lib/eal/common/eal_common_config.c

   1 /* SPDX-License-Identifier: BSD-3-Clause
   2  * Copyright(c) 2020 Mellanox Technologies, Ltd
   3  */
   4
   5 #include <rte_string_fns.h>
   6
   7 #include "eal_private.h"
   8 #include "eal_memcfg.h"
   9
  10 /* early configuration structure, when memory config is not mmapped */
  11 static struct rte_mem_config early_mem_config;
  12
  13 /* Address of global and public configuration */
  14 static struct rte_config rte_config = {
  15         .mem_config = &early_mem_config,
  16 };
  17
  18 /* platform-specific runtime dir */
  19 static char runtime_dir[PATH_MAX];
  20
  21 /* internal configuration */
  22 static struct internal_config internal_config;
  23
  24 const char *
  25 rte_eal_get_runtime_dir(void)
  26 {
  27         return runtime_dir;
  28 }
  29
  30 int
  31 eal_set_runtime_dir(const char *run_dir)
  32 {
  33         if (strlcpy(runtime_dir, run_dir, PATH_MAX) >= PATH_MAX) {
  34                 RTE_LOG(ERR, EAL, "Runtime directory string too long\n");
  35                 return -1;
  36         }
  37
  38         return 0;
  39 }
  40
  41 /* Return a pointer to the configuration structure */
  42 struct rte_config *
  43 rte_eal_get_configuration(void)
  44 {
  45         return &rte_config;
  46 }
  47
  48 /* Return a pointer to the internal configuration structure */
  49 struct internal_config *
  50 eal_get_internal_configuration(void)
  51 {
  52         return &internal_config;
  53 }
  54
  55 enum rte_iova_mode
  56 rte_eal_iova_mode(void)
  57 {
  58         return rte_eal_get_configuration()->iova_mode;
  59 }
  60
  61 /* Get the EAL base address */
  62 uint64_t
  63 rte_eal_get_baseaddr(void)
  64 {
  65         return (internal_config.base_virtaddr != 0) ?
  66                        (uint64_t) internal_config.base_virtaddr :
  67                        eal_get_baseaddr();
  68 }
  69
  70 enum rte_proc_type_t
  71 rte_eal_process_type(void)
  72 {
  73         return rte_config.process_type;
  74 }
  75
  76 /* Return user provided mbuf pool ops name */
  77 const char *
  78 rte_eal_mbuf_user_pool_ops(void)
  79 {
  80         return internal_config.user_mbuf_pool_ops_name;
  81 }
  82
  83 /* return non-zero if hugepages are enabled. */
  84 int
  85 rte_eal_has_hugepages(void)
  86 {
  87         return !internal_config.no_hugetlbfs;
  88 }
  89
  90 int
  91 rte_eal_has_pci(void)
  92 {
  93         return !internal_config.no_pci;
  94 }