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 inline 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         struct qeth_card *card = dev_get_drvdata(dev);
 157         char portname[9] = {0, };
 158
 159         if (!card)
 160                 return -EINVAL;
 161
 162         if (card->info.portname_required) {
 163                 memcpy(portname, card->info.portname + 1, 8);
 164                 EBCASC(portname, 8);
 165                 return sprintf(buf, "%s\n", portname);
 166         } else
 167                 return sprintf(buf, "no portname required\n");
 168 }
 169
 170 static ssize_t qeth_dev_portname_store(struct device *dev,
 171                 struct device_attribute *attr, const char *buf, size_t count)
 172 {
 173         struct qeth_card *card = dev_get_drvdata(dev);
 174         char *tmp;
 175         int i, rc = 0;
 176
 177         if (!card)
 178                 return -EINVAL;
 179
 180         mutex_lock(&card->conf_mutex);
 181         if ((card->state != CARD_STATE_DOWN) &&
 182             (card->state != CARD_STATE_RECOVER)) {
 183                 rc = -EPERM;
 184                 goto out;
 185         }
 186
 187         tmp = strsep((char **) &buf, "\n");
 188         if ((strlen(tmp) > 8) || (strlen(tmp) == 0)) {
 189                 rc = -EINVAL;
 190                 goto out;
 191         }
 192
 193         card->info.portname[0] = strlen(tmp);
 194         /* for beauty reasons */
 195         for (i = 1; i < 9; i++)
 196                 card->info.portname[i] = ' ';
 197         strcpy(card->info.portname + 1, tmp);
 198         ASCEBC(card->info.portname + 1, 8);
 199 out:
 200         mutex_unlock(&card->conf_mutex);
 201         return rc ? rc : count;
 202 }
 203
 204 static DEVICE_ATTR(portname, 0644, qeth_dev_portname_show,
 205                 qeth_dev_portname_store);
 206
 207 static ssize_t qeth_dev_prioqing_show(struct device *dev,
 208                                 struct device_attribute *attr, char *buf)
 209 {
 210         struct qeth_card *card = dev_get_drvdata(dev);
 211
 212         if (!card)
 213                 return -EINVAL;
 214
 215         switch (card->qdio.do_prio_queueing) {
 216         case QETH_PRIO_Q_ING_PREC:
 217                 return sprintf(buf, "%s\n", "by precedence");
 218         case QETH_PRIO_Q_ING_TOS:
 219                 return sprintf(buf, "%s\n", "by type of service");
 220         case QETH_PRIO_Q_ING_SKB:
 221                 return sprintf(buf, "%s\n", "by skb-priority");
 222         case QETH_PRIO_Q_ING_VLAN:
 223                 return sprintf(buf, "%s\n", "by VLAN headers");
 224         default:
 225                 return sprintf(buf, "always queue %i\n",
 226                                card->qdio.default_out_queue);
 227         }
 228 }
 229
 230 static ssize_t qeth_dev_prioqing_store(struct device *dev,
 231                 struct device_attribute *attr, const char *buf, size_t count)
 232 {
 233         struct qeth_card *card = dev_get_drvdata(dev);
 234         char *tmp;
 235         int rc = 0;
 236
 237         if (!card)
 238                 return -EINVAL;
 239
 240         mutex_lock(&card->conf_mutex);
 241         if ((card->state != CARD_STATE_DOWN) &&
 242             (card->state != CARD_STATE_RECOVER)) {
 243                 rc = -EPERM;
 244                 goto out;
 245         }
 246
 247         /* check if 1920 devices are supported ,
 248          * if though we have to permit priority queueing
 249          */
 250         if (card->qdio.no_out_queues == 1) {
 251                 card->qdio.do_prio_queueing = QETH_PRIOQ_DEFAULT;
 252                 rc = -EPERM;
 253                 goto out;
 254         }
 255
 256         tmp = strsep((char **) &buf, "\n");
 257         if (!strcmp(tmp, "prio_queueing_prec")) {
 258                 card->qdio.do_prio_queueing = QETH_PRIO_Q_ING_PREC;
 259                 card->qdio.default_out_queue = QETH_DEFAULT_QUEUE;
 260         } else if (!strcmp(tmp, "prio_queueing_skb")) {
 261                 card->qdio.do_prio_queueing = QETH_PRIO_Q_ING_SKB;
 262                 card->qdio.default_out_queue = QETH_DEFAULT_QUEUE;
 263         } else if (!strcmp(tmp, "prio_queueing_tos")) {
 264                 card->qdio.do_prio_queueing = QETH_PRIO_Q_ING_TOS;
