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Diffstat (limited to 'src/spdk/dpdk/lib/librte_eal/freebsd/eal.c')
-rw-r--r--src/spdk/dpdk/lib/librte_eal/freebsd/eal.c1105
1 files changed, 1105 insertions, 0 deletions
diff --git a/src/spdk/dpdk/lib/librte_eal/freebsd/eal.c b/src/spdk/dpdk/lib/librte_eal/freebsd/eal.c
new file mode 100644
index 000000000..c41f265fa
--- /dev/null
+++ b/src/spdk/dpdk/lib/librte_eal/freebsd/eal.c
@@ -0,0 +1,1105 @@
+/* SPDX-License-Identifier: BSD-3-Clause
+ * Copyright(c) 2010-2018 Intel Corporation.
+ * Copyright(c) 2014 6WIND S.A.
+ */
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <stdint.h>
+#include <string.h>
+#include <stdarg.h>
+#include <unistd.h>
+#include <pthread.h>
+#include <syslog.h>
+#include <getopt.h>
+#include <sys/file.h>
+#include <stddef.h>
+#include <errno.h>
+#include <limits.h>
+#include <sys/mman.h>
+#include <sys/queue.h>
+#include <sys/stat.h>
+
+#include <rte_compat.h>
+#include <rte_common.h>
+#include <rte_debug.h>
+#include <rte_memory.h>
+#include <rte_launch.h>
+#include <rte_eal.h>
+#include <rte_errno.h>
+#include <rte_per_lcore.h>
+#include <rte_lcore.h>
+#include <rte_service_component.h>
+#include <rte_log.h>
+#include <rte_random.h>
+#include <rte_cycles.h>
+#include <rte_string_fns.h>
+#include <rte_cpuflags.h>
+#include <rte_interrupts.h>
+#include <rte_bus.h>
+#include <rte_dev.h>
+#include <rte_devargs.h>
+#include <rte_version.h>
+#include <rte_vfio.h>
+#include <rte_atomic.h>
+#include <malloc_heap.h>
+#include <rte_telemetry.h>
+
+#include "eal_private.h"
+#include "eal_thread.h"
+#include "eal_internal_cfg.h"
+#include "eal_filesystem.h"
+#include "eal_hugepages.h"
+#include "eal_options.h"
+#include "eal_memcfg.h"
+#include "eal_trace.h"
+
+#define MEMSIZE_IF_NO_HUGE_PAGE (64ULL * 1024ULL * 1024ULL)
+
+/* Allow the application to print its usage message too if set */
+static rte_usage_hook_t rte_application_usage_hook = NULL;
+/* early configuration structure, when memory config is not mmapped */
+static struct rte_mem_config early_mem_config;
+
+/* 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;
+
+static struct flock wr_lock = {
+ .l_type = F_WRLCK,
+ .l_whence = SEEK_SET,
+ .l_start = offsetof(struct rte_mem_config, memsegs),
+ .l_len = sizeof(early_mem_config.memsegs),
+};
+
+/* 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;
+
+/* used by rte_rdtsc() */
+int rte_cycles_vmware_tsc_map;
+
+/* platform-specific runtime dir */
+static char runtime_dir[PATH_MAX];
+
+static const char *default_runtime_dir = "/var/run";
+
+int
+eal_create_runtime_dir(void)
+{
+ const char *directory = default_runtime_dir;
+ const char *xdg_runtime_dir = getenv("XDG_RUNTIME_DIR");
+ const char *fallback = "/tmp";
+ char tmp[PATH_MAX];
+ int ret;
+
+ if (getuid() != 0) {
+ /* try XDG path first, fall back to /tmp */
+ if (xdg_runtime_dir != NULL)
+ directory = xdg_runtime_dir;
+ else
+ directory = fallback;
+ }
+ /* create DPDK subdirectory under runtime dir */
+ ret = snprintf(tmp, sizeof(tmp), "%s/dpdk", directory);
+ if (ret < 0 || ret == sizeof(tmp)) {
+ RTE_LOG(ERR, EAL, "Error creating DPDK runtime path name\n");
+ return -1;
+ }
+
+ /* create prefix-specific subdirectory under DPDK runtime dir */
+ ret = snprintf(runtime_dir, sizeof(runtime_dir), "%s/%s",
+ tmp, eal_get_hugefile_prefix());
+ if (ret < 0 || ret == sizeof(runtime_dir)) {
+ RTE_LOG(ERR, EAL, "Error creating prefix-specific runtime path name\n");
+ return -1;
+ }
+
+ /* create the path if it doesn't exist. no "mkdir -p" here, so do it
+ * step by step.
