usr/src/lib/cfgadm_plugins/scsi/common/cfga_scsi.h

   1 /*
   2  * CDDL HEADER START
   3  *
   4  * The contents of this file are subject to the terms of the
   5  * Common Development and Distribution License (the "License").
   6  * You may not use this file except in compliance with the License.
   7  *
   8  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
   9  * or http://www.opensolaris.org/os/licensing.
  10  * See the License for the specific language governing permissions
  11  * and limitations under the License.
  12  *
  13  * When distributing Covered Code, include this CDDL HEADER in each
  14  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
  15  * If applicable, add the following below this CDDL HEADER, with the
  16  * fields enclosed by brackets "[]" replaced with your own identifying
  17  * information: Portions Copyright [yyyy] [name of copyright owner]
  18  *
  19  * CDDL HEADER END
  20  */
  21
  22 /*
  23  * Copyright 2009 Sun Microsystems, Inc.  All rights reserved.
  24  * Use is subject to license terms.
  25  */
  26
  27 #ifndef _CFGA_SCSI_H
  28 #define _CFGA_SCSI_H
  29
  30 #ifdef __cplusplus
  31 extern "C" {
  32 #endif
  33
  34 #include <stddef.h>
  35 #include <locale.h>
  36 #include <ctype.h>
  37 #include <stdio.h>
  38 #include <stdlib.h>
  39 #include <string.h>
  40 #include <fcntl.h>
  41 #include <unistd.h>
  42 #include <errno.h>
  43 #include <locale.h>
  44 #include <langinfo.h>
  45 #include <time.h>
  46 #include <stdarg.h>
  47 #include <sys/types.h>
  48 #include <sys/ioctl.h>
  49 #include <sys/dditypes.h>
  50 #include <sys/modctl.h>
  51 #include <libdevinfo.h>
  52 #include <libdevice.h>
  53 #include <librcm.h>
  54 #include <dirent.h>
  55 #include <strings.h>
  56
  57 #include <sys/ioctl.h>
  58 #include <sys/byteorder.h>
  59 #include <sys/scsi/scsi.h>
  60 #include <strings.h>
  61 #include <sys/vfstab.h>
  62 #include <sys/stat.h>
  63 #include <sys/mnttab.h>
  64 #include <sys/wait.h>
  65 #include <signal.h>
  66
  67 #include <sys/uio.h>
  68 #include <sys/param.h>
  69
  70 #include <synch.h>
  71 #include <thread.h>
  72
  73 #include <limits.h>
  74 #include <ftw.h>
  75
  76 #define CFGA_PLUGIN_LIB
  77 #include <config_admin.h>
  78
  79 #if     !defined(DEBUG)
  80 #define NDEBUG  1
  81 #else
  82 #undef  NDEBUG
  83 #endif
  84
  85 #include <assert.h>
  86
  87 /* Return/error codes */
  88 typedef enum {
  89         SCFGA_ERR = -1,
  90         SCFGA_LIB_ERR = 0,
  91         SCFGA_OK,
  92         SCFGA_NACK,
  93         SCFGA_BUSY,
  94         SCFGA_SYSTEM_BUSY,
  95         SCFGA_APID_NOEXIST,
  96         SCFGA_OPNOTSUPP,
  97         SCFGA_PRIV,
  98         SCFGA_UNLOCKED,
  99         SCFGA_NO_REC,
 100         SCFGA_OP_INTR,
 101         SCFGA_DB_INVAL,
 102         SCFGA_UNKNOWN_ERR
 103 } scfga_ret_t;
 104
 105 /* Commands used internally */
 106 typedef enum {
 107         SCFGA_INVAL_CMD = -1,
 108         SCFGA_DEV_OP = 0,
 109         SCFGA_BUS_OP,
 110         SCFGA_STAT_DEV,
 111         SCFGA_STAT_BUS,
 112         SCFGA_STAT_ALL,
