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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 | ||
5935839a | 36 | /* sorted rate set within a MCS group*/ |
d4d141ca KB |
37 | u16 max_group_tp_rate[MAX_THR_RATES]; |
38 | u16 max_group_prob_rate; | |
ec8aa669 FF |
39 | |
40 | /* MCS rate statistics */ | |
41 | struct minstrel_rate_stats rates[MCS_GROUP_RATES]; | |
42 | }; | |
43 | ||
44 | struct minstrel_ht_sta { | |
a8566662 FF |
45 | struct ieee80211_sta *sta; |
46 | ||
ec8aa669 FF |
47 | /* ampdu length (average, per sampling interval) */ |
48 | unsigned int ampdu_len; | |
49 | unsigned int ampdu_packets; | |
50 | ||
51 | /* ampdu length (EWMA) */ | |
52 | unsigned int avg_ampdu_len; | |
53 | ||
5935839a | 54 | /* overall sorted rate set */ |
d4d141ca KB |
55 | u16 max_tp_rate[MAX_THR_RATES]; |
56 | u16 max_prob_rate; | |
ec8aa669 FF |
57 | |
58 | /* time of last status update */ | |
59 | unsigned long stats_update; | |
60 | ||
61 | /* overhead time in usec for each frame */ | |
62 | unsigned int overhead; | |
63 | unsigned int overhead_rtscts; | |
64 | ||
65 | unsigned int total_packets; | |
66 | unsigned int sample_packets; | |
67 | ||
68 | /* tx flags to add for frames for this sta */ | |
69 | u32 tx_flags; | |
70 | ||
71 | u8 sample_wait; | |
72 | u8 sample_tries; | |
73 | u8 sample_count; | |
74 | u8 sample_slow; | |
75 | ||
76 | /* current MCS group to be sampled */ | |
77 | u8 sample_group; | |
78 | ||
a0497f9f FF |
79 | u8 cck_supported; |
80 | u8 cck_supported_short; | |
81 | ||
ec8aa669 | 82 | /* MCS rate group info and statistics */ |
a0497f9f | 83 | struct minstrel_mcs_group_data groups[MINSTREL_MAX_STREAMS * MINSTREL_STREAM_GROUPS + 1]; |
ec8aa669 FF |
84 | }; |
85 | ||
86 | struct minstrel_ht_sta_priv { | |
87 | union { | |
88 | struct minstrel_ht_sta ht; | |
89 | struct minstrel_sta_info legacy; | |
90 | }; | |
91 | #ifdef CONFIG_MAC80211_DEBUGFS | |
92 | struct dentry *dbg_stats; | |
93 | #endif | |
94 | void *ratelist; | |
95 | void *sample_table; | |
96 | bool is_ht; | |
97 | }; | |
98 | ||
99 | void minstrel_ht_add_sta_debugfs(void *priv, void *priv_sta, struct dentry *dir); | |
100 | void minstrel_ht_remove_sta_debugfs(void *priv, void *priv_sta); | |
101 | ||
102 | #endif |