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 static int qeth_l3_set_offline(struct ccwgroup_device *);
  34 static int qeth_l3_recover(void *);
  35 static int qeth_l3_stop(struct net_device *);
  36 static void qeth_l3_set_multicast_list(struct net_device *);
  37 static int qeth_l3_neigh_setup(struct net_device *, struct neigh_parms *);
  38 static int qeth_l3_register_addr_entry(struct qeth_card *,
  39                 struct qeth_ipaddr *);
  40 static int qeth_l3_deregister_addr_entry(struct qeth_card *,
  41                 struct qeth_ipaddr *);
  42 static int __qeth_l3_set_online(struct ccwgroup_device *, int);
  43 static int __qeth_l3_set_offline(struct ccwgroup_device *, int);
  44
  45 int qeth_l3_set_large_send(struct qeth_card *card,
  46                 enum qeth_large_send_types type)
  47 {
  48         int rc = 0;
  49
  50         card->options.large_send = type;
  51         if (card->dev == NULL)
  52                 return 0;
  53
  54         if (card->options.large_send == QETH_LARGE_SEND_TSO) {
  55                 if (qeth_is_supported(card, IPA_OUTBOUND_TSO)) {
  56                         card->dev->features |= NETIF_F_TSO | NETIF_F_SG |
  57                                         NETIF_F_HW_CSUM;
  58                 } else {
  59                         card->dev->features &= ~(NETIF_F_TSO | NETIF_F_SG |
  60                                         NETIF_F_HW_CSUM);
  61                         card->options.large_send = QETH_LARGE_SEND_NO;
  62                         rc = -EOPNOTSUPP;
  63                 }
  64         } else {
  65                 card->dev->features &= ~(NETIF_F_TSO | NETIF_F_SG |
  66                                         NETIF_F_HW_CSUM);
  67                 card->options.large_send = QETH_LARGE_SEND_NO;
  68         }
  69         return rc;
  70 }
  71
  72 static int qeth_l3_isxdigit(char *buf)
  73 {
  74         while (*buf) {
  75                 if (!isxdigit(*buf++))
  76                         return 0;
  77         }
  78         return 1;
  79 }
  80
  81 void qeth_l3_ipaddr4_to_string(const __u8 *addr, char *buf)
  82 {
  83         sprintf(buf, "%i.%i.%i.%i", addr[0], addr[1], addr[2], addr[3]);
  84 }
  85
  86 int qeth_l3_string_to_ipaddr4(const char *buf, __u8 *addr)
  87 {
  88         int count = 0, rc = 0;
  89         int in[4];
  90         char c;
  91
  92         rc = sscanf(buf, "%u.%u.%u.%u%c",
  93                     &in[0], &in[1], &in[2], &in[3], &c);
  94         if (rc != 4 && (rc != 5 || c != '\n'))
  95                 return -EINVAL;
  96         for (count = 0; count < 4; count++) {
  97                 if (in[count] > 255)
  98                         return -EINVAL;
  99                 addr[count] = in[count];
 100         }
 101         return 0;
 102 }
 103
 104 void qeth_l3_ipaddr6_to_string(const __u8 *addr, char *buf)
 105 {
 106         sprintf(buf, "%02x%02x:%02x%02x:%02x%02x:%02x%02x"
 107                      ":%02x%02x:%02x%02x:%02x%02x:%02x%02x",
 108                      addr[0], addr[1], addr[2], addr[3],
 109                      addr[4], addr[5], addr[6], addr[7],
 110                      addr[8], addr[9], addr[10], addr[11],
 111                      addr[12], addr[13], addr[14], addr[15]);
 112 }
 113
 114 int qeth_l3_string_to_ipaddr6(const char *buf, __u8 *addr)
 115 {
 116         const char *end, *end_tmp, *start;
 117         __u16 *in;
 118         char num[5];
 119         int num2, cnt, out, found, save_cnt;
 120         unsigned short in_tmp[8] = {0, };
 121
 122         cnt = out = found = save_cnt = num2 = 0;
 123         end = start = buf;
 124         in = (__u16 *) addr;
 125         memset(in, 0, 16);
 126         while (*end) {
 127                 end = strchr(start, ':');
 128                 if (end == NULL) {
 129                         end = buf + strlen(buf);
 130                         end_tmp = strchr(start, '\n');
 131                         if (end_tmp != NULL)
 132                                 end = end_tmp;
 133                         out = 1;
 134                 }
 135                 if ((end - start)) {
 136                         memset(num, 0, 5);
 137                         if ((end - start) > 4)
 138                                 return -EINVAL;
 139                         memcpy(num, start, end - start);
 140                         if (!qeth_l3_isxdigit(num))
 141                                 return -EINVAL;
 142                         sscanf(start, "%x", &num2);
 143                         if (found)
 144                                 in_tmp[save_cnt++] = num2;
 145                         else
 146                                 in[cnt++] = num2;
 147                         if (out)
 148                                 break;
 149                 } else {
 150                         if (found)
 151                                 return -EINVAL;
 152                         found = 1;
 153                 }
 154                 start = ++end;
 155         }
 156         if (cnt + save_cnt > 8)
 157                 return -EINVAL;
 158         cnt = 7;
 159         while (save_cnt)
 160                 in[cnt--] = in_tmp[--save_cnt];
 161         return 0;
 162 }
 163
 164 void qeth_l3_ipaddr_to_string(enum qeth_prot_versions proto, const __u8 *addr,
 165                                 char *buf)
 166 {
 167         if (proto == QETH_PROT_IPV4)
 168                 qeth_l3_ipaddr4_to_string(addr, buf);
 169         else if (proto == QETH_PROT_IPV6)
 170                 qeth_l3_ipaddr6_to_string(addr, buf);
 171 }
 172
 173 int qeth_l3_string_to_ipaddr(const char *buf, enum qeth_prot_versions proto,
 174                                 __u8 *addr)
 175 {
 176         if (proto == QETH_PROT_IPV4)
 177                 return qeth_l3_string_to_ipaddr4(buf, addr);
 178         else if (proto == QETH_PROT_IPV6)
 179                 return qeth_l3_string_to_ipaddr6(buf, addr);
 180         else
 181                 return -EINVAL;
 182 }
 183
 184 static void qeth_l3_convert_addr_to_bits(u8 *addr, u8 *bits, int len)
 185 {
 186         int i, j;
 187         u8 octet;
 188
 189         for (i = 0; i < len; ++i) {
 190                 octet = addr[i];
 191                 for (j = 7; j >= 0; --j) {
 192                         bits[i*8 + j] = octet & 1;
 193                         octet >>= 1;
 194                 }
 195         }
 196 }
 197
 198 static int qeth_l3_is_addr_covered_by_ipato(struct qeth_card *card,
 199                                                 struct qeth_ipaddr *addr)
 200 {
 201         struct qeth_ipato_entry *ipatoe;
 202         u8 addr_bits[128] = {0, };
 203         u8 ipatoe_bits[128] = {0, };
 204         int rc = 0;
 205
 206         if (!card->ipato.enabled)
 207                 return 0;
 208
 209         qeth_l3_convert_addr_to_bits((u8 *) &addr->u, addr_bits,
 210                                   (addr->proto == QETH_PROT_IPV4)? 4:16);
 211         list_for_each_entry(ipatoe, &card->ipato.entries, entry) {
 212                 if (addr->proto != ipatoe->proto)
 213                         continue;
 214                 qeth_l3_convert_addr_to_bits(ipatoe->addr, ipatoe_bits,
 215                                           (ipatoe->proto == QETH_PROT_IPV4) ?
 216                                           4 : 16);
 217                 if (addr->proto == QETH_PROT_IPV4)
 218                         rc = !memcmp(addr_bits, ipatoe_bits,
 219                                      min(32, ipatoe->mask_bits));
 220                 else
 221                         rc = !memcmp(addr_bits, ipatoe_bits,
 222                                      min(128, ipatoe->mask_bits));
 223                 if (rc)
 224                         break;
 225         }
 226         /* invert? */
 227         if ((addr->proto == QETH_PROT_IPV4) && card->ipato.invert4)
 228                 rc = !rc;
 229         else if ((addr->proto == QETH_PROT_IPV6) && card->ipato.invert6)
 230                 rc = !rc;
 231
 232         return rc;
 233 }
 234
 235 /*
 236  * Add IP to be added to todo list. If there is already an "add todo"
 237  * in this list we just incremenent the reference count.
 238  * Returns 0 if we  just incremented reference count.
 239  */
 240 static int __qeth_l3_insert_ip_todo(struct qeth_card *card,
 241                                         struct qeth_ipaddr *addr, int add)
 242 {
 243         struct qeth_ipaddr *tmp, *t;
 244         int found = 0;
 245
 246         if (card->options.sniffer)
 247                 return 0;
 248         list_for_each_entry_safe(tmp, t, card->ip_tbd_list, entry) {
 249                 if ((addr->type == QETH_IP_TYPE_DEL_ALL_MC) &&
 250                     (tmp->type == QETH_IP_TYPE_DEL_ALL_MC))
 251                         return 0;
 252                 if ((tmp->proto        == QETH_PROT_IPV4)     &&
 253                     (addr->proto       == QETH_PROT_IPV4)     &&
 254                     (tmp->type         == addr->type)         &&
 255                     (tmp->is_multicast == addr->is_multicast) &&
 256                     (tmp->u.a4.addr    == addr->u.a4.addr)    &&
 257                     (tmp->u.a4.mask    == addr->u.a4.mask)) {
 258                         found = 1;
 259                         break;
 260                 }
 261                 if ((tmp->proto        == QETH_PROT_IPV6)      &&
 262                     (addr->proto       == QETH_PROT_IPV6)      &&
 263                     (tmp->type         == addr->type)          &&
 264                     (tmp->is_multicast == addr->is_multicast)  &&
 265                     (tmp->u.a6.pfxlen  == addr->u.a6.pfxlen)   &&
 266                     (memcmp(&tmp->u.a6.addr, &addr->u.a6.addr,
 267                             sizeof(struct in6_addr)) == 0)) {
 268                         found = 1;
 269                         break;
 270                 }
 271         }
 272         if (found) {
 273                 if (addr->users != 0)
 274                         tmp->users += addr->users;
 275                 else
 276                         tmp->users += add ? 1 : -1;
 277                 if (tmp->users == 0) {
 278                         list_del(&tmp->entry);
 279                         kfree(tmp);
 280                 }
 281                 return 0;
 282         } else {
 283                 if (addr->type == QETH_IP_TYPE_DEL_ALL_MC)
 284                         list_add(&addr->entry, card->ip_tbd_list);
 285                 else {
 286                         if (addr->users == 0)
 287                                 addr->users += add ? 1 : -1;
 288                         if (add && (addr->type == QETH_IP_TYPE_NORMAL) &&
 289                             qeth_l3_is_addr_covered_by_ipato(card, addr)) {
 290                                 QETH_DBF_TEXT(TRACE, 2, "tkovaddr");
 291                                 addr->set_flags |= QETH_IPA_SETIP_TAKEOVER_FLAG;
 292                         }
 293                         list_add_tail(&addr->entry, card->ip_tbd_list);
 294                 }
 295                 return 1;
 296         }
 297 }
 298
 299 static int qeth_l3_delete_ip(struct qeth_card *card, struct qeth_ipaddr *addr)
 300 {
 301         unsigned long flags;
 302         int rc = 0;
 303
 304         QETH_DBF_TEXT(TRACE, 4, "delip");
 305
 306         if (addr->proto == QETH_PROT_IPV4)
 307                 QETH_DBF_HEX(TRACE, 4, &addr->u.a4.addr, 4);
 308         else {
 309                 QETH_DBF_HEX(TRACE, 4, &addr->u.a6.addr, 8);
 310                 QETH_DBF_HEX(TRACE, 4, ((char *)&addr->u.a6.addr) + 8, 8);
 311         }
 312         spin_lock_irqsave(&card->ip_lock, flags);
 313         rc = __qeth_l3_insert_ip_todo(card, addr, 0);
 314         spin_unlock_irqrestore(&card->ip_lock, flags);
 315         return rc;
 316 }
 317
 318 static int qeth_l3_add_ip(struct qeth_card *card, struct qeth_ipaddr *addr)
 319 {
 320         unsigned long flags;
 321         int rc = 0;
 322
 323         QETH_DBF_TEXT(TRACE, 4, "addip");
 324         if (addr->proto == QETH_PROT_IPV4)
 325                 QETH_DBF_HEX(TRACE, 4, &addr->u.a4.addr, 4);
 326         else {
 327                 QETH_DBF_HEX(TRACE, 4, &addr->u.a6.addr, 8);
 328                 QETH_DBF_HEX(TRACE, 4, ((char *)&addr->u.a6.addr) + 8, 8);
 329         }
 330         spin_lock_irqsave(&card->ip_lock, flags);
 331         rc = __qeth_l3_insert_ip_todo(card, addr, 1);
 332         spin_unlock_irqrestore(&card->ip_lock, flags);
 333         return rc;
 334 }
 335
 336
 337 static struct qeth_ipaddr *qeth_l3_get_addr_buffer(
 338                                 enum qeth_prot_versions prot)
 339 {
 340         struct qeth_ipaddr *addr;
 341
 342         addr = kzalloc(sizeof(struct qeth_ipaddr), GFP_ATOMIC);
 343         if (addr == NULL) {
 344                 return NULL;
 345         }
 346         addr->type = QETH_IP_TYPE_NORMAL;
 347         addr->proto = prot;
 348         return addr;
 349 }
 350
 351 static void qeth_l3_delete_mc_addresses(struct qeth_card *card)
 352 {
 353         struct qeth_ipaddr *iptodo;
 354         unsigned long flags;
 355
 356         QETH_DBF_TEXT(TRACE, 4, "delmc");
 357         iptodo = qeth_l3_get_addr_buffer(QETH_PROT_IPV4);
 358         if (!iptodo) {
 359                 QETH_DBF_TEXT(TRACE, 2, "dmcnomem");
 360                 return;
 361         }
 362         iptodo->type = QETH_IP_TYPE_DEL_ALL_MC;
 363         spin_lock_irqsave(&card->ip_lock, flags);
 364         if (!__qeth_l3_insert_ip_todo(card, iptodo, 0))
 365                 kfree(iptodo);
 366         spin_unlock_irqrestore(&card->ip_lock, flags);
 367 }
 368
 369 /*
 370  * Add/remove address to/from card's ip list, i.e. try to add or remove
 371  * reference to/from an IP address that is already registered on the card.
