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 int qeth_l3_set_large_send(struct qeth_card *card,
  47                 enum qeth_large_send_types type)
  48 {
  49         int rc = 0;
  50
  51         card->options.large_send = type;
  52         if (card->dev == NULL)
  53                 return 0;
  54
  55         if (card->options.large_send == QETH_LARGE_SEND_TSO) {
  56                 if (qeth_is_supported(card, IPA_OUTBOUND_TSO)) {
  57                         card->dev->features |= NETIF_F_TSO | NETIF_F_SG |
  58                                         NETIF_F_IP_CSUM;
  59                 } else {
  60                         card->dev->features &= ~(NETIF_F_TSO | NETIF_F_SG |
  61                                         NETIF_F_IP_CSUM);
  62                         card->options.large_send = QETH_LARGE_SEND_NO;
  63                         rc = -EOPNOTSUPP;
  64                 }
  65         } else {
  66                 card->dev->features &= ~(NETIF_F_TSO | NETIF_F_SG |
  67                                         NETIF_F_IP_CSUM);
  68                 card->options.large_send = QETH_LARGE_SEND_NO;
  69         }
  70         return rc;
  71 }
  72
  73 static int qeth_l3_isxdigit(char *buf)
  74 {
  75         while (*buf) {
  76                 if (!isxdigit(*buf++))
  77                         return 0;
  78         }
  79         return 1;
  80 }
  81
  82 void qeth_l3_ipaddr4_to_string(const __u8 *addr, char *buf)
  83 {
  84         sprintf(buf, "%i.%i.%i.%i", addr[0], addr[1], addr[2], addr[3]);
  85 }
  86
  87 int qeth_l3_string_to_ipaddr4(const char *buf, __u8 *addr)
  88 {
  89         int count = 0, rc = 0;
  90         int in[4];
  91         char c;
  92
  93         rc = sscanf(buf, "%u.%u.%u.%u%c",
  94                     &in[0], &in[1], &in[2], &in[3], &c);
  95         if (rc != 4 && (rc != 5 || c != '\n'))
  96                 return -EINVAL;
  97         for (count = 0; count < 4; count++) {
  98                 if (in[count] > 255)
  99                         return -EINVAL;
 100                 addr[count] = in[count];
 101         }
 102         return 0;
 103 }
 104
 105 void qeth_l3_ipaddr6_to_string(const __u8 *addr, char *buf)
 106 {
 107         sprintf(buf, "%pI6", addr);
 108 }
 109
 110 int qeth_l3_string_to_ipaddr6(const char *buf, __u8 *addr)
 111 {
 112         const char *end, *end_tmp, *start;
 113         __u16 *in;
 114         char num[5];
 115         int num2, cnt, out, found, save_cnt;
 116         unsigned short in_tmp[8] = {0, };
 117
 118         cnt = out = found = save_cnt = num2 = 0;
 119         end = start = buf;
 120         in = (__u16 *) addr;
 121         memset(in, 0, 16);
 122         while (*end) {
 123                 end = strchr(start, ':');
 124                 if (end == NULL) {
 125                         end = buf + strlen(buf);
 126                         end_tmp = strchr(start, '\n');
 127                         if (end_tmp != NULL)
 128                                 end = end_tmp;
 129                         out = 1;
 130                 }
 131                 if ((end - start)) {
 132                         memset(num, 0, 5);
 133                         if ((end - start) > 4)
 134                                 return -EINVAL;
 135                         memcpy(num, start, end - start);
 136                         if (!qeth_l3_isxdigit(num))
 137                                 return -EINVAL;
 138                         sscanf(start, "%x", &num2);
 139                         if (found)
 140                                 in_tmp[save_cnt++] = num2;
 141                         else
 142                                 in[cnt++] = num2;
 143                         if (out)
 144                                 break;
 145                 } else {
 146                         if (found)
 147                                 return -EINVAL;
 148                         found = 1;
 149                 }
 150                 start = ++end;
 151         }
 152         if (cnt + save_cnt > 8)
 153                 return -EINVAL;
 154         cnt = 7;
 155         while (save_cnt)
 156                 in[cnt--] = in_tmp[--save_cnt];
 157         return 0;
 158 }
 159
 160 void qeth_l3_ipaddr_to_string(enum qeth_prot_versions proto, const __u8 *addr,
 161                                 char *buf)
 162 {
 163         if (proto == QETH_PROT_IPV4)
 164                 qeth_l3_ipaddr4_to_string(addr, buf);
 165         else if (proto == QETH_PROT_IPV6)
 166                 qeth_l3_ipaddr6_to_string(addr, buf);
 167 }
 168
 169 int qeth_l3_string_to_ipaddr(const char *buf, enum qeth_prot_versions proto,
 170                                 __u8 *addr)
 171 {
 172         if (proto == QETH_PROT_IPV4)
 173                 return qeth_l3_string_to_ipaddr4(buf, addr);
 174         else if (proto == QETH_PROT_IPV6)
 175                 return qeth_l3_string_to_ipaddr6(buf, addr);
 176         else
 177                 return -EINVAL;
 178 }
 179
 180 static void qeth_l3_convert_addr_to_bits(u8 *addr, u8 *bits, int len)
 181 {
 182         int i, j;
 183         u8 octet;
 184
 185         for (i = 0; i < len; ++i) {
 186                 octet = addr[i];
 187                 for (j = 7; j >= 0; --j) {
 188                         bits[i*8 + j] = octet & 1;
 189                         octet >>= 1;
 190                 }
 191         }
 192 }
 193
 194 int qeth_l3_is_addr_covered_by_ipato(struct qeth_card *card,
 195                                                 struct qeth_ipaddr *addr)
 196 {
 197         struct qeth_ipato_entry *ipatoe;
 198         u8 addr_bits[128] = {0, };
 199         u8 ipatoe_bits[128] = {0, };
 200         int rc = 0;
 201
 202         if (!card->ipato.enabled)
 203                 return 0;
 204
 205         qeth_l3_convert_addr_to_bits((u8 *) &addr->u, addr_bits,
 206                                   (addr->proto == QETH_PROT_IPV4)? 4:16);
 207         list_for_each_entry(ipatoe, &card->ipato.entries, entry) {
 208                 if (addr->proto != ipatoe->proto)
 209                         continue;
 210                 qeth_l3_convert_addr_to_bits(ipatoe->addr, ipatoe_bits,
 211                                           (ipatoe->proto == QETH_PROT_IPV4) ?
 212                                           4 : 16);
 213                 if (addr->proto == QETH_PROT_IPV4)
 214                         rc = !memcmp(addr_bits, ipatoe_bits,
 215                                      min(32, ipatoe->mask_bits));
 216                 else
 217                         rc = !memcmp(addr_bits, ipatoe_bits,
 218                                      min(128, ipatoe->mask_bits));
 219                 if (rc)
 220                         break;
 221         }
 222         /* invert? */
 223         if ((addr->proto == QETH_PROT_IPV4) && card->ipato.invert4)
 224                 rc = !rc;
 225         else if ((addr->proto == QETH_PROT_IPV6) && card->ipato.invert6)
 226                 rc = !rc;
 227
 228         return rc;
 229 }
 230
 231 /*
 232  * Add IP to be added to todo list. If there is already an "add todo"
 233  * in this list we just incremenent the reference count.
 234  * Returns 0 if we  just incremented reference count.
 235  */
 236 static int __qeth_l3_insert_ip_todo(struct qeth_card *card,
 237                                         struct qeth_ipaddr *addr, int add)
 238 {
 239         struct qeth_ipaddr *tmp, *t;
 240         int found = 0;
 241
 242         if (card->options.sniffer)
 243                 return 0;
 244         list_for_each_entry_safe(tmp, t, card->ip_tbd_list, entry) {
 245                 if ((addr->type == QETH_IP_TYPE_DEL_ALL_MC) &&
 246                     (tmp->type == QETH_IP_TYPE_DEL_ALL_MC))
 247                         return 0;
 248                 if ((tmp->proto        == QETH_PROT_IPV4)     &&
 249                     (addr->proto       == QETH_PROT_IPV4)     &&
 250                     (tmp->type         == addr->type)         &&
 251                     (tmp->is_multicast == addr->is_multicast) &&
 252                     (tmp->u.a4.addr    == addr->u.a4.addr)    &&
 253                     (tmp->u.a4.mask    == addr->u.a4.mask)) {
 254                         found = 1;
 255                         break;
 256                 }
 257                 if ((tmp->proto        == QETH_PROT_IPV6)      &&
 258                     (addr->proto       == QETH_PROT_IPV6)      &&
 259                     (tmp->type         == addr->type)          &&
 260                     (tmp->is_multicast == addr->is_multicast)  &&
 261                     (tmp->u.a6.pfxlen  == addr->u.a6.pfxlen)   &&
 262                     (memcmp(&tmp->u.a6.addr, &addr->u.a6.addr,
 263                             sizeof(struct in6_addr)) == 0)) {
 264                         found = 1;
 265                         break;
 266                 }
 267         }
 268         if (found) {
 269                 if (addr->users != 0)
 270                         tmp->users += addr->users;
 271                 else
 272                         tmp->users += add ? 1 : -1;
 273                 if (tmp->users == 0) {
 274                         list_del(&tmp->entry);
 275                         kfree(tmp);
 276                 }
 277                 return 0;
 278         } else {
 279                 if (addr->type == QETH_IP_TYPE_DEL_ALL_MC)
 280                         list_add(&addr->entry, card->ip_tbd_list);
 281                 else {
 282                         if (addr->users == 0)
 283                                 addr->users += add ? 1 : -1;
 284                         if (add && (addr->type == QETH_IP_TYPE_NORMAL) &&
 285                             qeth_l3_is_addr_covered_by_ipato(card, addr)) {
 286                                 QETH_CARD_TEXT(card, 2, "tkovaddr");
 287                                 addr->set_flags |= QETH_IPA_SETIP_TAKEOVER_FLAG;
 288                         }
 289                         list_add_tail(&addr->entry, card->ip_tbd_list);
 290                 }
 291                 return 1;
 292         }
 293 }
 294
 295 static int qeth_l3_delete_ip(struct qeth_card *card, struct qeth_ipaddr *addr)
 296 {
 297         unsigned long flags;
 298         int rc = 0;
 299
 300         QETH_CARD_TEXT(card, 4, "delip");
 301
 302         if (addr->proto == QETH_PROT_IPV4)
 303                 QETH_CARD_HEX(card, 4, &addr->u.a4.addr, 4);
 304         else {
 305                 QETH_CARD_HEX(card, 4, &addr->u.a6.addr, 8);
 306                 QETH_CARD_HEX(card, 4, ((char *)&addr->u.a6.addr) + 8, 8);
 307         }
 308         spin_lock_irqsave(&card->ip_lock, flags);
 309         rc = __qeth_l3_insert_ip_todo(card, addr, 0);
 310         spin_unlock_irqrestore(&card->ip_lock, flags);
 311         return rc;
 312 }
 313
 314 static int qeth_l3_add_ip(struct qeth_card *card, struct qeth_ipaddr *addr)
 315 {
 316         unsigned long flags;
 317         int rc = 0;
 318
 319         QETH_CARD_TEXT(card, 4, "addip");
 320         if (addr->proto == QETH_PROT_IPV4)
 321                 QETH_CARD_HEX(card, 4, &addr->u.a4.addr, 4);
 322         else {
 323                 QETH_CARD_HEX(card, 4, &addr->u.a6.addr, 8);
 324                 QETH_CARD_HEX(card, 4, ((char *)&addr->u.a6.addr) + 8, 8);
 325         }
 326         spin_lock_irqsave(&card->ip_lock, flags);
 327         rc = __qeth_l3_insert_ip_todo(card, addr, 1);
 328         spin_unlock_irqrestore(&card->ip_lock, flags);
 329         return rc;
 330 }
 331
 332
 333 static struct qeth_ipaddr *qeth_l3_get_addr_buffer(
 334                                 enum qeth_prot_versions prot)
 335 {
 336         struct qeth_ipaddr *addr;
 337
 338         addr = kzalloc(sizeof(struct qeth_ipaddr), GFP_ATOMIC);
 339         if (addr == NULL) {
 340                 return NULL;
 341         }
 342         addr->type = QETH_IP_TYPE_NORMAL;
 343         addr->proto = prot;
 344         return addr;
 345 }
 346
 347 static void qeth_l3_delete_mc_addresses(struct qeth_card *card)
 348 {
 349         struct qeth_ipaddr *iptodo;
 350         unsigned long flags;
 351
 352         QETH_CARD_TEXT(card, 4, "delmc");
 353         iptodo = qeth_l3_get_addr_buffer(QETH_PROT_IPV4);
 354         if (!iptodo) {
 355                 QETH_CARD_TEXT(card, 2, "dmcnomem");
 356                 return;
 357         }
 358         iptodo->type = QETH_IP_TYPE_DEL_ALL_MC;
 359         spin_lock_irqsave(&card->ip_lock, flags);
 360         if (!__qeth_l3_insert_ip_todo(card, iptodo, 0))
 361                 kfree(iptodo);
 362         spin_unlock_irqrestore(&card->ip_lock, flags);
 363 }
 364
 365 /*
 366  * Add/remove address to/from card's ip list, i.e. try to add or remove
 367  * reference to/from an IP address that is already registered on the card.
 368  * Returns:
 369  *      0  address was on card and its reference count has been adjusted,
 370  *         but is still > 0, so nothing has to be done
 371  *         also returns 0 if card was not on card and the todo was to delete
 372  *         the address -> there is also nothing to be done
 373  *      1  address was not on card and the todo is to add it to the card's ip
 374  *         list
 375  *      -1 address was on card and its reference count has been decremented
 376  *         to <= 0 by the todo -> address must be removed from card
 377  */
 378 static int __qeth_l3_ref_ip_on_card(struct qeth_card *card,
 379                 struct qeth_ipaddr *todo, struct qeth_ipaddr **__addr)
 380 {
 381         struct qeth_ipaddr *addr;
 382         int found = 0;
 383
 384         list_for_each_entry(addr, &card->ip_list, entry) {
 385                 if ((addr->proto == QETH_PROT_IPV4) &&
 386                     (todo->proto == QETH_PROT_IPV4) &&
 387                     (addr->type == todo->type) &&
 388                     (addr->u.a4.addr == todo->u.a4.addr) &&
 389                     (addr->u.a4.mask == todo->u.a4.mask)) {
 390                         found = 1;
 391                         break;
 392                 }
 393                 if ((addr->proto == QETH_PROT_IPV6) &&
 394                     (todo->proto == QETH_PROT_IPV6) &&
 395                     (addr->type == todo->type) &&
 396                     (addr->u.a6.pfxlen == todo->u.a6.pfxlen) &&
 397                     (memcmp(&addr->u.a6.addr, &todo->u.a6.addr,
 398                             sizeof(struct in6_addr)) == 0)) {
 399                         found = 1;
 400                         break;
 401                 }
 402         }
 403         if (found) {
 404                 addr->users += todo->users;
 405                 if (addr->users <= 0) {
 406                         *__addr = addr;
 407                         return -1;
 408                 } else {
 409                         /* for VIPA and RXIP limit refcount to 1 */
 410                         if (addr->type != QETH_IP_TYPE_NORMAL)
 411                                 addr->users = 1;
 412                         return 0;
 413                 }
 414         }
 415         if (todo->users > 0) {
 416                 /* for VIPA and RXIP limit refcount to 1 */
 417                 if (todo->type != QETH_IP_TYPE_NORMAL)
 418                         todo->users = 1;
 419                 return 1;
 420         } else
 421                 return 0;
 422 }
 423
 424 static void __qeth_l3_delete_all_mc(struct qeth_card *card,
 425                                         unsigned long *flags)
 426 {
 427         struct list_head fail_list;
 428         struct qeth_ipaddr *addr, *tmp;
 429         int rc;
 430
 431         INIT_LIST_HEAD(&fail_list);
 432 again:
 433         list_for_each_entry_safe(addr, tmp, &card->ip_list, entry) {
 434                 if (addr->is_multicast) {
 435                         list_del(&addr->entry);
 436                         spin_unlock_irqrestore(&card->ip_lock, *flags);
 437                         rc = qeth_l3_deregister_addr_entry(card, addr);
 438                         spin_lock_irqsave(&card->ip_lock, *flags);
 439                         if (!rc || (rc == IPA_RC_MC_ADDR_NOT_FOUND))
 440                                 kfree(addr);
 441                         else
 442                                 list_add_tail(&addr->entry, &fail_list);
 443                         goto again;
 444                 }
 445         }
 446         list_splice(&fail_list, &card->ip_list);
 447 }
 448
 449 static void qeth_l3_set_ip_addr_list(struct qeth_card *card)
 450 {
 451         struct list_head *tbd_list;
 452         struct qeth_ipaddr *todo, *addr;
 453         unsigned long flags;
 454         int rc;
 455
 456         QETH_CARD_TEXT(card, 2, "sdiplist");
 457         QETH_CARD_HEX(card, 2, &card, sizeof(void *));
 458
 459         if ((card->state != CARD_STATE_UP &&
 460              card->state != CARD_STATE_SOFTSETUP) || card->options.sniffer) {
 461                 return;
 462         }
 463
 464         spin_lock_irqsave(&card->ip_lock, flags);
 465         tbd_list = card->ip_tbd_list;
 466         card->ip_tbd_list = kmalloc(sizeof(struct list_head), GFP_ATOMIC);
 467         if (!card->ip_tbd_list) {
 468                 QETH_CARD_TEXT(card, 0, "silnomem");
 469                 card->ip_tbd_list = tbd_list;
 470                 spin_unlock_irqrestore(&card->ip_lock, flags);
 471                 return;
 472         } else
 473                 INIT_LIST_HEAD(card->ip_tbd_list);
 474
 475         while (!list_empty(tbd_list)) {
 476                 todo = list_entry(tbd_list->next, struct qeth_ipaddr, entry);
 477                 list_del(&todo->entry);
 478                 if (todo->type == QETH_IP_TYPE_DEL_ALL_MC) {
 479                         __qeth_l3_delete_all_mc(card, &flags);
 480                         kfree(todo);
 481                         continue;
 482                 }
 483                 rc = __qeth_l3_ref_ip_on_card(card, todo, &addr);
 484                 if (rc == 0) {
 485                         /* nothing to be done; only adjusted refcount */
 486                         kfree(todo);
 487                 } else if (rc == 1) {
 488                         /* new entry to be added to on-card list */
 489                         spin_unlock_irqrestore(&card->ip_lock, flags);
 490                         rc = qeth_l3_register_addr_entry(card, todo);
 491                         spin_lock_irqsave(&card->ip_lock, flags);
 492                         if (!rc || (rc == IPA_RC_LAN_OFFLINE))
 493                                 list_add_tail(&todo->entry, &card->ip_list);
 494                         else
 495                                 kfree(todo);
 496                 } else if (rc == -1) {
 497                         /* on-card entry to be removed */
 498                         list_del_init(&addr->entry);
 499                         spin_unlock_irqrestore(&card->ip_lock, flags);
 500                         rc = qeth_l3_deregister_addr_entry(card, addr);
 501                         spin_lock_irqsave(&card->ip_lock, flags);
 502                         if (!rc || (rc == IPA_RC_IP_ADDRESS_NOT_DEFINED))
 503                                 kfree(addr);
 504                         else
 505                                 list_add_tail(&addr->entry, &card->ip_list);
 506                         kfree(todo);
 507                 }
 508         }
 509         spin_unlock_irqrestore(&card->ip_lock, flags);
 510         kfree(tbd_list);
 511 }
 512
 513 static void qeth_l3_clear_ip_list(struct qeth_card *card, int clean,
 514                                         int recover)
 515 {
 516         struct qeth_ipaddr *addr, *tmp;
 517         unsigned long flags;
 518
 519         QETH_CARD_TEXT(card, 4, "clearip");
 520         if (recover && card->options.sniffer)
 521                 return;
 522         spin_lock_irqsave(&card->ip_lock, flags);
 523         /* clear todo list */
 524         list_for_each_entry_safe(addr, tmp, card->ip_tbd_list, entry) {
 525                 list_del(&addr->entry);
 526                 kfree(addr);
 527         }
 528
 529         while (!list_empty(&card->ip_list)) {
 530                 addr = list_entry(card->ip_list.next,
 531                                   struct qeth_ipaddr, entry);
 532                 list_del_init(&addr->entry);
 533                 if (clean) {
 534                         spin_unlock_irqrestore(&card->ip_lock, flags);
