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 recover)
 514 {
 515         struct qeth_ipaddr *addr, *tmp;
 516         unsigned long flags;
 517
 518         QETH_CARD_TEXT(card, 4, "clearip");
 519         if (recover && card->options.sniffer)
 520                 return;
 521         spin_lock_irqsave(&card->ip_lock, flags);
 522         /* clear todo list */
 523         list_for_each_entry_safe(addr, tmp, card->ip_tbd_list, entry) {
 524                 list_del(&addr->entry);
 525                 kfree(addr);
 526         }
 527
 528         while (!list_empty(&card->ip_list)) {
 529                 addr = list_entry(card->ip_list.next,
 530                                   struct qeth_ipaddr, entry);
 531                 list_del_init(&addr->entry);
 532                 if (!recover || addr->is_multicast) {
 533                         kfree(addr);
 534                         continue;
 535                 }
 536                 list_add_tail(&addr->entry, card->ip_tbd_list);
 537         }
 538         spin_unlock_irqrestore(&card->ip_lock, flags);
 539 }
 540
 541 static int qeth_l3_address_exists_in_list(struct list_head *list,
 542                 struct qeth_ipaddr *addr, int same_type)
 543 {
 544         struct qeth_ipaddr *tmp;
 545
 546         list_for_each_entry(tmp, list, entry) {
 547                 if ((tmp->proto == QETH_PROT_IPV4) &&
 548                     (addr->proto == QETH_PROT_IPV4) &&
 549                     ((same_type && (tmp->type == addr->type)) ||
 550                     (!same_type && (tmp->type != addr->type))) &&
 551                     (tmp->u.a4.addr == addr->u.a4.addr))
 552                         return 1;
 553
 554                 if ((tmp->proto == QETH_PROT_IPV6) &&
 555                     (addr->proto == QETH_PROT_IPV6) &&
 556                     ((same_type && (tmp->type == addr->type)) ||
 557                     (!same_type && (tmp->type != addr->type))) &&
 558                     (memcmp(&tmp->u.a6.addr, &addr->u.a6.addr,
 559                             sizeof(struct in6_addr)) == 0))
 560                         return 1;
 561
 562         }
 563         return 0;
 564 }
 565
 566 static int qeth_l3_send_setdelmc(struct qeth_card *card,
 567                         struct qeth_ipaddr *addr, int ipacmd)
 568 {
 569         int rc;
 570         struct qeth_cmd_buffer *iob;
 571         struct qeth_ipa_cmd *cmd;
 572
 573         QETH_CARD_TEXT(card, 4, "setdelmc");
 574
 575         iob = qeth_get_ipacmd_buffer(card, ipacmd, addr->proto);
 576         cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
 577         memcpy(&cmd->data.setdelipm.mac, addr->mac, OSA_ADDR_LEN);
 578         if (addr->proto == QETH_PROT_IPV6)
 579                 memcpy(cmd->data.setdelipm.ip6, &addr->u.a6.addr,
 580                        sizeof(struct in6_addr));
 581         else
 582                 memcpy(&cmd->data.setdelipm.ip4, &addr->u.a4.addr, 4);
 583
 584         rc = qeth_send_ipa_cmd(card, iob, NULL, NULL);
 585
 586         return rc;
 587 }
 588
 589 static void qeth_l3_fill_netmask(u8 *netmask, unsigned int len)
 590 {
 591         int i, j;
 592         for (i = 0; i < 16; i++) {
 593                 j = (len) - (i * 8);
 594                 if (j >= 8)
 595                         netmask[i] = 0xff;
 596                 else if (j > 0)
 597                         netmask[i] = (u8)(0xFF00 >> j);
 598                 else
 599                         netmask[i] = 0;
 600         }
 601 }
 602
 603 static int qeth_l3_send_setdelip(struct qeth_card *card,
 604                 struct qeth_ipaddr *addr, int ipacmd, unsigned int flags)
 605 {
 606         int rc;
 607         struct qeth_cmd_buffer *iob;
 608         struct qeth_ipa_cmd *cmd;
 609         __u8 netmask[16];
 610
 611         QETH_CARD_TEXT(card, 4, "setdelip");
 612         QETH_CARD_TEXT_(card, 4, "flags%02X", flags);
 613
 614         iob = qeth_get_ipacmd_buffer(card, ipacmd, addr->proto);
 615         cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
 616         if (addr->proto == QETH_PROT_IPV6) {
 617                 memcpy(cmd->data.setdelip6.ip_addr, &addr->u.a6.addr,
 618                        sizeof(struct in6_addr));
 619                 qeth_l3_fill_netmask(netmask, addr->u.a6.pfxlen);
 620                 memcpy(cmd->data.setdelip6.mask, netmask,
 621                        sizeof(struct in6_addr));
 622                 cmd->data.setdelip6.flags = flags;
 623         } else {
 624                 memcpy(cmd->data.setdelip4.ip_addr, &addr->u.a4.addr, 4);
 625                 memcpy(cmd->data.setdelip4.mask, &addr->u.a4.mask, 4);
 626                 cmd->data.setdelip4.flags = flags;
 627         }
 628
 629         rc = qeth_send_ipa_cmd(card, iob, NULL, NULL);
 630
 631         return rc;
 632 }
 633
 634 static int qeth_l3_send_setrouting(struct qeth_card *card,
 635         enum qeth_routing_types type, enum qeth_prot_versions prot)
 636 {
 637         int rc;
 638         struct qeth_ipa_cmd *cmd;
 639         struct qeth_cmd_buffer *iob;
 640
 641         QETH_CARD_TEXT(card, 4, "setroutg");
 642         iob = qeth_get_ipacmd_buffer(card, IPA_CMD_SETRTG, prot);
 643         cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
 644         cmd->data.setrtg.type = (type);
 645         rc = qeth_send_ipa_cmd(card, iob, NULL, NULL);
 646
 647         return rc;
 648 }
 649
 650 static void qeth_l3_correct_routing_type(struct qeth_card *card,
 651                 enum qeth_routing_types *type, enum qeth_prot_versions prot)
 652 {
 653         if (card->info.type == QETH_CARD_TYPE_IQD) {
 654                 switch (*type) {
 655                 case NO_ROUTER:
 656                 case PRIMARY_CONNECTOR:
 657                 case SECONDARY_CONNECTOR:
 658                 case MULTICAST_ROUTER:
 659                         return;
 660                 default:
 661                         goto out_inval;
 662                 }
 663         } else {
 664                 switch (*type) {
 665                 case NO_ROUTER:
 666                 case PRIMARY_ROUTER:
 667                 case SECONDARY_ROUTER:
 668                         return;
 669                 case MULTICAST_ROUTER:
 670                         if (qeth_is_ipafunc_supported(card, prot,
 671                                                       IPA_OSA_MC_ROUTER))
 672                                 return;
 673                 default:
 674                         goto out_inval;
 675                 }
 676         }
 677 out_inval:
 678         *type = NO_ROUTER;
 679 }
 680
 681 int qeth_l3_setrouting_v4(struct qeth_card *card)
 682 {
 683         int rc;
 684
 685         QETH_CARD_TEXT(card, 3, "setrtg4");
 686
 687         qeth_l3_correct_routing_type(card, &card->options.route4.type,
 688                                   QETH_PROT_IPV4);
 689
 690         rc = qeth_l3_send_setrouting(card, card->options.route4.type,
 691                                   QETH_PROT_IPV4);
 692         if (rc) {
 693                 card->options.route4.type = NO_ROUTER;
 694                 QETH_DBF_MESSAGE(2, "Error (0x%04x) while setting routing type"
 695                         " on %s. Type set to 'no router'.\n", rc,
 696                         QETH_CARD_IFNAME(card));
 697         }
 698         return rc;
 699 }
 700
 701 int qeth_l3_setrouting_v6(struct qeth_card *card)
 702 {
 703         int rc = 0;
 704
 705         QETH_CARD_TEXT(card, 3, "setrtg6");
 706 #ifdef CONFIG_QETH_IPV6
 707
 708         if (!qeth_is_supported(card, IPA_IPV6))
 709                 return 0;
 710         qeth_l3_correct_routing_type(card, &card->options.route6.type,
 711                                   QETH_PROT_IPV6);
 712
 713         rc = qeth_l3_send_setrouting(card, card->options.route6.type,
 714                                   QETH_PROT_IPV6);
 715         if (rc) {
 716                 card->options.route6.type = NO_ROUTER;
 717                 QETH_DBF_MESSAGE(2, "Error (0x%04x) while setting routing type"
 718                         " on %s. Type set to 'no router'.\n", rc,
 719                         QETH_CARD_IFNAME(card));
 720         }
 721 #endif
 722         return rc;
 723 }
 724
 725 /*
 726  * IP address takeover related functions
 727  */
 728 static void qeth_l3_clear_ipato_list(struct qeth_card *card)
 729 {
 730
 731         struct qeth_ipato_entry *ipatoe, *tmp;
 732         unsigned long flags;
 733
 734         spin_lock_irqsave(&card->ip_lock, flags);
 735         list_for_each_entry_safe(ipatoe, tmp, &card->ipato.entries, entry) {
 736                 list_del(&ipatoe->entry);
 737                 kfree(ipatoe);
 738         }
 739         spin_unlock_irqrestore(&card->ip_lock, flags);
 740 }
 741
 742 int qeth_l3_add_ipato_entry(struct qeth_card *card,
 743                                 struct qeth_ipato_entry *new)
 744 {
 745         struct qeth_ipato_entry *ipatoe;
 746         unsigned long flags;
 747         int rc = 0;
 748
 749         QETH_CARD_TEXT(card, 2, "addipato");
 750         spin_lock_irqsave(&card->ip_lock, flags);
 751         list_for_each_entry(ipatoe, &card->ipato.entries, entry) {
 752                 if (ipatoe->proto != new->proto)
 753                         continue;
 754                 if (!memcmp(ipatoe->addr, new->addr,
 755                             (ipatoe->proto == QETH_PROT_IPV4)? 4:16) &&
 756                     (ipatoe->mask_bits == new->mask_bits)) {
 757                         rc = -EEXIST;
 758                         break;
 759                 }
 760         }
 761         if (!rc)
 762                 list_add_tail(&new->entry, &card->ipato.entries);
 763
 764         spin_unlock_irqrestore(&card->ip_lock, flags);
 765         return rc;
 766 }
 767
 768 void qeth_l3_del_ipato_entry(struct qeth_card *card,
 769                 enum qeth_prot_versions proto, u8 *addr, int mask_bits)
 770 {
 771         struct qeth_ipato_entry *ipatoe, *tmp;
 772         unsigned long flags;
 773
 774         QETH_CARD_TEXT(card, 2, "delipato");
 775         spin_lock_irqsave(&card->ip_lock, flags);
 776         list_for_each_entry_safe(ipatoe, tmp, &card->ipato.entries, entry) {
 777                 if (ipatoe->proto != proto)
 778                         continue;
 779                 if (!memcmp(ipatoe->addr, addr,
 780                             (proto == QETH_PROT_IPV4)? 4:16) &&
 781                     (ipatoe->mask_bits == mask_bits)) {
 782                         list_del(&ipatoe->entry);
 783                         kfree(ipatoe);
 784                 }
 785         }
 786         spin_unlock_irqrestore(&card->ip_lock, flags);
 787 }
 788
 789 /*
 790  * VIPA related functions
 791  */
 792 int qeth_l3_add_vipa(struct qeth_card *card, enum qeth_prot_versions proto,
 793               const u8 *addr)
 794 {
 795         struct qeth_ipaddr *ipaddr;
 796         unsigned long flags;
 797         int rc = 0;
 798
 799         ipaddr = qeth_l3_get_addr_buffer(proto);
 800         if (ipaddr) {
 801                 if (proto == QETH_PROT_IPV4) {
 802                         QETH_CARD_TEXT(card, 2, "addvipa4");
 803                         memcpy(&ipaddr->u.a4.addr, addr, 4);
 804                         ipaddr->u.a4.mask = 0;
 805                 } else if (proto == QETH_PROT_IPV6) {
 806                         QETH_CARD_TEXT(card, 2, "addvipa6");
 807                         memcpy(&ipaddr->u.a6.addr, addr, 16);
 808                         ipaddr->u.a6.pfxlen = 0;
 809                 }
 810                 ipaddr->type = QETH_IP_TYPE_VIPA;
 811                 ipaddr->set_flags = QETH_IPA_SETIP_VIPA_FLAG;
 812                 ipaddr->del_flags = QETH_IPA_DELIP_VIPA_FLAG;
 813         } else
 814                 return -ENOMEM;
 815         spin_lock_irqsave(&card->ip_lock, flags);
 816         if (qeth_l3_address_exists_in_list(&card->ip_list, ipaddr, 0) ||
 817             qeth_l3_address_exists_in_list(card->ip_tbd_list, ipaddr, 0))
 818                 rc = -EEXIST;
 819         spin_unlock_irqrestore(&card->ip_lock, flags);
 820         if (rc) {
 821                 return rc;
 822         }
 823         if (!qeth_l3_add_ip(card, ipaddr))
 824                 kfree(ipaddr);
 825         qeth_l3_set_ip_addr_list(card);
 826         return rc;
 827 }
 828
 829 void qeth_l3_del_vipa(struct qeth_card *card, enum qeth_prot_versions proto,
 830               const u8 *addr)
 831 {
 832         struct qeth_ipaddr *ipaddr;
 833
 834         ipaddr = qeth_l3_get_addr_buffer(proto);
 835         if (ipaddr) {
 836                 if (proto == QETH_PROT_IPV4) {
 837                         QETH_CARD_TEXT(card, 2, "delvipa4");
 838                         memcpy(&ipaddr->u.a4.addr, addr, 4);
 839                         ipaddr->u.a4.mask = 0;
 840                 } else if (proto == QETH_PROT_IPV6) {
 841                         QETH_CARD_TEXT(card, 2, "delvipa6");
 842                         memcpy(&ipaddr->u.a6.addr, addr, 16);
 843                         ipaddr->u.a6.pfxlen = 0;
 844                 }
 845                 ipaddr->type = QETH_IP_TYPE_VIPA;
 846         } else
 847                 return;
 848         if (!qeth_l3_delete_ip(card, ipaddr))
 849                 kfree(ipaddr);
 850         qeth_l3_set_ip_addr_list(card);
 851 }
 852
 853 /*
 854  * proxy ARP related functions
 855  */
 856 int qeth_l3_add_rxip(struct qeth_card *card, enum qeth_prot_versions proto,
 857               const u8 *addr)
 858 {
 859         struct qeth_ipaddr *ipaddr;
 860         unsigned long flags;
 861         int rc = 0;
 862
 863         ipaddr = qeth_l3_get_addr_buffer(proto);
 864         if (ipaddr) {
 865                 if (proto == QETH_PROT_IPV4) {
 866                         QETH_CARD_TEXT(card, 2, "addrxip4");
 867                         memcpy(&ipaddr->u.a4.addr, addr, 4);
 868                         ipaddr->u.a4.mask = 0;
 869                 } else if (proto == QETH_PROT_IPV6) {
 870                         QETH_CARD_TEXT(card, 2, "addrxip6");
 871                         memcpy(&ipaddr->u.a6.addr, addr, 16);
 872                         ipaddr->u.a6.pfxlen = 0;
 873                 }
 874                 ipaddr->type = QETH_IP_TYPE_RXIP;
 875                 ipaddr->set_flags = QETH_IPA_SETIP_TAKEOVER_FLAG;
 876                 ipaddr->del_flags = 0;
 877         } else
 878                 return -ENOMEM;
 879         spin_lock_irqsave(&card->ip_lock, flags);
 880         if (qeth_l3_address_exists_in_list(&card->ip_list, ipaddr, 0) ||
 881             qeth_l3_address_exists_in_list(card->ip_tbd_list, ipaddr, 0))
 882                 rc = -EEXIST;
 883         spin_unlock_irqrestore(&card->ip_lock, flags);
 884         if (rc) {
 885                 return rc;
 886         }
 887         if (!qeth_l3_add_ip(card, ipaddr))
 888                 kfree(ipaddr);
 889         qeth_l3_set_ip_addr_list(card);
 890         return 0;
 891 }
 892
 893 void qeth_l3_del_rxip(struct qeth_card *card, enum qeth_prot_versions proto,
 894                         const u8 *addr)
 895 {
 896         struct qeth_ipaddr *ipaddr;
 897
 898         ipaddr = qeth_l3_get_addr_buffer(proto);
 899         if (ipaddr) {
 900                 if (proto == QETH_PROT_IPV4) {
 901                         QETH_CARD_TEXT(card, 2, "addrxip4");
 902                         memcpy(&ipaddr->u.a4.addr, addr, 4);
 903                         ipaddr->u.a4.mask = 0;
 904                 } else if (proto == QETH_PROT_IPV6) {
 905                         QETH_CARD_TEXT(card, 2, "addrxip6");
 906                         memcpy(&ipaddr->u.a6.addr, addr, 16);
 907                         ipaddr->u.a6.pfxlen = 0;
 908                 }
 909                 ipaddr->type = QETH_IP_TYPE_RXIP;
 910         } else
 911                 return;
 912         if (!qeth_l3_delete_ip(card, ipaddr))
