Hi, Herbert, On Sun, 2009-06-21 at 21:51 +0800, Herbert Xu wrote: > Huang Ying <ying.huang@xxxxxxxxx> wrote: > > PCLMULQDQ is used to accelerate the most time-consuming part of GHASH, > > carry-less multiplication. More information about PCLMULQDQ can be > > found at: > > > > http://software.intel.com/en-us/articles/carry-less-multiplication-and-its-usage-for-computing-the-gcm-mode/ > > > > Because PCLMULQDQ changes XMM state, its usage must be enclosed with > > kernel_fpu_begin/end, which can be used only in process context, the > > acceleration is implemented as crypto_ahash. That is, request in soft > > IRQ context will be deferred to the cryptd kernel thread. > > > > Signed-off-by: Huang Ying <ying.huang@xxxxxxxxx> > > All good. > > So once we fully convert everything to shash, this series can > go in with the minor changes mentioned in this thread. What's your plan to convert everything to shash? For 2.6.32? How about the progress? What can I do to help? Best Regards, Huang Ying -- 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
