Symbol: TULIP_NTXDESC_MASK
sys/dev/ic/tulip.c
2756
txd = &sc->sc_txdescs[nexttx & TULIP_NTXDESC_MASK /* XXXGCC12 */];
sys/dev/ic/tulipvar.h
57
#define TULIP_NEXTTX(x) ((x + 1) & TULIP_NTXDESC_MASK)