 913                 kfree(ipaddr);
 914         qeth_l3_set_ip_addr_list(card);
 915 }
 916
 917 static int qeth_l3_register_addr_entry(struct qeth_card *card,
 918                                 struct qeth_ipaddr *addr)
 919 {
 920         char buf[50];
 921         int rc = 0;
 922         int cnt = 3;
 923
 924         if (addr->proto == QETH_PROT_IPV4) {
 925                 QETH_CARD_TEXT(card, 2, "setaddr4");
 926                 QETH_CARD_HEX(card, 3, &addr->u.a4.addr, sizeof(int));
 927         } else if (addr->proto == QETH_PROT_IPV6) {
 928                 QETH_CARD_TEXT(card, 2, "setaddr6");
 929                 QETH_CARD_HEX(card, 3, &addr->u.a6.addr, 8);
 930                 QETH_CARD_HEX(card, 3, ((char *)&addr->u.a6.addr) + 8, 8);
 931         } else {
 932                 QETH_CARD_TEXT(card, 2, "setaddr?");
 933                 QETH_CARD_HEX(card, 3, addr, sizeof(struct qeth_ipaddr));
 934         }
 935         do {
 936                 if (addr->is_multicast)
 937                         rc =  qeth_l3_send_setdelmc(card, addr, IPA_CMD_SETIPM);
 938                 else
 939                         rc = qeth_l3_send_setdelip(card, addr, IPA_CMD_SETIP,
 940                                         addr->set_flags);
 941                 if (rc)
 942                         QETH_CARD_TEXT(card, 2, "failed");
 943         } while ((--cnt > 0) && rc);
 944         if (rc) {
 945                 QETH_CARD_TEXT(card, 2, "FAILED");
 946                 qeth_l3_ipaddr_to_string(addr->proto, (u8 *)&addr->u, buf);
 947                 dev_warn(&card->gdev->dev,
 948                         "Registering IP address %s failed\n", buf);
 949         }
 950         return rc;
 951 }
 952
 953 static int qeth_l3_deregister_addr_entry(struct qeth_card *card,
 954                                                 struct qeth_ipaddr *addr)
 955 {
 956         int rc = 0;
 957
 958         if (addr->proto == QETH_PROT_IPV4) {
 959                 QETH_CARD_TEXT(card, 2, "deladdr4");
 960                 QETH_CARD_HEX(card, 3, &addr->u.a4.addr, sizeof(int));
 961         } else if (addr->proto == QETH_PROT_IPV6) {
 962                 QETH_CARD_TEXT(card, 2, "deladdr6");
 963                 QETH_CARD_HEX(card, 3, &addr->u.a6.addr, 8);
 964                 QETH_CARD_HEX(card, 3, ((char *)&addr->u.a6.addr) + 8, 8);
 965         } else {
 966                 QETH_CARD_TEXT(card, 2, "deladdr?");
 967                 QETH_CARD_HEX(card, 3, addr, sizeof(struct qeth_ipaddr));
 968         }
 969         if (addr->is_multicast)
 970                 rc = qeth_l3_send_setdelmc(card, addr, IPA_CMD_DELIPM);
 971         else
 972                 rc = qeth_l3_send_setdelip(card, addr, IPA_CMD_DELIP,
 973                                         addr->del_flags);
 974         if (rc)
 975                 QETH_CARD_TEXT(card, 2, "failed");
 976
 977         return rc;
 978 }
 979
 980 static inline u8 qeth_l3_get_qeth_hdr_flags4(int cast_type)
 981 {
 982         if (cast_type == RTN_MULTICAST)
 983                 return QETH_CAST_MULTICAST;
 984         if (cast_type == RTN_BROADCAST)
 985                 return QETH_CAST_BROADCAST;
 986         return QETH_CAST_UNICAST;
 987 }
 988
 989 static inline u8 qeth_l3_get_qeth_hdr_flags6(int cast_type)
 990 {
 991         u8 ct = QETH_HDR_PASSTHRU | QETH_HDR_IPV6;
 992         if (cast_type == RTN_MULTICAST)
 993                 return ct | QETH_CAST_MULTICAST;
 994         if (cast_type == RTN_ANYCAST)
 995                 return ct | QETH_CAST_ANYCAST;
 996         if (cast_type == RTN_BROADCAST)
 997                 return ct | QETH_CAST_BROADCAST;
 998         return ct | QETH_CAST_UNICAST;
 999 }
1000
1001 static int qeth_l3_send_setadp_mode(struct qeth_card *card, __u32 command,
1002                                         __u32 mode)
1003 {
1004         int rc;
1005         struct qeth_cmd_buffer *iob;
1006         struct qeth_ipa_cmd *cmd;
1007
1008         QETH_CARD_TEXT(card, 4, "adpmode");
1009
1010         iob = qeth_get_adapter_cmd(card, command,
1011                                    sizeof(struct qeth_ipacmd_setadpparms));
1012         cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
1013         cmd->data.setadapterparms.data.mode = mode;
1014         rc = qeth_send_ipa_cmd(card, iob, qeth_default_setadapterparms_cb,
1015                                NULL);
1016         return rc;
1017 }
1018
1019 static int qeth_l3_setadapter_hstr(struct qeth_card *card)
1020 {
1021         int rc;
1022
1023         QETH_CARD_TEXT(card, 4, "adphstr");
1024
1025         if (qeth_adp_supported(card, IPA_SETADP_SET_BROADCAST_MODE)) {
1026                 rc = qeth_l3_send_setadp_mode(card,
1027                                         IPA_SETADP_SET_BROADCAST_MODE,
1028                                         card->options.broadcast_mode);
1029                 if (rc)
1030                         QETH_DBF_MESSAGE(2, "couldn't set broadcast mode on "
1031                                    "device %s: x%x\n",
1032                                    CARD_BUS_ID(card), rc);
1033                 rc = qeth_l3_send_setadp_mode(card,
1034                                         IPA_SETADP_ALTER_MAC_ADDRESS,
1035                                         card->options.macaddr_mode);
1036                 if (rc)
1037                         QETH_DBF_MESSAGE(2, "couldn't set macaddr mode on "
1038                                    "device %s: x%x\n", CARD_BUS_ID(card), rc);
1039                 return rc;
1040         }
1041         if (card->options.broadcast_mode == QETH_TR_BROADCAST_LOCAL)
1042                 QETH_DBF_MESSAGE(2, "set adapter parameters not available "
1043                            "to set broadcast mode, using ALLRINGS "
1044                            "on device %s:\n", CARD_BUS_ID(card));
1045         if (card->options.macaddr_mode == QETH_TR_MACADDR_CANONICAL)
1046                 QETH_DBF_MESSAGE(2, "set adapter parameters not available "
1047                            "to set macaddr mode, using NONCANONICAL "
1048                            "on device %s:\n", CARD_BUS_ID(card));
1049         return 0;
1050 }
1051
1052 static int qeth_l3_setadapter_parms(struct qeth_card *card)
1053 {
1054         int rc;
1055
1056         QETH_DBF_TEXT(SETUP, 2, "setadprm");
1057
1058         if (!qeth_is_supported(card, IPA_SETADAPTERPARMS)) {
1059                 dev_info(&card->gdev->dev,
1060                         "set adapter parameters not supported.\n");
1061                 QETH_DBF_TEXT(SETUP, 2, " notsupp");
1062                 return 0;
1063         }
1064         rc = qeth_query_setadapterparms(card);
1065         if (rc) {
1066                 QETH_DBF_MESSAGE(2, "%s couldn't set adapter parameters: "
1067                         "0x%x\n", dev_name(&card->gdev->dev), rc);
1068                 return rc;
1069         }
1070         if (qeth_adp_supported(card, IPA_SETADP_ALTER_MAC_ADDRESS)) {
1071                 rc = qeth_setadpparms_change_macaddr(card);
1072                 if (rc)
1073                         dev_warn(&card->gdev->dev, "Reading the adapter MAC"
1074                                 " address failed\n");
1075         }
1076
1077         if ((card->info.link_type == QETH_LINK_TYPE_HSTR) ||
1078             (card->info.link_type == QETH_LINK_TYPE_LANE_TR))
1079                 rc = qeth_l3_setadapter_hstr(card);
1080
1081         return rc;
1082 }
1083
1084 static int qeth_l3_default_setassparms_cb(struct qeth_card *card,
1085                         struct qeth_reply *reply, unsigned long data)
1086 {
1087         struct qeth_ipa_cmd *cmd;
1088
1089         QETH_CARD_TEXT(card, 4, "defadpcb");
1090
1091         cmd = (struct qeth_ipa_cmd *) data;
1092         if (cmd->hdr.return_code == 0) {
1093                 cmd->hdr.return_code = cmd->data.setassparms.hdr.return_code;
1094                 if (cmd->hdr.prot_version == QETH_PROT_IPV4)
1095                         card->options.ipa4.enabled_funcs = cmd->hdr.ipa_enabled;
1096                 if (cmd->hdr.prot_version == QETH_PROT_IPV6)
1097                         card->options.ipa6.enabled_funcs = cmd->hdr.ipa_enabled;
1098         }
1099         if (cmd->data.setassparms.hdr.assist_no == IPA_INBOUND_CHECKSUM &&
1100             cmd->data.setassparms.hdr.command_code == IPA_CMD_ASS_START) {
1101                 card->info.csum_mask = cmd->data.setassparms.data.flags_32bit;
1102                 QETH_CARD_TEXT_(card, 3, "csum:%d", card->info.csum_mask);
1103         }
1104         if (cmd->data.setassparms.hdr.assist_no == IPA_OUTBOUND_CHECKSUM &&
1105             cmd->data.setassparms.hdr.command_code == IPA_CMD_ASS_START) {
1106                 card->info.tx_csum_mask =
1107                         cmd->data.setassparms.data.flags_32bit;
1108                 QETH_CARD_TEXT_(card, 3, "tcsu:%d", card->info.tx_csum_mask);
1109         }
1110
1111         return 0;
1112 }
1113
1114 static struct qeth_cmd_buffer *qeth_l3_get_setassparms_cmd(
1115         struct qeth_card *card, enum qeth_ipa_funcs ipa_func, __u16 cmd_code,
1116         __u16 len, enum qeth_prot_versions prot)
1117 {
1118         struct qeth_cmd_buffer *iob;
1119         struct qeth_ipa_cmd *cmd;
1120
1121         QETH_CARD_TEXT(card, 4, "getasscm");
1122         iob = qeth_get_ipacmd_buffer(card, IPA_CMD_SETASSPARMS, prot);
1123
1124         cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
1125         cmd->data.setassparms.hdr.assist_no = ipa_func;
1126         cmd->data.setassparms.hdr.length = 8 + len;
1127         cmd->data.setassparms.hdr.command_code = cmd_code;
1128         cmd->data.setassparms.hdr.return_code = 0;
1129         cmd->data.setassparms.hdr.seq_no = 0;
1130
1131         return iob;
1132 }
1133
1134 static int qeth_l3_send_setassparms(struct qeth_card *card,
1135         struct qeth_cmd_buffer *iob, __u16 len, long data,
1136         int (*reply_cb)(struct qeth_card *, struct qeth_reply *,
1137                 unsigned long),
1138         void *reply_param)
1139 {
1140         int rc;
1141         struct qeth_ipa_cmd *cmd;
1142
1143         QETH_CARD_TEXT(card, 4, "sendassp");
1144
1145         cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
1146         if (len <= sizeof(__u32))
1147                 cmd->data.setassparms.data.flags_32bit = (__u32) data;
1148         else   /* (len > sizeof(__u32)) */
1149                 memcpy(&cmd->data.setassparms.data, (void *) data, len);
1150
1151         rc = qeth_send_ipa_cmd(card, iob, reply_cb, reply_param);
1152         return rc;
1153 }
1154
1155 #ifdef CONFIG_QETH_IPV6
1156 static int qeth_l3_send_simple_setassparms_ipv6(struct qeth_card *card,
1157                 enum qeth_ipa_funcs ipa_func, __u16 cmd_code)
1158 {
1159         int rc;
1160         struct qeth_cmd_buffer *iob;
1161
1162         QETH_CARD_TEXT(card, 4, "simassp6");
1163         iob = qeth_l3_get_setassparms_cmd(card, ipa_func, cmd_code,
1164                                        0, QETH_PROT_IPV6);
1165         rc = qeth_l3_send_setassparms(card, iob, 0, 0,
1166                                    qeth_l3_default_setassparms_cb, NULL);
1167         return rc;
1168 }
1169 #endif
1170
1171 static int qeth_l3_send_simple_setassparms(struct qeth_card *card,
1172                 enum qeth_ipa_funcs ipa_func, __u16 cmd_code, long data)
1173 {
1174         int rc;
1175         int length = 0;
1176         struct qeth_cmd_buffer *iob;
1177
1178         QETH_CARD_TEXT(card, 4, "simassp4");
1179         if (data)
1180                 length = sizeof(__u32);
1181         iob = qeth_l3_get_setassparms_cmd(card, ipa_func, cmd_code,
1182                                        length, QETH_PROT_IPV4);
1183         rc = qeth_l3_send_setassparms(card, iob, length, data,
1184                                    qeth_l3_default_setassparms_cb, NULL);
1185         return rc;
1186 }
1187
1188 static int qeth_l3_start_ipa_arp_processing(struct qeth_card *card)
1189 {
1190         int rc;
1191
1192         QETH_CARD_TEXT(card, 3, "ipaarp");
1193
1194         if (!qeth_is_supported(card, IPA_ARP_PROCESSING)) {
1195                 dev_info(&card->gdev->dev,
1196                         "ARP processing not supported on %s!\n",
1197                         QETH_CARD_IFNAME(card));
1198                 return 0;
1199         }
1200         rc = qeth_l3_send_simple_setassparms(card, IPA_ARP_PROCESSING,
1201                                         IPA_CMD_ASS_START, 0);
1202         if (rc) {
1203                 dev_warn(&card->gdev->dev,
1204                         "Starting ARP processing support for %s failed\n",
1205                         QETH_CARD_IFNAME(card));
1206         }
1207         return rc;
1208 }
1209
1210 static int qeth_l3_start_ipa_ip_fragmentation(struct qeth_card *card)
1211 {
1212         int rc;
1213
1214         QETH_CARD_TEXT(card, 3, "ipaipfrg");
1215
1216         if (!qeth_is_supported(card, IPA_IP_FRAGMENTATION)) {
1217                 dev_info(&card->gdev->dev,
1218                         "Hardware IP fragmentation not supported on %s\n",
1219                         QETH_CARD_IFNAME(card));
1220                 return  -EOPNOTSUPP;
1221         }
1222
1223         rc = qeth_l3_send_simple_setassparms(card, IPA_IP_FRAGMENTATION,
1224                                           IPA_CMD_ASS_START, 0);
1225         if (rc) {
1226                 dev_warn(&card->gdev->dev,
1227                         "Starting IP fragmentation support for %s failed\n",
1228                         QETH_CARD_IFNAME(card));
1229         } else
1230                 dev_info(&card->gdev->dev,
1231                         "Hardware IP fragmentation enabled \n");
1232         return rc;
1233 }
1234
1235 static int qeth_l3_start_ipa_source_mac(struct qeth_card *card)
1236 {
1237         int rc;
1238
1239         QETH_CARD_TEXT(card, 3, "stsrcmac");
1240
1241         if (!qeth_is_supported(card, IPA_SOURCE_MAC)) {
1242                 dev_info(&card->gdev->dev,
1243                         "Inbound source MAC-address not supported on %s\n",
1244                         QETH_CARD_IFNAME(card));
1245                 return -EOPNOTSUPP;
1246         }
1247
1248         rc = qeth_l3_send_simple_setassparms(card, IPA_SOURCE_MAC,
1249                                           IPA_CMD_ASS_START, 0);
1250         if (rc)
1251                 dev_warn(&card->gdev->dev,
1252                         "Starting source MAC-address support for %s failed\n",
1253                         QETH_CARD_IFNAME(card));
1254         return rc;
1255 }
1256
1257 static int qeth_l3_start_ipa_vlan(struct qeth_card *card)
1258 {
1259         int rc = 0;
1260
1261         QETH_CARD_TEXT(card, 3, "strtvlan");
1262
1263         if (!qeth_is_supported(card, IPA_FULL_VLAN)) {
1264                 dev_info(&card->gdev->dev,
1265                         "VLAN not supported on %s\n", QETH_CARD_IFNAME(card));
1266                 return -EOPNOTSUPP;
1267         }
1268
1269         rc = qeth_l3_send_simple_setassparms(card, IPA_VLAN_PRIO,
1270                                           IPA_CMD_ASS_START, 0);
1271         if (rc) {
1272                 dev_warn(&card->gdev->dev,
1273                         "Starting VLAN support for %s failed\n",
1274                         QETH_CARD_IFNAME(card));
1275         } else {
1276                 dev_info(&card->gdev->dev, "VLAN enabled\n");
1277         }
1278         return rc;
1279 }
1280
1281 static int qeth_l3_start_ipa_multicast(struct qeth_card *card)
1282 {
1283         int rc;
1284
1285         QETH_CARD_TEXT(card, 3, "stmcast");
1286
1287         if (!qeth_is_supported(card, IPA_MULTICASTING)) {
1288                 dev_info(&card->gdev->dev,
1289                         "Multicast not supported on %s\n",
1290                         QETH_CARD_IFNAME(card));
1291                 return -EOPNOTSUPP;
