Symbol: GEM_NRXDESC_MASK
sys/dev/ic/gemvar.h
63
#define GEM_PREVRX(x) ((x - 1) & GEM_NRXDESC_MASK)
sys/dev/ic/gemvar.h
64
#define GEM_NEXTRX(x) ((x + 1) & GEM_NRXDESC_MASK)