From: Luca Boccassi <bluca@debian.org>
To: Stephen Hemminger <stephen@networkplumber.org>
Cc: dev@dpdk.org
Subject: Re: [PATCH v5 7/8] net/tap: use libbpf to load new BPF program
Date: Thu, 4 Apr 2024 17:11:34 +0100 [thread overview]
Message-ID: <CAMw=ZnRA+1SSe3wiPV7NDJxXVwR0nKXuodeDvWRRfxJNXXzA8Q@mail.gmail.com> (raw)
In-Reply-To: <20240404083058.1fc6884d@hermes.local>
On Thu, 4 Apr 2024 at 16:31, Stephen Hemminger
<stephen@networkplumber.org> wrote:
>
> On Wed, 3 Apr 2024 22:19:20 +0100
> Luca Boccassi <bluca@debian.org> wrote:
>
> > On Wed, 3 Apr 2024 at 16:55, Stephen Hemminger
> > <stephen@networkplumber.org> wrote:
> > >
> > > On Wed, 03 Apr 2024 12:50:35 +0100
> > > Luca Boccassi <bluca@debian.org> wrote:
> > >
> > > > Using bpftool to generate the header at build time is a bit icky,
> > > > because it will look at sysfs on the build system, which is from the
> > > > running kernel. But a build system's kernel might be some ancient LTS,
> > > > and even be a completely different kconfig/build/distro from the actual
> > > > runtime one.
> > >
> > > One other option would be to ship a pre-built skeleton file.
> > > Which is what the method the old code did.
> > > But that creates an implied dependency on the developers machine build environment.
> >
> > That's what the distro-provided vmlinux.h should help with - by
> > #include'ing that, it should be possible to build a co-re bpf program,
> > no other artifacts needed. You can try it out locally by generating it
> > from the local running kernel on your dev machine:
> >
> > bpftool btf dump file /sys/kernel/btf/vmlinux format c > vmlinux.h
>
> What about Ubuntu with borked installation of bpftool?
Yeah that's a bit confusing, the way to do it is to install
linux-tools-generic and then here's logic to find the right one:
https://git.launchpad.net/ubuntu/+source/xdp-tools/tree/debian/rules#n34
But I wouldn't bother with it in upstream projects, let the
integrators deal with it
next prev parent reply other threads:[~2024-04-04 16:11 UTC|newest]
Thread overview: 133+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-01-30 3:46 [RFC 0/2] net/tap RSS BPF rewrite Stephen Hemminger
2024-01-30 3:46 ` [RFC 1/2] tap: stop "vendoring" linux bpf headers Stephen Hemminger
2024-01-30 3:46 ` [RFC 2/2] tap: rework BPF handling Stephen Hemminger
2024-02-07 22:11 ` [PATCH v2 0/7] net/tap: RSS using BPF overhaul Stephen Hemminger
2024-02-07 22:11 ` [PATCH v2 1/7] net/tap: remove unused RSS hash types Stephen Hemminger
2024-02-07 22:11 ` [PATCH v2 2/7] net/tap: validate and setup parameters for BPF RSS Stephen Hemminger
2024-02-07 22:11 ` [PATCH v2 3/7] net/tap: stop "vendoring" linux bpf headers Stephen Hemminger
2024-02-07 22:11 ` [PATCH v2 4/7] net/tap: rewrite the RSS BPF program Stephen Hemminger
2024-02-07 22:11 ` [PATCH v2 5/7] net/tap: use libbpf to load new " Stephen Hemminger
2024-02-07 22:11 ` [PATCH v2 6/7] net/tap: remove no longer used files Stephen Hemminger
2024-02-07 22:11 ` [PATCH v2 7/7] MAINTAINERS: add maintainer for TAP device Stephen Hemminger
2024-02-08 7:01 ` Morten Brørup
2024-02-08 17:41 ` [PATCH v3 0/7] net/tap: RSS using BPF overhaul Stephen Hemminger
