Hey Stan, On Thu, Oct 15, 2026 at 02:45 PM -07, Stanislav Fomichev wrote: > On 10/13, Willem Ferguson wrote:
[...] >> Questions for reviewers: >> >> 1. Is encoding an identifier in the low bits of TSval acceptable in >> principle, given the trade-offs above? >> 2. If so, what feedback do you have on the implementation? > > Don't see any feedback yet, so from the top of my head: looks like you > control two sides of the communication, so why not a custom (bpf) tcp option? > Would you need that on every packet and it makes it expensive? > > Or any other field you can abuse maybe? IPv6 Flow label? Nah, we don't control the client unfortunately. Client here is any device that connects to our edge PoP. > Implementation-wise, the sock_ops is going away in favor of bpf_tcp_ops, > so BPF_SOCK_OPS_TCP_TS_ID_CB_FLAG is a no go. Yeah, we have just recently realized [1]. Thanks for feedback. [1] https://lore.kernel.org/all/[email protected]/
