eal/linux: change log severity levels
[dpdk.git] / lib / librte_eal / linuxapp / eal / eal.c
index d82debf..43efd9e 100644 (file)
 #include <errno.h>
 #include <sys/mman.h>
 #include <sys/queue.h>
+#if defined(RTE_ARCH_X86_64) || defined(RTE_ARCH_I686)
 #include <sys/io.h>
+#endif
 
 #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>
@@ -75,7 +76,6 @@
 #include <rte_atomic.h>
 #include <malloc_heap.h>
 #include <rte_eth_ring.h>
-#include <rte_dev.h>
 
 #include "eal_private.h"
 #include "eal_thread.h"
@@ -88,8 +88,6 @@
 
 #define SOCKET_MEM_STRLEN (RTE_MAX_NUMA_NODES * 10)
 
-#define HIGHEST_RPL 3
-
 /* Allow the application to print its usage message too if set */
 static rte_usage_hook_t        rte_application_usage_hook = NULL;
 
@@ -287,7 +285,7 @@ rte_eal_config_reattach(void)
 }
 
 /* Detect if we are a primary or a secondary process */
-static enum rte_proc_type_t
+enum rte_proc_type_t
 eal_proc_type_detect(void)
 {
        enum rte_proc_type_t ptype = RTE_PROC_PRIMARY;
@@ -310,9 +308,7 @@ eal_proc_type_detect(void)
 static void
 rte_config_init(void)
 {
-       rte_config.process_type = (internal_config.process_type == RTE_PROC_AUTO) ?
-                       eal_proc_type_detect() : /* for auto, detect the type */
-                       internal_config.process_type; /* otherwise use what's already set */
+       rte_config.process_type = internal_config.process_type;
 
        switch (rte_config.process_type){
        case RTE_PROC_PRIMARY:
@@ -355,17 +351,14 @@ eal_usage(const char *prgname)
        printf("\nUsage: %s ", prgname);
        eal_common_usage();
        printf("EAL Linux options:\n"
-              "  -d LIB.so    : add driver (can be used multiple times)\n"
-              "  --"OPT_XEN_DOM0" : support application running on Xen Domain0 "
-                          "without hugetlbfs\n"
-              "  --"OPT_SOCKET_MEM" : memory to allocate on specific\n"
-                  "                 sockets (use comma separated values)\n"
-              "  --"OPT_HUGE_DIR"   : directory where hugetlbfs is mounted\n"
-              "  --"OPT_FILE_PREFIX": prefix for hugepage filenames\n"
-              "  --"OPT_BASE_VIRTADDR": specify base virtual address\n"
-              "  --"OPT_VFIO_INTR": specify desired interrupt mode for VFIO "
-                          "(legacy|msi|msix)\n"
-              "  --"OPT_CREATE_UIO_DEV": create /dev/uioX (usually done by hotplug)\n"
+              "  -d LIB.so           Add driver (can be used multiple times)\n"
+              "  --"OPT_SOCKET_MEM"        Memory to allocate on sockets (comma separated values)\n"
+              "  --"OPT_HUGE_DIR"          Directory where hugetlbfs is mounted\n"
+              "  --"OPT_FILE_PREFIX"       Prefix for hugepage filenames\n"
+              "  --"OPT_BASE_VIRTADDR"     Base virtual address\n"
+              "  --"OPT_CREATE_UIO_DEV"    Create /dev/uioX (usually done by hotplug)\n"
+              "  --"OPT_VFIO_INTR"         Interrupt mode for VFIO (legacy|msi|msix)\n"
+              "  --"OPT_XEN_DOM0"          Support running on Xen dom0 without hugetlbfs\n"
               "\n");
        /* Allow the application to print its usage message too if hook is set */
        if ( rte_application_usage_hook ) {
@@ -451,14 +444,17 @@ eal_parse_base_virtaddr(const char *arg)
                return -1;
 
        /* make sure we don't exceed 32-bit boundary on 32-bit target */
-#ifndef RTE_ARCH_X86_64
+#ifndef RTE_ARCH_64
        if (addr >= UINTPTR_MAX)
                return -1;
 #endif
 
