Re: [Qemu-devel] Is network backend netmap worth keeping?

[Philippe Mathieu-Daudé]

I forgot to Cc Thomas, who did a lot of directory refactoring in the past.

On Mon, Aug 12, 2019 at 2:32 PM Philippe Mathieu-Daudé
<address@hidden> wrote:
> On 8/8/19 1:52 PM, Markus Armbruster wrote:
> > Giuseppe Lettieri <address@hidden> writes:
> >
> >> Dear Markus,
> >>
> >> the netmap project is alive and well, if a bit understuffed. We have
> >> moved to github:
> >>
> >> https://github.com/luigirizzo/netmap
> >>
> >> We have users from FreeBSD, where it is part of the official kernel,
> >> and Linux, both from Academia and industry.
> >>
> >> But you asked about the netmap backend in QEMU, in particular. When it
> >> was merged, the decision was made to disable it by default because it
> >> was not supported upstream in Linux. As Jason Wang says, this support
> >> is even more unlikely now than it was then.
> >>
> >> The fact the the backend has to be explicitly enabled and built from
> >> the sources has obviously cut down the number of potential
> >> users. However, we still think it is useful and we have pending
> >> updates for it. If it's causing problems in the workflow, I am willing
> >> to help as much as I can.
> >
> > Could we make it a submodule, simililar to slirp and capstone?
>
> Good idea, this would extend the coverage. Netmap users/developers are
> probably best suited to do this.
>
> >
> >     --enable-netmap=system      use the system's netmap
> >     --enable-netmap=git         use the git submodule
> >     --enable-netmap             use system's, else git, else fail
> >     --disable-netmap            disable netmap
> >     default                     use system's, else git, else disable
> >
> > A fresh clone of https://github.com/luigirizzo/netmap clocks in at
> > 14MiB, which is between libslirp's 1.5MiB and capstone's 72MiB.
>
> In which directory should we clone it? As /netmap directly?
>
> Should we start using a 3rd-party/ subdirectory?
>
> Similarly, what about the virglrenderer component?
>
> Its repository is: https://anongit.freedesktop.org/git/virglrenderer.git