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Date:      Mon, 26 Oct 2020 20:00:08 -0700
From:      Neel Chauhan <neel@neelc.org>
To:        Mark Johnston <markj@freebsd.org>
Cc:        freebsd-hackers@freebsd.org
Subject:   Re: QAT driver
Message-ID:  <723fbd7326df42ce30cd5e361db9c736@neelc.org>
In-Reply-To: <20201026200059.GA66299@raichu>
References:  <20201026200059.GA66299@raichu>

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Hi,

This is great news for me with my home HPE ML110 G10/Xeon 4108 server.

However, I will not be able to test this patch unless it can get 
backported to 12.1 or 12.2 once it's out, and I don't expect backporting 
to happen.

I have one question about this: will I be able to use this to accelerate 
OpenSSL? Is additional code needed?

I use the mentioned HPE server for Tor and Tor is very crypto-heavy (yet 
singlethreaded).

I believe the official Intel drivers allow OpenSSL acceleration, but I'd 
prefer to avoid out-of-band drivers whether possible (ports/src is 
fine).

-Neel

===

https://www.neelc.org/

On 2020-10-26 13:00, Mark Johnston wrote:
> Hi,
> 
> I did a port of NetBSD's qat(4) to FreeBSD for pfSense, and made some
> enhancements.  This provides an opencrypto-compatible driver for 
> Intel's
> QuickAssist devices, aimed mainly to be used with IPSec.  A review is
> posted here for anyone interested in reviewing:
> https://reviews.freebsd.org/D26963
> 
> So far it's mostly been tested on an Atom C3000, where some ad-hoc
> testing with iperf3 shows ~20-30% improvements relative to aesni(4) and
> some reduction in CPU usage.  I've done some functional testing on a
> Xeon system with a 8950 adapter as well.  If anyone is interested in
> testing the driver, please send me email.  Some firmware images not
> included in the review above are required in order to test.  I plan to
> port it to stable/12 shortly.
> 
> Thanks,
> -Mark
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