1 files changed, 77 insertions, 1 deletions

diff --git a/drivers/net/wireless/marvell/mwifiex/11n_rxreorder.c b/drivers/net/wireless/marvell/mwifiex/11n_rxreorder.c
index a74cc43b1953..94480123efa3 100644
--- a/drivers/net/wireless/marvell/mwifiex/11n_rxreorder.c
+++ b/drivers/net/wireless/marvell/mwifiex/11n_rxreorder.c
@@ -78,8 +78,15 @@ static int mwifiex_11n_dispatch_amsdu_pkt(struct mwifiex_private *priv,
  */
 static int mwifiex_11n_dispatch_pkt(struct mwifiex_private *priv, void *payload)
 {
-	int ret = mwifiex_11n_dispatch_amsdu_pkt(priv, payload);
 
+	int ret;
+
+	if (!payload) {
+		mwifiex_dbg(priv->adapter, INFO, "info: fw drop data\n");
+		return 0;
+	}
+
+	ret = mwifiex_11n_dispatch_amsdu_pkt(priv, payload);
 	if (!ret)
 		return 0;
 
@@ -921,3 +928,72 @@ void mwifiex_coex_ampdu_rxwinsize(struct mwifiex_adapter *adapter)
 	else
 		mwifiex_update_ampdu_rxwinsize(adapter, false);
 }
+
+/* This function handles rxba_sync event
+ */
+void mwifiex_11n_rxba_sync_event(struct mwifiex_private *priv,
+				 u8 *event_buf, u16 len)
+{
+	struct mwifiex_ie_types_rxba_sync *tlv_rxba = (void *)event_buf;
+	u16 tlv_type, tlv_len;
+	struct mwifiex_rx_reorder_tbl *rx_reor_tbl_ptr;
+	u8 i, j;
+	u16 seq_num, tlv_seq_num, tlv_bitmap_len;
+	int tlv_buf_left = len;
+	int ret;
+	u8 *tmp;
+
+	mwifiex_dbg_dump(priv->adapter, EVT_D, "RXBA_SYNC event:",
+			 event_buf, len);
+	while (tlv_buf_left >= sizeof(*tlv_rxba)) {
+		tlv_type = le16_to_cpu(tlv_rxba->header.type);
+		tlv_len  = le16_to_cpu(tlv_rxba->header.len);
+		if (tlv_type != TLV_TYPE_RXBA_SYNC) {
+			mwifiex_dbg(priv->adapter, ERROR,
+				    "Wrong TLV id=0x%x\n", tlv_type);
+			return;
+		}
+
+		tlv_seq_num = le16_to_cpu(tlv_rxba->seq_num);
+		tlv_bitmap_len = le16_to_cpu(tlv_rxba->bitmap_len);
+		mwifiex_dbg(priv->adapter, INFO,
+			    "%pM tid=%d seq_num=%d bitmap_len=%d\n",
+			    tlv_rxba->mac, tlv_rxba->tid, tlv_seq_num,
+			    tlv_bitmap_len);
+
+		rx_reor_tbl_ptr =
+			mwifiex_11n_get_rx_reorder_tbl(priv, tlv_rxba->tid,
+						       tlv_rxba->mac);
+		if (!rx_reor_tbl_ptr) {
+			mwifiex_dbg(priv->adapter, ERROR,
+				    "Can not find rx_reorder_tbl!");
+			return;
+		}
+
+		for (i = 0; i < tlv_bitmap_len; i++) {
+			for (j = 0 ; j < 8; j++) {
+				if (tlv_rxba->bitmap[i] & (1 << j)) {
+					seq_num = (MAX_TID_VALUE - 1) &
+						(tlv_seq_num + i * 8 + j);
+
+					mwifiex_dbg(priv->adapter, ERROR,
+						    "drop packet,seq=%d\n",
+						    seq_num);
+
+					ret = mwifiex_11n_rx_reorder_pkt
+					(priv, seq_num, tlv_rxba->tid,
+					 tlv_rxba->mac, 0, NULL);
+
+					if (ret)
+						mwifiex_dbg(priv->adapter,
+							    ERROR,
+							    "Fail to drop packet");
+				}
+			}
+		}
+
+		tlv_buf_left -= (sizeof(*tlv_rxba) + tlv_len);
+		tmp = (u8 *)tlv_rxba + tlv_len + sizeof(*tlv_rxba);
+		tlv_rxba = (struct mwifiex_ie_types_rxba_sync *)tmp;
+	}
+}