devlink/health.c

   1 // SPDX-License-Identifier: GPL-2.0-or-later
   2 /*
   3  * Copyright (c) 2016 Mellanox Technologies. All rights reserved.
   4  * Copyright (c) 2016 Jiri Pirko <jiri@mellanox.com>
   5  */
   6
   7 #include <net/genetlink.h>
   8 #include <net/sock.h>
   9 #include <trace/events/devlink.h>
  10 #include "devl_internal.h"
  11
  12 struct devlink_fmsg_item {
  13         struct list_head list;
  14         int attrtype;
  15         u8 nla_type;
  16         u16 len;
  17         int value[];
  18 };
  19
  20 struct devlink_fmsg {
  21         struct list_head item_list;
  22         int err; /* first error encountered on some devlink_fmsg_XXX() call */
  23         bool putting_binary; /* This flag forces enclosing of binary data
  24                               * in an array brackets. It forces using
  25                               * of designated API:
  26                               * devlink_fmsg_binary_pair_nest_start()
  27                               * devlink_fmsg_binary_pair_nest_end()
  28                               */
  29 };
  30
  31 static struct devlink_fmsg *devlink_fmsg_alloc(void)
  32 {
  33         struct devlink_fmsg *fmsg;
  34
  35         fmsg = kzalloc(sizeof(*fmsg), GFP_KERNEL);
  36         if (!fmsg)
  37                 return NULL;
  38
  39         INIT_LIST_HEAD(&fmsg->item_list);
  40
  41         return fmsg;
  42 }
  43
  44 static void devlink_fmsg_free(struct devlink_fmsg *fmsg)
  45 {
  46         struct devlink_fmsg_item *item, *tmp;
  47
  48         list_for_each_entry_safe(item, tmp, &fmsg->item_list, list) {
  49                 list_del(&item->list);
  50                 kfree(item);
  51         }
  52         kfree(fmsg);
  53 }
  54
  55 struct devlink_health_reporter {
  56         struct list_head list;
  57         void *priv;
  58         const struct devlink_health_reporter_ops *ops;
  59         struct devlink *devlink;
  60         struct devlink_port *devlink_port;
  61         struct devlink_fmsg *dump_fmsg;
  62         u64 graceful_period;
  63         bool auto_recover;
  64         bool auto_dump;
  65         u8 health_state;
  66         u64 dump_ts;
  67         u64 dump_real_ts;
  68         u64 error_count;
  69         u64 recovery_count;
  70         u64 last_recovery_ts;
  71 };
  72
  73 void *
  74 devlink_health_reporter_priv(struct devlink_health_reporter *reporter)
  75 {
  76         return reporter->priv;
  77 }
  78 EXPORT_SYMBOL_GPL(devlink_health_reporter_priv);
  79
  80 static struct devlink_health_reporter *
  81 __devlink_health_reporter_find_by_name(struct list_head *reporter_list,
  82                                        const char *reporter_name)
  83 {
  84         struct devlink_health_reporter *reporter;
  85
  86         list_for_each_entry(reporter, reporter_list, list)
  87                 if (!strcmp(reporter->ops->name, reporter_name))
  88                         return reporter;
  89         return NULL;
  90 }
  91
  92 static struct devlink_health_reporter *
  93 devlink_health_reporter_find_by_name(struct devlink *devlink,
  94                                      const char *reporter_name)
  95 {
  96         return __devlink_health_reporter_find_by_name(&devlink->reporter_list,
  97                                                       reporter_name);
  98 }
  99
 100 static struct devlink_health_reporter *
 101 devlink_port_health_reporter_find_by_name(struct devlink_port *devlink_port,
 102                                           const char *reporter_name)
 103 {
 104         return __devlink_health_reporter_find_by_name(&devlink_port->reporter_list,
 105                                                       reporter_name);
 106 }
 107
 108 static struct devlink_health_reporter *
 109 __devlink_health_reporter_create(struct devlink *devlink,
 110                                  const struct devlink_health_reporter_ops *ops,
 111                                  u64 graceful_period, void *priv)
 112 {
 113         struct devlink_health_reporter *reporter;
 114
 115         if (WARN_ON(graceful_period && !ops->recover))
 116                 return ERR_PTR(-EINVAL);
 117
 118         reporter = kzalloc(sizeof(*reporter), GFP_KERNEL);
 119         if (!reporter)
 120                 return ERR_PTR(-ENOMEM);
 121
 122         reporter->priv = priv;
 123         reporter->ops = ops;
 124         reporter->devlink = devlink;
 125         reporter->graceful_period = graceful_period;
 126         reporter->auto_recover = !!ops->recover;
 127         reporter->auto_dump = !!ops->dump;
 128         return reporter;
 129 }
 130
 131 /**
 132  * devl_port_health_reporter_create() - create devlink health reporter for
 133  *                                      specified port instance
 134  *
 135  * @port: devlink_port to which health reports will relate
 136  * @ops: devlink health reporter ops
 137  * @graceful_period: min time (in msec) between recovery attempts
 138  * @priv: driver priv pointer
 139  */
 140 struct devlink_health_reporter *
 141 devl_port_health_reporter_create(struct devlink_port *port,
 142                                  const struct devlink_health_reporter_ops *ops,
 143                                  u64 graceful_period, void *priv)
 144 {
 145         struct devlink_health_reporter *reporter;
 146
 147         devl_assert_locked(port->devlink);
 148
 149         if (__devlink_health_reporter_find_by_name(&port->reporter_list,
 150                                                    ops->name))
 151                 return ERR_PTR(-EEXIST);
 152
 153         reporter = __devlink_health_reporter_create(port->devlink, ops,
 154                                                     graceful_period, priv);
 155         if (IS_ERR(reporter))
 156                 return reporter;
 157
 158         reporter->devlink_port = port;
 159         list_add_tail(&reporter->list, &port->reporter_list);
 160         return reporter;
