865         struct et_txbuf_data *tbd;  in et_dma_alloc()  local
1022 	tbd = &sc->sc_tx_data;  in et_dma_alloc()
1025 		    &tbd->tbd_buf[i].tb_dmap);  in et_dma_alloc()
1044         struct et_txbuf_data *tbd;  in et_dma_free()  local
1084 	tbd = &sc->sc_tx_data;  in et_dma_free()
1086 		if (tbd->tbd_buf[i].tb_dmap) {  in et_dma_free()
1088 			    tbd->tbd_buf[i].tb_dmap);  in et_dma_free()
1089 			tbd->tbd_buf[i].tb_dmap = NULL;  in et_dma_free()
1373 	struct et_txbuf_data *tbd;  in et_start_locked()  local
1394 	tbd = &sc->sc_tx_data;  in et_start_locked()
1395 	if (tbd->tbd_used > (ET_TX_NDESC * 2) / 3)  in et_start_locked()
1399 		if (tbd->tbd_used + ET_NSEG_SPARE >= ET_TX_NDESC) {  in et_start_locked()
1414 			if (tbd->tbd_used > 0)  in et_start_locked()
1495 	struct et_txbuf_data *tbd;  in et_free_tx_ring()  local
1499 	tbd = &sc->sc_tx_data;  in et_free_tx_ring()
1501 		tb = &tbd->tbd_buf[i];  in et_free_tx_ring()
1673 	struct et_txbuf_data *tbd;  in et_init_tx_ring()  local
1681 	tbd = &sc->sc_tx_data;  in et_init_tx_ring()
1682 	tbd->tbd_start_index = 0;  in et_init_tx_ring()
1683 	tbd->tbd_start_wrap = 0;  in et_init_tx_ring()
1684 	tbd->tbd_used = 0;  in et_init_tx_ring()
2145 	struct et_txbuf_data *tbd;  in et_encap()  local
2155 	tbd = &sc->sc_tx_data;  in et_encap()
2157 	map = tbd->tbd_buf[first_idx].tb_dmap;  in et_encap()
2180 	if (tbd->tbd_used + nsegs > ET_TX_NDESC - 1) {  in et_encap()
2228 	tbd->tbd_buf[first_idx].tb_dmap = tbd->tbd_buf[last_idx].tb_dmap;  in et_encap()
2229 	tbd->tbd_buf[last_idx].tb_dmap = map;  in et_encap()
2230 	tbd->tbd_buf[last_idx].tb_mbuf = m;  in et_encap()
2232 	tbd->tbd_used += nsegs;  in et_encap()
2233 	MPASS(tbd->tbd_used <= ET_TX_NDESC);  in et_encap()
2242 	struct et_txbuf_data *tbd;  in et_txeof()  local
2252 	tbd = &sc->sc_tx_data;  in et_txeof()
2257 	if (tbd->tbd_used == 0)  in et_txeof()
2267 	while (tbd->tbd_start_index != end || tbd->tbd_start_wrap != wrap) {  in et_txeof()
2268 		MPASS(tbd->tbd_start_index < ET_TX_NDESC);  in et_txeof()
2269 		tb = &tbd->tbd_buf[tbd->tbd_start_index];  in et_txeof()
2278 		if (++tbd->tbd_start_index == ET_TX_NDESC) {  in et_txeof()
2279 			tbd->tbd_start_index = 0;  in et_txeof()
2280 			tbd->tbd_start_wrap ^= 1;  in et_txeof()
2283 		MPASS(tbd->tbd_used > 0);  in et_txeof()
2284 		tbd->tbd_used--;  in et_txeof()
2287 	if (tbd->tbd_used == 0)  in et_txeof()
2289 	if (tbd->tbd_used + ET_NSEG_SPARE < ET_TX_NDESC)  in et_txeof()