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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 | |
12 | struct minstrel_rate { |
13 | int bitrate; |
14 | int rix; |
15 | |
16 | unsigned int perfect_tx_time; |
17 | unsigned int ack_time; |
18 | |
19 | int sample_limit; |
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; |
36 | |
37 | u64 succ_hist; |
38 | u64 att_hist; |
39 | }; |
40 | |
41 | struct 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; |
60 | bool prev_sample; |
61 | |
62 | /* sampling table */ |
63 | u8 *sample_table; |
64 | |
65 | #ifdef CONFIG_MAC80211_DEBUGFS |
66 | struct dentry *dbg_stats; |
67 | #endif |
68 | }; |
69 | |
70 | struct 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; |
81 | |
82 | #ifdef CONFIG_MAC80211_DEBUGFS |
83 | /* |
84 | * enable fixed rate processing per RC |
85 | * - write static index to debugfs:ieee80211/phyX/rc/fixed_rate_idx |
86 | * - write -1 to enable RC processing again |
87 | * - setting will be applied on next update |
88 | */ |
89 | u32 fixed_rate_idx; |
90 | struct dentry *dbg_fixed_rate; |
91 | #endif |
92 | |
93 | }; |
94 | |
95 | struct minstrel_debugfs_info { |
96 | size_t len; |
97 | char buf[]; |
98 | }; |
99 | |
100 | extern struct rate_control_ops mac80211_minstrel; |
101 | void minstrel_add_sta_debugfs(void *priv, void *priv_sta, struct dentry *dir); |
102 | void minstrel_remove_sta_debugfs(void *priv, void *priv_sta); |
103 | |
104 | /* debugfs */ |
105 | int minstrel_stats_open(struct inode *inode, struct file *file); |
106 | ssize_t minstrel_stats_read(struct file *file, char __user *buf, size_t len, loff_t *ppos); |
107 | int minstrel_stats_release(struct inode *inode, struct file *file); |
108 | |
109 | #endif |
110 |
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Tags:
od-2011-09-04
od-2011-09-18
v2.6.34-rc5
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v3.9