Tomas, any idea where this documentation should go? Which guide, or should be it also in man pages?

Need specific details in order to add this. I don't have this information. Have marked NEEDINFO.

After discussion this should go to security guide

To enable padlock engine in openssl edit /etc/pki/tls/openssl.cnf and add

On the begging of the config file
  openssl_conf = openssl_init

Append on the end:
  [openssl_init]
  engines = openssl_engines
  [openssl_engines]
  padlock = padlock_engine
  [padlock_engine]
  default_algorithms = ALL
  dynamic_path = /usr/lib/openssl/engines/libpadlock.so
  init = 1

Note for 64but systems use:
dynamic_path = /usr/lib64/openssl/engines/libpadlock.so

To check if module enabled run (is should be listed)
# openssl engine -c -tt

To test openssl with padlock use:
# openssl speed aes-128-cbc

'openssl speed' without the hardware engine shows roughly 11MB/s throughput. 
With padlock turned on, it jumps to 98MB/s-1.9GB/s depending on block size. 
(yes, really, 1.9GB/s!)

To test openssh speed you can run a command like:
dd if=/dev/zero count=100 bs=1M | ssh -c aes128-cbc localhost "cat >/dev/null
Actual results:

openssh without padlock engine shows throughput roughly 5MB/s, with the padlock engine it should be significantly improoved

More information on VIA padlock engine is here:
http://www.logix.cz/michal/devel/padlock/

Scott is this info enough for you?
Jan, any other suggestions?

Miroslav, thank you for that information, it's appreciated. I've added details on this to the Security Guide, and changes will appear on next publish.