[PATCH 3.10 13/85] mac80211: send control port protocol frames to the VO queue

Greg Kroah-Hartman
2014-03-21T00:48:29Z

From: Felix Fietkau <nbd@openwrt.org>

commit 1bf4bbb4024dcdab5e57634dd8ae1072d42a53ac upstream.

Improves reliability of wifi connections with WPA, since authentication
frames are prioritized over normal traffic and also typically exempt
from aggregation.

Signed-off-by: Felix Fietkau <nbd@openwrt.org>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

---
net/mac80211/wme.c | 5 +++++
1 file changed, 5 insertions(+)

--- a/net/mac80211/wme.c
+++ b/net/mac80211/wme.c
@@ -153,6 +153,11 @@ u16 ieee80211_select_queue(struct ieee80
return IEEE80211_AC_BE;
}

+ if (skb->protocol == sdata->control_port_protocol) {
+ skb->priority = 7;
+ return ieee80211_downgrade_queue(sdata, skb);
+ }
+
/* use the data classifier to determine what 802.1d tag the
* data frame has */
skb->priority = cfg80211_classify8021d(skb);