83 lines
2.8 KiB
Python
83 lines
2.8 KiB
Python
# Copyright (c) 2016 Red Hat Inc.
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# All Rights Reserved.
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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 neutron_lib.api.definitions import portbindings
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from neutron_lib import constants
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from neutron_lib.db import constants as db_consts
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from neutron_lib.services.qos import base
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from neutron_lib.services.qos import constants as qos_consts
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from oslo_log import log as logging
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from neutron.objects import network as network_object
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LOG = logging.getLogger(__name__)
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DRIVER = None
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SUPPORTED_RULES = {
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qos_consts.RULE_TYPE_BANDWIDTH_LIMIT: {
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qos_consts.MAX_KBPS: {
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'type:range': [0, db_consts.DB_INTEGER_MAX_VALUE]},
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qos_consts.MAX_BURST: {
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'type:range': [0, db_consts.DB_INTEGER_MAX_VALUE]},
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qos_consts.DIRECTION: {
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'type:values': constants.VALID_DIRECTIONS}
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},
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qos_consts.RULE_TYPE_DSCP_MARKING: {
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qos_consts.DSCP_MARK: {'type:values': constants.VALID_DSCP_MARKS}
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},
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qos_consts.RULE_TYPE_MINIMUM_BANDWIDTH: {
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qos_consts.MIN_KBPS: {
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'type:range': [0, db_consts.DB_INTEGER_MAX_VALUE]},
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qos_consts.DIRECTION: {'type:values': constants.VALID_DIRECTIONS}
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}
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}
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class OVSDriver(base.DriverBase):
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@staticmethod
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def create():
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return OVSDriver(
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name='openvswitch',
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vif_types=[portbindings.VIF_TYPE_OVS,
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portbindings.VIF_TYPE_VHOST_USER],
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vnic_types=[portbindings.VNIC_NORMAL, portbindings.VNIC_DIRECT],
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supported_rules=SUPPORTED_RULES,
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requires_rpc_notifications=True)
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def validate_rule_for_port(self, context, rule, port):
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return self.validate_rule_for_network(context, rule, port.network_id)
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def validate_rule_for_network(self, context, rule, network_id):
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# Minimum-bandwidth rule is only supported on networks whose
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# first segment is backed by a physnet.
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if rule.rule_type == qos_consts.RULE_TYPE_MINIMUM_BANDWIDTH:
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net = network_object.Network.get_object(
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context, id=network_id)
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physnet = net.segments[0].physical_network
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if physnet is None:
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return False
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return True
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def register():
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"""Register the driver."""
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global DRIVER
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if not DRIVER:
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DRIVER = OVSDriver.create()
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LOG.debug('Open vSwitch QoS driver registered')
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