 113         SCFGA_GET_DEVPATH,
 114         SCFGA_INSERT_DEV,
 115         SCFGA_REMOVE_DEV,
 116         SCFGA_REPLACE_DEV,
 117         SCFGA_WALK_NODE,
 118         SCFGA_WALK_MINOR,
 119         SCFGA_WALK_PATH,
 120         SCFGA_BUS_QUIESCE,
 121         SCFGA_BUS_UNQUIESCE,
 122         SCFGA_BUS_GETSTATE,
 123         SCFGA_DEV_GETSTATE,
 124         SCFGA_BUS_CONFIGURE,
 125         SCFGA_BUS_UNCONFIGURE,
 126         SCFGA_DEV_CONFIGURE,
 127         SCFGA_DEV_UNCONFIGURE,
 128         SCFGA_DEV_REMOVE,
 129         SCFGA_LED_DEV,
 130         SCFGA_LOCATOR_DEV,
 131         SCFGA_RESET_DEV,
 132         SCFGA_RESET_BUS,
 133         SCFGA_RESET_ALL,
 134         SCFGA_READ,
 135         SCFGA_WRITE
 136 } scfga_cmd_t;
 137
 138 typedef enum {
 139         SCFGA_TERMINATE = 0,
 140         SCFGA_CONTINUE
 141 } scfga_recur_t;
 142
 143 typedef enum {
 144         NODYNCOMP = 1,
 145         DEV_APID,
 146         PATH_APID
 147 } dyncomp_t;
 148
 149
 150 /* Structures for tree walking code */
 151
 152 typedef struct {
 153         uint_t flags;
 154         int (*fcn)(di_node_t node, void *argp);
 155 } walk_node_t;
 156
 157 typedef struct {
 158         const char *nodetype;
 159         int (*fcn)(di_node_t node, di_minor_t minor, void *argp);
 160 } walk_minor_t;
 161
 162 typedef union {
 163         walk_node_t     node_args;
 164         walk_minor_t    minor_args;
 165 } walkarg_t;
 166
 167 typedef struct {
 168         char *phys;
 169         char *log;
 170         scfga_ret_t ret;
 171         int match_minor;
 172         int l_errno;
 173 } pathm_t;
 174
 175 typedef struct ldata_list {
 176         cfga_list_data_t ldata;
 177         struct ldata_list *next;
 178 } ldata_list_t;
 179
 180 typedef struct {
 181         struct cfga_confirm     *confp;
 182         struct cfga_msg         *msgp;
 183 } prompt_t;
 184
 185 typedef struct {
 186         char            *hba_phys;
 187         char            *dyncomp;
 188         dyncomp_t       dyntype;    /* is pathinfo or dev apid? */
 189         char            *path;      /* for apid with device dyn comp. */
 190         uint_t          flags;
 191 } apid_t;
 192
 193 /* Private hardware options */
 194 #define OPT_DISABLE_RCM "disable_rcm"
 195 #define OPT_USE_DIFORCE "use_diforce"
 196
 197 /* apid_t flags */
 198 #define FLAG_DISABLE_RCM        0x01
 199 #define FLAG_USE_DIFORCE        0x02
 200
 201 /* internal use for handling pathinfo */
 202 #define FLAG_CLIENT_DEV         0x04
 203
 204 /* Message ids */
 205 typedef enum {
 206
 207 /* ERRORS */
 208 ERR_UNKNOWN = -1,
 209 ERR_OP_FAILED,
 210 ERR_CMD_INVAL,
 211 ERR_NOT_BUSAPID,
 212 ERR_APID_INVAL,
 213 ERR_NOT_BUSOP,
 214 ERR_NOT_DEVOP,
 215 ERR_UNAVAILABLE,
 216 ERR_CTRLR_CRIT,
 217 ERR_BUS_GETSTATE,
 218 ERR_BUS_NOTCONNECTED,
 219 ERR_BUS_CONNECTED,
 220 ERR_BUS_QUIESCE,
 221 ERR_BUS_UNQUIESCE,
 222 ERR_BUS_CONFIGURE,
 223 ERR_BUS_UNCONFIGURE,
 224 ERR_DEV_CONFIGURE,
 225 ERR_DEV_RECONFIGURE,
 226 ERR_DEV_UNCONFIGURE,
 227 ERR_DEV_REMOVE,
 228 ERR_DEV_REPLACE,
 229 ERR_DEV_INSERT,
 230 ERR_DEV_GETSTATE,
 231 ERR_RESET,
 232 ERR_LIST,
