Imported Upstream version 17.05

[deb_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 35e3117..05f0c1f 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>
@@ -64,6 +65,7 @@
 #include <rte_string_fns.h>
 #include <rte_cpuflags.h>
 #include <rte_interrupts.h>
+#include <rte_bus.h>
 #include <rte_pci.h>
 #include <rte_dev.h>
 #include <rte_devargs.h>
@@ -193,7 +195,7 @@ rte_eal_config_create(void)
                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;
+       rte_config.mem_config = rte_mem_cfg_addr;
 }
 
 /* attach to an existing shared memory config */
@@ -218,7 +220,7 @@ rte_eal_config_attach(void)
        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;
+       rte_config.mem_config = rte_mem_cfg_addr;
 }
 
 /* Detect if we are a primary or a secondary process */
@@ -321,8 +323,6 @@ eal_log_level_parse(int argc, char **argv)
        optind = 1;
        optreset = 1;
 
-       eal_reset_internal_config(&internal_config);
-
        while ((opt = getopt_long(argc, argvopt, eal_short_options,
                                  eal_long_options, &option_index)) != EOF) {
 
@@ -486,6 +486,12 @@ 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)
@@ -497,29 +503,47 @@ 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();
 
-       eal_log_level_parse(argc, argv);
+       eal_reset_internal_config(&internal_config);
 
        /* set log level as early as possible */
-       rte_set_log_level(internal_config.log_level);
+       eal_log_level_parse(argc, argv);
 
-       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)
@@ -543,31 +567,45 @@ 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_memzone_init() < 0)
-               rte_panic("Cannot init memzone\n");
+       if (rte_eal_memory_init() < 0) {
+               rte_eal_init_alert("Cannot init memory\n");
+               rte_errno = ENOMEM;
+               return -1;
+       }
 
-       if (rte_eal_tailqs_init() < 0)
-               rte_panic("Cannot init tail queues for objects\n");
+       if (rte_eal_memzone_init() < 0) {
+               rte_eal_init_alert("Cannot init memzone\n");
+               rte_errno = ENODEV;
+               return -1;
+       }
 
-       if (rte_eal_alarm_init() < 0)
-               rte_panic("Cannot init interrupt-handling thread\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_intr_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_timer_init() < 0)
-               rte_panic("Cannot init HPET or TSC timers\n");
+       if (rte_eal_intr_init() < 0) {
+               rte_eal_init_alert("Cannot init interrupt-handling thread\n");
+               return -1;
+       }
 
-       if (rte_eal_pci_init() < 0)
-               rte_panic("Cannot init PCI\n");
+       if (rte_eal_timer_init() < 0) {
+               rte_eal_init_alert("Cannot init HPET or TSC timers\n");
+               rte_errno = ENOTSUP;
+               return -1;
+       }
 
        eal_check_mem_on_local_socket();
 
        if (eal_plugins_init() < 0)
-               rte_panic("Cannot init plugins\n");
+               rte_eal_init_alert("Cannot init plugins\n");
 
        eal_thread_init_master(rte_config.master_lcore);
 
@@ -577,8 +615,11 @@ rte_eal_init(int argc, char **argv)
                rte_config.master_lcore, thread_id, cpuset,
                ret == 0 ? "" : "...");
 
-       if (rte_eal_dev_init() < 0)
-               rte_panic("Cannot init pmd devices\n");
+       if (rte_bus_scan()) {
+               rte_eal_init_alert("Cannot scan the buses for devices\n");
+               rte_errno = ENODEV;
+               return -1;
+       }
 
        RTE_LCORE_FOREACH_SLAVE(i) {
 
@@ -612,9 +653,12 @@ rte_eal_init(int argc, char **argv)
        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");
+       /* Probe all the buses and devices/drivers on them */
+       if (rte_bus_probe()) {
+               rte_eal_init_alert("Cannot probe devices\n");
+               rte_errno = ENOTSUP;
+               return -1;
+       }
 
        rte_eal_mcfg_complete();