iwlwifi: don't stop queue in the middle of fragmented packet
This patch avoids stopping queue in the middle of the fragmented packet.
It is required that there will be ~10 (max packet/min fragment) or 16
(4 bits of frag number) free tfds all the time.
Signed-off-by: Tomas Winkler <tomas.winkler@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
diff --git a/drivers/net/wireless/iwlwifi/iwl-tx.c b/drivers/net/wireless/iwlwifi/iwl-tx.c
index f72cd0b..0182e4d 100644
--- a/drivers/net/wireless/iwlwifi/iwl-tx.c
+++ b/drivers/net/wireless/iwlwifi/iwl-tx.c
@@ -962,16 +962,16 @@
if (ret)
return ret;
- if ((iwl_queue_space(q) < q->high_mark)
- && priv->mac80211_registered) {
+ if ((iwl_queue_space(q) < q->high_mark) && priv->mac80211_registered) {
if (wait_write_ptr) {
spin_lock_irqsave(&priv->lock, flags);
txq->need_update = 1;
iwl_txq_update_write_ptr(priv, txq);
spin_unlock_irqrestore(&priv->lock, flags);
+ } else {
+ ieee80211_stop_queue(priv->hw,
+ skb_get_queue_mapping(skb));
}
-
- ieee80211_stop_queue(priv->hw, skb_get_queue_mapping(skb));
}
return 0;