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   1 /*
   2  *
   3  * linux/drivers/s390/net/qeth_sys.c ($Revision: 1.51 $)
   4  *
   5  * Linux on zSeries OSA Express and HiperSockets support
   6  * This file contains code related to sysfs.
   7  *
   8  * Copyright 2000,2003 IBM Corporation
   9  *
  10  * Author(s): Thomas Spatzier <tspat@de.ibm.com>
  11  *            Frank Pavlic <pavlic@de.ibm.com>
  12  *
  13  */
  14 #include <linux/list.h>
  15 #include <linux/rwsem.h>
  16
  17 #include <asm/ebcdic.h>
  18
  19 #include "qeth.h"
  20 #include "qeth_mpc.h"
  21 #include "qeth_fs.h"
  22
  23 const char *VERSION_QETH_SYS_C = "$Revision: 1.51 $";
  24
  25 /*****************************************************************************/
  26 /*                                                                           */
  27 /*          /sys-fs stuff UNDER DEVELOPMENT !!!                              */
  28 /*                                                                           */
  29 /*****************************************************************************/
  30 //low/high watermark
  31
  32 static ssize_t
  33 qeth_dev_state_show(struct device *dev, struct device_attribute *attr, char *buf)
  34 {
  35         struct qeth_card *card = dev->driver_data;
  36         if (!card)
  37                 return -EINVAL;
  38
  39         switch (card->state) {
  40         case CARD_STATE_DOWN:
  41                 return sprintf(buf, "DOWN\n");
  42         case CARD_STATE_HARDSETUP:
  43                 return sprintf(buf, "HARDSETUP\n");
  44         case CARD_STATE_SOFTSETUP:
  45                 return sprintf(buf, "SOFTSETUP\n");
  46         case CARD_STATE_UP:
  47                 if (card->lan_online)
  48                 return sprintf(buf, "UP (LAN ONLINE)\n");
  49                 else
  50                         return sprintf(buf, "UP (LAN OFFLINE)\n");
  51         case CARD_STATE_RECOVER:
  52                 return sprintf(buf, "RECOVER\n");
  53         default:
  54                 return sprintf(buf, "UNKNOWN\n");
  55         }
  56 }
  57
  58 static DEVICE_ATTR(state, 0444, qeth_dev_state_show, NULL);
  59
  60 static ssize_t
  61 qeth_dev_chpid_show(struct device *dev, struct device_attribute *attr, char *buf)
  62 {
  63         struct qeth_card *card = dev->driver_data;
  64         if (!card)
  65                 return -EINVAL;
  66
  67         return sprintf(buf, "%02X\n", card->info.chpid);
  68 }
  69
  70 static DEVICE_ATTR(chpid, 0444, qeth_dev_chpid_show, NULL);
  71
  72 static ssize_t
  73 qeth_dev_if_name_show(struct device *dev, struct device_attribute *attr, char *buf)
  74 {
  75         struct qeth_card *card = dev->driver_data;
  76         if (!card)
  77                 return -EINVAL;
  78         return sprintf(buf, "%s\n", QETH_CARD_IFNAME(card));
  79 }
  80
  81 static DEVICE_ATTR(if_name, 0444, qeth_dev_if_name_show, NULL);
  82
  83 static ssize_t
  84 qeth_dev_card_type_show(struct device *dev, struct device_attribute *attr, char *buf)
  85 {
  86         struct qeth_card *card = dev->driver_data;
  87         if (!card)
  88                 return -EINVAL;
  89
  90         return sprintf(buf, "%s\n", qeth_get_cardname_short(card));
  91 }
  92
  93 static DEVICE_ATTR(card_type, 0444, qeth_dev_card_type_show, NULL);
  94
  95 static ssize_t
  96 qeth_dev_portno_show(struct device *dev, struct device_attribute *attr, char *buf)
  97 {
  98         struct qeth_card *card = dev->driver_data;
  99         if (!card)
 100                 return -EINVAL;
 101
 102         return sprintf(buf, "%i\n", card->info.portno);
 103 }
 104
 105 static ssize_t
 106 qeth_dev_portno_store(struct device *dev, struct device_attribute *attr, const char *buf, size_t count)
 107 {
 108         struct qeth_card *card = dev->driver_data;
 109         char *tmp;
 110         unsigned int portno;
 111
 112         if (!card)
 113                 return -EINVAL;
 114
 115         if ((card->state != CARD_STATE_DOWN) &&
 116             (card->state != CARD_STATE_RECOVER))
 117                 return -EPERM;
 118
 119         portno = simple_strtoul(buf, &tmp, 16);
 120         if ((portno < 0) || (portno > MAX_PORTNO)){
 121                 PRINT_WARN("portno 0x%X is out of range\n", portno);
 122                 return -EINVAL;
 123         }
 124
 125         card->info.portno = portno;
 126         return count;
 127 }
 128
 129 static DEVICE_ATTR(portno, 0644, qeth_dev_portno_show, qeth_dev_portno_store);
 130
 131 static ssize_t
 132 qeth_dev_portname_show(struct device *dev, struct device_attribute *attr, char *buf)
 133 {
 134         struct qeth_card *card = dev->driver_data;
 135         char portname[9] = {0, };
 136
 137         if (!card)
 138                 return -EINVAL;
 139
 140         if (card->info.portname_required) {
 141                 memcpy(portname, card->info.portname + 1, 8);
 142                 EBCASC(portname, 8);
 143                 return sprintf(buf, "%s\n", portname);
 144         } else
 145                 return sprintf(buf, "no portname required\n");
 146 }
 147
 148 static ssize_t
 149 qeth_dev_portname_store(struct device *dev, struct device_attribute *attr, const char *buf, size_t count)
 150 {
 151         struct qeth_card *card = dev->driver_data;
 152         char *tmp;
 153         int i;
 154
 155         if (!card)
 156                 return -EINVAL;
 157
 158         if ((card->state != CARD_STATE_DOWN) &&
 159             (card->state != CARD_STATE_RECOVER))
 160                 return -EPERM;
 161
 162         tmp = strsep((char **) &buf, "\n");
 163         if ((strlen(tmp) > 8) || (strlen(tmp) < 2))
 164                 return -EINVAL;
 165
 166         card->info.portname[0] = strlen(tmp);
 167         /* for beauty reasons */
 168         for (i = 1; i < 9; i++)
 169                 card->info.portname[i] = ' ';
 170         strcpy(card->info.portname + 1, tmp);
 171         ASCEBC(card->info.portname + 1, 8);
 172
 173         return count;
 174 }
 175
 176 static DEVICE_ATTR(portname, 0644, qeth_dev_portname_show,
 177                 qeth_dev_portname_store);
 178
 179 static ssize_t
 180 qeth_dev_checksum_show(struct device *dev, struct device_attribute *attr, char *buf)
 181 {
 182         struct qeth_card *card = dev->driver_data;
 183
 184         if (!card)
 185                 return -EINVAL;
 186
 187         return sprintf(buf, "%s checksumming\n", qeth_get_checksum_str(card));
 188 }
 189
 190 static ssize_t
 191 qeth_dev_checksum_store(struct device *dev, struct device_attribute *attr, const char *buf, size_t count)
 192 {
 193         struct qeth_card *card = dev->driver_data;
 194         char *tmp;
 195
 196         if (!card)
 197                 return -EINVAL;
 198
 199         if ((card->state != CARD_STATE_DOWN) &&
 200             (card->state != CARD_STATE_RECOVER))
 201                 return -EPERM;
 202
 203         tmp = strsep((char **) &buf, "\n");
 204         if (!strcmp(tmp, "sw_checksumming"))
 205                 card->options.checksum_type = SW_CHECKSUMMING;
 206         else if (!strcmp(tmp, "hw_checksumming"))
 207                 card->options.checksum_type = HW_CHECKSUMMING;
 208         else if (!strcmp(tmp, "no_checksumming"))
 209                 card->options.checksum_type = NO_CHECKSUMMING;
 210         else {
 211                 PRINT_WARN("Unknown checksumming type '%s'\n", tmp);
 212                 return -EINVAL;
 213         }
 214         return count;
 215 }
 216
 217 static DEVICE_ATTR(checksumming, 0644, qeth_dev_checksum_show,
 218                 qeth_dev_checksum_store);
 219
 220 static ssize_t
 221 qeth_dev_prioqing_show(struct device *dev, struct device_attribute *attr, char *buf)
 222 {
 223         struct qeth_card *card = dev->driver_data;
 224
 225         if (!card)
 226                 return -EINVAL;
 227
 228         switch (card->qdio.do_prio_queueing) {
 229         case QETH_PRIO_Q_ING_PREC:
 230                 return sprintf(buf, "%s\n", "by precedence");
 231         case QETH_PRIO_Q_ING_TOS:
 232                 return sprintf(buf, "%s\n", "by type of service");
 233         default:
 234                 return sprintf(buf, "always queue %i\n",
 235                                card->qdio.default_out_queue);
 236         }
 237 }
 238
 239 static ssize_t
 240 qeth_dev_prioqing_store(struct device *dev, struct device_attribute *attr, const char *buf, size_t count)
