diff options
Diffstat (limited to 'drivers/net/wireless')
| -rw-r--r-- | drivers/net/wireless/ath/ath9k/htc_drv_txrx.c | 137 |
1 files changed, 73 insertions, 64 deletions
diff --git a/drivers/net/wireless/ath/ath9k/htc_drv_txrx.c b/drivers/net/wireless/ath/ath9k/htc_drv_txrx.c index ee5b3e2..944440c 100644 --- a/drivers/net/wireless/ath/ath9k/htc_drv_txrx.c +++ b/drivers/net/wireless/ath/ath9k/htc_drv_txrx.c @@ -325,8 +325,8 @@ send: return htc_send(priv->htc, skb); } -static bool ath9k_htc_check_tx_aggr(struct ath9k_htc_priv *priv, - struct ath9k_htc_sta *ista, u8 tid) +static inline bool __ath9k_htc_check_tx_aggr(struct ath9k_htc_priv *priv, + struct ath9k_htc_sta *ista, u8 tid) { bool ret = false; @@ -338,89 +338,98 @@ static bool ath9k_htc_check_tx_aggr(struct ath9k_htc_priv *priv, return ret; } -void ath9k_tx_tasklet(unsigned long data) +static void ath9k_htc_check_tx_aggr(struct ath9k_htc_priv *priv, + struct ieee80211_vif *vif, + struct sk_buff *skb) { - struct ath9k_htc_priv *priv = (struct ath9k_htc_priv *)data; - struct ath9k_htc_tx_ctl *tx_ctl; - struct ieee80211_vif *vif; struct ieee80211_sta *sta; struct ieee80211_hdr *hdr; - struct ieee80211_tx_info *tx_info; - struct sk_buff *skb = NULL; __le16 fc; - bool txok; - int slot; - while ((skb = skb_dequeue(&priv->tx.tx_queue)) != NULL) { + hdr = (struct ieee80211_hdr *) skb->data; + fc = hdr->frame_control; - slot = strip_drv_header(priv, skb); - if (slot < 0) { - dev_kfree_skb_any(skb); - continue; - } + rcu_read_lock(); - tx_ctl = HTC_SKB_CB(skb); - hdr = (struct ieee80211_hdr *) skb->data; - fc = hdr->frame_control; - tx_info = IEEE80211_SKB_CB(skb); - vif = tx_info->control.vif; - txok = tx_ctl->txok; + sta = ieee80211_find_sta(vif, hdr->addr1); + if (!sta) { + rcu_read_unlock(); + return; + } - memset(&tx_info->status, 0, sizeof(tx_info->status)); + if (sta && conf_is_ht(&priv->hw->conf) && + !(skb->protocol == cpu_to_be16(ETH_P_PAE))) { + if (ieee80211_is_data_qos(fc)) { + u8 *qc, tid; + struct ath9k_htc_sta *ista; - /* - * URB submission failed for this frame, it never reached - * the target. - */ - if (!txok) - goto send_mac80211; + qc = ieee80211_get_qos_ctl(hdr); + tid = qc[0] & 0xf; + ista = (struct ath9k_htc_sta *)sta->drv_priv; + if (__ath9k_htc_check_tx_aggr(priv, ista, tid)) { + ieee80211_start_tx_ba_session(sta, tid, 0); + spin_lock_bh(&priv->tx.tx_lock); + ista->tid_state[tid] = AGGR_PROGRESS; + spin_unlock_bh(&priv->tx.tx_lock); + } + } + } - tx_info->flags |= IEEE80211_TX_STAT_ACK; + rcu_read_unlock(); +} - if (!vif) - goto send_mac80211; +static void ath9k_htc_tx_process(struct ath9k_htc_priv *priv, + struct sk_buff *skb) +{ + struct ieee80211_vif *vif; + struct ath9k_htc_tx_ctl *tx_ctl; + struct ieee80211_tx_info *tx_info; + bool txok; + int slot; - rcu_read_lock(); + slot = strip_drv_header(priv, skb); + if (slot < 0) { + dev_kfree_skb_any(skb); + return; + } - sta = ieee80211_find_sta(vif, hdr->addr1); - if (!sta) { - rcu_read_unlock(); - goto send_mac80211; - } + tx_ctl = HTC_SKB_CB(skb); + txok = tx_ctl->txok; + tx_info = IEEE80211_SKB_CB(skb); + vif = tx_info->control.vif; - /* Check if we need to start aggregation */ + memset(&tx_info->status, 0, sizeof(tx_info->status)); - if (sta && conf_is_ht(&priv->hw->conf) && - !(skb->protocol == cpu_to_be16(ETH_P_PAE))) { - if (ieee80211_is_data_qos(fc)) { - u8 *qc, tid; - struct ath9k_htc_sta *ista; + /* + * URB submission failed for this frame, it never reached + * the target. + */ + if (!txok || !vif) + goto send_mac80211; - qc = ieee80211_get_qos_ctl(hdr); - tid = qc[0] & 0xf; - ista = (struct ath9k_htc_sta *)sta->drv_priv; + tx_info->flags |= IEEE80211_TX_STAT_ACK; - if (ath9k_htc_check_tx_aggr(priv, ista, tid)) { - ieee80211_start_tx_ba_session(sta, tid, 0); - spin_lock_bh(&priv->tx.tx_lock); - ista->tid_state[tid] = AGGR_PROGRESS; - spin_unlock_bh(&priv->tx.tx_lock); - } - } - } + ath9k_htc_check_tx_aggr(priv, vif, skb); - rcu_read_unlock(); +send_mac80211: + spin_lock_bh(&priv->tx.tx_lock); + if (WARN_ON(--priv->tx.queued_cnt < 0)) + priv->tx.queued_cnt = 0; + spin_unlock_bh(&priv->tx.tx_lock); - send_mac80211: - spin_lock_bh(&priv->tx.tx_lock); - if (WARN_ON(--priv->tx.queued_cnt < 0)) - priv->tx.queued_cnt = 0; - spin_unlock_bh(&priv->tx.tx_lock); + ath9k_htc_tx_clear_slot(priv, slot); + + /* Send status to mac80211 */ + ieee80211_tx_status(priv->hw, skb); +} - ath9k_htc_tx_clear_slot(priv, slot); +void ath9k_tx_tasklet(unsigned long data) +{ + struct ath9k_htc_priv *priv = (struct ath9k_htc_priv *)data; + struct sk_buff *skb = NULL; - /* Send status to mac80211 */ - ieee80211_tx_status(priv->hw, skb); + while ((skb = skb_dequeue(&priv->tx.tx_queue)) != NULL) { + ath9k_htc_tx_process(priv, skb); } /* Wake TX queues if needed */ |