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Felix Fietkauec8aa662010-05-13 16:48:03 +02001/*
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
Felix Fietkauec8aa662010-05-13 16:48:03 +020019#define MCS_GROUP_RATES 8
20
21struct mcs_group {
22 u32 flags;
23 unsigned int streams;
24 unsigned int duration[MCS_GROUP_RATES];
25};
26
John W. Linvillede66bfd2010-06-24 13:03:14 -040027extern const struct mcs_group minstrel_mcs_groups[];
28
Felix Fietkauec8aa662010-05-13 16:48:03 +020029struct minstrel_mcs_group_data {
30 u8 index;
31 u8 column;
32
33 /* bitfield of supported MCS rates of this group */
34 u8 supported;
35
Thomas Huehn59358392014-09-09 23:22:14 +020036 /* sorted rate set within a MCS group*/
37 u8 max_group_tp_rate[MAX_THR_RATES];
38 u8 max_group_prob_rate;
Felix Fietkauec8aa662010-05-13 16:48:03 +020039
40 /* MCS rate statistics */
41 struct minstrel_rate_stats rates[MCS_GROUP_RATES];
42};
43
44struct minstrel_ht_sta {
Felix Fietkaua8566662013-04-22 16:14:42 +020045 struct ieee80211_sta *sta;
46
Felix Fietkauec8aa662010-05-13 16:48:03 +020047 /* 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
Thomas Huehn59358392014-09-09 23:22:14 +020054 /* overall sorted rate set */
55 u8 max_tp_rate[MAX_THR_RATES];
56 u8 max_prob_rate;
Felix Fietkauec8aa662010-05-13 16:48:03 +020057
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
Felix Fietkaua0497f92013-02-13 10:51:08 +010079 u8 cck_supported;
80 u8 cck_supported_short;
81
Felix Fietkauec8aa662010-05-13 16:48:03 +020082 /* MCS rate group info and statistics */
Felix Fietkaua0497f92013-02-13 10:51:08 +010083 struct minstrel_mcs_group_data groups[MINSTREL_MAX_STREAMS * MINSTREL_STREAM_GROUPS + 1];
Felix Fietkauec8aa662010-05-13 16:48:03 +020084};
85
86struct 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
99void minstrel_ht_add_sta_debugfs(void *priv, void *priv_sta, struct dentry *dir);
100void minstrel_ht_remove_sta_debugfs(void *priv, void *priv_sta);
101
102#endif