06bf8d1186
neutron-lib contains the neutron.common.constants. This patch switches references over to use the lib version of them. Change-Id: I0354c84bd85e20ff4ea7ba392bf9ebfc2e7ac70e
96 lines
3.7 KiB
Python
96 lines
3.7 KiB
Python
# Copyright 2016 VMware, Inc.
|
|
#
|
|
# All Rights Reserved
|
|
#
|
|
# 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.
|
|
|
|
from neutron_lib import constants as n_consts
|
|
from neutron_lib.plugins import constants as plugin_const
|
|
from neutron_lib.plugins import directory
|
|
from neutron_lib.services.qos import constants as qos_consts
|
|
|
|
from oslo_config import cfg
|
|
from oslo_log import log as logging
|
|
|
|
LOG = logging.getLogger(__name__)
|
|
|
|
|
|
class NsxVQosBWLimits(object):
|
|
# Data structure to hold the NSX-V representation
|
|
# of the neutron QoS Bandwidth rule
|
|
bandwidthEnabled = False
|
|
averageBandwidth = 0
|
|
peakBandwidth = 0
|
|
burstSize = 0
|
|
|
|
|
|
class NsxVQosRule(object):
|
|
|
|
def __init__(self, context=None, qos_policy_id=None):
|
|
super(NsxVQosRule, self).__init__()
|
|
|
|
self._qos_plugin = None
|
|
|
|
# Data structure to hold the NSX-V representation
|
|
# of the neutron QoS Bandwidth rule for both directions
|
|
self.egress = NsxVQosBWLimits()
|
|
self.ingress = NsxVQosBWLimits()
|
|
|
|
# And data for the DSCP marking rule
|
|
self.dscpMarkEnabled = False
|
|
self.dscpMarkValue = 0
|
|
|
|
if qos_policy_id is not None:
|
|
self._init_from_policy_id(context, qos_policy_id)
|
|
|
|
def _get_qos_plugin(self):
|
|
if not self._qos_plugin:
|
|
self._qos_plugin = directory.get_plugin(plugin_const.QOS)
|
|
return self._qos_plugin
|
|
|
|
# init the nsx_v qos data (outShapingPolicy) from a neutron qos policy
|
|
def _init_from_policy_id(self, context, qos_policy_id):
|
|
self.bandwidthEnabled = False
|
|
self.dscpMarkEnabled = False
|
|
|
|
# read the neutron policy restrictions
|
|
if qos_policy_id is not None:
|
|
plugin = self._get_qos_plugin()
|
|
policy_obj = plugin.get_policy(context, qos_policy_id)
|
|
if 'rules' in policy_obj and len(policy_obj['rules']) > 0:
|
|
for rule_obj in policy_obj['rules']:
|
|
if (rule_obj['type'] ==
|
|
qos_consts.RULE_TYPE_BANDWIDTH_LIMIT):
|
|
# BW limit rule for one of the directions
|
|
if rule_obj['direction'] == n_consts.EGRESS_DIRECTION:
|
|
dir_obj = self.egress
|
|
else:
|
|
dir_obj = self.ingress
|
|
dir_obj.bandwidthEnabled = True
|
|
# averageBandwidth: kbps (neutron) -> bps (nsxv)
|
|
dir_obj.averageBandwidth = rule_obj['max_kbps'] * 1024
|
|
# peakBandwidth: a Multiplying on the average BW
|
|
# because the neutron qos configuration supports
|
|
# only 1 value
|
|
dir_obj.peakBandwidth = int(round(
|
|
dir_obj.averageBandwidth *
|
|
cfg.CONF.NSX.qos_peak_bw_multiplier))
|
|
# burstSize: kbps (neutron) -> Bytes (nsxv)
|
|
dir_obj.burstSize = rule_obj['max_burst_kbps'] * 128
|
|
if rule_obj['type'] == qos_consts.RULE_TYPE_DSCP_MARKING:
|
|
# DSCP marking rule
|
|
self.dscpMarkEnabled = True
|
|
self.dscpMarkValue = rule_obj['dscp_mark']
|
|
|
|
return self
|