Commit 80247741 authored by Giovanni Cabiddu's avatar Giovanni Cabiddu Committed by Herbert Xu
Browse files

crypto: qat - lower priority for skcipher and aead algorithms 



Most kernel applications utilizing the crypto API operate synchronously
and on small buffer sizes, therefore do not benefit from QAT acceleration.

Reduce the priority of QAT implementations for both skcipher and aead
algorithms, allowing more suitable alternatives to be selected by default.

Signed-off-by: default avatarGiovanni Cabiddu <giovanni.cabiddu@intel.com>
Link: https://lore.kernel.org/all/20250613012357.GA3603104@google.com/


Cc: stable@vger.kernel.org
Acked-by: default avatarEric Biggers <ebiggers@kernel.org>
Signed-off-by: default avatarHerbert Xu <herbert@gondor.apana.org.au>
parent 1e2b7fcd

drivers/crypto/intel/qat/qat_common/qat_algs.c

+6 −6
Original line number Diff line number Diff line
@@ -1277,7 +1277,7 @@ static struct aead_alg qat_aeads[] = { { 
	.base = {

		.cra_name = "authenc(hmac(sha1),cbc(aes))",

		.cra_driver_name = "qat_aes_cbc_hmac_sha1",

		.cra_priority = 4001,

		.cra_priority = 100,

		.cra_flags = CRYPTO_ALG_ASYNC | CRYPTO_ALG_ALLOCATES_MEMORY,

		.cra_blocksize = AES_BLOCK_SIZE,

		.cra_ctxsize = sizeof(struct qat_alg_aead_ctx),
@@ -1294,7 +1294,7 @@ static struct aead_alg qat_aeads[] = { { 
	.base = {

		.cra_name = "authenc(hmac(sha256),cbc(aes))",

		.cra_driver_name = "qat_aes_cbc_hmac_sha256",

		.cra_priority = 4001,

		.cra_priority = 100,

		.cra_flags = CRYPTO_ALG_ASYNC | CRYPTO_ALG_ALLOCATES_MEMORY,

		.cra_blocksize = AES_BLOCK_SIZE,

		.cra_ctxsize = sizeof(struct qat_alg_aead_ctx),
@@ -1311,7 +1311,7 @@ static struct aead_alg qat_aeads[] = { { 
	.base = {

		.cra_name = "authenc(hmac(sha512),cbc(aes))",

		.cra_driver_name = "qat_aes_cbc_hmac_sha512",

		.cra_priority = 4001,

		.cra_priority = 100,

		.cra_flags = CRYPTO_ALG_ASYNC | CRYPTO_ALG_ALLOCATES_MEMORY,

		.cra_blocksize = AES_BLOCK_SIZE,

		.cra_ctxsize = sizeof(struct qat_alg_aead_ctx),
@@ -1329,7 +1329,7 @@ static struct aead_alg qat_aeads[] = { { 
static struct skcipher_alg qat_skciphers[] = { {

	.base.cra_name = "cbc(aes)",

	.base.cra_driver_name = "qat_aes_cbc",

	.base.cra_priority = 4001,

	.base.cra_priority = 100,

	.base.cra_flags = CRYPTO_ALG_ASYNC | CRYPTO_ALG_ALLOCATES_MEMORY,

	.base.cra_blocksize = AES_BLOCK_SIZE,

	.base.cra_ctxsize = sizeof(struct qat_alg_skcipher_ctx),
@@ -1347,7 +1347,7 @@ static struct skcipher_alg qat_skciphers[] = { { 
}, {

	.base.cra_name = "ctr(aes)",

	.base.cra_driver_name = "qat_aes_ctr",

	.base.cra_priority = 4001,

	.base.cra_priority = 100,

	.base.cra_flags = CRYPTO_ALG_ASYNC | CRYPTO_ALG_ALLOCATES_MEMORY,

	.base.cra_blocksize = 1,

	.base.cra_ctxsize = sizeof(struct qat_alg_skcipher_ctx),
@@ -1365,7 +1365,7 @@ static struct skcipher_alg qat_skciphers[] = { { 
}, {

	.base.cra_name = "xts(aes)",

	.base.cra_driver_name = "qat_aes_xts",

	.base.cra_priority = 4001,

	.base.cra_priority = 100,

	.base.cra_flags = CRYPTO_ALG_ASYNC | CRYPTO_ALG_NEED_FALLBACK |

			  CRYPTO_ALG_ALLOCATES_MEMORY,

	.base.cra_blocksize = AES_BLOCK_SIZE,