f4a8cd94fc
This patch enhances minstrel's performance for non-MRR setups, by preventing it from sampling slower rates with >95% success probability and by putting at least 1 non-sample frame between several sample frames. Signed-off-by: Felix Fietkau <nbd@openwrt.org> Signed-off-by: John W. Linville <linville@tuxdriver.com>
87 lines
1.7 KiB
C
87 lines
1.7 KiB
C
/*
|
|
* Copyright (C) 2008 Felix Fietkau <nbd@openwrt.org>
|
|
*
|
|
* This program is free software; you can redistribute it and/or modify
|
|
* it under the terms of the GNU General Public License version 2 as
|
|
* published by the Free Software Foundation.
|
|
*/
|
|
|
|
#ifndef __RC_MINSTREL_H
|
|
#define __RC_MINSTREL_H
|
|
|
|
struct minstrel_rate {
|
|
int bitrate;
|
|
int rix;
|
|
|
|
unsigned int perfect_tx_time;
|
|
unsigned int ack_time;
|
|
|
|
int sample_limit;
|
|
unsigned int retry_count;
|
|
unsigned int retry_count_cts;
|
|
unsigned int retry_count_rtscts;
|
|
unsigned int adjusted_retry_count;
|
|
|
|
u32 success;
|
|
u32 attempts;
|
|
u32 last_attempts;
|
|
u32 last_success;
|
|
|
|
/* parts per thousand */
|
|
u32 cur_prob;
|
|
u32 probability;
|
|
|
|
/* per-rate throughput */
|
|
u32 cur_tp;
|
|
u32 throughput;
|
|
|
|
u64 succ_hist;
|
|
u64 att_hist;
|
|
};
|
|
|
|
struct minstrel_sta_info {
|
|
unsigned long stats_update;
|
|
unsigned int sp_ack_dur;
|
|
unsigned int rate_avg;
|
|
|
|
unsigned int lowest_rix;
|
|
|
|
unsigned int max_tp_rate;
|
|
unsigned int max_tp_rate2;
|
|
unsigned int max_prob_rate;
|
|
unsigned int packet_count;
|
|
unsigned int sample_count;
|
|
int sample_deferred;
|
|
|
|
unsigned int sample_idx;
|
|
unsigned int sample_column;
|
|
|
|
int n_rates;
|
|
struct minstrel_rate *r;
|
|
bool prev_sample;
|
|
|
|
/* sampling table */
|
|
u8 *sample_table;
|
|
|
|
#ifdef CONFIG_MAC80211_DEBUGFS
|
|
struct dentry *dbg_stats;
|
|
#endif
|
|
};
|
|
|
|
struct minstrel_priv {
|
|
struct ieee80211_hw *hw;
|
|
bool has_mrr;
|
|
unsigned int cw_min;
|
|
unsigned int cw_max;
|
|
unsigned int max_retry;
|
|
unsigned int ewma_level;
|
|
unsigned int segment_size;
|
|
unsigned int update_interval;
|
|
unsigned int lookaround_rate;
|
|
unsigned int lookaround_rate_mrr;
|
|
};
|
|
|
|
void minstrel_add_sta_debugfs(void *priv, void *priv_sta, struct dentry *dir);
|
|
void minstrel_remove_sta_debugfs(void *priv, void *priv_sta);
|
|
|
|
#endif
|