#include <linux/netdevice.h>
#include <linux/types.h>
#include <linux/skbuff.h>
#include <linux/debugfs.h>
#include <linux/random.h>
#include <linux/ieee80211.h>
#include <net/mac80211.h>
#include "rate.h"
#include "rc80211_minstrel.h"
#include "rc80211_minstrel_ht.h"

Include dependency graph for kernel-3.5/rc80211_minstrel_ht.c:

Defines
#define	AVG_PKT_SIZE 1200
#define	EWMA_LEVEL 75
#define	GROUP_IDX(_streams, _sgi, _ht40)
#define	MCS_DURATION(streams, sgi, bps) MCS_SYMBOL_TIME(sgi, MCS_NSYMS((streams) * (bps)))
#define	MCS_GROUP(_streams, _sgi, _ht40)
#define	MCS_NBITS (AVG_PKT_SIZE << 3)
#define	MCS_NSYMS(bps) ((MCS_NBITS + (bps) - 1) / (bps))
#define	MCS_SYMBOL_TIME(sgi, syms)
#define	SAMPLE_COLUMNS 10
Functions
static void	init_sample_table (void)
static void	minstrel_aggr_check (struct ieee80211_sta pubsta, struct sk_buff skb)
static void	minstrel_calc_rate_ewma (struct minstrel_rate_stats *mr)
static void	minstrel_calc_retransmit (struct minstrel_priv mp, struct minstrel_ht_sta mi, int index)
static void	minstrel_downgrade_rate (struct minstrel_ht_sta mi, unsigned int idx, bool primary)
static int	minstrel_ewma (int old, int new, int weight)
static int	minstrel_get_duration (int index)
static struct minstrel_rate_stats *	minstrel_get_ratestats (struct minstrel_ht_sta *mi, int index)
static int	minstrel_get_sample_rate (struct minstrel_priv mp, struct minstrel_ht_sta mi)
static void *	minstrel_ht_alloc (struct ieee80211_hw hw, struct dentry debugfsdir)
static void *	minstrel_ht_alloc_sta (void priv, struct ieee80211_sta sta, gfp_t gfp)
static void	minstrel_ht_calc_tp (struct minstrel_ht_sta *mi, int group, int rate)
static void	minstrel_ht_free (void *priv)
static void	minstrel_ht_free_sta (void priv, struct ieee80211_sta sta, void *priv_sta)
static int	minstrel_ht_get_group_idx (struct ieee80211_tx_rate *rate)
static void	minstrel_ht_get_rate (void priv, struct ieee80211_sta sta, void priv_sta, struct ieee80211_tx_rate_control txrc)
static void	minstrel_ht_rate_init (void priv, struct ieee80211_supported_band sband, struct ieee80211_sta sta, void priv_sta)
static void	minstrel_ht_rate_update (void priv, struct ieee80211_supported_band sband, struct ieee80211_sta sta, void priv_sta, u32 changed)
static void	minstrel_ht_set_rate (struct minstrel_priv mp, struct minstrel_ht_sta mi, struct ieee80211_tx_rate *rate, int index, bool sample, bool rtscts)
static void	minstrel_ht_tx_status (void priv, struct ieee80211_supported_band sband, struct ieee80211_sta sta, void priv_sta, struct sk_buff *skb)
static bool	minstrel_ht_txstat_valid (struct ieee80211_tx_rate *rate)
static void	minstrel_ht_update_caps (void priv, struct ieee80211_supported_band sband, struct ieee80211_sta sta, void priv_sta)
static void	minstrel_ht_update_stats (struct minstrel_priv mp, struct minstrel_ht_sta mi)
static void	minstrel_next_sample_idx (struct minstrel_ht_sta *mi)
void	rc80211_minstrel_ht_exit (void)
int __init	rc80211_minstrel_ht_init (void)
Variables
static struct rate_control_ops	mac80211_minstrel_ht
struct mcs_group	minstrel_mcs_groups []
static u8	sample_table [SAMPLE_COLUMNS][MCS_GROUP_RATES]

Define Documentation

#define AVG_PKT_SIZE 1200

Definition at line 19 of file kernel-3.5/rc80211_minstrel_ht.c.

#define EWMA_LEVEL 75

Definition at line 21 of file kernel-3.5/rc80211_minstrel_ht.c.

#define GROUP_IDX	(	_streams,
		_sgi,
		_ht40
	)

Value:

MINSTREL_MAX_STREAMS * 2 * _ht40 +      \
        MINSTREL_MAX_STREAMS * _sgi +           \
        _streams - 1

Definition at line 42 of file kernel-3.5/rc80211_minstrel_ht.c.

#define MCS_DURATION	(	streams,
		sgi,
		bps
	)	MCS_SYMBOL_TIME(sgi, MCS_NSYMS((streams) * (bps)))

Definition at line 37 of file kernel-3.5/rc80211_minstrel_ht.c.

