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1 /*
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2 * CDDL HEADER START
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3 *
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4 * The contents of this file are subject to the terms of the
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5 * Common Development and Distribution License, Version 1.0 only
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6 * (the "License"). You may not use this file except in compliance
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7 * with the License.
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8 *
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9 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
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10 * or http://www.opensolaris.org/os/licensing.
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11 * See the License for the specific language governing permissions
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12 * and limitations under the License.
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13 *
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14 * When distributing Covered Code, include this CDDL HEADER in each
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15 * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
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16 * If applicable, add the following below this CDDL HEADER, with the
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17 * fields enclosed by brackets "[]" replaced with your own identifying
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18 * information: Portions Copyright [yyyy] [name of copyright owner]
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19 *
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20 * CDDL HEADER END
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21 */
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22 /*
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23 * Copyright 2005 Sun Microsystems, Inc. All rights reserved.
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24 * Use is subject to license terms.
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25 */
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26
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27 #pragma ident "@(#)devctl.c 1.6 05/11/09 SMI"
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28
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29
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30 /*
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31 * devctl - device control utility
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32 *
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33 * to compile:
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34 * cc -o devctl -ldevice -ldevinfo devctl.c
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35 *
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36 * usage: devctl [-v] command [device/bus pathname]
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37 *
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38 * Commands:
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39 * list - list all controllers exporting the devctl interface
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40 * online - online a device
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41 * offline - offline a device
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42 * remove - remove a device from the device tree
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43 * quiesce - quiesce the bus
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44 * unquiesce - resume bus activity
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45 * configure - configure a bus's child devices
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46 * unconfigure - unconfigure a bus's child devices
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47 * bus-reset - reset a bus
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48 * dev-reset - reset a device
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49 * bus-getstate - return the current state of the bus
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50 * dev-getstate - return the current state of the device
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51 * bus-devcreate - create a new device, bus specific
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52 * dev-raisepower - power up a device via pm_raise_power() (pm)
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53 * dev-idlecomp - idle a device's component 0 (pm)
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54 * dev-busycomp - busy a device's component 0 (pm)
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55 * dev-testbusy - test a device's component 0's busy state (pm)
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56 * dev-changepowerhigh - power up a device via pm_power_has_changed()
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57 * (pm)
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58 * dev-changepowerlow - power off a device via pm_power_has_changed()
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59 * (pm)
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60 * dev-failsuspend - fail DDI_SUSPEND (pm)
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61 * dev-changeonresume - issue pm_power_has_changed() vs,
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62 * pm_raise_power() on device resume (pm)
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63 * dev-nolowerpower - don't call pm_lower_power() on detach (pm)
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64 * dev-promprintf - issue a prom_printf() call (pm)
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65 * bus-raisepower - power up a bus via pm_raise_power() (pm)
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66 * bus-idlecomp - idle a bus' component (pm)
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67 * bus-busycomp - busy a bus' component (pm)
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68 * bus-testbusy - test a bus' component busy state (pm)
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69 * bus-changepowerhigh - power up a bus via pm_power_has_changed() (pm)
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70 * bus-changepowerlow - power off a bus via pm_power_has_changed()
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71 * (pm)
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72 * bus-failsuspend - fail DDI_SUSPEND (pm)
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73 * bus-teststrict - test is bus driver is strict or involved (pm)
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74 * bus-noinvol - mark idle twice when child detaches
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75 *
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76 *
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77 * Returns:
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78 * - Success
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79 * - Operation not supported by device
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80 * - No Permission
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81 * - No Such Device
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82 *
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83 * Examples:
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84 * devctl list - list all controllers exporting a :devctl node
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85 * devctl offline /dev/dsk/c0t3d0s0 - offline disk
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86 * devctl dev-getstate /devices/sbus@1f,0/espdma@e,8400000/esp@e,8800000\
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87 * sd@3,0
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88 *
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89 */
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90
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91 #include <stdio.h>
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92 #include <string.h>
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93 #include <unistd.h>
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94 #include <stdlib.h>
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95 #include <sys/types.h>
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96 #include <sys/errno.h>
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97 #include <sys/stat.h>
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98 #include <sys/param.h>
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99 #include <libdevice.h>
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100 #include <libdevinfo.h>
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101 #include <sys/sunddi.h>
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102
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103 typedef struct cmds {
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104 char *cmdname;
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105 int (*cmdf)(devctl_hdl_t);
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106 } cmds_t;
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107
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108 extern int errno;
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109
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110 static void setprogname(char *name);
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111 static void print_bus_state(char *devname, uint_t state);
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112 static void print_dev_state(char *devname, uint_t state);
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113 static int dev_getstate(devctl_hdl_t);
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114 static int bus_getstate(devctl_hdl_t);
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115 static int bus_devcreate(devctl_hdl_t);
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116 static void run_list_ctlrs(void);
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117 static struct cmds *dc_cmd();
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118 static int nexif(di_node_t din, di_minor_t dim, void *arg);
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119 static void *s_malloc(size_t);
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120 static void *s_realloc(void *, size_t);
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121 static char *s_strdup(char *);
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122 static int dev_pm_testbusy(devctl_hdl_t);
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123 static int bus_pm_teststrict(devctl_hdl_t);
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124
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125 static char *devctl_device;
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126 static char *orig_path;
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127 static char *devctl_cmdname;
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128 static char *progname;
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129 static int verbose;
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130 static int debug;
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131 static char *dev_name;
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132 static char **dev_props;
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133
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134 static const char *usage = "%s [-v] list | online | offline | remove |\n"
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135 "\tquiesce | unquiesce | configure | unconfigure |\n"
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136 "\t{bus,dev}-reset {bus,dev}-getstate | {bus,dev}-raisepower |\n"
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137 "\t{bus,dev}-idlecomp | {bus,dev}-busycomp |\n"
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138 "\t{bus,dev}-changepowerhigh | {bus,dev}-changepowerlow |\n"
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139 "\t{bus,dev}-testbusy | {bus,dev}-failsuspend | dev-changeonresume |\n"
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140 "\tdev-promprintf | dev-nolowerpower | bus-teststrict |\n"
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141 "\tbus-noinvol [/dev/... | /devices/...]\n";
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142
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143 static struct cmds device_cmds[] = {
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144 {"online", devctl_device_online},
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145 {"offline", devctl_device_offline},
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146 {"remove", devctl_device_remove},
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147 {"dev-reset", devctl_device_reset},
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148 {"dev-getstate", dev_getstate},
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149 {"dev-raisepower", devctl_pm_raisepower},
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150 {"dev-busycomp", devctl_pm_busycomponent},
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151 {"dev-idlecomp", devctl_pm_idlecomponent},
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152 {"dev-testbusy", dev_pm_testbusy},
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153 {"dev-changepowerlow", devctl_pm_changepowerlow},
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154 {"dev-changepowerhigh", devctl_pm_changepowerhigh},
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155 {"dev-failsuspend", devctl_pm_failsuspend},
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156 {"dev-changeonresume", devctl_pm_device_changeonresume},
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157 {"dev-promprintf", devctl_pm_device_promprintf},
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158 {"dev-nolowerpower", devctl_pm_device_no_lower_power},
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159 {NULL, NULL},
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160 };
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161
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162 static struct cmds bus_cmds[] = {
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163 {"quiesce", devctl_bus_quiesce},
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164 {"unquiesce", devctl_bus_unquiesce},
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165 {"bus-reset", devctl_bus_reset},
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166 {"configure", devctl_bus_configure},
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167 {"unconfigure", devctl_bus_unconfigure},
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168 {"bus-getstate", bus_getstate},
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169 {"bus-devcreate", bus_devcreate},
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170 {"bus-raisepower", devctl_pm_raisepower},
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171 {"bus-busycomp", devctl_pm_busycomponent},
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172 {"bus-idlecomp", devctl_pm_idlecomponent},
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173 {"bus-changepowerlow", devctl_pm_changepowerlow},
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174 {"bus-changepowerhigh", devctl_pm_changepowerhigh},
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175 {"bus-testbusy", dev_pm_testbusy},
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176 {"bus-failsuspend", devctl_pm_failsuspend},
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177 {"bus-teststrict", bus_pm_teststrict},
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178 {"bus-noinvol", devctl_pm_bus_no_invol},
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179 {NULL, NULL},
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180 };
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181
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182
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183
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184 int
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185 main(int argc, char *argv[])
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186 {
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187 int c;
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188 int rv;
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189 int pathlen;
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190 struct cmds *dcmd;
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191 devctl_hdl_t dcp;
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192 struct stat stat_buf;
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193
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194 setprogname(argv[0]);
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195 while ((c = getopt(argc, argv, "vd")) != -1) {
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196 switch (c) {
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197 case 'v':
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198 ++verbose;
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199 break;
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200 case 'd':
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201 ++debug;
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202 (void) putenv("LIBDEVICE_DEBUG");
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203 break;
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204 default:
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205 (void) fprintf(stderr, usage, progname);
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206 exit(1);
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207 /*NOTREACHED*/
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208 }
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209 }
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210
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211 if (optind == argc) {
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212 (void) fprintf(stderr, usage, progname);
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213 exit(-1);
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214 }
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215
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216 devctl_cmdname = argv[optind++];
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217
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218 if (strcmp(devctl_cmdname, "list") == 0) {
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219 run_list_ctlrs();
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220 exit(0);
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221 }
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222
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223 /*
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224 * any command other than "list" requires a device path
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225 */
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226 if (((optind + 1) > argc)) {
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227 (void) fprintf(stderr, usage, progname);
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228 exit(-1);
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229 }
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230
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231 orig_path = s_strdup(argv[optind]);
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232 devctl_device = s_malloc(MAXPATHLEN);
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233 (void) strcpy(devctl_device, orig_path);
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234
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235 /*
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236 * Additional properties follow for bus-devcreate
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237 */
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238 if ((optind + 1 < argc) &&
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239 strcmp(devctl_cmdname, "bus-devcreate") == 0) {
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240 int i;
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241 optind++;
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242 dev_name = s_strdup(argv[optind]);
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243 i = argc - optind;
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244 dev_props = s_malloc(i * sizeof (char *));
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245 while (--i) {
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246 dev_props[i - 1] = s_strdup(argv[optind + i]);
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247 }
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248 }
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249
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250 /*
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251 * if the device is a logical name, get the physical name
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252 */
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253 if (lstat(orig_path, &stat_buf) == 0) {
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254 if (S_ISLNK(stat_buf.st_mode)) {
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255 if ((pathlen = readlink(orig_path, devctl_device,
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256 MAXPATHLEN)) == -1) {
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257 (void) fprintf(stderr,
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258 "devctl: readlink(%s) - %s\n",
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259 orig_path, strerror(errno));
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260 exit(-1);
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261 }
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262 devctl_device[pathlen] = '\0';
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263 }
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264 }
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265
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266 if ((dcmd = dc_cmd(device_cmds, devctl_cmdname)) == NULL) {
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267 dcmd = dc_cmd(bus_cmds, devctl_cmdname);
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268 if (dcmd == NULL) {
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269 (void) fprintf(stderr, "unrecognized command (%s)\n",
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270 devctl_cmdname);
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271 (void) fprintf(stderr, usage, progname);
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272 exit(1);
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273 } else if (strcmp(devctl_cmdname, "bus-raisepower") == 0 ||
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274 strcmp(devctl_cmdname, "bus-changepowerlow") == 0 ||
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275 strcmp(devctl_cmdname, "bus-changepowerhigh") == 0 ||
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276 strcmp(devctl_cmdname, "bus-idlecomp") == 0 ||
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277 strcmp(devctl_cmdname, "bus-busycomp") == 0 ||
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278 strcmp(devctl_cmdname, "bus-testbusy") == 0 ||
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279 strcmp(devctl_cmdname, "bus-failsuspend") == 0 ||
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280 strcmp(devctl_cmdname, "bus-teststrict") == 0 ||
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281 strcmp(devctl_cmdname, "bus-noinvol") == 0) {
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282 dcp = devctl_pm_bus_acquire(devctl_device, 0);
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283 if (dcp == NULL) {
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284 (void) fprintf(stderr,
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285 "devctl: device_pm_bus_acquire %s - %s\n",
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286 devctl_device, strerror(errno));
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287 exit(-1);
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288 }
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289 } else {
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290 dcp = devctl_bus_acquire(devctl_device, 0);
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291 if (dcp == NULL) {
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292 (void) fprintf(stderr, "devctl: bus_acquire "
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293 "%s - %s\n",
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294 devctl_device, strerror(errno));
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295 exit(-1);
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296 }
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297 }
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298 } else if (strcmp(devctl_cmdname, "dev-raisepower") == 0 ||
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299 strcmp(devctl_cmdname, "dev-changepowerlow") == 0 ||
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300 strcmp(devctl_cmdname, "dev-changepowerhigh") == 0 ||
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301 strcmp(devctl_cmdname, "dev-idlecomp") == 0 ||
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302 strcmp(devctl_cmdname, "dev-busycomp") == 0 ||
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303 strcmp(devctl_cmdname, "dev-testbusy") == 0 ||
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304 strcmp(devctl_cmdname, "dev-failsuspend") == 0 ||
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305 strcmp(devctl_cmdname, "dev-changeonresume") == 0 ||
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306 strcmp(devctl_cmdname, "dev-promprintf") == 0 ||
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307 strcmp(devctl_cmdname, "dev-nolowerpower") == 0) {
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308 dcp = devctl_pm_dev_acquire(devctl_device, 0);
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309 if (dcp == NULL) {
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310 (void) fprintf(stderr,
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311 "devctl: device_pm_dev_acquire %s - %s\n",
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312 devctl_device, strerror(errno));
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313 exit(-1);
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314 }
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315 } else {
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316 dcp = devctl_device_acquire(devctl_device, 0);
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317 if (dcp == NULL) {
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318 (void) fprintf(stderr,
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319 "devctl: device_acquire %s - %s\n",
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320 devctl_device, strerror(errno));
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321 exit(-1);
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322 }
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323 }
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324
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325 if (verbose)
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326 (void) printf("devctl: cmd (%s) device (%s)\n",
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327 devctl_cmdname, orig_path);
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328
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329 (void) fflush(NULL); /* get output out of the way */
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330
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331 rv = (dcmd->cmdf)(dcp);
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332
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333 if (rv == -1) {
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334 perror("devctl");
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335 exit(-1);
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336 }
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337 return (0);
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338 } /* main */
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339
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340 static int
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341 dev_pm_testbusy(devctl_hdl_t dcp)
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342 {
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343 int rv;
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344 uint_t *busyp;
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345
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346 busyp = s_malloc(sizeof (uint_t));
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347 rv = devctl_pm_testbusy(dcp, busyp);
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348 if (rv != -1)
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349 (void) printf("%s: busy state %d\n", orig_path, *busyp);
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350
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351 return (0);
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352 }
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353
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354 static int
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355 bus_pm_teststrict(devctl_hdl_t dcp)
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356 {
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357 int rv;
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358 uint_t *strict;
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359
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360 strict = s_malloc(sizeof (uint_t));
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361
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362 rv = devctl_pm_bus_teststrict(dcp, strict);
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363 if (rv != -1)
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364 (void) printf("%s: strict %d\n", orig_path, *strict);
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365
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366 return (0);
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367 }
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368
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369 static int
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370 dev_getstate(devctl_hdl_t dcp)
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371 {
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372 int rv;
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373 uint_t state;
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374
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375 rv = devctl_device_getstate(dcp, &state);
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376 if (rv != -1)
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377 print_dev_state(orig_path, state);
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378
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379 return (0);
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380 }
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381
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382 static int
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383 bus_getstate(devctl_hdl_t dcp)
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384 {
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385 int rv;
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386 uint_t state;
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387
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388 rv = devctl_bus_getstate(dcp, &state);
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389 if (rv != -1)
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390 print_bus_state(orig_path, state);
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391
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392 return (0);
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393 }
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394
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395 /*
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396 * Only string property is supported now.
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397 * Will add more later.
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398 */
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399 static void
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400 add_prop(devctl_ddef_t ddef_hdl, char *prop_str)
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401 {
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402 char *pname, *pval, *tmp;
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403 char **strs = NULL;
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404 int nstr;
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405
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406 tmp = strchr(prop_str, '=');
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407 if (tmp == NULL) {
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408 (void) fprintf(stderr, "invalid property %s", prop_str);
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409 exit(-1);
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410 }
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411
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412 (void) printf("prop string: %s\n", prop_str);
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413 pname = prop_str;
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414 *tmp++ = '\0';
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415 if (*tmp != '"') {
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416 (void) devctl_ddef_string(ddef_hdl, pname, tmp);
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417 return;
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418 }
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419
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420 nstr = 0;
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421 while (*tmp != '\0') {
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422 pval = tmp + 1;
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423 tmp = strchr(pval, '"');
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424 if (tmp == NULL) {
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425 (void) fprintf(stderr, "missing quote in %s", tmp);
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426 exit(-1);
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|
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427 }
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|
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428 nstr++;
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429 strs = (char **)s_realloc(strs, nstr * sizeof (char *));
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430 strs[nstr - 1] = pval;
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431 *tmp++ = '\0';
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432 (void) printf("string[%d] = %s\n", nstr - 1, pval);
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|
|
433 if (*tmp)
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434 tmp = strchr(tmp, '"');
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|
435 if (tmp == NULL) {
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|
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436 (void) fprintf(stderr, "string not ending with quote");
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|
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437 exit(-1);
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|
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438 }
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|
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439 }
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|
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440
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441 (void) devctl_ddef_string_array(ddef_hdl, pname, nstr, strs);
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|
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442 free(strs);
|
|
|
443 }
|
|
|
444
|
|
|
445 static int
|
|
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446 bus_devcreate(devctl_hdl_t bus_dcp)
|
|
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447 {
|
|
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448 int rv;
|
|
|
449 char **propp = dev_props;
|
|
|
450 devctl_ddef_t ddef_hdl = NULL;
|
|
|
451 devctl_hdl_t dev_hdl = NULL;
