77 lines
2.8 KiB
Python
77 lines
2.8 KiB
Python
# Copyright (c) 2015 Openstack Foundation
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#
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# Licensed under the Apache License, Version 2.0 (the "License"); you may
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# not use this file except in compliance with the License. You may obtain
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# a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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# License for the specific language governing permissions and limitations
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# under the License.
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from oslo_config import cfg
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from oslo_log import log as logging
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from neutron.agent.common import ovs_lib
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from neutron.agent.l2.extensions import qos
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from neutron.i18n import _LW
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from neutron.plugins.ml2.drivers.openvswitch.mech_driver import (
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mech_openvswitch)
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LOG = logging.getLogger(__name__)
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class QosOVSAgentDriver(qos.QosAgentDriver):
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_SUPPORTED_RULES = (
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mech_openvswitch.OpenvswitchMechanismDriver.supported_qos_rule_types)
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def __init__(self):
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super(QosOVSAgentDriver, self).__init__()
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self.br_int_name = cfg.CONF.OVS.integration_bridge
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self.br_int = None
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def initialize(self):
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self.br_int = ovs_lib.OVSBridge(self.br_int_name)
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def create(self, port, qos_policy):
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self._handle_rules('create', port, qos_policy)
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def update(self, port, qos_policy):
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self._handle_rules('update', port, qos_policy)
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def delete(self, port, qos_policy):
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# TODO(QoS): consider optimizing flushing of all QoS rules from the
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# port by inspecting qos_policy.rules contents
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self._delete_bandwidth_limit(port)
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def _handle_rules(self, action, port, qos_policy):
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for rule in qos_policy.rules:
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if rule.rule_type in self._SUPPORTED_RULES:
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handler_name = ("".join(("_", action, "_", rule.rule_type)))
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handler = getattr(self, handler_name)
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handler(port, rule)
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else:
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LOG.warning(_LW('Unsupported QoS rule type for %(rule_id)s: '
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'%(rule_type)s; skipping'),
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{'rule_id': rule.id, 'rule_type': rule.rule_type})
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def _create_bandwidth_limit(self, port, rule):
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self._update_bandwidth_limit(port, rule)
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def _update_bandwidth_limit(self, port, rule):
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port_name = port['vif_port'].port_name
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max_kbps = rule.max_kbps
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max_burst_kbps = rule.max_burst_kbps
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self.br_int.create_egress_bw_limit_for_port(port_name,
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max_kbps,
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max_burst_kbps)
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def _delete_bandwidth_limit(self, port):
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port_name = port['vif_port'].port_name
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self.br_int.delete_egress_bw_limit_for_port(port_name)
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