 233 ERR_MAYBE_BUSY,
 234 ERR_BUS_DEV_MISMATCH,
 235 ERR_VAR_RUN,
 236 ERR_FORK,
 237
 238 /* Errors with arguments */
 239 ERRARG_OPT_INVAL,
 240 ERRARG_HWCMD_INVAL,
 241 ERRARG_DEVINFO,
 242 ERRARG_OPEN,
 243 ERRARG_LOCK,
 244 ERRARG_QUIESCE_LOCK,
 245
 246 /* RCM Errors */
 247 ERR_RCM_HANDLE,
 248 ERRARG_RCM_SUSPEND,
 249 ERRARG_RCM_RESUME,
 250 ERRARG_RCM_OFFLINE,
 251 ERRARG_RCM_CLIENT_OFFLINE,
 252 ERRARG_RCM_ONLINE,
 253 ERRARG_RCM_REMOVE,
 254
 255 /* Commands */
 256 CMD_INSERT_DEV,
 257 CMD_REMOVE_DEV,
 258 CMD_REPLACE_DEV,
 259 CMD_LED_DEV,
 260 CMD_LOCATOR_DEV,
 261 CMD_RESET_DEV,
 262 CMD_RESET_BUS,
 263 CMD_RESET_ALL,
 264
 265 /* help messages */
 266 MSG_HELP_HDR,
 267 MSG_HELP_USAGE,
 268
 269 /* Hotplug messages */
 270 MSG_INSDEV,
 271 MSG_RMDEV,
 272 MSG_REPLDEV,
 273 MSG_WAIT_LOCK,
 274
 275 /* Hotplugging confirmation prompts */
 276 CONF_QUIESCE_1,
 277 CONF_QUIESCE_2,
 278 CONF_UNQUIESCE,
 279 CONF_NO_QUIESCE,
 280
 281 /* Misc. */
 282 WARN_DISCONNECT,
 283
 284 /* HDD led/locator messages */
 285 MSG_LED_HDR,
 286 MSG_MISSING_LED_NAME,
 287 MSG_MISSING_LED_MODE
 288 } msgid_t;
 289
 290 typedef enum {
 291         LED_STR_FAULT,
 292         LED_STR_POWER,
 293         LED_STR_ATTN,
 294         LED_STR_ACTIVE,
 295         LED_STR_LOCATOR
 296 } led_strid_t;
 297
 298 typedef enum {
 299         LED_MODE_OFF,
 300         LED_MODE_ON,
 301         LED_MODE_BLINK,
 302         LED_MODE_FAULTED,
 303         LED_MODE_UNK
 304 } led_modeid_t;
 305
 306
 307 typedef struct {
 308         msgid_t str_id;
 309         scfga_cmd_t cmd;
 310         scfga_ret_t (*fcn)(const char *, scfga_cmd_t, apid_t *, prompt_t *,
 311             cfga_flags_t, char **);
 312 } hw_cmd_t;
 313
 314 typedef struct {
 315         msgid_t msgid;
 316         int nargs;              /* Number of arguments following msgid */
 317         int intl;               /* Flag: if 1, internationalize */
 318         const char *msgstr;
 319 } msgcvt_t;
 320
 321
 322 #define SLASH                   "/"
 323 #define CFGA_DEV_DIR            "/dev/cfg"
 324 #define DEV_DIR                 "/dev"
 325 #define DEVICES_DIR             "/devices"
 326 #define DEV_DSK                 "/dev/dsk"
 327 #define DEV_RDSK                "/dev/rdsk"
 328 #define DEV_RMT                 "/dev/rmt"
 329 #define DSK_DIR                 "dsk"
 330 #define RDSK_DIR                "rdsk"
 331 #define RMT_DIR                 "rmt"
 332
 333
 334 #define DYN_SEP                 "::"
 335 #define MINOR_SEP               ":"
 336 #define PATH_APID_DYN_SEP       ","
 337
 338 #define S_FREE(x)       (((x) != NULL) ? (free(x), (x) = NULL) : (void *)0)
 339 #define S_STR(x)        (((x) == NULL) ? "" : (x))
 340
 341
 342 #define IS_STUB_NODE(s) (di_instance(s) == -1 &&        \
 343                             di_nodeid(s) == (DI_PROM_NODEID))
 344
 345 #define GET_MSG_STR(i)          (str_tbl[msg_idx(i)].msgstr)
 346
 347 #define GET_DYN(a)      (((a) != NULL) ? strstr((a), DYN_SEP) : (void *)0)
 348
 349 /*
 350  * The following macro removes the separator from the dynamic component.