1292         }
1293
1294         rc = qeth_l3_send_simple_setassparms(card, IPA_MULTICASTING,
1295                                           IPA_CMD_ASS_START, 0);
1296         if (rc) {
1297                 dev_warn(&card->gdev->dev,
1298                         "Starting multicast support for %s failed\n",
1299                         QETH_CARD_IFNAME(card));
1300         } else {
1301                 dev_info(&card->gdev->dev, "Multicast enabled\n");
1302                 card->dev->flags |= IFF_MULTICAST;
1303         }
1304         return rc;
1305 }
1306
1307 static int qeth_l3_query_ipassists_cb(struct qeth_card *card,
1308                 struct qeth_reply *reply, unsigned long data)
1309 {
1310         struct qeth_ipa_cmd *cmd;
1311
1312         QETH_DBF_TEXT(SETUP, 2, "qipasscb");
1313
1314         cmd = (struct qeth_ipa_cmd *) data;
1315         if (cmd->hdr.prot_version == QETH_PROT_IPV4) {
1316                 card->options.ipa4.supported_funcs = cmd->hdr.ipa_supported;
1317                 card->options.ipa4.enabled_funcs = cmd->hdr.ipa_enabled;
1318         } else {
1319                 card->options.ipa6.supported_funcs = cmd->hdr.ipa_supported;
1320                 card->options.ipa6.enabled_funcs = cmd->hdr.ipa_enabled;
1321         }
1322         QETH_DBF_TEXT(SETUP, 2, "suppenbl");
1323         QETH_DBF_TEXT_(SETUP, 2, "%x", cmd->hdr.ipa_supported);
1324         QETH_DBF_TEXT_(SETUP, 2, "%x", cmd->hdr.ipa_enabled);
1325         return 0;
1326 }
1327
1328 static int qeth_l3_query_ipassists(struct qeth_card *card,
1329                                 enum qeth_prot_versions prot)
1330 {
1331         int rc;
1332         struct qeth_cmd_buffer *iob;
1333
1334         QETH_DBF_TEXT_(SETUP, 2, "qipassi%i", prot);
1335         iob = qeth_get_ipacmd_buffer(card, IPA_CMD_QIPASSIST, prot);
1336         rc = qeth_send_ipa_cmd(card, iob, qeth_l3_query_ipassists_cb, NULL);
1337         return rc;
1338 }
1339
1340 #ifdef CONFIG_QETH_IPV6
1341 static int qeth_l3_softsetup_ipv6(struct qeth_card *card)
1342 {
1343         int rc;
1344
1345         QETH_CARD_TEXT(card, 3, "softipv6");
1346
1347         if (card->info.type == QETH_CARD_TYPE_IQD)
1348                 goto out;
1349
1350         rc = qeth_l3_query_ipassists(card, QETH_PROT_IPV6);
1351         if (rc) {
1352                 dev_err(&card->gdev->dev,
1353                         "Activating IPv6 support for %s failed\n",
1354                         QETH_CARD_IFNAME(card));
1355                 return rc;
1356         }
1357         rc = qeth_l3_send_simple_setassparms(card, IPA_IPV6,
1358                                           IPA_CMD_ASS_START, 3);
1359         if (rc) {
1360                 dev_err(&card->gdev->dev,
1361                         "Activating IPv6 support for %s failed\n",
1362                         QETH_CARD_IFNAME(card));
1363                 return rc;
1364         }
1365         rc = qeth_l3_send_simple_setassparms_ipv6(card, IPA_IPV6,
1366                                                IPA_CMD_ASS_START);
1367         if (rc) {
1368                 dev_err(&card->gdev->dev,
1369                         "Activating IPv6 support for %s failed\n",
1370                          QETH_CARD_IFNAME(card));
1371                 return rc;
1372         }
1373         rc = qeth_l3_send_simple_setassparms_ipv6(card, IPA_PASSTHRU,
1374                                                IPA_CMD_ASS_START);
1375         if (rc) {
1376                 dev_warn(&card->gdev->dev,
1377                         "Enabling the passthrough mode for %s failed\n",
1378                         QETH_CARD_IFNAME(card));
1379                 return rc;
1380         }
1381 out:
1382         dev_info(&card->gdev->dev, "IPV6 enabled\n");
1383         return 0;
1384 }
1385 #endif
1386
1387 static int qeth_l3_start_ipa_ipv6(struct qeth_card *card)
1388 {
1389         int rc = 0;
1390
1391         QETH_CARD_TEXT(card, 3, "strtipv6");
1392
1393         if (!qeth_is_supported(card, IPA_IPV6)) {
1394                 dev_info(&card->gdev->dev,
1395                         "IPv6 not supported on %s\n", QETH_CARD_IFNAME(card));
1396                 return 0;
1397         }
1398 #ifdef CONFIG_QETH_IPV6
1399         rc = qeth_l3_softsetup_ipv6(card);
1400 #endif
1401         return rc ;
1402 }
1403
1404 static int qeth_l3_start_ipa_broadcast(struct qeth_card *card)
1405 {
1406         int rc;
1407
1408         QETH_CARD_TEXT(card, 3, "stbrdcst");
1409         card->info.broadcast_capable = 0;
1410         if (!qeth_is_supported(card, IPA_FILTERING)) {
1411                 dev_info(&card->gdev->dev,
1412                         "Broadcast not supported on %s\n",
1413                         QETH_CARD_IFNAME(card));
1414                 rc = -EOPNOTSUPP;
1415                 goto out;
1416         }
1417         rc = qeth_l3_send_simple_setassparms(card, IPA_FILTERING,
1418                                           IPA_CMD_ASS_START, 0);
1419         if (rc) {
1420                 dev_warn(&card->gdev->dev, "Enabling broadcast filtering for "
1421                         "%s failed\n", QETH_CARD_IFNAME(card));
1422                 goto out;
1423         }
1424
1425         rc = qeth_l3_send_simple_setassparms(card, IPA_FILTERING,
1426                                           IPA_CMD_ASS_CONFIGURE, 1);
1427         if (rc) {
1428                 dev_warn(&card->gdev->dev,
1429                         "Setting up broadcast filtering for %s failed\n",
1430                         QETH_CARD_IFNAME(card));
1431                 goto out;
1432         }
1433         card->info.broadcast_capable = QETH_BROADCAST_WITH_ECHO;
1434         dev_info(&card->gdev->dev, "Broadcast enabled\n");
1435         rc = qeth_l3_send_simple_setassparms(card, IPA_FILTERING,
1436                                           IPA_CMD_ASS_ENABLE, 1);
1437         if (rc) {
1438                 dev_warn(&card->gdev->dev, "Setting up broadcast echo "
1439                         "filtering for %s failed\n", QETH_CARD_IFNAME(card));
1440                 goto out;
1441         }
1442         card->info.broadcast_capable = QETH_BROADCAST_WITHOUT_ECHO;
1443 out:
1444         if (card->info.broadcast_capable)
1445                 card->dev->flags |= IFF_BROADCAST;
1446         else
1447                 card->dev->flags &= ~IFF_BROADCAST;
1448         return rc;
1449 }
1450
1451 static int qeth_l3_send_checksum_command(struct qeth_card *card)
1452 {
1453         int rc;
1454
1455         rc = qeth_l3_send_simple_setassparms(card, IPA_INBOUND_CHECKSUM,
1456                                           IPA_CMD_ASS_START, 0);
1457         if (rc) {
1458                 dev_warn(&card->gdev->dev, "Starting HW checksumming for %s "
1459                         "failed, using SW checksumming\n",
1460                         QETH_CARD_IFNAME(card));
1461                 return rc;
1462         }
1463         rc = qeth_l3_send_simple_setassparms(card, IPA_INBOUND_CHECKSUM,
1464                                           IPA_CMD_ASS_ENABLE,
1465                                           card->info.csum_mask);
1466         if (rc) {
1467                 dev_warn(&card->gdev->dev, "Enabling HW checksumming for %s "
1468                         "failed, using SW checksumming\n",
1469                         QETH_CARD_IFNAME(card));
1470                 return rc;
1471         }
1472         return 0;
1473 }
1474
1475 int qeth_l3_set_rx_csum(struct qeth_card *card,
1476         enum qeth_checksum_types csum_type)
1477 {
1478         int rc = 0;
1479
1480         if (card->options.checksum_type == HW_CHECKSUMMING) {
1481                 if ((csum_type != HW_CHECKSUMMING) &&
1482                         (card->state != CARD_STATE_DOWN)) {
1483                         rc = qeth_l3_send_simple_setassparms(card,
1484                                 IPA_INBOUND_CHECKSUM, IPA_CMD_ASS_STOP, 0);
1485                         if (rc)
1486                                 return -EIO;
1487                 }
1488         } else {
1489                 if (csum_type == HW_CHECKSUMMING) {
1490                         if (card->state != CARD_STATE_DOWN) {
1491                                 if (!qeth_is_supported(card,
1492                                     IPA_INBOUND_CHECKSUM))
1493                                         return -EPERM;
1494                                 rc = qeth_l3_send_checksum_command(card);
1495                                 if (rc)
1496                                         return -EIO;
1497                         }
1498                 }
1499         }
1500         card->options.checksum_type = csum_type;
1501         return rc;
1502 }
1503
1504 static int qeth_l3_start_ipa_checksum(struct qeth_card *card)
1505 {
1506         int rc = 0;
1507
1508         QETH_CARD_TEXT(card, 3, "strtcsum");
1509
1510         if (card->options.checksum_type == NO_CHECKSUMMING) {
1511                 dev_info(&card->gdev->dev,
1512                         "Using no checksumming on %s.\n",
1513                         QETH_CARD_IFNAME(card));
1514                 return 0;
1515         }
1516         if (card->options.checksum_type == SW_CHECKSUMMING) {
1517                 dev_info(&card->gdev->dev,
1518                         "Using SW checksumming on %s.\n",
1519                         QETH_CARD_IFNAME(card));
1520                 return 0;
1521         }
1522         if (!qeth_is_supported(card, IPA_INBOUND_CHECKSUM)) {
1523                 dev_info(&card->gdev->dev,
1524                         "Inbound HW Checksumming not "
1525                         "supported on %s,\ncontinuing "
1526                         "using Inbound SW Checksumming\n",
1527                         QETH_CARD_IFNAME(card));
1528                 card->options.checksum_type = SW_CHECKSUMMING;
1529                 return 0;
1530         }
1531         rc = qeth_l3_send_checksum_command(card);
1532         if (!rc)
1533                 dev_info(&card->gdev->dev,
1534                         "HW Checksumming (inbound) enabled\n");
1535
1536         return rc;
1537 }
1538
1539 static int qeth_l3_start_ipa_tx_checksum(struct qeth_card *card)
1540 {
1541         int rc = 0;
1542
1543         if (!qeth_is_supported(card, IPA_OUTBOUND_CHECKSUM))
1544                 return rc;
1545         rc = qeth_l3_send_simple_setassparms(card, IPA_OUTBOUND_CHECKSUM,
1546                           IPA_CMD_ASS_START, 0);
1547         if (rc)
1548                 goto err_out;
1549         rc = qeth_l3_send_simple_setassparms(card, IPA_OUTBOUND_CHECKSUM,
1550                           IPA_CMD_ASS_ENABLE, card->info.tx_csum_mask);
1551         if (rc)
1552                 goto err_out;
1553         dev_info(&card->gdev->dev, "HW TX Checksumming enabled\n");
1554         return rc;
1555 err_out:
1556         dev_warn(&card->gdev->dev, "Enabling HW TX checksumming for %s "
1557                 "failed, using SW TX checksumming\n", QETH_CARD_IFNAME(card));
1558         return rc;
1559 }
1560
1561 static int qeth_l3_start_ipa_tso(struct qeth_card *card)
1562 {
1563         int rc;
1564
1565         QETH_CARD_TEXT(card, 3, "sttso");
1566
1567         if (!qeth_is_supported(card, IPA_OUTBOUND_TSO)) {
1568                 dev_info(&card->gdev->dev,
1569                         "Outbound TSO not supported on %s\n",
1570                         QETH_CARD_IFNAME(card));
1571                 rc = -EOPNOTSUPP;
1572         } else {
1573                 rc = qeth_l3_send_simple_setassparms(card, IPA_OUTBOUND_TSO,
1574                                                 IPA_CMD_ASS_START, 0);
1575                 if (rc)
1576                         dev_warn(&card->gdev->dev, "Starting outbound TCP "
1577                                 "segmentation offload for %s failed\n",
1578                                 QETH_CARD_IFNAME(card));
1579                 else
1580                         dev_info(&card->gdev->dev,
1581                                 "Outbound TSO enabled\n");
1582         }
1583         if (rc && (card->options.large_send == QETH_LARGE_SEND_TSO)) {
1584                 card->options.large_send = QETH_LARGE_SEND_NO;
1585                 card->dev->features &= ~(NETIF_F_TSO | NETIF_F_SG);
1586         }
1587         return rc;
1588 }
1589
1590 static int qeth_l3_start_ipassists(struct qeth_card *card)
1591 {
1592         QETH_CARD_TEXT(card, 3, "strtipas");
1593
1594         qeth_set_access_ctrl_online(card);      /* go on*/
1595         qeth_l3_start_ipa_arp_processing(card); /* go on*/
1596         qeth_l3_start_ipa_ip_fragmentation(card);       /* go on*/
1597         qeth_l3_start_ipa_source_mac(card);     /* go on*/
1598         qeth_l3_start_ipa_vlan(card);           /* go on*/
1599         qeth_l3_start_ipa_multicast(card);              /* go on*/
1600         qeth_l3_start_ipa_ipv6(card);           /* go on*/
1601         qeth_l3_start_ipa_broadcast(card);              /* go on*/
1602         qeth_l3_start_ipa_checksum(card);               /* go on*/
1603         qeth_l3_start_ipa_tx_checksum(card);
1604         qeth_l3_start_ipa_tso(card);            /* go on*/
1605         return 0;
1606 }
1607
1608 static int qeth_l3_iqd_read_initial_mac_cb(struct qeth_card *card,
1609                 struct qeth_reply *reply, unsigned long data)
1610 {
1611         struct qeth_ipa_cmd *cmd;
1612
1613         cmd = (struct qeth_ipa_cmd *) data;
1614         if (cmd->hdr.return_code == 0)
1615                 memcpy(card->dev->dev_addr,
1616                         cmd->data.create_destroy_addr.unique_id, ETH_ALEN);
1617         else
1618                 random_ether_addr(card->dev->dev_addr);
1619
1620         return 0;
1621 }
1622
1623 static int qeth_l3_iqd_read_initial_mac(struct qeth_card *card)
1624 {
1625         int rc = 0;
1626         struct qeth_cmd_buffer *iob;
1627         struct qeth_ipa_cmd *cmd;
1628
1629         QETH_DBF_TEXT(SETUP, 2, "hsrmac");
1630
1631         iob = qeth_get_ipacmd_buffer(card, IPA_CMD_CREATE_ADDR,
1632                                      QETH_PROT_IPV6);
1633         cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
1634         *((__u16 *) &cmd->data.create_destroy_addr.unique_id[6]) =
1635                         card->info.unique_id;
1636
1637         rc = qeth_send_ipa_cmd(card, iob, qeth_l3_iqd_read_initial_mac_cb,
1638                                 NULL);
1639         return rc;
1640 }
1641
1642 static int qeth_l3_get_unique_id_cb(struct qeth_card *card,
1643                 struct qeth_reply *reply, unsigned long data)
1644 {
1645         struct qeth_ipa_cmd *cmd;
1646
1647         cmd = (struct qeth_ipa_cmd *) data;
1648         if (cmd->hdr.return_code == 0)
1649                 card->info.unique_id = *((__u16 *)
1650                                 &cmd->data.create_destroy_addr.unique_id[6]);
1651         else {
1652                 card->info.unique_id =  UNIQUE_ID_IF_CREATE_ADDR_FAILED |
1653                                         UNIQUE_ID_NOT_BY_CARD;
1654                 dev_warn(&card->gdev->dev, "The network adapter failed to "
1655                         "generate a unique ID\n");
1656         }
1657         return 0;
1658 }
1659
1660 static int qeth_l3_get_unique_id(struct qeth_card *card)
1661 {
1662         int rc = 0;
1663         struct qeth_cmd_buffer *iob;
1664         struct qeth_ipa_cmd *cmd;
1665
1666         QETH_DBF_TEXT(SETUP, 2, "guniqeid");
1667
1668         if (!qeth_is_supported(card, IPA_IPV6)) {
1669                 card->info.unique_id =  UNIQUE_ID_IF_CREATE_ADDR_FAILED |
1670                                         UNIQUE_ID_NOT_BY_CARD;
1671                 return 0;
1672         }
1673
1674         iob = qeth_get_ipacmd_buffer(card, IPA_CMD_CREATE_ADDR,
1675                                      QETH_PROT_IPV6);
1676         cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
