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9208247d74
When the new CONFIG_MAC80211_RC_MINSTREL_VHT is not set (default 'N'), there is no behavioral change including in sampling and MCS_GROUP_RATES remains 8. Otherwise MCS_GROUP_RATES is 10, and a module parameter *vht_only* (default 'true'), restricts the rates selection to VHT when VHT is supported. Regarding the debugfs stats buffer: It is explicitly increased from 8k to 32k to fit every rates incl. when both HT and VHT rates are enabled, as for the format, before: type rate tpt eprob *prob ret *ok(*cum) ok( cum) HT20/LGI ABCDP MCS0 0.0 0.0 0.0 1 0( 0) 0( 0) after: type rate tpt eprob *prob ret *ok(*cum) ok( cum) HT20/LGI ABCDP MCS0 0.0 0.0 0.0 1 0( 0) 0( 0) VHT40/LGI MCS5/2 0.0 0.0 0.0 0 0( 0) 0( 0) Signed-off-by: Karl Beldan <karl.beldan@rivierawaves.com> Cc: Felix Fietkau <nbd@openwrt.org> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
125 lines
2.9 KiB
C
125 lines
2.9 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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#ifdef CONFIG_MAC80211_RC_MINSTREL_VHT
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#define MINSTREL_VHT_STREAM_GROUPS 6 /* BW(=3) * SGI(=2) */
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#else
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#define MINSTREL_VHT_STREAM_GROUPS 0
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#endif
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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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#ifdef CONFIG_MAC80211_RC_MINSTREL_VHT
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#define MCS_GROUP_RATES 10
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#else
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#define MCS_GROUP_RATES 8
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#endif
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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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/* bitfield of supported MCS rates of this group */
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u16 supported;
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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 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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/* 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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#ifdef CONFIG_MAC80211_DEBUGFS
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struct dentry *dbg_stats;
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#endif
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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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void minstrel_ht_remove_sta_debugfs(void *priv, void *priv_sta);
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#endif
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