projects / ceph.git / blame
| Commit | Line | Data |
|---|---|---|
| 11fdf7f2 TL |
1 | /* SPDX-License-Identifier: BSD-3-Clause |
| 2 | * Copyright(c) 2010-2018 Intel Corporation | |
| 3 | */ | |
| 4 | ||
| 5 | #ifndef __INCLUDE_HASH_FUNC_H__ | |
| 6 | #define __INCLUDE_HASH_FUNC_H__ | |
| 7 | ||
| 8 | static inline uint64_t | |
| 9 | hash_xor_key8(void *key, void *mask, __rte_unused uint32_t key_size, | |
| 10 | uint64_t seed) | |
| 11 | { | |
| 12 | uint64_t *k = key; | |
| 13 | uint64_t *m = mask; | |
| 14 | uint64_t xor0; | |
| 15 | ||
| 16 | xor0 = seed ^ (k[0] & m[0]); | |
| 17 | ||
| 18 | return (xor0 >> 32) ^ xor0; | |
| 19 | } | |
| 20 | ||
| 21 | static inline uint64_t | |
| 22 | hash_xor_key16(void *key, void *mask, __rte_unused uint32_t key_size, | |
| 23 | uint64_t seed) | |
| 24 | { | |
| 25 | uint64_t *k = key; | |
| 26 | uint64_t *m = mask; | |
| 27 | uint64_t xor0; | |
| 28 | ||
| 29 | xor0 = ((k[0] & m[0]) ^ seed) ^ (k[1] & m[1]); | |
| 30 | ||
| 31 | return (xor0 >> 32) ^ xor0; | |
| 32 | } | |
| 33 | ||
| 34 | static inline uint64_t | |
| 35 | hash_xor_key24(void *key, void *mask, __rte_unused uint32_t key_size, | |
| 36 | uint64_t seed) | |
| 37 | { | |
| 38 | uint64_t *k = key; | |
| 39 | uint64_t *m = mask; | |
| 40 | uint64_t xor0; | |
| 41 | ||
| 42 | xor0 = ((k[0] & m[0]) ^ seed) ^ (k[1] & m[1]); | |
| 43 | ||
| 44 | xor0 ^= k[2] & m[2]; | |
| 45 | ||
| 46 | return (xor0 >> 32) ^ xor0; | |
| 47 | } | |
| 48 | ||
| 49 | static inline uint64_t | |
| 50 | hash_xor_key32(void *key, void *mask, __rte_unused uint32_t key_size, | |
| 51 | uint64_t seed) | |
| 52 | { | |
| 53 | uint64_t *k = key; | |
| 54 | uint64_t *m = mask; | |
| 55 | uint64_t xor0, xor1; | |
| 56 | ||
| 57 | xor0 = ((k[0] & m[0]) ^ seed) ^ (k[1] & m[1]); | |
| 58 | xor1 = (k[2] & m[2]) ^ (k[3] & m[3]); | |
| 59 | ||
| 60 | xor0 ^= xor1; | |
| 61 | ||
| 62 | return (xor0 >> 32) ^ xor0; | |
| 63 | } | |
| 64 | ||
| 65 | static inline uint64_t | |
| 66 | hash_xor_key40(void *key, void *mask, __rte_unused uint32_t key_size, | |
| 67 | uint64_t seed) | |
| 68 | { | |
| 69 | uint64_t *k = key; | |
| 70 | uint64_t *m = mask; | |
| 71 | uint64_t xor0, xor1; | |
| 72 | ||
| 73 | xor0 = ((k[0] & m[0]) ^ seed) ^ (k[1] & m[1]); | |
| 74 | xor1 = (k[2] & m[2]) ^ (k[3] & m[3]); | |
| 75 | ||
| 76 | xor0 ^= xor1; | |
| 77 | ||
| 78 | xor0 ^= k[4] & m[4]; | |
| 79 | ||
| 80 | return (xor0 >> 32) ^ xor0; | |
| 81 | } | |
| 82 | ||
| 83 | static inline uint64_t | |
| 84 | hash_xor_key48(void *key, void *mask, __rte_unused uint32_t key_size, | |
| 85 | uint64_t seed) | |
| 86 | { | |
| 87 | uint64_t *k = key; | |
| 88 | uint64_t *m = mask; | |
| 89 | uint64_t xor0, xor1, xor2; | |
| 90 | ||
| 91 | xor0 = ((k[0] & m[0]) ^ seed) ^ (k[1] & m[1]); | |
| 92 | xor1 = (k[2] & m[2]) ^ (k[3] & m[3]); | |