1677         *((__u16 *) &cmd->data.create_destroy_addr.unique_id[6]) =
1678                         card->info.unique_id;
1679
1680         rc = qeth_send_ipa_cmd(card, iob, qeth_l3_get_unique_id_cb, NULL);
1681         return rc;
1682 }
1683
1684 static int
1685 qeth_diags_trace_cb(struct qeth_card *card, struct qeth_reply *reply,
1686                             unsigned long data)
1687 {
1688         struct qeth_ipa_cmd        *cmd;
1689         __u16 rc;
1690
1691         QETH_DBF_TEXT(SETUP, 2, "diastrcb");
1692
1693         cmd = (struct qeth_ipa_cmd *)data;
1694         rc = cmd->hdr.return_code;
1695         if (rc)
1696                 QETH_CARD_TEXT_(card, 2, "dxter%x", rc);
1697         switch (cmd->data.diagass.action) {
1698         case QETH_DIAGS_CMD_TRACE_QUERY:
1699                 break;
1700         case QETH_DIAGS_CMD_TRACE_DISABLE:
1701                 switch (rc) {
1702                 case 0:
1703                 case IPA_RC_INVALID_SUBCMD:
1704                         card->info.promisc_mode = SET_PROMISC_MODE_OFF;
1705                         dev_info(&card->gdev->dev, "The HiperSockets network "
1706                                 "traffic analyzer is deactivated\n");
1707                         break;
1708                 default:
1709                         break;
1710                 }
1711                 break;
1712         case QETH_DIAGS_CMD_TRACE_ENABLE:
1713                 switch (rc) {
1714                 case 0:
1715                         card->info.promisc_mode = SET_PROMISC_MODE_ON;
1716                         dev_info(&card->gdev->dev, "The HiperSockets network "
1717                                 "traffic analyzer is activated\n");
1718                         break;
1719                 case IPA_RC_HARDWARE_AUTH_ERROR:
1720                         dev_warn(&card->gdev->dev, "The device is not "
1721                                 "authorized to run as a HiperSockets network "
1722                                 "traffic analyzer\n");
1723                         break;
1724                 case IPA_RC_TRACE_ALREADY_ACTIVE:
1725                         dev_warn(&card->gdev->dev, "A HiperSockets "
1726                                 "network traffic analyzer is already "
1727                                 "active in the HiperSockets LAN\n");
1728                         break;
1729                 default:
1730                         break;
1731                 }
1732                 break;
1733         default:
1734                 QETH_DBF_MESSAGE(2, "Unknown sniffer action (0x%04x) on %s\n",
1735                         cmd->data.diagass.action, QETH_CARD_IFNAME(card));
1736         }
1737
1738         return 0;
1739 }
1740
1741 static int
1742 qeth_diags_trace(struct qeth_card *card, enum qeth_diags_trace_cmds diags_cmd)
1743 {
1744         struct qeth_cmd_buffer *iob;
1745         struct qeth_ipa_cmd    *cmd;
1746
1747         QETH_DBF_TEXT(SETUP, 2, "diagtrac");
1748
1749         iob = qeth_get_ipacmd_buffer(card, IPA_CMD_SET_DIAG_ASS, 0);
1750         cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
1751         cmd->data.diagass.subcmd_len = 16;
1752         cmd->data.diagass.subcmd = QETH_DIAGS_CMD_TRACE;
1753         cmd->data.diagass.type = QETH_DIAGS_TYPE_HIPERSOCKET;
1754         cmd->data.diagass.action = diags_cmd;
1755         return qeth_send_ipa_cmd(card, iob, qeth_diags_trace_cb, NULL);
1756 }
1757
1758 static void qeth_l3_get_mac_for_ipm(__u32 ipm, char *mac,
1759                                 struct net_device *dev)
1760 {
1761         if (dev->type == ARPHRD_IEEE802_TR)
1762                 ip_tr_mc_map(ipm, mac);
1763         else
1764                 ip_eth_mc_map(ipm, mac);
1765 }
1766
1767 static void qeth_l3_add_mc(struct qeth_card *card, struct in_device *in4_dev)
1768 {
1769         struct qeth_ipaddr *ipm;
1770         struct ip_mc_list *im4;
1771         char buf[MAX_ADDR_LEN];
1772
1773         QETH_CARD_TEXT(card, 4, "addmc");
1774         for (im4 = rcu_dereference(in4_dev->mc_list); im4 != NULL;
1775              im4 = rcu_dereference(im4->next_rcu)) {
1776                 qeth_l3_get_mac_for_ipm(im4->multiaddr, buf, in4_dev->dev);
1777                 ipm = qeth_l3_get_addr_buffer(QETH_PROT_IPV4);
1778                 if (!ipm)
1779                         continue;
1780                 ipm->u.a4.addr = im4->multiaddr;
1781                 memcpy(ipm->mac, buf, OSA_ADDR_LEN);
1782                 ipm->is_multicast = 1;
1783                 if (!qeth_l3_add_ip(card, ipm))
1784                         kfree(ipm);
1785         }
1786 }
1787
1788 static void qeth_l3_add_vlan_mc(struct qeth_card *card)
1789 {
1790         struct in_device *in_dev;
1791         struct vlan_group *vg;
1792         int i;
1793
1794         QETH_CARD_TEXT(card, 4, "addmcvl");
1795         if (!qeth_is_supported(card, IPA_FULL_VLAN) || (card->vlangrp == NULL))
1796                 return;
1797
1798         vg = card->vlangrp;
1799         for (i = 0; i < VLAN_N_VID; i++) {
1800                 struct net_device *netdev = vlan_group_get_device(vg, i);
1801                 if (netdev == NULL ||
1802                     !(netdev->flags & IFF_UP))
1803                         continue;
1804                 in_dev = in_dev_get(netdev);
1805                 if (!in_dev)
1806                         continue;
1807                 rcu_read_lock();
1808                 qeth_l3_add_mc(card, in_dev);
1809                 rcu_read_unlock();
1810                 in_dev_put(in_dev);
1811         }
1812 }
1813
1814 static void qeth_l3_add_multicast_ipv4(struct qeth_card *card)
1815 {
1816         struct in_device *in4_dev;
1817
1818         QETH_CARD_TEXT(card, 4, "chkmcv4");
1819         in4_dev = in_dev_get(card->dev);
1820         if (in4_dev == NULL)
1821                 return;
1822         rcu_read_lock();
1823         qeth_l3_add_mc(card, in4_dev);
1824         qeth_l3_add_vlan_mc(card);
1825         rcu_read_unlock();
1826         in_dev_put(in4_dev);
1827 }
1828
1829 #ifdef CONFIG_QETH_IPV6
1830 static void qeth_l3_add_mc6(struct qeth_card *card, struct inet6_dev *in6_dev)
1831 {
1832         struct qeth_ipaddr *ipm;
1833         struct ifmcaddr6 *im6;
1834         char buf[MAX_ADDR_LEN];
1835
1836         QETH_CARD_TEXT(card, 4, "addmc6");
1837         for (im6 = in6_dev->mc_list; im6 != NULL; im6 = im6->next) {
1838                 ndisc_mc_map(&im6->mca_addr, buf, in6_dev->dev, 0);
1839                 ipm = qeth_l3_get_addr_buffer(QETH_PROT_IPV6);
1840                 if (!ipm)
1841                         continue;
1842                 ipm->is_multicast = 1;
1843                 memcpy(ipm->mac, buf, OSA_ADDR_LEN);
1844                 memcpy(&ipm->u.a6.addr, &im6->mca_addr.s6_addr,
1845                        sizeof(struct in6_addr));
1846                 if (!qeth_l3_add_ip(card, ipm))
1847                         kfree(ipm);
1848         }
1849 }
1850
1851 static void qeth_l3_add_vlan_mc6(struct qeth_card *card)
1852 {
1853         struct inet6_dev *in_dev;
1854         struct vlan_group *vg;
1855         int i;
1856
1857         QETH_CARD_TEXT(card, 4, "admc6vl");
1858         if (!qeth_is_supported(card, IPA_FULL_VLAN) || (card->vlangrp == NULL))
1859                 return;
1860
1861         vg = card->vlangrp;
1862         for (i = 0; i < VLAN_N_VID; i++) {
1863                 struct net_device *netdev = vlan_group_get_device(vg, i);
1864                 if (netdev == NULL ||
1865                     !(netdev->flags & IFF_UP))
1866                         continue;
1867                 in_dev = in6_dev_get(netdev);
1868                 if (!in_dev)
1869                         continue;
1870                 read_lock_bh(&in_dev->lock);
1871                 qeth_l3_add_mc6(card, in_dev);
1872                 read_unlock_bh(&in_dev->lock);
1873                 in6_dev_put(in_dev);
1874         }
1875 }
1876
1877 static void qeth_l3_add_multicast_ipv6(struct qeth_card *card)
1878 {
1879         struct inet6_dev *in6_dev;
1880
1881         QETH_CARD_TEXT(card, 4, "chkmcv6");
1882         if (!qeth_is_supported(card, IPA_IPV6))
1883                 return ;
1884         in6_dev = in6_dev_get(card->dev);
1885         if (in6_dev == NULL)
1886                 return;
1887         read_lock_bh(&in6_dev->lock);
1888         qeth_l3_add_mc6(card, in6_dev);
1889         qeth_l3_add_vlan_mc6(card);
1890         read_unlock_bh(&in6_dev->lock);
1891         in6_dev_put(in6_dev);
1892 }
1893 #endif /* CONFIG_QETH_IPV6 */
1894
1895 static void qeth_l3_free_vlan_addresses4(struct qeth_card *card,
1896                         unsigned short vid)
1897 {
1898         struct in_device *in_dev;
1899         struct in_ifaddr *ifa;
1900         struct qeth_ipaddr *addr;
1901
1902         QETH_CARD_TEXT(card, 4, "frvaddr4");
1903
1904         in_dev = in_dev_get(vlan_group_get_device(card->vlangrp, vid));
1905         if (!in_dev)
1906                 return;
1907         for (ifa = in_dev->ifa_list; ifa; ifa = ifa->ifa_next) {
1908                 addr = qeth_l3_get_addr_buffer(QETH_PROT_IPV4);
1909                 if (addr) {
1910                         addr->u.a4.addr = ifa->ifa_address;
1911                         addr->u.a4.mask = ifa->ifa_mask;
1912                         addr->type = QETH_IP_TYPE_NORMAL;
1913                         if (!qeth_l3_delete_ip(card, addr))
1914                                 kfree(addr);
1915                 }
1916         }
1917         in_dev_put(in_dev);
1918 }
1919
1920 static void qeth_l3_free_vlan_addresses6(struct qeth_card *card,
1921                         unsigned short vid)
1922 {
1923 #ifdef CONFIG_QETH_IPV6
1924         struct inet6_dev *in6_dev;
1925         struct inet6_ifaddr *ifa;
1926         struct qeth_ipaddr *addr;
1927
1928         QETH_CARD_TEXT(card, 4, "frvaddr6");
1929
1930         in6_dev = in6_dev_get(vlan_group_get_device(card->vlangrp, vid));
1931         if (!in6_dev)
1932                 return;
1933         list_for_each_entry(ifa, &in6_dev->addr_list, if_list) {
1934                 addr = qeth_l3_get_addr_buffer(QETH_PROT_IPV6);
1935                 if (addr) {
1936                         memcpy(&addr->u.a6.addr, &ifa->addr,
1937                                sizeof(struct in6_addr));
1938                         addr->u.a6.pfxlen = ifa->prefix_len;
1939                         addr->type = QETH_IP_TYPE_NORMAL;
1940                         if (!qeth_l3_delete_ip(card, addr))
1941                                 kfree(addr);
1942                 }
1943         }
1944         in6_dev_put(in6_dev);
1945 #endif /* CONFIG_QETH_IPV6 */
1946 }
1947
1948 static void qeth_l3_free_vlan_addresses(struct qeth_card *card,
1949                         unsigned short vid)
1950 {
1951         if (!card->vlangrp)
1952                 return;
1953         qeth_l3_free_vlan_addresses4(card, vid);
1954         qeth_l3_free_vlan_addresses6(card, vid);
1955 }
1956
1957 static void qeth_l3_vlan_rx_register(struct net_device *dev,
1958                         struct vlan_group *grp)
1959 {
1960         struct qeth_card *card = dev->ml_priv;
1961         unsigned long flags;
1962
1963         QETH_CARD_TEXT(card, 4, "vlanreg");
1964         spin_lock_irqsave(&card->vlanlock, flags);
1965         card->vlangrp = grp;
1966         spin_unlock_irqrestore(&card->vlanlock, flags);
1967 }
1968
1969 static void qeth_l3_vlan_rx_add_vid(struct net_device *dev, unsigned short vid)
1970 {
1971         return;
1972 }
1973
1974 static void qeth_l3_vlan_rx_kill_vid(struct net_device *dev, unsigned short vid)
1975 {
1976         struct qeth_card *card = dev->ml_priv;
1977         unsigned long flags;
1978
1979         QETH_CARD_TEXT_(card, 4, "kid:%d", vid);
1980         if (qeth_wait_for_threads(card, QETH_RECOVER_THREAD)) {
1981                 QETH_CARD_TEXT(card, 3, "kidREC");
1982                 return;
1983         }
1984         spin_lock_irqsave(&card->vlanlock, flags);
1985         /* unregister IP addresses of vlan device */
1986         qeth_l3_free_vlan_addresses(card, vid);
1987         vlan_group_set_device(card->vlangrp, vid, NULL);
1988         spin_unlock_irqrestore(&card->vlanlock, flags);
1989         qeth_l3_set_multicast_list(card->dev);
1990 }
1991
1992 static inline int qeth_l3_rebuild_skb(struct qeth_card *card,
1993                         struct sk_buff *skb, struct qeth_hdr *hdr,
1994                         unsigned short *vlan_id)
1995 {
1996         __be16 prot;
1997         struct iphdr *ip_hdr;
1998         unsigned char tg_addr[MAX_ADDR_LEN];
1999         int is_vlan = 0;
2000
2001         if (!(hdr->hdr.l3.flags & QETH_HDR_PASSTHRU)) {
2002                 prot = htons((hdr->hdr.l3.flags & QETH_HDR_IPV6)? ETH_P_IPV6 :
2003                               ETH_P_IP);
2004                 switch (hdr->hdr.l3.flags & QETH_HDR_CAST_MASK) {
2005                 case QETH_CAST_MULTICAST:
2006                         switch (prot) {
2007 #ifdef CONFIG_QETH_IPV6
2008                         case __constant_htons(ETH_P_IPV6):
2009                                 ndisc_mc_map((struct in6_addr *)
2010                                      skb->data + 24,
2011                                      tg_addr, card->dev, 0);
2012                                 break;
2013 #endif
2014                         case __constant_htons(ETH_P_IP):
2015                                 ip_hdr = (struct iphdr *)skb->data;
2016                                 (card->dev->type == ARPHRD_IEEE802_TR) ?
2017                                 ip_tr_mc_map(ip_hdr->daddr, tg_addr):
2018                                 ip_eth_mc_map(ip_hdr->daddr, tg_addr);
2019                                 break;
2020                         default:
2021                                 memcpy(tg_addr, card->dev->broadcast,
2022                                         card->dev->addr_len);
2023                         }
2024                         card->stats.multicast++;
2025                         skb->pkt_type = PACKET_MULTICAST;
2026                         break;
2027                 case QETH_CAST_BROADCAST:
2028                         memcpy(tg_addr, card->dev->broadcast,
2029                                 card->dev->addr_len);
2030                         card->stats.multicast++;
2031                         skb->pkt_type = PACKET_BROADCAST;
2032                         break;
2033                 case QETH_CAST_UNICAST:
2034                 case QETH_CAST_ANYCAST:
2035                 case QETH_CAST_NOCAST:
2036                 default:
2037                         if (card->options.sniffer)
2038                                 skb->pkt_type = PACKET_OTHERHOST;
2039                         else
2040                                 skb->pkt_type = PACKET_HOST;
2041                         memcpy(tg_addr, card->dev->dev_addr,
2042                                 card->dev->addr_len);
2043                 }
2044                 if (hdr->hdr.l3.ext_flags & QETH_HDR_EXT_SRC_MAC_ADDR)
2045                         card->dev->header_ops->create(skb, card->dev, prot,
2046                                 tg_addr, &hdr->hdr.l3.dest_addr[2],
2047                                 card->dev->addr_len);
2048                 else
2049                         card->dev->header_ops->create(skb, card->dev, prot,
2050                                 tg_addr, "FAKELL", card->dev->addr_len);
2051         }
2052
2053 #ifdef CONFIG_TR
2054         if (card->dev->type == ARPHRD_IEEE802_TR)
2055                 skb->protocol = tr_type_trans(skb, card->dev);
2056         else
2057 #endif
2058                 skb->protocol = eth_type_trans(skb, card->dev);
2059
2060         if (hdr->hdr.l3.ext_flags &
2061             (QETH_HDR_EXT_VLAN_FRAME | QETH_HDR_EXT_INCLUDE_VLAN_TAG)) {
2062                 *vlan_id = (hdr->hdr.l3.ext_flags & QETH_HDR_EXT_VLAN_FRAME) ?
