/* * Copyright (c) 2015-2020, Intel Corporation * Copyright (c) 2024, VectorCamp PC * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions are met: * * * Redistributions of source code must retain the above copyright notice, * this list of conditions and the following disclaimer. * * Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * * Neither the name of Intel Corporation nor the names of its contributors * may be used to endorse or promote products derived from this software * without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE * POSSIBILITY OF SUCH DAMAGE. */ /** \file * \brief Teddy literal matcher: SSSE3 engine runtime. */ #include "fdr_internal.h" #include "flood_runtime.h" #include "teddy.h" #include "teddy_internal.h" #include "teddy_runtime_common.h" #include "util/arch.h" #include "util/simd_utils.h" #ifdef ARCH_64_BIT static really_inline hwlm_error_t conf_chunk_64(u64a chunk, u8 bucket, u8 offset, CautionReason reason, const u8 *pt, const u32* confBase, const struct FDR_Runtime_Args *a, hwlm_group_t *control, u32 *last_match) { if (unlikely(chunk != ones_u64a)) { chunk = ~chunk; do_confWithBit_teddy(&chunk, bucket, offset, confBase, reason, a, pt, control, last_match); // adapted from CHECK_HWLM_TERMINATE_MATCHING if (unlikely(*control == HWLM_TERMINATE_MATCHING)) { return HWLM_TERMINATED; } } return HWLM_SUCCESS; } #define CONF_CHUNK_64(chunk, bucket, off, reason, pt, confBase, a, control, last_match) \ if(conf_chunk_64(chunk, bucket, off, reason, pt, confBase, a, control, last_match) == HWLM_TERMINATED)return HWLM_TERMINATED; #else // 32/64 static really_inline hwlm_error_t conf_chunk_32(u32 chunk, u8 bucket, u8 offset, CautionReason reason, const u8 *pt, const u32* confBase, const struct FDR_Runtime_Args *a, hwlm_group_t *control, u32 *last_match) { if (unlikely(chunk != ones_u32)) { chunk = ~chunk; do_confWithBit_teddy(&chunk, bucket, offset, confBase, reason, a, pt, control, last_match); // adapted from CHECK_HWLM_TERMINATE_MATCHING if (unlikely(*control == HWLM_TERMINATE_MATCHING)) { return HWLM_TERMINATED; } } return HWLM_SUCCESS; } #define CONF_CHUNK_32(chunk, bucket, off, reason, pt, confBase, a, control, last_match) \ if(conf_chunk_32(chunk, bucket, off, reason, pt, confBase, a, control, last_match) == HWLM_TERMINATED)return HWLM_TERMINATED; #endif #if defined(HAVE_AVX512VBMI) || defined(HAVE_AVX512) // common to both 512b's static really_inline const m512 *getDupMaskBase(const struct Teddy *teddy, u8 numMask) { return (const m512 *)((const u8 *)teddy + ROUNDUP_CL(sizeof(struct Teddy)) + ROUNDUP_CL(2 * numMask * sizeof(m256))); } #ifdef ARCH_64_BIT static really_inline hwlm_error_t confirm_teddy_64_512(m512 var, u8 bucket, u8 offset, CautionReason reason, const u8 *ptr, const struct FDR_Runtime_Args *a, const u32* confBase, hwlm_group_t *control, u32 *last_match) { if (unlikely(diff512(var, ones512()))) { m128 p128_0 = extract128from512(var, 0); m128 p128_1 = extract128from512(var, 1); m128 p128_2 = extract128from512(var, 2); m128 p128_3 = extract128from512(var, 3); u64a part1 = movq(p128_0); u64a part2 = movq(rshiftbyte_m128(p128_0, 8)); u64a part3 = movq(p128_1); u64a part4 = movq(rshiftbyte_m128(p128_1, 8)); u64a part5 = movq(p128_2); u64a part6 = movq(rshiftbyte_m128(p128_2, 8)); u64a part7 = movq(p128_3); u64a part8 = movq(rshiftbyte_m128(p128_3, 8)); CONF_CHUNK_64(part1, bucket, offset, reason, ptr, confBase, a, control, last_match); CONF_CHUNK_64(part2, bucket, offset + 