patch to improve AES-NI performance

[Ollivier Robert]

According to John-Mark Gurney on Thu, Aug 22, 2013 at 01:20:27PM -0700:
> I have developed a patch to improve AES-NI performance.  If you took the
> AES-XTS algorithm into userland (no cryptodev or geli usage), these
> changes improve the performance over 10x in my tests (from ~150MB/sec to
> over 2GB/sec).  In tests of geli on gnop, the performance improvement is
> more moderate, around 4x due to overhead in other parts of the system.

Thanks a lot for this patch.  Now, looking at it in the stable/9 context, I can see that pjd did not merge (as he said at the time of commit) r226839 & r226839.  Is there any objection to merge these two (and possibly 247061 as well -- copyright update)?

I ask that for two reasons, these two revisions are speeding up AES-NI quite a bit and they are required for using jmg's patch.

I'll be testing all this in the next few days on my new AES-NI enabled machine.

-- 
Ollivier ROBERT -=- FreeBSD: The Power to Serve! -=- roberto at keltia.net
In memoriam to Ondine, our 2nd child: http://ondine.keltia.net/