Re: porting VPP

thank you!

On Thu, Oct 12, 2023, 3:14 AM Kobie W. Fick <kwf@nanoteq.com> wrote:

> Hi Greg,
>
>
>
> We started porting VPP to FreeBSD a couple of years ago. However, it has
> since stalled due to a number of issues.
>
>
>
> Please refer to the previous email regarding this.
>
>
>
> On Mon, Oct 4, 2021 at 4:35 AM Francois ten Krooden <ftk@nanoteq.com>
> wrote:
>
> >
>
> > Hi Santiago
>
> >
>
> > The patches we have made is all available on the github fork we made
> from the VPP repository.
>
> > It is located at https://github.com/ftk-ntq/vpp/tree/freebsd
>
> > So anyone who is interested can find it there.
>
> >
>
> > To make the VFIO support work I unfortunately have no idea.
>
> > I am not exactly sure but I think there is some kernel work required and
> then an update to DPDK.
>
> > I am not sure how much effort that would be.
>
>
>
> I would like to take a look at this, maybe we should discuss it at the
> upcoming vendor summit https://wiki.freebsd.org/DevSummit/202111
>
>
>
> > Kind Regards
>
> >
>
> > Francois ten Krooden
>
> > Principal Developer
>
> >
>
> > Nanoteq
>
> >         Tel: +27 12 672 7000
>
> >         Fax: +27 12 665 1343
>
> >         Postal: P.O. Box 7991, Centurion, 0046
>
> >         Physical: Unit C01, Corporate Park 66, 269 Von Willich Avenue,
>
> > Centurion
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> >
>
> > ________________________________________
>
> > From: Santiago Martinez [sm@codenetworks.net]
>
> > Sent: Wednesday, September 22, 2021 11:22 AM
>
> > To: freebsd-net@freebsd.org
>
> > Subject: Re: Vector Packet Processing (VPP) portability on FreeBSD
>
> >
>
> > Hi Francois, I hope you are doing well.
>
> >
>
> > It is great to hear about work/progress/updates on VPP / DPDK / Netmap
>
> > on FBSD, even if the results are not the best.
>
> >
>
> > Unfortunately, I'm not a developer, so I cannot help much on the
>
> > matter of the missing bits.
>
> > Just wondering if those modifications that your team have done to make
>
> > VPP run can be upstreamed or shared with the community, so maybe we
>
> > can create a VPP package making it easier for others to
> deploy/test/improve.
>
> >
>
> > On the other hand, do you roughly know how much effort is required to
>
> > make VFIO support at the same level as Linux?
>
> >
>
> > I hope it makes sense.
>
> >
>
> > Best regards.
>
> >
>
> > Santiago
>
> >
>
> >
>
> > On 9/21/21 11:52 AM, Francois ten Krooden wrote:
>
> > > Hi
>
> > >
>
> > > This is just some feedback for those who had an interest in this topic.
>
> > >
>
> > > After spending quite some time on the VPP to FreeBSD porting effort
> where we did manage to get VPP working with netmap, and VPP compiling with
> DPDK; We realised that there are some big issues that we would need to
> overcome. Some of these efforts are not viable for our small team to
> accomplish in a reasonable time frame.
>
> > > The main issues that we have found are:
>
> > > - Tests proved that netmap would not deliver the desired performance
> as it is currently implemented within VPP. The main issues here are that
> for every 256 packets memory seems to be allocated again, also a number of
> copies occur in the memory which slows down the performance.
>
> > > - VPP relies on VFIO to map device memory into user space for
> processing within the application. This code is implemented in DPDK in the
> Linux implementation but in the FreeBSD implementation in DPDK these
> functions are stubbed.
>
> > > - To interface with crypto-offloading hardware such as the QAT card
> from Intel, or our own card VPP/DPDK also utilize VFIO with the PCI device.
>
> > > - As far as we have been able to see the VFIO support in FreeBSD is
> not at the same level as Linux, which would then require additional kernel
> development which is not possible in the time frame.
>
> > >
>
> > > Regards
>
> > >
>
> > > Francois ten Krooden
>
> > > Principal Developer
>
> > >
>
>
>
> Regards
>
> *Kobie Fick*
> Senior Software Developer
>
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>
> *From:* Greg Wallace [mailto:greg@freebsdfoundation.org]
> *Sent:* Friday, 06 October 2023 2:36 PM
> *To:* freebsd-net@freebsd.org
> *Subject:* porting VPP
>
>
>
> Hi list,
>
>
>
> I am writing to see if anyone is familiar with VPP and/or already working
> on porting it to FreeBSD.
>
>
>
> Thanks in advance!
>
>
>
> --
>
> Greg Wallace
>
> Director of Partnerships & Research
>
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