 535                         qeth_l3_deregister_addr_entry(card, addr);
 536                         spin_lock_irqsave(&card->ip_lock, flags);
 537                 }
 538                 if (!recover || addr->is_multicast) {
 539                         kfree(addr);
 540                         continue;
 541                 }
 542                 list_add_tail(&addr->entry, card->ip_tbd_list);
 543         }
 544         spin_unlock_irqrestore(&card->ip_lock, flags);
 545 }
 546
 547 static int qeth_l3_address_exists_in_list(struct list_head *list,
 548                 struct qeth_ipaddr *addr, int same_type)
 549 {
 550         struct qeth_ipaddr *tmp;
 551
 552         list_for_each_entry(tmp, list, entry) {
 553                 if ((tmp->proto == QETH_PROT_IPV4) &&
 554                     (addr->proto == QETH_PROT_IPV4) &&
 555                     ((same_type && (tmp->type == addr->type)) ||
 556                     (!same_type && (tmp->type != addr->type))) &&
 557                     (tmp->u.a4.addr == addr->u.a4.addr))
 558                         return 1;
 559
 560                 if ((tmp->proto == QETH_PROT_IPV6) &&
 561                     (addr->proto == QETH_PROT_IPV6) &&
 562                     ((same_type && (tmp->type == addr->type)) ||
 563                     (!same_type && (tmp->type != addr->type))) &&
 564                     (memcmp(&tmp->u.a6.addr, &addr->u.a6.addr,
 565                             sizeof(struct in6_addr)) == 0))
 566                         return 1;
 567
 568         }
 569         return 0;
 570 }
 571
 572 static int qeth_l3_send_setdelmc(struct qeth_card *card,
 573                         struct qeth_ipaddr *addr, int ipacmd)
 574 {
 575         int rc;
 576         struct qeth_cmd_buffer *iob;
 577         struct qeth_ipa_cmd *cmd;
 578
 579         QETH_CARD_TEXT(card, 4, "setdelmc");
 580
 581         iob = qeth_get_ipacmd_buffer(card, ipacmd, addr->proto);
 582         cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
 583         memcpy(&cmd->data.setdelipm.mac, addr->mac, OSA_ADDR_LEN);
 584         if (addr->proto == QETH_PROT_IPV6)
 585                 memcpy(cmd->data.setdelipm.ip6, &addr->u.a6.addr,
 586                        sizeof(struct in6_addr));
 587         else
 588                 memcpy(&cmd->data.setdelipm.ip4, &addr->u.a4.addr, 4);
 589
 590         rc = qeth_send_ipa_cmd(card, iob, NULL, NULL);
 591
 592         return rc;
 593 }
 594
 595 static void qeth_l3_fill_netmask(u8 *netmask, unsigned int len)
 596 {
 597         int i, j;
 598         for (i = 0; i < 16; i++) {
 599                 j = (len) - (i * 8);
 600                 if (j >= 8)
 601                         netmask[i] = 0xff;
 602                 else if (j > 0)
 603                         netmask[i] = (u8)(0xFF00 >> j);
 604                 else
 605                         netmask[i] = 0;
 606         }
 607 }
 608
 609 static int qeth_l3_send_setdelip(struct qeth_card *card,
 610                 struct qeth_ipaddr *addr, int ipacmd, unsigned int flags)
 611 {
 612         int rc;
 613         struct qeth_cmd_buffer *iob;
 614         struct qeth_ipa_cmd *cmd;
 615         __u8 netmask[16];
 616
 617         QETH_CARD_TEXT(card, 4, "setdelip");
 618         QETH_CARD_TEXT_(card, 4, "flags%02X", flags);
 619
 620         iob = qeth_get_ipacmd_buffer(card, ipacmd, addr->proto);
 621         cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
 622         if (addr->proto == QETH_PROT_IPV6) {
 623                 memcpy(cmd->data.setdelip6.ip_addr, &addr->u.a6.addr,
 624                        sizeof(struct in6_addr));
 625                 qeth_l3_fill_netmask(netmask, addr->u.a6.pfxlen);
 626                 memcpy(cmd->data.setdelip6.mask, netmask,
 627                        sizeof(struct in6_addr));
 628                 cmd->data.setdelip6.flags = flags;
 629         } else {
 630                 memcpy(cmd->data.setdelip4.ip_addr, &addr->u.a4.addr, 4);
 631                 memcpy(cmd->data.setdelip4.mask, &addr->u.a4.mask, 4);
 632                 cmd->data.setdelip4.flags = flags;
 633         }
 634
 635         rc = qeth_send_ipa_cmd(card, iob, NULL, NULL);
 636
 637         return rc;
 638 }
 639
 640 static int qeth_l3_send_setrouting(struct qeth_card *card,
 641         enum qeth_routing_types type, enum qeth_prot_versions prot)
 642 {
 643         int rc;
 644         struct qeth_ipa_cmd *cmd;
 645         struct qeth_cmd_buffer *iob;
 646
 647         QETH_CARD_TEXT(card, 4, "setroutg");
 648         iob = qeth_get_ipacmd_buffer(card, IPA_CMD_SETRTG, prot);
 649         cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
 650         cmd->data.setrtg.type = (type);
 651         rc = qeth_send_ipa_cmd(card, iob, NULL, NULL);
 652
 653         return rc;
 654 }
 655
 656 static void qeth_l3_correct_routing_type(struct qeth_card *card,
 657                 enum qeth_routing_types *type, enum qeth_prot_versions prot)
 658 {
 659         if (card->info.type == QETH_CARD_TYPE_IQD) {
 660                 switch (*type) {
 661                 case NO_ROUTER:
 662                 case PRIMARY_CONNECTOR:
 663                 case SECONDARY_CONNECTOR:
 664                 case MULTICAST_ROUTER:
 665                         return;
 666                 default:
 667                         goto out_inval;
 668                 }
 669         } else {
 670                 switch (*type) {
 671                 case NO_ROUTER:
 672                 case PRIMARY_ROUTER:
 673                 case SECONDARY_ROUTER:
 674                         return;
 675                 case MULTICAST_ROUTER:
 676                         if (qeth_is_ipafunc_supported(card, prot,
 677                                                       IPA_OSA_MC_ROUTER))
 678                                 return;
 679                 default:
 680                         goto out_inval;
 681                 }
 682         }
 683 out_inval:
 684         *type = NO_ROUTER;
 685 }
 686
 687 int qeth_l3_setrouting_v4(struct qeth_card *card)
 688 {
 689         int rc;
 690
 691         QETH_CARD_TEXT(card, 3, "setrtg4");
 692
 693         qeth_l3_correct_routing_type(card, &card->options.route4.type,
 694                                   QETH_PROT_IPV4);
 695
 696         rc = qeth_l3_send_setrouting(card, card->options.route4.type,
 697                                   QETH_PROT_IPV4);
 698         if (rc) {
 699                 card->options.route4.type = NO_ROUTER;
 700                 QETH_DBF_MESSAGE(2, "Error (0x%04x) while setting routing type"
 701                         " on %s. Type set to 'no router'.\n", rc,
 702                         QETH_CARD_IFNAME(card));
 703         }
 704         return rc;
 705 }
 706
 707 int qeth_l3_setrouting_v6(struct qeth_card *card)
 708 {
 709         int rc = 0;
 710
 711         QETH_CARD_TEXT(card, 3, "setrtg6");
 712 #ifdef CONFIG_QETH_IPV6
 713
 714         if (!qeth_is_supported(card, IPA_IPV6))
 715                 return 0;
 716         qeth_l3_correct_routing_type(card, &card->options.route6.type,
 717                                   QETH_PROT_IPV6);
 718
 719         rc = qeth_l3_send_setrouting(card, card->options.route6.type,
 720                                   QETH_PROT_IPV6);
 721         if (rc) {
 722                 card->options.route6.type = NO_ROUTER;
 723                 QETH_DBF_MESSAGE(2, "Error (0x%04x) while setting routing type"
 724                         " on %s. Type set to 'no router'.\n", rc,
 725                         QETH_CARD_IFNAME(card));
 726         }
 727 #endif
 728         return rc;
 729 }
 730
 731 /*
 732  * IP address takeover related functions
 733  */
 734 static void qeth_l3_clear_ipato_list(struct qeth_card *card)
 735 {
 736
 737         struct qeth_ipato_entry *ipatoe, *tmp;
 738         unsigned long flags;
 739
 740         spin_lock_irqsave(&card->ip_lock, flags);
 741         list_for_each_entry_safe(ipatoe, tmp, &card->ipato.entries, entry) {
 742                 list_del(&ipatoe->entry);
 743                 kfree(ipatoe);
 744         }
 745         spin_unlock_irqrestore(&card->ip_lock, flags);
 746 }
 747
 748 int qeth_l3_add_ipato_entry(struct qeth_card *card,
 749                                 struct qeth_ipato_entry *new)
 750 {
 751         struct qeth_ipato_entry *ipatoe;
 752         unsigned long flags;
 753         int rc = 0;
 754
 755         QETH_CARD_TEXT(card, 2, "addipato");
 756         spin_lock_irqsave(&card->ip_lock, flags);
 757         list_for_each_entry(ipatoe, &card->ipato.entries, entry) {
 758                 if (ipatoe->proto != new->proto)
 759                         continue;
 760                 if (!memcmp(ipatoe->addr, new->addr,
 761                             (ipatoe->proto == QETH_PROT_IPV4)? 4:16) &&
 762                     (ipatoe->mask_bits == new->mask_bits)) {
 763                         rc = -EEXIST;
 764                         break;
 765                 }
 766         }
 767         if (!rc)
 768                 list_add_tail(&new->entry, &card->ipato.entries);
 769
 770         spin_unlock_irqrestore(&card->ip_lock, flags);
 771         return rc;
 772 }
 773
 774 void qeth_l3_del_ipato_entry(struct qeth_card *card,
 775                 enum qeth_prot_versions proto, u8 *addr, int mask_bits)
 776 {
 777         struct qeth_ipato_entry *ipatoe, *tmp;
 778         unsigned long flags;
 779
 780         QETH_CARD_TEXT(card, 2, "delipato");
 781         spin_lock_irqsave(&card->ip_lock, flags);
 782         list_for_each_entry_safe(ipatoe, tmp, &card->ipato.entries, entry) {
 783                 if (ipatoe->proto != proto)
 784                         continue;
 785                 if (!memcmp(ipatoe->addr, addr,
 786                             (proto == QETH_PROT_IPV4)? 4:16) &&
 787                     (ipatoe->mask_bits == mask_bits)) {
 788                         list_del(&ipatoe->entry);
 789                         kfree(ipatoe);
 790                 }
 791         }
 792         spin_unlock_irqrestore(&card->ip_lock, flags);
 793 }
 794
 795 /*
 796  * VIPA related functions
 797  */
 798 int qeth_l3_add_vipa(struct qeth_card *card, enum qeth_prot_versions proto,
 799               const u8 *addr)
 800 {
 801         struct qeth_ipaddr *ipaddr;
 802         unsigned long flags;
 803         int rc = 0;
 804
 805         ipaddr = qeth_l3_get_addr_buffer(proto);
 806         if (ipaddr) {
 807                 if (proto == QETH_PROT_IPV4) {
 808                         QETH_CARD_TEXT(card, 2, "addvipa4");
 809                         memcpy(&ipaddr->u.a4.addr, addr, 4);
 810                         ipaddr->u.a4.mask = 0;
 811                 } else if (proto == QETH_PROT_IPV6) {
 812                         QETH_CARD_TEXT(card, 2, "addvipa6");
 813                         memcpy(&ipaddr->u.a6.addr, addr, 16);
 814                         ipaddr->u.a6.pfxlen = 0;
 815                 }
 816                 ipaddr->type = QETH_IP_TYPE_VIPA;
 817                 ipaddr->set_flags = QETH_IPA_SETIP_VIPA_FLAG;
 818                 ipaddr->del_flags = QETH_IPA_DELIP_VIPA_FLAG;
 819         } else
 820                 return -ENOMEM;
 821         spin_lock_irqsave(&card->ip_lock, flags);
 822         if (qeth_l3_address_exists_in_list(&card->ip_list, ipaddr, 0) ||
 823             qeth_l3_address_exists_in_list(card->ip_tbd_list, ipaddr, 0))
 824                 rc = -EEXIST;
 825         spin_unlock_irqrestore(&card->ip_lock, flags);
 826         if (rc) {
 827                 return rc;
 828         }
 829         if (!qeth_l3_add_ip(card, ipaddr))
 830                 kfree(ipaddr);
 831         qeth_l3_set_ip_addr_list(card);
 832         return rc;
 833 }
 834
 835 void qeth_l3_del_vipa(struct qeth_card *card, enum qeth_prot_versions proto,
 836               const u8 *addr)
 837 {
 838         struct qeth_ipaddr *ipaddr;
 839
 840         ipaddr = qeth_l3_get_addr_buffer(proto);
 841         if (ipaddr) {
 842                 if (proto == QETH_PROT_IPV4) {
 843                         QETH_CARD_TEXT(card, 2, "delvipa4");
 844                         memcpy(&ipaddr->u.a4.addr, addr, 4);
 845                         ipaddr->u.a4.mask = 0;
 846                 } else if (proto == QETH_PROT_IPV6) {
 847                         QETH_CARD_TEXT(card, 2, "delvipa6");
 848                         memcpy(&ipaddr->u.a6.addr, addr, 16);
 849                         ipaddr->u.a6.pfxlen = 0;
 850                 }
 851                 ipaddr->type = QETH_IP_TYPE_VIPA;
 852         } else
 853                 return;
 854         if (!qeth_l3_delete_ip(card, ipaddr))
 855                 kfree(ipaddr);
 856         qeth_l3_set_ip_addr_list(card);
 857 }
 858
 859 /*
 860  * proxy ARP related functions
 861  */
 862 int qeth_l3_add_rxip(struct qeth_card *card, enum qeth_prot_versions proto,
 863               const u8 *addr)
 864 {
 865         struct qeth_ipaddr *ipaddr;
 866         unsigned long flags;
 867         int rc = 0;
 868
 869         ipaddr = qeth_l3_get_addr_buffer(proto);
 870         if (ipaddr) {
 871                 if (proto == QETH_PROT_IPV4) {
 872                         QETH_CARD_TEXT(card, 2, "addrxip4");
 873                         memcpy(&ipaddr->u.a4.addr, addr, 4);
 874                         ipaddr->u.a4.mask = 0;
 875                 } else if (proto == QETH_PROT_IPV6) {
 876                         QETH_CARD_TEXT(card, 2, "addrxip6");
 877                         memcpy(&ipaddr->u.a6.addr, addr, 16);
 878                         ipaddr->u.a6.pfxlen = 0;
 879                 }
 880                 ipaddr->type = QETH_IP_TYPE_RXIP;
 881                 ipaddr->set_flags = QETH_IPA_SETIP_TAKEOVER_FLAG;
 882                 ipaddr->del_flags = 0;
 883         } else
 884                 return -ENOMEM;
 885         spin_lock_irqsave(&card->ip_lock, flags);
 886         if (qeth_l3_address_exists_in_list(&card->ip_list, ipaddr, 0) ||
 887             qeth_l3_address_exists_in_list(card->ip_tbd_list, ipaddr, 0))
 888                 rc = -EEXIST;
 889         spin_unlock_irqrestore(&card->ip_lock, flags);
 890         if (rc) {
 891                 return rc;
 892         }
 893         if (!qeth_l3_add_ip(card, ipaddr))
 894                 kfree(ipaddr);
 895         qeth_l3_set_ip_addr_list(card);
 896         return 0;
 897 }
 898
 899 void qeth_l3_del_rxip(struct qeth_card *card, enum qeth_prot_versions proto,
 900                         const u8 *addr)
 901 {
 902         struct qeth_ipaddr *ipaddr;
 903
 904         ipaddr = qeth_l3_get_addr_buffer(proto);
 905         if (ipaddr) {
 906                 if (proto == QETH_PROT_IPV4) {
 907                         QETH_CARD_TEXT(card, 2, "addrxip4");
 908                         memcpy(&ipaddr->u.a4.addr, addr, 4);
 909                         ipaddr->u.a4.mask = 0;
 910                 } else if (proto == QETH_PROT_IPV6) {
 911                         QETH_CARD_TEXT(card, 2, "addrxip6");
 912                         memcpy(&ipaddr->u.a6.addr, addr, 16);
 913                         ipaddr->u.a6.pfxlen = 0;
 914                 }
 915                 ipaddr->type = QETH_IP_TYPE_RXIP;
 916         } else
 917                 return;
 918         if (!qeth_l3_delete_ip(card, ipaddr))
 919                 kfree(ipaddr);
 920         qeth_l3_set_ip_addr_list(card);
 921 }
 922
 923 static int qeth_l3_register_addr_entry(struct qeth_card *card,
 924                                 struct qeth_ipaddr *addr)
 925 {
 926         char buf[50];
 927         int rc = 0;
 928         int cnt = 3;
 929
 930         if (addr->proto == QETH_PROT_IPV4) {
 931                 QETH_CARD_TEXT(card, 2, "setaddr4");
 932                 QETH_CARD_HEX(card, 3, &addr->u.a4.addr, sizeof(int));
 933         } else if (addr->proto == QETH_PROT_IPV6) {
 934                 QETH_CARD_TEXT(card, 2, "setaddr6");
 935                 QETH_CARD_HEX(card, 3, &addr->u.a6.addr, 8);
 936                 QETH_CARD_HEX(card, 3, ((char *)&addr->u.a6.addr) + 8, 8);
 937         } else {
 938                 QETH_CARD_TEXT(card, 2, "setaddr?");
 939                 QETH_CARD_HEX(card, 3, addr, sizeof(struct qeth_ipaddr));
 940         }
 941         do {
 942                 if (addr->is_multicast)
 943                         rc =  qeth_l3_send_setdelmc(card, addr, IPA_CMD_SETIPM);
 944                 else
 945                         rc = qeth_l3_send_setdelip(card, addr, IPA_CMD_SETIP,
 946                                         addr->set_flags);
 947                 if (rc)
 948                         QETH_CARD_TEXT(card, 2, "failed");
 949         } while ((--cnt > 0) && rc);
 950         if (rc) {
 951                 QETH_CARD_TEXT(card, 2, "FAILED");
 952                 qeth_l3_ipaddr_to_string(addr->proto, (u8 *)&addr->u, buf);
 953                 dev_warn(&card->gdev->dev,
 954                         "Registering IP address %s failed\n", buf);
 955         }
 956         return rc;
 957 }
 958
 959 static int qeth_l3_deregister_addr_entry(struct qeth_card *card,
 960                                                 struct qeth_ipaddr *addr)
 961 {
 962         int rc = 0;
 963
 964         if (addr->proto == QETH_PROT_IPV4) {
 965                 QETH_CARD_TEXT(card, 2, "deladdr4");
 966                 QETH_CARD_HEX(card, 3, &addr->u.a4.addr, sizeof(int));
 967         } else if (addr->proto == QETH_PROT_IPV6) {
 968                 QETH_CARD_TEXT(card, 2, "deladdr6");
 969                 QETH_CARD_HEX(card, 3, &addr->u.a6.addr, 8);
 970                 QETH_CARD_HEX(card, 3, ((char *)&addr->u.a6.addr) + 8, 8);
 971         } else {
 972                 QETH_CARD_TEXT(card, 2, "deladdr?");
 973                 QETH_CARD_HEX(card, 3, addr, sizeof(struct qeth_ipaddr));
 974         }
 975         if (addr->is_multicast)
 976                 rc = qeth_l3_send_setdelmc(card, addr, IPA_CMD_DELIPM);
 977         else
 978                 rc = qeth_l3_send_setdelip(card, addr, IPA_CMD_DELIP,
 979                                         addr->del_flags);
 980         if (rc)
 981                 QETH_CARD_TEXT(card, 2, "failed");
 982
 983         return rc;
 984 }
 985
 986 static inline u8 qeth_l3_get_qeth_hdr_flags4(int cast_type)
 987 {
 988         if (cast_type == RTN_MULTICAST)
 989                 return QETH_CAST_MULTICAST;
 990         if (cast_type == RTN_BROADCAST)
 991                 return QETH_CAST_BROADCAST;
 992         return QETH_CAST_UNICAST;
 993 }
 994
 995 static inline u8 qeth_l3_get_qeth_hdr_flags6(int cast_type)
 996 {
 997         u8 ct = QETH_HDR_PASSTHRU | QETH_HDR_IPV6;
 998         if (cast_type == RTN_MULTICAST)
 999                 return ct | QETH_CAST_MULTICAST;
1000         if (cast_type == RTN_ANYCAST)
1001                 return ct | QETH_CAST_ANYCAST;
1002         if (cast_type == RTN_BROADCAST)
1003                 return ct | QETH_CAST_BROADCAST;
1004         return ct | QETH_CAST_UNICAST;
1005 }
1006
1007 static int qeth_l3_send_setadp_mode(struct qeth_card *card, __u32 command,
1008                                         __u32 mode)
1009 {
1010         int rc;
1011         struct qeth_cmd_buffer *iob;
1012         struct qeth_ipa_cmd *cmd;
1013
1014         QETH_CARD_TEXT(card, 4, "adpmode");
1015
1016         iob = qeth_get_adapter_cmd(card, command,
1017                                    sizeof(struct qeth_ipacmd_setadpparms));
1018         cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
1019         cmd->data.setadapterparms.data.mode = mode;
1020         rc = qeth_send_ipa_cmd(card, iob, qeth_default_setadapterparms_cb,
1021                                NULL);
1022         return rc;
1023 }
1024
1025 static int qeth_l3_setadapter_hstr(struct qeth_card *card)
1026 {
1027         int rc;
1028
1029         QETH_CARD_TEXT(card, 4, "adphstr");
1030
1031         if (qeth_adp_supported(card, IPA_SETADP_SET_BROADCAST_MODE)) {
1032                 rc = qeth_l3_send_setadp_mode(card,
1033                                         IPA_SETADP_SET_BROADCAST_MODE,
1034                                         card->options.broadcast_mode);
1035                 if (rc)
1036                         QETH_DBF_MESSAGE(2, "couldn't set broadcast mode on "
1037                                    "device %s: x%x\n",
1038                                    CARD_BUS_ID(card), rc);
1039                 rc = qeth_l3_send_setadp_mode(card,
1040                                         IPA_SETADP_ALTER_MAC_ADDRESS,
