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 * version: DPDK.L.1.2.3-3 34 */ 35 #include <stdint.h> 36 #include <string.h> 37 #include <stdlib.h> 38 #include <stdarg.h> 39 #include <inttypes.h> 40 #include <stdio.h> 41 #include <termios.h> 42 #include <errno.h> 43 #include <sys/queue.h> 44 45 #include <rte_common.h> 46 #include <rte_memory.h> 47 #include <rte_memzone.h> 48 #include <rte_tailq.h> 49 #include <rte_eal.h> 50 #include <rte_atomic.h> 51 #include <rte_branch_prediction.h> 52 #include <rte_launch.h> 53 #include <rte_log.h> 54 #include <rte_per_lcore.h> 55 #include <rte_lcore.h> 56 #include <rte_ring.h> 57 #include <rte_debug.h> 58 #include <rte_mempool.h> 59 #include <rte_string_fns.h> 60 61 #include <cmdline_rdline.h> 62 #include <cmdline_parse.h> 63 #include <cmdline_parse_string.h> 64 #include <cmdline_socket.h> 65 #include <cmdline.h> 66 #include "mp_commands.h" 67 68 /**********************************************************/ 69 70 struct cmd_send_result { 71 cmdline_fixed_string_t action; 72 cmdline_fixed_string_t message; 73 }; 74 75 static void cmd_send_parsed(void *parsed_result, 76 __attribute__((unused)) struct cmdline *cl, 77 __attribute__((unused)) void *data) 78 { 79 void *msg; 80 struct cmd_send_result *res = parsed_result; 81 82 if (rte_mempool_get(message_pool, &msg) < 0) 83 rte_panic("Failed to get message buffer\n"); 84 rte_snprintf((char *)msg, string_size, "%s", res->message); 85 if (rte_ring_enqueue(send_ring, msg) < 0) { 86 printf("Failed to send message - message discarded\n"); 87 rte_mempool_put(message_pool, msg); 88 } 89 } 90 91 cmdline_parse_token_string_t cmd_send_action = 92 TOKEN_STRING_INITIALIZER(struct cmd_send_result, action, "send"); 93 cmdline_parse_token_string_t cmd_send_message = 94 TOKEN_STRING_INITIALIZER(struct cmd_send_result, message, NULL); 95 96 cmdline_parse_inst_t cmd_send = { 97 .f = cmd_send_parsed, /* function to call */ 98 .data = NULL, /* 2nd arg of func */ 99 .help_str = "send a string to another process", 100 .tokens = { /* token list, NULL terminated */ 101 (void *)&cmd_send_action, 102 (void *)&cmd_send_message, 103 NULL, 104 }, 105 }; 106 107 /**********************************************************/ 108 109 struct cmd_quit_result { 110 cmdline_fixed_string_t quit; 111 }; 112 113 static void cmd_quit_parsed(__attribute__((unused)) void *parsed_result, 114 struct cmdline *cl, 115 __attribute__((unused)) void *data) 116 { 117 quit = 1; 118 cmdline_quit(cl); 119 } 120 121 cmdline_parse_token_string_t cmd_quit_quit = 122 TOKEN_STRING_INITIALIZER(struct cmd_quit_result, quit, "quit"); 123 124 cmdline_parse_inst_t cmd_quit = { 125 .f = cmd_quit_parsed, /* function to call */ 126 .data = NULL, /* 2nd arg of func */ 127 .help_str = "close the application", 128 .tokens = { /* token list, NULL terminated */ 129 (void *)&cmd_quit_quit, 130 NULL, 131 }, 132 }; 133 134 /**********************************************************/ 135 136 struct cmd_help_result { 137 cmdline_fixed_string_t help; 138 }; 139 140 static void cmd_help_parsed(__attribute__((unused)) void *parsed_result, 141 struct cmdline *cl, 142 __attribute__((unused)) void *data) 143 { 144 cmdline_printf(cl, "Simple demo example of multi-process in RTE\n\n" 145 "This is a readline-like interface that can be used to\n" 146 "send commands to the simple app. Commands supported are:\n\n" 147 "- send [string]\n" "- help\n" "- quit\n\n"); 148 } 149 150 cmdline_parse_token_string_t cmd_help_help = 151 TOKEN_STRING_INITIALIZER(struct cmd_help_result, help, "help"); 152 153 cmdline_parse_inst_t cmd_help = { 154 .f = cmd_help_parsed, /* function to call */ 155 .data = NULL, /* 2nd arg of func */ 156 .help_str = "show help", 157 .tokens = { /* token list, NULL terminated */ 158 (void *)&cmd_help_help, 159 NULL, 160 }, 161 }; 162 163 /****** CONTEXT (list of instruction) */ 164 cmdline_parse_ctx_t simple_mp_ctx[] = { 165 (cmdline_parse_inst_t *)&cmd_send, 166 (cmdline_parse_inst_t *)&cmd_quit, 167 (cmdline_parse_inst_t *)&cmd_help, 168 NULL, 169 }; 170