vpp - Vector Packet Processing

Age	Commit message (Expand)	Author	Files	Lines
2019-03-01	Tests: Remove all wildcard imports.	Paul Vinciguerra	1	-1/+1
2018-06-19	Fixed bugs in SRv6 API	Pablo Camarillo	1	-21/+14
2017-08-22	SRv6 tests	Kris Michielsen	1	-0/+238

/* *------------------------------------------------------------------ * Copyright (c) 2020 Cisco and/or its affiliates. * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at: * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. *------------------------------------------------------------------ */ #ifdef __x86_64__ static_always_inline u8x16 __clib_unused xor3 (u8x16 a, u8x16 b, u8x16 c) { #if __AVX512F__ return (u8x16) _mm_ternarylogic_epi32 ((__m128i) a, (__m128i) b, (__m128i) c, 0x96); #endif return a ^ b ^ c; } #if __VAES__ static_always_inline __m512i xor3_x4 (__m512i a, __m512i b, __m512i c) { return _mm512_ternarylogic_epi32 (a, b, c, 0x96); } static_always_inline __m512i aes_block_load_x4 (u8 * src[], int i) { __m512i r = { }; r = _mm512_inserti64x2 (r, (__m128i) aes_block_load (src[0] + i), 0); r = _mm512_inserti64x2 (r, (__m128i) aes_block_load (src[1] + i), 1); r = _mm512_inserti64x2 (r, (__m128i) aes_block_load (src[2] + i), 2); r = _mm512_inserti64x2 (r, (__m128i) aes_block_load (src[3] + i), 3); return r; } static_always_inline void aes_block_store_x4 (u8 * dst[], int i, __m512i r) { aes_block_store (dst[0] + i, (u8x16) _mm512_extracti64x2_epi64 (r, 0)); aes_block_store (dst[1] + i, (u8x16) _mm512_extracti64x2_epi64 (r, 1)); aes_block_store (dst[2] + i, (u8x16) _mm512_extracti64x2_epi64 (r, 2)); aes_block_store (dst[3] + i, (u8x16) _mm512_extracti64x2_epi64 (r, 3)); } #endif static_always_inline void __clib_unused aes_cbc_dec (u8x16 * k, u8 * src, u8 * dst, u8 * iv, int count, aes_key_size_t rounds) { u8x16 r0, r1, r2, r3, c0, c1, c2, c3, f; int i; f = aes_block_load (iv); while (count >= 64) { _mm_prefetch (src + 128, _MM_HINT_T0); _mm_prefetch (dst + 128, _MM_HINT_T0); c0 = aes_block_load (src); c1 = aes_block_load (src + 16); c2 = aes_block_load (src + 32); c3 = aes_block_load (src + 48); r0 = c0 ^ k[0]; r1 = c1 ^ k[0]; r2 = c2 ^ k[0]; r3 = c3 ^ k[0]; for (i = 1; i < rounds; i++) { r0 = aes_dec_round (r0, k[i]); r1 = aes_dec_round (r1, k[i]); r2 = aes_dec_round (r2, k[i]); r3 = aes_dec_round (r3, k[i]); } r0 = aes_dec_last_round (r0, k[i]); r1 = aes_dec_last_round (r1, k[i]); r2 = aes_dec_last_round (r2, k[i]); r3 = aes_dec_last_round (r3, k[i]); aes_block_store (dst, r0 ^ f); aes_block_store (dst + 16, r1 ^ c0); aes_block_store (dst + 32, r2 ^ c1); aes_block_store (dst + 48, r3 ^ c2); f = c3; count -= 64; src += 64; dst += 64; } while (count > 0) { c0 = aes_block_load (src); r0 = c0 ^ k[0]; for (i = 1; i < rounds; i++) r0 = aes_dec_round (r0, k[i]); r0 = aes_dec_last_round (r0, k[i]); aes_block_store (dst, r0 ^ f); f = c0; count -= 16; src += 16; dst += 16; } } #ifdef __VAES__ static_always_inline void