int hns_roce_mtr_find(struct hns_roce_dev *hr_dev, struct hns_roce_mtr *mtr,
		      u32 offset, u64 *mtt_buf, int mtt_max, u64 *base_addr)
int hns_roce_mtr_find(struct hns_roce_dev *hr_dev, struct hns_roce_mtr *mtr,
		      u32 offset, u64 *mtt_buf, int mtt_max)