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awilliam
GitHub Repository: awilliam/linux-vfio
 Path: blob/master/net/mac80211/rc80211_minstrel.h
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/*

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 * Copyright (C) 2008 Felix Fietkau <[email protected]>

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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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