linux/net/mac80211/rc80211_minstrel_ht.h
Thomas Gleixner d2912cb15b treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500
Based on 2 normalized pattern(s):

  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

  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 #

extracted by the scancode license scanner the SPDX license identifier

  GPL-2.0-only

has been chosen to replace the boilerplate/reference in 4122 file(s).

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Enrico Weigelt <info@metux.net>
Reviewed-by: Kate Stewart <kstewart@linuxfoundation.org>
Reviewed-by: Allison Randal <allison@lohutok.net>
Cc: linux-spdx@vger.kernel.org
Link: https://lkml.kernel.org/r/20190604081206.933168790@linutronix.de
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-06-19 17:09:55 +02:00

113 lines
2.6 KiB
C

/* SPDX-License-Identifier: GPL-2.0-only */
/*
* Copyright (C) 2010 Felix Fietkau <nbd@openwrt.org>
*/
#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 4
#define MINSTREL_HT_STREAM_GROUPS 4 /* BW(=2) * SGI(=2) */
#define MINSTREL_VHT_STREAM_GROUPS 6 /* BW(=3) * SGI(=2) */
#define MINSTREL_HT_GROUPS_NB (MINSTREL_MAX_STREAMS * \
MINSTREL_HT_STREAM_GROUPS)
#define MINSTREL_VHT_GROUPS_NB (MINSTREL_MAX_STREAMS * \
MINSTREL_VHT_STREAM_GROUPS)
#define MINSTREL_CCK_GROUPS_NB 1
#define MINSTREL_GROUPS_NB (MINSTREL_HT_GROUPS_NB + \
MINSTREL_VHT_GROUPS_NB + \
MINSTREL_CCK_GROUPS_NB)
#define MINSTREL_HT_GROUP_0 0
#define MINSTREL_CCK_GROUP (MINSTREL_HT_GROUP_0 + MINSTREL_HT_GROUPS_NB)
#define MINSTREL_VHT_GROUP_0 (MINSTREL_CCK_GROUP + 1)
#define MCS_GROUP_RATES 10
struct mcs_group {
u16 flags;
u8 streams;
u8 shift;
u16 duration[MCS_GROUP_RATES];
};
extern const struct mcs_group minstrel_mcs_groups[];
struct minstrel_mcs_group_data {
u8 index;
u8 column;
/* sorted rate set within a MCS group*/
u16 max_group_tp_rate[MAX_THR_RATES];
u16 max_group_prob_rate;
/* MCS rate statistics */
struct minstrel_rate_stats rates[MCS_GROUP_RATES];
};
struct minstrel_ht_sta {
struct ieee80211_sta *sta;
/* ampdu length (average, per sampling interval) */
unsigned int ampdu_len;
unsigned int ampdu_packets;
/* ampdu length (EWMA) */
unsigned int avg_ampdu_len;
/* overall sorted rate set */
u16 max_tp_rate[MAX_THR_RATES];
u16 max_prob_rate;
/* time of last status update */
unsigned long last_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;
u8 cck_supported;
u8 cck_supported_short;
/* Bitfield of supported MCS rates of all groups */
u16 supported[MINSTREL_GROUPS_NB];
/* MCS rate group info and statistics */
struct minstrel_mcs_group_data groups[MINSTREL_GROUPS_NB];
};
struct minstrel_ht_sta_priv {
union {
struct minstrel_ht_sta ht;
struct minstrel_sta_info legacy;
};
void *ratelist;
void *sample_table;
bool is_ht;
};
void minstrel_ht_add_sta_debugfs(void *priv, void *priv_sta, struct dentry *dir);
int minstrel_ht_get_tp_avg(struct minstrel_ht_sta *mi, int group, int rate,
int prob_ewma);
#endif