diff options
Diffstat (limited to 'src')
| -rw-r--r-- | src/plugins/crypto_native/aes_cbc.c | 199 | ||||
| -rw-r--r-- | src/vppinfra/crypto/aes_cbc.h | 203 |
2 files changed, 227 insertions, 175 deletions
diff --git a/src/plugins/crypto_native/aes_cbc.c b/src/plugins/crypto_native/aes_cbc.c index dd7ca3f1cf1..c981897783f 100644 --- a/src/plugins/crypto_native/aes_cbc.c +++ b/src/plugins/crypto_native/aes_cbc.c @@ -25,191 +25,40 @@ #pragma GCC optimize ("O3") #endif -#if defined(__VAES__) && defined(__AVX512F__) -#define u8xN u8x64 -#define u32xN u32x16 -#define u32xN_min_scalar u32x16_min_scalar -#define u32xN_is_all_zero u32x16_is_all_zero -#define u32xN_splat u32x16_splat -#elif defined(__VAES__) -#define u8xN u8x32 -#define u32xN u32x8 -#define u32xN_min_scalar u32x8_min_scalar -#define u32xN_is_all_zero u32x8_is_all_zero -#define u32xN_splat u32x8_splat -#else -#define u8xN u8x16 -#define u32xN u32x4 -#define u32xN_min_scalar u32x4_min_scalar -#define u32xN_is_all_zero u32x4_is_all_zero -#define u32xN_splat u32x4_splat -#endif +#define CRYPTO_NATIVE_AES_CBC_ENC_VEC_SIZE 256 static_always_inline u32 aes_ops_enc_aes_cbc (vlib_main_t * vm, vnet_crypto_op_t * ops[], u32 n_ops, aes_key_size_t ks) { crypto_native_main_t *cm = &crypto_native_main; - int rounds = AES_KEY_ROUNDS (ks); - u8 placeholder[8192]; - u32 i, j, count, n_left = n_ops; - u32xN placeholder_mask = { }; - u32xN len = { }; - vnet_crypto_key_index_t key_index[4 * N_AES_LANES]; - u8 *src[4 * N_AES_LANES] = {}; - u8 *dst[4 * N_AES_LANES] = {}; - u8xN r[4] = {}; - u8xN k[15][4] = {}; - - for (i = 0; i < 4 * N_AES_LANES; i++) - key_index[i] = ~0; - -more: - for (i = 0; i < 4 * N_AES_LANES; i++) - if (len[i] == 0) - { - if (n_left == 0) - { - /* no more work to enqueue, so we are enqueueing placeholder buffer */ - src[i] = dst[i] = placeholder; - len[i] = sizeof (placeholder); - placeholder_mask[i] = 0; - } - else - { - u8x16 t = aes_block_load (ops[0]->iv); - ((u8x16 *) r)[i] = t; - - src[i] = ops[0]->src; - dst[i] = ops[0]->dst; - len[i] = ops[0]->len; - placeholder_mask[i] = ~0; - if (key_index[i] != ops[0]->key_index) - { - aes_cbc_key_data_t *kd; - key_index[i] = ops[0]->key_index; - kd = (aes_cbc_key_data_t *) cm->key_data[key_index[i]]; - for (j = 0; j < rounds + 1; j++) - ((u8x16 *) k[j])[i] = kd->encrypt_key[j]; - } - ops[0]->status = VNET_CRYPTO_OP_STATUS_COMPLETED; - n_left--; - ops++; - } - } - - count = u32xN_min_scalar (len); - - ASSERT (count % 16 == 0); - - for (i = 0; i < count; i += 16) + u32 i, n_left = n_ops; + uword key_indices[CRYPTO_NATIVE_AES_CBC_ENC_VEC_SIZE] = {}; + u8 *plaintext[CRYPTO_NATIVE_AES_CBC_ENC_VEC_SIZE] = {}; + uword oplen[CRYPTO_NATIVE_AES_CBC_ENC_VEC_SIZE] = {}; + u8 *iv[CRYPTO_NATIVE_AES_CBC_ENC_VEC_SIZE] = {}; + u8 *ciphertext[CRYPTO_NATIVE_AES_CBC_ENC_VEC_SIZE] = {}; + + while (n_left) { -#if defined(__VAES__) && defined(__AVX512F__) - r[0] = u8x64_xor3 (r[0], aes_block_load_x4 (src, i), k[0][0]); - r[1] = u8x64_xor3 (r[1], aes_block_load_x4 (src + 4, i), k[0][1]); - r[2] = u8x64_xor3 (r[2], aes_block_load_x4 (src + 8, i), k[0][2]); - r[3] = u8x64_xor3 (r[3], aes_block_load_x4 (src + 12, i), k[0][3]); - - for (j = 1; j < rounds; j++) + i = 0; + while (n_left && i < CRYPTO_NATIVE_AES_CBC_ENC_VEC_SIZE) { - r[0] = aes_enc_round_x4 (r[0], k[j][0]); - r[1] = aes_enc_round_x4 (r[1], k[j][1]); - r[2] = aes_enc_round_x4 (r[2], k[j][2]); - r[3] = aes_enc_round_x4 (r[3], k[j][3]); + key_indices[i] = ops[0]->key_index; + plaintext[i] = ops[0]->src; + ciphertext[i] = ops[0]->dst; + oplen[i] = ops[0]->len; + iv[i] = ops[0]->iv; + ops[0]->status = VNET_CRYPTO_OP_STATUS_COMPLETED; + + ops++; + n_left--; + i++; } - r[0] = aes_enc_last_round_x4 (r[0], k[j][0]); - r[1] = aes_enc_last_round_x4 (r[1], k[j][1]); - r[2] = aes_enc_last_round_x4 (r[2], k[j][2]); - r[3] = aes_enc_last_round_x4 (r[3], k[j][3]); - - aes_block_store_x4 (dst, i, r[0]); - aes_block_store_x4 (dst + 4, i, r[1]); - aes_block_store_x4 (dst + 8, i, r[2]); - aes_block_store_x4 (dst + 12, i, r[3]); -#elif defined(__VAES__) - r[0] = u8x32_xor3 (r[0], aes_block_load_x2 (src, i), k[0][0]); - r[1] = u8x32_xor3 (r[1], aes_block_load_x2 (src + 2, i), k[0][1]); - r[2] = u8x32_xor3 (r[2], aes_block_load_x2 (src + 4, i), k[0][2]); - r[3] = u8x32_xor3 (r[3], aes_block_load_x2 (src + 6, i), k[0][3]); - - for (j = 1; j < rounds; j++) - { - r[0] = aes_enc_round_x2 (r[0], k[j][0]); - r[1] = aes_enc_round_x2 (r[1], k[j][1]); - r[2] = aes_enc_round_x2 (r[2], k[j][2]); - r[3] = aes_enc_round_x2 (r[3], k[j][3]); - } - r[0] = aes_enc_last_round_x2 (r[0], k[j][0]); - r[1] = aes_enc_last_round_x2 (r[1], k[j][1]); - r[2] = aes_enc_last_round_x2 (r[2], k[j][2]); - r[3] = aes_enc_last_round_x2 (r[3], k[j][3]); - - aes_block_store_x2 (dst, i, r[0]); - aes_block_store_x2 (dst + 2, i, r[1]); - aes_block_store_x2 (dst + 4, i, r[2]); - aes_block_store_x2 (dst + 6, i, r[3]); -#else -#if __x86_64__ - r[0] = u8x16_xor3 (r[0], aes_block_load (src[0] + i), k[0][0]); - r[1] = u8x16_xor3 (r[1], aes_block_load (src[1] + i), k[0][1]); - r[2] = u8x16_xor3 (r[2], aes_block_load (src[2] + i), k[0][2]); - r[3] = u8x16_xor3 (r[3], aes_block_load (src[3] + i), k[0][3]); - - for (j = 1; j < rounds; j++) - { - r[0] = aes_enc_round_x1 (r[0], k[j][0]); - r[1] = aes_enc_round_x1 (r[1], k[j][1]); - r[2] = aes_enc_round_x1 (r[2], k[j][2]); - r[3] = aes_enc_round_x1 (r[3], k[j][3]); - } - - r[0] = aes_enc_last_round_x1 (r[0], k[j][0]); - r[1] = aes_enc_last_round_x1 (r[1], k[j][1]); - r[2] = aes_enc_last_round_x1 (r[2], k[j][2]); - r[3] = aes_enc_last_round_x1 (r[3], k[j][3]); - - aes_block_store (dst[0] + i, r[0]); - aes_block_store (dst[1] + i, r[1]); - aes_block_store (dst[2] + i, r[2]); - aes_block_store (dst[3] + i, r[3]); -#else - r[0] ^= aes_block_load (src[0] + i); - r[1] ^= aes_block_load (src[1] + i); - r[2] ^= aes_block_load (src[2] + i); - r[3] ^= aes_block_load (src[3] + i); - for (j = 0; j < rounds - 1; j++) - { - r[0] = vaesmcq_u8 (vaeseq_u8 (r[0], k[j][0])); - r[1] = vaesmcq_u8 (vaeseq_u8 (r[1], k[j][1])); - r[2] = vaesmcq_u8 (vaeseq_u8 (r[2], k[j][2])); - r[3] = vaesmcq_u8 (vaeseq_u8 (r[3], k[j][3])); - } - r[0] = vaeseq_u8 (r[0], k[j][0]) ^ k[rounds][0]; - r[1] = vaeseq_u8 (r[1], k[j][1]) ^ k[rounds][1]; - r[2] = vaeseq_u8 (r[2], k[j][2]) ^ k[rounds][2]; - r[3] = vaeseq_u8 (r[3], k[j][3]) ^ k[rounds][3]; - aes_block_store (dst[0] + i, r[0]); - aes_block_store (dst[1] + i, r[1]); - aes_block_store (dst[2] + i, r[2]); - aes_block_store (dst[3] + i, r[3]); -#endif -#endif + clib_aes_cbc_encrypt_multi ((aes_cbc_key_data_t **) cm->key_data, + key_indices, plaintext, oplen, iv, ks, + ciphertext, i); } - - len -= u32xN_splat (count); - - for (i = 0; i < 4 * N_AES_LANES; i++) - { - src[i] += count; - dst[i] += count; - } - - if (n_left > 0) - goto more; - - if (!u32xN_is_all_zero (len & placeholder_mask)) - goto more; - return n_ops; } diff --git a/src/vppinfra/crypto/aes_cbc.h b/src/vppinfra/crypto/aes_cbc.h index cb3d0784051..ee9263df260 100644 --- a/src/vppinfra/crypto/aes_cbc.h +++ b/src/vppinfra/crypto/aes_cbc.h @@ -539,4 +539,207 @@ clib_aes256_cbc_decrypt (const aes_cbc_key_data_t *kd, const u8 *ciphertext, clib_aes_cbc_decrypt (kd, ciphertext, len, iv, AES_KEY_256, plaintext); } +#if __GNUC__ > 4 && !__clang__ && CLIB_DEBUG == 0 +#pragma GCC optimize("O3") +#endif + +#if defined(__VAES__) && defined(__AVX512F__) +#define u8xN u8x64 +#define u32xN u32x16 +#define u32xN_min_scalar u32x16_min_scalar +#define u32xN_is_all_zero u32x16_is_all_zero +#define u32xN_splat u32x16_splat +#elif defined(__VAES__) +#define u8xN u8x32 +#define u32xN u32x8 +#define u32xN_min_scalar u32x8_min_scalar +#define u32xN_is_all_zero u32x8_is_all_zero +#define u32xN_splat u32x8_splat +#else +#define u8xN u8x16 +#define u32xN u32x4 +#define u32xN_min_scalar u32x4_min_scalar +#define u32xN_is_all_zero