dmfe_ring_put32
dmfe_ring_put32(descp, index, BUFFER1, paddr);
dmfe_ring_put32(descp, index, DESC1, desc1);
dmfe_ring_put32(descp, index, DESC0, TX_OWN);
dmfe_ring_put32(descp, i, RD_NEXT, pnext);
dmfe_ring_put32(descp, i, BUFFER1, pbuff);
dmfe_ring_put32(descp, i, DESC1, desc1);
dmfe_ring_put32(descp, i, DESC0, RX_OWN);
dmfe_ring_put32(descp, --i, RD_NEXT, pstart);
dmfe_ring_put32(descp, i, TD_NEXT, pnext);
dmfe_ring_put32(descp, i, BUFFER1, pbuff);
dmfe_ring_put32(descp, i, DESC1, desc1);
dmfe_ring_put32(descp, i, DESC0, 0);
dmfe_ring_put32(descp, --i, TD_NEXT, pstart);
dmfe_ring_put32(descp, index, DESC0, RX_OWN);