'Initializes the connection and returns connection information.
Assign any created volume to a compute node/host so that it can be
used from that host.
The  driver returns a driver_volume_type of \'fibre_channel\'.
The target_wwn can be a single entry or a list of wwns that
correspond to the list of remote wwn(s) that will export the volume.
The initiator_target_map is a map that represents the remote wwn(s)
and a list of wwns which are visible to the remote wwn(s).
Example return values:
\'driver_volume_type\': \'fibre_channel\'
\'data\': {
\'target_discovered\': True,
\'target_lun\': 1,
\'target_wwn\': \'1234567890123\',
\'initiator_target_map\': {
\'1122334455667788\': [\'1234567890123\']
or
\'driver_volume_type\': \'fibre_channel\'
\'data\': {
\'target_discovered\': True,
\'target_lun\': 1,
\'target_wwn\': [\'1234567890123\', \'0987654321321\'],
\'initiator_target_map\': {
\'1122334455667788\': [\'1234567890123\',
\'0987654321321\']'

@fczm_utils.add_fc_zone
def initialize_connection(self, volume, connector):

    LOG.debug('initialize_connection    volume    id=%(volume_id)s    connector    initiator=%(initiator)s', {'volume_id': volume['id'], 'initiator': connector['initiator']})
    return self.common.initialize_connection(volume, connector)
