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   1 /*
   2  *  drivers/s390/net/qeth_l3_main.c
   3  *
   4  *    Copyright IBM Corp. 2007
   5  *    Author(s): Utz Bacher <utz.bacher@de.ibm.com>,
   6  *               Frank Pavlic <fpavlic@de.ibm.com>,
   7  *               Thomas Spatzier <tspat@de.ibm.com>,
   8  *               Frank Blaschka <frank.blaschka@de.ibm.com>
   9  */
  10
  11 #include <linux/module.h>
  12 #include <linux/moduleparam.h>
  13 #include <linux/string.h>
  14 #include <linux/errno.h>
  15 #include <linux/kernel.h>
  16 #include <linux/etherdevice.h>
  17 #include <linux/mii.h>
  18 #include <linux/ip.h>
  19 #include <linux/reboot.h>
  20 #include <linux/inetdevice.h>
  21 #include <linux/igmp.h>
  22
  23 #include <net/ip.h>
  24 #include <net/arp.h>
  25
  26 #include <asm/s390_rdev.h>
  27
  28 #include "qeth_l3.h"
  29 #include "qeth_core_offl.h"
  30
  31 static int qeth_l3_set_offline(struct ccwgroup_device *);
  32 static int qeth_l3_recover(void *);
  33 static int qeth_l3_stop(struct net_device *);
  34 static void qeth_l3_set_multicast_list(struct net_device *);
  35 static int qeth_l3_neigh_setup(struct net_device *, struct neigh_parms *);
  36 static int qeth_l3_register_addr_entry(struct qeth_card *,
  37                 struct qeth_ipaddr *);
  38 static int qeth_l3_deregister_addr_entry(struct qeth_card *,
  39                 struct qeth_ipaddr *);
  40 static int __qeth_l3_set_online(struct ccwgroup_device *, int);
  41 static int __qeth_l3_set_offline(struct ccwgroup_device *, int);
  42
  43
  44 static int qeth_l3_isxdigit(char *buf)
  45 {
  46         while (*buf) {
  47                 if (!isxdigit(*buf++))
  48                         return 0;
  49         }
  50         return 1;
  51 }
  52
  53 void qeth_l3_ipaddr4_to_string(const __u8 *addr, char *buf)
  54 {
  55         sprintf(buf, "%i.%i.%i.%i", addr[0], addr[1], addr[2], addr[3]);
  56 }
  57
  58 int qeth_l3_string_to_ipaddr4(const char *buf, __u8 *addr)
  59 {
  60         int count = 0, rc = 0;
  61         int in[4];
  62         char c;
  63
  64         rc = sscanf(buf, "%u.%u.%u.%u%c",
  65                     &in[0], &in[1], &in[2], &in[3], &c);
  66         if (rc != 4 && (rc != 5 || c != '\n'))
  67                 return -EINVAL;
  68         for (count = 0; count < 4; count++) {
  69                 if (in[count] > 255)
  70                         return -EINVAL;
  71                 addr[count] = in[count];
  72         }
  73         return 0;
  74 }
  75
  76 void qeth_l3_ipaddr6_to_string(const __u8 *addr, char *buf)
  77 {
  78         sprintf(buf, "%02x%02x:%02x%02x:%02x%02x:%02x%02x"
  79                      ":%02x%02x:%02x%02x:%02x%02x:%02x%02x",
  80                      addr[0], addr[1], addr[2], addr[3],
  81                      addr[4], addr[5], addr[6], addr[7],
  82                      addr[8], addr[9], addr[10], addr[11],
  83                      addr[12], addr[13], addr[14], addr[15]);
  84 }
  85
  86 int qeth_l3_string_to_ipaddr6(const char *buf, __u8 *addr)
  87 {
  88         const char *end, *end_tmp, *start;
  89         __u16 *in;
  90         char num[5];
  91         int num2, cnt, out, found, save_cnt;
  92         unsigned short in_tmp[8] = {0, };
  93
  94         cnt = out = found = save_cnt = num2 = 0;
  95         end = start = buf;
  96         in = (__u16 *) addr;
  97         memset(in, 0, 16);
  98         while (*end) {
  99                 end = strchr(start, ':');
 100                 if (end == NULL) {
 101                         end = buf + strlen(buf);
 102                         end_tmp = strchr(start, '\n');
 103                         if (end_tmp != NULL)
 104                                 end = end_tmp;
 105                         out = 1;
 106                 }
 107                 if ((end - start)) {
 108                         memset(num, 0, 5);
 109                         if ((end - start) > 4)
 110                                 return -EINVAL;
 111                         memcpy(num, start, end - start);
 112                         if (!qeth_l3_isxdigit(num))
 113                                 return -EINVAL;
 114                         sscanf(start, "%x", &num2);
 115                         if (found)
 116                                 in_tmp[save_cnt++] = num2;
 117                         else
 118                                 in[cnt++] = num2;
 119                         if (out)
 120                                 break;
 121                 } else {
 122                         if (found)
 123                                 return -EINVAL;
 124                         found = 1;
 125                 }
 126                 start = ++end;
 127         }
 128         if (cnt + save_cnt > 8)
 129                 return -EINVAL;
 130         cnt = 7;
 131         while (save_cnt)
 132                 in[cnt--] = in_tmp[--save_cnt];
 133         return 0;
 134 }
 135
 136 void qeth_l3_ipaddr_to_string(enum qeth_prot_versions proto, const __u8 *addr,
 137                                 char *buf)
 138 {
 139         if (proto == QETH_PROT_IPV4)
 140                 qeth_l3_ipaddr4_to_string(addr, buf);
 141         else if (proto == QETH_PROT_IPV6)
 142                 qeth_l3_ipaddr6_to_string(addr, buf);
 143 }
 144
 145 int qeth_l3_string_to_ipaddr(const char *buf, enum qeth_prot_versions proto,
 146                                 __u8 *addr)
 147 {
 148         if (proto == QETH_PROT_IPV4)
 149                 return qeth_l3_string_to_ipaddr4(buf, addr);
 150         else if (proto == QETH_PROT_IPV6)
 151                 return qeth_l3_string_to_ipaddr6(buf, addr);
 152         else
 153                 return -EINVAL;
 154 }
 155
 156 static void qeth_l3_convert_addr_to_bits(u8 *addr, u8 *bits, int len)
 157 {
 158         int i, j;
 159         u8 octet;
 160
 161         for (i = 0; i < len; ++i) {
 162                 octet = addr[i];
 163                 for (j = 7; j >= 0; --j) {
 164                         bits[i*8 + j] = octet & 1;
 165                         octet >>= 1;
 166                 }
 167         }
 168 }
 169
 170 static int qeth_l3_is_addr_covered_by_ipato(struct qeth_card *card,
 171                                                 struct qeth_ipaddr *addr)
 172 {
 173         struct qeth_ipato_entry *ipatoe;
 174         u8 addr_bits[128] = {0, };
 175         u8 ipatoe_bits[128] = {0, };
 176         int rc = 0;
 177
 178         if (!card->ipato.enabled)
 179                 return 0;
 180
 181         qeth_l3_convert_addr_to_bits((u8 *) &addr->u, addr_bits,
 182                                   (addr->proto == QETH_PROT_IPV4)? 4:16);
 183         list_for_each_entry(ipatoe, &card->ipato.entries, entry) {
 184                 if (addr->proto != ipatoe->proto)
 185                         continue;
 186                 qeth_l3_convert_addr_to_bits(ipatoe->addr, ipatoe_bits,
 187                                           (ipatoe->proto == QETH_PROT_IPV4) ?
 188                                           4 : 16);
 189                 if (addr->proto == QETH_PROT_IPV4)
 190                         rc = !memcmp(addr_bits, ipatoe_bits,
 191                                      min(32, ipatoe->mask_bits));
 192                 else
 193                         rc = !memcmp(addr_bits, ipatoe_bits,
 194                                      min(128, ipatoe->mask_bits));
 195                 if (rc)
 196                         break;
 197         }
 198         /* invert? */
 199         if ((addr->proto == QETH_PROT_IPV4) && card->ipato.invert4)
 200                 rc = !rc;
 201         else if ((addr->proto == QETH_PROT_IPV6) && card->ipato.invert6)
 202                 rc = !rc;
 203
 204         return rc;
 205 }
 206
 207 /*
 208  * Add IP to be added to todo list. If there is already an "add todo"
 209  * in this list we just incremenent the reference count.
 210  * Returns 0 if we  just incremented reference count.
 211  */
 212 static int __qeth_l3_insert_ip_todo(struct qeth_card *card,
 213                                         struct qeth_ipaddr *addr, int add)
 214 {
 215         struct qeth_ipaddr *tmp, *t;
 216         int found = 0;
 217
 218         list_for_each_entry_safe(tmp, t, card->ip_tbd_list, entry) {
 219                 if ((addr->type == QETH_IP_TYPE_DEL_ALL_MC) &&
 220                     (tmp->type == QETH_IP_TYPE_DEL_ALL_MC))
 221                         return 0;
 222                 if ((tmp->proto        == QETH_PROT_IPV4)     &&
 223                     (addr->proto       == QETH_PROT_IPV4)     &&
 224                     (tmp->type         == addr->type)         &&
 225                     (tmp->is_multicast == addr->is_multicast) &&
 226                     (tmp->u.a4.addr    == addr->u.a4.addr)    &&
 227                     (tmp->u.a4.mask    == addr->u.a4.mask)) {
 228                         found = 1;
 229                         break;
 230                 }
 231                 if ((tmp->proto        == QETH_PROT_IPV6)      &&
 232                     (addr->proto       == QETH_PROT_IPV6)      &&
 233                     (tmp->type         == addr->type)          &&
 234                     (tmp->is_multicast == addr->is_multicast)  &&
 235                     (tmp->u.a6.pfxlen  == addr->u.a6.pfxlen)   &&
 236                     (memcmp(&tmp->u.a6.addr, &addr->u.a6.addr,
 237                             sizeof(struct in6_addr)) == 0)) {
 238                         found = 1;
 239                         break;
 240                 }
 241         }
 242         if (found) {
 243                 if (addr->users != 0)
 244                         tmp->users += addr->users;
 245                 else
 246                         tmp->users += add ? 1 : -1;
 247                 if (tmp->users == 0) {
 248                         list_del(&tmp->entry);
 249                         kfree(tmp);
 250                 }
 251                 return 0;
 252         } else {
 253                 if (addr->type == QETH_IP_TYPE_DEL_ALL_MC)
 254                         list_add(&addr->entry, card->ip_tbd_list);
 255                 else {
 256                         if (addr->users == 0)
 257                                 addr->users += add ? 1 : -1;
 258                         if (add && (addr->type == QETH_IP_TYPE_NORMAL) &&
 259                             qeth_l3_is_addr_covered_by_ipato(card, addr)) {
 260                                 QETH_DBF_TEXT(TRACE, 2, "tkovaddr");
 261                                 addr->set_flags |= QETH_IPA_SETIP_TAKEOVER_FLAG;
 262                         }
 263                         list_add_tail(&addr->entry, card->ip_tbd_list);
 264                 }
 265                 return 1;
 266         }
 267 }
 268
 269 static int qeth_l3_delete_ip(struct qeth_card *card, struct qeth_ipaddr *addr)
 270 {
 271         unsigned long flags;
 272         int rc = 0;
 273
 274         QETH_DBF_TEXT(TRACE, 4, "delip");
 275
 276         if (addr->proto == QETH_PROT_IPV4)
 277                 QETH_DBF_HEX(TRACE, 4, &addr->u.a4.addr, 4);
 278         else {
 279                 QETH_DBF_HEX(TRACE, 4, &addr->u.a6.addr, 8);
 280                 QETH_DBF_HEX(TRACE, 4, ((char *)&addr->u.a6.addr) + 8, 8);
 281         }
 282         spin_lock_irqsave(&card->ip_lock, flags);
 283         rc = __qeth_l3_insert_ip_todo(card, addr, 0);
 284         spin_unlock_irqrestore(&card->ip_lock, flags);
 285         return rc;
 286 }
 287
 288 static int qeth_l3_add_ip(struct qeth_card *card, struct qeth_ipaddr *addr)
 289 {
 290         unsigned long flags;
 291         int rc = 0;
 292
 293         QETH_DBF_TEXT(TRACE, 4, "addip");
 294         if (addr->proto == QETH_PROT_IPV4)
 295                 QETH_DBF_HEX(TRACE, 4, &addr->u.a4.addr, 4);
 296         else {
 297                 QETH_DBF_HEX(TRACE, 4, &addr->u.a6.addr, 8);
 298                 QETH_DBF_HEX(TRACE, 4, ((char *)&addr->u.a6.addr) + 8, 8);
 299         }
 300         spin_lock_irqsave(&card->ip_lock, flags);
 301         rc = __qeth_l3_insert_ip_todo(card, addr, 1);
 302         spin_unlock_irqrestore(&card->ip_lock, flags);
 303         return rc;
 304 }
 305
 306
 307 static struct qeth_ipaddr *qeth_l3_get_addr_buffer(
 308                                 enum qeth_prot_versions prot)
 309 {
 310         struct qeth_ipaddr *addr;
 311
 312         addr = kzalloc(sizeof(struct qeth_ipaddr), GFP_ATOMIC);
 313         if (addr == NULL) {
 314                 PRINT_WARN("Not enough memory to add address\n");
 315                 return NULL;
 316         }
 317         addr->type = QETH_IP_TYPE_NORMAL;
 318         addr->proto = prot;
 319         return addr;
 320 }
 321
 322 static void qeth_l3_delete_mc_addresses(struct qeth_card *card)
 323 {
 324         struct qeth_ipaddr *iptodo;
 325         unsigned long flags;
 326
 327         QETH_DBF_TEXT(TRACE, 4, "delmc");
 328         iptodo = qeth_l3_get_addr_buffer(QETH_PROT_IPV4);
 329         if (!iptodo) {
 330                 QETH_DBF_TEXT(TRACE, 2, "dmcnomem");
 331                 return;
 332         }
 333         iptodo->type = QETH_IP_TYPE_DEL_ALL_MC;
 334         spin_lock_irqsave(&card->ip_lock, flags);
 335         if (!__qeth_l3_insert_ip_todo(card, iptodo, 0))
 336                 kfree(iptodo);
 337         spin_unlock_irqrestore(&card->ip_lock, flags);
 338 }
 339
 340 /*
 341  * Add/remove address to/from card's ip list, i.e. try to add or remove
 342  * reference to/from an IP address that is already registered on the card.
