adf1d86736
As per deprecation notice [1], move DPDK runtime config to default DPDK runtime data location. Also, remove the deprecation notice and update release notes to indicate the changes. [1] http://dpdk.org/patch/40418 Signed-off-by: Anatoly Burakov <anatoly.burakov@intel.com>
116 lines
3.0 KiB
C
116 lines
3.0 KiB
C
/* SPDX-License-Identifier: BSD-3-Clause
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* Copyright(c) 2010-2018 Intel Corporation
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*/
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/**
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* @file
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* Stores functions and path defines for files and directories
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* on the filesystem for Linux, that are used by the Linux EAL.
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*/
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#ifndef EAL_FILESYSTEM_H
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#define EAL_FILESYSTEM_H
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/** Path of rte config file. */
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#include <stdint.h>
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#include <limits.h>
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#include <unistd.h>
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#include <stdlib.h>
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#include <rte_string_fns.h>
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#include "eal_internal_cfg.h"
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/* sets up platform-specific runtime data dir */
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int
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eal_create_runtime_dir(void);
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/* returns runtime dir */
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const char *
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eal_get_runtime_dir(void);
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#define RUNTIME_CONFIG_FNAME "config"
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static inline const char *
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eal_runtime_config_path(void)
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{
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static char buffer[PATH_MAX]; /* static so auto-zeroed */
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snprintf(buffer, sizeof(buffer) - 1, "%s/%s", eal_get_runtime_dir(),
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RUNTIME_CONFIG_FNAME);
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return buffer;
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}
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/** Path of primary/secondary communication unix socket file. */
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#define MP_SOCKET_FNAME "mp_socket"
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static inline const char *
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eal_mp_socket_path(void)
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{
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static char buffer[PATH_MAX]; /* static so auto-zeroed */
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snprintf(buffer, sizeof(buffer) - 1, "%s/%s", eal_get_runtime_dir(),
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MP_SOCKET_FNAME);
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return buffer;
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}
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#define FBARRAY_NAME_FMT "%s/fbarray_%s"
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static inline const char *
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eal_get_fbarray_path(char *buffer, size_t buflen, const char *name) {
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snprintf(buffer, buflen, FBARRAY_NAME_FMT, eal_get_runtime_dir(), name);
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return buffer;
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}
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/** Path of hugepage info file. */
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#define HUGEPAGE_INFO_FNAME "hugepage_info"
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static inline const char *
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eal_hugepage_info_path(void)
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{
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static char buffer[PATH_MAX]; /* static so auto-zeroed */
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snprintf(buffer, sizeof(buffer) - 1, "%s/%s", eal_get_runtime_dir(),
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HUGEPAGE_INFO_FNAME);
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return buffer;
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}
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/** Path of hugepage data file. */
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#define HUGEPAGE_DATA_FNAME "hugepage_data"
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static inline const char *
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eal_hugepage_data_path(void)
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{
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static char buffer[PATH_MAX]; /* static so auto-zeroed */
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snprintf(buffer, sizeof(buffer) - 1, "%s/%s", eal_get_runtime_dir(),
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HUGEPAGE_DATA_FNAME);
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return buffer;
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}
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/** String format for hugepage map files. */
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#define HUGEFILE_FMT "%s/%smap_%d"
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static inline const char *
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eal_get_hugefile_path(char *buffer, size_t buflen, const char *hugedir, int f_id)
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{
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snprintf(buffer, buflen, HUGEFILE_FMT, hugedir,
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internal_config.hugefile_prefix, f_id);
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buffer[buflen - 1] = '\0';
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return buffer;
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}
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/** String format for hugepage map lock files. */
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#define HUGEFILE_LOCK_FMT "%s/map_%d.lock"
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static inline const char *
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eal_get_hugefile_lock_path(char *buffer, size_t buflen, int f_id)
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{
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snprintf(buffer, buflen, HUGEFILE_LOCK_FMT, eal_get_runtime_dir(),
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f_id);
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buffer[buflen - 1] = '\0';
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return buffer;
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}
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/** define the default filename prefix for the %s values above */
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#define HUGEFILE_PREFIX_DEFAULT "rte"
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/** Function to read a single numeric value from a file on the filesystem.
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* Used to read information from files on /sys */
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int eal_parse_sysfs_value(const char *filename, unsigned long *val);
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#endif /* EAL_FILESYSTEM_H */
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