LXR dpdk/lib/librte_eal/include/rte_eal

   1/* SPDX-License-Identifier: BSD-3-Clause
   2 * Copyright(c) 2010-2014 Intel Corporation
   3 */
   4
   5#ifndef _RTE_EAL_MEMCONFIG_H_
   6#define _RTE_EAL_MEMCONFIG_H_
   7
   8#include <stdbool.h>
   9
  10#include <rte_compat.h>
  11
  12/**
  13 * @file
  14 *
  15 * This API allows access to EAL shared memory configuration through an API.
  16 */
  17
  18#ifdef __cplusplus
  19extern "C" {
  20#endif
  21
  22/**
  23 * Lock the internal EAL shared memory configuration for shared access.
  24 */
  25void
  26rte_mcfg_mem_read_lock(void);
  27
  28/**
  29 * Unlock the internal EAL shared memory configuration for shared access.
  30 */
  31void
  32rte_mcfg_mem_read_unlock(void);
  33
  34/**
  35 * Lock the internal EAL shared memory configuration for exclusive access.
  36 */
  37void
  38rte_mcfg_mem_write_lock(void);
  39
  40/**
  41 * Unlock the internal EAL shared memory configuration for exclusive access.
  42 */
  43void
  44rte_mcfg_mem_write_unlock(void);
  45
  46/**
  47 * Lock the internal EAL TAILQ list for shared access.
  48 */
  49void
  50rte_mcfg_tailq_read_lock(void);
  51
  52/**
  53 * Unlock the internal EAL TAILQ list for shared access.
  54 */
  55void
  56rte_mcfg_tailq_read_unlock(void);
  57
  58/**
  59 * Lock the internal EAL TAILQ list for exclusive access.
  60 */
  61void
  62rte_mcfg_tailq_write_lock(void);
  63
  64/**
  65 * Unlock the internal EAL TAILQ list for exclusive access.
  66 */
  67void
  68rte_mcfg_tailq_write_unlock(void);
  69
  70/**
  71 * Lock the internal EAL Mempool list for shared access.
  72 */
  73void
  74rte_mcfg_mempool_read_lock(void);
  75
  76/**
  77 * Unlock the internal EAL Mempool list for shared access.
  78 */
  79void
  80rte_mcfg_mempool_read_unlock(void);
  81
  82/**
  83 * Lock the internal EAL Mempool list for exclusive access.
  84 */
  85void
  86rte_mcfg_mempool_write_lock(void);
  87
  88/**
  89 * Unlock the internal EAL Mempool list for exclusive access.
  90 */
  91void
  92rte_mcfg_mempool_write_unlock(void);
  93
  94/**
  95 * @warning
  96 * @b EXPERIMENTAL: this API may change without prior notice
  97 *
  98 * Lock the internal EAL Timer Library lock for exclusive access.
  99 */
 100__rte_experimental
 101void
 102rte_mcfg_timer_lock(void);
 103
 104/**
 105 * @warning
 106 * @b EXPERIMENTAL: this API may change without prior notice
 107 *
 108 * Unlock the internal EAL Timer Library lock for exclusive access.
 109 */
 110__rte_experimental
 111void
 112rte_mcfg_timer_unlock(void);
 113
 114/**
 115 * @warning
 116 * @b EXPERIMENTAL: this API may change without prior notice
 117 *
 118 * If true, pages are put in single files (per memseg list),
 119 * as opposed to creating a file per page.
 120 */
 121__rte_experimental
 122bool
 123rte_mcfg_get_single_file_segments(void);
 124
 125#ifdef __cplusplus
 126}
 127#endif
 128
 129#endif /*__RTE_EAL_MEMCONFIG_H_*/
 130