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
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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
23 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
24 * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
25 * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
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29 * The name and trademarks of copyright holder(s) may NOT be used in
30 * advertising or publicity pertaining to the Software or any
31 * derivatives without specific, written prior permission.
34 /* Interface exported by OpenFlow module. */
41 #include "openflow/nicira-ext.h"
52 uint32_t config; /* Some subset of OFPPC_* flags. */
53 uint32_t state; /* Some subset of OFPPS_* flags. */
55 struct netdev *netdev;
56 struct list node; /* Element in datapath.ports. */
57 unsigned long long int rx_packets, tx_packets;
58 unsigned long long int rx_bytes, tx_bytes;
59 unsigned long long int tx_dropped;
63 #define DP_MAX_PORTS 255
64 BUILD_ASSERT_DECL(DP_MAX_PORTS <= OFPP_MAX);
67 /* Remote connections. */
68 struct list remotes; /* All connections (including controller). */
71 struct pvconn **listeners;
76 /* Unique identifier for this datapath */
79 struct sw_chain *chain; /* Forwarding rules. */
81 /* Configuration set from controller. */
83 uint16_t miss_send_len;
85 /* Flag controlling whether Flow End messages are generated. */
86 uint8_t send_flow_end;
89 struct sw_port ports[DP_MAX_PORTS];
90 struct sw_port *local_port; /* OFPP_LOCAL port, if any. */
91 struct list port_list; /* All ports, including local_port. */
94 int dp_new(struct datapath **, uint64_t dpid);
95 int dp_add_port(struct datapath *, const char *netdev);
96 int dp_add_local_port(struct datapath *, const char *netdev);
97 void dp_add_pvconn(struct datapath *, struct pvconn *);
98 void dp_run(struct datapath *);
99 void dp_wait(struct datapath *);
100 void dp_send_error_msg(struct datapath *, const struct sender *,
101 uint16_t, uint16_t, const void *, size_t);
102 void dp_send_flow_end(struct datapath *, struct sw_flow *,
103 enum nx_flow_end_reason);
104 void dp_output_port(struct datapath *, struct ofpbuf *, int in_port,
105 int out_port, bool ignore_no_fwd);
106 void dp_output_control(struct datapath *, struct ofpbuf *, int in_port,
107 size_t max_len, int reason);
109 #endif /* datapath.h */