 241 {
 242         struct qeth_card *card = dev->driver_data;
 243         char *tmp;
 244
 245         if (!card)
 246                 return -EINVAL;
 247
 248         if ((card->state != CARD_STATE_DOWN) &&
 249             (card->state != CARD_STATE_RECOVER))
 250                 return -EPERM;
 251
 252         /* check if 1920 devices are supported ,
 253          * if though we have to permit priority queueing
 254          */
 255         if (card->qdio.no_out_queues == 1) {
 256                 PRINT_WARN("Priority queueing disabled due "
 257                            "to hardware limitations!\n");
 258                 card->qdio.do_prio_queueing = QETH_PRIOQ_DEFAULT;
 259                 return -EPERM;
 260         }
 261
 262         tmp = strsep((char **) &buf, "\n");
 263         if (!strcmp(tmp, "prio_queueing_prec"))
 264                 card->qdio.do_prio_queueing = QETH_PRIO_Q_ING_PREC;
 265         else if (!strcmp(tmp, "prio_queueing_tos"))
 266                 card->qdio.do_prio_queueing = QETH_PRIO_Q_ING_TOS;
 267         else if (!strcmp(tmp, "no_prio_queueing:0")) {
 268                 card->qdio.do_prio_queueing = QETH_NO_PRIO_QUEUEING;
 269                 card->qdio.default_out_queue = 0;
 270         } else if (!strcmp(tmp, "no_prio_queueing:1")) {
 271                 card->qdio.do_prio_queueing = QETH_NO_PRIO_QUEUEING;
 272                 card->qdio.default_out_queue = 1;
 273         } else if (!strcmp(tmp, "no_prio_queueing:2")) {
 274                 card->qdio.do_prio_queueing = QETH_NO_PRIO_QUEUEING;
 275                 card->qdio.default_out_queue = 2;
 276         } else if (!strcmp(tmp, "no_prio_queueing:3")) {
 277                 card->qdio.do_prio_queueing = QETH_NO_PRIO_QUEUEING;
 278                 card->qdio.default_out_queue = 3;
 279         } else if (!strcmp(tmp, "no_prio_queueing")) {
 280                 card->qdio.do_prio_queueing = QETH_NO_PRIO_QUEUEING;
 281                 card->qdio.default_out_queue = QETH_DEFAULT_QUEUE;
 282         } else {
 283                 PRINT_WARN("Unknown queueing type '%s'\n", tmp);
 284                 return -EINVAL;
 285         }
 286         return count;
 287 }
 288
 289 static DEVICE_ATTR(priority_queueing, 0644, qeth_dev_prioqing_show,
 290                 qeth_dev_prioqing_store);
 291
 292 static ssize_t
 293 qeth_dev_bufcnt_show(struct device *dev, struct device_attribute *attr, char *buf)
 294 {
 295         struct qeth_card *card = dev->driver_data;
 296
 297         if (!card)
 298                 return -EINVAL;
 299
 300         return sprintf(buf, "%i\n", card->qdio.in_buf_pool.buf_count);
 301 }
 302
 303 static ssize_t
 304 qeth_dev_bufcnt_store(struct device *dev, struct device_attribute *attr, const char *buf, size_t count)
 305 {
 306         struct qeth_card *card = dev->driver_data;
 307         char *tmp;
 308         int cnt, old_cnt;
 309         int rc;
 310
 311         if (!card)
 312                 return -EINVAL;
 313
 314         if ((card->state != CARD_STATE_DOWN) &&
 315             (card->state != CARD_STATE_RECOVER))
 316                 return -EPERM;
 317
 318         old_cnt = card->qdio.in_buf_pool.buf_count;
 319         cnt = simple_strtoul(buf, &tmp, 10);
 320         cnt = (cnt < QETH_IN_BUF_COUNT_MIN) ? QETH_IN_BUF_COUNT_MIN :
 321                 ((cnt > QETH_IN_BUF_COUNT_MAX) ? QETH_IN_BUF_COUNT_MAX : cnt);
 322         if (old_cnt != cnt) {
 323                 if ((rc = qeth_realloc_buffer_pool(card, cnt)))
 324                         PRINT_WARN("Error (%d) while setting "
 325                                    "buffer count.\n", rc);
 326         }
 327         return count;
 328 }
 329
 330 static DEVICE_ATTR(buffer_count, 0644, qeth_dev_bufcnt_show,
 331                 qeth_dev_bufcnt_store);
 332
 333 static inline ssize_t
 334 qeth_dev_route_show(struct qeth_card *card, struct qeth_routing_info *route,
 335                     char *buf)
 336 {
 337         switch (route->type) {
 338         case PRIMARY_ROUTER:
 339                 return sprintf(buf, "%s\n", "primary router");
 340         case SECONDARY_ROUTER:
 341                 return sprintf(buf, "%s\n", "secondary router");
 342         case MULTICAST_ROUTER:
 343                 if (card->info.broadcast_capable == QETH_BROADCAST_WITHOUT_ECHO)
 344                         return sprintf(buf, "%s\n", "multicast router+");
 345                 else
 346                         return sprintf(buf, "%s\n", "multicast router");
 347         case PRIMARY_CONNECTOR:
 348                 if (card->info.broadcast_capable == QETH_BROADCAST_WITHOUT_ECHO)
 349                         return sprintf(buf, "%s\n", "primary connector+");
 350                 else
 351                         return sprintf(buf, "%s\n", "primary connector");
 352         case SECONDARY_CONNECTOR:
 353                 if (card->info.broadcast_capable == QETH_BROADCAST_WITHOUT_ECHO)
 354                         return sprintf(buf, "%s\n", "secondary connector+");
 355                 else
 356                         return sprintf(buf, "%s\n", "secondary connector");
 357         default:
 358                 return sprintf(buf, "%s\n", "no");
 359         }
 360 }
 361
 362 static ssize_t
 363 qeth_dev_route4_show(struct device *dev, struct device_attribute *attr, char *buf)
 364 {
 365         struct qeth_card *card = dev->driver_data;
 366
 367         if (!card)
 368                 return -EINVAL;
 369
 370         return qeth_dev_route_show(card, &card->options.route4, buf);
 371 }
 372
 373 static inline ssize_t
 374 qeth_dev_route_store(struct qeth_card *card, struct qeth_routing_info *route,
 375                 enum qeth_prot_versions prot, const char *buf, size_t count)
 376 {
 377         enum qeth_routing_types old_route_type = route->type;
 378         char *tmp;
 379         int rc;
 380
 381         tmp = strsep((char **) &buf, "\n");
 382
 383         if (!strcmp(tmp, "no_router")){
 384                 route->type = NO_ROUTER;
 385         } else if (!strcmp(tmp, "primary_connector")) {
 386                 route->type = PRIMARY_CONNECTOR;
 387         } else if (!strcmp(tmp, "secondary_connector")) {
 388                 route->type = SECONDARY_CONNECTOR;
 389         } else if (!strcmp(tmp, "multicast_router")) {
 390                 route->type = MULTICAST_ROUTER;
 391         } else if (!strcmp(tmp, "primary_router")) {
 392                 route->type = PRIMARY_ROUTER;
 393         } else if (!strcmp(tmp, "secondary_router")) {
 394                 route->type = SECONDARY_ROUTER;
 395         } else if (!strcmp(tmp, "multicast_router")) {
 396                 route->type = MULTICAST_ROUTER;
 397         } else {
 398                 PRINT_WARN("Invalid routing type '%s'.\n", tmp);
 399                 return -EINVAL;
 400         }
 401         if (((card->state == CARD_STATE_SOFTSETUP) ||
 402              (card->state == CARD_STATE_UP)) &&
 403             (old_route_type != route->type)){
 404                 if (prot == QETH_PROT_IPV4)
 405                         rc = qeth_setrouting_v4(card);
 406                 else if (prot == QETH_PROT_IPV6)
 407                         rc = qeth_setrouting_v6(card);
 408         }
 409         return count;
 410 }
 411
 412 static ssize_t
 413 qeth_dev_route4_store(struct device *dev, struct device_attribute *attr, const char *buf, size_t count)
 414 {
 415         struct qeth_card *card = dev->driver_data;
 416
 417         if (!card)
 418                 return -EINVAL;
 419
 420         return qeth_dev_route_store(card, &card->options.route4,
 421                                     QETH_PROT_IPV4, buf, count);
 422 }
 423
 424 static DEVICE_ATTR(route4, 0644, qeth_dev_route4_show, qeth_dev_route4_store);
 425
 426 #ifdef CONFIG_QETH_IPV6
 427 static ssize_t
 428 qeth_dev_route6_show(struct device *dev, struct device_attribute *attr, char *buf)
 429 {
 430         struct qeth_card *card = dev->driver_data;
 431
 432         if (!card)
 433                 return -EINVAL;
 434
 435         if (!qeth_is_supported(card, IPA_IPV6))
 436                 return sprintf(buf, "%s\n", "n/a");
 437
 438         return qeth_dev_route_show(card, &card->options.route6, buf);
 439 }
 440
 441 static ssize_t
 442 qeth_dev_route6_store(struct device *dev, struct device_attribute *attr, const char *buf, size_t count)
 443 {
 444         struct qeth_card *card = dev->driver_data;
 445
 446         if (!card)
