diff options
Diffstat (limited to 'drivers/net/softnic/hash_func_arm64.h')
| -rw-r--r-- | drivers/net/softnic/hash_func_arm64.h | 261 |
1 files changed, 261 insertions, 0 deletions
diff --git a/drivers/net/softnic/hash_func_arm64.h b/drivers/net/softnic/hash_func_arm64.h new file mode 100644 index 00000000..ae6c0f41 --- /dev/null +++ b/drivers/net/softnic/hash_func_arm64.h @@ -0,0 +1,261 @@ +/*- + * BSD LICENSE + * + * Copyright(c) 2017 Linaro Limited. All rights reserved. + * All rights reserved. + * + * 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. + */ +#ifndef __HASH_FUNC_ARM64_H__ +#define __HASH_FUNC_ARM64_H__ + +#define _CRC32CX(crc, val) \ + __asm__("crc32cx %w[c], %w[c], %x[v]":[c] "+r" (crc):[v] "r" (val)) + +static inline uint64_t +hash_crc_key8(void *key, void *mask, __rte_unused uint32_t key_size, + uint64_t seed) +{ + uint64_t *k = key; + uint64_t *m = mask; + uint32_t crc0; + + crc0 = seed; + _CRC32CX(crc0, k[0] & m[0]); + + return crc0; +} + +static inline uint64_t +hash_crc_key16(void *key, void *mask, __rte_unused uint32_t key_size, + uint64_t seed) +{ + uint64_t *k = key, k0; + uint64_t *m = mask; + uint32_t crc0, crc1; + + k0 = k[0] & m[0]; + + crc0 = k0; + _CRC32CX(crc0, seed); + crc1 = k0 >> 32; + _CRC32CX(crc1, k[1] & m[1]); + + crc0 ^= crc1; + + return crc0; +} + +static inline uint64_t +hash_crc_key24(void *key, void *mask, __rte_unused uint32_t key_size, + uint64_t seed) +{ + uint64_t *k = key, k0, k2; + uint64_t *m = mask; + uint32_t crc0, crc1; + + k0 = k[0] & m[0]; + k2 = k[2] & m[2]; + + crc0 = k0; + _CRC32CX(crc0, seed); + crc1 = k0 >> 32; + _CRC32CX(crc1, k[1] & m[1]); + + _CRC32CX(crc0, k2); + + crc0 ^= crc1; + + return crc0; +} + +static inline uint64_t +hash_crc_key32(void *key, void *mask, __rte_unused uint32_t key_size, + uint64_t seed) +{ + uint64_t *k = key, k0, k2; + uint64_t *m = mask; + uint32_t crc0, crc1, crc2, crc3; + + k0 = k[0] & m[0]; + k2 = k[2] & m[2]; + + crc0 = k0; + _CRC32CX(crc0, seed); + crc1 = k0 >> 32; + _CRC32CX(crc1, k[1] & m[1]); + + crc2 = k2; + _CRC32CX(crc2, k[3] & m[3]); + crc3 = k2 >> 32; + + _CRC32CX(crc0, crc1); + _CRC32CX(crc2, crc3); + + crc0 ^= crc2; + + return crc0; +} + +static inline uint64_t +hash_crc_key40(void *key, void *mask, __rte_unused uint32_t key_size, + uint64_t seed) +{ + uint64_t *k = key, k0, k2; + uint64_t *m = mask; + uint32_t crc0, crc1, crc2, crc3; + + k0 = k[0] & m[0]; + k2 = k[2] & m[2]; + + crc0 = k0; + _CRC32CX(crc0, seed); + crc1 = k0 >> 32; + _CRC32CX(crc1, k[1] & m[1]); + + crc2 = k2; + _CRC32CX(crc2, k[3] & m[3]); + crc3 = k2 >> 32; + _CRC32CX(crc3, k[4] & m[4]); + + _CRC32CX(crc0, crc1); + _CRC32CX(crc2, crc3); + + crc0 ^= crc2; + + return crc0; +} + +static inline uint64_t +hash_crc_key48(void *key, void *mask, __rte_unused uint32_t key_size, + uint64_t seed) +{ + uint64_t *k = key, k0, k2, k5; + uint64_t *m = mask; + uint32_t crc0, crc1, crc2, crc3; + + k0 = k[0] & m[0]; + k2 = k[2] & m[2]; + k5 = k[5] & m[5]; + + crc0 = k0; + _CRC32CX(crc0, seed); + crc1 = k0 >> 32; + _CRC32CX(crc1, k[1] & m[1]); + + crc2 = k2; + _CRC32CX(crc2, k[3] & m[3]); + crc3 = k2 >> 32; + _CRC32CX(crc3, k[4] & m[4]); + + _CRC32CX(crc0, ((uint64_t)crc1 << 32) ^ crc2); + _CRC32CX(crc3, k5); + + crc0 ^= crc3; + + return crc0; +} + +static inline uint64_t +hash_crc_key56(void *key, void *mask, __rte_unused uint32_t key_size, + uint64_t seed) +{ + uint64_t *k = key, k0, k2, k5; + uint64_t *m = mask; + uint32_t crc0, crc1, crc2, crc3, crc4, crc5; + + k0 = k[0] & m[0]; + k2 = k[2] & m[2]; + k5 = k[5] & m[5]; + + crc0 = k0; + _CRC32CX(crc0, seed); + crc1 = k0 >> 32; + _CRC32CX(crc1, k[1] & m[1]); + + crc2 = k2; + _CRC32CX(crc2, k[3] & m[3]); + crc3 = k2 >> 32; + _CRC32CX(crc3, k[4] & m[4]); + + crc4 = k5; + _CRC32CX(crc4, k[6] & m[6]); + crc5 = k5 >> 32; + + _CRC32CX(crc0, ((uint64_t)crc1 << 32) ^ crc2); + _CRC32CX(crc3, ((uint64_t)crc4 << 32) ^ crc5); + + crc0 ^= crc3; + + return crc0; +} + +static inline uint64_t +hash_crc_key64(void *key, void *mask, __rte_unused uint32_t key_size, + uint64_t seed) +{ + uint64_t *k = key, k0, k2, k5; + uint64_t *m = mask; + uint32_t crc0, crc1, crc2, crc3, crc4, crc5; + + k0 = k[0] & m[0]; + k2 = k[2] & m[2]; + k5 = k[5] & m[5]; + + crc0 = k0; + _CRC32CX(crc0, seed); + crc1 = k0 >> 32; + _CRC32CX(crc1, k[1] & m[1]); + + crc2 = k2; + _CRC32CX(crc2, k[3] & m[3]); + crc3 = k2 >> 32; + _CRC32CX(crc3, k[4] & m[4]); + + crc4 = k5; + _CRC32CX(crc4, k[6] & m[6]); + crc5 = k5 >> 32; + _CRC32CX(crc5, k[7] & m[7]); + + _CRC32CX(crc0, ((uint64_t)crc1 << 32) ^ crc2); + _CRC32CX(crc3, ((uint64_t)crc4 << 32) ^ crc5); + + crc0 ^= crc3; + + return crc0; +} + +#define hash_default_key8 hash_crc_key8 +#define hash_default_key16 hash_crc_key16 +#define hash_default_key24 hash_crc_key24 +#define hash_default_key32 hash_crc_key32 +#define hash_default_key40 hash_crc_key40 +#define hash_default_key48 hash_crc_key48 +#define hash_default_key56 hash_crc_key56 +#define hash_default_key64 hash_crc_key64 + +#endif |