bpf: make tcp_tso_autosize() available to BPF congestion controls

Expose tcp_tso_autosize() as a BPF kfunc and register it in the TCP
congestion-control kfunc set. This allows BPF congestion controls to
reuse the kernel TSO autosizing logic while applying their own
minimum TSO segment policy.

To make the kfunc robust against BPF-provided inputs, min_tso_segs is
sanitized to at least 1 and mss_now == 0 returns the sanitized minimum
value instead of performing autosizing.

Signed-off-by: Chia-Yu Chang <chia-yu.chang@nokia-bell-labs.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>

0 files changed, 0 insertions, 0 deletions