 343  * Returns:
 344  *      0  address was on card and its reference count has been adjusted,
 345  *         but is still > 0, so nothing has to be done
 346  *         also returns 0 if card was not on card and the todo was to delete
 347  *         the address -> there is also nothing to be done
 348  *      1  address was not on card and the todo is to add it to the card's ip
 349  *         list
 350  *      -1 address was on card and its reference count has been decremented
 351  *         to <= 0 by the todo -> address must be removed from card
 352  */
 353 static int __qeth_l3_ref_ip_on_card(struct qeth_card *card,
 354                 struct qeth_ipaddr *todo, struct qeth_ipaddr **__addr)
 355 {
 356         struct qeth_ipaddr *addr;
 357         int found = 0;
 358
 359         list_for_each_entry(addr, &card->ip_list, entry) {
 360                 if ((addr->proto == QETH_PROT_IPV4) &&
 361                     (todo->proto == QETH_PROT_IPV4) &&
 362                     (addr->type == todo->type) &&
 363                     (addr->u.a4.addr == todo->u.a4.addr) &&
 364                     (addr->u.a4.mask == todo->u.a4.mask)) {
 365                         found = 1;
 366                         break;
 367                 }
 368                 if ((addr->proto == QETH_PROT_IPV6) &&
 369                     (todo->proto == QETH_PROT_IPV6) &&
 370                     (addr->type == todo->type) &&
 371                     (addr->u.a6.pfxlen == todo->u.a6.pfxlen) &&
 372                     (memcmp(&addr->u.a6.addr, &todo->u.a6.addr,
 373                             sizeof(struct in6_addr)) == 0)) {
 374                         found = 1;
 375                         break;
 376                 }
 377         }
 378         if (found) {
 379                 addr->users += todo->users;
 380                 if (addr->users <= 0) {
 381                         *__addr = addr;
 382                         return -1;
 383                 } else {
 384                         /* for VIPA and RXIP limit refcount to 1 */
 385                         if (addr->type != QETH_IP_TYPE_NORMAL)
 386                                 addr->users = 1;
 387                         return 0;
 388                 }
 389         }
 390         if (todo->users > 0) {
 391                 /* for VIPA and RXIP limit refcount to 1 */
 392                 if (todo->type != QETH_IP_TYPE_NORMAL)
 393                         todo->users = 1;
 394                 return 1;
 395         } else
 396                 return 0;
 397 }
 398
 399 static void __qeth_l3_delete_all_mc(struct qeth_card *card,
 400                                         unsigned long *flags)
 401 {
 402         struct list_head fail_list;
 403         struct qeth_ipaddr *addr, *tmp;
 404         int rc;
 405
 406         INIT_LIST_HEAD(&fail_list);
 407 again:
 408         list_for_each_entry_safe(addr, tmp, &card->ip_list, entry) {
 409                 if (addr->is_multicast) {
 410                         list_del(&addr->entry);
 411                         spin_unlock_irqrestore(&card->ip_lock, *flags);
 412                         rc = qeth_l3_deregister_addr_entry(card, addr);
 413                         spin_lock_irqsave(&card->ip_lock, *flags);
 414                         if (!rc || (rc == IPA_RC_MC_ADDR_NOT_FOUND))
 415                                 kfree(addr);
 416                         else
 417                                 list_add_tail(&addr->entry, &fail_list);
 418                         goto again;
 419                 }
 420         }
 421         list_splice(&fail_list, &card->ip_list);
 422 }
 423
 424 static void qeth_l3_set_ip_addr_list(struct qeth_card *card)
 425 {
 426         struct list_head *tbd_list;
 427         struct qeth_ipaddr *todo, *addr;
 428         unsigned long flags;
 429         int rc;
 430
 431         QETH_DBF_TEXT(TRACE, 2, "sdiplist");
 432         QETH_DBF_HEX(TRACE, 2, &card, sizeof(void *));
 433
 434         spin_lock_irqsave(&card->ip_lock, flags);
 435         tbd_list = card->ip_tbd_list;
 436         card->ip_tbd_list = kmalloc(sizeof(struct list_head), GFP_ATOMIC);
 437         if (!card->ip_tbd_list) {
 438                 QETH_DBF_TEXT(TRACE, 0, "silnomem");
 439                 card->ip_tbd_list = tbd_list;
 440                 spin_unlock_irqrestore(&card->ip_lock, flags);
 441                 return;
 442         } else
 443                 INIT_LIST_HEAD(card->ip_tbd_list);
 444
 445         while (!list_empty(tbd_list)) {
 446                 todo = list_entry(tbd_list->next, struct qeth_ipaddr, entry);
 447                 list_del(&todo->entry);
 448                 if (todo->type == QETH_IP_TYPE_DEL_ALL_MC) {
 449                         __qeth_l3_delete_all_mc(card, &flags);
 450                         kfree(todo);
 451                         continue;
 452                 }
 453                 rc = __qeth_l3_ref_ip_on_card(card, todo, &addr);
 454                 if (rc == 0) {
 455                         /* nothing to be done; only adjusted refcount */
 456                         kfree(todo);
 457                 } else if (rc == 1) {
 458                         /* new entry to be added to on-card list */
 459                         spin_unlock_irqrestore(&card->ip_lock, flags);
 460                         rc = qeth_l3_register_addr_entry(card, todo);
 461                         spin_lock_irqsave(&card->ip_lock, flags);
 462                         if (!rc || (rc == IPA_RC_LAN_OFFLINE))
 463                                 list_add_tail(&todo->entry, &card->ip_list);
 464                         else
 465                                 kfree(todo);
 466                 } else if (rc == -1) {
 467                         /* on-card entry to be removed */
 468                         list_del_init(&addr->entry);
 469                         spin_unlock_irqrestore(&card->ip_lock, flags);
 470                         rc = qeth_l3_deregister_addr_entry(card, addr);
 471                         spin_lock_irqsave(&card->ip_lock, flags);
 472                         if (!rc || (rc == IPA_RC_PRIMARY_ALREADY_DEFINED))
 473                                 kfree(addr);
 474                         else
 475                                 list_add_tail(&addr->entry, &card->ip_list);
 476                         kfree(todo);
 477                 }
 478         }
 479         spin_unlock_irqrestore(&card->ip_lock, flags);
 480         kfree(tbd_list);
 481 }
 482
 483 static void qeth_l3_clear_ip_list(struct qeth_card *card, int clean,
 484                                         int recover)
 485 {
 486         struct qeth_ipaddr *addr, *tmp;
 487         unsigned long flags;
 488
 489         QETH_DBF_TEXT(TRACE, 4, "clearip");
 490         spin_lock_irqsave(&card->ip_lock, flags);
 491         /* clear todo list */
 492         list_for_each_entry_safe(addr, tmp, card->ip_tbd_list, entry) {
 493                 list_del(&addr->entry);
 494                 kfree(addr);
 495         }
 496
 497         while (!list_empty(&card->ip_list)) {
 498                 addr = list_entry(card->ip_list.next,
 499                                   struct qeth_ipaddr, entry);
 500                 list_del_init(&addr->entry);
 501                 if (clean) {
 502                         spin_unlock_irqrestore(&card->ip_lock, flags);
 503                         qeth_l3_deregister_addr_entry(card, addr);
 504                         spin_lock_irqsave(&card->ip_lock, flags);
 505                 }
 506                 if (!recover || addr->is_multicast) {
 507                         kfree(addr);
 508                         continue;
 509                 }
 510                 list_add_tail(&addr->entry, card->ip_tbd_list);
 511         }
 512         spin_unlock_irqrestore(&card->ip_lock, flags);
 513 }
 514
 515 static int qeth_l3_address_exists_in_list(struct list_head *list,
 516                 struct qeth_ipaddr *addr, int same_type)
 517 {
 518         struct qeth_ipaddr *tmp;
 519
 520         list_for_each_entry(tmp, list, entry) {
 521                 if ((tmp->proto == QETH_PROT_IPV4) &&
 522                     (addr->proto == QETH_PROT_IPV4) &&
 523                     ((same_type && (tmp->type == addr->type)) ||
 524                     (!same_type && (tmp->type != addr->type))) &&
 525                     (tmp->u.a4.addr == addr->u.a4.addr))
 526                         return 1;
 527
 528                 if ((tmp->proto == QETH_PROT_IPV6) &&
 529                     (addr->proto == QETH_PROT_IPV6) &&
 530                     ((same_type && (tmp->type == addr->type)) ||
 531                     (!same_type && (tmp->type != addr->type))) &&
 532                     (memcmp(&tmp->u.a6.addr, &addr->u.a6.addr,
 533                             sizeof(struct in6_addr)) == 0))
 534                         return 1;
 535
 536         }
 537         return 0;
 538 }
 539
 540 static int qeth_l3_send_setdelmc(struct qeth_card *card,
 541                         struct qeth_ipaddr *addr, int ipacmd)
 542 {
 543         int rc;
 544         struct qeth_cmd_buffer *iob;
 545         struct qeth_ipa_cmd *cmd;
 546
 547         QETH_DBF_TEXT(TRACE, 4, "setdelmc");
 548
 549         iob = qeth_get_ipacmd_buffer(card, ipacmd, addr->proto);
 550         cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
 551         memcpy(&cmd->data.setdelipm.mac, addr->mac, OSA_ADDR_LEN);
 552         if (addr->proto == QETH_PROT_IPV6)
 553                 memcpy(cmd->data.setdelipm.ip6, &addr->u.a6.addr,
 554                        sizeof(struct in6_addr));
 555         else
 556                 memcpy(&cmd->data.setdelipm.ip4, &addr->u.a4.addr, 4);
 557
 558         rc = qeth_send_ipa_cmd(card, iob, NULL, NULL);
 559
 560         return rc;
 561 }
 562
 563 static void qeth_l3_fill_netmask(u8 *netmask, unsigned int len)
 564 {
 565         int i, j;
 566         for (i = 0; i < 16; i++) {
 567                 j = (len) - (i * 8);
 568                 if (j >= 8)
 569                         netmask[i] = 0xff;
 570                 else if (j > 0)
 571                         netmask[i] = (u8)(0xFF00 >> j);
 572                 else
 573                         netmask[i] = 0;
 574         }
 575 }
 576
 577 static int qeth_l3_send_setdelip(struct qeth_card *card,
 578                 struct qeth_ipaddr *addr, int ipacmd, unsigned int flags)
 579 {
 580         int rc;
 581         struct qeth_cmd_buffer *iob;
 582         struct qeth_ipa_cmd *cmd;
 583         __u8 netmask[16];
 584
 585         QETH_DBF_TEXT(TRACE, 4, "setdelip");
 586         QETH_DBF_TEXT_(TRACE, 4, "flags%02X", flags);
 587
 588         iob = qeth_get_ipacmd_buffer(card, ipacmd, addr->proto);
 589         cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
 590         if (addr->proto == QETH_PROT_IPV6) {
 591                 memcpy(cmd->data.setdelip6.ip_addr, &addr->u.a6.addr,
 592                        sizeof(struct in6_addr));
 593                 qeth_l3_fill_netmask(netmask, addr->u.a6.pfxlen);
 594                 memcpy(cmd->data.setdelip6.mask, netmask,
 595                        sizeof(struct in6_addr));
 596                 cmd->data.setdelip6.flags = flags;
 597         } else {
 598                 memcpy(cmd->data.setdelip4.ip_addr, &addr->u.a4.addr, 4);
 599                 memcpy(cmd->data.setdelip4.mask, &addr->u.a4.mask, 4);
 600                 cmd->data.setdelip4.flags = flags;
 601         }
 602
 603         rc = qeth_send_ipa_cmd(card, iob, NULL, NULL);
 604
 605         return rc;
 606 }
 607
 608 static int qeth_l3_send_setrouting(struct qeth_card *card,
 609         enum qeth_routing_types type, enum qeth_prot_versions prot)
 610 {
 611         int rc;
 612         struct qeth_ipa_cmd *cmd;
 613         struct qeth_cmd_buffer *iob;
 614
 615         QETH_DBF_TEXT(TRACE, 4, "setroutg");
 616         iob = qeth_get_ipacmd_buffer(card, IPA_CMD_SETRTG, prot);
 617         cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
 618         cmd->data.setrtg.type = (type);
 619         rc = qeth_send_ipa_cmd(card, iob, NULL, NULL);
 620
 621         return rc;
 622 }
 623
 624 static void qeth_l3_correct_routing_type(struct qeth_card *card,
 625                 enum qeth_routing_types *type, enum qeth_prot_versions prot)
 626 {
 627         if (card->info.type == QETH_CARD_TYPE_IQD) {
 628                 switch (*type) {
 629                 case NO_ROUTER:
 630                 case PRIMARY_CONNECTOR:
 631                 case SECONDARY_CONNECTOR:
 632                 case MULTICAST_ROUTER:
 633                         return;
 634                 default:
 635                         goto out_inval;
 636                 }
 637         } else {
 638                 switch (*type) {
 639                 case NO_ROUTER:
 640                 case PRIMARY_ROUTER:
 641                 case SECONDARY_ROUTER:
 642                         return;
 643                 case MULTICAST_ROUTER:
 644                         if (qeth_is_ipafunc_supported(card, prot,
 645                                                       IPA_OSA_MC_ROUTER))
 646                                 return;
 647                 default:
 648                         goto out_inval;
 649                 }
 650         }
 651 out_inval:
 652         PRINT_WARN("Routing type '%s' not supported for interface %s.\n"
 653                    "Router status set to 'no router'.\n",
 654                    ((*type == PRIMARY_ROUTER)? "primary router" :
 655                     (*type == SECONDARY_ROUTER)? "secondary router" :
 656                     (*type == PRIMARY_CONNECTOR)? "primary connector" :
 657                     (*type == SECONDARY_CONNECTOR)? "secondary connector" :
 658                     (*type == MULTICAST_ROUTER)? "multicast router" :
 659                     "unknown"),
 660                    card->dev->name);
 661         *type = NO_ROUTER;
 662 }
 663
 664 int qeth_l3_setrouting_v4(struct qeth_card *card)
 665 {
 666         int rc;
 667
 668         QETH_DBF_TEXT(TRACE, 3, "setrtg4");
 669
 670         qeth_l3_correct_routing_type(card, &card->options.route4.type,
 671                                   QETH_PROT_IPV4);
 672
 673         rc = qeth_l3_send_setrouting(card, card->options.route4.type,
 674                                   QETH_PROT_IPV4);
 675         if (rc) {
 676                 card->options.route4.type = NO_ROUTER;
 677                 PRINT_WARN("Error (0x%04x) while setting routing type on %s. "
 678                            "Type set to 'no router'.\n",
 679                            rc, QETH_CARD_IFNAME(card));
 680         }
 681         return rc;
 682 }
 683
 684 int qeth_l3_setrouting_v6(struct qeth_card *card)
 685 {
 686         int rc = 0;
 687
 688         QETH_DBF_TEXT(TRACE, 3, "setrtg6");
 689 #ifdef CONFIG_QETH_IPV6
 690
 691         if (!qeth_is_supported(card, IPA_IPV6))
 692                 return 0;
 693         qeth_l3_correct_routing_type(card, &card->options.route6.type,
 694                                   QETH_PROT_IPV6);
 695
 696         rc = qeth_l3_send_setrouting(card, card->options.route6.type,
 697                                   QETH_PROT_IPV6);
 698         if (rc) {
 699                 card->options.route6.type = NO_ROUTER;
 700                 PRINT_WARN("Error (0x%04x) while setting routing type on %s. "
 701                            "Type set to 'no router'.\n",
 702                            rc, QETH_CARD_IFNAME(card));
 703         }
 704 #endif
 705         return rc;
 706 }
 707
 708 /*
 709  * IP address takeover related functions
 710  */
 711 static void qeth_l3_clear_ipato_list(struct qeth_card *card)
 712 {
 713
 714         struct qeth_ipato_entry *ipatoe, *tmp;
 715         unsigned long flags;
 716
 717         spin_lock_irqsave(&card->ip_lock, flags);
 718         list_for_each_entry_safe(ipatoe, tmp, &card->ipato.entries, entry) {
 719                 list_del(&ipatoe->entry);
 720                 kfree(ipatoe);
 721         }
 722         spin_unlock_irqrestore(&card->ip_lock, flags);
 723 }
 724
 725 int qeth_l3_add_ipato_entry(struct qeth_card *card,
 726                                 struct qeth_ipato_entry *new)
 727 {
 728         struct qeth_ipato_entry *ipatoe;
 729         unsigned long flags;
 730         int rc = 0;
 731
 732         QETH_DBF_TEXT(TRACE, 2, "addipato");
 733         spin_lock_irqsave(&card->ip_lock, flags);
 734         list_for_each_entry(ipatoe, &card->ipato.entries, entry) {
 735                 if (ipatoe->proto != new->proto)
 736                         continue;
 737                 if (!memcmp(ipatoe->addr, new->addr,
 738                             (ipatoe->proto == QETH_PROT_IPV4)? 4:16) &&
 739                     (ipatoe->mask_bits == new->mask_bits)) {
 740                         PRINT_WARN("ipato entry already exists!\n");
 741                         rc = -EEXIST;
 742                         break;
 743                 }
 744         }
 745         if (!rc)
 746                 list_add_tail(&new->entry, &card->ipato.entries);
 747
 748         spin_unlock_irqrestore(&card->ip_lock, flags);
 749         return rc;
 750 }
 751
 752 void qeth_l3_del_ipato_entry(struct qeth_card *card,
 753                 enum qeth_prot_versions proto, u8 *addr, int mask_bits)
 754 {
 755         struct qeth_ipato_entry *ipatoe, *tmp;
 756         unsigned long flags;
 757
 758         QETH_DBF_TEXT(TRACE, 2, "delipato");
 759         spin_lock_irqsave(&card->ip_lock, flags);
 760         list_for_each_entry_safe(ipatoe, tmp, &card->ipato.entries, entry) {
 761                 if (ipatoe->proto != proto)
 762                         continue;
 763                 if (!memcmp(ipatoe->addr, addr,
 764                             (proto == QETH_PROT_IPV4)? 4:16) &&
 765                     (ipatoe->mask_bits == mask_bits)) {
 766                         list_del(&ipatoe->entry);
 767                         kfree(ipatoe);
 768                 }
 769         }
 770         spin_unlock_irqrestore(&card->ip_lock, flags);
 771 }
 772
 773 /*
 774  * VIPA related functions
 775  */
 776 int qeth_l3_add_vipa(struct qeth_card *card, enum qeth_prot_versions proto,
 777               const u8 *addr)
 778 {
 779         struct qeth_ipaddr *ipaddr;
 780         unsigned long flags;
 781         int rc = 0;
 782
 783         ipaddr = qeth_l3_get_addr_buffer(proto);
 784         if (ipaddr) {
 785                 if (proto == QETH_PROT_IPV4) {
 786                         QETH_DBF_TEXT(TRACE, 2, "addvipa4");
