Implementation Neutron SR-IOV

This change adds the new attribute
``sriov_host_interface`` in order to map ml2 network
names to physical SR-IOV capable network interfaces.

Co-Authored-By: James Denton <james.denton@rackspace.com>

Change-Id: Ia62725e2369f75000157e0ab2c3f858e61fef10d
Closes-Bug: #1653283

library/provider_networks

@@ -23,7 +23,7 @@ from ansible.module_utils.basic import *
 DOCUMENTATION = """
 ---
 module: provider_networks
-version_added: "1.8.4"
+version_added: "1.8.5"
 short_description:
     - Parse a list of networks and return data that Ansible can use
 description:
@@ -82,6 +82,7 @@ EXAMPLES = """
 #     container_type: "veth"
 #     container_interface: "eth11"
 #     host_bind_override: "eth11"
+#     sriov_host_interfaces: "p1p1,p1p2"
 #     type: "vlan"
 #     range: "1:1, 101:101"
 #     net_name: "vlan"
@@ -100,7 +101,6 @@ EXAMPLES = """
 #       - nova_compute
 #       - swift_proxy
 
-
 - name: Test provider networks
   provider_networks:
     provider_networks: "{{ provider_networks }}"
@@ -130,6 +130,11 @@ EXAMPLES = """
 #             "flat:brx-eth12",
 #             "vlan:brx-eth11"
 #         ],
+#         "network_sriov_mappings": "physnet1:p1p1,physnet1:p1p2",
+#         "network_sriov_mappings_list": [
+#             "physnet1:p1p1"
+#             "physnet1:p1p2"
+#         ],
 #         "network_types": "vxlan,flat,vlan",
 #         "network_types_list": [
 #             "vxlan",
@@ -162,6 +167,7 @@ class ProviderNetworksParsing(object):
         self.network_flat_networks = list()
         self.network_mappings = list()
         self.network_types = list()
+        self.network_sriov_mappings = list()
 
     def load_networks(self, provider_networks, is_metal=False,
                       bind_prefix=None):
@@ -217,6 +223,17 @@ class ProviderNetworksParsing(object):
                         )
                     )
 
+                    if 'sriov_host_interfaces' in net['network']:
+                        host_interfaces = \
+                            net['network']['sriov_host_interfaces']
+                        for interface in host_interfaces.split(','):
+                            self.network_sriov_mappings.append(
+                                '%s:%s' % (
+                                    net['network']['net_name'],
+                                    interface
+                                )
+                            )
+
 
 def main():
 
@@ -260,7 +277,8 @@ def main():
             'network_mappings': ','.join(pnp.network_mappings),
             'network_mappings_list': pnp.network_mappings,
             'network_types': ','.join(pnp.network_types),
-            'network_types_list': pnp.network_types
+            'network_sriov_mappings': ','.join(pnp.network_sriov_mappings),
+            'network_sriov_mappings_list': pnp.network_sriov_mappings
         }
 
         module.exit_json(changed=True, **resp)

releasenotes/notes/network_sriov_mappings-7e4c9bcb164625c3.yaml

@@ -0,0 +1,8 @@
+---
+features:
+        - The new provider network attribute ``sriov_host_interfaces``
+          is added to support SR-IOV network mappings inside Neutron.
+          The provider_network adds new items network_sriov_mappings
+          and network_sriov_mappings_list to the provider_networks
+          dictionary.
+          Multiple interfaces can be defined by comma separation.