From 849b7967818995a32c3017542e33eb3155944368 Mon Sep 17 00:00:00 2001 From: Johannes Berg Date: Tue, 10 Feb 2009 21:25:54 +0100 Subject: mac80211: further cleanups to stopping BA sessions Essentially consisting of passing the sta_info pointer around, instead of repeatedly doing hash lookups. Signed-off-by: Johannes Berg Signed-off-by: John W. Linville --- net/mac80211/agg-rx.c | 6 ++--- net/mac80211/agg-tx.c | 63 ++++++++++++++++++++++++---------------------- net/mac80211/ht.c | 9 +++---- net/mac80211/ieee80211_i.h | 5 ++++ 4 files changed, 44 insertions(+), 39 deletions(-) diff --git a/net/mac80211/agg-rx.c b/net/mac80211/agg-rx.c index bb1f8740cbd5..3112bfd441b6 100644 --- a/net/mac80211/agg-rx.c +++ b/net/mac80211/agg-rx.c @@ -17,8 +17,8 @@ #include #include "ieee80211_i.h" -static void __ieee80211_sta_stop_rx_ba_session(struct sta_info *sta, u16 tid, - u16 initiator, u16 reason) +void __ieee80211_stop_rx_ba_session(struct sta_info *sta, u16 tid, + u16 initiator, u16 reason) { struct ieee80211_local *local = sta->local; struct ieee80211_hw *hw = &local->hw; @@ -96,7 +96,7 @@ void ieee80211_sta_stop_rx_ba_session(struct ieee80211_sub_if_data *sdata, u8 *r return; } - __ieee80211_sta_stop_rx_ba_session(sta, tid, initiator, reason); + __ieee80211_stop_rx_ba_session(sta, tid, initiator, reason); rcu_read_unlock(); } diff --git a/net/mac80211/agg-tx.c b/net/mac80211/agg-tx.c index a49b76f61da3..1232d9f01ca9 100644 --- a/net/mac80211/agg-tx.c +++ b/net/mac80211/agg-tx.c @@ -123,10 +123,10 @@ void ieee80211_send_bar(struct ieee80211_sub_if_data *sdata, u8 *ra, u16 tid, u1 ieee80211_tx_skb(sdata, skb, 0); } -static int __ieee80211_stop_tx_ba_session(struct ieee80211_local *local, - struct sta_info *sta, u16 tid, - enum ieee80211_back_parties initiator) +static int ___ieee80211_stop_tx_ba_session(struct sta_info *sta, u16 tid, + enum ieee80211_back_parties initiator) { + struct ieee80211_local *local = sta->local; int ret; u8 *state; @@ -165,7 +165,6 @@ static void sta_addba_resp_timer_expired(unsigned long data) u16 tid = *(u8 *)data; struct sta_info *sta = container_of((void *)data, struct sta_info, timer_to_tid[tid]); - struct ieee80211_local *local = sta->local; u8 *state; state = &sta->ampdu_mlme.tid_state_tx[tid]; @@ -186,7 +185,7 @@ static void sta_addba_resp_timer_expired(unsigned long data) printk(KERN_DEBUG "addBA response timer expired on tid %d\n", tid); #endif - __ieee80211_stop_tx_ba_session(local, sta, tid, WLAN_BACK_INITIATOR); + ___ieee80211_stop_tx_ba_session(sta, tid, WLAN_BACK_INITIATOR); spin_unlock_bh(&sta->lock); } @@ -427,6 +426,32 @@ void ieee80211_start_tx_ba_cb_irqsafe(struct ieee80211_hw *hw, } EXPORT_SYMBOL(ieee80211_start_tx_ba_cb_irqsafe); +int __ieee80211_stop_tx_ba_session(struct sta_info *sta, u16 tid, + enum ieee80211_back_parties initiator) +{ + u8 *state; + int ret; + + /* check if the TID is in aggregation */ + state = &sta->ampdu_mlme.tid_state_tx[tid]; + spin_lock_bh(&sta->lock); + + if (*state != HT_AGG_STATE_OPERATIONAL) { + ret = -ENOENT; + goto unlock; + } + +#ifdef CONFIG_MAC80211_HT_DEBUG + printk(KERN_DEBUG "Tx BA session stop requested for %pM tid %u\n", + sta->sta.addr, tid); +#endif /* CONFIG_MAC80211_HT_DEBUG */ + + ret = ___ieee80211_stop_tx_ba_session(sta, tid, initiator); + + unlock: + spin_unlock_bh(&sta->lock); + return ret; +} int ieee80211_stop_tx_ba_session(struct ieee80211_hw *hw, u8 *ra, u16 tid, @@ -434,7 +459,6 @@ int ieee80211_stop_tx_ba_session(struct ieee80211_hw *hw, { struct ieee80211_local *local = hw_to_local(hw); struct sta_info *sta; - u8 *state; int ret = 0; if (WARN_ON(!local->ops->ampdu_action)) @@ -450,27 +474,8 @@ int ieee80211_stop_tx_ba_session(struct ieee80211_hw *hw, return -ENOENT; } - /* check if the TID is in aggregation */ - state = &sta->ampdu_mlme.tid_state_tx[tid]; - spin_lock_bh(&sta->lock); - - if (*state != HT_AGG_STATE_OPERATIONAL) { - ret = -ENOENT; - goto unlock; - } - -#ifdef CONFIG_MAC80211_HT_DEBUG - printk(KERN_DEBUG "Tx BA session stop requested for %pM tid %u\n", - ra, tid); -#endif /* CONFIG_MAC80211_HT_DEBUG */ - - ret = __ieee80211_stop_tx_ba_session(local, sta, tid, initiator); - - unlock: - spin_unlock_bh(&sta->lock); - + ret = __ieee80211_stop_tx_ba_session(sta, tid, initiator); rcu_read_unlock(); - return ret; } EXPORT_SYMBOL(ieee80211_stop_tx_ba_session); @@ -623,11 +628,9 @@ void ieee80211_process_addba_resp(struct ieee80211_local *local, #ifdef CONFIG_MAC80211_HT_DEBUG printk(KERN_DEBUG "Resuming TX aggregation for tid %d\n", tid); #endif /* CONFIG_MAC80211_HT_DEBUG */ - spin_unlock_bh(&sta->lock); } else { sta->ampdu_mlme.addba_req_num[tid]++; - __ieee80211_stop_tx_ba_session(local, sta, tid, - WLAN_BACK_INITIATOR); - spin_unlock_bh(&sta->lock); + ___ieee80211_stop_tx_ba_session(sta, tid, WLAN_BACK_INITIATOR); } + spin_unlock_bh(&sta->lock); } diff --git a/net/mac80211/ht.c b/net/mac80211/ht.c index 1b503f3cc54c..82ea0b63a386 100644 --- a/net/mac80211/ht.c +++ b/net/mac80211/ht.c @@ -155,15 +155,12 @@ u32 ieee80211_enable_ht(struct ieee80211_sub_if_data *sdata, void ieee80211_sta_tear_down_BA_sessions(struct sta_info *sta) { - struct ieee80211_local *local = sta->local; int i; for (i = 0; i < STA_TID_NUM; i++) { - ieee80211_stop_tx_ba_session(&local->hw, sta->sta.addr, i, - WLAN_BACK_INITIATOR); - ieee80211_sta_stop_rx_ba_session(sta->sdata, sta->sta.addr, i, - WLAN_BACK_RECIPIENT, - WLAN_REASON_QSTA_LEAVE_QBSS); + __ieee80211_stop_tx_ba_session(sta, i, WLAN_BACK_INITIATOR); + __ieee80211_stop_rx_ba_session(sta, i, WLAN_BACK_RECIPIENT, + WLAN_REASON_QSTA_LEAVE_QBSS); } } diff --git a/net/mac80211/ieee80211_i.h b/net/mac80211/ieee80211_i.h index c6858ecde312..9122416fd6af 100644 --- a/net/mac80211/ieee80211_i.h +++ b/net/mac80211/ieee80211_i.h @@ -993,6 +993,8 @@ void ieee80211_send_delba(struct ieee80211_sub_if_data *sdata, void ieee80211_sta_stop_rx_ba_session(struct ieee80211_sub_if_data *sdata, u8 *da, u16 tid, u16 initiator, u16 reason); +void __ieee80211_stop_rx_ba_session(struct sta_info *sta, u16 tid, + u16 initiator, u16 reason); void ieee80211_sta_tear_down_BA_sessions(struct sta_info *sta); void ieee80211_process_delba(struct ieee80211_sub_if_data *sdata, struct sta_info *sta, @@ -1006,6 +1008,9 @@ void ieee80211_process_addba_request(struct ieee80211_local *local, struct ieee80211_mgmt *mgmt, size_t len); +int __ieee80211_stop_tx_ba_session(struct sta_info *sta, u16 tid, + enum ieee80211_back_parties initiator); + /* Spectrum management */ void ieee80211_process_measurement_req(struct ieee80211_sub_if_data *sdata, struct ieee80211_mgmt *mgmt, -- cgit v1.2.3