'SAN lookup for end devices.
Look up each SAN configured and return a map of SAN (fabric IP)
to list of target WWNs visible to the fabric.'

def get_san_context(self, target_wwn_list):

    fabric_map = self.driver.get_san_context(target_wwn_list)
    LOG.debug('Got    SAN    context:    %(fabricmap)s', {'fabricmap': fabric_map})
    return fabric_map
