According API documentation policyTypes field is optional:
 https://docs.openshift.com/container-platform/4.11/rest_api/network_apis/networkpolicy-networking-k8s-io-v1.html#specification

If this field is not specified, it will default based on the existence of Ingress or Egress rules;

But if policyTypes is not specified all traffic dropped despite what is stated in the rule

4.12

100%

1. Configure sriov (nodepolicy + sriovnetwork)
2. Configure 2 pods
3. enable MutiNetworkPolicy
4. apply  MutiNetworkPolicy:
spec:
  podSelector:
    matchLabels:
      pod: pod1
  ingress:
  - from:
    - ipBlock:
        cidr: 192.168.0.2/32
5. send traffic between pods (192.168.0.2 => pod=pod1)

traffic dropped 

traffic passed