RTRS_MSG_NEED_INVAL_F
msg->flags = cpu_to_le16(RTRS_MSG_NEED_INVAL_F);
req->mr->need_inval = !!RTRS_MSG_NEED_INVAL_F;
need_inval = le16_to_cpu(id->rd_msg->flags) & RTRS_MSG_NEED_INVAL_F;
RTRS_MSG_NEED_INVAL_F;