New upstream version 18.11-rc1upstream/18.11-rc1

Change-Id: Iaa71986dd6332e878d8f4bf493101b2bbc6313bb
Signed-off-by: Luca Boccassi <luca.boccassi@gmail.com>

1 files changed, 245 insertions, 0 deletions

diff --git a/lib/librte_table/rte_table_hash_func.h b/lib/librte_table/rte_table_hash_func.h
new file mode 100644
index 00000000..02296eab
--- /dev/null
+++ b/lib/librte_table/rte_table_hash_func.h
@@ -0,0 +1,245 @@
+/* SPDX-License-Identifier: BSD-3-Clause
+ * Copyright(c) 2010-2018 Intel Corporation
+ */
+
+#ifndef __INCLUDE_RTE_TABLE_HASH_FUNC_H__
+#define __INCLUDE_RTE_TABLE_HASH_FUNC_H__
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#include <stdint.h>
+
+#include <rte_compat.h>
+#include <rte_common.h>
+
+static inline uint64_t __rte_experimental
+rte_crc32_u64_generic(uint64_t crc, uint64_t value)
+{
+	int i;
+
+	crc = (crc & 0xFFFFFFFFLLU) ^ value;
+	for (i = 63; i >= 0; i--) {
+		uint64_t mask;
+
+		mask = -(crc & 1LLU);
+		crc = (crc >> 1LLU) ^ (0x82F63B78LLU & mask);
+	}
+
+	return crc;
+}
+
+#if defined(RTE_ARCH_X86_64)
+
+#include <x86intrin.h>
+
+static inline uint64_t
+rte_crc32_u64(uint64_t crc, uint64_t v)
+{
+	return _mm_crc32_u64(crc, v);
+}
+
+#elif defined(RTE_ARCH_ARM64)
+#include "rte_table_hash_func_arm64.h"
+#else
+
+static inline uint64_t
+rte_crc32_u64(uint64_t crc, uint64_t v)
+{
+	return rte_crc32_u64_generic(crc, v);
+}
+
+#endif
+
+static inline uint64_t __rte_experimental
+rte_table_hash_crc_key8(void *key, void *mask, __rte_unused uint32_t key_size,
+	uint64_t seed)
+{
+	uint64_t *k = key;
+	uint64_t *m = mask;
+	uint64_t crc0;
+
+	crc0 = rte_crc32_u64(seed, k[0] & m[0]);
+
+	return crc0;
+}
+
+static inline uint64_t __rte_experimental
+rte_table_hash_crc_key16(void *key, void *mask, __rte_unused uint32_t key_size,
+	uint64_t seed)
+{
+	uint64_t *k = key;
+	uint64_t *m = mask;
+	uint64_t k0, crc0, crc1;
+
+	k0 = k[0] & m[0];
+
+	crc0 = rte_crc32_u64(k0, seed);
+	crc1 = rte_crc32_u64(k0 >> 32, k[1] & m[1]);
+
+	crc0 ^= crc1;
+
+	return crc0;
+}
+
+static inline uint64_t __rte_experimental
+rte_table_hash_crc_key24(void *key, void *mask, __rte_unused uint32_t key_size,
+	uint64_t seed)
+{
+	uint64_t *k = key;
+	uint64_t *m = mask;
+	uint64_t k0, k2, crc0, crc1;
+
+	k0 = k[0] & m[0];
+	k2 = k[2] & m[2];
+
+	crc0 = rte_crc32_u64(k0, seed);
+	crc1 = rte_crc32_u64(k0 >> 32, k[1] & m[1]);
+
+	crc0 = rte_crc32_u64(crc0, k2);
+
+	crc0 ^= crc1;
+
+	return crc0;
+}
+
+static inline uint64_t __rte_experimental
+rte_table_hash_crc_key32(void *key, void *mask, __rte_unused uint32_t key_size,
+	uint64_t seed)
+{
+	uint64_t *k = key;
+	uint64_t *m = mask;
+	uint64_t k0, k2, crc0, crc1, crc2, crc3;
+
+	k0 = k[0] & m[0];
+	k2 = k[2] & m[2];
+
+	crc0 = rte_crc32_u64(k0, seed);
+	crc1 = rte_crc32_u64(k0 >> 32, k[1] & m[1]);
