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    • Ben Nizette's avatar
      UIO: Implement a UIO interface for the SMX Cryptengine · b54f2863
      Ben Nizette authored
      
      
      This patch implements a UIO interface for the SMX Cryptengine.
      
      The Cryptengine found on the Nias Digital SMX board is best suited
      for a UIO interface.  It is not wired in to the cryptographic API
      as the engine handles it's own keys, algorithms, everything.  All
      that we know about is that if there's room in the buffer, you can
      write data to it and when there's data ready, you read it out again.
      
      There isn't necessarily even any direct correlation between data
      going in and data coming out again, the engine may consume or
      generate data all on its own.
      
      This driver is for proprietary hardware but we're always told to
      submit the drivers anyway; here you are.  :-)
      
      This is version 4 of this patch and addresses all issues raised by
      Hans-Jürgen Koch and Paul Mundt in their reviews.  Slightly altered
      is Paul's suggestion to use DRV_NAME and DRV_VERSION as the UIO
      version and name.  While at the moment they are the same, there
      is no reason for them to stay that way.  Nevertheless we now at
      least provide a MODULE_VERSION macro to keep modinfo happy.
      
      Signed-off-by: default avatarBen Nizette <bn@niasdigital.com>
      Acked-by: default avatarPaul Mundt <lethal@linux-sh.org>
      Signed-off-by: default avatarHans J Koch <hjk@linutronix.de>
      Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@suse.de>
      b54f2863
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