eae44756d6
This patch makes it possible to reuse the minstrel rate control ops from another rate control module. This is useful in preparing for the new 802.11n implementation of minstrel, which will reuse the old code for legacy stations. Signed-off-by: Felix Fietkau <nbd@openwrt.org> Signed-off-by: John W. Linville <linville@tuxdriver.com>
98 lines
2 KiB
C
98 lines
2 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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};
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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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