vfio: avoid enabling while the module is not loaded

[dpdk.git] / lib / librte_eal / common / eal_private.h

diff --git a/lib/librte_eal/common/eal_private.h b/lib/librte_eal/common/eal_private.h
index 232fcec..159cd66 100644 (file)
--- a/lib/librte_eal/common/eal_private.h
+++ b/lib/librte_eal/common/eal_private.h
@@ -203,4 +203,18 @@ int rte_eal_alarm_init(void);
  */
 int rte_eal_dev_init(void);
 
+/**
+ * Function is to check if the kernel module(like, vfio, vfio_iommu_type1,
+ * etc.) loaded.
+ *
+ * @param module_name
+ *     The module's name which need to be checked
+ *
+ * @return
+ *     -1 means some error happens(NULL pointer or open failure)
+ *     0  means the module not loaded
+ *     1  means the module loaded
+ */
+int rte_eal_check_module(const char *module_name);
+
 #endif /* _EAL_PRIVATE_H_ */