IX_MAX_SCATTER
bus_dma_segment_t segs[IX_MAX_SCATTER];
if (maxsegs > IX_MAX_SCATTER)
maxsegs = IX_MAX_SCATTER;
IX_MAX_SCATTER, /* nsegments */
if (txr->tx_avail > IX_MAX_SCATTER + IX_TX_RESERVED) {
if (nsegs >= txr->tx_ndesc - IX_MAX_SCATTER - IX_TX_RESERVED) {
if (txr->tx_avail <= IX_MAX_SCATTER + IX_TX_RESERVED) {