bpf: add support for BASE_RTT
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- v1 Latest5 patches 2 repliesIn review
Patches in v1 No applies recorded yet
| # | Subject and files | Size | Replies | Applied |
|---|---|---|---|---|
| 1/5 | bpf: add support for BPF_SOCK_OPS_BASE_RTTinclude/ | +7 | 0 replies | |
| 2/5 | bpf: Adding helper function bpf_getsockopsinclude/ net/ tools/ | +63 | 0 replies | |
| 3/5 | bpf: Add BPF_SOCKET_OPS_BASE_RTT support to tcp_nvnet/ | +38 | 1 reply | |
| 4/5 | bpf: sample BPF_SOCKET_OPS_BASE_RTT programsamples/ samples/ | +79 | 0 replies | |
| 5/5 | bpf: create samples/bpf/tcp_bpf.readmesamples/ | +27 | 0 replies |
Reviews trailers per patch
All 5 patches have a Reviewed-by or Acked-by.
| Patch | Daniel Borkmann | Lawrence Brakmo | Alexei Starovoitov |
|---|---|---|---|
| 1/5 | A-b | A-b | |
| 2/5 | A-b | A-b | A-b |
| 3/5 | A-b | ||
| 4/5 | A-b | ||
| 5/5 | A-b |
Trailers given in replies are filled; those carried in the patches from earlier versions are outlined with dashes. Scroll the table sideways for all 3 reviewers.
Cover letter [PATCH net-next 0/5] bpf: add support for BASE_RTT
This patch set adds the following functionality to socket_ops BPF programs.
1) Add bpf helper function bpf_getsocketops. Currently only supports TCP_CONGESTION
2) Add BPF_SOCKET_OPS_BASE_RTT op to get the base RTT of the connection. In general, the base RTT indicates the threshold such that RTTs above it indicate congestion. More details in the relevant patches.
Consists of the following patches:
[PATCH net-next 1/5] bpf: add support for BPF_SOCK_OPS_BASE_RTT [PATCH net-next 2/5] bpf: Adding helper function bpf_getsockops [PATCH net-next 3/5] bpf: Add BPF_SOCKET_OPS_BASE_RTT support to [PATCH net-next 4/5] bpf: sample BPF_SOCKET_OPS_BASE_RTT program [PATCH net-next 5/5] bpf: create samples/bpf/tcp_bpf.readme
include/uapi/linux/bpf.h | 26 +++++++++++-- net/core/filter.c | 46 ++++++++++++++++++++++- net/ipv4/tcp_nv.c | 40 +++++++++++++++++++- samples/bpf/Makefile | 1 + samples/bpf/tcp_basertt_kern.c | 78 +++++++++++++++++++++++++++++++++++++++ samples/bpf/tcp_bbf.readme | 27 ++++++++++++++ tools/testing/selftests/bpf/bpf_helpers.h | 3 ++ 7 files changed, 214 insertions(+), 7 deletions(-)