8, reason, ptr, confBase, a, control, last_match); CONF_CHUNK_64(part3, bucket, offset + 16, reason, ptr, confBase, a, control, last_match); CONF_CHUNK_64(part4, bucket, offset + 24, reason, ptr, confBase, a, control, last_match); CONF_CHUNK_64(part5, bucket, offset + 32, reason, ptr, confBase, a, control, last_match); CONF_CHUNK_64(part6, bucket, offset + 40, reason, ptr, confBase, a, control, last_match); CONF_CHUNK_64(part7, bucket, offset + 48, reason, ptr, confBase, a, control, last_match); CONF_CHUNK_64(part8, bucket, offset + 56, reason, ptr, confBase, a, control, last_match); } return HWLM_SUCCESS; } #define confirm_teddy_512_f confirm_teddy_64_512 #else // 32/64 static really_inline hwlm_error_t confirm_teddy_32_512(m512 var, u8 bucket, u8 offset, CautionReason reason, const u8 *ptr, const struct FDR_Runtime_Args *a, const u32* confBase, hwlm_group_t *control, u32 *last_match) { if (unlikely(diff512(var, ones512()))) { m128 p128_0 = extract128from512(var, 0); m128 p128_1 = extract128from512(var, 1); m128 p128_2 = extract128from512(var, 2); m128 p128_3 = extract128from512(var, 3); u32 part1 = movd(p128_0); u32 part2 = movd(rshiftbyte_m128(p128_0, 4)); u32 part3 = movd(rshiftbyte_m128(p128_0, 8)); u32 part4 = movd(rshiftbyte_m128(p128_0, 12)); u32 part5 = movd(p128_1); u32 part6 = movd(rshiftbyte_m128(p128_1, 4)); u32 part7 = movd(rshiftbyte_m128(p128_1, 8)); u32 part8 = movd(rshiftbyte_m128(p128_1, 12)); u32 part9 = movd(p128_2); u32 part10 = movd(rshiftbyte_m128(p128_2, 4)); u32 part11 = movd(rshiftbyte_m128(p128_2, 8)); u32 part12 = movd(rshiftbyte_m128(p128_2, 12)); u32 part13 = movd(p128_3); u32 part14 = movd(rshiftbyte_m128(p128_3, 4)); u32 part15 = movd(rshiftbyte_m128(p128_3, 8)); u32 part16 = movd(rshiftbyte_m128(p128_3, 12)); CONF_CHUNK_32(part1, bucket, offset, reason, ptr, confBase, a, control, last_match); CONF_CHUNK_32(part2, bucket, offset + 4, reason, ptr, confBase, a, control, last_match); CONF_CHUNK_32(part3, bucket, offset + 8, reason, ptr, confBase, a, control, last_match); CONF_CHUNK_32(part4, bucket, offset + 12, reason, ptr, confBase, a, control, last_match); CONF_CHUNK_32(part5, bucket, offset + 16, reason, ptr, confBase, a, control, last_match); CONF_CHUNK_32(part6, bucket, offset + 20, reason, ptr, confBase, a, control, last_match); CONF_CHUNK_32(part7, bucket, offset + 24, reason, ptr, confBase, a, control, last_match); CONF_CHUNK_32(part8, bucket, offset + 28, reason, ptr, confBase, a, control, last_match); CONF_CHUNK_32(part9, bucket, offset + 32, reason, ptr, confBase, a, control, last_match); CONF_CHUNK_32(part10, bucket, offset + 36, reason, ptr, confBase, a, control, last_match); CONF_CHUNK_32(part11, bucket, offset + 40, reason, ptr, confBase, a, control, last_match); CONF_CHUNK_32(part12, bucket, offset + 44, reason, ptr, confBase, a, control, last_match); CONF_CHUNK_32(part13, bucket, offset + 48, reason, ptr, confBase, a, control, last_match); CONF_CHUNK_32(part14, bucket, offset + 52, reason, ptr, confBase, a, control, last_match); CONF_CHUNK_32(part15, bucket, offset + 56, reason, ptr, confBase, a, control, last_match); CONF_CHUNK_32(part16, bucket, offset + 60, reason, ptr, confBase, a, control, last_match); } return HWLM_SUCCESS; } #define confirm_teddy_512_f confirm_teddy_32_512 #endif // 32/64 #define CONFIRM_TEDDY_512(...) if(confirm_teddy_512_f(__VA_ARGS__, a, confBase, &control, &last_match) == HWLM_TERMINATED)return HWLM_TERMINATED; #endif // AVX512VBMI or AVX512 #if