Public bug reported:

Some network HW configurations like wake-on-lan, mtu and such are already 
exposed.
Certainly not all that ethtool can handle, and none of the attributes that not 
even ethtool can handle.

In the System z world there are a few HW attributes that are rather common to 
be changed.
In particular:
- layer2 (required to be set correctly for networking to work at all)
- hwchecksumming (performance)
- buffer_count (performance)

Look at chzdev of package s390-tools for more background and how it is
currently done via udev rules.

For s390x - If implemented IBM would have to work with us in a way that the 
passing of the ephemeral state netplan provides to a system later on that gets 
(re-)configured via chzdev works as expected.
But I guess for now the bug is for the "lower network-HW options" in general 
and not only s390x.

** Affects: nplan (Ubuntu)
     Importance: Undecided
         Status: New

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https://bugs.launchpad.net/bugs/1608450

Title:
  expose (some) network-hardware options to netplan

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