SCMI_HDR_MESSAGE_TYPE_S
((((_h) & SCMI_HDR_MESSAGE_TYPE_M) >> SCMI_HDR_MESSAGE_TYPE_S) == (_t))
req->msg.hdr |= SCMI_MSG_TYPE_CMD << SCMI_HDR_MESSAGE_TYPE_S;
(SCMI_HDR_MESSAGE_TYPE_BF << SCMI_HDR_MESSAGE_TYPE_S)