![Felix Fietkau](/assets/img/avatar_default.png)
When MCS rates start to get bad in 2.4 GHz because of long range or strong interference, CCK rates can be a lot more robust. This patch adds a pseudo MCS group containing CCK rates (long preamble in the lower 4 slots, short preamble in the upper slots). Signed-off-by: Felix Fietkau <nbd@openwrt.org> [make minstrel_ht_get_stats static] Signed-off-by: Johannes Berg <johannes.berg@intel.com>
112 lines
2.3 KiB
C
112 lines
2.3 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;
|
|
|
|
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;
|
|
|
|
u8 cck_rates[4];
|
|
|
|
#ifdef CONFIG_MAC80211_DEBUGFS
|
|
/*
|
|
* enable fixed rate processing per RC
|
|
* - write static index to debugfs:ieee80211/phyX/rc/fixed_rate_idx
|
|
* - write -1 to enable RC processing again
|
|
* - setting will be applied on next update
|
|
*/
|
|
u32 fixed_rate_idx;
|
|
struct dentry *dbg_fixed_rate;
|
|
#endif
|
|
|
|
};
|
|
|
|
struct minstrel_debugfs_info {
|
|
size_t len;
|
|
char buf[];
|
|
};
|
|
|
|
extern struct rate_control_ops mac80211_minstrel;
|
|
void minstrel_add_sta_debugfs(void *priv, void *priv_sta, struct dentry *dir);
|
|
void minstrel_remove_sta_debugfs(void *priv, void *priv_sta);
|
|
|
|
/* debugfs */
|
|
int minstrel_stats_open(struct inode *inode, struct file *file);
|
|
ssize_t minstrel_stats_read(struct file *file, char __user *buf, size_t len, loff_t *ppos);
|
|
int minstrel_stats_release(struct inode *inode, struct file *file);
|
|
|
|
#endif
|