 787                         memcpy(&ipaddr->u.a4.addr, addr, 4);
 788                         ipaddr->u.a4.mask = 0;
 789                 } else if (proto == QETH_PROT_IPV6) {
 790                         QETH_DBF_TEXT(TRACE, 2, "addvipa6");
 791                         memcpy(&ipaddr->u.a6.addr, addr, 16);
 792                         ipaddr->u.a6.pfxlen = 0;
 793                 }
 794                 ipaddr->type = QETH_IP_TYPE_VIPA;
 795                 ipaddr->set_flags = QETH_IPA_SETIP_VIPA_FLAG;
 796                 ipaddr->del_flags = QETH_IPA_DELIP_VIPA_FLAG;
 797         } else
 798                 return -ENOMEM;
 799         spin_lock_irqsave(&card->ip_lock, flags);
 800         if (qeth_l3_address_exists_in_list(&card->ip_list, ipaddr, 0) ||
 801             qeth_l3_address_exists_in_list(card->ip_tbd_list, ipaddr, 0))
 802                 rc = -EEXIST;
 803         spin_unlock_irqrestore(&card->ip_lock, flags);
 804         if (rc) {
 805                 PRINT_WARN("Cannot add VIPA. Address already exists!\n");
 806                 return rc;
 807         }
 808         if (!qeth_l3_add_ip(card, ipaddr))
 809                 kfree(ipaddr);
 810         qeth_l3_set_ip_addr_list(card);
 811         return rc;
 812 }
 813
 814 void qeth_l3_del_vipa(struct qeth_card *card, enum qeth_prot_versions proto,
 815               const u8 *addr)
 816 {
 817         struct qeth_ipaddr *ipaddr;
 818
 819         ipaddr = qeth_l3_get_addr_buffer(proto);
 820         if (ipaddr) {
 821                 if (proto == QETH_PROT_IPV4) {
 822                         QETH_DBF_TEXT(TRACE, 2, "delvipa4");
 823                         memcpy(&ipaddr->u.a4.addr, addr, 4);
 824                         ipaddr->u.a4.mask = 0;
 825                 } else if (proto == QETH_PROT_IPV6) {
 826                         QETH_DBF_TEXT(TRACE, 2, "delvipa6");
 827                         memcpy(&ipaddr->u.a6.addr, addr, 16);
 828                         ipaddr->u.a6.pfxlen = 0;
 829                 }
 830                 ipaddr->type = QETH_IP_TYPE_VIPA;
 831         } else
 832                 return;
 833         if (!qeth_l3_delete_ip(card, ipaddr))
 834                 kfree(ipaddr);
 835         qeth_l3_set_ip_addr_list(card);
 836 }
 837
 838 /*
 839  * proxy ARP related functions
 840  */
 841 int qeth_l3_add_rxip(struct qeth_card *card, enum qeth_prot_versions proto,
 842               const u8 *addr)
 843 {
 844         struct qeth_ipaddr *ipaddr;
 845         unsigned long flags;
 846         int rc = 0;
 847
 848         ipaddr = qeth_l3_get_addr_buffer(proto);
 849         if (ipaddr) {
 850                 if (proto == QETH_PROT_IPV4) {
 851                         QETH_DBF_TEXT(TRACE, 2, "addrxip4");
 852                         memcpy(&ipaddr->u.a4.addr, addr, 4);
 853                         ipaddr->u.a4.mask = 0;
 854                 } else if (proto == QETH_PROT_IPV6) {
 855                         QETH_DBF_TEXT(TRACE, 2, "addrxip6");
 856                         memcpy(&ipaddr->u.a6.addr, addr, 16);
 857                         ipaddr->u.a6.pfxlen = 0;
 858                 }
 859                 ipaddr->type = QETH_IP_TYPE_RXIP;
 860                 ipaddr->set_flags = QETH_IPA_SETIP_TAKEOVER_FLAG;
 861                 ipaddr->del_flags = 0;
 862         } else
 863                 return -ENOMEM;
 864         spin_lock_irqsave(&card->ip_lock, flags);
 865         if (qeth_l3_address_exists_in_list(&card->ip_list, ipaddr, 0) ||
 866             qeth_l3_address_exists_in_list(card->ip_tbd_list, ipaddr, 0))
 867                 rc = -EEXIST;
 868         spin_unlock_irqrestore(&card->ip_lock, flags);
 869         if (rc) {
 870                 PRINT_WARN("Cannot add RXIP. Address already exists!\n");
 871                 return rc;
 872         }
 873         if (!qeth_l3_add_ip(card, ipaddr))
 874                 kfree(ipaddr);
 875         qeth_l3_set_ip_addr_list(card);
 876         return 0;
 877 }
 878
 879 void qeth_l3_del_rxip(struct qeth_card *card, enum qeth_prot_versions proto,
 880                         const u8 *addr)
 881 {
 882         struct qeth_ipaddr *ipaddr;
 883
 884         ipaddr = qeth_l3_get_addr_buffer(proto);
 885         if (ipaddr) {
 886                 if (proto == QETH_PROT_IPV4) {
 887                         QETH_DBF_TEXT(TRACE, 2, "addrxip4");
 888                         memcpy(&ipaddr->u.a4.addr, addr, 4);
 889                         ipaddr->u.a4.mask = 0;
 890                 } else if (proto == QETH_PROT_IPV6) {
 891                         QETH_DBF_TEXT(TRACE, 2, "addrxip6");
 892                         memcpy(&ipaddr->u.a6.addr, addr, 16);
 893                         ipaddr->u.a6.pfxlen = 0;
 894                 }
 895                 ipaddr->type = QETH_IP_TYPE_RXIP;
 896         } else
 897                 return;
 898         if (!qeth_l3_delete_ip(card, ipaddr))
 899                 kfree(ipaddr);
 900         qeth_l3_set_ip_addr_list(card);
 901 }
 902
 903 static int qeth_l3_register_addr_entry(struct qeth_card *card,
 904                                 struct qeth_ipaddr *addr)
 905 {
 906         char buf[50];
 907         int rc = 0;
 908         int cnt = 3;
 909
 910         if (addr->proto == QETH_PROT_IPV4) {
 911                 QETH_DBF_TEXT(TRACE, 2, "setaddr4");
 912                 QETH_DBF_HEX(TRACE, 3, &addr->u.a4.addr, sizeof(int));
 913         } else if (addr->proto == QETH_PROT_IPV6) {
 914                 QETH_DBF_TEXT(TRACE, 2, "setaddr6");
 915                 QETH_DBF_HEX(TRACE, 3, &addr->u.a6.addr, 8);
 916                 QETH_DBF_HEX(TRACE, 3, ((char *)&addr->u.a6.addr) + 8, 8);
 917         } else {
 918                 QETH_DBF_TEXT(TRACE, 2, "setaddr?");
 919                 QETH_DBF_HEX(TRACE, 3, addr, sizeof(struct qeth_ipaddr));
 920         }
 921         do {
 922                 if (addr->is_multicast)
 923                         rc =  qeth_l3_send_setdelmc(card, addr, IPA_CMD_SETIPM);
 924                 else
 925                         rc = qeth_l3_send_setdelip(card, addr, IPA_CMD_SETIP,
 926                                         addr->set_flags);
 927                 if (rc)
 928                         QETH_DBF_TEXT(TRACE, 2, "failed");
 929         } while ((--cnt > 0) && rc);
 930         if (rc) {
 931                 QETH_DBF_TEXT(TRACE, 2, "FAILED");
 932                 qeth_l3_ipaddr_to_string(addr->proto, (u8 *)&addr->u, buf);
 933                 PRINT_WARN("Could not register IP address %s (rc=0x%x/%d)\n",
 934                            buf, rc, rc);
 935         }
 936         return rc;
 937 }
 938
 939 static int qeth_l3_deregister_addr_entry(struct qeth_card *card,
 940                                                 struct qeth_ipaddr *addr)
 941 {
 942         int rc = 0;
 943
 944         if (addr->proto == QETH_PROT_IPV4) {
 945                 QETH_DBF_TEXT(TRACE, 2, "deladdr4");
 946                 QETH_DBF_HEX(TRACE, 3, &addr->u.a4.addr, sizeof(int));
 947         } else if (addr->proto == QETH_PROT_IPV6) {
 948                 QETH_DBF_TEXT(TRACE, 2, "deladdr6");
 949                 QETH_DBF_HEX(TRACE, 3, &addr->u.a6.addr, 8);
 950                 QETH_DBF_HEX(TRACE, 3, ((char *)&addr->u.a6.addr) + 8, 8);
 951         } else {
 952                 QETH_DBF_TEXT(TRACE, 2, "deladdr?");
 953                 QETH_DBF_HEX(TRACE, 3, addr, sizeof(struct qeth_ipaddr));
 954         }
 955         if (addr->is_multicast)
 956                 rc = qeth_l3_send_setdelmc(card, addr, IPA_CMD_DELIPM);
 957         else
 958                 rc = qeth_l3_send_setdelip(card, addr, IPA_CMD_DELIP,
 959                                         addr->del_flags);
 960         if (rc) {
 961                 QETH_DBF_TEXT(TRACE, 2, "failed");
 962                 /* TODO: re-activate this warning as soon as we have a
 963                  * clean mirco code
 964                 qeth_ipaddr_to_string(addr->proto, (u8 *)&addr->u, buf);
 965                 PRINT_WARN("Could not deregister IP address %s (rc=%x)\n",
 966                            buf, rc);
 967                 */
 968         }
 969
 970         return rc;
 971 }
 972
 973 static inline u8 qeth_l3_get_qeth_hdr_flags4(int cast_type)
 974 {
 975         if (cast_type == RTN_MULTICAST)
 976                 return QETH_CAST_MULTICAST;
 977         if (cast_type == RTN_BROADCAST)
 978                 return QETH_CAST_BROADCAST;
 979         return QETH_CAST_UNICAST;
 980 }
 981
 982 static inline u8 qeth_l3_get_qeth_hdr_flags6(int cast_type)
 983 {
 984         u8 ct = QETH_HDR_PASSTHRU | QETH_HDR_IPV6;
 985         if (cast_type == RTN_MULTICAST)
 986                 return ct | QETH_CAST_MULTICAST;
 987         if (cast_type == RTN_ANYCAST)
 988                 return ct | QETH_CAST_ANYCAST;
 989         if (cast_type == RTN_BROADCAST)
 990                 return ct | QETH_CAST_BROADCAST;
 991         return ct | QETH_CAST_UNICAST;
 992 }
 993
 994 static int qeth_l3_send_setadp_mode(struct qeth_card *card, __u32 command,
 995                                         __u32 mode)
 996 {
 997         int rc;
 998         struct qeth_cmd_buffer *iob;
 999         struct qeth_ipa_cmd *cmd;
1000
1001         QETH_DBF_TEXT(TRACE, 4, "adpmode");
1002
1003         iob = qeth_get_adapter_cmd(card, command,
1004                                    sizeof(struct qeth_ipacmd_setadpparms));
1005         cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
1006         cmd->data.setadapterparms.data.mode = mode;
1007         rc = qeth_send_ipa_cmd(card, iob, qeth_default_setadapterparms_cb,
1008                                NULL);
1009         return rc;
1010 }
1011
1012 static int qeth_l3_setadapter_hstr(struct qeth_card *card)
1013 {
1014         int rc;
1015
1016         QETH_DBF_TEXT(TRACE, 4, "adphstr");
1017
1018         if (qeth_adp_supported(card, IPA_SETADP_SET_BROADCAST_MODE)) {
1019                 rc = qeth_l3_send_setadp_mode(card,
1020                                         IPA_SETADP_SET_BROADCAST_MODE,
1021                                         card->options.broadcast_mode);
1022                 if (rc)
1023                         PRINT_WARN("couldn't set broadcast mode on "
1024                                    "device %s: x%x\n",
1025                                    CARD_BUS_ID(card), rc);
1026                 rc = qeth_l3_send_setadp_mode(card,
1027                                         IPA_SETADP_ALTER_MAC_ADDRESS,
1028                                         card->options.macaddr_mode);
1029                 if (rc)
1030                         PRINT_WARN("couldn't set macaddr mode on "
1031                                    "device %s: x%x\n", CARD_BUS_ID(card), rc);
1032                 return rc;
1033         }
1034         if (card->options.broadcast_mode == QETH_TR_BROADCAST_LOCAL)
1035                 PRINT_WARN("set adapter parameters not available "
1036                            "to set broadcast mode, using ALLRINGS "
1037                            "on device %s:\n", CARD_BUS_ID(card));
1038         if (card->options.macaddr_mode == QETH_TR_MACADDR_CANONICAL)
1039                 PRINT_WARN("set adapter parameters not available "
1040                            "to set macaddr mode, using NONCANONICAL "
1041                            "on device %s:\n", CARD_BUS_ID(card));
1042         return 0;
1043 }
1044
1045 static int qeth_l3_setadapter_parms(struct qeth_card *card)
1046 {
1047         int rc;
1048
1049         QETH_DBF_TEXT(SETUP, 2, "setadprm");
1050
1051         if (!qeth_is_supported(card, IPA_SETADAPTERPARMS)) {
1052                 PRINT_WARN("set adapter parameters not supported "
1053                            "on device %s.\n",
1054                            CARD_BUS_ID(card));
1055                 QETH_DBF_TEXT(SETUP, 2, " notsupp");
1056                 return 0;
1057         }
1058         rc = qeth_query_setadapterparms(card);
1059         if (rc) {
1060                 PRINT_WARN("couldn't set adapter parameters on device %s: "
1061                            "x%x\n", CARD_BUS_ID(card), rc);
1062                 return rc;
1063         }
1064         if (qeth_adp_supported(card, IPA_SETADP_ALTER_MAC_ADDRESS)) {
1065                 rc = qeth_setadpparms_change_macaddr(card);
1066                 if (rc)
1067                         PRINT_WARN("couldn't get MAC address on "
1068                                    "device %s: x%x\n",
1069                                    CARD_BUS_ID(card), rc);
1070         }
1071
1072         if ((card->info.link_type == QETH_LINK_TYPE_HSTR) ||
1073             (card->info.link_type == QETH_LINK_TYPE_LANE_TR))
1074                 rc = qeth_l3_setadapter_hstr(card);
1075
1076         return rc;
1077 }
1078
1079 static int qeth_l3_default_setassparms_cb(struct qeth_card *card,
1080                         struct qeth_reply *reply, unsigned long data)
1081 {
1082         struct qeth_ipa_cmd *cmd;
1083
1084         QETH_DBF_TEXT(TRACE, 4, "defadpcb");
1085
1086         cmd = (struct qeth_ipa_cmd *) data;
1087         if (cmd->hdr.return_code == 0) {
1088                 cmd->hdr.return_code = cmd->data.setassparms.hdr.return_code;
1089                 if (cmd->hdr.prot_version == QETH_PROT_IPV4)
1090                         card->options.ipa4.enabled_funcs = cmd->hdr.ipa_enabled;
1091                 if (cmd->hdr.prot_version == QETH_PROT_IPV6)
1092                         card->options.ipa6.enabled_funcs = cmd->hdr.ipa_enabled;
1093         }
1094         if (cmd->data.setassparms.hdr.assist_no == IPA_INBOUND_CHECKSUM &&
1095             cmd->data.setassparms.hdr.command_code == IPA_CMD_ASS_START) {
1096                 card->info.csum_mask = cmd->data.setassparms.data.flags_32bit;
1097                 QETH_DBF_TEXT_(TRACE, 3, "csum:%d", card->info.csum_mask);
1098         }
1099         return 0;
1100 }
1101
1102 static struct qeth_cmd_buffer *qeth_l3_get_setassparms_cmd(
1103         struct qeth_card *card, enum qeth_ipa_funcs ipa_func, __u16 cmd_code,
1104         __u16 len, enum qeth_prot_versions prot)
1105 {
1106         struct qeth_cmd_buffer *iob;
1107         struct qeth_ipa_cmd *cmd;
1108
1109         QETH_DBF_TEXT(TRACE, 4, "getasscm");
1110         iob = qeth_get_ipacmd_buffer(card, IPA_CMD_SETASSPARMS, prot);
1111
1112         cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
1113         cmd->data.setassparms.hdr.assist_no = ipa_func;
1114         cmd->data.setassparms.hdr.length = 8 + len;
1115         cmd->data.setassparms.hdr.command_code = cmd_code;
1116         cmd->data.setassparms.hdr.return_code = 0;
1117         cmd->data.setassparms.hdr.seq_no = 0;
1118
1119         return iob;
1120 }
1121
1122 static int qeth_l3_send_setassparms(struct qeth_card *card,
1123         struct qeth_cmd_buffer *iob, __u16 len, long data,
1124         int (*reply_cb)(struct qeth_card *, struct qeth_reply *,
1125                 unsigned long),
1126         void *reply_param)
1127 {
1128         int rc;
1129         struct qeth_ipa_cmd *cmd;
1130
1131         QETH_DBF_TEXT(TRACE, 4, "sendassp");
1132
1133         cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
1134         if (len <= sizeof(__u32))
1135                 cmd->data.setassparms.data.flags_32bit = (__u32) data;
1136         else   /* (len > sizeof(__u32)) */
1137                 memcpy(&cmd->data.setassparms.data, (void *) data, len);
1138
1139         rc = qeth_send_ipa_cmd(card, iob, reply_cb, reply_param);
1140         return rc;
1141 }
1142
1143 #ifdef CONFIG_QETH_IPV6
1144 static int qeth_l3_send_simple_setassparms_ipv6(struct qeth_card *card,
1145                 enum qeth_ipa_funcs ipa_func, __u16 cmd_code)
1146 {
1147         int rc;
1148         struct qeth_cmd_buffer *iob;
1149
1150         QETH_DBF_TEXT(TRACE, 4, "simassp6");
1151         iob = qeth_l3_get_setassparms_cmd(card, ipa_func, cmd_code,
1152                                        0, QETH_PROT_IPV6);
1153         rc = qeth_l3_send_setassparms(card, iob, 0, 0,
1154                                    qeth_l3_default_setassparms_cb, NULL);
1155         return rc;
1156 }
1157 #endif
1158
1159 static int qeth_l3_send_simple_setassparms(struct qeth_card *card,
1160                 enum qeth_ipa_funcs ipa_func, __u16 cmd_code, long data)
1161 {
1162         int rc;
1163         int length = 0;
1164         struct qeth_cmd_buffer *iob;
1165
1166         QETH_DBF_TEXT(TRACE, 4, "simassp4");
1167         if (data)
1168                 length = sizeof(__u32);
1169         iob = qeth_l3_get_setassparms_cmd(card, ipa_func, cmd_code,
1170                                        length, QETH_PROT_IPV4);
1171         rc = qeth_l3_send_setassparms(card, iob, length, data,
1172                                    qeth_l3_default_setassparms_cb, NULL);
1173         return rc;
1174 }
1175
1176 static int qeth_l3_start_ipa_arp_processing(struct qeth_card *card)
1177 {
1178         int rc;
1179
1180         QETH_DBF_TEXT(TRACE, 3, "ipaarp");
1181
1182         if (!qeth_is_supported(card, IPA_ARP_PROCESSING)) {
1183                 PRINT_WARN("ARP processing not supported "
1184                            "on %s!\n", QETH_CARD_IFNAME(card));
1185                 return 0;
1186         }
1187         rc = qeth_l3_send_simple_setassparms(card, IPA_ARP_PROCESSING,
1188                                         IPA_CMD_ASS_START, 0);
1189         if (rc) {
1190                 PRINT_WARN("Could not start ARP processing "
1191                            "assist on %s: 0x%x\n",
1192                            QETH_CARD_IFNAME(card), rc);
1193         }
1194         return rc;
1195 }
1196
1197 static int qeth_l3_start_ipa_ip_fragmentation(struct qeth_card *card)
1198 {
1199         int rc;
1200
1201         QETH_DBF_TEXT(TRACE, 3, "ipaipfrg");
1202
1203         if (!qeth_is_supported(card, IPA_IP_FRAGMENTATION)) {
1204                 PRINT_INFO("Hardware IP fragmentation not supported on %s\n",
1205                            QETH_CARD_IFNAME(card));
1206                 return  -EOPNOTSUPP;
1207         }
1208
1209         rc = qeth_l3_send_simple_setassparms(card, IPA_IP_FRAGMENTATION,
1210                                           IPA_CMD_ASS_START, 0);
1211         if (rc) {
1212                 PRINT_WARN("Could not start Hardware IP fragmentation "
1213                            "assist on %s: 0x%x\n",
1214                            QETH_CARD_IFNAME(card), rc);
1215         } else
1216                 PRINT_INFO("Hardware IP fragmentation enabled \n");
1217         return rc;
1218 }
1219
1220 static int qeth_l3_start_ipa_source_mac(struct qeth_card *card)
1221 {
1222         int rc;
1223
1224         QETH_DBF_TEXT(TRACE, 3, "stsrcmac");
1225
1226         if (!card->options.fake_ll)
1227                 return -EOPNOTSUPP;
1228
1229         if (!qeth_is_supported(card, IPA_SOURCE_MAC)) {
1230                 PRINT_INFO("Inbound source address not "
1231                            "supported on %s\n", QETH_CARD_IFNAME(card));
1232                 return -EOPNOTSUPP;
1233         }
1234
1235         rc = qeth_l3_send_simple_setassparms(card, IPA_SOURCE_MAC,
1236                                           IPA_CMD_ASS_START, 0);
1237         if (rc)
1238                 PRINT_WARN("Could not start inbound source "
1239                            "assist on %s: 0x%x\n",
1240                            QETH_CARD_IFNAME(card), rc);
1241         return rc;
1242 }
1243
1244 static int qeth_l3_start_ipa_vlan(struct qeth_card *card)
1245 {
1246         int rc = 0;
1247
1248         QETH_DBF_TEXT(TRACE, 3, "strtvlan");
1249
1250         if (!qeth_is_supported(card, IPA_FULL_VLAN)) {
1251                 PRINT_WARN("VLAN not supported on %s\n",
1252                                 QETH_CARD_IFNAME(card));
1253                 return -EOPNOTSUPP;
1254         }
1255
1256         rc = qeth_l3_send_simple_setassparms(card, IPA_VLAN_PRIO,
1257                                           IPA_CMD_ASS_START, 0);
1258         if (rc) {
1259                 PRINT_WARN("Could not start vlan "
1260                            "assist on %s: 0x%x\n",
1261                            QETH_CARD_IFNAME(card), rc);
1262         } else {
1263                 PRINT_INFO("VLAN enabled \n");
1264         }
1265         return rc;
1266 }
1267
1268 static int qeth_l3_start_ipa_multicast(struct qeth_card *card)
1269 {
1270         int rc;
1271
1272         QETH_DBF_TEXT(TRACE, 3, "stmcast");
1273
1274         if (!qeth_is_supported(card, IPA_MULTICASTING)) {
1275                 PRINT_WARN("Multicast not supported on %s\n",
1276                            QETH_CARD_IFNAME(card));
1277                 return -EOPNOTSUPP;
1278         }
1279
1280         rc = qeth_l3_send_simple_setassparms(card, IPA_MULTICASTING,
1281                                           IPA_CMD_ASS_START, 0);
1282         if (rc) {
1283                 PRINT_WARN("Could not start multicast "
1284                            "assist on %s: rc=%i\n",
1285                            QETH_CARD_IFNAME(card), rc);
1286         } else {
1287                 PRINT_INFO("Multicast enabled\n");
1288                 card->dev->flags |= IFF_MULTICAST;
1289         }
1290         return rc;
1291 }
1292
1293 static int qeth_l3_query_ipassists_cb(struct qeth_card *card,
1294                 struct qeth_reply *reply, unsigned long data)
1295 {
1296         struct qeth_ipa_cmd *cmd;
1297
1298         QETH_DBF_TEXT(SETUP, 2, "qipasscb");
1299
1300         cmd = (struct qeth_ipa_cmd *) data;
1301         if (cmd->hdr.prot_version == QETH_PROT_IPV4) {
1302                 card->options.ipa4.supported_funcs = cmd->hdr.ipa_supported;
1303                 card->options.ipa4.enabled_funcs = cmd->hdr.ipa_enabled;
1304         } else {
1305                 card->options.ipa6.supported_funcs = cmd->hdr.ipa_supported;
1306                 card->options.ipa6.enabled_funcs = cmd->hdr.ipa_enabled;
1307         }
1308         QETH_DBF_TEXT(SETUP, 2, "suppenbl");
1309         QETH_DBF_TEXT_(SETUP, 2, "%x", cmd->hdr.ipa_supported);
1310         QETH_DBF_TEXT_(SETUP, 2, "%x", cmd->hdr.ipa_enabled);
1311         return 0;
1312 }
1313
1314 static int qeth_l3_query_ipassists(struct qeth_card *card,
1315                                 enum qeth_prot_versions prot)
1316 {
1317         int rc;
1318         struct qeth_cmd_buffer *iob;
1319
1320         QETH_DBF_TEXT_(SETUP, 2, "qipassi%i", prot);
1321         iob = qeth_get_ipacmd_buffer(card, IPA_CMD_QIPASSIST, prot);
1322         rc = qeth_send_ipa_cmd(card, iob, qeth_l3_query_ipassists_cb, NULL);
1323         return rc;
1324 }
1325
1326 #ifdef CONFIG_QETH_IPV6
1327 static int qeth_l3_softsetup_ipv6(struct qeth_card *card)
1328 {
1329         int rc;
1330
1331         QETH_DBF_TEXT(TRACE, 3, "softipv6");
1332
1333         if (card->info.type == QETH_CARD_TYPE_IQD)
1334                 goto out;
1335
1336         rc = qeth_l3_query_ipassists(card, QETH_PROT_IPV6);
1337         if (rc) {
1338                 PRINT_ERR("IPv6 query ipassist failed on %s\n",
1339                           QETH_CARD_IFNAME(card));
1340                 return rc;
1341         }
1342         rc = qeth_l3_send_simple_setassparms(card, IPA_IPV6,
1343                                           IPA_CMD_ASS_START, 3);
1344         if (rc) {
1345                 PRINT_WARN("IPv6 start assist (version 4) failed "
1346                            "on %s: 0x%x\n",
1347                            QETH_CARD_IFNAME(card), rc);
1348                 return rc;
1349         }
1350         rc = qeth_l3_send_simple_setassparms_ipv6(card, IPA_IPV6,
1351                                                IPA_CMD_ASS_START);
1352         if (rc) {
1353                 PRINT_WARN("IPV6 start assist (version 6) failed  "
1354                            "on %s: 0x%x\n",
1355                            QETH_CARD_IFNAME(card), rc);
1356                 return rc;
1357         }
1358         rc = qeth_l3_send_simple_setassparms_ipv6(card, IPA_PASSTHRU,
1359                                                IPA_CMD_ASS_START);
1360         if (rc) {
1361                 PRINT_WARN("Could not enable passthrough "
1362                            "on %s: 0x%x\n",
1363                            QETH_CARD_IFNAME(card), rc);
1364                 return rc;
1365         }
1366 out:
1367         PRINT_INFO("IPV6 enabled \n");
1368         return 0;
1369 }
1370 #endif
1371
1372 static int qeth_l3_start_ipa_ipv6(struct qeth_card *card)
1373 {
1374         int rc = 0;
1375
1376         QETH_DBF_TEXT(TRACE, 3, "strtipv6");
1377
1378         if (!qeth_is_supported(card, IPA_IPV6)) {
1379                 PRINT_WARN("IPv6 not supported on %s\n",
1380                            QETH_CARD_IFNAME(card));
1381                 return 0;
1382         }
1383 #ifdef CONFIG_QETH_IPV6
1384         rc = qeth_l3_softsetup_ipv6(card);
1385 #endif
1386         return rc ;
1387 }
1388
1389 static int qeth_l3_start_ipa_broadcast(struct qeth_card *card)
1390 {
1391         int rc;
1392
1393         QETH_DBF_TEXT(TRACE, 3, "stbrdcst");
1394         card->info.broadcast_capable = 0;
1395         if (!qeth_is_supported(card, IPA_FILTERING)) {
1396                 PRINT_WARN("Broadcast not supported on %s\n",
1397                            QETH_CARD_IFNAME(card));
1398                 rc = -EOPNOTSUPP;
1399                 goto out;
1400         }
1401         rc = qeth_l3_send_simple_setassparms(card, IPA_FILTERING,
1402                                           IPA_CMD_ASS_START, 0);
1403         if (rc) {
1404                 PRINT_WARN("Could not enable broadcasting filtering "
1405                            "on %s: 0x%x\n",
1406                            QETH_CARD_IFNAME(card), rc);
1407                 goto out;
1408         }
1409
1410         rc = qeth_l3_send_simple_setassparms(card, IPA_FILTERING,
1411                                           IPA_CMD_ASS_CONFIGURE, 1);
1412         if (rc) {
1413                 PRINT_WARN("Could not set up broadcast filtering on %s: 0x%x\n",
1414                            QETH_CARD_IFNAME(card), rc);
1415                 goto out;
1416         }
1417         card->info.broadcast_capable = QETH_BROADCAST_WITH_ECHO;
1418         PRINT_INFO("Broadcast enabled \n");
1419         rc = qeth_l3_send_simple_setassparms(card, IPA_FILTERING,
1420                                           IPA_CMD_ASS_ENABLE, 1);
1421         if (rc) {
1422                 PRINT_WARN("Could not set up broadcast echo filtering on "
1423                            "%s: 0x%x\n", QETH_CARD_IFNAME(card), rc);
1424                 goto out;
1425         }
1426         card->info.broadcast_capable = QETH_BROADCAST_WITHOUT_ECHO;
1427 out:
1428         if (card->info.broadcast_capable)
1429                 card->dev->flags |= IFF_BROADCAST;
1430         else
1431                 card->dev->flags &= ~IFF_BROADCAST;
1432         return rc;
1433 }
1434
1435 static int qeth_l3_send_checksum_command(struct qeth_card *card)
1436 {
1437         int rc;
1438
1439         rc = qeth_l3_send_simple_setassparms(card, IPA_INBOUND_CHECKSUM,
1440                                           IPA_CMD_ASS_START, 0);
1441         if (rc) {
1442                 PRINT_WARN("Starting Inbound HW Checksumming failed on %s: "
1443                            "0x%x,\ncontinuing using Inbound SW Checksumming\n",
1444                            QETH_CARD_IFNAME(card), rc);
1445                 return rc;
1446         }
1447         rc = qeth_l3_send_simple_setassparms(card, IPA_INBOUND_CHECKSUM,
1448                                           IPA_CMD_ASS_ENABLE,
1449                                           card->info.csum_mask);
1450         if (rc) {
1451                 PRINT_WARN("Enabling Inbound HW Checksumming failed on %s: "
1452                            "0x%x,\ncontinuing using Inbound SW Checksumming\n",
1453                            QETH_CARD_IFNAME(card), rc);
1454                 return rc;
1455         }
1456         return 0;
1457 }
1458
1459 static int qeth_l3_start_ipa_checksum(struct qeth_card *card)
1460 {
1461         int rc = 0;
1462
1463         QETH_DBF_TEXT(TRACE, 3, "strtcsum");
1464
1465         if (card->options.checksum_type == NO_CHECKSUMMING) {
1466                 PRINT_WARN("Using no checksumming on %s.\n",
1467                            QETH_CARD_IFNAME(card));
1468                 return 0;
1469         }
1470         if (card->options.checksum_type == SW_CHECKSUMMING) {
1471                 PRINT_WARN("Using SW checksumming on %s.\n",
1472                            QETH_CARD_IFNAME(card));
1473                 return 0;
1474         }
1475         if (!qeth_is_supported(card, IPA_INBOUND_CHECKSUM)) {
1476                 PRINT_WARN("Inbound HW Checksumming not "
1477                            "supported on %s,\ncontinuing "
1478                            "using Inbound SW Checksumming\n",
1479                            QETH_CARD_IFNAME(card));
1480                 card->options.checksum_type = SW_CHECKSUMMING;
1481                 return 0;
1482         }
1483         rc = qeth_l3_send_checksum_command(card);
1484         if (!rc)
1485                 PRINT_INFO("HW Checksumming (inbound) enabled \n");
1486
1487         return rc;
1488 }
1489
1490 static int qeth_l3_start_ipa_tso(struct qeth_card *card)
1491 {
1492         int rc;
1493
1494         QETH_DBF_TEXT(TRACE, 3, "sttso");
1495
1496         if (!qeth_is_supported(card, IPA_OUTBOUND_TSO)) {
1497                 PRINT_WARN("Outbound TSO not supported on %s\n",
1498                            QETH_CARD_IFNAME(card));
1499                 rc = -EOPNOTSUPP;
1500         } else {
1501                 rc = qeth_l3_send_simple_setassparms(card, IPA_OUTBOUND_TSO,
1502                                                 IPA_CMD_ASS_START, 0);
1503                 if (rc)
1504                         PRINT_WARN("Could not start outbound TSO "
1505                                    "assist on %s: rc=%i\n",
1506                                    QETH_CARD_IFNAME(card), rc);
1507                 else
1508                         PRINT_INFO("Outbound TSO enabled\n");
1509         }
1510         if (rc && (card->options.large_send == QETH_LARGE_SEND_TSO)) {
1511                 card->options.large_send = QETH_LARGE_SEND_NO;
1512                 card->dev->features &= ~(NETIF_F_TSO | NETIF_F_SG);
1513         }
1514         return rc;
1515 }
1516
1517 static int qeth_l3_start_ipassists(struct qeth_card *card)
1518 {
1519         QETH_DBF_TEXT(TRACE, 3, "strtipas");
1520         qeth_l3_start_ipa_arp_processing(card); /* go on*/
1521         qeth_l3_start_ipa_ip_fragmentation(card);       /* go on*/
1522         qeth_l3_start_ipa_source_mac(card);     /* go on*/
1523         qeth_l3_start_ipa_vlan(card);           /* go on*/
1524         qeth_l3_start_ipa_multicast(card);              /* go on*/
1525         qeth_l3_start_ipa_ipv6(card);           /* go on*/
1526         qeth_l3_start_ipa_broadcast(card);              /* go on*/
1527         qeth_l3_start_ipa_checksum(card);               /* go on*/
1528         qeth_l3_start_ipa_tso(card);            /* go on*/
1529         return 0;
1530 }
1531
1532 static int qeth_l3_put_unique_id(struct qeth_card *card)
1533 {
1534
1535         int rc = 0;
1536         struct qeth_cmd_buffer *iob;
1537         struct qeth_ipa_cmd *cmd;
1538
1539         QETH_DBF_TEXT(TRACE, 2, "puniqeid");
1540
1541         if ((card->info.unique_id & UNIQUE_ID_NOT_BY_CARD) ==
1542                 UNIQUE_ID_NOT_BY_CARD)
1543                 return -1;
1544         iob = qeth_get_ipacmd_buffer(card, IPA_CMD_DESTROY_ADDR,
1545                                      QETH_PROT_IPV6);
1546         cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
1547         *((__u16 *) &cmd->data.create_destroy_addr.unique_id[6]) =
1548                                 card->info.unique_id;
1549         memcpy(&cmd->data.create_destroy_addr.unique_id[0],
1550                card->dev->dev_addr, OSA_ADDR_LEN);
1551         rc = qeth_send_ipa_cmd(card, iob, NULL, NULL);
1552         return rc;
1553 }
1554
1555 static int qeth_l3_iqd_read_initial_mac_cb(struct qeth_card *card,
1556                 struct qeth_reply *reply, unsigned long data)
1557 {
1558         struct qeth_ipa_cmd *cmd;
1559
1560         cmd = (struct qeth_ipa_cmd *) data;
1561         if (cmd->hdr.return_code == 0)
1562                 memcpy(card->dev->dev_addr,
1563                         cmd->data.create_destroy_addr.unique_id, ETH_ALEN);
1564         else
1565                 random_ether_addr(card->dev->dev_addr);
1566
1567         return 0;
1568 }
1569
1570 static int qeth_l3_iqd_read_initial_mac(struct qeth_card *card)
1571 {
1572         int rc = 0;
1573         struct qeth_cmd_buffer *iob;
1574         struct qeth_ipa_cmd *cmd;
1575
1576         QETH_DBF_TEXT(SETUP, 2, "hsrmac");
1577
1578         iob = qeth_get_ipacmd_buffer(card, IPA_CMD_CREATE_ADDR,
1579                                      QETH_PROT_IPV6);
1580         cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
1581         *((__u16 *) &cmd->data.create_destroy_addr.unique_id[6]) =
1582                         card->info.unique_id;
1583
1584         rc = qeth_send_ipa_cmd(card, iob, qeth_l3_iqd_read_initial_mac_cb,
1585                                 NULL);
1586         return rc;
1587 }
1588
1589 static int qeth_l3_get_unique_id_cb(struct qeth_card *card,
1590                 struct qeth_reply *reply, unsigned long data)
1591 {
1592         struct qeth_ipa_cmd *cmd;
1593
1594         cmd = (struct qeth_ipa_cmd *) data;
1595         if (cmd->hdr.return_code == 0)
1596                 card->info.unique_id = *((__u16 *)
1597                                 &cmd->data.create_destroy_addr.unique_id[6]);
1598         else {
1599                 card->info.unique_id =  UNIQUE_ID_IF_CREATE_ADDR_FAILED |
1600                                         UNIQUE_ID_NOT_BY_CARD;
1601                 PRINT_WARN("couldn't get a unique id from the card on device "
1602                            "%s (result=x%x), using default id. ipv6 "
1603                            "autoconfig on other lpars may lead to duplicate "
1604                            "ip addresses. please use manually "
1605                            "configured ones.\n",
1606                            CARD_BUS_ID(card), cmd->hdr.return_code);
1607         }
1608         return 0;
1609 }
1610
1611 static int qeth_l3_get_unique_id(struct qeth_card *card)
1612 {
1613         int rc = 0;
1614         struct qeth_cmd_buffer *iob;
1615         struct qeth_ipa_cmd *cmd;
1616
1617         QETH_DBF_TEXT(SETUP, 2, "guniqeid");
1618
1619         if (!qeth_is_supported(card, IPA_IPV6)) {
1620                 card->info.unique_id =  UNIQUE_ID_IF_CREATE_ADDR_FAILED |
1621                                         UNIQUE_ID_NOT_BY_CARD;
1622                 return 0;
1623         }
1624
1625         iob = qeth_get_ipacmd_buffer(card, IPA_CMD_CREATE_ADDR,
1626                                      QETH_PROT_IPV6);
1627         cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
1628         *((__u16 *) &cmd->data.create_destroy_addr.unique_id[6]) =
1629                         card->info.unique_id;
1630
1631         rc = qeth_send_ipa_cmd(card, iob, qeth_l3_get_unique_id_cb, NULL);
1632         return rc;
1633 }
1634
1635 static void qeth_l3_get_mac_for_ipm(__u32 ipm, char *mac,
1636                                 struct net_device *dev)
1637 {
1638         if (dev->type == ARPHRD_IEEE802_TR)
1639                 ip_tr_mc_map(ipm, mac);
1640         else
1641                 ip_eth_mc_map(ipm, mac);
1642 }
1643
1644 static void qeth_l3_add_mc(struct qeth_card *card, struct in_device *in4_dev)
1645 {
1646         struct qeth_ipaddr *ipm;
1647         struct ip_mc_list *im4;
1648         char buf[MAX_ADDR_LEN];
1649
1650         QETH_DBF_TEXT(TRACE, 4, "addmc");
1651         for (im4 = in4_dev->mc_list; im4; im4 = im4->next) {
1652                 qeth_l3_get_mac_for_ipm(im4->multiaddr, buf, in4_dev->dev);
1653                 ipm = qeth_l3_get_addr_buffer(QETH_PROT_IPV4);
1654                 if (!ipm)
1655                         continue;
1656                 ipm->u.a4.addr = im4->multiaddr;
1657                 memcpy(ipm->mac, buf, OSA_ADDR_LEN);
1658                 ipm->is_multicast = 1;
1659                 if (!qeth_l3_add_ip(card, ipm))
1660                         kfree(ipm);
1661         }
1662 }
1663
1664 static void qeth_l3_add_vlan_mc(struct qeth_card *card)
1665 {
1666         struct in_device *in_dev;
1667         struct vlan_group *vg;
1668         int i;
1669
1670         QETH_DBF_TEXT(TRACE, 4, "addmcvl");
1671         if (!qeth_is_supported(card, IPA_FULL_VLAN) || (card->vlangrp == NULL))
1672                 return;
1673
1674         vg = card->vlangrp;
1675         for (i = 0; i < VLAN_GROUP_ARRAY_LEN; i++) {
1676                 struct net_device *netdev = vlan_group_get_device(vg, i);
1677                 if (netdev == NULL ||
1678                     !(netdev->flags & IFF_UP))
1679                         continue;
1680                 in_dev = in_dev_get(netdev);
1681                 if (!in_dev)
