BGE_NSEG_NEW
txmaxsegsz = MCLBYTES * BGE_NSEG_NEW;
txmaxsegsz, BGE_NSEG_NEW, txsegsz, 0, NULL, NULL,
bus_dma_segment_t segs[BGE_NSEG_NEW];
m = m_collapse(m, M_NOWAIT, BGE_NSEG_NEW);