"""Manage flooding/learning on datapaths."""
# Copyright (C) 2013 Nippon Telegraph and Telephone Corporation.
# Copyright (C) 2015 Brad Cowie, Christopher Lorier and Joe Stringer.
# Copyright (C) 2015 Research and Education Advanced Network New Zealand Ltd.
# Copyright (C) 2015--2019 The Contributors
#
# 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 faucet.valve_switch_standalone import (
ValveSwitchManager, ValveSwitchFlowRemovedManager)
from faucet.valve_switch_stack import (
ValveSwitchStackManagerNoReflection, ValveSwitchStackManagerReflection)
[docs]def valve_switch_factory(logger, dp, pipeline): # pylint: disable=invalid-name
"""Return switch flood/learning manager based on datapath configuration.
Args:
logger: logger instance.
dp: DP instance.
pipeline: ValvePipeline instance.
Returns:
switch manager instance.
"""
restricted_bcast_arpnd = bool(dp.restricted_bcast_arpnd_ports())
eth_dst_hairpin_table = dp.tables.get('eth_dst_hairpin', None)
vlan_acl_table = dp.tables.get('vlan_acl', None)
if dp.stack_graph:
switch_class = ValveSwitchStackManagerNoReflection
if dp.stack_root_flood_reflection:
switch_class = ValveSwitchStackManagerReflection
logger.info('Using stacking root flood reflection')
else:
logger.info('Not using stacking root flood reflection')
return switch_class(
logger, dp.ports, dp.vlans,
dp.tables['vlan'], vlan_acl_table, dp.tables['eth_src'], dp.tables['eth_dst'],
eth_dst_hairpin_table, dp.tables['flood'], dp.classification_table,
pipeline, dp.group_table, dp.groups,
dp.combinatorial_port_flood, dp.canonical_port_order,
restricted_bcast_arpnd, dp.has_externals,
dp.learn_ban_timeout, dp.timeout, dp.learn_jitter,
dp.cache_update_guard_time, dp.idle_dst,
dp.stack_ports,
dp.shortest_path_to_root, dp.shortest_path_port,
dp.is_stack_root, dp.is_stack_root_candidate,
dp.is_stack_edge, dp.stack_graph)
if dp.use_idle_timeout:
switch_class = ValveSwitchFlowRemovedManager
else:
switch_class = ValveSwitchManager
return switch_class(
logger, dp.ports, dp.vlans,
dp.tables['vlan'], vlan_acl_table, dp.tables['eth_src'], dp.tables['eth_dst'],
eth_dst_hairpin_table, dp.tables['flood'], dp.classification_table,
pipeline, dp.group_table, dp.groups,
dp.combinatorial_port_flood, dp.canonical_port_order,
restricted_bcast_arpnd, dp.has_externals,
dp.learn_ban_timeout, dp.timeout, dp.learn_jitter, dp.cache_update_guard_time, dp.idle_dst)