[RFC 03/13] test: add test for hotplug and secondary process operations

[Stephen Hemminger <stephen@networkplumber.org>]

Use null device to exercise ethdev start/stop in secondary process.

Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>
---
 app/test/test_mp_secondary.c | 51 +++++++++++++++++++++++++++++++++---
 1 file changed, 48 insertions(+), 3 deletions(-)

diff --git a/app/test/test_mp_secondary.c b/app/test/test_mp_secondary.c
index f3694530a8..09611cc5c2 100644
--- a/app/test/test_mp_secondary.c
+++ b/app/test/test_mp_secondary.c
@@ -15,6 +15,9 @@
 #include <string.h>
 #include <unistd.h>
 
+#include <rte_ethdev.h>
+#include <rte_bus_vdev.h>
+
 #ifdef RTE_EXEC_ENV_WINDOWS
 int
 test_mp_secondary(void)
@@ -204,6 +207,44 @@ run_object_creation_tests(void)
 	return 0;
 }
 
+static int
+run_ethdev_tests(void)
+{
+	char vdev_name[] = "net_null";
+	struct rte_eth_conf dev_conf = { 0 };
+	uint16_t port;
+	int ret;
+
+	printf("### Testing hotplug and ethdev start/stop\n");
+
+	/* use hotplug to make a null vdev */
+	ret = rte_eal_hotplug_add("vdev", vdev_name, "");
+	TEST_ASSERT(ret == 0, "Hotplug add of '%s' failed", vdev_name);
+
+	printf("# Checked hotlug_add OK\n");
+
+	ret = rte_eth_dev_get_port_by_name(vdev_name, &port);
+	TEST_ASSERT(ret == 0, "Lookup vdev '%s' failed", vdev_name);
+
+	ret = rte_eth_dev_configure(port, 1, 1, &dev_conf);
+	TEST_ASSERT(ret == 0, "Configure port %u failed", port);
+
+	ret = rte_eth_dev_start(port);
+	TEST_ASSERT(ret == 0, "Start port %u failed", port);
+
+	printf("# Checked rte_eth_dev_start\n");
+
+	ret = rte_eth_dev_stop(port);
+	TEST_ASSERT(ret == 0, "Stop port %u failed", port);
+
+	printf("# Checked rte_eth_dev_stop\n");
+
+	rte_eal_hotplug_remove("vdev", vdev_name);
+
+	printf("# Checked hotlug_remove OK\n");
+	return 0;
+}
+
 /* if called in a primary process, just spawns off a secondary process to
  * run validation tests - which brings us right back here again...
  * if called in a secondary process, this runs a series of API tests to check
@@ -212,15 +253,19 @@ run_object_creation_tests(void)
 int
 test_mp_secondary(void)
 {
-	if (rte_eal_process_type() == RTE_PROC_PRIMARY) {
+	int ret;
+
+	if (rte_eal_process_type() == RTE_PROC_PRIMARY)
 		return run_secondary_instances();
-	}
 
 	printf("IN SECONDARY PROCESS\n");
+	ret = run_ethdev_tests();
+	if (ret != 0)
+		return ret;
 
 	return run_object_creation_tests();
 }
 
 #endif /* !RTE_EXEC_ENV_WINDOWS */
 
-REGISTER_FAST_TEST(multiprocess_autotest, false, false, test_mp_secondary);
+REGISTER_FAST_TEST(multiprocess_autotest, true, true, test_mp_secondary);
-- 
2.47.2