drivers/s390/net/qeth_l3_main.c

   1 /*
   2  *  drivers/s390/net/qeth_l3_main.c
   3  *
   4  *    Copyright IBM Corp. 2007, 2009
   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 #define KMSG_COMPONENT "qeth"
  12 #define pr_fmt(fmt) KMSG_COMPONENT ": " fmt
  13
  14 #include <linux/module.h>
  15 #include <linux/moduleparam.h>
  16 #include <linux/string.h>
  17 #include <linux/errno.h>
  18 #include <linux/kernel.h>
  19 #include <linux/etherdevice.h>
  20 #include <linux/mii.h>
  21 #include <linux/ip.h>
  22 #include <linux/ipv6.h>
  23 #include <linux/inetdevice.h>
  24 #include <linux/igmp.h>
  25 #include <linux/slab.h>
  26
  27 #include <net/ip.h>
  28 #include <net/arp.h>
  29 #include <net/ip6_checksum.h>
  30
  31 #include "qeth_l3.h"
  32
  33
  34 static int qeth_l3_set_offline(struct ccwgroup_device *);
  35 static int qeth_l3_recover(void *);
  36 static int qeth_l3_stop(struct net_device *);
  37 static void qeth_l3_set_multicast_list(struct net_device *);
  38 static int qeth_l3_neigh_setup(struct net_device *, struct neigh_parms *);
  39 static int qeth_l3_register_addr_entry(struct qeth_card *,
  40                 struct qeth_ipaddr *);
  41 static int qeth_l3_deregister_addr_entry(struct qeth_card *,
  42                 struct qeth_ipaddr *);
  43 static int __qeth_l3_set_online(struct ccwgroup_device *, int);
  44 static int __qeth_l3_set_offline(struct ccwgroup_device *, int);
  45
  46 static int qeth_l3_isxdigit(char *buf)
  47 {
  48         while (*buf) {
  49                 if (!isxdigit(*buf++))
  50                         return 0;
  51         }
  52         return 1;
  53 }
  54
  55 void qeth_l3_ipaddr4_to_string(const __u8 *addr, char *buf)
  56 {
  57         sprintf(buf, "%i.%i.%i.%i", addr[0], addr[1], addr[2], addr[3]);
  58 }
  59
  60 int qeth_l3_string_to_ipaddr4(const char *buf, __u8 *addr)
  61 {
  62         int count = 0, rc = 0;
  63         int in[4];
  64         char c;
  65
  66         rc = sscanf(buf, "%u.%u.%u.%u%c",
  67                     &in[0], &in[1], &in[2], &in[3], &c);
  68         if (rc != 4 && (rc != 5 || c != '\n'))
  69                 return -EINVAL;
  70         for (count = 0; count < 4; count++) {
  71                 if (in[count] > 255)
  72                         return -EINVAL;
  73                 addr[count] = in[count];
  74         }
  75         return 0;
  76 }
  77
  78 void qeth_l3_ipaddr6_to_string(const __u8 *addr, char *buf)
  79 {
  80         sprintf(buf, "%pI6", addr);
  81 }
  82
  83 int qeth_l3_string_to_ipaddr6(const char *buf, __u8 *addr)
  84 {
  85         const char *end, *end_tmp, *start;
  86         __u16 *in;
  87         char num[5];
  88         int num2, cnt, out, found, save_cnt;
  89         unsigned short in_tmp[8] = {0, };
  90
  91         cnt = out = found = save_cnt = num2 = 0;
  92         end = start = buf;
  93         in = (__u16 *) addr;
  94         memset(in, 0, 16);
  95         while (*end) {
  96                 end = strchr(start, ':');
  97                 if (end == NULL) {
  98                         end = buf + strlen(buf);
  99                         end_tmp = strchr(start, '\n');
 100                         if (end_tmp != NULL)
 101                                 end = end_tmp;
 102                         out = 1;
 103                 }
 104                 if ((end - start)) {
 105                         memset(num, 0, 5);
 106                         if ((end - start) > 4)
 107                                 return -EINVAL;
 108                         memcpy(num, start, end - start);
 109                         if (!qeth_l3_isxdigit(num))
 110                                 return -EINVAL;
 111                         sscanf(start, "%x", &num2);
 112                         if (found)
 113                                 in_tmp[save_cnt++] = num2;
 114                         else
 115                                 in[cnt++] = num2;
 116                         if (out)
 117                                 break;
 118                 } else {
 119                         if (found)
 120                                 return -EINVAL;
 121                         found = 1;
 122                 }
 123                 start = ++end;
 124         }
 125         if (cnt + save_cnt > 8)
 126                 return -EINVAL;
 127         cnt = 7;
 128         while (save_cnt)
 129                 in[cnt--] = in_tmp[--save_cnt];
 130         return 0;
 131 }
 132
 133 void qeth_l3_ipaddr_to_string(enum qeth_prot_versions proto, const __u8 *addr,
 134                                 char *buf)
 135 {
 136         if (proto == QETH_PROT_IPV4)
 137                 qeth_l3_ipaddr4_to_string(addr, buf);
 138         else if (proto == QETH_PROT_IPV6)
 139                 qeth_l3_ipaddr6_to_string(addr, buf);
 140 }
 141
 142 int qeth_l3_string_to_ipaddr(const char *buf, enum qeth_prot_versions proto,
 143                                 __u8 *addr)
 144 {
 145         if (proto == QETH_PROT_IPV4)
 146                 return qeth_l3_string_to_ipaddr4(buf, addr);
 147         else if (proto == QETH_PROT_IPV6)
 148                 return qeth_l3_string_to_ipaddr6(buf, addr);
 149         else
 150                 return -EINVAL;
 151 }
 152
 153 static void qeth_l3_convert_addr_to_bits(u8 *addr, u8 *bits, int len)
 154 {
 155         int i, j;
 156         u8 octet;
 157
 158         for (i = 0; i < len; ++i) {
 159                 octet = addr[i];
 160                 for (j = 7; j >= 0; --j) {
 161                         bits[i*8 + j] = octet & 1;
 162                         octet >>= 1;
 163                 }
 164         }
 165 }
 166
 167 int qeth_l3_is_addr_covered_by_ipato(struct qeth_card *card,
 168                                                 struct qeth_ipaddr *addr)
 169 {
 170         struct qeth_ipato_entry *ipatoe;
 171         u8 addr_bits[128] = {0, };
 172         u8 ipatoe_bits[128] = {0, };
 173         int rc = 0;
 174
 175         if (!card->ipato.enabled)
 176                 return 0;
 177
 178         qeth_l3_convert_addr_to_bits((u8 *) &addr->u, addr_bits,
 179                                   (addr->proto == QETH_PROT_IPV4)? 4:16);
 180         list_for_each_entry(ipatoe, &card->ipato.entries, entry) {
 181                 if (addr->proto != ipatoe->proto)
 182                         continue;
 183                 qeth_l3_convert_addr_to_bits(ipatoe->addr, ipatoe_bits,
 184                                           (ipatoe->proto == QETH_PROT_IPV4) ?
 185                                           4 : 16);
 186                 if (addr->proto == QETH_PROT_IPV4)
 187                         rc = !memcmp(addr_bits, ipatoe_bits,
 188                                      min(32, ipatoe->mask_bits));
 189                 else
 190                         rc = !memcmp(addr_bits, ipatoe_bits,
 191                                      min(128, ipatoe->mask_bits));
 192                 if (rc)
 193                         break;
 194         }
 195         /* invert? */
 196         if ((addr->proto == QETH_PROT_IPV4) && card->ipato.invert4)
 197                 rc = !rc;
 198         else if ((addr->proto == QETH_PROT_IPV6) && card->ipato.invert6)
 199                 rc = !rc;
 200
 201         return rc;
 202 }
 203
 204 /*
 205  * Add IP to be added to todo list. If there is already an "add todo"
 206  * in this list we just incremenent the reference count.
 207  * Returns 0 if we  just incremented reference count.
 208  */
 209 static int __qeth_l3_insert_ip_todo(struct qeth_card *card,
 210                                         struct qeth_ipaddr *addr, int add)
 211 {
 212         struct qeth_ipaddr *tmp, *t;
 213         int found = 0;
 214
 215         if (card->options.sniffer)
 216                 return 0;
 217         list_for_each_entry_safe(tmp, t, card->ip_tbd_list, entry) {
 218                 if ((addr->type == QETH_IP_TYPE_DEL_ALL_MC) &&
 219                     (tmp->type == QETH_IP_TYPE_DEL_ALL_MC))
 220                         return 0;
 221                 if ((tmp->proto        == QETH_PROT_IPV4)     &&
 222                     (addr->proto       == QETH_PROT_IPV4)     &&
 223                     (tmp->type         == addr->type)         &&
 224                     (tmp->is_multicast == addr->is_multicast) &&
 225                     (tmp->u.a4.addr    == addr->u.a4.addr)    &&
 226                     (tmp->u.a4.mask    == addr->u.a4.mask)) {
 227                         found = 1;
 228                         break;
 229                 }
 230                 if ((tmp->proto        == QETH_PROT_IPV6)      &&
 231                     (addr->proto       == QETH_PROT_IPV6)      &&
 232                     (tmp->type         == addr->type)          &&
 233                     (tmp->is_multicast == addr->is_multicast)  &&
 234                     (tmp->u.a6.pfxlen  == addr->u.a6.pfxlen)   &&
 235                     (memcmp(&tmp->u.a6.addr, &addr->u.a6.addr,
 236                             sizeof(struct in6_addr)) == 0)) {
 237                         found = 1;
 238                         break;
 239                 }
 240         }
 241         if (found) {
 242                 if (addr->users != 0)
 243                         tmp->users += addr->users;
 244                 else
 245                         tmp->users += add ? 1 : -1;
 246                 if (tmp->users == 0) {
 247                         list_del(&tmp->entry);
 248                         kfree(tmp);
 249                 }
 250                 return 0;
 251         } else {
 252                 if (addr->type == QETH_IP_TYPE_DEL_ALL_MC)
 253                         list_add(&addr->entry, card->ip_tbd_list);
 254                 else {
 255                         if (addr->users == 0)
 256                                 addr->users += add ? 1 : -1;
 257                         if (add && (addr->type == QETH_IP_TYPE_NORMAL) &&
 258                             qeth_l3_is_addr_covered_by_ipato(card, addr)) {
 259                                 QETH_CARD_TEXT(card, 2, "tkovaddr");
 260                                 addr->set_flags |= QETH_IPA_SETIP_TAKEOVER_FLAG;
 261                         }
 262                         list_add_tail(&addr->entry, card->ip_tbd_list);
 263                 }
 264                 return 1;
 265         }
 266 }
 267
 268 static int qeth_l3_delete_ip(struct qeth_card *card, struct qeth_ipaddr *addr)
 269 {
 270         unsigned long flags;
 271         int rc = 0;
 272
 273         QETH_CARD_TEXT(card, 4, "delip");
 274
 275         if (addr->proto == QETH_PROT_IPV4)
 276                 QETH_CARD_HEX(card, 4, &addr->u.a4.addr, 4);
 277         else {
 278                 QETH_CARD_HEX(card, 4, &addr->u.a6.addr, 8);
 279                 QETH_CARD_HEX(card, 4, ((char *)&addr->u.a6.addr) + 8, 8);
 280         }
 281         spin_lock_irqsave(&card->ip_lock, flags);
 282         rc = __qeth_l3_insert_ip_todo(card, addr, 0);
 283         spin_unlock_irqrestore(&card->ip_lock, flags);
 284         return rc;
 285 }
 286
 287 static int qeth_l3_add_ip(struct qeth_card *card, struct qeth_ipaddr *addr)
 288 {
 289         unsigned long flags;
 290         int rc = 0;
 291
 292         QETH_CARD_TEXT(card, 4, "addip");
 293         if (addr->proto == QETH_PROT_IPV4)
 294                 QETH_CARD_HEX(card, 4, &addr->u.a4.addr, 4);
 295         else {
 296                 QETH_CARD_HEX(card, 4, &addr->u.a6.addr, 8);
 297                 QETH_CARD_HEX(card, 4, ((char *)&addr->u.a6.addr) + 8, 8);
 298         }
 299         spin_lock_irqsave(&card->ip_lock, flags);
 300         rc = __qeth_l3_insert_ip_todo(card, addr, 1);
 301         spin_unlock_irqrestore(&card->ip_lock, flags);
 302         return rc;
 303 }
 304
 305
 306 static struct qeth_ipaddr *qeth_l3_get_addr_buffer(
 307                                 enum qeth_prot_versions prot)
 308 {
 309         struct qeth_ipaddr *addr;
 310
 311         addr = kzalloc(sizeof(struct qeth_ipaddr), GFP_ATOMIC);
 312         if (addr == NULL) {
 313                 return NULL;
 314         }
 315         addr->type = QETH_IP_TYPE_NORMAL;
 316         addr->proto = prot;
 317         return addr;
 318 }
 319
 320 static void qeth_l3_delete_mc_addresses(struct qeth_card *card)
 321 {
 322         struct qeth_ipaddr *iptodo;
 323         unsigned long flags;
 324
 325         QETH_CARD_TEXT(card, 4, "delmc");
 326         iptodo = qeth_l3_get_addr_buffer(QETH_PROT_IPV4);
 327         if (!iptodo) {
 328                 QETH_CARD_TEXT(card, 2, "dmcnomem");
 329                 return;
 330         }
 331         iptodo->type = QETH_IP_TYPE_DEL_ALL_MC;
 332         spin_lock_irqsave(&card->ip_lock, flags);
 333         if (!__qeth_l3_insert_ip_todo(card, iptodo, 0))
 334                 kfree(iptodo);
 335         spin_unlock_irqrestore(&card->ip_lock, flags);
 336 }
 337
 338 /*
 339  * Add/remove address to/from card's ip list, i.e. try to add or remove
 340  * reference to/from an IP address that is already registered on the card.