defined(HAVE_AVX512VBMI) // VBMI strong teddy #define TEDDY_VBMI_SL1_MASK 0xfffffffffffffffeULL #define TEDDY_VBMI_SL2_MASK 0xfffffffffffffffcULL #define TEDDY_VBMI_SL3_MASK 0xfffffffffffffff8ULL template static really_inline m512 prep_conf_teddy_512vbmi_templ(const m512 *lo_mask, const m512 *dup_mask, const m512 *sl_msk, const m512 val) { m512 lo = and512(val, *lo_mask); m512 hi = and512(rshift64_m512(val, 4), *lo_mask); m512 shuf_or_b0 = or512(pshufb_m512(dup_mask[0], lo), pshufb_m512(dup_mask[1], hi)); if constexpr (NMSK == 1) return shuf_or_b0; m512 shuf_or_b1 = or512(pshufb_m512(dup_mask[2], lo), pshufb_m512(dup_mask[3], hi)); m512 sl1 = maskz_vpermb512(TEDDY_VBMI_SL1_MASK, sl_msk[0], shuf_or_b1); if constexpr (NMSK == 2) return (or512(sl1, shuf_or_b0)); m512 shuf_or_b2 = or512(pshufb_m512(dup_mask[4], lo), pshufb_m512(dup_mask[5], hi)); m512 sl2 = maskz_vpermb512(TEDDY_VBMI_SL2_MASK, sl_msk[1], shuf_or_b2); if constexpr (NMSK == 3) return (or512(sl2, or512(sl1, shuf_or_b0))); m512 shuf_or_b3 = or512(pshufb_m512(dup_mask[6], lo), pshufb_m512(dup_mask[7], hi)); m512 sl3 = maskz_vpermb512(TEDDY_VBMI_SL3_MASK, sl_msk[2], shuf_or_b3); return (or512(sl3, or512(sl2, or512(sl1, shuf_or_b0)))); } #define TEDDY_VBMI_SL1_POS 15 #define TEDDY_VBMI_SL2_POS 14 #define TEDDY_VBMI_SL3_POS 13 #define TEDDY_VBMI_CONF_MASK_HEAD (0xffffffffffffffffULL >> n_sh) #define TEDDY_VBMI_CONF_MASK_FULL (0xffffffffffffffffULL << n_sh) #define TEDDY_VBMI_CONF_MASK_VAR(n) (0xffffffffffffffffULL >> (64 - n) << overlap) #define TEDDY_VBMI_LOAD_MASK_PATCH (0xffffffffffffffffULL >> (64 - n_sh)) template hwlm_error_t fdr_exec_teddy_512vbmi_templ(const struct FDR *fdr, const struct FDR_Runtime_Args *a, hwlm_group_t control) { const u8 *buf_end = a->buf + a->len; const u8 *ptr = a->buf + a->start_offset; u32 floodBackoff = FLOOD_BACKOFF_START; const u8 *tryFloodDetect = a->firstFloodDetect; u32 last_match = ones_u32; const struct Teddy *teddy = (const struct Teddy *)fdr; const size_t iterBytes = 64; u32 n_sh = NMSK - 1; const size_t loopBytes = 64 - n_sh; DEBUG_PRINTF("params: buf %p len %zu start_offset %zu\n", a->buf, a->len, a->start_offset); const m128 *maskBase = getMaskBase(teddy); m512 lo_mask = set1_64x8(0xf); m512 dup_mask[NMSK * 2]; m512 sl_msk[NMSK - 1]; dup_mask[0] = set1_4x128(maskBase[0]); dup_mask[1] = set1_4x128(maskBase[1]); if constexpr (NMSK > 1){ dup_mask[2] = set1_4x128(maskBase[2]); dup_mask[3] = set1_4x128(maskBase[3]); sl_msk[0] = loadu512(p_sh_mask_arr + TEDDY_VBMI_SL1_POS); } if constexpr (NMSK > 2){ dup_mask[4] = set1_4x128(maskBase[4]); dup_mask[5] = set1_4x128(maskBase[5]); sl_msk[1] = loadu512(p_sh_mask_arr + TEDDY_VBMI_SL2_POS); } if constexpr (NMSK > 3){ dup_mask[6] = set1_4x128(maskBase[6]); dup_mask[7] = set1_4x128(maskBase[7]); sl_msk[2] = loadu512(p_sh_mask_arr + TEDDY_VBMI_SL3_POS); } const u32 *confBase = getConfBase(teddy); u64a k = TEDDY_VBMI_CONF_MASK_FULL; m512 p_mask = set_mask_m512(~k); u32 overlap = 0; u64a patch = 0; if (likely(ptr + loopBytes <= buf_end)) { m512 p_mask0 = set_mask_m512(~TEDDY_VBMI_CONF_MASK_HEAD); m512 r_0 = prep_conf_teddy_512vbmi_templ(&lo_mask, dup_mask, sl_msk, loadu512(ptr)); r_0 = or512(r_0, p_mask0); CONFIRM_TEDDY_512(r_0, 8, 0, VECTORING, ptr); ptr += loopBytes; overlap = n_sh; patch = TEDDY_VBMI_LOAD_MASK_PATCH; } for (; ptr + loopBytes <= buf_end; ptr += loopBytes) { __builtin_prefetch(ptr - n_sh + (64 * 2)); CHECK_FLOOD; m512 r_0 = prep_conf_teddy_512vbmi_templ(&lo_mask, dup_mask, sl_msk, loadu512(ptr - n_sh)); r_0 = or512(r_0, p_mask); CONFIRM_TEDDY_512(r_0, 8, 0, NOT_CAUTIOUS, ptr - n_sh); } assert(ptr + loopBytes > buf_end); if (ptr < buf_end) { u32 left = (u32)(buf_end - ptr); u64a k1 = TEDDY_VBMI_CONF_MASK_VAR(left); m512 p_mask1 = set_mask_m512(~k1); m512 val_0 = loadu_maskz_m512(k1 | patch, ptr - overlap); m512 r_0 = prep_conf_teddy_512vbmi_templ(&lo_mask, dup_mask, sl_msk, val_0); r_0 = or512(r_0, p_mask1); CONFIRM_TEDDY_512(r_0, 8, 0, VECTORING, ptr - overlap); } return HWLM_SUCCESS; } #define FDR_EXEC_TEDDY_FN fdr_exec_teddy_512vbmi_templ #elif defined(HAVE_AVX512) // AVX512 reinforced teddy /* both 512b versions use the same confirm teddy */ template static inline m512 shift_or_512_templ(const m512 *dup_mask, m512 lo, m512 hi) { return or512(lshift128_m512(or512(pshufb_m512(dup_mask[(NMSK - 1) * 2], lo), pshufb_m512(dup_mask[(NMSK * 2) - 1], hi)), NMSK - 1), shift_or_512_templ(dup_mask, lo, hi)); } template <> m512 shift_or_512_templ<1>(const m512 *dup_mask, m512 lo, m512 hi){ return or512(pshufb_m512(dup_mask[0], lo), pshufb_m512(dup_mask[1], hi)); } template static really_inline m512 prep_conf_teddy_no_reinforcement_512_templ(const m512 *lo_mask, const m512 *dup_mask, const m512 val) { m512 lo = and512(val, *lo_mask); m512 hi = and512(rshift64_m512(val, 4), *lo_mask); return shift_or_512_templ(dup_mask, lo, hi); } template static really_inline m512 prep_conf_teddy_512_templ(const m512 *lo_mask, const m512 *dup_mask, const u8 *ptr, const u64a *r_msk_base, u32 *c_0, u32 *c_16, u32 *c_32, u32 *c_48) { m512 lo = and512(load512(ptr), *lo_mask); m512 hi = and512(rshift64_m512(load512(ptr), 4), *lo_mask); *c_16 = *(ptr + 15); *c_32 = *(ptr + 31); *c_48 = *(ptr + 47); m512 r_msk = set8x64(0ULL, r_msk_base[*c_48], 0ULL, r_msk_base[*c_32], 0ULL, r_msk_base[*c_16], 0ULL, r_msk_base[*c_0]); *c_0 = *(ptr + 63); return or512(shift_or_512_templ(dup_mask, lo, hi), r_msk); } #define PREP_CONF_FN_512(ptr, n) \ prep_conf_teddy_512_templ(&lo_mask, dup_mask, ptr, r_msk_base, \ &c_0, &c_16, &c_32, &c_48) template hwlm_error_t fdr_exec_teddy_512_templ(const struct FDR *fdr, const struct FDR_Runtime_Args *a, hwlm_group_t control) { const u8 *buf_end = a->buf + a->len; const u8 *ptr = a->buf + a->start_offset; u32 floodBackoff = FLOOD_BACKOFF_START; const u8 *tryFloodDetect = a->firstFloodDetect; u32 last_match = ones_u32; const struct Teddy *teddy = (const struct Teddy *)fdr; const size_t iterBytes = 128; DEBUG_PRINTF("params: buf %p len %zu start_offset %zu\n", a->buf, a->len, a->start_offset); const m128 *maskBase = getMaskBase(teddy); m512 lo_mask = set1_64x8(0xf); m512 dup_mask[NMSK * 2]; dup_mask[0] = set1_4x128(maskBase[0]); dup_mask[1] = set1_4x128(maskBase[1]); if constexpr (NMSK > 1){ dup_mask[2] = set1_4x128(maskBase[2]); dup_mask[3] = set1_4x128(maskBase[3]); } if constexpr (NMSK > 2){ dup_mask[4] = set1_4x128(maskBase[4]); dup_mask[5] = set1_4x128(maskBase[5]); } if constexpr (NMSK > 3){ dup_mask[6] = set1_4x128(maskBase[6]); dup_mask[7] = set1_4x128(maskBase[7]); } const u32 *confBase = getConfBase(teddy); const u64a *r_msk_base = getReinforcedMaskBase(teddy, NMSK); u32 c_0 = 0x100; u32 c_16 = 0x100; u32 c_32 = 0x100; u32 c_48 = 0x100; const u8 *mainStart = ROUNDUP_PTR(ptr, 64); DEBUG_PRINTF("derive: ptr: %p mainstart %p\n", ptr, mainStart); if (ptr < mainStart) { ptr = mainStart - 64; m512 p_mask; m512 val_0 = vectoredLoad512(&p_mask, ptr, a->start_offset, a->buf, buf_end, a->buf_history, a->len_history, NMSK); m512 