DBUF_PA
pa = (uint32_t)(DBUF_PA(dev->bmbx) >> 34);
pa = (uint32_t)(DBUF_PA(dev->bmbx) >> 4) & 0x3fffffff;
mbx.payload.u0.u1.sgl[0].pa_lo = ADDR_LO(DBUF_PA(dev->stats_dbuf));
mbx.payload.u0.u1.sgl[0].pa_hi = ADDR_HI(DBUF_PA(dev->stats_dbuf));
paddr = DBUF_PA(dbuf);
(uint64_t)(((type *)DBUF_PA(ring->dbuf)) + ring->cidx)
(uint64_t)(((type *)DBUF_PA(ring->dbuf)) + ring->pidx)