MVXPE_PTXDQA
MVXPE_WRITE(sc, MVXPE_PTXDQA(q), MVXPE_TX_RING_MEM_PA(sc, q));
KASSERT(MVXPE_READ(sc, MVXPE_PTXDQA(q)) == MVXPE_TX_RING_MEM_PA(sc, q));
"PTXDQA: queue %d, %#x\n", q, MVXPE_READ(sc, MVXPE_PTXDQA(q)));