1682                         continue;
1683                 read_lock(&in_dev->mc_list_lock);
1684                 qeth_l3_add_mc(card, in_dev);
1685                 read_unlock(&in_dev->mc_list_lock);
1686                 in_dev_put(in_dev);
1687         }
1688 }
1689
1690 static void qeth_l3_add_multicast_ipv4(struct qeth_card *card)
1691 {
1692         struct in_device *in4_dev;
1693
1694         QETH_DBF_TEXT(TRACE, 4, "chkmcv4");
1695         in4_dev = in_dev_get(card->dev);
1696         if (in4_dev == NULL)
1697                 return;
1698         read_lock(&in4_dev->mc_list_lock);
1699         qeth_l3_add_mc(card, in4_dev);
1700         qeth_l3_add_vlan_mc(card);
1701         read_unlock(&in4_dev->mc_list_lock);
1702         in_dev_put(in4_dev);
1703 }
1704
1705 #ifdef CONFIG_QETH_IPV6
1706 static void qeth_l3_add_mc6(struct qeth_card *card, struct inet6_dev *in6_dev)
1707 {
1708         struct qeth_ipaddr *ipm;
1709         struct ifmcaddr6 *im6;
1710         char buf[MAX_ADDR_LEN];
1711
1712         QETH_DBF_TEXT(TRACE, 4, "addmc6");
1713         for (im6 = in6_dev->mc_list; im6 != NULL; im6 = im6->next) {
1714                 ndisc_mc_map(&im6->mca_addr, buf, in6_dev->dev, 0);
1715                 ipm = qeth_l3_get_addr_buffer(QETH_PROT_IPV6);
1716                 if (!ipm)
1717                         continue;
1718                 ipm->is_multicast = 1;
1719                 memcpy(ipm->mac, buf, OSA_ADDR_LEN);
1720                 memcpy(&ipm->u.a6.addr, &im6->mca_addr.s6_addr,
1721                        sizeof(struct in6_addr));
1722                 if (!qeth_l3_add_ip(card, ipm))
1723                         kfree(ipm);
1724         }
1725 }
1726
1727 static void qeth_l3_add_vlan_mc6(struct qeth_card *card)
1728 {
1729         struct inet6_dev *in_dev;
1730         struct vlan_group *vg;
1731         int i;
1732
1733         QETH_DBF_TEXT(TRACE, 4, "admc6vl");
1734         if (!qeth_is_supported(card, IPA_FULL_VLAN) || (card->vlangrp == NULL))
1735                 return;
1736
1737         vg = card->vlangrp;
1738         for (i = 0; i < VLAN_GROUP_ARRAY_LEN; i++) {
1739                 struct net_device *netdev = vlan_group_get_device(vg, i);
1740                 if (netdev == NULL ||
1741                     !(netdev->flags & IFF_UP))
1742                         continue;
1743                 in_dev = in6_dev_get(netdev);
1744                 if (!in_dev)
1745                         continue;
1746                 read_lock_bh(&in_dev->lock);
1747                 qeth_l3_add_mc6(card, in_dev);
1748                 read_unlock_bh(&in_dev->lock);
1749                 in6_dev_put(in_dev);
1750         }
1751 }
1752
1753 static void qeth_l3_add_multicast_ipv6(struct qeth_card *card)
1754 {
1755         struct inet6_dev *in6_dev;
1756
1757         QETH_DBF_TEXT(TRACE, 4, "chkmcv6");
1758         if (!qeth_is_supported(card, IPA_IPV6))
1759                 return ;
1760         in6_dev = in6_dev_get(card->dev);
1761         if (in6_dev == NULL)
1762                 return;
1763         read_lock_bh(&in6_dev->lock);
1764         qeth_l3_add_mc6(card, in6_dev);
1765         qeth_l3_add_vlan_mc6(card);
1766         read_unlock_bh(&in6_dev->lock);
1767         in6_dev_put(in6_dev);
1768 }
1769 #endif /* CONFIG_QETH_IPV6 */
1770
1771 static void qeth_l3_free_vlan_addresses4(struct qeth_card *card,
1772                         unsigned short vid)
1773 {
1774         struct in_device *in_dev;
1775         struct in_ifaddr *ifa;
1776         struct qeth_ipaddr *addr;
1777
1778         QETH_DBF_TEXT(TRACE, 4, "frvaddr4");
1779
1780         in_dev = in_dev_get(vlan_group_get_device(card->vlangrp, vid));
1781         if (!in_dev)
1782                 return;
1783         for (ifa = in_dev->ifa_list; ifa; ifa = ifa->ifa_next) {
1784                 addr = qeth_l3_get_addr_buffer(QETH_PROT_IPV4);
1785                 if (addr) {
1786                         addr->u.a4.addr = ifa->ifa_address;
1787                         addr->u.a4.mask = ifa->ifa_mask;
1788                         addr->type = QETH_IP_TYPE_NORMAL;
1789                         if (!qeth_l3_delete_ip(card, addr))
1790                                 kfree(addr);
1791                 }
1792         }
1793         in_dev_put(in_dev);
1794 }
1795
1796 static void qeth_l3_free_vlan_addresses6(struct qeth_card *card,
1797                         unsigned short vid)
1798 {
1799 #ifdef CONFIG_QETH_IPV6
1800         struct inet6_dev *in6_dev;
1801         struct inet6_ifaddr *ifa;
1802         struct qeth_ipaddr *addr;
1803
1804         QETH_DBF_TEXT(TRACE, 4, "frvaddr6");
1805
1806         in6_dev = in6_dev_get(vlan_group_get_device(card->vlangrp, vid));
1807         if (!in6_dev)
1808                 return;
1809         for (ifa = in6_dev->addr_list; ifa; ifa = ifa->lst_next) {
1810                 addr = qeth_l3_get_addr_buffer(QETH_PROT_IPV6);
1811                 if (addr) {
1812                         memcpy(&addr->u.a6.addr, &ifa->addr,
1813                                sizeof(struct in6_addr));
1814                         addr->u.a6.pfxlen = ifa->prefix_len;
1815                         addr->type = QETH_IP_TYPE_NORMAL;
1816                         if (!qeth_l3_delete_ip(card, addr))
1817                                 kfree(addr);
1818                 }
1819         }
1820         in6_dev_put(in6_dev);
1821 #endif /* CONFIG_QETH_IPV6 */
1822 }
1823
1824 static void qeth_l3_free_vlan_addresses(struct qeth_card *card,
1825                         unsigned short vid)
1826 {
1827         if (!card->vlangrp)
1828                 return;
1829         qeth_l3_free_vlan_addresses4(card, vid);
1830         qeth_l3_free_vlan_addresses6(card, vid);
1831 }
1832
1833 static void qeth_l3_vlan_rx_register(struct net_device *dev,
1834                         struct vlan_group *grp)
1835 {
1836         struct qeth_card *card = netdev_priv(dev);
1837         unsigned long flags;
1838
1839         QETH_DBF_TEXT(TRACE, 4, "vlanreg");
1840         spin_lock_irqsave(&card->vlanlock, flags);
1841         card->vlangrp = grp;
1842         spin_unlock_irqrestore(&card->vlanlock, flags);
1843 }
1844
1845 static void qeth_l3_vlan_rx_add_vid(struct net_device *dev, unsigned short vid)
1846 {
1847         struct net_device *vlandev;
1848         struct qeth_card *card = (struct qeth_card *) dev->priv;
1849         struct in_device *in_dev;
1850
1851         if (card->info.type == QETH_CARD_TYPE_IQD)
1852                 return;
1853
1854         vlandev = vlan_group_get_device(card->vlangrp, vid);
1855         vlandev->neigh_setup = qeth_l3_neigh_setup;
1856
1857         in_dev = in_dev_get(vlandev);
1858 #ifdef CONFIG_SYSCTL
1859         neigh_sysctl_unregister(in_dev->arp_parms);
1860 #endif
1861         neigh_parms_release(&arp_tbl, in_dev->arp_parms);
1862
1863         in_dev->arp_parms = neigh_parms_alloc(vlandev, &arp_tbl);
1864 #ifdef CONFIG_SYSCTL
1865         neigh_sysctl_register(vlandev, in_dev->arp_parms, NET_IPV4,
1866                               NET_IPV4_NEIGH, "ipv4", NULL, NULL);
1867 #endif
1868         in_dev_put(in_dev);
1869         return;
1870 }
1871
1872 static void qeth_l3_vlan_rx_kill_vid(struct net_device *dev, unsigned short vid)
1873 {
1874         struct qeth_card *card = netdev_priv(dev);
1875         unsigned long flags;
1876
1877         QETH_DBF_TEXT_(TRACE, 4, "kid:%d", vid);
1878         spin_lock_irqsave(&card->vlanlock, flags);
1879         /* unregister IP addresses of vlan device */
1880         qeth_l3_free_vlan_addresses(card, vid);
1881         vlan_group_set_device(card->vlangrp, vid, NULL);
1882         spin_unlock_irqrestore(&card->vlanlock, flags);
1883         qeth_l3_set_multicast_list(card->dev);
1884 }
1885
1886 static inline __u16 qeth_l3_rebuild_skb(struct qeth_card *card,
1887                         struct sk_buff *skb, struct qeth_hdr *hdr)
1888 {
1889         unsigned short vlan_id = 0;
1890         __be16 prot;
1891         struct iphdr *ip_hdr;
1892         unsigned char tg_addr[MAX_ADDR_LEN];
1893
1894         if (!(hdr->hdr.l3.flags & QETH_HDR_PASSTHRU)) {
1895                 prot = htons((hdr->hdr.l3.flags & QETH_HDR_IPV6)? ETH_P_IPV6 :
1896                               ETH_P_IP);
1897                 switch (hdr->hdr.l3.flags & QETH_HDR_CAST_MASK) {
1898                 case QETH_CAST_MULTICAST:
1899                         switch (prot) {
1900 #ifdef CONFIG_QETH_IPV6
1901                         case __constant_htons(ETH_P_IPV6):
1902                                 ndisc_mc_map((struct in6_addr *)
1903                                      skb->data + 24,
1904                                      tg_addr, card->dev, 0);
1905                                 break;
1906 #endif
1907                         case __constant_htons(ETH_P_IP):
1908                                 ip_hdr = (struct iphdr *)skb->data;
1909                                 (card->dev->type == ARPHRD_IEEE802_TR) ?
1910                                 ip_tr_mc_map(ip_hdr->daddr, tg_addr):
1911                                 ip_eth_mc_map(ip_hdr->daddr, tg_addr);
1912                                 break;
1913                         default:
1914                                 memcpy(tg_addr, card->dev->broadcast,
1915                                         card->dev->addr_len);
1916                         }
1917                         card->stats.multicast++;
1918                         skb->pkt_type = PACKET_MULTICAST;
1919                         break;
1920                 case QETH_CAST_BROADCAST:
1921                         memcpy(tg_addr, card->dev->broadcast,
1922                                 card->dev->addr_len);
1923                         card->stats.multicast++;
1924                         skb->pkt_type = PACKET_BROADCAST;
1925                         break;
1926                 case QETH_CAST_UNICAST:
1927                 case QETH_CAST_ANYCAST:
1928                 case QETH_CAST_NOCAST:
1929                 default:
1930                         skb->pkt_type = PACKET_HOST;
1931                         memcpy(tg_addr, card->dev->dev_addr,
1932                                 card->dev->addr_len);
1933                 }
1934                 card->dev->header_ops->create(skb, card->dev, prot, tg_addr,
1935                                               "FAKELL", card->dev->addr_len);
1936         }
1937
1938 #ifdef CONFIG_TR
1939         if (card->dev->type == ARPHRD_IEEE802_TR)
1940                 skb->protocol = tr_type_trans(skb, card->dev);
1941         else
1942 #endif
1943                 skb->protocol = eth_type_trans(skb, card->dev);
1944
1945         if (hdr->hdr.l3.ext_flags &
1946             (QETH_HDR_EXT_VLAN_FRAME | QETH_HDR_EXT_INCLUDE_VLAN_TAG)) {
1947                 vlan_id = (hdr->hdr.l3.ext_flags & QETH_HDR_EXT_VLAN_FRAME)?
1948                  hdr->hdr.l3.vlan_id : *((u16 *)&hdr->hdr.l3.dest_addr[12]);
1949         }
1950
1951         skb->ip_summed = card->options.checksum_type;
1952         if (card->options.checksum_type == HW_CHECKSUMMING) {
1953                 if ((hdr->hdr.l3.ext_flags &
1954                       (QETH_HDR_EXT_CSUM_HDR_REQ |
1955                        QETH_HDR_EXT_CSUM_TRANSP_REQ)) ==
1956                      (QETH_HDR_EXT_CSUM_HDR_REQ |
1957                       QETH_HDR_EXT_CSUM_TRANSP_REQ))
1958                         skb->ip_summed = CHECKSUM_UNNECESSARY;
1959                 else
1960                         skb->ip_summed = SW_CHECKSUMMING;
1961         }
1962
1963         return vlan_id;
1964 }
1965
1966 static void qeth_l3_process_inbound_buffer(struct qeth_card *card,
1967                             struct qeth_qdio_buffer *buf, int index)
1968 {
1969         struct qdio_buffer_element *element;
1970         struct sk_buff *skb;
1971         struct qeth_hdr *hdr;
1972         int offset;
1973         __u16 vlan_tag = 0;
1974         unsigned int len;
1975
1976         /* get first element of current buffer */
1977         element = (struct qdio_buffer_element *)&buf->buffer->element[0];
1978         offset = 0;
1979         if (card->options.performance_stats)
1980                 card->perf_stats.bufs_rec++;
1981         while ((skb = qeth_core_get_next_skb(card, buf->buffer, &element,
1982                                        &offset, &hdr))) {
1983                 skb->dev = card->dev;
1984                 /* is device UP ? */
1985                 if (!(card->dev->flags & IFF_UP)) {
1986                         dev_kfree_skb_any(skb);
1987                         continue;
1988                 }
1989
1990                 switch (hdr->hdr.l3.id) {
1991                 case QETH_HEADER_TYPE_LAYER3:
1992                         vlan_tag = qeth_l3_rebuild_skb(card, skb, hdr);
1993                         len = skb->len;
1994                         if (vlan_tag)
1995                                 if (card->vlangrp)
1996                                         vlan_hwaccel_rx(skb, card->vlangrp,
1997                                                 vlan_tag);
1998                                 else {
1999                                         dev_kfree_skb_any(skb);
2000                                         continue;
2001                                 }
2002                         else
2003                                 netif_rx(skb);
2004                         break;
2005                 default:
2006                         dev_kfree_skb_any(skb);
2007                         QETH_DBF_TEXT(TRACE, 3, "inbunkno");
2008                         QETH_DBF_HEX(CTRL, 3, hdr, QETH_DBF_CTRL_LEN);
2009                         continue;
2010                 }
2011
2012                 card->dev->last_rx = jiffies;
2013                 card->stats.rx_packets++;
2014                 card->stats.rx_bytes += len;
2015         }
2016 }
2017
2018 static int qeth_l3_verify_vlan_dev(struct net_device *dev,
2019                         struct qeth_card *card)
2020 {
2021         int rc = 0;
2022         struct vlan_group *vg;
2023         int i;
2024
2025         vg = card->vlangrp;
2026         if (!vg)
2027                 return rc;
2028
2029         for (i = 0; i < VLAN_GROUP_ARRAY_LEN; i++) {
2030                 if (vlan_group_get_device(vg, i) == dev) {
2031                         rc = QETH_VLAN_CARD;
2032                         break;
2033                 }
2034         }
2035
2036         if (rc && !(netdev_priv(vlan_dev_info(dev)->real_dev) == (void *)card))
2037                 return 0;
2038
2039         return rc;
2040 }
2041
2042 static int qeth_l3_verify_dev(struct net_device *dev)
2043 {
2044         struct qeth_card *card;
2045         unsigned long flags;
2046         int rc = 0;
2047
2048         read_lock_irqsave(&qeth_core_card_list.rwlock, flags);
2049         list_for_each_entry(card, &qeth_core_card_list.list, list) {
2050                 if (card->dev == dev) {
2051                         rc = QETH_REAL_CARD;
2052                         break;
2053                 }
2054                 rc = qeth_l3_verify_vlan_dev(dev, card);
2055                 if (rc)
2056                         break;
2057         }
2058         read_unlock_irqrestore(&qeth_core_card_list.rwlock, flags);
2059
2060         return rc;
2061 }
2062
2063 static struct qeth_card *qeth_l3_get_card_from_dev(struct net_device *dev)
2064 {
2065         struct qeth_card *card = NULL;
2066         int rc;
2067
2068         rc = qeth_l3_verify_dev(dev);
2069         if (rc == QETH_REAL_CARD)
2070                 card = netdev_priv(dev);
2071         else if (rc == QETH_VLAN_CARD)
2072                 card = netdev_priv(vlan_dev_info(dev)->real_dev);
2073         if (card->options.layer2)
2074                 card = NULL;
2075         QETH_DBF_TEXT_(TRACE, 4, "%d", rc);
2076         return card ;
2077 }
2078
2079 static int qeth_l3_stop_card(struct qeth_card *card, int recovery_mode)
2080 {
2081         int rc = 0;
2082
2083         QETH_DBF_TEXT(SETUP, 2, "stopcard");
2084         QETH_DBF_HEX(SETUP, 2, &card, sizeof(void *));
2085
2086         qeth_set_allowed_threads(card, 0, 1);
2087         if (qeth_wait_for_threads(card, ~QETH_RECOVER_THREAD))
2088                 return -ERESTARTSYS;
2089         if (card->read.state == CH_STATE_UP &&
2090             card->write.state == CH_STATE_UP &&
2091             (card->state == CARD_STATE_UP)) {
2092                 if (recovery_mode)
2093                         qeth_l3_stop(card->dev);
2094                 if (!card->use_hard_stop) {
2095                         rc = qeth_send_stoplan(card);
2096                         if (rc)
2097                                 QETH_DBF_TEXT_(SETUP, 2, "1err%d", rc);
2098                 }
2099                 card->state = CARD_STATE_SOFTSETUP;
2100         }
2101         if (card->state == CARD_STATE_SOFTSETUP) {
2102                 qeth_l3_clear_ip_list(card, !card->use_hard_stop, 1);
2103                 qeth_clear_ipacmd_list(card);
2104                 card->state = CARD_STATE_HARDSETUP;
2105         }
2106         if (card->state == CARD_STATE_HARDSETUP) {
2107                 if (!card->use_hard_stop &&
2108                     (card->info.type != QETH_CARD_TYPE_IQD)) {
2109                         rc = qeth_l3_put_unique_id(card);
2110                         if (rc)
2111                                 QETH_DBF_TEXT_(SETUP, 2, "2err%d", rc);
2112                 }
2113                 qeth_qdio_clear_card(card, 0);
2114                 qeth_clear_qdio_buffers(card);
2115                 qeth_clear_working_pool_list(card);
2116                 card->state = CARD_STATE_DOWN;
2117         }
2118         if (card->state == CARD_STATE_DOWN) {
2119                 qeth_clear_cmd_buffers(&card->read);
2120                 qeth_clear_cmd_buffers(&card->write);
2121         }
2122         card->use_hard_stop = 0;
2123         return rc;
2124 }
2125
2126 static void qeth_l3_set_multicast_list(struct net_device *dev)
2127 {
2128         struct qeth_card *card = netdev_priv(dev);
2129
2130         QETH_DBF_TEXT(TRACE, 3, "setmulti");
2131         qeth_l3_delete_mc_addresses(card);
2132         qeth_l3_add_multicast_ipv4(card);
2133 #ifdef CONFIG_QETH_IPV6
2134         qeth_l3_add_multicast_ipv6(card);
2135 #endif
2136         qeth_l3_set_ip_addr_list(card);
2137         if (!qeth_adp_supported(card, IPA_SETADP_SET_PROMISC_MODE))
2138                 return;
2139         qeth_setadp_promisc_mode(card);
2140 }
2141
2142 static const char *qeth_l3_arp_get_error_cause(int *rc)
2143 {
2144         switch (*rc) {
2145         case QETH_IPA_ARP_RC_FAILED:
2146                 *rc = -EIO;
2147                 return "operation failed";
2148         case QETH_IPA_ARP_RC_NOTSUPP:
2149                 *rc = -EOPNOTSUPP;
2150                 return "operation not supported";
2151         case QETH_IPA_ARP_RC_OUT_OF_RANGE:
2152                 *rc = -EINVAL;
2153                 return "argument out of range";
2154         case QETH_IPA_ARP_RC_Q_NOTSUPP:
2155                 *rc = -EOPNOTSUPP;
2156                 return "query operation not supported";
2157         case QETH_IPA_ARP_RC_Q_NO_DATA:
2158                 *rc = -ENOENT;
2159                 return "no query data available";
2160         default:
2161                 return "unknown error";
2162         }
2163 }
2164
2165 static int qeth_l3_arp_set_no_entries(struct qeth_card *card, int no_entries)
2166 {
2167         int tmp;
2168         int rc;
2169
2170         QETH_DBF_TEXT(TRACE, 3, "arpstnoe");
2171
2172         /*
2173          * currently GuestLAN only supports the ARP assist function
2174          * IPA_CMD_ASS_ARP_QUERY_INFO, but not IPA_CMD_ASS_ARP_SET_NO_ENTRIES;
2175          * thus we say EOPNOTSUPP for this ARP function
2176          */
2177         if (card->info.guestlan)
2178                 return -EOPNOTSUPP;
2179         if (!qeth_is_supported(card, IPA_ARP_PROCESSING)) {
2180                 PRINT_WARN("ARP processing not supported "
2181                            "on %s!\n", QETH_CARD_IFNAME(card));
2182                 return -EOPNOTSUPP;
2183         }
2184         rc = qeth_l3_send_simple_setassparms(card, IPA_ARP_PROCESSING,
2185                                           IPA_CMD_ASS_ARP_SET_NO_ENTRIES,
2186                                           no_entries);
2187         if (rc) {
2188                 tmp = rc;
2189                 PRINT_WARN("Could not set number of ARP entries on %s: "
2190                         "%s (0x%x/%d)\n", QETH_CARD_IFNAME(card),
2191                         qeth_l3_arp_get_error_cause(&rc), tmp, tmp);
2192         }
2193         return rc;
2194 }
2195
2196 static void qeth_l3_copy_arp_entries_stripped(struct qeth_arp_query_info *qinfo,
2197                 struct qeth_arp_query_data *qdata, int entry_size,
2198                 int uentry_size)
2199 {
2200         char *entry_ptr;
2201         char *uentry_ptr;
2202         int i;
2203
2204         entry_ptr = (char *)&qdata->data;
2205         uentry_ptr = (char *)(qinfo->udata + qinfo->udata_offset);
2206         for (i = 0; i < qdata->no_entries; ++i) {
2207                 /* strip off 32 bytes "media specific information" */
2208                 memcpy(uentry_ptr, (entry_ptr + 32), entry_size - 32);
2209                 entry_ptr += entry_size;
2210                 uentry_ptr += uentry_size;
2211         }
2212 }
2213
2214 static int qeth_l3_arp_query_cb(struct qeth_card *card,
2215                 struct qeth_reply *reply, unsigned long data)
2216 {
2217         struct qeth_ipa_cmd *cmd;
2218         struct qeth_arp_query_data *qdata;
2219         struct qeth_arp_query_info *qinfo;
2220         int entry_size;
2221         int uentry_size;
2222         int i;
2223
2224         QETH_DBF_TEXT(TRACE, 4, "arpquecb");
2225
2226         qinfo = (struct qeth_arp_query_info *) reply->param;
2227         cmd = (struct qeth_ipa_cmd *) data;
2228         if (cmd->hdr.return_code) {
2229                 QETH_DBF_TEXT_(TRACE, 4, "qaer1%i", cmd->hdr.return_code);
2230                 return 0;
2231         }
2232         if (cmd->data.setassparms.hdr.return_code) {
2233                 cmd->hdr.return_code = cmd->data.setassparms.hdr.return_code;
2234                 QETH_DBF_TEXT_(TRACE, 4, "qaer2%i", cmd->hdr.return_code);
2235                 return 0;
2236         }
2237         qdata = &cmd->data.setassparms.data.query_arp;
2238         switch (qdata->reply_bits) {
2239         case 5:
2240                 uentry_size = entry_size = sizeof(struct qeth_arp_qi_entry5);
2241                 if (qinfo->mask_bits & QETH_QARP_STRIP_ENTRIES)
2242                         uentry_size = sizeof(struct qeth_arp_qi_entry5_short);
2243                 break;
2244         case 7:
2245                 /* fall through to default */
2246         default:
2247                 /* tr is the same as eth -> entry7 */
2248                 uentry_size = entry_size = sizeof(struct qeth_arp_qi_entry7);
2249                 if (qinfo->mask_bits & QETH_QARP_STRIP_ENTRIES)
2250                         uentry_size = sizeof(struct qeth_arp_qi_entry7_short);
2251                 break;
2252         }
2253         /* check if there is enough room in userspace */
2254         if ((qinfo->udata_len - qinfo->udata_offset) <
2255                         qdata->no_entries * uentry_size){
2256                 QETH_DBF_TEXT_(TRACE, 4, "qaer3%i", -ENOMEM);
2257                 cmd->hdr.return_code = -ENOMEM;
2258                 PRINT_WARN("query ARP user space buffer is too small for "
2259                            "the returned number of ARP entries. "
2260                            "Aborting query!\n");
2261                 goto out_error;
2262         }
2263         QETH_DBF_TEXT_(TRACE, 4, "anore%i",
2264                        cmd->data.setassparms.hdr.number_of_replies);
2265         QETH_DBF_TEXT_(TRACE, 4, "aseqn%i", cmd->data.setassparms.hdr.seq_no);
2266         QETH_DBF_TEXT_(TRACE, 4, "anoen%i", qdata->no_entries);
2267
2268         if (qinfo->mask_bits & QETH_QARP_STRIP_ENTRIES) {
2269                 /* strip off "media specific information" */
2270                 qeth_l3_copy_arp_entries_stripped(qinfo, qdata, entry_size,
2271                                                uentry_size);
2272         } else
2273                 /*copy entries to user buffer*/
2274                 memcpy(qinfo->udata + qinfo->udata_offset,
2275                        (char *)&qdata->data, qdata->no_entries*uentry_size);
2276
2277         qinfo->no_entries += qdata->no_entries;
2278         qinfo->udata_offset += (qdata->no_entries*uentry_size);
2279         /* check if all replies received ... */
2280         if (cmd->data.setassparms.hdr.seq_no <
2281             cmd->data.setassparms.hdr.number_of_replies)
2282                 return 1;
2283         memcpy(qinfo->udata, &qinfo->no_entries, 4);
2284         /* keep STRIP_ENTRIES flag so the user program can distinguish
2285          * stripped entries from normal ones */
2286         if (qinfo->mask_bits & QETH_QARP_STRIP_ENTRIES)
2287                 qdata->reply_bits |= QETH_QARP_STRIP_ENTRIES;
2288         memcpy(qinfo->udata + QETH_QARP_MASK_OFFSET, &qdata->reply_bits, 2);
2289         return 0;
2290 out_error:
2291         i = 0;
2292         memcpy(qinfo->udata, &i, 4);
2293         return 0;
2294 }
2295
2296 static int qeth_l3_send_ipa_arp_cmd(struct qeth_card *card,
2297                 struct qeth_cmd_buffer *iob, int len,
2298                 int (*reply_cb)(struct qeth_card *, struct qeth_reply *,
2299                         unsigned long),
2300                 void *reply_param)
2301 {
2302         QETH_DBF_TEXT(TRACE, 4, "sendarp");
2303
2304         memcpy(iob->data, IPA_PDU_HEADER, IPA_PDU_HEADER_SIZE);
2305         memcpy(QETH_IPA_CMD_DEST_ADDR(iob->data),
2306                &card->token.ulp_connection_r, QETH_MPC_TOKEN_LENGTH);
2307         return qeth_send_control_data(card, IPA_PDU_HEADER_SIZE + len, iob,
2308                                       reply_cb, reply_param);
2309 }
2310
2311 static int qeth_l3_arp_query(struct qeth_card *card, char __user *udata)
2312 {
2313         struct qeth_cmd_buffer *iob;
2314         struct qeth_arp_query_info qinfo = {0, };
2315         int tmp;
2316         int rc;
2317
2318         QETH_DBF_TEXT(TRACE, 3, "arpquery");
2319
2320         if (!qeth_is_supported(card,/*IPA_QUERY_ARP_ADDR_INFO*/
2321                                IPA_ARP_PROCESSING)) {
2322                 PRINT_WARN("ARP processing not supported "
2323                            "on %s!\n", QETH_CARD_IFNAME(card));
2324                 return -EOPNOTSUPP;
2325         }
2326         /* get size of userspace buffer and mask_bits -> 6 bytes */
2327         if (copy_from_user(&qinfo, udata, 6))
2328                 return -EFAULT;
2329         qinfo.udata = kzalloc(qinfo.udata_len, GFP_KERNEL);
2330         if (!qinfo.udata)
2331                 return -ENOMEM;
2332         qinfo.udata_offset = QETH_QARP_ENTRIES_OFFSET;
2333         iob = qeth_l3_get_setassparms_cmd(card, IPA_ARP_PROCESSING,
2334                                        IPA_CMD_ASS_ARP_QUERY_INFO,
2335                                        sizeof(int), QETH_PROT_IPV4);
2336
2337         rc = qeth_l3_send_ipa_arp_cmd(card, iob,
2338                                    QETH_SETASS_BASE_LEN+QETH_ARP_CMD_LEN,
2339                                    qeth_l3_arp_query_cb, (void *)&qinfo);
2340         if (rc) {
2341                 tmp = rc;
2342                 PRINT_WARN("Error while querying ARP cache on %s: %s "
2343                         "(0x%x/%d)\n", QETH_CARD_IFNAME(card),
2344                         qeth_l3_arp_get_error_cause(&rc), tmp, tmp);
2345                 if (copy_to_user(udata, qinfo.udata, 4))
2346                         rc = -EFAULT;
2347         } else {
2348                 if (copy_to_user(udata, qinfo.udata, qinfo.udata_len))
2349                         rc = -EFAULT;
2350         }
2351         kfree(qinfo.udata);
2352         return rc;
2353 }
2354
2355 static int qeth_l3_arp_add_entry(struct qeth_card *card,
2356                                 struct qeth_arp_cache_entry *entry)
2357 {
2358         struct qeth_cmd_buffer *iob;
2359         char buf[16];
2360         int tmp;
2361         int rc;
2362
2363         QETH_DBF_TEXT(TRACE, 3, "arpadent");
2364
2365         /*
2366          * currently GuestLAN only supports the ARP assist function
2367          * IPA_CMD_ASS_ARP_QUERY_INFO, but not IPA_CMD_ASS_ARP_ADD_ENTRY;
2368          * thus we say EOPNOTSUPP for this ARP function
2369          */
2370         if (card->info.guestlan)
2371                 return -EOPNOTSUPP;
2372         if (!qeth_is_supported(card, IPA_ARP_PROCESSING)) {
2373                 PRINT_WARN("ARP processing not supported "
2374                            "on %s!\n", QETH_CARD_IFNAME(card));
2375                 return -EOPNOTSUPP;
2376         }
2377
2378         iob = qeth_l3_get_setassparms_cmd(card, IPA_ARP_PROCESSING,
2379                                        IPA_CMD_ASS_ARP_ADD_ENTRY,
2380                                        sizeof(struct qeth_arp_cache_entry),
2381                                        QETH_PROT_IPV4);
2382         rc = qeth_l3_send_setassparms(card, iob,
2383                                    sizeof(struct qeth_arp_cache_entry),
2384                                    (unsigned long) entry,
2385                                    qeth_l3_default_setassparms_cb, NULL);
2386         if (rc) {
2387                 tmp = rc;
2388                 qeth_l3_ipaddr4_to_string((u8 *)entry->ipaddr, buf);
2389                 PRINT_WARN("Could not add ARP entry for address %s on %s: "
2390                            "%s (0x%x/%d)\n",
2391                            buf, QETH_CARD_IFNAME(card),
2392                            qeth_l3_arp_get_error_cause(&rc), tmp, tmp);
2393         }
2394         return rc;
2395 }
2396
2397 static int qeth_l3_arp_remove_entry(struct qeth_card *card,
2398                                 struct qeth_arp_cache_entry *entry)
2399 {
2400         struct qeth_cmd_buffer *iob;
2401         char buf[16] = {0, };
2402         int tmp;
2403         int rc;
2404
2405         QETH_DBF_TEXT(TRACE, 3, "arprment");
2406
2407         /*
2408          * currently GuestLAN only supports the ARP assist function
2409          * IPA_CMD_ASS_ARP_QUERY_INFO, but not IPA_CMD_ASS_ARP_REMOVE_ENTRY;
2410          * thus we say EOPNOTSUPP for this ARP function
2411          */
2412         if (card->info.guestlan)
2413                 return -EOPNOTSUPP;
2414         if (!qeth_is_supported(card, IPA_ARP_PROCESSING)) {
2415                 PRINT_WARN("ARP processing not supported "
2416                            "on %s!\n", QETH_CARD_IFNAME(card));
2417                 return -EOPNOTSUPP;
2418         }
2419         memcpy(buf, entry, 12);
2420         iob = qeth_l3_get_setassparms_cmd(card, IPA_ARP_PROCESSING,
2421                                        IPA_CMD_ASS_ARP_REMOVE_ENTRY,
2422                                        12,
2423                                        QETH_PROT_IPV4);
2424         rc = qeth_l3_send_setassparms(card, iob,
2425                                    12, (unsigned long)buf,
2426                                    qeth_l3_default_setassparms_cb, NULL);
2427         if (rc) {
2428                 tmp = rc;
2429                 memset(buf, 0, 16);
2430                 qeth_l3_ipaddr4_to_string((u8 *)entry->ipaddr, buf);
2431                 PRINT_WARN("Could not delete ARP entry for address %s on %s: "
2432                            "%s (0x%x/%d)\n",
2433                            buf, QETH_CARD_IFNAME(card),
2434                            qeth_l3_arp_get_error_cause(&rc), tmp, tmp);
2435         }
2436         return rc;
2437 }
2438
2439 static int qeth_l3_arp_flush_cache(struct qeth_card *card)
2440 {
2441         int rc;
2442         int tmp;
2443
2444         QETH_DBF_TEXT(TRACE, 3, "arpflush");
2445
2446         /*
2447          * currently GuestLAN only supports the ARP assist function
2448          * IPA_CMD_ASS_ARP_QUERY_INFO, but not IPA_CMD_ASS_ARP_FLUSH_CACHE;
2449          * thus we say EOPNOTSUPP for this ARP function
2450         */
2451         if (card->info.guestlan || (card->info.type == QETH_CARD_TYPE_IQD))
2452                 return -EOPNOTSUPP;
2453         if (!qeth_is_supported(card, IPA_ARP_PROCESSING)) {
2454                 PRINT_WARN("ARP processing not supported "
2455                            "on %s!\n", QETH_CARD_IFNAME(card));
2456                 return -EOPNOTSUPP;
2457         }
2458         rc = qeth_l3_send_simple_setassparms(card, IPA_ARP_PROCESSING,
2459                                           IPA_CMD_ASS_ARP_FLUSH_CACHE, 0);
2460         if (rc) {
2461                 tmp = rc;
2462                 PRINT_WARN("Could not flush ARP cache on %s: %s (0x%x/%d)\n",
2463                         QETH_CARD_IFNAME(card),
2464                         qeth_l3_arp_get_error_cause(&rc), tmp, tmp);
2465         }
2466         return rc;
2467 }
2468
2469 static int qeth_l3_do_ioctl(struct net_device *dev, struct ifreq *rq, int cmd)
2470 {
2471         struct qeth_card *card = netdev_priv(dev);
2472         struct qeth_arp_cache_entry arp_entry;
2473         struct mii_ioctl_data *mii_data;
2474         int rc = 0;
2475
2476         if (!card)
2477                 return -ENODEV;
2478
2479         if ((card->state != CARD_STATE_UP) &&
2480                 (card->state != CARD_STATE_SOFTSETUP))
2481                 return -ENODEV;
2482
2483         switch (cmd) {
2484         case SIOC_QETH_ARP_SET_NO_ENTRIES:
2485                 if (!capable(CAP_NET_ADMIN)) {
2486                         rc = -EPERM;
2487                         break;
2488                 }
2489                 rc = qeth_l3_arp_set_no_entries(card, rq->ifr_ifru.ifru_ivalue);
2490                 break;
2491         case SIOC_QETH_ARP_QUERY_INFO:
2492                 if (!capable(CAP_NET_ADMIN)) {
2493                         rc = -EPERM;
2494                         break;
2495                 }
2496                 rc = qeth_l3_arp_query(card, rq->ifr_ifru.ifru_data);
2497                 break;
2498         case SIOC_QETH_ARP_ADD_ENTRY:
2499                 if (!capable(CAP_NET_ADMIN)) {
2500                         rc = -EPERM;
2501                         break;
2502                 }
2503                 if (copy_from_user(&arp_entry, rq->ifr_ifru.ifru_data,
2504                                    sizeof(struct qeth_arp_cache_entry)))
2505                         rc = -EFAULT;
2506                 else
2507                         rc = qeth_l3_arp_add_entry(card, &arp_entry);
2508                 break;
2509         case SIOC_QETH_ARP_REMOVE_ENTRY:
2510                 if (!capable(CAP_NET_ADMIN)) {
2511                         rc = -EPERM;
2512                         break;
2513                 }
2514                 if (copy_from_user(&arp_entry, rq->ifr_ifru.ifru_data,
2515                                    sizeof(struct qeth_arp_cache_entry)))
2516                         rc = -EFAULT;
2517                 else
2518                         rc = qeth_l3_arp_remove_entry(card, &arp_entry);
2519                 break;
2520         case SIOC_QETH_ARP_FLUSH_CACHE:
2521                 if (!capable(CAP_NET_ADMIN)) {
2522                         rc = -EPERM;
2523                         break;
2524                 }
2525                 rc = qeth_l3_arp_flush_cache(card);
2526                 break;
2527         case SIOC_QETH_ADP_SET_SNMP_CONTROL:
2528                 rc = qeth_snmp_command(card, rq->ifr_ifru.ifru_data);
2529                 break;
2530         case SIOC_QETH_GET_CARD_TYPE:
2531                 if ((card->info.type == QETH_CARD_TYPE_OSAE) &&
2532                     !card->info.guestlan)
2533                         return 1;
2534                 return 0;
2535                 break;
2536         case SIOCGMIIPHY:
2537                 mii_data = if_mii(rq);
2538                 mii_data->phy_id = 0;
2539                 break;
2540         case SIOCGMIIREG:
2541                 mii_data = if_mii(rq);
2542                 if (mii_data->phy_id != 0)
2543                         rc = -EINVAL;
2544                 else
2545                         mii_data->val_out = qeth_mdio_read(dev,
2546                                                         mii_data->phy_id,
2547                                                         mii_data->reg_num);
2548                 break;
2549         default:
2550                 rc = -EOPNOTSUPP;
2551         }
2552         if (rc)
2553                 QETH_DBF_TEXT_(TRACE, 2, "ioce%d", rc);
2554         return rc;
2555 }
2556
2557 static void qeth_l3_fill_header(struct qeth_card *card, struct qeth_hdr *hdr,
2558                 struct sk_buff *skb, int ipv, int cast_type)
2559 {
2560         QETH_DBF_TEXT(TRACE, 6, "fillhdr");
2561
2562         memset(hdr, 0, sizeof(struct qeth_hdr));
2563         hdr->hdr.l3.id = QETH_HEADER_TYPE_LAYER3;
2564         hdr->hdr.l3.ext_flags = 0;
2565
2566         /*
2567          * before we're going to overwrite this location with next hop ip.
