X-Git-Url: http://git.droids-corp.org/?a=blobdiff_plain;f=lib%2Flibrte_eal%2Flinuxapp%2Feal%2Feal.c;h=604806321c5e463d3edef2fc29438f950df0514b;hb=56236363b481e680f12dec97e48182a2cdbd3110;hp=21afa73b5cdc74c84429369bd830f0d456fbddf3;hpb=83a73c5fef669e54a137e63449efe06bf7449149;p=dpdk.git

diff --git a/lib/librte_eal/linuxapp/eal/eal.c b/lib/librte_eal/linuxapp/eal/eal.c
index 21afa73b5c..604806321c 100644
--- a/lib/librte_eal/linuxapp/eal/eal.c
+++ b/lib/librte_eal/linuxapp/eal/eal.c
@@ -92,6 +92,66 @@ struct internal_config internal_config;
 /* used by rte_rdtsc() */
 int rte_cycles_vmware_tsc_map;
 
+/* platform-specific runtime dir */
+static char runtime_dir[PATH_MAX];
+
+int
+eal_create_runtime_dir(void)
+{
+	const char *directory = default_config_dir;
+	const char *xdg_runtime_dir = getenv("XDG_RUNTIME_DIR");
+	const char *fallback = "/tmp";
+	char tmp[PATH_MAX];
+	int ret;
+
+	if (getuid() != 0) {
+		/* try XDG path first, fall back to /tmp */
+		if (xdg_runtime_dir != NULL)
+			directory = xdg_runtime_dir;
+		else
+			directory = fallback;
+	}
+	/* create DPDK subdirectory under runtime dir */
+	ret = snprintf(tmp, sizeof(tmp), "%s/dpdk", directory);
+	if (ret < 0 || ret == sizeof(tmp)) {
+		RTE_LOG(ERR, EAL, "Error creating DPDK runtime path name\n");
+		return -1;
+	}
+
+	/* create prefix-specific subdirectory under DPDK runtime dir */
+	ret = snprintf(runtime_dir, sizeof(runtime_dir), "%s/%s",
+			tmp, internal_config.hugefile_prefix);
+	if (ret < 0 || ret == sizeof(runtime_dir)) {
+		RTE_LOG(ERR, EAL, "Error creating prefix-specific runtime path name\n");
+		return -1;
+	}
+
+	/* create the path if it doesn't exist. no "mkdir -p" here, so do it
+	 * step by step.
+	 */
+	ret = mkdir(tmp, 0600);
+	if (ret < 0 && errno != EEXIST) {
+		RTE_LOG(ERR, EAL, "Error creating '%s': %s\n",
+			tmp, strerror(errno));
+		return -1;
+	}
+
+	ret = mkdir(runtime_dir, 0600);
+	if (ret < 0 && errno != EEXIST) {
+		RTE_LOG(ERR, EAL, "Error creating '%s': %s\n",
+			runtime_dir, strerror(errno));
+		return -1;
+	}
+
+	return 0;
+}
+
+const char *
+eal_get_runtime_dir(void)
+{
+	return runtime_dir;
+}
+
 /* Return user provided mbuf pool ops name */
 const char * __rte_experimental
 rte_eal_mbuf_user_pool_ops(void)
@@ -593,7 +653,8 @@ eal_parse_args(int argc, char **argv)
 			break;
 
 		case OPT_MBUF_POOL_OPS_NAME_NUM:
-			internal_config.user_mbuf_pool_ops_name = optarg;
+			internal_config.user_mbuf_pool_ops_name =
+			    strdup(optarg);
 			break;
 
 		default:
@@ -645,10 +706,7 @@ check_socket(const struct rte_memseg_list *msl, void *arg)
 {
 	int *socket_id = arg;
 
-	if (msl->socket_id == *socket_id && msl->memseg_arr.count != 0)
-		return 1;
-
-	return 0;
+	return *socket_id == msl->socket_id;
 }
 
 static void
@@ -743,6 +801,13 @@ rte_eal_init(int argc, char **argv)
 	/* set log level as early as possible */
 	eal_log_level_parse(argc, argv);
 
+	/* create runtime data directory */
+	if (eal_create_runtime_dir() < 0) {
+		rte_eal_init_alert("Cannot create runtime directory\n");
+		rte_errno = EACCES;
+		return -1;
+	}
+
 	if (rte_eal_cpu_init() < 0) {
 		rte_eal_init_alert("Cannot detect lcores.");
 		rte_errno = ENOTSUP;
@@ -770,6 +835,19 @@ rte_eal_init(int argc, char **argv)
 		return -1;
 	}
 
+	rte_config_init();
+
+	/* Put mp channel init before bus scan so that we can init the vdev
+	 * bus through mp channel in the secondary process before the bus scan.
+	 */
+	if (rte_mp_channel_init() < 0) {
+		rte_eal_init_alert("failed to init mp channel\n");
+		if (rte_eal_process_type() == RTE_PROC_PRIMARY) {
+			rte_errno = EFAULT;
+			return -1;
+		}
+	}
+
 	if (rte_bus_scan()) {
 		rte_eal_init_alert("Cannot scan the buses for devices\n");
 		rte_errno = ENODEV;
@@ -820,8 +898,6 @@ rte_eal_init(int argc, char **argv)
 
 	rte_srand(rte_rdtsc());
 
-	rte_config_init();
-
 	if (rte_eal_log_init(logid, internal_config.syslog_facility) < 0) {
 		rte_eal_init_alert("Cannot init logging.");
 		rte_errno = ENOMEM;
@@ -829,14 +905,6 @@ rte_eal_init(int argc, char **argv)
 		return -1;
 	}
 
-	if (rte_mp_channel_init() < 0) {
-		rte_eal_init_alert("failed to init mp channel\n");
-		if (rte_eal_process_type() == RTE_PROC_PRIMARY) {
-			rte_errno = EFAULT;
-			return -1;
-		}
-	}
-
 #ifdef VFIO_PRESENT
 	if (rte_eal_vfio_setup() < 0) {
 		rte_eal_init_alert("Cannot init VFIO\n");
@@ -892,7 +960,7 @@ rte_eal_init(int argc, char **argv)
 
 	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,
@@ -923,7 +991,7 @@ 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);