 447                 return -EINVAL;
 448
 449         if (!qeth_is_supported(card, IPA_IPV6)){
 450                 PRINT_WARN("IPv6 not supported for interface %s.\n"
 451                            "Routing status no changed.\n",
 452                            QETH_CARD_IFNAME(card));
 453                 return -ENOTSUPP;
 454         }
 455
 456         return qeth_dev_route_store(card, &card->options.route6,
 457                                     QETH_PROT_IPV6, buf, count);
 458 }
 459
 460 static DEVICE_ATTR(route6, 0644, qeth_dev_route6_show, qeth_dev_route6_store);
 461 #endif
 462
 463 static ssize_t
 464 qeth_dev_add_hhlen_show(struct device *dev, struct device_attribute *attr, char *buf)
 465 {
 466         struct qeth_card *card = dev->driver_data;
 467
 468         if (!card)
 469                 return -EINVAL;
 470
 471         return sprintf(buf, "%i\n", card->options.add_hhlen);
 472 }
 473
 474 static ssize_t
 475 qeth_dev_add_hhlen_store(struct device *dev, struct device_attribute *attr, const char *buf, size_t count)
 476 {
 477         struct qeth_card *card = dev->driver_data;
 478         char *tmp;
 479         int i;
 480
 481         if (!card)
 482                 return -EINVAL;
 483
 484         if ((card->state != CARD_STATE_DOWN) &&
 485             (card->state != CARD_STATE_RECOVER))
 486                 return -EPERM;
 487
 488         i = simple_strtoul(buf, &tmp, 10);
 489         if ((i < 0) || (i > MAX_ADD_HHLEN)) {
 490                 PRINT_WARN("add_hhlen out of range\n");
 491                 return -EINVAL;
 492         }
 493         card->options.add_hhlen = i;
 494
 495         return count;
 496 }
 497
 498 static DEVICE_ATTR(add_hhlen, 0644, qeth_dev_add_hhlen_show,
 499                    qeth_dev_add_hhlen_store);
 500
 501 static ssize_t
 502 qeth_dev_fake_ll_show(struct device *dev, struct device_attribute *attr, char *buf)
 503 {
 504         struct qeth_card *card = dev->driver_data;
 505
 506         if (!card)
 507                 return -EINVAL;
 508
 509         return sprintf(buf, "%i\n", card->options.fake_ll? 1:0);
 510 }
 511
 512 static ssize_t
 513 qeth_dev_fake_ll_store(struct device *dev, struct device_attribute *attr, const char *buf, size_t count)
 514 {
 515         struct qeth_card *card = dev->driver_data;
 516         char *tmp;
 517         int i;
 518
 519         if (!card)
 520                 return -EINVAL;
 521
 522         if ((card->state != CARD_STATE_DOWN) &&
 523             (card->state != CARD_STATE_RECOVER))
 524                 return -EPERM;
 525
 526         i = simple_strtoul(buf, &tmp, 16);
 527         if ((i != 0) && (i != 1)) {
 528                 PRINT_WARN("fake_ll: write 0 or 1 to this file!\n");
 529                 return -EINVAL;
 530         }
 531         card->options.fake_ll = i;
 532         return count;
 533 }
 534
 535 static DEVICE_ATTR(fake_ll, 0644, qeth_dev_fake_ll_show,
 536                    qeth_dev_fake_ll_store);
 537
 538 static ssize_t
 539 qeth_dev_fake_broadcast_show(struct device *dev, struct device_attribute *attr, char *buf)
 540 {
 541         struct qeth_card *card = dev->driver_data;
 542
 543         if (!card)
 544                 return -EINVAL;
 545
 546         return sprintf(buf, "%i\n", card->options.fake_broadcast? 1:0);
 547 }
 548
 549 static ssize_t
 550 qeth_dev_fake_broadcast_store(struct device *dev, struct device_attribute *attr, const char *buf, size_t count)
 551 {
 552         struct qeth_card *card = dev->driver_data;
 553         char *tmp;
 554         int i;
 555
 556         if (!card)
 557                 return -EINVAL;
 558
 559         if ((card->state != CARD_STATE_DOWN) &&
 560             (card->state != CARD_STATE_RECOVER))
 561                 return -EPERM;
 562
 563         i = simple_strtoul(buf, &tmp, 16);
 564         if ((i == 0) || (i == 1))
 565                 card->options.fake_broadcast = i;
 566         else {
 567                 PRINT_WARN("fake_broadcast: write 0 or 1 to this file!\n");
 568                 return -EINVAL;
 569         }
 570         return count;
 571 }
 572
 573 static DEVICE_ATTR(fake_broadcast, 0644, qeth_dev_fake_broadcast_show,
 574                    qeth_dev_fake_broadcast_store);
 575
 576 static ssize_t
 577 qeth_dev_recover_store(struct device *dev, struct device_attribute *attr, const char *buf, size_t count)
 578 {
 579         struct qeth_card *card = dev->driver_data;
 580         char *tmp;
 581         int i;
 582
 583         if (!card)
 584                 return -EINVAL;
 585
 586         if (card->state != CARD_STATE_UP)
 587                 return -EPERM;
 588
 589         i = simple_strtoul(buf, &tmp, 16);
 590         if (i == 1)
 591                 qeth_schedule_recovery(card);
 592
 593         return count;
 594 }
 595
 596 static DEVICE_ATTR(recover, 0200, NULL, qeth_dev_recover_store);
 597
 598 static ssize_t
 599 qeth_dev_broadcast_mode_show(struct device *dev, struct device_attribute *attr, char *buf)
 600 {
 601         struct qeth_card *card = dev->driver_data;
 602
 603         if (!card)
 604                 return -EINVAL;
 605
 606         if (!((card->info.link_type == QETH_LINK_TYPE_HSTR) ||
 607               (card->info.link_type == QETH_LINK_TYPE_LANE_TR)))
 608                 return sprintf(buf, "n/a\n");
 609
 610         return sprintf(buf, "%s\n", (card->options.broadcast_mode ==
 611                                      QETH_TR_BROADCAST_ALLRINGS)?
 612                        "all rings":"local");
 613 }
 614
 615 static ssize_t
 616 qeth_dev_broadcast_mode_store(struct device *dev, struct device_attribute *attr, const char *buf, size_t count)
 617 {
 618         struct qeth_card *card = dev->driver_data;
 619         char *tmp;
 620
 621         if (!card)
 622                 return -EINVAL;
 623
 624         if ((card->state != CARD_STATE_DOWN) &&
 625             (card->state != CARD_STATE_RECOVER))
 626                 return -EPERM;
 627
 628         if (!((card->info.link_type == QETH_LINK_TYPE_HSTR) ||
 629               (card->info.link_type == QETH_LINK_TYPE_LANE_TR))){
 630                 PRINT_WARN("Device is not a tokenring device!\n");
 631                 return -EINVAL;
 632         }
 633
 634         tmp = strsep((char **) &buf, "\n");
 635
 636         if (!strcmp(tmp, "local")){
 637                 card->options.broadcast_mode = QETH_TR_BROADCAST_LOCAL;
 638                 return count;
 639         } else if (!strcmp(tmp, "all_rings")) {
 640                 card->options.broadcast_mode = QETH_TR_BROADCAST_ALLRINGS;
 641                 return count;
 642         } else {
 643                 PRINT_WARN("broadcast_mode: invalid mode %s!\n",
 644                            tmp);
 645                 return -EINVAL;
 646         }
 647         return count;
 648 }
 649
 650 static DEVICE_ATTR(broadcast_mode, 0644, qeth_dev_broadcast_mode_show,
 651                    qeth_dev_broadcast_mode_store);
 652
 653 static ssize_t
 654 qeth_dev_canonical_macaddr_show(struct device *dev, struct device_attribute *attr, char *buf)
 655 {
 656         struct qeth_card *card = dev->driver_data;
 657
 658         if (!card)
 659                 return -EINVAL;
 660
 661         if (!((card->info.link_type == QETH_LINK_TYPE_HSTR) ||
 662               (card->info.link_type == QETH_LINK_TYPE_LANE_TR)))
 663                 return sprintf(buf, "n/a\n");
 664
 665         return sprintf(buf, "%i\n", (card->options.macaddr_mode ==
 666                                      QETH_TR_MACADDR_CANONICAL)? 1:0);
 667 }
 668
 669 static ssize_t
 670 qeth_dev_canonical_macaddr_store(struct device *dev, struct device_attribute *attr, const char *buf,
 671                                   size_t count)
 672 {
 673         struct qeth_card *card = dev->driver_data;
 674         char *tmp;
 675         int i;
 676
 677         if (!card)
 678                 return -EINVAL;
 679
 680         if ((card->state != CARD_STATE_DOWN) &&
 681             (card->state != CARD_STATE_RECOVER))
 682                 return -EPERM;
 683
 684         if (!((card->info.link_type == QETH_LINK_TYPE_HSTR) ||
 685               (card->info.link_type == QETH_LINK_TYPE_LANE_TR))){
 686                 PRINT_WARN("Device is not a tokenring device!\n");
 687                 return -EINVAL;
 688         }
 689
 690         i = simple_strtoul(buf, &tmp, 16);
 691         if ((i == 0) || (i == 1))
 692                 card->options.macaddr_mode = i?
