EM_ROUNDUP
fifo_pkt_len = EM_ROUNDUP(len + EM_FIFO_HDR, EM_FIFO_HDR);
int fifo_pkt_len = EM_ROUNDUP(len + EM_FIFO_HDR, EM_FIFO_HDR);
EM_ROUNDUP(sc->hw.max_frame_size, 1024);