rt2x00: Don't kick TX queue after each frame

TX queues shouldn't be kicked after each frame that is put into the
queue.  This could cause problems during RTS and CTS-to-self as well
as with fragmentation. In all those cases you want all frames to be
send out in a single burst. Off course we shouldn't let the queue fill
up entirely, thus we introduce a 10% threshold which, when reached,
will force the frames to be send out regardless of the frame.

In addition we should prevent queues to become full in such a way
that the tx() handler can fail. Instead of stopping the queue when
it is full, we should stop it when it is below the threshold.

Signed-off-by: Ivo van Doorn <IvDoorn@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

1 files changed, 3 insertions, 3 deletions

diff --git a/drivers/net/wireless/rt2x00/rt2x00pci.c b/drivers/net/wireless/rt2x00/rt2x00pci.c
index a6bac75de9f2..9745277c81ce 100644
--- a/drivers/net/wireless/rt2x00/rt2x00pci.c
+++ b/drivers/net/wireless/rt2x00/rt2x00pci.c
@@ -170,11 +170,11 @@ void rt2x00pci_txdone(struct rt2x00_dev *rt2x00dev, struct queue_entry *entry,
         rt2x00queue_index_inc(entry->queue, Q_INDEX_DONE);
 
         /*
-         * If the data queue was full before the txdone handler
-         * we must make sure the packet queue in the mac80211 stack
+         * If the data queue was below the threshold before the txdone
+         * handler we must make sure the packet queue in the mac80211 stack
          * is reenabled when the txdone handler has finished.
          */
-        if (!rt2x00queue_full(entry->queue))
+        if (!rt2x00queue_threshold(entry->queue))
                 ieee80211_wake_queue(rt2x00dev->hw, qid);
 
 }