+
+static int
+bus_can_parse(const struct rte_bus *bus, const void *_name)
+{
+ const char *name = _name;
+
+ return !(bus->parse && bus->parse(name, NULL) == 0);
+}
+
+struct rte_bus *
+rte_bus_find_by_device_name(const char *str)
+{
+ char name[RTE_DEV_NAME_MAX_LEN];
+ char *c;
+
+ snprintf(name, sizeof(name), "%s", str);
+ c = strchr(name, ',');
+ if (c != NULL)
+ c[0] = '\0';
+ return rte_bus_find(NULL, bus_can_parse, name);
+}
+
+
+/*
+ * Get iommu class of devices on the bus.
+ */
+enum rte_iova_mode
+rte_bus_get_iommu_class(void)
+{
+ int mode = RTE_IOVA_DC;
+ struct rte_bus *bus;
+
+ TAILQ_FOREACH(bus, &rte_bus_list, next) {
+
+ if (bus->get_iommu_class)
+ mode |= bus->get_iommu_class();
+ }
+
+ if (mode != RTE_IOVA_VA) {
+ /* Use default IOVA mode */
+ mode = RTE_IOVA_PA;
+ }
+ return mode;
+}