-       /* align the addr on 2M boundary */
-       internal_config.base_virtaddr = RTE_PTR_ALIGN_CEIL((uintptr_t)addr,
-                                                          RTE_PGSIZE_2M);
+       /* align the addr on 16M boundary, 16MB is the minimum huge page
+        * size on IBM Power architecture. If the addr is aligned to 16MB,
+        * it can align to 2MB for x86. So this alignment can also be used
+        * on x86 */
+       internal_config.base_virtaddr =
+               RTE_PTR_ALIGN_CEIL((uintptr_t)addr, (size_t)RTE_PGSIZE_16M);
 
        return 0;
 }
@@ -503,73 +499,76 @@ eal_get_hugepage_mem_size(void)
        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;
+
+       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 */
 static int
 eal_parse_args(int argc, char **argv)
 {
-       int opt, ret, i;
+       int opt, ret;
        char **argvopt;
        int option_index;
-       int coremask_ok = 0;
        char *prgname = argv[0];
        struct shared_driver *solib;
 
        argvopt = argv;
 
-       internal_config.memory = 0;
-       internal_config.force_nrank = 0;
-       internal_config.force_nchannel = 0;
-       internal_config.hugefile_prefix = HUGEFILE_PREFIX_DEFAULT;
-       internal_config.hugepage_dir = NULL;
-       internal_config.force_sockets = 0;
-       internal_config.syslog_facility = LOG_DAEMON;
-       /* default value from build option */
-       internal_config.log_level = RTE_LOG_LEVEL;
-       internal_config.xen_dom0_support = 0;
-       /* if set to NONE, interrupt mode is determined automatically */
-       internal_config.vfio_intr_mode = RTE_INTR_MODE_NONE;
-#ifdef RTE_LIBEAL_USE_HPET
-       internal_config.no_hpet = 0;
-#else
-       internal_config.no_hpet = 1;
-#endif
-       /* zero out the NUMA config */
-       for (i = 0; i < RTE_MAX_NUMA_NODES; i++)
-               internal_config.socket_mem[i] = 0;
-
-       /* zero out hugedir descriptors */
-       for (i = 0; i < MAX_HUGEPAGE_SIZES; i++)
-               internal_config.hugepage_info[i].lock_descriptor = -1;
-
-       internal_config.vmware_tsc_map = 0;
-       internal_config.base_virtaddr = 0;
-
        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 == '?')
+               if (opt == '?') {
+                       eal_usage(prgname);
                        return -1;
+               }
 
-               ret = eal_parse_common_option(opt, optarg, option_index,
-                                             &internal_config);
+               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) {
-                       /* special case, note that the common parser accepted
-                        * the coremask option */
-                       if (opt == 'c')
-                               coremask_ok = 1;
+               if (ret == 0)
                        continue;
-               }
 
                switch (opt) {
+               case 'h':
+                       eal_usage(prgname);
+                       exit(EXIT_SUCCESS);
+
                /* force loading of external driver */
                case 'd':
                        solib = malloc(sizeof(*solib));
@@ -584,56 +583,65 @@ eal_parse_args(int argc, char **argv)
                        break;
 
