On Mon, Dec 15, 2008 at 04:21:06PM +1100, Herbert Xu wrote: > > > a. Do not touch SSE state in soft_irq > > b. Disable/restore soft_irq in kernel_fpu_begin/kernel_fpu_end > > c. Use a per-CPU data structure to save kernel FPU state during > > soft_irq. > > > > The mothod a is used in patch. > > Could you run the tcrypt speed test on this and measure the > difference between the native AES vs. the fallback? Depending > on the difference I think we'd want to consider b) or c). Here's another option d. When we're in interrupt context, schedule a task to perform the encryption asynchronously. Cheers, -- Visit Openswan at http://www.openswan.org/ Email: Herbert Xu ~{PmV>HI~} <herbert@xxxxxxxxxxxxxxxxxxx> Home Page: http://gondor.apana.org.au/~herbert/ PGP Key: http://gondor.apana.org.au/~herbert/pubkey.txt -- To unsubscribe from this list: send the line "unsubscribe linux-crypto" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
