eal: deprecate log functions
[dpdk.git] / lib / librte_eal / common / eal_common_options.c
index e40f65b..32df2ef 100644 (file)
@@ -40,6 +40,9 @@
 #include <errno.h>
 #include <getopt.h>
 #include <dlfcn.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <dirent.h>
 
 #include <rte_eal.h>
 #include <rte_log.h>
@@ -109,8 +112,21 @@ struct shared_driver {
 static struct shared_driver_list solib_list =
 TAILQ_HEAD_INITIALIZER(solib_list);
 
+/* Default path of external loadable drivers */
+static const char *default_solib_dir = RTE_EAL_PMD_PATH;
+
+/*
+ * Stringified version of solib path used by dpdk-pmdinfo.py
+ * Note: PLEASE DO NOT ALTER THIS without making a corresponding
+ * change to usertools/dpdk-pmdinfo.py
+ */
+static const char dpdk_solib_path[] __attribute__((used)) =
+"DPDK_PLUGIN_PATH=" RTE_EAL_PMD_PATH;
+
+
 static int master_lcore_parsed;
 static int mem_parsed;
+static int core_parsed;
 
 void
 eal_reset_internal_config(struct internal_config *internal_cfg)
@@ -133,7 +149,11 @@ eal_reset_internal_config(struct internal_config *internal_cfg)
 
        internal_cfg->syslog_facility = LOG_DAEMON;
        /* default value from build option */
+#if RTE_LOG_LEVEL >= RTE_LOG_DEBUG
+       internal_cfg->log_level = RTE_LOG_INFO;
+#else
        internal_cfg->log_level = RTE_LOG_LEVEL;
+#endif
 
        internal_cfg->xen_dom0_support = 0;
 
@@ -167,18 +187,69 @@ eal_plugin_add(const char *path)
        return 0;
 }
 
+static int
+eal_plugindir_init(const char *path)
+{
+       DIR *d = NULL;
+       struct dirent *dent = NULL;
+       char sopath[PATH_MAX];
+
+       if (path == NULL || *path == '\0')
+               return 0;
+
+       d = opendir(path);
+       if (d == NULL) {
+               RTE_LOG(ERR, EAL, "failed to open directory %s: %s\n",
+                       path, strerror(errno));
+               return -1;
+       }
+
+       while ((dent = readdir(d)) != NULL) {
+               struct stat sb;
+
+               snprintf(sopath, PATH_MAX-1, "%s/%s", path, dent->d_name);
+               sopath[PATH_MAX-1] = 0;
+
+               if (!(stat(sopath, &sb) == 0 && S_ISREG(sb.st_mode)))
+                       continue;
+
+               if (eal_plugin_add(sopath) == -1)
+                       break;
+       }
+
+       closedir(d);
+       /* XXX this ignores failures from readdir() itself */
+       return (dent == NULL) ? 0 : -1;
+}
+
 int
 eal_plugins_init(void)
 {
        struct shared_driver *solib = NULL;
 
+       if (*default_solib_dir != '\0')
+               eal_plugin_add(default_solib_dir);
+
        TAILQ_FOREACH(solib, &solib_list, next) {
-               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(ERR, EAL, "%s\n", dlerror());
-                       return -1;
+               struct stat sb;
+
+               if (stat(solib->name, &sb) == 0 && S_ISDIR(sb.st_mode)) {
+                       if (eal_plugindir_init(solib->name) == -1) {
+                               RTE_LOG(ERR, EAL,
+                                       "Cannot init plugin directory %s\n",
+                                       solib->name);
+                               return -1;
+                       }
+               } else {
+                       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(ERR, EAL, "%s\n", dlerror());
+                               return -1;
+                       }
                }
+
        }
        return 0;
 }
@@ -460,6 +531,13 @@ eal_parse_set(const char *input, uint16_t set[], unsigned num)
                str = end + 1;
        } while (*end != '\0' && *end != ')');
 
+       /*
+        * to avoid failure that tail blank makes end character check fail
+        * in eal_parse_lcores( )
+        */
+       while (isblank(*str))
+               str++;
+
        return str - input;
 }
 
@@ -508,13 +586,12 @@ eal_parse_lcores(const char *lcores)
        struct rte_config *cfg = rte_eal_get_configuration();
        static uint16_t set[RTE_MAX_LCORE];
        unsigned idx = 0;
-       int i;
        unsigned count = 0;
        const char *lcore_start = NULL;
        const char *end = NULL;
        int offset;
        rte_cpuset_t cpuset;
-       int lflags = 0;
+       int lflags;
        int ret = -1;
 
        if (lcores == NULL)
@@ -523,9 +600,6 @@ eal_parse_lcores(const char *lcores)
        /* Remove all blank characters ahead and after */
        while (isblank(*lcores))
                lcores++;
-       i = strlen(lcores);
-       while ((i > 0) && isblank(lcores[i - 1]))
-               i--;
 
        CPU_ZERO(&cpuset);
 
@@ -543,6 +617,8 @@ eal_parse_lcores(const char *lcores)
                if (*lcores == '\0')
                        goto err;
 
+               lflags = 0;
+
                /* record lcore_set start point */
                lcore_start = lcores;
 
@@ -663,25 +739,53 @@ eal_parse_syslog(const char *facility, struct internal_config *conf)
 }
 
 static int
-eal_parse_log_level(const char *level, uint32_t *log_level)
+eal_parse_log_level(const char *arg, struct internal_config *conf)
 {
-       char *end;
+       char *end, *str, *type, *level;
        unsigned long tmp;
 