 265                 card->qdio.default_out_queue = QETH_DEFAULT_QUEUE;
 266         } else if (!strcmp(tmp, "prio_queueing_vlan")) {
 267                 if (!card->options.layer2) {
 268                         rc = -ENOTSUPP;
 269                         goto out;
 270                 }
 271                 card->qdio.do_prio_queueing = QETH_PRIO_Q_ING_VLAN;
 272                 card->qdio.default_out_queue = QETH_DEFAULT_QUEUE;
 273         } else if (!strcmp(tmp, "no_prio_queueing:0")) {
 274                 card->qdio.do_prio_queueing = QETH_NO_PRIO_QUEUEING;
 275                 card->qdio.default_out_queue = 0;
 276         } else if (!strcmp(tmp, "no_prio_queueing:1")) {
 277                 card->qdio.do_prio_queueing = QETH_NO_PRIO_QUEUEING;
 278                 card->qdio.default_out_queue = 1;
 279         } else if (!strcmp(tmp, "no_prio_queueing:2")) {
 280                 card->qdio.do_prio_queueing = QETH_NO_PRIO_QUEUEING;
 281                 card->qdio.default_out_queue = 2;
 282         } else if (!strcmp(tmp, "no_prio_queueing:3")) {
 283                 card->qdio.do_prio_queueing = QETH_NO_PRIO_QUEUEING;
 284                 card->qdio.default_out_queue = 3;
 285         } else if (!strcmp(tmp, "no_prio_queueing")) {
 286                 card->qdio.do_prio_queueing = QETH_NO_PRIO_QUEUEING;
 287                 card->qdio.default_out_queue = QETH_DEFAULT_QUEUE;
 288         } else
 289                 rc = -EINVAL;
 290 out:
 291         mutex_unlock(&card->conf_mutex);
 292         return rc ? rc : count;
 293 }
 294
 295 static DEVICE_ATTR(priority_queueing, 0644, qeth_dev_prioqing_show,
 296                 qeth_dev_prioqing_store);
 297
 298 static ssize_t qeth_dev_bufcnt_show(struct device *dev,
 299                                 struct device_attribute *attr, char *buf)
 300 {
 301         struct qeth_card *card = dev_get_drvdata(dev);
 302
 303         if (!card)
 304                 return -EINVAL;
 305
 306         return sprintf(buf, "%i\n", card->qdio.in_buf_pool.buf_count);
 307 }
 308
 309 static ssize_t qeth_dev_bufcnt_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 cnt, old_cnt;
 315         int rc = 0;
 316
 317         if (!card)
 318                 return -EINVAL;
 319
 320         mutex_lock(&card->conf_mutex);
 321         if ((card->state != CARD_STATE_DOWN) &&
 322             (card->state != CARD_STATE_RECOVER)) {
 323                 rc = -EPERM;
 324                 goto out;
 325         }
 326
 327         old_cnt = card->qdio.in_buf_pool.buf_count;
 328         cnt = simple_strtoul(buf, &tmp, 10);
 329         cnt = (cnt < QETH_IN_BUF_COUNT_MIN) ? QETH_IN_BUF_COUNT_MIN :
 330                 ((cnt > QETH_IN_BUF_COUNT_MAX) ? QETH_IN_BUF_COUNT_MAX : cnt);
 331         if (old_cnt != cnt) {
 332                 rc = qeth_realloc_buffer_pool(card, cnt);
 333         }
 334 out:
 335         mutex_unlock(&card->conf_mutex);
 336         return rc ? rc : count;
 337 }
 338
 339 static DEVICE_ATTR(buffer_count, 0644, qeth_dev_bufcnt_show,
 340                 qeth_dev_bufcnt_store);
 341
 342 static ssize_t qeth_dev_recover_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;
 348
 349         if (!card)
 350                 return -EINVAL;
 351
 352         if (card->state != CARD_STATE_UP)
 353                 return -EPERM;
 354
 355         i = simple_strtoul(buf, &tmp, 16);
 356         if (i == 1)
 357                 qeth_schedule_recovery(card);
 358
 359         return count;
 360 }
 361
 362 static DEVICE_ATTR(recover, 0200, NULL, qeth_dev_recover_store);
 363
 364 static ssize_t qeth_dev_performance_stats_show(struct device *dev,
 365                                 struct device_attribute *attr, char *buf)
 366 {
 367         struct qeth_card *card = dev_get_drvdata(dev);
 368
 369         if (!card)
 370                 return -EINVAL;
 371
 372         return sprintf(buf, "%i\n", card->options.performance_stats ? 1:0);
 373 }
 374
 375 static ssize_t qeth_dev_performance_stats_store(struct device *dev,
 376                 struct device_attribute *attr, const char *buf, size_t count)
 377 {
 378         struct qeth_card *card = dev_get_drvdata(dev);
 379         char *tmp;
 380         int i, rc = 0;
 381
 382         if (!card)
