drivers/s390/net/qeth_core_main.c

   1 /*
   2  *  drivers/s390/net/qeth_core_main.c
   3  *
   4  *    Copyright IBM Corp. 2007
   5  *    Author(s): Utz Bacher <utz.bacher@de.ibm.com>,
   6  *               Frank Pavlic <fpavlic@de.ibm.com>,
   7  *               Thomas Spatzier <tspat@de.ibm.com>,
   8  *               Frank Blaschka <frank.blaschka@de.ibm.com>
   9  */
  10
  11 #include <linux/module.h>
  12 #include <linux/moduleparam.h>
  13 #include <linux/string.h>
  14 #include <linux/errno.h>
  15 #include <linux/kernel.h>
  16 #include <linux/ip.h>
  17 #include <linux/ipv6.h>
  18 #include <linux/tcp.h>
  19 #include <linux/mii.h>
  20 #include <linux/kthread.h>
  21
  22 #include <asm-s390/ebcdic.h>
  23 #include <asm-s390/io.h>
  24 #include <asm/s390_rdev.h>
  25
  26 #include "qeth_core.h"
  27 #include "qeth_core_offl.h"
  28
  29 struct qeth_dbf_info qeth_dbf[QETH_DBF_INFOS] = {
  30         /* define dbf - Name, Pages, Areas, Maxlen, Level, View, Handle */
  31         /*                   N  P  A    M  L  V                      H  */
  32         [QETH_DBF_SETUP] = {"qeth_setup",
  33                                 8, 1,   8, 5, &debug_hex_ascii_view, NULL},
  34         [QETH_DBF_QERR]  = {"qeth_qerr",
  35                                 2, 1,   8, 2, &debug_hex_ascii_view, NULL},
  36         [QETH_DBF_TRACE] = {"qeth_trace",
  37                                 4, 1,   8, 3, &debug_hex_ascii_view, NULL},
  38         [QETH_DBF_MSG]   = {"qeth_msg",
  39                                 8, 1, 128, 3, &debug_sprintf_view,   NULL},
  40         [QETH_DBF_SENSE] = {"qeth_sense",
  41                                 2, 1,  64, 2, &debug_hex_ascii_view, NULL},
  42         [QETH_DBF_MISC]  = {"qeth_misc",
  43                                 2, 1, 256, 2, &debug_hex_ascii_view, NULL},
  44         [QETH_DBF_CTRL]  = {"qeth_control",
  45                 8, 1, QETH_DBF_CTRL_LEN, 5, &debug_hex_ascii_view, NULL},
  46 };
  47 EXPORT_SYMBOL_GPL(qeth_dbf);
  48
  49 struct qeth_card_list_struct qeth_core_card_list;
  50 EXPORT_SYMBOL_GPL(qeth_core_card_list);
  51
  52 static struct device *qeth_core_root_dev;
  53 static unsigned int known_devices[][10] = QETH_MODELLIST_ARRAY;
  54 static struct lock_class_key qdio_out_skb_queue_key;
  55
  56 static void qeth_send_control_data_cb(struct qeth_channel *,
  57                         struct qeth_cmd_buffer *);
  58 static int qeth_issue_next_read(struct qeth_card *);
  59 static struct qeth_cmd_buffer *qeth_get_buffer(struct qeth_channel *);
  60 static void qeth_setup_ccw(struct qeth_channel *, unsigned char *, __u32);
  61 static void qeth_free_buffer_pool(struct qeth_card *);
  62 static int qeth_qdio_establish(struct qeth_card *);
  63
  64
  65 static inline void __qeth_fill_buffer_frag(struct sk_buff *skb,
  66                 struct qdio_buffer *buffer, int is_tso,
  67                 int *next_element_to_fill)
  68 {
  69         struct skb_frag_struct *frag;
  70         int fragno;
  71         unsigned long addr;
  72         int element, cnt, dlen;
  73
  74         fragno = skb_shinfo(skb)->nr_frags;
  75         element = *next_element_to_fill;
  76         dlen = 0;
  77
  78         if (is_tso)
  79                 buffer->element[element].flags =
  80                         SBAL_FLAGS_MIDDLE_FRAG;
  81         else
  82                 buffer->element[element].flags =
  83                         SBAL_FLAGS_FIRST_FRAG;
  84         dlen = skb->len - skb->data_len;
  85         if (dlen) {
  86                 buffer->element[element].addr = skb->data;
  87                 buffer->element[element].length = dlen;
  88                 element++;
  89         }
  90         for (cnt = 0; cnt < fragno; cnt++) {
  91                 frag = &skb_shinfo(skb)->frags[cnt];
  92                 addr = (page_to_pfn(frag->page) << PAGE_SHIFT) +
  93                         frag->page_offset;
  94                 buffer->element[element].addr = (char *)addr;
  95                 buffer->element[element].length = frag->size;
  96                 if (cnt < (fragno - 1))
  97                         buffer->element[element].flags =
  98                                 SBAL_FLAGS_MIDDLE_FRAG;
  99                 else
 100                         buffer->element[element].flags =
 101                                 SBAL_FLAGS_LAST_FRAG;
 102                 element++;
 103         }
 104         *next_element_to_fill = element;
 105 }
 106
 107 static inline const char *qeth_get_cardname(struct qeth_card *card)
 108 {
 109         if (card->info.guestlan) {
 110                 switch (card->info.type) {
 111                 case QETH_CARD_TYPE_OSAE:
 112                         return " Guest LAN QDIO";
 113                 case QETH_CARD_TYPE_IQD:
 114                         return " Guest LAN Hiper";
 115                 default:
 116                         return " unknown";
 117                 }
 118         } else {
 119                 switch (card->info.type) {
 120                 case QETH_CARD_TYPE_OSAE:
 121                         return " OSD Express";
 122                 case QETH_CARD_TYPE_IQD:
 123                         return " HiperSockets";
 124                 case QETH_CARD_TYPE_OSN:
 125                         return " OSN QDIO";
 126                 default:
 127                         return " unknown";
 128                 }
 129         }
 130         return " n/a";
 131 }
 132
 133 /* max length to be returned: 14 */
 134 const char *qeth_get_cardname_short(struct qeth_card *card)
 135 {
 136         if (card->info.guestlan) {
 137                 switch (card->info.type) {
 138                 case QETH_CARD_TYPE_OSAE:
 139                         return "GuestLAN QDIO";
 140                 case QETH_CARD_TYPE_IQD:
 141                         return "GuestLAN Hiper";
 142                 default:
 143                         return "unknown";
 144                 }
 145         } else {
 146                 switch (card->info.type) {
 147                 case QETH_CARD_TYPE_OSAE:
 148                         switch (card->info.link_type) {
 149                         case QETH_LINK_TYPE_FAST_ETH:
 150                                 return "OSD_100";
 151                         case QETH_LINK_TYPE_HSTR:
 152                                 return "HSTR";
 153                         case QETH_LINK_TYPE_GBIT_ETH:
 154                                 return "OSD_1000";
 155                         case QETH_LINK_TYPE_10GBIT_ETH:
 156                                 return "OSD_10GIG";
 157                         case QETH_LINK_TYPE_LANE_ETH100:
 158                                 return "OSD_FE_LANE";
 159                         case QETH_LINK_TYPE_LANE_TR:
 160                                 return "OSD_TR_LANE";
 161                         case QETH_LINK_TYPE_LANE_ETH1000:
 162                                 return "OSD_GbE_LANE";
 163                         case QETH_LINK_TYPE_LANE:
 164                                 return "OSD_ATM_LANE";
 165                         default:
 166                                 return "OSD_Express";
 167                         }
 168                 case QETH_CARD_TYPE_IQD:
 169                         return "HiperSockets";
 170                 case QETH_CARD_TYPE_OSN:
 171                         return "OSN";
 172                 default:
 173                         return "unknown";
 174                 }
 175         }
 176         return "n/a";
 177 }
 178
 179 void qeth_set_allowed_threads(struct qeth_card *card, unsigned long threads,
 180                          int clear_start_mask)
 181 {
 182         unsigned long flags;
 183
 184         spin_lock_irqsave(&card->thread_mask_lock, flags);
 185         card->thread_allowed_mask = threads;
 186         if (clear_start_mask)
 187                 card->thread_start_mask &= threads;
 188         spin_unlock_irqrestore(&card->thread_mask_lock, flags);
 189         wake_up(&card->wait_q);
 190 }
 191 EXPORT_SYMBOL_GPL(qeth_set_allowed_threads);
 192
 193 int qeth_threads_running(struct qeth_card *card, unsigned long threads)
 194 {
 195         unsigned long flags;
 196         int rc = 0;
 197
 198         spin_lock_irqsave(&card->thread_mask_lock, flags);
 199         rc = (card->thread_running_mask & threads);
 200         spin_unlock_irqrestore(&card->thread_mask_lock, flags);
 201         return rc;
 202 }
 203 EXPORT_SYMBOL_GPL(qeth_threads_running);
 204
 205 int qeth_wait_for_threads(struct qeth_card *card, unsigned long threads)
 206 {
 207         return wait_event_interruptible(card->wait_q,
 208                         qeth_threads_running(card, threads) == 0);
 209 }
 210 EXPORT_SYMBOL_GPL(qeth_wait_for_threads);
 211
 212 void qeth_clear_working_pool_list(struct qeth_card *card)
 213 {
 214         struct qeth_buffer_pool_entry *pool_entry, *tmp;
 215
 216         QETH_DBF_TEXT(TRACE, 5, "clwrklst");
 217         list_for_each_entry_safe(pool_entry, tmp,
 218                             &card->qdio.in_buf_pool.entry_list, list){
 219                         list_del(&pool_entry->list);
 220         }
 221 }
 222 EXPORT_SYMBOL_GPL(qeth_clear_working_pool_list);
 223
 224 static int qeth_alloc_buffer_pool(struct qeth_card *card)
 225 {
 226         struct qeth_buffer_pool_entry *pool_entry;
 227         void *ptr;
 228         int i, j;
 229
 230         QETH_DBF_TEXT(TRACE, 5, "alocpool");
 231         for (i = 0; i < card->qdio.init_pool.buf_count; ++i) {
 232                 pool_entry = kmalloc(sizeof(*pool_entry), GFP_KERNEL);
 233                 if (!pool_entry) {
 234                         qeth_free_buffer_pool(card);
 235                         return -ENOMEM;
 236                 }
 237                 for (j = 0; j < QETH_MAX_BUFFER_ELEMENTS(card); ++j) {
 238                         ptr = (void *) __get_free_page(GFP_KERNEL);
 239                         if (!ptr) {
 240                                 while (j > 0)
 241                                         free_page((unsigned long)
 242                                                   pool_entry->elements[--j]);
 243                                 kfree(pool_entry);
 244                                 qeth_free_buffer_pool(card);
 245                                 return -ENOMEM;
 246                         }
 247                         pool_entry->elements[j] = ptr;
 248                 }
 249                 list_add(&pool_entry->init_list,
 250                          &card->qdio.init_pool.entry_list);
 251         }
 252         return 0;
 253 }
 254
 255 int qeth_realloc_buffer_pool(struct qeth_card *card, int bufcnt)
 256 {
 257         QETH_DBF_TEXT(TRACE, 2, "realcbp");
 258
 259         if ((card->state != CARD_STATE_DOWN) &&
 260             (card->state != CARD_STATE_RECOVER))
 261                 return -EPERM;
 262
 263         /* TODO: steel/add buffers from/to a running card's buffer pool (?) */
 264         qeth_clear_working_pool_list(card);
 265         qeth_free_buffer_pool(card);
 266         card->qdio.in_buf_pool.buf_count = bufcnt;
 267         card->qdio.init_pool.buf_count = bufcnt;
 268         return qeth_alloc_buffer_pool(card);
 269 }
 270
 271 int qeth_set_large_send(struct qeth_card *card,
 272                 enum qeth_large_send_types type)
 273 {
 274         int rc = 0;
 275
 276         if (card->dev == NULL) {
 277                 card->options.large_send = type;
 278                 return 0;
 279         }
 280         if (card->state == CARD_STATE_UP)
 281                 netif_tx_disable(card->dev);
 282         card->options.large_send = type;
 283         switch (card->options.large_send) {
 284         case QETH_LARGE_SEND_EDDP:
 285                 card->dev->features |= NETIF_F_TSO | NETIF_F_SG |
 286                                         NETIF_F_HW_CSUM;
 287                 break;
 288         case QETH_LARGE_SEND_TSO:
 289                 if (qeth_is_supported(card, IPA_OUTBOUND_TSO)) {
 290                         card->dev->features |= NETIF_F_TSO | NETIF_F_SG |
 291                                                 NETIF_F_HW_CSUM;
 292                 } else {
 293                         card->dev->features &= ~(NETIF_F_TSO | NETIF_F_SG |
 294                                                 NETIF_F_HW_CSUM);
 295                         card->options.large_send = QETH_LARGE_SEND_NO;
 296                         rc = -EOPNOTSUPP;
 297                 }
 298                 break;
 299         default: /* includes QETH_LARGE_SEND_NO */
 300                 card->dev->features &= ~(NETIF_F_TSO | NETIF_F_SG |
 301                                         NETIF_F_HW_CSUM);
 302                 break;
 303         }
 304         if (card->state == CARD_STATE_UP)
 305                 netif_wake_queue(card->dev);
 306         return rc;
 307 }
 308 EXPORT_SYMBOL_GPL(qeth_set_large_send);
 309
 310 static int qeth_issue_next_read(struct qeth_card *card)
 311 {
 312         int rc;
 313         struct qeth_cmd_buffer *iob;
 314
 315         QETH_DBF_TEXT(TRACE, 5, "issnxrd");
 316         if (card->read.state != CH_STATE_UP)
 317                 return -EIO;
 318         iob = qeth_get_buffer(&card->read);
 319         if (!iob) {
 320                 PRINT_WARN("issue_next_read failed: no iob available!\n");
 321                 return -ENOMEM;
 322         }
 323         qeth_setup_ccw(&card->read, iob->data, QETH_BUFSIZE);
 324         QETH_DBF_TEXT(TRACE, 6, "noirqpnd");
 325         rc = ccw_device_start(card->read.ccwdev, &card->read.ccw,
 326                               (addr_t) iob, 0, 0);
 327         if (rc) {
 328                 PRINT_ERR("Error in starting next read ccw! rc=%i\n", rc);
 329                 atomic_set(&card->read.irq_pending, 0);
 330                 qeth_schedule_recovery(card);
 331                 wake_up(&card->wait_q);
 332         }
 333         return rc;
 334 }
 335
 336 static struct qeth_reply *qeth_alloc_reply(struct qeth_card *card)
 337 {
 338         struct qeth_reply *reply;
 339
 340         reply = kzalloc(sizeof(struct qeth_reply), GFP_ATOMIC);
 341         if (reply) {
 342                 atomic_set(&reply->refcnt, 1);
 343                 atomic_set(&reply->received, 0);
 344                 reply->card = card;
 345         };
 346         return reply;
 347 }
 348
 349 static void qeth_get_reply(struct qeth_reply *reply)
 350 {
 351         WARN_ON(atomic_read(&reply->refcnt) <= 0);
 352         atomic_inc(&reply->refcnt);
 353 }
 354
 355 static void qeth_put_reply(struct qeth_reply *reply)
 356 {
 357         WARN_ON(atomic_read(&reply->refcnt) <= 0);
 358         if (atomic_dec_and_test(&reply->refcnt))
 359                 kfree(reply);
 360 }
 361
 362 static void qeth_issue_ipa_msg(struct qeth_ipa_cmd *cmd, int rc,
 363                 struct qeth_card *card)
 364 {
 365         char *ipa_name;
 366         int com = cmd->hdr.command;
 367         ipa_name = qeth_get_ipa_cmd_name(com);
 368         if (rc)
 369                 QETH_DBF_MESSAGE(2, "IPA: %s(x%X) for %s returned x%X \"%s\"\n",
 370                                 ipa_name, com, QETH_CARD_IFNAME(card),
 371                                         rc, qeth_get_ipa_msg(rc));
 372         else
 373                 QETH_DBF_MESSAGE(5, "IPA: %s(x%X) for %s succeeded\n",
 374                                 ipa_name, com, QETH_CARD_IFNAME(card));
 375 }
 376
 377 static struct qeth_ipa_cmd *qeth_check_ipa_data(struct qeth_card *card,
 378                 struct qeth_cmd_buffer *iob)
 379 {
 380         struct qeth_ipa_cmd *cmd = NULL;
 381
 382         QETH_DBF_TEXT(TRACE, 5, "chkipad");
 383         if (IS_IPA(iob->data)) {
 384                 cmd = (struct qeth_ipa_cmd *) PDU_ENCAPSULATION(iob->data);
 385                 if (IS_IPA_REPLY(cmd)) {
 386                         if (cmd->hdr.command < IPA_CMD_SETCCID ||
 387                             cmd->hdr.command > IPA_CMD_MODCCID)
 388                                 qeth_issue_ipa_msg(cmd,
 389                                                 cmd->hdr.return_code, card);
 390                         return cmd;
 391                 } else {
 392                         switch (cmd->hdr.command) {
 393                         case IPA_CMD_STOPLAN:
 394                                 PRINT_WARN("Link failure on %s (CHPID 0x%X) - "
 395                                            "there is a network problem or "
 396                                            "someone pulled the cable or "
 397                                            "disabled the port.\n",
 398                                            QETH_CARD_IFNAME(card),
 399                                            card->info.chpid);
 400                                 card->lan_online = 0;
 401                                 if (card->dev && netif_carrier_ok(card->dev))
 402                                         netif_carrier_off(card->dev);
 403                                 return NULL;
 404                         case IPA_CMD_STARTLAN:
 405                                 PRINT_INFO("Link reestablished on %s "
 406                                            "(CHPID 0x%X). Scheduling "
 407                                            "IP address reset.\n",
 408                                            QETH_CARD_IFNAME(card),
 409                                            card->info.chpid);
 410                                 netif_carrier_on(card->dev);
 411                                 card->lan_online = 1;
 412                                 qeth_schedule_recovery(card);
 413                                 return NULL;
 414                         case IPA_CMD_MODCCID:
 415                                 return cmd;
 416                         case IPA_CMD_REGISTER_LOCAL_ADDR:
 417                                 QETH_DBF_TEXT(TRACE, 3, "irla");
 418                                 break;
 419                         case IPA_CMD_UNREGISTER_LOCAL_ADDR:
 420                                 QETH_DBF_TEXT(TRACE, 3, "urla");
 421                                 break;
 422                         default:
 423                                 QETH_DBF_MESSAGE(2, "Received data is IPA "
 424                                            "but not a reply!\n");
 425                                 break;
 426                         }
 427                 }
 428         }
 429         return cmd;
 430 }
 431
 432 void qeth_clear_ipacmd_list(struct qeth_card *card)
 433 {
 434         struct qeth_reply *reply, *r;
 435         unsigned long flags;
 436
 437         QETH_DBF_TEXT(TRACE, 4, "clipalst");
 438
 439         spin_lock_irqsave(&card->lock, flags);
 440         list_for_each_entry_safe(reply, r, &card->cmd_waiter_list, list) {
 441                 qeth_get_reply(reply);
 442                 reply->rc = -EIO;
 443                 atomic_inc(&reply->received);
 444                 list_del_init(&reply->list);
 445                 wake_up(&reply->wait_q);
 446                 qeth_put_reply(reply);
 447         }
 448         spin_unlock_irqrestore(&card->lock, flags);
 449 }
 450 EXPORT_SYMBOL_GPL(qeth_clear_ipacmd_list);
 451
 452 static int qeth_check_idx_response(unsigned char *buffer)
 453 {
 454         if (!buffer)
 455                 return 0;
 456
 457         QETH_DBF_HEX(CTRL, 2, buffer, QETH_DBF_CTRL_LEN);
 458         if ((buffer[2] & 0xc0) == 0xc0) {
 459                 PRINT_WARN("received an IDX TERMINATE "
 460                            "with cause code 0x%02x%s\n",
 461                            buffer[4],
 462                            ((buffer[4] == 0x22) ?
