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 83 struct rpc_framework_get_config_ctx { 84 char *name; 85 }; 86 87 static const struct spdk_json_object_decoder rpc_framework_get_config_ctx[] = { 88 {"name", offsetof(struct rpc_framework_get_config_ctx, name), spdk_json_decode_string}, 89 }; 90 91 static void 92 rpc_framework_get_config(struct spdk_jsonrpc_request *request, 93 const struct spdk_json_val *params) 94 { 95 struct rpc_framework_get_config_ctx req = {}; 96 struct spdk_json_write_ctx *w; 97 struct spdk_subsystem *subsystem; 98 99 if (spdk_json_decode_object(params, rpc_framework_get_config_ctx, 100 SPDK_COUNTOF(rpc_framework_get_config_ctx), &req)) { 101 spdk_jsonrpc_send_error_response(request, SPDK_JSONRPC_ERROR_INVALID_PARAMS, "Invalid arguments"); 102 return; 103 } 104 105 subsystem = subsystem_find(req.name); 106 if (!subsystem) { 107 spdk_jsonrpc_send_error_response_fmt(request, SPDK_JSONRPC_ERROR_INVALID_PARAMS, 108 "Subsystem '%s' not found", req.name); 109 free(req.name); 110 return; 111 } 112 113 free(req.name); 114 115 w = spdk_jsonrpc_begin_result(request); 116 subsystem_config_json(w, subsystem); 117 spdk_jsonrpc_end_result(request, w); 118 } 119 120 SPDK_RPC_REGISTER("framework_get_config", rpc_framework_get_config, SPDK_RPC_RUNTIME) 121 122 static void 123 dump_pci_device(void *ctx, struct spdk_pci_device *dev) 124 { 125 struct spdk_json_write_ctx *w = ctx; 126 struct spdk_pci_addr addr; 127 char config[4096], bdf[14]; 128 int rc; 129 130 addr = spdk_pci_device_get_addr(dev); 131 spdk_pci_addr_fmt(bdf, sizeof(bdf), &addr); 132 133 rc = spdk_pci_device_cfg_read(dev, config, sizeof(config), 0); 134 if (rc != 0) { 135 SPDK_ERRLOG("Failed to read config space of device: %s\n", bdf); 136 return; 137 } 138 139 spdk_json_write_object_begin(w); 140 spdk_json_write_named_string(w, "address", bdf); 141 142 /* Don't write the extended config space if it's all zeroes */ 143 if (spdk_mem_all_zero(&config[256], sizeof(config) - 256)) { 144 spdk_json_write_named_bytearray(w, "config_space", config, 256); 145 } else { 146 spdk_json_write_named_bytearray(w, "config_space", config, sizeof(config)); 147 } 148 149 spdk_json_write_object_end(w); 150 } 151 152 static void 153 rpc_framework_get_pci_devices(struct spdk_jsonrpc_request *request, 154 const struct spdk_json_val *params) 155 { 156 struct spdk_json_write_ctx *w; 157 158 if (params != NULL) { 159 spdk_jsonrpc_send_error_response(request, SPDK_JSONRPC_ERROR_INVALID_PARAMS, 160 "framework_get_pci_devices doesn't accept any parameters.\n"); 161 return; 162 } 163 164 w = spdk_jsonrpc_begin_result(request); 165 166 spdk_json_write_array_begin(w); 167 spdk_pci_for_each_device(w, dump_pci_device); 168 spdk_json_write_array_end(w); 169 170 spdk_jsonrpc_end_result(request, w); 171 } 172 SPDK_RPC_REGISTER("framework_get_pci_devices", rpc_framework_get_pci_devices, SPDK_RPC_RUNTIME) 173