mirror of https://github.com/F-Stack/f-stack.git
41 lines
1.1 KiB
C
41 lines
1.1 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 EAL_HUGEPAGES_H
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#define EAL_HUGEPAGES_H
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#include <stddef.h>
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#include <stdint.h>
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#include <limits.h>
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#define MAX_HUGEPAGE_PATH PATH_MAX
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/**
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* Structure used to store informations about hugepages that we mapped
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* through the files in hugetlbfs.
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*/
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struct hugepage_file {
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void *orig_va; /**< virtual addr of first mmap() */
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void *final_va; /**< virtual addr of 2nd mmap() */
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uint64_t physaddr; /**< physical addr */
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size_t size; /**< the page size */
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int socket_id; /**< NUMA socket ID */
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int file_id; /**< the '%d' in HUGEFILE_FMT */
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char filepath[MAX_HUGEPAGE_PATH]; /**< path to backing file on filesystem */
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};
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/**
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* Read the information on what hugepages are available for the EAL to use,
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* clearing out any unused ones.
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*/
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int eal_hugepage_info_init(void);
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/**
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* Read whatever information primary process has shared about hugepages into
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* secondary process.
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*/
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int eal_hugepage_info_read(void);
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#endif /* EAL_HUGEPAGES_H */
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