diff mbox series

[bpf-next,18/20] selftests: xsk: eliminate test specific if-statement in test runner

Message ID 20210901104732.10956-19-magnus.karlsson@gmail.com (mailing list archive)
State Superseded
Delegated to: BPF
Headers show
Series selftests: xsk: facilitate adding tests | expand

Checks

Context Check Description
bpf/vmtest-bpf-next fail VM_Test
netdev/cover_letter success Link
netdev/fixes_present success Link
netdev/patch_count fail Series longer than 15 patches
netdev/tree_selection success Clearly marked for bpf-next
netdev/subject_prefix success Link
netdev/cc_maintainers warning 9 maintainers not CCed: linux-kselftest@vger.kernel.org kpsingh@kernel.org hawk@kernel.org davem@davemloft.net kuba@kernel.org songliubraving@fb.com kafai@fb.com john.fastabend@gmail.com shuah@kernel.org
netdev/source_inline success Was 0 now: 0
netdev/verify_signedoff success Link
netdev/module_param success Was 0 now: 0
netdev/build_32bit success Errors and warnings before: 0 this patch: 0
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netdev/verify_fixes success Link
netdev/checkpatch warning WARNING: line length of 87 exceeds 80 columns WARNING: line length of 97 exceeds 80 columns
netdev/build_allmodconfig_warn success Errors and warnings before: 0 this patch: 0
netdev/header_inline success Link
bpf/vmtest-bpf-next-PR fail PR summary

Commit Message

Magnus Karlsson Sept. 1, 2021, 10:47 a.m. UTC 
From: Magnus Karlsson <magnus.karlsson@intel.com>

Eliminate a test specific if-statement for the RX_FILL_EMTPY stats
test that is present in the test runner. We can do this as we now have
the use_addr_for_fill option. Just create and empty Rx packet stream
and indicated that the test runner should use the addresses in that to
populate the fill ring. As there are no packets in the stream, the
fill ring will be empty and we will get the error stats that we want
to test.

Signed-off-by: Magnus Karlsson <magnus.karlsson@intel.com>
---
 tools/testing/selftests/bpf/xdpxceiver.c | 16 ++++++++++++----
 1 file changed, 12 insertions(+), 4 deletions(-)
diff mbox series

Patch

diff --git a/tools/testing/selftests/bpf/xdpxceiver.c b/tools/testing/selftests/bpf/xdpxceiver.c
index a24068993cc3..d085033afd53 100644
--- a/tools/testing/selftests/bpf/xdpxceiver.c
+++ b/tools/testing/selftests/bpf/xdpxceiver.c
@@ -458,8 +458,10 @@  static void pkt_stream_delete(struct pkt_stream *pkt_stream)
 
 static void pkt_stream_restore_default(struct test_spec *test)
 {
-	pkt_stream_delete(test->ifobj_tx->pkt_stream);
-	test->ifobj_tx->pkt_stream = test->pkt_stream_default;
+	if (test->ifobj_tx->pkt_stream != test->pkt_stream_default) {
+		pkt_stream_delete(test->ifobj_tx->pkt_stream);
+		test->ifobj_tx->pkt_stream = test->pkt_stream_default;
+	}
 	test->ifobj_rx->pkt_stream = test->pkt_stream_default;
 }
 
@@ -931,8 +933,7 @@  static void *worker_testapp_validate_rx(void *arg)
 	if (test->current_step == 1)
 		thread_common_ops(test, ifobject);
 
-	if (stat_test_type != STAT_TEST_RX_FILL_EMPTY)
-		xsk_populate_fill_ring(ifobject->umem, ifobject->pkt_stream);
+	xsk_populate_fill_ring(ifobject->umem, ifobject->pkt_stream);
 
 	fds.fd = xsk_socket__fd(ifobject->xsk->xsk);
 	fds.events = POLLIN;
@@ -1065,7 +1066,14 @@  static void testapp_stats(struct test_spec *test)
 			break;
 		case STAT_TEST_RX_FILL_EMPTY:
 			test_spec_set_name(test, "STAT_RX_FILL_EMPTY");
+			test->ifobj_rx->pkt_stream = pkt_stream_generate(test->ifobj_rx->umem, 0,
+									 MIN_PKT_SIZE);
+			if (!test->ifobj_rx->pkt_stream)
+				exit_with_error(ENOMEM);
+			test->ifobj_rx->pkt_stream->use_addr_for_fill = true;
 			testapp_validate_traffic(test);
+
+			pkt_stream_restore_default(test);
 			break;
 		default:
 			break;