diff options
Diffstat (limited to 'src/dpdk_lib18/librte_eal/bsdapp/eal/eal.c')
| -rwxr-xr-x | src/dpdk_lib18/librte_eal/bsdapp/eal/eal.c | 563 |
1 files changed, 0 insertions, 563 deletions
diff --git a/src/dpdk_lib18/librte_eal/bsdapp/eal/eal.c b/src/dpdk_lib18/librte_eal/bsdapp/eal/eal.c deleted file mode 100755 index 69f3c034..00000000 --- a/src/dpdk_lib18/librte_eal/bsdapp/eal/eal.c +++ /dev/null @@ -1,563 +0,0 @@ -/*- - * BSD LICENSE - * - * Copyright(c) 2010-2014 Intel Corporation. All rights reserved. - * Copyright(c) 2014 6WIND S.A. - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * - * * Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * * Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in - * the documentation and/or other materials provided with the - * distribution. - * * Neither the name of Intel Corporation nor the names of its - * contributors may be used to endorse or promote products derived - * from this software without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS - * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT - * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR - * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT - * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, - * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT - * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, - * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY - * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT - * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE - * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. - */ - -#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 <errno.h> -#include <sys/mman.h> -#include <sys/queue.h> - -#include <rte_common.h> -#include <rte_debug.h> -#include <rte_memory.h> -#include <rte_memzone.h> -#include <rte_launch.h> -#include <rte_tailq.h> -#include <rte_eal.h> -#include <rte_eal_memconfig.h> -#include <rte_per_lcore.h> -#include <rte_lcore.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_pci.h> -#include <rte_dev.h> -#include <rte_devargs.h> -#include <rte_common.h> -#include <rte_version.h> -#include <rte_atomic.h> -#include <malloc_heap.h> -#include <rte_eth_ring.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" - -#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, memseg), - .l_len = sizeof(early_mem_config.memseg), -}; - -/* 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; - -/* Return a pointer to the configuration structure */ -struct rte_config * -rte_eal_get_configuration(void) -{ - return &rte_config; -} - -/* 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 void -rte_eal_config_create(void) -{ - void *rte_mem_cfg_addr; - int retval; - - const char *pathname = eal_runtime_config_path(); - - if (internal_config.no_shconf) - return; - - if (mem_cfg_fd < 0){ - mem_cfg_fd = open(pathname, O_RDWR | O_CREAT, 0660); - if (mem_cfg_fd < 0) - rte_panic("Cannot open '%s' for rte_mem_config\n", pathname); - } - - retval = ftruncate(mem_cfg_fd, sizeof(*rte_config.mem_config)); - if (retval < 0){ - close(mem_cfg_fd); - rte_panic("Cannot resize '%s' for rte_mem_config\n", pathname); - } - - retval = fcntl(mem_cfg_fd, F_SETLK, &wr_lock); - if (retval < 0){ - close(mem_cfg_fd); - rte_exit(EXIT_FAILURE, "Cannot create lock on '%s'. Is another primary " - "process running?\n", pathname); - } - - rte_mem_cfg_addr = mmap(NULL, sizeof(*rte_config.mem_config), - PROT_READ | PROT_WRITE, MAP_SHARED, mem_cfg_fd, 0); - - if (rte_mem_cfg_addr == MAP_FAILED){ - rte_panic("Cannot mmap memory for rte_config\n"); - } - memcpy(rte_mem_cfg_addr, &early_mem_config, sizeof(early_mem_config)); - rte_config.mem_config = (struct rte_mem_config *) rte_mem_cfg_addr; -} - -/* attach to an existing shared memory config */ -static void -rte_eal_config_attach(void) -{ - void *rte_mem_cfg_addr; - const char *pathname = eal_runtime_config_path(); - - if (internal_config.no_shconf) - return; - - if (mem_cfg_fd < 0){ - mem_cfg_fd = open(pathname, O_RDWR); - if (mem_cfg_fd < 0) - rte_panic("Cannot open '%s' for rte_mem_config\n", pathname); - } - - rte_mem_cfg_addr = mmap(NULL, sizeof(*rte_config.mem_config), - PROT_READ | PROT_WRITE, MAP_SHARED, mem_cfg_fd, 