mac80211: initialise queue QoS parameters at hw start

When hardware is started it might be in a confused state with
respect to queue QoS parameters. This patch changes mac80211
to set sane defaults right after the hardware is brought up.

Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
Cc: Michael Buesch <mb@bu3sch.de>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

1 files changed, 26 insertions, 0 deletions

diff --git a/net/mac80211/util.c b/net/mac80211/util.c
index e19c74cada39..55be3ef5c755 100644
--- a/net/mac80211/util.c
+++ b/net/mac80211/util.c
@@ -572,3 +572,29 @@ void ieee802_11_parse_elems(u8 *start, size_t len,
                 pos += elen;
         }
 }
+
+void ieee80211_set_wmm_default(struct ieee80211_sub_if_data *sdata)
+{
+        struct ieee80211_local *local = sdata->local;
+        struct ieee80211_tx_queue_params qparam;
+        int i;
+
+        if (!local->ops->conf_tx)
+                return;
+
+        memset(&qparam, 0, sizeof(qparam));
+
+        qparam.aifs = 2;
+
+        if (local->hw.conf.channel->band == IEEE80211_BAND_2GHZ &&
+            !(sdata->flags & IEEE80211_SDATA_OPERATING_GMODE))
+                qparam.cw_min = 31;
+        else
+                qparam.cw_min = 15;
+
+        qparam.cw_max = 1023;
+        qparam.txop = 0;
+
+        for (i = 0; i < local_to_hw(local)->queues; i++)
+                local->ops->conf_tx(local_to_hw(local), i, &qparam);
+}