NVME_CTRL_PAGE_SHIFT
if (NVME_CTRL_PAGE_SHIFT < dev_page_min) {
1 << dev_page_min, 1 << NVME_CTRL_PAGE_SHIFT);
ctrl->ctrl_config |= (NVME_CTRL_PAGE_SHIFT - 12) << NVME_CC_MPS_SHIFT;
#define NVME_CTRL_PAGE_SIZE (1 << NVME_CTRL_PAGE_SHIFT)
u32 host_mem_size = dev->host_mem_size >> NVME_CTRL_PAGE_SHIFT;