 372  * Returns:
 373  *      0  address was on card and its reference count has been adjusted,
 374  *         but is still > 0, so nothing has to be done
 375  *         also returns 0 if card was not on card and the todo was to delete
 376  *         the address -> there is also nothing to be done
 377  *      1  address was not on card and the todo is to add it to the card's ip
 378  *         list
 379  *      -1 address was on card and its reference count has been decremented
 380  *         to <= 0 by the todo -> address must be removed from card
 381  */
 382 static int __qeth_l3_ref_ip_on_card(struct qeth_card *card,
 383                 struct qeth_ipaddr *todo, struct qeth_ipaddr **__addr)
 384 {
 385         struct qeth_ipaddr *addr;
 386         int found = 0;
 387
 388         list_for_each_entry(addr, &card->ip_list, entry) {
 389                 if ((addr->proto == QETH_PROT_IPV4) &&
 390                     (todo->proto == QETH_PROT_IPV4) &&
 391                     (addr->type == todo->type) &&
 392                     (addr->u.a4.addr == todo->u.a4.addr) &&
 393                     (addr->u.a4.mask == todo->u.a4.mask)) {
 394                         found = 1;
 395                         break;
 396                 }
 397                 if ((addr->proto == QETH_PROT_IPV6) &&
 398                     (todo->proto == QETH_PROT_IPV6) &&
 399                     (addr->type == todo->type) &&
 400                     (addr->u.a6.pfxlen == todo->u.a6.pfxlen) &&
 401                     (memcmp(&addr->u.a6.addr, &todo->u.a6.addr,
 402                             sizeof(struct in6_addr)) == 0)) {
 403                         found = 1;
 404                         break;
 405                 }
 406         }
 407         if (found) {
 408                 addr->users += todo->users;
 409                 if (addr->users <= 0) {
 410                         *__addr = addr;
 411                         return -1;
 412                 } else {
 413                         /* for VIPA and RXIP limit refcount to 1 */
 414                         if (addr->type != QETH_IP_TYPE_NORMAL)
 415                                 addr->users = 1;
 416                         return 0;
 417                 }
 418         }
 419         if (todo->users > 0) {
 420                 /* for VIPA and RXIP limit refcount to 1 */
 421                 if (todo->type != QETH_IP_TYPE_NORMAL)
 422                         todo->users = 1;
 423                 return 1;
 424         } else
 425                 return 0;
 426 }
 427
 428 static void __qeth_l3_delete_all_mc(struct qeth_card *card,
 429                                         unsigned long *flags)
 430 {
 431         struct list_head fail_list;
 432         struct qeth_ipaddr *addr, *tmp;
 433         int rc;
 434
 435         INIT_LIST_HEAD(&fail_list);
 436 again:
 437         list_for_each_entry_safe(addr, tmp, &card->ip_list, entry) {
 438                 if (addr->is_multicast) {
 439                         list_del(&addr->entry);
 440                         spin_unlock_irqrestore(&card->ip_lock, *flags);
 441                         rc = qeth_l3_deregister_addr_entry(card, addr);
 442                         spin_lock_irqsave(&card->ip_lock, *flags);
 443                         if (!rc || (rc == IPA_RC_MC_ADDR_NOT_FOUND))
 444                                 kfree(addr);
 445                         else
 446                                 list_add_tail(&addr->entry, &fail_list);
 447                         goto again;
 448                 }
 449         }
 450         list_splice(&fail_list, &card->ip_list);
 451 }
 452
 453 static void qeth_l3_set_ip_addr_list(struct qeth_card *card)
 454 {
 455         struct list_head *tbd_list;
 456         struct qeth_ipaddr *todo, *addr;
 457         unsigned long flags;
 458         int rc;
 459
 460         QETH_DBF_TEXT(TRACE, 2, "sdiplist");
 461         QETH_DBF_HEX(TRACE, 2, &card, sizeof(void *));
 462
 463         if (card->options.sniffer)
 464                 return;
 465         spin_lock_irqsave(&card->ip_lock, flags);
 466         tbd_list = card->ip_tbd_list;
 467         card->ip_tbd_list = kmalloc(sizeof(struct list_head), GFP_ATOMIC);
 468         if (!card->ip_tbd_list) {
 469                 QETH_DBF_TEXT(TRACE, 0, "silnomem");
 470                 card->ip_tbd_list = tbd_list;
 471                 spin_unlock_irqrestore(&card->ip_lock, flags);
 472                 return;
 473         } else
 474                 INIT_LIST_HEAD(card->ip_tbd_list);
 475
 476         while (!list_empty(tbd_list)) {
 477                 todo = list_entry(tbd_list->next, struct qeth_ipaddr, entry);
 478                 list_del(&todo->entry);
 479                 if (todo->type == QETH_IP_TYPE_DEL_ALL_MC) {
 480                         __qeth_l3_delete_all_mc(card, &flags);
 481                         kfree(todo);
 482                         continue;
 483                 }
 484                 rc = __qeth_l3_ref_ip_on_card(card, todo, &addr);
 485                 if (rc == 0) {
 486                         /* nothing to be done; only adjusted refcount */
 487                         kfree(todo);
 488                 } else if (rc == 1) {
 489                         /* new entry to be added to on-card list */
 490                         spin_unlock_irqrestore(&card->ip_lock, flags);
 491                         rc = qeth_l3_register_addr_entry(card, todo);
 492                         spin_lock_irqsave(&card->ip_lock, flags);
 493                         if (!rc || (rc == IPA_RC_LAN_OFFLINE))
 494                                 list_add_tail(&todo->entry, &card->ip_list);
 495                         else
 496                                 kfree(todo);
 497                 } else if (rc == -1) {
 498                         /* on-card entry to be removed */
 499                         list_del_init(&addr->entry);
 500                         spin_unlock_irqrestore(&card->ip_lock, flags);
 501                         rc = qeth_l3_deregister_addr_entry(card, addr);
 502                         spin_lock_irqsave(&card->ip_lock, flags);
 503                         if (!rc || (rc == IPA_RC_IP_ADDRESS_NOT_DEFINED))
 504                                 kfree(addr);
 505                         else
 506                                 list_add_tail(&addr->entry, &card->ip_list);
 507                         kfree(todo);
 508                 }
 509         }
 510         spin_unlock_irqrestore(&card->ip_lock, flags);
 511         kfree(tbd_list);
 512 }
 513
 514 static void qeth_l3_clear_ip_list(struct qeth_card *card, int clean,
 515                                         int recover)
 516 {
 517         struct qeth_ipaddr *addr, *tmp;
 518         unsigned long flags;
 519
 520         QETH_DBF_TEXT(TRACE, 4, "clearip");
 521         if (recover && card->options.sniffer)
 522                 return;
 523         spin_lock_irqsave(&card->ip_lock, flags);
 524         /* clear todo list */
 525         list_for_each_entry_safe(addr, tmp, card->ip_tbd_list, entry) {
 526                 list_del(&addr->entry);
 527                 kfree(addr);
 528         }
 529
 530         while (!list_empty(&card->ip_list)) {
 531                 addr = list_entry(card->ip_list.next,
 532                                   struct qeth_ipaddr, entry);
 533                 list_del_init(&addr->entry);
 534                 if (clean) {
 535                         spin_unlock_irqrestore(&card->ip_lock, flags);
 536                         qeth_l3_deregister_addr_entry(card, addr);
 537                         spin_lock_irqsave(&card->ip_lock, flags);
 538                 }
 539                 if (!recover || addr->is_multicast) {
 540                         kfree(addr);
 541                         continue;
 542                 }
 543                 list_add_tail(&addr->entry, card->ip_tbd_list);
 544         }
 545         spin_unlock_irqrestore(&card->ip_lock, flags);
 546 }
 547
 548 static int qeth_l3_address_exists_in_list(struct list_head *list,
 549                 struct qeth_ipaddr *addr, int same_type)
 550 {
 551         struct qeth_ipaddr *tmp;
 552
 553         list_for_each_entry(tmp, list, entry) {
 554                 if ((tmp->proto == QETH_PROT_IPV4) &&
 555                     (addr->proto == QETH_PROT_IPV4) &&
 556                     ((same_type && (tmp->type == addr->type)) ||
 557                     (!same_type && (tmp->type != addr->type))) &&
 558                     (tmp->u.a4.addr == addr->u.a4.addr))
 559                         return 1;
 560
 561                 if ((tmp->proto == QETH_PROT_IPV6) &&
 562                     (addr->proto == QETH_PROT_IPV6) &&
 563                     ((same_type && (tmp->type == addr->type)) ||
 564                     (!same_type && (tmp->type != addr->type))) &&
 565                     (memcmp(&tmp->u.a6.addr, &addr->u.a6.addr,
 566                             sizeof(struct in6_addr)) == 0))
 567                         return 1;
 568
 569         }
 570         return 0;
 571 }
 572
 573 static int qeth_l3_send_setdelmc(struct qeth_card *card,
 574                         struct qeth_ipaddr *addr, int ipacmd)
 575 {
 576         int rc;
 577         struct qeth_cmd_buffer *iob;
 578         struct qeth_ipa_cmd *cmd;
 579
 580         QETH_DBF_TEXT(TRACE, 4, "setdelmc");
 581
 582         iob = qeth_get_ipacmd_buffer(card, ipacmd, addr->proto);
 583         cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
 584         memcpy(&cmd->data.setdelipm.mac, addr->mac, OSA_ADDR_LEN);
 585         if (addr->proto == QETH_PROT_IPV6)
 586                 memcpy(cmd->data.setdelipm.ip6, &addr->u.a6.addr,
 587                        sizeof(struct in6_addr));
 588         else
 589                 memcpy(&cmd->data.setdelipm.ip4, &addr->u.a4.addr, 4);
 590
 591         rc = qeth_send_ipa_cmd(card, iob, NULL, NULL);
 592
 593         return rc;
 594 }
 595
 596 static void qeth_l3_fill_netmask(u8 *netmask, unsigned int len)
 597 {
 598         int i, j;
 599         for (i = 0; i < 16; i++) {
 600                 j = (len) - (i * 8);
 601                 if (j >= 8)
 602                         netmask[i] = 0xff;
 603                 else if (j > 0)
 604                         netmask[i] = (u8)(0xFF00 >> j);
 605                 else
 606                         netmask[i] = 0;
 607         }
 608 }
 609
 610 static int qeth_l3_send_setdelip(struct qeth_card *card,
 611                 struct qeth_ipaddr *addr, int ipacmd, unsigned int flags)
 612 {
 613         int rc;
 614         struct qeth_cmd_buffer *iob;
 615         struct qeth_ipa_cmd *cmd;
 616         __u8 netmask[16];
 617
 618         QETH_DBF_TEXT(TRACE, 4, "setdelip");
 619         QETH_DBF_TEXT_(TRACE, 4, "flags%02X", flags);
 620
 621         iob = qeth_get_ipacmd_buffer(card, ipacmd, addr->proto);
 622         cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
 623         if (addr->proto == QETH_PROT_IPV6) {
 624                 memcpy(cmd->data.setdelip6.ip_addr, &addr->u.a6.addr,
 625                        sizeof(struct in6_addr));
 626                 qeth_l3_fill_netmask(netmask, addr->u.a6.pfxlen);
 627                 memcpy(cmd->data.setdelip6.mask, netmask,
 628                        sizeof(struct in6_addr));
 629                 cmd->data.setdelip6.flags = flags;
 630         } else {
 631                 memcpy(cmd->data.setdelip4.ip_addr, &addr->u.a4.addr, 4);
 632                 memcpy(cmd->data.setdelip4.mask, &addr->u.a4.mask, 4);
 633                 cmd->data.setdelip4.flags = flags;
 634         }
 635
 636         rc = qeth_send_ipa_cmd(card, iob, NULL, NULL);
 637
 638         return rc;
 639 }
 640
 641 static int qeth_l3_send_setrouting(struct qeth_card *card,
 642         enum qeth_routing_types type, enum qeth_prot_versions prot)
 643 {
 644         int rc;
 645         struct qeth_ipa_cmd *cmd;
 646         struct qeth_cmd_buffer *iob;
 647
 648         QETH_DBF_TEXT(TRACE, 4, "setroutg");
 649         iob = qeth_get_ipacmd_buffer(card, IPA_CMD_SETRTG, prot);
 650         cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
 651         cmd->data.setrtg.type = (type);
 652         rc = qeth_send_ipa_cmd(card, iob, NULL, NULL);
 653
 654         return rc;
 655 }
 656
 657 static void qeth_l3_correct_routing_type(struct qeth_card *card,
 658                 enum qeth_routing_types *type, enum qeth_prot_versions prot)
 659 {
 660         if (card->info.type == QETH_CARD_TYPE_IQD) {
 661                 switch (*type) {
 662                 case NO_ROUTER:
 663                 case PRIMARY_CONNECTOR:
 664                 case SECONDARY_CONNECTOR:
 665                 case MULTICAST_ROUTER:
 666                         return;
 667                 default:
 668                         goto out_inval;
 669                 }
 670         } else {
 671                 switch (*type) {
 672                 case NO_ROUTER:
 673                 case PRIMARY_ROUTER:
 674                 case SECONDARY_ROUTER:
 675                         return;
 676                 case MULTICAST_ROUTER:
 677                         if (qeth_is_ipafunc_supported(card, prot,
 678                                                       IPA_OSA_MC_ROUTER))
 679                                 return;
 680                 default:
 681                         goto out_inval;
 682                 }
 683         }
 684 out_inval:
 685         *type = NO_ROUTER;
 686 }
 687
 688 int qeth_l3_setrouting_v4(struct qeth_card *card)
 689 {
 690         int rc;
 691
 692         QETH_DBF_TEXT(TRACE, 3, "setrtg4");
 693
 694         qeth_l3_correct_routing_type(card, &card->options.route4.type,
 695                                   QETH_PROT_IPV4);
 696
 697         rc = qeth_l3_send_setrouting(card, card->options.route4.type,
 698                                   QETH_PROT_IPV4);
 699         if (rc) {
 700                 card->options.route4.type = NO_ROUTER;
 701                 QETH_DBF_MESSAGE(2, "Error (0x%04x) while setting routing type"
 702                         " on %s. Type set to 'no router'.\n", rc,
 703                         QETH_CARD_IFNAME(card));
 704         }
 705         return rc;
 706 }
 707
 708 int qeth_l3_setrouting_v6(struct qeth_card *card)
 709 {
 710         int rc = 0;
 711
 712         QETH_DBF_TEXT(TRACE, 3, "setrtg6");
 713 #ifdef CONFIG_QETH_IPV6
 714
 715         if (!qeth_is_supported(card, IPA_IPV6))
 716                 return 0;
 717         qeth_l3_correct_routing_type(card, &card->options.route6.type,
 718                                   QETH_PROT_IPV6);
 719
 720         rc = qeth_l3_send_setrouting(card, card->options.route6.type,
 721                                   QETH_PROT_IPV6);
 722         if (rc) {
 723                 card->options.route6.type = NO_ROUTER;
 724                 QETH_DBF_MESSAGE(2, "Error (0x%04x) while setting routing type"
 725                         " on %s. Type set to 'no router'.\n", rc,
 726                         QETH_CARD_IFNAME(card));
 727         }
 728 #endif
 729         return rc;
 730 }
 731
 732 /*
 733  * IP address takeover related functions
 734  */
 735 static void qeth_l3_clear_ipato_list(struct qeth_card *card)
 736 {
 737
 738         struct qeth_ipato_entry *ipatoe, *tmp;
 739         unsigned long flags;
 740
 741         spin_lock_irqsave(&card->ip_lock, flags);
 742         list_for_each_entry_safe(ipatoe, tmp, &card->ipato.entries, entry) {
 743                 list_del(&ipatoe->entry);
 744                 kfree(ipatoe);
 745         }
 746         spin_unlock_irqrestore(&card->ip_lock, flags);
 747 }
 748
 749 int qeth_l3_add_ipato_entry(struct qeth_card *card,