                /* long options */
-               case 0:
-                       if (!strcmp(eal_long_options[option_index].name, OPT_XEN_DOM0)) {
-               #ifdef RTE_LIBRTE_XEN_DOM0
-                               internal_config.xen_dom0_support = 1;
-               #else
-                               RTE_LOG(ERR, EAL, "Can't support DPDK app "
-                                       "running on Dom0, please configure"
-                                       " RTE_LIBRTE_XEN_DOM0=y\n");
+               case OPT_XEN_DOM0_NUM:
+#ifdef RTE_LIBRTE_XEN_DOM0
+                       internal_config.xen_dom0_support = 1;
+#else
+                       RTE_LOG(ERR, EAL, "Can't support DPDK app "
+                               "running on Dom0, please configure"
+                               " RTE_LIBRTE_XEN_DOM0=y\n");
+                       return -1;
+#endif
+                       break;
+
+               case OPT_HUGE_DIR_NUM:
+                       internal_config.hugepage_dir = optarg;
+                       break;
+
+               case OPT_FILE_PREFIX_NUM:
+                       internal_config.hugefile_prefix = optarg;
+                       break;
+
+               case OPT_SOCKET_MEM_NUM:
+                       if (eal_parse_socket_mem(optarg) < 0) {
+                               RTE_LOG(ERR, EAL, "invalid parameters for --"
+                                               OPT_SOCKET_MEM "\n");
+                               eal_usage(prgname);
                                return -1;
-               #endif
-                       } else if (!strcmp(eal_long_options[option_index].name, OPT_HUGE_DIR)) {
-                               internal_config.hugepage_dir = optarg;
-                       } else if (!strcmp(eal_long_options[option_index].name, OPT_FILE_PREFIX)) {
-                               internal_config.hugefile_prefix = optarg;
-                       } else if (!strcmp(eal_long_options[option_index].name, OPT_SOCKET_MEM)) {
-                               if (eal_parse_socket_mem(optarg) < 0) {
-                                       RTE_LOG(ERR, EAL, "invalid parameters for --"
-                                                       OPT_SOCKET_MEM "\n");
-                                       eal_usage(prgname);
-                                       return -1;
-                               }
-                       } else if (!strcmp(eal_long_options[option_index].name, OPT_BASE_VIRTADDR)) {
-                               if (eal_parse_base_virtaddr(optarg) < 0) {
-                                       RTE_LOG(ERR, EAL, "invalid parameter for --"
-                                                       OPT_BASE_VIRTADDR "\n");
-                                       eal_usage(prgname);
-                                       return -1;
-                               }
-                       } else if (!strcmp(eal_long_options[option_index].name, OPT_VFIO_INTR)) {
-                               if (eal_parse_vfio_intr(optarg) < 0) {
-                                       RTE_LOG(ERR, EAL, "invalid parameters for --"
-                                                       OPT_VFIO_INTR "\n");
-                                       eal_usage(prgname);
-                                       return -1;
-                               }
-                       } else if (!strcmp(eal_long_options[option_index].name, OPT_CREATE_UIO_DEV)) {
-                               internal_config.create_uio_dev = 1;
-                       } else {
-                               RTE_LOG(ERR, EAL, "Option %s is not supported "
-                                       "on Linux\n",
-                                       eal_long_options[option_index].name);
+                       }
+                       break;
+
+               case OPT_BASE_VIRTADDR_NUM:
+                       if (eal_parse_base_virtaddr(optarg) < 0) {
+                               RTE_LOG(ERR, EAL, "invalid parameter for --"
+                                               OPT_BASE_VIRTADDR "\n");
+                               eal_usage(prgname);
+                               return -1;
+                       }
+                       break;
+
+               case OPT_VFIO_INTR_NUM:
+                       if (eal_parse_vfio_intr(optarg) < 0) {
+                               RTE_LOG(ERR, EAL, "invalid parameters for --"
+                                               OPT_VFIO_INTR "\n");
                                eal_usage(prgname);
                                return -1;
                        }
                        break;
 
+               case OPT_CREATE_UIO_DEV_NUM:
+                       internal_config.create_uio_dev = 1;
+                       break;
+
                default:
-                       if (isprint(opt)) {
+                       if (opt < OPT_LONG_MIN_NUM && isprint(opt)) {
                                RTE_LOG(ERR, EAL, "Option %c is not supported "
                                        "on Linux\n", opt);
+                       } else if (opt >= OPT_LONG_MIN_NUM &&
+                                  opt < OPT_LONG_MAX_NUM) {
+                               RTE_LOG(ERR, EAL, "Option %s is not supported "
+                                       "on Linux\n",
+                                       eal_long_options[option_index].name);
                        } else {
                                RTE_LOG(ERR, EAL, "Option %d is not supported "
                                        "on Linux\n", opt);
@@ -643,70 +651,25 @@ eal_parse_args(int argc, char **argv)
                }
        }
 