2024-02-08 17:41 ` [PATCH v3 1/7] net/tap: remove unused RSS hash types Stephen Hemminger
2024-02-08 17:41 ` [PATCH v3 2/7] net/tap: validate and setup parameters for BPF RSS Stephen Hemminger
2024-02-08 17:41 ` [PATCH v3 3/7] tap: stop "vendoring" linux bpf headers Stephen Hemminger
2024-02-08 17:41 ` [PATCH v3 4/7] net/tap: rewrite the RSS BPF program Stephen Hemminger
2024-02-08 17:41 ` [PATCH v3 5/7] net/tap: use libbpf to load new " Stephen Hemminger
2024-02-08 18:02 ` Stephen Hemminger
2024-02-08 17:41 ` [PATCH v3 6/7] net/tap: remove no longer used files Stephen Hemminger
2024-02-08 17:41 ` [PATCH v3 7/7] MAINTAINERS: add maintainer for TAP device Stephen Hemminger
2024-02-08 19:05 ` [PATCH v4 0/7] net/tap: queue flow action RSS using BPF redo Stephen Hemminger
2024-02-08 19:05 ` [PATCH v4 1/7] net/tap: remove unused RSS hash types Stephen Hemminger
2024-02-08 19:05 ` [PATCH v4 2/7] net/tap: validate and setup parameters for BPF RSS Stephen Hemminger
2024-02-08 19:05 ` [PATCH v4 3/7] tap: stop "vendoring" linux bpf headers Stephen Hemminger
2024-02-08 19:05 ` [PATCH v4 4/7] net/tap: rewrite the RSS BPF program Stephen Hemminger
2024-02-10 0:54 ` Ferruh Yigit
2024-02-10 2:09 ` Stephen Hemminger
2024-02-28 17:27 ` Ferruh Yigit
2024-02-29 23:39 ` Stephen Hemminger
2024-02-08 19:05 ` [PATCH v4 5/7] net/tap: use libbpf to load new " Stephen Hemminger
2024-02-08 20:39 ` Stephen Hemminger
2024-02-08 19:05 ` [PATCH v4 6/7] net/tap: remove no longer used files Stephen Hemminger
2024-02-08 19:05 ` [PATCH v4 7/7] MAINTAINERS: add maintainer for TAP device Stephen Hemminger
2024-02-12 16:47 ` [PATCH v4 0/7] net/tap: queue flow action RSS using BPF redo Stephen Hemminger
2024-04-02 17:12 ` [PATCH v5 0/8] net/tap: cleanups and fix BPF flow Stephen Hemminger
2024-04-02 17:12 ` [PATCH v5 1/8] net/tap: do not duplicate fd's Stephen Hemminger
2024-04-02 17:12 ` [PATCH v5 2/8] doc: fix the requirements and building of TAP flow Stephen Hemminger
2024-04-02 17:12 ` [PATCH v5 3/8] net/tap: remove unused RSS hash types Stephen Hemminger
2024-04-02 17:12 ` [PATCH v5 4/8] net/tap: validate and setup parameters for BPF RSS Stephen Hemminger
2024-04-02 17:12 ` [PATCH v5 5/8] net/tap: stop "vendoring" linux bpf headers Stephen Hemminger
2024-04-02 17:12 ` [PATCH v5 6/8] net/tap: rewrite the RSS BPF program Stephen Hemminger
2024-04-02 17:12 ` [PATCH v5 7/8] net/tap: use libbpf to load new " Stephen Hemminger
2024-04-03 11:50 ` Luca Boccassi
2024-04-03 14:53 ` Stephen Hemminger
2024-04-03 15:55 ` Stephen Hemminger
2024-04-03 21:19 ` Luca Boccassi
2024-04-03 23:41 ` Stephen Hemminger
2024-04-04 0:49 ` Luca Boccassi
2024-04-04 15:51 ` Stephen Hemminger
2024-04-04 16:12 ` Luca Boccassi
2024-04-04 15:30 ` Stephen Hemminger
2024-04-04 16:11 ` Luca Boccassi [this message]
2024-04-02 17:12 ` [PATCH v5 8/8] net/tap: remove no longer used files Stephen Hemminger
2024-04-02 20:43 ` Stephen Hemminger
2024-04-05 21:14 ` [PATCH v6 0/8] net/tap: cleanup and fix BPF flow support Stephen Hemminger
2024-04-05 21:14 ` [PATCH v6 1/8] net/tap: do not duplicate fd's Stephen Hemminger
2024-04-05 21:14 ` [PATCH v6 2/8] doc: fix the requirements and building of TAP flow Stephen Hemminger
