diff mbox series

[bpf-next,11/13] selftests: xsk: add single packet test

Message ID 20210922075613.12186-12-magnus.karlsson@gmail.com (mailing list archive)
State Accepted
Commit 96a40678ce5390cd8515ff32e55ad932fd1fa328
Delegated to: BPF
Headers show
Series xsk: i40e: ice: introduce batching for Rx buffer allocation | expand

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Commit Message

Magnus Karlsson Sept. 22, 2021, 7:56 a.m. UTC 
From: Magnus Karlsson <magnus.karlsson@intel.com>

Add a test where a single packet is sent and received. This might
sound like a silly test, but since many of the interfaces in xsk are
batched, it is important to be able to validate that we did not break
something as fundamental as just receiving single packets, instead of
batches of packets at high speed.

Signed-off-by: Magnus Karlsson <magnus.karlsson@intel.com>
---
 tools/testing/selftests/bpf/xdpxceiver.c | 13 +++++++++++++
 tools/testing/selftests/bpf/xdpxceiver.h |  1 +
 2 files changed, 14 insertions(+)
diff mbox series

Patch

diff --git a/tools/testing/selftests/bpf/xdpxceiver.c b/tools/testing/selftests/bpf/xdpxceiver.c
index 597fbe206026..3beea7531c8e 100644
--- a/tools/testing/selftests/bpf/xdpxceiver.c
+++ b/tools/testing/selftests/bpf/xdpxceiver.c
@@ -1217,6 +1217,15 @@  static bool testapp_unaligned(struct test_spec *test)
 	return true;
 }
 
+static void testapp_single_pkt(struct test_spec *test)
+{
+	struct pkt pkts[] = {{0x1000, PKT_SIZE, 0, true}};
+
+	pkt_stream_generate_custom(test, pkts, ARRAY_SIZE(pkts));
+	testapp_validate_traffic(test);
+	pkt_stream_restore_default(test);
+}
+
 static void testapp_invalid_desc(struct test_spec *test)
 {
 	struct pkt pkts[] = {
@@ -1298,6 +1307,10 @@  static void run_pkt_test(struct test_spec *test, enum test_mode mode, enum test_
 		test_spec_set_name(test, "RUN_TO_COMPLETION");
 		testapp_validate_traffic(test);
 		break;
+	case TEST_TYPE_RUN_TO_COMPLETION_SINGLE_PKT:
+		test_spec_set_name(test, "RUN_TO_COMPLETION_SINGLE_PKT");
+		testapp_single_pkt(test);
+		break;
 	case TEST_TYPE_RUN_TO_COMPLETION_2K_FRAME:
 		test_spec_set_name(test, "RUN_TO_COMPLETION_2K_FRAME_SIZE");
 		test->ifobj_tx->umem->frame_size = 2048;
diff --git a/tools/testing/selftests/bpf/xdpxceiver.h b/tools/testing/selftests/bpf/xdpxceiver.h
index 00790c976f4f..d075192c95f8 100644
--- a/tools/testing/selftests/bpf/xdpxceiver.h
+++ b/tools/testing/selftests/bpf/xdpxceiver.h
@@ -55,6 +55,7 @@  enum test_mode {
 enum test_type {
 	TEST_TYPE_RUN_TO_COMPLETION,
 	TEST_TYPE_RUN_TO_COMPLETION_2K_FRAME,
+	TEST_TYPE_RUN_TO_COMPLETION_SINGLE_PKT,
 	TEST_TYPE_POLL,
 	TEST_TYPE_UNALIGNED,
 	TEST_TYPE_ALIGNED_INV_DESC,