 341  * Returns:
 342  *      0  address was on card and its reference count has been adjusted,
 343  *         but is still > 0, so nothing has to be done
 344  *         also returns 0 if card was not on card and the todo was to delete
 345  *         the address -> there is also nothing to be done
 346  *      1  address was not on card and the todo is to add it to the card's ip
 347  *         list
 348  *      -1 address was on card and its reference count has been decremented
 349  *         to <= 0 by the todo -> address must be removed from card
 350  */
 351 static int __qeth_l3_ref_ip_on_card(struct qeth_card *card,
 352                 struct qeth_ipaddr *todo, struct qeth_ipaddr **__addr)
 353 {
 354         struct qeth_ipaddr *addr;
 355         int found = 0;
 356
 357         list_for_each_entry(addr, &card->ip_list, entry) {
 358                 if ((addr->proto == QETH_PROT_IPV4) &&
 359                     (todo->proto == QETH_PROT_IPV4) &&
 360                     (addr->type == todo->type) &&
 361                     (addr->u.a4.addr == todo->u.a4.addr) &&
 362                     (addr->u.a4.mask == todo->u.a4.mask)) {
 363                         found = 1;
 364                         break;
 365                 }
 366                 if ((addr->proto == QETH_PROT_IPV6) &&
 367                     (todo->proto == QETH_PROT_IPV6) &&
 368                     (addr->type == todo->type) &&
 369                     (addr->u.a6.pfxlen == todo->u.a6.pfxlen) &&
 370                     (memcmp(&addr->u.a6.addr, &todo->u.a6.addr,
 371                             sizeof(struct in6_addr)) == 0)) {
 372                         found = 1;
 373                         break;
 374                 }
 375         }
 376         if (found) {
 377                 addr->users += todo->users;
 378                 if (addr->users <= 0) {
 379                         *__addr = addr;
 380                         return -1;
 381                 } else {
 382                         /* for VIPA and RXIP limit refcount to 1 */
 383                         if (addr->type != QETH_IP_TYPE_NORMAL)
 384                                 addr->users = 1;
 385                         return 0;
 386                 }
 387         }
 388         if (todo->users > 0) {
 389                 /* for VIPA and RXIP limit refcount to 1 */
 390                 if (todo->type != QETH_IP_TYPE_NORMAL)
 391                         todo->users = 1;
 392                 return 1;
 393         } else
 394                 return 0;
 395 }
 396
 397 static void __qeth_l3_delete_all_mc(struct qeth_card *card,
 398                                         unsigned long *flags)
 399 {
 400         struct list_head fail_list;
 401         struct qeth_ipaddr *addr, *tmp;
 402         int rc;
 403
 404         INIT_LIST_HEAD(&fail_list);
 405 again:
 406         list_for_each_entry_safe(addr, tmp, &card->ip_list, entry) {
 407                 if (addr->is_multicast) {
 408                         list_del(&addr->entry);
 409                         spin_unlock_irqrestore(&card->ip_lock, *flags);
 410                         rc = qeth_l3_deregister_addr_entry(card, addr);
 411                         spin_lock_irqsave(&card->ip_lock, *flags);
 412                         if (!rc || (rc == IPA_RC_MC_ADDR_NOT_FOUND))
 413                                 kfree(addr);
 414                         else
 415                                 list_add_tail(&addr->entry, &fail_list);
 416                         goto again;
 417                 }
 418         }
 419         list_splice(&fail_list, &card->ip_list);
 420 }
 421
 422 static void qeth_l3_set_ip_addr_list(struct qeth_card *card)
 423 {
 424         struct list_head *tbd_list;
 425         struct qeth_ipaddr *todo, *addr;
 426         unsigned long flags;
 427         int rc;
 428
 429         QETH_CARD_TEXT(card, 2, "sdiplist");
 430         QETH_CARD_HEX(card, 2, &card, sizeof(void *));
 431
 432         if ((card->state != CARD_STATE_UP &&
 433              card->state != CARD_STATE_SOFTSETUP) || card->options.sniffer) {
 434                 return;
 435         }
 436
 437         spin_lock_irqsave(&card->ip_lock, flags);
 438         tbd_list = card->ip_tbd_list;
 439         card->ip_tbd_list = kmalloc(sizeof(struct list_head), GFP_ATOMIC);
 440         if (!card->ip_tbd_list) {
 441                 QETH_CARD_TEXT(card, 0, "silnomem");
 442                 card->ip_tbd_list = tbd_list;
 443                 spin_unlock_irqrestore(&card->ip_lock, flags);
 444                 return;
 445         } else
 446                 INIT_LIST_HEAD(card->ip_tbd_list);
 447
 448         while (!list_empty(tbd_list)) {
 449                 todo = list_entry(tbd_list->next, struct qeth_ipaddr, entry);
 450                 list_del(&todo->entry);
 451                 if (todo->type == QETH_IP_TYPE_DEL_ALL_MC) {
 452                         __qeth_l3_delete_all_mc(card, &flags);
 453                         kfree(todo);
 454                         continue;
 455                 }
 456                 rc = __qeth_l3_ref_ip_on_card(card, todo, &addr);
 457                 if (rc == 0) {
 458                         /* nothing to be done; only adjusted refcount */
 459                         kfree(todo);
 460                 } else if (rc == 1) {
 461                         /* new entry to be added to on-card list */
 462                         spin_unlock_irqrestore(&card->ip_lock, flags);
 463                         rc = qeth_l3_register_addr_entry(card, todo);
 464                         spin_lock_irqsave(&card->ip_lock, flags);
 465                         if (!rc || (rc == IPA_RC_LAN_OFFLINE))
 466                                 list_add_tail(&todo->entry, &card->ip_list);
 467                         else
 468                                 kfree(todo);
 469                 } else if (rc == -1) {
 470                         /* on-card entry to be removed */
 471                         list_del_init(&addr->entry);
 472                         spin_unlock_irqrestore(&card->ip_lock, flags);
 473                         rc = qeth_l3_deregister_addr_entry(card, addr);
 474                         spin_lock_irqsave(&card->ip_lock, flags);
 475                         if (!rc || (rc == IPA_RC_IP_ADDRESS_NOT_DEFINED))
 476                                 kfree(addr);
 477                         else
 478                                 list_add_tail(&addr->entry, &card->ip_list);
 479                         kfree(todo);
 480                 }
 481         }
 482         spin_unlock_irqrestore(&card->ip_lock, flags);
 483         kfree(tbd_list);
 484 }
 485
 486 static void qeth_l3_clear_ip_list(struct qeth_card *card, int recover)
 487 {
 488         struct qeth_ipaddr *addr, *tmp;
 489         unsigned long flags;
 490
 491         QETH_CARD_TEXT(card, 4, "clearip");
 492         if (recover && card->options.sniffer)
 493                 return;
 494         spin_lock_irqsave(&card->ip_lock, flags);
 495         /* clear todo list */
 496         list_for_each_entry_safe(addr, tmp, card->ip_tbd_list, entry) {
 497                 list_del(&addr->entry);
 498                 kfree(addr);
 499         }
 500
 501         while (!list_empty(&card->ip_list)) {
 502                 addr = list_entry(card->ip_list.next,
 503                                   struct qeth_ipaddr, entry);
 504                 list_del_init(&addr->entry);
 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_CARD_TEXT(card, 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_CARD_TEXT(card, 4, "setdelip");
 585         QETH_CARD_TEXT_(card, 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_CARD_TEXT(card, 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_CARD_TEXT(card, 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_CARD_TEXT(card, 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_CARD_TEXT(card, 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_CARD_TEXT(card, 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_CARD_TEXT(card, 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_CARD_TEXT(card, 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_CARD_TEXT(card, 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_CARD_TEXT(card, 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_CARD_TEXT(card, 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_CARD_TEXT(card, 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_CARD_TEXT(card, 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_CARD_TEXT(card, 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_CARD_TEXT(card, 2, "setaddr4");
 899                 QETH_CARD_HEX(card, 3, &addr->u.a4.addr, sizeof(int));
 900         } else if (addr->proto == QETH_PROT_IPV6) {
 901                 QETH_CARD_TEXT(card, 2, "setaddr6");
 902                 QETH_CARD_HEX(card, 3, &addr->u.a6.addr, 8);
 903                 QETH_CARD_HEX(card, 3, ((char *)&addr->u.a6.addr) + 8, 8);
 904         } else {
 905                 QETH_CARD_TEXT(card, 2, "setaddr?");
 906                 QETH_CARD_HEX(card, 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_CARD_TEXT(card, 2, "failed");
 916         } while ((--cnt > 0) && rc);
 917         if (rc) {
 918                 QETH_CARD_TEXT(card, 2, "FAILED");
 919                 qeth_l3_ipaddr_to_string(addr->proto, (u8 *)&addr->u, buf);
 920                 dev_warn(&card->gdev->dev,
 921                         "Registering IP address %s failed\n", buf);
 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_CARD_TEXT(card, 2, "deladdr4");
 933                 QETH_CARD_HEX(card, 3, &addr->u.a4.addr, sizeof(int));
 934         } else if (addr->proto == QETH_PROT_IPV6) {
 935                 QETH_CARD_TEXT(card, 2, "deladdr6");
 936                 QETH_CARD_HEX(card, 3, &addr->u.a6.addr, 8);
 937                 QETH_CARD_HEX(card, 3, ((char *)&addr->u.a6.addr) + 8, 8);
 938         } else {
 939                 QETH_CARD_TEXT(card, 2, "deladdr?");
 940                 QETH_CARD_HEX(card, 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_CARD_TEXT(card, 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_CARD_TEXT(card, 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_CARD_TEXT(card, 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                 dev_info(&card->gdev->dev,
1033                         "set adapter parameters not supported.\n");
1034                 QETH_DBF_TEXT(SETUP, 2, " notsupp");
1035                 return 0;
1036         }
1037         rc = qeth_query_setadapterparms(card);
1038         if (rc) {
1039                 QETH_DBF_MESSAGE(2, "%s couldn't set adapter parameters: "
1040                         "0x%x\n", dev_name(&card->gdev->dev), rc);
1041                 return rc;
1042         }
1043         if (qeth_adp_supported(card, IPA_SETADP_ALTER_MAC_ADDRESS)) {
1044                 rc = qeth_setadpparms_change_macaddr(card);
1045                 if (rc)
1046                         dev_warn(&card->gdev->dev, "Reading the adapter MAC"
1047                                 " address failed\n");
1048         }
1049
1050         if ((card->info.link_type == QETH_LINK_TYPE_HSTR) ||
1051             (card->info.link_type == QETH_LINK_TYPE_LANE_TR))
1052                 rc = qeth_l3_setadapter_hstr(card);
1053
1054         return rc;
1055 }
1056
1057 static int qeth_l3_default_setassparms_cb(struct qeth_card *card,
1058                         struct qeth_reply *reply, unsigned long data)
1059 {
1060         struct qeth_ipa_cmd *cmd;
1061
1062         QETH_CARD_TEXT(card, 4, "defadpcb");
1063
1064         cmd = (struct qeth_ipa_cmd *) data;
1065         if (cmd->hdr.return_code == 0) {
1066                 cmd->hdr.return_code = cmd->data.setassparms.hdr.return_code;
1067                 if (cmd->hdr.prot_version == QETH_PROT_IPV4)
1068                         card->options.ipa4.enabled_funcs = cmd->hdr.ipa_enabled;
1069                 if (cmd->hdr.prot_version == QETH_PROT_IPV6)
1070                         card->options.ipa6.enabled_funcs = cmd->hdr.ipa_enabled;
1071         }
1072         if (cmd->data.setassparms.hdr.assist_no == IPA_INBOUND_CHECKSUM &&
1073             cmd->data.setassparms.hdr.command_code == IPA_CMD_ASS_START) {
1074                 card->info.csum_mask = cmd->data.setassparms.data.flags_32bit;
1075                 QETH_CARD_TEXT_(card, 3, "csum:%d", card->info.csum_mask);
1076         }
1077         if (cmd->data.setassparms.hdr.assist_no == IPA_OUTBOUND_CHECKSUM &&
1078             cmd->data.setassparms.hdr.command_code == IPA_CMD_ASS_START) {
1079                 card->info.tx_csum_mask =
1080                         cmd->data.setassparms.data.flags_32bit;
1081                 QETH_CARD_TEXT_(card, 3, "tcsu:%d", card->info.tx_csum_mask);
1082         }
1083
1084         return 0;
1085 }
1086
1087 static struct qeth_cmd_buffer *qeth_l3_get_setassparms_cmd(
1088         struct qeth_card *card, enum qeth_ipa_funcs ipa_func, __u16 cmd_code,
1089         __u16 len, enum qeth_prot_versions prot)
1090 {
1091         struct qeth_cmd_buffer *iob;
1092         struct qeth_ipa_cmd *cmd;
1093
1094         QETH_CARD_TEXT(card, 4, "getasscm");
1095         iob = qeth_get_ipacmd_buffer(card, IPA_CMD_SETASSPARMS, prot);
1096
1097         cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
1098         cmd->data.setassparms.hdr.assist_no = ipa_func;
1099         cmd->data.setassparms.hdr.length = 8 + len;
1100         cmd->data.setassparms.hdr.command_code = cmd_code;
1101         cmd->data.setassparms.hdr.return_code = 0;
1102         cmd->data.setassparms.hdr.seq_no = 0;
1103
1104         return iob;
1105 }
1106
1107 static int qeth_l3_send_setassparms(struct qeth_card *card,
1108         struct qeth_cmd_buffer *iob, __u16 len, long data,
1109         int (*reply_cb)(struct qeth_card *, struct qeth_reply *,
1110                 unsigned long),
1111         void *reply_param)
1112 {
1113         int rc;
1114         struct qeth_ipa_cmd *cmd;
1115
1116         QETH_CARD_TEXT(card, 4, "sendassp");
1117
1118         cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
1119         if (len <= sizeof(__u32))
1120                 cmd->data.setassparms.data.flags_32bit = (__u32) data;
1121         else   /* (len > sizeof(__u32)) */
1122                 memcpy(&cmd->data.setassparms.data, (void *) data, len);
1123
1124         rc = qeth_send_ipa_cmd(card, iob, reply_cb, reply_param);
1125         return rc;
1126 }
1127
1128 #ifdef CONFIG_QETH_IPV6
1129 static int qeth_l3_send_simple_setassparms_ipv6(struct qeth_card *card,
1130                 enum qeth_ipa_funcs ipa_func, __u16 cmd_code)
1131 {
1132         int rc;
1133         struct qeth_cmd_buffer *iob;
1134
1135         QETH_CARD_TEXT(card, 4, "simassp6");
1136         iob = qeth_l3_get_setassparms_cmd(card, ipa_func, cmd_code,
1137                                        0, QETH_PROT_IPV6);
1138         rc = qeth_l3_send_setassparms(card, iob, 0, 0,
1139                                    qeth_l3_default_setassparms_cb, NULL);
1140         return rc;
1141 }
1142 #endif
1143
1144 static int qeth_l3_send_simple_setassparms(struct qeth_card *card,
1145                 enum qeth_ipa_funcs ipa_func, __u16 cmd_code, long data)
1146 {
1147         int rc;
1148         int length = 0;
1149         struct qeth_cmd_buffer *iob;
1150
1151         QETH_CARD_TEXT(card, 4, "simassp4");
1152         if (data)
1153                 length = sizeof(__u32);
1154         iob = qeth_l3_get_setassparms_cmd(card, ipa_func, cmd_code,
1155                                        length, QETH_PROT_IPV4);
1156         rc = qeth_l3_send_setassparms(card, iob, length, data,
1157                                    qeth_l3_default_setassparms_cb, NULL);
1158         return rc;
1159 }
1160
1161 static int qeth_l3_start_ipa_arp_processing(struct qeth_card *card)
1162 {
1163         int rc;
1164
1165         QETH_CARD_TEXT(card, 3, "ipaarp");
1166
1167         if (!qeth_is_supported(card, IPA_ARP_PROCESSING)) {
1168                 dev_info(&card->gdev->dev,
1169                         "ARP processing not supported on %s!\n",
1170                         QETH_CARD_IFNAME(card));
1171                 return 0;
1172         }
1173         rc = qeth_l3_send_simple_setassparms(card, IPA_ARP_PROCESSING,
1174                                         IPA_CMD_ASS_START, 0);
1175         if (rc) {
1176                 dev_warn(&card->gdev->dev,
1177                         "Starting ARP processing support for %s failed\n",
1178                         QETH_CARD_IFNAME(card));
1179         }
1180         return rc;
1181 }
1182
1183 static int qeth_l3_start_ipa_ip_fragmentation(struct qeth_card *card)
1184 {
1185         int rc;
1186
1187         QETH_CARD_TEXT(card, 3, "ipaipfrg");
1188
1189         if (!qeth_is_supported(card, IPA_IP_FRAGMENTATION)) {
1190                 dev_info(&card->gdev->dev,
1191                         "Hardware IP fragmentation not supported on %s\n",
1192                         QETH_CARD_IFNAME(card));
1193                 return  -EOPNOTSUPP;
1194         }
1195
1196         rc = qeth_l3_send_simple_setassparms(card, IPA_IP_FRAGMENTATION,
1197                                           IPA_CMD_ASS_START, 0);
1198         if (rc) {
1199                 dev_warn(&card->gdev->dev,
