mem_per_q 1435 drivers/nvme/host/pci.c u64 mem_per_q = div_u64(dev->cmb_size, nr_io_queues); mem_per_q 1436 drivers/nvme/host/pci.c mem_per_q = round_down(mem_per_q, dev->ctrl.page_size); mem_per_q 1437 drivers/nvme/host/pci.c q_depth = div_u64(mem_per_q, entry_size);