drivers/s390/net/qeth_core_sys.c

   1 // SPDX-License-Identifier: GPL-2.0
   2 /*
   3  *    Copyright IBM Corp. 2007
   4  *    Author(s): Utz Bacher <utz.bacher@de.ibm.com>,
   5  *               Frank Pavlic <fpavlic@de.ibm.com>,
   6  *               Thomas Spatzier <tspat@de.ibm.com>,
   7  *               Frank Blaschka <frank.blaschka@de.ibm.com>
   8  */
   9
  10 #define KMSG_COMPONENT "qeth"
  11 #define pr_fmt(fmt) KMSG_COMPONENT ": " fmt
  12
  13 #include <linux/list.h>
  14 #include <linux/rwsem.h>
  15 #include <asm/ebcdic.h>
  16
  17 #include "qeth_core.h"
  18
  19 static ssize_t qeth_dev_state_show(struct device *dev,
  20                                 struct device_attribute *attr, char *buf)
  21 {
  22         struct qeth_card *card = dev_get_drvdata(dev);
  23         if (!card)
  24                 return -EINVAL;
  25
  26         switch (card->state) {
  27         case CARD_STATE_DOWN:
  28                 return sprintf(buf, "DOWN\n");
  29         case CARD_STATE_HARDSETUP:
  30                 return sprintf(buf, "HARDSETUP\n");
  31         case CARD_STATE_SOFTSETUP:
  32                 return sprintf(buf, "SOFTSETUP\n");
  33         case CARD_STATE_UP:
  34                 if (card->lan_online)
  35                 return sprintf(buf, "UP (LAN ONLINE)\n");
  36                 else
  37                         return sprintf(buf, "UP (LAN OFFLINE)\n");
  38         case CARD_STATE_RECOVER:
  39                 return sprintf(buf, "RECOVER\n");
  40         default:
  41                 return sprintf(buf, "UNKNOWN\n");
  42         }
  43 }
  44
  45 static DEVICE_ATTR(state, 0444, qeth_dev_state_show, NULL);
  46
  47 static ssize_t qeth_dev_chpid_show(struct device *dev,
  48                                 struct device_attribute *attr, char *buf)
  49 {
  50         struct qeth_card *card = dev_get_drvdata(dev);
  51         if (!card)
  52                 return -EINVAL;
  53
  54         return sprintf(buf, "%02X\n", card->info.chpid);
  55 }
  56
  57 static DEVICE_ATTR(chpid, 0444, qeth_dev_chpid_show, NULL);
  58
  59 static ssize_t qeth_dev_if_name_show(struct device *dev,
  60                                 struct device_attribute *attr, char *buf)
  61 {
  62         struct qeth_card *card = dev_get_drvdata(dev);
  63         if (!card)
  64                 return -EINVAL;
  65         return sprintf(buf, "%s\n", QETH_CARD_IFNAME(card));
  66 }
  67
  68 static DEVICE_ATTR(if_name, 0444, qeth_dev_if_name_show, NULL);
  69
  70 static ssize_t qeth_dev_card_type_show(struct device *dev,
  71                                 struct device_attribute *attr, char *buf)
  72 {
  73         struct qeth_card *card = dev_get_drvdata(dev);
  74         if (!card)
  75                 return -EINVAL;
  76
  77         return sprintf(buf, "%s\n", qeth_get_cardname_short(card));
  78 }
  79
  80 static DEVICE_ATTR(card_type, 0444, qeth_dev_card_type_show, NULL);
  81
  82 static const char *qeth_get_bufsize_str(struct qeth_card *card)
  83 {
  84         if (card->qdio.in_buf_size == 16384)
  85                 return "16k";
  86         else if (card->qdio.in_buf_size == 24576)
  87                 return "24k";
  88         else if (card->qdio.in_buf_size == 32768)
  89                 return "32k";
  90         else if (card->qdio.in_buf_size == 40960)
  91                 return "40k";
  92         else
  93                 return "64k";
  94 }
  95
  96 static ssize_t qeth_dev_inbuf_size_show(struct device *dev,
  97                                 struct device_attribute *attr, char *buf)
  98 {
  99         struct qeth_card *card = dev_get_drvdata(dev);
 100         if (!card)
 101                 return -EINVAL;
 102
 103         return sprintf(buf, "%s\n", qeth_get_bufsize_str(card));
 104 }
 105
 106 static DEVICE_ATTR(inbuf_size, 0444, qeth_dev_inbuf_size_show, NULL);
 107
 108 static ssize_t qeth_dev_portno_show(struct device *dev,
 109                         struct device_attribute *attr, char *buf)
 110 {
 111         struct qeth_card *card = dev_get_drvdata(dev);
 112         if (!card)
 113                 return -EINVAL;
 114
 115         return sprintf(buf, "%i\n", card->info.portno);
 116 }
 117
 118 static ssize_t qeth_dev_portno_store(struct device *dev,
 119                 struct device_attribute *attr, const char *buf, size_t count)
 120 {
 121         struct qeth_card *card = dev_get_drvdata(dev);
 122         char *tmp;
 123         unsigned int portno, limit;
 124         int rc = 0;
 125
 126         if (!card)
 127                 return -EINVAL;
 128
 129         mutex_lock(&card->conf_mutex);
 130         if ((card->state != CARD_STATE_DOWN) &&
 131             (card->state != CARD_STATE_RECOVER)) {
 132                 rc = -EPERM;
 133                 goto out;
 134         }
 135
 136         portno = simple_strtoul(buf, &tmp, 16);
 137         if (portno > QETH_MAX_PORTNO) {
 138                 rc = -EINVAL;
 139                 goto out;
 140         }
 141         limit = (card->ssqd.pcnt ? card->ssqd.pcnt - 1 : card->ssqd.pcnt);
 142         if (portno > limit) {
 143                 rc = -EINVAL;
 144                 goto out;
 145         }
 146         card->info.portno = portno;
 147 out:
 148         mutex_unlock(&card->conf_mutex);
 149         return rc ? rc : count;
 150 }
 151
 152 static DEVICE_ATTR(portno, 0644, qeth_dev_portno_show, qeth_dev_portno_store);
 153
 154 static ssize_t qeth_dev_portname_show(struct device *dev,
 155                                 struct device_attribute *attr, char *buf)
 156 {
 157         return sprintf(buf, "no portname required\n");
 158 }
 159
 160 static ssize_t qeth_dev_portname_store(struct device *dev,
 161                 struct device_attribute *attr, const char *buf, size_t count)
 162 {
 163         struct qeth_card *card = dev_get_drvdata(dev);
 164
 165         dev_warn_once(&card->gdev->dev,
 166                       "portname is deprecated and is ignored\n");
 167         return count;
 168 }
 169
 170 static DEVICE_ATTR(portname, 0644, qeth_dev_portname_show,
 171                 qeth_dev_portname_store);
 172
 173 static ssize_t qeth_dev_prioqing_show(struct device *dev,
 174                                 struct device_attribute *attr, char *buf)
 175 {
 176         struct qeth_card *card = dev_get_drvdata(dev);
 177
 178         if (!card)
 179                 return -EINVAL;
 180
 181         switch (card->qdio.do_prio_queueing) {
 182         case QETH_PRIO_Q_ING_PREC:
 183                 return sprintf(buf, "%s\n", "by precedence");
 184         case QETH_PRIO_Q_ING_TOS:
 185                 return sprintf(buf, "%s\n", "by type of service");
 186         case QETH_PRIO_Q_ING_SKB:
 187                 return sprintf(buf, "%s\n", "by skb-priority");
 188         case QETH_PRIO_Q_ING_VLAN:
 189                 return sprintf(buf, "%s\n", "by VLAN headers");
 190         default:
 191                 return sprintf(buf, "always queue %i\n",
 192                                card->qdio.default_out_queue);
 193         }
 194 }
 195
 196 static ssize_t qeth_dev_prioqing_store(struct device *dev,
 197                 struct device_attribute *attr, const char *buf, size_t count)
 198 {
 199         struct qeth_card *card = dev_get_drvdata(dev);
 200         int rc = 0;
 201
 202         if (!card)
 203                 return -EINVAL;
 204
 205         mutex_lock(&card->conf_mutex);
 206         if ((card->state != CARD_STATE_DOWN) &&
 207             (card->state != CARD_STATE_RECOVER)) {
 208                 rc = -EPERM;
 209                 goto out;
 210         }
 211
 212         /* check if 1920 devices are supported ,
 213          * if though we have to permit priority queueing
 214          */
 215         if (card->qdio.no_out_queues == 1) {
 216                 card->qdio.do_prio_queueing = QETH_PRIOQ_DEFAULT;
 217                 rc = -EPERM;
 218                 goto out;
 219         }
 220
 221         if (sysfs_streq(buf, "prio_queueing_prec")) {
 222                 card->qdio.do_prio_queueing = QETH_PRIO_Q_ING_PREC;
 223                 card->qdio.default_out_queue = QETH_DEFAULT_QUEUE;
 224         } else if (sysfs_streq(buf, "prio_queueing_skb")) {
 225                 card->qdio.do_prio_queueing = QETH_PRIO_Q_ING_SKB;
 226                 card->qdio.default_out_queue = QETH_DEFAULT_QUEUE;
 227         } else if (sysfs_streq(buf, "prio_queueing_tos")) {
 228                 card->qdio.do_prio_queueing = QETH_PRIO_Q_ING_TOS;
 229                 card->qdio.default_out_queue = QETH_DEFAULT_QUEUE;
 230         } else if (sysfs_streq(buf, "prio_queueing_vlan")) {
 231                 if (!card->options.layer2) {
 232                         rc = -ENOTSUPP;
 233                         goto out;
 234                 }
 235                 card->qdio.do_prio_queueing = QETH_PRIO_Q_ING_VLAN;
 236                 card->qdio.default_out_queue = QETH_DEFAULT_QUEUE;
 237         } else if (sysfs_streq(buf, "no_prio_queueing:0")) {
 238                 card->qdio.do_prio_queueing = QETH_NO_PRIO_QUEUEING;
 239                 card->qdio.default_out_queue = 0;
 240         } else if (sysfs_streq(buf, "no_prio_queueing:1")) {
 241                 card->qdio.do_prio_queueing = QETH_NO_PRIO_QUEUEING;
 242                 card->qdio.default_out_queue = 1;
 243         } else if (sysfs_streq(buf, "no_prio_queueing:2")) {
 244                 card->qdio.do_prio_queueing = QETH_NO_PRIO_QUEUEING;
 245                 card->qdio.default_out_queue = 2;
 246         } else if (sysfs_streq(buf, "no_prio_queueing:3")) {
 247                 if (card->info.type == QETH_CARD_TYPE_IQD) {
 248                         rc = -EPERM;
 249                         goto out;
 250                 }
 251                 card->qdio.do_prio_queueing = QETH_NO_PRIO_QUEUEING;
 252                 card->qdio.default_out_queue = 3;
 253         } else if (sysfs_streq(buf, "no_prio_queueing")) {
 254                 card->qdio.do_prio_queueing = QETH_NO_PRIO_QUEUEING;
 255                 card->qdio.default_out_queue = QETH_DEFAULT_QUEUE;
 256         } else
 257                 rc = -EINVAL;
 258 out:
 259         mutex_unlock(&card->conf_mutex);
 260         return rc ? rc : count;