 383                 return -EINVAL;
 384
 385         mutex_lock(&card->conf_mutex);
 386         i = simple_strtoul(buf, &tmp, 16);
 387         if ((i == 0) || (i == 1)) {
 388                 if (i == card->options.performance_stats)
 389                         goto out;
 390                 card->options.performance_stats = i;
 391                 if (i == 0)
 392                         memset(&card->perf_stats, 0,
 393                                 sizeof(struct qeth_perf_stats));
 394                 card->perf_stats.initial_rx_packets = card->stats.rx_packets;
 395                 card->perf_stats.initial_tx_packets = card->stats.tx_packets;
 396         } else
 397                 rc = -EINVAL;
 398 out:
 399         mutex_unlock(&card->conf_mutex);
 400         return rc ? rc : count;
 401 }
 402
 403 static DEVICE_ATTR(performance_stats, 0644, qeth_dev_performance_stats_show,
 404                    qeth_dev_performance_stats_store);
 405
 406 static ssize_t qeth_dev_layer2_show(struct device *dev,
 407                 struct device_attribute *attr, char *buf)
 408 {
 409         struct qeth_card *card = dev_get_drvdata(dev);
 410
 411         if (!card)
 412                 return -EINVAL;
 413
 414         return sprintf(buf, "%i\n", card->options.layer2);
 415 }
 416
 417 static ssize_t qeth_dev_layer2_store(struct device *dev,
 418                 struct device_attribute *attr, const char *buf, size_t count)
 419 {
 420         struct qeth_card *card = dev_get_drvdata(dev);
 421         char *tmp;
 422         int i, rc = 0;
 423         enum qeth_discipline_id newdis;
 424
 425         if (!card)
 426                 return -EINVAL;
 427
 428         mutex_lock(&card->discipline_mutex);
 429         if (card->state != CARD_STATE_DOWN) {
 430                 rc = -EPERM;
 431                 goto out;
 432         }
 433
 434         i = simple_strtoul(buf, &tmp, 16);
 435         switch (i) {
 436         case 0:
 437                 newdis = QETH_DISCIPLINE_LAYER3;
 438                 break;
 439         case 1:
 440                 newdis = QETH_DISCIPLINE_LAYER2;
 441                 break;
 442         default:
 443                 rc = -EINVAL;
 444                 goto out;
 445         }
 446
 447         if (card->options.layer2 == newdis)
 448                 goto out;
 449         else {
 450                 card->info.mac_bits  = 0;
 451                 if (card->discipline) {
 452                         card->discipline->remove(card->gdev);
 453                         qeth_core_free_discipline(card);
 454                 }
 455         }
 456
 457         rc = qeth_core_load_discipline(card, newdis);
 458         if (rc)
 459                 goto out;
 460
 461         rc = card->discipline->setup(card->gdev);
 462 out:
 463         mutex_unlock(&card->discipline_mutex);
 464         return rc ? rc : count;
 465 }
 466
 467 static DEVICE_ATTR(layer2, 0644, qeth_dev_layer2_show,
 468                    qeth_dev_layer2_store);
 469
 470 #define ATTR_QETH_ISOLATION_NONE        ("none")
 471 #define ATTR_QETH_ISOLATION_FWD         ("forward")
 472 #define ATTR_QETH_ISOLATION_DROP        ("drop")
 473
 474 static ssize_t qeth_dev_isolation_show(struct device *dev,
 475                                 struct device_attribute *attr, char *buf)
 476 {
 477         struct qeth_card *card = dev_get_drvdata(dev);
 478
 479         if (!card)
 480                 return -EINVAL;
 481
 482         switch (card->options.isolation) {
 483         case ISOLATION_MODE_NONE:
 484                 return snprintf(buf, 6, "%s\n", ATTR_QETH_ISOLATION_NONE);
 485         case ISOLATION_MODE_FWD:
 486                 return snprintf(buf, 9, "%s\n", ATTR_QETH_ISOLATION_FWD);
 487         case ISOLATION_MODE_DROP:
 488                 return snprintf(buf, 6, "%s\n", ATTR_QETH_ISOLATION_DROP);
 489         default:
 490                 return snprintf(buf, 5, "%s\n", "N/A");
 491         }
 492 }
 493
 494 static ssize_t qeth_dev_isolation_store(struct device *dev,
 495                 struct device_attribute *attr, const char *buf, size_t count)
 496 {
 497         struct qeth_card *card = dev_get_drvdata(dev);
 498         enum qeth_ipa_isolation_modes isolation;
 499         int rc = 0;
