Add role parameter for rx/tx virtio-net queue size

Introduce NovaLibvirtRxQueueSize and NovaLibvirtTxQueueSize to set
virtio-net queue sizes as a role parameter.

Change-Id: I7f252b38d4358fc815d98c522ca59a6adfd69a88
(cherry picked from commit 444fc042dc)

puppet/services/nova-compute.yaml

@@ -140,6 +140,24 @@ parameters:
     default: False
     description: Whether to verify image signatures.
     type: boolean
+  NovaLibvirtRxQueueSize:
+    description: >
+      virtio-net RX queue size. Valid values are 256, 512, 1024
+    default: 512
+    type: number
+    constraints:
+      - allowed_values: [ 256, 512, 1024 ]
+    tags:
+      - role_specific
+  NovaLibvirtTxQueueSize:
+    description: >
+      virtio-net TX queue size. Valid values are 256, 512, 1024
+    default: 512
+    type: number
+    constraints:
+      - allowed_values: [ 256, 512, 1024 ]
+    tags:
+      - role_specific
 
 conditions:
   enable_live_migration_tunnelled:
@@ -169,10 +187,14 @@ resources:
           - map_replace:
             - nova::compute::vcpu_pin_set: NovaVcpuPinSet
               nova::compute::reserved_host_memory: NovaReservedHostMemory
+              nova::compute::libvirt::rx_queue_size: NovaLibvirtRxQueueSize
+              nova::compute::libvirt::tx_queue_size: NovaLibvirtTxQueueSize
             - values: {get_param: [RoleParameters]}
           - values:
               NovaVcpuPinSet: {get_param: NovaVcpuPinSet}
               NovaReservedHostMemory: {get_param: NovaReservedHostMemory}
+              NovaLibvirtRxQueueSize: {get_param: NovaLibvirtRxQueueSize}
+              NovaLibvirtTxQueueSize: {get_param: NovaLibvirtTxQueueSize}
 
 outputs:
   role_data:

releasenotes/notes/nova_libvirt_queue_size_parameter-b4409a91c553ce1b.yaml

@@ -0,0 +1,6 @@
+---
+features:
+  - |
+    Introduce NovaLibvirtRxQueueSize and NovaLibvirtTxQueueSize to set
+    virtio-net queue sizes as a role parameter. Valid values are 256,
+    512 and 1024