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@xxxxxxxxx>
---
drivers/net/wireless/iwlwifi/iwl-tx.c | 8 ++++----
1 files changed, 4 insertions(+), 4 deletions(-)
diff --git a/drivers/net/wireless/iwlwifi/iwl-tx.c b/drivers/net/wireless/iwlwifi/iwl-tx.c
index cf81e2e..8f4a85a 100644
--- a/drivers/net/wireless/iwlwifi/iwl-tx.c
+++ b/drivers/net/wireless/iwlwifi/iwl-tx.c
@@ -976,16 +976,16 @@ int iwl_tx_skb(struct iwl_priv *priv, struct sk_buff *skb)
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;
--
1.5.4.1
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