| 93 | xor2 = (k[4] & m[4]) ^ (k[5] & m[5]); | |
| 94 | ||
| 95 | xor0 ^= xor1; | |
| 96 | ||
| 97 | xor0 ^= xor2; | |
| 98 | ||
| 99 | return (xor0 >> 32) ^ xor0; | |
| 100 | } | |
| 101 | ||
| 102 | static inline uint64_t | |
| 103 | hash_xor_key56(void *key, void *mask, __rte_unused uint32_t key_size, | |
| 104 | uint64_t seed) | |
| 105 | { | |
| 106 | uint64_t *k = key; | |
| 107 | uint64_t *m = mask; | |
| 108 | uint64_t xor0, xor1, xor2; | |
| 109 | ||
| 110 | xor0 = ((k[0] & m[0]) ^ seed) ^ (k[1] & m[1]); | |
| 111 | xor1 = (k[2] & m[2]) ^ (k[3] & m[3]); | |
| 112 | xor2 = (k[4] & m[4]) ^ (k[5] & m[5]); | |
| 113 | ||
| 114 | xor0 ^= xor1; | |
| 115 | xor2 ^= k[6] & m[6]; | |
| 116 | ||
| 117 | xor0 ^= xor2; | |
| 118 | ||
| 119 | return (xor0 >> 32) ^ xor0; | |
| 120 | } | |
| 121 | ||
| 122 | static inline uint64_t | |
| 123 | hash_xor_key64(void *key, void *mask, __rte_unused uint32_t key_size, | |
| 124 | uint64_t seed) | |
| 125 | { | |
| 126 | uint64_t *k = key; | |
| 127 | uint64_t *m = mask; | |
| 128 | uint64_t xor0, xor1, xor2, xor3; | |
| 129 | ||
| 130 | xor0 = ((k[0] & m[0]) ^ seed) ^ (k[1] & m[1]); | |
| 131 | xor1 = (k[2] & m[2]) ^ (k[3] & m[3]); | |
| 132 | xor2 = (k[4] & m[4]) ^ (k[5] & m[5]); | |
| 133 | xor3 = (k[6] & m[6]) ^ (k[7] & m[7]); | |
| 134 | ||
| 135 | xor0 ^= xor1; | |
| 136 | xor2 ^= xor3; | |
| 137 | ||
| 138 | xor0 ^= xor2; | |
| 139 | ||
| 140 | return (xor0 >> 32) ^ xor0; | |
| 141 | } | |
| 142 | ||
| 143 | #if defined(RTE_ARCH_X86_64) | |
| 144 | ||
| 145 | #include <x86intrin.h> | |
| 146 | ||
| 147 | static inline uint64_t | |
| 148 | hash_crc_key8(void *key, void *mask, __rte_unused uint32_t key_size, | |
| 149 | uint64_t seed) | |
| 150 | { | |
| 151 | uint64_t *k = key; | |
| 152 | uint64_t *m = mask; | |
| 153 | uint64_t crc0; | |
| 154 | ||
| 155 | crc0 = _mm_crc32_u64(seed, k[0] & m[0]); | |
| 156 | ||
| 157 | return crc0; | |
| 158 | } | |
| 159 | ||
| 160 | static inline uint64_t | |
| 161 | hash_crc_key16(void *key, void *mask, __rte_unused uint32_t key_size, | |
| 162 | uint64_t seed) | |
| 163 | { | |
| 164 | uint64_t *k = key; | |
| 165 | uint64_t *m = mask; | |
| 166 | uint64_t k0, crc0, crc1; | |
| 167 | ||
| 168 | k0 = k[0] & m[0]; | |
| 169 | ||
| 170 | crc0 = _mm_crc32_u64(k0, seed); | |
| 171 | crc1 = _mm_crc32_u64(k0 >> 32, k[1] & m[1]); | |
| 172 | ||
| 173 | crc0 ^= crc1; | |
| 174 | ||
| 175 | return crc0; | |
| 176 | } | |
| 177 | ||
| 178 | static inline uint64_t | |
| 179 | hash_crc_key24(void *key, void *mask, __rte_unused uint32_t key_size, | |
| 180 | uint64_t seed) | |
| 181 | { | |
| 182 | uint64_t *k = key; | |
| 183 | uint64_t *m = mask; | |
| 184 | uint64_t k0, k2, crc0, crc1; | |
| 185 | ||
| 186 | k0 = k[0] & m[0]; | |
| 187 | k2 = k[2] & m[2]; | |
