diff options
Diffstat (limited to 'net/mac80211/rc80211_minstrel.h')
| -rw-r--r-- | net/mac80211/rc80211_minstrel.h | 31 |
1 files changed, 26 insertions, 5 deletions
diff --git a/net/mac80211/rc80211_minstrel.h b/net/mac80211/rc80211_minstrel.h index 5ecf757817f2..85ebf42cb46d 100644 --- a/net/mac80211/rc80211_minstrel.h +++ b/net/mac80211/rc80211_minstrel.h @@ -9,6 +9,28 @@ #ifndef __RC_MINSTREL_H #define __RC_MINSTREL_H +#define EWMA_LEVEL 75 /* ewma weighting factor [%] */ +#define SAMPLE_COLUMNS 10 /* number of columns in sample table */ + + +/* scaled fraction values */ +#define MINSTREL_SCALE 16 +#define MINSTREL_FRAC(val, div) (((val) << MINSTREL_SCALE) / div) +#define MINSTREL_TRUNC(val) ((val) >> MINSTREL_SCALE) + +/* number of highest throughput rates to consider*/ +#define MAX_THR_RATES 4 + +/* + * Perform EWMA (Exponentially Weighted Moving Average) calculation + */ +static inline int +minstrel_ewma(int old, int new, int weight) +{ + return (new * (100 - weight) + old * weight) / 100; +} + + struct minstrel_rate { int bitrate; int rix; @@ -26,6 +48,7 @@ struct minstrel_rate { u32 attempts; u32 last_attempts; u32 last_success; + u8 sample_skipped; /* parts per thousand */ u32 cur_prob; @@ -45,14 +68,13 @@ struct minstrel_sta_info { unsigned int lowest_rix; - unsigned int max_tp_rate; - unsigned int max_tp_rate2; - unsigned int max_prob_rate; + u8 max_tp_rate[MAX_THR_RATES]; + u8 max_prob_rate; unsigned int packet_count; unsigned int sample_count; int sample_deferred; - unsigned int sample_idx; + unsigned int sample_row; unsigned int sample_column; int n_rates; @@ -73,7 +95,6 @@ struct minstrel_priv { 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; |