DATA_UNIT_SIZE
u32 val = ilog2(DATA_UNIT_SIZE);
hci_writel(ufs, ilog2(DATA_UNIT_SIZE), HCI_RXPRDT_ENTRY_SIZE);
DATA_UNIT_SIZE;
if (prd->base.size != cpu_to_le32(DATA_UNIT_SIZE - 1)) {
hba->host->dma_alignment = DATA_UNIT_SIZE - 1;
hba->host->max_segment_size = DATA_UNIT_SIZE;