1 /* 2 * This file and its contents are supplied under the terms of the 3 * Common Development and Distribution License ("CDDL"), version 1.0. 4 * You may only use this file in accordance with the terms of version 5 * 1.0 of the CDDL. 6 * 7 * A full copy of the text of the CDDL should have accompanied this 8 * source. A copy of the CDDL is also available via the Internet at 9 * http://www.illumos.org/license/CDDL. 10 */ 11 12 /* 13 * Copyright (c) 2012, Joyent, Inc. All rights reserved. 14 */ 15 16 #include <unistd.h> 17 #include <stdio.h> 18 #include <stdlib.h> 19 #include <fcntl.h> 20 #include <string.h> 21 #include <strings.h> 22 #include <limits.h> 23 #include <alloca.h> 24 #include <errno.h> 25 #include <libnvpair.h> 26 #include <sys/types.h> 27 #include <sys/stat.h> 28 #include <sys/param.h> 29 #include <sys/fm/protocol.h> 30 #include <fm/libtopo.h> 31 #include <fm/topo_mod.h> 32 33 #include "sys/scsi/adapters/mpt_sas/mptsas_ioctl.h" 34 35 #define TOPO_METH_MPTSAS_LED_MODE_VERSION 0 36 37 static int fac_prov_mptsas_enum(topo_mod_t *, tnode_t *, const char *, 38 topo_instance_t, topo_instance_t, void *, void *); 39 40 /* 41 * mpt_sas facility provider methods 42 */ 43 static int mptsas_led_mode(topo_mod_t *, tnode_t *, topo_version_t, 44 nvlist_t *, nvlist_t **); 45 46 const topo_modops_t mptsas_ops = { fac_prov_mptsas_enum, NULL }; 47 48 const topo_modinfo_t mptsas_info = 49 { "mpt_sas facility provider", FM_FMRI_SCHEME_HC, TOPO_VERSION, 50 &mptsas_ops }; 51 52 static const topo_method_t mptsas_fac_methods[] = { 53 { "mptsas_led_mode", TOPO_PROP_METH_DESC, 54 TOPO_METH_MPTSAS_LED_MODE_VERSION, 55 TOPO_STABILITY_INTERNAL, mptsas_led_mode }, 56 { NULL } 57 }; 58 59 /*ARGSUSED*/ 60 int 61 _topo_init(topo_mod_t *mod, topo_version_t version) 62 { 63 if (getenv("TOPOFACMPTSASDEBUG") != NULL) 64 topo_mod_setdebug(mod); 65 66 return (topo_mod_register(mod, &mptsas_info, TOPO_VERSION)); 67 } 68 69 void 70 _topo_fini(topo_mod_t *mod) 71 { 72 topo_mod_unregister(mod); 73 } 74 75 static int 76 do_led_control(topo_mod_t *mod, char *devctl, uint16_t enclosure, 77 uint16_t slot, uint8_t led, uint32_t *ledmode, boolean_t set) 78 { 79 int fd; 80 mptsas_led_control_t lc; 81 82 lc.Command = set ? MPTSAS_LEDCTL_FLAG_SET : MPTSAS_LEDCTL_FLAG_GET; 83 lc.Enclosure = enclosure; 84 lc.Slot = slot; 85 lc.Led = led; 86 lc.LedStatus = *ledmode; 87 88 fd = open(devctl, O_RDWR); 89 if ((fd = open(devctl, O_RDWR)) == -1) { 90 topo_mod_dprintf(mod, "devctl open failed: %s", 91 strerror(errno)); 92 return (-1); 93 } 94 95 if (ioctl(fd, MPTIOCTL_LED_CONTROL, &lc) == -1) { 96 topo_mod_dprintf(mod, "led control ioctl failed: %s", 97 strerror(errno)); 98 (void) close(fd); 99 return (-1); 100 } 101 102 *ledmode = lc.LedStatus ? TOPO_LED_STATE_ON : TOPO_LED_STATE_OFF; 103 104 (void) close(fd); 105 return (0); 106 } 107 108 static int 109 mptsas_led_mode(topo_mod_t *mod, tnode_t *node, topo_version_t vers, 110 nvlist_t *in, nvlist_t **out) 111 { 112 int err, ret = 0; 113 tnode_t *pnode = topo_node_parent(node); 114 uint32_t type, ledmode = 0; 115 nvlist_t *pargs, *nvl; 116 char *driver = NULL, *devctl = NULL; 117 uint32_t enclosure, slot; 118 uint8_t mptsas_led; 119 boolean_t set; 120 121 if (vers > TOPO_METH_MPTSAS_LED_MODE_VERSION) 122 return (topo_mod_seterrno(mod, ETOPO_METHOD_VERNEW)); 123 124 if (topo_prop_get_string(pnode, TOPO_PGROUP_BINDING, 125 TOPO_BINDING_DRIVER, &driver, &err) != 0 || 126 strcmp("mpt_sas", driver) != 0) { 127 topo_mod_dprintf(mod, "%s: Facility driver was not mpt_sas", 128 __func__); 129 ret = topo_mod_seterrno(mod, EMOD_NVL_INVAL); 130 goto out; 131 } 132 if (topo_prop_get_uint32(node, TOPO_PGROUP_FACILITY, TOPO_FACILITY_TYPE, 133 &type, &err) != 0) { 134 topo_mod_dprintf(mod, "%s: Failed to lookup %s property " 135 "(%s)", __func__, TOPO_FACILITY_TYPE, topo_strerror(err)); 136 return (topo_mod_seterrno(mod, EMOD_NVL_INVAL)); 137 } 138 switch (type) { 139 case (TOPO_LED_TYPE_SERVICE): 140 mptsas_led = MPTSAS_LEDCTL_LED_FAIL; 141 break; 142 case (TOPO_LED_TYPE_LOCATE): 143 mptsas_led = MPTSAS_LEDCTL_LED_IDENT; 144 break; 145 case (TOPO_LED_TYPE_OK2RM): 146 mptsas_led = MPTSAS_LEDCTL_LED_OK2RM; 147 break; 148 default: 149 topo_mod_dprintf(mod, "%s: Invalid LED type: 0x%x\n", __func__, 150 type); 151 return (topo_mod_seterrno(mod, EMOD_NVL_INVAL)); 152 } 153 if (topo_prop_get_string(pnode, TOPO_PGROUP_BINDING, 154 TOPO_BINDING_DEVCTL, &devctl, &err) != 0 || 155 topo_prop_get_uint32(pnode, TOPO_PGROUP_BINDING, 156 TOPO_BINDING_ENCLOSURE, &enclosure, &err) != 0 || 157 topo_prop_get_uint32(pnode, TOPO_PGROUP_BINDING, 158 TOPO_BINDING_SLOT, &slot, &err) != 0) { 159 topo_mod_dprintf(mod, "%s: Facility was missing mpt_sas binding" 160 " properties\n", __func__); 161 ret = topo_mod_seterrno(mod, EMOD_NVL_INVAL); 162 goto out; 163 } 164 165 if ((nvlist_lookup_nvlist(in, TOPO_PROP_PARGS, &pargs) == 0) && 166 nvlist_exists(pargs, TOPO_PROP_VAL_VAL)) { 167 /* 168 * Set the LED mode 169 */ 170 set = B_TRUE; 171 if ((ret = nvlist_lookup_uint32(pargs, TOPO_PROP_VAL_VAL, 172 &ledmode)) != 0) { 173 topo_mod_dprintf(mod, "%s: Failed to lookup %s nvpair " 174 "(%s)\n", __func__, TOPO_PROP_VAL_VAL, 175 strerror(ret)); 176 ret = topo_mod_seterrno(mod, EMOD_NVL_INVAL); 177 goto out; 178 } 179 topo_mod_dprintf(mod, "%s: Setting LED mode to %s\n", __func__, 180 ledmode ? "ON" : "OFF"); 181 } else { 182 /* 183 * Get the LED mode 184 */ 185 set = B_FALSE; 186 topo_mod_dprintf(mod, "%s: Getting LED mode\n", __func__); 187 } 188 189 if (do_led_control(mod, devctl, enclosure, slot, mptsas_led, &ledmode, 190 set) != 0) { 191 topo_mod_dprintf(mod, "%s: do_led_control failed", __func__); 192 ret = topo_mod_seterrno(mod, EMOD_UNKNOWN); 193 goto out; 194 } 195 196 if (topo_mod_nvalloc(mod, &nvl, NV_UNIQUE_NAME) != 0 || 197 nvlist_add_string(nvl, TOPO_PROP_VAL_NAME, TOPO_LED_MODE) != 0 || 198 nvlist_add_uint32(nvl, TOPO_PROP_VAL_TYPE, TOPO_TYPE_UINT32) != 0 || 199 nvlist_add_uint32(nvl, TOPO_PROP_VAL_VAL, ledmode) != 0) { 200 topo_mod_dprintf(mod, "%s: Failed to allocate 'out' nvlist\n", 201 __func__); 202 nvlist_free(nvl); 203 ret = topo_mod_seterrno(mod, EMOD_NOMEM); 204 goto out; 205 } 206 *out = nvl; 207 208 out: 209 if (driver != NULL) 210 topo_mod_strfree(mod, driver); 211 if (devctl != NULL) 212 topo_mod_strfree(mod, devctl); 213 return (ret); 214 } 215 216 /*ARGSUSED*/ 217 static int 218 fac_prov_mptsas_enum(topo_mod_t *mod, tnode_t *rnode, const char *name, 219 topo_instance_t min, topo_instance_t max, void *arg, void *unused) 220 { 221 if (topo_node_flags(rnode) == TOPO_NODE_FACILITY) { 222 if (topo_method_register(mod, rnode, mptsas_fac_methods) != 0) { 223 topo_mod_dprintf(mod, "%s: topo_method_register() " 224 "failed: %s", __func__, topo_mod_errmsg(mod)); 225 return (-1); 226 } 227 return (0); 228 } 229 230 topo_mod_dprintf(mod, "%s: unexpected node flags %x", __func__, 231 topo_node_flags(rnode)); 232 return (-1); 233 }