diff options
Diffstat (limited to 'net')
| -rw-r--r-- | net/mac80211/agg-rx.c | 41 | ||||
| -rw-r--r-- | net/mac80211/agg-tx.c | 44 | ||||
| -rw-r--r-- | net/mac80211/sta_info.c | 8 | ||||
| -rw-r--r-- | net/mac80211/sta_info.h | 12 |
4 files changed, 45 insertions, 60 deletions
diff --git a/net/mac80211/agg-rx.c b/net/mac80211/agg-rx.c index 88cc1ae935ea..d444752dbf40 100644 --- a/net/mac80211/agg-rx.c +++ b/net/mac80211/agg-rx.c @@ -151,21 +151,17 @@ EXPORT_SYMBOL(ieee80211_stop_rx_ba_session); * After accepting the AddBA Request we activated a timer, * resetting it after each frame that arrives from the originator. */ -static void sta_rx_agg_session_timer_expired(unsigned long data) +static void sta_rx_agg_session_timer_expired(struct timer_list *t) { - /* not an elegant detour, but there is no choice as the timer passes - * only one argument, and various sta_info are needed here, so init - * flow in sta_info_create gives the TID as data, while the timer_to_id - * array gives the sta through container_of */ - u8 *ptid = (u8 *)data; - u8 *timer_to_id = ptid - *ptid; - struct sta_info *sta = container_of(timer_to_id, struct sta_info, - timer_to_tid[0]); + struct tid_ampdu_rx *tid_rx_timer = + from_timer(tid_rx_timer, t, session_timer); + struct sta_info *sta = tid_rx_timer->sta; + u8 tid = tid_rx_timer->tid; struct tid_ampdu_rx *tid_rx; unsigned long timeout; rcu_read_lock(); - tid_rx = rcu_dereference(sta->ampdu_mlme.tid_rx[*ptid]); + tid_rx = rcu_dereference(sta->ampdu_mlme.tid_rx[tid]); if (!tid_rx) { rcu_read_unlock(); return; @@ -180,21 +176,18 @@ static void sta_rx_agg_session_timer_expired(unsigned long data) rcu_read_unlock(); ht_dbg(sta->sdata, "RX session timer expired on %pM tid %d\n", - sta->sta.addr, (u16)*ptid); + sta->sta.addr, tid); - set_bit(*ptid, sta->ampdu_mlme.tid_rx_timer_expired); + set_bit(tid, sta->ampdu_mlme.tid_rx_timer_expired); ieee80211_queue_work(&sta->local->hw, &sta->ampdu_mlme.work); } -static void sta_rx_agg_reorder_timer_expired(unsigned long data) +static void sta_rx_agg_reorder_timer_expired(struct timer_list *t) { - u8 *ptid = (u8 *)data; - u8 *timer_to_id = ptid - *ptid; - struct sta_info *sta = container_of(timer_to_id, struct sta_info, - timer_to_tid[0]); + struct tid_ampdu_rx *tid_rx = from_timer(tid_rx, t, reorder_timer); rcu_read_lock(); - ieee80211_release_reorder_timeout(sta, *ptid); + ieee80211_release_reorder_timeout(tid_rx->sta, tid_rx->tid); rcu_read_unlock(); } @@ -356,14 +349,12 @@ void ___ieee80211_start_rx_ba_session(struct sta_info *sta, spin_lock_init(&tid_agg_rx->reorder_lock); /* rx timer */ - setup_deferrable_timer(&tid_agg_rx->session_timer, - sta_rx_agg_session_timer_expired, - (unsigned long)&sta->timer_to_tid[tid]); + timer_setup(&tid_agg_rx->session_timer, + sta_rx_agg_session_timer_expired, TIMER_DEFERRABLE); /* rx reorder timer */ - setup_timer(&tid_agg_rx->reorder_timer, - sta_rx_agg_reorder_timer_expired, - (unsigned long)&sta->timer_to_tid[tid]); + timer_setup(&tid_agg_rx->reorder_timer, + sta_rx_agg_reorder_timer_expired, 0); /* prepare reordering buffer */ tid_agg_rx->reorder_buf = @@ -399,6 +390,8 @@ void ___ieee80211_start_rx_ba_session(struct sta_info *sta, tid_agg_rx->auto_seq = auto_seq; tid_agg_rx->started = false; tid_agg_rx->reorder_buf_filtered = 0; + tid_agg_rx->tid = tid; + tid_agg_rx->sta = sta; status = WLAN_STATUS_SUCCESS; /* activate it for RX */ diff --git a/net/mac80211/agg-tx.c b/net/mac80211/agg-tx.c index bef516ec47f9..3680b380e70c 