virtual cluster e2e tests changes

Signed-off-by: Sebastian Sch <sebassch@gmail.com>

doc/testing-virtual-machine.md

@@ -0,0 +1,33 @@
+## E2E conformance test
+
+It's possible to use QEMU to test the SR-IOV operator on a virtual kubernetes/openshift cluster.
+Using the IGB model network driver allow to create virtual functions on the virtual system
+
+## How to test
+
+First you will need to enable the `DEV_MOD` via the operator environment variable.
+Second step is to add the intel virtual nic to the supported nics configmap.
+
+```
+Intel_ixgbe_82576: 8086 10c9 10ca
+```
+
+Another requirement is to load the vfio kernel module with no_iommu configuration. Example systemd:
+
+```
+[Unit]
+Description=vfio no-iommu
+Before=kubelet.service crio.service node-valid-hostname.service
+
+[Service]
+# Need oneshot to delay kubelet
+Type=oneshot
+ExecStart=/usr/bin/bash -c "modprobe vfio enable_unsafe_noiommu_mode=1"
+StandardOutput=journal+console
+StandardError=journal+console
+
+[Install]
+WantedBy=network-online.target
+```
+
+# TBD

test/conformance/tests/test_sriov_operator.go

@@ -511,6 +511,11 @@ var _ = Describe("[sriov] operator", func() {
 
 			// 25961
 			It("Should configure the the link state variable", func() {
+				if cluster.VirtualCluster() {
+					// https://bugzilla.redhat.com/show_bug.cgi?id=2214976
+					Skip("Bug in IGB driver")
+				}
+
 				sriovNetwork := &sriovv1.SriovNetwork{
 					ObjectMeta: metav1.ObjectMeta{Name: "test-statenetwork", Namespace: operatorNamespace},
 					Spec: sriovv1.SriovNetworkSpec{
@@ -1161,6 +1166,11 @@ var _ = Describe("[sriov] operator", func() {
 			Context("PF shutdown", func() {
 				// 29398
 				It("Should be able to create pods successfully if PF is down.Pods are able to communicate with each other on the same node", func() {
+					if cluster.VirtualCluster() {
+						// https://bugzilla.redhat.com/show_bug.cgi?id=2214976
+						Skip("Bug in IGB driver")
+					}
+
 					resourceName := testResourceName
 					var testNode string
 					var unusedSriovDevice *sriovv1.InterfaceExt
@@ -1210,6 +1220,11 @@ var _ = Describe("[sriov] operator", func() {
 
 			Context("MTU", func() {
 				BeforeEach(func() {
+					if cluster.VirtualCluster() {
+						// https://bugzilla.redhat.com/show_bug.cgi?id=2214977
+						Skip("Bug in IGB driver")
+					}
+
 					var node string
 					resourceName := "mturesource"
 					var numVfs int
@@ -1305,7 +1320,6 @@ var _ = Describe("[sriov] operator", func() {
 							ResourceName:     resourceName,
 							IPAM:             `{"type":"host-local","subnet":"10.10.10.0/24","rangeStart":"10.10.10.171","rangeEnd":"10.10.10.181","routes":[{"dst":"0.0.0.0/0"}],"gateway":"10.10.10.1"}`,
 							NetworkNamespace: namespaces.Test,
-							LinkState:        "enable",
 						}}
 
 					// We need this to be able to run the connectivity checks on Mellanox cards
@@ -1626,7 +1640,6 @@ var _ = Describe("[sriov] operator", func() {
 						ResourceName:     resourceName,
 						IPAM:             `{"type":"host-local","subnet":"10.10.10.0/24","rangeStart":"10.10.10.171","rangeEnd":"10.10.10.181","routes":[{"dst":"0.0.0.0/0"}],"gateway":"10.10.10.1"}`,
 						NetworkNamespace: namespaces.Test,
-						LinkState:        "enable",
 					}}
 
 				// We need this to be able to run the connectivity checks on Mellanox cards
@@ -1981,9 +1994,9 @@ func createCustomTestPod(node string, networks []string, hostNetwork bool, podCa
 		Expect(err).ToNot(HaveOccurred())
 		return runningPod.Status.Phase
 	}, 5*time.Minute, 1*time.Second).Should(Equal(corev1.PodRunning))
-	pod, err := clients.Pods(namespaces.Test).Get(context.Background(), createdPod.Name, metav1.GetOptions{})
+	podObj, err := clients.Pods(namespaces.Test).Get(context.Background(), createdPod.Name, metav1.GetOptions{})
 	Expect(err).ToNot(HaveOccurred())
-	return pod
+	return podObj
 }
 
 func pingPod(ip string, nodeSelector string, sriovNetworkAttachment string) {

test/util/cluster/cluster.go

@@ -4,6 +4,7 @@ import (
 	"context"
 	"fmt"
 	"io"
+	"os"
 	"strings"
 	"time"
 
@@ -28,8 +29,8 @@ type EnabledNodes struct {
 }
 
 var (
-	supportedPFDrivers = []string{"mlx5_core", "i40e", "ixgbe", "ice"}
-	supportedVFDrivers = []string{"iavf", "vfio-pci", "mlx5_core"}
+	supportedPFDrivers = []string{"mlx5_core", "i40e", "ixgbe", "ice", "igb"}
+	supportedVFDrivers = []string{"iavf", "vfio-pci", "mlx5_core", "igbvf"}
 	mlxVendorID        = "15b3"
 	intelVendorID      = "8086"
 )
@@ -331,3 +332,10 @@ func GetNodeSecureBootState(clients *testclient.ClientSet, nodeName, namespace s
 
 	return strings.Contains(stdout, "[integrity]") || strings.Contains(stdout, "[confidentiality]"), nil
 }
+
+func VirtualCluster() bool {
+	if v, exist := os.LookupEnv("VIRTUAL_ENV"); exist && v != "" {
+		return true
+	}
+	return false
+}

test/util/network/network.go

@@ -12,6 +12,7 @@ import (
 
 	sriovv1 "github.com/k8snetworkplumbingwg/sriov-network-operator/api/v1"
 	testclient "github.com/k8snetworkplumbingwg/sriov-network-operator/test/util/client"
+	"github.com/k8snetworkplumbingwg/sriov-network-operator/test/util/cluster"
 )
 
 // Needed for parsing of podinfo
@@ -37,6 +38,10 @@ func CreateSriovNetwork(clientSet *testclient.ClientSet, intf *sriovv1.Interface
 			LinkState: "enable",
 		}}
 
+	if cluster.VirtualCluster() {
+		sriovNetwork.Spec.LinkState = ""
+	}
+
 	for _, o := range options {
 		o(sriovNetwork)
 	}