2063                  hdr->hdr.l3.vlan_id : *((u16 *)&hdr->hdr.l3.dest_addr[12]);
2064                 is_vlan = 1;
2065         }
2066
2067         switch (card->options.checksum_type) {
2068         case SW_CHECKSUMMING:
2069                 skb->ip_summed = CHECKSUM_NONE;
2070                 break;
2071         case NO_CHECKSUMMING:
2072                 skb->ip_summed = CHECKSUM_UNNECESSARY;
2073                 break;
2074         case HW_CHECKSUMMING:
2075                 if ((hdr->hdr.l3.ext_flags &
2076                     (QETH_HDR_EXT_CSUM_HDR_REQ |
2077                      QETH_HDR_EXT_CSUM_TRANSP_REQ)) ==
2078                     (QETH_HDR_EXT_CSUM_HDR_REQ |
2079                      QETH_HDR_EXT_CSUM_TRANSP_REQ))
2080                         skb->ip_summed = CHECKSUM_UNNECESSARY;
2081                 else
2082                         skb->ip_summed = CHECKSUM_NONE;
2083         }
2084
2085         return is_vlan;
2086 }
2087
2088 static int qeth_l3_process_inbound_buffer(struct qeth_card *card,
2089                                 int budget, int *done)
2090 {
2091         int work_done = 0;
2092         struct sk_buff *skb;
2093         struct qeth_hdr *hdr;
2094         __u16 vlan_tag = 0;
2095         int is_vlan;
2096         unsigned int len;
2097
2098         *done = 0;
2099         BUG_ON(!budget);
2100         while (budget) {
2101                 skb = qeth_core_get_next_skb(card,
2102                         card->qdio.in_q->bufs[card->rx.b_index].buffer,
2103                         &card->rx.b_element, &card->rx.e_offset, &hdr);
2104                 if (!skb) {
2105                         *done = 1;
2106                         break;
2107                 }
2108                 skb->dev = card->dev;
2109                 switch (hdr->hdr.l3.id) {
2110                 case QETH_HEADER_TYPE_LAYER3:
2111                         is_vlan = qeth_l3_rebuild_skb(card, skb, hdr,
2112                                                       &vlan_tag);
2113                         len = skb->len;
2114                         if (is_vlan && !card->options.sniffer)
2115                                 vlan_gro_receive(&card->napi, card->vlangrp,
2116                                         vlan_tag, skb);
2117                         else
2118                                 napi_gro_receive(&card->napi, skb);
2119                         break;
2120                 case QETH_HEADER_TYPE_LAYER2: /* for HiperSockets sniffer */
2121                         skb->pkt_type = PACKET_HOST;
2122                         skb->protocol = eth_type_trans(skb, skb->dev);
2123                         len = skb->len;
2124                         netif_receive_skb(skb);
2125                         break;
2126                 default:
2127                         dev_kfree_skb_any(skb);
2128                         QETH_CARD_TEXT(card, 3, "inbunkno");
2129                         QETH_DBF_HEX(CTRL, 3, hdr, QETH_DBF_CTRL_LEN);
2130                         continue;
2131                 }
2132                 work_done++;
2133                 budget--;
2134                 card->stats.rx_packets++;
2135                 card->stats.rx_bytes += len;
2136         }
2137         return work_done;
2138 }
2139
2140 static int qeth_l3_poll(struct napi_struct *napi, int budget)
2141 {
2142         struct qeth_card *card = container_of(napi, struct qeth_card, napi);
2143         int work_done = 0;
2144         struct qeth_qdio_buffer *buffer;
2145         int done;
2146         int new_budget = budget;
2147
2148         if (card->options.performance_stats) {
2149                 card->perf_stats.inbound_cnt++;
2150                 card->perf_stats.inbound_start_time = qeth_get_micros();
2151         }
2152
2153         while (1) {
2154                 if (!card->rx.b_count) {
2155                         card->rx.qdio_err = 0;
2156                         card->rx.b_count = qdio_get_next_buffers(
2157                                 card->data.ccwdev, 0, &card->rx.b_index,
2158                                 &card->rx.qdio_err);
2159                         if (card->rx.b_count <= 0) {
2160                                 card->rx.b_count = 0;
2161                                 break;
2162                         }
2163                         card->rx.b_element =
2164                                 &card->qdio.in_q->bufs[card->rx.b_index]
2165                                 .buffer->element[0];
2166                         card->rx.e_offset = 0;
2167                 }
2168
2169                 while (card->rx.b_count) {
2170                         buffer = &card->qdio.in_q->bufs[card->rx.b_index];
2171                         if (!(card->rx.qdio_err &&
2172                             qeth_check_qdio_errors(card, buffer->buffer,
2173                             card->rx.qdio_err, "qinerr")))
2174                                 work_done += qeth_l3_process_inbound_buffer(
2175                                         card, new_budget, &done);
2176                         else
2177                                 done = 1;
2178
2179                         if (done) {
2180                                 if (card->options.performance_stats)
2181                                         card->perf_stats.bufs_rec++;
2182                                 qeth_put_buffer_pool_entry(card,
2183                                         buffer->pool_entry);
2184                                 qeth_queue_input_buffer(card, card->rx.b_index);
2185                                 card->rx.b_count--;
2186                                 if (card->rx.b_count) {
2187                                         card->rx.b_index =
2188                                                 (card->rx.b_index + 1) %
2189                                                 QDIO_MAX_BUFFERS_PER_Q;
2190                                         card->rx.b_element =
2191                                                 &card->qdio.in_q
2192                                                 ->bufs[card->rx.b_index]
2193                                                 .buffer->element[0];
2194                                         card->rx.e_offset = 0;
2195                                 }
2196                         }
2197
2198                         if (work_done >= budget)
2199                                 goto out;
2200                         else
2201                                 new_budget = budget - work_done;
2202                 }
2203         }
2204
2205         napi_complete(napi);
2206         if (qdio_start_irq(card->data.ccwdev, 0))
2207                 napi_schedule(&card->napi);
2208 out:
2209         if (card->options.performance_stats)
2210                 card->perf_stats.inbound_time += qeth_get_micros() -
2211                         card->perf_stats.inbound_start_time;
2212         return work_done;
2213 }
2214
2215 static int qeth_l3_verify_vlan_dev(struct net_device *dev,
2216                         struct qeth_card *card)
2217 {
2218         int rc = 0;
2219         struct vlan_group *vg;
2220         int i;
2221
2222         vg = card->vlangrp;
2223         if (!vg)
2224                 return rc;
2225
2226         for (i = 0; i < VLAN_N_VID; i++) {
2227                 if (vlan_group_get_device(vg, i) == dev) {
2228                         rc = QETH_VLAN_CARD;
2229                         break;
2230                 }
2231         }
2232
2233         if (rc && !(vlan_dev_real_dev(dev)->ml_priv == (void *)card))
2234                 return 0;
2235
2236         return rc;
2237 }
2238
2239 static int qeth_l3_verify_dev(struct net_device *dev)
2240 {
2241         struct qeth_card *card;
2242         unsigned long flags;
2243         int rc = 0;
2244
2245         read_lock_irqsave(&qeth_core_card_list.rwlock, flags);
2246         list_for_each_entry(card, &qeth_core_card_list.list, list) {
2247                 if (card->dev == dev) {
2248                         rc = QETH_REAL_CARD;
2249                         break;
2250                 }
2251                 rc = qeth_l3_verify_vlan_dev(dev, card);
2252                 if (rc)
2253                         break;
2254         }
2255         read_unlock_irqrestore(&qeth_core_card_list.rwlock, flags);
2256
2257         return rc;
2258 }
2259
2260 static struct qeth_card *qeth_l3_get_card_from_dev(struct net_device *dev)
2261 {
2262         struct qeth_card *card = NULL;
2263         int rc;
2264
2265         rc = qeth_l3_verify_dev(dev);
2266         if (rc == QETH_REAL_CARD)
2267                 card = dev->ml_priv;
2268         else if (rc == QETH_VLAN_CARD)
2269                 card = vlan_dev_real_dev(dev)->ml_priv;
2270         if (card && card->options.layer2)
2271                 card = NULL;
2272         if (card)
2273                 QETH_CARD_TEXT_(card, 4, "%d", rc);
2274         return card ;
2275 }
2276
2277 static int qeth_l3_stop_card(struct qeth_card *card, int recovery_mode)
2278 {
2279         int rc = 0;
2280
2281         QETH_DBF_TEXT(SETUP, 2, "stopcard");
2282         QETH_DBF_HEX(SETUP, 2, &card, sizeof(void *));
2283
2284         qeth_set_allowed_threads(card, 0, 1);
2285         if (card->options.sniffer &&
2286             (card->info.promisc_mode == SET_PROMISC_MODE_ON))
2287                 qeth_diags_trace(card, QETH_DIAGS_CMD_TRACE_DISABLE);
2288         if (card->read.state == CH_STATE_UP &&
2289             card->write.state == CH_STATE_UP &&
2290             (card->state == CARD_STATE_UP)) {
2291                 if (recovery_mode)
2292                         qeth_l3_stop(card->dev);
2293                 else {
2294                         rtnl_lock();
2295                         dev_close(card->dev);
2296                         rtnl_unlock();
2297                 }
2298                 card->state = CARD_STATE_SOFTSETUP;
2299         }
2300         if (card->state == CARD_STATE_SOFTSETUP) {
2301                 qeth_l3_clear_ip_list(card, 1);
2302                 qeth_clear_ipacmd_list(card);
2303                 card->state = CARD_STATE_HARDSETUP;
2304         }
2305         if (card->state == CARD_STATE_HARDSETUP) {
2306                 qeth_qdio_clear_card(card, 0);
2307                 qeth_clear_qdio_buffers(card);
2308                 qeth_clear_working_pool_list(card);
2309                 card->state = CARD_STATE_DOWN;
2310         }
2311         if (card->state == CARD_STATE_DOWN) {
2312                 qeth_clear_cmd_buffers(&card->read);
2313                 qeth_clear_cmd_buffers(&card->write);
2314         }
2315         return rc;
2316 }
2317
2318 /*
2319  * test for and Switch promiscuous mode (on or off)
2320  *  either for guestlan or HiperSocket Sniffer
2321  */
2322 static void
2323 qeth_l3_handle_promisc_mode(struct qeth_card *card)
2324 {
2325         struct net_device *dev = card->dev;
2326
2327         if (((dev->flags & IFF_PROMISC) &&
2328              (card->info.promisc_mode == SET_PROMISC_MODE_ON)) ||
2329             (!(dev->flags & IFF_PROMISC) &&
2330              (card->info.promisc_mode == SET_PROMISC_MODE_OFF)))
2331                 return;
2332
2333         if (card->info.guestlan) {              /* Guestlan trace */
2334                 if (qeth_adp_supported(card, IPA_SETADP_SET_PROMISC_MODE))
2335                         qeth_setadp_promisc_mode(card);
2336         } else if (card->options.sniffer &&     /* HiperSockets trace */
2337                    qeth_adp_supported(card, IPA_SETADP_SET_DIAG_ASSIST)) {
2338                 if (dev->flags & IFF_PROMISC) {
2339                         QETH_CARD_TEXT(card, 3, "+promisc");
2340                         qeth_diags_trace(card, QETH_DIAGS_CMD_TRACE_ENABLE);
2341                 } else {
2342                         QETH_CARD_TEXT(card, 3, "-promisc");
2343                         qeth_diags_trace(card, QETH_DIAGS_CMD_TRACE_DISABLE);
2344                 }
2345         }
2346 }
2347
2348 static void qeth_l3_set_multicast_list(struct net_device *dev)
2349 {
2350         struct qeth_card *card = dev->ml_priv;
2351
2352         QETH_CARD_TEXT(card, 3, "setmulti");
2353         if (qeth_threads_running(card, QETH_RECOVER_THREAD) &&
2354             (card->state != CARD_STATE_UP))
2355                 return;
2356         if (!card->options.sniffer) {
2357                 qeth_l3_delete_mc_addresses(card);
2358                 qeth_l3_add_multicast_ipv4(card);
2359 #ifdef CONFIG_QETH_IPV6
2360                 qeth_l3_add_multicast_ipv6(card);
2361 #endif
2362                 qeth_l3_set_ip_addr_list(card);
2363                 if (!qeth_adp_supported(card, IPA_SETADP_SET_PROMISC_MODE))
2364                         return;
2365         }
2366         qeth_l3_handle_promisc_mode(card);
2367 }
2368
2369 static const char *qeth_l3_arp_get_error_cause(int *rc)
2370 {
2371         switch (*rc) {
2372         case QETH_IPA_ARP_RC_FAILED:
2373                 *rc = -EIO;
2374                 return "operation failed";
2375         case QETH_IPA_ARP_RC_NOTSUPP:
2376                 *rc = -EOPNOTSUPP;
2377                 return "operation not supported";
2378         case QETH_IPA_ARP_RC_OUT_OF_RANGE:
2379                 *rc = -EINVAL;
2380                 return "argument out of range";
2381         case QETH_IPA_ARP_RC_Q_NOTSUPP:
2382                 *rc = -EOPNOTSUPP;
2383                 return "query operation not supported";
2384         case QETH_IPA_ARP_RC_Q_NO_DATA:
2385                 *rc = -ENOENT;
2386                 return "no query data available";
2387         default:
2388                 return "unknown error";
2389         }
2390 }
2391
2392 static int qeth_l3_arp_set_no_entries(struct qeth_card *card, int no_entries)
2393 {
2394         int tmp;
2395         int rc;
2396
2397         QETH_CARD_TEXT(card, 3, "arpstnoe");
2398
2399         /*
2400          * currently GuestLAN only supports the ARP assist function
2401          * IPA_CMD_ASS_ARP_QUERY_INFO, but not IPA_CMD_ASS_ARP_SET_NO_ENTRIES;
2402          * thus we say EOPNOTSUPP for this ARP function
2403          */
2404         if (card->info.guestlan)
2405                 return -EOPNOTSUPP;
2406         if (!qeth_is_supported(card, IPA_ARP_PROCESSING)) {
2407                 return -EOPNOTSUPP;
2408         }
2409         rc = qeth_l3_send_simple_setassparms(card, IPA_ARP_PROCESSING,
2410                                           IPA_CMD_ASS_ARP_SET_NO_ENTRIES,
2411                                           no_entries);
2412         if (rc) {
2413                 tmp = rc;
2414                 QETH_DBF_MESSAGE(2, "Could not set number of ARP entries on "
2415                         "%s: %s (0x%x/%d)\n", QETH_CARD_IFNAME(card),
2416                         qeth_l3_arp_get_error_cause(&rc), tmp, tmp);
2417         }
2418         return rc;
2419 }
2420
2421 static __u32 get_arp_entry_size(struct qeth_card *card,
2422                         struct qeth_arp_query_data *qdata,
2423                         struct qeth_arp_entrytype *type, __u8 strip_entries)
2424 {
2425         __u32 rc;
2426         __u8 is_hsi;
2427
2428         is_hsi = qdata->reply_bits == 5;
2429         if (type->ip == QETHARP_IP_ADDR_V4) {
2430                 QETH_CARD_TEXT(card, 4, "arpev4");
2431                 if (strip_entries) {
2432                         rc = is_hsi ? sizeof(struct qeth_arp_qi_entry5_short) :
2433                                 sizeof(struct qeth_arp_qi_entry7_short);
2434                 } else {
2435                         rc = is_hsi ? sizeof(struct qeth_arp_qi_entry5) :
2436                                 sizeof(struct qeth_arp_qi_entry7);
2437                 }
2438         } else if (type->ip == QETHARP_IP_ADDR_V6) {
2439                 QETH_CARD_TEXT(card, 4, "arpev6");
2440                 if (strip_entries) {
2441                         rc = is_hsi ?
2442                                 sizeof(struct qeth_arp_qi_entry5_short_ipv6) :
2443                                 sizeof(struct qeth_arp_qi_entry7_short_ipv6);
2444                 } else {
2445                         rc = is_hsi ?
2446                                 sizeof(struct qeth_arp_qi_entry5_ipv6) :
2447                                 sizeof(struct qeth_arp_qi_entry7_ipv6);
2448                 }
2449         } else {
2450                 QETH_CARD_TEXT(card, 4, "arpinv");
2451                 rc = 0;
2452         }
2453
2454         return rc;
2455 }
2456
2457 static int arpentry_matches_prot(struct qeth_arp_entrytype *type, __u16 prot)
2458 {
2459         return (type->ip == QETHARP_IP_ADDR_V4 && prot == QETH_PROT_IPV4) ||
2460                 (type->ip == QETHARP_IP_ADDR_V6 && prot == QETH_PROT_IPV6);
2461 }
2462
2463 static int qeth_l3_arp_query_cb(struct qeth_card *card,
2464                 struct qeth_reply *reply, unsigned long data)
2465 {
2466         struct qeth_ipa_cmd *cmd;
2467         struct qeth_arp_query_data *qdata;
2468         struct qeth_arp_query_info *qinfo;
2469         int i;
2470         int e;
2471         int entrybytes_done;
2472         int stripped_bytes;
2473         __u8 do_strip_entries;
2474
2475         QETH_CARD_TEXT(card, 3, "arpquecb");
2476
2477         qinfo = (struct qeth_arp_query_info *) reply->param;
2478         cmd = (struct qeth_ipa_cmd *) data;
2479         QETH_CARD_TEXT_(card, 4, "%i", cmd->hdr.prot_version);
2480         if (cmd->hdr.return_code) {
2481                 QETH_CARD_TEXT(card, 4, "arpcberr");
2482                 QETH_CARD_TEXT_(card, 4, "%i", cmd->hdr.return_code);
2483                 return 0;
2484         }
2485         if (cmd->data.setassparms.hdr.return_code) {
2486                 cmd->hdr.return_code = cmd->data.setassparms.hdr.return_code;
2487                 QETH_CARD_TEXT(card, 4, "setaperr");
2488                 QETH_CARD_TEXT_(card, 4, "%i", cmd->hdr.return_code);
2489                 return 0;
2490         }
2491         qdata = &cmd->data.setassparms.data.query_arp;
2492         QETH_CARD_TEXT_(card, 4, "anoen%i", qdata->no_entries);
2493
2494         do_strip_entries = (qinfo->mask_bits & QETH_QARP_STRIP_ENTRIES) > 0;
2495         stripped_bytes = do_strip_entries ? QETH_QARP_MEDIASPECIFIC_BYTES : 0;
2496         entrybytes_done = 0;
2497         for (e = 0; e < qdata->no_entries; ++e) {
2498                 char *cur_entry;
2499                 __u32 esize;
2500                 struct qeth_arp_entrytype *etype;
2501
2502                 cur_entry = &qdata->data + entrybytes_done;
2503                 etype = &((struct qeth_arp_qi_entry5 *) cur_entry)->type;
2504                 if (!arpentry_matches_prot(etype, cmd->hdr.prot_version)) {
2505                         QETH_CARD_TEXT(card, 4, "pmis");
2506                         QETH_CARD_TEXT_(card, 4, "%i", etype->ip);
2507                         break;
2508                 }
2509                 esize = get_arp_entry_size(card, qdata, etype,
2510                         do_strip_entries);
2511                 QETH_CARD_TEXT_(card, 5, "esz%i", esize);
2512                 if (!esize)
2513                         break;
2514
