ath9k: add a workaround for the tx ack time issue triggered by the timing handling...
[openwrt/svn-archive/archive.git] / package / mac80211 / patches / 580-ath9k_ack_timeout_workaround.patch
1 --- a/drivers/net/wireless/ath/ath9k/hw.c
2 +++ b/drivers/net/wireless/ath/ath9k/hw.c
3 @@ -1229,6 +1229,11 @@ void ath9k_hw_init_global_settings(struc
4 /* As defined by IEEE 802.11-2007 17.3.8.6 */
5 slottime = ah->slottime + 3 * ah->coverage_class;
6 acktimeout = slottime + sifstime;
7 +
8 + /* Workaround for a hw issue */
9 + if (conf->channel && conf->channel->band == IEEE80211_BAND_2GHZ)
10 + acktimeout = max(64, acktimeout);
11 +
12 ath9k_hw_setslottime(ah, slottime);
13 ath9k_hw_set_ack_timeout(ah, acktimeout);
14 ath9k_hw_set_cts_timeout(ah, acktimeout);