2022-06-08 Project Stratos Meeting Notes

 Date

Jun 8, 2022

 Participants

• @Alex Bennée

• @Leonardo Garcia

• @Randy Linnell

• @Mathieu Poirier

• @Arnd Bergmann

• Christopher Clark

• @Vincent Guittot

 Agenda

 Discussion topics

• VirtIO devices

  • AB: the wifi simulation was originally targeting UML

  • AJB: is it still a thing?

    • AB: yes, although not used in production anymore

  • AJB: exploring the use case for wifi

  • AJB: can netlink be plumbed into normal ethernet devices

    • AB: already is

    • AJB: so could we just add additional features to virtio-net

    • AB: I don’t see why not

    • AJB: who to talk to?

    • AB: maybe Lee Jones? probably bug fixes

      • $ git log --format=%ae v3.0.. -- drivers/net/wireless/ | grep linaro | sort | uniq -c | sort -nr | head
        145 lee.jones@linaro.org
        77 bryan.odonoghue@linaro.org
        40 loic.poulain@linaro.org
        26 bjorn.andersson@linaro.org
        9 sachin.kamat@linaro.org
        7 linus.walleij@linaro.org
        5 andy.green@linaro.org
        4 srinivas.kandagatla@linaro.org

  • AJB: any thoughts on on virtio-gpu

    • AB: fundamentally it’s HW specific

    • AJB: doesn’t OpenCL abstract things?

    • AB: lots of layers with trade offs

    • AB: virtio-gpu should work for a lot of the NPU abstractions

    • AB: although there are some simplere ones just matrix multipliers

  • AB: GVE

    • looks like a SR-IOV type device (much like AWS approach)

    • LG: could be SmartNIC with virtual devices

• Action items

  • VG: still to chase up SCMI bindings

  •  

 Action items

 Decisions