CM_REQ_TRANSPORT_SERVICE_TYPE
u8 transport_type = IBA_GET(CM_REQ_TRANSPORT_SERVICE_TYPE, req_msg);
IBA_SET(CM_REQ_TRANSPORT_SERVICE_TYPE, req_msg, 1);
IBA_SET(CM_REQ_TRANSPORT_SERVICE_TYPE, req_msg, 3);
IBA_SET(CM_REQ_TRANSPORT_SERVICE_TYPE, req_msg, 0);