|
|
|
452
|
|
|
453 ddef_hdl = devctl_ddef_alloc(dev_name, 0);
|
|
|
454 if (dev_props == NULL) {
|
|
|
455 (void) fprintf(stderr, "dev-create: missing device props\n");
|
|
|
456 return (-1);
|
|
|
457 }
|
|
|
458
|
|
|
459 while (*propp) {
|
|
|
460 add_prop(ddef_hdl, *propp);
|
|
|
461 propp++;
|
|
|
462 }
|
|
|
463
|
|
|
464 if (devctl_bus_dev_create(bus_dcp, ddef_hdl, 0, &dev_hdl)) {
|
|
|
465 (void) fprintf(stderr,
|
|
|
466 "bus-devcreate: failed to create device node\n");
|
|
|
467 rv = -1;
|
|
|
468 } else if (devctl_get_pathname(dev_hdl, devctl_device, MAXPATHLEN)
|
|
|
469 == NULL) {
|
|
|
470 (void) fprintf(stderr,
|
|
|
471 "bus-devcreate: failed to get device path\n");
|
|
|
472 rv = -1;
|
|
|
473 } else {
|
|
|
474 (void) printf("created device %s\n", devctl_device);
|
|
|
475 rv = 0;
|
|
|
476 }
|
|
|
477
|
|
|
478 devctl_ddef_free(ddef_hdl);
|
|
|
479 if (dev_hdl)
|
|
|
480 devctl_release(dev_hdl);
|
|
|
481
|
|
|
482 return (rv);
|
|
|
483 }
|
|
|
484
|
|
|
485 static void
|
|
|
486 print_bus_state(char *devname, uint_t state)
|
|
|
487 {
|
|
|
488 (void) printf("\t%s: ", devname);
|
|
|
489 if (state == BUS_QUIESCED)
|
|
|
490 (void) printf("Quiesced");
|
|
|
491 else if (state == BUS_ACTIVE)
|
|
|
492 (void) printf("Active");
|
|
|
493 else if (state == BUS_SHUTDOWN)
|
|
|
494 (void) printf("Shutdown");
|
|
|
495 (void) printf("\n");
|
|
|
496 }
|
|
|
497
|
|
|
498 static void
|
|
|
499 print_dev_state(char *devname, uint_t state)
|
|
|
500 {
|
|
|
501 (void) printf("\t%s: ", devname);
|
|
|
502 if (state & DEVICE_ONLINE) {
|
|
|
503 (void) printf("Online");
|
|
|
504 if (state & DEVICE_BUSY)
|
|
|
505 (void) printf(" Busy");
|
|
|
506 if (state & DEVICE_DOWN)
|
|
|
507 (void) printf(" Down");
|
|
|
508 } else {
|
|
|
509 if (state & DEVICE_OFFLINE) {
|
|
|
510 (void) printf("Offline");
|
|
|
511 if (state & DEVICE_DOWN)
|
|
|
512 (void) printf(" Down");
|
|
|
513 }
|
|
|
514 }
|
|
|
515 (void) printf("\n");
|
|
|
516 }
|
|
|
517
|
|
|
518 static void
|
|
|
519 setprogname(char *name)
|
|
|
520 {
|
|
|
521 register char *p;
|
|
|
522
|
|
|
523 if (p = strrchr(name, '/'))
|
|
|
524 progname = p + 1;
|
|
|
525 else
|
|
|
526 progname = name;
|
|
|
527 }
|
|
|
528
|
|
|
529 static struct cmds *
|
|
|
530 dc_cmd(struct cmds *cmd_tbl, char *devctl_cmdname)
|
|
|
531 {
|
|
|
532 int i;
|
|
|
533
|
|
|
534 for (i = 0; cmd_tbl[i].cmdname != NULL; i++) {
|
|
|
535 if (strcasecmp(cmd_tbl[i].cmdname, devctl_cmdname) == 0)
|
|
|
536 return (&cmd_tbl[i]);
|
|
|
537 }
|
|
|
538
|
|
|
539 return (NULL);
|
|
|
540 }
|
|
|
541
|
|
|
542 /*
|
|
|
543 * list all nexus drivers exporting the :devctl minor device
|
|
|
544 */
|
|
|
545 static void
|
|
|
546 run_list_ctlrs(void)
|
|
|
547 {
|
|
|
548 di_node_t dinode;
|
|
|
549
|
|
|
550 if ((dinode = di_init("/", DINFOSUBTREE|DINFOMINOR)) == NULL) {
|
|
|
551 (void) fprintf(stderr, "%s: di_init() failed\n",
|
|
|
552 progname);
|
|
|
553 exit(-1);
|
|
|
554 }
|
|
|
555 (void) di_walk_minor(dinode, DDI_NT_NEXUS, NULL, 0, &nexif);
|
|
|
556 di_fini(dinode);
|
|
|
557 exit(0);
|
|
|
558 }
|
|
|
559
|
|
|
560 /*ARGSUSED*/
|
|
|
561 static int
|
|
|
562 nexif(di_node_t din, di_minor_t dim, void *arg)
|
|
|
563 {
|
|
|
564 char *devname;
|
|
|
565
|
|
|
566 if ((devname = di_devfs_path(din)) != NULL) {
|
|
|
567 (void) printf("%s%d: /devices%s\n", di_driver_name(din),
|
|
|
568 di_instance(din), devname);
|
|
|
569 di_devfs_path_free(devname);
|
|
|
570 }
|
|
|
571
|
|
|
572 return (DI_WALK_CONTINUE);
|
|
|
573 }
|
|
|
574
|
|
|
575 void *
|
|
|
576 s_malloc(size_t len)
|
|
|
577 {
|
|
|
578 void *buf = malloc(len);
|
|
|
579
|
|
|
580 if (buf == NULL) {
|
|
|
581 perror("s_malloc failed");
|
|
|
582 exit(-1);
|
|
|
583 }
|
|
|
584 return (buf);
|
|
|
585 }
|
|
|
586
|
|
|
587 void *
|
|
|
588 s_realloc(void *ptr, size_t len)
|
|
|
589 {
|
|
|
590 void *buf = realloc(ptr, len);
|
|
|
591
|
|
|
592 if (buf == NULL) {
|
|
|
593 perror("s_realloc failed");
|
|
|
594 exit(-1);
|
|
|
595 }
|
|
|
596 return (buf);
|
|
|
597 }
|
|
|
598
|
|
|
599 char *
|
|
|
600 s_strdup(char *str)
|
|
|
601 {
|
|
|
602 char *buf = strdup(str);
|
|
|
603
|
|
|
604 if (buf == NULL) {
|
|
|
605 perror("s_malloc failed");
|
|
|
606 exit(-1);
|
|
|
607 }
|
|
|
608 return (buf);
|
|
|
609 }
|
