# Licensed under the Apache License, Version 2.0 (the "License"); you may # not use this file except in compliance with the License. You may obtain # a copy of the License at # # http://www.apache.org/licenses/LICENSE-2.0 # # Unless required by applicable law or agreed to in writing, software # distributed under the License is distributed on an "AS IS" BASIS, WITHOUT # WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the # License for the specific language governing permissions and limitations # under the License. import copy import mock from neutron_lib import constants from neutron_lib import context from oslo_utils import uuidutils from neutron.objects.qos import policy from neutron.objects.qos import rule from neutron.plugins.ml2.drivers.openvswitch.agent import ( ovs_agent_extension_api as ovs_ext_api) from neutron.plugins.ml2.drivers.openvswitch.agent.extension_drivers import ( qos_driver) from neutron.plugins.ml2.drivers.openvswitch.agent.openflow.ovs_ofctl import ( ovs_bridge) from neutron.tests.unit.plugins.ml2.drivers.openvswitch.agent import ( ovs_test_base) class QosOVSAgentDriverTestCase(ovs_test_base.OVSAgentConfigTestBase): def setUp(self): super(QosOVSAgentDriverTestCase, self).setUp() conn_patcher = mock.patch( 'neutron.agent.ovsdb.impl_idl._connection') conn_patcher.start() self.addCleanup(conn_patcher.stop) self.context = context.get_admin_context() self.qos_driver = qos_driver.QosOVSAgentDriver() self.agent_api = ovs_ext_api.OVSAgentExtensionAPI( ovs_bridge.OVSAgentBridge('br-int'), ovs_bridge.OVSAgentBridge('br-tun')) self.qos_driver.consume_api(self.agent_api) self.qos_driver.initialize() self.qos_driver.br_int = mock.Mock() self.qos_driver.br_int.get_egress_bw_limit_for_port = mock.Mock( return_value=(1000, 10)) self.get_egress = self.qos_driver.br_int.get_egress_bw_limit_for_port self.get_ingress = self.qos_driver.br_int.get_ingress_bw_limit_for_port self.qos_driver.br_int.dump_flows_for = mock.Mock(return_value=None) self.qos_driver.br_int.del_egress_bw_limit_for_port = mock.Mock() self.delete_egress = ( self.qos_driver.br_int.delete_egress_bw_limit_for_port) self.delete_ingress = ( self.qos_driver.br_int.delete_ingress_bw_limit_for_port) self.create_egress = ( self.qos_driver.br_int.create_egress_bw_limit_for_port) self.update_ingress = ( self.qos_driver.br_int.update_ingress_bw_limit_for_port) self.rules = [ self._create_bw_limit_rule_obj(constants.EGRESS_DIRECTION), self._create_bw_limit_rule_obj(constants.INGRESS_DIRECTION), self._create_dscp_marking_rule_obj()] self.qos_policy = self._create_qos_policy_obj(self.rules) self.port = self._create_fake_port(self.qos_policy.id) def _create_bw_limit_rule_obj(self, direction): rule_obj = rule.QosBandwidthLimitRule() rule_obj.id = uuidutils.generate_uuid() rule_obj.max_kbps = 2 rule_obj.max_burst_kbps = 200 rule_obj.direction = direction rule_obj.obj_reset_changes() return rule_obj def _create_dscp_marking_rule_obj(self): rule_obj = rule.QosDscpMarkingRule() rule_obj.id = uuidutils.generate_uuid() rule_obj.dscp_mark = 32 rule_obj.obj_reset_changes() return rule_obj def _create_qos_policy_obj(self, rules): policy_dict = {'id': uuidutils.generate_uuid(), 'project_id': uuidutils.generate_uuid(), 'name': 'test', 'description': 'test', 'shared': False, 'rules': rules} policy_obj = policy.QosPolicy(self.context, **policy_dict) policy_obj.obj_reset_changes() for policy_rule in policy_obj.rules: policy_rule.qos_policy_id = policy_obj.id policy_rule.obj_reset_changes() return policy_obj def _create_fake_port(self, policy_id): self.port_name = 'fakeport' class FakeVifPort(object): port_name = self.port_name ofport = 111 return {'vif_port': FakeVifPort(), 'qos_policy_id': policy_id, 'network_qos_policy_id': None, 'port_id': uuidutils.generate_uuid(), 'device_owner': uuidutils.generate_uuid()} def test_create_new_rules(self): self.qos_driver.br_int.get_egress_bw_limit_for_port = mock.Mock( return_value=(None, None)) self.qos_driver.br_int.get_ingress_bw_limit_for_port = mock.Mock( return_value=(None, None)) self.qos_driver.create(self.port, self.qos_policy) self.assertEqual(0, self.delete_egress.call_count) self.assertEqual(0, self.delete_ingress.call_count) self.create_egress.assert_called_once_with( self.port_name, self.rules[0].max_kbps, self.rules[0].max_burst_kbps) self.update_ingress.assert_called_once_with( self.port_name, self.rules[1].max_kbps, self.rules[1].max_burst_kbps) self._assert_dscp_rule_create_updated() def test_create_existing_rules(self): self.qos_driver.create(self.port, self.qos_policy) self._assert_rules_create_updated() self._assert_dscp_rule_create_updated() def test_update_rules(self): self.qos_driver.update(self.port, self.qos_policy) self._assert_rules_create_updated() self._assert_dscp_rule_create_updated() def test_update_rules_no_vif_port(self): port = copy.copy(self.port) port.pop("vif_port") self.qos_driver.update(port, self.qos_policy) self.create_egress.assert_not_called() self.update_ingress.assert_not_called() def _test_delete_rules(self, qos_policy): self.qos_driver.br_int.get_ingress_bw_limit_for_port = mock.Mock( return_value=(self.rules[1].max_kbps, self.rules[1].max_burst_kbps)) self.qos_driver.create(self.port, qos_policy) self.qos_driver.delete(self.port, qos_policy) self.delete_egress.assert_called_once_with(self.port_name) self.delete_ingress.assert_called_once_with(self.port_name) def _test_delete_rules_no_policy(self): self.qos_driver.br_int.get_ingress_bw_limit_for_port = mock.Mock( return_value=(self.rules[1].max_kbps, self.rules[1].max_burst_kbps)) self.qos_driver.delete(self.port) self.delete_egress.assert_called_once_with(self.port_name) self.delete_ingress.assert_called_once_with(self.port_name) def test_delete_rules(self): self._test_delete_rules(self.qos_policy) def test_delete_rules_no_policy(self): self._test_delete_rules_no_policy() def test_delete_rules_no_vif_port(self): port = copy.copy(self.port) port.pop("vif_port") self.qos_driver.delete(port, self.qos_policy) self.delete_egress.assert_not_called() self.delete_ingress.assert_not_called() def _assert_rules_create_updated(self): self.create_egress.assert_called_once_with( self.port_name, self.rules[0].max_kbps, self.rules[0].max_burst_kbps) self.update_ingress.assert_called_once_with( self.port_name, self.rules[1].max_kbps, self.rules[1].max_burst_kbps) def _assert_dscp_rule_create_updated(self): # Assert add_flow is the last call self.assertEqual( 'add_flow', self.qos_driver.br_int.method_calls[-1][0]) self.qos_driver.br_int.add_flow.assert_called_once_with( actions='mod_nw_tos:128,load:55->NXM_NX_REG2[0..5],resubmit(,0)', in_port=mock.ANY, priority=65535, reg2=0, table=0)