Re: git: 73ee5756dee6 - main - Fixes in the tcp infrastructure with respect to stack changes as well as other infrastructure updates for incoming rack features.

It is an interface so hidden it would be useless. Though Michael’s
suggestion should work ie tcp_xxx

R

On Sun, May 21, 2023 at 3:01 PM Antoine Brodin <antoine@freebsd.org> wrote:

> On Tue, Apr 4, 2023 at 12:31 PM Randall Stewart <rrs@freebsd.org> wrote:
> >
> > The branch main has been updated by rrs:
> >
> > URL:
> https://cgit.FreeBSD.org/src/commit/?id=73ee5756dee6b2110eb6fb2b2ef3cde39a1fcb4f
> >
> > commit 73ee5756dee6b2110eb6fb2b2ef3cde39a1fcb4f
> > Author:     Randall Stewart <rrs@FreeBSD.org>
> > AuthorDate: 2023-04-01 05:46:38 +0000
> > Commit:     Randall Stewart <rrs@FreeBSD.org>
> > CommitDate: 2023-04-01 05:46:38 +0000
> >
> >     Fixes in the tcp infrastructure with respect to stack changes as
> well as other infrastructure updates for incoming rack features.
> >
> >     So stack switching as always been a bit of a issue. We currently use
> a break before make setup which means that
> >     if something goes wrong you have to try to get back to a stack. This
> patch among a lot of other things changes that so
> >     that it is a make before break. We also expand some of the function
> blocks in prep for new features in rack that will allow
> >     more controlled pacing. We also add other abilities such as the
> pathway for a stack to query a previous stack to acquire from
> >     it critical state information so things in flight don't get dropped
> or mis-handled when switching stacks. We also add the
> >     concept of a timer granularity. This allows an alternate stack to
> change from the old ticks granularity to microseconds and
> >     of course this even gives us a pathway to go to nanosecond
> timekeeping if we need to (something for the data center to consider
> >     for sure).
> >
> >     Once all this lands I will then update rack to begin using all these
> new features.
> >
> >     Reviewed by: tuexen
> >     Sponsored by: Netflix Inc
> >     Differential Revision: https://reviews.freebsd.org/D39210
>
> Hi,
>
> Could you hide some stuff in netinet/tcp.h?
> struct http_req breaks curl 8.1.0.
>
> Antoine
>
-- 
---
Randall Stewart
rrs@netflix.com