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 | #include <rte_common.h> | |
| 9 | ||
| 10 | static inline uint64_t | |
| 11 | hash_xor_key8(void *key, void *mask, __rte_unused uint32_t key_size, | |
| 12 | uint64_t seed) | |
| 13 | { | |
| 14 | uint64_t *k = key; | |
| 15 | uint64_t *m = mask; | |
| 16 | uint64_t xor0; | |
| 17 | ||
| 18 | xor0 = seed ^ (k[0] & m[0]); | |
| 19 | ||
| 20 | return (xor0 >> 32) ^ xor0; | |
| 21 | } | |
| 22 | ||
| 23 | static inline uint64_t | |
| 24 | hash_xor_key16(void *key, void *mask, __rte_unused uint32_t key_size, | |
| 25 | uint64_t seed) | |
| 26 | { | |
| 27 | uint64_t *k = key; | |
| 28 | uint64_t *m = mask; | |
| 29 | uint64_t xor0; | |
| 30 | ||
| 31 | xor0 = ((k[0] & m[0]) ^ seed) ^ (k[1] & m[1]); | |
| 32 | ||
| 33 | return (xor0 >> 32) ^ xor0; | |
| 34 | } | |
| 35 | ||
| 36 | static inline uint64_t | |
| 37 | hash_xor_key24(void *key, void *mask, __rte_unused uint32_t key_size, | |
| 38 | uint64_t seed) | |
| 39 | { | |
| 40 | uint64_t *k = key; | |
| 41 | uint64_t *m = mask; | |
| 42 | uint64_t xor0; | |
| 43 | ||
| 44 | xor0 = ((k[0] & m[0]) ^ seed) ^ (k[1] & m[1]); | |
| 45 | ||
| 46 | xor0 ^= k[2] & m[2]; | |
| 47 | ||
| 48 | return (xor0 >> 32) ^ xor0; | |
| 49 | } | |
| 50 | ||
| 51 | static inline uint64_t | |
| 52 | hash_xor_key32(void *key, void *mask, __rte_unused uint32_t key_size, | |
| 53 | uint64_t seed) | |
| 54 | { | |
| 55 | uint64_t *k = key; | |
| 56 | uint64_t *m = mask; | |
| 57 | uint64_t xor0, xor1; | |
| 58 | ||
| 59 | xor0 = ((k[0] & m[0]) ^ seed) ^ (k[1] & m[1]); | |
| 60 | xor1 = (k[2] & m[2]) ^ (k[3] & m[3]); | |
| 61 | ||
| 62 | xor0 ^= xor1; | |
| 63 | ||
| 64 | return (xor0 >> 32) ^ xor0; | |
| 65 | } | |
| 66 | ||
| 67 | static inline uint64_t | |
| 68 | hash_xor_key40(void *key, void *mask, __rte_unused uint32_t key_size, | |
| 69 | uint64_t seed) | |
| 70 | { | |
| 71 | uint64_t *k = key; | |
| 72 | uint64_t *m = mask; | |
| 73 | uint64_t xor0, xor1; | |
| 74 | ||
| 75 | xor0 = ((k[0] & m[0]) ^ seed) ^ (k[1] & m[1]); | |
| 76 | xor1 = (k[2] & m[2]) ^ (k[3] & m[3]); | |
| 77 | ||
| 78 | xor0 ^= xor1; | |
| 79 | ||
| 80 | xor0 ^= k[4] & m[4]; | |
| 81 | ||
| 82 | return (xor0 >> 32) ^ xor0; | |
| 83 | } | |
| 84 | ||
| 85 | static inline uint64_t | |
| 86 | hash_xor_key48(void *key, void *mask, __rte_unused uint32_t key_size, | |
| 87 | uint64_t seed) | |
| 88 | { | |
| 89 | uint64_t *k = key; | |
| 90 | uint64_t *m = mask; | |
| 91 | uint64_t xor0, xor1, xor2; | |
| 92 | ||
| 93 | xor0 = ((k[0] & m[0]) ^ seed) ^ (k[1] & m[1]); | |
| 94 | xor1 = (k[2] & m[2]) ^ (k[3] & m[3]); | |
| 95 | xor2 = (k[4] & m[4]) ^ (k[5] & m[5]); | |
| 96 | ||
| 97 | xor0 ^= xor1; | |
| 98 | ||
| 99 | xor0 ^= xor2; | |
| 100 | ||
