[PATCH v8 net-next 0/2] Explicit TSO segment count

From: Chia-Yu Chang <[email protected]>

Hello,

This series replaces the existing min_tso_segs() congestion control
callback with a new tso_segs() callback that allows congestion control
algorithms to provide an explicit TSO segment count for each data burst.
 
To support BPF congestion controls, the series also exposes
tcp_tso_autosize() as a BPF kfunc, allowing BPF implementations to
reuse the kernel TSO autosizing logic while implementing custom
tso_segs() callbacks.
 
Changes since v7:
- Deprecate bbr_min_tso_segs() kfunc instead of removing it
- Add bbr_tso_segs() kfunc
- Update tso_segs() callback documentation
- Sanitize min_tso_segs in tcp_tso_autosize()
- Return the sanitized min_tso_segs value when mss_now == 0
- Update commit messages
 
Thanks,
Chia-Yu

---
Chia-Yu Chang (2):
  tcp: Replace min_tso_segs() with tso_segs() CC callback
  bpf: make tcp_tso_autosize() available to BPF congestion controls

 include/net/tcp.h                             | 15 ++++++++--
 net/ipv4/bpf_tcp_ca.c                         |  5 ++--
 net/ipv4/tcp_bbr.c                            | 12 ++++++--
 net/ipv4/tcp_output.c                         | 28 ++++++++++++-------
 .../selftests/bpf/progs/tcp_ca_kfunc.c        |  8 +++---
 5 files changed, 48 insertions(+), 20 deletions(-)

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2.34.1