1041                                         card->options.macaddr_mode);
1042                 if (rc)
1043                         QETH_DBF_MESSAGE(2, "couldn't set macaddr mode on "
1044                                    "device %s: x%x\n", CARD_BUS_ID(card), rc);
1045                 return rc;
1046         }
1047         if (card->options.broadcast_mode == QETH_TR_BROADCAST_LOCAL)
1048                 QETH_DBF_MESSAGE(2, "set adapter parameters not available "
1049                            "to set broadcast mode, using ALLRINGS "
1050                            "on device %s:\n", CARD_BUS_ID(card));
1051         if (card->options.macaddr_mode == QETH_TR_MACADDR_CANONICAL)
1052                 QETH_DBF_MESSAGE(2, "set adapter parameters not available "
1053                            "to set macaddr mode, using NONCANONICAL "
1054                            "on device %s:\n", CARD_BUS_ID(card));
1055         return 0;
1056 }
1057
1058 static int qeth_l3_setadapter_parms(struct qeth_card *card)
1059 {
1060         int rc;
1061
1062         QETH_DBF_TEXT(SETUP, 2, "setadprm");
1063
1064         if (!qeth_is_supported(card, IPA_SETADAPTERPARMS)) {
1065                 dev_info(&card->gdev->dev,
1066                         "set adapter parameters not supported.\n");
1067                 QETH_DBF_TEXT(SETUP, 2, " notsupp");
1068                 return 0;
1069         }
1070         rc = qeth_query_setadapterparms(card);
1071         if (rc) {
1072                 QETH_DBF_MESSAGE(2, "%s couldn't set adapter parameters: "
1073                         "0x%x\n", dev_name(&card->gdev->dev), rc);
1074                 return rc;
1075         }
1076         if (qeth_adp_supported(card, IPA_SETADP_ALTER_MAC_ADDRESS)) {
1077                 rc = qeth_setadpparms_change_macaddr(card);
1078                 if (rc)
1079                         dev_warn(&card->gdev->dev, "Reading the adapter MAC"
1080                                 " address failed\n");
1081         }
1082
1083         if ((card->info.link_type == QETH_LINK_TYPE_HSTR) ||
1084             (card->info.link_type == QETH_LINK_TYPE_LANE_TR))
1085                 rc = qeth_l3_setadapter_hstr(card);
1086
1087         return rc;
1088 }
1089
1090 static int qeth_l3_default_setassparms_cb(struct qeth_card *card,
1091                         struct qeth_reply *reply, unsigned long data)
1092 {
1093         struct qeth_ipa_cmd *cmd;
1094
1095         QETH_CARD_TEXT(card, 4, "defadpcb");
1096
1097         cmd = (struct qeth_ipa_cmd *) data;
1098         if (cmd->hdr.return_code == 0) {
1099                 cmd->hdr.return_code = cmd->data.setassparms.hdr.return_code;
1100                 if (cmd->hdr.prot_version == QETH_PROT_IPV4)
1101                         card->options.ipa4.enabled_funcs = cmd->hdr.ipa_enabled;
1102                 if (cmd->hdr.prot_version == QETH_PROT_IPV6)
1103                         card->options.ipa6.enabled_funcs = cmd->hdr.ipa_enabled;
1104         }
1105         if (cmd->data.setassparms.hdr.assist_no == IPA_INBOUND_CHECKSUM &&
1106             cmd->data.setassparms.hdr.command_code == IPA_CMD_ASS_START) {
1107                 card->info.csum_mask = cmd->data.setassparms.data.flags_32bit;
1108                 QETH_CARD_TEXT_(card, 3, "csum:%d", card->info.csum_mask);
1109         }
1110         if (cmd->data.setassparms.hdr.assist_no == IPA_OUTBOUND_CHECKSUM &&
1111             cmd->data.setassparms.hdr.command_code == IPA_CMD_ASS_START) {
1112                 card->info.tx_csum_mask =
1113                         cmd->data.setassparms.data.flags_32bit;
1114                 QETH_CARD_TEXT_(card, 3, "tcsu:%d", card->info.tx_csum_mask);
1115         }
1116
1117         return 0;
1118 }
1119
1120 static struct qeth_cmd_buffer *qeth_l3_get_setassparms_cmd(
1121         struct qeth_card *card, enum qeth_ipa_funcs ipa_func, __u16 cmd_code,
1122         __u16 len, enum qeth_prot_versions prot)
1123 {
1124         struct qeth_cmd_buffer *iob;
1125         struct qeth_ipa_cmd *cmd;
1126
1127         QETH_CARD_TEXT(card, 4, "getasscm");
1128         iob = qeth_get_ipacmd_buffer(card, IPA_CMD_SETASSPARMS, prot);
1129
1130         cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
1131         cmd->data.setassparms.hdr.assist_no = ipa_func;
1132         cmd->data.setassparms.hdr.length = 8 + len;
1133         cmd->data.setassparms.hdr.command_code = cmd_code;
1134         cmd->data.setassparms.hdr.return_code = 0;
1135         cmd->data.setassparms.hdr.seq_no = 0;
1136
1137         return iob;
1138 }
1139
1140 static int qeth_l3_send_setassparms(struct qeth_card *card,
1141         struct qeth_cmd_buffer *iob, __u16 len, long data,
1142         int (*reply_cb)(struct qeth_card *, struct qeth_reply *,
1143                 unsigned long),
1144         void *reply_param)
1145 {
1146         int rc;
1147         struct qeth_ipa_cmd *cmd;
1148
1149         QETH_CARD_TEXT(card, 4, "sendassp");
1150
1151         cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
1152         if (len <= sizeof(__u32))
1153                 cmd->data.setassparms.data.flags_32bit = (__u32) data;
1154         else   /* (len > sizeof(__u32)) */
1155                 memcpy(&cmd->data.setassparms.data, (void *) data, len);
1156
1157         rc = qeth_send_ipa_cmd(card, iob, reply_cb, reply_param);
1158         return rc;
1159 }
1160
1161 #ifdef CONFIG_QETH_IPV6
1162 static int qeth_l3_send_simple_setassparms_ipv6(struct qeth_card *card,
1163                 enum qeth_ipa_funcs ipa_func, __u16 cmd_code)
1164 {
1165         int rc;
1166         struct qeth_cmd_buffer *iob;
1167
1168         QETH_CARD_TEXT(card, 4, "simassp6");
1169         iob = qeth_l3_get_setassparms_cmd(card, ipa_func, cmd_code,
1170                                        0, QETH_PROT_IPV6);
1171         rc = qeth_l3_send_setassparms(card, iob, 0, 0,
1172                                    qeth_l3_default_setassparms_cb, NULL);
1173         return rc;
1174 }
1175 #endif
1176
1177 static int qeth_l3_send_simple_setassparms(struct qeth_card *card,
1178                 enum qeth_ipa_funcs ipa_func, __u16 cmd_code, long data)
1179 {
1180         int rc;
1181         int length = 0;
1182         struct qeth_cmd_buffer *iob;
1183
1184         QETH_CARD_TEXT(card, 4, "simassp4");
1185         if (data)
1186                 length = sizeof(__u32);
1187         iob = qeth_l3_get_setassparms_cmd(card, ipa_func, cmd_code,
1188                                        length, QETH_PROT_IPV4);
1189         rc = qeth_l3_send_setassparms(card, iob, length, data,
1190                                    qeth_l3_default_setassparms_cb, NULL);
1191         return rc;
1192 }
1193
1194 static int qeth_l3_start_ipa_arp_processing(struct qeth_card *card)
1195 {
1196         int rc;
1197
1198         QETH_CARD_TEXT(card, 3, "ipaarp");
1199
1200         if (!qeth_is_supported(card, IPA_ARP_PROCESSING)) {
1201                 dev_info(&card->gdev->dev,
1202                         "ARP processing not supported on %s!\n",
1203                         QETH_CARD_IFNAME(card));
1204                 return 0;
1205         }
1206         rc = qeth_l3_send_simple_setassparms(card, IPA_ARP_PROCESSING,
1207                                         IPA_CMD_ASS_START, 0);
1208         if (rc) {
1209                 dev_warn(&card->gdev->dev,
1210                         "Starting ARP processing support for %s failed\n",
1211                         QETH_CARD_IFNAME(card));
1212         }
1213         return rc;
1214 }
1215
1216 static int qeth_l3_start_ipa_ip_fragmentation(struct qeth_card *card)
1217 {
1218         int rc;
1219
1220         QETH_CARD_TEXT(card, 3, "ipaipfrg");
1221
1222         if (!qeth_is_supported(card, IPA_IP_FRAGMENTATION)) {
1223                 dev_info(&card->gdev->dev,
1224                         "Hardware IP fragmentation not supported on %s\n",
1225                         QETH_CARD_IFNAME(card));
1226                 return  -EOPNOTSUPP;
1227         }
1228
1229         rc = qeth_l3_send_simple_setassparms(card, IPA_IP_FRAGMENTATION,
1230                                           IPA_CMD_ASS_START, 0);
1231         if (rc) {
1232                 dev_warn(&card->gdev->dev,
1233                         "Starting IP fragmentation support for %s failed\n",
1234                         QETH_CARD_IFNAME(card));
1235         } else
1236                 dev_info(&card->gdev->dev,
1237                         "Hardware IP fragmentation enabled \n");
1238         return rc;
1239 }
1240
1241 static int qeth_l3_start_ipa_source_mac(struct qeth_card *card)
1242 {
1243         int rc;
1244
1245         QETH_CARD_TEXT(card, 3, "stsrcmac");
1246
1247         if (!qeth_is_supported(card, IPA_SOURCE_MAC)) {
1248                 dev_info(&card->gdev->dev,
1249                         "Inbound source MAC-address not supported on %s\n",
1250                         QETH_CARD_IFNAME(card));
1251                 return -EOPNOTSUPP;
1252         }
1253
1254         rc = qeth_l3_send_simple_setassparms(card, IPA_SOURCE_MAC,
1255                                           IPA_CMD_ASS_START, 0);
1256         if (rc)
1257                 dev_warn(&card->gdev->dev,
1258                         "Starting source MAC-address support for %s failed\n",
1259                         QETH_CARD_IFNAME(card));
1260         return rc;
1261 }
1262
1263 static int qeth_l3_start_ipa_vlan(struct qeth_card *card)
1264 {
1265         int rc = 0;
1266
1267         QETH_CARD_TEXT(card, 3, "strtvlan");
1268
1269         if (!qeth_is_supported(card, IPA_FULL_VLAN)) {
1270                 dev_info(&card->gdev->dev,
1271                         "VLAN not supported on %s\n", QETH_CARD_IFNAME(card));
1272                 return -EOPNOTSUPP;
1273         }
1274
1275         rc = qeth_l3_send_simple_setassparms(card, IPA_VLAN_PRIO,
1276                                           IPA_CMD_ASS_START, 0);
1277         if (rc) {
1278                 dev_warn(&card->gdev->dev,
1279                         "Starting VLAN support for %s failed\n",
1280                         QETH_CARD_IFNAME(card));
1281         } else {
1282                 dev_info(&card->gdev->dev, "VLAN enabled\n");
1283         }
1284         return rc;
1285 }
1286
1287 static int qeth_l3_start_ipa_multicast(struct qeth_card *card)
1288 {
1289         int rc;
1290
1291         QETH_CARD_TEXT(card, 3, "stmcast");
1292
1293         if (!qeth_is_supported(card, IPA_MULTICASTING)) {
1294                 dev_info(&card->gdev->dev,
1295                         "Multicast not supported on %s\n",
1296                         QETH_CARD_IFNAME(card));
1297                 return -EOPNOTSUPP;
1298         }
1299
1300         rc = qeth_l3_send_simple_setassparms(card, IPA_MULTICASTING,
1301                                           IPA_CMD_ASS_START, 0);
1302         if (rc) {
1303                 dev_warn(&card->gdev->dev,
1304                         "Starting multicast support for %s failed\n",
1305                         QETH_CARD_IFNAME(card));
1306         } else {
1307                 dev_info(&card->gdev->dev, "Multicast enabled\n");
1308                 card->dev->flags |= IFF_MULTICAST;
1309         }
1310         return rc;
1311 }
1312
1313 static int qeth_l3_query_ipassists_cb(struct qeth_card *card,
1314                 struct qeth_reply *reply, unsigned long data)
1315 {
1316         struct qeth_ipa_cmd *cmd;
1317
1318         QETH_DBF_TEXT(SETUP, 2, "qipasscb");
1319
1320         cmd = (struct qeth_ipa_cmd *) data;
1321         if (cmd->hdr.prot_version == QETH_PROT_IPV4) {
1322                 card->options.ipa4.supported_funcs = cmd->hdr.ipa_supported;
1323                 card->options.ipa4.enabled_funcs = cmd->hdr.ipa_enabled;
1324         } else {
1325                 card->options.ipa6.supported_funcs = cmd->hdr.ipa_supported;
1326                 card->options.ipa6.enabled_funcs = cmd->hdr.ipa_enabled;
1327         }
1328         QETH_DBF_TEXT(SETUP, 2, "suppenbl");
1329         QETH_DBF_TEXT_(SETUP, 2, "%x", cmd->hdr.ipa_supported);
1330         QETH_DBF_TEXT_(SETUP, 2, "%x", cmd->hdr.ipa_enabled);
1331         return 0;
1332 }
1333
1334 static int qeth_l3_query_ipassists(struct qeth_card *card,
1335                                 enum qeth_prot_versions prot)
1336 {
1337         int rc;
1338         struct qeth_cmd_buffer *iob;
1339
1340         QETH_DBF_TEXT_(SETUP, 2, "qipassi%i", prot);
1341         iob = qeth_get_ipacmd_buffer(card, IPA_CMD_QIPASSIST, prot);
1342         rc = qeth_send_ipa_cmd(card, iob, qeth_l3_query_ipassists_cb, NULL);
1343         return rc;
1344 }
1345
1346 #ifdef CONFIG_QETH_IPV6
1347 static int qeth_l3_softsetup_ipv6(struct qeth_card *card)
1348 {
1349         int rc;
1350
1351         QETH_CARD_TEXT(card, 3, "softipv6");
1352
1353         if (card->info.type == QETH_CARD_TYPE_IQD)
1354                 goto out;
1355
1356         rc = qeth_l3_query_ipassists(card, QETH_PROT_IPV6);
1357         if (rc) {
1358                 dev_err(&card->gdev->dev,
1359                         "Activating IPv6 support for %s failed\n",
1360                         QETH_CARD_IFNAME(card));
1361                 return rc;
1362         }
1363         rc = qeth_l3_send_simple_setassparms(card, IPA_IPV6,
1364                                           IPA_CMD_ASS_START, 3);
1365         if (rc) {
1366                 dev_err(&card->gdev->dev,
1367                         "Activating IPv6 support for %s failed\n",
1368                         QETH_CARD_IFNAME(card));
1369                 return rc;
1370         }
1371         rc = qeth_l3_send_simple_setassparms_ipv6(card, IPA_IPV6,
1372                                                IPA_CMD_ASS_START);
1373         if (rc) {
1374                 dev_err(&card->gdev->dev,
1375                         "Activating IPv6 support for %s failed\n",
1376                          QETH_CARD_IFNAME(card));
1377                 return rc;
1378         }
1379         rc = qeth_l3_send_simple_setassparms_ipv6(card, IPA_PASSTHRU,
1380                                                IPA_CMD_ASS_START);
1381         if (rc) {
1382                 dev_warn(&card->gdev->dev,
1383                         "Enabling the passthrough mode for %s failed\n",
1384                         QETH_CARD_IFNAME(card));
1385                 return rc;
1386         }
1387 out:
1388         dev_info(&card->gdev->dev, "IPV6 enabled\n");
1389         return 0;
1390 }
1391 #endif
1392
1393 static int qeth_l3_start_ipa_ipv6(struct qeth_card *card)
1394 {
1395         int rc = 0;
1396
1397         QETH_CARD_TEXT(card, 3, "strtipv6");
1398
1399         if (!qeth_is_supported(card, IPA_IPV6)) {
1400                 dev_info(&card->gdev->dev,
1401                         "IPv6 not supported on %s\n", QETH_CARD_IFNAME(card));
1402                 return 0;
1403         }
1404 #ifdef CONFIG_QETH_IPV6
1405         rc = qeth_l3_softsetup_ipv6(card);
1406 #endif
1407         return rc ;
1408 }
1409
1410 static int qeth_l3_start_ipa_broadcast(struct qeth_card *card)
1411 {
1412         int rc;
1413
1414         QETH_CARD_TEXT(card, 3, "stbrdcst");
1415         card->info.broadcast_capable = 0;
1416         if (!qeth_is_supported(card, IPA_FILTERING)) {
1417                 dev_info(&card->gdev->dev,
1418                         "Broadcast not supported on %s\n",
1419                         QETH_CARD_IFNAME(card));
1420                 rc = -EOPNOTSUPP;
1421                 goto out;
1422         }
1423         rc = qeth_l3_send_simple_setassparms(card, IPA_FILTERING,
1424                                           IPA_CMD_ASS_START, 0);
1425         if (rc) {
1426                 dev_warn(&card->gdev->dev, "Enabling broadcast filtering for "
1427                         "%s failed\n", QETH_CARD_IFNAME(card));
1428                 goto out;
1429         }
1430
1431         rc = qeth_l3_send_simple_setassparms(card, IPA_FILTERING,
1432                                           IPA_CMD_ASS_CONFIGURE, 1);
1433         if (rc) {
1434                 dev_warn(&card->gdev->dev,
1435                         "Setting up broadcast filtering for %s failed\n",
1436                         QETH_CARD_IFNAME(card));
1437                 goto out;
1438         }
1439         card->info.broadcast_capable = QETH_BROADCAST_WITH_ECHO;
1440         dev_info(&card->gdev->dev, "Broadcast enabled\n");
1441         rc = qeth_l3_send_simple_setassparms(card, IPA_FILTERING,
1442                                           IPA_CMD_ASS_ENABLE, 1);
1443         if (rc) {
1444                 dev_warn(&card->gdev->dev, "Setting up broadcast echo "
1445                         "filtering for %s failed\n", QETH_CARD_IFNAME(card));
1446                 goto out;
1447         }
1448         card->info.broadcast_capable = QETH_BROADCAST_WITHOUT_ECHO;
1449 out:
1450         if (card->info.broadcast_capable)
1451                 card->dev->flags |= IFF_BROADCAST;
1452         else
1453                 card->dev->flags &= ~IFF_BROADCAST;
1454         return rc;
1455 }
1456
1457 static int qeth_l3_send_checksum_command(struct qeth_card *card)
1458 {
1459         int rc;
1460
1461         rc = qeth_l3_send_simple_setassparms(card, IPA_INBOUND_CHECKSUM,
1462                                           IPA_CMD_ASS_START, 0);
1463         if (rc) {
1464                 dev_warn(&card->gdev->dev, "Starting HW checksumming for %s "
1465                         "failed, using SW checksumming\n",
1466                         QETH_CARD_IFNAME(card));
1467                 return rc;
1468         }
1469         rc = qeth_l3_send_simple_setassparms(card, IPA_INBOUND_CHECKSUM,
1470                                           IPA_CMD_ASS_ENABLE,
1471                                           card->info.csum_mask);
1472         if (rc) {
1473                 dev_warn(&card->gdev->dev, "Enabling HW checksumming for %s "
1474                         "failed, using SW checksumming\n",
1475                         QETH_CARD_IFNAME(card));
1476                 return rc;
1477         }
1478         return 0;
1479 }
1480
1481 int qeth_l3_set_rx_csum(struct qeth_card *card,
1482         enum qeth_checksum_types csum_type)
1483 {
1484         int rc = 0;
1485
1486         if (card->options.checksum_type == HW_CHECKSUMMING) {
1487                 if ((csum_type != HW_CHECKSUMMING) &&
1488                         (card->state != CARD_STATE_DOWN)) {
1489                         rc = qeth_l3_send_simple_setassparms(card,
1490                                 IPA_INBOUND_CHECKSUM, IPA_CMD_ASS_STOP, 0);
1491                         if (rc)
1492                                 return -EIO;
1493                 }
1494         } else {
1495                 if (csum_type == HW_CHECKSUMMING) {
1496                         if (card->state != CARD_STATE_DOWN) {
1497                                 if (!qeth_is_supported(card,
1498                                     IPA_INBOUND_CHECKSUM))
1499                                         return -EPERM;
1500                                 rc = qeth_l3_send_checksum_command(card);
1501                                 if (rc)
1502                                         return -EIO;
1503                         }
1504                 }
1505         }
1506         card->options.checksum_type = csum_type;
1507         return rc;
1508 }
1509
1510 static int qeth_l3_start_ipa_checksum(struct qeth_card *card)
1511 {
1512         int rc = 0;
1513
1514         QETH_CARD_TEXT(card, 3, "strtcsum");
1515
1516         if (card->options.checksum_type == NO_CHECKSUMMING) {
1517                 dev_info(&card->gdev->dev,
1518                         "Using no checksumming on %s.\n",
1519                         QETH_CARD_IFNAME(card));
1520                 return 0;
1521         }
1522         if (card->options.checksum_type == SW_CHECKSUMMING) {
1523                 dev_info(&card->gdev->dev,
1524                         "Using SW checksumming on %s.\n",
1525                         QETH_CARD_IFNAME(card));
1526                 return 0;
1527         }
1528         if (!qeth_is_supported(card, IPA_INBOUND_CHECKSUM)) {
1529                 dev_info(&card->gdev->dev,
1530                         "Inbound HW Checksumming not "
1531                         "supported on %s,\ncontinuing "
1532                         "using Inbound SW Checksumming\n",
1533                         QETH_CARD_IFNAME(card));
1534                 card->options.checksum_type = SW_CHECKSUMMING;