 463                             " -- try another portname" : ""));
 464                 QETH_DBF_TEXT(TRACE, 2, "ckidxres");
 465                 QETH_DBF_TEXT(TRACE, 2, " idxterm");
 466                 QETH_DBF_TEXT_(TRACE, 2, "  rc%d", -EIO);
 467                 return -EIO;
 468         }
 469         return 0;
 470 }
 471
 472 static void qeth_setup_ccw(struct qeth_channel *channel, unsigned char *iob,
 473                 __u32 len)
 474 {
 475         struct qeth_card *card;
 476
 477         QETH_DBF_TEXT(TRACE, 4, "setupccw");
 478         card = CARD_FROM_CDEV(channel->ccwdev);
 479         if (channel == &card->read)
 480                 memcpy(&channel->ccw, READ_CCW, sizeof(struct ccw1));
 481         else
 482                 memcpy(&channel->ccw, WRITE_CCW, sizeof(struct ccw1));
 483         channel->ccw.count = len;
 484         channel->ccw.cda = (__u32) __pa(iob);
 485 }
 486
 487 static struct qeth_cmd_buffer *__qeth_get_buffer(struct qeth_channel *channel)
 488 {
 489         __u8 index;
 490
 491         QETH_DBF_TEXT(TRACE, 6, "getbuff");
 492         index = channel->io_buf_no;
 493         do {
 494                 if (channel->iob[index].state == BUF_STATE_FREE) {
 495                         channel->iob[index].state = BUF_STATE_LOCKED;
 496                         channel->io_buf_no = (channel->io_buf_no + 1) %
 497                                 QETH_CMD_BUFFER_NO;
 498                         memset(channel->iob[index].data, 0, QETH_BUFSIZE);
 499                         return channel->iob + index;
 500                 }
 501                 index = (index + 1) % QETH_CMD_BUFFER_NO;
 502         } while (index != channel->io_buf_no);
 503
 504         return NULL;
 505 }
 506
 507 void qeth_release_buffer(struct qeth_channel *channel,
 508                 struct qeth_cmd_buffer *iob)
 509 {
 510         unsigned long flags;
 511
 512         QETH_DBF_TEXT(TRACE, 6, "relbuff");
 513         spin_lock_irqsave(&channel->iob_lock, flags);
 514         memset(iob->data, 0, QETH_BUFSIZE);
 515         iob->state = BUF_STATE_FREE;
 516         iob->callback = qeth_send_control_data_cb;
 517         iob->rc = 0;
 518         spin_unlock_irqrestore(&channel->iob_lock, flags);
 519 }
 520 EXPORT_SYMBOL_GPL(qeth_release_buffer);
 521
 522 static struct qeth_cmd_buffer *qeth_get_buffer(struct qeth_channel *channel)
 523 {
 524         struct qeth_cmd_buffer *buffer = NULL;
 525         unsigned long flags;
 526
 527         spin_lock_irqsave(&channel->iob_lock, flags);
 528         buffer = __qeth_get_buffer(channel);
 529         spin_unlock_irqrestore(&channel->iob_lock, flags);
 530         return buffer;
 531 }
 532
 533 struct qeth_cmd_buffer *qeth_wait_for_buffer(struct qeth_channel *channel)
 534 {
 535         struct qeth_cmd_buffer *buffer;
 536         wait_event(channel->wait_q,
 537                    ((buffer = qeth_get_buffer(channel)) != NULL));
 538         return buffer;
 539 }
 540 EXPORT_SYMBOL_GPL(qeth_wait_for_buffer);
 541
 542 void qeth_clear_cmd_buffers(struct qeth_channel *channel)
 543 {
 544         int cnt;
 545
 546         for (cnt = 0; cnt < QETH_CMD_BUFFER_NO; cnt++)
 547                 qeth_release_buffer(channel, &channel->iob[cnt]);
 548         channel->buf_no = 0;
 549         channel->io_buf_no = 0;
 550 }
 551 EXPORT_SYMBOL_GPL(qeth_clear_cmd_buffers);
 552
 553 static void qeth_send_control_data_cb(struct qeth_channel *channel,
 554                   struct qeth_cmd_buffer *iob)
 555 {
 556         struct qeth_card *card;
 557         struct qeth_reply *reply, *r;
 558         struct qeth_ipa_cmd *cmd;
 559         unsigned long flags;
 560         int keep_reply;
 561
 562         QETH_DBF_TEXT(TRACE, 4, "sndctlcb");
 563
 564         card = CARD_FROM_CDEV(channel->ccwdev);
 565         if (qeth_check_idx_response(iob->data)) {
 566                 qeth_clear_ipacmd_list(card);
 567                 qeth_schedule_recovery(card);
 568                 goto out;
 569         }
 570
 571         cmd = qeth_check_ipa_data(card, iob);
 572         if ((cmd == NULL) && (card->state != CARD_STATE_DOWN))
 573                 goto out;
 574         /*in case of OSN : check if cmd is set */
 575         if (card->info.type == QETH_CARD_TYPE_OSN &&
 576             cmd &&
 577             cmd->hdr.command != IPA_CMD_STARTLAN &&
 578             card->osn_info.assist_cb != NULL) {
 579                 card->osn_info.assist_cb(card->dev, cmd);
 580                 goto out;
 581         }
 582
 583         spin_lock_irqsave(&card->lock, flags);
 584         list_for_each_entry_safe(reply, r, &card->cmd_waiter_list, list) {
 585                 if ((reply->seqno == QETH_IDX_COMMAND_SEQNO) ||
 586                     ((cmd) && (reply->seqno == cmd->hdr.seqno))) {
 587                         qeth_get_reply(reply);
 588                         list_del_init(&reply->list);
 589                         spin_unlock_irqrestore(&card->lock, flags);
 590                         keep_reply = 0;
 591                         if (reply->callback != NULL) {
 592                                 if (cmd) {
 593                                         reply->offset = (__u16)((char *)cmd -
 594                                                         (char *)iob->data);
 595                                         keep_reply = reply->callback(card,
 596                                                         reply,
 597                                                         (unsigned long)cmd);
 598                                 } else
 599                                         keep_reply = reply->callback(card,
 600                                                         reply,
 601                                                         (unsigned long)iob);
 602                         }
 603                         if (cmd)
 604                                 reply->rc = (u16) cmd->hdr.return_code;
 605                         else if (iob->rc)
 606                                 reply->rc = iob->rc;
 607                         if (keep_reply) {
 608                                 spin_lock_irqsave(&card->lock, flags);
 609                                 list_add_tail(&reply->list,
 610                                               &card->cmd_waiter_list);
 611                                 spin_unlock_irqrestore(&card->lock, flags);
 612                         } else {
 613                                 atomic_inc(&reply->received);
 614                                 wake_up(&reply->wait_q);
 615                         }
 616                         qeth_put_reply(reply);
 617                         goto out;
 618                 }
 619         }
 620         spin_unlock_irqrestore(&card->lock, flags);
 621 out:
 622         memcpy(&card->seqno.pdu_hdr_ack,
 623                 QETH_PDU_HEADER_SEQ_NO(iob->data),
 624                 QETH_SEQ_NO_LENGTH);
 625         qeth_release_buffer(channel, iob);
 626 }
 627
 628 static int qeth_setup_channel(struct qeth_channel *channel)
 629 {
 630         int cnt;
 631
 632         QETH_DBF_TEXT(SETUP, 2, "setupch");
 633         for (cnt = 0; cnt < QETH_CMD_BUFFER_NO; cnt++) {
 634                 channel->iob[cnt].data = (char *)
 635                         kmalloc(QETH_BUFSIZE, GFP_DMA|GFP_KERNEL);
 636                 if (channel->iob[cnt].data == NULL)
 637                         break;
 638                 channel->iob[cnt].state = BUF_STATE_FREE;
 639                 channel->iob[cnt].channel = channel;
 640                 channel->iob[cnt].callback = qeth_send_control_data_cb;
 641                 channel->iob[cnt].rc = 0;
 642         }
 643         if (cnt < QETH_CMD_BUFFER_NO) {
 644                 while (cnt-- > 0)
 645                         kfree(channel->iob[cnt].data);
 646                 return -ENOMEM;
 647         }
 648         channel->buf_no = 0;
 649         channel->io_buf_no = 0;
 650         atomic_set(&channel->irq_pending, 0);
 651         spin_lock_init(&channel->iob_lock);
 652
 653         init_waitqueue_head(&channel->wait_q);
 654         return 0;
 655 }
 656
 657 static int qeth_set_thread_start_bit(struct qeth_card *card,
 658                 unsigned long thread)
 659 {
 660         unsigned long flags;
 661
 662         spin_lock_irqsave(&card->thread_mask_lock, flags);
 663         if (!(card->thread_allowed_mask & thread) ||
 664               (card->thread_start_mask & thread)) {
 665                 spin_unlock_irqrestore(&card->thread_mask_lock, flags);
 666                 return -EPERM;
 667         }
 668         card->thread_start_mask |= thread;
 669         spin_unlock_irqrestore(&card->thread_mask_lock, flags);
 670         return 0;
 671 }
 672
 673 void qeth_clear_thread_start_bit(struct qeth_card *card, unsigned long thread)
 674 {
 675         unsigned long flags;
 676
 677         spin_lock_irqsave(&card->thread_mask_lock, flags);
 678         card->thread_start_mask &= ~thread;
 679         spin_unlock_irqrestore(&card->thread_mask_lock, flags);
 680         wake_up(&card->wait_q);
 681 }
 682 EXPORT_SYMBOL_GPL(qeth_clear_thread_start_bit);
 683
 684 void qeth_clear_thread_running_bit(struct qeth_card *card, unsigned long thread)
 685 {
 686         unsigned long flags;
 687
 688         spin_lock_irqsave(&card->thread_mask_lock, flags);
 689         card->thread_running_mask &= ~thread;
 690         spin_unlock_irqrestore(&card->thread_mask_lock, flags);
 691         wake_up(&card->wait_q);
 692 }
 693 EXPORT_SYMBOL_GPL(qeth_clear_thread_running_bit);
 694
 695 static int __qeth_do_run_thread(struct qeth_card *card, unsigned long thread)
 696 {
 697         unsigned long flags;
 698         int rc = 0;
 699
 700         spin_lock_irqsave(&card->thread_mask_lock, flags);
 701         if (card->thread_start_mask & thread) {
 702                 if ((card->thread_allowed_mask & thread) &&
 703                     !(card->thread_running_mask & thread)) {
 704                         rc = 1;
 705                         card->thread_start_mask &= ~thread;
 706                         card->thread_running_mask |= thread;
 707                 } else
 708                         rc = -EPERM;
 709         }
 710         spin_unlock_irqrestore(&card->thread_mask_lock, flags);
 711         return rc;
 712 }
 713
 714 int qeth_do_run_thread(struct qeth_card *card, unsigned long thread)
 715 {
 716         int rc = 0;
 717
 718         wait_event(card->wait_q,
 719                    (rc = __qeth_do_run_thread(card, thread)) >= 0);
 720         return rc;
 721 }
 722 EXPORT_SYMBOL_GPL(qeth_do_run_thread);
 723
 724 void qeth_schedule_recovery(struct qeth_card *card)
 725 {
 726         QETH_DBF_TEXT(TRACE, 2, "startrec");
 727         if (qeth_set_thread_start_bit(card, QETH_RECOVER_THREAD) == 0)
 728                 schedule_work(&card->kernel_thread_starter);
 729 }
 730 EXPORT_SYMBOL_GPL(qeth_schedule_recovery);
 731
 732 static int qeth_get_problem(struct ccw_device *cdev, struct irb *irb)
 733 {
 734         int dstat, cstat;
 735         char *sense;
 736
 737         sense = (char *) irb->ecw;
 738         cstat = irb->scsw.cmd.cstat;
 739         dstat = irb->scsw.cmd.dstat;
 740
 741         if (cstat & (SCHN_STAT_CHN_CTRL_CHK | SCHN_STAT_INTF_CTRL_CHK |
 742                      SCHN_STAT_CHN_DATA_CHK | SCHN_STAT_CHAIN_CHECK |
 743                      SCHN_STAT_PROT_CHECK | SCHN_STAT_PROG_CHECK)) {
 744                 QETH_DBF_TEXT(TRACE, 2, "CGENCHK");
 745                 PRINT_WARN("check on device %s, dstat=x%x, cstat=x%x ",
 746                            cdev->dev.bus_id, dstat, cstat);
 747                 print_hex_dump(KERN_WARNING, "qeth: irb ", DUMP_PREFIX_OFFSET,
 748                                 16, 1, irb, 64, 1);
 749                 return 1;
 750         }
 751
 752         if (dstat & DEV_STAT_UNIT_CHECK) {
 753                 if (sense[SENSE_RESETTING_EVENT_BYTE] &
 754                     SENSE_RESETTING_EVENT_FLAG) {
 755                         QETH_DBF_TEXT(TRACE, 2, "REVIND");
 756                         return 1;
 757                 }
 758                 if (sense[SENSE_COMMAND_REJECT_BYTE] &
 759                     SENSE_COMMAND_REJECT_FLAG) {
 760                         QETH_DBF_TEXT(TRACE, 2, "CMDREJi");
 761                         return 0;
 762                 }
 763                 if ((sense[2] == 0xaf) && (sense[3] == 0xfe)) {
 764                         QETH_DBF_TEXT(TRACE, 2, "AFFE");
 765                         return 1;
 766                 }
 767                 if ((!sense[0]) && (!sense[1]) && (!sense[2]) && (!sense[3])) {
 768                         QETH_DBF_TEXT(TRACE, 2, "ZEROSEN");
 769                         return 0;
 770                 }
 771                 QETH_DBF_TEXT(TRACE, 2, "DGENCHK");
 772                         return 1;
 773         }
 774         return 0;
 775 }
 776
 777 static long __qeth_check_irb_error(struct ccw_device *cdev,
 778                 unsigned long intparm, struct irb *irb)
 779 {
 780         if (!IS_ERR(irb))
 781                 return 0;
 782
 783         switch (PTR_ERR(irb)) {
 784         case -EIO:
 785                 PRINT_WARN("i/o-error on device %s\n", cdev->dev.bus_id);
 786                 QETH_DBF_TEXT(TRACE, 2, "ckirberr");
 787                 QETH_DBF_TEXT_(TRACE, 2, "  rc%d", -EIO);
 788                 break;
 789         case -ETIMEDOUT:
 790                 PRINT_WARN("timeout on device %s\n", cdev->dev.bus_id);
 791                 QETH_DBF_TEXT(TRACE, 2, "ckirberr");
 792                 QETH_DBF_TEXT_(TRACE, 2, "  rc%d", -ETIMEDOUT);
 793                 if (intparm == QETH_RCD_PARM) {
 794                         struct qeth_card *card = CARD_FROM_CDEV(cdev);
 795
 796                         if (card && (card->data.ccwdev == cdev)) {
 797                                 card->data.state = CH_STATE_DOWN;
 798                                 wake_up(&card->wait_q);
 799                         }
 800                 }
 801                 break;
 802         default:
 803                 PRINT_WARN("unknown error %ld on device %s\n", PTR_ERR(irb),
 804                            cdev->dev.bus_id);
 805                 QETH_DBF_TEXT(TRACE, 2, "ckirberr");
 806                 QETH_DBF_TEXT(TRACE, 2, "  rc???");
 807         }
 808         return PTR_ERR(irb);
 809 }
 810
 811 static void qeth_irq(struct ccw_device *cdev, unsigned long intparm,
 812                 struct irb *irb)
 813 {
 814         int rc;
 815         int cstat, dstat;
 816         struct qeth_cmd_buffer *buffer;
 817         struct qeth_channel *channel;
 818         struct qeth_card *card;
 819         struct qeth_cmd_buffer *iob;
 820         __u8 index;
 821
 822         QETH_DBF_TEXT(TRACE, 5, "irq");
 823
 824         if (__qeth_check_irb_error(cdev, intparm, irb))
 825                 return;
 826         cstat = irb->scsw.cmd.cstat;
 827         dstat = irb->scsw.cmd.dstat;
 828
 829         card = CARD_FROM_CDEV(cdev);
 830         if (!card)
 831                 return;
 832
 833         if (card->read.ccwdev == cdev) {
 834                 channel = &card->read;
 835                 QETH_DBF_TEXT(TRACE, 5, "read");
 836         } else if (card->write.ccwdev == cdev) {
 837                 channel = &card->write;
 838                 QETH_DBF_TEXT(TRACE, 5, "write");
 839         } else {
 840                 channel = &card->data;
 841                 QETH_DBF_TEXT(TRACE, 5, "data");
 842         }
 843         atomic_set(&channel->irq_pending, 0);
 844
 845         if (irb->scsw.cmd.fctl & (SCSW_FCTL_CLEAR_FUNC))
 846                 channel->state = CH_STATE_STOPPED;
 847
 848         if (irb->scsw.cmd.fctl & (SCSW_FCTL_HALT_FUNC))
 849                 channel->state = CH_STATE_HALTED;
 850
 851         /*let's wake up immediately on data channel*/
 852         if ((channel == &card->data) && (intparm != 0) &&
 853             (intparm != QETH_RCD_PARM))
 854                 goto out;
 855
 856         if (intparm == QETH_CLEAR_CHANNEL_PARM) {
 857                 QETH_DBF_TEXT(TRACE, 6, "clrchpar");
 858                 /* we don't have to handle this further */
 859                 intparm = 0;
 860         }
 861         if (intparm == QETH_HALT_CHANNEL_PARM) {
 862                 QETH_DBF_TEXT(TRACE, 6, "hltchpar");
 863                 /* we don't have to handle this further */
 864                 intparm = 0;
 865         }
 866         if ((dstat & DEV_STAT_UNIT_EXCEP) ||
 867             (dstat & DEV_STAT_UNIT_CHECK) ||
 868             (cstat)) {
 869                 if (irb->esw.esw0.erw.cons) {
 870                         /* TODO: we should make this s390dbf */
 871                         PRINT_WARN("sense data available on channel %s.\n",
 872                                    CHANNEL_ID(channel));
 873                         PRINT_WARN(" cstat 0x%X\n dstat 0x%X\n", cstat, dstat);
 874                         print_hex_dump(KERN_WARNING, "qeth: irb ",
 875                                 DUMP_PREFIX_OFFSET, 16, 1, irb, 32, 1);
 876                         print_hex_dump(KERN_WARNING, "qeth: sense data ",
 877                                 DUMP_PREFIX_OFFSET, 16, 1, irb->ecw, 32, 1);
 878                 }
 879                 if (intparm == QETH_RCD_PARM) {
 880                         channel->state = CH_STATE_DOWN;
 881                         goto out;
 882                 }
 883                 rc = qeth_get_problem(cdev, irb);
 884                 if (rc) {
 885                         qeth_schedule_recovery(card);
 886                         goto out;
 887                 }
 888         }
 889
 890         if (intparm == QETH_RCD_PARM) {
 891                 channel->state = CH_STATE_RCD_DONE;
 892                 goto out;
 893         }
 894         if (intparm) {
 895                 buffer = (struct qeth_cmd_buffer *) __va((addr_t)intparm);
 896                 buffer->state = BUF_STATE_PROCESSED;
 897         }
 898         if (channel == &card->data)
 899                 return;
 900         if (channel == &card->read &&
 901             channel->state == CH_STATE_UP)
 902                 qeth_issue_next_read(card);
 903
 904         iob = channel->iob;
 905         index = channel->buf_no;
 906         while (iob[index].state == BUF_STATE_PROCESSED) {
 907                 if (iob[index].callback != NULL)
 908                         iob[index].callback(channel, iob + index);
 909
 910                 index = (index + 1) % QETH_CMD_BUFFER_NO;
 911         }
 912         channel->buf_no = index;
 913 out:
 914         wake_up(&card->wait_q);
 915         return;
 916 }
 917
 918 static void qeth_clear_output_buffer(struct qeth_qdio_out_q *queue,
 919                  struct qeth_qdio_out_buffer *buf)
 920 {
 921         int i;
 922         struct sk_buff *skb;
 923
 924         /* is PCI flag set on buffer? */
 925         if (buf->buffer->element[0].flags & 0x40)
 926                 atomic_dec(&queue->set_pci_flags_count);
 927
 928         skb = skb_dequeue(&buf->skb_list);
 929         while (skb) {
 930                 atomic_dec(&skb->users);
 931                 dev_kfree_skb_any(skb);
 932                 skb = skb_dequeue(&buf->skb_list);
 933         }
 934         qeth_eddp_buf_release_contexts(buf);
 935         for (i = 0; i < QETH_MAX_BUFFER_ELEMENTS(queue->card); ++i) {
 936                 buf->buffer->element[i].length = 0;
 937                 buf->buffer->element[i].addr = NULL;
 938                 buf->buffer->element[i].flags = 0;
 939         }
 940         buf->next_element_to_fill = 0;
 941         atomic_set(&buf->state, QETH_QDIO_BUF_EMPTY);
 942 }
 943
 944 void qeth_clear_qdio_buffers(struct qeth_card *card)
 945 {
 946         int i, j;
 947
 948         QETH_DBF_TEXT(TRACE, 2, "clearqdbf");
 949         /* clear outbound buffers to free skbs */
 950         for (i = 0; i < card->qdio.no_out_queues; ++i)
 951                 if (card->qdio.out_qs[i]) {
 952                         for (j = 0; j < QDIO_MAX_BUFFERS_PER_Q; ++j)
 953                                 qeth_clear_output_buffer(card->qdio.out_qs[i],
 954                                                 &card->qdio.out_qs[i]->bufs[j]);
 955                 }
 956 }
 957 EXPORT_SYMBOL_GPL(qeth_clear_qdio_buffers);
 958
 959 static void qeth_free_buffer_pool(struct qeth_card *card)
 960 {
 961         struct qeth_buffer_pool_entry *pool_entry, *tmp;
 962         int i = 0;
 963         QETH_DBF_TEXT(TRACE, 5, "freepool");
 964         list_for_each_entry_safe(pool_entry, tmp,
 965                                  &card->qdio.init_pool.entry_list, init_list){
 966                 for (i = 0; i < QETH_MAX_BUFFER_ELEMENTS(card); ++i)
 967                         free_page((unsigned long)pool_entry->elements[i]);
 968                 list_del(&pool_entry->init_list);
 969                 kfree(pool_entry);
 970         }
 971 }
 972
 973 static void qeth_free_qdio_buffers(struct qeth_card *card)
 974 {
 975         int i, j;
 976
 977         QETH_DBF_TEXT(TRACE, 2, "freeqdbf");
 978         if (atomic_xchg(&card->qdio.state, QETH_QDIO_UNINITIALIZED) ==
 979                 QETH_QDIO_UNINITIALIZED)
 980                 return;
 981         kfree(card->qdio.in_q);
 982         card->qdio.in_q = NULL;
 983         /* inbound buffer pool */
 984         qeth_free_buffer_pool(card);
 985         /* free outbound qdio_qs */
 986         if (card->qdio.out_qs) {
 987                 for (i = 0; i < card->qdio.no_out_queues; ++i) {
 988                         for (j = 0; j < QDIO_MAX_BUFFERS_PER_Q; ++j)
 989                                 qeth_clear_output_buffer(card->qdio.out_qs[i],
 990                                                 &card->qdio.out_qs[i]->bufs[j]);
 991                         kfree(card->qdio.out_qs[i]);
 992                 }
 993                 kfree(card->qdio.out_qs);
 994                 card->qdio.out_qs = NULL;
 995         }
 996 }
 997
 998 static void qeth_clean_channel(struct qeth_channel *channel)
 999 {
1000         int cnt;
1001
1002         QETH_DBF_TEXT(SETUP, 2, "freech");
1003         for (cnt = 0; cnt < QETH_CMD_BUFFER_NO; cnt++)
1004                 kfree(channel->iob[cnt].data);
1005 }
1006
1007 static int qeth_is_1920_device(struct qeth_card *card)
1008 {
1009         int single_queue = 0;
1010         struct ccw_device *ccwdev;
1011         struct channelPath_dsc {
1012                 u8 flags;
1013                 u8 lsn;
1014                 u8 desc;
1015                 u8 chpid;
1016                 u8 swla;
1017                 u8 zeroes;
1018                 u8 chla;
1019                 u8 chpp;
1020         } *chp_dsc;
1021
1022         QETH_DBF_TEXT(SETUP, 2, "chk_1920");
1023
1024         ccwdev = card->data.ccwdev;
1025         chp_dsc = (struct channelPath_dsc *)ccw_device_get_chp_desc(ccwdev, 0);
1026         if (chp_dsc != NULL) {
1027                 /* CHPP field bit 6 == 1 -> single queue */
1028                 single_queue = ((chp_dsc->chpp & 0x02) == 0x02);
1029                 kfree(chp_dsc);
1030         }
1031         QETH_DBF_TEXT_(SETUP, 2, "rc:%x", single_queue);
1032         return single_queue;
1033 }
1034
1035 static void qeth_init_qdio_info(struct qeth_card *card)
1036 {
1037         QETH_DBF_TEXT(SETUP, 4, "intqdinf");
1038         atomic_set(&card->qdio.state, QETH_QDIO_UNINITIALIZED);
1039         /* inbound */
1040         card->qdio.in_buf_size = QETH_IN_BUF_SIZE_DEFAULT;
1041         card->qdio.init_pool.buf_count = QETH_IN_BUF_COUNT_DEFAULT;
1042         card->qdio.in_buf_pool.buf_count = card->qdio.init_pool.buf_count;
1043         INIT_LIST_HEAD(&card->qdio.in_buf_pool.entry_list);
1044         INIT_LIST_HEAD(&card->qdio.init_pool.entry_list);
1045 }
1046
1047 static void qeth_set_intial_options(struct qeth_card *card)
1048 {
1049         card->options.route4.type = NO_ROUTER;
1050         card->options.route6.type = NO_ROUTER;
1051         card->options.checksum_type = QETH_CHECKSUM_DEFAULT;
1052         card->options.broadcast_mode = QETH_TR_BROADCAST_ALLRINGS;
1053         card->options.macaddr_mode = QETH_TR_MACADDR_NONCANONICAL;
1054         card->options.fake_broadcast = 0;
1055         card->options.add_hhlen = DEFAULT_ADD_HHLEN;
1056         card->options.fake_ll = 0;
1057         card->options.performance_stats = 0;
1058         card->options.rx_sg_cb = QETH_RX_SG_CB;
1059 }
1060
1061 static int qeth_do_start_thread(struct qeth_card *card, unsigned long thread)
1062 {
1063         unsigned long flags;
1064         int rc = 0;
1065
1066         spin_lock_irqsave(&card->thread_mask_lock, flags);
1067         QETH_DBF_TEXT_(TRACE, 4, "  %02x%02x%02x",
1068                         (u8) card->thread_start_mask,
1069                         (u8) card->thread_allowed_mask,
1070                         (u8) card->thread_running_mask);
1071         rc = (card->thread_start_mask & thread);
1072         spin_unlock_irqrestore(&card->thread_mask_lock, flags);
1073         return rc;
1074 }
1075
1076 static void qeth_start_kernel_thread(struct work_struct *work)
1077 {
1078         struct qeth_card *card = container_of(work, struct qeth_card,
1079                                         kernel_thread_starter);
1080         QETH_DBF_TEXT(TRACE , 2, "strthrd");
1081
1082         if (card->read.state != CH_STATE_UP &&
1083             card->write.state != CH_STATE_UP)
1084                 return;
1085         if (qeth_do_start_thread(card, QETH_RECOVER_THREAD))
1086                 kthread_run(card->discipline.recover, (void *) card,
1087                                 "qeth_recover");
1088 }
1089
1090 static int qeth_setup_card(struct qeth_card *card)
1091 {
1092
1093         QETH_DBF_TEXT(SETUP, 2, "setupcrd");
1094         QETH_DBF_HEX(SETUP, 2, &card, sizeof(void *));
1095
1096         card->read.state  = CH_STATE_DOWN;
1097         card->write.state = CH_STATE_DOWN;
1098         card->data.state  = CH_STATE_DOWN;
1099         card->state = CARD_STATE_DOWN;
1100         card->lan_online = 0;
1101         card->use_hard_stop = 0;
1102         card->dev = NULL;
1103         spin_lock_init(&card->vlanlock);
1104         spin_lock_init(&card->mclock);
1105         card->vlangrp = NULL;
1106         spin_lock_init(&card->lock);
1107         spin_lock_init(&card->ip_lock);
1108         spin_lock_init(&card->thread_mask_lock);
1109         card->thread_start_mask = 0;
1110         card->thread_allowed_mask = 0;
1111         card->thread_running_mask = 0;
1112         INIT_WORK(&card->kernel_thread_starter, qeth_start_kernel_thread);
1113         INIT_LIST_HEAD(&card->ip_list);
1114         card->ip_tbd_list = kmalloc(sizeof(struct list_head), GFP_KERNEL);
1115         if (!card->ip_tbd_list) {
1116                 QETH_DBF_TEXT(SETUP, 0, "iptbdnom");
1117                 return -ENOMEM;
1118         }
1119         INIT_LIST_HEAD(card->ip_tbd_list);
1120         INIT_LIST_HEAD(&card->cmd_waiter_list);
1121         init_waitqueue_head(&card->wait_q);
1122         /* intial options */
1123         qeth_set_intial_options(card);
1124         /* IP address takeover */
1125         INIT_LIST_HEAD(&card->ipato.entries);
1126         card->ipato.enabled = 0;
1127         card->ipato.invert4 = 0;
1128         card->ipato.invert6 = 0;
1129         /* init QDIO stuff */
1130         qeth_init_qdio_info(card);
1131         return 0;
1132 }
1133
1134 static struct qeth_card *qeth_alloc_card(void)
1135 {
1136         struct qeth_card *card;
1137
1138         QETH_DBF_TEXT(SETUP, 2, "alloccrd");
1139         card = kzalloc(sizeof(struct qeth_card), GFP_DMA|GFP_KERNEL);
1140         if (!card)
1141                 return NULL;
1142         QETH_DBF_HEX(SETUP, 2, &card, sizeof(void *));
1143         if (qeth_setup_channel(&card->read)) {
1144                 kfree(card);
1145                 return NULL;
1146         }
1147         if (qeth_setup_channel(&card->write)) {
1148                 qeth_clean_channel(&card->read);
1149                 kfree(card);
1150                 return NULL;
1151         }
1152         card->options.layer2 = -1;
1153         return card;
1154 }
1155
1156 static int qeth_determine_card_type(struct qeth_card *card)
1157 {
1158         int i = 0;
1159
1160         QETH_DBF_TEXT(SETUP, 2, "detcdtyp");
1161
1162         card->qdio.do_prio_queueing = QETH_PRIOQ_DEFAULT;
1163         card->qdio.default_out_queue = QETH_DEFAULT_QUEUE;
1164         while (known_devices[i][4]) {
1165                 if ((CARD_RDEV(card)->id.dev_type == known_devices[i][2]) &&
1166                     (CARD_RDEV(card)->id.dev_model == known_devices[i][3])) {
1167                         card->info.type = known_devices[i][4];
1168                         card->qdio.no_out_queues = known_devices[i][8];
1169                         card->info.is_multicast_different = known_devices[i][9];
1170                         if (qeth_is_1920_device(card)) {
1171                                 PRINT_INFO("Priority Queueing not able "
1172                                            "due to hardware limitations!\n");
1173                                 card->qdio.no_out_queues = 1;
1174                                 card->qdio.default_out_queue = 0;
1175                         }
1176                         return 0;
1177                 }
1178                 i++;
1179         }
1180         card->info.type = QETH_CARD_TYPE_UNKNOWN;
1181         PRINT_ERR("unknown card type on device %s\n", CARD_BUS_ID(card));
1182         return -ENOENT;
1183 }
1184
1185 static int qeth_clear_channel(struct qeth_channel *channel)
1186 {
1187         unsigned long flags;
1188         struct qeth_card *card;
1189         int rc;
1190
1191         QETH_DBF_TEXT(TRACE, 3, "clearch");
1192         card = CARD_FROM_CDEV(channel->ccwdev);
1193         spin_lock_irqsave(get_ccwdev_lock(channel->ccwdev), flags);
1194         rc = ccw_device_clear(channel->ccwdev, QETH_CLEAR_CHANNEL_PARM);
1195         spin_unlock_irqrestore(get_ccwdev_lock(channel->ccwdev), flags);
1196
1197         if (rc)
1198                 return rc;
1199         rc = wait_event_interruptible_timeout(card->wait_q,
1200                         channel->state == CH_STATE_STOPPED, QETH_TIMEOUT);
1201         if (rc == -ERESTARTSYS)
1202                 return rc;
1203         if (channel->state != CH_STATE_STOPPED)
1204                 return -ETIME;
1205         channel->state = CH_STATE_DOWN;
1206         return 0;
1207 }
1208
1209 static int qeth_halt_channel(struct qeth_channel *channel)
1210 {
1211         unsigned long flags;
1212         struct qeth_card *card;
1213         int rc;
1214
1215         QETH_DBF_TEXT(TRACE, 3, "haltch");
1216         card = CARD_FROM_CDEV(channel->ccwdev);
1217         spin_lock_irqsave(get_ccwdev_lock(channel->ccwdev), flags);
1218         rc = ccw_device_halt(channel->ccwdev, QETH_HALT_CHANNEL_PARM);
1219         spin_unlock_irqrestore(get_ccwdev_lock(channel->ccwdev), flags);
1220
1221         if (rc)
1222                 return rc;
1223         rc = wait_event_interruptible_timeout(card->wait_q,
1224                         channel->state == CH_STATE_HALTED, QETH_TIMEOUT);
1225         if (rc == -ERESTARTSYS)
1226                 return rc;
1227         if (channel->state != CH_STATE_HALTED)
1228                 return -ETIME;
1229         return 0;
1230 }
1231
1232 static int qeth_halt_channels(struct qeth_card *card)
1233 {
1234         int rc1 = 0, rc2 = 0, rc3 = 0;
1235
1236         QETH_DBF_TEXT(TRACE, 3, "haltchs");
1237         rc1 = qeth_halt_channel(&card->read);
1238         rc2 = qeth_halt_channel(&card->write);
1239         rc3 = qeth_halt_channel(&card->data);
1240         if (rc1)
1241                 return rc1;
1242         if (rc2)
1243                 return rc2;
1244         return rc3;
1245 }
1246
1247 static int qeth_clear_channels(struct qeth_card *card)
1248 {
1249         int rc1 = 0, rc2 = 0, rc3 = 0;
1250
1251         QETH_DBF_TEXT(TRACE, 3, "clearchs");
1252         rc1 = qeth_clear_channel(&card->read);
1253         rc2 = qeth_clear_channel(&card->write);
1254         rc3 = qeth_clear_channel(&card->data);
1255         if (rc1)
1256                 return rc1;
1257         if (rc2)
1258                 return rc2;
1259         return rc3;
1260 }
1261
1262 static int qeth_clear_halt_card(struct qeth_card *card, int halt)
1263 {
1264         int rc = 0;
1265
1266         QETH_DBF_TEXT(TRACE, 3, "clhacrd");
1267         QETH_DBF_HEX(TRACE, 3, &card, sizeof(void *));
1268
1269         if (halt)
1270                 rc = qeth_halt_channels(card);
1271         if (rc)
1272                 return rc;
1273         return qeth_clear_channels(card);
1274 }
1275
1276 int qeth_qdio_clear_card(struct qeth_card *card, int use_halt)
1277 {
1278         int rc = 0;
1279
1280         QETH_DBF_TEXT(TRACE, 3, "qdioclr");
1281         switch (atomic_cmpxchg(&card->qdio.state, QETH_QDIO_ESTABLISHED,
1282                 QETH_QDIO_CLEANING)) {
1283         case QETH_QDIO_ESTABLISHED:
1284                 if (card->info.type == QETH_CARD_TYPE_IQD)
1285                         rc = qdio_cleanup(CARD_DDEV(card),
1286                                 QDIO_FLAG_CLEANUP_USING_HALT);
1287                 else
1288                         rc = qdio_cleanup(CARD_DDEV(card),
1289                                 QDIO_FLAG_CLEANUP_USING_CLEAR);
1290                 if (rc)
1291                         QETH_DBF_TEXT_(TRACE, 3, "1err%d", rc);
1292                 atomic_set(&card->qdio.state, QETH_QDIO_ALLOCATED);
1293                 break;
1294         case QETH_QDIO_CLEANING:
1295                 return rc;
1296         default:
1297                 break;
1298         }
1299         rc = qeth_clear_halt_card(card, use_halt);
1300         if (rc)
1301                 QETH_DBF_TEXT_(TRACE, 3, "2err%d", rc);
1302         card->state = CARD_STATE_DOWN;
1303         return rc;
1304 }
1305 EXPORT_SYMBOL_GPL(qeth_qdio_clear_card);
1306
1307 static int qeth_read_conf_data(struct qeth_card *card, void **buffer,
1308                                int *length)
1309 {
1310         struct ciw *ciw;
1311         char *rcd_buf;
1312         int ret;
1313         struct qeth_channel *channel = &card->data;
1314         unsigned long flags;
1315
1316         /*
1317          * scan for RCD command in extended SenseID data
1318          */
1319         ciw = ccw_device_get_ciw(channel->ccwdev, CIW_TYPE_RCD);
1320         if (!ciw || ciw->cmd == 0)
1321                 return -EOPNOTSUPP;
1322         rcd_buf = kzalloc(ciw->count, GFP_KERNEL | GFP_DMA);
1323         if (!rcd_buf)
1324                 return -ENOMEM;
1325
1326         channel->ccw.cmd_code = ciw->cmd;
1327         channel->ccw.cda = (__u32) __pa(rcd_buf);
1328         channel->ccw.count = ciw->count;
1329         channel->ccw.flags = CCW_FLAG_SLI;
1330         channel->state = CH_STATE_RCD;
1331         spin_lock_irqsave(get_ccwdev_lock(channel->ccwdev), flags);
1332         ret = ccw_device_start_timeout(channel->ccwdev, &channel->ccw,
1333                                        QETH_RCD_PARM, LPM_ANYPATH, 0,
1334                                        QETH_RCD_TIMEOUT);
1335         spin_unlock_irqrestore(get_ccwdev_lock(channel->ccwdev), flags);
1336         if (!ret)
1337                 wait_event(card->wait_q,
1338                            (channel->state == CH_STATE_RCD_DONE ||
1339                             channel->state == CH_STATE_DOWN));
1340         if (channel->state == CH_STATE_DOWN)
1341                 ret = -EIO;
1342         else
1343                 channel->state = CH_STATE_DOWN;
1344         if (ret) {
1345                 kfree(rcd_buf);
1346                 *buffer = NULL;
1347                 *length = 0;
1348         } else {
1349                 *length = ciw->count;
1350                 *buffer = rcd_buf;
1351         }
1352         return ret;
1353 }
1354
1355 static int qeth_get_unitaddr(struct qeth_card *card)
1356 {
1357         int length;
1358         char *prcd;
1359         int rc;
1360
1361         QETH_DBF_TEXT(SETUP, 2, "getunit");
1362         rc = qeth_read_conf_data(card, (void **) &prcd, &length);
1363         if (rc) {
1364                 PRINT_ERR("qeth_read_conf_data for device %s returned %i\n",
1365                         CARD_DDEV_ID(card), rc);
1366                 return rc;
1367         }
1368         card->info.chpid = prcd[30];
1369         card->info.unit_addr2 = prcd[31];
1370         card->info.cula = prcd[63];
1371         card->info.guestlan = ((prcd[0x10] == _ascebc['V']) &&
1372                                (prcd[0x11] == _ascebc['M']));
1373         kfree(prcd);
1374         return 0;
1375 }
1376
1377 static void qeth_init_tokens(struct qeth_card *card)
1378 {
1379         card->token.issuer_rm_w = 0x00010103UL;
1380         card->token.cm_filter_w = 0x00010108UL;
1381         card->token.cm_connection_w = 0x0001010aUL;
1382         card->token.ulp_filter_w = 0x0001010bUL;
1383         card->token.ulp_connection_w = 0x0001010dUL;
1384 }
1385
1386 static void qeth_init_func_level(struct qeth_card *card)
1387 {
1388         if (card->ipato.enabled) {
1389                 if (card->info.type == QETH_CARD_TYPE_IQD)
1390                                 card->info.func_level =
1391                                         QETH_IDX_FUNC_LEVEL_IQD_ENA_IPAT;
1392                 else
1393                                 card->info.func_level =
1394                                         QETH_IDX_FUNC_LEVEL_OSAE_ENA_IPAT;
1395         } else {
1396                 if (card->info.type == QETH_CARD_TYPE_IQD)
1397                 /*FIXME:why do we have same values for  dis and ena for
1398                   osae??? */
1399                         card->info.func_level =
1400                                 QETH_IDX_FUNC_LEVEL_IQD_DIS_IPAT;
1401                 else
1402                         card->info.func_level =
1403                                 QETH_IDX_FUNC_LEVEL_OSAE_DIS_IPAT;
1404         }
1405 }
1406
1407 static int qeth_idx_activate_get_answer(struct qeth_channel *channel,
1408                 void (*idx_reply_cb)(struct qeth_channel *,
1409                         struct qeth_cmd_buffer *))
1410 {
1411         struct qeth_cmd_buffer *iob;
1412         unsigned long flags;
1413         int rc;
1414         struct qeth_card *card;
1415
1416         QETH_DBF_TEXT(SETUP, 2, "idxanswr");
1417         card = CARD_FROM_CDEV(channel->ccwdev);
1418         iob = qeth_get_buffer(channel);
1419         iob->callback = idx_reply_cb;
1420         memcpy(&channel->ccw, READ_CCW, sizeof(struct ccw1));
1421         channel->ccw.count = QETH_BUFSIZE;
1422         channel->ccw.cda = (__u32) __pa(iob->data);
1423
1424         wait_event(card->wait_q,
1425                    atomic_cmpxchg(&channel->irq_pending, 0, 1) == 0);
1426         QETH_DBF_TEXT(SETUP, 6, "noirqpnd");
1427         spin_lock_irqsave(get_ccwdev_lock(channel->ccwdev), flags);
1428         rc = ccw_device_start(channel->ccwdev,
1429                               &channel->ccw, (addr_t) iob, 0, 0);
1430         spin_unlock_irqrestore(get_ccwdev_lock(channel->ccwdev), flags);
1431
1432         if (rc) {
1433                 QETH_DBF_MESSAGE(2, "Error2 in activating channel rc=%d\n", rc);
1434                 QETH_DBF_TEXT_(SETUP, 2, "2err%d", rc);
1435                 atomic_set(&channel->irq_pending, 0);
1436                 wake_up(&card->wait_q);
1437                 return rc;
1438         }
1439         rc = wait_event_interruptible_timeout(card->wait_q,
1440                          channel->state == CH_STATE_UP, QETH_TIMEOUT);
1441         if (rc == -ERESTARTSYS)
1442                 return rc;
1443         if (channel->state != CH_STATE_UP) {
1444                 rc = -ETIME;
1445                 QETH_DBF_TEXT_(SETUP, 2, "3err%d", rc);
1446                 qeth_clear_cmd_buffers(channel);
1447         } else
1448                 rc = 0;
1449         return rc;
1450 }
1451
1452 static int qeth_idx_activate_channel(struct qeth_channel *channel,
1453                 void (*idx_reply_cb)(struct qeth_channel *,
1454                         struct qeth_cmd_buffer *))
1455 {
1456         struct qeth_card *card;
1457         struct qeth_cmd_buffer *iob;
1458         unsigned long flags;
1459         __u16 temp;
1460         __u8 tmp;
1461         int rc;
1462         struct ccw_dev_id temp_devid;
1463
1464         card = CARD_FROM_CDEV(channel->ccwdev);
1465
1466         QETH_DBF_TEXT(SETUP, 2, "idxactch");
1467
1468         iob = qeth_get_buffer(channel);
1469         iob->callback = idx_reply_cb;
1470         memcpy(&channel->ccw, WRITE_CCW, sizeof(struct ccw1));
1471         channel->ccw.count = IDX_ACTIVATE_SIZE;
1472         channel->ccw.cda = (__u32) __pa(iob->data);
1473         if (channel == &card->write) {
1474                 memcpy(iob->data, IDX_ACTIVATE_WRITE, IDX_ACTIVATE_SIZE);
1475                 memcpy(QETH_TRANSPORT_HEADER_SEQ_NO(iob->data),
1476                        &card->seqno.trans_hdr, QETH_SEQ_NO_LENGTH);
1477                 card->seqno.trans_hdr++;
1478         } else {
1479                 memcpy(iob->data, IDX_ACTIVATE_READ, IDX_ACTIVATE_SIZE);
1480                 memcpy(QETH_TRANSPORT_HEADER_SEQ_NO(iob->data),
1481                        &card->seqno.trans_hdr, QETH_SEQ_NO_LENGTH);
1482         }
1483         tmp = ((__u8)card->info.portno) | 0x80;
1484         memcpy(QETH_IDX_ACT_PNO(iob->data), &tmp, 1);
1485         memcpy(QETH_IDX_ACT_ISSUER_RM_TOKEN(iob->data),
1486                &card->token.issuer_rm_w, QETH_MPC_TOKEN_LENGTH);
1487         memcpy(QETH_IDX_ACT_FUNC_LEVEL(iob->data),
1488                &card->info.func_level, sizeof(__u16));
1489         ccw_device_get_id(CARD_DDEV(card), &temp_devid);
1490         memcpy(QETH_IDX_ACT_QDIO_DEV_CUA(iob->data), &temp_devid.devno, 2);
1491         temp = (card->info.cula << 8) + card->info.unit_addr2;
1492         memcpy(QETH_IDX_ACT_QDIO_DEV_REALADDR(iob->data), &temp, 2);
1493
1494         wait_event(card->wait_q,
1495                    atomic_cmpxchg(&channel->irq_pending, 0, 1) == 0);
1496         QETH_DBF_TEXT(SETUP, 6, "noirqpnd");
1497         spin_lock_irqsave(get_ccwdev_lock(channel->ccwdev), flags);
1498         rc = ccw_device_start(channel->ccwdev,
1499                               &channel->ccw, (addr_t) iob, 0, 0);
1500         spin_unlock_irqrestore(get_ccwdev_lock(channel->ccwdev), flags);
1501
1502         if (rc) {
1503                 QETH_DBF_MESSAGE(2, "Error1 in activating channel. rc=%d\n",
1504                         rc);
1505                 QETH_DBF_TEXT_(SETUP, 2, "1err%d", rc);
1506                 atomic_set(&channel->irq_pending, 0);
1507                 wake_up(&card->wait_q);
1508                 return rc;
1509         }
1510         rc = wait_event_interruptible_timeout(card->wait_q,
1511                         channel->state == CH_STATE_ACTIVATING, QETH_TIMEOUT);
1512         if (rc == -ERESTARTSYS)
1513                 return rc;
1514         if (channel->state != CH_STATE_ACTIVATING) {
1515                 PRINT_WARN("IDX activate timed out!\n");
1516                 QETH_DBF_TEXT_(SETUP, 2, "2err%d", -ETIME);
1517                 qeth_clear_cmd_buffers(channel);
1518                 return -ETIME;
1519         }
1520         return qeth_idx_activate_get_answer(channel, idx_reply_cb);
1521 }
1522
1523 static int qeth_peer_func_level(int level)
1524 {
1525         if ((level & 0xff) == 8)
1526                 return (level & 0xff) + 0x400;
1527         if (((level >> 8) & 3) == 1)
1528                 return (level & 0xff) + 0x200;
1529         return level;
1530 }
1531
1532 static void qeth_idx_write_cb(struct qeth_channel *channel,
1533                 struct qeth_cmd_buffer *iob)
1534 {
1535         struct qeth_card *card;
1536         __u16 temp;
1537
1538         QETH_DBF_TEXT(SETUP , 2, "idxwrcb");
1539
1540         if (channel->state == CH_STATE_DOWN) {
1541                 channel->state = CH_STATE_ACTIVATING;
1542                 goto out;
1543         }
1544         card = CARD_FROM_CDEV(channel->ccwdev);
1545
1546         if (!(QETH_IS_IDX_ACT_POS_REPLY(iob->data))) {
1547                 if (QETH_IDX_ACT_CAUSE_CODE(iob->data) == 0x19)
1548                         PRINT_ERR("IDX_ACTIVATE on write channel device %s: "
1549                                 "adapter exclusively used by another host\n",
1550                         CARD_WDEV_ID(card));
1551                 else
1552                         PRINT_ERR("IDX_ACTIVATE on write channel device %s: "
1553                                 "negative reply\n", CARD_WDEV_ID(card));
1554                 goto out;
1555         }
1556         memcpy(&temp, QETH_IDX_ACT_FUNC_LEVEL(iob->data), 2);
1557         if ((temp & ~0x0100) != qeth_peer_func_level(card->info.func_level)) {
1558                 PRINT_WARN("IDX_ACTIVATE on write channel device %s: "
1559                            "function level mismatch "
1560                            "(sent: 0x%x, received: 0x%x)\n",
1561                            CARD_WDEV_ID(card), card->info.func_level, temp);
1562                 goto out;
1563         }
1564         channel->state = CH_STATE_UP;
1565 out:
1566         qeth_release_buffer(channel, iob);
1567 }
1568
1569 static void qeth_idx_read_cb(struct qeth_channel *channel,
1570                 struct qeth_cmd_buffer *iob)
1571 {
1572         struct qeth_card *card;
1573         __u16 temp;
1574
1575         QETH_DBF_TEXT(SETUP , 2, "idxrdcb");
1576         if (channel->state == CH_STATE_DOWN) {
1577                 channel->state = CH_STATE_ACTIVATING;
1578                 goto out;
1579         }
1580
1581         card = CARD_FROM_CDEV(channel->ccwdev);
1582         if (qeth_check_idx_response(iob->data))
1583                         goto out;
1584
1585         if (!(QETH_IS_IDX_ACT_POS_REPLY(iob->data))) {
1586                 if (QETH_IDX_ACT_CAUSE_CODE(iob->data) == 0x19)
1587                         PRINT_ERR("IDX_ACTIVATE on read channel device %s: "
1588                                 "adapter exclusively used by another host\n",
1589                                 CARD_RDEV_ID(card));
1590                 else
1591                         PRINT_ERR("IDX_ACTIVATE on read channel device %s: "
1592                                 "negative reply\n", CARD_RDEV_ID(card));
1593                 goto out;
1594         }
1595
1596 /**
1597  * temporary fix for microcode bug
1598  * to revert it,replace OR by AND
1599  */
1600         if ((!QETH_IDX_NO_PORTNAME_REQUIRED(iob->data)) ||
1601              (card->info.type == QETH_CARD_TYPE_OSAE))
1602                 card->info.portname_required = 1;
1603
1604         memcpy(&temp, QETH_IDX_ACT_FUNC_LEVEL(iob->data), 2);
1605         if (temp != qeth_peer_func_level(card->info.func_level)) {
1606                 PRINT_WARN("IDX_ACTIVATE on read channel device %s: function "
1607                            "level mismatch (sent: 0x%x, received: 0x%x)\n",
1608                            CARD_RDEV_ID(card), card->info.func_level, temp);
1609                 goto out;
1610         }
1611         memcpy(&card->token.issuer_rm_r,
1612                QETH_IDX_ACT_ISSUER_RM_TOKEN(iob->data),
1613                QETH_MPC_TOKEN_LENGTH);
1614         memcpy(&card->info.mcl_level[0],
1615                QETH_IDX_REPLY_LEVEL(iob->data), QETH_MCL_LENGTH);
1616         channel->state = CH_STATE_UP;
1617 out:
1618         qeth_release_buffer(channel, iob);
1619 }
1620
1621 void qeth_prepare_control_data(struct qeth_card *card, int len,
1622                 struct qeth_cmd_buffer *iob)
1623 {
1624         qeth_setup_ccw(&card->write, iob->data, len);
1625         iob->callback = qeth_release_buffer;
1626
1627         memcpy(QETH_TRANSPORT_HEADER_SEQ_NO(iob->data),
1628                &card->seqno.trans_hdr, QETH_SEQ_NO_LENGTH);
1629         card->seqno.trans_hdr++;
1630         memcpy(QETH_PDU_HEADER_SEQ_NO(iob->data),
1631                &card->seqno.pdu_hdr, QETH_SEQ_NO_LENGTH);
1632         card->seqno.pdu_hdr++;
1633         memcpy(QETH_PDU_HEADER_ACK_SEQ_NO(iob->data),
1634                &card->seqno.pdu_hdr_ack, QETH_SEQ_NO_LENGTH);
1635         QETH_DBF_HEX(CTRL, 2, iob->data, QETH_DBF_CTRL_LEN);
1636 }
1637 EXPORT_SYMBOL_GPL(qeth_prepare_control_data);
1638
1639 int qeth_send_control_data(struct qeth_card *card, int len,
1640                 struct qeth_cmd_buffer *iob,
1641                 int (*reply_cb)(struct qeth_card *, struct qeth_reply *,
1642                         unsigned long),
1643                 void *reply_param)
1644 {
1645         int rc;
1646         unsigned long flags;
1647         struct qeth_reply *reply = NULL;
1648         unsigned long timeout;
1649
1650         QETH_DBF_TEXT(TRACE, 2, "sendctl");
1651
1652         reply = qeth_alloc_reply(card);
1653         if (!reply) {
1654                 return -ENOMEM;
1655         }
1656         reply->callback = reply_cb;
1657         reply->param = reply_param;
1658         if (card->state == CARD_STATE_DOWN)
1659                 reply->seqno = QETH_IDX_COMMAND_SEQNO;
1660         else
1661                 reply->seqno = card->seqno.ipa++;
1662         init_waitqueue_head(&reply->wait_q);
1663         spin_lock_irqsave(&card->lock, flags);
1664         list_add_tail(&reply->list, &card->cmd_waiter_list);
1665         spin_unlock_irqrestore(&card->lock, flags);
1666         QETH_DBF_HEX(CTRL, 2, iob->data, QETH_DBF_CTRL_LEN);
1667
1668         while (atomic_cmpxchg(&card->write.irq_pending, 0, 1)) ;
1669         qeth_prepare_control_data(card, len, iob);
1670
1671         if (IS_IPA(iob->data))