 693                         QETH_TR_MACADDR_CANONICAL :
 694                         QETH_TR_MACADDR_NONCANONICAL;
 695         else {
 696                 PRINT_WARN("canonical_macaddr: write 0 or 1 to this file!\n");
 697                 return -EINVAL;
 698         }
 699         return count;
 700 }
 701
 702 static DEVICE_ATTR(canonical_macaddr, 0644, qeth_dev_canonical_macaddr_show,
 703                    qeth_dev_canonical_macaddr_store);
 704
 705 static ssize_t
 706 qeth_dev_layer2_show(struct device *dev, struct device_attribute *attr, char *buf)
 707 {
 708         struct qeth_card *card = dev->driver_data;
 709
 710         if (!card)
 711                 return -EINVAL;
 712
 713         return sprintf(buf, "%i\n", card->options.layer2 ? 1:0);
 714 }
 715
 716 static ssize_t
 717 qeth_dev_layer2_store(struct device *dev, struct device_attribute *attr, const char *buf, size_t count)
 718 {
 719         struct qeth_card *card = dev->driver_data;
 720         char *tmp;
 721         int i;
 722
 723         if (!card)
 724                 return -EINVAL;
 725
 726         if (((card->state != CARD_STATE_DOWN) &&
 727              (card->state != CARD_STATE_RECOVER)) ||
 728             (card->info.type != QETH_CARD_TYPE_OSAE))
 729                 return -EPERM;
 730
 731         i = simple_strtoul(buf, &tmp, 16);
 732         if ((i == 0) || (i == 1))
 733                 card->options.layer2 = i;
 734         else {
 735                 PRINT_WARN("layer2: write 0 or 1 to this file!\n");
 736                 return -EINVAL;
 737         }
 738         return count;
 739 }
 740
 741 static DEVICE_ATTR(layer2, 0644, qeth_dev_layer2_show,
 742                    qeth_dev_layer2_store);
 743
 744 static ssize_t
 745 qeth_dev_large_send_show(struct device *dev, struct device_attribute *attr, char *buf)
 746 {
 747         struct qeth_card *card = dev->driver_data;
 748
 749         if (!card)
 750                 return -EINVAL;
 751
 752         switch (card->options.large_send) {
 753         case QETH_LARGE_SEND_NO:
 754                 return sprintf(buf, "%s\n", "no");
 755         case QETH_LARGE_SEND_EDDP:
 756                 return sprintf(buf, "%s\n", "EDDP");
 757         case QETH_LARGE_SEND_TSO:
 758                 return sprintf(buf, "%s\n", "TSO");
 759         default:
 760                 return sprintf(buf, "%s\n", "N/A");
 761         }
 762 }
 763
 764 static ssize_t
 765 qeth_dev_large_send_store(struct device *dev, struct device_attribute *attr, const char *buf, size_t count)
 766 {
 767         struct qeth_card *card = dev->driver_data;
 768         enum qeth_large_send_types type;
 769         int rc = 0;
 770         char *tmp;
 771
 772         if (!card)
 773                 return -EINVAL;
 774
 775         tmp = strsep((char **) &buf, "\n");
 776
 777         if (!strcmp(tmp, "no")){
 778                 type = QETH_LARGE_SEND_NO;
 779         } else if (!strcmp(tmp, "EDDP")) {
 780                 type = QETH_LARGE_SEND_EDDP;
 781         } else if (!strcmp(tmp, "TSO")) {
 782                 type = QETH_LARGE_SEND_TSO;
 783         } else {
 784                 PRINT_WARN("large_send: invalid mode %s!\n", tmp);
 785                 return -EINVAL;
 786         }
 787         if (card->options.large_send == type)
 788                 return count;
 789         card->options.large_send = type;
 790         if ((rc = qeth_set_large_send(card)))
 791                 return rc;
 792
 793         return count;
 794 }
 795
 796 static DEVICE_ATTR(large_send, 0644, qeth_dev_large_send_show,
 797                    qeth_dev_large_send_store);
 798
 799 static ssize_t
 800 qeth_dev_blkt_show(char *buf, struct qeth_card *card, int value )
 801 {
 802
 803         if (!card)
 804                 return -EINVAL;
 805
 806         return sprintf(buf, "%i\n", value);
 807 }
 808
 809 static ssize_t
 810 qeth_dev_blkt_store(struct qeth_card *card, const char *buf, size_t count,
 811                           int *value, int max_value)
 812 {
 813         char *tmp;
 814         int i;
 815
 816         if (!card)
 817                 return -EINVAL;
 818
 819         if ((card->state != CARD_STATE_DOWN) &&
 820             (card->state != CARD_STATE_RECOVER))
 821                 return -EPERM;
 822
 823         i = simple_strtoul(buf, &tmp, 10);
 824         if (i <= max_value) {
 825                 *value = i;
 826         } else {
 827                 PRINT_WARN("blkt total time: write values between"
 828                            " 0 and %d to this file!\n", max_value);
 829                 return -EINVAL;
 830         }
 831         return count;
 832 }
 833
 834 static ssize_t
 835 qeth_dev_blkt_total_show(struct device *dev, struct device_attribute *attr, char *buf)
 836 {
 837         struct qeth_card *card = dev->driver_data;
 838
 839         return qeth_dev_blkt_show(buf, card, card->info.blkt.time_total);
 840 }
 841
 842
 843 static ssize_t
 844 qeth_dev_blkt_total_store(struct device *dev, struct device_attribute *attr, const char *buf, size_t count)
 845 {
 846         struct qeth_card *card = dev->driver_data;
 847
 848         return qeth_dev_blkt_store(card, buf, count,
 849                                    &card->info.blkt.time_total,1000);
 850 }
 851
 852
 853
 854 static DEVICE_ATTR(total, 0644, qeth_dev_blkt_total_show,
 855                    qeth_dev_blkt_total_store);
 856
 857 static ssize_t
 858 qeth_dev_blkt_inter_show(struct device *dev, struct device_attribute *attr, char *buf)
 859 {
 860         struct qeth_card *card = dev->driver_data;
 861
 862         return qeth_dev_blkt_show(buf, card, card->info.blkt.inter_packet);
 863 }
 864
 865
 866 static ssize_t
 867 qeth_dev_blkt_inter_store(struct device *dev, struct device_attribute *attr, const char *buf, size_t count)
 868 {
 869         struct qeth_card *card = dev->driver_data;
 870
 871         return qeth_dev_blkt_store(card, buf, count,
 872                                    &card->info.blkt.inter_packet,100);
 873 }
 874
 875 static DEVICE_ATTR(inter, 0644, qeth_dev_blkt_inter_show,
 876                    qeth_dev_blkt_inter_store);
 877
 878 static ssize_t
 879 qeth_dev_blkt_inter_jumbo_show(struct device *dev, struct device_attribute *attr, char *buf)
 880 {
 881         struct qeth_card *card = dev->driver_data;
 882
 883         return qeth_dev_blkt_show(buf, card,
 884                                   card->info.blkt.inter_packet_jumbo);
 885 }
 886
 887
 888 static ssize_t
 889 qeth_dev_blkt_inter_jumbo_store(struct device *dev, struct device_attribute *attr, const char *buf, size_t count)
 890 {
 891         struct qeth_card *card = dev->driver_data;
 892
 893         return qeth_dev_blkt_store(card, buf, count,
 894                                    &card->info.blkt.inter_packet_jumbo,100);
 895 }
 896
 897 static DEVICE_ATTR(inter_jumbo, 0644, qeth_dev_blkt_inter_jumbo_show,
 898                    qeth_dev_blkt_inter_jumbo_store);
 899
 900 static struct device_attribute * qeth_blkt_device_attrs[] = {
 901         &dev_attr_total,
 902         &dev_attr_inter,
 903         &dev_attr_inter_jumbo,
 904         NULL,
 905 };
 906
 907 static struct attribute_group qeth_device_blkt_group = {
 908         .name = "blkt",
 909         .attrs = (struct attribute **)qeth_blkt_device_attrs,
 910 };
 911
 912 static struct device_attribute * qeth_device_attrs[] = {
 913         &dev_attr_state,
 914         &dev_attr_chpid,
 915         &dev_attr_if_name,
 916         &dev_attr_card_type,
 917         &dev_attr_portno,
 918         &dev_attr_portname,
