99a2dd955f
There is no reason for the DPDK libraries to all have 'librte_' prefix on the directory names. This prefix makes the directory names longer and also makes it awkward to add features referring to individual libraries in the build - should the lib names be specified with or without the prefix. Therefore, we can just remove the library prefix and use the library's unique name as the directory name, i.e. 'eal' rather than 'librte_eal' Signed-off-by: Bruce Richardson <bruce.richardson@intel.com>
86 lines
2.3 KiB
C
86 lines
2.3 KiB
C
/* SPDX-License-Identifier: BSD-3-Clause
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* Copyright(c) 2015 Cavium, Inc
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*/
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/* Functions to compare multiple of 16 byte keys (up to 128 bytes) */
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static int
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rte_hash_k16_cmp_eq(const void *key1, const void *key2,
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size_t key_len __rte_unused)
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{
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uint64_t x0, x1, y0, y1;
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asm volatile(
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"ldp %x[x1], %x[x0], [%x[p1]]"
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: [x1]"=r"(x1), [x0]"=r"(x0)
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: [p1]"r"(key1)
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);
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asm volatile(
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"ldp %x[y1], %x[y0], [%x[p2]]"
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: [y1]"=r"(y1), [y0]"=r"(y0)
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: [p2]"r"(key2)
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);
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x0 ^= y0;
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x1 ^= y1;
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return !(x0 == 0 && x1 == 0);
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}
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static int
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rte_hash_k32_cmp_eq(const void *key1, const void *key2, size_t key_len)
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{
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return rte_hash_k16_cmp_eq(key1, key2, key_len) ||
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rte_hash_k16_cmp_eq((const char *) key1 + 16,
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(const char *) key2 + 16, key_len);
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}
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static int
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rte_hash_k48_cmp_eq(const void *key1, const void *key2, size_t key_len)
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{
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return rte_hash_k16_cmp_eq(key1, key2, key_len) ||
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rte_hash_k16_cmp_eq((const char *) key1 + 16,
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(const char *) key2 + 16, key_len) ||
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rte_hash_k16_cmp_eq((const char *) key1 + 32,
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(const char *) key2 + 32, key_len);
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}
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static int
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rte_hash_k64_cmp_eq(const void *key1, const void *key2, size_t key_len)
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{
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return rte_hash_k32_cmp_eq(key1, key2, key_len) ||
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rte_hash_k32_cmp_eq((const char *) key1 + 32,
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(const char *) key2 + 32, key_len);
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}
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static int
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rte_hash_k80_cmp_eq(const void *key1, const void *key2, size_t key_len)
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{
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return rte_hash_k64_cmp_eq(key1, key2, key_len) ||
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rte_hash_k16_cmp_eq((const char *) key1 + 64,
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(const char *) key2 + 64, key_len);
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}
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static int
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rte_hash_k96_cmp_eq(const void *key1, const void *key2, size_t key_len)
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{
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return rte_hash_k64_cmp_eq(key1, key2, key_len) ||
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rte_hash_k32_cmp_eq((const char *) key1 + 64,
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(const char *) key2 + 64, key_len);
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}
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static int
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rte_hash_k112_cmp_eq(const void *key1, const void *key2, size_t key_len)
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{
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return rte_hash_k64_cmp_eq(key1, key2, key_len) ||
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rte_hash_k32_cmp_eq((const char *) key1 + 64,
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(const char *) key2 + 64, key_len) ||
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rte_hash_k16_cmp_eq((const char *) key1 + 96,
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(const char *) key2 + 96, key_len);
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}
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static int
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rte_hash_k128_cmp_eq(const void *key1, const void *key2, size_t key_len)
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{
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return rte_hash_k64_cmp_eq(key1, key2, key_len) ||
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rte_hash_k64_cmp_eq((const char *) key1 + 64,
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(const char *) key2 + 64, key_len);
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}
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