a083f8cc77
Since the kernel modules are moved to kernel/ directory, there is no need anymore for the sub-directory eal/ in linux/, freebsd/ and windows/. Signed-off-by: Thomas Monjalon <thomas@monjalon.net> Acked-by: David Marchand <david.marchand@redhat.com>
273 lines
6.2 KiB
C
273 lines
6.2 KiB
C
/* SPDX-License-Identifier: BSD-3-Clause
|
|
* Copyright(c) 2019 Intel Corporation
|
|
*/
|
|
|
|
#include <fcntl.h>
|
|
#include <io.h>
|
|
#include <share.h>
|
|
#include <sys/stat.h>
|
|
|
|
#include <rte_debug.h>
|
|
#include <rte_eal.h>
|
|
#include <eal_memcfg.h>
|
|
#include <rte_errno.h>
|
|
#include <rte_lcore.h>
|
|
#include <eal_thread.h>
|
|
#include <eal_internal_cfg.h>
|
|
#include <eal_filesystem.h>
|
|
#include <eal_options.h>
|
|
#include <eal_private.h>
|
|
|
|
/* Allow the application to print its usage message too if set */
|
|
static rte_usage_hook_t rte_application_usage_hook;
|
|
|
|
/* define fd variable here, because file needs to be kept open for the
|
|
* duration of the program, as we hold a write lock on it in the primary proc
|
|
*/
|
|
static int mem_cfg_fd = -1;
|
|
|
|
/* early configuration structure, when memory config is not mmapped */
|
|
static struct rte_mem_config early_mem_config;
|
|
|
|
/* Address of global and public configuration */
|
|
static struct rte_config rte_config = {
|
|
.mem_config = &early_mem_config,
|
|
};
|
|
|
|
/* internal configuration (per-core) */
|
|
struct lcore_config lcore_config[RTE_MAX_LCORE];
|
|
|
|
/* internal configuration */
|
|
struct internal_config internal_config;
|
|
|
|
/* platform-specific runtime dir */
|
|
static char runtime_dir[PATH_MAX];
|
|
|
|
const char *
|
|
rte_eal_get_runtime_dir(void)
|
|
{
|
|
return runtime_dir;
|
|
}
|
|
|
|
/* Return a pointer to the configuration structure */
|
|
struct rte_config *
|
|
rte_eal_get_configuration(void)
|
|
{
|
|
return &rte_config;
|
|
}
|
|
|
|
/* Detect if we are a primary or a secondary process */
|
|
enum rte_proc_type_t
|
|
eal_proc_type_detect(void)
|
|
{
|
|
enum rte_proc_type_t ptype = RTE_PROC_PRIMARY;
|
|
const char *pathname = eal_runtime_config_path();
|
|
|
|
/* if we can open the file but not get a write-lock we are a secondary
|
|
* process. NOTE: if we get a file handle back, we keep that open
|
|
* and don't close it to prevent a race condition between multiple opens
|
|
*/
|
|
errno_t err = _sopen_s(&mem_cfg_fd, pathname,
|
|
_O_RDWR, _SH_DENYNO, _S_IREAD | _S_IWRITE);
|
|
if (err == 0) {
|
|
OVERLAPPED soverlapped = { 0 };
|
|
soverlapped.Offset = sizeof(*rte_config.mem_config);
|
|
soverlapped.OffsetHigh = 0;
|
|
|
|
HANDLE hwinfilehandle = (HANDLE)_get_osfhandle(mem_cfg_fd);
|
|
|
|
if (!LockFileEx(hwinfilehandle,
|
|
LOCKFILE_EXCLUSIVE_LOCK | LOCKFILE_FAIL_IMMEDIATELY, 0,
|
|
sizeof(*rte_config.mem_config), 0, &soverlapped))
|
|
ptype = RTE_PROC_SECONDARY;
|
|
}
|
|
|
|
RTE_LOG(INFO, EAL, "Auto-detected process type: %s\n",
|
|
ptype == RTE_PROC_PRIMARY ? "PRIMARY" : "SECONDARY");
|
|
|
|
return ptype;
|
|
}
|
|
|
|
/* display usage */
|
|
static void
|
|
eal_usage(const char *prgname)
|
|
{
|
|
printf("\nUsage: %s ", prgname);
|
|
eal_common_usage();
|
|
/* Allow the application to print its usage message too
|
|
* if hook is set
|
|
*/
|
|
if (rte_application_usage_hook) {
|
|
printf("===== Application Usage =====\n\n");
|
|
rte_application_usage_hook(prgname);
|
|
}
|
|
}
|
|
|
|
/* Parse the arguments for --log-level only */
|
|
static void
|
|
eal_log_level_parse(int argc, char **argv)
|
|
{
|
|
int opt;
|
|
char **argvopt;
|
|
int option_index;
|
|
|
|
argvopt = argv;
|
|
|
|
eal_reset_internal_config(&internal_config);
|
|
|
|
while ((opt = getopt_long(argc, argvopt, eal_short_options,
|
|
eal_long_options, &option_index)) != EOF) {
|
|
|
|
int ret;
|
|
|
|
/* getopt is not happy, stop right now */
|
|
if (opt == '?')
