TULIP_DFLAG_TxLASTSEG
if (d_flag & TULIP_DFLAG_TxLASTSEG) {
eop->di_desc->d_flag |= TULIP_DFLAG_TxLASTSEG|TULIP_DFLAG_TxWANTINTR;
nextout->d_flag |= TULIP_DFLAG_TxFIRSTSEG|TULIP_DFLAG_TxLASTSEG