lib/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_string_fns.h>
   7
   8 #include "eal_private.h"
   9 #include "eal_memcfg.h"
  10
  11 /* early configuration structure, when memory config is not mmapped */
  12 static struct rte_mem_config early_mem_config;
  13
  14 /* Address of global and public configuration */
  15 static struct rte_config rte_config = {
  16         .mem_config = &early_mem_config,
  17 };
  18
  19 /* platform-specific runtime dir */
  20 static char runtime_dir[PATH_MAX];
  21
  22 /* internal configuration */
  23 static struct internal_config internal_config;
  24
  25 const char *
  26 rte_eal_get_runtime_dir(void)
  27 {
  28         return runtime_dir;
  29 }
  30
  31 int
  32 eal_set_runtime_dir(char *run_dir, size_t size)
  33 {
  34         size_t str_size;
  35
  36         str_size = strlcpy(runtime_dir, run_dir, size);
  37         if (str_size >= size) {
  38                 RTE_LOG(ERR, EAL, "Runtime directory string too long\n");
  39                 return -1;
  40         }
  41
  42         return 0;
  43 }
  44
  45 /* Return a pointer to the configuration structure */
  46 struct rte_config *
  47 rte_eal_get_configuration(void)
  48 {
  49         return &rte_config;
  50 }
  51
  52 /* Return a pointer to the internal configuration structure */
  53 struct internal_config *
  54 eal_get_internal_configuration(void)
  55 {
  56         return &internal_config;
  57 }
  58
  59 enum rte_iova_mode
  60 rte_eal_iova_mode(void)
  61 {
  62         return rte_eal_get_configuration()->iova_mode;
  63 }
  64
  65 /* Get the EAL base address */
  66 uint64_t
  67 rte_eal_get_baseaddr(void)
  68 {
  69         return (internal_config.base_virtaddr != 0) ?
  70                        (uint64_t) internal_config.base_virtaddr :
  71                        eal_get_baseaddr();
  72 }
  73
  74 enum rte_proc_type_t
  75 rte_eal_process_type(void)
  76 {
  77         return rte_config.process_type;
  78 }
  79
  80 /* Return user provided mbuf pool ops name */
  81 const char *
  82 rte_eal_mbuf_user_pool_ops(void)
  83 {
  84         return internal_config.user_mbuf_pool_ops_name;
  85 }
  86
  87 /* return non-zero if hugepages are enabled. */
  88 int
  89 rte_eal_has_hugepages(void)
  90 {
  91         return !internal_config.no_hugetlbfs;
  92 }
  93
  94 int
  95 rte_eal_has_pci(void)
  96 {
  97         return !internal_config.no_pci;
  98 }