2014-02-11 14:56:26

by Felix Fietkau

[permalink] [raw]
Subject: [PATCH 3.14] mac80211: send control port protocol frames to the VO queue

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

Cc: [email protected]
Signed-off-by: Felix Fietkau <[email protected]>
---
net/mac80211/wme.c | 6 ++++++
1 file changed, 6 insertions(+)

diff --git a/net/mac80211/wme.c b/net/mac80211/wme.c
index 21211c6..2656969 100644
--- a/net/mac80211/wme.c
+++ b/net/mac80211/wme.c
@@ -107,6 +107,7 @@ u16 ieee80211_select_queue(struct ieee80211_sub_if_data *sdata,
const u8 *ra = NULL;
bool qos = false;
struct mac80211_qos_map *qos_map;
+ struct ethhdr *ehdr = (struct ethhdr *) skb->data;

if (local->hw.queues < IEEE80211_NUM_ACS || skb->len < 6) {
skb->priority = 0; /* required for correct WPA/11i MIC */
@@ -154,6 +155,11 @@ u16 ieee80211_select_queue(struct ieee80211_sub_if_data *sdata,
return IEEE80211_AC_BE;
}

+ if (ehdr->h_proto == 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 */
rcu_read_lock();
--
1.8.3.4 (Apple Git-47)