Release 4.11 net/mac80211/rate.h

/*
 * Copyright 2002-2005, Instant802 Networks, Inc.
 * Copyright 2005, Devicescape Software, Inc.
 * Copyright (c) 2006 Jiri Benc <jbenc@suse.cz>
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License version 2 as
 * published by the Free Software Foundation.
 */

#ifndef IEEE80211_RATE_H

#define IEEE80211_RATE_H

#include <linux/netdevice.h>
#include <linux/skbuff.h>
#include <linux/types.h>
#include <net/mac80211.h>
#include "ieee80211_i.h"
#include "sta_info.h"
#include "driver-ops.h"


struct rate_control_ref {
	
struct ieee80211_local *local;
	
const struct rate_control_ops *ops;
	
void *priv;
};

void rate_control_get_rate(struct ieee80211_sub_if_data *sdata,
			   struct sta_info *sta,
			   struct ieee80211_tx_rate_control *txrc);



static inline void rate_control_tx_status(struct ieee80211_local *local,
					  struct ieee80211_supported_band *sband,
					  struct sta_info *sta,
					  struct sk_buff *skb)
{
	struct rate_control_ref *ref = local->rate_ctrl;
	struct ieee80211_sta *ista = &sta->sta;
	void *priv_sta = sta->rate_ctrl_priv;
	struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);

	if (!ref || !test_sta_flag(sta, WLAN_STA_RATE_CONTROL))
		return;

	spin_lock_bh(&sta->rate_ctrl_lock);
	if (ref->ops->tx_status)
		ref->ops->tx_status(ref->priv, sband, ista, priv_sta, skb);
	else
		ref->ops->tx_status_noskb(ref->priv, sband, ista, priv_sta, info);
	spin_unlock_bh(&sta->rate_ctrl_lock);
}

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static inline void

rate_control_tx_status_noskb(struct ieee80211_local *local,
			     struct ieee80211_supported_band *sband,
			     struct sta_info *sta,
			     struct ieee80211_tx_info *info)
{
	struct rate_control_ref *ref = local->rate_ctrl;
	struct ieee80211_sta *ista = &sta->sta;
	void *priv_sta = sta->rate_ctrl_priv;

	if (!ref || !test_sta_flag(sta, WLAN_STA_RATE_CONTROL))
		return;

	if (WARN_ON_ONCE(!ref->ops->tx_status_noskb))
		return;

	spin_lock_bh(&sta->rate_ctrl_lock);
	ref->ops->tx_status_noskb(ref->priv, sband, ista, priv_sta, info);
	spin_unlock_bh(&sta->rate_ctrl_lock);
}

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void rate_control_rate_init(struct sta_info *sta);
void rate_control_rate_update(struct ieee80211_local *local,
				    struct ieee80211_supported_band *sband,
				    struct sta_info *sta, u32 changed);



static inline void *rate_control_alloc_sta(struct rate_control_ref *ref,
					   struct sta_info *sta, gfp_t gfp)
{
	spin_lock_init(&sta->rate_ctrl_lock);
	return ref->ops->alloc_sta(ref->priv, &sta->sta, gfp);
}

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static inline void rate_control_free_sta(struct sta_info *sta)
{
	struct rate_control_ref *ref = sta->rate_ctrl;
	struct ieee80211_sta *ista = &sta->sta;
	void *priv_sta = sta->rate_ctrl_priv;

	ref->ops->free_sta(ref->priv, ista, priv_sta);
}

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static inline void rate_control_add_sta_debugfs(struct sta_info *sta)
{
#ifdef CONFIG_MAC80211_DEBUGFS
	struct rate_control_ref *ref = sta->rate_ctrl;
	if (ref && sta->debugfs_dir && ref->ops->add_sta_debugfs)
		ref->ops->add_sta_debugfs(ref->priv, sta->rate_ctrl_priv,
					  sta->debugfs_dir);
#endif
}

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static inline void rate_control_remove_sta_debugfs(struct sta_info *sta)
{
#ifdef CONFIG_MAC80211_DEBUGFS
	struct rate_control_ref *ref = sta->rate_ctrl;
	if (ref && ref->ops->remove_sta_debugfs)
		ref->ops->remove_sta_debugfs(ref->priv, sta->rate_ctrl_priv);
#endif
}

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/* Get a reference to the rate control algorithm. If `name' is NULL, get the
 * first available algorithm. */
int ieee80211_init_rate_ctrl_alg(struct ieee80211_local *local,
				 const char *name);
void rate_control_deinitialize(struct ieee80211_local *local);


/* Rate control algorithms */
#ifdef CONFIG_MAC80211_RC_MINSTREL
int rc80211_minstrel_init(void);
void rc80211_minstrel_exit(void);
#else


static inline int rc80211_minstrel_init(void)
{
	return 0;
}
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static inline void rc80211_minstrel_exit(void)
{
}
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#endif

#ifdef CONFIG_MAC80211_RC_MINSTREL_HT
int rc80211_minstrel_ht_init(void);
void rc80211_minstrel_ht_exit(void);
#else


static inline int rc80211_minstrel_ht_init(void)
{
	return 0;
}
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static inline void rc80211_minstrel_ht_exit(void)
{
}
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#endif


#endif /* IEEE80211_RATE_H */
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Directory: net/mac80211

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