/nvidia/mellanox
      version: network-operator-v25.7.0
    multus:
      image: multus-cni
      repository: nvcr.io/nvidia/mellanox
      version: network-operator-v25.7.0

---
apiVersion: nv-ipam.nvidia.com/v1alpha1
kind: IPPool
metadata:
  name: sriov-pool
  namespace: nvidia-network-operator
spec:
  subnet: 192.168.2.0/24
  perNodeBlockSize: 50
  gateway: 192.168.2.1
---
apiVersion: sriovnetwork.openshift.io/v1
kind: SriovNetworkNodePolicy
metadata:
  name: ethernet-sriov
  namespace: nvidia-network-operator
spec:
  deviceType: netdevice
  mtu: 1500
  nodeSelector:
    feature.node.kubernetes.io/pci-15b3.present: "true"
  nicSelector:
    vendor: "15b3"
  isRdma: true
  numVfs: 8
  priority: 90
  resourceName: sriov_resource
---
apiVersion: sriovnetwork.openshift.io/v1
kind: SriovNetwork
metadata:
  name: sriov-rdma-network
  namespace: nvidia-network-operator
spec:
  ipam: |
    {
      "type": "nv-ipam",
      "poolName": "sriov-pool"
    }
  networkNamespace: default
  resourceName: sriov_resource
---
apiVersion: v1
kind: Pod
metadata:
  name: sriov-test-pod
  annotations:
    k8s.v1.cni.cncf.io/networks: sriov-rdma-network
spec:
  containers:
  - name: test-container
    image: mellanox/rping-test
    command: ["/bin/bash", "-c", "sleep infinity"]
    securityContext:
      capabilities:
        add: ["IPC_LOCK"]
    resources:
      requests:
        nvidia.com/sriov_resource: '1'
      limits:
        nvidia.com/sriov_resource: '1'