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Tue, 11 Mar 2025 01:56:29 -0700 (PDT) From: Jason Xing To: davem@davemloft.net, edumazet@google.com, kuba@kernel.org, pabeni@redhat.com, dsahern@kernel.org, ast@kernel.org, daniel@iogearbox.net, andrii@kernel.org, martin.lau@linux.dev, eddyz87@gmail.com, song@kernel.org, yonghong.song@linux.dev, john.fastabend@gmail.com, kpsingh@kernel.org, sdf@fomichev.me, haoluo@google.com, jolsa@kernel.org, horms@kernel.org, kuniyu@amazon.com, ncardwell@google.com Cc: bpf@vger.kernel.org, netdev@vger.kernel.org, Jason Xing Subject: [PATCH bpf-next v2 0/6] tcp: add some RTO MIN and DELACK MAX {bpf_}set/getsockopt supports Date: Tue, 11 Mar 2025 09:54:31 +0100 Message-Id: <20250311085437.14703-1-kerneljasonxing@gmail.com> X-Mailer: git-send-email 2.33.0 Precedence: bulk X-Mailing-List: bpf@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Patchwork-Delegate: bpf@iogearbox.net Introduce bpf_sol_tcp_getsockopt() helper. Add bpf_getsockopt for RTO MIN and DELACK MAX. Add setsockopt/getsockopt for RTO MIN and DELACK MAX. Add corresponding selftests for bpf. v2 Link: https://lore.kernel.org/all/20250309123004.85612-1-kerneljasonxing@gmail.com/ 1. add bpf getsockopt common helper 2. target bpf-next net branch Jason Xing (6): bpf: introduce bpf_sol_tcp_getsockopt to support TCP_BPF flags tcp: bpf: support bpf_getsockopt for TCP_BPF_RTO_MIN tcp: bpf: support bpf_getsockopt for TCP_BPF_DELACK_MAX tcp: support TCP_RTO_MIN_US for set/getsockopt use tcp: support TCP_DELACK_MAX_US for set/getsockopt use selftests: add bpf_set/getsockopt() for TCP_BPF_DELACK_MAX and TCP_BPF_RTO_MIN Documentation/networking/ip-sysctl.rst | 4 +- include/net/tcp.h | 2 +- include/uapi/linux/tcp.h | 2 + net/core/filter.c | 45 ++++++++++++++----- net/ipv4/tcp.c | 32 ++++++++++++- net/ipv4/tcp_output.c | 2 +- .../selftests/bpf/progs/setget_sockopt.c | 2 + 7 files changed, 71 insertions(+), 18 deletions(-)