24a84004ff
Add support for the qos service in NSX|V, including: - Attach/Detach qos policy to a new or updated network - Allow qos configuration on a backend network only, and only if use_dvs_features is True - Update the bw limitations on the edge through the dvs - Update the networks bw limitations when a policy or rule changes through the QoS notification driver Change-Id: Icee25b59e8e0f3c1c093077b631250a908e127c1
114 lines
4.3 KiB
Python
114 lines
4.3 KiB
Python
# Copyright 2016 VMware, Inc.
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#
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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.api.rpc.callbacks import events as callbacks_events
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from neutron import context as n_context
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from neutron import manager
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from neutron.objects.qos import policy as qos_policy
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from neutron.plugins.common import constants
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from oslo_log import log as logging
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from vmware_nsx.db import db as nsx_db
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LOG = logging.getLogger(__name__)
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class NsxVQosRule(object):
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def __init__(self, context=None, qos_policy_id=None):
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super(NsxVQosRule, self).__init__()
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# Data structure to hold the NSX-V representation
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# of the neutron qos rule.
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self._qos_plugin = None
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self.enabled = False
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self.averageBandwidth = 0
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self.peakBandwidth = 0
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self.burstSize = 0
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if qos_policy_id is not None:
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self._init_from_policy_id(context, qos_policy_id)
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def _get_qos_plugin(self):
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if not self._qos_plugin:
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loaded_plugins = manager.NeutronManager.get_service_plugins()
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self._qos_plugin = loaded_plugins[constants.QOS]
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return self._qos_plugin
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# init the nsx_v qos data (outShapingPolicy) from a neutron qos policy
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def _init_from_policy_id(self, context, qos_policy_id):
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self.enabled = False
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# read the neutron policy restrictions
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if qos_policy_id is not None:
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# read the QOS rule from DB
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plugin = self._get_qos_plugin()
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rules_obj = plugin.get_policy_bandwidth_limit_rules(
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context, qos_policy_id)
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if rules_obj is not None and len(rules_obj) > 0:
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rule_obj = rules_obj[0]
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self.enabled = True
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# averageBandwidth: kbps (neutron) -> bps (nsxv)
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self.averageBandwidth = rule_obj['max_kbps'] * 1024
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# peakBandwidth: the same as the average value because the
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# neutron qos configuration supports only 1 value
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self.peakBandwidth = self.averageBandwidth
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# burstSize: kbps (neutron) -> Bytes (nsxv)
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self.burstSize = rule_obj['max_burst_kbps'] * 128
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return self
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def update_network_policy_binding(context, net_id, new_policy_id):
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# detach the old policy (if exists) from the network
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old_policy = qos_policy.QosPolicy.get_network_policy(
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context, net_id)
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if old_policy:
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old_policy.detach_network(net_id)
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# attach the new policy (if exists) to the network
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if new_policy_id is not None:
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new_policy = qos_policy.QosPolicy.get_object(
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context, id=new_policy_id)
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if new_policy:
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new_policy.attach_network(net_id)
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def handle_qos_notification(policy_obj, event_type, dvs):
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# Check if QoS policy rule was created/deleted/updated
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# Only if the policy rule was updated, we need to update the dvs
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if (event_type == callbacks_events.UPDATED and
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hasattr(policy_obj, "rules")):
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# Reload the policy as admin so we will have a context
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context = n_context.get_admin_context()
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admin_policy = qos_policy.QosPolicy.get_object(
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context, id=policy_obj.id)
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# get all the bound networks of this policy
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networks = admin_policy.get_bound_networks()
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qos_rule = NsxVQosRule(context=context,
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qos_policy_id=policy_obj.id)
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for net_id in networks:
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# update the new bw limitations for this network
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net_morefs = nsx_db.get_nsx_switch_ids(context.session, net_id)
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for moref in net_morefs:
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# update the qos restrictions of the network
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dvs.update_port_groups_config(
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net_id,
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moref,
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dvs.update_port_group_spec_qos,
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qos_rule)
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