diff mbox series

[mptcp-next,08/10] selftests/bpf: add bpf_rr test

Message ID 643692d09a7a68a384ff33ce6be2646c510f9cd1.1653033459.git.geliang.tang@suse.com (mailing list archive)
State Superseded, archived
Headers show
Series BPF packet scheduler | expand

Checks

Context Check Description
matttbe/checkpatch success total: 0 errors, 0 warnings, 0 checks, 54 lines checked
matttbe/build success Build and static analysis OK
matttbe/KVM_Validation__normal warning Unstable: 2 failed test(s): packetdrill_sockopts selftest_mptcp_join
matttbe/KVM_Validation__debug warning Unstable: 2 failed test(s): selftest_diag selftest_mptcp_join - Critical: 11 Call Trace(s) - Critical: Global Timeout ❌

Commit Message

Geliang Tang May 20, 2022, 8:04 a.m. UTC 
This patch adds the round-robin BPF MPTCP scheduler test. Use sysctl to
set net.mptcp.scheduler to use this sched. Add a veth net device to
simulate the multiple addresses case. Use 'ip mptcp endpoint' command to
add this new endpoint to PM netlink.

Signed-off-by: Geliang Tang <geliang.tang@suse.com>
---
 .../testing/selftests/bpf/prog_tests/mptcp.c  | 38 +++++++++++++++++++
 1 file changed, 38 insertions(+)
diff mbox series

Patch

diff --git a/tools/testing/selftests/bpf/prog_tests/mptcp.c b/tools/testing/selftests/bpf/prog_tests/mptcp.c
index 9d37c509d3ce..afa4de991f1e 100644
--- a/tools/testing/selftests/bpf/prog_tests/mptcp.c
+++ b/tools/testing/selftests/bpf/prog_tests/mptcp.c
@@ -7,6 +7,7 @@ 
 #include "network_helpers.h"
 #include "mptcp_sock.skel.h"
 #include "mptcp_bpf_first.skel.h"
+#include "mptcp_bpf_rr.skel.h"
 
 #ifndef TCP_CA_NAME_MAX
 #define TCP_CA_NAME_MAX	16
@@ -279,10 +280,47 @@  static void test_first(void)
 	mptcp_bpf_first__destroy(first_skel);
 }
 
+static void test_rr(void)
+{
+	struct mptcp_bpf_rr *rr_skel;
+	int server_fd, client_fd;
+	struct bpf_link *link;
+
+	rr_skel = mptcp_bpf_rr__open_and_load();
+	if (!ASSERT_OK_PTR(rr_skel, "bpf_rr__open_and_load"))
+		return;
+
+	link = bpf_map__attach_struct_ops(rr_skel->maps.rr);
+	if (!ASSERT_OK_PTR(link, "bpf_map__attach_struct_ops")) {
+		mptcp_bpf_rr__destroy(rr_skel);
+		return;
+	}
+
+	system("ip link add veth1 type veth");
+	system("ip addr add 10.0.1.1/24 dev veth1");
+	system("ip link set veth1 up");
+	system("ip mptcp endpoint add 10.0.1.1 subflow");
+	system("sysctl -qw net.mptcp.scheduler=bpf_rr");
+	server_fd = start_mptcp_server(AF_INET, NULL, 0, 0);
+	client_fd = connect_to_fd(server_fd, 0);
+
+	send_data(server_fd, client_fd);
+
+	close(client_fd);
+	close(server_fd);
+	system("sysctl -qw net.mptcp.scheduler=default");
+	system("ip mptcp endpoint flush");
+	system("ip link del veth1");
+	bpf_link__destroy(link);
+	mptcp_bpf_rr__destroy(rr_skel);
+}
+
 void test_mptcp(void)
 {
 	if (test__start_subtest("base"))
 		test_base();
 	if (test__start_subtest("first"))
 		test_first();
+	if (test__start_subtest("rr"))
+		test_rr();
 }