+ */
+ ret = mkdir(tmp, 0700);
+ if (ret < 0 && errno != EEXIST) {
+ RTE_LOG(ERR, EAL, "Error creating '%s': %s\n",
+ tmp, strerror(errno));
+ return -1;
+ }
+
+ ret = mkdir(runtime_dir, 0700);
+ if (ret < 0 && errno != EEXIST) {
+ RTE_LOG(ERR, EAL, "Error creating '%s': %s\n",
+ runtime_dir, strerror(errno));
+ return -1;
+ }
+
+ return 0;
+}
+
+int
+eal_clean_runtime_dir(void)
+{
+ /* FreeBSD doesn't need this implemented for now, because, unlike Linux,
+ * FreeBSD doesn't create per-process files, so no need to clean up.
+ */
+ return 0;
+}
+
+
+const char *
+rte_eal_get_runtime_dir(void)
+{
+ return runtime_dir;
+}
+
+/* Return user provided mbuf pool ops name */
+const char *
+rte_eal_mbuf_user_pool_ops(void)
+{
+ return internal_config.user_mbuf_pool_ops_name;
+}
+
+/* Return a pointer to the configuration structure */
+struct rte_config *
+rte_eal_get_configuration(void)
+{
+ return &rte_config;
+}
+
+enum rte_iova_mode
+rte_eal_iova_mode(void)
+{
+ return rte_eal_get_configuration()->iova_mode;
+}
+
+/* parse a sysfs (or other) file containing one integer value */
+int
+eal_parse_sysfs_value(const char *filename, unsigned long *val)
+{
+ FILE *f;
+ char buf[BUFSIZ];
+ char *end = NULL;
+
+ if ((f = fopen(filename, "r")) == NULL) {
+ RTE_LOG(ERR, EAL, "%s(): cannot open sysfs value %s\n",
+ __func__, filename);
+ return -1;
+ }
+
+ if (fgets(buf, sizeof(buf), f) == NULL) {
+ RTE_LOG(ERR, EAL, "%s(): cannot read sysfs value %s\n",
+ __func__, filename);
+ fclose(f);
+ return -1;
+ }
+ *val = strtoul(buf, &end, 0);
+ if ((buf[0] == '\0') || (end == NULL) || (*end != '\n')) {
+ RTE_LOG(ERR, EAL, "%s(): cannot parse sysfs value %s\n",
+ __func__, filename);
+ fclose(f);
+ return -1;
+ }
+ fclose(f);
+ return 0;
+}
+
+
+/* create memory configuration in shared/mmap memory. Take out
+ * a write lock on the memsegs, so we can auto-detect primary/secondary.
+ * This means we never close the file while running (auto-close on exit).
+ * We also don't lock the whole file, so that in future we can use read-locks
+ * on other parts, e.g. memzones, to detect if there are running secondary
+ * processes. */
+static int
+rte_eal_config_create(void)
+{
+ size_t page_sz = sysconf(_SC_PAGE_SIZE);
+ size_t cfg_len = sizeof(*rte_config.mem_config);
+ size_t cfg_len_aligned = RTE_ALIGN(cfg_len, page_sz);
+ void *rte_mem_cfg_addr, *mapped_mem_cfg_addr;
+ int retval;
+
+ const char *pathname = eal_runtime_config_path();
+
+ if (internal_config.no_shconf)
+ return 0;
+
+ /* map the config before base address so that we don't waste a page */
+ if (internal_config.base_virtaddr != 0)
+ rte_mem_cfg_addr = (void *)
+ RTE_ALIGN_FLOOR(internal_config.base_virtaddr -
+ sizeof(struct rte_mem_config), page_sz);
+ else
+ rte_mem_cfg_addr = NULL;
+
+ if (mem_cfg_fd < 0){
+ mem_cfg_fd = open(pathname, O_RDWR | O_CREAT, 0600);
+ if (mem_cfg_fd < 0) {
+ RTE_LOG(ERR, EAL, "Cannot open '%s' for rte_mem_config\n",
+ pathname);
+ return -1;
+ }
+ }
+
+ retval = ftruncate(mem_cfg_fd, cfg_len);
+ if (retval < 0){
+ close(mem_cfg_fd);
+ mem_cfg_fd = -1;
+ RTE_LOG(ERR, EAL, "Cannot resize '%s' for rte_mem_config\n",
+ pathname);
+ return -1;
+ }
+
+ retval = fcntl(mem_cfg_fd, F_SETLK, &wr_lock);
+ if (retval < 0){
+ close(mem_cfg_fd);
+ mem_cfg_fd = -1;
+ RTE_LOG(ERR, EAL, "Cannot create lock on '%s'. Is another primary "
+ "process running?\n", pathname);
+ return -1;
+ }
+
+ /* reserve space for config */
+ rte_mem_cfg_addr = eal_get_virtual_area(rte_mem_cfg_addr,
+ &cfg_len_aligned, page_sz, 0, 0);
+ if (rte_mem_cfg_addr == NULL) {
+ RTE_LOG(ERR, EAL, "Cannot mmap memory for rte_config\n");
+ close(mem_cfg_fd);
+ mem_cfg_fd = -1;
+ return -1;
+ }
+
+ /* remap the actual file into the space we've just reserved */
+ mapped_mem_cfg_addr = mmap(rte_mem_cfg_addr,
+ cfg_len_aligned, PROT_READ | PROT_WRITE,
+ MAP_SHARED | MAP_FIXED, mem_cfg_fd, 0);
+ if (mapped_mem_cfg_addr == MAP_FAILED) {
+ RTE_LOG(ERR, EAL, "Cannot remap memory for rte_config\n");
+ munmap(rte_mem_cfg_addr, cfg_len);
+ close(mem_cfg_fd);
+ mem_cfg_fd = -1;
+ return -1;
+ }
+
+ memcpy(rte_mem_cfg_addr, &early_mem_config, sizeof(early_mem_config));
+ rte_config.mem_config = rte_mem_cfg_addr;
+
+ /* store address of the config in the config itself so that secondary
+ * processes could later map the config into this exact location
+ */
+ rte_config.mem_config->mem_cfg_addr = (uintptr_t) rte_mem_cfg_addr;
+
+ return 0;
+}
+
+/* attach to an existing shared memory config */
+static int
+rte_eal_config_attach(void)
+{
+ void *rte_mem_cfg_addr;
+ const char *pathname = eal_runtime_config_path();
+
+ if (internal_config.no_shconf)
+ return 0;
+
+ if (mem_cfg_fd < 0){
+ mem_cfg_fd = open(pathname, O_RDWR);
+ if (mem_cfg_fd < 0) {
+ RTE_LOG(ERR, EAL, "Cannot open '%s' for rte_mem_config\n",
+ pathname);
+ return -1;
+ }
+ }
+
+ rte_mem_cfg_addr = mmap(NULL, sizeof(*rte_config.mem_config),
+ PROT_READ, MAP_SHARED, mem_cfg_fd, 0);
+ /* don't close the fd here, it will be closed on reattach */
+ if (rte_mem_cfg_addr == MAP_FAILED) {
+ close(mem_cfg_fd);
+ mem_cfg_fd = -1;
+ RTE_LOG(ERR, EAL, "Cannot mmap memory for rte_config! error %i (%s)\n",
+ errno, strerror(errno));
+ return -1;
+ }
+
+ rte_config.mem_config = rte_mem_cfg_addr;
+
+ return 0;
+}
+
+/* reattach the shared config at exact memory location primary process has it */
+static int
+rte_eal_config_reattach(void)
+{
+ struct rte_mem_config *mem_config;
+ void *rte_mem_cfg_addr;
+
+ if (internal_config.no_shconf)
+ return 0;
+
+ /* save the address primary process has mapped shared config to */
+ rte_mem_cfg_addr =
+ (void *)(uintptr_t)rte_config.mem_config->mem_cfg_addr;
+
+ /* unmap original config */
+ munmap(rte_config.mem_config, sizeof(struct rte_mem_config));
+
+ /* remap the config at proper address */
+ mem_config = (struct rte_mem_config *) mmap(rte_mem_cfg_addr,
+ sizeof(*mem_config), PROT_READ | PROT_WRITE, MAP_SHARED,
+ mem_cfg_fd, 0);
+ close(mem_cfg_fd);
+ mem_cfg_fd = -1;
+
+ if (mem_config == MAP_FAILED || mem_config != rte_mem_cfg_addr) {
+ if (mem_config != MAP_FAILED) {
+ /* errno is stale, don't use */
+ RTE_LOG(ERR, EAL, "Cannot mmap memory for rte_config at [%p], got [%p]"
+ " - please use '--" OPT_BASE_VIRTADDR
+ "' option\n",
+ rte_mem_cfg_addr, mem_config);
+ munmap(mem_config, sizeof(struct rte_mem_config));
+ return -1;
+ }
+ RTE_LOG(ERR, EAL, "Cannot mmap memory for rte_config! error %i (%s)\n",
+ errno, strerror(errno));
+ return -1;
+ }
+
+ rte_config.mem_config = mem_config;
+
+ return 0;
+}
+
+/* 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 there no shared config, there can be no secondary processes */
+ if (!internal_config.no_shconf) {
+ /* 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.
