382 lines
18 KiB
Python
382 lines
18 KiB
Python
# vim: tabstop=4 shiftwidth=4 softtabstop=4
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#
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# Copyright 2013 Mellanox Technologies, Ltd
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain 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,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
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# implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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import sys
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from oslo.config import cfg
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from quantum.agent import securitygroups_rpc as sg_rpc
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from quantum.api.v2 import attributes
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from quantum.common import constants as q_const
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from quantum.common import exceptions as q_exc
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from quantum.common import topics
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from quantum.common import utils
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from quantum.db import agents_db
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from quantum.db import db_base_plugin_v2
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from quantum.db import l3_db
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from quantum.db import quota_db # noqa
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from quantum.db import securitygroups_rpc_base as sg_db_rpc
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from quantum.extensions import portbindings
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from quantum.extensions import providernet as provider
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from quantum.openstack.common import log as logging
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from quantum.openstack.common import rpc
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from quantum.plugins.common import utils as plugin_utils
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from quantum.plugins.mlnx import agent_notify_api
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from quantum.plugins.mlnx.common import constants
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from quantum.plugins.mlnx.db import mlnx_db_v2 as db
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from quantum.plugins.mlnx import rpc_callbacks
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LOG = logging.getLogger(__name__)
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class MellanoxEswitchPlugin(db_base_plugin_v2.QuantumDbPluginV2,
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l3_db.L3_NAT_db_mixin,
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agents_db.AgentDbMixin,
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sg_db_rpc.SecurityGroupServerRpcMixin):
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"""Realization of Quantum API on Mellanox HCA embedded switch technology.
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Current plugin provides embedded HCA Switch connectivity.
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Code is based on the Linux Bridge plugin content to
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support consistency with L3 & DHCP Agents.
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"""
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# This attribute specifies whether the plugin supports or not
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# bulk operations. Name mangling is used in order to ensure it
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# is qualified by class
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__native_bulk_support = True
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_supported_extension_aliases = ["provider", "router", "binding",
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"agent", "quotas", "security-group"]
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@property
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def supported_extension_aliases(self):
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if not hasattr(self, '_aliases'):
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aliases = self._supported_extension_aliases[:]
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sg_rpc.disable_security_group_extension_if_noop_driver(aliases)
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self._aliases = aliases
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return self._aliases
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network_view = "extension:provider_network:view"
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network_set = "extension:provider_network:set"
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binding_view = "extension:port_binding:view"
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binding_set = "extension:port_binding:set"
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def __init__(self):
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"""Start Mellanox Quantum Plugin."""
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db.initialize()
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self._parse_network_vlan_ranges()
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db.sync_network_states(self.network_vlan_ranges)
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self._set_tenant_network_type()
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self.vnic_type = cfg.CONF.ESWITCH.vnic_type
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self._setup_rpc()
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LOG.debug(_("Mellanox Embedded Switch Plugin initialisation complete"))
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def _setup_rpc(self):
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# RPC support
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self.topic = topics.PLUGIN
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self.conn = rpc.create_connection(new=True)
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self.notifier = agent_notify_api.AgentNotifierApi(topics.AGENT)
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self.callbacks = rpc_callbacks.MlnxRpcCallbacks()
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self.dispatcher = self.callbacks.create_rpc_dispatcher()
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self.conn.create_consumer(self.topic, self.dispatcher,
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fanout=False)
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# Consume from all consumers in a thread
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self.conn.consume_in_thread()
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def _parse_network_vlan_ranges(self):
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try:
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self.network_vlan_ranges = plugin_utils.parse_network_vlan_ranges(
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cfg.CONF.MLNX.network_vlan_ranges)
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except Exception as ex:
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LOG.error(_("%s. Server terminated!"), ex)
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sys.exit(1)
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LOG.info(_("Network VLAN ranges: %s"), self.network_vlan_ranges)
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def _add_network_vlan_range(self, physical_network, vlan_min, vlan_max):
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self._add_network(physical_network)
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self.network_vlan_ranges[physical_network].append((vlan_min, vlan_max))
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def _add_network(self, physical_network):
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if physical_network not in self.network_vlan_ranges:
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self.network_vlan_ranges[physical_network] = []
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def _extend_network_dict_provider(self, context, network):
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binding = db.get_network_binding(context.session, network['id'])
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network[provider.NETWORK_TYPE] = binding.network_type
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if binding.network_type == constants.TYPE_FLAT:
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network[provider.PHYSICAL_NETWORK] = binding.physical_network
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network[provider.SEGMENTATION_ID] = None
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elif binding.network_type == constants.TYPE_LOCAL:
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network[provider.PHYSICAL_NETWORK] = None
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network[provider.SEGMENTATION_ID] = None
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else:
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network[provider.PHYSICAL_NETWORK] = binding.physical_network
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network[provider.SEGMENTATION_ID] = binding.segmentation_id
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def _set_tenant_network_type(self):
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self.tenant_network_type = cfg.CONF.MLNX.tenant_network_type
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if self.tenant_network_type not in [constants.TYPE_VLAN,
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constants.TYPE_IB,
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constants.TYPE_LOCAL,
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constants.TYPE_NONE]:
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LOG.error(_("Invalid tenant_network_type: %s. "
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"Service terminated!"),
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self.tenant_network_type)
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sys.exit(1)
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def _process_provider_create(self, context, attrs):
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network_type = attrs.get(provider.NETWORK_TYPE)
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physical_network = attrs.get(provider.PHYSICAL_NETWORK)
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segmentation_id = attrs.get(provider.SEGMENTATION_ID)
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network_type_set = attributes.is_attr_set(network_type)
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physical_network_set = attributes.is_attr_set(physical_network)
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segmentation_id_set = attributes.is_attr_set(segmentation_id)
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if not (network_type_set or physical_network_set or
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segmentation_id_set):
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return (None, None, None)
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if not network_type_set:
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msg = _("provider:network_type required")
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raise q_exc.InvalidInput(error_message=msg)
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elif network_type == constants.TYPE_FLAT:
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self._process_flat_net(segmentation_id_set)
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segmentation_id = constants.FLAT_VLAN_ID
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elif network_type in [constants.TYPE_VLAN, constants.TYPE_IB]:
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self._process_vlan_net(segmentation_id, segmentation_id_set)
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elif network_type == constants.TYPE_LOCAL:
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self._process_local_net(physical_network_set,
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segmentation_id_set)
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segmentation_id = constants.LOCAL_VLAN_ID
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physical_network = None
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else:
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msg = _("provider:network_type %s not supported") % network_type
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raise q_exc.InvalidInput(error_message=msg)
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physical_network = self._process_net_type(network_type,
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physical_network,
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physical_network_set)
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return (network_type, physical_network, segmentation_id)
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def _process_flat_net(self, segmentation_id_set):
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if segmentation_id_set:
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msg = _("provider:segmentation_id specified for flat network")
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raise q_exc.InvalidInput(error_message=msg)
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def _process_vlan_net(self, segmentation_id, segmentation_id_set):
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if not segmentation_id_set:
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msg = _("provider:segmentation_id required")
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raise q_exc.InvalidInput(error_message=msg)
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if not utils.is_valid_vlan_tag(segmentation_id):
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msg = (_("provider:segmentation_id out of range "
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"(%(min_id)s through %(max_id)s)") %
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{'min_id': q_const.MIN_VLAN_TAG,
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'max_id': q_const.MAX_VLAN_TAG})
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raise q_exc.InvalidInput(error_message=msg)
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def _process_local_net(self, physical_network_set, segmentation_id_set):
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if physical_network_set:
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msg = _("provider:physical_network specified for local "
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"network")
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raise q_exc.InvalidInput(error_message=msg)
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if segmentation_id_set:
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msg = _("provider:segmentation_id specified for local "
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"network")
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raise q_exc.InvalidInput(error_message=msg)
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def _process_net_type(self, network_type,
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physical_network,
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physical_network_set):
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if network_type in [constants.TYPE_VLAN,
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constants.TYPE_IB,
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constants.TYPE_FLAT]:
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if physical_network_set:
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if physical_network not in self.network_vlan_ranges:
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msg = _("unknown provider:physical_network "
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"%s") % physical_network
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raise q_exc.InvalidInput(error_message=msg)
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elif 'default' in self.network_vlan_ranges:
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physical_network = 'default'
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else:
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msg = _("provider:physical_network required")
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raise q_exc.InvalidInput(error_message=msg)
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return physical_network
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def _process_port_binding_create(self, context, attrs):
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binding_profile = attrs.get(portbindings.PROFILE)
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binding_profile_set = attributes.is_attr_set(binding_profile)
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if not binding_profile_set:
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return self.vnic_type
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if constants.VNIC_TYPE in binding_profile:
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req_vnic_type = binding_profile[constants.VNIC_TYPE]
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if req_vnic_type in (constants.VIF_TYPE_DIRECT,
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constants.VIF_TYPE_HOSTDEV):
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return req_vnic_type
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else:
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msg = _("invalid vnic_type on port_create")
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else:
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msg = _("vnic_type is not defined in port profile")
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raise q_exc.InvalidInput(error_message=msg)
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def create_network(self, context, network):
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(network_type, physical_network,
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vlan_id) = self._process_provider_create(context,
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network['network'])
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session = context.session
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with session.begin(subtransactions=True):
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if not network_type:
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# tenant network
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network_type = self.tenant_network_type
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if network_type == constants.TYPE_NONE:
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raise q_exc.TenantNetworksDisabled()
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elif network_type in [constants.TYPE_VLAN, constants.TYPE_IB]:
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physical_network, vlan_id = db.reserve_network(session)
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else: # TYPE_LOCAL
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vlan_id = constants.LOCAL_VLAN_ID
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else:
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# provider network
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if network_type in [constants.TYPE_VLAN,
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constants.TYPE_IB,
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constants.TYPE_FLAT]:
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db.reserve_specific_network(session,
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physical_network,
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vlan_id)
