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d2912cb1 | 1 | /* SPDX-License-Identifier: GPL-2.0-only */ |
ec8aa669 FF |
2 | /* |
3 | * Copyright (C) 2010 Felix Fietkau <nbd@openwrt.org> | |
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4 | */ |
5 | ||
6 | #ifndef __RC_MINSTREL_HT_H | |
7 | #define __RC_MINSTREL_HT_H | |
8 | ||
9 | /* | |
10 | * The number of streams can be changed to 2 to reduce code | |
11 | * size and memory footprint. | |
12 | */ | |
7f2e12e1 | 13 | #define MINSTREL_MAX_STREAMS 4 |
8a0ee4fe | 14 | #define MINSTREL_HT_STREAM_GROUPS 4 /* BW(=2) * SGI(=2) */ |
9208247d | 15 | #define MINSTREL_VHT_STREAM_GROUPS 6 /* BW(=3) * SGI(=2) */ |
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16 | |
17 | #define MINSTREL_HT_GROUPS_NB (MINSTREL_MAX_STREAMS * \ | |
18 | MINSTREL_HT_STREAM_GROUPS) | |
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19 | #define MINSTREL_VHT_GROUPS_NB (MINSTREL_MAX_STREAMS * \ |
20 | MINSTREL_VHT_STREAM_GROUPS) | |
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21 | #define MINSTREL_CCK_GROUPS_NB 1 |
22 | #define MINSTREL_GROUPS_NB (MINSTREL_HT_GROUPS_NB + \ | |
9208247d | 23 | MINSTREL_VHT_GROUPS_NB + \ |
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24 | MINSTREL_CCK_GROUPS_NB) |
25 | ||
26 | #define MINSTREL_HT_GROUP_0 0 | |
27 | #define MINSTREL_CCK_GROUP (MINSTREL_HT_GROUP_0 + MINSTREL_HT_GROUPS_NB) | |
9208247d | 28 | #define MINSTREL_VHT_GROUP_0 (MINSTREL_CCK_GROUP + 1) |
ec8aa669 | 29 | |
9208247d | 30 | #define MCS_GROUP_RATES 10 |
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31 | |
32 | struct mcs_group { | |
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33 | u16 flags; |
34 | u8 streams; | |
35 | u8 shift; | |
48cb3952 | 36 | u8 bw; |
202df504 | 37 | u16 duration[MCS_GROUP_RATES]; |
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38 | }; |
39 | ||
de66bfd8 JL |
40 | extern const struct mcs_group minstrel_mcs_groups[]; |
41 | ||
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42 | struct minstrel_mcs_group_data { |
43 | u8 index; | |
44 | u8 column; | |
45 | ||
5935839a | 46 | /* sorted rate set within a MCS group*/ |
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47 | u16 max_group_tp_rate[MAX_THR_RATES]; |
48 | u16 max_group_prob_rate; | |
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49 | |
50 | /* MCS rate statistics */ | |
51 | struct minstrel_rate_stats rates[MCS_GROUP_RATES]; | |
52 | }; | |
53 | ||
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54 | enum minstrel_sample_mode { |
55 | MINSTREL_SAMPLE_IDLE, | |
56 | MINSTREL_SAMPLE_ACTIVE, | |
57 | MINSTREL_SAMPLE_PENDING, | |
58 | }; | |
59 | ||
ec8aa669 | 60 | struct minstrel_ht_sta { |
a8566662 FF |
61 | struct ieee80211_sta *sta; |
62 | ||
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63 | /* ampdu length (average, per sampling interval) */ |
64 | unsigned int ampdu_len; | |
65 | unsigned int ampdu_packets; | |
66 | ||
67 | /* ampdu length (EWMA) */ | |
68 | unsigned int avg_ampdu_len; | |
69 | ||
5935839a | 70 | /* overall sorted rate set */ |
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71 | u16 max_tp_rate[MAX_THR_RATES]; |
72 | u16 max_prob_rate; | |
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73 | |
74 | /* time of last status update */ | |
9134073b | 75 | unsigned long last_stats_update; |
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76 | |
77 | /* overhead time in usec for each frame */ | |
78 | unsigned int overhead; | |
79 | unsigned int overhead_rtscts; | |
80 | ||
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81 | unsigned int total_packets_last; |
82 | unsigned int total_packets_cur; | |
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83 | unsigned int total_packets; |
84 | unsigned int sample_packets; | |
85 | ||
86 | /* tx flags to add for frames for this sta */ | |
87 | u32 tx_flags; | |
88 | ||
89 | u8 sample_wait; | |
90 | u8 sample_tries; | |
91 | u8 sample_count; | |
92 | u8 sample_slow; | |
93 | ||
48cb3952 FF |
94 | enum minstrel_sample_mode sample_mode; |
95 | u16 sample_rate; | |
96 | ||
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97 | /* current MCS group to be sampled */ |
98 | u8 sample_group; | |
99 | ||
a0497f9f FF |
100 | u8 cck_supported; |
101 | u8 cck_supported_short; | |
102 | ||
41d08583 FF |
103 | /* Bitfield of supported MCS rates of all groups */ |
104 | u16 supported[MINSTREL_GROUPS_NB]; | |
105 | ||
ec8aa669 | 106 | /* MCS rate group info and statistics */ |
8a0ee4fe | 107 | struct minstrel_mcs_group_data groups[MINSTREL_GROUPS_NB]; |
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108 | }; |
109 | ||
110 | struct minstrel_ht_sta_priv { | |
111 | union { | |
112 | struct minstrel_ht_sta ht; | |
113 | struct minstrel_sta_info legacy; | |
114 | }; | |
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115 | void *ratelist; |
116 | void *sample_table; | |
117 | bool is_ht; | |
118 | }; | |
119 | ||
120 | void minstrel_ht_add_sta_debugfs(void *priv, void *priv_sta, struct dentry *dir); | |
50e55a8e TH |
121 | int minstrel_ht_get_tp_avg(struct minstrel_ht_sta *mi, int group, int rate, |
122 | int prob_ewma); | |
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123 | |
124 | #endif |