+ */
+ if (((mem_cfg_fd = open(pathname, O_RDWR)) >= 0) &&
+ (fcntl(mem_cfg_fd, F_SETLK, &wr_lock) < 0))
+ ptype = RTE_PROC_SECONDARY;
+ }
+
+ RTE_LOG(INFO, EAL, "Auto-detected process type: %s\n",
+ ptype == RTE_PROC_PRIMARY ? "PRIMARY" : "SECONDARY");
+
+ return ptype;
+}
+
+/* Sets up rte_config structure with the pointer to shared memory config.*/
+static int
+rte_config_init(void)
+{
+ rte_config.process_type = internal_config.process_type;
+
+ switch (rte_config.process_type){
+ case RTE_PROC_PRIMARY:
+ if (rte_eal_config_create() < 0)
+ return -1;
+ eal_mcfg_update_from_internal();
+ break;
+ case RTE_PROC_SECONDARY:
+ if (rte_eal_config_attach() < 0)
+ return -1;
+ eal_mcfg_wait_complete();
+ if (eal_mcfg_check_version() < 0) {
+ RTE_LOG(ERR, EAL, "Primary and secondary process DPDK version mismatch\n");
+ return -1;
+ }
+ if (rte_eal_config_reattach() < 0)
+ return -1;
+ eal_mcfg_update_internal();
+ break;
+ case RTE_PROC_AUTO:
+ case RTE_PROC_INVALID:
+ RTE_LOG(ERR, EAL, "Invalid process type %d\n",
+ rte_config.process_type);
+ return -1;
+ }
+
+ return 0;
+}
+
+/* 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);
+ }
+}
+
+/* Set a per-application usage message */
+rte_usage_hook_t
+rte_set_application_usage_hook( rte_usage_hook_t usage_func )
+{
+ rte_usage_hook_t old_func;
+
+ /* Will be NULL on the first call to denote the last usage routine. */
+ old_func = rte_application_usage_hook;
+ rte_application_usage_hook = usage_func;
+
+ return old_func;
+}
+
+static inline size_t
+eal_get_hugepage_mem_size(void)
+{
+ uint64_t size = 0;
+ unsigned i, j;
+
+ for (i = 0; i < internal_config.num_hugepage_sizes; i++) {
+ struct hugepage_info *hpi = &internal_config.hugepage_info[i];
+ if (strnlen(hpi->hugedir, sizeof(hpi->hugedir)) != 0) {
+ for (j = 0; j < RTE_MAX_NUMA_NODES; j++) {
+ size += hpi->hugepage_sz * hpi->num_pages[j];
+ }
+ }
+ }
+
+ return (size < SIZE_MAX) ? (size_t)(size) : SIZE_MAX;
+}
+
+/* Parse the arguments for --log-level only */
+static void
+eal_log_level_parse(int argc, char **argv)
+{
+ int opt;
+ char **argvopt;
+ int option_index;
+ const int old_optind = optind;
+ const int old_optopt = optopt;
+ const int old_optreset = optreset;
+ char * const old_optarg = optarg;
+
+ argvopt = argv;
+ optind = 1;
+ optreset = 1;
+
+ 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;
+ }
+
+ /* restore getopt lib */
+ optind = old_optind;
+ optopt = old_optopt;
+ optreset = old_optreset;
+ optarg = old_optarg;
+}
+
+/* Parse the argument given in the command line of the application */
+static int
+eal_parse_args(int argc, char **argv)
+{
+ int opt, ret;
+ char **argvopt;
+ int option_index;
+ char *prgname = argv[0];
+ const int old_optind = optind;
+ const int old_optopt = optopt;
+ const int old_optreset = optreset;
+ char * const old_optarg = optarg;
+
+ argvopt = argv;
+ optind = 1;
+ optreset = 1;
+