r_0 = prep_conf_teddy_no_reinforcement_512_templ(&lo_mask, dup_mask, val_0); r_0 = or512(r_0, p_mask); CONFIRM_TEDDY_512(r_0, 8, 0, VECTORING, ptr); ptr += 64; } if (ptr + 64 <= buf_end) { m512 r_0 = PREP_CONF_FN_512(ptr, NMSK); CONFIRM_TEDDY_512(r_0, 8, 0, VECTORING, ptr); ptr += 64; } for (; ptr + iterBytes <= buf_end; ptr += iterBytes) { __builtin_prefetch(ptr + (iterBytes * 4)); CHECK_FLOOD; m512 r_0 = PREP_CONF_FN_512(ptr, NMSK); CONFIRM_TEDDY_512(r_0, 8, 0, NOT_CAUTIOUS, ptr); m512 r_1 = PREP_CONF_FN_512(ptr + 64, NMSK); CONFIRM_TEDDY_512(r_1, 8, 64, NOT_CAUTIOUS, ptr); } if (ptr + 64 <= buf_end) { m512 r_0 = PREP_CONF_FN_512(ptr, NMSK); CONFIRM_TEDDY_512(r_0, 8, 0, NOT_CAUTIOUS, ptr); ptr += 64; } assert(ptr + 64 > buf_end); if (ptr < buf_end) { m512 p_mask; m512 val_0 = vectoredLoad512(&p_mask, ptr, 0, ptr, buf_end, a->buf_history, a->len_history, NMSK); m512 r_0 = prep_conf_teddy_no_reinforcement_512_templ(&lo_mask, dup_mask,val_0); r_0 = or512(r_0, p_mask); CONFIRM_TEDDY_512(r_0, 8, 0, VECTORING, ptr); } return HWLM_SUCCESS; } #define FDR_EXEC_TEDDY_FN fdr_exec_teddy_512_templ /* #endif // AVX512 vs AVX512VBMI * back to the original fully exclusive logic */ #elif defined(HAVE_AVX2) // not HAVE_AVX512 but HAVE_AVX2 reinforced teddy #ifdef ARCH_64_BIT hwlm_error_t confirm_teddy_64_256(m256 var, u8 bucket, u8 offset, CautionReason reason, const u8 *ptr, const struct FDR_Runtime_Args *a, const u32* confBase, hwlm_group_t *control, u32 *last_match) { if (unlikely(diff256(var, ones256()))) { m128 lo = movdq_lo(var); m128 hi = movdq_hi(var); u64a part1 = movq(lo); u64a part2 = movq(rshiftbyte_m128(lo, 8)); u64a part3 = movq(hi); u64a part4 = movq(rshiftbyte_m128(hi, 8)); CONF_CHUNK_64(part1, bucket, offset, reason, ptr, confBase, a, control, last_match); CONF_CHUNK_64(part2, bucket, offset + 8, reason, ptr, confBase, a, control, last_match); CONF_CHUNK_64(part3, bucket, offset + 16, reason, ptr, confBase, a, control, last_match); CONF_CHUNK_64(part4, bucket, offset + 24, reason, ptr, confBase, a, control, last_match); } return HWLM_SUCCESS; } #define confirm_teddy_256_f confirm_teddy_64_256 #else hwlm_error_t confirm_teddy_32_256(m256 var, u8 bucket, u8 offset, CautionReason reason, const u8 *ptr, const struct FDR_Runtime_Args *a, const u32* confBase, hwlm_group_t *control, u32 *last_match) { if (unlikely(diff256(var, ones256()))) { m128 lo = movdq_lo(var); m128 hi = movdq_hi(var); u32 part1 = movd(lo); u32 part2 = movd(rshiftbyte_m128(lo, 4)); u32 part3 = movd(rshiftbyte_m128(lo, 8)); u32 part4 = movd(rshiftbyte_m128(lo, 12)); u32 part5 = movd(hi); u32 part6 = movd(rshiftbyte_m128(hi, 4)); u32 part7 = movd(rshiftbyte_m128(hi, 8)); u32 part8 = movd(rshiftbyte_m128(hi, 12)); CONF_CHUNK_32(part1, bucket, offset, reason, ptr, confBase, a, control, last_match); CONF_CHUNK_32(part2, bucket, offset + 4, reason, ptr, confBase, a, control, last_match); CONF_CHUNK_32(part3, bucket, offset + 8, reason, ptr, confBase, a, control, last_match); CONF_CHUNK_32(part4, bucket, offset + 12, reason, ptr, confBase, a, control, last_match); CONF_CHUNK_32(part5, bucket, offset + 16, reason, ptr, confBase, a, control, last_match); CONF_CHUNK_32(part6, bucket, offset + 20, reason, ptr, confBase, a, control, last_match); CONF_CHUNK_32(part7, bucket, offset + 24, reason, ptr, confBase, a, control, last_match); CONF_CHUNK_32(part8, bucket, offset + 28, reason, ptr, confBase, a, control, last_match); } return HWLM_SUCCESS; } #define