lib/librte_eal/common/eal_common_config.c

   1 /* SPDX-License-Identifier: BSD-3-Clause
   2  * Copyright(c) 2020 Mellanox Technologies, Ltd
   3  */
   4 #include <string.h>
   5
   6 #include <rte_os.h>
   7 #include <rte_string_fns.h>
   8
   9 #include "eal_private.h"
  10 #include "eal_memcfg.h"
  11
  12 /* early configuration structure, when memory config is not mmapped */
  13 static struct rte_mem_config early_mem_config;
  14
  15 /* Address of global and public configuration */
  16 static struct rte_config rte_config = {
  17         .mem_config = &early_mem_config,
  18 };
  19
  20 /* platform-specific runtime dir */
  21 static char runtime_dir[PATH_MAX];
  22
  23 /* internal configuration */
  24 static struct internal_config internal_config;
  25
  26 const char *
  27 rte_eal_get_runtime_dir(void)
  28 {
  29         return runtime_dir;
  30 }
  31
  32 int
  33 eal_set_runtime_dir(char *run_dir, size_t size)
  34 {
  35         size_t str_size;
  36
  37         str_size = strlcpy(runtime_dir, run_dir, size);
  38         if (str_size >= size) {
  39                 RTE_LOG(ERR, EAL, "Runtime directory string too long\n");
  40                 return -1;
  41         }
  42
  43         return 0;
  44 }
  45
  46 /* Return a pointer to the configuration structure */
  47 struct rte_config *
  48 rte_eal_get_configuration(void)
  49 {
  50         return &rte_config;
  51 }
  52
  53 /* Return a pointer to the internal configuration structure */
  54 struct internal_config *
  55 eal_get_internal_configuration(void)
  56 {
  57         return &internal_config;
  58 }
  59
  60 enum rte_iova_mode
  61 rte_eal_iova_mode(void)
  62 {
  63         return rte_eal_get_configuration()->iova_mode;
  64 }
  65
  66 enum rte_proc_type_t
  67 rte_eal_process_type(void)
  68 {
  69         return rte_config.process_type;
  70 }
  71
  72 /* Return user provided mbuf pool ops name */
  73 const char *
  74 rte_eal_mbuf_user_pool_ops(void)
  75 {
  76         return internal_config.user_mbuf_pool_ops_name;
  77 }
  78
  79 /* return non-zero if hugepages are enabled. */
  80 int
  81 rte_eal_has_hugepages(void)
  82 {
  83         return !internal_config.no_hugetlbfs;
  84 }
  85
  86 int
  87 rte_eal_has_pci(void)
  88 {
  89         return !internal_config.no_pci;
  90 }