This patch fixes a bug that is triggered when cts(cbc(aes)) is used with
nx-crypto driver on input larger than 32 bytes.

The chaining value from co-processor was not being saved. This value is
needed because it is used as the IV by cts(cbc(aes)).
Signed-off-by: NFionnuala Gunter <fin@linux.vnet.ibm.com>
Reviewed-by: NMarcelo Cerri <mhcerri@linux.vnet.ibm.com>
Signed-off-by: NHerbert Xu <herbert@gondor.apana.org.au>

The co-processor has several limits regarding the length of
scatter/gather lists and the total number of bytes in it. These limits
are available in the device tree, as following:

 - "ibm,max-sg-len": maximum number of bytes of each scatter/gather
   list.

 - "ibm,max-sync-cop": used for synchronous operations, it is an array
   of structures that contains information regarding the limits that
   must be considered for each mode and operation. The most important
   limits in it are:
   	- The total number of bytes that a scatter/gather list can hold.
	- The maximum number of elements that a scatter/gather list can
	  have.

This patch updates the NX driver to perform several hyper calls if
needed in order to always respect the length limits for scatter/gather
lists.
Reviewed-by: NFionnuala Gunter <fin@linux.vnet.ibm.com>
Reviewed-by: NJoel Schopp <jschopp@linux.vnet.ibm.com>
Reviewed-by: NJoy Latten <jmlatten@linux.vnet.ibm.com>
Signed-off-by: NMarcelo Cerri <mhcerri@linux.vnet.ibm.com>
Signed-off-by: NHerbert Xu <herbert@gondor.apana.org.au>

The co-processor receives data to be hashed through scatter/gather lists
pointing to physical addresses. When a vmalloc'ed data is given, the
driver must calculate the physical address to each page of the data.

However the current version of it just calculates the physical address
once and keeps incrementing it even when a page boundary is crossed.
This patch fixes this behaviour.
Reviewed-by: NFionnuala Gunter <fin@linux.vnet.ibm.com>
Reviewed-by: NJoel Schopp <jschopp@linux.vnet.ibm.com>
Reviewed-by: NJoy Latten <jmlatten@linux.vnet.ibm.com>
Signed-off-by: NMarcelo Cerri <mhcerri@linux.vnet.ibm.com>
Signed-off-by: NHerbert Xu <herbert@gondor.apana.org.au>

Fixes a race on driver init with registering algorithms where the
driver status flag wasn't being set before self testing started.

  Added the cra_alignmask field for CBC and ECB modes.

  Fixed a bug in GCM where AES block size was being used instead of
authsize.

  Removed use of blkcipher_walk routines for scatterlist processing.
Corner cases in the code prevent us from processing an entire
scatterlist at a time and walking the buffers in block sized chunks
turns out to be unecessary anyway.

  Fixed off-by-one error in saving off extra data in the sha code.

  Fixed accounting error for number of bytes processed in the sha code.
Signed-off-by: NKent Yoder <key@linux.vnet.ibm.com>
Signed-off-by: NBenjamin Herrenschmidt <benh@kernel.crashing.org>

CONFIG_HOTPLUG is going away as an option.  As a result, the __dev*
markings need to be removed.

This change removes the use of __devinit, __devexit_p, __devinitdata,
and __devexit from these drivers.

Based on patches originally written by Bill Pemberton, but redone by me
in order to handle some of the coding style issues better, by hand.

Cc: Bill Pemberton <wfp5p@virginia.edu>
Cc: Herbert Xu <herbert@gondor.apana.org.au>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Kent Yoder <key@linux.vnet.ibm.com>
Cc: Jamie Iles <jamie@jamieiles.com>
Cc: Kim Phillips <kim.phillips@freescale.com>
Cc: Shengzhou Liu <Shengzhou.Liu@freescale.com>
Cc: Alex Porosanu <alexandru.porosanu@freescale.com>
Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>

This patch moves the notification chain for updates to the device tree
from the powerpc/pseries code to the base OF code. This makes this
functionality available to all architectures.

Additionally the notification chain is updated to allow notifications
for property add/remove/update. To make this work a pointer to a new
struct (of_prop_reconfig) is passed to the routines in the notification chain.
The of_prop_reconfig property contains a pointer to the node containing the
property and a pointer to the property itself. In the case of property
updates, the property pointer refers to the new property.
Signed-off-by: NNathan Fontenot <nfont@linux.vnet.ibm.com>
Acked-by: NRob Herring <rob.herring@calxeda.com>
Acked-by: NGrant Likely <grant.likely@secretlab.ca>
Signed-off-by: NBenjamin Herrenschmidt <benh@kernel.crashing.org>

phys_to_abs() is a nop, don't use it.

virt_to_abs() is just a wrapper around __pa(), call __pa() directly.
Signed-off-by: NMichael Ellerman <michael@ellerman.id.au>
Signed-off-by: NBenjamin Herrenschmidt <benh@kernel.crashing.org>

virt_to_abs() is just a wrapper around __pa(), use __pa() directly.

