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_log.h> 47 #include <rte_lcore.h> 48 49 #include <rte_power.h> 50 51 #include "vm_power_cli_guest.h" 52 53 54 #define CHANNEL_PATH "/dev/virtio-ports/virtio.serial.port.poweragent" 55 56 57 #define RTE_LOGTYPE_GUEST_CHANNEL RTE_LOGTYPE_USER1 58 59 struct cmd_quit_result { 60 cmdline_fixed_string_t quit; 61 }; 62 63 static void cmd_quit_parsed(__attribute__((unused)) void *parsed_result, 64 __attribute__((unused)) struct cmdline *cl, 65 __attribute__((unused)) void *data) 66 { 67 unsigned lcore_id; 68 69 RTE_LCORE_FOREACH(lcore_id) { 70 rte_power_exit(lcore_id); 71 } 72 cmdline_quit(cl); 73 } 74 75 cmdline_parse_token_string_t cmd_quit_quit = 76 TOKEN_STRING_INITIALIZER(struct cmd_quit_result, quit, "quit"); 77 78 cmdline_parse_inst_t cmd_quit = { 79 .f = cmd_quit_parsed, /* function to call */ 80 .data = NULL, /* 2nd arg of func */ 81 .help_str = "close the application", 82 .tokens = { /* token list, NULL terminated */ 83 (void *)&cmd_quit_quit, 84 NULL, 85 }, 86 }; 87 88 /* *** VM operations *** */ 89 90 struct cmd_set_cpu_freq_result { 91 cmdline_fixed_string_t set_cpu_freq; 92 uint8_t lcore_id; 93 cmdline_fixed_string_t cmd; 94 }; 95 96 static void 97 cmd_set_cpu_freq_parsed(void *parsed_result, struct cmdline *cl, 98 __attribute__((unused)) void *data) 99 { 100 int ret = -1; 101 struct cmd_set_cpu_freq_result *res = parsed_result; 102 103 if (!strcmp(res->cmd , "up")) 104 ret = rte_power_freq_up(res->lcore_id); 105 else if (!strcmp(res->cmd , "down")) 106 ret = rte_power_freq_down(res->lcore_id); 107 else if (!strcmp(res->cmd , "min")) 108 ret = rte_power_freq_min(res->lcore_id); 109 else if (!strcmp(res->cmd , "max")) 110 ret = rte_power_freq_max(res->lcore_id); 111 else if (!strcmp(res->cmd, "enable_turbo")) 112 ret = rte_power_freq_enable_turbo(res->lcore_id); 113 else if (!strcmp(res->cmd, "disable_turbo")) 114 ret = rte_power_freq_disable_turbo(res->lcore_id); 115 if (ret != 1) 116 cmdline_printf(cl, "Error sending message: %s\n", strerror(ret)); 117 } 118 119 cmdline_parse_token_string_t cmd_set_cpu_freq = 120 TOKEN_STRING_INITIALIZER(struct cmd_set_cpu_freq_result, 121 set_cpu_freq, "set_cpu_freq"); 122 cmdline_parse_token_string_t cmd_set_cpu_freq_core_num = 123 TOKEN_NUM_INITIALIZER(struct cmd_set_cpu_freq_result, 124 lcore_id, UINT8); 125 cmdline_parse_token_string_t cmd_set_cpu_freq_cmd_cmd = 126 TOKEN_STRING_INITIALIZER(struct cmd_set_cpu_freq_result, 127 cmd, "up#down#min#max#enable_turbo#disable_turbo"); 128 129 cmdline_parse_inst_t cmd_set_cpu_freq_set = { 130 .f = cmd_set_cpu_freq_parsed, 131 .data = NULL, 132 .help_str = "set_cpu_freq <core_num> <up|down|min|max>, Set the current " 133 "frequency for the specified core by scaling up/down/min/max", 134 .tokens = { 135 (void *)&cmd_set_cpu_freq, 136 (void *)&cmd_set_cpu_freq_core_num, 137 (void *)&cmd_set_cpu_freq_cmd_cmd, 138 NULL, 139 }, 140 }; 141 142 cmdline_parse_ctx_t main_ctx[] = { 143 (cmdline_parse_inst_t *)&cmd_quit, 144 (cmdline_parse_inst_t *)&cmd_set_cpu_freq_set, 145 NULL, 146 }; 147 148 void 149 run_cli(__attribute__((unused)) void *arg) 150 { 151 struct cmdline *cl; 152 153 cl = cmdline_stdin_new(main_ctx, "vmpower(guest)> "); 154 if (cl == NULL) 155 return; 156 157 cmdline_interact(cl); 158 cmdline_stdin_exit(cl); 159 } 160