| 101 | return (xor0 >> 32) ^ xor0; | |
| 102 | } | |
| 103 | ||
| 104 | static inline uint64_t | |
| 105 | hash_xor_key56(void *key, void *mask, __rte_unused uint32_t key_size, | |
| 106 | uint64_t seed) | |
| 107 | { | |
| 108 | uint64_t *k = key; | |
| 109 | uint64_t *m = mask; | |
| 110 | uint64_t xor0, xor1, xor2; | |
| 111 | ||
| 112 | xor0 = ((k[0] & m[0]) ^ seed) ^ (k[1] & m[1]); | |
| 113 | xor1 = (k[2] & m[2]) ^ (k[3] & m[3]); | |
| 114 | xor2 = (k[4] & m[4]) ^ (k[5] & m[5]); | |
| 115 | ||
| 116 | xor0 ^= xor1; | |
| 117 | xor2 ^= k[6] & m[6]; | |
| 118 | ||
| 119 | xor0 ^= xor2; | |
| 120 | ||
| 121 | return (xor0 >> 32) ^ xor0; | |
| 122 | } | |
| 123 | ||
| 124 | static inline uint64_t | |
| 125 | hash_xor_key64(void *key, void *mask, __rte_unused uint32_t key_size, | |
| 126 | uint64_t seed) | |
| 127 | { | |
| 128 | uint64_t *k = key; | |
| 129 | uint64_t *m = mask; | |
| 130 | uint64_t xor0, xor1, xor2, xor3; | |
| 131 | ||
| 132 | xor0 = ((k[0] & m[0]) ^ seed) ^ (k[1] & m[1]); | |
| 133 | xor1 = (k[2] & m[2]) ^ (k[3] & m[3]); | |
| 134 | xor2 = (k[4] & m[4]) ^ (k[5] & m[5]); | |
| 135 | xor3 = (k[6] & m[6]) ^ (k[7] & m[7]); | |
| 136 | ||
| 137 | xor0 ^= xor1; | |
| 138 | xor2 ^= xor3; | |
| 139 | ||
| 140 | xor0 ^= xor2; | |
| 141 | ||
| 142 | return (xor0 >> 32) ^ xor0; | |
| 143 | } | |
| 144 | ||
| 145 | #if defined(RTE_ARCH_X86_64) | |
| 146 | ||
| 147 | #include <x86intrin.h> | |
| 148 | ||
| 149 | static inline uint64_t | |
| 150 | hash_crc_key8(void *key, void *mask, __rte_unused uint32_t key_size, | |
| 151 | uint64_t seed) | |
| 152 | { | |
| 153 | uint64_t *k = key; | |
| 154 | uint64_t *m = mask; | |
| 155 | uint64_t crc0; | |
| 156 | ||
| 157 | crc0 = _mm_crc32_u64(seed, k[0] & m[0]); | |
| 158 | ||
| 159 | return crc0; | |
| 160 | } | |
| 161 | ||
| 162 | static inline uint64_t | |
| 163 | hash_crc_key16(void *key, void *mask, __rte_unused uint32_t key_size, | |
| 164 | uint64_t seed) | |
| 165 | { | |
| 166 | uint64_t *k = key; | |
| 167 | uint64_t *m = mask; | |
| 168 | uint64_t k0, crc0, crc1; | |
| 169 | ||
| 170 | k0 = k[0] & m[0]; | |
| 171 | ||
| 172 | crc0 = _mm_crc32_u64(k0, seed); | |
| 173 | crc1 = _mm_crc32_u64(k0 >> 32, k[1] & m[1]); | |
| 174 | ||
| 175 | crc0 ^= crc1; | |
| 176 | ||
| 177 | return crc0; | |
| 178 | } | |
| 179 | ||
| 180 | static inline uint64_t | |
| 181 | hash_crc_key24(void *key, void *mask, __rte_unused uint32_t key_size, | |
| 182 | uint64_t seed) | |
| 183 | { | |
| 184 | uint64_t *k = key; | |
| 185 | uint64_t *m = mask; | |
| 186 | uint64_t k0, k2, crc0, crc1; | |
| 187 | ||
| 188 | k0 = k[0] & m[0]; | |
| 189 | k2 = k[2] & m[2]; | |
| 190 | ||
| 191 | crc0 = _mm_crc32_u64(k0, seed); | |
| 192 | crc1 = _mm_crc32_u64(k0 >> 32, k[1] & m[1]); | |
