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crypto: x86/sha256 - implement ->digest for sha256 

Implement a ->digest function for sha256-ssse3, sha256-avx, sha256-avx2,
and sha256-ni.  This improves the performance of crypto_shash_digest()
with these algorithms by reducing the number of indirect calls that are
made.

For now, don't bother with this for sha224, since sha224 is rarely used.

Signed-off-by: Eric Biggers <ebiggers@google.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
This commit is contained in:
Eric Biggers 2023-10-09 01:19:00 -07:00 committed by Herbert Xu
parent 1efcbf0eff
commit fdcac2ddc7
1 changed files with 32 additions and 0 deletions
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32
arch/x86/crypto/sha256_ssse3_glue.c
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@ -107,12 +107,20 @@ static int sha256_ssse3_final(struct shash_desc *desc, u8 *out)
return sha256_ssse3_finup(desc, NULL, 0, out);
}
static int sha256_ssse3_digest(struct shash_desc *desc, const u8 *data,
unsigned int len, u8 *out)
{
return sha256_base_init(desc) ?:
sha256_ssse3_finup(desc, data, len, out);
}
static struct shash_alg sha256_ssse3_algs[] = { {
.digestsize = SHA256_DIGEST_SIZE,
.init = sha256_base_init,
.update = sha256_ssse3_update,
.final = sha256_ssse3_final,
.finup = sha256_ssse3_finup,
.digest = sha256_ssse3_digest,
.descsize = sizeof(struct sha256_state),
.base = {
.cra_name = "sha256",
@ -172,12 +180,20 @@ static int sha256_avx_final(struct shash_desc *desc, u8 *out)
return sha256_avx_finup(desc, NULL, 0, out);
}
static int sha256_avx_digest(struct shash_desc *desc, const u8 *data,
unsigned int len, u8 *out)
{
return sha256_base_init(desc) ?:
sha256_avx_finup(desc, data, len, out);
}
static struct shash_alg sha256_avx_algs[] = { {
.digestsize = SHA256_DIGEST_SIZE,
.init = sha256_base_init,
.update = sha256_avx_update,
.final = sha256_avx_final,
.finup = sha256_avx_finup,
.digest = sha256_avx_digest,
.descsize = sizeof(struct sha256_state),
.base = {
.cra_name = "sha256",
@ -248,12 +264,20 @@ static int sha256_avx2_final(struct shash_desc *desc, u8 *out)
return sha256_avx2_finup(desc, NULL, 0, out);
}
static int sha256_avx2_digest(struct shash_desc *desc, const u8 *data,
unsigned int len, u8 *out)
{
return sha256_base_init(desc) ?:
sha256_avx2_finup(desc, data, len, out);
}
static struct shash_alg sha256_avx2_algs[] = { {
.digestsize = SHA256_DIGEST_SIZE,
.init = sha256_base_init,
.update = sha256_avx2_update,
.final = sha256_avx2_final,
.finup = sha256_avx2_finup,
.digest = sha256_avx2_digest,
.descsize = sizeof(struct sha256_state),
.base = {
.cra_name = "sha256",
@ -323,12 +347,20 @@ static int sha256_ni_final(struct shash_desc *desc, u8 *out)
return sha256_ni_finup(desc, NULL, 0, out);
}
static int sha256_ni_digest(struct shash_desc *desc, const u8 *data,
unsigned int len, u8 *out)
{
return sha256_base_init(desc) ?:
sha256_ni_finup(desc, data, len, out);
}
static struct shash_alg sha256_ni_algs[] = { {
.digestsize = SHA256_DIGEST_SIZE,
.init = sha256_base_init,
.update = sha256_ni_update,
.final = sha256_ni_final,
.finup = sha256_ni_finup,
.digest = sha256_ni_digest,
.descsize = sizeof(struct sha256_state),
.base = {
.cra_name = "sha256",