+const struct rte_memzone *
+rte_eth_dma_zone_reserve(const struct rte_eth_dev *dev, const char *ring_name,
+ uint16_t queue_id, size_t size, unsigned align,
+ int socket_id)
+{
+ char z_name[RTE_MEMZONE_NAMESIZE];
+ const struct rte_memzone *mz;
+
+ snprintf(z_name, sizeof(z_name), "%s_%s_%d_%d",
+ dev->driver->pci_drv.name, ring_name,
+ dev->data->port_id, queue_id);
+
+ mz = rte_memzone_lookup(z_name);
+ if (mz)
+ return mz;
+
+ if (is_xen_dom0_supported())
+ return rte_memzone_reserve_bounded(z_name, size, socket_id,
+ 0, align, RTE_PGSIZE_2M);
+ else
+ return rte_memzone_reserve_aligned(z_name, size, socket_id,
+ 0, align);
+}
+