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b1c4f68337
Legacy-only devices are not very common and the overhead of the extra code for HT and VHT rates is not big enough to justify all those extra lines of code to make it optional. Signed-off-by: Felix Fietkau <nbd@nbd.name> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
115 lines
2.7 KiB
C
115 lines
2.7 KiB
C
/*
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* Copyright (C) 2010 Felix Fietkau <nbd@openwrt.org>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 as
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* published by the Free Software Foundation.
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*/
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#ifndef __RC_MINSTREL_HT_H
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#define __RC_MINSTREL_HT_H
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/*
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* The number of streams can be changed to 2 to reduce code
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* size and memory footprint.
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*/
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#define MINSTREL_MAX_STREAMS 3
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#define MINSTREL_HT_STREAM_GROUPS 4 /* BW(=2) * SGI(=2) */
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#define MINSTREL_VHT_STREAM_GROUPS 6 /* BW(=3) * SGI(=2) */
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#define MINSTREL_HT_GROUPS_NB (MINSTREL_MAX_STREAMS * \
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MINSTREL_HT_STREAM_GROUPS)
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#define MINSTREL_VHT_GROUPS_NB (MINSTREL_MAX_STREAMS * \
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MINSTREL_VHT_STREAM_GROUPS)
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#define MINSTREL_CCK_GROUPS_NB 1
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#define MINSTREL_GROUPS_NB (MINSTREL_HT_GROUPS_NB + \
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MINSTREL_VHT_GROUPS_NB + \
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MINSTREL_CCK_GROUPS_NB)
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#define MINSTREL_HT_GROUP_0 0
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#define MINSTREL_CCK_GROUP (MINSTREL_HT_GROUP_0 + MINSTREL_HT_GROUPS_NB)
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#define MINSTREL_VHT_GROUP_0 (MINSTREL_CCK_GROUP + 1)
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#define MCS_GROUP_RATES 10
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struct mcs_group {
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u32 flags;
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unsigned int streams;
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unsigned int duration[MCS_GROUP_RATES];
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};
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extern const struct mcs_group minstrel_mcs_groups[];
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struct minstrel_mcs_group_data {
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u8 index;
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u8 column;
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/* sorted rate set within a MCS group*/
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u16 max_group_tp_rate[MAX_THR_RATES];
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u16 max_group_prob_rate;
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/* MCS rate statistics */
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struct minstrel_rate_stats rates[MCS_GROUP_RATES];
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};
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struct minstrel_ht_sta {
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struct ieee80211_sta *sta;
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/* ampdu length (average, per sampling interval) */
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unsigned int ampdu_len;
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unsigned int ampdu_packets;
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/* ampdu length (EWMA) */
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unsigned int avg_ampdu_len;
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/* overall sorted rate set */
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u16 max_tp_rate[MAX_THR_RATES];
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u16 max_prob_rate;
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/* time of last status update */
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unsigned long last_stats_update;
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/* overhead time in usec for each frame */
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unsigned int overhead;
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unsigned int overhead_rtscts;
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unsigned int total_packets;
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unsigned int sample_packets;
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/* tx flags to add for frames for this sta */
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u32 tx_flags;
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u8 sample_wait;
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u8 sample_tries;
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u8 sample_count;
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u8 sample_slow;
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/* current MCS group to be sampled */
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u8 sample_group;
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u8 cck_supported;
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u8 cck_supported_short;
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/* Bitfield of supported MCS rates of all groups */
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u16 supported[MINSTREL_GROUPS_NB];
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/* MCS rate group info and statistics */
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struct minstrel_mcs_group_data groups[MINSTREL_GROUPS_NB];
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};
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struct minstrel_ht_sta_priv {
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union {
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struct minstrel_ht_sta ht;
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struct minstrel_sta_info legacy;
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};
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void *ratelist;
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void *sample_table;
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bool is_ht;
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};
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void minstrel_ht_add_sta_debugfs(void *priv, void *priv_sta, struct dentry *dir);
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int minstrel_ht_get_tp_avg(struct minstrel_ht_sta *mi, int group, int rate,
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int prob_ewma);
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#endif
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