 351  */
 352 #define DYN_TO_DYNCOMP(a)       ((a) + strlen(DYN_SEP))
 353
 354 extern int _scfga_debug;
 355
 356 /*
 357  * Tracing/debugging macros
 358  */
 359 #define CFGA_TRACE1(args)       (void) ((_scfga_debug >= 1) ? fprintf args : 0)
 360 #define CFGA_TRACE2(args)       (void) ((_scfga_debug >= 2) ? fprintf args : 0)
 361 #define CFGA_TRACE3(args)       (void) ((_scfga_debug >= 3) ? fprintf args : 0)
 362
 363 /* Function prototypes */
 364
 365 /* bus/device ctl routines */
 366 scfga_ret_t bus_change_state(cfga_cmd_t state_change_cmd,
 367     apid_t *apidp, struct cfga_confirm *confp, cfga_flags_t flags,
 368     char **errstring);
 369 scfga_ret_t dev_change_state(cfga_cmd_t state_change_cmd,
 370     apid_t *apidp, cfga_flags_t flags, char **errstring);
 371 scfga_ret_t dev_insert(const char *func, scfga_cmd_t cmd, apid_t *apidp,
 372     prompt_t *argsp, cfga_flags_t flags, char **errstring);
 373 scfga_ret_t dev_replace(const char *func, scfga_cmd_t cmd, apid_t *apidp,
 374     prompt_t *argsp, cfga_flags_t flags, char **errstring);
 375 scfga_ret_t dev_remove(const char *func, scfga_cmd_t cmd, apid_t *apidp,
 376     prompt_t *argsp, cfga_flags_t flags, char **errstring);
 377 scfga_ret_t reset_common(const char *func, scfga_cmd_t cmd, apid_t *apidp,
 378     prompt_t *argsp, cfga_flags_t flags, char **errstring);
 379 scfga_ret_t dev_led(const char *func, scfga_cmd_t cmd, apid_t *apidp,
 380     prompt_t *argsp, cfga_flags_t flags, char **errstring);
 381 scfga_ret_t plat_dev_led(const char *func, scfga_cmd_t cmd, apid_t *apidp,
 382     prompt_t *argsp, cfga_flags_t flags, char **errstring);
 383
 384
 385 /* List related routines */
 386 scfga_ret_t do_list(apid_t *apidp, scfga_cmd_t cmd,
 387     ldata_list_t **llpp, int *nelem, char **errstring);
 388 scfga_ret_t list_ext_postprocess(ldata_list_t **llpp, int nelem,
 389     cfga_list_data_t **ap_id_list, int *nlistp, char **errstring);
 390 int stat_path_info(di_node_t root, void *arg, int *l_errnop);
 391
 392
 393 /* Conversion routines */
 394 scfga_ret_t make_hba_logid(const char *hba_phys, char **hba_logpp,
 395     int *l_errnop);
 396 scfga_ret_t apid_to_path(const char *hba_phys, const char *dyncomp,
 397     char **pathpp, int *l_errnop);
 398 scfga_ret_t make_dyncomp(di_node_t node, const char *physpath,
 399     char **dyncompp, int *l_errnop);
 400 scfga_ret_t make_path_dyncomp(di_path_t path, char **dyncomp, int *l_errnop);
 401
 402
 403 /* RCM routines */
 404 scfga_ret_t scsi_rcm_suspend(char **rsrclist, char **errstring,
 405     cfga_flags_t flags, int pflag);
 406 scfga_ret_t scsi_rcm_resume(char **rsrclist, char **errstring,
 407     cfga_flags_t flags, int pflag);
 408 scfga_ret_t scsi_rcm_offline(char **rsrclist, char **errstring,
 409     cfga_flags_t flags);
 410 scfga_ret_t scsi_rcm_online(char **rsrclist, char **errstring,
 411     cfga_flags_t flags);
 412 scfga_ret_t scsi_rcm_remove(char **rsrclist, char **errstring,
 413     cfga_flags_t flags);
 414
 415
 416 /* Utility routines */
 417 scfga_ret_t physpath_to_devlink(char *physpath, char **linkpp, int *l_errnop,
 418     int match_minor);
 419 scfga_ret_t apidt_create(const char *ap_id, apid_t *apidp,
 420     char **errstring);
 421 void apidt_free(apid_t *apidp);
 422 cfga_err_t err_cvt(scfga_ret_t err);
 423 void list_free(ldata_list_t **llpp);
 424 int known_state(di_node_t node);
 425 scfga_ret_t devctl_cmd(const char *ap_id, scfga_cmd_t cmd,
 426     uint_t *statep, int *l_errnop);
 427 scfga_ret_t path_apid_state_change(apid_t *apidp, scfga_cmd_t cmd,
 428     cfga_flags_t flags, char **errstring, int *l_errnop, msgid_t errid);
 429 scfga_ret_t invoke_cmd(const char *func, apid_t *apidt, prompt_t *prp,
 430     cfga_flags_t flags, char **errstring);
 431
 432 void cfga_err(char **errstring, int use_errno, ...);
 433 void cfga_msg(struct cfga_msg *msgp, ...);
 434 void cfga_led_msg(struct cfga_msg *msgp, apid_t *apidp, led_strid_t,
 435     led_modeid_t);
 436 char *cfga_str(int append_newline, ...);
 437 int msg_idx(msgid_t msgid);
 438 scfga_ret_t walk_tree(const char *physpath, void *arg, uint_t init_flags,
 439     walkarg_t *up, scfga_cmd_t cmd, int *l_errnop);
 440 int hba_dev_cmp(const char *hba, const char *dev);
 441 int dev_cmp(const char *dev1, const char *dev2, int match_minor);
 442
 443 extern msgcvt_t str_tbl[];
 444
 445 #ifdef __cplusplus
 446 }
 447 #endif
 448
 449 #endif /* _CFGA_SCSI_H */