1 /*- 2 * BSD LICENSE 3 * 4 * Copyright(c) 2010-2012 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 */ 34 #include <stdint.h> 35 #include <string.h> 36 #include <stdlib.h> 37 #include <stdarg.h> 38 #include <inttypes.h> 39 #include <stdio.h> 40 #include <termios.h> 41 #include <errno.h> 42 #include <sys/queue.h> 43 44 #include <rte_common.h> 45 #include <rte_memory.h> 46 #include <rte_memzone.h> 47 #include <rte_tailq.h> 48 #include <rte_eal.h> 49 #include <rte_atomic.h> 50 #include <rte_branch_prediction.h> 51 #include <rte_launch.h> 52 #include <rte_log.h> 53 #include <rte_per_lcore.h> 54 #include <rte_lcore.h> 55 #include <rte_ring.h> 56 #include <rte_debug.h> 57 #include <rte_mempool.h> 58 #include <rte_string_fns.h> 59 60 #include <cmdline_rdline.h> 61 #include <cmdline_parse.h> 62 #include <cmdline_parse_string.h> 63 #include <cmdline_socket.h> 64 #include <cmdline.h> 65 #include "mp_commands.h" 66 67 /**********************************************************/ 68 69 struct cmd_send_result { 70 cmdline_fixed_string_t action; 71 cmdline_fixed_string_t message; 72 }; 73 74 static void cmd_send_parsed(void *parsed_result, 75 __attribute__((unused)) struct cmdline *cl, 76 __attribute__((unused)) void *data) 77 { 78 void *msg; 79 struct cmd_send_result *res = parsed_result; 80 81 if (rte_mempool_get(message_pool, &msg) < 0) 82 rte_panic("Failed to get message buffer\n"); 83 rte_snprintf((char *)msg, string_size, "%s", res->message); 84 if (rte_ring_enqueue(send_ring, msg) < 0) { 85 printf("Failed to send message - message discarded\n"); 86 rte_mempool_put(message_pool, msg); 87 } 88 } 89 90 cmdline_parse_token_string_t cmd_send_action = 91 TOKEN_STRING_INITIALIZER(struct cmd_send_result, action, "send"); 92 cmdline_parse_token_string_t cmd_send_message = 93 TOKEN_STRING_INITIALIZER(struct cmd_send_result, message, NULL); 94 95 cmdline_parse_inst_t cmd_send = { 96 .f = cmd_send_parsed, /* function to call */ 97 .data = NULL, /* 2nd arg of func */ 98 .help_str = "send a string to another process", 99 .tokens = { /* token list, NULL terminated */ 100 (void *)&cmd_send_action, 101 (void *)&cmd_send_message, 102 NULL, 103 }, 104 }; 105 106 /**********************************************************/ 107 108 struct cmd_quit_result { 109 cmdline_fixed_string_t quit; 110 }; 111 112 static void cmd_quit_parsed(__attribute__((unused)) void *parsed_result, 113 struct cmdline *cl, 114 __attribute__((unused)) void *data) 115 { 116 quit = 1; 117 cmdline_quit(cl); 118 } 119 120 cmdline_parse_token_string_t cmd_quit_quit = 121 TOKEN_STRING_INITIALIZER(struct cmd_quit_result, quit, "quit"); 122 123 cmdline_parse_inst_t cmd_quit = { 124 .f = cmd_quit_parsed, /* function to call */ 125 .data = NULL, /* 2nd arg of func */ 126 .help_str = "close the application", 127 .tokens = { /* token list, NULL terminated */ 128 (void *)&cmd_quit_quit, 129 NULL, 130 }, 131 }; 132 133 /**********************************************************/ 134 135 struct cmd_help_result { 136 cmdline_fixed_string_t help; 137 }; 138 139 static void cmd_help_parsed(__attribute__((unused)) void *parsed_result, 140 struct cmdline *cl, 141 __attribute__((unused)) void *data) 142 { 143 cmdline_printf(cl, "Simple demo example of multi-process in RTE\n\n" 144 "This is a readline-like interface that can be used to\n" 145 "send commands to the simple app. Commands supported are:\n\n" 146 "- send [string]\n" "- help\n" "- quit\n\n"); 147 } 148 149 cmdline_parse_token_string_t cmd_help_help = 150 TOKEN_STRING_INITIALIZER(struct cmd_help_result, help, "help"); 151 152 cmdline_parse_inst_t cmd_help = { 153 .f = cmd_help_parsed, /* function to call */ 154 .data = NULL, /* 2nd arg of func */ 155 .help_str = "show help", 156 .tokens = { /* token list, NULL terminated */ 157 (void *)&cmd_help_help, 158 NULL, 159 }, 160 }; 161 162 /****** CONTEXT (list of instruction) */ 163 cmdline_parse_ctx_t simple_mp_ctx[] = { 164 (cmdline_parse_inst_t *)&cmd_send, 165 (cmdline_parse_inst_t *)&cmd_quit, 166 (cmdline_parse_inst_t *)&cmd_help, 167 NULL, 168 }; 169