~ [ source navigation ] ~ [ diff markup ] ~ [ identifier search ] ~

TOMOYO Linux Cross Reference
Linux/net/mac80211/rate.h

Version: ~ [ linux-5.3-rc5 ] ~ [ linux-5.2.9 ] ~ [ linux-5.1.21 ] ~ [ linux-5.0.21 ] ~ [ linux-4.20.17 ] ~ [ linux-4.19.67 ] ~ [ linux-4.18.20 ] ~ [ linux-4.17.19 ] ~ [ linux-4.16.18 ] ~ [ linux-4.15.18 ] ~ [ linux-4.14.139 ] ~ [ linux-4.13.16 ] ~ [ linux-4.12.14 ] ~ [ linux-4.11.12 ] ~ [ linux-4.10.17 ] ~ [ linux-4.9.189 ] ~ [ linux-4.8.17 ] ~ [ linux-4.7.10 ] ~ [ linux-4.6.7 ] ~ [ linux-4.5.7 ] ~ [ linux-4.4.189 ] ~ [ linux-4.3.6 ] ~ [ linux-4.2.8 ] ~ [ linux-4.1.52 ] ~ [ linux-4.0.9 ] ~ [ linux-3.19.8 ] ~ [ linux-3.18.140 ] ~ [ linux-3.17.8 ] ~ [ linux-3.16.72 ] ~ [ linux-3.15.10 ] ~ [ linux-3.14.79 ] ~ [ linux-3.13.11 ] ~ [ linux-3.12.74 ] ~ [ linux-3.11.10 ] ~ [ linux-3.10.108 ] ~ [ linux-3.9.11 ] ~ [ linux-3.8.13 ] ~ [ linux-3.7.10 ] ~ [ linux-3.6.11 ] ~ [ linux-3.5.7 ] ~ [ linux-3.4.113 ] ~ [ linux-3.3.8 ] ~ [ linux-3.2.102 ] ~ [ linux-3.1.10 ] ~ [ linux-3.0.101 ] ~ [ linux-2.6.32.71 ] ~ [ linux-2.6.0 ] ~ [ linux-2.4.37.11 ] ~ [ unix-v6-master ] ~ [ ccs-tools-1.8.5 ] ~ [ policy-sample ] ~
Architecture: ~ [ i386 ] ~ [ alpha ] ~ [ m68k ] ~ [ mips ] ~ [ ppc ] ~ [ sparc ] ~ [ sparc64 ] ~

