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gerrit-public.fairphone.software / kernel / msm-4.9 / f8d71be5553a3fbc20363243ecfc11dcdd1e18fe / . / net / mac80211 / rc80211_minstrel_ht.h
blob: f2217d6aa0c2ee28b158616711b99895b250df44 [file] [log] [blame]
Felix Fietkauec8aa662010-05-13 16:48:03 +0200[diff] [blame]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 */
Karl Beldan8a0ee4f2014-10-20 15:46:00 +0200[diff] [blame]16#define MINSTREL_MAX_STREAMS 3
17#define MINSTREL_HT_STREAM_GROUPS 4 /* BW(=2) * SGI(=2) */
Karl Beldan92082472014-10-21 10:38:38 +0200[diff] [blame]18#ifdef CONFIG_MAC80211_RC_MINSTREL_VHT
19#define MINSTREL_VHT_STREAM_GROUPS 6 /* BW(=3) * SGI(=2) */
20#else
21#define MINSTREL_VHT_STREAM_GROUPS 0
22#endif
Karl Beldan8a0ee4f2014-10-20 15:46:00 +0200[diff] [blame]23
24#define MINSTREL_HT_GROUPS_NB (MINSTREL_MAX_STREAMS * \
25 MINSTREL_HT_STREAM_GROUPS)
Karl Beldan92082472014-10-21 10:38:38 +0200[diff] [blame]26#define MINSTREL_VHT_GROUPS_NB (MINSTREL_MAX_STREAMS * \
27 MINSTREL_VHT_STREAM_GROUPS)
Karl Beldan8a0ee4f2014-10-20 15:46:00 +0200[diff] [blame]28#define MINSTREL_CCK_GROUPS_NB 1
29#define MINSTREL_GROUPS_NB (MINSTREL_HT_GROUPS_NB + \
Karl Beldan92082472014-10-21 10:38:38 +0200[diff] [blame]30 MINSTREL_VHT_GROUPS_NB + \
Karl Beldan8a0ee4f2014-10-20 15:46:00 +0200[diff] [blame]31 MINSTREL_CCK_GROUPS_NB)
32
33#define MINSTREL_HT_GROUP_0 0
34#define MINSTREL_CCK_GROUP (MINSTREL_HT_GROUP_0 + MINSTREL_HT_GROUPS_NB)
Karl Beldan92082472014-10-21 10:38:38 +0200[diff] [blame]35#define MINSTREL_VHT_GROUP_0 (MINSTREL_CCK_GROUP + 1)
Felix Fietkauec8aa662010-05-13 16:48:03 +0200[diff] [blame]36
Karl Beldan92082472014-10-21 10:38:38 +0200[diff] [blame]37#ifdef CONFIG_MAC80211_RC_MINSTREL_VHT
38#define MCS_GROUP_RATES 10
39#else
40#define MCS_GROUP_RATES 8
41#endif
Felix Fietkauec8aa662010-05-13 16:48:03 +0200[diff] [blame]42
43struct mcs_group {
44 u32 flags;
45 unsigned int streams;
46 unsigned int duration[MCS_GROUP_RATES];
47};
48
John W. Linvillede66bfd2010-06-24 13:03:14 -0400[diff] [blame]49extern const struct mcs_group minstrel_mcs_groups[];
50
Felix Fietkauec8aa662010-05-13 16:48:03 +0200[diff] [blame]51struct minstrel_mcs_group_data {
52 u8 index;
53 u8 column;
54
55 /* bitfield of supported MCS rates of this group */
Karl Beldan92082472014-10-21 10:38:38 +0200[diff] [blame]56 u16 supported;
Felix Fietkauec8aa662010-05-13 16:48:03 +0200[diff] [blame]57
Thomas Huehn59358392014-09-09 23:22:14 +0200[diff] [blame]58 /* sorted rate set within a MCS group*/
Karl Beldand4d141c2014-10-20 15:45:59 +0200[diff] [blame]59 u16 max_group_tp_rate[MAX_THR_RATES];
60 u16 max_group_prob_rate;
Felix Fietkauec8aa662010-05-13 16:48:03 +0200[diff] [blame]61
62 /* MCS rate statistics */
63 struct minstrel_rate_stats rates[MCS_GROUP_RATES];
64};
65
66struct minstrel_ht_sta {
Felix Fietkaua8566662013-04-22 16:14:42 +0200[diff] [blame]67 struct ieee80211_sta *sta;
68
Felix Fietkauec8aa662010-05-13 16:48:03 +0200[diff] [blame]69 /* ampdu length (average, per sampling interval) */
70 unsigned int ampdu_len;
71 unsigned int ampdu_packets;
72
73 /* ampdu length (EWMA) */
74 unsigned int avg_ampdu_len;
75
Thomas Huehn59358392014-09-09 23:22:14 +0200[diff] [blame]76 /* overall sorted rate set */
Karl Beldand4d141c2014-10-20 15:45:59 +0200[diff] [blame]77 u16 max_tp_rate[MAX_THR_RATES];
78 u16 max_prob_rate;
Felix Fietkauec8aa662010-05-13 16:48:03 +0200[diff] [blame]79
80 /* time of last status update */
81 unsigned long stats_update;
82
83 /* overhead time in usec for each frame */
84 unsigned int overhead;
85 unsigned int overhead_rtscts;
86
87 unsigned int total_packets;
88 unsigned int sample_packets;
89
90 /* tx flags to add for frames for this sta */
91 u32 tx_flags;
92
93 u8 sample_wait;
94 u8 sample_tries;
95 u8 sample_count;
96 u8 sample_slow;
97
98 /* current MCS group to be sampled */
99 u8 sample_group;
100
Felix Fietkaua0497f92013-02-13 10:51:08 +0100[diff] [blame]101 u8 cck_supported;
102 u8 cck_supported_short;
103
Felix Fietkauec8aa662010-05-13 16:48:03 +0200[diff] [blame]104 /* MCS rate group info and statistics */
Karl Beldan8a0ee4f2014-10-20 15:46:00 +0200[diff] [blame]105 struct minstrel_mcs_group_data groups[MINSTREL_GROUPS_NB];
Felix Fietkauec8aa662010-05-13 16:48:03 +0200[diff] [blame]106};
107
108struct minstrel_ht_sta_priv {
109 union {
110 struct minstrel_ht_sta ht;
111 struct minstrel_sta_info legacy;
112 };
113#ifdef CONFIG_MAC80211_DEBUGFS
114 struct dentry *dbg_stats;
115#endif
116 void *ratelist;
117 void *sample_table;
118 bool is_ht;
119};
120
121void minstrel_ht_add_sta_debugfs(void *priv, void *priv_sta, struct dentry *dir);
122void minstrel_ht_remove_sta_debugfs(void *priv, void *priv_sta);
123
124#endif