Re: [Ocf-linux-users] OCF driver for Marvell Kirkwood (88F6xxx) Processors

[Flaig, P. <Pat...@bd...>]

Hi David,

I tried to do some measurements with the Feroceon driver and run into some problems.
It seems the hardware support is not fully working.

I configured OCF to use the CRYPTOSOFT driver and run a little test application, everything works fine.
But when I disabled the CRYPTOSOFT driver and enabled the FEROCEON driver, my test failed with an "ioctl(CIOCGSESSION): Invalid argument" error.

---
/* Get crypto session for AES128 */
  sess.cipher = CRYPTO_AES_CBC;
  sess.keylen = KEY_SIZE;
  sess.key = key;
  if (ioctl(cfd, CIOCGSESSION, &sess)) {
	  perror("ioctl(CIOCGSESSION)");
	  return 1;
  }
---

For me this looks like the driver is not loaded.
Did I forget to configure something?

How will OCF handle algorithms that are not supported by the hardware, will the OCF switch to the kernel algorithm?
Do I have to enable the CRYPTOSOFT in combination with the hardware driver?

Thank you again for your answer(s).

Regards

Patrick
-----Original Message-----
From: Flaig, Patrick 
Sent: Wednesday, August 11, 2010 6:07 PM
To: 'David McCullough'
Cc: ocf...@li...
Subject: RE: [Ocf-linux-users] OCF driver for Marvell Kirkwood (88F6xxx) Processors

Hi David,

Thanks a lot, the additional lines in the Makefile let me compile the Feroceon driver.

I've now compiled the OCF module and the driver directly into the kernel.

I think I've now an understanding problem, how to configure OCF the right way.
Do I have to configure the cryptographic API as well, with all the algorithms I want?
How can I make sure that, if I have selected AES for example, the hardware acceleration is used?
/proc/crypto is only showing module: kernel.

Patrick