1535                 return 0;
1536         }
1537         rc = qeth_l3_send_checksum_command(card);
1538         if (!rc)
1539                 dev_info(&card->gdev->dev,
1540                         "HW Checksumming (inbound) enabled\n");
1541
1542         return rc;
1543 }
1544
1545 static int qeth_l3_start_ipa_tx_checksum(struct qeth_card *card)
1546 {
1547         int rc = 0;
1548
1549         if (!qeth_is_supported(card, IPA_OUTBOUND_CHECKSUM))
1550                 return rc;
1551         rc = qeth_l3_send_simple_setassparms(card, IPA_OUTBOUND_CHECKSUM,
1552                           IPA_CMD_ASS_START, 0);
1553         if (rc)
1554                 goto err_out;
1555         rc = qeth_l3_send_simple_setassparms(card, IPA_OUTBOUND_CHECKSUM,
1556                           IPA_CMD_ASS_ENABLE, card->info.tx_csum_mask);
1557         if (rc)
1558                 goto err_out;
1559         dev_info(&card->gdev->dev, "HW TX Checksumming enabled\n");
1560         return rc;
1561 err_out:
1562         dev_warn(&card->gdev->dev, "Enabling HW TX checksumming for %s "
1563                 "failed, using SW TX checksumming\n", QETH_CARD_IFNAME(card));
1564         return rc;
1565 }
1566
1567 static int qeth_l3_start_ipa_tso(struct qeth_card *card)
1568 {
1569         int rc;
1570
1571         QETH_CARD_TEXT(card, 3, "sttso");
1572
1573         if (!qeth_is_supported(card, IPA_OUTBOUND_TSO)) {
1574                 dev_info(&card->gdev->dev,
1575                         "Outbound TSO not supported on %s\n",
1576                         QETH_CARD_IFNAME(card));
1577                 rc = -EOPNOTSUPP;
1578         } else {
1579                 rc = qeth_l3_send_simple_setassparms(card, IPA_OUTBOUND_TSO,
1580                                                 IPA_CMD_ASS_START, 0);
1581                 if (rc)
1582                         dev_warn(&card->gdev->dev, "Starting outbound TCP "
1583                                 "segmentation offload for %s failed\n",
1584                                 QETH_CARD_IFNAME(card));
1585                 else
1586                         dev_info(&card->gdev->dev,
1587                                 "Outbound TSO enabled\n");
1588         }
1589         if (rc && (card->options.large_send == QETH_LARGE_SEND_TSO)) {
1590                 card->options.large_send = QETH_LARGE_SEND_NO;
1591                 card->dev->features &= ~(NETIF_F_TSO | NETIF_F_SG);
1592         }
1593         return rc;
1594 }
1595
1596 static int qeth_l3_start_ipassists(struct qeth_card *card)
1597 {
1598         QETH_CARD_TEXT(card, 3, "strtipas");
1599
1600         qeth_set_access_ctrl_online(card);      /* go on*/
1601         qeth_l3_start_ipa_arp_processing(card); /* go on*/
1602         qeth_l3_start_ipa_ip_fragmentation(card);       /* go on*/
1603         qeth_l3_start_ipa_source_mac(card);     /* go on*/
1604         qeth_l3_start_ipa_vlan(card);           /* go on*/
1605         qeth_l3_start_ipa_multicast(card);              /* go on*/
1606         qeth_l3_start_ipa_ipv6(card);           /* go on*/
1607         qeth_l3_start_ipa_broadcast(card);              /* go on*/
1608         qeth_l3_start_ipa_checksum(card);               /* go on*/
1609         qeth_l3_start_ipa_tx_checksum(card);
1610         qeth_l3_start_ipa_tso(card);            /* go on*/
1611         return 0;
1612 }
1613
1614 static int qeth_l3_put_unique_id(struct qeth_card *card)
1615 {
1616
1617         int rc = 0;
1618         struct qeth_cmd_buffer *iob;
1619         struct qeth_ipa_cmd *cmd;
1620
1621         QETH_CARD_TEXT(card, 2, "puniqeid");
1622
1623         if ((card->info.unique_id & UNIQUE_ID_NOT_BY_CARD) ==
1624                 UNIQUE_ID_NOT_BY_CARD)
1625                 return -1;
1626         iob = qeth_get_ipacmd_buffer(card, IPA_CMD_DESTROY_ADDR,
1627                                      QETH_PROT_IPV6);
1628         cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
1629         *((__u16 *) &cmd->data.create_destroy_addr.unique_id[6]) =
1630                                 card->info.unique_id;
1631         memcpy(&cmd->data.create_destroy_addr.unique_id[0],
1632                card->dev->dev_addr, OSA_ADDR_LEN);
1633         rc = qeth_send_ipa_cmd(card, iob, NULL, NULL);
1634         return rc;
1635 }
1636
1637 static int qeth_l3_iqd_read_initial_mac_cb(struct qeth_card *card,
1638                 struct qeth_reply *reply, unsigned long data)
1639 {
1640         struct qeth_ipa_cmd *cmd;
1641
1642         cmd = (struct qeth_ipa_cmd *) data;
1643         if (cmd->hdr.return_code == 0)
1644                 memcpy(card->dev->dev_addr,
1645                         cmd->data.create_destroy_addr.unique_id, ETH_ALEN);
1646         else
1647                 random_ether_addr(card->dev->dev_addr);
1648
1649         return 0;
1650 }
1651
1652 static int qeth_l3_iqd_read_initial_mac(struct qeth_card *card)
1653 {
1654         int rc = 0;
1655         struct qeth_cmd_buffer *iob;
1656         struct qeth_ipa_cmd *cmd;
1657
1658         QETH_DBF_TEXT(SETUP, 2, "hsrmac");
1659
1660         iob = qeth_get_ipacmd_buffer(card, IPA_CMD_CREATE_ADDR,
1661                                      QETH_PROT_IPV6);
1662         cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
1663         *((__u16 *) &cmd->data.create_destroy_addr.unique_id[6]) =
1664                         card->info.unique_id;
1665
1666         rc = qeth_send_ipa_cmd(card, iob, qeth_l3_iqd_read_initial_mac_cb,
1667                                 NULL);
1668         return rc;
1669 }
1670
1671 static int qeth_l3_get_unique_id_cb(struct qeth_card *card,
1672                 struct qeth_reply *reply, unsigned long data)
1673 {
1674         struct qeth_ipa_cmd *cmd;
1675
1676         cmd = (struct qeth_ipa_cmd *) data;
1677         if (cmd->hdr.return_code == 0)
1678                 card->info.unique_id = *((__u16 *)
1679                                 &cmd->data.create_destroy_addr.unique_id[6]);
1680         else {
1681                 card->info.unique_id =  UNIQUE_ID_IF_CREATE_ADDR_FAILED |
1682                                         UNIQUE_ID_NOT_BY_CARD;
1683                 dev_warn(&card->gdev->dev, "The network adapter failed to "
1684                         "generate a unique ID\n");
1685         }
1686         return 0;
1687 }
1688
1689 static int qeth_l3_get_unique_id(struct qeth_card *card)
1690 {
1691         int rc = 0;
1692         struct qeth_cmd_buffer *iob;
1693         struct qeth_ipa_cmd *cmd;
1694
1695         QETH_DBF_TEXT(SETUP, 2, "guniqeid");
1696
1697         if (!qeth_is_supported(card, IPA_IPV6)) {
1698                 card->info.unique_id =  UNIQUE_ID_IF_CREATE_ADDR_FAILED |
1699                                         UNIQUE_ID_NOT_BY_CARD;
1700                 return 0;
1701         }
1702
1703         iob = qeth_get_ipacmd_buffer(card, IPA_CMD_CREATE_ADDR,
1704                                      QETH_PROT_IPV6);
1705         cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
1706         *((__u16 *) &cmd->data.create_destroy_addr.unique_id[6]) =
1707                         card->info.unique_id;
1708
1709         rc = qeth_send_ipa_cmd(card, iob, qeth_l3_get_unique_id_cb, NULL);
1710         return rc;
1711 }
1712
1713 static int
1714 qeth_diags_trace_cb(struct qeth_card *card, struct qeth_reply *reply,
1715                             unsigned long data)
1716 {
1717         struct qeth_ipa_cmd        *cmd;
1718         __u16 rc;
1719
1720         QETH_DBF_TEXT(SETUP, 2, "diastrcb");
1721
1722         cmd = (struct qeth_ipa_cmd *)data;
1723         rc = cmd->hdr.return_code;
1724         if (rc)
1725                 QETH_CARD_TEXT_(card, 2, "dxter%x", rc);
1726         switch (cmd->data.diagass.action) {
1727         case QETH_DIAGS_CMD_TRACE_QUERY:
1728                 break;
1729         case QETH_DIAGS_CMD_TRACE_DISABLE:
1730                 switch (rc) {
1731                 case 0:
1732                 case IPA_RC_INVALID_SUBCMD:
1733                         card->info.promisc_mode = SET_PROMISC_MODE_OFF;
1734                         dev_info(&card->gdev->dev, "The HiperSockets network "
1735                                 "traffic analyzer is deactivated\n");
1736                         break;
1737                 default:
1738                         break;
1739                 }
1740                 break;
1741         case QETH_DIAGS_CMD_TRACE_ENABLE:
1742                 switch (rc) {
1743                 case 0:
1744                         card->info.promisc_mode = SET_PROMISC_MODE_ON;
1745                         dev_info(&card->gdev->dev, "The HiperSockets network "
1746                                 "traffic analyzer is activated\n");
1747                         break;
1748                 case IPA_RC_HARDWARE_AUTH_ERROR:
1749                         dev_warn(&card->gdev->dev, "The device is not "
1750                                 "authorized to run as a HiperSockets network "
1751                                 "traffic analyzer\n");
1752                         break;
1753                 case IPA_RC_TRACE_ALREADY_ACTIVE:
1754                         dev_warn(&card->gdev->dev, "A HiperSockets "
1755                                 "network traffic analyzer is already "
1756                                 "active in the HiperSockets LAN\n");
1757                         break;
1758                 default:
1759                         break;
1760                 }
1761                 break;
1762         default:
1763                 QETH_DBF_MESSAGE(2, "Unknown sniffer action (0x%04x) on %s\n",
1764                         cmd->data.diagass.action, QETH_CARD_IFNAME(card));
1765         }
1766
1767         return 0;
1768 }
1769
1770 static int
1771 qeth_diags_trace(struct qeth_card *card, enum qeth_diags_trace_cmds diags_cmd)
1772 {
1773         struct qeth_cmd_buffer *iob;
1774         struct qeth_ipa_cmd    *cmd;
1775
1776         QETH_DBF_TEXT(SETUP, 2, "diagtrac");
1777
1778         iob = qeth_get_ipacmd_buffer(card, IPA_CMD_SET_DIAG_ASS, 0);
1779         cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
1780         cmd->data.diagass.subcmd_len = 16;
1781         cmd->data.diagass.subcmd = QETH_DIAGS_CMD_TRACE;
1782         cmd->data.diagass.type = QETH_DIAGS_TYPE_HIPERSOCKET;
1783         cmd->data.diagass.action = diags_cmd;
1784         return qeth_send_ipa_cmd(card, iob, qeth_diags_trace_cb, NULL);
1785 }
1786
1787 static void qeth_l3_get_mac_for_ipm(__u32 ipm, char *mac,
1788                                 struct net_device *dev)
1789 {
1790         if (dev->type == ARPHRD_IEEE802_TR)
1791                 ip_tr_mc_map(ipm, mac);
1792         else
1793                 ip_eth_mc_map(ipm, mac);
1794 }
1795
1796 static void qeth_l3_add_mc(struct qeth_card *card, struct in_device *in4_dev)
1797 {
1798         struct qeth_ipaddr *ipm;
1799         struct ip_mc_list *im4;
1800         char buf[MAX_ADDR_LEN];
1801
1802         QETH_CARD_TEXT(card, 4, "addmc");
1803         for (im4 = rcu_dereference(in4_dev->mc_list); im4 != NULL;
1804              im4 = rcu_dereference(im4->next_rcu)) {
1805                 qeth_l3_get_mac_for_ipm(im4->multiaddr, buf, in4_dev->dev);
1806                 ipm = qeth_l3_get_addr_buffer(QETH_PROT_IPV4);
1807                 if (!ipm)
1808                         continue;
1809                 ipm->u.a4.addr = im4->multiaddr;
1810                 memcpy(ipm->mac, buf, OSA_ADDR_LEN);
1811                 ipm->is_multicast = 1;
1812                 if (!qeth_l3_add_ip(card, ipm))
1813                         kfree(ipm);
1814         }
1815 }
1816
1817 static void qeth_l3_add_vlan_mc(struct qeth_card *card)
1818 {
1819         struct in_device *in_dev;
1820         struct vlan_group *vg;
1821         int i;
1822
1823         QETH_CARD_TEXT(card, 4, "addmcvl");
1824         if (!qeth_is_supported(card, IPA_FULL_VLAN) || (card->vlangrp == NULL))
1825                 return;
1826
1827         vg = card->vlangrp;
1828         for (i = 0; i < VLAN_N_VID; i++) {
1829                 struct net_device *netdev = vlan_group_get_device(vg, i);
1830                 if (netdev == NULL ||
1831                     !(netdev->flags & IFF_UP))
1832                         continue;
1833                 in_dev = in_dev_get(netdev);
1834                 if (!in_dev)
1835                         continue;
1836                 rcu_read_lock();
1837                 qeth_l3_add_mc(card, in_dev);
1838                 rcu_read_unlock();
1839                 in_dev_put(in_dev);
1840         }
1841 }
1842
1843 static void qeth_l3_add_multicast_ipv4(struct qeth_card *card)
1844 {
1845         struct in_device *in4_dev;
1846
1847         QETH_CARD_TEXT(card, 4, "chkmcv4");
1848         in4_dev = in_dev_get(card->dev);
1849         if (in4_dev == NULL)
1850                 return;
1851         rcu_read_lock();
1852         qeth_l3_add_mc(card, in4_dev);
1853         qeth_l3_add_vlan_mc(card);
1854         rcu_read_unlock();
1855         in_dev_put(in4_dev);
1856 }
1857
1858 #ifdef CONFIG_QETH_IPV6
1859 static void qeth_l3_add_mc6(struct qeth_card *card, struct inet6_dev *in6_dev)
1860 {
1861         struct qeth_ipaddr *ipm;
1862         struct ifmcaddr6 *im6;
1863         char buf[MAX_ADDR_LEN];
1864
1865         QETH_CARD_TEXT(card, 4, "addmc6");
1866         for (im6 = in6_dev->mc_list; im6 != NULL; im6 = im6->next) {
1867                 ndisc_mc_map(&im6->mca_addr, buf, in6_dev->dev, 0);
1868                 ipm = qeth_l3_get_addr_buffer(QETH_PROT_IPV6);
1869                 if (!ipm)
1870                         continue;
1871                 ipm->is_multicast = 1;
1872                 memcpy(ipm->mac, buf, OSA_ADDR_LEN);
1873                 memcpy(&ipm->u.a6.addr, &im6->mca_addr.s6_addr,
1874                        sizeof(struct in6_addr));
1875                 if (!qeth_l3_add_ip(card, ipm))
1876                         kfree(ipm);
1877         }
1878 }
1879
1880 static void qeth_l3_add_vlan_mc6(struct qeth_card *card)
1881 {
1882         struct inet6_dev *in_dev;
1883         struct vlan_group *vg;
1884         int i;
1885
1886         QETH_CARD_TEXT(card, 4, "admc6vl");
1887         if (!qeth_is_supported(card, IPA_FULL_VLAN) || (card->vlangrp == NULL))
1888                 return;
1889
1890         vg = card->vlangrp;
1891         for (i = 0; i < VLAN_N_VID; i++) {
1892                 struct net_device *netdev = vlan_group_get_device(vg, i);
1893                 if (netdev == NULL ||
1894                     !(netdev->flags & IFF_UP))
1895                         continue;
1896                 in_dev = in6_dev_get(netdev);
1897                 if (!in_dev)
1898                         continue;
1899                 read_lock_bh(&in_dev->lock);
1900                 qeth_l3_add_mc6(card, in_dev);
1901                 read_unlock_bh(&in_dev->lock);
1902                 in6_dev_put(in_dev);
1903         }
1904 }
1905
1906 static void qeth_l3_add_multicast_ipv6(struct qeth_card *card)
1907 {
1908         struct inet6_dev *in6_dev;
1909
1910         QETH_CARD_TEXT(card, 4, "chkmcv6");
1911         if (!qeth_is_supported(card, IPA_IPV6))
1912                 return ;
1913         in6_dev = in6_dev_get(card->dev);
1914         if (in6_dev == NULL)
1915                 return;
1916         read_lock_bh(&in6_dev->lock);
1917         qeth_l3_add_mc6(card, in6_dev);
1918         qeth_l3_add_vlan_mc6(card);
1919         read_unlock_bh(&in6_dev->lock);
1920         in6_dev_put(in6_dev);
1921 }
1922 #endif /* CONFIG_QETH_IPV6 */
1923
1924 static void qeth_l3_free_vlan_addresses4(struct qeth_card *card,
1925                         unsigned short vid)
1926 {
1927         struct in_device *in_dev;
1928         struct in_ifaddr *ifa;
1929         struct qeth_ipaddr *addr;
1930
1931         QETH_CARD_TEXT(card, 4, "frvaddr4");
1932
1933         in_dev = in_dev_get(vlan_group_get_device(card->vlangrp, vid));
1934         if (!in_dev)
1935                 return;
1936         for (ifa = in_dev->ifa_list; ifa; ifa = ifa->ifa_next) {
1937                 addr = qeth_l3_get_addr_buffer(QETH_PROT_IPV4);
1938                 if (addr) {
1939                         addr->u.a4.addr = ifa->ifa_address;
1940                         addr->u.a4.mask = ifa->ifa_mask;
1941                         addr->type = QETH_IP_TYPE_NORMAL;
1942                         if (!qeth_l3_delete_ip(card, addr))
1943                                 kfree(addr);
1944                 }
1945         }
1946         in_dev_put(in_dev);
1947 }
1948
1949 static void qeth_l3_free_vlan_addresses6(struct qeth_card *card,
1950                         unsigned short vid)
1951 {
1952 #ifdef CONFIG_QETH_IPV6
1953         struct inet6_dev *in6_dev;
1954         struct inet6_ifaddr *ifa;
1955         struct qeth_ipaddr *addr;
1956
1957         QETH_CARD_TEXT(card, 4, "frvaddr6");
1958
1959         in6_dev = in6_dev_get(vlan_group_get_device(card->vlangrp, vid));
1960         if (!in6_dev)
1961                 return;
1962         list_for_each_entry(ifa, &in6_dev->addr_list, if_list) {
1963                 addr = qeth_l3_get_addr_buffer(QETH_PROT_IPV6);
1964                 if (addr) {
1965                         memcpy(&addr->u.a6.addr, &ifa->addr,
1966                                sizeof(struct in6_addr));
1967                         addr->u.a6.pfxlen = ifa->prefix_len;
1968                         addr->type = QETH_IP_TYPE_NORMAL;
1969                         if (!qeth_l3_delete_ip(card, addr))
1970                                 kfree(addr);
1971                 }
1972         }
1973         in6_dev_put(in6_dev);
1974 #endif /* CONFIG_QETH_IPV6 */
1975 }
1976
1977 static void qeth_l3_free_vlan_addresses(struct qeth_card *card,
1978                         unsigned short vid)
1979 {
1980         if (!card->vlangrp)
1981                 return;
1982         qeth_l3_free_vlan_addresses4(card, vid);
1983         qeth_l3_free_vlan_addresses6(card, vid);
1984 }
1985
1986 static void qeth_l3_vlan_rx_register(struct net_device *dev,
1987                         struct vlan_group *grp)
1988 {
1989         struct qeth_card *card = dev->ml_priv;
1990         unsigned long flags;
1991
1992         QETH_CARD_TEXT(card, 4, "vlanreg");
1993         spin_lock_irqsave(&card->vlanlock, flags);
1994         card->vlangrp = grp;
1995         spin_unlock_irqrestore(&card->vlanlock, flags);
1996 }
1997
1998 static void qeth_l3_vlan_rx_add_vid(struct net_device *dev, unsigned short vid)
1999 {
2000         return;
2001 }
2002
2003 static void qeth_l3_vlan_rx_kill_vid(struct net_device *dev, unsigned short vid)
2004 {
2005         struct qeth_card *card = dev->ml_priv;
2006         unsigned long flags;
2007
2008         QETH_CARD_TEXT_(card, 4, "kid:%d", vid);
2009         if (qeth_wait_for_threads(card, QETH_RECOVER_THREAD)) {
2010                 QETH_CARD_TEXT(card, 3, "kidREC");
2011                 return;
2012         }
2013         spin_lock_irqsave(&card->vlanlock, flags);
2014         /* unregister IP addresses of vlan device */
2015         qeth_l3_free_vlan_addresses(card, vid);
2016         vlan_group_set_device(card->vlangrp, vid, NULL);
2017         spin_unlock_irqrestore(&card->vlanlock, flags);
2018         qeth_l3_set_multicast_list(card->dev);
2019 }
2020
2021 static inline int qeth_l3_rebuild_skb(struct qeth_card *card,
2022                         struct sk_buff *skb, struct qeth_hdr *hdr,
2023                         unsigned short *vlan_id)
2024 {
2025         __be16 prot;
2026         struct iphdr *ip_hdr;
2027         unsigned char tg_addr[MAX_ADDR_LEN];
2028         int is_vlan = 0;
2029
2030         if (!(hdr->hdr.l3.flags & QETH_HDR_PASSTHRU)) {
2031                 prot = htons((hdr->hdr.l3.flags & QETH_HDR_IPV6)? ETH_P_IPV6 :
2032                               ETH_P_IP);
2033                 switch (hdr->hdr.l3.flags & QETH_HDR_CAST_MASK) {
2034                 case QETH_CAST_MULTICAST:
2035                         switch (prot) {
2036 #ifdef CONFIG_QETH_IPV6
2037                         case __constant_htons(ETH_P_IPV6):
2038                                 ndisc_mc_map((struct in6_addr *)
2039                                      skb->data + 24,
2040                                      tg_addr, card->dev, 0);
2041                                 break;
2042 #endif
2043                         case __constant_htons(ETH_P_IP):
2044                                 ip_hdr = (struct iphdr *)skb->data;
2045                                 (card->dev->type == ARPHRD_IEEE802_TR) ?
