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>
94 lines
1.9 KiB
C
94 lines
1.9 KiB
C
/* SPDX-License-Identifier: BSD-3-Clause
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* Copyright(c) 2010-2014 Intel Corporation
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*/
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#ifndef __INCLUDE_RTE_LRU_H__
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#define __INCLUDE_RTE_LRU_H__
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#ifdef __cplusplus
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extern "C" {
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#endif
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#include <rte_config.h>
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#ifdef RTE_ARCH_X86_64
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#include "rte_lru_x86.h"
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#elif defined(RTE_ARCH_ARM64)
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#include "rte_lru_arm64.h"
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#else
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#undef RTE_TABLE_HASH_LRU_STRATEGY
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#define RTE_TABLE_HASH_LRU_STRATEGY 1
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#endif
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#if RTE_TABLE_HASH_LRU_STRATEGY == 0
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#define lru_init(bucket) \
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do \
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bucket = bucket; \
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while (0)
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#define lru_pos(bucket) (bucket->lru_list & 0xFFFFLLU)
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#define lru_update(bucket, mru_val) \
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do { \
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bucket = bucket; \
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mru_val = mru_val; \
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} while (0)
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#elif RTE_TABLE_HASH_LRU_STRATEGY == 1
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#define lru_init(bucket) \
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do \
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bucket->lru_list = 0x0000000100020003LLU; \
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while (0)
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#define lru_pos(bucket) (bucket->lru_list & 0xFFFFLLU)
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#define lru_update(bucket, mru_val) \
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do { \
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uint64_t x, pos, x0, x1, x2, mask; \
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\
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x = bucket->lru_list; \
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\
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pos = 4; \
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if ((x >> 48) == ((uint64_t) mru_val)) \
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pos = 3; \
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\
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if (((x >> 32) & 0xFFFFLLU) == ((uint64_t) mru_val)) \
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pos = 2; \
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\
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if (((x >> 16) & 0xFFFFLLU) == ((uint64_t) mru_val)) \
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pos = 1; \
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\
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if ((x & 0xFFFFLLU) == ((uint64_t) mru_val)) \
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pos = 0; \
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\
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\
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pos <<= 4; \
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mask = (~0LLU) << pos; \
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x0 = x & (~mask); \
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x1 = (x >> 16) & mask; \
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x2 = (x << (48 - pos)) & (0xFFFFLLU << 48); \
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x = x0 | x1 | x2; \
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\
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if (pos != 64) \
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bucket->lru_list = x; \
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} while (0)
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#elif (RTE_TABLE_HASH_LRU_STRATEGY == 2) || (RTE_TABLE_HASH_LRU_STRATEGY == 3)
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/**
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* These strategies are implemented in architecture specific header files.
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*/
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#else
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#error "Incorrect value for RTE_TABLE_HASH_LRU_STRATEGY"
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#endif
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#ifdef __cplusplus
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}
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#endif
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#endif
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