1 /*- 2 * BSD LICENSE 3 * 4 * Copyright (c) Intel Corporation. 5 * All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 11 * * Redistributions of source code must retain the above copyright 12 * notice, this list of conditions and the following disclaimer. 13 * * Redistributions in binary form must reproduce the above copyright 14 * notice, this list of conditions and the following disclaimer in 15 * the documentation and/or other materials provided with the 16 * distribution. 17 * * Neither the name of Intel Corporation nor the names of its 18 * contributors may be used to endorse or promote products derived 19 * from this software without specific prior written permission. 20 * 21 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 22 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 23 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 24 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 25 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 26 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 27 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 28 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 29 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 30 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 31 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 32 */ 33 34 #include "spdk/rpc.h" 35 #include "spdk/util.h" 36 #include "spdk/string.h" 37 38 #include "vbdev_split.h" 39 #include "spdk_internal/log.h" 40 41 struct rpc_construct_split { 42 char *base_bdev; 43 uint32_t split_count; 44 uint64_t split_size_mb; 45 }; 46 47 static const struct spdk_json_object_decoder rpc_construct_split_decoders[] = { 48 {"base_bdev", offsetof(struct rpc_construct_split, base_bdev), spdk_json_decode_string}, 49 {"split_count", offsetof(struct rpc_construct_split, split_count), spdk_json_decode_uint32}, 50 {"split_size_mb", offsetof(struct rpc_construct_split, split_size_mb), spdk_json_decode_uint64, true}, 51 }; 52 53 static void 54 rpc_bdev_split_create(struct spdk_jsonrpc_request *request, 55 const struct spdk_json_val *params) 56 { 57 struct rpc_construct_split req = {}; 58 struct spdk_json_write_ctx *w; 59 struct spdk_bdev *base_bdev; 60 int rc; 61 62 if (spdk_json_decode_object(params, rpc_construct_split_decoders, 63 SPDK_COUNTOF(rpc_construct_split_decoders), 64 &req)) { 65 SPDK_ERRLOG("spdk_json_decode_object failed\n"); 66 spdk_jsonrpc_send_error_response(request, SPDK_JSONRPC_ERROR_INVALID_PARAMS, "Invalid parameters"); 67 goto out; 68 } 69 70 rc = create_vbdev_split(req.base_bdev, req.split_count, req.split_size_mb); 71 if (rc < 0) { 72 spdk_jsonrpc_send_error_response_fmt(request, SPDK_JSONRPC_ERROR_INVALID_PARAMS, 73 "Failed to create %"PRIu32" split bdevs from '%s': %s", 74 req.split_count, req.base_bdev, spdk_strerror(-rc)); 75 goto out; 76 } 77 78 w = spdk_jsonrpc_begin_result(request); 79 spdk_json_write_array_begin(w); 80 81 base_bdev = spdk_bdev_get_by_name(req.base_bdev); 82 if (base_bdev != NULL) { 83 struct spdk_bdev_part_base *split_base; 84 struct bdev_part_tailq *split_base_tailq; 85 struct spdk_bdev_part *split_part; 86 struct spdk_bdev *split_bdev; 87 88 split_base = vbdev_split_get_part_base(base_bdev); 89 90 assert(split_base != NULL); 91 92 split_base_tailq = spdk_bdev_part_base_get_tailq(split_base); 93 TAILQ_FOREACH(split_part, split_base_tailq, tailq) { 94 split_bdev = spdk_bdev_part_get_bdev(split_part); 95 spdk_json_write_string(w, spdk_bdev_get_name(split_bdev)); 96 } 97 } 98 99 spdk_json_write_array_end(w); 100 spdk_jsonrpc_end_result(request, w); 101 102 out: 103 free(req.base_bdev); 104 } 105 SPDK_RPC_REGISTER("bdev_split_create", rpc_bdev_split_create, SPDK_RPC_RUNTIME) 106 SPDK_RPC_REGISTER_ALIAS_DEPRECATED(bdev_split_create, construct_split_vbdev) 107 108 struct rpc_delete_split { 109 char *base_bdev; 110 }; 111 112 static const struct spdk_json_object_decoder rpc_delete_split_decoders[] = { 113 {"base_bdev", offsetof(struct rpc_delete_split, base_bdev), spdk_json_decode_string}, 114 }; 115 116 static void 117 rpc_bdev_split_delete(struct spdk_jsonrpc_request *request, 118 const struct spdk_json_val *params) 119 { 120 struct rpc_delete_split req = {}; 121 struct spdk_json_write_ctx *w; 122 int rc; 123 124 if (spdk_json_decode_object(params, rpc_delete_split_decoders, 125 SPDK_COUNTOF(rpc_delete_split_decoders), 126 &req)) { 127 SPDK_ERRLOG("spdk_json_decode_object failed\n"); 128 spdk_jsonrpc_send_error_response(request, SPDK_JSONRPC_ERROR_INVALID_PARAMS, "Invalid parameters"); 129 goto out; 130 } 131 132 rc = vbdev_split_destruct(req.base_bdev); 133 if (rc < 0) { 134 spdk_jsonrpc_send_error_response(request, SPDK_JSONRPC_ERROR_INVALID_PARAMS, spdk_strerror(-rc)); 135 goto out; 136 } 137 138 w = spdk_jsonrpc_begin_result(request); 139 spdk_json_write_bool(w, true); 140 spdk_jsonrpc_end_result(request, w); 141 out: 142 free(req.base_bdev); 143 } 144 SPDK_RPC_REGISTER("bdev_split_delete", rpc_bdev_split_delete, SPDK_RPC_RUNTIME) 145 SPDK_RPC_REGISTER_ALIAS_DEPRECATED(bdev_split_delete, destruct_split_vbdev) 146