qcacmn: Fix to accept Addba req when BA session is active

Currently, if BA session for a tid is active, we tear down
current session and do not send an addba response. Clients are expected
to send new addba req. But this is not happening, therefore
we accept new addba req after flushing tid queue and then setup
queue with latest addba request values.

Also change is made to not update ssn to 0 so that old sequence
can be continued to use.

Change-Id: I129ce74d7414c3255d5a4360f39fec9ed3d7650f
CRs-fixed: 2428837

dp/wifi3.0/dp_peer.c

@@ -2244,7 +2244,7 @@ int dp_addba_resp_tx_completion_wifi3(void *peer_handle,
 	qdf_spin_lock_bh(&rx_tid->tid_lock);
 	if (status) {
 		rx_tid->num_addba_rsp_failed++;
-		dp_rx_tid_update_wifi3(peer, tid, 1, 0);
+		dp_rx_tid_update_wifi3(peer, tid, 1, IEEE80211_SEQ_MAX);
 		rx_tid->ba_status = DP_RX_BA_INACTIVE;
 		qdf_spin_unlock_bh(&rx_tid->tid_lock);
 		QDF_TRACE(QDF_MODULE_ID_DP, QDF_TRACE_LEVEL_ERROR,
@@ -2401,14 +2401,12 @@ int dp_addba_requestprocess_wifi3(void *peer_handle,
 	rx_tid->num_of_addba_req++;
 	if ((rx_tid->ba_status == DP_RX_BA_ACTIVE &&
 	     rx_tid->hw_qdesc_vaddr_unaligned)) {
-		dp_rx_tid_update_wifi3(peer, tid, 1, 0);
+		dp_rx_tid_update_wifi3(peer, tid, 1, IEEE80211_SEQ_MAX);
 		rx_tid->ba_status = DP_RX_BA_INACTIVE;
 		peer->active_ba_session_cnt--;
-		qdf_spin_unlock_bh(&rx_tid->tid_lock);
-		QDF_TRACE(QDF_MODULE_ID_DP, QDF_TRACE_LEVEL_ERROR,
-			  "%s: Rx Tid- %d hw qdesc is already setup",
-			__func__, tid);
-		return QDF_STATUS_E_FAILURE;
+		QDF_TRACE(QDF_MODULE_ID_DP, QDF_TRACE_LEVEL_DEBUG,
+			  "%s: Addba recvd for Rx Tid-%d hw qdesc is already setup",
+			  __func__, tid);
 	}
 
 	if (rx_tid->ba_status == DP_RX_BA_IN_PROGRESS) {
@@ -2482,7 +2480,7 @@ int dp_delba_process_wifi3(void *peer_handle,
 	 */
 	rx_tid->delba_rcode = reasoncode;
 	rx_tid->num_of_delba_req++;
-	dp_rx_tid_update_wifi3(peer, tid, 1, 0);
+	dp_rx_tid_update_wifi3(peer, tid, 1, IEEE80211_SEQ_MAX);
 
 	rx_tid->ba_status = DP_RX_BA_INACTIVE;
 	peer->active_ba_session_cnt--;
@@ -2534,12 +2532,12 @@ int dp_delba_tx_completion_wifi3(void *peer_handle,
 		rx_tid->delba_tx_status = 0;
 	}
 	if (rx_tid->ba_status == DP_RX_BA_ACTIVE) {
-		dp_rx_tid_update_wifi3(peer, tid, 1, 0);
+		dp_rx_tid_update_wifi3(peer, tid, 1, IEEE80211_SEQ_MAX);
 		rx_tid->ba_status = DP_RX_BA_INACTIVE;
 		peer->active_ba_session_cnt--;
 	}
 	if (rx_tid->ba_status == DP_RX_BA_IN_PROGRESS) {
-		dp_rx_tid_update_wifi3(peer, tid, 1, 0);
+		dp_rx_tid_update_wifi3(peer, tid, 1, IEEE80211_SEQ_MAX);
 		rx_tid->ba_status = DP_RX_BA_INACTIVE;
 	}
 	qdf_spin_unlock_bh(&rx_tid->tid_lock);