netdev - [PATCH bpf-next 0/3] bpf: tcp: Add bpf

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Message-ID: <20200121195408.3756734-1-kafai@fb.com>
Date:   Tue, 21 Jan 2020 11:54:08 -0800
From:   Martin KaFai Lau <kafai@...com>
To:     <bpf@...r.kernel.org>
CC:     Alexei Starovoitov <ast@...nel.org>,
        Daniel Borkmann <daniel@...earbox.net>,
        David Miller <davem@...emloft.net>,
        Eric Dumazet <edumazet@...gle.com>, <kernel-team@...com>,
        <netdev@...r.kernel.org>
Subject: [PATCH bpf-next 0/3] bpf: tcp: Add bpf_cubic example

This set adds bpf_cubic.c example.  It was separated from the
earlier BPF STRUCT_OPS series.  Some highlights since the
last post:

1. It is based on EricD recent fixes to the kernel tcp_cubic. [1]
2. The bpf jiffies reading helper is inlined by the verifier.
   Different from the earlier version, it only reads jiffies alone
   and does not do usecs/jiffies conversion.
3. The bpf .kconfig map is used to read CONFIG_HZ which
   is then used in the usecs_to_jiffies() conversion.

[1]: https://patchwork.ozlabs.org/cover/1215066/

Martin KaFai Lau (3):
  bpf: Add BPF_FUNC_jiffies64
  bpf: Sync uapi bpf.h to tools/
  bpf: tcp: Add bpf_cubic example

 include/linux/bpf.h                           |   2 +
 include/uapi/linux/bpf.h                      |   9 +-
 kernel/bpf/core.c                             |   1 +
 kernel/bpf/helpers.c                          |  27 +
 kernel/bpf/verifier.c                         |  18 +
 net/core/filter.c                             |   2 +
 tools/include/uapi/linux/bpf.h                |   9 +-
 tools/testing/selftests/bpf/bpf_tcp_helpers.h |  16 +
 .../selftests/bpf/prog_tests/bpf_tcp_ca.c     |  25 +
 tools/testing/selftests/bpf/progs/bpf_cubic.c | 573 ++++++++++++++++++
 10 files changed, 680 insertions(+), 2 deletions(-)
 create mode 100644 tools/testing/selftests/bpf/progs/bpf_cubic.c

-- 
2.17.1