 919         &dev_attr_checksumming,
 920         &dev_attr_priority_queueing,
 921         &dev_attr_buffer_count,
 922         &dev_attr_route4,
 923 #ifdef CONFIG_QETH_IPV6
 924         &dev_attr_route6,
 925 #endif
 926         &dev_attr_add_hhlen,
 927         &dev_attr_fake_ll,
 928         &dev_attr_fake_broadcast,
 929         &dev_attr_recover,
 930         &dev_attr_broadcast_mode,
 931         &dev_attr_canonical_macaddr,
 932         &dev_attr_layer2,
 933         &dev_attr_large_send,
 934         NULL,
 935 };
 936
 937 static struct attribute_group qeth_device_attr_group = {
 938         .attrs = (struct attribute **)qeth_device_attrs,
 939 };
 940
 941
 942 #define QETH_DEVICE_ATTR(_id,_name,_mode,_show,_store)                       \
 943 struct device_attribute dev_attr_##_id = {                                   \
 944         .attr = {.name=__stringify(_name), .mode=_mode, .owner=THIS_MODULE },\
 945         .show   = _show,                                                     \
 946         .store  = _store,                                                    \
 947 };
 948
 949 int
 950 qeth_check_layer2(struct qeth_card *card)
 951 {
 952         if (card->options.layer2)
 953                 return -EPERM;
 954         return 0;
 955 }
 956
 957
 958 static ssize_t
 959 qeth_dev_ipato_enable_show(struct device *dev, struct device_attribute *attr, char *buf)
 960 {
 961         struct qeth_card *card = dev->driver_data;
 962
 963         if (!card)
 964                 return -EINVAL;
 965
 966         if (qeth_check_layer2(card))
 967                 return -EPERM;
 968         return sprintf(buf, "%i\n", card->ipato.enabled? 1:0);
 969 }
 970
 971 static ssize_t
 972 qeth_dev_ipato_enable_store(struct device *dev, struct device_attribute *attr, const char *buf, size_t count)
 973 {
 974         struct qeth_card *card = dev->driver_data;
 975         char *tmp;
 976
 977         if (!card)
 978                 return -EINVAL;
 979
 980         if ((card->state != CARD_STATE_DOWN) &&
 981             (card->state != CARD_STATE_RECOVER))
 982                 return -EPERM;
 983
 984         if (qeth_check_layer2(card))
 985                 return -EPERM;
 986
 987         tmp = strsep((char **) &buf, "\n");
 988         if (!strcmp(tmp, "toggle")){
 989                 card->ipato.enabled = (card->ipato.enabled)? 0 : 1;
 990         } else if (!strcmp(tmp, "1")){
 991                 card->ipato.enabled = 1;
 992         } else if (!strcmp(tmp, "0")){
 993                 card->ipato.enabled = 0;
 994         } else {
 995                 PRINT_WARN("ipato_enable: write 0, 1 or 'toggle' to "
 996                            "this file\n");
 997                 return -EINVAL;
 998         }
 999         return count;
1000 }
1001
1002 static QETH_DEVICE_ATTR(ipato_enable, enable, 0644,
1003                         qeth_dev_ipato_enable_show,
1004                         qeth_dev_ipato_enable_store);
1005
1006 static ssize_t
1007 qeth_dev_ipato_invert4_show(struct device *dev, struct device_attribute *attr, char *buf)
1008 {
1009         struct qeth_card *card = dev->driver_data;
1010
1011         if (!card)
1012                 return -EINVAL;
1013
1014         if (qeth_check_layer2(card))
1015                 return -EPERM;
1016
1017         return sprintf(buf, "%i\n", card->ipato.invert4? 1:0);
1018 }
1019
1020 static ssize_t
1021 qeth_dev_ipato_invert4_store(struct device *dev, struct device_attribute *attr, const char *buf, size_t count)
1022 {
1023         struct qeth_card *card = dev->driver_data;
1024         char *tmp;
1025
1026         if (!card)
1027                 return -EINVAL;
1028
1029         if (qeth_check_layer2(card))
1030                 return -EPERM;
1031
1032         tmp = strsep((char **) &buf, "\n");
1033         if (!strcmp(tmp, "toggle")){
1034                 card->ipato.invert4 = (card->ipato.invert4)? 0 : 1;
1035         } else if (!strcmp(tmp, "1")){
1036                 card->ipato.invert4 = 1;
1037         } else if (!strcmp(tmp, "0")){
1038                 card->ipato.invert4 = 0;
1039         } else {
1040                 PRINT_WARN("ipato_invert4: write 0, 1 or 'toggle' to "
1041                            "this file\n");
1042                 return -EINVAL;
1043         }
1044         return count;
1045 }
1046
1047 static QETH_DEVICE_ATTR(ipato_invert4, invert4, 0644,
1048                         qeth_dev_ipato_invert4_show,
1049                         qeth_dev_ipato_invert4_store);
1050
1051 static inline ssize_t
1052 qeth_dev_ipato_add_show(char *buf, struct qeth_card *card,
1053                         enum qeth_prot_versions proto)
1054 {
1055         struct qeth_ipato_entry *ipatoe;
1056         unsigned long flags;
1057         char addr_str[40];
1058         int entry_len; /* length of 1 entry string, differs between v4 and v6 */
1059         int i = 0;
1060
1061         if (qeth_check_layer2(card))
1062                 return -EPERM;
1063
1064         entry_len = (proto == QETH_PROT_IPV4)? 12 : 40;
1065         /* add strlen for "/<mask>\n" */
1066         entry_len += (proto == QETH_PROT_IPV4)? 5 : 6;
1067         spin_lock_irqsave(&card->ip_lock, flags);
1068         list_for_each_entry(ipatoe, &card->ipato.entries, entry){
1069                 if (ipatoe->proto != proto)
1070                         continue;
1071                 /* String must not be longer than PAGE_SIZE. So we check if
1072                  * string length gets near PAGE_SIZE. Then we can savely display
1073                  * the next IPv6 address (worst case, compared to IPv4) */
1074                 if ((PAGE_SIZE - i) <= entry_len)
1075                         break;
1076                 qeth_ipaddr_to_string(proto, ipatoe->addr, addr_str);
1077                 i += snprintf(buf + i, PAGE_SIZE - i,
1078                               "%s/%i\n", addr_str, ipatoe->mask_bits);
1079         }
1080         spin_unlock_irqrestore(&card->ip_lock, flags);
1081         i += snprintf(buf + i, PAGE_SIZE - i, "\n");
1082
1083         return i;
1084 }
1085
1086 static ssize_t
1087 qeth_dev_ipato_add4_show(struct device *dev, struct device_attribute *attr, char *buf)
1088 {
1089         struct qeth_card *card = dev->driver_data;
1090
1091         if (!card)
1092                 return -EINVAL;
1093
1094         return qeth_dev_ipato_add_show(buf, card, QETH_PROT_IPV4);
1095 }
1096
1097 static inline int
1098 qeth_parse_ipatoe(const char* buf, enum qeth_prot_versions proto,
1099                   u8 *addr, int *mask_bits)
1100 {
1101         const char *start, *end;
1102         char *tmp;
1103         char buffer[49] = {0, };
1104
1105         start = buf;
1106         /* get address string */
1107         end = strchr(start, '/');
1108         if (!end){
1109                 PRINT_WARN("Invalid format for ipato_addx/delx. "
1110                            "Use <ip addr>/<mask bits>\n");
1111                 return -EINVAL;
1112         }
1113         strncpy(buffer, start, end - start);
1114         if (qeth_string_to_ipaddr(buffer, proto, addr)){
1115                 PRINT_WARN("Invalid IP address format!\n");
1116                 return -EINVAL;
1117         }
1118         start = end + 1;
1119         *mask_bits = simple_strtoul(start, &tmp, 10);
1120
1121         return 0;
1122 }
1123
1124 static inline ssize_t
1125 qeth_dev_ipato_add_store(const char *buf, size_t count,
1126                          struct qeth_card *card, enum qeth_prot_versions proto)
1127 {
1128         struct qeth_ipato_entry *ipatoe;
1129         u8 addr[16];