2515                 if ((qinfo->udata_len - qinfo->udata_offset) < esize) {
2516                         QETH_CARD_TEXT_(card, 4, "qaer3%i", -ENOMEM);
2517                         cmd->hdr.return_code = -ENOMEM;
2518                         goto out_error;
2519                 }
2520
2521                 memcpy(qinfo->udata + qinfo->udata_offset,
2522                         &qdata->data + entrybytes_done + stripped_bytes,
2523                         esize);
2524                 entrybytes_done += esize + stripped_bytes;
2525                 qinfo->udata_offset += esize;
2526                 ++qinfo->no_entries;
2527         }
2528         /* check if all replies received ... */
2529         if (cmd->data.setassparms.hdr.seq_no <
2530             cmd->data.setassparms.hdr.number_of_replies)
2531                 return 1;
2532         QETH_CARD_TEXT_(card, 4, "nove%i", qinfo->no_entries);
2533         memcpy(qinfo->udata, &qinfo->no_entries, 4);
2534         /* keep STRIP_ENTRIES flag so the user program can distinguish
2535          * stripped entries from normal ones */
2536         if (qinfo->mask_bits & QETH_QARP_STRIP_ENTRIES)
2537                 qdata->reply_bits |= QETH_QARP_STRIP_ENTRIES;
2538         memcpy(qinfo->udata + QETH_QARP_MASK_OFFSET, &qdata->reply_bits, 2);
2539         QETH_CARD_TEXT_(card, 4, "rc%i", 0);
2540         return 0;
2541 out_error:
2542         i = 0;
2543         memcpy(qinfo->udata, &i, 4);
2544         return 0;
2545 }
2546
2547 static int qeth_l3_send_ipa_arp_cmd(struct qeth_card *card,
2548                 struct qeth_cmd_buffer *iob, int len,
2549                 int (*reply_cb)(struct qeth_card *, struct qeth_reply *,
2550                         unsigned long),
2551                 void *reply_param)
2552 {
2553         QETH_CARD_TEXT(card, 4, "sendarp");
2554
2555         memcpy(iob->data, IPA_PDU_HEADER, IPA_PDU_HEADER_SIZE);
2556         memcpy(QETH_IPA_CMD_DEST_ADDR(iob->data),
2557                &card->token.ulp_connection_r, QETH_MPC_TOKEN_LENGTH);
2558         return qeth_send_control_data(card, IPA_PDU_HEADER_SIZE + len, iob,
2559                                       reply_cb, reply_param);
2560 }
2561
2562 static int qeth_l3_query_arp_cache_info(struct qeth_card *card,
2563         enum qeth_prot_versions prot,
2564         struct qeth_arp_query_info *qinfo)
2565 {
2566         struct qeth_cmd_buffer *iob;
2567         struct qeth_ipa_cmd *cmd;
2568         int tmp;
2569         int rc;
2570
2571         QETH_CARD_TEXT_(card, 3, "qarpipv%i", prot);
2572
2573         iob = qeth_l3_get_setassparms_cmd(card, IPA_ARP_PROCESSING,
2574                         IPA_CMD_ASS_ARP_QUERY_INFO,
2575                         sizeof(struct qeth_arp_query_data) - sizeof(char),
2576                         prot);
2577         cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
2578         cmd->data.setassparms.data.query_arp.request_bits = 0x000F;
2579         cmd->data.setassparms.data.query_arp.reply_bits = 0;
2580         cmd->data.setassparms.data.query_arp.no_entries = 0;
2581         rc = qeth_l3_send_ipa_arp_cmd(card, iob,
2582                            QETH_SETASS_BASE_LEN+QETH_ARP_CMD_LEN,
2583                            qeth_l3_arp_query_cb, (void *)qinfo);
2584         if (rc) {
2585                 tmp = rc;
2586                 QETH_DBF_MESSAGE(2,
2587                         "Error while querying ARP cache on %s: %s "
2588                         "(0x%x/%d)\n", QETH_CARD_IFNAME(card),
2589                         qeth_l3_arp_get_error_cause(&rc), tmp, tmp);
2590         }
2591
2592         return rc;
2593 }
2594
2595 static int qeth_l3_arp_query(struct qeth_card *card, char __user *udata)
2596 {
2597         struct qeth_arp_query_info qinfo = {0, };
2598         int rc;
2599
2600         QETH_CARD_TEXT(card, 3, "arpquery");
2601
2602         if (!qeth_is_supported(card,/*IPA_QUERY_ARP_ADDR_INFO*/
2603                                IPA_ARP_PROCESSING)) {
2604                 QETH_CARD_TEXT(card, 3, "arpqnsup");
2605                 rc = -EOPNOTSUPP;
2606                 goto out;
2607         }
2608         /* get size of userspace buffer and mask_bits -> 6 bytes */
2609         if (copy_from_user(&qinfo, udata, 6)) {
2610                 rc = -EFAULT;
2611                 goto out;
2612         }
2613         qinfo.udata = kzalloc(qinfo.udata_len, GFP_KERNEL);
2614         if (!qinfo.udata) {
2615                 rc = -ENOMEM;
2616                 goto out;
2617         }
2618         qinfo.udata_offset = QETH_QARP_ENTRIES_OFFSET;
2619         rc = qeth_l3_query_arp_cache_info(card, QETH_PROT_IPV4, &qinfo);
2620         if (rc) {
2621                 if (copy_to_user(udata, qinfo.udata, 4))
2622                         rc = -EFAULT;
2623                         goto free_and_out;
2624         } else {
2625 #ifdef CONFIG_QETH_IPV6
2626                 if (qinfo.mask_bits & QETH_QARP_WITH_IPV6) {
2627                         /* fails in case of GuestLAN QDIO mode */
2628                         qeth_l3_query_arp_cache_info(card, QETH_PROT_IPV6,
2629                                 &qinfo);
2630                 }
2631 #endif
2632                 if (copy_to_user(udata, qinfo.udata, qinfo.udata_len)) {
2633                         QETH_CARD_TEXT(card, 4, "qactf");
2634                         rc = -EFAULT;
2635                         goto free_and_out;
2636                 }
2637                 QETH_CARD_TEXT_(card, 4, "qacts");
2638         }
2639 free_and_out:
2640         kfree(qinfo.udata);
2641 out:
2642         return rc;
2643 }
2644
2645 static int qeth_l3_arp_add_entry(struct qeth_card *card,
2646                                 struct qeth_arp_cache_entry *entry)
2647 {
2648         struct qeth_cmd_buffer *iob;
2649         char buf[16];
2650         int tmp;
2651         int rc;
2652
2653         QETH_CARD_TEXT(card, 3, "arpadent");
2654
2655         /*
2656          * currently GuestLAN only supports the ARP assist function
2657          * IPA_CMD_ASS_ARP_QUERY_INFO, but not IPA_CMD_ASS_ARP_ADD_ENTRY;
2658          * thus we say EOPNOTSUPP for this ARP function
2659          */
2660         if (card->info.guestlan)
2661                 return -EOPNOTSUPP;
2662         if (!qeth_is_supported(card, IPA_ARP_PROCESSING)) {
2663                 return -EOPNOTSUPP;
2664         }
2665
2666         iob = qeth_l3_get_setassparms_cmd(card, IPA_ARP_PROCESSING,
2667                                        IPA_CMD_ASS_ARP_ADD_ENTRY,
2668                                        sizeof(struct qeth_arp_cache_entry),
2669                                        QETH_PROT_IPV4);
2670         rc = qeth_l3_send_setassparms(card, iob,
2671                                    sizeof(struct qeth_arp_cache_entry),
2672                                    (unsigned long) entry,
2673                                    qeth_l3_default_setassparms_cb, NULL);
2674         if (rc) {
2675                 tmp = rc;
2676                 qeth_l3_ipaddr4_to_string((u8 *)entry->ipaddr, buf);
2677                 QETH_DBF_MESSAGE(2, "Could not add ARP entry for address %s "
2678                         "on %s: %s (0x%x/%d)\n", buf, QETH_CARD_IFNAME(card),
2679                         qeth_l3_arp_get_error_cause(&rc), tmp, tmp);
2680         }
2681         return rc;
2682 }
2683
2684 static int qeth_l3_arp_remove_entry(struct qeth_card *card,
2685                                 struct qeth_arp_cache_entry *entry)
2686 {
2687         struct qeth_cmd_buffer *iob;
2688         char buf[16] = {0, };
2689         int tmp;
2690         int rc;
2691
2692         QETH_CARD_TEXT(card, 3, "arprment");
2693
2694         /*
2695          * currently GuestLAN only supports the ARP assist function
2696          * IPA_CMD_ASS_ARP_QUERY_INFO, but not IPA_CMD_ASS_ARP_REMOVE_ENTRY;
2697          * thus we say EOPNOTSUPP for this ARP function
2698          */
2699         if (card->info.guestlan)
2700                 return -EOPNOTSUPP;
2701         if (!qeth_is_supported(card, IPA_ARP_PROCESSING)) {
2702                 return -EOPNOTSUPP;
2703         }
2704         memcpy(buf, entry, 12);
2705         iob = qeth_l3_get_setassparms_cmd(card, IPA_ARP_PROCESSING,
2706                                        IPA_CMD_ASS_ARP_REMOVE_ENTRY,
2707                                        12,
2708                                        QETH_PROT_IPV4);
2709         rc = qeth_l3_send_setassparms(card, iob,
2710                                    12, (unsigned long)buf,
2711                                    qeth_l3_default_setassparms_cb, NULL);
2712         if (rc) {
2713                 tmp = rc;
2714                 memset(buf, 0, 16);
2715                 qeth_l3_ipaddr4_to_string((u8 *)entry->ipaddr, buf);
2716                 QETH_DBF_MESSAGE(2, "Could not delete ARP entry for address %s"
2717                         " on %s: %s (0x%x/%d)\n", buf, QETH_CARD_IFNAME(card),
2718                         qeth_l3_arp_get_error_cause(&rc), tmp, tmp);
2719         }
2720         return rc;
2721 }
2722
2723 static int qeth_l3_arp_flush_cache(struct qeth_card *card)
2724 {
2725         int rc;
2726         int tmp;
2727
2728         QETH_CARD_TEXT(card, 3, "arpflush");
2729
2730         /*
2731          * currently GuestLAN only supports the ARP assist function
2732          * IPA_CMD_ASS_ARP_QUERY_INFO, but not IPA_CMD_ASS_ARP_FLUSH_CACHE;
2733          * thus we say EOPNOTSUPP for this ARP function
2734         */
2735         if (card->info.guestlan || (card->info.type == QETH_CARD_TYPE_IQD))
2736                 return -EOPNOTSUPP;
2737         if (!qeth_is_supported(card, IPA_ARP_PROCESSING)) {
2738                 return -EOPNOTSUPP;
2739         }
2740         rc = qeth_l3_send_simple_setassparms(card, IPA_ARP_PROCESSING,
2741                                           IPA_CMD_ASS_ARP_FLUSH_CACHE, 0);
2742         if (rc) {
2743                 tmp = rc;
2744                 QETH_DBF_MESSAGE(2, "Could not flush ARP cache on %s: %s "
2745                         "(0x%x/%d)\n", QETH_CARD_IFNAME(card),
2746                         qeth_l3_arp_get_error_cause(&rc), tmp, tmp);
2747         }
2748         return rc;
2749 }
2750
2751 static int qeth_l3_do_ioctl(struct net_device *dev, struct ifreq *rq, int cmd)
2752 {
2753         struct qeth_card *card = dev->ml_priv;
2754         struct qeth_arp_cache_entry arp_entry;
2755         struct mii_ioctl_data *mii_data;
2756         int rc = 0;
2757
2758         if (!card)
2759                 return -ENODEV;
2760
2761         if ((card->state != CARD_STATE_UP) &&
2762                 (card->state != CARD_STATE_SOFTSETUP))
2763                 return -ENODEV;
2764
2765         switch (cmd) {
2766         case SIOC_QETH_ARP_SET_NO_ENTRIES:
2767                 if (!capable(CAP_NET_ADMIN)) {
2768                         rc = -EPERM;
2769                         break;
2770                 }
2771                 rc = qeth_l3_arp_set_no_entries(card, rq->ifr_ifru.ifru_ivalue);
2772                 break;
2773         case SIOC_QETH_ARP_QUERY_INFO:
2774                 if (!capable(CAP_NET_ADMIN)) {
2775                         rc = -EPERM;
2776                         break;
2777                 }
2778                 rc = qeth_l3_arp_query(card, rq->ifr_ifru.ifru_data);
2779                 break;
2780         case SIOC_QETH_ARP_ADD_ENTRY:
2781                 if (!capable(CAP_NET_ADMIN)) {
2782                         rc = -EPERM;
2783                         break;
2784                 }
2785                 if (copy_from_user(&arp_entry, rq->ifr_ifru.ifru_data,
2786                                    sizeof(struct qeth_arp_cache_entry)))
2787                         rc = -EFAULT;
2788                 else
2789                         rc = qeth_l3_arp_add_entry(card, &arp_entry);
2790                 break;
2791         case SIOC_QETH_ARP_REMOVE_ENTRY:
2792                 if (!capable(CAP_NET_ADMIN)) {
2793                         rc = -EPERM;
2794                         break;
2795                 }
2796                 if (copy_from_user(&arp_entry, rq->ifr_ifru.ifru_data,
2797                                    sizeof(struct qeth_arp_cache_entry)))
2798                         rc = -EFAULT;
2799                 else
2800                         rc = qeth_l3_arp_remove_entry(card, &arp_entry);
2801                 break;
2802         case SIOC_QETH_ARP_FLUSH_CACHE:
2803                 if (!capable(CAP_NET_ADMIN)) {
2804                         rc = -EPERM;
2805                         break;
2806                 }
2807                 rc = qeth_l3_arp_flush_cache(card);
2808                 break;
2809         case SIOC_QETH_ADP_SET_SNMP_CONTROL:
2810                 rc = qeth_snmp_command(card, rq->ifr_ifru.ifru_data);
2811                 break;
2812         case SIOC_QETH_GET_CARD_TYPE:
2813                 if ((card->info.type == QETH_CARD_TYPE_OSD ||
2814                      card->info.type == QETH_CARD_TYPE_OSX) &&
2815                     !card->info.guestlan)
2816                         return 1;
2817                 return 0;
2818                 break;
2819         case SIOCGMIIPHY:
2820                 mii_data = if_mii(rq);
2821                 mii_data->phy_id = 0;
2822                 break;
2823         case SIOCGMIIREG:
2824                 mii_data = if_mii(rq);
2825                 if (mii_data->phy_id != 0)
2826                         rc = -EINVAL;
2827                 else
2828                         mii_data->val_out = qeth_mdio_read(dev,
2829                                                         mii_data->phy_id,
2830                                                         mii_data->reg_num);
2831                 break;
2832         default:
2833                 rc = -EOPNOTSUPP;
2834         }
2835         if (rc)
2836                 QETH_CARD_TEXT_(card, 2, "ioce%d", rc);
2837         return rc;
2838 }
2839
2840 int inline qeth_l3_get_cast_type(struct qeth_card *card, struct sk_buff *skb)
2841 {
2842         int cast_type = RTN_UNSPEC;
2843
2844         if (skb_dst(skb) && skb_dst(skb)->neighbour) {
2845                 cast_type = skb_dst(skb)->neighbour->type;
2846                 if ((cast_type == RTN_BROADCAST) ||
2847                     (cast_type == RTN_MULTICAST) ||
2848                     (cast_type == RTN_ANYCAST))
2849                         return cast_type;
2850                 else
2851                         return RTN_UNSPEC;
2852         }
2853         /* try something else */
2854         if (skb->protocol == ETH_P_IPV6)
2855                 return (skb_network_header(skb)[24] == 0xff) ?
2856                                 RTN_MULTICAST : 0;
2857         else if (skb->protocol == ETH_P_IP)
2858                 return ((skb_network_header(skb)[16] & 0xf0) == 0xe0) ?
2859                                 RTN_MULTICAST : 0;
2860         /* ... */
2861         if (!memcmp(skb->data, skb->dev->broadcast, 6))
2862                 return RTN_BROADCAST;
2863         else {
2864                 u16 hdr_mac;
2865
2866                 hdr_mac = *((u16 *)skb->data);
2867                 /* tr multicast? */
2868                 switch (card->info.link_type) {
2869                 case QETH_LINK_TYPE_HSTR:
2870                 case QETH_LINK_TYPE_LANE_TR:
2871                         if ((hdr_mac == QETH_TR_MAC_NC) ||
2872                             (hdr_mac == QETH_TR_MAC_C))
2873                                 return RTN_MULTICAST;
2874                         break;
2875                 /* eth or so multicast? */
2876                 default:
2877                 if ((hdr_mac == QETH_ETH_MAC_V4) ||
2878                             (hdr_mac == QETH_ETH_MAC_V6))
2879                                 return RTN_MULTICAST;
2880                 }
2881         }
2882         return cast_type;
2883 }
2884
2885 static void qeth_l3_fill_header(struct qeth_card *card, struct qeth_hdr *hdr,
2886                 struct sk_buff *skb, int ipv, int cast_type)
2887 {
2888         memset(hdr, 0, sizeof(struct qeth_hdr));
2889         hdr->hdr.l3.id = QETH_HEADER_TYPE_LAYER3;
2890         hdr->hdr.l3.ext_flags = 0;
2891
2892         /*
2893          * before we're going to overwrite this location with next hop ip.
2894          * v6 uses passthrough, v4 sets the tag in the QDIO header.
2895          */
2896         if (card->vlangrp && vlan_tx_tag_present(skb)) {
2897                 if ((ipv == 4) || (card->info.type == QETH_CARD_TYPE_IQD))
2898                         hdr->hdr.l3.ext_flags = QETH_HDR_EXT_VLAN_FRAME;
2899                 else
2900                         hdr->hdr.l3.ext_flags = QETH_HDR_EXT_INCLUDE_VLAN_TAG;
2901                 hdr->hdr.l3.vlan_id = vlan_tx_tag_get(skb);
2902         }
2903
2904         hdr->hdr.l3.length = skb->len - sizeof(struct qeth_hdr);
2905         if (ipv == 4) {
2906                 /* IPv4 */
2907                 hdr->hdr.l3.flags = qeth_l3_get_qeth_hdr_flags4(cast_type);
2908                 memset(hdr->hdr.l3.dest_addr, 0, 12);
2909                 if ((skb_dst(skb)) && (skb_dst(skb)->neighbour)) {
2910                         *((u32 *) (&hdr->hdr.l3.dest_addr[12])) =
2911                             *((u32 *) skb_dst(skb)->neighbour->primary_key);
2912                 } else {
2913                         /* fill in destination address used in ip header */
2914                         *((u32 *) (&hdr->hdr.l3.dest_addr[12])) =
2915                                                         ip_hdr(skb)->daddr;
2916                 }
2917         } else if (ipv == 6) {
2918                 /* IPv6 */
2919                 hdr->hdr.l3.flags = qeth_l3_get_qeth_hdr_flags6(cast_type);
2920                 if (card->info.type == QETH_CARD_TYPE_IQD)
2921                         hdr->hdr.l3.flags &= ~QETH_HDR_PASSTHRU;
2922                 if ((skb_dst(skb)) && (skb_dst(skb)->neighbour)) {
2923                         memcpy(hdr->hdr.l3.dest_addr,
2924                                skb_dst(skb)->neighbour->primary_key, 16);
2925                 } else {
2926                         /* fill in destination address used in ip header */
2927                         memcpy(hdr->hdr.l3.dest_addr,
2928                                &ipv6_hdr(skb)->daddr, 16);
2929                 }
2930         } else {
2931                 /* passthrough */
2932                 if ((skb->dev->type == ARPHRD_IEEE802_TR) &&
2933                         !memcmp(skb->data + sizeof(struct qeth_hdr) +
2934                         sizeof(__u16), skb->dev->broadcast, 6)) {
2935                         hdr->hdr.l3.flags = QETH_CAST_BROADCAST |
2936                                                 QETH_HDR_PASSTHRU;
2937                 } else if (!memcmp(skb->data + sizeof(struct qeth_hdr),
2938                             skb->dev->broadcast, 6)) {
2939                         /* broadcast? */
2940                         hdr->hdr.l3.flags = QETH_CAST_BROADCAST |
2941                                                 QETH_HDR_PASSTHRU;
2942                 } else {
2943                         hdr->hdr.l3.flags = (cast_type == RTN_MULTICAST) ?