+ while ((opt = getopt_long(argc, argvopt, eal_short_options,
+ eal_long_options, &option_index)) != EOF) {
+
+ /* getopt didn't recognise the option */
+ if (opt == '?') {
+ eal_usage(prgname);
+ ret = -1;
+ goto out;
+ }
+
+ ret = eal_parse_common_option(opt, optarg, &internal_config);
+ /* common parser is not happy */
+ if (ret < 0) {
+ eal_usage(prgname);
+ ret = -1;
+ goto out;
+ }
+ /* common parser handled this option */
+ if (ret == 0)
+ continue;
+
+ switch (opt) {
+ case OPT_MBUF_POOL_OPS_NAME_NUM:
+ {
+ char *ops_name = strdup(optarg);
+ if (ops_name == NULL)
+ RTE_LOG(ERR, EAL, "Could not store mbuf pool ops name\n");
+ else {
+ /* free old ops name */
+ if (internal_config.user_mbuf_pool_ops_name !=
+ NULL)
+ free(internal_config.user_mbuf_pool_ops_name);
+
+ internal_config.user_mbuf_pool_ops_name =
+ ops_name;
+ }
+ break;
+ }
+ 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 FreeBSD\n", opt);
+ } else if (opt >= OPT_LONG_MIN_NUM &&
+ opt < OPT_LONG_MAX_NUM) {
+ RTE_LOG(ERR, EAL, "Option %s is not supported "
+ "on FreeBSD\n",
+ eal_long_options[option_index].name);
+ } else {
+ RTE_LOG(ERR, EAL, "Option %d is not supported "
+ "on FreeBSD\n", opt);
+ }
+ eal_usage(prgname);
+ ret = -1;
+ goto out;
+ }
+ }
+
+ /* create runtime data directory */
+ if (internal_config.no_shconf == 0 &&
+ eal_create_runtime_dir() < 0) {
+ RTE_LOG(ERR, EAL, "Cannot create runtime directory\n");
+ ret = -1;
+ goto out;
+ }
+
+ if (eal_adjust_config(&internal_config) != 0) {
+ ret = -1;
+ goto out;
+ }
+
+ /* sanity checks */
+ if (eal_check_common_options(&internal_config) != 0) {
+ eal_usage(prgname);
+ ret = -1;
+ goto out;
+ }
+
+ if (optind >= 0)
+ argv[optind-1] = prgname;
+ ret = optind-1;
+
+out:
+ /* restore getopt lib */
+ optind = old_optind;
+ optopt = old_optopt;
+ optreset = old_optreset;
+ optarg = old_optarg;
+
+ return ret;
+}
+
+static int
+check_socket(const struct rte_memseg_list *msl, void *arg)
+{
+ int *socket_id = arg;
+
+ if (msl->external)
+ return 0;
+
+ if (msl->socket_id == *socket_id && msl->memseg_arr.count != 0)
+ return 1;
+
+ return 0;
+}
+
+static void
+eal_check_mem_on_local_socket(void)
+{
+ int socket_id;
+
+ socket_id = rte_lcore_to_socket_id(rte_config.master_lcore);
+
+ if (rte_memseg_list_walk(check_socket, &socket_id) == 0)
+ RTE_LOG(WARNING, EAL, "WARNING: Master core has no memory on local socket!\n");
+}
+
+
+static int
+sync_func(__rte_unused void *arg)
+{
+ return 0;
+}
+
+/* return non-zero if hugepages are enabled. */
+int rte_eal_has_hugepages(void)
+{
+ return !internal_config.no_hugetlbfs;
+}
+
+/* Abstraction for port I/0 privilege */
+int
+rte_eal_iopl_init(void)
+{
+ static int fd = -1;
+
+ if (fd < 0)
+ fd = open("/dev/io", O_RDWR);
+
+ if (fd < 0)
+ return -1;
+ /* keep fd open for iopl */
+ 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, ret;
+ pthread_t thread_id;
+ static rte_atomic32_t run_once = RTE_ATOMIC32_INIT(0);
