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Date: Tue, 15 Dec 2015 14:00:21 +0100
From: LABBE Corentin <clabbe.montjoie@...il.com>
To: davem@...emloft.net, herbert@...dor.apana.org.au
Cc: LABBE Corentin <clabbe.montjoie@...il.com>,
linux-crypto@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: [PATCH v3 2/4] crypto: niagara: Use precalculated hash from headers
Precalculated hash for empty message are now present in hash headers.
This patch just use them.
Signed-off-by: LABBE Corentin <clabbe.montjoie@...il.com>
---
drivers/crypto/Kconfig | 2 ++
drivers/crypto/n2_core.c | 33 ++++++---------------------------
2 files changed, 8 insertions(+), 27 deletions(-)
diff --git a/drivers/crypto/Kconfig b/drivers/crypto/Kconfig
index b9ec295..dea754b 100644
--- a/drivers/crypto/Kconfig
+++ b/drivers/crypto/Kconfig
@@ -194,6 +194,8 @@ config CRYPTO_DEV_NIAGARA2
select CRYPTO_DES
select CRYPTO_BLKCIPHER
select CRYPTO_HASH
+ select CRYPTO_MD5
+ select CRYPTO_SHA1
depends on SPARC64
help
Each core of a Niagara2 processor contains a Stream
diff --git a/drivers/crypto/n2_core.c b/drivers/crypto/n2_core.c
index 5450880..febbd5e 100644
--- a/drivers/crypto/n2_core.c
+++ b/drivers/crypto/n2_core.c
@@ -241,7 +241,7 @@ static inline bool n2_should_run_async(struct spu_queue *qp, int this_len)
struct n2_ahash_alg {
struct list_head entry;
- const char *hash_zero;
+ const u8 *hash_zero;
const u32 *hash_init;
u8 hw_op_hashsz;
u8 digest_size;
@@ -1267,7 +1267,7 @@ static LIST_HEAD(cipher_algs);
struct n2_hash_tmpl {
const char *name;
- const char *hash_zero;
+ const u8 *hash_zero;
const u32 *hash_init;
u8 hw_op_hashsz;
u8 digest_size;
@@ -1276,40 +1276,19 @@ struct n2_hash_tmpl {
u8 hmac_type;
};
-static const char md5_zero[MD5_DIGEST_SIZE] = {
- 0xd4, 0x1d, 0x8c, 0xd9, 0x8f, 0x00, 0xb2, 0x04,
- 0xe9, 0x80, 0x09, 0x98, 0xec, 0xf8, 0x42, 0x7e,
-};
static const u32 md5_init[MD5_HASH_WORDS] = {
cpu_to_le32(MD5_H0),
cpu_to_le32(MD5_H1),
cpu_to_le32(MD5_H2),
cpu_to_le32(MD5_H3),
};
-static const char sha1_zero[SHA1_DIGEST_SIZE] = {
- 0xda, 0x39, 0xa3, 0xee, 0x5e, 0x6b, 0x4b, 0x0d, 0x32,
- 0x55, 0xbf, 0xef, 0x95, 0x60, 0x18, 0x90, 0xaf, 0xd8,
- 0x07, 0x09
-};
static const u32 sha1_init[SHA1_DIGEST_SIZE / 4] = {
SHA1_H0, SHA1_H1, SHA1_H2, SHA1_H3, SHA1_H4,
};
-static const char sha256_zero[SHA256_DIGEST_SIZE] = {
- 0xe3, 0xb0, 0xc4, 0x42, 0x98, 0xfc, 0x1c, 0x14, 0x9a,
- 0xfb, 0xf4, 0xc8, 0x99, 0x6f, 0xb9, 0x24, 0x27, 0xae,
- 0x41, 0xe4, 0x64, 0x9b, 0x93, 0x4c, 0xa4, 0x95, 0x99,
- 0x1b, 0x78, 0x52, 0xb8, 0x55
-};
static const u32 sha256_init[SHA256_DIGEST_SIZE / 4] = {
SHA256_H0, SHA256_H1, SHA256_H2, SHA256_H3,
SHA256_H4, SHA256_H5, SHA256_H6, SHA256_H7,
};
-static const char sha224_zero[SHA224_DIGEST_SIZE] = {
- 0xd1, 0x4a, 0x02, 0x8c, 0x2a, 0x3a, 0x2b, 0xc9, 0x47,
- 0x61, 0x02, 0xbb, 0x28, 0x82, 0x34, 0xc4, 0x15, 0xa2,
- 0xb0, 0x1f, 0x82, 0x8e, 0xa6, 0x2a, 0xc5, 0xb3, 0xe4,
- 0x2f
-};
static const u32 sha224_init[SHA256_DIGEST_SIZE / 4] = {
SHA224_H0, SHA224_H1, SHA224_H2, SHA224_H3,
SHA224_H4, SHA224_H5, SHA224_H6, SHA224_H7,
@@ -1317,7 +1296,7 @@ static const u32 sha224_init[SHA256_DIGEST_SIZE / 4] = {
static const struct n2_hash_tmpl hash_tmpls[] = {
{ .name = "md5",
- .hash_zero = md5_zero,
+ .hash_zero = md5_zero_message_hash,
.hash_init = md5_init,
.auth_type = AUTH_TYPE_MD5,
.hmac_type = AUTH_TYPE_HMAC_MD5,
@@ -1325,7 +1304,7 @@ static const struct n2_hash_tmpl hash_tmpls[] = {
.digest_size = MD5_DIGEST_SIZE,
.block_size = MD5_HMAC_BLOCK_SIZE },
{ .name = "sha1",
- .hash_zero = sha1_zero,
+ .hash_zero = sha1_zero_message_hash,
.hash_init = sha1_init,
.auth_type = AUTH_TYPE_SHA1,
.hmac_type = AUTH_TYPE_HMAC_SHA1,
@@ -1333,7 +1312,7 @@ static const struct n2_hash_tmpl hash_tmpls[] = {
.digest_size = SHA1_DIGEST_SIZE,
.block_size = SHA1_BLOCK_SIZE },
{ .name = "sha256",
- .hash_zero = sha256_zero,
+ .hash_zero = sha256_zero_message_hash,
.hash_init = sha256_init,
.auth_type = AUTH_TYPE_SHA256,
.hmac_type = AUTH_TYPE_HMAC_SHA256,
@@ -1341,7 +1320,7 @@ static const struct n2_hash_tmpl hash_tmpls[] = {
.digest_size = SHA256_DIGEST_SIZE,
.block_size = SHA256_BLOCK_SIZE },
{ .name = "sha224",
- .hash_zero = sha224_zero,
+ .hash_zero = sha224_zero_message_hash,
.hash_init = sha224_init,
.auth_type = AUTH_TYPE_SHA256,
.hmac_type = AUTH_TYPE_RESERVED,
--
2.4.10
--
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