2046                                 ip_tr_mc_map(ip_hdr->daddr, tg_addr):
2047                                 ip_eth_mc_map(ip_hdr->daddr, tg_addr);
2048                                 break;
2049                         default:
2050                                 memcpy(tg_addr, card->dev->broadcast,
2051                                         card->dev->addr_len);
2052                         }
2053                         card->stats.multicast++;
2054                         skb->pkt_type = PACKET_MULTICAST;
2055                         break;
2056                 case QETH_CAST_BROADCAST:
2057                         memcpy(tg_addr, card->dev->broadcast,
2058                                 card->dev->addr_len);
2059                         card->stats.multicast++;
2060                         skb->pkt_type = PACKET_BROADCAST;
2061                         break;
2062                 case QETH_CAST_UNICAST:
2063                 case QETH_CAST_ANYCAST:
2064                 case QETH_CAST_NOCAST:
2065                 default:
2066                         if (card->options.sniffer)
2067                                 skb->pkt_type = PACKET_OTHERHOST;
2068                         else
2069                                 skb->pkt_type = PACKET_HOST;
2070                         memcpy(tg_addr, card->dev->dev_addr,
2071                                 card->dev->addr_len);
2072                 }
2073                 if (hdr->hdr.l3.ext_flags & QETH_HDR_EXT_SRC_MAC_ADDR)
2074                         card->dev->header_ops->create(skb, card->dev, prot,
2075                                 tg_addr, &hdr->hdr.l3.dest_addr[2],
2076                                 card->dev->addr_len);
2077                 else
2078                         card->dev->header_ops->create(skb, card->dev, prot,
2079                                 tg_addr, "FAKELL", card->dev->addr_len);
2080         }
2081
2082 #ifdef CONFIG_TR
2083         if (card->dev->type == ARPHRD_IEEE802_TR)
2084                 skb->protocol = tr_type_trans(skb, card->dev);
2085         else
2086 #endif
2087                 skb->protocol = eth_type_trans(skb, card->dev);
2088
2089         if (hdr->hdr.l3.ext_flags &
2090             (QETH_HDR_EXT_VLAN_FRAME | QETH_HDR_EXT_INCLUDE_VLAN_TAG)) {
2091                 *vlan_id = (hdr->hdr.l3.ext_flags & QETH_HDR_EXT_VLAN_FRAME) ?
2092                  hdr->hdr.l3.vlan_id : *((u16 *)&hdr->hdr.l3.dest_addr[12]);
2093                 is_vlan = 1;
2094         }
2095
2096         switch (card->options.checksum_type) {
2097         case SW_CHECKSUMMING:
2098                 skb->ip_summed = CHECKSUM_NONE;
2099                 break;
2100         case NO_CHECKSUMMING:
2101                 skb->ip_summed = CHECKSUM_UNNECESSARY;
2102                 break;
2103         case HW_CHECKSUMMING:
2104                 if ((hdr->hdr.l3.ext_flags &
2105                     (QETH_HDR_EXT_CSUM_HDR_REQ |
2106                      QETH_HDR_EXT_CSUM_TRANSP_REQ)) ==
2107                     (QETH_HDR_EXT_CSUM_HDR_REQ |
2108                      QETH_HDR_EXT_CSUM_TRANSP_REQ))
2109                         skb->ip_summed = CHECKSUM_UNNECESSARY;
2110                 else
2111                         skb->ip_summed = CHECKSUM_NONE;
2112         }
2113
2114         return is_vlan;
2115 }
2116
2117 static int qeth_l3_process_inbound_buffer(struct qeth_card *card,
2118                                 int budget, int *done)
2119 {
2120         int work_done = 0;
2121         struct sk_buff *skb;
2122         struct qeth_hdr *hdr;
2123         __u16 vlan_tag = 0;
2124         int is_vlan;
2125         unsigned int len;
2126
2127         *done = 0;
2128         BUG_ON(!budget);
2129         while (budget) {
2130                 skb = qeth_core_get_next_skb(card,
2131                         card->qdio.in_q->bufs[card->rx.b_index].buffer,
2132                         &card->rx.b_element, &card->rx.e_offset, &hdr);
2133                 if (!skb) {
2134                         *done = 1;
2135                         break;
2136                 }
2137                 skb->dev = card->dev;
2138                 switch (hdr->hdr.l3.id) {
2139                 case QETH_HEADER_TYPE_LAYER3:
2140                         is_vlan = qeth_l3_rebuild_skb(card, skb, hdr,
2141                                                       &vlan_tag);
2142                         len = skb->len;
2143                         if (is_vlan && !card->options.sniffer)
2144                                 vlan_gro_receive(&card->napi, card->vlangrp,
2145                                         vlan_tag, skb);
2146                         else
2147                                 napi_gro_receive(&card->napi, skb);
2148                         break;
2149                 case QETH_HEADER_TYPE_LAYER2: /* for HiperSockets sniffer */
2150                         skb->pkt_type = PACKET_HOST;
2151                         skb->protocol = eth_type_trans(skb, skb->dev);
2152                         len = skb->len;
2153                         netif_receive_skb(skb);
2154                         break;
2155                 default:
2156                         dev_kfree_skb_any(skb);
2157                         QETH_CARD_TEXT(card, 3, "inbunkno");
2158                         QETH_DBF_HEX(CTRL, 3, hdr, QETH_DBF_CTRL_LEN);
2159                         continue;
2160                 }
2161                 work_done++;
2162                 budget--;
2163                 card->stats.rx_packets++;
2164                 card->stats.rx_bytes += len;
2165         }
2166         return work_done;
2167 }
2168
2169 static int qeth_l3_poll(struct napi_struct *napi, int budget)
2170 {
2171         struct qeth_card *card = container_of(napi, struct qeth_card, napi);
2172         int work_done = 0;
2173         struct qeth_qdio_buffer *buffer;
2174         int done;
2175         int new_budget = budget;
2176
2177         if (card->options.performance_stats) {
2178                 card->perf_stats.inbound_cnt++;
2179                 card->perf_stats.inbound_start_time = qeth_get_micros();
2180         }
2181
2182         while (1) {
2183                 if (!card->rx.b_count) {
2184                         card->rx.qdio_err = 0;
2185                         card->rx.b_count = qdio_get_next_buffers(
2186                                 card->data.ccwdev, 0, &card->rx.b_index,
2187                                 &card->rx.qdio_err);
2188                         if (card->rx.b_count <= 0) {
2189                                 card->rx.b_count = 0;
2190                                 break;
2191                         }
2192                         card->rx.b_element =
2193                                 &card->qdio.in_q->bufs[card->rx.b_index]
2194                                 .buffer->element[0];
2195                         card->rx.e_offset = 0;
2196                 }
2197
2198                 while (card->rx.b_count) {
2199                         buffer = &card->qdio.in_q->bufs[card->rx.b_index];
2200                         if (!(card->rx.qdio_err &&
2201                             qeth_check_qdio_errors(card, buffer->buffer,
2202                             card->rx.qdio_err, "qinerr")))
2203                                 work_done += qeth_l3_process_inbound_buffer(
2204                                         card, new_budget, &done);
2205                         else
2206                                 done = 1;
2207
2208                         if (done) {
2209                                 if (card->options.performance_stats)
2210                                         card->perf_stats.bufs_rec++;
2211                                 qeth_put_buffer_pool_entry(card,
2212                                         buffer->pool_entry);
2213                                 qeth_queue_input_buffer(card, card->rx.b_index);
2214                                 card->rx.b_count--;
2215                                 if (card->rx.b_count) {
2216                                         card->rx.b_index =
2217                                                 (card->rx.b_index + 1) %
2218                                                 QDIO_MAX_BUFFERS_PER_Q;
2219                                         card->rx.b_element =
2220                                                 &card->qdio.in_q
2221                                                 ->bufs[card->rx.b_index]
2222                                                 .buffer->element[0];
2223                                         card->rx.e_offset = 0;
2224                                 }
2225                         }
2226
2227                         if (work_done >= budget)
2228                                 goto out;
2229                         else
2230                                 new_budget = budget - work_done;
2231                 }
2232         }
2233
2234         napi_complete(napi);
2235         if (qdio_start_irq(card->data.ccwdev, 0))
2236                 napi_schedule(&card->napi);
2237 out:
2238         if (card->options.performance_stats)
2239                 card->perf_stats.inbound_time += qeth_get_micros() -
2240                         card->perf_stats.inbound_start_time;
2241         return work_done;
2242 }
2243
2244 static int qeth_l3_verify_vlan_dev(struct net_device *dev,
2245                         struct qeth_card *card)
2246 {
2247         int rc = 0;
2248         struct vlan_group *vg;
2249         int i;
2250
2251         vg = card->vlangrp;
2252         if (!vg)
2253                 return rc;
2254
2255         for (i = 0; i < VLAN_N_VID; i++) {
2256                 if (vlan_group_get_device(vg, i) == dev) {
2257                         rc = QETH_VLAN_CARD;
2258                         break;
2259                 }
2260         }
2261
2262         if (rc && !(vlan_dev_real_dev(dev)->ml_priv == (void *)card))
2263                 return 0;
2264
2265         return rc;
2266 }
2267
2268 static int qeth_l3_verify_dev(struct net_device *dev)
2269 {
2270         struct qeth_card *card;
2271         unsigned long flags;
2272         int rc = 0;
2273
2274         read_lock_irqsave(&qeth_core_card_list.rwlock, flags);
2275         list_for_each_entry(card, &qeth_core_card_list.list, list) {
2276                 if (card->dev == dev) {
2277                         rc = QETH_REAL_CARD;
2278                         break;
2279                 }
2280                 rc = qeth_l3_verify_vlan_dev(dev, card);
2281                 if (rc)
2282                         break;
2283         }
2284         read_unlock_irqrestore(&qeth_core_card_list.rwlock, flags);
2285
2286         return rc;
2287 }
2288
2289 static struct qeth_card *qeth_l3_get_card_from_dev(struct net_device *dev)
2290 {
2291         struct qeth_card *card = NULL;
2292         int rc;
2293
2294         rc = qeth_l3_verify_dev(dev);
2295         if (rc == QETH_REAL_CARD)
2296                 card = dev->ml_priv;
2297         else if (rc == QETH_VLAN_CARD)
2298                 card = vlan_dev_real_dev(dev)->ml_priv;
2299         if (card && card->options.layer2)
2300                 card = NULL;
2301         if (card)
2302                 QETH_CARD_TEXT_(card, 4, "%d", rc);
2303         return card ;
2304 }
2305
2306 static int qeth_l3_stop_card(struct qeth_card *card, int recovery_mode)
2307 {
2308         int rc = 0;
2309
2310         QETH_DBF_TEXT(SETUP, 2, "stopcard");
2311         QETH_DBF_HEX(SETUP, 2, &card, sizeof(void *));
2312
2313         qeth_set_allowed_threads(card, 0, 1);
2314         if (card->options.sniffer &&
2315             (card->info.promisc_mode == SET_PROMISC_MODE_ON))
2316                 qeth_diags_trace(card, QETH_DIAGS_CMD_TRACE_DISABLE);
2317         if (card->read.state == CH_STATE_UP &&
2318             card->write.state == CH_STATE_UP &&
2319             (card->state == CARD_STATE_UP)) {
2320                 if (recovery_mode)
2321                         qeth_l3_stop(card->dev);
2322                 else {
2323                         rtnl_lock();
2324                         dev_close(card->dev);
2325                         rtnl_unlock();
2326                 }
2327                 if (!card->use_hard_stop) {
2328                         rc = qeth_send_stoplan(card);
2329                         if (rc)
2330                                 QETH_DBF_TEXT_(SETUP, 2, "1err%d", rc);
2331                 }
2332                 card->state = CARD_STATE_SOFTSETUP;
2333         }
2334         if (card->state == CARD_STATE_SOFTSETUP) {
2335                 qeth_l3_clear_ip_list(card, !card->use_hard_stop, 1);
2336                 qeth_clear_ipacmd_list(card);
2337                 card->state = CARD_STATE_HARDSETUP;
2338         }
2339         if (card->state == CARD_STATE_HARDSETUP) {
2340                 if (!card->use_hard_stop &&
2341                     (card->info.type != QETH_CARD_TYPE_IQD)) {
2342                         rc = qeth_l3_put_unique_id(card);
2343                         if (rc)
2344                                 QETH_DBF_TEXT_(SETUP, 2, "2err%d", rc);
2345                 }
2346                 qeth_qdio_clear_card(card, 0);
2347                 qeth_clear_qdio_buffers(card);
2348                 qeth_clear_working_pool_list(card);
2349                 card->state = CARD_STATE_DOWN;
2350         }
2351         if (card->state == CARD_STATE_DOWN) {
2352                 qeth_clear_cmd_buffers(&card->read);
2353                 qeth_clear_cmd_buffers(&card->write);
2354         }
2355         card->use_hard_stop = 0;
2356         return rc;
2357 }
2358
2359 /*
2360  * test for and Switch promiscuous mode (on or off)
2361  *  either for guestlan or HiperSocket Sniffer
2362  */
2363 static void
2364 qeth_l3_handle_promisc_mode(struct qeth_card *card)
2365 {
2366         struct net_device *dev = card->dev;
2367
2368         if (((dev->flags & IFF_PROMISC) &&
2369              (card->info.promisc_mode == SET_PROMISC_MODE_ON)) ||
2370             (!(dev->flags & IFF_PROMISC) &&
2371              (card->info.promisc_mode == SET_PROMISC_MODE_OFF)))
2372                 return;
2373
2374         if (card->info.guestlan) {              /* Guestlan trace */
2375                 if (qeth_adp_supported(card, IPA_SETADP_SET_PROMISC_MODE))
2376                         qeth_setadp_promisc_mode(card);
2377         } else if (card->options.sniffer &&     /* HiperSockets trace */
2378                    qeth_adp_supported(card, IPA_SETADP_SET_DIAG_ASSIST)) {
2379                 if (dev->flags & IFF_PROMISC) {
2380                         QETH_CARD_TEXT(card, 3, "+promisc");
2381                         qeth_diags_trace(card, QETH_DIAGS_CMD_TRACE_ENABLE);
2382                 } else {
2383                         QETH_CARD_TEXT(card, 3, "-promisc");
2384                         qeth_diags_trace(card, QETH_DIAGS_CMD_TRACE_DISABLE);
2385                 }
2386         }
2387 }
2388
2389 static void qeth_l3_set_multicast_list(struct net_device *dev)
2390 {
2391         struct qeth_card *card = dev->ml_priv;
2392
2393         QETH_CARD_TEXT(card, 3, "setmulti");
2394         if (qeth_threads_running(card, QETH_RECOVER_THREAD) &&
2395             (card->state != CARD_STATE_UP))
2396                 return;
2397         if (!card->options.sniffer) {
2398                 qeth_l3_delete_mc_addresses(card);
2399                 qeth_l3_add_multicast_ipv4(card);
2400 #ifdef CONFIG_QETH_IPV6
2401                 qeth_l3_add_multicast_ipv6(card);
2402 #endif
2403                 qeth_l3_set_ip_addr_list(card);
2404                 if (!qeth_adp_supported(card, IPA_SETADP_SET_PROMISC_MODE))
2405                         return;
2406         }
2407         qeth_l3_handle_promisc_mode(card);
2408 }
2409
2410 static const char *qeth_l3_arp_get_error_cause(int *rc)
2411 {
2412         switch (*rc) {
2413         case QETH_IPA_ARP_RC_FAILED:
2414                 *rc = -EIO;
2415                 return "operation failed";
2416         case QETH_IPA_ARP_RC_NOTSUPP:
2417                 *rc = -EOPNOTSUPP;
2418                 return "operation not supported";
2419         case QETH_IPA_ARP_RC_OUT_OF_RANGE:
2420                 *rc = -EINVAL;
2421                 return "argument out of range";
2422         case QETH_IPA_ARP_RC_Q_NOTSUPP:
2423                 *rc = -EOPNOTSUPP;
2424                 return "query operation not supported";
2425         case QETH_IPA_ARP_RC_Q_NO_DATA:
2426                 *rc = -ENOENT;
2427                 return "no query data available";
2428         default:
2429                 return "unknown error";
2430         }
2431 }
2432
2433 static int qeth_l3_arp_set_no_entries(struct qeth_card *card, int no_entries)
2434 {
2435         int tmp;
2436         int rc;
2437
2438         QETH_CARD_TEXT(card, 3, "arpstnoe");
2439
2440         /*
2441          * currently GuestLAN only supports the ARP assist function
2442          * IPA_CMD_ASS_ARP_QUERY_INFO, but not IPA_CMD_ASS_ARP_SET_NO_ENTRIES;
2443          * thus we say EOPNOTSUPP for this ARP function
2444          */
2445         if (card->info.guestlan)
2446                 return -EOPNOTSUPP;
2447         if (!qeth_is_supported(card, IPA_ARP_PROCESSING)) {
2448                 return -EOPNOTSUPP;
2449         }
2450         rc = qeth_l3_send_simple_setassparms(card, IPA_ARP_PROCESSING,
2451                                           IPA_CMD_ASS_ARP_SET_NO_ENTRIES,
2452                                           no_entries);
2453         if (rc) {
2454                 tmp = rc;
2455                 QETH_DBF_MESSAGE(2, "Could not set number of ARP entries on "
2456                         "%s: %s (0x%x/%d)\n", QETH_CARD_IFNAME(card),
2457                         qeth_l3_arp_get_error_cause(&rc), tmp, tmp);
2458         }
2459         return rc;
2460 }
2461
2462 static __u32 get_arp_entry_size(struct qeth_card *card,
2463                         struct qeth_arp_query_data *qdata,
2464                         struct qeth_arp_entrytype *type, __u8 strip_entries)
2465 {
2466         __u32 rc;
2467         __u8 is_hsi;
2468
2469         is_hsi = qdata->reply_bits == 5;
2470         if (type->ip == QETHARP_IP_ADDR_V4) {
2471                 QETH_CARD_TEXT(card, 4, "arpev4");
2472                 if (strip_entries) {
2473                         rc = is_hsi ? sizeof(struct qeth_arp_qi_entry5_short) :
2474                                 sizeof(struct qeth_arp_qi_entry7_short);
2475                 } else {
2476                         rc = is_hsi ? sizeof(struct qeth_arp_qi_entry5) :
2477                                 sizeof(struct qeth_arp_qi_entry7);
2478                 }
2479         } else if (type->ip == QETHARP_IP_ADDR_V6) {
2480                 QETH_CARD_TEXT(card, 4, "arpev6");
2481                 if (strip_entries) {
2482                         rc = is_hsi ?