 261 }
 262
 263 static DEVICE_ATTR(priority_queueing, 0644, qeth_dev_prioqing_show,
 264                 qeth_dev_prioqing_store);
 265
 266 static ssize_t qeth_dev_bufcnt_show(struct device *dev,
 267                                 struct device_attribute *attr, char *buf)
 268 {
 269         struct qeth_card *card = dev_get_drvdata(dev);
 270
 271         if (!card)
 272                 return -EINVAL;
 273
 274         return sprintf(buf, "%i\n", card->qdio.in_buf_pool.buf_count);
 275 }
 276
 277 static ssize_t qeth_dev_bufcnt_store(struct device *dev,
 278                 struct device_attribute *attr, const char *buf, size_t count)
 279 {
 280         struct qeth_card *card = dev_get_drvdata(dev);
 281         char *tmp;
 282         int cnt, old_cnt;
 283         int rc = 0;
 284
 285         if (!card)
 286                 return -EINVAL;
 287
 288         mutex_lock(&card->conf_mutex);
 289         if ((card->state != CARD_STATE_DOWN) &&
 290             (card->state != CARD_STATE_RECOVER)) {
 291                 rc = -EPERM;
 292                 goto out;
 293         }
 294
 295         old_cnt = card->qdio.in_buf_pool.buf_count;
 296         cnt = simple_strtoul(buf, &tmp, 10);
 297         cnt = (cnt < QETH_IN_BUF_COUNT_MIN) ? QETH_IN_BUF_COUNT_MIN :
 298                 ((cnt > QETH_IN_BUF_COUNT_MAX) ? QETH_IN_BUF_COUNT_MAX : cnt);
 299         if (old_cnt != cnt) {
 300                 rc = qeth_realloc_buffer_pool(card, cnt);
 301         }
 302 out:
 303         mutex_unlock(&card->conf_mutex);
 304         return rc ? rc : count;
 305 }
 306
 307 static DEVICE_ATTR(buffer_count, 0644, qeth_dev_bufcnt_show,
 308                 qeth_dev_bufcnt_store);
 309
 310 static ssize_t qeth_dev_recover_store(struct device *dev,
 311                 struct device_attribute *attr, const char *buf, size_t count)
 312 {
 313         struct qeth_card *card = dev_get_drvdata(dev);
 314         char *tmp;
 315         int i;
 316
 317         if (!card)
 318                 return -EINVAL;
 319
 320         if (card->state != CARD_STATE_UP)
 321                 return -EPERM;
 322
 323         i = simple_strtoul(buf, &tmp, 16);
 324         if (i == 1)
 325                 qeth_schedule_recovery(card);
 326
 327         return count;
 328 }
 329
 330 static DEVICE_ATTR(recover, 0200, NULL, qeth_dev_recover_store);
 331
 332 static ssize_t qeth_dev_performance_stats_show(struct device *dev,
 333                                 struct device_attribute *attr, char *buf)
 334 {
 335         struct qeth_card *card = dev_get_drvdata(dev);
 336
 337         if (!card)
 338                 return -EINVAL;
 339
 340         return sprintf(buf, "%i\n", card->options.performance_stats ? 1:0);
 341 }
 342
 343 static ssize_t qeth_dev_performance_stats_store(struct device *dev,
 344                 struct device_attribute *attr, const char *buf, size_t count)
 345 {
 346         struct qeth_card *card = dev_get_drvdata(dev);
 347         char *tmp;
 348         int i, rc = 0;
 349
 350         if (!card)
 351                 return -EINVAL;
 352
 353         mutex_lock(&card->conf_mutex);
 354         i = simple_strtoul(buf, &tmp, 16);
 355         if ((i == 0) || (i == 1)) {
 356                 if (i == card->options.performance_stats)
 357                         goto out;
 358                 card->options.performance_stats = i;
 359                 if (i == 0)
 360                         memset(&card->perf_stats, 0,
 361                                 sizeof(struct qeth_perf_stats));
 362                 card->perf_stats.initial_rx_packets = card->stats.rx_packets;
 363                 card->perf_stats.initial_tx_packets = card->stats.tx_packets;
 364         } else
 365                 rc = -EINVAL;
 366 out:
 367         mutex_unlock(&card->conf_mutex);
 368         return rc ? rc : count;
 369 }
 370
 371 static DEVICE_ATTR(performance_stats, 0644, qeth_dev_performance_stats_show,
 372                    qeth_dev_performance_stats_store);
 373
 374 static ssize_t qeth_dev_layer2_show(struct device *dev,
 375                 struct device_attribute *attr, char *buf)
 376 {
 377         struct qeth_card *card = dev_get_drvdata(dev);
 378
 379         if (!card)
 380                 return -EINVAL;
 381
 382         return sprintf(buf, "%i\n", card->options.layer2);
 383 }
 384
 385 static ssize_t qeth_dev_layer2_store(struct device *dev,
 386                 struct device_attribute *attr, const char *buf, size_t count)
 387 {
 388         struct qeth_card *card = dev_get_drvdata(dev);
 389         char *tmp;
 390         int i, rc = 0;
 391         enum qeth_discipline_id newdis;
 392
 393         if (!card)
 394                 return -EINVAL;
 395
 396         mutex_lock(&card->discipline_mutex);
 397         if (card->state != CARD_STATE_DOWN) {
 398                 rc = -EPERM;
 399                 goto out;
 400         }
 401
 402         i = simple_strtoul(buf, &tmp, 16);
 403         switch (i) {
 404         case 0:
 405                 newdis = QETH_DISCIPLINE_LAYER3;
 406                 break;
 407         case 1:
 408                 newdis = QETH_DISCIPLINE_LAYER2;
 409                 break;
 410         default:
 411                 rc = -EINVAL;
 412                 goto out;
 413         }
 414
 415         if (card->options.layer2 == newdis)
 416                 goto out;
 417         if (card->info.layer_enforced) {
 418                 /* fixed layer, can't switch */
 419                 rc = -EOPNOTSUPP;
 420                 goto out;
 421         }
 422
 423         card->info.mac_bits = 0;
 424         if (card->discipline) {
 425                 card->discipline->remove(card->gdev);
 426                 qeth_core_free_discipline(card);
 427         }
 428
 429         rc = qeth_core_load_discipline(card, newdis);
 430         if (rc)
 431                 goto out;
 432
 433         rc = card->discipline->setup(card->gdev);
 434         if (rc)
 435                 qeth_core_free_discipline(card);
 436 out:
 437         mutex_unlock(&card->discipline_mutex);
 438         return rc ? rc : count;
 439 }
 440
 441 static DEVICE_ATTR(layer2, 0644, qeth_dev_layer2_show,
 442                    qeth_dev_layer2_store);
 443
 444 #define ATTR_QETH_ISOLATION_NONE        ("none")
 445 #define ATTR_QETH_ISOLATION_FWD         ("forward")
 446 #define ATTR_QETH_ISOLATION_DROP        ("drop")
 447
 448 static ssize_t qeth_dev_isolation_show(struct device *dev,
 449                                 struct device_attribute *attr, char *buf)
 450 {
 451         struct qeth_card *card = dev_get_drvdata(dev);
 452
 453         if (!card)
 454                 return -EINVAL;
 455
 456         switch (card->options.isolation) {
 457         case ISOLATION_MODE_NONE:
 458                 return snprintf(buf, 6, "%s\n", ATTR_QETH_ISOLATION_NONE);