2944                                 QETH_CAST_MULTICAST | QETH_HDR_PASSTHRU :
2945                                 QETH_CAST_UNICAST | QETH_HDR_PASSTHRU;
2946                 }
2947         }
2948 }
2949
2950 static inline void qeth_l3_hdr_csum(struct qeth_card *card,
2951                 struct qeth_hdr *hdr, struct sk_buff *skb)
2952 {
2953         struct iphdr *iph = ip_hdr(skb);
2954
2955         /* tcph->check contains already the pseudo hdr checksum
2956          * so just set the header flags
2957          */
2958         if (iph->protocol == IPPROTO_UDP)
2959                 hdr->hdr.l3.ext_flags |= QETH_HDR_EXT_UDP;
2960         hdr->hdr.l3.ext_flags |= QETH_HDR_EXT_CSUM_TRANSP_REQ |
2961                 QETH_HDR_EXT_CSUM_HDR_REQ;
2962         iph->check = 0;
2963         if (card->options.performance_stats)
2964                 card->perf_stats.tx_csum++;
2965 }
2966
2967 static void qeth_tso_fill_header(struct qeth_card *card,
2968                 struct qeth_hdr *qhdr, struct sk_buff *skb)
2969 {
2970         struct qeth_hdr_tso *hdr = (struct qeth_hdr_tso *)qhdr;
2971         struct tcphdr *tcph = tcp_hdr(skb);
2972         struct iphdr *iph = ip_hdr(skb);
2973         struct ipv6hdr *ip6h = ipv6_hdr(skb);
2974
2975         /*fix header to TSO values ...*/
2976         hdr->hdr.hdr.l3.id = QETH_HEADER_TYPE_TSO;
2977         hdr->hdr.hdr.l3.length = skb->len - sizeof(struct qeth_hdr_tso);
2978         /*set values which are fix for the first approach ...*/
2979         hdr->ext.hdr_tot_len = (__u16) sizeof(struct qeth_hdr_ext_tso);
2980         hdr->ext.imb_hdr_no  = 1;
2981         hdr->ext.hdr_type    = 1;
2982         hdr->ext.hdr_version = 1;
2983         hdr->ext.hdr_len     = 28;
2984         /*insert non-fix values */
2985         hdr->ext.mss = skb_shinfo(skb)->gso_size;
2986         hdr->ext.dg_hdr_len = (__u16)(iph->ihl*4 + tcph->doff*4);
2987         hdr->ext.payload_len = (__u16)(skb->len - hdr->ext.dg_hdr_len -
2988                                        sizeof(struct qeth_hdr_tso));
2989         tcph->check = 0;
2990         if (skb->protocol == ETH_P_IPV6) {
2991                 ip6h->payload_len = 0;
2992                 tcph->check = ~csum_ipv6_magic(&ip6h->saddr, &ip6h->daddr,
2993                                                0, IPPROTO_TCP, 0);
2994         } else {
2995                 /*OSA want us to set these values ...*/
2996                 tcph->check = ~csum_tcpudp_magic(iph->saddr, iph->daddr,
2997                                          0, IPPROTO_TCP, 0);
2998                 iph->tot_len = 0;
2999                 iph->check = 0;
3000         }
3001 }
3002
3003 static inline int qeth_l3_tso_elements(struct sk_buff *skb)
3004 {
3005         unsigned long tcpd = (unsigned long)tcp_hdr(skb) +
3006                 tcp_hdr(skb)->doff * 4;
3007         int tcpd_len = skb->len - (tcpd - (unsigned long)skb->data);
3008         int elements = PFN_UP(tcpd + tcpd_len - 1) - PFN_DOWN(tcpd);
3009         elements += skb_shinfo(skb)->nr_frags;
3010         return elements;
3011 }
3012
3013 static int qeth_l3_hard_start_xmit(struct sk_buff *skb, struct net_device *dev)
3014 {
3015         int rc;
3016         u16 *tag;
3017         struct qeth_hdr *hdr = NULL;
3018         int elements_needed = 0;
3019         int elems;
3020         struct qeth_card *card = dev->ml_priv;
3021         struct sk_buff *new_skb = NULL;
3022         int ipv = qeth_get_ip_version(skb);
3023         int cast_type = qeth_l3_get_cast_type(card, skb);
3024         struct qeth_qdio_out_q *queue = card->qdio.out_qs
3025                 [qeth_get_priority_queue(card, skb, ipv, cast_type)];
3026         int tx_bytes = skb->len;
3027         enum qeth_large_send_types large_send = QETH_LARGE_SEND_NO;
3028         int data_offset = -1;
3029         int nr_frags;
3030
3031         if (((card->info.type == QETH_CARD_TYPE_IQD) && (!ipv)) ||
3032              card->options.sniffer)
3033                         goto tx_drop;
3034
3035         if ((card->state != CARD_STATE_UP) || !card->lan_online) {
3036                 card->stats.tx_carrier_errors++;
3037                 goto tx_drop;
3038         }
3039
3040         if ((cast_type == RTN_BROADCAST) &&
3041             (card->info.broadcast_capable == 0))
3042                 goto tx_drop;
3043
3044         if (card->options.performance_stats) {
3045                 card->perf_stats.outbound_cnt++;
3046                 card->perf_stats.outbound_start_time = qeth_get_micros();
3047         }
3048
3049         if (skb_is_gso(skb))
3050                 large_send = card->options.large_send;
3051
3052         if ((card->info.type == QETH_CARD_TYPE_IQD) && (!large_send) &&
3053             (skb_shinfo(skb)->nr_frags == 0)) {
3054                 new_skb = skb;
3055                 data_offset = ETH_HLEN;
3056                 hdr = kmem_cache_alloc(qeth_core_header_cache, GFP_ATOMIC);
3057                 if (!hdr)
3058                         goto tx_drop;
3059                 elements_needed++;
3060         } else {
3061                 /* create a clone with writeable headroom */
3062                 new_skb = skb_realloc_headroom(skb, sizeof(struct qeth_hdr_tso)
3063                                         + VLAN_HLEN);
3064                 if (!new_skb)
3065                         goto tx_drop;
3066         }
3067
3068         if (card->info.type == QETH_CARD_TYPE_IQD) {
3069                 if (data_offset < 0)
3070                         skb_pull(new_skb, ETH_HLEN);
3071         } else {
3072                 if (ipv == 4) {
3073                         if (card->dev->type == ARPHRD_IEEE802_TR)
3074                                 skb_pull(new_skb, TR_HLEN);
3075                         else
3076                                 skb_pull(new_skb, ETH_HLEN);
3077                 }
3078
3079                 if (ipv != 4 && card->vlangrp &&
3080                                 vlan_tx_tag_present(new_skb)) {
3081                         skb_push(new_skb, VLAN_HLEN);
3082                         skb_copy_to_linear_data(new_skb, new_skb->data + 4, 4);
3083                         skb_copy_to_linear_data_offset(new_skb, 4,
3084                                 new_skb->data + 8, 4);
3085                         skb_copy_to_linear_data_offset(new_skb, 8,
3086                                 new_skb->data + 12, 4);
3087                         tag = (u16 *)(new_skb->data + 12);
3088                         *tag = __constant_htons(ETH_P_8021Q);
3089                         *(tag + 1) = htons(vlan_tx_tag_get(new_skb));
3090                         new_skb->vlan_tci = 0;
3091                 }
3092         }
3093
3094         netif_stop_queue(dev);
3095
3096         /* fix hardware limitation: as long as we do not have sbal
3097          * chaining we can not send long frag lists
3098          */
3099         if (large_send == QETH_LARGE_SEND_TSO) {
3100                 if (qeth_l3_tso_elements(new_skb) + 1 > 16) {
3101                         if (skb_linearize(new_skb))
3102                                 goto tx_drop;
3103                         if (card->options.performance_stats)
3104                                 card->perf_stats.tx_lin++;
3105                 }
3106         }
3107
3108         if ((large_send == QETH_LARGE_SEND_TSO) &&
3109             (cast_type == RTN_UNSPEC)) {
3110                 hdr = (struct qeth_hdr *)skb_push(new_skb,
3111                                                 sizeof(struct qeth_hdr_tso));
3112                 memset(hdr, 0, sizeof(struct qeth_hdr_tso));
3113                 qeth_l3_fill_header(card, hdr, new_skb, ipv, cast_type);
3114                 qeth_tso_fill_header(card, hdr, new_skb);
3115                 elements_needed++;
3116         } else {
3117                 if (data_offset < 0) {
3118                         hdr = (struct qeth_hdr *)skb_push(new_skb,
3119                                                 sizeof(struct qeth_hdr));
3120                         qeth_l3_fill_header(card, hdr, new_skb, ipv,
3121                                                 cast_type);
3122                 } else {
3123                         qeth_l3_fill_header(card, hdr, new_skb, ipv,
3124                                                 cast_type);
3125                         hdr->hdr.l3.length = new_skb->len - data_offset;
3126                 }
3127
3128                 if (skb->ip_summed == CHECKSUM_PARTIAL)
3129                         qeth_l3_hdr_csum(card, hdr, new_skb);
3130         }
3131
3132         elems = qeth_get_elements_no(card, (void *)hdr, new_skb,
3133                                                  elements_needed);
3134         if (!elems) {
3135                 if (data_offset >= 0)
3136                         kmem_cache_free(qeth_core_header_cache, hdr);
3137                 goto tx_drop;
3138         }
3139         elements_needed += elems;
3140         nr_frags = skb_shinfo(new_skb)->nr_frags;
3141
3142         if (card->info.type != QETH_CARD_TYPE_IQD) {
3143                 int len;
3144                 if (large_send == QETH_LARGE_SEND_TSO)
3145                         len = ((unsigned long)tcp_hdr(new_skb) +
3146                                 tcp_hdr(new_skb)->doff * 4) -
3147                                 (unsigned long)new_skb->data;
3148                 else
3149                         len = sizeof(struct qeth_hdr_layer3);
3150
3151                 if (qeth_hdr_chk_and_bounce(new_skb, len))
3152                         goto tx_drop;
3153                 rc = qeth_do_send_packet(card, queue, new_skb, hdr,
3154                                          elements_needed);
3155         } else
3156                 rc = qeth_do_send_packet_fast(card, queue, new_skb, hdr,
3157                                         elements_needed, data_offset, 0);
3158
3159         if (!rc) {
3160                 card->stats.tx_packets++;
3161                 card->stats.tx_bytes += tx_bytes;
3162                 if (new_skb != skb)
3163                         dev_kfree_skb_any(skb);
3164                 if (card->options.performance_stats) {
3165                         if (large_send != QETH_LARGE_SEND_NO) {
3166                                 card->perf_stats.large_send_bytes += tx_bytes;
3167                                 card->perf_stats.large_send_cnt++;
3168                         }
3169                         if (nr_frags) {
3170                                 card->perf_stats.sg_skbs_sent++;
3171                                 /* nr_frags + skb->data */
3172                                 card->perf_stats.sg_frags_sent += nr_frags + 1;
3173                         }
3174                 }
3175                 rc = NETDEV_TX_OK;
3176         } else {
3177                 if (data_offset >= 0)
3178                         kmem_cache_free(qeth_core_header_cache, hdr);
3179
3180                 if (rc == -EBUSY) {
3181                         if (new_skb != skb)
3182                                 dev_kfree_skb_any(new_skb);
3183                         return NETDEV_TX_BUSY;
3184                 } else
3185                         goto tx_drop;
3186         }
3187
3188         netif_wake_queue(dev);
3189         if (card->options.performance_stats)
3190                 card->perf_stats.outbound_time += qeth_get_micros() -
3191                         card->perf_stats.outbound_start_time;
3192         return rc;
3193
3194 tx_drop:
3195         card->stats.tx_dropped++;
3196         card->stats.tx_errors++;
3197         if ((new_skb != skb) && new_skb)
3198                 dev_kfree_skb_any(new_skb);
3199         dev_kfree_skb_any(skb);
3200         netif_wake_queue(dev);
3201         return NETDEV_TX_OK;
3202 }
3203
3204 static int __qeth_l3_open(struct net_device *dev)
3205 {
3206         struct qeth_card *card = dev->ml_priv;
3207         int rc = 0;
3208
3209         QETH_CARD_TEXT(card, 4, "qethopen");
3210         if (card->state == CARD_STATE_UP)
3211                 return rc;
3212         if (card->state != CARD_STATE_SOFTSETUP)
3213                 return -ENODEV;
3214         card->data.state = CH_STATE_UP;
3215         card->state = CARD_STATE_UP;
3216         netif_start_queue(dev);
3217
3218         if (qdio_stop_irq(card->data.ccwdev, 0) >= 0) {
3219                 napi_enable(&card->napi);
3220                 napi_schedule(&card->napi);
3221         } else
3222                 rc = -EIO;
3223         return rc;
3224 }
3225
3226 static int qeth_l3_open(struct net_device *dev)
3227 {
3228         struct qeth_card *card = dev->ml_priv;
3229
3230         QETH_CARD_TEXT(card, 5, "qethope_");
3231         if (qeth_wait_for_threads(card, QETH_RECOVER_THREAD)) {
3232                 QETH_CARD_TEXT(card, 3, "openREC");
3233                 return -ERESTARTSYS;
3234         }
3235         return __qeth_l3_open(dev);
3236 }
3237
3238 static int qeth_l3_stop(struct net_device *dev)
3239 {
3240         struct qeth_card *card = dev->ml_priv;
3241
3242         QETH_CARD_TEXT(card, 4, "qethstop");
3243         netif_tx_disable(dev);
3244         if (card->state == CARD_STATE_UP) {
3245                 card->state = CARD_STATE_SOFTSETUP;
3246                 napi_disable(&card->napi);
3247         }
3248         return 0;
3249 }
3250
3251 static u32 qeth_l3_ethtool_get_rx_csum(struct net_device *dev)
3252 {
3253         struct qeth_card *card = dev->ml_priv;
3254
3255         return (card->options.checksum_type == HW_CHECKSUMMING);
3256 }
3257
3258 static int qeth_l3_ethtool_set_rx_csum(struct net_device *dev, u32 data)
3259 {
3260         struct qeth_card *card = dev->ml_priv;
3261         enum qeth_checksum_types csum_type;
3262
3263         if (data)
3264                 csum_type = HW_CHECKSUMMING;
3265         else
3266                 csum_type = SW_CHECKSUMMING;
3267
3268         return qeth_l3_set_rx_csum(card, csum_type);
3269 }
3270
3271 static int qeth_l3_ethtool_set_tso(struct net_device *dev, u32 data)
3272 {
3273         struct qeth_card *card = dev->ml_priv;
3274         int rc = 0;
3275
3276         if (data) {
3277                 rc = qeth_l3_set_large_send(card, QETH_LARGE_SEND_TSO);
3278         } else {
3279                 dev->features &= ~NETIF_F_TSO;
3280                 card->options.large_send = QETH_LARGE_SEND_NO;
3281         }
3282         return rc;
3283 }
3284
3285 static int qeth_l3_ethtool_set_tx_csum(struct net_device *dev, u32 data)
3286 {
3287         struct qeth_card *card = dev->ml_priv;
3288
3289         if (data) {
3290                 if (qeth_is_supported(card, IPA_OUTBOUND_CHECKSUM))
3291                         dev->features |= NETIF_F_IP_CSUM;
3292                 else
3293                         return -EPERM;
3294         } else
3295                 dev->features &= ~NETIF_F_IP_CSUM;
3296
3297         return 0;
3298 }
3299
3300 static const struct ethtool_ops qeth_l3_ethtool_ops = {
3301         .get_link = ethtool_op_get_link,
3302         .get_tx_csum = ethtool_op_get_tx_csum,
3303         .set_tx_csum = qeth_l3_ethtool_set_tx_csum,
3304         .get_rx_csum = qeth_l3_ethtool_get_rx_csum,
3305         .set_rx_csum = qeth_l3_ethtool_set_rx_csum,
3306         .get_sg      = ethtool_op_get_sg,
3307         .set_sg      = ethtool_op_set_sg,
3308         .get_tso     = ethtool_op_get_tso,
3309         .set_tso     = qeth_l3_ethtool_set_tso,
3310         .get_strings = qeth_core_get_strings,
3311         .get_ethtool_stats = qeth_core_get_ethtool_stats,
3312         .get_sset_count = qeth_core_get_sset_count,
3313         .get_drvinfo = qeth_core_get_drvinfo,
3314         .get_settings = qeth_core_ethtool_get_settings,
3315 };
3316
3317 /*
3318  * we need NOARP for IPv4 but we want neighbor solicitation for IPv6. Setting
3319  * NOARP on the netdevice is no option because it also turns off neighbor
3320  * solicitation. For IPv4 we install a neighbor_setup function. We don't want
3321  * arp resolution but we want the hard header (packet socket will work
3322  * e.g. tcpdump)
3323  */
3324 static int qeth_l3_neigh_setup_noarp(struct neighbour *n)
3325 {
3326         n->nud_state = NUD_NOARP;
3327         memcpy(n->ha, "FAKELL", 6);
3328         n->output = n->ops->connected_output;
3329         return 0;
3330 }
3331
3332 static int
3333 qeth_l3_neigh_setup(struct net_device *dev, struct neigh_parms *np)
3334 {
3335         if (np->tbl->family == AF_INET)
3336                 np->neigh_setup = qeth_l3_neigh_setup_noarp;
3337
3338         return 0;
3339 }
3340
3341 static const struct net_device_ops qeth_l3_netdev_ops = {
3342         .ndo_open               = qeth_l3_open,
3343         .ndo_stop               = qeth_l3_stop,
3344         .ndo_get_stats          = qeth_get_stats,
3345         .ndo_start_xmit         = qeth_l3_hard_start_xmit,
3346         .ndo_validate_addr      = eth_validate_addr,
3347         .ndo_set_multicast_list = qeth_l3_set_multicast_list,
3348         .ndo_do_ioctl           = qeth_l3_do_ioctl,
3349         .ndo_change_mtu         = qeth_change_mtu,
3350         .ndo_vlan_rx_register   = qeth_l3_vlan_rx_register,
3351         .ndo_vlan_rx_add_vid    = qeth_l3_vlan_rx_add_vid,
3352         .ndo_vlan_rx_kill_vid   = qeth_l3_vlan_rx_kill_vid,
3353         .ndo_tx_timeout         = qeth_tx_timeout,
3354 };
3355
3356 static const struct net_device_ops qeth_l3_osa_netdev_ops = {
3357         .ndo_open               = qeth_l3_open,
3358         .ndo_stop               = qeth_l3_stop,
3359         .ndo_get_stats          = qeth_get_stats,
3360         .ndo_start_xmit         = qeth_l3_hard_start_xmit,
3361         .ndo_validate_addr      = eth_validate_addr,
3362         .ndo_set_multicast_list = qeth_l3_set_multicast_list,
3363         .ndo_do_ioctl           = qeth_l3_do_ioctl,
3364         .ndo_change_mtu         = qeth_change_mtu,
3365         .ndo_vlan_rx_register   = qeth_l3_vlan_rx_register,
3366         .ndo_vlan_rx_add_vid    = qeth_l3_vlan_rx_add_vid,
3367         .ndo_vlan_rx_kill_vid   = qeth_l3_vlan_rx_kill_vid,
3368         .ndo_tx_timeout         = qeth_tx_timeout,
3369         .ndo_neigh_setup        = qeth_l3_neigh_setup,
3370 };
3371
3372 static int qeth_l3_setup_netdev(struct qeth_card *card)
3373 {
3374         if (card->info.type == QETH_CARD_TYPE_OSD ||
