1 /*- 2 * BSD LICENSE 3 * 4 * Copyright(c) 2010-2014 Intel Corporation. All rights reserved. 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 #include <stdint.h> 34 #include <string.h> 35 #include <stdlib.h> 36 #include <stdarg.h> 37 #include <inttypes.h> 38 #include <stdio.h> 39 #include <termios.h> 40 #include <errno.h> 41 #include <sys/queue.h> 42 43 #include <rte_common.h> 44 #include <rte_memory.h> 45 #include <rte_memzone.h> 46 #include <rte_eal.h> 47 #include <rte_atomic.h> 48 #include <rte_branch_prediction.h> 49 #include <rte_launch.h> 50 #include <rte_log.h> 51 #include <rte_per_lcore.h> 52 #include <rte_lcore.h> 53 #include <rte_ring.h> 54 #include <rte_debug.h> 55 #include <rte_mempool.h> 56 #include <rte_string_fns.h> 57 58 #include <cmdline_rdline.h> 59 #include <cmdline_parse.h> 60 #include <cmdline_parse_string.h> 61 #include <cmdline_socket.h> 62 #include <cmdline.h> 63 #include "mp_commands.h" 64 65 /**********************************************************/ 66 67 struct cmd_send_result { 68 cmdline_fixed_string_t action; 69 cmdline_fixed_string_t message; 70 }; 71 72 static void cmd_send_parsed(void *parsed_result, 73 __attribute__((unused)) struct cmdline *cl, 74 __attribute__((unused)) void *data) 75 { 76 void *msg = NULL; 77 struct cmd_send_result *res = parsed_result; 78 79 if (rte_mempool_get(message_pool, &msg) < 0) 80 rte_panic("Failed to get message buffer\n"); 81 snprintf((char *)msg, string_size, "%s", res->message); 82 if (rte_ring_enqueue(send_ring, msg) < 0) { 83 printf("Failed to send message - message discarded\n"); 84 rte_mempool_put(message_pool, msg); 85 } 86 } 87 88 cmdline_parse_token_string_t cmd_send_action = 89 TOKEN_STRING_INITIALIZER(struct cmd_send_result, action, "send"); 90 cmdline_parse_token_string_t cmd_send_message = 91 TOKEN_STRING_INITIALIZER(struct cmd_send_result, message, NULL); 92 93 cmdline_parse_inst_t cmd_send = { 94 .f = cmd_send_parsed, /* function to call */ 95 .data = NULL, /* 2nd arg of func */ 96 .help_str = "send a string to another process", 97 .tokens = { /* token list, NULL terminated */ 98 (void *)&cmd_send_action, 99 (void *)&cmd_send_message, 100 NULL, 101 }, 102 }; 103 104 /**********************************************************/ 105 106 struct cmd_quit_result { 107 cmdline_fixed_string_t quit; 108 }; 109 110 static void cmd_quit_parsed(__attribute__((unused)) void *parsed_result, 111 struct cmdline *cl, 112 __attribute__((unused)) void *data) 113 { 114 quit = 1; 115 cmdline_quit(cl); 116 } 117 118 cmdline_parse_token_string_t cmd_quit_quit = 119 TOKEN_STRING_INITIALIZER(struct cmd_quit_result, quit, "quit"); 120 121 cmdline_parse_inst_t cmd_quit = { 122 .f = cmd_quit_parsed, /* function to call */ 123 .data = NULL, /* 2nd arg of func */ 124 .help_str = "close the application", 125 .tokens = { /* token list, NULL terminated */ 126 (void *)&cmd_quit_quit, 127 NULL, 128 }, 129 }; 130 131 /**********************************************************/ 132 133 struct cmd_help_result { 134 cmdline_fixed_string_t help; 135 }; 136 137 static void cmd_help_parsed(__attribute__((unused)) void *parsed_result, 138 struct cmdline *cl, 139 __attribute__((unused)) void *data) 140 { 141 cmdline_printf(cl, "Simple demo example of multi-process in RTE\n\n" 142 "This is a readline-like interface that can be used to\n" 143 "send commands to the simple app. Commands supported are:\n\n" 144 "- send [string]\n" "- help\n" "- quit\n\n"); 145 } 146 147 cmdline_parse_token_string_t cmd_help_help = 148 TOKEN_STRING_INITIALIZER(struct cmd_help_result, help, "help"); 149 150 cmdline_parse_inst_t cmd_help = { 151 .f = cmd_help_parsed, /* function to call */ 152 .data = NULL, /* 2nd arg of func */ 153 .help_str = "show help", 154 .tokens = { /* token list, NULL terminated */ 155 (void *)&cmd_help_help, 156 NULL, 157 }, 158 }; 159 160 /****** CONTEXT (list of instruction) */ 161 cmdline_parse_ctx_t simple_mp_ctx[] = { 162 (cmdline_parse_inst_t *)&cmd_send, 163 (cmdline_parse_inst_t *)&cmd_quit, 164 (cmdline_parse_inst_t *)&cmd_help, 165 NULL, 166 }; 167