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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] bpf: tcp: Allow bpf-tcp-cc to call bpf_(get|set)sockopt 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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