2024-04-05 21:14 ` [PATCH v6 3/8] net/tap: remove unused fields Stephen Hemminger
2024-04-05 21:14 ` [PATCH v6 4/8] net/tap: validate and setup parameters for BPF RSS Stephen Hemminger
2024-04-05 21:14 ` [PATCH v6 5/8] net/tap: stop "vendoring" linux bpf headers Stephen Hemminger
2024-04-05 21:14 ` [PATCH v6 6/8] net/tap: rewrite the RSS BPF program Stephen Hemminger
2024-04-05 21:14 ` [PATCH v6 7/8] net/tap: use libbpf to load new " Stephen Hemminger
2024-04-05 21:15 ` [PATCH v6 8/8] net/tap: remove no longer used files Stephen Hemminger
2024-04-08 21:18 ` [PATCH v7 0/8] net/tap: cleanups and fix BPF support Stephen Hemminger
2024-04-08 21:18 ` [PATCH v7 1/8] net/tap: do not duplicate fd's Stephen Hemminger
2024-04-08 21:18 ` [PATCH v7 2/8] net/tap: remove unused fields Stephen Hemminger
2024-04-08 21:18 ` [PATCH v7 3/8] net/tap: validate and setup parameters for BPF RSS Stephen Hemminger
2024-04-08 21:18 ` [PATCH v7 4/8] net/tap: do not build flow support if header is out of date Stephen Hemminger
2024-04-08 21:18 ` [PATCH v7 5/8] net/tap: rewrite the RSS BPF program Stephen Hemminger
2024-04-08 21:18 ` [PATCH v7 6/8] net/tap: use libbpf to load new " Stephen Hemminger
2024-04-08 21:18 ` [PATCH v7 7/8] net/tap: remove no longer used files Stephen Hemminger
2024-04-08 21:18 ` [PATCH v7 8/8] doc: update documentation of TAP PMD Stephen Hemminger
2024-04-09 3:40 ` [PATCH v8 0/8] net/tap: cleanups and fix BPF support Stephen Hemminger
2024-04-09 3:40 ` [PATCH v8 1/8] net/tap: do not duplicate fd's Stephen Hemminger
2024-04-09 3:40 ` [PATCH v8 2/8] net/tap: remove unused fields Stephen Hemminger
2024-04-09 3:40 ` [PATCH v8 3/8] net/tap: validate and setup parameters for BPF RSS Stephen Hemminger
2024-04-09 3:40 ` [PATCH v8 4/8] net/tap: do not build flow support if header is out of date Stephen Hemminger
2024-04-09 3:40 ` [PATCH v8 5/8] net/tap: rewrite the RSS BPF program Stephen Hemminger
2024-04-09 3:40 ` [PATCH v8 6/8] net/tap: use libbpf to load new " Stephen Hemminger
2024-04-09 3:40 ` [PATCH v8 7/8] net/tap: remove no longer used files Stephen Hemminger
2024-04-09 3:40 ` [PATCH v8 8/8] doc: update documentation of TAP PMD Stephen Hemminger
2024-04-26 15:48 ` [PATCH v9 0/9] net/tap: fix RSS (BPF) support Stephen Hemminger
2024-04-26 15:48 ` [PATCH v9 1/9] net/tap: do not duplicate fd's Stephen Hemminger
2024-05-01 11:13 ` Ferruh Yigit
2024-05-01 23:53 ` Stephen Hemminger
2024-05-02 14:51 ` Ferruh Yigit
2024-05-02 16:22 ` Stephen Hemminger
2024-04-26 15:48 ` [PATCH v9 2/9] net/tap: remove unused fields Stephen Hemminger
2024-04-26 15:48 ` [PATCH v9 3/9] net/tap: validate and setup parameters for BPF RSS Stephen Hemminger
2024-04-26 15:48 ` [PATCH v9 4/9] net/tap: do not build flow support if header is out of date Stephen Hemminger
2024-04-26 15:48 ` [PATCH v9 5/9] net/tap: rewrite the RSS BPF program Stephen Hemminger
2024-05-01 11:14 ` Ferruh Yigit
2024-04-26 15:48 ` [PATCH v9 6/9] net/tap: use libbpf to load new " Stephen Hemminger
2024-04-26 15:48 ` [PATCH v9 7/9] net/tap: remove no longer used files Stephen Hemminger
2024-04-26 15:48 ` [PATCH v9 8/9] doc: update documentation of TAP PMD Stephen Hemminger
2024-05-01 12:36 ` Ferruh Yigit
2024-04-26 15:48 ` [PATCH v9 9/9] net/tap: simplify the internal structure Stephen Hemminger