-       /* sanity checks */
-       if (!coremask_ok) {
-               RTE_LOG(ERR, EAL, "coremask not specified\n");
-               eal_usage(prgname);
-               return -1;
-       }
-       if (internal_config.process_type == RTE_PROC_AUTO){
-               internal_config.process_type = eal_proc_type_detect();
-       }
-       if (internal_config.process_type == RTE_PROC_INVALID){
-               RTE_LOG(ERR, EAL, "Invalid process type specified\n");
-               eal_usage(prgname);
-               return -1;
-       }
-       if (internal_config.process_type == RTE_PROC_PRIMARY &&
-                       internal_config.force_nchannel == 0) {
-               RTE_LOG(ERR, EAL, "Number of memory channels (-n) not specified\n");
-               eal_usage(prgname);
+       if (eal_adjust_config(&internal_config) != 0)
                return -1;
-       }
-       if (index(internal_config.hugefile_prefix,'%') != NULL){
-               RTE_LOG(ERR, EAL, "Invalid char, '%%', in '"OPT_FILE_PREFIX"' option\n");
-               eal_usage(prgname);
-               return -1;
-       }
-       if (internal_config.memory > 0 && internal_config.force_sockets == 1) {
-               RTE_LOG(ERR, EAL, "Options -m and --socket-mem cannot be specified "
-                               "at the same time\n");
-               eal_usage(prgname);
-               return -1;
-       }
-       /* --no-huge doesn't make sense with either -m or --socket-mem */
-       if (internal_config.no_hugetlbfs &&
-                       (internal_config.memory > 0 ||
-                                       internal_config.force_sockets == 1)) {
-               RTE_LOG(ERR, EAL, "Options -m or --socket-mem cannot be specified "
-                               "together with --no-huge!\n");
+
+       /* sanity checks */
+       if (eal_check_common_options(&internal_config) != 0) {
                eal_usage(prgname);
                return -1;
        }
+
        /* --xen-dom0 doesn't make sense with --socket-mem */
        if (internal_config.xen_dom0_support && internal_config.force_sockets == 1) {
-               RTE_LOG(ERR, EAL, "Options --socket-mem cannot be specified "
-                                       "together with --xen_dom0!\n");
-               eal_usage(prgname);
-               return -1;
-       }
-
-       if (rte_eal_devargs_type_count(RTE_DEVTYPE_WHITELISTED_PCI) != 0 &&
-               rte_eal_devargs_type_count(RTE_DEVTYPE_BLACKLISTED_PCI) != 0) {
-               RTE_LOG(ERR, EAL, "Error: blacklist [-b] and whitelist "
-                       "[-w] options cannot be used at the same time\n");
+               RTE_LOG(ERR, EAL, "Options --"OPT_SOCKET_MEM" cannot be specified "
+                       "together with --"OPT_XEN_DOM0"\n");
                eal_usage(prgname);
                return -1;
        }
 
        if (optind >= 0)
                argv[optind-1] = prgname;
-
-       /* if no memory amounts were requested, this will result in 0 and
-        * will be overriden later, right after eal_hugepage_info_init() */
-       for (i = 0; i < RTE_MAX_NUMA_NODES; i++)
-               internal_config.memory += internal_config.socket_mem[i];
-
        ret = optind-1;
        optind = 0; /* reset getopt lib */
        return ret;
@@ -747,11 +710,19 @@ rte_eal_mcfg_complete(void)
 
 /*
  * Request iopl privilege for all RPL, returns 0 on success
+ * iopl() call is mostly for the i386 architecture. For other architectures,
+ * return -1 to indicate IO privilege can't be changed in this way.
  */
-static int
+int
 rte_eal_iopl_init(void)
 {
-       return iopl(HIGHEST_RPL);
+#if defined(RTE_ARCH_X86_64) || defined(RTE_ARCH_I686)
+       if (iopl(3) != 0)
+               return -1;
+       return 0;
+#else
+       return -1;
+#endif
 }
 
 /* Launch threads, called at application init(). */
@@ -763,6 +734,7 @@ rte_eal_init(int argc, char **argv)
        static rte_atomic32_t run_once = RTE_ATOMIC32_INIT(0);
        struct shared_driver *solib = NULL;
        const char *logid;
+       char cpuset[RTE_CPU_AFFINITY_STR_LEN];
 
        if (!rte_atomic32_test_and_set(&run_once))
                return -1;
@@ -775,6 +747,11 @@ rte_eal_init(int argc, char **argv)
        if (rte_eal_log_early_init() < 0)
                rte_panic("Cannot init early logs\n");
 
