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freescale ppc sec2加解密单元驱动

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SEC2.x Security Core Device Driver - Release Notes
version 1.2 27-Jan-2005 sec
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Overview:

Release 1.2 contains mostly minor changes to release 1.1.1 based on acceptance
feedback from the prior rev

* Removed unnecessary non-padding IPSec request types. Maintained typedef-ed
  names for reverse compatibility

* Fixed up a series of obsolete names

* Expanded DPD dumper functionality, fixed some minor issues with header
  dumps

* Fixed cleanup issues with driver unload

* Fixed the incorrect location of the global inhibit bit for PQ2

* Expanded AES descriptor types


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Limitations:

* This release has been tested on version 2.4.27 of the linux kernel for 
  PowerPC, using an ELDK 2.1.0 distribution. No other kernel versions
  have been verified.
  
* Driver has been built with GCC 2.95.3 (from linux-i686) and a WindRiver
  issue of GCC 3.3. No other compilers were used.
  
* Driver has been verified on an MPC8555E processor, using an ADS8560 rev A.
  No other processors have been verified at this time.
  
* Driver has only been tested as a loadable module; inclusion into a kernel
  image has not been verified.
  
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Known Issues:

* Scripts for creating the device inodes must be performed manually at this
  time. As delivered, the driver requests a dynamic major number upon
  module initialization. It is up to the operator to manually create a
  new char device inode named /dev/sec2, with the dynamically assigned
  major number. The minor number should remain zero.

* Driver is not instance-safe, only one instance can run.

* Support for new SEC2.1 (MPC8548) requests exist, but are as-yet untested.

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Release history:

* 1.1.1 (16 December 2004) - removed some unnecessary diagnostics
* 1.1.0 (05 December 2004) -  First LinuxPPC release
* 1.0 (June 2004) - First issue of driver after adaptation from SEC1.0.
VxWorks-only release, tested on MPC8555E only

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