Re: [ptxdist] [RFC/PATCH 0/3] cryptodev

[Robert Schwebel <r.schwebel@pengutronix.de>]

On Mon, Jul 03, 2017 at 12:03:26AM +0200, Alexander Dahl wrote:
> On Sun, Jul 02, 2017 at 10:30:30PM +0200, Clemens Gruber wrote:
> > I am wondering about the performance improvements when using the
> > cryptodev openssl engine. There must be some cost for the context
> > switches, but this is probably outweighed by the offloading.
> > Did you for example run openssl speed aes-128-cbc before and after?
> > And on what platform did you try it?
> 
> fli4l [1] uses cryptodev and the experience there is, it depends on
> the platform. Some platforms benefit a lot, especially for OpenVPN,
> others not so much. Depends on what the CPU offers and how fast the
> system in general is.

Do you know why the module is not in mainline? Is there a discussion
where the kernel maintainers motivate why they don't like this solution?

rsc
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