1 /*- 2 * BSD LICENSE 3 * 4 * Copyright (c) Intel Corporation. All rights reserved. 5 * Copyright (c) 2019 Mellanox Technologies LTD. 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/stdinc.h" 35 #include "spdk/rpc.h" 36 #include "spdk/env_dpdk.h" 37 #include "spdk/log.h" 38 39 static void 40 rpc_env_dpdk_get_mem_stats(struct spdk_jsonrpc_request *request, 41 const struct spdk_json_val *params) 42 { 43 FILE *file = NULL; 44 struct spdk_json_write_ctx *w; 45 char default_filename[] = "/tmp/spdk_mem_dump.txt"; 46 47 if (params != NULL) { 48 SPDK_ERRLOG("spdk_json_decode_object failed\n"); 49 spdk_jsonrpc_send_error_response(request, SPDK_JSONRPC_ERROR_INVALID_PARAMS, 50 "env_dpdk_get_mem_stats doesn't accept any parameters.\n"); 51 } 52 53 file = fopen(default_filename, "w"); 54 if (!file) { 55 spdk_jsonrpc_send_error_response(request, SPDK_JSONRPC_ERROR_INTERNAL_ERROR, 56 "Unable to open file for writing.\n"); 57 return; 58 } 59 60 spdk_env_dpdk_dump_mem_stats(file); 61 fclose(file); 62 w = spdk_jsonrpc_begin_result(request); 63 spdk_json_write_object_begin(w); 64 spdk_json_write_named_string(w, "filename", default_filename); 65 spdk_json_write_object_end(w); 66 spdk_jsonrpc_end_result(request, w); 67 } 68 SPDK_RPC_REGISTER("env_dpdk_get_mem_stats", rpc_env_dpdk_get_mem_stats, SPDK_RPC_RUNTIME) 69