|
|
break;
|
|
|
|
ret = (opt == OPT_LOG_LEVEL_NUM) ?
|
|
eal_parse_common_option(opt, optarg,
|
|
&internal_config) : 0;
|
|
|
|
/* common parser is not happy */
|
|
if (ret < 0)
|
|
break;
|
|
}
|
|
|
|
optind = 0; /* reset getopt lib */
|
|
}
|
|
|
|
/* Parse the argument given in the command line of the application */
|
|
__attribute__((optnone)) static int
|
|
eal_parse_args(int argc, char **argv)
|
|
{
|
|
int opt, ret;
|
|
char **argvopt;
|
|
int option_index;
|
|
char *prgname = argv[0];
|
|
|
|
argvopt = argv;
|
|
|
|
while ((opt = getopt_long(argc, argvopt, eal_short_options,
|
|
eal_long_options, &option_index)) != EOF) {
|
|
|
|
int ret;
|
|
|
|
/* getopt is not happy, stop right now */
|
|
if (opt == '?') {
|
|
eal_usage(prgname);
|
|
return -1;
|
|
}
|
|
|
|
ret = eal_parse_common_option(opt, optarg, &internal_config);
|
|
/* common parser is not happy */
|
|
if (ret < 0) {
|
|
eal_usage(prgname);
|
|
return -1;
|
|
}
|
|
/* common parser handled this option */
|
|
if (ret == 0)
|
|
continue;
|
|
|
|
switch (opt) {
|
|
case 'h':
|
|
eal_usage(prgname);
|
|
exit(EXIT_SUCCESS);
|
|
default:
|
|
if (opt < OPT_LONG_MIN_NUM && isprint(opt)) {
|
|
RTE_LOG(ERR, EAL, "Option %c is not supported "
|
|
"on Windows\n", opt);
|
|
} else if (opt >= OPT_LONG_MIN_NUM &&
|
|
opt < OPT_LONG_MAX_NUM) {
|
|
RTE_LOG(ERR, EAL, "Option %s is not supported "
|
|
"on Windows\n",
|
|
eal_long_options[option_index].name);
|
|
} else {
|
|
RTE_LOG(ERR, EAL, "Option %d is not supported "
|
|
"on Windows\n", opt);
|
|
}
|
|
eal_usage(prgname);
|
|
return -1;
|
|
}
|
|
}
|
|
|
|
if (eal_adjust_config(&internal_config) != 0)
|
|
return -1;
|
|
|
|
/* sanity checks */
|
|
if (eal_check_common_options(&internal_config) != 0) {
|
|
eal_usage(prgname);
|
|
return -1;
|
|
}
|
|
|
|
if (optind >= 0)
|
|
argv[optind - 1] = prgname;
|
|
ret = optind - 1;
|
|
optind = 0; /* reset getopt lib */
|
|
return ret;
|
|
}
|
|
|
|
static int
|
|
sync_func(void *arg __rte_unused)
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
static void
|
|
rte_eal_init_alert(const char *msg)
|
|
{
|
|
fprintf(stderr, "EAL: FATAL: %s\n", msg);
|
|
RTE_LOG(ERR, EAL, "%s\n", msg);
|
|
}
|
|
|
|
/* Launch threads, called at application init(). */
|
|
int
|
|
rte_eal_init(int argc, char **argv)
|
|
{
|
|
int i, fctret;
|
|
|
|
eal_log_level_parse(argc, argv);
|
|
|
|
/* create a map of all processors in the system */
|
|
eal_create_cpu_map();
|
|
|
|
if (rte_eal_cpu_init() < 0) {
|
|
rte_eal_init_alert("Cannot detect lcores.");
|
|
rte_errno = ENOTSUP;
|
|
return -1;
|
|
}
|
|
|
|
fctret = eal_parse_args(argc, argv);
|
|
if (fctret < 0)
|
|
exit(1);
|
|
|
|
eal_thread_init_master(rte_config.master_lcore);
|
|
|
|
RTE_LCORE_FOREACH_SLAVE(i) {
|
|
|
|
/*
|
|
* create communication pipes between master thread
|
|
* and children
|
|
*/
|
|
if (_pipe(lcore_config[i].pipe_master2slave,
|
|
sizeof(char), _O_BINARY) < 0)
|
|
rte_panic("Cannot create pipe\n");
|
|
if (_pipe(lcore_config[i].pipe_slave2master,
|
|
sizeof(char), _O_BINARY) < 0)
|
|
rte_panic("Cannot create pipe\n");
|
|
|
|
lcore_config[i].state = WAIT;
|
|
|
|
/* create a thread for each lcore */
|
|
if (eal_thread_create(&lcore_config[i].thread_id) != 0)
|
|
rte_panic("Cannot create thread\n");
|
|
}
|
|
|
|
/*
|
|
* Launch a dummy function on all slave lcores, so that master lcore
|
|
* knows they are all ready when this function returns.
|
|
*/
|
|
rte_eal_mp_remote_launch(sync_func, NULL, SKIP_MASTER);
|
|
rte_eal_mp_wait_lcore();
|
|
return fctret;
|
|
}
|