HOST_DMA_A
if (dma_desc->status & HOST_DMA_A) {
dma_desc->status |= HOST_DMA_A;
qh->desc_list[n_desc - 1].status |= HOST_DMA_A;
HOST_DMA_IOC | HOST_DMA_EOL | HOST_DMA_A;
qh->desc_list[0].status |= HOST_DMA_A;