Installing/using OpenOnload on Amazon Linux 2023?

[jmgpeeters]

I am trying to build from source, using master, on Amazon Linux 2023 with kernel 6.1.25-37.47.amzn2023.x86_64. Has anyone tried this, or is there a better way of getting OpenOnload to work on these machines, e.g. through the tarballs?

I'm stuck at

make -C "$(mmaketool --toppath)/build/$(mmaketool --driverbuild)" ... ERROR: modpost: "pps_register_source" [/work/onload-master/build/x86_64_linux-6.1.25-37.47.amzn2023.x86_64/driver/linux_net/drivers/net/ethernet/sfc/sfc.ko] undefined! ERROR: modpost: "pps_event" [/work/onload-master/build/x86_64_linux-6.1.25-37.47.amzn2023.x86_64/driver/linux_net/drivers/net/ethernet/sfc/sfc.ko] undefined! ERROR: modpost: "pps_unregister_source" [/work/onload-master/build/x86_64_linux-6.1.25-37.47.amzn2023.x86_64/driver/linux_net/drivers/net/ethernet/sfc/sfc.ko] undefined! make[8]: *** [scripts/Makefile.modpost:126: /work/onload-master/build/x86_64_linux-6.1.25-37.47.amzn2023.x86_64/driver/linux_net/drivers/net/ethernet/sfc/Module.symvers] Error 1
On this kernel it seems CONFIG_PPS is unset. Not sure to what extent PPS is a requirement for OpenOnload to work, but other people seem to have gotten OpenOnload running on AWS EC2, so I presume there is a way.

[abower-amd]

Hi @jmgpeeters,

I am trying to build from source, using master

Could you confirm exactly which commit id you are using, please?
Thanks!

[jmgpeeters]

I downloaded a zipped up master from github yesterday, which corresponds to 097d57b.

Cheers!
-J

[abower-amd]

Thanks @jmgpeeters.

This is not something we have seen but you are welcome to see if you can help fix it! Onload includes a version of the sfc net driver for relevant (Solarflare) AMD Ethernet adapters under src/driver/linux_net. It is possible that there is an error either (1) in the kernel compat code for the sfc driver build or (2) in the way that the Onload build process initiates the build of the net driver component.

On the other hand if the underlying network adapter does not require this particular driver, then you can see these instructions for building without the sfc driver: https://github.com/Xilinx-CNS/onload#building-without-xilinx-nics-for-af_xdp-only .
The official OpenOnload release packages would not be suitable in your case because (a) these do not yet support kernel 6.1 and (b) these do not support AF_XDP.

[jmgpeeters]

Great, thanks, I'll have a crack at it.

[moscovium115]

@jmgpeeters were you able to get onload working on amazon linux?