143 lines
5.5 KiB
Python
143 lines
5.5 KiB
Python
# 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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from neutron.openstack.common import importutils
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from neutron.openstack.common import jsonutils
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from neutron.openstack.common import log as logging
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from neutron.plugins.mlnx.common import comm_utils
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from neutron.plugins.mlnx.common import exceptions
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zmq = importutils.try_import('eventlet.green.zmq')
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LOG = logging.getLogger(__name__)
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class EswitchUtils(object):
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def __init__(self, daemon_endpoint, timeout):
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if not zmq:
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msg = _("Failed to import eventlet.green.zmq. "
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"Won't connect to eSwitchD - exiting...")
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LOG.error(msg)
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raise SystemExit(1)
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self.__conn = None
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self.daemon = daemon_endpoint
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self.timeout = timeout
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@property
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def _conn(self):
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if self.__conn is None:
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context = zmq.Context()
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socket = context.socket(zmq.REQ)
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socket.setsockopt(zmq.LINGER, 0)
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socket.connect(self.daemon)
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self.__conn = socket
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self.poller = zmq.Poller()
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self.poller.register(self._conn, zmq.POLLIN)
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return self.__conn
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@comm_utils.RetryDecorator(exceptions.RequestTimeout)
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def send_msg(self, msg):
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self._conn.send(msg)
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socks = dict(self.poller.poll(self.timeout))
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if socks.get(self._conn) == zmq.POLLIN:
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recv_msg = self._conn.recv()
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response = self.parse_response_msg(recv_msg)
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return response
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else:
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self._conn.setsockopt(zmq.LINGER, 0)
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self._conn.close()
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self.poller.unregister(self._conn)
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self.__conn = None
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raise exceptions.RequestTimeout()
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def parse_response_msg(self, recv_msg):
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msg = jsonutils.loads(recv_msg)
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if msg['status'] == 'OK':
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if 'response' in msg:
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return msg.get('response')
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return
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elif msg['status'] == 'FAIL':
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msg_dict = dict(action=msg['action'], reason=msg['reason'])
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error_msg = _("Action %(action)s failed: %(reason)s") % msg_dict
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else:
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error_msg = _("Unknown operation status %s") % msg['status']
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LOG.error(error_msg)
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raise exceptions.OperationFailed(err_msg=error_msg)
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def get_attached_vnics(self):
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LOG.debug(_("get_attached_vnics"))
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msg = jsonutils.dumps({'action': 'get_vnics', 'fabric': '*'})
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vnics = self.send_msg(msg)
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return vnics
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def set_port_vlan_id(self, physical_network,
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segmentation_id, port_mac):
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LOG.debug(_("Set Vlan %(segmentation_id)s on Port %(port_mac)s "
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"on Fabric %(physical_network)s"),
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{'port_mac': port_mac,
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'segmentation_id': segmentation_id,
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'physical_network': physical_network})
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msg = jsonutils.dumps({'action': 'set_vlan',
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'fabric': physical_network,
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'port_mac': port_mac,
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'vlan': segmentation_id})
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self.send_msg(msg)
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def define_fabric_mappings(self, interface_mapping):
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for fabric, phy_interface in interface_mapping.iteritems():
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LOG.debug(_("Define Fabric %(fabric)s on interface %(ifc)s"),
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{'fabric': fabric,
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'ifc': phy_interface})
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msg = jsonutils.dumps({'action': 'define_fabric_mapping',
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'fabric': fabric,
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'interface': phy_interface})
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self.send_msg(msg)
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def port_up(self, fabric, port_mac):
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LOG.debug(_("Port Up for %(port_mac)s on fabric %(fabric)s"),
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{'port_mac': port_mac, 'fabric': fabric})
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msg = jsonutils.dumps({'action': 'port_up',
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'fabric': fabric,
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'ref_by': 'mac_address',
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'mac': 'port_mac'})
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self.send_msg(msg)
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def port_down(self, fabric, port_mac):
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LOG.debug(_("Port Down for %(port_mac)s on fabric %(fabric)s"),
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{'port_mac': port_mac, 'fabric': fabric})
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msg = jsonutils.dumps({'action': 'port_down',
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'fabric': fabric,
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'ref_by': 'mac_address',
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'mac': port_mac})
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self.send_msg(msg)
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def port_release(self, fabric, port_mac):
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LOG.debug(_("Port Release for %(port_mac)s on fabric %(fabric)s"),
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{'port_mac': port_mac, 'fabric': fabric})
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msg = jsonutils.dumps({'action': 'port_release',
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'fabric': fabric,
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'ref_by': 'mac_address',
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'mac': port_mac})
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self.send_msg(msg)
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def get_eswitch_ports(self, fabric):
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# TODO(irena) - to implement for next phase
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return {}
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def get_eswitch_id(self, fabric):
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# TODO(irena) - to implement for next phase
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return ""
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