1672                 timeout = jiffies + QETH_IPA_TIMEOUT;
1673         else
1674                 timeout = jiffies + QETH_TIMEOUT;
1675
1676         QETH_DBF_TEXT(TRACE, 6, "noirqpnd");
1677         spin_lock_irqsave(get_ccwdev_lock(card->write.ccwdev), flags);
1678         rc = ccw_device_start(card->write.ccwdev, &card->write.ccw,
1679                               (addr_t) iob, 0, 0);
1680         spin_unlock_irqrestore(get_ccwdev_lock(card->write.ccwdev), flags);
1681         if (rc) {
1682                 PRINT_WARN("qeth_send_control_data: "
1683                            "ccw_device_start rc = %i\n", rc);
1684                 QETH_DBF_TEXT_(TRACE, 2, " err%d", rc);
1685                 spin_lock_irqsave(&card->lock, flags);
1686                 list_del_init(&reply->list);
1687                 qeth_put_reply(reply);
1688                 spin_unlock_irqrestore(&card->lock, flags);
1689                 qeth_release_buffer(iob->channel, iob);
1690                 atomic_set(&card->write.irq_pending, 0);
1691                 wake_up(&card->wait_q);
1692                 return rc;
1693         }
1694         while (!atomic_read(&reply->received)) {
1695                 if (time_after(jiffies, timeout)) {
1696                         spin_lock_irqsave(&reply->card->lock, flags);
1697                         list_del_init(&reply->list);
1698                         spin_unlock_irqrestore(&reply->card->lock, flags);
1699                         reply->rc = -ETIME;
1700                         atomic_inc(&reply->received);
1701                         wake_up(&reply->wait_q);
1702                 }
1703                 cpu_relax();
1704         };
1705         rc = reply->rc;
1706         qeth_put_reply(reply);
1707         return rc;
1708 }
1709 EXPORT_SYMBOL_GPL(qeth_send_control_data);
1710
1711 static int qeth_cm_enable_cb(struct qeth_card *card, struct qeth_reply *reply,
1712                 unsigned long data)
1713 {
1714         struct qeth_cmd_buffer *iob;
1715
1716         QETH_DBF_TEXT(SETUP, 2, "cmenblcb");
1717
1718         iob = (struct qeth_cmd_buffer *) data;
1719         memcpy(&card->token.cm_filter_r,
1720                QETH_CM_ENABLE_RESP_FILTER_TOKEN(iob->data),
1721                QETH_MPC_TOKEN_LENGTH);
1722         QETH_DBF_TEXT_(SETUP, 2, "  rc%d", iob->rc);
1723         return 0;
1724 }
1725
1726 static int qeth_cm_enable(struct qeth_card *card)
1727 {
1728         int rc;
1729         struct qeth_cmd_buffer *iob;
1730
1731         QETH_DBF_TEXT(SETUP, 2, "cmenable");
1732
1733         iob = qeth_wait_for_buffer(&card->write);
1734         memcpy(iob->data, CM_ENABLE, CM_ENABLE_SIZE);
1735         memcpy(QETH_CM_ENABLE_ISSUER_RM_TOKEN(iob->data),
1736                &card->token.issuer_rm_r, QETH_MPC_TOKEN_LENGTH);
1737         memcpy(QETH_CM_ENABLE_FILTER_TOKEN(iob->data),
1738                &card->token.cm_filter_w, QETH_MPC_TOKEN_LENGTH);
1739
1740         rc = qeth_send_control_data(card, CM_ENABLE_SIZE, iob,
1741                                     qeth_cm_enable_cb, NULL);
1742         return rc;
1743 }
1744
1745 static int qeth_cm_setup_cb(struct qeth_card *card, struct qeth_reply *reply,
1746                 unsigned long data)
1747 {
1748
1749         struct qeth_cmd_buffer *iob;
1750
1751         QETH_DBF_TEXT(SETUP, 2, "cmsetpcb");
1752
1753         iob = (struct qeth_cmd_buffer *) data;
1754         memcpy(&card->token.cm_connection_r,
1755                QETH_CM_SETUP_RESP_DEST_ADDR(iob->data),
1756                QETH_MPC_TOKEN_LENGTH);
1757         QETH_DBF_TEXT_(SETUP, 2, "  rc%d", iob->rc);
1758         return 0;
1759 }
1760
1761 static int qeth_cm_setup(struct qeth_card *card)
1762 {
1763         int rc;
1764         struct qeth_cmd_buffer *iob;
1765
1766         QETH_DBF_TEXT(SETUP, 2, "cmsetup");
1767
1768         iob = qeth_wait_for_buffer(&card->write);
1769         memcpy(iob->data, CM_SETUP, CM_SETUP_SIZE);
1770         memcpy(QETH_CM_SETUP_DEST_ADDR(iob->data),
1771                &card->token.issuer_rm_r, QETH_MPC_TOKEN_LENGTH);
1772         memcpy(QETH_CM_SETUP_CONNECTION_TOKEN(iob->data),
1773                &card->token.cm_connection_w, QETH_MPC_TOKEN_LENGTH);
1774         memcpy(QETH_CM_SETUP_FILTER_TOKEN(iob->data),
1775                &card->token.cm_filter_r, QETH_MPC_TOKEN_LENGTH);
1776         rc = qeth_send_control_data(card, CM_SETUP_SIZE, iob,
1777                                     qeth_cm_setup_cb, NULL);
1778         return rc;
1779
1780 }
1781
1782 static inline int qeth_get_initial_mtu_for_card(struct qeth_card *card)
1783 {
1784         switch (card->info.type) {
1785         case QETH_CARD_TYPE_UNKNOWN:
1786                 return 1500;
1787         case QETH_CARD_TYPE_IQD:
1788                 return card->info.max_mtu;
1789         case QETH_CARD_TYPE_OSAE:
1790                 switch (card->info.link_type) {
1791                 case QETH_LINK_TYPE_HSTR:
1792                 case QETH_LINK_TYPE_LANE_TR:
1793                         return 2000;
1794                 default:
1795                         return 1492;
1796                 }
1797         default:
1798                 return 1500;
1799         }
1800 }
1801
1802 static inline int qeth_get_max_mtu_for_card(int cardtype)
1803 {
1804         switch (cardtype) {
1805
1806         case QETH_CARD_TYPE_UNKNOWN:
1807         case QETH_CARD_TYPE_OSAE:
1808         case QETH_CARD_TYPE_OSN:
1809                 return 61440;
1810         case QETH_CARD_TYPE_IQD:
1811                 return 57344;
1812         default:
1813                 return 1500;
1814         }
1815 }
1816
1817 static inline int qeth_get_mtu_out_of_mpc(int cardtype)
1818 {
1819         switch (cardtype) {
1820         case QETH_CARD_TYPE_IQD:
1821                 return 1;
1822         default:
1823                 return 0;
1824         }
1825 }
1826
1827 static inline int qeth_get_mtu_outof_framesize(int framesize)
1828 {
1829         switch (framesize) {
1830         case 0x4000:
1831                 return 8192;
1832         case 0x6000:
1833                 return 16384;
1834         case 0xa000:
1835                 return 32768;
1836         case 0xffff:
1837                 return 57344;
1838         default:
1839                 return 0;
1840         }
1841 }
1842
1843 static inline int qeth_mtu_is_valid(struct qeth_card *card, int mtu)
1844 {
1845         switch (card->info.type) {
1846         case QETH_CARD_TYPE_OSAE:
1847                 return ((mtu >= 576) && (mtu <= 61440));
1848         case QETH_CARD_TYPE_IQD:
1849                 return ((mtu >= 576) &&
1850                         (mtu <= card->info.max_mtu + 4096 - 32));
1851         case QETH_CARD_TYPE_OSN:
1852         case QETH_CARD_TYPE_UNKNOWN:
1853         default:
1854                 return 1;
1855         }
1856 }
1857
1858 static int qeth_ulp_enable_cb(struct qeth_card *card, struct qeth_reply *reply,
1859                 unsigned long data)
1860 {
1861
1862         __u16 mtu, framesize;
1863         __u16 len;
1864         __u8 link_type;
1865         struct qeth_cmd_buffer *iob;
1866
1867         QETH_DBF_TEXT(SETUP, 2, "ulpenacb");
1868
1869         iob = (struct qeth_cmd_buffer *) data;
1870         memcpy(&card->token.ulp_filter_r,
1871                QETH_ULP_ENABLE_RESP_FILTER_TOKEN(iob->data),
1872                QETH_MPC_TOKEN_LENGTH);
1873         if (qeth_get_mtu_out_of_mpc(card->info.type)) {
1874                 memcpy(&framesize, QETH_ULP_ENABLE_RESP_MAX_MTU(iob->data), 2);
1875                 mtu = qeth_get_mtu_outof_framesize(framesize);
1876                 if (!mtu) {
1877                         iob->rc = -EINVAL;
1878                         QETH_DBF_TEXT_(SETUP, 2, "  rc%d", iob->rc);
1879                         return 0;
1880                 }
1881                 card->info.max_mtu = mtu;
1882                 card->info.initial_mtu = mtu;
1883                 card->qdio.in_buf_size = mtu + 2 * PAGE_SIZE;
1884         } else {
1885                 card->info.initial_mtu = qeth_get_initial_mtu_for_card(card);
1886                 card->info.max_mtu = qeth_get_max_mtu_for_card(card->info.type);
1887                 card->qdio.in_buf_size = QETH_IN_BUF_SIZE_DEFAULT;
1888         }
1889
1890         memcpy(&len, QETH_ULP_ENABLE_RESP_DIFINFO_LEN(iob->data), 2);
1891         if (len >= QETH_MPC_DIFINFO_LEN_INDICATES_LINK_TYPE) {
1892                 memcpy(&link_type,
1893                        QETH_ULP_ENABLE_RESP_LINK_TYPE(iob->data), 1);
1894                 card->info.link_type = link_type;
1895         } else
1896                 card->info.link_type = 0;
1897         QETH_DBF_TEXT_(SETUP, 2, "  rc%d", iob->rc);
1898         return 0;
1899 }
1900
1901 static int qeth_ulp_enable(struct qeth_card *card)
1902 {
1903         int rc;
1904         char prot_type;
1905         struct qeth_cmd_buffer *iob;
1906
1907         /*FIXME: trace view callbacks*/
1908         QETH_DBF_TEXT(SETUP, 2, "ulpenabl");
1909
1910         iob = qeth_wait_for_buffer(&card->write);
1911         memcpy(iob->data, ULP_ENABLE, ULP_ENABLE_SIZE);
1912
1913         *(QETH_ULP_ENABLE_LINKNUM(iob->data)) =
1914                 (__u8) card->info.portno;
1915         if (card->options.layer2)
1916                 if (card->info.type == QETH_CARD_TYPE_OSN)
1917                         prot_type = QETH_PROT_OSN2;
1918                 else
1919                         prot_type = QETH_PROT_LAYER2;
1920         else
1921                 prot_type = QETH_PROT_TCPIP;
1922
1923         memcpy(QETH_ULP_ENABLE_PROT_TYPE(iob->data), &prot_type, 1);
1924         memcpy(QETH_ULP_ENABLE_DEST_ADDR(iob->data),
1925                &card->token.cm_connection_r, QETH_MPC_TOKEN_LENGTH);
1926         memcpy(QETH_ULP_ENABLE_FILTER_TOKEN(iob->data),
1927                &card->token.ulp_filter_w, QETH_MPC_TOKEN_LENGTH);
1928         memcpy(QETH_ULP_ENABLE_PORTNAME_AND_LL(iob->data),
1929                card->info.portname, 9);
1930         rc = qeth_send_control_data(card, ULP_ENABLE_SIZE, iob,
1931                                     qeth_ulp_enable_cb, NULL);
1932         return rc;
1933
1934 }
1935
1936 static int qeth_ulp_setup_cb(struct qeth_card *card, struct qeth_reply *reply,
1937                 unsigned long data)
1938 {
1939         struct qeth_cmd_buffer *iob;
1940
1941         QETH_DBF_TEXT(SETUP, 2, "ulpstpcb");
1942
1943         iob = (struct qeth_cmd_buffer *) data;
1944         memcpy(&card->token.ulp_connection_r,
1945                QETH_ULP_SETUP_RESP_CONNECTION_TOKEN(iob->data),
1946                QETH_MPC_TOKEN_LENGTH);
1947         QETH_DBF_TEXT_(SETUP, 2, "  rc%d", iob->rc);
1948         return 0;
1949 }
1950
1951 static int qeth_ulp_setup(struct qeth_card *card)
1952 {
1953         int rc;
1954         __u16 temp;
1955         struct qeth_cmd_buffer *iob;
1956         struct ccw_dev_id dev_id;
1957
1958         QETH_DBF_TEXT(SETUP, 2, "ulpsetup");
1959
1960         iob = qeth_wait_for_buffer(&card->write);
1961         memcpy(iob->data, ULP_SETUP, ULP_SETUP_SIZE);
1962
1963         memcpy(QETH_ULP_SETUP_DEST_ADDR(iob->data),
1964                &card->token.cm_connection_r, QETH_MPC_TOKEN_LENGTH);
1965         memcpy(QETH_ULP_SETUP_CONNECTION_TOKEN(iob->data),
1966                &card->token.ulp_connection_w, QETH_MPC_TOKEN_LENGTH);
1967         memcpy(QETH_ULP_SETUP_FILTER_TOKEN(iob->data),
1968                &card->token.ulp_filter_r, QETH_MPC_TOKEN_LENGTH);
1969
1970         ccw_device_get_id(CARD_DDEV(card), &dev_id);
1971         memcpy(QETH_ULP_SETUP_CUA(iob->data), &dev_id.devno, 2);
1972         temp = (card->info.cula << 8) + card->info.unit_addr2;
1973         memcpy(QETH_ULP_SETUP_REAL_DEVADDR(iob->data), &temp, 2);
1974         rc = qeth_send_control_data(card, ULP_SETUP_SIZE, iob,
1975                                     qeth_ulp_setup_cb, NULL);
1976         return rc;
1977 }
1978
1979 static int qeth_alloc_qdio_buffers(struct qeth_card *card)
1980 {
1981         int i, j;
1982
1983         QETH_DBF_TEXT(SETUP, 2, "allcqdbf");
1984
1985         if (atomic_cmpxchg(&card->qdio.state, QETH_QDIO_UNINITIALIZED,
1986                 QETH_QDIO_ALLOCATED) != QETH_QDIO_UNINITIALIZED)
1987                 return 0;
1988
1989         card->qdio.in_q = kmalloc(sizeof(struct qeth_qdio_q),
1990                                   GFP_KERNEL);
1991         if (!card->qdio.in_q)
1992                 goto out_nomem;
1993         QETH_DBF_TEXT(SETUP, 2, "inq");
1994         QETH_DBF_HEX(SETUP, 2, &card->qdio.in_q, sizeof(void *));
1995         memset(card->qdio.in_q, 0, sizeof(struct qeth_qdio_q));
1996         /* give inbound qeth_qdio_buffers their qdio_buffers */
1997         for (i = 0; i < QDIO_MAX_BUFFERS_PER_Q; ++i)
1998                 card->qdio.in_q->bufs[i].buffer =
1999                         &card->qdio.in_q->qdio_bufs[i];
2000         /* inbound buffer pool */
2001         if (qeth_alloc_buffer_pool(card))
2002                 goto out_freeinq;
2003         /* outbound */
2004         card->qdio.out_qs =
2005                 kmalloc(card->qdio.no_out_queues *
2006                         sizeof(struct qeth_qdio_out_q *), GFP_KERNEL);
2007         if (!card->qdio.out_qs)
2008                 goto out_freepool;
2009         for (i = 0; i < card->qdio.no_out_queues; ++i) {
2010                 card->qdio.out_qs[i] = kmalloc(sizeof(struct qeth_qdio_out_q),
2011                                                GFP_KERNEL);
2012                 if (!card->qdio.out_qs[i])
2013                         goto out_freeoutq;
2014                 QETH_DBF_TEXT_(SETUP, 2, "outq %i", i);
2015                 QETH_DBF_HEX(SETUP, 2, &card->qdio.out_qs[i], sizeof(void *));
2016                 memset(card->qdio.out_qs[i], 0, sizeof(struct qeth_qdio_out_q));
2017                 card->qdio.out_qs[i]->queue_no = i;
2018                 /* give outbound qeth_qdio_buffers their qdio_buffers */
2019                 for (j = 0; j < QDIO_MAX_BUFFERS_PER_Q; ++j) {
2020                         card->qdio.out_qs[i]->bufs[j].buffer =
2021                                 &card->qdio.out_qs[i]->qdio_bufs[j];
2022                         skb_queue_head_init(&card->qdio.out_qs[i]->bufs[j].
2023                                             skb_list);
2024                         lockdep_set_class(
2025                                 &card->qdio.out_qs[i]->bufs[j].skb_list.lock,
2026                                 &qdio_out_skb_queue_key);
2027                         INIT_LIST_HEAD(&card->qdio.out_qs[i]->bufs[j].ctx_list);
2028                 }
2029         }
2030         return 0;
2031
2032 out_freeoutq:
2033         while (i > 0)
2034                 kfree(card->qdio.out_qs[--i]);
2035         kfree(card->qdio.out_qs);
2036         card->qdio.out_qs = NULL;
2037 out_freepool:
2038         qeth_free_buffer_pool(card);
2039 out_freeinq:
2040         kfree(card->qdio.in_q);
2041         card->qdio.in_q = NULL;
2042 out_nomem:
2043         atomic_set(&card->qdio.state, QETH_QDIO_UNINITIALIZED);
2044         return -ENOMEM;
2045 }
2046
2047 static void qeth_create_qib_param_field(struct qeth_card *card,
2048                 char *param_field)
2049 {
2050
2051         param_field[0] = _ascebc['P'];
2052         param_field[1] = _ascebc['C'];
2053         param_field[2] = _ascebc['I'];
2054         param_field[3] = _ascebc['T'];
2055         *((unsigned int *) (&param_field[4])) = QETH_PCI_THRESHOLD_A(card);
2056         *((unsigned int *) (&param_field[8])) = QETH_PCI_THRESHOLD_B(card);
2057         *((unsigned int *) (&param_field[12])) = QETH_PCI_TIMER_VALUE(card);
2058 }
2059
2060 static void qeth_create_qib_param_field_blkt(struct qeth_card *card,
2061                 char *param_field)
2062 {
2063         param_field[16] = _ascebc['B'];
2064         param_field[17] = _ascebc['L'];
2065         param_field[18] = _ascebc['K'];
2066         param_field[19] = _ascebc['T'];
2067         *((unsigned int *) (&param_field[20])) = card->info.blkt.time_total;
2068         *((unsigned int *) (&param_field[24])) = card->info.blkt.inter_packet;
2069         *((unsigned int *) (&param_field[28])) =
2070                 card->info.blkt.inter_packet_jumbo;
2071 }
2072
2073 static int qeth_qdio_activate(struct qeth_card *card)
2074 {
2075         QETH_DBF_TEXT(SETUP, 3, "qdioact");
2076         return qdio_activate(CARD_DDEV(card));
2077 }
2078
2079 static int qeth_dm_act(struct qeth_card *card)
2080 {
2081         int rc;
2082         struct qeth_cmd_buffer *iob;
2083
2084         QETH_DBF_TEXT(SETUP, 2, "dmact");
2085
2086         iob = qeth_wait_for_buffer(&card->write);
2087         memcpy(iob->data, DM_ACT, DM_ACT_SIZE);
2088
2089         memcpy(QETH_DM_ACT_DEST_ADDR(iob->data),
2090                &card->token.cm_connection_r, QETH_MPC_TOKEN_LENGTH);
2091         memcpy(QETH_DM_ACT_CONNECTION_TOKEN(iob->data),
2092                &card->token.ulp_connection_r, QETH_MPC_TOKEN_LENGTH);
2093         rc = qeth_send_control_data(card, DM_ACT_SIZE, iob, NULL, NULL);
2094         return rc;
2095 }
2096
2097 static int qeth_mpc_initialize(struct qeth_card *card)
2098 {
2099         int rc;
2100
2101         QETH_DBF_TEXT(SETUP, 2, "mpcinit");
2102
2103         rc = qeth_issue_next_read(card);
2104         if (rc) {
2105                 QETH_DBF_TEXT_(SETUP, 2, "1err%d", rc);
2106                 return rc;
2107         }
2108         rc = qeth_cm_enable(card);
2109         if (rc) {
2110                 QETH_DBF_TEXT_(SETUP, 2, "2err%d", rc);
2111                 goto out_qdio;
2112         }
2113         rc = qeth_cm_setup(card);
2114         if (rc) {
2115                 QETH_DBF_TEXT_(SETUP, 2, "3err%d", rc);
2116                 goto out_qdio;
2117         }
2118         rc = qeth_ulp_enable(card);
2119         if (rc) {
2120                 QETH_DBF_TEXT_(SETUP, 2, "4err%d", rc);
2121                 goto out_qdio;
2122         }
2123         rc = qeth_ulp_setup(card);
2124         if (rc) {
2125                 QETH_DBF_TEXT_(SETUP, 2, "5err%d", rc);
2126                 goto out_qdio;
2127         }
2128         rc = qeth_alloc_qdio_buffers(card);
2129         if (rc) {
2130                 QETH_DBF_TEXT_(SETUP, 2, "5err%d", rc);
2131                 goto out_qdio;
2132         }
2133         rc = qeth_qdio_establish(card);
2134         if (rc) {
2135                 QETH_DBF_TEXT_(SETUP, 2, "6err%d", rc);
2136                 qeth_free_qdio_buffers(card);
2137                 goto out_qdio;
2138         }
2139         rc = qeth_qdio_activate(card);
2140         if (rc) {
2141                 QETH_DBF_TEXT_(SETUP, 2, "7err%d", rc);
2142                 goto out_qdio;
2143         }
2144         rc = qeth_dm_act(card);
2145         if (rc) {
2146                 QETH_DBF_TEXT_(SETUP, 2, "8err%d", rc);
2147                 goto out_qdio;
2148         }
2149
2150         return 0;
2151 out_qdio:
2152         qeth_qdio_clear_card(card, card->info.type != QETH_CARD_TYPE_IQD);
2153         return rc;
2154 }
2155
2156 static void qeth_print_status_with_portname(struct qeth_card *card)
2157 {
2158         char dbf_text[15];
2159         int i;
2160
2161         sprintf(dbf_text, "%s", card->info.portname + 1);
2162         for (i = 0; i < 8; i++)
2163                 dbf_text[i] =
2164                         (char) _ebcasc[(__u8) dbf_text[i]];
2165         dbf_text[8] = 0;
2166         PRINT_INFO("Device %s/%s/%s is a%s card%s%s%s\n"
2167                "with link type %s (portname: %s)\n",
2168                CARD_RDEV_ID(card),
2169                CARD_WDEV_ID(card),
2170                CARD_DDEV_ID(card),
2171                qeth_get_cardname(card),
2172                (card->info.mcl_level[0]) ? " (level: " : "",
2173                (card->info.mcl_level[0]) ? card->info.mcl_level : "",
2174                (card->info.mcl_level[0]) ? ")" : "",
2175                qeth_get_cardname_short(card),
2176                dbf_text);
2177
2178 }
2179
2180 static void qeth_print_status_no_portname(struct qeth_card *card)
2181 {
2182         if (card->info.portname[0])
2183                 PRINT_INFO("Device %s/%s/%s is a%s "
2184                        "card%s%s%s\nwith link type %s "
2185                        "(no portname needed by interface).\n",
2186                        CARD_RDEV_ID(card),
2187                        CARD_WDEV_ID(card),
2188                        CARD_DDEV_ID(card),
2189                        qeth_get_cardname(card),
2190                        (card->info.mcl_level[0]) ? " (level: " : "",
2191                        (card->info.mcl_level[0]) ? card->info.mcl_level : "",
2192                        (card->info.mcl_level[0]) ? ")" : "",
2193                        qeth_get_cardname_short(card));
2194         else
2195                 PRINT_INFO("Device %s/%s/%s is a%s "
2196                        "card%s%s%s\nwith link type %s.\n",
2197                        CARD_RDEV_ID(card),
2198                        CARD_WDEV_ID(card),
2199                        CARD_DDEV_ID(card),
2200                        qeth_get_cardname(card),
2201                        (card->info.mcl_level[0]) ? " (level: " : "",
2202                        (card->info.mcl_level[0]) ? card->info.mcl_level : "",
2203                        (card->info.mcl_level[0]) ? ")" : "",
2204                        qeth_get_cardname_short(card));
2205 }
2206
2207 void qeth_print_status_message(struct qeth_card *card)
2208 {
2209         switch (card->info.type) {
2210         case QETH_CARD_TYPE_OSAE:
2211                 /* VM will use a non-zero first character
2212                  * to indicate a HiperSockets like reporting
2213                  * of the level OSA sets the first character to zero
2214                  * */
2215                 if (!card->info.mcl_level[0]) {
2216                         sprintf(card->info.mcl_level, "%02x%02x",
2217                                 card->info.mcl_level[2],
2218                                 card->info.mcl_level[3]);
2219
2220                         card->info.mcl_level[QETH_MCL_LENGTH] = 0;
2221                         break;
2222                 }
2223                 /* fallthrough */
2224         case QETH_CARD_TYPE_IQD:
2225                 if (card->info.guestlan) {
2226                         card->info.mcl_level[0] = (char) _ebcasc[(__u8)
2227                                 card->info.mcl_level[0]];
2228                         card->info.mcl_level[1] = (char) _ebcasc[(__u8)
2229                                 card->info.mcl_level[1]];
2230                         card->info.mcl_level[2] = (char) _ebcasc[(__u8)
2231                                 card->info.mcl_level[2]];
2232                         card->info.mcl_level[3] = (char) _ebcasc[(__u8)
2233                                 card->info.mcl_level[3]];
2234                         card->info.mcl_level[QETH_MCL_LENGTH] = 0;
2235                 }
2236                 break;
2237         default:
2238                 memset(&card->info.mcl_level[0], 0, QETH_MCL_LENGTH + 1);
2239         }
2240         if (card->info.portname_required)
2241                 qeth_print_status_with_portname(card);
2242         else
2243                 qeth_print_status_no_portname(card);
2244 }
2245 EXPORT_SYMBOL_GPL(qeth_print_status_message);
2246
2247 static void qeth_initialize_working_pool_list(struct qeth_card *card)
2248 {
2249         struct qeth_buffer_pool_entry *entry;
2250
2251         QETH_DBF_TEXT(TRACE, 5, "inwrklst");
2252
2253         list_for_each_entry(entry,
2254                             &card->qdio.init_pool.entry_list, init_list) {
2255                 qeth_put_buffer_pool_entry(card, entry);
2256         }
2257 }
2258
2259 static inline struct qeth_buffer_pool_entry *qeth_find_free_buffer_pool_entry(
2260                 struct qeth_card *card)
2261 {
2262         struct list_head *plh;
2263         struct qeth_buffer_pool_entry *entry;
2264         int i, free;
2265         struct page *page;
2266
2267         if (list_empty(&card->qdio.in_buf_pool.entry_list))
2268                 return NULL;
2269
2270         list_for_each(plh, &card->qdio.in_buf_pool.entry_list) {
2271                 entry = list_entry(plh, struct qeth_buffer_pool_entry, list);
2272                 free = 1;
2273                 for (i = 0; i < QETH_MAX_BUFFER_ELEMENTS(card); ++i) {
2274                         if (page_count(virt_to_page(entry->elements[i])) > 1) {
2275                                 free = 0;
2276                                 break;
2277                         }
2278                 }
2279                 if (free) {
2280                         list_del_init(&entry->list);
2281                         return entry;
2282                 }
2283         }
2284
2285         /* no free buffer in pool so take first one and swap pages */
2286         entry = list_entry(card->qdio.in_buf_pool.entry_list.next,
