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/string.h" 36 #include "spdk/util.h" 37 #include "spdk/env.h" 38 #include "spdk/log.h" 39 40 #include "spdk_internal/init.h" 41 42 #include "subsystem.h" 43 44 static void 45 rpc_framework_get_subsystems(struct spdk_jsonrpc_request *request, 46 const struct spdk_json_val *params) 47 { 48 struct spdk_json_write_ctx *w; 49 struct spdk_subsystem *subsystem; 50 struct spdk_subsystem_depend *deps; 51 52 if (params) { 53 spdk_jsonrpc_send_error_response(request, SPDK_JSONRPC_ERROR_INVALID_PARAMS, 54 "'framework_get_subsystems' requires no arguments"); 55 return; 56 } 57 58 w = spdk_jsonrpc_begin_result(request); 59 spdk_json_write_array_begin(w); 60 subsystem = subsystem_get_first(); 61 while (subsystem != NULL) { 62 spdk_json_write_object_begin(w); 63 64 spdk_json_write_named_string(w, "subsystem", subsystem->name); 65 spdk_json_write_named_array_begin(w, "depends_on"); 66 deps = subsystem_get_first_depend(); 67 while (deps != NULL) { 68 if (strcmp(subsystem->name, deps->name) == 0) { 69 spdk_json_write_string(w, deps->depends_on); 70 } 71 deps = subsystem_get_next_depend(deps); 72 } 73 spdk_json_write_array_end(w); 74 spdk_json_write_object_end(w); 75 subsystem = subsystem_get_next(subsystem); 76 } 77 spdk_json_write_array_end(w); 78 spdk_jsonrpc_end_result(request, w); 79 } 80 81 SPDK_RPC_REGISTER("framework_get_subsystems", rpc_framework_get_subsystems, SPDK_RPC_RUNTIME) 82 SPDK_RPC_REGISTER_ALIAS_DEPRECATED(framework_get_subsystems, get_subsystems) 83 84 struct rpc_framework_get_config_ctx { 85 char *name; 86 }; 87 88 static const struct spdk_json_object_decoder rpc_framework_get_config_ctx[] = { 89 {"name", offsetof(struct rpc_framework_get_config_ctx, name), spdk_json_decode_string}, 90 }; 91 92 static void 93 rpc_framework_get_config(struct spdk_jsonrpc_request *request, 94 const struct spdk_json_val *params) 95 { 96 struct rpc_framework_get_config_ctx req = {}; 97 struct spdk_json_write_ctx *w; 98 struct spdk_subsystem *subsystem; 99 100 if (spdk_json_decode_object(params, rpc_framework_get_config_ctx, 101 SPDK_COUNTOF(rpc_framework_get_config_ctx), &req)) { 102 spdk_jsonrpc_send_error_response(request, SPDK_JSONRPC_ERROR_INVALID_PARAMS, "Invalid arguments"); 103 return; 104 } 105 106 subsystem = subsystem_find(req.name); 107 if (!subsystem) { 108 spdk_jsonrpc_send_error_response_fmt(request, SPDK_JSONRPC_ERROR_INVALID_PARAMS, 109 "Subsystem '%s' not found", req.name); 110 free(req.name); 111 return; 112 } 113 114 free(req.name); 115 116 w = spdk_jsonrpc_begin_result(request); 117 subsystem_config_json(w, subsystem); 118 spdk_jsonrpc_end_result(request, w); 119 } 120 121 SPDK_RPC_REGISTER("framework_get_config", rpc_framework_get_config, SPDK_RPC_RUNTIME) 122 SPDK_RPC_REGISTER_ALIAS_DEPRECATED(framework_get_config, get_subsystem_config) 123 124 static void 125 dump_pci_device(void *ctx, struct spdk_pci_device *dev) 126 { 127 struct spdk_json_write_ctx *w = ctx; 128 struct spdk_pci_addr addr; 129 char config[4096], bdf[14]; 130 int rc; 131 132 addr = spdk_pci_device_get_addr(dev); 133 spdk_pci_addr_fmt(bdf, sizeof(bdf), &addr); 134 135 rc = spdk_pci_device_cfg_read(dev, config, sizeof(config), 0); 136 if (rc != 0) { 137 SPDK_ERRLOG("Failed to read config space of device: %s\n", bdf); 138 return; 139 } 140 141 spdk_json_write_object_begin(w); 142 spdk_json_write_named_string(w, "address", bdf); 143 144 /* Don't write the extended config space if it's all zeroes */ 145 if (spdk_mem_all_zero(&config[256], sizeof(config) - 256)) { 146 spdk_json_write_named_bytearray(w, "config_space", config, 256); 147 } else { 148 spdk_json_write_named_bytearray(w, "config_space", config, sizeof(config)); 149 } 150 151 spdk_json_write_object_end(w); 152 } 153 154 static void 155 rpc_framework_get_pci_devices(struct spdk_jsonrpc_request *request, 156 const struct spdk_json_val *params) 157 { 158 struct spdk_json_write_ctx *w; 159 160 if (params != NULL) { 161 spdk_jsonrpc_send_error_response(request, SPDK_JSONRPC_ERROR_INVALID_PARAMS, 162 "framework_get_pci_devices doesn't accept any parameters.\n"); 163 return; 164 } 165 166 w = spdk_jsonrpc_begin_result(request); 167 168 spdk_json_write_array_begin(w); 169 spdk_pci_for_each_device(w, dump_pci_device); 170 spdk_json_write_array_end(w); 171 172 spdk_jsonrpc_end_result(request, w); 173 } 174 SPDK_RPC_REGISTER("framework_get_pci_devices", rpc_framework_get_pci_devices, SPDK_RPC_RUNTIME) 175