rc80211_minstrel.h
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00001 /*
00002  * Copyright (C) 2008 Felix Fietkau <nbd@openwrt.org>
00003  *
00004  * This program is free software; you can redistribute it and/or modify
00005  * it under the terms of the GNU General Public License version 2 as
00006  * published by the Free Software Foundation.
00007  */
00008 
00009 #ifndef __RC_MINSTREL_H
00010 #define __RC_MINSTREL_H
00011 
00012 struct minstrel_rate {
00013         int bitrate;
00014         int rix;
00015 
00016         unsigned int perfect_tx_time;
00017         unsigned int ack_time;
00018 
00019         int sample_limit;
00020         unsigned int retry_count;
00021         unsigned int retry_count_cts;
00022         unsigned int retry_count_rtscts;
00023         unsigned int adjusted_retry_count;
00024 
00025         u32 success;
00026         u32 attempts;
00027         u32 last_attempts;
00028         u32 last_success;
00029 
00030         /* parts per thousand */
00031         u32 cur_prob;
00032         u32 probability;
00033 
00034         /* per-rate throughput */
00035         u32 cur_tp;
00036 
00037         u64 succ_hist;
00038         u64 att_hist;
00039 };
00040 
00041 struct minstrel_sta_info {
00042         unsigned long stats_update;
00043         unsigned int sp_ack_dur;
00044         unsigned int rate_avg;
00045 
00046         unsigned int lowest_rix;
00047 
00048         unsigned int max_tp_rate;
00049         unsigned int max_tp_rate2;
00050         unsigned int max_prob_rate;
00051         unsigned int packet_count;
00052         unsigned int sample_count;
00053         int sample_deferred;
00054 
00055         unsigned int sample_idx;
00056         unsigned int sample_column;
00057 
00058         int n_rates;
00059         struct minstrel_rate *r;
00060         bool prev_sample;
00061 
00062         /* sampling table */
00063         u8 *sample_table;
00064 
00065 #ifdef CONFIG_MAC80211_DEBUGFS
00066         struct dentry *dbg_stats;
00067 #endif
00068 };
00069 
00070 struct minstrel_priv {
00071         struct ieee80211_hw *hw;
00072         bool has_mrr;
00073         unsigned int cw_min;
00074         unsigned int cw_max;
00075         unsigned int max_retry;
00076         unsigned int ewma_level;
00077         unsigned int segment_size;
00078         unsigned int update_interval;
00079         unsigned int lookaround_rate;
00080         unsigned int lookaround_rate_mrr;
00081 
00082 #ifdef CONFIG_MAC80211_DEBUGFS
00083         /*
00084          * enable fixed rate processing per RC
00085          *   - write static index to debugfs:ieee80211/phyX/rc/fixed_rate_idx
00086          *   - write -1 to enable RC processing again
00087          *   - setting will be applied on next update
00088          */
00089         u32 fixed_rate_idx;
00090         struct dentry *dbg_fixed_rate;
00091 #endif
00092 
00093 };
00094 
00095 struct minstrel_debugfs_info {
00096         size_t len;
00097         char buf[];
00098 };
00099 
00100 extern struct rate_control_ops mac80211_minstrel;
00101 void minstrel_add_sta_debugfs(void *priv, void *priv_sta, struct dentry *dir);
00102 void minstrel_remove_sta_debugfs(void *priv, void *priv_sta);
00103 
00104 /* debugfs */
00105 int minstrel_stats_open(struct inode *inode, struct file *file);
00106 ssize_t minstrel_stats_read(struct file *file, char __user *buf, size_t len, loff_t *ppos);
00107 int minstrel_stats_release(struct inode *inode, struct file *file);
00108 
00109 #endif


ros_rt_wmp
Author(s): Danilo Tardioli, dantard@unizar.es
autogenerated on Fri Jan 3 2014 12:07:55