 161 }
 162 EXPORT_SYMBOL_GPL(devl_port_health_reporter_create);
 163
 164 struct devlink_health_reporter *
 165 devlink_port_health_reporter_create(struct devlink_port *port,
 166                                     const struct devlink_health_reporter_ops *ops,
 167                                     u64 graceful_period, void *priv)
 168 {
 169         struct devlink_health_reporter *reporter;
 170         struct devlink *devlink = port->devlink;
 171
 172         devl_lock(devlink);
 173         reporter = devl_port_health_reporter_create(port, ops,
 174                                                     graceful_period, priv);
 175         devl_unlock(devlink);
 176         return reporter;
 177 }
 178 EXPORT_SYMBOL_GPL(devlink_port_health_reporter_create);
 179
 180 /**
 181  * devl_health_reporter_create - create devlink health reporter
 182  *
 183  * @devlink: devlink instance which the health reports will relate
 184  * @ops: devlink health reporter ops
 185  * @graceful_period: min time (in msec) between recovery attempts
 186  * @priv: driver priv pointer
 187  */
 188 struct devlink_health_reporter *
 189 devl_health_reporter_create(struct devlink *devlink,
 190                             const struct devlink_health_reporter_ops *ops,
 191                             u64 graceful_period, void *priv)
 192 {
 193         struct devlink_health_reporter *reporter;
 194
 195         devl_assert_locked(devlink);
 196
 197         if (devlink_health_reporter_find_by_name(devlink, ops->name))
 198                 return ERR_PTR(-EEXIST);
 199
 200         reporter = __devlink_health_reporter_create(devlink, ops,
 201                                                     graceful_period, priv);
 202         if (IS_ERR(reporter))
 203                 return reporter;
 204
 205         list_add_tail(&reporter->list, &devlink->reporter_list);
 206         return reporter;
 207 }
 208 EXPORT_SYMBOL_GPL(devl_health_reporter_create);
 209
 210 struct devlink_health_reporter *
 211 devlink_health_reporter_create(struct devlink *devlink,
 212                                const struct devlink_health_reporter_ops *ops,
 213                                u64 graceful_period, void *priv)
 214 {
 215         struct devlink_health_reporter *reporter;
 216
 217         devl_lock(devlink);
 218         reporter = devl_health_reporter_create(devlink, ops,
 219                                                graceful_period, priv);
 220         devl_unlock(devlink);
 221         return reporter;
 222 }
 223 EXPORT_SYMBOL_GPL(devlink_health_reporter_create);
 224
 225 static void
 226 devlink_health_reporter_free(struct devlink_health_reporter *reporter)
 227 {
 228         if (reporter->dump_fmsg)
 229                 devlink_fmsg_free(reporter->dump_fmsg);
 230         kfree(reporter);
 231 }
 232
 233 /**
 234  * devl_health_reporter_destroy() - destroy devlink health reporter
 235  *
 236  * @reporter: devlink health reporter to destroy
 237  */
 238 void
 239 devl_health_reporter_destroy(struct devlink_health_reporter *reporter)
 240 {
 241         devl_assert_locked(reporter->devlink);
 242
 243         list_del(&reporter->list);
 244         devlink_health_reporter_free(reporter);
 245 }
 246 EXPORT_SYMBOL_GPL(devl_health_reporter_destroy);
 247
 248 void
 249 devlink_health_reporter_destroy(struct devlink_health_reporter *reporter)
 250 {
 251         struct devlink *devlink = reporter->devlink;
 252
 253         devl_lock(devlink);
 254         devl_health_reporter_destroy(reporter);
 255         devl_unlock(devlink);
 256 }
 257 EXPORT_SYMBOL_GPL(devlink_health_reporter_destroy);
 258
 259 static int
 260 devlink_nl_health_reporter_fill(struct sk_buff *msg,
 261                                 struct devlink_health_reporter *reporter,
 262                                 enum devlink_command cmd, u32 portid,
 263                                 u32 seq, int flags)
 264 {
 265         struct devlink *devlink = reporter->devlink;
 266         struct nlattr *reporter_attr;
 267         void *hdr;
 268
 269         hdr = genlmsg_put(msg, portid, seq, &devlink_nl_family, flags, cmd);
 270         if (!hdr)
 271                 return -EMSGSIZE;
 272
 273         if (devlink_nl_put_handle(msg, devlink))
 274                 goto genlmsg_cancel;
 275
 276         if (reporter->devlink_port) {
 277                 if (nla_put_u32(msg, DEVLINK_ATTR_PORT_INDEX, reporter->devlink_port->index))
 278                         goto genlmsg_cancel;
 279         }
 280         reporter_attr = nla_nest_start_noflag(msg,
 281                                               DEVLINK_ATTR_HEALTH_REPORTER);
 282         if (!reporter_attr)
 283                 goto genlmsg_cancel;
 284         if (nla_put_string(msg, DEVLINK_ATTR_HEALTH_REPORTER_NAME,
 285                            reporter->ops->name))
 286                 goto reporter_nest_cancel;
 287         if (nla_put_u8(msg, DEVLINK_ATTR_HEALTH_REPORTER_STATE,
 288                        reporter->health_state))
 289                 goto reporter_nest_cancel;
 290         if (nla_put_u64_64bit(msg, DEVLINK_ATTR_HEALTH_REPORTER_ERR_COUNT,
 291                               reporter->error_count, DEVLINK_ATTR_PAD))
 292                 goto reporter_nest_cancel;
 293         if (nla_put_u64_64bit(msg, DEVLINK_ATTR_HEALTH_REPORTER_RECOVER_COUNT,
 294                               reporter->recovery_count, DEVLINK_ATTR_PAD))
 295                 goto reporter_nest_cancel;
 296         if (reporter->ops->recover &&
 297             nla_put_u64_64bit(msg, DEVLINK_ATTR_HEALTH_REPORTER_GRACEFUL_PERIOD,
 298                               reporter->graceful_period,
 299                               DEVLINK_ATTR_PAD))
 300                 goto reporter_nest_cancel;
 301         if (reporter->ops->recover &&
 302             nla_put_u8(msg, DEVLINK_ATTR_HEALTH_REPORTER_AUTO_RECOVER,
 303                        reporter->auto_recover))
