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

In reply to: Antoine Brodin : "Re: git: 73ee5756dee6 - main - Fixes in the tcp infrastructure with respect to stack changes as well as other infrastructure updates for incoming rack features."
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From: Randall Stewart <rrs_at_netflix.com>
Date: Tue, 23 May 2023 10:23:35 UTC

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