100644 --- a/net/mac80211/agg-tx.c +++ b/net/mac80211/agg-tx.c @@ -422,15 +422,12 @@ int ___ieee80211_stop_tx_ba_session(struct sta_info *sta, u16 tid, * add Block Ack response will arrive from the recipient. * If this timer expires sta_addba_resp_timer_expired will be executed. */ -static void sta_addba_resp_timer_expired(unsigned long data) +static void sta_addba_resp_timer_expired(struct timer_list *t) { - /* not an elegant detour, but there is no choice as the timer passes - * only one argument, and both sta_info and TID are needed, so init - * flow in sta_info_create gives the TID as data, while the timer_to_id - * array gives the sta through container_of */ - u16 tid = *(u8 *)data; - struct sta_info *sta = container_of((void *)data, - struct sta_info, timer_to_tid[tid]); + struct tid_ampdu_tx *tid_tx_timer = + from_timer(tid_tx_timer, t, addba_resp_timer); + struct sta_info *sta = tid_tx_timer->sta; + u8 tid = tid_tx_timer->tid; struct tid_ampdu_tx *tid_tx; /* check if the TID waits for addBA response */ @@ -525,21 +522,17 @@ void ieee80211_tx_ba_session_handle_start(struct sta_info *sta, int tid) * After accepting the AddBA Response we activated a timer, * resetting it after each frame that we send. */ -static void sta_tx_agg_session_timer_expired(unsigned long data) +static void sta_tx_agg_session_timer_expired(struct timer_list *t) { - /* not an elegant detour, but there is no choice as the timer passes - * only one argument, and various sta_info are needed here, so init - * flow in sta_info_create gives the TID as data, while the timer_to_id - * array gives the sta through container_of */ - u8 *ptid = (u8 *)data; - u8 *timer_to_id = ptid - *ptid; - struct sta_info *sta = container_of(timer_to_id, struct sta_info, - timer_to_tid[0]); + struct tid_ampdu_tx *tid_tx_timer = + from_timer(tid_tx_timer, t, session_timer); + struct sta_info *sta = tid_tx_timer->sta; + u8 tid = tid_tx_timer->tid; struct tid_ampdu_tx *tid_tx; unsigned long timeout; rcu_read_lock(); - tid_tx = rcu_dereference(sta->ampdu_mlme.tid_tx[*ptid]); + tid_tx = rcu_dereference(sta->ampdu_mlme.tid_tx[tid]); if (!tid_tx || test_bit(HT_AGG_STATE_STOPPING, &tid_tx->state)) { rcu_read_unlock(); return; @@ -555,9 +548,9 @@ static void sta_tx_agg_session_timer_expired(unsigned long data) rcu_read_unlock(); ht_dbg(sta->sdata, "tx session timer expired on %pM tid %d\n", - sta->sta.addr, (u16)*ptid); + sta->sta.addr, tid); - ieee80211_stop_tx_ba_session(&sta->sta, *ptid); + ieee80211_stop_tx_ba_session(&sta->sta, tid); } int ieee80211_start_tx_ba_session(struct ieee80211_sta *pubsta, u16 tid, @@ -670,16 +663,15 @@ int ieee80211_start_tx_ba_session(struct ieee80211_sta *pubsta, u16 tid, __set_bit(HT_AGG_STATE_WANT_START, &tid_tx->state); tid_tx->timeout = timeout; + tid_tx->sta = sta; + tid_tx->tid = tid; /* response timer */ - setup_timer(&tid_tx->addba_resp_timer, - sta_addba_resp_timer_expired, - (unsigned long)&sta->timer_to_tid[tid]); + timer_setup(&tid_tx->addba_resp_timer, sta_addba_resp_timer_expired, 0); /* tx timer */ - setup_deferrable_timer(&tid_tx->session_timer, - sta_tx_agg_session_timer_expired, - (unsigned long)&sta->timer_to_tid[tid]); + timer_setup(&tid_tx->session_timer, + sta_tx_agg_session_timer_expired, TIMER_DEFERRABLE); /* assign a dialog token */ sta->ampdu_mlme.dialog_token_allocator++; diff --git a/net/mac80211/sta_info.c b/net/mac80211/sta_info.c index 0e50065e3433..0c5627f8a104 100644 --- a/net/mac80211/sta_info.c +++ b/net/mac80211/sta_info.c @@ -379,14 +379,6 @@ struct sta_info *sta_info_alloc(struct ieee80211_sub_if_data *sdata, if (sta_prepare_rate_control(local, sta, gfp)) goto free_txq; - for (i = 0; i < IEEE80211_NUM_TIDS; i++) { - /* - * timer_to_tid must be initialized with identity mapping - * to enable session_timer's data differentiation. See - * sta_rx_agg_session_timer_expired for usage. - */ - sta->timer_to_tid[i] = i; - } for (i = 0; i < IEEE80211_NUM_ACS; i++) { skb_queue_head_init(&sta->ps_tx_buf[i]); skb_queue_head_init(&sta->tx_filtered[i]); diff --git a/net/mac80211/sta_info.h b/net/mac80211/sta_info.h index 5c54acd10562..cd53619435b6 100644 --- a/net/mac80211/sta_info.h +++ b/net/mac80211/sta_info.h @@ -126,6 +126,8 @@ enum ieee80211_agg_stop_reason { AGG_STOP_DESTROY_STA, }; +struct sta_info; + /** * struct tid_ampdu_tx - TID aggregation information (Tx). * @@ -133,8 +135,10 @@ enum ieee80211_agg_stop_reason { * @session_timer: check if we keep Tx-ing on the TID (by timeout value) * @addba_resp_timer: timer for peer's response to addba request * @pending: pending frames queue -- use sta's spinlock to protect + * @sta: station we are attached to * @dialog_token: dialog token for aggregation session * @timeout: session timeout value to be filled in ADDBA requests + * @tid: TID number * @state: session state (see above) * @last_tx: jiffies of last tx activity * @stop_initiator: initiator of a session stop @@ -158,6 +162,7 @@ struct tid_ampdu_tx { struct timer_list session_timer; struct timer_list addba_resp_timer; struct sk_buff_head pending; + struct sta_info *sta; unsigned long state; unsigned long last_tx; u16 timeout; @@ -169,6 +174,7 @@ struct tid_ampdu_tx { u16 failed_bar_ssn; bool bar_pending; bool amsdu; + u8 tid; }; /** @@ -181,12 +187,14 @@ struct tid_ampdu_tx { * @reorder_time: jiffies when skb was added * @session_timer: check if peer keeps Tx-ing on the TID (by timeout value) * @reorder_timer: releases expired frames from the reorder buffer. + * @sta: station we are attached to * @last_rx: jiffies of last rx activity * @head_seq_num: head sequence number in reordering buffer. * @stored_mpdu_num: number of MPDUs in reordering buffer * @ssn: Starting Sequence Number expected to be aggregated. * @buf_size: buffer size for incoming A-MPDUs * @timeout: reset timer value (in TUs). + * @tid: TID number * @rcu_head: RCU head used for freeing this struct * @reorder_lock: serializes access to reorder buffer, see below. * @auto_seq: used for offloaded BA sessions to automatically pick head_seq_and @@ -208,6 +216,7 @@ struct tid_ampdu_rx { u64 reorder_buf_filtered; struct sk_buff_head *reorder_buf; unsigned long *reorder_time; + struct sta_info *sta; struct timer_list session_timer; struct timer_list reorder_timer; unsigned long last_rx; @@ -216,6 +225,7 @@ struct tid_ampdu_rx { u16 ssn; u16 buf_size; u16 timeout; + u8 tid; u8 auto_seq:1, removed:1, started:1; @@ -447,7 +457,6 @@ struct ieee80211_sta_rx_stats { * plus one for non-QoS frames) * @tid_seq: per-TID sequence numbers for sending to this STA * @ampdu_mlme: A-MPDU state machine state - * @timer_to_tid: identity mapping to ID timers * @mesh: mesh STA information * @debugfs_dir: debug filesystem directory dentry * @dead: set to true when sta is unlinked @@ -554,7 +563,6 @@ struct sta_info { * Aggregation information, locked with lock. */ struct sta_ampdu_mlme ampdu_mlme; - u8 timer_to_tid[IEEE80211_NUM_TIDS]; #ifdef CONFIG_MAC80211_DEBUGFS struct dentry *debugfs_dir; |