 750                                 struct qeth_ipato_entry *new)
 751 {
 752         struct qeth_ipato_entry *ipatoe;
 753         unsigned long flags;
 754         int rc = 0;
 755
 756         QETH_DBF_TEXT(TRACE, 2, "addipato");
 757         spin_lock_irqsave(&card->ip_lock, flags);
 758         list_for_each_entry(ipatoe, &card->ipato.entries, entry) {
 759                 if (ipatoe->proto != new->proto)
 760                         continue;
 761                 if (!memcmp(ipatoe->addr, new->addr,
 762                             (ipatoe->proto == QETH_PROT_IPV4)? 4:16) &&
 763                     (ipatoe->mask_bits == new->mask_bits)) {
 764                         rc = -EEXIST;
 765                         break;
 766                 }
 767         }
 768         if (!rc)
 769                 list_add_tail(&new->entry, &card->ipato.entries);
 770
 771         spin_unlock_irqrestore(&card->ip_lock, flags);
 772         return rc;
 773 }
 774
 775 void qeth_l3_del_ipato_entry(struct qeth_card *card,
 776                 enum qeth_prot_versions proto, u8 *addr, int mask_bits)
 777 {
 778         struct qeth_ipato_entry *ipatoe, *tmp;
 779         unsigned long flags;
 780
 781         QETH_DBF_TEXT(TRACE, 2, "delipato");
 782         spin_lock_irqsave(&card->ip_lock, flags);
 783         list_for_each_entry_safe(ipatoe, tmp, &card->ipato.entries, entry) {
 784                 if (ipatoe->proto != proto)
 785                         continue;
 786                 if (!memcmp(ipatoe->addr, addr,
 787                             (proto == QETH_PROT_IPV4)? 4:16) &&
 788                     (ipatoe->mask_bits == mask_bits)) {
 789                         list_del(&ipatoe->entry);
 790                         kfree(ipatoe);
 791                 }
 792         }
 793         spin_unlock_irqrestore(&card->ip_lock, flags);
 794 }
 795
 796 /*
 797  * VIPA related functions
 798  */
 799 int qeth_l3_add_vipa(struct qeth_card *card, enum qeth_prot_versions proto,
 800               const u8 *addr)
 801 {
 802         struct qeth_ipaddr *ipaddr;
 803         unsigned long flags;
 804         int rc = 0;
 805
 806         ipaddr = qeth_l3_get_addr_buffer(proto);
 807         if (ipaddr) {
 808                 if (proto == QETH_PROT_IPV4) {
 809                         QETH_DBF_TEXT(TRACE, 2, "addvipa4");
 810                         memcpy(&ipaddr->u.a4.addr, addr, 4);
 811                         ipaddr->u.a4.mask = 0;
 812                 } else if (proto == QETH_PROT_IPV6) {
 813                         QETH_DBF_TEXT(TRACE, 2, "addvipa6");
 814                         memcpy(&ipaddr->u.a6.addr, addr, 16);
 815                         ipaddr->u.a6.pfxlen = 0;
 816                 }
 817                 ipaddr->type = QETH_IP_TYPE_VIPA;
 818                 ipaddr->set_flags = QETH_IPA_SETIP_VIPA_FLAG;
 819                 ipaddr->del_flags = QETH_IPA_DELIP_VIPA_FLAG;
 820         } else
 821                 return -ENOMEM;
 822         spin_lock_irqsave(&card->ip_lock, flags);
 823         if (qeth_l3_address_exists_in_list(&card->ip_list, ipaddr, 0) ||
 824             qeth_l3_address_exists_in_list(card->ip_tbd_list, ipaddr, 0))
 825                 rc = -EEXIST;
 826         spin_unlock_irqrestore(&card->ip_lock, flags);
 827         if (rc) {
 828                 return rc;
 829         }
 830         if (!qeth_l3_add_ip(card, ipaddr))
 831                 kfree(ipaddr);
 832         qeth_l3_set_ip_addr_list(card);
 833         return rc;
 834 }
 835
 836 void qeth_l3_del_vipa(struct qeth_card *card, enum qeth_prot_versions proto,
 837               const u8 *addr)
 838 {
 839         struct qeth_ipaddr *ipaddr;
 840
 841         ipaddr = qeth_l3_get_addr_buffer(proto);
 842         if (ipaddr) {
 843                 if (proto == QETH_PROT_IPV4) {
 844                         QETH_DBF_TEXT(TRACE, 2, "delvipa4");
 845                         memcpy(&ipaddr->u.a4.addr, addr, 4);
 846                         ipaddr->u.a4.mask = 0;
 847                 } else if (proto == QETH_PROT_IPV6) {
 848                         QETH_DBF_TEXT(TRACE, 2, "delvipa6");
 849                         memcpy(&ipaddr->u.a6.addr, addr, 16);
 850                         ipaddr->u.a6.pfxlen = 0;
 851                 }
 852                 ipaddr->type = QETH_IP_TYPE_VIPA;
 853         } else
 854                 return;
 855         if (!qeth_l3_delete_ip(card, ipaddr))
 856                 kfree(ipaddr);
 857         qeth_l3_set_ip_addr_list(card);
 858 }
 859
 860 /*
 861  * proxy ARP related functions
 862  */
 863 int qeth_l3_add_rxip(struct qeth_card *card, enum qeth_prot_versions proto,
 864               const u8 *addr)
 865 {
 866         struct qeth_ipaddr *ipaddr;
 867         unsigned long flags;
 868         int rc = 0;
 869
 870         ipaddr = qeth_l3_get_addr_buffer(proto);
 871         if (ipaddr) {
 872                 if (proto == QETH_PROT_IPV4) {
 873                         QETH_DBF_TEXT(TRACE, 2, "addrxip4");
 874                         memcpy(&ipaddr->u.a4.addr, addr, 4);
 875                         ipaddr->u.a4.mask = 0;
 876                 } else if (proto == QETH_PROT_IPV6) {
 877                         QETH_DBF_TEXT(TRACE, 2, "addrxip6");
 878                         memcpy(&ipaddr->u.a6.addr, addr, 16);
 879                         ipaddr->u.a6.pfxlen = 0;
 880                 }
 881                 ipaddr->type = QETH_IP_TYPE_RXIP;
 882                 ipaddr->set_flags = QETH_IPA_SETIP_TAKEOVER_FLAG;
 883                 ipaddr->del_flags = 0;
 884         } else
 885                 return -ENOMEM;
 886         spin_lock_irqsave(&card->ip_lock, flags);
 887         if (qeth_l3_address_exists_in_list(&card->ip_list, ipaddr, 0) ||
 888             qeth_l3_address_exists_in_list(card->ip_tbd_list, ipaddr, 0))
 889                 rc = -EEXIST;
 890         spin_unlock_irqrestore(&card->ip_lock, flags);
 891         if (rc) {
 892                 return rc;
 893         }
 894         if (!qeth_l3_add_ip(card, ipaddr))
 895                 kfree(ipaddr);
 896         qeth_l3_set_ip_addr_list(card);
 897         return 0;
 898 }
 899
 900 void qeth_l3_del_rxip(struct qeth_card *card, enum qeth_prot_versions proto,
 901                         const u8 *addr)
 902 {
 903         struct qeth_ipaddr *ipaddr;
 904
 905         ipaddr = qeth_l3_get_addr_buffer(proto);
 906         if (ipaddr) {
 907                 if (proto == QETH_PROT_IPV4) {
 908                         QETH_DBF_TEXT(TRACE, 2, "addrxip4");
 909                         memcpy(&ipaddr->u.a4.addr, addr, 4);
 910                         ipaddr->u.a4.mask = 0;
 911                 } else if (proto == QETH_PROT_IPV6) {
 912                         QETH_DBF_TEXT(TRACE, 2, "addrxip6");
 913                         memcpy(&ipaddr->u.a6.addr, addr, 16);
 914                         ipaddr->u.a6.pfxlen = 0;
 915                 }
 916                 ipaddr->type = QETH_IP_TYPE_RXIP;
 917         } else
 918                 return;
 919         if (!qeth_l3_delete_ip(card, ipaddr))
 920                 kfree(ipaddr);
 921         qeth_l3_set_ip_addr_list(card);
 922 }
 923
 924 static int qeth_l3_register_addr_entry(struct qeth_card *card,
 925                                 struct qeth_ipaddr *addr)
 926 {
 927         char buf[50];
 928         int rc = 0;
 929         int cnt = 3;
 930
 931         if (addr->proto == QETH_PROT_IPV4) {
 932                 QETH_DBF_TEXT(TRACE, 2, "setaddr4");
 933                 QETH_DBF_HEX(TRACE, 3, &addr->u.a4.addr, sizeof(int));
 934         } else if (addr->proto == QETH_PROT_IPV6) {
 935                 QETH_DBF_TEXT(TRACE, 2, "setaddr6");
 936                 QETH_DBF_HEX(TRACE, 3, &addr->u.a6.addr, 8);
 937                 QETH_DBF_HEX(TRACE, 3, ((char *)&addr->u.a6.addr) + 8, 8);
 938         } else {
 939                 QETH_DBF_TEXT(TRACE, 2, "setaddr?");
 940                 QETH_DBF_HEX(TRACE, 3, addr, sizeof(struct qeth_ipaddr));
 941         }
 942         do {
 943                 if (addr->is_multicast)
 944                         rc =  qeth_l3_send_setdelmc(card, addr, IPA_CMD_SETIPM);
 945                 else
 946                         rc = qeth_l3_send_setdelip(card, addr, IPA_CMD_SETIP,
 947                                         addr->set_flags);
 948                 if (rc)
 949                         QETH_DBF_TEXT(TRACE, 2, "failed");
 950         } while ((--cnt > 0) && rc);
 951         if (rc) {
 952                 QETH_DBF_TEXT(TRACE, 2, "FAILED");
 953                 qeth_l3_ipaddr_to_string(addr->proto, (u8 *)&addr->u, buf);
 954                 dev_warn(&card->gdev->dev,
 955                         "Registering IP address %s failed\n", buf);
 956         }
 957         return rc;
 958 }
 959
 960 static int qeth_l3_deregister_addr_entry(struct qeth_card *card,
 961                                                 struct qeth_ipaddr *addr)
 962 {
 963         int rc = 0;
 964
 965         if (addr->proto == QETH_PROT_IPV4) {
 966                 QETH_DBF_TEXT(TRACE, 2, "deladdr4");
 967                 QETH_DBF_HEX(TRACE, 3, &addr->u.a4.addr, sizeof(int));
 968         } else if (addr->proto == QETH_PROT_IPV6) {
 969                 QETH_DBF_TEXT(TRACE, 2, "deladdr6");
 970                 QETH_DBF_HEX(TRACE, 3, &addr->u.a6.addr, 8);
 971                 QETH_DBF_HEX(TRACE, 3, ((char *)&addr->u.a6.addr) + 8, 8);
 972         } else {
 973                 QETH_DBF_TEXT(TRACE, 2, "deladdr?");
 974                 QETH_DBF_HEX(TRACE, 3, addr, sizeof(struct qeth_ipaddr));
 975         }
 976         if (addr->is_multicast)
 977                 rc = qeth_l3_send_setdelmc(card, addr, IPA_CMD_DELIPM);
 978         else
 979                 rc = qeth_l3_send_setdelip(card, addr, IPA_CMD_DELIP,
 980                                         addr->del_flags);
 981         if (rc)
 982                 QETH_DBF_TEXT(TRACE, 2, "failed");
 983
 984         return rc;
 985 }
 986
 987 static inline u8 qeth_l3_get_qeth_hdr_flags4(int cast_type)
 988 {
 989         if (cast_type == RTN_MULTICAST)
 990                 return QETH_CAST_MULTICAST;
 991         if (cast_type == RTN_BROADCAST)
 992                 return QETH_CAST_BROADCAST;
 993         return QETH_CAST_UNICAST;
 994 }
 995
 996 static inline u8 qeth_l3_get_qeth_hdr_flags6(int cast_type)
 997 {
 998         u8 ct = QETH_HDR_PASSTHRU | QETH_HDR_IPV6;
 999         if (cast_type == RTN_MULTICAST)
1000                 return ct | QETH_CAST_MULTICAST;
1001         if (cast_type == RTN_ANYCAST)
1002                 return ct | QETH_CAST_ANYCAST;
1003         if (cast_type == RTN_BROADCAST)
1004                 return ct | QETH_CAST_BROADCAST;
1005         return ct | QETH_CAST_UNICAST;
1006 }
1007
1008 static int qeth_l3_send_setadp_mode(struct qeth_card *card, __u32 command,
1009                                         __u32 mode)
1010 {
1011         int rc;
1012         struct qeth_cmd_buffer *iob;
1013         struct qeth_ipa_cmd *cmd;
1014
1015         QETH_DBF_TEXT(TRACE, 4, "adpmode");
1016
1017         iob = qeth_get_adapter_cmd(card, command,
1018                                    sizeof(struct qeth_ipacmd_setadpparms));
1019         cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
1020         cmd->data.setadapterparms.data.mode = mode;
1021         rc = qeth_send_ipa_cmd(card, iob, qeth_default_setadapterparms_cb,
1022                                NULL);
1023         return rc;
1024 }
1025
1026 static int qeth_l3_setadapter_hstr(struct qeth_card *card)
1027 {
1028         int rc;
1029
1030         QETH_DBF_TEXT(TRACE, 4, "adphstr");
1031
1032         if (qeth_adp_supported(card, IPA_SETADP_SET_BROADCAST_MODE)) {
1033                 rc = qeth_l3_send_setadp_mode(card,
1034                                         IPA_SETADP_SET_BROADCAST_MODE,
1035                                         card->options.broadcast_mode);
1036                 if (rc)
1037                         QETH_DBF_MESSAGE(2, "couldn't set broadcast mode on "
1038                                    "device %s: x%x\n",
1039                                    CARD_BUS_ID(card), rc);
1040                 rc = qeth_l3_send_setadp_mode(card,
1041                                         IPA_SETADP_ALTER_MAC_ADDRESS,
1042                                         card->options.macaddr_mode);
1043                 if (rc)
1044                         QETH_DBF_MESSAGE(2, "couldn't set macaddr mode on "
1045                                    "device %s: x%x\n", CARD_BUS_ID(card), rc);
1046                 return rc;
1047         }
1048         if (card->options.broadcast_mode == QETH_TR_BROADCAST_LOCAL)
1049                 QETH_DBF_MESSAGE(2, "set adapter parameters not available "
1050                            "to set broadcast mode, using ALLRINGS "
1051                            "on device %s:\n", CARD_BUS_ID(card));
1052         if (card->options.macaddr_mode == QETH_TR_MACADDR_CANONICAL)
1053                 QETH_DBF_MESSAGE(2, "set adapter parameters not available "
1054                            "to set macaddr mode, using NONCANONICAL "
1055                            "on device %s:\n", CARD_BUS_ID(card));
1056         return 0;
1057 }
1058
1059 static int qeth_l3_setadapter_parms(struct qeth_card *card)
1060 {
1061         int rc;
1062
1063         QETH_DBF_TEXT(SETUP, 2, "setadprm");
1064
1065         if (!qeth_is_supported(card, IPA_SETADAPTERPARMS)) {
1066                 dev_info(&card->gdev->dev,
1067                         "set adapter parameters not supported.\n");
1068                 QETH_DBF_TEXT(SETUP, 2, " notsupp");
1069                 return 0;
1070         }
1071         rc = qeth_query_setadapterparms(card);
1072         if (rc) {
1073                 QETH_DBF_MESSAGE(2, "%s couldn't set adapter parameters: "
1074                         "0x%x\n", dev_name(&card->gdev->dev), rc);
1075                 return rc;
1076         }
1077         if (qeth_adp_supported(card, IPA_SETADP_ALTER_MAC_ADDRESS)) {
1078                 rc = qeth_setadpparms_change_macaddr(card);
1079                 if (rc)
1080                         dev_warn(&card->gdev->dev, "Reading the adapter MAC"
1081                                 " address failed\n");
1082         }
1083
1084         if ((card->info.link_type == QETH_LINK_TYPE_HSTR) ||
1085             (card->info.link_type == QETH_LINK_TYPE_LANE_TR))
1086                 rc = qeth_l3_setadapter_hstr(card);
1087
1088         return rc;
1089 }
1090
1091 static int qeth_l3_default_setassparms_cb(struct qeth_card *card,
1092                         struct qeth_reply *reply, unsigned long data)
1093 {
1094         struct qeth_ipa_cmd *cmd;
1095
1096         QETH_DBF_TEXT(TRACE, 4, "defadpcb");
1097
1098         cmd = (struct qeth_ipa_cmd *) data;
1099         if (cmd->hdr.return_code == 0) {
1100                 cmd->hdr.return_code = cmd->data.setassparms.hdr.return_code;
1101                 if (cmd->hdr.prot_version == QETH_PROT_IPV4)
1102                         card->options.ipa4.enabled_funcs = cmd->hdr.ipa_enabled;
1103                 if (cmd->hdr.prot_version == QETH_PROT_IPV6)
1104                         card->options.ipa6.enabled_funcs = cmd->hdr.ipa_enabled;
1105         }
1106         if (cmd->data.setassparms.hdr.assist_no == IPA_INBOUND_CHECKSUM &&
1107             cmd->data.setassparms.hdr.command_code == IPA_CMD_ASS_START) {
1108                 card->info.csum_mask = cmd->data.setassparms.data.flags_32bit;
1109                 QETH_DBF_TEXT_(TRACE, 3, "csum:%d", card->info.csum_mask);
