kernel/linux.git/drivers/crypto/ccp, branch v3.15.2

crypto: ccp - Account for CCP backlog processing

2014-02-26T21:57:01+00:00

When the crypto layer is able to queue up a command for processing by the CCP on the initial call to ccp_crypto_enqueue_request and the CCP returns -EBUSY, then if the backlog flag is not set the command needs to be freed and not added to the active command list. Signed-off-by: Tom Lendacky Signed-off-by: Herbert Xu

crypto: ccp - Invoke context callback when there is a backlog error

2014-02-26T21:57:00+00:00

Invoke the callback routine associated with the crypto context if an error is encountered sending the command to the CCP during backlog processing. This is needed to free any resources used by the command. Signed-off-by: Tom Lendacky Signed-off-by: Herbert Xu

crypto: ccp - Prevent a possible lost CCP command request

2014-02-26T21:57:00+00:00

If a CCP command has been queued for processing at the crypto layer then, when dequeueing it for processing, the "can backlog" flag must be set so that the request isn't lost if the CCP backlog queue limit is reached. Signed-off-by: Tom Lendacky Signed-off-by: Herbert Xu

crypto: ccp - Perform completion callbacks using a tasklet

2014-02-09T01:59:24+00:00

Change from scheduling work to scheduling a tasklet to perform the callback operations. Signed-off-by: Tom Lendacky Signed-off-by: Herbert Xu

crypto: ccp - Use a single queue for proper ordering of tfm requests

2014-02-09T01:59:24+00:00

Move to a single queue to serialize requests within a tfm. When testing using IPSec with a large number of network connections the per cpu tfm queuing logic was not working properly. Signed-off-by: Tom Lendacky 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 - Allow for selective disablement of crypto API algorithms

2014-02-09T01:59:15+00:00

Introduce module parameters that allow for disabling of a crypto algorithm by not registering the algorithm with the crypto API. Signed-off-by: Tom Lendacky Signed-off-by: Herbert Xu

crypto: ccp - Fix ccp_run_passthru_cmd dma variable assignments

2014-02-09T01:59:14+00:00

There are some suspicious looking lines of code in the new ccp driver, including one that assigns a variable to itself, and another that overwrites a previous assignment. This may have been a cut-and-paste error where 'src' was forgotten to be changed to 'dst'. I have no hardware to test this, so this is untested. Signed-off-by: Dave Jones Acked-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 - Cleanup hash invocation calls

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

Cleanup the ahash digest invocations to check the init return code and make use of the finup routine. Signed-off-by: Tom Lendacky Signed-off-by: Herbert Xu