1200                         "Starting IP fragmentation support for %s failed\n",
1201                         QETH_CARD_IFNAME(card));
1202         } else
1203                 dev_info(&card->gdev->dev,
1204                         "Hardware IP fragmentation enabled \n");
1205         return rc;
1206 }
1207
1208 static int qeth_l3_start_ipa_source_mac(struct qeth_card *card)
1209 {
1210         int rc;
1211
1212         QETH_CARD_TEXT(card, 3, "stsrcmac");
1213
1214         if (!qeth_is_supported(card, IPA_SOURCE_MAC)) {
1215                 dev_info(&card->gdev->dev,
1216                         "Inbound source MAC-address not supported on %s\n",
1217                         QETH_CARD_IFNAME(card));
1218                 return -EOPNOTSUPP;
1219         }
1220
1221         rc = qeth_l3_send_simple_setassparms(card, IPA_SOURCE_MAC,
1222                                           IPA_CMD_ASS_START, 0);
1223         if (rc)
1224                 dev_warn(&card->gdev->dev,
1225                         "Starting source MAC-address support for %s failed\n",
1226                         QETH_CARD_IFNAME(card));
1227         return rc;
1228 }
1229
1230 static int qeth_l3_start_ipa_vlan(struct qeth_card *card)
1231 {
1232         int rc = 0;
1233
1234         QETH_CARD_TEXT(card, 3, "strtvlan");
1235
1236         if (!qeth_is_supported(card, IPA_FULL_VLAN)) {
1237                 dev_info(&card->gdev->dev,
1238                         "VLAN not supported on %s\n", QETH_CARD_IFNAME(card));
1239                 return -EOPNOTSUPP;
1240         }
1241
1242         rc = qeth_l3_send_simple_setassparms(card, IPA_VLAN_PRIO,
1243                                           IPA_CMD_ASS_START, 0);
1244         if (rc) {
1245                 dev_warn(&card->gdev->dev,
1246                         "Starting VLAN support for %s failed\n",
1247                         QETH_CARD_IFNAME(card));
1248         } else {
1249                 dev_info(&card->gdev->dev, "VLAN enabled\n");
1250         }
1251         return rc;
1252 }
1253
1254 static int qeth_l3_start_ipa_multicast(struct qeth_card *card)
1255 {
1256         int rc;
1257
1258         QETH_CARD_TEXT(card, 3, "stmcast");
1259
1260         if (!qeth_is_supported(card, IPA_MULTICASTING)) {
1261                 dev_info(&card->gdev->dev,
1262                         "Multicast not supported on %s\n",
1263                         QETH_CARD_IFNAME(card));
1264                 return -EOPNOTSUPP;
1265         }
1266
1267         rc = qeth_l3_send_simple_setassparms(card, IPA_MULTICASTING,
1268                                           IPA_CMD_ASS_START, 0);
1269         if (rc) {
1270                 dev_warn(&card->gdev->dev,
1271                         "Starting multicast support for %s failed\n",
1272                         QETH_CARD_IFNAME(card));
1273         } else {
1274                 dev_info(&card->gdev->dev, "Multicast enabled\n");
1275                 card->dev->flags |= IFF_MULTICAST;
1276         }
1277         return rc;
1278 }
1279
1280 #ifdef CONFIG_QETH_IPV6
1281 static int qeth_l3_softsetup_ipv6(struct qeth_card *card)
1282 {
1283         int rc;
1284
1285         QETH_CARD_TEXT(card, 3, "softipv6");
1286
1287         if (card->info.type == QETH_CARD_TYPE_IQD)
1288                 goto out;
1289
1290         rc = qeth_query_ipassists(card, QETH_PROT_IPV6);
1291         if (rc) {
1292                 dev_err(&card->gdev->dev,
1293                         "Activating IPv6 support for %s failed\n",
1294                         QETH_CARD_IFNAME(card));
1295                 return rc;
1296         }
1297         rc = qeth_l3_send_simple_setassparms(card, IPA_IPV6,
1298                                           IPA_CMD_ASS_START, 3);
1299         if (rc) {
1300                 dev_err(&card->gdev->dev,
1301                         "Activating IPv6 support for %s failed\n",
1302                         QETH_CARD_IFNAME(card));
1303                 return rc;
1304         }
1305         rc = qeth_l3_send_simple_setassparms_ipv6(card, IPA_IPV6,
1306                                                IPA_CMD_ASS_START);
1307         if (rc) {
1308                 dev_err(&card->gdev->dev,
1309                         "Activating IPv6 support for %s failed\n",
1310                          QETH_CARD_IFNAME(card));
1311                 return rc;
1312         }
1313         rc = qeth_l3_send_simple_setassparms_ipv6(card, IPA_PASSTHRU,
1314                                                IPA_CMD_ASS_START);
1315         if (rc) {
1316                 dev_warn(&card->gdev->dev,
1317                         "Enabling the passthrough mode for %s failed\n",
1318                         QETH_CARD_IFNAME(card));
1319                 return rc;
1320         }
1321 out:
1322         dev_info(&card->gdev->dev, "IPV6 enabled\n");
1323         return 0;
1324 }
1325 #endif
1326
1327 static int qeth_l3_start_ipa_ipv6(struct qeth_card *card)
1328 {
1329         int rc = 0;
1330
1331         QETH_CARD_TEXT(card, 3, "strtipv6");
1332
1333         if (!qeth_is_supported(card, IPA_IPV6)) {
1334                 dev_info(&card->gdev->dev,
1335                         "IPv6 not supported on %s\n", QETH_CARD_IFNAME(card));
1336                 return 0;
1337         }
1338 #ifdef CONFIG_QETH_IPV6
1339         rc = qeth_l3_softsetup_ipv6(card);
1340 #endif
1341         return rc ;
1342 }
1343
1344 static int qeth_l3_start_ipa_broadcast(struct qeth_card *card)
1345 {
1346         int rc;
1347
1348         QETH_CARD_TEXT(card, 3, "stbrdcst");
1349         card->info.broadcast_capable = 0;
1350         if (!qeth_is_supported(card, IPA_FILTERING)) {
1351                 dev_info(&card->gdev->dev,
1352                         "Broadcast not supported on %s\n",
1353                         QETH_CARD_IFNAME(card));
1354                 rc = -EOPNOTSUPP;
1355                 goto out;
1356         }
1357         rc = qeth_l3_send_simple_setassparms(card, IPA_FILTERING,
1358                                           IPA_CMD_ASS_START, 0);
1359         if (rc) {
1360                 dev_warn(&card->gdev->dev, "Enabling broadcast filtering for "
1361                         "%s failed\n", QETH_CARD_IFNAME(card));
1362                 goto out;
1363         }
1364
1365         rc = qeth_l3_send_simple_setassparms(card, IPA_FILTERING,
1366                                           IPA_CMD_ASS_CONFIGURE, 1);
1367         if (rc) {
1368                 dev_warn(&card->gdev->dev,
1369                         "Setting up broadcast filtering for %s failed\n",
1370                         QETH_CARD_IFNAME(card));
1371                 goto out;
1372         }
1373         card->info.broadcast_capable = QETH_BROADCAST_WITH_ECHO;
1374         dev_info(&card->gdev->dev, "Broadcast enabled\n");
1375         rc = qeth_l3_send_simple_setassparms(card, IPA_FILTERING,
1376                                           IPA_CMD_ASS_ENABLE, 1);
1377         if (rc) {
1378                 dev_warn(&card->gdev->dev, "Setting up broadcast echo "
1379                         "filtering for %s failed\n", QETH_CARD_IFNAME(card));
1380                 goto out;
1381         }
1382         card->info.broadcast_capable = QETH_BROADCAST_WITHOUT_ECHO;
1383 out:
1384         if (card->info.broadcast_capable)
1385                 card->dev->flags |= IFF_BROADCAST;
1386         else
1387                 card->dev->flags &= ~IFF_BROADCAST;
1388         return rc;
1389 }
1390
1391 static int qeth_l3_send_checksum_command(struct qeth_card *card)
1392 {
1393         int rc;
1394
1395         rc = qeth_l3_send_simple_setassparms(card, IPA_INBOUND_CHECKSUM,
1396                                           IPA_CMD_ASS_START, 0);
1397         if (rc) {
1398                 dev_warn(&card->gdev->dev, "Starting HW checksumming for %s "
1399                         "failed, using SW checksumming\n",
1400                         QETH_CARD_IFNAME(card));
1401                 return rc;
1402         }
1403         rc = qeth_l3_send_simple_setassparms(card, IPA_INBOUND_CHECKSUM,
1404                                           IPA_CMD_ASS_ENABLE,
1405                                           card->info.csum_mask);
1406         if (rc) {
1407                 dev_warn(&card->gdev->dev, "Enabling HW checksumming for %s "
1408                         "failed, using SW checksumming\n",
1409                         QETH_CARD_IFNAME(card));
1410                 return rc;
1411         }
1412         return 0;
1413 }
1414
1415 int qeth_l3_set_rx_csum(struct qeth_card *card, int on)
1416 {
1417         int rc = 0;
1418
1419         if (on) {
1420                 rc = qeth_l3_send_checksum_command(card);
1421                 if (rc)
1422                         return -EIO;
1423                 dev_info(&card->gdev->dev,
1424                         "HW Checksumming (inbound) enabled\n");
1425         } else {
1426                 rc = qeth_l3_send_simple_setassparms(card,
1427                         IPA_INBOUND_CHECKSUM, IPA_CMD_ASS_STOP, 0);
1428                 if (rc)
1429                         return -EIO;
1430         }
1431
1432         return 0;
1433 }
1434
1435 static int qeth_l3_start_ipa_checksum(struct qeth_card *card)
1436 {
1437         QETH_CARD_TEXT(card, 3, "strtcsum");
1438
1439         if (card->dev->features & NETIF_F_RXCSUM) {
1440                 rtnl_lock();
1441                 /* force set_features call */
1442                 card->dev->features &= ~NETIF_F_RXCSUM;
1443                 netdev_update_features(card->dev);
1444                 rtnl_unlock();
1445         }
1446         return 0;
1447 }
1448
1449 static int qeth_l3_start_ipa_tx_checksum(struct qeth_card *card)
1450 {
1451         int rc = 0;
1452
1453         if (!qeth_is_supported(card, IPA_OUTBOUND_CHECKSUM))
1454                 return rc;
1455         rc = qeth_l3_send_simple_setassparms(card, IPA_OUTBOUND_CHECKSUM,
1456                           IPA_CMD_ASS_START, 0);
1457         if (rc)
1458                 goto err_out;
1459         rc = qeth_l3_send_simple_setassparms(card, IPA_OUTBOUND_CHECKSUM,
1460                           IPA_CMD_ASS_ENABLE, card->info.tx_csum_mask);
1461         if (rc)
1462                 goto err_out;
1463         dev_info(&card->gdev->dev, "HW TX Checksumming enabled\n");
1464         return rc;
1465 err_out:
1466         dev_warn(&card->gdev->dev, "Enabling HW TX checksumming for %s "
1467                 "failed, using SW TX checksumming\n", QETH_CARD_IFNAME(card));
1468         return rc;
1469 }
1470
1471 static int qeth_l3_start_ipa_tso(struct qeth_card *card)
1472 {
1473         int rc;
1474
1475         QETH_CARD_TEXT(card, 3, "sttso");
1476
1477         if (!qeth_is_supported(card, IPA_OUTBOUND_TSO)) {
1478                 dev_info(&card->gdev->dev,
1479                         "Outbound TSO not supported on %s\n",
1480                         QETH_CARD_IFNAME(card));
1481                 rc = -EOPNOTSUPP;
1482         } else {
1483                 rc = qeth_l3_send_simple_setassparms(card, IPA_OUTBOUND_TSO,
1484                                                 IPA_CMD_ASS_START, 0);
1485                 if (rc)
1486                         dev_warn(&card->gdev->dev, "Starting outbound TCP "
1487                                 "segmentation offload for %s failed\n",
1488                                 QETH_CARD_IFNAME(card));
1489                 else
1490                         dev_info(&card->gdev->dev,
1491                                 "Outbound TSO enabled\n");
1492         }
1493         if (rc)
1494                 card->dev->features &= ~NETIF_F_TSO;
1495         return rc;
1496 }
1497
1498 static int qeth_l3_start_ipassists(struct qeth_card *card)
1499 {
1500         QETH_CARD_TEXT(card, 3, "strtipas");
1501
1502         qeth_set_access_ctrl_online(card);      /* go on*/
1503         qeth_l3_start_ipa_arp_processing(card); /* go on*/
1504         qeth_l3_start_ipa_ip_fragmentation(card);       /* go on*/
1505         qeth_l3_start_ipa_source_mac(card);     /* go on*/
1506         qeth_l3_start_ipa_vlan(card);           /* go on*/
1507         qeth_l3_start_ipa_multicast(card);              /* go on*/
1508         qeth_l3_start_ipa_ipv6(card);           /* go on*/
1509         qeth_l3_start_ipa_broadcast(card);              /* go on*/
1510         qeth_l3_start_ipa_checksum(card);               /* go on*/
1511         qeth_l3_start_ipa_tx_checksum(card);
1512         qeth_l3_start_ipa_tso(card);            /* go on*/
1513         return 0;
1514 }
1515
1516 static int qeth_l3_iqd_read_initial_mac_cb(struct qeth_card *card,
1517                 struct qeth_reply *reply, unsigned long data)
1518 {
1519         struct qeth_ipa_cmd *cmd;
1520
1521         cmd = (struct qeth_ipa_cmd *) data;
1522         if (cmd->hdr.return_code == 0)
1523                 memcpy(card->dev->dev_addr,
1524                         cmd->data.create_destroy_addr.unique_id, ETH_ALEN);
1525         else
1526                 random_ether_addr(card->dev->dev_addr);
1527
1528         return 0;
1529 }
1530
1531 static int qeth_l3_iqd_read_initial_mac(struct qeth_card *card)
1532 {
1533         int rc = 0;
1534         struct qeth_cmd_buffer *iob;
1535         struct qeth_ipa_cmd *cmd;
1536
1537         QETH_DBF_TEXT(SETUP, 2, "hsrmac");
1538
1539         iob = qeth_get_ipacmd_buffer(card, IPA_CMD_CREATE_ADDR,
1540                                      QETH_PROT_IPV6);
1541         cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
1542         *((__u16 *) &cmd->data.create_destroy_addr.unique_id[6]) =
1543                         card->info.unique_id;
1544
1545         rc = qeth_send_ipa_cmd(card, iob, qeth_l3_iqd_read_initial_mac_cb,
1546                                 NULL);
1547         return rc;
1548 }
1549
1550 static int qeth_l3_get_unique_id_cb(struct qeth_card *card,
1551                 struct qeth_reply *reply, unsigned long data)
1552 {
1553         struct qeth_ipa_cmd *cmd;
1554
1555         cmd = (struct qeth_ipa_cmd *) data;
1556         if (cmd->hdr.return_code == 0)
1557                 card->info.unique_id = *((__u16 *)
1558                                 &cmd->data.create_destroy_addr.unique_id[6]);
1559         else {
1560                 card->info.unique_id =  UNIQUE_ID_IF_CREATE_ADDR_FAILED |
1561                                         UNIQUE_ID_NOT_BY_CARD;
1562                 dev_warn(&card->gdev->dev, "The network adapter failed to "
1563                         "generate a unique ID\n");
1564         }
1565         return 0;
1566 }
1567
1568 static int qeth_l3_get_unique_id(struct qeth_card *card)
1569 {
1570         int rc = 0;
1571         struct qeth_cmd_buffer *iob;
1572         struct qeth_ipa_cmd *cmd;
1573
1574         QETH_DBF_TEXT(SETUP, 2, "guniqeid");
1575
1576         if (!qeth_is_supported(card, IPA_IPV6)) {
1577                 card->info.unique_id =  UNIQUE_ID_IF_CREATE_ADDR_FAILED |
1578                                         UNIQUE_ID_NOT_BY_CARD;
1579                 return 0;
1580         }
1581
1582         iob = qeth_get_ipacmd_buffer(card, IPA_CMD_CREATE_ADDR,
1583                                      QETH_PROT_IPV6);
1584         cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
1585         *((__u16 *) &cmd->data.create_destroy_addr.unique_id[6]) =
1586                         card->info.unique_id;
1587
1588         rc = qeth_send_ipa_cmd(card, iob, qeth_l3_get_unique_id_cb, NULL);
1589         return rc;
1590 }
1591
1592 static int
1593 qeth_diags_trace_cb(struct qeth_card *card, struct qeth_reply *reply,
1594                             unsigned long data)
1595 {
1596         struct qeth_ipa_cmd        *cmd;
1597         __u16 rc;
1598
1599         QETH_DBF_TEXT(SETUP, 2, "diastrcb");
1600
1601         cmd = (struct qeth_ipa_cmd *)data;
1602         rc = cmd->hdr.return_code;
1603         if (rc)
1604                 QETH_CARD_TEXT_(card, 2, "dxter%x", rc);
1605         switch (cmd->data.diagass.action) {
1606         case QETH_DIAGS_CMD_TRACE_QUERY:
1607                 break;
1608         case QETH_DIAGS_CMD_TRACE_DISABLE:
1609                 switch (rc) {
1610                 case 0:
1611                 case IPA_RC_INVALID_SUBCMD:
1612                         card->info.promisc_mode = SET_PROMISC_MODE_OFF;
1613                         dev_info(&card->gdev->dev, "The HiperSockets network "
1614                                 "traffic analyzer is deactivated\n");
1615                         break;
1616                 default:
1617                         break;
1618                 }
1619                 break;
1620         case QETH_DIAGS_CMD_TRACE_ENABLE:
1621                 switch (rc) {
1622                 case 0:
1623                         card->info.promisc_mode = SET_PROMISC_MODE_ON;
1624                         dev_info(&card->gdev->dev, "The HiperSockets network "
1625                                 "traffic analyzer is activated\n");
1626                         break;
1627                 case IPA_RC_HARDWARE_AUTH_ERROR:
1628                         dev_warn(&card->gdev->dev, "The device is not "
1629                                 "authorized to run as a HiperSockets network "
1630                                 "traffic analyzer\n");
1631                         break;