 304                 goto reporter_nest_cancel;
 305         if (reporter->dump_fmsg &&
 306             nla_put_u64_64bit(msg, DEVLINK_ATTR_HEALTH_REPORTER_DUMP_TS,
 307                               jiffies_to_msecs(reporter->dump_ts),
 308                               DEVLINK_ATTR_PAD))
 309                 goto reporter_nest_cancel;
 310         if (reporter->dump_fmsg &&
 311             nla_put_u64_64bit(msg, DEVLINK_ATTR_HEALTH_REPORTER_DUMP_TS_NS,
 312                               reporter->dump_real_ts, DEVLINK_ATTR_PAD))
 313                 goto reporter_nest_cancel;
 314         if (reporter->ops->dump &&
 315             nla_put_u8(msg, DEVLINK_ATTR_HEALTH_REPORTER_AUTO_DUMP,
 316                        reporter->auto_dump))
 317                 goto reporter_nest_cancel;
 318
 319         nla_nest_end(msg, reporter_attr);
 320         genlmsg_end(msg, hdr);
 321         return 0;
 322
 323 reporter_nest_cancel:
 324         nla_nest_cancel(msg, reporter_attr);
 325 genlmsg_cancel:
 326         genlmsg_cancel(msg, hdr);
 327         return -EMSGSIZE;
 328 }
 329
 330 static struct devlink_health_reporter *
 331 devlink_health_reporter_get_from_attrs(struct devlink *devlink,
 332                                        struct nlattr **attrs)
 333 {
 334         struct devlink_port *devlink_port;
 335         char *reporter_name;
 336
 337         if (!attrs[DEVLINK_ATTR_HEALTH_REPORTER_NAME])
 338                 return NULL;
 339
 340         reporter_name = nla_data(attrs[DEVLINK_ATTR_HEALTH_REPORTER_NAME]);
 341         devlink_port = devlink_port_get_from_attrs(devlink, attrs);
 342         if (IS_ERR(devlink_port))
 343                 return devlink_health_reporter_find_by_name(devlink,
 344                                                             reporter_name);
 345         else
 346                 return devlink_port_health_reporter_find_by_name(devlink_port,
 347                                                                  reporter_name);
 348 }
 349
 350 static struct devlink_health_reporter *
 351 devlink_health_reporter_get_from_info(struct devlink *devlink,
 352                                       struct genl_info *info)
 353 {
 354         return devlink_health_reporter_get_from_attrs(devlink, info->attrs);
 355 }
 356
 357 int devlink_nl_health_reporter_get_doit(struct sk_buff *skb,
 358                                         struct genl_info *info)
 359 {
 360         struct devlink *devlink = info->user_ptr[0];
 361         struct devlink_health_reporter *reporter;
 362         struct sk_buff *msg;
 363         int err;
 364
 365         reporter = devlink_health_reporter_get_from_info(devlink, info);
 366         if (!reporter)
 367                 return -EINVAL;
 368
 369         msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
 370         if (!msg)
 371                 return -ENOMEM;
 372
 373         err = devlink_nl_health_reporter_fill(msg, reporter,
 374                                               DEVLINK_CMD_HEALTH_REPORTER_GET,
 375                                               info->snd_portid, info->snd_seq,
 376                                               0);
 377         if (err) {
 378                 nlmsg_free(msg);
 379                 return err;
 380         }
 381
 382         return genlmsg_reply(msg, info);
 383 }
 384
 385 static int devlink_nl_health_reporter_get_dump_one(struct sk_buff *msg,
 386                                                    struct devlink *devlink,
 387                                                    struct netlink_callback *cb,
 388                                                    int flags)
 389 {
 390         struct devlink_nl_dump_state *state = devlink_dump_state(cb);
 391         const struct genl_info *info = genl_info_dump(cb);
 392         struct devlink_health_reporter *reporter;
 393         unsigned long port_index_end = ULONG_MAX;
 394         struct nlattr **attrs = info->attrs;
 395         unsigned long port_index_start = 0;
 396         struct devlink_port *port;
 397         unsigned long port_index;
 398         int idx = 0;
 399         int err;
 400
 401         if (attrs && attrs[DEVLINK_ATTR_PORT_INDEX]) {
 402                 port_index_start = nla_get_u32(attrs[DEVLINK_ATTR_PORT_INDEX]);
 403                 port_index_end = port_index_start;
 404                 flags |= NLM_F_DUMP_FILTERED;
 405                 goto per_port_dump;
 406         }
 407
 408         list_for_each_entry(reporter, &devlink->reporter_list, list) {
 409                 if (idx < state->idx) {
 410                         idx++;
 411                         continue;
 412                 }
 413                 err = devlink_nl_health_reporter_fill(msg, reporter,
 414                                                       DEVLINK_CMD_HEALTH_REPORTER_GET,
 415                                                       NETLINK_CB(cb->skb).portid,
 416                                                       cb->nlh->nlmsg_seq,
 417                                                       flags);
 418                 if (err) {
 419                         state->idx = idx;
 420                         return err;
 421                 }
 422                 idx++;
 423         }
 424 per_port_dump:
 425         xa_for_each_range(&devlink->ports, port_index, port,
 426                           port_index_start, port_index_end) {
 427                 list_for_each_entry(reporter, &port->reporter_list, list) {
 428                         if (idx < state->idx) {
 429                                 idx++;
 430                                 continue;
 431                         }
 432                         err = devlink_nl_health_reporter_fill(msg, reporter,
 433                                                               DEVLINK_CMD_HEALTH_REPORTER_GET,
 434                                                               NETLINK_CB(cb->skb).portid,
 435                                                               cb->nlh->nlmsg_seq,
 436                                                               flags);
 437                         if (err) {
 438                                 state->idx = idx;
 439                                 return err;
 440                         }
 441                         idx++;
 442                 }
 443         }
 444
 445         return 0;
 446 }
 447
 448 int devlink_nl_health_reporter_get_dumpit(struct sk_buff *skb,
 449                                           struct netlink_callback *cb)
 450 {
 451         return devlink_nl_dumpit(skb, cb,
 452                                  devlink_nl_health_reporter_get_dump_one);
 453 }
 454
 455 int devlink_nl_health_reporter_set_doit(struct sk_buff *skb,
 456                                         struct genl_info *info)
 457 {
 458         struct devlink *devlink = info->user_ptr[0];
 459         struct devlink_health_reporter *reporter;
 460
 461         reporter = devlink_health_reporter_get_from_info(devlink, info);
 462         if (!reporter)
 463                 return -EINVAL;
 464
 465         if (!reporter->ops->recover &&
 466             (info->attrs[DEVLINK_ATTR_HEALTH_REPORTER_GRACEFUL_PERIOD] ||
 467              info->attrs[DEVLINK_ATTR_HEALTH_REPORTER_AUTO_RECOVER]))
 468                 return -EOPNOTSUPP;
 469
 470         if (!reporter->ops->dump &&
 471             info->attrs[DEVLINK_ATTR_HEALTH_REPORTER_AUTO_DUMP])
 472                 return -EOPNOTSUPP;
 473
 474         if (info->attrs[DEVLINK_ATTR_HEALTH_REPORTER_GRACEFUL_PERIOD])
 475                 reporter->graceful_period =
 476                         nla_get_u64(info->attrs[DEVLINK_ATTR_HEALTH_REPORTER_GRACEFUL_PERIOD]);
 477
 478         if (info->attrs[DEVLINK_ATTR_HEALTH_REPORTER_AUTO_RECOVER])
 479                 reporter->auto_recover =
 480                         nla_get_u8(info->attrs[DEVLINK_ATTR_HEALTH_REPORTER_AUTO_RECOVER]);
 481
 482         if (info->attrs[DEVLINK_ATTR_HEALTH_REPORTER_AUTO_DUMP])
 483                 reporter->auto_dump =
 484                 nla_get_u8(info->attrs[DEVLINK_ATTR_HEALTH_REPORTER_AUTO_DUMP]);
 485
 486         return 0;
 487 }
 488
 489 static void devlink_recover_notify(struct devlink_health_reporter *reporter,
 490                                    enum devlink_command cmd)
 491 {
 492         struct devlink *devlink = reporter->devlink;
 493         struct devlink_obj_desc desc;
 494         struct sk_buff *msg;
 495         int err;
 496
 497         WARN_ON(cmd != DEVLINK_CMD_HEALTH_REPORTER_RECOVER);
 498         ASSERT_DEVLINK_REGISTERED(devlink);
 499
 500         if (!devlink_nl_notify_need(devlink))
 501                 return;
 502
 503         msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
 504         if (!msg)
 505                 return;
 506
 507         err = devlink_nl_health_reporter_fill(msg, reporter, cmd, 0, 0, 0);
 508         if (err) {
 509                 nlmsg_free(msg);
 510                 return;
 511         }
 512
 513         devlink_nl_obj_desc_init(&desc, devlink);
 514         if (reporter->devlink_port)
 515                 devlink_nl_obj_desc_port_set(&desc, reporter->devlink_port);
 516         devlink_nl_notify_send_desc(devlink, msg, &desc);
 517 }
 518
 519 void
 520 devlink_health_reporter_recovery_done(struct devlink_health_reporter *reporter)
 521 {
 522         reporter->recovery_count++;
 523         reporter->last_recovery_ts = jiffies;
 524 }
 525 EXPORT_SYMBOL_GPL(devlink_health_reporter_recovery_done);
 526
 527 static int
 528 devlink_health_reporter_recover(struct devlink_health_reporter *reporter,
 529                                 void *priv_ctx, struct netlink_ext_ack *extack)
 530 {
 531         int err;
 532
 533         if (reporter->health_state == DEVLINK_HEALTH_REPORTER_STATE_HEALTHY)
 534                 return 0;
 535
 536         if (!reporter->ops->recover)
 537                 return -EOPNOTSUPP;
 538
 539         err = reporter->ops->recover(reporter, priv_ctx, extack);
 540         if (err)
 541                 return err;
 542
 543         devlink_health_reporter_recovery_done(reporter);
 544         reporter->health_state = DEVLINK_HEALTH_REPORTER_STATE_HEALTHY;
 545         devlink_recover_notify(reporter, DEVLINK_CMD_HEALTH_REPORTER_RECOVER);
 546
 547         return 0;
 548 }
 549
 550 static void
 551 devlink_health_dump_clear(struct devlink_health_reporter *reporter)
 552 {
 553         if (!reporter->dump_fmsg)
 554                 return;
 555         devlink_fmsg_free(reporter->dump_fmsg);
 556         reporter->dump_fmsg = NULL;
 557 }
 558
 559 static int devlink_health_do_dump(struct devlink_health_reporter *reporter,
 560                                   void *priv_ctx,
 561                                   struct netlink_ext_ack *extack)
 562 {
 563         int err;
 564
 565         if (!reporter->ops->dump)
 566                 return 0;
 567
 568         if (reporter->dump_fmsg)
 569                 return 0;
 570
 571         reporter->dump_fmsg = devlink_fmsg_alloc();
 572         if (!reporter->dump_fmsg)
 573                 return -ENOMEM;
 574
 575         devlink_fmsg_obj_nest_start(reporter->dump_fmsg);
 576
 577         err = reporter->ops->dump(reporter, reporter->dump_fmsg,
 578                                   priv_ctx, extack);
 579         if (err)
 580                 goto dump_err;
 581
 582         devlink_fmsg_obj_nest_end(reporter->dump_fmsg);
 583         err = reporter->dump_fmsg->err;
 584         if (err)
 585                 goto dump_err;
 586
 587         reporter->dump_ts = jiffies;
 588         reporter->dump_real_ts = ktime_get_real_ns();
 589
 590         return 0;
 591
 592 dump_err:
 593         devlink_health_dump_clear(reporter);
 594         return err;
 595 }
 596
 597 int devlink_health_report(struct devlink_health_reporter *reporter,
 598                           const char *msg, void *priv_ctx)
 599 {
