Commit Graph

24 Commits

Author SHA1 Message Date
Sachin Kamat 49d30d3d5f crypto: geode-aes - Use module_pci_driver
module_pci_driver makes the code simpler by eliminating
module_init and module_exit calls.

Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2012-09-07 04:17:03 +08:00
Jussi Kivilinna e15aa3692d crypto: drivers - remove cra_list initialization
Initialization of cra_list is currently mixed, most ciphers initialize this
field and most shashes do not. Initialization however is not needed at all
since cra_list is initialized/overwritten in __crypto_register_alg() with
list_add(). Therefore perform cleanup to remove all unneeded initializations
of this field in 'crypto/drivers/'.

Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: linux-geode@lists.infradead.org
Cc: Michal Ludvig <michal@logix.cz>
Cc: Dmitry Kasatkin <dmitry.kasatkin@nokia.com>
Cc: Varun Wadekar <vwadekar@nvidia.com>
Cc: Eric Bénard <eric@eukrea.com>
Signed-off-by: Jussi Kivilinna <jussi.kivilinna@mbnet.fi>
Acked-by: Kent Yoder <key@linux.vnet.ibm.com>
Acked-by: Vladimir Zapolskiy <vladimir_zapolskiy@mentor.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2012-08-01 17:47:28 +08:00
Nikos Mavrogiannopoulos d912bb7677 crypto: Add CRYPTO_ALG_KERN_DRIVER_ONLY flag
The added CRYPTO_ALG_KERN_DRIVER_ONLY indicates whether a cipher
is only available via a kernel driver. If the cipher implementation
might be available by using an instruction set or by porting the
kernel code, then it must not be set.

Signed-off-by: Nikos Mavrogiannopoulos <nmav@gnutls.org>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2012-01-13 16:38:40 +11:00
Peter Huewe 1fb1defbb0 crypto: geode_aes - Convert pci_table entries to PCI_VDEVICE (if PCI_ANY_ID is used)
This patch converts pci_table entries, where .subvendor=PCI_ANY_ID and
.subdevice=PCI_ANY_ID, .class=0 and .class_mask=0, to use the
PCI_VDEVICE macro, and thus improves readability.

Signed-off-by: Peter Huewe <peterhuewe@gmx.de>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2010-07-19 13:50:21 +08:00
Chihau Chau 99700716a9 crypto: geode-aes - Fix some code style issues
This fixes some code style issues like:

- Use #include <linux/io.h> instead of <asm/io.h> and #include
  <linux/delay.h> instead of <asm/delay.h>

- Use "foo *bar" instead of "foo * bar"

- Add a space after the for or while sentence and before the open
  parenthesis '('

- Don't use assignments in a if condition

Signed-off-by: Chihau Chau <chihau@gmail.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2010-04-19 21:02:41 +08:00
Roel Kluin e054f16471 crypto: geode-aes - Fix cip/blk confusion
a crypto_cipher cip member was set where a crypto_cipher blk members
should have been.

Signed-off-by: Roel Kluin <roel.kluin@gmail.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2010-02-04 11:39:13 +11:00
Roel Kluin faad98f296 crypto: geode-aes - access .cip instead of .blk in cipher mode
The fallback code in cipher mode touch the union fallback.blk instead
of fallback.cip. This is wrong because we use the cipher and not the
blockcipher. This did not show any side effects yet because both types /
structs contain the same element right now.

Signed-off-by: Roel Kluin <roel.kluin@gmail.com>
Signed-off-by: Sebastian Andrzej Siewior <sebastian@breakpoint.cc>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2010-01-08 14:19:21 +11:00
Adrian Bunk f17922bc75 [CRYPTO] geode: Add __dev{init,exit} annotations
This patch adds __dev{init,exit} annotations.

Signed-off-by: Adrian Bunk <bunk@kernel.org>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2008-01-11 08:16:38 +11:00
Sebastian Siewior fdc520aa69 [CRYPTO] geode: Use correct encrypt/decrypt function in fallback
crypto_blkcipher_decrypt is wrong because it does not care about
the IV.

Signed-off-by: Sebastian Siewior <sebastian@breakpoint.cc>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2008-01-11 08:16:36 +11:00
Sebastian Siewior d2456c6623 [CRYPTO] geode: do not copy the IV too often
There is no reason to keep the IV in the private structre. Instead keep
just a pointer to make the patch smaller :)
This also remove a few memcpy()s

Signed-off-by: Sebastian Siewior <sebastian@breakpoint.cc>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2008-01-11 08:16:26 +11:00
Sebastian Siewior cd7c3bfe54 [CRYPTO] geode: Add fallback for unsupported modes
The Geode AES crypto engine supports only 128 bit long key. This
patch adds fallback for other key sizes which are required by the
AES standard.

Signed-off-by: Sebastian Siewior <sebastian@breakpoint.cc>
Acked-by: Jordan Crouse <jordan.crouse@amd.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2008-01-11 08:16:11 +11:00
Sebastian Siewior b7a30da61a [CRYPTO] geode: move defines into a headerfile
This patch moves macros in geode-aes.c into geode-aes.h.