1632                 case IPA_RC_TRACE_ALREADY_ACTIVE:
1633                         dev_warn(&card->gdev->dev, "A HiperSockets "
1634                                 "network traffic analyzer is already "
1635                                 "active in the HiperSockets LAN\n");
1636                         break;
1637                 default:
1638                         break;
1639                 }
1640                 break;
1641         default:
1642                 QETH_DBF_MESSAGE(2, "Unknown sniffer action (0x%04x) on %s\n",
1643                         cmd->data.diagass.action, QETH_CARD_IFNAME(card));
1644         }
1645
1646         return 0;
1647 }
1648
1649 static int
1650 qeth_diags_trace(struct qeth_card *card, enum qeth_diags_trace_cmds diags_cmd)
1651 {
1652         struct qeth_cmd_buffer *iob;
1653         struct qeth_ipa_cmd    *cmd;
1654
1655         QETH_DBF_TEXT(SETUP, 2, "diagtrac");
1656
1657         iob = qeth_get_ipacmd_buffer(card, IPA_CMD_SET_DIAG_ASS, 0);
1658         cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
1659         cmd->data.diagass.subcmd_len = 16;
1660         cmd->data.diagass.subcmd = QETH_DIAGS_CMD_TRACE;
1661         cmd->data.diagass.type = QETH_DIAGS_TYPE_HIPERSOCKET;
1662         cmd->data.diagass.action = diags_cmd;
1663         return qeth_send_ipa_cmd(card, iob, qeth_diags_trace_cb, NULL);
1664 }
1665
1666 static void qeth_l3_get_mac_for_ipm(__u32 ipm, char *mac,
1667                                 struct net_device *dev)
1668 {
1669         if (dev->type == ARPHRD_IEEE802_TR)
1670                 ip_tr_mc_map(ipm, mac);
1671         else
1672                 ip_eth_mc_map(ipm, mac);
1673 }
1674
1675 static void qeth_l3_add_mc(struct qeth_card *card, struct in_device *in4_dev)
1676 {
1677         struct qeth_ipaddr *ipm;
1678         struct ip_mc_list *im4;
1679         char buf[MAX_ADDR_LEN];
1680
1681         QETH_CARD_TEXT(card, 4, "addmc");
1682         for (im4 = rcu_dereference(in4_dev->mc_list); im4 != NULL;
1683              im4 = rcu_dereference(im4->next_rcu)) {
1684                 qeth_l3_get_mac_for_ipm(im4->multiaddr, buf, in4_dev->dev);
1685                 ipm = qeth_l3_get_addr_buffer(QETH_PROT_IPV4);
1686                 if (!ipm)
1687                         continue;
1688                 ipm->u.a4.addr = im4->multiaddr;
1689                 memcpy(ipm->mac, buf, OSA_ADDR_LEN);
1690                 ipm->is_multicast = 1;
1691                 if (!qeth_l3_add_ip(card, ipm))
1692                         kfree(ipm);
1693         }
1694 }
1695
1696 static void qeth_l3_add_vlan_mc(struct qeth_card *card)
1697 {
1698         struct in_device *in_dev;
1699         struct vlan_group *vg;
1700         int i;
1701
1702         QETH_CARD_TEXT(card, 4, "addmcvl");
1703         if (!qeth_is_supported(card, IPA_FULL_VLAN) || (card->vlangrp == NULL))
1704                 return;
1705
1706         vg = card->vlangrp;
1707         for (i = 0; i < VLAN_N_VID; i++) {
1708                 struct net_device *netdev = vlan_group_get_device(vg, i);
1709                 if (netdev == NULL ||
1710                     !(netdev->flags & IFF_UP))
1711                         continue;
1712                 in_dev = in_dev_get(netdev);
1713                 if (!in_dev)
1714                         continue;
1715                 rcu_read_lock();
1716                 qeth_l3_add_mc(card, in_dev);
1717                 rcu_read_unlock();
1718                 in_dev_put(in_dev);
1719         }
1720 }
1721
1722 static void qeth_l3_add_multicast_ipv4(struct qeth_card *card)
1723 {
1724         struct in_device *in4_dev;
1725
1726         QETH_CARD_TEXT(card, 4, "chkmcv4");
1727         in4_dev = in_dev_get(card->dev);
1728         if (in4_dev == NULL)
1729                 return;
1730         rcu_read_lock();
1731         qeth_l3_add_mc(card, in4_dev);
1732         qeth_l3_add_vlan_mc(card);
1733         rcu_read_unlock();
1734         in_dev_put(in4_dev);
1735 }
1736
1737 #ifdef CONFIG_QETH_IPV6
1738 static void qeth_l3_add_mc6(struct qeth_card *card, struct inet6_dev *in6_dev)
1739 {
1740         struct qeth_ipaddr *ipm;
1741         struct ifmcaddr6 *im6;
1742         char buf[MAX_ADDR_LEN];
1743
1744         QETH_CARD_TEXT(card, 4, "addmc6");
1745         for (im6 = in6_dev->mc_list; im6 != NULL; im6 = im6->next) {
1746                 ndisc_mc_map(&im6->mca_addr, buf, in6_dev->dev, 0);
1747                 ipm = qeth_l3_get_addr_buffer(QETH_PROT_IPV6);
1748                 if (!ipm)
1749                         continue;
1750                 ipm->is_multicast = 1;
1751                 memcpy(ipm->mac, buf, OSA_ADDR_LEN);
1752                 memcpy(&ipm->u.a6.addr, &im6->mca_addr.s6_addr,
1753                        sizeof(struct in6_addr));
1754                 if (!qeth_l3_add_ip(card, ipm))
1755                         kfree(ipm);
1756         }
1757 }
1758
1759 static void qeth_l3_add_vlan_mc6(struct qeth_card *card)
1760 {
1761         struct inet6_dev *in_dev;
1762         struct vlan_group *vg;
1763         int i;
1764
1765         QETH_CARD_TEXT(card, 4, "admc6vl");
1766         if (!qeth_is_supported(card, IPA_FULL_VLAN) || (card->vlangrp == NULL))
1767                 return;
1768
1769         vg = card->vlangrp;
1770         for (i = 0; i < VLAN_N_VID; i++) {
1771                 struct net_device *netdev = vlan_group_get_device(vg, i);
1772                 if (netdev == NULL ||
1773                     !(netdev->flags & IFF_UP))
1774                         continue;
1775                 in_dev = in6_dev_get(netdev);
1776                 if (!in_dev)
1777                         continue;
1778                 read_lock_bh(&in_dev->lock);
1779                 qeth_l3_add_mc6(card, in_dev);
1780                 read_unlock_bh(&in_dev->lock);
1781                 in6_dev_put(in_dev);
1782         }
1783 }
1784
1785 static void qeth_l3_add_multicast_ipv6(struct qeth_card *card)
1786 {
1787         struct inet6_dev *in6_dev;
1788
1789         QETH_CARD_TEXT(card, 4, "chkmcv6");
1790         if (!qeth_is_supported(card, IPA_IPV6))
1791                 return ;
1792         in6_dev = in6_dev_get(card->dev);
1793         if (in6_dev == NULL)
1794                 return;
1795         read_lock_bh(&in6_dev->lock);
1796         qeth_l3_add_mc6(card, in6_dev);
1797         qeth_l3_add_vlan_mc6(card);
1798         read_unlock_bh(&in6_dev->lock);
1799         in6_dev_put(in6_dev);
1800 }
1801 #endif /* CONFIG_QETH_IPV6 */
1802
1803 static void qeth_l3_free_vlan_addresses4(struct qeth_card *card,
1804                         unsigned short vid)
1805 {
1806         struct in_device *in_dev;
1807         struct in_ifaddr *ifa;
1808         struct qeth_ipaddr *addr;
1809
1810         QETH_CARD_TEXT(card, 4, "frvaddr4");
1811
1812         in_dev = in_dev_get(vlan_group_get_device(card->vlangrp, vid));
1813         if (!in_dev)
1814                 return;
1815         for (ifa = in_dev->ifa_list; ifa; ifa = ifa->ifa_next) {
1816                 addr = qeth_l3_get_addr_buffer(QETH_PROT_IPV4);
1817                 if (addr) {
1818                         addr->u.a4.addr = ifa->ifa_address;
1819                         addr->u.a4.mask = ifa->ifa_mask;
1820                         addr->type = QETH_IP_TYPE_NORMAL;
1821                         if (!qeth_l3_delete_ip(card, addr))
1822                                 kfree(addr);
1823                 }
1824         }
1825         in_dev_put(in_dev);
1826 }
1827
1828 static void qeth_l3_free_vlan_addresses6(struct qeth_card *card,
1829                         unsigned short vid)
1830 {
1831 #ifdef CONFIG_QETH_IPV6
1832         struct inet6_dev *in6_dev;
1833         struct inet6_ifaddr *ifa;
1834         struct qeth_ipaddr *addr;
1835
1836         QETH_CARD_TEXT(card, 4, "frvaddr6");
1837
1838         in6_dev = in6_dev_get(vlan_group_get_device(card->vlangrp, vid));
1839         if (!in6_dev)
1840                 return;
1841         list_for_each_entry(ifa, &in6_dev->addr_list, if_list) {
1842                 addr = qeth_l3_get_addr_buffer(QETH_PROT_IPV6);
1843                 if (addr) {
1844                         memcpy(&addr->u.a6.addr, &ifa->addr,
1845                                sizeof(struct in6_addr));
1846                         addr->u.a6.pfxlen = ifa->prefix_len;
1847                         addr->type = QETH_IP_TYPE_NORMAL;
1848                         if (!qeth_l3_delete_ip(card, addr))
1849                                 kfree(addr);
1850                 }
1851         }
1852         in6_dev_put(in6_dev);
1853 #endif /* CONFIG_QETH_IPV6 */
1854 }
1855
1856 static void qeth_l3_free_vlan_addresses(struct qeth_card *card,
1857                         unsigned short vid)
1858 {
1859         if (!card->vlangrp)
1860                 return;
1861         qeth_l3_free_vlan_addresses4(card, vid);
1862         qeth_l3_free_vlan_addresses6(card, vid);
1863 }
1864
1865 static void qeth_l3_vlan_rx_register(struct net_device *dev,
1866                         struct vlan_group *grp)
1867 {
1868         struct qeth_card *card = dev->ml_priv;
1869         unsigned long flags;
1870
1871         QETH_CARD_TEXT(card, 4, "vlanreg");
1872         spin_lock_irqsave(&card->vlanlock, flags);
1873         card->vlangrp = grp;
1874         spin_unlock_irqrestore(&card->vlanlock, flags);
1875 }
1876
1877 static void qeth_l3_vlan_rx_add_vid(struct net_device *dev, unsigned short vid)
1878 {
1879         return;
1880 }
1881
1882 static void qeth_l3_vlan_rx_kill_vid(struct net_device *dev, unsigned short vid)
1883 {
1884         struct qeth_card *card = dev->ml_priv;
1885         unsigned long flags;
1886
1887         QETH_CARD_TEXT_(card, 4, "kid:%d", vid);
1888         if (qeth_wait_for_threads(card, QETH_RECOVER_THREAD)) {
1889                 QETH_CARD_TEXT(card, 3, "kidREC");
1890                 return;
1891         }
1892         spin_lock_irqsave(&card->vlanlock, flags);
1893         /* unregister IP addresses of vlan device */
1894         qeth_l3_free_vlan_addresses(card, vid);
1895         vlan_group_set_device(card->vlangrp, vid, NULL);
1896         spin_unlock_irqrestore(&card->vlanlock, flags);
1897         qeth_l3_set_multicast_list(card->dev);
1898 }
1899
1900 static inline int qeth_l3_rebuild_skb(struct qeth_card *card,
1901                         struct sk_buff *skb, struct qeth_hdr *hdr,
1902                         unsigned short *vlan_id)
1903 {
1904         __be16 prot;
1905         struct iphdr *ip_hdr;
1906         unsigned char tg_addr[MAX_ADDR_LEN];
1907         int is_vlan = 0;
1908
1909         if (!(hdr->hdr.l3.flags & QETH_HDR_PASSTHRU)) {
1910                 prot = htons((hdr->hdr.l3.flags & QETH_HDR_IPV6)? ETH_P_IPV6 :
1911                               ETH_P_IP);
1912                 switch (hdr->hdr.l3.flags & QETH_HDR_CAST_MASK) {
1913                 case QETH_CAST_MULTICAST:
1914                         switch (prot) {
1915 #ifdef CONFIG_QETH_IPV6
1916                         case __constant_htons(ETH_P_IPV6):
1917                                 ndisc_mc_map((struct in6_addr *)
1918                                      skb->data + 24,
1919                                      tg_addr, card->dev, 0);
1920                                 break;
1921 #endif
1922                         case __constant_htons(ETH_P_IP):
1923                                 ip_hdr = (struct iphdr *)skb->data;
1924                                 (card->dev->type == ARPHRD_IEEE802_TR) ?
1925                                 ip_tr_mc_map(ip_hdr->daddr, tg_addr):
1926                                 ip_eth_mc_map(ip_hdr->daddr, tg_addr);
1927                                 break;
1928                         default:
1929                                 memcpy(tg_addr, card->dev->broadcast,
1930                                         card->dev->addr_len);
1931                         }
1932                         card->stats.multicast++;
1933                         skb->pkt_type = PACKET_MULTICAST;
1934                         break;
1935                 case QETH_CAST_BROADCAST:
1936                         memcpy(tg_addr, card->dev->broadcast,
1937                                 card->dev->addr_len);
1938                         card->stats.multicast++;
1939                         skb->pkt_type = PACKET_BROADCAST;
1940                         break;
1941                 case QETH_CAST_UNICAST:
1942                 case QETH_CAST_ANYCAST:
1943                 case QETH_CAST_NOCAST:
1944                 default:
1945                         if (card->options.sniffer)
1946                                 skb->pkt_type = PACKET_OTHERHOST;
1947                         else
1948                                 skb->pkt_type = PACKET_HOST;
1949                         memcpy(tg_addr, card->dev->dev_addr,
1950                                 card->dev->addr_len);
1951                 }
1952                 if (hdr->hdr.l3.ext_flags & QETH_HDR_EXT_SRC_MAC_ADDR)
1953                         card->dev->header_ops->create(skb, card->dev, prot,
1954                                 tg_addr, &hdr->hdr.l3.dest_addr[2],
1955                                 card->dev->addr_len);
1956                 else
1957                         card->dev->header_ops->create(skb, card->dev, prot,
1958                                 tg_addr, "FAKELL", card->dev->addr_len);
1959         }
1960
1961 #ifdef CONFIG_TR
1962         if (card->dev->type == ARPHRD_IEEE802_TR)
1963                 skb->protocol = tr_type_trans(skb, card->dev);
1964         else
1965 #endif
1966                 skb->protocol = eth_type_trans(skb, card->dev);
1967
1968         if (hdr->hdr.l3.ext_flags &
1969             (QETH_HDR_EXT_VLAN_FRAME | QETH_HDR_EXT_INCLUDE_VLAN_TAG)) {
1970                 *vlan_id = (hdr->hdr.l3.ext_flags & QETH_HDR_EXT_VLAN_FRAME) ?
1971                  hdr->hdr.l3.vlan_id : *((u16 *)&hdr->hdr.l3.dest_addr[12]);
1972                 is_vlan = 1;
1973         }
1974
1975         if (card->dev->features & NETIF_F_RXCSUM) {
1976                 if ((hdr->hdr.l3.ext_flags &
1977                     (QETH_HDR_EXT_CSUM_HDR_REQ |
1978                      QETH_HDR_EXT_CSUM_TRANSP_REQ)) ==
1979                     (QETH_HDR_EXT_CSUM_HDR_REQ |
1980                      QETH_HDR_EXT_CSUM_TRANSP_REQ))
1981                         skb->ip_summed = CHECKSUM_UNNECESSARY;
1982                 else
1983                         skb->ip_summed = CHECKSUM_NONE;
1984         } else
1985                 skb->ip_summed = CHECKSUM_NONE;
1986
1987         return is_vlan;
1988 }
1989
1990 static int qeth_l3_process_inbound_buffer(struct qeth_card *card,
1991                                 int budget, int *done)
1992 {
1993         int work_done = 0;
1994         struct sk_buff *skb;
1995         struct qeth_hdr *hdr;
1996         __u16 vlan_tag = 0;
1997         int is_vlan;
1998         unsigned int len;
1999
2000         *done = 0;
2001         BUG_ON(!budget);
2002         while (budget) {
2003                 skb = qeth_core_get_next_skb(card,
2004                         card->qdio.in_q->bufs[card->rx.b_index].buffer,
2005                         &card->rx.b_element, &card->rx.e_offset, &hdr);
2006                 if (!skb) {
2007                         *done = 1;
2008                         break;
2009                 }
2010                 skb->dev = card->dev;
2011                 switch (hdr->hdr.l3.id) {
2012                 case QETH_HEADER_TYPE_LAYER3:
2013                         is_vlan = qeth_l3_rebuild_skb(card, skb, hdr,
2014                                                       &vlan_tag);
2015                         len = skb->len;
2016                         if (is_vlan && !card->options.sniffer)
2017                                 vlan_gro_receive(&card->napi, card->vlangrp,
2018                                         vlan_tag, skb);
2019                         else
2020                                 napi_gro_receive(&card->napi, skb);
2021                         break;
2022                 case QETH_HEADER_TYPE_LAYER2: /* for HiperSockets sniffer */
2023                         skb->pkt_type = PACKET_HOST;
2024                         skb->protocol = eth_type_trans(skb, skb->dev);
2025                         len = skb->len;
2026                         netif_receive_skb(skb);
2027                         break;
2028                 default:
2029                         dev_kfree_skb_any(skb);
2030                         QETH_CARD_TEXT(card, 3, "inbunkno");
2031                         QETH_DBF_HEX(CTRL, 3, hdr, QETH_DBF_CTRL_LEN);
2032                         continue;
2033                 }
2034                 work_done++;
2035                 budget--;
2036                 card->stats.rx_packets++;
2037                 card->stats.rx_bytes += len;
2038         }
2039         return work_done;
2040 }
2041
2042 static int qeth_l3_poll(struct napi_struct *napi, int budget)
2043 {
2044         struct qeth_card *card = container_of(napi, struct qeth_card, napi);
2045         int work_done = 0;
2046         struct qeth_qdio_buffer *buffer;
2047         int done;
2048         int new_budget = budget;
2049
2050         if (card->options.performance_stats) {
2051                 card->perf_stats.inbound_cnt++;
2052                 card->perf_stats.inbound_start_time = qeth_get_micros();
