ib_cm_req_event_param
struct ib_cm_req_event_param *param;
const struct ib_cm_req_event_param *req_param =
struct ib_cm_req_event_param *req_data,
struct ib_cm_req_event_param *kreq)
struct ib_qp *qp, struct ib_cm_req_event_param *req,
struct ib_cm_req_event_param req_rcvd;