We should be including <asm/page.h> to get __pa(). abs_addr.h will be
removed shortly so drop that.

We were getting of.h via abs_addr.h so we need to include that directly.

Having done all that, clean up the ordering of the includes.
Signed-off-by: NMichael Ellerman <michael@ellerman.id.au>
Acked-by: NSeth Jennings <sjenning@linux.vnet.ibm.com>
Signed-off-by: NHerbert Xu <herbert@gondor.apana.org.au>

This patch adds the driver for interacting with the 842
compression accelerator on IBM Power7+ systems.

The device is a child of the Platform Facilities Option (PFO)
and shows up as a child of the IBM VIO bus.

The compression/decompression API takes the same arguments
as existing compression methods like lzo and deflate.  The 842
hardware operates on 4K hardware pages and the driver breaks up
input on 4K boundaries to submit it to the hardware accelerator.
Signed-off-by: NRobert Jennings <rcj@linux.vnet.ibm.com>
Signed-off-by: NSeth Jennings <sjenning@linux.vnet.ibm.com>
Signed-off-by: NHerbert Xu <herbert@gondor.apana.org.au>

This patch creates a new submenu for the NX cryptographic
hardware accelerator and breaks the NX options into their own
Kconfig file under drivers/crypto/nx/Kconfig.

This will permit additional NX functionality to be easily
and more cleanly added in the future without touching
drivers/crypto/Makefile|Kconfig.
Signed-off-by: NSeth Jennings <sjenning@linux.vnet.ibm.com>
Signed-off-by: NHerbert Xu <herbert@gondor.apana.org.au>

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: NJussi Kivilinna <jussi.kivilinna@mbnet.fi>
Acked-by: NKent Yoder <key@linux.vnet.ibm.com>
Acked-by: NVladimir Zapolskiy <vladimir_zapolskiy@mentor.com>
Signed-off-by: NHerbert Xu <herbert@gondor.apana.org.au>

These files support configuring and building the nx device driver.
Signed-off-by: NKent Yoder <key@linux.vnet.ibm.com>
Signed-off-by: NBenjamin Herrenschmidt <benh@kernel.crashing.org>

These routines add debugfs files supporting the Power7+ in-Nest encryption
accelerator driver.
Signed-off-by: NKent Yoder <key@linux.vnet.ibm.com>
Signed-off-by: NBenjamin Herrenschmidt <benh@kernel.crashing.org>

These routines add support for SHA-512 hashing on the Power7+ CPU's
in-Nest accelerator driver.
Signed-off-by: NKent Yoder <key@linux.vnet.ibm.com>
Signed-off-by: NBenjamin Herrenschmidt <benh@kernel.crashing.org>

These routines add support for SHA-256 hashing on the Power7+ CPU's
in-Nest accelerator driver.
Signed-off-by: NKent Yoder <key@linux.vnet.ibm.com>
Signed-off-by: NBenjamin Herrenschmidt <benh@kernel.crashing.org>

These routines add support for AES in XCBC mode on the Power7+ CPU's
in-Nest accelerator driver.
Signed-off-by: NKent Yoder <key@linux.vnet.ibm.com>
Signed-off-by: NBenjamin Herrenschmidt <benh@kernel.crashing.org>

These routines add support for AES in GCM mode on the Power7+ CPU's
in-Nest accelerator driver.
Signed-off-by: NKent Yoder <key@linux.vnet.ibm.com>
Signed-off-by: NBenjamin Herrenschmidt <benh@kernel.crashing.org>

These routines add support for AES in ECB mode on the Power7+ CPU's
in-Nest accelerator driver.
Signed-off-by: NKent Yoder <key@linux.vnet.ibm.com>
Signed-off-by: NBenjamin Herrenschmidt <benh@kernel.crashing.org>

These routines add support for AES in CTR mode on the Power7+ CPU's
in-Nest accelerator driver.
Signed-off-by: NKent Yoder <key@linux.vnet.ibm.com>
Signed-off-by: NBenjamin Herrenschmidt <benh@kernel.crashing.org>

These routines add support for AES in CCM mode on the Power7+ CPU's
in-Nest accelerator driver.
Signed-off-by: NKent Yoder <key@linux.vnet.ibm.com>
Signed-off-by: NBenjamin Herrenschmidt <benh@kernel.crashing.org>

These routines add support for AES in CBC mode on the Power7+ CPU's
in-Nest accelerator driver.
Signed-off-by: NKent Yoder <key@linux.vnet.ibm.com>
Signed-off-by: NBenjamin Herrenschmidt <benh@kernel.crashing.org>

These routines add the base device driver code supporting the Power7+
in-Nest encryption accelerator (nx) device.
Signed-off-by: NKent Yoder <key@linux.vnet.ibm.com>
Signed-off-by: NBenjamin Herrenschmidt <benh@kernel.crashing.org>