vaes_cbc_dec (__m512i * k, u8 * src, u8 * dst, u8 * iv, int count, aes_key_size_t rounds) { __m512i permute = { 6, 7, 8, 9, 10, 11, 12, 13 }; __m512i r0, r1, r2, r3, c0, c1, c2, c3, f = { }; __mmask8 m; int i, n_blocks = count >> 4; f = _mm512_mask_loadu_epi64 (f, 0xc0, (__m512i *) (iv - 48)); while (n_blocks >= 16) { c0 = _mm512_loadu_si512 ((__m512i *) src); c1 = _mm512_loadu_si512 ((__m512i *) (src + 64)); c2 = _mm512_loadu_si512 ((__m512i *) (src + 128)); c3 = _mm512_loadu_si512 ((__m512i *) (src + 192)); r0 = c0 ^ k[0]; r1 = c1 ^ k[0]; r2 = c2 ^ k[0]; r3 = c3 ^ k[0]; for (i = 1; i < rounds; i++) { r0 = _mm512_aesdec_epi128 (r0, k[i]); r1 = _mm512_aesdec_epi128 (r1, k[i]); r2 = _mm512_aesdec_epi128 (r2, k[i]); r3 = _mm512_aesdec_epi128 (r3, k[i]); } r0 = _mm512_aesdeclast_epi128 (r0, k[i]); r1 = _mm512_aesdeclast_epi128 (r1, k[i]); r2 = _mm512_aesdeclast_epi128 (r2, k[i]); r3 = _mm512_aesdeclast_epi128 (r3, k[i]); r0 ^= _mm512_permutex2var_epi64 (f, permute, c0); _mm512_storeu_si512 ((__m512i *) dst, r0); r1 ^= _mm512_permutex2var_epi64 (c0, permute, c1); _mm512_storeu_si512 ((__m512i *) (dst + 64), r1); r2 ^= _mm512_permutex2var_epi64 (c1, permute, c2); _mm512_storeu_si512 ((__m512i *) (dst + 128), r2); r3 ^= _mm512_permutex2var_epi64 (c2, permute, c3); _mm512_storeu_si512 ((__m512i *) (dst + 192), r3); f = c3; n_blocks -= 16; src += 256; dst += 256; } while (n_blocks > 0) { m = (1 << (n_blocks * 2)) - 1; c0 = _mm512_mask_loadu_epi64 (c0, m, (__m512i *) src); f = _mm512_permutex2var_epi64 (f, permute, c0); r0 = c0 ^ k[0]; for (i = 1; i < rounds; i++) r0 = _mm512_aesdec_epi128 (r0, k[i]); r0 = _mm512_aesdeclast_epi128 (r0, k[i]); _mm512_mask_storeu_epi64 ((__m512i *) dst, m, r0 ^ f); f = c0; n_blocks -= 4; src += 64; dst += 64; } } #endif #ifdef __VAES__ #define N 16 #define u32xN u32x16 #define u32xN_min_scalar u32x16_min_scalar #define u32xN_is_all_zero u32x16_is_all_zero #else #define N 4 #define u32xN u32x4 #define u32xN_min_scalar u32x4_min_scalar #define u32xN_is_all_zero u32x4_is_all_zero #endif static_always_inline u32 aesni_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; crypto_native_per_thread_data_t *ptd = vec_elt_at_index (cm->per_thread_data, vm->thread_index); int rounds = AES_KEY_ROUNDS (ks); u8 dummy[8192]; u32 i, j, count, n_left = n_ops; u32xN dummy_mask = { }; u32xN len = { }; vnet_crypto_key_index_t key_index[N]; u8 *src[N] = { }; u8 *dst[N] = { }; /* *INDENT-OFF* */ union { u8x16 x1[N]; __m512i x4[N / 4]; } r = { }, k[15] = { }; /* *INDENT-ON* */ for (i = 0; i < N; i++) key_index[i] = ~0; more: for (i = 0; i < N; i++) if (len[i] == 0) { if (n_left == 0) { /* no more work to enqueue, so we are enqueueing dummy buffer */ src[i] = dst[i] = dummy; len[i] = sizeof (dummy); dummy_mask[i] = 0; } else { if (ops[0]->flags & VNET_CRYPTO_OP_FLAG_INIT_IV) { r.x1[i] = ptd->cbc_iv[i]; aes_block_store (ops[0]->iv, r.x1[i]); ptd->cbc_iv[i] = aes_enc_round (r.x1[i], r.x1[i]); } else r.x1[i] = aes_block_load (ops[0]->iv); src[i] = ops[0]->src; dst[i] = ops[0]->dst; len[i] = ops[0]->len; dummy_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++) k[j].x1[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) { #ifdef __VAES__ r.x4[0] = xor3_x4 (r.x4[0], aes_block_load_x4 (src, i), k[0].x4[0]); r.x4[1] = xor3_x4 (r.x4[1], aes_block_load_x4 (src, i), k[0].x4[1]); r.x4[2] = xor3_x4 (r.x4[2], aes_block_load_x4 (src, i), k[0].x4[2]); r.x4[3] = xor3_x4 (r.x4[3], aes_block_load_x4 (src, i), k[0].x4[3]); for (j = 1; j < rounds; j++) { r.x4[0] = _mm512_aesenc_epi128 (r.x4[0], k[j].x4[0]); r.x4[1] = _mm512_aesenc_epi128 (r.x4[1], k[j].x4[1]); r.x4[2] = _mm512_aesenc_epi128 (r.x4[2], k[j].x4[2]); r.x4[3] = _mm512_aesenc_epi128 (r.x4[3], k[j].x4[3]); } r.x4[0] = _mm512_aesenclast_epi128 (r.x4[0], k[j].x4[0]); r.x4[1] = _mm512_aesenclast_epi128 (r.x4[1], k[j].x4[1]); r.x4[2] = _mm512_aesenclast_epi128 (r.x4[2], k[j].x4[2]); r.x4[3] = _mm512_aesenclast_epi128 (r.x4[3], k[j].x4[3]); aes_block_store_x4 (dst, i, r.x4[0]); aes_block_store_x4 (dst + 4, i, r.x4[1]); aes_block_store_x4 (dst + 8, i, r.x4[2]); aes_block_store_x4 (dst + 12, i, r.x4[3]); #else r.x1[0] = xor3 (r.x1[0], aes_block_load (src[0] + i), k[0].x1[0]); r.x1[1] = xor3 (r.x1[1], aes_block_load (src[1] + i), k[0].x1[1]); r.x1[2] = xor3 (r.x1[2], aes_block_load (src[2] + i), k[0].x1[2]); r.x1[3] = xor3 (r.x1[3], aes_block_load (src[3] + i), k[0].x1[3]); for (j = 1; j < rounds; j++) { r.x1[0] = aes_enc_round (r.x1[0], k[j].x1[0]); r.x1[1] = aes_enc_round (r.x1[1], k[j].x1[1]); r.x1[2] = aes_enc_round (r.x1[2], k[j].x1[2]); r.x1[3] = aes_enc_round (r.x1[3], k[j].x1[3]); } r.x1[0] = aes_enc_last_round (r.x1[0], k[j].x1[0]); r.x1[1] = aes_enc_last_round (r.x1[1], k[j].x1[1]); r.x1[2] = aes_enc_last_round (r.x1[2], k[j].x1[2]); r.x1[3] = aes_enc_last_round (r.x1[3], k[j].x1[3]); aes_block_store (dst[0] + i, r.x1[0]); aes_block_store (dst[1] + i, r.x1[1]); aes_block_store (dst[2] + i, r.x1[2]); aes_block_store (dst[3] + i, r.x1[3]); #endif } for (i = 0; i < N; i++) { src[i] += count; dst[i] += count; len[i] -= count; } if (n_left > 0) goto more; if (!u32xN_is_all_zero (len & dummy_mask)) goto more; return n_ops; } static_always_inline u32 aesni_ops_dec_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); vnet_crypto_op_t *op = ops[0]; aes_cbc_key_data_t *kd = (aes_cbc_key_data_t *) cm->key_data[op->key_index]; u32 n_left = n_ops; ASSERT (n_ops >= 1); decrypt: #ifdef __VAES__ vaes_cbc_dec (kd->decrypt_key, op->src, op->dst, op->iv, op->len, rounds); #else aes_cbc_dec (kd->decrypt_key, op->src, op->dst, op->iv, op->len, rounds); #endif op->status = VNET_CRYPTO_OP_STATUS_COMPLETED; if (--n_left) { op += 1; kd = (aes_cbc_key_data_t *) cm->key_data[op->key_index]; goto decrypt; } return n_ops; } #endif /* * fd.io coding-style-patch-verification: ON * * Local Variables: * eval: (c-set-style "gnu") * End: */