Hi Laurent,I know it must be more complex, but it worked for our case so I wanted to share it anyway as we did not find support for this in latest git, but forgot to check mailing list.
With this small patch + some others in Linux kernel we were able to execute Intel XL710 network adapter NVM Update utility (nvmupdate64e) which is x86_64 only binary on aarch64 Linux platform and upgrade NIC firmware.
At least we can try if this works OK with Shu-Chun's patch as well. regards, Matevz