From owner-svn-src-head@freebsd.org  Mon Apr 13 04:32:21 2020
Return-Path: <owner-svn-src-head@freebsd.org>
Delivered-To: svn-src-head@mailman.nyi.freebsd.org
Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1])
 by mailman.nyi.freebsd.org (Postfix) with ESMTP id 690C72B2679;
 Mon, 13 Apr 2020 04:32:21 +0000 (UTC)
 (envelope-from danfe@freebsd.org)
Received: from freefall.freebsd.org (freefall.freebsd.org [96.47.72.132])
 (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits)
 server-signature RSA-PSS (4096 bits)
 client-signature RSA-PSS (4096 bits) client-digest SHA256)
 (Client CN "freefall.freebsd.org",
 Issuer "Let's Encrypt Authority X3" (verified OK))
 by mx1.freebsd.org (Postfix) with ESMTPS id 490wh52Bnxz44hL;
 Mon, 13 Apr 2020 04:32:21 +0000 (UTC)
 (envelope-from danfe@freebsd.org)
Received: by freefall.freebsd.org (Postfix, from userid 1033)
 id 22CDD1052C; Mon, 13 Apr 2020 04:32:21 +0000 (UTC)
Date: Mon, 13 Apr 2020 04:32:21 +0000
From: Alexey Dokuchaev <danfe@freebsd.org>
To: d@delphij.net
Cc: John Baldwin <jhb@freebsd.org>, src-committers@freebsd.org,
 svn-src-all@freebsd.org, svn-src-head@freebsd.org,
 Xin Li <delphij@delphij.net>
Subject: Re: svn commit: r359374 - in head: . share/man/man4 share/man/man7
 share/man/man9 sys/crypto/aesni sys/crypto/armv8 sys/crypto/blake2
 sys/crypto/ccp sys/crypto/via sys/dev/cesa sys/dev/cxgbe sys/dev/cx...
Message-ID: <20200413043221.GA60842@FreeBSD.org>
References: <202003271825.02RIPOmR010857@repo.freebsd.org>
 <9c343572-5bf6-7047-f435-8e3fcffa8f8e@delphij.net>
MIME-Version: 1.0
Content-Type: text/plain; charset=us-ascii
Content-Disposition: inline
In-Reply-To: <9c343572-5bf6-7047-f435-8e3fcffa8f8e@delphij.net>
X-BeenThere: svn-src-head@freebsd.org
X-Mailman-Version: 2.1.29
Precedence: list
List-Id: SVN commit messages for the src tree for head/-current
 <svn-src-head.freebsd.org>
List-Unsubscribe: <https://lists.freebsd.org/mailman/options/svn-src-head>,
 <mailto:svn-src-head-request@freebsd.org?subject=unsubscribe>
List-Archive: <http://lists.freebsd.org/pipermail/svn-src-head/>
List-Post: <mailto:svn-src-head@freebsd.org>
List-Help: <mailto:svn-src-head-request@freebsd.org?subject=help>
List-Subscribe: <https://lists.freebsd.org/mailman/listinfo/svn-src-head>,
 <mailto:svn-src-head-request@freebsd.org?subject=subscribe>
X-List-Received-Date: Mon, 13 Apr 2020 04:32:21 -0000

On Sun, Apr 12, 2020 at 01:08:49PM -0700, Xin Li via svn-src-all wrote:
> On 3/27/20 11:25 AM, John Baldwin wrote:
> >   - Drivers no longer register a list of supported algorithms. [...]
> 
> For user-visible interface, it seems like we are essentially treating
> "accelerated software" like AES-NI the same way of plain software.  For
> example, geom_eli would now say:
> 
> GEOM_ELI: Encryption: AES-XTS 128
> GEOM_ELI:     Crypto: software
> 
> Instead of:
> 
> GEOM_ELI: Encryption: AES-XTS 128
> GEOM_ELI:     Crypto: hardware
> 
> [...] and it's much easier for system administrators if we expose the
> fact that they are using some kind of acceleration than asking them to
> run DTrace etc. to find out.  Personally, I think it's probably better
> to change the notion to either "accelerated" (by either hardware or
> software) and "software"...

+1 for "accelerated" vs. "software".  For most users "accelerated" would
mean AES-NI (dedicated crypto cards are not as common), and since most
modern CPUs have those, not being able to easily distinguish between that
and "pure software" (unaccelerated) mode is rather frustrating.

./danfe