mac80211: Add a new event in ieee80211_ampdu_mlme_action

Send a notification to the driver on succesful
reception of an ADDBA response, add IEEE80211_AMPDU_TX_RESUME
for this purpose.

Signed-off-by: Sujith <Sujith.Manoharan@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

3 files changed, 23 insertions, 0 deletions

diff --git a/drivers/net/wireless/ath9k/core.h b/drivers/net/wireless/ath9k/core.h
index 5b17e88ab9a..69e8d3e4113 100644
--- a/drivers/net/wireless/ath9k/core.h
+++ b/drivers/net/wireless/ath9k/core.h
@@ -581,6 +581,7 @@ void ath_tx_aggr_teardown(struct ath_softc *sc,
 int ath_tx_aggr_start(struct ath_softc *sc, struct ieee80211_sta *sta,
                       u16 tid, u16 *ssn);
 int ath_tx_aggr_stop(struct ath_softc *sc, struct ieee80211_sta *sta, u16 tid);
+void ath_tx_aggr_resume(struct ath_softc *sc, struct ieee80211_sta *sta, u16 tid);
 void ath_newassoc(struct ath_softc *sc,
         struct ath_node *node, int isnew, int isuapsd);
 void ath_node_attach(struct ath_softc *sc, struct ieee80211_sta *sta);
diff --git a/drivers/net/wireless/ath9k/main.c b/drivers/net/wireless/ath9k/main.c
index 65a532e08ec..fb50aa0fc99 100644
--- a/drivers/net/wireless/ath9k/main.c
+++ b/drivers/net/wireless/ath9k/main.c
@@ -1482,6 +1482,9 @@ static int ath9k_ampdu_action(struct ieee80211_hw *hw,
 
                 ieee80211_stop_tx_ba_cb_irqsafe(hw, sta->addr, tid);
                 break;
+        case IEEE80211_AMPDU_TX_RESUME:
+                ath_tx_aggr_resume(sc, sta, tid);
+                break;
         default:
                 DPRINTF(sc, ATH_DBG_FATAL,
                         "%s: Unknown AMPDU action\n", __func__);
diff --git a/drivers/net/wireless/ath9k/xmit.c b/drivers/net/wireless/ath9k/xmit.c
index 7e6f4e59a5d..fe386b6dada 100644
--- a/drivers/net/wireless/ath9k/xmit.c
+++ b/drivers/net/wireless/ath9k/xmit.c
@@ -2371,6 +2371,25 @@ int ath_tx_aggr_stop(struct ath_softc *sc, struct ieee80211_sta *sta, u16 tid)
         return 0;
 }
 
+/* Resume tx aggregation */
+
+void ath_tx_aggr_resume(struct ath_softc *sc, struct ieee80211_sta *sta, u16 tid)
+{
+        struct ath_atx_tid *txtid;
+        struct ath_node *an;
+
+        an = (struct ath_node *)sta->drv_priv;
+
+        if (sc->sc_flags & SC_OP_TXAGGR) {
+                txtid = ATH_AN_2_TID(an, tid);
+                txtid->baw_size =
+                        IEEE80211_MIN_AMPDU_BUF << sta->ht_cap.ampdu_factor;
+                txtid->state |= AGGR_ADDBA_COMPLETE;
+                txtid->state &= ~AGGR_ADDBA_PROGRESS;
+                ath_tx_resume_tid(sc, txtid);
+        }
+}
+
 /*
  * Performs transmit side cleanup when TID changes from aggregated to
  * unaggregated.