1 /* Copyright (c) 2008 The Board of Trustees of The Leland Stanford
4 * We are making the OpenFlow specification and associated documentation
5 * (Software) available for public use and benefit with the expectation
6 * that others will use, modify and enhance the Software and contribute
7 * those enhancements back to the community. However, since we would
8 * like to make the Software available for broadest use, with as few
9 * restrictions as possible permission is hereby granted, free of
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11 * the Software under the copyrights without restriction, including
12 * without limitation the rights to use, copy, modify, merge, publish,
13 * distribute, sublicense, and/or sell copies of the Software, and to
14 * permit persons to whom the Software is furnished to do so, subject to
15 * the following conditions:
17 * The above copyright notice and this permission notice shall be
18 * included in all copies or substantial portions of the Software.
20 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
21 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
22 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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24 * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
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29 * The name and trademarks of copyright holder(s) may NOT be used in
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31 * derivatives without specific, written prior permission.
42 struct ofp_action_header;
45 #define TABLE_LINEAR_MAX_FLOWS 100
46 #define TABLE_HASH_MAX_FLOWS 65536
47 #define TABLE_MAC_MAX_FLOWS 1024
48 #define TABLE_MAC_NUM_BUCKETS 1024
50 /* Set of tables chained together in sequence from cheap to expensive. */
51 #define CHAIN_MAX_TABLES 4
54 struct sw_table *tables[CHAIN_MAX_TABLES];
57 struct sw_chain *chain_create(void);
58 struct sw_flow *chain_lookup(struct sw_chain *, const struct sw_flow_key *);
59 int chain_insert(struct sw_chain *, struct sw_flow *);
60 int chain_modify(struct sw_chain *, const struct sw_flow_key *,
61 uint16_t, int, const struct ofp_action_header *, size_t);
62 int chain_delete(struct sw_chain *, const struct sw_flow_key *, uint16_t, int);
63 void chain_timeout(struct sw_chain *, struct list *deleted);
64 void chain_destroy(struct sw_chain *);