 600         enum devlink_health_reporter_state prev_health_state;
 601         struct devlink *devlink = reporter->devlink;
 602         unsigned long recover_ts_threshold;
 603         int ret;
 604
 605         /* write a log message of the current error */
 606         WARN_ON(!msg);
 607         trace_devlink_health_report(devlink, reporter->ops->name, msg);
 608         reporter->error_count++;
 609         prev_health_state = reporter->health_state;
 610         reporter->health_state = DEVLINK_HEALTH_REPORTER_STATE_ERROR;
 611         devlink_recover_notify(reporter, DEVLINK_CMD_HEALTH_REPORTER_RECOVER);
 612
 613         /* abort if the previous error wasn't recovered */
 614         recover_ts_threshold = reporter->last_recovery_ts +
 615                                msecs_to_jiffies(reporter->graceful_period);
 616         if (reporter->auto_recover &&
 617             (prev_health_state != DEVLINK_HEALTH_REPORTER_STATE_HEALTHY ||
 618              (reporter->last_recovery_ts && reporter->recovery_count &&
 619               time_is_after_jiffies(recover_ts_threshold)))) {
 620                 trace_devlink_health_recover_aborted(devlink,
 621                                                      reporter->ops->name,
 622                                                      reporter->health_state,
 623                                                      jiffies -
 624                                                      reporter->last_recovery_ts);
 625                 return -ECANCELED;
 626         }
 627
 628         if (reporter->auto_dump) {
 629                 devl_lock(devlink);
 630                 /* store current dump of current error, for later analysis */
 631                 devlink_health_do_dump(reporter, priv_ctx, NULL);
 632                 devl_unlock(devlink);
 633         }
 634
 635         if (!reporter->auto_recover)
 636                 return 0;
 637
 638         devl_lock(devlink);
 639         ret = devlink_health_reporter_recover(reporter, priv_ctx, NULL);
 640         devl_unlock(devlink);
 641
 642         return ret;
 643 }
 644 EXPORT_SYMBOL_GPL(devlink_health_report);
 645
 646 void
 647 devlink_health_reporter_state_update(struct devlink_health_reporter *reporter,
 648                                      enum devlink_health_reporter_state state)
 649 {
 650         if (WARN_ON(state != DEVLINK_HEALTH_REPORTER_STATE_HEALTHY &&
 651                     state != DEVLINK_HEALTH_REPORTER_STATE_ERROR))
 652                 return;
 653
 654         if (reporter->health_state == state)
 655                 return;
 656
 657         reporter->health_state = state;
 658         trace_devlink_health_reporter_state_update(reporter->devlink,
 659                                                    reporter->ops->name, state);
 660         devlink_recover_notify(reporter, DEVLINK_CMD_HEALTH_REPORTER_RECOVER);
 661 }
 662 EXPORT_SYMBOL_GPL(devlink_health_reporter_state_update);
 663
 664 int devlink_nl_health_reporter_recover_doit(struct sk_buff *skb,
 665                                             struct genl_info *info)
 666 {
 667         struct devlink *devlink = info->user_ptr[0];
 668         struct devlink_health_reporter *reporter;
 669
 670         reporter = devlink_health_reporter_get_from_info(devlink, info);
 671         if (!reporter)
 672                 return -EINVAL;
 673
 674         return devlink_health_reporter_recover(reporter, NULL, info->extack);
 675 }
 676
 677 static void devlink_fmsg_err_if_binary(struct devlink_fmsg *fmsg)
 678 {
 679         if (!fmsg->err && fmsg->putting_binary)
 680                 fmsg->err = -EINVAL;
 681 }
 682
 683 static void devlink_fmsg_nest_common(struct devlink_fmsg *fmsg, int attrtype)
 684 {
 685         struct devlink_fmsg_item *item;
 686
 687         if (fmsg->err)
 688                 return;
 689
 690         item = kzalloc(sizeof(*item), GFP_KERNEL);
 691         if (!item) {
 692                 fmsg->err = -ENOMEM;
 693                 return;
 694         }
 695
 696         item->attrtype = attrtype;
 697         list_add_tail(&item->list, &fmsg->item_list);
 698 }
 699
 700 void devlink_fmsg_obj_nest_start(struct devlink_fmsg *fmsg)
 701 {
 702         devlink_fmsg_err_if_binary(fmsg);
 703         devlink_fmsg_nest_common(fmsg, DEVLINK_ATTR_FMSG_OBJ_NEST_START);
 704 }
 705 EXPORT_SYMBOL_GPL(devlink_fmsg_obj_nest_start);
 706
 707 static void devlink_fmsg_nest_end(struct devlink_fmsg *fmsg)
 708 {
 709         devlink_fmsg_err_if_binary(fmsg);
 710         devlink_fmsg_nest_common(fmsg, DEVLINK_ATTR_FMSG_NEST_END);
 711 }
 712
 713 void devlink_fmsg_obj_nest_end(struct devlink_fmsg *fmsg)
 714 {
 715         devlink_fmsg_nest_end(fmsg);
 716 }
 717 EXPORT_SYMBOL_GPL(devlink_fmsg_obj_nest_end);
 718
 719 #define DEVLINK_FMSG_MAX_SIZE (GENLMSG_DEFAULT_SIZE - GENL_HDRLEN - NLA_HDRLEN)
 720
 721 static void devlink_fmsg_put_name(struct devlink_fmsg *fmsg, const char *name)
 722 {
 723         struct devlink_fmsg_item *item;
 724
 725         devlink_fmsg_err_if_binary(fmsg);
 726         if (fmsg->err)
 727                 return;
 728
 729         if (strlen(name) + 1 > DEVLINK_FMSG_MAX_SIZE) {
 730                 fmsg->err = -EMSGSIZE;
 731                 return;
 732         }
 733
 734         item = kzalloc(sizeof(*item) + strlen(name) + 1, GFP_KERNEL);
 735         if (!item) {
 736                 fmsg->err = -ENOMEM;
 737                 return;
 738         }
 739
 740         item->nla_type = NLA_NUL_STRING;
 741         item->len = strlen(name) + 1;
 742         item->attrtype = DEVLINK_ATTR_FMSG_OBJ_NAME;
 743         memcpy(&item->value, name, item->len);
 744         list_add_tail(&item->list, &fmsg->item_list);
 745 }
 746
 747 void devlink_fmsg_pair_nest_start(struct devlink_fmsg *fmsg, const char *name)
 748 {
 749         devlink_fmsg_err_if_binary(fmsg);
 750         devlink_fmsg_nest_common(fmsg, DEVLINK_ATTR_FMSG_PAIR_NEST_START);
 751         devlink_fmsg_put_name(fmsg, name);
 752 }
 753 EXPORT_SYMBOL_GPL(devlink_fmsg_pair_nest_start);
 754
 755 void devlink_fmsg_pair_nest_end(struct devlink_fmsg *fmsg)
 756 {
 757         devlink_fmsg_nest_end(fmsg);
 758 }
 759 EXPORT_SYMBOL_GPL(devlink_fmsg_pair_nest_end);
 760
 761 void devlink_fmsg_arr_pair_nest_start(struct devlink_fmsg *fmsg,
 762                                       const char *name)
 763 {
 764         devlink_fmsg_pair_nest_start(fmsg, name);
 765         devlink_fmsg_nest_common(fmsg, DEVLINK_ATTR_FMSG_ARR_NEST_START);
 766 }
 767 EXPORT_SYMBOL_GPL(devlink_fmsg_arr_pair_nest_start);
 768
 769 void devlink_fmsg_arr_pair_nest_end(struct devlink_fmsg *fmsg)
 770 {
 771         devlink_fmsg_nest_end(fmsg);
 772         devlink_fmsg_nest_end(fmsg);
 773 }
 774 EXPORT_SYMBOL_GPL(devlink_fmsg_arr_pair_nest_end);
 775
 776 void devlink_fmsg_binary_pair_nest_start(struct devlink_fmsg *fmsg,
 777                                          const char *name)
 778 {
 779         devlink_fmsg_arr_pair_nest_start(fmsg, name);
 780         fmsg->putting_binary = true;
 781 }
 782 EXPORT_SYMBOL_GPL(devlink_fmsg_binary_pair_nest_start);
 783
 784 void devlink_fmsg_binary_pair_nest_end(struct devlink_fmsg *fmsg)
 785 {
 786         if (fmsg->err)
 787                 return;
 788
 789         if (!fmsg->putting_binary)
 790                 fmsg->err = -EINVAL;
 791
 792         fmsg->putting_binary = false;
 793         devlink_fmsg_arr_pair_nest_end(fmsg);
 794 }
 795 EXPORT_SYMBOL_GPL(devlink_fmsg_binary_pair_nest_end);
 796
 797 static void devlink_fmsg_put_value(struct devlink_fmsg *fmsg,
 798                                    const void *value, u16 value_len,
 799                                    u8 value_nla_type)
 800 {
 801         struct devlink_fmsg_item *item;
 802
 803         if (fmsg->err)
 804                 return;
 805
 806         if (value_len > DEVLINK_FMSG_MAX_SIZE) {
 807                 fmsg->err = -EMSGSIZE;
 808                 return;
 809         }
 810
 811         item = kzalloc(sizeof(*item) + value_len, GFP_KERNEL);
 812         if (!item) {
 813                 fmsg->err = -ENOMEM;
 814                 return;
 815         }
 816
 817         item->nla_type = value_nla_type;
 818         item->len = value_len;
 819         item->attrtype = DEVLINK_ATTR_FMSG_OBJ_VALUE_DATA;
 820         memcpy(&item->value, value, item->len);
 821         list_add_tail(&item->list, &fmsg->item_list);
 822 }
 823
 824 static void devlink_fmsg_bool_put(struct devlink_fmsg *fmsg, bool value)
 825 {
 826         devlink_fmsg_err_if_binary(fmsg);
 827         devlink_fmsg_put_value(fmsg, &value, sizeof(value), NLA_FLAG);
 828 }
 829
 830 static void devlink_fmsg_u8_put(struct devlink_fmsg *fmsg, u8 value)
 831 {
 832         devlink_fmsg_err_if_binary(fmsg);
 833         devlink_fmsg_put_value(fmsg, &value, sizeof(value), NLA_U8);
 834 }
 835
 836 void devlink_fmsg_u32_put(struct devlink_fmsg *fmsg, u32 value)
 837 {
 838         devlink_fmsg_err_if_binary(fmsg);
 839         devlink_fmsg_put_value(fmsg, &value, sizeof(value), NLA_U32);
 840 }
 841 EXPORT_SYMBOL_GPL(devlink_fmsg_u32_put);
 842
 843 static void devlink_fmsg_u64_put(struct devlink_fmsg *fmsg, u64 value)
 844 {
 845         devlink_fmsg_err_if_binary(fmsg);
 846         devlink_fmsg_put_value(fmsg, &value, sizeof(value), NLA_U64);
 847 }
 848
 849 void devlink_fmsg_string_put(struct devlink_fmsg *fmsg, const char *value)
 850 {
 851         devlink_fmsg_err_if_binary(fmsg);
 852         devlink_fmsg_put_value(fmsg, value, strlen(value) + 1, NLA_NUL_STRING);
 853 }
 854 EXPORT_SYMBOL_GPL(devlink_fmsg_string_put);
 855
 856 void devlink_fmsg_binary_put(struct devlink_fmsg *fmsg, const void *value,
 857                              u16 value_len)
 858 {
 859         if (!fmsg->err && !fmsg->putting_binary)
 860                 fmsg->err = -EINVAL;
 861
 862         devlink_fmsg_put_value(fmsg, value, value_len, NLA_BINARY);
 863 }
 864 EXPORT_SYMBOL_GPL(devlink_fmsg_binary_put);
 865
 866 void devlink_fmsg_bool_pair_put(struct devlink_fmsg *fmsg, const char *name,
 867                                 bool value)
 868 {
 869         devlink_fmsg_pair_nest_start(fmsg, name);
 870         devlink_fmsg_bool_put(fmsg, value);
 871         devlink_fmsg_pair_nest_end(fmsg);
 872 }
 873 EXPORT_SYMBOL_GPL(devlink_fmsg_bool_pair_put);
 874
 875 void devlink_fmsg_u8_pair_put(struct devlink_fmsg *fmsg, const char *name,
 876                               u8 value)
 877 {
 878         devlink_fmsg_pair_nest_start(fmsg, name);
 879         devlink_fmsg_u8_put(fmsg, value);
 880         devlink_fmsg_pair_nest_end(fmsg);
 881 }
 882 EXPORT_SYMBOL_GPL(devlink_fmsg_u8_pair_put);
 883
 884 void devlink_fmsg_u32_pair_put(struct devlink_fmsg *fmsg, const char *name,
 885                                u32 value)
 886 {
 887         devlink_fmsg_pair_nest_start(fmsg, name);
 888         devlink_fmsg_u32_put(fmsg, value);
 889         devlink_fmsg_pair_nest_end(fmsg);
 890 }
 891 EXPORT_SYMBOL_GPL(devlink_fmsg_u32_pair_put);
 892
 893 void devlink_fmsg_u64_pair_put(struct devlink_fmsg *fmsg, const char *name,
 894                                u64 value)
 895 {
 896         devlink_fmsg_pair_nest_start(fmsg, name);
 897         devlink_fmsg_u64_put(fmsg, value);
 898         devlink_fmsg_pair_nest_end(fmsg);
 899 }
 900 EXPORT_SYMBOL_GPL(devlink_fmsg_u64_pair_put);
 901
 902 void devlink_fmsg_string_pair_put(struct devlink_fmsg *fmsg, const char *name,
 903                                   const char *value)
 904 {
 905         devlink_fmsg_pair_nest_start(fmsg, name);
 906         devlink_fmsg_string_put(fmsg, value);
 907         devlink_fmsg_pair_nest_end(fmsg);
 908 }
 909 EXPORT_SYMBOL_GPL(devlink_fmsg_string_pair_put);
 910
 911 void devlink_fmsg_binary_pair_put(struct devlink_fmsg *fmsg, const char *name,
 912                                   const void *value, u32 value_len)
 913 {
 914         u32 data_size;
 915         u32 offset;