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_DBF_TEXT(TRACE, 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_DBF_TEXT(TRACE, 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_DBF_TEXT(TRACE, 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_DBF_TEXT(TRACE, 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_DBF_TEXT(TRACE, 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_DBF_TEXT(TRACE, 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_DBF_TEXT(TRACE, 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_DBF_TEXT(TRACE, 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_DBF_TEXT(TRACE, 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_DBF_TEXT(TRACE, 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_DBF_TEXT(TRACE, 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_DBF_TEXT(TRACE, 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_DBF_TEXT(TRACE, 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_tso(struct qeth_card *card)
1540 {
1541         int rc;
1542
1543         QETH_DBF_TEXT(TRACE, 3, "sttso");
1544
1545         if (!qeth_is_supported(card, IPA_OUTBOUND_TSO)) {
1546                 dev_info(&card->gdev->dev,
1547                         "Outbound TSO not supported on %s\n",
1548                         QETH_CARD_IFNAME(card));
1549                 rc = -EOPNOTSUPP;
1550         } else {
1551                 rc = qeth_l3_send_simple_setassparms(card, IPA_OUTBOUND_TSO,
1552                                                 IPA_CMD_ASS_START, 0);
1553                 if (rc)
1554                         dev_warn(&card->gdev->dev, "Starting outbound TCP "
1555                                 "segmentation offload for %s failed\n",
1556                                 QETH_CARD_IFNAME(card));
1557                 else
1558                         dev_info(&card->gdev->dev,
1559                                 "Outbound TSO enabled\n");
1560         }
1561         if (rc && (card->options.large_send == QETH_LARGE_SEND_TSO)) {
1562                 card->options.large_send = QETH_LARGE_SEND_NO;
1563                 card->dev->features &= ~(NETIF_F_TSO | NETIF_F_SG);
1564         }
1565         return rc;
1566 }
1567
1568 static int qeth_l3_start_ipassists(struct qeth_card *card)
1569 {
1570         QETH_DBF_TEXT(TRACE, 3, "strtipas");
1571
1572         qeth_set_access_ctrl_online(card);      /* go on*/
1573         qeth_l3_start_ipa_arp_processing(card); /* go on*/
1574         qeth_l3_start_ipa_ip_fragmentation(card);       /* go on*/
1575         qeth_l3_start_ipa_source_mac(card);     /* go on*/
1576         qeth_l3_start_ipa_vlan(card);           /* go on*/
1577         qeth_l3_start_ipa_multicast(card);              /* go on*/
1578         qeth_l3_start_ipa_ipv6(card);           /* go on*/
1579         qeth_l3_start_ipa_broadcast(card);              /* go on*/
1580         qeth_l3_start_ipa_checksum(card);               /* go on*/
1581         qeth_l3_start_ipa_tso(card);            /* go on*/
1582         return 0;
1583 }
1584
1585 static int qeth_l3_put_unique_id(struct qeth_card *card)
1586 {
1587
1588         int rc = 0;
1589         struct qeth_cmd_buffer *iob;
1590         struct qeth_ipa_cmd *cmd;
1591
1592         QETH_DBF_TEXT(TRACE, 2, "puniqeid");
1593
1594         if ((card->info.unique_id & UNIQUE_ID_NOT_BY_CARD) ==
1595                 UNIQUE_ID_NOT_BY_CARD)
1596                 return -1;
1597         iob = qeth_get_ipacmd_buffer(card, IPA_CMD_DESTROY_ADDR,
1598                                      QETH_PROT_IPV6);
1599         cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
1600         *((__u16 *) &cmd->data.create_destroy_addr.unique_id[6]) =
1601                                 card->info.unique_id;
1602         memcpy(&cmd->data.create_destroy_addr.unique_id[0],
1603                card->dev->dev_addr, OSA_ADDR_LEN);
1604         rc = qeth_send_ipa_cmd(card, iob, NULL, NULL);
1605         return rc;
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_DBF_TEXT_(TRACE, 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_DBF_TEXT(TRACE, 4, "addmc");
1774         for (im4 = in4_dev->mc_list; im4; im4 = im4->next) {
1775                 qeth_l3_get_mac_for_ipm(im4->multiaddr, buf, in4_dev->dev);
1776                 ipm = qeth_l3_get_addr_buffer(QETH_PROT_IPV4);
1777                 if (!ipm)
1778                         continue;
1779                 ipm->u.a4.addr = im4->multiaddr;
1780                 memcpy(ipm->mac, buf, OSA_ADDR_LEN);
1781                 ipm->is_multicast = 1;
1782                 if (!qeth_l3_add_ip(card, ipm))
1783                         kfree(ipm);
1784         }
1785 }
1786
1787 static void qeth_l3_add_vlan_mc(struct qeth_card *card)
1788 {
1789         struct in_device *in_dev;
1790         struct vlan_group *vg;
1791         int i;
1792
1793         QETH_DBF_TEXT(TRACE, 4, "addmcvl");
1794         if (!qeth_is_supported(card, IPA_FULL_VLAN) || (card->vlangrp == NULL))
1795                 return;
1796
1797         vg = card->vlangrp;
1798         for (i = 0; i < VLAN_GROUP_ARRAY_LEN; i++) {
1799                 struct net_device *netdev = vlan_group_get_device(vg, i);
1800                 if (netdev == NULL ||
1801                     !(netdev->flags & IFF_UP))
1802                         continue;
1803                 in_dev = in_dev_get(netdev);
1804                 if (!in_dev)
1805                         continue;
1806                 read_lock(&in_dev->mc_list_lock);
1807                 qeth_l3_add_mc(card, in_dev);
1808                 read_unlock(&in_dev->mc_list_lock);
1809                 in_dev_put(in_dev);
1810         }
1811 }
1812
1813 static void qeth_l3_add_multicast_ipv4(struct qeth_card *card)
1814 {
1815         struct in_device *in4_dev;
1816
1817         QETH_DBF_TEXT(TRACE, 4, "chkmcv4");
1818         in4_dev = in_dev_get(card->dev);
1819         if (in4_dev == NULL)
1820                 return;
1821         read_lock(&in4_dev->mc_list_lock);
1822         qeth_l3_add_mc(card, in4_dev);
1823         qeth_l3_add_vlan_mc(card);
1824         read_unlock(&in4_dev->mc_list_lock);
1825         in_dev_put(in4_dev);
1826 }
1827
1828 #ifdef CONFIG_QETH_IPV6
1829 static void qeth_l3_add_mc6(struct qeth_card *card, struct inet6_dev *in6_dev)
1830 {
1831         struct qeth_ipaddr *ipm;
1832         struct ifmcaddr6 *im6;
1833         char buf[MAX_ADDR_LEN];
1834
1835         QETH_DBF_TEXT(TRACE, 4, "addmc6");
1836         for (im6 = in6_dev->mc_list; im6 != NULL; im6 = im6->next) {
1837                 ndisc_mc_map(&im6->mca_addr, buf, in6_dev->dev, 0);
1838                 ipm = qeth_l3_get_addr_buffer(QETH_PROT_IPV6);
1839                 if (!ipm)
1840                         continue;
1841                 ipm->is_multicast = 1;
1842                 memcpy(ipm->mac, buf, OSA_ADDR_LEN);
1843                 memcpy(&ipm->u.a6.addr, &im6->mca_addr.s6_addr,
1844                        sizeof(struct in6_addr));
1845                 if (!qeth_l3_add_ip(card, ipm))
1846                         kfree(ipm);
1847         }
1848 }
1849
1850 static void qeth_l3_add_vlan_mc6(struct qeth_card *card)
1851 {
1852         struct inet6_dev *in_dev;
1853         struct vlan_group *vg;
1854         int i;
1855
1856         QETH_DBF_TEXT(TRACE, 4, "admc6vl");
1857         if (!qeth_is_supported(card, IPA_FULL_VLAN) || (card->vlangrp == NULL))
1858                 return;
1859
1860         vg = card->vlangrp;
1861         for (i = 0; i < VLAN_GROUP_ARRAY_LEN; i++) {
1862                 struct net_device *netdev = vlan_group_get_device(vg, i);
1863                 if (netdev == NULL ||
1864                     !(netdev->flags & IFF_UP))
1865                         continue;
1866                 in_dev = in6_dev_get(netdev);
1867                 if (!in_dev)
1868                         continue;
1869                 read_lock_bh(&in_dev->lock);
1870                 qeth_l3_add_mc6(card, in_dev);
1871                 read_unlock_bh(&in_dev->lock);
1872                 in6_dev_put(in_dev);
1873         }
1874 }
1875
1876 static void qeth_l3_add_multicast_ipv6(struct qeth_card *card)
1877 {
1878         struct inet6_dev *in6_dev;
1879
1880         QETH_DBF_TEXT(TRACE, 4, "chkmcv6");
1881         if (!qeth_is_supported(card, IPA_IPV6))
1882                 return ;
1883         in6_dev = in6_dev_get(card->dev);
1884         if (in6_dev == NULL)
1885                 return;
1886         read_lock_bh(&in6_dev->lock);
1887         qeth_l3_add_mc6(card, in6_dev);
1888         qeth_l3_add_vlan_mc6(card);
1889         read_unlock_bh(&in6_dev->lock);
1890         in6_dev_put(in6_dev);
1891 }
1892 #endif /* CONFIG_QETH_IPV6 */
1893
1894 static void qeth_l3_free_vlan_addresses4(struct qeth_card *card,
1895                         unsigned short vid)
1896 {
1897         struct in_device *in_dev;
1898         struct in_ifaddr *ifa;
1899         struct qeth_ipaddr *addr;
1900
1901         QETH_DBF_TEXT(TRACE, 4, "frvaddr4");
1902
1903         in_dev = in_dev_get(vlan_group_get_device(card->vlangrp, vid));
1904         if (!in_dev)
1905                 return;
1906         for (ifa = in_dev->ifa_list; ifa; ifa = ifa->ifa_next) {
1907                 addr = qeth_l3_get_addr_buffer(QETH_PROT_IPV4);
1908                 if (addr) {
1909                         addr->u.a4.addr = ifa->ifa_address;
1910                         addr->u.a4.mask = ifa->ifa_mask;
1911                         addr->type = QETH_IP_TYPE_NORMAL;
1912                         if (!qeth_l3_delete_ip(card, addr))
1913                                 kfree(addr);
1914                 }
1915         }
1916         in_dev_put(in_dev);
1917 }
1918
1919 static void qeth_l3_free_vlan_addresses6(struct qeth_card *card,
1920                         unsigned short vid)
1921 {
1922 #ifdef CONFIG_QETH_IPV6
1923         struct inet6_dev *in6_dev;
1924         struct inet6_ifaddr *ifa;
1925         struct qeth_ipaddr *addr;
1926
1927         QETH_DBF_TEXT(TRACE, 4, "frvaddr6");
1928
1929         in6_dev = in6_dev_get(vlan_group_get_device(card->vlangrp, vid));
1930         if (!in6_dev)
1931                 return;
1932         for (ifa = in6_dev->addr_list; ifa; ifa = ifa->lst_next) {
1933                 addr = qeth_l3_get_addr_buffer(QETH_PROT_IPV6);
1934                 if (addr) {
1935                         memcpy(&addr->u.a6.addr, &ifa->addr,
1936                                sizeof(struct in6_addr));
1937                         addr->u.a6.pfxlen = ifa->prefix_len;
1938                         addr->type = QETH_IP_TYPE_NORMAL;
1939                         if (!qeth_l3_delete_ip(card, addr))
1940                                 kfree(addr);
1941                 }
1942         }
1943         in6_dev_put(in6_dev);
1944 #endif /* CONFIG_QETH_IPV6 */
1945 }
1946
1947 static void qeth_l3_free_vlan_addresses(struct qeth_card *card,
1948                         unsigned short vid)
1949 {
1950         if (!card->vlangrp)
1951                 return;
1952         qeth_l3_free_vlan_addresses4(card, vid);
1953         qeth_l3_free_vlan_addresses6(card, vid);
1954 }
1955
1956 static void qeth_l3_vlan_rx_register(struct net_device *dev,
1957                         struct vlan_group *grp)
1958 {
1959         struct qeth_card *card = dev->ml_priv;
1960         unsigned long flags;
1961
1962         QETH_DBF_TEXT(TRACE, 4, "vlanreg");
1963         spin_lock_irqsave(&card->vlanlock, flags);
1964         card->vlangrp = grp;
1965         spin_unlock_irqrestore(&card->vlanlock, flags);
1966 }
1967
1968 static void qeth_l3_vlan_rx_add_vid(struct net_device *dev, unsigned short vid)
1969 {
1970         return;
1971 }
1972
1973 static void qeth_l3_vlan_rx_kill_vid(struct net_device *dev, unsigned short vid)
1974 {
1975         struct qeth_card *card = dev->ml_priv;
1976         unsigned long flags;
1977
1978         QETH_DBF_TEXT_(TRACE, 4, "kid:%d", vid);
1979         if (qeth_wait_for_threads(card, QETH_RECOVER_THREAD)) {
1980                 QETH_DBF_TEXT(TRACE, 3, "kidREC");
1981                 return;
1982         }
1983         spin_lock_irqsave(&card->vlanlock, flags);
1984         /* unregister IP addresses of vlan device */
1985         qeth_l3_free_vlan_addresses(card, vid);
1986         vlan_group_set_device(card->vlangrp, vid, NULL);
1987         spin_unlock_irqrestore(&card->vlanlock, flags);
1988         qeth_l3_set_multicast_list(card->dev);
1989 }
1990
1991 static inline __u16 qeth_l3_rebuild_skb(struct qeth_card *card,
1992                         struct sk_buff *skb, struct qeth_hdr *hdr)
1993 {
1994         unsigned short vlan_id = 0;
1995         __be16 prot;
1996         struct iphdr *ip_hdr;
1997         unsigned char tg_addr[MAX_ADDR_LEN];
1998
1999         if (!(hdr->hdr.l3.flags & QETH_HDR_PASSTHRU)) {
2000                 prot = htons((hdr->hdr.l3.flags & QETH_HDR_IPV6)? ETH_P_IPV6 :
2001                               ETH_P_IP);
2002                 switch (hdr->hdr.l3.flags & QETH_HDR_CAST_MASK) {
2003                 case QETH_CAST_MULTICAST:
2004                         switch (prot) {
2005 #ifdef CONFIG_QETH_IPV6
2006                         case __constant_htons(ETH_P_IPV6):
2007                                 ndisc_mc_map((struct in6_addr *)
2008                                      skb->data + 24,
2009                                      tg_addr, card->dev, 0);
2010                                 break;
2011 #endif
2012                         case __constant_htons(ETH_P_IP):
2013                                 ip_hdr = (struct iphdr *)skb->data;
2014                                 (card->dev->type == ARPHRD_IEEE802_TR) ?
2015                                 ip_tr_mc_map(ip_hdr->daddr, tg_addr):
2016                                 ip_eth_mc_map(ip_hdr->daddr, tg_addr);
2017                                 break;
2018                         default:
2019                                 memcpy(tg_addr, card->dev->broadcast,
2020                                         card->dev->addr_len);
2021                         }
2022                         card->stats.multicast++;
2023                         skb->pkt_type = PACKET_MULTICAST;
2024                         break;
2025                 case QETH_CAST_BROADCAST:
2026                         memcpy(tg_addr, card->dev->broadcast,
2027                                 card->dev->addr_len);
2028                         card->stats.multicast++;
2029                         skb->pkt_type = PACKET_BROADCAST;
2030                         break;
2031                 case QETH_CAST_UNICAST:
2032                 case QETH_CAST_ANYCAST:
2033                 case QETH_CAST_NOCAST:
2034                 default:
2035                         if (card->options.sniffer)
2036                                 skb->pkt_type = PACKET_OTHERHOST;
2037                         else
2038                                 skb->pkt_type = PACKET_HOST;
2039                         memcpy(tg_addr, card->dev->dev_addr,
2040                                 card->dev->addr_len);
2041                 }
2042                 if (hdr->hdr.l3.ext_flags & QETH_HDR_EXT_SRC_MAC_ADDR)
2043                         card->dev->header_ops->create(skb, card->dev, prot,
2044                                 tg_addr, &hdr->hdr.l3.dest_addr[2],
2045                                 card->dev->addr_len);
2046                 else
2047                         card->dev->header_ops->create(skb, card->dev, prot,
2048                                 tg_addr, "FAKELL", card->dev->addr_len);
2049         }
2050
2051 #ifdef CONFIG_TR
2052         if (card->dev->type == ARPHRD_IEEE802_TR)
2053                 skb->protocol = tr_type_trans(skb, card->dev);
2054         else
2055 #endif
2056                 skb->protocol = eth_type_trans(skb, card->dev);
2057
2058         if (hdr->hdr.l3.ext_flags &
2059             (QETH_HDR_EXT_VLAN_FRAME | QETH_HDR_EXT_INCLUDE_VLAN_TAG)) {
2060                 vlan_id = (hdr->hdr.l3.ext_flags & QETH_HDR_EXT_VLAN_FRAME)?