confirm_teddy_256_f confirm_teddy_32_256 #endif #define CONFIRM_TEDDY_256(...) if(confirm_teddy_256_f(__VA_ARGS__, a, confBase, &control, &last_match) == HWLM_TERMINATED)return HWLM_TERMINATED; /* static really_inline m256 vectoredLoad2x128(m256 *p_mask, const u8 *ptr, const size_t start_offset, const u8 *lo, const u8 *hi, const u8 *buf_history, size_t len_history, const u32 nMasks) { m128 p_mask128; m256 ret = set1_2x128(vectoredLoad128(&p_mask128, ptr, start_offset, lo, hi, buf_history, len_history, nMasks)); *p_mask = set1_2x128(p_mask128); return ret; } */ template static inline m256 shift_or_256_templ(const m256 *dup_mask, m256 lo, m256 hi){ return or256(lshift128_m256(or256(pshufb_m256(dup_mask[(NMSK-1)*2], lo), pshufb_m256(dup_mask[(NMSK*2)-1], hi)), (NMSK-1)), shift_or_256_templ(dup_mask, lo, hi)); } template<> m256 shift_or_256_templ<1>(const m256 *dup_mask, m256 lo, m256 hi){ return or256(pshufb_m256(dup_mask[0], lo), pshufb_m256(dup_mask[1], hi)); } template static really_inline m256 prep_conf_teddy_no_reinforcement_256_templ(const m256 *lo_mask, const m256 *dup_mask, const m256 val) { m256 lo = and256(val, *lo_mask); m256 hi = and256(rshift64_m256(val, 4), *lo_mask); return shift_or_256_templ(dup_mask, lo, hi); } template static really_inline m256 prep_conf_teddy_256_templ(const m256 *lo_mask, const m256 *dup_mask, const u8 *ptr, const u64a *r_msk_base, u32 *c_0, u32 *c_128) { m256 lo = and256(load256(ptr), *lo_mask); m256 hi = and256(rshift64_m256(load256(ptr), 4), *lo_mask); *c_128 = *(ptr + 15); m256 r_msk = set4x64(0ULL, r_msk_base[*c_128], 0ULL, r_msk_base[*c_0]); *c_0 = *(ptr + 31); return or256(shift_or_256_templ(dup_mask, lo, hi), r_msk); } #define PREP_CONF_FN_256_NO_REINFORCEMENT(val, n) \ prep_conf_teddy_no_reinforcement_256_templ(&lo_mask, dup_mask, val) #define PREP_CONF_FN_256(ptr, n) \ prep_conf_teddy_256_templ(&lo_mask, dup_mask, ptr, r_msk_base, &c_0, &c_128) template hwlm_error_t fdr_exec_teddy_256_templ(const struct FDR *fdr, const struct FDR_Runtime_Args *a, hwlm_group_t control) { const u8 *buf_end = a->buf + a->len; const u8 *ptr = a->buf + a->start_offset; u32 floodBackoff = FLOOD_BACKOFF_START; const u8 *tryFloodDetect = a->firstFloodDetect; u32 last_match = ones_u32; const struct Teddy *teddy = (const struct Teddy *)fdr; const size_t iterBytes = 64; DEBUG_PRINTF("params: buf %p len %zu start_offset %zu\n", a->buf, a->len, a->start_offset); const m128 *maskBase = getMaskBase(teddy); //PREPARE_MASKS_256; m256 lo_mask = set1_32x8(0xf); m256 dup_mask[NMSK * 2]; dup_mask[0] = set1_2x128(maskBase[0]); dup_mask[1] = set1_2x128(maskBase[1]); if constexpr (NMSK > 1){ dup_mask[2] = set1_2x128(maskBase[2]); dup_mask[3] = set1_2x128(maskBase[3]); } if constexpr (NMSK > 2){ dup_mask[4] = set1_2x128(maskBase[4]); dup_mask[5] = set1_2x128(maskBase[5]); } if constexpr (NMSK > 3){ dup_mask[6] = set1_2x128(maskBase[6]); dup_mask[7] = set1_2x128(maskBase[7]); } const u32 *confBase = getConfBase(teddy); const u64a *r_msk_base = getReinforcedMaskBase(teddy, NMSK); u32 c_0 = 0x100; u32 c_128 = 0x100; const u8 *mainStart = ROUNDUP_PTR(ptr, 32); DEBUG_PRINTF("derive: ptr: %p mainstart %p\n", ptr, mainStart); if (ptr < mainStart) { ptr = mainStart - 32; m256 p_mask; m256 val_0 = vectoredLoad256(&p_mask, ptr, a->start_offset, a->buf, buf_end, a->buf_history, a->len_history, NMSK); m256 r_0 = PREP_CONF_FN_256_NO_REINFORCEMENT(val_0, NMSK); r_0 = or256(r_0, p_mask); CONFIRM_TEDDY_256(r_0, 8, 0, VECTORING, ptr); ptr += 32; } if (ptr + 32 <= buf_end) { m256 r_0 = PREP_CONF_FN_256(ptr, NMSK); CONFIRM_TEDDY_256(r_0, 8, 0, VECTORING, ptr); ptr += 32; } for (; ptr + iterBytes <= buf_end; ptr += iterBytes) { __builtin_prefetch(ptr + (iterBytes * 4)); CHECK_FLOOD; m256 r_0 = PREP_CONF_FN_256(ptr, NMSK); CONFIRM_TEDDY_256(r_0, 8, 0, NOT_CAUTIOUS, ptr); m256 r_1 = PREP_CONF_FN_256(ptr + 32, NMSK); CONFIRM_TEDDY_256(r_1, 8, 32, NOT_CAUTIOUS, ptr); } if (ptr + 32 <= buf_end) { m256 r_0 = PREP_CONF_FN_256(ptr, NMSK); CONFIRM_TEDDY_256(r_0, 8, 0, NOT_CAUTIOUS, ptr); ptr += 32; } assert(ptr + 32 > buf_end); if (ptr < buf_end) { m256 p_mask; m256 val_0 = vectoredLoad256(&p_mask, ptr, 0, ptr, buf_end, a->buf_history, a->len_history, NMSK); m256 r_0 = PREP_CONF_FN_256_NO_REINFORCEMENT(val_0, NMSK); r_0 = or256(r_0, p_mask); CONFIRM_TEDDY_256(r_0, 8, 0, VECTORING, ptr); } return HWLM_SUCCESS; } #define FDR_EXEC_TEDDY_FN fdr_exec_teddy_256_templ #else // not defined HAVE_AVX2 #ifdef ARCH_64_BIT static really_inline hwlm_error_t confirm_teddy_64_128(m128 var, u8 bucket, u8 offset, CautionReason reason, const u8 *ptr, const struct FDR_Runtime_Args *a, const u32* confBase, hwlm_group_t *control, u32 *last_match) { if (unlikely(diff128(var, ones128()))) { u64a lo = 0; u64a hi = 0; u64a __attribute__((aligned(16))) vec[2]; store128(vec, var); lo = vec[0]; hi = vec[1]; CONF_CHUNK_64(lo, bucket, offset, reason, ptr, confBase, a, control, last_match); CONF_CHUNK_64(hi, bucket, offset + 8, reason, ptr, confBase, a, control, last_match); } return HWLM_SUCCESS; } #define confirm_teddy_128_f confirm_teddy_64_128 #else // 32/64 static really_inline hwlm_error_t confirm_teddy_32_128(m128 var, u8 bucket, u8 offset, CautionReason reason, const u8 *ptr, const struct FDR_Runtime_Args *a, const u32* confBase, hwlm_group_t *control, u32 *last_match) { if (unlikely(diff128(var, ones128()))) { u32 part1 = movd(var); u32 part2 = movd(rshiftbyte_m128(var, 4)); u32 part3 = movd(rshiftbyte_m128(var, 8)); u32 part4 = movd(rshiftbyte_m128(var, 12)); CONF_CHUNK_32(part1, bucket, offset, reason, ptr, confBase, a, control, last_match); CONF_CHUNK_32(part2, bucket, offset + 4, reason, ptr, confBase, a, control, last_match); CONF_CHUNK_32(part3, bucket, offset + 8, reason, ptr, confBase, a, control, last_match); CONF_CHUNK_32(part4, bucket, offset + 12, reason, ptr, confBase, a, control, last_match); } return HWLM_SUCCESS; } #define confirm_teddy_128_f confirm_teddy_32_128 #endif // 32/64 #define CONFIRM_TEDDY_128(...) if(confirm_teddy_128_f(__VA_ARGS__, a, confBase, &control, &last_match) == HWLM_TERMINATED)return HWLM_TERMINATED; template static really_inline m128 prep_conf_teddy_128_templ(const m128 *maskBase, m128 val) { m128 mask = set1_16x8(0xf); m128 lo = and128(val, mask); m128 hi = and128(rshift64_m128(val, 4), mask); m128 r1 = or128(pshufb_m128(maskBase[0 * 2], lo), pshufb_m128(maskBase[0 * 2 + 1], hi)); if constexpr (NMSK == 1) return r1; m128 res_1 = or128(pshufb_m128(maskBase[1 * 2], lo), pshufb_m128(maskBase[1 * 2 + 1], hi)); m128 old_1 = zeroes128(); m128 res_shifted_1 = palignr(res_1, old_1, 16 - 1); m128 r2 = or128(r1, res_shifted_1); if constexpr (NMSK == 2) return r2; m128 res_2 = or128(pshufb_m128(maskBase[2 * 2], lo), pshufb_m128(maskBase[2 * 2 + 1], hi)); m128 res_shifted_2 = palignr(res_2, old_1, 16 - 2); m128 r3 = or128(r2, res_shifted_2); if constexpr (NMSK == 3) return r3; m128 res_3 = or128(pshufb_m128(maskBase[3 * 2], lo), pshufb_m128(maskBase[3 * 2 + 1], hi)); m128 res_shifted_3 = palignr(res_3, old_1, 16 - 3); return or128(r3, res_shifted_3); } template hwlm_error_t fdr_exec_teddy_128_templ(const struct FDR *fdr, const struct FDR_Runtime_Args *a, hwlm_group_t control) { const u8 *buf_end = a->buf + a->len; const u8 *ptr = a->buf + a->start_offset; u32 floodBackoff = FLOOD_BACKOFF_START; const u8 *tryFloodDetect = a->firstFloodDetect; u32 last_match = ones_u32; const struct Teddy *teddy = reinterpret_cast(fdr); const size_t iterBytes = 32; DEBUG_PRINTF("params: buf %p len %zu start_offset %zu\n", a->buf, a->len, a->start_offset); const m128 *maskBase = getMaskBase(teddy); const u32 *confBase = getConfBase(teddy); const u8 *mainStart = ROUNDUP_PTR(ptr, 16); DEBUG_PRINTF("derive: ptr: %p mainstart %p\n", ptr, mainStart); if (ptr < mainStart) { ptr = mainStart - 16; m128 p_mask; m128 val_0 = vectoredLoad128(&p_mask, ptr, a->start_offset, a->buf, buf_end, a->buf_history, a->len_history, NMSK); m128 r_0 = prep_conf_teddy_128_templ(maskBase, val_0); r_0 = or128(r_0, p_mask); CONFIRM_TEDDY_128(r_0, 8, 0, VECTORING, ptr); ptr += 16; } if (ptr + 16 <= buf_end) { m128 r_0 = prep_conf_teddy_128_templ(maskBase, load128(ptr)); CONFIRM_TEDDY_128(r_0, 8, 0, VECTORING, ptr); ptr += 16; } for (; ptr + iterBytes <= buf_end; ptr += iterBytes) { __builtin_prefetch(ptr + (iterBytes * 4)); CHECK_FLOOD; m128 r_0 = prep_conf_teddy_128_templ(maskBase, load128(ptr)); CONFIRM_TEDDY_128(r_0, 8, 0, NOT_CAUTIOUS, ptr); m128 r_1 = prep_conf_teddy_128_templ(maskBase, load128(ptr + 16)); CONFIRM_TEDDY_128(r_1, 8, 16, NOT_CAUTIOUS, ptr); } if (ptr + 16 <= buf_end) { m128 r_0 = prep_conf_teddy_128_templ(maskBase, load128(ptr)); CONFIRM_TEDDY_128(r_0, 8, 0, NOT_CAUTIOUS, ptr); ptr += 16; } assert(ptr + 16 > buf_end); if (ptr < buf_end) { m128 p_mask; m128 val_0 = vectoredLoad128(&p_mask, ptr, 0, ptr, buf_end, a->buf_history, a->len_history, NMSK); m128 r_0 = prep_conf_teddy_128_templ(maskBase, val_0); r_0 = or128(r_0, p_mask); CONFIRM_TEDDY_128(r_0, 8, 0, VECTORING, ptr); } return HWLM_SUCCESS; } #define FDR_EXEC_TEDDY_FN fdr_exec_teddy_128_templ #endif // HAVE_AVX2 HAVE_AVX512 extern "C" { hwlm_error_t fdr_exec_teddy_msks1(const struct FDR *fdr, const struct FDR_Runtime_Args *a, hwlm_group_t control) { return FDR_EXEC_TEDDY_FN<1>(fdr, a, control); } hwlm_error_t fdr_exec_teddy_msks1_pck(const struct FDR *fdr, const struct FDR_Runtime_Args *a, hwlm_group_t control) { return FDR_EXEC_TEDDY_FN<1>(fdr, a, control); } hwlm_error_t fdr_exec_teddy_msks2(const struct FDR *fdr, const struct FDR_Runtime_Args *a, hwlm_group_t control) { return FDR_EXEC_TEDDY_FN<2>(fdr, a, control); } hwlm_error_t fdr_exec_teddy_msks2_pck(const struct FDR *fdr, const struct FDR_Runtime_Args *a, hwlm_group_t control) { return FDR_EXEC_TEDDY_FN<2>(fdr, a, control); } hwlm_error_t fdr_exec_teddy_msks3(const struct FDR *fdr, const struct FDR_Runtime_Args *a, hwlm_group_t control) { return FDR_EXEC_TEDDY_FN<3>(fdr, a, control); } hwlm_error_t fdr_exec_teddy_msks3_pck(const struct FDR *fdr, const struct FDR_Runtime_Args *a, hwlm_group_t control) { return FDR_EXEC_TEDDY_FN<3>(fdr, a, control); } hwlm_error_t fdr_exec_teddy_msks4(const struct FDR *fdr, const struct FDR_Runtime_Args *a, hwlm_group_t control) { return FDR_EXEC_TEDDY_FN<4>(fdr, a, control); } hwlm_error_t fdr_exec_teddy_msks4_pck(const struct FDR *fdr, const struct FDR_Runtime_Args *a, hwlm_group_t control) { return FDR_EXEC_TEDDY_FN<4>(fdr, a, control); } } // extern