I'm checking why this patch were dropped during all these years.
** Changed in: linux (Ubuntu)
Importance: Undecided => Wishlist
** Changed in: linux (Ubuntu)
Assignee: (unassigned) => You-Sheng Yang (vicamo)
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https://bugs.launchpad.net/bugs/2102113
Title:
intel i219-LM on Dell 5420 with bad NVM checksum doesn't work with
e1000e driver
Status in linux package in Ubuntu:
Confirmed
Bug description:
I work with the company that has obtained 300 used Dell Latitude 5420
laptops. They ware running Windows previously without problems.
However under Ubuntu (22.04; 24.10) there is a problem with Intel
i219-LM (13) NIC. Kernel module e1000e on load performs NVM checksum
validation and fails. Tested sample suggests about 70% of laptops are
affected.
I modified e1000e module to bypass checksum and after that NIC works
as it supposed to. I tried to correct NVM using ethtool and intel
provided tool but it seems Dell locked writing to NVM on these
laptops.
I searched internet and this is not the first time this problem has
occurred. There even used to be a patch adding module parameter to
force checksum bypass (https://patchwork.ozlabs.org/project/ubuntu-
kernel/patch/[email protected]/#470600). I wonder why
ubuntu kernel is no longer shipped with this patch? Can you add this
patch back or similar workaround?
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