1130         int mask_bits;
1131         int rc;
1132
1133         if (qeth_check_layer2(card))
1134                 return -EPERM;
1135         if ((rc = qeth_parse_ipatoe(buf, proto, addr, &mask_bits)))
1136                 return rc;
1137
1138         if (!(ipatoe = kmalloc(sizeof(struct qeth_ipato_entry), GFP_KERNEL))){
1139                 PRINT_WARN("No memory to allocate ipato entry\n");
1140                 return -ENOMEM;
1141         }
1142         memset(ipatoe, 0, sizeof(struct qeth_ipato_entry));
1143         ipatoe->proto = proto;
1144         memcpy(ipatoe->addr, addr, (proto == QETH_PROT_IPV4)? 4:16);
1145         ipatoe->mask_bits = mask_bits;
1146
1147         if ((rc = qeth_add_ipato_entry(card, ipatoe))){
1148                 kfree(ipatoe);
1149                 return rc;
1150         }
1151
1152         return count;
1153 }
1154
1155 static ssize_t
1156 qeth_dev_ipato_add4_store(struct device *dev, struct device_attribute *attr, const char *buf, size_t count)
1157 {
1158         struct qeth_card *card = dev->driver_data;
1159
1160         if (!card)
1161                 return -EINVAL;
1162
1163         return qeth_dev_ipato_add_store(buf, count, card, QETH_PROT_IPV4);
1164 }
1165
1166 static QETH_DEVICE_ATTR(ipato_add4, add4, 0644,
1167                         qeth_dev_ipato_add4_show,
1168                         qeth_dev_ipato_add4_store);
1169
1170 static inline ssize_t
1171 qeth_dev_ipato_del_store(const char *buf, size_t count,
1172                          struct qeth_card *card, enum qeth_prot_versions proto)
1173 {
1174         u8 addr[16];
1175         int mask_bits;
1176         int rc;
1177
1178         if (qeth_check_layer2(card))
1179                 return -EPERM;
1180         if ((rc = qeth_parse_ipatoe(buf, proto, addr, &mask_bits)))
1181                 return rc;
1182
1183         qeth_del_ipato_entry(card, proto, addr, mask_bits);
1184
1185         return count;
1186 }
1187
1188 static ssize_t
1189 qeth_dev_ipato_del4_store(struct device *dev, struct device_attribute *attr, const char *buf, size_t count)
1190 {
1191         struct qeth_card *card = dev->driver_data;
1192
1193         if (!card)
1194                 return -EINVAL;
1195
1196         return qeth_dev_ipato_del_store(buf, count, card, QETH_PROT_IPV4);
1197 }
1198
1199 static QETH_DEVICE_ATTR(ipato_del4, del4, 0200, NULL,
1200                         qeth_dev_ipato_del4_store);
1201
1202 #ifdef CONFIG_QETH_IPV6
1203 static ssize_t
1204 qeth_dev_ipato_invert6_show(struct device *dev, struct device_attribute *attr, char *buf)
1205 {
1206         struct qeth_card *card = dev->driver_data;
1207
1208         if (!card)
1209                 return -EINVAL;
1210
1211         if (qeth_check_layer2(card))
1212                 return -EPERM;
1213
1214         return sprintf(buf, "%i\n", card->ipato.invert6? 1:0);
1215 }
1216
1217 static ssize_t
1218 qeth_dev_ipato_invert6_store(struct device *dev, struct device_attribute *attr, const char *buf, size_t count)
1219 {
1220         struct qeth_card *card = dev->driver_data;
1221         char *tmp;
1222
1223         if (!card)
1224                 return -EINVAL;
1225
1226         if (qeth_check_layer2(card))
1227                 return -EPERM;
1228
1229         tmp = strsep((char **) &buf, "\n");
1230         if (!strcmp(tmp, "toggle")){
1231                 card->ipato.invert6 = (card->ipato.invert6)? 0 : 1;
1232         } else if (!strcmp(tmp, "1")){
1233                 card->ipato.invert6 = 1;
1234         } else if (!strcmp(tmp, "0")){
1235                 card->ipato.invert6 = 0;
1236         } else {
1237                 PRINT_WARN("ipato_invert6: write 0, 1 or 'toggle' to "
1238                            "this file\n");
1239                 return -EINVAL;
1240         }
1241         return count;
1242 }
1243
1244 static QETH_DEVICE_ATTR(ipato_invert6, invert6, 0644,
1245                         qeth_dev_ipato_invert6_show,
1246                         qeth_dev_ipato_invert6_store);
1247
1248
1249 static ssize_t
1250 qeth_dev_ipato_add6_show(struct device *dev, struct device_attribute *attr, char *buf)
1251 {
1252         struct qeth_card *card = dev->driver_data;
1253
1254         if (!card)
1255                 return -EINVAL;
1256
1257         return qeth_dev_ipato_add_show(buf, card, QETH_PROT_IPV6);
1258 }
1259
1260 static ssize_t
1261 qeth_dev_ipato_add6_store(struct device *dev, struct device_attribute *attr, const char *buf, size_t count)
1262 {
1263         struct qeth_card *card = dev->driver_data;
1264
1265         if (!card)
1266                 return -EINVAL;
1267
1268         return qeth_dev_ipato_add_store(buf, count, card, QETH_PROT_IPV6);
1269 }
1270
1271 static QETH_DEVICE_ATTR(ipato_add6, add6, 0644,
1272                         qeth_dev_ipato_add6_show,
1273                         qeth_dev_ipato_add6_store);
1274
1275 static ssize_t
1276 qeth_dev_ipato_del6_store(struct device *dev, struct device_attribute *attr, const char *buf, size_t count)
1277 {
1278         struct qeth_card *card = dev->driver_data;
1279
1280         if (!card)
1281                 return -EINVAL;
1282
1283         return qeth_dev_ipato_del_store(buf, count, card, QETH_PROT_IPV6);
1284 }
1285
1286 static QETH_DEVICE_ATTR(ipato_del6, del6, 0200, NULL,
1287                         qeth_dev_ipato_del6_store);
1288 #endif /* CONFIG_QETH_IPV6 */
1289
1290 static struct device_attribute * qeth_ipato_device_attrs[] = {
1291         &dev_attr_ipato_enable,
1292         &dev_attr_ipato_invert4,
1293         &dev_attr_ipato_add4,
1294         &dev_attr_ipato_del4,
1295 #ifdef CONFIG_QETH_IPV6
1296         &dev_attr_ipato_invert6,
1297         &dev_attr_ipato_add6,
1298         &dev_attr_ipato_del6,
1299 #endif
1300         NULL,
1301 };
1302
1303 static struct attribute_group qeth_device_ipato_group = {
1304         .name = "ipa_takeover",
1305         .attrs = (struct attribute **)qeth_ipato_device_attrs,
1306 };
1307
1308 static inline ssize_t
1309 qeth_dev_vipa_add_show(char *buf, struct qeth_card *card,
1310                         enum qeth_prot_versions proto)
1311 {
1312         struct qeth_ipaddr *ipaddr;
1313         char addr_str[40];
1314         int entry_len; /* length of 1 entry string, differs between v4 and v6 */
1315         unsigned long flags;
1316         int i = 0;
1317
1318         if (qeth_check_layer2(card))
1319                 return -EPERM;
1320
1321         entry_len = (proto == QETH_PROT_IPV4)? 12 : 40;
1322         entry_len += 2; /* \n + terminator */
1323         spin_lock_irqsave(&card->ip_lock, flags);
1324         list_for_each_entry(ipaddr, &card->ip_list, entry){
1325                 if (ipaddr->proto != proto)
1326                         continue;
1327                 if (ipaddr->type != QETH_IP_TYPE_VIPA)
1328                         continue;
1329                 /* String must not be longer than PAGE_SIZE. So we check if
1330                  * string length gets near PAGE_SIZE. Then we can savely display
1331                  * the next IPv6 address (worst case, compared to IPv4) */
1332                 if ((PAGE_SIZE - i) <= entry_len)
1333                         break;
1334                 qeth_ipaddr_to_string(proto, (const u8 *)&ipaddr->u, addr_str);
1335                 i += snprintf(buf + i, PAGE_SIZE - i, "%s\n", addr_str);
1336         }
1337         spin_unlock_irqrestore(&card->ip_lock, flags);
1338         i += snprintf(buf + i, PAGE_SIZE - i, "\n");
1339
1340         return i;
1341 }
1342
1343 static ssize_t
1344 qeth_dev_vipa_add4_show(struct device *dev, struct device_attribute *attr, char *buf)
1345 {
1346         struct qeth_card *card = dev->driver_data;
1347
1348         if (!card)
1349                 return -EINVAL;
1350
1351         return qeth_dev_vipa_add_show(buf, card, QETH_PROT_IPV4);
1352 }
1353
1354 static inline int
1355 qeth_parse_vipae(const char* buf, enum qeth_prot_versions proto,
1356                  u8 *addr)
1357 {
1358         if (qeth_string_to_ipaddr(buf, proto, addr)){
1359                 PRINT_WARN("Invalid IP address format!\n");
1360                 return -EINVAL;
1361         }
1362         return 0;
1363 }
1364
1365 static inline ssize_t
1366 qeth_dev_vipa_add_store(const char *buf, size_t count,
1367                          struct qeth_card *card, enum qeth_prot_versions proto)
1368 {
1369         u8 addr[16] = {0, };
1370         int rc;
1371
1372         if (qeth_check_layer2(card))
1373                 return -EPERM;
1374         if ((rc = qeth_parse_vipae(buf, proto, addr)))
1375                 return rc;
1376
1377         if ((rc = qeth_add_vipa(card, proto, addr)))
1378                 return rc;
1379
1380         return count;
1381 }
1382
1383 static ssize_t
1384 qeth_dev_vipa_add4_store(struct device *dev, struct device_attribute *attr, const char *buf, size_t count)
1385 {
1386         struct qeth_card *card = dev->driver_data;
1387
1388         if (!card)
1389                 return -EINVAL;
1390
1391         return qeth_dev_vipa_add_store(buf, count, card, QETH_PROT_IPV4);
1392 }
1393
1394 static QETH_DEVICE_ATTR(vipa_add4, add4, 0644,
1395                         qeth_dev_vipa_add4_show,
1396                         qeth_dev_vipa_add4_store);
1397
1398 static inline ssize_t
1399 qeth_dev_vipa_del_store(const char *buf, size_t count,
1400                          struct qeth_card *card, enum qeth_prot_versions proto)
1401 {
1402         u8 addr[16];
1403         int rc;
1404
1405         if (qeth_check_layer2(card))
1406                 return -EPERM;
1407         if ((rc = qeth_parse_vipae(buf, proto, addr)))
1408                 return rc;
1409
1410         qeth_del_vipa(card, proto, addr);
1411
1412         return count;
1413 }
1414
1415 static ssize_t
1416 qeth_dev_vipa_del4_store(struct device *dev, struct device_attribute *attr, const char *buf, size_t count)
1417 {
1418         struct qeth_card *card = dev->driver_data;
1419
1420         if (!card)
1421                 return -EINVAL;
1422
1423         return qeth_dev_vipa_del_store(buf, count, card, QETH_PROT_IPV4);
1424 }
1425
1426 static QETH_DEVICE_ATTR(vipa_del4, del4, 0200, NULL,
1427                         qeth_dev_vipa_del4_store);
1428
1429 #ifdef CONFIG_QETH_IPV6
1430 static ssize_t
1431 qeth_dev_vipa_add6_show(struct device *dev, struct device_attribute *attr, char *buf)
1432 {
1433         struct qeth_card *card = dev->driver_data;
1434
1435         if (!card)
1436                 return -EINVAL;
1437
1438         return qeth_dev_vipa_add_show(buf, card, QETH_PROT_IPV6);
1439 }
1440
1441 static ssize_t
1442 qeth_dev_vipa_add6_store(struct device *dev, struct device_attribute *attr, const char *buf, size_t count)
1443 {
1444         struct qeth_card *card = dev->driver_data;
1445
1446         if (!card)
1447                 return -EINVAL;
1448
1449         return qeth_dev_vipa_add_store(buf, count, card, QETH_PROT_IPV6);
1450 }
1451
1452 static QETH_DEVICE_ATTR(vipa_add6, add6, 0644,
1453                         qeth_dev_vipa_add6_show,
1454                         qeth_dev_vipa_add6_store);
1455
1456 static ssize_t
1457 qeth_dev_vipa_del6_store(struct device *dev, struct device_attribute *attr, const char *buf, size_t count)
1458 {
1459         struct qeth_card *card = dev->driver_data;
1460
1461         if (!card)
1462                 return -EINVAL;
1463
1464         if (qeth_check_layer2(card))
1465                 return -EPERM;
1466
1467         return qeth_dev_vipa_del_store(buf, count, card, QETH_PROT_IPV6);
1468 }
1469
1470 static QETH_DEVICE_ATTR(vipa_del6, del6, 0200, NULL,
1471                         qeth_dev_vipa_del6_store);
1472 #endif /* CONFIG_QETH_IPV6 */
1473
1474 static struct device_attribute * qeth_vipa_device_attrs[] = {
1475         &dev_attr_vipa_add4,
1476         &dev_attr_vipa_del4,
1477 #ifdef CONFIG_QETH_IPV6
1478         &dev_attr_vipa_add6,
1479         &dev_attr_vipa_del6,
1480 #endif
1481         NULL,
1482 };
1483
1484 static struct attribute_group qeth_device_vipa_group = {
1485         .name = "vipa",
1486         .attrs = (struct attribute **)qeth_vipa_device_attrs,
1487 };
1488
1489 static inline ssize_t
1490 qeth_dev_rxip_add_show(char *buf, struct qeth_card *card,
1491                        enum qeth_prot_versions proto)
1492 {
1493         struct qeth_ipaddr *ipaddr;
1494         char addr_str[40];
1495         int entry_len; /* length of 1 entry string, differs between v4 and v6 */
1496         unsigned long flags;
1497         int i = 0;
1498
1499         if (qeth_check_layer2(card))
1500                 return -EPERM;
1501
1502         entry_len = (proto == QETH_PROT_IPV4)? 12 : 40;
1503         entry_len += 2; /* \n + terminator */
1504         spin_lock_irqsave(&card->ip_lock, flags);
1505         list_for_each_entry(ipaddr, &card->ip_list, entry){
1506                 if (ipaddr->proto != proto)
1507                         continue;
1508                 if (ipaddr->type != QETH_IP_TYPE_RXIP)
1509                         continue;
1510                 /* String must not be longer than PAGE_SIZE. So we check if
1511                  * string length gets near PAGE_SIZE. Then we can savely display
1512                  * the next IPv6 address (worst case, compared to IPv4) */
1513                 if ((PAGE_SIZE - i) <= entry_len)
1514                         break;
1515                 qeth_ipaddr_to_string(proto, (const u8 *)&ipaddr->u, addr_str);
1516                 i += snprintf(buf + i, PAGE_SIZE - i, "%s\n", addr_str);
1517         }
1518         spin_unlock_irqrestore(&card->ip_lock, flags);
1519         i += snprintf(buf + i, PAGE_SIZE - i, "\n");
1520
1521         return i;
1522 }
1523
1524 static ssize_t
1525 qeth_dev_rxip_add4_show(struct device *dev, struct device_attribute *attr, char *buf)
1526 {
1527         struct qeth_card *card = dev->driver_data;
1528
1529         if (!card)
1530                 return -EINVAL;
1531
1532         return qeth_dev_rxip_add_show(buf, card, QETH_PROT_IPV4);
1533 }
1534
1535 static inline int
1536 qeth_parse_rxipe(const char* buf, enum qeth_prot_versions proto,
1537                  u8 *addr)
1538 {
1539         if (qeth_string_to_ipaddr(buf, proto, addr)){
1540                 PRINT_WARN("Invalid IP address format!\n");
1541                 return -EINVAL;
1542         }
1543         return 0;
1544 }
1545
1546 static inline ssize_t
1547 qeth_dev_rxip_add_store(const char *buf, size_t count,
1548                         struct qeth_card *card, enum qeth_prot_versions proto)
1549 {
1550         u8 addr[16] = {0, };
1551         int rc;
1552
1553         if (qeth_check_layer2(card))
1554                 return -EPERM;
1555         if ((rc = qeth_parse_rxipe(buf, proto, addr)))
1556                 return rc;
1557
1558         if ((rc = qeth_add_rxip(card, proto, addr)))
1559                 return rc;
1560
1561         return count;
1562 }
1563
1564 static ssize_t
1565 qeth_dev_rxip_add4_store(struct device *dev, struct device_attribute *attr, const char *buf, size_t count)
1566 {
1567         struct qeth_card *card = dev->driver_data;
1568
1569         if (!card)
1570                 return -EINVAL;
1571
1572         return qeth_dev_rxip_add_store(buf, count, card, QETH_PROT_IPV4);
