1 files changed, 204 insertions, 0 deletions
diff --git a/src/spdk/module/bdev/null/bdev_null_rpc.c b/src/spdk/module/bdev/null/bdev_null_rpc.c
new file mode 100644
index 000000000..f3a433e75
--- /dev/null
+++ b/src/spdk/module/bdev/null/bdev_null_rpc.c
@@ -0,0 +1,204 @@
+/*-
+ *   BSD LICENSE
+ *
+ *   Copyright (c) Intel Corporation. All rights reserved.
+ *   Copyright (c) 2019 Mellanox Technologies LTD. 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/rpc.h"
+#include "spdk/util.h"
+#include "spdk/string.h"
+#include "spdk/bdev_module.h"
+#include "spdk_internal/log.h"
+
+#include "bdev_null.h"
+
+struct rpc_construct_null {
+	char *name;
+	char *uuid;
+	uint64_t num_blocks;
+	uint32_t block_size;
+	uint32_t md_size;
+	int32_t dif_type;
+	bool dif_is_head_of_md;
+};
+
+static void
+free_rpc_construct_null(struct rpc_construct_null *req)
+{
+	free(req->name);
+	free(req->uuid);
+}
+
+static const struct spdk_json_object_decoder rpc_construct_null_decoders[] = {
+	{"name", offsetof(struct rpc_construct_null, name), spdk_json_decode_string},
+	{"uuid", offsetof(struct rpc_construct_null, uuid), spdk_json_decode_string, true},
+	{"num_blocks", offsetof(struct rpc_construct_null, num_blocks), spdk_json_decode_uint64},
+	{"block_size", offsetof(struct rpc_construct_null, block_size), spdk_json_decode_uint32},
+	{"md_size", offsetof(struct rpc_construct_null, md_size), spdk_json_decode_uint32, true},
+	{"dif_type", offsetof(struct rpc_construct_null, dif_type), spdk_json_decode_int32, true},
+	{"dif_is_head_of_md", offsetof(struct rpc_construct_null, dif_is_head_of_md), spdk_json_decode_bool, true},
+};
+
+static void
+rpc_bdev_null_create(struct spdk_jsonrpc_request *request,
+		     const struct spdk_json_val *params)
+{
+	struct rpc_construct_null req = {};
+	struct spdk_json_write_ctx *w;
+	struct spdk_uuid *uuid = NULL;
+	struct spdk_uuid decoded_uuid;
+	struct spdk_bdev *bdev;
+	struct spdk_null_bdev_opts opts = {};
+	uint32_t data_block_size;
+	int rc = 0;
+
+	if (spdk_json_decode_object(params, rpc_construct_null_decoders,
+				    SPDK_COUNTOF(rpc_construct_null_decoders),
+				    &req)) {
+		SPDK_DEBUGLOG(SPDK_LOG_BDEV_NULL, "spdk_json_decode_object failed\n");
+		spdk_jsonrpc_send_error_response(request, SPDK_JSONRPC_ERROR_INTERNAL_ERROR,
+						 "spdk_json_decode_object failed");
+		goto cleanup;
+	}
+
+	if (req.block_size < req.md_size) {
+		spdk_jsonrpc_send_error_response_fmt(request, -EINVAL,
+						     "Interleaved metadata size can not be greater than block size");
+		goto cleanup;
+	}
+	data_block_size = req.block_size - req.md_size;
+	if (data_block_size % 512 != 0) {
+		spdk_jsonrpc_send_error_response_fmt(request, -EINVAL,
+						     "Data block size %u is not a multiple of 512", req.block_size);
+		goto cleanup;
+	}
+
+	if (req.num_blocks == 0) {
+		spdk_jsonrpc_send_error_response(request, -EINVAL,
+						 "Disk num_blocks must be greater than 0");
+		goto cleanup;
+	}
+
+	if (req.uuid) {
+		if (spdk_uuid_parse(&decoded_uuid, req.uuid)) {
+			spdk_jsonrpc_send_error_response(request, -EINVAL,
+							 "Failed to parse bdev UUID");
+			goto cleanup;
+		}
+		uuid = &decoded_uuid;
+	}
+
+	if (req.dif_type < SPDK_DIF_DISABLE || req.dif_type > SPDK_DIF_TYPE3) {
+		spdk_jsonrpc_send_error_response(request, -EINVAL, "Invalid protection information type");
+		goto cleanup;
+	}
+
+	opts.name = req.name;
+	opts.uuid = uuid;
+	opts.num_blocks = req.num_blocks;
+	opts.block_size = req.block_size;
+	opts.md_size = req.md_size;
+	opts.md_interleave = true;
+	opts.dif_type = req.dif_type;
+	opts.dif_is_head_of_md = req.dif_is_head_of_md;
+	rc = bdev_null_create(&bdev, &opts);
+	if (rc) {
+		spdk_jsonrpc_send_error_response(request, rc, spdk_strerror(-rc));
+		goto cleanup;
+	}
+
+	w = spdk_jsonrpc_begin_result(request);
+	spdk_json_write_string(w, bdev->name);
+	spdk_jsonrpc_end_result(request, w);
+	free_rpc_construct_null(&req);
+	return;
+
+cleanup:
+	free_rpc_construct_null(&req);
+}
+SPDK_RPC_REGISTER("bdev_null_create", rpc_bdev_null_create, SPDK_RPC_RUNTIME)
+SPDK_RPC_REGISTER_ALIAS_DEPRECATED(bdev_null_create, construct_null_bdev)
+
+struct rpc_delete_null {
+	char *name;
+};
+
+static void
+free_rpc_delete_null(struct rpc_delete_null *req)
+{
+	free(req->name);
+}
+
+static const struct spdk_json_object_decoder rpc_delete_null_decoders[] = {
+	{"name", offsetof(struct rpc_delete_null, name), spdk_json_decode_string},
+};
+
+static void
+rpc_bdev_null_delete_cb(void *cb_arg, int bdeverrno)
+{
+	struct spdk_jsonrpc_request *request = cb_arg;
+	struct spdk_json_write_ctx *w = spdk_jsonrpc_begin_result(request);
+
+	spdk_json_write_bool(w, bdeverrno == 0);
+	spdk_jsonrpc_end_result(request, w);
+}
+
+static void
+rpc_bdev_null_delete(struct spdk_jsonrpc_request *request,
+		     const struct spdk_json_val *params)
+{
+	struct rpc_delete_null req = {NULL};
+	struct spdk_bdev *bdev;
+
+	if (spdk_json_decode_object(params, rpc_delete_null_decoders,
+				    SPDK_COUNTOF(rpc_delete_null_decoders),
+				    &req)) {
+		spdk_jsonrpc_send_error_response(request, SPDK_JSONRPC_ERROR_INTERNAL_ERROR,
+						 "spdk_json_decode_object failed");
+		goto cleanup;
+	}
+
+	bdev = spdk_bdev_get_by_name(req.name);
+	if (bdev == NULL) {
+		spdk_jsonrpc_send_error_response(request, -ENODEV, spdk_strerror(ENODEV));
+		goto cleanup;
+	}
+
+	bdev_null_delete(bdev, rpc_bdev_null_delete_cb, request);
+
+	free_rpc_delete_null(&req);
+
+	return;
+
+cleanup:
+	free_rpc_delete_null(&req);
+}
+SPDK_RPC_REGISTER("bdev_null_delete", rpc_bdev_null_delete, SPDK_RPC_RUNTIME)
+SPDK_RPC_REGISTER_ALIAS_DEPRECATED(bdev_null_delete, delete_null_bdev)