blob: 9b16e9de9923758fe52c49279027f1fbe0b81462 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
|
/*
* Copyright (C) 2010 Felix Fietkau <nbd@openwrt.org>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*/
#ifndef __RC_MINSTREL_HT_H
#define __RC_MINSTREL_HT_H
/*
* The number of streams can be changed to 2 to reduce code
* size and memory footprint.
*/
#define MINSTREL_MAX_STREAMS 3
#define MINSTREL_STREAM_GROUPS 4
#define MCS_GROUP_RATES 8
struct mcs_group {
u32 flags;
unsigned int streams;
unsigned int duration[MCS_GROUP_RATES];
};
extern const struct mcs_group minstrel_mcs_groups[];
struct minstrel_rate_stats {
/* current / last sampling period attempts/success counters */
unsigned int attempts, last_attempts;
unsigned int success, last_success;
/* total attempts/success counters */
u64 att_hist, succ_hist;
/* current throughput */
unsigned int cur_tp;
/* packet delivery probabilities */
unsigned int cur_prob, probability;
/* maximum retry counts */
unsigned int retry_count;
unsigned int retry_count_rtscts;
bool retry_updated;
u8 sample_skipped;
};
struct minstrel_mcs_group_data {
u8 index;
u8 column;
/* bitfield of supported MCS rates of this group */
u8 supported;
/* selected primary rates */
unsigned int max_tp_rate;
unsigned int max_tp_rate2;
unsigned int max_prob_rate;
/* MCS rate statistics */
struct minstrel_rate_stats rates[MCS_GROUP_RATES];
};
struct minstrel_ht_sta {
/* ampdu length (average, per sampling interval) */
unsigned int ampdu_len;
unsigned int ampdu_packets;
/* ampdu length (EWMA) */
unsigned int avg_ampdu_len;
/* best throughput rate */
unsigned int max_tp_rate;
/* second best throughput rate */
unsigned int max_tp_rate2;
/* best probability rate */
unsigned int max_prob_rate;
unsigned int max_prob_streams;
/* time of last status update */
unsigned long stats_update;
/* overhead time in usec for each frame */
unsigned int overhead;
unsigned int overhead_rtscts;
unsigned int total_packets;
unsigned int sample_packets;
/* tx flags to add for frames for this sta */
u32 tx_flags;
u8 sample_wait;
u8 sample_tries;
u8 sample_count;
u8 sample_slow;
/* current MCS group to be sampled */
u8 sample_group;
u8 cck_supported;
u8 cck_supported_short;
/* MCS rate group info and statistics */
struct minstrel_mcs_group_data groups[MINSTREL_MAX_STREAMS * MINSTREL_STREAM_GROUPS + 1];
};
struct minstrel_ht_sta_priv {
union {
struct minstrel_ht_sta ht;
struct minstrel_sta_info legacy;
};
#ifdef CONFIG_MAC80211_DEBUGFS
struct dentry *dbg_stats;
#endif
void *ratelist;
void *sample_table;
bool is_ht;
};
void minstrel_ht_add_sta_debugfs(void *priv, void *priv_sta, struct dentry *dir);
void minstrel_ht_remove_sta_debugfs(void *priv, void *priv_sta);
#endif
|