+
+	crc2 = rte_crc32_u64(k2, k[3] & m[3]);
+	crc3 = k2 >> 32;
+
+	crc0 = rte_crc32_u64(crc0, crc1);
+	crc1 = rte_crc32_u64(crc2, crc3);
+
+	crc0 ^= crc1;
+
+	return crc0;
+}
+
+static inline uint64_t __rte_experimental
+rte_table_hash_crc_key40(void *key, void *mask, __rte_unused uint32_t key_size,
+	uint64_t seed)
+{
+	uint64_t *k = key;
+	uint64_t *m = mask;
+	uint64_t k0, k2, crc0, crc1, crc2, crc3;
+
+	k0 = k[0] & m[0];
+	k2 = k[2] & m[2];
+
+	crc0 = rte_crc32_u64(k0, seed);
+	crc1 = rte_crc32_u64(k0 >> 32, k[1] & m[1]);
+
+	crc2 = rte_crc32_u64(k2, k[3] & m[3]);
+	crc3 = rte_crc32_u64(k2 >> 32, k[4] & m[4]);
+
+	crc0 = rte_crc32_u64(crc0, crc1);
+	crc1 = rte_crc32_u64(crc2, crc3);
+
+	crc0 ^= crc1;
+
+	return crc0;
+}
+
+static inline uint64_t __rte_experimental
+rte_table_hash_crc_key48(void *key, void *mask, __rte_unused uint32_t key_size,
+	uint64_t seed)
+{
+	uint64_t *k = key;
+	uint64_t *m = mask;
+	uint64_t k0, k2, k5, crc0, crc1, crc2, crc3;
+
+	k0 = k[0] & m[0];
+	k2 = k[2] & m[2];
+	k5 = k[5] & m[5];
+
+	crc0 = rte_crc32_u64(k0, seed);
+	crc1 = rte_crc32_u64(k0 >> 32, k[1] & m[1]);
+
+	crc2 = rte_crc32_u64(k2, k[3] & m[3]);
+	crc3 = rte_crc32_u64(k2 >> 32, k[4] & m[4]);
+
+	crc0 = rte_crc32_u64(crc0, (crc1 << 32) ^ crc2);
+	crc1 = rte_crc32_u64(crc3, k5);
+
+	crc0 ^= crc1;
+
+	return crc0;
+}
+
+static inline uint64_t __rte_experimental
+rte_table_hash_crc_key56(void *key, void *mask, __rte_unused uint32_t key_size,
+	uint64_t seed)
+{
+	uint64_t *k = key;
+	uint64_t *m = mask;
+	uint64_t k0, k2, k5, crc0, crc1, crc2, crc3, crc4, crc5;
+
+	k0 = k[0] & m[0];
+	k2 = k[2] & m[2];
+	k5 = k[5] & m[5];
+
+	crc0 = rte_crc32_u64(k0, seed);
+	crc1 = rte_crc32_u64(k0 >> 32, k[1] & m[1]);
+
+	crc2 = rte_crc32_u64(k2, k[3] & m[3]);
+	crc3 = rte_crc32_u64(k2 >> 32, k[4] & m[4]);
+
+	crc4 = rte_crc32_u64(k5, k[6] & m[6]);
+	crc5 = k5 >> 32;
+
+	crc0 = rte_crc32_u64(crc0, (crc1 << 32) ^ crc2);
+	crc1 = rte_crc32_u64(crc3, (crc4 << 32) ^ crc5);
+
+	crc0 ^= crc1;
+
+	return crc0;
+}
+
+static inline uint64_t __rte_experimental
+rte_table_hash_crc_key64(void *key, void *mask, __rte_unused uint32_t key_size,
+	uint64_t seed)
+{
+	uint64_t *k = key;
+	uint64_t *m = mask;
+	uint64_t k0, k2, k5, crc0, crc1, crc2, crc3, crc4, crc5;
+
+	k0 = k[0] & m[0];
+	k2 = k[2] & m[2];
+	k5 = k[5] & m[5];
+
+	crc0 = rte_crc32_u64(k0, seed);
+	crc1 = rte_crc32_u64(k0 >> 32, k[1] & m[1]);
+
+	crc2 = rte_crc32_u64(k2, k[3] & m[3]);
+	crc3 = rte_crc32_u64(k2 >> 32, k[4] & m[4]);
+
+	crc4 = rte_crc32_u64(k5, k[6] & m[6]);
+	crc5 = rte_crc32_u64(k5 >> 32, k[7] & m[7]);
+
+	crc0 = rte_crc32_u64(crc0, (crc1 << 32) ^ crc2);
+	crc1 = rte_crc32_u64(crc3, (crc4 << 32) ^ crc5);
+
+	crc0 ^= crc1;
+
+	return crc0;
+}
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif