eal: move plugin loading from linuxapp to common

[dpdk.git] / lib / librte_eal / linuxapp / eal / eal.c

diff --git a/lib/librte_eal/linuxapp/eal/eal.c b/lib/librte_eal/linuxapp/eal/eal.c
index d70d8f8..06536f2 100644 (file)
--- a/lib/librte_eal/linuxapp/eal/eal.c
+++ b/lib/librte_eal/linuxapp/eal/eal.c
@@ -43,7 +43,6 @@
 #include <getopt.h>
 #include <sys/file.h>
 #include <fcntl.h>
-#include <dlfcn.h>
 #include <stddef.h>
 #include <errno.h>
 #include <limits.h>
@@ -90,20 +89,6 @@
 /* Allow the application to print its usage message too if set */
 static rte_usage_hook_t        rte_application_usage_hook = NULL;
 
-TAILQ_HEAD(shared_driver_list, shared_driver);
-
-/* Definition for shared object drivers. */
-struct shared_driver {
-       TAILQ_ENTRY(shared_driver) next;
-
-       char    name[PATH_MAX];
-       void*   lib_handle;
-};
-
-/* List of external loadable drivers */
-static struct shared_driver_list solib_list =
-TAILQ_HEAD_INITIALIZER(solib_list);
-
 /* early configuration structure, when memory config is not mmapped */
 static struct rte_mem_config early_mem_config;
 
@@ -350,7 +335,6 @@ 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_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"
@@ -505,8 +489,12 @@ 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;
+       char * const old_optarg = optarg;
 
        argvopt = argv;
+       optind = 1;
 
        eal_reset_internal_config(&internal_config);
 
@@ -527,7 +515,10 @@ eal_log_level_parse(int argc, char **argv)
                        break;
        }
 
-       optind = 0; /* reset getopt lib */
+       /* restore getopt lib */
+       optind = old_optind;
+       optopt = old_optopt;
+       optarg = old_optarg;
 }
 
 /* Parse the argument given in the command line of the application */
@@ -538,26 +529,29 @@ eal_parse_args(int argc, char **argv)
        char **argvopt;
        int option_index;
        char *prgname = argv[0];
-       struct shared_driver *solib;
+       const int old_optind = optind;
+       const int old_optopt = optopt;
+       char * const old_optarg = optarg;
 
        argvopt = argv;
+       optind = 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 == '?') {
                        eal_usage(prgname);
-                       return -1;
+                       ret = -1;
+                       goto out;
                }
 
                ret = eal_parse_common_option(opt, optarg, &internal_config);
                /* common parser is not happy */
                if (ret < 0) {
                        eal_usage(prgname);
-                       return -1;
+                       ret = -1;
+                       goto out;
                }
                /* common parser handled this option */
                if (ret == 0)
@@ -568,19 +562,6 @@ eal_parse_args(int argc, char **argv)
                        eal_usage(prgname);
                        exit(EXIT_SUCCESS);
 
-               /* force loading of external driver */
-               case 'd':
-                       solib = malloc(sizeof(*solib));
-                       if (solib == NULL) {
-                               RTE_LOG(ERR, EAL, "malloc(solib) failed\n");
-                               return -1;
-                       }
-                       memset(solib, 0, sizeof(*solib));
-                       strncpy(solib->name, optarg, PATH_MAX-1);
-                       solib->name[PATH_MAX-1] = 0;
-                       TAILQ_INSERT_TAIL(&solib_list, solib, next);
-                       break;
-
                /* long options */
                case OPT_XEN_DOM0_NUM:
 #ifdef RTE_LIBRTE_XEN_DOM0
@@ -589,7 +570,8 @@ eal_parse_args(int argc, char **argv)
                        RTE_LOG(ERR, EAL, "Can't support DPDK app "
                                "running on Dom0, please configure"
                                " RTE_LIBRTE_XEN_DOM0=y\n");
-                       return -1;
+                       ret = -1;
+                       goto out;
 #endif
                        break;
 
@@ -606,7 +588,8 @@ eal_parse_args(int argc, char **argv)
                                RTE_LOG(ERR, EAL, "invalid parameters for --"
                                                OPT_SOCKET_MEM "\n");
                                eal_usage(prgname);
-                               return -1;
+                               ret = -1;
+                               goto out;
                        }
                        break;
 
@@ -615,7 +598,8 @@ eal_parse_args(int argc, char **argv)
                                RTE_LOG(ERR, EAL, "invalid parameter for --"
                                                OPT_BASE_VIRTADDR "\n");
                                eal_usage(prgname);
-                               return -1;
+                               ret = -1;
+                               goto out;
                        }
                        break;
 
@@ -624,7 +608,8 @@ eal_parse_args(int argc, char **argv)
                                RTE_LOG(ERR, EAL, "invalid parameters for --"
                                                OPT_VFIO_INTR "\n");
                                eal_usage(prgname);
-                               return -1;
+                               ret = -1;
+                               goto out;
                        }
                        break;
 
@@ -646,17 +631,21 @@ eal_parse_args(int argc, char **argv)
                                        "on Linux\n", opt);
                        }
                        eal_usage(prgname);
-                       return -1;
+                       ret = -1;
+                       goto out;
                }
        }
 
-       if (eal_adjust_config(&internal_config) != 0)
-               return -1;
+       if (eal_adjust_config(&internal_config) != 0) {
+               ret = -1;
+               goto out;
+       }
 
        /* sanity checks */
        if (eal_check_common_options(&internal_config) != 0) {
                eal_usage(prgname);
-               return -1;
+               ret = -1;
+               goto out;
        }
 
        /* --xen-dom0 doesn't make sense with --socket-mem */
@@ -664,13 +653,20 @@ eal_parse_args(int argc, char **argv)
                RTE_LOG(ERR, EAL, "Options --"OPT_SOCKET_MEM" cannot be specified "
                        "together with --"OPT_XEN_DOM0"\n");
                eal_usage(prgname);
-               return -1;
+               ret = -1;
+               goto out;
        }
 
        if (optind >= 0)
                argv[optind-1] = prgname;
        ret = optind-1;
-       optind = 0; /* reset getopt lib */
+
+out:
+       /* restore getopt lib */
+       optind = old_optind;
+       optopt = old_optopt;
+       optarg = old_optarg;
+
        return ret;
 }
 
@@ -731,7 +727,6 @@ 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);
-       struct shared_driver *solib = NULL;
        const char *logid;
        char cpuset[RTE_CPU_AFFINITY_STR_LEN];
        char thread_name[RTE_MAX_THREAD_NAME_LEN];
@@ -825,12 +820,8 @@ rte_eal_init(int argc, char **argv)
 
        rte_eal_mcfg_complete();
 
-       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(WARNING, EAL, "%s\n", dlerror());
-       }
+       if (eal_plugins_init() < 0)
+               rte_panic("Cannot init plugins\n");
 
        eal_thread_init_master(rte_config.master_lcore);