2053         }
2054
2055         while (1) {
2056                 if (!card->rx.b_count) {
2057                         card->rx.qdio_err = 0;
2058                         card->rx.b_count = qdio_get_next_buffers(
2059                                 card->data.ccwdev, 0, &card->rx.b_index,
2060                                 &card->rx.qdio_err);
2061                         if (card->rx.b_count <= 0) {
2062                                 card->rx.b_count = 0;
2063                                 break;
2064                         }
2065                         card->rx.b_element =
2066                                 &card->qdio.in_q->bufs[card->rx.b_index]
2067                                 .buffer->element[0];
2068                         card->rx.e_offset = 0;
2069                 }
2070
2071                 while (card->rx.b_count) {
2072                         buffer = &card->qdio.in_q->bufs[card->rx.b_index];
2073                         if (!(card->rx.qdio_err &&
2074                             qeth_check_qdio_errors(card, buffer->buffer,
2075                             card->rx.qdio_err, "qinerr")))
2076                                 work_done += qeth_l3_process_inbound_buffer(
2077                                         card, new_budget, &done);
2078                         else
2079                                 done = 1;
2080
2081                         if (done) {
2082                                 if (card->options.performance_stats)
2083                                         card->perf_stats.bufs_rec++;
2084                                 qeth_put_buffer_pool_entry(card,
2085                                         buffer->pool_entry);
2086                                 qeth_queue_input_buffer(card, card->rx.b_index);
2087                                 card->rx.b_count--;
2088                                 if (card->rx.b_count) {
2089                                         card->rx.b_index =
2090                                                 (card->rx.b_index + 1) %
2091                                                 QDIO_MAX_BUFFERS_PER_Q;
2092                                         card->rx.b_element =
2093                                                 &card->qdio.in_q
2094                                                 ->bufs[card->rx.b_index]
2095                                                 .buffer->element[0];
2096                                         card->rx.e_offset = 0;
2097                                 }
2098                         }
2099
2100                         if (work_done >= budget)
2101                                 goto out;
2102                         else
2103                                 new_budget = budget - work_done;
2104                 }
2105         }
2106
2107         napi_complete(napi);
2108         if (qdio_start_irq(card->data.ccwdev, 0))
2109                 napi_schedule(&card->napi);
2110 out:
2111         if (card->options.performance_stats)
2112                 card->perf_stats.inbound_time += qeth_get_micros() -
2113                         card->perf_stats.inbound_start_time;
2114         return work_done;
2115 }
2116
2117 static int qeth_l3_verify_vlan_dev(struct net_device *dev,
2118                         struct qeth_card *card)
2119 {
2120         int rc = 0;
2121         struct vlan_group *vg;
2122         int i;
2123
2124         vg = card->vlangrp;
2125         if (!vg)
2126                 return rc;
2127
2128         for (i = 0; i < VLAN_N_VID; i++) {
2129                 if (vlan_group_get_device(vg, i) == dev) {
2130                         rc = QETH_VLAN_CARD;
2131                         break;
2132                 }
2133         }
2134
2135         if (rc && !(vlan_dev_real_dev(dev)->ml_priv == (void *)card))
2136                 return 0;
2137
2138         return rc;
2139 }
2140
2141 static int qeth_l3_verify_dev(struct net_device *dev)
2142 {
2143         struct qeth_card *card;
2144         unsigned long flags;
2145         int rc = 0;
2146
2147         read_lock_irqsave(&qeth_core_card_list.rwlock, flags);
2148         list_for_each_entry(card, &qeth_core_card_list.list, list) {
2149                 if (card->dev == dev) {
2150                         rc = QETH_REAL_CARD;
2151                         break;
2152                 }
2153                 rc = qeth_l3_verify_vlan_dev(dev, card);
2154                 if (rc)
2155                         break;
2156         }
2157         read_unlock_irqrestore(&qeth_core_card_list.rwlock, flags);
2158
2159         return rc;
2160 }
2161
2162 static struct qeth_card *qeth_l3_get_card_from_dev(struct net_device *dev)
2163 {
2164         struct qeth_card *card = NULL;
2165         int rc;
2166
2167         rc = qeth_l3_verify_dev(dev);
2168         if (rc == QETH_REAL_CARD)
2169                 card = dev->ml_priv;
2170         else if (rc == QETH_VLAN_CARD)
2171                 card = vlan_dev_real_dev(dev)->ml_priv;
2172         if (card && card->options.layer2)
2173                 card = NULL;
2174         if (card)
2175                 QETH_CARD_TEXT_(card, 4, "%d", rc);
2176         return card ;
2177 }
2178
2179 static int qeth_l3_stop_card(struct qeth_card *card, int recovery_mode)
2180 {
2181         int rc = 0;
2182
2183         QETH_DBF_TEXT(SETUP, 2, "stopcard");
2184         QETH_DBF_HEX(SETUP, 2, &card, sizeof(void *));
2185
2186         qeth_set_allowed_threads(card, 0, 1);
2187         if (card->options.sniffer &&
2188             (card->info.promisc_mode == SET_PROMISC_MODE_ON))
2189                 qeth_diags_trace(card, QETH_DIAGS_CMD_TRACE_DISABLE);
2190         if (card->read.state == CH_STATE_UP &&
2191             card->write.state == CH_STATE_UP &&
2192             (card->state == CARD_STATE_UP)) {
2193                 if (recovery_mode)
2194                         qeth_l3_stop(card->dev);
2195                 else {
2196                         rtnl_lock();
2197                         dev_close(card->dev);
2198                         rtnl_unlock();
2199                 }
2200                 card->state = CARD_STATE_SOFTSETUP;
2201         }
2202         if (card->state == CARD_STATE_SOFTSETUP) {
2203                 qeth_l3_clear_ip_list(card, 1);
2204                 qeth_clear_ipacmd_list(card);
2205                 card->state = CARD_STATE_HARDSETUP;
2206         }
2207         if (card->state == CARD_STATE_HARDSETUP) {
2208                 qeth_qdio_clear_card(card, 0);
2209                 qeth_clear_qdio_buffers(card);
2210                 qeth_clear_working_pool_list(card);
2211                 card->state = CARD_STATE_DOWN;
2212         }
2213         if (card->state == CARD_STATE_DOWN) {
2214                 qeth_clear_cmd_buffers(&card->read);
2215                 qeth_clear_cmd_buffers(&card->write);
2216         }
2217         return rc;
2218 }
2219
2220 /*
2221  * test for and Switch promiscuous mode (on or off)
2222  *  either for guestlan or HiperSocket Sniffer
2223  */
2224 static void
2225 qeth_l3_handle_promisc_mode(struct qeth_card *card)
2226 {
2227         struct net_device *dev = card->dev;
2228
2229         if (((dev->flags & IFF_PROMISC) &&
2230              (card->info.promisc_mode == SET_PROMISC_MODE_ON)) ||
2231             (!(dev->flags & IFF_PROMISC) &&
2232              (card->info.promisc_mode == SET_PROMISC_MODE_OFF)))
2233                 return;
2234
2235         if (card->info.guestlan) {              /* Guestlan trace */
2236                 if (qeth_adp_supported(card, IPA_SETADP_SET_PROMISC_MODE))
2237                         qeth_setadp_promisc_mode(card);
2238         } else if (card->options.sniffer &&     /* HiperSockets trace */
2239                    qeth_adp_supported(card, IPA_SETADP_SET_DIAG_ASSIST)) {
2240                 if (dev->flags & IFF_PROMISC) {
2241                         QETH_CARD_TEXT(card, 3, "+promisc");
2242                         qeth_diags_trace(card, QETH_DIAGS_CMD_TRACE_ENABLE);
2243                 } else {
2244                         QETH_CARD_TEXT(card, 3, "-promisc");
2245                         qeth_diags_trace(card, QETH_DIAGS_CMD_TRACE_DISABLE);
2246                 }
2247         }
2248 }
2249
2250 static void qeth_l3_set_multicast_list(struct net_device *dev)
2251 {
2252         struct qeth_card *card = dev->ml_priv;
2253
2254         QETH_CARD_TEXT(card, 3, "setmulti");
2255         if (qeth_threads_running(card, QETH_RECOVER_THREAD) &&
2256             (card->state != CARD_STATE_UP))
2257                 return;
2258         if (!card->options.sniffer) {
2259                 qeth_l3_delete_mc_addresses(card);
2260                 qeth_l3_add_multicast_ipv4(card);
2261 #ifdef CONFIG_QETH_IPV6
2262                 qeth_l3_add_multicast_ipv6(card);
2263 #endif
2264                 qeth_l3_set_ip_addr_list(card);
2265                 if (!qeth_adp_supported(card, IPA_SETADP_SET_PROMISC_MODE))
2266                         return;
2267         }
2268         qeth_l3_handle_promisc_mode(card);
2269 }
2270
2271 static const char *qeth_l3_arp_get_error_cause(int *rc)
2272 {
2273         switch (*rc) {
2274         case QETH_IPA_ARP_RC_FAILED:
2275                 *rc = -EIO;
2276                 return "operation failed";
2277         case QETH_IPA_ARP_RC_NOTSUPP:
2278                 *rc = -EOPNOTSUPP;
2279                 return "operation not supported";
2280         case QETH_IPA_ARP_RC_OUT_OF_RANGE:
2281                 *rc = -EINVAL;
2282                 return "argument out of range";
2283         case QETH_IPA_ARP_RC_Q_NOTSUPP:
2284                 *rc = -EOPNOTSUPP;
2285                 return "query operation not supported";
2286         case QETH_IPA_ARP_RC_Q_NO_DATA:
2287                 *rc = -ENOENT;
2288                 return "no query data available";
2289         default:
2290                 return "unknown error";
2291         }
2292 }
2293
2294 static int qeth_l3_arp_set_no_entries(struct qeth_card *card, int no_entries)
2295 {
2296         int tmp;
2297         int rc;
2298
2299         QETH_CARD_TEXT(card, 3, "arpstnoe");
2300
2301         /*
2302          * currently GuestLAN only supports the ARP assist function
2303          * IPA_CMD_ASS_ARP_QUERY_INFO, but not IPA_CMD_ASS_ARP_SET_NO_ENTRIES;
2304          * thus we say EOPNOTSUPP for this ARP function
2305          */
2306         if (card->info.guestlan)
2307                 return -EOPNOTSUPP;
2308         if (!qeth_is_supported(card, IPA_ARP_PROCESSING)) {
2309                 return -EOPNOTSUPP;
2310         }
2311         rc = qeth_l3_send_simple_setassparms(card, IPA_ARP_PROCESSING,
2312                                           IPA_CMD_ASS_ARP_SET_NO_ENTRIES,
2313                                           no_entries);
2314         if (rc) {
2315                 tmp = rc;
2316                 QETH_DBF_MESSAGE(2, "Could not set number of ARP entries on "
2317                         "%s: %s (0x%x/%d)\n", QETH_CARD_IFNAME(card),
2318                         qeth_l3_arp_get_error_cause(&rc), tmp, tmp);
2319         }
2320         return rc;
2321 }
2322
2323 static __u32 get_arp_entry_size(struct qeth_card *card,
2324                         struct qeth_arp_query_data *qdata,
2325                         struct qeth_arp_entrytype *type, __u8 strip_entries)
2326 {
2327         __u32 rc;
2328         __u8 is_hsi;
2329
2330         is_hsi = qdata->reply_bits == 5;
2331         if (type->ip == QETHARP_IP_ADDR_V4) {
2332                 QETH_CARD_TEXT(card, 4, "arpev4");
2333                 if (strip_entries) {
2334                         rc = is_hsi ? sizeof(struct qeth_arp_qi_entry5_short) :
2335                                 sizeof(struct qeth_arp_qi_entry7_short);
2336                 } else {
2337                         rc = is_hsi ? sizeof(struct qeth_arp_qi_entry5) :
2338                                 sizeof(struct qeth_arp_qi_entry7);
2339                 }
2340         } else if (type->ip == QETHARP_IP_ADDR_V6) {
2341                 QETH_CARD_TEXT(card, 4, "arpev6");
2342                 if (strip_entries) {
2343                         rc = is_hsi ?
2344                                 sizeof(struct qeth_arp_qi_entry5_short_ipv6) :
2345                                 sizeof(struct qeth_arp_qi_entry7_short_ipv6);
2346                 } else {
2347                         rc = is_hsi ?
2348                                 sizeof(struct qeth_arp_qi_entry5_ipv6) :
2349                                 sizeof(struct qeth_arp_qi_entry7_ipv6);
2350                 }
2351         } else {
2352                 QETH_CARD_TEXT(card, 4, "arpinv");
2353                 rc = 0;
2354         }
2355
2356         return rc;
2357 }
2358
2359 static int arpentry_matches_prot(struct qeth_arp_entrytype *type, __u16 prot)
2360 {
2361         return (type->ip == QETHARP_IP_ADDR_V4 && prot == QETH_PROT_IPV4) ||
2362                 (type->ip == QETHARP_IP_ADDR_V6 && prot == QETH_PROT_IPV6);
2363 }
2364
2365 static int qeth_l3_arp_query_cb(struct qeth_card *card,
2366                 struct qeth_reply *reply, unsigned long data)
2367 {
2368         struct qeth_ipa_cmd *cmd;
2369         struct qeth_arp_query_data *qdata;
2370         struct qeth_arp_query_info *qinfo;
2371         int i;
2372         int e;
2373         int entrybytes_done;
2374         int stripped_bytes;
2375         __u8 do_strip_entries;
2376
2377         QETH_CARD_TEXT(card, 3, "arpquecb");
2378
2379         qinfo = (struct qeth_arp_query_info *) reply->param;
2380         cmd = (struct qeth_ipa_cmd *) data;
2381         QETH_CARD_TEXT_(card, 4, "%i", cmd->hdr.prot_version);
2382         if (cmd->hdr.return_code) {
2383                 QETH_CARD_TEXT(card, 4, "arpcberr");
2384                 QETH_CARD_TEXT_(card, 4, "%i", cmd->hdr.return_code);
2385                 return 0;
2386         }
2387         if (cmd->data.setassparms.hdr.return_code) {
2388                 cmd->hdr.return_code = cmd->data.setassparms.hdr.return_code;
2389                 QETH_CARD_TEXT(card, 4, "setaperr");
2390                 QETH_CARD_TEXT_(card, 4, "%i", cmd->hdr.return_code);
2391                 return 0;
2392         }
2393         qdata = &cmd->data.setassparms.data.query_arp;
2394         QETH_CARD_TEXT_(card, 4, "anoen%i", qdata->no_entries);
2395
2396         do_strip_entries = (qinfo->mask_bits & QETH_QARP_STRIP_ENTRIES) > 0;
2397         stripped_bytes = do_strip_entries ? QETH_QARP_MEDIASPECIFIC_BYTES : 0;
2398         entrybytes_done = 0;
2399         for (e = 0; e < qdata->no_entries; ++e) {
2400                 char *cur_entry;
2401                 __u32 esize;
2402                 struct qeth_arp_entrytype *etype;
2403
2404                 cur_entry = &qdata->data + entrybytes_done;
2405                 etype = &((struct qeth_arp_qi_entry5 *) cur_entry)->type;
2406                 if (!arpentry_matches_prot(etype, cmd->hdr.prot_version)) {
2407                         QETH_CARD_TEXT(card, 4, "pmis");
2408                         QETH_CARD_TEXT_(card, 4, "%i", etype->ip);
2409                         break;
2410                 }
2411                 esize = get_arp_entry_size(card, qdata, etype,
2412                         do_strip_entries);
2413                 QETH_CARD_TEXT_(card, 5, "esz%i", esize);
2414                 if (!esize)
2415                         break;
2416
2417                 if ((qinfo->udata_len - qinfo->udata_offset) < esize) {
2418                         QETH_CARD_TEXT_(card, 4, "qaer3%i", -ENOMEM);
2419                         cmd->hdr.return_code = -ENOMEM;
2420                         goto out_error;
2421                 }
2422
2423                 memcpy(qinfo->udata + qinfo->udata_offset,
2424                         &qdata->data + entrybytes_done + stripped_bytes,
2425                         esize);
2426                 entrybytes_done += esize + stripped_bytes;
2427                 qinfo->udata_offset += esize;
2428                 ++qinfo->no_entries;
2429         }
2430         /* check if all replies received ... */
2431         if (cmd->data.setassparms.hdr.seq_no <
2432             cmd->data.setassparms.hdr.number_of_replies)
2433                 return 1;
2434         QETH_CARD_TEXT_(card, 4, "nove%i", qinfo->no_entries);
2435         memcpy(qinfo->udata, &qinfo->no_entries, 4);
2436         /* keep STRIP_ENTRIES flag so the user program can distinguish
2437          * stripped entries from normal ones */
2438         if (qinfo->mask_bits & QETH_QARP_STRIP_ENTRIES)
2439                 qdata->reply_bits |= QETH_QARP_STRIP_ENTRIES;
2440         memcpy(qinfo->udata + QETH_QARP_MASK_OFFSET, &qdata->reply_bits, 2);
2441         QETH_CARD_TEXT_(card, 4, "rc%i", 0);
2442         return 0;
2443 out_error:
2444         i = 0;
2445         memcpy(qinfo->udata, &i, 4);
2446         return 0;
2447 }
2448
2449 static int qeth_l3_send_ipa_arp_cmd(struct qeth_card *card,
2450                 struct qeth_cmd_buffer *iob, int len,
2451                 int (*reply_cb)(struct qeth_card *, struct qeth_reply *,
2452                         unsigned long),
2453                 void *reply_param)
2454 {
2455         QETH_CARD_TEXT(card, 4, "sendarp");
2456
2457         memcpy(iob->data, IPA_PDU_HEADER, IPA_PDU_HEADER_SIZE);
2458         memcpy(QETH_IPA_CMD_DEST_ADDR(iob->data),
