netdev - Re: [PATCH net-next v4 18/20] crypto: port ChaCha20 to Zinc

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Message-ID: <CAHmME9orPSvUH3dmnBvRfy_TEBoLO5VNHEMXaMo9a1WGP-rcXg@mail.gmail.com>
Date:   Mon, 17 Sep 2018 06:54:26 +0200
From:   "Jason A. Donenfeld" <Jason@...c4.com>
To:     Martin Willi <martin@...ongswan.org>
Cc:     LKML <linux-kernel@...r.kernel.org>,
        Netdev <netdev@...r.kernel.org>,
        Linux Crypto Mailing List <linux-crypto@...r.kernel.org>,
        David Miller <davem@...emloft.net>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Samuel Neves <sneves@....uc.pt>,
        Andrew Lutomirski <luto@...nel.org>,
        Jean-Philippe Aumasson <jeanphilippe.aumasson@...il.com>,
        Eric Biggers <ebiggers@...gle.com>
Subject: Re: [PATCH net-next v4 18/20] crypto: port ChaCha20 to Zinc

Hey Martin,

Thanks for running these and pointing this out. I've replicated the
results with tcrypt and fixed some issues, and the next patch series
should be a lot closer to what you'd expect, instead of the regression
you noticed. Most of the slowdown happened as a result of over-eager
XSAVEs, which I've now rectified. I'm still working on a few other
facets of it, but I believe v5 will be more satisfactory when posted.

Regards,
Jason