linux-toradex.git/include/linux/ccp.h, branch v4.11-rc3

crypto: ccp - fix typo "CPP"

2016-10-25T03:08:28+00:00

The abbreviation for Cryptographic Coprocessor is "CCP".

Signed-off-by: Paul Bolle 
Acked-by: Gary R Hook 
Signed-off-by: Herbert Xu

crypto: ccp - Let a v5 CCP provide the same function as v3

2016-08-09T10:47:16+00:00

Enable equivalent function on a v5 CCP. Add support for a
version 5 CCP which enables AES/XTS/SHA services. Also,
more work on the data structures to virtualize
functionality.

Signed-off-by: Gary R Hook 
Signed-off-by: Herbert Xu

crypto: ccp - Register the CCP as a DMA resource

2016-04-20T09:50:06+00:00

The CCP has the ability to provide DMA services to the
kernel using pass-through mode of the device. Register
these services as general purpose DMA channels.

Changes since v2:
- Add a Signed-off-by

Changes since v1:
- Allocate memory for a string in ccp_dmaengine_register
- Ensure register/unregister calls are properly ordered
- Verified all changed files are listed in the diffstat
- Undo some superfluous changes
- Added a cc:

Signed-off-by: Gary R Hook 
Signed-off-by: Herbert Xu

crypto: ccp - CCP versioning support

2016-03-11T13:19:16+00:00

Future hardware may introduce new algorithms wherein the
driver will need to manage resources for different versions
of the cryptographic coprocessor. This precursor patch
determines the version of the available device, and marks
and registers algorithms accordingly. A structure is added
which manages the version-specific data.

Signed-off-by: Gary R Hook 
Acked-by: Tom Lendacky 
Signed-off-by: Herbert Xu

crypto: ccp - Check for CCP before registering crypto algs

2014-09-24T06:23:34+00:00

If the ccp is built as a built-in module, then ccp-crypto (whether
built as a module or a built-in module) will be able to load and
it will register its crypto algorithms.  If the system does not have
a CCP this will result in -ENODEV being returned whenever a command
is attempted to be queued by the registered crypto algorithms.

Add an API, ccp_present(), that checks for the presence of a CCP
on the system.  The ccp-crypto module can use this to determine if it
should register it's crypto alogorithms.

Cc: stable@vger.kernel.org
Reported-by: Scot Doyle 
Signed-off-by: Tom Lendacky 
Tested-by: Scot Doyle 
Signed-off-by: Herbert Xu

crypto: ccp - Move HMAC calculation down to ccp ops file

2014-02-09T01:59:23+00:00

Move the support to perform an HMAC calculation into
the CCP operations file.  This eliminates the need to
perform a synchronous SHA operation used to calculate
the HMAC.

Signed-off-by: Tom Lendacky 
Signed-off-by: Herbert Xu

crypto: ccp - CCP device enabled/disabled changes

2014-01-15T03:33:40+00:00

The CCP cannot be hot-plugged so it will either be there
or it won't.  Do not allow the driver to stay loaded if the
CCP does not successfully initialize.

Provide stub routines in the ccp.h file that return -ENODEV
if the CCP has not been configured in the build.

Signed-off-by: Tom Lendacky 
Signed-off-by: Herbert Xu

crypto: ccp - Change data length declarations to u64

2014-01-15T03:33:39+00:00

When performing a hash operation if the amount of data buffered and a
request at or near the maximum data length is received then the length
calcuation could wrap causing an error in executing the hash operation.
Fix this by using a u64 type for the input and output data lengths in
all CCP operations.

Signed-off-by: Tom Lendacky 
Signed-off-by: Herbert Xu

crypto: ccp - CCP device driver and interface support

2013-12-05T13:28:37+00:00

These routines provide the device driver support for the AMD
Cryptographic Coprocessor (CCP).

Signed-off-by: Tom Lendacky 
Signed-off-by: Herbert Xu