2061                  hdr->hdr.l3.vlan_id : *((u16 *)&hdr->hdr.l3.dest_addr[12]);
2062         }
2063
2064         switch (card->options.checksum_type) {
2065         case SW_CHECKSUMMING:
2066                 skb->ip_summed = CHECKSUM_NONE;
2067                 break;
2068         case NO_CHECKSUMMING:
2069                 skb->ip_summed = CHECKSUM_UNNECESSARY;
2070                 break;
2071         case HW_CHECKSUMMING:
2072                 if ((hdr->hdr.l3.ext_flags &
2073                     (QETH_HDR_EXT_CSUM_HDR_REQ |
2074                      QETH_HDR_EXT_CSUM_TRANSP_REQ)) ==
2075                     (QETH_HDR_EXT_CSUM_HDR_REQ |
2076                      QETH_HDR_EXT_CSUM_TRANSP_REQ))
2077                         skb->ip_summed = CHECKSUM_UNNECESSARY;
2078                 else
2079                         skb->ip_summed = CHECKSUM_NONE;
2080         }
2081
2082         return vlan_id;
2083 }
2084
2085 static void qeth_l3_process_inbound_buffer(struct qeth_card *card,
2086                             struct qeth_qdio_buffer *buf, int index)
2087 {
2088         struct qdio_buffer_element *element;
2089         struct sk_buff *skb;
2090         struct qeth_hdr *hdr;
2091         int offset;
2092         __u16 vlan_tag = 0;
2093         unsigned int len;
2094         /* get first element of current buffer */
2095         element = (struct qdio_buffer_element *)&buf->buffer->element[0];
2096         offset = 0;
2097         if (card->options.performance_stats)
2098                 card->perf_stats.bufs_rec++;
2099         while ((skb = qeth_core_get_next_skb(card, buf->buffer, &element,
2100                                        &offset, &hdr))) {
2101                 skb->dev = card->dev;
2102                 /* is device UP ? */
2103                 if (!(card->dev->flags & IFF_UP)) {
2104                         dev_kfree_skb_any(skb);
2105                         continue;
2106                 }
2107
2108                 switch (hdr->hdr.l3.id) {
2109                 case QETH_HEADER_TYPE_LAYER3:
2110                         vlan_tag = qeth_l3_rebuild_skb(card, skb, hdr);
2111                         len = skb->len;
2112                         if (vlan_tag && !card->options.sniffer)
2113                                 if (card->vlangrp)
2114                                         vlan_hwaccel_rx(skb, card->vlangrp,
2115                                                 vlan_tag);
2116                                 else {
2117                                         dev_kfree_skb_any(skb);
2118                                         continue;
2119                                 }
2120                         else
2121                                 netif_rx(skb);
2122                         break;
2123                 case QETH_HEADER_TYPE_LAYER2: /* for HiperSockets sniffer */
2124                         skb->pkt_type = PACKET_HOST;
2125                         skb->protocol = eth_type_trans(skb, skb->dev);
2126                         if (card->options.checksum_type == NO_CHECKSUMMING)
2127                                 skb->ip_summed = CHECKSUM_UNNECESSARY;
2128                         else
2129                                 skb->ip_summed = CHECKSUM_NONE;
2130                         len = skb->len;
2131                         netif_receive_skb(skb);
2132                         break;
2133                 default:
2134                         dev_kfree_skb_any(skb);
2135                         QETH_DBF_TEXT(TRACE, 3, "inbunkno");
2136                         QETH_DBF_HEX(CTRL, 3, hdr, QETH_DBF_CTRL_LEN);
2137                         continue;
2138                 }
2139
2140                 card->stats.rx_packets++;
2141                 card->stats.rx_bytes += len;
2142         }
2143 }
2144
2145 static int qeth_l3_verify_vlan_dev(struct net_device *dev,
2146                         struct qeth_card *card)
2147 {
2148         int rc = 0;
2149         struct vlan_group *vg;
2150         int i;
2151
2152         vg = card->vlangrp;
2153         if (!vg)
2154                 return rc;
2155
2156         for (i = 0; i < VLAN_GROUP_ARRAY_LEN; i++) {
2157                 if (vlan_group_get_device(vg, i) == dev) {
2158                         rc = QETH_VLAN_CARD;
2159                         break;
2160                 }
2161         }
2162
2163         if (rc && !(vlan_dev_real_dev(dev)->ml_priv == (void *)card))
2164                 return 0;
2165
2166         return rc;
2167 }
2168
2169 static int qeth_l3_verify_dev(struct net_device *dev)
2170 {
2171         struct qeth_card *card;
2172         unsigned long flags;
2173         int rc = 0;
2174
2175         read_lock_irqsave(&qeth_core_card_list.rwlock, flags);
2176         list_for_each_entry(card, &qeth_core_card_list.list, list) {
2177                 if (card->dev == dev) {
2178                         rc = QETH_REAL_CARD;
2179                         break;
2180                 }
2181                 rc = qeth_l3_verify_vlan_dev(dev, card);
2182                 if (rc)
2183                         break;
2184         }
2185         read_unlock_irqrestore(&qeth_core_card_list.rwlock, flags);
2186
2187         return rc;
2188 }
2189
2190 static struct qeth_card *qeth_l3_get_card_from_dev(struct net_device *dev)
2191 {
2192         struct qeth_card *card = NULL;
2193         int rc;
2194
2195         rc = qeth_l3_verify_dev(dev);
2196         if (rc == QETH_REAL_CARD)
2197                 card = dev->ml_priv;
2198         else if (rc == QETH_VLAN_CARD)
2199                 card = vlan_dev_real_dev(dev)->ml_priv;
2200         if (card && card->options.layer2)
2201                 card = NULL;
2202         QETH_DBF_TEXT_(TRACE, 4, "%d", rc);
2203         return card ;
2204 }
2205
2206 static int qeth_l3_stop_card(struct qeth_card *card, int recovery_mode)
2207 {
2208         int rc = 0;
2209
2210         QETH_DBF_TEXT(SETUP, 2, "stopcard");
2211         QETH_DBF_HEX(SETUP, 2, &card, sizeof(void *));
2212
2213         qeth_set_allowed_threads(card, 0, 1);
2214         if (card->options.sniffer &&
2215             (card->info.promisc_mode == SET_PROMISC_MODE_ON))
2216                 qeth_diags_trace(card, QETH_DIAGS_CMD_TRACE_DISABLE);
2217         if (card->read.state == CH_STATE_UP &&
2218             card->write.state == CH_STATE_UP &&
2219             (card->state == CARD_STATE_UP)) {
2220                 if (recovery_mode)
2221                         qeth_l3_stop(card->dev);
2222                 else {
2223                         rtnl_lock();
2224                         dev_close(card->dev);
2225                         rtnl_unlock();
2226                 }
2227                 if (!card->use_hard_stop) {
2228                         rc = qeth_send_stoplan(card);
2229                         if (rc)
2230                                 QETH_DBF_TEXT_(SETUP, 2, "1err%d", rc);
2231                 }
2232                 card->state = CARD_STATE_SOFTSETUP;
2233         }
2234         if (card->state == CARD_STATE_SOFTSETUP) {
2235                 qeth_l3_clear_ip_list(card, !card->use_hard_stop, 1);
2236                 qeth_clear_ipacmd_list(card);
2237                 card->state = CARD_STATE_HARDSETUP;
2238         }
2239         if (card->state == CARD_STATE_HARDSETUP) {
2240                 if (!card->use_hard_stop &&
2241                     (card->info.type != QETH_CARD_TYPE_IQD)) {
2242                         rc = qeth_l3_put_unique_id(card);
2243                         if (rc)
2244                                 QETH_DBF_TEXT_(SETUP, 2, "2err%d", rc);
2245                 }
2246                 qeth_qdio_clear_card(card, 0);
2247                 qeth_clear_qdio_buffers(card);
2248                 qeth_clear_working_pool_list(card);
2249                 card->state = CARD_STATE_DOWN;
2250         }
2251         if (card->state == CARD_STATE_DOWN) {
2252                 qeth_clear_cmd_buffers(&card->read);
2253                 qeth_clear_cmd_buffers(&card->write);
2254         }
2255         card->use_hard_stop = 0;
2256         return rc;
2257 }
2258
2259 /*
2260  * test for and Switch promiscuous mode (on or off)
2261  *  either for guestlan or HiperSocket Sniffer
2262  */
2263 static void
2264 qeth_l3_handle_promisc_mode(struct qeth_card *card)
2265 {
2266         struct net_device *dev = card->dev;
2267
2268         if (((dev->flags & IFF_PROMISC) &&
2269              (card->info.promisc_mode == SET_PROMISC_MODE_ON)) ||
2270             (!(dev->flags & IFF_PROMISC) &&
2271              (card->info.promisc_mode == SET_PROMISC_MODE_OFF)))
2272                 return;
2273
2274         if (card->info.guestlan) {              /* Guestlan trace */
2275                 if (qeth_adp_supported(card, IPA_SETADP_SET_PROMISC_MODE))
2276                         qeth_setadp_promisc_mode(card);
2277         } else if (card->options.sniffer &&     /* HiperSockets trace */
2278                    qeth_adp_supported(card, IPA_SETADP_SET_DIAG_ASSIST)) {
2279                 if (dev->flags & IFF_PROMISC) {
2280                         QETH_DBF_TEXT(TRACE, 3, "+promisc");
2281                         qeth_diags_trace(card, QETH_DIAGS_CMD_TRACE_ENABLE);
2282                 } else {
2283                         QETH_DBF_TEXT(TRACE, 3, "-promisc");
2284                         qeth_diags_trace(card, QETH_DIAGS_CMD_TRACE_DISABLE);
2285                 }
2286         }
2287 }
2288
2289 static void qeth_l3_set_multicast_list(struct net_device *dev)
2290 {
2291         struct qeth_card *card = dev->ml_priv;
2292
2293         QETH_DBF_TEXT(TRACE, 3, "setmulti");
2294         if (qeth_threads_running(card, QETH_RECOVER_THREAD) &&
2295             (card->state != CARD_STATE_UP))
2296                 return;
2297         if (!card->options.sniffer) {
2298                 qeth_l3_delete_mc_addresses(card);
2299                 qeth_l3_add_multicast_ipv4(card);
2300 #ifdef CONFIG_QETH_IPV6
2301                 qeth_l3_add_multicast_ipv6(card);
2302 #endif
2303                 qeth_l3_set_ip_addr_list(card);
2304                 if (!qeth_adp_supported(card, IPA_SETADP_SET_PROMISC_MODE))
2305                         return;
2306         }
2307         qeth_l3_handle_promisc_mode(card);
2308 }
2309
2310 static const char *qeth_l3_arp_get_error_cause(int *rc)
2311 {
2312         switch (*rc) {
2313         case QETH_IPA_ARP_RC_FAILED:
2314                 *rc = -EIO;
2315                 return "operation failed";
2316         case QETH_IPA_ARP_RC_NOTSUPP:
2317                 *rc = -EOPNOTSUPP;
2318                 return "operation not supported";
2319         case QETH_IPA_ARP_RC_OUT_OF_RANGE:
2320                 *rc = -EINVAL;
2321                 return "argument out of range";
2322         case QETH_IPA_ARP_RC_Q_NOTSUPP:
2323                 *rc = -EOPNOTSUPP;
2324                 return "query operation not supported";
2325         case QETH_IPA_ARP_RC_Q_NO_DATA:
2326                 *rc = -ENOENT;
2327                 return "no query data available";
2328         default:
2329                 return "unknown error";
2330         }
2331 }
2332
2333 static int qeth_l3_arp_set_no_entries(struct qeth_card *card, int no_entries)
2334 {
2335         int tmp;
2336         int rc;
2337
2338         QETH_DBF_TEXT(TRACE, 3, "arpstnoe");
2339
2340         /*
2341          * currently GuestLAN only supports the ARP assist function
2342          * IPA_CMD_ASS_ARP_QUERY_INFO, but not IPA_CMD_ASS_ARP_SET_NO_ENTRIES;
2343          * thus we say EOPNOTSUPP for this ARP function
2344          */
2345         if (card->info.guestlan)
2346                 return -EOPNOTSUPP;
2347         if (!qeth_is_supported(card, IPA_ARP_PROCESSING)) {
2348                 return -EOPNOTSUPP;
2349         }
2350         rc = qeth_l3_send_simple_setassparms(card, IPA_ARP_PROCESSING,
2351                                           IPA_CMD_ASS_ARP_SET_NO_ENTRIES,
2352                                           no_entries);
2353         if (rc) {
2354                 tmp = rc;
2355                 QETH_DBF_MESSAGE(2, "Could not set number of ARP entries on "
2356                         "%s: %s (0x%x/%d)\n", QETH_CARD_IFNAME(card),
2357                         qeth_l3_arp_get_error_cause(&rc), tmp, tmp);
2358         }
2359         return rc;
2360 }
2361
2362 static void qeth_l3_copy_arp_entries_stripped(struct qeth_arp_query_info *qinfo,
2363                 struct qeth_arp_query_data *qdata, int entry_size,
2364                 int uentry_size)
2365 {
2366         char *entry_ptr;
2367         char *uentry_ptr;
2368         int i;
2369
2370         entry_ptr = (char *)&qdata->data;
2371         uentry_ptr = (char *)(qinfo->udata + qinfo->udata_offset);
2372         for (i = 0; i < qdata->no_entries; ++i) {
2373                 /* strip off 32 bytes "media specific information" */
2374                 memcpy(uentry_ptr, (entry_ptr + 32), entry_size - 32);
2375                 entry_ptr += entry_size;
2376                 uentry_ptr += uentry_size;
2377         }
2378 }
2379
2380 static int qeth_l3_arp_query_cb(struct qeth_card *card,
2381                 struct qeth_reply *reply, unsigned long data)
2382 {
2383         struct qeth_ipa_cmd *cmd;
2384         struct qeth_arp_query_data *qdata;
2385         struct qeth_arp_query_info *qinfo;
2386         int entry_size;
2387         int uentry_size;
2388         int i;
2389
2390         QETH_DBF_TEXT(TRACE, 4, "arpquecb");
2391
2392         qinfo = (struct qeth_arp_query_info *) reply->param;
2393         cmd = (struct qeth_ipa_cmd *) data;
2394         if (cmd->hdr.return_code) {
2395                 QETH_DBF_TEXT_(TRACE, 4, "qaer1%i", cmd->hdr.return_code);
2396                 return 0;
2397         }
2398         if (cmd->data.setassparms.hdr.return_code) {
2399                 cmd->hdr.return_code = cmd->data.setassparms.hdr.return_code;
2400                 QETH_DBF_TEXT_(TRACE, 4, "qaer2%i", cmd->hdr.return_code);
2401                 return 0;
2402         }
2403         qdata = &cmd->data.setassparms.data.query_arp;
2404         switch (qdata->reply_bits) {
2405         case 5:
2406                 uentry_size = entry_size = sizeof(struct qeth_arp_qi_entry5);
2407                 if (qinfo->mask_bits & QETH_QARP_STRIP_ENTRIES)
2408                         uentry_size = sizeof(struct qeth_arp_qi_entry5_short);
2409                 break;
2410         case 7:
2411                 /* fall through to default */
2412         default:
2413                 /* tr is the same as eth -> entry7 */
2414                 uentry_size = entry_size = sizeof(struct qeth_arp_qi_entry7);
2415                 if (qinfo->mask_bits & QETH_QARP_STRIP_ENTRIES)
2416                         uentry_size = sizeof(struct qeth_arp_qi_entry7_short);
2417                 break;
2418         }
2419         /* check if there is enough room in userspace */
2420         if ((qinfo->udata_len - qinfo->udata_offset) <
2421                         qdata->no_entries * uentry_size){
2422                 QETH_DBF_TEXT_(TRACE, 4, "qaer3%i", -ENOMEM);
2423                 cmd->hdr.return_code = -ENOMEM;
2424                 goto out_error;
2425         }
2426         QETH_DBF_TEXT_(TRACE, 4, "anore%i",
2427                        cmd->data.setassparms.hdr.number_of_replies);
2428         QETH_DBF_TEXT_(TRACE, 4, "aseqn%i", cmd->data.setassparms.hdr.seq_no);
2429         QETH_DBF_TEXT_(TRACE, 4, "anoen%i", qdata->no_entries);
2430
2431         if (qinfo->mask_bits & QETH_QARP_STRIP_ENTRIES) {
2432                 /* strip off "media specific information" */
2433                 qeth_l3_copy_arp_entries_stripped(qinfo, qdata, entry_size,
2434                                                uentry_size);
2435         } else
2436                 /*copy entries to user buffer*/
2437                 memcpy(qinfo->udata + qinfo->udata_offset,
2438                        (char *)&qdata->data, qdata->no_entries*uentry_size);
2439
2440         qinfo->no_entries += qdata->no_entries;
2441         qinfo->udata_offset += (qdata->no_entries*uentry_size);
2442         /* check if all replies received ... */
2443         if (cmd->data.setassparms.hdr.seq_no <
2444             cmd->data.setassparms.hdr.number_of_replies)
2445                 return 1;
2446         memcpy(qinfo->udata, &qinfo->no_entries, 4);
2447         /* keep STRIP_ENTRIES flag so the user program can distinguish
2448          * stripped entries from normal ones */