| 193 | ||
| 194 | crc0 = _mm_crc32_u64(crc0, k2); | |
| 195 | ||
| 196 | crc0 ^= crc1; | |
| 197 | ||
| 198 | return crc0; | |
| 199 | } | |
| 200 | ||
| 201 | static inline uint64_t | |
| 202 | hash_crc_key32(void *key, void *mask, __rte_unused uint32_t key_size, | |
| 203 | uint64_t seed) | |
| 204 | { | |
| 205 | uint64_t *k = key; | |
| 206 | uint64_t *m = mask; | |
| 207 | uint64_t k0, k2, crc0, crc1, crc2, crc3; | |
| 208 | ||
| 209 | k0 = k[0] & m[0]; | |
| 210 | k2 = k[2] & m[2]; | |
| 211 | ||
| 212 | crc0 = _mm_crc32_u64(k0, seed); | |
| 213 | crc1 = _mm_crc32_u64(k0 >> 32, k[1] & m[1]); | |
| 214 | ||
| 215 | crc2 = _mm_crc32_u64(k2, k[3] & m[3]); | |
| 216 | crc3 = k2 >> 32; | |
| 217 | ||
| 218 | crc0 = _mm_crc32_u64(crc0, crc1); | |
| 219 | crc1 = _mm_crc32_u64(crc2, crc3); | |
| 220 | ||
| 221 | crc0 ^= crc1; | |
| 222 | ||
| 223 | return crc0; | |
| 224 | } | |
| 225 | ||
| 226 | static inline uint64_t | |
| 227 | hash_crc_key40(void *key, void *mask, __rte_unused uint32_t key_size, | |
| 228 | uint64_t seed) | |
| 229 | { | |
| 230 | uint64_t *k = key; | |
| 231 | uint64_t *m = mask; | |
| 232 | uint64_t k0, k2, crc0, crc1, crc2, crc3; | |
| 233 | ||
| 234 | k0 = k[0] & m[0]; | |
| 235 | k2 = k[2] & m[2]; | |
| 236 | ||
| 237 | crc0 = _mm_crc32_u64(k0, seed); | |
| 238 | crc1 = _mm_crc32_u64(k0 >> 32, k[1] & m[1]); | |
| 239 | ||
| 240 | crc2 = _mm_crc32_u64(k2, k[3] & m[3]); | |
| 241 | crc3 = _mm_crc32_u64(k2 >> 32, k[4] & m[4]); | |
| 242 | ||
| 243 | crc0 = _mm_crc32_u64(crc0, crc1); | |
| 244 | crc1 = _mm_crc32_u64(crc2, crc3); | |
| 245 | ||
| 246 | crc0 ^= crc1; | |
| 247 | ||
| 248 | return crc0; | |
| 249 | } | |
| 250 | ||
| 251 | static inline uint64_t | |
| 252 | hash_crc_key48(void *key, void *mask, __rte_unused uint32_t key_size, | |
| 253 | uint64_t seed) | |
| 254 | { | |
| 255 | uint64_t *k = key; | |
| 256 | uint64_t *m = mask; | |
| 257 | uint64_t k0, k2, k5, crc0, crc1, crc2, crc3; | |
| 258 | ||
| 259 | k0 = k[0] & m[0]; | |
| 260 | k2 = k[2] & m[2]; | |
| 261 | k5 = k[5] & m[5]; | |
| 262 | ||
| 263 | crc0 = _mm_crc32_u64(k0, seed); | |
| 264 | crc1 = _mm_crc32_u64(k0 >> 32, k[1] & m[1]); | |
| 265 | ||
| 266 | crc2 = _mm_crc32_u64(k2, k[3] & m[3]); | |
| 267 | crc3 = _mm_crc32_u64(k2 >> 32, k[4] & m[4]); | |
| 268 | ||
| 269 | crc0 = _mm_crc32_u64(crc0, (crc1 << 32) ^ crc2); | |
| 270 | crc1 = _mm_crc32_u64(crc3, k5); | |
| 271 | ||
| 272 | crc0 ^= crc1; | |
| 273 | ||
| 274 | return crc0; | |
| 275 | } | |
| 276 | ||
| 277 | static inline uint64_t | |
| 278 | hash_crc_key56(void *key, void *mask, __rte_unused uint32_t key_size, | |
| 279 | uint64_t seed) | |
| 280 | { | |
| 281 | uint64_t *k = key; | |
| 282 | uint64_t *m = mask; | |