2024-05-01 11:18 ` [PATCH v9 0/9] net/tap: fix RSS (BPF) support Ferruh Yigit
2024-05-01 15:41 ` Stephen Hemminger
2024-05-01 16:11 ` [PATCH v10 0/9] net/tap: fix RSS (BPF) flow support Stephen Hemminger
2024-05-01 16:12 ` [PATCH v10 1/9] net/tap: do not duplicate fd's Stephen Hemminger
2024-05-01 16:12 ` [PATCH v10 2/9] net/tap: remove unused fields Stephen Hemminger
2024-05-01 16:12 ` [PATCH v10 3/9] net/tap: validate and setup parameters for BPF RSS Stephen Hemminger
2024-05-01 16:12 ` [PATCH v10 4/9] net/tap: do not build flow support if header is out of date Stephen Hemminger
2024-05-01 16:12 ` [PATCH v10 5/9] net/tap: rewrite the RSS BPF program Stephen Hemminger
2024-05-01 16:12 ` [PATCH v10 6/9] net/tap: use libbpf to load new " Stephen Hemminger
2024-05-01 16:12 ` [PATCH v10 7/9] net/tap: remove no longer used files Stephen Hemminger
2024-05-01 16:12 ` [PATCH v10 8/9] net/tap: simplify internals Stephen Hemminger
2024-05-01 16:12 ` [PATCH v10 9/9] net/tap: update documentation Stephen Hemminger
2024-05-02 2:49 ` [PATCH v11 0/9] net/tap fix RSS (BPF) flow support Stephen Hemminger
2024-05-02 2:49 ` [PATCH v11 1/9] net/tap: do not duplicate fd's Stephen Hemminger
2024-05-02 2:49 ` [PATCH v11 2/9] net/tap: remove unused fields Stephen Hemminger
2024-05-02 2:49 ` [PATCH v11 3/9] net/tap: validate and setup parameters for BPF RSS Stephen Hemminger
2024-05-02 2:49 ` [PATCH v11 4/9] net/tap: do not build flow support if header is out of date Stephen Hemminger
2024-05-02 2:49 ` [PATCH v11 5/9] net/tap: rewrite the RSS BPF program Stephen Hemminger
2024-05-02 2:49 ` [PATCH v11 6/9] net/tap: use libbpf to load new " Stephen Hemminger
2024-05-02 2:49 ` [PATCH v11 7/9] net/tap: remove no longer used files Stephen Hemminger
2024-05-02 2:49 ` [PATCH v11 8/9] net/tap: simplify internals Stephen Hemminger
2024-05-02 2:49 ` [PATCH v11 9/9] net/tap: update documentation Stephen Hemminger
2024-05-02 21:31 ` [PATCH v12 00/12] net/tap: RSS and other fixes Stephen Hemminger
2024-05-02 21:31 ` [PATCH v12 01/12] net/tap: fix fd check in flow_isolate Stephen Hemminger
2024-05-02 21:31 ` [PATCH v12 02/12] net/tap: do not duplicate fd's Stephen Hemminger
2024-05-02 21:31 ` [PATCH v12 03/12] net/tap: remove unused fields Stephen Hemminger
2024-05-02 21:31 ` [PATCH v12 04/12] net/tap: validate and setup parameters for BPF RSS Stephen Hemminger
2024-05-02 21:31 ` [PATCH v12 05/12] net/tap: do not build flow support if header is out of date Stephen Hemminger
2024-05-02 21:31 ` [PATCH v12 06/12] net/tap: rewrite the RSS BPF program Stephen Hemminger
2024-05-02 21:31 ` [PATCH v12 07/12] net/tap: use libbpf to load new " Stephen Hemminger
2024-05-02 21:31 ` [PATCH v12 08/12] net/tap: remove no longer used files Stephen Hemminger
2024-05-02 21:31 ` [PATCH v12 09/12] net/tap: simplify internals Stephen Hemminger
2024-05-02 21:31 ` [PATCH v12 10/12] net/tap: remove extraneous newlines Stephen Hemminger
2024-05-02 21:31 ` [PATCH v12 11/12] net/tap: do not mark queue full as error Stephen Hemminger
2024-05-02 21:31 ` [PATCH v12 12/12] net/tap: update documentation Stephen Hemminger
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