+
+static int
+rte_eal_memdevice_init(void)
+{
+ struct rte_config *config;
+
+ if (rte_eal_process_type() == RTE_PROC_SECONDARY)
+ return 0;
+
+ config = rte_eal_get_configuration();
+ config->mem_config->nchannel = internal_config.force_nchannel;
+ config->mem_config->nrank = internal_config.force_nrank;
+
+ return 0;
+}
+
+/* Lock page in physical memory and prevent from swapping. */
+int
+rte_mem_lock_page(const void *virt)
+{
+ unsigned long virtual = (unsigned long)virt;
+ int page_size = getpagesize();
+ unsigned long aligned = (virtual & ~(page_size - 1));
+ return mlock((void *)aligned, page_size);
+}
+
+/* init memory subsystem */
+int
+rte_eal_memory_init(void)
+{
+ RTE_LOG(DEBUG, EAL, "Setting up physically contiguous memory...\n");
+
+ const int retval = rte_eal_process_type() == RTE_PROC_PRIMARY ?
+ rte_eal_hugepage_init() :
+ rte_eal_hugepage_attach();
+ if (retval < 0)
+ return -1;
+
+ if (internal_config.no_shconf == 0 && rte_eal_memdevice_init() < 0)
+ return -1;
+
+ return 0;
+}