1456 static int nvme_cmb_qdepth(struct nvme_dev *dev, int nr_io_queues,  in nvme_cmb_qdepth()  argument
1463 	if (q_size_aligned * nr_io_queues > dev->cmb_size) {  in nvme_cmb_qdepth()
1464 		u64 mem_per_q = div_u64(dev->cmb_size, nr_io_queues);  in nvme_cmb_qdepth()
1685 static unsigned long db_bar_size(struct nvme_dev *dev, unsigned nr_io_queues)  in db_bar_size()  argument
1687 	return NVME_REG_DBS + ((nr_io_queues + 1) * 8 * dev->db_stride);  in db_bar_size()
2110 static int nvme_setup_irqs(struct nvme_dev *dev, unsigned int nr_io_queues)  in nvme_setup_irqs()  argument
2124 	poll_queues = min(dev->nr_poll_queues, nr_io_queues - 1);  in nvme_setup_irqs()
2141 		irq_queues += (nr_io_queues - poll_queues);  in nvme_setup_irqs()
2161 	unsigned int nr_io_queues;  in nvme_setup_io_queues()  local
2177 		nr_io_queues = 1;  in nvme_setup_io_queues()
2179 		nr_io_queues = min(nvme_max_io_queues(dev),  in nvme_setup_io_queues()
2182 	result = nvme_set_queue_count(&dev->ctrl, &nr_io_queues);  in nvme_setup_io_queues()
2186 	if (nr_io_queues == 0)  in nvme_setup_io_queues()
2192 		result = nvme_cmb_qdepth(dev, nr_io_queues,  in nvme_setup_io_queues()
2201 		size = db_bar_size(dev, nr_io_queues);  in nvme_setup_io_queues()
2205 		if (!--nr_io_queues)  in nvme_setup_io_queues()
2220 	result = nvme_setup_irqs(dev, nr_io_queues);  in nvme_setup_io_queues()
2244 		nr_io_queues = dev->online_queues - 1;  in nvme_setup_io_queues()