467 struct ibv_wc {  struct
469 	enum ibv_wc_status	status;  argument
470 	enum ibv_wc_opcode	opcode;  argument
471 	uint32_t		vendor_err;
472 	uint32_t		byte_len;
476 	union {
480 	uint32_t		qp_num;
481 	uint32_t		src_qp;
482 	int			wc_flags;
483 	uint16_t		pkey_index;
484 	uint16_t		slid;
485 	uint8_t			sl;
486 	uint8_t			dlid_path_bits;