2459                &card->token.ulp_connection_r, QETH_MPC_TOKEN_LENGTH);
2460         return qeth_send_control_data(card, IPA_PDU_HEADER_SIZE + len, iob,
2461                                       reply_cb, reply_param);
2462 }
2463
2464 static int qeth_l3_query_arp_cache_info(struct qeth_card *card,
2465         enum qeth_prot_versions prot,
2466         struct qeth_arp_query_info *qinfo)
2467 {
2468         struct qeth_cmd_buffer *iob;
2469         struct qeth_ipa_cmd *cmd;
2470         int tmp;
2471         int rc;
2472
2473         QETH_CARD_TEXT_(card, 3, "qarpipv%i", prot);
2474
2475         iob = qeth_l3_get_setassparms_cmd(card, IPA_ARP_PROCESSING,
2476                         IPA_CMD_ASS_ARP_QUERY_INFO,
2477                         sizeof(struct qeth_arp_query_data) - sizeof(char),
2478                         prot);
2479         cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
2480         cmd->data.setassparms.data.query_arp.request_bits = 0x000F;
2481         cmd->data.setassparms.data.query_arp.reply_bits = 0;
2482         cmd->data.setassparms.data.query_arp.no_entries = 0;
2483         rc = qeth_l3_send_ipa_arp_cmd(card, iob,
2484                            QETH_SETASS_BASE_LEN+QETH_ARP_CMD_LEN,
2485                            qeth_l3_arp_query_cb, (void *)qinfo);
2486         if (rc) {
2487                 tmp = rc;
2488                 QETH_DBF_MESSAGE(2,
2489                         "Error while querying ARP cache on %s: %s "
2490                         "(0x%x/%d)\n", QETH_CARD_IFNAME(card),
2491                         qeth_l3_arp_get_error_cause(&rc), tmp, tmp);
2492         }
2493
2494         return rc;
2495 }
2496
2497 static int qeth_l3_arp_query(struct qeth_card *card, char __user *udata)
2498 {
2499         struct qeth_arp_query_info qinfo = {0, };
2500         int rc;
2501
2502         QETH_CARD_TEXT(card, 3, "arpquery");
2503
2504         if (!qeth_is_supported(card,/*IPA_QUERY_ARP_ADDR_INFO*/
2505                                IPA_ARP_PROCESSING)) {
2506                 QETH_CARD_TEXT(card, 3, "arpqnsup");
2507                 rc = -EOPNOTSUPP;
2508                 goto out;
2509         }
2510         /* get size of userspace buffer and mask_bits -> 6 bytes */
2511         if (copy_from_user(&qinfo, udata, 6)) {
2512                 rc = -EFAULT;
2513                 goto out;
2514         }
2515         qinfo.udata = kzalloc(qinfo.udata_len, GFP_KERNEL);
2516         if (!qinfo.udata) {
2517                 rc = -ENOMEM;
2518                 goto out;
2519         }
2520         qinfo.udata_offset = QETH_QARP_ENTRIES_OFFSET;
2521         rc = qeth_l3_query_arp_cache_info(card, QETH_PROT_IPV4, &qinfo);
2522         if (rc) {
2523                 if (copy_to_user(udata, qinfo.udata, 4))
2524                         rc = -EFAULT;
2525                         goto free_and_out;
2526         } else {
2527 #ifdef CONFIG_QETH_IPV6
2528                 if (qinfo.mask_bits & QETH_QARP_WITH_IPV6) {
2529                         /* fails in case of GuestLAN QDIO mode */
2530                         qeth_l3_query_arp_cache_info(card, QETH_PROT_IPV6,
2531                                 &qinfo);
2532                 }
2533 #endif
2534                 if (copy_to_user(udata, qinfo.udata, qinfo.udata_len)) {
2535                         QETH_CARD_TEXT(card, 4, "qactf");
2536                         rc = -EFAULT;
2537                         goto free_and_out;
2538                 }
2539                 QETH_CARD_TEXT_(card, 4, "qacts");
2540         }
2541 free_and_out:
2542         kfree(qinfo.udata);
2543 out:
2544         return rc;
2545 }
2546
2547 static int qeth_l3_arp_add_entry(struct qeth_card *card,
2548                                 struct qeth_arp_cache_entry *entry)
2549 {
2550         struct qeth_cmd_buffer *iob;
2551         char buf[16];
2552         int tmp;
2553         int rc;
2554
2555         QETH_CARD_TEXT(card, 3, "arpadent");
2556
2557         /*
2558          * currently GuestLAN only supports the ARP assist function
2559          * IPA_CMD_ASS_ARP_QUERY_INFO, but not IPA_CMD_ASS_ARP_ADD_ENTRY;
2560          * thus we say EOPNOTSUPP for this ARP function
2561          */
2562         if (card->info.guestlan)
2563                 return -EOPNOTSUPP;
2564         if (!qeth_is_supported(card, IPA_ARP_PROCESSING)) {
2565                 return -EOPNOTSUPP;
2566         }
2567
2568         iob = qeth_l3_get_setassparms_cmd(card, IPA_ARP_PROCESSING,
2569                                        IPA_CMD_ASS_ARP_ADD_ENTRY,
2570                                        sizeof(struct qeth_arp_cache_entry),
2571                                        QETH_PROT_IPV4);
2572         rc = qeth_l3_send_setassparms(card, iob,
2573                                    sizeof(struct qeth_arp_cache_entry),
2574                                    (unsigned long) entry,
2575                                    qeth_l3_default_setassparms_cb, NULL);
2576         if (rc) {
2577                 tmp = rc;
2578                 qeth_l3_ipaddr4_to_string((u8 *)entry->ipaddr, buf);
2579                 QETH_DBF_MESSAGE(2, "Could not add ARP entry for address %s "
2580                         "on %s: %s (0x%x/%d)\n", buf, QETH_CARD_IFNAME(card),
2581                         qeth_l3_arp_get_error_cause(&rc), tmp, tmp);
2582         }
2583         return rc;
2584 }
2585
2586 static int qeth_l3_arp_remove_entry(struct qeth_card *card,
2587                                 struct qeth_arp_cache_entry *entry)
2588 {
2589         struct qeth_cmd_buffer *iob;
2590         char buf[16] = {0, };
2591         int tmp;
2592         int rc;
2593
2594         QETH_CARD_TEXT(card, 3, "arprment");
2595
2596         /*
2597          * currently GuestLAN only supports the ARP assist function
2598          * IPA_CMD_ASS_ARP_QUERY_INFO, but not IPA_CMD_ASS_ARP_REMOVE_ENTRY;
2599          * thus we say EOPNOTSUPP for this ARP function
2600          */
2601         if (card->info.guestlan)
2602                 return -EOPNOTSUPP;
2603         if (!qeth_is_supported(card, IPA_ARP_PROCESSING)) {
2604                 return -EOPNOTSUPP;
2605         }
2606         memcpy(buf, entry, 12);
2607         iob = qeth_l3_get_setassparms_cmd(card, IPA_ARP_PROCESSING,
2608                                        IPA_CMD_ASS_ARP_REMOVE_ENTRY,
2609                                        12,
2610                                        QETH_PROT_IPV4);
2611         rc = qeth_l3_send_setassparms(card, iob,
2612                                    12, (unsigned long)buf,
2613                                    qeth_l3_default_setassparms_cb, NULL);
2614         if (rc) {
2615                 tmp = rc;
2616                 memset(buf, 0, 16);
2617                 qeth_l3_ipaddr4_to_string((u8 *)entry->ipaddr, buf);
2618                 QETH_DBF_MESSAGE(2, "Could not delete ARP entry for address %s"
2619                         " on %s: %s (0x%x/%d)\n", buf, QETH_CARD_IFNAME(card),
2620                         qeth_l3_arp_get_error_cause(&rc), tmp, tmp);
2621         }
2622         return rc;
2623 }
2624
2625 static int qeth_l3_arp_flush_cache(struct qeth_card *card)
2626 {
2627         int rc;
2628         int tmp;
2629
2630         QETH_CARD_TEXT(card, 3, "arpflush");
2631
2632         /*
2633          * currently GuestLAN only supports the ARP assist function
2634          * IPA_CMD_ASS_ARP_QUERY_INFO, but not IPA_CMD_ASS_ARP_FLUSH_CACHE;
2635          * thus we say EOPNOTSUPP for this ARP function
2636         */
2637         if (card->info.guestlan || (card->info.type == QETH_CARD_TYPE_IQD))
2638                 return -EOPNOTSUPP;
2639         if (!qeth_is_supported(card, IPA_ARP_PROCESSING)) {
2640                 return -EOPNOTSUPP;
2641         }
2642         rc = qeth_l3_send_simple_setassparms(card, IPA_ARP_PROCESSING,
2643                                           IPA_CMD_ASS_ARP_FLUSH_CACHE, 0);
2644         if (rc) {
2645                 tmp = rc;
2646                 QETH_DBF_MESSAGE(2, "Could not flush ARP cache on %s: %s "
2647                         "(0x%x/%d)\n", QETH_CARD_IFNAME(card),
2648                         qeth_l3_arp_get_error_cause(&rc), tmp, tmp);
2649         }
2650         return rc;
2651 }
2652
2653 static int qeth_l3_do_ioctl(struct net_device *dev, struct ifreq *rq, int cmd)
2654 {
2655         struct qeth_card *card = dev->ml_priv;
2656         struct qeth_arp_cache_entry arp_entry;
2657         struct mii_ioctl_data *mii_data;
2658         int rc = 0;
2659
2660         if (!card)
2661                 return -ENODEV;
2662
2663         if ((card->state != CARD_STATE_UP) &&
2664                 (card->state != CARD_STATE_SOFTSETUP))
2665                 return -ENODEV;
2666
2667         switch (cmd) {
2668         case SIOC_QETH_ARP_SET_NO_ENTRIES:
2669                 if (!capable(CAP_NET_ADMIN)) {
2670                         rc = -EPERM;
2671                         break;
2672                 }
2673                 rc = qeth_l3_arp_set_no_entries(card, rq->ifr_ifru.ifru_ivalue);
2674                 break;
2675         case SIOC_QETH_ARP_QUERY_INFO:
2676                 if (!capable(CAP_NET_ADMIN)) {
2677                         rc = -EPERM;
2678                         break;
2679                 }
2680                 rc = qeth_l3_arp_query(card, rq->ifr_ifru.ifru_data);
2681                 break;
2682         case SIOC_QETH_ARP_ADD_ENTRY:
2683                 if (!capable(CAP_NET_ADMIN)) {
2684                         rc = -EPERM;
2685                         break;
2686                 }
2687                 if (copy_from_user(&arp_entry, rq->ifr_ifru.ifru_data,
2688                                    sizeof(struct qeth_arp_cache_entry)))
2689                         rc = -EFAULT;
2690                 else
2691                         rc = qeth_l3_arp_add_entry(card, &arp_entry);
2692                 break;
2693         case SIOC_QETH_ARP_REMOVE_ENTRY:
2694                 if (!capable(CAP_NET_ADMIN)) {
2695                         rc = -EPERM;
2696                         break;
2697                 }
2698                 if (copy_from_user(&arp_entry, rq->ifr_ifru.ifru_data,
2699                                    sizeof(struct qeth_arp_cache_entry)))
2700                         rc = -EFAULT;
2701                 else
2702                         rc = qeth_l3_arp_remove_entry(card, &arp_entry);
2703                 break;
2704         case SIOC_QETH_ARP_FLUSH_CACHE:
2705                 if (!capable(CAP_NET_ADMIN)) {
2706                         rc = -EPERM;
2707                         break;
2708                 }
2709                 rc = qeth_l3_arp_flush_cache(card);
2710                 break;
2711         case SIOC_QETH_ADP_SET_SNMP_CONTROL:
2712                 rc = qeth_snmp_command(card, rq->ifr_ifru.ifru_data);
2713                 break;
2714         case SIOC_QETH_GET_CARD_TYPE:
2715                 if ((card->info.type == QETH_CARD_TYPE_OSD ||
2716                      card->info.type == QETH_CARD_TYPE_OSX) &&
2717                     !card->info.guestlan)
2718                         return 1;
2719                 return 0;
2720                 break;
2721         case SIOCGMIIPHY:
2722                 mii_data = if_mii(rq);
2723                 mii_data->phy_id = 0;
2724                 break;
2725         case SIOCGMIIREG:
2726                 mii_data = if_mii(rq);
2727                 if (mii_data->phy_id != 0)
2728                         rc = -EINVAL;
2729                 else
2730                         mii_data->val_out = qeth_mdio_read(dev,
2731                                                         mii_data->phy_id,
2732                                                         mii_data->reg_num);
2733                 break;
2734         default:
2735                 rc = -EOPNOTSUPP;
2736         }
2737         if (rc)
2738                 QETH_CARD_TEXT_(card, 2, "ioce%d", rc);
2739         return rc;
2740 }
2741
2742 int inline qeth_l3_get_cast_type(struct qeth_card *card, struct sk_buff *skb)
2743 {
2744         int cast_type = RTN_UNSPEC;
2745         struct neighbour *n = NULL;
2746         struct dst_entry *dst;
2747
2748         dst = skb_dst(skb);
2749         if (dst)
2750                 n = dst_get_neighbour(dst);
2751         if (n) {
2752                 cast_type = n->type;
2753                 if ((cast_type == RTN_BROADCAST) ||
2754                     (cast_type == RTN_MULTICAST) ||
2755                     (cast_type == RTN_ANYCAST))
2756                         return cast_type;
2757                 else
2758                         return RTN_UNSPEC;
2759         }
2760         /* try something else */
2761         if (skb->protocol == ETH_P_IPV6)
2762                 return (skb_network_header(skb)[24] == 0xff) ?
2763                                 RTN_MULTICAST : 0;
2764         else if (skb->protocol == ETH_P_IP)
2765                 return ((skb_network_header(skb)[16] & 0xf0) == 0xe0) ?
2766                                 RTN_MULTICAST : 0;
2767         /* ... */
2768         if (!memcmp(skb->data, skb->dev->broadcast, 6))
2769                 return RTN_BROADCAST;
2770         else {
2771                 u16 hdr_mac;
2772
2773                 hdr_mac = *((u16 *)skb->data);
2774                 /* tr multicast? */
2775                 switch (card->info.link_type) {
2776                 case QETH_LINK_TYPE_HSTR:
2777                 case QETH_LINK_TYPE_LANE_TR:
2778                         if ((hdr_mac == QETH_TR_MAC_NC) ||
2779                             (hdr_mac == QETH_TR_MAC_C))
2780                                 return RTN_MULTICAST;
2781                         break;
2782                 /* eth or so multicast? */
2783                 default:
2784                 if ((hdr_mac == QETH_ETH_MAC_V4) ||
2785                             (hdr_mac == QETH_ETH_MAC_V6))
2786                                 return RTN_MULTICAST;
2787                 }
2788         }
2789         return cast_type;
2790 }
2791
2792 static void qeth_l3_fill_header(struct qeth_card *card, struct qeth_hdr *hdr,
2793                 struct sk_buff *skb, int ipv, int cast_type)
2794 {
2795         struct neighbour *n = NULL;
2796         struct dst_entry *dst;
2797
2798         memset(hdr, 0, sizeof(struct qeth_hdr));
2799         hdr->hdr.l3.id = QETH_HEADER_TYPE_LAYER3;
2800         hdr->hdr.l3.ext_flags = 0;
2801
2802         /*
2803          * before we're going to overwrite this location with next hop ip.
2804          * v6 uses passthrough, v4 sets the tag in the QDIO header.
2805          */
2806         if (card->vlangrp && vlan_tx_tag_present(skb)) {
2807                 if ((ipv == 4) || (card->info.type == QETH_CARD_TYPE_IQD))
2808                         hdr->hdr.l3.ext_flags = QETH_HDR_EXT_VLAN_FRAME;
2809                 else
2810                         hdr->hdr.l3.ext_flags = QETH_HDR_EXT_INCLUDE_VLAN_TAG;
2811                 hdr->hdr.l3.vlan_id = vlan_tx_tag_get(skb);
2812         }
2813
2814         hdr->hdr.l3.length = skb->len - sizeof(struct qeth_hdr);
2815         dst = skb_dst(skb);
2816         if (dst)
2817                 n = dst_get_neighbour(dst);
2818         if (ipv == 4) {
2819                 /* IPv4 */
2820                 hdr->hdr.l3.flags = qeth_l3_get_qeth_hdr_flags4(cast_type);
2821                 memset(hdr->hdr.l3.dest_addr, 0, 12);
2822                 if (n) {
2823                         *((u32 *) (&hdr->hdr.l3.dest_addr[12])) =
2824                             *((u32 *) n->primary_key);
2825                 } else {
2826                         /* fill in destination address used in ip header */
2827                         *((u32 *) (&hdr->hdr.l3.dest_addr[12])) =
2828                                                         ip_hdr(skb)->daddr;
2829                 }
2830         } else if (ipv == 6) {
2831                 /* IPv6 */
2832                 hdr->hdr.l3.flags = qeth_l3_get_qeth_hdr_flags6(cast_type);
2833                 if (card->info.type == QETH_CARD_TYPE_IQD)
2834                         hdr->hdr.l3.flags &= ~QETH_HDR_PASSTHRU;
2835                 if (n) {
2836                         memcpy(hdr->hdr.l3.dest_addr,
2837                                n->primary_key, 16);
2838                 } else {
2839                         /* fill in destination address used in ip header */
2840                         memcpy(hdr->hdr.l3.dest_addr,
2841                                &ipv6_hdr(skb)->daddr, 16);
2842                 }
2843         } else {
2844                 /* passthrough */
2845                 if ((skb->dev->type == ARPHRD_IEEE802_TR) &&
2846                         !memcmp(skb->data + sizeof(struct qeth_hdr) +
2847                         sizeof(__u16), skb->dev->broadcast, 6)) {
2848                         hdr->hdr.l3.flags = QETH_CAST_BROADCAST |
2849                                                 QETH_HDR_PASSTHRU;
2850                 } else if (!memcmp(skb->data + sizeof(struct qeth_hdr),
2851                             skb->dev->broadcast, 6)) {
2852                         /* broadcast? */
2853                         hdr->hdr.l3.flags = QETH_CAST_BROADCAST |
2854                                                 QETH_HDR_PASSTHRU;
2855                 } else {
2856                         hdr->hdr.l3.flags = (cast_type == RTN_MULTICAST) ?