  1 /*
  2  * Copyright 2002-2005, Instant802 Networks, Inc.
  3  * Copyright 2005, Devicescape Software, Inc.
  4  * Copyright (c) 2006 Jiri Benc <jbenc@suse.cz>
  5  *
  6  * This program is free software; you can redistribute it and/or modify
  7  * it under the terms of the GNU General Public License version 2 as
  8  * published by the Free Software Foundation.
  9  */
 10 
 11 #ifndef IEEE80211_RATE_H
 12 #define IEEE80211_RATE_H
 13 
 14 #include <linux/netdevice.h>
 15 #include <linux/skbuff.h>
 16 #include <linux/types.h>
 17 #include <net/mac80211.h>
 18 #include "ieee80211_i.h"
 19 #include "sta_info.h"
 20 #include "driver-ops.h"
 21 
 22 struct rate_control_ref {
 23         struct ieee80211_local *local;
 24         const struct rate_control_ops *ops;
 25         void *priv;
 26 };
 27 
 28 void rate_control_get_rate(struct ieee80211_sub_if_data *sdata,
 29                            struct sta_info *sta,
 30                            struct ieee80211_tx_rate_control *txrc);
 31 
 32 static inline void rate_control_tx_status(struct ieee80211_local *local,
 33                                           struct ieee80211_supported_band *sband,
 34                                           struct sta_info *sta,
 35                                           struct sk_buff *skb)
 36 {
 37         struct rate_control_ref *ref = local->rate_ctrl;
 38         struct ieee80211_sta *ista = &sta->sta;
 39         void *priv_sta = sta->rate_ctrl_priv;
 40         struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
 41 
 42         if (!ref || !test_sta_flag(sta, WLAN_STA_RATE_CONTROL))
 43                 return;
 44 
 45         if (ref->ops->tx_status)
 46                 ref->ops->tx_status(ref->priv, sband, ista, priv_sta, skb);
 47         else
 48                 ref->ops->tx_status_noskb(ref->priv, sband, ista, priv_sta, info);
 49 }
 50 
 51 static inline void
 52 rate_control_tx_status_noskb(struct ieee80211_local *local,
 53                              struct ieee80211_supported_band *sband,
 54                              struct sta_info *sta,
 55                              struct ieee80211_tx_info *info)
 56 {
 57         struct rate_control_ref *ref = local->rate_ctrl;
 58         struct ieee80211_sta *ista = &sta->sta;
 59         void *priv_sta = sta->rate_ctrl_priv;
 60 
 61         if (!ref || !test_sta_flag(sta, WLAN_STA_RATE_CONTROL))
 62                 return;
 63 
 64         if (WARN_ON_ONCE(!ref->ops->tx_status_noskb))
 65                 return;
 66 
 67         ref->ops->tx_status_noskb(ref->priv, sband, ista, priv_sta, info);
 68 }
 69 
 70 static inline void rate_control_rate_init(struct sta_info *sta)
 71 {
 72         struct ieee80211_local *local = sta->sdata->local;
 73         struct rate_control_ref *ref = sta->rate_ctrl;
 74         struct ieee80211_sta *ista = &sta->sta;
 75         void *priv_sta = sta->rate_ctrl_priv;
 76         struct ieee80211_supported_band *sband;
 77         struct ieee80211_chanctx_conf *chanctx_conf;
 78 
 79         ieee80211_sta_set_rx_nss(sta);
 80 
 81         if (!ref)
 82                 return;
 83 
 84         rcu_read_lock();
 85 
 86         chanctx_conf = rcu_dereference(sta->sdata->vif.chanctx_conf);
 87         if (WARN_ON(!chanctx_conf)) {
 88                 rcu_read_unlock();
 89                 return;
 90         }
 91 
 92         sband = local->hw.wiphy->bands[chanctx_conf->def.chan->band];
 93 
 94         ref->ops->rate_init(ref->priv, sband, &chanctx_conf->def, ista,
 95                             priv_sta);
 96         rcu_read_unlock();
 97         set_sta_flag(sta, WLAN_STA_RATE_CONTROL);
 98 }
 99 
100 static inline void rate_control_rate_update(struct ieee80211_local *local,
101                                     struct ieee80211_supported_band *sband,
102                                     struct sta_info *sta, u32 changed)
103 {
104         struct rate_control_ref *ref = local->rate_ctrl;
105         struct ieee80211_sta *ista = &sta->sta;
106         void *priv_sta = sta->rate_ctrl_priv;
107         struct ieee80211_chanctx_conf *chanctx_conf;
108 
109         if (ref && ref->ops->rate_update) {
110                 rcu_read_lock();
111 
112                 chanctx_conf = rcu_dereference(sta->sdata->vif.chanctx_conf);
113                 if (WARN_ON(!chanctx_conf)) {
114                         rcu_read_unlock();
115                         return;
116                 }
117 
118                 ref->ops->rate_update(ref->priv, sband, &chanctx_conf->def,
119                                       ista, priv_sta, changed);
120                 rcu_read_unlock();
121         }
122         drv_sta_rc_update(local, sta->sdata, &sta->sta, changed);
123 }
124 
125 static inline void *rate_control_alloc_sta(struct rate_control_ref *ref,
126                                            struct ieee80211_sta *sta,
127                                            gfp_t gfp)
128 {
129         return ref->ops->alloc_sta(ref->priv, sta, gfp);
130 }
131 
132 static inline void rate_control_free_sta(struct sta_info *sta)
133 {
134         struct rate_control_ref *ref = sta->rate_ctrl;
135         struct ieee80211_sta *ista = &sta->sta;
136         void *priv_sta = sta->rate_ctrl_priv;
137 
138         ref->ops->free_sta(ref->priv, ista, priv_sta);
139 }
140 
141 static inline void rate_control_add_sta_debugfs(struct sta_info *sta)
142 {
143 #ifdef CONFIG_MAC80211_DEBUGFS
144         struct rate_control_ref *ref = sta->rate_ctrl;
145         if (ref && sta->debugfs.dir && ref->ops->add_sta_debugfs)
146                 ref->ops->add_sta_debugfs(ref->priv, sta->rate_ctrl_priv,
147                                           sta->debugfs.dir);
148 #endif
149 }
150 
151 static inline void rate_control_remove_sta_debugfs(struct sta_info *sta)
152 {
153 #ifdef CONFIG_MAC80211_DEBUGFS
154         struct rate_control_ref *ref = sta->rate_ctrl;
155         if (ref && ref->ops->remove_sta_debugfs)
156                 ref->ops->remove_sta_debugfs(ref->priv, sta->rate_ctrl_priv);
157 #endif
158 }
159 
160 /* Get a reference to the rate control algorithm. If `name' is NULL, get the
161  * first available algorithm. */
162 int ieee80211_init_rate_ctrl_alg(struct ieee80211_local *local,
163                                  const char *name);
164 void rate_control_deinitialize(struct ieee80211_local *local);
165 
166 
167 /* Rate control algorithms */
168 #ifdef CONFIG_MAC80211_RC_MINSTREL
169 int rc80211_minstrel_init(void);
170 void rc80211_minstrel_exit(void);
171 #else
172 static inline int rc80211_minstrel_init(void)
173 {
174         return 0;
175 }
176 static inline void rc80211_minstrel_exit(void)
177 {
178 }
179 #endif
180 
181 #ifdef CONFIG_MAC80211_RC_MINSTREL_HT
182 int rc80211_minstrel_ht_init(void);
183 void rc80211_minstrel_ht_exit(void);
184 #else
185 static inline int rc80211_minstrel_ht_init(void)
186 {
187         return 0;
188 }
189 static inline void rc80211_minstrel_ht_exit(void)
190 {
191 }
192 #endif
193 
194 
195 #endif /* IEEE80211_RATE_H */
196 

~ [ source navigation ] ~ [ diff markup ] ~ [ identifier search ] ~

kernel.org | git.kernel.org | LWN.net | Project Home | Wiki (Japanese) | Wiki (English) | SVN repository | Mail admin

Linux® is a registered trademark of Linus Torvalds in the United States and other countries.
TOMOYO® is a registered trademark of NTT DATA CORPORATION.

osdn.jp