0); - close(mem_cfg_fd); - if (rte_mem_cfg_addr == MAP_FAILED) - rte_panic("Cannot mmap memory for rte_config\n"); - - rte_config.mem_config = (struct rte_mem_config *) rte_mem_cfg_addr; -} - -/* 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 */ - 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 void -rte_config_init(void) -{ - rte_config.process_type = internal_config.process_type; - - switch (rte_config.process_type){ - case RTE_PROC_PRIMARY: - rte_eal_config_create(); - break; - case RTE_PROC_SECONDARY: - rte_eal_config_attach(); - rte_eal_mcfg_wait_complete(rte_config.mem_config); - break; - case RTE_PROC_AUTO: - case RTE_PROC_INVALID: - rte_panic("Invalid process type\n"); - } -} - -/* 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 (hpi->hugedir != NULL) { - 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 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]; - - 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 == '?') - 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) { - 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); - 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 void -eal_check_mem_on_local_socket(void) -{ - const struct rte_memseg *ms; - int i, socket_id; - - socket_id = rte_lcore_to_socket_id(rte_config.master_lcore); - - ms = rte_eal_get_physmem_layout(); - - for (i = 0; i < RTE_MAX_MEMSEG; i++) - if (ms[i].socket_id == socket_id && - ms[i].len > 0) - return; - - RTE_LOG(WARNING, EAL, "WARNING: Master core has no " - "memory on local socket!\n"); -} - -static int -sync_func(__attribute__((unused)) void *arg) -{ - return 0; -} - -inline static void -rte_eal_mcfg_complete(void) -{ - /* ALL shared mem_config related INIT DONE */ - if (rte_config.process_type == RTE_PROC_PRIMARY) - rte_config.mem_config->magic = RTE_MAGIC; -} - -/* 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) -{ - int fd = -1; - fd = open("/dev/io", O_RDWR); - if (fd < 0) - return -1; - close(fd); - return 0; -} - -/* 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); - - if (!rte_atomic32_test_and_set(&run_once)) - return -1; - - thread_id = pthread_self(); - - if (rte_eal_log_early_init() < 0) - rte_panic("Cannot init early logs\n"); - - if (rte_eal_cpu_init() < 0) - rte_panic("Cannot detect lcores\n"); - - fctret = eal_parse_args(argc, argv); - if (fctret < 0) - exit(1); - - /* set log level as early as possible */ - rte_set_log_level(internal_config.log_level); - - if (internal_config.no_hugetlbfs == 0 && - internal_config.process_type != RTE_PROC_SECONDARY && - eal_hugepage_info_init() < 0) - rte_panic("Cannot get hugepage information\n"); - - 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 - } - - rte_srand(rte_rdtsc()); - - rte_config_init(); - - if (rte_eal_memory_init() < 0) - rte_panic("Cannot init memory\n"); - - if (rte_eal_memzone_init() < 0) - rte_panic("Cannot init memzone\n"); - - if (rte_eal_tailqs_init() < 0) - rte_panic("Cannot init tail queues for objects\n"); - -/* if (rte_eal_log_init(argv[0], internal_config.syslog_facility) < 0) - rte_panic("Cannot init logs\n");*/ - - if (rte_eal_alarm_init() < 0) - rte_panic("Cannot init interrupt-handling thread\n"); - - if (rte_eal_intr_init() < 0) - rte_panic("Cannot init interrupt-handling thread\n"); - - if (rte_eal_timer_init() < 0) - rte_panic("Cannot init HPET or TSC timers\n"); - - if (rte_eal_pci_init() < 0) - rte_panic("Cannot init PCI\n"); - - RTE_LOG(DEBUG, EAL, "Master core %u is ready (tid=%p)\n", - rte_config.master_lcore, thread_id); - - eal_check_mem_on_local_socket(); - - rte_eal_mcfg_complete(); - - if (rte_eal_dev_init() < 0) - rte_panic("Cannot init pmd devices\n"); - - 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"); - } - - eal_thread_init_master(rte_config.master_lcore); - - /* - * 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(); - - /* Probe & Initialize PCI devices */ - if (rte_eal_pci_probe()) - rte_panic("Cannot probe PCI\n"); - - return fctret; -} - -/* get core role */ -enum rte_lcore_role_t -rte_eal_lcore_role(unsigned lcore_id) -{ - return (rte_config.lcore_role[lcore_id]); -} - -enum rte_proc_type_t -rte_eal_process_type(void) -{ - return (rte_config.process_type); -} - |