2568          * v6 uses passthrough, v4 sets the tag in the QDIO header.
2569          */
2570         if (card->vlangrp && vlan_tx_tag_present(skb)) {
2571                 if ((ipv == 4) || (card->info.type == QETH_CARD_TYPE_IQD))
2572                         hdr->hdr.l3.ext_flags = QETH_HDR_EXT_VLAN_FRAME;
2573                 else
2574                         hdr->hdr.l3.ext_flags = QETH_HDR_EXT_INCLUDE_VLAN_TAG;
2575                 hdr->hdr.l3.vlan_id = vlan_tx_tag_get(skb);
2576         }
2577
2578         hdr->hdr.l3.length = skb->len - sizeof(struct qeth_hdr);
2579         if (ipv == 4) {
2580                 /* IPv4 */
2581                 hdr->hdr.l3.flags = qeth_l3_get_qeth_hdr_flags4(cast_type);
2582                 memset(hdr->hdr.l3.dest_addr, 0, 12);
2583                 if ((skb->dst) && (skb->dst->neighbour)) {
2584                         *((u32 *) (&hdr->hdr.l3.dest_addr[12])) =
2585                             *((u32 *) skb->dst->neighbour->primary_key);
2586                 } else {
2587                         /* fill in destination address used in ip header */
2588                         *((u32 *) (&hdr->hdr.l3.dest_addr[12])) =
2589                                                         ip_hdr(skb)->daddr;
2590                 }
2591         } else if (ipv == 6) {
2592                 /* IPv6 */
2593                 hdr->hdr.l3.flags = qeth_l3_get_qeth_hdr_flags6(cast_type);
2594                 if (card->info.type == QETH_CARD_TYPE_IQD)
2595                         hdr->hdr.l3.flags &= ~QETH_HDR_PASSTHRU;
2596                 if ((skb->dst) && (skb->dst->neighbour)) {
2597                         memcpy(hdr->hdr.l3.dest_addr,
2598                                skb->dst->neighbour->primary_key, 16);
2599                 } else {
2600                         /* fill in destination address used in ip header */
2601                         memcpy(hdr->hdr.l3.dest_addr,
2602                                &ipv6_hdr(skb)->daddr, 16);
2603                 }
2604         } else {
2605                 /* passthrough */
2606                 if ((skb->dev->type == ARPHRD_IEEE802_TR) &&
2607                         !memcmp(skb->data + sizeof(struct qeth_hdr) +
2608                         sizeof(__u16), skb->dev->broadcast, 6)) {
2609                         hdr->hdr.l3.flags = QETH_CAST_BROADCAST |
2610                                                 QETH_HDR_PASSTHRU;
2611                 } else if (!memcmp(skb->data + sizeof(struct qeth_hdr),
2612                             skb->dev->broadcast, 6)) {
2613                         /* broadcast? */
2614                         hdr->hdr.l3.flags = QETH_CAST_BROADCAST |
2615                                                 QETH_HDR_PASSTHRU;
2616                 } else {
2617                         hdr->hdr.l3.flags = (cast_type == RTN_MULTICAST) ?
2618                                 QETH_CAST_MULTICAST | QETH_HDR_PASSTHRU :
2619                                 QETH_CAST_UNICAST | QETH_HDR_PASSTHRU;
2620                 }
2621         }
2622 }
2623
2624 static int qeth_l3_hard_start_xmit(struct sk_buff *skb, struct net_device *dev)
2625 {
2626         int rc;
2627         u16 *tag;
2628         struct qeth_hdr *hdr = NULL;
2629         int elements_needed = 0;
2630         struct qeth_card *card = netdev_priv(dev);
2631         struct sk_buff *new_skb = NULL;
2632         int ipv = qeth_get_ip_version(skb);
2633         int cast_type = qeth_get_cast_type(card, skb);
2634         struct qeth_qdio_out_q *queue = card->qdio.out_qs
2635                 [qeth_get_priority_queue(card, skb, ipv, cast_type)];
2636         int tx_bytes = skb->len;
2637         enum qeth_large_send_types large_send = QETH_LARGE_SEND_NO;
2638         struct qeth_eddp_context *ctx = NULL;
2639
2640         QETH_DBF_TEXT(TRACE, 6, "l3xmit");
2641
2642         if ((card->info.type == QETH_CARD_TYPE_IQD) &&
2643             (skb->protocol != htons(ETH_P_IPV6)) &&
2644             (skb->protocol != htons(ETH_P_IP)))
2645                         goto tx_drop;
2646
2647         if ((card->state != CARD_STATE_UP) || !card->lan_online) {
2648                 card->stats.tx_carrier_errors++;
2649                 goto tx_drop;
2650         }
2651
2652         if ((cast_type == RTN_BROADCAST) &&
2653             (card->info.broadcast_capable == 0))
2654                 goto tx_drop;
2655
2656         if (card->options.performance_stats) {
2657                 card->perf_stats.outbound_cnt++;
2658                 card->perf_stats.outbound_start_time = qeth_get_micros();
2659         }
2660
2661         /* create a clone with writeable headroom */
2662         new_skb = skb_realloc_headroom(skb, sizeof(struct qeth_hdr_tso) +
2663                                         VLAN_HLEN);
2664         if (!new_skb)
2665                 goto tx_drop;
2666
2667         if (card->info.type == QETH_CARD_TYPE_IQD) {
2668                 skb_pull(new_skb, ETH_HLEN);
2669         } else {
2670                 if (new_skb->protocol == htons(ETH_P_IP)) {
2671                         if (card->dev->type == ARPHRD_IEEE802_TR)
2672                                 skb_pull(new_skb, TR_HLEN);
2673                         else
2674                                 skb_pull(new_skb, ETH_HLEN);
2675                 }
2676
2677                 if (new_skb->protocol == ETH_P_IPV6 && card->vlangrp &&
2678                                 vlan_tx_tag_present(new_skb)) {
2679                         skb_push(new_skb, VLAN_HLEN);
2680                         skb_copy_to_linear_data(new_skb, new_skb->data + 4, 4);
2681                         skb_copy_to_linear_data_offset(new_skb, 4,
2682                                 new_skb->data + 8, 4);
2683                         skb_copy_to_linear_data_offset(new_skb, 8,
2684                                 new_skb->data + 12, 4);
2685                         tag = (u16 *)(new_skb->data + 12);
2686                         *tag = __constant_htons(ETH_P_8021Q);
2687                         *(tag + 1) = htons(vlan_tx_tag_get(new_skb));
2688                         VLAN_TX_SKB_CB(new_skb)->magic = 0;
2689                 }
2690         }
2691
2692         netif_stop_queue(dev);
2693
2694         if (skb_is_gso(new_skb))
2695                 large_send = card->options.large_send;
2696
2697         /* fix hardware limitation: as long as we do not have sbal
2698          * chaining we can not send long frag lists so we temporary
2699          * switch to EDDP
2700          */
2701         if ((large_send == QETH_LARGE_SEND_TSO) &&
2702                 ((skb_shinfo(new_skb)->nr_frags + 2) > 16))
2703                 large_send = QETH_LARGE_SEND_EDDP;
2704
2705         if ((large_send == QETH_LARGE_SEND_TSO) &&
2706             (cast_type == RTN_UNSPEC)) {
2707                 hdr = (struct qeth_hdr *)skb_push(new_skb,
2708                                                 sizeof(struct qeth_hdr_tso));
2709                 memset(hdr, 0, sizeof(struct qeth_hdr_tso));
2710                 qeth_l3_fill_header(card, hdr, new_skb, ipv, cast_type);
2711                 qeth_tso_fill_header(card, hdr, new_skb);
2712                 elements_needed++;
2713         } else {
2714                 hdr = (struct qeth_hdr *)skb_push(new_skb,
2715                                                 sizeof(struct qeth_hdr));
2716                 qeth_l3_fill_header(card, hdr, new_skb, ipv, cast_type);
2717         }
2718
2719         if (large_send == QETH_LARGE_SEND_EDDP) {
2720                 /* new_skb is not owned by a socket so we use skb to get
2721                  * the protocol
2722                  */
2723                 ctx = qeth_eddp_create_context(card, new_skb, hdr,
2724                                                 skb->sk->sk_protocol);
2725                 if (ctx == NULL) {
2726                         PRINT_WARN("could not create eddp context\n");
2727                         goto tx_drop;
2728                 }
2729         } else {
2730                 int elems = qeth_get_elements_no(card, (void *)hdr, new_skb,
2731                                                  elements_needed);
2732                 if (!elems)
2733                         goto tx_drop;
2734                 elements_needed += elems;
2735         }
2736
2737         if ((large_send == QETH_LARGE_SEND_NO) &&
2738             (new_skb->ip_summed == CHECKSUM_PARTIAL))
2739                 qeth_tx_csum(new_skb);
2740
2741         if (card->info.type != QETH_CARD_TYPE_IQD)
2742                 rc = qeth_do_send_packet(card, queue, new_skb, hdr,
2743                                          elements_needed, ctx);
2744         else
2745                 rc = qeth_do_send_packet_fast(card, queue, new_skb, hdr,
2746                                               elements_needed, ctx);
2747
2748         if (!rc) {
2749                 card->stats.tx_packets++;
2750                 card->stats.tx_bytes += tx_bytes;
2751                 if (new_skb != skb)
2752                         dev_kfree_skb_any(skb);
2753                 if (card->options.performance_stats) {
2754                         if (large_send != QETH_LARGE_SEND_NO) {
2755                                 card->perf_stats.large_send_bytes += tx_bytes;
2756                                 card->perf_stats.large_send_cnt++;
2757                         }
2758                         if (skb_shinfo(new_skb)->nr_frags > 0) {
2759                                 card->perf_stats.sg_skbs_sent++;
2760                                 /* nr_frags + skb->data */
2761                                 card->perf_stats.sg_frags_sent +=
2762                                         skb_shinfo(new_skb)->nr_frags + 1;
2763                         }
2764                 }
2765
2766                 if (ctx != NULL) {
2767                         qeth_eddp_put_context(ctx);
2768                         dev_kfree_skb_any(new_skb);
2769                 }
2770         } else {
2771                 if (ctx != NULL)
2772                         qeth_eddp_put_context(ctx);
2773
2774                 if (rc == -EBUSY) {
2775                         if (new_skb != skb)
2776                                 dev_kfree_skb_any(new_skb);
2777                         return NETDEV_TX_BUSY;
2778                 } else
2779                         goto tx_drop;
2780         }
2781
2782         netif_wake_queue(dev);
2783         if (card->options.performance_stats)
2784                 card->perf_stats.outbound_time += qeth_get_micros() -
2785                         card->perf_stats.outbound_start_time;
2786         return rc;
2787
2788 tx_drop:
2789         card->stats.tx_dropped++;
2790         card->stats.tx_errors++;
2791         if ((new_skb != skb) && new_skb)
2792                 dev_kfree_skb_any(new_skb);
2793         dev_kfree_skb_any(skb);
2794         return NETDEV_TX_OK;
2795 }
2796
2797 static int qeth_l3_open(struct net_device *dev)
2798 {
2799         struct qeth_card *card = netdev_priv(dev);
2800
2801         QETH_DBF_TEXT(TRACE, 4, "qethopen");
2802         if (card->state != CARD_STATE_SOFTSETUP)
2803                 return -ENODEV;
2804         card->data.state = CH_STATE_UP;
2805         card->state = CARD_STATE_UP;
2806         card->dev->flags |= IFF_UP;
2807         netif_start_queue(dev);
2808
2809         if (!card->lan_online && netif_carrier_ok(dev))
2810                 netif_carrier_off(dev);
2811         return 0;
2812 }
2813
2814 static int qeth_l3_stop(struct net_device *dev)
2815 {
2816         struct qeth_card *card = netdev_priv(dev);
2817
2818         QETH_DBF_TEXT(TRACE, 4, "qethstop");
2819         netif_tx_disable(dev);
2820         card->dev->flags &= ~IFF_UP;
2821         if (card->state == CARD_STATE_UP)
2822                 card->state = CARD_STATE_SOFTSETUP;
2823         return 0;
2824 }
2825
2826 static u32 qeth_l3_ethtool_get_rx_csum(struct net_device *dev)
2827 {
2828         struct qeth_card *card = netdev_priv(dev);
2829
2830         return (card->options.checksum_type == HW_CHECKSUMMING);
2831 }
2832
2833 static int qeth_l3_ethtool_set_rx_csum(struct net_device *dev, u32 data)
2834 {
2835         struct qeth_card *card = netdev_priv(dev);
2836         enum qeth_card_states old_state;
2837         enum qeth_checksum_types csum_type;
2838
2839         if ((card->state != CARD_STATE_UP) &&
2840             (card->state != CARD_STATE_DOWN))
2841                 return -EPERM;
2842
2843         if (data)
2844                 csum_type = HW_CHECKSUMMING;
2845         else
2846                 csum_type = SW_CHECKSUMMING;
2847
2848         if (card->options.checksum_type != csum_type) {
2849                 old_state = card->state;
2850                 if (card->state == CARD_STATE_UP)
2851                         __qeth_l3_set_offline(card->gdev, 1);
2852                 card->options.checksum_type = csum_type;
2853                 if (old_state == CARD_STATE_UP)
2854                         __qeth_l3_set_online(card->gdev, 1);
2855         }
2856         return 0;
2857 }
2858
2859 static int qeth_l3_ethtool_set_tso(struct net_device *dev, u32 data)
2860 {
2861         struct qeth_card *card = netdev_priv(dev);
2862
2863         if (data) {
2864                 if (card->options.large_send == QETH_LARGE_SEND_NO) {
2865                         if (card->info.type == QETH_CARD_TYPE_IQD)
2866                                 card->options.large_send = QETH_LARGE_SEND_EDDP;
2867                         else
2868                                 card->options.large_send = QETH_LARGE_SEND_TSO;
2869                         dev->features |= NETIF_F_TSO;
2870                 }
2871         } else {
2872                 dev->features &= ~NETIF_F_TSO;
2873                 card->options.large_send = QETH_LARGE_SEND_NO;
2874         }
2875         return 0;
2876 }
2877
2878 static struct ethtool_ops qeth_l3_ethtool_ops = {
2879         .get_link = ethtool_op_get_link,
2880         .get_tx_csum = ethtool_op_get_tx_csum,
2881         .set_tx_csum = ethtool_op_set_tx_hw_csum,
2882         .get_rx_csum = qeth_l3_ethtool_get_rx_csum,
2883         .set_rx_csum = qeth_l3_ethtool_set_rx_csum,
2884         .get_sg      = ethtool_op_get_sg,
2885         .set_sg      = ethtool_op_set_sg,
2886         .get_tso     = ethtool_op_get_tso,
2887         .set_tso     = qeth_l3_ethtool_set_tso,
2888         .get_strings = qeth_core_get_strings,
2889         .get_ethtool_stats = qeth_core_get_ethtool_stats,
2890         .get_stats_count = qeth_core_get_stats_count,
2891         .get_drvinfo = qeth_core_get_drvinfo,
2892 };
2893
2894 /*
2895  * we need NOARP for IPv4 but we want neighbor solicitation for IPv6. Setting
2896  * NOARP on the netdevice is no option because it also turns off neighbor
2897  * solicitation. For IPv4 we install a neighbor_setup function. We don't want
2898  * arp resolution but we want the hard header (packet socket will work
2899  * e.g. tcpdump)
2900  */
2901 static int qeth_l3_neigh_setup_noarp(struct neighbour *n)
2902 {
2903         n->nud_state = NUD_NOARP;
2904         memcpy(n->ha, "FAKELL", 6);
2905         n->output = n->ops->connected_output;
2906         return 0;
2907 }
2908
2909 static int
2910 qeth_l3_neigh_setup(struct net_device *dev, struct neigh_parms *np)
2911 {
2912         if (np->tbl->family == AF_INET)
2913                 np->neigh_setup = qeth_l3_neigh_setup_noarp;
2914
2915         return 0;
2916 }
2917
2918 static int qeth_l3_setup_netdev(struct qeth_card *card)
2919 {
2920         if (card->info.type == QETH_CARD_TYPE_OSAE) {
2921                 if ((card->info.link_type == QETH_LINK_TYPE_LANE_TR) ||
2922                     (card->info.link_type == QETH_LINK_TYPE_HSTR)) {
2923 #ifdef CONFIG_TR
2924                         card->dev = alloc_trdev(0);
2925 #endif
2926                         if (!card->dev)
2927                                 return -ENODEV;
2928                 } else {
2929                         card->dev = alloc_etherdev(0);
2930                         if (!card->dev)
2931                                 return -ENODEV;
2932                         card->dev->neigh_setup = qeth_l3_neigh_setup;
2933
2934                         /*IPv6 address autoconfiguration stuff*/
2935                         qeth_l3_get_unique_id(card);
2936                         if (!(card->info.unique_id & UNIQUE_ID_NOT_BY_CARD))
2937                                 card->dev->dev_id = card->info.unique_id &
2938                                                          0xffff;
2939                 }
2940         } else if (card->info.type == QETH_CARD_TYPE_IQD) {
2941                 card->dev = alloc_netdev(0, "hsi%d", ether_setup);
2942                 if (!card->dev)
2943                         return -ENODEV;
2944                 card->dev->flags |= IFF_NOARP;
2945                 qeth_l3_iqd_read_initial_mac(card);
2946         } else
2947                 return -ENODEV;
2948
2949         card->dev->hard_start_xmit = qeth_l3_hard_start_xmit;
2950         card->dev->priv = card;
2951         card->dev->tx_timeout = &qeth_tx_timeout;
