Re: Intel QAT 8970 accel card on ARM Ampere Server

[Patrick Robb <probb@iol.unh.edu>]

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Hi Juraj,

Thanks for the guidance. The kernel version in use on the Ampere server
currently is 5.4.0-155-generic. The tags for the 22.04 repo you suggested
only include 5.15 kernel versions, so I can't checkout to the
currently running kernel per your recommendation. I figure the idea behind
checking out to the kernel currently running is to maintain the current
state as much as possible, and ensure the currently running kernel config
could be re-used. If I instead clone the 20.04/focal repo I can checkout to
5.4.0-155, but the diffs you shared do not cleanly apply.

On the other hand, from looking directly at the files on Jammy/5.15[1], it
looks like the qat diffs (https://lkml.org/lkml/2022/6/17/328) have already
reached that kernel version. If indeed applying these diffs is not needed
in this case, is there any reason why I shouldn't just re-build the kernel
from here? I don't want to do this (and necessarily advance the kernel
version from 5.4 to 5.15) without asking you since I don't know what the
negative implications of this action may be, if any.

[1] https://git.launchpad.net/~ubuntu-kernel-stable/+git/jammy/

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