2287                         struct qeth_buffer_pool_entry, list);
2288         for (i = 0; i < QETH_MAX_BUFFER_ELEMENTS(card); ++i) {
2289                 if (page_count(virt_to_page(entry->elements[i])) > 1) {
2290                         page = alloc_page(GFP_ATOMIC);
2291                         if (!page) {
2292                                 return NULL;
2293                         } else {
2294                                 free_page((unsigned long)entry->elements[i]);
2295                                 entry->elements[i] = page_address(page);
2296                                 if (card->options.performance_stats)
2297                                         card->perf_stats.sg_alloc_page_rx++;
2298                         }
2299                 }
2300         }
2301         list_del_init(&entry->list);
2302         return entry;
2303 }
2304
2305 static int qeth_init_input_buffer(struct qeth_card *card,
2306                 struct qeth_qdio_buffer *buf)
2307 {
2308         struct qeth_buffer_pool_entry *pool_entry;
2309         int i;
2310
2311         pool_entry = qeth_find_free_buffer_pool_entry(card);
2312         if (!pool_entry)
2313                 return 1;
2314
2315         /*
2316          * since the buffer is accessed only from the input_tasklet
2317          * there shouldn't be a need to synchronize; also, since we use
2318          * the QETH_IN_BUF_REQUEUE_THRESHOLD we should never run  out off
2319          * buffers
2320          */
2321         BUG_ON(!pool_entry);
2322
2323         buf->pool_entry = pool_entry;
2324         for (i = 0; i < QETH_MAX_BUFFER_ELEMENTS(card); ++i) {
2325                 buf->buffer->element[i].length = PAGE_SIZE;
2326                 buf->buffer->element[i].addr =  pool_entry->elements[i];
2327                 if (i == QETH_MAX_BUFFER_ELEMENTS(card) - 1)
2328                         buf->buffer->element[i].flags = SBAL_FLAGS_LAST_ENTRY;
2329                 else
2330                         buf->buffer->element[i].flags = 0;
2331         }
2332         return 0;
2333 }
2334
2335 int qeth_init_qdio_queues(struct qeth_card *card)
2336 {
2337         int i, j;
2338         int rc;
2339
2340         QETH_DBF_TEXT(SETUP, 2, "initqdqs");
2341
2342         /* inbound queue */
2343         memset(card->qdio.in_q->qdio_bufs, 0,
2344                QDIO_MAX_BUFFERS_PER_Q * sizeof(struct qdio_buffer));
2345         qeth_initialize_working_pool_list(card);
2346         /*give only as many buffers to hardware as we have buffer pool entries*/
2347         for (i = 0; i < card->qdio.in_buf_pool.buf_count - 1; ++i)
2348                 qeth_init_input_buffer(card, &card->qdio.in_q->bufs[i]);
2349         card->qdio.in_q->next_buf_to_init =
2350                 card->qdio.in_buf_pool.buf_count - 1;
2351         rc = do_QDIO(CARD_DDEV(card), QDIO_FLAG_SYNC_INPUT, 0, 0,
2352                      card->qdio.in_buf_pool.buf_count - 1);
2353         if (rc) {
2354                 QETH_DBF_TEXT_(SETUP, 2, "1err%d", rc);
2355                 return rc;
2356         }
2357         /* outbound queue */
2358         for (i = 0; i < card->qdio.no_out_queues; ++i) {
2359                 memset(card->qdio.out_qs[i]->qdio_bufs, 0,
2360                        QDIO_MAX_BUFFERS_PER_Q * sizeof(struct qdio_buffer));
2361                 for (j = 0; j < QDIO_MAX_BUFFERS_PER_Q; ++j) {
2362                         qeth_clear_output_buffer(card->qdio.out_qs[i],
2363                                         &card->qdio.out_qs[i]->bufs[j]);
2364                 }
2365                 card->qdio.out_qs[i]->card = card;
2366                 card->qdio.out_qs[i]->next_buf_to_fill = 0;
2367                 card->qdio.out_qs[i]->do_pack = 0;
2368                 atomic_set(&card->qdio.out_qs[i]->used_buffers, 0);
2369                 atomic_set(&card->qdio.out_qs[i]->set_pci_flags_count, 0);
2370                 atomic_set(&card->qdio.out_qs[i]->state,
2371                            QETH_OUT_Q_UNLOCKED);
2372         }
2373         return 0;
2374 }
2375 EXPORT_SYMBOL_GPL(qeth_init_qdio_queues);
2376
2377 static inline __u8 qeth_get_ipa_adp_type(enum qeth_link_types link_type)
2378 {
2379         switch (link_type) {
2380         case QETH_LINK_TYPE_HSTR:
2381                 return 2;
2382         default:
2383                 return 1;
2384         }
2385 }
2386
2387 static void qeth_fill_ipacmd_header(struct qeth_card *card,
2388                 struct qeth_ipa_cmd *cmd, __u8 command,
2389                 enum qeth_prot_versions prot)
2390 {
2391         memset(cmd, 0, sizeof(struct qeth_ipa_cmd));
2392         cmd->hdr.command = command;
2393         cmd->hdr.initiator = IPA_CMD_INITIATOR_HOST;
2394         cmd->hdr.seqno = card->seqno.ipa;
2395         cmd->hdr.adapter_type = qeth_get_ipa_adp_type(card->info.link_type);
2396         cmd->hdr.rel_adapter_no = (__u8) card->info.portno;
2397         if (card->options.layer2)
2398                 cmd->hdr.prim_version_no = 2;
2399         else
2400                 cmd->hdr.prim_version_no = 1;
2401         cmd->hdr.param_count = 1;
2402         cmd->hdr.prot_version = prot;
2403         cmd->hdr.ipa_supported = 0;
2404         cmd->hdr.ipa_enabled = 0;
2405 }
2406
2407 struct qeth_cmd_buffer *qeth_get_ipacmd_buffer(struct qeth_card *card,
2408                 enum qeth_ipa_cmds ipacmd, enum qeth_prot_versions prot)
2409 {
2410         struct qeth_cmd_buffer *iob;
2411         struct qeth_ipa_cmd *cmd;
2412
2413         iob = qeth_wait_for_buffer(&card->write);
2414         cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
2415         qeth_fill_ipacmd_header(card, cmd, ipacmd, prot);
2416
2417         return iob;
2418 }
2419 EXPORT_SYMBOL_GPL(qeth_get_ipacmd_buffer);
2420
2421 void qeth_prepare_ipa_cmd(struct qeth_card *card, struct qeth_cmd_buffer *iob,
2422                 char prot_type)
2423 {
2424         memcpy(iob->data, IPA_PDU_HEADER, IPA_PDU_HEADER_SIZE);
2425         memcpy(QETH_IPA_CMD_PROT_TYPE(iob->data), &prot_type, 1);
2426         memcpy(QETH_IPA_CMD_DEST_ADDR(iob->data),
2427                &card->token.ulp_connection_r, QETH_MPC_TOKEN_LENGTH);
2428 }
2429 EXPORT_SYMBOL_GPL(qeth_prepare_ipa_cmd);
2430
2431 int qeth_send_ipa_cmd(struct qeth_card *card, struct qeth_cmd_buffer *iob,
2432                 int (*reply_cb)(struct qeth_card *, struct qeth_reply*,
2433                         unsigned long),
2434                 void *reply_param)
2435 {
2436         int rc;
2437         char prot_type;
2438
2439         QETH_DBF_TEXT(TRACE, 4, "sendipa");
2440
2441         if (card->options.layer2)
2442                 if (card->info.type == QETH_CARD_TYPE_OSN)
2443                         prot_type = QETH_PROT_OSN2;
2444                 else
2445                         prot_type = QETH_PROT_LAYER2;
2446         else
2447                 prot_type = QETH_PROT_TCPIP;
2448         qeth_prepare_ipa_cmd(card, iob, prot_type);
2449         rc = qeth_send_control_data(card, IPA_CMD_LENGTH,
2450                                                 iob, reply_cb, reply_param);
2451         return rc;
2452 }
2453 EXPORT_SYMBOL_GPL(qeth_send_ipa_cmd);
2454
2455 static int qeth_send_startstoplan(struct qeth_card *card,
2456                 enum qeth_ipa_cmds ipacmd, enum qeth_prot_versions prot)
2457 {
2458         int rc;
2459         struct qeth_cmd_buffer *iob;
2460
2461         iob = qeth_get_ipacmd_buffer(card, ipacmd, prot);
2462         rc = qeth_send_ipa_cmd(card, iob, NULL, NULL);
2463
2464         return rc;
2465 }
2466
2467 int qeth_send_startlan(struct qeth_card *card)
2468 {
2469         int rc;
2470
2471         QETH_DBF_TEXT(SETUP, 2, "strtlan");
2472
2473         rc = qeth_send_startstoplan(card, IPA_CMD_STARTLAN, 0);
2474         return rc;
2475 }
2476 EXPORT_SYMBOL_GPL(qeth_send_startlan);
2477
2478 int qeth_send_stoplan(struct qeth_card *card)
2479 {
2480         int rc = 0;
2481
2482         /*
2483          * TODO: according to the IPA format document page 14,
2484          * TCP/IP (we!) never issue a STOPLAN
2485          * is this right ?!?
2486          */
2487         QETH_DBF_TEXT(SETUP, 2, "stoplan");
2488
2489         rc = qeth_send_startstoplan(card, IPA_CMD_STOPLAN, 0);
2490         return rc;
2491 }
2492 EXPORT_SYMBOL_GPL(qeth_send_stoplan);
2493
2494 int qeth_default_setadapterparms_cb(struct qeth_card *card,
2495                 struct qeth_reply *reply, unsigned long data)
2496 {
2497         struct qeth_ipa_cmd *cmd;
2498
2499         QETH_DBF_TEXT(TRACE, 4, "defadpcb");
2500
2501         cmd = (struct qeth_ipa_cmd *) data;
2502         if (cmd->hdr.return_code == 0)
2503                 cmd->hdr.return_code =
2504                         cmd->data.setadapterparms.hdr.return_code;
2505         return 0;
2506 }
2507 EXPORT_SYMBOL_GPL(qeth_default_setadapterparms_cb);
2508
2509 static int qeth_query_setadapterparms_cb(struct qeth_card *card,
2510                 struct qeth_reply *reply, unsigned long data)
2511 {
2512         struct qeth_ipa_cmd *cmd;
2513
2514         QETH_DBF_TEXT(TRACE, 3, "quyadpcb");
2515
2516         cmd = (struct qeth_ipa_cmd *) data;
2517         if (cmd->data.setadapterparms.data.query_cmds_supp.lan_type & 0x7f)
2518                 card->info.link_type =
2519                       cmd->data.setadapterparms.data.query_cmds_supp.lan_type;
2520         card->options.adp.supported_funcs =
2521                 cmd->data.setadapterparms.data.query_cmds_supp.supported_cmds;
2522         return qeth_default_setadapterparms_cb(card, reply, (unsigned long)cmd);
2523 }
2524
2525 struct qeth_cmd_buffer *qeth_get_adapter_cmd(struct qeth_card *card,
2526                 __u32 command, __u32 cmdlen)
2527 {
2528         struct qeth_cmd_buffer *iob;
2529         struct qeth_ipa_cmd *cmd;
2530
2531         iob = qeth_get_ipacmd_buffer(card, IPA_CMD_SETADAPTERPARMS,
2532                                      QETH_PROT_IPV4);
2533         cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
2534         cmd->data.setadapterparms.hdr.cmdlength = cmdlen;
2535         cmd->data.setadapterparms.hdr.command_code = command;
2536         cmd->data.setadapterparms.hdr.used_total = 1;
2537         cmd->data.setadapterparms.hdr.seq_no = 1;
2538
2539         return iob;
2540 }
2541 EXPORT_SYMBOL_GPL(qeth_get_adapter_cmd);
2542
2543 int qeth_query_setadapterparms(struct qeth_card *card)
2544 {
2545         int rc;
2546         struct qeth_cmd_buffer *iob;
2547
2548         QETH_DBF_TEXT(TRACE, 3, "queryadp");
2549         iob = qeth_get_adapter_cmd(card, IPA_SETADP_QUERY_COMMANDS_SUPPORTED,
2550                                    sizeof(struct qeth_ipacmd_setadpparms));
2551         rc = qeth_send_ipa_cmd(card, iob, qeth_query_setadapterparms_cb, NULL);
2552         return rc;
2553 }
2554 EXPORT_SYMBOL_GPL(qeth_query_setadapterparms);
2555
2556 int qeth_check_qdio_errors(struct qdio_buffer *buf, unsigned int qdio_error,
2557                 const char *dbftext)
2558 {
2559         if (qdio_error) {
2560                 QETH_DBF_TEXT(TRACE, 2, dbftext);
2561                 QETH_DBF_TEXT(QERR, 2, dbftext);
2562                 QETH_DBF_TEXT_(QERR, 2, " F15=%02X",
2563                                buf->element[15].flags & 0xff);
2564                 QETH_DBF_TEXT_(QERR, 2, " F14=%02X",
2565                                buf->element[14].flags & 0xff);
2566                 QETH_DBF_TEXT_(QERR, 2, " qerr=%X", qdio_error);
2567                 return 1;
2568         }
2569         return 0;
2570 }
2571 EXPORT_SYMBOL_GPL(qeth_check_qdio_errors);
2572
2573 void qeth_queue_input_buffer(struct qeth_card *card, int index)
2574 {
2575         struct qeth_qdio_q *queue = card->qdio.in_q;
2576         int count;
2577         int i;
2578         int rc;
2579         int newcount = 0;
2580
2581         count = (index < queue->next_buf_to_init)?
2582                 card->qdio.in_buf_pool.buf_count -
2583                 (queue->next_buf_to_init - index) :
2584                 card->qdio.in_buf_pool.buf_count -
2585                 (queue->next_buf_to_init + QDIO_MAX_BUFFERS_PER_Q - index);
2586         /* only requeue at a certain threshold to avoid SIGAs */
2587         if (count >= QETH_IN_BUF_REQUEUE_THRESHOLD(card)) {
2588                 for (i = queue->next_buf_to_init;
2589                      i < queue->next_buf_to_init + count; ++i) {
2590                         if (qeth_init_input_buffer(card,
2591                                 &queue->bufs[i % QDIO_MAX_BUFFERS_PER_Q])) {
2592                                 break;
2593                         } else {
2594                                 newcount++;
2595                         }
2596                 }
2597
2598                 if (newcount < count) {
2599                         /* we are in memory shortage so we switch back to
2600                            traditional skb allocation and drop packages */
2601                         atomic_set(&card->force_alloc_skb, 3);
2602                         count = newcount;
2603                 } else {
2604                         atomic_add_unless(&card->force_alloc_skb, -1, 0);
2605                 }
2606
2607                 /*
2608                  * according to old code it should be avoided to requeue all
2609                  * 128 buffers in order to benefit from PCI avoidance.
2610                  * this function keeps at least one buffer (the buffer at
2611                  * 'index') un-requeued -> this buffer is the first buffer that
2612                  * will be requeued the next time
2613                  */
2614                 if (card->options.performance_stats) {
2615                         card->perf_stats.inbound_do_qdio_cnt++;
2616                         card->perf_stats.inbound_do_qdio_start_time =
2617                                 qeth_get_micros();
2618                 }
2619                 rc = do_QDIO(CARD_DDEV(card), QDIO_FLAG_SYNC_INPUT, 0,
2620                              queue->next_buf_to_init, count);
2621                 if (card->options.performance_stats)
2622                         card->perf_stats.inbound_do_qdio_time +=
2623                                 qeth_get_micros() -
2624                                 card->perf_stats.inbound_do_qdio_start_time;
2625                 if (rc) {
2626                         PRINT_WARN("qeth_queue_input_buffer's do_QDIO "
2627                                    "return %i (device %s).\n",
2628                                    rc, CARD_DDEV_ID(card));
2629                         QETH_DBF_TEXT(TRACE, 2, "qinberr");
2630                         QETH_DBF_TEXT_(TRACE, 2, "%s", CARD_BUS_ID(card));
2631                 }
2632                 queue->next_buf_to_init = (queue->next_buf_to_init + count) %
2633                                           QDIO_MAX_BUFFERS_PER_Q;
2634         }
2635 }
2636 EXPORT_SYMBOL_GPL(qeth_queue_input_buffer);
2637
2638 static int qeth_handle_send_error(struct qeth_card *card,
2639                 struct qeth_qdio_out_buffer *buffer, unsigned int qdio_err)
2640 {
2641         int sbalf15 = buffer->buffer->element[15].flags & 0xff;
2642         int cc = qdio_err & 3;
2643
2644         QETH_DBF_TEXT(TRACE, 6, "hdsnderr");
2645         qeth_check_qdio_errors(buffer->buffer, qdio_err, "qouterr");
2646         switch (cc) {
2647         case 0:
2648                 if (qdio_err) {
2649                         QETH_DBF_TEXT(TRACE, 1, "lnkfail");
2650                         QETH_DBF_TEXT_(TRACE, 1, "%s", CARD_BUS_ID(card));
2651                         QETH_DBF_TEXT_(TRACE, 1, "%04x %02x",
2652                                        (u16)qdio_err, (u8)sbalf15);
2653                         return QETH_SEND_ERROR_LINK_FAILURE;
2654                 }
2655                 return QETH_SEND_ERROR_NONE;
2656         case 2:
2657                 if (qdio_err & QDIO_ERROR_SIGA_BUSY) {
2658                         QETH_DBF_TEXT(TRACE, 1, "SIGAcc2B");
2659                         QETH_DBF_TEXT_(TRACE, 1, "%s", CARD_BUS_ID(card));
2660                         return QETH_SEND_ERROR_KICK_IT;
2661                 }
2662                 if ((sbalf15 >= 15) && (sbalf15 <= 31))
2663                         return QETH_SEND_ERROR_RETRY;
2664                 return QETH_SEND_ERROR_LINK_FAILURE;
2665                 /* look at qdio_error and sbalf 15 */
2666         case 1:
2667                 QETH_DBF_TEXT(TRACE, 1, "SIGAcc1");
2668                 QETH_DBF_TEXT_(TRACE, 1, "%s", CARD_BUS_ID(card));
2669                 return QETH_SEND_ERROR_LINK_FAILURE;
2670         case 3:
2671         default:
2672                 QETH_DBF_TEXT(TRACE, 1, "SIGAcc3");
2673                 QETH_DBF_TEXT_(TRACE, 1, "%s", CARD_BUS_ID(card));
2674                 return QETH_SEND_ERROR_KICK_IT;
2675         }
2676 }
2677
2678 /*
2679  * Switched to packing state if the number of used buffers on a queue
2680  * reaches a certain limit.
2681  */
2682 static void qeth_switch_to_packing_if_needed(struct qeth_qdio_out_q *queue)
2683 {
2684         if (!queue->do_pack) {
2685                 if (atomic_read(&queue->used_buffers)
2686                     >= QETH_HIGH_WATERMARK_PACK){
2687                         /* switch non-PACKING -> PACKING */
2688                         QETH_DBF_TEXT(TRACE, 6, "np->pack");
2689                         if (queue->card->options.performance_stats)
2690                                 queue->card->perf_stats.sc_dp_p++;
2691                         queue->do_pack = 1;
2692                 }
2693         }
2694 }
2695
2696 /*
2697  * Switches from packing to non-packing mode. If there is a packing
2698  * buffer on the queue this buffer will be prepared to be flushed.
2699  * In that case 1 is returned to inform the caller. If no buffer
2700  * has to be flushed, zero is returned.
2701  */
2702 static int qeth_switch_to_nonpacking_if_needed(struct qeth_qdio_out_q *queue)
2703 {
2704         struct qeth_qdio_out_buffer *buffer;
2705         int flush_count = 0;
2706
2707         if (queue->do_pack) {
2708                 if (atomic_read(&queue->used_buffers)
2709                     <= QETH_LOW_WATERMARK_PACK) {
2710                         /* switch PACKING -> non-PACKING */
2711                         QETH_DBF_TEXT(TRACE, 6, "pack->np");
2712                         if (queue->card->options.performance_stats)
2713                                 queue->card->perf_stats.sc_p_dp++;
2714                         queue->do_pack = 0;
2715                         /* flush packing buffers */
2716                         buffer = &queue->bufs[queue->next_buf_to_fill];
2717                         if ((atomic_read(&buffer->state) ==
2718                                                 QETH_QDIO_BUF_EMPTY) &&
2719                             (buffer->next_element_to_fill > 0)) {
2720                                 atomic_set(&buffer->state,
2721                                                 QETH_QDIO_BUF_PRIMED);
2722                                 flush_count++;
2723                                 queue->next_buf_to_fill =
2724                                         (queue->next_buf_to_fill + 1) %
2725                                         QDIO_MAX_BUFFERS_PER_Q;
2726                         }
2727                 }
2728         }
2729         return flush_count;
2730 }
2731
2732 /*
2733  * Called to flush a packing buffer if no more pci flags are on the queue.
2734  * Checks if there is a packing buffer and prepares it to be flushed.
2735  * In that case returns 1, otherwise zero.
2736  */
2737 static int qeth_flush_buffers_on_no_pci(struct qeth_qdio_out_q *queue)
2738 {
2739         struct qeth_qdio_out_buffer *buffer;
2740
2741         buffer = &queue->bufs[queue->next_buf_to_fill];
2742         if ((atomic_read(&buffer->state) == QETH_QDIO_BUF_EMPTY) &&
2743            (buffer->next_element_to_fill > 0)) {
2744                 /* it's a packing buffer */
2745                 atomic_set(&buffer->state, QETH_QDIO_BUF_PRIMED);
2746                 queue->next_buf_to_fill =
2747                         (queue->next_buf_to_fill + 1) % QDIO_MAX_BUFFERS_PER_Q;
2748                 return 1;
2749         }
2750         return 0;
2751 }
2752
2753 static void qeth_flush_buffers(struct qeth_qdio_out_q *queue, int index,
2754                                int count)
2755 {
2756         struct qeth_qdio_out_buffer *buf;
2757         int rc;
2758         int i;
2759         unsigned int qdio_flags;
2760
2761         for (i = index; i < index + count; ++i) {
2762                 buf = &queue->bufs[i % QDIO_MAX_BUFFERS_PER_Q];
2763                 buf->buffer->element[buf->next_element_to_fill - 1].flags |=
2764                                 SBAL_FLAGS_LAST_ENTRY;
2765
2766                 if (queue->card->info.type == QETH_CARD_TYPE_IQD)
2767                         continue;
2768
2769                 if (!queue->do_pack) {
2770                         if ((atomic_read(&queue->used_buffers) >=
2771                                 (QETH_HIGH_WATERMARK_PACK -
2772                                  QETH_WATERMARK_PACK_FUZZ)) &&
2773                             !atomic_read(&queue->set_pci_flags_count)) {
2774                                 /* it's likely that we'll go to packing
2775                                  * mode soon */
2776                                 atomic_inc(&queue->set_pci_flags_count);
2777                                 buf->buffer->element[0].flags |= 0x40;
2778                         }
2779                 } else {
2780                         if (!atomic_read(&queue->set_pci_flags_count)) {
2781                                 /*
2782                                  * there's no outstanding PCI any more, so we
2783                                  * have to request a PCI to be sure the the PCI
2784                                  * will wake at some time in the future then we
2785                                  * can flush packed buffers that might still be
2786                                  * hanging around, which can happen if no
2787                                  * further send was requested by the stack
2788                                  */
2789                                 atomic_inc(&queue->set_pci_flags_count);
2790                                 buf->buffer->element[0].flags |= 0x40;
2791                         }
2792                 }
2793         }
2794
2795         queue->card->dev->trans_start = jiffies;
2796         if (queue->card->options.performance_stats) {
2797                 queue->card->perf_stats.outbound_do_qdio_cnt++;
2798                 queue->card->perf_stats.outbound_do_qdio_start_time =
2799                         qeth_get_micros();
2800         }
2801         qdio_flags = QDIO_FLAG_SYNC_OUTPUT;
2802         if (atomic_read(&queue->set_pci_flags_count))
2803                 qdio_flags |= QDIO_FLAG_PCI_OUT;
2804         rc = do_QDIO(CARD_DDEV(queue->card), qdio_flags,
2805                      queue->queue_no, index, count);
2806         if (queue->card->options.performance_stats)
2807                 queue->card->perf_stats.outbound_do_qdio_time +=
2808                         qeth_get_micros() -
2809                         queue->card->perf_stats.outbound_do_qdio_start_time;
2810         if (rc) {
2811                 QETH_DBF_TEXT(TRACE, 2, "flushbuf");
2812                 QETH_DBF_TEXT_(TRACE, 2, " err%d", rc);
2813                 QETH_DBF_TEXT_(TRACE, 2, "%s", CARD_DDEV_ID(queue->card));
2814                 queue->card->stats.tx_errors += count;
2815                 /* this must not happen under normal circumstances. if it
2816                  * happens something is really wrong -> recover */
2817                 qeth_schedule_recovery(queue->card);
2818                 return;
2819         }
2820         atomic_add(count, &queue->used_buffers);
2821         if (queue->card->options.performance_stats)
2822                 queue->card->perf_stats.bufs_sent += count;
2823 }
2824
2825 static void qeth_check_outbound_queue(struct qeth_qdio_out_q *queue)
2826 {
2827         int index;
2828         int flush_cnt = 0;
2829         int q_was_packing = 0;
2830
2831         /*
2832          * check if weed have to switch to non-packing mode or if
2833          * we have to get a pci flag out on the queue
2834          */
2835         if ((atomic_read(&queue->used_buffers) <= QETH_LOW_WATERMARK_PACK) ||
2836             !atomic_read(&queue->set_pci_flags_count)) {
2837                 if (atomic_xchg(&queue->state, QETH_OUT_Q_LOCKED_FLUSH) ==
2838                                 QETH_OUT_Q_UNLOCKED) {
2839                         /*
2840                          * If we get in here, there was no action in
2841                          * do_send_packet. So, we check if there is a
2842                          * packing buffer to be flushed here.
