Adding upstream version 18.2.2.upstream/18.2.2

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 124 insertions, 0 deletions

diff --git a/src/spdk/app/spdk_tgt/spdk_tgt.c b/src/spdk/app/spdk_tgt/spdk_tgt.c
new file mode 100644
index 000000000..03f3098cd
--- /dev/null
+++ b/src/spdk/app/spdk_tgt/spdk_tgt.c
@@ -0,0 +1,124 @@
+/*-
+ *   BSD LICENSE
+ *
+ *   Copyright (c) Intel Corporation.
+ *   All rights reserved.
+ *
+ *   Redistribution and use in source and binary forms, with or without
+ *   modification, are permitted provided that the following conditions
+ *   are met:
+ *
+ *     * Redistributions of source code must retain the above copyright
+ *       notice, this list of conditions and the following disclaimer.
+ *     * Redistributions in binary form must reproduce the above copyright
+ *       notice, this list of conditions and the following disclaimer in
+ *       the documentation and/or other materials provided with the
+ *       distribution.
+ *     * Neither the name of Intel Corporation nor the names of its
+ *       contributors may be used to endorse or promote products derived
+ *       from this software without specific prior written permission.
+ *
+ *   THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ *   "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ *   LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ *   A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ *   OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ *   SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ *   LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ *   DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ *   THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ *   (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ *   OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#include "spdk/stdinc.h"
+
+#include "spdk/config.h"
+#include "spdk/env.h"
+#include "spdk/event.h"
+#include "spdk/vhost.h"
+
+#ifdef SPDK_CONFIG_VHOST
+#define SPDK_VHOST_OPTS "S:"
+#else
+#define SPDK_VHOST_OPTS
+#endif
+
+static const char *g_pid_path = NULL;
+static const char g_spdk_tgt_get_opts_string[] = "f:" SPDK_VHOST_OPTS;
+
+static void
+spdk_tgt_usage(void)
+{
+	printf(" -f <file>                 pidfile save pid to file under given path\n");
+#ifdef SPDK_CONFIG_VHOST
+	printf(" -S <path>                 directory where to create vhost sockets (default: pwd)\n");
+#endif
+}
+
+static void
+spdk_tgt_save_pid(const char *pid_path)
+{
+	FILE *pid_file;
+
+	pid_file = fopen(pid_path, "w");
+	if (pid_file == NULL) {
+		fprintf(stderr, "Couldn't create pid file '%s': %s\n", pid_path, strerror(errno));
+		exit(EXIT_FAILURE);
+	}
+
+	fprintf(pid_file, "%d\n", getpid());
+	fclose(pid_file);
+}
+
+
+static int
+spdk_tgt_parse_arg(int ch, char *arg)
+{
+	switch (ch) {
+	case 'f':
+		g_pid_path = arg;
+		break;
+#ifdef SPDK_CONFIG_VHOST
+	case 'S':
+		spdk_vhost_set_socket_path(arg);
+		break;
+#endif
+	default:
+		return -EINVAL;
+	}
+	return 0;
+}
+
+static void
+spdk_tgt_started(void *arg1)
+{
+	if (g_pid_path) {
+		spdk_tgt_save_pid(g_pid_path);
+	}
+
+	if (getenv("MEMZONE_DUMP") != NULL) {
+		spdk_memzone_dump(stdout);
+		fflush(stdout);
+	}
+}
+
+int
+main(int argc, char **argv)
+{
+	struct spdk_app_opts opts = {};
+	int rc;
+
+	spdk_app_opts_init(&opts);
+	opts.name = "spdk_tgt";
+	if ((rc = spdk_app_parse_args(argc, argv, &opts, g_spdk_tgt_get_opts_string,
+				      NULL, spdk_tgt_parse_arg, spdk_tgt_usage)) !=
+	    SPDK_APP_PARSE_ARGS_SUCCESS) {
+		return rc;
+	}
+
+	rc = spdk_app_start(&opts, spdk_tgt_started, NULL);
+	spdk_app_fini();
+
+	return rc;
+}