| 283 | uint64_t k0, k2, k5, crc0, crc1, crc2, crc3, crc4, crc5; | |
| 284 | ||
| 285 | k0 = k[0] & m[0]; | |
| 286 | k2 = k[2] & m[2]; | |
| 287 | k5 = k[5] & m[5]; | |
| 288 | ||
| 289 | crc0 = _mm_crc32_u64(k0, seed); | |
| 290 | crc1 = _mm_crc32_u64(k0 >> 32, k[1] & m[1]); | |
| 291 | ||
| 292 | crc2 = _mm_crc32_u64(k2, k[3] & m[3]); | |
| 293 | crc3 = _mm_crc32_u64(k2 >> 32, k[4] & m[4]); | |
| 294 | ||
| 295 | crc4 = _mm_crc32_u64(k5, k[6] & m[6]); | |
| 296 | crc5 = k5 >> 32; | |
| 297 | ||
| 298 | crc0 = _mm_crc32_u64(crc0, (crc1 << 32) ^ crc2); | |
| 299 | crc1 = _mm_crc32_u64(crc3, (crc4 << 32) ^ crc5); | |
| 300 | ||
| 301 | crc0 ^= crc1; | |
| 302 | ||
| 303 | return crc0; | |
| 304 | } | |
| 305 | ||
| 306 | static inline uint64_t | |
| 307 | hash_crc_key64(void *key, void *mask, __rte_unused uint32_t key_size, | |
| 308 | uint64_t seed) | |
| 309 | { | |
| 310 | uint64_t *k = key; | |
| 311 | uint64_t *m = mask; | |
| 312 | uint64_t k0, k2, k5, crc0, crc1, crc2, crc3, crc4, crc5; | |
| 313 | ||
| 314 | k0 = k[0] & m[0]; | |
| 315 | k2 = k[2] & m[2]; | |
| 316 | k5 = k[5] & m[5]; | |
| 317 | ||
| 318 | crc0 = _mm_crc32_u64(k0, seed); | |
| 319 | crc1 = _mm_crc32_u64(k0 >> 32, k[1] & m[1]); | |
| 320 | ||
| 321 | crc2 = _mm_crc32_u64(k2, k[3] & m[3]); | |
| 322 | crc3 = _mm_crc32_u64(k2 >> 32, k[4] & m[4]); | |
| 323 | ||
| 324 | crc4 = _mm_crc32_u64(k5, k[6] & m[6]); | |
| 325 | crc5 = _mm_crc32_u64(k5 >> 32, k[7] & m[7]); | |
| 326 | ||
| 327 | crc0 = _mm_crc32_u64(crc0, (crc1 << 32) ^ crc2); | |
| 328 | crc1 = _mm_crc32_u64(crc3, (crc4 << 32) ^ crc5); | |
| 329 | ||
| 330 | crc0 ^= crc1; | |
| 331 | ||
| 332 | return crc0; | |
| 333 | } | |
| 334 | ||
| 335 | #define hash_default_key8 hash_crc_key8 | |
| 336 | #define hash_default_key16 hash_crc_key16 | |
| 337 | #define hash_default_key24 hash_crc_key24 | |
| 338 | #define hash_default_key32 hash_crc_key32 | |
| 339 | #define hash_default_key40 hash_crc_key40 | |
| 340 | #define hash_default_key48 hash_crc_key48 | |
| 341 | #define hash_default_key56 hash_crc_key56 | |
| 342 | #define hash_default_key64 hash_crc_key64 | |
| 343 | ||
| 344 | #elif defined(RTE_ARCH_ARM64) | |
| 345 | #include "hash_func_arm64.h" | |
| 346 | #else | |
| 347 | ||
| 348 | #define hash_default_key8 hash_xor_key8 | |
| 349 | #define hash_default_key16 hash_xor_key16 | |
| 350 | #define hash_default_key24 hash_xor_key24 | |
| 351 | #define hash_default_key32 hash_xor_key32 | |
| 352 | #define hash_default_key40 hash_xor_key40 | |
| 353 | #define hash_default_key48 hash_xor_key48 | |
| 354 | #define hash_default_key56 hash_xor_key56 | |
| 355 | #define hash_default_key64 hash_xor_key64 | |
| 356 | ||
| 357 | #endif | |
| 358 | ||
| 359 | #endif |