Line data Source code
1 : /* SPDX-License-Identifier: BSD-3-Clause
2 : * Copyright (C) 2019 Intel Corporation.
3 : * All rights reserved.
4 : */
5 :
6 : #include "bdev_uring.h"
7 : #include "spdk/rpc.h"
8 : #include "spdk/util.h"
9 : #include "spdk/string.h"
10 : #include "spdk/log.h"
11 :
12 : /* Structure to hold the parameters for this RPC method. */
13 : struct rpc_create_uring {
14 : char *name;
15 : char *filename;
16 : uint32_t block_size;
17 : };
18 :
19 : /* Free the allocated memory resource after the RPC handling. */
20 : static void
21 0 : free_rpc_create_uring(struct rpc_create_uring *r)
22 : {
23 0 : free(r->name);
24 0 : free(r->filename);
25 0 : }
26 :
27 : /* Structure to decode the input parameters for this RPC method. */
28 : static const struct spdk_json_object_decoder rpc_create_uring_decoders[] = {
29 : {"name", offsetof(struct rpc_create_uring, name), spdk_json_decode_string},
30 : {"filename", offsetof(struct rpc_create_uring, filename), spdk_json_decode_string},
31 : {"block_size", offsetof(struct rpc_create_uring, block_size), spdk_json_decode_uint32, true},
32 : };
33 :
34 : /* Decode the parameters for this RPC method and properly create the uring
35 : * device. Error status returned in the failed cases.
36 : */
37 : static void
38 0 : rpc_bdev_uring_create(struct spdk_jsonrpc_request *request,
39 : const struct spdk_json_val *params)
40 : {
41 0 : struct rpc_create_uring req = {};
42 0 : struct spdk_json_write_ctx *w;
43 0 : struct spdk_bdev *bdev;
44 :
45 0 : if (spdk_json_decode_object(params, rpc_create_uring_decoders,
46 : SPDK_COUNTOF(rpc_create_uring_decoders),
47 : &req)) {
48 0 : SPDK_ERRLOG("spdk_json_decode_object failed\n");
49 0 : spdk_jsonrpc_send_error_response(request, SPDK_JSONRPC_ERROR_INTERNAL_ERROR,
50 : "spdk_json_decode_object failed");
51 0 : goto cleanup;
52 : }
53 :
54 0 : bdev = create_uring_bdev(req.name, req.filename, req.block_size);
55 0 : if (!bdev) {
56 0 : SPDK_ERRLOG("Unable to create URING bdev from file %s\n", req.filename);
57 0 : spdk_jsonrpc_send_error_response(request, SPDK_JSONRPC_ERROR_INTERNAL_ERROR,
58 : "Unable to create URING bdev.");
59 0 : goto cleanup;
60 : }
61 :
62 0 : w = spdk_jsonrpc_begin_result(request);
63 0 : spdk_json_write_string(w, req.name);
64 0 : spdk_jsonrpc_end_result(request, w);
65 :
66 : cleanup:
67 0 : free_rpc_create_uring(&req);
68 0 : }
69 0 : SPDK_RPC_REGISTER("bdev_uring_create", rpc_bdev_uring_create, SPDK_RPC_RUNTIME)
70 :
71 : struct rpc_delete_uring {
72 : char *name;
73 : };
74 :
75 : static void
76 0 : free_rpc_delete_uring(struct rpc_delete_uring *req)
77 : {
78 0 : free(req->name);
79 0 : }
80 :
81 : static const struct spdk_json_object_decoder rpc_delete_uring_decoders[] = {
82 : {"name", offsetof(struct rpc_delete_uring, name), spdk_json_decode_string},
83 : };
84 :
85 : static void
86 0 : _rpc_bdev_uring_delete_cb(void *cb_arg, int bdeverrno)
87 : {
88 0 : struct spdk_jsonrpc_request *request = cb_arg;
89 :
90 0 : if (bdeverrno == 0) {
91 0 : spdk_jsonrpc_send_bool_response(request, true);
92 0 : } else {
93 0 : spdk_jsonrpc_send_error_response(request, bdeverrno, spdk_strerror(-bdeverrno));
94 : }
95 :
96 0 : }
97 :
98 : static void
99 0 : rpc_bdev_uring_delete(struct spdk_jsonrpc_request *request,
100 : const struct spdk_json_val *params)
101 : {
102 0 : struct rpc_delete_uring req = {NULL};
103 :
104 0 : if (spdk_json_decode_object(params, rpc_delete_uring_decoders,
105 : SPDK_COUNTOF(rpc_delete_uring_decoders),
106 : &req)) {
107 0 : spdk_jsonrpc_send_error_response(request, SPDK_JSONRPC_ERROR_INTERNAL_ERROR,
108 : "spdk_json_decode_object failed");
109 0 : goto cleanup;
110 : }
111 :
112 0 : delete_uring_bdev(req.name, _rpc_bdev_uring_delete_cb, request);
113 :
114 : cleanup:
115 0 : free_rpc_delete_uring(&req);
116 0 : }
117 0 : SPDK_RPC_REGISTER("bdev_uring_delete", rpc_bdev_uring_delete, SPDK_RPC_RUNTIME)
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