 500         char *tmp, *curtoken;
 501         curtoken = (char *) buf;
 502
 503         if (!card)
 504                 return -EINVAL;
 505
 506         mutex_lock(&card->conf_mutex);
 507         /* check for unknown, too, in case we do not yet know who we are */
 508         if (card->info.type != QETH_CARD_TYPE_OSD &&
 509             card->info.type != QETH_CARD_TYPE_OSX &&
 510             card->info.type != QETH_CARD_TYPE_UNKNOWN) {
 511                 rc = -EOPNOTSUPP;
 512                 dev_err(&card->gdev->dev, "Adapter does not "
 513                         "support QDIO data connection isolation\n");
 514                 goto out;
 515         }
 516
 517         /* parse input into isolation mode */
 518         tmp = strsep(&curtoken, "\n");
 519         if (!strcmp(tmp, ATTR_QETH_ISOLATION_NONE)) {
 520                 isolation = ISOLATION_MODE_NONE;
 521         } else if (!strcmp(tmp, ATTR_QETH_ISOLATION_FWD)) {
 522                 isolation = ISOLATION_MODE_FWD;
 523         } else if (!strcmp(tmp, ATTR_QETH_ISOLATION_DROP)) {
 524                 isolation = ISOLATION_MODE_DROP;
 525         } else {
 526                 rc = -EINVAL;
 527                 goto out;
 528         }
 529         rc = count;
 530
 531         /* defer IP assist if device is offline (until discipline->set_online)*/
 532         card->options.prev_isolation = card->options.isolation;
 533         card->options.isolation = isolation;
 534         if (card->state == CARD_STATE_SOFTSETUP ||
 535             card->state == CARD_STATE_UP) {
 536                 int ipa_rc = qeth_set_access_ctrl_online(card, 1);
 537                 if (ipa_rc != 0)
 538                         rc = ipa_rc;
 539         }
 540 out:
 541         mutex_unlock(&card->conf_mutex);
 542         return rc;
 543 }
 544
 545 static DEVICE_ATTR(isolation, 0644, qeth_dev_isolation_show,
 546                    qeth_dev_isolation_store);
 547
 548 static ssize_t qeth_hw_trap_show(struct device *dev,
 549                                 struct device_attribute *attr, char *buf)
 550 {
 551         struct qeth_card *card = dev_get_drvdata(dev);
 552
 553         if (!card)
 554                 return -EINVAL;
 555         if (card->info.hwtrap)
 556                 return snprintf(buf, 5, "arm\n");
 557         else
 558                 return snprintf(buf, 8, "disarm\n");
 559 }
 560
 561 static ssize_t qeth_hw_trap_store(struct device *dev,
 562                 struct device_attribute *attr, const char *buf, size_t count)
 563 {
 564         struct qeth_card *card = dev_get_drvdata(dev);
 565         int rc = 0;
 566         char *tmp, *curtoken;
 567         int state = 0;
 568         curtoken = (char *)buf;
 569
 570         if (!card)
 571                 return -EINVAL;
 572
 573         mutex_lock(&card->conf_mutex);
 574         if (card->state == CARD_STATE_SOFTSETUP || card->state == CARD_STATE_UP)
 575                 state = 1;
 576         tmp = strsep(&curtoken, "\n");
 577
 578         if (!strcmp(tmp, "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 (!strcmp(tmp, "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 (!strcmp(tmp, "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 static struct attribute_group qeth_device_blkt_group = {
 712         .name = "blkt",
 713         .attrs = qeth_blkt_device_attrs,
 714 };
 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         NULL,
 732 };
 733 static struct attribute_group qeth_device_attr_group = {
 734         .attrs = qeth_device_attrs,
 735 };
 736
 737 const struct attribute_group *qeth_generic_attr_groups[] = {
 738         &qeth_device_attr_group,
 739         &qeth_device_blkt_group,
 740         NULL,
 741 };
 742
 743 static struct attribute *qeth_osn_device_attrs[] = {
 744         &dev_attr_state.attr,
 745         &dev_attr_chpid.attr,
 746         &dev_attr_if_name.attr,
 747         &dev_attr_card_type.attr,
 748         &dev_attr_buffer_count.attr,
 749         &dev_attr_recover.attr,
 750         NULL,
 751 };
 752 static struct attribute_group qeth_osn_device_attr_group = {
 753         .attrs = qeth_osn_device_attrs,
 754 };
 755 const struct attribute_group *qeth_osn_attr_groups[] = {
 756         &qeth_osn_device_attr_group,
 757         NULL,
 758 };