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gerrit-public.fairphone.software / kernel / msm-4.9 / 8cde7ad17e4f4ff8d12ff60dd09c0a291cb0b61c / . / net / mac80211 / rc80211_minstrel.h
blob: 5ecf757817f289f76eee112093fae345c7f4cc0f [file] [log] [blame]
Felix Fietkaucccf1292008-10-05 18:07:45 +0200[diff] [blame]1/*
2 * Copyright (C) 2008 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_H
10#define __RC_MINSTREL_H
11
12struct minstrel_rate {
13 int bitrate;
14 int rix;
15
16 unsigned int perfect_tx_time;
17 unsigned int ack_time;
18
Felix Fietkauf4a8cd92008-10-15 19:13:59 +0200[diff] [blame]19 int sample_limit;
Felix Fietkaucccf1292008-10-05 18:07:45 +0200[diff] [blame]20 unsigned int retry_count;
21 unsigned int retry_count_cts;
22 unsigned int retry_count_rtscts;
23 unsigned int adjusted_retry_count;
24
25 u32 success;
26 u32 attempts;
27 u32 last_attempts;
28 u32 last_success;
29
30 /* parts per thousand */
31 u32 cur_prob;
32 u32 probability;
33
34 /* per-rate throughput */
35 u32 cur_tp;
Felix Fietkaucccf1292008-10-05 18:07:45 +0200[diff] [blame]36
37 u64 succ_hist;
38 u64 att_hist;
39};
40
41struct minstrel_sta_info {
42 unsigned long stats_update;
43 unsigned int sp_ack_dur;
44 unsigned int rate_avg;
45
46 unsigned int lowest_rix;
47
48 unsigned int max_tp_rate;
49 unsigned int max_tp_rate2;
50 unsigned int max_prob_rate;
51 unsigned int packet_count;
52 unsigned int sample_count;
53 int sample_deferred;
54
55 unsigned int sample_idx;
56 unsigned int sample_column;
57
58 int n_rates;
59 struct minstrel_rate *r;
Felix Fietkauf4a8cd92008-10-15 19:13:59 +0200[diff] [blame]60 bool prev_sample;
Felix Fietkaucccf1292008-10-05 18:07:45 +0200[diff] [blame]61
62 /* sampling table */
63 u8 *sample_table;
64
65#ifdef CONFIG_MAC80211_DEBUGFS
66 struct dentry *dbg_stats;
67#endif
68};
69
70struct minstrel_priv {
71 struct ieee80211_hw *hw;
72 bool has_mrr;
73 unsigned int cw_min;
74 unsigned int cw_max;
75 unsigned int max_retry;
76 unsigned int ewma_level;
77 unsigned int segment_size;
78 unsigned int update_interval;
79 unsigned int lookaround_rate;
80 unsigned int lookaround_rate_mrr;
Zefir Kurtisi24f75802011-05-20 20:29:17 +0200[diff] [blame]81
Felix Fietkaua0497f92013-02-13 10:51:08 +0100[diff] [blame]82 u8 cck_rates[4];
83
Zefir Kurtisi24f75802011-05-20 20:29:17 +0200[diff] [blame]84#ifdef CONFIG_MAC80211_DEBUGFS
85 /*
86 * enable fixed rate processing per RC
87 * - write static index to debugfs:ieee80211/phyX/rc/fixed_rate_idx
88 * - write -1 to enable RC processing again
89 * - setting will be applied on next update
90 */
91 u32 fixed_rate_idx;
92 struct dentry *dbg_fixed_rate;
93#endif
94
Felix Fietkaucccf1292008-10-05 18:07:45 +0200[diff] [blame]95};
96
Felix Fietkau44ac91e2010-03-01 22:17:38 +0100[diff] [blame]97struct minstrel_debugfs_info {
98 size_t len;
99 char buf[];
100};
101
Felix Fietkaueae44752010-03-01 22:21:40 +0100[diff] [blame]102extern struct rate_control_ops mac80211_minstrel;
Felix Fietkaucccf1292008-10-05 18:07:45 +0200[diff] [blame]103void minstrel_add_sta_debugfs(void *priv, void *priv_sta, struct dentry *dir);
104void minstrel_remove_sta_debugfs(void *priv, void *priv_sta);
105
Felix Fietkaueae44752010-03-01 22:21:40 +0100[diff] [blame]106/* debugfs */
107int minstrel_stats_open(struct inode *inode, struct file *file);
108ssize_t minstrel_stats_read(struct file *file, char __user *buf, size_t len, loff_t *ppos);
109int minstrel_stats_release(struct inode *inode, struct file *file);
110
Felix Fietkaucccf1292008-10-05 18:07:45 +0200[diff] [blame]111#endif