1 /* SPDX-License-Identifier: BSD-3-Clause 2 * Copyright (c) Intel Corporation. 3 * All rights reserved. 4 * Copyright (c) 2021 NVIDIA CORPORATION & AFFILIATES. All rights reserved. 5 */ 6 7 #include "bdev_malloc.h" 8 #include "spdk/rpc.h" 9 #include "spdk/util.h" 10 #include "spdk/uuid.h" 11 #include "spdk/string.h" 12 #include "spdk/log.h" 13 14 struct rpc_construct_malloc { 15 char *name; 16 char *uuid; 17 uint64_t num_blocks; 18 uint32_t block_size; 19 uint32_t optimal_io_boundary; 20 }; 21 22 static void 23 free_rpc_construct_malloc(struct rpc_construct_malloc *r) 24 { 25 free(r->name); 26 free(r->uuid); 27 } 28 29 static const struct spdk_json_object_decoder rpc_construct_malloc_decoders[] = { 30 {"name", offsetof(struct rpc_construct_malloc, name), spdk_json_decode_string, true}, 31 {"uuid", offsetof(struct rpc_construct_malloc, uuid), spdk_json_decode_string, true}, 32 {"num_blocks", offsetof(struct rpc_construct_malloc, num_blocks), spdk_json_decode_uint64}, 33 {"block_size", offsetof(struct rpc_construct_malloc, block_size), spdk_json_decode_uint32}, 34 {"optimal_io_boundary", offsetof(struct rpc_construct_malloc, optimal_io_boundary), spdk_json_decode_uint32, true}, 35 }; 36 37 static void 38 rpc_bdev_malloc_create(struct spdk_jsonrpc_request *request, 39 const struct spdk_json_val *params) 40 { 41 struct rpc_construct_malloc req = {NULL}; 42 struct spdk_json_write_ctx *w; 43 struct spdk_uuid *uuid = NULL; 44 struct spdk_uuid decoded_uuid; 45 struct spdk_bdev *bdev; 46 int rc = 0; 47 48 if (spdk_json_decode_object(params, rpc_construct_malloc_decoders, 49 SPDK_COUNTOF(rpc_construct_malloc_decoders), 50 &req)) { 51 SPDK_DEBUGLOG(bdev_malloc, "spdk_json_decode_object failed\n"); 52 spdk_jsonrpc_send_error_response(request, SPDK_JSONRPC_ERROR_INTERNAL_ERROR, 53 "spdk_json_decode_object failed"); 54 goto cleanup; 55 } 56 57 if (req.num_blocks == 0) { 58 spdk_jsonrpc_send_error_response(request, -EINVAL, 59 "Disk num_blocks must be greater than 0"); 60 goto cleanup; 61 } 62 63 if (req.uuid) { 64 if (spdk_uuid_parse(&decoded_uuid, req.uuid)) { 65 spdk_jsonrpc_send_error_response(request, -EINVAL, 66 "Failed to parse bdev UUID"); 67 goto cleanup; 68 } 69 uuid = &decoded_uuid; 70 } 71 72 rc = create_malloc_disk(&bdev, req.name, uuid, req.num_blocks, req.block_size, 73 req.optimal_io_boundary); 74 if (rc) { 75 spdk_jsonrpc_send_error_response(request, rc, spdk_strerror(-rc)); 76 goto cleanup; 77 } 78 79 free_rpc_construct_malloc(&req); 80 81 w = spdk_jsonrpc_begin_result(request); 82 spdk_json_write_string(w, spdk_bdev_get_name(bdev)); 83 spdk_jsonrpc_end_result(request, w); 84 return; 85 86 cleanup: 87 free_rpc_construct_malloc(&req); 88 } 89 SPDK_RPC_REGISTER("bdev_malloc_create", rpc_bdev_malloc_create, SPDK_RPC_RUNTIME) 90 91 struct rpc_delete_malloc { 92 char *name; 93 }; 94 95 static void 96 free_rpc_delete_malloc(struct rpc_delete_malloc *r) 97 { 98 free(r->name); 99 } 100 101 static const struct spdk_json_object_decoder rpc_delete_malloc_decoders[] = { 102 {"name", offsetof(struct rpc_delete_malloc, name), spdk_json_decode_string}, 103 }; 104 105 static void 106 rpc_bdev_malloc_delete_cb(void *cb_arg, int bdeverrno) 107 { 108 struct spdk_jsonrpc_request *request = cb_arg; 109 110 if (bdeverrno == 0) { 111 spdk_jsonrpc_send_bool_response(request, true); 112 } else { 113 spdk_jsonrpc_send_error_response(request, bdeverrno, spdk_strerror(-bdeverrno)); 114 } 115 } 116 117 static void 118 rpc_bdev_malloc_delete(struct spdk_jsonrpc_request *request, 119 const struct spdk_json_val *params) 120 { 121 struct rpc_delete_malloc req = {NULL}; 122 123 if (spdk_json_decode_object(params, rpc_delete_malloc_decoders, 124 SPDK_COUNTOF(rpc_delete_malloc_decoders), 125 &req)) { 126 SPDK_DEBUGLOG(bdev_malloc, "spdk_json_decode_object failed\n"); 127 spdk_jsonrpc_send_error_response(request, SPDK_JSONRPC_ERROR_INTERNAL_ERROR, 128 "spdk_json_decode_object failed"); 129 goto cleanup; 130 } 131 132 delete_malloc_disk(req.name, rpc_bdev_malloc_delete_cb, request); 133 134 cleanup: 135 free_rpc_delete_malloc(&req); 136 } 137 SPDK_RPC_REGISTER("bdev_malloc_delete", rpc_bdev_malloc_delete, SPDK_RPC_RUNTIME) 138