eal: do not panic on a number of conditions

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

diff --git a/lib/librte_eal/bsdapp/eal/eal.c b/lib/librte_eal/bsdapp/eal/eal.c
index ee7c9de..c66cd33 100644 (file)
--- a/lib/librte_eal/bsdapp/eal/eal.c
+++ b/lib/librte_eal/bsdapp/eal/eal.c
@@ -56,6 +56,7 @@
 #include <rte_launch.h>
 #include <rte_eal.h>
 #include <rte_eal_memconfig.h>
+#include <rte_errno.h>
 #include <rte_per_lcore.h>
 #include <rte_lcore.h>
 #include <rte_log.h>
@@ -487,6 +488,12 @@ rte_eal_iopl_init(void)
        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)
@@ -498,10 +505,17 @@ rte_eal_init(int argc, char **argv)
        char thread_name[RTE_MAX_THREAD_NAME_LEN];
 
        /* checks if the machine is adequate */
-       rte_cpu_check_supported();
+       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))
+       if (!rte_atomic32_test_and_set(&run_once)) {
+               rte_eal_init_alert("already called initialization.");
+               rte_errno = EALREADY;
                return -1;
+       }
 
        thread_id = pthread_self();
 
@@ -510,17 +524,28 @@ rte_eal_init(int argc, char **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");
+       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)
-               exit(1);
+       if (fctret < 0) {
+               rte_eal_init_alert("Invalid 'command line' arguments.");
+               rte_errno = EINVAL;
+               rte_atomic32_clear(&run_once);
+               return -1;
+       }
 
        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");
+                       eal_hugepage_info_init() < 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)
@@ -544,17 +569,29 @@ rte_eal_init(int argc, char **argv)
 
        rte_config_init();
 
-       if (rte_eal_memory_init() < 0)
-               rte_panic("Cannot init memory\n");
+       if (rte_eal_memory_init() < 0) {
+               rte_eal_init_alert("Cannot init memory\n");
+               rte_errno = ENOMEM;
+               return -1;
+       }
 
-       if (rte_eal_memzone_init() < 0)
-               rte_panic("Cannot init memzone\n");
+       if (rte_eal_memzone_init() < 0) {
+               rte_eal_init_alert("Cannot init memzone\n");
+               rte_errno = ENODEV;
+               return -1;
+       }
 
-       if (rte_eal_tailqs_init() < 0)
-               rte_panic("Cannot init tail queues for objects\n");
+       if (rte_eal_tailqs_init() < 0) {
+               rte_eal_init_alert("Cannot init tail queues for objects\n");
+               rte_errno = EFAULT;
+               return -1;
+       }
 
-       if (rte_eal_alarm_init() < 0)
-               rte_panic("Cannot init interrupt-handling thread\n");
+       if (rte_eal_alarm_init() < 0) {
+               rte_eal_init_alert("Cannot init interrupt-handling thread\n");
+               /* rte_eal_alarm_init sets rte_errno on failure. */
+               return -1;
+       }
 
        if (rte_eal_intr_init() < 0)
                rte_panic("Cannot init interrupt-handling thread\n");