Initial s390-tools-2.0.0 import

This commit is based on the s390-tools-1.39.0 version.

Changes on top of s390-tools-1.39.0:

 - Add MIT license to all source files
 - Add LICENSE file
 - Transform REAMDE to README.md (markdown)
 - Add AUTHORS.md file
 - Add CONTRIBUTING.md file
 - Move changelog from README to CHANGELOG.md file

Reviewed-by: Stefan Haberland <sth@linux.vnet.ibm.com>
Signed-off-by: Michael Holzheu <holzheu@linux.vnet.ibm.com>

zdev/include/nic.h

@@ -0,0 +1,42 @@
+/*
+ * zdev - Modify and display the persistent configuration of devices
+ *
+ * Copyright IBM Corp. 2016, 2017
+ *
+ * s390-tools is free software; you can redistribute it and/or modify
+ * it under the terms of the MIT license. See LICENSE for details.
+ */
+
+#ifndef NIC_H
+#define NIC_H
+
+#include <stdbool.h>
+
+enum nic_type {
+	nic_qdio,
+	nic_hipers,
+	nic_iedn,
+	nic_inmn,
+};
+
+enum nic_target {
+	nic_vswitch,
+	nic_lan,
+};
+
+#define NIC_OWNER_LEN	9
+#define NIC_NAME_LEN	9
+
+struct nic_data {
+	enum nic_type type;
+	enum nic_target target;
+	char owner[NIC_OWNER_LEN];
+	char name[NIC_NAME_LEN];
+};
+
+bool nic_data_get(const char *, struct nic_data *);
+void nic_data_print(struct nic_data *, int);
+bool nic_vswitch_get_layer2(const char *, int *);
+bool nic_lan_get_layer2(const char *, const char *, int *);
+
+#endif /* NIC_H */