| 188 | ||
| 189 | crc0 = _mm_crc32_u64(k0, seed); | |
| 190 | crc1 = _mm_crc32_u64(k0 >> 32, k[1] & m[1]); | |
| 191 | ||
| 192 | crc0 = _mm_crc32_u64(crc0, k2); | |
| 193 | ||
| 194 | crc0 ^= crc1; | |
| 195 | ||
| 196 | return crc0; | |
| 197 | } | |
| 198 | ||
| 199 | static inline uint64_t | |
| 200 | hash_crc_key32(void *key, void *mask, __rte_unused uint32_t key_size, | |
| 201 | uint64_t seed) | |
| 202 | { | |
| 203 | uint64_t *k = key; | |
| 204 | uint64_t *m = mask; | |
| 205 | uint64_t k0, k2, crc0, crc1, crc2, crc3; | |
| 206 | ||
| 207 | k0 = k[0] & m[0]; | |
| 208 | k2 = k[2] & m[2]; | |
| 209 | ||
| 210 | crc0 = _mm_crc32_u64(k0, seed); | |
| 211 | crc1 = _mm_crc32_u64(k0 >> 32, k[1] & m[1]); | |
| 212 | ||
| 213 | crc2 = _mm_crc32_u64(k2, k[3] & m[3]); | |
| 214 | crc3 = k2 >> 32; | |
| 215 | ||
| 216 | crc0 = _mm_crc32_u64(crc0, crc1); | |
| 217 | crc1 = _mm_crc32_u64(crc2, crc3); | |
| 218 | ||
| 219 | crc0 ^= crc1; | |
| 220 | ||
| 221 | return crc0; | |
| 222 | } | |
| 223 | ||
| 224 | static inline uint64_t | |
| 225 | hash_crc_key40(void *key, void *mask, __rte_unused uint32_t key_size, | |
| 226 | uint64_t seed) | |
| 227 | { | |
| 228 | uint64_t *k = key; | |
| 229 | uint64_t *m = mask; | |
| 230 | uint64_t k0, k2, crc0, crc1, crc2, crc3; | |
| 231 | ||
| 232 | k0 = k[0] & m[0]; | |
| 233 | k2 = k[2] & m[2]; | |
| 234 | ||
| 235 | crc0 = _mm_crc32_u64(k0, seed); | |
| 236 | crc1 = _mm_crc32_u64(k0 >> 32, k[1] & m[1]); | |
| 237 | ||
| 238 | crc2 = _mm_crc32_u64(k2, k[3] & m[3]); | |
| 239 | crc3 = _mm_crc32_u64(k2 >> 32, k[4] & m[4]); | |
| 240 | ||
| 241 | crc0 = _mm_crc32_u64(crc0, crc1); | |
| 242 | crc1 = _mm_crc32_u64(crc2, crc3); | |
| 243 | ||
| 244 | crc0 ^= crc1; | |
| 245 | ||
| 246 | return crc0; | |
| 247 | } | |
| 248 | ||
| 249 | static inline uint64_t | |
| 250 | hash_crc_key48(void *key, void *mask, __rte_unused uint32_t key_size, | |
| 251 | uint64_t seed) | |
| 252 | { | |
| 253 | uint64_t *k = key; | |
| 254 | uint64_t *m = mask; | |
| 255 | uint64_t k0, k2, k5, crc0, crc1, crc2, crc3; | |
| 256 | ||
| 257 | k0 = k[0] & m[0]; | |
| 258 | k2 = k[2] & m[2]; | |
| 259 | k5 = k[5] & m[5]; | |
| 260 | ||
| 261 | crc0 = _mm_crc32_u64(k0, seed); | |
| 262 | crc1 = _mm_crc32_u64(k0 >> 32, k[1] & m[1]); | |
| 263 | ||
| 264 | crc2 = _mm_crc32_u64(k2, k[3] & m[3]); | |
| 265 | crc3 = _mm_crc32_u64(k2 >> 32, k[4] & m[4]); | |
| 266 | ||
| 267 | crc0 = _mm_crc32_u64(crc0, (crc1 << 32) ^ crc2); | |
| 268 | crc1 = _mm_crc32_u64(crc3, k5); | |
| 269 | ||
| 270 | crc0 ^= crc1; | |
| 271 | ||
| 272 | return crc0; | |
| 273 | } | |
| 274 | ||
| 275 | static inline uint64_t | |
| 276 | hash_crc_key56(void *key, void *mask, __rte_unused uint32_t key_size, | |
| 277 | uint64_t seed) | |
| 278 | { | |