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net = super(MellanoxEswitchPlugin, self).create_network(context,
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network)
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db.add_network_binding(session, net['id'],
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network_type,
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physical_network,
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vlan_id)
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self._process_l3_create(context, net, network['network'])
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self._extend_network_dict_provider(context, net)
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# note - exception will rollback entire transaction
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LOG.debug(_("Created network: %s"), net['id'])
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return net
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def update_network(self, context, net_id, network):
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provider._raise_if_updates_provider_attributes(network['network'])
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session = context.session
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with session.begin(subtransactions=True):
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net = super(MellanoxEswitchPlugin, self).update_network(context,
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net_id,
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network)
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self._process_l3_update(context, net, network['network'])
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self._extend_network_dict_provider(context, net)
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return net
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def delete_network(self, context, net_id):
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LOG.debug(_("delete network"))
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session = context.session
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with session.begin(subtransactions=True):
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binding = db.get_network_binding(session, net_id)
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super(MellanoxEswitchPlugin, self).delete_network(context,
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net_id)
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if binding.segmentation_id != constants.LOCAL_VLAN_ID:
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db.release_network(session, binding.physical_network,
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binding.segmentation_id,
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self.network_vlan_ranges)
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# the network_binding record is deleted via cascade from
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# the network record, so explicit removal is not necessary
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self.notifier.network_delete(context, net_id)
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def get_network(self, context, net_id, fields=None):
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session = context.session
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with session.begin(subtransactions=True):
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net = super(MellanoxEswitchPlugin, self).get_network(context,
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net_id,
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None)
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self._extend_network_dict_provider(context, net)
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return self._fields(net, fields)
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def get_networks(self, context, filters=None, fields=None):
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session = context.session
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with session.begin(subtransactions=True):
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nets = super(MellanoxEswitchPlugin, self).get_networks(context,
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filters,
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None)
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for net in nets:
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self._extend_network_dict_provider(context, net)
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# TODO(rkukura): Filter on extended provider attributes.
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nets = self._filter_nets_l3(context, nets, filters)
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return [self._fields(net, fields) for net in nets]
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def _extend_port_dict_binding(self, context, port):
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port_binding = db.get_port_profile_binding(context.session,
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port['id'])
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if port_binding:
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port[portbindings.VIF_TYPE] = port_binding.vnic_type
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port[portbindings.CAPABILITIES] = {
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portbindings.CAP_PORT_FILTER:
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'security-group' in self.supported_extension_aliases}
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binding = db.get_network_binding(context.session,
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port['network_id'])
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fabric = binding.physical_network
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port[portbindings.PROFILE] = {'physical_network': fabric}
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return port
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def create_port(self, context, port):
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LOG.debug(_("create_port with %s"), port)
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vnic_type = self._process_port_binding_create(context, port['port'])
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port = super(MellanoxEswitchPlugin, self).create_port(context, port)
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db.add_port_profile_binding(context.session, port['id'], vnic_type)
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return self._extend_port_dict_binding(context, port)
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def get_port(self, context, id, fields=None):
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port = super(MellanoxEswitchPlugin, self).get_port(context, id, fields)
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return self._fields(self._extend_port_dict_binding(context, port),
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fields)
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def get_ports(self, context, filters=None, fields=None):
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ports = super(MellanoxEswitchPlugin, self).get_ports(
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context, filters, fields)
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return [self._fields(self._extend_port_dict_binding(context, port),
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fields) for port in ports]
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def update_port(self, context, port_id, port):
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original_port = super(MellanoxEswitchPlugin, self).get_port(context,
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port_id)
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session = context.session
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with session.begin(subtransactions=True):
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port = super(MellanoxEswitchPlugin, self).update_port(context,
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port_id,
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port)
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if original_port['admin_state_up'] != port['admin_state_up']:
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binding = db.get_network_binding(context.session,
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port['network_id'])
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self.notifier.port_update(context, port,
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binding.physical_network,
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binding.network_type,
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binding.segmentation_id)
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return self._extend_port_dict_binding(context, port)
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def delete_port(self, context, port_id, l3_port_check=True):
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# if needed, check to see if this is a port owned by
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# and l3-router. If so, we should prevent deletion.
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if l3_port_check:
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self.prevent_l3_port_deletion(context, port_id)
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session = context.session
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with session.begin(subtransactions=True):
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self.disassociate_floatingips(context, port_id)
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return super(MellanoxEswitchPlugin, self).delete_port(context,
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port_id)
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