2449         if (qinfo->mask_bits & QETH_QARP_STRIP_ENTRIES)
2450                 qdata->reply_bits |= QETH_QARP_STRIP_ENTRIES;
2451         memcpy(qinfo->udata + QETH_QARP_MASK_OFFSET, &qdata->reply_bits, 2);
2452         return 0;
2453 out_error:
2454         i = 0;
2455         memcpy(qinfo->udata, &i, 4);
2456         return 0;
2457 }
2458
2459 static int qeth_l3_send_ipa_arp_cmd(struct qeth_card *card,
2460                 struct qeth_cmd_buffer *iob, int len,
2461                 int (*reply_cb)(struct qeth_card *, struct qeth_reply *,
2462                         unsigned long),
2463                 void *reply_param)
2464 {
2465         QETH_DBF_TEXT(TRACE, 4, "sendarp");
2466
2467         memcpy(iob->data, IPA_PDU_HEADER, IPA_PDU_HEADER_SIZE);
2468         memcpy(QETH_IPA_CMD_DEST_ADDR(iob->data),
2469                &card->token.ulp_connection_r, QETH_MPC_TOKEN_LENGTH);
2470         return qeth_send_control_data(card, IPA_PDU_HEADER_SIZE + len, iob,
2471                                       reply_cb, reply_param);
2472 }
2473
2474 static int qeth_l3_arp_query(struct qeth_card *card, char __user *udata)
2475 {
2476         struct qeth_cmd_buffer *iob;
2477         struct qeth_arp_query_info qinfo = {0, };
2478         int tmp;
2479         int rc;
2480
2481         QETH_DBF_TEXT(TRACE, 3, "arpquery");
2482
2483         if (!qeth_is_supported(card,/*IPA_QUERY_ARP_ADDR_INFO*/
2484                                IPA_ARP_PROCESSING)) {
2485                 return -EOPNOTSUPP;
2486         }
2487         /* get size of userspace buffer and mask_bits -> 6 bytes */
2488         if (copy_from_user(&qinfo, udata, 6))
2489                 return -EFAULT;
2490         qinfo.udata = kzalloc(qinfo.udata_len, GFP_KERNEL);
2491         if (!qinfo.udata)
2492                 return -ENOMEM;
2493         qinfo.udata_offset = QETH_QARP_ENTRIES_OFFSET;
2494         iob = qeth_l3_get_setassparms_cmd(card, IPA_ARP_PROCESSING,
2495                                        IPA_CMD_ASS_ARP_QUERY_INFO,
2496                                        sizeof(int), QETH_PROT_IPV4);
2497
2498         rc = qeth_l3_send_ipa_arp_cmd(card, iob,
2499                                    QETH_SETASS_BASE_LEN+QETH_ARP_CMD_LEN,
2500                                    qeth_l3_arp_query_cb, (void *)&qinfo);
2501         if (rc) {
2502                 tmp = rc;
2503                 QETH_DBF_MESSAGE(2, "Error while querying ARP cache on %s: %s "
2504                         "(0x%x/%d)\n", QETH_CARD_IFNAME(card),
2505                         qeth_l3_arp_get_error_cause(&rc), tmp, tmp);
2506                 if (copy_to_user(udata, qinfo.udata, 4))
2507                         rc = -EFAULT;
2508         } else {
2509                 if (copy_to_user(udata, qinfo.udata, qinfo.udata_len))
2510                         rc = -EFAULT;
2511         }
2512         kfree(qinfo.udata);
2513         return rc;
2514 }
2515
2516 static int qeth_l3_arp_add_entry(struct qeth_card *card,
2517                                 struct qeth_arp_cache_entry *entry)
2518 {
2519         struct qeth_cmd_buffer *iob;
2520         char buf[16];
2521         int tmp;
2522         int rc;
2523
2524         QETH_DBF_TEXT(TRACE, 3, "arpadent");
2525
2526         /*
2527          * currently GuestLAN only supports the ARP assist function
2528          * IPA_CMD_ASS_ARP_QUERY_INFO, but not IPA_CMD_ASS_ARP_ADD_ENTRY;
2529          * thus we say EOPNOTSUPP for this ARP function
2530          */
2531         if (card->info.guestlan)
2532                 return -EOPNOTSUPP;
2533         if (!qeth_is_supported(card, IPA_ARP_PROCESSING)) {
2534                 return -EOPNOTSUPP;
2535         }
2536
2537         iob = qeth_l3_get_setassparms_cmd(card, IPA_ARP_PROCESSING,
2538                                        IPA_CMD_ASS_ARP_ADD_ENTRY,
2539                                        sizeof(struct qeth_arp_cache_entry),
2540                                        QETH_PROT_IPV4);
2541         rc = qeth_l3_send_setassparms(card, iob,
2542                                    sizeof(struct qeth_arp_cache_entry),
2543                                    (unsigned long) entry,
2544                                    qeth_l3_default_setassparms_cb, NULL);
2545         if (rc) {
2546                 tmp = rc;
2547                 qeth_l3_ipaddr4_to_string((u8 *)entry->ipaddr, buf);
2548                 QETH_DBF_MESSAGE(2, "Could not add ARP entry for address %s "
2549                         "on %s: %s (0x%x/%d)\n", buf, QETH_CARD_IFNAME(card),
2550                         qeth_l3_arp_get_error_cause(&rc), tmp, tmp);
2551         }
2552         return rc;
2553 }
2554
2555 static int qeth_l3_arp_remove_entry(struct qeth_card *card,
2556                                 struct qeth_arp_cache_entry *entry)
2557 {
2558         struct qeth_cmd_buffer *iob;
2559         char buf[16] = {0, };
2560         int tmp;
2561         int rc;
2562
2563         QETH_DBF_TEXT(TRACE, 3, "arprment");
2564
2565         /*
2566          * currently GuestLAN only supports the ARP assist function
2567          * IPA_CMD_ASS_ARP_QUERY_INFO, but not IPA_CMD_ASS_ARP_REMOVE_ENTRY;
2568          * thus we say EOPNOTSUPP for this ARP function
2569          */
2570         if (card->info.guestlan)
2571                 return -EOPNOTSUPP;
2572         if (!qeth_is_supported(card, IPA_ARP_PROCESSING)) {
2573                 return -EOPNOTSUPP;
2574         }
2575         memcpy(buf, entry, 12);
2576         iob = qeth_l3_get_setassparms_cmd(card, IPA_ARP_PROCESSING,
2577                                        IPA_CMD_ASS_ARP_REMOVE_ENTRY,
2578                                        12,
2579                                        QETH_PROT_IPV4);
2580         rc = qeth_l3_send_setassparms(card, iob,
2581                                    12, (unsigned long)buf,
2582                                    qeth_l3_default_setassparms_cb, NULL);
2583         if (rc) {
2584                 tmp = rc;
2585                 memset(buf, 0, 16);
2586                 qeth_l3_ipaddr4_to_string((u8 *)entry->ipaddr, buf);
2587                 QETH_DBF_MESSAGE(2, "Could not delete ARP entry for address %s"
2588                         " on %s: %s (0x%x/%d)\n", buf, QETH_CARD_IFNAME(card),
2589                         qeth_l3_arp_get_error_cause(&rc), tmp, tmp);
2590         }
2591         return rc;
2592 }
2593
2594 static int qeth_l3_arp_flush_cache(struct qeth_card *card)
2595 {
2596         int rc;
2597         int tmp;
2598
2599         QETH_DBF_TEXT(TRACE, 3, "arpflush");
2600
2601         /*
2602          * currently GuestLAN only supports the ARP assist function
2603          * IPA_CMD_ASS_ARP_QUERY_INFO, but not IPA_CMD_ASS_ARP_FLUSH_CACHE;
2604          * thus we say EOPNOTSUPP for this ARP function
2605         */
2606         if (card->info.guestlan || (card->info.type == QETH_CARD_TYPE_IQD))
2607                 return -EOPNOTSUPP;
2608         if (!qeth_is_supported(card, IPA_ARP_PROCESSING)) {
2609                 return -EOPNOTSUPP;
2610         }
2611         rc = qeth_l3_send_simple_setassparms(card, IPA_ARP_PROCESSING,
2612                                           IPA_CMD_ASS_ARP_FLUSH_CACHE, 0);
2613         if (rc) {
2614                 tmp = rc;
2615                 QETH_DBF_MESSAGE(2, "Could not flush ARP cache on %s: %s "
2616                         "(0x%x/%d)\n", QETH_CARD_IFNAME(card),
2617                         qeth_l3_arp_get_error_cause(&rc), tmp, tmp);
2618         }
2619         return rc;
2620 }
2621
2622 static int qeth_l3_do_ioctl(struct net_device *dev, struct ifreq *rq, int cmd)
2623 {
2624         struct qeth_card *card = dev->ml_priv;
2625         struct qeth_arp_cache_entry arp_entry;
2626         struct mii_ioctl_data *mii_data;
2627         int rc = 0;
2628
2629         if (!card)
2630                 return -ENODEV;
2631
2632         if ((card->state != CARD_STATE_UP) &&
2633                 (card->state != CARD_STATE_SOFTSETUP))
2634                 return -ENODEV;
2635
2636         switch (cmd) {
2637         case SIOC_QETH_ARP_SET_NO_ENTRIES:
2638                 if (!capable(CAP_NET_ADMIN)) {
2639                         rc = -EPERM;
2640                         break;
2641                 }
2642                 rc = qeth_l3_arp_set_no_entries(card, rq->ifr_ifru.ifru_ivalue);
2643                 break;
2644         case SIOC_QETH_ARP_QUERY_INFO:
2645                 if (!capable(CAP_NET_ADMIN)) {
2646                         rc = -EPERM;
2647                         break;
2648                 }
2649                 rc = qeth_l3_arp_query(card, rq->ifr_ifru.ifru_data);
2650                 break;
2651         case SIOC_QETH_ARP_ADD_ENTRY:
2652                 if (!capable(CAP_NET_ADMIN)) {
2653                         rc = -EPERM;
2654                         break;
2655                 }
2656                 if (copy_from_user(&arp_entry, rq->ifr_ifru.ifru_data,
2657                                    sizeof(struct qeth_arp_cache_entry)))
2658                         rc = -EFAULT;
2659                 else
2660                         rc = qeth_l3_arp_add_entry(card, &arp_entry);
2661                 break;
2662         case SIOC_QETH_ARP_REMOVE_ENTRY:
2663                 if (!capable(CAP_NET_ADMIN)) {
2664                         rc = -EPERM;
2665                         break;
2666                 }
2667                 if (copy_from_user(&arp_entry, rq->ifr_ifru.ifru_data,
2668                                    sizeof(struct qeth_arp_cache_entry)))
2669                         rc = -EFAULT;
2670                 else
2671                         rc = qeth_l3_arp_remove_entry(card, &arp_entry);
2672                 break;
2673         case SIOC_QETH_ARP_FLUSH_CACHE:
2674                 if (!capable(CAP_NET_ADMIN)) {
2675                         rc = -EPERM;
2676                         break;
2677                 }
2678                 rc = qeth_l3_arp_flush_cache(card);
2679                 break;
2680         case SIOC_QETH_ADP_SET_SNMP_CONTROL:
2681                 rc = qeth_snmp_command(card, rq->ifr_ifru.ifru_data);
2682                 break;
2683         case SIOC_QETH_GET_CARD_TYPE:
2684                 if ((card->info.type == QETH_CARD_TYPE_OSAE) &&
2685                     !card->info.guestlan)
2686                         return 1;
2687                 return 0;
2688                 break;
2689         case SIOCGMIIPHY:
2690                 mii_data = if_mii(rq);
2691                 mii_data->phy_id = 0;
2692                 break;
2693         case SIOCGMIIREG:
2694                 mii_data = if_mii(rq);
2695                 if (mii_data->phy_id != 0)
2696                         rc = -EINVAL;
2697                 else
2698                         mii_data->val_out = qeth_mdio_read(dev,
2699                                                         mii_data->phy_id,
2700                                                         mii_data->reg_num);
2701                 break;
2702         default:
2703                 rc = -EOPNOTSUPP;
2704         }
2705         if (rc)
2706                 QETH_DBF_TEXT_(TRACE, 2, "ioce%d", rc);
2707         return rc;
2708 }
2709
2710 int inline qeth_l3_get_cast_type(struct qeth_card *card, struct sk_buff *skb)
2711 {
2712         int cast_type = RTN_UNSPEC;
2713
2714         if (skb_dst(skb) && skb_dst(skb)->neighbour) {
2715                 cast_type = skb_dst(skb)->neighbour->type;
2716                 if ((cast_type == RTN_BROADCAST) ||
2717                     (cast_type == RTN_MULTICAST) ||
2718                     (cast_type == RTN_ANYCAST))
2719                         return cast_type;
2720                 else
2721                         return RTN_UNSPEC;
2722         }
2723         /* try something else */
2724         if (skb->protocol == ETH_P_IPV6)
2725                 return (skb_network_header(skb)[24] == 0xff) ?
2726                                 RTN_MULTICAST : 0;
2727         else if (skb->protocol == ETH_P_IP)
2728                 return ((skb_network_header(skb)[16] & 0xf0) == 0xe0) ?
2729                                 RTN_MULTICAST : 0;
2730         /* ... */
2731         if (!memcmp(skb->data, skb->dev->broadcast, 6))
2732                 return RTN_BROADCAST;
2733         else {
2734                 u16 hdr_mac;
2735
2736                 hdr_mac = *((u16 *)skb->data);
2737                 /* tr multicast? */
2738                 switch (card->info.link_type) {
2739                 case QETH_LINK_TYPE_HSTR:
2740                 case QETH_LINK_TYPE_LANE_TR:
2741                         if ((hdr_mac == QETH_TR_MAC_NC) ||
2742                             (hdr_mac == QETH_TR_MAC_C))
2743                                 return RTN_MULTICAST;
2744                         break;
2745                 /* eth or so multicast? */
2746                 default:
2747                 if ((hdr_mac == QETH_ETH_MAC_V4) ||
2748                             (hdr_mac == QETH_ETH_MAC_V6))
2749                                 return RTN_MULTICAST;
2750                 }
2751         }
2752         return cast_type;
2753 }
2754
2755 static void qeth_l3_fill_header(struct qeth_card *card, struct qeth_hdr *hdr,
2756                 struct sk_buff *skb, int ipv, int cast_type)
2757 {
2758         memset(hdr, 0, sizeof(struct qeth_hdr));
2759         hdr->hdr.l3.id = QETH_HEADER_TYPE_LAYER3;
2760         hdr->hdr.l3.ext_flags = 0;
2761
2762         /*
2763          * before we're going to overwrite this location with next hop ip.
2764          * v6 uses passthrough, v4 sets the tag in the QDIO header.
2765          */
2766         if (card->vlangrp && vlan_tx_tag_present(skb)) {
2767                 if ((ipv == 4) || (card->info.type == QETH_CARD_TYPE_IQD))
2768                         hdr->hdr.l3.ext_flags = QETH_HDR_EXT_VLAN_FRAME;
2769                 else
2770                         hdr->hdr.l3.ext_flags = QETH_HDR_EXT_INCLUDE_VLAN_TAG;
2771                 hdr->hdr.l3.vlan_id = vlan_tx_tag_get(skb);
2772         }
2773
2774         hdr->hdr.l3.length = skb->len - sizeof(struct qeth_hdr);
2775         if (ipv == 4) {
2776                 /* IPv4 */
2777                 hdr->hdr.l3.flags = qeth_l3_get_qeth_hdr_flags4(cast_type);
2778                 memset(hdr->hdr.l3.dest_addr, 0, 12);
2779                 if ((skb_dst(skb)) && (skb_dst(skb)->neighbour)) {
2780                         *((u32 *) (&hdr->hdr.l3.dest_addr[12])) =
2781                             *((u32 *) skb_dst(skb)->neighbour->primary_key);
2782                 } else {
2783                         /* fill in destination address used in ip header */
2784                         *((u32 *) (&hdr->hdr.l3.dest_addr[12])) =
2785                                                         ip_hdr(skb)->daddr;
2786                 }
2787         } else if (ipv == 6) {
2788                 /* IPv6 */
2789                 hdr->hdr.l3.flags = qeth_l3_get_qeth_hdr_flags6(cast_type);
2790                 if (card->info.type == QETH_CARD_TYPE_IQD)
2791                         hdr->hdr.l3.flags &= ~QETH_HDR_PASSTHRU;
2792                 if ((skb_dst(skb)) && (skb_dst(skb)->neighbour)) {
2793                         memcpy(hdr->hdr.l3.dest_addr,
2794                                skb_dst(skb)->neighbour->primary_key, 16);
2795                 } else {
2796                         /* fill in destination address used in ip header */
2797                         memcpy(hdr->hdr.l3.dest_addr,
2798                                &ipv6_hdr(skb)->daddr, 16);
2799                 }
2800         } else {
2801                 /* passthrough */
2802                 if ((skb->dev->type == ARPHRD_IEEE802_TR) &&
2803                         !memcmp(skb->data + sizeof(struct qeth_hdr) +
2804                         sizeof(__u16), skb->dev->broadcast, 6)) {
2805                         hdr->hdr.l3.flags = QETH_CAST_BROADCAST |
2806                                                 QETH_HDR_PASSTHRU;
2807                 } else if (!memcmp(skb->data + sizeof(struct qeth_hdr),
2808                             skb->dev->broadcast, 6)) {
2809                         /* broadcast? */
2810                         hdr->hdr.l3.flags = QETH_CAST_BROADCAST |
2811                                                 QETH_HDR_PASSTHRU;
2812                 } else {
2813                         hdr->hdr.l3.flags = (cast_type == RTN_MULTICAST) ?
