[Bug 1608450] Re: expose layer2, hwchecksumming, buffer_count network-hardware options

[ChristianEhrhardt]

While wishlist priority, reopening until we really "decided" to drop it.

Let me know if you still wait on something like further examples or
such, otherwise I'd keep it around until implemented or explicitly
dropped.

** Changed in: nplan (Ubuntu)
       Status: Expired => New

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Title:
  expose layer2, hwchecksumming, buffer_count network-hardware options

Status in nplan package in Ubuntu:
  New

Bug description:
  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.

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