Re: f3ed935de e1000e: Initial support for KabeLake

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On 3/14/19 8:36 PM, Jeff Kirsher wrote:
On Thu, 2019-03-14 at 16:25 -0700, Greg KH wrote:
On Thu, Mar 14, 2019 at 03:53:29PM -0700, Jeff Kirsher wrote:
On Thu, 2019-03-14 at 14:54 -0700, Greg KH wrote:
On Thu, Mar 14, 2019 at 02:17:34PM -0700, Jeff Kirsher wrote:
On Thu, 2019-03-14 at 13:08 -0700, Greg KH wrote:
On Thu, Mar 14, 2019 at 02:34:17PM -0500, Pat Riehecky wrote:
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id=9cd34b3a1

The additional hardware support would be helpful in the 4.4
long
term tree.

e1000e: Initial support for KabeLake
i219 (4) and i219 (5) are the next LOM generations that
will be
available on the next Intel platform (KabeLake).
This patch provides the initial support for the devices.

Signed-off-by: Raanan Avargil <raanan.avargil@xxxxxxxxx>
Tested-by: Aaron Brown <aaron.f.brown@xxxxxxxxx>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@xxxxxxxxx>
Does this patch work properly on 4.4.y for this hardware with
just
this
patch?

Also, always cc: the authors of the patch when asking for
them to
be
added to stable, to get their opinion/objection if needed.
I am fine with commit 9cd34b3a1 "e1000e: Initial support for
KabeLake"
being backported.  It is just the addition a device ids.
Great, thanks!

But, the patch does not apply to 4.4.y at all.  Pat, can you make
up
a
backport that I can apply and send it to us?
I see that you do not have this commit on the 4.4.y tree:

f3ed935de059 e1000e: initial support for i219-LM (3)

Which is causing the issues that Greg is seeing.  This commit is
not a
"simple" add new device id type of patch.  This commit would be a
hard
requirement for the other commit to be applied.

I am fine with both being applied, but this second commit adds code
for
properly accessing the NVM for e1000_pch_spt devices (which all the
i219 devices are).
Yeah, that's not worth it.  Just use 4.9, or really 4.14, or even
more
realistic, 4.19 instead.  Especially for any system that might be
using
this type of network card, you should NOT be using 4.4 or 4.9 there
at
the moment anyway.

Or you can download our out-of-tree driver from
http://e1000.sourceforge.net project, that driver has all the necessary
kernel compat code to run the driver on older kernels like 4.4.

Thanks for the review!

I'll pull in the out of tree driver for my use case.

Pat

--
Pat Riehecky

Fermi National Accelerator Laboratory
www.fnal.gov
www.scientificlinux.org




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