Asynchronous Crypto API interface

Hi Crypto friends

1)I see in kernel sources- gingerbread/kernel/crypto/cryptd.c,
Asynchronous Crypto API interface is developed for both Block Cipher
and Hash Algorithms.

But in the "TO DO List" mentioned in the link http://gondor.apana.org.au/~herbert/crypto/
,I see "Asynchronous hash support." need to be implemented
(and not yet implemented.)

Could you please clarify, whether Asynchronous crypto API interface is
developed for both Block Cipher and Hash Algorithms or not?

2)Our requirement is Asynchronous Crypto API interface for our
Hardware crypto device( designed by us)

I see the below quotes in the link "http://www.mjmwired.net/kernel/
Documentation/crypto/api-intro.txt

47 Support for hardware crypto devices via an asynchronous interface
is
48 under development.

I apologize,What does the above quotes mean?

Do current Asynchronous Crypto API interface do not support hardware
crypto devices ?

Thanks in advance
Tilak