ath9k: Add support for multiple virtual AP interfaces

This patch fixes the TSF offset calculation for staggered Beacon frames
and sets ATH_BCBUF back to the earlier value 4 to enable multi-BSS
configurations of up to four BSSes.

Signed-off-by: Jouni Malinen <jouni.malinen@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

1 files changed, 2 insertions, 1 deletions

diff --git a/drivers/net/wireless/ath9k/ath9k.h b/drivers/net/wireless/ath9k/ath9k.h
index b64be8e9a690..5afd244ea6a3 100644
--- a/drivers/net/wireless/ath9k/ath9k.h
+++ b/drivers/net/wireless/ath9k/ath9k.h
@@ -390,6 +390,7 @@ void ath_tx_aggr_resume(struct ath_softc *sc, struct ieee80211_sta *sta, u16 tid
 
 struct ath_vif {
         int av_bslot;
+        __le64 tsf_adjust; /* TSF adjustment for staggered beacons */
         enum nl80211_iftype av_opmode;
         struct ath_buf *av_bcbuf;
         struct ath_tx_control av_btxctl;
@@ -406,7 +407,7 @@ struct ath_vif {
  * number of beacon intervals, the game's up.
  */
 #define BSTUCK_THRESH                   (9 * ATH_BCBUF)
-#define ATH_BCBUF                       1
+#define ATH_BCBUF                       4
 #define ATH_DEFAULT_BINTVAL             100 /* TU */
 #define ATH_DEFAULT_BMISS_LIMIT         10
 #define IEEE80211_MS_TO_TU(x)           (((x) * 1000) / 1024)