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 free_rpc_construct_null(struct null_bdev_opts *req) 16 { 17 free(req->name); 18 } 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 rpc_bdev_null_create(struct spdk_jsonrpc_request *request, 34 const struct spdk_json_val *params) 35 { 36 struct null_bdev_opts req = {}; 37 struct spdk_json_write_ctx *w; 38 struct spdk_bdev *bdev; 39 int rc = 0; 40 41 if (spdk_json_decode_object(params, rpc_construct_null_decoders, 42 SPDK_COUNTOF(rpc_construct_null_decoders), 43 &req)) { 44 SPDK_DEBUGLOG(bdev_null, "spdk_json_decode_object failed\n"); 45 spdk_jsonrpc_send_error_response(request, SPDK_JSONRPC_ERROR_INTERNAL_ERROR, 46 "spdk_json_decode_object failed"); 47 goto cleanup; 48 } 49 50 rc = bdev_null_create(&bdev, &req); 51 if (rc) { 52 spdk_jsonrpc_send_error_response(request, rc, spdk_strerror(-rc)); 53 goto cleanup; 54 } 55 56 w = spdk_jsonrpc_begin_result(request); 57 spdk_json_write_string(w, bdev->name); 58 spdk_jsonrpc_end_result(request, w); 59 free_rpc_construct_null(&req); 60 return; 61 62 cleanup: 63 free_rpc_construct_null(&req); 64 } 65 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 free_rpc_delete_null(struct rpc_delete_null *req) 73 { 74 free(req->name); 75 } 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 rpc_bdev_null_delete_cb(void *cb_arg, int bdeverrno) 83 { 84 struct spdk_jsonrpc_request *request = cb_arg; 85 86 if (bdeverrno == 0) { 87 spdk_jsonrpc_send_bool_response(request, true); 88 } else { 89 spdk_jsonrpc_send_error_response(request, bdeverrno, spdk_strerror(-bdeverrno)); 90 } 91 } 92 93 static void 94 rpc_bdev_null_delete(struct spdk_jsonrpc_request *request, 95 const struct spdk_json_val *params) 96 { 97 struct rpc_delete_null req = {NULL}; 98 99 if (spdk_json_decode_object(params, rpc_delete_null_decoders, 100 SPDK_COUNTOF(rpc_delete_null_decoders), 101 &req)) { 102 spdk_jsonrpc_send_error_response(request, SPDK_JSONRPC_ERROR_INTERNAL_ERROR, 103 "spdk_json_decode_object failed"); 104 goto cleanup; 105 } 106 107 bdev_null_delete(req.name, rpc_bdev_null_delete_cb, request); 108 109 free_rpc_delete_null(&req); 110 111 return; 112 113 cleanup: 114 free_rpc_delete_null(&req); 115 } 116 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 free_rpc_bdev_null_resize(struct rpc_bdev_null_resize *req) 130 { 131 free(req->name); 132 } 133 134 static void 135 spdk_rpc_bdev_null_resize(struct spdk_jsonrpc_request *request, 136 const struct spdk_json_val *params) 137 { 138 struct rpc_bdev_null_resize req = {}; 139 int rc; 140 141 if (spdk_json_decode_object(params, rpc_bdev_null_resize_decoders, 142 SPDK_COUNTOF(rpc_bdev_null_resize_decoders), 143 &req)) { 144 spdk_jsonrpc_send_error_response(request, SPDK_JSONRPC_ERROR_INTERNAL_ERROR, 145 "spdk_json_decode_object failed"); 146 goto cleanup; 147 } 148 149 rc = bdev_null_resize(req.name, req.new_size); 150 if (rc) { 151 spdk_jsonrpc_send_error_response(request, rc, spdk_strerror(-rc)); 152 goto cleanup; 153 } 154 155 spdk_jsonrpc_send_bool_response(request, true); 156 cleanup: 157 free_rpc_bdev_null_resize(&req); 158 } 159 SPDK_RPC_REGISTER("bdev_null_resize", spdk_rpc_bdev_null_resize, SPDK_RPC_RUNTIME) 160