[PATCH v1 1/1] usertools: add DPDK build directory setup script

[Morten Brørup]

> From: fengchengwen [mailto:fengchengwen at huawei.com]
> Sent: Friday, 6 September 2024 09.41
> 
> On 2024/9/5 15:29, David Marchand wrote:
> > On Wed, Sep 4, 2024 at 5:17 PM Anatoly Burakov
> > <anatoly.burakov at intel.com> wrote:
> >>
> >> Enter this script. It relies on Meson's introspection capabilities as well
> >> as the dependency graphs generated by our build system to display all
> >> available components, and handle any dependencies for them automatically,
> >> while also not forcing user to remember any command-line options and lists
> >> of drivers, and instead relying on interactive TUI to display list of
> >> available options. It can also produce builds that are as minimal as
> >> possible (including cutting down libraries being built) by utilizing the
> >> fact that our dependency graphs report which dependency is mandatory and
> >> which one is optional.
> >>
> >> Because it is not meant to replace native Meson build configuration but
> >> is rather targeted at users who are not intimately familiar wtih DPDK's
> >> build system, it is run in interactive mode by default. However, it is
> >> also possible to run it without interaction, in which case it will pass
> >> all its parameters to Meson directly, with added benefit of dependency
> >> tracking and producing minimal builds if desired.
> >>
> >> Signed-off-by: Anatoly Burakov <anatoly.burakov at intel.com>
> >
> > There is no documentation.

+1

> > And it is a devtools script and not a usertools, iow, no point in
> > installing this along a built dpdk.

+1

> >
> > I don't see a lot of value in such script.
> 
> +1
> I just run this script, and it provide UI just like Linux kernel "make
> menuconfig",
> but I think DPDK is not complicated enough to have to use such menuconfig.
> 
> > In my opinion, people who really want to tune their dpdk build should
> > enter the details carefully and understand the implications.
> > But other than that, I have no strong objection.

I think this script is a good step on the roadmap towards making DPDK build time configuration more developer friendly.

The idea of making DPDK 100 % runtime configurable and 0 % build time configurable has failed.

DPDK should be buildable by distros with a lot of features and drivers enabled, and projects using it for special use cases should have the ability to build a purpose-specific variant. Just like the kernel.