 459         case ISOLATION_MODE_FWD:
 460                 return snprintf(buf, 9, "%s\n", ATTR_QETH_ISOLATION_FWD);
 461         case ISOLATION_MODE_DROP:
 462                 return snprintf(buf, 6, "%s\n", ATTR_QETH_ISOLATION_DROP);
 463         default:
 464                 return snprintf(buf, 5, "%s\n", "N/A");
 465         }
 466 }
 467
 468 static ssize_t qeth_dev_isolation_store(struct device *dev,
 469                 struct device_attribute *attr, const char *buf, size_t count)
 470 {
 471         struct qeth_card *card = dev_get_drvdata(dev);
 472         enum qeth_ipa_isolation_modes isolation;
 473         int rc = 0;
 474
 475         if (!card)
 476                 return -EINVAL;
 477
 478         mutex_lock(&card->conf_mutex);
 479         if (card->info.type != QETH_CARD_TYPE_OSD &&
 480             card->info.type != QETH_CARD_TYPE_OSX) {
 481                 rc = -EOPNOTSUPP;
 482                 dev_err(&card->gdev->dev, "Adapter does not "
 483                         "support QDIO data connection isolation\n");
 484                 goto out;
 485         }
 486
 487         /* parse input into isolation mode */
 488         if (sysfs_streq(buf, ATTR_QETH_ISOLATION_NONE)) {
 489                 isolation = ISOLATION_MODE_NONE;
 490         } else if (sysfs_streq(buf, ATTR_QETH_ISOLATION_FWD)) {
 491                 isolation = ISOLATION_MODE_FWD;
 492         } else if (sysfs_streq(buf, ATTR_QETH_ISOLATION_DROP)) {
 493                 isolation = ISOLATION_MODE_DROP;
 494         } else {
 495                 rc = -EINVAL;
 496                 goto out;
 497         }
 498         rc = count;
 499
 500         /* defer IP assist if device is offline (until discipline->set_online)*/
 501         card->options.prev_isolation = card->options.isolation;
 502         card->options.isolation = isolation;
 503         if (qeth_card_hw_is_reachable(card)) {
 504                 int ipa_rc = qeth_set_access_ctrl_online(card, 1);
 505                 if (ipa_rc != 0)
 506                         rc = ipa_rc;
 507         }
 508 out:
 509         mutex_unlock(&card->conf_mutex);
 510         return rc;
 511 }
 512
 513 static DEVICE_ATTR(isolation, 0644, qeth_dev_isolation_show,
 514                         qeth_dev_isolation_store);
 515
 516 static ssize_t qeth_dev_switch_attrs_show(struct device *dev,
 517                                 struct device_attribute *attr, char *buf)
 518 {
 519         struct qeth_card *card = dev_get_drvdata(dev);
 520         struct qeth_switch_info sw_info;
 521         int     rc = 0;
 522
 523         if (!card)
 524                 return -EINVAL;
 525
 526         if (!qeth_card_hw_is_reachable(card))
 527                 return sprintf(buf, "n/a\n");
 528
 529         rc = qeth_query_switch_attributes(card, &sw_info);
 530         if (rc)
 531                 return rc;
 532
 533         if (!sw_info.capabilities)
 534                 rc = sprintf(buf, "unknown");
 535
 536         if (sw_info.capabilities & QETH_SWITCH_FORW_802_1)
 537                 rc = sprintf(buf, (sw_info.settings & QETH_SWITCH_FORW_802_1 ?
 538                                                         "[802.1]" : "802.1"));
 539         if (sw_info.capabilities & QETH_SWITCH_FORW_REFL_RELAY)
 540                 rc += sprintf(buf + rc,
 541                         (sw_info.settings & QETH_SWITCH_FORW_REFL_RELAY ?
