drivers/s390/net/qeth_l3_main.c

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