[Bug 242747] geli: AMD Epyc+GELI not using Hardware AES

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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=242747

--- Comment #4 from Nick Evans <nevans at talkpoint.com> ---
Epyc:

aesni0: <AES-CBC,AES-CCM,AES-GCM,AES-ICM,AES-XTS,SHA1,SHA256>


Xeon:

aesni0: <AES-CBC,AES-XTS,AES-GCM,AES-ICM> on motherboard


Working on getting the GELI specific numbers. The long and short of it is if I
dd from all 8 geli providers to /dev/null I see the same general results.
20-25% idle on the Epyc box, and 60-70% idle on the Xeon with the Epyc pushing
slightly more from each drive (~280 MB/s Epyc vs 250MB/s Xeon). I was seeing
some weird performance results when doing dd tests against single drives or
when testing multiple drives when ZFS is in the mix. From benchmarks of the two
CPUs these systems should be nearly identical for most tasks. I'm going to sync
the -CURRENT versions now and review the setups again to be sure nothing
changed on me. I should have something in a few days.

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