511 lines
23 KiB
Python
511 lines
23 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 neutron.agent import securitygroups_rpc as sg_rpc
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from neutron.api.rpc.agentnotifiers import dhcp_rpc_agent_api
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from neutron.api.rpc.agentnotifiers import l3_rpc_agent_api
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from neutron.api.v2 import attributes
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from neutron.common import constants as q_const
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from neutron.common import exceptions as n_exc
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from neutron.common import topics
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from neutron.common import utils
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from neutron.db import agentschedulers_db
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from neutron.db import db_base_plugin_v2
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from neutron.db import external_net_db
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from neutron.db import extraroute_db
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from neutron.db import l3_agentschedulers_db
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from neutron.db import l3_gwmode_db
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from neutron.db import portbindings_db
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from neutron.db import quota_db # noqa
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from neutron.db import securitygroups_rpc_base as sg_db_rpc
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from neutron.extensions import portbindings
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from neutron.extensions import providernet as provider
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from neutron.openstack.common import importutils
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from neutron.openstack.common import log as logging
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from neutron.openstack.common import rpc
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from neutron.plugins.common import constants as svc_constants
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from neutron.plugins.common import utils as plugin_utils
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from neutron.plugins.mlnx import agent_notify_api
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from neutron.plugins.mlnx.common import constants
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from neutron.plugins.mlnx.db import mlnx_db_v2 as db
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from neutron.plugins.mlnx import rpc_callbacks
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LOG = logging.getLogger(__name__)
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class MellanoxEswitchPlugin(db_base_plugin_v2.NeutronDbPluginV2,
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external_net_db.External_net_db_mixin,
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extraroute_db.ExtraRoute_db_mixin,
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l3_gwmode_db.L3_NAT_db_mixin,
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sg_db_rpc.SecurityGroupServerRpcMixin,
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l3_agentschedulers_db.L3AgentSchedulerDbMixin,
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agentschedulers_db.DhcpAgentSchedulerDbMixin,
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portbindings_db.PortBindingMixin):
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"""Realization of Neutron 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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A new VLAN is created for each network. An agent is relied upon
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to perform the actual HCA configuration on each host.
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The provider extension is also supported.
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The port binding extension enables an external application relay
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information to and from the plugin.
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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", "external-net", "router",
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"ext-gw-mode", "binding", "quotas",
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"security-group", "agent", "extraroute",
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"l3_agent_scheduler",
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"dhcp_agent_scheduler"]
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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_by_config(aliases)
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self._aliases = aliases
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return self._aliases
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def __init__(self):
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"""Start Mellanox Neutron Plugin."""
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super(MellanoxEswitchPlugin, self).__init__()
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self._parse_network_config()
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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.base_binding_dict = {
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portbindings.VIF_TYPE: self.vnic_type,
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portbindings.VIF_DETAILS: {
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# TODO(rkukura): Replace with new VIF security details
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portbindings.CAP_PORT_FILTER:
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'security-group' in self.supported_extension_aliases}}
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self._setup_rpc()
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self.network_scheduler = importutils.import_object(
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cfg.CONF.network_scheduler_driver
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)
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self.router_scheduler = importutils.import_object(
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cfg.CONF.router_scheduler_driver
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)
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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.service_topics = {svc_constants.CORE: topics.PLUGIN,
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svc_constants.L3_ROUTER_NAT: topics.L3PLUGIN}
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self.conn = rpc.create_connection(new=True)
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self.callbacks = rpc_callbacks.MlnxRpcCallbacks()
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self.dispatcher = self.callbacks.create_rpc_dispatcher()
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for svc_topic in self.service_topics.values():
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self.conn.create_consumer(svc_topic, self.dispatcher, 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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self.notifier = agent_notify_api.AgentNotifierApi(topics.AGENT)
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self.agent_notifiers[q_const.AGENT_TYPE_DHCP] = (
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dhcp_rpc_agent_api.DhcpAgentNotifyAPI()
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)
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self.agent_notifiers[q_const.AGENT_TYPE_L3] = (
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l3_rpc_agent_api.L3AgentNotify
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)
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def _parse_network_config(self):
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self._parse_physical_network_types()
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self._parse_network_vlan_ranges()
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for network in self.network_vlan_ranges.keys():
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if not self.phys_network_type_maps.get(network):
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self.phys_network_type_maps[network] = self.physical_net_type
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def _parse_physical_network_types(self):
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"""Parse physical network types configuration.
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Verify default physical network type is valid.
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Parse physical network mappings.
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"""
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self.physical_net_type = cfg.CONF.MLNX.physical_network_type
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if self.physical_net_type not in (constants.TYPE_ETH,
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constants.TYPE_IB):
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LOG.error(_("Invalid physical network type %(type)s."
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"Server terminated!"), {'type': self.physical_net_type})
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raise SystemExit(1)
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try:
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self.phys_network_type_maps = utils.parse_mappings(
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cfg.CONF.MLNX.physical_network_type_mappings)
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except ValueError as e:
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LOG.error(_("Parsing physical_network_type failed: %s."
