2020-11-12 Project Stratos Sync Meeting notes

Attendees

• Arnd
• Mike
• Mathieu
• Jonathon Cameron (Huawei)
• Srinivas
• Chen Wei (Arm)
• Masami
• Joshua Pincus (Windriver)
• Jean-Phillip
• Alex B
• Maarten (Windriver)
• Alex Elder
• Mark O
• Dan Milea (Windriver)
• Viresh
• Ed Doxat (Arm)
• Salil (Huawei)
• Satyaki
• Srinivas (Huawei)
• Azzedine (Qualcomm)
• Bill MIlls
• Randy
• Shameer Kolothum
• Illias
• Bogdan (NXP)
• Jaswinder (NXP)
• Joakim
• Steffano (Xilinx) - popped in at the end

Goals

• Get a view of the engineering support available to work on Stratos.

Discussion items

• Review Action items

• Salil Mehta - discussion on Huawei's interest in the Stratos project
• 
• Dan Milea, Josh Pincus - OpenAMP App-services topics from  WindRiver
  • A couple of slides on Immediate goals, some research, some results, and then immediate next steps 
  • Notes from recent presentations here https://github.com/OpenAMP/open-amp/wiki/OpenAMP-Application-Services-Subgroup-Meeting-Notes-2020#20201027
  • 
  • 
• Viresh, Alex Elder, Bill Mills Greybus as a solution  for  I2C, SPI and GPIO

Notes

• Salil *** Slides ****
  • Short presentation - based in Cambridge - work in networking, maintainer HNS
  • working on cpu hotplug
  • Sketching out  picture looking for any collaboration - can see interest in virtio, and metadata
  • Areas 
    • Container networking
    • VM acceleration
    • interest in eBPF/XDP & support Open vSwitch with AF_XDP which is a performance problem.
    • AZ : Can you explain the pros and cons of slicing vs Aggregation
      • SM: we are just setting up the driver on our HW so we don't have hard numbers, but the community is showing symptoms

Dan virtio is a better fit than rpmsg **** Slides ****

• Bill:  can the user discover which MMIO is used

• Dan : it is pre-negotiated

• BIll : this would be a .

• AlexB : are these two CPUs with shared memory? Arnd: yes

• Arnd: Linux runs on the guest? Daon, using VxWorks and Linux is the guest.

• Alex: not using virtio notifications? this is out of band notification: Dan yes using Virto as transport without a hypervisor - but there is a performance penalty, but you can reuse the IP that is written for virtio.

Joshua

• *** Sildes ***

Action items

•