mac80211: A-MPDU Tx add delBA from recipient support

This patch adds the ability to handle delBA from recipient to initiator
during an A-MPDU session

Signed-off-by: Ron Rindjunsky <ron.rindjunsky@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

1 files changed, 11 insertions, 2 deletions

diff --git a/net/mac80211/ieee80211_sta.c b/net/mac80211/ieee80211_sta.c
index c4d57346eacf..d0273ccbdbae 100644
--- a/net/mac80211/ieee80211_sta.c
+++ b/net/mac80211/ieee80211_sta.c
@@ -1403,14 +1403,23 @@ static void ieee80211_sta_process_delba(struct net_device *dev,
 
 #ifdef CONFIG_MAC80211_HT_DEBUG
         if (net_ratelimit())
-                printk(KERN_DEBUG "delba from %s on tid %d reason code %d\n",
-                        print_mac(mac, mgmt->sa), tid,
+                printk(KERN_DEBUG "delba from %s (%s) tid %d reason code %d\n",
+                        print_mac(mac, mgmt->sa),
+                        initiator ? "recipient" : "initiator", tid,
                         mgmt->u.action.u.delba.reason_code);
 #endif /* CONFIG_MAC80211_HT_DEBUG */
 
         if (initiator == WLAN_BACK_INITIATOR)
                 ieee80211_sta_stop_rx_ba_session(dev, sta->addr, tid,
                                                  WLAN_BACK_INITIATOR, 0);
+        else { /* WLAN_BACK_RECIPIENT */
+                spin_lock_bh(&sta->ampdu_mlme.ampdu_tx);
+                sta->ampdu_mlme.tid_tx[tid].state =
+                                HT_AGG_STATE_OPERATIONAL;
+                spin_unlock_bh(&sta->ampdu_mlme.ampdu_tx);
+                ieee80211_stop_tx_ba_session(&local->hw, sta->addr, tid,
+                                             WLAN_BACK_RECIPIENT);
+        }
         sta_info_put(sta);
 }