1573 }
1574
1575 static QETH_DEVICE_ATTR(rxip_add4, add4, 0644,
1576                         qeth_dev_rxip_add4_show,
1577                         qeth_dev_rxip_add4_store);
1578
1579 static inline ssize_t
1580 qeth_dev_rxip_del_store(const char *buf, size_t count,
1581                         struct qeth_card *card, enum qeth_prot_versions proto)
1582 {
1583         u8 addr[16];
1584         int rc;
1585
1586         if (qeth_check_layer2(card))
1587                 return -EPERM;
1588         if ((rc = qeth_parse_rxipe(buf, proto, addr)))
1589                 return rc;
1590
1591         qeth_del_rxip(card, proto, addr);
1592
1593         return count;
1594 }
1595
1596 static ssize_t
1597 qeth_dev_rxip_del4_store(struct device *dev, struct device_attribute *attr, const char *buf, size_t count)
1598 {
1599         struct qeth_card *card = dev->driver_data;
1600
1601         if (!card)
1602                 return -EINVAL;
1603
1604         return qeth_dev_rxip_del_store(buf, count, card, QETH_PROT_IPV4);
1605 }
1606
1607 static QETH_DEVICE_ATTR(rxip_del4, del4, 0200, NULL,
1608                         qeth_dev_rxip_del4_store);
1609
1610 #ifdef CONFIG_QETH_IPV6
1611 static ssize_t
1612 qeth_dev_rxip_add6_show(struct device *dev, struct device_attribute *attr, char *buf)
1613 {
1614         struct qeth_card *card = dev->driver_data;
1615
1616         if (!card)
1617                 return -EINVAL;
1618
1619         return qeth_dev_rxip_add_show(buf, card, QETH_PROT_IPV6);
1620 }
1621
1622 static ssize_t
1623 qeth_dev_rxip_add6_store(struct device *dev, struct device_attribute *attr, const char *buf, size_t count)
1624 {
1625         struct qeth_card *card = dev->driver_data;
1626
1627         if (!card)
1628                 return -EINVAL;
1629
1630         return qeth_dev_rxip_add_store(buf, count, card, QETH_PROT_IPV6);
1631 }
1632
1633 static QETH_DEVICE_ATTR(rxip_add6, add6, 0644,
1634                         qeth_dev_rxip_add6_show,
1635                         qeth_dev_rxip_add6_store);
1636
1637 static ssize_t
1638 qeth_dev_rxip_del6_store(struct device *dev, struct device_attribute *attr, const char *buf, size_t count)
1639 {
1640         struct qeth_card *card = dev->driver_data;
1641
1642         if (!card)
1643                 return -EINVAL;
1644
1645         return qeth_dev_rxip_del_store(buf, count, card, QETH_PROT_IPV6);
1646 }
1647
1648 static QETH_DEVICE_ATTR(rxip_del6, del6, 0200, NULL,
1649                         qeth_dev_rxip_del6_store);
1650 #endif /* CONFIG_QETH_IPV6 */
1651
1652 static struct device_attribute * qeth_rxip_device_attrs[] = {
1653         &dev_attr_rxip_add4,
1654         &dev_attr_rxip_del4,
1655 #ifdef CONFIG_QETH_IPV6
1656         &dev_attr_rxip_add6,
1657         &dev_attr_rxip_del6,
1658 #endif
1659         NULL,
1660 };
1661
1662 static struct attribute_group qeth_device_rxip_group = {
1663         .name = "rxip",
1664         .attrs = (struct attribute **)qeth_rxip_device_attrs,
1665 };
1666
1667 int
1668 qeth_create_device_attributes(struct device *dev)
1669 {
1670         int ret;
1671
1672         if ((ret = sysfs_create_group(&dev->kobj, &qeth_device_attr_group)))
1673                 return ret;
1674         if ((ret = sysfs_create_group(&dev->kobj, &qeth_device_ipato_group))){
1675                 sysfs_remove_group(&dev->kobj, &qeth_device_attr_group);
1676                 return ret;
1677         }
1678         if ((ret = sysfs_create_group(&dev->kobj, &qeth_device_vipa_group))){
1679                 sysfs_remove_group(&dev->kobj, &qeth_device_attr_group);
1680                 sysfs_remove_group(&dev->kobj, &qeth_device_ipato_group);
1681                 return ret;
1682         }
1683         if ((ret = sysfs_create_group(&dev->kobj, &qeth_device_rxip_group))){
1684                 sysfs_remove_group(&dev->kobj, &qeth_device_attr_group);
1685                 sysfs_remove_group(&dev->kobj, &qeth_device_ipato_group);
1686                 sysfs_remove_group(&dev->kobj, &qeth_device_vipa_group);
1687         }
1688         if ((ret = sysfs_create_group(&dev->kobj, &qeth_device_blkt_group)))
1689                 return ret;
1690
1691         return ret;
1692 }
1693
1694 void
1695 qeth_remove_device_attributes(struct device *dev)
1696 {
1697         sysfs_remove_group(&dev->kobj, &qeth_device_attr_group);
1698         sysfs_remove_group(&dev->kobj, &qeth_device_ipato_group);
1699         sysfs_remove_group(&dev->kobj, &qeth_device_vipa_group);
1700         sysfs_remove_group(&dev->kobj, &qeth_device_rxip_group);
1701         sysfs_remove_group(&dev->kobj, &qeth_device_blkt_group);
1702 }
1703
1704 /**********************/
1705 /* DRIVER ATTRIBUTES  */
1706 /**********************/
1707 static ssize_t
1708 qeth_driver_group_store(struct device_driver *ddrv, const char *buf,
1709                         size_t count)
1710 {
1711         const char *start, *end;
1712         char bus_ids[3][BUS_ID_SIZE], *argv[3];
1713         int i;
1714         int err;
1715
1716         start = buf;
1717         for (i = 0; i < 3; i++) {
1718                 static const char delim[] = { ',', ',', '\n' };
1719                 int len;
1720
1721                 if (!(end = strchr(start, delim[i])))
1722                         return -EINVAL;
1723                 len = min_t(ptrdiff_t, BUS_ID_SIZE, end - start);
1724                 strncpy(bus_ids[i], start, len);
1725                 bus_ids[i][len] = '\0';
1726                 start = end + 1;
1727                 argv[i] = bus_ids[i];
1728         }
1729         err = ccwgroup_create(qeth_root_dev, qeth_ccwgroup_driver.driver_id,
1730                         &qeth_ccw_driver, 3, argv);
1731         if (err)
1732                 return err;
1733         else
1734                 return count;
1735 }
1736
1737
1738 static DRIVER_ATTR(group, 0200, 0, qeth_driver_group_store);
1739
1740 static ssize_t
1741 qeth_driver_notifier_register_store(struct device_driver *ddrv, const char *buf,
1742                                 size_t count)
1743 {
1744         int rc;
1745         int signum;
1746         char *tmp, *tmp2;
1747
1748         tmp = strsep((char **) &buf, "\n");
1749         if (!strncmp(tmp, "unregister", 10)){
1750                 if ((rc = qeth_notifier_unregister(current)))
1751                         return rc;
1752                 return count;
1753         }
1754
1755         signum = simple_strtoul(tmp, &tmp2, 10);
1756         if ((signum < 0) || (signum > 32)){
1757                 PRINT_WARN("Signal number %d is out of range\n", signum);
1758                 return -EINVAL;
1759         }
1760         if ((rc = qeth_notifier_register(current, signum)))
1761                 return rc;
1762
1763         return count;
1764 }
1765
1766 static DRIVER_ATTR(notifier_register, 0200, 0,
1767                    qeth_driver_notifier_register_store);
1768
1769 int
1770 qeth_create_driver_attributes(void)
1771 {
1772         int rc;
1773
1774         if ((rc = driver_create_file(&qeth_ccwgroup_driver.driver,
1775                                      &driver_attr_group)))
1776                 return rc;
1777         return driver_create_file(&qeth_ccwgroup_driver.driver,
1778                                   &driver_attr_notifier_register);
1779 }
1780
1781 void
1782 qeth_remove_driver_attributes(void)
1783 {
1784         driver_remove_file(&qeth_ccwgroup_driver.driver,
1785                         &driver_attr_group);
1786         driver_remove_file(&qeth_ccwgroup_driver.driver,
1787                         &driver_attr_notifier_register);
1788 }