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ec8aa669 FF |
1 | /* |
2 | * Copyright (C) 2010 Felix Fietkau <nbd@openwrt.org> | |
3 | * | |
4 | * This program is free software; you can redistribute it and/or modify | |
5 | * it under the terms of the GNU General Public License version 2 as | |
6 | * published by the Free Software Foundation. | |
7 | */ | |
8 | ||
9 | #ifndef __RC_MINSTREL_HT_H | |
10 | #define __RC_MINSTREL_HT_H | |
11 | ||
12 | /* | |
13 | * The number of streams can be changed to 2 to reduce code | |
14 | * size and memory footprint. | |
15 | */ | |
16 | #define MINSTREL_MAX_STREAMS 3 | |
17 | #define MINSTREL_STREAM_GROUPS 4 | |
18 | ||
ec8aa669 FF |
19 | #define MCS_GROUP_RATES 8 |
20 | ||
21 | struct mcs_group { | |
22 | u32 flags; | |
23 | unsigned int streams; | |
24 | unsigned int duration[MCS_GROUP_RATES]; | |
25 | }; | |
26 | ||
de66bfd8 JL |
27 | extern const struct mcs_group minstrel_mcs_groups[]; |
28 | ||
ec8aa669 FF |
29 | struct minstrel_mcs_group_data { |
30 | u8 index; | |
31 | u8 column; | |
32 | ||
33 | /* bitfield of supported MCS rates of this group */ | |
34 | u8 supported; | |
35 | ||
36 | /* selected primary rates */ | |
37 | unsigned int max_tp_rate; | |
38 | unsigned int max_tp_rate2; | |
39 | unsigned int max_prob_rate; | |
40 | ||
41 | /* MCS rate statistics */ | |
42 | struct minstrel_rate_stats rates[MCS_GROUP_RATES]; | |
43 | }; | |
44 | ||
45 | struct minstrel_ht_sta { | |
a8566662 FF |
46 | struct ieee80211_sta *sta; |
47 | ||
ec8aa669 FF |
48 | /* ampdu length (average, per sampling interval) */ |
49 | unsigned int ampdu_len; | |
50 | unsigned int ampdu_packets; | |
51 | ||
52 | /* ampdu length (EWMA) */ | |
53 | unsigned int avg_ampdu_len; | |
54 | ||
55 | /* best throughput rate */ | |
56 | unsigned int max_tp_rate; | |
57 | ||
58 | /* second best throughput rate */ | |
59 | unsigned int max_tp_rate2; | |
60 | ||
61 | /* best probability rate */ | |
62 | unsigned int max_prob_rate; | |
965237ab | 63 | unsigned int max_prob_streams; |
ec8aa669 FF |
64 | |
65 | /* time of last status update */ | |
66 | unsigned long stats_update; | |
67 | ||
68 | /* overhead time in usec for each frame */ | |
69 | unsigned int overhead; | |
70 | unsigned int overhead_rtscts; | |
71 | ||
72 | unsigned int total_packets; | |
73 | unsigned int sample_packets; | |
74 | ||
75 | /* tx flags to add for frames for this sta */ | |
76 | u32 tx_flags; | |
77 | ||
78 | u8 sample_wait; | |
79 | u8 sample_tries; | |
80 | u8 sample_count; | |
81 | u8 sample_slow; | |
82 | ||
83 | /* current MCS group to be sampled */ | |
84 | u8 sample_group; | |
85 | ||
a0497f9f FF |
86 | u8 cck_supported; |
87 | u8 cck_supported_short; | |
88 | ||
ec8aa669 | 89 | /* MCS rate group info and statistics */ |
a0497f9f | 90 | struct minstrel_mcs_group_data groups[MINSTREL_MAX_STREAMS * MINSTREL_STREAM_GROUPS + 1]; |
ec8aa669 FF |
91 | }; |
92 | ||
93 | struct minstrel_ht_sta_priv { | |
94 | union { | |
95 | struct minstrel_ht_sta ht; | |
96 | struct minstrel_sta_info legacy; | |
97 | }; | |
98 | #ifdef CONFIG_MAC80211_DEBUGFS | |
99 | struct dentry *dbg_stats; | |
100 | #endif | |
101 | void *ratelist; | |
102 | void *sample_table; | |
103 | bool is_ht; | |
104 | }; | |
105 | ||
106 | void minstrel_ht_add_sta_debugfs(void *priv, void *priv_sta, struct dentry *dir); | |
107 | void minstrel_ht_remove_sta_debugfs(void *priv, void *priv_sta); | |
108 | ||
109 | #endif |