EDMA_REQQBAH
MVSATA_EDMA_WRITE_4(mvport, EDMA_REQQBAH, (crqb_base_addr >> 16) >> 16);
MVSATA_EDMA_WRITE_4(mvport, EDMA_REQQBAH, (crqb_base_addr >> 16) >> 16);
MVSATA_EDMA_WRITE_4(mvport, EDMA_REQQBAH, 0);
MVSATA_EDMA_WRITE_4(mvport, EDMA_REQQBAH, 0);