2814                                 QETH_CAST_MULTICAST | QETH_HDR_PASSTHRU :
2815                                 QETH_CAST_UNICAST | QETH_HDR_PASSTHRU;
2816                 }
2817         }
2818 }
2819
2820 static void qeth_tso_fill_header(struct qeth_card *card,
2821                 struct qeth_hdr *qhdr, struct sk_buff *skb)
2822 {
2823         struct qeth_hdr_tso *hdr = (struct qeth_hdr_tso *)qhdr;
2824         struct tcphdr *tcph = tcp_hdr(skb);
2825         struct iphdr *iph = ip_hdr(skb);
2826         struct ipv6hdr *ip6h = ipv6_hdr(skb);
2827
2828         /*fix header to TSO values ...*/
2829         hdr->hdr.hdr.l3.id = QETH_HEADER_TYPE_TSO;
2830         /*set values which are fix for the first approach ...*/
2831         hdr->ext.hdr_tot_len = (__u16) sizeof(struct qeth_hdr_ext_tso);
2832         hdr->ext.imb_hdr_no  = 1;
2833         hdr->ext.hdr_type    = 1;
2834         hdr->ext.hdr_version = 1;
2835         hdr->ext.hdr_len     = 28;
2836         /*insert non-fix values */
2837         hdr->ext.mss = skb_shinfo(skb)->gso_size;
2838         hdr->ext.dg_hdr_len = (__u16)(iph->ihl*4 + tcph->doff*4);
2839         hdr->ext.payload_len = (__u16)(skb->len - hdr->ext.dg_hdr_len -
2840                                        sizeof(struct qeth_hdr_tso));
2841         tcph->check = 0;
2842         if (skb->protocol == ETH_P_IPV6) {
2843                 ip6h->payload_len = 0;
2844                 tcph->check = ~csum_ipv6_magic(&ip6h->saddr, &ip6h->daddr,
2845                                                0, IPPROTO_TCP, 0);
2846         } else {
2847                 /*OSA want us to set these values ...*/
2848                 tcph->check = ~csum_tcpudp_magic(iph->saddr, iph->daddr,
2849                                          0, IPPROTO_TCP, 0);
2850                 iph->tot_len = 0;
2851                 iph->check = 0;
2852         }
2853 }
2854
2855 static void qeth_tx_csum(struct sk_buff *skb)
2856 {
2857         __wsum csum;
2858         int offset;
2859
2860         skb_set_transport_header(skb, skb->csum_start - skb_headroom(skb));
2861         offset = skb->csum_start - skb_headroom(skb);
2862         BUG_ON(offset >= skb_headlen(skb));
2863         csum = skb_checksum(skb, offset, skb->len - offset, 0);
2864
2865         offset += skb->csum_offset;
2866         BUG_ON(offset + sizeof(__sum16) > skb_headlen(skb));
2867         *(__sum16 *)(skb->data + offset) = csum_fold(csum);
2868 }
2869
2870 static inline int qeth_l3_tso_elements(struct sk_buff *skb)
2871 {
2872         unsigned long tcpd = (unsigned long)tcp_hdr(skb) +
2873                 tcp_hdr(skb)->doff * 4;
2874         int tcpd_len = skb->len - (tcpd - (unsigned long)skb->data);
2875         int elements = PFN_UP(tcpd + tcpd_len) - PFN_DOWN(tcpd);
2876         elements += skb_shinfo(skb)->nr_frags;
2877         return elements;
2878 }
2879
2880 static inline int qeth_l3_tso_check(struct sk_buff *skb)
2881 {
2882         int len = ((unsigned long)tcp_hdr(skb) + tcp_hdr(skb)->doff * 4) -
2883                 (unsigned long)skb->data;
2884         return (((unsigned long)skb->data & PAGE_MASK) !=
2885                 (((unsigned long)skb->data + len) & PAGE_MASK));
2886 }
2887
2888 static int qeth_l3_hard_start_xmit(struct sk_buff *skb, struct net_device *dev)
2889 {
2890         int rc;
2891         u16 *tag;
2892         struct qeth_hdr *hdr = NULL;
2893         int elements_needed = 0;
2894         int elems;
2895         struct qeth_card *card = dev->ml_priv;
2896         struct sk_buff *new_skb = NULL;
2897         int ipv = qeth_get_ip_version(skb);
2898         int cast_type = qeth_l3_get_cast_type(card, skb);
2899         struct qeth_qdio_out_q *queue = card->qdio.out_qs
2900                 [qeth_get_priority_queue(card, skb, ipv, cast_type)];
2901         int tx_bytes = skb->len;
2902         enum qeth_large_send_types large_send = QETH_LARGE_SEND_NO;
2903         int data_offset = -1;
2904         int nr_frags;
2905
2906         if (((card->info.type == QETH_CARD_TYPE_IQD) && (!ipv)) ||
2907              card->options.sniffer)
2908                         goto tx_drop;
2909
2910         if ((card->state != CARD_STATE_UP) || !card->lan_online) {
2911                 card->stats.tx_carrier_errors++;
2912                 goto tx_drop;
2913         }
2914
2915         if ((cast_type == RTN_BROADCAST) &&
2916             (card->info.broadcast_capable == 0))
2917                 goto tx_drop;
2918
2919         if (card->options.performance_stats) {
2920                 card->perf_stats.outbound_cnt++;
2921                 card->perf_stats.outbound_start_time = qeth_get_micros();
2922         }
2923
2924         if (skb_is_gso(skb))
2925                 large_send = card->options.large_send;
2926         else
2927                 if (skb->ip_summed == CHECKSUM_PARTIAL) {
2928                         qeth_tx_csum(skb);
2929                         if (card->options.performance_stats)
2930                                 card->perf_stats.tx_csum++;
2931                 }
2932
2933         if ((card->info.type == QETH_CARD_TYPE_IQD) && (!large_send) &&
2934             (skb_shinfo(skb)->nr_frags == 0)) {
2935                 new_skb = skb;
2936                 data_offset = ETH_HLEN;
2937                 hdr = kmem_cache_alloc(qeth_core_header_cache, GFP_ATOMIC);
2938                 if (!hdr)
2939                         goto tx_drop;
2940                 elements_needed++;
2941         } else {
2942                 /* create a clone with writeable headroom */
2943                 new_skb = skb_realloc_headroom(skb, sizeof(struct qeth_hdr_tso)
2944                                         + VLAN_HLEN);
2945                 if (!new_skb)
2946                         goto tx_drop;
2947         }
2948
2949         if (card->info.type == QETH_CARD_TYPE_IQD) {
2950                 if (data_offset < 0)
2951                         skb_pull(new_skb, ETH_HLEN);
2952         } else {
2953                 if (ipv == 4) {
2954                         if (card->dev->type == ARPHRD_IEEE802_TR)
2955                                 skb_pull(new_skb, TR_HLEN);
2956                         else
2957                                 skb_pull(new_skb, ETH_HLEN);
2958                 }
2959
2960                 if (ipv == 6 && card->vlangrp &&
2961                                 vlan_tx_tag_present(new_skb)) {
2962                         skb_push(new_skb, VLAN_HLEN);
2963                         skb_copy_to_linear_data(new_skb, new_skb->data + 4, 4);
2964                         skb_copy_to_linear_data_offset(new_skb, 4,
2965                                 new_skb->data + 8, 4);
2966                         skb_copy_to_linear_data_offset(new_skb, 8,
2967                                 new_skb->data + 12, 4);
2968                         tag = (u16 *)(new_skb->data + 12);
2969                         *tag = __constant_htons(ETH_P_8021Q);
2970                         *(tag + 1) = htons(vlan_tx_tag_get(new_skb));
2971                         new_skb->vlan_tci = 0;
2972                 }
2973         }
2974
2975         netif_stop_queue(dev);
2976
2977         /* fix hardware limitation: as long as we do not have sbal
2978          * chaining we can not send long frag lists
2979          */
2980         if (large_send == QETH_LARGE_SEND_TSO) {
2981                 if (qeth_l3_tso_elements(new_skb) + 1 > 16) {
2982                         if (skb_linearize(new_skb))
2983                                 goto tx_drop;
2984                         if (card->options.performance_stats)
2985                                 card->perf_stats.tx_lin++;
2986                 }
2987         }
2988
2989         if ((large_send == QETH_LARGE_SEND_TSO) &&
2990             (cast_type == RTN_UNSPEC)) {
2991                 hdr = (struct qeth_hdr *)skb_push(new_skb,
2992                                                 sizeof(struct qeth_hdr_tso));
2993                 if (qeth_l3_tso_check(new_skb))
2994                         QETH_DBF_MESSAGE(2, "tso skb misaligned\n");
2995                 memset(hdr, 0, sizeof(struct qeth_hdr_tso));
2996                 qeth_l3_fill_header(card, hdr, new_skb, ipv, cast_type);
2997                 qeth_tso_fill_header(card, hdr, new_skb);
2998                 elements_needed++;
2999         } else {
3000                 if (data_offset < 0) {
3001                         hdr = (struct qeth_hdr *)skb_push(new_skb,
3002                                                 sizeof(struct qeth_hdr));
3003                         qeth_l3_fill_header(card, hdr, new_skb, ipv,
3004                                                 cast_type);
3005                 } else {
3006                         qeth_l3_fill_header(card, hdr, new_skb, ipv,
3007                                                 cast_type);
3008                         hdr->hdr.l3.length = new_skb->len - data_offset;
3009                 }
3010         }
3011
3012         elems = qeth_get_elements_no(card, (void *)hdr, new_skb,
3013                                                  elements_needed);
3014         if (!elems) {
3015                 if (data_offset >= 0)
3016                         kmem_cache_free(qeth_core_header_cache, hdr);
3017                 goto tx_drop;
3018         }
3019         elements_needed += elems;
3020         nr_frags = skb_shinfo(new_skb)->nr_frags;
3021
3022         if (card->info.type != QETH_CARD_TYPE_IQD)
3023                 rc = qeth_do_send_packet(card, queue, new_skb, hdr,
3024                                          elements_needed);
3025         else
3026                 rc = qeth_do_send_packet_fast(card, queue, new_skb, hdr,
3027                                         elements_needed, data_offset, 0);
3028
3029         if (!rc) {
3030                 card->stats.tx_packets++;
3031                 card->stats.tx_bytes += tx_bytes;
3032                 if (new_skb != skb)
3033                         dev_kfree_skb_any(skb);
3034                 if (card->options.performance_stats) {
3035                         if (large_send != QETH_LARGE_SEND_NO) {
3036                                 card->perf_stats.large_send_bytes += tx_bytes;
3037                                 card->perf_stats.large_send_cnt++;
3038                         }
3039                         if (nr_frags) {
3040                                 card->perf_stats.sg_skbs_sent++;
3041                                 /* nr_frags + skb->data */
3042                                 card->perf_stats.sg_frags_sent += nr_frags + 1;
3043                         }
3044                 }
3045                 rc = NETDEV_TX_OK;
3046         } else {
3047                 if (data_offset >= 0)
3048                         kmem_cache_free(qeth_core_header_cache, hdr);
3049
3050                 if (rc == -EBUSY) {
3051                         if (new_skb != skb)
3052                                 dev_kfree_skb_any(new_skb);
3053                         return NETDEV_TX_BUSY;
3054                 } else
3055                         goto tx_drop;
3056         }
3057
3058         netif_wake_queue(dev);
3059         if (card->options.performance_stats)
3060                 card->perf_stats.outbound_time += qeth_get_micros() -
3061                         card->perf_stats.outbound_start_time;
3062         return rc;
3063
3064 tx_drop:
3065         card->stats.tx_dropped++;
3066         card->stats.tx_errors++;
3067         if ((new_skb != skb) && new_skb)
3068                 dev_kfree_skb_any(new_skb);
3069         dev_kfree_skb_any(skb);
3070         netif_wake_queue(dev);
3071         return NETDEV_TX_OK;
3072 }
3073
3074 static int qeth_l3_open(struct net_device *dev)
3075 {
3076         struct qeth_card *card = dev->ml_priv;
3077
3078         QETH_DBF_TEXT(TRACE, 4, "qethopen");
3079         if (card->state != CARD_STATE_SOFTSETUP)
3080                 return -ENODEV;
3081         card->data.state = CH_STATE_UP;
3082         card->state = CARD_STATE_UP;
3083         netif_start_queue(dev);
3084
3085         if (!card->lan_online && netif_carrier_ok(dev))
3086                 netif_carrier_off(dev);
3087         return 0;
3088 }
3089
3090 static int qeth_l3_stop(struct net_device *dev)
3091 {
3092         struct qeth_card *card = dev->ml_priv;
3093
3094         QETH_DBF_TEXT(TRACE, 4, "qethstop");
3095         netif_tx_disable(dev);
3096         if (card->state == CARD_STATE_UP)
3097                 card->state = CARD_STATE_SOFTSETUP;
3098         return 0;
3099 }
3100
3101 static u32 qeth_l3_ethtool_get_rx_csum(struct net_device *dev)
3102 {
3103         struct qeth_card *card = dev->ml_priv;
3104
3105         return (card->options.checksum_type == HW_CHECKSUMMING);
3106 }
3107
3108 static int qeth_l3_ethtool_set_rx_csum(struct net_device *dev, u32 data)
3109 {
3110         struct qeth_card *card = dev->ml_priv;
3111         enum qeth_checksum_types csum_type;
3112
3113         if (data)
3114                 csum_type = HW_CHECKSUMMING;
3115         else
3116                 csum_type = SW_CHECKSUMMING;
3117
3118         return qeth_l3_set_rx_csum(card, csum_type);
3119 }
3120
3121 static int qeth_l3_ethtool_set_tso(struct net_device *dev, u32 data)
3122 {
3123         struct qeth_card *card = dev->ml_priv;
3124         int rc = 0;
3125
3126         if (data) {
3127                 rc = qeth_l3_set_large_send(card, QETH_LARGE_SEND_TSO);
3128         } else {
3129                 dev->features &= ~NETIF_F_TSO;
3130                 card->options.large_send = QETH_LARGE_SEND_NO;
3131         }
3132         return rc;
3133 }
3134
3135 static const struct ethtool_ops qeth_l3_ethtool_ops = {
3136         .get_link = ethtool_op_get_link,
3137         .get_tx_csum = ethtool_op_get_tx_csum,
3138         .set_tx_csum = ethtool_op_set_tx_hw_csum,
3139         .get_rx_csum = qeth_l3_ethtool_get_rx_csum,
3140         .set_rx_csum = qeth_l3_ethtool_set_rx_csum,
3141         .get_sg      = ethtool_op_get_sg,
3142         .set_sg      = ethtool_op_set_sg,
3143         .get_tso     = ethtool_op_get_tso,
3144         .set_tso     = qeth_l3_ethtool_set_tso,
3145         .get_strings = qeth_core_get_strings,
3146         .get_ethtool_stats = qeth_core_get_ethtool_stats,
3147         .get_sset_count = qeth_core_get_sset_count,
3148         .get_drvinfo = qeth_core_get_drvinfo,
3149         .get_settings = qeth_core_ethtool_get_settings,
3150 };
3151
3152 /*
3153  * we need NOARP for IPv4 but we want neighbor solicitation for IPv6. Setting
3154  * NOARP on the netdevice is no option because it also turns off neighbor
3155  * solicitation. For IPv4 we install a neighbor_setup function. We don't want
3156  * arp resolution but we want the hard header (packet socket will work
3157  * e.g. tcpdump)
3158  */
3159 static int qeth_l3_neigh_setup_noarp(struct neighbour *n)
3160 {
3161         n->nud_state = NUD_NOARP;
3162         memcpy(n->ha, "FAKELL", 6);
3163         n->output = n->ops->connected_output;
3164         return 0;
3165 }
3166
3167 static int
3168 qeth_l3_neigh_setup(struct net_device *dev, struct neigh_parms *np)
3169 {
3170         if (np->tbl->family == AF_INET)
3171                 np->neigh_setup = qeth_l3_neigh_setup_noarp;
3172
3173         return 0;
3174 }
3175
3176 static const struct net_device_ops qeth_l3_netdev_ops = {
3177         .ndo_open               = qeth_l3_open,
3178         .ndo_stop               = qeth_l3_stop,
3179         .ndo_get_stats          = qeth_get_stats,
3180         .ndo_start_xmit         = qeth_l3_hard_start_xmit,
3181         .ndo_validate_addr      = eth_validate_addr,
3182         .ndo_set_multicast_list = qeth_l3_set_multicast_list,
3183         .ndo_do_ioctl           = qeth_l3_do_ioctl,
3184         .ndo_change_mtu         = qeth_change_mtu,
3185         .ndo_vlan_rx_register   = qeth_l3_vlan_rx_register,
3186         .ndo_vlan_rx_add_vid    = qeth_l3_vlan_rx_add_vid,
3187         .ndo_vlan_rx_kill_vid   = qeth_l3_vlan_rx_kill_vid,
3188         .ndo_tx_timeout         = qeth_tx_timeout,
3189 };
3190
3191 static const struct net_device_ops qeth_l3_osa_netdev_ops = {
3192         .ndo_open               = qeth_l3_open,
3193         .ndo_stop               = qeth_l3_stop,
3194         .ndo_get_stats          = qeth_get_stats,
3195         .ndo_start_xmit         = qeth_l3_hard_start_xmit,
3196         .ndo_validate_addr      = eth_validate_addr,
3197         .ndo_set_multicast_list = qeth_l3_set_multicast_list,
3198         .ndo_do_ioctl           = qeth_l3_do_ioctl,
3199         .ndo_change_mtu         = qeth_change_mtu,
3200         .ndo_vlan_rx_register   = qeth_l3_vlan_rx_register,
3201         .ndo_vlan_rx_add_vid    = qeth_l3_vlan_rx_add_vid,
3202         .ndo_vlan_rx_kill_vid   = qeth_l3_vlan_rx_kill_vid,
3203         .ndo_tx_timeout         = qeth_tx_timeout,
3204         .ndo_neigh_setup        = qeth_l3_neigh_setup,
3205 };
3206
3207 static int qeth_l3_setup_netdev(struct qeth_card *card)
3208 {
3209         if (card->info.type == QETH_CARD_TYPE_OSAE) {
3210                 if ((card->info.link_type == QETH_LINK_TYPE_LANE_TR) ||
3211                     (card->info.link_type == QETH_LINK_TYPE_HSTR)) {
3212 #ifdef CONFIG_TR
3213                         card->dev = alloc_trdev(0);
3214 #endif
3215                         if (!card->dev)
3216                                 return -ENODEV;
3217                         card->dev->netdev_ops = &qeth_l3_netdev_ops;
3218                 } else {
3219                         card->dev = alloc_etherdev(0);
3220                         if (!card->dev)
3221                                 return -ENODEV;
3222                         card->dev->netdev_ops = &qeth_l3_osa_netdev_ops;
3223
3224                         /*IPv6 address autoconfiguration stuff*/
3225                         qeth_l3_get_unique_id(card);
3226                         if (!(card->info.unique_id & UNIQUE_ID_NOT_BY_CARD))
3227                                 card->dev->dev_id = card->info.unique_id &
3228                                                          0xffff;
3229                 }
3230         } else if (card->info.type == QETH_CARD_TYPE_IQD) {
3231                 card->dev = alloc_netdev(0, "hsi%d", ether_setup);