 916
 917         devlink_fmsg_binary_pair_nest_start(fmsg, name);
 918
 919         for (offset = 0; offset < value_len; offset += data_size) {
 920                 data_size = value_len - offset;
 921                 if (data_size > DEVLINK_FMSG_MAX_SIZE)
 922                         data_size = DEVLINK_FMSG_MAX_SIZE;
 923
 924                 devlink_fmsg_binary_put(fmsg, value + offset, data_size);
 925         }
 926
 927         devlink_fmsg_binary_pair_nest_end(fmsg);
 928         fmsg->putting_binary = false;
 929 }
 930 EXPORT_SYMBOL_GPL(devlink_fmsg_binary_pair_put);
 931
 932 static int
 933 devlink_fmsg_item_fill_type(struct devlink_fmsg_item *msg, struct sk_buff *skb)
 934 {
 935         switch (msg->nla_type) {
 936         case NLA_FLAG:
 937         case NLA_U8:
 938         case NLA_U32:
 939         case NLA_U64:
 940         case NLA_NUL_STRING:
 941         case NLA_BINARY:
 942                 return nla_put_u8(skb, DEVLINK_ATTR_FMSG_OBJ_VALUE_TYPE,
 943                                   msg->nla_type);
 944         default:
 945                 return -EINVAL;
 946         }
 947 }
 948
 949 static int
 950 devlink_fmsg_item_fill_data(struct devlink_fmsg_item *msg, struct sk_buff *skb)
 951 {
 952         int attrtype = DEVLINK_ATTR_FMSG_OBJ_VALUE_DATA;
 953         u8 tmp;
 954
 955         switch (msg->nla_type) {
 956         case NLA_FLAG:
 957                 /* Always provide flag data, regardless of its value */
 958                 tmp = *(bool *)msg->value;
 959
 960                 return nla_put_u8(skb, attrtype, tmp);
 961         case NLA_U8:
 962                 return nla_put_u8(skb, attrtype, *(u8 *)msg->value);
 963         case NLA_U32:
 964                 return nla_put_u32(skb, attrtype, *(u32 *)msg->value);
 965         case NLA_U64:
 966                 return nla_put_u64_64bit(skb, attrtype, *(u64 *)msg->value,
 967                                          DEVLINK_ATTR_PAD);
 968         case NLA_NUL_STRING:
 969                 return nla_put_string(skb, attrtype, (char *)&msg->value);
 970         case NLA_BINARY:
 971                 return nla_put(skb, attrtype, msg->len, (void *)&msg->value);
 972         default:
 973                 return -EINVAL;
 974         }
 975 }
 976
 977 static int
 978 devlink_fmsg_prepare_skb(struct devlink_fmsg *fmsg, struct sk_buff *skb,
 979                          int *start)
 980 {
 981         struct devlink_fmsg_item *item;
 982         struct nlattr *fmsg_nlattr;
 983         int err = 0;
 984         int i = 0;
 985
 986         fmsg_nlattr = nla_nest_start_noflag(skb, DEVLINK_ATTR_FMSG);
 987         if (!fmsg_nlattr)
 988                 return -EMSGSIZE;
 989
 990         list_for_each_entry(item, &fmsg->item_list, list) {
 991                 if (i < *start) {
 992                         i++;
 993                         continue;
 994                 }
 995
 996                 switch (item->attrtype) {
 997                 case DEVLINK_ATTR_FMSG_OBJ_NEST_START:
 998                 case DEVLINK_ATTR_FMSG_PAIR_NEST_START:
 999                 case DEVLINK_ATTR_FMSG_ARR_NEST_START:
1000                 case DEVLINK_ATTR_FMSG_NEST_END:
1001                         err = nla_put_flag(skb, item->attrtype);
1002                         break;
1003                 case DEVLINK_ATTR_FMSG_OBJ_VALUE_DATA:
1004                         err = devlink_fmsg_item_fill_type(item, skb);
1005                         if (err)
1006                                 break;
1007                         err = devlink_fmsg_item_fill_data(item, skb);
1008                         break;
1009                 case DEVLINK_ATTR_FMSG_OBJ_NAME:
1010                         err = nla_put_string(skb, item->attrtype,
1011                                              (char *)&item->value);
1012                         break;
1013                 default:
1014                         err = -EINVAL;
1015                         break;
1016                 }
1017                 if (!err)
1018                         *start = ++i;
1019                 else
1020                         break;
1021         }
1022
1023         nla_nest_end(skb, fmsg_nlattr);
1024         return err;
1025 }
1026
1027 static int devlink_fmsg_snd(struct devlink_fmsg *fmsg,
1028                             struct genl_info *info,
1029                             enum devlink_command cmd, int flags)
1030 {
1031         struct nlmsghdr *nlh;
1032         struct sk_buff *skb;
1033         bool last = false;
1034         int index = 0;
1035         void *hdr;
1036         int err;
1037
1038         if (fmsg->err)
1039                 return fmsg->err;
1040
1041         while (!last) {
1042                 int tmp_index = index;
1043
1044                 skb = genlmsg_new(GENLMSG_DEFAULT_SIZE, GFP_KERNEL);
1045                 if (!skb)
1046                         return -ENOMEM;
1047
1048                 hdr = genlmsg_put(skb, info->snd_portid, info->snd_seq,
1049                                   &devlink_nl_family, flags | NLM_F_MULTI, cmd);
1050                 if (!hdr) {
1051                         err = -EMSGSIZE;
1052                         goto nla_put_failure;
1053                 }
1054
1055                 err = devlink_fmsg_prepare_skb(fmsg, skb, &index);
1056                 if (!err)
1057                         last = true;
1058                 else if (err != -EMSGSIZE || tmp_index == index)
1059                         goto nla_put_failure;
1060
1061                 genlmsg_end(skb, hdr);
1062                 err = genlmsg_reply(skb, info);
1063                 if (err)
1064                         return err;
1065         }
1066
1067         skb = genlmsg_new(GENLMSG_DEFAULT_SIZE, GFP_KERNEL);
1068         if (!skb)
1069                 return -ENOMEM;
1070         nlh = nlmsg_put(skb, info->snd_portid, info->snd_seq,
1071                         NLMSG_DONE, 0, flags | NLM_F_MULTI);
1072         if (!nlh) {
