linux/include/crypto
Eric Biggers 2f1f34c1bf crypto: ahash - optimize performance when wrapping shash
The "ahash" API provides access to both CPU-based and hardware offload-
based implementations of hash algorithms.  Typically the former are
implemented as "shash" algorithms under the hood, while the latter are
implemented as "ahash" algorithms.  The "ahash" API provides access to
both.  Various kernel subsystems use the ahash API because they want to
support hashing hardware offload without using a separate API for it.

Yet, the common case is that a crypto accelerator is not actually being
used, and ahash is just wrapping a CPU-based shash algorithm.

This patch optimizes the ahash API for that common case by eliminating
the extra indirect call for each ahash operation on top of shash.

It also fixes the double-counting of crypto stats in this scenario
(though CONFIG_CRYPTO_STATS should *not* be enabled by anyone interested
in performance anyway...), and it eliminates redundant checking of
CRYPTO_TFM_NEED_KEY.  As a bonus, it also shrinks struct crypto_ahash.

Signed-off-by: Eric Biggers <ebiggers@google.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2023-10-27 18:04:30 +08:00
..
internal crypto: ahash - remove support for nonzero alignmask 2023-10-27 18:04:29 +08:00
acompress.h crypto: acomp - Count error stats differently 2023-03-14 17:06:42 +08:00
aead.h crypto: aead - Add crypto_has_aead 2023-09-20 13:15:29 +08:00
aes.h crypto: aes - helper function to validate key length for AES algorithms 2019-08-09 15:11:43 +10:00
akcipher.h crypto: akcipher - fix kernel-doc typos 2023-10-05 18:16:31 +08:00
algapi.h crypto: shash - remove crypto_shash_ctx_aligned() 2023-10-27 18:04:28 +08:00
arc4.h crypto: arc4 - refactor arc4 core code into separate library 2019-06-20 14:18:33 +08:00
aria.h crypto: Prepare to move crypto_tfm_ctx 2022-12-02 18:12:40 +08:00
authenc.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152 2019-05-30 11:26:32 -07:00
b128ops.h cyrpto/b128ops: Remove struct u128 2023-06-05 09:36:35 +02:00
blake2b.h crypto: api - Replace kernel.h with the necessary inclusions 2021-12-17 16:59:48 +11:00
blake2s.h lib/crypto: blake2s: move hmac construction into wireguard 2022-01-18 13:03:55 +01:00
blowfish.h
cast5.h
cast6.h crypto: remove CRYPTO_TFM_RES_BAD_KEY_LEN 2020-01-09 11:30:53 +08:00
cast_common.h
chacha20poly1305.h crypto: lib/chacha20poly1305 - Add missing function declaration 2020-07-16 21:49:04 +10:00
chacha.h random: early initialization of ChaCha constants 2022-01-07 00:25:25 +01:00
cryptd.h crypto: api - Replace kernel.h with the necessary inclusions 2021-12-17 16:59:48 +11:00
ctr.h crypto: ctr - add helper for performing a CTR encryption walk 2019-07-26 14:56:07 +10:00
curve25519.h crypto: lib/curve25519 - Move selftest prototype into header file 2020-11-20 14:45:33 +11:00
des.h crypto: des - remove now unused __des3_ede_setkey() 2019-08-22 14:57:33 +10:00
dh.h crypto: dh - split out deserialization code from crypto_dh_decode() 2022-03-03 10:47:50 +12:00
drbg.h crypto: drbg - reseed 'nopr' drbgs periodically from get_random_bytes() 2021-11-26 16:16:50 +11:00
ecc_curve.h crypto: ecc - add curve25519 params and expose them 2021-03-13 00:04:04 +11:00
ecdh.h Merge branch 'ecc' 2021-03-26 19:55:55 +11:00
engine.h crypto: engine - Make crypto_engine_exit() return void 2023-10-01 16:28:15 +08:00
gcm.h crypto: lib/aesgcm - Provide minimal library implementation 2022-11-11 18:14:59 +08:00
gf128mul.h mm, treewide: rename kzfree() to kfree_sensitive() 2020-08-07 11:33:22 -07:00
ghash.h crypto: ghash - add comment and improve help text 2019-07-27 21:08:38 +10:00
hash_info.h crypto: sha - split sha.h into sha1.h and sha2.h 2020-11-20 14:45:33 +11:00
hash.h crypto: ahash - optimize performance when wrapping shash 2023-10-27 18:04:30 +08:00
hmac.h
if_alg.h sock: Remove ->sendpage*() in favour of sendmsg(MSG_SPLICE_PAGES) 2023-06-24 15:50:13 -07:00
kdf_sp800108.h crypto: kdf - add SP800-108 counter key derivation function 2021-11-26 16:25:17 +11:00
kpp.h crypto: kpp - Count error stats differently 2023-03-14 17:06:42 +08:00
md5.h
nhpoly1305.h crypto: poly1305 - add new 32 and 64-bit generic versions 2020-01-16 15:18:12 +08:00
null.h
padlock.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152 2019-05-30 11:26:32 -07:00
pcrypt.h crypto: api - Replace kernel.h with the necessary inclusions 2021-12-17 16:59:48 +11:00
pkcs7.h PKCS#7: Introduce pkcs7_get_digest() 2019-08-05 18:40:19 -04:00
poly1305.h crypto: poly1305 - fix poly1305_core_setkey() declaration 2021-04-02 18:28:12 +11:00
polyval.h crypto: x86/polyval - Add PCLMULQDQ accelerated implementation of POLYVAL 2022-06-10 16:40:17 +08:00
public_key.h KEYS: DigitalSignature link restriction 2023-08-17 20:12:20 +00:00
rng.h crypto: rng - Count error stats differently 2023-03-14 17:06:42 +08:00
scatterwalk.h crypto: scatterwalk - use kmap_local() not kmap_atomic() 2022-12-30 22:56:27 +08:00
serpent.h crypto: x86 - Regularize glue function prototypes 2019-12-11 16:36:54 +08:00
sha1_base.h crypto: sha - split sha.h into sha1.h and sha2.h 2020-11-20 14:45:33 +11:00
sha1.h crypto: sha - split sha.h into sha1.h and sha2.h 2020-11-20 14:45:33 +11:00
sha2.h crypto: lib/sha256 - Remove redundant and unused sha224_update 2023-05-19 16:45:43 +08:00
sha3.h
sha256_base.h crypto: lib/sha256 - Use generic code from sha256_base 2023-05-19 16:45:43 +08:00
sha512_base.h crypto: sha - split sha.h into sha1.h and sha2.h 2020-11-20 14:45:33 +11:00
sig.h crypto: sig - fix kernel-doc typo 2023-10-05 18:16:31 +08:00
skcipher.h crypto: skcipher - Remove obsolete skcipher_alg helpers 2023-10-13 18:27:27 +08:00
sm2.h crypto: sm2 - Provide sm2_compute_z_digest when sm2 is disabled 2023-06-26 16:14:01 +08:00
sm3_base.h crypto: hash - Use memzero_explicit() for clearing state 2020-10-30 17:35:03 +11:00
sm3.h crypto: sm3 - make dependent on sm3 library 2022-01-28 16:51:11 +11:00
sm4.h crypto: sm4 - export sm4 constant arrays 2022-04-08 16:12:46 +08:00
streebog.h
twofish.h crypto: remove CRYPTO_TFM_RES_BAD_KEY_LEN 2020-01-09 11:30:53 +08:00
utils.h crypto: lib/utils - Move utilities into new header 2023-03-31 17:50:09 +08:00
xts.h crypto: xts - drop xts_check_key() 2023-01-06 17:15:47 +08:00