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 - To unsubscribe from this list: send the line "unsubscribe linux-crypto" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html
