142 	size_t dmacount;	/* resulting length of DMA i/o */  member
666 		bp->b_resid -= sc->dmacount;  in wtstrategy()
746 	sc->dmacount += sc->bsize;		/* increment counter */  in wtintr()
752 	    (sc->dmatotal - sc->dmacount) < sc->bsize) {  in wtintr()
756 		memcpy(sc->dmavaddr, sc->buf, sc->dmatotal - sc->dmacount);  in wtintr()
774 	if (sc->dmacount < sc->dmatotal) {  in wtintr()
778 		WTDBPRINT(("continue i/o, %d\n", sc->dmacount));  in wtintr()
781 	if (sc->dmacount > sc->dmatotal)	/* short last block */  in wtintr()
782 		sc->dmacount = sc->dmatotal;  in wtintr()
785 	WTDBPRINT(("i/o finished, %d\n", sc->dmacount));  in wtintr()
948 	    (sc->dmatotal - sc->dmacount) < sc->bsize) {  in wtdma()
973 	sc->dmacount = 0;  in wtstart()