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 34 35 #include <stdint.h> 36 #include <string.h> 37 #include <stdio.h> 38 #include <termios.h> 39 40 #include <cmdline_rdline.h> 41 #include <cmdline_parse.h> 42 #include <cmdline_parse_string.h> 43 #include <cmdline_parse_num.h> 44 #include <cmdline_socket.h> 45 #include <cmdline.h> 46 #include <rte_config.h> 47 #include <rte_log.h> 48 #include <rte_lcore.h> 49 50 #include <rte_power.h> 51 52 #include "vm_power_cli_guest.h" 53 54 55 #define CHANNEL_PATH "/dev/virtio-ports/virtio.serial.port.poweragent" 56 57 58 #define RTE_LOGTYPE_GUEST_CHANNEL RTE_LOGTYPE_USER1 59 60 struct cmd_quit_result { 61 cmdline_fixed_string_t quit; 62 }; 63 64 static void cmd_quit_parsed(__attribute__((unused)) void *parsed_result, 65 __attribute__((unused)) struct cmdline *cl, 66 __attribute__((unused)) void *data) 67 { 68 unsigned lcore_id; 69 70 RTE_LCORE_FOREACH(lcore_id) { 71 rte_power_exit(lcore_id); 72 } 73 cmdline_quit(cl); 74 } 75 76 cmdline_parse_token_string_t cmd_quit_quit = 77 TOKEN_STRING_INITIALIZER(struct cmd_quit_result, quit, "quit"); 78 79 cmdline_parse_inst_t cmd_quit = { 80 .f = cmd_quit_parsed, /* function to call */ 81 .data = NULL, /* 2nd arg of func */ 82 .help_str = "close the application", 83 .tokens = { /* token list, NULL terminated */ 84 (void *)&cmd_quit_quit, 85 NULL, 86 }, 87 }; 88 89 /* *** VM operations *** */ 90 91 struct cmd_set_cpu_freq_result { 92 cmdline_fixed_string_t set_cpu_freq; 93 uint8_t lcore_id; 94 cmdline_fixed_string_t cmd; 95 }; 96 97 static void 98 cmd_set_cpu_freq_parsed(void *parsed_result, struct cmdline *cl, 99 __attribute__((unused)) void *data) 100 { 101 int ret = -1; 102 struct cmd_set_cpu_freq_result *res = parsed_result; 103 104 if (!strcmp(res->cmd , "up")) 105 ret = rte_power_freq_up(res->lcore_id); 106 else if (!strcmp(res->cmd , "down")) 107 ret = rte_power_freq_down(res->lcore_id); 108 else if (!strcmp(res->cmd , "min")) 109 ret = rte_power_freq_min(res->lcore_id); 110 else if (!strcmp(res->cmd , "max")) 111 ret = rte_power_freq_max(res->lcore_id); 112 if (ret != 1) 113 cmdline_printf(cl, "Error sending message: %s\n", strerror(ret)); 114 } 115 116 cmdline_parse_token_string_t cmd_set_cpu_freq = 117 TOKEN_STRING_INITIALIZER(struct cmd_set_cpu_freq_result, 118 set_cpu_freq, "set_cpu_freq"); 119 cmdline_parse_token_string_t cmd_set_cpu_freq_core_num = 120 TOKEN_NUM_INITIALIZER(struct cmd_set_cpu_freq_result, 121 lcore_id, UINT8); 122 cmdline_parse_token_string_t cmd_set_cpu_freq_cmd_cmd = 123 TOKEN_STRING_INITIALIZER(struct cmd_set_cpu_freq_result, 124 cmd, "up#down#min#max"); 125 126 cmdline_parse_inst_t cmd_set_cpu_freq_set = { 127 .f = cmd_set_cpu_freq_parsed, 128 .data = NULL, 129 .help_str = "set_cpu_freq <core_num> <up|down|min|max>, Set the current " 130 "frequency for the specified core by scaling up/down/min/max", 131 .tokens = { 132 (void *)&cmd_set_cpu_freq, 133 (void *)&cmd_set_cpu_freq_core_num, 134 (void *)&cmd_set_cpu_freq_cmd_cmd, 135 NULL, 136 }, 137 }; 138 139 cmdline_parse_ctx_t main_ctx[] = { 140 (cmdline_parse_inst_t *)&cmd_quit, 141 (cmdline_parse_inst_t *)&cmd_set_cpu_freq_set, 142 NULL, 143 }; 144 145 void 146 run_cli(__attribute__((unused)) void *arg) 147 { 148 struct cmdline *cl; 149 150 cl = cmdline_stdin_new(main_ctx, "vmpower(guest)> "); 151 if (cl == NULL) 152 return; 153 154 cmdline_interact(cl); 155 cmdline_stdin_exit(cl); 156 } 157