2857                                 QETH_CAST_MULTICAST | QETH_HDR_PASSTHRU :
2858                                 QETH_CAST_UNICAST | QETH_HDR_PASSTHRU;
2859                 }
2860         }
2861 }
2862
2863 static inline void qeth_l3_hdr_csum(struct qeth_card *card,
2864                 struct qeth_hdr *hdr, struct sk_buff *skb)
2865 {
2866         struct iphdr *iph = ip_hdr(skb);
2867
2868         /* tcph->check contains already the pseudo hdr checksum
2869          * so just set the header flags
2870          */
2871         if (iph->protocol == IPPROTO_UDP)
2872                 hdr->hdr.l3.ext_flags |= QETH_HDR_EXT_UDP;
2873         hdr->hdr.l3.ext_flags |= QETH_HDR_EXT_CSUM_TRANSP_REQ |
2874                 QETH_HDR_EXT_CSUM_HDR_REQ;
2875         iph->check = 0;
2876         if (card->options.performance_stats)
2877                 card->perf_stats.tx_csum++;
2878 }
2879
2880 static void qeth_tso_fill_header(struct qeth_card *card,
2881                 struct qeth_hdr *qhdr, struct sk_buff *skb)
2882 {
2883         struct qeth_hdr_tso *hdr = (struct qeth_hdr_tso *)qhdr;
2884         struct tcphdr *tcph = tcp_hdr(skb);
2885         struct iphdr *iph = ip_hdr(skb);
2886         struct ipv6hdr *ip6h = ipv6_hdr(skb);
2887
2888         /*fix header to TSO values ...*/
2889         hdr->hdr.hdr.l3.id = QETH_HEADER_TYPE_TSO;
2890         hdr->hdr.hdr.l3.length = skb->len - sizeof(struct qeth_hdr_tso);
2891         /*set values which are fix for the first approach ...*/
2892         hdr->ext.hdr_tot_len = (__u16) sizeof(struct qeth_hdr_ext_tso);
2893         hdr->ext.imb_hdr_no  = 1;
2894         hdr->ext.hdr_type    = 1;
2895         hdr->ext.hdr_version = 1;
2896         hdr->ext.hdr_len     = 28;
2897         /*insert non-fix values */
2898         hdr->ext.mss = skb_shinfo(skb)->gso_size;
2899         hdr->ext.dg_hdr_len = (__u16)(iph->ihl*4 + tcph->doff*4);
2900         hdr->ext.payload_len = (__u16)(skb->len - hdr->ext.dg_hdr_len -
2901                                        sizeof(struct qeth_hdr_tso));
2902         tcph->check = 0;
2903         if (skb->protocol == ETH_P_IPV6) {
2904                 ip6h->payload_len = 0;
2905                 tcph->check = ~csum_ipv6_magic(&ip6h->saddr, &ip6h->daddr,
2906                                                0, IPPROTO_TCP, 0);
2907         } else {
2908                 /*OSA want us to set these values ...*/
2909                 tcph->check = ~csum_tcpudp_magic(iph->saddr, iph->daddr,
2910                                          0, IPPROTO_TCP, 0);
2911                 iph->tot_len = 0;
2912                 iph->check = 0;
2913         }
2914 }
2915
2916 static inline int qeth_l3_tso_elements(struct sk_buff *skb)
2917 {
2918         unsigned long tcpd = (unsigned long)tcp_hdr(skb) +
2919                 tcp_hdr(skb)->doff * 4;
2920         int tcpd_len = skb->len - (tcpd - (unsigned long)skb->data);
2921         int elements = PFN_UP(tcpd + tcpd_len - 1) - PFN_DOWN(tcpd);
2922         elements += skb_shinfo(skb)->nr_frags;
2923         return elements;
2924 }
2925
2926 static int qeth_l3_hard_start_xmit(struct sk_buff *skb, struct net_device *dev)
2927 {
2928         int rc;
2929         u16 *tag;
2930         struct qeth_hdr *hdr = NULL;
2931         int elements_needed = 0;
2932         int elems;
2933         struct qeth_card *card = dev->ml_priv;
2934         struct sk_buff *new_skb = NULL;
2935         int ipv = qeth_get_ip_version(skb);
2936         int cast_type = qeth_l3_get_cast_type(card, skb);
2937         struct qeth_qdio_out_q *queue = card->qdio.out_qs
2938                 [qeth_get_priority_queue(card, skb, ipv, cast_type)];
2939         int tx_bytes = skb->len;
2940         bool large_send;
2941         int data_offset = -1;
2942         int nr_frags;
2943
2944         if (((card->info.type == QETH_CARD_TYPE_IQD) && (!ipv)) ||
2945              card->options.sniffer)
2946                         goto tx_drop;
2947
2948         if ((card->state != CARD_STATE_UP) || !card->lan_online) {
2949                 card->stats.tx_carrier_errors++;
2950                 goto tx_drop;
2951         }
2952
2953         if ((cast_type == RTN_BROADCAST) &&
2954             (card->info.broadcast_capable == 0))
2955                 goto tx_drop;
2956
2957         if (card->options.performance_stats) {
2958                 card->perf_stats.outbound_cnt++;
2959                 card->perf_stats.outbound_start_time = qeth_get_micros();
2960         }
2961
2962         large_send = skb_is_gso(skb);
2963
2964         if ((card->info.type == QETH_CARD_TYPE_IQD) && (!large_send) &&
2965             (skb_shinfo(skb)->nr_frags == 0)) {
2966                 new_skb = skb;
2967                 data_offset = ETH_HLEN;
2968                 hdr = kmem_cache_alloc(qeth_core_header_cache, GFP_ATOMIC);
2969                 if (!hdr)
2970                         goto tx_drop;
2971                 elements_needed++;
2972         } else {
2973                 /* create a clone with writeable headroom */
2974                 new_skb = skb_realloc_headroom(skb, sizeof(struct qeth_hdr_tso)
2975                                         + VLAN_HLEN);
2976                 if (!new_skb)
2977                         goto tx_drop;
2978         }
2979
2980         if (card->info.type == QETH_CARD_TYPE_IQD) {
2981                 if (data_offset < 0)
2982                         skb_pull(new_skb, ETH_HLEN);
2983         } else {
2984                 if (ipv == 4) {
2985                         if (card->dev->type == ARPHRD_IEEE802_TR)
2986                                 skb_pull(new_skb, TR_HLEN);
2987                         else
2988                                 skb_pull(new_skb, ETH_HLEN);
2989                 }
2990
2991                 if (ipv != 4 && card->vlangrp &&
2992                                 vlan_tx_tag_present(new_skb)) {
2993                         skb_push(new_skb, VLAN_HLEN);
2994                         skb_copy_to_linear_data(new_skb, new_skb->data + 4, 4);
2995                         skb_copy_to_linear_data_offset(new_skb, 4,
2996                                 new_skb->data + 8, 4);
2997                         skb_copy_to_linear_data_offset(new_skb, 8,
2998                                 new_skb->data + 12, 4);
2999                         tag = (u16 *)(new_skb->data + 12);
3000                         *tag = __constant_htons(ETH_P_8021Q);
3001                         *(tag + 1) = htons(vlan_tx_tag_get(new_skb));
3002                         new_skb->vlan_tci = 0;
3003                 }
3004         }
3005
3006         netif_stop_queue(dev);
3007
3008         /* fix hardware limitation: as long as we do not have sbal
3009          * chaining we can not send long frag lists
3010          */
3011         if (large_send) {
3012                 if (qeth_l3_tso_elements(new_skb) + 1 > 16) {
3013                         if (skb_linearize(new_skb))
3014                                 goto tx_drop;
3015                         if (card->options.performance_stats)
3016                                 card->perf_stats.tx_lin++;
3017                 }
3018         }
3019
3020         if (large_send && (cast_type == RTN_UNSPEC)) {
3021                 hdr = (struct qeth_hdr *)skb_push(new_skb,
3022                                                 sizeof(struct qeth_hdr_tso));
3023                 memset(hdr, 0, sizeof(struct qeth_hdr_tso));
3024                 qeth_l3_fill_header(card, hdr, new_skb, ipv, cast_type);
3025                 qeth_tso_fill_header(card, hdr, new_skb);
3026                 elements_needed++;
3027         } else {
3028                 if (data_offset < 0) {
3029                         hdr = (struct qeth_hdr *)skb_push(new_skb,
3030                                                 sizeof(struct qeth_hdr));
3031                         qeth_l3_fill_header(card, hdr, new_skb, ipv,
3032                                                 cast_type);
3033                 } else {
3034                         qeth_l3_fill_header(card, hdr, new_skb, ipv,
3035                                                 cast_type);
3036                         hdr->hdr.l3.length = new_skb->len - data_offset;
3037                 }
3038
3039                 if (skb->ip_summed == CHECKSUM_PARTIAL)
3040                         qeth_l3_hdr_csum(card, hdr, new_skb);
3041         }
3042
3043         elems = qeth_get_elements_no(card, (void *)hdr, new_skb,
3044                                                  elements_needed);
3045         if (!elems) {
3046                 if (data_offset >= 0)
3047                         kmem_cache_free(qeth_core_header_cache, hdr);
3048                 goto tx_drop;
3049         }
3050         elements_needed += elems;
3051         nr_frags = skb_shinfo(new_skb)->nr_frags;
3052
3053         if (card->info.type != QETH_CARD_TYPE_IQD) {
3054                 int len;
3055                 if (large_send)
3056                         len = ((unsigned long)tcp_hdr(new_skb) +
3057                                 tcp_hdr(new_skb)->doff * 4) -
3058                                 (unsigned long)new_skb->data;
3059                 else
3060                         len = sizeof(struct qeth_hdr_layer3);
3061
3062                 if (qeth_hdr_chk_and_bounce(new_skb, len))
3063                         goto tx_drop;
3064                 rc = qeth_do_send_packet(card, queue, new_skb, hdr,
3065                                          elements_needed);
3066         } else
3067                 rc = qeth_do_send_packet_fast(card, queue, new_skb, hdr,
3068                                         elements_needed, data_offset, 0);
3069
3070         if (!rc) {
3071                 card->stats.tx_packets++;
3072                 card->stats.tx_bytes += tx_bytes;
3073                 if (new_skb != skb)
3074                         dev_kfree_skb_any(skb);
3075                 if (card->options.performance_stats) {
3076                         if (large_send) {
3077                                 card->perf_stats.large_send_bytes += tx_bytes;
3078                                 card->perf_stats.large_send_cnt++;
3079                         }
3080                         if (nr_frags) {
3081                                 card->perf_stats.sg_skbs_sent++;
3082                                 /* nr_frags + skb->data */
3083                                 card->perf_stats.sg_frags_sent += nr_frags + 1;
3084                         }
3085                 }
3086                 rc = NETDEV_TX_OK;
3087         } else {
3088                 if (data_offset >= 0)
3089                         kmem_cache_free(qeth_core_header_cache, hdr);
3090
3091                 if (rc == -EBUSY) {
3092                         if (new_skb != skb)
3093                                 dev_kfree_skb_any(new_skb);
3094                         return NETDEV_TX_BUSY;
3095                 } else
3096                         goto tx_drop;
3097         }
3098
3099         netif_wake_queue(dev);
3100         if (card->options.performance_stats)
3101                 card->perf_stats.outbound_time += qeth_get_micros() -
3102                         card->perf_stats.outbound_start_time;
3103         return rc;
3104
3105 tx_drop:
3106         card->stats.tx_dropped++;
3107         card->stats.tx_errors++;
3108         if ((new_skb != skb) && new_skb)
3109                 dev_kfree_skb_any(new_skb);
3110         dev_kfree_skb_any(skb);
3111         netif_wake_queue(dev);
3112         return NETDEV_TX_OK;
3113 }
3114
3115 static int __qeth_l3_open(struct net_device *dev)
3116 {
3117         struct qeth_card *card = dev->ml_priv;
3118         int rc = 0;
3119
3120         QETH_CARD_TEXT(card, 4, "qethopen");
3121         if (card->state == CARD_STATE_UP)
3122                 return rc;
3123         if (card->state != CARD_STATE_SOFTSETUP)
3124                 return -ENODEV;
3125         card->data.state = CH_STATE_UP;
3126         card->state = CARD_STATE_UP;
3127         netif_start_queue(dev);
3128
3129         if (qdio_stop_irq(card->data.ccwdev, 0) >= 0) {
3130                 napi_enable(&card->napi);
3131                 napi_schedule(&card->napi);
3132         } else
3133                 rc = -EIO;
3134         return rc;
3135 }
3136
3137 static int qeth_l3_open(struct net_device *dev)
3138 {
3139         struct qeth_card *card = dev->ml_priv;
3140
3141         QETH_CARD_TEXT(card, 5, "qethope_");
3142         if (qeth_wait_for_threads(card, QETH_RECOVER_THREAD)) {
3143                 QETH_CARD_TEXT(card, 3, "openREC");
3144                 return -ERESTARTSYS;
3145         }
3146         return __qeth_l3_open(dev);
3147 }
3148
3149 static int qeth_l3_stop(struct net_device *dev)
3150 {
3151         struct qeth_card *card = dev->ml_priv;
3152
3153         QETH_CARD_TEXT(card, 4, "qethstop");
3154         netif_tx_disable(dev);
3155         if (card->state == CARD_STATE_UP) {
3156                 card->state = CARD_STATE_SOFTSETUP;
3157                 napi_disable(&card->napi);
3158         }
3159         return 0;
3160 }
3161
3162 static u32 qeth_l3_fix_features(struct net_device *dev, u32 features)
3163 {
3164         struct qeth_card *card = dev->ml_priv;
3165
3166         if (!qeth_is_supported(card, IPA_OUTBOUND_CHECKSUM))
3167                 features &= ~NETIF_F_IP_CSUM;
3168         if (!qeth_is_supported(card, IPA_OUTBOUND_TSO))
3169                 features &= ~NETIF_F_TSO;
3170         if (!qeth_is_supported(card, IPA_INBOUND_CHECKSUM))
3171                 features &= ~NETIF_F_RXCSUM;
3172
3173         return features;
3174 }
3175
3176 static int qeth_l3_set_features(struct net_device *dev, u32 features)
3177 {
3178         struct qeth_card *card = dev->ml_priv;
3179         u32 changed = dev->features ^ features;
3180         int err;
3181
3182         if (!(changed & NETIF_F_RXCSUM))
3183                 return 0;
3184
3185         if (card->state == CARD_STATE_DOWN ||
3186             card->state == CARD_STATE_RECOVER)
3187                 return 0;
3188
3189         err = qeth_l3_set_rx_csum(card, features & NETIF_F_RXCSUM);
3190         if (err)
3191                 dev->features = features ^ NETIF_F_RXCSUM;
3192
3193         return err;
3194 }
3195
3196 static const struct ethtool_ops qeth_l3_ethtool_ops = {
3197         .get_link = ethtool_op_get_link,
3198         .get_strings = qeth_core_get_strings,
3199         .get_ethtool_stats = qeth_core_get_ethtool_stats,
3200         .get_sset_count = qeth_core_get_sset_count,
3201         .get_drvinfo = qeth_core_get_drvinfo,
3202         .get_settings = qeth_core_ethtool_get_settings,
3203 };
3204
3205 /*
3206  * we need NOARP for IPv4 but we want neighbor solicitation for IPv6. Setting
3207  * NOARP on the netdevice is no option because it also turns off neighbor
3208  * solicitation. For IPv4 we install a neighbor_setup function. We don't want
3209  * arp resolution but we want the hard header (packet socket will work
3210  * e.g. tcpdump)
3211  */
3212 static int qeth_l3_neigh_setup_noarp(struct neighbour *n)
3213 {
3214         n->nud_state = NUD_NOARP;
3215         memcpy(n->ha, "FAKELL", 6);
3216         n->output = n->ops->connected_output;
3217         return 0;
3218 }
3219
3220 static int
3221 qeth_l3_neigh_setup(struct net_device *dev, struct neigh_parms *np)
3222 {
3223         if (np->tbl->family == AF_INET)
3224                 np->neigh_setup = qeth_l3_neigh_setup_noarp;
3225
3226         return 0;
3227 }
3228
3229 static const struct net_device_ops qeth_l3_netdev_ops = {
3230         .ndo_open               = qeth_l3_open,
3231         .ndo_stop               = qeth_l3_stop,
3232         .ndo_get_stats          = qeth_get_stats,
3233         .ndo_start_xmit         = qeth_l3_hard_start_xmit,
3234         .ndo_validate_addr      = eth_validate_addr,
3235         .ndo_set_multicast_list = qeth_l3_set_multicast_list,
3236         .ndo_do_ioctl           = qeth_l3_do_ioctl,
3237         .ndo_change_mtu         = qeth_change_mtu,
3238         .ndo_fix_features       = qeth_l3_fix_features,
3239         .ndo_set_features       = qeth_l3_set_features,
3240         .ndo_vlan_rx_register   = qeth_l3_vlan_rx_register,
3241         .ndo_vlan_rx_add_vid    = qeth_l3_vlan_rx_add_vid,
3242         .ndo_vlan_rx_kill_vid   = qeth_l3_vlan_rx_kill_vid,
3243         .ndo_tx_timeout         = qeth_tx_timeout,
3244 };
3245
3246 static const struct net_device_ops qeth_l3_osa_netdev_ops = {
3247         .ndo_open               = qeth_l3_open,
3248         .ndo_stop               = qeth_l3_stop,
3249         .ndo_get_stats          = qeth_get_stats,
3250         .ndo_start_xmit         = qeth_l3_hard_start_xmit,
3251         .ndo_validate_addr      = eth_validate_addr,
3252         .ndo_set_multicast_list = qeth_l3_set_multicast_list,
3253         .ndo_do_ioctl           = qeth_l3_do_ioctl,
3254         .ndo_change_mtu         = qeth_change_mtu,
3255         .ndo_fix_features       = qeth_l3_fix_features,
3256         .ndo_set_features       = qeth_l3_set_features,
3257         .ndo_vlan_rx_register   = qeth_l3_vlan_rx_register,
3258         .ndo_vlan_rx_add_vid    = qeth_l3_vlan_rx_add_vid,
3259         .ndo_vlan_rx_kill_vid   = qeth_l3_vlan_rx_kill_vid,
3260         .ndo_tx_timeout         = qeth_tx_timeout,
3261         .ndo_neigh_setup        = qeth_l3_neigh_setup,
3262 };
3263
3264 static int qeth_l3_setup_netdev(struct qeth_card *card)
3265 {
3266         if (card->info.type == QETH_CARD_TYPE_OSD ||
3267             card->info.type == QETH_CARD_TYPE_OSX) {
3268                 if ((card->info.link_type == QETH_LINK_TYPE_LANE_TR) ||
3269                     (card->info.link_type == QETH_LINK_TYPE_HSTR)) {
3270 #ifdef CONFIG_TR
3271                         card->dev = alloc_trdev(0);
3272 #endif
3273                         if (!card->dev)
3274                                 return -ENODEV;
3275                         card->dev->netdev_ops = &qeth_l3_netdev_ops;
3276                 } else {
3277                         card->dev = alloc_etherdev(0);
3278                         if (!card->dev)
3279                                 return -ENODEV;
3280                         card->dev->netdev_ops = &qeth_l3_osa_netdev_ops;
3281