3232                 if (!card->dev)
3233                         return -ENODEV;
3234                 card->dev->flags |= IFF_NOARP;
3235                 card->dev->netdev_ops = &qeth_l3_netdev_ops;
3236                 qeth_l3_iqd_read_initial_mac(card);
3237         } else
3238                 return -ENODEV;
3239
3240         card->dev->ml_priv = card;
3241         card->dev->watchdog_timeo = QETH_TX_TIMEOUT;
3242         card->dev->mtu = card->info.initial_mtu;
3243         SET_ETHTOOL_OPS(card->dev, &qeth_l3_ethtool_ops);
3244         card->dev->features |=  NETIF_F_HW_VLAN_TX |
3245                                 NETIF_F_HW_VLAN_RX |
3246                                 NETIF_F_HW_VLAN_FILTER;
3247         card->dev->priv_flags &= ~IFF_XMIT_DST_RELEASE;
3248         card->dev->gso_max_size = 15 * PAGE_SIZE;
3249
3250         SET_NETDEV_DEV(card->dev, &card->gdev->dev);
3251         return register_netdev(card->dev);
3252 }
3253
3254 static void qeth_l3_qdio_input_handler(struct ccw_device *ccwdev,
3255                 unsigned int qdio_err, unsigned int queue, int first_element,
3256                 int count, unsigned long card_ptr)
3257 {
3258         struct net_device *net_dev;
3259         struct qeth_card *card;
3260         struct qeth_qdio_buffer *buffer;
3261         int index;
3262         int i;
3263
3264         card = (struct qeth_card *) card_ptr;
3265         net_dev = card->dev;
3266         if (card->options.performance_stats) {
3267                 card->perf_stats.inbound_cnt++;
3268                 card->perf_stats.inbound_start_time = qeth_get_micros();
3269         }
3270         if (qdio_err & QDIO_ERROR_ACTIVATE_CHECK_CONDITION) {
3271                 QETH_DBF_TEXT(TRACE, 1, "qdinchk");
3272                 QETH_DBF_TEXT_(TRACE, 1, "%s", CARD_BUS_ID(card));
3273                 QETH_DBF_TEXT_(TRACE, 1, "%04X%04X",
3274                                 first_element, count);
3275                 QETH_DBF_TEXT_(TRACE, 1, "%04X", queue);
3276                 qeth_schedule_recovery(card);
3277                 return;
3278         }
3279         for (i = first_element; i < (first_element + count); ++i) {
3280                 index = i % QDIO_MAX_BUFFERS_PER_Q;
3281                 buffer = &card->qdio.in_q->bufs[index];
3282                 if (!(qdio_err &&
3283                       qeth_check_qdio_errors(card, buffer->buffer,
3284                                              qdio_err, "qinerr")))
3285                         qeth_l3_process_inbound_buffer(card, buffer, index);
3286                 /* clear buffer and give back to hardware */
3287                 qeth_put_buffer_pool_entry(card, buffer->pool_entry);
3288                 qeth_queue_input_buffer(card, index);
3289         }
3290         if (card->options.performance_stats)
3291                 card->perf_stats.inbound_time += qeth_get_micros() -
3292                         card->perf_stats.inbound_start_time;
3293 }
3294
3295 static int qeth_l3_probe_device(struct ccwgroup_device *gdev)
3296 {
3297         struct qeth_card *card = dev_get_drvdata(&gdev->dev);
3298
3299         qeth_l3_create_device_attributes(&gdev->dev);
3300         card->options.layer2 = 0;
3301         card->discipline.input_handler = (qdio_handler_t *)
3302                 qeth_l3_qdio_input_handler;
3303         card->discipline.output_handler = (qdio_handler_t *)
3304                 qeth_qdio_output_handler;
3305         card->discipline.recover = qeth_l3_recover;
3306         return 0;
3307 }
3308
3309 static void qeth_l3_remove_device(struct ccwgroup_device *cgdev)
3310 {
3311         struct qeth_card *card = dev_get_drvdata(&cgdev->dev);
3312
3313         qeth_set_allowed_threads(card, 0, 1);
3314         wait_event(card->wait_q, qeth_threads_running(card, 0xffffffff) == 0);
3315
3316         if (cgdev->state == CCWGROUP_ONLINE) {
3317                 card->use_hard_stop = 1;
3318                 qeth_l3_set_offline(cgdev);
3319         }
3320
3321         if (card->dev) {
3322                 unregister_netdev(card->dev);
3323                 card->dev = NULL;
3324         }
3325
3326         qeth_l3_remove_device_attributes(&cgdev->dev);
3327         qeth_l3_clear_ip_list(card, 0, 0);
3328         qeth_l3_clear_ipato_list(card);
3329         return;
3330 }
3331
3332 static int __qeth_l3_set_online(struct ccwgroup_device *gdev, int recovery_mode)
3333 {
3334         struct qeth_card *card = dev_get_drvdata(&gdev->dev);
3335         int rc = 0;
3336         enum qeth_card_states recover_flag;
3337
3338         BUG_ON(!card);
3339         QETH_DBF_TEXT(SETUP, 2, "setonlin");
3340         QETH_DBF_HEX(SETUP, 2, &card, sizeof(void *));
3341
3342         recover_flag = card->state;
3343         rc = qeth_core_hardsetup_card(card);
3344         if (rc) {
3345                 QETH_DBF_TEXT_(SETUP, 2, "2err%d", rc);
3346                 rc = -ENODEV;
3347                 goto out_remove;
3348         }
3349
3350         qeth_l3_query_ipassists(card, QETH_PROT_IPV4);
3351
3352         if (!card->dev && qeth_l3_setup_netdev(card)) {
3353                 rc = -ENODEV;
3354                 goto out_remove;
3355         }
3356
3357         card->state = CARD_STATE_HARDSETUP;
3358         qeth_print_status_message(card);
3359
3360         /* softsetup */
3361         QETH_DBF_TEXT(SETUP, 2, "softsetp");
3362
3363         rc = qeth_send_startlan(card);
3364         if (rc) {
3365                 QETH_DBF_TEXT_(SETUP, 2, "1err%d", rc);
3366                 if (rc == 0xe080) {
3367                         dev_warn(&card->gdev->dev,
3368                                 "The LAN is offline\n");
3369                         card->lan_online = 0;
3370                         return 0;
3371                 }
3372                 rc = -ENODEV;
3373                 goto out_remove;
3374         } else
3375                 card->lan_online = 1;
3376
3377         rc = qeth_l3_setadapter_parms(card);
3378         if (rc)
3379                 QETH_DBF_TEXT_(SETUP, 2, "2err%d", rc);
3380         if (!card->options.sniffer) {
3381                 rc = qeth_l3_start_ipassists(card);
3382                 if (rc)
3383                         QETH_DBF_TEXT_(SETUP, 2, "3err%d", rc);
3384                 qeth_l3_set_large_send(card, card->options.large_send);
3385                 rc = qeth_l3_setrouting_v4(card);
3386                 if (rc)
3387                         QETH_DBF_TEXT_(SETUP, 2, "4err%d", rc);
3388                 rc = qeth_l3_setrouting_v6(card);
3389                 if (rc)
3390                         QETH_DBF_TEXT_(SETUP, 2, "5err%d", rc);
3391         }
3392         netif_tx_disable(card->dev);
3393
3394         rc = qeth_init_qdio_queues(card);
3395         if (rc) {
3396                 QETH_DBF_TEXT_(SETUP, 2, "6err%d", rc);
3397                 rc = -ENODEV;
3398                 goto out_remove;
3399         }
3400         card->state = CARD_STATE_SOFTSETUP;
3401         netif_carrier_on(card->dev);
3402
3403         qeth_set_allowed_threads(card, 0xffffffff, 0);
3404         qeth_l3_set_ip_addr_list(card);
3405         if (recover_flag == CARD_STATE_RECOVER) {
3406                 if (recovery_mode)
3407                         qeth_l3_open(card->dev);
3408                 else {
3409                         rtnl_lock();
3410                         dev_open(card->dev);
3411                         rtnl_unlock();
3412                 }
3413                 qeth_l3_set_multicast_list(card->dev);
3414         }
3415         /* let user_space know that device is online */
3416         kobject_uevent(&gdev->dev.kobj, KOBJ_CHANGE);
3417         return 0;
3418 out_remove:
3419         card->use_hard_stop = 1;
3420         qeth_l3_stop_card(card, 0);
3421         ccw_device_set_offline(CARD_DDEV(card));
3422         ccw_device_set_offline(CARD_WDEV(card));
3423         ccw_device_set_offline(CARD_RDEV(card));
3424         if (recover_flag == CARD_STATE_RECOVER)
3425                 card->state = CARD_STATE_RECOVER;
3426         else
3427                 card->state = CARD_STATE_DOWN;
3428         return rc;
3429 }
3430
3431 static int qeth_l3_set_online(struct ccwgroup_device *gdev)
3432 {
3433         return __qeth_l3_set_online(gdev, 0);
3434 }
3435
3436 static int __qeth_l3_set_offline(struct ccwgroup_device *cgdev,
3437                         int recovery_mode)
3438 {
3439         struct qeth_card *card = dev_get_drvdata(&cgdev->dev);
3440         int rc = 0, rc2 = 0, rc3 = 0;
3441         enum qeth_card_states recover_flag;
3442
3443         QETH_DBF_TEXT(SETUP, 3, "setoffl");
3444         QETH_DBF_HEX(SETUP, 3, &card, sizeof(void *));
3445
3446         if (card->dev && netif_carrier_ok(card->dev))
3447                 netif_carrier_off(card->dev);
3448         recover_flag = card->state;
3449         qeth_l3_stop_card(card, recovery_mode);
3450         rc  = ccw_device_set_offline(CARD_DDEV(card));
3451         rc2 = ccw_device_set_offline(CARD_WDEV(card));
3452         rc3 = ccw_device_set_offline(CARD_RDEV(card));
3453         if (!rc)
3454                 rc = (rc2) ? rc2 : rc3;
3455         if (rc)
3456                 QETH_DBF_TEXT_(SETUP, 2, "1err%d", rc);
3457         if (recover_flag == CARD_STATE_UP)
3458                 card->state = CARD_STATE_RECOVER;
3459         /* let user_space know that device is offline */
3460         kobject_uevent(&cgdev->dev.kobj, KOBJ_CHANGE);
3461         return 0;
3462 }
3463
3464 static int qeth_l3_set_offline(struct ccwgroup_device *cgdev)
3465 {
3466         return __qeth_l3_set_offline(cgdev, 0);
3467 }
3468
3469 static int qeth_l3_recover(void *ptr)
3470 {
3471         struct qeth_card *card;
3472         int rc = 0;
3473
3474         card = (struct qeth_card *) ptr;
3475         QETH_DBF_TEXT(TRACE, 2, "recover1");
3476         QETH_DBF_HEX(TRACE, 2, &card, sizeof(void *));
3477         if (!qeth_do_run_thread(card, QETH_RECOVER_THREAD))
3478                 return 0;
3479         QETH_DBF_TEXT(TRACE, 2, "recover2");
3480         dev_warn(&card->gdev->dev,
3481                 "A recovery process has been started for the device\n");
3482         card->use_hard_stop = 1;
3483         __qeth_l3_set_offline(card->gdev, 1);
3484         rc = __qeth_l3_set_online(card->gdev, 1);
3485         /* don't run another scheduled recovery */
3486         qeth_clear_thread_start_bit(card, QETH_RECOVER_THREAD);
3487         qeth_clear_thread_running_bit(card, QETH_RECOVER_THREAD);
3488         if (!rc)
3489                 dev_info(&card->gdev->dev,
3490                         "Device successfully recovered!\n");
3491         else {
3492                 rtnl_lock();
3493                 dev_close(card->dev);
3494                 rtnl_unlock();
3495                 dev_warn(&card->gdev->dev, "The qeth device driver "
3496                         "failed to recover an error on the device\n");
3497         }
3498         return 0;
3499 }
3500
3501 static void qeth_l3_shutdown(struct ccwgroup_device *gdev)
3502 {
3503         struct qeth_card *card = dev_get_drvdata(&gdev->dev);
3504         qeth_l3_clear_ip_list(card, 0, 0);
3505         qeth_qdio_clear_card(card, 0);
3506         qeth_clear_qdio_buffers(card);
3507 }
3508
3509 static int qeth_l3_pm_suspend(struct ccwgroup_device *gdev)
3510 {
3511         struct qeth_card *card = dev_get_drvdata(&gdev->dev);
3512
3513         if (card->dev)
3514                 netif_device_detach(card->dev);
3515         qeth_set_allowed_threads(card, 0, 1);
3516         wait_event(card->wait_q, qeth_threads_running(card, 0xffffffff) == 0);
3517         if (gdev->state == CCWGROUP_OFFLINE)
3518                 return 0;
3519         if (card->state == CARD_STATE_UP) {
3520                 card->use_hard_stop = 1;
3521                 __qeth_l3_set_offline(card->gdev, 1);
3522         } else
3523                 __qeth_l3_set_offline(card->gdev, 0);
3524         return 0;
3525 }
3526
3527 static int qeth_l3_pm_resume(struct ccwgroup_device *gdev)
3528 {
3529         struct qeth_card *card = dev_get_drvdata(&gdev->dev);
3530         int rc = 0;
3531
3532         if (gdev->state == CCWGROUP_OFFLINE)
3533                 goto out;
3534
3535         if (card->state == CARD_STATE_RECOVER) {
3536                 rc = __qeth_l3_set_online(card->gdev, 1);
3537                 if (rc) {
3538                         rtnl_lock();
3539                         dev_close(card->dev);
3540                         rtnl_unlock();
3541                 }
3542         } else
3543                 rc = __qeth_l3_set_online(card->gdev, 0);
3544 out:
3545         qeth_set_allowed_threads(card, 0xffffffff, 0);
3546         if (card->dev)
3547                 netif_device_attach(card->dev);
3548         if (rc)
3549                 dev_warn(&card->gdev->dev, "The qeth device driver "
3550                         "failed to recover an error on the device\n");
3551         return rc;
3552 }
3553
3554 struct ccwgroup_driver qeth_l3_ccwgroup_driver = {
3555         .probe = qeth_l3_probe_device,
3556         .remove = qeth_l3_remove_device,
3557         .set_online = qeth_l3_set_online,
3558         .set_offline = qeth_l3_set_offline,
3559         .shutdown = qeth_l3_shutdown,
3560         .freeze = qeth_l3_pm_suspend,
3561         .thaw = qeth_l3_pm_resume,
3562         .restore = qeth_l3_pm_resume,
3563 };
3564 EXPORT_SYMBOL_GPL(qeth_l3_ccwgroup_driver);
3565
3566 static int qeth_l3_ip_event(struct notifier_block *this,
3567                             unsigned long event, void *ptr)
3568 {
3569         struct in_ifaddr *ifa = (struct in_ifaddr *)ptr;
3570         struct net_device *dev = (struct net_device *)ifa->ifa_dev->dev;
3571         struct qeth_ipaddr *addr;
3572         struct qeth_card *card;
3573
3574         if (dev_net(dev) != &init_net)
3575                 return NOTIFY_DONE;
3576
3577         QETH_DBF_TEXT(TRACE, 3, "ipevent");
3578         card = qeth_l3_get_card_from_dev(dev);
3579         if (!card)
3580                 return NOTIFY_DONE;
3581
3582         addr = qeth_l3_get_addr_buffer(QETH_PROT_IPV4);
3583         if (addr != NULL) {
3584                 addr->u.a4.addr = ifa->ifa_address;
3585                 addr->u.a4.mask = ifa->ifa_mask;
3586                 addr->type = QETH_IP_TYPE_NORMAL;
3587         } else
3588                 goto out;
3589
3590         switch (event) {
3591         case NETDEV_UP:
3592                 if (!qeth_l3_add_ip(card, addr))
3593                         kfree(addr);
3594                 break;
3595         case NETDEV_DOWN:
3596                 if (!qeth_l3_delete_ip(card, addr))
3597                         kfree(addr);
3598                 break;
3599         default:
3600                 break;
3601         }
3602         qeth_l3_set_ip_addr_list(card);
3603 out:
3604         return NOTIFY_DONE;
3605 }
3606
3607 static struct notifier_block qeth_l3_ip_notifier = {
3608         qeth_l3_ip_event,
3609         NULL,
3610 };
3611
3612 #ifdef CONFIG_QETH_IPV6
3613 /**
3614  * IPv6 event handler
3615  */
3616 static int qeth_l3_ip6_event(struct notifier_block *this,
3617                              unsigned long event, void *ptr)
3618 {
3619         struct inet6_ifaddr *ifa = (struct inet6_ifaddr *)ptr;
3620         struct net_device *dev = (struct net_device *)ifa->idev->dev;
3621         struct qeth_ipaddr *addr;
3622         struct qeth_card *card;
3623
3624         QETH_DBF_TEXT(TRACE, 3, "ip6event");
3625
3626         card = qeth_l3_get_card_from_dev(dev);
3627         if (!card)
3628                 return NOTIFY_DONE;
3629         if (!qeth_is_supported(card, IPA_IPV6))
3630                 return NOTIFY_DONE;
3631
3632         addr = qeth_l3_get_addr_buffer(QETH_PROT_IPV6);
3633         if (addr != NULL) {
3634                 memcpy(&addr->u.a6.addr, &ifa->addr, sizeof(struct in6_addr));
3635                 addr->u.a6.pfxlen = ifa->prefix_len;
3636                 addr->type = QETH_IP_TYPE_NORMAL;
3637         } else
3638                 goto out;
3639
3640         switch (event) {
3641         case NETDEV_UP:
3642                 if (!qeth_l3_add_ip(card, addr))
3643                         kfree(addr);
3644                 break;
3645         case NETDEV_DOWN:
3646                 if (!qeth_l3_delete_ip(card, addr))
3647                         kfree(addr);
3648                 break;
3649         default:
3650                 break;
3651         }
3652         qeth_l3_set_ip_addr_list(card);
3653 out:
3654         return NOTIFY_DONE;
3655 }
3656
3657 static struct notifier_block qeth_l3_ip6_notifier = {
3658         qeth_l3_ip6_event,
3659         NULL,
3660 };
3661 #endif
3662
3663 static int qeth_l3_register_notifiers(void)
3664 {
3665         int rc;
3666
3667         QETH_DBF_TEXT(TRACE, 5, "regnotif");
3668         rc = register_inetaddr_notifier(&qeth_l3_ip_notifier);
3669         if (rc)
3670                 return rc;
3671 #ifdef CONFIG_QETH_IPV6
3672         rc = register_inet6addr_notifier(&qeth_l3_ip6_notifier);
3673         if (rc) {
3674                 unregister_inetaddr_notifier(&qeth_l3_ip_notifier);
3675                 return rc;
3676         }
3677 #else
3678         pr_warning("There is no IPv6 support for the layer 3 discipline\n");
3679 #endif
3680         return 0;
3681 }
3682
3683 static void qeth_l3_unregister_notifiers(void)
3684 {
3685
3686         QETH_DBF_TEXT(TRACE, 5, "unregnot");
3687         BUG_ON(unregister_inetaddr_notifier(&qeth_l3_ip_notifier));
3688 #ifdef CONFIG_QETH_IPV6
3689         BUG_ON(unregister_inet6addr_notifier(&qeth_l3_ip6_notifier));
3690 #endif /* QETH_IPV6 */
3691 }
3692
3693 static int __init qeth_l3_init(void)
3694 {
3695         int rc = 0;
3696
3697         pr_info("register layer 3 discipline\n");
3698         rc = qeth_l3_register_notifiers();
3699         return rc;
3700 }
3701
3702 static void __exit qeth_l3_exit(void)
3703 {
3704         qeth_l3_unregister_notifiers();
3705         pr_info("unregister layer 3 discipline\n");
3706 }
3707
3708 module_init(qeth_l3_init);
3709 module_exit(qeth_l3_exit);
3710 MODULE_AUTHOR("Frank Blaschka <frank.blaschka@de.ibm.com>");
3711 MODULE_DESCRIPTION("qeth layer 3 discipline");
3712 MODULE_LICENSE("GPL");