2843                          */
2844                         netif_stop_queue(queue->card->dev);
2845                         index = queue->next_buf_to_fill;
2846                         q_was_packing = queue->do_pack;
2847                         /* queue->do_pack may change */
2848                         barrier();
2849                         flush_cnt += qeth_switch_to_nonpacking_if_needed(queue);
2850                         if (!flush_cnt &&
2851                             !atomic_read(&queue->set_pci_flags_count))
2852                                 flush_cnt +=
2853                                         qeth_flush_buffers_on_no_pci(queue);
2854                         if (queue->card->options.performance_stats &&
2855                             q_was_packing)
2856                                 queue->card->perf_stats.bufs_sent_pack +=
2857                                         flush_cnt;
2858                         if (flush_cnt)
2859                                 qeth_flush_buffers(queue, index, flush_cnt);
2860                         atomic_set(&queue->state, QETH_OUT_Q_UNLOCKED);
2861                 }
2862         }
2863 }
2864
2865 void qeth_qdio_output_handler(struct ccw_device *ccwdev,
2866                 unsigned int qdio_error, int __queue, int first_element,
2867                 int count, unsigned long card_ptr)
2868 {
2869         struct qeth_card *card        = (struct qeth_card *) card_ptr;
2870         struct qeth_qdio_out_q *queue = card->qdio.out_qs[__queue];
2871         struct qeth_qdio_out_buffer *buffer;
2872         int i;
2873
2874         QETH_DBF_TEXT(TRACE, 6, "qdouhdl");
2875         if (qdio_error & QDIO_ERROR_ACTIVATE_CHECK_CONDITION) {
2876                 QETH_DBF_TEXT(TRACE, 2, "achkcond");
2877                 QETH_DBF_TEXT_(TRACE, 2, "%s", CARD_BUS_ID(card));
2878                 netif_stop_queue(card->dev);
2879                 qeth_schedule_recovery(card);
2880                 return;
2881         }
2882         if (card->options.performance_stats) {
2883                 card->perf_stats.outbound_handler_cnt++;
2884                 card->perf_stats.outbound_handler_start_time =
2885                         qeth_get_micros();
2886         }
2887         for (i = first_element; i < (first_element + count); ++i) {
2888                 buffer = &queue->bufs[i % QDIO_MAX_BUFFERS_PER_Q];
2889                 /*we only handle the KICK_IT error by doing a recovery */
2890                 if (qeth_handle_send_error(card, buffer, qdio_error)
2891                                 == QETH_SEND_ERROR_KICK_IT){
2892                         netif_stop_queue(card->dev);
2893                         qeth_schedule_recovery(card);
2894                         return;
2895                 }
2896                 qeth_clear_output_buffer(queue, buffer);
2897         }
2898         atomic_sub(count, &queue->used_buffers);
2899         /* check if we need to do something on this outbound queue */
2900         if (card->info.type != QETH_CARD_TYPE_IQD)
2901                 qeth_check_outbound_queue(queue);
2902
2903         netif_wake_queue(queue->card->dev);
2904         if (card->options.performance_stats)
2905                 card->perf_stats.outbound_handler_time += qeth_get_micros() -
2906                         card->perf_stats.outbound_handler_start_time;
2907 }
2908 EXPORT_SYMBOL_GPL(qeth_qdio_output_handler);
2909
2910 int qeth_get_cast_type(struct qeth_card *card, struct sk_buff *skb)
2911 {
2912         int cast_type = RTN_UNSPEC;
2913
2914         if (card->info.type == QETH_CARD_TYPE_OSN)
2915                 return cast_type;
2916
2917         if (skb->dst && skb->dst->neighbour) {
2918                 cast_type = skb->dst->neighbour->type;
2919                 if ((cast_type == RTN_BROADCAST) ||
2920                     (cast_type == RTN_MULTICAST) ||
2921                     (cast_type == RTN_ANYCAST))
2922                         return cast_type;
2923                 else
2924                         return RTN_UNSPEC;
2925         }
2926         /* try something else */
2927         if (skb->protocol == ETH_P_IPV6)
2928                 return (skb_network_header(skb)[24] == 0xff) ?
2929                                 RTN_MULTICAST : 0;
2930         else if (skb->protocol == ETH_P_IP)
2931                 return ((skb_network_header(skb)[16] & 0xf0) == 0xe0) ?
2932                                 RTN_MULTICAST : 0;
2933         /* ... */
2934         if (!memcmp(skb->data, skb->dev->broadcast, 6))
2935                 return RTN_BROADCAST;
2936         else {
2937                 u16 hdr_mac;
2938
2939                 hdr_mac = *((u16 *)skb->data);
2940                 /* tr multicast? */
2941                 switch (card->info.link_type) {
2942                 case QETH_LINK_TYPE_HSTR:
2943                 case QETH_LINK_TYPE_LANE_TR:
2944                         if ((hdr_mac == QETH_TR_MAC_NC) ||
2945                             (hdr_mac == QETH_TR_MAC_C))
2946                                 return RTN_MULTICAST;
2947                         break;
2948                 /* eth or so multicast? */
2949                 default:
2950                 if ((hdr_mac == QETH_ETH_MAC_V4) ||
2951                             (hdr_mac == QETH_ETH_MAC_V6))
2952                                 return RTN_MULTICAST;
2953                 }
2954         }
2955         return cast_type;
2956 }
2957 EXPORT_SYMBOL_GPL(qeth_get_cast_type);
2958
2959 int qeth_get_priority_queue(struct qeth_card *card, struct sk_buff *skb,
2960                         int ipv, int cast_type)
2961 {
2962         if (!ipv && (card->info.type == QETH_CARD_TYPE_OSAE))
2963                 return card->qdio.default_out_queue;
2964         switch (card->qdio.no_out_queues) {
2965         case 4:
2966                 if (cast_type && card->info.is_multicast_different)
2967                         return card->info.is_multicast_different &
2968                                 (card->qdio.no_out_queues - 1);
2969                 if (card->qdio.do_prio_queueing && (ipv == 4)) {
2970                         const u8 tos = ip_hdr(skb)->tos;
2971
2972                         if (card->qdio.do_prio_queueing ==
2973                                 QETH_PRIO_Q_ING_TOS) {
2974                                 if (tos & IP_TOS_NOTIMPORTANT)
2975                                         return 3;
2976                                 if (tos & IP_TOS_HIGHRELIABILITY)
2977                                         return 2;
2978                                 if (tos & IP_TOS_HIGHTHROUGHPUT)
2979                                         return 1;
2980                                 if (tos & IP_TOS_LOWDELAY)
2981                                         return 0;
2982                         }
2983                         if (card->qdio.do_prio_queueing ==
2984                                 QETH_PRIO_Q_ING_PREC)
2985                                 return 3 - (tos >> 6);
2986                 } else if (card->qdio.do_prio_queueing && (ipv == 6)) {
2987                         /* TODO: IPv6!!! */
2988                 }
2989                 return card->qdio.default_out_queue;
2990         case 1: /* fallthrough for single-out-queue 1920-device */
2991         default:
2992                 return card->qdio.default_out_queue;
2993         }
2994 }
2995 EXPORT_SYMBOL_GPL(qeth_get_priority_queue);
2996
2997 int qeth_get_elements_no(struct qeth_card *card, void *hdr,
2998                      struct sk_buff *skb, int elems)
2999 {
3000         int elements_needed = 0;
3001
3002         if (skb_shinfo(skb)->nr_frags > 0)
3003                 elements_needed = (skb_shinfo(skb)->nr_frags + 1);
3004         if (elements_needed == 0)
3005                 elements_needed = 1 + (((((unsigned long) hdr) % PAGE_SIZE)
3006                         + skb->len) >> PAGE_SHIFT);
3007         if ((elements_needed + elems) > QETH_MAX_BUFFER_ELEMENTS(card)) {
3008                 QETH_DBF_MESSAGE(2, "Invalid size of IP packet "
3009                         "(Number=%d / Length=%d). Discarded.\n",
3010                         (elements_needed+elems), skb->len);
3011                 return 0;
3012         }
3013         return elements_needed;
3014 }
3015 EXPORT_SYMBOL_GPL(qeth_get_elements_no);
3016
3017 static inline void __qeth_fill_buffer(struct sk_buff *skb,
3018         struct qdio_buffer *buffer, int is_tso, int *next_element_to_fill)
3019 {
3020         int length = skb->len;
3021         int length_here;
3022         int element;
3023         char *data;
3024         int first_lap ;
3025
3026         element = *next_element_to_fill;
3027         data = skb->data;
3028         first_lap = (is_tso == 0 ? 1 : 0);
3029
3030         while (length > 0) {
3031                 /* length_here is the remaining amount of data in this page */
3032                 length_here = PAGE_SIZE - ((unsigned long) data % PAGE_SIZE);
3033                 if (length < length_here)
3034                         length_here = length;
3035
3036                 buffer->element[element].addr = data;
3037                 buffer->element[element].length = length_here;
3038                 length -= length_here;
3039                 if (!length) {
3040                         if (first_lap)
3041                                 buffer->element[element].flags = 0;
3042                         else
3043                                 buffer->element[element].flags =
3044                                     SBAL_FLAGS_LAST_FRAG;
3045                 } else {
3046                         if (first_lap)
3047                                 buffer->element[element].flags =
3048                                     SBAL_FLAGS_FIRST_FRAG;
3049                         else
3050                                 buffer->element[element].flags =
3051                                     SBAL_FLAGS_MIDDLE_FRAG;
3052                 }
3053                 data += length_here;
3054                 element++;
3055                 first_lap = 0;
3056         }
3057         *next_element_to_fill = element;
3058 }
3059
3060 static inline int qeth_fill_buffer(struct qeth_qdio_out_q *queue,
3061                 struct qeth_qdio_out_buffer *buf, struct sk_buff *skb)
3062 {
3063         struct qdio_buffer *buffer;
3064         struct qeth_hdr_tso *hdr;
3065         int flush_cnt = 0, hdr_len, large_send = 0;
3066
3067         buffer = buf->buffer;
3068         atomic_inc(&skb->users);
3069         skb_queue_tail(&buf->skb_list, skb);
3070
3071         hdr  = (struct qeth_hdr_tso *) skb->data;
3072         /*check first on TSO ....*/
3073         if (hdr->hdr.hdr.l3.id == QETH_HEADER_TYPE_TSO) {
3074                 int element = buf->next_element_to_fill;
3075
3076                 hdr_len = sizeof(struct qeth_hdr_tso) + hdr->ext.dg_hdr_len;
3077                 /*fill first buffer entry only with header information */
3078                 buffer->element[element].addr = skb->data;
3079                 buffer->element[element].length = hdr_len;
3080                 buffer->element[element].flags = SBAL_FLAGS_FIRST_FRAG;
3081                 buf->next_element_to_fill++;
3082                 skb->data += hdr_len;
3083                 skb->len  -= hdr_len;
3084                 large_send = 1;
3085         }
3086         if (skb_shinfo(skb)->nr_frags == 0)
3087                 __qeth_fill_buffer(skb, buffer, large_send,
3088                                    (int *)&buf->next_element_to_fill);
3089         else
3090                 __qeth_fill_buffer_frag(skb, buffer, large_send,
3091                                         (int *)&buf->next_element_to_fill);
3092
3093         if (!queue->do_pack) {
3094                 QETH_DBF_TEXT(TRACE, 6, "fillbfnp");
3095                 /* set state to PRIMED -> will be flushed */
3096                 atomic_set(&buf->state, QETH_QDIO_BUF_PRIMED);
3097                 flush_cnt = 1;
3098         } else {
3099                 QETH_DBF_TEXT(TRACE, 6, "fillbfpa");
3100                 if (queue->card->options.performance_stats)
3101                         queue->card->perf_stats.skbs_sent_pack++;
3102                 if (buf->next_element_to_fill >=
3103                                 QETH_MAX_BUFFER_ELEMENTS(queue->card)) {
3104                         /*
3105                          * packed buffer if full -> set state PRIMED
3106                          * -> will be flushed
3107                          */
3108                         atomic_set(&buf->state, QETH_QDIO_BUF_PRIMED);
3109                         flush_cnt = 1;
3110                 }
3111         }
3112         return flush_cnt;
3113 }
3114
3115 int qeth_do_send_packet_fast(struct qeth_card *card,
3116                 struct qeth_qdio_out_q *queue, struct sk_buff *skb,
3117                 struct qeth_hdr *hdr, int elements_needed,
3118                 struct qeth_eddp_context *ctx)
3119 {
3120         struct qeth_qdio_out_buffer *buffer;
3121         int buffers_needed = 0;
3122         int flush_cnt = 0;
3123         int index;
3124
3125         /* spin until we get the queue ... */
3126         while (atomic_cmpxchg(&queue->state, QETH_OUT_Q_UNLOCKED,
3127                               QETH_OUT_Q_LOCKED) != QETH_OUT_Q_UNLOCKED);
3128         /* ... now we've got the queue */
3129         index = queue->next_buf_to_fill;
3130         buffer = &queue->bufs[queue->next_buf_to_fill];
3131         /*
3132          * check if buffer is empty to make sure that we do not 'overtake'
3133          * ourselves and try to fill a buffer that is already primed
3134          */
3135         if (atomic_read(&buffer->state) != QETH_QDIO_BUF_EMPTY)
3136                 goto out;
3137         if (ctx == NULL)
3138                 queue->next_buf_to_fill = (queue->next_buf_to_fill + 1) %
3139                                           QDIO_MAX_BUFFERS_PER_Q;
3140         else {
3141                 buffers_needed = qeth_eddp_check_buffers_for_context(queue,
3142                                                                         ctx);
3143                 if (buffers_needed < 0)
3144                         goto out;
3145                 queue->next_buf_to_fill =
3146                         (queue->next_buf_to_fill + buffers_needed) %
3147                         QDIO_MAX_BUFFERS_PER_Q;
3148         }
3149         atomic_set(&queue->state, QETH_OUT_Q_UNLOCKED);
3150         if (ctx == NULL) {
3151                 qeth_fill_buffer(queue, buffer, skb);
3152                 qeth_flush_buffers(queue, index, 1);
3153         } else {
3154                 flush_cnt = qeth_eddp_fill_buffer(queue, ctx, index);
3155                 WARN_ON(buffers_needed != flush_cnt);
3156                 qeth_flush_buffers(queue, index, flush_cnt);
3157         }
3158         return 0;
3159 out:
3160         atomic_set(&queue->state, QETH_OUT_Q_UNLOCKED);
3161         return -EBUSY;
3162 }
3163 EXPORT_SYMBOL_GPL(qeth_do_send_packet_fast);
3164
3165 int qeth_do_send_packet(struct qeth_card *card, struct qeth_qdio_out_q *queue,
3166                 struct sk_buff *skb, struct qeth_hdr *hdr,
3167                 int elements_needed, struct qeth_eddp_context *ctx)
3168 {
3169         struct qeth_qdio_out_buffer *buffer;
3170         int start_index;
3171         int flush_count = 0;
3172         int do_pack = 0;
3173         int tmp;
3174         int rc = 0;
3175
3176         /* spin until we get the queue ... */
3177         while (atomic_cmpxchg(&queue->state, QETH_OUT_Q_UNLOCKED,
3178                               QETH_OUT_Q_LOCKED) != QETH_OUT_Q_UNLOCKED);
3179         start_index = queue->next_buf_to_fill;
3180         buffer = &queue->bufs[queue->next_buf_to_fill];
3181         /*
3182          * check if buffer is empty to make sure that we do not 'overtake'
3183          * ourselves and try to fill a buffer that is already primed
3184          */
3185         if (atomic_read(&buffer->state) != QETH_QDIO_BUF_EMPTY) {
3186                 atomic_set(&queue->state, QETH_OUT_Q_UNLOCKED);
3187                 return -EBUSY;
3188         }
3189         /* check if we need to switch packing state of this queue */
3190         qeth_switch_to_packing_if_needed(queue);
3191         if (queue->do_pack) {
3192                 do_pack = 1;
3193                 if (ctx == NULL) {
3194                         /* does packet fit in current buffer? */
3195                         if ((QETH_MAX_BUFFER_ELEMENTS(card) -
3196                             buffer->next_element_to_fill) < elements_needed) {
3197                                 /* ... no -> set state PRIMED */
3198                                 atomic_set(&buffer->state,
3199                                         QETH_QDIO_BUF_PRIMED);
3200                                 flush_count++;
3201                                 queue->next_buf_to_fill =
3202                                         (queue->next_buf_to_fill + 1) %
3203                                         QDIO_MAX_BUFFERS_PER_Q;
3204                                 buffer = &queue->bufs[queue->next_buf_to_fill];
3205                                 /* we did a step forward, so check buffer state
3206                                  * again */
3207                                 if (atomic_read(&buffer->state) !=
3208                                                 QETH_QDIO_BUF_EMPTY){
3209                                         qeth_flush_buffers(queue, start_index,
3210                                                            flush_count);
3211                                         atomic_set(&queue->state,
3212                                                 QETH_OUT_Q_UNLOCKED);
3213                                         return -EBUSY;
3214                                 }
3215                         }
3216                 } else {
3217                         /* check if we have enough elements (including following
3218                          * free buffers) to handle eddp context */
3219                         if (qeth_eddp_check_buffers_for_context(queue, ctx)
3220                                 < 0) {
3221                                 rc = -EBUSY;
3222                                 goto out;
3223                         }
3224                 }
3225         }
3226         if (ctx == NULL)
3227                 tmp = qeth_fill_buffer(queue, buffer, skb);
3228         else {
3229                 tmp = qeth_eddp_fill_buffer(queue, ctx,
3230                                                 queue->next_buf_to_fill);
3231                 if (tmp < 0) {
3232                         rc = -EBUSY;
3233                         goto out;
3234                 }
3235         }
3236         queue->next_buf_to_fill = (queue->next_buf_to_fill + tmp) %
3237                                   QDIO_MAX_BUFFERS_PER_Q;
3238         flush_count += tmp;
3239 out:
3240         if (flush_count)
3241                 qeth_flush_buffers(queue, start_index, flush_count);
3242         else if (!atomic_read(&queue->set_pci_flags_count))
3243                 atomic_xchg(&queue->state, QETH_OUT_Q_LOCKED_FLUSH);
3244         /*
3245          * queue->state will go from LOCKED -> UNLOCKED or from
3246          * LOCKED_FLUSH -> LOCKED if output_handler wanted to 'notify' us
3247          * (switch packing state or flush buffer to get another pci flag out).
