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From: Martin KaFai Lau <kafai@fb.com>
To: <bpf@vger.kernel.org>
Cc: Alexei Starovoitov <ast@kernel.org>,
Andrii Nakryiko <andrii@kernel.org>,
Daniel Borkmann <daniel@iogearbox.net>, <kernel-team@fb.com>,
<netdev@vger.kernel.org>
Subject: [PATCH bpf-next 0/4] bpf: tcp: Allow bpf-tcp-cc to call bpf_(get|set)sockopt
Date: Wed, 4 Aug 2021 22:01:19 -0700 [thread overview]
Message-ID: <20210805050119.1349009-1-kafai@fb.com> (raw)
This set allows the bpf-tcp-cc to call bpf_setsockopt. One use
case is to allow a bpf-tcp-cc switching to another cc during init().
For example, when the tcp flow is not ecn ready, the bpf_dctcp
can switch to another cc by calling setsockopt(TCP_CONGESTION).
bpf_getsockopt() is also added to have a symmetrical API, so
less usage surprise.
Martin KaFai Lau (4):
bpf: tcp: Allow bpf-tcp-cc to call bpf_(get|set)sockopt
bpf: selftests: Add sk_state to bpf_tcp_helpers.h
bpf: selftests: Add connect_to_fd_opts to network_helpers
bpf: selftests: Add dctcp fallback test
kernel/bpf/bpf_struct_ops.c | 22 +++-
net/ipv4/bpf_tcp_ca.c | 26 ++++-
tools/testing/selftests/bpf/bpf_tcp_helpers.h | 5 +
tools/testing/selftests/bpf/network_helpers.c | 23 +++-
tools/testing/selftests/bpf/network_helpers.h | 6 ++
.../selftests/bpf/prog_tests/bpf_tcp_ca.c | 101 ++++++++++++++----
.../selftests/bpf/prog_tests/kfunc_call.c | 2 +-
tools/testing/selftests/bpf/progs/bpf_dctcp.c | 20 ++++
.../selftests/bpf/progs/bpf_dctcp_release.c | 26 +++++
.../bpf/progs/kfunc_call_test_subprog.c | 4 +-
10 files changed, 203 insertions(+), 32 deletions(-)
create mode 100644 tools/testing/selftests/bpf/progs/bpf_dctcp_release.c
--
2.30.2
next reply other threads:[~2021-08-05 5:01 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-08-05 5:01 Martin KaFai Lau [this message]
2021-08-05 5:01 ` [PATCH bpf-next 1/4] " Martin KaFai Lau
2021-08-05 5:01 ` [PATCH bpf-next 2/4] bpf: selftests: Add sk_state to bpf_tcp_helpers.h Martin KaFai Lau
2021-08-05 5:01 ` [PATCH bpf-next 3/4] bpf: selftests: Add connect_to_fd_opts to network_helpers Martin KaFai Lau
2021-08-05 5:01 ` [PATCH bpf-next 4/4] bpf: selftests: Add dctcp fallback test Martin KaFai Lau
2021-08-06 16:07 ` Daniel Borkmann
2021-08-06 17:42 ` Martin KaFai Lau
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