dev/bm/if_bm.c

737 		prev_stop = sc->next_txdma_slot - 1;
774 	if (sc->next_txdma_slot >= sc->first_used_txdma_slot)
775 		nsegs = BM_MAX_DMA_COMMANDS - 2 - sc->next_txdma_slot +
778 		nsegs = sc->first_used_txdma_slot - sc->next_txdma_slot;
821 	txs->txs_firstdesc = sc->next_txdma_slot;
825 		if (sc->next_txdma_slot == (BM_MAX_DMA_COMMANDS - 1))
831 			txs->txs_lastdesc = sc->next_txdma_slot;
833 		dbdma_insert_command(sc->sc_txdma, sc->next_txdma_slot++,
840 			sc->next_txdma_slot = 0;
847 	if (sc->next_txdma_slot == (BM_MAX_DMA_COMMANDS - 1)) {
848 		dbdma_insert_branch(sc->sc_txdma, sc->next_txdma_slot, 0);
849 		sc->next_txdma_slot = 0;
852 	txs->txs_stopdesc = sc->next_txdma_slot;
853 	dbdma_insert_stop(sc->sc_txdma, sc->next_txdma_slot++);
1082 	sc->next_txdma_slot = 1;