a0497f9f57
When MCS rates start to get bad in 2.4 GHz because of long range or strong interference, CCK rates can be a lot more robust. This patch adds a pseudo MCS group containing CCK rates (long preamble in the lower 4 slots, short preamble in the upper slots). Signed-off-by: Felix Fietkau <nbd@openwrt.org> [make minstrel_ht_get_stats static] Signed-off-by: Johannes Berg <johannes.berg@intel.com>
111 lines
2.3 KiB
C
111 lines
2.3 KiB
C
/*
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* Copyright (C) 2008 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_H
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#define __RC_MINSTREL_H
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struct minstrel_rate {
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int bitrate;
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int rix;
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unsigned int perfect_tx_time;
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unsigned int ack_time;
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int sample_limit;
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unsigned int retry_count;
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unsigned int retry_count_cts;
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unsigned int retry_count_rtscts;
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unsigned int adjusted_retry_count;
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u32 success;
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u32 attempts;
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u32 last_attempts;
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u32 last_success;
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/* parts per thousand */
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u32 cur_prob;
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u32 probability;
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/* per-rate throughput */
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u32 cur_tp;
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u64 succ_hist;
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u64 att_hist;
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};
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struct minstrel_sta_info {
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unsigned long stats_update;
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unsigned int sp_ack_dur;
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unsigned int rate_avg;
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unsigned int lowest_rix;
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unsigned int max_tp_rate;
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unsigned int max_tp_rate2;
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unsigned int max_prob_rate;
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unsigned int packet_count;
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unsigned int sample_count;
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int sample_deferred;
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unsigned int sample_idx;
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unsigned int sample_column;
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int n_rates;
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struct minstrel_rate *r;
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bool prev_sample;
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/* sampling table */
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u8 *sample_table;
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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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};
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struct minstrel_priv {
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struct ieee80211_hw *hw;
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bool has_mrr;
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unsigned int cw_min;
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unsigned int cw_max;
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unsigned int max_retry;
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unsigned int ewma_level;
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unsigned int segment_size;
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unsigned int update_interval;
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unsigned int lookaround_rate;
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unsigned int lookaround_rate_mrr;
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u8 cck_rates[4];
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#ifdef CONFIG_MAC80211_DEBUGFS
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/*
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* enable fixed rate processing per RC
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* - write static index to debugfs:ieee80211/phyX/rc/fixed_rate_idx
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* - write -1 to enable RC processing again
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* - setting will be applied on next update
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*/
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u32 fixed_rate_idx;
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struct dentry *dbg_fixed_rate;
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#endif
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};
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struct minstrel_debugfs_info {
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size_t len;
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char buf[];
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};
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extern struct rate_control_ops mac80211_minstrel;
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void minstrel_add_sta_debugfs(void *priv, void *priv_sta, struct dentry *dir);
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void minstrel_remove_sta_debugfs(void *priv, void *priv_sta);
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/* debugfs */
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int minstrel_stats_open(struct inode *inode, struct file *file);
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ssize_t minstrel_stats_read(struct file *file, char __user *buf, size_t len, loff_t *ppos);
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int minstrel_stats_release(struct inode *inode, struct file *file);
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#endif
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