mirror of
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
synced 2024-10-31 16:38:12 +00:00
de66bfd85c
Signed-off-by: John W. Linville <linville@tuxdriver.com> Acked-by: Felix Fietkau <nbd@openwrt.org>
130 lines
2.9 KiB
C
130 lines
2.9 KiB
C
/*
|
|
* Copyright (C) 2010 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_HT_H
|
|
#define __RC_MINSTREL_HT_H
|
|
|
|
/*
|
|
* The number of streams can be changed to 2 to reduce code
|
|
* size and memory footprint.
|
|
*/
|
|
#define MINSTREL_MAX_STREAMS 3
|
|
#define MINSTREL_STREAM_GROUPS 4
|
|
|
|
/* scaled fraction values */
|
|
#define MINSTREL_SCALE 16
|
|
#define MINSTREL_FRAC(val, div) (((val) << MINSTREL_SCALE) / div)
|
|
#define MINSTREL_TRUNC(val) ((val) >> MINSTREL_SCALE)
|
|
|
|
#define MCS_GROUP_RATES 8
|
|
|
|
struct mcs_group {
|
|
u32 flags;
|
|
unsigned int streams;
|
|
unsigned int duration[MCS_GROUP_RATES];
|
|
};
|
|
|
|
extern const struct mcs_group minstrel_mcs_groups[];
|
|
|
|
struct minstrel_rate_stats {
|
|
/* current / last sampling period attempts/success counters */
|
|
unsigned int attempts, last_attempts;
|
|
unsigned int success, last_success;
|
|
|
|
/* total attempts/success counters */
|
|
u64 att_hist, succ_hist;
|
|
|
|
/* current throughput */
|
|
unsigned int cur_tp;
|
|
|
|
/* packet delivery probabilities */
|
|
unsigned int cur_prob, probability;
|
|
|
|
/* maximum retry counts */
|
|
unsigned int retry_count;
|
|
unsigned int retry_count_rtscts;
|
|
|
|
bool retry_updated;
|
|
u8 sample_skipped;
|
|
};
|
|
|
|
struct minstrel_mcs_group_data {
|
|
u8 index;
|
|
u8 column;
|
|
|
|
/* bitfield of supported MCS rates of this group */
|
|
u8 supported;
|
|
|
|
/* selected primary rates */
|
|
unsigned int max_tp_rate;
|
|
unsigned int max_tp_rate2;
|
|
unsigned int max_prob_rate;
|
|
|
|
/* MCS rate statistics */
|
|
struct minstrel_rate_stats rates[MCS_GROUP_RATES];
|
|
};
|
|
|
|
struct minstrel_ht_sta {
|
|
/* ampdu length (average, per sampling interval) */
|
|
unsigned int ampdu_len;
|
|
unsigned int ampdu_packets;
|
|
|
|
/* ampdu length (EWMA) */
|
|
unsigned int avg_ampdu_len;
|
|
|
|
/* best throughput rate */
|
|
unsigned int max_tp_rate;
|
|
|
|
/* second best throughput rate */
|
|
unsigned int max_tp_rate2;
|
|
|
|
/* best probability rate */
|
|
unsigned int max_prob_rate;
|
|
|
|
/* time of last status update */
|
|
unsigned long stats_update;
|
|
|
|
/* overhead time in usec for each frame */
|
|
unsigned int overhead;
|
|
unsigned int overhead_rtscts;
|
|
|
|
unsigned int total_packets;
|
|
unsigned int sample_packets;
|
|
|
|
/* tx flags to add for frames for this sta */
|
|
u32 tx_flags;
|
|
|
|
u8 sample_wait;
|
|
u8 sample_tries;
|
|
u8 sample_count;
|
|
u8 sample_slow;
|
|
|
|
/* current MCS group to be sampled */
|
|
u8 sample_group;
|
|
|
|
/* MCS rate group info and statistics */
|
|
struct minstrel_mcs_group_data groups[MINSTREL_MAX_STREAMS * MINSTREL_STREAM_GROUPS];
|
|
};
|
|
|
|
struct minstrel_ht_sta_priv {
|
|
union {
|
|
struct minstrel_ht_sta ht;
|
|
struct minstrel_sta_info legacy;
|
|
};
|
|
#ifdef CONFIG_MAC80211_DEBUGFS
|
|
struct dentry *dbg_stats;
|
|
#endif
|
|
void *ratelist;
|
|
void *sample_table;
|
|
bool is_ht;
|
|
};
|
|
|
|
void minstrel_ht_add_sta_debugfs(void *priv, void *priv_sta, struct dentry *dir);
|
|
void minstrel_ht_remove_sta_debugfs(void *priv, void *priv_sta);
|
|
|
|
#endif
|