2483                                 sizeof(struct qeth_arp_qi_entry5_short_ipv6) :
2484                                 sizeof(struct qeth_arp_qi_entry7_short_ipv6);
2485                 } else {
2486                         rc = is_hsi ?
2487                                 sizeof(struct qeth_arp_qi_entry5_ipv6) :
2488                                 sizeof(struct qeth_arp_qi_entry7_ipv6);
2489                 }
2490         } else {
2491                 QETH_CARD_TEXT(card, 4, "arpinv");
2492                 rc = 0;
2493         }
2494
2495         return rc;
2496 }
2497
2498 static int arpentry_matches_prot(struct qeth_arp_entrytype *type, __u16 prot)
2499 {
2500         return (type->ip == QETHARP_IP_ADDR_V4 && prot == QETH_PROT_IPV4) ||
2501                 (type->ip == QETHARP_IP_ADDR_V6 && prot == QETH_PROT_IPV6);
2502 }
2503
2504 static int qeth_l3_arp_query_cb(struct qeth_card *card,
2505                 struct qeth_reply *reply, unsigned long data)
2506 {
2507         struct qeth_ipa_cmd *cmd;
2508         struct qeth_arp_query_data *qdata;
2509         struct qeth_arp_query_info *qinfo;
2510         int i;
2511         int e;
2512         int entrybytes_done;
2513         int stripped_bytes;
2514         __u8 do_strip_entries;
2515
2516         QETH_CARD_TEXT(card, 3, "arpquecb");
2517
2518         qinfo = (struct qeth_arp_query_info *) reply->param;
2519         cmd = (struct qeth_ipa_cmd *) data;
2520         QETH_CARD_TEXT_(card, 4, "%i", cmd->hdr.prot_version);
2521         if (cmd->hdr.return_code) {
2522                 QETH_CARD_TEXT(card, 4, "arpcberr");
2523                 QETH_CARD_TEXT_(card, 4, "%i", cmd->hdr.return_code);
2524                 return 0;
2525         }
2526         if (cmd->data.setassparms.hdr.return_code) {
2527                 cmd->hdr.return_code = cmd->data.setassparms.hdr.return_code;
2528                 QETH_CARD_TEXT(card, 4, "setaperr");
2529                 QETH_CARD_TEXT_(card, 4, "%i", cmd->hdr.return_code);
2530                 return 0;
2531         }
2532         qdata = &cmd->data.setassparms.data.query_arp;
2533         QETH_CARD_TEXT_(card, 4, "anoen%i", qdata->no_entries);
2534
2535         do_strip_entries = (qinfo->mask_bits & QETH_QARP_STRIP_ENTRIES) > 0;
2536         stripped_bytes = do_strip_entries ? QETH_QARP_MEDIASPECIFIC_BYTES : 0;
2537         entrybytes_done = 0;
2538         for (e = 0; e < qdata->no_entries; ++e) {
2539                 char *cur_entry;
2540                 __u32 esize;
2541                 struct qeth_arp_entrytype *etype;
2542
2543                 cur_entry = &qdata->data + entrybytes_done;
2544                 etype = &((struct qeth_arp_qi_entry5 *) cur_entry)->type;
2545                 if (!arpentry_matches_prot(etype, cmd->hdr.prot_version)) {
2546                         QETH_CARD_TEXT(card, 4, "pmis");
2547                         QETH_CARD_TEXT_(card, 4, "%i", etype->ip);
2548                         break;
2549                 }
2550                 esize = get_arp_entry_size(card, qdata, etype,
2551                         do_strip_entries);
2552                 QETH_CARD_TEXT_(card, 5, "esz%i", esize);
2553                 if (!esize)
2554                         break;
2555
2556                 if ((qinfo->udata_len - qinfo->udata_offset) < esize) {
2557                         QETH_CARD_TEXT_(card, 4, "qaer3%i", -ENOMEM);
2558                         cmd->hdr.return_code = -ENOMEM;
2559                         goto out_error;
2560                 }
2561
2562                 memcpy(qinfo->udata + qinfo->udata_offset,
2563                         &qdata->data + entrybytes_done + stripped_bytes,
2564                         esize);
2565                 entrybytes_done += esize + stripped_bytes;
2566                 qinfo->udata_offset += esize;
2567                 ++qinfo->no_entries;
2568         }
2569         /* check if all replies received ... */
2570         if (cmd->data.setassparms.hdr.seq_no <
2571             cmd->data.setassparms.hdr.number_of_replies)
2572                 return 1;
2573         QETH_CARD_TEXT_(card, 4, "nove%i", qinfo->no_entries);
2574         memcpy(qinfo->udata, &qinfo->no_entries, 4);
2575         /* keep STRIP_ENTRIES flag so the user program can distinguish
2576          * stripped entries from normal ones */
2577         if (qinfo->mask_bits & QETH_QARP_STRIP_ENTRIES)
2578                 qdata->reply_bits |= QETH_QARP_STRIP_ENTRIES;
2579         memcpy(qinfo->udata + QETH_QARP_MASK_OFFSET, &qdata->reply_bits, 2);
2580         QETH_CARD_TEXT_(card, 4, "rc%i", 0);
2581         return 0;
2582 out_error:
2583         i = 0;
2584         memcpy(qinfo->udata, &i, 4);
2585         return 0;
2586 }
2587
2588 static int qeth_l3_send_ipa_arp_cmd(struct qeth_card *card,
2589                 struct qeth_cmd_buffer *iob, int len,
2590                 int (*reply_cb)(struct qeth_card *, struct qeth_reply *,
2591                         unsigned long),
2592                 void *reply_param)
2593 {
2594         QETH_CARD_TEXT(card, 4, "sendarp");
2595
2596         memcpy(iob->data, IPA_PDU_HEADER, IPA_PDU_HEADER_SIZE);
2597         memcpy(QETH_IPA_CMD_DEST_ADDR(iob->data),
2598                &card->token.ulp_connection_r, QETH_MPC_TOKEN_LENGTH);
2599         return qeth_send_control_data(card, IPA_PDU_HEADER_SIZE + len, iob,
2600                                       reply_cb, reply_param);
2601 }
2602
2603 static int qeth_l3_query_arp_cache_info(struct qeth_card *card,
2604         enum qeth_prot_versions prot,
2605         struct qeth_arp_query_info *qinfo)
2606 {
2607         struct qeth_cmd_buffer *iob;
2608         struct qeth_ipa_cmd *cmd;
2609         int tmp;
2610         int rc;
2611
2612         QETH_CARD_TEXT_(card, 3, "qarpipv%i", prot);
2613
2614         iob = qeth_l3_get_setassparms_cmd(card, IPA_ARP_PROCESSING,
2615                         IPA_CMD_ASS_ARP_QUERY_INFO,
2616                         sizeof(struct qeth_arp_query_data) - sizeof(char),
2617                         prot);
2618         cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
2619         cmd->data.setassparms.data.query_arp.request_bits = 0x000F;
2620         cmd->data.setassparms.data.query_arp.reply_bits = 0;
2621         cmd->data.setassparms.data.query_arp.no_entries = 0;
2622         rc = qeth_l3_send_ipa_arp_cmd(card, iob,
2623                            QETH_SETASS_BASE_LEN+QETH_ARP_CMD_LEN,
2624                            qeth_l3_arp_query_cb, (void *)qinfo);
2625         if (rc) {
2626                 tmp = rc;
2627                 QETH_DBF_MESSAGE(2,
2628                         "Error while querying ARP cache on %s: %s "
2629                         "(0x%x/%d)\n", QETH_CARD_IFNAME(card),
2630                         qeth_l3_arp_get_error_cause(&rc), tmp, tmp);
2631         }
2632
2633         return rc;
2634 }
2635
2636 static int qeth_l3_arp_query(struct qeth_card *card, char __user *udata)
2637 {
2638         struct qeth_arp_query_info qinfo = {0, };
2639         int rc;
2640
2641         QETH_CARD_TEXT(card, 3, "arpquery");
2642
2643         if (!qeth_is_supported(card,/*IPA_QUERY_ARP_ADDR_INFO*/
2644                                IPA_ARP_PROCESSING)) {
2645                 QETH_CARD_TEXT(card, 3, "arpqnsup");
2646                 rc = -EOPNOTSUPP;
2647                 goto out;
2648         }
2649         /* get size of userspace buffer and mask_bits -> 6 bytes */
2650         if (copy_from_user(&qinfo, udata, 6)) {
2651                 rc = -EFAULT;
2652                 goto out;
2653         }
2654         qinfo.udata = kzalloc(qinfo.udata_len, GFP_KERNEL);
2655         if (!qinfo.udata) {
2656                 rc = -ENOMEM;
2657                 goto out;
2658         }
2659         qinfo.udata_offset = QETH_QARP_ENTRIES_OFFSET;
2660         rc = qeth_l3_query_arp_cache_info(card, QETH_PROT_IPV4, &qinfo);
2661         if (rc) {
2662                 if (copy_to_user(udata, qinfo.udata, 4))
2663                         rc = -EFAULT;
2664                         goto free_and_out;
2665         } else {
2666 #ifdef CONFIG_QETH_IPV6
2667                 if (qinfo.mask_bits & QETH_QARP_WITH_IPV6) {
2668                         /* fails in case of GuestLAN QDIO mode */
2669                         qeth_l3_query_arp_cache_info(card, QETH_PROT_IPV6,
2670                                 &qinfo);
2671                 }
2672 #endif
2673                 if (copy_to_user(udata, qinfo.udata, qinfo.udata_len)) {
2674                         QETH_CARD_TEXT(card, 4, "qactf");
2675                         rc = -EFAULT;
2676                         goto free_and_out;
2677                 }
2678                 QETH_CARD_TEXT_(card, 4, "qacts");
2679         }
2680 free_and_out:
2681         kfree(qinfo.udata);
2682 out:
2683         return rc;
2684 }
2685
2686 static int qeth_l3_arp_add_entry(struct qeth_card *card,
2687                                 struct qeth_arp_cache_entry *entry)
2688 {
2689         struct qeth_cmd_buffer *iob;
2690         char buf[16];
2691         int tmp;
2692         int rc;
2693
2694         QETH_CARD_TEXT(card, 3, "arpadent");
2695
2696         /*
2697          * currently GuestLAN only supports the ARP assist function
2698          * IPA_CMD_ASS_ARP_QUERY_INFO, but not IPA_CMD_ASS_ARP_ADD_ENTRY;
2699          * thus we say EOPNOTSUPP for this ARP function
2700          */
2701         if (card->info.guestlan)
2702                 return -EOPNOTSUPP;
2703         if (!qeth_is_supported(card, IPA_ARP_PROCESSING)) {
2704                 return -EOPNOTSUPP;
2705         }
2706
2707         iob = qeth_l3_get_setassparms_cmd(card, IPA_ARP_PROCESSING,
2708                                        IPA_CMD_ASS_ARP_ADD_ENTRY,
2709                                        sizeof(struct qeth_arp_cache_entry),
2710                                        QETH_PROT_IPV4);
2711         rc = qeth_l3_send_setassparms(card, iob,
2712                                    sizeof(struct qeth_arp_cache_entry),
2713                                    (unsigned long) entry,
2714                                    qeth_l3_default_setassparms_cb, NULL);
2715         if (rc) {
2716                 tmp = rc;
2717                 qeth_l3_ipaddr4_to_string((u8 *)entry->ipaddr, buf);
2718                 QETH_DBF_MESSAGE(2, "Could not add ARP entry for address %s "
2719                         "on %s: %s (0x%x/%d)\n", buf, QETH_CARD_IFNAME(card),
2720                         qeth_l3_arp_get_error_cause(&rc), tmp, tmp);
2721         }
2722         return rc;
2723 }
2724
2725 static int qeth_l3_arp_remove_entry(struct qeth_card *card,
2726                                 struct qeth_arp_cache_entry *entry)
2727 {
2728         struct qeth_cmd_buffer *iob;
2729         char buf[16] = {0, };
2730         int tmp;
2731         int rc;
2732
2733         QETH_CARD_TEXT(card, 3, "arprment");
2734
2735         /*
2736          * currently GuestLAN only supports the ARP assist function
2737          * IPA_CMD_ASS_ARP_QUERY_INFO, but not IPA_CMD_ASS_ARP_REMOVE_ENTRY;
2738          * thus we say EOPNOTSUPP for this ARP function
2739          */
2740         if (card->info.guestlan)
2741                 return -EOPNOTSUPP;
2742         if (!qeth_is_supported(card, IPA_ARP_PROCESSING)) {
2743                 return -EOPNOTSUPP;
2744         }
2745         memcpy(buf, entry, 12);
2746         iob = qeth_l3_get_setassparms_cmd(card, IPA_ARP_PROCESSING,
2747                                        IPA_CMD_ASS_ARP_REMOVE_ENTRY,
2748                                        12,
2749                                        QETH_PROT_IPV4);
2750         rc = qeth_l3_send_setassparms(card, iob,
2751                                    12, (unsigned long)buf,
2752                                    qeth_l3_default_setassparms_cb, NULL);
2753         if (rc) {
2754                 tmp = rc;
2755                 memset(buf, 0, 16);
2756                 qeth_l3_ipaddr4_to_string((u8 *)entry->ipaddr, buf);
2757                 QETH_DBF_MESSAGE(2, "Could not delete ARP entry for address %s"
2758                         " on %s: %s (0x%x/%d)\n", buf, QETH_CARD_IFNAME(card),
2759                         qeth_l3_arp_get_error_cause(&rc), tmp, tmp);
2760         }
2761         return rc;
2762 }
2763
2764 static int qeth_l3_arp_flush_cache(struct qeth_card *card)
2765 {
2766         int rc;
2767         int tmp;
2768
2769         QETH_CARD_TEXT(card, 3, "arpflush");
2770
2771         /*
2772          * currently GuestLAN only supports the ARP assist function
2773          * IPA_CMD_ASS_ARP_QUERY_INFO, but not IPA_CMD_ASS_ARP_FLUSH_CACHE;
2774          * thus we say EOPNOTSUPP for this ARP function
2775         */
2776         if (card->info.guestlan || (card->info.type == QETH_CARD_TYPE_IQD))
2777                 return -EOPNOTSUPP;
2778         if (!qeth_is_supported(card, IPA_ARP_PROCESSING)) {
2779                 return -EOPNOTSUPP;
2780         }
2781         rc = qeth_l3_send_simple_setassparms(card, IPA_ARP_PROCESSING,
2782                                           IPA_CMD_ASS_ARP_FLUSH_CACHE, 0);
2783         if (rc) {
2784                 tmp = rc;
2785                 QETH_DBF_MESSAGE(2, "Could not flush ARP cache on %s: %s "
2786                         "(0x%x/%d)\n", QETH_CARD_IFNAME(card),
2787                         qeth_l3_arp_get_error_cause(&rc), tmp, tmp);
2788         }
2789         return rc;
2790 }
2791
2792 static int qeth_l3_do_ioctl(struct net_device *dev, struct ifreq *rq, int cmd)
2793 {
2794         struct qeth_card *card = dev->ml_priv;
2795         struct qeth_arp_cache_entry arp_entry;
2796         struct mii_ioctl_data *mii_data;
2797         int rc = 0;
2798
2799         if (!card)
2800                 return -ENODEV;
2801
2802         if ((card->state != CARD_STATE_UP) &&
2803                 (card->state != CARD_STATE_SOFTSETUP))
2804                 return -ENODEV;
2805
2806         switch (cmd) {
2807         case SIOC_QETH_ARP_SET_NO_ENTRIES:
2808                 if (!capable(CAP_NET_ADMIN)) {
2809                         rc = -EPERM;
2810                         break;
2811                 }
2812                 rc = qeth_l3_arp_set_no_entries(card, rq->ifr_ifru.ifru_ivalue);
2813                 break;
2814         case SIOC_QETH_ARP_QUERY_INFO:
2815                 if (!capable(CAP_NET_ADMIN)) {
2816                         rc = -EPERM;
2817                         break;
2818                 }
2819                 rc = qeth_l3_arp_query(card, rq->ifr_ifru.ifru_data);
2820                 break;
2821         case SIOC_QETH_ARP_ADD_ENTRY:
2822                 if (!capable(CAP_NET_ADMIN)) {
2823                         rc = -EPERM;
2824                         break;
2825                 }
2826                 if (copy_from_user(&arp_entry, rq->ifr_ifru.ifru_data,
2827                                    sizeof(struct qeth_arp_cache_entry)))
2828                         rc = -EFAULT;
2829                 else
2830                         rc = qeth_l3_arp_add_entry(card, &arp_entry);
2831                 break;
2832         case SIOC_QETH_ARP_REMOVE_ENTRY:
2833                 if (!capable(CAP_NET_ADMIN)) {
2834                         rc = -EPERM;
2835                         break;
2836                 }
2837                 if (copy_from_user(&arp_entry, rq->ifr_ifru.ifru_data,
2838                                    sizeof(struct qeth_arp_cache_entry)))
2839                         rc = -EFAULT;
2840                 else
2841                         rc = qeth_l3_arp_remove_entry(card, &arp_entry);
2842                 break;
2843         case SIOC_QETH_ARP_FLUSH_CACHE:
2844                 if (!capable(CAP_NET_ADMIN)) {
2845                         rc = -EPERM;
2846                         break;
2847                 }
2848                 rc = qeth_l3_arp_flush_cache(card);
2849                 break;
2850         case SIOC_QETH_ADP_SET_SNMP_CONTROL:
2851                 rc = qeth_snmp_command(card, rq->ifr_ifru.ifru_data);
2852                 break;
2853         case SIOC_QETH_GET_CARD_TYPE:
2854                 if ((card->info.type == QETH_CARD_TYPE_OSD ||
2855                      card->info.type == QETH_CARD_TYPE_OSX) &&
2856                     !card->info.guestlan)
2857                         return 1;
2858                 return 0;
2859                 break;
2860         case SIOCGMIIPHY:
2861                 mii_data = if_mii(rq);
2862                 mii_data->phy_id = 0;
2863                 break;
2864         case SIOCGMIIREG:
2865                 mii_data = if_mii(rq);
2866                 if (mii_data->phy_id != 0)
2867                         rc = -EINVAL;
2868                 else
2869                         mii_data->val_out = qeth_mdio_read(dev,
2870                                                         mii_data->phy_id,
2871                                                         mii_data->reg_num);
2872                 break;
2873         default:
2874                 rc = -EOPNOTSUPP;
2875         }
2876         if (rc)
2877                 QETH_CARD_TEXT_(card, 2, "ioce%d", rc);
2878         return rc;
2879 }
2880
2881 int inline qeth_l3_get_cast_type(struct qeth_card *card, struct sk_buff *skb)
2882 {
2883         int cast_type = RTN_UNSPEC;
2884
2885         if (skb_dst(skb) && skb_dst(skb)->neighbour) {
2886                 cast_type = skb_dst(skb)->neighbour->type;
2887                 if ((cast_type == RTN_BROADCAST) ||
2888                     (cast_type == RTN_MULTICAST) ||
2889                     (cast_type == RTN_ANYCAST))
2890                         return cast_type;
2891                 else
2892                         return RTN_UNSPEC;
2893         }
2894         /* try something else */
2895         if (skb->protocol == ETH_P_IPV6)
2896                 return (skb_network_header(skb)[24] == 0xff) ?
2897                                 RTN_MULTICAST : 0;
2898         else if (skb->protocol == ETH_P_IP)
2899                 return ((skb_network_header(skb)[16] & 0xf0) == 0xe0) ?
2900                                 RTN_MULTICAST : 0;
2901         /* ... */
2902         if (!memcmp(skb->data, skb->dev->broadcast, 6))
2903                 return RTN_BROADCAST;
2904         else {
2905                 u16 hdr_mac;
2906
2907                 hdr_mac = *((u16 *)skb->data);
2908                 /* tr multicast? */
2909                 switch (card->info.link_type) {
2910                 case QETH_LINK_TYPE_HSTR:
2911                 case QETH_LINK_TYPE_LANE_TR:
2912                         if ((hdr_mac == QETH_TR_MAC_NC) ||
2913                             (hdr_mac == QETH_TR_MAC_C))
2914                                 return RTN_MULTICAST;
2915                         break;
2916                 /* eth or so multicast? */
2917                 default:
2918                 if ((hdr_mac == QETH_ETH_MAC_V4) ||
2919                             (hdr_mac == QETH_ETH_MAC_V6))
2920                                 return RTN_MULTICAST;
2921                 }
2922         }
2923         return cast_type;
2924 }
2925
2926 static void qeth_l3_fill_header(struct qeth_card *card, struct qeth_hdr *hdr,
2927                 struct sk_buff *skb, int ipv, int cast_type)
2928 {
2929         memset(hdr, 0, sizeof(struct qeth_hdr));
2930         hdr->hdr.l3.id = QETH_HEADER_TYPE_LAYER3;
2931         hdr->hdr.l3.ext_flags = 0;
2932
2933         /*
2934          * before we're going to overwrite this location with next hop ip.
