@@ -1619,6 +1619,22 @@ static void hns_roce_function_clear(struct hns_roce_dev *hr_dev)
 	}
 }
 
+static int hns_roce_clear_extdb_list_info(struct hns_roce_dev *hr_dev)
+{
+	struct hns_roce_cmq_desc desc;
+	int ret;
+
+	hns_roce_cmq_setup_basic_desc(&desc, HNS_ROCE_OPC_CLEAR_EXTDB_LIST_INFO,
+				      false);
+	ret = hns_roce_cmq_send(hr_dev, &desc, 1);
+	if (ret)
+		ibdev_err(&hr_dev->ib_dev,
+			  "failed to clear extended doorbell info, ret = %d.\n",
+			  ret);
+
+	return ret;
+}
+
 static int hns_roce_query_fw_ver(struct hns_roce_dev *hr_dev)
 {
 	struct hns_roce_query_fw_info *resp;

@@ -2732,6 +2748,11 @@ static int hns_roce_v2_init(struct hns_roce_dev *hr_dev)
 	struct hns_roce_v2_priv *priv = hr_dev->priv;
 	int ret;
 
+	/* The hns ROCEE requires the extdb info to be cleared before using */
+	ret = hns_roce_clear_extdb_list_info(hr_dev);
+	if (ret)
+		return ret;
+
 	ret = get_hem_table(hr_dev);
 	if (ret)
 		return ret;

@@ -248,6 +248,7 @@ enum hns_roce_opcode_type {
 	HNS_ROCE_OPC_CLR_SCCC				= 0x8509,
 	HNS_ROCE_OPC_QUERY_SCCC				= 0x850a,
 	HNS_ROCE_OPC_RESET_SCCC				= 0x850b,
+	HNS_ROCE_OPC_CLEAR_EXTDB_LIST_INFO		= 0x850d,
 	HNS_ROCE_OPC_QUERY_VF_RES			= 0x850e,
 	HNS_ROCE_OPC_CFG_GMV_TBL			= 0x850f,
 	HNS_ROCE_OPC_CFG_GMV_BT				= 0x8510,