Add support kmod-i40e for Intel x710 10-40 Gigabit Ethernet

Maybe add support kmod-i40e for Intel x710 10-40 Gigabit Ethernet

Supported

Can you explain how to have it working with latest openwrt version?
I do not succeed to have "Intel Corporation Ethernet Controller X710 for 10GBASE-T (rev 02)" working with 19.07.7 .

kmod-iavf and kmod-i40e seem unavailliable in the repositories , at least for x86_64

On Snapshot I could install kmod-iavf and kmod-i40
but I get

[    8.627154] i40e: Intel(R) Ethernet Connection XL710 Network Driver - version 2.8.20-k
[    8.637861] i40e: Copyright (c) 2013 - 2019 Intel Corporation.
[    8.657964] i40e 0000:08:00.0: unidentified MAC or BLANK NVM: -11
[    8.666954] i40e: probe of 0000:08:00.0 failed with error -11
[    8.686459] i40e 0000:08:00.1: unidentified MAC or BLANK NVM: -11
[    8.695432] i40e: probe of 0000:08:00.1 failed with error -11

This bug seems specific to kernel 5.4, but not sure if there is any workaround out there:

So Still not working, any idea?