Merge "QEMU/KVM: accept vmxnet3 NIC"

Author: Zuul

nova/tests/unit/virt/libvirt/test_vif.py

@@ -840,14 +840,16 @@ def test_model_kvm_qemu_parallels_custom(self):
                              network_model.VIF_MODEL_RTL8139,
                              network_model.VIF_MODEL_E1000,
                              network_model.VIF_MODEL_E1000E,
-                             network_model.VIF_MODEL_SPAPR_VLAN)
+                             network_model.VIF_MODEL_SPAPR_VLAN,
+                             network_model.VIF_MODEL_VMXNET3)
             else:
                 supported = (network_model.VIF_MODEL_NE2K_PCI,
                              network_model.VIF_MODEL_PCNET,
                              network_model.VIF_MODEL_RTL8139,
                              network_model.VIF_MODEL_E1000,
                              network_model.VIF_MODEL_E1000E,
-                             network_model.VIF_MODEL_SPAPR_VLAN)
+                             network_model.VIF_MODEL_SPAPR_VLAN,
+                             network_model.VIF_MODEL_VMXNET3)
             for model in supported:
                 image_meta = objects.ImageMeta.from_dict(
                     {'properties': {'hw_vif_model': model}})

nova/virt/libvirt/vif.py

@@ -67,15 +67,17 @@
         network_model.VIF_MODEL_E1000,
         network_model.VIF_MODEL_E1000E,
         network_model.VIF_MODEL_LAN9118,
-        network_model.VIF_MODEL_SPAPR_VLAN],
+        network_model.VIF_MODEL_SPAPR_VLAN,
+        network_model.VIF_MODEL_VMXNET3],
     'kvm': [
         network_model.VIF_MODEL_VIRTIO,
         network_model.VIF_MODEL_NE2K_PCI,
         network_model.VIF_MODEL_PCNET,
         network_model.VIF_MODEL_RTL8139,
         network_model.VIF_MODEL_E1000,
         network_model.VIF_MODEL_E1000E,
-        network_model.VIF_MODEL_SPAPR_VLAN],
+        network_model.VIF_MODEL_SPAPR_VLAN,
+        network_model.VIF_MODEL_VMXNET3],
     'xen': [
         network_model.VIF_MODEL_NETFRONT,
         network_model.VIF_MODEL_NE2K_PCI,

releasenotes/notes/qemu-accept-vmxnet3-nic.yaml

@@ -0,0 +1,7 @@
+---
+features:
+  - |
+    Add the ability to use ``vmxnet3`` NIC on a host using the QEMU/KVM driver. This allows
+    the migration of an ESXi VM to QEMU/KVM, without any driver changes. ``vmxnet3``
+    comes with better performance and lower latency comparing to an emulated driver like
+    ``e1000``.