+ char cpuset[RTE_CPU_AFFINITY_STR_LEN];
+ char thread_name[RTE_MAX_THREAD_NAME_LEN];
+
+ /* checks if the machine is adequate */
+ if (!rte_cpu_is_supported()) {
+ rte_eal_init_alert("unsupported cpu type.");
+ rte_errno = ENOTSUP;
+ return -1;
+ }
+
+ if (!rte_atomic32_test_and_set(&run_once)) {
+ rte_eal_init_alert("already called initialization.");
+ rte_errno = EALREADY;
+ return -1;
+ }
+
+ thread_id = pthread_self();
+
+ eal_reset_internal_config(&internal_config);
+
+ /* clone argv to report out later in telemetry */
+ eal_save_args(argc, argv);
+
+ /* set log level as early as possible */
+ eal_log_level_parse(argc, argv);
+
+ 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) {
+ rte_eal_init_alert("Invalid 'command line' arguments.");
+ rte_errno = EINVAL;
+ rte_atomic32_clear(&run_once);
+ return -1;
+ }
+
+ /* FreeBSD always uses legacy memory model */
+ internal_config.legacy_mem = true;
+
+ if (eal_plugins_init() < 0) {
+ rte_eal_init_alert("Cannot init plugins");
+ rte_errno = EINVAL;
+ rte_atomic32_clear(&run_once);
+ return -1;
+ }
+
+ if (eal_trace_init() < 0) {
+ rte_eal_init_alert("Cannot init trace");
+ rte_errno = EFAULT;
+ rte_atomic32_clear(&run_once);
+ return -1;
+ }
+
+ if (eal_option_device_parse()) {
+ rte_errno = ENODEV;
+ rte_atomic32_clear(&run_once);
+ return -1;
+ }
+
+ if (rte_config_init() < 0) {
+ rte_eal_init_alert("Cannot init config");
+ return -1;
+ }
+
+ if (rte_eal_intr_init() < 0) {
+ rte_eal_init_alert("Cannot init interrupt-handling thread");
+ return -1;
+ }
+
+ if (rte_eal_alarm_init() < 0) {
+ rte_eal_init_alert("Cannot init alarm");
+ /* rte_eal_alarm_init sets rte_errno on failure. */
+ return -1;
+ }
+
+ /* Put mp channel init before bus scan so that we can init the vdev
+ * bus through mp channel in the secondary process before the bus scan.
+ */
+ if (rte_mp_channel_init() < 0 && rte_errno != ENOTSUP) {
+ rte_eal_init_alert("failed to init mp channel");
+ if (rte_eal_process_type() == RTE_PROC_PRIMARY) {
+ rte_errno = EFAULT;
+ return -1;
+ }
+ }
+
+ if (rte_bus_scan()) {
+ rte_eal_init_alert("Cannot scan the buses for devices");
+ rte_errno = ENODEV;
+ rte_atomic32_clear(&run_once);
+ return -1;
+ }
+
+ /* if no EAL option "--iova-mode=<pa|va>", use bus IOVA scheme */
+ if (internal_config.iova_mode == RTE_IOVA_DC) {
+ /* autodetect the IOVA mapping mode (default is RTE_IOVA_PA) */
+ enum rte_iova_mode iova_mode = rte_bus_get_iommu_class();
+
+ if (iova_mode == RTE_IOVA_DC)
+ iova_mode = RTE_IOVA_PA;
+ rte_eal_get_configuration()->iova_mode = iova_mode;
+ } else {
+ rte_eal_get_configuration()->iova_mode =
+ internal_config.iova_mode;
+ }
+
+ RTE_LOG(INFO, EAL, "Selected IOVA mode '%s'\n",
+ rte_eal_iova_mode() == RTE_IOVA_PA ? "PA" : "VA");
+
+ if (internal_config.no_hugetlbfs == 0) {
+ /* rte_config isn't initialized yet */
+ ret = internal_config.process_type == RTE_PROC_PRIMARY ?
