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d2912cb1 | 1 | /* SPDX-License-Identifier: GPL-2.0-only */ |
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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; | |
36 | u16 duration[MCS_GROUP_RATES]; | |
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37 | }; |
38 | ||
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39 | extern const struct mcs_group minstrel_mcs_groups[]; |
40 | ||
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41 | struct minstrel_mcs_group_data { |
42 | u8 index; | |
43 | u8 column; | |
44 | ||
5935839a | 45 | /* sorted rate set within a MCS group*/ |
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46 | u16 max_group_tp_rate[MAX_THR_RATES]; |
47 | u16 max_group_prob_rate; | |
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48 | |
49 | /* MCS rate statistics */ | |
50 | struct minstrel_rate_stats rates[MCS_GROUP_RATES]; | |
51 | }; | |
52 | ||
53 | struct minstrel_ht_sta { | |
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54 | struct ieee80211_sta *sta; |
55 | ||
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56 | /* ampdu length (average, per sampling interval) */ |
57 | unsigned int ampdu_len; | |
58 | unsigned int ampdu_packets; | |
59 | ||
60 | /* ampdu length (EWMA) */ | |
61 | unsigned int avg_ampdu_len; | |
62 | ||
5935839a | 63 | /* overall sorted rate set */ |
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64 | u16 max_tp_rate[MAX_THR_RATES]; |
65 | u16 max_prob_rate; | |
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66 | |
67 | /* time of last status update */ | |
9134073b | 68 | unsigned long last_stats_update; |
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69 | |
70 | /* overhead time in usec for each frame */ | |
71 | unsigned int overhead; | |
72 | unsigned int overhead_rtscts; | |
73 | ||
74 | unsigned int total_packets; | |
75 | unsigned int sample_packets; | |
76 | ||
77 | /* tx flags to add for frames for this sta */ | |
78 | u32 tx_flags; | |
79 | ||
80 | u8 sample_wait; | |
81 | u8 sample_tries; | |
82 | u8 sample_count; | |
83 | u8 sample_slow; | |
84 | ||
85 | /* current MCS group to be sampled */ | |
86 | u8 sample_group; | |
87 | ||
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88 | u8 cck_supported; |
89 | u8 cck_supported_short; | |
90 | ||
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91 | /* Bitfield of supported MCS rates of all groups */ |
92 | u16 supported[MINSTREL_GROUPS_NB]; | |
93 | ||
ec8aa669 | 94 | /* MCS rate group info and statistics */ |
8a0ee4fe | 95 | struct minstrel_mcs_group_data groups[MINSTREL_GROUPS_NB]; |
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96 | }; |
97 | ||
98 | struct minstrel_ht_sta_priv { | |
99 | union { | |
100 | struct minstrel_ht_sta ht; | |
101 | struct minstrel_sta_info legacy; | |
102 | }; | |
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103 | void *ratelist; |
104 | void *sample_table; | |
105 | bool is_ht; | |
106 | }; | |
107 | ||
108 | void minstrel_ht_add_sta_debugfs(void *priv, void *priv_sta, struct dentry *dir); | |
50e55a8e TH |
109 | int minstrel_ht_get_tp_avg(struct minstrel_ht_sta *mi, int group, int rate, |
110 | int prob_ewma); | |
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111 | |
112 | #endif |