CGEM_TXDESC_USED
sc->txring[i].ctl = CGEM_TXDESC_USED;
tx_desc->ctl = CGEM_TXDESC_USED | CGEM_TXDESC_WRAP;
sc->txring[i].ctl = CGEM_TXDESC_USED;
CGEM_TXDESC_USED) != 0) {
ctl | CGEM_TXDESC_USED;