+ eal_hugepage_info_init() :
+ eal_hugepage_info_read();
+ if (ret < 0) {
+ rte_eal_init_alert("Cannot get hugepage information.");
+ rte_errno = EACCES;
+ rte_atomic32_clear(&run_once);
+ return -1;
+ }
+ }
+
+ if (internal_config.memory == 0 && internal_config.force_sockets == 0) {
+ if (internal_config.no_hugetlbfs)
+ internal_config.memory = MEMSIZE_IF_NO_HUGE_PAGE;
+ else
+ internal_config.memory = eal_get_hugepage_mem_size();
+ }
+
+ if (internal_config.vmware_tsc_map == 1) {
+#ifdef RTE_LIBRTE_EAL_VMWARE_TSC_MAP_SUPPORT
+ rte_cycles_vmware_tsc_map = 1;
+ RTE_LOG (DEBUG, EAL, "Using VMWARE TSC MAP, "
+ "you must have monitor_control.pseudo_perfctr = TRUE\n");
+#else
+ RTE_LOG (WARNING, EAL, "Ignoring --vmware-tsc-map because "
+ "RTE_LIBRTE_EAL_VMWARE_TSC_MAP_SUPPORT is not set\n");
+#endif
+ }
+
+ /* in secondary processes, memory init may allocate additional fbarrays
+ * not present in primary processes, so to avoid any potential issues,
+ * initialize memzones first.
+ */
+ if (rte_eal_memzone_init() < 0) {
+ rte_eal_init_alert("Cannot init memzone");
+ rte_errno = ENODEV;
+ return -1;
+ }
+
+ if (rte_eal_memory_init() < 0) {
+ rte_eal_init_alert("Cannot init memory");
+ rte_errno = ENOMEM;
+ return -1;
+ }
+
+ if (rte_eal_malloc_heap_init() < 0) {
+ rte_eal_init_alert("Cannot init malloc heap");
+ rte_errno = ENODEV;
+ return -1;
+ }
+
+ if (rte_eal_tailqs_init() < 0) {
+ rte_eal_init_alert("Cannot init tail queues for objects");
+ rte_errno = EFAULT;
+ return -1;
+ }
+
+ if (rte_eal_timer_init() < 0) {
+ rte_eal_init_alert("Cannot init HPET or TSC timers");
+ rte_errno = ENOTSUP;
+ return -1;
+ }
+
+ eal_check_mem_on_local_socket();
+
+ eal_thread_init_master(rte_config.master_lcore);
+
+ ret = eal_thread_dump_affinity(cpuset, sizeof(cpuset));
+
+ RTE_LOG(DEBUG, EAL, "Master lcore %u is ready (tid=%p;cpuset=[%s%s])\n",
+ rte_config.master_lcore, thread_id, cpuset,
+ ret == 0 ? "" : "...");
+
+ RTE_LCORE_FOREACH_SLAVE(i) {
+
+ /*
+ * create communication pipes between master thread
+ * and children
+ */
+ if (pipe(lcore_config[i].pipe_master2slave) < 0)
+ rte_panic("Cannot create pipe\n");
+ if (pipe(lcore_config[i].pipe_slave2master) < 0)
+ rte_panic("Cannot create pipe\n");
+
+ lcore_config[i].state = WAIT;
+
+ /* create a thread for each lcore */
+ ret = pthread_create(&lcore_config[i].thread_id, NULL,
+ eal_thread_loop, NULL);
+ if (ret != 0)
+ rte_panic("Cannot create thread\n");
+
+ /* Set thread_name for aid in debugging. */
+ snprintf(thread_name, sizeof(thread_name),
+ "lcore-slave-%d", i);
+ rte_thread_setname(lcore_config[i].thread_id, thread_name);
+ }
+
+ /*
+ * 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();
+
+ /* initialize services so vdevs register service during bus_probe. */
+ ret = rte_service_init();
+ if (ret) {
+ rte_eal_init_alert("rte_service_init() failed");
+ rte_errno = ENOEXEC;
+ return -1;
+ }
+
+ /* Probe all the buses and devices/drivers on them */
+ if (rte_bus_probe()) {
+ rte_eal_init_alert("Cannot probe devices");
+ rte_errno = ENOTSUP;
+ return -1;
+ }
+
+ /* initialize default service/lcore mappings and start running. Ignore
+ * -ENOTSUP, as it indicates no service coremask passed to EAL.
