Code Construct

Specialised software development for open source and embedded systems

[Code Construct @CodeConstruct]

We're honoured to be able to support @_everythingopen again this year, and of course, to be attending too! 🎉

Looking forward to a great conf. Come and say hi!

[Everything Open @[email protected] @_everythingopen]

#EverythingOpen 2025 would not be possible without

Royal Penguin sponsor: @CodeConstruct provides high-quality #openSource software services. Visit: https://t.co/5zqfeebl11

Program: https://t.co/bNmhdnV4M1
Tickets: https://t.co/UCLTaMU7O8

#EO2025 #conference

[Everything Open @[email protected] @_everythingopen]

Today's #EverythingOpen retro goes #OpenHardware - it's @jeremymeep of @CodeConstruct and the #LibreBMC baseboard management controller, used to power the @IBM #AC922 #WitherSpoon. If you love #OpenPOWER, #FPGA, #HPC or #CPU, this one's for you.

🎥 https://t.co/LQuahQQBZA

[Code Construct @CodeConstruct]

Code Construct developer @mramboar has just published a new article around dealing with #git source trees when coordinating with an ever-changing upstream.

Check it out at: https://t.co/OKTOsKzdjz

[Code Construct @CodeConstruct]

It's a pleasure! Thank you, #everythingopen team!

[Everything Open @[email protected] @_everythingopen]

A huge thank you to Adelie Penguin #sponsor @CodeConstruct and to Fairy Penguin #sponsor @Collabora for your support - we couldn't deliver #EverythingOpen without you!

https://t.co/D605bOzEmZ

[Code Construct @CodeConstruct]

Come and check out a bit of our #librebmc shenanigans at #EverythingOpen

[Everything Open @[email protected] @_everythingopen]

Continuing our Speaker Spotlights as we slide in to #EverythingOpen, please meet Jeremy Kerr of @CodeConstruct, who will be presenting "#LibreBMC: literally everything is open". As Jeremy explains, the #hardware, #firmware and implementation is all #open.
https://t.co/53Atu272op

[Code Construct @CodeConstruct]

🫡🎺

[Pawsey Supercomputing Research Centre @PawseyCentre]

Tonight, @PawseyCentre's switches off Magnus after eight years of service to the Australian science & research community 😢

Magnus' impact has been immense for the acceleration of science and research in Australia 👏🏽 https://t.co/BoGLuSFJkS

So long, and thanks for all the fish.

[Code Construct @CodeConstruct]

... we also have some work in progress for decoding this directly "off the wire" through a mash-up of sigrok, any sigrok-supported logic analyser hardware, and your i2c bus. Stay tuned for updates!

[Code Construct @CodeConstruct]

Debugging MCTP communications? A few MCTP-related protocol decoders have now landed in upstream wireshark:

· MCTP
· MCTP control protocol
· NVMe-MI

You'll need bleeding-edge wireshark for now (as of https://t.co/uRCMVSRcTa), but these should all be included the next release.

[Code Construct @CodeConstruct]

We have been on a document-writing frenzy this week!

Here's the latest: the details on updating NVMe device firmware over the out-of-band MCTP link, using the NVMe-MI code we have been working on.

https://t.co/BBI0E56kbQ

[Code Construct @CodeConstruct]

(this is also a contender for the lowest-cost 64-bit powerpc machine, just with some assembly required. Unlike most other ppc64 hardware, doesn't require a two-person lift 😆 )

[Code Construct @CodeConstruct]

A great background from @mikeyneuling on our recent #libreBMC work, and how it relates to the progression of hardware into the open source space

[Michael Neuling @mikeyneuling]

#LibreBMC shows the amazing things that can be done now with open hardware. Microwatt running Linux + OpenBMC powering up a server class machine.

[Code Construct @CodeConstruct]

@mikeyneuling ... if you're looking to dive in to open hardware on a technical level, the OrangeCrab running Microwatt is a great way to get started, for under $200.

We have a guide to getting it running at https://t.co/083rlapODg

[Code Construct @CodeConstruct]

Code Construct has been working on an exciting project with @OpenPOWERorg : We built a fully open source Baseboard Management Controller (BMC) implementation — right down to the hardware — and used it to boot & manage an IBM AC922 server.

Full details at: https://t.co/FdOVbS8oEd

[Code Construct @CodeConstruct]

More documentation! 📄We have just posted an overview of our recent additions to libnvme, enabling Management Interface (MI) communications with NVMe storage hardware.

Read all about it at https://t.co/TyfDjvOakH

[Code Construct @CodeConstruct]

Our patches for NVMe-MI support have just landed in the upstream libnvme project! 🥳

https://t.co/w4Hf0ZIsTI

These provide base support for managing NVMe devices using a i2c/SMBus link. There's an example program, mi-mctp, included too.

More protocol functions coming soon…

[Code Construct @CodeConstruct]

We're back on to some MCTP + NVMe-MI development - so a bit of dev hardware: an AST2500 EVB, serial console + netboot, EVB's i2c bus connected to our own NVMe break-out board, hosting a MCTP-capable NVMe drive, with outputs to a @dangerousproto Bus Pirate for i2c tracing. 🥳

[Code Construct @CodeConstruct]

This means that the 5.18 merge window is open - we have the next MCTP transport driver queued for this next version: MCTP over I2C/SMBus. This will allow MCTP communication with a wider set of peripheral devices - like PCIe devices, NVMe-MI endpoints, network hardware and more.

[Code Construct @CodeConstruct]

Linux kernel 5.17 has been released! We have a few updates for the MCTP stack that have landed:

• The first MCTP transport binding is now available: MCTP over Serial.
• Netlink events are generated on local MCTP addresses add/remove
• … plus some small fixes and cleanups

[Code Construct @CodeConstruct]

@mikeyneuling @OpenPOWERorg @GregDavill ... and we've just posted a little documentation on getting started with Microwatt on the OrangeCrab, if you'd like to start experimenting yourself!

https://t.co/lgk0oS739x

[Code Construct @CodeConstruct]

Just posted: a quick guide to getting the Microwatt core running Linux on an OrangeCrab ECP-5 FPGA: https://t.co/083rlaHXRo

This gives us a reasonably easy and inexpensive way to start developing with an #OpenPOWER core, using entirely open source tools. 🎉

[Code Construct @CodeConstruct]

Just posted: a quick guide to getting the Microwatt core running Linux on an OrangeCrab ECP-5 FPGA: https://t.co/083rlaHXRo

This gives us a reasonably easy and inexpensive way to start developing with an #OpenPOWER core, using entirely open source tools. 🎉