diff options
Diffstat (limited to 'net/mac80211/rate.h')
| -rw-r--r-- | net/mac80211/rate.h | 87 |
1 files changed, 62 insertions, 25 deletions
diff --git a/net/mac80211/rate.h b/net/mac80211/rate.h index 2ab5ad9e71c..9aa2a1190a8 100644 --- a/net/mac80211/rate.h +++ b/net/mac80211/rate.h @@ -14,27 +14,20 @@ #include <linux/netdevice.h> #include <linux/skbuff.h> #include <linux/types.h> -#include <linux/kref.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; - struct rate_control_ops *ops; + const struct rate_control_ops *ops; void *priv; - struct kref kref; }; -/* Get a reference to the rate control algorithm. If `name' is NULL, get the - * first available algorithm. */ -struct rate_control_ref *rate_control_alloc(const char *name, - struct ieee80211_local *local); void rate_control_get_rate(struct ieee80211_sub_if_data *sdata, struct sta_info *sta, struct ieee80211_tx_rate_control *txrc); -struct rate_control_ref *rate_control_get(struct rate_control_ref *ref); -void rate_control_put(struct rate_control_ref *ref); static inline void rate_control_tx_status(struct ieee80211_local *local, struct ieee80211_supported_band *sband, @@ -44,10 +37,11 @@ static inline void rate_control_tx_status(struct ieee80211_local *local, 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 (likely(info->flags & IEEE80211_TX_INTFL_RCALGO)) - ref->ops->tx_status(ref->priv, sband, ista, priv_sta, skb); + if (!ref || !test_sta_flag(sta, WLAN_STA_RATE_CONTROL)) + return; + + ref->ops->tx_status(ref->priv, sband, ista, priv_sta, skb); } @@ -58,10 +52,27 @@ static inline void rate_control_rate_init(struct sta_info *sta) struct ieee80211_sta *ista = &sta->sta; void *priv_sta = sta->rate_ctrl_priv; struct ieee80211_supported_band *sband; + struct ieee80211_chanctx_conf *chanctx_conf; + + ieee80211_sta_set_rx_nss(sta); + + if (!ref) + return; - sband = local->hw.wiphy->bands[local->hw.conf.channel->band]; + rcu_read_lock(); - ref->ops->rate_init(ref->priv, sband, ista, priv_sta); + chanctx_conf = rcu_dereference(sta->sdata->vif.chanctx_conf); + if (WARN_ON(!chanctx_conf)) { + rcu_read_unlock(); + return; + } + + sband = local->hw.wiphy->bands[chanctx_conf->def.chan->band]; + + ref->ops->rate_init(ref->priv, sband, &chanctx_conf->def, ista, + priv_sta); + rcu_read_unlock(); + set_sta_flag(sta, WLAN_STA_RATE_CONTROL); } static inline void rate_control_rate_update(struct ieee80211_local *local, @@ -71,10 +82,22 @@ static inline void rate_control_rate_update(struct ieee80211_local *local, struct rate_control_ref *ref = local->rate_ctrl; struct ieee80211_sta *ista = &sta->sta; void *priv_sta = sta->rate_ctrl_priv; - - if (ref->ops->rate_update) - ref->ops->rate_update(ref->priv, sband, ista, - priv_sta, changed); + struct ieee80211_chanctx_conf *chanctx_conf; + + if (ref && ref->ops->rate_update) { + rcu_read_lock(); + + chanctx_conf = rcu_dereference(sta->sdata->vif.chanctx_conf); + if (WARN_ON(!chanctx_conf)) { + rcu_read_unlock(); + return; + } + + ref->ops->rate_update(ref->priv, sband, &chanctx_conf->def, + ista, priv_sta, changed); + rcu_read_unlock(); + } + drv_sta_rc_update(local, sta->sdata, &sta->sta, changed); } static inline void *rate_control_alloc_sta(struct rate_control_ref *ref, @@ -97,7 +120,7 @@ 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 (sta->debugfs.dir && ref->ops->add_sta_debugfs) + 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 @@ -107,12 +130,13 @@ 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->ops->remove_sta_debugfs) + if (ref && ref->ops->remove_sta_debugfs) ref->ops->remove_sta_debugfs(ref->priv, sta->rate_ctrl_priv); #endif } -/* functions for rate control related to a device */ +/* 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); @@ -120,8 +144,8 @@ void rate_control_deinitialize(struct ieee80211_local *local); /* Rate control algorithms */ #ifdef CONFIG_MAC80211_RC_PID -extern int rc80211_pid_init(void); -extern void rc80211_pid_exit(void); +int rc80211_pid_init(void); +void rc80211_pid_exit(void); #else static inline int rc80211_pid_init(void) { @@ -133,8 +157,8 @@ static inline void rc80211_pid_exit(void) #endif #ifdef CONFIG_MAC80211_RC_MINSTREL -extern int rc80211_minstrel_init(void); -extern void rc80211_minstrel_exit(void); +int rc80211_minstrel_init(void); +void rc80211_minstrel_exit(void); #else static inline int rc80211_minstrel_init(void) { @@ -145,5 +169,18 @@ static inline void rc80211_minstrel_exit(void) } #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; +} +static inline void rc80211_minstrel_ht_exit(void) +{ +} +#endif + #endif /* IEEE80211_RATE_H */ |