2935          * v6 uses passthrough, v4 sets the tag in the QDIO header.
2936          */
2937         if (card->vlangrp && vlan_tx_tag_present(skb)) {
2938                 if ((ipv == 4) || (card->info.type == QETH_CARD_TYPE_IQD))
2939                         hdr->hdr.l3.ext_flags = QETH_HDR_EXT_VLAN_FRAME;
2940                 else
2941                         hdr->hdr.l3.ext_flags = QETH_HDR_EXT_INCLUDE_VLAN_TAG;
2942                 hdr->hdr.l3.vlan_id = vlan_tx_tag_get(skb);
2943         }
2944
2945         hdr->hdr.l3.length = skb->len - sizeof(struct qeth_hdr);
2946         if (ipv == 4) {
2947                 /* IPv4 */
2948                 hdr->hdr.l3.flags = qeth_l3_get_qeth_hdr_flags4(cast_type);
2949                 memset(hdr->hdr.l3.dest_addr, 0, 12);
2950                 if ((skb_dst(skb)) && (skb_dst(skb)->neighbour)) {
2951                         *((u32 *) (&hdr->hdr.l3.dest_addr[12])) =
2952                             *((u32 *) skb_dst(skb)->neighbour->primary_key);
2953                 } else {
2954                         /* fill in destination address used in ip header */
2955                         *((u32 *) (&hdr->hdr.l3.dest_addr[12])) =
2956                                                         ip_hdr(skb)->daddr;
2957                 }
2958         } else if (ipv == 6) {
2959                 /* IPv6 */
2960                 hdr->hdr.l3.flags = qeth_l3_get_qeth_hdr_flags6(cast_type);
2961                 if (card->info.type == QETH_CARD_TYPE_IQD)
2962                         hdr->hdr.l3.flags &= ~QETH_HDR_PASSTHRU;
2963                 if ((skb_dst(skb)) && (skb_dst(skb)->neighbour)) {
2964                         memcpy(hdr->hdr.l3.dest_addr,
2965                                skb_dst(skb)->neighbour->primary_key, 16);
2966                 } else {
2967                         /* fill in destination address used in ip header */
2968                         memcpy(hdr->hdr.l3.dest_addr,
2969                                &ipv6_hdr(skb)->daddr, 16);
2970                 }
2971         } else {
2972                 /* passthrough */
2973                 if ((skb->dev->type == ARPHRD_IEEE802_TR) &&
2974                         !memcmp(skb->data + sizeof(struct qeth_hdr) +
2975                         sizeof(__u16), skb->dev->broadcast, 6)) {
2976                         hdr->hdr.l3.flags = QETH_CAST_BROADCAST |
2977                                                 QETH_HDR_PASSTHRU;
2978                 } else if (!memcmp(skb->data + sizeof(struct qeth_hdr),
2979                             skb->dev->broadcast, 6)) {
2980                         /* broadcast? */
2981                         hdr->hdr.l3.flags = QETH_CAST_BROADCAST |
2982                                                 QETH_HDR_PASSTHRU;
2983                 } else {
2984                         hdr->hdr.l3.flags = (cast_type == RTN_MULTICAST) ?
2985                                 QETH_CAST_MULTICAST | QETH_HDR_PASSTHRU :
2986                                 QETH_CAST_UNICAST | QETH_HDR_PASSTHRU;
2987                 }
2988         }
2989 }
2990
2991 static inline void qeth_l3_hdr_csum(struct qeth_card *card,
2992                 struct qeth_hdr *hdr, struct sk_buff *skb)
2993 {
2994         struct iphdr *iph = ip_hdr(skb);
2995
2996         /* tcph->check contains already the pseudo hdr checksum
2997          * so just set the header flags
2998          */
2999         if (iph->protocol == IPPROTO_UDP)
3000                 hdr->hdr.l3.ext_flags |= QETH_HDR_EXT_UDP;
3001         hdr->hdr.l3.ext_flags |= QETH_HDR_EXT_CSUM_TRANSP_REQ;
3002         if (card->options.performance_stats)
3003                 card->perf_stats.tx_csum++;
3004 }
3005
3006 static void qeth_tso_fill_header(struct qeth_card *card,
3007                 struct qeth_hdr *qhdr, struct sk_buff *skb)
3008 {
3009         struct qeth_hdr_tso *hdr = (struct qeth_hdr_tso *)qhdr;
3010         struct tcphdr *tcph = tcp_hdr(skb);
3011         struct iphdr *iph = ip_hdr(skb);
3012         struct ipv6hdr *ip6h = ipv6_hdr(skb);
3013
3014         /*fix header to TSO values ...*/
3015         hdr->hdr.hdr.l3.id = QETH_HEADER_TYPE_TSO;
3016         hdr->hdr.hdr.l3.length = skb->len - sizeof(struct qeth_hdr_tso);
3017         /*set values which are fix for the first approach ...*/
3018         hdr->ext.hdr_tot_len = (__u16) sizeof(struct qeth_hdr_ext_tso);
3019         hdr->ext.imb_hdr_no  = 1;
3020         hdr->ext.hdr_type    = 1;
3021         hdr->ext.hdr_version = 1;
3022         hdr->ext.hdr_len     = 28;
3023         /*insert non-fix values */
3024         hdr->ext.mss = skb_shinfo(skb)->gso_size;
3025         hdr->ext.dg_hdr_len = (__u16)(iph->ihl*4 + tcph->doff*4);
3026         hdr->ext.payload_len = (__u16)(skb->len - hdr->ext.dg_hdr_len -
3027                                        sizeof(struct qeth_hdr_tso));
3028         tcph->check = 0;
3029         if (skb->protocol == ETH_P_IPV6) {
3030                 ip6h->payload_len = 0;
3031                 tcph->check = ~csum_ipv6_magic(&ip6h->saddr, &ip6h->daddr,
3032                                                0, IPPROTO_TCP, 0);
3033         } else {
3034                 /*OSA want us to set these values ...*/
3035                 tcph->check = ~csum_tcpudp_magic(iph->saddr, iph->daddr,
3036                                          0, IPPROTO_TCP, 0);
3037                 iph->tot_len = 0;
3038                 iph->check = 0;
3039         }
3040 }
3041
3042 static inline int qeth_l3_tso_elements(struct sk_buff *skb)
3043 {
3044         unsigned long tcpd = (unsigned long)tcp_hdr(skb) +
3045                 tcp_hdr(skb)->doff * 4;
3046         int tcpd_len = skb->len - (tcpd - (unsigned long)skb->data);
3047         int elements = PFN_UP(tcpd + tcpd_len - 1) - PFN_DOWN(tcpd);
3048         elements += skb_shinfo(skb)->nr_frags;
3049         return elements;
3050 }
3051
3052 static int qeth_l3_hard_start_xmit(struct sk_buff *skb, struct net_device *dev)
3053 {
3054         int rc;
3055         u16 *tag;
3056         struct qeth_hdr *hdr = NULL;
3057         int elements_needed = 0;
3058         int elems;
3059         struct qeth_card *card = dev->ml_priv;
3060         struct sk_buff *new_skb = NULL;
3061         int ipv = qeth_get_ip_version(skb);
3062         int cast_type = qeth_l3_get_cast_type(card, skb);
3063         struct qeth_qdio_out_q *queue = card->qdio.out_qs
3064                 [qeth_get_priority_queue(card, skb, ipv, cast_type)];
3065         int tx_bytes = skb->len;
3066         enum qeth_large_send_types large_send = QETH_LARGE_SEND_NO;
3067         int data_offset = -1;
3068         int nr_frags;
3069
3070         if (((card->info.type == QETH_CARD_TYPE_IQD) && (!ipv)) ||
3071              card->options.sniffer)
3072                         goto tx_drop;
3073
3074         if ((card->state != CARD_STATE_UP) || !card->lan_online) {
3075                 card->stats.tx_carrier_errors++;
3076                 goto tx_drop;
3077         }
3078
3079         if ((cast_type == RTN_BROADCAST) &&
3080             (card->info.broadcast_capable == 0))
3081                 goto tx_drop;
3082
3083         if (card->options.performance_stats) {
3084                 card->perf_stats.outbound_cnt++;
3085                 card->perf_stats.outbound_start_time = qeth_get_micros();
3086         }
3087
3088         if (skb_is_gso(skb))
3089                 large_send = card->options.large_send;
3090
3091         if ((card->info.type == QETH_CARD_TYPE_IQD) && (!large_send) &&
3092             (skb_shinfo(skb)->nr_frags == 0)) {
3093                 new_skb = skb;
3094                 data_offset = ETH_HLEN;
3095                 hdr = kmem_cache_alloc(qeth_core_header_cache, GFP_ATOMIC);
3096                 if (!hdr)
3097                         goto tx_drop;
3098                 elements_needed++;
3099         } else {
3100                 /* create a clone with writeable headroom */
3101                 new_skb = skb_realloc_headroom(skb, sizeof(struct qeth_hdr_tso)
3102                                         + VLAN_HLEN);
3103                 if (!new_skb)
3104                         goto tx_drop;
3105         }
3106
3107         if (card->info.type == QETH_CARD_TYPE_IQD) {
3108                 if (data_offset < 0)
3109                         skb_pull(new_skb, ETH_HLEN);
3110         } else {
3111                 if (ipv == 4) {
3112                         if (card->dev->type == ARPHRD_IEEE802_TR)
3113                                 skb_pull(new_skb, TR_HLEN);
3114                         else
3115                                 skb_pull(new_skb, ETH_HLEN);
3116                 }
3117
3118                 if (ipv != 4 && card->vlangrp &&
3119                                 vlan_tx_tag_present(new_skb)) {
3120                         skb_push(new_skb, VLAN_HLEN);
3121                         skb_copy_to_linear_data(new_skb, new_skb->data + 4, 4);
3122                         skb_copy_to_linear_data_offset(new_skb, 4,
3123                                 new_skb->data + 8, 4);
3124                         skb_copy_to_linear_data_offset(new_skb, 8,
3125                                 new_skb->data + 12, 4);
3126                         tag = (u16 *)(new_skb->data + 12);
3127                         *tag = __constant_htons(ETH_P_8021Q);
3128                         *(tag + 1) = htons(vlan_tx_tag_get(new_skb));
3129                         new_skb->vlan_tci = 0;
3130                 }
3131         }
3132
3133         netif_stop_queue(dev);
3134
3135         /* fix hardware limitation: as long as we do not have sbal
3136          * chaining we can not send long frag lists
3137          */
3138         if (large_send == QETH_LARGE_SEND_TSO) {
3139                 if (qeth_l3_tso_elements(new_skb) + 1 > 16) {
3140                         if (skb_linearize(new_skb))
3141                                 goto tx_drop;
3142                         if (card->options.performance_stats)
3143                                 card->perf_stats.tx_lin++;
3144                 }
3145         }
3146
3147         if ((large_send == QETH_LARGE_SEND_TSO) &&
3148             (cast_type == RTN_UNSPEC)) {
3149                 hdr = (struct qeth_hdr *)skb_push(new_skb,
3150                                                 sizeof(struct qeth_hdr_tso));
3151                 memset(hdr, 0, sizeof(struct qeth_hdr_tso));
3152                 qeth_l3_fill_header(card, hdr, new_skb, ipv, cast_type);
3153                 qeth_tso_fill_header(card, hdr, new_skb);
3154                 elements_needed++;
3155         } else {
3156                 if (data_offset < 0) {
3157                         hdr = (struct qeth_hdr *)skb_push(new_skb,
3158                                                 sizeof(struct qeth_hdr));
3159                         qeth_l3_fill_header(card, hdr, new_skb, ipv,
3160                                                 cast_type);
3161                 } else {
3162                         qeth_l3_fill_header(card, hdr, new_skb, ipv,
3163                                                 cast_type);
3164                         hdr->hdr.l3.length = new_skb->len - data_offset;
3165                 }
3166
3167                 if (skb->ip_summed == CHECKSUM_PARTIAL)
3168                         qeth_l3_hdr_csum(card, hdr, new_skb);
3169         }
3170
3171         elems = qeth_get_elements_no(card, (void *)hdr, new_skb,
3172                                                  elements_needed);
3173         if (!elems) {
3174                 if (data_offset >= 0)
3175                         kmem_cache_free(qeth_core_header_cache, hdr);
3176                 goto tx_drop;
3177         }
3178         elements_needed += elems;
3179         nr_frags = skb_shinfo(new_skb)->nr_frags;
3180
3181         if (card->info.type != QETH_CARD_TYPE_IQD) {
3182                 int len;
3183                 if (large_send == QETH_LARGE_SEND_TSO)
3184                         len = ((unsigned long)tcp_hdr(new_skb) +
3185                                 tcp_hdr(new_skb)->doff * 4) -
3186                                 (unsigned long)new_skb->data;
3187                 else
3188                         len = sizeof(struct qeth_hdr_layer3);
3189
3190                 if (qeth_hdr_chk_and_bounce(new_skb, len))
3191                         goto tx_drop;
3192                 rc = qeth_do_send_packet(card, queue, new_skb, hdr,
3193                                          elements_needed);
3194         } else
3195                 rc = qeth_do_send_packet_fast(card, queue, new_skb, hdr,
3196                                         elements_needed, data_offset, 0);
3197
3198         if (!rc) {
3199                 card->stats.tx_packets++;
3200                 card->stats.tx_bytes += tx_bytes;
3201                 if (new_skb != skb)
3202                         dev_kfree_skb_any(skb);
3203                 if (card->options.performance_stats) {
3204                         if (large_send != QETH_LARGE_SEND_NO) {
3205                                 card->perf_stats.large_send_bytes += tx_bytes;
3206                                 card->perf_stats.large_send_cnt++;
3207                         }
3208                         if (nr_frags) {
3209                                 card->perf_stats.sg_skbs_sent++;
3210                                 /* nr_frags + skb->data */
3211                                 card->perf_stats.sg_frags_sent += nr_frags + 1;
3212                         }
3213                 }
3214                 rc = NETDEV_TX_OK;
3215         } else {
3216                 if (data_offset >= 0)
3217                         kmem_cache_free(qeth_core_header_cache, hdr);
3218
3219                 if (rc == -EBUSY) {
3220                         if (new_skb != skb)
3221                                 dev_kfree_skb_any(new_skb);
3222                         return NETDEV_TX_BUSY;
3223                 } else
3224                         goto tx_drop;
3225         }
3226
3227         netif_wake_queue(dev);
3228         if (card->options.performance_stats)
3229                 card->perf_stats.outbound_time += qeth_get_micros() -
3230                         card->perf_stats.outbound_start_time;
3231         return rc;
3232
3233 tx_drop:
3234         card->stats.tx_dropped++;
3235         card->stats.tx_errors++;
3236         if ((new_skb != skb) && new_skb)
3237                 dev_kfree_skb_any(new_skb);
3238         dev_kfree_skb_any(skb);
3239         netif_wake_queue(dev);
3240         return NETDEV_TX_OK;
3241 }
3242
3243 static int qeth_l3_open(struct net_device *dev)
3244 {
3245         struct qeth_card *card = dev->ml_priv;
3246         int rc = 0;
3247
3248         QETH_CARD_TEXT(card, 4, "qethopen");
3249         if (card->state != CARD_STATE_SOFTSETUP)
3250                 return -ENODEV;
3251         card->data.state = CH_STATE_UP;
3252         card->state = CARD_STATE_UP;
3253         netif_start_queue(dev);
3254
3255         if (qdio_stop_irq(card->data.ccwdev, 0) >= 0) {
3256                 napi_enable(&card->napi);
3257                 napi_schedule(&card->napi);
3258         } else
3259                 rc = -EIO;
3260         return rc;
3261 }
3262
3263 static int qeth_l3_stop(struct net_device *dev)
3264 {
3265         struct qeth_card *card = dev->ml_priv;
3266
3267         QETH_CARD_TEXT(card, 4, "qethstop");
3268         netif_tx_disable(dev);
3269         if (card->state == CARD_STATE_UP) {
3270                 card->state = CARD_STATE_SOFTSETUP;
3271                 napi_disable(&card->napi);
3272         }
3273         return 0;
3274 }
3275
3276 static u32 qeth_l3_ethtool_get_rx_csum(struct net_device *dev)
3277 {
3278         struct qeth_card *card = dev->ml_priv;
3279
3280         return (card->options.checksum_type == HW_CHECKSUMMING);
3281 }
3282
3283 static int qeth_l3_ethtool_set_rx_csum(struct net_device *dev, u32 data)
3284 {
3285         struct qeth_card *card = dev->ml_priv;
3286         enum qeth_checksum_types csum_type;
3287
3288         if (data)
3289                 csum_type = HW_CHECKSUMMING;
3290         else
3291                 csum_type = SW_CHECKSUMMING;
3292
3293         return qeth_l3_set_rx_csum(card, csum_type);
3294 }
3295
3296 static int qeth_l3_ethtool_set_tso(struct net_device *dev, u32 data)
3297 {
3298         struct qeth_card *card = dev->ml_priv;
3299         int rc = 0;
3300
3301         if (data) {
3302                 rc = qeth_l3_set_large_send(card, QETH_LARGE_SEND_TSO);
3303         } else {
3304                 dev->features &= ~NETIF_F_TSO;
3305                 card->options.large_send = QETH_LARGE_SEND_NO;
3306         }
3307         return rc;
3308 }
3309
3310 static int qeth_l3_ethtool_set_tx_csum(struct net_device *dev, u32 data)
3311 {
3312         struct qeth_card *card = dev->ml_priv;
3313
3314         if (data) {
3315                 if (qeth_is_supported(card, IPA_OUTBOUND_CHECKSUM))
3316                         dev->features |= NETIF_F_IP_CSUM;
3317                 else
3318                         return -EPERM;
3319         } else
3320                 dev->features &= ~NETIF_F_IP_CSUM;
3321
3322         return 0;
3323 }
3324
3325 static const struct ethtool_ops qeth_l3_ethtool_ops = {
3326         .get_link = ethtool_op_get_link,
3327         .get_tx_csum = ethtool_op_get_tx_csum,
3328         .set_tx_csum = qeth_l3_ethtool_set_tx_csum,
3329         .get_rx_csum = qeth_l3_ethtool_get_rx_csum,
3330         .set_rx_csum = qeth_l3_ethtool_set_rx_csum,
3331         .get_sg      = ethtool_op_get_sg,
3332         .set_sg      = ethtool_op_set_sg,
3333         .get_tso     = ethtool_op_get_tso,
3334         .set_tso     = qeth_l3_ethtool_set_tso,
3335         .get_strings = qeth_core_get_strings,
3336         .get_ethtool_stats = qeth_core_get_ethtool_stats,
3337         .get_sset_count = qeth_core_get_sset_count,
3338         .get_drvinfo = qeth_core_get_drvinfo,
3339         .get_settings = qeth_core_ethtool_get_settings,
3340 };
3341
3342 /*
3343  * we need NOARP for IPv4 but we want neighbor solicitation for IPv6. Setting
3344  * NOARP on the netdevice is no option because it also turns off neighbor
3345  * solicitation. For IPv4 we install a neighbor_setup function. We don't want
3346  * arp resolution but we want the hard header (packet socket will work
3347  * e.g. tcpdump)
3348  */
3349 static int qeth_l3_neigh_setup_noarp(struct neighbour *n)
3350 {
3351         n->nud_state = NUD_NOARP;
3352         memcpy(n->ha, "FAKELL", 6);
3353         n->output = n->ops->connected_output;
3354         return 0;
3355 }
3356
3357 static int
3358 qeth_l3_neigh_setup(struct net_device *dev, struct neigh_parms *np)
3359 {
3360         if (np->tbl->family == AF_INET)
3361                 np->neigh_setup = qeth_l3_neigh_setup_noarp;
3362
3363         return 0;
3364 }
3365
3366 static const struct net_device_ops qeth_l3_netdev_ops = {
3367         .ndo_open               = qeth_l3_open,
3368         .ndo_stop               = qeth_l3_stop,
3369         .ndo_get_stats          = qeth_get_stats,
3370         .ndo_start_xmit         = qeth_l3_hard_start_xmit,
3371         .ndo_validate_addr      = eth_validate_addr,
3372         .ndo_set_multicast_list = qeth_l3_set_multicast_list,
3373         .ndo_do_ioctl           = qeth_l3_do_ioctl,
3374         .ndo_change_mtu         = qeth_change_mtu,
3375         .ndo_vlan_rx_register   = qeth_l3_vlan_rx_register,
