X-Git-Url: http://git.droids-corp.org/?a=blobdiff_plain;f=lib%2Flibrte_eal%2Flinuxapp%2Feal%2Feal.c;h=9c7d7620ed33304c6b1c4fe6a47e2901b447a77f;hb=7e9b25a738dc722c6db43c650311d9908f5bd15d;hp=d5b81a328d06a3a27a5a3d3d532fbb6e59646fb3;hpb=c711ccb30987037691f2564a053926a89d87985f;p=dpdk.git

diff --git a/lib/librte_eal/linuxapp/eal/eal.c b/lib/librte_eal/linuxapp/eal/eal.c
index d5b81a328d..9c7d7620ed 100644
--- a/lib/librte_eal/linuxapp/eal/eal.c
+++ b/lib/librte_eal/linuxapp/eal/eal.c
@@ -46,7 +46,6 @@
 #include <stddef.h>
 #include <errno.h>
 #include <limits.h>
-#include <errno.h>
 #include <sys/mman.h>
 #include <sys/queue.h>
 #include <sys/stat.h>
@@ -57,24 +56,26 @@
 #include <rte_common.h>
 #include <rte_debug.h>
 #include <rte_memory.h>
-#include <rte_memzone.h>
 #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_service_component.h>
 #include <rte_log.h>
 #include <rte_random.h>
 #include <rte_cycles.h>
 #include <rte_string_fns.h>
 #include <rte_cpuflags.h>
 #include <rte_interrupts.h>
-#include <rte_pci.h>
+#include <rte_bus.h>
+#include <rte_dev.h>
 #include <rte_devargs.h>
-#include <rte_common.h>
 #include <rte_version.h>
 #include <rte_atomic.h>
 #include <malloc_heap.h>
+#include <rte_vfio.h>
 
 #include "eal_private.h"
 #include "eal_thread.h"
@@ -119,6 +120,13 @@ struct internal_config internal_config;
 /* used by rte_rdtsc() */
 int rte_cycles_vmware_tsc_map;
 
+/* Return mbuf pool ops name */
+const char *
+rte_eal_mbuf_default_mempool_ops(void)
+{
+	return internal_config.mbuf_pool_ops_name;
+}
+
 /* Return a pointer to the configuration structure */
 struct rte_config *
 rte_eal_get_configuration(void)
@@ -126,6 +134,12 @@ rte_eal_get_configuration(void)
 	return &rte_config;
 }
 
+enum rte_iova_mode
+rte_eal_iova_mode(void)
+{
+	return rte_eal_get_configuration()->iova_mode;
+}
+
 /* parse a sysfs (or other) file containing one integer value */
 int
 eal_parse_sysfs_value(const char *filename, unsigned long *val)
@@ -209,7 +223,7 @@ 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;
 
 	/* store address of the config in the config itself so that secondary
 	 * processes could later map the config into this exact location */
@@ -238,7 +252,8 @@ rte_eal_config_attach(void)
 	mem_config = (struct rte_mem_config *) mmap(NULL, sizeof(*mem_config),
 			PROT_READ, MAP_SHARED, mem_cfg_fd, 0);
 	if (mem_config == MAP_FAILED)
-		rte_panic("Cannot mmap memory for rte_config\n");
+		rte_panic("Cannot mmap memory for rte_config! error %i (%s)\n",
+			  errno, strerror(errno));
 
 	rte_config.mem_config = mem_config;
 }
@@ -263,9 +278,17 @@ rte_eal_config_reattach(void)
 	mem_config = (struct rte_mem_config *) mmap(rte_mem_cfg_addr,
 			sizeof(*mem_config), PROT_READ | PROT_WRITE, MAP_SHARED,
 			mem_cfg_fd, 0);
+	if (mem_config == MAP_FAILED || mem_config != rte_mem_cfg_addr) {
+		if (mem_config != MAP_FAILED)
+			/* errno is stale, don't use */
+			rte_panic("Cannot mmap memory for rte_config at [%p], got [%p]"
+				  " - please use '--base-virtaddr' option\n",
+				  rte_mem_cfg_addr, mem_config);
+		else
+			rte_panic("Cannot mmap memory for rte_config! error %i (%s)\n",
+				  errno, strerror(errno));
+	}
 	close(mem_cfg_fd);
-	if (mem_config == MAP_FAILED || mem_config != rte_mem_cfg_addr)
-		rte_panic("Cannot mmap memory for rte_config\n");
 
 	rte_config.mem_config = mem_config;
 }
@@ -343,7 +366,6 @@ eal_usage(const char *prgname)
 	       "  --"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 ) {
@@ -480,8 +502,6 @@ eal_log_level_parse(int argc, char **argv)
 	argvopt = argv;
 	optind = 1;
 
