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author | Linus Torvalds <torvalds@linux-foundation.org> | 2022-05-27 18:06:49 -0700 |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2022-05-27 18:06:49 -0700 |
commit | d075c0c1be279c5f4c6688ac0442fff6494e56bc (patch) | |
tree | c3e3ab6b35139229ad0a5096ccea0c00eb97998b /arch/s390/crypto | |
parent | bf272460d744112bacd4c4d562592decbf0edf64 (diff) | |
parent | e4e62bbc6aba49a5edb3156ec65f6698ff37d228 (diff) | |
download | linux-d075c0c1be279c5f4c6688ac0442fff6494e56bc.tar.gz linux-d075c0c1be279c5f4c6688ac0442fff6494e56bc.tar.bz2 linux-d075c0c1be279c5f4c6688ac0442fff6494e56bc.zip |
Merge tag 'v5.19-p1' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6
Pull crypto updates from Herbert Xu:
"API:
- Test in-place en/decryption with two sglists in testmgr
- Fix process vs softirq race in cryptd
Algorithms:
- Add arm64 acceleration for sm4
- Add s390 acceleration for chacha20
Drivers:
- Add polarfire soc hwrng support in mpsf
- Add support for TI SoC AM62x in sa2ul
- Add support for ATSHA204 cryptochip in atmel-sha204a
- Add support for PRNG in caam
- Restore support for storage encryption in qat
- Restore support for storage encryption in hisilicon/sec"
* tag 'v5.19-p1' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6: (116 commits)
hwrng: omap3-rom - fix using wrong clk_disable() in omap_rom_rng_runtime_resume()
crypto: hisilicon/sec - delete the flag CRYPTO_ALG_ALLOCATES_MEMORY
crypto: qat - add support for 401xx devices
crypto: qat - re-enable registration of algorithms
crypto: qat - honor CRYPTO_TFM_REQ_MAY_SLEEP flag
crypto: qat - add param check for DH
crypto: qat - add param check for RSA
crypto: qat - remove dma_free_coherent() for DH
crypto: qat - remove dma_free_coherent() for RSA
crypto: qat - fix memory leak in RSA
crypto: qat - add backlog mechanism
crypto: qat - refactor submission logic
crypto: qat - use pre-allocated buffers in datapath
crypto: qat - set to zero DH parameters before free
crypto: s390 - add crypto library interface for ChaCha20
crypto: talitos - Uniform coding style with defined variable
crypto: octeontx2 - simplify the return expression of otx2_cpt_aead_cbc_aes_sha_setkey()
crypto: cryptd - Protect per-CPU resource by disabling BH.
crypto: sun8i-ce - do not fallback if cryptlen is less than sg length
crypto: sun8i-ce - rework debugging
...
Diffstat (limited to 'arch/s390/crypto')
-rw-r--r-- | arch/s390/crypto/chacha-glue.c | 34 |
1 files changed, 32 insertions, 2 deletions
diff --git a/arch/s390/crypto/chacha-glue.c b/arch/s390/crypto/chacha-glue.c index ccfff73e2c93..2ec51f339cec 100644 --- a/arch/s390/crypto/chacha-glue.c +++ b/arch/s390/crypto/chacha-glue.c @@ -62,6 +62,34 @@ static int chacha20_s390(struct skcipher_request *req) return rc; } +void hchacha_block_arch(const u32 *state, u32 *stream, int nrounds) +{ + /* TODO: implement hchacha_block_arch() in assembly */ + hchacha_block_generic(state, stream, nrounds); +} +EXPORT_SYMBOL(hchacha_block_arch); + +void chacha_init_arch(u32 *state, const u32 *key, const u8 *iv) +{ + chacha_init_generic(state, key, iv); +} +EXPORT_SYMBOL(chacha_init_arch); + +void chacha_crypt_arch(u32 *state, u8 *dst, const u8 *src, + unsigned int bytes, int nrounds) +{ + /* s390 chacha20 implementation has 20 rounds hard-coded, + * it cannot handle a block of data or less, but otherwise + * it can handle data of arbitrary size + */ + if (bytes <= CHACHA_BLOCK_SIZE || nrounds != 20) + chacha_crypt_generic(state, dst, src, bytes, nrounds); + else + chacha20_crypt_s390(state, dst, src, bytes, + &state[4], &state[12]); +} +EXPORT_SYMBOL(chacha_crypt_arch); + static struct skcipher_alg chacha_algs[] = { { .base.cra_name = "chacha20", @@ -83,12 +111,14 @@ static struct skcipher_alg chacha_algs[] = { static int __init chacha_mod_init(void) { - return crypto_register_skciphers(chacha_algs, ARRAY_SIZE(chacha_algs)); + return IS_REACHABLE(CONFIG_CRYPTO_SKCIPHER) ? + crypto_register_skciphers(chacha_algs, ARRAY_SIZE(chacha_algs)) : 0; } static void __exit chacha_mod_fini(void) { - crypto_unregister_skciphers(chacha_algs, ARRAY_SIZE(chacha_algs)); + if (IS_REACHABLE(CONFIG_CRYPTO_SKCIPHER)) + crypto_unregister_skciphers(chacha_algs, ARRAY_SIZE(chacha_algs)); } module_cpu_feature_match(VXRS, chacha_mod_init); |