acec05060d
Change license to BSD-3-Clause Signed-off-by: Rafal Stefanowski <rafal.stefanowski@intel.com>
92 lines
2.2 KiB
C
92 lines
2.2 KiB
C
/*
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* Copyright(c) 2012-2021 Intel Corporation
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* SPDX-License-Identifier: BSD-3-Clause
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*/
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#ifndef UTILS_MPOOL_H_
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#define UTILS_MPOOL_H_
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#include <linux/types.h>
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#define MPOOL_ALLOCATOR_NAME_MAX 128
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enum {
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env_mpool_1,
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env_mpool_2,
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env_mpool_4,
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env_mpool_8,
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env_mpool_16,
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env_mpool_32,
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env_mpool_64,
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env_mpool_128,
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env_mpool_max
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};
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struct env_mpool;
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/**
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* @brief Create CAS memory pool
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*
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* @param hdr_size size of constant allocation part
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* @param elem_size size increment for each element
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* @param flags Allocation flags
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* @param mpool_max Maximal allocator size (power of two)
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* @param fallback Should allocations fall back to vmalloc if allocator fails
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* @param limits Array of rpool preallocation limits per each mpool allocation
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* order or NULL if defaults are to be used. Array should have
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* mpool_max elements
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* @param name_prefix Format name prefix
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* @param zero Unused parameter
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*
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* @return CAS memory pool
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*/
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struct env_mpool *env_mpool_create(uint32_t hdr_size, uint32_t elem_size,
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int flags, int mpool_max, bool fallback,
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const uint32_t limits[env_mpool_max],
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const char *name_prefix, bool zero);
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/**
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* @brief Destroy existing memory pool
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*
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* @param mpool memory pool
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*/
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void env_mpool_destroy(struct env_mpool *mpool);
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/**
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* @brief Allocate new items of memory pool
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*
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* @note Allocation based on ATOMIC memory pool and this function can be called
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* when IRQ disable
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*
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* @param mpool CAS memory pool reference
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* @param count Count of elements to be allocated
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*
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* @return Pointer to the new items
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*/
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void *env_mpool_new(struct env_mpool *mpool, uint32_t count);
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/**
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* @brief Allocate new items of memory pool with specified allocation flag
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*
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* @param mpool CAS memory pool reference
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* @param count Count of elements to be allocated
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* @param flags Kernel allocation falgs
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*
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* @return Pointer to the new items
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*/
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void *env_mpool_new_f(struct env_mpool *mpool, uint32_t count, int flags);
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/**
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* @brief Free existing items of memory pool
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*
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* @param mpool CAS memory pool reference
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* @param items Items to be freed
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* @param count - Count of elements to be free
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*
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* @return Allocation was freed
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*/
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bool env_mpool_del(struct env_mpool *mpool, void *items, uint32_t count);
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#endif /* UTILS_MPOOL_H_ */
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