1 /*-
2 * Copyright (c) 2010 Rui Paulo <rpaulo@FreeBSD.org>
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution.
13 *
14 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
15 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
16 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
17 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
18 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
19 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
20 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
21 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
22 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
23 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
24 *
25 * $FreeBSD$
26 */
27
28 enum ieee80211_ratealgs {
29 IEEE80211_RATECTL_AMRR = 0,
30 IEEE80211_RATECTL_RSSADAPT = 1,
31 IEEE80211_RATECTL_ONOE = 2,
32 IEEE80211_RATECTL_SAMPLE = 3,
33 IEEE80211_RATECTL_NONE = 4,
34 IEEE80211_RATECTL_MAX
35 };
36
37 #define IEEE80211_RATECTL_TX_SUCCESS 1
38 #define IEEE80211_RATECTL_TX_FAILURE 0
39
40 struct ieee80211_ratectl {
41 const char *ir_name;
42 int (*ir_attach)(const struct ieee80211vap *);
43 void (*ir_detach)(const struct ieee80211vap *);
44 void (*ir_init)(struct ieee80211vap *);
45 void (*ir_deinit)(struct ieee80211vap *);
46 void (*ir_node_init)(struct ieee80211_node *);
47 void (*ir_node_deinit)(struct ieee80211_node *);
48 int (*ir_rate)(struct ieee80211_node *, void *, uint32_t);
49 void (*ir_tx_complete)(const struct ieee80211vap *,
50 const struct ieee80211_node *, int,
51 void *, void *);
52 void (*ir_tx_update)(const struct ieee80211vap *,
53 const struct ieee80211_node *,
54 void *, void *, void *);
55 void (*ir_setinterval)(const struct ieee80211vap *, int);
56 void (*ir_node_stats)(struct ieee80211_node *ni, struct sbuf *s);
57 };
58
59 void ieee80211_ratectl_register(int, const struct ieee80211_ratectl *);
60 void ieee80211_ratectl_unregister(int);
61 void ieee80211_ratectl_init(struct ieee80211vap *);
62 void ieee80211_ratectl_set(struct ieee80211vap *, int);
63
64 #ifdef MALLOC_DECLARE
65 MALLOC_DECLARE(M_80211_RATECTL);
66 #endif
67
68 static __inline void
ieee80211_ratectl_deinit(struct ieee80211vap * vap)69 ieee80211_ratectl_deinit(struct ieee80211vap *vap)
70 {
71 vap->iv_rate->ir_deinit(vap);
72 }
73
74 static __inline void
ieee80211_ratectl_node_init(struct ieee80211_node * ni)75 ieee80211_ratectl_node_init(struct ieee80211_node *ni)
76 {
77 const struct ieee80211vap *vap = ni->ni_vap;
78
79 vap->iv_rate->ir_node_init(ni);
80 }
81
82 static __inline void
ieee80211_ratectl_node_deinit(struct ieee80211_node * ni)83 ieee80211_ratectl_node_deinit(struct ieee80211_node *ni)
84 {
85 const struct ieee80211vap *vap = ni->ni_vap;
86
87 vap->iv_rate->ir_node_deinit(ni);
88 }
89
90 static __inline int
ieee80211_ratectl_rate(struct ieee80211_node * ni,void * arg,uint32_t iarg)91 ieee80211_ratectl_rate(struct ieee80211_node *ni, void *arg, uint32_t iarg)
92 {
93 const struct ieee80211vap *vap = ni->ni_vap;
94
95 return vap->iv_rate->ir_rate(ni, arg, iarg);
96 }
97
98 static __inline void
ieee80211_ratectl_tx_complete(const struct ieee80211vap * vap,const struct ieee80211_node * ni,int status,void * arg1,void * arg2)99 ieee80211_ratectl_tx_complete(const struct ieee80211vap *vap,
100 const struct ieee80211_node *ni, int status, void *arg1, void *arg2)
101 {
102 vap->iv_rate->ir_tx_complete(vap, ni, status, arg1, arg2);
103 }
104
105 static __inline void
ieee80211_ratectl_tx_update(const struct ieee80211vap * vap,const struct ieee80211_node * ni,void * arg1,void * arg2,void * arg3)106 ieee80211_ratectl_tx_update(const struct ieee80211vap *vap,
107 const struct ieee80211_node *ni, void *arg1, void *arg2, void *arg3)
108 {
109 if (vap->iv_rate->ir_tx_update == NULL)
110 return;
111 vap->iv_rate->ir_tx_update(vap, ni, arg1, arg2, arg3);
112 }
113
114 static __inline void
ieee80211_ratectl_setinterval(const struct ieee80211vap * vap,int msecs)115 ieee80211_ratectl_setinterval(const struct ieee80211vap *vap, int msecs)
116 {
117 if (vap->iv_rate->ir_setinterval == NULL)
118 return;
119 vap->iv_rate->ir_setinterval(vap, msecs);
120 }
121
122 static __inline void
ieee80211_ratectl_node_stats(struct ieee80211_node * ni,struct sbuf * s)123 ieee80211_ratectl_node_stats(struct ieee80211_node *ni, struct sbuf *s)
124 {
125 const struct ieee80211vap *vap = ni->ni_vap;
126
127 if (vap->iv_rate->ir_node_stats == NULL)
128 return;
129 vap->iv_rate->ir_node_stats(ni, s);
130 }
131