3375             card->info.type == QETH_CARD_TYPE_OSX) {
3376                 if ((card->info.link_type == QETH_LINK_TYPE_LANE_TR) ||
3377                     (card->info.link_type == QETH_LINK_TYPE_HSTR)) {
3378 #ifdef CONFIG_TR
3379                         card->dev = alloc_trdev(0);
3380 #endif
3381                         if (!card->dev)
3382                                 return -ENODEV;
3383                         card->dev->netdev_ops = &qeth_l3_netdev_ops;
3384                 } else {
3385                         card->dev = alloc_etherdev(0);
3386                         if (!card->dev)
3387                                 return -ENODEV;
3388                         card->dev->netdev_ops = &qeth_l3_osa_netdev_ops;
3389
3390                         /*IPv6 address autoconfiguration stuff*/
3391                         qeth_l3_get_unique_id(card);
3392                         if (!(card->info.unique_id & UNIQUE_ID_NOT_BY_CARD))
3393                                 card->dev->dev_id = card->info.unique_id &
3394                                                          0xffff;
3395                         if (!card->info.guestlan)
3396                                 card->dev->features |= NETIF_F_GRO;
3397                 }
3398         } else if (card->info.type == QETH_CARD_TYPE_IQD) {
3399                 card->dev = alloc_netdev(0, "hsi%d", ether_setup);
3400                 if (!card->dev)
3401                         return -ENODEV;
3402                 card->dev->flags |= IFF_NOARP;
3403                 card->dev->netdev_ops = &qeth_l3_netdev_ops;
3404                 qeth_l3_iqd_read_initial_mac(card);
3405         } else
3406                 return -ENODEV;
3407
3408         card->dev->ml_priv = card;
3409         card->dev->watchdog_timeo = QETH_TX_TIMEOUT;
3410         card->dev->mtu = card->info.initial_mtu;
3411         SET_ETHTOOL_OPS(card->dev, &qeth_l3_ethtool_ops);
3412         card->dev->features |=  NETIF_F_HW_VLAN_TX |
3413                                 NETIF_F_HW_VLAN_RX |
3414                                 NETIF_F_HW_VLAN_FILTER;
3415         card->dev->priv_flags &= ~IFF_XMIT_DST_RELEASE;
3416         card->dev->gso_max_size = 15 * PAGE_SIZE;
3417
3418         SET_NETDEV_DEV(card->dev, &card->gdev->dev);
3419         netif_napi_add(card->dev, &card->napi, qeth_l3_poll, QETH_NAPI_WEIGHT);
3420         return register_netdev(card->dev);
3421 }
3422
3423 static int qeth_l3_probe_device(struct ccwgroup_device *gdev)
3424 {
3425         struct qeth_card *card = dev_get_drvdata(&gdev->dev);
3426
3427         qeth_l3_create_device_attributes(&gdev->dev);
3428         card->options.layer2 = 0;
3429         card->discipline.start_poll = qeth_qdio_start_poll;
3430         card->discipline.input_handler = (qdio_handler_t *)
3431                 qeth_qdio_input_handler;
3432         card->discipline.output_handler = (qdio_handler_t *)
3433                 qeth_qdio_output_handler;
3434         card->discipline.recover = qeth_l3_recover;
3435         if ((card->info.type == QETH_CARD_TYPE_OSD) ||
3436             (card->info.type == QETH_CARD_TYPE_OSX))
3437                 card->options.checksum_type = HW_CHECKSUMMING;
3438         return 0;
3439 }
3440
3441 static void qeth_l3_remove_device(struct ccwgroup_device *cgdev)
3442 {
3443         struct qeth_card *card = dev_get_drvdata(&cgdev->dev);
3444
3445         qeth_l3_remove_device_attributes(&cgdev->dev);
3446
3447         qeth_set_allowed_threads(card, 0, 1);
3448         wait_event(card->wait_q, qeth_threads_running(card, 0xffffffff) == 0);
3449
3450         if (cgdev->state == CCWGROUP_ONLINE)
3451                 qeth_l3_set_offline(cgdev);
3452
3453         if (card->dev) {
3454                 unregister_netdev(card->dev);
3455                 card->dev = NULL;
3456         }
3457
3458         qeth_l3_clear_ip_list(card, 0);
3459         qeth_l3_clear_ipato_list(card);
3460         return;
3461 }
3462
3463 static int __qeth_l3_set_online(struct ccwgroup_device *gdev, int recovery_mode)
3464 {
3465         struct qeth_card *card = dev_get_drvdata(&gdev->dev);
3466         int rc = 0;
3467         enum qeth_card_states recover_flag;
3468
3469         BUG_ON(!card);
3470         mutex_lock(&card->discipline_mutex);
3471         mutex_lock(&card->conf_mutex);
3472         QETH_DBF_TEXT(SETUP, 2, "setonlin");
3473         QETH_DBF_HEX(SETUP, 2, &card, sizeof(void *));
3474
3475         recover_flag = card->state;
3476         rc = qeth_core_hardsetup_card(card);
3477         if (rc) {
3478                 QETH_DBF_TEXT_(SETUP, 2, "2err%d", rc);
3479                 rc = -ENODEV;
3480                 goto out_remove;
3481         }
3482
3483         qeth_l3_query_ipassists(card, QETH_PROT_IPV4);
3484
3485         if (!card->dev && qeth_l3_setup_netdev(card)) {
3486                 rc = -ENODEV;
3487                 goto out_remove;
3488         }
3489
3490         card->state = CARD_STATE_HARDSETUP;
3491         memset(&card->rx, 0, sizeof(struct qeth_rx));
3492         qeth_print_status_message(card);
3493
3494         /* softsetup */
3495         QETH_DBF_TEXT(SETUP, 2, "softsetp");
3496
3497         rc = qeth_send_startlan(card);
3498         if (rc) {
3499                 QETH_DBF_TEXT_(SETUP, 2, "1err%d", rc);
3500                 if (rc == 0xe080) {
3501                         dev_warn(&card->gdev->dev,
3502                                 "The LAN is offline\n");
3503                         card->lan_online = 0;
3504                         goto contin;
3505                 }
3506                 rc = -ENODEV;
3507                 goto out_remove;
3508         } else
3509                 card->lan_online = 1;
3510
3511 contin:
3512         rc = qeth_l3_setadapter_parms(card);
3513         if (rc)
3514                 QETH_DBF_TEXT_(SETUP, 2, "2err%d", rc);
3515         if (!card->options.sniffer) {
3516                 rc = qeth_l3_start_ipassists(card);
3517                 if (rc)
3518                         QETH_DBF_TEXT_(SETUP, 2, "3err%d", rc);
3519                 qeth_l3_set_large_send(card, card->options.large_send);
3520                 rc = qeth_l3_setrouting_v4(card);
3521                 if (rc)
3522                         QETH_DBF_TEXT_(SETUP, 2, "4err%d", rc);
3523                 rc = qeth_l3_setrouting_v6(card);
3524                 if (rc)
3525                         QETH_DBF_TEXT_(SETUP, 2, "5err%d", rc);
3526         }
3527         netif_tx_disable(card->dev);
3528
3529         rc = qeth_init_qdio_queues(card);
3530         if (rc) {
3531                 QETH_DBF_TEXT_(SETUP, 2, "6err%d", rc);
3532                 rc = -ENODEV;
3533                 goto out_remove;
3534         }
3535         card->state = CARD_STATE_SOFTSETUP;
3536
3537         qeth_set_allowed_threads(card, 0xffffffff, 0);
3538         qeth_l3_set_ip_addr_list(card);
3539         if (card->lan_online)
3540                 netif_carrier_on(card->dev);
3541         else
3542                 netif_carrier_off(card->dev);
3543         if (recover_flag == CARD_STATE_RECOVER) {
3544                 if (recovery_mode)
3545                         __qeth_l3_open(card->dev);
3546                 else {
3547                         rtnl_lock();
3548                         dev_open(card->dev);
3549                         rtnl_unlock();
3550                 }
3551                 qeth_l3_set_multicast_list(card->dev);
3552         }
3553         /* let user_space know that device is online */
3554         kobject_uevent(&gdev->dev.kobj, KOBJ_CHANGE);
3555         mutex_unlock(&card->conf_mutex);
3556         mutex_unlock(&card->discipline_mutex);
3557         return 0;
3558 out_remove:
3559         qeth_l3_stop_card(card, 0);
3560         ccw_device_set_offline(CARD_DDEV(card));
3561         ccw_device_set_offline(CARD_WDEV(card));
3562         ccw_device_set_offline(CARD_RDEV(card));
3563         if (recover_flag == CARD_STATE_RECOVER)
3564                 card->state = CARD_STATE_RECOVER;
3565         else
3566                 card->state = CARD_STATE_DOWN;
3567         mutex_unlock(&card->conf_mutex);
3568         mutex_unlock(&card->discipline_mutex);
3569         return rc;
3570 }
3571
3572 static int qeth_l3_set_online(struct ccwgroup_device *gdev)
3573 {
3574         return __qeth_l3_set_online(gdev, 0);
3575 }
3576
3577 static int __qeth_l3_set_offline(struct ccwgroup_device *cgdev,
3578                         int recovery_mode)
3579 {
3580         struct qeth_card *card = dev_get_drvdata(&cgdev->dev);
3581         int rc = 0, rc2 = 0, rc3 = 0;
3582         enum qeth_card_states recover_flag;
3583
3584         mutex_lock(&card->discipline_mutex);
3585         mutex_lock(&card->conf_mutex);
3586         QETH_DBF_TEXT(SETUP, 3, "setoffl");
3587         QETH_DBF_HEX(SETUP, 3, &card, sizeof(void *));
3588
3589         if (card->dev && netif_carrier_ok(card->dev))
3590                 netif_carrier_off(card->dev);
3591         recover_flag = card->state;
3592         qeth_l3_stop_card(card, recovery_mode);
3593         rc  = ccw_device_set_offline(CARD_DDEV(card));
3594         rc2 = ccw_device_set_offline(CARD_WDEV(card));
3595         rc3 = ccw_device_set_offline(CARD_RDEV(card));
3596         if (!rc)
3597                 rc = (rc2) ? rc2 : rc3;
3598         if (rc)
3599                 QETH_DBF_TEXT_(SETUP, 2, "1err%d", rc);
3600         if (recover_flag == CARD_STATE_UP)
3601                 card->state = CARD_STATE_RECOVER;
3602         /* let user_space know that device is offline */
3603         kobject_uevent(&cgdev->dev.kobj, KOBJ_CHANGE);
3604         mutex_unlock(&card->conf_mutex);
3605         mutex_unlock(&card->discipline_mutex);
3606         return 0;
3607 }
3608
3609 static int qeth_l3_set_offline(struct ccwgroup_device *cgdev)
3610 {
3611         return __qeth_l3_set_offline(cgdev, 0);
3612 }
3613
3614 static int qeth_l3_recover(void *ptr)
3615 {
3616         struct qeth_card *card;
3617         int rc = 0;
3618
3619         card = (struct qeth_card *) ptr;
3620         QETH_CARD_TEXT(card, 2, "recover1");
3621         QETH_CARD_HEX(card, 2, &card, sizeof(void *));
3622         if (!qeth_do_run_thread(card, QETH_RECOVER_THREAD))
3623                 return 0;
3624         QETH_CARD_TEXT(card, 2, "recover2");
3625         dev_warn(&card->gdev->dev,
3626                 "A recovery process has been started for the device\n");
3627         __qeth_l3_set_offline(card->gdev, 1);
3628         rc = __qeth_l3_set_online(card->gdev, 1);
3629         if (!rc)
3630                 dev_info(&card->gdev->dev,
3631                         "Device successfully recovered!\n");
3632         else {
3633                 rtnl_lock();
3634                 dev_close(card->dev);
3635                 rtnl_unlock();
3636                 dev_warn(&card->gdev->dev, "The qeth device driver "
3637                         "failed to recover an error on the device\n");
3638         }
3639         qeth_clear_thread_start_bit(card, QETH_RECOVER_THREAD);
3640         qeth_clear_thread_running_bit(card, QETH_RECOVER_THREAD);
3641         return 0;
3642 }
3643
3644 static void qeth_l3_shutdown(struct ccwgroup_device *gdev)
3645 {
3646         struct qeth_card *card = dev_get_drvdata(&gdev->dev);
3647         qeth_qdio_clear_card(card, 0);
3648         qeth_clear_qdio_buffers(card);
3649 }
3650
3651 static int qeth_l3_pm_suspend(struct ccwgroup_device *gdev)
3652 {
3653         struct qeth_card *card = dev_get_drvdata(&gdev->dev);
3654
3655         if (card->dev)
3656                 netif_device_detach(card->dev);
3657         qeth_set_allowed_threads(card, 0, 1);
3658         wait_event(card->wait_q, qeth_threads_running(card, 0xffffffff) == 0);
3659         if (gdev->state == CCWGROUP_OFFLINE)
3660                 return 0;
3661         if (card->state == CARD_STATE_UP) {
3662                 __qeth_l3_set_offline(card->gdev, 1);
3663         } else
3664                 __qeth_l3_set_offline(card->gdev, 0);
3665         return 0;
3666 }
3667
3668 static int qeth_l3_pm_resume(struct ccwgroup_device *gdev)
3669 {
3670         struct qeth_card *card = dev_get_drvdata(&gdev->dev);
3671         int rc = 0;
3672
3673         if (gdev->state == CCWGROUP_OFFLINE)
3674                 goto out;
3675
3676         if (card->state == CARD_STATE_RECOVER) {
3677                 rc = __qeth_l3_set_online(card->gdev, 1);
3678                 if (rc) {
3679                         rtnl_lock();
3680                         dev_close(card->dev);
3681                         rtnl_unlock();
3682                 }
3683         } else
3684                 rc = __qeth_l3_set_online(card->gdev, 0);
3685 out:
3686         qeth_set_allowed_threads(card, 0xffffffff, 0);
3687         if (card->dev)
3688                 netif_device_attach(card->dev);
3689         if (rc)
3690                 dev_warn(&card->gdev->dev, "The qeth device driver "
3691                         "failed to recover an error on the device\n");
3692         return rc;
3693 }
3694
3695 struct ccwgroup_driver qeth_l3_ccwgroup_driver = {
3696         .probe = qeth_l3_probe_device,
3697         .remove = qeth_l3_remove_device,
3698         .set_online = qeth_l3_set_online,
3699         .set_offline = qeth_l3_set_offline,
3700         .shutdown = qeth_l3_shutdown,
3701         .freeze = qeth_l3_pm_suspend,
3702         .thaw = qeth_l3_pm_resume,
3703         .restore = qeth_l3_pm_resume,
3704 };
3705 EXPORT_SYMBOL_GPL(qeth_l3_ccwgroup_driver);
3706
3707 static int qeth_l3_ip_event(struct notifier_block *this,
3708                             unsigned long event, void *ptr)
3709 {
3710         struct in_ifaddr *ifa = (struct in_ifaddr *)ptr;
3711         struct net_device *dev = (struct net_device *)ifa->ifa_dev->dev;
3712         struct qeth_ipaddr *addr;
3713         struct qeth_card *card;
3714
3715         if (dev_net(dev) != &init_net)
3716                 return NOTIFY_DONE;
3717
3718         card = qeth_l3_get_card_from_dev(dev);
3719         QETH_CARD_TEXT(card, 3, "ipevent");
3720         if (!card)
3721                 return NOTIFY_DONE;
3722
3723         addr = qeth_l3_get_addr_buffer(QETH_PROT_IPV4);
3724         if (addr != NULL) {
3725                 addr->u.a4.addr = ifa->ifa_address;
3726                 addr->u.a4.mask = ifa->ifa_mask;
3727                 addr->type = QETH_IP_TYPE_NORMAL;
3728         } else
3729                 goto out;
3730
3731         switch (event) {
3732         case NETDEV_UP:
3733                 if (!qeth_l3_add_ip(card, addr))
3734                         kfree(addr);
3735                 break;
3736         case NETDEV_DOWN:
3737                 if (!qeth_l3_delete_ip(card, addr))
3738                         kfree(addr);
3739                 break;
3740         default:
3741                 break;
3742         }
3743         qeth_l3_set_ip_addr_list(card);
3744 out:
3745         return NOTIFY_DONE;
3746 }
3747
3748 static struct notifier_block qeth_l3_ip_notifier = {
3749         qeth_l3_ip_event,
3750         NULL,
3751 };
3752
3753 #ifdef CONFIG_QETH_IPV6
3754 /**
3755  * IPv6 event handler
3756  */
3757 static int qeth_l3_ip6_event(struct notifier_block *this,
3758                              unsigned long event, void *ptr)
3759 {
3760         struct inet6_ifaddr *ifa = (struct inet6_ifaddr *)ptr;
3761         struct net_device *dev = (struct net_device *)ifa->idev->dev;
3762         struct qeth_ipaddr *addr;
3763         struct qeth_card *card;
3764
3765
3766         card = qeth_l3_get_card_from_dev(dev);
3767         if (!card)
3768                 return NOTIFY_DONE;
3769         QETH_CARD_TEXT(card, 3, "ip6event");
3770         if (!qeth_is_supported(card, IPA_IPV6))
3771                 return NOTIFY_DONE;
3772
3773         addr = qeth_l3_get_addr_buffer(QETH_PROT_IPV6);
3774         if (addr != NULL) {
3775                 memcpy(&addr->u.a6.addr, &ifa->addr, sizeof(struct in6_addr));
3776                 addr->u.a6.pfxlen = ifa->prefix_len;
3777                 addr->type = QETH_IP_TYPE_NORMAL;
3778         } else
3779                 goto out;
3780
3781         switch (event) {
3782         case NETDEV_UP:
3783                 if (!qeth_l3_add_ip(card, addr))
3784                         kfree(addr);
3785                 break;
3786         case NETDEV_DOWN:
3787                 if (!qeth_l3_delete_ip(card, addr))
3788                         kfree(addr);
3789                 break;
3790         default:
3791                 break;
3792         }
3793         qeth_l3_set_ip_addr_list(card);
3794 out:
3795         return NOTIFY_DONE;
3796 }
3797
3798 static struct notifier_block qeth_l3_ip6_notifier = {
3799         qeth_l3_ip6_event,
3800         NULL,
3801 };
3802 #endif
3803
3804 static int qeth_l3_register_notifiers(void)
3805 {
3806         int rc;
3807
3808         QETH_DBF_TEXT(SETUP, 5, "regnotif");
3809         rc = register_inetaddr_notifier(&qeth_l3_ip_notifier);
3810         if (rc)
3811                 return rc;
3812 #ifdef CONFIG_QETH_IPV6
3813         rc = register_inet6addr_notifier(&qeth_l3_ip6_notifier);
3814         if (rc) {
3815                 unregister_inetaddr_notifier(&qeth_l3_ip_notifier);
3816                 return rc;
3817         }
3818 #else
3819         pr_warning("There is no IPv6 support for the layer 3 discipline\n");
3820 #endif
3821         return 0;
3822 }
3823
3824 static void qeth_l3_unregister_notifiers(void)
3825 {
3826
3827         QETH_DBF_TEXT(SETUP, 5, "unregnot");
3828         BUG_ON(unregister_inetaddr_notifier(&qeth_l3_ip_notifier));
3829 #ifdef CONFIG_QETH_IPV6
3830         BUG_ON(unregister_inet6addr_notifier(&qeth_l3_ip6_notifier));
3831 #endif /* QETH_IPV6 */
3832 }
3833
3834 static int __init qeth_l3_init(void)
3835 {
3836         int rc = 0;
3837
3838         pr_info("register layer 3 discipline\n");
3839         rc = qeth_l3_register_notifiers();
3840         return rc;
3841 }
3842
3843 static void __exit qeth_l3_exit(void)
3844 {
3845         qeth_l3_unregister_notifiers();
3846         pr_info("unregister layer 3 discipline\n");
3847 }
3848
3849 module_init(qeth_l3_init);
3850 module_exit(qeth_l3_exit);
3851 MODULE_AUTHOR("Frank Blaschka <frank.blaschka@de.ibm.com>");
3852 MODULE_DESCRIPTION("qeth layer 3 discipline");
3853 MODULE_LICENSE("GPL");