New upstream version 18.02
[deb_dpdk.git] / examples / multi_process / simple_mp / mp_commands.c
1 /* SPDX-License-Identifier: BSD-3-Clause
2  * Copyright(c) 2010-2014 Intel Corporation
3  */
4 #include <stdint.h>
5 #include <string.h>
6 #include <stdlib.h>
7 #include <stdarg.h>
8 #include <inttypes.h>
9 #include <stdio.h>
10 #include <termios.h>
11 #include <errno.h>
12 #include <sys/queue.h>
13
14 #include <rte_common.h>
15 #include <rte_memory.h>
16 #include <rte_eal.h>
17 #include <rte_atomic.h>
18 #include <rte_branch_prediction.h>
19 #include <rte_launch.h>
20 #include <rte_log.h>
21 #include <rte_per_lcore.h>
22 #include <rte_lcore.h>
23 #include <rte_ring.h>
24 #include <rte_debug.h>
25 #include <rte_mempool.h>
26 #include <rte_string_fns.h>
27
28 #include <cmdline_rdline.h>
29 #include <cmdline_parse.h>
30 #include <cmdline_parse_string.h>
31 #include <cmdline_socket.h>
32 #include <cmdline.h>
33 #include "mp_commands.h"
34
35 /**********************************************************/
36
37 struct cmd_send_result {
38         cmdline_fixed_string_t action;
39         cmdline_fixed_string_t message;
40 };
41
42 static void cmd_send_parsed(void *parsed_result,
43                 __attribute__((unused)) struct cmdline *cl,
44                 __attribute__((unused)) void *data)
45 {
46         void *msg = NULL;
47         struct cmd_send_result *res = parsed_result;
48
49         if (rte_mempool_get(message_pool, &msg) < 0)
50                 rte_panic("Failed to get message buffer\n");
51         snprintf((char *)msg, STR_TOKEN_SIZE, "%s", res->message);
52         if (rte_ring_enqueue(send_ring, msg) < 0) {
53                 printf("Failed to send message - message discarded\n");
54                 rte_mempool_put(message_pool, msg);
55         }
56 }
57
58 cmdline_parse_token_string_t cmd_send_action =
59         TOKEN_STRING_INITIALIZER(struct cmd_send_result, action, "send");
60 cmdline_parse_token_string_t cmd_send_message =
61         TOKEN_STRING_INITIALIZER(struct cmd_send_result, message, NULL);
62
63 cmdline_parse_inst_t cmd_send = {
64         .f = cmd_send_parsed,  /* function to call */
65         .data = NULL,      /* 2nd arg of func */
66         .help_str = "send a string to another process",
67         .tokens = {        /* token list, NULL terminated */
68                         (void *)&cmd_send_action,
69                         (void *)&cmd_send_message,
70                         NULL,
71         },
72 };
73
74 /**********************************************************/
75
76 struct cmd_quit_result {
77         cmdline_fixed_string_t quit;
78 };
79
80 static void cmd_quit_parsed(__attribute__((unused)) void *parsed_result,
81                             struct cmdline *cl,
82                             __attribute__((unused)) void *data)
83 {
84         quit = 1;
85         cmdline_quit(cl);
86 }
87
88 cmdline_parse_token_string_t cmd_quit_quit =
89         TOKEN_STRING_INITIALIZER(struct cmd_quit_result, quit, "quit");
90
91 cmdline_parse_inst_t cmd_quit = {
92         .f = cmd_quit_parsed,  /* function to call */
93         .data = NULL,      /* 2nd arg of func */
94         .help_str = "close the application",
95         .tokens = {        /* token list, NULL terminated */
96                 (void *)&cmd_quit_quit,
97                 NULL,
98         },
99 };
100
101 /**********************************************************/
102
103 struct cmd_help_result {
104         cmdline_fixed_string_t help;
105 };
106
107 static void cmd_help_parsed(__attribute__((unused)) void *parsed_result,
108                             struct cmdline *cl,
109                             __attribute__((unused)) void *data)
110 {
111         cmdline_printf(cl, "Simple demo example of multi-process in RTE\n\n"
112                         "This is a readline-like interface that can be used to\n"
113                         "send commands to the simple app. Commands supported are:\n\n"
114                         "- send [string]\n" "- help\n" "- quit\n\n");
115 }
116
117 cmdline_parse_token_string_t cmd_help_help =
118         TOKEN_STRING_INITIALIZER(struct cmd_help_result, help, "help");
119
120 cmdline_parse_inst_t cmd_help = {
121         .f = cmd_help_parsed,  /* function to call */
122         .data = NULL,      /* 2nd arg of func */
123         .help_str = "show help",
124         .tokens = {        /* token list, NULL terminated */
125                 (void *)&cmd_help_help,
126                 NULL,
127         },
128 };
129
130 /****** CONTEXT (list of instruction) */
131 cmdline_parse_ctx_t simple_mp_ctx[] = {
132                 (cmdline_parse_inst_t *)&cmd_send,
133                 (cmdline_parse_inst_t *)&cmd_quit,
134                 (cmdline_parse_inst_t *)&cmd_help,
135         NULL,
136 };