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