1 files changed, 129 insertions, 0 deletions
diff --git a/src/spdk/lib/event/rpc/subsystem_rpc.c b/src/spdk/lib/event/rpc/subsystem_rpc.c
new file mode 100644
index 00000000..1b83990f
--- /dev/null
+++ b/src/spdk/lib/event/rpc/subsystem_rpc.c
@@ -0,0 +1,129 @@
+/*-
+ *   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_internal/event.h"
+#include "spdk/rpc.h"
+#include "spdk/string.h"
+#include "spdk/util.h"
+#include "spdk/env.h"
+
+static void
+spdk_rpc_get_subsystems(struct spdk_jsonrpc_request *request,
+			const struct spdk_json_val *params)
+{
+	struct spdk_json_write_ctx *w;
+	struct spdk_subsystem *subsystem;
+	struct spdk_subsystem_depend *deps;
+
+	if (params) {
+		spdk_jsonrpc_send_error_response(request, SPDK_JSONRPC_ERROR_INVALID_PARAMS,
+						 "'get_subsystems' requires no arguments");
+		return;
+	}
+
+	w = spdk_jsonrpc_begin_result(request);
+	if (w == NULL) {
+		return;
+	}
+
+	spdk_json_write_array_begin(w);
+	TAILQ_FOREACH(subsystem, &g_subsystems, tailq) {
+		spdk_json_write_object_begin(w);
+
+		spdk_json_write_named_string(w, "subsystem", subsystem->name);
+		spdk_json_write_named_array_begin(w, "depends_on");
+		TAILQ_FOREACH(deps, &g_subsystems_deps, tailq) {
+			if (strcmp(subsystem->name, deps->name) == 0) {
+				spdk_json_write_string(w, deps->depends_on);
+			}
+		}
+		spdk_json_write_array_end(w);
+
+		spdk_json_write_object_end(w);
+	}
+	spdk_json_write_array_end(w);
+	spdk_jsonrpc_end_result(request, w);
+}
+
+SPDK_RPC_REGISTER("get_subsystems", spdk_rpc_get_subsystems, SPDK_RPC_RUNTIME)
+
+struct rpc_get_subsystem_config {
+	char *name;
+};
+
+static const struct spdk_json_object_decoder rpc_get_subsystem_config[] = {
+	{"name", offsetof(struct rpc_get_subsystem_config, name), spdk_json_decode_string},
+};
+
+static void
+rpc_get_subsystem_config_done(void *arg1, void *arg2)
+{
+	struct spdk_jsonrpc_request *request = arg1;
+	struct spdk_json_write_ctx *w = arg2;
+
+	spdk_jsonrpc_end_result(request, w);
+}
+
+static void
+spdk_rpc_get_subsystem_config(struct spdk_jsonrpc_request *request,
+			      const struct spdk_json_val *params)
+{
+	struct rpc_get_subsystem_config req = {};
+	struct spdk_json_write_ctx *w;
+	struct spdk_subsystem *subsystem;
+	struct spdk_event *ev;
+
+	if (spdk_json_decode_object(params, rpc_get_subsystem_config,
+				    SPDK_COUNTOF(rpc_get_subsystem_config), &req)) {
+		spdk_jsonrpc_send_error_response(request, SPDK_JSONRPC_ERROR_INVALID_PARAMS, "Invalid arguments");
+		return;
+	}
+
+	subsystem = spdk_subsystem_find(&g_subsystems, req.name);
+	if (!subsystem) {
+		spdk_jsonrpc_send_error_response_fmt(request, SPDK_JSONRPC_ERROR_INVALID_PARAMS,
+						     "Subsystem '%s' not found", req.name);
+		free(req.name);
+		return;
+	}
+
+	free(req.name);
+
+	w = spdk_jsonrpc_begin_result(request);
+	if (w) {
+		ev = spdk_event_allocate(spdk_env_get_current_core(), rpc_get_subsystem_config_done, request, w);
+		spdk_subsystem_config_json(w, subsystem, ev);
+	}
+}
+
+SPDK_RPC_REGISTER("get_subsystem_config", spdk_rpc_get_subsystem_config, SPDK_RPC_RUNTIME)