diff options
| -rw-r--r-- | arch/arm64/crypto/crct10dif-ce-glue.c | 54 |
1 files changed, 42 insertions, 12 deletions
diff --git a/arch/arm64/crypto/crct10dif-ce-glue.c b/arch/arm64/crypto/crct10dif-ce-glue.c index 567c24f3d224..242757cc6da9 100644 --- a/arch/arm64/crypto/crct10dif-ce-glue.c +++ b/arch/arm64/crypto/crct10dif-ce-glue.c @@ -25,8 +25,6 @@ asmlinkage u16 crc_t10dif_pmull_p64(u16 init_crc, const u8 buf[], u64 len); asmlinkage u16 crc_t10dif_pmull_p8(u16 init_crc, const u8 buf[], u64 len); -static u16 (*crc_t10dif_pmull)(u16 init_crc, const u8 buf[], u64 len); - static int crct10dif_init(struct shash_desc *desc) { u16 *crc = shash_desc_ctx(desc); @@ -35,14 +33,30 @@ static int crct10dif_init(struct shash_desc *desc) return 0; } -static int crct10dif_update(struct shash_desc *desc, const u8 *data, +static int crct10dif_update_pmull_p8(struct shash_desc *desc, const u8 *data, + unsigned int length) +{ + u16 *crc = shash_desc_ctx(desc); + + if (length >= CRC_T10DIF_PMULL_CHUNK_SIZE && may_use_simd()) { + kernel_neon_begin(); + *crc = crc_t10dif_pmull_p8(*crc, data, length); + kernel_neon_end(); + } else { + *crc = crc_t10dif_generic(*crc, data, length); + } + + return 0; +} + +static int crct10dif_update_pmull_p64(struct shash_desc *desc, const u8 *data, unsigned int length) { u16 *crc = shash_desc_ctx(desc); if (length >= CRC_T10DIF_PMULL_CHUNK_SIZE && may_use_simd()) { kernel_neon_begin(); - *crc = crc_t10dif_pmull(*crc, data, length); + *crc = crc_t10dif_pmull_p64(*crc, data, length); kernel_neon_end(); } else { *crc = crc_t10dif_generic(*crc, data, length); @@ -59,10 +73,22 @@ static int crct10dif_final(struct shash_desc *desc, u8 *out) return 0; } -static struct shash_alg crc_t10dif_alg = { +static struct shash_alg crc_t10dif_alg[] = {{ .digestsize = CRC_T10DIF_DIGEST_SIZE, .init = crct10dif_init, - .update = crct10dif_update, + .update = crct10dif_update_pmull_p8, + .final = crct10dif_final, + .descsize = CRC_T10DIF_DIGEST_SIZE, + + .base.cra_name = "crct10dif", + .base.cra_driver_name = "crct10dif-arm64-neon", + .base.cra_priority = 100, + .base.cra_blocksize = CRC_T10DIF_BLOCK_SIZE, + .base.cra_module = THIS_MODULE, +}, { + .digestsize = CRC_T10DIF_DIGEST_SIZE, + .init = crct10dif_init, + .update = crct10dif_update_pmull_p64, .final = crct10dif_final, .descsize = CRC_T10DIF_DIGEST_SIZE, @@ -71,21 +97,25 @@ static struct shash_alg crc_t10dif_alg = { .base.cra_priority = 200, .base.cra_blocksize = CRC_T10DIF_BLOCK_SIZE, .base.cra_module = THIS_MODULE, -}; +}}; static int __init crc_t10dif_mod_init(void) { if (elf_hwcap & HWCAP_PMULL) - crc_t10dif_pmull = crc_t10dif_pmull_p64; + return crypto_register_shashes(crc_t10dif_alg, + ARRAY_SIZE(crc_t10dif_alg)); else - crc_t10dif_pmull = crc_t10dif_pmull_p8; - - return crypto_register_shash(&crc_t10dif_alg); + /* only register the first array element */ + return crypto_register_shash(crc_t10dif_alg); } static void __exit crc_t10dif_mod_exit(void) { - crypto_unregister_shash(&crc_t10dif_alg); + if (elf_hwcap & HWCAP_PMULL) + crypto_unregister_shashes(crc_t10dif_alg, + ARRAY_SIZE(crc_t10dif_alg)); + else + crypto_unregister_shash(crc_t10dif_alg); } module_cpu_feature_match(ASIMD, crc_t10dif_mod_init); |