+       str = strdup(arg);
+       if (str == NULL)
+               return -1;
+
+       if (strchr(str, ',') == NULL) {
+               type = NULL;
+               level = str;
+       } else {
+               type = strsep(&str, ",");
+               level = strsep(&str, ",");
+       }
+
        errno = 0;
        tmp = strtoul(level, &end, 0);
 
        /* check for errors */
        if ((errno != 0) || (level[0] == '\0') ||
-           end == NULL || (*end != '\0'))
-               return -1;
+                   end == NULL || (*end != '\0'))
+               goto fail;
 
        /* log_level is a uint32_t */
        if (tmp >= UINT32_MAX)
-               return -1;
+               goto fail;
+
+       printf("set log level %s,%lu\n",
+               type, tmp);
+
+       if (type == NULL) {
+               conf->log_level = tmp;
+               rte_log_set_global_level(tmp);
+       } else if (rte_log_set_level_regexp(type, tmp) < 0) {
+               printf("cannot set log level %s,%lu\n",
+                       type, tmp);
+               goto fail;
+       }
 
-       *log_level = tmp;
+       free(str);
        return 0;
+
+fail:
+       free(str);
+       return -1;
 }
 
 static enum rte_proc_type_t
@@ -722,6 +826,7 @@ eal_parse_common_option(int opt, const char *optarg,
                        RTE_LOG(ERR, EAL, "invalid coremask\n");
                        return -1;
                }
+               core_parsed = 1;
                break;
        /* corelist */
        case 'l':
@@ -729,6 +834,7 @@ eal_parse_common_option(int opt, const char *optarg,
                        RTE_LOG(ERR, EAL, "invalid core list\n");
                        return -1;
                }
+               core_parsed = 1;
                break;
        /* size of memory */
        case 'm':
@@ -740,8 +846,7 @@ eal_parse_common_option(int opt, const char *optarg,
        /* force number of channels */
        case 'n':
                conf->force_nchannel = atoi(optarg);
-               if (conf->force_nchannel == 0 ||
-                   conf->force_nchannel > 4) {
+               if (conf->force_nchannel == 0) {
                        RTE_LOG(ERR, EAL, "invalid channel number\n");
                        return -1;
                }
@@ -821,15 +926,12 @@ eal_parse_common_option(int opt, const char *optarg,
                break;
 
        case OPT_LOG_LEVEL_NUM: {
-               uint32_t log;
-
-               if (eal_parse_log_level(optarg, &log) < 0) {
+               if (eal_parse_log_level(optarg, conf) < 0) {
                        RTE_LOG(ERR, EAL,
                                "invalid parameters for --"
                                OPT_LOG_LEVEL "\n");
                        return -1;
                }
-               conf->log_level = log;
                break;
        }
        case OPT_LCORES_NUM:
@@ -838,6 +940,7 @@ eal_parse_common_option(int opt, const char *optarg,
                                OPT_LCORES "\n");
                        return -1;
                }
+               core_parsed = 1;
                break;
 
        /* don't know what to do, leave this to caller */
@@ -849,12 +952,38 @@ eal_parse_common_option(int opt, const char *optarg,
        return 0;
 }
 
+static void
+eal_auto_detect_cores(struct rte_config *cfg)
+{
+       unsigned int lcore_id;
+       unsigned int removed = 0;
+       rte_cpuset_t affinity_set;
+       pthread_t tid = pthread_self();
+
+       if (pthread_getaffinity_np(tid, sizeof(rte_cpuset_t),
+                               &affinity_set) < 0)
+               CPU_ZERO(&affinity_set);
+
+       for (lcore_id = 0; lcore_id < RTE_MAX_LCORE; lcore_id++) {
+               if (cfg->lcore_role[lcore_id] == ROLE_RTE &&
+                   !CPU_ISSET(lcore_id, &affinity_set)) {
+                       cfg->lcore_role[lcore_id] = ROLE_OFF;
+                       removed++;
+               }
+       }
+
+       cfg->lcore_count -= removed;
+}
+
 int
 eal_adjust_config(struct internal_config *internal_cfg)
 {
        int i;
        struct rte_config *cfg = rte_eal_get_configuration();
 
+       if (!core_parsed)
+               eal_auto_detect_cores(cfg);
+
        if (internal_config.process_type == RTE_PROC_AUTO)
                internal_config.process_type = eal_proc_type_detect();
 
@@ -947,12 +1076,15 @@ eal_common_usage(void)
               "                      [NOTE: PCI whitelist cannot be used with -b option]\n"
               "  --"OPT_VDEV"              Add a virtual device.\n"
               "                      The argument format is <driver><id>[,key=val,...]\n"
-              "                      (ex: --vdev=eth_pcap0,iface=eth2).\n"
-              "  -d LIB.so           Add driver (can be used multiple times)\n"
+              "                      (ex: --vdev=net_pcap0,iface=eth2).\n"
+              "  -d LIB.so|DIR       Add a driver or driver directory\n"
+              "                      (can be used multiple times)\n"
               "  --"OPT_VMWARE_TSC_MAP"    Use VMware TSC map instead of native RDTSC\n"
               "  --"OPT_PROC_TYPE"         Type of this process (primary|secondary|auto)\n"
               "  --"OPT_SYSLOG"            Set syslog facility\n"
-              "  --"OPT_LOG_LEVEL"         Set default log level\n"
+              "  --"OPT_LOG_LEVEL"=<int>   Set global log level\n"
+              "  --"OPT_LOG_LEVEL"=<type-regexp>,<int>\n"
+              "                      Set specific log level\n"
               "  -v                  Display version information on startup\n"
               "  -h, --help          This help\n"
               "\nEAL options for DEBUG use only:\n"