On Tue, 23 Aug 2005 20:12:12 +0400
Evgeniy Polyakov <[EMAIL PROTECTED]> wrote:

> On Tue, Aug 23, 2005 at 06:40:42PM +0300, Ronen Shitrit ([EMAIL PROTECTED]) 
> wrote:
> > Hi
> > 
> > The device I'm planning to use can support synchronous encryption, but
> > Isn't any device can do it, by polling the device till it complete?
> > Won't it be a waste of time, waiting for the HW accelerator to complete
> > processing,
> > While other tasks can use the CPU?
> 
> Sure.
> I mean VIA/Freescale like processing - it does not support asynchronous
> processing, but instead doing crypto operations like original CPU
> instructions.
> 
fyi, Freescale's SEC crypto engine is asynchronous to the core, i.e. the core 
CPU is free during crypto processing.  

Currently, I see no point in porting the existing tfm crypto api to a freescale 
device, except perhaps in preparation/anticipation for Herbert's async mods.  
If you're porting to a Freescale device for use with IPSec, you'd want an API 
to provide single-pass, e.g. encrypt-and-hash operations, which the Freescale 
device supports natively.  I believe OCF supports this.

Kim
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