net/mac80211/rc80211_minstrel.h

   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         u32 throughput;
  37
  38         u64 succ_hist;
  39         u64 att_hist;
  40 };
  41
  42 struct minstrel_sta_info {
  43         unsigned long stats_update;
  44         unsigned int sp_ack_dur;
  45         unsigned int rate_avg;
  46
  47         unsigned int lowest_rix;
  48
  49         unsigned int max_tp_rate;
  50         unsigned int max_tp_rate2;
  51         unsigned int max_prob_rate;
  52         unsigned int packet_count;
  53         unsigned int sample_count;
  54         int sample_deferred;
  55
  56         unsigned int sample_idx;
  57         unsigned int sample_column;
  58
  59         int n_rates;
  60         struct minstrel_rate *r;
  61         bool prev_sample;
  62
  63         /* sampling table */
  64         u8 *sample_table;
  65
  66 #ifdef CONFIG_MAC80211_DEBUGFS
  67         struct dentry *dbg_stats;
  68 #endif
  69 };
  70
  71 struct minstrel_priv {
  72         struct ieee80211_hw *hw;
  73         bool has_mrr;
  74         unsigned int cw_min;
  75         unsigned int cw_max;
  76         unsigned int max_retry;
  77         unsigned int ewma_level;
  78         unsigned int segment_size;
  79         unsigned int update_interval;
  80         unsigned int lookaround_rate;
  81         unsigned int lookaround_rate_mrr;
  82 };
  83
  84 void minstrel_add_sta_debugfs(void *priv, void *priv_sta, struct dentry *dir);
  85 void minstrel_remove_sta_debugfs(void *priv, void *priv_sta);
  86
  87 #endif