| 279 | uint64_t *k = key; | |
| 280 | uint64_t *m = mask; | |
| 281 | uint64_t k0, k2, k5, crc0, crc1, crc2, crc3, crc4, crc5; | |
| 282 | ||
| 283 | k0 = k[0] & m[0]; | |
| 284 | k2 = k[2] & m[2]; | |
| 285 | k5 = k[5] & m[5]; | |
| 286 | ||
| 287 | crc0 = _mm_crc32_u64(k0, seed); | |
| 288 | crc1 = _mm_crc32_u64(k0 >> 32, k[1] & m[1]); | |
| 289 | ||
| 290 | crc2 = _mm_crc32_u64(k2, k[3] & m[3]); | |
| 291 | crc3 = _mm_crc32_u64(k2 >> 32, k[4] & m[4]); | |
| 292 | ||
| 293 | crc4 = _mm_crc32_u64(k5, k[6] & m[6]); | |
| 294 | crc5 = k5 >> 32; | |
| 295 | ||
| 296 | crc0 = _mm_crc32_u64(crc0, (crc1 << 32) ^ crc2); | |
| 297 | crc1 = _mm_crc32_u64(crc3, (crc4 << 32) ^ crc5); | |
| 298 | ||
| 299 | crc0 ^= crc1; | |
| 300 | ||
| 301 | return crc0; | |
| 302 | } | |
| 303 | ||
| 304 | static inline uint64_t | |
| 305 | hash_crc_key64(void *key, void *mask, __rte_unused uint32_t key_size, | |
| 306 | uint64_t seed) | |
| 307 | { | |
| 308 | uint64_t *k = key; | |
| 309 | uint64_t *m = mask; | |
| 310 | uint64_t k0, k2, k5, crc0, crc1, crc2, crc3, crc4, crc5; | |
| 311 | ||
| 312 | k0 = k[0] & m[0]; | |
| 313 | k2 = k[2] & m[2]; | |
| 314 | k5 = k[5] & m[5]; | |
| 315 | ||
| 316 | crc0 = _mm_crc32_u64(k0, seed); | |
| 317 | crc1 = _mm_crc32_u64(k0 >> 32, k[1] & m[1]); | |
| 318 | ||
| 319 | crc2 = _mm_crc32_u64(k2, k[3] & m[3]); | |
| 320 | crc3 = _mm_crc32_u64(k2 >> 32, k[4] & m[4]); | |
| 321 | ||
| 322 | crc4 = _mm_crc32_u64(k5, k[6] & m[6]); | |
| 323 | crc5 = _mm_crc32_u64(k5 >> 32, k[7] & m[7]); | |
| 324 | ||
| 325 | crc0 = _mm_crc32_u64(crc0, (crc1 << 32) ^ crc2); | |
| 326 | crc1 = _mm_crc32_u64(crc3, (crc4 << 32) ^ crc5); | |
| 327 | ||
| 328 | crc0 ^= crc1; | |
| 329 | ||
| 330 | return crc0; | |
| 331 | } | |
| 332 | ||
| 333 | #define hash_default_key8 hash_crc_key8 | |
| 334 | #define hash_default_key16 hash_crc_key16 | |
| 335 | #define hash_default_key24 hash_crc_key24 | |
| 336 | #define hash_default_key32 hash_crc_key32 | |
| 337 | #define hash_default_key40 hash_crc_key40 | |
| 338 | #define hash_default_key48 hash_crc_key48 | |
| 339 | #define hash_default_key56 hash_crc_key56 | |
| 340 | #define hash_default_key64 hash_crc_key64 | |
| 341 | ||
| 342 | #elif defined(RTE_ARCH_ARM64) | |
| 343 | #include "hash_func_arm64.h" | |
| 344 | #else | |
| 345 | ||
| 346 | #define hash_default_key8 hash_xor_key8 | |
| 347 | #define hash_default_key16 hash_xor_key16 | |
| 348 | #define hash_default_key24 hash_xor_key24 | |
| 349 | #define hash_default_key32 hash_xor_key32 | |
| 350 | #define hash_default_key40 hash_xor_key40 | |
| 351 | #define hash_default_key48 hash_xor_key48 | |
| 352 | #define hash_default_key56 hash_xor_key56 | |
| 353 | #define hash_default_key64 hash_xor_key64 | |
| 354 | ||
| 355 | #endif | |
| 356 | ||
| 357 | #endif |