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/stdinc.h" 35 36 #include "spdk/env.h" 37 #include "spdk/event.h" 38 39 static char g_path[256]; 40 41 static void 42 usage(char *executable_name) 43 { 44 printf("%s [options]\n", executable_name); 45 printf("options:\n"); 46 printf(" -c config config file [required]\n"); 47 printf(" -i shared memory ID\n"); 48 printf(" -m mask core mask for DPDK\n"); 49 printf(" -n channel number of memory channels used for DPDK\n"); 50 printf(" -p core master (primary) core for DPDK\n"); 51 printf(" -s size memory size in MB for DPDK\n"); 52 printf(" -H show this usage\n"); 53 } 54 55 static void 56 bdev_svc_start(void *arg1, void *arg2) 57 { 58 int fd; 59 int shm_id = (intptr_t)arg1; 60 61 spdk_unaffinitize_thread(); 62 63 snprintf(g_path, sizeof(g_path), "/var/run/spdk_bdev%d", shm_id); 64 fd = open(g_path, O_CREAT | O_EXCL | O_RDWR, S_IFREG); 65 if (fd < 0) { 66 fprintf(stderr, "could not create sentinel file %s\n", g_path); 67 exit(1); 68 } 69 close(fd); 70 } 71 72 static void 73 bdev_svc_shutdown(void) 74 { 75 unlink(g_path); 76 spdk_app_stop(0); 77 } 78 79 int 80 main(int argc, char **argv) 81 { 82 int ch, rc; 83 struct spdk_app_opts opts = {}; 84 85 /* default value in opts structure */ 86 spdk_app_opts_init(&opts); 87 88 opts.name = "bdev_svc"; 89 90 while ((ch = getopt(argc, argv, "c:i:m:n:p:s:H")) != -1) { 91 switch (ch) { 92 case 'c': 93 opts.config_file = optarg; 94 break; 95 case 'i': 96 opts.shm_id = atoi(optarg); 97 break; 98 case 'm': 99 opts.reactor_mask = optarg; 100 break; 101 case 'n': 102 opts.mem_channel = atoi(optarg); 103 break; 104 case 'p': 105 opts.master_core = atoi(optarg); 106 break; 107 case 's': 108 opts.mem_size = atoi(optarg); 109 break; 110 case 'H': 111 default: 112 usage(argv[0]); 113 exit(EXIT_SUCCESS); 114 } 115 } 116 117 if (!opts.config_file) { 118 fprintf(stderr, "Configuration file is required.\n"); 119 usage(argv[0]); 120 exit(1); 121 } 122 123 opts.shutdown_cb = bdev_svc_shutdown; 124 opts.max_delay_us = 1000 * 1000; 125 126 spdk_app_start(&opts, bdev_svc_start, (void *)(intptr_t)opts.shm_id, NULL); 127 128 rc = spdk_app_fini(); 129 130 return rc; 131 } 132