-	eal_reset_internal_config(&internal_config);
-
 	while ((opt = getopt_long(argc, argvopt, eal_short_options,
 				  eal_long_options, &option_index)) != EOF) {
 
@@ -546,25 +566,12 @@ eal_parse_args(int argc, char **argv)
 			eal_usage(prgname);
 			exit(EXIT_SUCCESS);
 
-		/* long options */
-		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");
-			ret = -1;
-			goto out;
-#endif
-			break;
-
 		case OPT_HUGE_DIR_NUM:
-			internal_config.hugepage_dir = optarg;
+			internal_config.hugepage_dir = strdup(optarg);
 			break;
 
 		case OPT_FILE_PREFIX_NUM:
-			internal_config.hugefile_prefix = optarg;
+			internal_config.hugefile_prefix = strdup(optarg);
 			break;
 
 		case OPT_SOCKET_MEM_NUM:
@@ -601,6 +608,10 @@ eal_parse_args(int argc, char **argv)
 			internal_config.create_uio_dev = 1;
 			break;
 
+		case OPT_MBUF_POOL_OPS_NAME_NUM:
+			internal_config.mbuf_pool_ops_name = optarg;
+			break;
+
 		default:
 			if (opt < OPT_LONG_MIN_NUM && isprint(opt)) {
 				RTE_LOG(ERR, EAL, "Option %c is not supported "
@@ -632,15 +643,6 @@ eal_parse_args(int argc, char **argv)
 		goto out;
 	}
 
-	/* --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 --"OPT_SOCKET_MEM" cannot be specified "
-			"together with --"OPT_XEN_DOM0"\n");
-		eal_usage(prgname);
-		ret = -1;
-		goto out;
-	}
-
 	if (optind >= 0)
 		argv[optind-1] = prgname;
 	ret = optind-1;
@@ -707,10 +709,9 @@ static int rte_eal_vfio_setup(void)
 {
 	int vfio_enabled = 0;
 
-	if (!internal_config.no_pci) {
-		pci_vfio_enable();
-		vfio_enabled |= pci_vfio_is_enabled();
-	}
+	if (rte_vfio_enable("vfio"))
+		return -1;
+	vfio_enabled = rte_vfio_is_enabled("vfio");
 
 	if (vfio_enabled) {
 
@@ -729,6 +730,12 @@ static int rte_eal_vfio_setup(void)
 }
 #endif
 
+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)
@@ -740,34 +747,83 @@ rte_eal_init(int argc, char **argv)
 	char cpuset[RTE_CPU_AFFINITY_STR_LEN];
 	char thread_name[RTE_MAX_THREAD_NAME_LEN];
 
-	if (!rte_atomic32_test_and_set(&run_once))
+	/* checks if the machine is adequate */
+	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)) {
+		rte_eal_init_alert("already called initialization.");
+		rte_errno = EALREADY;
 		return -1;
+	}
 
 	logid = strrchr(argv[0], '/');
 	logid = strdup(logid ? logid + 1: argv[0]);
 
 	thread_id = pthread_self();
 
-	if (rte_eal_log_early_init() < 0)
-		rte_panic("Cannot init early logs\n");
-
-	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 (eal_plugins_init() < 0) {
+		rte_eal_init_alert("Cannot init plugins\n");
+		rte_errno = EINVAL;
+		rte_atomic32_clear(&run_once);
+		return -1;
+	}
+
+	if (eal_option_device_parse()) {
+		rte_errno = ENODEV;
+		rte_atomic32_clear(&run_once);
+		return -1;
+	}
+
+	if (rte_bus_scan()) {
+		rte_eal_init_alert("Cannot scan the buses for devices\n");
+		rte_errno = ENODEV;
+		rte_atomic32_clear(&run_once);
+		return -1;
+	}
+
+	/* autodetect the iova mapping mode (default is iova_pa) */
+	rte_eal_get_configuration()->iova_mode = rte_bus_get_iommu_class();
+
+	/* Workaround for KNI which requires physical address to work */
+	if (rte_eal_get_configuration()->iova_mode == RTE_IOVA_VA &&
+			rte_eal_check_module("rte_kni") == 1) {
+		rte_eal_get_configuration()->iova_mode = RTE_IOVA_PA;
+		RTE_LOG(WARNING, EAL,
+			"Some devices want IOVA as VA but PA will be used because.. "
+			"KNI module inserted\n");
+	}
 
