diff options
Diffstat (limited to 'drivers/net/wireless/mwl8k.c')
| -rw-r--r-- | drivers/net/wireless/mwl8k.c | 31 |
1 files changed, 23 insertions, 8 deletions
diff --git a/drivers/net/wireless/mwl8k.c b/drivers/net/wireless/mwl8k.c index 93fe1bd..63ee8cf 100644 --- a/drivers/net/wireless/mwl8k.c +++ b/drivers/net/wireless/mwl8k.c @@ -1818,6 +1818,7 @@ mwl8k_txq_xmit(struct ieee80211_hw *hw, int index, struct sk_buff *skb) u8 tid = 0; struct mwl8k_ampdu_stream *stream = NULL; bool start_ba_session = false; + bool mgmtframe = false; struct ieee80211_mgmt *mgmt = (struct ieee80211_mgmt *)skb->data; wh = (struct ieee80211_hdr *)skb->data; @@ -1826,6 +1827,9 @@ mwl8k_txq_xmit(struct ieee80211_hw *hw, int index, struct sk_buff *skb) else qos = 0; + if (ieee80211_is_mgmt(wh->frame_control)) + mgmtframe = true; + if (priv->ap_fw) mwl8k_encapsulate_tx_frame(skb); else @@ -1955,15 +1959,26 @@ mwl8k_txq_xmit(struct ieee80211_hw *hw, int index, struct sk_buff *skb) txq = priv->txq + index; - if (txq->len >= MWL8K_TX_DESCS) { - if (start_ba_session) { - spin_lock(&priv->stream_lock); - mwl8k_remove_stream(hw, stream); - spin_unlock(&priv->stream_lock); + /* Mgmt frames that go out frequently are probe + * responses. Other mgmt frames got out relatively + * infrequently. Hence reserve 2 buffers so that + * other mgmt frames do not get dropped due to an + * already queued probe response in one of the + * reserved buffers. + */ + + if (txq->len >= MWL8K_TX_DESCS - 2) { + if (mgmtframe == false || + txq->len == MWL8K_TX_DESCS) { + if (start_ba_session) { + spin_lock(&priv->stream_lock); + mwl8k_remove_stream(hw, stream); + spin_unlock(&priv->stream_lock); + } + spin_unlock_bh(&priv->tx_lock); + dev_kfree_skb(skb); + return; } - spin_unlock_bh(&priv->tx_lock); - dev_kfree_skb(skb); - return; } BUG_ON(txq->skb[txq->tail] != NULL); |