Signed-off-by: Sebastian Siewior <sebastian@breakpoint.cc>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2008-01-11 08:16:05 +11:00
Sebastian Siewior 1f4e477376 [CRYPTO] geode: relax in busy loop and care about return value
The code waits in a busy loop until the hardware finishes the encryption
or decryption process. This wants a cpu_relax() :)
The busy loop finishes either if the encryption is done or if the counter
is zero. If the latter is true than the hardware failed. Since this
should not happen, leave sith a BUG().

Signed-off-by: Sebastian Siewior <sebastian@breakpoint.cc>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2008-01-11 08:16:05 +11:00
Sebastian Siewior 2d506d4fa1 [CRYPTO] geode: use consistent IV copy
It is enough if the IV is copied before and after the while loop.
With DM-Crypt is seems not be required to save the IV after encrytion
because a new one is used in the request (dunno about other users).
It is not save to load the IV within while loop and not save afterwards
because we mill end up with the wrong IV if the request goes consists
of more than one page.

Signed-off-by: Sebastian Siewior <sebastian@breakpoint.cc>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2008-01-11 08:16:04 +11:00
Sebastian Siewior 89e1265431 [CRYPTO] aes: Move common defines into a header file
This three defines are used in all AES related hardware.

Signed-off-by: Sebastian Siewior <sebastian@breakpoint.cc>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2008-01-11 08:16:04 +11:00
Sebastian Siewior f1901f1fc7 [CRYPTO] geode: remove alias
alias isn't required because the module provides PCI ids.

Signed-off-by: Sebastian Siewior <sebastian@breakpoint.cc>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2008-01-11 08:16:03 +11:00
Sebastian Siewior 2e21630ddc [CRYPTO] geode: Fix not inplace encryption
Currently the Geode AES module fails to encrypt or decrypt if
the coherent bits are not set what is currently the case if the
encryption does not occur inplace. However, the encryption works
on my Geode machine _only_ if the coherent bits are always set.

Signed-off-by: Sebastian Siewior <sebastian@breakpoint.cc>
Acked-by: Jordan Crouse <jordan.crouse@amd.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2007-11-11 19:03:48 +08:00
Sebastian Siewior f8246af005 [CRYPTO] aes: Rename aes to aes-generic
Loading the crypto algorithm by the alias instead of by module directly
has the advantage that all possible implementations of this algorithm
are loaded automatically and the crypto API can choose the best one
depending on its priority.

Additionally it ensures that the generic implementation as well as the
HW driver (if available) is loaded in case the HW driver needs the
generic version as fallback in corner cases.

Signed-off-by: Sebastian Siewior <sebastian@breakpoint.cc>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2007-10-10 16:55:49 -07:00
Jordan Crouse 761e784673 [CRYPTO] geode: Fix in-place operations and set key
Allow in-place crypto operations.  Also remove the coherent user flag
(we use it automagically now), and by default use the user written
key rather then the HW hidden key - this makes crypto just work without
any special considerations, and thats OK, since its our only usage
model.

Signed-off-by: Jordan Crouse <jordan.crouse@amd.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2007-05-24 21:23:24 +10:00
Alexey Dobriyan 5efee174f8 [PATCH] geode-aes: use unsigned long for spin_lock_irqsave
Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-03-06 09:30:25 -08:00
Tim Schmielau cd354f1ae7 [PATCH] remove many unneeded #includes of sched.h
After Al Viro (finally) succeeded in removing the sched.h #include in module.h
recently, it makes sense again to remove other superfluous sched.h includes.
There are quite a lot of files which include it but don't actually need
anything defined in there.  Presumably these includes were once needed for
macros that used to live in sched.h, but moved to other header files in the
course of cleaning it up.

To ease the pain, this time I did not fiddle with any header files and only
removed #includes from .c-files, which tend to cause less trouble.

Compile tested against 2.6.20-rc2 and 2.6.20-rc2-mm2 (with offsets) on alpha,
arm, i386, ia64, mips, powerpc, and x86_64 with allnoconfig, defconfig,
allmodconfig, and allyesconfig as well as a few randconfigs on x86_64 and all
configs in arch/arm/configs on arm.  I also checked that no new warnings were
introduced by the patch (actually, some warnings are removed that were emitted
by unnecessarily included header files).

Signed-off-by: Tim Schmielau <tim@physik3.uni-rostock.de>
Acked-by: Russell King <rmk+kernel@arm.linux.org.uk>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-02-14 08:09:54 -08:00
Richard Knutsson 09cb914f09 [CRYPTO] geode: Convert pci_module_init() to pci_register_driver()
Replace uses of the obsolete pci_module_init function.

Signed-off-by: Richard Knutsson <ricknu-0@student.ltu.se>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2007-02-07 09:21:02 +11:00
Adrian Bunk ab7827059a [CRYPTO] geode: Make needlessly global geode_aes_crypt() static
On Tue, Nov 14, 2006 at 01:41:25AM -0800, Andrew Morton wrote:
>...
> Changes since 2.6.19-rc5-mm2:
>...
>  git-cryptodev.patch
>...
>  git trees
>...

This patch makes the needlessly global geode_aes_crypt() static.

Signed-off-by: Adrian Bunk <bunk@stusta.de>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2006-12-06 18:38:53 -08:00
Jordan Crouse 9fe757b0cf [PATCH] crypto: Add support for the Geode LX AES hardware
Add a driver to support the AES hardware on the Geode LX processor.

Signed-off-by: Jordan Crouse <jordan.crouse@amd.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2006-12-06 18:38:46 -08:00