1073                 err = -EMSGSIZE;
1074                 goto nla_put_failure;
1075         }
1076
1077         return genlmsg_reply(skb, info);
1078
1079 nla_put_failure:
1080         nlmsg_free(skb);
1081         return err;
1082 }
1083
1084 static int devlink_fmsg_dumpit(struct devlink_fmsg *fmsg, struct sk_buff *skb,
1085                                struct netlink_callback *cb,
1086                                enum devlink_command cmd)
1087 {
1088         struct devlink_nl_dump_state *state = devlink_dump_state(cb);
1089         int index = state->idx;
1090         int tmp_index = index;
1091         void *hdr;
1092         int err;
1093
1094         if (fmsg->err)
1095                 return fmsg->err;
1096
1097         hdr = genlmsg_put(skb, NETLINK_CB(cb->skb).portid, cb->nlh->nlmsg_seq,
1098                           &devlink_nl_family, NLM_F_ACK | NLM_F_MULTI, cmd);
1099         if (!hdr) {
1100                 err = -EMSGSIZE;
1101                 goto nla_put_failure;
1102         }
1103
1104         err = devlink_fmsg_prepare_skb(fmsg, skb, &index);
1105         if ((err && err != -EMSGSIZE) || tmp_index == index)
1106                 goto nla_put_failure;
1107
1108         state->idx = index;
1109         genlmsg_end(skb, hdr);
1110         return skb->len;
1111
1112 nla_put_failure:
1113         genlmsg_cancel(skb, hdr);
1114         return err;
1115 }
1116
1117 int devlink_nl_health_reporter_diagnose_doit(struct sk_buff *skb,
1118                                              struct genl_info *info)
1119 {
1120         struct devlink *devlink = info->user_ptr[0];
1121         struct devlink_health_reporter *reporter;
1122         struct devlink_fmsg *fmsg;
1123         int err;
1124
1125         reporter = devlink_health_reporter_get_from_info(devlink, info);
1126         if (!reporter)
1127                 return -EINVAL;
1128
1129         if (!reporter->ops->diagnose)
1130                 return -EOPNOTSUPP;
1131
1132         fmsg = devlink_fmsg_alloc();
1133         if (!fmsg)
1134                 return -ENOMEM;
1135
1136         devlink_fmsg_obj_nest_start(fmsg);
1137
1138         err = reporter->ops->diagnose(reporter, fmsg, info->extack);
1139         if (err)
1140                 goto out;
1141
1142         devlink_fmsg_obj_nest_end(fmsg);
1143
1144         err = devlink_fmsg_snd(fmsg, info,
1145                                DEVLINK_CMD_HEALTH_REPORTER_DIAGNOSE, 0);
1146
1147 out:
1148         devlink_fmsg_free(fmsg);
1149         return err;
1150 }
1151
1152 static struct devlink_health_reporter *
1153 devlink_health_reporter_get_from_cb_lock(struct netlink_callback *cb)
1154 {
1155         const struct genl_info *info = genl_info_dump(cb);
1156         struct devlink_health_reporter *reporter;
1157         struct nlattr **attrs = info->attrs;
1158         struct devlink *devlink;
1159
1160         devlink = devlink_get_from_attrs_lock(sock_net(cb->skb->sk), attrs,
1161                                               false);
1162         if (IS_ERR(devlink))
1163                 return NULL;
1164
1165         reporter = devlink_health_reporter_get_from_attrs(devlink, attrs);
1166         if (!reporter) {
1167                 devl_unlock(devlink);
1168                 devlink_put(devlink);
1169         }
1170         return reporter;
1171 }
1172
1173 int devlink_nl_health_reporter_dump_get_dumpit(struct sk_buff *skb,
1174                                                struct netlink_callback *cb)
1175 {
1176         struct devlink_nl_dump_state *state = devlink_dump_state(cb);
1177         struct devlink_health_reporter *reporter;
1178         struct devlink *devlink;
1179         int err;
1180
1181         reporter = devlink_health_reporter_get_from_cb_lock(cb);
1182         if (!reporter)
1183                 return -EINVAL;
1184
1185         devlink = reporter->devlink;
1186         if (!reporter->ops->dump) {
1187                 devl_unlock(devlink);
1188                 devlink_put(devlink);
1189                 return -EOPNOTSUPP;
1190         }
1191
1192         if (!state->idx) {
1193                 err = devlink_health_do_dump(reporter, NULL, cb->extack);
1194                 if (err)
1195                         goto unlock;
1196                 state->dump_ts = reporter->dump_ts;
1197         }
1198         if (!reporter->dump_fmsg || state->dump_ts != reporter->dump_ts) {
1199                 NL_SET_ERR_MSG(cb->extack, "Dump trampled, please retry");
1200                 err = -EAGAIN;
1201                 goto unlock;
1202         }
1203
1204         err = devlink_fmsg_dumpit(reporter->dump_fmsg, skb, cb,
1205                                   DEVLINK_CMD_HEALTH_REPORTER_DUMP_GET);
1206 unlock:
1207         devl_unlock(devlink);
1208         devlink_put(devlink);
1209         return err;
1210 }
1211
1212 int devlink_nl_health_reporter_dump_clear_doit(struct sk_buff *skb,
1213                                                struct genl_info *info)
1214 {
1215         struct devlink *devlink = info->user_ptr[0];
1216         struct devlink_health_reporter *reporter;
1217
1218         reporter = devlink_health_reporter_get_from_info(devlink, info);
1219         if (!reporter)
1220                 return -EINVAL;
1221
1222         if (!reporter->ops->dump)
1223                 return -EOPNOTSUPP;
1224
1225         devlink_health_dump_clear(reporter);
1226         return 0;
1227 }
1228
1229 int devlink_nl_health_reporter_test_doit(struct sk_buff *skb,
1230                                          struct genl_info *info)
1231 {
1232         struct devlink *devlink = info->user_ptr[0];
1233         struct devlink_health_reporter *reporter;
1234
1235         reporter = devlink_health_reporter_get_from_info(devlink, info);
1236         if (!reporter)
1237                 return -EINVAL;
1238
1239         if (!reporter->ops->test)
1240                 return -EOPNOTSUPP;
1241
1242         return reporter->ops->test(reporter, info->extack);
1243 }