3248          * In that case we will enter this loop
3249          */
3250         while (atomic_dec_return(&queue->state)) {
3251                 flush_count = 0;
3252                 start_index = queue->next_buf_to_fill;
3253                 /* check if we can go back to non-packing state */
3254                 flush_count += qeth_switch_to_nonpacking_if_needed(queue);
3255                 /*
3256                  * check if we need to flush a packing buffer to get a pci
3257                  * flag out on the queue
3258                  */
3259                 if (!flush_count && !atomic_read(&queue->set_pci_flags_count))
3260                         flush_count += qeth_flush_buffers_on_no_pci(queue);
3261                 if (flush_count)
3262                         qeth_flush_buffers(queue, start_index, flush_count);
3263         }
3264         /* at this point the queue is UNLOCKED again */
3265         if (queue->card->options.performance_stats && do_pack)
3266                 queue->card->perf_stats.bufs_sent_pack += flush_count;
3267
3268         return rc;
3269 }
3270 EXPORT_SYMBOL_GPL(qeth_do_send_packet);
3271
3272 static int qeth_setadp_promisc_mode_cb(struct qeth_card *card,
3273                 struct qeth_reply *reply, unsigned long data)
3274 {
3275         struct qeth_ipa_cmd *cmd;
3276         struct qeth_ipacmd_setadpparms *setparms;
3277
3278         QETH_DBF_TEXT(TRACE, 4, "prmadpcb");
3279
3280         cmd = (struct qeth_ipa_cmd *) data;
3281         setparms = &(cmd->data.setadapterparms);
3282
3283         qeth_default_setadapterparms_cb(card, reply, (unsigned long)cmd);
3284         if (cmd->hdr.return_code) {
3285                 QETH_DBF_TEXT_(TRACE, 4, "prmrc%2.2x", cmd->hdr.return_code);
3286                 setparms->data.mode = SET_PROMISC_MODE_OFF;
3287         }
3288         card->info.promisc_mode = setparms->data.mode;
3289         return 0;
3290 }
3291
3292 void qeth_setadp_promisc_mode(struct qeth_card *card)
3293 {
3294         enum qeth_ipa_promisc_modes mode;
3295         struct net_device *dev = card->dev;
3296         struct qeth_cmd_buffer *iob;
3297         struct qeth_ipa_cmd *cmd;
3298
3299         QETH_DBF_TEXT(TRACE, 4, "setprom");
3300
3301         if (((dev->flags & IFF_PROMISC) &&
3302              (card->info.promisc_mode == SET_PROMISC_MODE_ON)) ||
3303             (!(dev->flags & IFF_PROMISC) &&
3304              (card->info.promisc_mode == SET_PROMISC_MODE_OFF)))
3305                 return;
3306         mode = SET_PROMISC_MODE_OFF;
3307         if (dev->flags & IFF_PROMISC)
3308                 mode = SET_PROMISC_MODE_ON;
3309         QETH_DBF_TEXT_(TRACE, 4, "mode:%x", mode);
3310
3311         iob = qeth_get_adapter_cmd(card, IPA_SETADP_SET_PROMISC_MODE,
3312                         sizeof(struct qeth_ipacmd_setadpparms));
3313         cmd = (struct qeth_ipa_cmd *)(iob->data + IPA_PDU_HEADER_SIZE);
3314         cmd->data.setadapterparms.data.mode = mode;
3315         qeth_send_ipa_cmd(card, iob, qeth_setadp_promisc_mode_cb, NULL);
3316 }
3317 EXPORT_SYMBOL_GPL(qeth_setadp_promisc_mode);
3318
3319 int qeth_change_mtu(struct net_device *dev, int new_mtu)
3320 {
3321         struct qeth_card *card;
3322         char dbf_text[15];
3323
3324         card = dev->ml_priv;
3325
3326         QETH_DBF_TEXT(TRACE, 4, "chgmtu");
3327         sprintf(dbf_text, "%8x", new_mtu);
3328         QETH_DBF_TEXT(TRACE, 4, dbf_text);
3329
3330         if (new_mtu < 64)
3331                 return -EINVAL;
3332         if (new_mtu > 65535)
3333                 return -EINVAL;
3334         if ((!qeth_is_supported(card, IPA_IP_FRAGMENTATION)) &&
3335             (!qeth_mtu_is_valid(card, new_mtu)))
3336                 return -EINVAL;
3337         dev->mtu = new_mtu;
3338         return 0;
3339 }
3340 EXPORT_SYMBOL_GPL(qeth_change_mtu);
3341
3342 struct net_device_stats *qeth_get_stats(struct net_device *dev)
3343 {
3344         struct qeth_card *card;
3345
3346         card = dev->ml_priv;
3347
3348         QETH_DBF_TEXT(TRACE, 5, "getstat");
3349
3350         return &card->stats;
3351 }
3352 EXPORT_SYMBOL_GPL(qeth_get_stats);
3353
3354 static int qeth_setadpparms_change_macaddr_cb(struct qeth_card *card,
3355                 struct qeth_reply *reply, unsigned long data)
3356 {
3357         struct qeth_ipa_cmd *cmd;
3358
3359         QETH_DBF_TEXT(TRACE, 4, "chgmaccb");
3360
3361         cmd = (struct qeth_ipa_cmd *) data;
3362         if (!card->options.layer2 ||
3363             !(card->info.mac_bits & QETH_LAYER2_MAC_READ)) {
3364                 memcpy(card->dev->dev_addr,
3365                        &cmd->data.setadapterparms.data.change_addr.addr,
3366                        OSA_ADDR_LEN);
3367                 card->info.mac_bits |= QETH_LAYER2_MAC_READ;
3368         }
3369         qeth_default_setadapterparms_cb(card, reply, (unsigned long) cmd);
3370         return 0;
3371 }
3372
3373 int qeth_setadpparms_change_macaddr(struct qeth_card *card)
3374 {
3375         int rc;
3376         struct qeth_cmd_buffer *iob;
3377         struct qeth_ipa_cmd *cmd;
3378
3379         QETH_DBF_TEXT(TRACE, 4, "chgmac");
3380
3381         iob = qeth_get_adapter_cmd(card, IPA_SETADP_ALTER_MAC_ADDRESS,
3382                                    sizeof(struct qeth_ipacmd_setadpparms));
3383         cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
3384         cmd->data.setadapterparms.data.change_addr.cmd = CHANGE_ADDR_READ_MAC;
3385         cmd->data.setadapterparms.data.change_addr.addr_size = OSA_ADDR_LEN;
3386         memcpy(&cmd->data.setadapterparms.data.change_addr.addr,
3387                card->dev->dev_addr, OSA_ADDR_LEN);
3388         rc = qeth_send_ipa_cmd(card, iob, qeth_setadpparms_change_macaddr_cb,
3389                                NULL);
3390         return rc;
3391 }
3392 EXPORT_SYMBOL_GPL(qeth_setadpparms_change_macaddr);
3393
3394 void qeth_tx_timeout(struct net_device *dev)
3395 {
3396         struct qeth_card *card;
3397
3398         card = dev->ml_priv;
3399         card->stats.tx_errors++;
3400         qeth_schedule_recovery(card);
3401 }
3402 EXPORT_SYMBOL_GPL(qeth_tx_timeout);
3403
3404 int qeth_mdio_read(struct net_device *dev, int phy_id, int regnum)
3405 {
3406         struct qeth_card *card = dev->ml_priv;
3407         int rc = 0;
3408
3409         switch (regnum) {
3410         case MII_BMCR: /* Basic mode control register */
3411                 rc = BMCR_FULLDPLX;
3412                 if ((card->info.link_type != QETH_LINK_TYPE_GBIT_ETH) &&
3413                     (card->info.link_type != QETH_LINK_TYPE_OSN) &&
3414                     (card->info.link_type != QETH_LINK_TYPE_10GBIT_ETH))
3415                         rc |= BMCR_SPEED100;
3416                 break;
3417         case MII_BMSR: /* Basic mode status register */
3418                 rc = BMSR_ERCAP | BMSR_ANEGCOMPLETE | BMSR_LSTATUS |
3419                      BMSR_10HALF | BMSR_10FULL | BMSR_100HALF | BMSR_100FULL |
3420                      BMSR_100BASE4;
3421                 break;
3422         case MII_PHYSID1: /* PHYS ID 1 */
3423                 rc = (dev->dev_addr[0] << 16) | (dev->dev_addr[1] << 8) |
3424                      dev->dev_addr[2];
3425                 rc = (rc >> 5) & 0xFFFF;
3426                 break;
3427         case MII_PHYSID2: /* PHYS ID 2 */
3428                 rc = (dev->dev_addr[2] << 10) & 0xFFFF;
3429                 break;
3430         case MII_ADVERTISE: /* Advertisement control reg */
3431                 rc = ADVERTISE_ALL;
3432                 break;
3433         case MII_LPA: /* Link partner ability reg */
3434                 rc = LPA_10HALF | LPA_10FULL | LPA_100HALF | LPA_100FULL |
3435                      LPA_100BASE4 | LPA_LPACK;
3436                 break;
3437         case MII_EXPANSION: /* Expansion register */
3438                 break;
3439         case MII_DCOUNTER: /* disconnect counter */
3440                 break;
3441         case MII_FCSCOUNTER: /* false carrier counter */
3442                 break;
3443         case MII_NWAYTEST: /* N-way auto-neg test register */
3444                 break;
3445         case MII_RERRCOUNTER: /* rx error counter */
3446                 rc = card->stats.rx_errors;
3447                 break;
3448         case MII_SREVISION: /* silicon revision */
3449                 break;
3450         case MII_RESV1: /* reserved 1 */
3451                 break;
3452         case MII_LBRERROR: /* loopback, rx, bypass error */
3453                 break;
3454         case MII_PHYADDR: /* physical address */
3455                 break;
3456         case MII_RESV2: /* reserved 2 */
3457                 break;
3458         case MII_TPISTATUS: /* TPI status for 10mbps */
3459                 break;
3460         case MII_NCONFIG: /* network interface config */
3461                 break;
3462         default:
3463                 break;
3464         }
3465         return rc;
3466 }
3467 EXPORT_SYMBOL_GPL(qeth_mdio_read);
3468
3469 static int qeth_send_ipa_snmp_cmd(struct qeth_card *card,
3470                 struct qeth_cmd_buffer *iob, int len,
3471                 int (*reply_cb)(struct qeth_card *, struct qeth_reply *,
3472                         unsigned long),
3473                 void *reply_param)
3474 {
3475         u16 s1, s2;
3476
3477         QETH_DBF_TEXT(TRACE, 4, "sendsnmp");
3478
3479         memcpy(iob->data, IPA_PDU_HEADER, IPA_PDU_HEADER_SIZE);
3480         memcpy(QETH_IPA_CMD_DEST_ADDR(iob->data),
3481                &card->token.ulp_connection_r, QETH_MPC_TOKEN_LENGTH);
3482         /* adjust PDU length fields in IPA_PDU_HEADER */
3483         s1 = (u32) IPA_PDU_HEADER_SIZE + len;
3484         s2 = (u32) len;
3485         memcpy(QETH_IPA_PDU_LEN_TOTAL(iob->data), &s1, 2);
3486         memcpy(QETH_IPA_PDU_LEN_PDU1(iob->data), &s2, 2);
3487         memcpy(QETH_IPA_PDU_LEN_PDU2(iob->data), &s2, 2);
3488         memcpy(QETH_IPA_PDU_LEN_PDU3(iob->data), &s2, 2);
3489         return qeth_send_control_data(card, IPA_PDU_HEADER_SIZE + len, iob,
3490                                       reply_cb, reply_param);
3491 }
3492
3493 static int qeth_snmp_command_cb(struct qeth_card *card,
3494                 struct qeth_reply *reply, unsigned long sdata)
3495 {
3496         struct qeth_ipa_cmd *cmd;
3497         struct qeth_arp_query_info *qinfo;
3498         struct qeth_snmp_cmd *snmp;
3499         unsigned char *data;
3500         __u16 data_len;
3501
3502         QETH_DBF_TEXT(TRACE, 3, "snpcmdcb");
3503
3504         cmd = (struct qeth_ipa_cmd *) sdata;
3505         data = (unsigned char *)((char *)cmd - reply->offset);
3506         qinfo = (struct qeth_arp_query_info *) reply->param;
3507         snmp = &cmd->data.setadapterparms.data.snmp;
3508
3509         if (cmd->hdr.return_code) {
3510                 QETH_DBF_TEXT_(TRACE, 4, "scer1%i", cmd->hdr.return_code);
3511                 return 0;
3512         }
3513         if (cmd->data.setadapterparms.hdr.return_code) {
3514                 cmd->hdr.return_code =
3515                         cmd->data.setadapterparms.hdr.return_code;
3516                 QETH_DBF_TEXT_(TRACE, 4, "scer2%i", cmd->hdr.return_code);
3517                 return 0;
3518         }
3519         data_len = *((__u16 *)QETH_IPA_PDU_LEN_PDU1(data));
3520         if (cmd->data.setadapterparms.hdr.seq_no == 1)
3521                 data_len -= (__u16)((char *)&snmp->data - (char *)cmd);
3522         else
3523                 data_len -= (__u16)((char *)&snmp->request - (char *)cmd);
3524
3525         /* check if there is enough room in userspace */
3526         if ((qinfo->udata_len - qinfo->udata_offset) < data_len) {
3527                 QETH_DBF_TEXT_(TRACE, 4, "scer3%i", -ENOMEM);
3528                 cmd->hdr.return_code = -ENOMEM;
3529                 return 0;
3530         }
3531         QETH_DBF_TEXT_(TRACE, 4, "snore%i",
3532                        cmd->data.setadapterparms.hdr.used_total);
3533         QETH_DBF_TEXT_(TRACE, 4, "sseqn%i",
3534                 cmd->data.setadapterparms.hdr.seq_no);
3535         /*copy entries to user buffer*/
3536         if (cmd->data.setadapterparms.hdr.seq_no == 1) {
3537                 memcpy(qinfo->udata + qinfo->udata_offset,
3538                        (char *)snmp,
3539                        data_len + offsetof(struct qeth_snmp_cmd, data));
3540                 qinfo->udata_offset += offsetof(struct qeth_snmp_cmd, data);
3541         } else {
3542                 memcpy(qinfo->udata + qinfo->udata_offset,
3543                        (char *)&snmp->request, data_len);
3544         }
3545         qinfo->udata_offset += data_len;
3546         /* check if all replies received ... */
3547                 QETH_DBF_TEXT_(TRACE, 4, "srtot%i",
3548                                cmd->data.setadapterparms.hdr.used_total);
3549                 QETH_DBF_TEXT_(TRACE, 4, "srseq%i",
3550                                cmd->data.setadapterparms.hdr.seq_no);
3551         if (cmd->data.setadapterparms.hdr.seq_no <
3552             cmd->data.setadapterparms.hdr.used_total)
3553                 return 1;
3554         return 0;
3555 }
3556
3557 int qeth_snmp_command(struct qeth_card *card, char __user *udata)
3558 {
3559         struct qeth_cmd_buffer *iob;
3560         struct qeth_ipa_cmd *cmd;
3561         struct qeth_snmp_ureq *ureq;
3562         int req_len;
3563         struct qeth_arp_query_info qinfo = {0, };
3564         int rc = 0;
3565
3566         QETH_DBF_TEXT(TRACE, 3, "snmpcmd");
3567
3568         if (card->info.guestlan)
3569                 return -EOPNOTSUPP;
3570
3571         if ((!qeth_adp_supported(card, IPA_SETADP_SET_SNMP_CONTROL)) &&
3572             (!card->options.layer2)) {
3573                 return -EOPNOTSUPP;
3574         }
3575         /* skip 4 bytes (data_len struct member) to get req_len */
3576         if (copy_from_user(&req_len, udata + sizeof(int), sizeof(int)))
3577                 return -EFAULT;
3578         ureq = kmalloc(req_len+sizeof(struct qeth_snmp_ureq_hdr), GFP_KERNEL);
3579         if (!ureq) {
3580                 QETH_DBF_TEXT(TRACE, 2, "snmpnome");
3581                 return -ENOMEM;
3582         }
3583         if (copy_from_user(ureq, udata,
3584                         req_len + sizeof(struct qeth_snmp_ureq_hdr))) {
3585                 kfree(ureq);
3586                 return -EFAULT;
3587         }
3588         qinfo.udata_len = ureq->hdr.data_len;
3589         qinfo.udata = kzalloc(qinfo.udata_len, GFP_KERNEL);
3590         if (!qinfo.udata) {
3591                 kfree(ureq);
3592                 return -ENOMEM;
3593         }
3594         qinfo.udata_offset = sizeof(struct qeth_snmp_ureq_hdr);
3595
3596         iob = qeth_get_adapter_cmd(card, IPA_SETADP_SET_SNMP_CONTROL,
3597                                    QETH_SNMP_SETADP_CMDLENGTH + req_len);
3598         cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
3599         memcpy(&cmd->data.setadapterparms.data.snmp, &ureq->cmd, req_len);
3600         rc = qeth_send_ipa_snmp_cmd(card, iob, QETH_SETADP_BASE_LEN + req_len,
3601                                     qeth_snmp_command_cb, (void *)&qinfo);
3602         if (rc)
3603                 QETH_DBF_MESSAGE(2, "SNMP command failed on %s: (0x%x)\n",
3604                            QETH_CARD_IFNAME(card), rc);
3605         else {
3606                 if (copy_to_user(udata, qinfo.udata, qinfo.udata_len))
3607                         rc = -EFAULT;
3608         }
3609
3610         kfree(ureq);
3611         kfree(qinfo.udata);
3612         return rc;
3613 }
3614 EXPORT_SYMBOL_GPL(qeth_snmp_command);
3615
3616 static inline int qeth_get_qdio_q_format(struct qeth_card *card)
3617 {
3618         switch (card->info.type) {
3619         case QETH_CARD_TYPE_IQD:
3620                 return 2;
3621         default:
3622                 return 0;
3623         }
3624 }
3625
3626 static int qeth_qdio_establish(struct qeth_card *card)
3627 {
3628         struct qdio_initialize init_data;
3629         char *qib_param_field;
3630         struct qdio_buffer **in_sbal_ptrs;
3631         struct qdio_buffer **out_sbal_ptrs;
3632         int i, j, k;
3633         int rc = 0;
3634
3635         QETH_DBF_TEXT(SETUP, 2, "qdioest");
3636
3637         qib_param_field = kzalloc(QDIO_MAX_BUFFERS_PER_Q * sizeof(char),
3638                               GFP_KERNEL);
3639         if (!qib_param_field)
3640                 return -ENOMEM;
3641
3642         qeth_create_qib_param_field(card, qib_param_field);
3643         qeth_create_qib_param_field_blkt(card, qib_param_field);
3644
3645         in_sbal_ptrs = kmalloc(QDIO_MAX_BUFFERS_PER_Q * sizeof(void *),
3646                                GFP_KERNEL);
3647         if (!in_sbal_ptrs) {
3648                 kfree(qib_param_field);
3649                 return -ENOMEM;
3650         }
3651         for (i = 0; i < QDIO_MAX_BUFFERS_PER_Q; ++i)
3652                 in_sbal_ptrs[i] = (struct qdio_buffer *)
3653                         virt_to_phys(card->qdio.in_q->bufs[i].buffer);
3654
3655         out_sbal_ptrs =
3656                 kmalloc(card->qdio.no_out_queues * QDIO_MAX_BUFFERS_PER_Q *
3657                         sizeof(void *), GFP_KERNEL);
3658         if (!out_sbal_ptrs) {
3659                 kfree(in_sbal_ptrs);
3660                 kfree(qib_param_field);
3661                 return -ENOMEM;
3662         }
3663         for (i = 0, k = 0; i < card->qdio.no_out_queues; ++i)
3664                 for (j = 0; j < QDIO_MAX_BUFFERS_PER_Q; ++j, ++k) {
3665                         out_sbal_ptrs[k] = (struct qdio_buffer *)virt_to_phys(
3666                                 card->qdio.out_qs[i]->bufs[j].buffer);
3667                 }
3668
3669         memset(&init_data, 0, sizeof(struct qdio_initialize));
3670         init_data.cdev                   = CARD_DDEV(card);
3671         init_data.q_format               = qeth_get_qdio_q_format(card);
3672         init_data.qib_param_field_format = 0;
3673         init_data.qib_param_field        = qib_param_field;
3674         init_data.no_input_qs            = 1;
3675         init_data.no_output_qs           = card->qdio.no_out_queues;
3676         init_data.input_handler          = card->discipline.input_handler;
3677         init_data.output_handler         = card->discipline.output_handler;
3678         init_data.int_parm               = (unsigned long) card;
3679         init_data.flags                  = QDIO_INBOUND_0COPY_SBALS |
3680                                            QDIO_OUTBOUND_0COPY_SBALS |
3681                                            QDIO_USE_OUTBOUND_PCIS;
3682         init_data.input_sbal_addr_array  = (void **) in_sbal_ptrs;
3683         init_data.output_sbal_addr_array = (void **) out_sbal_ptrs;
3684
3685         if (atomic_cmpxchg(&card->qdio.state, QETH_QDIO_ALLOCATED,
3686                 QETH_QDIO_ESTABLISHED) == QETH_QDIO_ALLOCATED) {
3687                 rc = qdio_initialize(&init_data);
3688                 if (rc)
3689                         atomic_set(&card->qdio.state, QETH_QDIO_ALLOCATED);
3690         }
3691         kfree(out_sbal_ptrs);
3692         kfree(in_sbal_ptrs);
3693         kfree(qib_param_field);
3694         return rc;
3695 }
3696
3697 static void qeth_core_free_card(struct qeth_card *card)
3698 {
3699
3700         QETH_DBF_TEXT(SETUP, 2, "freecrd");
3701         QETH_DBF_HEX(SETUP, 2, &card, sizeof(void *));
3702         qeth_clean_channel(&card->read);
3703         qeth_clean_channel(&card->write);
3704         if (card->dev)
3705                 free_netdev(card->dev);
3706         kfree(card->ip_tbd_list);
3707         qeth_free_qdio_buffers(card);
3708         kfree(card);
3709 }
3710
3711 static struct ccw_device_id qeth_ids[] = {
3712         {CCW_DEVICE(0x1731, 0x01), .driver_info = QETH_CARD_TYPE_OSAE},
3713         {CCW_DEVICE(0x1731, 0x05), .driver_info = QETH_CARD_TYPE_IQD},
3714         {CCW_DEVICE(0x1731, 0x06), .driver_info = QETH_CARD_TYPE_OSN},
3715         {},
3716 };
3717 MODULE_DEVICE_TABLE(ccw, qeth_ids);
3718
3719 static struct ccw_driver qeth_ccw_driver = {
3720         .name = "qeth",
3721         .ids = qeth_ids,
3722         .probe = ccwgroup_probe_ccwdev,
3723         .remove = ccwgroup_remove_ccwdev,
3724 };
3725
3726 static int qeth_core_driver_group(const char *buf, struct device *root_dev,
3727                                 unsigned long driver_id)
3728 {
3729         return ccwgroup_create_from_string(root_dev, driver_id,
3730                                            &qeth_ccw_driver, 3, buf);
3731 }
3732
3733 int qeth_core_hardsetup_card(struct qeth_card *card)
3734 {
3735         struct qdio_ssqd_desc *qdio_ssqd;
3736         int retries = 3;
3737         int mpno = 0;
3738         int rc;
3739
3740         QETH_DBF_TEXT(SETUP, 2, "hrdsetup");
3741         atomic_set(&card->force_alloc_skb, 0);
3742 retry:
3743         if (retries < 3) {
3744                 PRINT_WARN("Retrying to do IDX activates.\n");
3745                 ccw_device_set_offline(CARD_DDEV(card));
3746                 ccw_device_set_offline(CARD_WDEV(card));
3747                 ccw_device_set_offline(CARD_RDEV(card));
3748                 ccw_device_set_online(CARD_RDEV(card));
3749                 ccw_device_set_online(CARD_WDEV(card));
3750                 ccw_device_set_online(CARD_DDEV(card));
3751         }
3752         rc = qeth_qdio_clear_card(card, card->info.type != QETH_CARD_TYPE_IQD);
3753         if (rc == -ERESTARTSYS) {
3754                 QETH_DBF_TEXT(SETUP, 2, "break1");
3755                 return rc;
3756         } else if (rc) {
3757                 QETH_DBF_TEXT_(SETUP, 2, "1err%d", rc);
3758                 if (--retries < 0)
3759                         goto out;
3760                 else
3761                         goto retry;
3762         }
3763
3764         rc = qeth_get_unitaddr(card);
3765         if (rc) {
3766                 QETH_DBF_TEXT_(SETUP, 2, "2err%d", rc);
3767                 return rc;
3768         }
3769
3770         qdio_ssqd = qdio_get_ssqd_desc(CARD_DDEV(card));
3771         if (qdio_ssqd)
3772                 mpno = qdio_ssqd->pcnt;
3773         if (mpno)
3774                 mpno = min(mpno - 1, QETH_MAX_PORTNO);
3775         if (card->info.portno > mpno) {
3776                 QETH_DBF_MESSAGE(2, "Device %s does not offer port number %d"
3777                         "\n.", CARD_BUS_ID(card), card->info.portno);
3778                 rc = -ENODEV;
3779                 goto out;
3780         }
3781         qeth_init_tokens(card);
3782         qeth_init_func_level(card);
3783         rc = qeth_idx_activate_channel(&card->read, qeth_idx_read_cb);
3784         if (rc == -ERESTARTSYS) {
3785                 QETH_DBF_TEXT(SETUP, 2, "break2");
3786                 return rc;
3787         } else if (rc) {
3788                 QETH_DBF_TEXT_(SETUP, 2, "3err%d", rc);
3789                 if (--retries < 0)
3790                         goto out;
3791                 else
3792                         goto retry;
3793         }
3794         rc = qeth_idx_activate_channel(&card->write, qeth_idx_write_cb);
3795         if (rc == -ERESTARTSYS) {
3796                 QETH_DBF_TEXT(SETUP, 2, "break3");
3797                 return rc;
3798         } else if (rc) {
3799                 QETH_DBF_TEXT_(SETUP, 2, "4err%d", rc);
3800                 if (--retries < 0)
3801                         goto out;
3802                 else
3803                         goto retry;
3804         }
3805         rc = qeth_mpc_initialize(card);
3806         if (rc) {
3807                 QETH_DBF_TEXT_(SETUP, 2, "5err%d", rc);
3808                 goto out;
3809         }
3810         return 0;
3811 out:
3812         PRINT_ERR("Initialization in hardsetup failed! rc=%d\n", rc);
3813         return rc;
3814 }
3815 EXPORT_SYMBOL_GPL(qeth_core_hardsetup_card);
3816
3817 static inline int qeth_create_skb_frag(struct qdio_buffer_element *element,
3818                 struct sk_buff **pskb, int offset, int *pfrag, int data_len)
3819 {
3820         struct page *page = virt_to_page(element->addr);
3821         if (*pskb == NULL) {
3822                 /* the upper protocol layers assume that there is data in the
3823                  * skb itself. Copy a small amount (64 bytes) to make them
3824                  * happy. */
3825                 *pskb = dev_alloc_skb(64 + ETH_HLEN);
3826                 if (!(*pskb))
3827                         return -ENOMEM;
3828                 skb_reserve(*pskb, ETH_HLEN);
3829                 if (data_len <= 64) {
3830                         memcpy(skb_put(*pskb, data_len), element->addr + offset,
3831                                 data_len);
3832                 } else {
3833                         get_page(page);
3834                         memcpy(skb_put(*pskb, 64), element->addr + offset, 64);
3835                         skb_fill_page_desc(*pskb, *pfrag, page, offset + 64,
3836                                 data_len - 64);
3837                         (*pskb)->data_len += data_len - 64;
3838                         (*pskb)->len      += data_len - 64;
3839                         (*pskb)->truesize += data_len - 64;
3840                         (*pfrag)++;
3841                 }
3842         } else {
3843                 get_page(page);
3844                 skb_fill_page_desc(*pskb, *pfrag, page, offset, data_len);
3845                 (*pskb)->data_len += data_len;
3846                 (*pskb)->len      += data_len;
3847                 (*pskb)->truesize += data_len;
3848                 (*pfrag)++;
3849         }
3850         return 0;
3851 }
3852
3853 struct sk_buff *qeth_core_get_next_skb(struct qeth_card *card,
3854                 struct qdio_buffer *buffer,
3855                 struct qdio_buffer_element **__element, int *__offset,
3856                 struct qeth_hdr **hdr)
3857 {
3858         struct qdio_buffer_element *element = *__element;
3859         int offset = *__offset;
3860         struct sk_buff *skb = NULL;
3861         int skb_len;
3862         void *data_ptr;
3863         int data_len;
3864         int headroom = 0;
3865         int use_rx_sg = 0;
3866         int frag = 0;
3867
3868         /* qeth_hdr must not cross element boundaries */
3869         if (element->length < offset + sizeof(struct qeth_hdr)) {
3870                 if (qeth_is_last_sbale(element))
3871                         return NULL;
3872                 element++;
3873                 offset = 0;
3874                 if (element->length < sizeof(struct qeth_hdr))
3875                         return NULL;
3876         }
3877         *hdr = element->addr + offset;
3878
3879         offset += sizeof(struct qeth_hdr);
3880         if (card->options.layer2) {
3881                 if (card->info.type == QETH_CARD_TYPE_OSN) {
3882                         skb_len = (*hdr)->hdr.osn.pdu_length;
3883                         headroom = sizeof(struct qeth_hdr);
3884                 } else {
3885                         skb_len = (*hdr)->hdr.l2.pkt_length;
3886                 }
3887         } else {
3888                 skb_len = (*hdr)->hdr.l3.length;
3889                 if ((card->info.link_type == QETH_LINK_TYPE_LANE_TR) ||
3890                     (card->info.link_type == QETH_LINK_TYPE_HSTR))
3891                         headroom = TR_HLEN;
3892                 else
3893                         headroom = ETH_HLEN;
3894         }
3895
3896         if (!skb_len)
3897                 return NULL;
3898
3899         if ((skb_len >= card->options.rx_sg_cb) &&
3900             (!(card->info.type == QETH_CARD_TYPE_OSN)) &&
3901             (!atomic_read(&card->force_alloc_skb))) {
3902                 use_rx_sg = 1;
3903         } else {
3904                 skb = dev_alloc_skb(skb_len + headroom);
3905                 if (!skb)
3906                         goto no_mem;
3907                 if (headroom)
3908                         skb_reserve(skb, headroom);
3909         }
3910
3911         data_ptr = element->addr + offset;
3912         while (skb_len) {
3913                 data_len = min(skb_len, (int)(element->length - offset));
3914                 if (data_len) {
3915                         if (use_rx_sg) {
3916                                 if (qeth_create_skb_frag(element, &skb, offset,
3917                                     &frag, data_len))
3918                                         goto no_mem;
3919                         } else {
3920                                 memcpy(skb_put(skb, data_len), data_ptr,
3921                                         data_len);
3922                         }
3923                 }
3924                 skb_len -= data_len;
3925                 if (skb_len) {
3926                         if (qeth_is_last_sbale(element)) {
3927                                 QETH_DBF_TEXT(TRACE, 4, "unexeob");
3928                                 QETH_DBF_TEXT_(TRACE, 4, "%s",
3929                                         CARD_BUS_ID(card));
3930                                 QETH_DBF_TEXT(QERR, 2, "unexeob");
3931                                 QETH_DBF_TEXT_(QERR, 2, "%s",
3932                                         CARD_BUS_ID(card));
3933                                 QETH_DBF_HEX(MISC, 4, buffer, sizeof(*buffer));
3934                                 dev_kfree_skb_any(skb);
3935                                 card->stats.rx_errors++;
3936                                 return NULL;
3937                         }
3938                         element++;
3939                         offset = 0;
3940                         data_ptr = element->addr;
3941                 } else {
3942                         offset += data_len;
3943                 }
3944         }
3945         *__element = element;
3946         *__offset = offset;
3947         if (use_rx_sg && card->options.performance_stats) {
3948                 card->perf_stats.sg_skbs_rx++;
3949                 card->perf_stats.sg_frags_rx += skb_shinfo(skb)->nr_frags;
3950         }
3951         return skb;
3952 no_mem:
3953         if (net_ratelimit()) {
3954                 QETH_DBF_TEXT(TRACE, 2, "noskbmem");
3955                 QETH_DBF_TEXT_(TRACE, 2, "%s", CARD_BUS_ID(card));
3956         }
3957         card->stats.rx_dropped++;
3958         return NULL;
3959 }
3960 EXPORT_SYMBOL_GPL(qeth_core_get_next_skb);
3961
3962 static void qeth_unregister_dbf_views(void)
3963 {
3964         int x;
3965         for (x = 0; x < QETH_DBF_INFOS; x++) {
3966                 debug_unregister(qeth_dbf[x].id);
3967                 qeth_dbf[x].id = NULL;
3968         }
3969 }
3970
3971 void qeth_dbf_longtext(enum qeth_dbf_names dbf_nix, int level, char *fmt, ...)
