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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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