On Mon, Oct 4, 2021 at 4:35 AM Francois ten Krooden <f...@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 > > ________________________________________ > From: Santiago Martinez [s...@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 > > > > > > 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 > > > > > > > > Important Notice: > > > > This e-mail and its contents are subject to the Nanoteq (Pty) Ltd e-mail > > legal notice available at: > > http://www.nanoteq.com/AboutUs/EmailDisclaimer.aspx > > > > > > Important Notice: > > This e-mail and its contents are subject to the Nanoteq (Pty) Ltd e-mail > legal notice available at: > http://www.nanoteq.com/AboutUs/EmailDisclaimer.aspx > > >
