net: microchip: sparx5: Adding KUNIT test for the VCAP API

This provides a KUNIT test suite for the VCAP APIs encoding functionality.

The test can be run by adding these settings in a .kunitconfig file

CONFIG_KUNIT=y
CONFIG_NET=y
CONFIG_VCAP_KUNIT_TEST=y
Signed-off-by: Steen Hegelund <steen.hegelund@microchip.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

drivers/net/ethernet/microchip/vcap/Kconfig

@@ -36,4 +36,17 @@ config VCAP
 	  characteristics. Look in the datasheet for the VCAP specifications for the
 	  specific switchcore.
 
+config VCAP_KUNIT_TEST
+	bool "KUnit test for VCAP library" if !KUNIT_ALL_TESTS
+	depends on KUNIT
+	depends on KUNIT=y && VCAP=y && y
+	default KUNIT_ALL_TESTS
+	help
+	  This builds unit tests for the VCAP library.
+
+	  For more information on KUnit and unit tests in general, please refer
+	  to the KUnit documentation in Documentation/dev-tools/kunit/.
+
+	  If unsure, say N.
+
 endif # NET_VENDOR_MICROCHIP

drivers/net/ethernet/microchip/vcap/vcap_api.c

@@ -1178,3 +1178,7 @@ void vcap_set_tc_exterr(struct flow_cls_offload *fco, struct vcap_rule *vrule)
 	}
 }
 EXPORT_SYMBOL_GPL(vcap_set_tc_exterr);
+
+#ifdef CONFIG_VCAP_KUNIT_TEST
+#include "vcap_api_kunit.c"
+#endif

drivers/net/ethernet/microchip/vcap/vcap_api.h

@@ -11,6 +11,9 @@
 #include <linux/netdevice.h>
 
 /* Use the generated API model */
+#ifdef CONFIG_VCAP_KUNIT_TEST
+#include "vcap_ag_api_kunit.h"
+#endif
 #include "vcap_ag_api.h"
 
 #define VCAP_CID_LOOKUP_SIZE          100000 /* Chains in a lookup */