 542                                                         " [rr]" : " rr"));
 543         rc += sprintf(buf + rc, "\n");
 544
 545         return rc;
 546 }
 547
 548 static DEVICE_ATTR(switch_attrs, 0444,
 549                    qeth_dev_switch_attrs_show, NULL);
 550
 551 static ssize_t qeth_hw_trap_show(struct device *dev,
 552                                 struct device_attribute *attr, char *buf)
 553 {
 554         struct qeth_card *card = dev_get_drvdata(dev);
 555
 556         if (!card)
 557                 return -EINVAL;
 558         if (card->info.hwtrap)
 559                 return snprintf(buf, 5, "arm\n");
 560         else
 561                 return snprintf(buf, 8, "disarm\n");
 562 }
 563
 564 static ssize_t qeth_hw_trap_store(struct device *dev,
 565                 struct device_attribute *attr, const char *buf, size_t count)
 566 {
 567         struct qeth_card *card = dev_get_drvdata(dev);
 568         int rc = 0;
 569         int state = 0;
 570
 571         if (!card)
 572                 return -EINVAL;
 573
 574         mutex_lock(&card->conf_mutex);
 575         if (qeth_card_hw_is_reachable(card))
 576                 state = 1;
 577
 578         if (sysfs_streq(buf, "arm") && !card->info.hwtrap) {
 579                 if (state) {
 580                         if (qeth_is_diagass_supported(card,
 581                             QETH_DIAGS_CMD_TRAP)) {
 582                                 rc = qeth_hw_trap(card, QETH_DIAGS_TRAP_ARM);
 583                                 if (!rc)
 584                                         card->info.hwtrap = 1;
 585                         } else
 586                                 rc = -EINVAL;
 587                 } else
 588                         card->info.hwtrap = 1;
 589         } else if (sysfs_streq(buf, "disarm") && card->info.hwtrap) {
 590                 if (state) {
 591                         rc = qeth_hw_trap(card, QETH_DIAGS_TRAP_DISARM);
 592                         if (!rc)
 593                                 card->info.hwtrap = 0;
 594                 } else
 595                         card->info.hwtrap = 0;
 596         } else if (sysfs_streq(buf, "trap") && state && card->info.hwtrap)
 597                 rc = qeth_hw_trap(card, QETH_DIAGS_TRAP_CAPTURE);
 598         else
 599                 rc = -EINVAL;
 600
 601         mutex_unlock(&card->conf_mutex);
 602         return rc ? rc : count;
 603 }
 604
 605 static DEVICE_ATTR(hw_trap, 0644, qeth_hw_trap_show,
 606                    qeth_hw_trap_store);
 607
 608 static ssize_t qeth_dev_blkt_show(char *buf, struct qeth_card *card, int value)
 609 {
 610
 611         if (!card)
 612                 return -EINVAL;
 613
 614         return sprintf(buf, "%i\n", value);
 615 }
 616
 617 static ssize_t qeth_dev_blkt_store(struct qeth_card *card,
 618                 const char *buf, size_t count, int *value, int max_value)
 619 {
 620         char *tmp;
 621         int i, rc = 0;
 622
 623         if (!card)
 624                 return -EINVAL;
 625
 626         mutex_lock(&card->conf_mutex);
 627         if ((card->state != CARD_STATE_DOWN) &&
 628             (card->state != CARD_STATE_RECOVER)) {
 629                 rc = -EPERM;
 630                 goto out;
 631         }
 632         i = simple_strtoul(buf, &tmp, 10);
 633         if (i <= max_value)
 634                 *value = i;
 635         else
 636                 rc = -EINVAL;
 637 out:
 638         mutex_unlock(&card->conf_mutex);
 639         return rc ? rc : count;
 640 }
 641
 642 static ssize_t qeth_dev_blkt_total_show(struct device *dev,
 643                                 struct device_attribute *attr, char *buf)
 644 {
 645         struct qeth_card *card = dev_get_drvdata(dev);
 646
 647         return qeth_dev_blkt_show(buf, card, card->info.blkt.time_total);
 648 }
 649
 650 static ssize_t qeth_dev_blkt_total_store(struct device *dev,
 651                 struct device_attribute *attr, const char *buf, size_t count)
