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https://github.com/openvswitch/ovs
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7286b1e13d
Based on a patch by Jean Tourrilhes <jt@hpl.hp.com>. According to Jean, besides increasing flexibility, this reduces normalization warnings. Tested-by: Jean Tourrilhes <jt@hpl.hp.com>
72 lines
2.4 KiB
C
72 lines
2.4 KiB
C
/*
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* Copyright (c) 2008, 2010, 2011 Nicira Networks.
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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 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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*/
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#ifndef LEARNING_SWITCH_H
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#define LEARNING_SWITCH_H 1
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#include <stdbool.h>
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#include <stdint.h>
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#include <stdio.h>
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struct ofpbuf;
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struct rconn;
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enum lswitch_mode {
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LSW_NORMAL, /* Always use OFPP_NORMAL. */
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LSW_FLOOD, /* Always use OFPP_FLOOD. */
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LSW_LEARN /* Learn MACs at controller. */
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};
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struct lswitch_config {
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enum lswitch_mode mode;
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/* 0 to use exact-match flow entries,
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* a OFPFW_* bitmask to enable specific wildcards,
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* or UINT32_MAX to use the default wildcards (wildcarding as many fields
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* as possible.
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*
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* Ignored when max_idle < 0 (in which case no flows are set up). */
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uint32_t wildcards;
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/* <0: Process every packet at the controller.
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* >=0: Expire flows after they are unused for 'max_idle' seconds.
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* OFP_FLOW_PERMANENT: Set up permanent flows. */
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int max_idle;
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/* Optionally, a list of one or more "struct ofpbuf"s containing OpenFlow
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* messages to send to the switch at time of connection. Presumably these
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* will be OFPT_FLOW_MOD requests to set up the flow table. */
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const struct list *default_flows;
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/* The OpenFlow queue to use by default. Use UINT32_MAX to avoid
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* specifying a particular queue. */
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uint32_t default_queue;
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/* Maps from a port name to a queue_id (cast to void *). */
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const struct shash *port_queues;
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};
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struct lswitch *lswitch_create(struct rconn *, const struct lswitch_config *);
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void lswitch_set_queue(struct lswitch *sw, uint32_t queue);
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void lswitch_run(struct lswitch *);
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void lswitch_wait(struct lswitch *);
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void lswitch_destroy(struct lswitch *);
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void lswitch_process_packet(struct lswitch *, struct rconn *,
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const struct ofpbuf *);
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#endif /* learning-switch.h */
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