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