#define MCS_GROUP	(	_streams,
		_sgi,
		_ht40
	)

Value:

[GROUP_IDX(_streams, _sgi, _ht40)] = {                          \
        .streams = _streams,                                            \
        .flags =                                                        \
                (_sgi ? IEEE80211_TX_RC_SHORT_GI : 0) |                 \
                (_ht40 ? IEEE80211_TX_RC_40_MHZ_WIDTH : 0),             \
        .duration = {                                                   \
                MCS_DURATION(_streams, _sgi, _ht40 ? 54 : 26),          \
                MCS_DURATION(_streams, _sgi, _ht40 ? 108 : 52),         \
                MCS_DURATION(_streams, _sgi, _ht40 ? 162 : 78),         \
                MCS_DURATION(_streams, _sgi, _ht40 ? 216 : 104),        \
                MCS_DURATION(_streams, _sgi, _ht40 ? 324 : 156),        \
                MCS_DURATION(_streams, _sgi, _ht40 ? 432 : 208),        \
                MCS_DURATION(_streams, _sgi, _ht40 ? 486 : 234),        \
                MCS_DURATION(_streams, _sgi, _ht40 ? 540 : 260)         \
        }                                                               \
}

Definition at line 48 of file kernel-3.5/rc80211_minstrel_ht.c.

#define MCS_NBITS (AVG_PKT_SIZE << 3)

Definition at line 24 of file kernel-3.5/rc80211_minstrel_ht.c.

#define MCS_NSYMS ( bps ) ((MCS_NBITS + (bps) - 1) / (bps))

Definition at line 27 of file kernel-3.5/rc80211_minstrel_ht.c.

#define MCS_SYMBOL_TIME	(	sgi,
		syms
	)

Value:

(sgi ?                                                          \
          ((syms) * 18 + 4) / 5 :       /* syms * 3.6 us */             \
          (syms) << 2                   /* syms * 4 us */               \
        )

Definition at line 30 of file kernel-3.5/rc80211_minstrel_ht.c.

#define SAMPLE_COLUMNS 10

Definition at line 20 of file kernel-3.5/rc80211_minstrel_ht.c.

Function Documentation

static void init_sample_table ( void ) [static]

Definition at line 873 of file kernel-3.5/rc80211_minstrel_ht.c.

static void minstrel_aggr_check	(	struct ieee80211_sta *	pubsta,
		struct sk_buff *	skb
	)		`[static]`

Definition at line 359 of file kernel-3.5/rc80211_minstrel_ht.c.

static void minstrel_calc_rate_ewma ( struct minstrel_rate_stats * mr ) [static]

Definition at line 133 of file kernel-3.5/rc80211_minstrel_ht.c.

static void minstrel_calc_retransmit	(	struct minstrel_priv *	mp,
		struct minstrel_ht_sta *	mi,
		int	index
	)		`[static]`

Definition at line 462 of file kernel-3.5/rc80211_minstrel_ht.c.

static void minstrel_downgrade_rate	(	struct minstrel_ht_sta *	mi,
		unsigned int *	idx,
		bool	primary
	)		`[static]`

Definition at line 334 of file kernel-3.5/rc80211_minstrel_ht.c.

static int minstrel_ewma	(	int	old,
		int	new,
		int	weight
	)		`[static]`

Definition at line 106 of file kernel-3.5/rc80211_minstrel_ht.c.

static int minstrel_get_duration ( int index ) [inline, static]

Definition at line 542 of file kernel-3.5/rc80211_minstrel_ht.c.

static struct minstrel_rate_stats* minstrel_get_ratestats	(	struct minstrel_ht_sta *	mi,
		int	index
	)		`[static, read]`

Definition at line 123 of file kernel-3.5/rc80211_minstrel_ht.c.

static int minstrel_get_sample_rate	(	struct minstrel_priv *	mp,
		struct minstrel_ht_sta *	mi
	)		`[static]`

Definition at line 549 of file kernel-3.5/rc80211_minstrel_ht.c.

static void* minstrel_ht_alloc	(	struct ieee80211_hw *	hw,
		struct dentry *	debugfsdir
	)		`[static]`

Definition at line 844 of file kernel-3.5/rc80211_minstrel_ht.c.

static void* minstrel_ht_alloc_sta	(	void *	priv,
		struct ieee80211_sta *	sta,
		gfp_t	gfp
	)		`[static]`

Definition at line 797 of file kernel-3.5/rc80211_minstrel_ht.c.

static void minstrel_ht_calc_tp	(	struct minstrel_ht_sta *	mi,
		int	group,
		int	rate
	)		`[static]`

Definition at line 159 of file kernel-3.5/rc80211_minstrel_ht.c.

static void minstrel_ht_free ( void * priv ) [static]