3282                         /*IPv6 address autoconfiguration stuff*/
3283                         qeth_l3_get_unique_id(card);
3284                         if (!(card->info.unique_id & UNIQUE_ID_NOT_BY_CARD))
3285                                 card->dev->dev_id = card->info.unique_id &
3286                                                          0xffff;
3287                         if (!card->info.guestlan) {
3288                                 card->dev->hw_features = NETIF_F_SG |
3289                                         NETIF_F_RXCSUM | NETIF_F_IP_CSUM |
3290                                         NETIF_F_TSO;
3291                                 card->dev->features = NETIF_F_RXCSUM;
3292                         }
3293                 }
3294         } else if (card->info.type == QETH_CARD_TYPE_IQD) {
3295                 card->dev = alloc_netdev(0, "hsi%d", ether_setup);
3296                 if (!card->dev)
3297                         return -ENODEV;
3298                 card->dev->flags |= IFF_NOARP;
3299                 card->dev->netdev_ops = &qeth_l3_netdev_ops;
3300                 qeth_l3_iqd_read_initial_mac(card);
3301         } else
3302                 return -ENODEV;
3303
3304         card->dev->ml_priv = card;
3305         card->dev->watchdog_timeo = QETH_TX_TIMEOUT;
3306         card->dev->mtu = card->info.initial_mtu;
3307         SET_ETHTOOL_OPS(card->dev, &qeth_l3_ethtool_ops);
3308         card->dev->features |=  NETIF_F_HW_VLAN_TX |
3309                                 NETIF_F_HW_VLAN_RX |
3310                                 NETIF_F_HW_VLAN_FILTER;
3311         card->dev->priv_flags &= ~IFF_XMIT_DST_RELEASE;
3312         card->dev->gso_max_size = 15 * PAGE_SIZE;
3313
3314         SET_NETDEV_DEV(card->dev, &card->gdev->dev);
3315         netif_napi_add(card->dev, &card->napi, qeth_l3_poll, QETH_NAPI_WEIGHT);
3316         return register_netdev(card->dev);
3317 }
3318
3319 static int qeth_l3_probe_device(struct ccwgroup_device *gdev)
3320 {
3321         struct qeth_card *card = dev_get_drvdata(&gdev->dev);
3322
3323         qeth_l3_create_device_attributes(&gdev->dev);
3324         card->options.layer2 = 0;
3325         card->info.hwtrap = 0;
3326         card->discipline.start_poll = qeth_qdio_start_poll;
3327         card->discipline.input_handler = (qdio_handler_t *)
3328                 qeth_qdio_input_handler;
3329         card->discipline.output_handler = (qdio_handler_t *)
3330                 qeth_qdio_output_handler;
3331         card->discipline.recover = qeth_l3_recover;
3332         return 0;
3333 }
3334
3335 static void qeth_l3_remove_device(struct ccwgroup_device *cgdev)
3336 {
3337         struct qeth_card *card = dev_get_drvdata(&cgdev->dev);
3338
3339         qeth_l3_remove_device_attributes(&cgdev->dev);
3340
3341         qeth_set_allowed_threads(card, 0, 1);
3342         wait_event(card->wait_q, qeth_threads_running(card, 0xffffffff) == 0);
3343
3344         if (cgdev->state == CCWGROUP_ONLINE)
3345                 qeth_l3_set_offline(cgdev);
3346
3347         if (card->dev) {
3348                 unregister_netdev(card->dev);
3349                 card->dev = NULL;
3350         }
3351
3352         qeth_l3_clear_ip_list(card, 0);
3353         qeth_l3_clear_ipato_list(card);
3354         return;
3355 }
3356
3357 static int __qeth_l3_set_online(struct ccwgroup_device *gdev, int recovery_mode)
3358 {
3359         struct qeth_card *card = dev_get_drvdata(&gdev->dev);
3360         int rc = 0;
3361         enum qeth_card_states recover_flag;
3362
3363         BUG_ON(!card);
3364         mutex_lock(&card->discipline_mutex);
3365         mutex_lock(&card->conf_mutex);
3366         QETH_DBF_TEXT(SETUP, 2, "setonlin");
3367         QETH_DBF_HEX(SETUP, 2, &card, sizeof(void *));
3368
3369         recover_flag = card->state;
3370         rc = qeth_core_hardsetup_card(card);
3371         if (rc) {
3372                 QETH_DBF_TEXT_(SETUP, 2, "2err%d", rc);
3373                 rc = -ENODEV;
3374                 goto out_remove;
3375         }
3376
3377         if (!card->dev && qeth_l3_setup_netdev(card)) {
3378                 rc = -ENODEV;
3379                 goto out_remove;
3380         }
3381
3382         if (qeth_is_diagass_supported(card, QETH_DIAGS_CMD_TRAP)) {
3383                 if (card->info.hwtrap &&
3384                     qeth_hw_trap(card, QETH_DIAGS_TRAP_ARM))
3385                         card->info.hwtrap = 0;
3386         } else
3387                 card->info.hwtrap = 0;
3388
3389         card->state = CARD_STATE_HARDSETUP;
3390         memset(&card->rx, 0, sizeof(struct qeth_rx));
3391         qeth_print_status_message(card);
3392
3393         /* softsetup */
3394         QETH_DBF_TEXT(SETUP, 2, "softsetp");
3395
3396         rc = qeth_send_startlan(card);
3397         if (rc) {
3398                 QETH_DBF_TEXT_(SETUP, 2, "1err%d", rc);
3399                 if (rc == 0xe080) {
3400                         dev_warn(&card->gdev->dev,
3401                                 "The LAN is offline\n");
3402                         card->lan_online = 0;
3403                         goto contin;
3404                 }
3405                 rc = -ENODEV;
3406                 goto out_remove;
3407         } else
3408                 card->lan_online = 1;
3409
3410 contin:
3411         rc = qeth_l3_setadapter_parms(card);
3412         if (rc)
3413                 QETH_DBF_TEXT_(SETUP, 2, "2err%d", rc);
3414         if (!card->options.sniffer) {
3415                 rc = qeth_l3_start_ipassists(card);
3416                 if (rc)
3417                         QETH_DBF_TEXT_(SETUP, 2, "3err%d", rc);
3418                 rc = qeth_l3_setrouting_v4(card);
3419                 if (rc)
3420                         QETH_DBF_TEXT_(SETUP, 2, "4err%d", rc);
3421                 rc = qeth_l3_setrouting_v6(card);
3422                 if (rc)
3423                         QETH_DBF_TEXT_(SETUP, 2, "5err%d", rc);
3424         }
3425         netif_tx_disable(card->dev);
3426
3427         rc = qeth_init_qdio_queues(card);
3428         if (rc) {
3429                 QETH_DBF_TEXT_(SETUP, 2, "6err%d", rc);
3430                 rc = -ENODEV;
3431                 goto out_remove;
3432         }
3433         card->state = CARD_STATE_SOFTSETUP;
3434
3435         qeth_set_allowed_threads(card, 0xffffffff, 0);
3436         qeth_l3_set_ip_addr_list(card);
3437         if (card->lan_online)
3438                 netif_carrier_on(card->dev);
3439         else
3440                 netif_carrier_off(card->dev);
3441         if (recover_flag == CARD_STATE_RECOVER) {
3442                 if (recovery_mode)
3443                         __qeth_l3_open(card->dev);
3444                 else {
3445                         rtnl_lock();
3446                         dev_open(card->dev);
3447                         rtnl_unlock();
3448                 }
3449                 qeth_l3_set_multicast_list(card->dev);
3450         }
3451         /* let user_space know that device is online */
3452         kobject_uevent(&gdev->dev.kobj, KOBJ_CHANGE);
3453         mutex_unlock(&card->conf_mutex);
3454         mutex_unlock(&card->discipline_mutex);
3455         return 0;
3456 out_remove:
3457         qeth_l3_stop_card(card, 0);
3458         ccw_device_set_offline(CARD_DDEV(card));
3459         ccw_device_set_offline(CARD_WDEV(card));
3460         ccw_device_set_offline(CARD_RDEV(card));
3461         if (recover_flag == CARD_STATE_RECOVER)
3462                 card->state = CARD_STATE_RECOVER;
3463         else
3464                 card->state = CARD_STATE_DOWN;
3465         mutex_unlock(&card->conf_mutex);
3466         mutex_unlock(&card->discipline_mutex);
3467         return rc;
3468 }
3469
3470 static int qeth_l3_set_online(struct ccwgroup_device *gdev)
3471 {
3472         return __qeth_l3_set_online(gdev, 0);
3473 }
3474
3475 static int __qeth_l3_set_offline(struct ccwgroup_device *cgdev,
3476                         int recovery_mode)
3477 {
3478         struct qeth_card *card = dev_get_drvdata(&cgdev->dev);
3479         int rc = 0, rc2 = 0, rc3 = 0;
3480         enum qeth_card_states recover_flag;
3481
3482         mutex_lock(&card->discipline_mutex);
3483         mutex_lock(&card->conf_mutex);
3484         QETH_DBF_TEXT(SETUP, 3, "setoffl");
3485         QETH_DBF_HEX(SETUP, 3, &card, sizeof(void *));
3486
3487         if (card->dev && netif_carrier_ok(card->dev))
3488                 netif_carrier_off(card->dev);
3489         recover_flag = card->state;
3490         if ((!recovery_mode && card->info.hwtrap) || card->info.hwtrap == 2) {
3491                 qeth_hw_trap(card, QETH_DIAGS_TRAP_DISARM);
3492                 card->info.hwtrap = 1;
3493         }
3494         qeth_l3_stop_card(card, recovery_mode);
3495         rc  = ccw_device_set_offline(CARD_DDEV(card));
3496         rc2 = ccw_device_set_offline(CARD_WDEV(card));
3497         rc3 = ccw_device_set_offline(CARD_RDEV(card));
3498         if (!rc)
3499                 rc = (rc2) ? rc2 : rc3;
3500         if (rc)
3501                 QETH_DBF_TEXT_(SETUP, 2, "1err%d", rc);
3502         if (recover_flag == CARD_STATE_UP)
3503                 card->state = CARD_STATE_RECOVER;
3504         /* let user_space know that device is offline */
3505         kobject_uevent(&cgdev->dev.kobj, KOBJ_CHANGE);
3506         mutex_unlock(&card->conf_mutex);
3507         mutex_unlock(&card->discipline_mutex);
3508         return 0;
3509 }
3510
3511 static int qeth_l3_set_offline(struct ccwgroup_device *cgdev)
3512 {
3513         return __qeth_l3_set_offline(cgdev, 0);
3514 }
3515
3516 static int qeth_l3_recover(void *ptr)
3517 {
3518         struct qeth_card *card;
3519         int rc = 0;
3520
3521         card = (struct qeth_card *) ptr;
3522         QETH_CARD_TEXT(card, 2, "recover1");
3523         QETH_CARD_HEX(card, 2, &card, sizeof(void *));
3524         if (!qeth_do_run_thread(card, QETH_RECOVER_THREAD))
3525                 return 0;
3526         QETH_CARD_TEXT(card, 2, "recover2");
3527         dev_warn(&card->gdev->dev,
3528                 "A recovery process has been started for the device\n");
3529         __qeth_l3_set_offline(card->gdev, 1);
3530         rc = __qeth_l3_set_online(card->gdev, 1);
3531         if (!rc)
3532                 dev_info(&card->gdev->dev,
3533                         "Device successfully recovered!\n");
3534         else {
3535                 rtnl_lock();
3536                 dev_close(card->dev);
3537                 rtnl_unlock();
3538                 dev_warn(&card->gdev->dev, "The qeth device driver "
3539                         "failed to recover an error on the device\n");
3540         }
3541         qeth_clear_thread_start_bit(card, QETH_RECOVER_THREAD);
3542         qeth_clear_thread_running_bit(card, QETH_RECOVER_THREAD);
3543         return 0;
3544 }
3545
3546 static void qeth_l3_shutdown(struct ccwgroup_device *gdev)
3547 {
3548         struct qeth_card *card = dev_get_drvdata(&gdev->dev);
3549         if ((gdev->state == CCWGROUP_ONLINE) && card->info.hwtrap)
3550                 qeth_hw_trap(card, QETH_DIAGS_TRAP_DISARM);
3551         qeth_qdio_clear_card(card, 0);
3552         qeth_clear_qdio_buffers(card);
3553 }
3554
3555 static int qeth_l3_pm_suspend(struct ccwgroup_device *gdev)
3556 {
3557         struct qeth_card *card = dev_get_drvdata(&gdev->dev);
3558
3559         if (card->dev)
3560                 netif_device_detach(card->dev);
3561         qeth_set_allowed_threads(card, 0, 1);
3562         wait_event(card->wait_q, qeth_threads_running(card, 0xffffffff) == 0);
3563         if (gdev->state == CCWGROUP_OFFLINE)
3564                 return 0;
3565         if (card->state == CARD_STATE_UP) {
3566                 if (card->info.hwtrap)
3567                         qeth_hw_trap(card, QETH_DIAGS_TRAP_DISARM);
3568                 __qeth_l3_set_offline(card->gdev, 1);
3569         } else
3570                 __qeth_l3_set_offline(card->gdev, 0);
3571         return 0;
3572 }
3573
3574 static int qeth_l3_pm_resume(struct ccwgroup_device *gdev)
3575 {
3576         struct qeth_card *card = dev_get_drvdata(&gdev->dev);
3577         int rc = 0;
3578
3579         if (gdev->state == CCWGROUP_OFFLINE)
3580                 goto out;
3581
3582         if (card->state == CARD_STATE_RECOVER) {
3583                 rc = __qeth_l3_set_online(card->gdev, 1);
3584                 if (rc) {
3585                         rtnl_lock();
3586                         dev_close(card->dev);
3587                         rtnl_unlock();
3588                 }
3589         } else
3590                 rc = __qeth_l3_set_online(card->gdev, 0);
3591 out:
3592         qeth_set_allowed_threads(card, 0xffffffff, 0);
3593         if (card->dev)
3594                 netif_device_attach(card->dev);
3595         if (rc)
3596                 dev_warn(&card->gdev->dev, "The qeth device driver "
3597                         "failed to recover an error on the device\n");
3598         return rc;
3599 }
3600
3601 struct ccwgroup_driver qeth_l3_ccwgroup_driver = {
3602         .probe = qeth_l3_probe_device,
3603         .remove = qeth_l3_remove_device,
3604         .set_online = qeth_l3_set_online,
3605         .set_offline = qeth_l3_set_offline,
3606         .shutdown = qeth_l3_shutdown,
3607         .freeze = qeth_l3_pm_suspend,
3608         .thaw = qeth_l3_pm_resume,
3609         .restore = qeth_l3_pm_resume,
3610 };
3611 EXPORT_SYMBOL_GPL(qeth_l3_ccwgroup_driver);
3612
3613 static int qeth_l3_ip_event(struct notifier_block *this,
3614                             unsigned long event, void *ptr)
3615 {
3616         struct in_ifaddr *ifa = (struct in_ifaddr *)ptr;
3617         struct net_device *dev = (struct net_device *)ifa->ifa_dev->dev;
3618         struct qeth_ipaddr *addr;
3619         struct qeth_card *card;
3620
3621         if (dev_net(dev) != &init_net)
3622                 return NOTIFY_DONE;
3623
3624         card = qeth_l3_get_card_from_dev(dev);
3625         QETH_CARD_TEXT(card, 3, "ipevent");
3626         if (!card)
3627                 return NOTIFY_DONE;
3628
3629         addr = qeth_l3_get_addr_buffer(QETH_PROT_IPV4);
3630         if (addr != NULL) {
3631                 addr->u.a4.addr = ifa->ifa_address;
3632                 addr->u.a4.mask = ifa->ifa_mask;
3633                 addr->type = QETH_IP_TYPE_NORMAL;
3634         } else
3635                 goto out;
3636
3637         switch (event) {
3638         case NETDEV_UP:
3639                 if (!qeth_l3_add_ip(card, addr))
3640                         kfree(addr);
3641                 break;
3642         case NETDEV_DOWN:
3643                 if (!qeth_l3_delete_ip(card, addr))
3644                         kfree(addr);
3645                 break;
3646         default:
3647                 break;
3648         }
3649         qeth_l3_set_ip_addr_list(card);
3650 out:
3651         return NOTIFY_DONE;
3652 }
3653
3654 static struct notifier_block qeth_l3_ip_notifier = {
3655         qeth_l3_ip_event,
3656         NULL,
3657 };
3658
3659 #ifdef CONFIG_QETH_IPV6
3660 /**
3661  * IPv6 event handler
3662  */
3663 static int qeth_l3_ip6_event(struct notifier_block *this,
3664                              unsigned long event, void *ptr)
3665 {
3666         struct inet6_ifaddr *ifa = (struct inet6_ifaddr *)ptr;
3667         struct net_device *dev = (struct net_device *)ifa->idev->dev;
3668         struct qeth_ipaddr *addr;
3669         struct qeth_card *card;
3670
3671
3672         card = qeth_l3_get_card_from_dev(dev);
3673         if (!card)
3674                 return NOTIFY_DONE;
3675         QETH_CARD_TEXT(card, 3, "ip6event");
3676         if (!qeth_is_supported(card, IPA_IPV6))
3677                 return NOTIFY_DONE;
3678
3679         addr = qeth_l3_get_addr_buffer(QETH_PROT_IPV6);
3680         if (addr != NULL) {
3681                 memcpy(&addr->u.a6.addr, &ifa->addr, sizeof(struct in6_addr));
3682                 addr->u.a6.pfxlen = ifa->prefix_len;
3683                 addr->type = QETH_IP_TYPE_NORMAL;
3684         } else
3685                 goto out;
3686
3687         switch (event) {
3688         case NETDEV_UP:
3689                 if (!qeth_l3_add_ip(card, addr))
3690                         kfree(addr);
3691                 break;
3692         case NETDEV_DOWN:
3693                 if (!qeth_l3_delete_ip(card, addr))
3694                         kfree(addr);
3695                 break;
3696         default:
3697                 break;
3698         }
3699         qeth_l3_set_ip_addr_list(card);
3700 out:
3701         return NOTIFY_DONE;
3702 }
3703
3704 static struct notifier_block qeth_l3_ip6_notifier = {
3705         qeth_l3_ip6_event,
3706         NULL,
3707 };
3708 #endif
3709
3710 static int qeth_l3_register_notifiers(void)
3711 {
3712         int rc;
3713
3714         QETH_DBF_TEXT(SETUP, 5, "regnotif");
3715         rc = register_inetaddr_notifier(&qeth_l3_ip_notifier);
3716         if (rc)
3717                 return rc;
3718 #ifdef CONFIG_QETH_IPV6
3719         rc = register_inet6addr_notifier(&qeth_l3_ip6_notifier);
3720         if (rc) {
3721                 unregister_inetaddr_notifier(&qeth_l3_ip_notifier);
3722                 return rc;
3723         }
3724 #else
3725         pr_warning("There is no IPv6 support for the layer 3 discipline\n");
3726 #endif
3727         return 0;
3728 }
3729
3730 static void qeth_l3_unregister_notifiers(void)
3731 {
3732
3733         QETH_DBF_TEXT(SETUP, 5, "unregnot");
3734         BUG_ON(unregister_inetaddr_notifier(&qeth_l3_ip_notifier));
3735 #ifdef CONFIG_QETH_IPV6
3736         BUG_ON(unregister_inet6addr_notifier(&qeth_l3_ip6_notifier));
3737 #endif /* QETH_IPV6 */
3738 }
3739
3740 static int __init qeth_l3_init(void)
3741 {
3742         int rc = 0;
3743
3744         pr_info("register layer 3 discipline\n");
3745         rc = qeth_l3_register_notifiers();
3746         return rc;
3747 }
3748
3749 static void __exit qeth_l3_exit(void)
3750 {
3751         qeth_l3_unregister_notifiers();
3752         pr_info("unregister layer 3 discipline\n");
3753 }
3754
3755 module_init(qeth_l3_init);
3756 module_exit(qeth_l3_exit);
3757 MODULE_AUTHOR("Frank Blaschka <frank.blaschka@de.ibm.com>");
3758 MODULE_DESCRIPTION("qeth layer 3 discipline");
3759 MODULE_LICENSE("GPL");