 652 {
 653         struct qeth_card *card = dev_get_drvdata(dev);
 654
 655         return qeth_dev_blkt_store(card, buf, count,
 656                                    &card->info.blkt.time_total, 5000);
 657 }
 658
 659
 660
 661 static DEVICE_ATTR(total, 0644, qeth_dev_blkt_total_show,
 662                    qeth_dev_blkt_total_store);
 663
 664 static ssize_t qeth_dev_blkt_inter_show(struct device *dev,
 665                                 struct device_attribute *attr, char *buf)
 666 {
 667         struct qeth_card *card = dev_get_drvdata(dev);
 668
 669         return qeth_dev_blkt_show(buf, card, card->info.blkt.inter_packet);
 670 }
 671
 672 static ssize_t qeth_dev_blkt_inter_store(struct device *dev,
 673                 struct device_attribute *attr, const char *buf, size_t count)
 674 {
 675         struct qeth_card *card = dev_get_drvdata(dev);
 676
 677         return qeth_dev_blkt_store(card, buf, count,
 678                                    &card->info.blkt.inter_packet, 1000);
 679 }
 680
 681 static DEVICE_ATTR(inter, 0644, qeth_dev_blkt_inter_show,
 682                    qeth_dev_blkt_inter_store);
 683
 684 static ssize_t qeth_dev_blkt_inter_jumbo_show(struct device *dev,
 685                                 struct device_attribute *attr, char *buf)
 686 {
 687         struct qeth_card *card = dev_get_drvdata(dev);
 688
 689         return qeth_dev_blkt_show(buf, card,
 690                                   card->info.blkt.inter_packet_jumbo);
 691 }
 692
 693 static ssize_t qeth_dev_blkt_inter_jumbo_store(struct device *dev,
 694                 struct device_attribute *attr, const char *buf, size_t count)
 695 {
 696         struct qeth_card *card = dev_get_drvdata(dev);
 697
 698         return qeth_dev_blkt_store(card, buf, count,
 699                                    &card->info.blkt.inter_packet_jumbo, 1000);
 700 }
 701
 702 static DEVICE_ATTR(inter_jumbo, 0644, qeth_dev_blkt_inter_jumbo_show,
 703                    qeth_dev_blkt_inter_jumbo_store);
 704
 705 static struct attribute *qeth_blkt_device_attrs[] = {
 706         &dev_attr_total.attr,
 707         &dev_attr_inter.attr,
 708         &dev_attr_inter_jumbo.attr,
 709         NULL,
 710 };
 711 const struct attribute_group qeth_device_blkt_group = {
 712         .name = "blkt",
 713         .attrs = qeth_blkt_device_attrs,
 714 };
 715 EXPORT_SYMBOL_GPL(qeth_device_blkt_group);
 716
 717 static struct attribute *qeth_device_attrs[] = {
 718         &dev_attr_state.attr,
 719         &dev_attr_chpid.attr,
 720         &dev_attr_if_name.attr,
 721         &dev_attr_card_type.attr,
 722         &dev_attr_inbuf_size.attr,
 723         &dev_attr_portno.attr,
 724         &dev_attr_portname.attr,
 725         &dev_attr_priority_queueing.attr,
 726         &dev_attr_buffer_count.attr,
 727         &dev_attr_recover.attr,
 728         &dev_attr_performance_stats.attr,
 729         &dev_attr_layer2.attr,
 730         &dev_attr_isolation.attr,
 731         &dev_attr_hw_trap.attr,
 732         &dev_attr_switch_attrs.attr,
 733         NULL,
 734 };
 735 const struct attribute_group qeth_device_attr_group = {
 736         .attrs = qeth_device_attrs,
 737 };
 738 EXPORT_SYMBOL_GPL(qeth_device_attr_group);
 739
 740 const struct attribute_group *qeth_generic_attr_groups[] = {
 741         &qeth_device_attr_group,
 742         &qeth_device_blkt_group,
 743         NULL,
 744 };
 745
 746 static struct attribute *qeth_osn_device_attrs[] = {
 747         &dev_attr_state.attr,
 748         &dev_attr_chpid.attr,
 749         &dev_attr_if_name.attr,
 750         &dev_attr_card_type.attr,
 751         &dev_attr_buffer_count.attr,
 752         &dev_attr_recover.attr,
 753         NULL,
 754 };
 755 static struct attribute_group qeth_osn_device_attr_group = {
 756         .attrs = qeth_osn_device_attrs,
 757 };
 758 const struct attribute_group *qeth_osn_attr_groups[] = {
 759         &qeth_osn_device_attr_group,
 760         NULL,
 761 };