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crypto: talitos - implement cra_priority 

SEC1 doesn't have IPSEC_ESP descriptor type but it is able to perform
IPSEC using HMAC_SNOOP_NO_AFEU, which is also existing on SEC2
In order to be able to define descriptors templates for SEC1 without
breaking SEC2+, we have to give lower priority to HMAC_SNOOP_NO_AFEU
so that SEC2+ selects IPSEC_ESP and not HMAC_SNOOP_NO_AFEU which is
less performant.

This is done by adding a priority field in the template. If the field
is 0, we use the default priority, otherwise we used the one in the
field.

Signed-off-by: Christophe Leroy <christophe.leroy@c-s.fr>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
This commit is contained in:
LEROY Christophe 2016-06-06 13:20:44 +02:00 committed by Herbert Xu
parent e968b49f4d
commit b00577639d
1 changed files with 5 additions and 1 deletions
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6
drivers/crypto/talitos.c
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@ -2120,6 +2120,7 @@ static int ahash_setkey(struct crypto_ahash *tfm, const u8 *key,
struct talitos_alg_template {
u32 type;
u32 priority;
union {
struct crypto_alg crypto;
struct ahash_alg hash;
@ -2897,7 +2898,10 @@ static struct talitos_crypto_alg *talitos_alg_alloc(struct device *dev,
}
alg->cra_module = THIS_MODULE;
alg->cra_priority = TALITOS_CRA_PRIORITY;
if (t_alg->algt.priority)
alg->cra_priority = t_alg->algt.priority;
else
alg->cra_priority = TALITOS_CRA_PRIORITY;
alg->cra_alignmask = 0;
alg->cra_ctxsize = sizeof(struct talitos_ctx);
alg->cra_flags |= CRYPTO_ALG_KERN_DRIVER_ONLY;