Definition at line 850 of file kernel-3.5/rc80211_minstrel_ht.c.

static void minstrel_ht_free_sta	(	void *	priv,
		struct ieee80211_sta *	sta,
		void *	priv_sta
	)		`[static]`

Definition at line 834 of file kernel-3.5/rc80211_minstrel_ht.c.

static int minstrel_ht_get_group_idx ( struct ieee80211_tx_rate * rate ) [static]

Definition at line 115 of file kernel-3.5/rc80211_minstrel_ht.c.

static void minstrel_ht_get_rate	(	void *	priv,
		struct ieee80211_sta *	sta,
		void *	priv_sta,
		struct ieee80211_tx_rate_control *	txrc
	)		`[static]`

Definition at line 601 of file kernel-3.5/rc80211_minstrel_ht.c.

static void minstrel_ht_rate_init	(	void *	priv,
		struct ieee80211_supported_band *	sband,
		struct ieee80211_sta *	sta,
		void *	priv_sta
	)		`[static]`

Definition at line 782 of file kernel-3.5/rc80211_minstrel_ht.c.

static void minstrel_ht_rate_update	(	void *	priv,
		struct ieee80211_supported_band *	sband,
		struct ieee80211_sta *	sta,
		void *	priv_sta,
		u32	changed
	)		`[static]`

Definition at line 789 of file kernel-3.5/rc80211_minstrel_ht.c.

static void minstrel_ht_set_rate	(	struct minstrel_priv *	mp,
		struct minstrel_ht_sta *	mi,
		struct ieee80211_tx_rate *	rate,
		int	index,
		bool	sample,
		bool	rtscts
	)		`[static]`

Definition at line 515 of file kernel-3.5/rc80211_minstrel_ht.c.

static void minstrel_ht_tx_status	(	void *	priv,
		struct ieee80211_supported_band *	sband,
		struct ieee80211_sta *	sta,
		void *	priv_sta,
		struct sk_buff *	skb
	)		`[static]`

Definition at line 382 of file kernel-3.5/rc80211_minstrel_ht.c.

static bool minstrel_ht_txstat_valid ( struct ieee80211_tx_rate * rate ) [static]

Definition at line 300 of file kernel-3.5/rc80211_minstrel_ht.c.

static void minstrel_ht_update_caps	(	void *	priv,
		struct ieee80211_supported_band *	sband,
		struct ieee80211_sta *	sta,
		void *	priv_sta
	)		`[static]`

Definition at line 688 of file kernel-3.5/rc80211_minstrel_ht.c.

static void minstrel_ht_update_stats	(	struct minstrel_priv *	mp,
		struct minstrel_ht_sta *	mi
	)		`[static]`

Definition at line 186 of file kernel-3.5/rc80211_minstrel_ht.c.

static void minstrel_next_sample_idx ( struct minstrel_ht_sta * mi ) [static]

Definition at line 312 of file kernel-3.5/rc80211_minstrel_ht.c.

void rc80211_minstrel_ht_exit ( void )

Definition at line 900 of file kernel-3.5/rc80211_minstrel_ht.c.

int __init rc80211_minstrel_ht_init ( void )

Definition at line 893 of file kernel-3.5/rc80211_minstrel_ht.c.

Variable Documentation

struct rate_control_ops mac80211_minstrel_ht [static]

Initial value:

 {
        .name = "minstrel_ht",
        .tx_status = minstrel_ht_tx_status,
        .get_rate = minstrel_ht_get_rate,
        .rate_init = minstrel_ht_rate_init,
        .rate_update = minstrel_ht_rate_update,
        .alloc_sta = minstrel_ht_alloc_sta,
        .free_sta = minstrel_ht_free_sta,
        .alloc = minstrel_ht_alloc,
        .free = minstrel_ht_free,




}

Definition at line 855 of file kernel-3.5/rc80211_minstrel_ht.c.

struct mcs_group minstrel_mcs_groups[]

Initial value:

 {
        MCS_GROUP(1, 0, 0),
        MCS_GROUP(2, 0, 0),

        MCS_GROUP(3, 0, 0),


        MCS_GROUP(1, 1, 0),
        MCS_GROUP(2, 1, 0),

        MCS_GROUP(3, 1, 0),


        MCS_GROUP(1, 0, 1),
        MCS_GROUP(2, 0, 1),

        MCS_GROUP(3, 0, 1),


        MCS_GROUP(1, 1, 1),
        MCS_GROUP(2, 1, 1),

        MCS_GROUP(3, 1, 1),

}

Definition at line 74 of file kernel-3.5/rc80211_minstrel_ht.c.

u8 sample_table[SAMPLE_COLUMNS][MCS_GROUP_RATES] [static]

Definition at line 100 of file kernel-3.5/rc80211_minstrel_ht.c.

Defines

Functions

Variables

Define Documentation

Function Documentation

Variable Documentation