selftests: xsx: Introduce test name in test spec

Introduce the test name in the test specification. This so we can set
the name locally in the test function and simplify the logic for
printing out test results.
Signed-off-by: Magnus Karlsson <magnus.karlsson@intel.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Acked-by: Maciej Fijalkowski <maciej.fijalkowski@intel.com>
Link: https://lore.kernel.org/bpf/20210907071928.9750-8-magnus.karlsson@gmail.com

tools/testing/selftests/bpf/xdpxceiver.c

@@ -112,13 +112,9 @@ static void __exit_with_error(int error, const char *file, const char *func, int
 
 #define exit_with_error(error) __exit_with_error(error, __FILE__, __func__, __LINE__)
 
-#define print_ksft_result(void)\
-	(ksft_test_result_pass("PASS: %s %s %s%s%s%s\n", configured_mode ? "DRV" : "SKB",\
-			       test_type == TEST_TYPE_POLL ? "POLL" : "NOPOLL",\
-			       test_type == TEST_TYPE_TEARDOWN ? "Socket Teardown" : "",\
-			       test_type == TEST_TYPE_BIDI ? "Bi-directional Sockets" : "",\
-			       test_type == TEST_TYPE_STATS ? "Stats" : "",\
-			       test_type == TEST_TYPE_BPF_RES ? "BPF RES" : ""))
+#define print_ksft_result(test)\
+	(ksft_test_result_pass("PASS: %s %s\n", configured_mode ? "DRV" : "SKB", \
+			       (test)->name))
 
 static void memset32_htonl(void *dest, u32 val, u32 size)
 {
@@ -428,6 +424,11 @@ static void test_spec_reset(struct test_spec *test)
 	__test_spec_init(test, test->ifobj_tx, test->ifobj_rx);
 }
 
+static void test_spec_set_name(struct test_spec *test, const char *name)
+{
+	strncpy(test->name, name, MAX_TEST_NAME_SIZE);
+}
+
 static struct pkt *pkt_stream_get_pkt(struct pkt_stream *pkt_stream, u32 pkt_nb)
 {
 	if (pkt_nb >= pkt_stream->nb_pkts)
@@ -880,8 +881,6 @@ static void testapp_validate_traffic(struct test_spec *test)
 {
 	struct ifobject *ifobj_tx = test->ifobj_tx;
 	struct ifobject *ifobj_rx = test->ifobj_rx;
-	bool bidi = test_type == TEST_TYPE_BIDI;
-	bool bpf = test_type == TEST_TYPE_BPF_RES;
 	struct pkt_stream *pkt_stream;
 
 	if (pthread_barrier_init(&barr, NULL, 2))
@@ -907,21 +906,17 @@ static void testapp_validate_traffic(struct test_spec *test)
 
 	pthread_join(t1, NULL);
 	pthread_join(t0, NULL);
-
-	if (!(test_type == TEST_TYPE_TEARDOWN) && !bidi && !bpf && !(test_type == TEST_TYPE_STATS))
-		print_ksft_result();
 }
 
 static void testapp_teardown(struct test_spec *test)
 {
 	int i;
 
+	test_spec_set_name(test, "TEARDOWN");
 	for (i = 0; i < MAX_TEARDOWN_ITER; i++) {
 		testapp_validate_traffic(test);
 		test_spec_reset(test);
 	}
-
-	print_ksft_result();
 }
 
 static void swap_directions(struct ifobject **ifobj1, struct ifobject **ifobj2)
@@ -942,6 +937,7 @@ static void swap_directions(struct ifobject **ifobj1, struct ifobject **ifobj2)
 
 static void testapp_bidi(struct test_spec *test)
 {
+	test_spec_set_name(test, "BIDIRECTIONAL");
 	for (int i = 0; i < MAX_BIDI_ITER; i++) {
 		print_verbose("Creating socket\n");
 		testapp_validate_traffic(test);
@@ -953,8 +949,6 @@ static void testapp_bidi(struct test_spec *test)
 	}
 
 	swap_directions(&test->ifobj_rx, &test->ifobj_tx);
-
-	print_ksft_result();
 }
 
 static void swap_xsk_resources(struct ifobject *ifobj_tx, struct ifobject *ifobj_rx)
@@ -973,6 +967,7 @@ static void testapp_bpf_res(struct test_spec *test)
 {
 	int i;
 
+	test_spec_set_name(test, "BPF_RES");
 	for (i = 0; i < MAX_BPF_ITER; i++) {
 		print_verbose("Creating socket\n");
 		testapp_validate_traffic(test);
@@ -980,8 +975,6 @@ static void testapp_bpf_res(struct test_spec *test)
 			swap_xsk_resources(test->ifobj_tx, test->ifobj_rx);
 		second_step = true;
 	}
-
-	print_ksft_result();
 }
 
 static void testapp_stats(struct test_spec *test)
@@ -992,21 +985,28 @@ static void testapp_stats(struct test_spec *test)
 
 		switch (stat_test_type) {
 		case STAT_TEST_RX_DROPPED:
+			test_spec_set_name(test, "STAT_RX_DROPPED");
 			test->ifobj_rx->umem->frame_headroom = test->ifobj_rx->umem->frame_size -
 				XDP_PACKET_HEADROOM - 1;
 			break;
 		case STAT_TEST_RX_FULL:
+			test_spec_set_name(test, "STAT_RX_FULL");
 			test->ifobj_rx->xsk->rxqsize = RX_FULL_RXQSIZE;
 			break;
 		case STAT_TEST_TX_INVALID:
+			test_spec_set_name(test, "STAT_TX_INVALID");
 			continue;
+		case STAT_TEST_RX_FILL_EMPTY:
+			test_spec_set_name(test, "STAT_RX_FILL_EMPTY");
+			break;
 		default:
 			break;
 		}
 		testapp_validate_traffic(test);
 	}
 
-	print_ksft_result();
+	/* To only see the whole stat set being completed unless an individual test fails. */
+	test_spec_set_name(test, "STATS");
 }
 
 static void init_iface(struct ifobject *ifobj, const char *dst_mac, const char *src_mac,
@@ -1066,10 +1066,19 @@ static void run_pkt_test(struct test_spec *test, int mode, int type)
 	case TEST_TYPE_BPF_RES:
 		testapp_bpf_res(test);
 		break;
-	default:
+	case TEST_TYPE_NOPOLL:
+		test_spec_set_name(test, "RUN_TO_COMPLETION");
+		testapp_validate_traffic(test);
+		break;
+	case TEST_TYPE_POLL:
+		test_spec_set_name(test, "POLL");
 		testapp_validate_traffic(test);
 		break;
+	default:
+		break;
 	}
+
+	print_ksft_result(test);
 }
 
 static struct ifobject *ifobject_create(void)

tools/testing/selftests/bpf/xdpxceiver.h

@@ -22,6 +22,7 @@
 #define MAX_INTERFACES_NAMESPACE_CHARS 10
 #define MAX_SOCKS 1
 #define MAX_SOCKETS 2
+#define MAX_TEST_NAME_SIZE 32
 #define MAX_TEARDOWN_ITER 10
 #define MAX_BIDI_ITER 2
 #define MAX_BPF_ITER 2
@@ -141,6 +142,7 @@ struct ifobject {
 struct test_spec {
 	struct ifobject *ifobj_tx;
 	struct ifobject *ifobj_rx;
+	char name[MAX_TEST_NAME_SIZE];
 };
 
 /*threads*/