vmware-nsx/neutron/plugins/ml2/db.py
Irena Berezovsky f36c985e29 Implement Mellanox ML2 MechanismDriver
This commit adds support for currently provided Mellanox Plugin
embedded switch functionality as part of the VPI (Ethernet/InfiniBand)
HCA as an ML2 MechanismDriver.
MechanismDriver adds support for VNIC_DIRECT and VNIC_MACVTAP vnic types.
MechanismDriver provides configurable default vif_type for neutron port created
with default VNIC_NORMAL vnic type till nova api support for vnic_type is available.

Implements blueprint mlnx-ml2-support

Change-Id: I16ad318f095b7af879e1b99dcc7f5f9e92facd2b
2014-03-03 22:43:10 +02:00

137 lines
5.0 KiB
Python

# Copyright (c) 2013 OpenStack Foundation
# 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 sqlalchemy.orm import exc
from neutron.db import api as db_api
from neutron.db import models_v2
from neutron.db import securitygroups_db as sg_db
from neutron.extensions import portbindings
from neutron import manager
from neutron.openstack.common import log
from neutron.openstack.common import uuidutils
from neutron.plugins.ml2 import driver_api as api
from neutron.plugins.ml2 import models
LOG = log.getLogger(__name__)
def add_network_segment(session, network_id, segment):
with session.begin(subtransactions=True):
record = models.NetworkSegment(
id=uuidutils.generate_uuid(),
network_id=network_id,
network_type=segment.get(api.NETWORK_TYPE),
physical_network=segment.get(api.PHYSICAL_NETWORK),
segmentation_id=segment.get(api.SEGMENTATION_ID)
)
session.add(record)
LOG.info(_("Added segment %(id)s of type %(network_type)s for network"
" %(network_id)s"),
{'id': record.id,
'network_type': record.network_type,
'network_id': record.network_id})
def get_network_segments(session, network_id):
with session.begin(subtransactions=True):
records = (session.query(models.NetworkSegment).
filter_by(network_id=network_id))
return [{api.ID: record.id,
api.NETWORK_TYPE: record.network_type,
api.PHYSICAL_NETWORK: record.physical_network,
api.SEGMENTATION_ID: record.segmentation_id}
for record in records]
def ensure_port_binding(session, port_id):
with session.begin(subtransactions=True):
try:
record = (session.query(models.PortBinding).
filter_by(port_id=port_id).
one())
except exc.NoResultFound:
record = models.PortBinding(
port_id=port_id,
vif_type=portbindings.VIF_TYPE_UNBOUND)
session.add(record)
return record
def get_port(session, port_id):
"""Get port record for update within transcation."""
with session.begin(subtransactions=True):
try:
record = (session.query(models_v2.Port).
filter(models_v2.Port.id.startswith(port_id)).
one())
return record
except exc.NoResultFound:
return
except exc.MultipleResultsFound:
LOG.error(_("Multiple ports have port_id starting with %s"),
port_id)
return
def get_port_from_device_mac(device_mac):
LOG.debug(_("get_port_from_device_mac() called for mac %s"), device_mac)
session = db_api.get_session()
qry = session.query(models_v2.Port).filter_by(mac_address=device_mac)
return qry.first()
def get_port_and_sgs(port_id):
"""Get port from database with security group info."""
LOG.debug(_("get_port_and_sgs() called for port_id %s"), port_id)
session = db_api.get_session()
sg_binding_port = sg_db.SecurityGroupPortBinding.port_id
with session.begin(subtransactions=True):
query = session.query(models_v2.Port,
sg_db.SecurityGroupPortBinding.security_group_id)
query = query.outerjoin(sg_db.SecurityGroupPortBinding,
models_v2.Port.id == sg_binding_port)
query = query.filter(models_v2.Port.id.startswith(port_id))
port_and_sgs = query.all()
if not port_and_sgs:
return
port = port_and_sgs[0][0]
plugin = manager.NeutronManager.get_plugin()
port_dict = plugin._make_port_dict(port)
port_dict['security_groups'] = [
sg_id for port_, sg_id in port_and_sgs if sg_id]
port_dict['security_group_rules'] = []
port_dict['security_group_source_groups'] = []
port_dict['fixed_ips'] = [ip['ip_address']
for ip in port['fixed_ips']]
return port_dict
def get_port_binding_host(port_id):
session = db_api.get_session()
with session.begin(subtransactions=True):
try:
query = (session.query(models.PortBinding).
filter(models.PortBinding.port_id.startswith(port_id)).
one())
except exc.NoResultFound:
LOG.debug(_("No binding found for port %(port_id)s"),
{'port_id': port_id})
return
return query.host