u32x4_is_all_zero +#define u32xN_splat u32x4_splat +#endif + +static_always_inline u32 +clib_aes_cbc_encrypt_multi (aes_cbc_key_data_t **key_data, + const uword *key_indices, u8 **plaintext, + const uword *oplen, u8 **iv, aes_key_size_t ks, + u8 **ciphertext, uword n_ops) +{ + int rounds = AES_KEY_ROUNDS (ks); + u8 placeholder[8192]; + u32 i, j, count, n_left = n_ops; + u32xN placeholder_mask = {}; + u32xN len = {}; + u32 key_index[4 * N_AES_LANES]; + u8 *src[4 * N_AES_LANES] = {}; + u8 *dst[4 * N_AES_LANES] = {}; + u8xN r[4] = {}; + u8xN k[15][4] = {}; + + for (i = 0; i < 4 * N_AES_LANES; i++) + key_index[i] = ~0; + +more: + for (i = 0; i < 4 * N_AES_LANES; i++) + if (len[i] == 0) + { + if (n_left == 0) + { + /* no more work to enqueue, so we are enqueueing placeholder buffer + */ + src[i] = dst[i] = placeholder; + len[i] = sizeof (placeholder); + placeholder_mask[i] = 0; + } + else + { + u8x16 t = aes_block_load (iv[0]); + ((u8x16 *) r)[i] = t; + + src[i] = plaintext[0]; + dst[i] = ciphertext[0]; + len[i] = oplen[0]; + placeholder_mask[i] = ~0; + if (key_index[i] != key_indices[0]) + { + aes_cbc_key_data_t *kd; + key_index[i] = key_indices[0]; + kd = key_data[key_index[i]]; + for (j = 0; j < rounds + 1; j++) + ((u8x16 *) k[j])[i] = kd->encrypt_key[j]; + } + n_left--; + iv++; + ciphertext++; + plaintext++; + key_indices++; + oplen++; + } + } + + count = u32xN_min_scalar (len); + + ASSERT (count % 16 == 0); + + for (i = 0; i < count; i += 16) + { +#if defined(__VAES__) && defined(__AVX512F__) + r[0] = u8x64_xor3 (r[0], aes_block_load_x4 (src, i), k[0][0]); + r[1] = u8x64_xor3 (r[1], aes_block_load_x4 (src + 4, i), k[0][1]); + r[2] = u8x64_xor3 (r[2], aes_block_load_x4 (src + 8, i), k[0][2]); + r[3] = u8x64_xor3 (r[3], aes_block_load_x4 (src + 12, i), k[0][3]); + + for (j = 1; j < rounds; j++) + { + r[0] = aes_enc_round_x4 (r[0], k[j][0]); + r[1] = aes_enc_round_x4 (r[1], k[j][1]); + r[2] = aes_enc_round_x4 (r[2], k[j][2]); + r[3] = aes_enc_round_x4 (r[3], k[j][3]); + } + r[0] = aes_enc_last_round_x4 (r[0], k[j][0]); + r[1] = aes_enc_last_round_x4 (r[1], k[j][1]); + r[2] = aes_enc_last_round_x4 (r[2], k[j][2]); + r[3] = aes_enc_last_round_x4 (r[3], k[j][3]); + + aes_block_store_x4 (dst, i, r[0]); + aes_block_store_x4 (dst + 4, i, r[1]); + aes_block_store_x4 (dst + 8, i, r[2]); + aes_block_store_x4 (dst + 12, i, r[3]); +#elif defined(__VAES__) + r[0] = u8x32_xor3 (r[0], aes_block_load_x2 (src, i), k[0][0]); + r[1] = u8x32_xor3 (r[1], aes_block_load_x2 (src + 2, i), k[0][1]); + r[2] = u8x32_xor3 (r[2], aes_block_load_x2 (src + 4, i), k[0][2]); + r[3] = u8x32_xor3 (r[3], aes_block_load_x2 (src + 6, i), k[0][3]); + + for (j = 1; j < rounds; j++) + { + r[0] = aes_enc_round_x2 (r[0], k[j][0]); + r[1] = aes_enc_round_x2 (r[1], k[j][1]); + r[2] = aes_enc_round_x2 (r[2], k[j][2]); + r[3] = aes_enc_round_x2 (r[3], k[j][3]); + } + r[0] = aes_enc_last_round_x2 (r[0], k[j][0]); + r[1] = aes_enc_last_round_x2 (r[1], k[j][1]); + r[2] = aes_enc_last_round_x2 (r[2], k[j][2]); + r[3] = aes_enc_last_round_x2 (r[3], k[j][3]); + + aes_block_store_x2 (dst, i, r[0]); + aes_block_store_x2 (dst + 2, i, r[1]); + aes_block_store_x2 (dst + 4, i, r[2]); + aes_block_store_x2 (dst + 6, i, r[3]); +#else +#if __x86_64__ + r[0] = u8x16_xor3 (r[0], aes_block_load (src[0] + i), k[0][0]); + r[1] = u8x16_xor3 (r[1], aes_block_load (src[1] + i), k[0][1]); + r[2] = u8x16_xor3 (r[2], aes_block_load (src[2] + i), k[0][2]); + r[3] = u8x16_xor3 (r[3], aes_block_load (src[3] + i), k[0][3]); + + for (j = 1; j < rounds; j++) + { + r[0] = aes_enc_round_x1 (r[0], k[j][0]); + r[1] = aes_enc_round_x1 (r[1], k[j][1]); + r[2] = aes_enc_round_x1 (r[2], k[j][2]); + r[3] = aes_enc_round_x1 (r[3], k[j][3]); + } + + r[0] = aes_enc_last_round_x1 (r[0], k[j][0]); + r[1] = aes_enc_last_round_x1 (r[1], k[j][1]); + r[2] = aes_enc_last_round_x1 (r[2], k[j][2]); + r[3] = aes_enc_last_round_x1 (r[3], k[j][3]); + + aes_block_store (dst[0] + i, r[0]); + aes_block_store (dst[1] + i, r[1]); + aes_block_store (dst[2] + i, r[2]); + aes_block_store (dst[3] + i, r[3]); +#else + r[0] ^= aes_block_load (src[0] + i); + r[1] ^= aes_block_load (src[1] + i); + r[2] ^= aes_block_load (src[2] + i); + r[3] ^= aes_block_load (src[3] + i); + for (j = 0; j < rounds - 1; j++) + { + r[0] = vaesmcq_u8 (vaeseq_u8 (r[0], k[j][0])); + r[1] = vaesmcq_u8 (vaeseq_u8 (r[1], k[j][1])); + r[2] = vaesmcq_u8 (vaeseq_u8 (r[2], k[j][2])); + r[3] = vaesmcq_u8 (vaeseq_u8 (r[3], k[j][3])); + } + r[0] = vaeseq_u8 (r[0], k[j][0]) ^ k[rounds][0]; + r[1] = vaeseq_u8 (r[1], k[j][1]) ^ k[rounds][1]; + r[2] = vaeseq_u8 (r[2], k[j][2]) ^ k[rounds][2]; + r[3] = vaeseq_u8 (r[3], k[j][3]) ^ k[rounds][3]; + aes_block_store (dst[0] + i, r[0]); + aes_block_store (dst[1] + i, r[1]); + aes_block_store (dst[2] + i, r[2]); + aes_block_store (dst[3] + i, r[3]); +#endif +#endif + } + + len -= u32xN_splat (count); + + for (i = 0; i < 4 * N_AES_LANES; i++) + { + src[i] += count; + dst[i] += count; + } + + if (n_left > 0) + goto more; + + if (!u32xN_is_all_zero (len & placeholder_mask)) + goto more; + + return n_ops; +} + +#undef u8xN +#undef u32xN +#undef u32xN_min_scalar +#undef u32xN_is_all_zero +#undef u32xN_splat + #endif /* __crypto_aes_cbc_h__ */ |