ieee80211_ratectl.h revision 214069 
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: head/sys/net80211/ieee80211_ratectl.h 214069 2010-10-19 18:49:26Z bschmidt $
26 */
27
28enum 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
40struct 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};
57
58void	ieee80211_ratectl_register(int, const struct ieee80211_ratectl *);
59void	ieee80211_ratectl_unregister(int);
60void	ieee80211_ratectl_set(struct ieee80211vap *, int);
61
62MALLOC_DECLARE(M_80211_RATECTL);
63
64static void __inline
65ieee80211_ratectl_init(struct ieee80211vap *vap)
66{
67	vap->iv_rate->ir_init(vap);
68}
69
70static void __inline
71ieee80211_ratectl_deinit(struct ieee80211vap *vap)
72{
73	vap->iv_rate->ir_deinit(vap);
74}
75
76static void __inline
77ieee80211_ratectl_node_init(struct ieee80211_node *ni)
78{
79	const struct ieee80211vap *vap = ni->ni_vap;
80
81	vap->iv_rate->ir_node_init(ni);
82}
83
84static void __inline
85ieee80211_ratectl_node_deinit(struct ieee80211_node *ni)
86{
87	const struct ieee80211vap *vap = ni->ni_vap;
88
89	if (ni->ni_rctls == NULL)	/* ratectl not setup */
90		return;
91	vap->iv_rate->ir_node_deinit(ni);
92}
93
94static int __inline
95ieee80211_ratectl_rate(struct ieee80211_node *ni, void *arg, uint32_t iarg)
96{
97	const struct ieee80211vap *vap = ni->ni_vap;
98
99	if (ni->ni_rctls == NULL)	/* ratectl not setup */
100		return 0;
101	return vap->iv_rate->ir_rate(ni, arg, iarg);
102}
103
104static void __inline
105ieee80211_ratectl_tx_complete(const struct ieee80211vap *vap,
106    const struct ieee80211_node *ni, int status, void *arg1, void *arg2)
107{
108	if (ni->ni_rctls == NULL)	/* ratectl not setup */
109		return;
110	vap->iv_rate->ir_tx_complete(vap, ni, status, arg1, arg2);
111}
112
113static void __inline
114ieee80211_ratectl_tx_update(const struct ieee80211vap *vap,
115    const struct ieee80211_node *ni, void *arg1, void *arg2, void *arg3)
116{
117	if (vap->iv_rate->ir_tx_update == NULL)
118		return;
119	if (ni->ni_rctls == NULL)	/* ratectl not setup */
120		return;
121	vap->iv_rate->ir_tx_update(vap, ni, arg1, arg2, arg3);
122}
123
124static void __inline
125ieee80211_ratectl_setinterval(const struct ieee80211vap *vap, int msecs)
126{
127	if (vap->iv_rate->ir_setinterval == NULL)
128		return;
129	vap->iv_rate->ir_setinterval(vap, msecs);
130}
131