+       eal_log_level_parse(argc, argv);
+
+       /* set log level as early as possible */
+       rte_set_log_level(internal_config.log_level);
+
        if (rte_eal_cpu_init() < 0)
                rte_panic("Cannot detect lcores\n");
 
@@ -782,9 +759,6 @@ rte_eal_init(int argc, char **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 &&
                        internal_config.xen_dom0_support == 0 &&
@@ -813,9 +787,6 @@ rte_eal_init(int argc, char **argv)
 
        rte_config_init();
 
-       if (rte_eal_iopl_init() == 0)
-               rte_config.flags |= EAL_FLG_HIGH_IOPL;
-
        if (rte_eal_pci_init() < 0)
                rte_panic("Cannot init PCI\n");
 
@@ -858,7 +829,7 @@ rte_eal_init(int argc, char **argv)
        rte_eal_mcfg_complete();
 
        TAILQ_FOREACH(solib, &solib_list, next) {
-               RTE_LOG(INFO, EAL, "open shared lib %s\n", solib->name);
+               RTE_LOG(DEBUG, EAL, "open shared lib %s\n", solib->name);
                solib->lib_handle = dlopen(solib->name, RTLD_NOW);
                if (solib->lib_handle == NULL)
                        RTE_LOG(WARNING, EAL, "%s\n", dlerror());
@@ -866,10 +837,13 @@ rte_eal_init(int argc, char **argv)
 
        eal_thread_init_master(rte_config.master_lcore);
 
-       RTE_LOG(DEBUG, EAL, "Master core %u is ready (tid=%x)\n",
-               rte_config.master_lcore, (int)thread_id);
+       ret = eal_thread_dump_affinity(cpuset, RTE_CPU_AFFINITY_STR_LEN);
 
-       if (rte_eal_dev_init(PMD_INIT_PRE_PCI_PROBE) < 0)
+       RTE_LOG(DEBUG, EAL, "Master lcore %u is ready (tid=%x;cpuset=[%s%s])\n",
+               rte_config.master_lcore, (int)thread_id, cpuset,
+               ret == 0 ? "" : "...");
+
+       if (rte_eal_dev_init() < 0)
                rte_panic("Cannot init pmd devices\n");
 
        RTE_LCORE_FOREACH_SLAVE(i) {
@@ -901,11 +875,7 @@ rte_eal_init(int argc, char **argv)
 
        /* Probe & Initialize PCI devices */
        if (rte_eal_pci_probe())
-                       rte_panic("Cannot probe PCI\n");
-
-       /* Initialize any outstanding devices */
-       if (rte_eal_dev_init(PMD_INIT_POST_PCI_PROBE) < 0)
-               rte_panic("Cannot init pmd devices\n");
+               rte_panic("Cannot probe PCI\n");
 
        return fctret;
 }
@@ -914,16 +884,44 @@ rte_eal_init(int argc, char **argv)
 enum rte_lcore_role_t
 rte_eal_lcore_role(unsigned lcore_id)
 {
-       return (rte_config.lcore_role[lcore_id]);
+       return rte_config.lcore_role[lcore_id];
 }
 
 enum rte_proc_type_t
 rte_eal_process_type(void)
 {
-       return (rte_config.process_type);
+       return rte_config.process_type;
 }
 
 int rte_eal_has_hugepages(void)
 {
        return ! internal_config.no_hugetlbfs;
 }
+
+int
+rte_eal_check_module(const char *module_name)
+{
+       char mod_name[30]; /* Any module names can be longer than 30 bytes? */
+       int ret = 0;
+       int n;
+
+       if (NULL == module_name)
+               return -1;
+
+       FILE *fd = fopen("/proc/modules", "r");
+       if (NULL == fd) {
+               RTE_LOG(ERR, EAL, "Open /proc/modules failed!"
+                       " error %i (%s)\n", errno, strerror(errno));
+               return -1;
+       }
+       while (!feof(fd)) {
+               n = fscanf(fd, "%29s %*[^\n]", mod_name);
+               if ((n == 1) && !strcmp(mod_name, module_name)) {
+                       ret = 1;
+                       break;
+               }
+       }
+       fclose(fd);
+
+       return ret;
+}