mac80211: give burst time in txop rather than 0.1msec units

This changes mac80211 to pass the burst time to conf_tx in txop
units rather than 0.1msec units. 0.1msec units are only required
by atheros hardware (according to current driver support), all
other drivers do other calculations or require the txop value.
Therefore, it results in fewer calculations and more precision
if we just pass the txop value through to the driver.

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

1 files changed, 6 insertions, 5 deletions

diff --git a/net/mac80211/ieee80211_sta.c b/net/mac80211/ieee80211_sta.c
index a8251a23917b..11f2ee6b2269 100644
--- a/net/mac80211/ieee80211_sta.c
+++ b/net/mac80211/ieee80211_sta.c
@@ -297,12 +297,13 @@ static void ieee80211_sta_wmm_params(struct net_device *dev,
                 params.aifs = pos[0] & 0x0f;
                 params.cw_max = ecw2cw((pos[1] & 0xf0) >> 4);
                 params.cw_min = ecw2cw(pos[1] & 0x0f);
-                /* TXOP is in units of 32 usec; burst_time in 0.1 ms */
-                params.burst_time = (pos[2] | (pos[3] << 8)) * 32 / 100;
+                params.txop = pos[2] | (pos[3] << 8);
+#ifdef CONFIG_MAC80211_DEBUG
                 printk(KERN_DEBUG "%s: WMM queue=%d aci=%d acm=%d aifs=%d "
-                       "cWmin=%d cWmax=%d burst=%d\n",
+                       "cWmin=%d cWmax=%d txop=%d\n",
                        dev->name, queue, aci, acm, params.aifs, params.cw_min,
-                       params.cw_max, params.burst_time);
+                       params.cw_max, params.txop);
+#endif
                 /* TODO: handle ACM (block TX, fallback to next lowest allowed
                  * AC for now) */
                 if (local->ops->conf_tx(local_to_hw(local), queue, &params)) {
@@ -3230,7 +3231,7 @@ int ieee80211_sta_set_ssid(struct net_device *dev, char *ssid, size_t len)
                         qparam.cw_min = 15;
 
                 qparam.cw_max = 1023;
-                qparam.burst_time = 0;
+                qparam.txop = 0;
 
                 for (i = IEEE80211_TX_QUEUE_DATA0; i < NUM_TX_DATA_QUEUES; i++)
                         local->ops->conf_tx(local_to_hw(local),