PCIIDE_BMICX_RWCON_WRITE_TO_MEMORY
ata_pciide_dma_start(ata_ctlp, PCIIDE_BMICX_RWCON_WRITE_TO_MEMORY);
ASSERT((direction == PCIIDE_BMICX_RWCON_WRITE_TO_MEMORY) ||
rd_wr = PCIIDE_BMICX_RWCON_WRITE_TO_MEMORY;