blob: f489f0ff4cb13354cbe94708642bef045f1eda72 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
|
--- a/drivers/net/wireless/ath/ath9k/hw.c
+++ b/drivers/net/wireless/ath/ath9k/hw.c
@@ -1233,6 +1233,17 @@ void ath9k_hw_init_global_settings(struc
/* As defined by IEEE 802.11-2007 17.3.8.6 */
slottime = ah->slottime + 3 * ah->coverage_class;
acktimeout = slottime + sifstime;
+
+ /*
+ * Workaround for early ACK timeouts, add an offset to match the
+ * initval's 64us ack timeout value.
+ * This was initially only meant to work around an issue with delayed
+ * BA frames in some implementations, but it has been found to fix ACK
+ * timeout issues in other cases as well.
+ */
+ if (conf->channel && conf->channel->band == IEEE80211_BAND_2GHZ)
+ acktimeout += 64 - sifstime - ah->slottime;
+
ath9k_hw_setslottime(ah, slottime);
ath9k_hw_set_ack_timeout(ah, acktimeout);
ath9k_hw_set_cts_timeout(ah, acktimeout);
|
