Line data Source code
1 : /* SPDX-License-Identifier: BSD-3-Clause
2 : * Copyright (C) 2017 Intel Corporation. All rights reserved.
3 : * Copyright (c) 2019 Mellanox Technologies LTD. All rights reserved.
4 : */
5 :
6 : #include "spdk/rpc.h"
7 : #include "spdk/util.h"
8 : #include "spdk/string.h"
9 : #include "spdk/bdev_module.h"
10 : #include "spdk/log.h"
11 :
12 : #include "bdev_null.h"
13 :
14 : static void
15 0 : free_rpc_construct_null(struct null_bdev_opts *req)
16 : {
17 0 : free(req->name);
18 0 : }
19 :
20 : static const struct spdk_json_object_decoder rpc_construct_null_decoders[] = {
21 : {"name", offsetof(struct null_bdev_opts, name), spdk_json_decode_string},
22 : {"uuid", offsetof(struct null_bdev_opts, uuid), spdk_json_decode_uuid, true},
23 : {"num_blocks", offsetof(struct null_bdev_opts, num_blocks), spdk_json_decode_uint64},
24 : {"block_size", offsetof(struct null_bdev_opts, block_size), spdk_json_decode_uint32},
25 : {"physical_block_size", offsetof(struct null_bdev_opts, physical_block_size), spdk_json_decode_uint32, true},
26 : {"md_size", offsetof(struct null_bdev_opts, md_size), spdk_json_decode_uint32, true},
27 : {"dif_type", offsetof(struct null_bdev_opts, dif_type), spdk_json_decode_int32, true},
28 : {"dif_is_head_of_md", offsetof(struct null_bdev_opts, dif_is_head_of_md), spdk_json_decode_bool, true},
29 : {"dif_pi_format", offsetof(struct null_bdev_opts, dif_pi_format), spdk_json_decode_uint32, true},
30 : };
31 :
32 : static void
33 0 : rpc_bdev_null_create(struct spdk_jsonrpc_request *request,
34 : const struct spdk_json_val *params)
35 : {
36 0 : struct null_bdev_opts req = {};
37 : struct spdk_json_write_ctx *w;
38 0 : struct spdk_bdev *bdev;
39 0 : int rc = 0;
40 :
41 0 : if (spdk_json_decode_object(params, rpc_construct_null_decoders,
42 : SPDK_COUNTOF(rpc_construct_null_decoders),
43 : &req)) {
44 0 : SPDK_DEBUGLOG(bdev_null, "spdk_json_decode_object failed\n");
45 0 : spdk_jsonrpc_send_error_response(request, SPDK_JSONRPC_ERROR_INTERNAL_ERROR,
46 : "spdk_json_decode_object failed");
47 0 : goto cleanup;
48 : }
49 :
50 0 : rc = bdev_null_create(&bdev, &req);
51 0 : if (rc) {
52 0 : spdk_jsonrpc_send_error_response(request, rc, spdk_strerror(-rc));
53 0 : goto cleanup;
54 : }
55 :
56 0 : w = spdk_jsonrpc_begin_result(request);
57 0 : spdk_json_write_string(w, bdev->name);
58 0 : spdk_jsonrpc_end_result(request, w);
59 0 : free_rpc_construct_null(&req);
60 0 : return;
61 :
62 0 : cleanup:
63 0 : free_rpc_construct_null(&req);
64 : }
65 0 : SPDK_RPC_REGISTER("bdev_null_create", rpc_bdev_null_create, SPDK_RPC_RUNTIME)
66 :
67 : struct rpc_delete_null {
68 : char *name;
69 : };
70 :
71 : static void
72 0 : free_rpc_delete_null(struct rpc_delete_null *req)
73 : {
74 0 : free(req->name);
75 0 : }
76 :
77 : static const struct spdk_json_object_decoder rpc_delete_null_decoders[] = {
78 : {"name", offsetof(struct rpc_delete_null, name), spdk_json_decode_string},
79 : };
80 :
81 : static void
82 0 : rpc_bdev_null_delete_cb(void *cb_arg, int bdeverrno)
83 : {
84 0 : struct spdk_jsonrpc_request *request = cb_arg;
85 :
86 0 : if (bdeverrno == 0) {
87 0 : spdk_jsonrpc_send_bool_response(request, true);
88 : } else {
89 0 : spdk_jsonrpc_send_error_response(request, bdeverrno, spdk_strerror(-bdeverrno));
90 : }
91 0 : }
92 :
93 : static void
94 0 : rpc_bdev_null_delete(struct spdk_jsonrpc_request *request,
95 : const struct spdk_json_val *params)
96 : {
97 0 : struct rpc_delete_null req = {NULL};
98 :
99 0 : if (spdk_json_decode_object(params, rpc_delete_null_decoders,
100 : SPDK_COUNTOF(rpc_delete_null_decoders),
101 : &req)) {
102 0 : spdk_jsonrpc_send_error_response(request, SPDK_JSONRPC_ERROR_INTERNAL_ERROR,
103 : "spdk_json_decode_object failed");
104 0 : goto cleanup;
105 : }
106 :
107 0 : bdev_null_delete(req.name, rpc_bdev_null_delete_cb, request);
108 :
109 0 : free_rpc_delete_null(&req);
110 :
111 0 : return;
112 :
113 0 : cleanup:
114 0 : free_rpc_delete_null(&req);
115 : }
116 0 : SPDK_RPC_REGISTER("bdev_null_delete", rpc_bdev_null_delete, SPDK_RPC_RUNTIME)
117 :
118 : struct rpc_bdev_null_resize {
119 : char *name;
120 : uint64_t new_size;
121 : };
122 :
123 : static const struct spdk_json_object_decoder rpc_bdev_null_resize_decoders[] = {
124 : {"name", offsetof(struct rpc_bdev_null_resize, name), spdk_json_decode_string},
125 : {"new_size", offsetof(struct rpc_bdev_null_resize, new_size), spdk_json_decode_uint64}
126 : };
127 :
128 : static void
129 0 : free_rpc_bdev_null_resize(struct rpc_bdev_null_resize *req)
130 : {
131 0 : free(req->name);
132 0 : }
133 :
134 : static void
135 0 : spdk_rpc_bdev_null_resize(struct spdk_jsonrpc_request *request,
136 : const struct spdk_json_val *params)
137 : {
138 0 : struct rpc_bdev_null_resize req = {};
139 : int rc;
140 :
141 0 : if (spdk_json_decode_object(params, rpc_bdev_null_resize_decoders,
142 : SPDK_COUNTOF(rpc_bdev_null_resize_decoders),
143 : &req)) {
144 0 : spdk_jsonrpc_send_error_response(request, SPDK_JSONRPC_ERROR_INTERNAL_ERROR,
145 : "spdk_json_decode_object failed");
146 0 : goto cleanup;
147 : }
148 :
149 0 : rc = bdev_null_resize(req.name, req.new_size);
150 0 : if (rc) {
151 0 : spdk_jsonrpc_send_error_response(request, rc, spdk_strerror(-rc));
152 0 : goto cleanup;
153 : }
154 :
155 0 : spdk_jsonrpc_send_bool_response(request, true);
156 0 : cleanup:
157 0 : free_rpc_bdev_null_resize(&req);
158 0 : }
159 0 : SPDK_RPC_REGISTER("bdev_null_resize", spdk_rpc_bdev_null_resize, SPDK_RPC_RUNTIME)
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