 	if (internal_config.no_hugetlbfs == 0 &&
 			internal_config.process_type != RTE_PROC_SECONDARY &&
-			internal_config.xen_dom0_support == 0 &&
-			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)
@@ -789,53 +845,69 @@ rte_eal_init(int argc, char **argv)
 
 	rte_config_init();
 
-	if (rte_eal_pci_init() < 0)
-		rte_panic("Cannot init PCI\n");
+	if (rte_eal_log_init(logid, internal_config.syslog_facility) < 0) {
+		rte_eal_init_alert("Cannot init logging.");
+		rte_errno = ENOMEM;
+		rte_atomic32_clear(&run_once);
+		return -1;
+	}
 
 #ifdef VFIO_PRESENT
-	if (rte_eal_vfio_setup() < 0)
-		rte_panic("Cannot init VFIO\n");
+	if (rte_eal_vfio_setup() < 0) {
+		rte_eal_init_alert("Cannot init VFIO\n");
+		rte_errno = EAGAIN;
+		rte_atomic32_clear(&run_once);
+		return -1;
+	}
 #endif
 
-	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;
+	}
 
 	/* the directories are locked during eal_hugepage_info_init */
 	eal_hugedirs_unlock();
 
-	if (rte_eal_memzone_init() < 0)
-		rte_panic("Cannot init memzone\n");
-
-	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_log_init(logid, internal_config.syslog_facility) < 0)
-		rte_panic("Cannot init logs\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_timer_init() < 0)
-		rte_panic("Cannot init HPET or TSC timers\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");
-
 	eal_thread_init_master(rte_config.master_lcore);
 
-	ret = eal_thread_dump_affinity(cpuset, RTE_CPU_AFFINITY_STR_LEN);
+	ret = eal_thread_dump_affinity(cpuset, sizeof(cpuset));
 
 	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");
-
-	if (rte_eal_intr_init() < 0)
-		rte_panic("Cannot init interrupt-handling thread\n");
+	if (rte_eal_intr_init() < 0) {
+		rte_eal_init_alert("Cannot init interrupt-handling thread\n");
+		return -1;
+	}
 
 	RTE_LCORE_FOREACH_SLAVE(i) {
 
@@ -857,7 +929,7 @@ rte_eal_init(int argc, char **argv)
 			rte_panic("Cannot create thread\n");
 
 		/* Set thread_name for aid in debugging. */
-		snprintf(thread_name, RTE_MAX_THREAD_NAME_LEN,
+		snprintf(thread_name, sizeof(thread_name),
 			"lcore-slave-%d", i);
 		ret = rte_thread_setname(lcore_config[i].thread_id,
 						thread_name);
@@ -873,9 +945,29 @@ 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");
+	/* initialize services so vdevs register service during bus_probe. */
+	ret = rte_service_init();
+	if (ret) {
+		rte_eal_init_alert("rte_service_init() failed\n");
+		rte_errno = ENOEXEC;
+		return -1;
+	}
+
+	/* 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;
+	}
+
+	/* initialize default service/lcore mappings and start running. Ignore
+	 * -ENOTSUP, as it indicates no service coremask passed to EAL.
+	 */
+	ret = rte_service_start_with_defaults();
+	if (ret < 0 && ret != -ENOTSUP) {
+		rte_errno = ENOEXEC;
+		return -1;
+	}
 
 	rte_eal_mcfg_complete();
 
@@ -900,6 +992,22 @@ int rte_eal_has_hugepages(void)
 	return ! internal_config.no_hugetlbfs;
 }
 
+int rte_eal_has_pci(void)
+{
+	return !internal_config.no_pci;
+}
+
+int rte_eal_create_uio_dev(void)
+{
+	return internal_config.create_uio_dev;
+}
+
+enum rte_intr_mode
+rte_eal_vfio_intr_mode(void)
+{
+	return internal_config.vfio_intr_mode;
+}
+
 int
 rte_eal_check_module(const char *module_name)
 {