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" Server terminated!"), e)
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raise SystemExit(1)
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for network, type in self.phys_network_type_maps.iteritems():
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if type not in (constants.TYPE_ETH, constants.TYPE_IB):
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LOG.error(_("Invalid physical network type %(type)s "
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" for network %(net)s. Server terminated!"),
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{'net': network, 'type': type})
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raise SystemExit(1)
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LOG.info(_("Physical Network type mappings: %s"),
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self.phys_network_type_maps)
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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 _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 == svc_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 == svc_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 [svc_constants.TYPE_VLAN,
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svc_constants.TYPE_LOCAL,
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svc_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 n_exc.InvalidInput(error_message=msg)
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elif network_type == svc_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 == svc_constants.TYPE_VLAN:
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self._process_vlan_net(segmentation_id, segmentation_id_set)
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elif network_type == svc_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 n_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 n_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 n_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 n_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 n_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 n_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 [svc_constants.TYPE_VLAN,
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svc_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 n_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 n_exc.InvalidInput(error_message=msg)
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return physical_network
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def _check_port_binding_for_net_type(self, vnic_type, net_type):
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"""
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VIF_TYPE_DIRECT is valid only for Ethernet fabric
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"""
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if net_type == constants.TYPE_ETH:
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return vnic_type in (constants.VIF_TYPE_DIRECT,
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constants.VIF_TYPE_HOSTDEV)
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elif net_type == constants.TYPE_IB:
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return vnic_type == constants.VIF_TYPE_HOSTDEV
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return False
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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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net_binding = db.get_network_binding(context.session,
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attrs.get('network_id'))
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phy_net = net_binding.physical_network
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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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vnic_type = binding_profile[constants.VNIC_TYPE]
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phy_net_type = self.phys_network_type_maps[phy_net]
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if vnic_type in (constants.VIF_TYPE_DIRECT,
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constants.VIF_TYPE_HOSTDEV):
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if self._check_port_binding_for_net_type(vnic_type,
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phy_net_type):
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self.base_binding_dict[portbindings.VIF_TYPE] = vnic_type
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return vnic_type
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else:
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msg = (_("Unsupported vnic type %(vnic_type)s "
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"for physical network type %(net_type)s") %
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{'vnic_type': vnic_type, 'net_type': phy_net_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 n_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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#set up default security groups
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tenant_id = self._get_tenant_id_for_create(
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context, network['network'])
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self._ensure_default_security_group(context, tenant_id)
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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 == svc_constants.TYPE_NONE:
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raise n_exc.TenantNetworksDisabled()
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elif network_type == svc_constants.TYPE_VLAN:
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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 [svc_constants.TYPE_VLAN,
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svc_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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LOG.debug(_("Update 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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sorts=None, limit=None, marker=None, page_reverse=False):
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session = context.session
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with session.begin(subtransactions=True):
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nets = super(MellanoxEswitchPlugin,
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self).get_networks(context, filters, None, sorts,
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limit, marker, page_reverse)
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for net in nets:
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self._extend_network_dict_provider(context, net)
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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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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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session = context.session
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port_data = port['port']
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with session.begin(subtransactions=True):
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self._ensure_default_security_group_on_port(context, port)
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sgids = self._get_security_groups_on_port(context, port)
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# Set port status as 'DOWN'. This will be updated by agent
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port['port']['status'] = q_const.PORT_STATUS_DOWN
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vnic_type = self._process_port_binding_create(context,
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port['port'])
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port = super(MellanoxEswitchPlugin,
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self).create_port(context, port)
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self._process_portbindings_create_and_update(context,
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port_data,
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port)
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db.add_port_profile_binding(context.session, port['id'], vnic_type)
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self._process_port_create_security_group(
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context, port, sgids)
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self.notify_security_groups_member_updated(context, port)
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return self._extend_port_dict_binding(context, port)
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def get_port(self, context, id, fields=None):
|
|
port = super(MellanoxEswitchPlugin, self).get_port(context,
|
|
id,
|
|
fields)
|
|
self._extend_port_dict_binding(context, port)
|
|
return self._fields(port, fields)
|
|
|
|
def get_ports(self, context, filters=None, fields=None,
|
|
sorts=None, limit=None, marker=None, page_reverse=False):
|
|
res_ports = []
|
|
ports = super(MellanoxEswitchPlugin,
|
|
self).get_ports(context, filters, fields, sorts,
|
|
limit, marker, page_reverse)
|
|
for port in ports:
|
|
port = self._extend_port_dict_binding(context, port)
|
|
res_ports.append(self._fields(port, fields))
|
|
return res_ports
|
|
|
|
def update_port(self, context, port_id, port):
|
|
original_port = self.get_port(context, port_id)
|
|
session = context.session
|
|
need_port_update_notify = False
|
|
|
|
with session.begin(subtransactions=True):
|
|
updated_port = super(MellanoxEswitchPlugin, self).update_port(
|
|
context, port_id, port)
|
|
self._process_portbindings_create_and_update(context,
|
|
port['port'],
|
|
updated_port)
|
|
need_port_update_notify = self.update_security_group_on_port(
|
|
context, port_id, port, original_port, updated_port)
|
|
|
|
need_port_update_notify |= self.is_security_group_member_updated(
|
|
context, original_port, updated_port)
|
|
|
|
if original_port['admin_state_up'] != updated_port['admin_state_up']:
|
|
need_port_update_notify = True
|
|
|
|
if need_port_update_notify:
|
|
binding = db.get_network_binding(context.session,
|
|
updated_port['network_id'])
|
|
self.notifier.port_update(context, updated_port,
|
|
binding.physical_network,
|
|
binding.network_type,
|
|
binding.segmentation_id)
|
|
return self._extend_port_dict_binding(context, updated_port)
|
|
|
|
def delete_port(self, context, port_id, l3_port_check=True):
|
|
# if needed, check to see if this is a port owned by
|
|
# and l3-router. If so, we should prevent deletion.
|
|
if l3_port_check:
|
|
self.prevent_l3_port_deletion(context, port_id)
|
|
|
|
session = context.session
|
|
with session.begin(subtransactions=True):
|
|
self.disassociate_floatingips(context, port_id)
|
|
port = self.get_port(context, port_id)
|
|
self._delete_port_security_group_bindings(context, port_id)
|
|
super(MellanoxEswitchPlugin, self).delete_port(context, port_id)
|
|
|
|
self.notify_security_groups_member_updated(context, port)
|