+ */
+ ret = rte_service_start_with_defaults();
+ if (ret < 0 && ret != -ENOTSUP) {
+ rte_errno = ENOEXEC;
+ return -1;
+ }
+
+ /*
+ * Clean up unused files in runtime directory. We do this at the end of
+ * init and not at the beginning because we want to clean stuff up
+ * whether we are primary or secondary process, but we cannot remove
+ * primary process' files because secondary should be able to run even
+ * if primary process is dead.
+ *
+ * In no_shconf mode, no runtime directory is created in the first
+ * place, so no cleanup needed.
+ */
+ if (!internal_config.no_shconf && eal_clean_runtime_dir() < 0) {
+ rte_eal_init_alert("Cannot clear runtime directory\n");
+ return -1;
+ }
+ if (!internal_config.no_telemetry) {
+ const char *error_str = NULL;
+ if (rte_telemetry_init(rte_eal_get_runtime_dir(),
+ &internal_config.ctrl_cpuset, &error_str)
+ != 0) {
+ rte_eal_init_alert(error_str);
+ return -1;
+ }
+ if (error_str != NULL)
+ RTE_LOG(NOTICE, EAL, "%s\n", error_str);
+ }
+
+ eal_mcfg_complete();
+
+ return fctret;
+}
+
+int
+rte_eal_cleanup(void)
+{
+ rte_service_finalize();
+ rte_mp_channel_cleanup();
+ rte_trace_save();
+ eal_trace_fini();
+ eal_cleanup_config(&internal_config);
+ return 0;
+}
+
+enum rte_proc_type_t
+rte_eal_process_type(void)
+{
+ return rte_config.process_type;
+}
+
+int rte_eal_has_pci(void)
+{
+ return !internal_config.no_pci;
+}
+
+int rte_eal_create_uio_dev(void)
+{
+ return internal_config.create_uio_dev;
+}
+
+enum rte_intr_mode
+rte_eal_vfio_intr_mode(void)
+{
+ return RTE_INTR_MODE_NONE;
+}
+
+int rte_vfio_setup_device(__rte_unused const char *sysfs_base,
+ __rte_unused const char *dev_addr,
+ __rte_unused int *vfio_dev_fd,
+ __rte_unused struct vfio_device_info *device_info)
+{
+ return -1;
+}
+
+int rte_vfio_release_device(__rte_unused const char *sysfs_base,
+ __rte_unused const char *dev_addr,
+ __rte_unused int fd)
+{
+ return -1;
+}
+
+int rte_vfio_enable(__rte_unused const char *modname)
+{
+ return -1;
+}
+
+int rte_vfio_is_enabled(__rte_unused const char *modname)
+{
+ return 0;
+}
+
+int rte_vfio_noiommu_is_enabled(void)
+{
+ return 0;
+}
+
+int rte_vfio_clear_group(__rte_unused int vfio_group_fd)
+{
+ return 0;
+}
+
+int
+rte_vfio_get_group_num(__rte_unused const char *sysfs_base,
+ __rte_unused const char *dev_addr,
+ __rte_unused int *iommu_group_num)
+{
+ return -1;
+}
+
+int
+rte_vfio_get_container_fd(void)
+{
+ return -1;
+}
+
+int
+rte_vfio_get_group_fd(__rte_unused int iommu_group_num)
+{
+ return -1;
+}
+
+int
+rte_vfio_container_create(void)
+{
+ return -1;
+}
+
+int
+rte_vfio_container_destroy(__rte_unused int container_fd)
+{
+ return -1;
+}
+
+int
+rte_vfio_container_group_bind(__rte_unused int container_fd,
+ __rte_unused int iommu_group_num)
+{
+ return -1;
+}
+
+int
+rte_vfio_container_group_unbind(__rte_unused int container_fd,
+ __rte_unused int iommu_group_num)
+{
+ return -1;
+}
+
+int
+rte_vfio_container_dma_map(__rte_unused int container_fd,
+ __rte_unused uint64_t vaddr,
+ __rte_unused uint64_t iova,
+ __rte_unused uint64_t len)
+{
+ return -1;
+}
+
+int
+rte_vfio_container_dma_unmap(__rte_unused int container_fd,
+ __rte_unused uint64_t vaddr,
+ __rte_unused uint64_t iova,
+ __rte_unused uint64_t len)
+{
+ return -1;
+}
generated by cgit v1.2.3 (git 2.39.1) at 2025-02-11 00:48:28 +0000