drivers/s390/net/qeth_core_sys.c

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