3972 {
3973         char dbf_txt_buf[32];
3974         va_list args;
3975
3976         if (level > (qeth_dbf[dbf_nix].id)->level)
3977                 return;
3978         va_start(args, fmt);
3979         vsnprintf(dbf_txt_buf, sizeof(dbf_txt_buf), fmt, args);
3980         va_end(args);
3981         debug_text_event(qeth_dbf[dbf_nix].id, level, dbf_txt_buf);
3982 }
3983 EXPORT_SYMBOL_GPL(qeth_dbf_longtext);
3984
3985 static int qeth_register_dbf_views(void)
3986 {
3987         int ret;
3988         int x;
3989
3990         for (x = 0; x < QETH_DBF_INFOS; x++) {
3991                 /* register the areas */
3992                 qeth_dbf[x].id = debug_register(qeth_dbf[x].name,
3993                                                 qeth_dbf[x].pages,
3994                                                 qeth_dbf[x].areas,
3995                                                 qeth_dbf[x].len);
3996                 if (qeth_dbf[x].id == NULL) {
3997                         qeth_unregister_dbf_views();
3998                         return -ENOMEM;
3999                 }
4000
4001                 /* register a view */
4002                 ret = debug_register_view(qeth_dbf[x].id, qeth_dbf[x].view);
4003                 if (ret) {
4004                         qeth_unregister_dbf_views();
4005                         return ret;
4006                 }
4007
4008                 /* set a passing level */
4009                 debug_set_level(qeth_dbf[x].id, qeth_dbf[x].level);
4010         }
4011
4012         return 0;
4013 }
4014
4015 int qeth_core_load_discipline(struct qeth_card *card,
4016                 enum qeth_discipline_id discipline)
4017 {
4018         int rc = 0;
4019         switch (discipline) {
4020         case QETH_DISCIPLINE_LAYER3:
4021                 card->discipline.ccwgdriver = try_then_request_module(
4022                         symbol_get(qeth_l3_ccwgroup_driver),
4023                         "qeth_l3");
4024                 break;
4025         case QETH_DISCIPLINE_LAYER2:
4026                 card->discipline.ccwgdriver = try_then_request_module(
4027                         symbol_get(qeth_l2_ccwgroup_driver),
4028                         "qeth_l2");
4029                 break;
4030         }
4031         if (!card->discipline.ccwgdriver) {
4032                 PRINT_ERR("Support for discipline %d not present\n",
4033                                 discipline);
4034                 rc = -EINVAL;
4035         }
4036         return rc;
4037 }
4038
4039 void qeth_core_free_discipline(struct qeth_card *card)
4040 {
4041         if (card->options.layer2)
4042                 symbol_put(qeth_l2_ccwgroup_driver);
4043         else
4044                 symbol_put(qeth_l3_ccwgroup_driver);
4045         card->discipline.ccwgdriver = NULL;
4046 }
4047
4048 static int qeth_core_probe_device(struct ccwgroup_device *gdev)
4049 {
4050         struct qeth_card *card;
4051         struct device *dev;
4052         int rc;
4053         unsigned long flags;
4054
4055         QETH_DBF_TEXT(SETUP, 2, "probedev");
4056
4057         dev = &gdev->dev;
4058         if (!get_device(dev))
4059                 return -ENODEV;
4060
4061         QETH_DBF_TEXT_(SETUP, 2, "%s", gdev->dev.bus_id);
4062
4063         card = qeth_alloc_card();
4064         if (!card) {
4065                 QETH_DBF_TEXT_(SETUP, 2, "1err%d", -ENOMEM);
4066                 rc = -ENOMEM;
4067                 goto err_dev;
4068         }
4069         card->read.ccwdev  = gdev->cdev[0];
4070         card->write.ccwdev = gdev->cdev[1];
4071         card->data.ccwdev  = gdev->cdev[2];
4072         dev_set_drvdata(&gdev->dev, card);
4073         card->gdev = gdev;
4074         gdev->cdev[0]->handler = qeth_irq;
4075         gdev->cdev[1]->handler = qeth_irq;
4076         gdev->cdev[2]->handler = qeth_irq;
4077
4078         rc = qeth_determine_card_type(card);
4079         if (rc) {
4080                 QETH_DBF_TEXT_(SETUP, 2, "3err%d", rc);
4081                 goto err_card;
4082         }
4083         rc = qeth_setup_card(card);
4084         if (rc) {
4085                 QETH_DBF_TEXT_(SETUP, 2, "2err%d", rc);
4086                 goto err_card;
4087         }
4088
4089         if (card->info.type == QETH_CARD_TYPE_OSN) {
4090                 rc = qeth_core_create_osn_attributes(dev);
4091                 if (rc)
4092                         goto err_card;
4093                 rc = qeth_core_load_discipline(card, QETH_DISCIPLINE_LAYER2);
4094                 if (rc) {
4095                         qeth_core_remove_osn_attributes(dev);
4096                         goto err_card;
4097                 }
4098                 rc = card->discipline.ccwgdriver->probe(card->gdev);
4099                 if (rc) {
4100                         qeth_core_free_discipline(card);
4101                         qeth_core_remove_osn_attributes(dev);
4102                         goto err_card;
4103                 }
4104         } else {
4105                 rc = qeth_core_create_device_attributes(dev);
4106                 if (rc)
4107                         goto err_card;
4108         }
4109
4110         write_lock_irqsave(&qeth_core_card_list.rwlock, flags);
4111         list_add_tail(&card->list, &qeth_core_card_list.list);
4112         write_unlock_irqrestore(&qeth_core_card_list.rwlock, flags);
4113         return 0;
4114
4115 err_card:
4116         qeth_core_free_card(card);
4117 err_dev:
4118         put_device(dev);
4119         return rc;
4120 }
4121
4122 static void qeth_core_remove_device(struct ccwgroup_device *gdev)
4123 {
4124         unsigned long flags;
4125         struct qeth_card *card = dev_get_drvdata(&gdev->dev);
4126
4127         if (card->discipline.ccwgdriver) {
4128                 card->discipline.ccwgdriver->remove(gdev);
4129                 qeth_core_free_discipline(card);
4130         }
4131
4132         if (card->info.type == QETH_CARD_TYPE_OSN) {
4133                 qeth_core_remove_osn_attributes(&gdev->dev);
4134         } else {
4135                 qeth_core_remove_device_attributes(&gdev->dev);
4136         }
4137         write_lock_irqsave(&qeth_core_card_list.rwlock, flags);
4138         list_del(&card->list);
4139         write_unlock_irqrestore(&qeth_core_card_list.rwlock, flags);
4140         qeth_core_free_card(card);
4141         dev_set_drvdata(&gdev->dev, NULL);
4142         put_device(&gdev->dev);
4143         return;
4144 }
4145
4146 static int qeth_core_set_online(struct ccwgroup_device *gdev)
4147 {
4148         struct qeth_card *card = dev_get_drvdata(&gdev->dev);
4149         int rc = 0;
4150         int def_discipline;
4151
4152         if (!card->discipline.ccwgdriver) {
4153                 if (card->info.type == QETH_CARD_TYPE_IQD)
4154                         def_discipline = QETH_DISCIPLINE_LAYER3;
4155                 else
4156                         def_discipline = QETH_DISCIPLINE_LAYER2;
4157                 rc = qeth_core_load_discipline(card, def_discipline);
4158                 if (rc)
4159                         goto err;
4160                 rc = card->discipline.ccwgdriver->probe(card->gdev);
4161                 if (rc)
4162                         goto err;
4163         }
4164         rc = card->discipline.ccwgdriver->set_online(gdev);
4165 err:
4166         return rc;
4167 }
4168
4169 static int qeth_core_set_offline(struct ccwgroup_device *gdev)
4170 {
4171         struct qeth_card *card = dev_get_drvdata(&gdev->dev);
4172         return card->discipline.ccwgdriver->set_offline(gdev);
4173 }
4174
4175 static void qeth_core_shutdown(struct ccwgroup_device *gdev)
4176 {
4177         struct qeth_card *card = dev_get_drvdata(&gdev->dev);
4178         if (card->discipline.ccwgdriver &&
4179             card->discipline.ccwgdriver->shutdown)
4180                 card->discipline.ccwgdriver->shutdown(gdev);
4181 }
4182
4183 static struct ccwgroup_driver qeth_core_ccwgroup_driver = {
4184         .owner = THIS_MODULE,
4185         .name = "qeth",
4186         .driver_id = 0xD8C5E3C8,
4187         .probe = qeth_core_probe_device,
4188         .remove = qeth_core_remove_device,
4189         .set_online = qeth_core_set_online,
4190         .set_offline = qeth_core_set_offline,
4191         .shutdown = qeth_core_shutdown,
4192 };
4193
4194 static ssize_t
4195 qeth_core_driver_group_store(struct device_driver *ddrv, const char *buf,
4196                            size_t count)
4197 {
4198         int err;
4199         err = qeth_core_driver_group(buf, qeth_core_root_dev,
4200                                         qeth_core_ccwgroup_driver.driver_id);
4201         if (err)
4202                 return err;
4203         else
4204                 return count;
4205 }
4206
4207 static DRIVER_ATTR(group, 0200, NULL, qeth_core_driver_group_store);
4208
4209 static struct {
4210         const char str[ETH_GSTRING_LEN];
4211 } qeth_ethtool_stats_keys[] = {
4212 /*  0 */{"rx skbs"},
4213         {"rx buffers"},
4214         {"tx skbs"},
4215         {"tx buffers"},
4216         {"tx skbs no packing"},
4217         {"tx buffers no packing"},
4218         {"tx skbs packing"},
4219         {"tx buffers packing"},
4220         {"tx sg skbs"},
4221         {"tx sg frags"},
4222 /* 10 */{"rx sg skbs"},
4223         {"rx sg frags"},
4224         {"rx sg page allocs"},
4225         {"tx large kbytes"},
4226         {"tx large count"},
4227         {"tx pk state ch n->p"},
4228         {"tx pk state ch p->n"},
4229         {"tx pk watermark low"},
4230         {"tx pk watermark high"},
4231         {"queue 0 buffer usage"},
4232 /* 20 */{"queue 1 buffer usage"},
4233         {"queue 2 buffer usage"},
4234         {"queue 3 buffer usage"},
4235         {"rx handler time"},
4236         {"rx handler count"},
4237         {"rx do_QDIO time"},
4238         {"rx do_QDIO count"},
4239         {"tx handler time"},
4240         {"tx handler count"},
4241         {"tx time"},
4242 /* 30 */{"tx count"},
4243         {"tx do_QDIO time"},
4244         {"tx do_QDIO count"},
4245 };
4246
4247 int qeth_core_get_stats_count(struct net_device *dev)
4248 {
4249         return (sizeof(qeth_ethtool_stats_keys) / ETH_GSTRING_LEN);
4250 }
4251 EXPORT_SYMBOL_GPL(qeth_core_get_stats_count);
4252
4253 void qeth_core_get_ethtool_stats(struct net_device *dev,
4254                 struct ethtool_stats *stats, u64 *data)
4255 {
4256         struct qeth_card *card = dev->ml_priv;
4257         data[0] = card->stats.rx_packets -
4258                                 card->perf_stats.initial_rx_packets;
4259         data[1] = card->perf_stats.bufs_rec;
4260         data[2] = card->stats.tx_packets -
4261                                 card->perf_stats.initial_tx_packets;
4262         data[3] = card->perf_stats.bufs_sent;
4263         data[4] = card->stats.tx_packets - card->perf_stats.initial_tx_packets
4264                         - card->perf_stats.skbs_sent_pack;
4265         data[5] = card->perf_stats.bufs_sent - card->perf_stats.bufs_sent_pack;
4266         data[6] = card->perf_stats.skbs_sent_pack;
4267         data[7] = card->perf_stats.bufs_sent_pack;
4268         data[8] = card->perf_stats.sg_skbs_sent;
4269         data[9] = card->perf_stats.sg_frags_sent;
4270         data[10] = card->perf_stats.sg_skbs_rx;
4271         data[11] = card->perf_stats.sg_frags_rx;
4272         data[12] = card->perf_stats.sg_alloc_page_rx;
4273         data[13] = (card->perf_stats.large_send_bytes >> 10);
4274         data[14] = card->perf_stats.large_send_cnt;
4275         data[15] = card->perf_stats.sc_dp_p;
4276         data[16] = card->perf_stats.sc_p_dp;
4277         data[17] = QETH_LOW_WATERMARK_PACK;
4278         data[18] = QETH_HIGH_WATERMARK_PACK;
4279         data[19] = atomic_read(&card->qdio.out_qs[0]->used_buffers);
4280         data[20] = (card->qdio.no_out_queues > 1) ?
4281                         atomic_read(&card->qdio.out_qs[1]->used_buffers) : 0;
4282         data[21] = (card->qdio.no_out_queues > 2) ?
4283                         atomic_read(&card->qdio.out_qs[2]->used_buffers) : 0;
4284         data[22] = (card->qdio.no_out_queues > 3) ?
4285                         atomic_read(&card->qdio.out_qs[3]->used_buffers) : 0;
4286         data[23] = card->perf_stats.inbound_time;
4287         data[24] = card->perf_stats.inbound_cnt;
4288         data[25] = card->perf_stats.inbound_do_qdio_time;
4289         data[26] = card->perf_stats.inbound_do_qdio_cnt;
4290         data[27] = card->perf_stats.outbound_handler_time;
4291         data[28] = card->perf_stats.outbound_handler_cnt;
4292         data[29] = card->perf_stats.outbound_time;
4293         data[30] = card->perf_stats.outbound_cnt;
4294         data[31] = card->perf_stats.outbound_do_qdio_time;
4295         data[32] = card->perf_stats.outbound_do_qdio_cnt;
4296 }
4297 EXPORT_SYMBOL_GPL(qeth_core_get_ethtool_stats);
4298
4299 void qeth_core_get_strings(struct net_device *dev, u32 stringset, u8 *data)
4300 {
4301         switch (stringset) {
4302         case ETH_SS_STATS:
4303                 memcpy(data, &qeth_ethtool_stats_keys,
4304                         sizeof(qeth_ethtool_stats_keys));
4305                 break;
4306         default:
4307                 WARN_ON(1);
4308                 break;
4309         }
4310 }
4311 EXPORT_SYMBOL_GPL(qeth_core_get_strings);
4312
4313 void qeth_core_get_drvinfo(struct net_device *dev,
4314                 struct ethtool_drvinfo *info)
4315 {
4316         struct qeth_card *card = dev->ml_priv;
4317         if (card->options.layer2)
4318                 strcpy(info->driver, "qeth_l2");
4319         else
4320                 strcpy(info->driver, "qeth_l3");
4321
4322         strcpy(info->version, "1.0");
4323         strcpy(info->fw_version, card->info.mcl_level);
4324         sprintf(info->bus_info, "%s/%s/%s",
4325                         CARD_RDEV_ID(card),
4326                         CARD_WDEV_ID(card),
4327                         CARD_DDEV_ID(card));
4328 }
4329 EXPORT_SYMBOL_GPL(qeth_core_get_drvinfo);
4330
4331 int qeth_core_ethtool_get_settings(struct net_device *netdev,
4332                                         struct ethtool_cmd *ecmd)
4333 {
4334         struct qeth_card *card = netdev->ml_priv;
4335         enum qeth_link_types link_type;
4336
4337         if ((card->info.type == QETH_CARD_TYPE_IQD) || (card->info.guestlan))
4338                 link_type = QETH_LINK_TYPE_10GBIT_ETH;
4339         else
4340                 link_type = card->info.link_type;
4341
4342         ecmd->transceiver = XCVR_INTERNAL;
4343         ecmd->supported = SUPPORTED_Autoneg;
4344         ecmd->advertising = ADVERTISED_Autoneg;
4345         ecmd->duplex = DUPLEX_FULL;
4346         ecmd->autoneg = AUTONEG_ENABLE;
4347
4348         switch (link_type) {
4349         case QETH_LINK_TYPE_FAST_ETH:
4350         case QETH_LINK_TYPE_LANE_ETH100:
4351                 ecmd->supported |= SUPPORTED_10baseT_Half |
4352                                         SUPPORTED_10baseT_Full |
4353                                         SUPPORTED_100baseT_Half |
4354                                         SUPPORTED_100baseT_Full |
4355                                         SUPPORTED_TP;
4356                 ecmd->advertising |= ADVERTISED_10baseT_Half |
4357                                         ADVERTISED_10baseT_Full |
4358                                         ADVERTISED_100baseT_Half |
4359                                         ADVERTISED_100baseT_Full |
4360                                         ADVERTISED_TP;
4361                 ecmd->speed = SPEED_100;
4362                 ecmd->port = PORT_TP;
4363                 break;
4364
4365         case QETH_LINK_TYPE_GBIT_ETH:
4366         case QETH_LINK_TYPE_LANE_ETH1000:
4367                 ecmd->supported |= SUPPORTED_10baseT_Half |
4368                                         SUPPORTED_10baseT_Full |
4369                                         SUPPORTED_100baseT_Half |
4370                                         SUPPORTED_100baseT_Full |
4371                                         SUPPORTED_1000baseT_Half |
4372                                         SUPPORTED_1000baseT_Full |
4373                                         SUPPORTED_FIBRE;
4374                 ecmd->advertising |= ADVERTISED_10baseT_Half |
4375                                         ADVERTISED_10baseT_Full |
4376                                         ADVERTISED_100baseT_Half |
4377                                         ADVERTISED_100baseT_Full |
4378                                         ADVERTISED_1000baseT_Half |
4379                                         ADVERTISED_1000baseT_Full |
4380                                         ADVERTISED_FIBRE;
4381                 ecmd->speed = SPEED_1000;
4382                 ecmd->port = PORT_FIBRE;
4383                 break;
4384
4385         case QETH_LINK_TYPE_10GBIT_ETH:
4386                 ecmd->supported |= SUPPORTED_10baseT_Half |
4387                                         SUPPORTED_10baseT_Full |
4388                                         SUPPORTED_100baseT_Half |
4389                                         SUPPORTED_100baseT_Full |
4390                                         SUPPORTED_1000baseT_Half |
4391                                         SUPPORTED_1000baseT_Full |
4392                                         SUPPORTED_10000baseT_Full |
4393                                         SUPPORTED_FIBRE;
4394                 ecmd->advertising |= ADVERTISED_10baseT_Half |
4395                                         ADVERTISED_10baseT_Full |
4396                                         ADVERTISED_100baseT_Half |
4397                                         ADVERTISED_100baseT_Full |
4398                                         ADVERTISED_1000baseT_Half |
4399                                         ADVERTISED_1000baseT_Full |
4400                                         ADVERTISED_10000baseT_Full |
4401                                         ADVERTISED_FIBRE;
4402                 ecmd->speed = SPEED_10000;
4403                 ecmd->port = PORT_FIBRE;
4404                 break;
4405
4406         default:
4407                 ecmd->supported |= SUPPORTED_10baseT_Half |
4408                                         SUPPORTED_10baseT_Full |
4409                                         SUPPORTED_TP;
4410                 ecmd->advertising |= ADVERTISED_10baseT_Half |
4411                                         ADVERTISED_10baseT_Full |
4412                                         ADVERTISED_TP;
4413                 ecmd->speed = SPEED_10;
4414                 ecmd->port = PORT_TP;
4415         }
4416
4417         return 0;
4418 }
4419 EXPORT_SYMBOL_GPL(qeth_core_ethtool_get_settings);
4420
4421 static int __init qeth_core_init(void)
4422 {
4423         int rc;
4424
4425         PRINT_INFO("loading core functions\n");
4426         INIT_LIST_HEAD(&qeth_core_card_list.list);
4427         rwlock_init(&qeth_core_card_list.rwlock);
4428
4429         rc = qeth_register_dbf_views();
4430         if (rc)
4431                 goto out_err;
4432         rc = ccw_driver_register(&qeth_ccw_driver);
4433         if (rc)
4434                 goto ccw_err;
4435         rc = ccwgroup_driver_register(&qeth_core_ccwgroup_driver);
4436         if (rc)
4437                 goto ccwgroup_err;
4438         rc = driver_create_file(&qeth_core_ccwgroup_driver.driver,
4439                                 &driver_attr_group);
4440         if (rc)
4441                 goto driver_err;
4442         qeth_core_root_dev = s390_root_dev_register("qeth");
4443         rc = IS_ERR(qeth_core_root_dev) ? PTR_ERR(qeth_core_root_dev) : 0;
4444         if (rc)
4445                 goto register_err;
4446         return 0;
4447
4448 register_err:
4449         driver_remove_file(&qeth_core_ccwgroup_driver.driver,
4450                            &driver_attr_group);
4451 driver_err:
4452         ccwgroup_driver_unregister(&qeth_core_ccwgroup_driver);
4453 ccwgroup_err:
4454         ccw_driver_unregister(&qeth_ccw_driver);
4455 ccw_err:
4456         qeth_unregister_dbf_views();
4457 out_err:
4458         PRINT_ERR("Initialization failed with code %d\n", rc);
4459         return rc;
4460 }
4461
4462 static void __exit qeth_core_exit(void)
4463 {
4464         s390_root_dev_unregister(qeth_core_root_dev);
4465         driver_remove_file(&qeth_core_ccwgroup_driver.driver,
4466                            &driver_attr_group);
4467         ccwgroup_driver_unregister(&qeth_core_ccwgroup_driver);
4468         ccw_driver_unregister(&qeth_ccw_driver);
4469         qeth_unregister_dbf_views();
4470         PRINT_INFO("core functions removed\n");
4471 }
4472
4473 module_init(qeth_core_init);
4474 module_exit(qeth_core_exit);
4475 MODULE_AUTHOR("Frank Blaschka <frank.blaschka@de.ibm.com>");
4476 MODULE_DESCRIPTION("qeth core functions");
4477 MODULE_LICENSE("GPL");