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crypto: engine - Add KPP Support to Crypto Engine

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Add KPP support to the crypto engine queue manager, so that it can be
used to simplify the logic of KPP device drivers as done for other
crypto drivers.

Signed-off-by: Prabhjot Khurana <prabhjot.khurana@intel.com>
Signed-off-by: Daniele Alessandrelli <daniele.alessandrelli@intel.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
This commit is contained in:
Prabhjot Khurana 2021-10-20 11:35:34 +01:00 committed by Herbert Xu
parent cad439fc04
commit 1730c5aa3b
3 changed files with 35 additions and 0 deletions
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4
Documentation/crypto/crypto_engine.rst
View File

@ -69,6 +69,8 @@ the crypto engine via one of:
* crypto_transfer_hash_request_to_engine()
* crypto_transfer_kpp_request_to_engine()
* crypto_transfer_skcipher_request_to_engine()
At the end of the request process, a call to one of the following functions is needed:
@ -79,4 +81,6 @@ At the end of the request process, a call to one of the following functions is n
* crypto_finalize_hash_request()
* crypto_finalize_kpp_request()
* crypto_finalize_skcipher_request()

26
crypto/crypto_engine.c
View File

@ -327,6 +327,19 @@ int crypto_transfer_hash_request_to_engine(struct crypto_engine *engine,
}
EXPORT_SYMBOL_GPL(crypto_transfer_hash_request_to_engine);
/**
* crypto_transfer_kpp_request_to_engine - transfer one kpp_request to list
* into the engine queue
* @engine: the hardware engine
* @req: the request need to be listed into the engine queue
*/
int crypto_transfer_kpp_request_to_engine(struct crypto_engine *engine,
struct kpp_request *req)
{
return crypto_transfer_request_to_engine(engine, &req->base);
}
EXPORT_SYMBOL_GPL(crypto_transfer_kpp_request_to_engine);
/**
* crypto_transfer_skcipher_request_to_engine - transfer one skcipher_request
* to list into the engine queue
@ -382,6 +395,19 @@ void crypto_finalize_hash_request(struct crypto_engine *engine,
}
EXPORT_SYMBOL_GPL(crypto_finalize_hash_request);
/**
* crypto_finalize_kpp_request - finalize one kpp_request if the request is done
* @engine: the hardware engine
* @req: the request need to be finalized
* @err: error number
*/
void crypto_finalize_kpp_request(struct crypto_engine *engine,
struct kpp_request *req, int err)
{
return crypto_finalize_request(engine, &req->base, err);
}
EXPORT_SYMBOL_GPL(crypto_finalize_kpp_request);
/**
* crypto_finalize_skcipher_request - finalize one skcipher_request if
* the request is done

5
include/crypto/engine.h
View File

@ -16,6 +16,7 @@
#include <crypto/akcipher.h>
#include <crypto/hash.h>
#include <crypto/skcipher.h>
#include <crypto/kpp.h>
#define ENGINE_NAME_LEN 30
/*
@ -96,6 +97,8 @@ int crypto_transfer_akcipher_request_to_engine(struct crypto_engine *engine,
struct akcipher_request *req);
int crypto_transfer_hash_request_to_engine(struct crypto_engine *engine,
struct ahash_request *req);
int crypto_transfer_kpp_request_to_engine(struct crypto_engine *engine,
struct kpp_request *req);
int crypto_transfer_skcipher_request_to_engine(struct crypto_engine *engine,
struct skcipher_request *req);
void crypto_finalize_aead_request(struct crypto_engine *engine,
@ -104,6 +107,8 @@ void crypto_finalize_akcipher_request(struct crypto_engine *engine,
struct akcipher_request *req, int err);
void crypto_finalize_hash_request(struct crypto_engine *engine,
struct ahash_request *req, int err);
void crypto_finalize_kpp_request(struct crypto_engine *engine,
struct kpp_request *req, int err);
void crypto_finalize_skcipher_request(struct crypto_engine *engine,
struct skcipher_request *req, int err);
int crypto_engine_start(struct crypto_engine *engine);