3376         .ndo_vlan_rx_add_vid    = qeth_l3_vlan_rx_add_vid,
3377         .ndo_vlan_rx_kill_vid   = qeth_l3_vlan_rx_kill_vid,
3378         .ndo_tx_timeout         = qeth_tx_timeout,
3379 };
3380
3381 static const struct net_device_ops qeth_l3_osa_netdev_ops = {
3382         .ndo_open               = qeth_l3_open,
3383         .ndo_stop               = qeth_l3_stop,
3384         .ndo_get_stats          = qeth_get_stats,
3385         .ndo_start_xmit         = qeth_l3_hard_start_xmit,
3386         .ndo_validate_addr      = eth_validate_addr,
3387         .ndo_set_multicast_list = qeth_l3_set_multicast_list,
3388         .ndo_do_ioctl           = qeth_l3_do_ioctl,
3389         .ndo_change_mtu         = qeth_change_mtu,
3390         .ndo_vlan_rx_register   = qeth_l3_vlan_rx_register,
3391         .ndo_vlan_rx_add_vid    = qeth_l3_vlan_rx_add_vid,
3392         .ndo_vlan_rx_kill_vid   = qeth_l3_vlan_rx_kill_vid,
3393         .ndo_tx_timeout         = qeth_tx_timeout,
3394         .ndo_neigh_setup        = qeth_l3_neigh_setup,
3395 };
3396
3397 static int qeth_l3_setup_netdev(struct qeth_card *card)
3398 {
3399         if (card->info.type == QETH_CARD_TYPE_OSD ||
3400             card->info.type == QETH_CARD_TYPE_OSX) {
3401                 if ((card->info.link_type == QETH_LINK_TYPE_LANE_TR) ||
3402                     (card->info.link_type == QETH_LINK_TYPE_HSTR)) {
3403 #ifdef CONFIG_TR
3404                         card->dev = alloc_trdev(0);
3405 #endif
3406                         if (!card->dev)
3407                                 return -ENODEV;
3408                         card->dev->netdev_ops = &qeth_l3_netdev_ops;
3409                 } else {
3410                         card->dev = alloc_etherdev(0);
3411                         if (!card->dev)
3412                                 return -ENODEV;
3413                         card->dev->netdev_ops = &qeth_l3_osa_netdev_ops;
3414
3415                         /*IPv6 address autoconfiguration stuff*/
3416                         qeth_l3_get_unique_id(card);
3417                         if (!(card->info.unique_id & UNIQUE_ID_NOT_BY_CARD))
3418                                 card->dev->dev_id = card->info.unique_id &
3419                                                          0xffff;
3420                 }
3421         } else if (card->info.type == QETH_CARD_TYPE_IQD) {
3422                 card->dev = alloc_netdev(0, "hsi%d", ether_setup);
3423                 if (!card->dev)
3424                         return -ENODEV;
3425                 card->dev->flags |= IFF_NOARP;
3426                 card->dev->netdev_ops = &qeth_l3_netdev_ops;
3427                 qeth_l3_iqd_read_initial_mac(card);
3428         } else
3429                 return -ENODEV;
3430
3431         card->dev->ml_priv = card;
3432         card->dev->watchdog_timeo = QETH_TX_TIMEOUT;
3433         card->dev->mtu = card->info.initial_mtu;
3434         SET_ETHTOOL_OPS(card->dev, &qeth_l3_ethtool_ops);
3435         card->dev->features |=  NETIF_F_HW_VLAN_TX |
3436                                 NETIF_F_HW_VLAN_RX |
3437                                 NETIF_F_HW_VLAN_FILTER;
3438         card->dev->priv_flags &= ~IFF_XMIT_DST_RELEASE;
3439         card->dev->gso_max_size = 15 * PAGE_SIZE;
3440
3441         SET_NETDEV_DEV(card->dev, &card->gdev->dev);
3442         netif_napi_add(card->dev, &card->napi, qeth_l3_poll, QETH_NAPI_WEIGHT);
3443         return register_netdev(card->dev);
3444 }
3445
3446 static int qeth_l3_probe_device(struct ccwgroup_device *gdev)
3447 {
3448         struct qeth_card *card = dev_get_drvdata(&gdev->dev);
3449
3450         qeth_l3_create_device_attributes(&gdev->dev);
3451         card->options.layer2 = 0;
3452         card->discipline.start_poll = qeth_qdio_start_poll;
3453         card->discipline.input_handler = (qdio_handler_t *)
3454                 qeth_qdio_input_handler;
3455         card->discipline.output_handler = (qdio_handler_t *)
3456                 qeth_qdio_output_handler;
3457         card->discipline.recover = qeth_l3_recover;
3458         return 0;
3459 }
3460
3461 static void qeth_l3_remove_device(struct ccwgroup_device *cgdev)
3462 {
3463         struct qeth_card *card = dev_get_drvdata(&cgdev->dev);
3464
3465         qeth_l3_remove_device_attributes(&cgdev->dev);
3466
3467         qeth_set_allowed_threads(card, 0, 1);
3468         wait_event(card->wait_q, qeth_threads_running(card, 0xffffffff) == 0);
3469
3470         if (cgdev->state == CCWGROUP_ONLINE) {
3471                 card->use_hard_stop = 1;
3472                 qeth_l3_set_offline(cgdev);
3473         }
3474
3475         if (card->dev) {
3476                 unregister_netdev(card->dev);
3477                 card->dev = NULL;
3478         }
3479
3480         qeth_l3_clear_ip_list(card, 0, 0);
3481         qeth_l3_clear_ipato_list(card);
3482         return;
3483 }
3484
3485 static int __qeth_l3_set_online(struct ccwgroup_device *gdev, int recovery_mode)
3486 {
3487         struct qeth_card *card = dev_get_drvdata(&gdev->dev);
3488         int rc = 0;
3489         enum qeth_card_states recover_flag;
3490
3491         BUG_ON(!card);
3492         mutex_lock(&card->discipline_mutex);
3493         mutex_lock(&card->conf_mutex);
3494         QETH_DBF_TEXT(SETUP, 2, "setonlin");
3495         QETH_DBF_HEX(SETUP, 2, &card, sizeof(void *));
3496
3497         recover_flag = card->state;
3498         rc = qeth_core_hardsetup_card(card);
3499         if (rc) {
3500                 QETH_DBF_TEXT_(SETUP, 2, "2err%d", rc);
3501                 rc = -ENODEV;
3502                 goto out_remove;
3503         }
3504
3505         qeth_l3_query_ipassists(card, QETH_PROT_IPV4);
3506
3507         if (!card->dev && qeth_l3_setup_netdev(card)) {
3508                 rc = -ENODEV;
3509                 goto out_remove;
3510         }
3511
3512         card->state = CARD_STATE_HARDSETUP;
3513         memset(&card->rx, 0, sizeof(struct qeth_rx));
3514         qeth_print_status_message(card);
3515
3516         /* softsetup */
3517         QETH_DBF_TEXT(SETUP, 2, "softsetp");
3518
3519         rc = qeth_send_startlan(card);
3520         if (rc) {
3521                 QETH_DBF_TEXT_(SETUP, 2, "1err%d", rc);
3522                 if (rc == 0xe080) {
3523                         dev_warn(&card->gdev->dev,
3524                                 "The LAN is offline\n");
3525                         card->lan_online = 0;
3526                         goto contin;
3527                 }
3528                 rc = -ENODEV;
3529                 goto out_remove;
3530         } else
3531                 card->lan_online = 1;
3532
3533 contin:
3534         rc = qeth_l3_setadapter_parms(card);
3535         if (rc)
3536                 QETH_DBF_TEXT_(SETUP, 2, "2err%d", rc);
3537         if (!card->options.sniffer) {
3538                 rc = qeth_l3_start_ipassists(card);
3539                 if (rc)
3540                         QETH_DBF_TEXT_(SETUP, 2, "3err%d", rc);
3541                 qeth_l3_set_large_send(card, card->options.large_send);
3542                 rc = qeth_l3_setrouting_v4(card);
3543                 if (rc)
3544                         QETH_DBF_TEXT_(SETUP, 2, "4err%d", rc);
3545                 rc = qeth_l3_setrouting_v6(card);
3546                 if (rc)
3547                         QETH_DBF_TEXT_(SETUP, 2, "5err%d", rc);
3548         }
3549         netif_tx_disable(card->dev);
3550
3551         rc = qeth_init_qdio_queues(card);
3552         if (rc) {
3553                 QETH_DBF_TEXT_(SETUP, 2, "6err%d", rc);
3554                 rc = -ENODEV;
3555                 goto out_remove;
3556         }
3557         card->state = CARD_STATE_SOFTSETUP;
3558
3559         qeth_set_allowed_threads(card, 0xffffffff, 0);
3560         qeth_l3_set_ip_addr_list(card);
3561         if (card->lan_online)
3562                 netif_carrier_on(card->dev);
3563         else
3564                 netif_carrier_off(card->dev);
3565         if (recover_flag == CARD_STATE_RECOVER) {
3566                 if (recovery_mode)
3567                         qeth_l3_open(card->dev);
3568                 else {
3569                         rtnl_lock();
3570                         dev_open(card->dev);
3571                         rtnl_unlock();
3572                 }
3573                 qeth_l3_set_multicast_list(card->dev);
3574         }
3575         /* let user_space know that device is online */
3576         kobject_uevent(&gdev->dev.kobj, KOBJ_CHANGE);
3577         mutex_unlock(&card->conf_mutex);
3578         mutex_unlock(&card->discipline_mutex);
3579         return 0;
3580 out_remove:
3581         card->use_hard_stop = 1;
3582         qeth_l3_stop_card(card, 0);
3583         ccw_device_set_offline(CARD_DDEV(card));
3584         ccw_device_set_offline(CARD_WDEV(card));
3585         ccw_device_set_offline(CARD_RDEV(card));
3586         if (recover_flag == CARD_STATE_RECOVER)
3587                 card->state = CARD_STATE_RECOVER;
3588         else
3589                 card->state = CARD_STATE_DOWN;
3590         mutex_unlock(&card->conf_mutex);
3591         mutex_unlock(&card->discipline_mutex);
3592         return rc;
3593 }
3594
3595 static int qeth_l3_set_online(struct ccwgroup_device *gdev)
3596 {
3597         return __qeth_l3_set_online(gdev, 0);
3598 }
3599
3600 static int __qeth_l3_set_offline(struct ccwgroup_device *cgdev,
3601                         int recovery_mode)
3602 {
3603         struct qeth_card *card = dev_get_drvdata(&cgdev->dev);
3604         int rc = 0, rc2 = 0, rc3 = 0;
3605         enum qeth_card_states recover_flag;
3606
3607         mutex_lock(&card->discipline_mutex);
3608         mutex_lock(&card->conf_mutex);
3609         QETH_DBF_TEXT(SETUP, 3, "setoffl");
3610         QETH_DBF_HEX(SETUP, 3, &card, sizeof(void *));
3611
3612         if (card->dev && netif_carrier_ok(card->dev))
3613                 netif_carrier_off(card->dev);
3614         recover_flag = card->state;
3615         qeth_l3_stop_card(card, recovery_mode);
3616         rc  = ccw_device_set_offline(CARD_DDEV(card));
3617         rc2 = ccw_device_set_offline(CARD_WDEV(card));
3618         rc3 = ccw_device_set_offline(CARD_RDEV(card));
3619         if (!rc)
3620                 rc = (rc2) ? rc2 : rc3;
3621         if (rc)
3622                 QETH_DBF_TEXT_(SETUP, 2, "1err%d", rc);
3623         if (recover_flag == CARD_STATE_UP)
3624                 card->state = CARD_STATE_RECOVER;
3625         /* let user_space know that device is offline */
3626         kobject_uevent(&cgdev->dev.kobj, KOBJ_CHANGE);
3627         mutex_unlock(&card->conf_mutex);
3628         mutex_unlock(&card->discipline_mutex);
3629         return 0;
3630 }
3631
3632 static int qeth_l3_set_offline(struct ccwgroup_device *cgdev)
3633 {
3634         return __qeth_l3_set_offline(cgdev, 0);
3635 }
3636
3637 static int qeth_l3_recover(void *ptr)
3638 {
3639         struct qeth_card *card;
3640         int rc = 0;
3641
3642         card = (struct qeth_card *) ptr;
3643         QETH_CARD_TEXT(card, 2, "recover1");
3644         QETH_CARD_HEX(card, 2, &card, sizeof(void *));
3645         if (!qeth_do_run_thread(card, QETH_RECOVER_THREAD))
3646                 return 0;
3647         QETH_CARD_TEXT(card, 2, "recover2");
3648         dev_warn(&card->gdev->dev,
3649                 "A recovery process has been started for the device\n");
3650         card->use_hard_stop = 1;
3651         __qeth_l3_set_offline(card->gdev, 1);
3652         rc = __qeth_l3_set_online(card->gdev, 1);
3653         if (!rc)
3654                 dev_info(&card->gdev->dev,
3655                         "Device successfully recovered!\n");
3656         else {
3657                 rtnl_lock();
3658                 dev_close(card->dev);
3659                 rtnl_unlock();
3660                 dev_warn(&card->gdev->dev, "The qeth device driver "
3661                         "failed to recover an error on the device\n");
3662         }
3663         qeth_clear_thread_start_bit(card, QETH_RECOVER_THREAD);
3664         qeth_clear_thread_running_bit(card, QETH_RECOVER_THREAD);
3665         return 0;
3666 }
3667
3668 static void qeth_l3_shutdown(struct ccwgroup_device *gdev)
3669 {
3670         struct qeth_card *card = dev_get_drvdata(&gdev->dev);
3671         qeth_l3_clear_ip_list(card, 0, 0);
3672         qeth_qdio_clear_card(card, 0);
3673         qeth_clear_qdio_buffers(card);
3674 }
3675
3676 static int qeth_l3_pm_suspend(struct ccwgroup_device *gdev)
3677 {
3678         struct qeth_card *card = dev_get_drvdata(&gdev->dev);
3679
3680         if (card->dev)
3681                 netif_device_detach(card->dev);
3682         qeth_set_allowed_threads(card, 0, 1);
3683         wait_event(card->wait_q, qeth_threads_running(card, 0xffffffff) == 0);
3684         if (gdev->state == CCWGROUP_OFFLINE)
3685                 return 0;
3686         if (card->state == CARD_STATE_UP) {
3687                 card->use_hard_stop = 1;
3688                 __qeth_l3_set_offline(card->gdev, 1);
3689         } else
3690                 __qeth_l3_set_offline(card->gdev, 0);
3691         return 0;
3692 }
3693
3694 static int qeth_l3_pm_resume(struct ccwgroup_device *gdev)
3695 {
3696         struct qeth_card *card = dev_get_drvdata(&gdev->dev);
3697         int rc = 0;
3698
3699         if (gdev->state == CCWGROUP_OFFLINE)
3700                 goto out;
3701
3702         if (card->state == CARD_STATE_RECOVER) {
3703                 rc = __qeth_l3_set_online(card->gdev, 1);
3704                 if (rc) {
3705                         rtnl_lock();
3706                         dev_close(card->dev);
3707                         rtnl_unlock();
3708                 }
3709         } else
3710                 rc = __qeth_l3_set_online(card->gdev, 0);
3711 out:
3712         qeth_set_allowed_threads(card, 0xffffffff, 0);
3713         if (card->dev)
3714                 netif_device_attach(card->dev);
3715         if (rc)
3716                 dev_warn(&card->gdev->dev, "The qeth device driver "
3717                         "failed to recover an error on the device\n");
3718         return rc;
3719 }
3720
3721 struct ccwgroup_driver qeth_l3_ccwgroup_driver = {
3722         .probe = qeth_l3_probe_device,
3723         .remove = qeth_l3_remove_device,
3724         .set_online = qeth_l3_set_online,
3725         .set_offline = qeth_l3_set_offline,
3726         .shutdown = qeth_l3_shutdown,
3727         .freeze = qeth_l3_pm_suspend,
3728         .thaw = qeth_l3_pm_resume,
3729         .restore = qeth_l3_pm_resume,
3730 };
3731 EXPORT_SYMBOL_GPL(qeth_l3_ccwgroup_driver);
3732
3733 static int qeth_l3_ip_event(struct notifier_block *this,
3734                             unsigned long event, void *ptr)
3735 {
3736         struct in_ifaddr *ifa = (struct in_ifaddr *)ptr;
3737         struct net_device *dev = (struct net_device *)ifa->ifa_dev->dev;
3738         struct qeth_ipaddr *addr;
3739         struct qeth_card *card;
3740
3741         if (dev_net(dev) != &init_net)
3742                 return NOTIFY_DONE;
3743
3744         card = qeth_l3_get_card_from_dev(dev);
3745         QETH_CARD_TEXT(card, 3, "ipevent");
3746         if (!card)
3747                 return NOTIFY_DONE;
3748
3749         addr = qeth_l3_get_addr_buffer(QETH_PROT_IPV4);
3750         if (addr != NULL) {
3751                 addr->u.a4.addr = ifa->ifa_address;
3752                 addr->u.a4.mask = ifa->ifa_mask;
3753                 addr->type = QETH_IP_TYPE_NORMAL;
3754         } else
3755                 goto out;
3756
3757         switch (event) {
3758         case NETDEV_UP:
3759                 if (!qeth_l3_add_ip(card, addr))
3760                         kfree(addr);
3761                 break;
3762         case NETDEV_DOWN:
3763                 if (!qeth_l3_delete_ip(card, addr))
3764                         kfree(addr);
3765                 break;
3766         default:
3767                 break;
3768         }
3769         qeth_l3_set_ip_addr_list(card);
3770 out:
3771         return NOTIFY_DONE;
3772 }
3773
3774 static struct notifier_block qeth_l3_ip_notifier = {
3775         qeth_l3_ip_event,
3776         NULL,
3777 };
3778
3779 #ifdef CONFIG_QETH_IPV6
3780 /**
3781  * IPv6 event handler
3782  */
3783 static int qeth_l3_ip6_event(struct notifier_block *this,
3784                              unsigned long event, void *ptr)
3785 {
3786         struct inet6_ifaddr *ifa = (struct inet6_ifaddr *)ptr;
3787         struct net_device *dev = (struct net_device *)ifa->idev->dev;
3788         struct qeth_ipaddr *addr;
3789         struct qeth_card *card;
3790
3791
3792         card = qeth_l3_get_card_from_dev(dev);
3793         if (!card)
3794                 return NOTIFY_DONE;
3795         QETH_CARD_TEXT(card, 3, "ip6event");
3796         if (!qeth_is_supported(card, IPA_IPV6))
3797                 return NOTIFY_DONE;
3798
3799         addr = qeth_l3_get_addr_buffer(QETH_PROT_IPV6);
3800         if (addr != NULL) {
3801                 memcpy(&addr->u.a6.addr, &ifa->addr, sizeof(struct in6_addr));
3802                 addr->u.a6.pfxlen = ifa->prefix_len;
3803                 addr->type = QETH_IP_TYPE_NORMAL;
3804         } else
3805                 goto out;
3806
3807         switch (event) {
3808         case NETDEV_UP:
3809                 if (!qeth_l3_add_ip(card, addr))
3810                         kfree(addr);
3811                 break;
3812         case NETDEV_DOWN:
3813                 if (!qeth_l3_delete_ip(card, addr))
3814                         kfree(addr);
3815                 break;
3816         default:
3817                 break;
3818         }
3819         qeth_l3_set_ip_addr_list(card);
3820 out:
3821         return NOTIFY_DONE;
3822 }
3823
3824 static struct notifier_block qeth_l3_ip6_notifier = {
3825         qeth_l3_ip6_event,
3826         NULL,
3827 };
3828 #endif
3829
3830 static int qeth_l3_register_notifiers(void)
3831 {
3832         int rc;
3833
3834         QETH_DBF_TEXT(SETUP, 5, "regnotif");
3835         rc = register_inetaddr_notifier(&qeth_l3_ip_notifier);
3836         if (rc)
3837                 return rc;
3838 #ifdef CONFIG_QETH_IPV6
3839         rc = register_inet6addr_notifier(&qeth_l3_ip6_notifier);
3840         if (rc) {
3841                 unregister_inetaddr_notifier(&qeth_l3_ip_notifier);
3842                 return rc;
3843         }
3844 #else
3845         pr_warning("There is no IPv6 support for the layer 3 discipline\n");
3846 #endif
3847         return 0;
3848 }
3849
3850 static void qeth_l3_unregister_notifiers(void)
3851 {
3852
3853         QETH_DBF_TEXT(SETUP, 5, "unregnot");
3854         BUG_ON(unregister_inetaddr_notifier(&qeth_l3_ip_notifier));
3855 #ifdef CONFIG_QETH_IPV6
3856         BUG_ON(unregister_inet6addr_notifier(&qeth_l3_ip6_notifier));
3857 #endif /* QETH_IPV6 */
3858 }
3859
3860 static int __init qeth_l3_init(void)
3861 {
3862         int rc = 0;
3863
3864         pr_info("register layer 3 discipline\n");
3865         rc = qeth_l3_register_notifiers();
3866         return rc;
3867 }
3868
3869 static void __exit qeth_l3_exit(void)
3870 {
3871         qeth_l3_unregister_notifiers();
3872         pr_info("unregister layer 3 discipline\n");
3873 }
3874
3875 module_init(qeth_l3_init);
3876 module_exit(qeth_l3_exit);
3877 MODULE_AUTHOR("Frank Blaschka <frank.blaschka@de.ibm.com>");
3878 MODULE_DESCRIPTION("qeth layer 3 discipline");
3879 MODULE_LICENSE("GPL");