2952         card->dev->watchdog_timeo = QETH_TX_TIMEOUT;
2953         card->dev->open = qeth_l3_open;
2954         card->dev->stop = qeth_l3_stop;
2955         card->dev->do_ioctl = qeth_l3_do_ioctl;
2956         card->dev->get_stats = qeth_get_stats;
2957         card->dev->change_mtu = qeth_change_mtu;
2958         card->dev->set_multicast_list = qeth_l3_set_multicast_list;
2959         card->dev->vlan_rx_register = qeth_l3_vlan_rx_register;
2960         card->dev->vlan_rx_add_vid = qeth_l3_vlan_rx_add_vid;
2961         card->dev->vlan_rx_kill_vid = qeth_l3_vlan_rx_kill_vid;
2962         card->dev->mtu = card->info.initial_mtu;
2963         card->dev->set_mac_address = NULL;
2964         SET_ETHTOOL_OPS(card->dev, &qeth_l3_ethtool_ops);
2965         card->dev->features |=  NETIF_F_HW_VLAN_TX |
2966                                 NETIF_F_HW_VLAN_RX |
2967                                 NETIF_F_HW_VLAN_FILTER;
2968
2969         SET_NETDEV_DEV(card->dev, &card->gdev->dev);
2970         return register_netdev(card->dev);
2971 }
2972
2973 static void qeth_l3_qdio_input_handler(struct ccw_device *ccwdev,
2974                 unsigned int status, unsigned int qdio_err,
2975                 unsigned int siga_err, unsigned int queue, int first_element,
2976                 int count, unsigned long card_ptr)
2977 {
2978         struct net_device *net_dev;
2979         struct qeth_card *card;
2980         struct qeth_qdio_buffer *buffer;
2981         int index;
2982         int i;
2983
2984         QETH_DBF_TEXT(TRACE, 6, "qdinput");
2985         card = (struct qeth_card *) card_ptr;
2986         net_dev = card->dev;
2987         if (card->options.performance_stats) {
2988                 card->perf_stats.inbound_cnt++;
2989                 card->perf_stats.inbound_start_time = qeth_get_micros();
2990         }
2991         if (status & QDIO_STATUS_LOOK_FOR_ERROR) {
2992                 if (status & QDIO_STATUS_ACTIVATE_CHECK_CONDITION) {
2993                         QETH_DBF_TEXT(TRACE, 1, "qdinchk");
2994                         QETH_DBF_TEXT_(TRACE, 1, "%s", CARD_BUS_ID(card));
2995                         QETH_DBF_TEXT_(TRACE, 1, "%04X%04X",
2996                                         first_element, count);
2997                         QETH_DBF_TEXT_(TRACE, 1, "%04X%04X", queue, status);
2998                         qeth_schedule_recovery(card);
2999                         return;
3000                 }
3001         }
3002         for (i = first_element; i < (first_element + count); ++i) {
3003                 index = i % QDIO_MAX_BUFFERS_PER_Q;
3004                 buffer = &card->qdio.in_q->bufs[index];
3005                 if (!((status & QDIO_STATUS_LOOK_FOR_ERROR) &&
3006                       qeth_check_qdio_errors(buffer->buffer,
3007                                              qdio_err, siga_err, "qinerr")))
3008                         qeth_l3_process_inbound_buffer(card, buffer, index);
3009                 /* clear buffer and give back to hardware */
3010                 qeth_put_buffer_pool_entry(card, buffer->pool_entry);
3011                 qeth_queue_input_buffer(card, index);
3012         }
3013         if (card->options.performance_stats)
3014                 card->perf_stats.inbound_time += qeth_get_micros() -
3015                         card->perf_stats.inbound_start_time;
3016 }
3017
3018 static int qeth_l3_probe_device(struct ccwgroup_device *gdev)
3019 {
3020         struct qeth_card *card = dev_get_drvdata(&gdev->dev);
3021
3022         qeth_l3_create_device_attributes(&gdev->dev);
3023         card->options.layer2 = 0;
3024         card->discipline.input_handler = (qdio_handler_t *)
3025                 qeth_l3_qdio_input_handler;
3026         card->discipline.output_handler = (qdio_handler_t *)
3027                 qeth_qdio_output_handler;
3028         card->discipline.recover = qeth_l3_recover;
3029         return 0;
3030 }
3031
3032 static void qeth_l3_remove_device(struct ccwgroup_device *cgdev)
3033 {
3034         struct qeth_card *card = dev_get_drvdata(&cgdev->dev);
3035
3036         wait_event(card->wait_q, qeth_threads_running(card, 0xffffffff) == 0);
3037
3038         if (cgdev->state == CCWGROUP_ONLINE) {
3039                 card->use_hard_stop = 1;
3040                 qeth_l3_set_offline(cgdev);
3041         }
3042
3043         if (card->dev) {
3044                 unregister_netdev(card->dev);
3045                 card->dev = NULL;
3046         }
3047
3048         qeth_l3_remove_device_attributes(&cgdev->dev);
3049         qeth_l3_clear_ip_list(card, 0, 0);
3050         qeth_l3_clear_ipato_list(card);
3051         return;
3052 }
3053
3054 static int __qeth_l3_set_online(struct ccwgroup_device *gdev, int recovery_mode)
3055 {
3056         struct qeth_card *card = dev_get_drvdata(&gdev->dev);
3057         int rc = 0;
3058         enum qeth_card_states recover_flag;
3059
3060         BUG_ON(!card);
3061         QETH_DBF_TEXT(SETUP, 2, "setonlin");
3062         QETH_DBF_HEX(SETUP, 2, &card, sizeof(void *));
3063
3064         qeth_set_allowed_threads(card, QETH_RECOVER_THREAD, 1);
3065         if (qeth_wait_for_threads(card, ~QETH_RECOVER_THREAD)) {
3066                 PRINT_WARN("set_online of card %s interrupted by user!\n",
3067                            CARD_BUS_ID(card));
3068                 return -ERESTARTSYS;
3069         }
3070
3071         recover_flag = card->state;
3072         rc = ccw_device_set_online(CARD_RDEV(card));
3073         if (rc) {
3074                 QETH_DBF_TEXT_(SETUP, 2, "1err%d", rc);
3075                 return -EIO;
3076         }
3077         rc = ccw_device_set_online(CARD_WDEV(card));
3078         if (rc) {
3079                 QETH_DBF_TEXT_(SETUP, 2, "1err%d", rc);
3080                 return -EIO;
3081         }
3082         rc = ccw_device_set_online(CARD_DDEV(card));
3083         if (rc) {
3084                 QETH_DBF_TEXT_(SETUP, 2, "1err%d", rc);
3085                 return -EIO;
3086         }
3087
3088         rc = qeth_core_hardsetup_card(card);
3089         if (rc) {
3090                 QETH_DBF_TEXT_(SETUP, 2, "2err%d", rc);
3091                 goto out_remove;
3092         }
3093
3094         qeth_l3_query_ipassists(card, QETH_PROT_IPV4);
3095
3096         if (!card->dev && qeth_l3_setup_netdev(card))
3097                 goto out_remove;
3098
3099         card->state = CARD_STATE_HARDSETUP;
3100         qeth_print_status_message(card);
3101
3102         /* softsetup */
3103         QETH_DBF_TEXT(SETUP, 2, "softsetp");
3104
3105         rc = qeth_send_startlan(card);
3106         if (rc) {
3107                 QETH_DBF_TEXT_(SETUP, 2, "1err%d", rc);
3108                 if (rc == 0xe080) {
3109                         PRINT_WARN("LAN on card %s if offline! "
3110                                    "Waiting for STARTLAN from card.\n",
3111                                    CARD_BUS_ID(card));
3112                         card->lan_online = 0;
3113                 }
3114                 return rc;
3115         } else
3116                 card->lan_online = 1;
3117         qeth_set_large_send(card, card->options.large_send);
3118
3119         rc = qeth_l3_setadapter_parms(card);
3120         if (rc)
3121                 QETH_DBF_TEXT_(SETUP, 2, "2err%d", rc);
3122         rc = qeth_l3_start_ipassists(card);
3123         if (rc)
3124                 QETH_DBF_TEXT_(SETUP, 2, "3err%d", rc);
3125         rc = qeth_l3_setrouting_v4(card);
3126         if (rc)
3127                 QETH_DBF_TEXT_(SETUP, 2, "4err%d", rc);
3128         rc = qeth_l3_setrouting_v6(card);
3129         if (rc)
3130                 QETH_DBF_TEXT_(SETUP, 2, "5err%d", rc);
3131         netif_tx_disable(card->dev);
3132
3133         rc = qeth_init_qdio_queues(card);
3134         if (rc) {
3135                 QETH_DBF_TEXT_(SETUP, 2, "6err%d", rc);
3136                 goto out_remove;
3137         }
3138         card->state = CARD_STATE_SOFTSETUP;
3139         netif_carrier_on(card->dev);
3140
3141         qeth_set_allowed_threads(card, 0xffffffff, 0);
3142         if ((recover_flag == CARD_STATE_RECOVER) && recovery_mode) {
3143                         qeth_l3_open(card->dev);
3144                         qeth_l3_set_multicast_list(card->dev);
3145         }
3146         /* let user_space know that device is online */
3147         kobject_uevent(&gdev->dev.kobj, KOBJ_CHANGE);
3148         return 0;
3149 out_remove:
3150         card->use_hard_stop = 1;
3151         qeth_l3_stop_card(card, 0);
3152         ccw_device_set_offline(CARD_DDEV(card));
3153         ccw_device_set_offline(CARD_WDEV(card));
3154         ccw_device_set_offline(CARD_RDEV(card));
3155         if (recover_flag == CARD_STATE_RECOVER)
3156                 card->state = CARD_STATE_RECOVER;
3157         else
3158                 card->state = CARD_STATE_DOWN;
3159         return -ENODEV;
3160 }
3161
3162 static int qeth_l3_set_online(struct ccwgroup_device *gdev)
3163 {
3164         return __qeth_l3_set_online(gdev, 0);
3165 }
3166
3167 static int __qeth_l3_set_offline(struct ccwgroup_device *cgdev,
3168                         int recovery_mode)
3169 {
3170         struct qeth_card *card = dev_get_drvdata(&cgdev->dev);
3171         int rc = 0, rc2 = 0, rc3 = 0;
3172         enum qeth_card_states recover_flag;
3173
3174         QETH_DBF_TEXT(SETUP, 3, "setoffl");
3175         QETH_DBF_HEX(SETUP, 3, &card, sizeof(void *));
3176
3177         if (card->dev && netif_carrier_ok(card->dev))
3178                 netif_carrier_off(card->dev);
3179         recover_flag = card->state;
3180         if (qeth_l3_stop_card(card, recovery_mode) == -ERESTARTSYS) {
3181                 PRINT_WARN("Stopping card %s interrupted by user!\n",
3182                            CARD_BUS_ID(card));
3183                 return -ERESTARTSYS;
3184         }
3185         rc  = ccw_device_set_offline(CARD_DDEV(card));
3186         rc2 = ccw_device_set_offline(CARD_WDEV(card));
3187         rc3 = ccw_device_set_offline(CARD_RDEV(card));
3188         if (!rc)
3189                 rc = (rc2) ? rc2 : rc3;
3190         if (rc)
3191                 QETH_DBF_TEXT_(SETUP, 2, "1err%d", rc);
3192         if (recover_flag == CARD_STATE_UP)
3193                 card->state = CARD_STATE_RECOVER;
3194         /* let user_space know that device is offline */
3195         kobject_uevent(&cgdev->dev.kobj, KOBJ_CHANGE);
3196         return 0;
3197 }
3198
3199 static int qeth_l3_set_offline(struct ccwgroup_device *cgdev)
3200 {
3201         return __qeth_l3_set_offline(cgdev, 0);
3202 }
3203
3204 static int qeth_l3_recover(void *ptr)
3205 {
3206         struct qeth_card *card;
3207         int rc = 0;
3208
3209         card = (struct qeth_card *) ptr;
3210         QETH_DBF_TEXT(TRACE, 2, "recover1");
3211         QETH_DBF_HEX(TRACE, 2, &card, sizeof(void *));
3212         if (!qeth_do_run_thread(card, QETH_RECOVER_THREAD))
3213                 return 0;
3214         QETH_DBF_TEXT(TRACE, 2, "recover2");
3215         PRINT_WARN("Recovery of device %s started ...\n",
3216                    CARD_BUS_ID(card));
3217         card->use_hard_stop = 1;
3218         __qeth_l3_set_offline(card->gdev, 1);
3219         rc = __qeth_l3_set_online(card->gdev, 1);
3220         /* don't run another scheduled recovery */
3221         qeth_clear_thread_start_bit(card, QETH_RECOVER_THREAD);
3222         qeth_clear_thread_running_bit(card, QETH_RECOVER_THREAD);
3223         if (!rc)
3224                 PRINT_INFO("Device %s successfully recovered!\n",
3225                            CARD_BUS_ID(card));
3226         else
3227                 PRINT_INFO("Device %s could not be recovered!\n",
3228                            CARD_BUS_ID(card));
3229         return 0;
3230 }
3231
3232 static void qeth_l3_shutdown(struct ccwgroup_device *gdev)
3233 {
3234         struct qeth_card *card = dev_get_drvdata(&gdev->dev);
3235         qeth_l3_clear_ip_list(card, 0, 0);
3236         qeth_qdio_clear_card(card, 0);
3237         qeth_clear_qdio_buffers(card);
3238 }
3239
3240 struct ccwgroup_driver qeth_l3_ccwgroup_driver = {
3241         .probe = qeth_l3_probe_device,
3242         .remove = qeth_l3_remove_device,
3243         .set_online = qeth_l3_set_online,
3244         .set_offline = qeth_l3_set_offline,
3245         .shutdown = qeth_l3_shutdown,
3246 };
3247 EXPORT_SYMBOL_GPL(qeth_l3_ccwgroup_driver);
3248
3249 static int qeth_l3_ip_event(struct notifier_block *this,
3250                             unsigned long event, void *ptr)
3251 {
3252         struct in_ifaddr *ifa = (struct in_ifaddr *)ptr;
3253         struct net_device *dev = (struct net_device *)ifa->ifa_dev->dev;
3254         struct qeth_ipaddr *addr;
3255         struct qeth_card *card;
3256
3257         if (dev_net(dev) != &init_net)
3258                 return NOTIFY_DONE;
3259
3260         QETH_DBF_TEXT(TRACE, 3, "ipevent");
3261         card = qeth_l3_get_card_from_dev(dev);
3262         if (!card)
3263                 return NOTIFY_DONE;
3264
3265         addr = qeth_l3_get_addr_buffer(QETH_PROT_IPV4);
3266         if (addr != NULL) {
3267                 addr->u.a4.addr = ifa->ifa_address;
3268                 addr->u.a4.mask = ifa->ifa_mask;
3269                 addr->type = QETH_IP_TYPE_NORMAL;
3270         } else
3271                 goto out;
3272
3273         switch (event) {
3274         case NETDEV_UP:
3275                 if (!qeth_l3_add_ip(card, addr))
3276                         kfree(addr);
3277                 break;
3278         case NETDEV_DOWN:
3279                 if (!qeth_l3_delete_ip(card, addr))
3280                         kfree(addr);
3281                 break;
3282         default:
3283                 break;
3284         }
3285         qeth_l3_set_ip_addr_list(card);
3286 out:
3287         return NOTIFY_DONE;
3288 }
3289
3290 static struct notifier_block qeth_l3_ip_notifier = {
3291         qeth_l3_ip_event,
3292         NULL,
3293 };
3294
3295 #ifdef CONFIG_QETH_IPV6
3296 /**
3297  * IPv6 event handler
3298  */
3299 static int qeth_l3_ip6_event(struct notifier_block *this,
3300                              unsigned long event, void *ptr)
3301 {
3302         struct inet6_ifaddr *ifa = (struct inet6_ifaddr *)ptr;
3303         struct net_device *dev = (struct net_device *)ifa->idev->dev;
3304         struct qeth_ipaddr *addr;
3305         struct qeth_card *card;
3306
3307         QETH_DBF_TEXT(TRACE, 3, "ip6event");
3308
3309         card = qeth_l3_get_card_from_dev(dev);
3310         if (!card)
3311                 return NOTIFY_DONE;
3312         if (!qeth_is_supported(card, IPA_IPV6))
3313                 return NOTIFY_DONE;
3314
3315         addr = qeth_l3_get_addr_buffer(QETH_PROT_IPV6);
3316         if (addr != NULL) {
3317                 memcpy(&addr->u.a6.addr, &ifa->addr, sizeof(struct in6_addr));
3318                 addr->u.a6.pfxlen = ifa->prefix_len;
3319                 addr->type = QETH_IP_TYPE_NORMAL;
3320         } else
3321                 goto out;
3322
3323         switch (event) {
3324         case NETDEV_UP:
3325                 if (!qeth_l3_add_ip(card, addr))
3326                         kfree(addr);
3327                 break;
3328         case NETDEV_DOWN:
3329                 if (!qeth_l3_delete_ip(card, addr))
3330                         kfree(addr);
3331                 break;
3332         default:
3333                 break;
3334         }
3335         qeth_l3_set_ip_addr_list(card);
3336 out:
3337         return NOTIFY_DONE;
3338 }
3339
3340 static struct notifier_block qeth_l3_ip6_notifier = {
3341         qeth_l3_ip6_event,
3342         NULL,
3343 };
3344 #endif
3345
3346 static int qeth_l3_register_notifiers(void)
3347 {
3348         int rc;
3349
3350         QETH_DBF_TEXT(TRACE, 5, "regnotif");
3351         rc = register_inetaddr_notifier(&qeth_l3_ip_notifier);
3352         if (rc)
3353                 return rc;
3354 #ifdef CONFIG_QETH_IPV6
3355         rc = register_inet6addr_notifier(&qeth_l3_ip6_notifier);
3356         if (rc) {
3357                 unregister_inetaddr_notifier(&qeth_l3_ip_notifier);
3358                 return rc;
3359         }
3360 #else
3361         PRINT_WARN("layer 3 discipline no IPv6 support\n");
3362 #endif
3363         return 0;
3364 }
3365
3366 static void qeth_l3_unregister_notifiers(void)
3367 {
3368
3369         QETH_DBF_TEXT(TRACE, 5, "unregnot");
3370         BUG_ON(unregister_inetaddr_notifier(&qeth_l3_ip_notifier));
3371 #ifdef CONFIG_QETH_IPV6
3372         BUG_ON(unregister_inet6addr_notifier(&qeth_l3_ip6_notifier));
3373 #endif /* QETH_IPV6 */
3374 }
3375
3376 static int __init qeth_l3_init(void)
3377 {
3378         int rc = 0;
3379
3380         PRINT_INFO("register layer 3 discipline\n");
3381         rc = qeth_l3_register_notifiers();
3382         return rc;
3383 }
3384
3385 static void __exit qeth_l3_exit(void)
3386 {
3387         qeth_l3_unregister_notifiers();
3388         PRINT_INFO("unregister layer 3 discipline\n");
3389 }
3390
3391 module_init(qeth_l3_init);
3392 module_exit(qeth_l3_exit);
3393 MODULE_AUTHOR("Frank Blaschka <frank.blaschka@de.ibm.com>");
3394 MODULE_DESCRIPTION("qeth layer 3 discipline");
3395 MODULE_LICENSE("GPL");