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https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
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55de908ab2
Instead of operating on a single channel only, use the new channel context infrastructure in all mac80211 code. This enables drivers that want to use the new channel context infrastructure to use multiple channels, while nothing should change for all the other drivers that don't support it. Right now this disables both TX power settings and spatial multiplexing powersave. Both need to be re-enabled on a channel context basis. Additionally, when channel contexts are used drop the connection when channel switch is received rather than trying to handle it. This will have to be improved later. [With fixes from Eliad and Emmanuel incorporated] Signed-off-by: Eliad Peller <eliad@wizery.com> Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
172 lines
4.4 KiB
C
172 lines
4.4 KiB
C
/*
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* Copyright 2002-2005, Instant802 Networks, Inc.
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* Copyright 2005, Devicescape Software, Inc.
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* Copyright (c) 2006 Jiri Benc <jbenc@suse.cz>
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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 IEEE80211_RATE_H
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#define IEEE80211_RATE_H
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#include <linux/netdevice.h>
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#include <linux/skbuff.h>
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#include <linux/types.h>
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#include <net/mac80211.h>
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#include "ieee80211_i.h"
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#include "sta_info.h"
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#include "driver-ops.h"
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struct rate_control_ref {
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struct ieee80211_local *local;
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struct rate_control_ops *ops;
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void *priv;
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};
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void rate_control_get_rate(struct ieee80211_sub_if_data *sdata,
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struct sta_info *sta,
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struct ieee80211_tx_rate_control *txrc);
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static inline void rate_control_tx_status(struct ieee80211_local *local,
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struct ieee80211_supported_band *sband,
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struct sta_info *sta,
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struct sk_buff *skb)
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{
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struct rate_control_ref *ref = local->rate_ctrl;
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struct ieee80211_sta *ista = &sta->sta;
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void *priv_sta = sta->rate_ctrl_priv;
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if (!ref || !test_sta_flag(sta, WLAN_STA_RATE_CONTROL))
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return;
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ref->ops->tx_status(ref->priv, sband, ista, priv_sta, skb);
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}
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static inline void rate_control_rate_init(struct sta_info *sta)
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{
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struct ieee80211_local *local = sta->sdata->local;
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struct rate_control_ref *ref = sta->rate_ctrl;
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struct ieee80211_sta *ista = &sta->sta;
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void *priv_sta = sta->rate_ctrl_priv;
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struct ieee80211_supported_band *sband;
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struct ieee80211_chanctx_conf *chanctx_conf;
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if (!ref)
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return;
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rcu_read_lock();
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chanctx_conf = rcu_dereference(sta->sdata->vif.chanctx_conf);
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if (WARN_ON(!chanctx_conf)) {
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rcu_read_unlock();
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return;
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}
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sband = local->hw.wiphy->bands[chanctx_conf->channel->band];
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rcu_read_unlock();
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ref->ops->rate_init(ref->priv, sband, ista, priv_sta);
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set_sta_flag(sta, WLAN_STA_RATE_CONTROL);
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}
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static inline void rate_control_rate_update(struct ieee80211_local *local,
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struct ieee80211_supported_band *sband,
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struct sta_info *sta, u32 changed)
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{
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struct rate_control_ref *ref = local->rate_ctrl;
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struct ieee80211_sta *ista = &sta->sta;
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void *priv_sta = sta->rate_ctrl_priv;
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if (ref && ref->ops->rate_update)
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ref->ops->rate_update(ref->priv, sband, ista,
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priv_sta, changed);
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drv_sta_rc_update(local, sta->sdata, &sta->sta, changed);
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}
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static inline void *rate_control_alloc_sta(struct rate_control_ref *ref,
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struct ieee80211_sta *sta,
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gfp_t gfp)
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{
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return ref->ops->alloc_sta(ref->priv, sta, gfp);
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}
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static inline void rate_control_free_sta(struct sta_info *sta)
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{
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struct rate_control_ref *ref = sta->rate_ctrl;
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struct ieee80211_sta *ista = &sta->sta;
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void *priv_sta = sta->rate_ctrl_priv;
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ref->ops->free_sta(ref->priv, ista, priv_sta);
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}
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static inline void rate_control_add_sta_debugfs(struct sta_info *sta)
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{
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#ifdef CONFIG_MAC80211_DEBUGFS
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struct rate_control_ref *ref = sta->rate_ctrl;
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if (ref && sta->debugfs.dir && ref->ops->add_sta_debugfs)
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ref->ops->add_sta_debugfs(ref->priv, sta->rate_ctrl_priv,
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sta->debugfs.dir);
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#endif
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}
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static inline void rate_control_remove_sta_debugfs(struct sta_info *sta)
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{
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#ifdef CONFIG_MAC80211_DEBUGFS
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struct rate_control_ref *ref = sta->rate_ctrl;
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if (ref && ref->ops->remove_sta_debugfs)
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ref->ops->remove_sta_debugfs(ref->priv, sta->rate_ctrl_priv);
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#endif
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}
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/* Get a reference to the rate control algorithm. If `name' is NULL, get the
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* first available algorithm. */
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int ieee80211_init_rate_ctrl_alg(struct ieee80211_local *local,
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const char *name);
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void rate_control_deinitialize(struct ieee80211_local *local);
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/* Rate control algorithms */
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#ifdef CONFIG_MAC80211_RC_PID
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extern int rc80211_pid_init(void);
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extern void rc80211_pid_exit(void);
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#else
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static inline int rc80211_pid_init(void)
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{
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return 0;
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}
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static inline void rc80211_pid_exit(void)
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{
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}
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#endif
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#ifdef CONFIG_MAC80211_RC_MINSTREL
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extern int rc80211_minstrel_init(void);
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extern void rc80211_minstrel_exit(void);
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#else
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static inline int rc80211_minstrel_init(void)
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{
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return 0;
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}
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static inline void rc80211_minstrel_exit(void)
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{
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}
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#endif
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#ifdef CONFIG_MAC80211_RC_MINSTREL_HT
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extern int rc80211_minstrel_ht_init(void);
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extern void rc80211_minstrel_ht_exit(void);
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#else
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static inline int rc80211_minstrel_ht_init(void)
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{
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return 0;
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}
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static inline void rc80211_minstrel_ht_exit(void)
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{
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}
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#endif
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#endif /* IEEE80211_RATE_H */
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