GEM_NTXSEGS
bus_dma_segment_t txsegs[GEM_NTXSEGS];
m = m_collapse(*m_head, M_NOWAIT, GEM_NTXSEGS);
KASSERT(nsegs <= GEM_NTXSEGS,
if (++sc->sc_txwin > GEM_NTXSEGS * 2 / 3) {
MCLBYTES * GEM_NTXSEGS, GEM_NTXSEGS, MCLBYTES,
#define GEM_NTXDESC (GEM_TXQUEUELEN * GEM_NTXSEGS)